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authorXiubo Li2014-02-25 10:54:51 +0100
committerMark Brown2014-02-26 00:51:24 +0100
commit13cde090030c7d00e991c85b87c12891cc8e4df4 (patch)
tree5f30766346e0326b272deb23f1f4ad759c64a29b /tools/perf/util/include/linux
parentASoC: fsl: make sure the regmap-mmio is actually enabled (diff)
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ASoC: fsl-sai: fix Freescale SAI DAI format setting.
o Fix some bugs of fsl_sai_set_dai_fmt_tr(). o Add SND_SOC_DAIFMT_LEFT_J support. o Add SND_SOC_DAIFMT_CBS_CFM support. o Add SND_SOC_DAIFMT_CBM_CFS support. o And SND_SOC_DAIFMT_RIGHT_J need to be done in the future. Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Signed-off-by: Mark Brown <broonie@linaro.org>
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18197 files changed, 1421570 insertions, 567904 deletions
diff --git a/.mailmap b/.mailmap
index 5273cfd70ad6..c7b10caecc4e 100644
--- a/.mailmap
+++ b/.mailmap
@@ -68,6 +68,8 @@ Jacob Shin <Jacob.Shin@amd.com>
James Bottomley <jejb@mulgrave.(none)>
James Bottomley <jejb@titanic.il.steeleye.com>
James E Wilson <wilson@specifix.com>
+James Hogan <jhogan@kernel.org> <james.hogan@imgtec.com>
+James Hogan <jhogan@kernel.org> <james@albanarts.com>
James Ketrenos <jketreno@io.(none)>
Javi Merino <javi.merino@kernel.org> <javi.merino@arm.com>
<javier@osg.samsung.com> <javier.martinez@collabora.co.uk>
diff --git a/CREDITS b/CREDITS
index 5d09c26d69cd..9fbd2c77b546 100644
--- a/CREDITS
+++ b/CREDITS
@@ -2090,7 +2090,7 @@ S: Kuala Lumpur, Malaysia
N: Mohit Kumar
D: ST Microelectronics SPEAr13xx PCI host bridge driver
-D: Synopsys Designware PCI host bridge driver
+D: Synopsys DesignWare PCI host bridge driver
N: Gabor Kuti
E: seasons@falcon.sch.bme.hu
@@ -2606,11 +2606,9 @@ E: tmolina@cablespeed.com
D: bug fixes, documentation, minor hackery
N: Paul Moore
-E: paul.moore@hp.com
-D: NetLabel author
-S: Hewlett-Packard
-S: 110 Spit Brook Road
-S: Nashua, NH 03062
+E: paul@paul-moore.com
+W: http://www.paul-moore.com
+D: NetLabel, SELinux, audit
N: James Morris
E: jmorris@namei.org
diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX
index ed3e5e949fce..3bec49c33bbb 100644
--- a/Documentation/00-INDEX
+++ b/Documentation/00-INDEX
@@ -24,8 +24,6 @@ DMA-ISA-LPC.txt
- How to do DMA with ISA (and LPC) devices.
DMA-attributes.txt
- listing of the various possible attributes a DMA region can have
-DocBook/
- - directory with DocBook templates etc. for kernel documentation.
EDID/
- directory with info on customizing EDID for broken gfx/displays.
IPMI.txt
@@ -40,8 +38,6 @@ Intel-IOMMU.txt
- basic info on the Intel IOMMU virtualization support.
Makefile
- It's not of interest for those who aren't touching the build system.
-Makefile.sphinx
- - It's not of interest for those who aren't touching the build system.
PCI/
- info related to PCI drivers.
RCU/
@@ -246,8 +242,6 @@ kprobes.txt
- documents the kernel probes debugging feature.
kref.txt
- docs on adding reference counters (krefs) to kernel objects.
-kselftest.txt
- - small unittests for (some) individual codepaths in the kernel.
laptops/
- directory with laptop related info and laptop driver documentation.
ldm.txt
@@ -264,6 +258,8 @@ logo.gif
- full colour GIF image of Linux logo (penguin - Tux).
logo.txt
- info on creator of above logo & site to get additional images from.
+lsm.txt
+ - Linux Security Modules: General Security Hooks for Linux
lzo.txt
- kernel LZO decompressor input formats
m68k/
diff --git a/Documentation/ABI/stable/sysfs-bus-nvmem b/Documentation/ABI/stable/sysfs-bus-nvmem
new file mode 100644
index 000000000000..5923ab4620c5
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-bus-nvmem
@@ -0,0 +1,19 @@
+What: /sys/bus/nvmem/devices/.../nvmem
+Date: July 2015
+KernelVersion: 4.2
+Contact: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+Description:
+ This file allows user to read/write the raw NVMEM contents.
+ Permissions for write to this file depends on the nvmem
+ provider configuration.
+
+ ex:
+ hexdump /sys/bus/nvmem/devices/qfprom0/nvmem
+
+ 0000000 0000 0000 0000 0000 0000 0000 0000 0000
+ *
+ 00000a0 db10 2240 0000 e000 0c00 0c00 0000 0c00
+ 0000000 0000 0000 0000 0000 0000 0000 0000 0000
+ ...
+ *
+ 0001000
diff --git a/Documentation/ABI/stable/sysfs-class-udc b/Documentation/ABI/stable/sysfs-class-udc
index 85d3dac2e204..d1e2f3ec1fc9 100644
--- a/Documentation/ABI/stable/sysfs-class-udc
+++ b/Documentation/ABI/stable/sysfs-class-udc
@@ -55,14 +55,6 @@ Description:
Indicates the maximum USB speed supported by this port.
Users:
-What: /sys/class/udc/<udc>/maximum_speed
-Date: June 2011
-KernelVersion: 3.1
-Contact: Felipe Balbi <balbi@kernel.org>
-Description:
- Indicates the maximum USB speed supported by this port.
-Users:
-
What: /sys/class/udc/<udc>/soft_connect
Date: June 2011
KernelVersion: 3.1
@@ -91,3 +83,11 @@ Description:
'configured', and 'suspended'; however not all USB Device
Controllers support reporting all states.
Users:
+
+What: /sys/class/udc/<udc>/function
+Date: June 2017
+KernelVersion: 4.13
+Contact: Felipe Balbi <balbi@kernel.org>
+Description:
+ Prints out name of currently running USB Gadget Driver.
+Users:
diff --git a/Documentation/ABI/stable/sysfs-driver-aspeed-vuart b/Documentation/ABI/stable/sysfs-driver-aspeed-vuart
new file mode 100644
index 000000000000..8062953ce77b
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-driver-aspeed-vuart
@@ -0,0 +1,15 @@
+What: /sys/bus/platform/drivers/aspeed-vuart/*/lpc_address
+Date: April 2017
+Contact: Jeremy Kerr <jk@ozlabs.org>
+Description: Configures which IO port the host side of the UART
+ will appear on the host <-> BMC LPC bus.
+Users: OpenBMC. Proposed changes should be mailed to
+ openbmc@lists.ozlabs.org
+
+What: /sys/bus/platform/drivers/aspeed-vuart*/sirq
+Date: April 2017
+Contact: Jeremy Kerr <jk@ozlabs.org>
+Description: Configures which interrupt number the host side of
+ the UART will appear on the host <-> BMC LPC bus.
+Users: OpenBMC. Proposed changes should be mailed to
+ openbmc@lists.ozlabs.org
diff --git a/Documentation/ABI/stable/sysfs-driver-dma-ioatdma b/Documentation/ABI/stable/sysfs-driver-dma-ioatdma
new file mode 100644
index 000000000000..420c1d09e42f
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-driver-dma-ioatdma
@@ -0,0 +1,30 @@
+What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/cap
+Date: December 3, 2009
+KernelVersion: 2.6.32
+Contact: dmaengine@vger.kernel.org
+Description: Capabilities the DMA supports.Currently there are DMA_PQ, DMA_PQ_VAL,
+ DMA_XOR,DMA_XOR_VAL,DMA_INTERRUPT.
+
+What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/ring_active
+Date: December 3, 2009
+KernelVersion: 2.6.32
+Contact: dmaengine@vger.kernel.org
+Description: The number of descriptors active in the ring.
+
+What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/ring_size
+Date: December 3, 2009
+KernelVersion: 2.6.32
+Contact: dmaengine@vger.kernel.org
+Description: Descriptor ring size, total number of descriptors available.
+
+What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/version
+Date: December 3, 2009
+KernelVersion: 2.6.32
+Contact: dmaengine@vger.kernel.org
+Description: Version of ioatdma device.
+
+What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/intr_coalesce
+Date: August 8, 2017
+KernelVersion: 4.14
+Contact: dmaengine@vger.kernel.org
+Description: Tune-able interrupt delay value per channel basis.
diff --git a/Documentation/ABI/stable/sysfs-hypervisor-xen b/Documentation/ABI/stable/sysfs-hypervisor-xen
new file mode 100644
index 000000000000..3cf5cdfcd9a8
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-hypervisor-xen
@@ -0,0 +1,119 @@
+What: /sys/hypervisor/compilation/compile_date
+Date: March 2009
+KernelVersion: 2.6.30
+Contact: xen-devel@lists.xenproject.org
+Description: If running under Xen:
+ Contains the build time stamp of the Xen hypervisor
+ Might return "<denied>" in case of special security settings
+ in the hypervisor.
+
+What: /sys/hypervisor/compilation/compiled_by
+Date: March 2009
+KernelVersion: 2.6.30
+Contact: xen-devel@lists.xenproject.org
+Description: If running under Xen:
+ Contains information who built the Xen hypervisor
+ Might return "<denied>" in case of special security settings
+ in the hypervisor.
+
+What: /sys/hypervisor/compilation/compiler
+Date: March 2009
+KernelVersion: 2.6.30
+Contact: xen-devel@lists.xenproject.org
+Description: If running under Xen:
+ Compiler which was used to build the Xen hypervisor
+ Might return "<denied>" in case of special security settings
+ in the hypervisor.
+
+What: /sys/hypervisor/properties/capabilities
+Date: March 2009
+KernelVersion: 2.6.30
+Contact: xen-devel@lists.xenproject.org
+Description: If running under Xen:
+ Space separated list of supported guest system types. Each type
+ is in the format: <class>-<major>.<minor>-<arch>
+ With:
+ <class>: "xen" -- x86: paravirtualized, arm: standard
+ "hvm" -- x86 only: fully virtualized
+ <major>: major guest interface version
+ <minor>: minor guest interface version
+ <arch>: architecture, e.g.:
+ "x86_32": 32 bit x86 guest without PAE
+ "x86_32p": 32 bit x86 guest with PAE
+ "x86_64": 64 bit x86 guest
+ "armv7l": 32 bit arm guest
+ "aarch64": 64 bit arm guest
+
+What: /sys/hypervisor/properties/changeset
+Date: March 2009
+KernelVersion: 2.6.30
+Contact: xen-devel@lists.xenproject.org
+Description: If running under Xen:
+ Changeset of the hypervisor (git commit)
+ Might return "<denied>" in case of special security settings
+ in the hypervisor.
+
+What: /sys/hypervisor/properties/features
+Date: March 2009
+KernelVersion: 2.6.30
+Contact: xen-devel@lists.xenproject.org
+Description: If running under Xen:
+ Features the Xen hypervisor supports for the guest as defined
+ in include/xen/interface/features.h printed as a hex value.
+
+What: /sys/hypervisor/properties/pagesize
+Date: March 2009
+KernelVersion: 2.6.30
+Contact: xen-devel@lists.xenproject.org
+Description: If running under Xen:
+ Default page size of the hypervisor printed as a hex value.
+ Might return "0" in case of special security settings
+ in the hypervisor.
+
+What: /sys/hypervisor/properties/virtual_start
+Date: March 2009
+KernelVersion: 2.6.30
+Contact: xen-devel@lists.xenproject.org
+Description: If running under Xen:
+ Virtual address of the hypervisor as a hex value.
+
+What: /sys/hypervisor/type
+Date: March 2009
+KernelVersion: 2.6.30
+Contact: xen-devel@lists.xenproject.org
+Description: If running under Xen:
+ Type of hypervisor:
+ "xen": Xen hypervisor
+
+What: /sys/hypervisor/uuid
+Date: March 2009
+KernelVersion: 2.6.30
+Contact: xen-devel@lists.xenproject.org
+Description: If running under Xen:
+ UUID of the guest as known to the Xen hypervisor.
+
+What: /sys/hypervisor/version/extra
+Date: March 2009
+KernelVersion: 2.6.30
+Contact: xen-devel@lists.xenproject.org
+Description: If running under Xen:
+ The Xen version is in the format <major>.<minor><extra>
+ This is the <extra> part of it.
+ Might return "<denied>" in case of special security settings
+ in the hypervisor.
+
+What: /sys/hypervisor/version/major
+Date: March 2009
+KernelVersion: 2.6.30
+Contact: xen-devel@lists.xenproject.org
+Description: If running under Xen:
+ The Xen version is in the format <major>.<minor><extra>
+ This is the <major> part of it.
+
+What: /sys/hypervisor/version/minor
+Date: March 2009
+KernelVersion: 2.6.30
+Contact: xen-devel@lists.xenproject.org
+Description: If running under Xen:
+ The Xen version is in the format <major>.<minor><extra>
+ This is the <minor> part of it.
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-rndis b/Documentation/ABI/testing/configfs-usb-gadget-rndis
index e32879b84b4d..137399095d74 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-rndis
+++ b/Documentation/ABI/testing/configfs-usb-gadget-rndis
@@ -12,3 +12,6 @@ Description:
Ethernet over USB link
dev_addr - MAC address of device's end of this
Ethernet over USB link
+ class - USB interface class, default is 02 (hex)
+ subclass - USB interface subclass, default is 06 (hex)
+ protocol - USB interface protocol, default is 00 (hex)
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uac1 b/Documentation/ABI/testing/configfs-usb-gadget-uac1
index 8ba9a123316e..abfe447c848f 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-uac1
+++ b/Documentation/ABI/testing/configfs-usb-gadget-uac1
@@ -1,12 +1,14 @@
What: /config/usb-gadget/gadget/functions/uac1.name
-Date: Sep 2014
-KernelVersion: 3.18
+Date: June 2017
+KernelVersion: 4.14
Description:
The attributes:
- audio_buf_size - audio buffer size
- fn_cap - capture pcm device file name
- fn_cntl - control device file name
- fn_play - playback pcm device file name
- req_buf_size - ISO OUT endpoint request buffer size
- req_count - ISO OUT endpoint request count
+ c_chmask - capture channel mask
+ c_srate - capture sampling rate
+ c_ssize - capture sample size (bytes)
+ p_chmask - playback channel mask
+ p_srate - playback sampling rate
+ p_ssize - playback sample size (bytes)
+ req_number - the number of pre-allocated request
+ for both capture and playback
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uac1_legacy b/Documentation/ABI/testing/configfs-usb-gadget-uac1_legacy
new file mode 100644
index 000000000000..b2eaefd9bc49
--- /dev/null
+++ b/Documentation/ABI/testing/configfs-usb-gadget-uac1_legacy
@@ -0,0 +1,12 @@
+What: /config/usb-gadget/gadget/functions/uac1_legacy.name
+Date: Sep 2014
+KernelVersion: 3.18
+Description:
+ The attributes:
+
+ audio_buf_size - audio buffer size
+ fn_cap - capture pcm device file name
+ fn_cntl - control device file name
+ fn_play - playback pcm device file name
+ req_buf_size - ISO OUT endpoint request buffer size
+ req_count - ISO OUT endpoint request count
diff --git a/Documentation/ABI/testing/ima_policy b/Documentation/ABI/testing/ima_policy
index bb0f9a135e21..e76432b9954d 100644
--- a/Documentation/ABI/testing/ima_policy
+++ b/Documentation/ABI/testing/ima_policy
@@ -34,9 +34,10 @@ Description:
fsuuid:= file system UUID (e.g 8bcbe394-4f13-4144-be8e-5aa9ea2ce2f6)
uid:= decimal value
euid:= decimal value
- fowner:=decimal value
+ fowner:= decimal value
lsm: are LSM specific
option: appraise_type:= [imasig]
+ pcr:= decimal value
default policy:
# PROC_SUPER_MAGIC
@@ -96,3 +97,8 @@ Description:
Smack:
measure subj_user=_ func=FILE_CHECK mask=MAY_READ
+
+ Example of measure rules using alternate PCRs:
+
+ measure func=KEXEC_KERNEL_CHECK pcr=4
+ measure func=KEXEC_INITRAMFS_CHECK pcr=5
diff --git a/Documentation/ABI/testing/ppc-memtrace b/Documentation/ABI/testing/ppc-memtrace
new file mode 100644
index 000000000000..2e8b93741270
--- /dev/null
+++ b/Documentation/ABI/testing/ppc-memtrace
@@ -0,0 +1,45 @@
+What: /sys/kernel/debug/powerpc/memtrace
+Date: Aug 2017
+KernelVersion: 4.14
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: This folder contains the relevant debugfs files for the
+ hardware trace macro to use. CONFIG_PPC64_HARDWARE_TRACING
+ must be set.
+
+What: /sys/kernel/debug/powerpc/memtrace/enable
+Date: Aug 2017
+KernelVersion: 4.14
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: Write an integer containing the size in bytes of the memory
+ you want removed from each NUMA node to this file - it must be
+ aligned to the memblock size. This amount of RAM will be removed
+ from the kernel mappings and the following debugfs files will be
+ created. This can only be successfully done once per boot. Once
+ memory is successfully removed from each node, the following
+ files are created.
+
+What: /sys/kernel/debug/powerpc/memtrace/<node-id>
+Date: Aug 2017
+KernelVersion: 4.14
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: This directory contains information about the removed memory
+ from the specific NUMA node.
+
+What: /sys/kernel/debug/powerpc/memtrace/<node-id>/size
+Date: Aug 2017
+KernelVersion: 4.14
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: This contains the size of the memory removed from the node.
+
+What: /sys/kernel/debug/powerpc/memtrace/<node-id>/start
+Date: Aug 2017
+KernelVersion: 4.14
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: This contains the start address of the removed memory.
+
+What: /sys/kernel/debug/powerpc/memtrace/<node-id>/trace
+Date: Aug 2017
+KernelVersion: 4.14
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: This is where the hardware trace macro will output the trace
+ it generates.
diff --git a/Documentation/ABI/testing/procfs-smaps_rollup b/Documentation/ABI/testing/procfs-smaps_rollup
new file mode 100644
index 000000000000..0a54ed0d63c9
--- /dev/null
+++ b/Documentation/ABI/testing/procfs-smaps_rollup
@@ -0,0 +1,31 @@
+What: /proc/pid/smaps_rollup
+Date: August 2017
+Contact: Daniel Colascione <dancol@google.com>
+Description:
+ This file provides pre-summed memory information for a
+ process. The format is identical to /proc/pid/smaps,
+ except instead of an entry for each VMA in a process,
+ smaps_rollup has a single entry (tagged "[rollup]")
+ for which each field is the sum of the corresponding
+ fields from all the maps in /proc/pid/smaps.
+ For more details, see the procfs man page.
+
+ Typical output looks like this:
+
+ 00100000-ff709000 ---p 00000000 00:00 0 [rollup]
+ Rss: 884 kB
+ Pss: 385 kB
+ Shared_Clean: 696 kB
+ Shared_Dirty: 0 kB
+ Private_Clean: 120 kB
+ Private_Dirty: 68 kB
+ Referenced: 884 kB
+ Anonymous: 68 kB
+ LazyFree: 0 kB
+ AnonHugePages: 0 kB
+ ShmemPmdMapped: 0 kB
+ Shared_Hugetlb: 0 kB
+ Private_Hugetlb: 0 kB
+ Swap: 0 kB
+ SwapPss: 0 kB
+ Locked: 385 kB
diff --git a/Documentation/ABI/testing/sysfs-block-zram b/Documentation/ABI/testing/sysfs-block-zram
index 451b6d882b2c..c1513c756af1 100644
--- a/Documentation/ABI/testing/sysfs-block-zram
+++ b/Documentation/ABI/testing/sysfs-block-zram
@@ -90,3 +90,11 @@ Description:
device's debugging info useful for kernel developers. Its
format is not documented intentionally and may change
anytime without any notice.
+
+What: /sys/block/zram<id>/backing_dev
+Date: June 2017
+Contact: Minchan Kim <minchan@kernel.org>
+Description:
+ The backing_dev file is read-write and set up backing
+ device for zram to write incompressible pages.
+ For using, user should enable CONFIG_ZRAM_WRITEBACK.
diff --git a/Documentation/ABI/testing/sysfs-bus-fsi b/Documentation/ABI/testing/sysfs-bus-fsi
new file mode 100644
index 000000000000..57c806350d6c
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-fsi
@@ -0,0 +1,38 @@
+What: /sys/bus/platform/devices/fsi-master/rescan
+Date: May 2017
+KernelVersion: 4.12
+Contact: cbostic@linux.vnet.ibm.com
+Description:
+ Initiates a FSI master scan for all connected slave devices
+ on its links.
+
+What: /sys/bus/platform/devices/fsi-master/break
+Date: May 2017
+KernelVersion: 4.12
+Contact: cbostic@linux.vnet.ibm.com
+Description:
+ Sends an FSI BREAK command on a master's communication
+ link to any connnected slaves. A BREAK resets connected
+ device's logic and preps it to receive further commands
+ from the master.
+
+What: /sys/bus/platform/devices/fsi-master/slave@00:00/term
+Date: May 2017
+KernelVersion: 4.12
+Contact: cbostic@linux.vnet.ibm.com
+Description:
+ Sends an FSI terminate command from the master to its
+ connected slave. A terminate resets the slave's state machines
+ that control access to the internally connected engines. In
+ addition the slave freezes its internal error register for
+ debugging purposes. This command is also needed to abort any
+ ongoing operation in case of an expired 'Master Time Out'
+ timer.
+
+What: /sys/bus/platform/devices/fsi-master/slave@00:00/raw
+Date: May 2017
+KernelVersion: 4.12
+Contact: cbostic@linux.vnet.ibm.com
+Description:
+ Provides a means of reading/writing a 32 bit value from/to a
+ specified FSI bus address.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 8c24d0892f61..7eead5f97e02 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -119,6 +119,15 @@ Description:
unique to allow association with event codes. Units after
application of scale and offset are milliamps.
+What: /sys/bus/iio/devices/iio:deviceX/in_powerY_raw
+KernelVersion: 4.5
+Contact: linux-iio@vger.kernel.org
+Description:
+ Raw (unscaled no bias removal etc.) power measurement from
+ channel Y. The number must always be specified and
+ unique to allow association with event codes. Units after
+ application of scale and offset are milliwatts.
+
What: /sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
KernelVersion: 3.2
Contact: linux-iio@vger.kernel.org
@@ -1425,6 +1434,17 @@ Description:
guarantees that the hardware fifo is flushed to the device
buffer.
+What: /sys/bus/iio/devices/iio:device*/buffer/hwfifo_timeout
+KernelVersion: 4.12
+Contact: linux-iio@vger.kernel.org
+Description:
+ A read/write property to provide capability to delay reporting of
+ samples till a timeout is reached. This allows host processors to
+ sleep, while the sensor is storing samples in its internal fifo.
+ The maximum timeout in seconds can be specified by setting
+ hwfifo_timeout.The current delay can be read by reading
+ hwfifo_timeout. A value of 0 means that there is no timeout.
+
What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark
KernelVersion: 4.2
Contact: linux-iio@vger.kernel.org
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-lptimer-stm32 b/Documentation/ABI/testing/sysfs-bus-iio-lptimer-stm32
new file mode 100644
index 000000000000..ad2cc63e4bf8
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-lptimer-stm32
@@ -0,0 +1,57 @@
+What: /sys/bus/iio/devices/iio:deviceX/in_count0_preset
+KernelVersion: 4.13
+Contact: fabrice.gasnier@st.com
+Description:
+ Reading returns the current preset value. Writing sets the
+ preset value. Encoder counts continuously from 0 to preset
+ value, depending on direction (up/down).
+
+What: /sys/bus/iio/devices/iio:deviceX/in_count_quadrature_mode_available
+KernelVersion: 4.13
+Contact: fabrice.gasnier@st.com
+Description:
+ Reading returns the list possible quadrature modes.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_count0_quadrature_mode
+KernelVersion: 4.13
+Contact: fabrice.gasnier@st.com
+Description:
+ Configure the device counter quadrature modes:
+ - non-quadrature:
+ Encoder IN1 input servers as the count input (up
+ direction).
+ - quadrature:
+ Encoder IN1 and IN2 inputs are mixed to get direction
+ and count.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_count_polarity_available
+KernelVersion: 4.13
+Contact: fabrice.gasnier@st.com
+Description:
+ Reading returns the list possible active edges.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_count0_polarity
+KernelVersion: 4.13
+Contact: fabrice.gasnier@st.com
+Description:
+ Configure the device encoder/counter active edge:
+ - rising-edge
+ - falling-edge
+ - both-edges
+
+ In non-quadrature mode, device counts up on active edge.
+ In quadrature mode, encoder counting scenarios are as follows:
+ ----------------------------------------------------------------
+ | Active | Level on | IN1 signal | IN2 signal |
+ | edge | opposite |------------------------------------------
+ | | signal | Rising | Falling | Rising | Falling |
+ ----------------------------------------------------------------
+ | Rising | High -> | Down | - | Up | - |
+ | edge | Low -> | Up | - | Down | - |
+ ----------------------------------------------------------------
+ | Falling | High -> | - | Up | - | Down |
+ | edge | Low -> | - | Down | - | Up |
+ ----------------------------------------------------------------
+ | Both | High -> | Down | Up | Up | Down |
+ | edges | Low -> | Up | Down | Down | Up |
+ ----------------------------------------------------------------
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-meas-spec b/Documentation/ABI/testing/sysfs-bus-iio-meas-spec
index 1a6265e92e2f..6d47e548eee5 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-meas-spec
+++ b/Documentation/ABI/testing/sysfs-bus-iio-meas-spec
@@ -5,4 +5,3 @@ Description:
Reading returns either '1' or '0'. '1' means that the
battery level supplied to sensor is below 2.25V.
This ABI is available for tsys02d, htu21, ms8607
- This ABI is available for htu21, ms8607
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 b/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32
index 230020e06677..161c147d3c40 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32
+++ b/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32
@@ -16,6 +16,54 @@ Description:
- "OC2REF" : OC2REF signal is used as trigger output.
- "OC3REF" : OC3REF signal is used as trigger output.
- "OC4REF" : OC4REF signal is used as trigger output.
+ Additional modes (on TRGO2 only):
+ - "OC5REF" : OC5REF signal is used as trigger output.
+ - "OC6REF" : OC6REF signal is used as trigger output.
+ - "compare_pulse_OC4REF":
+ OC4REF rising or falling edges generate pulses.
+ - "compare_pulse_OC6REF":
+ OC6REF rising or falling edges generate pulses.
+ - "compare_pulse_OC4REF_r_or_OC6REF_r":
+ OC4REF or OC6REF rising edges generate pulses.
+ - "compare_pulse_OC4REF_r_or_OC6REF_f":
+ OC4REF rising or OC6REF falling edges generate pulses.
+ - "compare_pulse_OC5REF_r_or_OC6REF_r":
+ OC5REF or OC6REF rising edges generate pulses.
+ - "compare_pulse_OC5REF_r_or_OC6REF_f":
+ OC5REF rising or OC6REF falling edges generate pulses.
+
+ +-----------+ +-------------+ +---------+
+ | Prescaler +-> | Counter | +-> | Master | TRGO(2)
+ +-----------+ +--+--------+-+ |-> | Control +-->
+ | | || +---------+
+ +--v--------+-+ OCxREF || +---------+
+ | Chx compare +----------> | Output | ChX
+ +-----------+-+ | | Control +-->
+ . | | +---------+
+ . | | .
+ +-----------v-+ OC6REF | .
+ | Ch6 compare +---------+>
+ +-------------+
+
+ Example with: "compare_pulse_OC4REF_r_or_OC6REF_r":
+
+ X
+ X X
+ X . . X
+ X . . X
+ X . . X
+ count X . . . . X
+ . . . .
+ . . . .
+ +---------------+
+ OC4REF | . . |
+ +-+ . . +-+
+ . +---+ .
+ OC6REF . | | .
+ +-------+ +-------+
+ +-+ +-+
+ TRGO2 | | | |
+ +-+ +---+ +---------+
What: /sys/bus/iio/devices/triggerX/master_mode
KernelVersion: 4.11
@@ -90,3 +138,18 @@ Description:
Counting is enabled on rising edge of the connected
trigger, and remains enabled for the duration of this
selected mode.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_count_trigger_mode_available
+KernelVersion: 4.13
+Contact: benjamin.gaignard@st.com
+Description:
+ Reading returns the list possible trigger modes.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_count0_trigger_mode
+KernelVersion: 4.13
+Contact: benjamin.gaignard@st.com
+Description:
+ Configure the device counter trigger mode
+ counting direction is set by in_count0_count_direction
+ attribute and the counter is clocked by the connected trigger
+ rising edges.
diff --git a/Documentation/ABI/testing/sysfs-bus-thunderbolt b/Documentation/ABI/testing/sysfs-bus-thunderbolt
new file mode 100644
index 000000000000..392bef5bd399
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-thunderbolt
@@ -0,0 +1,112 @@
+What: /sys/bus/thunderbolt/devices/.../domainX/security
+Date: Sep 2017
+KernelVersion: 4.13
+Contact: thunderbolt-software@lists.01.org
+Description: This attribute holds current Thunderbolt security level
+ set by the system BIOS. Possible values are:
+
+ none: All devices are automatically authorized
+ user: Devices are only authorized based on writing
+ appropriate value to the authorized attribute
+ secure: Require devices that support secure connect at
+ minimum. User needs to authorize each device.
+ dponly: Automatically tunnel Display port (and USB). No
+ PCIe tunnels are created.
+
+What: /sys/bus/thunderbolt/devices/.../authorized
+Date: Sep 2017
+KernelVersion: 4.13
+Contact: thunderbolt-software@lists.01.org
+Description: This attribute is used to authorize Thunderbolt devices
+ after they have been connected. If the device is not
+ authorized, no devices such as PCIe and Display port are
+ available to the system.
+
+ Contents of this attribute will be 0 when the device is not
+ yet authorized.
+
+ Possible values are supported:
+ 1: The device will be authorized and connected
+
+ When key attribute contains 32 byte hex string the possible
+ values are:
+ 1: The 32 byte hex string is added to the device NVM and
+ the device is authorized.
+ 2: Send a challenge based on the 32 byte hex string. If the
+ challenge response from device is valid, the device is
+ authorized. In case of failure errno will be ENOKEY if
+ the device did not contain a key at all, and
+ EKEYREJECTED if the challenge response did not match.
+
+What: /sys/bus/thunderbolt/devices/.../key
+Date: Sep 2017
+KernelVersion: 4.13
+Contact: thunderbolt-software@lists.01.org
+Description: When a devices supports Thunderbolt secure connect it will
+ have this attribute. Writing 32 byte hex string changes
+ authorization to use the secure connection method instead.
+ Writing an empty string clears the key and regular connection
+ method can be used again.
+
+What: /sys/bus/thunderbolt/devices/.../device
+Date: Sep 2017
+KernelVersion: 4.13
+Contact: thunderbolt-software@lists.01.org
+Description: This attribute contains id of this device extracted from
+ the device DROM.
+
+What: /sys/bus/thunderbolt/devices/.../device_name
+Date: Sep 2017
+KernelVersion: 4.13
+Contact: thunderbolt-software@lists.01.org
+Description: This attribute contains name of this device extracted from
+ the device DROM.
+
+What: /sys/bus/thunderbolt/devices/.../vendor
+Date: Sep 2017
+KernelVersion: 4.13
+Contact: thunderbolt-software@lists.01.org
+Description: This attribute contains vendor id of this device extracted
+ from the device DROM.
+
+What: /sys/bus/thunderbolt/devices/.../vendor_name
+Date: Sep 2017
+KernelVersion: 4.13
+Contact: thunderbolt-software@lists.01.org
+Description: This attribute contains vendor name of this device extracted
+ from the device DROM.
+
+What: /sys/bus/thunderbolt/devices/.../unique_id
+Date: Sep 2017
+KernelVersion: 4.13
+Contact: thunderbolt-software@lists.01.org
+Description: This attribute contains unique_id string of this device.
+ This is either read from hardware registers (UUID on
+ newer hardware) or based on UID from the device DROM.
+ Can be used to uniquely identify particular device.
+
+What: /sys/bus/thunderbolt/devices/.../nvm_version
+Date: Sep 2017
+KernelVersion: 4.13
+Contact: thunderbolt-software@lists.01.org
+Description: If the device has upgradeable firmware the version
+ number is available here. Format: %x.%x, major.minor.
+ If the device is in safe mode reading the file returns
+ -ENODATA instead as the NVM version is not available.
+
+What: /sys/bus/thunderbolt/devices/.../nvm_authenticate
+Date: Sep 2017
+KernelVersion: 4.13
+Contact: thunderbolt-software@lists.01.org
+Description: When new NVM image is written to the non-active NVM
+ area (through non_activeX NVMem device), the
+ authentication procedure is started by writing 1 to
+ this file. If everything goes well, the device is
+ restarted with the new NVM firmware. If the image
+ verification fails an error code is returned instead.
+
+ When read holds status of the last authentication
+ operation if an error occurred during the process. This
+ is directly the status value from the DMA configuration
+ based mailbox before the device is power cycled. Writing
+ 0 here clears the status.
diff --git a/Documentation/ABI/testing/sysfs-bus-usb-lvstest b/Documentation/ABI/testing/sysfs-bus-usb-lvstest
index 5151290cf8e7..ee0046dc4192 100644
--- a/Documentation/ABI/testing/sysfs-bus-usb-lvstest
+++ b/Documentation/ABI/testing/sysfs-bus-usb-lvstest
@@ -45,3 +45,16 @@ Contact: Pratyush Anand <pratyush.anand@gmail.com>
Description:
Write to this node to issue "U3 exit" for Link Layer
Validation device. It is needed for TD.7.36.
+
+What: /sys/bus/usb/devices/.../enable_compliance
+Date: July 2017
+Description:
+ Write to this node to set the port to compliance mode to test
+ with Link Layer Validation device. It is needed for TD.7.34.
+
+What: /sys/bus/usb/devices/.../warm_reset
+Date: July 2017
+Description:
+ Write to this node to issue "Warm Reset" for Link Layer Validation
+ device. It may be needed to properly reset an xHCI 1.1 host port if
+ compliance mode needed to be explicitly enabled.
diff --git a/Documentation/ABI/testing/sysfs-class-mtd b/Documentation/ABI/testing/sysfs-class-mtd
index 3b5c3bca9186..f34e592301d1 100644
--- a/Documentation/ABI/testing/sysfs-class-mtd
+++ b/Documentation/ABI/testing/sysfs-class-mtd
@@ -229,6 +229,6 @@ KernelVersion: 4.1
Contact: linux-mtd@lists.infradead.org
Description:
For a partition, the offset of that partition from the start
- of the master device in bytes. This attribute is absent on
- main devices, so it can be used to distinguish between
- partitions and devices that aren't partitions.
+ of the parent (another partition or a flash device) in bytes.
+ This attribute is absent on flash devices, so it can be used
+ to distinguish them from partitions.
diff --git a/Documentation/ABI/testing/sysfs-class-mux b/Documentation/ABI/testing/sysfs-class-mux
new file mode 100644
index 000000000000..8715f9c7bd4f
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-mux
@@ -0,0 +1,16 @@
+What: /sys/class/mux/
+Date: April 2017
+KernelVersion: 4.13
+Contact: Peter Rosin <peda@axentia.se>
+Description:
+ The mux/ class sub-directory belongs to the Generic MUX
+ Framework and provides a sysfs interface for using MUX
+ controllers.
+
+What: /sys/class/mux/muxchipN/
+Date: April 2017
+KernelVersion: 4.13
+Contact: Peter Rosin <peda@axentia.se>
+Description:
+ A /sys/class/mux/muxchipN directory is created for each
+ probed MUX chip where N is a simple enumeration.
diff --git a/Documentation/ABI/testing/sysfs-class-net b/Documentation/ABI/testing/sysfs-class-net
index 668604fc8e06..6856da99b6f7 100644
--- a/Documentation/ABI/testing/sysfs-class-net
+++ b/Documentation/ABI/testing/sysfs-class-net
@@ -251,3 +251,11 @@ Contact: netdev@vger.kernel.org
Description:
Indicates the unique physical switch identifier of a switch this
port belongs to, as a string.
+
+What: /sys/class/net/<iface>/phydev
+Date: May 2017
+KernelVersion: 4.13
+Contact: netdev@vger.kernel.org
+Description:
+ Symbolic link to the PHY device this network device is attached
+ to.
diff --git a/Documentation/ABI/testing/sysfs-class-net-phydev b/Documentation/ABI/testing/sysfs-class-net-phydev
new file mode 100644
index 000000000000..6ebabfb27912
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-net-phydev
@@ -0,0 +1,36 @@
+What: /sys/class/mdio_bus/<bus>/<device>/attached_dev
+Date: May 2017
+KernelVersion: 4.13
+Contact: netdev@vger.kernel.org
+Description:
+ Symbolic link to the network device this PHY device is
+ attached to.
+
+What: /sys/class/mdio_bus/<bus>/<device>/phy_has_fixups
+Date: February 2014
+KernelVersion: 3.15
+Contact: netdev@vger.kernel.org
+Description:
+ Boolean value indicating whether the PHY device has
+ any fixups registered against it (phy_register_fixup)
+
+What: /sys/class/mdio_bus/<bus>/<device>/phy_id
+Date: November 2012
+KernelVersion: 3.8
+Contact: netdev@vger.kernel.org
+Description:
+ 32-bit hexadecimal value corresponding to the PHY device's OUI,
+ model and revision number.
+
+What: /sys/class/mdio_bus/<bus>/<device>/phy_interface
+Date: February 2014
+KernelVersion: 3.15
+Contact: netdev@vger.kernel.org
+Description:
+ String value indicating the PHY interface, possible
+ values are:.
+ <empty> (not available), mii, gmii, sgmii, tbi, rev-mii,
+ rmii, rgmii, rgmii-id, rgmii-rxid, rgmii-txid, rtbi, smii
+ xgmii, moca, qsgmii, trgmii, 1000base-x, 2500base-x, rxaui,
+ xaui, 10gbase-kr, unknown
+
diff --git a/Documentation/ABI/testing/sysfs-class-power-twl4030 b/Documentation/ABI/testing/sysfs-class-power-twl4030
index be26af0f1895..b4fd32d210c5 100644
--- a/Documentation/ABI/testing/sysfs-class-power-twl4030
+++ b/Documentation/ABI/testing/sysfs-class-power-twl4030
@@ -1,20 +1,3 @@
-What: /sys/class/power_supply/twl4030_ac/max_current
- /sys/class/power_supply/twl4030_usb/max_current
-Description:
- Read/Write limit on current which may
- be drawn from the ac (Accessory Charger) or
- USB port.
-
- Value is in micro-Amps.
-
- Value is set automatically to an appropriate
- value when a cable is plugged or unplugged.
-
- Value can the set by writing to the attribute.
- The change will only persist until the next
- plug event. These event are reported via udev.
-
-
What: /sys/class/power_supply/twl4030_usb/mode
Description:
Changing mode for USB port.
diff --git a/Documentation/ABI/testing/sysfs-class-typec b/Documentation/ABI/testing/sysfs-class-typec
index d4a3d23eb09c..5be552e255e9 100644
--- a/Documentation/ABI/testing/sysfs-class-typec
+++ b/Documentation/ABI/testing/sysfs-class-typec
@@ -30,6 +30,21 @@ Description:
Valid values: source, sink
+What: /sys/class/typec/<port>/port_type
+Date: May 2017
+Contact: Badhri Jagan Sridharan <Badhri@google.com>
+Description:
+ Indicates the type of the port. This attribute can be used for
+ requesting a change in the port type. Port type change is
+ supported as a synchronous operation, so write(2) to the
+ attribute will not return until the operation has finished.
+
+ Valid values:
+ - source (The port will behave as source only DFP port)
+ - sink (The port will behave as sink only UFP port)
+ - dual (The port will behave as dual-role-data and
+ dual-role-power port)
+
What: /sys/class/typec/<port>/vconn_source
Date: April 2017
Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
diff --git a/Documentation/ABI/testing/sysfs-driver-altera-cvp b/Documentation/ABI/testing/sysfs-driver-altera-cvp
new file mode 100644
index 000000000000..8cde64a71edb
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-altera-cvp
@@ -0,0 +1,8 @@
+What: /sys/bus/pci/drivers/altera-cvp/chkcfg
+Date: May 2017
+Kernel Version: 4.13
+Contact: Anatolij Gustschin <agust@denx.de>
+Description:
+ Contains either 1 or 0 and controls if configuration
+ error checking in altera-cvp driver is turned on or
+ off.
diff --git a/Documentation/ABI/testing/sysfs-firmware-ofw b/Documentation/ABI/testing/sysfs-firmware-ofw
index f562b188e71d..edcab3ccfcc0 100644
--- a/Documentation/ABI/testing/sysfs-firmware-ofw
+++ b/Documentation/ABI/testing/sysfs-firmware-ofw
@@ -1,6 +1,6 @@
What: /sys/firmware/devicetree/*
Date: November 2013
-Contact: Grant Likely <grant.likely@linaro.org>
+Contact: Grant Likely <grant.likely@arm.com>, devicetree@vger.kernel.org
Description:
When using OpenFirmware or a Flattened Device Tree to enumerate
hardware, the device tree structure will be exposed in this
@@ -26,3 +26,27 @@ Description:
name plus address). Properties are represented as files
in the directory. The contents of each file is the exact
binary data from the device tree.
+
+What: /sys/firmware/fdt
+Date: February 2015
+KernelVersion: 3.19
+Contact: Frank Rowand <frowand.list@gmail.com>, devicetree@vger.kernel.org
+Description:
+ Exports the FDT blob that was passed to the kernel by
+ the bootloader. This allows userland applications such
+ as kexec to access the raw binary. This blob is also
+ useful when debugging since it contains any changes
+ made to the blob by the bootloader.
+
+ The fact that this node does not reside under
+ /sys/firmware/device-tree is deliberate: FDT is also used
+ on arm64 UEFI/ACPI systems to communicate just the UEFI
+ and ACPI entry points, but the FDT is never unflattened
+ and used to configure the system.
+
+ A CRC32 checksum is calculated over the entire FDT
+ blob, and verified at late_initcall time. The sysfs
+ entry is instantiated only if the checksum is valid,
+ i.e., if the FDT blob has not been modified in the mean
+ time. Otherwise, a warning is printed.
+Users: kexec, debugging
diff --git a/Documentation/ABI/testing/sysfs-firmware-opal-powercap b/Documentation/ABI/testing/sysfs-firmware-opal-powercap
new file mode 100644
index 000000000000..c9b66ec4f165
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-firmware-opal-powercap
@@ -0,0 +1,31 @@
+What: /sys/firmware/opal/powercap
+Date: August 2017
+Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Description: Powercap directory for Powernv (P8, P9) servers
+
+ Each folder in this directory contains a
+ power-cappable component.
+
+What: /sys/firmware/opal/powercap/system-powercap
+ /sys/firmware/opal/powercap/system-powercap/powercap-min
+ /sys/firmware/opal/powercap/system-powercap/powercap-max
+ /sys/firmware/opal/powercap/system-powercap/powercap-current
+Date: August 2017
+Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Description: System powercap directory and attributes applicable for
+ Powernv (P8, P9) servers
+
+ This directory provides powercap information. It
+ contains below sysfs attributes:
+
+ - powercap-min : This file provides the minimum
+ possible powercap in Watt units
+
+ - powercap-max : This file provides the maximum
+ possible powercap in Watt units
+
+ - powercap-current : This file provides the current
+ powercap set on the system. Writing to this file
+ creates a request for setting a new-powercap. The
+ powercap requested must be between powercap-min
+ and powercap-max.
diff --git a/Documentation/ABI/testing/sysfs-firmware-opal-psr b/Documentation/ABI/testing/sysfs-firmware-opal-psr
new file mode 100644
index 000000000000..cc2ece70e365
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-firmware-opal-psr
@@ -0,0 +1,18 @@
+What: /sys/firmware/opal/psr
+Date: August 2017
+Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Description: Power-Shift-Ratio directory for Powernv P9 servers
+
+ Power-Shift-Ratio allows to provide hints the firmware
+ to shift/throttle power between different entities in
+ the system. Each attribute in this directory indicates
+ a settable PSR.
+
+What: /sys/firmware/opal/psr/cpu_to_gpu_X
+Date: August 2017
+Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Description: PSR sysfs attributes for Powernv P9 servers
+
+ Power-Shift-Ratio between CPU and GPU for a given chip
+ with chip-id X. This file gives the ratio (0-100)
+ which is used by OCC for power-capping.
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index a809f6005f14..11b7f4ebea7c 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -57,6 +57,15 @@ Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com>
Description:
Controls the issue rate of small discard commands.
+What: /sys/fs/f2fs/<disk>/discard_granularity
+Date: July 2017
+Contact: "Chao Yu" <yuchao0@huawei.com>
+Description:
+ Controls discard granularity of inner discard thread, inner thread
+ will not issue discards with size that is smaller than granularity.
+ The unit size is one block, now only support configuring in range
+ of [1, 512].
+
What: /sys/fs/f2fs/<disk>/max_victim_search
Date: January 2014
Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com>
@@ -75,7 +84,7 @@ Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com>
Description:
Controls the memory footprint used by f2fs.
-What: /sys/fs/f2fs/<disk>/trim_sections
+What: /sys/fs/f2fs/<disk>/batched_trim_sections
Date: February 2015
Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
Description:
@@ -112,3 +121,33 @@ Date: January 2016
Contact: "Shuoran Liu" <liushuoran@huawei.com>
Description:
Shows total written kbytes issued to disk.
+
+What: /sys/fs/f2fs/<disk>/inject_rate
+Date: May 2016
+Contact: "Sheng Yong" <shengyong1@huawei.com>
+Description:
+ Controls the injection rate.
+
+What: /sys/fs/f2fs/<disk>/inject_type
+Date: May 2016
+Contact: "Sheng Yong" <shengyong1@huawei.com>
+Description:
+ Controls the injection type.
+
+What: /sys/fs/f2fs/<disk>/reserved_blocks
+Date: June 2017
+Contact: "Chao Yu" <yuchao0@huawei.com>
+Description:
+ Controls current reserved blocks in system.
+
+What: /sys/fs/f2fs/<disk>/gc_urgent
+Date: August 2017
+Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
+Description:
+ Do background GC agressively
+
+What: /sys/fs/f2fs/<disk>/gc_urgent_sleep_time
+Date: August 2017
+Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
+Description:
+ Controls sleep time of GC urgent mode
diff --git a/Documentation/ABI/testing/sysfs-hypervisor-pmu b/Documentation/ABI/testing/sysfs-hypervisor-pmu
deleted file mode 100644
index 224faa105e18..000000000000
--- a/Documentation/ABI/testing/sysfs-hypervisor-pmu
+++ /dev/null
@@ -1,23 +0,0 @@
-What: /sys/hypervisor/pmu/pmu_mode
-Date: August 2015
-KernelVersion: 4.3
-Contact: Boris Ostrovsky <boris.ostrovsky@oracle.com>
-Description:
- Describes mode that Xen's performance-monitoring unit (PMU)
- uses. Accepted values are
- "off" -- PMU is disabled
- "self" -- The guest can profile itself
- "hv" -- The guest can profile itself and, if it is
- privileged (e.g. dom0), the hypervisor
- "all" -- The guest can profile itself, the hypervisor
- and all other guests. Only available to
- privileged guests.
-
-What: /sys/hypervisor/pmu/pmu_features
-Date: August 2015
-KernelVersion: 4.3
-Contact: Boris Ostrovsky <boris.ostrovsky@oracle.com>
-Description:
- Describes Xen PMU features (as an integer). A set bit indicates
- that the corresponding feature is enabled. See
- include/xen/interface/xenpmu.h for available features
diff --git a/Documentation/ABI/testing/sysfs-hypervisor-xen b/Documentation/ABI/testing/sysfs-hypervisor-xen
new file mode 100644
index 000000000000..53b7b2ea7515
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-hypervisor-xen
@@ -0,0 +1,43 @@
+What: /sys/hypervisor/guest_type
+Date: June 2017
+KernelVersion: 4.13
+Contact: xen-devel@lists.xenproject.org
+Description: If running under Xen:
+ Type of guest:
+ "Xen": standard guest type on arm
+ "HVM": fully virtualized guest (x86)
+ "PV": paravirtualized guest (x86)
+ "PVH": fully virtualized guest without legacy emulation (x86)
+
+What: /sys/hypervisor/pmu/pmu_mode
+Date: August 2015
+KernelVersion: 4.3
+Contact: Boris Ostrovsky <boris.ostrovsky@oracle.com>
+Description: If running under Xen:
+ Describes mode that Xen's performance-monitoring unit (PMU)
+ uses. Accepted values are
+ "off" -- PMU is disabled
+ "self" -- The guest can profile itself
+ "hv" -- The guest can profile itself and, if it is
+ privileged (e.g. dom0), the hypervisor
+ "all" -- The guest can profile itself, the hypervisor
+ and all other guests. Only available to
+ privileged guests.
+
+What: /sys/hypervisor/pmu/pmu_features
+Date: August 2015
+KernelVersion: 4.3
+Contact: Boris Ostrovsky <boris.ostrovsky@oracle.com>
+Description: If running under Xen:
+ Describes Xen PMU features (as an integer). A set bit indicates
+ that the corresponding feature is enabled. See
+ include/xen/interface/xenpmu.h for available features
+
+What: /sys/hypervisor/properties/buildid
+Date: June 2017
+KernelVersion: 4.13
+Contact: xen-devel@lists.xenproject.org
+Description: If running under Xen:
+ Build id of the hypervisor, needed for hypervisor live patching.
+ Might return "<denied>" in case of special security settings
+ in the hypervisor.
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-swap b/Documentation/ABI/testing/sysfs-kernel-mm-swap
new file mode 100644
index 000000000000..94672016c268
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-swap
@@ -0,0 +1,16 @@
+What: /sys/kernel/mm/swap/
+Date: August 2017
+Contact: Linux memory management mailing list <linux-mm@kvack.org>
+Description: Interface for swapping
+
+What: /sys/kernel/mm/swap/vma_ra_enabled
+Date: August 2017
+Contact: Linux memory management mailing list <linux-mm@kvack.org>
+Description: Enable/disable VMA based swap readahead.
+
+ If set to true, the VMA based swap readahead algorithm
+ will be used for swappable anonymous pages mapped in a
+ VMA, and the global swap readahead algorithm will be
+ still used for tmpfs etc. other users. If set to
+ false, the global swap readahead algorithm will be
+ used for all swappable pages.
diff --git a/Documentation/ABI/testing/sysfs-platform-ideapad-laptop b/Documentation/ABI/testing/sysfs-platform-ideapad-laptop
index b31e782bd985..597a2f3d1efc 100644
--- a/Documentation/ABI/testing/sysfs-platform-ideapad-laptop
+++ b/Documentation/ABI/testing/sysfs-platform-ideapad-laptop
@@ -17,3 +17,11 @@ Description:
* 2 -> Dust Cleaning
* 4 -> Efficient Thermal Dissipation Mode
+What: /sys/devices/platform/ideapad/touchpad
+Date: May 2017
+KernelVersion: 4.13
+Contact: "Ritesh Raj Sarraf <rrs@debian.org>"
+Description:
+ Control touchpad mode.
+ * 1 -> Switched On
+ * 0 -> Switched Off
diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power
index f523e5a3ac33..a1d1612f3651 100644
--- a/Documentation/ABI/testing/sysfs-power
+++ b/Documentation/ABI/testing/sysfs-power
@@ -127,7 +127,7 @@ Description:
What; /sys/power/pm_trace_dev_match
Date: October 2010
-Contact: James Hogan <james@albanarts.com>
+Contact: James Hogan <jhogan@kernel.org>
Description:
The /sys/power/pm_trace_dev_match file contains the name of the
device associated with the last PM event point saved in the RTC
@@ -273,3 +273,15 @@ Description:
This output is useful for system wakeup diagnostics of spurious
wakeup interrupts.
+
+What: /sys/power/pm_debug_messages
+Date: July 2017
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
+Description:
+ The /sys/power/pm_debug_messages file controls the printing
+ of debug messages from the system suspend/hiberbation
+ infrastructure to the kernel log.
+
+ Writing a "1" to this file enables the debug messages and
+ writing a "0" (default) to it disables them. Reads from
+ this file return the current value.
diff --git a/Documentation/ABI/testing/sysfs-uevent b/Documentation/ABI/testing/sysfs-uevent
new file mode 100644
index 000000000000..aa39f8d7bcdf
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-uevent
@@ -0,0 +1,47 @@
+What: /sys/.../uevent
+Date: May 2017
+KernelVersion: 4.13
+Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
+Description:
+ Enable passing additional variables for synthetic uevents that
+ are generated by writing /sys/.../uevent file.
+
+ Recognized extended format is ACTION [UUID [KEY=VALUE ...].
+
+ The ACTION is compulsory - it is the name of the uevent action
+ ("add", "change", "remove"). There is no change compared to
+ previous functionality here. The rest of the extended format
+ is optional.
+
+ You need to pass UUID first before any KEY=VALUE pairs.
+ The UUID must be in "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+ format where 'x' is a hex digit. The UUID is considered to be
+ a transaction identifier so it's possible to use the same UUID
+ value for one or more synthetic uevents in which case we
+ logically group these uevents together for any userspace
+ listeners. The UUID value appears in uevent as
+ "SYNTH_UUID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" environment
+ variable.
+
+ If UUID is not passed in, the generated synthetic uevent gains
+ "SYNTH_UUID=0" environment variable automatically.
+
+ The KEY=VALUE pairs can contain alphanumeric characters only.
+ It's possible to define zero or more pairs - each pair is then
+ delimited by a space character ' '. Each pair appears in
+ synthetic uevent as "SYNTH_ARG_KEY=VALUE". That means the KEY
+ name gains "SYNTH_ARG_" prefix to avoid possible collisions
+ with existing variables.
+
+ Example of valid sequence written to the uevent file:
+
+ add fe4d7c9d-b8c6-4a70-9ef1-3d8a58d18eed A=1 B=abc
+
+ This generates synthetic uevent including these variables:
+
+ ACTION=add
+ SYNTH_ARG_A=1
+ SYNTH_ARG_B=abc
+ SYNTH_UUID=fe4d7c9d-b8c6-4a70-9ef1-3d8a58d18eed
+Users:
+ udev, userspace tools generating synthetic uevents
diff --git a/Documentation/DMA-API-HOWTO.txt b/Documentation/DMA-API-HOWTO.txt
index 979228bc9035..f0cc3f772265 100644
--- a/Documentation/DMA-API-HOWTO.txt
+++ b/Documentation/DMA-API-HOWTO.txt
@@ -1,22 +1,24 @@
- Dynamic DMA mapping Guide
- =========================
+=========================
+Dynamic DMA mapping Guide
+=========================
- David S. Miller <davem@redhat.com>
- Richard Henderson <rth@cygnus.com>
- Jakub Jelinek <jakub@redhat.com>
+:Author: David S. Miller <davem@redhat.com>
+:Author: Richard Henderson <rth@cygnus.com>
+:Author: Jakub Jelinek <jakub@redhat.com>
This is a guide to device driver writers on how to use the DMA API
with example pseudo-code. For a concise description of the API, see
DMA-API.txt.
- CPU and DMA addresses
+CPU and DMA addresses
+=====================
There are several kinds of addresses involved in the DMA API, and it's
important to understand the differences.
The kernel normally uses virtual addresses. Any address returned by
kmalloc(), vmalloc(), and similar interfaces is a virtual address and can
-be stored in a "void *".
+be stored in a ``void *``.
The virtual memory system (TLB, page tables, etc.) translates virtual
addresses to CPU physical addresses, which are stored as "phys_addr_t" or
@@ -37,7 +39,7 @@ be restricted to a subset of that space. For example, even if a system
supports 64-bit addresses for main memory and PCI BARs, it may use an IOMMU
so devices only need to use 32-bit DMA addresses.
-Here's a picture and some examples:
+Here's a picture and some examples::
CPU CPU Bus
Virtual Physical Address
@@ -98,15 +100,16 @@ microprocessor architecture. You should use the DMA API rather than the
bus-specific DMA API, i.e., use the dma_map_*() interfaces rather than the
pci_map_*() interfaces.
-First of all, you should make sure
+First of all, you should make sure::
-#include <linux/dma-mapping.h>
+ #include <linux/dma-mapping.h>
is in your driver, which provides the definition of dma_addr_t. This type
can hold any valid DMA address for the platform and should be used
everywhere you hold a DMA address returned from the DMA mapping functions.
- What memory is DMA'able?
+What memory is DMA'able?
+========================
The first piece of information you must know is what kernel memory can
be used with the DMA mapping facilities. There has been an unwritten
@@ -143,7 +146,8 @@ What about block I/O and networking buffers? The block I/O and
networking subsystems make sure that the buffers they use are valid
for you to DMA from/to.
- DMA addressing limitations
+DMA addressing limitations
+==========================
Does your device have any DMA addressing limitations? For example, is
your device only capable of driving the low order 24-bits of address?
@@ -166,7 +170,7 @@ style to do this even if your device holds the default setting,
because this shows that you did think about these issues wrt. your
device.
-The query is performed via a call to dma_set_mask_and_coherent():
+The query is performed via a call to dma_set_mask_and_coherent()::
int dma_set_mask_and_coherent(struct device *dev, u64 mask);
@@ -175,12 +179,12 @@ If you have some special requirements, then the following two separate
queries can be used instead:
The query for streaming mappings is performed via a call to
- dma_set_mask():
+ dma_set_mask()::
int dma_set_mask(struct device *dev, u64 mask);
The query for consistent allocations is performed via a call
- to dma_set_coherent_mask():
+ to dma_set_coherent_mask()::
int dma_set_coherent_mask(struct device *dev, u64 mask);
@@ -209,7 +213,7 @@ of your driver reports that performance is bad or that the device is not
even detected, you can ask them for the kernel messages to find out
exactly why.
-The standard 32-bit addressing device would do something like this:
+The standard 32-bit addressing device would do something like this::
if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))) {
dev_warn(dev, "mydev: No suitable DMA available\n");
@@ -225,7 +229,7 @@ than 64-bit addressing. For example, Sparc64 PCI SAC addressing is
more efficient than DAC addressing.
Here is how you would handle a 64-bit capable device which can drive
-all 64-bits when accessing streaming DMA:
+all 64-bits when accessing streaming DMA::
int using_dac;
@@ -239,7 +243,7 @@ all 64-bits when accessing streaming DMA:
}
If a card is capable of using 64-bit consistent allocations as well,
-the case would look like this:
+the case would look like this::
int using_dac, consistent_using_dac;
@@ -260,7 +264,7 @@ uses consistent allocations, one would have to check the return value from
dma_set_coherent_mask().
Finally, if your device can only drive the low 24-bits of
-address you might do something like:
+address you might do something like::
if (dma_set_mask(dev, DMA_BIT_MASK(24))) {
dev_warn(dev, "mydev: 24-bit DMA addressing not available\n");
@@ -280,7 +284,7 @@ only provide the functionality which the machine can handle. It
is important that the last call to dma_set_mask() be for the
most specific mask.
-Here is pseudo-code showing how this might be done:
+Here is pseudo-code showing how this might be done::
#define PLAYBACK_ADDRESS_BITS DMA_BIT_MASK(32)
#define RECORD_ADDRESS_BITS DMA_BIT_MASK(24)
@@ -308,7 +312,8 @@ A sound card was used as an example here because this genre of PCI
devices seems to be littered with ISA chips given a PCI front end,
and thus retaining the 16MB DMA addressing limitations of ISA.
- Types of DMA mappings
+Types of DMA mappings
+=====================
There are two types of DMA mappings:
@@ -336,12 +341,14 @@ There are two types of DMA mappings:
to memory is immediately visible to the device, and vice
versa. Consistent mappings guarantee this.
- IMPORTANT: Consistent DMA memory does not preclude the usage of
- proper memory barriers. The CPU may reorder stores to
+ .. important::
+
+ Consistent DMA memory does not preclude the usage of
+ proper memory barriers. The CPU may reorder stores to
consistent memory just as it may normal memory. Example:
if it is important for the device to see the first word
of a descriptor updated before the second, you must do
- something like:
+ something like::
desc->word0 = address;
wmb();
@@ -377,16 +384,17 @@ Also, systems with caches that aren't DMA-coherent will work better
when the underlying buffers don't share cache lines with other data.
- Using Consistent DMA mappings.
+Using Consistent DMA mappings
+=============================
To allocate and map large (PAGE_SIZE or so) consistent DMA regions,
-you should do:
+you should do::
dma_addr_t dma_handle;
cpu_addr = dma_alloc_coherent(dev, size, &dma_handle, gfp);
-where device is a struct device *. This may be called in interrupt
+where device is a ``struct device *``. This may be called in interrupt
context with the GFP_ATOMIC flag.
Size is the length of the region you want to allocate, in bytes.
@@ -415,7 +423,7 @@ exists (for example) to guarantee that if you allocate a chunk
which is smaller than or equal to 64 kilobytes, the extent of the
buffer you receive will not cross a 64K boundary.
-To unmap and free such a DMA region, you call:
+To unmap and free such a DMA region, you call::
dma_free_coherent(dev, size, cpu_addr, dma_handle);
@@ -430,7 +438,7 @@ a kmem_cache, but it uses dma_alloc_coherent(), not __get_free_pages().
Also, it understands common hardware constraints for alignment,
like queue heads needing to be aligned on N byte boundaries.
-Create a dma_pool like this:
+Create a dma_pool like this::
struct dma_pool *pool;
@@ -444,7 +452,7 @@ pass 0 for boundary; passing 4096 says memory allocated from this pool
must not cross 4KByte boundaries (but at that time it may be better to
use dma_alloc_coherent() directly instead).
-Allocate memory from a DMA pool like this:
+Allocate memory from a DMA pool like this::
cpu_addr = dma_pool_alloc(pool, flags, &dma_handle);
@@ -452,7 +460,7 @@ flags are GFP_KERNEL if blocking is permitted (not in_interrupt nor
holding SMP locks), GFP_ATOMIC otherwise. Like dma_alloc_coherent(),
this returns two values, cpu_addr and dma_handle.
-Free memory that was allocated from a dma_pool like this:
+Free memory that was allocated from a dma_pool like this::
dma_pool_free(pool, cpu_addr, dma_handle);
@@ -460,7 +468,7 @@ where pool is what you passed to dma_pool_alloc(), and cpu_addr and
dma_handle are the values dma_pool_alloc() returned. This function
may be called in interrupt context.
-Destroy a dma_pool by calling:
+Destroy a dma_pool by calling::
dma_pool_destroy(pool);
@@ -468,11 +476,12 @@ Make sure you've called dma_pool_free() for all memory allocated
from a pool before you destroy the pool. This function may not
be called in interrupt context.
- DMA Direction
+DMA Direction
+=============
The interfaces described in subsequent portions of this document
take a DMA direction argument, which is an integer and takes on
-one of the following values:
+one of the following values::
DMA_BIDIRECTIONAL
DMA_TO_DEVICE
@@ -521,14 +530,15 @@ packets, map/unmap them with the DMA_TO_DEVICE direction
specifier. For receive packets, just the opposite, map/unmap them
with the DMA_FROM_DEVICE direction specifier.
- Using Streaming DMA mappings
+Using Streaming DMA mappings
+============================
The streaming DMA mapping routines can be called from interrupt
context. There are two versions of each map/unmap, one which will
map/unmap a single memory region, and one which will map/unmap a
scatterlist.
-To map a single region, you do:
+To map a single region, you do::
struct device *dev = &my_dev->dev;
dma_addr_t dma_handle;
@@ -545,37 +555,16 @@ To map a single region, you do:
goto map_error_handling;
}
-and to unmap it:
+and to unmap it::
dma_unmap_single(dev, dma_handle, size, direction);
You should call dma_mapping_error() as dma_map_single() could fail and return
-error. Not all DMA implementations support the dma_mapping_error() interface.
-However, it is a good practice to call dma_mapping_error() interface, which
-will invoke the generic mapping error check interface. Doing so will ensure
-that the mapping code will work correctly on all DMA implementations without
-any dependency on the specifics of the underlying implementation. Using the
-returned address without checking for errors could result in failures ranging
-from panics to silent data corruption. A couple of examples of incorrect ways
-to check for errors that make assumptions about the underlying DMA
-implementation are as follows and these are applicable to dma_map_page() as
-well.
-
-Incorrect example 1:
- dma_addr_t dma_handle;
-
- dma_handle = dma_map_single(dev, addr, size, direction);
- if ((dma_handle & 0xffff != 0) || (dma_handle >= 0x1000000)) {
- goto map_error;
- }
-
-Incorrect example 2:
- dma_addr_t dma_handle;
-
- dma_handle = dma_map_single(dev, addr, size, direction);
- if (dma_handle == DMA_ERROR_CODE) {
- goto map_error;
- }
+error. Doing so will ensure that the mapping code will work correctly on all
+DMA implementations without any dependency on the specifics of the underlying
+implementation. Using the returned address without checking for errors could
+result in failures ranging from panics to silent data corruption. The same
+applies to dma_map_page() as well.
You should call dma_unmap_single() when the DMA activity is finished, e.g.,
from the interrupt which told you that the DMA transfer is done.
@@ -584,7 +573,7 @@ Using CPU pointers like this for single mappings has a disadvantage:
you cannot reference HIGHMEM memory in this way. Thus, there is a
map/unmap interface pair akin to dma_{map,unmap}_single(). These
interfaces deal with page/offset pairs instead of CPU pointers.
-Specifically:
+Specifically::
struct device *dev = &my_dev->dev;
dma_addr_t dma_handle;
@@ -614,7 +603,7 @@ error as outlined under the dma_map_single() discussion.
You should call dma_unmap_page() when the DMA activity is finished, e.g.,
from the interrupt which told you that the DMA transfer is done.
-With scatterlists, you map a region gathered from several regions by:
+With scatterlists, you map a region gathered from several regions by::
int i, count = dma_map_sg(dev, sglist, nents, direction);
struct scatterlist *sg;
@@ -638,16 +627,18 @@ Then you should loop count times (note: this can be less than nents times)
and use sg_dma_address() and sg_dma_len() macros where you previously
accessed sg->address and sg->length as shown above.
-To unmap a scatterlist, just call:
+To unmap a scatterlist, just call::
dma_unmap_sg(dev, sglist, nents, direction);
Again, make sure DMA activity has already finished.
-PLEASE NOTE: The 'nents' argument to the dma_unmap_sg call must be
- the _same_ one you passed into the dma_map_sg call,
- it should _NOT_ be the 'count' value _returned_ from the
- dma_map_sg call.
+.. note::
+
+ The 'nents' argument to the dma_unmap_sg call must be
+ the _same_ one you passed into the dma_map_sg call,
+ it should _NOT_ be the 'count' value _returned_ from the
+ dma_map_sg call.
Every dma_map_{single,sg}() call should have its dma_unmap_{single,sg}()
counterpart, because the DMA address space is a shared resource and
@@ -659,11 +650,11 @@ properly in order for the CPU and device to see the most up-to-date and
correct copy of the DMA buffer.
So, firstly, just map it with dma_map_{single,sg}(), and after each DMA
-transfer call either:
+transfer call either::
dma_sync_single_for_cpu(dev, dma_handle, size, direction);
-or:
+or::
dma_sync_sg_for_cpu(dev, sglist, nents, direction);
@@ -671,17 +662,19 @@ as appropriate.
Then, if you wish to let the device get at the DMA area again,
finish accessing the data with the CPU, and then before actually
-giving the buffer to the hardware call either:
+giving the buffer to the hardware call either::
dma_sync_single_for_device(dev, dma_handle, size, direction);
-or:
+or::
dma_sync_sg_for_device(dev, sglist, nents, direction);
as appropriate.
-PLEASE NOTE: The 'nents' argument to dma_sync_sg_for_cpu() and
+.. note::
+
+ The 'nents' argument to dma_sync_sg_for_cpu() and
dma_sync_sg_for_device() must be the same passed to
dma_map_sg(). It is _NOT_ the count returned by
dma_map_sg().
@@ -692,7 +685,7 @@ dma_map_*() call till dma_unmap_*(), then you don't have to call the
dma_sync_*() routines at all.
Here is pseudo code which shows a situation in which you would need
-to use the dma_sync_*() interfaces.
+to use the dma_sync_*() interfaces::
my_card_setup_receive_buffer(struct my_card *cp, char *buffer, int len)
{
@@ -768,7 +761,8 @@ is planned to completely remove virt_to_bus() and bus_to_virt() as
they are entirely deprecated. Some ports already do not provide these
as it is impossible to correctly support them.
- Handling Errors
+Handling Errors
+===============
DMA address space is limited on some architectures and an allocation
failure can be determined by:
@@ -776,7 +770,7 @@ failure can be determined by:
- checking if dma_alloc_coherent() returns NULL or dma_map_sg returns 0
- checking the dma_addr_t returned from dma_map_single() and dma_map_page()
- by using dma_mapping_error():
+ by using dma_mapping_error()::
dma_addr_t dma_handle;
@@ -794,7 +788,8 @@ failure can be determined by:
of a multiple page mapping attempt. These example are applicable to
dma_map_page() as well.
-Example 1:
+Example 1::
+
dma_addr_t dma_handle1;
dma_addr_t dma_handle2;
@@ -823,8 +818,12 @@ Example 1:
dma_unmap_single(dma_handle1);
map_error_handling1:
-Example 2: (if buffers are allocated in a loop, unmap all mapped buffers when
- mapping error is detected in the middle)
+Example 2::
+
+ /*
+ * if buffers are allocated in a loop, unmap all mapped buffers when
+ * mapping error is detected in the middle
+ */
dma_addr_t dma_addr;
dma_addr_t array[DMA_BUFFERS];
@@ -867,7 +866,8 @@ SCSI drivers must return SCSI_MLQUEUE_HOST_BUSY if the DMA mapping
fails in the queuecommand hook. This means that the SCSI subsystem
passes the command to the driver again later.
- Optimizing Unmap State Space Consumption
+Optimizing Unmap State Space Consumption
+========================================
On many platforms, dma_unmap_{single,page}() is simply a nop.
Therefore, keeping track of the mapping address and length is a waste
@@ -879,7 +879,7 @@ Actually, instead of describing the macros one by one, we'll
transform some example code.
1) Use DEFINE_DMA_UNMAP_{ADDR,LEN} in state saving structures.
- Example, before:
+ Example, before::
struct ring_state {
struct sk_buff *skb;
@@ -887,7 +887,7 @@ transform some example code.
__u32 len;
};
- after:
+ after::
struct ring_state {
struct sk_buff *skb;
@@ -896,23 +896,23 @@ transform some example code.
};
2) Use dma_unmap_{addr,len}_set() to set these values.
- Example, before:
+ Example, before::
ringp->mapping = FOO;
ringp->len = BAR;
- after:
+ after::
dma_unmap_addr_set(ringp, mapping, FOO);
dma_unmap_len_set(ringp, len, BAR);
3) Use dma_unmap_{addr,len}() to access these values.
- Example, before:
+ Example, before::
dma_unmap_single(dev, ringp->mapping, ringp->len,
DMA_FROM_DEVICE);
- after:
+ after::
dma_unmap_single(dev,
dma_unmap_addr(ringp, mapping),
@@ -923,7 +923,8 @@ It really should be self-explanatory. We treat the ADDR and LEN
separately, because it is possible for an implementation to only
need the address in order to perform the unmap operation.
- Platform Issues
+Platform Issues
+===============
If you are just writing drivers for Linux and do not maintain
an architecture port for the kernel, you can safely skip down
@@ -949,12 +950,13 @@ to "Closing".
alignment constraints (e.g. the alignment constraints about 64-bit
objects).
- Closing
+Closing
+=======
This document, and the API itself, would not be in its current
form without the feedback and suggestions from numerous individuals.
We would like to specifically mention, in no particular order, the
-following people:
+following people::
Russell King <rmk@arm.linux.org.uk>
Leo Dagum <dagum@barrel.engr.sgi.com>
diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt
index 6b20128fab8a..ac66ae2509a9 100644
--- a/Documentation/DMA-API.txt
+++ b/Documentation/DMA-API.txt
@@ -1,7 +1,8 @@
- Dynamic DMA mapping using the generic device
- ============================================
+============================================
+Dynamic DMA mapping using the generic device
+============================================
- James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
+:Author: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
This document describes the DMA API. For a more gentle introduction
of the API (and actual examples), see Documentation/DMA-API-HOWTO.txt.
@@ -12,10 +13,10 @@ machines. Unless you know that your driver absolutely has to support
non-consistent platforms (this is usually only legacy platforms) you
should only use the API described in part I.
-Part I - dma_ API
--------------------------------------
+Part I - dma_API
+----------------
-To get the dma_ API, you must #include <linux/dma-mapping.h>. This
+To get the dma_API, you must #include <linux/dma-mapping.h>. This
provides dma_addr_t and the interfaces described below.
A dma_addr_t can hold any valid DMA address for the platform. It can be
@@ -26,9 +27,11 @@ address space and the DMA address space.
Part Ia - Using large DMA-coherent buffers
------------------------------------------
-void *
-dma_alloc_coherent(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t flag)
+::
+
+ void *
+ dma_alloc_coherent(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t flag)
Consistent memory is memory for which a write by either the device or
the processor can immediately be read by the processor or device
@@ -51,20 +54,24 @@ consolidate your requests for consistent memory as much as possible.
The simplest way to do that is to use the dma_pool calls (see below).
The flag parameter (dma_alloc_coherent() only) allows the caller to
-specify the GFP_ flags (see kmalloc()) for the allocation (the
+specify the ``GFP_`` flags (see kmalloc()) for the allocation (the
implementation may choose to ignore flags that affect the location of
the returned memory, like GFP_DMA).
-void *
-dma_zalloc_coherent(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t flag)
+::
+
+ void *
+ dma_zalloc_coherent(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t flag)
Wraps dma_alloc_coherent() and also zeroes the returned memory if the
allocation attempt succeeded.
-void
-dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
- dma_addr_t dma_handle)
+::
+
+ void
+ dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
+ dma_addr_t dma_handle)
Free a region of consistent memory you previously allocated. dev,
size and dma_handle must all be the same as those passed into
@@ -78,7 +85,7 @@ may only be called with IRQs enabled.
Part Ib - Using small DMA-coherent buffers
------------------------------------------
-To get this part of the dma_ API, you must #include <linux/dmapool.h>
+To get this part of the dma_API, you must #include <linux/dmapool.h>
Many drivers need lots of small DMA-coherent memory regions for DMA
descriptors or I/O buffers. Rather than allocating in units of a page
@@ -88,6 +95,8 @@ not __get_free_pages(). Also, they understand common hardware constraints
for alignment, like queue heads needing to be aligned on N-byte boundaries.
+::
+
struct dma_pool *
dma_pool_create(const char *name, struct device *dev,
size_t size, size_t align, size_t alloc);
@@ -103,16 +112,21 @@ in bytes, and must be a power of two). If your device has no boundary
crossing restrictions, pass 0 for alloc; passing 4096 says memory allocated
from this pool must not cross 4KByte boundaries.
+::
- void *dma_pool_zalloc(struct dma_pool *pool, gfp_t mem_flags,
- dma_addr_t *handle)
+ void *
+ dma_pool_zalloc(struct dma_pool *pool, gfp_t mem_flags,
+ dma_addr_t *handle)
Wraps dma_pool_alloc() and also zeroes the returned memory if the
allocation attempt succeeded.
- void *dma_pool_alloc(struct dma_pool *pool, gfp_t gfp_flags,
- dma_addr_t *dma_handle);
+::
+
+ void *
+ dma_pool_alloc(struct dma_pool *pool, gfp_t gfp_flags,
+ dma_addr_t *dma_handle);
This allocates memory from the pool; the returned memory will meet the
size and alignment requirements specified at creation time. Pass
@@ -122,16 +136,20 @@ blocking. Like dma_alloc_coherent(), this returns two values: an
address usable by the CPU, and the DMA address usable by the pool's
device.
+::
- void dma_pool_free(struct dma_pool *pool, void *vaddr,
- dma_addr_t addr);
+ void
+ dma_pool_free(struct dma_pool *pool, void *vaddr,
+ dma_addr_t addr);
This puts memory back into the pool. The pool is what was passed to
dma_pool_alloc(); the CPU (vaddr) and DMA addresses are what
were returned when that routine allocated the memory being freed.
+::
- void dma_pool_destroy(struct dma_pool *pool);
+ void
+ dma_pool_destroy(struct dma_pool *pool);
dma_pool_destroy() frees the resources of the pool. It must be
called in a context which can sleep. Make sure you've freed all allocated
@@ -141,32 +159,40 @@ memory back to the pool before you destroy it.
Part Ic - DMA addressing limitations
------------------------------------
-int
-dma_set_mask_and_coherent(struct device *dev, u64 mask)
+::
+
+ int
+ dma_set_mask_and_coherent(struct device *dev, u64 mask)
Checks to see if the mask is possible and updates the device
streaming and coherent DMA mask parameters if it is.
Returns: 0 if successful and a negative error if not.
-int
-dma_set_mask(struct device *dev, u64 mask)
+::
+
+ int
+ dma_set_mask(struct device *dev, u64 mask)
Checks to see if the mask is possible and updates the device
parameters if it is.
Returns: 0 if successful and a negative error if not.
-int
-dma_set_coherent_mask(struct device *dev, u64 mask)
+::
+
+ int
+ dma_set_coherent_mask(struct device *dev, u64 mask)
Checks to see if the mask is possible and updates the device
parameters if it is.
Returns: 0 if successful and a negative error if not.
-u64
-dma_get_required_mask(struct device *dev)
+::
+
+ u64
+ dma_get_required_mask(struct device *dev)
This API returns the mask that the platform requires to
operate efficiently. Usually this means the returned mask
@@ -182,94 +208,107 @@ call to set the mask to the value returned.
Part Id - Streaming DMA mappings
--------------------------------
-dma_addr_t
-dma_map_single(struct device *dev, void *cpu_addr, size_t size,
- enum dma_data_direction direction)
+::
+
+ dma_addr_t
+ dma_map_single(struct device *dev, void *cpu_addr, size_t size,
+ enum dma_data_direction direction)
Maps a piece of processor virtual memory so it can be accessed by the
device and returns the DMA address of the memory.
The direction for both APIs may be converted freely by casting.
-However the dma_ API uses a strongly typed enumerator for its
+However the dma_API uses a strongly typed enumerator for its
direction:
+======================= =============================================
DMA_NONE no direction (used for debugging)
DMA_TO_DEVICE data is going from the memory to the device
DMA_FROM_DEVICE data is coming from the device to the memory
DMA_BIDIRECTIONAL direction isn't known
+======================= =============================================
+
+.. note::
+
+ Not all memory regions in a machine can be mapped by this API.
+ Further, contiguous kernel virtual space may not be contiguous as
+ physical memory. Since this API does not provide any scatter/gather
+ capability, it will fail if the user tries to map a non-physically
+ contiguous piece of memory. For this reason, memory to be mapped by
+ this API should be obtained from sources which guarantee it to be
+ physically contiguous (like kmalloc).
+
+ Further, the DMA address of the memory must be within the
+ dma_mask of the device (the dma_mask is a bit mask of the
+ addressable region for the device, i.e., if the DMA address of
+ the memory ANDed with the dma_mask is still equal to the DMA
+ address, then the device can perform DMA to the memory). To
+ ensure that the memory allocated by kmalloc is within the dma_mask,
+ the driver may specify various platform-dependent flags to restrict
+ the DMA address range of the allocation (e.g., on x86, GFP_DMA
+ guarantees to be within the first 16MB of available DMA addresses,
+ as required by ISA devices).
+
+ Note also that the above constraints on physical contiguity and
+ dma_mask may not apply if the platform has an IOMMU (a device which
+ maps an I/O DMA address to a physical memory address). However, to be
+ portable, device driver writers may *not* assume that such an IOMMU
+ exists.
+
+.. warning::
+
+ Memory coherency operates at a granularity called the cache
+ line width. In order for memory mapped by this API to operate
+ correctly, the mapped region must begin exactly on a cache line
+ boundary and end exactly on one (to prevent two separately mapped
+ regions from sharing a single cache line). Since the cache line size
+ may not be known at compile time, the API will not enforce this
+ requirement. Therefore, it is recommended that driver writers who
+ don't take special care to determine the cache line size at run time
+ only map virtual regions that begin and end on page boundaries (which
+ are guaranteed also to be cache line boundaries).
+
+ DMA_TO_DEVICE synchronisation must be done after the last modification
+ of the memory region by the software and before it is handed off to
+ the device. Once this primitive is used, memory covered by this
+ primitive should be treated as read-only by the device. If the device
+ may write to it at any point, it should be DMA_BIDIRECTIONAL (see
+ below).
+
+ DMA_FROM_DEVICE synchronisation must be done before the driver
+ accesses data that may be changed by the device. This memory should
+ be treated as read-only by the driver. If the driver needs to write
+ to it at any point, it should be DMA_BIDIRECTIONAL (see below).
+
+ DMA_BIDIRECTIONAL requires special handling: it means that the driver
+ isn't sure if the memory was modified before being handed off to the
+ device and also isn't sure if the device will also modify it. Thus,
+ you must always sync bidirectional memory twice: once before the
+ memory is handed off to the device (to make sure all memory changes
+ are flushed from the processor) and once before the data may be
+ accessed after being used by the device (to make sure any processor
+ cache lines are updated with data that the device may have changed).
+
+::
-Notes: Not all memory regions in a machine can be mapped by this API.
-Further, contiguous kernel virtual space may not be contiguous as
-physical memory. Since this API does not provide any scatter/gather
-capability, it will fail if the user tries to map a non-physically
-contiguous piece of memory. For this reason, memory to be mapped by
-this API should be obtained from sources which guarantee it to be
-physically contiguous (like kmalloc).
-
-Further, the DMA address of the memory must be within the
-dma_mask of the device (the dma_mask is a bit mask of the
-addressable region for the device, i.e., if the DMA address of
-the memory ANDed with the dma_mask is still equal to the DMA
-address, then the device can perform DMA to the memory). To
-ensure that the memory allocated by kmalloc is within the dma_mask,
-the driver may specify various platform-dependent flags to restrict
-the DMA address range of the allocation (e.g., on x86, GFP_DMA
-guarantees to be within the first 16MB of available DMA addresses,
-as required by ISA devices).
-
-Note also that the above constraints on physical contiguity and
-dma_mask may not apply if the platform has an IOMMU (a device which
-maps an I/O DMA address to a physical memory address). However, to be
-portable, device driver writers may *not* assume that such an IOMMU
-exists.
-
-Warnings: Memory coherency operates at a granularity called the cache
-line width. In order for memory mapped by this API to operate
-correctly, the mapped region must begin exactly on a cache line
-boundary and end exactly on one (to prevent two separately mapped
-regions from sharing a single cache line). Since the cache line size
-may not be known at compile time, the API will not enforce this
-requirement. Therefore, it is recommended that driver writers who
-don't take special care to determine the cache line size at run time
-only map virtual regions that begin and end on page boundaries (which
-are guaranteed also to be cache line boundaries).
-
-DMA_TO_DEVICE synchronisation must be done after the last modification
-of the memory region by the software and before it is handed off to
-the device. Once this primitive is used, memory covered by this
-primitive should be treated as read-only by the device. If the device
-may write to it at any point, it should be DMA_BIDIRECTIONAL (see
-below).
-
-DMA_FROM_DEVICE synchronisation must be done before the driver
-accesses data that may be changed by the device. This memory should
-be treated as read-only by the driver. If the driver needs to write
-to it at any point, it should be DMA_BIDIRECTIONAL (see below).
-
-DMA_BIDIRECTIONAL requires special handling: it means that the driver
-isn't sure if the memory was modified before being handed off to the
-device and also isn't sure if the device will also modify it. Thus,
-you must always sync bidirectional memory twice: once before the
-memory is handed off to the device (to make sure all memory changes
-are flushed from the processor) and once before the data may be
-accessed after being used by the device (to make sure any processor
-cache lines are updated with data that the device may have changed).
-
-void
-dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
- enum dma_data_direction direction)
+ void
+ dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
+ enum dma_data_direction direction)
Unmaps the region previously mapped. All the parameters passed in
must be identical to those passed in (and returned) by the mapping
API.
-dma_addr_t
-dma_map_page(struct device *dev, struct page *page,
- unsigned long offset, size_t size,
- enum dma_data_direction direction)
-void
-dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
- enum dma_data_direction direction)
+::
+
+ dma_addr_t
+ dma_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction direction)
+
+ void
+ dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
+ enum dma_data_direction direction)
API for mapping and unmapping for pages. All the notes and warnings
for the other mapping APIs apply here. Also, although the <offset>
@@ -277,20 +316,24 @@ and <size> parameters are provided to do partial page mapping, it is
recommended that you never use these unless you really know what the
cache width is.
-dma_addr_t
-dma_map_resource(struct device *dev, phys_addr_t phys_addr, size_t size,
- enum dma_data_direction dir, unsigned long attrs)
+::
-void
-dma_unmap_resource(struct device *dev, dma_addr_t addr, size_t size,
- enum dma_data_direction dir, unsigned long attrs)
+ dma_addr_t
+ dma_map_resource(struct device *dev, phys_addr_t phys_addr, size_t size,
+ enum dma_data_direction dir, unsigned long attrs)
+
+ void
+ dma_unmap_resource(struct device *dev, dma_addr_t addr, size_t size,
+ enum dma_data_direction dir, unsigned long attrs)
API for mapping and unmapping for MMIO resources. All the notes and
warnings for the other mapping APIs apply here. The API should only be
used to map device MMIO resources, mapping of RAM is not permitted.
-int
-dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+::
+
+ int
+ dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
In some circumstances dma_map_single(), dma_map_page() and dma_map_resource()
will fail to create a mapping. A driver can check for these errors by testing
@@ -298,9 +341,11 @@ the returned DMA address with dma_mapping_error(). A non-zero return value
means the mapping could not be created and the driver should take appropriate
action (e.g. reduce current DMA mapping usage or delay and try again later).
+::
+
int
dma_map_sg(struct device *dev, struct scatterlist *sg,
- int nents, enum dma_data_direction direction)
+ int nents, enum dma_data_direction direction)
Returns: the number of DMA address segments mapped (this may be shorter
than <nents> passed in if some elements of the scatter/gather list are
@@ -316,7 +361,7 @@ critical that the driver do something, in the case of a block driver
aborting the request or even oopsing is better than doing nothing and
corrupting the filesystem.
-With scatterlists, you use the resulting mapping like this:
+With scatterlists, you use the resulting mapping like this::
int i, count = dma_map_sg(dev, sglist, nents, direction);
struct scatterlist *sg;
@@ -337,9 +382,11 @@ Then you should loop count times (note: this can be less than nents times)
and use sg_dma_address() and sg_dma_len() macros where you previously
accessed sg->address and sg->length as shown above.
+::
+
void
dma_unmap_sg(struct device *dev, struct scatterlist *sg,
- int nents, enum dma_data_direction direction)
+ int nents, enum dma_data_direction direction)
Unmap the previously mapped scatter/gather list. All the parameters
must be the same as those and passed in to the scatter/gather mapping
@@ -348,18 +395,27 @@ API.
Note: <nents> must be the number you passed in, *not* the number of
DMA address entries returned.
-void
-dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
- enum dma_data_direction direction)
-void
-dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size,
- enum dma_data_direction direction)
-void
-dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents,
- enum dma_data_direction direction)
-void
-dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents,
- enum dma_data_direction direction)
+::
+
+ void
+ dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
+ size_t size,
+ enum dma_data_direction direction)
+
+ void
+ dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
+ size_t size,
+ enum dma_data_direction direction)
+
+ void
+ dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
+ int nents,
+ enum dma_data_direction direction)
+
+ void
+ dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
+ int nents,
+ enum dma_data_direction direction)
Synchronise a single contiguous or scatter/gather mapping for the CPU
and device. With the sync_sg API, all the parameters must be the same
@@ -367,36 +423,41 @@ as those passed into the single mapping API. With the sync_single API,
you can use dma_handle and size parameters that aren't identical to
those passed into the single mapping API to do a partial sync.
-Notes: You must do this:
-- Before reading values that have been written by DMA from the device
- (use the DMA_FROM_DEVICE direction)
-- After writing values that will be written to the device using DMA
- (use the DMA_TO_DEVICE) direction
-- before *and* after handing memory to the device if the memory is
- DMA_BIDIRECTIONAL
+.. note::
+
+ You must do this:
+
+ - Before reading values that have been written by DMA from the device
+ (use the DMA_FROM_DEVICE direction)
+ - After writing values that will be written to the device using DMA
+ (use the DMA_TO_DEVICE) direction
+ - before *and* after handing memory to the device if the memory is
+ DMA_BIDIRECTIONAL
See also dma_map_single().
-dma_addr_t
-dma_map_single_attrs(struct device *dev, void *cpu_addr, size_t size,
- enum dma_data_direction dir,
- unsigned long attrs)
+::
-void
-dma_unmap_single_attrs(struct device *dev, dma_addr_t dma_addr,
- size_t size, enum dma_data_direction dir,
- unsigned long attrs)
+ dma_addr_t
+ dma_map_single_attrs(struct device *dev, void *cpu_addr, size_t size,
+ enum dma_data_direction dir,
+ unsigned long attrs)
-int
-dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
- int nents, enum dma_data_direction dir,
- unsigned long attrs)
+ void
+ dma_unmap_single_attrs(struct device *dev, dma_addr_t dma_addr,
+ size_t size, enum dma_data_direction dir,
+ unsigned long attrs)
+
+ int
+ dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
+ int nents, enum dma_data_direction dir,
+ unsigned long attrs)
-void
-dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl,
- int nents, enum dma_data_direction dir,
- unsigned long attrs)
+ void
+ dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl,
+ int nents, enum dma_data_direction dir,
+ unsigned long attrs)
The four functions above are just like the counterpart functions
without the _attrs suffixes, except that they pass an optional
@@ -410,37 +471,38 @@ is identical to those of the corresponding function
without the _attrs suffix. As a result dma_map_single_attrs()
can generally replace dma_map_single(), etc.
-As an example of the use of the *_attrs functions, here's how
+As an example of the use of the ``*_attrs`` functions, here's how
you could pass an attribute DMA_ATTR_FOO when mapping memory
-for DMA:
+for DMA::
-#include <linux/dma-mapping.h>
-/* DMA_ATTR_FOO should be defined in linux/dma-mapping.h and
- * documented in Documentation/DMA-attributes.txt */
-...
+ #include <linux/dma-mapping.h>
+ /* DMA_ATTR_FOO should be defined in linux/dma-mapping.h and
+ * documented in Documentation/DMA-attributes.txt */
+ ...
- unsigned long attr;
- attr |= DMA_ATTR_FOO;
- ....
- n = dma_map_sg_attrs(dev, sg, nents, DMA_TO_DEVICE, attr);
- ....
+ unsigned long attr;
+ attr |= DMA_ATTR_FOO;
+ ....
+ n = dma_map_sg_attrs(dev, sg, nents, DMA_TO_DEVICE, attr);
+ ....
Architectures that care about DMA_ATTR_FOO would check for its
presence in their implementations of the mapping and unmapping
-routines, e.g.:
-
-void whizco_dma_map_sg_attrs(struct device *dev, dma_addr_t dma_addr,
- size_t size, enum dma_data_direction dir,
- unsigned long attrs)
-{
- ....
- if (attrs & DMA_ATTR_FOO)
- /* twizzle the frobnozzle */
- ....
+routines, e.g.:::
+
+ void whizco_dma_map_sg_attrs(struct device *dev, dma_addr_t dma_addr,
+ size_t size, enum dma_data_direction dir,
+ unsigned long attrs)
+ {
+ ....
+ if (attrs & DMA_ATTR_FOO)
+ /* twizzle the frobnozzle */
+ ....
+ }
-Part II - Advanced dma_ usage
------------------------------
+Part II - Advanced dma usage
+----------------------------
Warning: These pieces of the DMA API should not be used in the
majority of cases, since they cater for unlikely corner cases that
@@ -450,15 +512,18 @@ If you don't understand how cache line coherency works between a
processor and an I/O device, you should not be using this part of the
API at all.
-void *
-dma_alloc_noncoherent(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t flag)
+::
-Identical to dma_alloc_coherent() except that the platform will
-choose to return either consistent or non-consistent memory as it sees
-fit. By using this API, you are guaranteeing to the platform that you
-have all the correct and necessary sync points for this memory in the
-driver should it choose to return non-consistent memory.
+ void *
+ dma_alloc_attrs(struct device *dev, size_t size, dma_addr_t *dma_handle,
+ gfp_t flag, unsigned long attrs)
+
+Identical to dma_alloc_coherent() except that when the
+DMA_ATTR_NON_CONSISTENT flags is passed in the attrs argument, the
+platform will choose to return either consistent or non-consistent memory
+as it sees fit. By using this API, you are guaranteeing to the platform
+that you have all the correct and necessary sync points for this memory
+in the driver should it choose to return non-consistent memory.
Note: where the platform can return consistent memory, it will
guarantee that the sync points become nops.
@@ -468,39 +533,50 @@ only use this API if you positively know your driver will be
required to work on one of the rare (usually non-PCI) architectures
that simply cannot make consistent memory.
-void
-dma_free_noncoherent(struct device *dev, size_t size, void *cpu_addr,
- dma_addr_t dma_handle)
+::
-Free memory allocated by the nonconsistent API. All parameters must
-be identical to those passed in (and returned by
-dma_alloc_noncoherent()).
+ void
+ dma_free_attrs(struct device *dev, size_t size, void *cpu_addr,
+ dma_addr_t dma_handle, unsigned long attrs)
-int
-dma_get_cache_alignment(void)
+Free memory allocated by the dma_alloc_attrs(). All parameters common
+parameters must identical to those otherwise passed to dma_fre_coherent,
+and the attrs argument must be identical to the attrs passed to
+dma_alloc_attrs().
+
+::
+
+ int
+ dma_get_cache_alignment(void)
Returns the processor cache alignment. This is the absolute minimum
alignment *and* width that you must observe when either mapping
memory or doing partial flushes.
-Notes: This API may return a number *larger* than the actual cache
-line, but it will guarantee that one or more cache lines fit exactly
-into the width returned by this call. It will also always be a power
-of two for easy alignment.
+.. note::
+
+ This API may return a number *larger* than the actual cache
+ line, but it will guarantee that one or more cache lines fit exactly
+ into the width returned by this call. It will also always be a power
+ of two for easy alignment.
-void
-dma_cache_sync(struct device *dev, void *vaddr, size_t size,
- enum dma_data_direction direction)
+::
-Do a partial sync of memory that was allocated by
-dma_alloc_noncoherent(), starting at virtual address vaddr and
+ void
+ dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+ enum dma_data_direction direction)
+
+Do a partial sync of memory that was allocated by dma_alloc_attrs() with
+the DMA_ATTR_NON_CONSISTENT flag starting at virtual address vaddr and
continuing on for size. Again, you *must* observe the cache line
boundaries when doing this.
-int
-dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
- dma_addr_t device_addr, size_t size, int
- flags)
+::
+
+ int
+ dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
+ dma_addr_t device_addr, size_t size, int
+ flags)
Declare region of memory to be handed out by dma_alloc_coherent() when
it's asked for coherent memory for this device.
@@ -516,32 +592,9 @@ size is the size of the area (must be multiples of PAGE_SIZE).
flags can be ORed together and are:
-DMA_MEMORY_MAP - request that the memory returned from
-dma_alloc_coherent() be directly writable.
-
-DMA_MEMORY_IO - request that the memory returned from
-dma_alloc_coherent() be addressable using read()/write()/memcpy_toio() etc.
-
-One or both of these flags must be present.
-
-DMA_MEMORY_INCLUDES_CHILDREN - make the declared memory be allocated by
-dma_alloc_coherent of any child devices of this one (for memory residing
-on a bridge).
-
-DMA_MEMORY_EXCLUSIVE - only allocate memory from the declared regions.
-Do not allow dma_alloc_coherent() to fall back to system memory when
-it's out of memory in the declared region.
-
-The return value will be either DMA_MEMORY_MAP or DMA_MEMORY_IO and
-must correspond to a passed in flag (i.e. no returning DMA_MEMORY_IO
-if only DMA_MEMORY_MAP were passed in) for success or zero for
-failure.
-
-Note, for DMA_MEMORY_IO returns, all subsequent memory returned by
-dma_alloc_coherent() may no longer be accessed directly, but instead
-must be accessed using the correct bus functions. If your driver
-isn't prepared to handle this contingency, it should not specify
-DMA_MEMORY_IO in the input flags.
+- DMA_MEMORY_EXCLUSIVE - only allocate memory from the declared regions.
+ Do not allow dma_alloc_coherent() to fall back to system memory when
+ it's out of memory in the declared region.
As a simplification for the platforms, only *one* such region of
memory may be declared per device.
@@ -550,8 +603,10 @@ For reasons of efficiency, most platforms choose to track the declared
region only at the granularity of a page. For smaller allocations,
you should use the dma_pool() API.
-void
-dma_release_declared_memory(struct device *dev)
+::
+
+ void
+ dma_release_declared_memory(struct device *dev)
Remove the memory region previously declared from the system. This
API performs *no* in-use checking for this region and will return
@@ -559,9 +614,11 @@ unconditionally having removed all the required structures. It is the
driver's job to ensure that no parts of this memory region are
currently in use.
-void *
-dma_mark_declared_memory_occupied(struct device *dev,
- dma_addr_t device_addr, size_t size)
+::
+
+ void *
+ dma_mark_declared_memory_occupied(struct device *dev,
+ dma_addr_t device_addr, size_t size)
This is used to occupy specific regions of the declared space
(dma_alloc_coherent() will hand out the first free region it finds).
@@ -592,38 +649,37 @@ option has a performance impact. Do not enable it in production kernels.
If you boot the resulting kernel will contain code which does some bookkeeping
about what DMA memory was allocated for which device. If this code detects an
error it prints a warning message with some details into your kernel log. An
-example warning message may look like this:
-
-------------[ cut here ]------------
-WARNING: at /data2/repos/linux-2.6-iommu/lib/dma-debug.c:448
- check_unmap+0x203/0x490()
-Hardware name:
-forcedeth 0000:00:08.0: DMA-API: device driver frees DMA memory with wrong
- function [device address=0x00000000640444be] [size=66 bytes] [mapped as
-single] [unmapped as page]
-Modules linked in: nfsd exportfs bridge stp llc r8169
-Pid: 0, comm: swapper Tainted: G W 2.6.28-dmatest-09289-g8bb99c0 #1
-Call Trace:
- <IRQ> [<ffffffff80240b22>] warn_slowpath+0xf2/0x130
- [<ffffffff80647b70>] _spin_unlock+0x10/0x30
- [<ffffffff80537e75>] usb_hcd_link_urb_to_ep+0x75/0xc0
- [<ffffffff80647c22>] _spin_unlock_irqrestore+0x12/0x40
- [<ffffffff8055347f>] ohci_urb_enqueue+0x19f/0x7c0
- [<ffffffff80252f96>] queue_work+0x56/0x60
- [<ffffffff80237e10>] enqueue_task_fair+0x20/0x50
- [<ffffffff80539279>] usb_hcd_submit_urb+0x379/0xbc0
- [<ffffffff803b78c3>] cpumask_next_and+0x23/0x40
- [<ffffffff80235177>] find_busiest_group+0x207/0x8a0
- [<ffffffff8064784f>] _spin_lock_irqsave+0x1f/0x50
- [<ffffffff803c7ea3>] check_unmap+0x203/0x490
- [<ffffffff803c8259>] debug_dma_unmap_page+0x49/0x50
- [<ffffffff80485f26>] nv_tx_done_optimized+0xc6/0x2c0
- [<ffffffff80486c13>] nv_nic_irq_optimized+0x73/0x2b0
- [<ffffffff8026df84>] handle_IRQ_event+0x34/0x70
- [<ffffffff8026ffe9>] handle_edge_irq+0xc9/0x150
- [<ffffffff8020e3ab>] do_IRQ+0xcb/0x1c0
- [<ffffffff8020c093>] ret_from_intr+0x0/0xa
- <EOI> <4>---[ end trace f6435a98e2a38c0e ]---
+example warning message may look like this::
+
+ WARNING: at /data2/repos/linux-2.6-iommu/lib/dma-debug.c:448
+ check_unmap+0x203/0x490()
+ Hardware name:
+ forcedeth 0000:00:08.0: DMA-API: device driver frees DMA memory with wrong
+ function [device address=0x00000000640444be] [size=66 bytes] [mapped as
+ single] [unmapped as page]
+ Modules linked in: nfsd exportfs bridge stp llc r8169
+ Pid: 0, comm: swapper Tainted: G W 2.6.28-dmatest-09289-g8bb99c0 #1
+ Call Trace:
+ <IRQ> [<ffffffff80240b22>] warn_slowpath+0xf2/0x130
+ [<ffffffff80647b70>] _spin_unlock+0x10/0x30
+ [<ffffffff80537e75>] usb_hcd_link_urb_to_ep+0x75/0xc0
+ [<ffffffff80647c22>] _spin_unlock_irqrestore+0x12/0x40
+ [<ffffffff8055347f>] ohci_urb_enqueue+0x19f/0x7c0
+ [<ffffffff80252f96>] queue_work+0x56/0x60
+ [<ffffffff80237e10>] enqueue_task_fair+0x20/0x50
+ [<ffffffff80539279>] usb_hcd_submit_urb+0x379/0xbc0
+ [<ffffffff803b78c3>] cpumask_next_and+0x23/0x40
+ [<ffffffff80235177>] find_busiest_group+0x207/0x8a0
+ [<ffffffff8064784f>] _spin_lock_irqsave+0x1f/0x50
+ [<ffffffff803c7ea3>] check_unmap+0x203/0x490
+ [<ffffffff803c8259>] debug_dma_unmap_page+0x49/0x50
+ [<ffffffff80485f26>] nv_tx_done_optimized+0xc6/0x2c0
+ [<ffffffff80486c13>] nv_nic_irq_optimized+0x73/0x2b0
+ [<ffffffff8026df84>] handle_IRQ_event+0x34/0x70
+ [<ffffffff8026ffe9>] handle_edge_irq+0xc9/0x150
+ [<ffffffff8020e3ab>] do_IRQ+0xcb/0x1c0
+ [<ffffffff8020c093>] ret_from_intr+0x0/0xa
+ <EOI> <4>---[ end trace f6435a98e2a38c0e ]---
The driver developer can find the driver and the device including a stacktrace
of the DMA-API call which caused this warning.
@@ -637,43 +693,42 @@ details.
The debugfs directory for the DMA-API debugging code is called dma-api/. In
this directory the following files can currently be found:
- dma-api/all_errors This file contains a numeric value. If this
+=============================== ===============================================
+dma-api/all_errors This file contains a numeric value. If this
value is not equal to zero the debugging code
will print a warning for every error it finds
into the kernel log. Be careful with this
option, as it can easily flood your logs.
- dma-api/disabled This read-only file contains the character 'Y'
+dma-api/disabled This read-only file contains the character 'Y'
if the debugging code is disabled. This can
happen when it runs out of memory or if it was
disabled at boot time
- dma-api/error_count This file is read-only and shows the total
+dma-api/error_count This file is read-only and shows the total
numbers of errors found.
- dma-api/num_errors The number in this file shows how many
+dma-api/num_errors The number in this file shows how many
warnings will be printed to the kernel log
before it stops. This number is initialized to
one at system boot and be set by writing into
this file
- dma-api/min_free_entries
- This read-only file can be read to get the
+dma-api/min_free_entries This read-only file can be read to get the
minimum number of free dma_debug_entries the
allocator has ever seen. If this value goes
down to zero the code will disable itself
because it is not longer reliable.
- dma-api/num_free_entries
- The current number of free dma_debug_entries
+dma-api/num_free_entries The current number of free dma_debug_entries
in the allocator.
- dma-api/driver-filter
- You can write a name of a driver into this file
+dma-api/driver-filter You can write a name of a driver into this file
to limit the debug output to requests from that
particular driver. Write an empty string to
that file to disable the filter and see
all errors again.
+=============================== ===============================================
If you have this code compiled into your kernel it will be enabled by default.
If you want to boot without the bookkeeping anyway you can provide
@@ -692,7 +747,10 @@ of preallocated entries is defined per architecture. If it is too low for you
boot with 'dma_debug_entries=<your_desired_number>' to overwrite the
architectural default.
-void debug_dmap_mapping_error(struct device *dev, dma_addr_t dma_addr);
+::
+
+ void
+ debug_dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
dma-debug interface debug_dma_mapping_error() to debug drivers that fail
to check DMA mapping errors on addresses returned by dma_map_single() and
@@ -702,4 +760,3 @@ the driver. When driver does unmap, debug_dma_unmap() checks the flag and if
this flag is still set, prints warning message that includes call trace that
leads up to the unmap. This interface can be called from dma_mapping_error()
routines to enable DMA mapping error check debugging.
-
diff --git a/Documentation/DMA-ISA-LPC.txt b/Documentation/DMA-ISA-LPC.txt
index c41331398752..8c2b8be6e45b 100644
--- a/Documentation/DMA-ISA-LPC.txt
+++ b/Documentation/DMA-ISA-LPC.txt
@@ -1,19 +1,20 @@
- DMA with ISA and LPC devices
- ============================
+============================
+DMA with ISA and LPC devices
+============================
- Pierre Ossman <drzeus@drzeus.cx>
+:Author: Pierre Ossman <drzeus@drzeus.cx>
This document describes how to do DMA transfers using the old ISA DMA
controller. Even though ISA is more or less dead today the LPC bus
uses the same DMA system so it will be around for quite some time.
-Part I - Headers and dependencies
----------------------------------
+Headers and dependencies
+------------------------
-To do ISA style DMA you need to include two headers:
+To do ISA style DMA you need to include two headers::
-#include <linux/dma-mapping.h>
-#include <asm/dma.h>
+ #include <linux/dma-mapping.h>
+ #include <asm/dma.h>
The first is the generic DMA API used to convert virtual addresses to
bus addresses (see Documentation/DMA-API.txt for details).
@@ -23,8 +24,8 @@ this is not present on all platforms make sure you construct your
Kconfig to be dependent on ISA_DMA_API (not ISA) so that nobody tries
to build your driver on unsupported platforms.
-Part II - Buffer allocation
----------------------------
+Buffer allocation
+-----------------
The ISA DMA controller has some very strict requirements on which
memory it can access so extra care must be taken when allocating
@@ -42,13 +43,13 @@ requirements you pass the flag GFP_DMA to kmalloc.
Unfortunately the memory available for ISA DMA is scarce so unless you
allocate the memory during boot-up it's a good idea to also pass
-__GFP_REPEAT and __GFP_NOWARN to make the allocator try a bit harder.
+__GFP_RETRY_MAYFAIL and __GFP_NOWARN to make the allocator try a bit harder.
(This scarcity also means that you should allocate the buffer as
early as possible and not release it until the driver is unloaded.)
-Part III - Address translation
-------------------------------
+Address translation
+-------------------
To translate the virtual address to a bus address, use the normal DMA
API. Do _not_ use isa_virt_to_phys() even though it does the same
@@ -61,8 +62,8 @@ Note: x86_64 had a broken DMA API when it came to ISA but has since
been fixed. If your arch has problems then fix the DMA API instead of
reverting to the ISA functions.
-Part IV - Channels
-------------------
+Channels
+--------
A normal ISA DMA controller has 8 channels. The lower four are for
8-bit transfers and the upper four are for 16-bit transfers.
@@ -80,8 +81,8 @@ The ability to use 16-bit or 8-bit transfers is _not_ up to you as a
driver author but depends on what the hardware supports. Check your
specs or test different channels.
-Part V - Transfer data
-----------------------
+Transfer data
+-------------
Now for the good stuff, the actual DMA transfer. :)
@@ -112,37 +113,37 @@ Once the DMA transfer is finished (or timed out) you should disable
the channel again. You should also check get_dma_residue() to make
sure that all data has been transferred.
-Example:
+Example::
-int flags, residue;
+ int flags, residue;
-flags = claim_dma_lock();
+ flags = claim_dma_lock();
-clear_dma_ff();
+ clear_dma_ff();
-set_dma_mode(channel, DMA_MODE_WRITE);
-set_dma_addr(channel, phys_addr);
-set_dma_count(channel, num_bytes);
+ set_dma_mode(channel, DMA_MODE_WRITE);
+ set_dma_addr(channel, phys_addr);
+ set_dma_count(channel, num_bytes);
-dma_enable(channel);
+ dma_enable(channel);
-release_dma_lock(flags);
+ release_dma_lock(flags);
-while (!device_done());
+ while (!device_done());
-flags = claim_dma_lock();
+ flags = claim_dma_lock();
-dma_disable(channel);
+ dma_disable(channel);
-residue = dma_get_residue(channel);
-if (residue != 0)
- printk(KERN_ERR "driver: Incomplete DMA transfer!"
- " %d bytes left!\n", residue);
+ residue = dma_get_residue(channel);
+ if (residue != 0)
+ printk(KERN_ERR "driver: Incomplete DMA transfer!"
+ " %d bytes left!\n", residue);
-release_dma_lock(flags);
+ release_dma_lock(flags);
-Part VI - Suspend/resume
-------------------------
+Suspend/resume
+--------------
It is the driver's responsibility to make sure that the machine isn't
suspended while a DMA transfer is in progress. Also, all DMA settings
diff --git a/Documentation/DMA-attributes.txt b/Documentation/DMA-attributes.txt
index 44c6bc496eee..8f8d97f65d73 100644
--- a/Documentation/DMA-attributes.txt
+++ b/Documentation/DMA-attributes.txt
@@ -1,5 +1,6 @@
- DMA attributes
- ==============
+==============
+DMA attributes
+==============
This document describes the semantics of the DMA attributes that are
defined in linux/dma-mapping.h.
@@ -108,6 +109,7 @@ This is a hint to the DMA-mapping subsystem that it's probably not worth
the time to try to allocate memory to in a way that gives better TLB
efficiency (AKA it's not worth trying to build the mapping out of larger
pages). You might want to specify this if:
+
- You know that the accesses to this memory won't thrash the TLB.
You might know that the accesses are likely to be sequential or
that they aren't sequential but it's unlikely you'll ping-pong
@@ -121,11 +123,12 @@ pages). You might want to specify this if:
the mapping to have a short lifetime then it may be worth it to
optimize allocation (avoid coming up with large pages) instead of
getting the slight performance win of larger pages.
+
Setting this hint doesn't guarantee that you won't get huge pages, but it
means that we won't try quite as hard to get them.
-NOTE: At the moment DMA_ATTR_ALLOC_SINGLE_PAGES is only implemented on ARM,
-though ARM64 patches will likely be posted soon.
+.. note:: At the moment DMA_ATTR_ALLOC_SINGLE_PAGES is only implemented on ARM,
+ though ARM64 patches will likely be posted soon.
DMA_ATTR_NO_WARN
----------------
@@ -142,10 +145,10 @@ problem at all, depending on the implementation of the retry mechanism.
So, this provides a way for drivers to avoid those error messages on calls
where allocation failures are not a problem, and shouldn't bother the logs.
-NOTE: At the moment DMA_ATTR_NO_WARN is only implemented on PowerPC.
+.. note:: At the moment DMA_ATTR_NO_WARN is only implemented on PowerPC.
DMA_ATTR_PRIVILEGED
-------------------------------
+-------------------
Some advanced peripherals such as remote processors and GPUs perform
accesses to DMA buffers in both privileged "supervisor" and unprivileged
diff --git a/Documentation/DocBook/.gitignore b/Documentation/DocBook/.gitignore
deleted file mode 100644
index e05da3f7aa21..000000000000
--- a/Documentation/DocBook/.gitignore
+++ /dev/null
@@ -1,17 +0,0 @@
-*.xml
-*.ps
-*.pdf
-*.html
-*.9.gz
-*.9
-*.aux
-*.dvi
-*.log
-*.out
-*.png
-*.gif
-*.svg
-*.proc
-*.db
-media-indices.tmpl
-media-entities.tmpl
diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile
deleted file mode 100644
index 85916f13d330..000000000000
--- a/Documentation/DocBook/Makefile
+++ /dev/null
@@ -1,282 +0,0 @@
-###
-# This makefile is used to generate the kernel documentation,
-# primarily based on in-line comments in various source files.
-# See Documentation/kernel-doc-nano-HOWTO.txt for instruction in how
-# to document the SRC - and how to read it.
-# To add a new book the only step required is to add the book to the
-# list of DOCBOOKS.
-
-DOCBOOKS := z8530book.xml \
- kernel-hacking.xml kernel-locking.xml \
- networking.xml \
- filesystems.xml lsm.xml kgdb.xml \
- libata.xml mtdnand.xml librs.xml rapidio.xml \
- s390-drivers.xml scsi.xml \
- sh.xml w1.xml
-
-ifeq ($(DOCBOOKS),)
-
-# Skip DocBook build if the user explicitly requested no DOCBOOKS.
-.DEFAULT:
- @echo " SKIP DocBook $@ target (DOCBOOKS=\"\" specified)."
-else
-ifneq ($(SPHINXDIRS),)
-
-# Skip DocBook build if the user explicitly requested a sphinx dir
-.DEFAULT:
- @echo " SKIP DocBook $@ target (SPHINXDIRS specified)."
-else
-
-
-###
-# The build process is as follows (targets):
-# (xmldocs) [by docproc]
-# file.tmpl --> file.xml +--> file.ps (psdocs) [by db2ps or xmlto]
-# +--> file.pdf (pdfdocs) [by db2pdf or xmlto]
-# +--> DIR=file (htmldocs) [by xmlto]
-# +--> man/ (mandocs) [by xmlto]
-
-
-# for PDF and PS output you can choose between xmlto and docbook-utils tools
-PDF_METHOD = $(prefer-db2x)
-PS_METHOD = $(prefer-db2x)
-
-
-targets += $(DOCBOOKS)
-BOOKS := $(addprefix $(obj)/,$(DOCBOOKS))
-xmldocs: $(BOOKS)
-sgmldocs: xmldocs
-
-PS := $(patsubst %.xml, %.ps, $(BOOKS))
-psdocs: $(PS)
-
-PDF := $(patsubst %.xml, %.pdf, $(BOOKS))
-pdfdocs: $(PDF)
-
-HTML := $(sort $(patsubst %.xml, %.html, $(BOOKS)))
-htmldocs: $(HTML)
- $(call cmd,build_main_index)
-
-MAN := $(patsubst %.xml, %.9, $(BOOKS))
-mandocs: $(MAN)
- find $(obj)/man -name '*.9' | xargs gzip -nf
-
-# Default location for installed man pages
-export INSTALL_MAN_PATH = $(objtree)/usr
-
-installmandocs: mandocs
- mkdir -p $(INSTALL_MAN_PATH)/man/man9/
- find $(obj)/man -name '*.9.gz' -printf '%h %f\n' | \
- sort -k 2 -k 1 | uniq -f 1 | sed -e 's: :/:' | \
- xargs install -m 644 -t $(INSTALL_MAN_PATH)/man/man9/
-
-# no-op for the DocBook toolchain
-epubdocs:
-latexdocs:
-linkcheckdocs:
-
-###
-#External programs used
-KERNELDOCXMLREF = $(srctree)/scripts/kernel-doc-xml-ref
-KERNELDOC = $(srctree)/scripts/kernel-doc
-DOCPROC = $(objtree)/scripts/docproc
-CHECK_LC_CTYPE = $(objtree)/scripts/check-lc_ctype
-
-# Use a fixed encoding - UTF-8 if the C library has support built-in
-# or ASCII if not
-LC_CTYPE := $(call try-run, LC_CTYPE=C.UTF-8 $(CHECK_LC_CTYPE),C.UTF-8,C)
-export LC_CTYPE
-
-XMLTOFLAGS = -m $(srctree)/$(src)/stylesheet.xsl
-XMLTOFLAGS += --skip-validation
-
-###
-# DOCPROC is used for two purposes:
-# 1) To generate a dependency list for a .tmpl file
-# 2) To preprocess a .tmpl file and call kernel-doc with
-# appropriate parameters.
-# The following rules are used to generate the .xml documentation
-# required to generate the final targets. (ps, pdf, html).
-quiet_cmd_docproc = DOCPROC $@
- cmd_docproc = SRCTREE=$(srctree)/ $(DOCPROC) doc $< >$@
-define rule_docproc
- set -e; \
- $(if $($(quiet)cmd_$(1)),echo ' $($(quiet)cmd_$(1))';) \
- $(cmd_$(1)); \
- ( \
- echo 'cmd_$@ := $(cmd_$(1))'; \
- echo $@: `SRCTREE=$(srctree) $(DOCPROC) depend $<`; \
- ) > $(dir $@).$(notdir $@).cmd
-endef
-
-%.xml: %.tmpl $(KERNELDOC) $(DOCPROC) $(KERNELDOCXMLREF) FORCE
- $(call if_changed_rule,docproc)
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
-
-notfoundtemplate = echo "*** You have to install docbook-utils or xmlto ***"; \
- exit 1
-db2xtemplate = db2TYPE -o $(dir $@) $<
-xmltotemplate = xmlto TYPE $(XMLTOFLAGS) -o $(dir $@) $<
-
-# determine which methods are available
-ifeq ($(shell which db2ps >/dev/null 2>&1 && echo found),found)
- use-db2x = db2x
- prefer-db2x = db2x
-else
- use-db2x = notfound
- prefer-db2x = $(use-xmlto)
-endif
-ifeq ($(shell which xmlto >/dev/null 2>&1 && echo found),found)
- use-xmlto = xmlto
- prefer-xmlto = xmlto
-else
- use-xmlto = notfound
- prefer-xmlto = $(use-db2x)
-endif
-
-# the commands, generated from the chosen template
-quiet_cmd_db2ps = PS $@
- cmd_db2ps = $(subst TYPE,ps, $($(PS_METHOD)template))
-%.ps : %.xml
- $(call cmd,db2ps)
-
-quiet_cmd_db2pdf = PDF $@
- cmd_db2pdf = $(subst TYPE,pdf, $($(PDF_METHOD)template))
-%.pdf : %.xml
- $(call cmd,db2pdf)
-
-
-index = index.html
-main_idx = $(obj)/$(index)
-quiet_cmd_build_main_index = HTML $(main_idx)
- cmd_build_main_index = rm -rf $(main_idx); \
- echo '<h1>Linux Kernel HTML Documentation</h1>' >> $(main_idx) && \
- echo '<h2>Kernel Version: $(KERNELVERSION)</h2>' >> $(main_idx) && \
- cat $(HTML) >> $(main_idx)
-
-quiet_cmd_db2html = HTML $@
- cmd_db2html = xmlto html $(XMLTOFLAGS) -o $(patsubst %.html,%,$@) $< && \
- echo '<a HREF="$(patsubst %.html,%,$(notdir $@))/index.html"> \
- $(patsubst %.html,%,$(notdir $@))</a><p>' > $@
-
-###
-# Rules to create an aux XML and .db, and use them to re-process the DocBook XML
-# to fill internal hyperlinks
- gen_aux_xml = :
- quiet_gen_aux_xml = echo ' XMLREF $@'
-silent_gen_aux_xml = :
-%.aux.xml: %.xml
- @$($(quiet)gen_aux_xml)
- @rm -rf $@
- @(cat $< | egrep "^<refentry id" | egrep -o "\".*\"" | cut -f 2 -d \" > $<.db)
- @$(KERNELDOCXMLREF) -db $<.db $< > $@
-.PRECIOUS: %.aux.xml
-
-%.html: %.aux.xml
- @(which xmlto > /dev/null 2>&1) || \
- (echo "*** You need to install xmlto ***"; \
- exit 1)
- @rm -rf $@ $(patsubst %.html,%,$@)
- $(call cmd,db2html)
- @if [ ! -z "$(PNG-$(basename $(notdir $@)))" ]; then \
- cp $(PNG-$(basename $(notdir $@))) $(patsubst %.html,%,$@); fi
-
-quiet_cmd_db2man = MAN $@
- cmd_db2man = if grep -q refentry $<; then xmlto man $(XMLTOFLAGS) -o $(obj)/man/$(*F) $< ; fi
-%.9 : %.xml
- @(which xmlto > /dev/null 2>&1) || \
- (echo "*** You need to install xmlto ***"; \
- exit 1)
- $(Q)mkdir -p $(obj)/man/$(*F)
- $(call cmd,db2man)
- @touch $@
-
-###
-# Rules to generate postscripts and PNG images from .fig format files
-quiet_cmd_fig2eps = FIG2EPS $@
- cmd_fig2eps = fig2dev -Leps $< $@
-
-%.eps: %.fig
- @(which fig2dev > /dev/null 2>&1) || \
- (echo "*** You need to install transfig ***"; \
- exit 1)
- $(call cmd,fig2eps)
-
-quiet_cmd_fig2png = FIG2PNG $@
- cmd_fig2png = fig2dev -Lpng $< $@
-
-%.png: %.fig
- @(which fig2dev > /dev/null 2>&1) || \
- (echo "*** You need to install transfig ***"; \
- exit 1)
- $(call cmd,fig2png)
-
-###
-# Rule to convert a .c file to inline XML documentation
- gen_xml = :
- quiet_gen_xml = echo ' GEN $@'
-silent_gen_xml = :
-%.xml: %.c
- @$($(quiet)gen_xml)
- @( \
- echo "<programlisting>"; \
- expand --tabs=8 < $< | \
- sed -e "s/&/\\&amp;/g" \
- -e "s/</\\&lt;/g" \
- -e "s/>/\\&gt;/g"; \
- echo "</programlisting>") > $@
-
-endif # DOCBOOKS=""
-endif # SPHINDIR=...
-
-###
-# Help targets as used by the top-level makefile
-dochelp:
- @echo ' Linux kernel internal documentation in different formats (DocBook):'
- @echo ' htmldocs - HTML'
- @echo ' pdfdocs - PDF'
- @echo ' psdocs - Postscript'
- @echo ' xmldocs - XML DocBook'
- @echo ' mandocs - man pages'
- @echo ' installmandocs - install man pages generated by mandocs to INSTALL_MAN_PATH'; \
- echo ' (default: $(INSTALL_MAN_PATH))'; \
- echo ''
- @echo ' cleandocs - clean all generated DocBook files'
- @echo
- @echo ' make DOCBOOKS="s1.xml s2.xml" [target] Generate only docs s1.xml s2.xml'
- @echo ' valid values for DOCBOOKS are: $(DOCBOOKS)'
- @echo
- @echo " make DOCBOOKS=\"\" [target] Don't generate docs from Docbook"
- @echo ' This is useful to generate only the ReST docs (Sphinx)'
-
-
-###
-# Temporary files left by various tools
-clean-files := $(DOCBOOKS) \
- $(patsubst %.xml, %.dvi, $(DOCBOOKS)) \
- $(patsubst %.xml, %.aux, $(DOCBOOKS)) \
- $(patsubst %.xml, %.tex, $(DOCBOOKS)) \
- $(patsubst %.xml, %.log, $(DOCBOOKS)) \
- $(patsubst %.xml, %.out, $(DOCBOOKS)) \
- $(patsubst %.xml, %.ps, $(DOCBOOKS)) \
- $(patsubst %.xml, %.pdf, $(DOCBOOKS)) \
- $(patsubst %.xml, %.html, $(DOCBOOKS)) \
- $(patsubst %.xml, %.9, $(DOCBOOKS)) \
- $(patsubst %.xml, %.aux.xml, $(DOCBOOKS)) \
- $(patsubst %.xml, %.xml.db, $(DOCBOOKS)) \
- $(patsubst %.xml, %.xml, $(DOCBOOKS)) \
- $(patsubst %.xml, .%.xml.cmd, $(DOCBOOKS)) \
- $(index)
-
-clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS)) man
-
-cleandocs:
- $(Q)rm -f $(call objectify, $(clean-files))
- $(Q)rm -rf $(call objectify, $(clean-dirs))
-
-# Declare the contents of the .PHONY variable as phony. We keep that
-# information in a variable so we can use it in if_changed and friends.
-
-.PHONY: $(PHONY)
diff --git a/Documentation/DocBook/filesystems.tmpl b/Documentation/DocBook/filesystems.tmpl
deleted file mode 100644
index 6006b6358c86..000000000000
--- a/Documentation/DocBook/filesystems.tmpl
+++ /dev/null
@@ -1,381 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
-
-<book id="Linux-filesystems-API">
- <bookinfo>
- <title>Linux Filesystems API</title>
-
- <legalnotice>
- <para>
- This documentation is free software; you can redistribute
- it and/or modify it under the terms of the GNU General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later
- version.
- </para>
-
- <para>
- This program is distributed in the hope that it will be
- useful, but WITHOUT ANY WARRANTY; without even the implied
- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- See the GNU General Public License for more details.
- </para>
-
- <para>
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- MA 02111-1307 USA
- </para>
-
- <para>
- For more details see the file COPYING in the source
- distribution of Linux.
- </para>
- </legalnotice>
- </bookinfo>
-
-<toc></toc>
-
- <chapter id="vfs">
- <title>The Linux VFS</title>
- <sect1 id="the_filesystem_types"><title>The Filesystem types</title>
-!Iinclude/linux/fs.h
- </sect1>
- <sect1 id="the_directory_cache"><title>The Directory Cache</title>
-!Efs/dcache.c
-!Iinclude/linux/dcache.h
- </sect1>
- <sect1 id="inode_handling"><title>Inode Handling</title>
-!Efs/inode.c
-!Efs/bad_inode.c
- </sect1>
- <sect1 id="registration_and_superblocks"><title>Registration and Superblocks</title>
-!Efs/super.c
- </sect1>
- <sect1 id="file_locks"><title>File Locks</title>
-!Efs/locks.c
-!Ifs/locks.c
- </sect1>
- <sect1 id="other_functions"><title>Other Functions</title>
-!Efs/mpage.c
-!Efs/namei.c
-!Efs/buffer.c
-!Eblock/bio.c
-!Efs/seq_file.c
-!Efs/filesystems.c
-!Efs/fs-writeback.c
-!Efs/block_dev.c
- </sect1>
- </chapter>
-
- <chapter id="proc">
- <title>The proc filesystem</title>
-
- <sect1 id="sysctl_interface"><title>sysctl interface</title>
-!Ekernel/sysctl.c
- </sect1>
-
- <sect1 id="proc_filesystem_interface"><title>proc filesystem interface</title>
-!Ifs/proc/base.c
- </sect1>
- </chapter>
-
- <chapter id="fs_events">
- <title>Events based on file descriptors</title>
-!Efs/eventfd.c
- </chapter>
-
- <chapter id="sysfs">
- <title>The Filesystem for Exporting Kernel Objects</title>
-!Efs/sysfs/file.c
-!Efs/sysfs/symlink.c
- </chapter>
-
- <chapter id="debugfs">
- <title>The debugfs filesystem</title>
-
- <sect1 id="debugfs_interface"><title>debugfs interface</title>
-!Efs/debugfs/inode.c
-!Efs/debugfs/file.c
- </sect1>
- </chapter>
-
- <chapter id="LinuxJDBAPI">
- <chapterinfo>
- <title>The Linux Journalling API</title>
-
- <authorgroup>
- <author>
- <firstname>Roger</firstname>
- <surname>Gammans</surname>
- <affiliation>
- <address>
- <email>rgammans@computer-surgery.co.uk</email>
- </address>
- </affiliation>
- </author>
- </authorgroup>
-
- <authorgroup>
- <author>
- <firstname>Stephen</firstname>
- <surname>Tweedie</surname>
- <affiliation>
- <address>
- <email>sct@redhat.com</email>
- </address>
- </affiliation>
- </author>
- </authorgroup>
-
- <copyright>
- <year>2002</year>
- <holder>Roger Gammans</holder>
- </copyright>
- </chapterinfo>
-
- <title>The Linux Journalling API</title>
-
- <sect1 id="journaling_overview">
- <title>Overview</title>
- <sect2 id="journaling_details">
- <title>Details</title>
-<para>
-The journalling layer is easy to use. You need to
-first of all create a journal_t data structure. There are
-two calls to do this dependent on how you decide to allocate the physical
-media on which the journal resides. The jbd2_journal_init_inode() call
-is for journals stored in filesystem inodes, or the jbd2_journal_init_dev()
-call can be used for journal stored on a raw device (in a continuous range
-of blocks). A journal_t is a typedef for a struct pointer, so when
-you are finally finished make sure you call jbd2_journal_destroy() on it
-to free up any used kernel memory.
-</para>
-
-<para>
-Once you have got your journal_t object you need to 'mount' or load the journal
-file. The journalling layer expects the space for the journal was already
-allocated and initialized properly by the userspace tools. When loading the
-journal you must call jbd2_journal_load() to process journal contents. If the
-client file system detects the journal contents does not need to be processed
-(or even need not have valid contents), it may call jbd2_journal_wipe() to
-clear the journal contents before calling jbd2_journal_load().
-</para>
-
-<para>
-Note that jbd2_journal_wipe(..,0) calls jbd2_journal_skip_recovery() for you if
-it detects any outstanding transactions in the journal and similarly
-jbd2_journal_load() will call jbd2_journal_recover() if necessary. I would
-advise reading ext4_load_journal() in fs/ext4/super.c for examples on this
-stage.
-</para>
-
-<para>
-Now you can go ahead and start modifying the underlying
-filesystem. Almost.
-</para>
-
-<para>
-
-You still need to actually journal your filesystem changes, this
-is done by wrapping them into transactions. Additionally you
-also need to wrap the modification of each of the buffers
-with calls to the journal layer, so it knows what the modifications
-you are actually making are. To do this use jbd2_journal_start() which
-returns a transaction handle.
-</para>
-
-<para>
-jbd2_journal_start()
-and its counterpart jbd2_journal_stop(), which indicates the end of a
-transaction are nestable calls, so you can reenter a transaction if necessary,
-but remember you must call jbd2_journal_stop() the same number of times as
-jbd2_journal_start() before the transaction is completed (or more accurately
-leaves the update phase). Ext4/VFS makes use of this feature to simplify
-handling of inode dirtying, quota support, etc.
-</para>
-
-<para>
-Inside each transaction you need to wrap the modifications to the
-individual buffers (blocks). Before you start to modify a buffer you
-need to call jbd2_journal_get_{create,write,undo}_access() as appropriate,
-this allows the journalling layer to copy the unmodified data if it
-needs to. After all the buffer may be part of a previously uncommitted
-transaction.
-At this point you are at last ready to modify a buffer, and once
-you are have done so you need to call jbd2_journal_dirty_{meta,}data().
-Or if you've asked for access to a buffer you now know is now longer
-required to be pushed back on the device you can call jbd2_journal_forget()
-in much the same way as you might have used bforget() in the past.
-</para>
-
-<para>
-A jbd2_journal_flush() may be called at any time to commit and checkpoint
-all your transactions.
-</para>
-
-<para>
-Then at umount time , in your put_super() you can then call jbd2_journal_destroy()
-to clean up your in-core journal object.
-</para>
-
-<para>
-Unfortunately there a couple of ways the journal layer can cause a deadlock.
-The first thing to note is that each task can only have
-a single outstanding transaction at any one time, remember nothing
-commits until the outermost jbd2_journal_stop(). This means
-you must complete the transaction at the end of each file/inode/address
-etc. operation you perform, so that the journalling system isn't re-entered
-on another journal. Since transactions can't be nested/batched
-across differing journals, and another filesystem other than
-yours (say ext4) may be modified in a later syscall.
-</para>
-
-<para>
-The second case to bear in mind is that jbd2_journal_start() can
-block if there isn't enough space in the journal for your transaction
-(based on the passed nblocks param) - when it blocks it merely(!) needs to
-wait for transactions to complete and be committed from other tasks,
-so essentially we are waiting for jbd2_journal_stop(). So to avoid
-deadlocks you must treat jbd2_journal_start/stop() as if they
-were semaphores and include them in your semaphore ordering rules to prevent
-deadlocks. Note that jbd2_journal_extend() has similar blocking behaviour to
-jbd2_journal_start() so you can deadlock here just as easily as on
-jbd2_journal_start().
-</para>
-
-<para>
-Try to reserve the right number of blocks the first time. ;-). This will
-be the maximum number of blocks you are going to touch in this transaction.
-I advise having a look at at least ext4_jbd.h to see the basis on which
-ext4 uses to make these decisions.
-</para>
-
-<para>
-Another wriggle to watch out for is your on-disk block allocation strategy.
-Why? Because, if you do a delete, you need to ensure you haven't reused any
-of the freed blocks until the transaction freeing these blocks commits. If you
-reused these blocks and crash happens, there is no way to restore the contents
-of the reallocated blocks at the end of the last fully committed transaction.
-
-One simple way of doing this is to mark blocks as free in internal in-memory
-block allocation structures only after the transaction freeing them commits.
-Ext4 uses journal commit callback for this purpose.
-</para>
-
-<para>
-With journal commit callbacks you can ask the journalling layer to call a
-callback function when the transaction is finally committed to disk, so that
-you can do some of your own management. You ask the journalling layer for
-calling the callback by simply setting journal->j_commit_callback function
-pointer and that function is called after each transaction commit. You can also
-use transaction->t_private_list for attaching entries to a transaction that
-need processing when the transaction commits.
-</para>
-
-<para>
-JBD2 also provides a way to block all transaction updates via
-jbd2_journal_{un,}lock_updates(). Ext4 uses this when it wants a window with a
-clean and stable fs for a moment. E.g.
-</para>
-
-<programlisting>
-
- jbd2_journal_lock_updates() //stop new stuff happening..
- jbd2_journal_flush() // checkpoint everything.
- ..do stuff on stable fs
- jbd2_journal_unlock_updates() // carry on with filesystem use.
-</programlisting>
-
-<para>
-The opportunities for abuse and DOS attacks with this should be obvious,
-if you allow unprivileged userspace to trigger codepaths containing these
-calls.
-</para>
-
- </sect2>
-
- <sect2 id="jbd_summary">
- <title>Summary</title>
-<para>
-Using the journal is a matter of wrapping the different context changes,
-being each mount, each modification (transaction) and each changed buffer
-to tell the journalling layer about them.
-</para>
-
- </sect2>
-
- </sect1>
-
- <sect1 id="data_types">
- <title>Data Types</title>
- <para>
- The journalling layer uses typedefs to 'hide' the concrete definitions
- of the structures used. As a client of the JBD2 layer you can
- just rely on the using the pointer as a magic cookie of some sort.
-
- Obviously the hiding is not enforced as this is 'C'.
- </para>
- <sect2 id="structures"><title>Structures</title>
-!Iinclude/linux/jbd2.h
- </sect2>
- </sect1>
-
- <sect1 id="functions">
- <title>Functions</title>
- <para>
- The functions here are split into two groups those that
- affect a journal as a whole, and those which are used to
- manage transactions
- </para>
- <sect2 id="journal_level"><title>Journal Level</title>
-!Efs/jbd2/journal.c
-!Ifs/jbd2/recovery.c
- </sect2>
- <sect2 id="transaction_level"><title>Transasction Level</title>
-!Efs/jbd2/transaction.c
- </sect2>
- </sect1>
- <sect1 id="see_also">
- <title>See also</title>
- <para>
- <citation>
- <ulink url="http://kernel.org/pub/linux/kernel/people/sct/ext3/journal-design.ps.gz">
- Journaling the Linux ext2fs Filesystem, LinuxExpo 98, Stephen Tweedie
- </ulink>
- </citation>
- </para>
- <para>
- <citation>
- <ulink url="http://olstrans.sourceforge.net/release/OLS2000-ext3/OLS2000-ext3.html">
- Ext3 Journalling FileSystem, OLS 2000, Dr. Stephen Tweedie
- </ulink>
- </citation>
- </para>
- </sect1>
-
- </chapter>
-
- <chapter id="splice">
- <title>splice API</title>
- <para>
- splice is a method for moving blocks of data around inside the
- kernel, without continually transferring them between the kernel
- and user space.
- </para>
-!Ffs/splice.c
- </chapter>
-
- <chapter id="pipes">
- <title>pipes API</title>
- <para>
- Pipe interfaces are all for in-kernel (builtin image) use.
- They are not exported for use by modules.
- </para>
-!Iinclude/linux/pipe_fs_i.h
-!Ffs/pipe.c
- </chapter>
-
-</book>
diff --git a/Documentation/DocBook/kernel-hacking.tmpl b/Documentation/DocBook/kernel-hacking.tmpl
deleted file mode 100644
index da5c087462b1..000000000000
--- a/Documentation/DocBook/kernel-hacking.tmpl
+++ /dev/null
@@ -1,1312 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
-
-<book id="lk-hacking-guide">
- <bookinfo>
- <title>Unreliable Guide To Hacking The Linux Kernel</title>
-
- <authorgroup>
- <author>
- <firstname>Rusty</firstname>
- <surname>Russell</surname>
- <affiliation>
- <address>
- <email>rusty@rustcorp.com.au</email>
- </address>
- </affiliation>
- </author>
- </authorgroup>
-
- <copyright>
- <year>2005</year>
- <holder>Rusty Russell</holder>
- </copyright>
-
- <legalnotice>
- <para>
- This documentation is free software; you can redistribute
- it and/or modify it under the terms of the GNU General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later
- version.
- </para>
-
- <para>
- This program is distributed in the hope that it will be
- useful, but WITHOUT ANY WARRANTY; without even the implied
- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- See the GNU General Public License for more details.
- </para>
-
- <para>
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- MA 02111-1307 USA
- </para>
-
- <para>
- For more details see the file COPYING in the source
- distribution of Linux.
- </para>
- </legalnotice>
-
- <releaseinfo>
- This is the first release of this document as part of the kernel tarball.
- </releaseinfo>
-
- </bookinfo>
-
- <toc></toc>
-
- <chapter id="introduction">
- <title>Introduction</title>
- <para>
- Welcome, gentle reader, to Rusty's Remarkably Unreliable Guide to Linux
- Kernel Hacking. This document describes the common routines and
- general requirements for kernel code: its goal is to serve as a
- primer for Linux kernel development for experienced C
- programmers. I avoid implementation details: that's what the
- code is for, and I ignore whole tracts of useful routines.
- </para>
- <para>
- Before you read this, please understand that I never wanted to
- write this document, being grossly under-qualified, but I always
- wanted to read it, and this was the only way. I hope it will
- grow into a compendium of best practice, common starting points
- and random information.
- </para>
- </chapter>
-
- <chapter id="basic-players">
- <title>The Players</title>
-
- <para>
- At any time each of the CPUs in a system can be:
- </para>
-
- <itemizedlist>
- <listitem>
- <para>
- not associated with any process, serving a hardware interrupt;
- </para>
- </listitem>
-
- <listitem>
- <para>
- not associated with any process, serving a softirq or tasklet;
- </para>
- </listitem>
-
- <listitem>
- <para>
- running in kernel space, associated with a process (user context);
- </para>
- </listitem>
-
- <listitem>
- <para>
- running a process in user space.
- </para>
- </listitem>
- </itemizedlist>
-
- <para>
- There is an ordering between these. The bottom two can preempt
- each other, but above that is a strict hierarchy: each can only be
- preempted by the ones above it. For example, while a softirq is
- running on a CPU, no other softirq will preempt it, but a hardware
- interrupt can. However, any other CPUs in the system execute
- independently.
- </para>
-
- <para>
- We'll see a number of ways that the user context can block
- interrupts, to become truly non-preemptable.
- </para>
-
- <sect1 id="basics-usercontext">
- <title>User Context</title>
-
- <para>
- User context is when you are coming in from a system call or other
- trap: like userspace, you can be preempted by more important tasks
- and by interrupts. You can sleep, by calling
- <function>schedule()</function>.
- </para>
-
- <note>
- <para>
- You are always in user context on module load and unload,
- and on operations on the block device layer.
- </para>
- </note>
-
- <para>
- In user context, the <varname>current</varname> pointer (indicating
- the task we are currently executing) is valid, and
- <function>in_interrupt()</function>
- (<filename>include/linux/interrupt.h</filename>) is <returnvalue>false
- </returnvalue>.
- </para>
-
- <caution>
- <para>
- Beware that if you have preemption or softirqs disabled
- (see below), <function>in_interrupt()</function> will return a
- false positive.
- </para>
- </caution>
- </sect1>
-
- <sect1 id="basics-hardirqs">
- <title>Hardware Interrupts (Hard IRQs)</title>
-
- <para>
- Timer ticks, <hardware>network cards</hardware> and
- <hardware>keyboard</hardware> are examples of real
- hardware which produce interrupts at any time. The kernel runs
- interrupt handlers, which services the hardware. The kernel
- guarantees that this handler is never re-entered: if the same
- interrupt arrives, it is queued (or dropped). Because it
- disables interrupts, this handler has to be fast: frequently it
- simply acknowledges the interrupt, marks a 'software interrupt'
- for execution and exits.
- </para>
-
- <para>
- You can tell you are in a hardware interrupt, because
- <function>in_irq()</function> returns <returnvalue>true</returnvalue>.
- </para>
- <caution>
- <para>
- Beware that this will return a false positive if interrupts are disabled
- (see below).
- </para>
- </caution>
- </sect1>
-
- <sect1 id="basics-softirqs">
- <title>Software Interrupt Context: Softirqs and Tasklets</title>
-
- <para>
- Whenever a system call is about to return to userspace, or a
- hardware interrupt handler exits, any 'software interrupts'
- which are marked pending (usually by hardware interrupts) are
- run (<filename>kernel/softirq.c</filename>).
- </para>
-
- <para>
- Much of the real interrupt handling work is done here. Early in
- the transition to <acronym>SMP</acronym>, there were only 'bottom
- halves' (BHs), which didn't take advantage of multiple CPUs. Shortly
- after we switched from wind-up computers made of match-sticks and snot,
- we abandoned this limitation and switched to 'softirqs'.
- </para>
-
- <para>
- <filename class="headerfile">include/linux/interrupt.h</filename> lists the
- different softirqs. A very important softirq is the
- timer softirq (<filename
- class="headerfile">include/linux/timer.h</filename>): you can
- register to have it call functions for you in a given length of
- time.
- </para>
-
- <para>
- Softirqs are often a pain to deal with, since the same softirq
- will run simultaneously on more than one CPU. For this reason,
- tasklets (<filename
- class="headerfile">include/linux/interrupt.h</filename>) are more
- often used: they are dynamically-registrable (meaning you can have
- as many as you want), and they also guarantee that any tasklet
- will only run on one CPU at any time, although different tasklets
- can run simultaneously.
- </para>
- <caution>
- <para>
- The name 'tasklet' is misleading: they have nothing to do with 'tasks',
- and probably more to do with some bad vodka Alexey Kuznetsov had at the
- time.
- </para>
- </caution>
-
- <para>
- You can tell you are in a softirq (or tasklet)
- using the <function>in_softirq()</function> macro
- (<filename class="headerfile">include/linux/interrupt.h</filename>).
- </para>
- <caution>
- <para>
- Beware that this will return a false positive if a bh lock (see below)
- is held.
- </para>
- </caution>
- </sect1>
- </chapter>
-
- <chapter id="basic-rules">
- <title>Some Basic Rules</title>
-
- <variablelist>
- <varlistentry>
- <term>No memory protection</term>
- <listitem>
- <para>
- If you corrupt memory, whether in user context or
- interrupt context, the whole machine will crash. Are you
- sure you can't do what you want in userspace?
- </para>
- </listitem>
- </varlistentry>
-
- <varlistentry>
- <term>No floating point or <acronym>MMX</acronym></term>
- <listitem>
- <para>
- The <acronym>FPU</acronym> context is not saved; even in user
- context the <acronym>FPU</acronym> state probably won't
- correspond with the current process: you would mess with some
- user process' <acronym>FPU</acronym> state. If you really want
- to do this, you would have to explicitly save/restore the full
- <acronym>FPU</acronym> state (and avoid context switches). It
- is generally a bad idea; use fixed point arithmetic first.
- </para>
- </listitem>
- </varlistentry>
-
- <varlistentry>
- <term>A rigid stack limit</term>
- <listitem>
- <para>
- Depending on configuration options the kernel stack is about 3K to 6K for most 32-bit architectures: it's
- about 14K on most 64-bit archs, and often shared with interrupts
- so you can't use it all. Avoid deep recursion and huge local
- arrays on the stack (allocate them dynamically instead).
- </para>
- </listitem>
- </varlistentry>
-
- <varlistentry>
- <term>The Linux kernel is portable</term>
- <listitem>
- <para>
- Let's keep it that way. Your code should be 64-bit clean,
- and endian-independent. You should also minimize CPU
- specific stuff, e.g. inline assembly should be cleanly
- encapsulated and minimized to ease porting. Generally it
- should be restricted to the architecture-dependent part of
- the kernel tree.
- </para>
- </listitem>
- </varlistentry>
- </variablelist>
- </chapter>
-
- <chapter id="ioctls">
- <title>ioctls: Not writing a new system call</title>
-
- <para>
- A system call generally looks like this
- </para>
-
- <programlisting>
-asmlinkage long sys_mycall(int arg)
-{
- return 0;
-}
- </programlisting>
-
- <para>
- First, in most cases you don't want to create a new system call.
- You create a character device and implement an appropriate ioctl
- for it. This is much more flexible than system calls, doesn't have
- to be entered in every architecture's
- <filename class="headerfile">include/asm/unistd.h</filename> and
- <filename>arch/kernel/entry.S</filename> file, and is much more
- likely to be accepted by Linus.
- </para>
-
- <para>
- If all your routine does is read or write some parameter, consider
- implementing a <function>sysfs</function> interface instead.
- </para>
-
- <para>
- Inside the ioctl you're in user context to a process. When a
- error occurs you return a negated errno (see
- <filename class="headerfile">include/linux/errno.h</filename>),
- otherwise you return <returnvalue>0</returnvalue>.
- </para>
-
- <para>
- After you slept you should check if a signal occurred: the
- Unix/Linux way of handling signals is to temporarily exit the
- system call with the <constant>-ERESTARTSYS</constant> error. The
- system call entry code will switch back to user context, process
- the signal handler and then your system call will be restarted
- (unless the user disabled that). So you should be prepared to
- process the restart, e.g. if you're in the middle of manipulating
- some data structure.
- </para>
-
- <programlisting>
-if (signal_pending(current))
- return -ERESTARTSYS;
- </programlisting>
-
- <para>
- If you're doing longer computations: first think userspace. If you
- <emphasis>really</emphasis> want to do it in kernel you should
- regularly check if you need to give up the CPU (remember there is
- cooperative multitasking per CPU). Idiom:
- </para>
-
- <programlisting>
-cond_resched(); /* Will sleep */
- </programlisting>
-
- <para>
- A short note on interface design: the UNIX system call motto is
- "Provide mechanism not policy".
- </para>
- </chapter>
-
- <chapter id="deadlock-recipes">
- <title>Recipes for Deadlock</title>
-
- <para>
- You cannot call any routines which may sleep, unless:
- </para>
- <itemizedlist>
- <listitem>
- <para>
- You are in user context.
- </para>
- </listitem>
-
- <listitem>
- <para>
- You do not own any spinlocks.
- </para>
- </listitem>
-
- <listitem>
- <para>
- You have interrupts enabled (actually, Andi Kleen says
- that the scheduling code will enable them for you, but
- that's probably not what you wanted).
- </para>
- </listitem>
- </itemizedlist>
-
- <para>
- Note that some functions may sleep implicitly: common ones are
- the user space access functions (*_user) and memory allocation
- functions without <symbol>GFP_ATOMIC</symbol>.
- </para>
-
- <para>
- You should always compile your kernel
- <symbol>CONFIG_DEBUG_ATOMIC_SLEEP</symbol> on, and it will warn
- you if you break these rules. If you <emphasis>do</emphasis> break
- the rules, you will eventually lock up your box.
- </para>
-
- <para>
- Really.
- </para>
- </chapter>
-
- <chapter id="common-routines">
- <title>Common Routines</title>
-
- <sect1 id="routines-printk">
- <title>
- <function>printk()</function>
- <filename class="headerfile">include/linux/kernel.h</filename>
- </title>
-
- <para>
- <function>printk()</function> feeds kernel messages to the
- console, dmesg, and the syslog daemon. It is useful for debugging
- and reporting errors, and can be used inside interrupt context,
- but use with caution: a machine which has its console flooded with
- printk messages is unusable. It uses a format string mostly
- compatible with ANSI C printf, and C string concatenation to give
- it a first "priority" argument:
- </para>
-
- <programlisting>
-printk(KERN_INFO "i = %u\n", i);
- </programlisting>
-
- <para>
- See <filename class="headerfile">include/linux/kernel.h</filename>;
- for other KERN_ values; these are interpreted by syslog as the
- level. Special case: for printing an IP address use
- </para>
-
- <programlisting>
-__be32 ipaddress;
-printk(KERN_INFO "my ip: %pI4\n", &amp;ipaddress);
- </programlisting>
-
- <para>
- <function>printk()</function> internally uses a 1K buffer and does
- not catch overruns. Make sure that will be enough.
- </para>
-
- <note>
- <para>
- You will know when you are a real kernel hacker
- when you start typoing printf as printk in your user programs :)
- </para>
- </note>
-
- <!--- From the Lions book reader department -->
-
- <note>
- <para>
- Another sidenote: the original Unix Version 6 sources had a
- comment on top of its printf function: "Printf should not be
- used for chit-chat". You should follow that advice.
- </para>
- </note>
- </sect1>
-
- <sect1 id="routines-copy">
- <title>
- <function>copy_[to/from]_user()</function>
- /
- <function>get_user()</function>
- /
- <function>put_user()</function>
- <filename class="headerfile">include/linux/uaccess.h</filename>
- </title>
-
- <para>
- <emphasis>[SLEEPS]</emphasis>
- </para>
-
- <para>
- <function>put_user()</function> and <function>get_user()</function>
- are used to get and put single values (such as an int, char, or
- long) from and to userspace. A pointer into userspace should
- never be simply dereferenced: data should be copied using these
- routines. Both return <constant>-EFAULT</constant> or 0.
- </para>
- <para>
- <function>copy_to_user()</function> and
- <function>copy_from_user()</function> are more general: they copy
- an arbitrary amount of data to and from userspace.
- <caution>
- <para>
- Unlike <function>put_user()</function> and
- <function>get_user()</function>, they return the amount of
- uncopied data (ie. <returnvalue>0</returnvalue> still means
- success).
- </para>
- </caution>
- [Yes, this moronic interface makes me cringe. The flamewar comes up every year or so. --RR.]
- </para>
- <para>
- The functions may sleep implicitly. This should never be called
- outside user context (it makes no sense), with interrupts
- disabled, or a spinlock held.
- </para>
- </sect1>
-
- <sect1 id="routines-kmalloc">
- <title><function>kmalloc()</function>/<function>kfree()</function>
- <filename class="headerfile">include/linux/slab.h</filename></title>
-
- <para>
- <emphasis>[MAY SLEEP: SEE BELOW]</emphasis>
- </para>
-
- <para>
- These routines are used to dynamically request pointer-aligned
- chunks of memory, like malloc and free do in userspace, but
- <function>kmalloc()</function> takes an extra flag word.
- Important values:
- </para>
-
- <variablelist>
- <varlistentry>
- <term>
- <constant>
- GFP_KERNEL
- </constant>
- </term>
- <listitem>
- <para>
- May sleep and swap to free memory. Only allowed in user
- context, but is the most reliable way to allocate memory.
- </para>
- </listitem>
- </varlistentry>
-
- <varlistentry>
- <term>
- <constant>
- GFP_ATOMIC
- </constant>
- </term>
- <listitem>
- <para>
- Don't sleep. Less reliable than <constant>GFP_KERNEL</constant>,
- but may be called from interrupt context. You should
- <emphasis>really</emphasis> have a good out-of-memory
- error-handling strategy.
- </para>
- </listitem>
- </varlistentry>
-
- <varlistentry>
- <term>
- <constant>
- GFP_DMA
- </constant>
- </term>
- <listitem>
- <para>
- Allocate ISA DMA lower than 16MB. If you don't know what that
- is you don't need it. Very unreliable.
- </para>
- </listitem>
- </varlistentry>
- </variablelist>
-
- <para>
- If you see a <errorname>sleeping function called from invalid
- context</errorname> warning message, then maybe you called a
- sleeping allocation function from interrupt context without
- <constant>GFP_ATOMIC</constant>. You should really fix that.
- Run, don't walk.
- </para>
-
- <para>
- If you are allocating at least <constant>PAGE_SIZE</constant>
- (<filename class="headerfile">include/asm/page.h</filename>) bytes,
- consider using <function>__get_free_pages()</function>
-
- (<filename class="headerfile">include/linux/mm.h</filename>). It
- takes an order argument (0 for page sized, 1 for double page, 2
- for four pages etc.) and the same memory priority flag word as
- above.
- </para>
-
- <para>
- If you are allocating more than a page worth of bytes you can use
- <function>vmalloc()</function>. It'll allocate virtual memory in
- the kernel map. This block is not contiguous in physical memory,
- but the <acronym>MMU</acronym> makes it look like it is for you
- (so it'll only look contiguous to the CPUs, not to external device
- drivers). If you really need large physically contiguous memory
- for some weird device, you have a problem: it is poorly supported
- in Linux because after some time memory fragmentation in a running
- kernel makes it hard. The best way is to allocate the block early
- in the boot process via the <function>alloc_bootmem()</function>
- routine.
- </para>
-
- <para>
- Before inventing your own cache of often-used objects consider
- using a slab cache in
- <filename class="headerfile">include/linux/slab.h</filename>
- </para>
- </sect1>
-
- <sect1 id="routines-current">
- <title><function>current</function>
- <filename class="headerfile">include/asm/current.h</filename></title>
-
- <para>
- This global variable (really a macro) contains a pointer to
- the current task structure, so is only valid in user context.
- For example, when a process makes a system call, this will
- point to the task structure of the calling process. It is
- <emphasis>not NULL</emphasis> in interrupt context.
- </para>
- </sect1>
-
- <sect1 id="routines-udelay">
- <title><function>mdelay()</function>/<function>udelay()</function>
- <filename class="headerfile">include/asm/delay.h</filename>
- <filename class="headerfile">include/linux/delay.h</filename>
- </title>
-
- <para>
- The <function>udelay()</function> and <function>ndelay()</function> functions can be used for small pauses.
- Do not use large values with them as you risk
- overflow - the helper function <function>mdelay()</function> is useful
- here, or consider <function>msleep()</function>.
- </para>
- </sect1>
-
- <sect1 id="routines-endian">
- <title><function>cpu_to_be32()</function>/<function>be32_to_cpu()</function>/<function>cpu_to_le32()</function>/<function>le32_to_cpu()</function>
- <filename class="headerfile">include/asm/byteorder.h</filename>
- </title>
-
- <para>
- The <function>cpu_to_be32()</function> family (where the "32" can
- be replaced by 64 or 16, and the "be" can be replaced by "le") are
- the general way to do endian conversions in the kernel: they
- return the converted value. All variations supply the reverse as
- well: <function>be32_to_cpu()</function>, etc.
- </para>
-
- <para>
- There are two major variations of these functions: the pointer
- variation, such as <function>cpu_to_be32p()</function>, which take
- a pointer to the given type, and return the converted value. The
- other variation is the "in-situ" family, such as
- <function>cpu_to_be32s()</function>, which convert value referred
- to by the pointer, and return void.
- </para>
- </sect1>
-
- <sect1 id="routines-local-irqs">
- <title><function>local_irq_save()</function>/<function>local_irq_restore()</function>
- <filename class="headerfile">include/linux/irqflags.h</filename>
- </title>
-
- <para>
- These routines disable hard interrupts on the local CPU, and
- restore them. They are reentrant; saving the previous state in
- their one <varname>unsigned long flags</varname> argument. If you
- know that interrupts are enabled, you can simply use
- <function>local_irq_disable()</function> and
- <function>local_irq_enable()</function>.
- </para>
- </sect1>
-
- <sect1 id="routines-softirqs">
- <title><function>local_bh_disable()</function>/<function>local_bh_enable()</function>
- <filename class="headerfile">include/linux/interrupt.h</filename></title>
-
- <para>
- These routines disable soft interrupts on the local CPU, and
- restore them. They are reentrant; if soft interrupts were
- disabled before, they will still be disabled after this pair
- of functions has been called. They prevent softirqs and tasklets
- from running on the current CPU.
- </para>
- </sect1>
-
- <sect1 id="routines-processorids">
- <title><function>smp_processor_id</function>()
- <filename class="headerfile">include/asm/smp.h</filename></title>
-
- <para>
- <function>get_cpu()</function> disables preemption (so you won't
- suddenly get moved to another CPU) and returns the current
- processor number, between 0 and <symbol>NR_CPUS</symbol>. Note
- that the CPU numbers are not necessarily continuous. You return
- it again with <function>put_cpu()</function> when you are done.
- </para>
- <para>
- If you know you cannot be preempted by another task (ie. you are
- in interrupt context, or have preemption disabled) you can use
- smp_processor_id().
- </para>
- </sect1>
-
- <sect1 id="routines-init">
- <title><type>__init</type>/<type>__exit</type>/<type>__initdata</type>
- <filename class="headerfile">include/linux/init.h</filename></title>
-
- <para>
- After boot, the kernel frees up a special section; functions
- marked with <type>__init</type> and data structures marked with
- <type>__initdata</type> are dropped after boot is complete: similarly
- modules discard this memory after initialization. <type>__exit</type>
- is used to declare a function which is only required on exit: the
- function will be dropped if this file is not compiled as a module.
- See the header file for use. Note that it makes no sense for a function
- marked with <type>__init</type> to be exported to modules with
- <function>EXPORT_SYMBOL()</function> - this will break.
- </para>
-
- </sect1>
-
- <sect1 id="routines-init-again">
- <title><function>__initcall()</function>/<function>module_init()</function>
- <filename class="headerfile">include/linux/init.h</filename></title>
- <para>
- Many parts of the kernel are well served as a module
- (dynamically-loadable parts of the kernel). Using the
- <function>module_init()</function> and
- <function>module_exit()</function> macros it is easy to write code
- without #ifdefs which can operate both as a module or built into
- the kernel.
- </para>
-
- <para>
- The <function>module_init()</function> macro defines which
- function is to be called at module insertion time (if the file is
- compiled as a module), or at boot time: if the file is not
- compiled as a module the <function>module_init()</function> macro
- becomes equivalent to <function>__initcall()</function>, which
- through linker magic ensures that the function is called on boot.
- </para>
-
- <para>
- The function can return a negative error number to cause
- module loading to fail (unfortunately, this has no effect if
- the module is compiled into the kernel). This function is
- called in user context with interrupts enabled, so it can sleep.
- </para>
- </sect1>
-
- <sect1 id="routines-moduleexit">
- <title> <function>module_exit()</function>
- <filename class="headerfile">include/linux/init.h</filename> </title>
-
- <para>
- This macro defines the function to be called at module removal
- time (or never, in the case of the file compiled into the
- kernel). It will only be called if the module usage count has
- reached zero. This function can also sleep, but cannot fail:
- everything must be cleaned up by the time it returns.
- </para>
-
- <para>
- Note that this macro is optional: if it is not present, your
- module will not be removable (except for 'rmmod -f').
- </para>
- </sect1>
-
- <sect1 id="routines-module-use-counters">
- <title> <function>try_module_get()</function>/<function>module_put()</function>
- <filename class="headerfile">include/linux/module.h</filename></title>
-
- <para>
- These manipulate the module usage count, to protect against
- removal (a module also can't be removed if another module uses one
- of its exported symbols: see below). Before calling into module
- code, you should call <function>try_module_get()</function> on
- that module: if it fails, then the module is being removed and you
- should act as if it wasn't there. Otherwise, you can safely enter
- the module, and call <function>module_put()</function> when you're
- finished.
- </para>
-
- <para>
- Most registerable structures have an
- <structfield>owner</structfield> field, such as in the
- <structname>file_operations</structname> structure. Set this field
- to the macro <symbol>THIS_MODULE</symbol>.
- </para>
- </sect1>
-
- <!-- add info on new-style module refcounting here -->
- </chapter>
-
- <chapter id="queues">
- <title>Wait Queues
- <filename class="headerfile">include/linux/wait.h</filename>
- </title>
- <para>
- <emphasis>[SLEEPS]</emphasis>
- </para>
-
- <para>
- A wait queue is used to wait for someone to wake you up when a
- certain condition is true. They must be used carefully to ensure
- there is no race condition. You declare a
- <type>wait_queue_head_t</type>, and then processes which want to
- wait for that condition declare a <type>wait_queue_t</type>
- referring to themselves, and place that in the queue.
- </para>
-
- <sect1 id="queue-declaring">
- <title>Declaring</title>
-
- <para>
- You declare a <type>wait_queue_head_t</type> using the
- <function>DECLARE_WAIT_QUEUE_HEAD()</function> macro, or using the
- <function>init_waitqueue_head()</function> routine in your
- initialization code.
- </para>
- </sect1>
-
- <sect1 id="queue-waitqueue">
- <title>Queuing</title>
-
- <para>
- Placing yourself in the waitqueue is fairly complex, because you
- must put yourself in the queue before checking the condition.
- There is a macro to do this:
- <function>wait_event_interruptible()</function>
-
- <filename class="headerfile">include/linux/wait.h</filename> The
- first argument is the wait queue head, and the second is an
- expression which is evaluated; the macro returns
- <returnvalue>0</returnvalue> when this expression is true, or
- <returnvalue>-ERESTARTSYS</returnvalue> if a signal is received.
- The <function>wait_event()</function> version ignores signals.
- </para>
-
- </sect1>
-
- <sect1 id="queue-waking">
- <title>Waking Up Queued Tasks</title>
-
- <para>
- Call <function>wake_up()</function>
-
- <filename class="headerfile">include/linux/wait.h</filename>;,
- which will wake up every process in the queue. The exception is
- if one has <constant>TASK_EXCLUSIVE</constant> set, in which case
- the remainder of the queue will not be woken. There are other variants
- of this basic function available in the same header.
- </para>
- </sect1>
- </chapter>
-
- <chapter id="atomic-ops">
- <title>Atomic Operations</title>
-
- <para>
- Certain operations are guaranteed atomic on all platforms. The
- first class of operations work on <type>atomic_t</type>
-
- <filename class="headerfile">include/asm/atomic.h</filename>; this
- contains a signed integer (at least 32 bits long), and you must use
- these functions to manipulate or read atomic_t variables.
- <function>atomic_read()</function> and
- <function>atomic_set()</function> get and set the counter,
- <function>atomic_add()</function>,
- <function>atomic_sub()</function>,
- <function>atomic_inc()</function>,
- <function>atomic_dec()</function>, and
- <function>atomic_dec_and_test()</function> (returns
- <returnvalue>true</returnvalue> if it was decremented to zero).
- </para>
-
- <para>
- Yes. It returns <returnvalue>true</returnvalue> (i.e. != 0) if the
- atomic variable is zero.
- </para>
-
- <para>
- Note that these functions are slower than normal arithmetic, and
- so should not be used unnecessarily.
- </para>
-
- <para>
- The second class of atomic operations is atomic bit operations on an
- <type>unsigned long</type>, defined in
-
- <filename class="headerfile">include/linux/bitops.h</filename>. These
- operations generally take a pointer to the bit pattern, and a bit
- number: 0 is the least significant bit.
- <function>set_bit()</function>, <function>clear_bit()</function>
- and <function>change_bit()</function> set, clear, and flip the
- given bit. <function>test_and_set_bit()</function>,
- <function>test_and_clear_bit()</function> and
- <function>test_and_change_bit()</function> do the same thing,
- except return true if the bit was previously set; these are
- particularly useful for atomically setting flags.
- </para>
-
- <para>
- It is possible to call these operations with bit indices greater
- than BITS_PER_LONG. The resulting behavior is strange on big-endian
- platforms though so it is a good idea not to do this.
- </para>
- </chapter>
-
- <chapter id="symbols">
- <title>Symbols</title>
-
- <para>
- Within the kernel proper, the normal linking rules apply
- (ie. unless a symbol is declared to be file scope with the
- <type>static</type> keyword, it can be used anywhere in the
- kernel). However, for modules, a special exported symbol table is
- kept which limits the entry points to the kernel proper. Modules
- can also export symbols.
- </para>
-
- <sect1 id="sym-exportsymbols">
- <title><function>EXPORT_SYMBOL()</function>
- <filename class="headerfile">include/linux/export.h</filename></title>
-
- <para>
- This is the classic method of exporting a symbol: dynamically
- loaded modules will be able to use the symbol as normal.
- </para>
- </sect1>
-
- <sect1 id="sym-exportsymbols-gpl">
- <title><function>EXPORT_SYMBOL_GPL()</function>
- <filename class="headerfile">include/linux/export.h</filename></title>
-
- <para>
- Similar to <function>EXPORT_SYMBOL()</function> except that the
- symbols exported by <function>EXPORT_SYMBOL_GPL()</function> can
- only be seen by modules with a
- <function>MODULE_LICENSE()</function> that specifies a GPL
- compatible license. It implies that the function is considered
- an internal implementation issue, and not really an interface.
- Some maintainers and developers may however
- require EXPORT_SYMBOL_GPL() when adding any new APIs or functionality.
- </para>
- </sect1>
- </chapter>
-
- <chapter id="conventions">
- <title>Routines and Conventions</title>
-
- <sect1 id="conventions-doublelinkedlist">
- <title>Double-linked lists
- <filename class="headerfile">include/linux/list.h</filename></title>
-
- <para>
- There used to be three sets of linked-list routines in the kernel
- headers, but this one is the winner. If you don't have some
- particular pressing need for a single list, it's a good choice.
- </para>
-
- <para>
- In particular, <function>list_for_each_entry</function> is useful.
- </para>
- </sect1>
-
- <sect1 id="convention-returns">
- <title>Return Conventions</title>
-
- <para>
- For code called in user context, it's very common to defy C
- convention, and return <returnvalue>0</returnvalue> for success,
- and a negative error number
- (eg. <returnvalue>-EFAULT</returnvalue>) for failure. This can be
- unintuitive at first, but it's fairly widespread in the kernel.
- </para>
-
- <para>
- Using <function>ERR_PTR()</function>
-
- <filename class="headerfile">include/linux/err.h</filename>; to
- encode a negative error number into a pointer, and
- <function>IS_ERR()</function> and <function>PTR_ERR()</function>
- to get it back out again: avoids a separate pointer parameter for
- the error number. Icky, but in a good way.
- </para>
- </sect1>
-
- <sect1 id="conventions-borkedcompile">
- <title>Breaking Compilation</title>
-
- <para>
- Linus and the other developers sometimes change function or
- structure names in development kernels; this is not done just to
- keep everyone on their toes: it reflects a fundamental change
- (eg. can no longer be called with interrupts on, or does extra
- checks, or doesn't do checks which were caught before). Usually
- this is accompanied by a fairly complete note to the linux-kernel
- mailing list; search the archive. Simply doing a global replace
- on the file usually makes things <emphasis>worse</emphasis>.
- </para>
- </sect1>
-
- <sect1 id="conventions-initialising">
- <title>Initializing structure members</title>
-
- <para>
- The preferred method of initializing structures is to use
- designated initialisers, as defined by ISO C99, eg:
- </para>
- <programlisting>
-static struct block_device_operations opt_fops = {
- .open = opt_open,
- .release = opt_release,
- .ioctl = opt_ioctl,
- .check_media_change = opt_media_change,
-};
- </programlisting>
- <para>
- This makes it easy to grep for, and makes it clear which
- structure fields are set. You should do this because it looks
- cool.
- </para>
- </sect1>
-
- <sect1 id="conventions-gnu-extns">
- <title>GNU Extensions</title>
-
- <para>
- GNU Extensions are explicitly allowed in the Linux kernel.
- Note that some of the more complex ones are not very well
- supported, due to lack of general use, but the following are
- considered standard (see the GCC info page section "C
- Extensions" for more details - Yes, really the info page, the
- man page is only a short summary of the stuff in info).
- </para>
- <itemizedlist>
- <listitem>
- <para>
- Inline functions
- </para>
- </listitem>
- <listitem>
- <para>
- Statement expressions (ie. the ({ and }) constructs).
- </para>
- </listitem>
- <listitem>
- <para>
- Declaring attributes of a function / variable / type
- (__attribute__)
- </para>
- </listitem>
- <listitem>
- <para>
- typeof
- </para>
- </listitem>
- <listitem>
- <para>
- Zero length arrays
- </para>
- </listitem>
- <listitem>
- <para>
- Macro varargs
- </para>
- </listitem>
- <listitem>
- <para>
- Arithmetic on void pointers
- </para>
- </listitem>
- <listitem>
- <para>
- Non-Constant initializers
- </para>
- </listitem>
- <listitem>
- <para>
- Assembler Instructions (not outside arch/ and include/asm/)
- </para>
- </listitem>
- <listitem>
- <para>
- Function names as strings (__func__).
- </para>
- </listitem>
- <listitem>
- <para>
- __builtin_constant_p()
- </para>
- </listitem>
- </itemizedlist>
-
- <para>
- Be wary when using long long in the kernel, the code gcc generates for
- it is horrible and worse: division and multiplication does not work
- on i386 because the GCC runtime functions for it are missing from
- the kernel environment.
- </para>
-
- <!-- FIXME: add a note about ANSI aliasing cleanness -->
- </sect1>
-
- <sect1 id="conventions-cplusplus">
- <title>C++</title>
-
- <para>
- Using C++ in the kernel is usually a bad idea, because the
- kernel does not provide the necessary runtime environment
- and the include files are not tested for it. It is still
- possible, but not recommended. If you really want to do
- this, forget about exceptions at least.
- </para>
- </sect1>
-
- <sect1 id="conventions-ifdef">
- <title>&num;if</title>
-
- <para>
- It is generally considered cleaner to use macros in header files
- (or at the top of .c files) to abstract away functions rather than
- using `#if' pre-processor statements throughout the source code.
- </para>
- </sect1>
- </chapter>
-
- <chapter id="submitting">
- <title>Putting Your Stuff in the Kernel</title>
-
- <para>
- In order to get your stuff into shape for official inclusion, or
- even to make a neat patch, there's administrative work to be
- done:
- </para>
- <itemizedlist>
- <listitem>
- <para>
- Figure out whose pond you've been pissing in. Look at the top of
- the source files, inside the <filename>MAINTAINERS</filename>
- file, and last of all in the <filename>CREDITS</filename> file.
- You should coordinate with this person to make sure you're not
- duplicating effort, or trying something that's already been
- rejected.
- </para>
-
- <para>
- Make sure you put your name and EMail address at the top of
- any files you create or mangle significantly. This is the
- first place people will look when they find a bug, or when
- <emphasis>they</emphasis> want to make a change.
- </para>
- </listitem>
-
- <listitem>
- <para>
- Usually you want a configuration option for your kernel hack.
- Edit <filename>Kconfig</filename> in the appropriate directory.
- The Config language is simple to use by cut and paste, and there's
- complete documentation in
- <filename>Documentation/kbuild/kconfig-language.txt</filename>.
- </para>
-
- <para>
- In your description of the option, make sure you address both the
- expert user and the user who knows nothing about your feature. Mention
- incompatibilities and issues here. <emphasis> Definitely
- </emphasis> end your description with <quote> if in doubt, say N
- </quote> (or, occasionally, `Y'); this is for people who have no
- idea what you are talking about.
- </para>
- </listitem>
-
- <listitem>
- <para>
- Edit the <filename>Makefile</filename>: the CONFIG variables are
- exported here so you can usually just add a "obj-$(CONFIG_xxx) +=
- xxx.o" line. The syntax is documented in
- <filename>Documentation/kbuild/makefiles.txt</filename>.
- </para>
- </listitem>
-
- <listitem>
- <para>
- Put yourself in <filename>CREDITS</filename> if you've done
- something noteworthy, usually beyond a single file (your name
- should be at the top of the source files anyway).
- <filename>MAINTAINERS</filename> means you want to be consulted
- when changes are made to a subsystem, and hear about bugs; it
- implies a more-than-passing commitment to some part of the code.
- </para>
- </listitem>
-
- <listitem>
- <para>
- Finally, don't forget to read <filename>Documentation/process/submitting-patches.rst</filename>
- and possibly <filename>Documentation/process/submitting-drivers.rst</filename>.
- </para>
- </listitem>
- </itemizedlist>
- </chapter>
-
- <chapter id="cantrips">
- <title>Kernel Cantrips</title>
-
- <para>
- Some favorites from browsing the source. Feel free to add to this
- list.
- </para>
-
- <para>
- <filename>arch/x86/include/asm/delay.h:</filename>
- </para>
- <programlisting>
-#define ndelay(n) (__builtin_constant_p(n) ? \
- ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
- __ndelay(n))
- </programlisting>
-
- <para>
- <filename>include/linux/fs.h</filename>:
- </para>
- <programlisting>
-/*
- * Kernel pointers have redundant information, so we can use a
- * scheme where we can return either an error code or a dentry
- * pointer with the same return value.
- *
- * This should be a per-architecture thing, to allow different
- * error and pointer decisions.
- */
- #define ERR_PTR(err) ((void *)((long)(err)))
- #define PTR_ERR(ptr) ((long)(ptr))
- #define IS_ERR(ptr) ((unsigned long)(ptr) > (unsigned long)(-1000))
-</programlisting>
-
- <para>
- <filename>arch/x86/include/asm/uaccess_32.h:</filename>
- </para>
-
- <programlisting>
-#define copy_to_user(to,from,n) \
- (__builtin_constant_p(n) ? \
- __constant_copy_to_user((to),(from),(n)) : \
- __generic_copy_to_user((to),(from),(n)))
- </programlisting>
-
- <para>
- <filename>arch/sparc/kernel/head.S:</filename>
- </para>
-
- <programlisting>
-/*
- * Sun people can't spell worth damn. "compatability" indeed.
- * At least we *know* we can't spell, and use a spell-checker.
- */
-
-/* Uh, actually Linus it is I who cannot spell. Too much murky
- * Sparc assembly will do this to ya.
- */
-C_LABEL(cputypvar):
- .asciz "compatibility"
-
-/* Tested on SS-5, SS-10. Probably someone at Sun applied a spell-checker. */
- .align 4
-C_LABEL(cputypvar_sun4m):
- .asciz "compatible"
- </programlisting>
-
- <para>
- <filename>arch/sparc/lib/checksum.S:</filename>
- </para>
-
- <programlisting>
- /* Sun, you just can't beat me, you just can't. Stop trying,
- * give up. I'm serious, I am going to kick the living shit
- * out of you, game over, lights out.
- */
- </programlisting>
- </chapter>
-
- <chapter id="credits">
- <title>Thanks</title>
-
- <para>
- Thanks to Andi Kleen for the idea, answering my questions, fixing
- my mistakes, filling content, etc. Philipp Rumpf for more spelling
- and clarity fixes, and some excellent non-obvious points. Werner
- Almesberger for giving me a great summary of
- <function>disable_irq()</function>, and Jes Sorensen and Andrea
- Arcangeli added caveats. Michael Elizabeth Chastain for checking
- and adding to the Configure section. <!-- Rusty insisted on this
- bit; I didn't do it! --> Telsa Gwynne for teaching me DocBook.
- </para>
- </chapter>
-</book>
-
diff --git a/Documentation/DocBook/kernel-locking.tmpl b/Documentation/DocBook/kernel-locking.tmpl
deleted file mode 100644
index 7c9cc4846cb6..000000000000
--- a/Documentation/DocBook/kernel-locking.tmpl
+++ /dev/null
@@ -1,2151 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
-
-<book id="LKLockingGuide">
- <bookinfo>
- <title>Unreliable Guide To Locking</title>
-
- <authorgroup>
- <author>
- <firstname>Rusty</firstname>
- <surname>Russell</surname>
- <affiliation>
- <address>
- <email>rusty@rustcorp.com.au</email>
- </address>
- </affiliation>
- </author>
- </authorgroup>
-
- <copyright>
- <year>2003</year>
- <holder>Rusty Russell</holder>
- </copyright>
-
- <legalnotice>
- <para>
- This documentation is free software; you can redistribute
- it and/or modify it under the terms of the GNU General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later
- version.
- </para>
-
- <para>
- This program is distributed in the hope that it will be
- useful, but WITHOUT ANY WARRANTY; without even the implied
- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- See the GNU General Public License for more details.
- </para>
-
- <para>
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- MA 02111-1307 USA
- </para>
-
- <para>
- For more details see the file COPYING in the source
- distribution of Linux.
- </para>
- </legalnotice>
- </bookinfo>
-
- <toc></toc>
- <chapter id="intro">
- <title>Introduction</title>
- <para>
- Welcome, to Rusty's Remarkably Unreliable Guide to Kernel
- Locking issues. This document describes the locking systems in
- the Linux Kernel in 2.6.
- </para>
- <para>
- With the wide availability of HyperThreading, and <firstterm
- linkend="gloss-preemption">preemption </firstterm> in the Linux
- Kernel, everyone hacking on the kernel needs to know the
- fundamentals of concurrency and locking for
- <firstterm linkend="gloss-smp"><acronym>SMP</acronym></firstterm>.
- </para>
- </chapter>
-
- <chapter id="races">
- <title>The Problem With Concurrency</title>
- <para>
- (Skip this if you know what a Race Condition is).
- </para>
- <para>
- In a normal program, you can increment a counter like so:
- </para>
- <programlisting>
- very_important_count++;
- </programlisting>
-
- <para>
- This is what they would expect to happen:
- </para>
-
- <table>
- <title>Expected Results</title>
-
- <tgroup cols="2" align="left">
-
- <thead>
- <row>
- <entry>Instance 1</entry>
- <entry>Instance 2</entry>
- </row>
- </thead>
-
- <tbody>
- <row>
- <entry>read very_important_count (5)</entry>
- <entry></entry>
- </row>
- <row>
- <entry>add 1 (6)</entry>
- <entry></entry>
- </row>
- <row>
- <entry>write very_important_count (6)</entry>
- <entry></entry>
- </row>
- <row>
- <entry></entry>
- <entry>read very_important_count (6)</entry>
- </row>
- <row>
- <entry></entry>
- <entry>add 1 (7)</entry>
- </row>
- <row>
- <entry></entry>
- <entry>write very_important_count (7)</entry>
- </row>
- </tbody>
-
- </tgroup>
- </table>
-
- <para>
- This is what might happen:
- </para>
-
- <table>
- <title>Possible Results</title>
-
- <tgroup cols="2" align="left">
- <thead>
- <row>
- <entry>Instance 1</entry>
- <entry>Instance 2</entry>
- </row>
- </thead>
-
- <tbody>
- <row>
- <entry>read very_important_count (5)</entry>
- <entry></entry>
- </row>
- <row>
- <entry></entry>
- <entry>read very_important_count (5)</entry>
- </row>
- <row>
- <entry>add 1 (6)</entry>
- <entry></entry>
- </row>
- <row>
- <entry></entry>
- <entry>add 1 (6)</entry>
- </row>
- <row>
- <entry>write very_important_count (6)</entry>
- <entry></entry>
- </row>
- <row>
- <entry></entry>
- <entry>write very_important_count (6)</entry>
- </row>
- </tbody>
- </tgroup>
- </table>
-
- <sect1 id="race-condition">
- <title>Race Conditions and Critical Regions</title>
- <para>
- This overlap, where the result depends on the
- relative timing of multiple tasks, is called a <firstterm>race condition</firstterm>.
- The piece of code containing the concurrency issue is called a
- <firstterm>critical region</firstterm>. And especially since Linux starting running
- on SMP machines, they became one of the major issues in kernel
- design and implementation.
- </para>
- <para>
- Preemption can have the same effect, even if there is only one
- CPU: by preempting one task during the critical region, we have
- exactly the same race condition. In this case the thread which
- preempts might run the critical region itself.
- </para>
- <para>
- The solution is to recognize when these simultaneous accesses
- occur, and use locks to make sure that only one instance can
- enter the critical region at any time. There are many
- friendly primitives in the Linux kernel to help you do this.
- And then there are the unfriendly primitives, but I'll pretend
- they don't exist.
- </para>
- </sect1>
- </chapter>
-
- <chapter id="locks">
- <title>Locking in the Linux Kernel</title>
-
- <para>
- If I could give you one piece of advice: never sleep with anyone
- crazier than yourself. But if I had to give you advice on
- locking: <emphasis>keep it simple</emphasis>.
- </para>
-
- <para>
- Be reluctant to introduce new locks.
- </para>
-
- <para>
- Strangely enough, this last one is the exact reverse of my advice when
- you <emphasis>have</emphasis> slept with someone crazier than yourself.
- And you should think about getting a big dog.
- </para>
-
- <sect1 id="lock-intro">
- <title>Two Main Types of Kernel Locks: Spinlocks and Mutexes</title>
-
- <para>
- There are two main types of kernel locks. The fundamental type
- is the spinlock
- (<filename class="headerfile">include/asm/spinlock.h</filename>),
- which is a very simple single-holder lock: if you can't get the
- spinlock, you keep trying (spinning) until you can. Spinlocks are
- very small and fast, and can be used anywhere.
- </para>
- <para>
- The second type is a mutex
- (<filename class="headerfile">include/linux/mutex.h</filename>): it
- is like a spinlock, but you may block holding a mutex.
- If you can't lock a mutex, your task will suspend itself, and be woken
- up when the mutex is released. This means the CPU can do something
- else while you are waiting. There are many cases when you simply
- can't sleep (see <xref linkend="sleeping-things"/>), and so have to
- use a spinlock instead.
- </para>
- <para>
- Neither type of lock is recursive: see
- <xref linkend="deadlock"/>.
- </para>
- </sect1>
-
- <sect1 id="uniprocessor">
- <title>Locks and Uniprocessor Kernels</title>
-
- <para>
- For kernels compiled without <symbol>CONFIG_SMP</symbol>, and
- without <symbol>CONFIG_PREEMPT</symbol> spinlocks do not exist at
- all. This is an excellent design decision: when no-one else can
- run at the same time, there is no reason to have a lock.
- </para>
-
- <para>
- If the kernel is compiled without <symbol>CONFIG_SMP</symbol>,
- but <symbol>CONFIG_PREEMPT</symbol> is set, then spinlocks
- simply disable preemption, which is sufficient to prevent any
- races. For most purposes, we can think of preemption as
- equivalent to SMP, and not worry about it separately.
- </para>
-
- <para>
- You should always test your locking code with <symbol>CONFIG_SMP</symbol>
- and <symbol>CONFIG_PREEMPT</symbol> enabled, even if you don't have an SMP test box, because it
- will still catch some kinds of locking bugs.
- </para>
-
- <para>
- Mutexes still exist, because they are required for
- synchronization between <firstterm linkend="gloss-usercontext">user
- contexts</firstterm>, as we will see below.
- </para>
- </sect1>
-
- <sect1 id="usercontextlocking">
- <title>Locking Only In User Context</title>
-
- <para>
- If you have a data structure which is only ever accessed from
- user context, then you can use a simple mutex
- (<filename>include/linux/mutex.h</filename>) to protect it. This
- is the most trivial case: you initialize the mutex. Then you can
- call <function>mutex_lock_interruptible()</function> to grab the mutex,
- and <function>mutex_unlock()</function> to release it. There is also a
- <function>mutex_lock()</function>, which should be avoided, because it
- will not return if a signal is received.
- </para>
-
- <para>
- Example: <filename>net/netfilter/nf_sockopt.c</filename> allows
- registration of new <function>setsockopt()</function> and
- <function>getsockopt()</function> calls, with
- <function>nf_register_sockopt()</function>. Registration and
- de-registration are only done on module load and unload (and boot
- time, where there is no concurrency), and the list of registrations
- is only consulted for an unknown <function>setsockopt()</function>
- or <function>getsockopt()</function> system call. The
- <varname>nf_sockopt_mutex</varname> is perfect to protect this,
- especially since the setsockopt and getsockopt calls may well
- sleep.
- </para>
- </sect1>
-
- <sect1 id="lock-user-bh">
- <title>Locking Between User Context and Softirqs</title>
-
- <para>
- If a <firstterm linkend="gloss-softirq">softirq</firstterm> shares
- data with user context, you have two problems. Firstly, the current
- user context can be interrupted by a softirq, and secondly, the
- critical region could be entered from another CPU. This is where
- <function>spin_lock_bh()</function>
- (<filename class="headerfile">include/linux/spinlock.h</filename>) is
- used. It disables softirqs on that CPU, then grabs the lock.
- <function>spin_unlock_bh()</function> does the reverse. (The
- '_bh' suffix is a historical reference to "Bottom Halves", the
- old name for software interrupts. It should really be
- called spin_lock_softirq()' in a perfect world).
- </para>
-
- <para>
- Note that you can also use <function>spin_lock_irq()</function>
- or <function>spin_lock_irqsave()</function> here, which stop
- hardware interrupts as well: see <xref linkend="hardirq-context"/>.
- </para>
-
- <para>
- This works perfectly for <firstterm linkend="gloss-up"><acronym>UP
- </acronym></firstterm> as well: the spin lock vanishes, and this macro
- simply becomes <function>local_bh_disable()</function>
- (<filename class="headerfile">include/linux/interrupt.h</filename>), which
- protects you from the softirq being run.
- </para>
- </sect1>
-
- <sect1 id="lock-user-tasklet">
- <title>Locking Between User Context and Tasklets</title>
-
- <para>
- This is exactly the same as above, because <firstterm
- linkend="gloss-tasklet">tasklets</firstterm> are actually run
- from a softirq.
- </para>
- </sect1>
-
- <sect1 id="lock-user-timers">
- <title>Locking Between User Context and Timers</title>
-
- <para>
- This, too, is exactly the same as above, because <firstterm
- linkend="gloss-timers">timers</firstterm> are actually run from
- a softirq. From a locking point of view, tasklets and timers
- are identical.
- </para>
- </sect1>
-
- <sect1 id="lock-tasklets">
- <title>Locking Between Tasklets/Timers</title>
-
- <para>
- Sometimes a tasklet or timer might want to share data with
- another tasklet or timer.
- </para>
-
- <sect2 id="lock-tasklets-same">
- <title>The Same Tasklet/Timer</title>
- <para>
- Since a tasklet is never run on two CPUs at once, you don't
- need to worry about your tasklet being reentrant (running
- twice at once), even on SMP.
- </para>
- </sect2>
-
- <sect2 id="lock-tasklets-different">
- <title>Different Tasklets/Timers</title>
- <para>
- If another tasklet/timer wants
- to share data with your tasklet or timer , you will both need to use
- <function>spin_lock()</function> and
- <function>spin_unlock()</function> calls.
- <function>spin_lock_bh()</function> is
- unnecessary here, as you are already in a tasklet, and
- none will be run on the same CPU.
- </para>
- </sect2>
- </sect1>
-
- <sect1 id="lock-softirqs">
- <title>Locking Between Softirqs</title>
-
- <para>
- Often a softirq might
- want to share data with itself or a tasklet/timer.
- </para>
-
- <sect2 id="lock-softirqs-same">
- <title>The Same Softirq</title>
-
- <para>
- The same softirq can run on the other CPUs: you can use a
- per-CPU array (see <xref linkend="per-cpu"/>) for better
- performance. If you're going so far as to use a softirq,
- you probably care about scalable performance enough
- to justify the extra complexity.
- </para>
-
- <para>
- You'll need to use <function>spin_lock()</function> and
- <function>spin_unlock()</function> for shared data.
- </para>
- </sect2>
-
- <sect2 id="lock-softirqs-different">
- <title>Different Softirqs</title>
-
- <para>
- You'll need to use <function>spin_lock()</function> and
- <function>spin_unlock()</function> for shared data, whether it
- be a timer, tasklet, different softirq or the same or another
- softirq: any of them could be running on a different CPU.
- </para>
- </sect2>
- </sect1>
- </chapter>
-
- <chapter id="hardirq-context">
- <title>Hard IRQ Context</title>
-
- <para>
- Hardware interrupts usually communicate with a
- tasklet or softirq. Frequently this involves putting work in a
- queue, which the softirq will take out.
- </para>
-
- <sect1 id="hardirq-softirq">
- <title>Locking Between Hard IRQ and Softirqs/Tasklets</title>
-
- <para>
- If a hardware irq handler shares data with a softirq, you have
- two concerns. Firstly, the softirq processing can be
- interrupted by a hardware interrupt, and secondly, the
- critical region could be entered by a hardware interrupt on
- another CPU. This is where <function>spin_lock_irq()</function> is
- used. It is defined to disable interrupts on that cpu, then grab
- the lock. <function>spin_unlock_irq()</function> does the reverse.
- </para>
-
- <para>
- The irq handler does not to use
- <function>spin_lock_irq()</function>, because the softirq cannot
- run while the irq handler is running: it can use
- <function>spin_lock()</function>, which is slightly faster. The
- only exception would be if a different hardware irq handler uses
- the same lock: <function>spin_lock_irq()</function> will stop
- that from interrupting us.
- </para>
-
- <para>
- This works perfectly for UP as well: the spin lock vanishes,
- and this macro simply becomes <function>local_irq_disable()</function>
- (<filename class="headerfile">include/asm/smp.h</filename>), which
- protects you from the softirq/tasklet/BH being run.
- </para>
-
- <para>
- <function>spin_lock_irqsave()</function>
- (<filename>include/linux/spinlock.h</filename>) is a variant
- which saves whether interrupts were on or off in a flags word,
- which is passed to <function>spin_unlock_irqrestore()</function>. This
- means that the same code can be used inside an hard irq handler (where
- interrupts are already off) and in softirqs (where the irq
- disabling is required).
- </para>
-
- <para>
- Note that softirqs (and hence tasklets and timers) are run on
- return from hardware interrupts, so
- <function>spin_lock_irq()</function> also stops these. In that
- sense, <function>spin_lock_irqsave()</function> is the most
- general and powerful locking function.
- </para>
-
- </sect1>
- <sect1 id="hardirq-hardirq">
- <title>Locking Between Two Hard IRQ Handlers</title>
- <para>
- It is rare to have to share data between two IRQ handlers, but
- if you do, <function>spin_lock_irqsave()</function> should be
- used: it is architecture-specific whether all interrupts are
- disabled inside irq handlers themselves.
- </para>
- </sect1>
-
- </chapter>
-
- <chapter id="cheatsheet">
- <title>Cheat Sheet For Locking</title>
- <para>
- Pete Zaitcev gives the following summary:
- </para>
- <itemizedlist>
- <listitem>
- <para>
- If you are in a process context (any syscall) and want to
- lock other process out, use a mutex. You can take a mutex
- and sleep (<function>copy_from_user*(</function> or
- <function>kmalloc(x,GFP_KERNEL)</function>).
- </para>
- </listitem>
- <listitem>
- <para>
- Otherwise (== data can be touched in an interrupt), use
- <function>spin_lock_irqsave()</function> and
- <function>spin_unlock_irqrestore()</function>.
- </para>
- </listitem>
- <listitem>
- <para>
- Avoid holding spinlock for more than 5 lines of code and
- across any function call (except accessors like
- <function>readb</function>).
- </para>
- </listitem>
- </itemizedlist>
-
- <sect1 id="minimum-lock-reqirements">
- <title>Table of Minimum Requirements</title>
-
- <para> The following table lists the <emphasis>minimum</emphasis>
- locking requirements between various contexts. In some cases,
- the same context can only be running on one CPU at a time, so
- no locking is required for that context (eg. a particular
- thread can only run on one CPU at a time, but if it needs
- shares data with another thread, locking is required).
- </para>
- <para>
- Remember the advice above: you can always use
- <function>spin_lock_irqsave()</function>, which is a superset
- of all other spinlock primitives.
- </para>
-
- <table>
-<title>Table of Locking Requirements</title>
-<tgroup cols="11">
-<tbody>
-
-<row>
-<entry></entry>
-<entry>IRQ Handler A</entry>
-<entry>IRQ Handler B</entry>
-<entry>Softirq A</entry>
-<entry>Softirq B</entry>
-<entry>Tasklet A</entry>
-<entry>Tasklet B</entry>
-<entry>Timer A</entry>
-<entry>Timer B</entry>
-<entry>User Context A</entry>
-<entry>User Context B</entry>
-</row>
-
-<row>
-<entry>IRQ Handler A</entry>
-<entry>None</entry>
-</row>
-
-<row>
-<entry>IRQ Handler B</entry>
-<entry>SLIS</entry>
-<entry>None</entry>
-</row>
-
-<row>
-<entry>Softirq A</entry>
-<entry>SLI</entry>
-<entry>SLI</entry>
-<entry>SL</entry>
-</row>
-
-<row>
-<entry>Softirq B</entry>
-<entry>SLI</entry>
-<entry>SLI</entry>
-<entry>SL</entry>
-<entry>SL</entry>
-</row>
-
-<row>
-<entry>Tasklet A</entry>
-<entry>SLI</entry>
-<entry>SLI</entry>
-<entry>SL</entry>
-<entry>SL</entry>
-<entry>None</entry>
-</row>
-
-<row>
-<entry>Tasklet B</entry>
-<entry>SLI</entry>
-<entry>SLI</entry>
-<entry>SL</entry>
-<entry>SL</entry>
-<entry>SL</entry>
-<entry>None</entry>
-</row>
-
-<row>
-<entry>Timer A</entry>
-<entry>SLI</entry>
-<entry>SLI</entry>
-<entry>SL</entry>
-<entry>SL</entry>
-<entry>SL</entry>
-<entry>SL</entry>
-<entry>None</entry>
-</row>
-
-<row>
-<entry>Timer B</entry>
-<entry>SLI</entry>
-<entry>SLI</entry>
-<entry>SL</entry>
-<entry>SL</entry>
-<entry>SL</entry>
-<entry>SL</entry>
-<entry>SL</entry>
-<entry>None</entry>
-</row>
-
-<row>
-<entry>User Context A</entry>
-<entry>SLI</entry>
-<entry>SLI</entry>
-<entry>SLBH</entry>
-<entry>SLBH</entry>
-<entry>SLBH</entry>
-<entry>SLBH</entry>
-<entry>SLBH</entry>
-<entry>SLBH</entry>
-<entry>None</entry>
-</row>
-
-<row>
-<entry>User Context B</entry>
-<entry>SLI</entry>
-<entry>SLI</entry>
-<entry>SLBH</entry>
-<entry>SLBH</entry>
-<entry>SLBH</entry>
-<entry>SLBH</entry>
-<entry>SLBH</entry>
-<entry>SLBH</entry>
-<entry>MLI</entry>
-<entry>None</entry>
-</row>
-
-</tbody>
-</tgroup>
-</table>
-
- <table>
-<title>Legend for Locking Requirements Table</title>
-<tgroup cols="2">
-<tbody>
-
-<row>
-<entry>SLIS</entry>
-<entry>spin_lock_irqsave</entry>
-</row>
-<row>
-<entry>SLI</entry>
-<entry>spin_lock_irq</entry>
-</row>
-<row>
-<entry>SL</entry>
-<entry>spin_lock</entry>
-</row>
-<row>
-<entry>SLBH</entry>
-<entry>spin_lock_bh</entry>
-</row>
-<row>
-<entry>MLI</entry>
-<entry>mutex_lock_interruptible</entry>
-</row>
-
-</tbody>
-</tgroup>
-</table>
-
-</sect1>
-</chapter>
-
-<chapter id="trylock-functions">
- <title>The trylock Functions</title>
- <para>
- There are functions that try to acquire a lock only once and immediately
- return a value telling about success or failure to acquire the lock.
- They can be used if you need no access to the data protected with the lock
- when some other thread is holding the lock. You should acquire the lock
- later if you then need access to the data protected with the lock.
- </para>
-
- <para>
- <function>spin_trylock()</function> does not spin but returns non-zero if
- it acquires the spinlock on the first try or 0 if not. This function can
- be used in all contexts like <function>spin_lock</function>: you must have
- disabled the contexts that might interrupt you and acquire the spin lock.
- </para>
-
- <para>
- <function>mutex_trylock()</function> does not suspend your task
- but returns non-zero if it could lock the mutex on the first try
- or 0 if not. This function cannot be safely used in hardware or software
- interrupt contexts despite not sleeping.
- </para>
-</chapter>
-
- <chapter id="Examples">
- <title>Common Examples</title>
- <para>
-Let's step through a simple example: a cache of number to name
-mappings. The cache keeps a count of how often each of the objects is
-used, and when it gets full, throws out the least used one.
-
- </para>
-
- <sect1 id="examples-usercontext">
- <title>All In User Context</title>
- <para>
-For our first example, we assume that all operations are in user
-context (ie. from system calls), so we can sleep. This means we can
-use a mutex to protect the cache and all the objects within
-it. Here's the code:
- </para>
-
- <programlisting>
-#include &lt;linux/list.h&gt;
-#include &lt;linux/slab.h&gt;
-#include &lt;linux/string.h&gt;
-#include &lt;linux/mutex.h&gt;
-#include &lt;asm/errno.h&gt;
-
-struct object
-{
- struct list_head list;
- int id;
- char name[32];
- int popularity;
-};
-
-/* Protects the cache, cache_num, and the objects within it */
-static DEFINE_MUTEX(cache_lock);
-static LIST_HEAD(cache);
-static unsigned int cache_num = 0;
-#define MAX_CACHE_SIZE 10
-
-/* Must be holding cache_lock */
-static struct object *__cache_find(int id)
-{
- struct object *i;
-
- list_for_each_entry(i, &amp;cache, list)
- if (i-&gt;id == id) {
- i-&gt;popularity++;
- return i;
- }
- return NULL;
-}
-
-/* Must be holding cache_lock */
-static void __cache_delete(struct object *obj)
-{
- BUG_ON(!obj);
- list_del(&amp;obj-&gt;list);
- kfree(obj);
- cache_num--;
-}
-
-/* Must be holding cache_lock */
-static void __cache_add(struct object *obj)
-{
- list_add(&amp;obj-&gt;list, &amp;cache);
- if (++cache_num > MAX_CACHE_SIZE) {
- struct object *i, *outcast = NULL;
- list_for_each_entry(i, &amp;cache, list) {
- if (!outcast || i-&gt;popularity &lt; outcast-&gt;popularity)
- outcast = i;
- }
- __cache_delete(outcast);
- }
-}
-
-int cache_add(int id, const char *name)
-{
- struct object *obj;
-
- if ((obj = kmalloc(sizeof(*obj), GFP_KERNEL)) == NULL)
- return -ENOMEM;
-
- strlcpy(obj-&gt;name, name, sizeof(obj-&gt;name));
- obj-&gt;id = id;
- obj-&gt;popularity = 0;
-
- mutex_lock(&amp;cache_lock);
- __cache_add(obj);
- mutex_unlock(&amp;cache_lock);
- return 0;
-}
-
-void cache_delete(int id)
-{
- mutex_lock(&amp;cache_lock);
- __cache_delete(__cache_find(id));
- mutex_unlock(&amp;cache_lock);
-}
-
-int cache_find(int id, char *name)
-{
- struct object *obj;
- int ret = -ENOENT;
-
- mutex_lock(&amp;cache_lock);
- obj = __cache_find(id);
- if (obj) {
- ret = 0;
- strcpy(name, obj-&gt;name);
- }
- mutex_unlock(&amp;cache_lock);
- return ret;
-}
-</programlisting>
-
- <para>
-Note that we always make sure we have the cache_lock when we add,
-delete, or look up the cache: both the cache infrastructure itself and
-the contents of the objects are protected by the lock. In this case
-it's easy, since we copy the data for the user, and never let them
-access the objects directly.
- </para>
- <para>
-There is a slight (and common) optimization here: in
-<function>cache_add</function> we set up the fields of the object
-before grabbing the lock. This is safe, as no-one else can access it
-until we put it in cache.
- </para>
- </sect1>
-
- <sect1 id="examples-interrupt">
- <title>Accessing From Interrupt Context</title>
- <para>
-Now consider the case where <function>cache_find</function> can be
-called from interrupt context: either a hardware interrupt or a
-softirq. An example would be a timer which deletes object from the
-cache.
- </para>
- <para>
-The change is shown below, in standard patch format: the
-<symbol>-</symbol> are lines which are taken away, and the
-<symbol>+</symbol> are lines which are added.
- </para>
-<programlisting>
---- cache.c.usercontext 2003-12-09 13:58:54.000000000 +1100
-+++ cache.c.interrupt 2003-12-09 14:07:49.000000000 +1100
-@@ -12,7 +12,7 @@
- int popularity;
- };
-
--static DEFINE_MUTEX(cache_lock);
-+static DEFINE_SPINLOCK(cache_lock);
- static LIST_HEAD(cache);
- static unsigned int cache_num = 0;
- #define MAX_CACHE_SIZE 10
-@@ -55,6 +55,7 @@
- int cache_add(int id, const char *name)
- {
- struct object *obj;
-+ unsigned long flags;
-
- if ((obj = kmalloc(sizeof(*obj), GFP_KERNEL)) == NULL)
- return -ENOMEM;
-@@ -63,30 +64,33 @@
- obj-&gt;id = id;
- obj-&gt;popularity = 0;
-
-- mutex_lock(&amp;cache_lock);
-+ spin_lock_irqsave(&amp;cache_lock, flags);
- __cache_add(obj);
-- mutex_unlock(&amp;cache_lock);
-+ spin_unlock_irqrestore(&amp;cache_lock, flags);
- return 0;
- }
-
- void cache_delete(int id)
- {
-- mutex_lock(&amp;cache_lock);
-+ unsigned long flags;
-+
-+ spin_lock_irqsave(&amp;cache_lock, flags);
- __cache_delete(__cache_find(id));
-- mutex_unlock(&amp;cache_lock);
-+ spin_unlock_irqrestore(&amp;cache_lock, flags);
- }
-
- int cache_find(int id, char *name)
- {
- struct object *obj;
- int ret = -ENOENT;
-+ unsigned long flags;
-
-- mutex_lock(&amp;cache_lock);
-+ spin_lock_irqsave(&amp;cache_lock, flags);
- obj = __cache_find(id);
- if (obj) {
- ret = 0;
- strcpy(name, obj-&gt;name);
- }
-- mutex_unlock(&amp;cache_lock);
-+ spin_unlock_irqrestore(&amp;cache_lock, flags);
- return ret;
- }
-</programlisting>
-
- <para>
-Note that the <function>spin_lock_irqsave</function> will turn off
-interrupts if they are on, otherwise does nothing (if we are already
-in an interrupt handler), hence these functions are safe to call from
-any context.
- </para>
- <para>
-Unfortunately, <function>cache_add</function> calls
-<function>kmalloc</function> with the <symbol>GFP_KERNEL</symbol>
-flag, which is only legal in user context. I have assumed that
-<function>cache_add</function> is still only called in user context,
-otherwise this should become a parameter to
-<function>cache_add</function>.
- </para>
- </sect1>
- <sect1 id="examples-refcnt">
- <title>Exposing Objects Outside This File</title>
- <para>
-If our objects contained more information, it might not be sufficient
-to copy the information in and out: other parts of the code might want
-to keep pointers to these objects, for example, rather than looking up
-the id every time. This produces two problems.
- </para>
- <para>
-The first problem is that we use the <symbol>cache_lock</symbol> to
-protect objects: we'd need to make this non-static so the rest of the
-code can use it. This makes locking trickier, as it is no longer all
-in one place.
- </para>
- <para>
-The second problem is the lifetime problem: if another structure keeps
-a pointer to an object, it presumably expects that pointer to remain
-valid. Unfortunately, this is only guaranteed while you hold the
-lock, otherwise someone might call <function>cache_delete</function>
-and even worse, add another object, re-using the same address.
- </para>
- <para>
-As there is only one lock, you can't hold it forever: no-one else would
-get any work done.
- </para>
- <para>
-The solution to this problem is to use a reference count: everyone who
-has a pointer to the object increases it when they first get the
-object, and drops the reference count when they're finished with it.
-Whoever drops it to zero knows it is unused, and can actually delete it.
- </para>
- <para>
-Here is the code:
- </para>
-
-<programlisting>
---- cache.c.interrupt 2003-12-09 14:25:43.000000000 +1100
-+++ cache.c.refcnt 2003-12-09 14:33:05.000000000 +1100
-@@ -7,6 +7,7 @@
- struct object
- {
- struct list_head list;
-+ unsigned int refcnt;
- int id;
- char name[32];
- int popularity;
-@@ -17,6 +18,35 @@
- static unsigned int cache_num = 0;
- #define MAX_CACHE_SIZE 10
-
-+static void __object_put(struct object *obj)
-+{
-+ if (--obj-&gt;refcnt == 0)
-+ kfree(obj);
-+}
-+
-+static void __object_get(struct object *obj)
-+{
-+ obj-&gt;refcnt++;
-+}
-+
-+void object_put(struct object *obj)
-+{
-+ unsigned long flags;
-+
-+ spin_lock_irqsave(&amp;cache_lock, flags);
-+ __object_put(obj);
-+ spin_unlock_irqrestore(&amp;cache_lock, flags);
-+}
-+
-+void object_get(struct object *obj)
-+{
-+ unsigned long flags;
-+
-+ spin_lock_irqsave(&amp;cache_lock, flags);
-+ __object_get(obj);
-+ spin_unlock_irqrestore(&amp;cache_lock, flags);
-+}
-+
- /* Must be holding cache_lock */
- static struct object *__cache_find(int id)
- {
-@@ -35,6 +65,7 @@
- {
- BUG_ON(!obj);
- list_del(&amp;obj-&gt;list);
-+ __object_put(obj);
- cache_num--;
- }
-
-@@ -63,6 +94,7 @@
- strlcpy(obj-&gt;name, name, sizeof(obj-&gt;name));
- obj-&gt;id = id;
- obj-&gt;popularity = 0;
-+ obj-&gt;refcnt = 1; /* The cache holds a reference */
-
- spin_lock_irqsave(&amp;cache_lock, flags);
- __cache_add(obj);
-@@ -79,18 +111,15 @@
- spin_unlock_irqrestore(&amp;cache_lock, flags);
- }
-
--int cache_find(int id, char *name)
-+struct object *cache_find(int id)
- {
- struct object *obj;
-- int ret = -ENOENT;
- unsigned long flags;
-
- spin_lock_irqsave(&amp;cache_lock, flags);
- obj = __cache_find(id);
-- if (obj) {
-- ret = 0;
-- strcpy(name, obj-&gt;name);
-- }
-+ if (obj)
-+ __object_get(obj);
- spin_unlock_irqrestore(&amp;cache_lock, flags);
-- return ret;
-+ return obj;
- }
-</programlisting>
-
-<para>
-We encapsulate the reference counting in the standard 'get' and 'put'
-functions. Now we can return the object itself from
-<function>cache_find</function> which has the advantage that the user
-can now sleep holding the object (eg. to
-<function>copy_to_user</function> to name to userspace).
-</para>
-<para>
-The other point to note is that I said a reference should be held for
-every pointer to the object: thus the reference count is 1 when first
-inserted into the cache. In some versions the framework does not hold
-a reference count, but they are more complicated.
-</para>
-
- <sect2 id="examples-refcnt-atomic">
- <title>Using Atomic Operations For The Reference Count</title>
-<para>
-In practice, <type>atomic_t</type> would usually be used for
-<structfield>refcnt</structfield>. There are a number of atomic
-operations defined in
-
-<filename class="headerfile">include/asm/atomic.h</filename>: these are
-guaranteed to be seen atomically from all CPUs in the system, so no
-lock is required. In this case, it is simpler than using spinlocks,
-although for anything non-trivial using spinlocks is clearer. The
-<function>atomic_inc</function> and
-<function>atomic_dec_and_test</function> are used instead of the
-standard increment and decrement operators, and the lock is no longer
-used to protect the reference count itself.
-</para>
-
-<programlisting>
---- cache.c.refcnt 2003-12-09 15:00:35.000000000 +1100
-+++ cache.c.refcnt-atomic 2003-12-11 15:49:42.000000000 +1100
-@@ -7,7 +7,7 @@
- struct object
- {
- struct list_head list;
-- unsigned int refcnt;
-+ atomic_t refcnt;
- int id;
- char name[32];
- int popularity;
-@@ -18,33 +18,15 @@
- static unsigned int cache_num = 0;
- #define MAX_CACHE_SIZE 10
-
--static void __object_put(struct object *obj)
--{
-- if (--obj-&gt;refcnt == 0)
-- kfree(obj);
--}
--
--static void __object_get(struct object *obj)
--{
-- obj-&gt;refcnt++;
--}
--
- void object_put(struct object *obj)
- {
-- unsigned long flags;
--
-- spin_lock_irqsave(&amp;cache_lock, flags);
-- __object_put(obj);
-- spin_unlock_irqrestore(&amp;cache_lock, flags);
-+ if (atomic_dec_and_test(&amp;obj-&gt;refcnt))
-+ kfree(obj);
- }
-
- void object_get(struct object *obj)
- {
-- unsigned long flags;
--
-- spin_lock_irqsave(&amp;cache_lock, flags);
-- __object_get(obj);
-- spin_unlock_irqrestore(&amp;cache_lock, flags);
-+ atomic_inc(&amp;obj-&gt;refcnt);
- }
-
- /* Must be holding cache_lock */
-@@ -65,7 +47,7 @@
- {
- BUG_ON(!obj);
- list_del(&amp;obj-&gt;list);
-- __object_put(obj);
-+ object_put(obj);
- cache_num--;
- }
-
-@@ -94,7 +76,7 @@
- strlcpy(obj-&gt;name, name, sizeof(obj-&gt;name));
- obj-&gt;id = id;
- obj-&gt;popularity = 0;
-- obj-&gt;refcnt = 1; /* The cache holds a reference */
-+ atomic_set(&amp;obj-&gt;refcnt, 1); /* The cache holds a reference */
-
- spin_lock_irqsave(&amp;cache_lock, flags);
- __cache_add(obj);
-@@ -119,7 +101,7 @@
- spin_lock_irqsave(&amp;cache_lock, flags);
- obj = __cache_find(id);
- if (obj)
-- __object_get(obj);
-+ object_get(obj);
- spin_unlock_irqrestore(&amp;cache_lock, flags);
- return obj;
- }
-</programlisting>
-</sect2>
-</sect1>
-
- <sect1 id="examples-lock-per-obj">
- <title>Protecting The Objects Themselves</title>
- <para>
-In these examples, we assumed that the objects (except the reference
-counts) never changed once they are created. If we wanted to allow
-the name to change, there are three possibilities:
- </para>
- <itemizedlist>
- <listitem>
- <para>
-You can make <symbol>cache_lock</symbol> non-static, and tell people
-to grab that lock before changing the name in any object.
- </para>
- </listitem>
- <listitem>
- <para>
-You can provide a <function>cache_obj_rename</function> which grabs
-this lock and changes the name for the caller, and tell everyone to
-use that function.
- </para>
- </listitem>
- <listitem>
- <para>
-You can make the <symbol>cache_lock</symbol> protect only the cache
-itself, and use another lock to protect the name.
- </para>
- </listitem>
- </itemizedlist>
-
- <para>
-Theoretically, you can make the locks as fine-grained as one lock for
-every field, for every object. In practice, the most common variants
-are:
-</para>
- <itemizedlist>
- <listitem>
- <para>
-One lock which protects the infrastructure (the <symbol>cache</symbol>
-list in this example) and all the objects. This is what we have done
-so far.
- </para>
- </listitem>
- <listitem>
- <para>
-One lock which protects the infrastructure (including the list
-pointers inside the objects), and one lock inside the object which
-protects the rest of that object.
- </para>
- </listitem>
- <listitem>
- <para>
-Multiple locks to protect the infrastructure (eg. one lock per hash
-chain), possibly with a separate per-object lock.
- </para>
- </listitem>
- </itemizedlist>
-
-<para>
-Here is the "lock-per-object" implementation:
-</para>
-<programlisting>
---- cache.c.refcnt-atomic 2003-12-11 15:50:54.000000000 +1100
-+++ cache.c.perobjectlock 2003-12-11 17:15:03.000000000 +1100
-@@ -6,11 +6,17 @@
-
- struct object
- {
-+ /* These two protected by cache_lock. */
- struct list_head list;
-+ int popularity;
-+
- atomic_t refcnt;
-+
-+ /* Doesn't change once created. */
- int id;
-+
-+ spinlock_t lock; /* Protects the name */
- char name[32];
-- int popularity;
- };
-
- static DEFINE_SPINLOCK(cache_lock);
-@@ -77,6 +84,7 @@
- obj-&gt;id = id;
- obj-&gt;popularity = 0;
- atomic_set(&amp;obj-&gt;refcnt, 1); /* The cache holds a reference */
-+ spin_lock_init(&amp;obj-&gt;lock);
-
- spin_lock_irqsave(&amp;cache_lock, flags);
- __cache_add(obj);
-</programlisting>
-
-<para>
-Note that I decide that the <structfield>popularity</structfield>
-count should be protected by the <symbol>cache_lock</symbol> rather
-than the per-object lock: this is because it (like the
-<structname>struct list_head</structname> inside the object) is
-logically part of the infrastructure. This way, I don't need to grab
-the lock of every object in <function>__cache_add</function> when
-seeking the least popular.
-</para>
-
-<para>
-I also decided that the <structfield>id</structfield> member is
-unchangeable, so I don't need to grab each object lock in
-<function>__cache_find()</function> to examine the
-<structfield>id</structfield>: the object lock is only used by a
-caller who wants to read or write the <structfield>name</structfield>
-field.
-</para>
-
-<para>
-Note also that I added a comment describing what data was protected by
-which locks. This is extremely important, as it describes the runtime
-behavior of the code, and can be hard to gain from just reading. And
-as Alan Cox says, <quote>Lock data, not code</quote>.
-</para>
-</sect1>
-</chapter>
-
- <chapter id="common-problems">
- <title>Common Problems</title>
- <sect1 id="deadlock">
- <title>Deadlock: Simple and Advanced</title>
-
- <para>
- There is a coding bug where a piece of code tries to grab a
- spinlock twice: it will spin forever, waiting for the lock to
- be released (spinlocks, rwlocks and mutexes are not
- recursive in Linux). This is trivial to diagnose: not a
- stay-up-five-nights-talk-to-fluffy-code-bunnies kind of
- problem.
- </para>
-
- <para>
- For a slightly more complex case, imagine you have a region
- shared by a softirq and user context. If you use a
- <function>spin_lock()</function> call to protect it, it is
- possible that the user context will be interrupted by the softirq
- while it holds the lock, and the softirq will then spin
- forever trying to get the same lock.
- </para>
-
- <para>
- Both of these are called deadlock, and as shown above, it can
- occur even with a single CPU (although not on UP compiles,
- since spinlocks vanish on kernel compiles with
- <symbol>CONFIG_SMP</symbol>=n. You'll still get data corruption
- in the second example).
- </para>
-
- <para>
- This complete lockup is easy to diagnose: on SMP boxes the
- watchdog timer or compiling with <symbol>DEBUG_SPINLOCK</symbol> set
- (<filename>include/linux/spinlock.h</filename>) will show this up
- immediately when it happens.
- </para>
-
- <para>
- A more complex problem is the so-called 'deadly embrace',
- involving two or more locks. Say you have a hash table: each
- entry in the table is a spinlock, and a chain of hashed
- objects. Inside a softirq handler, you sometimes want to
- alter an object from one place in the hash to another: you
- grab the spinlock of the old hash chain and the spinlock of
- the new hash chain, and delete the object from the old one,
- and insert it in the new one.
- </para>
-
- <para>
- There are two problems here. First, if your code ever
- tries to move the object to the same chain, it will deadlock
- with itself as it tries to lock it twice. Secondly, if the
- same softirq on another CPU is trying to move another object
- in the reverse direction, the following could happen:
- </para>
-
- <table>
- <title>Consequences</title>
-
- <tgroup cols="2" align="left">
-
- <thead>
- <row>
- <entry>CPU 1</entry>
- <entry>CPU 2</entry>
- </row>
- </thead>
-
- <tbody>
- <row>
- <entry>Grab lock A -&gt; OK</entry>
- <entry>Grab lock B -&gt; OK</entry>
- </row>
- <row>
- <entry>Grab lock B -&gt; spin</entry>
- <entry>Grab lock A -&gt; spin</entry>
- </row>
- </tbody>
- </tgroup>
- </table>
-
- <para>
- The two CPUs will spin forever, waiting for the other to give up
- their lock. It will look, smell, and feel like a crash.
- </para>
- </sect1>
-
- <sect1 id="techs-deadlock-prevent">
- <title>Preventing Deadlock</title>
-
- <para>
- Textbooks will tell you that if you always lock in the same
- order, you will never get this kind of deadlock. Practice
- will tell you that this approach doesn't scale: when I
- create a new lock, I don't understand enough of the kernel
- to figure out where in the 5000 lock hierarchy it will fit.
- </para>
-
- <para>
- The best locks are encapsulated: they never get exposed in
- headers, and are never held around calls to non-trivial
- functions outside the same file. You can read through this
- code and see that it will never deadlock, because it never
- tries to grab another lock while it has that one. People
- using your code don't even need to know you are using a
- lock.
- </para>
-
- <para>
- A classic problem here is when you provide callbacks or
- hooks: if you call these with the lock held, you risk simple
- deadlock, or a deadly embrace (who knows what the callback
- will do?). Remember, the other programmers are out to get
- you, so don't do this.
- </para>
-
- <sect2 id="techs-deadlock-overprevent">
- <title>Overzealous Prevention Of Deadlocks</title>
-
- <para>
- Deadlocks are problematic, but not as bad as data
- corruption. Code which grabs a read lock, searches a list,
- fails to find what it wants, drops the read lock, grabs a
- write lock and inserts the object has a race condition.
- </para>
-
- <para>
- If you don't see why, please stay the fuck away from my code.
- </para>
- </sect2>
- </sect1>
-
- <sect1 id="racing-timers">
- <title>Racing Timers: A Kernel Pastime</title>
-
- <para>
- Timers can produce their own special problems with races.
- Consider a collection of objects (list, hash, etc) where each
- object has a timer which is due to destroy it.
- </para>
-
- <para>
- If you want to destroy the entire collection (say on module
- removal), you might do the following:
- </para>
-
- <programlisting>
- /* THIS CODE BAD BAD BAD BAD: IF IT WAS ANY WORSE IT WOULD USE
- HUNGARIAN NOTATION */
- spin_lock_bh(&amp;list_lock);
-
- while (list) {
- struct foo *next = list-&gt;next;
- del_timer(&amp;list-&gt;timer);
- kfree(list);
- list = next;
- }
-
- spin_unlock_bh(&amp;list_lock);
- </programlisting>
-
- <para>
- Sooner or later, this will crash on SMP, because a timer can
- have just gone off before the <function>spin_lock_bh()</function>,
- and it will only get the lock after we
- <function>spin_unlock_bh()</function>, and then try to free
- the element (which has already been freed!).
- </para>
-
- <para>
- This can be avoided by checking the result of
- <function>del_timer()</function>: if it returns
- <returnvalue>1</returnvalue>, the timer has been deleted.
- If <returnvalue>0</returnvalue>, it means (in this
- case) that it is currently running, so we can do:
- </para>
-
- <programlisting>
- retry:
- spin_lock_bh(&amp;list_lock);
-
- while (list) {
- struct foo *next = list-&gt;next;
- if (!del_timer(&amp;list-&gt;timer)) {
- /* Give timer a chance to delete this */
- spin_unlock_bh(&amp;list_lock);
- goto retry;
- }
- kfree(list);
- list = next;
- }
-
- spin_unlock_bh(&amp;list_lock);
- </programlisting>
-
- <para>
- Another common problem is deleting timers which restart
- themselves (by calling <function>add_timer()</function> at the end
- of their timer function). Because this is a fairly common case
- which is prone to races, you should use <function>del_timer_sync()</function>
- (<filename class="headerfile">include/linux/timer.h</filename>)
- to handle this case. It returns the number of times the timer
- had to be deleted before we finally stopped it from adding itself back
- in.
- </para>
- </sect1>
-
- </chapter>
-
- <chapter id="Efficiency">
- <title>Locking Speed</title>
-
- <para>
-There are three main things to worry about when considering speed of
-some code which does locking. First is concurrency: how many things
-are going to be waiting while someone else is holding a lock. Second
-is the time taken to actually acquire and release an uncontended lock.
-Third is using fewer, or smarter locks. I'm assuming that the lock is
-used fairly often: otherwise, you wouldn't be concerned about
-efficiency.
-</para>
- <para>
-Concurrency depends on how long the lock is usually held: you should
-hold the lock for as long as needed, but no longer. In the cache
-example, we always create the object without the lock held, and then
-grab the lock only when we are ready to insert it in the list.
-</para>
- <para>
-Acquisition times depend on how much damage the lock operations do to
-the pipeline (pipeline stalls) and how likely it is that this CPU was
-the last one to grab the lock (ie. is the lock cache-hot for this
-CPU): on a machine with more CPUs, this likelihood drops fast.
-Consider a 700MHz Intel Pentium III: an instruction takes about 0.7ns,
-an atomic increment takes about 58ns, a lock which is cache-hot on
-this CPU takes 160ns, and a cacheline transfer from another CPU takes
-an additional 170 to 360ns. (These figures from Paul McKenney's
-<ulink url="http://www.linuxjournal.com/article.php?sid=6993"> Linux
-Journal RCU article</ulink>).
-</para>
- <para>
-These two aims conflict: holding a lock for a short time might be done
-by splitting locks into parts (such as in our final per-object-lock
-example), but this increases the number of lock acquisitions, and the
-results are often slower than having a single lock. This is another
-reason to advocate locking simplicity.
-</para>
- <para>
-The third concern is addressed below: there are some methods to reduce
-the amount of locking which needs to be done.
-</para>
-
- <sect1 id="efficiency-rwlocks">
- <title>Read/Write Lock Variants</title>
-
- <para>
- Both spinlocks and mutexes have read/write variants:
- <type>rwlock_t</type> and <structname>struct rw_semaphore</structname>.
- These divide users into two classes: the readers and the writers. If
- you are only reading the data, you can get a read lock, but to write to
- the data you need the write lock. Many people can hold a read lock,
- but a writer must be sole holder.
- </para>
-
- <para>
- If your code divides neatly along reader/writer lines (as our
- cache code does), and the lock is held by readers for
- significant lengths of time, using these locks can help. They
- are slightly slower than the normal locks though, so in practice
- <type>rwlock_t</type> is not usually worthwhile.
- </para>
- </sect1>
-
- <sect1 id="efficiency-read-copy-update">
- <title>Avoiding Locks: Read Copy Update</title>
-
- <para>
- There is a special method of read/write locking called Read Copy
- Update. Using RCU, the readers can avoid taking a lock
- altogether: as we expect our cache to be read more often than
- updated (otherwise the cache is a waste of time), it is a
- candidate for this optimization.
- </para>
-
- <para>
- How do we get rid of read locks? Getting rid of read locks
- means that writers may be changing the list underneath the
- readers. That is actually quite simple: we can read a linked
- list while an element is being added if the writer adds the
- element very carefully. For example, adding
- <symbol>new</symbol> to a single linked list called
- <symbol>list</symbol>:
- </para>
-
- <programlisting>
- new-&gt;next = list-&gt;next;
- wmb();
- list-&gt;next = new;
- </programlisting>
-
- <para>
- The <function>wmb()</function> is a write memory barrier. It
- ensures that the first operation (setting the new element's
- <symbol>next</symbol> pointer) is complete and will be seen by
- all CPUs, before the second operation is (putting the new
- element into the list). This is important, since modern
- compilers and modern CPUs can both reorder instructions unless
- told otherwise: we want a reader to either not see the new
- element at all, or see the new element with the
- <symbol>next</symbol> pointer correctly pointing at the rest of
- the list.
- </para>
- <para>
- Fortunately, there is a function to do this for standard
- <structname>struct list_head</structname> lists:
- <function>list_add_rcu()</function>
- (<filename>include/linux/list.h</filename>).
- </para>
- <para>
- Removing an element from the list is even simpler: we replace
- the pointer to the old element with a pointer to its successor,
- and readers will either see it, or skip over it.
- </para>
- <programlisting>
- list-&gt;next = old-&gt;next;
- </programlisting>
- <para>
- There is <function>list_del_rcu()</function>
- (<filename>include/linux/list.h</filename>) which does this (the
- normal version poisons the old object, which we don't want).
- </para>
- <para>
- The reader must also be careful: some CPUs can look through the
- <symbol>next</symbol> pointer to start reading the contents of
- the next element early, but don't realize that the pre-fetched
- contents is wrong when the <symbol>next</symbol> pointer changes
- underneath them. Once again, there is a
- <function>list_for_each_entry_rcu()</function>
- (<filename>include/linux/list.h</filename>) to help you. Of
- course, writers can just use
- <function>list_for_each_entry()</function>, since there cannot
- be two simultaneous writers.
- </para>
- <para>
- Our final dilemma is this: when can we actually destroy the
- removed element? Remember, a reader might be stepping through
- this element in the list right now: if we free this element and
- the <symbol>next</symbol> pointer changes, the reader will jump
- off into garbage and crash. We need to wait until we know that
- all the readers who were traversing the list when we deleted the
- element are finished. We use <function>call_rcu()</function> to
- register a callback which will actually destroy the object once
- all pre-existing readers are finished. Alternatively,
- <function>synchronize_rcu()</function> may be used to block until
- all pre-existing are finished.
- </para>
- <para>
- But how does Read Copy Update know when the readers are
- finished? The method is this: firstly, the readers always
- traverse the list inside
- <function>rcu_read_lock()</function>/<function>rcu_read_unlock()</function>
- pairs: these simply disable preemption so the reader won't go to
- sleep while reading the list.
- </para>
- <para>
- RCU then waits until every other CPU has slept at least once:
- since readers cannot sleep, we know that any readers which were
- traversing the list during the deletion are finished, and the
- callback is triggered. The real Read Copy Update code is a
- little more optimized than this, but this is the fundamental
- idea.
- </para>
-
-<programlisting>
---- cache.c.perobjectlock 2003-12-11 17:15:03.000000000 +1100
-+++ cache.c.rcupdate 2003-12-11 17:55:14.000000000 +1100
-@@ -1,15 +1,18 @@
- #include &lt;linux/list.h&gt;
- #include &lt;linux/slab.h&gt;
- #include &lt;linux/string.h&gt;
-+#include &lt;linux/rcupdate.h&gt;
- #include &lt;linux/mutex.h&gt;
- #include &lt;asm/errno.h&gt;
-
- struct object
- {
-- /* These two protected by cache_lock. */
-+ /* This is protected by RCU */
- struct list_head list;
- int popularity;
-
-+ struct rcu_head rcu;
-+
- atomic_t refcnt;
-
- /* Doesn't change once created. */
-@@ -40,7 +43,7 @@
- {
- struct object *i;
-
-- list_for_each_entry(i, &amp;cache, list) {
-+ list_for_each_entry_rcu(i, &amp;cache, list) {
- if (i-&gt;id == id) {
- i-&gt;popularity++;
- return i;
-@@ -49,19 +52,25 @@
- return NULL;
- }
-
-+/* Final discard done once we know no readers are looking. */
-+static void cache_delete_rcu(void *arg)
-+{
-+ object_put(arg);
-+}
-+
- /* Must be holding cache_lock */
- static void __cache_delete(struct object *obj)
- {
- BUG_ON(!obj);
-- list_del(&amp;obj-&gt;list);
-- object_put(obj);
-+ list_del_rcu(&amp;obj-&gt;list);
- cache_num--;
-+ call_rcu(&amp;obj-&gt;rcu, cache_delete_rcu);
- }
-
- /* Must be holding cache_lock */
- static void __cache_add(struct object *obj)
- {
-- list_add(&amp;obj-&gt;list, &amp;cache);
-+ list_add_rcu(&amp;obj-&gt;list, &amp;cache);
- if (++cache_num > MAX_CACHE_SIZE) {
- struct object *i, *outcast = NULL;
- list_for_each_entry(i, &amp;cache, list) {
-@@ -104,12 +114,11 @@
- struct object *cache_find(int id)
- {
- struct object *obj;
-- unsigned long flags;
-
-- spin_lock_irqsave(&amp;cache_lock, flags);
-+ rcu_read_lock();
- obj = __cache_find(id);
- if (obj)
- object_get(obj);
-- spin_unlock_irqrestore(&amp;cache_lock, flags);
-+ rcu_read_unlock();
- return obj;
- }
-</programlisting>
-
-<para>
-Note that the reader will alter the
-<structfield>popularity</structfield> member in
-<function>__cache_find()</function>, and now it doesn't hold a lock.
-One solution would be to make it an <type>atomic_t</type>, but for
-this usage, we don't really care about races: an approximate result is
-good enough, so I didn't change it.
-</para>
-
-<para>
-The result is that <function>cache_find()</function> requires no
-synchronization with any other functions, so is almost as fast on SMP
-as it would be on UP.
-</para>
-
-<para>
-There is a further optimization possible here: remember our original
-cache code, where there were no reference counts and the caller simply
-held the lock whenever using the object? This is still possible: if
-you hold the lock, no one can delete the object, so you don't need to
-get and put the reference count.
-</para>
-
-<para>
-Now, because the 'read lock' in RCU is simply disabling preemption, a
-caller which always has preemption disabled between calling
-<function>cache_find()</function> and
-<function>object_put()</function> does not need to actually get and
-put the reference count: we could expose
-<function>__cache_find()</function> by making it non-static, and
-such callers could simply call that.
-</para>
-<para>
-The benefit here is that the reference count is not written to: the
-object is not altered in any way, which is much faster on SMP
-machines due to caching.
-</para>
- </sect1>
-
- <sect1 id="per-cpu">
- <title>Per-CPU Data</title>
-
- <para>
- Another technique for avoiding locking which is used fairly
- widely is to duplicate information for each CPU. For example,
- if you wanted to keep a count of a common condition, you could
- use a spin lock and a single counter. Nice and simple.
- </para>
-
- <para>
- If that was too slow (it's usually not, but if you've got a
- really big machine to test on and can show that it is), you
- could instead use a counter for each CPU, then none of them need
- an exclusive lock. See <function>DEFINE_PER_CPU()</function>,
- <function>get_cpu_var()</function> and
- <function>put_cpu_var()</function>
- (<filename class="headerfile">include/linux/percpu.h</filename>).
- </para>
-
- <para>
- Of particular use for simple per-cpu counters is the
- <type>local_t</type> type, and the
- <function>cpu_local_inc()</function> and related functions,
- which are more efficient than simple code on some architectures
- (<filename class="headerfile">include/asm/local.h</filename>).
- </para>
-
- <para>
- Note that there is no simple, reliable way of getting an exact
- value of such a counter, without introducing more locks. This
- is not a problem for some uses.
- </para>
- </sect1>
-
- <sect1 id="mostly-hardirq">
- <title>Data Which Mostly Used By An IRQ Handler</title>
-
- <para>
- If data is always accessed from within the same IRQ handler, you
- don't need a lock at all: the kernel already guarantees that the
- irq handler will not run simultaneously on multiple CPUs.
- </para>
- <para>
- Manfred Spraul points out that you can still do this, even if
- the data is very occasionally accessed in user context or
- softirqs/tasklets. The irq handler doesn't use a lock, and
- all other accesses are done as so:
- </para>
-
-<programlisting>
- spin_lock(&amp;lock);
- disable_irq(irq);
- ...
- enable_irq(irq);
- spin_unlock(&amp;lock);
-</programlisting>
- <para>
- The <function>disable_irq()</function> prevents the irq handler
- from running (and waits for it to finish if it's currently
- running on other CPUs). The spinlock prevents any other
- accesses happening at the same time. Naturally, this is slower
- than just a <function>spin_lock_irq()</function> call, so it
- only makes sense if this type of access happens extremely
- rarely.
- </para>
- </sect1>
- </chapter>
-
- <chapter id="sleeping-things">
- <title>What Functions Are Safe To Call From Interrupts?</title>
-
- <para>
- Many functions in the kernel sleep (ie. call schedule())
- directly or indirectly: you can never call them while holding a
- spinlock, or with preemption disabled. This also means you need
- to be in user context: calling them from an interrupt is illegal.
- </para>
-
- <sect1 id="sleeping">
- <title>Some Functions Which Sleep</title>
-
- <para>
- The most common ones are listed below, but you usually have to
- read the code to find out if other calls are safe. If everyone
- else who calls it can sleep, you probably need to be able to
- sleep, too. In particular, registration and deregistration
- functions usually expect to be called from user context, and can
- sleep.
- </para>
-
- <itemizedlist>
- <listitem>
- <para>
- Accesses to
- <firstterm linkend="gloss-userspace">userspace</firstterm>:
- </para>
- <itemizedlist>
- <listitem>
- <para>
- <function>copy_from_user()</function>
- </para>
- </listitem>
- <listitem>
- <para>
- <function>copy_to_user()</function>
- </para>
- </listitem>
- <listitem>
- <para>
- <function>get_user()</function>
- </para>
- </listitem>
- <listitem>
- <para>
- <function>put_user()</function>
- </para>
- </listitem>
- </itemizedlist>
- </listitem>
-
- <listitem>
- <para>
- <function>kmalloc(GFP_KERNEL)</function>
- </para>
- </listitem>
-
- <listitem>
- <para>
- <function>mutex_lock_interruptible()</function> and
- <function>mutex_lock()</function>
- </para>
- <para>
- There is a <function>mutex_trylock()</function> which does not
- sleep. Still, it must not be used inside interrupt context since
- its implementation is not safe for that.
- <function>mutex_unlock()</function> will also never sleep.
- It cannot be used in interrupt context either since a mutex
- must be released by the same task that acquired it.
- </para>
- </listitem>
- </itemizedlist>
- </sect1>
-
- <sect1 id="dont-sleep">
- <title>Some Functions Which Don't Sleep</title>
-
- <para>
- Some functions are safe to call from any context, or holding
- almost any lock.
- </para>
-
- <itemizedlist>
- <listitem>
- <para>
- <function>printk()</function>
- </para>
- </listitem>
- <listitem>
- <para>
- <function>kfree()</function>
- </para>
- </listitem>
- <listitem>
- <para>
- <function>add_timer()</function> and <function>del_timer()</function>
- </para>
- </listitem>
- </itemizedlist>
- </sect1>
- </chapter>
-
- <chapter id="apiref-mutex">
- <title>Mutex API reference</title>
-!Iinclude/linux/mutex.h
-!Ekernel/locking/mutex.c
- </chapter>
-
- <chapter id="apiref-futex">
- <title>Futex API reference</title>
-!Ikernel/futex.c
- </chapter>
-
- <chapter id="references">
- <title>Further reading</title>
-
- <itemizedlist>
- <listitem>
- <para>
- <filename>Documentation/locking/spinlocks.txt</filename>:
- Linus Torvalds' spinlocking tutorial in the kernel sources.
- </para>
- </listitem>
-
- <listitem>
- <para>
- Unix Systems for Modern Architectures: Symmetric
- Multiprocessing and Caching for Kernel Programmers:
- </para>
-
- <para>
- Curt Schimmel's very good introduction to kernel level
- locking (not written for Linux, but nearly everything
- applies). The book is expensive, but really worth every
- penny to understand SMP locking. [ISBN: 0201633388]
- </para>
- </listitem>
- </itemizedlist>
- </chapter>
-
- <chapter id="thanks">
- <title>Thanks</title>
-
- <para>
- Thanks to Telsa Gwynne for DocBooking, neatening and adding
- style.
- </para>
-
- <para>
- Thanks to Martin Pool, Philipp Rumpf, Stephen Rothwell, Paul
- Mackerras, Ruedi Aschwanden, Alan Cox, Manfred Spraul, Tim
- Waugh, Pete Zaitcev, James Morris, Robert Love, Paul McKenney,
- John Ashby for proofreading, correcting, flaming, commenting.
- </para>
-
- <para>
- Thanks to the cabal for having no influence on this document.
- </para>
- </chapter>
-
- <glossary id="glossary">
- <title>Glossary</title>
-
- <glossentry id="gloss-preemption">
- <glossterm>preemption</glossterm>
- <glossdef>
- <para>
- Prior to 2.5, or when <symbol>CONFIG_PREEMPT</symbol> is
- unset, processes in user context inside the kernel would not
- preempt each other (ie. you had that CPU until you gave it up,
- except for interrupts). With the addition of
- <symbol>CONFIG_PREEMPT</symbol> in 2.5.4, this changed: when
- in user context, higher priority tasks can "cut in": spinlocks
- were changed to disable preemption, even on UP.
- </para>
- </glossdef>
- </glossentry>
-
- <glossentry id="gloss-bh">
- <glossterm>bh</glossterm>
- <glossdef>
- <para>
- Bottom Half: for historical reasons, functions with
- '_bh' in them often now refer to any software interrupt, e.g.
- <function>spin_lock_bh()</function> blocks any software interrupt
- on the current CPU. Bottom halves are deprecated, and will
- eventually be replaced by tasklets. Only one bottom half will be
- running at any time.
- </para>
- </glossdef>
- </glossentry>
-
- <glossentry id="gloss-hwinterrupt">
- <glossterm>Hardware Interrupt / Hardware IRQ</glossterm>
- <glossdef>
- <para>
- Hardware interrupt request. <function>in_irq()</function> returns
- <returnvalue>true</returnvalue> in a hardware interrupt handler.
- </para>
- </glossdef>
- </glossentry>
-
- <glossentry id="gloss-interruptcontext">
- <glossterm>Interrupt Context</glossterm>
- <glossdef>
- <para>
- Not user context: processing a hardware irq or software irq.
- Indicated by the <function>in_interrupt()</function> macro
- returning <returnvalue>true</returnvalue>.
- </para>
- </glossdef>
- </glossentry>
-
- <glossentry id="gloss-smp">
- <glossterm><acronym>SMP</acronym></glossterm>
- <glossdef>
- <para>
- Symmetric Multi-Processor: kernels compiled for multiple-CPU
- machines. (CONFIG_SMP=y).
- </para>
- </glossdef>
- </glossentry>
-
- <glossentry id="gloss-softirq">
- <glossterm>Software Interrupt / softirq</glossterm>
- <glossdef>
- <para>
- Software interrupt handler. <function>in_irq()</function> returns
- <returnvalue>false</returnvalue>; <function>in_softirq()</function>
- returns <returnvalue>true</returnvalue>. Tasklets and softirqs
- both fall into the category of 'software interrupts'.
- </para>
- <para>
- Strictly speaking a softirq is one of up to 32 enumerated software
- interrupts which can run on multiple CPUs at once.
- Sometimes used to refer to tasklets as
- well (ie. all software interrupts).
- </para>
- </glossdef>
- </glossentry>
-
- <glossentry id="gloss-tasklet">
- <glossterm>tasklet</glossterm>
- <glossdef>
- <para>
- A dynamically-registrable software interrupt,
- which is guaranteed to only run on one CPU at a time.
- </para>
- </glossdef>
- </glossentry>
-
- <glossentry id="gloss-timers">
- <glossterm>timer</glossterm>
- <glossdef>
- <para>
- A dynamically-registrable software interrupt, which is run at
- (or close to) a given time. When running, it is just like a
- tasklet (in fact, they are called from the TIMER_SOFTIRQ).
- </para>
- </glossdef>
- </glossentry>
-
- <glossentry id="gloss-up">
- <glossterm><acronym>UP</acronym></glossterm>
- <glossdef>
- <para>
- Uni-Processor: Non-SMP. (CONFIG_SMP=n).
- </para>
- </glossdef>
- </glossentry>
-
- <glossentry id="gloss-usercontext">
- <glossterm>User Context</glossterm>
- <glossdef>
- <para>
- The kernel executing on behalf of a particular process (ie. a
- system call or trap) or kernel thread. You can tell which
- process with the <symbol>current</symbol> macro.) Not to
- be confused with userspace. Can be interrupted by software or
- hardware interrupts.
- </para>
- </glossdef>
- </glossentry>
-
- <glossentry id="gloss-userspace">
- <glossterm>Userspace</glossterm>
- <glossdef>
- <para>
- A process executing its own code outside the kernel.
- </para>
- </glossdef>
- </glossentry>
-
- </glossary>
-</book>
-
diff --git a/Documentation/DocBook/kgdb.tmpl b/Documentation/DocBook/kgdb.tmpl
deleted file mode 100644
index 856ac20bf367..000000000000
--- a/Documentation/DocBook/kgdb.tmpl
+++ /dev/null
@@ -1,918 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
-
-<book id="kgdbOnLinux">
- <bookinfo>
- <title>Using kgdb, kdb and the kernel debugger internals</title>
-
- <authorgroup>
- <author>
- <firstname>Jason</firstname>
- <surname>Wessel</surname>
- <affiliation>
- <address>
- <email>jason.wessel@windriver.com</email>
- </address>
- </affiliation>
- </author>
- </authorgroup>
- <copyright>
- <year>2008,2010</year>
- <holder>Wind River Systems, Inc.</holder>
- </copyright>
- <copyright>
- <year>2004-2005</year>
- <holder>MontaVista Software, Inc.</holder>
- </copyright>
- <copyright>
- <year>2004</year>
- <holder>Amit S. Kale</holder>
- </copyright>
-
- <legalnotice>
- <para>
- This file is licensed under the terms of the GNU General Public License
- version 2. This program is licensed "as is" without any warranty of any
- kind, whether express or implied.
- </para>
-
- </legalnotice>
- </bookinfo>
-
-<toc></toc>
- <chapter id="Introduction">
- <title>Introduction</title>
- <para>
- The kernel has two different debugger front ends (kdb and kgdb)
- which interface to the debug core. It is possible to use either
- of the debugger front ends and dynamically transition between them
- if you configure the kernel properly at compile and runtime.
- </para>
- <para>
- Kdb is simplistic shell-style interface which you can use on a
- system console with a keyboard or serial console. You can use it
- to inspect memory, registers, process lists, dmesg, and even set
- breakpoints to stop in a certain location. Kdb is not a source
- level debugger, although you can set breakpoints and execute some
- basic kernel run control. Kdb is mainly aimed at doing some
- analysis to aid in development or diagnosing kernel problems. You
- can access some symbols by name in kernel built-ins or in kernel
- modules if the code was built
- with <symbol>CONFIG_KALLSYMS</symbol>.
- </para>
- <para>
- Kgdb is intended to be used as a source level debugger for the
- Linux kernel. It is used along with gdb to debug a Linux kernel.
- The expectation is that gdb can be used to "break in" to the
- kernel to inspect memory, variables and look through call stack
- information similar to the way an application developer would use
- gdb to debug an application. It is possible to place breakpoints
- in kernel code and perform some limited execution stepping.
- </para>
- <para>
- Two machines are required for using kgdb. One of these machines is
- a development machine and the other is the target machine. The
- kernel to be debugged runs on the target machine. The development
- machine runs an instance of gdb against the vmlinux file which
- contains the symbols (not a boot image such as bzImage, zImage,
- uImage...). In gdb the developer specifies the connection
- parameters and connects to kgdb. The type of connection a
- developer makes with gdb depends on the availability of kgdb I/O
- modules compiled as built-ins or loadable kernel modules in the test
- machine's kernel.
- </para>
- </chapter>
- <chapter id="CompilingAKernel">
- <title>Compiling a kernel</title>
- <para>
- <itemizedlist>
- <listitem><para>In order to enable compilation of kdb, you must first enable kgdb.</para></listitem>
- <listitem><para>The kgdb test compile options are described in the kgdb test suite chapter.</para></listitem>
- </itemizedlist>
- </para>
- <sect1 id="CompileKGDB">
- <title>Kernel config options for kgdb</title>
- <para>
- To enable <symbol>CONFIG_KGDB</symbol> you should look under
- "Kernel hacking" / "Kernel debugging" and select "KGDB: kernel debugger".
- </para>
- <para>
- While it is not a hard requirement that you have symbols in your
- vmlinux file, gdb tends not to be very useful without the symbolic
- data, so you will want to turn
- on <symbol>CONFIG_DEBUG_INFO</symbol> which is called "Compile the
- kernel with debug info" in the config menu.
- </para>
- <para>
- It is advised, but not required, that you turn on the
- <symbol>CONFIG_FRAME_POINTER</symbol> kernel option which is called "Compile the
- kernel with frame pointers" in the config menu. This option
- inserts code to into the compiled executable which saves the frame
- information in registers or on the stack at different points which
- allows a debugger such as gdb to more accurately construct
- stack back traces while debugging the kernel.
- </para>
- <para>
- If the architecture that you are using supports the kernel option
- CONFIG_STRICT_KERNEL_RWX, you should consider turning it off. This
- option will prevent the use of software breakpoints because it
- marks certain regions of the kernel's memory space as read-only.
- If kgdb supports it for the architecture you are using, you can
- use hardware breakpoints if you desire to run with the
- CONFIG_STRICT_KERNEL_RWX option turned on, else you need to turn off
- this option.
- </para>
- <para>
- Next you should choose one of more I/O drivers to interconnect
- debugging host and debugged target. Early boot debugging requires
- a KGDB I/O driver that supports early debugging and the driver
- must be built into the kernel directly. Kgdb I/O driver
- configuration takes place via kernel or module parameters which
- you can learn more about in the in the section that describes the
- parameter "kgdboc".
- </para>
- <para>Here is an example set of .config symbols to enable or
- disable for kgdb:
- <itemizedlist>
- <listitem><para># CONFIG_STRICT_KERNEL_RWX is not set</para></listitem>
- <listitem><para>CONFIG_FRAME_POINTER=y</para></listitem>
- <listitem><para>CONFIG_KGDB=y</para></listitem>
- <listitem><para>CONFIG_KGDB_SERIAL_CONSOLE=y</para></listitem>
- </itemizedlist>
- </para>
- </sect1>
- <sect1 id="CompileKDB">
- <title>Kernel config options for kdb</title>
- <para>Kdb is quite a bit more complex than the simple gdbstub
- sitting on top of the kernel's debug core. Kdb must implement a
- shell, and also adds some helper functions in other parts of the
- kernel, responsible for printing out interesting data such as what
- you would see if you ran "lsmod", or "ps". In order to build kdb
- into the kernel you follow the same steps as you would for kgdb.
- </para>
- <para>The main config option for kdb
- is <symbol>CONFIG_KGDB_KDB</symbol> which is called "KGDB_KDB:
- include kdb frontend for kgdb" in the config menu. In theory you
- would have already also selected an I/O driver such as the
- CONFIG_KGDB_SERIAL_CONSOLE interface if you plan on using kdb on a
- serial port, when you were configuring kgdb.
- </para>
- <para>If you want to use a PS/2-style keyboard with kdb, you would
- select CONFIG_KDB_KEYBOARD which is called "KGDB_KDB: keyboard as
- input device" in the config menu. The CONFIG_KDB_KEYBOARD option
- is not used for anything in the gdb interface to kgdb. The
- CONFIG_KDB_KEYBOARD option only works with kdb.
- </para>
- <para>Here is an example set of .config symbols to enable/disable kdb:
- <itemizedlist>
- <listitem><para># CONFIG_STRICT_KERNEL_RWX is not set</para></listitem>
- <listitem><para>CONFIG_FRAME_POINTER=y</para></listitem>
- <listitem><para>CONFIG_KGDB=y</para></listitem>
- <listitem><para>CONFIG_KGDB_SERIAL_CONSOLE=y</para></listitem>
- <listitem><para>CONFIG_KGDB_KDB=y</para></listitem>
- <listitem><para>CONFIG_KDB_KEYBOARD=y</para></listitem>
- </itemizedlist>
- </para>
- </sect1>
- </chapter>
- <chapter id="kgdbKernelArgs">
- <title>Kernel Debugger Boot Arguments</title>
- <para>This section describes the various runtime kernel
- parameters that affect the configuration of the kernel debugger.
- The following chapter covers using kdb and kgdb as well as
- providing some examples of the configuration parameters.</para>
- <sect1 id="kgdboc">
- <title>Kernel parameter: kgdboc</title>
- <para>The kgdboc driver was originally an abbreviation meant to
- stand for "kgdb over console". Today it is the primary mechanism
- to configure how to communicate from gdb to kgdb as well as the
- devices you want to use to interact with the kdb shell.
- </para>
- <para>For kgdb/gdb, kgdboc is designed to work with a single serial
- port. It is intended to cover the circumstance where you want to
- use a serial console as your primary console as well as using it to
- perform kernel debugging. It is also possible to use kgdb on a
- serial port which is not designated as a system console. Kgdboc
- may be configured as a kernel built-in or a kernel loadable module.
- You can only make use of <constant>kgdbwait</constant> and early
- debugging if you build kgdboc into the kernel as a built-in.
- </para>
- <para>Optionally you can elect to activate kms (Kernel Mode
- Setting) integration. When you use kms with kgdboc and you have a
- video driver that has atomic mode setting hooks, it is possible to
- enter the debugger on the graphics console. When the kernel
- execution is resumed, the previous graphics mode will be restored.
- This integration can serve as a useful tool to aid in diagnosing
- crashes or doing analysis of memory with kdb while allowing the
- full graphics console applications to run.
- </para>
- <sect2 id="kgdbocArgs">
- <title>kgdboc arguments</title>
- <para>Usage: <constant>kgdboc=[kms][[,]kbd][[,]serial_device][,baud]</constant></para>
- <para>The order listed above must be observed if you use any of the
- optional configurations together.
- </para>
- <para>Abbreviations:
- <itemizedlist>
- <listitem><para>kms = Kernel Mode Setting</para></listitem>
- <listitem><para>kbd = Keyboard</para></listitem>
- </itemizedlist>
- </para>
- <para>You can configure kgdboc to use the keyboard, and/or a serial
- device depending on if you are using kdb and/or kgdb, in one of the
- following scenarios. The order listed above must be observed if
- you use any of the optional configurations together. Using kms +
- only gdb is generally not a useful combination.</para>
- <sect3 id="kgdbocArgs1">
- <title>Using loadable module or built-in</title>
- <para>
- <orderedlist>
- <listitem><para>As a kernel built-in:</para>
- <para>Use the kernel boot argument: <constant>kgdboc=&lt;tty-device&gt;,[baud]</constant></para></listitem>
- <listitem>
- <para>As a kernel loadable module:</para>
- <para>Use the command: <constant>modprobe kgdboc kgdboc=&lt;tty-device&gt;,[baud]</constant></para>
- <para>Here are two examples of how you might format the kgdboc
- string. The first is for an x86 target using the first serial port.
- The second example is for the ARM Versatile AB using the second
- serial port.
- <orderedlist>
- <listitem><para><constant>kgdboc=ttyS0,115200</constant></para></listitem>
- <listitem><para><constant>kgdboc=ttyAMA1,115200</constant></para></listitem>
- </orderedlist>
- </para>
- </listitem>
- </orderedlist></para>
- </sect3>
- <sect3 id="kgdbocArgs2">
- <title>Configure kgdboc at runtime with sysfs</title>
- <para>At run time you can enable or disable kgdboc by echoing a
- parameters into the sysfs. Here are two examples:</para>
- <orderedlist>
- <listitem><para>Enable kgdboc on ttyS0</para>
- <para><constant>echo ttyS0 &gt; /sys/module/kgdboc/parameters/kgdboc</constant></para></listitem>
- <listitem><para>Disable kgdboc</para>
- <para><constant>echo "" &gt; /sys/module/kgdboc/parameters/kgdboc</constant></para></listitem>
- </orderedlist>
- <para>NOTE: You do not need to specify the baud if you are
- configuring the console on tty which is already configured or
- open.</para>
- </sect3>
- <sect3 id="kgdbocArgs3">
- <title>More examples</title>
- <para>You can configure kgdboc to use the keyboard, and/or a serial device
- depending on if you are using kdb and/or kgdb, in one of the
- following scenarios.
- <orderedlist>
- <listitem><para>kdb and kgdb over only a serial port</para>
- <para><constant>kgdboc=&lt;serial_device&gt;[,baud]</constant></para>
- <para>Example: <constant>kgdboc=ttyS0,115200</constant></para>
- </listitem>
- <listitem><para>kdb and kgdb with keyboard and a serial port</para>
- <para><constant>kgdboc=kbd,&lt;serial_device&gt;[,baud]</constant></para>
- <para>Example: <constant>kgdboc=kbd,ttyS0,115200</constant></para>
- </listitem>
- <listitem><para>kdb with a keyboard</para>
- <para><constant>kgdboc=kbd</constant></para>
- </listitem>
- <listitem><para>kdb with kernel mode setting</para>
- <para><constant>kgdboc=kms,kbd</constant></para>
- </listitem>
- <listitem><para>kdb with kernel mode setting and kgdb over a serial port</para>
- <para><constant>kgdboc=kms,kbd,ttyS0,115200</constant></para>
- </listitem>
- </orderedlist>
- </para>
- <para>NOTE: Kgdboc does not support interrupting the target via the
- gdb remote protocol. You must manually send a sysrq-g unless you
- have a proxy that splits console output to a terminal program.
- A console proxy has a separate TCP port for the debugger and a separate
- TCP port for the "human" console. The proxy can take care of sending
- the sysrq-g for you.
- </para>
- <para>When using kgdboc with no debugger proxy, you can end up
- connecting the debugger at one of two entry points. If an
- exception occurs after you have loaded kgdboc, a message should
- print on the console stating it is waiting for the debugger. In
- this case you disconnect your terminal program and then connect the
- debugger in its place. If you want to interrupt the target system
- and forcibly enter a debug session you have to issue a Sysrq
- sequence and then type the letter <constant>g</constant>. Then
- you disconnect the terminal session and connect gdb. Your options
- if you don't like this are to hack gdb to send the sysrq-g for you
- as well as on the initial connect, or to use a debugger proxy that
- allows an unmodified gdb to do the debugging.
- </para>
- </sect3>
- </sect2>
- </sect1>
- <sect1 id="kgdbwait">
- <title>Kernel parameter: kgdbwait</title>
- <para>
- The Kernel command line option <constant>kgdbwait</constant> makes
- kgdb wait for a debugger connection during booting of a kernel. You
- can only use this option if you compiled a kgdb I/O driver into the
- kernel and you specified the I/O driver configuration as a kernel
- command line option. The kgdbwait parameter should always follow the
- configuration parameter for the kgdb I/O driver in the kernel
- command line else the I/O driver will not be configured prior to
- asking the kernel to use it to wait.
- </para>
- <para>
- The kernel will stop and wait as early as the I/O driver and
- architecture allows when you use this option. If you build the
- kgdb I/O driver as a loadable kernel module kgdbwait will not do
- anything.
- </para>
- </sect1>
- <sect1 id="kgdbcon">
- <title>Kernel parameter: kgdbcon</title>
- <para> The kgdbcon feature allows you to see printk() messages
- inside gdb while gdb is connected to the kernel. Kdb does not make
- use of the kgdbcon feature.
- </para>
- <para>Kgdb supports using the gdb serial protocol to send console
- messages to the debugger when the debugger is connected and running.
- There are two ways to activate this feature.
- <orderedlist>
- <listitem><para>Activate with the kernel command line option:</para>
- <para><constant>kgdbcon</constant></para>
- </listitem>
- <listitem><para>Use sysfs before configuring an I/O driver</para>
- <para>
- <constant>echo 1 &gt; /sys/module/kgdb/parameters/kgdb_use_con</constant>
- </para>
- <para>
- NOTE: If you do this after you configure the kgdb I/O driver, the
- setting will not take effect until the next point the I/O is
- reconfigured.
- </para>
- </listitem>
- </orderedlist>
- </para>
- <para>IMPORTANT NOTE: You cannot use kgdboc + kgdbcon on a tty that is an
- active system console. An example of incorrect usage is <constant>console=ttyS0,115200 kgdboc=ttyS0 kgdbcon</constant>
- </para>
- <para>It is possible to use this option with kgdboc on a tty that is not a system console.
- </para>
- </sect1>
- <sect1 id="kgdbreboot">
- <title>Run time parameter: kgdbreboot</title>
- <para> The kgdbreboot feature allows you to change how the debugger
- deals with the reboot notification. You have 3 choices for the
- behavior. The default behavior is always set to 0.</para>
- <orderedlist>
- <listitem><para>echo -1 > /sys/module/debug_core/parameters/kgdbreboot</para>
- <para>Ignore the reboot notification entirely.</para>
- </listitem>
- <listitem><para>echo 0 > /sys/module/debug_core/parameters/kgdbreboot</para>
- <para>Send the detach message to any attached debugger client.</para>
- </listitem>
- <listitem><para>echo 1 > /sys/module/debug_core/parameters/kgdbreboot</para>
- <para>Enter the debugger on reboot notify.</para>
- </listitem>
- </orderedlist>
- </sect1>
- </chapter>
- <chapter id="usingKDB">
- <title>Using kdb</title>
- <para>
- </para>
- <sect1 id="quickKDBserial">
- <title>Quick start for kdb on a serial port</title>
- <para>This is a quick example of how to use kdb.</para>
- <para><orderedlist>
- <listitem><para>Configure kgdboc at boot using kernel parameters:
- <itemizedlist>
- <listitem><para><constant>console=ttyS0,115200 kgdboc=ttyS0,115200</constant></para></listitem>
- </itemizedlist></para>
- <para>OR</para>
- <para>Configure kgdboc after the kernel has booted; assuming you are using a serial port console:
- <itemizedlist>
- <listitem><para><constant>echo ttyS0 &gt; /sys/module/kgdboc/parameters/kgdboc</constant></para></listitem>
- </itemizedlist>
- </para>
- </listitem>
- <listitem><para>Enter the kernel debugger manually or by waiting for an oops or fault. There are several ways you can enter the kernel debugger manually; all involve using the sysrq-g, which means you must have enabled CONFIG_MAGIC_SYSRQ=y in your kernel config.</para>
- <itemizedlist>
- <listitem><para>When logged in as root or with a super user session you can run:</para>
- <para><constant>echo g &gt; /proc/sysrq-trigger</constant></para></listitem>
- <listitem><para>Example using minicom 2.2</para>
- <para>Press: <constant>Control-a</constant></para>
- <para>Press: <constant>f</constant></para>
- <para>Press: <constant>g</constant></para>
- </listitem>
- <listitem><para>When you have telneted to a terminal server that supports sending a remote break</para>
- <para>Press: <constant>Control-]</constant></para>
- <para>Type in:<constant>send break</constant></para>
- <para>Press: <constant>Enter</constant></para>
- <para>Press: <constant>g</constant></para>
- </listitem>
- </itemizedlist>
- </listitem>
- <listitem><para>From the kdb prompt you can run the "help" command to see a complete list of the commands that are available.</para>
- <para>Some useful commands in kdb include:
- <itemizedlist>
- <listitem><para>lsmod -- Shows where kernel modules are loaded</para></listitem>
- <listitem><para>ps -- Displays only the active processes</para></listitem>
- <listitem><para>ps A -- Shows all the processes</para></listitem>
- <listitem><para>summary -- Shows kernel version info and memory usage</para></listitem>
- <listitem><para>bt -- Get a backtrace of the current process using dump_stack()</para></listitem>
- <listitem><para>dmesg -- View the kernel syslog buffer</para></listitem>
- <listitem><para>go -- Continue the system</para></listitem>
- </itemizedlist>
- </para>
- </listitem>
- <listitem>
- <para>When you are done using kdb you need to consider rebooting the
- system or using the "go" command to resuming normal kernel
- execution. If you have paused the kernel for a lengthy period of
- time, applications that rely on timely networking or anything to do
- with real wall clock time could be adversely affected, so you
- should take this into consideration when using the kernel
- debugger.</para>
- </listitem>
- </orderedlist></para>
- </sect1>
- <sect1 id="quickKDBkeyboard">
- <title>Quick start for kdb using a keyboard connected console</title>
- <para>This is a quick example of how to use kdb with a keyboard.</para>
- <para><orderedlist>
- <listitem><para>Configure kgdboc at boot using kernel parameters:
- <itemizedlist>
- <listitem><para><constant>kgdboc=kbd</constant></para></listitem>
- </itemizedlist></para>
- <para>OR</para>
- <para>Configure kgdboc after the kernel has booted:
- <itemizedlist>
- <listitem><para><constant>echo kbd &gt; /sys/module/kgdboc/parameters/kgdboc</constant></para></listitem>
- </itemizedlist>
- </para>
- </listitem>
- <listitem><para>Enter the kernel debugger manually or by waiting for an oops or fault. There are several ways you can enter the kernel debugger manually; all involve using the sysrq-g, which means you must have enabled CONFIG_MAGIC_SYSRQ=y in your kernel config.</para>
- <itemizedlist>
- <listitem><para>When logged in as root or with a super user session you can run:</para>
- <para><constant>echo g &gt; /proc/sysrq-trigger</constant></para></listitem>
- <listitem><para>Example using a laptop keyboard</para>
- <para>Press and hold down: <constant>Alt</constant></para>
- <para>Press and hold down: <constant>Fn</constant></para>
- <para>Press and release the key with the label: <constant>SysRq</constant></para>
- <para>Release: <constant>Fn</constant></para>
- <para>Press and release: <constant>g</constant></para>
- <para>Release: <constant>Alt</constant></para>
- </listitem>
- <listitem><para>Example using a PS/2 101-key keyboard</para>
- <para>Press and hold down: <constant>Alt</constant></para>
- <para>Press and release the key with the label: <constant>SysRq</constant></para>
- <para>Press and release: <constant>g</constant></para>
- <para>Release: <constant>Alt</constant></para>
- </listitem>
- </itemizedlist>
- </listitem>
- <listitem>
- <para>Now type in a kdb command such as "help", "dmesg", "bt" or "go" to continue kernel execution.</para>
- </listitem>
- </orderedlist></para>
- </sect1>
- </chapter>
- <chapter id="EnableKGDB">
- <title>Using kgdb / gdb</title>
- <para>In order to use kgdb you must activate it by passing
- configuration information to one of the kgdb I/O drivers. If you
- do not pass any configuration information kgdb will not do anything
- at all. Kgdb will only actively hook up to the kernel trap hooks
- if a kgdb I/O driver is loaded and configured. If you unconfigure
- a kgdb I/O driver, kgdb will unregister all the kernel hook points.
- </para>
- <para> All kgdb I/O drivers can be reconfigured at run time, if
- <symbol>CONFIG_SYSFS</symbol> and <symbol>CONFIG_MODULES</symbol>
- are enabled, by echo'ing a new config string to
- <constant>/sys/module/&lt;driver&gt;/parameter/&lt;option&gt;</constant>.
- The driver can be unconfigured by passing an empty string. You cannot
- change the configuration while the debugger is attached. Make sure
- to detach the debugger with the <constant>detach</constant> command
- prior to trying to unconfigure a kgdb I/O driver.
- </para>
- <sect1 id="ConnectingGDB">
- <title>Connecting with gdb to a serial port</title>
- <orderedlist>
- <listitem><para>Configure kgdboc</para>
- <para>Configure kgdboc at boot using kernel parameters:
- <itemizedlist>
- <listitem><para><constant>kgdboc=ttyS0,115200</constant></para></listitem>
- </itemizedlist></para>
- <para>OR</para>
- <para>Configure kgdboc after the kernel has booted:
- <itemizedlist>
- <listitem><para><constant>echo ttyS0 &gt; /sys/module/kgdboc/parameters/kgdboc</constant></para></listitem>
- </itemizedlist></para>
- </listitem>
- <listitem>
- <para>Stop kernel execution (break into the debugger)</para>
- <para>In order to connect to gdb via kgdboc, the kernel must
- first be stopped. There are several ways to stop the kernel which
- include using kgdbwait as a boot argument, via a sysrq-g, or running
- the kernel until it takes an exception where it waits for the
- debugger to attach.
- <itemizedlist>
- <listitem><para>When logged in as root or with a super user session you can run:</para>
- <para><constant>echo g &gt; /proc/sysrq-trigger</constant></para></listitem>
- <listitem><para>Example using minicom 2.2</para>
- <para>Press: <constant>Control-a</constant></para>
- <para>Press: <constant>f</constant></para>
- <para>Press: <constant>g</constant></para>
- </listitem>
- <listitem><para>When you have telneted to a terminal server that supports sending a remote break</para>
- <para>Press: <constant>Control-]</constant></para>
- <para>Type in:<constant>send break</constant></para>
- <para>Press: <constant>Enter</constant></para>
- <para>Press: <constant>g</constant></para>
- </listitem>
- </itemizedlist>
- </para>
- </listitem>
- <listitem>
- <para>Connect from gdb</para>
- <para>
- Example (using a directly connected port):
- </para>
- <programlisting>
- % gdb ./vmlinux
- (gdb) set remotebaud 115200
- (gdb) target remote /dev/ttyS0
- </programlisting>
- <para>
- Example (kgdb to a terminal server on TCP port 2012):
- </para>
- <programlisting>
- % gdb ./vmlinux
- (gdb) target remote 192.168.2.2:2012
- </programlisting>
- <para>
- Once connected, you can debug a kernel the way you would debug an
- application program.
- </para>
- <para>
- If you are having problems connecting or something is going
- seriously wrong while debugging, it will most often be the case
- that you want to enable gdb to be verbose about its target
- communications. You do this prior to issuing the <constant>target
- remote</constant> command by typing in: <constant>set debug remote 1</constant>
- </para>
- </listitem>
- </orderedlist>
- <para>Remember if you continue in gdb, and need to "break in" again,
- you need to issue an other sysrq-g. It is easy to create a simple
- entry point by putting a breakpoint at <constant>sys_sync</constant>
- and then you can run "sync" from a shell or script to break into the
- debugger.</para>
- </sect1>
- </chapter>
- <chapter id="switchKdbKgdb">
- <title>kgdb and kdb interoperability</title>
- <para>It is possible to transition between kdb and kgdb dynamically.
- The debug core will remember which you used the last time and
- automatically start in the same mode.</para>
- <sect1>
- <title>Switching between kdb and kgdb</title>
- <sect2>
- <title>Switching from kgdb to kdb</title>
- <para>
- There are two ways to switch from kgdb to kdb: you can use gdb to
- issue a maintenance packet, or you can blindly type the command $3#33.
- Whenever the kernel debugger stops in kgdb mode it will print the
- message <constant>KGDB or $3#33 for KDB</constant>. It is important
- to note that you have to type the sequence correctly in one pass.
- You cannot type a backspace or delete because kgdb will interpret
- that as part of the debug stream.
- <orderedlist>
- <listitem><para>Change from kgdb to kdb by blindly typing:</para>
- <para><constant>$3#33</constant></para></listitem>
- <listitem><para>Change from kgdb to kdb with gdb</para>
- <para><constant>maintenance packet 3</constant></para>
- <para>NOTE: Now you must kill gdb. Typically you press control-z and
- issue the command: kill -9 %</para></listitem>
- </orderedlist>
- </para>
- </sect2>
- <sect2>
- <title>Change from kdb to kgdb</title>
- <para>There are two ways you can change from kdb to kgdb. You can
- manually enter kgdb mode by issuing the kgdb command from the kdb
- shell prompt, or you can connect gdb while the kdb shell prompt is
- active. The kdb shell looks for the typical first commands that gdb
- would issue with the gdb remote protocol and if it sees one of those
- commands it automatically changes into kgdb mode.</para>
- <orderedlist>
- <listitem><para>From kdb issue the command:</para>
- <para><constant>kgdb</constant></para>
- <para>Now disconnect your terminal program and connect gdb in its place</para></listitem>
- <listitem><para>At the kdb prompt, disconnect the terminal program and connect gdb in its place.</para></listitem>
- </orderedlist>
- </sect2>
- </sect1>
- <sect1>
- <title>Running kdb commands from gdb</title>
- <para>It is possible to run a limited set of kdb commands from gdb,
- using the gdb monitor command. You don't want to execute any of the
- run control or breakpoint operations, because it can disrupt the
- state of the kernel debugger. You should be using gdb for
- breakpoints and run control operations if you have gdb connected.
- The more useful commands to run are things like lsmod, dmesg, ps or
- possibly some of the memory information commands. To see all the kdb
- commands you can run <constant>monitor help</constant>.</para>
- <para>Example:
- <informalexample><programlisting>
-(gdb) monitor ps
-1 idle process (state I) and
-27 sleeping system daemon (state M) processes suppressed,
-use 'ps A' to see all.
-Task Addr Pid Parent [*] cpu State Thread Command
-
-0xc78291d0 1 0 0 0 S 0xc7829404 init
-0xc7954150 942 1 0 0 S 0xc7954384 dropbear
-0xc78789c0 944 1 0 0 S 0xc7878bf4 sh
-(gdb)
- </programlisting></informalexample>
- </para>
- </sect1>
- </chapter>
- <chapter id="KGDBTestSuite">
- <title>kgdb Test Suite</title>
- <para>
- When kgdb is enabled in the kernel config you can also elect to
- enable the config parameter KGDB_TESTS. Turning this on will
- enable a special kgdb I/O module which is designed to test the
- kgdb internal functions.
- </para>
- <para>
- The kgdb tests are mainly intended for developers to test the kgdb
- internals as well as a tool for developing a new kgdb architecture
- specific implementation. These tests are not really for end users
- of the Linux kernel. The primary source of documentation would be
- to look in the drivers/misc/kgdbts.c file.
- </para>
- <para>
- The kgdb test suite can also be configured at compile time to run
- the core set of tests by setting the kernel config parameter
- KGDB_TESTS_ON_BOOT. This particular option is aimed at automated
- regression testing and does not require modifying the kernel boot
- config arguments. If this is turned on, the kgdb test suite can
- be disabled by specifying "kgdbts=" as a kernel boot argument.
- </para>
- </chapter>
- <chapter id="CommonBackEndReq">
- <title>Kernel Debugger Internals</title>
- <sect1 id="kgdbArchitecture">
- <title>Architecture Specifics</title>
- <para>
- The kernel debugger is organized into a number of components:
- <orderedlist>
- <listitem><para>The debug core</para>
- <para>
- The debug core is found in kernel/debugger/debug_core.c. It contains:
- <itemizedlist>
- <listitem><para>A generic OS exception handler which includes
- sync'ing the processors into a stopped state on an multi-CPU
- system.</para></listitem>
- <listitem><para>The API to talk to the kgdb I/O drivers</para></listitem>
- <listitem><para>The API to make calls to the arch-specific kgdb implementation</para></listitem>
- <listitem><para>The logic to perform safe memory reads and writes to memory while using the debugger</para></listitem>
- <listitem><para>A full implementation for software breakpoints unless overridden by the arch</para></listitem>
- <listitem><para>The API to invoke either the kdb or kgdb frontend to the debug core.</para></listitem>
- <listitem><para>The structures and callback API for atomic kernel mode setting.</para>
- <para>NOTE: kgdboc is where the kms callbacks are invoked.</para></listitem>
- </itemizedlist>
- </para>
- </listitem>
- <listitem><para>kgdb arch-specific implementation</para>
- <para>
- This implementation is generally found in arch/*/kernel/kgdb.c.
- As an example, arch/x86/kernel/kgdb.c contains the specifics to
- implement HW breakpoint as well as the initialization to
- dynamically register and unregister for the trap handlers on
- this architecture. The arch-specific portion implements:
- <itemizedlist>
- <listitem><para>contains an arch-specific trap catcher which
- invokes kgdb_handle_exception() to start kgdb about doing its
- work</para></listitem>
- <listitem><para>translation to and from gdb specific packet format to pt_regs</para></listitem>
- <listitem><para>Registration and unregistration of architecture specific trap hooks</para></listitem>
- <listitem><para>Any special exception handling and cleanup</para></listitem>
- <listitem><para>NMI exception handling and cleanup</para></listitem>
- <listitem><para>(optional) HW breakpoints</para></listitem>
- </itemizedlist>
- </para>
- </listitem>
- <listitem><para>gdbstub frontend (aka kgdb)</para>
- <para>The gdbstub is located in kernel/debug/gdbstub.c. It contains:</para>
- <itemizedlist>
- <listitem><para>All the logic to implement the gdb serial protocol</para></listitem>
- </itemizedlist>
- </listitem>
- <listitem><para>kdb frontend</para>
- <para>The kdb debugger shell is broken down into a number of
- components. The kdb core is located in kernel/debug/kdb. There
- are a number of helper functions in some of the other kernel
- components to make it possible for kdb to examine and report
- information about the kernel without taking locks that could
- cause a kernel deadlock. The kdb core contains implements the following functionality.</para>
- <itemizedlist>
- <listitem><para>A simple shell</para></listitem>
- <listitem><para>The kdb core command set</para></listitem>
- <listitem><para>A registration API to register additional kdb shell commands.</para>
- <itemizedlist>
- <listitem><para>A good example of a self-contained kdb module
- is the "ftdump" command for dumping the ftrace buffer. See:
- kernel/trace/trace_kdb.c</para></listitem>
- <listitem><para>For an example of how to dynamically register
- a new kdb command you can build the kdb_hello.ko kernel module
- from samples/kdb/kdb_hello.c. To build this example you can
- set CONFIG_SAMPLES=y and CONFIG_SAMPLE_KDB=m in your kernel
- config. Later run "modprobe kdb_hello" and the next time you
- enter the kdb shell, you can run the "hello"
- command.</para></listitem>
- </itemizedlist></listitem>
- <listitem><para>The implementation for kdb_printf() which
- emits messages directly to I/O drivers, bypassing the kernel
- log.</para></listitem>
- <listitem><para>SW / HW breakpoint management for the kdb shell</para></listitem>
- </itemizedlist>
- </listitem>
- <listitem><para>kgdb I/O driver</para>
- <para>
- Each kgdb I/O driver has to provide an implementation for the following:
- <itemizedlist>
- <listitem><para>configuration via built-in or module</para></listitem>
- <listitem><para>dynamic configuration and kgdb hook registration calls</para></listitem>
- <listitem><para>read and write character interface</para></listitem>
- <listitem><para>A cleanup handler for unconfiguring from the kgdb core</para></listitem>
- <listitem><para>(optional) Early debug methodology</para></listitem>
- </itemizedlist>
- Any given kgdb I/O driver has to operate very closely with the
- hardware and must do it in such a way that does not enable
- interrupts or change other parts of the system context without
- completely restoring them. The kgdb core will repeatedly "poll"
- a kgdb I/O driver for characters when it needs input. The I/O
- driver is expected to return immediately if there is no data
- available. Doing so allows for the future possibility to touch
- watchdog hardware in such a way as to have a target system not
- reset when these are enabled.
- </para>
- </listitem>
- </orderedlist>
- </para>
- <para>
- If you are intent on adding kgdb architecture specific support
- for a new architecture, the architecture should define
- <constant>HAVE_ARCH_KGDB</constant> in the architecture specific
- Kconfig file. This will enable kgdb for the architecture, and
- at that point you must create an architecture specific kgdb
- implementation.
- </para>
- <para>
- There are a few flags which must be set on every architecture in
- their &lt;asm/kgdb.h&gt; file. These are:
- <itemizedlist>
- <listitem>
- <para>
- NUMREGBYTES: The size in bytes of all of the registers, so
- that we can ensure they will all fit into a packet.
- </para>
- </listitem>
- <listitem>
- <para>
- BUFMAX: The size in bytes of the buffer GDB will read into.
- This must be larger than NUMREGBYTES.
- </para>
- </listitem>
- <listitem>
- <para>
- CACHE_FLUSH_IS_SAFE: Set to 1 if it is always safe to call
- flush_cache_range or flush_icache_range. On some architectures,
- these functions may not be safe to call on SMP since we keep other
- CPUs in a holding pattern.
- </para>
- </listitem>
- </itemizedlist>
- </para>
- <para>
- There are also the following functions for the common backend,
- found in kernel/kgdb.c, that must be supplied by the
- architecture-specific backend unless marked as (optional), in
- which case a default function maybe used if the architecture
- does not need to provide a specific implementation.
- </para>
-!Iinclude/linux/kgdb.h
- </sect1>
- <sect1 id="kgdbocDesign">
- <title>kgdboc internals</title>
- <sect2>
- <title>kgdboc and uarts</title>
- <para>
- The kgdboc driver is actually a very thin driver that relies on the
- underlying low level to the hardware driver having "polling hooks"
- to which the tty driver is attached. In the initial
- implementation of kgdboc the serial_core was changed to expose a
- low level UART hook for doing polled mode reading and writing of a
- single character while in an atomic context. When kgdb makes an I/O
- request to the debugger, kgdboc invokes a callback in the serial
- core which in turn uses the callback in the UART driver.</para>
- <para>
- When using kgdboc with a UART, the UART driver must implement two callbacks in the <constant>struct uart_ops</constant>. Example from drivers/8250.c:<programlisting>
-#ifdef CONFIG_CONSOLE_POLL
- .poll_get_char = serial8250_get_poll_char,
- .poll_put_char = serial8250_put_poll_char,
-#endif
- </programlisting>
- Any implementation specifics around creating a polling driver use the
- <constant>#ifdef CONFIG_CONSOLE_POLL</constant>, as shown above.
- Keep in mind that polling hooks have to be implemented in such a way
- that they can be called from an atomic context and have to restore
- the state of the UART chip on return such that the system can return
- to normal when the debugger detaches. You need to be very careful
- with any kind of lock you consider, because failing here is most likely
- going to mean pressing the reset button.
- </para>
- </sect2>
- <sect2 id="kgdbocKbd">
- <title>kgdboc and keyboards</title>
- <para>The kgdboc driver contains logic to configure communications
- with an attached keyboard. The keyboard infrastructure is only
- compiled into the kernel when CONFIG_KDB_KEYBOARD=y is set in the
- kernel configuration.</para>
- <para>The core polled keyboard driver driver for PS/2 type keyboards
- is in drivers/char/kdb_keyboard.c. This driver is hooked into the
- debug core when kgdboc populates the callback in the array
- called <constant>kdb_poll_funcs[]</constant>. The
- kdb_get_kbd_char() is the top-level function which polls hardware
- for single character input.
- </para>
- </sect2>
- <sect2 id="kgdbocKms">
- <title>kgdboc and kms</title>
- <para>The kgdboc driver contains logic to request the graphics
- display to switch to a text context when you are using
- "kgdboc=kms,kbd", provided that you have a video driver which has a
- frame buffer console and atomic kernel mode setting support.</para>
- <para>
- Every time the kernel
- debugger is entered it calls kgdboc_pre_exp_handler() which in turn
- calls con_debug_enter() in the virtual console layer. On resuming kernel
- execution, the kernel debugger calls kgdboc_post_exp_handler() which
- in turn calls con_debug_leave().</para>
- <para>Any video driver that wants to be compatible with the kernel
- debugger and the atomic kms callbacks must implement the
- mode_set_base_atomic, fb_debug_enter and fb_debug_leave operations.
- For the fb_debug_enter and fb_debug_leave the option exists to use
- the generic drm fb helper functions or implement something custom for
- the hardware. The following example shows the initialization of the
- .mode_set_base_atomic operation in
- drivers/gpu/drm/i915/intel_display.c:
- <informalexample>
- <programlisting>
-static const struct drm_crtc_helper_funcs intel_helper_funcs = {
-[...]
- .mode_set_base_atomic = intel_pipe_set_base_atomic,
-[...]
-};
- </programlisting>
- </informalexample>
- </para>
- <para>Here is an example of how the i915 driver initializes the fb_debug_enter and fb_debug_leave functions to use the generic drm helpers in
- drivers/gpu/drm/i915/intel_fb.c:
- <informalexample>
- <programlisting>
-static struct fb_ops intelfb_ops = {
-[...]
- .fb_debug_enter = drm_fb_helper_debug_enter,
- .fb_debug_leave = drm_fb_helper_debug_leave,
-[...]
-};
- </programlisting>
- </informalexample>
- </para>
- </sect2>
- </sect1>
- </chapter>
- <chapter id="credits">
- <title>Credits</title>
- <para>
- The following people have contributed to this document:
- <orderedlist>
- <listitem><para>Amit Kale<email>amitkale@linsyssoft.com</email></para></listitem>
- <listitem><para>Tom Rini<email>trini@kernel.crashing.org</email></para></listitem>
- </orderedlist>
- In March 2008 this document was completely rewritten by:
- <itemizedlist>
- <listitem><para>Jason Wessel<email>jason.wessel@windriver.com</email></para></listitem>
- </itemizedlist>
- In Jan 2010 this document was updated to include kdb.
- <itemizedlist>
- <listitem><para>Jason Wessel<email>jason.wessel@windriver.com</email></para></listitem>
- </itemizedlist>
- </para>
- </chapter>
-</book>
-
diff --git a/Documentation/DocBook/libata.tmpl b/Documentation/DocBook/libata.tmpl
deleted file mode 100644
index 0320910b866d..000000000000
--- a/Documentation/DocBook/libata.tmpl
+++ /dev/null
@@ -1,1625 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
-
-<book id="libataDevGuide">
- <bookinfo>
- <title>libATA Developer's Guide</title>
-
- <authorgroup>
- <author>
- <firstname>Jeff</firstname>
- <surname>Garzik</surname>
- </author>
- </authorgroup>
-
- <copyright>
- <year>2003-2006</year>
- <holder>Jeff Garzik</holder>
- </copyright>
-
- <legalnotice>
- <para>
- The contents of this file are subject to the Open
- Software License version 1.1 that can be found at
- <ulink url="http://fedoraproject.org/wiki/Licensing:OSL1.1">http://fedoraproject.org/wiki/Licensing:OSL1.1</ulink>
- and is included herein by reference.
- </para>
-
- <para>
- Alternatively, the contents of this file may be used under the terms
- of the GNU General Public License version 2 (the "GPL") as distributed
- in the kernel source COPYING file, in which case the provisions of
- the GPL are applicable instead of the above. If you wish to allow
- the use of your version of this file only under the terms of the
- GPL and not to allow others to use your version of this file under
- the OSL, indicate your decision by deleting the provisions above and
- replace them with the notice and other provisions required by the GPL.
- If you do not delete the provisions above, a recipient may use your
- version of this file under either the OSL or the GPL.
- </para>
-
- </legalnotice>
- </bookinfo>
-
-<toc></toc>
-
- <chapter id="libataIntroduction">
- <title>Introduction</title>
- <para>
- libATA is a library used inside the Linux kernel to support ATA host
- controllers and devices. libATA provides an ATA driver API, class
- transports for ATA and ATAPI devices, and SCSI&lt;-&gt;ATA translation
- for ATA devices according to the T10 SAT specification.
- </para>
- <para>
- This Guide documents the libATA driver API, library functions, library
- internals, and a couple sample ATA low-level drivers.
- </para>
- </chapter>
-
- <chapter id="libataDriverApi">
- <title>libata Driver API</title>
- <para>
- struct ata_port_operations is defined for every low-level libata
- hardware driver, and it controls how the low-level driver
- interfaces with the ATA and SCSI layers.
- </para>
- <para>
- FIS-based drivers will hook into the system with ->qc_prep() and
- ->qc_issue() high-level hooks. Hardware which behaves in a manner
- similar to PCI IDE hardware may utilize several generic helpers,
- defining at a bare minimum the bus I/O addresses of the ATA shadow
- register blocks.
- </para>
- <sect1>
- <title>struct ata_port_operations</title>
-
- <sect2><title>Disable ATA port</title>
- <programlisting>
-void (*port_disable) (struct ata_port *);
- </programlisting>
-
- <para>
- Called from ata_bus_probe() error path, as well as when
- unregistering from the SCSI module (rmmod, hot unplug).
- This function should do whatever needs to be done to take the
- port out of use. In most cases, ata_port_disable() can be used
- as this hook.
- </para>
- <para>
- Called from ata_bus_probe() on a failed probe.
- Called from ata_scsi_release().
- </para>
-
- </sect2>
-
- <sect2><title>Post-IDENTIFY device configuration</title>
- <programlisting>
-void (*dev_config) (struct ata_port *, struct ata_device *);
- </programlisting>
-
- <para>
- Called after IDENTIFY [PACKET] DEVICE is issued to each device
- found. Typically used to apply device-specific fixups prior to
- issue of SET FEATURES - XFER MODE, and prior to operation.
- </para>
- <para>
- This entry may be specified as NULL in ata_port_operations.
- </para>
-
- </sect2>
-
- <sect2><title>Set PIO/DMA mode</title>
- <programlisting>
-void (*set_piomode) (struct ata_port *, struct ata_device *);
-void (*set_dmamode) (struct ata_port *, struct ata_device *);
-void (*post_set_mode) (struct ata_port *);
-unsigned int (*mode_filter) (struct ata_port *, struct ata_device *, unsigned int);
- </programlisting>
-
- <para>
- Hooks called prior to the issue of SET FEATURES - XFER MODE
- command. The optional ->mode_filter() hook is called when libata
- has built a mask of the possible modes. This is passed to the
- ->mode_filter() function which should return a mask of valid modes
- after filtering those unsuitable due to hardware limits. It is not
- valid to use this interface to add modes.
- </para>
- <para>
- dev->pio_mode and dev->dma_mode are guaranteed to be valid when
- ->set_piomode() and when ->set_dmamode() is called. The timings for
- any other drive sharing the cable will also be valid at this point.
- That is the library records the decisions for the modes of each
- drive on a channel before it attempts to set any of them.
- </para>
- <para>
- ->post_set_mode() is
- called unconditionally, after the SET FEATURES - XFER MODE
- command completes successfully.
- </para>
-
- <para>
- ->set_piomode() is always called (if present), but
- ->set_dma_mode() is only called if DMA is possible.
- </para>
-
- </sect2>
-
- <sect2><title>Taskfile read/write</title>
- <programlisting>
-void (*sff_tf_load) (struct ata_port *ap, struct ata_taskfile *tf);
-void (*sff_tf_read) (struct ata_port *ap, struct ata_taskfile *tf);
- </programlisting>
-
- <para>
- ->tf_load() is called to load the given taskfile into hardware
- registers / DMA buffers. ->tf_read() is called to read the
- hardware registers / DMA buffers, to obtain the current set of
- taskfile register values.
- Most drivers for taskfile-based hardware (PIO or MMIO) use
- ata_sff_tf_load() and ata_sff_tf_read() for these hooks.
- </para>
-
- </sect2>
-
- <sect2><title>PIO data read/write</title>
- <programlisting>
-void (*sff_data_xfer) (struct ata_device *, unsigned char *, unsigned int, int);
- </programlisting>
-
- <para>
-All bmdma-style drivers must implement this hook. This is the low-level
-operation that actually copies the data bytes during a PIO data
-transfer.
-Typically the driver will choose one of ata_sff_data_xfer_noirq(),
-ata_sff_data_xfer(), or ata_sff_data_xfer32().
- </para>
-
- </sect2>
-
- <sect2><title>ATA command execute</title>
- <programlisting>
-void (*sff_exec_command)(struct ata_port *ap, struct ata_taskfile *tf);
- </programlisting>
-
- <para>
- causes an ATA command, previously loaded with
- ->tf_load(), to be initiated in hardware.
- Most drivers for taskfile-based hardware use ata_sff_exec_command()
- for this hook.
- </para>
-
- </sect2>
-
- <sect2><title>Per-cmd ATAPI DMA capabilities filter</title>
- <programlisting>
-int (*check_atapi_dma) (struct ata_queued_cmd *qc);
- </programlisting>
-
- <para>
-Allow low-level driver to filter ATA PACKET commands, returning a status
-indicating whether or not it is OK to use DMA for the supplied PACKET
-command.
- </para>
- <para>
- This hook may be specified as NULL, in which case libata will
- assume that atapi dma can be supported.
- </para>
-
- </sect2>
-
- <sect2><title>Read specific ATA shadow registers</title>
- <programlisting>
-u8 (*sff_check_status)(struct ata_port *ap);
-u8 (*sff_check_altstatus)(struct ata_port *ap);
- </programlisting>
-
- <para>
- Reads the Status/AltStatus ATA shadow register from
- hardware. On some hardware, reading the Status register has
- the side effect of clearing the interrupt condition.
- Most drivers for taskfile-based hardware use
- ata_sff_check_status() for this hook.
- </para>
-
- </sect2>
-
- <sect2><title>Write specific ATA shadow register</title>
- <programlisting>
-void (*sff_set_devctl)(struct ata_port *ap, u8 ctl);
- </programlisting>
-
- <para>
- Write the device control ATA shadow register to the hardware.
- Most drivers don't need to define this.
- </para>
-
- </sect2>
-
- <sect2><title>Select ATA device on bus</title>
- <programlisting>
-void (*sff_dev_select)(struct ata_port *ap, unsigned int device);
- </programlisting>
-
- <para>
- Issues the low-level hardware command(s) that causes one of N
- hardware devices to be considered 'selected' (active and
- available for use) on the ATA bus. This generally has no
- meaning on FIS-based devices.
- </para>
- <para>
- Most drivers for taskfile-based hardware use
- ata_sff_dev_select() for this hook.
- </para>
-
- </sect2>
-
- <sect2><title>Private tuning method</title>
- <programlisting>
-void (*set_mode) (struct ata_port *ap);
- </programlisting>
-
- <para>
- By default libata performs drive and controller tuning in
- accordance with the ATA timing rules and also applies blacklists
- and cable limits. Some controllers need special handling and have
- custom tuning rules, typically raid controllers that use ATA
- commands but do not actually do drive timing.
- </para>
-
- <warning>
- <para>
- This hook should not be used to replace the standard controller
- tuning logic when a controller has quirks. Replacing the default
- tuning logic in that case would bypass handling for drive and
- bridge quirks that may be important to data reliability. If a
- controller needs to filter the mode selection it should use the
- mode_filter hook instead.
- </para>
- </warning>
-
- </sect2>
-
- <sect2><title>Control PCI IDE BMDMA engine</title>
- <programlisting>
-void (*bmdma_setup) (struct ata_queued_cmd *qc);
-void (*bmdma_start) (struct ata_queued_cmd *qc);
-void (*bmdma_stop) (struct ata_port *ap);
-u8 (*bmdma_status) (struct ata_port *ap);
- </programlisting>
-
- <para>
-When setting up an IDE BMDMA transaction, these hooks arm
-(->bmdma_setup), fire (->bmdma_start), and halt (->bmdma_stop)
-the hardware's DMA engine. ->bmdma_status is used to read the standard
-PCI IDE DMA Status register.
- </para>
-
- <para>
-These hooks are typically either no-ops, or simply not implemented, in
-FIS-based drivers.
- </para>
- <para>
-Most legacy IDE drivers use ata_bmdma_setup() for the bmdma_setup()
-hook. ata_bmdma_setup() will write the pointer to the PRD table to
-the IDE PRD Table Address register, enable DMA in the DMA Command
-register, and call exec_command() to begin the transfer.
- </para>
- <para>
-Most legacy IDE drivers use ata_bmdma_start() for the bmdma_start()
-hook. ata_bmdma_start() will write the ATA_DMA_START flag to the DMA
-Command register.
- </para>
- <para>
-Many legacy IDE drivers use ata_bmdma_stop() for the bmdma_stop()
-hook. ata_bmdma_stop() clears the ATA_DMA_START flag in the DMA
-command register.
- </para>
- <para>
-Many legacy IDE drivers use ata_bmdma_status() as the bmdma_status() hook.
- </para>
-
- </sect2>
-
- <sect2><title>High-level taskfile hooks</title>
- <programlisting>
-void (*qc_prep) (struct ata_queued_cmd *qc);
-int (*qc_issue) (struct ata_queued_cmd *qc);
- </programlisting>
-
- <para>
- Higher-level hooks, these two hooks can potentially supercede
- several of the above taskfile/DMA engine hooks. ->qc_prep is
- called after the buffers have been DMA-mapped, and is typically
- used to populate the hardware's DMA scatter-gather table.
- Most drivers use the standard ata_qc_prep() helper function, but
- more advanced drivers roll their own.
- </para>
- <para>
- ->qc_issue is used to make a command active, once the hardware
- and S/G tables have been prepared. IDE BMDMA drivers use the
- helper function ata_qc_issue_prot() for taskfile protocol-based
- dispatch. More advanced drivers implement their own ->qc_issue.
- </para>
- <para>
- ata_qc_issue_prot() calls ->tf_load(), ->bmdma_setup(), and
- ->bmdma_start() as necessary to initiate a transfer.
- </para>
-
- </sect2>
-
- <sect2><title>Exception and probe handling (EH)</title>
- <programlisting>
-void (*eng_timeout) (struct ata_port *ap);
-void (*phy_reset) (struct ata_port *ap);
- </programlisting>
-
- <para>
-Deprecated. Use ->error_handler() instead.
- </para>
-
- <programlisting>
-void (*freeze) (struct ata_port *ap);
-void (*thaw) (struct ata_port *ap);
- </programlisting>
-
- <para>
-ata_port_freeze() is called when HSM violations or some other
-condition disrupts normal operation of the port. A frozen port
-is not allowed to perform any operation until the port is
-thawed, which usually follows a successful reset.
- </para>
-
- <para>
-The optional ->freeze() callback can be used for freezing the port
-hardware-wise (e.g. mask interrupt and stop DMA engine). If a
-port cannot be frozen hardware-wise, the interrupt handler
-must ack and clear interrupts unconditionally while the port
-is frozen.
- </para>
- <para>
-The optional ->thaw() callback is called to perform the opposite of ->freeze():
-prepare the port for normal operation once again. Unmask interrupts,
-start DMA engine, etc.
- </para>
-
- <programlisting>
-void (*error_handler) (struct ata_port *ap);
- </programlisting>
-
- <para>
-->error_handler() is a driver's hook into probe, hotplug, and recovery
-and other exceptional conditions. The primary responsibility of an
-implementation is to call ata_do_eh() or ata_bmdma_drive_eh() with a set
-of EH hooks as arguments:
- </para>
-
- <para>
-'prereset' hook (may be NULL) is called during an EH reset, before any other actions
-are taken.
- </para>
-
- <para>
-'postreset' hook (may be NULL) is called after the EH reset is performed. Based on
-existing conditions, severity of the problem, and hardware capabilities,
- </para>
-
- <para>
-Either 'softreset' (may be NULL) or 'hardreset' (may be NULL) will be
-called to perform the low-level EH reset.
- </para>
-
- <programlisting>
-void (*post_internal_cmd) (struct ata_queued_cmd *qc);
- </programlisting>
-
- <para>
-Perform any hardware-specific actions necessary to finish processing
-after executing a probe-time or EH-time command via ata_exec_internal().
- </para>
-
- </sect2>
-
- <sect2><title>Hardware interrupt handling</title>
- <programlisting>
-irqreturn_t (*irq_handler)(int, void *, struct pt_regs *);
-void (*irq_clear) (struct ata_port *);
- </programlisting>
-
- <para>
- ->irq_handler is the interrupt handling routine registered with
- the system, by libata. ->irq_clear is called during probe just
- before the interrupt handler is registered, to be sure hardware
- is quiet.
- </para>
- <para>
- The second argument, dev_instance, should be cast to a pointer
- to struct ata_host_set.
- </para>
- <para>
- Most legacy IDE drivers use ata_sff_interrupt() for the
- irq_handler hook, which scans all ports in the host_set,
- determines which queued command was active (if any), and calls
- ata_sff_host_intr(ap,qc).
- </para>
- <para>
- Most legacy IDE drivers use ata_sff_irq_clear() for the
- irq_clear() hook, which simply clears the interrupt and error
- flags in the DMA status register.
- </para>
-
- </sect2>
-
- <sect2><title>SATA phy read/write</title>
- <programlisting>
-int (*scr_read) (struct ata_port *ap, unsigned int sc_reg,
- u32 *val);
-int (*scr_write) (struct ata_port *ap, unsigned int sc_reg,
- u32 val);
- </programlisting>
-
- <para>
- Read and write standard SATA phy registers. Currently only used
- if ->phy_reset hook called the sata_phy_reset() helper function.
- sc_reg is one of SCR_STATUS, SCR_CONTROL, SCR_ERROR, or SCR_ACTIVE.
- </para>
-
- </sect2>
-
- <sect2><title>Init and shutdown</title>
- <programlisting>
-int (*port_start) (struct ata_port *ap);
-void (*port_stop) (struct ata_port *ap);
-void (*host_stop) (struct ata_host_set *host_set);
- </programlisting>
-
- <para>
- ->port_start() is called just after the data structures for each
- port are initialized. Typically this is used to alloc per-port
- DMA buffers / tables / rings, enable DMA engines, and similar
- tasks. Some drivers also use this entry point as a chance to
- allocate driver-private memory for ap->private_data.
- </para>
- <para>
- Many drivers use ata_port_start() as this hook or call
- it from their own port_start() hooks. ata_port_start()
- allocates space for a legacy IDE PRD table and returns.
- </para>
- <para>
- ->port_stop() is called after ->host_stop(). Its sole function
- is to release DMA/memory resources, now that they are no longer
- actively being used. Many drivers also free driver-private
- data from port at this time.
- </para>
- <para>
- ->host_stop() is called after all ->port_stop() calls
-have completed. The hook must finalize hardware shutdown, release DMA
-and other resources, etc.
- This hook may be specified as NULL, in which case it is not called.
- </para>
-
- </sect2>
-
- </sect1>
- </chapter>
-
- <chapter id="libataEH">
- <title>Error handling</title>
-
- <para>
- This chapter describes how errors are handled under libata.
- Readers are advised to read SCSI EH
- (Documentation/scsi/scsi_eh.txt) and ATA exceptions doc first.
- </para>
-
- <sect1><title>Origins of commands</title>
- <para>
- In libata, a command is represented with struct ata_queued_cmd
- or qc. qc's are preallocated during port initialization and
- repetitively used for command executions. Currently only one
- qc is allocated per port but yet-to-be-merged NCQ branch
- allocates one for each tag and maps each qc to NCQ tag 1-to-1.
- </para>
- <para>
- libata commands can originate from two sources - libata itself
- and SCSI midlayer. libata internal commands are used for
- initialization and error handling. All normal blk requests
- and commands for SCSI emulation are passed as SCSI commands
- through queuecommand callback of SCSI host template.
- </para>
- </sect1>
-
- <sect1><title>How commands are issued</title>
-
- <variablelist>
-
- <varlistentry><term>Internal commands</term>
- <listitem>
- <para>
- First, qc is allocated and initialized using
- ata_qc_new_init(). Although ata_qc_new_init() doesn't
- implement any wait or retry mechanism when qc is not
- available, internal commands are currently issued only during
- initialization and error recovery, so no other command is
- active and allocation is guaranteed to succeed.
- </para>
- <para>
- Once allocated qc's taskfile is initialized for the command to
- be executed. qc currently has two mechanisms to notify
- completion. One is via qc->complete_fn() callback and the
- other is completion qc->waiting. qc->complete_fn() callback
- is the asynchronous path used by normal SCSI translated
- commands and qc->waiting is the synchronous (issuer sleeps in
- process context) path used by internal commands.
- </para>
- <para>
- Once initialization is complete, host_set lock is acquired
- and the qc is issued.
- </para>
- </listitem>
- </varlistentry>
-
- <varlistentry><term>SCSI commands</term>
- <listitem>
- <para>
- All libata drivers use ata_scsi_queuecmd() as
- hostt->queuecommand callback. scmds can either be simulated
- or translated. No qc is involved in processing a simulated
- scmd. The result is computed right away and the scmd is
- completed.
- </para>
- <para>
- For a translated scmd, ata_qc_new_init() is invoked to
- allocate a qc and the scmd is translated into the qc. SCSI
- midlayer's completion notification function pointer is stored
- into qc->scsidone.
- </para>
- <para>
- qc->complete_fn() callback is used for completion
- notification. ATA commands use ata_scsi_qc_complete() while
- ATAPI commands use atapi_qc_complete(). Both functions end up
- calling qc->scsidone to notify upper layer when the qc is
- finished. After translation is completed, the qc is issued
- with ata_qc_issue().
- </para>
- <para>
- Note that SCSI midlayer invokes hostt->queuecommand while
- holding host_set lock, so all above occur while holding
- host_set lock.
- </para>
- </listitem>
- </varlistentry>
-
- </variablelist>
- </sect1>
-
- <sect1><title>How commands are processed</title>
- <para>
- Depending on which protocol and which controller are used,
- commands are processed differently. For the purpose of
- discussion, a controller which uses taskfile interface and all
- standard callbacks is assumed.
- </para>
- <para>
- Currently 6 ATA command protocols are used. They can be
- sorted into the following four categories according to how
- they are processed.
- </para>
-
- <variablelist>
- <varlistentry><term>ATA NO DATA or DMA</term>
- <listitem>
- <para>
- ATA_PROT_NODATA and ATA_PROT_DMA fall into this category.
- These types of commands don't require any software
- intervention once issued. Device will raise interrupt on
- completion.
- </para>
- </listitem>
- </varlistentry>
-
- <varlistentry><term>ATA PIO</term>
- <listitem>
- <para>
- ATA_PROT_PIO is in this category. libata currently
- implements PIO with polling. ATA_NIEN bit is set to turn
- off interrupt and pio_task on ata_wq performs polling and
- IO.
- </para>
- </listitem>
- </varlistentry>
-
- <varlistentry><term>ATAPI NODATA or DMA</term>
- <listitem>
- <para>
- ATA_PROT_ATAPI_NODATA and ATA_PROT_ATAPI_DMA are in this
- category. packet_task is used to poll BSY bit after
- issuing PACKET command. Once BSY is turned off by the
- device, packet_task transfers CDB and hands off processing
- to interrupt handler.
- </para>
- </listitem>
- </varlistentry>
-
- <varlistentry><term>ATAPI PIO</term>
- <listitem>
- <para>
- ATA_PROT_ATAPI is in this category. ATA_NIEN bit is set
- and, as in ATAPI NODATA or DMA, packet_task submits cdb.
- However, after submitting cdb, further processing (data
- transfer) is handed off to pio_task.
- </para>
- </listitem>
- </varlistentry>
- </variablelist>
- </sect1>
-
- <sect1><title>How commands are completed</title>
- <para>
- Once issued, all qc's are either completed with
- ata_qc_complete() or time out. For commands which are handled
- by interrupts, ata_host_intr() invokes ata_qc_complete(), and,
- for PIO tasks, pio_task invokes ata_qc_complete(). In error
- cases, packet_task may also complete commands.
- </para>
- <para>
- ata_qc_complete() does the following.
- </para>
-
- <orderedlist>
-
- <listitem>
- <para>
- DMA memory is unmapped.
- </para>
- </listitem>
-
- <listitem>
- <para>
- ATA_QCFLAG_ACTIVE is cleared from qc->flags.
- </para>
- </listitem>
-
- <listitem>
- <para>
- qc->complete_fn() callback is invoked. If the return value of
- the callback is not zero. Completion is short circuited and
- ata_qc_complete() returns.
- </para>
- </listitem>
-
- <listitem>
- <para>
- __ata_qc_complete() is called, which does
- <orderedlist>
-
- <listitem>
- <para>
- qc->flags is cleared to zero.
- </para>
- </listitem>
-
- <listitem>
- <para>
- ap->active_tag and qc->tag are poisoned.
- </para>
- </listitem>
-
- <listitem>
- <para>
- qc->waiting is cleared &amp; completed (in that order).
- </para>
- </listitem>
-
- <listitem>
- <para>
- qc is deallocated by clearing appropriate bit in ap->qactive.
- </para>
- </listitem>
-
- </orderedlist>
- </para>
- </listitem>
-
- </orderedlist>
-
- <para>
- So, it basically notifies upper layer and deallocates qc. One
- exception is short-circuit path in #3 which is used by
- atapi_qc_complete().
- </para>
- <para>
- For all non-ATAPI commands, whether it fails or not, almost
- the same code path is taken and very little error handling
- takes place. A qc is completed with success status if it
- succeeded, with failed status otherwise.
- </para>
- <para>
- However, failed ATAPI commands require more handling as
- REQUEST SENSE is needed to acquire sense data. If an ATAPI
- command fails, ata_qc_complete() is invoked with error status,
- which in turn invokes atapi_qc_complete() via
- qc->complete_fn() callback.
- </para>
- <para>
- This makes atapi_qc_complete() set scmd->result to
- SAM_STAT_CHECK_CONDITION, complete the scmd and return 1. As
- the sense data is empty but scmd->result is CHECK CONDITION,
- SCSI midlayer will invoke EH for the scmd, and returning 1
- makes ata_qc_complete() to return without deallocating the qc.
- This leads us to ata_scsi_error() with partially completed qc.
- </para>
-
- </sect1>
-
- <sect1><title>ata_scsi_error()</title>
- <para>
- ata_scsi_error() is the current transportt->eh_strategy_handler()
- for libata. As discussed above, this will be entered in two
- cases - timeout and ATAPI error completion. This function
- calls low level libata driver's eng_timeout() callback, the
- standard callback for which is ata_eng_timeout(). It checks
- if a qc is active and calls ata_qc_timeout() on the qc if so.
- Actual error handling occurs in ata_qc_timeout().
- </para>
- <para>
- If EH is invoked for timeout, ata_qc_timeout() stops BMDMA and
- completes the qc. Note that as we're currently in EH, we
- cannot call scsi_done. As described in SCSI EH doc, a
- recovered scmd should be either retried with
- scsi_queue_insert() or finished with scsi_finish_command().
- Here, we override qc->scsidone with scsi_finish_command() and
- calls ata_qc_complete().
- </para>
- <para>
- If EH is invoked due to a failed ATAPI qc, the qc here is
- completed but not deallocated. The purpose of this
- half-completion is to use the qc as place holder to make EH
- code reach this place. This is a bit hackish, but it works.
- </para>
- <para>
- Once control reaches here, the qc is deallocated by invoking
- __ata_qc_complete() explicitly. Then, internal qc for REQUEST
- SENSE is issued. Once sense data is acquired, scmd is
- finished by directly invoking scsi_finish_command() on the
- scmd. Note that as we already have completed and deallocated
- the qc which was associated with the scmd, we don't need
- to/cannot call ata_qc_complete() again.
- </para>
-
- </sect1>
-
- <sect1><title>Problems with the current EH</title>
-
- <itemizedlist>
-
- <listitem>
- <para>
- Error representation is too crude. Currently any and all
- error conditions are represented with ATA STATUS and ERROR
- registers. Errors which aren't ATA device errors are treated
- as ATA device errors by setting ATA_ERR bit. Better error
- descriptor which can properly represent ATA and other
- errors/exceptions is needed.
- </para>
- </listitem>
-
- <listitem>
- <para>
- When handling timeouts, no action is taken to make device
- forget about the timed out command and ready for new commands.
- </para>
- </listitem>
-
- <listitem>
- <para>
- EH handling via ata_scsi_error() is not properly protected
- from usual command processing. On EH entrance, the device is
- not in quiescent state. Timed out commands may succeed or
- fail any time. pio_task and atapi_task may still be running.
- </para>
- </listitem>
-
- <listitem>
- <para>
- Too weak error recovery. Devices / controllers causing HSM
- mismatch errors and other errors quite often require reset to
- return to known state. Also, advanced error handling is
- necessary to support features like NCQ and hotplug.
- </para>
- </listitem>
-
- <listitem>
- <para>
- ATA errors are directly handled in the interrupt handler and
- PIO errors in pio_task. This is problematic for advanced
- error handling for the following reasons.
- </para>
- <para>
- First, advanced error handling often requires context and
- internal qc execution.
- </para>
- <para>
- Second, even a simple failure (say, CRC error) needs
- information gathering and could trigger complex error handling
- (say, resetting &amp; reconfiguring). Having multiple code
- paths to gather information, enter EH and trigger actions
- makes life painful.
- </para>
- <para>
- Third, scattered EH code makes implementing low level drivers
- difficult. Low level drivers override libata callbacks. If
- EH is scattered over several places, each affected callbacks
- should perform its part of error handling. This can be error
- prone and painful.
- </para>
- </listitem>
-
- </itemizedlist>
- </sect1>
- </chapter>
-
- <chapter id="libataExt">
- <title>libata Library</title>
-!Edrivers/ata/libata-core.c
- </chapter>
-
- <chapter id="libataInt">
- <title>libata Core Internals</title>
-!Idrivers/ata/libata-core.c
- </chapter>
-
- <chapter id="libataScsiInt">
- <title>libata SCSI translation/emulation</title>
-!Edrivers/ata/libata-scsi.c
-!Idrivers/ata/libata-scsi.c
- </chapter>
-
- <chapter id="ataExceptions">
- <title>ATA errors and exceptions</title>
-
- <para>
- This chapter tries to identify what error/exception conditions exist
- for ATA/ATAPI devices and describe how they should be handled in
- implementation-neutral way.
- </para>
-
- <para>
- The term 'error' is used to describe conditions where either an
- explicit error condition is reported from device or a command has
- timed out.
- </para>
-
- <para>
- The term 'exception' is either used to describe exceptional
- conditions which are not errors (say, power or hotplug events), or
- to describe both errors and non-error exceptional conditions. Where
- explicit distinction between error and exception is necessary, the
- term 'non-error exception' is used.
- </para>
-
- <sect1 id="excat">
- <title>Exception categories</title>
- <para>
- Exceptions are described primarily with respect to legacy
- taskfile + bus master IDE interface. If a controller provides
- other better mechanism for error reporting, mapping those into
- categories described below shouldn't be difficult.
- </para>
-
- <para>
- In the following sections, two recovery actions - reset and
- reconfiguring transport - are mentioned. These are described
- further in <xref linkend="exrec"/>.
- </para>
-
- <sect2 id="excatHSMviolation">
- <title>HSM violation</title>
- <para>
- This error is indicated when STATUS value doesn't match HSM
- requirement during issuing or execution any ATA/ATAPI command.
- </para>
-
- <itemizedlist>
- <title>Examples</title>
-
- <listitem>
- <para>
- ATA_STATUS doesn't contain !BSY &amp;&amp; DRDY &amp;&amp; !DRQ while trying
- to issue a command.
- </para>
- </listitem>
-
- <listitem>
- <para>
- !BSY &amp;&amp; !DRQ during PIO data transfer.
- </para>
- </listitem>
-
- <listitem>
- <para>
- DRQ on command completion.
- </para>
- </listitem>
-
- <listitem>
- <para>
- !BSY &amp;&amp; ERR after CDB transfer starts but before the
- last byte of CDB is transferred. ATA/ATAPI standard states
- that &quot;The device shall not terminate the PACKET command
- with an error before the last byte of the command packet has
- been written&quot; in the error outputs description of PACKET
- command and the state diagram doesn't include such
- transitions.
- </para>
- </listitem>
-
- </itemizedlist>
-
- <para>
- In these cases, HSM is violated and not much information
- regarding the error can be acquired from STATUS or ERROR
- register. IOW, this error can be anything - driver bug,
- faulty device, controller and/or cable.
- </para>
-
- <para>
- As HSM is violated, reset is necessary to restore known state.
- Reconfiguring transport for lower speed might be helpful too
- as transmission errors sometimes cause this kind of errors.
- </para>
- </sect2>
-
- <sect2 id="excatDevErr">
- <title>ATA/ATAPI device error (non-NCQ / non-CHECK CONDITION)</title>
-
- <para>
- These are errors detected and reported by ATA/ATAPI devices
- indicating device problems. For this type of errors, STATUS
- and ERROR register values are valid and describe error
- condition. Note that some of ATA bus errors are detected by
- ATA/ATAPI devices and reported using the same mechanism as
- device errors. Those cases are described later in this
- section.
- </para>
-
- <para>
- For ATA commands, this type of errors are indicated by !BSY
- &amp;&amp; ERR during command execution and on completion.
- </para>
-
- <para>For ATAPI commands,</para>
-
- <itemizedlist>
-
- <listitem>
- <para>
- !BSY &amp;&amp; ERR &amp;&amp; ABRT right after issuing PACKET
- indicates that PACKET command is not supported and falls in
- this category.
- </para>
- </listitem>
-
- <listitem>
- <para>
- !BSY &amp;&amp; ERR(==CHK) &amp;&amp; !ABRT after the last
- byte of CDB is transferred indicates CHECK CONDITION and
- doesn't fall in this category.
- </para>
- </listitem>
-
- <listitem>
- <para>
- !BSY &amp;&amp; ERR(==CHK) &amp;&amp; ABRT after the last byte
- of CDB is transferred *probably* indicates CHECK CONDITION and
- doesn't fall in this category.
- </para>
- </listitem>
-
- </itemizedlist>
-
- <para>
- Of errors detected as above, the following are not ATA/ATAPI
- device errors but ATA bus errors and should be handled
- according to <xref linkend="excatATAbusErr"/>.
- </para>
-
- <variablelist>
-
- <varlistentry>
- <term>CRC error during data transfer</term>
- <listitem>
- <para>
- This is indicated by ICRC bit in the ERROR register and
- means that corruption occurred during data transfer. Up to
- ATA/ATAPI-7, the standard specifies that this bit is only
- applicable to UDMA transfers but ATA/ATAPI-8 draft revision
- 1f says that the bit may be applicable to multiword DMA and
- PIO.
- </para>
- </listitem>
- </varlistentry>
-
- <varlistentry>
- <term>ABRT error during data transfer or on completion</term>
- <listitem>
- <para>
- Up to ATA/ATAPI-7, the standard specifies that ABRT could be
- set on ICRC errors and on cases where a device is not able
- to complete a command. Combined with the fact that MWDMA
- and PIO transfer errors aren't allowed to use ICRC bit up to
- ATA/ATAPI-7, it seems to imply that ABRT bit alone could
- indicate transfer errors.
- </para>
- <para>
- However, ATA/ATAPI-8 draft revision 1f removes the part
- that ICRC errors can turn on ABRT. So, this is kind of
- gray area. Some heuristics are needed here.
- </para>
- </listitem>
- </varlistentry>
-
- </variablelist>
-
- <para>
- ATA/ATAPI device errors can be further categorized as follows.
- </para>
-
- <variablelist>
-
- <varlistentry>
- <term>Media errors</term>
- <listitem>
- <para>
- This is indicated by UNC bit in the ERROR register. ATA
- devices reports UNC error only after certain number of
- retries cannot recover the data, so there's nothing much
- else to do other than notifying upper layer.
- </para>
- <para>
- READ and WRITE commands report CHS or LBA of the first
- failed sector but ATA/ATAPI standard specifies that the
- amount of transferred data on error completion is
- indeterminate, so we cannot assume that sectors preceding
- the failed sector have been transferred and thus cannot
- complete those sectors successfully as SCSI does.
- </para>
- </listitem>
- </varlistentry>
-
- <varlistentry>
- <term>Media changed / media change requested error</term>
- <listitem>
- <para>
- &lt;&lt;TODO: fill here&gt;&gt;
- </para>
- </listitem>
- </varlistentry>
-
- <varlistentry><term>Address error</term>
- <listitem>
- <para>
- This is indicated by IDNF bit in the ERROR register.
- Report to upper layer.
- </para>
- </listitem>
- </varlistentry>
-
- <varlistentry><term>Other errors</term>
- <listitem>
- <para>
- This can be invalid command or parameter indicated by ABRT
- ERROR bit or some other error condition. Note that ABRT
- bit can indicate a lot of things including ICRC and Address
- errors. Heuristics needed.
- </para>
- </listitem>
- </varlistentry>
-
- </variablelist>
-
- <para>
- Depending on commands, not all STATUS/ERROR bits are
- applicable. These non-applicable bits are marked with
- &quot;na&quot; in the output descriptions but up to ATA/ATAPI-7
- no definition of &quot;na&quot; can be found. However,
- ATA/ATAPI-8 draft revision 1f describes &quot;N/A&quot; as
- follows.
- </para>
-
- <blockquote>
- <variablelist>
- <varlistentry><term>3.2.3.3a N/A</term>
- <listitem>
- <para>
- A keyword the indicates a field has no defined value in
- this standard and should not be checked by the host or
- device. N/A fields should be cleared to zero.
- </para>
- </listitem>
- </varlistentry>
- </variablelist>
- </blockquote>
-
- <para>
- So, it seems reasonable to assume that &quot;na&quot; bits are
- cleared to zero by devices and thus need no explicit masking.
- </para>
-
- </sect2>
-
- <sect2 id="excatATAPIcc">
- <title>ATAPI device CHECK CONDITION</title>
-
- <para>
- ATAPI device CHECK CONDITION error is indicated by set CHK bit
- (ERR bit) in the STATUS register after the last byte of CDB is
- transferred for a PACKET command. For this kind of errors,
- sense data should be acquired to gather information regarding
- the errors. REQUEST SENSE packet command should be used to
- acquire sense data.
- </para>
-
- <para>
- Once sense data is acquired, this type of errors can be
- handled similarly to other SCSI errors. Note that sense data
- may indicate ATA bus error (e.g. Sense Key 04h HARDWARE ERROR
- &amp;&amp; ASC/ASCQ 47h/00h SCSI PARITY ERROR). In such
- cases, the error should be considered as an ATA bus error and
- handled according to <xref linkend="excatATAbusErr"/>.
- </para>
-
- </sect2>
-
- <sect2 id="excatNCQerr">
- <title>ATA device error (NCQ)</title>
-
- <para>
- NCQ command error is indicated by cleared BSY and set ERR bit
- during NCQ command phase (one or more NCQ commands
- outstanding). Although STATUS and ERROR registers will
- contain valid values describing the error, READ LOG EXT is
- required to clear the error condition, determine which command
- has failed and acquire more information.
- </para>
-
- <para>
- READ LOG EXT Log Page 10h reports which tag has failed and
- taskfile register values describing the error. With this
- information the failed command can be handled as a normal ATA
- command error as in <xref linkend="excatDevErr"/> and all
- other in-flight commands must be retried. Note that this
- retry should not be counted - it's likely that commands
- retried this way would have completed normally if it were not
- for the failed command.
- </para>
-
- <para>
- Note that ATA bus errors can be reported as ATA device NCQ
- errors. This should be handled as described in <xref
- linkend="excatATAbusErr"/>.
- </para>
-
- <para>
- If READ LOG EXT Log Page 10h fails or reports NQ, we're
- thoroughly screwed. This condition should be treated
- according to <xref linkend="excatHSMviolation"/>.
- </para>
-
- </sect2>
-
- <sect2 id="excatATAbusErr">
- <title>ATA bus error</title>
-
- <para>
- ATA bus error means that data corruption occurred during
- transmission over ATA bus (SATA or PATA). This type of errors
- can be indicated by
- </para>
-
- <itemizedlist>
-
- <listitem>
- <para>
- ICRC or ABRT error as described in <xref linkend="excatDevErr"/>.
- </para>
- </listitem>
-
- <listitem>
- <para>
- Controller-specific error completion with error information
- indicating transmission error.
- </para>
- </listitem>
-
- <listitem>
- <para>
- On some controllers, command timeout. In this case, there may
- be a mechanism to determine that the timeout is due to
- transmission error.
- </para>
- </listitem>
-
- <listitem>
- <para>
- Unknown/random errors, timeouts and all sorts of weirdities.
- </para>
- </listitem>
-
- </itemizedlist>
-
- <para>
- As described above, transmission errors can cause wide variety
- of symptoms ranging from device ICRC error to random device
- lockup, and, for many cases, there is no way to tell if an
- error condition is due to transmission error or not;
- therefore, it's necessary to employ some kind of heuristic
- when dealing with errors and timeouts. For example,
- encountering repetitive ABRT errors for known supported
- command is likely to indicate ATA bus error.
- </para>
-
- <para>
- Once it's determined that ATA bus errors have possibly
- occurred, lowering ATA bus transmission speed is one of
- actions which may alleviate the problem. See <xref
- linkend="exrecReconf"/> for more information.
- </para>
-
- </sect2>
-
- <sect2 id="excatPCIbusErr">
- <title>PCI bus error</title>
-
- <para>
- Data corruption or other failures during transmission over PCI
- (or other system bus). For standard BMDMA, this is indicated
- by Error bit in the BMDMA Status register. This type of
- errors must be logged as it indicates something is very wrong
- with the system. Resetting host controller is recommended.
- </para>
-
- </sect2>
-
- <sect2 id="excatLateCompletion">
- <title>Late completion</title>
-
- <para>
- This occurs when timeout occurs and the timeout handler finds
- out that the timed out command has completed successfully or
- with error. This is usually caused by lost interrupts. This
- type of errors must be logged. Resetting host controller is
- recommended.
- </para>
-
- </sect2>
-
- <sect2 id="excatUnknown">
- <title>Unknown error (timeout)</title>
-
- <para>
- This is when timeout occurs and the command is still
- processing or the host and device are in unknown state. When
- this occurs, HSM could be in any valid or invalid state. To
- bring the device to known state and make it forget about the
- timed out command, resetting is necessary. The timed out
- command may be retried.
- </para>
-
- <para>
- Timeouts can also be caused by transmission errors. Refer to
- <xref linkend="excatATAbusErr"/> for more details.
- </para>
-
- </sect2>
-
- <sect2 id="excatHoplugPM">
- <title>Hotplug and power management exceptions</title>
-
- <para>
- &lt;&lt;TODO: fill here&gt;&gt;
- </para>
-
- </sect2>
-
- </sect1>
-
- <sect1 id="exrec">
- <title>EH recovery actions</title>
-
- <para>
- This section discusses several important recovery actions.
- </para>
-
- <sect2 id="exrecClr">
- <title>Clearing error condition</title>
-
- <para>
- Many controllers require its error registers to be cleared by
- error handler. Different controllers may have different
- requirements.
- </para>
-
- <para>
- For SATA, it's strongly recommended to clear at least SError
- register during error handling.
- </para>
- </sect2>
-
- <sect2 id="exrecRst">
- <title>Reset</title>
-
- <para>
- During EH, resetting is necessary in the following cases.
- </para>
-
- <itemizedlist>
-
- <listitem>
- <para>
- HSM is in unknown or invalid state
- </para>
- </listitem>
-
- <listitem>
- <para>
- HBA is in unknown or invalid state
- </para>
- </listitem>
-
- <listitem>
- <para>
- EH needs to make HBA/device forget about in-flight commands
- </para>
- </listitem>
-
- <listitem>
- <para>
- HBA/device behaves weirdly
- </para>
- </listitem>
-
- </itemizedlist>
-
- <para>
- Resetting during EH might be a good idea regardless of error
- condition to improve EH robustness. Whether to reset both or
- either one of HBA and device depends on situation but the
- following scheme is recommended.
- </para>
-
- <itemizedlist>
-
- <listitem>
- <para>
- When it's known that HBA is in ready state but ATA/ATAPI
- device is in unknown state, reset only device.
- </para>
- </listitem>
-
- <listitem>
- <para>
- If HBA is in unknown state, reset both HBA and device.
- </para>
- </listitem>
-
- </itemizedlist>
-
- <para>
- HBA resetting is implementation specific. For a controller
- complying to taskfile/BMDMA PCI IDE, stopping active DMA
- transaction may be sufficient iff BMDMA state is the only HBA
- context. But even mostly taskfile/BMDMA PCI IDE complying
- controllers may have implementation specific requirements and
- mechanism to reset themselves. This must be addressed by
- specific drivers.
- </para>
-
- <para>
- OTOH, ATA/ATAPI standard describes in detail ways to reset
- ATA/ATAPI devices.
- </para>
-
- <variablelist>
-
- <varlistentry><term>PATA hardware reset</term>
- <listitem>
- <para>
- This is hardware initiated device reset signalled with
- asserted PATA RESET- signal. There is no standard way to
- initiate hardware reset from software although some
- hardware provides registers that allow driver to directly
- tweak the RESET- signal.
- </para>
- </listitem>
- </varlistentry>
-
- <varlistentry><term>Software reset</term>
- <listitem>
- <para>
- This is achieved by turning CONTROL SRST bit on for at
- least 5us. Both PATA and SATA support it but, in case of
- SATA, this may require controller-specific support as the
- second Register FIS to clear SRST should be transmitted
- while BSY bit is still set. Note that on PATA, this resets
- both master and slave devices on a channel.
- </para>
- </listitem>
- </varlistentry>
-
- <varlistentry><term>EXECUTE DEVICE DIAGNOSTIC command</term>
- <listitem>
- <para>
- Although ATA/ATAPI standard doesn't describe exactly, EDD
- implies some level of resetting, possibly similar level
- with software reset. Host-side EDD protocol can be handled
- with normal command processing and most SATA controllers
- should be able to handle EDD's just like other commands.
- As in software reset, EDD affects both devices on a PATA
- bus.
- </para>
- <para>
- Although EDD does reset devices, this doesn't suit error
- handling as EDD cannot be issued while BSY is set and it's
- unclear how it will act when device is in unknown/weird
- state.
- </para>
- </listitem>
- </varlistentry>
-
- <varlistentry><term>ATAPI DEVICE RESET command</term>
- <listitem>
- <para>
- This is very similar to software reset except that reset
- can be restricted to the selected device without affecting
- the other device sharing the cable.
- </para>
- </listitem>
- </varlistentry>
-
- <varlistentry><term>SATA phy reset</term>
- <listitem>
- <para>
- This is the preferred way of resetting a SATA device. In
- effect, it's identical to PATA hardware reset. Note that
- this can be done with the standard SCR Control register.
- As such, it's usually easier to implement than software
- reset.
- </para>
- </listitem>
- </varlistentry>
-
- </variablelist>
-
- <para>
- One more thing to consider when resetting devices is that
- resetting clears certain configuration parameters and they
- need to be set to their previous or newly adjusted values
- after reset.
- </para>
-
- <para>
- Parameters affected are.
- </para>
-
- <itemizedlist>
-
- <listitem>
- <para>
- CHS set up with INITIALIZE DEVICE PARAMETERS (seldom used)
- </para>
- </listitem>
-
- <listitem>
- <para>
- Parameters set with SET FEATURES including transfer mode setting
- </para>
- </listitem>
-
- <listitem>
- <para>
- Block count set with SET MULTIPLE MODE
- </para>
- </listitem>
-
- <listitem>
- <para>
- Other parameters (SET MAX, MEDIA LOCK...)
- </para>
- </listitem>
-
- </itemizedlist>
-
- <para>
- ATA/ATAPI standard specifies that some parameters must be
- maintained across hardware or software reset, but doesn't
- strictly specify all of them. Always reconfiguring needed
- parameters after reset is required for robustness. Note that
- this also applies when resuming from deep sleep (power-off).
- </para>
-
- <para>
- Also, ATA/ATAPI standard requires that IDENTIFY DEVICE /
- IDENTIFY PACKET DEVICE is issued after any configuration
- parameter is updated or a hardware reset and the result used
- for further operation. OS driver is required to implement
- revalidation mechanism to support this.
- </para>
-
- </sect2>
-
- <sect2 id="exrecReconf">
- <title>Reconfigure transport</title>
-
- <para>
- For both PATA and SATA, a lot of corners are cut for cheap
- connectors, cables or controllers and it's quite common to see
- high transmission error rate. This can be mitigated by
- lowering transmission speed.
- </para>
-
- <para>
- The following is a possible scheme Jeff Garzik suggested.
- </para>
-
- <blockquote>
- <para>
- If more than $N (3?) transmission errors happen in 15 minutes,
- </para>
- <itemizedlist>
- <listitem>
- <para>
- if SATA, decrease SATA PHY speed. if speed cannot be decreased,
- </para>
- </listitem>
- <listitem>
- <para>
- decrease UDMA xfer speed. if at UDMA0, switch to PIO4,
- </para>
- </listitem>
- <listitem>
- <para>
- decrease PIO xfer speed. if at PIO3, complain, but continue
- </para>
- </listitem>
- </itemizedlist>
- </blockquote>
-
- </sect2>
-
- </sect1>
-
- </chapter>
-
- <chapter id="PiixInt">
- <title>ata_piix Internals</title>
-!Idrivers/ata/ata_piix.c
- </chapter>
-
- <chapter id="SILInt">
- <title>sata_sil Internals</title>
-!Idrivers/ata/sata_sil.c
- </chapter>
-
- <chapter id="libataThanks">
- <title>Thanks</title>
- <para>
- The bulk of the ATA knowledge comes thanks to long conversations with
- Andre Hedrick (www.linux-ide.org), and long hours pondering the ATA
- and SCSI specifications.
- </para>
- <para>
- Thanks to Alan Cox for pointing out similarities
- between SATA and SCSI, and in general for motivation to hack on
- libata.
- </para>
- <para>
- libata's device detection
- method, ata_pio_devchk, and in general all the early probing was
- based on extensive study of Hale Landis's probe/reset code in his
- ATADRVR driver (www.ata-atapi.com).
- </para>
- </chapter>
-
-</book>
diff --git a/Documentation/DocBook/librs.tmpl b/Documentation/DocBook/librs.tmpl
deleted file mode 100644
index 94f21361e0ed..000000000000
--- a/Documentation/DocBook/librs.tmpl
+++ /dev/null
@@ -1,289 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
-
-<book id="Reed-Solomon-Library-Guide">
- <bookinfo>
- <title>Reed-Solomon Library Programming Interface</title>
-
- <authorgroup>
- <author>
- <firstname>Thomas</firstname>
- <surname>Gleixner</surname>
- <affiliation>
- <address>
- <email>tglx@linutronix.de</email>
- </address>
- </affiliation>
- </author>
- </authorgroup>
-
- <copyright>
- <year>2004</year>
- <holder>Thomas Gleixner</holder>
- </copyright>
-
- <legalnotice>
- <para>
- This documentation is free software; you can redistribute
- it and/or modify it under the terms of the GNU General Public
- License version 2 as published by the Free Software Foundation.
- </para>
-
- <para>
- This program is distributed in the hope that it will be
- useful, but WITHOUT ANY WARRANTY; without even the implied
- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- See the GNU General Public License for more details.
- </para>
-
- <para>
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- MA 02111-1307 USA
- </para>
-
- <para>
- For more details see the file COPYING in the source
- distribution of Linux.
- </para>
- </legalnotice>
- </bookinfo>
-
-<toc></toc>
-
- <chapter id="intro">
- <title>Introduction</title>
- <para>
- The generic Reed-Solomon Library provides encoding, decoding
- and error correction functions.
- </para>
- <para>
- Reed-Solomon codes are used in communication and storage
- applications to ensure data integrity.
- </para>
- <para>
- This documentation is provided for developers who want to utilize
- the functions provided by the library.
- </para>
- </chapter>
-
- <chapter id="bugs">
- <title>Known Bugs And Assumptions</title>
- <para>
- None.
- </para>
- </chapter>
-
- <chapter id="usage">
- <title>Usage</title>
- <para>
- This chapter provides examples of how to use the library.
- </para>
- <sect1>
- <title>Initializing</title>
- <para>
- The init function init_rs returns a pointer to an
- rs decoder structure, which holds the necessary
- information for encoding, decoding and error correction
- with the given polynomial. It either uses an existing
- matching decoder or creates a new one. On creation all
- the lookup tables for fast en/decoding are created.
- The function may take a while, so make sure not to
- call it in critical code paths.
- </para>
- <programlisting>
-/* the Reed Solomon control structure */
-static struct rs_control *rs_decoder;
-
-/* Symbolsize is 10 (bits)
- * Primitive polynomial is x^10+x^3+1
- * first consecutive root is 0
- * primitive element to generate roots = 1
- * generator polynomial degree (number of roots) = 6
- */
-rs_decoder = init_rs (10, 0x409, 0, 1, 6);
- </programlisting>
- </sect1>
- <sect1>
- <title>Encoding</title>
- <para>
- The encoder calculates the Reed-Solomon code over
- the given data length and stores the result in
- the parity buffer. Note that the parity buffer must
- be initialized before calling the encoder.
- </para>
- <para>
- The expanded data can be inverted on the fly by
- providing a non-zero inversion mask. The expanded data is
- XOR'ed with the mask. This is used e.g. for FLASH
- ECC, where the all 0xFF is inverted to an all 0x00.
- The Reed-Solomon code for all 0x00 is all 0x00. The
- code is inverted before storing to FLASH so it is 0xFF
- too. This prevents that reading from an erased FLASH
- results in ECC errors.
- </para>
- <para>
- The databytes are expanded to the given symbol size
- on the fly. There is no support for encoding continuous
- bitstreams with a symbol size != 8 at the moment. If
- it is necessary it should be not a big deal to implement
- such functionality.
- </para>
- <programlisting>
-/* Parity buffer. Size = number of roots */
-uint16_t par[6];
-/* Initialize the parity buffer */
-memset(par, 0, sizeof(par));
-/* Encode 512 byte in data8. Store parity in buffer par */
-encode_rs8 (rs_decoder, data8, 512, par, 0);
- </programlisting>
- </sect1>
- <sect1>
- <title>Decoding</title>
- <para>
- The decoder calculates the syndrome over
- the given data length and the received parity symbols
- and corrects errors in the data.
- </para>
- <para>
- If a syndrome is available from a hardware decoder
- then the syndrome calculation is skipped.
- </para>
- <para>
- The correction of the data buffer can be suppressed
- by providing a correction pattern buffer and an error
- location buffer to the decoder. The decoder stores the
- calculated error location and the correction bitmask
- in the given buffers. This is useful for hardware
- decoders which use a weird bit ordering scheme.
- </para>
- <para>
- The databytes are expanded to the given symbol size
- on the fly. There is no support for decoding continuous
- bitstreams with a symbolsize != 8 at the moment. If
- it is necessary it should be not a big deal to implement
- such functionality.
- </para>
-
- <sect2>
- <title>
- Decoding with syndrome calculation, direct data correction
- </title>
- <programlisting>
-/* Parity buffer. Size = number of roots */
-uint16_t par[6];
-uint8_t data[512];
-int numerr;
-/* Receive data */
-.....
-/* Receive parity */
-.....
-/* Decode 512 byte in data8.*/
-numerr = decode_rs8 (rs_decoder, data8, par, 512, NULL, 0, NULL, 0, NULL);
- </programlisting>
- </sect2>
-
- <sect2>
- <title>
- Decoding with syndrome given by hardware decoder, direct data correction
- </title>
- <programlisting>
-/* Parity buffer. Size = number of roots */
-uint16_t par[6], syn[6];
-uint8_t data[512];
-int numerr;
-/* Receive data */
-.....
-/* Receive parity */
-.....
-/* Get syndrome from hardware decoder */
-.....
-/* Decode 512 byte in data8.*/
-numerr = decode_rs8 (rs_decoder, data8, par, 512, syn, 0, NULL, 0, NULL);
- </programlisting>
- </sect2>
-
- <sect2>
- <title>
- Decoding with syndrome given by hardware decoder, no direct data correction.
- </title>
- <para>
- Note: It's not necessary to give data and received parity to the decoder.
- </para>
- <programlisting>
-/* Parity buffer. Size = number of roots */
-uint16_t par[6], syn[6], corr[8];
-uint8_t data[512];
-int numerr, errpos[8];
-/* Receive data */
-.....
-/* Receive parity */
-.....
-/* Get syndrome from hardware decoder */
-.....
-/* Decode 512 byte in data8.*/
-numerr = decode_rs8 (rs_decoder, NULL, NULL, 512, syn, 0, errpos, 0, corr);
-for (i = 0; i &lt; numerr; i++) {
- do_error_correction_in_your_buffer(errpos[i], corr[i]);
-}
- </programlisting>
- </sect2>
- </sect1>
- <sect1>
- <title>Cleanup</title>
- <para>
- The function free_rs frees the allocated resources,
- if the caller is the last user of the decoder.
- </para>
- <programlisting>
-/* Release resources */
-free_rs(rs_decoder);
- </programlisting>
- </sect1>
-
- </chapter>
-
- <chapter id="structs">
- <title>Structures</title>
- <para>
- This chapter contains the autogenerated documentation of the structures which are
- used in the Reed-Solomon Library and are relevant for a developer.
- </para>
-!Iinclude/linux/rslib.h
- </chapter>
-
- <chapter id="pubfunctions">
- <title>Public Functions Provided</title>
- <para>
- This chapter contains the autogenerated documentation of the Reed-Solomon functions
- which are exported.
- </para>
-!Elib/reed_solomon/reed_solomon.c
- </chapter>
-
- <chapter id="credits">
- <title>Credits</title>
- <para>
- The library code for encoding and decoding was written by Phil Karn.
- </para>
- <programlisting>
- Copyright 2002, Phil Karn, KA9Q
- May be used under the terms of the GNU General Public License (GPL)
- </programlisting>
- <para>
- The wrapper functions and interfaces are written by Thomas Gleixner.
- </para>
- <para>
- Many users have provided bugfixes, improvements and helping hands for testing.
- Thanks a lot.
- </para>
- <para>
- The following people have contributed to this document:
- </para>
- <para>
- Thomas Gleixner<email>tglx@linutronix.de</email>
- </para>
- </chapter>
-</book>
diff --git a/Documentation/DocBook/lsm.tmpl b/Documentation/DocBook/lsm.tmpl
deleted file mode 100644
index fe7664ce9667..000000000000
--- a/Documentation/DocBook/lsm.tmpl
+++ /dev/null
@@ -1,265 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
-
-<article class="whitepaper" id="LinuxSecurityModule" lang="en">
- <articleinfo>
- <title>Linux Security Modules: General Security Hooks for Linux</title>
- <authorgroup>
- <author>
- <firstname>Stephen</firstname>
- <surname>Smalley</surname>
- <affiliation>
- <orgname>NAI Labs</orgname>
- <address><email>ssmalley@nai.com</email></address>
- </affiliation>
- </author>
- <author>
- <firstname>Timothy</firstname>
- <surname>Fraser</surname>
- <affiliation>
- <orgname>NAI Labs</orgname>
- <address><email>tfraser@nai.com</email></address>
- </affiliation>
- </author>
- <author>
- <firstname>Chris</firstname>
- <surname>Vance</surname>
- <affiliation>
- <orgname>NAI Labs</orgname>
- <address><email>cvance@nai.com</email></address>
- </affiliation>
- </author>
- </authorgroup>
- </articleinfo>
-
-<sect1 id="Introduction"><title>Introduction</title>
-
-<para>
-In March 2001, the National Security Agency (NSA) gave a presentation
-about Security-Enhanced Linux (SELinux) at the 2.5 Linux Kernel
-Summit. SELinux is an implementation of flexible and fine-grained
-nondiscretionary access controls in the Linux kernel, originally
-implemented as its own particular kernel patch. Several other
-security projects (e.g. RSBAC, Medusa) have also developed flexible
-access control architectures for the Linux kernel, and various
-projects have developed particular access control models for Linux
-(e.g. LIDS, DTE, SubDomain). Each project has developed and
-maintained its own kernel patch to support its security needs.
-</para>
-
-<para>
-In response to the NSA presentation, Linus Torvalds made a set of
-remarks that described a security framework he would be willing to
-consider for inclusion in the mainstream Linux kernel. He described a
-general framework that would provide a set of security hooks to
-control operations on kernel objects and a set of opaque security
-fields in kernel data structures for maintaining security attributes.
-This framework could then be used by loadable kernel modules to
-implement any desired model of security. Linus also suggested the
-possibility of migrating the Linux capabilities code into such a
-module.
-</para>
-
-<para>
-The Linux Security Modules (LSM) project was started by WireX to
-develop such a framework. LSM is a joint development effort by
-several security projects, including Immunix, SELinux, SGI and Janus,
-and several individuals, including Greg Kroah-Hartman and James
-Morris, to develop a Linux kernel patch that implements this
-framework. The patch is currently tracking the 2.4 series and is
-targeted for integration into the 2.5 development series. This
-technical report provides an overview of the framework and the example
-capabilities security module provided by the LSM kernel patch.
-</para>
-
-</sect1>
-
-<sect1 id="framework"><title>LSM Framework</title>
-
-<para>
-The LSM kernel patch provides a general kernel framework to support
-security modules. In particular, the LSM framework is primarily
-focused on supporting access control modules, although future
-development is likely to address other security needs such as
-auditing. By itself, the framework does not provide any additional
-security; it merely provides the infrastructure to support security
-modules. The LSM kernel patch also moves most of the capabilities
-logic into an optional security module, with the system defaulting
-to the traditional superuser logic. This capabilities module
-is discussed further in <xref linkend="cap"/>.
-</para>
-
-<para>
-The LSM kernel patch adds security fields to kernel data structures
-and inserts calls to hook functions at critical points in the kernel
-code to manage the security fields and to perform access control. It
-also adds functions for registering and unregistering security
-modules, and adds a general <function>security</function> system call
-to support new system calls for security-aware applications.
-</para>
-
-<para>
-The LSM security fields are simply <type>void*</type> pointers. For
-process and program execution security information, security fields
-were added to <structname>struct task_struct</structname> and
-<structname>struct linux_binprm</structname>. For filesystem security
-information, a security field was added to
-<structname>struct super_block</structname>. For pipe, file, and socket
-security information, security fields were added to
-<structname>struct inode</structname> and
-<structname>struct file</structname>. For packet and network device security
-information, security fields were added to
-<structname>struct sk_buff</structname> and
-<structname>struct net_device</structname>. For System V IPC security
-information, security fields were added to
-<structname>struct kern_ipc_perm</structname> and
-<structname>struct msg_msg</structname>; additionally, the definitions
-for <structname>struct msg_msg</structname>, <structname>struct
-msg_queue</structname>, and <structname>struct
-shmid_kernel</structname> were moved to header files
-(<filename>include/linux/msg.h</filename> and
-<filename>include/linux/shm.h</filename> as appropriate) to allow
-the security modules to use these definitions.
-</para>
-
-<para>
-Each LSM hook is a function pointer in a global table,
-security_ops. This table is a
-<structname>security_operations</structname> structure as defined by
-<filename>include/linux/security.h</filename>. Detailed documentation
-for each hook is included in this header file. At present, this
-structure consists of a collection of substructures that group related
-hooks based on the kernel object (e.g. task, inode, file, sk_buff,
-etc) as well as some top-level hook function pointers for system
-operations. This structure is likely to be flattened in the future
-for performance. The placement of the hook calls in the kernel code
-is described by the "called:" lines in the per-hook documentation in
-the header file. The hook calls can also be easily found in the
-kernel code by looking for the string "security_ops->".
-
-</para>
-
-<para>
-Linus mentioned per-process security hooks in his original remarks as a
-possible alternative to global security hooks. However, if LSM were
-to start from the perspective of per-process hooks, then the base
-framework would have to deal with how to handle operations that
-involve multiple processes (e.g. kill), since each process might have
-its own hook for controlling the operation. This would require a
-general mechanism for composing hooks in the base framework.
-Additionally, LSM would still need global hooks for operations that
-have no process context (e.g. network input operations).
-Consequently, LSM provides global security hooks, but a security
-module is free to implement per-process hooks (where that makes sense)
-by storing a security_ops table in each process' security field and
-then invoking these per-process hooks from the global hooks.
-The problem of composition is thus deferred to the module.
-</para>
-
-<para>
-The global security_ops table is initialized to a set of hook
-functions provided by a dummy security module that provides
-traditional superuser logic. A <function>register_security</function>
-function (in <filename>security/security.c</filename>) is provided to
-allow a security module to set security_ops to refer to its own hook
-functions, and an <function>unregister_security</function> function is
-provided to revert security_ops to the dummy module hooks. This
-mechanism is used to set the primary security module, which is
-responsible for making the final decision for each hook.
-</para>
-
-<para>
-LSM also provides a simple mechanism for stacking additional security
-modules with the primary security module. It defines
-<function>register_security</function> and
-<function>unregister_security</function> hooks in the
-<structname>security_operations</structname> structure and provides
-<function>mod_reg_security</function> and
-<function>mod_unreg_security</function> functions that invoke these
-hooks after performing some sanity checking. A security module can
-call these functions in order to stack with other modules. However,
-the actual details of how this stacking is handled are deferred to the
-module, which can implement these hooks in any way it wishes
-(including always returning an error if it does not wish to support
-stacking). In this manner, LSM again defers the problem of
-composition to the module.
-</para>
-
-<para>
-Although the LSM hooks are organized into substructures based on
-kernel object, all of the hooks can be viewed as falling into two
-major categories: hooks that are used to manage the security fields
-and hooks that are used to perform access control. Examples of the
-first category of hooks include the
-<function>alloc_security</function> and
-<function>free_security</function> hooks defined for each kernel data
-structure that has a security field. These hooks are used to allocate
-and free security structures for kernel objects. The first category
-of hooks also includes hooks that set information in the security
-field after allocation, such as the <function>post_lookup</function>
-hook in <structname>struct inode_security_ops</structname>. This hook
-is used to set security information for inodes after successful lookup
-operations. An example of the second category of hooks is the
-<function>permission</function> hook in
-<structname>struct inode_security_ops</structname>. This hook checks
-permission when accessing an inode.
-</para>
-
-</sect1>
-
-<sect1 id="cap"><title>LSM Capabilities Module</title>
-
-<para>
-The LSM kernel patch moves most of the existing POSIX.1e capabilities
-logic into an optional security module stored in the file
-<filename>security/capability.c</filename>. This change allows
-users who do not want to use capabilities to omit this code entirely
-from their kernel, instead using the dummy module for traditional
-superuser logic or any other module that they desire. This change
-also allows the developers of the capabilities logic to maintain and
-enhance their code more freely, without needing to integrate patches
-back into the base kernel.
-</para>
-
-<para>
-In addition to moving the capabilities logic, the LSM kernel patch
-could move the capability-related fields from the kernel data
-structures into the new security fields managed by the security
-modules. However, at present, the LSM kernel patch leaves the
-capability fields in the kernel data structures. In his original
-remarks, Linus suggested that this might be preferable so that other
-security modules can be easily stacked with the capabilities module
-without needing to chain multiple security structures on the security field.
-It also avoids imposing extra overhead on the capabilities module
-to manage the security fields. However, the LSM framework could
-certainly support such a move if it is determined to be desirable,
-with only a few additional changes described below.
-</para>
-
-<para>
-At present, the capabilities logic for computing process capabilities
-on <function>execve</function> and <function>set*uid</function>,
-checking capabilities for a particular process, saving and checking
-capabilities for netlink messages, and handling the
-<function>capget</function> and <function>capset</function> system
-calls have been moved into the capabilities module. There are still a
-few locations in the base kernel where capability-related fields are
-directly examined or modified, but the current version of the LSM
-patch does allow a security module to completely replace the
-assignment and testing of capabilities. These few locations would
-need to be changed if the capability-related fields were moved into
-the security field. The following is a list of known locations that
-still perform such direct examination or modification of
-capability-related fields:
-<itemizedlist>
-<listitem><para><filename>fs/open.c</filename>:<function>sys_access</function></para></listitem>
-<listitem><para><filename>fs/lockd/host.c</filename>:<function>nlm_bind_host</function></para></listitem>
-<listitem><para><filename>fs/nfsd/auth.c</filename>:<function>nfsd_setuser</function></para></listitem>
-<listitem><para><filename>fs/proc/array.c</filename>:<function>task_cap</function></para></listitem>
-</itemizedlist>
-</para>
-
-</sect1>
-
-</article>
diff --git a/Documentation/DocBook/mtdnand.tmpl b/Documentation/DocBook/mtdnand.tmpl
deleted file mode 100644
index b442921bca54..000000000000
--- a/Documentation/DocBook/mtdnand.tmpl
+++ /dev/null
@@ -1,1291 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
-
-<book id="MTD-NAND-Guide">
- <bookinfo>
- <title>MTD NAND Driver Programming Interface</title>
-
- <authorgroup>
- <author>
- <firstname>Thomas</firstname>
- <surname>Gleixner</surname>
- <affiliation>
- <address>
- <email>tglx@linutronix.de</email>
- </address>
- </affiliation>
- </author>
- </authorgroup>
-
- <copyright>
- <year>2004</year>
- <holder>Thomas Gleixner</holder>
- </copyright>
-
- <legalnotice>
- <para>
- This documentation is free software; you can redistribute
- it and/or modify it under the terms of the GNU General Public
- License version 2 as published by the Free Software Foundation.
- </para>
-
- <para>
- This program is distributed in the hope that it will be
- useful, but WITHOUT ANY WARRANTY; without even the implied
- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- See the GNU General Public License for more details.
- </para>
-
- <para>
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- MA 02111-1307 USA
- </para>
-
- <para>
- For more details see the file COPYING in the source
- distribution of Linux.
- </para>
- </legalnotice>
- </bookinfo>
-
-<toc></toc>
-
- <chapter id="intro">
- <title>Introduction</title>
- <para>
- The generic NAND driver supports almost all NAND and AG-AND based
- chips and connects them to the Memory Technology Devices (MTD)
- subsystem of the Linux Kernel.
- </para>
- <para>
- This documentation is provided for developers who want to implement
- board drivers or filesystem drivers suitable for NAND devices.
- </para>
- </chapter>
-
- <chapter id="bugs">
- <title>Known Bugs And Assumptions</title>
- <para>
- None.
- </para>
- </chapter>
-
- <chapter id="dochints">
- <title>Documentation hints</title>
- <para>
- The function and structure docs are autogenerated. Each function and
- struct member has a short description which is marked with an [XXX] identifier.
- The following chapters explain the meaning of those identifiers.
- </para>
- <sect1 id="Function_identifiers_XXX">
- <title>Function identifiers [XXX]</title>
- <para>
- The functions are marked with [XXX] identifiers in the short
- comment. The identifiers explain the usage and scope of the
- functions. Following identifiers are used:
- </para>
- <itemizedlist>
- <listitem><para>
- [MTD Interface]</para><para>
- These functions provide the interface to the MTD kernel API.
- They are not replaceable and provide functionality
- which is complete hardware independent.
- </para></listitem>
- <listitem><para>
- [NAND Interface]</para><para>
- These functions are exported and provide the interface to the NAND kernel API.
- </para></listitem>
- <listitem><para>
- [GENERIC]</para><para>
- Generic functions are not replaceable and provide functionality
- which is complete hardware independent.
- </para></listitem>
- <listitem><para>
- [DEFAULT]</para><para>
- Default functions provide hardware related functionality which is suitable
- for most of the implementations. These functions can be replaced by the
- board driver if necessary. Those functions are called via pointers in the
- NAND chip description structure. The board driver can set the functions which
- should be replaced by board dependent functions before calling nand_scan().
- If the function pointer is NULL on entry to nand_scan() then the pointer
- is set to the default function which is suitable for the detected chip type.
- </para></listitem>
- </itemizedlist>
- </sect1>
- <sect1 id="Struct_member_identifiers_XXX">
- <title>Struct member identifiers [XXX]</title>
- <para>
- The struct members are marked with [XXX] identifiers in the
- comment. The identifiers explain the usage and scope of the
- members. Following identifiers are used:
- </para>
- <itemizedlist>
- <listitem><para>
- [INTERN]</para><para>
- These members are for NAND driver internal use only and must not be
- modified. Most of these values are calculated from the chip geometry
- information which is evaluated during nand_scan().
- </para></listitem>
- <listitem><para>
- [REPLACEABLE]</para><para>
- Replaceable members hold hardware related functions which can be
- provided by the board driver. The board driver can set the functions which
- should be replaced by board dependent functions before calling nand_scan().
- If the function pointer is NULL on entry to nand_scan() then the pointer
- is set to the default function which is suitable for the detected chip type.
- </para></listitem>
- <listitem><para>
- [BOARDSPECIFIC]</para><para>
- Board specific members hold hardware related information which must
- be provided by the board driver. The board driver must set the function
- pointers and datafields before calling nand_scan().
- </para></listitem>
- <listitem><para>
- [OPTIONAL]</para><para>
- Optional members can hold information relevant for the board driver. The
- generic NAND driver code does not use this information.
- </para></listitem>
- </itemizedlist>
- </sect1>
- </chapter>
-
- <chapter id="basicboarddriver">
- <title>Basic board driver</title>
- <para>
- For most boards it will be sufficient to provide just the
- basic functions and fill out some really board dependent
- members in the nand chip description structure.
- </para>
- <sect1 id="Basic_defines">
- <title>Basic defines</title>
- <para>
- At least you have to provide a nand_chip structure
- and a storage for the ioremap'ed chip address.
- You can allocate the nand_chip structure using
- kmalloc or you can allocate it statically.
- The NAND chip structure embeds an mtd structure
- which will be registered to the MTD subsystem.
- You can extract a pointer to the mtd structure
- from a nand_chip pointer using the nand_to_mtd()
- helper.
- </para>
- <para>
- Kmalloc based example
- </para>
- <programlisting>
-static struct mtd_info *board_mtd;
-static void __iomem *baseaddr;
- </programlisting>
- <para>
- Static example
- </para>
- <programlisting>
-static struct nand_chip board_chip;
-static void __iomem *baseaddr;
- </programlisting>
- </sect1>
- <sect1 id="Partition_defines">
- <title>Partition defines</title>
- <para>
- If you want to divide your device into partitions, then
- define a partitioning scheme suitable to your board.
- </para>
- <programlisting>
-#define NUM_PARTITIONS 2
-static struct mtd_partition partition_info[] = {
- { .name = "Flash partition 1",
- .offset = 0,
- .size = 8 * 1024 * 1024 },
- { .name = "Flash partition 2",
- .offset = MTDPART_OFS_NEXT,
- .size = MTDPART_SIZ_FULL },
-};
- </programlisting>
- </sect1>
- <sect1 id="Hardware_control_functions">
- <title>Hardware control function</title>
- <para>
- The hardware control function provides access to the
- control pins of the NAND chip(s).
- The access can be done by GPIO pins or by address lines.
- If you use address lines, make sure that the timing
- requirements are met.
- </para>
- <para>
- <emphasis>GPIO based example</emphasis>
- </para>
- <programlisting>
-static void board_hwcontrol(struct mtd_info *mtd, int cmd)
-{
- switch(cmd){
- case NAND_CTL_SETCLE: /* Set CLE pin high */ break;
- case NAND_CTL_CLRCLE: /* Set CLE pin low */ break;
- case NAND_CTL_SETALE: /* Set ALE pin high */ break;
- case NAND_CTL_CLRALE: /* Set ALE pin low */ break;
- case NAND_CTL_SETNCE: /* Set nCE pin low */ break;
- case NAND_CTL_CLRNCE: /* Set nCE pin high */ break;
- }
-}
- </programlisting>
- <para>
- <emphasis>Address lines based example.</emphasis> It's assumed that the
- nCE pin is driven by a chip select decoder.
- </para>
- <programlisting>
-static void board_hwcontrol(struct mtd_info *mtd, int cmd)
-{
- struct nand_chip *this = mtd_to_nand(mtd);
- switch(cmd){
- case NAND_CTL_SETCLE: this->IO_ADDR_W |= CLE_ADRR_BIT; break;
- case NAND_CTL_CLRCLE: this->IO_ADDR_W &amp;= ~CLE_ADRR_BIT; break;
- case NAND_CTL_SETALE: this->IO_ADDR_W |= ALE_ADRR_BIT; break;
- case NAND_CTL_CLRALE: this->IO_ADDR_W &amp;= ~ALE_ADRR_BIT; break;
- }
-}
- </programlisting>
- </sect1>
- <sect1 id="Device_ready_function">
- <title>Device ready function</title>
- <para>
- If the hardware interface has the ready busy pin of the NAND chip connected to a
- GPIO or other accessible I/O pin, this function is used to read back the state of the
- pin. The function has no arguments and should return 0, if the device is busy (R/B pin
- is low) and 1, if the device is ready (R/B pin is high).
- If the hardware interface does not give access to the ready busy pin, then
- the function must not be defined and the function pointer this->dev_ready is set to NULL.
- </para>
- </sect1>
- <sect1 id="Init_function">
- <title>Init function</title>
- <para>
- The init function allocates memory and sets up all the board
- specific parameters and function pointers. When everything
- is set up nand_scan() is called. This function tries to
- detect and identify then chip. If a chip is found all the
- internal data fields are initialized accordingly.
- The structure(s) have to be zeroed out first and then filled with the necessary
- information about the device.
- </para>
- <programlisting>
-static int __init board_init (void)
-{
- struct nand_chip *this;
- int err = 0;
-
- /* Allocate memory for MTD device structure and private data */
- this = kzalloc(sizeof(struct nand_chip), GFP_KERNEL);
- if (!this) {
- printk ("Unable to allocate NAND MTD device structure.\n");
- err = -ENOMEM;
- goto out;
- }
-
- board_mtd = nand_to_mtd(this);
-
- /* map physical address */
- baseaddr = ioremap(CHIP_PHYSICAL_ADDRESS, 1024);
- if (!baseaddr) {
- printk("Ioremap to access NAND chip failed\n");
- err = -EIO;
- goto out_mtd;
- }
-
- /* Set address of NAND IO lines */
- this->IO_ADDR_R = baseaddr;
- this->IO_ADDR_W = baseaddr;
- /* Reference hardware control function */
- this->hwcontrol = board_hwcontrol;
- /* Set command delay time, see datasheet for correct value */
- this->chip_delay = CHIP_DEPENDEND_COMMAND_DELAY;
- /* Assign the device ready function, if available */
- this->dev_ready = board_dev_ready;
- this->eccmode = NAND_ECC_SOFT;
-
- /* Scan to find existence of the device */
- if (nand_scan (board_mtd, 1)) {
- err = -ENXIO;
- goto out_ior;
- }
-
- add_mtd_partitions(board_mtd, partition_info, NUM_PARTITIONS);
- goto out;
-
-out_ior:
- iounmap(baseaddr);
-out_mtd:
- kfree (this);
-out:
- return err;
-}
-module_init(board_init);
- </programlisting>
- </sect1>
- <sect1 id="Exit_function">
- <title>Exit function</title>
- <para>
- The exit function is only necessary if the driver is
- compiled as a module. It releases all resources which
- are held by the chip driver and unregisters the partitions
- in the MTD layer.
- </para>
- <programlisting>
-#ifdef MODULE
-static void __exit board_cleanup (void)
-{
- /* Release resources, unregister device */
- nand_release (board_mtd);
-
- /* unmap physical address */
- iounmap(baseaddr);
-
- /* Free the MTD device structure */
- kfree (mtd_to_nand(board_mtd));
-}
-module_exit(board_cleanup);
-#endif
- </programlisting>
- </sect1>
- </chapter>
-
- <chapter id="boarddriversadvanced">
- <title>Advanced board driver functions</title>
- <para>
- This chapter describes the advanced functionality of the NAND
- driver. For a list of functions which can be overridden by the board
- driver see the documentation of the nand_chip structure.
- </para>
- <sect1 id="Multiple_chip_control">
- <title>Multiple chip control</title>
- <para>
- The nand driver can control chip arrays. Therefore the
- board driver must provide an own select_chip function. This
- function must (de)select the requested chip.
- The function pointer in the nand_chip structure must
- be set before calling nand_scan(). The maxchip parameter
- of nand_scan() defines the maximum number of chips to
- scan for. Make sure that the select_chip function can
- handle the requested number of chips.
- </para>
- <para>
- The nand driver concatenates the chips to one virtual
- chip and provides this virtual chip to the MTD layer.
- </para>
- <para>
- <emphasis>Note: The driver can only handle linear chip arrays
- of equally sized chips. There is no support for
- parallel arrays which extend the buswidth.</emphasis>
- </para>
- <para>
- <emphasis>GPIO based example</emphasis>
- </para>
- <programlisting>
-static void board_select_chip (struct mtd_info *mtd, int chip)
-{
- /* Deselect all chips, set all nCE pins high */
- GPIO(BOARD_NAND_NCE) |= 0xff;
- if (chip >= 0)
- GPIO(BOARD_NAND_NCE) &amp;= ~ (1 &lt;&lt; chip);
-}
- </programlisting>
- <para>
- <emphasis>Address lines based example.</emphasis>
- Its assumed that the nCE pins are connected to an
- address decoder.
- </para>
- <programlisting>
-static void board_select_chip (struct mtd_info *mtd, int chip)
-{
- struct nand_chip *this = mtd_to_nand(mtd);
-
- /* Deselect all chips */
- this->IO_ADDR_R &amp;= ~BOARD_NAND_ADDR_MASK;
- this->IO_ADDR_W &amp;= ~BOARD_NAND_ADDR_MASK;
- switch (chip) {
- case 0:
- this->IO_ADDR_R |= BOARD_NAND_ADDR_CHIP0;
- this->IO_ADDR_W |= BOARD_NAND_ADDR_CHIP0;
- break;
- ....
- case n:
- this->IO_ADDR_R |= BOARD_NAND_ADDR_CHIPn;
- this->IO_ADDR_W |= BOARD_NAND_ADDR_CHIPn;
- break;
- }
-}
- </programlisting>
- </sect1>
- <sect1 id="Hardware_ECC_support">
- <title>Hardware ECC support</title>
- <sect2 id="Functions_and_constants">
- <title>Functions and constants</title>
- <para>
- The nand driver supports three different types of
- hardware ECC.
- <itemizedlist>
- <listitem><para>NAND_ECC_HW3_256</para><para>
- Hardware ECC generator providing 3 bytes ECC per
- 256 byte.
- </para> </listitem>
- <listitem><para>NAND_ECC_HW3_512</para><para>
- Hardware ECC generator providing 3 bytes ECC per
- 512 byte.
- </para> </listitem>
- <listitem><para>NAND_ECC_HW6_512</para><para>
- Hardware ECC generator providing 6 bytes ECC per
- 512 byte.
- </para> </listitem>
- <listitem><para>NAND_ECC_HW8_512</para><para>
- Hardware ECC generator providing 6 bytes ECC per
- 512 byte.
- </para> </listitem>
- </itemizedlist>
- If your hardware generator has a different functionality
- add it at the appropriate place in nand_base.c
- </para>
- <para>
- The board driver must provide following functions:
- <itemizedlist>
- <listitem><para>enable_hwecc</para><para>
- This function is called before reading / writing to
- the chip. Reset or initialize the hardware generator
- in this function. The function is called with an
- argument which let you distinguish between read
- and write operations.
- </para> </listitem>
- <listitem><para>calculate_ecc</para><para>
- This function is called after read / write from / to
- the chip. Transfer the ECC from the hardware to
- the buffer. If the option NAND_HWECC_SYNDROME is set
- then the function is only called on write. See below.
- </para> </listitem>
- <listitem><para>correct_data</para><para>
- In case of an ECC error this function is called for
- error detection and correction. Return 1 respectively 2
- in case the error can be corrected. If the error is
- not correctable return -1. If your hardware generator
- matches the default algorithm of the nand_ecc software
- generator then use the correction function provided
- by nand_ecc instead of implementing duplicated code.
- </para> </listitem>
- </itemizedlist>
- </para>
- </sect2>
- <sect2 id="Hardware_ECC_with_syndrome_calculation">
- <title>Hardware ECC with syndrome calculation</title>
- <para>
- Many hardware ECC implementations provide Reed-Solomon
- codes and calculate an error syndrome on read. The syndrome
- must be converted to a standard Reed-Solomon syndrome
- before calling the error correction code in the generic
- Reed-Solomon library.
- </para>
- <para>
- The ECC bytes must be placed immediately after the data
- bytes in order to make the syndrome generator work. This
- is contrary to the usual layout used by software ECC. The
- separation of data and out of band area is not longer
- possible. The nand driver code handles this layout and
- the remaining free bytes in the oob area are managed by
- the autoplacement code. Provide a matching oob-layout
- in this case. See rts_from4.c and diskonchip.c for
- implementation reference. In those cases we must also
- use bad block tables on FLASH, because the ECC layout is
- interfering with the bad block marker positions.
- See bad block table support for details.
- </para>
- </sect2>
- </sect1>
- <sect1 id="Bad_Block_table_support">
- <title>Bad block table support</title>
- <para>
- Most NAND chips mark the bad blocks at a defined
- position in the spare area. Those blocks must
- not be erased under any circumstances as the bad
- block information would be lost.
- It is possible to check the bad block mark each
- time when the blocks are accessed by reading the
- spare area of the first page in the block. This
- is time consuming so a bad block table is used.
- </para>
- <para>
- The nand driver supports various types of bad block
- tables.
- <itemizedlist>
- <listitem><para>Per device</para><para>
- The bad block table contains all bad block information
- of the device which can consist of multiple chips.
- </para> </listitem>
- <listitem><para>Per chip</para><para>
- A bad block table is used per chip and contains the
- bad block information for this particular chip.
- </para> </listitem>
- <listitem><para>Fixed offset</para><para>
- The bad block table is located at a fixed offset
- in the chip (device). This applies to various
- DiskOnChip devices.
- </para> </listitem>
- <listitem><para>Automatic placed</para><para>
- The bad block table is automatically placed and
- detected either at the end or at the beginning
- of a chip (device)
- </para> </listitem>
- <listitem><para>Mirrored tables</para><para>
- The bad block table is mirrored on the chip (device) to
- allow updates of the bad block table without data loss.
- </para> </listitem>
- </itemizedlist>
- </para>
- <para>
- nand_scan() calls the function nand_default_bbt().
- nand_default_bbt() selects appropriate default
- bad block table descriptors depending on the chip information
- which was retrieved by nand_scan().
- </para>
- <para>
- The standard policy is scanning the device for bad
- blocks and build a ram based bad block table which
- allows faster access than always checking the
- bad block information on the flash chip itself.
- </para>
- <sect2 id="Flash_based_tables">
- <title>Flash based tables</title>
- <para>
- It may be desired or necessary to keep a bad block table in FLASH.
- For AG-AND chips this is mandatory, as they have no factory marked
- bad blocks. They have factory marked good blocks. The marker pattern
- is erased when the block is erased to be reused. So in case of
- powerloss before writing the pattern back to the chip this block
- would be lost and added to the bad blocks. Therefore we scan the
- chip(s) when we detect them the first time for good blocks and
- store this information in a bad block table before erasing any
- of the blocks.
- </para>
- <para>
- The blocks in which the tables are stored are protected against
- accidental access by marking them bad in the memory bad block
- table. The bad block table management functions are allowed
- to circumvent this protection.
- </para>
- <para>
- The simplest way to activate the FLASH based bad block table support
- is to set the option NAND_BBT_USE_FLASH in the bbt_option field of
- the nand chip structure before calling nand_scan(). For AG-AND
- chips is this done by default.
- This activates the default FLASH based bad block table functionality
- of the NAND driver. The default bad block table options are
- <itemizedlist>
- <listitem><para>Store bad block table per chip</para></listitem>
- <listitem><para>Use 2 bits per block</para></listitem>
- <listitem><para>Automatic placement at the end of the chip</para></listitem>
- <listitem><para>Use mirrored tables with version numbers</para></listitem>
- <listitem><para>Reserve 4 blocks at the end of the chip</para></listitem>
- </itemizedlist>
- </para>
- </sect2>
- <sect2 id="User_defined_tables">
- <title>User defined tables</title>
- <para>
- User defined tables are created by filling out a
- nand_bbt_descr structure and storing the pointer in the
- nand_chip structure member bbt_td before calling nand_scan().
- If a mirror table is necessary a second structure must be
- created and a pointer to this structure must be stored
- in bbt_md inside the nand_chip structure. If the bbt_md
- member is set to NULL then only the main table is used
- and no scan for the mirrored table is performed.
- </para>
- <para>
- The most important field in the nand_bbt_descr structure
- is the options field. The options define most of the
- table properties. Use the predefined constants from
- nand.h to define the options.
- <itemizedlist>
- <listitem><para>Number of bits per block</para>
- <para>The supported number of bits is 1, 2, 4, 8.</para></listitem>
- <listitem><para>Table per chip</para>
- <para>Setting the constant NAND_BBT_PERCHIP selects that
- a bad block table is managed for each chip in a chip array.
- If this option is not set then a per device bad block table
- is used.</para></listitem>
- <listitem><para>Table location is absolute</para>
- <para>Use the option constant NAND_BBT_ABSPAGE and
- define the absolute page number where the bad block
- table starts in the field pages. If you have selected bad block
- tables per chip and you have a multi chip array then the start page
- must be given for each chip in the chip array. Note: there is no scan
- for a table ident pattern performed, so the fields
- pattern, veroffs, offs, len can be left uninitialized</para></listitem>
- <listitem><para>Table location is automatically detected</para>
- <para>The table can either be located in the first or the last good
- blocks of the chip (device). Set NAND_BBT_LASTBLOCK to place
- the bad block table at the end of the chip (device). The
- bad block tables are marked and identified by a pattern which
- is stored in the spare area of the first page in the block which
- holds the bad block table. Store a pointer to the pattern
- in the pattern field. Further the length of the pattern has to be
- stored in len and the offset in the spare area must be given
- in the offs member of the nand_bbt_descr structure. For mirrored
- bad block tables different patterns are mandatory.</para></listitem>
- <listitem><para>Table creation</para>
- <para>Set the option NAND_BBT_CREATE to enable the table creation
- if no table can be found during the scan. Usually this is done only
- once if a new chip is found. </para></listitem>
- <listitem><para>Table write support</para>
- <para>Set the option NAND_BBT_WRITE to enable the table write support.
- This allows the update of the bad block table(s) in case a block has
- to be marked bad due to wear. The MTD interface function block_markbad
- is calling the update function of the bad block table. If the write
- support is enabled then the table is updated on FLASH.</para>
- <para>
- Note: Write support should only be enabled for mirrored tables with
- version control.
- </para></listitem>
- <listitem><para>Table version control</para>
- <para>Set the option NAND_BBT_VERSION to enable the table version control.
- It's highly recommended to enable this for mirrored tables with write
- support. It makes sure that the risk of losing the bad block
- table information is reduced to the loss of the information about the
- one worn out block which should be marked bad. The version is stored in
- 4 consecutive bytes in the spare area of the device. The position of
- the version number is defined by the member veroffs in the bad block table
- descriptor.</para></listitem>
- <listitem><para>Save block contents on write</para>
- <para>
- In case that the block which holds the bad block table does contain
- other useful information, set the option NAND_BBT_SAVECONTENT. When
- the bad block table is written then the whole block is read the bad
- block table is updated and the block is erased and everything is
- written back. If this option is not set only the bad block table
- is written and everything else in the block is ignored and erased.
- </para></listitem>
- <listitem><para>Number of reserved blocks</para>
- <para>
- For automatic placement some blocks must be reserved for
- bad block table storage. The number of reserved blocks is defined
- in the maxblocks member of the bad block table description structure.
- Reserving 4 blocks for mirrored tables should be a reasonable number.
- This also limits the number of blocks which are scanned for the bad
- block table ident pattern.
- </para></listitem>
- </itemizedlist>
- </para>
- </sect2>
- </sect1>
- <sect1 id="Spare_area_placement">
- <title>Spare area (auto)placement</title>
- <para>
- The nand driver implements different possibilities for
- placement of filesystem data in the spare area,
- <itemizedlist>
- <listitem><para>Placement defined by fs driver</para></listitem>
- <listitem><para>Automatic placement</para></listitem>
- </itemizedlist>
- The default placement function is automatic placement. The
- nand driver has built in default placement schemes for the
- various chiptypes. If due to hardware ECC functionality the
- default placement does not fit then the board driver can
- provide a own placement scheme.
- </para>
- <para>
- File system drivers can provide a own placement scheme which
- is used instead of the default placement scheme.
- </para>
- <para>
- Placement schemes are defined by a nand_oobinfo structure
- <programlisting>
-struct nand_oobinfo {
- int useecc;
- int eccbytes;
- int eccpos[24];
- int oobfree[8][2];
-};
- </programlisting>
- <itemizedlist>
- <listitem><para>useecc</para><para>
- The useecc member controls the ecc and placement function. The header
- file include/mtd/mtd-abi.h contains constants to select ecc and
- placement. MTD_NANDECC_OFF switches off the ecc complete. This is
- not recommended and available for testing and diagnosis only.
- MTD_NANDECC_PLACE selects caller defined placement, MTD_NANDECC_AUTOPLACE
- selects automatic placement.
- </para></listitem>
- <listitem><para>eccbytes</para><para>
- The eccbytes member defines the number of ecc bytes per page.
- </para></listitem>
- <listitem><para>eccpos</para><para>
- The eccpos array holds the byte offsets in the spare area where
- the ecc codes are placed.
- </para></listitem>
- <listitem><para>oobfree</para><para>
- The oobfree array defines the areas in the spare area which can be
- used for automatic placement. The information is given in the format
- {offset, size}. offset defines the start of the usable area, size the
- length in bytes. More than one area can be defined. The list is terminated
- by an {0, 0} entry.
- </para></listitem>
- </itemizedlist>
- </para>
- <sect2 id="Placement_defined_by_fs_driver">
- <title>Placement defined by fs driver</title>
- <para>
- The calling function provides a pointer to a nand_oobinfo
- structure which defines the ecc placement. For writes the
- caller must provide a spare area buffer along with the
- data buffer. The spare area buffer size is (number of pages) *
- (size of spare area). For reads the buffer size is
- (number of pages) * ((size of spare area) + (number of ecc
- steps per page) * sizeof (int)). The driver stores the
- result of the ecc check for each tuple in the spare buffer.
- The storage sequence is
- </para>
- <para>
- &lt;spare data page 0&gt;&lt;ecc result 0&gt;...&lt;ecc result n&gt;
- </para>
- <para>
- ...
- </para>
- <para>
- &lt;spare data page n&gt;&lt;ecc result 0&gt;...&lt;ecc result n&gt;
- </para>
- <para>
- This is a legacy mode used by YAFFS1.
- </para>
- <para>
- If the spare area buffer is NULL then only the ECC placement is
- done according to the given scheme in the nand_oobinfo structure.
- </para>
- </sect2>
- <sect2 id="Automatic_placement">
- <title>Automatic placement</title>
- <para>
- Automatic placement uses the built in defaults to place the
- ecc bytes in the spare area. If filesystem data have to be stored /
- read into the spare area then the calling function must provide a
- buffer. The buffer size per page is determined by the oobfree array in
- the nand_oobinfo structure.
- </para>
- <para>
- If the spare area buffer is NULL then only the ECC placement is
- done according to the default builtin scheme.
- </para>
- </sect2>
- </sect1>
- <sect1 id="Spare_area_autoplacement_default">
- <title>Spare area autoplacement default schemes</title>
- <sect2 id="pagesize_256">
- <title>256 byte pagesize</title>
-<informaltable><tgroup cols="3"><tbody>
-<row>
-<entry>Offset</entry>
-<entry>Content</entry>
-<entry>Comment</entry>
-</row>
-<row>
-<entry>0x00</entry>
-<entry>ECC byte 0</entry>
-<entry>Error correction code byte 0</entry>
-</row>
-<row>
-<entry>0x01</entry>
-<entry>ECC byte 1</entry>
-<entry>Error correction code byte 1</entry>
-</row>
-<row>
-<entry>0x02</entry>
-<entry>ECC byte 2</entry>
-<entry>Error correction code byte 2</entry>
-</row>
-<row>
-<entry>0x03</entry>
-<entry>Autoplace 0</entry>
-<entry></entry>
-</row>
-<row>
-<entry>0x04</entry>
-<entry>Autoplace 1</entry>
-<entry></entry>
-</row>
-<row>
-<entry>0x05</entry>
-<entry>Bad block marker</entry>
-<entry>If any bit in this byte is zero, then this block is bad.
-This applies only to the first page in a block. In the remaining
-pages this byte is reserved</entry>
-</row>
-<row>
-<entry>0x06</entry>
-<entry>Autoplace 2</entry>
-<entry></entry>
-</row>
-<row>
-<entry>0x07</entry>
-<entry>Autoplace 3</entry>
-<entry></entry>
-</row>
-</tbody></tgroup></informaltable>
- </sect2>
- <sect2 id="pagesize_512">
- <title>512 byte pagesize</title>
-<informaltable><tgroup cols="3"><tbody>
-<row>
-<entry>Offset</entry>
-<entry>Content</entry>
-<entry>Comment</entry>
-</row>
-<row>
-<entry>0x00</entry>
-<entry>ECC byte 0</entry>
-<entry>Error correction code byte 0 of the lower 256 Byte data in
-this page</entry>
-</row>
-<row>
-<entry>0x01</entry>
-<entry>ECC byte 1</entry>
-<entry>Error correction code byte 1 of the lower 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x02</entry>
-<entry>ECC byte 2</entry>
-<entry>Error correction code byte 2 of the lower 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x03</entry>
-<entry>ECC byte 3</entry>
-<entry>Error correction code byte 0 of the upper 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x04</entry>
-<entry>reserved</entry>
-<entry>reserved</entry>
-</row>
-<row>
-<entry>0x05</entry>
-<entry>Bad block marker</entry>
-<entry>If any bit in this byte is zero, then this block is bad.
-This applies only to the first page in a block. In the remaining
-pages this byte is reserved</entry>
-</row>
-<row>
-<entry>0x06</entry>
-<entry>ECC byte 4</entry>
-<entry>Error correction code byte 1 of the upper 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x07</entry>
-<entry>ECC byte 5</entry>
-<entry>Error correction code byte 2 of the upper 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x08 - 0x0F</entry>
-<entry>Autoplace 0 - 7</entry>
-<entry></entry>
-</row>
-</tbody></tgroup></informaltable>
- </sect2>
- <sect2 id="pagesize_2048">
- <title>2048 byte pagesize</title>
-<informaltable><tgroup cols="3"><tbody>
-<row>
-<entry>Offset</entry>
-<entry>Content</entry>
-<entry>Comment</entry>
-</row>
-<row>
-<entry>0x00</entry>
-<entry>Bad block marker</entry>
-<entry>If any bit in this byte is zero, then this block is bad.
-This applies only to the first page in a block. In the remaining
-pages this byte is reserved</entry>
-</row>
-<row>
-<entry>0x01</entry>
-<entry>Reserved</entry>
-<entry>Reserved</entry>
-</row>
-<row>
-<entry>0x02-0x27</entry>
-<entry>Autoplace 0 - 37</entry>
-<entry></entry>
-</row>
-<row>
-<entry>0x28</entry>
-<entry>ECC byte 0</entry>
-<entry>Error correction code byte 0 of the first 256 Byte data in
-this page</entry>
-</row>
-<row>
-<entry>0x29</entry>
-<entry>ECC byte 1</entry>
-<entry>Error correction code byte 1 of the first 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x2A</entry>
-<entry>ECC byte 2</entry>
-<entry>Error correction code byte 2 of the first 256 Bytes data in
-this page</entry>
-</row>
-<row>
-<entry>0x2B</entry>
-<entry>ECC byte 3</entry>
-<entry>Error correction code byte 0 of the second 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x2C</entry>
-<entry>ECC byte 4</entry>
-<entry>Error correction code byte 1 of the second 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x2D</entry>
-<entry>ECC byte 5</entry>
-<entry>Error correction code byte 2 of the second 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x2E</entry>
-<entry>ECC byte 6</entry>
-<entry>Error correction code byte 0 of the third 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x2F</entry>
-<entry>ECC byte 7</entry>
-<entry>Error correction code byte 1 of the third 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x30</entry>
-<entry>ECC byte 8</entry>
-<entry>Error correction code byte 2 of the third 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x31</entry>
-<entry>ECC byte 9</entry>
-<entry>Error correction code byte 0 of the fourth 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x32</entry>
-<entry>ECC byte 10</entry>
-<entry>Error correction code byte 1 of the fourth 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x33</entry>
-<entry>ECC byte 11</entry>
-<entry>Error correction code byte 2 of the fourth 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x34</entry>
-<entry>ECC byte 12</entry>
-<entry>Error correction code byte 0 of the fifth 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x35</entry>
-<entry>ECC byte 13</entry>
-<entry>Error correction code byte 1 of the fifth 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x36</entry>
-<entry>ECC byte 14</entry>
-<entry>Error correction code byte 2 of the fifth 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x37</entry>
-<entry>ECC byte 15</entry>
-<entry>Error correction code byte 0 of the sixt 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x38</entry>
-<entry>ECC byte 16</entry>
-<entry>Error correction code byte 1 of the sixt 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x39</entry>
-<entry>ECC byte 17</entry>
-<entry>Error correction code byte 2 of the sixt 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x3A</entry>
-<entry>ECC byte 18</entry>
-<entry>Error correction code byte 0 of the seventh 256 Bytes of
-data in this page</entry>
-</row>
-<row>
-<entry>0x3B</entry>
-<entry>ECC byte 19</entry>
-<entry>Error correction code byte 1 of the seventh 256 Bytes of
-data in this page</entry>
-</row>
-<row>
-<entry>0x3C</entry>
-<entry>ECC byte 20</entry>
-<entry>Error correction code byte 2 of the seventh 256 Bytes of
-data in this page</entry>
-</row>
-<row>
-<entry>0x3D</entry>
-<entry>ECC byte 21</entry>
-<entry>Error correction code byte 0 of the eighth 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x3E</entry>
-<entry>ECC byte 22</entry>
-<entry>Error correction code byte 1 of the eighth 256 Bytes of data
-in this page</entry>
-</row>
-<row>
-<entry>0x3F</entry>
-<entry>ECC byte 23</entry>
-<entry>Error correction code byte 2 of the eighth 256 Bytes of data
-in this page</entry>
-</row>
-</tbody></tgroup></informaltable>
- </sect2>
- </sect1>
- </chapter>
-
- <chapter id="filesystems">
- <title>Filesystem support</title>
- <para>
- The NAND driver provides all necessary functions for a
- filesystem via the MTD interface.
- </para>
- <para>
- Filesystems must be aware of the NAND peculiarities and
- restrictions. One major restrictions of NAND Flash is, that you cannot
- write as often as you want to a page. The consecutive writes to a page,
- before erasing it again, are restricted to 1-3 writes, depending on the
- manufacturers specifications. This applies similar to the spare area.
- </para>
- <para>
- Therefore NAND aware filesystems must either write in page size chunks
- or hold a writebuffer to collect smaller writes until they sum up to
- pagesize. Available NAND aware filesystems: JFFS2, YAFFS.
- </para>
- <para>
- The spare area usage to store filesystem data is controlled by
- the spare area placement functionality which is described in one
- of the earlier chapters.
- </para>
- </chapter>
- <chapter id="tools">
- <title>Tools</title>
- <para>
- The MTD project provides a couple of helpful tools to handle NAND Flash.
- <itemizedlist>
- <listitem><para>flasherase, flasheraseall: Erase and format FLASH partitions</para></listitem>
- <listitem><para>nandwrite: write filesystem images to NAND FLASH</para></listitem>
- <listitem><para>nanddump: dump the contents of a NAND FLASH partitions</para></listitem>
- </itemizedlist>
- </para>
- <para>
- These tools are aware of the NAND restrictions. Please use those tools
- instead of complaining about errors which are caused by non NAND aware
- access methods.
- </para>
- </chapter>
-
- <chapter id="defines">
- <title>Constants</title>
- <para>
- This chapter describes the constants which might be relevant for a driver developer.
- </para>
- <sect1 id="Chip_option_constants">
- <title>Chip option constants</title>
- <sect2 id="Constants_for_chip_id_table">
- <title>Constants for chip id table</title>
- <para>
- These constants are defined in nand.h. They are ored together to describe
- the chip functionality.
- <programlisting>
-/* Buswitdh is 16 bit */
-#define NAND_BUSWIDTH_16 0x00000002
-/* Device supports partial programming without padding */
-#define NAND_NO_PADDING 0x00000004
-/* Chip has cache program function */
-#define NAND_CACHEPRG 0x00000008
-/* Chip has copy back function */
-#define NAND_COPYBACK 0x00000010
-/* AND Chip which has 4 banks and a confusing page / block
- * assignment. See Renesas datasheet for further information */
-#define NAND_IS_AND 0x00000020
-/* Chip has a array of 4 pages which can be read without
- * additional ready /busy waits */
-#define NAND_4PAGE_ARRAY 0x00000040
- </programlisting>
- </para>
- </sect2>
- <sect2 id="Constants_for_runtime_options">
- <title>Constants for runtime options</title>
- <para>
- These constants are defined in nand.h. They are ored together to describe
- the functionality.
- <programlisting>
-/* The hw ecc generator provides a syndrome instead a ecc value on read
- * This can only work if we have the ecc bytes directly behind the
- * data bytes. Applies for DOC and AG-AND Renesas HW Reed Solomon generators */
-#define NAND_HWECC_SYNDROME 0x00020000
- </programlisting>
- </para>
- </sect2>
- </sect1>
-
- <sect1 id="EEC_selection_constants">
- <title>ECC selection constants</title>
- <para>
- Use these constants to select the ECC algorithm.
- <programlisting>
-/* No ECC. Usage is not recommended ! */
-#define NAND_ECC_NONE 0
-/* Software ECC 3 byte ECC per 256 Byte data */
-#define NAND_ECC_SOFT 1
-/* Hardware ECC 3 byte ECC per 256 Byte data */
-#define NAND_ECC_HW3_256 2
-/* Hardware ECC 3 byte ECC per 512 Byte data */
-#define NAND_ECC_HW3_512 3
-/* Hardware ECC 6 byte ECC per 512 Byte data */
-#define NAND_ECC_HW6_512 4
-/* Hardware ECC 6 byte ECC per 512 Byte data */
-#define NAND_ECC_HW8_512 6
- </programlisting>
- </para>
- </sect1>
-
- <sect1 id="Hardware_control_related_constants">
- <title>Hardware control related constants</title>
- <para>
- These constants describe the requested hardware access function when
- the boardspecific hardware control function is called
- <programlisting>
-/* Select the chip by setting nCE to low */
-#define NAND_CTL_SETNCE 1
-/* Deselect the chip by setting nCE to high */
-#define NAND_CTL_CLRNCE 2
-/* Select the command latch by setting CLE to high */
-#define NAND_CTL_SETCLE 3
-/* Deselect the command latch by setting CLE to low */
-#define NAND_CTL_CLRCLE 4
-/* Select the address latch by setting ALE to high */
-#define NAND_CTL_SETALE 5
-/* Deselect the address latch by setting ALE to low */
-#define NAND_CTL_CLRALE 6
-/* Set write protection by setting WP to high. Not used! */
-#define NAND_CTL_SETWP 7
-/* Clear write protection by setting WP to low. Not used! */
-#define NAND_CTL_CLRWP 8
- </programlisting>
- </para>
- </sect1>
-
- <sect1 id="Bad_block_table_constants">
- <title>Bad block table related constants</title>
- <para>
- These constants describe the options used for bad block
- table descriptors.
- <programlisting>
-/* Options for the bad block table descriptors */
-
-/* The number of bits used per block in the bbt on the device */
-#define NAND_BBT_NRBITS_MSK 0x0000000F
-#define NAND_BBT_1BIT 0x00000001
-#define NAND_BBT_2BIT 0x00000002
-#define NAND_BBT_4BIT 0x00000004
-#define NAND_BBT_8BIT 0x00000008
-/* The bad block table is in the last good block of the device */
-#define NAND_BBT_LASTBLOCK 0x00000010
-/* The bbt is at the given page, else we must scan for the bbt */
-#define NAND_BBT_ABSPAGE 0x00000020
-/* bbt is stored per chip on multichip devices */
-#define NAND_BBT_PERCHIP 0x00000080
-/* bbt has a version counter at offset veroffs */
-#define NAND_BBT_VERSION 0x00000100
-/* Create a bbt if none axists */
-#define NAND_BBT_CREATE 0x00000200
-/* Write bbt if necessary */
-#define NAND_BBT_WRITE 0x00001000
-/* Read and write back block contents when writing bbt */
-#define NAND_BBT_SAVECONTENT 0x00002000
- </programlisting>
- </para>
- </sect1>
-
- </chapter>
-
- <chapter id="structs">
- <title>Structures</title>
- <para>
- This chapter contains the autogenerated documentation of the structures which are
- used in the NAND driver and might be relevant for a driver developer. Each
- struct member has a short description which is marked with an [XXX] identifier.
- See the chapter "Documentation hints" for an explanation.
- </para>
-!Iinclude/linux/mtd/nand.h
- </chapter>
-
- <chapter id="pubfunctions">
- <title>Public Functions Provided</title>
- <para>
- This chapter contains the autogenerated documentation of the NAND kernel API functions
- which are exported. Each function has a short description which is marked with an [XXX] identifier.
- See the chapter "Documentation hints" for an explanation.
- </para>
-!Edrivers/mtd/nand/nand_base.c
-!Edrivers/mtd/nand/nand_bbt.c
-!Edrivers/mtd/nand/nand_ecc.c
- </chapter>
-
- <chapter id="intfunctions">
- <title>Internal Functions Provided</title>
- <para>
- This chapter contains the autogenerated documentation of the NAND driver internal functions.
- Each function has a short description which is marked with an [XXX] identifier.
- See the chapter "Documentation hints" for an explanation.
- The functions marked with [DEFAULT] might be relevant for a board driver developer.
- </para>
-!Idrivers/mtd/nand/nand_base.c
-!Idrivers/mtd/nand/nand_bbt.c
-<!-- No internal functions for kernel-doc:
-X!Idrivers/mtd/nand/nand_ecc.c
--->
- </chapter>
-
- <chapter id="credits">
- <title>Credits</title>
- <para>
- The following people have contributed to the NAND driver:
- <orderedlist>
- <listitem><para>Steven J. Hill<email>sjhill@realitydiluted.com</email></para></listitem>
- <listitem><para>David Woodhouse<email>dwmw2@infradead.org</email></para></listitem>
- <listitem><para>Thomas Gleixner<email>tglx@linutronix.de</email></para></listitem>
- </orderedlist>
- A lot of users have provided bugfixes, improvements and helping hands for testing.
- Thanks a lot.
- </para>
- <para>
- The following people have contributed to this document:
- <orderedlist>
- <listitem><para>Thomas Gleixner<email>tglx@linutronix.de</email></para></listitem>
- </orderedlist>
- </para>
- </chapter>
-</book>
diff --git a/Documentation/DocBook/networking.tmpl b/Documentation/DocBook/networking.tmpl
deleted file mode 100644
index 29df25016c7c..000000000000
--- a/Documentation/DocBook/networking.tmpl
+++ /dev/null
@@ -1,111 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
-
-<book id="LinuxNetworking">
- <bookinfo>
- <title>Linux Networking and Network Devices APIs</title>
-
- <legalnotice>
- <para>
- This documentation is free software; you can redistribute
- it and/or modify it under the terms of the GNU General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later
- version.
- </para>
-
- <para>
- This program is distributed in the hope that it will be
- useful, but WITHOUT ANY WARRANTY; without even the implied
- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- See the GNU General Public License for more details.
- </para>
-
- <para>
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- MA 02111-1307 USA
- </para>
-
- <para>
- For more details see the file COPYING in the source
- distribution of Linux.
- </para>
- </legalnotice>
- </bookinfo>
-
-<toc></toc>
-
- <chapter id="netcore">
- <title>Linux Networking</title>
- <sect1><title>Networking Base Types</title>
-!Iinclude/linux/net.h
- </sect1>
- <sect1><title>Socket Buffer Functions</title>
-!Iinclude/linux/skbuff.h
-!Iinclude/net/sock.h
-!Enet/socket.c
-!Enet/core/skbuff.c
-!Enet/core/sock.c
-!Enet/core/datagram.c
-!Enet/core/stream.c
- </sect1>
- <sect1><title>Socket Filter</title>
-!Enet/core/filter.c
- </sect1>
- <sect1><title>Generic Network Statistics</title>
-!Iinclude/uapi/linux/gen_stats.h
-!Enet/core/gen_stats.c
-!Enet/core/gen_estimator.c
- </sect1>
- <sect1><title>SUN RPC subsystem</title>
-<!-- The !D functionality is not perfect, garbage has to be protected by comments
-!Dnet/sunrpc/sunrpc_syms.c
--->
-!Enet/sunrpc/xdr.c
-!Enet/sunrpc/svc_xprt.c
-!Enet/sunrpc/xprt.c
-!Enet/sunrpc/sched.c
-!Enet/sunrpc/socklib.c
-!Enet/sunrpc/stats.c
-!Enet/sunrpc/rpc_pipe.c
-!Enet/sunrpc/rpcb_clnt.c
-!Enet/sunrpc/clnt.c
- </sect1>
- <sect1><title>WiMAX</title>
-!Enet/wimax/op-msg.c
-!Enet/wimax/op-reset.c
-!Enet/wimax/op-rfkill.c
-!Enet/wimax/stack.c
-!Iinclude/net/wimax.h
-!Iinclude/uapi/linux/wimax.h
- </sect1>
- </chapter>
-
- <chapter id="netdev">
- <title>Network device support</title>
- <sect1><title>Driver Support</title>
-!Enet/core/dev.c
-!Enet/ethernet/eth.c
-!Enet/sched/sch_generic.c
-!Iinclude/linux/etherdevice.h
-!Iinclude/linux/netdevice.h
- </sect1>
- <sect1><title>PHY Support</title>
-!Edrivers/net/phy/phy.c
-!Idrivers/net/phy/phy.c
-!Edrivers/net/phy/phy_device.c
-!Idrivers/net/phy/phy_device.c
-!Edrivers/net/phy/mdio_bus.c
-!Idrivers/net/phy/mdio_bus.c
- </sect1>
-<!-- FIXME: Removed for now since no structured comments in source
- <sect1><title>Wireless</title>
-X!Enet/core/wireless.c
- </sect1>
--->
- </chapter>
-
-</book>
diff --git a/Documentation/DocBook/rapidio.tmpl b/Documentation/DocBook/rapidio.tmpl
deleted file mode 100644
index ac3cca3399a1..000000000000
--- a/Documentation/DocBook/rapidio.tmpl
+++ /dev/null
@@ -1,155 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" [
- <!ENTITY rapidio SYSTEM "rapidio.xml">
- ]>
-
-<book id="RapidIO-Guide">
- <bookinfo>
- <title>RapidIO Subsystem Guide</title>
-
- <authorgroup>
- <author>
- <firstname>Matt</firstname>
- <surname>Porter</surname>
- <affiliation>
- <address>
- <email>mporter@kernel.crashing.org</email>
- <email>mporter@mvista.com</email>
- </address>
- </affiliation>
- </author>
- </authorgroup>
-
- <copyright>
- <year>2005</year>
- <holder>MontaVista Software, Inc.</holder>
- </copyright>
-
- <legalnotice>
- <para>
- This documentation is free software; you can redistribute
- it and/or modify it under the terms of the GNU General Public
- License version 2 as published by the Free Software Foundation.
- </para>
-
- <para>
- This program is distributed in the hope that it will be
- useful, but WITHOUT ANY WARRANTY; without even the implied
- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- See the GNU General Public License for more details.
- </para>
-
- <para>
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- MA 02111-1307 USA
- </para>
-
- <para>
- For more details see the file COPYING in the source
- distribution of Linux.
- </para>
- </legalnotice>
- </bookinfo>
-
-<toc></toc>
-
- <chapter id="intro">
- <title>Introduction</title>
- <para>
- RapidIO is a high speed switched fabric interconnect with
- features aimed at the embedded market. RapidIO provides
- support for memory-mapped I/O as well as message-based
- transactions over the switched fabric network. RapidIO has
- a standardized discovery mechanism not unlike the PCI bus
- standard that allows simple detection of devices in a
- network.
- </para>
- <para>
- This documentation is provided for developers intending
- to support RapidIO on new architectures, write new drivers,
- or to understand the subsystem internals.
- </para>
- </chapter>
-
- <chapter id="bugs">
- <title>Known Bugs and Limitations</title>
-
- <sect1 id="known_bugs">
- <title>Bugs</title>
- <para>None. ;)</para>
- </sect1>
- <sect1 id="Limitations">
- <title>Limitations</title>
- <para>
- <orderedlist>
- <listitem><para>Access/management of RapidIO memory regions is not supported</para></listitem>
- <listitem><para>Multiple host enumeration is not supported</para></listitem>
- </orderedlist>
- </para>
- </sect1>
- </chapter>
-
- <chapter id="drivers">
- <title>RapidIO driver interface</title>
- <para>
- Drivers are provided a set of calls in order
- to interface with the subsystem to gather info
- on devices, request/map memory region resources,
- and manage mailboxes/doorbells.
- </para>
- <sect1 id="Functions">
- <title>Functions</title>
-!Iinclude/linux/rio_drv.h
-!Edrivers/rapidio/rio-driver.c
-!Edrivers/rapidio/rio.c
- </sect1>
- </chapter>
-
- <chapter id="internals">
- <title>Internals</title>
-
- <para>
- This chapter contains the autogenerated documentation of the RapidIO
- subsystem.
- </para>
-
- <sect1 id="Structures"><title>Structures</title>
-!Iinclude/linux/rio.h
- </sect1>
- <sect1 id="Enumeration_and_Discovery"><title>Enumeration and Discovery</title>
-!Idrivers/rapidio/rio-scan.c
- </sect1>
- <sect1 id="Driver_functionality"><title>Driver functionality</title>
-!Idrivers/rapidio/rio.c
-!Idrivers/rapidio/rio-access.c
- </sect1>
- <sect1 id="Device_model_support"><title>Device model support</title>
-!Idrivers/rapidio/rio-driver.c
- </sect1>
- <sect1 id="PPC32_support"><title>PPC32 support</title>
-!Iarch/powerpc/sysdev/fsl_rio.c
- </sect1>
- </chapter>
-
- <chapter id="credits">
- <title>Credits</title>
- <para>
- The following people have contributed to the RapidIO
- subsystem directly or indirectly:
- <orderedlist>
- <listitem><para>Matt Porter<email>mporter@kernel.crashing.org</email></para></listitem>
- <listitem><para>Randy Vinson<email>rvinson@mvista.com</email></para></listitem>
- <listitem><para>Dan Malek<email>dan@embeddedalley.com</email></para></listitem>
- </orderedlist>
- </para>
- <para>
- The following people have contributed to this document:
- <orderedlist>
- <listitem><para>Matt Porter<email>mporter@kernel.crashing.org</email></para></listitem>
- </orderedlist>
- </para>
- </chapter>
-</book>
diff --git a/Documentation/DocBook/s390-drivers.tmpl b/Documentation/DocBook/s390-drivers.tmpl
deleted file mode 100644
index 95bfc12e5439..000000000000
--- a/Documentation/DocBook/s390-drivers.tmpl
+++ /dev/null
@@ -1,161 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
-
-<book id="s390drivers">
- <bookinfo>
- <title>Writing s390 channel device drivers</title>
-
- <authorgroup>
- <author>
- <firstname>Cornelia</firstname>
- <surname>Huck</surname>
- <affiliation>
- <address>
- <email>cornelia.huck@de.ibm.com</email>
- </address>
- </affiliation>
- </author>
- </authorgroup>
-
- <copyright>
- <year>2007</year>
- <holder>IBM Corp.</holder>
- </copyright>
-
- <legalnotice>
- <para>
- This documentation is free software; you can redistribute
- it and/or modify it under the terms of the GNU General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later
- version.
- </para>
-
- <para>
- This program is distributed in the hope that it will be
- useful, but WITHOUT ANY WARRANTY; without even the implied
- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- See the GNU General Public License for more details.
- </para>
-
- <para>
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- MA 02111-1307 USA
- </para>
-
- <para>
- For more details see the file COPYING in the source
- distribution of Linux.
- </para>
- </legalnotice>
- </bookinfo>
-
-<toc></toc>
-
- <chapter id="intro">
- <title>Introduction</title>
- <para>
- This document describes the interfaces available for device drivers that
- drive s390 based channel attached I/O devices. This includes interfaces for
- interaction with the hardware and interfaces for interacting with the
- common driver core. Those interfaces are provided by the s390 common I/O
- layer.
- </para>
- <para>
- The document assumes a familarity with the technical terms associated
- with the s390 channel I/O architecture. For a description of this
- architecture, please refer to the "z/Architecture: Principles of
- Operation", IBM publication no. SA22-7832.
- </para>
- <para>
- While most I/O devices on a s390 system are typically driven through the
- channel I/O mechanism described here, there are various other methods
- (like the diag interface). These are out of the scope of this document.
- </para>
- <para>
- Some additional information can also be found in the kernel source
- under Documentation/s390/driver-model.txt.
- </para>
- </chapter>
- <chapter id="ccw">
- <title>The ccw bus</title>
- <para>
- The ccw bus typically contains the majority of devices available to
- a s390 system. Named after the channel command word (ccw), the basic
- command structure used to address its devices, the ccw bus contains
- so-called channel attached devices. They are addressed via I/O
- subchannels, visible on the css bus. A device driver for
- channel-attached devices, however, will never interact with the
- subchannel directly, but only via the I/O device on the ccw bus,
- the ccw device.
- </para>
- <sect1 id="channelIO">
- <title>I/O functions for channel-attached devices</title>
- <para>
- Some hardware structures have been translated into C structures for use
- by the common I/O layer and device drivers. For more information on
- the hardware structures represented here, please consult the Principles
- of Operation.
- </para>
-!Iarch/s390/include/asm/cio.h
- </sect1>
- <sect1 id="ccwdev">
- <title>ccw devices</title>
- <para>
- Devices that want to initiate channel I/O need to attach to the ccw bus.
- Interaction with the driver core is done via the common I/O layer, which
- provides the abstractions of ccw devices and ccw device drivers.
- </para>
- <para>
- The functions that initiate or terminate channel I/O all act upon a
- ccw device structure. Device drivers must not bypass those functions
- or strange side effects may happen.
- </para>
-!Iarch/s390/include/asm/ccwdev.h
-!Edrivers/s390/cio/device.c
-!Edrivers/s390/cio/device_ops.c
- </sect1>
- <sect1 id="cmf">
- <title>The channel-measurement facility</title>
- <para>
- The channel-measurement facility provides a means to collect
- measurement data which is made available by the channel subsystem
- for each channel attached device.
- </para>
-!Iarch/s390/include/asm/cmb.h
-!Edrivers/s390/cio/cmf.c
- </sect1>
- </chapter>
-
- <chapter id="ccwgroup">
- <title>The ccwgroup bus</title>
- <para>
- The ccwgroup bus only contains artificial devices, created by the user.
- Many networking devices (e.g. qeth) are in fact composed of several
- ccw devices (like read, write and data channel for qeth). The
- ccwgroup bus provides a mechanism to create a meta-device which
- contains those ccw devices as slave devices and can be associated
- with the netdevice.
- </para>
- <sect1 id="ccwgroupdevices">
- <title>ccw group devices</title>
-!Iarch/s390/include/asm/ccwgroup.h
-!Edrivers/s390/cio/ccwgroup.c
- </sect1>
- </chapter>
-
- <chapter id="genericinterfaces">
- <title>Generic interfaces</title>
- <para>
- Some interfaces are available to other drivers that do not necessarily
- have anything to do with the busses described above, but still are
- indirectly using basic infrastructure in the common I/O layer.
- One example is the support for adapter interrupts.
- </para>
-!Edrivers/s390/cio/airq.c
- </chapter>
-
-</book>
diff --git a/Documentation/DocBook/scsi.tmpl b/Documentation/DocBook/scsi.tmpl
deleted file mode 100644
index 4b9b9b286cea..000000000000
--- a/Documentation/DocBook/scsi.tmpl
+++ /dev/null
@@ -1,409 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
-
-<book id="scsimid">
- <bookinfo>
- <title>SCSI Interfaces Guide</title>
-
- <authorgroup>
- <author>
- <firstname>James</firstname>
- <surname>Bottomley</surname>
- <affiliation>
- <address>
- <email>James.Bottomley@hansenpartnership.com</email>
- </address>
- </affiliation>
- </author>
-
- <author>
- <firstname>Rob</firstname>
- <surname>Landley</surname>
- <affiliation>
- <address>
- <email>rob@landley.net</email>
- </address>
- </affiliation>
- </author>
-
- </authorgroup>
-
- <copyright>
- <year>2007</year>
- <holder>Linux Foundation</holder>
- </copyright>
-
- <legalnotice>
- <para>
- This documentation is free software; you can redistribute
- it and/or modify it under the terms of the GNU General Public
- License version 2.
- </para>
-
- <para>
- This program is distributed in the hope that it will be
- useful, but WITHOUT ANY WARRANTY; without even the implied
- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- For more details see the file COPYING in the source
- distribution of Linux.
- </para>
- </legalnotice>
- </bookinfo>
-
- <toc></toc>
-
- <chapter id="intro">
- <title>Introduction</title>
- <sect1 id="protocol_vs_bus">
- <title>Protocol vs bus</title>
- <para>
- Once upon a time, the Small Computer Systems Interface defined both
- a parallel I/O bus and a data protocol to connect a wide variety of
- peripherals (disk drives, tape drives, modems, printers, scanners,
- optical drives, test equipment, and medical devices) to a host
- computer.
- </para>
- <para>
- Although the old parallel (fast/wide/ultra) SCSI bus has largely
- fallen out of use, the SCSI command set is more widely used than ever
- to communicate with devices over a number of different busses.
- </para>
- <para>
- The <ulink url='http://www.t10.org/scsi-3.htm'>SCSI protocol</ulink>
- is a big-endian peer-to-peer packet based protocol. SCSI commands
- are 6, 10, 12, or 16 bytes long, often followed by an associated data
- payload.
- </para>
- <para>
- SCSI commands can be transported over just about any kind of bus, and
- are the default protocol for storage devices attached to USB, SATA,
- SAS, Fibre Channel, FireWire, and ATAPI devices. SCSI packets are
- also commonly exchanged over Infiniband,
- <ulink url='http://i2o.shadowconnect.com/faq.php'>I20</ulink>, TCP/IP
- (<ulink url='https://en.wikipedia.org/wiki/ISCSI'>iSCSI</ulink>), even
- <ulink url='http://cyberelk.net/tim/parport/parscsi.html'>Parallel
- ports</ulink>.
- </para>
- </sect1>
- <sect1 id="subsystem_design">
- <title>Design of the Linux SCSI subsystem</title>
- <para>
- The SCSI subsystem uses a three layer design, with upper, mid, and low
- layers. Every operation involving the SCSI subsystem (such as reading
- a sector from a disk) uses one driver at each of the 3 levels: one
- upper layer driver, one lower layer driver, and the SCSI midlayer.
- </para>
- <para>
- The SCSI upper layer provides the interface between userspace and the
- kernel, in the form of block and char device nodes for I/O and
- ioctl(). The SCSI lower layer contains drivers for specific hardware
- devices.
- </para>
- <para>
- In between is the SCSI mid-layer, analogous to a network routing
- layer such as the IPv4 stack. The SCSI mid-layer routes a packet
- based data protocol between the upper layer's /dev nodes and the
- corresponding devices in the lower layer. It manages command queues,
- provides error handling and power management functions, and responds
- to ioctl() requests.
- </para>
- </sect1>
- </chapter>
-
- <chapter id="upper_layer">
- <title>SCSI upper layer</title>
- <para>
- The upper layer supports the user-kernel interface by providing
- device nodes.
- </para>
- <sect1 id="sd">
- <title>sd (SCSI Disk)</title>
- <para>sd (sd_mod.o)</para>
-<!-- !Idrivers/scsi/sd.c -->
- </sect1>
- <sect1 id="sr">
- <title>sr (SCSI CD-ROM)</title>
- <para>sr (sr_mod.o)</para>
- </sect1>
- <sect1 id="st">
- <title>st (SCSI Tape)</title>
- <para>st (st.o)</para>
- </sect1>
- <sect1 id="sg">
- <title>sg (SCSI Generic)</title>
- <para>sg (sg.o)</para>
- </sect1>
- <sect1 id="ch">
- <title>ch (SCSI Media Changer)</title>
- <para>ch (ch.c)</para>
- </sect1>
- </chapter>
-
- <chapter id="mid_layer">
- <title>SCSI mid layer</title>
-
- <sect1 id="midlayer_implementation">
- <title>SCSI midlayer implementation</title>
- <sect2 id="scsi_device.h">
- <title>include/scsi/scsi_device.h</title>
- <para>
- </para>
-!Iinclude/scsi/scsi_device.h
- </sect2>
-
- <sect2 id="scsi.c">
- <title>drivers/scsi/scsi.c</title>
- <para>Main file for the SCSI midlayer.</para>
-!Edrivers/scsi/scsi.c
- </sect2>
- <sect2 id="scsicam.c">
- <title>drivers/scsi/scsicam.c</title>
- <para>
- <ulink url='http://www.t10.org/ftp/t10/drafts/cam/cam-r12b.pdf'>SCSI
- Common Access Method</ulink> support functions, for use with
- HDIO_GETGEO, etc.
- </para>
-!Edrivers/scsi/scsicam.c
- </sect2>
- <sect2 id="scsi_error.c">
- <title>drivers/scsi/scsi_error.c</title>
- <para>Common SCSI error/timeout handling routines.</para>
-!Edrivers/scsi/scsi_error.c
- </sect2>
- <sect2 id="scsi_devinfo.c">
- <title>drivers/scsi/scsi_devinfo.c</title>
- <para>
- Manage scsi_dev_info_list, which tracks blacklisted and whitelisted
- devices.
- </para>
-!Idrivers/scsi/scsi_devinfo.c
- </sect2>
- <sect2 id="scsi_ioctl.c">
- <title>drivers/scsi/scsi_ioctl.c</title>
- <para>
- Handle ioctl() calls for SCSI devices.
- </para>
-!Edrivers/scsi/scsi_ioctl.c
- </sect2>
- <sect2 id="scsi_lib.c">
- <title>drivers/scsi/scsi_lib.c</title>
- <para>
- SCSI queuing library.
- </para>
-!Edrivers/scsi/scsi_lib.c
- </sect2>
- <sect2 id="scsi_lib_dma.c">
- <title>drivers/scsi/scsi_lib_dma.c</title>
- <para>
- SCSI library functions depending on DMA
- (map and unmap scatter-gather lists).
- </para>
-!Edrivers/scsi/scsi_lib_dma.c
- </sect2>
- <sect2 id="scsi_module.c">
- <title>drivers/scsi/scsi_module.c</title>
- <para>
- The file drivers/scsi/scsi_module.c contains legacy support for
- old-style host templates. It should never be used by any new driver.
- </para>
- </sect2>
- <sect2 id="scsi_proc.c">
- <title>drivers/scsi/scsi_proc.c</title>
- <para>
- The functions in this file provide an interface between
- the PROC file system and the SCSI device drivers
- It is mainly used for debugging, statistics and to pass
- information directly to the lowlevel driver.
-
- I.E. plumbing to manage /proc/scsi/*
- </para>
-!Idrivers/scsi/scsi_proc.c
- </sect2>
- <sect2 id="scsi_netlink.c">
- <title>drivers/scsi/scsi_netlink.c</title>
- <para>
- Infrastructure to provide async events from transports to userspace
- via netlink, using a single NETLINK_SCSITRANSPORT protocol for all
- transports.
-
- See <ulink url='http://marc.info/?l=linux-scsi&amp;m=115507374832500&amp;w=2'>the
- original patch submission</ulink> for more details.
- </para>
-!Idrivers/scsi/scsi_netlink.c
- </sect2>
- <sect2 id="scsi_scan.c">
- <title>drivers/scsi/scsi_scan.c</title>
- <para>
- Scan a host to determine which (if any) devices are attached.
-
- The general scanning/probing algorithm is as follows, exceptions are
- made to it depending on device specific flags, compilation options,
- and global variable (boot or module load time) settings.
-
- A specific LUN is scanned via an INQUIRY command; if the LUN has a
- device attached, a scsi_device is allocated and setup for it.
-
- For every id of every channel on the given host, start by scanning
- LUN 0. Skip hosts that don't respond at all to a scan of LUN 0.
- Otherwise, if LUN 0 has a device attached, allocate and setup a
- scsi_device for it. If target is SCSI-3 or up, issue a REPORT LUN,
- and scan all of the LUNs returned by the REPORT LUN; else,
- sequentially scan LUNs up until some maximum is reached, or a LUN is
- seen that cannot have a device attached to it.
- </para>
-!Idrivers/scsi/scsi_scan.c
- </sect2>
- <sect2 id="scsi_sysctl.c">
- <title>drivers/scsi/scsi_sysctl.c</title>
- <para>
- Set up the sysctl entry: "/dev/scsi/logging_level"
- (DEV_SCSI_LOGGING_LEVEL) which sets/returns scsi_logging_level.
- </para>
- </sect2>
- <sect2 id="scsi_sysfs.c">
- <title>drivers/scsi/scsi_sysfs.c</title>
- <para>
- SCSI sysfs interface routines.
- </para>
-!Edrivers/scsi/scsi_sysfs.c
- </sect2>
- <sect2 id="hosts.c">
- <title>drivers/scsi/hosts.c</title>
- <para>
- mid to lowlevel SCSI driver interface
- </para>
-!Edrivers/scsi/hosts.c
- </sect2>
- <sect2 id="constants.c">
- <title>drivers/scsi/constants.c</title>
- <para>
- mid to lowlevel SCSI driver interface
- </para>
-!Edrivers/scsi/constants.c
- </sect2>
- </sect1>
-
- <sect1 id="Transport_classes">
- <title>Transport classes</title>
- <para>
- Transport classes are service libraries for drivers in the SCSI
- lower layer, which expose transport attributes in sysfs.
- </para>
- <sect2 id="Fibre_Channel_transport">
- <title>Fibre Channel transport</title>
- <para>
- The file drivers/scsi/scsi_transport_fc.c defines transport attributes
- for Fibre Channel.
- </para>
-!Edrivers/scsi/scsi_transport_fc.c
- </sect2>
- <sect2 id="iSCSI_transport">
- <title>iSCSI transport class</title>
- <para>
- The file drivers/scsi/scsi_transport_iscsi.c defines transport
- attributes for the iSCSI class, which sends SCSI packets over TCP/IP
- connections.
- </para>
-!Edrivers/scsi/scsi_transport_iscsi.c
- </sect2>
- <sect2 id="SAS_transport">
- <title>Serial Attached SCSI (SAS) transport class</title>
- <para>
- The file drivers/scsi/scsi_transport_sas.c defines transport
- attributes for Serial Attached SCSI, a variant of SATA aimed at
- large high-end systems.
- </para>
- <para>
- The SAS transport class contains common code to deal with SAS HBAs,
- an aproximated representation of SAS topologies in the driver model,
- and various sysfs attributes to expose these topologies and management
- interfaces to userspace.
- </para>
- <para>
- In addition to the basic SCSI core objects this transport class
- introduces two additional intermediate objects: The SAS PHY
- as represented by struct sas_phy defines an "outgoing" PHY on
- a SAS HBA or Expander, and the SAS remote PHY represented by
- struct sas_rphy defines an "incoming" PHY on a SAS Expander or
- end device. Note that this is purely a software concept, the
- underlying hardware for a PHY and a remote PHY is the exactly
- the same.
- </para>
- <para>
- There is no concept of a SAS port in this code, users can see
- what PHYs form a wide port based on the port_identifier attribute,
- which is the same for all PHYs in a port.
- </para>
-!Edrivers/scsi/scsi_transport_sas.c
- </sect2>
- <sect2 id="SATA_transport">
- <title>SATA transport class</title>
- <para>
- The SATA transport is handled by libata, which has its own book of
- documentation in this directory.
- </para>
- </sect2>
- <sect2 id="SPI_transport">
- <title>Parallel SCSI (SPI) transport class</title>
- <para>
- The file drivers/scsi/scsi_transport_spi.c defines transport
- attributes for traditional (fast/wide/ultra) SCSI busses.
- </para>
-!Edrivers/scsi/scsi_transport_spi.c
- </sect2>
- <sect2 id="SRP_transport">
- <title>SCSI RDMA (SRP) transport class</title>
- <para>
- The file drivers/scsi/scsi_transport_srp.c defines transport
- attributes for SCSI over Remote Direct Memory Access.
- </para>
-!Edrivers/scsi/scsi_transport_srp.c
- </sect2>
- </sect1>
-
- </chapter>
-
- <chapter id="lower_layer">
- <title>SCSI lower layer</title>
- <sect1 id="hba_drivers">
- <title>Host Bus Adapter transport types</title>
- <para>
- Many modern device controllers use the SCSI command set as a protocol to
- communicate with their devices through many different types of physical
- connections.
- </para>
- <para>
- In SCSI language a bus capable of carrying SCSI commands is
- called a "transport", and a controller connecting to such a bus is
- called a "host bus adapter" (HBA).
- </para>
- <sect2 id="scsi_debug.c">
- <title>Debug transport</title>
- <para>
- The file drivers/scsi/scsi_debug.c simulates a host adapter with a
- variable number of disks (or disk like devices) attached, sharing a
- common amount of RAM. Does a lot of checking to make sure that we are
- not getting blocks mixed up, and panics the kernel if anything out of
- the ordinary is seen.
- </para>
- <para>
- To be more realistic, the simulated devices have the transport
- attributes of SAS disks.
- </para>
- <para>
- For documentation see
- <ulink url='http://sg.danny.cz/sg/sdebug26.html'>http://sg.danny.cz/sg/sdebug26.html</ulink>
- </para>
-<!-- !Edrivers/scsi/scsi_debug.c -->
- </sect2>
- <sect2 id="todo">
- <title>todo</title>
- <para>Parallel (fast/wide/ultra) SCSI, USB, SATA,
- SAS, Fibre Channel, FireWire, ATAPI devices, Infiniband,
- I20, iSCSI, Parallel ports, netlink...
- </para>
- </sect2>
- </sect1>
- </chapter>
-</book>
diff --git a/Documentation/DocBook/sh.tmpl b/Documentation/DocBook/sh.tmpl
deleted file mode 100644
index 4a38f604fa66..000000000000
--- a/Documentation/DocBook/sh.tmpl
+++ /dev/null
@@ -1,105 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
-
-<book id="sh-drivers">
- <bookinfo>
- <title>SuperH Interfaces Guide</title>
-
- <authorgroup>
- <author>
- <firstname>Paul</firstname>
- <surname>Mundt</surname>
- <affiliation>
- <address>
- <email>lethal@linux-sh.org</email>
- </address>
- </affiliation>
- </author>
- </authorgroup>
-
- <copyright>
- <year>2008-2010</year>
- <holder>Paul Mundt</holder>
- </copyright>
- <copyright>
- <year>2008-2010</year>
- <holder>Renesas Technology Corp.</holder>
- </copyright>
- <copyright>
- <year>2010</year>
- <holder>Renesas Electronics Corp.</holder>
- </copyright>
-
- <legalnotice>
- <para>
- This documentation is free software; you can redistribute
- it and/or modify it under the terms of the GNU General Public
- License version 2 as published by the Free Software Foundation.
- </para>
-
- <para>
- This program is distributed in the hope that it will be
- useful, but WITHOUT ANY WARRANTY; without even the implied
- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- See the GNU General Public License for more details.
- </para>
-
- <para>
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- MA 02111-1307 USA
- </para>
-
- <para>
- For more details see the file COPYING in the source
- distribution of Linux.
- </para>
- </legalnotice>
- </bookinfo>
-
-<toc></toc>
-
- <chapter id="mm">
- <title>Memory Management</title>
- <sect1 id="sh4">
- <title>SH-4</title>
- <sect2 id="sq">
- <title>Store Queue API</title>
-!Earch/sh/kernel/cpu/sh4/sq.c
- </sect2>
- </sect1>
- <sect1 id="sh5">
- <title>SH-5</title>
- <sect2 id="tlb">
- <title>TLB Interfaces</title>
-!Iarch/sh/mm/tlb-sh5.c
-!Iarch/sh/include/asm/tlb_64.h
- </sect2>
- </sect1>
- </chapter>
- <chapter id="mach">
- <title>Machine Specific Interfaces</title>
- <sect1 id="dreamcast">
- <title>mach-dreamcast</title>
-!Iarch/sh/boards/mach-dreamcast/rtc.c
- </sect1>
- <sect1 id="x3proto">
- <title>mach-x3proto</title>
-!Earch/sh/boards/mach-x3proto/ilsel.c
- </sect1>
- </chapter>
- <chapter id="busses">
- <title>Busses</title>
- <sect1 id="superhyway">
- <title>SuperHyway</title>
-!Edrivers/sh/superhyway/superhyway.c
- </sect1>
-
- <sect1 id="maple">
- <title>Maple</title>
-!Edrivers/sh/maple/maple.c
- </sect1>
- </chapter>
-</book>
diff --git a/Documentation/DocBook/stylesheet.xsl b/Documentation/DocBook/stylesheet.xsl
deleted file mode 100644
index 3bf4ecf3d760..000000000000
--- a/Documentation/DocBook/stylesheet.xsl
+++ /dev/null
@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<stylesheet xmlns="http://www.w3.org/1999/XSL/Transform" version="1.0">
-<param name="chunk.quietly">1</param>
-<param name="funcsynopsis.style">ansi</param>
-<param name="funcsynopsis.tabular.threshold">80</param>
-<param name="callout.graphics">0</param>
-<!-- <param name="paper.type">A4</param> -->
-<param name="generate.consistent.ids">1</param>
-<param name="generate.section.toc.level">2</param>
-<param name="use.id.as.filename">1</param>
-</stylesheet>
diff --git a/Documentation/DocBook/w1.tmpl b/Documentation/DocBook/w1.tmpl
deleted file mode 100644
index b0228d4c81bb..000000000000
--- a/Documentation/DocBook/w1.tmpl
+++ /dev/null
@@ -1,101 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
-
-<book id="w1id">
- <bookinfo>
- <title>W1: Dallas' 1-wire bus</title>
-
- <authorgroup>
- <author>
- <firstname>David</firstname>
- <surname>Fries</surname>
- <affiliation>
- <address>
- <email>David@Fries.net</email>
- </address>
- </affiliation>
- </author>
-
- </authorgroup>
-
- <copyright>
- <year>2013</year>
- <!--
- <holder></holder>
- -->
- </copyright>
-
- <legalnotice>
- <para>
- This documentation is free software; you can redistribute
- it and/or modify it under the terms of the GNU General Public
- License version 2.
- </para>
-
- <para>
- This program is distributed in the hope that it will be
- useful, but WITHOUT ANY WARRANTY; without even the implied
- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- For more details see the file COPYING in the source
- distribution of Linux.
- </para>
- </legalnotice>
- </bookinfo>
-
- <toc></toc>
-
- <chapter id="w1_internal">
- <title>W1 API internal to the kernel</title>
-
- <sect1 id="w1_internal_api">
- <title>W1 API internal to the kernel</title>
- <sect2 id="w1.h">
- <title>drivers/w1/w1.h</title>
- <para>W1 core functions.</para>
-!Idrivers/w1/w1.h
- </sect2>
-
- <sect2 id="w1.c">
- <title>drivers/w1/w1.c</title>
- <para>W1 core functions.</para>
-!Idrivers/w1/w1.c
- </sect2>
-
- <sect2 id="w1_family.h">
- <title>drivers/w1/w1_family.h</title>
- <para>Allows registering device family operations.</para>
-!Idrivers/w1/w1_family.h
- </sect2>
-
- <sect2 id="w1_family.c">
- <title>drivers/w1/w1_family.c</title>
- <para>Allows registering device family operations.</para>
-!Edrivers/w1/w1_family.c
- </sect2>
-
- <sect2 id="w1_int.c">
- <title>drivers/w1/w1_int.c</title>
- <para>W1 internal initialization for master devices.</para>
-!Edrivers/w1/w1_int.c
- </sect2>
-
- <sect2 id="w1_netlink.h">
- <title>drivers/w1/w1_netlink.h</title>
- <para>W1 external netlink API structures and commands.</para>
-!Idrivers/w1/w1_netlink.h
- </sect2>
-
- <sect2 id="w1_io.c">
- <title>drivers/w1/w1_io.c</title>
- <para>W1 input/output.</para>
-!Edrivers/w1/w1_io.c
-!Idrivers/w1/w1_io.c
- </sect2>
-
- </sect1>
-
-
- </chapter>
-
-</book>
diff --git a/Documentation/DocBook/z8530book.tmpl b/Documentation/DocBook/z8530book.tmpl
deleted file mode 100644
index 6f3883be877e..000000000000
--- a/Documentation/DocBook/z8530book.tmpl
+++ /dev/null
@@ -1,371 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
-
-<book id="Z85230Guide">
- <bookinfo>
- <title>Z8530 Programming Guide</title>
-
- <authorgroup>
- <author>
- <firstname>Alan</firstname>
- <surname>Cox</surname>
- <affiliation>
- <address>
- <email>alan@lxorguk.ukuu.org.uk</email>
- </address>
- </affiliation>
- </author>
- </authorgroup>
-
- <copyright>
- <year>2000</year>
- <holder>Alan Cox</holder>
- </copyright>
-
- <legalnotice>
- <para>
- This documentation is free software; you can redistribute
- it and/or modify it under the terms of the GNU General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later
- version.
- </para>
-
- <para>
- This program is distributed in the hope that it will be
- useful, but WITHOUT ANY WARRANTY; without even the implied
- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- See the GNU General Public License for more details.
- </para>
-
- <para>
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- MA 02111-1307 USA
- </para>
-
- <para>
- For more details see the file COPYING in the source
- distribution of Linux.
- </para>
- </legalnotice>
- </bookinfo>
-
-<toc></toc>
-
- <chapter id="intro">
- <title>Introduction</title>
- <para>
- The Z85x30 family synchronous/asynchronous controller chips are
- used on a large number of cheap network interface cards. The
- kernel provides a core interface layer that is designed to make
- it easy to provide WAN services using this chip.
- </para>
- <para>
- The current driver only support synchronous operation. Merging the
- asynchronous driver support into this code to allow any Z85x30
- device to be used as both a tty interface and as a synchronous
- controller is a project for Linux post the 2.4 release
- </para>
- </chapter>
-
- <chapter id="Driver_Modes">
- <title>Driver Modes</title>
- <para>
- The Z85230 driver layer can drive Z8530, Z85C30 and Z85230 devices
- in three different modes. Each mode can be applied to an individual
- channel on the chip (each chip has two channels).
- </para>
- <para>
- The PIO synchronous mode supports the most common Z8530 wiring. Here
- the chip is interface to the I/O and interrupt facilities of the
- host machine but not to the DMA subsystem. When running PIO the
- Z8530 has extremely tight timing requirements. Doing high speeds,
- even with a Z85230 will be tricky. Typically you should expect to
- achieve at best 9600 baud with a Z8C530 and 64Kbits with a Z85230.
- </para>
- <para>
- The DMA mode supports the chip when it is configured to use dual DMA
- channels on an ISA bus. The better cards tend to support this mode
- of operation for a single channel. With DMA running the Z85230 tops
- out when it starts to hit ISA DMA constraints at about 512Kbits. It
- is worth noting here that many PC machines hang or crash when the
- chip is driven fast enough to hold the ISA bus solid.
- </para>
- <para>
- Transmit DMA mode uses a single DMA channel. The DMA channel is used
- for transmission as the transmit FIFO is smaller than the receive
- FIFO. it gives better performance than pure PIO mode but is nowhere
- near as ideal as pure DMA mode.
- </para>
- </chapter>
-
- <chapter id="Using_the_Z85230_driver">
- <title>Using the Z85230 driver</title>
- <para>
- The Z85230 driver provides the back end interface to your board. To
- configure a Z8530 interface you need to detect the board and to
- identify its ports and interrupt resources. It is also your problem
- to verify the resources are available.
- </para>
- <para>
- Having identified the chip you need to fill in a struct z8530_dev,
- which describes each chip. This object must exist until you finally
- shutdown the board. Firstly zero the active field. This ensures
- nothing goes off without you intending it. The irq field should
- be set to the interrupt number of the chip. (Each chip has a single
- interrupt source rather than each channel). You are responsible
- for allocating the interrupt line. The interrupt handler should be
- set to <function>z8530_interrupt</function>. The device id should
- be set to the z8530_dev structure pointer. Whether the interrupt can
- be shared or not is board dependent, and up to you to initialise.
- </para>
- <para>
- The structure holds two channel structures.
- Initialise chanA.ctrlio and chanA.dataio with the address of the
- control and data ports. You can or this with Z8530_PORT_SLEEP to
- indicate your interface needs the 5uS delay for chip settling done
- in software. The PORT_SLEEP option is architecture specific. Other
- flags may become available on future platforms, eg for MMIO.
- Initialise the chanA.irqs to &amp;z8530_nop to start the chip up
- as disabled and discarding interrupt events. This ensures that
- stray interrupts will be mopped up and not hang the bus. Set
- chanA.dev to point to the device structure itself. The
- private and name field you may use as you wish. The private field
- is unused by the Z85230 layer. The name is used for error reporting
- and it may thus make sense to make it match the network name.
- </para>
- <para>
- Repeat the same operation with the B channel if your chip has
- both channels wired to something useful. This isn't always the
- case. If it is not wired then the I/O values do not matter, but
- you must initialise chanB.dev.
- </para>
- <para>
- If your board has DMA facilities then initialise the txdma and
- rxdma fields for the relevant channels. You must also allocate the
- ISA DMA channels and do any necessary board level initialisation
- to configure them. The low level driver will do the Z8530 and
- DMA controller programming but not board specific magic.
- </para>
- <para>
- Having initialised the device you can then call
- <function>z8530_init</function>. This will probe the chip and
- reset it into a known state. An identification sequence is then
- run to identify the chip type. If the checks fail to pass the
- function returns a non zero error code. Typically this indicates
- that the port given is not valid. After this call the
- type field of the z8530_dev structure is initialised to either
- Z8530, Z85C30 or Z85230 according to the chip found.
- </para>
- <para>
- Once you have called z8530_init you can also make use of the utility
- function <function>z8530_describe</function>. This provides a
- consistent reporting format for the Z8530 devices, and allows all
- the drivers to provide consistent reporting.
- </para>
- </chapter>
-
- <chapter id="Attaching_Network_Interfaces">
- <title>Attaching Network Interfaces</title>
- <para>
- If you wish to use the network interface facilities of the driver,
- then you need to attach a network device to each channel that is
- present and in use. In addition to use the generic HDLC
- you need to follow some additional plumbing rules. They may seem
- complex but a look at the example hostess_sv11 driver should
- reassure you.
- </para>
- <para>
- The network device used for each channel should be pointed to by
- the netdevice field of each channel. The hdlc-&gt; priv field of the
- network device points to your private data - you will need to be
- able to find your private data from this.
- </para>
- <para>
- The way most drivers approach this particular problem is to
- create a structure holding the Z8530 device definition and
- put that into the private field of the network device. The
- network device fields of the channels then point back to the
- network devices.
- </para>
- <para>
- If you wish to use the generic HDLC then you need to register
- the HDLC device.
- </para>
- <para>
- Before you register your network device you will also need to
- provide suitable handlers for most of the network device callbacks.
- See the network device documentation for more details on this.
- </para>
- </chapter>
-
- <chapter id="Configuring_And_Activating_The_Port">
- <title>Configuring And Activating The Port</title>
- <para>
- The Z85230 driver provides helper functions and tables to load the
- port registers on the Z8530 chips. When programming the register
- settings for a channel be aware that the documentation recommends
- initialisation orders. Strange things happen when these are not
- followed.
- </para>
- <para>
- <function>z8530_channel_load</function> takes an array of
- pairs of initialisation values in an array of u8 type. The first
- value is the Z8530 register number. Add 16 to indicate the alternate
- register bank on the later chips. The array is terminated by a 255.
- </para>
- <para>
- The driver provides a pair of public tables. The
- z8530_hdlc_kilostream table is for the UK 'Kilostream' service and
- also happens to cover most other end host configurations. The
- z8530_hdlc_kilostream_85230 table is the same configuration using
- the enhancements of the 85230 chip. The configuration loaded is
- standard NRZ encoded synchronous data with HDLC bitstuffing. All
- of the timing is taken from the other end of the link.
- </para>
- <para>
- When writing your own tables be aware that the driver internally
- tracks register values. It may need to reload values. You should
- therefore be sure to set registers 1-7, 9-11, 14 and 15 in all
- configurations. Where the register settings depend on DMA selection
- the driver will update the bits itself when you open or close.
- Loading a new table with the interface open is not recommended.
- </para>
- <para>
- There are three standard configurations supported by the core
- code. In PIO mode the interface is programmed up to use
- interrupt driven PIO. This places high demands on the host processor
- to avoid latency. The driver is written to take account of latency
- issues but it cannot avoid latencies caused by other drivers,
- notably IDE in PIO mode. Because the drivers allocate buffers you
- must also prevent MTU changes while the port is open.
- </para>
- <para>
- Once the port is open it will call the rx_function of each channel
- whenever a completed packet arrived. This is invoked from
- interrupt context and passes you the channel and a network
- buffer (struct sk_buff) holding the data. The data includes
- the CRC bytes so most users will want to trim the last two
- bytes before processing the data. This function is very timing
- critical. When you wish to simply discard data the support
- code provides the function <function>z8530_null_rx</function>
- to discard the data.
- </para>
- <para>
- To active PIO mode sending and receiving the <function>
- z8530_sync_open</function> is called. This expects to be passed
- the network device and the channel. Typically this is called from
- your network device open callback. On a failure a non zero error
- status is returned. The <function>z8530_sync_close</function>
- function shuts down a PIO channel. This must be done before the
- channel is opened again and before the driver shuts down
- and unloads.
- </para>
- <para>
- The ideal mode of operation is dual channel DMA mode. Here the
- kernel driver will configure the board for DMA in both directions.
- The driver also handles ISA DMA issues such as controller
- programming and the memory range limit for you. This mode is
- activated by calling the <function>z8530_sync_dma_open</function>
- function. On failure a non zero error value is returned.
- Once this mode is activated it can be shut down by calling the
- <function>z8530_sync_dma_close</function>. You must call the close
- function matching the open mode you used.
- </para>
- <para>
- The final supported mode uses a single DMA channel to drive the
- transmit side. As the Z85C30 has a larger FIFO on the receive
- channel this tends to increase the maximum speed a little.
- This is activated by calling the <function>z8530_sync_txdma_open
- </function>. This returns a non zero error code on failure. The
- <function>z8530_sync_txdma_close</function> function closes down
- the Z8530 interface from this mode.
- </para>
- </chapter>
-
- <chapter id="Network_Layer_Functions">
- <title>Network Layer Functions</title>
- <para>
- The Z8530 layer provides functions to queue packets for
- transmission. The driver internally buffers the frame currently
- being transmitted and one further frame (in order to keep back
- to back transmission running). Any further buffering is up to
- the caller.
- </para>
- <para>
- The function <function>z8530_queue_xmit</function> takes a network
- buffer in sk_buff format and queues it for transmission. The
- caller must provide the entire packet with the exception of the
- bitstuffing and CRC. This is normally done by the caller via
- the generic HDLC interface layer. It returns 0 if the buffer has been
- queued and non zero values for queue full. If the function accepts
- the buffer it becomes property of the Z8530 layer and the caller
- should not free it.
- </para>
- <para>
- The function <function>z8530_get_stats</function> returns a pointer
- to an internally maintained per interface statistics block. This
- provides most of the interface code needed to implement the network
- layer get_stats callback.
- </para>
- </chapter>
-
- <chapter id="Porting_The_Z8530_Driver">
- <title>Porting The Z8530 Driver</title>
- <para>
- The Z8530 driver is written to be portable. In DMA mode it makes
- assumptions about the use of ISA DMA. These are probably warranted
- in most cases as the Z85230 in particular was designed to glue to PC
- type machines. The PIO mode makes no real assumptions.
- </para>
- <para>
- Should you need to retarget the Z8530 driver to another architecture
- the only code that should need changing are the port I/O functions.
- At the moment these assume PC I/O port accesses. This may not be
- appropriate for all platforms. Replacing
- <function>z8530_read_port</function> and <function>z8530_write_port
- </function> is intended to be all that is required to port this
- driver layer.
- </para>
- </chapter>
-
- <chapter id="bugs">
- <title>Known Bugs And Assumptions</title>
- <para>
- <variablelist>
- <varlistentry><term>Interrupt Locking</term>
- <listitem>
- <para>
- The locking in the driver is done via the global cli/sti lock. This
- makes for relatively poor SMP performance. Switching this to use a
- per device spin lock would probably materially improve performance.
- </para>
- </listitem></varlistentry>
-
- <varlistentry><term>Occasional Failures</term>
- <listitem>
- <para>
- We have reports of occasional failures when run for very long
- periods of time and the driver starts to receive junk frames. At
- the moment the cause of this is not clear.
- </para>
- </listitem></varlistentry>
- </variablelist>
-
- </para>
- </chapter>
-
- <chapter id="pubfunctions">
- <title>Public Functions Provided</title>
-!Edrivers/net/wan/z85230.c
- </chapter>
-
- <chapter id="intfunctions">
- <title>Internal Functions</title>
-!Idrivers/net/wan/z85230.c
- </chapter>
-
-</book>
diff --git a/Documentation/IPMI.txt b/Documentation/IPMI.txt
index 6962cab997ef..aa77a25a0940 100644
--- a/Documentation/IPMI.txt
+++ b/Documentation/IPMI.txt
@@ -1,9 +1,8 @@
+=====================
+The Linux IPMI Driver
+=====================
- The Linux IPMI Driver
- ---------------------
- Corey Minyard
- <minyard@mvista.com>
- <minyard@acm.org>
+:Author: Corey Minyard <minyard@mvista.com> / <minyard@acm.org>
The Intelligent Platform Management Interface, or IPMI, is a
standard for controlling intelligent devices that monitor a system.
@@ -141,7 +140,7 @@ Addressing
----------
The IPMI addressing works much like IP addresses, you have an overlay
-to handle the different address types. The overlay is:
+to handle the different address types. The overlay is::
struct ipmi_addr
{
@@ -153,7 +152,7 @@ to handle the different address types. The overlay is:
The addr_type determines what the address really is. The driver
currently understands two different types of addresses.
-"System Interface" addresses are defined as:
+"System Interface" addresses are defined as::
struct ipmi_system_interface_addr
{
@@ -166,7 +165,7 @@ straight to the BMC on the current card. The channel must be
IPMI_BMC_CHANNEL.
Messages that are destined to go out on the IPMB bus use the
-IPMI_IPMB_ADDR_TYPE address type. The format is
+IPMI_IPMB_ADDR_TYPE address type. The format is::
struct ipmi_ipmb_addr
{
@@ -184,16 +183,16 @@ spec.
Messages
--------
-Messages are defined as:
+Messages are defined as::
-struct ipmi_msg
-{
+ struct ipmi_msg
+ {
unsigned char netfn;
unsigned char lun;
unsigned char cmd;
unsigned char *data;
int data_len;
-};
+ };
The driver takes care of adding/stripping the header information. The
data portion is just the data to be send (do NOT put addressing info
@@ -208,7 +207,7 @@ block of data, even when receiving messages. Otherwise the driver
will have no place to put the message.
Messages coming up from the message handler in kernelland will come in
-as:
+as::
struct ipmi_recv_msg
{
@@ -246,6 +245,7 @@ and the user should not have to care what type of SMI is below them.
Watching For Interfaces
+^^^^^^^^^^^^^^^^^^^^^^^
When your code comes up, the IPMI driver may or may not have detected
if IPMI devices exist. So you might have to defer your setup until
@@ -256,6 +256,7 @@ and tell you when they come and go.
Creating the User
+^^^^^^^^^^^^^^^^^
To use the message handler, you must first create a user using
ipmi_create_user. The interface number specifies which SMI you want
@@ -272,6 +273,7 @@ closing the device automatically destroys the user.
Messaging
+^^^^^^^^^
To send a message from kernel-land, the ipmi_request_settime() call does
pretty much all message handling. Most of the parameter are
@@ -321,6 +323,7 @@ though, since it is tricky to manage your own buffers.
Events and Incoming Commands
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The driver takes care of polling for IPMI events and receiving
commands (commands are messages that are not responses, they are
@@ -367,7 +370,7 @@ in the system. It discovers interfaces through a host of different
methods, depending on the system.
You can specify up to four interfaces on the module load line and
-control some module parameters:
+control some module parameters::
modprobe ipmi_si.o type=<type1>,<type2>....
ports=<port1>,<port2>... addrs=<addr1>,<addr2>...
@@ -437,7 +440,7 @@ default is one. Setting to 0 is useful with the hotmod, but is
obviously only useful for modules.
When compiled into the kernel, the parameters can be specified on the
-kernel command line as:
+kernel command line as::
ipmi_si.type=<type1>,<type2>...
ipmi_si.ports=<port1>,<port2>... ipmi_si.addrs=<addr1>,<addr2>...
@@ -474,16 +477,22 @@ The driver supports a hot add and remove of interfaces. This way,
interfaces can be added or removed after the kernel is up and running.
This is done using /sys/modules/ipmi_si/parameters/hotmod, which is a
write-only parameter. You write a string to this interface. The string
-has the format:
+has the format::
+
<op1>[:op2[:op3...]]
-The "op"s are:
+
+The "op"s are::
+
add|remove,kcs|bt|smic,mem|i/o,<address>[,<opt1>[,<opt2>[,...]]]
-You can specify more than one interface on the line. The "opt"s are:
+
+You can specify more than one interface on the line. The "opt"s are::
+
rsp=<regspacing>
rsi=<regsize>
rsh=<regshift>
irq=<irq>
ipmb=<ipmb slave addr>
+
and these have the same meanings as discussed above. Note that you
can also use this on the kernel command line for a more compact format
for specifying an interface. Note that when removing an interface,
@@ -496,7 +505,7 @@ The SMBus Driver (SSIF)
The SMBus driver allows up to 4 SMBus devices to be configured in the
system. By default, the driver will only register with something it
finds in DMI or ACPI tables. You can change this
-at module load time (for a module) with:
+at module load time (for a module) with::
modprobe ipmi_ssif.o
addr=<i2caddr1>[,<i2caddr2>[,...]]
@@ -535,7 +544,7 @@ the smb_addr parameter unless you have DMI or ACPI data to tell the
driver what to use.
When compiled into the kernel, the addresses can be specified on the
-kernel command line as:
+kernel command line as::
ipmb_ssif.addr=<i2caddr1>[,<i2caddr2>[...]]
ipmi_ssif.adapter=<adapter1>[,<adapter2>[...]]
@@ -565,9 +574,9 @@ Some users need more detailed information about a device, like where
the address came from or the raw base device for the IPMI interface.
You can use the IPMI smi_watcher to catch the IPMI interfaces as they
come or go, and to grab the information, you can use the function
-ipmi_get_smi_info(), which returns the following structure:
+ipmi_get_smi_info(), which returns the following structure::
-struct ipmi_smi_info {
+ struct ipmi_smi_info {
enum ipmi_addr_src addr_src;
struct device *dev;
union {
@@ -575,7 +584,7 @@ struct ipmi_smi_info {
void *acpi_handle;
} acpi_info;
} addr_info;
-};
+ };
Currently special info for only for SI_ACPI address sources is
returned. Others may be added as necessary.
@@ -590,7 +599,7 @@ Watchdog
A watchdog timer is provided that implements the Linux-standard
watchdog timer interface. It has three module parameters that can be
-used to control it:
+used to control it::
modprobe ipmi_watchdog timeout=<t> pretimeout=<t> action=<action type>
preaction=<preaction type> preop=<preop type> start_now=x
@@ -635,7 +644,7 @@ watchdog device is closed. The default value of nowayout is true
if the CONFIG_WATCHDOG_NOWAYOUT option is enabled, or false if not.
When compiled into the kernel, the kernel command line is available
-for configuring the watchdog:
+for configuring the watchdog::
ipmi_watchdog.timeout=<t> ipmi_watchdog.pretimeout=<t>
ipmi_watchdog.action=<action type>
@@ -675,6 +684,7 @@ also get a bunch of OEM events holding the panic string.
The field settings of the events are:
+
* Generator ID: 0x21 (kernel)
* EvM Rev: 0x03 (this event is formatting in IPMI 1.0 format)
* Sensor Type: 0x20 (OS critical stop sensor)
@@ -683,18 +693,20 @@ The field settings of the events are:
* Event Data 1: 0xa1 (Runtime stop in OEM bytes 2 and 3)
* Event data 2: second byte of panic string
* Event data 3: third byte of panic string
+
See the IPMI spec for the details of the event layout. This event is
always sent to the local management controller. It will handle routing
the message to the right place
Other OEM events have the following format:
-Record ID (bytes 0-1): Set by the SEL.
-Record type (byte 2): 0xf0 (OEM non-timestamped)
-byte 3: The slave address of the card saving the panic
-byte 4: A sequence number (starting at zero)
-The rest of the bytes (11 bytes) are the panic string. If the panic string
-is longer than 11 bytes, multiple messages will be sent with increasing
-sequence numbers.
+
+* Record ID (bytes 0-1): Set by the SEL.
+* Record type (byte 2): 0xf0 (OEM non-timestamped)
+* byte 3: The slave address of the card saving the panic
+* byte 4: A sequence number (starting at zero)
+ The rest of the bytes (11 bytes) are the panic string. If the panic string
+ is longer than 11 bytes, multiple messages will be sent with increasing
+ sequence numbers.
Because you cannot send OEM events using the standard interface, this
function will attempt to find an SEL and add the events there. It
diff --git a/Documentation/IRQ-affinity.txt b/Documentation/IRQ-affinity.txt
index 01a675175a36..29da5000836a 100644
--- a/Documentation/IRQ-affinity.txt
+++ b/Documentation/IRQ-affinity.txt
@@ -1,8 +1,11 @@
+================
+SMP IRQ affinity
+================
+
ChangeLog:
- Started by Ingo Molnar <mingo@redhat.com>
- Update by Max Krasnyansky <maxk@qualcomm.com>
+ - Started by Ingo Molnar <mingo@redhat.com>
+ - Update by Max Krasnyansky <maxk@qualcomm.com>
-SMP IRQ affinity
/proc/irq/IRQ#/smp_affinity and /proc/irq/IRQ#/smp_affinity_list specify
which target CPUs are permitted for a given IRQ source. It's a bitmask
@@ -16,50 +19,52 @@ will be set to the default mask. It can then be changed as described above.
Default mask is 0xffffffff.
Here is an example of restricting IRQ44 (eth1) to CPU0-3 then restricting
-it to CPU4-7 (this is an 8-CPU SMP box):
+it to CPU4-7 (this is an 8-CPU SMP box)::
-[root@moon 44]# cd /proc/irq/44
-[root@moon 44]# cat smp_affinity
-ffffffff
+ [root@moon 44]# cd /proc/irq/44
+ [root@moon 44]# cat smp_affinity
+ ffffffff
-[root@moon 44]# echo 0f > smp_affinity
-[root@moon 44]# cat smp_affinity
-0000000f
-[root@moon 44]# ping -f h
-PING hell (195.4.7.3): 56 data bytes
-...
---- hell ping statistics ---
-6029 packets transmitted, 6027 packets received, 0% packet loss
-round-trip min/avg/max = 0.1/0.1/0.4 ms
-[root@moon 44]# cat /proc/interrupts | grep 'CPU\|44:'
- CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7
- 44: 1068 1785 1785 1783 0 0 0 0 IO-APIC-level eth1
+ [root@moon 44]# echo 0f > smp_affinity
+ [root@moon 44]# cat smp_affinity
+ 0000000f
+ [root@moon 44]# ping -f h
+ PING hell (195.4.7.3): 56 data bytes
+ ...
+ --- hell ping statistics ---
+ 6029 packets transmitted, 6027 packets received, 0% packet loss
+ round-trip min/avg/max = 0.1/0.1/0.4 ms
+ [root@moon 44]# cat /proc/interrupts | grep 'CPU\|44:'
+ CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7
+ 44: 1068 1785 1785 1783 0 0 0 0 IO-APIC-level eth1
As can be seen from the line above IRQ44 was delivered only to the first four
processors (0-3).
Now lets restrict that IRQ to CPU(4-7).
-[root@moon 44]# echo f0 > smp_affinity
-[root@moon 44]# cat smp_affinity
-000000f0
-[root@moon 44]# ping -f h
-PING hell (195.4.7.3): 56 data bytes
-..
---- hell ping statistics ---
-2779 packets transmitted, 2777 packets received, 0% packet loss
-round-trip min/avg/max = 0.1/0.5/585.4 ms
-[root@moon 44]# cat /proc/interrupts | 'CPU\|44:'
- CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7
- 44: 1068 1785 1785 1783 1784 1069 1070 1069 IO-APIC-level eth1
+::
+
+ [root@moon 44]# echo f0 > smp_affinity
+ [root@moon 44]# cat smp_affinity
+ 000000f0
+ [root@moon 44]# ping -f h
+ PING hell (195.4.7.3): 56 data bytes
+ ..
+ --- hell ping statistics ---
+ 2779 packets transmitted, 2777 packets received, 0% packet loss
+ round-trip min/avg/max = 0.1/0.5/585.4 ms
+ [root@moon 44]# cat /proc/interrupts | 'CPU\|44:'
+ CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7
+ 44: 1068 1785 1785 1783 1784 1069 1070 1069 IO-APIC-level eth1
This time around IRQ44 was delivered only to the last four processors.
i.e counters for the CPU0-3 did not change.
-Here is an example of limiting that same irq (44) to cpus 1024 to 1031:
+Here is an example of limiting that same irq (44) to cpus 1024 to 1031::
-[root@moon 44]# echo 1024-1031 > smp_affinity_list
-[root@moon 44]# cat smp_affinity_list
-1024-1031
+ [root@moon 44]# echo 1024-1031 > smp_affinity_list
+ [root@moon 44]# cat smp_affinity_list
+ 1024-1031
Note that to do this with a bitmask would require 32 bitmasks of zero
to follow the pertinent one.
diff --git a/Documentation/IRQ-domain.txt b/Documentation/IRQ-domain.txt
index 82001a25a14b..4a1cd7645d85 100644
--- a/Documentation/IRQ-domain.txt
+++ b/Documentation/IRQ-domain.txt
@@ -1,4 +1,6 @@
-irq_domain interrupt number mapping library
+===============================================
+The irq_domain interrupt number mapping library
+===============================================
The current design of the Linux kernel uses a single large number
space where each separate IRQ source is assigned a different number.
@@ -36,7 +38,9 @@ irq_domain also implements translation from an abstract irq_fwspec
structure to hwirq numbers (Device Tree and ACPI GSI so far), and can
be easily extended to support other IRQ topology data sources.
-=== irq_domain usage ===
+irq_domain usage
+================
+
An interrupt controller driver creates and registers an irq_domain by
calling one of the irq_domain_add_*() functions (each mapping method
has a different allocator function, more on that later). The function
@@ -62,15 +66,21 @@ If the driver has the Linux IRQ number or the irq_data pointer, and
needs to know the associated hwirq number (such as in the irq_chip
callbacks) then it can be directly obtained from irq_data->hwirq.
-=== Types of irq_domain mappings ===
+Types of irq_domain mappings
+============================
+
There are several mechanisms available for reverse mapping from hwirq
to Linux irq, and each mechanism uses a different allocation function.
Which reverse map type should be used depends on the use case. Each
of the reverse map types are described below:
-==== Linear ====
-irq_domain_add_linear()
-irq_domain_create_linear()
+Linear
+------
+
+::
+
+ irq_domain_add_linear()
+ irq_domain_create_linear()
The linear reverse map maintains a fixed size table indexed by the
hwirq number. When a hwirq is mapped, an irq_desc is allocated for
@@ -89,9 +99,13 @@ accepts a more general abstraction 'struct fwnode_handle'.
The majority of drivers should use the linear map.
-==== Tree ====
-irq_domain_add_tree()
-irq_domain_create_tree()
+Tree
+----
+
+::
+
+ irq_domain_add_tree()
+ irq_domain_create_tree()
The irq_domain maintains a radix tree map from hwirq numbers to Linux
IRQs. When an hwirq is mapped, an irq_desc is allocated and the
@@ -109,8 +123,12 @@ accepts a more general abstraction 'struct fwnode_handle'.
Very few drivers should need this mapping.
-==== No Map ===-
-irq_domain_add_nomap()
+No Map
+------
+
+::
+
+ irq_domain_add_nomap()
The No Map mapping is to be used when the hwirq number is
programmable in the hardware. In this case it is best to program the
@@ -121,10 +139,14 @@ Linux IRQ number into the hardware.
Most drivers cannot use this mapping.
-==== Legacy ====
-irq_domain_add_simple()
-irq_domain_add_legacy()
-irq_domain_add_legacy_isa()
+Legacy
+------
+
+::
+
+ irq_domain_add_simple()
+ irq_domain_add_legacy()
+ irq_domain_add_legacy_isa()
The Legacy mapping is a special case for drivers that already have a
range of irq_descs allocated for the hwirqs. It is used when the
@@ -163,14 +185,17 @@ that the driver using the simple domain call irq_create_mapping()
before any irq_find_mapping() since the latter will actually work
for the static IRQ assignment case.
-==== Hierarchy IRQ domain ====
+Hierarchy IRQ domain
+--------------------
+
On some architectures, there may be multiple interrupt controllers
involved in delivering an interrupt from the device to the target CPU.
-Let's look at a typical interrupt delivering path on x86 platforms:
+Let's look at a typical interrupt delivering path on x86 platforms::
-Device --> IOAPIC -> Interrupt remapping Controller -> Local APIC -> CPU
+ Device --> IOAPIC -> Interrupt remapping Controller -> Local APIC -> CPU
There are three interrupt controllers involved:
+
1) IOAPIC controller
2) Interrupt remapping controller
3) Local APIC controller
@@ -180,7 +205,8 @@ hardware architecture, an irq_domain data structure is built for each
interrupt controller and those irq_domains are organized into hierarchy.
When building irq_domain hierarchy, the irq_domain near to the device is
child and the irq_domain near to CPU is parent. So a hierarchy structure
-as below will be built for the example above.
+as below will be built for the example above::
+
CPU Vector irq_domain (root irq_domain to manage CPU vectors)
^
|
@@ -190,6 +216,7 @@ as below will be built for the example above.
IOAPIC irq_domain (manage IOAPIC delivery entries/pins)
There are four major interfaces to use hierarchy irq_domain:
+
1) irq_domain_alloc_irqs(): allocate IRQ descriptors and interrupt
controller related resources to deliver these interrupts.
2) irq_domain_free_irqs(): free IRQ descriptors and interrupt controller
@@ -199,7 +226,8 @@ There are four major interfaces to use hierarchy irq_domain:
4) irq_domain_deactivate_irq(): deactivate interrupt controller hardware
to stop delivering the interrupt.
-Following changes are needed to support hierarchy irq_domain.
+Following changes are needed to support hierarchy irq_domain:
+
1) a new field 'parent' is added to struct irq_domain; it's used to
maintain irq_domain hierarchy information.
2) a new field 'parent_data' is added to struct irq_data; it's used to
@@ -223,6 +251,7 @@ software architecture.
For an interrupt controller driver to support hierarchy irq_domain, it
needs to:
+
1) Implement irq_domain_ops.alloc and irq_domain_ops.free
2) Optionally implement irq_domain_ops.activate and
irq_domain_ops.deactivate.
@@ -231,5 +260,42 @@ needs to:
4) No need to implement irq_domain_ops.map and irq_domain_ops.unmap,
they are unused with hierarchy irq_domain.
-Hierarchy irq_domain may also be used to support other architectures,
-such as ARM, ARM64 etc.
+Hierarchy irq_domain is in no way x86 specific, and is heavily used to
+support other architectures, such as ARM, ARM64 etc.
+
+=== Debugging ===
+
+If you switch on CONFIG_IRQ_DOMAIN_DEBUG (which depends on
+CONFIG_IRQ_DOMAIN and CONFIG_DEBUG_FS), you will find a new file in
+your debugfs mount point, called irq_domain_mapping. This file
+contains a live snapshot of all the IRQ domains in the system:
+
+ name mapped linear-max direct-max devtree-node
+ pl061 8 8 0 /smb/gpio@e0080000
+ pl061 8 8 0 /smb/gpio@e1050000
+ pMSI 0 0 0 /interrupt-controller@e1101000/v2m@e0080000
+ MSI 37 0 0 /interrupt-controller@e1101000/v2m@e0080000
+ GICv2m 37 0 0 /interrupt-controller@e1101000/v2m@e0080000
+ GICv2 448 448 0 /interrupt-controller@e1101000
+
+it also iterates over the interrupts to display their mapping in the
+domains, and makes the domain stacking visible:
+
+
+irq hwirq chip name chip data active type domain
+ 1 0x00019 GICv2 0xffff00000916bfd8 * LINEAR GICv2
+ 2 0x0001d GICv2 0xffff00000916bfd8 LINEAR GICv2
+ 3 0x0001e GICv2 0xffff00000916bfd8 * LINEAR GICv2
+ 4 0x0001b GICv2 0xffff00000916bfd8 * LINEAR GICv2
+ 5 0x0001a GICv2 0xffff00000916bfd8 LINEAR GICv2
+[...]
+ 96 0x81808 MSI 0x (null) RADIX MSI
+ 96+ 0x00063 GICv2m 0xffff8003ee116980 RADIX GICv2m
+ 96+ 0x00063 GICv2 0xffff00000916bfd8 LINEAR GICv2
+ 97 0x08800 MSI 0x (null) * RADIX MSI
+ 97+ 0x00064 GICv2m 0xffff8003ee116980 * RADIX GICv2m
+ 97+ 0x00064 GICv2 0xffff00000916bfd8 * LINEAR GICv2
+
+Here, interrupts 1-5 are only using a single domain, while 96 and 97
+are build out of a stack of three domain, each level performing a
+particular function.
diff --git a/Documentation/IRQ.txt b/Documentation/IRQ.txt
index 1011e7175021..4273806a606b 100644
--- a/Documentation/IRQ.txt
+++ b/Documentation/IRQ.txt
@@ -1,4 +1,6 @@
+===============
What is an IRQ?
+===============
An IRQ is an interrupt request from a device.
Currently they can come in over a pin, or over a packet.
diff --git a/Documentation/Intel-IOMMU.txt b/Documentation/Intel-IOMMU.txt
index 49585b6e1ea2..9dae6b47e398 100644
--- a/Documentation/Intel-IOMMU.txt
+++ b/Documentation/Intel-IOMMU.txt
@@ -1,3 +1,4 @@
+===================
Linux IOMMU Support
===================
@@ -9,11 +10,11 @@ This guide gives a quick cheat sheet for some basic understanding.
Some Keywords
-DMAR - DMA remapping
-DRHD - DMA Remapping Hardware Unit Definition
-RMRR - Reserved memory Region Reporting Structure
-ZLR - Zero length reads from PCI devices
-IOVA - IO Virtual address.
+- DMAR - DMA remapping
+- DRHD - DMA Remapping Hardware Unit Definition
+- RMRR - Reserved memory Region Reporting Structure
+- ZLR - Zero length reads from PCI devices
+- IOVA - IO Virtual address.
Basic stuff
-----------
@@ -33,7 +34,7 @@ devices that need to access these regions. OS is expected to setup
unity mappings for these regions for these devices to access these regions.
How is IOVA generated?
----------------------
+----------------------
Well behaved drivers call pci_map_*() calls before sending command to device
that needs to perform DMA. Once DMA is completed and mapping is no longer
@@ -82,14 +83,14 @@ in ACPI.
ACPI: DMAR (v001 A M I OEMDMAR 0x00000001 MSFT 0x00000097) @ 0x000000007f5b5ef0
When DMAR is being processed and initialized by ACPI, prints DMAR locations
-and any RMRR's processed.
+and any RMRR's processed::
-ACPI DMAR:Host address width 36
-ACPI DMAR:DRHD (flags: 0x00000000)base: 0x00000000fed90000
-ACPI DMAR:DRHD (flags: 0x00000000)base: 0x00000000fed91000
-ACPI DMAR:DRHD (flags: 0x00000001)base: 0x00000000fed93000
-ACPI DMAR:RMRR base: 0x00000000000ed000 end: 0x00000000000effff
-ACPI DMAR:RMRR base: 0x000000007f600000 end: 0x000000007fffffff
+ ACPI DMAR:Host address width 36
+ ACPI DMAR:DRHD (flags: 0x00000000)base: 0x00000000fed90000
+ ACPI DMAR:DRHD (flags: 0x00000000)base: 0x00000000fed91000
+ ACPI DMAR:DRHD (flags: 0x00000001)base: 0x00000000fed93000
+ ACPI DMAR:RMRR base: 0x00000000000ed000 end: 0x00000000000effff
+ ACPI DMAR:RMRR base: 0x000000007f600000 end: 0x000000007fffffff
When DMAR is enabled for use, you will notice..
@@ -98,10 +99,12 @@ PCI-DMA: Using DMAR IOMMU
Fault reporting
---------------
-DMAR:[DMA Write] Request device [00:02.0] fault addr 6df084000
-DMAR:[fault reason 05] PTE Write access is not set
-DMAR:[DMA Write] Request device [00:02.0] fault addr 6df084000
-DMAR:[fault reason 05] PTE Write access is not set
+::
+
+ DMAR:[DMA Write] Request device [00:02.0] fault addr 6df084000
+ DMAR:[fault reason 05] PTE Write access is not set
+ DMAR:[DMA Write] Request device [00:02.0] fault addr 6df084000
+ DMAR:[fault reason 05] PTE Write access is not set
TBD
----
diff --git a/Documentation/Makefile b/Documentation/Makefile
index c2a469112c37..85f7856f0092 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -1 +1,118 @@
+# -*- makefile -*-
+# Makefile for Sphinx documentation
+#
+
subdir-y :=
+
+# You can set these variables from the command line.
+SPHINXBUILD = sphinx-build
+SPHINXOPTS =
+SPHINXDIRS = .
+_SPHINXDIRS = $(patsubst $(srctree)/Documentation/%/conf.py,%,$(wildcard $(srctree)/Documentation/*/conf.py))
+SPHINX_CONF = conf.py
+PAPER =
+BUILDDIR = $(obj)/output
+PDFLATEX = xelatex
+LATEXOPTS = -interaction=batchmode
+
+# User-friendly check for sphinx-build
+HAVE_SPHINX := $(shell if which $(SPHINXBUILD) >/dev/null 2>&1; then echo 1; else echo 0; fi)
+
+ifeq ($(HAVE_SPHINX),0)
+
+.DEFAULT:
+ $(warning The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed and in PATH, or set the SPHINXBUILD make variable to point to the full path of the '$(SPHINXBUILD)' executable.)
+ @echo
+ @./scripts/sphinx-pre-install
+ @echo " SKIP Sphinx $@ target."
+
+else # HAVE_SPHINX
+
+# User-friendly check for pdflatex
+HAVE_PDFLATEX := $(shell if which $(PDFLATEX) >/dev/null 2>&1; then echo 1; else echo 0; fi)
+
+# Internal variables.
+PAPEROPT_a4 = -D latex_paper_size=a4
+PAPEROPT_letter = -D latex_paper_size=letter
+KERNELDOC = $(srctree)/scripts/kernel-doc
+KERNELDOC_CONF = -D kerneldoc_srctree=$(srctree) -D kerneldoc_bin=$(KERNELDOC)
+ALLSPHINXOPTS = $(KERNELDOC_CONF) $(PAPEROPT_$(PAPER)) $(SPHINXOPTS)
+# the i18n builder cannot share the environment and doctrees with the others
+I18NSPHINXOPTS = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
+
+# commands; the 'cmd' from scripts/Kbuild.include is not *loopable*
+loop_cmd = $(echo-cmd) $(cmd_$(1)) || exit;
+
+# $2 sphinx builder e.g. "html"
+# $3 name of the build subfolder / e.g. "media", used as:
+# * dest folder relative to $(BUILDDIR) and
+# * cache folder relative to $(BUILDDIR)/.doctrees
+# $4 dest subfolder e.g. "man" for man pages at media/man
+# $5 reST source folder relative to $(srctree)/$(src),
+# e.g. "media" for the linux-tv book-set at ./Documentation/media
+
+quiet_cmd_sphinx = SPHINX $@ --> file://$(abspath $(BUILDDIR)/$3/$4)
+ cmd_sphinx = $(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/media $2 && \
+ PYTHONDONTWRITEBYTECODE=1 \
+ BUILDDIR=$(abspath $(BUILDDIR)) SPHINX_CONF=$(abspath $(srctree)/$(src)/$5/$(SPHINX_CONF)) \
+ $(SPHINXBUILD) \
+ -b $2 \
+ -c $(abspath $(srctree)/$(src)) \
+ -d $(abspath $(BUILDDIR)/.doctrees/$3) \
+ -D version=$(KERNELVERSION) -D release=$(KERNELRELEASE) \
+ $(ALLSPHINXOPTS) \
+ $(abspath $(srctree)/$(src)/$5) \
+ $(abspath $(BUILDDIR)/$3/$4)
+
+htmldocs:
+ @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,html,$(var),,$(var)))
+
+linkcheckdocs:
+ @$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,linkcheck,$(var),,$(var)))
+
+latexdocs:
+ @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,latex,$(var),latex,$(var)))
+
+ifeq ($(HAVE_PDFLATEX),0)
+
+pdfdocs:
+ $(warning The '$(PDFLATEX)' command was not found. Make sure you have it installed and in PATH to produce PDF output.)
+ @echo " SKIP Sphinx $@ target."
+
+else # HAVE_PDFLATEX
+
+pdfdocs: latexdocs
+ $(foreach var,$(SPHINXDIRS), $(MAKE) PDFLATEX=$(PDFLATEX) LATEXOPTS="$(LATEXOPTS)" -C $(BUILDDIR)/$(var)/latex || exit;)
+
+endif # HAVE_PDFLATEX
+
+epubdocs:
+ @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,epub,$(var),epub,$(var)))
+
+xmldocs:
+ @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,xml,$(var),xml,$(var)))
+
+endif # HAVE_SPHINX
+
+# The following targets are independent of HAVE_SPHINX, and the rules should
+# work or silently pass without Sphinx.
+
+cleandocs:
+ $(Q)rm -rf $(BUILDDIR)
+ $(Q)$(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/media clean
+
+dochelp:
+ @echo ' Linux kernel internal documentation in different formats from ReST:'
+ @echo ' htmldocs - HTML'
+ @echo ' latexdocs - LaTeX'
+ @echo ' pdfdocs - PDF'
+ @echo ' epubdocs - EPUB'
+ @echo ' xmldocs - XML'
+ @echo ' linkcheckdocs - check for broken external links (will connect to external hosts)'
+ @echo ' cleandocs - clean all generated files'
+ @echo
+ @echo ' make SPHINXDIRS="s1 s2" [target] Generate only docs of folder s1, s2'
+ @echo ' valid values for SPHINXDIRS are: $(_SPHINXDIRS)'
+ @echo
+ @echo ' make SPHINX_CONF={conf-file} [target] use *additional* sphinx-build'
+ @echo ' configuration. This is e.g. useful to build with nit-picking config.'
diff --git a/Documentation/Makefile.sphinx b/Documentation/Makefile.sphinx
deleted file mode 100644
index bcf529f6cf9b..000000000000
--- a/Documentation/Makefile.sphinx
+++ /dev/null
@@ -1,130 +0,0 @@
-# -*- makefile -*-
-# Makefile for Sphinx documentation
-#
-
-# You can set these variables from the command line.
-SPHINXBUILD = sphinx-build
-SPHINXOPTS =
-SPHINXDIRS = .
-_SPHINXDIRS = $(patsubst $(srctree)/Documentation/%/conf.py,%,$(wildcard $(srctree)/Documentation/*/conf.py))
-SPHINX_CONF = conf.py
-PAPER =
-BUILDDIR = $(obj)/output
-PDFLATEX = xelatex
-LATEXOPTS = -interaction=batchmode
-
-# User-friendly check for sphinx-build
-HAVE_SPHINX := $(shell if which $(SPHINXBUILD) >/dev/null 2>&1; then echo 1; else echo 0; fi)
-
-ifeq ($(HAVE_SPHINX),0)
-
-.DEFAULT:
- $(warning The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed and in PATH, or set the SPHINXBUILD make variable to point to the full path of the '$(SPHINXBUILD)' executable.)
- @echo " SKIP Sphinx $@ target."
-
-else ifneq ($(DOCBOOKS),)
-
-# Skip Sphinx build if the user explicitly requested DOCBOOKS.
-.DEFAULT:
- @echo " SKIP Sphinx $@ target (DOCBOOKS specified)."
-
-else # HAVE_SPHINX
-
-# User-friendly check for pdflatex
-HAVE_PDFLATEX := $(shell if which $(PDFLATEX) >/dev/null 2>&1; then echo 1; else echo 0; fi)
-
-# Internal variables.
-PAPEROPT_a4 = -D latex_paper_size=a4
-PAPEROPT_letter = -D latex_paper_size=letter
-KERNELDOC = $(srctree)/scripts/kernel-doc
-KERNELDOC_CONF = -D kerneldoc_srctree=$(srctree) -D kerneldoc_bin=$(KERNELDOC)
-ALLSPHINXOPTS = $(KERNELDOC_CONF) $(PAPEROPT_$(PAPER)) $(SPHINXOPTS)
-# the i18n builder cannot share the environment and doctrees with the others
-I18NSPHINXOPTS = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
-
-# commands; the 'cmd' from scripts/Kbuild.include is not *loopable*
-loop_cmd = $(echo-cmd) $(cmd_$(1)) || exit;
-
-# $2 sphinx builder e.g. "html"
-# $3 name of the build subfolder / e.g. "media", used as:
-# * dest folder relative to $(BUILDDIR) and
-# * cache folder relative to $(BUILDDIR)/.doctrees
-# $4 dest subfolder e.g. "man" for man pages at media/man
-# $5 reST source folder relative to $(srctree)/$(src),
-# e.g. "media" for the linux-tv book-set at ./Documentation/media
-
-quiet_cmd_sphinx = SPHINX $@ --> file://$(abspath $(BUILDDIR)/$3/$4)
- cmd_sphinx = $(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/media $2 && \
- PYTHONDONTWRITEBYTECODE=1 \
- BUILDDIR=$(abspath $(BUILDDIR)) SPHINX_CONF=$(abspath $(srctree)/$(src)/$5/$(SPHINX_CONF)) \
- $(SPHINXBUILD) \
- -b $2 \
- -c $(abspath $(srctree)/$(src)) \
- -d $(abspath $(BUILDDIR)/.doctrees/$3) \
- -D version=$(KERNELVERSION) -D release=$(KERNELRELEASE) \
- $(ALLSPHINXOPTS) \
- $(abspath $(srctree)/$(src)/$5) \
- $(abspath $(BUILDDIR)/$3/$4)
-
-htmldocs:
- @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,html,$(var),,$(var)))
-
-linkcheckdocs:
- @$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,linkcheck,$(var),,$(var)))
-
-latexdocs:
- @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,latex,$(var),latex,$(var)))
-
-ifeq ($(HAVE_PDFLATEX),0)
-
-pdfdocs:
- $(warning The '$(PDFLATEX)' command was not found. Make sure you have it installed and in PATH to produce PDF output.)
- @echo " SKIP Sphinx $@ target."
-
-else # HAVE_PDFLATEX
-
-pdfdocs: latexdocs
- $(foreach var,$(SPHINXDIRS), $(MAKE) PDFLATEX=$(PDFLATEX) LATEXOPTS="$(LATEXOPTS)" -C $(BUILDDIR)/$(var)/latex || exit;)
-
-endif # HAVE_PDFLATEX
-
-epubdocs:
- @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,epub,$(var),epub,$(var)))
-
-xmldocs:
- @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,xml,$(var),xml,$(var)))
-
-endif # HAVE_SPHINX
-
-# The following targets are independent of HAVE_SPHINX, and the rules should
-# work or silently pass without Sphinx.
-
-# no-ops for the Sphinx toolchain
-sgmldocs:
- @:
-psdocs:
- @:
-mandocs:
- @:
-installmandocs:
- @:
-
-cleandocs:
- $(Q)rm -rf $(BUILDDIR)
- $(Q)$(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/media clean
-
-dochelp:
- @echo ' Linux kernel internal documentation in different formats (Sphinx):'
- @echo ' htmldocs - HTML'
- @echo ' latexdocs - LaTeX'
- @echo ' pdfdocs - PDF'
- @echo ' epubdocs - EPUB'
- @echo ' xmldocs - XML'
- @echo ' linkcheckdocs - check for broken external links (will connect to external hosts)'
- @echo ' cleandocs - clean all generated files'
- @echo
- @echo ' make SPHINXDIRS="s1 s2" [target] Generate only docs of folder s1, s2'
- @echo ' valid values for SPHINXDIRS are: $(_SPHINXDIRS)'
- @echo
- @echo ' make SPHINX_CONF={conf-file} [target] use *additional* sphinx-build'
- @echo ' configuration. This is e.g. useful to build with nit-picking config.'
diff --git a/Documentation/PCI/MSI-HOWTO.txt b/Documentation/PCI/MSI-HOWTO.txt
index 1e37138027a3..618e13d5e276 100644
--- a/Documentation/PCI/MSI-HOWTO.txt
+++ b/Documentation/PCI/MSI-HOWTO.txt
@@ -186,7 +186,7 @@ must disable interrupts while the lock is held. If the device sends
a different interrupt, the driver will deadlock trying to recursively
acquire the spinlock. Such deadlocks can be avoided by using
spin_lock_irqsave() or spin_lock_irq() which disable local interrupts
-and acquire the lock (see Documentation/DocBook/kernel-locking).
+and acquire the lock (see Documentation/kernel-hacking/locking.rst).
4.5 How to tell whether MSI/MSI-X is enabled on a device
diff --git a/Documentation/RCU/00-INDEX b/Documentation/RCU/00-INDEX
index 1672573b037a..f46980c060aa 100644
--- a/Documentation/RCU/00-INDEX
+++ b/Documentation/RCU/00-INDEX
@@ -28,8 +28,6 @@ stallwarn.txt
- RCU CPU stall warnings (module parameter rcu_cpu_stall_suppress)
torture.txt
- RCU Torture Test Operation (CONFIG_RCU_TORTURE_TEST)
-trace.txt
- - CONFIG_RCU_TRACE debugfs files and formats
UP.txt
- RCU on Uniprocessor Systems
whatisRCU.txt
diff --git a/Documentation/RCU/Design/Requirements/Requirements.html b/Documentation/RCU/Design/Requirements/Requirements.html
index f60adf112663..62e847bcdcdd 100644
--- a/Documentation/RCU/Design/Requirements/Requirements.html
+++ b/Documentation/RCU/Design/Requirements/Requirements.html
@@ -559,9 +559,7 @@ The <tt>rcu_access_pointer()</tt> on line&nbsp;6 is similar to
For <tt>remove_gp_synchronous()</tt>, as long as all modifications
to <tt>gp</tt> are carried out while holding <tt>gp_lock</tt>,
the above optimizations are harmless.
- However,
- with <tt>CONFIG_SPARSE_RCU_POINTER=y</tt>,
- <tt>sparse</tt> will complain if you
+ However, <tt>sparse</tt> will complain if you
define <tt>gp</tt> with <tt>__rcu</tt> and then
access it without using
either <tt>rcu_access_pointer()</tt> or <tt>rcu_dereference()</tt>.
@@ -1849,7 +1847,8 @@ mass storage, or user patience, whichever comes first.
If the nesting is not visible to the compiler, as is the case with
mutually recursive functions each in its own translation unit,
stack overflow will result.
-If the nesting takes the form of loops, either the control variable
+If the nesting takes the form of loops, perhaps in the guise of tail
+recursion, either the control variable
will overflow or (in the Linux kernel) you will get an RCU CPU stall warning.
Nevertheless, this class of RCU implementations is one
of the most composable constructs in existence.
@@ -1977,9 +1976,8 @@ guard against mishaps and misuse:
and <tt>rcu_dereference()</tt>, perhaps (incorrectly)
substituting a simple assignment.
To catch this sort of error, a given RCU-protected pointer may be
- tagged with <tt>__rcu</tt>, after which running sparse
- with <tt>CONFIG_SPARSE_RCU_POINTER=y</tt> will complain
- about simple-assignment accesses to that pointer.
+ tagged with <tt>__rcu</tt>, after which sparse
+ will complain about simple-assignment accesses to that pointer.
Arnd Bergmann made me aware of this requirement, and also
supplied the needed
<a href="https://lwn.net/Articles/376011/">patch series</a>.
@@ -2036,7 +2034,7 @@ guard against mishaps and misuse:
some other synchronization mechanism, for example, reference
counting.
<li> In kernels built with <tt>CONFIG_RCU_TRACE=y</tt>, RCU-related
- information is provided via both debugfs and event tracing.
+ information is provided via event tracing.
<li> Open-coded use of <tt>rcu_assign_pointer()</tt> and
<tt>rcu_dereference()</tt> to create typical linked
data structures can be surprisingly error-prone.
@@ -2082,6 +2080,8 @@ Some of the relevant points of interest are as follows:
<li> <a href="#Scheduler and RCU">Scheduler and RCU</a>.
<li> <a href="#Tracing and RCU">Tracing and RCU</a>.
<li> <a href="#Energy Efficiency">Energy Efficiency</a>.
+<li> <a href="#Scheduling-Clock Interrupts and RCU">
+ Scheduling-Clock Interrupts and RCU</a>.
<li> <a href="#Memory Efficiency">Memory Efficiency</a>.
<li> <a href="#Performance, Scalability, Response Time, and Reliability">
Performance, Scalability, Response Time, and Reliability</a>.
@@ -2519,11 +2519,7 @@ It is similarly socially unacceptable to interrupt an
<tt>nohz_full</tt> CPU running in userspace.
RCU must therefore track <tt>nohz_full</tt> userspace
execution.
-And in
-<a href="https://lwn.net/Articles/558284/"><tt>CONFIG_NO_HZ_FULL_SYSIDLE=y</tt></a>
-kernels, RCU must separately track idle CPUs on the one hand and
-CPUs that are either idle or executing in userspace on the other.
-In both cases, RCU must be able to sample state at two points in
+RCU must therefore be able to sample state at two points in
time, and be able to determine whether or not some other CPU spent
any time idle and/or executing in userspace.
@@ -2538,6 +2534,134 @@ I learned of many of these requirements via angry phone calls:
Flaming me on the Linux-kernel mailing list was apparently not
sufficient to fully vent their ire at RCU's energy-efficiency bugs!
+<h3><a name="Scheduling-Clock Interrupts and RCU">
+Scheduling-Clock Interrupts and RCU</a></h3>
+
+<p>
+The kernel transitions between in-kernel non-idle execution, userspace
+execution, and the idle loop.
+Depending on kernel configuration, RCU handles these states differently:
+
+<table border=3>
+<tr><th><tt>HZ</tt> Kconfig</th>
+ <th>In-Kernel</th>
+ <th>Usermode</th>
+ <th>Idle</th></tr>
+<tr><th align="left"><tt>HZ_PERIODIC</tt></th>
+ <td>Can rely on scheduling-clock interrupt.</td>
+ <td>Can rely on scheduling-clock interrupt and its
+ detection of interrupt from usermode.</td>
+ <td>Can rely on RCU's dyntick-idle detection.</td></tr>
+<tr><th align="left"><tt>NO_HZ_IDLE</tt></th>
+ <td>Can rely on scheduling-clock interrupt.</td>
+ <td>Can rely on scheduling-clock interrupt and its
+ detection of interrupt from usermode.</td>
+ <td>Can rely on RCU's dyntick-idle detection.</td></tr>
+<tr><th align="left"><tt>NO_HZ_FULL</tt></th>
+ <td>Can only sometimes rely on scheduling-clock interrupt.
+ In other cases, it is necessary to bound kernel execution
+ times and/or use IPIs.</td>
+ <td>Can rely on RCU's dyntick-idle detection.</td>
+ <td>Can rely on RCU's dyntick-idle detection.</td></tr>
+</table>
+
+<table>
+<tr><th>&nbsp;</th></tr>
+<tr><th align="left">Quick Quiz:</th></tr>
+<tr><td>
+ Why can't <tt>NO_HZ_FULL</tt> in-kernel execution rely on the
+ scheduling-clock interrupt, just like <tt>HZ_PERIODIC</tt>
+ and <tt>NO_HZ_IDLE</tt> do?
+</td></tr>
+<tr><th align="left">Answer:</th></tr>
+<tr><td bgcolor="#ffffff"><font color="ffffff">
+ Because, as a performance optimization, <tt>NO_HZ_FULL</tt>
+ does not necessarily re-enable the scheduling-clock interrupt
+ on entry to each and every system call.
+</font></td></tr>
+<tr><td>&nbsp;</td></tr>
+</table>
+
+<p>
+However, RCU must be reliably informed as to whether any given
+CPU is currently in the idle loop, and, for <tt>NO_HZ_FULL</tt>,
+also whether that CPU is executing in usermode, as discussed
+<a href="#Energy Efficiency">earlier</a>.
+It also requires that the scheduling-clock interrupt be enabled when
+RCU needs it to be:
+
+<ol>
+<li> If a CPU is either idle or executing in usermode, and RCU believes
+ it is non-idle, the scheduling-clock tick had better be running.
+ Otherwise, you will get RCU CPU stall warnings. Or at best,
+ very long (11-second) grace periods, with a pointless IPI waking
+ the CPU from time to time.
+<li> If a CPU is in a portion of the kernel that executes RCU read-side
+ critical sections, and RCU believes this CPU to be idle, you will get
+ random memory corruption. <b>DON'T DO THIS!!!</b>
+
+ <br>This is one reason to test with lockdep, which will complain
+ about this sort of thing.
+<li> If a CPU is in a portion of the kernel that is absolutely
+ positively no-joking guaranteed to never execute any RCU read-side
+ critical sections, and RCU believes this CPU to to be idle,
+ no problem. This sort of thing is used by some architectures
+ for light-weight exception handlers, which can then avoid the
+ overhead of <tt>rcu_irq_enter()</tt> and <tt>rcu_irq_exit()</tt>
+ at exception entry and exit, respectively.
+ Some go further and avoid the entireties of <tt>irq_enter()</tt>
+ and <tt>irq_exit()</tt>.
+
+ <br>Just make very sure you are running some of your tests with
+ <tt>CONFIG_PROVE_RCU=y</tt>, just in case one of your code paths
+ was in fact joking about not doing RCU read-side critical sections.
+<li> If a CPU is executing in the kernel with the scheduling-clock
+ interrupt disabled and RCU believes this CPU to be non-idle,
+ and if the CPU goes idle (from an RCU perspective) every few
+ jiffies, no problem. It is usually OK for there to be the
+ occasional gap between idle periods of up to a second or so.
+
+ <br>If the gap grows too long, you get RCU CPU stall warnings.
+<li> If a CPU is either idle or executing in usermode, and RCU believes
+ it to be idle, of course no problem.
+<li> If a CPU is executing in the kernel, the kernel code
+ path is passing through quiescent states at a reasonable
+ frequency (preferably about once per few jiffies, but the
+ occasional excursion to a second or so is usually OK) and the
+ scheduling-clock interrupt is enabled, of course no problem.
+
+ <br>If the gap between a successive pair of quiescent states grows
+ too long, you get RCU CPU stall warnings.
+</ol>
+
+<table>
+<tr><th>&nbsp;</th></tr>
+<tr><th align="left">Quick Quiz:</th></tr>
+<tr><td>
+ But what if my driver has a hardware interrupt handler
+ that can run for many seconds?
+ I cannot invoke <tt>schedule()</tt> from an hardware
+ interrupt handler, after all!
+</td></tr>
+<tr><th align="left">Answer:</th></tr>
+<tr><td bgcolor="#ffffff"><font color="ffffff">
+ One approach is to do <tt>rcu_irq_exit();rcu_irq_enter();</tt>
+ every so often.
+ But given that long-running interrupt handlers can cause
+ other problems, not least for response time, shouldn't you
+ work to keep your interrupt handler's runtime within reasonable
+ bounds?
+</font></td></tr>
+<tr><td>&nbsp;</td></tr>
+</table>
+
+<p>
+But as long as RCU is properly informed of kernel state transitions between
+in-kernel execution, usermode execution, and idle, and as long as the
+scheduling-clock interrupt is enabled when RCU needs it to be, you
+can rest assured that the bugs you encounter will be in some other
+part of RCU or some other part of the kernel!
+
<h3><a name="Memory Efficiency">Memory Efficiency</a></h3>
<p>
@@ -2936,6 +3060,20 @@ to whether or not a CPU is online, which means that <tt>srcu_barrier()</tt>
need not exclude CPU-hotplug operations.
<p>
+SRCU also differs from other RCU flavors in that SRCU's expedited and
+non-expedited grace periods are implemented by the same mechanism.
+This means that in the current SRCU implementation, expediting a
+future grace period has the side effect of expediting all prior
+grace periods that have not yet completed.
+(But please note that this is a property of the current implementation,
+not necessarily of future implementations.)
+In addition, if SRCU has been idle for longer than the interval
+specified by the <tt>srcutree.exp_holdoff</tt> kernel boot parameter
+(25&nbsp;microseconds by default),
+and if a <tt>synchronize_srcu()</tt> invocation ends this idle period,
+that invocation will be automatically expedited.
+
+<p>
As of v4.12, SRCU's callbacks are maintained per-CPU, eliminating
a locking bottleneck present in prior kernel versions.
Although this will allow users to put much heavier stress on
diff --git a/Documentation/RCU/checklist.txt b/Documentation/RCU/checklist.txt
index 877947130ebe..49747717d905 100644
--- a/Documentation/RCU/checklist.txt
+++ b/Documentation/RCU/checklist.txt
@@ -23,6 +23,14 @@ over a rather long period of time, but improvements are always welcome!
Yet another exception is where the low real-time latency of RCU's
read-side primitives is critically important.
+ One final exception is where RCU readers are used to prevent
+ the ABA problem (https://en.wikipedia.org/wiki/ABA_problem)
+ for lockless updates. This does result in the mildly
+ counter-intuitive situation where rcu_read_lock() and
+ rcu_read_unlock() are used to protect updates, however, this
+ approach provides the same potential simplifications that garbage
+ collectors do.
+
1. Does the update code have proper mutual exclusion?
RCU does allow -readers- to run (almost) naked, but -writers- must
@@ -40,7 +48,9 @@ over a rather long period of time, but improvements are always welcome!
explain how this single task does not become a major bottleneck on
big multiprocessor machines (for example, if the task is updating
information relating to itself that other tasks can read, there
- by definition can be no bottleneck).
+ by definition can be no bottleneck). Note that the definition
+ of "large" has changed significantly: Eight CPUs was "large"
+ in the year 2000, but a hundred CPUs was unremarkable in 2017.
2. Do the RCU read-side critical sections make proper use of
rcu_read_lock() and friends? These primitives are needed
@@ -55,6 +65,12 @@ over a rather long period of time, but improvements are always welcome!
Disabling of preemption can serve as rcu_read_lock_sched(), but
is less readable.
+ Letting RCU-protected pointers "leak" out of an RCU read-side
+ critical section is every bid as bad as letting them leak out
+ from under a lock. Unless, of course, you have arranged some
+ other means of protection, such as a lock or a reference count
+ -before- letting them out of the RCU read-side critical section.
+
3. Does the update code tolerate concurrent accesses?
The whole point of RCU is to permit readers to run without
@@ -78,10 +94,10 @@ over a rather long period of time, but improvements are always welcome!
This works quite well, also.
- c. Make updates appear atomic to readers. For example,
+ c. Make updates appear atomic to readers. For example,
pointer updates to properly aligned fields will
appear atomic, as will individual atomic primitives.
- Sequences of perations performed under a lock will -not-
+ Sequences of operations performed under a lock will -not-
appear to be atomic to RCU readers, nor will sequences
of multiple atomic primitives.
@@ -168,8 +184,8 @@ over a rather long period of time, but improvements are always welcome!
5. If call_rcu(), or a related primitive such as call_rcu_bh(),
call_rcu_sched(), or call_srcu() is used, the callback function
- must be written to be called from softirq context. In particular,
- it cannot block.
+ will be called from softirq context. In particular, it cannot
+ block.
6. Since synchronize_rcu() can block, it cannot be called from
any sort of irq context. The same rule applies for
@@ -178,11 +194,14 @@ over a rather long period of time, but improvements are always welcome!
synchronize_sched_expedite(), and synchronize_srcu_expedited().
The expedited forms of these primitives have the same semantics
- as the non-expedited forms, but expediting is both expensive
- and unfriendly to real-time workloads. Use of the expedited
- primitives should be restricted to rare configuration-change
- operations that would not normally be undertaken while a real-time
- workload is running.
+ as the non-expedited forms, but expediting is both expensive and
+ (with the exception of synchronize_srcu_expedited()) unfriendly
+ to real-time workloads. Use of the expedited primitives should
+ be restricted to rare configuration-change operations that would
+ not normally be undertaken while a real-time workload is running.
+ However, real-time workloads can use rcupdate.rcu_normal kernel
+ boot parameter to completely disable expedited grace periods,
+ though this might have performance implications.
In particular, if you find yourself invoking one of the expedited
primitives repeatedly in a loop, please do everyone a favor:
@@ -193,11 +212,6 @@ over a rather long period of time, but improvements are always welcome!
of the system, especially to real-time workloads running on
the rest of the system.
- In addition, it is illegal to call the expedited forms from
- a CPU-hotplug notifier, or while holding a lock that is acquired
- by a CPU-hotplug notifier. Failing to observe this restriction
- will result in deadlock.
-
7. If the updater uses call_rcu() or synchronize_rcu(), then the
corresponding readers must use rcu_read_lock() and
rcu_read_unlock(). If the updater uses call_rcu_bh() or
@@ -321,7 +335,7 @@ over a rather long period of time, but improvements are always welcome!
Similarly, disabling preemption is not an acceptable substitute
for rcu_read_lock(). Code that attempts to use preemption
disabling where it should be using rcu_read_lock() will break
- in real-time kernel builds.
+ in CONFIG_PREEMPT=y kernel builds.
If you want to wait for interrupt handlers, NMI handlers, and
code under the influence of preempt_disable(), you instead
@@ -356,23 +370,22 @@ over a rather long period of time, but improvements are always welcome!
not the case, a self-spawning RCU callback would prevent the
victim CPU from ever going offline.)
-14. SRCU (srcu_read_lock(), srcu_read_unlock(), srcu_dereference(),
- synchronize_srcu(), synchronize_srcu_expedited(), and call_srcu())
- may only be invoked from process context. Unlike other forms of
- RCU, it -is- permissible to block in an SRCU read-side critical
- section (demarked by srcu_read_lock() and srcu_read_unlock()),
- hence the "SRCU": "sleepable RCU". Please note that if you
- don't need to sleep in read-side critical sections, you should be
- using RCU rather than SRCU, because RCU is almost always faster
- and easier to use than is SRCU.
-
- Also unlike other forms of RCU, explicit initialization
- and cleanup is required via init_srcu_struct() and
- cleanup_srcu_struct(). These are passed a "struct srcu_struct"
- that defines the scope of a given SRCU domain. Once initialized,
- the srcu_struct is passed to srcu_read_lock(), srcu_read_unlock()
- synchronize_srcu(), synchronize_srcu_expedited(), and call_srcu().
- A given synchronize_srcu() waits only for SRCU read-side critical
+14. Unlike other forms of RCU, it -is- permissible to block in an
+ SRCU read-side critical section (demarked by srcu_read_lock()
+ and srcu_read_unlock()), hence the "SRCU": "sleepable RCU".
+ Please note that if you don't need to sleep in read-side critical
+ sections, you should be using RCU rather than SRCU, because RCU
+ is almost always faster and easier to use than is SRCU.
+
+ Also unlike other forms of RCU, explicit initialization and
+ cleanup is required either at build time via DEFINE_SRCU()
+ or DEFINE_STATIC_SRCU() or at runtime via init_srcu_struct()
+ and cleanup_srcu_struct(). These last two are passed a
+ "struct srcu_struct" that defines the scope of a given
+ SRCU domain. Once initialized, the srcu_struct is passed
+ to srcu_read_lock(), srcu_read_unlock() synchronize_srcu(),
+ synchronize_srcu_expedited(), and call_srcu(). A given
+ synchronize_srcu() waits only for SRCU read-side critical
sections governed by srcu_read_lock() and srcu_read_unlock()
calls that have been passed the same srcu_struct. This property
is what makes sleeping read-side critical sections tolerable --
@@ -390,10 +403,16 @@ over a rather long period of time, but improvements are always welcome!
Therefore, SRCU should be used in preference to rw_semaphore
only in extremely read-intensive situations, or in situations
requiring SRCU's read-side deadlock immunity or low read-side
- realtime latency.
+ realtime latency. You should also consider percpu_rw_semaphore
+ when you need lightweight readers.
- Note that, rcu_assign_pointer() relates to SRCU just as it does
- to other forms of RCU.
+ SRCU's expedited primitive (synchronize_srcu_expedited())
+ never sends IPIs to other CPUs, so it is easier on
+ real-time workloads than is synchronize_rcu_expedited(),
+ synchronize_rcu_bh_expedited() or synchronize_sched_expedited().
+
+ Note that rcu_dereference() and rcu_assign_pointer() relate to
+ SRCU just as they do to other forms of RCU.
15. The whole point of call_rcu(), synchronize_rcu(), and friends
is to wait until all pre-existing readers have finished before
@@ -413,11 +432,11 @@ over a rather long period of time, but improvements are always welcome!
read-side critical sections. It is the responsibility of the
RCU update-side primitives to deal with this.
-17. Use CONFIG_PROVE_RCU, CONFIG_DEBUG_OBJECTS_RCU_HEAD, and the
- __rcu sparse checks (enabled by CONFIG_SPARSE_RCU_POINTER) to
- validate your RCU code. These can help find problems as follows:
+17. Use CONFIG_PROVE_LOCKING, CONFIG_DEBUG_OBJECTS_RCU_HEAD, and the
+ __rcu sparse checks to validate your RCU code. These can help
+ find problems as follows:
- CONFIG_PROVE_RCU: check that accesses to RCU-protected data
+ CONFIG_PROVE_LOCKING: check that accesses to RCU-protected data
structures are carried out under the proper RCU
read-side critical section, while holding the right
combination of locks, or whatever other conditions
@@ -435,3 +454,33 @@ over a rather long period of time, but improvements are always welcome!
These debugging aids can help you find problems that are
otherwise extremely difficult to spot.
+
+18. If you register a callback using call_rcu(), call_rcu_bh(),
+ call_rcu_sched(), or call_srcu(), and pass in a function defined
+ within a loadable module, then it in necessary to wait for
+ all pending callbacks to be invoked after the last invocation
+ and before unloading that module. Note that it is absolutely
+ -not- sufficient to wait for a grace period! The current (say)
+ synchronize_rcu() implementation waits only for all previous
+ callbacks registered on the CPU that synchronize_rcu() is running
+ on, but it is -not- guaranteed to wait for callbacks registered
+ on other CPUs.
+
+ You instead need to use one of the barrier functions:
+
+ o call_rcu() -> rcu_barrier()
+ o call_rcu_bh() -> rcu_barrier_bh()
+ o call_rcu_sched() -> rcu_barrier_sched()
+ o call_srcu() -> srcu_barrier()
+
+ However, these barrier functions are absolutely -not- guaranteed
+ to wait for a grace period. In fact, if there are no call_rcu()
+ callbacks waiting anywhere in the system, rcu_barrier() is within
+ its rights to return immediately.
+
+ So if you need to wait for both an RCU grace period and for
+ all pre-existing call_rcu() callbacks, you will need to execute
+ both rcu_barrier() and synchronize_rcu(), if necessary, using
+ something like workqueues to to execute them concurrently.
+
+ See rcubarrier.txt for more information.
diff --git a/Documentation/RCU/rcu.txt b/Documentation/RCU/rcu.txt
index 745f429fda79..7d4ae110c2c9 100644
--- a/Documentation/RCU/rcu.txt
+++ b/Documentation/RCU/rcu.txt
@@ -76,15 +76,12 @@ o I hear that RCU is patented? What is with that?
Of these, one was allowed to lapse by the assignee, and the
others have been contributed to the Linux kernel under GPL.
There are now also LGPL implementations of user-level RCU
- available (http://lttng.org/?q=node/18).
+ available (http://liburcu.org/).
o I hear that RCU needs work in order to support realtime kernels?
- This work is largely completed. Realtime-friendly RCU can be
- enabled via the CONFIG_PREEMPT_RCU kernel configuration
- parameter. However, work is in progress for enabling priority
- boosting of preempted RCU read-side critical sections. This is
- needed if you have CPU-bound realtime threads.
+ Realtime-friendly RCU can be enabled via the CONFIG_PREEMPT_RCU
+ kernel configuration parameter.
o Where can I find more information on RCU?
diff --git a/Documentation/RCU/rcu_dereference.txt b/Documentation/RCU/rcu_dereference.txt
index b2a613f16d74..1acb26b09b48 100644
--- a/Documentation/RCU/rcu_dereference.txt
+++ b/Documentation/RCU/rcu_dereference.txt
@@ -25,35 +25,35 @@ o You must use one of the rcu_dereference() family of primitives
for an example where the compiler can in fact deduce the exact
value of the pointer, and thus cause misordering.
+o You are only permitted to use rcu_dereference on pointer values.
+ The compiler simply knows too much about integral values to
+ trust it to carry dependencies through integer operations.
+ There are a very few exceptions, namely that you can temporarily
+ cast the pointer to uintptr_t in order to:
+
+ o Set bits and clear bits down in the must-be-zero low-order
+ bits of that pointer. This clearly means that the pointer
+ must have alignment constraints, for example, this does
+ -not- work in general for char* pointers.
+
+ o XOR bits to translate pointers, as is done in some
+ classic buddy-allocator algorithms.
+
+ It is important to cast the value back to pointer before
+ doing much of anything else with it.
+
o Avoid cancellation when using the "+" and "-" infix arithmetic
operators. For example, for a given variable "x", avoid
- "(x-x)". There are similar arithmetic pitfalls from other
- arithmetic operators, such as "(x*0)", "(x/(x+1))" or "(x%1)".
- The compiler is within its rights to substitute zero for all of
- these expressions, so that subsequent accesses no longer depend
- on the rcu_dereference(), again possibly resulting in bugs due
- to misordering.
+ "(x-(uintptr_t)x)" for char* pointers. The compiler is within its
+ rights to substitute zero for this sort of expression, so that
+ subsequent accesses no longer depend on the rcu_dereference(),
+ again possibly resulting in bugs due to misordering.
Of course, if "p" is a pointer from rcu_dereference(), and "a"
and "b" are integers that happen to be equal, the expression
"p+a-b" is safe because its value still necessarily depends on
the rcu_dereference(), thus maintaining proper ordering.
-o Avoid all-zero operands to the bitwise "&" operator, and
- similarly avoid all-ones operands to the bitwise "|" operator.
- If the compiler is able to deduce the value of such operands,
- it is within its rights to substitute the corresponding constant
- for the bitwise operation. Once again, this causes subsequent
- accesses to no longer depend on the rcu_dereference(), causing
- bugs due to misordering.
-
- Please note that single-bit operands to bitwise "&" can also
- be dangerous. At this point, the compiler knows that the
- resulting value can only take on one of two possible values.
- Therefore, a very small amount of additional information will
- allow the compiler to deduce the exact value, which again can
- result in misordering.
-
o If you are using RCU to protect JITed functions, so that the
"()" function-invocation operator is applied to a value obtained
(directly or indirectly) from rcu_dereference(), you may need to
@@ -61,25 +61,6 @@ o If you are using RCU to protect JITed functions, so that the
This issue arises on some systems when a newly JITed function is
using the same memory that was used by an earlier JITed function.
-o Do not use the results from the boolean "&&" and "||" when
- dereferencing. For example, the following (rather improbable)
- code is buggy:
-
- int *p;
- int *q;
-
- ...
-
- p = rcu_dereference(gp)
- q = &global_q;
- q += p != &oom_p1 && p != &oom_p2;
- r1 = *q; /* BUGGY!!! */
-
- The reason this is buggy is that "&&" and "||" are often compiled
- using branches. While weak-memory machines such as ARM or PowerPC
- do order stores after such branches, they can speculate loads,
- which can result in misordering bugs.
-
o Do not use the results from relational operators ("==", "!=",
">", ">=", "<", or "<=") when dereferencing. For example,
the following (quite strange) code is buggy:
diff --git a/Documentation/RCU/rcubarrier.txt b/Documentation/RCU/rcubarrier.txt
index b10cfe711e68..5d7759071a3e 100644
--- a/Documentation/RCU/rcubarrier.txt
+++ b/Documentation/RCU/rcubarrier.txt
@@ -263,6 +263,11 @@ Quick Quiz #2: What happens if CPU 0's rcu_barrier_func() executes
are delayed for a full grace period? Couldn't this result in
rcu_barrier() returning prematurely?
+The current rcu_barrier() implementation is more complex, due to the need
+to avoid disturbing idle CPUs (especially on battery-powered systems)
+and the need to minimally disturb non-idle CPUs in real-time systems.
+However, the code above illustrates the concepts.
+
rcu_barrier() Summary
diff --git a/Documentation/RCU/torture.txt b/Documentation/RCU/torture.txt
index 278f6a9383b6..55918b54808b 100644
--- a/Documentation/RCU/torture.txt
+++ b/Documentation/RCU/torture.txt
@@ -276,15 +276,17 @@ o "Free-Block Circulation": Shows the number of torture structures
somehow gets incremented farther than it should.
Different implementations of RCU can provide implementation-specific
-additional information. For example, SRCU provides the following
+additional information. For example, Tree SRCU provides the following
additional line:
- srcu-torture: per-CPU(idx=1): 0(0,1) 1(0,1) 2(0,0) 3(0,1)
+ srcud-torture: Tree SRCU per-CPU(idx=0): 0(35,-21) 1(-4,24) 2(1,1) 3(-26,20) 4(28,-47) 5(-9,4) 6(-10,14) 7(-14,11) T(1,6)
-This line shows the per-CPU counter state. The numbers in parentheses are
-the values of the "old" and "current" counters for the corresponding CPU.
-The "idx" value maps the "old" and "current" values to the underlying
-array, and is useful for debugging.
+This line shows the per-CPU counter state, in this case for Tree SRCU
+using a dynamically allocated srcu_struct (hence "srcud-" rather than
+"srcu-"). The numbers in parentheses are the values of the "old" and
+"current" counters for the corresponding CPU. The "idx" value maps the
+"old" and "current" values to the underlying array, and is useful for
+debugging. The final "T" entry contains the totals of the counters.
USAGE
@@ -304,3 +306,9 @@ checked for such errors. The "rmmod" command forces a "SUCCESS",
"FAILURE", or "RCU_HOTPLUG" indication to be printk()ed. The first
two are self-explanatory, while the last indicates that while there
were no RCU failures, CPU-hotplug problems were detected.
+
+However, the tools/testing/selftests/rcutorture/bin/kvm.sh script
+provides better automation, including automatic failure analysis.
+It assumes a qemu/kvm-enabled platform, and runs guest OSes out of initrd.
+See tools/testing/selftests/rcutorture/doc/initrd.txt for instructions
+on setting up such an initrd.
diff --git a/Documentation/RCU/trace.txt b/Documentation/RCU/trace.txt
deleted file mode 100644
index 6549012033f9..000000000000
--- a/Documentation/RCU/trace.txt
+++ /dev/null
@@ -1,535 +0,0 @@
-CONFIG_RCU_TRACE debugfs Files and Formats
-
-
-The rcutree and rcutiny implementations of RCU provide debugfs trace
-output that summarizes counters and state. This information is useful for
-debugging RCU itself, and can sometimes also help to debug abuses of RCU.
-The following sections describe the debugfs files and formats, first
-for rcutree and next for rcutiny.
-
-
-CONFIG_TREE_RCU and CONFIG_PREEMPT_RCU debugfs Files and Formats
-
-These implementations of RCU provide several debugfs directories under the
-top-level directory "rcu":
-
-rcu/rcu_bh
-rcu/rcu_preempt
-rcu/rcu_sched
-
-Each directory contains files for the corresponding flavor of RCU.
-Note that rcu/rcu_preempt is only present for CONFIG_PREEMPT_RCU.
-For CONFIG_TREE_RCU, the RCU flavor maps onto the RCU-sched flavor,
-so that activity for both appears in rcu/rcu_sched.
-
-In addition, the following file appears in the top-level directory:
-rcu/rcutorture. This file displays rcutorture test progress. The output
-of "cat rcu/rcutorture" looks as follows:
-
-rcutorture test sequence: 0 (test in progress)
-rcutorture update version number: 615
-
-The first line shows the number of rcutorture tests that have completed
-since boot. If a test is currently running, the "(test in progress)"
-string will appear as shown above. The second line shows the number of
-update cycles that the current test has started, or zero if there is
-no test in progress.
-
-
-Within each flavor directory (rcu/rcu_bh, rcu/rcu_sched, and possibly
-also rcu/rcu_preempt) the following files will be present:
-
-rcudata:
- Displays fields in struct rcu_data.
-rcuexp:
- Displays statistics for expedited grace periods.
-rcugp:
- Displays grace-period counters.
-rcuhier:
- Displays the struct rcu_node hierarchy.
-rcu_pending:
- Displays counts of the reasons rcu_pending() decided that RCU had
- work to do.
-rcuboost:
- Displays RCU boosting statistics. Only present if
- CONFIG_RCU_BOOST=y.
-
-The output of "cat rcu/rcu_preempt/rcudata" looks as follows:
-
- 0!c=30455 g=30456 cnq=1/0:1 dt=126535/140000000000000/0 df=2002 of=4 ql=0/0 qs=N... b=10 ci=74572 nci=0 co=1131 ca=716
- 1!c=30719 g=30720 cnq=1/0:0 dt=132007/140000000000000/0 df=1874 of=10 ql=0/0 qs=N... b=10 ci=123209 nci=0 co=685 ca=982
- 2!c=30150 g=30151 cnq=1/1:1 dt=138537/140000000000000/0 df=1707 of=8 ql=0/0 qs=N... b=10 ci=80132 nci=0 co=1328 ca=1458
- 3 c=31249 g=31250 cnq=1/1:0 dt=107255/140000000000000/0 df=1749 of=6 ql=0/450 qs=NRW. b=10 ci=151700 nci=0 co=509 ca=622
- 4!c=29502 g=29503 cnq=1/0:1 dt=83647/140000000000000/0 df=965 of=5 ql=0/0 qs=N... b=10 ci=65643 nci=0 co=1373 ca=1521
- 5 c=31201 g=31202 cnq=1/0:1 dt=70422/0/0 df=535 of=7 ql=0/0 qs=.... b=10 ci=58500 nci=0 co=764 ca=698
- 6!c=30253 g=30254 cnq=1/0:1 dt=95363/140000000000000/0 df=780 of=5 ql=0/0 qs=N... b=10 ci=100607 nci=0 co=1414 ca=1353
- 7 c=31178 g=31178 cnq=1/0:0 dt=91536/0/0 df=547 of=4 ql=0/0 qs=.... b=10 ci=109819 nci=0 co=1115 ca=969
-
-This file has one line per CPU, or eight for this 8-CPU system.
-The fields are as follows:
-
-o The number at the beginning of each line is the CPU number.
- CPUs numbers followed by an exclamation mark are offline,
- but have been online at least once since boot. There will be
- no output for CPUs that have never been online, which can be
- a good thing in the surprisingly common case where NR_CPUS is
- substantially larger than the number of actual CPUs.
-
-o "c" is the count of grace periods that this CPU believes have
- completed. Offlined CPUs and CPUs in dynticks idle mode may lag
- quite a ways behind, for example, CPU 4 under "rcu_sched" above,
- which has been offline through 16 RCU grace periods. It is not
- unusual to see offline CPUs lagging by thousands of grace periods.
- Note that although the grace-period number is an unsigned long,
- it is printed out as a signed long to allow more human-friendly
- representation near boot time.
-
-o "g" is the count of grace periods that this CPU believes have
- started. Again, offlined CPUs and CPUs in dynticks idle mode
- may lag behind. If the "c" and "g" values are equal, this CPU
- has already reported a quiescent state for the last RCU grace
- period that it is aware of, otherwise, the CPU believes that it
- owes RCU a quiescent state.
-
-o "pq" indicates that this CPU has passed through a quiescent state
- for the current grace period. It is possible for "pq" to be
- "1" and "c" different than "g", which indicates that although
- the CPU has passed through a quiescent state, either (1) this
- CPU has not yet reported that fact, (2) some other CPU has not
- yet reported for this grace period, or (3) both.
-
-o "qp" indicates that RCU still expects a quiescent state from
- this CPU. Offlined CPUs and CPUs in dyntick idle mode might
- well have qp=1, which is OK: RCU is still ignoring them.
-
-o "dt" is the current value of the dyntick counter that is incremented
- when entering or leaving idle, either due to a context switch or
- due to an interrupt. This number is even if the CPU is in idle
- from RCU's viewpoint and odd otherwise. The number after the
- first "/" is the interrupt nesting depth when in idle state,
- or a large number added to the interrupt-nesting depth when
- running a non-idle task. Some architectures do not accurately
- count interrupt nesting when running in non-idle kernel context,
- which can result in interesting anomalies such as negative
- interrupt-nesting levels. The number after the second "/"
- is the NMI nesting depth.
-
-o "df" is the number of times that some other CPU has forced a
- quiescent state on behalf of this CPU due to this CPU being in
- idle state.
-
-o "of" is the number of times that some other CPU has forced a
- quiescent state on behalf of this CPU due to this CPU being
- offline. In a perfect world, this might never happen, but it
- turns out that offlining and onlining a CPU can take several grace
- periods, and so there is likely to be an extended period of time
- when RCU believes that the CPU is online when it really is not.
- Please note that erring in the other direction (RCU believing a
- CPU is offline when it is really alive and kicking) is a fatal
- error, so it makes sense to err conservatively.
-
-o "ql" is the number of RCU callbacks currently residing on
- this CPU. The first number is the number of "lazy" callbacks
- that are known to RCU to only be freeing memory, and the number
- after the "/" is the total number of callbacks, lazy or not.
- These counters count callbacks regardless of what phase of
- grace-period processing that they are in (new, waiting for
- grace period to start, waiting for grace period to end, ready
- to invoke).
-
-o "qs" gives an indication of the state of the callback queue
- with four characters:
-
- "N" Indicates that there are callbacks queued that are not
- ready to be handled by the next grace period, and thus
- will be handled by the grace period following the next
- one.
-
- "R" Indicates that there are callbacks queued that are
- ready to be handled by the next grace period.
-
- "W" Indicates that there are callbacks queued that are
- waiting on the current grace period.
-
- "D" Indicates that there are callbacks queued that have
- already been handled by a prior grace period, and are
- thus waiting to be invoked. Note that callbacks in
- the process of being invoked are not counted here.
- Callbacks in the process of being invoked are those
- that have been removed from the rcu_data structures
- queues by rcu_do_batch(), but which have not yet been
- invoked.
-
- If there are no callbacks in a given one of the above states,
- the corresponding character is replaced by ".".
-
-o "b" is the batch limit for this CPU. If more than this number
- of RCU callbacks is ready to invoke, then the remainder will
- be deferred.
-
-o "ci" is the number of RCU callbacks that have been invoked for
- this CPU. Note that ci+nci+ql is the number of callbacks that have
- been registered in absence of CPU-hotplug activity.
-
-o "nci" is the number of RCU callbacks that have been offloaded from
- this CPU. This will always be zero unless the kernel was built
- with CONFIG_RCU_NOCB_CPU=y and the "rcu_nocbs=" kernel boot
- parameter was specified.
-
-o "co" is the number of RCU callbacks that have been orphaned due to
- this CPU going offline. These orphaned callbacks have been moved
- to an arbitrarily chosen online CPU.
-
-o "ca" is the number of RCU callbacks that have been adopted by this
- CPU due to other CPUs going offline. Note that ci+co-ca+ql is
- the number of RCU callbacks registered on this CPU.
-
-
-Kernels compiled with CONFIG_RCU_BOOST=y display the following from
-/debug/rcu/rcu_preempt/rcudata:
-
- 0!c=12865 g=12866 cnq=1/0:1 dt=83113/140000000000000/0 df=288 of=11 ql=0/0 qs=N... kt=0/O ktl=944 b=10 ci=60709 nci=0 co=748 ca=871
- 1 c=14407 g=14408 cnq=1/0:0 dt=100679/140000000000000/0 df=378 of=7 ql=0/119 qs=NRW. kt=0/W ktl=9b6 b=10 ci=109740 nci=0 co=589 ca=485
- 2 c=14407 g=14408 cnq=1/0:0 dt=105486/0/0 df=90 of=9 ql=0/89 qs=NRW. kt=0/W ktl=c0c b=10 ci=83113 nci=0 co=533 ca=490
- 3 c=14407 g=14408 cnq=1/0:0 dt=107138/0/0 df=142 of=8 ql=0/188 qs=NRW. kt=0/W ktl=b96 b=10 ci=121114 nci=0 co=426 ca=290
- 4 c=14405 g=14406 cnq=1/0:1 dt=50238/0/0 df=706 of=7 ql=0/0 qs=.... kt=0/W ktl=812 b=10 ci=34929 nci=0 co=643 ca=114
- 5!c=14168 g=14169 cnq=1/0:0 dt=45465/140000000000000/0 df=161 of=11 ql=0/0 qs=N... kt=0/O ktl=b4d b=10 ci=47712 nci=0 co=677 ca=722
- 6 c=14404 g=14405 cnq=1/0:0 dt=59454/0/0 df=94 of=6 ql=0/0 qs=.... kt=0/W ktl=e57 b=10 ci=55597 nci=0 co=701 ca=811
- 7 c=14407 g=14408 cnq=1/0:1 dt=68850/0/0 df=31 of=8 ql=0/0 qs=.... kt=0/W ktl=14bd b=10 ci=77475 nci=0 co=508 ca=1042
-
-This is similar to the output discussed above, but contains the following
-additional fields:
-
-o "kt" is the per-CPU kernel-thread state. The digit preceding
- the first slash is zero if there is no work pending and 1
- otherwise. The character between the first pair of slashes is
- as follows:
-
- "S" The kernel thread is stopped, in other words, all
- CPUs corresponding to this rcu_node structure are
- offline.
-
- "R" The kernel thread is running.
-
- "W" The kernel thread is waiting because there is no work
- for it to do.
-
- "O" The kernel thread is waiting because it has been
- forced off of its designated CPU or because its
- ->cpus_allowed mask permits it to run on other than
- its designated CPU.
-
- "Y" The kernel thread is yielding to avoid hogging CPU.
-
- "?" Unknown value, indicates a bug.
-
- The number after the final slash is the CPU that the kthread
- is actually running on.
-
- This field is displayed only for CONFIG_RCU_BOOST kernels.
-
-o "ktl" is the low-order 16 bits (in hexadecimal) of the count of
- the number of times that this CPU's per-CPU kthread has gone
- through its loop servicing invoke_rcu_cpu_kthread() requests.
-
- This field is displayed only for CONFIG_RCU_BOOST kernels.
-
-
-The output of "cat rcu/rcu_preempt/rcuexp" looks as follows:
-
-s=21872 wd1=0 wd2=0 wd3=5 enq=0 sc=21872
-
-These fields are as follows:
-
-o "s" is the sequence number, with an odd number indicating that
- an expedited grace period is in progress.
-
-o "wd1", "wd2", and "wd3" are the number of times that an attempt
- to start an expedited grace period found that someone else had
- completed an expedited grace period that satisfies the attempted
- request. "Our work is done."
-
-o "enq" is the number of quiescent states still outstanding.
-
-o "sc" is the number of times that the attempt to start a
- new expedited grace period succeeded.
-
-
-The output of "cat rcu/rcu_preempt/rcugp" looks as follows:
-
-completed=31249 gpnum=31250 age=1 max=18
-
-These fields are taken from the rcu_state structure, and are as follows:
-
-o "completed" is the number of grace periods that have completed.
- It is comparable to the "c" field from rcu/rcudata in that a
- CPU whose "c" field matches the value of "completed" is aware
- that the corresponding RCU grace period has completed.
-
-o "gpnum" is the number of grace periods that have started. It is
- similarly comparable to the "g" field from rcu/rcudata in that
- a CPU whose "g" field matches the value of "gpnum" is aware that
- the corresponding RCU grace period has started.
-
- If these two fields are equal, then there is no grace period
- in progress, in other words, RCU is idle. On the other hand,
- if the two fields differ (as they are above), then an RCU grace
- period is in progress.
-
-o "age" is the number of jiffies that the current grace period
- has extended for, or zero if there is no grace period currently
- in effect.
-
-o "max" is the age in jiffies of the longest-duration grace period
- thus far.
-
-The output of "cat rcu/rcu_preempt/rcuhier" looks as follows:
-
-c=14407 g=14408 s=0 jfq=2 j=c863 nfqs=12040/nfqsng=0(12040) fqlh=1051 oqlen=0/0
-3/3 ..>. 0:7 ^0
-e/e ..>. 0:3 ^0 d/d ..>. 4:7 ^1
-
-The fields are as follows:
-
-o "c" is exactly the same as "completed" under rcu/rcu_preempt/rcugp.
-
-o "g" is exactly the same as "gpnum" under rcu/rcu_preempt/rcugp.
-
-o "s" is the current state of the force_quiescent_state()
- state machine.
-
-o "jfq" is the number of jiffies remaining for this grace period
- before force_quiescent_state() is invoked to help push things
- along. Note that CPUs in idle mode throughout the grace period
- will not report on their own, but rather must be check by some
- other CPU via force_quiescent_state().
-
-o "j" is the low-order four hex digits of the jiffies counter.
- Yes, Paul did run into a number of problems that turned out to
- be due to the jiffies counter no longer counting. Why do you ask?
-
-o "nfqs" is the number of calls to force_quiescent_state() since
- boot.
-
-o "nfqsng" is the number of useless calls to force_quiescent_state(),
- where there wasn't actually a grace period active. This can
- no longer happen due to grace-period processing being pushed
- into a kthread. The number in parentheses is the difference
- between "nfqs" and "nfqsng", or the number of times that
- force_quiescent_state() actually did some real work.
-
-o "fqlh" is the number of calls to force_quiescent_state() that
- exited immediately (without even being counted in nfqs above)
- due to contention on ->fqslock.
-
-o Each element of the form "3/3 ..>. 0:7 ^0" represents one rcu_node
- structure. Each line represents one level of the hierarchy,
- from root to leaves. It is best to think of the rcu_data
- structures as forming yet another level after the leaves.
- Note that there might be either one, two, three, or even four
- levels of rcu_node structures, depending on the relationship
- between CONFIG_RCU_FANOUT, CONFIG_RCU_FANOUT_LEAF (possibly
- adjusted using the rcu_fanout_leaf kernel boot parameter), and
- CONFIG_NR_CPUS (possibly adjusted using the nr_cpu_ids count of
- possible CPUs for the booting hardware).
-
- o The numbers separated by the "/" are the qsmask followed
- by the qsmaskinit. The qsmask will have one bit
- set for each entity in the next lower level that has
- not yet checked in for the current grace period ("e"
- indicating CPUs 5, 6, and 7 in the example above).
- The qsmaskinit will have one bit for each entity that is
- currently expected to check in during each grace period.
- The value of qsmaskinit is assigned to that of qsmask
- at the beginning of each grace period.
-
- o The characters separated by the ">" indicate the state
- of the blocked-tasks lists. A "G" preceding the ">"
- indicates that at least one task blocked in an RCU
- read-side critical section blocks the current grace
- period, while a "E" preceding the ">" indicates that
- at least one task blocked in an RCU read-side critical
- section blocks the current expedited grace period.
- A "T" character following the ">" indicates that at
- least one task is blocked within an RCU read-side
- critical section, regardless of whether any current
- grace period (expedited or normal) is inconvenienced.
- A "." character appears if the corresponding condition
- does not hold, so that "..>." indicates that no tasks
- are blocked. In contrast, "GE>T" indicates maximal
- inconvenience from blocked tasks. CONFIG_TREE_RCU
- builds of the kernel will always show "..>.".
-
- o The numbers separated by the ":" are the range of CPUs
- served by this struct rcu_node. This can be helpful
- in working out how the hierarchy is wired together.
-
- For example, the example rcu_node structure shown above
- has "0:7", indicating that it covers CPUs 0 through 7.
-
- o The number after the "^" indicates the bit in the
- next higher level rcu_node structure that this rcu_node
- structure corresponds to. For example, the "d/d ..>. 4:7
- ^1" has a "1" in this position, indicating that it
- corresponds to the "1" bit in the "3" shown in the
- "3/3 ..>. 0:7 ^0" entry on the next level up.
-
-
-The output of "cat rcu/rcu_sched/rcu_pending" looks as follows:
-
- 0!np=26111 qsp=29 rpq=5386 cbr=1 cng=570 gpc=3674 gps=577 nn=15903 ndw=0
- 1!np=28913 qsp=35 rpq=6097 cbr=1 cng=448 gpc=3700 gps=554 nn=18113 ndw=0
- 2!np=32740 qsp=37 rpq=6202 cbr=0 cng=476 gpc=4627 gps=546 nn=20889 ndw=0
- 3 np=23679 qsp=22 rpq=5044 cbr=1 cng=415 gpc=3403 gps=347 nn=14469 ndw=0
- 4!np=30714 qsp=4 rpq=5574 cbr=0 cng=528 gpc=3931 gps=639 nn=20042 ndw=0
- 5 np=28910 qsp=2 rpq=5246 cbr=0 cng=428 gpc=4105 gps=709 nn=18422 ndw=0
- 6!np=38648 qsp=5 rpq=7076 cbr=0 cng=840 gpc=4072 gps=961 nn=25699 ndw=0
- 7 np=37275 qsp=2 rpq=6873 cbr=0 cng=868 gpc=3416 gps=971 nn=25147 ndw=0
-
-The fields are as follows:
-
-o The leading number is the CPU number, with "!" indicating
- an offline CPU.
-
-o "np" is the number of times that __rcu_pending() has been invoked
- for the corresponding flavor of RCU.
-
-o "qsp" is the number of times that the RCU was waiting for a
- quiescent state from this CPU.
-
-o "rpq" is the number of times that the CPU had passed through
- a quiescent state, but not yet reported it to RCU.
-
-o "cbr" is the number of times that this CPU had RCU callbacks
- that had passed through a grace period, and were thus ready
- to be invoked.
-
-o "cng" is the number of times that this CPU needed another
- grace period while RCU was idle.
-
-o "gpc" is the number of times that an old grace period had
- completed, but this CPU was not yet aware of it.
-
-o "gps" is the number of times that a new grace period had started,
- but this CPU was not yet aware of it.
-
-o "ndw" is the number of times that a wakeup of an rcuo
- callback-offload kthread had to be deferred in order to avoid
- deadlock.
-
-o "nn" is the number of times that this CPU needed nothing.
-
-
-The output of "cat rcu/rcuboost" looks as follows:
-
-0:3 tasks=.... kt=W ntb=0 neb=0 nnb=0 j=c864 bt=c894
- balk: nt=0 egt=4695 bt=0 nb=0 ny=56 nos=0
-4:7 tasks=.... kt=W ntb=0 neb=0 nnb=0 j=c864 bt=c894
- balk: nt=0 egt=6541 bt=0 nb=0 ny=126 nos=0
-
-This information is output only for rcu_preempt. Each two-line entry
-corresponds to a leaf rcu_node structure. The fields are as follows:
-
-o "n:m" is the CPU-number range for the corresponding two-line
- entry. In the sample output above, the first entry covers
- CPUs zero through three and the second entry covers CPUs four
- through seven.
-
-o "tasks=TNEB" gives the state of the various segments of the
- rnp->blocked_tasks list:
-
- "T" This indicates that there are some tasks that blocked
- while running on one of the corresponding CPUs while
- in an RCU read-side critical section.
-
- "N" This indicates that some of the blocked tasks are preventing
- the current normal (non-expedited) grace period from
- completing.
-
- "E" This indicates that some of the blocked tasks are preventing
- the current expedited grace period from completing.
-
- "B" This indicates that some of the blocked tasks are in
- need of RCU priority boosting.
-
- Each character is replaced with "." if the corresponding
- condition does not hold.
-
-o "kt" is the state of the RCU priority-boosting kernel
- thread associated with the corresponding rcu_node structure.
- The state can be one of the following:
-
- "S" The kernel thread is stopped, in other words, all
- CPUs corresponding to this rcu_node structure are
- offline.
-
- "R" The kernel thread is running.
-
- "W" The kernel thread is waiting because there is no work
- for it to do.
-
- "Y" The kernel thread is yielding to avoid hogging CPU.
-
- "?" Unknown value, indicates a bug.
-
-o "ntb" is the number of tasks boosted.
-
-o "neb" is the number of tasks boosted in order to complete an
- expedited grace period.
-
-o "nnb" is the number of tasks boosted in order to complete a
- normal (non-expedited) grace period. When boosting a task
- that was blocking both an expedited and a normal grace period,
- it is counted against the expedited total above.
-
-o "j" is the low-order 16 bits of the jiffies counter in
- hexadecimal.
-
-o "bt" is the low-order 16 bits of the value that the jiffies
- counter will have when we next start boosting, assuming that
- the current grace period does not end beforehand. This is
- also in hexadecimal.
-
-o "balk: nt" counts the number of times we didn't boost (in
- other words, we balked) even though it was time to boost because
- there were no blocked tasks to boost. This situation occurs
- when there is one blocked task on one rcu_node structure and
- none on some other rcu_node structure.
-
-o "egt" counts the number of times we balked because although
- there were blocked tasks, none of them were blocking the
- current grace period, whether expedited or otherwise.
-
-o "bt" counts the number of times we balked because boosting
- had already been initiated for the current grace period.
-
-o "nb" counts the number of times we balked because there
- was at least one task blocking the current non-expedited grace
- period that never had blocked. If it is already running, it
- just won't help to boost its priority!
-
-o "ny" counts the number of times we balked because it was
- not yet time to start boosting.
-
-o "nos" counts the number of times we balked for other
- reasons, e.g., the grace period ended first.
-
-
-CONFIG_TINY_RCU debugfs Files and Formats
-
-These implementations of RCU provides a single debugfs file under the
-top-level directory RCU, namely rcu/rcudata, which displays fields in
-rcu_bh_ctrlblk and rcu_sched_ctrlblk.
-
-The output of "cat rcu/rcudata" is as follows:
-
-rcu_sched: qlen: 0
-rcu_bh: qlen: 0
-
-This is split into rcu_sched and rcu_bh sections. The field is as
-follows:
-
-o "qlen" is the number of RCU callbacks currently waiting either
- for an RCU grace period or waiting to be invoked. This is the
- only field present for rcu_sched and rcu_bh, due to the
- short-circuiting of grace period in those two cases.
diff --git a/Documentation/RCU/whatisRCU.txt b/Documentation/RCU/whatisRCU.txt
index 8ed6c9f6133c..df62466da4e0 100644
--- a/Documentation/RCU/whatisRCU.txt
+++ b/Documentation/RCU/whatisRCU.txt
@@ -890,6 +890,8 @@ SRCU: Critical sections Grace period Barrier
srcu_read_lock_held
SRCU: Initialization/cleanup
+ DEFINE_SRCU
+ DEFINE_STATIC_SRCU
init_srcu_struct
cleanup_srcu_struct
@@ -913,7 +915,8 @@ a. Will readers need to block? If so, you need SRCU.
b. What about the -rt patchset? If readers would need to block
in an non-rt kernel, you need SRCU. If readers would block
in a -rt kernel, but not in a non-rt kernel, SRCU is not
- necessary.
+ necessary. (The -rt patchset turns spinlocks into sleeplocks,
+ hence this distinction.)
c. Do you need to treat NMI handlers, hardirq handlers,
and code segments with preemption disabled (whether
diff --git a/Documentation/SAK.txt b/Documentation/SAK.txt
index 74be14679ed8..260e1d3687bd 100644
--- a/Documentation/SAK.txt
+++ b/Documentation/SAK.txt
@@ -1,5 +1,9 @@
-Linux 2.4.2 Secure Attention Key (SAK) handling
-18 March 2001, Andrew Morton
+=========================================
+Linux Secure Attention Key (SAK) handling
+=========================================
+
+:Date: 18 March 2001
+:Author: Andrew Morton
An operating system's Secure Attention Key is a security tool which is
provided as protection against trojan password capturing programs. It
@@ -13,7 +17,7 @@ this sequence. It is only available if the kernel was compiled with
sysrq support.
The proper way of generating a SAK is to define the key sequence using
-`loadkeys'. This will work whether or not sysrq support is compiled
+``loadkeys``. This will work whether or not sysrq support is compiled
into the kernel.
SAK works correctly when the keyboard is in raw mode. This means that
@@ -25,64 +29,63 @@ What key sequence should you use? Well, CTRL-ALT-DEL is used to reboot
the machine. CTRL-ALT-BACKSPACE is magical to the X server. We'll
choose CTRL-ALT-PAUSE.
-In your rc.sysinit (or rc.local) file, add the command
+In your rc.sysinit (or rc.local) file, add the command::
echo "control alt keycode 101 = SAK" | /bin/loadkeys
And that's it! Only the superuser may reprogram the SAK key.
-NOTES
-=====
+.. note::
-1: Linux SAK is said to be not a "true SAK" as is required by
- systems which implement C2 level security. This author does not
- know why.
+ 1. Linux SAK is said to be not a "true SAK" as is required by
+ systems which implement C2 level security. This author does not
+ know why.
-2: On the PC keyboard, SAK kills all applications which have
- /dev/console opened.
+ 2. On the PC keyboard, SAK kills all applications which have
+ /dev/console opened.
- Unfortunately this includes a number of things which you don't
- actually want killed. This is because these applications are
- incorrectly holding /dev/console open. Be sure to complain to your
- Linux distributor about this!
+ Unfortunately this includes a number of things which you don't
+ actually want killed. This is because these applications are
+ incorrectly holding /dev/console open. Be sure to complain to your
+ Linux distributor about this!
- You can identify processes which will be killed by SAK with the
- command
+ You can identify processes which will be killed by SAK with the
+ command::
# ls -l /proc/[0-9]*/fd/* | grep console
l-wx------ 1 root root 64 Mar 18 00:46 /proc/579/fd/0 -> /dev/console
- Then:
+ Then::
# ps aux|grep 579
root 579 0.0 0.1 1088 436 ? S 00:43 0:00 gpm -t ps/2
- So `gpm' will be killed by SAK. This is a bug in gpm. It should
- be closing standard input. You can work around this by finding the
- initscript which launches gpm and changing it thusly:
+ So ``gpm`` will be killed by SAK. This is a bug in gpm. It should
+ be closing standard input. You can work around this by finding the
+ initscript which launches gpm and changing it thusly:
- Old:
+ Old::
daemon gpm
- New:
+ New::
daemon gpm < /dev/null
- Vixie cron also seems to have this problem, and needs the same treatment.
+ Vixie cron also seems to have this problem, and needs the same treatment.
- Also, one prominent Linux distribution has the following three
- lines in its rc.sysinit and rc scripts:
+ Also, one prominent Linux distribution has the following three
+ lines in its rc.sysinit and rc scripts::
exec 3<&0
exec 4>&1
exec 5>&2
- These commands cause *all* daemons which are launched by the
- initscripts to have file descriptors 3, 4 and 5 attached to
- /dev/console. So SAK kills them all. A workaround is to simply
- delete these lines, but this may cause system management
- applications to malfunction - test everything well.
+ These commands cause **all** daemons which are launched by the
+ initscripts to have file descriptors 3, 4 and 5 attached to
+ /dev/console. So SAK kills them all. A workaround is to simply
+ delete these lines, but this may cause system management
+ applications to malfunction - test everything well.
diff --git a/Documentation/SM501.txt b/Documentation/SM501.txt
index 561826f82093..882507453ba4 100644
--- a/Documentation/SM501.txt
+++ b/Documentation/SM501.txt
@@ -1,7 +1,10 @@
- SM501 Driver
- ============
+.. include:: <isonum.txt>
-Copyright 2006, 2007 Simtec Electronics
+============
+SM501 Driver
+============
+
+:Copyright: |copy| 2006, 2007 Simtec Electronics
The Silicon Motion SM501 multimedia companion chip is a multifunction device
which may provide numerous interfaces including USB host controller USB gadget,
diff --git a/Documentation/acpi/gpio-properties.txt b/Documentation/acpi/gpio-properties.txt
index 2aff0349facd..88c65cb5bf0a 100644
--- a/Documentation/acpi/gpio-properties.txt
+++ b/Documentation/acpi/gpio-properties.txt
@@ -156,3 +156,68 @@ pointed to by its first argument. That should be done in the driver's .probe()
routine. On removal, the driver should unregister its GPIO mapping table by
calling acpi_dev_remove_driver_gpios() on the ACPI device object where that
table was previously registered.
+
+Using the _CRS fallback
+-----------------------
+
+If a device does not have _DSD or the driver does not create ACPI GPIO
+mapping, the Linux GPIO framework refuses to return any GPIOs. This is
+because the driver does not know what it actually gets. For example if we
+have a device like below:
+
+ Device (BTH)
+ {
+ Name (_HID, ...)
+
+ Name (_CRS, ResourceTemplate () {
+ GpioIo (Exclusive, PullNone, 0, 0, IoRestrictionNone,
+ "\\_SB.GPO0", 0, ResourceConsumer) {15}
+ GpioIo (Exclusive, PullNone, 0, 0, IoRestrictionNone,
+ "\\_SB.GPO0", 0, ResourceConsumer) {27}
+ })
+ }
+
+The driver might expect to get the right GPIO when it does:
+
+ desc = gpiod_get(dev, "reset", GPIOD_OUT_LOW);
+
+but since there is no way to know the mapping between "reset" and
+the GpioIo() in _CRS desc will hold ERR_PTR(-ENOENT).
+
+The driver author can solve this by passing the mapping explictly
+(the recommended way and documented in the above chapter).
+
+The ACPI GPIO mapping tables should not contaminate drivers that are not
+knowing about which exact device they are servicing on. It implies that
+the ACPI GPIO mapping tables are hardly linked to ACPI ID and certain
+objects, as listed in the above chapter, of the device in question.
+
+Getting GPIO descriptor
+-----------------------
+
+There are two main approaches to get GPIO resource from ACPI:
+ desc = gpiod_get(dev, connection_id, flags);
+ desc = gpiod_get_index(dev, connection_id, index, flags);
+
+We may consider two different cases here, i.e. when connection ID is
+provided and otherwise.
+
+Case 1:
+ desc = gpiod_get(dev, "non-null-connection-id", flags);
+ desc = gpiod_get_index(dev, "non-null-connection-id", index, flags);
+
+Case 2:
+ desc = gpiod_get(dev, NULL, flags);
+ desc = gpiod_get_index(dev, NULL, index, flags);
+
+Case 1 assumes that corresponding ACPI device description must have
+defined device properties and will prevent to getting any GPIO resources
+otherwise.
+
+Case 2 explicitly tells GPIO core to look for resources in _CRS.
+
+Be aware that gpiod_get_index() in cases 1 and 2, assuming that there
+are two versions of ACPI device description provided and no mapping is
+present in the driver, will return different resources. That's why a
+certain driver has to handle them carefully as explained in previous
+chapter.
diff --git a/Documentation/admin-guide/LSM/LoadPin.rst b/Documentation/admin-guide/LSM/LoadPin.rst
new file mode 100644
index 000000000000..32070762d24c
--- /dev/null
+++ b/Documentation/admin-guide/LSM/LoadPin.rst
@@ -0,0 +1,21 @@
+=======
+LoadPin
+=======
+
+LoadPin is a Linux Security Module that ensures all kernel-loaded files
+(modules, firmware, etc) all originate from the same filesystem, with
+the expectation that such a filesystem is backed by a read-only device
+such as dm-verity or CDROM. This allows systems that have a verified
+and/or unchangeable filesystem to enforce module and firmware loading
+restrictions without needing to sign the files individually.
+
+The LSM is selectable at build-time with ``CONFIG_SECURITY_LOADPIN``, and
+can be controlled at boot-time with the kernel command line option
+"``loadpin.enabled``". By default, it is enabled, but can be disabled at
+boot ("``loadpin.enabled=0``").
+
+LoadPin starts pinning when it sees the first file loaded. If the
+block device backing the filesystem is not read-only, a sysctl is
+created to toggle pinning: ``/proc/sys/kernel/loadpin/enabled``. (Having
+a mutable filesystem means pinning is mutable too, but having the
+sysctl allows for easy testing on systems with a mutable filesystem.)
diff --git a/Documentation/admin-guide/LSM/SELinux.rst b/Documentation/admin-guide/LSM/SELinux.rst
new file mode 100644
index 000000000000..f722c9b4173a
--- /dev/null
+++ b/Documentation/admin-guide/LSM/SELinux.rst
@@ -0,0 +1,33 @@
+=======
+SELinux
+=======
+
+If you want to use SELinux, chances are you will want
+to use the distro-provided policies, or install the
+latest reference policy release from
+
+ http://oss.tresys.com/projects/refpolicy
+
+However, if you want to install a dummy policy for
+testing, you can do using ``mdp`` provided under
+scripts/selinux. Note that this requires the selinux
+userspace to be installed - in particular you will
+need checkpolicy to compile a kernel, and setfiles and
+fixfiles to label the filesystem.
+
+ 1. Compile the kernel with selinux enabled.
+ 2. Type ``make`` to compile ``mdp``.
+ 3. Make sure that you are not running with
+ SELinux enabled and a real policy. If
+ you are, reboot with selinux disabled
+ before continuing.
+ 4. Run install_policy.sh::
+
+ cd scripts/selinux
+ sh install_policy.sh
+
+Step 4 will create a new dummy policy valid for your
+kernel, with a single selinux user, role, and type.
+It will compile the policy, will set your ``SELINUXTYPE`` to
+``dummy`` in ``/etc/selinux/config``, install the compiled policy
+as ``dummy``, and relabel your filesystem.
diff --git a/Documentation/admin-guide/LSM/Smack.rst b/Documentation/admin-guide/LSM/Smack.rst
new file mode 100644
index 000000000000..6a5826a13aea
--- /dev/null
+++ b/Documentation/admin-guide/LSM/Smack.rst
@@ -0,0 +1,857 @@
+=====
+Smack
+=====
+
+
+ "Good for you, you've decided to clean the elevator!"
+ - The Elevator, from Dark Star
+
+Smack is the Simplified Mandatory Access Control Kernel.
+Smack is a kernel based implementation of mandatory access
+control that includes simplicity in its primary design goals.
+
+Smack is not the only Mandatory Access Control scheme
+available for Linux. Those new to Mandatory Access Control
+are encouraged to compare Smack with the other mechanisms
+available to determine which is best suited to the problem
+at hand.
+
+Smack consists of three major components:
+
+ - The kernel
+ - Basic utilities, which are helpful but not required
+ - Configuration data
+
+The kernel component of Smack is implemented as a Linux
+Security Modules (LSM) module. It requires netlabel and
+works best with file systems that support extended attributes,
+although xattr support is not strictly required.
+It is safe to run a Smack kernel under a "vanilla" distribution.
+
+Smack kernels use the CIPSO IP option. Some network
+configurations are intolerant of IP options and can impede
+access to systems that use them as Smack does.
+
+Smack is used in the Tizen operating system. Please
+go to http://wiki.tizen.org for information about how
+Smack is used in Tizen.
+
+The current git repository for Smack user space is:
+
+ git://github.com/smack-team/smack.git
+
+This should make and install on most modern distributions.
+There are five commands included in smackutil:
+
+chsmack:
+ display or set Smack extended attribute values
+
+smackctl:
+ load the Smack access rules
+
+smackaccess:
+ report if a process with one label has access
+ to an object with another
+
+These two commands are obsolete with the introduction of
+the smackfs/load2 and smackfs/cipso2 interfaces.
+
+smackload:
+ properly formats data for writing to smackfs/load
+
+smackcipso:
+ properly formats data for writing to smackfs/cipso
+
+In keeping with the intent of Smack, configuration data is
+minimal and not strictly required. The most important
+configuration step is mounting the smackfs pseudo filesystem.
+If smackutil is installed the startup script will take care
+of this, but it can be manually as well.
+
+Add this line to ``/etc/fstab``::
+
+ smackfs /sys/fs/smackfs smackfs defaults 0 0
+
+The ``/sys/fs/smackfs`` directory is created by the kernel.
+
+Smack uses extended attributes (xattrs) to store labels on filesystem
+objects. The attributes are stored in the extended attribute security
+name space. A process must have ``CAP_MAC_ADMIN`` to change any of these
+attributes.
+
+The extended attributes that Smack uses are:
+
+SMACK64
+ Used to make access control decisions. In almost all cases
+ the label given to a new filesystem object will be the label
+ of the process that created it.
+
+SMACK64EXEC
+ The Smack label of a process that execs a program file with
+ this attribute set will run with this attribute's value.
+
+SMACK64MMAP
+ Don't allow the file to be mmapped by a process whose Smack
+ label does not allow all of the access permitted to a process
+ with the label contained in this attribute. This is a very
+ specific use case for shared libraries.
+
+SMACK64TRANSMUTE
+ Can only have the value "TRUE". If this attribute is present
+ on a directory when an object is created in the directory and
+ the Smack rule (more below) that permitted the write access
+ to the directory includes the transmute ("t") mode the object
+ gets the label of the directory instead of the label of the
+ creating process. If the object being created is a directory
+ the SMACK64TRANSMUTE attribute is set as well.
+
+SMACK64IPIN
+ This attribute is only available on file descriptors for sockets.
+ Use the Smack label in this attribute for access control
+ decisions on packets being delivered to this socket.
+
+SMACK64IPOUT
+ This attribute is only available on file descriptors for sockets.
+ Use the Smack label in this attribute for access control
+ decisions on packets coming from this socket.
+
+There are multiple ways to set a Smack label on a file::
+
+ # attr -S -s SMACK64 -V "value" path
+ # chsmack -a value path
+
+A process can see the Smack label it is running with by
+reading ``/proc/self/attr/current``. A process with ``CAP_MAC_ADMIN``
+can set the process Smack by writing there.
+
+Most Smack configuration is accomplished by writing to files
+in the smackfs filesystem. This pseudo-filesystem is mounted
+on ``/sys/fs/smackfs``.
+
+access
+ Provided for backward compatibility. The access2 interface
+ is preferred and should be used instead.
+ This interface reports whether a subject with the specified
+ Smack label has a particular access to an object with a
+ specified Smack label. Write a fixed format access rule to
+ this file. The next read will indicate whether the access
+ would be permitted. The text will be either "1" indicating
+ access, or "0" indicating denial.
+
+access2
+ This interface reports whether a subject with the specified
+ Smack label has a particular access to an object with a
+ specified Smack label. Write a long format access rule to
+ this file. The next read will indicate whether the access
+ would be permitted. The text will be either "1" indicating
+ access, or "0" indicating denial.
+
+ambient
+ This contains the Smack label applied to unlabeled network
+ packets.
+
+change-rule
+ This interface allows modification of existing access control rules.
+ The format accepted on write is::
+
+ "%s %s %s %s"
+
+ where the first string is the subject label, the second the
+ object label, the third the access to allow and the fourth the
+ access to deny. The access strings may contain only the characters
+ "rwxat-". If a rule for a given subject and object exists it will be
+ modified by enabling the permissions in the third string and disabling
+ those in the fourth string. If there is no such rule it will be
+ created using the access specified in the third and the fourth strings.
+
+cipso
+ Provided for backward compatibility. The cipso2 interface
+ is preferred and should be used instead.
+ This interface allows a specific CIPSO header to be assigned
+ to a Smack label. The format accepted on write is::
+
+ "%24s%4d%4d"["%4d"]...
+
+ The first string is a fixed Smack label. The first number is
+ the level to use. The second number is the number of categories.
+ The following numbers are the categories::
+
+ "level-3-cats-5-19 3 2 5 19"
+
+cipso2
+ This interface allows a specific CIPSO header to be assigned
+ to a Smack label. The format accepted on write is::
+
+ "%s%4d%4d"["%4d"]...
+
+ The first string is a long Smack label. The first number is
+ the level to use. The second number is the number of categories.
+ The following numbers are the categories::
+
+ "level-3-cats-5-19 3 2 5 19"
+
+direct
+ This contains the CIPSO level used for Smack direct label
+ representation in network packets.
+
+doi
+ This contains the CIPSO domain of interpretation used in
+ network packets.
+
+ipv6host
+ This interface allows specific IPv6 internet addresses to be
+ treated as single label hosts. Packets are sent to single
+ label hosts only from processes that have Smack write access
+ to the host label. All packets received from single label hosts
+ are given the specified label. The format accepted on write is::
+
+ "%h:%h:%h:%h:%h:%h:%h:%h label" or
+ "%h:%h:%h:%h:%h:%h:%h:%h/%d label".
+
+ The "::" address shortcut is not supported.
+ If label is "-DELETE" a matched entry will be deleted.
+
+load
+ Provided for backward compatibility. The load2 interface
+ is preferred and should be used instead.
+ This interface allows access control rules in addition to
+ the system defined rules to be specified. The format accepted
+ on write is::
+
+ "%24s%24s%5s"
+
+ where the first string is the subject label, the second the
+ object label, and the third the requested access. The access
+ string may contain only the characters "rwxat-", and specifies
+ which sort of access is allowed. The "-" is a placeholder for
+ permissions that are not allowed. The string "r-x--" would
+ specify read and execute access. Labels are limited to 23
+ characters in length.
+
+load2
+ This interface allows access control rules in addition to
+ the system defined rules to be specified. The format accepted
+ on write is::
+
+ "%s %s %s"
+
+ where the first string is the subject label, the second the
+ object label, and the third the requested access. The access
+ string may contain only the characters "rwxat-", and specifies
+ which sort of access is allowed. The "-" is a placeholder for
+ permissions that are not allowed. The string "r-x--" would
+ specify read and execute access.
+
+load-self
+ Provided for backward compatibility. The load-self2 interface
+ is preferred and should be used instead.
+ This interface allows process specific access rules to be
+ defined. These rules are only consulted if access would
+ otherwise be permitted, and are intended to provide additional
+ restrictions on the process. The format is the same as for
+ the load interface.
+
+load-self2
+ This interface allows process specific access rules to be
+ defined. These rules are only consulted if access would
+ otherwise be permitted, and are intended to provide additional
+ restrictions on the process. The format is the same as for
+ the load2 interface.
+
+logging
+ This contains the Smack logging state.
+
+mapped
+ This contains the CIPSO level used for Smack mapped label
+ representation in network packets.
+
+netlabel
+ This interface allows specific internet addresses to be
+ treated as single label hosts. Packets are sent to single
+ label hosts without CIPSO headers, but only from processes
+ that have Smack write access to the host label. All packets
+ received from single label hosts are given the specified
+ label. The format accepted on write is::
+
+ "%d.%d.%d.%d label" or "%d.%d.%d.%d/%d label".
+
+ If the label specified is "-CIPSO" the address is treated
+ as a host that supports CIPSO headers.
+
+onlycap
+ This contains labels processes must have for CAP_MAC_ADMIN
+ and ``CAP_MAC_OVERRIDE`` to be effective. If this file is empty
+ these capabilities are effective at for processes with any
+ label. The values are set by writing the desired labels, separated
+ by spaces, to the file or cleared by writing "-" to the file.
+
+ptrace
+ This is used to define the current ptrace policy
+
+ 0 - default:
+ this is the policy that relies on Smack access rules.
+ For the ``PTRACE_READ`` a subject needs to have a read access on
+ object. For the ``PTRACE_ATTACH`` a read-write access is required.
+
+ 1 - exact:
+ this is the policy that limits ``PTRACE_ATTACH``. Attach is
+ only allowed when subject's and object's labels are equal.
+ ``PTRACE_READ`` is not affected. Can be overridden with ``CAP_SYS_PTRACE``.
+
+ 2 - draconian:
+ this policy behaves like the 'exact' above with an
+ exception that it can't be overridden with ``CAP_SYS_PTRACE``.
+
+revoke-subject
+ Writing a Smack label here sets the access to '-' for all access
+ rules with that subject label.
+
+unconfined
+ If the kernel is configured with ``CONFIG_SECURITY_SMACK_BRINGUP``
+ a process with ``CAP_MAC_ADMIN`` can write a label into this interface.
+ Thereafter, accesses that involve that label will be logged and
+ the access permitted if it wouldn't be otherwise. Note that this
+ is dangerous and can ruin the proper labeling of your system.
+ It should never be used in production.
+
+relabel-self
+ This interface contains a list of labels to which the process can
+ transition to, by writing to ``/proc/self/attr/current``.
+ Normally a process can change its own label to any legal value, but only
+ if it has ``CAP_MAC_ADMIN``. This interface allows a process without
+ ``CAP_MAC_ADMIN`` to relabel itself to one of labels from predefined list.
+ A process without ``CAP_MAC_ADMIN`` can change its label only once. When it
+ does, this list will be cleared.
+ The values are set by writing the desired labels, separated
+ by spaces, to the file or cleared by writing "-" to the file.
+
+If you are using the smackload utility
+you can add access rules in ``/etc/smack/accesses``. They take the form::
+
+ subjectlabel objectlabel access
+
+access is a combination of the letters rwxatb which specify the
+kind of access permitted a subject with subjectlabel on an
+object with objectlabel. If there is no rule no access is allowed.
+
+Look for additional programs on http://schaufler-ca.com
+
+The Simplified Mandatory Access Control Kernel (Whitepaper)
+===========================================================
+
+Casey Schaufler
+casey@schaufler-ca.com
+
+Mandatory Access Control
+------------------------
+
+Computer systems employ a variety of schemes to constrain how information is
+shared among the people and services using the machine. Some of these schemes
+allow the program or user to decide what other programs or users are allowed
+access to pieces of data. These schemes are called discretionary access
+control mechanisms because the access control is specified at the discretion
+of the user. Other schemes do not leave the decision regarding what a user or
+program can access up to users or programs. These schemes are called mandatory
+access control mechanisms because you don't have a choice regarding the users
+or programs that have access to pieces of data.
+
+Bell & LaPadula
+---------------
+
+From the middle of the 1980's until the turn of the century Mandatory Access
+Control (MAC) was very closely associated with the Bell & LaPadula security
+model, a mathematical description of the United States Department of Defense
+policy for marking paper documents. MAC in this form enjoyed a following
+within the Capital Beltway and Scandinavian supercomputer centers but was
+often sited as failing to address general needs.
+
+Domain Type Enforcement
+-----------------------
+
+Around the turn of the century Domain Type Enforcement (DTE) became popular.
+This scheme organizes users, programs, and data into domains that are
+protected from each other. This scheme has been widely deployed as a component
+of popular Linux distributions. The administrative overhead required to
+maintain this scheme and the detailed understanding of the whole system
+necessary to provide a secure domain mapping leads to the scheme being
+disabled or used in limited ways in the majority of cases.
+
+Smack
+-----
+
+Smack is a Mandatory Access Control mechanism designed to provide useful MAC
+while avoiding the pitfalls of its predecessors. The limitations of Bell &
+LaPadula are addressed by providing a scheme whereby access can be controlled
+according to the requirements of the system and its purpose rather than those
+imposed by an arcane government policy. The complexity of Domain Type
+Enforcement and avoided by defining access controls in terms of the access
+modes already in use.
+
+Smack Terminology
+-----------------
+
+The jargon used to talk about Smack will be familiar to those who have dealt
+with other MAC systems and shouldn't be too difficult for the uninitiated to
+pick up. There are four terms that are used in a specific way and that are
+especially important:
+
+ Subject:
+ A subject is an active entity on the computer system.
+ On Smack a subject is a task, which is in turn the basic unit
+ of execution.
+
+ Object:
+ An object is a passive entity on the computer system.
+ On Smack files of all types, IPC, and tasks can be objects.
+
+ Access:
+ Any attempt by a subject to put information into or get
+ information from an object is an access.
+
+ Label:
+ Data that identifies the Mandatory Access Control
+ characteristics of a subject or an object.
+
+These definitions are consistent with the traditional use in the security
+community. There are also some terms from Linux that are likely to crop up:
+
+ Capability:
+ A task that possesses a capability has permission to
+ violate an aspect of the system security policy, as identified by
+ the specific capability. A task that possesses one or more
+ capabilities is a privileged task, whereas a task with no
+ capabilities is an unprivileged task.
+
+ Privilege:
+ A task that is allowed to violate the system security
+ policy is said to have privilege. As of this writing a task can
+ have privilege either by possessing capabilities or by having an
+ effective user of root.
+
+Smack Basics
+------------
+
+Smack is an extension to a Linux system. It enforces additional restrictions
+on what subjects can access which objects, based on the labels attached to
+each of the subject and the object.
+
+Labels
+~~~~~~
+
+Smack labels are ASCII character strings. They can be up to 255 characters
+long, but keeping them to twenty-three characters is recommended.
+Single character labels using special characters, that being anything
+other than a letter or digit, are reserved for use by the Smack development
+team. Smack labels are unstructured, case sensitive, and the only operation
+ever performed on them is comparison for equality. Smack labels cannot
+contain unprintable characters, the "/" (slash), the "\" (backslash), the "'"
+(quote) and '"' (double-quote) characters.
+Smack labels cannot begin with a '-'. This is reserved for special options.
+
+There are some predefined labels::
+
+ _ Pronounced "floor", a single underscore character.
+ ^ Pronounced "hat", a single circumflex character.
+ * Pronounced "star", a single asterisk character.
+ ? Pronounced "huh", a single question mark character.
+ @ Pronounced "web", a single at sign character.
+
+Every task on a Smack system is assigned a label. The Smack label
+of a process will usually be assigned by the system initialization
+mechanism.
+
+Access Rules
+~~~~~~~~~~~~
+
+Smack uses the traditional access modes of Linux. These modes are read,
+execute, write, and occasionally append. There are a few cases where the
+access mode may not be obvious. These include:
+
+ Signals:
+ A signal is a write operation from the subject task to
+ the object task.
+
+ Internet Domain IPC:
+ Transmission of a packet is considered a
+ write operation from the source task to the destination task.
+
+Smack restricts access based on the label attached to a subject and the label
+attached to the object it is trying to access. The rules enforced are, in
+order:
+
+ 1. Any access requested by a task labeled "*" is denied.
+ 2. A read or execute access requested by a task labeled "^"
+ is permitted.
+ 3. A read or execute access requested on an object labeled "_"
+ is permitted.
+ 4. Any access requested on an object labeled "*" is permitted.
+ 5. Any access requested by a task on an object with the same
+ label is permitted.
+ 6. Any access requested that is explicitly defined in the loaded
+ rule set is permitted.
+ 7. Any other access is denied.
+
+Smack Access Rules
+~~~~~~~~~~~~~~~~~~
+
+With the isolation provided by Smack access separation is simple. There are
+many interesting cases where limited access by subjects to objects with
+different labels is desired. One example is the familiar spy model of
+sensitivity, where a scientist working on a highly classified project would be
+able to read documents of lower classifications and anything she writes will
+be "born" highly classified. To accommodate such schemes Smack includes a
+mechanism for specifying rules allowing access between labels.
+
+Access Rule Format
+~~~~~~~~~~~~~~~~~~
+
+The format of an access rule is::
+
+ subject-label object-label access
+
+Where subject-label is the Smack label of the task, object-label is the Smack
+label of the thing being accessed, and access is a string specifying the sort
+of access allowed. The access specification is searched for letters that
+describe access modes:
+
+ a: indicates that append access should be granted.
+ r: indicates that read access should be granted.
+ w: indicates that write access should be granted.
+ x: indicates that execute access should be granted.
+ t: indicates that the rule requests transmutation.
+ b: indicates that the rule should be reported for bring-up.
+
+Uppercase values for the specification letters are allowed as well.
+Access mode specifications can be in any order. Examples of acceptable rules
+are::
+
+ TopSecret Secret rx
+ Secret Unclass R
+ Manager Game x
+ User HR w
+ Snap Crackle rwxatb
+ New Old rRrRr
+ Closed Off -
+
+Examples of unacceptable rules are::
+
+ Top Secret Secret rx
+ Ace Ace r
+ Odd spells waxbeans
+
+Spaces are not allowed in labels. Since a subject always has access to files
+with the same label specifying a rule for that case is pointless. Only
+valid letters (rwxatbRWXATB) and the dash ('-') character are allowed in
+access specifications. The dash is a placeholder, so "a-r" is the same
+as "ar". A lone dash is used to specify that no access should be allowed.
+
+Applying Access Rules
+~~~~~~~~~~~~~~~~~~~~~
+
+The developers of Linux rarely define new sorts of things, usually importing
+schemes and concepts from other systems. Most often, the other systems are
+variants of Unix. Unix has many endearing properties, but consistency of
+access control models is not one of them. Smack strives to treat accesses as
+uniformly as is sensible while keeping with the spirit of the underlying
+mechanism.
+
+File system objects including files, directories, named pipes, symbolic links,
+and devices require access permissions that closely match those used by mode
+bit access. To open a file for reading read access is required on the file. To
+search a directory requires execute access. Creating a file with write access
+requires both read and write access on the containing directory. Deleting a
+file requires read and write access to the file and to the containing
+directory. It is possible that a user may be able to see that a file exists
+but not any of its attributes by the circumstance of having read access to the
+containing directory but not to the differently labeled file. This is an
+artifact of the file name being data in the directory, not a part of the file.
+
+If a directory is marked as transmuting (SMACK64TRANSMUTE=TRUE) and the
+access rule that allows a process to create an object in that directory
+includes 't' access the label assigned to the new object will be that
+of the directory, not the creating process. This makes it much easier
+for two processes with different labels to share data without granting
+access to all of their files.
+
+IPC objects, message queues, semaphore sets, and memory segments exist in flat
+namespaces and access requests are only required to match the object in
+question.
+
+Process objects reflect tasks on the system and the Smack label used to access
+them is the same Smack label that the task would use for its own access
+attempts. Sending a signal via the kill() system call is a write operation
+from the signaler to the recipient. Debugging a process requires both reading
+and writing. Creating a new task is an internal operation that results in two
+tasks with identical Smack labels and requires no access checks.
+
+Sockets are data structures attached to processes and sending a packet from
+one process to another requires that the sender have write access to the
+receiver. The receiver is not required to have read access to the sender.
+
+Setting Access Rules
+~~~~~~~~~~~~~~~~~~~~
+
+The configuration file /etc/smack/accesses contains the rules to be set at
+system startup. The contents are written to the special file
+/sys/fs/smackfs/load2. Rules can be added at any time and take effect
+immediately. For any pair of subject and object labels there can be only
+one rule, with the most recently specified overriding any earlier
+specification.
+
+Task Attribute
+~~~~~~~~~~~~~~
+
+The Smack label of a process can be read from /proc/<pid>/attr/current. A
+process can read its own Smack label from /proc/self/attr/current. A
+privileged process can change its own Smack label by writing to
+/proc/self/attr/current but not the label of another process.
+
+File Attribute
+~~~~~~~~~~~~~~
+
+The Smack label of a filesystem object is stored as an extended attribute
+named SMACK64 on the file. This attribute is in the security namespace. It can
+only be changed by a process with privilege.
+
+Privilege
+~~~~~~~~~
+
+A process with CAP_MAC_OVERRIDE or CAP_MAC_ADMIN is privileged.
+CAP_MAC_OVERRIDE allows the process access to objects it would
+be denied otherwise. CAP_MAC_ADMIN allows a process to change
+Smack data, including rules and attributes.
+
+Smack Networking
+~~~~~~~~~~~~~~~~
+
+As mentioned before, Smack enforces access control on network protocol
+transmissions. Every packet sent by a Smack process is tagged with its Smack
+label. This is done by adding a CIPSO tag to the header of the IP packet. Each
+packet received is expected to have a CIPSO tag that identifies the label and
+if it lacks such a tag the network ambient label is assumed. Before the packet
+is delivered a check is made to determine that a subject with the label on the
+packet has write access to the receiving process and if that is not the case
+the packet is dropped.
+
+CIPSO Configuration
+~~~~~~~~~~~~~~~~~~~
+
+It is normally unnecessary to specify the CIPSO configuration. The default
+values used by the system handle all internal cases. Smack will compose CIPSO
+label values to match the Smack labels being used without administrative
+intervention. Unlabeled packets that come into the system will be given the
+ambient label.
+
+Smack requires configuration in the case where packets from a system that is
+not Smack that speaks CIPSO may be encountered. Usually this will be a Trusted
+Solaris system, but there are other, less widely deployed systems out there.
+CIPSO provides 3 important values, a Domain Of Interpretation (DOI), a level,
+and a category set with each packet. The DOI is intended to identify a group
+of systems that use compatible labeling schemes, and the DOI specified on the
+Smack system must match that of the remote system or packets will be
+discarded. The DOI is 3 by default. The value can be read from
+/sys/fs/smackfs/doi and can be changed by writing to /sys/fs/smackfs/doi.
+
+The label and category set are mapped to a Smack label as defined in
+/etc/smack/cipso.
+
+A Smack/CIPSO mapping has the form::
+
+ smack level [category [category]*]
+
+Smack does not expect the level or category sets to be related in any
+particular way and does not assume or assign accesses based on them. Some
+examples of mappings::
+
+ TopSecret 7
+ TS:A,B 7 1 2
+ SecBDE 5 2 4 6
+ RAFTERS 7 12 26
+
+The ":" and "," characters are permitted in a Smack label but have no special
+meaning.
+
+The mapping of Smack labels to CIPSO values is defined by writing to
+/sys/fs/smackfs/cipso2.
+
+In addition to explicit mappings Smack supports direct CIPSO mappings. One
+CIPSO level is used to indicate that the category set passed in the packet is
+in fact an encoding of the Smack label. The level used is 250 by default. The
+value can be read from /sys/fs/smackfs/direct and changed by writing to
+/sys/fs/smackfs/direct.
+
+Socket Attributes
+~~~~~~~~~~~~~~~~~
+
+There are two attributes that are associated with sockets. These attributes
+can only be set by privileged tasks, but any task can read them for their own
+sockets.
+
+ SMACK64IPIN:
+ The Smack label of the task object. A privileged
+ program that will enforce policy may set this to the star label.
+
+ SMACK64IPOUT:
+ The Smack label transmitted with outgoing packets.
+ A privileged program may set this to match the label of another
+ task with which it hopes to communicate.
+
+Smack Netlabel Exceptions
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+You will often find that your labeled application has to talk to the outside,
+unlabeled world. To do this there's a special file /sys/fs/smackfs/netlabel
+where you can add some exceptions in the form of::
+
+ @IP1 LABEL1 or
+ @IP2/MASK LABEL2
+
+It means that your application will have unlabeled access to @IP1 if it has
+write access on LABEL1, and access to the subnet @IP2/MASK if it has write
+access on LABEL2.
+
+Entries in the /sys/fs/smackfs/netlabel file are matched by longest mask
+first, like in classless IPv4 routing.
+
+A special label '@' and an option '-CIPSO' can be used there::
+
+ @ means Internet, any application with any label has access to it
+ -CIPSO means standard CIPSO networking
+
+If you don't know what CIPSO is and don't plan to use it, you can just do::
+
+ echo 127.0.0.1 -CIPSO > /sys/fs/smackfs/netlabel
+ echo 0.0.0.0/0 @ > /sys/fs/smackfs/netlabel
+
+If you use CIPSO on your 192.168.0.0/16 local network and need also unlabeled
+Internet access, you can have::
+
+ echo 127.0.0.1 -CIPSO > /sys/fs/smackfs/netlabel
+ echo 192.168.0.0/16 -CIPSO > /sys/fs/smackfs/netlabel
+ echo 0.0.0.0/0 @ > /sys/fs/smackfs/netlabel
+
+Writing Applications for Smack
+------------------------------
+
+There are three sorts of applications that will run on a Smack system. How an
+application interacts with Smack will determine what it will have to do to
+work properly under Smack.
+
+Smack Ignorant Applications
+---------------------------
+
+By far the majority of applications have no reason whatever to care about the
+unique properties of Smack. Since invoking a program has no impact on the
+Smack label associated with the process the only concern likely to arise is
+whether the process has execute access to the program.
+
+Smack Relevant Applications
+---------------------------
+
+Some programs can be improved by teaching them about Smack, but do not make
+any security decisions themselves. The utility ls(1) is one example of such a
+program.
+
+Smack Enforcing Applications
+----------------------------
+
+These are special programs that not only know about Smack, but participate in
+the enforcement of system policy. In most cases these are the programs that
+set up user sessions. There are also network services that provide information
+to processes running with various labels.
+
+File System Interfaces
+----------------------
+
+Smack maintains labels on file system objects using extended attributes. The
+Smack label of a file, directory, or other file system object can be obtained
+using getxattr(2)::
+
+ len = getxattr("/", "security.SMACK64", value, sizeof (value));
+
+will put the Smack label of the root directory into value. A privileged
+process can set the Smack label of a file system object with setxattr(2)::
+
+ len = strlen("Rubble");
+ rc = setxattr("/foo", "security.SMACK64", "Rubble", len, 0);
+
+will set the Smack label of /foo to "Rubble" if the program has appropriate
+privilege.
+
+Socket Interfaces
+-----------------
+
+The socket attributes can be read using fgetxattr(2).
+
+A privileged process can set the Smack label of outgoing packets with
+fsetxattr(2)::
+
+ len = strlen("Rubble");
+ rc = fsetxattr(fd, "security.SMACK64IPOUT", "Rubble", len, 0);
+
+will set the Smack label "Rubble" on packets going out from the socket if the
+program has appropriate privilege::
+
+ rc = fsetxattr(fd, "security.SMACK64IPIN, "*", strlen("*"), 0);
+
+will set the Smack label "*" as the object label against which incoming
+packets will be checked if the program has appropriate privilege.
+
+Administration
+--------------
+
+Smack supports some mount options:
+
+ smackfsdef=label:
+ specifies the label to give files that lack
+ the Smack label extended attribute.
+
+ smackfsroot=label:
+ specifies the label to assign the root of the
+ file system if it lacks the Smack extended attribute.
+
+ smackfshat=label:
+ specifies a label that must have read access to
+ all labels set on the filesystem. Not yet enforced.
+
+ smackfsfloor=label:
+ specifies a label to which all labels set on the
+ filesystem must have read access. Not yet enforced.
+
+These mount options apply to all file system types.
+
+Smack auditing
+--------------
+
+If you want Smack auditing of security events, you need to set CONFIG_AUDIT
+in your kernel configuration.
+By default, all denied events will be audited. You can change this behavior by
+writing a single character to the /sys/fs/smackfs/logging file::
+
+ 0 : no logging
+ 1 : log denied (default)
+ 2 : log accepted
+ 3 : log denied & accepted
+
+Events are logged as 'key=value' pairs, for each event you at least will get
+the subject, the object, the rights requested, the action, the kernel function
+that triggered the event, plus other pairs depending on the type of event
+audited.
+
+Bringup Mode
+------------
+
+Bringup mode provides logging features that can make application
+configuration and system bringup easier. Configure the kernel with
+CONFIG_SECURITY_SMACK_BRINGUP to enable these features. When bringup
+mode is enabled accesses that succeed due to rules marked with the "b"
+access mode will logged. When a new label is introduced for processes
+rules can be added aggressively, marked with the "b". The logging allows
+tracking of which rules actual get used for that label.
+
+Another feature of bringup mode is the "unconfined" option. Writing
+a label to /sys/fs/smackfs/unconfined makes subjects with that label
+able to access any object, and objects with that label accessible to
+all subjects. Any access that is granted because a label is unconfined
+is logged. This feature is dangerous, as files and directories may
+be created in places they couldn't if the policy were being enforced.
diff --git a/Documentation/admin-guide/LSM/Yama.rst b/Documentation/admin-guide/LSM/Yama.rst
new file mode 100644
index 000000000000..13468ea696b7
--- /dev/null
+++ b/Documentation/admin-guide/LSM/Yama.rst
@@ -0,0 +1,74 @@
+====
+Yama
+====
+
+Yama is a Linux Security Module that collects system-wide DAC security
+protections that are not handled by the core kernel itself. This is
+selectable at build-time with ``CONFIG_SECURITY_YAMA``, and can be controlled
+at run-time through sysctls in ``/proc/sys/kernel/yama``:
+
+ptrace_scope
+============
+
+As Linux grows in popularity, it will become a larger target for
+malware. One particularly troubling weakness of the Linux process
+interfaces is that a single user is able to examine the memory and
+running state of any of their processes. For example, if one application
+(e.g. Pidgin) was compromised, it would be possible for an attacker to
+attach to other running processes (e.g. Firefox, SSH sessions, GPG agent,
+etc) to extract additional credentials and continue to expand the scope
+of their attack without resorting to user-assisted phishing.
+
+This is not a theoretical problem. SSH session hijacking
+(http://www.storm.net.nz/projects/7) and arbitrary code injection
+(http://c-skills.blogspot.com/2007/05/injectso.html) attacks already
+exist and remain possible if ptrace is allowed to operate as before.
+Since ptrace is not commonly used by non-developers and non-admins, system
+builders should be allowed the option to disable this debugging system.
+
+For a solution, some applications use ``prctl(PR_SET_DUMPABLE, ...)`` to
+specifically disallow such ptrace attachment (e.g. ssh-agent), but many
+do not. A more general solution is to only allow ptrace directly from a
+parent to a child process (i.e. direct "gdb EXE" and "strace EXE" still
+work), or with ``CAP_SYS_PTRACE`` (i.e. "gdb --pid=PID", and "strace -p PID"
+still work as root).
+
+In mode 1, software that has defined application-specific relationships
+between a debugging process and its inferior (crash handlers, etc),
+``prctl(PR_SET_PTRACER, pid, ...)`` can be used. An inferior can declare which
+other process (and its descendants) are allowed to call ``PTRACE_ATTACH``
+against it. Only one such declared debugging process can exists for
+each inferior at a time. For example, this is used by KDE, Chromium, and
+Firefox's crash handlers, and by Wine for allowing only Wine processes
+to ptrace each other. If a process wishes to entirely disable these ptrace
+restrictions, it can call ``prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, ...)``
+so that any otherwise allowed process (even those in external pid namespaces)
+may attach.
+
+The sysctl settings (writable only with ``CAP_SYS_PTRACE``) are:
+
+0 - classic ptrace permissions:
+ a process can ``PTRACE_ATTACH`` to any other
+ process running under the same uid, as long as it is dumpable (i.e.
+ did not transition uids, start privileged, or have called
+ ``prctl(PR_SET_DUMPABLE...)`` already). Similarly, ``PTRACE_TRACEME`` is
+ unchanged.
+
+1 - restricted ptrace:
+ a process must have a predefined relationship
+ with the inferior it wants to call ``PTRACE_ATTACH`` on. By default,
+ this relationship is that of only its descendants when the above
+ classic criteria is also met. To change the relationship, an
+ inferior can call ``prctl(PR_SET_PTRACER, debugger, ...)`` to declare
+ an allowed debugger PID to call ``PTRACE_ATTACH`` on the inferior.
+ Using ``PTRACE_TRACEME`` is unchanged.
+
+2 - admin-only attach:
+ only processes with ``CAP_SYS_PTRACE`` may use ptrace
+ with ``PTRACE_ATTACH``, or through children calling ``PTRACE_TRACEME``.
+
+3 - no attach:
+ no processes may use ptrace with ``PTRACE_ATTACH`` nor via
+ ``PTRACE_TRACEME``. Once set, this sysctl value cannot be changed.
+
+The original children-only logic was based on the restrictions in grsecurity.
diff --git a/Documentation/admin-guide/LSM/apparmor.rst b/Documentation/admin-guide/LSM/apparmor.rst
new file mode 100644
index 000000000000..3e9734bd0e05
--- /dev/null
+++ b/Documentation/admin-guide/LSM/apparmor.rst
@@ -0,0 +1,51 @@
+========
+AppArmor
+========
+
+What is AppArmor?
+=================
+
+AppArmor is MAC style security extension for the Linux kernel. It implements
+a task centered policy, with task "profiles" being created and loaded
+from user space. Tasks on the system that do not have a profile defined for
+them run in an unconfined state which is equivalent to standard Linux DAC
+permissions.
+
+How to enable/disable
+=====================
+
+set ``CONFIG_SECURITY_APPARMOR=y``
+
+If AppArmor should be selected as the default security module then set::
+
+ CONFIG_DEFAULT_SECURITY="apparmor"
+ CONFIG_SECURITY_APPARMOR_BOOTPARAM_VALUE=1
+
+Build the kernel
+
+If AppArmor is not the default security module it can be enabled by passing
+``security=apparmor`` on the kernel's command line.
+
+If AppArmor is the default security module it can be disabled by passing
+``apparmor=0, security=XXXX`` (where ``XXXX`` is valid security module), on the
+kernel's command line.
+
+For AppArmor to enforce any restrictions beyond standard Linux DAC permissions
+policy must be loaded into the kernel from user space (see the Documentation
+and tools links).
+
+Documentation
+=============
+
+Documentation can be found on the wiki, linked below.
+
+Links
+=====
+
+Mailing List - apparmor@lists.ubuntu.com
+
+Wiki - http://apparmor.wiki.kernel.org/
+
+User space tools - https://launchpad.net/apparmor
+
+Kernel module - git://git.kernel.org/pub/scm/linux/kernel/git/jj/apparmor-dev.git
diff --git a/Documentation/admin-guide/LSM/index.rst b/Documentation/admin-guide/LSM/index.rst
new file mode 100644
index 000000000000..c980dfe9abf1
--- /dev/null
+++ b/Documentation/admin-guide/LSM/index.rst
@@ -0,0 +1,41 @@
+===========================
+Linux Security Module Usage
+===========================
+
+The Linux Security Module (LSM) framework provides a mechanism for
+various security checks to be hooked by new kernel extensions. The name
+"module" is a bit of a misnomer since these extensions are not actually
+loadable kernel modules. Instead, they are selectable at build-time via
+CONFIG_DEFAULT_SECURITY and can be overridden at boot-time via the
+``"security=..."`` kernel command line argument, in the case where multiple
+LSMs were built into a given kernel.
+
+The primary users of the LSM interface are Mandatory Access Control
+(MAC) extensions which provide a comprehensive security policy. Examples
+include SELinux, Smack, Tomoyo, and AppArmor. In addition to the larger
+MAC extensions, other extensions can be built using the LSM to provide
+specific changes to system operation when these tweaks are not available
+in the core functionality of Linux itself.
+
+Without a specific LSM built into the kernel, the default LSM will be the
+Linux capabilities system. Most LSMs choose to extend the capabilities
+system, building their checks on top of the defined capability hooks.
+For more details on capabilities, see ``capabilities(7)`` in the Linux
+man-pages project.
+
+A list of the active security modules can be found by reading
+``/sys/kernel/security/lsm``. This is a comma separated list, and
+will always include the capability module. The list reflects the
+order in which checks are made. The capability module will always
+be first, followed by any "minor" modules (e.g. Yama) and then
+the one "major" module (e.g. SELinux) if there is one configured.
+
+.. toctree::
+ :maxdepth: 1
+
+ apparmor
+ LoadPin
+ SELinux
+ Smack
+ tomoyo
+ Yama
diff --git a/Documentation/admin-guide/LSM/tomoyo.rst b/Documentation/admin-guide/LSM/tomoyo.rst
new file mode 100644
index 000000000000..e2d6b6e15082
--- /dev/null
+++ b/Documentation/admin-guide/LSM/tomoyo.rst
@@ -0,0 +1,65 @@
+======
+TOMOYO
+======
+
+What is TOMOYO?
+===============
+
+TOMOYO is a name-based MAC extension (LSM module) for the Linux kernel.
+
+LiveCD-based tutorials are available at
+
+http://tomoyo.sourceforge.jp/1.8/ubuntu12.04-live.html
+http://tomoyo.sourceforge.jp/1.8/centos6-live.html
+
+Though these tutorials use non-LSM version of TOMOYO, they are useful for you
+to know what TOMOYO is.
+
+How to enable TOMOYO?
+=====================
+
+Build the kernel with ``CONFIG_SECURITY_TOMOYO=y`` and pass ``security=tomoyo`` on
+kernel's command line.
+
+Please see http://tomoyo.osdn.jp/2.5/ for details.
+
+Where is documentation?
+=======================
+
+User <-> Kernel interface documentation is available at
+http://tomoyo.osdn.jp/2.5/policy-specification/index.html .
+
+Materials we prepared for seminars and symposiums are available at
+http://osdn.jp/projects/tomoyo/docs/?category_id=532&language_id=1 .
+Below lists are chosen from three aspects.
+
+What is TOMOYO?
+ TOMOYO Linux Overview
+ http://osdn.jp/projects/tomoyo/docs/lca2009-takeda.pdf
+ TOMOYO Linux: pragmatic and manageable security for Linux
+ http://osdn.jp/projects/tomoyo/docs/freedomhectaipei-tomoyo.pdf
+ TOMOYO Linux: A Practical Method to Understand and Protect Your Own Linux Box
+ http://osdn.jp/projects/tomoyo/docs/PacSec2007-en-no-demo.pdf
+
+What can TOMOYO do?
+ Deep inside TOMOYO Linux
+ http://osdn.jp/projects/tomoyo/docs/lca2009-kumaneko.pdf
+ The role of "pathname based access control" in security.
+ http://osdn.jp/projects/tomoyo/docs/lfj2008-bof.pdf
+
+History of TOMOYO?
+ Realities of Mainlining
+ http://osdn.jp/projects/tomoyo/docs/lfj2008.pdf
+
+What is future plan?
+====================
+
+We believe that inode based security and name based security are complementary
+and both should be used together. But unfortunately, so far, we cannot enable
+multiple LSM modules at the same time. We feel sorry that you have to give up
+SELinux/SMACK/AppArmor etc. when you want to use TOMOYO.
+
+We hope that LSM becomes stackable in future. Meanwhile, you can use non-LSM
+version of TOMOYO, available at http://tomoyo.osdn.jp/1.8/ .
+LSM version of TOMOYO is a subset of non-LSM version of TOMOYO. We are planning
+to port non-LSM version's functionalities to LSM versions.
diff --git a/Documentation/admin-guide/README.rst b/Documentation/admin-guide/README.rst
index b96e80f79e85..b5343c5aa224 100644
--- a/Documentation/admin-guide/README.rst
+++ b/Documentation/admin-guide/README.rst
@@ -55,12 +55,6 @@ Documentation
contains information about the problems, which may result by upgrading
your kernel.
- - The Documentation/DocBook/ subdirectory contains several guides for
- kernel developers and users. These guides can be rendered in a
- number of formats: PostScript (.ps), PDF, HTML, & man-pages, among others.
- After installation, ``make psdocs``, ``make pdfdocs``, ``make htmldocs``,
- or ``make mandocs`` will render the documentation in the requested format.
-
Installing the kernel source
----------------------------
diff --git a/Documentation/admin-guide/devices.txt b/Documentation/admin-guide/devices.txt
index c9cea2e39c21..4ec843123cc3 100644
--- a/Documentation/admin-guide/devices.txt
+++ b/Documentation/admin-guide/devices.txt
@@ -369,8 +369,10 @@
237 = /dev/loop-control Loopback control device
238 = /dev/vhost-net Host kernel accelerator for virtio net
239 = /dev/uhid User-space I/O driver support for HID subsystem
+ 240 = /dev/userio Serio driver testing device
+ 241 = /dev/vhost-vsock Host kernel driver for virtio vsock
- 240-254 Reserved for local use
+ 242-254 Reserved for local use
255 Reserved for MISC_DYNAMIC_MINOR
11 char Raw keyboard device (Linux/SPARC only)
@@ -3079,3 +3081,8 @@
1 = /dev/osd1 Second OSD Device
...
255 = /dev/osd255 256th OSD Device
+
+ 384-511 char RESERVED FOR DYNAMIC ASSIGNMENT
+ Character devices that request a dynamic allocation of major
+ number will take numbers starting from 511 and downward,
+ once the 234-254 range is full.
diff --git a/Documentation/admin-guide/index.rst b/Documentation/admin-guide/index.rst
index 8c60a8a32a1a..5bb9161dbe6a 100644
--- a/Documentation/admin-guide/index.rst
+++ b/Documentation/admin-guide/index.rst
@@ -61,6 +61,8 @@ configure specific aspects of kernel behavior to your liking.
java
ras
pm/index
+ thunderbolt
+ LSM/index
.. only:: subproject and html
diff --git a/Documentation/admin-guide/kernel-parameters.rst b/Documentation/admin-guide/kernel-parameters.rst
index d76ab3907e2b..b2598cc9834c 100644
--- a/Documentation/admin-guide/kernel-parameters.rst
+++ b/Documentation/admin-guide/kernel-parameters.rst
@@ -138,6 +138,7 @@ parameter is applicable::
PPT Parallel port support is enabled.
PS2 Appropriate PS/2 support is enabled.
RAM RAM disk support is enabled.
+ RDT Intel Resource Director Technology.
S390 S390 architecture is enabled.
SCSI Appropriate SCSI support is enabled.
A lot of drivers have their options described inside
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 7737ab5d04b2..05496622b4ef 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -649,6 +649,13 @@
/proc/<pid>/coredump_filter.
See also Documentation/filesystems/proc.txt.
+ coresight_cpu_debug.enable
+ [ARM,ARM64]
+ Format: <bool>
+ Enable/disable the CPU sampling based debugging.
+ 0: default value, disable debugging
+ 1: enable debugging at boot time
+
cpuidle.off=1 [CPU_IDLE]
disable the cpuidle sub-system
@@ -720,7 +727,8 @@
See also Documentation/input/joystick-parport.txt
ddebug_query= [KNL,DYNAMIC_DEBUG] Enable debug messages at early boot
- time. See Documentation/dynamic-debug-howto.txt for
+ time. See
+ Documentation/admin-guide/dynamic-debug-howto.rst for
details. Deprecated, see dyndbg.
debug [KNL] Enable kernel debugging (events log level).
@@ -883,7 +891,8 @@
dyndbg[="val"] [KNL,DYNAMIC_DEBUG]
module.dyndbg[="val"]
Enable debug messages at boot time. See
- Documentation/dynamic-debug-howto.txt for details.
+ Documentation/admin-guide/dynamic-debug-howto.rst
+ for details.
nompx [X86] Disables Intel Memory Protection Extensions.
See Documentation/x86/intel_mpx.txt for more
@@ -954,6 +963,12 @@
must already be setup and configured. Options are not
yet supported.
+ owl,<addr>
+ Start an early, polled-mode console on a serial port
+ of an Actions Semi SoC, such as S500 or S900, at the
+ specified address. The serial port must already be
+ setup and configured. Options are not yet supported.
+
smh Use ARM semihosting calls for early console.
s3c2410,<addr>
@@ -1486,12 +1501,21 @@
in crypto/hash_info.h.
ima_policy= [IMA]
- The builtin measurement policy to load during IMA
- setup. Specyfing "tcb" as the value, measures all
- programs exec'd, files mmap'd for exec, and all files
- opened with the read mode bit set by either the
- effective uid (euid=0) or uid=0.
- Format: "tcb"
+ The builtin policies to load during IMA setup.
+ Format: "tcb | appraise_tcb | secure_boot"
+
+ The "tcb" policy measures all programs exec'd, files
+ mmap'd for exec, and all files opened with the read
+ mode bit set by either the effective uid (euid=0) or
+ uid=0.
+
+ The "appraise_tcb" policy appraises the integrity of
+ all files owned by root. (This is the equivalent
+ of ima_appraise_tcb.)
+
+ The "secure_boot" policy appraises the integrity
+ of files (eg. kexec kernel image, kernel modules,
+ firmware, policy, etc) based on file signatures.
ima_tcb [IMA] Deprecated. Use ima_policy= instead.
Load a policy which meets the needs of the Trusted
@@ -1838,6 +1862,18 @@
for all guests.
Default is 1 (enabled) if in 64-bit or 32-bit PAE mode.
+ kvm-arm.vgic_v3_group0_trap=
+ [KVM,ARM] Trap guest accesses to GICv3 group-0
+ system registers
+
+ kvm-arm.vgic_v3_group1_trap=
+ [KVM,ARM] Trap guest accesses to GICv3 group-1
+ system registers
+
+ kvm-arm.vgic_v3_common_trap=
+ [KVM,ARM] Trap guest accesses to GICv3 common
+ system registers
+
kvm-intel.ept= [KVM,Intel] Disable extended page tables
(virtualized MMU) support on capable Intel chips.
Default is 1 (enabled)
@@ -2136,6 +2172,12 @@
memmap=nn[KMG]@ss[KMG]
[KNL] Force usage of a specific region of memory.
Region of memory to be used is from ss to ss+nn.
+ If @ss[KMG] is omitted, it is equivalent to mem=nn[KMG],
+ which limits max address to nn[KMG].
+ Multiple different regions can be specified,
+ comma delimited.
+ Example:
+ memmap=100M@2G,100M#3G,1G!1024G
memmap=nn[KMG]#ss[KMG]
[KNL,ACPI] Mark specific memory as ACPI data.
@@ -2148,6 +2190,9 @@
memmap=64K$0x18690000
or
memmap=0x10000$0x18690000
+ Some bootloaders may need an escape character before '$',
+ like Grub2, otherwise '$' and the following number
+ will be eaten.
memmap=nn[KMG]!ss[KMG]
[KNL,X86] Mark specific memory as protected.
@@ -2188,6 +2233,17 @@
memory contents and reserves bad memory
regions that are detected.
+ mem_encrypt= [X86-64] AMD Secure Memory Encryption (SME) control
+ Valid arguments: on, off
+ Default (depends on kernel configuration option):
+ on (CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT=y)
+ off (CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT=n)
+ mem_encrypt=on: Activate SME
+ mem_encrypt=off: Do not activate SME
+
+ Refer to Documentation/x86/amd-memory-encryption.txt
+ for details on when memory encryption can be activated.
+
mem_sleep_default= [SUSPEND] Default system suspend mode:
s2idle - Suspend-To-Idle
shallow - Power-On Suspend or equivalent (if supported)
@@ -2270,8 +2326,11 @@
that the amount of memory usable for all allocations
is not too small.
- movable_node [KNL] Boot-time switch to enable the effects
- of CONFIG_MOVABLE_NODE=y. See mm/Kconfig for details.
+ movable_node [KNL] Boot-time switch to make hotplugable memory
+ NUMA nodes to be movable. This means that the memory
+ of such nodes will be usable only for movable
+ allocations which rules out almost all kernel
+ allocations. Use with caution!
MTD_Partition= [MTD]
Format: <name>,<region-number>,<size>,<offset>
@@ -2585,9 +2644,10 @@
In kernels built with CONFIG_NO_HZ_FULL=y, set
the specified list of CPUs whose tick will be stopped
whenever possible. The boot CPU will be forced outside
- the range to maintain the timekeeping.
- The CPUs in this range must also be included in the
- rcu_nocbs= set.
+ the range to maintain the timekeeping. Any CPUs
+ in this list will have their RCU callbacks offloaded,
+ just as if they had also been called out in the
+ rcu_nocbs= boot parameter.
noiotrap [SH] Disables trapped I/O port accesses.
@@ -2648,6 +2708,8 @@
nopat [X86] Disable PAT (page attribute table extension of
pagetables) support.
+ nopcid [X86-64] Disable the PCID cpu feature.
+
norandmaps Don't use address space randomization. Equivalent to
echo 0 > /proc/sys/kernel/randomize_va_space
@@ -2702,6 +2764,15 @@
If the dependencies are under your control, you can
turn on cpu0_hotplug.
+ nps_mtm_hs_ctr= [KNL,ARC]
+ This parameter sets the maximum duration, in
+ cycles, each HW thread of the CTOP can run
+ without interruptions, before HW switches it.
+ The actual maximum duration is 16 times this
+ parameter's value.
+ Format: integer between 1 and 255
+ Default: 255
+
nptcg= [IA-64] Override max number of concurrent global TLB
purges which is reported from either PAL_VM_SUMMARY or
SAL PALO.
@@ -2721,7 +2792,7 @@
Allowed values are enable and disable
numa_zonelist_order= [KNL, BOOT] Select zonelist order for NUMA.
- one of ['zone', 'node', 'default'] can be specified
+ 'node', 'default' can be specified
This can be set from sysctl after boot.
See Documentation/sysctl/vm.txt for details.
@@ -3238,21 +3309,17 @@
rcutree.gp_cleanup_delay= [KNL]
Set the number of jiffies to delay each step of
- RCU grace-period cleanup. This only has effect
- when CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP is set.
+ RCU grace-period cleanup.
rcutree.gp_init_delay= [KNL]
Set the number of jiffies to delay each step of
- RCU grace-period initialization. This only has
- effect when CONFIG_RCU_TORTURE_TEST_SLOW_INIT
- is set.
+ RCU grace-period initialization.
rcutree.gp_preinit_delay= [KNL]
Set the number of jiffies to delay each step of
RCU grace-period pre-initialization, that is,
the propagation of recent CPU-hotplug changes up
- the rcu_node combining tree. This only has effect
- when CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT is set.
+ the rcu_node combining tree.
rcutree.rcu_fanout_exact= [KNL]
Disable autobalancing of the rcu_node combining
@@ -3328,6 +3395,17 @@
This wake_up() will be accompanied by a
WARN_ONCE() splat and an ftrace_dump().
+ rcuperf.gp_async= [KNL]
+ Measure performance of asynchronous
+ grace-period primitives such as call_rcu().
+
+ rcuperf.gp_async_max= [KNL]
+ Specify the maximum number of outstanding
+ callbacks per writer thread. When a writer
+ thread exceeds this limit, it invokes the
+ corresponding flavor of rcu_barrier() to allow
+ previously posted callbacks to drain.
+
rcuperf.gp_exp= [KNL]
Measure performance of expedited synchronous
grace-period primitives.
@@ -3355,17 +3433,22 @@
rcuperf.perf_runnable= [BOOT]
Start rcuperf running at boot time.
+ rcuperf.perf_type= [KNL]
+ Specify the RCU implementation to test.
+
rcuperf.shutdown= [KNL]
Shut the system down after performance tests
complete. This is useful for hands-off automated
testing.
- rcuperf.perf_type= [KNL]
- Specify the RCU implementation to test.
-
rcuperf.verbose= [KNL]
Enable additional printk() statements.
+ rcuperf.writer_holdoff= [KNL]
+ Write-side holdoff between grace periods,
+ in microseconds. The default of zero says
+ no holdoff.
+
rcutorture.cbflood_inter_holdoff= [KNL]
Set holdoff time (jiffies) between successive
callback-flood tests.
@@ -3538,6 +3621,12 @@
Run specified binary instead of /init from the ramdisk,
used for early userspace startup. See initrd.
+ rdt= [HW,X86,RDT]
+ Turn on/off individual RDT features. List is:
+ cmt, mbmtotal, mbmlocal, l3cat, l3cdp, l2cat, mba.
+ E.g. to turn on cmt and turn off mba use:
+ rdt=cmt,!mba
+
reboot= [KNL]
Format (x86 or x86_64):
[w[arm] | c[old] | h[ard] | s[oft] | g[pio]] \
@@ -3715,8 +3804,14 @@
slab_nomerge [MM]
Disable merging of slabs with similar size. May be
necessary if there is some reason to distinguish
- allocs to different slabs. Debug options disable
- merging on their own.
+ allocs to different slabs, especially in hardened
+ environments where the risk of heap overflows and
+ layout control by attackers can usually be
+ frustrated by disabling merging. This will reduce
+ most of the exposure of a heap attack to a single
+ cache (risks via metadata attacks are mostly
+ unchanged). Debug options disable merging on their
+ own.
For more information see Documentation/vm/slub.txt.
slab_max_order= [MM, SLAB]
@@ -3803,6 +3898,15 @@
spia_pedr=
spia_peddr=
+ srcutree.counter_wrap_check [KNL]
+ Specifies how frequently to check for
+ grace-period sequence counter wrap for the
+ srcu_data structure's ->srcu_gp_seq_needed field.
+ The greater the number of bits set in this kernel
+ parameter, the less frequently counter wrap will
+ be checked for. Note that the bottom two bits
+ are ignored.
+
srcutree.exp_holdoff [KNL]
Specifies how many nanoseconds must elapse
since the end of the last SRCU grace period for
@@ -4300,6 +4404,10 @@
decrease the size and leave more room for directly
mapped kernel RAM.
+ vmcp_cma=nn[MG] [KNL,S390]
+ Sets the memory size reserved for contiguous memory
+ allocations for the vmcp device driver.
+
vmhalt= [KNL,S390] Perform z/VM CP command after system halt.
Format: <command>
diff --git a/Documentation/admin-guide/pm/cpufreq.rst b/Documentation/admin-guide/pm/cpufreq.rst
index 09aa2e949787..47153e64dfb5 100644
--- a/Documentation/admin-guide/pm/cpufreq.rst
+++ b/Documentation/admin-guide/pm/cpufreq.rst
@@ -237,6 +237,14 @@ are the following:
This attribute is not present if the scaling driver in use does not
support it.
+``cpuinfo_cur_freq``
+ Current frequency of the CPUs belonging to this policy as obtained from
+ the hardware (in KHz).
+
+ This is expected to be the frequency the hardware actually runs at.
+ If that frequency cannot be determined, this attribute should not
+ be present.
+
``cpuinfo_max_freq``
Maximum possible operating frequency the CPUs belonging to this policy
can run at (in kHz).
@@ -269,16 +277,16 @@ are the following:
``scaling_cur_freq``
Current frequency of all of the CPUs belonging to this policy (in kHz).
- For the majority of scaling drivers, this is the frequency of the last
- P-state requested by the driver from the hardware using the scaling
+ In the majority of cases, this is the frequency of the last P-state
+ requested by the scaling driver from the hardware using the scaling
interface provided by it, which may or may not reflect the frequency
the CPU is actually running at (due to hardware design and other
limitations).
- Some scaling drivers (e.g. |intel_pstate|) attempt to provide
- information more precisely reflecting the current CPU frequency through
- this attribute, but that still may not be the exact current CPU
- frequency as seen by the hardware at the moment.
+ Some architectures (e.g. ``x86``) may attempt to provide information
+ more precisely reflecting the current CPU frequency through this
+ attribute, but that still may not be the exact current CPU frequency as
+ seen by the hardware at the moment.
``scaling_driver``
The scaling driver currently in use.
@@ -471,14 +479,6 @@ This governor exposes the following tunables:
# echo `$(($(cat cpuinfo_transition_latency) * 750 / 1000)) > ondemand/sampling_rate
-
-``min_sampling_rate``
- The minimum value of ``sampling_rate``.
-
- Equal to 10000 (10 ms) if :c:macro:`CONFIG_NO_HZ_COMMON` and
- :c:data:`tick_nohz_active` are both set or to 20 times the value of
- :c:data:`jiffies` in microseconds otherwise.
-
``up_threshold``
If the estimated CPU load is above this value (in percent), the governor
will set the frequency to the maximum value allowed for the policy.
diff --git a/Documentation/admin-guide/pm/index.rst b/Documentation/admin-guide/pm/index.rst
index 7f148f76f432..49237ac73442 100644
--- a/Documentation/admin-guide/pm/index.rst
+++ b/Documentation/admin-guide/pm/index.rst
@@ -5,12 +5,6 @@ Power Management
.. toctree::
:maxdepth: 2
- cpufreq
- intel_pstate
-
-.. only:: subproject and html
-
- Indices
- =======
-
- * :ref:`genindex`
+ strategies
+ system-wide
+ working-state
diff --git a/Documentation/admin-guide/pm/intel_pstate.rst b/Documentation/admin-guide/pm/intel_pstate.rst
index 33d703989ea8..d2b6fda3d67b 100644
--- a/Documentation/admin-guide/pm/intel_pstate.rst
+++ b/Documentation/admin-guide/pm/intel_pstate.rst
@@ -157,10 +157,8 @@ Without HWP, this P-state selection algorithm is always the same regardless of
the processor model and platform configuration.
It selects the maximum P-state it is allowed to use, subject to limits set via
-``sysfs``, every time the P-state selection computations are carried out by the
-driver's utilization update callback for the given CPU (that does not happen
-more often than every 10 ms), but the hardware configuration will not be changed
-if the new P-state is the same as the current one.
+``sysfs``, every time the driver configuration for the given CPU is updated
+(e.g. via ``sysfs``).
This is the default P-state selection algorithm if the
:c:macro:`CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE` kernel configuration option
@@ -169,35 +167,17 @@ is set.
``powersave``
.............
-Without HWP, this P-state selection algorithm generally depends on the
-processor model and/or the system profile setting in the ACPI tables and there
-are two variants of it.
-
-One of them is used with processors from the Atom line and (regardless of the
-processor model) on platforms with the system profile in the ACPI tables set to
-"mobile" (laptops mostly), "tablet", "appliance PC", "desktop", or
-"workstation". It is also used with processors supporting the HWP feature if
-that feature has not been enabled (that is, with the ``intel_pstate=no_hwp``
-argument in the kernel command line). It is similar to the algorithm
+Without HWP, this P-state selection algorithm is similar to the algorithm
implemented by the generic ``schedutil`` scaling governor except that the
utilization metric used by it is based on numbers coming from feedback
registers of the CPU. It generally selects P-states proportional to the
-current CPU utilization, so it is referred to as the "proportional" algorithm.
-
-The second variant of the ``powersave`` P-state selection algorithm, used in all
-of the other cases (generally, on processors from the Core line, so it is
-referred to as the "Core" algorithm), is based on the values read from the APERF
-and MPERF feedback registers and the previously requested target P-state.
-It does not really take CPU utilization into account explicitly, but as a rule
-it causes the CPU P-state to ramp up very quickly in response to increased
-utilization which is generally desirable in server environments.
-
-Regardless of the variant, this algorithm is run by the driver's utilization
-update callback for the given CPU when it is invoked by the CPU scheduler, but
-not more often than every 10 ms (that can be tweaked via ``debugfs`` in `this
-particular case <Tuning Interface in debugfs_>`_). Like in the ``performance``
-case, the hardware configuration is not touched if the new P-state turns out to
-be the same as the current one.
+current CPU utilization.
+
+This algorithm is run by the driver's utilization update callback for the
+given CPU when it is invoked by the CPU scheduler, but not more often than
+every 10 ms. Like in the ``performance`` case, the hardware configuration
+is not touched if the new P-state turns out to be the same as the current
+one.
This is the default P-state selection algorithm if the
:c:macro:`CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE` kernel configuration option
@@ -722,34 +702,7 @@ P-state is called, the ``ftrace`` filter can be set to to
gnome-shell-3409 [001] ..s. 2537.650850: intel_pstate_set_pstate <-intel_pstate_timer_func
<idle>-0 [000] ..s. 2537.654843: intel_pstate_set_pstate <-intel_pstate_timer_func
-Tuning Interface in ``debugfs``
--------------------------------
-
-The ``powersave`` algorithm provided by ``intel_pstate`` for `the Core line of
-processors in the active mode <powersave_>`_ is based on a `PID controller`_
-whose parameters were chosen to address a number of different use cases at the
-same time. However, it still is possible to fine-tune it to a specific workload
-and the ``debugfs`` interface under ``/sys/kernel/debug/pstate_snb/`` is
-provided for this purpose. [Note that the ``pstate_snb`` directory will be
-present only if the specific P-state selection algorithm matching the interface
-in it actually is in use.]
-
-The following files present in that directory can be used to modify the PID
-controller parameters at run time:
-
-| ``deadband``
-| ``d_gain_pct``
-| ``i_gain_pct``
-| ``p_gain_pct``
-| ``sample_rate_ms``
-| ``setpoint``
-
-Note, however, that achieving desirable results this way generally requires
-expert-level understanding of the power vs performance tradeoff, so extra care
-is recommended when attempting to do that.
-
.. _LCEU2015: http://events.linuxfoundation.org/sites/events/files/slides/LinuxConEurope_2015.pdf
.. _SDM: http://www.intel.com/content/www/us/en/architecture-and-technology/64-ia-32-architectures-software-developer-system-programming-manual-325384.html
.. _ACPI specification: http://www.uefi.org/sites/default/files/resources/ACPI_6_1.pdf
-.. _PID controller: https://en.wikipedia.org/wiki/PID_controller
diff --git a/Documentation/admin-guide/pm/sleep-states.rst b/Documentation/admin-guide/pm/sleep-states.rst
new file mode 100644
index 000000000000..1e5c0f00cb2f
--- /dev/null
+++ b/Documentation/admin-guide/pm/sleep-states.rst
@@ -0,0 +1,245 @@
+===================
+System Sleep States
+===================
+
+::
+
+ Copyright (c) 2017 Intel Corp., Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+
+Sleep states are global low-power states of the entire system in which user
+space code cannot be executed and the overall system activity is significantly
+reduced.
+
+
+Sleep States That Can Be Supported
+==================================
+
+Depending on its configuration and the capabilities of the platform it runs on,
+the Linux kernel can support up to four system sleep states, includig
+hibernation and up to three variants of system suspend. The sleep states that
+can be supported by the kernel are listed below.
+
+.. _s2idle:
+
+Suspend-to-Idle
+---------------
+
+This is a generic, pure software, light-weight variant of system suspend (also
+referred to as S2I or S2Idle). It allows more energy to be saved relative to
+runtime idle by freezing user space, suspending the timekeeping and putting all
+I/O devices into low-power states (possibly lower-power than available in the
+working state), such that the processors can spend time in their deepest idle
+states while the system is suspended.
+
+The system is woken up from this state by in-band interrupts, so theoretically
+any devices that can cause interrupts to be generated in the working state can
+also be set up as wakeup devices for S2Idle.
+
+This state can be used on platforms without support for :ref:`standby <standby>`
+or :ref:`suspend-to-RAM <s2ram>`, or it can be used in addition to any of the
+deeper system suspend variants to provide reduced resume latency. It is always
+supported if the :c:macro:`CONFIG_SUSPEND` kernel configuration option is set.
+
+.. _standby:
+
+Standby
+-------
+
+This state, if supported, offers moderate, but real, energy savings, while
+providing a relatively straightforward transition back to the working state. No
+operating state is lost (the system core logic retains power), so the system can
+go back to where it left off easily enough.
+
+In addition to freezing user space, suspending the timekeeping and putting all
+I/O devices into low-power states, which is done for :ref:`suspend-to-idle
+<s2idle>` too, nonboot CPUs are taken offline and all low-level system functions
+are suspended during transitions into this state. For this reason, it should
+allow more energy to be saved relative to :ref:`suspend-to-idle <s2idle>`, but
+the resume latency will generally be greater than for that state.
+
+The set of devices that can wake up the system from this state usually is
+reduced relative to :ref:`suspend-to-idle <s2idle>` and it may be necessary to
+rely on the platform for setting up the wakeup functionality as appropriate.
+
+This state is supported if the :c:macro:`CONFIG_SUSPEND` kernel configuration
+option is set and the support for it is registered by the platform with the
+core system suspend subsystem. On ACPI-based systems this state is mapped to
+the S1 system state defined by ACPI.
+
+.. _s2ram:
+
+Suspend-to-RAM
+--------------
+
+This state (also referred to as STR or S2RAM), if supported, offers significant
+energy savings as everything in the system is put into a low-power state, except
+for memory, which should be placed into the self-refresh mode to retain its
+contents. All of the steps carried out when entering :ref:`standby <standby>`
+are also carried out during transitions to S2RAM. Additional operations may
+take place depending on the platform capabilities. In particular, on ACPI-based
+systems the kernel passes control to the platform firmware (BIOS) as the last
+step during S2RAM transitions and that usually results in powering down some
+more low-level components that are not directly controlled by the kernel.
+
+The state of devices and CPUs is saved and held in memory. All devices are
+suspended and put into low-power states. In many cases, all peripheral buses
+lose power when entering S2RAM, so devices must be able to handle the transition
+back to the "on" state.
+
+On ACPI-based systems S2RAM requires some minimal boot-strapping code in the
+platform firmware to resume the system from it. This may be the case on other
+platforms too.
+
+The set of devices that can wake up the system from S2RAM usually is reduced
+relative to :ref:`suspend-to-idle <s2idle>` and :ref:`standby <standby>` and it
+may be necessary to rely on the platform for setting up the wakeup functionality
+as appropriate.
+
+S2RAM is supported if the :c:macro:`CONFIG_SUSPEND` kernel configuration option
+is set and the support for it is registered by the platform with the core system
+suspend subsystem. On ACPI-based systems it is mapped to the S3 system state
+defined by ACPI.
+
+.. _hibernation:
+
+Hibernation
+-----------
+
+This state (also referred to as Suspend-to-Disk or STD) offers the greatest
+energy savings and can be used even in the absence of low-level platform support
+for system suspend. However, it requires some low-level code for resuming the
+system to be present for the underlying CPU architecture.
+
+Hibernation is significantly different from any of the system suspend variants.
+It takes three system state changes to put it into hibernation and two system
+state changes to resume it.
+
+First, when hibernation is triggered, the kernel stops all system activity and
+creates a snapshot image of memory to be written into persistent storage. Next,
+the system goes into a state in which the snapshot image can be saved, the image
+is written out and finally the system goes into the target low-power state in
+which power is cut from almost all of its hardware components, including memory,
+except for a limited set of wakeup devices.
+
+Once the snapshot image has been written out, the system may either enter a
+special low-power state (like ACPI S4), or it may simply power down itself.
+Powering down means minimum power draw and it allows this mechanism to work on
+any system. However, entering a special low-power state may allow additional
+means of system wakeup to be used (e.g. pressing a key on the keyboard or
+opening a laptop lid).
+
+After wakeup, control goes to the platform firmware that runs a boot loader
+which boots a fresh instance of the kernel (control may also go directly to
+the boot loader, depending on the system configuration, but anyway it causes
+a fresh instance of the kernel to be booted). That new instance of the kernel
+(referred to as the ``restore kernel``) looks for a hibernation image in
+persistent storage and if one is found, it is loaded into memory. Next, all
+activity in the system is stopped and the restore kernel overwrites itself with
+the image contents and jumps into a special trampoline area in the original
+kernel stored in the image (referred to as the ``image kernel``), which is where
+the special architecture-specific low-level code is needed. Finally, the
+image kernel restores the system to the pre-hibernation state and allows user
+space to run again.
+
+Hibernation is supported if the :c:macro:`CONFIG_HIBERNATION` kernel
+configuration option is set. However, this option can only be set if support
+for the given CPU architecture includes the low-level code for system resume.
+
+
+Basic ``sysfs`` Interfaces for System Suspend and Hibernation
+=============================================================
+
+The following files located in the :file:`/sys/power/` directory can be used by
+user space for sleep states control.
+
+``state``
+ This file contains a list of strings representing sleep states supported
+ by the kernel. Writing one of these strings into it causes the kernel
+ to start a transition of the system into the sleep state represented by
+ that string.
+
+ In particular, the strings "disk", "freeze" and "standby" represent the
+ :ref:`hibernation <hibernation>`, :ref:`suspend-to-idle <s2idle>` and
+ :ref:`standby <standby>` sleep states, respectively. The string "mem"
+ is interpreted in accordance with the contents of the ``mem_sleep`` file
+ described below.
+
+ If the kernel does not support any system sleep states, this file is
+ not present.
+
+``mem_sleep``
+ This file contains a list of strings representing supported system
+ suspend variants and allows user space to select the variant to be
+ associated with the "mem" string in the ``state`` file described above.
+
+ The strings that may be present in this file are "s2idle", "shallow"
+ and "deep". The string "s2idle" always represents :ref:`suspend-to-idle
+ <s2idle>` and, by convention, "shallow" and "deep" represent
+ :ref:`standby <standby>` and :ref:`suspend-to-RAM <s2ram>`,
+ respectively.
+
+ Writing one of the listed strings into this file causes the system
+ suspend variant represented by it to be associated with the "mem" string
+ in the ``state`` file. The string representing the suspend variant
+ currently associated with the "mem" string in the ``state`` file
+ is listed in square brackets.
+
+ If the kernel does not support system suspend, this file is not present.
+
+``disk``
+ This file contains a list of strings representing different operations
+ that can be carried out after the hibernation image has been saved. The
+ possible options are as follows:
+
+ ``platform``
+ Put the system into a special low-power state (e.g. ACPI S4) to
+ make additional wakeup options available and possibly allow the
+ platform firmware to take a simplified initialization path after
+ wakeup.
+
+ ``shutdown``
+ Power off the system.
+
+ ``reboot``
+ Reboot the system (useful for diagnostics mostly).
+
+ ``suspend``
+ Hybrid system suspend. Put the system into the suspend sleep
+ state selected through the ``mem_sleep`` file described above.
+ If the system is successfully woken up from that state, discard
+ the hibernation image and continue. Otherwise, use the image
+ to restore the previous state of the system.
+
+ ``test_resume``
+ Diagnostic operation. Load the image as though the system had
+ just woken up from hibernation and the currently running kernel
+ instance was a restore kernel and follow up with full system
+ resume.
+
+ Writing one of the listed strings into this file causes the option
+ represented by it to be selected.
+
+ The currently selected option is shown in square brackets which means
+ that the operation represented by it will be carried out after creating
+ and saving the image next time hibernation is triggered by writing
+ ``disk`` to :file:`/sys/power/state`.
+
+ If the kernel does not support hibernation, this file is not present.
+
+According to the above, there are two ways to make the system go into the
+:ref:`suspend-to-idle <s2idle>` state. The first one is to write "freeze"
+directly to :file:`/sys/power/state`. The second one is to write "s2idle" to
+:file:`/sys/power/mem_sleep` and then to write "mem" to
+:file:`/sys/power/state`. Likewise, there are two ways to make the system go
+into the :ref:`standby <standby>` state (the strings to write to the control
+files in that case are "standby" or "shallow" and "mem", respectively) if that
+state is supported by the platform. However, there is only one way to make the
+system go into the :ref:`suspend-to-RAM <s2ram>` state (write "deep" into
+:file:`/sys/power/mem_sleep` and "mem" into :file:`/sys/power/state`).
+
+The default suspend variant (ie. the one to be used without writing anything
+into :file:`/sys/power/mem_sleep`) is either "deep" (on the majority of systems
+supporting :ref:`suspend-to-RAM <s2ram>`) or "s2idle", but it can be overridden
+by the value of the "mem_sleep_default" parameter in the kernel command line.
+On some ACPI-based systems, depending on the information in the ACPI tables, the
+default may be "s2idle" even if :ref:`suspend-to-RAM <s2ram>` is supported.
diff --git a/Documentation/admin-guide/pm/strategies.rst b/Documentation/admin-guide/pm/strategies.rst
new file mode 100644
index 000000000000..afe4d3f831fe
--- /dev/null
+++ b/Documentation/admin-guide/pm/strategies.rst
@@ -0,0 +1,52 @@
+===========================
+Power Management Strategies
+===========================
+
+::
+
+ Copyright (c) 2017 Intel Corp., Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+
+The Linux kernel supports two major high-level power management strategies.
+
+One of them is based on using global low-power states of the whole system in
+which user space code cannot be executed and the overall system activity is
+significantly reduced, referred to as :doc:`sleep states <sleep-states>`. The
+kernel puts the system into one of these states when requested by user space
+and the system stays in it until a special signal is received from one of
+designated devices, triggering a transition to the ``working state`` in which
+user space code can run. Because sleep states are global and the whole system
+is affected by the state changes, this strategy is referred to as the
+:doc:`system-wide power management <system-wide>`.
+
+The other strategy, referred to as the :doc:`working-state power management
+<working-state>`, is based on adjusting the power states of individual hardware
+components of the system, as needed, in the working state. In consequence, if
+this strategy is in use, the working state of the system usually does not
+correspond to any particular physical configuration of it, but can be treated as
+a metastate covering a range of different power states of the system in which
+the individual components of it can be either ``active`` (in use) or
+``inactive`` (idle). If they are active, they have to be in power states
+allowing them to process data and to be accessed by software. In turn, if they
+are inactive, ideally, they should be in low-power states in which they may not
+be accessible.
+
+If all of the system components are active, the system as a whole is regarded as
+"runtime active" and that situation typically corresponds to the maximum power
+draw (or maximum energy usage) of it. If all of them are inactive, the system
+as a whole is regarded as "runtime idle" which may be very close to a sleep
+state from the physical system configuration and power draw perspective, but
+then it takes much less time and effort to start executing user space code than
+for the same system in a sleep state. However, transitions from sleep states
+back to the working state can only be started by a limited set of devices, so
+typically the system can spend much more time in a sleep state than it can be
+runtime idle in one go. For this reason, systems usually use less energy in
+sleep states than when they are runtime idle most of the time.
+
+Moreover, the two power management strategies address different usage scenarios.
+Namely, if the user indicates that the system will not be in use going forward,
+for example by closing its lid (if the system is a laptop), it probably should
+go into a sleep state at that point. On the other hand, if the user simply goes
+away from the laptop keyboard, it probably should stay in the working state and
+use the working-state power management in case it becomes idle, because the user
+may come back to it at any time and then may want the system to be immediately
+accessible.
diff --git a/Documentation/admin-guide/pm/system-wide.rst b/Documentation/admin-guide/pm/system-wide.rst
new file mode 100644
index 000000000000..0c81e4c5de39
--- /dev/null
+++ b/Documentation/admin-guide/pm/system-wide.rst
@@ -0,0 +1,8 @@
+============================
+System-Wide Power Management
+============================
+
+.. toctree::
+ :maxdepth: 2
+
+ sleep-states
diff --git a/Documentation/admin-guide/pm/working-state.rst b/Documentation/admin-guide/pm/working-state.rst
new file mode 100644
index 000000000000..fa01bf083dfe
--- /dev/null
+++ b/Documentation/admin-guide/pm/working-state.rst
@@ -0,0 +1,9 @@
+==============================
+Working-State Power Management
+==============================
+
+.. toctree::
+ :maxdepth: 2
+
+ cpufreq
+ intel_pstate
diff --git a/Documentation/admin-guide/ras.rst b/Documentation/admin-guide/ras.rst
index 8c7bbf2c88d2..197896718f81 100644
--- a/Documentation/admin-guide/ras.rst
+++ b/Documentation/admin-guide/ras.rst
@@ -344,9 +344,9 @@ for more than 2 channels, like Fully Buffered DIMMs (FB-DIMMs) memory
controllers. The following example will assume 2 channels:
+------------+-----------------------+
- | Chip | Channels |
- | Select +-----------+-----------+
- | rows | ``ch0`` | ``ch1`` |
+ | CS Rows | Channels |
+ +------------+-----------+-----------+
+ | | ``ch0`` | ``ch1`` |
+============+===========+===========+
| ``csrow0`` | DIMM_A0 | DIMM_B0 |
+------------+ | |
@@ -698,7 +698,7 @@ information indicating that errors have been detected::
The structure of the message is:
+---------------------------------------+-------------+
- | Content + Example |
+ | Content | Example |
+=======================================+=============+
| The memory controller | MC0 |
+---------------------------------------+-------------+
@@ -713,7 +713,7 @@ The structure of the message is:
+---------------------------------------+-------------+
| The error syndrome | 0xb741 |
+---------------------------------------+-------------+
- | Memory row | row 0 +
+ | Memory row | row 0 |
+---------------------------------------+-------------+
| Memory channel | channel 1 |
+---------------------------------------+-------------+
diff --git a/Documentation/admin-guide/thunderbolt.rst b/Documentation/admin-guide/thunderbolt.rst
new file mode 100644
index 000000000000..6a4cd1f159ca
--- /dev/null
+++ b/Documentation/admin-guide/thunderbolt.rst
@@ -0,0 +1,199 @@
+=============
+ Thunderbolt
+=============
+The interface presented here is not meant for end users. Instead there
+should be a userspace tool that handles all the low-level details, keeps
+database of the authorized devices and prompts user for new connections.
+
+More details about the sysfs interface for Thunderbolt devices can be
+found in ``Documentation/ABI/testing/sysfs-bus-thunderbolt``.
+
+Those users who just want to connect any device without any sort of
+manual work, can add following line to
+``/etc/udev/rules.d/99-local.rules``::
+
+ ACTION=="add", SUBSYSTEM=="thunderbolt", ATTR{authorized}=="0", ATTR{authorized}="1"
+
+This will authorize all devices automatically when they appear. However,
+keep in mind that this bypasses the security levels and makes the system
+vulnerable to DMA attacks.
+
+Security levels and how to use them
+-----------------------------------
+Starting from Intel Falcon Ridge Thunderbolt controller there are 4
+security levels available. The reason for these is the fact that the
+connected devices can be DMA masters and thus read contents of the host
+memory without CPU and OS knowing about it. There are ways to prevent
+this by setting up an IOMMU but it is not always available for various
+reasons.
+
+The security levels are as follows:
+
+ none
+ All devices are automatically connected by the firmware. No user
+ approval is needed. In BIOS settings this is typically called
+ *Legacy mode*.
+
+ user
+ User is asked whether the device is allowed to be connected.
+ Based on the device identification information available through
+ ``/sys/bus/thunderbolt/devices``. user then can do the decision.
+ In BIOS settings this is typically called *Unique ID*.
+
+ secure
+ User is asked whether the device is allowed to be connected. In
+ addition to UUID the device (if it supports secure connect) is sent
+ a challenge that should match the expected one based on a random key
+ written to ``key`` sysfs attribute. In BIOS settings this is
+ typically called *One time saved key*.
+
+ dponly
+ The firmware automatically creates tunnels for Display Port and
+ USB. No PCIe tunneling is done. In BIOS settings this is
+ typically called *Display Port Only*.
+
+The current security level can be read from
+``/sys/bus/thunderbolt/devices/domainX/security`` where ``domainX`` is
+the Thunderbolt domain the host controller manages. There is typically
+one domain per Thunderbolt host controller.
+
+If the security level reads as ``user`` or ``secure`` the connected
+device must be authorized by the user before PCIe tunnels are created
+(e.g the PCIe device appears).
+
+Each Thunderbolt device plugged in will appear in sysfs under
+``/sys/bus/thunderbolt/devices``. The device directory carries
+information that can be used to identify the particular device,
+including its name and UUID.
+
+Authorizing devices when security level is ``user`` or ``secure``
+-----------------------------------------------------------------
+When a device is plugged in it will appear in sysfs as follows::
+
+ /sys/bus/thunderbolt/devices/0-1/authorized - 0
+ /sys/bus/thunderbolt/devices/0-1/device - 0x8004
+ /sys/bus/thunderbolt/devices/0-1/device_name - Thunderbolt to FireWire Adapter
+ /sys/bus/thunderbolt/devices/0-1/vendor - 0x1
+ /sys/bus/thunderbolt/devices/0-1/vendor_name - Apple, Inc.
+ /sys/bus/thunderbolt/devices/0-1/unique_id - e0376f00-0300-0100-ffff-ffffffffffff
+
+The ``authorized`` attribute reads 0 which means no PCIe tunnels are
+created yet. The user can authorize the device by simply::
+
+ # echo 1 > /sys/bus/thunderbolt/devices/0-1/authorized
+
+This will create the PCIe tunnels and the device is now connected.
+
+If the device supports secure connect, and the domain security level is
+set to ``secure``, it has an additional attribute ``key`` which can hold
+a random 32 byte value used for authorization and challenging the device in
+future connects::
+
+ /sys/bus/thunderbolt/devices/0-3/authorized - 0
+ /sys/bus/thunderbolt/devices/0-3/device - 0x305
+ /sys/bus/thunderbolt/devices/0-3/device_name - AKiTiO Thunder3 PCIe Box
+ /sys/bus/thunderbolt/devices/0-3/key -
+ /sys/bus/thunderbolt/devices/0-3/vendor - 0x41
+ /sys/bus/thunderbolt/devices/0-3/vendor_name - inXtron
+ /sys/bus/thunderbolt/devices/0-3/unique_id - dc010000-0000-8508-a22d-32ca6421cb16
+
+Notice the key is empty by default.
+
+If the user does not want to use secure connect it can just ``echo 1``
+to the ``authorized`` attribute and the PCIe tunnels will be created in
+the same way than in ``user`` security level.
+
+If the user wants to use secure connect, the first time the device is
+plugged a key needs to be created and send to the device::
+
+ # key=$(openssl rand -hex 32)
+ # echo $key > /sys/bus/thunderbolt/devices/0-3/key
+ # echo 1 > /sys/bus/thunderbolt/devices/0-3/authorized
+
+Now the device is connected (PCIe tunnels are created) and in addition
+the key is stored on the device NVM.
+
+Next time the device is plugged in the user can verify (challenge) the
+device using the same key::
+
+ # echo $key > /sys/bus/thunderbolt/devices/0-3/key
+ # echo 2 > /sys/bus/thunderbolt/devices/0-3/authorized
+
+If the challenge the device returns back matches the one we expect based
+on the key, the device is connected and the PCIe tunnels are created.
+However, if the challenge failed no tunnels are created and error is
+returned to the user.
+
+If the user still wants to connect the device it can either approve
+the device without a key or write new key and write 1 to the
+``authorized`` file to get the new key stored on the device NVM.
+
+Upgrading NVM on Thunderbolt device or host
+-------------------------------------------
+Since most of the functionality is handled in a firmware running on a
+host controller or a device, it is important that the firmware can be
+upgraded to the latest where possible bugs in it have been fixed.
+Typically OEMs provide this firmware from their support site.
+
+There is also a central site which has links where to download firmwares
+for some machines:
+
+ `Thunderbolt Updates <https://thunderbolttechnology.net/updates>`_
+
+Before you upgrade firmware on a device or host, please make sure it is
+the suitable. Failing to do that may render the device (or host) in a
+state where it cannot be used properly anymore without special tools!
+
+Host NVM upgrade on Apple Macs is not supported.
+
+Once the NVM image has been downloaded, you need to plug in a
+Thunderbolt device so that the host controller appears. It does not
+matter which device is connected (unless you are upgrading NVM on a
+device - then you need to connect that particular device).
+
+Note OEM-specific method to power the controller up ("force power") may
+be available for your system in which case there is no need to plug in a
+Thunderbolt device.
+
+After that we can write the firmware to the non-active parts of the NVM
+of the host or device. As an example here is how Intel NUC6i7KYK (Skull
+Canyon) Thunderbolt controller NVM is upgraded::
+
+ # dd if=KYK_TBT_FW_0018.bin of=/sys/bus/thunderbolt/devices/0-0/nvm_non_active0/nvmem
+
+Once the operation completes we can trigger NVM authentication and
+upgrade process as follows::
+
+ # echo 1 > /sys/bus/thunderbolt/devices/0-0/nvm_authenticate
+
+If no errors are returned, the host controller shortly disappears. Once
+it comes back the driver notices it and initiates a full power cycle.
+After a while the host controller appears again and this time it should
+be fully functional.
+
+We can verify that the new NVM firmware is active by running following
+commands::
+
+ # cat /sys/bus/thunderbolt/devices/0-0/nvm_authenticate
+ 0x0
+ # cat /sys/bus/thunderbolt/devices/0-0/nvm_version
+ 18.0
+
+If ``nvm_authenticate`` contains anything else than 0x0 it is the error
+code from the last authentication cycle, which means the authentication
+of the NVM image failed.
+
+Note names of the NVMem devices ``nvm_activeN`` and ``nvm_non_activeN``
+depends on the order they are registered in the NVMem subsystem. N in
+the name is the identifier added by the NVMem subsystem.
+
+Upgrading NVM when host controller is in safe mode
+--------------------------------------------------
+If the existing NVM is not properly authenticated (or is missing) the
+host controller goes into safe mode which means that only available
+functionality is flashing new NVM image. When in this mode the reading
+``nvm_version`` fails with ``ENODATA`` and the device identification
+information is missing.
+
+To recover from this mode, one needs to flash a valid NVM image to the
+host host controller in the same way it is done in the previous chapter.
diff --git a/Documentation/arm/Atmel/README b/Documentation/arm/Atmel/README
index 6ca78f818dbf..afb13c15389d 100644
--- a/Documentation/arm/Atmel/README
+++ b/Documentation/arm/Atmel/README
@@ -16,7 +16,7 @@ git branches/tags and email subject always contain this "at91" sub-string.
AT91 SoCs
---------
-Documentation and detailled datasheet for each product are available on
+Documentation and detailed datasheet for each product are available on
the Atmel website: http://www.atmel.com.
Flavors:
@@ -101,6 +101,42 @@ the Atmel website: http://www.atmel.com.
+ Datasheet
http://www.atmel.com/Images/Atmel-11267-32-bit-Cortex-A5-Microcontroller-SAMA5D2_Datasheet.pdf
+ * ARM Cortex-M7 MCUs
+ - sams70 family
+ - sams70j19
+ - sams70j20
+ - sams70j21
+ - sams70n19
+ - sams70n20
+ - sams70n21
+ - sams70q19
+ - sams70q20
+ - sams70q21
+ + Datasheet
+ http://www.atmel.com/Images/Atmel-11242-32-bit-Cortex-M7-Microcontroller-SAM-S70Q-SAM-S70N-SAM-S70J_Datasheet.pdf
+
+ - samv70 family
+ - samv70j19
+ - samv70j20
+ - samv70n19
+ - samv70n20
+ - samv70q19
+ - samv70q20
+ + Datasheet
+ http://www.atmel.com/Images/Atmel-11297-32-bit-Cortex-M7-Microcontroller-SAM-V70Q-SAM-V70N-SAM-V70J_Datasheet.pdf
+
+ - samv71 family
+ - samv71j19
+ - samv71j20
+ - samv71j21
+ - samv71n19
+ - samv71n20
+ - samv71n21
+ - samv71q19
+ - samv71q20
+ - samv71q21
+ + Datasheet
+ http://www.atmel.com/Images/Atmel-44003-32-bit-Cortex-M7-Microcontroller-SAM-V71Q-SAM-V71N-SAM-V71J_Datasheet.pdf
Linux kernel information
------------------------
diff --git a/Documentation/arm/firmware.txt b/Documentation/arm/firmware.txt
index da6713adac8a..7f175dbb427e 100644
--- a/Documentation/arm/firmware.txt
+++ b/Documentation/arm/firmware.txt
@@ -60,7 +60,7 @@ Example of using a firmware operation:
/* some platform code, e.g. SMP initialization */
- __raw_writel(virt_to_phys(exynos4_secondary_startup),
+ __raw_writel(__pa_symbol(exynos4_secondary_startup),
CPU1_BOOT_REG);
/* Call Exynos specific smc call */
diff --git a/Documentation/arm64/cpu-feature-registers.txt b/Documentation/arm64/cpu-feature-registers.txt
index d1c97f9f51cc..dad411d635d8 100644
--- a/Documentation/arm64/cpu-feature-registers.txt
+++ b/Documentation/arm64/cpu-feature-registers.txt
@@ -179,6 +179,8 @@ infrastructure:
| FCMA | [19-16] | y |
|--------------------------------------------------|
| JSCVT | [15-12] | y |
+ |--------------------------------------------------|
+ | DPB | [3-0] | y |
x--------------------------------------------------x
Appendix I: Example
diff --git a/Documentation/arm64/silicon-errata.txt b/Documentation/arm64/silicon-errata.txt
index 10f2dddbf449..66e8ce14d23d 100644
--- a/Documentation/arm64/silicon-errata.txt
+++ b/Documentation/arm64/silicon-errata.txt
@@ -61,11 +61,15 @@ stable kernels.
| Cavium | ThunderX ITS | #23144 | CAVIUM_ERRATUM_23144 |
| Cavium | ThunderX GICv3 | #23154 | CAVIUM_ERRATUM_23154 |
| Cavium | ThunderX Core | #27456 | CAVIUM_ERRATUM_27456 |
+| Cavium | ThunderX Core | #30115 | CAVIUM_ERRATUM_30115 |
| Cavium | ThunderX SMMUv2 | #27704 | N/A |
+| Cavium | ThunderX2 SMMUv3| #74 | N/A |
+| Cavium | ThunderX2 SMMUv3| #126 | N/A |
| | | | |
| Freescale/NXP | LS2080A/LS1043A | A-008585 | FSL_ERRATUM_A008585 |
| | | | |
| Hisilicon | Hip0{5,6,7} | #161010101 | HISILICON_ERRATUM_161010101 |
+| Hisilicon | Hip0{6,7} | #161010701 | N/A |
| | | | |
| Qualcomm Tech. | Falkor v1 | E1003 | QCOM_FALKOR_ERRATUM_1003 |
| Qualcomm Tech. | Falkor v1 | E1009 | QCOM_FALKOR_ERRATUM_1009 |
diff --git a/Documentation/atomic_bitops.txt b/Documentation/atomic_bitops.txt
new file mode 100644
index 000000000000..5550bfdcce5f
--- /dev/null
+++ b/Documentation/atomic_bitops.txt
@@ -0,0 +1,66 @@
+
+On atomic bitops.
+
+
+While our bitmap_{}() functions are non-atomic, we have a number of operations
+operating on single bits in a bitmap that are atomic.
+
+
+API
+---
+
+The single bit operations are:
+
+Non-RMW ops:
+
+ test_bit()
+
+RMW atomic operations without return value:
+
+ {set,clear,change}_bit()
+ clear_bit_unlock()
+
+RMW atomic operations with return value:
+
+ test_and_{set,clear,change}_bit()
+ test_and_set_bit_lock()
+
+Barriers:
+
+ smp_mb__{before,after}_atomic()
+
+
+All RMW atomic operations have a '__' prefixed variant which is non-atomic.
+
+
+SEMANTICS
+---------
+
+Non-atomic ops:
+
+In particular __clear_bit_unlock() suffers the same issue as atomic_set(),
+which is why the generic version maps to clear_bit_unlock(), see atomic_t.txt.
+
+
+RMW ops:
+
+The test_and_{}_bit() operations return the original value of the bit.
+
+
+ORDERING
+--------
+
+Like with atomic_t, the rule of thumb is:
+
+ - non-RMW operations are unordered;
+
+ - RMW operations that have no return value are unordered;
+
+ - RMW operations that have a return value are fully ordered.
+
+Except for test_and_set_bit_lock() which has ACQUIRE semantics and
+clear_bit_unlock() which has RELEASE semantics.
+
+Since a platform only has a single means of achieving atomic operations
+the same barriers as for atomic_t are used, see atomic_t.txt.
+
diff --git a/Documentation/atomic_t.txt b/Documentation/atomic_t.txt
new file mode 100644
index 000000000000..913396ac5824
--- /dev/null
+++ b/Documentation/atomic_t.txt
@@ -0,0 +1,242 @@
+
+On atomic types (atomic_t atomic64_t and atomic_long_t).
+
+The atomic type provides an interface to the architecture's means of atomic
+RMW operations between CPUs (atomic operations on MMIO are not supported and
+can lead to fatal traps on some platforms).
+
+API
+---
+
+The 'full' API consists of (atomic64_ and atomic_long_ prefixes omitted for
+brevity):
+
+Non-RMW ops:
+
+ atomic_read(), atomic_set()
+ atomic_read_acquire(), atomic_set_release()
+
+
+RMW atomic operations:
+
+Arithmetic:
+
+ atomic_{add,sub,inc,dec}()
+ atomic_{add,sub,inc,dec}_return{,_relaxed,_acquire,_release}()
+ atomic_fetch_{add,sub,inc,dec}{,_relaxed,_acquire,_release}()
+
+
+Bitwise:
+
+ atomic_{and,or,xor,andnot}()
+ atomic_fetch_{and,or,xor,andnot}{,_relaxed,_acquire,_release}()
+
+
+Swap:
+
+ atomic_xchg{,_relaxed,_acquire,_release}()
+ atomic_cmpxchg{,_relaxed,_acquire,_release}()
+ atomic_try_cmpxchg{,_relaxed,_acquire,_release}()
+
+
+Reference count (but please see refcount_t):
+
+ atomic_add_unless(), atomic_inc_not_zero()
+ atomic_sub_and_test(), atomic_dec_and_test()
+
+
+Misc:
+
+ atomic_inc_and_test(), atomic_add_negative()
+ atomic_dec_unless_positive(), atomic_inc_unless_negative()
+
+
+Barriers:
+
+ smp_mb__{before,after}_atomic()
+
+
+
+SEMANTICS
+---------
+
+Non-RMW ops:
+
+The non-RMW ops are (typically) regular LOADs and STOREs and are canonically
+implemented using READ_ONCE(), WRITE_ONCE(), smp_load_acquire() and
+smp_store_release() respectively.
+
+The one detail to this is that atomic_set{}() should be observable to the RMW
+ops. That is:
+
+ C atomic-set
+
+ {
+ atomic_set(v, 1);
+ }
+
+ P1(atomic_t *v)
+ {
+ atomic_add_unless(v, 1, 0);
+ }
+
+ P2(atomic_t *v)
+ {
+ atomic_set(v, 0);
+ }
+
+ exists
+ (v=2)
+
+In this case we would expect the atomic_set() from CPU1 to either happen
+before the atomic_add_unless(), in which case that latter one would no-op, or
+_after_ in which case we'd overwrite its result. In no case is "2" a valid
+outcome.
+
+This is typically true on 'normal' platforms, where a regular competing STORE
+will invalidate a LL/SC or fail a CMPXCHG.
+
+The obvious case where this is not so is when we need to implement atomic ops
+with a lock:
+
+ CPU0 CPU1
+
+ atomic_add_unless(v, 1, 0);
+ lock();
+ ret = READ_ONCE(v->counter); // == 1
+ atomic_set(v, 0);
+ if (ret != u) WRITE_ONCE(v->counter, 0);
+ WRITE_ONCE(v->counter, ret + 1);
+ unlock();
+
+the typical solution is to then implement atomic_set{}() with atomic_xchg().
+
+
+RMW ops:
+
+These come in various forms:
+
+ - plain operations without return value: atomic_{}()
+
+ - operations which return the modified value: atomic_{}_return()
+
+ these are limited to the arithmetic operations because those are
+ reversible. Bitops are irreversible and therefore the modified value
+ is of dubious utility.
+
+ - operations which return the original value: atomic_fetch_{}()
+
+ - swap operations: xchg(), cmpxchg() and try_cmpxchg()
+
+ - misc; the special purpose operations that are commonly used and would,
+ given the interface, normally be implemented using (try_)cmpxchg loops but
+ are time critical and can, (typically) on LL/SC architectures, be more
+ efficiently implemented.
+
+All these operations are SMP atomic; that is, the operations (for a single
+atomic variable) can be fully ordered and no intermediate state is lost or
+visible.
+
+
+ORDERING (go read memory-barriers.txt first)
+--------
+
+The rule of thumb:
+
+ - non-RMW operations are unordered;
+
+ - RMW operations that have no return value are unordered;
+
+ - RMW operations that have a return value are fully ordered;
+
+ - RMW operations that are conditional are unordered on FAILURE,
+ otherwise the above rules apply.
+
+Except of course when an operation has an explicit ordering like:
+
+ {}_relaxed: unordered
+ {}_acquire: the R of the RMW (or atomic_read) is an ACQUIRE
+ {}_release: the W of the RMW (or atomic_set) is a RELEASE
+
+Where 'unordered' is against other memory locations. Address dependencies are
+not defeated.
+
+Fully ordered primitives are ordered against everything prior and everything
+subsequent. Therefore a fully ordered primitive is like having an smp_mb()
+before and an smp_mb() after the primitive.
+
+
+The barriers:
+
+ smp_mb__{before,after}_atomic()
+
+only apply to the RMW ops and can be used to augment/upgrade the ordering
+inherent to the used atomic op. These barriers provide a full smp_mb().
+
+These helper barriers exist because architectures have varying implicit
+ordering on their SMP atomic primitives. For example our TSO architectures
+provide full ordered atomics and these barriers are no-ops.
+
+Thus:
+
+ atomic_fetch_add();
+
+is equivalent to:
+
+ smp_mb__before_atomic();
+ atomic_fetch_add_relaxed();
+ smp_mb__after_atomic();
+
+However the atomic_fetch_add() might be implemented more efficiently.
+
+Further, while something like:
+
+ smp_mb__before_atomic();
+ atomic_dec(&X);
+
+is a 'typical' RELEASE pattern, the barrier is strictly stronger than
+a RELEASE. Similarly for something like:
+
+ atomic_inc(&X);
+ smp_mb__after_atomic();
+
+is an ACQUIRE pattern (though very much not typical), but again the barrier is
+strictly stronger than ACQUIRE. As illustrated:
+
+ C strong-acquire
+
+ {
+ }
+
+ P1(int *x, atomic_t *y)
+ {
+ r0 = READ_ONCE(*x);
+ smp_rmb();
+ r1 = atomic_read(y);
+ }
+
+ P2(int *x, atomic_t *y)
+ {
+ atomic_inc(y);
+ smp_mb__after_atomic();
+ WRITE_ONCE(*x, 1);
+ }
+
+ exists
+ (r0=1 /\ r1=0)
+
+This should not happen; but a hypothetical atomic_inc_acquire() --
+(void)atomic_fetch_inc_acquire() for instance -- would allow the outcome,
+since then:
+
+ P1 P2
+
+ t = LL.acq *y (0)
+ t++;
+ *x = 1;
+ r0 = *x (1)
+ RMB
+ r1 = *y (0)
+ SC *y, t;
+
+is allowed.
diff --git a/Documentation/bcache.txt b/Documentation/bcache.txt
index a9259b562d5c..c0ce64d75bbf 100644
--- a/Documentation/bcache.txt
+++ b/Documentation/bcache.txt
@@ -1,10 +1,15 @@
+============================
+A block layer cache (bcache)
+============================
+
Say you've got a big slow raid 6, and an ssd or three. Wouldn't it be
nice if you could use them as cache... Hence bcache.
Wiki and git repositories are at:
- http://bcache.evilpiepirate.org
- http://evilpiepirate.org/git/linux-bcache.git
- http://evilpiepirate.org/git/bcache-tools.git
+
+ - http://bcache.evilpiepirate.org
+ - http://evilpiepirate.org/git/linux-bcache.git
+ - http://evilpiepirate.org/git/bcache-tools.git
It's designed around the performance characteristics of SSDs - it only allocates
in erase block sized buckets, and it uses a hybrid btree/log to track cached
@@ -37,17 +42,19 @@ to be flushed.
Getting started:
You'll need make-bcache from the bcache-tools repository. Both the cache device
-and backing device must be formatted before use.
+and backing device must be formatted before use::
+
make-bcache -B /dev/sdb
make-bcache -C /dev/sdc
make-bcache has the ability to format multiple devices at the same time - if
you format your backing devices and cache device at the same time, you won't
-have to manually attach:
+have to manually attach::
+
make-bcache -B /dev/sda /dev/sdb -C /dev/sdc
bcache-tools now ships udev rules, and bcache devices are known to the kernel
-immediately. Without udev, you can manually register devices like this:
+immediately. Without udev, you can manually register devices like this::
echo /dev/sdb > /sys/fs/bcache/register
echo /dev/sdc > /sys/fs/bcache/register
@@ -60,16 +67,16 @@ slow devices as bcache backing devices without a cache, and you can choose to ad
a caching device later.
See 'ATTACHING' section below.
-The devices show up as:
+The devices show up as::
/dev/bcache<N>
-As well as (with udev):
+As well as (with udev)::
/dev/bcache/by-uuid/<uuid>
/dev/bcache/by-label/<label>
-To get started:
+To get started::
mkfs.ext4 /dev/bcache0
mount /dev/bcache0 /mnt
@@ -81,13 +88,13 @@ Cache devices are managed as sets; multiple caches per set isn't supported yet
but will allow for mirroring of metadata and dirty data in the future. Your new
cache set shows up as /sys/fs/bcache/<UUID>
-ATTACHING
+Attaching
---------
After your cache device and backing device are registered, the backing device
must be attached to your cache set to enable caching. Attaching a backing
device to a cache set is done thusly, with the UUID of the cache set in
-/sys/fs/bcache:
+/sys/fs/bcache::
echo <CSET-UUID> > /sys/block/bcache0/bcache/attach
@@ -97,7 +104,7 @@ your bcache devices. If a backing device has data in a cache somewhere, the
important if you have writeback caching turned on.
If you're booting up and your cache device is gone and never coming back, you
-can force run the backing device:
+can force run the backing device::
echo 1 > /sys/block/sdb/bcache/running
@@ -110,7 +117,7 @@ but all the cached data will be invalidated. If there was dirty data in the
cache, don't expect the filesystem to be recoverable - you will have massive
filesystem corruption, though ext4's fsck does work miracles.
-ERROR HANDLING
+Error Handling
--------------
Bcache tries to transparently handle IO errors to/from the cache device without
@@ -134,25 +141,27 @@ the backing devices to passthrough mode.
read some of the dirty data, though.
-HOWTO/COOKBOOK
+Howto/cookbook
--------------
A) Starting a bcache with a missing caching device
If registering the backing device doesn't help, it's already there, you just need
-to force it to run without the cache:
+to force it to run without the cache::
+
host:~# echo /dev/sdb1 > /sys/fs/bcache/register
[ 119.844831] bcache: register_bcache() error opening /dev/sdb1: device already registered
Next, you try to register your caching device if it's present. However
if it's absent, or registration fails for some reason, you can still
-start your bcache without its cache, like so:
+start your bcache without its cache, like so::
+
host:/sys/block/sdb/sdb1/bcache# echo 1 > running
Note that this may cause data loss if you were running in writeback mode.
-B) Bcache does not find its cache
+B) Bcache does not find its cache::
host:/sys/block/md5/bcache# echo 0226553a-37cf-41d5-b3ce-8b1e944543a8 > attach
[ 1933.455082] bcache: bch_cached_dev_attach() Couldn't find uuid for md5 in set
@@ -160,7 +169,8 @@ B) Bcache does not find its cache
[ 1933.478179] : cache set not found
In this case, the caching device was simply not registered at boot
-or disappeared and came back, and needs to be (re-)registered:
+or disappeared and came back, and needs to be (re-)registered::
+
host:/sys/block/md5/bcache# echo /dev/sdh2 > /sys/fs/bcache/register
@@ -180,7 +190,8 @@ device is still available at an 8KiB offset. So either via a loopdev
of the backing device created with --offset 8K, or any value defined by
--data-offset when you originally formatted bcache with `make-bcache`.
-For example:
+For example::
+
losetup -o 8192 /dev/loop0 /dev/your_bcache_backing_dev
This should present your unmodified backing device data in /dev/loop0
@@ -191,33 +202,38 @@ cache device without loosing data.
E) Wiping a cache device
-host:~# wipefs -a /dev/sdh2
-16 bytes were erased at offset 0x1018 (bcache)
-they were: c6 85 73 f6 4e 1a 45 ca 82 65 f5 7f 48 ba 6d 81
+::
+
+ host:~# wipefs -a /dev/sdh2
+ 16 bytes were erased at offset 0x1018 (bcache)
+ they were: c6 85 73 f6 4e 1a 45 ca 82 65 f5 7f 48 ba 6d 81
+
+After you boot back with bcache enabled, you recreate the cache and attach it::
-After you boot back with bcache enabled, you recreate the cache and attach it:
-host:~# make-bcache -C /dev/sdh2
-UUID: 7be7e175-8f4c-4f99-94b2-9c904d227045
-Set UUID: 5bc072a8-ab17-446d-9744-e247949913c1
-version: 0
-nbuckets: 106874
-block_size: 1
-bucket_size: 1024
-nr_in_set: 1
-nr_this_dev: 0
-first_bucket: 1
-[ 650.511912] bcache: run_cache_set() invalidating existing data
-[ 650.549228] bcache: register_cache() registered cache device sdh2
+ host:~# make-bcache -C /dev/sdh2
+ UUID: 7be7e175-8f4c-4f99-94b2-9c904d227045
+ Set UUID: 5bc072a8-ab17-446d-9744-e247949913c1
+ version: 0
+ nbuckets: 106874
+ block_size: 1
+ bucket_size: 1024
+ nr_in_set: 1
+ nr_this_dev: 0
+ first_bucket: 1
+ [ 650.511912] bcache: run_cache_set() invalidating existing data
+ [ 650.549228] bcache: register_cache() registered cache device sdh2
-start backing device with missing cache:
-host:/sys/block/md5/bcache# echo 1 > running
+start backing device with missing cache::
-attach new cache:
-host:/sys/block/md5/bcache# echo 5bc072a8-ab17-446d-9744-e247949913c1 > attach
-[ 865.276616] bcache: bch_cached_dev_attach() Caching md5 as bcache0 on set 5bc072a8-ab17-446d-9744-e247949913c1
+ host:/sys/block/md5/bcache# echo 1 > running
+attach new cache::
-F) Remove or replace a caching device
+ host:/sys/block/md5/bcache# echo 5bc072a8-ab17-446d-9744-e247949913c1 > attach
+ [ 865.276616] bcache: bch_cached_dev_attach() Caching md5 as bcache0 on set 5bc072a8-ab17-446d-9744-e247949913c1
+
+
+F) Remove or replace a caching device::
host:/sys/block/sda/sda7/bcache# echo 1 > detach
[ 695.872542] bcache: cached_dev_detach_finish() Caching disabled for sda7
@@ -226,13 +242,15 @@ F) Remove or replace a caching device
wipefs: error: /dev/nvme0n1p4: probing initialization failed: Device or resource busy
Ooops, it's disabled, but not unregistered, so it's still protected
-We need to go and unregister it:
+We need to go and unregister it::
+
host:/sys/fs/bcache/b7ba27a1-2398-4649-8ae3-0959f57ba128# ls -l cache0
lrwxrwxrwx 1 root root 0 Feb 25 18:33 cache0 -> ../../../devices/pci0000:00/0000:00:1d.0/0000:70:00.0/nvme/nvme0/nvme0n1/nvme0n1p4/bcache/
host:/sys/fs/bcache/b7ba27a1-2398-4649-8ae3-0959f57ba128# echo 1 > stop
kernel: [ 917.041908] bcache: cache_set_free() Cache set b7ba27a1-2398-4649-8ae3-0959f57ba128 unregistered
-Now we can wipe it:
+Now we can wipe it::
+
host:~# wipefs -a /dev/nvme0n1p4
/dev/nvme0n1p4: 16 bytes were erased at offset 0x00001018 (bcache): c6 85 73 f6 4e 1a 45 ca 82 65 f5 7f 48 ba 6d 81
@@ -252,40 +270,44 @@ if there are any active backing or caching devices left on it:
1) Is it present in /dev/bcache* ? (there are times where it won't be)
-If so, it's easy:
+ If so, it's easy::
+
host:/sys/block/bcache0/bcache# echo 1 > stop
-2) But if your backing device is gone, this won't work:
+2) But if your backing device is gone, this won't work::
+
host:/sys/block/bcache0# cd bcache
bash: cd: bcache: No such file or directory
-In this case, you may have to unregister the dmcrypt block device that
-references this bcache to free it up:
+ In this case, you may have to unregister the dmcrypt block device that
+ references this bcache to free it up::
+
host:~# dmsetup remove oldds1
bcache: bcache_device_free() bcache0 stopped
bcache: cache_set_free() Cache set 5bc072a8-ab17-446d-9744-e247949913c1 unregistered
-This causes the backing bcache to be removed from /sys/fs/bcache and
-then it can be reused. This would be true of any block device stacking
-where bcache is a lower device.
+ This causes the backing bcache to be removed from /sys/fs/bcache and
+ then it can be reused. This would be true of any block device stacking
+ where bcache is a lower device.
+
+3) In other cases, you can also look in /sys/fs/bcache/::
-3) In other cases, you can also look in /sys/fs/bcache/:
+ host:/sys/fs/bcache# ls -l */{cache?,bdev?}
+ lrwxrwxrwx 1 root root 0 Mar 5 09:39 0226553a-37cf-41d5-b3ce-8b1e944543a8/bdev1 -> ../../../devices/virtual/block/dm-1/bcache/
+ lrwxrwxrwx 1 root root 0 Mar 5 09:39 0226553a-37cf-41d5-b3ce-8b1e944543a8/cache0 -> ../../../devices/virtual/block/dm-4/bcache/
+ lrwxrwxrwx 1 root root 0 Mar 5 09:39 5bc072a8-ab17-446d-9744-e247949913c1/cache0 -> ../../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/ata10/host9/target9:0:0/9:0:0:0/block/sdl/sdl2/bcache/
-host:/sys/fs/bcache# ls -l */{cache?,bdev?}
-lrwxrwxrwx 1 root root 0 Mar 5 09:39 0226553a-37cf-41d5-b3ce-8b1e944543a8/bdev1 -> ../../../devices/virtual/block/dm-1/bcache/
-lrwxrwxrwx 1 root root 0 Mar 5 09:39 0226553a-37cf-41d5-b3ce-8b1e944543a8/cache0 -> ../../../devices/virtual/block/dm-4/bcache/
-lrwxrwxrwx 1 root root 0 Mar 5 09:39 5bc072a8-ab17-446d-9744-e247949913c1/cache0 -> ../../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/ata10/host9/target9:0:0/9:0:0:0/block/sdl/sdl2/bcache/
+ The device names will show which UUID is relevant, cd in that directory
+ and stop the cache::
-The device names will show which UUID is relevant, cd in that directory
-and stop the cache:
host:/sys/fs/bcache/5bc072a8-ab17-446d-9744-e247949913c1# echo 1 > stop
-This will free up bcache references and let you reuse the partition for
-other purposes.
+ This will free up bcache references and let you reuse the partition for
+ other purposes.
-TROUBLESHOOTING PERFORMANCE
+Troubleshooting performance
---------------------------
Bcache has a bunch of config options and tunables. The defaults are intended to
@@ -301,11 +323,13 @@ want for getting the best possible numbers when benchmarking.
raid stripe size to get the disk multiples that you would like.
For example: If you have a 64k stripe size, then the following offset
- would provide alignment for many common RAID5 data spindle counts:
+ would provide alignment for many common RAID5 data spindle counts::
+
64k * 2*2*2*3*3*5*7 bytes = 161280k
That space is wasted, but for only 157.5MB you can grow your RAID 5
- volume to the following data-spindle counts without re-aligning:
+ volume to the following data-spindle counts without re-aligning::
+
3,4,5,6,7,8,9,10,12,14,15,18,20,21 ...
- Bad write performance
@@ -313,9 +337,9 @@ want for getting the best possible numbers when benchmarking.
If write performance is not what you expected, you probably wanted to be
running in writeback mode, which isn't the default (not due to a lack of
maturity, but simply because in writeback mode you'll lose data if something
- happens to your SSD)
+ happens to your SSD)::
- # echo writeback > /sys/block/bcache0/bcache/cache_mode
+ # echo writeback > /sys/block/bcache0/bcache/cache_mode
- Bad performance, or traffic not going to the SSD that you'd expect
@@ -325,13 +349,13 @@ want for getting the best possible numbers when benchmarking.
accessed data out of your cache.
But if you want to benchmark reads from cache, and you start out with fio
- writing an 8 gigabyte test file - so you want to disable that.
+ writing an 8 gigabyte test file - so you want to disable that::
- # echo 0 > /sys/block/bcache0/bcache/sequential_cutoff
+ # echo 0 > /sys/block/bcache0/bcache/sequential_cutoff
- To set it back to the default (4 mb), do
+ To set it back to the default (4 mb), do::
- # echo 4M > /sys/block/bcache0/bcache/sequential_cutoff
+ # echo 4M > /sys/block/bcache0/bcache/sequential_cutoff
- Traffic's still going to the spindle/still getting cache misses
@@ -344,10 +368,10 @@ want for getting the best possible numbers when benchmarking.
throttles traffic if the latency exceeds a threshold (it does this by
cranking down the sequential bypass).
- You can disable this if you need to by setting the thresholds to 0:
+ You can disable this if you need to by setting the thresholds to 0::
- # echo 0 > /sys/fs/bcache/<cache set>/congested_read_threshold_us
- # echo 0 > /sys/fs/bcache/<cache set>/congested_write_threshold_us
+ # echo 0 > /sys/fs/bcache/<cache set>/congested_read_threshold_us
+ # echo 0 > /sys/fs/bcache/<cache set>/congested_write_threshold_us
The default is 2000 us (2 milliseconds) for reads, and 20000 for writes.
@@ -369,7 +393,7 @@ want for getting the best possible numbers when benchmarking.
a fix for the issue there).
-SYSFS - BACKING DEVICE
+Sysfs - backing device
----------------------
Available at /sys/block/<bdev>/bcache, /sys/block/bcache*/bcache and
@@ -454,7 +478,8 @@ writeback_running
still be added to the cache until it is mostly full; only meant for
benchmarking. Defaults to on.
-SYSFS - BACKING DEVICE STATS:
+Sysfs - backing device stats
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
There are directories with these numbers for a running total, as well as
versions that decay over the past day, hour and 5 minutes; they're also
@@ -463,14 +488,11 @@ aggregated in the cache set directory as well.
bypassed
Amount of IO (both reads and writes) that has bypassed the cache
-cache_hits
-cache_misses
-cache_hit_ratio
+cache_hits, cache_misses, cache_hit_ratio
Hits and misses are counted per individual IO as bcache sees them; a
partial hit is counted as a miss.
-cache_bypass_hits
-cache_bypass_misses
+cache_bypass_hits, cache_bypass_misses
Hits and misses for IO that is intended to skip the cache are still counted,
but broken out here.
@@ -482,7 +504,8 @@ cache_miss_collisions
cache_readaheads
Count of times readahead occurred.
-SYSFS - CACHE SET:
+Sysfs - cache set
+~~~~~~~~~~~~~~~~~
Available at /sys/fs/bcache/<cset-uuid>
@@ -520,8 +543,7 @@ flash_vol_create
Echoing a size to this file (in human readable units, k/M/G) creates a thinly
provisioned volume backed by the cache set.
-io_error_halflife
-io_error_limit
+io_error_halflife, io_error_limit
These determines how many errors we accept before disabling the cache.
Each error is decayed by the half life (in # ios). If the decaying count
reaches io_error_limit dirty data is written out and the cache is disabled.
@@ -545,7 +567,8 @@ unregister
Detaches all backing devices and closes the cache devices; if dirty data is
present it will disable writeback caching and wait for it to be flushed.
-SYSFS - CACHE SET INTERNAL:
+Sysfs - cache set internal
+~~~~~~~~~~~~~~~~~~~~~~~~~~
This directory also exposes timings for a number of internal operations, with
separate files for average duration, average frequency, last occurrence and max
@@ -574,7 +597,8 @@ cache_read_races
trigger_gc
Writing to this file forces garbage collection to run.
-SYSFS - CACHE DEVICE:
+Sysfs - Cache device
+~~~~~~~~~~~~~~~~~~~~
Available at /sys/block/<cdev>/bcache
diff --git a/Documentation/block/bfq-iosched.txt b/Documentation/block/bfq-iosched.txt
index 05e2822a80b3..3d6951d63489 100644
--- a/Documentation/block/bfq-iosched.txt
+++ b/Documentation/block/bfq-iosched.txt
@@ -16,14 +16,16 @@ throughput. So, when needed for achieving a lower latency, BFQ builds
schedules that may lead to a lower throughput. If your main or only
goal, for a given device, is to achieve the maximum-possible
throughput at all times, then do switch off all low-latency heuristics
-for that device, by setting low_latency to 0. Full details in Section 3.
+for that device, by setting low_latency to 0. See Section 3 for
+details on how to configure BFQ for the desired tradeoff between
+latency and throughput, or on how to maximize throughput.
On average CPUs, the current version of BFQ can handle devices
performing at most ~30K IOPS; at most ~50 KIOPS on faster CPUs. As a
reference, 30-50 KIOPS correspond to very high bandwidths with
sequential I/O (e.g., 8-12 GB/s if I/O requests are 256 KB large), and
-to 120-200 MB/s with 4KB random I/O. BFQ has not yet been tested on
-multi-queue devices.
+to 120-200 MB/s with 4KB random I/O. BFQ is currently being tested on
+multi-queue devices too.
The table of contents follow. Impatients can just jump to Section 3.
@@ -33,7 +35,7 @@ CONTENTS
1-1 Personal systems
1-2 Server systems
2. How does BFQ work?
-3. What are BFQ's tunable?
+3. What are BFQ's tunables and how to properly configure BFQ?
4. BFQ group scheduling
4-1 Service guarantees provided
4-2 Interface
@@ -145,19 +147,28 @@ plus a lot of code, are borrowed from CFQ.
contrast, BFQ may idle the device for a short time interval,
giving the process the chance to go on being served if it issues
a new request in time. Device idling typically boosts the
- throughput on rotational devices, if processes do synchronous
- and sequential I/O. In addition, under BFQ, device idling is
- also instrumental in guaranteeing the desired throughput
- fraction to processes issuing sync requests (see the description
- of the slice_idle tunable in this document, or [1, 2], for more
- details).
+ throughput on rotational devices and on non-queueing flash-based
+ devices, if processes do synchronous and sequential I/O. In
+ addition, under BFQ, device idling is also instrumental in
+ guaranteeing the desired throughput fraction to processes
+ issuing sync requests (see the description of the slice_idle
+ tunable in this document, or [1, 2], for more details).
- With respect to idling for service guarantees, if several
processes are competing for the device at the same time, but
- all processes (and groups, after the following commit) have
- the same weight, then BFQ guarantees the expected throughput
- distribution without ever idling the device. Throughput is
- thus as high as possible in this common scenario.
+ all processes and groups have the same weight, then BFQ
+ guarantees the expected throughput distribution without ever
+ idling the device. Throughput is thus as high as possible in
+ this common scenario.
+
+ - On flash-based storage with internal queueing of commands
+ (typically NCQ), device idling happens to be always detrimental
+ for throughput. So, with these devices, BFQ performs idling
+ only when strictly needed for service guarantees, i.e., for
+ guaranteeing low latency or fairness. In these cases, overall
+ throughput may be sub-optimal. No solution currently exists to
+ provide both strong service guarantees and optimal throughput
+ on devices with internal queueing.
- If low-latency mode is enabled (default configuration), BFQ
executes some special heuristics to detect interactive and soft
@@ -191,10 +202,7 @@ plus a lot of code, are borrowed from CFQ.
- Queues are scheduled according to a variant of WF2Q+, named
B-WF2Q+, and implemented using an augmented rb-tree to preserve an
O(log N) overall complexity. See [2] for more details. B-WF2Q+ is
- also ready for hierarchical scheduling. However, for a cleaner
- logical breakdown, the code that enables and completes
- hierarchical support is provided in the next commit, which focuses
- exactly on this feature.
+ also ready for hierarchical scheduling, details in Section 4.
- B-WF2Q+ guarantees a tight deviation with respect to an ideal,
perfectly fair, and smooth service. In particular, B-WF2Q+
@@ -249,13 +257,24 @@ plus a lot of code, are borrowed from CFQ.
the Idle class, to prevent it from starving.
-3. What are BFQ's tunable?
-==========================
+3. What are BFQ's tunables and how to properly configure BFQ?
+=============================================================
+
+Most BFQ tunables affect service guarantees (basically latency and
+fairness) and throughput. For full details on how to choose the
+desired tradeoff between service guarantees and throughput, see the
+parameters slice_idle, strict_guarantees and low_latency. For details
+on how to maximise throughput, see slice_idle, timeout_sync and
+max_budget. The other performance-related parameters have been
+inherited from, and have been preserved mostly for compatibility with
+CFQ. So far, no performance improvement has been reported after
+changing the latter parameters in BFQ.
-The tunables back_seek-max, back_seek_penalty, fifo_expire_async and
-fifo_expire_sync below are the same as in CFQ. Their description is
-just copied from that for CFQ. Some considerations in the description
-of slice_idle are copied from CFQ too.
+In particular, the tunables back_seek-max, back_seek_penalty,
+fifo_expire_async and fifo_expire_sync below are the same as in
+CFQ. Their description is just copied from that for CFQ. Some
+considerations in the description of slice_idle are copied from CFQ
+too.
per-process ioprio and weight
-----------------------------
@@ -285,15 +304,17 @@ number of seeks and see improved throughput.
Setting slice_idle to 0 will remove all the idling on queues and one
should see an overall improved throughput on faster storage devices
-like multiple SATA/SAS disks in hardware RAID configuration.
+like multiple SATA/SAS disks in hardware RAID configuration, as well
+as flash-based storage with internal command queueing (and
+parallelism).
So depending on storage and workload, it might be useful to set
slice_idle=0. In general for SATA/SAS disks and software RAID of
SATA/SAS disks keeping slice_idle enabled should be useful. For any
configurations where there are multiple spindles behind single LUN
-(Host based hardware RAID controller or for storage arrays), setting
-slice_idle=0 might end up in better throughput and acceptable
-latencies.
+(Host based hardware RAID controller or for storage arrays), or with
+flash-based fast storage, setting slice_idle=0 might end up in better
+throughput and acceptable latencies.
Idling is however necessary to have service guarantees enforced in
case of differentiated weights or differentiated I/O-request lengths.
@@ -312,13 +333,14 @@ There is an important flipside for idling: apart from the above cases
where it is beneficial also for throughput, idling can severely impact
throughput. One important case is random workload. Because of this
issue, BFQ tends to avoid idling as much as possible, when it is not
-beneficial also for throughput. As a consequence of this behavior, and
-of further issues described for the strict_guarantees tunable,
-short-term service guarantees may be occasionally violated. And, in
-some cases, these guarantees may be more important than guaranteeing
-maximum throughput. For example, in video playing/streaming, a very
-low drop rate may be more important than maximum throughput. In these
-cases, consider setting the strict_guarantees parameter.
+beneficial also for throughput (as detailed in Section 2). As a
+consequence of this behavior, and of further issues described for the
+strict_guarantees tunable, short-term service guarantees may be
+occasionally violated. And, in some cases, these guarantees may be
+more important than guaranteeing maximum throughput. For example, in
+video playing/streaming, a very low drop rate may be more important
+than maximum throughput. In these cases, consider setting the
+strict_guarantees parameter.
strict_guarantees
-----------------
@@ -420,6 +442,13 @@ The default value is 0, which enables auto-tuning: BFQ sets max_budget
to the maximum number of sectors that can be served during
timeout_sync, according to the estimated peak rate.
+For specific devices, some users have occasionally reported to have
+reached a higher throughput by setting max_budget explicitly, i.e., by
+setting max_budget to a higher value than 0. In particular, they have
+set max_budget to higher values than those to which BFQ would have set
+it with auto-tuning. An alternative way to achieve this goal is to
+just increase the value of timeout_sync, leaving max_budget equal to 0.
+
weights
-------
@@ -427,51 +456,6 @@ Read-only parameter, used to show the weights of the currently active
BFQ queues.
-wr_ tunables
-------------
-
-BFQ exports a few parameters to control/tune the behavior of
-low-latency heuristics.
-
-wr_coeff
-
-Factor by which the weight of a weight-raised queue is multiplied. If
-the queue is deemed soft real-time, then the weight is further
-multiplied by an additional, constant factor.
-
-wr_max_time
-
-Maximum duration of a weight-raising period for an interactive task
-(ms). If set to zero (default value), then this value is computed
-automatically, as a function of the peak rate of the device. In any
-case, when the value of this parameter is read, it always reports the
-current duration, regardless of whether it has been set manually or
-computed automatically.
-
-wr_max_softrt_rate
-
-Maximum service rate below which a queue is deemed to be associated
-with a soft real-time application, and is then weight-raised
-accordingly (sectors/sec).
-
-wr_min_idle_time
-
-Minimum idle period after which interactive weight-raising may be
-reactivated for a queue (in ms).
-
-wr_rt_max_time
-
-Maximum weight-raising duration for soft real-time queues (in ms). The
-start time from which this duration is considered is automatically
-moved forward if the queue is detected to be still soft real-time
-before the current soft real-time weight-raising period finishes.
-
-wr_min_inter_arr_async
-
-Minimum period between I/O request arrivals after which weight-raising
-may be reactivated for an already busy async queue (in ms).
-
-
4. Group scheduling with BFQ
============================
diff --git a/Documentation/block/biodoc.txt b/Documentation/block/biodoc.txt
index 01ddeaf64b0f..9490f2845f06 100644
--- a/Documentation/block/biodoc.txt
+++ b/Documentation/block/biodoc.txt
@@ -632,7 +632,7 @@ to i/o submission, if the bio fields are likely to be accessed after the
i/o is issued (since the bio may otherwise get freed in case i/o completion
happens in the meantime).
-The bio_clone() routine may be used to duplicate a bio, where the clone
+The bio_clone_fast() routine may be used to duplicate a bio, where the clone
shares the bio_vec_list with the original bio (i.e. both point to the
same bio_vec_list). This would typically be used for splitting i/o requests
in lvm or md.
diff --git a/Documentation/block/data-integrity.txt b/Documentation/block/data-integrity.txt
index f56ec97f0d14..934c44ea0c57 100644
--- a/Documentation/block/data-integrity.txt
+++ b/Documentation/block/data-integrity.txt
@@ -192,7 +192,7 @@ will require extra work due to the application tag.
supported by the block device.
- int bio_integrity_prep(bio);
+ bool bio_integrity_prep(bio);
To generate IMD for WRITE and to set up buffers for READ, the
filesystem must call bio_integrity_prep(bio).
@@ -201,9 +201,7 @@ will require extra work due to the application tag.
sector must be set, and the bio should have all data pages
added. It is up to the caller to ensure that the bio does not
change while I/O is in progress.
-
- bio_integrity_prep() should only be called if
- bio_integrity_enabled() returned 1.
+ Complete bio with error if prepare failed for some reson.
5.3 PASSING EXISTING INTEGRITY METADATA
diff --git a/Documentation/blockdev/cciss.txt b/Documentation/blockdev/cciss.txt
deleted file mode 100644
index 3a5477cc456e..000000000000
--- a/Documentation/blockdev/cciss.txt
+++ /dev/null
@@ -1,194 +0,0 @@
-This driver is for Compaq's SMART Array Controllers.
-
-Supported Cards:
-----------------
-
-This driver is known to work with the following cards:
-
- * SA 5300
- * SA 5i
- * SA 532
- * SA 5312
- * SA 641
- * SA 642
- * SA 6400
- * SA 6400 U320 Expansion Module
- * SA 6i
- * SA P600
- * SA P800
- * SA E400
- * SA P400i
- * SA E200
- * SA E200i
- * SA E500
- * SA P700m
- * SA P212
- * SA P410
- * SA P410i
- * SA P411
- * SA P812
- * SA P712m
- * SA P711m
-
-Detecting drive failures:
--------------------------
-
-To get the status of logical volumes and to detect physical drive
-failures, you can use the cciss_vol_status program found here:
-http://cciss.sourceforge.net/#cciss_utils
-
-Device Naming:
---------------
-
-If nodes are not already created in the /dev/cciss directory, run as root:
-
-# cd /dev
-# ./MAKEDEV cciss
-
-You need some entries in /dev for the cciss device. The MAKEDEV script
-can make device nodes for you automatically. Currently the device setup
-is as follows:
-
-Major numbers:
- 104 cciss0
- 105 cciss1
- 106 cciss2
- 105 cciss3
- 108 cciss4
- 109 cciss5
- 110 cciss6
- 111 cciss7
-
-Minor numbers:
- b7 b6 b5 b4 b3 b2 b1 b0
- |----+----| |----+----|
- | |
- | +-------- Partition ID (0=wholedev, 1-15 partition)
- |
- +-------------------- Logical Volume number
-
-The device naming scheme is:
-/dev/cciss/c0d0 Controller 0, disk 0, whole device
-/dev/cciss/c0d0p1 Controller 0, disk 0, partition 1
-/dev/cciss/c0d0p2 Controller 0, disk 0, partition 2
-/dev/cciss/c0d0p3 Controller 0, disk 0, partition 3
-
-/dev/cciss/c1d1 Controller 1, disk 1, whole device
-/dev/cciss/c1d1p1 Controller 1, disk 1, partition 1
-/dev/cciss/c1d1p2 Controller 1, disk 1, partition 2
-/dev/cciss/c1d1p3 Controller 1, disk 1, partition 3
-
-CCISS simple mode support
--------------------------
-
-The "cciss_simple_mode=1" boot parameter may be used to prevent the driver
-from putting the controller into "performant" mode. The difference is that
-with simple mode, each command completion requires an interrupt, while with
-"performant mode" (the default, and ordinarily better performing) it is
-possible to have multiple command completions indicated by a single
-interrupt.
-
-SCSI tape drive and medium changer support
-------------------------------------------
-
-SCSI sequential access devices and medium changer devices are supported and
-appropriate device nodes are automatically created. (e.g.
-/dev/st0, /dev/st1, etc. See the "st" man page for more details.)
-You must enable "SCSI tape drive support for Smart Array 5xxx" and
-"SCSI support" in your kernel configuration to be able to use SCSI
-tape drives with your Smart Array 5xxx controller.
-
-Additionally, note that the driver will engage the SCSI core at init
-time if any tape drives or medium changers are detected. The driver may
-also be directed to dynamically engage the SCSI core via the /proc filesystem
-entry which the "block" side of the driver creates as
-/proc/driver/cciss/cciss* at runtime. This is best done via a script.
-
-For example:
-
- for x in /proc/driver/cciss/cciss[0-9]*
- do
- echo "engage scsi" > $x
- done
-
-Once the SCSI core is engaged by the driver, it cannot be disengaged
-(except by unloading the driver, if it happens to be linked as a module.)
-
-Note also that if no sequential access devices or medium changers are
-detected, the SCSI core will not be engaged by the action of the above
-script.
-
-Hot plug support for SCSI tape drives
--------------------------------------
-
-Hot plugging of SCSI tape drives is supported, with some caveats.
-The cciss driver must be informed that changes to the SCSI bus
-have been made. This may be done via the /proc filesystem.
-For example:
-
- echo "rescan" > /proc/scsi/cciss0/1
-
-This causes the driver to query the adapter about changes to the
-physical SCSI buses and/or fibre channel arbitrated loop and the
-driver to make note of any new or removed sequential access devices
-or medium changers. The driver will output messages indicating what
-devices have been added or removed and the controller, bus, target and
-lun used to address the device. It then notifies the SCSI mid layer
-of these changes.
-
-Note that the naming convention of the /proc filesystem entries
-contains a number in addition to the driver name. (E.g. "cciss0"
-instead of just "cciss" which you might expect.)
-
-Note: ONLY sequential access devices and medium changers are presented
-as SCSI devices to the SCSI mid layer by the cciss driver. Specifically,
-physical SCSI disk drives are NOT presented to the SCSI mid layer. The
-physical SCSI disk drives are controlled directly by the array controller
-hardware and it is important to prevent the kernel from attempting to directly
-access these devices too, as if the array controller were merely a SCSI
-controller in the same way that we are allowing it to access SCSI tape drives.
-
-SCSI error handling for tape drives and medium changers
--------------------------------------------------------
-
-The linux SCSI mid layer provides an error handling protocol which
-kicks into gear whenever a SCSI command fails to complete within a
-certain amount of time (which can vary depending on the command).
-The cciss driver participates in this protocol to some extent. The
-normal protocol is a four step process. First the device is told
-to abort the command. If that doesn't work, the device is reset.
-If that doesn't work, the SCSI bus is reset. If that doesn't work
-the host bus adapter is reset. Because the cciss driver is a block
-driver as well as a SCSI driver and only the tape drives and medium
-changers are presented to the SCSI mid layer, and unlike more
-straightforward SCSI drivers, disk i/o continues through the block
-side during the SCSI error recovery process, the cciss driver only
-implements the first two of these actions, aborting the command, and
-resetting the device. Additionally, most tape drives will not oblige
-in aborting commands, and sometimes it appears they will not even
-obey a reset command, though in most circumstances they will. In
-the case that the command cannot be aborted and the device cannot be
-reset, the device will be set offline.
-
-In the event the error handling code is triggered and a tape drive is
-successfully reset or the tardy command is successfully aborted, the
-tape drive may still not allow i/o to continue until some command
-is issued which positions the tape to a known position. Typically you
-must rewind the tape (by issuing "mt -f /dev/st0 rewind" for example)
-before i/o can proceed again to a tape drive which was reset.
-
-There is a cciss_tape_cmds module parameter which can be used to make cciss
-allocate more commands for use by tape drives. Ordinarily only a few commands
-(6) are allocated for tape drives because tape drives are slow and
-infrequently used and the primary purpose of Smart Array controllers is to
-act as a RAID controller for disk drives, so the vast majority of commands
-are allocated for disk devices. However, if you have more than a few tape
-drives attached to a smart array, the default number of commands may not be
-enough (for example, if you have 8 tape drives, you could only rewind 6
-at one time with the default number of commands.) The cciss_tape_cmds module
-parameter allows more commands (up to 16 more) to be allocated for use by
-tape drives. For example:
-
- insmod cciss.ko cciss_tape_cmds=16
-
-Or, as a kernel boot parameter passed in via grub: cciss.cciss_tape_cmds=8
diff --git a/Documentation/blockdev/zram.txt b/Documentation/blockdev/zram.txt
index 4fced8a21307..257e65714c6a 100644
--- a/Documentation/blockdev/zram.txt
+++ b/Documentation/blockdev/zram.txt
@@ -168,6 +168,7 @@ max_comp_streams RW the number of possible concurrent compress operations
comp_algorithm RW show and change the compression algorithm
compact WO trigger memory compaction
debug_stat RO this file is used for zram debugging purposes
+backing_dev RW set up backend storage for zram to write out
User space is advised to use the following files to read the device statistics.
@@ -231,5 +232,15 @@ line of text and contains the following stats separated by whitespace:
resets the disksize to zero. You must set the disksize again
before reusing the device.
+* Optional Feature
+
+= writeback
+
+With incompressible pages, there is no memory saving with zram.
+Instead, with CONFIG_ZRAM_WRITEBACK, zram can write incompressible page
+to backing storage rather than keeping it in memory.
+User should set up backing device via /sys/block/zramX/backing_dev
+before disksize setting.
+
Nitin Gupta
ngupta@vflare.org
diff --git a/Documentation/bt8xxgpio.txt b/Documentation/bt8xxgpio.txt
index d8297e4ebd26..a845feb074de 100644
--- a/Documentation/bt8xxgpio.txt
+++ b/Documentation/bt8xxgpio.txt
@@ -1,12 +1,8 @@
-===============================================================
-== BT8XXGPIO driver ==
-== ==
-== A driver for a selfmade cheap BT8xx based PCI GPIO-card ==
-== ==
-== For advanced documentation, see ==
-== http://www.bu3sch.de/btgpio.php ==
-===============================================================
+===================================================================
+A driver for a selfmade cheap BT8xx based PCI GPIO-card (bt8xxgpio)
+===================================================================
+For advanced documentation, see http://www.bu3sch.de/btgpio.php
A generic digital 24-port PCI GPIO card can be built out of an ordinary
Brooktree bt848, bt849, bt878 or bt879 based analog TV tuner card. The
@@ -17,9 +13,8 @@ The bt8xx chip does have 24 digital GPIO ports.
These ports are accessible via 24 pins on the SMD chip package.
-==============================================
-== How to physically access the GPIO pins ==
-==============================================
+How to physically access the GPIO pins
+======================================
The are several ways to access these pins. One might unsolder the whole chip
and put it on a custom PCI board, or one might only unsolder each individual
@@ -27,7 +22,7 @@ GPIO pin and solder that to some tiny wire. As the chip package really is tiny
there are some advanced soldering skills needed in any case.
The physical pinouts are drawn in the following ASCII art.
-The GPIO pins are marked with G00-G23
+The GPIO pins are marked with G00-G23::
G G G G G G G G G G G G G G G G G G
0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
diff --git a/Documentation/btmrvl.txt b/Documentation/btmrvl.txt
index 34916a46c099..ec57740ead0c 100644
--- a/Documentation/btmrvl.txt
+++ b/Documentation/btmrvl.txt
@@ -1,18 +1,16 @@
-=======================================================================
- README for btmrvl driver
-=======================================================================
-
+=============
+btmrvl driver
+=============
All commands are used via debugfs interface.
-=====================
-Set/get driver configurations:
+Set/get driver configurations
+=============================
Path: /debug/btmrvl/config/
-gpiogap=[n]
-hscfgcmd
- These commands are used to configure the host sleep parameters.
+gpiogap=[n], hscfgcmd
+ These commands are used to configure the host sleep parameters::
bit 8:0 -- Gap
bit 16:8 -- GPIO
@@ -23,7 +21,8 @@ hscfgcmd
where Gap is the gap in milli seconds between wakeup signal and
wakeup event, or 0xff for special host sleep setting.
- Usage:
+ Usage::
+
# Use SDIO interface to wake up the host and set GAP to 0x80:
echo 0xff80 > /debug/btmrvl/config/gpiogap
echo 1 > /debug/btmrvl/config/hscfgcmd
@@ -32,15 +31,16 @@ hscfgcmd
echo 0x03ff > /debug/btmrvl/config/gpiogap
echo 1 > /debug/btmrvl/config/hscfgcmd
-psmode=[n]
-pscmd
+psmode=[n], pscmd
These commands are used to enable/disable auto sleep mode
- where the option is:
+ where the option is::
+
1 -- Enable auto sleep mode
0 -- Disable auto sleep mode
- Usage:
+ Usage::
+
# Enable auto sleep mode
echo 1 > /debug/btmrvl/config/psmode
echo 1 > /debug/btmrvl/config/pscmd
@@ -50,15 +50,16 @@ pscmd
echo 1 > /debug/btmrvl/config/pscmd
-hsmode=[n]
-hscmd
+hsmode=[n], hscmd
These commands are used to enable host sleep or wake up firmware
- where the option is:
+ where the option is::
+
1 -- Enable host sleep
0 -- Wake up firmware
- Usage:
+ Usage::
+
# Enable host sleep
echo 1 > /debug/btmrvl/config/hsmode
echo 1 > /debug/btmrvl/config/hscmd
@@ -68,12 +69,13 @@ hscmd
echo 1 > /debug/btmrvl/config/hscmd
-======================
-Get driver status:
+Get driver status
+=================
Path: /debug/btmrvl/status/
-Usage:
+Usage::
+
cat /debug/btmrvl/status/<args>
where the args are:
@@ -90,14 +92,17 @@ hsstate
txdnldrdy
This command displays the value of Tx download ready flag.
-
-=====================
+Issuing a raw hci command
+=========================
Use hcitool to issue raw hci command, refer to hcitool manual
- Usage: Hcitool cmd <ogf> <ocf> [Parameters]
+Usage::
+
+ Hcitool cmd <ogf> <ocf> [Parameters]
+
+Interface Control Command::
- Interface Control Command
hcitool cmd 0x3f 0x5b 0xf5 0x01 0x00 --Enable All interface
hcitool cmd 0x3f 0x5b 0xf5 0x01 0x01 --Enable Wlan interface
hcitool cmd 0x3f 0x5b 0xf5 0x01 0x02 --Enable BT interface
@@ -105,13 +110,13 @@ Use hcitool to issue raw hci command, refer to hcitool manual
hcitool cmd 0x3f 0x5b 0xf5 0x00 0x01 --Disable Wlan interface
hcitool cmd 0x3f 0x5b 0xf5 0x00 0x02 --Disable BT interface
-=======================================================================
-
+SD8688 firmware
+===============
-SD8688 firmware:
+Images:
-/lib/firmware/sd8688_helper.bin
-/lib/firmware/sd8688.bin
+- /lib/firmware/sd8688_helper.bin
+- /lib/firmware/sd8688.bin
The images can be downloaded from:
diff --git a/Documentation/bus-virt-phys-mapping.txt b/Documentation/bus-virt-phys-mapping.txt
index 2bc55ff3b4d1..4bb07c2f3e7d 100644
--- a/Documentation/bus-virt-phys-mapping.txt
+++ b/Documentation/bus-virt-phys-mapping.txt
@@ -1,17 +1,27 @@
-[ NOTE: The virt_to_bus() and bus_to_virt() functions have been
+==========================================================
+How to access I/O mapped memory from within device drivers
+==========================================================
+
+:Author: Linus
+
+.. warning::
+
+ The virt_to_bus() and bus_to_virt() functions have been
superseded by the functionality provided by the PCI DMA interface
(see Documentation/DMA-API-HOWTO.txt). They continue
to be documented below for historical purposes, but new code
- must not use them. --davidm 00/12/12 ]
+ must not use them. --davidm 00/12/12
-[ This is a mail message in response to a query on IO mapping, thus the
- strange format for a "document" ]
+::
+
+ [ This is a mail message in response to a query on IO mapping, thus the
+ strange format for a "document" ]
The AHA-1542 is a bus-master device, and your patch makes the driver give the
controller the physical address of the buffers, which is correct on x86
(because all bus master devices see the physical memory mappings directly).
-However, on many setups, there are actually _three_ different ways of looking
+However, on many setups, there are actually **three** different ways of looking
at memory addresses, and in this case we actually want the third, the
so-called "bus address".
@@ -38,7 +48,7 @@ because the memory and the devices share the same address space, and that is
not generally necessarily true on other PCI/ISA setups.
Now, just as an example, on the PReP (PowerPC Reference Platform), the
-CPU sees a memory map something like this (this is from memory):
+CPU sees a memory map something like this (this is from memory)::
0-2 GB "real memory"
2 GB-3 GB "system IO" (inb/out and similar accesses on x86)
@@ -52,7 +62,7 @@ So when the CPU wants any bus master to write to physical memory 0, it
has to give the master address 0x80000000 as the memory address.
So, for example, depending on how the kernel is actually mapped on the
-PPC, you can end up with a setup like this:
+PPC, you can end up with a setup like this::
physical address: 0
virtual address: 0xC0000000
@@ -61,7 +71,7 @@ PPC, you can end up with a setup like this:
where all the addresses actually point to the same thing. It's just seen
through different translations..
-Similarly, on the Alpha, the normal translation is
+Similarly, on the Alpha, the normal translation is::
physical address: 0
virtual address: 0xfffffc0000000000
@@ -70,7 +80,7 @@ Similarly, on the Alpha, the normal translation is
(but there are also Alphas where the physical address and the bus address
are the same).
-Anyway, the way to look up all these translations, you do
+Anyway, the way to look up all these translations, you do::
#include <asm/io.h>
@@ -81,8 +91,8 @@ Anyway, the way to look up all these translations, you do
Now, when do you need these?
-You want the _virtual_ address when you are actually going to access that
-pointer from the kernel. So you can have something like this:
+You want the **virtual** address when you are actually going to access that
+pointer from the kernel. So you can have something like this::
/*
* this is the hardware "mailbox" we use to communicate with
@@ -104,7 +114,7 @@ pointer from the kernel. So you can have something like this:
...
on the other hand, you want the bus address when you have a buffer that
-you want to give to the controller:
+you want to give to the controller::
/* ask the controller to read the sense status into "sense_buffer" */
mbox.bufstart = virt_to_bus(&sense_buffer);
@@ -112,7 +122,7 @@ you want to give to the controller:
mbox.status = 0;
notify_controller(&mbox);
-And you generally _never_ want to use the physical address, because you can't
+And you generally **never** want to use the physical address, because you can't
use that from the CPU (the CPU only uses translated virtual addresses), and
you can't use it from the bus master.
@@ -124,8 +134,10 @@ be remapped as measured in units of pages, a.k.a. the pfn (the memory
management layer doesn't know about devices outside the CPU, so it
shouldn't need to know about "bus addresses" etc).
-NOTE NOTE NOTE! The above is only one part of the whole equation. The above
-only talks about "real memory", that is, CPU memory (RAM).
+.. note::
+
+ The above is only one part of the whole equation. The above
+ only talks about "real memory", that is, CPU memory (RAM).
There is a completely different type of memory too, and that's the "shared
memory" on the PCI or ISA bus. That's generally not RAM (although in the case
@@ -137,20 +149,22 @@ whatever, and there is only one way to access it: the readb/writeb and
related functions. You should never take the address of such memory, because
there is really nothing you can do with such an address: it's not
conceptually in the same memory space as "real memory" at all, so you cannot
-just dereference a pointer. (Sadly, on x86 it _is_ in the same memory space,
+just dereference a pointer. (Sadly, on x86 it **is** in the same memory space,
so on x86 it actually works to just deference a pointer, but it's not
portable).
-For such memory, you can do things like
+For such memory, you can do things like:
+
+ - reading::
- - reading:
/*
* read first 32 bits from ISA memory at 0xC0000, aka
* C000:0000 in DOS terms
*/
unsigned int signature = isa_readl(0xC0000);
- - remapping and writing:
+ - remapping and writing::
+
/*
* remap framebuffer PCI memory area at 0xFC000000,
* size 1MB, so that we can access it: We can directly
@@ -165,7 +179,8 @@ For such memory, you can do things like
/* unmap when we unload the driver */
iounmap(baseptr);
- - copying and clearing:
+ - copying and clearing::
+
/* get the 6-byte Ethernet address at ISA address E000:0040 */
memcpy_fromio(kernel_buffer, 0xE0040, 6);
/* write a packet to the driver */
@@ -181,10 +196,10 @@ happy that your driver works ;)
Note that kernel versions 2.0.x (and earlier) mistakenly called the
ioremap() function "vremap()". ioremap() is the proper name, but I
didn't think straight when I wrote it originally. People who have to
-support both can do something like:
+support both can do something like::
/* support old naming silliness */
- #if LINUX_VERSION_CODE < 0x020100
+ #if LINUX_VERSION_CODE < 0x020100
#define ioremap vremap
#define iounmap vfree
#endif
@@ -196,13 +211,10 @@ And the above sounds worse than it really is. Most real drivers really
don't do all that complex things (or rather: the complexity is not so
much in the actual IO accesses as in error handling and timeouts etc).
It's generally not hard to fix drivers, and in many cases the code
-actually looks better afterwards:
+actually looks better afterwards::
unsigned long signature = *(unsigned int *) 0xC0000;
vs
unsigned long signature = readl(0xC0000);
I think the second version actually is more readable, no?
-
- Linus
-
diff --git a/Documentation/cachetlb.txt b/Documentation/cachetlb.txt
index 3f9f808b5119..6eb9d3f090cd 100644
--- a/Documentation/cachetlb.txt
+++ b/Documentation/cachetlb.txt
@@ -1,7 +1,8 @@
- Cache and TLB Flushing
- Under Linux
+==================================
+Cache and TLB Flushing Under Linux
+==================================
- David S. Miller <davem@redhat.com>
+:Author: David S. Miller <davem@redhat.com>
This document describes the cache/tlb flushing interfaces called
by the Linux VM subsystem. It enumerates over each interface,
@@ -28,7 +29,7 @@ Therefore when software page table changes occur, the kernel will
invoke one of the following flush methods _after_ the page table
changes occur:
-1) void flush_tlb_all(void)
+1) ``void flush_tlb_all(void)``
The most severe flush of all. After this interface runs,
any previous page table modification whatsoever will be
@@ -37,7 +38,7 @@ changes occur:
This is usually invoked when the kernel page tables are
changed, since such translations are "global" in nature.
-2) void flush_tlb_mm(struct mm_struct *mm)
+2) ``void flush_tlb_mm(struct mm_struct *mm)``
This interface flushes an entire user address space from
the TLB. After running, this interface must make sure that
@@ -49,8 +50,8 @@ changes occur:
page table operations such as what happens during
fork, and exec.
-3) void flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
+3) ``void flush_tlb_range(struct vm_area_struct *vma,
+ unsigned long start, unsigned long end)``
Here we are flushing a specific range of (user) virtual
address translations from the TLB. After running, this
@@ -69,7 +70,7 @@ changes occur:
call flush_tlb_page (see below) for each entry which may be
modified.
-4) void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
+4) ``void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)``
This time we need to remove the PAGE_SIZE sized translation
from the TLB. The 'vma' is the backing structure used by
@@ -87,8 +88,8 @@ changes occur:
This is used primarily during fault processing.
-5) void update_mmu_cache(struct vm_area_struct *vma,
- unsigned long address, pte_t *ptep)
+5) ``void update_mmu_cache(struct vm_area_struct *vma,
+ unsigned long address, pte_t *ptep)``
At the end of every page fault, this routine is invoked to
tell the architecture specific code that a translation
@@ -100,7 +101,7 @@ changes occur:
translations for software managed TLB configurations.
The sparc64 port currently does this.
-6) void tlb_migrate_finish(struct mm_struct *mm)
+6) ``void tlb_migrate_finish(struct mm_struct *mm)``
This interface is called at the end of an explicit
process migration. This interface provides a hook
@@ -112,7 +113,7 @@ changes occur:
Next, we have the cache flushing interfaces. In general, when Linux
is changing an existing virtual-->physical mapping to a new value,
-the sequence will be in one of the following forms:
+the sequence will be in one of the following forms::
1) flush_cache_mm(mm);
change_all_page_tables_of(mm);
@@ -143,7 +144,7 @@ and have no dependency on translation information.
Here are the routines, one by one:
-1) void flush_cache_mm(struct mm_struct *mm)
+1) ``void flush_cache_mm(struct mm_struct *mm)``
This interface flushes an entire user address space from
the caches. That is, after running, there will be no cache
@@ -152,7 +153,7 @@ Here are the routines, one by one:
This interface is used to handle whole address space
page table operations such as what happens during exit and exec.
-2) void flush_cache_dup_mm(struct mm_struct *mm)
+2) ``void flush_cache_dup_mm(struct mm_struct *mm)``
This interface flushes an entire user address space from
the caches. That is, after running, there will be no cache
@@ -164,8 +165,8 @@ Here are the routines, one by one:
This option is separate from flush_cache_mm to allow some
optimizations for VIPT caches.
-3) void flush_cache_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
+3) ``void flush_cache_range(struct vm_area_struct *vma,
+ unsigned long start, unsigned long end)``
Here we are flushing a specific range of (user) virtual
addresses from the cache. After running, there will be no
@@ -181,7 +182,7 @@ Here are the routines, one by one:
call flush_cache_page (see below) for each entry which may be
modified.
-4) void flush_cache_page(struct vm_area_struct *vma, unsigned long addr, unsigned long pfn)
+4) ``void flush_cache_page(struct vm_area_struct *vma, unsigned long addr, unsigned long pfn)``
This time we need to remove a PAGE_SIZE sized range
from the cache. The 'vma' is the backing structure used by
@@ -202,7 +203,7 @@ Here are the routines, one by one:
This is used primarily during fault processing.
-5) void flush_cache_kmaps(void)
+5) ``void flush_cache_kmaps(void)``
This routine need only be implemented if the platform utilizes
highmem. It will be called right before all of the kmaps
@@ -214,8 +215,8 @@ Here are the routines, one by one:
This routing should be implemented in asm/highmem.h
-6) void flush_cache_vmap(unsigned long start, unsigned long end)
- void flush_cache_vunmap(unsigned long start, unsigned long end)
+6) ``void flush_cache_vmap(unsigned long start, unsigned long end)``
+ ``void flush_cache_vunmap(unsigned long start, unsigned long end)``
Here in these two interfaces we are flushing a specific range
of (kernel) virtual addresses from the cache. After running,
@@ -243,8 +244,10 @@ size). This setting will force the SYSv IPC layer to only allow user
processes to mmap shared memory at address which are a multiple of
this value.
-NOTE: This does not fix shared mmaps, check out the sparc64 port for
-one way to solve this (in particular SPARC_FLAG_MMAPSHARED).
+.. note::
+
+ This does not fix shared mmaps, check out the sparc64 port for
+ one way to solve this (in particular SPARC_FLAG_MMAPSHARED).
Next, you have to solve the D-cache aliasing issue for all
other cases. Please keep in mind that fact that, for a given page
@@ -255,8 +258,8 @@ physical page into its address space, by implication the D-cache
aliasing problem has the potential to exist since the kernel already
maps this page at its virtual address.
- void copy_user_page(void *to, void *from, unsigned long addr, struct page *page)
- void clear_user_page(void *to, unsigned long addr, struct page *page)
+ ``void copy_user_page(void *to, void *from, unsigned long addr, struct page *page)``
+ ``void clear_user_page(void *to, unsigned long addr, struct page *page)``
These two routines store data in user anonymous or COW
pages. It allows a port to efficiently avoid D-cache alias
@@ -276,14 +279,16 @@ maps this page at its virtual address.
If D-cache aliasing is not an issue, these two routines may
simply call memcpy/memset directly and do nothing more.
- void flush_dcache_page(struct page *page)
+ ``void flush_dcache_page(struct page *page)``
Any time the kernel writes to a page cache page, _OR_
the kernel is about to read from a page cache page and
user space shared/writable mappings of this page potentially
exist, this routine is called.
- NOTE: This routine need only be called for page cache pages
+ .. note::
+
+ This routine need only be called for page cache pages
which can potentially ever be mapped into the address
space of a user process. So for example, VFS layer code
handling vfs symlinks in the page cache need not call
@@ -322,18 +327,19 @@ maps this page at its virtual address.
made of this flag bit, and if set the flush is done and the flag
bit is cleared.
- IMPORTANT NOTE: It is often important, if you defer the flush,
+ .. important::
+
+ It is often important, if you defer the flush,
that the actual flush occurs on the same CPU
as did the cpu stores into the page to make it
dirty. Again, see sparc64 for examples of how
to deal with this.
- void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
- unsigned long user_vaddr,
- void *dst, void *src, int len)
- void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
- unsigned long user_vaddr,
- void *dst, void *src, int len)
+ ``void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
+ unsigned long user_vaddr, void *dst, void *src, int len)``
+ ``void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
+ unsigned long user_vaddr, void *dst, void *src, int len)``
+
When the kernel needs to copy arbitrary data in and out
of arbitrary user pages (f.e. for ptrace()) it will use
these two routines.
@@ -344,8 +350,9 @@ maps this page at its virtual address.
likely that you will need to flush the instruction cache
for copy_to_user_page().
- void flush_anon_page(struct vm_area_struct *vma, struct page *page,
- unsigned long vmaddr)
+ ``void flush_anon_page(struct vm_area_struct *vma, struct page *page,
+ unsigned long vmaddr)``
+
When the kernel needs to access the contents of an anonymous
page, it calls this function (currently only
get_user_pages()). Note: flush_dcache_page() deliberately
@@ -354,7 +361,8 @@ maps this page at its virtual address.
architectures). For incoherent architectures, it should flush
the cache of the page at vmaddr.
- void flush_kernel_dcache_page(struct page *page)
+ ``void flush_kernel_dcache_page(struct page *page)``
+
When the kernel needs to modify a user page is has obtained
with kmap, it calls this function after all modifications are
complete (but before kunmapping it) to bring the underlying
@@ -366,14 +374,16 @@ maps this page at its virtual address.
the kernel cache for page (using page_address(page)).
- void flush_icache_range(unsigned long start, unsigned long end)
+ ``void flush_icache_range(unsigned long start, unsigned long end)``
+
When the kernel stores into addresses that it will execute
out of (eg when loading modules), this function is called.
If the icache does not snoop stores then this routine will need
to flush it.
- void flush_icache_page(struct vm_area_struct *vma, struct page *page)
+ ``void flush_icache_page(struct vm_area_struct *vma, struct page *page)``
+
All the functionality of flush_icache_page can be implemented in
flush_dcache_page and update_mmu_cache. In the future, the hope
is to remove this interface completely.
@@ -387,7 +397,8 @@ the kernel trying to do I/O to vmap areas must manually manage
coherency. It must do this by flushing the vmap range before doing
I/O and invalidating it after the I/O returns.
- void flush_kernel_vmap_range(void *vaddr, int size)
+ ``void flush_kernel_vmap_range(void *vaddr, int size)``
+
flushes the kernel cache for a given virtual address range in
the vmap area. This is to make sure that any data the kernel
modified in the vmap range is made visible to the physical
@@ -395,7 +406,8 @@ I/O and invalidating it after the I/O returns.
Note that this API does *not* also flush the offset map alias
of the area.
- void invalidate_kernel_vmap_range(void *vaddr, int size) invalidates
+ ``void invalidate_kernel_vmap_range(void *vaddr, int size) invalidates``
+
the cache for a given virtual address range in the vmap area
which prevents the processor from making the cache stale by
speculatively reading data while the I/O was occurring to the
diff --git a/Documentation/cgroup-v1/memory.txt b/Documentation/cgroup-v1/memory.txt
index 946e69103cdd..cefb63639070 100644
--- a/Documentation/cgroup-v1/memory.txt
+++ b/Documentation/cgroup-v1/memory.txt
@@ -789,23 +789,46 @@ way to trigger. Applications should do whatever they can to help the
system. It might be too late to consult with vmstat or any other
statistics, so it's advisable to take an immediate action.
-The events are propagated upward until the event is handled, i.e. the
-events are not pass-through. Here is what this means: for example you have
-three cgroups: A->B->C. Now you set up an event listener on cgroups A, B
-and C, and suppose group C experiences some pressure. In this situation,
-only group C will receive the notification, i.e. groups A and B will not
-receive it. This is done to avoid excessive "broadcasting" of messages,
-which disturbs the system and which is especially bad if we are low on
-memory or thrashing. So, organize the cgroups wisely, or propagate the
-events manually (or, ask us to implement the pass-through events,
-explaining why would you need them.)
+By default, events are propagated upward until the event is handled, i.e. the
+events are not pass-through. For example, you have three cgroups: A->B->C. Now
+you set up an event listener on cgroups A, B and C, and suppose group C
+experiences some pressure. In this situation, only group C will receive the
+notification, i.e. groups A and B will not receive it. This is done to avoid
+excessive "broadcasting" of messages, which disturbs the system and which is
+especially bad if we are low on memory or thrashing. Group B, will receive
+notification only if there are no event listers for group C.
+
+There are three optional modes that specify different propagation behavior:
+
+ - "default": this is the default behavior specified above. This mode is the
+ same as omitting the optional mode parameter, preserved by backwards
+ compatibility.
+
+ - "hierarchy": events always propagate up to the root, similar to the default
+ behavior, except that propagation continues regardless of whether there are
+ event listeners at each level, with the "hierarchy" mode. In the above
+ example, groups A, B, and C will receive notification of memory pressure.
+
+ - "local": events are pass-through, i.e. they only receive notifications when
+ memory pressure is experienced in the memcg for which the notification is
+ registered. In the above example, group C will receive notification if
+ registered for "local" notification and the group experiences memory
+ pressure. However, group B will never receive notification, regardless if
+ there is an event listener for group C or not, if group B is registered for
+ local notification.
+
+The level and event notification mode ("hierarchy" or "local", if necessary) are
+specified by a comma-delimited string, i.e. "low,hierarchy" specifies
+hierarchical, pass-through, notification for all ancestor memcgs. Notification
+that is the default, non pass-through behavior, does not specify a mode.
+"medium,local" specifies pass-through notification for the medium level.
The file memory.pressure_level is only used to setup an eventfd. To
register a notification, an application must:
- create an eventfd using eventfd(2);
- open memory.pressure_level;
-- write string like "<event_fd> <fd of memory.pressure_level> <level>"
+- write string as "<event_fd> <fd of memory.pressure_level> <level[,mode]>"
to cgroup.event_control.
Application will be notified through eventfd when memory pressure is at
@@ -821,7 +844,7 @@ Test:
# cd /sys/fs/cgroup/memory/
# mkdir foo
# cd foo
- # cgroup_event_listener memory.pressure_level low &
+ # cgroup_event_listener memory.pressure_level low,hierarchy &
# echo 8000000 > memory.limit_in_bytes
# echo 8000000 > memory.memsw.limit_in_bytes
# echo $$ > tasks
diff --git a/Documentation/cgroup-v2.txt b/Documentation/cgroup-v2.txt
index dc5e2dcdbef4..dc44785dc0fa 100644
--- a/Documentation/cgroup-v2.txt
+++ b/Documentation/cgroup-v2.txt
@@ -1,7 +1,9 @@
-
+================
Control Group v2
+================
-October, 2015 Tejun Heo <tj@kernel.org>
+:Date: October, 2015
+:Author: Tejun Heo <tj@kernel.org>
This is the authoritative documentation on the design, interface and
conventions of cgroup v2. It describes all userland-visible aspects
@@ -9,70 +11,74 @@ of cgroup including core and specific controller behaviors. All
future changes must be reflected in this document. Documentation for
v1 is available under Documentation/cgroup-v1/.
-CONTENTS
-
-1. Introduction
- 1-1. Terminology
- 1-2. What is cgroup?
-2. Basic Operations
- 2-1. Mounting
- 2-2. Organizing Processes
- 2-3. [Un]populated Notification
- 2-4. Controlling Controllers
- 2-4-1. Enabling and Disabling
- 2-4-2. Top-down Constraint
- 2-4-3. No Internal Process Constraint
- 2-5. Delegation
- 2-5-1. Model of Delegation
- 2-5-2. Delegation Containment
- 2-6. Guidelines
- 2-6-1. Organize Once and Control
- 2-6-2. Avoid Name Collisions
-3. Resource Distribution Models
- 3-1. Weights
- 3-2. Limits
- 3-3. Protections
- 3-4. Allocations
-4. Interface Files
- 4-1. Format
- 4-2. Conventions
- 4-3. Core Interface Files
-5. Controllers
- 5-1. CPU
- 5-1-1. CPU Interface Files
- 5-2. Memory
- 5-2-1. Memory Interface Files
- 5-2-2. Usage Guidelines
- 5-2-3. Memory Ownership
- 5-3. IO
- 5-3-1. IO Interface Files
- 5-3-2. Writeback
- 5-4. PID
- 5-4-1. PID Interface Files
- 5-5. RDMA
- 5-5-1. RDMA Interface Files
- 5-6. Misc
- 5-6-1. perf_event
-6. Namespace
- 6-1. Basics
- 6-2. The Root and Views
- 6-3. Migration and setns(2)
- 6-4. Interaction with Other Namespaces
-P. Information on Kernel Programming
- P-1. Filesystem Support for Writeback
-D. Deprecated v1 Core Features
-R. Issues with v1 and Rationales for v2
- R-1. Multiple Hierarchies
- R-2. Thread Granularity
- R-3. Competition Between Inner Nodes and Threads
- R-4. Other Interface Issues
- R-5. Controller Issues and Remedies
- R-5-1. Memory
-
-
-1. Introduction
-
-1-1. Terminology
+.. CONTENTS
+
+ 1. Introduction
+ 1-1. Terminology
+ 1-2. What is cgroup?
+ 2. Basic Operations
+ 2-1. Mounting
+ 2-2. Organizing Processes and Threads
+ 2-2-1. Processes
+ 2-2-2. Threads
+ 2-3. [Un]populated Notification
+ 2-4. Controlling Controllers
+ 2-4-1. Enabling and Disabling
+ 2-4-2. Top-down Constraint
+ 2-4-3. No Internal Process Constraint
+ 2-5. Delegation
+ 2-5-1. Model of Delegation
+ 2-5-2. Delegation Containment
+ 2-6. Guidelines
+ 2-6-1. Organize Once and Control
+ 2-6-2. Avoid Name Collisions
+ 3. Resource Distribution Models
+ 3-1. Weights
+ 3-2. Limits
+ 3-3. Protections
+ 3-4. Allocations
+ 4. Interface Files
+ 4-1. Format
+ 4-2. Conventions
+ 4-3. Core Interface Files
+ 5. Controllers
+ 5-1. CPU
+ 5-1-1. CPU Interface Files
+ 5-2. Memory
+ 5-2-1. Memory Interface Files
+ 5-2-2. Usage Guidelines
+ 5-2-3. Memory Ownership
+ 5-3. IO
+ 5-3-1. IO Interface Files
+ 5-3-2. Writeback
+ 5-4. PID
+ 5-4-1. PID Interface Files
+ 5-5. RDMA
+ 5-5-1. RDMA Interface Files
+ 5-6. Misc
+ 5-6-1. perf_event
+ 6. Namespace
+ 6-1. Basics
+ 6-2. The Root and Views
+ 6-3. Migration and setns(2)
+ 6-4. Interaction with Other Namespaces
+ P. Information on Kernel Programming
+ P-1. Filesystem Support for Writeback
+ D. Deprecated v1 Core Features
+ R. Issues with v1 and Rationales for v2
+ R-1. Multiple Hierarchies
+ R-2. Thread Granularity
+ R-3. Competition Between Inner Nodes and Threads
+ R-4. Other Interface Issues
+ R-5. Controller Issues and Remedies
+ R-5-1. Memory
+
+
+Introduction
+============
+
+Terminology
+-----------
"cgroup" stands for "control group" and is never capitalized. The
singular form is used to designate the whole feature and also as a
@@ -80,7 +86,8 @@ qualifier as in "cgroup controllers". When explicitly referring to
multiple individual control groups, the plural form "cgroups" is used.
-1-2. What is cgroup?
+What is cgroup?
+---------------
cgroup is a mechanism to organize processes hierarchically and
distribute system resources along the hierarchy in a controlled and
@@ -110,12 +117,14 @@ restrictions set closer to the root in the hierarchy can not be
overridden from further away.
-2. Basic Operations
+Basic Operations
+================
-2-1. Mounting
+Mounting
+--------
Unlike v1, cgroup v2 has only single hierarchy. The cgroup v2
-hierarchy can be mounted with the following mount command.
+hierarchy can be mounted with the following mount command::
# mount -t cgroup2 none $MOUNT_POINT
@@ -149,11 +158,25 @@ during boot, before manual intervention is possible. To make testing
and experimenting easier, the kernel parameter cgroup_no_v1= allows
disabling controllers in v1 and make them always available in v2.
+cgroup v2 currently supports the following mount options.
+
+ nsdelegate
+
+ Consider cgroup namespaces as delegation boundaries. This
+ option is system wide and can only be set on mount or modified
+ through remount from the init namespace. The mount option is
+ ignored on non-init namespace mounts. Please refer to the
+ Delegation section for details.
+
-2-2. Organizing Processes
+Organizing Processes and Threads
+--------------------------------
+
+Processes
+~~~~~~~~~
Initially, only the root cgroup exists to which all processes belong.
-A child cgroup can be created by creating a sub-directory.
+A child cgroup can be created by creating a sub-directory::
# mkdir $CGROUP_NAME
@@ -180,28 +203,128 @@ moved to another cgroup.
A cgroup which doesn't have any children or live processes can be
destroyed by removing the directory. Note that a cgroup which doesn't
have any children and is associated only with zombie processes is
-considered empty and can be removed.
+considered empty and can be removed::
# rmdir $CGROUP_NAME
"/proc/$PID/cgroup" lists a process's cgroup membership. If legacy
cgroup is in use in the system, this file may contain multiple lines,
one for each hierarchy. The entry for cgroup v2 is always in the
-format "0::$PATH".
+format "0::$PATH"::
# cat /proc/842/cgroup
...
0::/test-cgroup/test-cgroup-nested
If the process becomes a zombie and the cgroup it was associated with
-is removed subsequently, " (deleted)" is appended to the path.
+is removed subsequently, " (deleted)" is appended to the path::
# cat /proc/842/cgroup
...
0::/test-cgroup/test-cgroup-nested (deleted)
-2-3. [Un]populated Notification
+Threads
+~~~~~~~
+
+cgroup v2 supports thread granularity for a subset of controllers to
+support use cases requiring hierarchical resource distribution across
+the threads of a group of processes. By default, all threads of a
+process belong to the same cgroup, which also serves as the resource
+domain to host resource consumptions which are not specific to a
+process or thread. The thread mode allows threads to be spread across
+a subtree while still maintaining the common resource domain for them.
+
+Controllers which support thread mode are called threaded controllers.
+The ones which don't are called domain controllers.
+
+Marking a cgroup threaded makes it join the resource domain of its
+parent as a threaded cgroup. The parent may be another threaded
+cgroup whose resource domain is further up in the hierarchy. The root
+of a threaded subtree, that is, the nearest ancestor which is not
+threaded, is called threaded domain or thread root interchangeably and
+serves as the resource domain for the entire subtree.
+
+Inside a threaded subtree, threads of a process can be put in
+different cgroups and are not subject to the no internal process
+constraint - threaded controllers can be enabled on non-leaf cgroups
+whether they have threads in them or not.
+
+As the threaded domain cgroup hosts all the domain resource
+consumptions of the subtree, it is considered to have internal
+resource consumptions whether there are processes in it or not and
+can't have populated child cgroups which aren't threaded. Because the
+root cgroup is not subject to no internal process constraint, it can
+serve both as a threaded domain and a parent to domain cgroups.
+
+The current operation mode or type of the cgroup is shown in the
+"cgroup.type" file which indicates whether the cgroup is a normal
+domain, a domain which is serving as the domain of a threaded subtree,
+or a threaded cgroup.
+
+On creation, a cgroup is always a domain cgroup and can be made
+threaded by writing "threaded" to the "cgroup.type" file. The
+operation is single direction::
+
+ # echo threaded > cgroup.type
+
+Once threaded, the cgroup can't be made a domain again. To enable the
+thread mode, the following conditions must be met.
+
+- As the cgroup will join the parent's resource domain. The parent
+ must either be a valid (threaded) domain or a threaded cgroup.
+
+- When the parent is an unthreaded domain, it must not have any domain
+ controllers enabled or populated domain children. The root is
+ exempt from this requirement.
+
+Topology-wise, a cgroup can be in an invalid state. Please consider
+the following toplogy::
+
+ A (threaded domain) - B (threaded) - C (domain, just created)
+
+C is created as a domain but isn't connected to a parent which can
+host child domains. C can't be used until it is turned into a
+threaded cgroup. "cgroup.type" file will report "domain (invalid)" in
+these cases. Operations which fail due to invalid topology use
+EOPNOTSUPP as the errno.
+
+A domain cgroup is turned into a threaded domain when one of its child
+cgroup becomes threaded or threaded controllers are enabled in the
+"cgroup.subtree_control" file while there are processes in the cgroup.
+A threaded domain reverts to a normal domain when the conditions
+clear.
+
+When read, "cgroup.threads" contains the list of the thread IDs of all
+threads in the cgroup. Except that the operations are per-thread
+instead of per-process, "cgroup.threads" has the same format and
+behaves the same way as "cgroup.procs". While "cgroup.threads" can be
+written to in any cgroup, as it can only move threads inside the same
+threaded domain, its operations are confined inside each threaded
+subtree.
+
+The threaded domain cgroup serves as the resource domain for the whole
+subtree, and, while the threads can be scattered across the subtree,
+all the processes are considered to be in the threaded domain cgroup.
+"cgroup.procs" in a threaded domain cgroup contains the PIDs of all
+processes in the subtree and is not readable in the subtree proper.
+However, "cgroup.procs" can be written to from anywhere in the subtree
+to migrate all threads of the matching process to the cgroup.
+
+Only threaded controllers can be enabled in a threaded subtree. When
+a threaded controller is enabled inside a threaded subtree, it only
+accounts for and controls resource consumptions associated with the
+threads in the cgroup and its descendants. All consumptions which
+aren't tied to a specific thread belong to the threaded domain cgroup.
+
+Because a threaded subtree is exempt from no internal process
+constraint, a threaded controller must be able to handle competition
+between threads in a non-leaf cgroup and its child cgroups. Each
+threaded controller defines how such competitions are handled.
+
+
+[Un]populated Notification
+--------------------------
Each non-root cgroup has a "cgroup.events" file which contains
"populated" field indicating whether the cgroup's sub-hierarchy has
@@ -212,7 +335,7 @@ example, to start a clean-up operation after all processes of a given
sub-hierarchy have exited. The populated state updates and
notifications are recursive. Consider the following sub-hierarchy
where the numbers in the parentheses represent the numbers of processes
-in each cgroup.
+in each cgroup::
A(4) - B(0) - C(1)
\ D(0)
@@ -223,18 +346,20 @@ file modified events will be generated on the "cgroup.events" files of
both cgroups.
-2-4. Controlling Controllers
+Controlling Controllers
+-----------------------
-2-4-1. Enabling and Disabling
+Enabling and Disabling
+~~~~~~~~~~~~~~~~~~~~~~
Each cgroup has a "cgroup.controllers" file which lists all
-controllers available for the cgroup to enable.
+controllers available for the cgroup to enable::
# cat cgroup.controllers
cpu io memory
No controller is enabled by default. Controllers can be enabled and
-disabled by writing to the "cgroup.subtree_control" file.
+disabled by writing to the "cgroup.subtree_control" file::
# echo "+cpu +memory -io" > cgroup.subtree_control
@@ -246,7 +371,7 @@ are specified, the last one is effective.
Enabling a controller in a cgroup indicates that the distribution of
the target resource across its immediate children will be controlled.
Consider the following sub-hierarchy. The enabled controllers are
-listed in parentheses.
+listed in parentheses::
A(cpu,memory) - B(memory) - C()
\ D()
@@ -266,7 +391,8 @@ controller interface files - anything which doesn't start with
"cgroup." are owned by the parent rather than the cgroup itself.
-2-4-2. Top-down Constraint
+Top-down Constraint
+~~~~~~~~~~~~~~~~~~~
Resources are distributed top-down and a cgroup can further distribute
a resource only if the resource has been distributed to it from the
@@ -277,17 +403,18 @@ the parent has the controller enabled and a controller can't be
disabled if one or more children have it enabled.
-2-4-3. No Internal Process Constraint
+No Internal Process Constraint
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Non-root cgroups can only distribute resources to their children when
-they don't have any processes of their own. In other words, only
-cgroups which don't contain any processes can have controllers enabled
-in their "cgroup.subtree_control" files.
+Non-root cgroups can distribute domain resources to their children
+only when they don't have any processes of their own. In other words,
+only domain cgroups which don't contain any processes can have domain
+controllers enabled in their "cgroup.subtree_control" files.
-This guarantees that, when a controller is looking at the part of the
-hierarchy which has it enabled, processes are always only on the
-leaves. This rules out situations where child cgroups compete against
-internal processes of the parent.
+This guarantees that, when a domain controller is looking at the part
+of the hierarchy which has it enabled, processes are always only on
+the leaves. This rules out situations where child cgroups compete
+against internal processes of the parent.
The root cgroup is exempt from this restriction. Root contains
processes and anonymous resource consumption which can't be associated
@@ -304,35 +431,49 @@ children before enabling controllers in its "cgroup.subtree_control"
file.
-2-5. Delegation
+Delegation
+----------
+
+Model of Delegation
+~~~~~~~~~~~~~~~~~~~
-2-5-1. Model of Delegation
+A cgroup can be delegated in two ways. First, to a less privileged
+user by granting write access of the directory and its "cgroup.procs",
+"cgroup.threads" and "cgroup.subtree_control" files to the user.
+Second, if the "nsdelegate" mount option is set, automatically to a
+cgroup namespace on namespace creation.
-A cgroup can be delegated to a less privileged user by granting write
-access of the directory and its "cgroup.procs" file to the user. Note
-that resource control interface files in a given directory control the
-distribution of the parent's resources and thus must not be delegated
-along with the directory.
+Because the resource control interface files in a given directory
+control the distribution of the parent's resources, the delegatee
+shouldn't be allowed to write to them. For the first method, this is
+achieved by not granting access to these files. For the second, the
+kernel rejects writes to all files other than "cgroup.procs" and
+"cgroup.subtree_control" on a namespace root from inside the
+namespace.
-Once delegated, the user can build sub-hierarchy under the directory,
-organize processes as it sees fit and further distribute the resources
-it received from the parent. The limits and other settings of all
-resource controllers are hierarchical and regardless of what happens
-in the delegated sub-hierarchy, nothing can escape the resource
-restrictions imposed by the parent.
+The end results are equivalent for both delegation types. Once
+delegated, the user can build sub-hierarchy under the directory,
+organize processes inside it as it sees fit and further distribute the
+resources it received from the parent. The limits and other settings
+of all resource controllers are hierarchical and regardless of what
+happens in the delegated sub-hierarchy, nothing can escape the
+resource restrictions imposed by the parent.
Currently, cgroup doesn't impose any restrictions on the number of
cgroups in or nesting depth of a delegated sub-hierarchy; however,
this may be limited explicitly in the future.
-2-5-2. Delegation Containment
+Delegation Containment
+~~~~~~~~~~~~~~~~~~~~~~
A delegated sub-hierarchy is contained in the sense that processes
-can't be moved into or out of the sub-hierarchy by the delegatee. For
-a process with a non-root euid to migrate a target process into a
-cgroup by writing its PID to the "cgroup.procs" file, the following
-conditions must be met.
+can't be moved into or out of the sub-hierarchy by the delegatee.
+
+For delegations to a less privileged user, this is achieved by
+requiring the following conditions for a process with a non-root euid
+to migrate a target process into a cgroup by writing its PID to the
+"cgroup.procs" file.
- The writer must have write access to the "cgroup.procs" file.
@@ -345,7 +486,7 @@ in from or push out to outside the sub-hierarchy.
For an example, let's assume cgroups C0 and C1 have been delegated to
user U0 who created C00, C01 under C0 and C10 under C1 as follows and
-all processes under C0 and C1 belong to U0.
+all processes under C0 and C1 belong to U0::
~~~~~~~~~~~~~ - C0 - C00
~ cgroup ~ \ C01
@@ -359,10 +500,17 @@ destination cgroup C00 is above the points of delegation and U0 would
not have write access to its "cgroup.procs" files and thus the write
will be denied with -EACCES.
+For delegations to namespaces, containment is achieved by requiring
+that both the source and destination cgroups are reachable from the
+namespace of the process which is attempting the migration. If either
+is not reachable, the migration is rejected with -ENOENT.
-2-6. Guidelines
-2-6-1. Organize Once and Control
+Guidelines
+----------
+
+Organize Once and Control
+~~~~~~~~~~~~~~~~~~~~~~~~~
Migrating a process across cgroups is a relatively expensive operation
and stateful resources such as memory are not moved together with the
@@ -378,7 +526,8 @@ distribution can be made by changing controller configuration through
the interface files.
-2-6-2. Avoid Name Collisions
+Avoid Name Collisions
+~~~~~~~~~~~~~~~~~~~~~
Interface files for a cgroup and its children cgroups occupy the same
directory and it is possible to create children cgroups which collide
@@ -396,14 +545,16 @@ cgroup doesn't do anything to prevent name collisions and it's the
user's responsibility to avoid them.
-3. Resource Distribution Models
+Resource Distribution Models
+============================
cgroup controllers implement several resource distribution schemes
depending on the resource type and expected use cases. This section
describes major schemes in use along with their expected behaviors.
-3-1. Weights
+Weights
+-------
A parent's resource is distributed by adding up the weights of all
active children and giving each the fraction matching the ratio of its
@@ -424,7 +575,8 @@ process migrations.
and is an example of this type.
-3-2. Limits
+Limits
+------
A child can only consume upto the configured amount of the resource.
Limits can be over-committed - the sum of the limits of children can
@@ -440,7 +592,8 @@ process migrations.
on an IO device and is an example of this type.
-3-3. Protections
+Protections
+-----------
A cgroup is protected to be allocated upto the configured amount of
the resource if the usages of all its ancestors are under their
@@ -460,7 +613,8 @@ process migrations.
example of this type.
-3-4. Allocations
+Allocations
+-----------
A cgroup is exclusively allocated a certain amount of a finite
resource. Allocations can't be over-committed - the sum of the
@@ -479,12 +633,14 @@ may be rejected.
type.
-4. Interface Files
+Interface Files
+===============
-4-1. Format
+Format
+------
All interface files should be in one of the following formats whenever
-possible.
+possible::
New-line separated values
(when only one value can be written at once)
@@ -519,7 +675,8 @@ can be written at a time. For nested keyed files, the sub key pairs
may be specified in any order and not all pairs have to be specified.
-4-2. Conventions
+Conventions
+-----------
- Settings for a single feature should be contained in a single file.
@@ -555,25 +712,25 @@ may be specified in any order and not all pairs have to be specified.
with "default" as the value must not appear when read.
For example, a setting which is keyed by major:minor device numbers
- with integer values may look like the following.
+ with integer values may look like the following::
# cat cgroup-example-interface-file
default 150
8:0 300
- The default value can be updated by
+ The default value can be updated by::
# echo 125 > cgroup-example-interface-file
- or
+ or::
# echo "default 125" > cgroup-example-interface-file
- An override can be set by
+ An override can be set by::
# echo "8:16 170" > cgroup-example-interface-file
- and cleared by
+ and cleared by::
# echo "8:0 default" > cgroup-example-interface-file
# cat cgroup-example-interface-file
@@ -586,12 +743,35 @@ may be specified in any order and not all pairs have to be specified.
generated on the file.
-4-3. Core Interface Files
+Core Interface Files
+--------------------
All cgroup core files are prefixed with "cgroup."
- cgroup.procs
+ cgroup.type
+
+ A read-write single value file which exists on non-root
+ cgroups.
+
+ When read, it indicates the current type of the cgroup, which
+ can be one of the following values.
+ - "domain" : A normal valid domain cgroup.
+
+ - "domain threaded" : A threaded domain cgroup which is
+ serving as the root of a threaded subtree.
+
+ - "domain invalid" : A cgroup which is in an invalid state.
+ It can't be populated or have controllers enabled. It may
+ be allowed to become a threaded cgroup.
+
+ - "threaded" : A threaded cgroup which is a member of a
+ threaded subtree.
+
+ A cgroup can be turned into a threaded cgroup by writing
+ "threaded" to this file.
+
+ cgroup.procs
A read-write new-line separated values file which exists on
all cgroups.
@@ -605,9 +785,6 @@ All cgroup core files are prefixed with "cgroup."
the PID to the cgroup. The writer should match all of the
following conditions.
- - Its euid is either root or must match either uid or suid of
- the target process.
-
- It must have write access to the "cgroup.procs" file.
- It must have write access to the "cgroup.procs" file of the
@@ -616,8 +793,36 @@ All cgroup core files are prefixed with "cgroup."
When delegating a sub-hierarchy, write access to this file
should be granted along with the containing directory.
- cgroup.controllers
+ In a threaded cgroup, reading this file fails with EOPNOTSUPP
+ as all the processes belong to the thread root. Writing is
+ supported and moves every thread of the process to the cgroup.
+
+ cgroup.threads
+ A read-write new-line separated values file which exists on
+ all cgroups.
+
+ When read, it lists the TIDs of all threads which belong to
+ the cgroup one-per-line. The TIDs are not ordered and the
+ same TID may show up more than once if the thread got moved to
+ another cgroup and then back or the TID got recycled while
+ reading.
+ A TID can be written to migrate the thread associated with the
+ TID to the cgroup. The writer should match all of the
+ following conditions.
+
+ - It must have write access to the "cgroup.threads" file.
+
+ - The cgroup that the thread is currently in must be in the
+ same resource domain as the destination cgroup.
+
+ - It must have write access to the "cgroup.procs" file of the
+ common ancestor of the source and destination cgroups.
+
+ When delegating a sub-hierarchy, write access to this file
+ should be granted along with the containing directory.
+
+ cgroup.controllers
A read-only space separated values file which exists on all
cgroups.
@@ -625,7 +830,6 @@ All cgroup core files are prefixed with "cgroup."
the cgroup. The controllers are not ordered.
cgroup.subtree_control
-
A read-write space separated values file which exists on all
cgroups. Starts out empty.
@@ -641,23 +845,57 @@ All cgroup core files are prefixed with "cgroup."
operations are specified, either all succeed or all fail.
cgroup.events
-
A read-only flat-keyed file which exists on non-root cgroups.
The following entries are defined. Unless specified
otherwise, a value change in this file generates a file
modified event.
populated
-
1 if the cgroup or its descendants contains any live
processes; otherwise, 0.
+ cgroup.max.descendants
+ A read-write single value files. The default is "max".
+
+ Maximum allowed number of descent cgroups.
+ If the actual number of descendants is equal or larger,
+ an attempt to create a new cgroup in the hierarchy will fail.
+
+ cgroup.max.depth
+ A read-write single value files. The default is "max".
+
+ Maximum allowed descent depth below the current cgroup.
+ If the actual descent depth is equal or larger,
+ an attempt to create a new child cgroup will fail.
+
+ cgroup.stat
+ A read-only flat-keyed file with the following entries:
+
+ nr_descendants
+ Total number of visible descendant cgroups.
+
+ nr_dying_descendants
+ Total number of dying descendant cgroups. A cgroup becomes
+ dying after being deleted by a user. The cgroup will remain
+ in dying state for some time undefined time (which can depend
+ on system load) before being completely destroyed.
-5. Controllers
+ A process can't enter a dying cgroup under any circumstances,
+ a dying cgroup can't revive.
-5-1. CPU
+ A dying cgroup can consume system resources not exceeding
+ limits, which were active at the moment of cgroup deletion.
-[NOTE: The interface for the cpu controller hasn't been merged yet]
+
+Controllers
+===========
+
+CPU
+---
+
+.. note::
+
+ The interface for the cpu controller hasn't been merged yet
The "cpu" controllers regulates distribution of CPU cycles. This
controller implements weight and absolute bandwidth limit models for
@@ -665,36 +903,34 @@ normal scheduling policy and absolute bandwidth allocation model for
realtime scheduling policy.
-5-1-1. CPU Interface Files
+CPU Interface Files
+~~~~~~~~~~~~~~~~~~~
All time durations are in microseconds.
cpu.stat
-
A read-only flat-keyed file which exists on non-root cgroups.
- It reports the following six stats.
+ It reports the following six stats:
- usage_usec
- user_usec
- system_usec
- nr_periods
- nr_throttled
- throttled_usec
+ - usage_usec
+ - user_usec
+ - system_usec
+ - nr_periods
+ - nr_throttled
+ - throttled_usec
cpu.weight
-
A read-write single value file which exists on non-root
cgroups. The default is "100".
The weight in the range [1, 10000].
cpu.max
-
A read-write two value file which exists on non-root cgroups.
The default is "max 100000".
- The maximum bandwidth limit. It's in the following format.
+ The maximum bandwidth limit. It's in the following format::
$MAX $PERIOD
@@ -703,9 +939,10 @@ All time durations are in microseconds.
one number is written, $MAX is updated.
cpu.rt.max
+ .. note::
- [NOTE: The semantics of this file is still under discussion and the
- interface hasn't been merged yet]
+ The semantics of this file is still under discussion and the
+ interface hasn't been merged yet
A read-write two value file which exists on all cgroups.
The default is "0 100000".
@@ -713,7 +950,7 @@ All time durations are in microseconds.
The maximum realtime runtime allocation. Over-committing
configurations are disallowed and process migrations are
rejected if not enough bandwidth is available. It's in the
- following format.
+ following format::
$MAX $PERIOD
@@ -722,7 +959,8 @@ All time durations are in microseconds.
updated.
-5-2. Memory
+Memory
+------
The "memory" controller regulates distribution of memory. Memory is
stateful and implements both limit and protection models. Due to the
@@ -744,14 +982,14 @@ following types of memory usages are tracked.
The above list may expand in the future for better coverage.
-5-2-1. Memory Interface Files
+Memory Interface Files
+~~~~~~~~~~~~~~~~~~~~~~
All memory amounts are in bytes. If a value which is not aligned to
PAGE_SIZE is written, the value may be rounded up to the closest
PAGE_SIZE multiple when read back.
memory.current
-
A read-only single value file which exists on non-root
cgroups.
@@ -759,7 +997,6 @@ PAGE_SIZE multiple when read back.
and its descendants.
memory.low
-
A read-write single value file which exists on non-root
cgroups. The default is "0".
@@ -772,7 +1009,6 @@ PAGE_SIZE multiple when read back.
protection is discouraged.
memory.high
-
A read-write single value file which exists on non-root
cgroups. The default is "max".
@@ -785,7 +1021,6 @@ PAGE_SIZE multiple when read back.
under extreme conditions the limit may be breached.
memory.max
-
A read-write single value file which exists on non-root
cgroups. The default is "max".
@@ -800,21 +1035,18 @@ PAGE_SIZE multiple when read back.
utility is limited to providing the final safety net.
memory.events
-
A read-only flat-keyed file which exists on non-root cgroups.
The following entries are defined. Unless specified
otherwise, a value change in this file generates a file
modified event.
low
-
The number of times the cgroup is reclaimed due to
high memory pressure even though its usage is under
the low boundary. This usually indicates that the low
boundary is over-committed.
high
-
The number of times processes of the cgroup are
throttled and routed to perform direct memory reclaim
because the high memory boundary was exceeded. For a
@@ -823,19 +1055,27 @@ PAGE_SIZE multiple when read back.
occurrences are expected.
max
-
The number of times the cgroup's memory usage was
about to go over the max boundary. If direct reclaim
- fails to bring it down, the OOM killer is invoked.
+ fails to bring it down, the cgroup goes to OOM state.
oom
+ The number of time the cgroup's memory usage was
+ reached the limit and allocation was about to fail.
- The number of times the OOM killer has been invoked in
- the cgroup. This may not exactly match the number of
- processes killed but should generally be close.
+ Depending on context result could be invocation of OOM
+ killer and retrying allocation or failing alloction.
- memory.stat
+ Failed allocation in its turn could be returned into
+ userspace as -ENOMEM or siletly ignored in cases like
+ disk readahead. For now OOM in memory cgroup kills
+ tasks iff shortage has happened inside page fault.
+ oom_kill
+ The number of processes belonging to this cgroup
+ killed by any kind of OOM killer.
+
+ memory.stat
A read-only flat-keyed file which exists on non-root cgroups.
This breaks down the cgroup's memory footprint into different
@@ -849,73 +1089,55 @@ PAGE_SIZE multiple when read back.
fixed position; use the keys to look up specific values!
anon
-
Amount of memory used in anonymous mappings such as
brk(), sbrk(), and mmap(MAP_ANONYMOUS)
file
-
Amount of memory used to cache filesystem data,
including tmpfs and shared memory.
kernel_stack
-
Amount of memory allocated to kernel stacks.
slab
-
Amount of memory used for storing in-kernel data
structures.
sock
-
Amount of memory used in network transmission buffers
shmem
-
Amount of cached filesystem data that is swap-backed,
such as tmpfs, shm segments, shared anonymous mmap()s
file_mapped
-
Amount of cached filesystem data mapped with mmap()
file_dirty
-
Amount of cached filesystem data that was modified but
not yet written back to disk
file_writeback
-
Amount of cached filesystem data that was modified and
is currently being written back to disk
- inactive_anon
- active_anon
- inactive_file
- active_file
- unevictable
-
+ inactive_anon, active_anon, inactive_file, active_file, unevictable
Amount of memory, swap-backed and filesystem-backed,
on the internal memory management lists used by the
page reclaim algorithm
slab_reclaimable
-
Part of "slab" that might be reclaimed, such as
dentries and inodes.
slab_unreclaimable
-
Part of "slab" that cannot be reclaimed on memory
pressure.
pgfault
-
Total number of page faults incurred
pgmajfault
-
Number of major page faults incurred
workingset_refault
@@ -930,8 +1152,35 @@ PAGE_SIZE multiple when read back.
Number of times a shadow node has been reclaimed
- memory.swap.current
+ pgrefill
+
+ Amount of scanned pages (in an active LRU list)
+
+ pgscan
+
+ Amount of scanned pages (in an inactive LRU list)
+
+ pgsteal
+
+ Amount of reclaimed pages
+
+ pgactivate
+
+ Amount of pages moved to the active LRU list
+
+ pgdeactivate
+
+ Amount of pages moved to the inactive LRU lis
+
+ pglazyfree
+
+ Amount of pages postponed to be freed under memory pressure
+
+ pglazyfreed
+ Amount of reclaimed lazyfree pages
+
+ memory.swap.current
A read-only single value file which exists on non-root
cgroups.
@@ -939,7 +1188,6 @@ PAGE_SIZE multiple when read back.
and its descendants.
memory.swap.max
-
A read-write single value file which exists on non-root
cgroups. The default is "max".
@@ -947,7 +1195,8 @@ PAGE_SIZE multiple when read back.
limit, anonymous meomry of the cgroup will not be swapped out.
-5-2-2. Usage Guidelines
+Usage Guidelines
+~~~~~~~~~~~~~~~~
"memory.high" is the main mechanism to control memory usage.
Over-committing on high limit (sum of high limits > available memory)
@@ -970,7 +1219,8 @@ memory; unfortunately, memory pressure monitoring mechanism isn't
implemented yet.
-5-2-3. Memory Ownership
+Memory Ownership
+~~~~~~~~~~~~~~~~
A memory area is charged to the cgroup which instantiated it and stays
charged to the cgroup until the area is released. Migrating a process
@@ -988,7 +1238,8 @@ POSIX_FADV_DONTNEED to relinquish the ownership of memory areas
belonging to the affected files to ensure correct memory ownership.
-5-3. IO
+IO
+--
The "io" controller regulates the distribution of IO resources. This
controller implements both weight based and absolute bandwidth or IOPS
@@ -997,28 +1248,29 @@ only if cfq-iosched is in use and neither scheme is available for
blk-mq devices.
-5-3-1. IO Interface Files
+IO Interface Files
+~~~~~~~~~~~~~~~~~~
io.stat
-
A read-only nested-keyed file which exists on non-root
cgroups.
Lines are keyed by $MAJ:$MIN device numbers and not ordered.
The following nested keys are defined.
+ ====== ===================
rbytes Bytes read
wbytes Bytes written
rios Number of read IOs
wios Number of write IOs
+ ====== ===================
- An example read output follows.
+ An example read output follows:
8:16 rbytes=1459200 wbytes=314773504 rios=192 wios=353
8:0 rbytes=90430464 wbytes=299008000 rios=8950 wios=1252
io.weight
-
A read-write flat-keyed file which exists on non-root cgroups.
The default is "default 100".
@@ -1032,14 +1284,13 @@ blk-mq devices.
$WEIGHT" or simply "$WEIGHT". Overrides can be set by writing
"$MAJ:$MIN $WEIGHT" and unset by writing "$MAJ:$MIN default".
- An example read output follows.
+ An example read output follows::
default 100
8:16 200
8:0 50
io.max
-
A read-write nested-keyed file which exists on non-root
cgroups.
@@ -1047,10 +1298,12 @@ blk-mq devices.
device numbers and not ordered. The following nested keys are
defined.
+ ===== ==================================
rbps Max read bytes per second
wbps Max write bytes per second
riops Max read IO operations per second
wiops Max write IO operations per second
+ ===== ==================================
When writing, any number of nested key-value pairs can be
specified in any order. "max" can be specified as the value
@@ -1060,24 +1313,25 @@ blk-mq devices.
BPS and IOPS are measured in each IO direction and IOs are
delayed if limit is reached. Temporary bursts are allowed.
- Setting read limit at 2M BPS and write at 120 IOPS for 8:16.
+ Setting read limit at 2M BPS and write at 120 IOPS for 8:16::
echo "8:16 rbps=2097152 wiops=120" > io.max
- Reading returns the following.
+ Reading returns the following::
8:16 rbps=2097152 wbps=max riops=max wiops=120
- Write IOPS limit can be removed by writing the following.
+ Write IOPS limit can be removed by writing the following::
echo "8:16 wiops=max" > io.max
- Reading now returns the following.
+ Reading now returns the following::
8:16 rbps=2097152 wbps=max riops=max wiops=max
-5-3-2. Writeback
+Writeback
+~~~~~~~~~
Page cache is dirtied through buffered writes and shared mmaps and
written asynchronously to the backing filesystem by the writeback
@@ -1125,22 +1379,19 @@ patterns.
The sysctl knobs which affect writeback behavior are applied to cgroup
writeback as follows.
- vm.dirty_background_ratio
- vm.dirty_ratio
-
+ vm.dirty_background_ratio, vm.dirty_ratio
These ratios apply the same to cgroup writeback with the
amount of available memory capped by limits imposed by the
memory controller and system-wide clean memory.
- vm.dirty_background_bytes
- vm.dirty_bytes
-
+ vm.dirty_background_bytes, vm.dirty_bytes
For cgroup writeback, this is calculated into ratio against
total available memory and applied the same way as
vm.dirty[_background]_ratio.
-5-4. PID
+PID
+---
The process number controller is used to allow a cgroup to stop any
new tasks from being fork()'d or clone()'d after a specified limit is
@@ -1155,17 +1406,16 @@ Note that PIDs used in this controller refer to TIDs, process IDs as
used by the kernel.
-5-4-1. PID Interface Files
+PID Interface Files
+~~~~~~~~~~~~~~~~~~~
pids.max
-
A read-write single value file which exists on non-root
cgroups. The default is "max".
Hard limit of number of processes.
pids.current
-
A read-only single value file which exists on all cgroups.
The number of processes currently in the cgroup and its
@@ -1180,12 +1430,14 @@ through fork() or clone(). These will return -EAGAIN if the creation
of a new process would cause a cgroup policy to be violated.
-5-5. RDMA
+RDMA
+----
The "rdma" controller regulates the distribution and accounting of
of RDMA resources.
-5-5-1. RDMA Interface Files
+RDMA Interface Files
+~~~~~~~~~~~~~~~~~~~~
rdma.max
A readwrite nested-keyed file that exists for all the cgroups
@@ -1198,10 +1450,12 @@ of RDMA resources.
The following nested keys are defined.
+ ========== =============================
hca_handle Maximum number of HCA Handles
hca_object Maximum number of HCA Objects
+ ========== =============================
- An example for mlx4 and ocrdma device follows.
+ An example for mlx4 and ocrdma device follows::
mlx4_0 hca_handle=2 hca_object=2000
ocrdma1 hca_handle=3 hca_object=max
@@ -1210,15 +1464,17 @@ of RDMA resources.
A read-only file that describes current resource usage.
It exists for all the cgroup except root.
- An example for mlx4 and ocrdma device follows.
+ An example for mlx4 and ocrdma device follows::
mlx4_0 hca_handle=1 hca_object=20
ocrdma1 hca_handle=1 hca_object=23
-5-6. Misc
+Misc
+----
-5-6-1. perf_event
+perf_event
+~~~~~~~~~~
perf_event controller, if not mounted on a legacy hierarchy, is
automatically enabled on the v2 hierarchy so that perf events can
@@ -1226,9 +1482,11 @@ always be filtered by cgroup v2 path. The controller can still be
moved to a legacy hierarchy after v2 hierarchy is populated.
-6. Namespace
+Namespace
+=========
-6-1. Basics
+Basics
+------
cgroup namespace provides a mechanism to virtualize the view of the
"/proc/$PID/cgroup" file and cgroup mounts. The CLONE_NEWCGROUP clone
@@ -1242,7 +1500,7 @@ Without cgroup namespace, the "/proc/$PID/cgroup" file shows the
complete path of the cgroup of a process. In a container setup where
a set of cgroups and namespaces are intended to isolate processes the
"/proc/$PID/cgroup" file may leak potential system level information
-to the isolated processes. For Example:
+to the isolated processes. For Example::
# cat /proc/self/cgroup
0::/batchjobs/container_id1
@@ -1250,14 +1508,14 @@ to the isolated processes. For Example:
The path '/batchjobs/container_id1' can be considered as system-data
and undesirable to expose to the isolated processes. cgroup namespace
can be used to restrict visibility of this path. For example, before
-creating a cgroup namespace, one would see:
+creating a cgroup namespace, one would see::
# ls -l /proc/self/ns/cgroup
lrwxrwxrwx 1 root root 0 2014-07-15 10:37 /proc/self/ns/cgroup -> cgroup:[4026531835]
# cat /proc/self/cgroup
0::/batchjobs/container_id1
-After unsharing a new namespace, the view changes.
+After unsharing a new namespace, the view changes::
# ls -l /proc/self/ns/cgroup
lrwxrwxrwx 1 root root 0 2014-07-15 10:35 /proc/self/ns/cgroup -> cgroup:[4026532183]
@@ -1275,7 +1533,8 @@ namespace is destroyed. The cgroupns root and the actual cgroups
remain.
-6-2. The Root and Views
+The Root and Views
+------------------
The 'cgroupns root' for a cgroup namespace is the cgroup in which the
process calling unshare(2) is running. For example, if a process in
@@ -1284,7 +1543,7 @@ process calling unshare(2) is running. For example, if a process in
init_cgroup_ns, this is the real root ('/') cgroup.
The cgroupns root cgroup does not change even if the namespace creator
-process later moves to a different cgroup.
+process later moves to a different cgroup::
# ~/unshare -c # unshare cgroupns in some cgroup
# cat /proc/self/cgroup
@@ -1298,7 +1557,7 @@ Each process gets its namespace-specific view of "/proc/$PID/cgroup"
Processes running inside the cgroup namespace will be able to see
cgroup paths (in /proc/self/cgroup) only inside their root cgroup.
-From within an unshared cgroupns:
+From within an unshared cgroupns::
# sleep 100000 &
[1] 7353
@@ -1307,7 +1566,7 @@ From within an unshared cgroupns:
0::/sub_cgrp_1
From the initial cgroup namespace, the real cgroup path will be
-visible:
+visible::
$ cat /proc/7353/cgroup
0::/batchjobs/container_id1/sub_cgrp_1
@@ -1315,7 +1574,7 @@ visible:
From a sibling cgroup namespace (that is, a namespace rooted at a
different cgroup), the cgroup path relative to its own cgroup
namespace root will be shown. For instance, if PID 7353's cgroup
-namespace root is at '/batchjobs/container_id2', then it will see
+namespace root is at '/batchjobs/container_id2', then it will see::
# cat /proc/7353/cgroup
0::/../container_id2/sub_cgrp_1
@@ -1324,13 +1583,14 @@ Note that the relative path always starts with '/' to indicate that
its relative to the cgroup namespace root of the caller.
-6-3. Migration and setns(2)
+Migration and setns(2)
+----------------------
Processes inside a cgroup namespace can move into and out of the
namespace root if they have proper access to external cgroups. For
example, from inside a namespace with cgroupns root at
/batchjobs/container_id1, and assuming that the global hierarchy is
-still accessible inside cgroupns:
+still accessible inside cgroupns::
# cat /proc/7353/cgroup
0::/sub_cgrp_1
@@ -1352,10 +1612,11 @@ namespace. It is expected that the someone moves the attaching
process under the target cgroup namespace root.
-6-4. Interaction with Other Namespaces
+Interaction with Other Namespaces
+---------------------------------
Namespace specific cgroup hierarchy can be mounted by a process
-running inside a non-init cgroup namespace.
+running inside a non-init cgroup namespace::
# mount -t cgroup2 none $MOUNT_POINT
@@ -1368,27 +1629,27 @@ the view of cgroup hierarchy by namespace-private cgroupfs mount
provides a properly isolated cgroup view inside the container.
-P. Information on Kernel Programming
+Information on Kernel Programming
+=================================
This section contains kernel programming information in the areas
where interacting with cgroup is necessary. cgroup core and
controllers are not covered.
-P-1. Filesystem Support for Writeback
+Filesystem Support for Writeback
+--------------------------------
A filesystem can support cgroup writeback by updating
address_space_operations->writepage[s]() to annotate bio's using the
following two functions.
wbc_init_bio(@wbc, @bio)
-
Should be called for each bio carrying writeback data and
associates the bio with the inode's owner cgroup. Can be
called anytime between bio allocation and submission.
wbc_account_io(@wbc, @page, @bytes)
-
Should be called for each data segment being written out.
While this function doesn't care exactly when it's called
during the writeback session, it's the easiest and most
@@ -1409,11 +1670,12 @@ cases by skipping wbc_init_bio() or using bio_associate_blkcg()
directly.
-D. Deprecated v1 Core Features
+Deprecated v1 Core Features
+===========================
- Multiple hierarchies including named ones are not supported.
-- All mount options and remounting are not supported.
+- All v1 mount options are not supported.
- The "tasks" file is removed and "cgroup.procs" is not sorted.
@@ -1423,9 +1685,11 @@ D. Deprecated v1 Core Features
at the root instead.
-R. Issues with v1 and Rationales for v2
+Issues with v1 and Rationales for v2
+====================================
-R-1. Multiple Hierarchies
+Multiple Hierarchies
+--------------------
cgroup v1 allowed an arbitrary number of hierarchies and each
hierarchy could host any number of controllers. While this seemed to
@@ -1477,7 +1741,8 @@ how memory is distributed beyond a certain level while still wanting
to control how CPU cycles are distributed.
-R-2. Thread Granularity
+Thread Granularity
+------------------
cgroup v1 allowed threads of a process to belong to different cgroups.
This didn't make sense for some controllers and those controllers
@@ -1520,7 +1785,8 @@ misbehaving and poorly abstracted interfaces and kernel exposing and
locked into constructs inadvertently.
-R-3. Competition Between Inner Nodes and Threads
+Competition Between Inner Nodes and Threads
+-------------------------------------------
cgroup v1 allowed threads to be in any cgroups which created an
interesting problem where threads belonging to a parent cgroup and its
@@ -1539,7 +1805,7 @@ simply weren't available for threads.
The io controller implicitly created a hidden leaf node for each
cgroup to host the threads. The hidden leaf had its own copies of all
-the knobs with "leaf_" prefixed. While this allowed equivalent
+the knobs with ``leaf_`` prefixed. While this allowed equivalent
control over internal threads, it was with serious drawbacks. It
always added an extra layer of nesting which wouldn't be necessary
otherwise, made the interface messy and significantly complicated the
@@ -1560,7 +1826,8 @@ This clearly is a problem which needs to be addressed from cgroup core
in a uniform way.
-R-4. Other Interface Issues
+Other Interface Issues
+----------------------
cgroup v1 grew without oversight and developed a large number of
idiosyncrasies and inconsistencies. One issue on the cgroup core side
@@ -1588,9 +1855,11 @@ cgroup v2 establishes common conventions where appropriate and updates
controllers so that they expose minimal and consistent interfaces.
-R-5. Controller Issues and Remedies
+Controller Issues and Remedies
+------------------------------
-R-5-1. Memory
+Memory
+~~~~~~
The original lower boundary, the soft limit, is defined as a limit
that is per default unset. As a result, the set of cgroups that
diff --git a/Documentation/circular-buffers.txt b/Documentation/circular-buffers.txt
index 4a824d232472..d4628174b7c5 100644
--- a/Documentation/circular-buffers.txt
+++ b/Documentation/circular-buffers.txt
@@ -1,9 +1,9 @@
- ================
- CIRCULAR BUFFERS
- ================
+================
+Circular Buffers
+================
-By: David Howells <dhowells@redhat.com>
- Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+:Author: David Howells <dhowells@redhat.com>
+:Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Linux provides a number of features that can be used to implement circular
@@ -20,7 +20,7 @@ producer and just one consumer. It is possible to handle multiple producers by
serialising them, and to handle multiple consumers by serialising them.
-Contents:
+.. Contents:
(*) What is a circular buffer?
@@ -31,8 +31,8 @@ Contents:
- The consumer.
-==========================
-WHAT IS A CIRCULAR BUFFER?
+
+What is a circular buffer?
==========================
First of all, what is a circular buffer? A circular buffer is a buffer of
@@ -60,9 +60,7 @@ buffer, provided that neither index overtakes the other. The implementer must
be careful, however, as a region more than one unit in size may wrap the end of
the buffer and be broken into two segments.
-
-============================
-MEASURING POWER-OF-2 BUFFERS
+Measuring power-of-2 buffers
============================
Calculation of the occupancy or the remaining capacity of an arbitrarily sized
@@ -71,13 +69,13 @@ modulus (divide) instruction. However, if the buffer is of a power-of-2 size,
then a much quicker bitwise-AND instruction can be used instead.
Linux provides a set of macros for handling power-of-2 circular buffers. These
-can be made use of by:
+can be made use of by::
#include <linux/circ_buf.h>
The macros are:
- (*) Measure the remaining capacity of a buffer:
+ (#) Measure the remaining capacity of a buffer::
CIRC_SPACE(head_index, tail_index, buffer_size);
@@ -85,7 +83,7 @@ The macros are:
can be inserted.
- (*) Measure the maximum consecutive immediate space in a buffer:
+ (#) Measure the maximum consecutive immediate space in a buffer::
CIRC_SPACE_TO_END(head_index, tail_index, buffer_size);
@@ -94,14 +92,14 @@ The macros are:
beginning of the buffer.
- (*) Measure the occupancy of a buffer:
+ (#) Measure the occupancy of a buffer::
CIRC_CNT(head_index, tail_index, buffer_size);
This returns the number of items currently occupying a buffer[2].
- (*) Measure the non-wrapping occupancy of a buffer:
+ (#) Measure the non-wrapping occupancy of a buffer::
CIRC_CNT_TO_END(head_index, tail_index, buffer_size);
@@ -112,7 +110,7 @@ The macros are:
Each of these macros will nominally return a value between 0 and buffer_size-1,
however:
- [1] CIRC_SPACE*() are intended to be used in the producer. To the producer
+ (1) CIRC_SPACE*() are intended to be used in the producer. To the producer
they will return a lower bound as the producer controls the head index,
but the consumer may still be depleting the buffer on another CPU and
moving the tail index.
@@ -120,7 +118,7 @@ however:
To the consumer it will show an upper bound as the producer may be busy
depleting the space.
- [2] CIRC_CNT*() are intended to be used in the consumer. To the consumer they
+ (2) CIRC_CNT*() are intended to be used in the consumer. To the consumer they
will return a lower bound as the consumer controls the tail index, but the
producer may still be filling the buffer on another CPU and moving the
head index.
@@ -128,14 +126,12 @@ however:
To the producer it will show an upper bound as the consumer may be busy
emptying the buffer.
- [3] To a third party, the order in which the writes to the indices by the
+ (3) To a third party, the order in which the writes to the indices by the
producer and consumer become visible cannot be guaranteed as they are
independent and may be made on different CPUs - so the result in such a
situation will merely be a guess, and may even be negative.
-
-===========================================
-USING MEMORY BARRIERS WITH CIRCULAR BUFFERS
+Using memory barriers with circular buffers
===========================================
By using memory barriers in conjunction with circular buffers, you can avoid
@@ -152,10 +148,10 @@ time, and only one thing should be emptying a buffer at any one time, but the
two sides can operate simultaneously.
-THE PRODUCER
+The producer
------------
-The producer will look something like this:
+The producer will look something like this::
spin_lock(&producer_lock);
@@ -193,10 +189,10 @@ ordering between the read of the index indicating that the consumer has
vacated a given element and the write by the producer to that same element.
-THE CONSUMER
+The Consumer
------------
-The consumer will look something like this:
+The consumer will look something like this::
spin_lock(&consumer_lock);
@@ -235,8 +231,7 @@ prevents the compiler from tearing the store, and enforces ordering
against previous accesses.
-===============
-FURTHER READING
+Further reading
===============
See also Documentation/memory-barriers.txt for a description of Linux's memory
diff --git a/Documentation/clk.txt b/Documentation/clk.txt
index 22f026aa2f34..be909ed45970 100644
--- a/Documentation/clk.txt
+++ b/Documentation/clk.txt
@@ -1,12 +1,16 @@
- The Common Clk Framework
- Mike Turquette <mturquette@ti.com>
+========================
+The Common Clk Framework
+========================
+
+:Author: Mike Turquette <mturquette@ti.com>
This document endeavours to explain the common clk framework details,
and how to port a platform over to this framework. It is not yet a
detailed explanation of the clock api in include/linux/clk.h, but
perhaps someday it will include that information.
- Part 1 - introduction and interface split
+Introduction and interface split
+================================
The common clk framework is an interface to control the clock nodes
available on various devices today. This may come in the form of clock
@@ -35,10 +39,11 @@ is defined in struct clk_foo and pointed to within struct clk_core. This
allows for easy navigation between the two discrete halves of the common
clock interface.
- Part 2 - common data structures and api
+Common data structures and api
+==============================
Below is the common struct clk_core definition from
-drivers/clk/clk.c, modified for brevity:
+drivers/clk/clk.c, modified for brevity::
struct clk_core {
const char *name;
@@ -59,7 +64,7 @@ struct clk. That api is documented in include/linux/clk.h.
Platforms and devices utilizing the common struct clk_core use the struct
clk_ops pointer in struct clk_core to perform the hardware-specific parts of
-the operations defined in clk-provider.h:
+the operations defined in clk-provider.h::
struct clk_ops {
int (*prepare)(struct clk_hw *hw);
@@ -95,19 +100,20 @@ the operations defined in clk-provider.h:
struct dentry *dentry);
};
- Part 3 - hardware clk implementations
+Hardware clk implementations
+============================
The strength of the common struct clk_core comes from its .ops and .hw pointers
which abstract the details of struct clk from the hardware-specific bits, and
vice versa. To illustrate consider the simple gateable clk implementation in
-drivers/clk/clk-gate.c:
+drivers/clk/clk-gate.c::
-struct clk_gate {
- struct clk_hw hw;
- void __iomem *reg;
- u8 bit_idx;
- ...
-};
+ struct clk_gate {
+ struct clk_hw hw;
+ void __iomem *reg;
+ u8 bit_idx;
+ ...
+ };
struct clk_gate contains struct clk_hw hw as well as hardware-specific
knowledge about which register and bit controls this clk's gating.
@@ -115,7 +121,7 @@ Nothing about clock topology or accounting, such as enable_count or
notifier_count, is needed here. That is all handled by the common
framework code and struct clk_core.
-Let's walk through enabling this clk from driver code:
+Let's walk through enabling this clk from driver code::
struct clk *clk;
clk = clk_get(NULL, "my_gateable_clk");
@@ -123,70 +129,71 @@ Let's walk through enabling this clk from driver code:
clk_prepare(clk);
clk_enable(clk);
-The call graph for clk_enable is very simple:
+The call graph for clk_enable is very simple::
-clk_enable(clk);
- clk->ops->enable(clk->hw);
- [resolves to...]
- clk_gate_enable(hw);
- [resolves struct clk gate with to_clk_gate(hw)]
- clk_gate_set_bit(gate);
+ clk_enable(clk);
+ clk->ops->enable(clk->hw);
+ [resolves to...]
+ clk_gate_enable(hw);
+ [resolves struct clk gate with to_clk_gate(hw)]
+ clk_gate_set_bit(gate);
-And the definition of clk_gate_set_bit:
+And the definition of clk_gate_set_bit::
-static void clk_gate_set_bit(struct clk_gate *gate)
-{
- u32 reg;
+ static void clk_gate_set_bit(struct clk_gate *gate)
+ {
+ u32 reg;
- reg = __raw_readl(gate->reg);
- reg |= BIT(gate->bit_idx);
- writel(reg, gate->reg);
-}
+ reg = __raw_readl(gate->reg);
+ reg |= BIT(gate->bit_idx);
+ writel(reg, gate->reg);
+ }
-Note that to_clk_gate is defined as:
+Note that to_clk_gate is defined as::
-#define to_clk_gate(_hw) container_of(_hw, struct clk_gate, hw)
+ #define to_clk_gate(_hw) container_of(_hw, struct clk_gate, hw)
This pattern of abstraction is used for every clock hardware
representation.
- Part 4 - supporting your own clk hardware
+Supporting your own clk hardware
+================================
When implementing support for a new type of clock it is only necessary to
-include the following header:
+include the following header::
-#include <linux/clk-provider.h>
+ #include <linux/clk-provider.h>
To construct a clk hardware structure for your platform you must define
-the following:
+the following::
-struct clk_foo {
- struct clk_hw hw;
- ... hardware specific data goes here ...
-};
+ struct clk_foo {
+ struct clk_hw hw;
+ ... hardware specific data goes here ...
+ };
To take advantage of your data you'll need to support valid operations
-for your clk:
+for your clk::
-struct clk_ops clk_foo_ops {
- .enable = &clk_foo_enable;
- .disable = &clk_foo_disable;
-};
+ struct clk_ops clk_foo_ops {
+ .enable = &clk_foo_enable;
+ .disable = &clk_foo_disable;
+ };
-Implement the above functions using container_of:
+Implement the above functions using container_of::
-#define to_clk_foo(_hw) container_of(_hw, struct clk_foo, hw)
+ #define to_clk_foo(_hw) container_of(_hw, struct clk_foo, hw)
-int clk_foo_enable(struct clk_hw *hw)
-{
- struct clk_foo *foo;
+ int clk_foo_enable(struct clk_hw *hw)
+ {
+ struct clk_foo *foo;
- foo = to_clk_foo(hw);
+ foo = to_clk_foo(hw);
- ... perform magic on foo ...
+ ... perform magic on foo ...
- return 0;
-};
+ return 0;
+ };
Below is a matrix detailing which clk_ops are mandatory based upon the
hardware capabilities of that clock. A cell marked as "y" means
@@ -194,41 +201,56 @@ mandatory, a cell marked as "n" implies that either including that
callback is invalid or otherwise unnecessary. Empty cells are either
optional or must be evaluated on a case-by-case basis.
- clock hardware characteristics
- -----------------------------------------------------------
- | gate | change rate | single parent | multiplexer | root |
- |------|-------------|---------------|-------------|------|
-.prepare | | | | | |
-.unprepare | | | | | |
- | | | | | |
-.enable | y | | | | |
-.disable | y | | | | |
-.is_enabled | y | | | | |
- | | | | | |
-.recalc_rate | | y | | | |
-.round_rate | | y [1] | | | |
-.determine_rate | | y [1] | | | |
-.set_rate | | y | | | |
- | | | | | |
-.set_parent | | | n | y | n |
-.get_parent | | | n | y | n |
- | | | | | |
-.recalc_accuracy| | | | | |
- | | | | | |
-.init | | | | | |
- -----------------------------------------------------------
-[1] either one of round_rate or determine_rate is required.
+.. table:: clock hardware characteristics
+
+ +----------------+------+-------------+---------------+-------------+------+
+ | | gate | change rate | single parent | multiplexer | root |
+ +================+======+=============+===============+=============+======+
+ |.prepare | | | | | |
+ +----------------+------+-------------+---------------+-------------+------+
+ |.unprepare | | | | | |
+ +----------------+------+-------------+---------------+-------------+------+
+ +----------------+------+-------------+---------------+-------------+------+
+ |.enable | y | | | | |
+ +----------------+------+-------------+---------------+-------------+------+
+ |.disable | y | | | | |
+ +----------------+------+-------------+---------------+-------------+------+
+ |.is_enabled | y | | | | |
+ +----------------+------+-------------+---------------+-------------+------+
+ +----------------+------+-------------+---------------+-------------+------+
+ |.recalc_rate | | y | | | |
+ +----------------+------+-------------+---------------+-------------+------+
+ |.round_rate | | y [1]_ | | | |
+ +----------------+------+-------------+---------------+-------------+------+
+ |.determine_rate | | y [1]_ | | | |
+ +----------------+------+-------------+---------------+-------------+------+
+ |.set_rate | | y | | | |
+ +----------------+------+-------------+---------------+-------------+------+
+ +----------------+------+-------------+---------------+-------------+------+
+ |.set_parent | | | n | y | n |
+ +----------------+------+-------------+---------------+-------------+------+
+ |.get_parent | | | n | y | n |
+ +----------------+------+-------------+---------------+-------------+------+
+ +----------------+------+-------------+---------------+-------------+------+
+ |.recalc_accuracy| | | | | |
+ +----------------+------+-------------+---------------+-------------+------+
+ +----------------+------+-------------+---------------+-------------+------+
+ |.init | | | | | |
+ +----------------+------+-------------+---------------+-------------+------+
+
+.. [1] either one of round_rate or determine_rate is required.
Finally, register your clock at run-time with a hardware-specific
registration function. This function simply populates struct clk_foo's
data and then passes the common struct clk parameters to the framework
-with a call to:
+with a call to::
-clk_register(...)
+ clk_register(...)
-See the basic clock types in drivers/clk/clk-*.c for examples.
+See the basic clock types in ``drivers/clk/clk-*.c`` for examples.
- Part 5 - Disabling clock gating of unused clocks
+Disabling clock gating of unused clocks
+=======================================
Sometimes during development it can be useful to be able to bypass the
default disabling of unused clocks. For example, if drivers aren't enabling
@@ -239,7 +261,8 @@ are sorted out.
To bypass this disabling, include "clk_ignore_unused" in the bootargs to the
kernel.
- Part 6 - Locking
+Locking
+=======
The common clock framework uses two global locks, the prepare lock and the
enable lock.
diff --git a/Documentation/conf.py b/Documentation/conf.py
index bacf9d337c89..63857d33778c 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -29,7 +29,7 @@ from load_config import loadConfig
# -- General configuration ------------------------------------------------
# If your documentation needs a minimal Sphinx version, state it here.
-needs_sphinx = '1.2'
+needs_sphinx = '1.3'
# Add any Sphinx extension module names here, as strings. They can be
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
@@ -271,16 +271,35 @@ latex_elements = {
# Additional stuff for the LaTeX preamble.
'preamble': '''
- % Adjust margins
- \\usepackage[margin=0.5in, top=1in, bottom=1in]{geometry}
+ % Use some font with UTF-8 support with XeLaTeX
+ \\usepackage{fontspec}
+ \\setsansfont{DejaVu Serif}
+ \\setromanfont{DejaVu Sans}
+ \\setmonofont{DejaVu Sans Mono}
+
+ '''
+}
+
+# Fix reference escape troubles with Sphinx 1.4.x
+if major == 1 and minor > 3:
+ latex_elements['preamble'] += '\\renewcommand*{\\DUrole}[2]{ #2 }\n'
+
+if major == 1 and minor <= 4:
+ latex_elements['preamble'] += '\\usepackage[margin=0.5in, top=1in, bottom=1in]{geometry}'
+elif major == 1 and (minor > 5 or (minor == 5 and patch >= 3)):
+ latex_elements['sphinxsetup'] = 'hmargin=0.5in, vmargin=1in'
+ latex_elements['preamble'] += '\\fvset{fontsize=auto}\n'
- % Allow generate some pages in landscape
- \\usepackage{lscape}
+# Customize notice background colors on Sphinx < 1.6:
+if major == 1 and minor < 6:
+ latex_elements['preamble'] += '''
+ \\usepackage{ifthen}
% Put notes in color and let them be inside a table
\\definecolor{NoteColor}{RGB}{204,255,255}
\\definecolor{WarningColor}{RGB}{255,204,204}
\\definecolor{AttentionColor}{RGB}{255,255,204}
+ \\definecolor{ImportantColor}{RGB}{192,255,204}
\\definecolor{OtherColor}{RGB}{204,204,204}
\\newlength{\\mynoticelength}
\\makeatletter\\newenvironment{coloredbox}[1]{%
@@ -301,7 +320,12 @@ latex_elements = {
\\ifthenelse%
{\\equal{\\py@noticetype}{attention}}%
{\\colorbox{AttentionColor}{\\usebox{\\@tempboxa}}}%
- {\\colorbox{OtherColor}{\\usebox{\\@tempboxa}}}%
+ {%
+ \\ifthenelse%
+ {\\equal{\\py@noticetype}{important}}%
+ {\\colorbox{ImportantColor}{\\usebox{\\@tempboxa}}}%
+ {\\colorbox{OtherColor}{\\usebox{\\@tempboxa}}}%
+ }%
}%
}%
}\\makeatother
@@ -320,46 +344,66 @@ latex_elements = {
}
\\makeatother
- % Use some font with UTF-8 support with XeLaTeX
- \\usepackage{fontspec}
- \\setsansfont{DejaVu Serif}
- \\setromanfont{DejaVu Sans}
- \\setmonofont{DejaVu Sans Mono}
-
- % To allow adjusting table sizes
- \\usepackage{adjustbox}
-
'''
-}
-# Fix reference escape troubles with Sphinx 1.4.x
-if major == 1 and minor > 3:
- latex_elements['preamble'] += '\\renewcommand*{\\DUrole}[2]{ #2 }\n'
+# With Sphinx 1.6, it is possible to change the Bg color directly
+# by using:
+# \definecolor{sphinxnoteBgColor}{RGB}{204,255,255}
+# \definecolor{sphinxwarningBgColor}{RGB}{255,204,204}
+# \definecolor{sphinxattentionBgColor}{RGB}{255,255,204}
+# \definecolor{sphinximportantBgColor}{RGB}{192,255,204}
+#
+# However, it require to use sphinx heavy box with:
+#
+# \renewenvironment{sphinxlightbox} {%
+# \\begin{sphinxheavybox}
+# }
+# \\end{sphinxheavybox}
+# }
+#
+# Unfortunately, the implementation is buggy: if a note is inside a
+# table, it isn't displayed well. So, for now, let's use boring
+# black and white notes.
# Grouping the document tree into LaTeX files. List of tuples
# (source start file, target name, title,
# author, documentclass [howto, manual, or own class]).
+# Sorted in alphabetical order
latex_documents = [
- ('doc-guide/index', 'kernel-doc-guide.tex', 'Linux Kernel Documentation Guide',
- 'The kernel development community', 'manual'),
('admin-guide/index', 'linux-user.tex', 'Linux Kernel User Documentation',
'The kernel development community', 'manual'),
('core-api/index', 'core-api.tex', 'The kernel core API manual',
'The kernel development community', 'manual'),
- ('driver-api/index', 'driver-api.tex', 'The kernel driver API manual',
+ ('crypto/index', 'crypto-api.tex', 'Linux Kernel Crypto API manual',
'The kernel development community', 'manual'),
- ('input/index', 'linux-input.tex', 'The Linux input driver subsystem',
+ ('dev-tools/index', 'dev-tools.tex', 'Development tools for the Kernel',
'The kernel development community', 'manual'),
- ('kernel-documentation', 'kernel-documentation.tex', 'The Linux Kernel Documentation',
+ ('doc-guide/index', 'kernel-doc-guide.tex', 'Linux Kernel Documentation Guide',
'The kernel development community', 'manual'),
- ('process/index', 'development-process.tex', 'Linux Kernel Development Documentation',
+ ('driver-api/index', 'driver-api.tex', 'The kernel driver API manual',
+ 'The kernel development community', 'manual'),
+ ('filesystems/index', 'filesystems.tex', 'Linux Filesystems API',
'The kernel development community', 'manual'),
('gpu/index', 'gpu.tex', 'Linux GPU Driver Developer\'s Guide',
'The kernel development community', 'manual'),
+ ('input/index', 'linux-input.tex', 'The Linux input driver subsystem',
+ 'The kernel development community', 'manual'),
+ ('kernel-hacking/index', 'kernel-hacking.tex', 'Unreliable Guide To Hacking The Linux Kernel',
+ 'The kernel development community', 'manual'),
('media/index', 'media.tex', 'Linux Media Subsystem Documentation',
'The kernel development community', 'manual'),
+ ('networking/index', 'networking.tex', 'Linux Networking Documentation',
+ 'The kernel development community', 'manual'),
+ ('process/index', 'development-process.tex', 'Linux Kernel Development Documentation',
+ 'The kernel development community', 'manual'),
('security/index', 'security.tex', 'The kernel security subsystem manual',
'The kernel development community', 'manual'),
+ ('sh/index', 'sh.tex', 'SuperH architecture implementation manual',
+ 'The kernel development community', 'manual'),
+ ('sound/index', 'sound.tex', 'Linux Sound Subsystem Documentation',
+ 'The kernel development community', 'manual'),
+ ('userspace-api/index', 'userspace-api.tex', 'The Linux kernel user-space API guide',
+ 'The kernel development community', 'manual'),
]
# The name of an image file (relative to this directory) to place at the top of
diff --git a/Documentation/core-api/assoc_array.rst b/Documentation/core-api/assoc_array.rst
index d83cfff9ea43..8231b915c939 100644
--- a/Documentation/core-api/assoc_array.rst
+++ b/Documentation/core-api/assoc_array.rst
@@ -10,7 +10,10 @@ properties:
1. Objects are opaque pointers. The implementation does not care where they
point (if anywhere) or what they point to (if anything).
-.. note:: Pointers to objects _must_ be zero in the least significant bit.
+
+ .. note::
+
+ Pointers to objects _must_ be zero in the least significant bit.
2. Objects do not need to contain linkage blocks for use by the array. This
permits an object to be located in multiple arrays simultaneously.
diff --git a/Documentation/core-api/atomic_ops.rst b/Documentation/core-api/atomic_ops.rst
index 55e43f1c80de..fce929144ccd 100644
--- a/Documentation/core-api/atomic_ops.rst
+++ b/Documentation/core-api/atomic_ops.rst
@@ -303,6 +303,11 @@ defined which accomplish this::
void smp_mb__before_atomic(void);
void smp_mb__after_atomic(void);
+Preceding a non-value-returning read-modify-write atomic operation with
+smp_mb__before_atomic() and following it with smp_mb__after_atomic()
+provides the same full ordering that is provided by value-returning
+read-modify-write atomic operations.
+
For example, smp_mb__before_atomic() can be used like so::
obj->dead = 1;
diff --git a/Documentation/core-api/genalloc.rst b/Documentation/core-api/genalloc.rst
new file mode 100644
index 000000000000..6b38a39fab24
--- /dev/null
+++ b/Documentation/core-api/genalloc.rst
@@ -0,0 +1,144 @@
+The genalloc/genpool subsystem
+==============================
+
+There are a number of memory-allocation subsystems in the kernel, each
+aimed at a specific need. Sometimes, however, a kernel developer needs to
+implement a new allocator for a specific range of special-purpose memory;
+often that memory is located on a device somewhere. The author of the
+driver for that device can certainly write a little allocator to get the
+job done, but that is the way to fill the kernel with dozens of poorly
+tested allocators. Back in 2005, Jes Sorensen lifted one of those
+allocators from the sym53c8xx_2 driver and posted_ it as a generic module
+for the creation of ad hoc memory allocators. This code was merged
+for the 2.6.13 release; it has been modified considerably since then.
+
+.. _posted: https://lwn.net/Articles/125842/
+
+Code using this allocator should include <linux/genalloc.h>. The action
+begins with the creation of a pool using one of:
+
+.. kernel-doc:: lib/genalloc.c
+ :functions: gen_pool_create
+
+.. kernel-doc:: lib/genalloc.c
+ :functions: devm_gen_pool_create
+
+A call to :c:func:`gen_pool_create` will create a pool. The granularity of
+allocations is set with min_alloc_order; it is a log-base-2 number like
+those used by the page allocator, but it refers to bytes rather than pages.
+So, if min_alloc_order is passed as 3, then all allocations will be a
+multiple of eight bytes. Increasing min_alloc_order decreases the memory
+required to track the memory in the pool. The nid parameter specifies
+which NUMA node should be used for the allocation of the housekeeping
+structures; it can be -1 if the caller doesn't care.
+
+The "managed" interface :c:func:`devm_gen_pool_create` ties the pool to a
+specific device. Among other things, it will automatically clean up the
+pool when the given device is destroyed.
+
+A pool is shut down with:
+
+.. kernel-doc:: lib/genalloc.c
+ :functions: gen_pool_destroy
+
+It's worth noting that, if there are still allocations outstanding from the
+given pool, this function will take the rather extreme step of invoking
+BUG(), crashing the entire system. You have been warned.
+
+A freshly created pool has no memory to allocate. It is fairly useless in
+that state, so one of the first orders of business is usually to add memory
+to the pool. That can be done with one of:
+
+.. kernel-doc:: include/linux/genalloc.h
+ :functions: gen_pool_add
+
+.. kernel-doc:: lib/genalloc.c
+ :functions: gen_pool_add_virt
+
+A call to :c:func:`gen_pool_add` will place the size bytes of memory
+starting at addr (in the kernel's virtual address space) into the given
+pool, once again using nid as the node ID for ancillary memory allocations.
+The :c:func:`gen_pool_add_virt` variant associates an explicit physical
+address with the memory; this is only necessary if the pool will be used
+for DMA allocations.
+
+The functions for allocating memory from the pool (and putting it back)
+are:
+
+.. kernel-doc:: lib/genalloc.c
+ :functions: gen_pool_alloc
+
+.. kernel-doc:: lib/genalloc.c
+ :functions: gen_pool_dma_alloc
+
+.. kernel-doc:: lib/genalloc.c
+ :functions: gen_pool_free
+
+As one would expect, :c:func:`gen_pool_alloc` will allocate size< bytes
+from the given pool. The :c:func:`gen_pool_dma_alloc` variant allocates
+memory for use with DMA operations, returning the associated physical
+address in the space pointed to by dma. This will only work if the memory
+was added with :c:func:`gen_pool_add_virt`. Note that this function
+departs from the usual genpool pattern of using unsigned long values to
+represent kernel addresses; it returns a void * instead.
+
+That all seems relatively simple; indeed, some developers clearly found it
+to be too simple. After all, the interface above provides no control over
+how the allocation functions choose which specific piece of memory to
+return. If that sort of control is needed, the following functions will be
+of interest:
+
+.. kernel-doc:: lib/genalloc.c
+ :functions: gen_pool_alloc_algo
+
+.. kernel-doc:: lib/genalloc.c
+ :functions: gen_pool_set_algo
+
+Allocations with :c:func:`gen_pool_alloc_algo` specify an algorithm to be
+used to choose the memory to be allocated; the default algorithm can be set
+with :c:func:`gen_pool_set_algo`. The data value is passed to the
+algorithm; most ignore it, but it is occasionally needed. One can,
+naturally, write a special-purpose algorithm, but there is a fair set
+already available:
+
+- gen_pool_first_fit is a simple first-fit allocator; this is the default
+ algorithm if none other has been specified.
+
+- gen_pool_first_fit_align forces the allocation to have a specific
+ alignment (passed via data in a genpool_data_align structure).
+
+- gen_pool_first_fit_order_align aligns the allocation to the order of the
+ size. A 60-byte allocation will thus be 64-byte aligned, for example.
+
+- gen_pool_best_fit, as one would expect, is a simple best-fit allocator.
+
+- gen_pool_fixed_alloc allocates at a specific offset (passed in a
+ genpool_data_fixed structure via the data parameter) within the pool.
+ If the indicated memory is not available the allocation fails.
+
+There is a handful of other functions, mostly for purposes like querying
+the space available in the pool or iterating through chunks of memory.
+Most users, however, should not need much beyond what has been described
+above. With luck, wider awareness of this module will help to prevent the
+writing of special-purpose memory allocators in the future.
+
+.. kernel-doc:: lib/genalloc.c
+ :functions: gen_pool_virt_to_phys
+
+.. kernel-doc:: lib/genalloc.c
+ :functions: gen_pool_for_each_chunk
+
+.. kernel-doc:: lib/genalloc.c
+ :functions: addr_in_gen_pool
+
+.. kernel-doc:: lib/genalloc.c
+ :functions: gen_pool_avail
+
+.. kernel-doc:: lib/genalloc.c
+ :functions: gen_pool_size
+
+.. kernel-doc:: lib/genalloc.c
+ :functions: gen_pool_get
+
+.. kernel-doc:: lib/genalloc.c
+ :functions: of_gen_pool_get
diff --git a/Documentation/core-api/index.rst b/Documentation/core-api/index.rst
index 62abd36bfffb..d5bbe035316d 100644
--- a/Documentation/core-api/index.rst
+++ b/Documentation/core-api/index.rst
@@ -19,6 +19,8 @@ Core utilities
workqueue
genericirq
flexible-arrays
+ librs
+ genalloc
Interfaces for kernel debugging
===============================
diff --git a/Documentation/core-api/kernel-api.rst b/Documentation/core-api/kernel-api.rst
index 9ec8488319dc..5da10184d908 100644
--- a/Documentation/core-api/kernel-api.rst
+++ b/Documentation/core-api/kernel-api.rst
@@ -114,7 +114,7 @@ The Slab Cache
User Space Memory Access
------------------------
-.. kernel-doc:: arch/x86/include/asm/uaccess_32.h
+.. kernel-doc:: arch/x86/include/asm/uaccess.h
:internal:
.. kernel-doc:: arch/x86/lib/usercopy_32.c
@@ -344,3 +344,38 @@ codecs, and devices with strict requirements for interface clocking.
.. kernel-doc:: include/linux/clk.h
:internal:
+
+Synchronization Primitives
+==========================
+
+Read-Copy Update (RCU)
+----------------------
+
+.. kernel-doc:: include/linux/rcupdate.h
+
+.. kernel-doc:: include/linux/rcupdate_wait.h
+
+.. kernel-doc:: include/linux/rcutree.h
+
+.. kernel-doc:: kernel/rcu/tree.c
+
+.. kernel-doc:: kernel/rcu/tree_plugin.h
+
+.. kernel-doc:: kernel/rcu/tree_exp.h
+
+.. kernel-doc:: kernel/rcu/update.c
+
+.. kernel-doc:: include/linux/srcu.h
+
+.. kernel-doc:: kernel/rcu/srcutree.c
+
+.. kernel-doc:: include/linux/rculist_bl.h
+
+.. kernel-doc:: include/linux/rculist.h
+
+.. kernel-doc:: include/linux/rculist_nulls.h
+
+.. kernel-doc:: include/linux/rcu_sync.h
+
+.. kernel-doc:: kernel/rcu/sync.c
+
diff --git a/Documentation/core-api/librs.rst b/Documentation/core-api/librs.rst
new file mode 100644
index 000000000000..6010f5bc5bf9
--- /dev/null
+++ b/Documentation/core-api/librs.rst
@@ -0,0 +1,212 @@
+==========================================
+Reed-Solomon Library Programming Interface
+==========================================
+
+:Author: Thomas Gleixner
+
+Introduction
+============
+
+The generic Reed-Solomon Library provides encoding, decoding and error
+correction functions.
+
+Reed-Solomon codes are used in communication and storage applications to
+ensure data integrity.
+
+This documentation is provided for developers who want to utilize the
+functions provided by the library.
+
+Known Bugs And Assumptions
+==========================
+
+None.
+
+Usage
+=====
+
+This chapter provides examples of how to use the library.
+
+Initializing
+------------
+
+The init function init_rs returns a pointer to an rs decoder structure,
+which holds the necessary information for encoding, decoding and error
+correction with the given polynomial. It either uses an existing
+matching decoder or creates a new one. On creation all the lookup tables
+for fast en/decoding are created. The function may take a while, so make
+sure not to call it in critical code paths.
+
+::
+
+ /* the Reed Solomon control structure */
+ static struct rs_control *rs_decoder;
+
+ /* Symbolsize is 10 (bits)
+ * Primitive polynomial is x^10+x^3+1
+ * first consecutive root is 0
+ * primitive element to generate roots = 1
+ * generator polynomial degree (number of roots) = 6
+ */
+ rs_decoder = init_rs (10, 0x409, 0, 1, 6);
+
+
+Encoding
+--------
+
+The encoder calculates the Reed-Solomon code over the given data length
+and stores the result in the parity buffer. Note that the parity buffer
+must be initialized before calling the encoder.
+
+The expanded data can be inverted on the fly by providing a non-zero
+inversion mask. The expanded data is XOR'ed with the mask. This is used
+e.g. for FLASH ECC, where the all 0xFF is inverted to an all 0x00. The
+Reed-Solomon code for all 0x00 is all 0x00. The code is inverted before
+storing to FLASH so it is 0xFF too. This prevents that reading from an
+erased FLASH results in ECC errors.
+
+The databytes are expanded to the given symbol size on the fly. There is
+no support for encoding continuous bitstreams with a symbol size != 8 at
+the moment. If it is necessary it should be not a big deal to implement
+such functionality.
+
+::
+
+ /* Parity buffer. Size = number of roots */
+ uint16_t par[6];
+ /* Initialize the parity buffer */
+ memset(par, 0, sizeof(par));
+ /* Encode 512 byte in data8. Store parity in buffer par */
+ encode_rs8 (rs_decoder, data8, 512, par, 0);
+
+
+Decoding
+--------
+
+The decoder calculates the syndrome over the given data length and the
+received parity symbols and corrects errors in the data.
+
+If a syndrome is available from a hardware decoder then the syndrome
+calculation is skipped.
+
+The correction of the data buffer can be suppressed by providing a
+correction pattern buffer and an error location buffer to the decoder.
+The decoder stores the calculated error location and the correction
+bitmask in the given buffers. This is useful for hardware decoders which
+use a weird bit ordering scheme.
+
+The databytes are expanded to the given symbol size on the fly. There is
+no support for decoding continuous bitstreams with a symbolsize != 8 at
+the moment. If it is necessary it should be not a big deal to implement
+such functionality.
+
+Decoding with syndrome calculation, direct data correction
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+ /* Parity buffer. Size = number of roots */
+ uint16_t par[6];
+ uint8_t data[512];
+ int numerr;
+ /* Receive data */
+ .....
+ /* Receive parity */
+ .....
+ /* Decode 512 byte in data8.*/
+ numerr = decode_rs8 (rs_decoder, data8, par, 512, NULL, 0, NULL, 0, NULL);
+
+
+Decoding with syndrome given by hardware decoder, direct data correction
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+ /* Parity buffer. Size = number of roots */
+ uint16_t par[6], syn[6];
+ uint8_t data[512];
+ int numerr;
+ /* Receive data */
+ .....
+ /* Receive parity */
+ .....
+ /* Get syndrome from hardware decoder */
+ .....
+ /* Decode 512 byte in data8.*/
+ numerr = decode_rs8 (rs_decoder, data8, par, 512, syn, 0, NULL, 0, NULL);
+
+
+Decoding with syndrome given by hardware decoder, no direct data correction.
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Note: It's not necessary to give data and received parity to the
+decoder.
+
+::
+
+ /* Parity buffer. Size = number of roots */
+ uint16_t par[6], syn[6], corr[8];
+ uint8_t data[512];
+ int numerr, errpos[8];
+ /* Receive data */
+ .....
+ /* Receive parity */
+ .....
+ /* Get syndrome from hardware decoder */
+ .....
+ /* Decode 512 byte in data8.*/
+ numerr = decode_rs8 (rs_decoder, NULL, NULL, 512, syn, 0, errpos, 0, corr);
+ for (i = 0; i < numerr; i++) {
+ do_error_correction_in_your_buffer(errpos[i], corr[i]);
+ }
+
+
+Cleanup
+-------
+
+The function free_rs frees the allocated resources, if the caller is
+the last user of the decoder.
+
+::
+
+ /* Release resources */
+ free_rs(rs_decoder);
+
+
+Structures
+==========
+
+This chapter contains the autogenerated documentation of the structures
+which are used in the Reed-Solomon Library and are relevant for a
+developer.
+
+.. kernel-doc:: include/linux/rslib.h
+ :internal:
+
+Public Functions Provided
+=========================
+
+This chapter contains the autogenerated documentation of the
+Reed-Solomon functions which are exported.
+
+.. kernel-doc:: lib/reed_solomon/reed_solomon.c
+ :export:
+
+Credits
+=======
+
+The library code for encoding and decoding was written by Phil Karn.
+
+::
+
+ Copyright 2002, Phil Karn, KA9Q
+ May be used under the terms of the GNU General Public License (GPL)
+
+
+The wrapper functions and interfaces are written by Thomas Gleixner.
+
+Many users have provided bugfixes, improvements and helping hands for
+testing. Thanks a lot.
+
+The following people have contributed to this document:
+
+Thomas Gleixner\ tglx@linutronix.de
diff --git a/Documentation/core-api/workqueue.rst b/Documentation/core-api/workqueue.rst
index ffdec94fbca1..00a5ba51e63f 100644
--- a/Documentation/core-api/workqueue.rst
+++ b/Documentation/core-api/workqueue.rst
@@ -39,8 +39,8 @@ up.
Although MT wq wasted a lot of resource, the level of concurrency
provided was unsatisfactory. The limitation was common to both ST and
MT wq albeit less severe on MT. Each wq maintained its own separate
-worker pool. A MT wq could provide only one execution context per CPU
-while a ST wq one for the whole system. Work items had to compete for
+worker pool. An MT wq could provide only one execution context per CPU
+while an ST wq one for the whole system. Work items had to compete for
those very limited execution contexts leading to various problems
including proneness to deadlocks around the single execution context.
@@ -151,7 +151,7 @@ Application Programming Interface (API)
``alloc_workqueue()`` allocates a wq. The original
``create_*workqueue()`` functions are deprecated and scheduled for
-removal. ``alloc_workqueue()`` takes three arguments - @``name``,
+removal. ``alloc_workqueue()`` takes three arguments - ``@name``,
``@flags`` and ``@max_active``. ``@name`` is the name of the wq and
also used as the name of the rescuer thread if there is one.
@@ -197,7 +197,7 @@ resources, scheduled and executed.
served by worker threads with elevated nice level.
Note that normal and highpri worker-pools don't interact with
- each other. Each maintain its separate pool of workers and
+ each other. Each maintains its separate pool of workers and
implements concurrency management among its workers.
``WQ_CPU_INTENSIVE``
@@ -243,11 +243,15 @@ throttling the number of active work items, specifying '0' is
recommended.
Some users depend on the strict execution ordering of ST wq. The
-combination of ``@max_active`` of 1 and ``WQ_UNBOUND`` is used to
-achieve this behavior. Work items on such wq are always queued to the
-unbound worker-pools and only one work item can be active at any given
+combination of ``@max_active`` of 1 and ``WQ_UNBOUND`` used to
+achieve this behavior. Work items on such wq were always queued to the
+unbound worker-pools and only one work item could be active at any given
time thus achieving the same ordering property as ST wq.
+In the current implementation the above configuration only guarantees
+ST behavior within a given NUMA node. Instead ``alloc_ordered_queue()`` should
+be used to achieve system-wide ST behavior.
+
Example Execution Scenarios
===========================
diff --git a/Documentation/cpu-freq/index.txt b/Documentation/cpu-freq/index.txt
index 03a7cee6ac73..c15e75386a05 100644
--- a/Documentation/cpu-freq/index.txt
+++ b/Documentation/cpu-freq/index.txt
@@ -32,8 +32,6 @@ cpufreq-stats.txt - General description of sysfs cpufreq stats.
index.txt - File index, Mailing list and Links (this document)
-intel-pstate.txt - Intel pstate cpufreq driver specific file.
-
pcc-cpufreq.txt - PCC cpufreq driver specific file.
diff --git a/Documentation/cpu-load.txt b/Documentation/cpu-load.txt
index 287224e57cfc..2d01ce43d2a2 100644
--- a/Documentation/cpu-load.txt
+++ b/Documentation/cpu-load.txt
@@ -1,9 +1,10 @@
+========
CPU load
---------
+========
-Linux exports various bits of information via `/proc/stat' and
-`/proc/uptime' that userland tools, such as top(1), use to calculate
-the average time system spent in a particular state, for example:
+Linux exports various bits of information via ``/proc/stat`` and
+``/proc/uptime`` that userland tools, such as top(1), use to calculate
+the average time system spent in a particular state, for example::
$ iostat
Linux 2.6.18.3-exp (linmac) 02/20/2007
@@ -17,7 +18,7 @@ Here the system thinks that over the default sampling period the
system spent 10.01% of the time doing work in user space, 2.92% in the
kernel, and was overall 81.63% of the time idle.
-In most cases the `/proc/stat' information reflects the reality quite
+In most cases the ``/proc/stat`` information reflects the reality quite
closely, however due to the nature of how/when the kernel collects
this data sometimes it can not be trusted at all.
@@ -33,78 +34,78 @@ Example
-------
If we imagine the system with one task that periodically burns cycles
-in the following manner:
+in the following manner::
- time line between two timer interrupts
-|--------------------------------------|
- ^ ^
- |_ something begins working |
- |_ something goes to sleep
- (only to be awaken quite soon)
+ time line between two timer interrupts
+ |--------------------------------------|
+ ^ ^
+ |_ something begins working |
+ |_ something goes to sleep
+ (only to be awaken quite soon)
In the above situation the system will be 0% loaded according to the
-`/proc/stat' (since the timer interrupt will always happen when the
+``/proc/stat`` (since the timer interrupt will always happen when the
system is executing the idle handler), but in reality the load is
closer to 99%.
One can imagine many more situations where this behavior of the kernel
-will lead to quite erratic information inside `/proc/stat'.
-
-
-/* gcc -o hog smallhog.c */
-#include <time.h>
-#include <limits.h>
-#include <signal.h>
-#include <sys/time.h>
-#define HIST 10
-
-static volatile sig_atomic_t stop;
-
-static void sighandler (int signr)
-{
- (void) signr;
- stop = 1;
-}
-static unsigned long hog (unsigned long niters)
-{
- stop = 0;
- while (!stop && --niters);
- return niters;
-}
-int main (void)
-{
- int i;
- struct itimerval it = { .it_interval = { .tv_sec = 0, .tv_usec = 1 },
- .it_value = { .tv_sec = 0, .tv_usec = 1 } };
- sigset_t set;
- unsigned long v[HIST];
- double tmp = 0.0;
- unsigned long n;
- signal (SIGALRM, &sighandler);
- setitimer (ITIMER_REAL, &it, NULL);
-
- hog (ULONG_MAX);
- for (i = 0; i < HIST; ++i) v[i] = ULONG_MAX - hog (ULONG_MAX);
- for (i = 0; i < HIST; ++i) tmp += v[i];
- tmp /= HIST;
- n = tmp - (tmp / 3.0);
-
- sigemptyset (&set);
- sigaddset (&set, SIGALRM);
-
- for (;;) {
- hog (n);
- sigwait (&set, &i);
- }
- return 0;
-}
+will lead to quite erratic information inside ``/proc/stat``::
+
+
+ /* gcc -o hog smallhog.c */
+ #include <time.h>
+ #include <limits.h>
+ #include <signal.h>
+ #include <sys/time.h>
+ #define HIST 10
+
+ static volatile sig_atomic_t stop;
+
+ static void sighandler (int signr)
+ {
+ (void) signr;
+ stop = 1;
+ }
+ static unsigned long hog (unsigned long niters)
+ {
+ stop = 0;
+ while (!stop && --niters);
+ return niters;
+ }
+ int main (void)
+ {
+ int i;
+ struct itimerval it = { .it_interval = { .tv_sec = 0, .tv_usec = 1 },
+ .it_value = { .tv_sec = 0, .tv_usec = 1 } };
+ sigset_t set;
+ unsigned long v[HIST];
+ double tmp = 0.0;
+ unsigned long n;
+ signal (SIGALRM, &sighandler);
+ setitimer (ITIMER_REAL, &it, NULL);
+
+ hog (ULONG_MAX);
+ for (i = 0; i < HIST; ++i) v[i] = ULONG_MAX - hog (ULONG_MAX);
+ for (i = 0; i < HIST; ++i) tmp += v[i];
+ tmp /= HIST;
+ n = tmp - (tmp / 3.0);
+
+ sigemptyset (&set);
+ sigaddset (&set, SIGALRM);
+
+ for (;;) {
+ hog (n);
+ sigwait (&set, &i);
+ }
+ return 0;
+ }
References
----------
-http://lkml.org/lkml/2007/2/12/6
-Documentation/filesystems/proc.txt (1.8)
+- http://lkml.org/lkml/2007/2/12/6
+- Documentation/filesystems/proc.txt (1.8)
Thanks
diff --git a/Documentation/cputopology.txt b/Documentation/cputopology.txt
index 127c9d8c2174..c6e7e9196a8b 100644
--- a/Documentation/cputopology.txt
+++ b/Documentation/cputopology.txt
@@ -1,3 +1,6 @@
+===========================================
+How CPU topology info is exported via sysfs
+===========================================
Export CPU topology info via sysfs. Items (attributes) are similar
to /proc/cpuinfo output of some architectures:
@@ -75,24 +78,26 @@ CONFIG_SCHED_BOOK and CONFIG_DRAWER are currently only used on s390, where
they reflect the cpu and cache hierarchy.
For an architecture to support this feature, it must define some of
-these macros in include/asm-XXX/topology.h:
-#define topology_physical_package_id(cpu)
-#define topology_core_id(cpu)
-#define topology_book_id(cpu)
-#define topology_drawer_id(cpu)
-#define topology_sibling_cpumask(cpu)
-#define topology_core_cpumask(cpu)
-#define topology_book_cpumask(cpu)
-#define topology_drawer_cpumask(cpu)
-
-The type of **_id macros is int.
-The type of **_cpumask macros is (const) struct cpumask *. The latter
-correspond with appropriate **_siblings sysfs attributes (except for
+these macros in include/asm-XXX/topology.h::
+
+ #define topology_physical_package_id(cpu)
+ #define topology_core_id(cpu)
+ #define topology_book_id(cpu)
+ #define topology_drawer_id(cpu)
+ #define topology_sibling_cpumask(cpu)
+ #define topology_core_cpumask(cpu)
+ #define topology_book_cpumask(cpu)
+ #define topology_drawer_cpumask(cpu)
+
+The type of ``**_id macros`` is int.
+The type of ``**_cpumask macros`` is ``(const) struct cpumask *``. The latter
+correspond with appropriate ``**_siblings`` sysfs attributes (except for
topology_sibling_cpumask() which corresponds with thread_siblings).
To be consistent on all architectures, include/linux/topology.h
provides default definitions for any of the above macros that are
not defined by include/asm-XXX/topology.h:
+
1) physical_package_id: -1
2) core_id: 0
3) sibling_cpumask: just the given CPU
@@ -107,6 +112,7 @@ Additionally, CPU topology information is provided under
/sys/devices/system/cpu and includes these files. The internal
source for the output is in brackets ("[]").
+ =========== ==========================================================
kernel_max: the maximum CPU index allowed by the kernel configuration.
[NR_CPUS-1]
@@ -122,6 +128,7 @@ source for the output is in brackets ("[]").
present: CPUs that have been identified as being present in the
system. [cpu_present_mask]
+ =========== ==========================================================
The format for the above output is compatible with cpulist_parse()
[see <linux/cpumask.h>]. Some examples follow.
@@ -129,7 +136,7 @@ The format for the above output is compatible with cpulist_parse()
In this example, there are 64 CPUs in the system but cpus 32-63 exceed
the kernel max which is limited to 0..31 by the NR_CPUS config option
being 32. Note also that CPUs 2 and 4-31 are not online but could be
-brought online as they are both present and possible.
+brought online as they are both present and possible::
kernel_max: 31
offline: 2,4-31,32-63
@@ -140,7 +147,7 @@ brought online as they are both present and possible.
In this example, the NR_CPUS config option is 128, but the kernel was
started with possible_cpus=144. There are 4 CPUs in the system and cpu2
was manually taken offline (and is the only CPU that can be brought
-online.)
+online.)::
kernel_max: 127
offline: 2,4-127,128-143
diff --git a/Documentation/crc32.txt b/Documentation/crc32.txt
index a08a7dd9d625..8a6860f33b4e 100644
--- a/Documentation/crc32.txt
+++ b/Documentation/crc32.txt
@@ -1,4 +1,6 @@
-A brief CRC tutorial.
+=================================
+brief tutorial on CRC computation
+=================================
A CRC is a long-division remainder. You add the CRC to the message,
and the whole thing (message+CRC) is a multiple of the given
@@ -8,7 +10,8 @@ remainder computed on the message+CRC is 0. This latter approach
is used by a lot of hardware implementations, and is why so many
protocols put the end-of-frame flag after the CRC.
-It's actually the same long division you learned in school, except that
+It's actually the same long division you learned in school, except that:
+
- We're working in binary, so the digits are only 0 and 1, and
- When dividing polynomials, there are no carries. Rather than add and
subtract, we just xor. Thus, we tend to get a bit sloppy about
@@ -40,11 +43,12 @@ throw the quotient bit away, but subtract the appropriate multiple of
the polynomial from the remainder and we're back to where we started,
ready to process the next bit.
-A big-endian CRC written this way would be coded like:
-for (i = 0; i < input_bits; i++) {
- multiple = remainder & 0x80000000 ? CRCPOLY : 0;
- remainder = (remainder << 1 | next_input_bit()) ^ multiple;
-}
+A big-endian CRC written this way would be coded like::
+
+ for (i = 0; i < input_bits; i++) {
+ multiple = remainder & 0x80000000 ? CRCPOLY : 0;
+ remainder = (remainder << 1 | next_input_bit()) ^ multiple;
+ }
Notice how, to get at bit 32 of the shifted remainder, we look
at bit 31 of the remainder *before* shifting it.
@@ -54,25 +58,26 @@ the remainder don't actually affect any decision-making until
32 bits later. Thus, the first 32 cycles of this are pretty boring.
Also, to add the CRC to a message, we need a 32-bit-long hole for it at
the end, so we have to add 32 extra cycles shifting in zeros at the
-end of every message,
+end of every message.
These details lead to a standard trick: rearrange merging in the
next_input_bit() until the moment it's needed. Then the first 32 cycles
can be precomputed, and merging in the final 32 zero bits to make room
-for the CRC can be skipped entirely. This changes the code to:
+for the CRC can be skipped entirely. This changes the code to::
-for (i = 0; i < input_bits; i++) {
- remainder ^= next_input_bit() << 31;
- multiple = (remainder & 0x80000000) ? CRCPOLY : 0;
- remainder = (remainder << 1) ^ multiple;
-}
+ for (i = 0; i < input_bits; i++) {
+ remainder ^= next_input_bit() << 31;
+ multiple = (remainder & 0x80000000) ? CRCPOLY : 0;
+ remainder = (remainder << 1) ^ multiple;
+ }
-With this optimization, the little-endian code is particularly simple:
-for (i = 0; i < input_bits; i++) {
- remainder ^= next_input_bit();
- multiple = (remainder & 1) ? CRCPOLY : 0;
- remainder = (remainder >> 1) ^ multiple;
-}
+With this optimization, the little-endian code is particularly simple::
+
+ for (i = 0; i < input_bits; i++) {
+ remainder ^= next_input_bit();
+ multiple = (remainder & 1) ? CRCPOLY : 0;
+ remainder = (remainder >> 1) ^ multiple;
+ }
The most significant coefficient of the remainder polynomial is stored
in the least significant bit of the binary "remainder" variable.
@@ -81,23 +86,25 @@ be bit-reversed) and next_input_bit().
As long as next_input_bit is returning the bits in a sensible order, we don't
*have* to wait until the last possible moment to merge in additional bits.
-We can do it 8 bits at a time rather than 1 bit at a time:
-for (i = 0; i < input_bytes; i++) {
- remainder ^= next_input_byte() << 24;
- for (j = 0; j < 8; j++) {
- multiple = (remainder & 0x80000000) ? CRCPOLY : 0;
- remainder = (remainder << 1) ^ multiple;
+We can do it 8 bits at a time rather than 1 bit at a time::
+
+ for (i = 0; i < input_bytes; i++) {
+ remainder ^= next_input_byte() << 24;
+ for (j = 0; j < 8; j++) {
+ multiple = (remainder & 0x80000000) ? CRCPOLY : 0;
+ remainder = (remainder << 1) ^ multiple;
+ }
}
-}
-Or in little-endian:
-for (i = 0; i < input_bytes; i++) {
- remainder ^= next_input_byte();
- for (j = 0; j < 8; j++) {
- multiple = (remainder & 1) ? CRCPOLY : 0;
- remainder = (remainder >> 1) ^ multiple;
+Or in little-endian::
+
+ for (i = 0; i < input_bytes; i++) {
+ remainder ^= next_input_byte();
+ for (j = 0; j < 8; j++) {
+ multiple = (remainder & 1) ? CRCPOLY : 0;
+ remainder = (remainder >> 1) ^ multiple;
+ }
}
-}
If the input is a multiple of 32 bits, you can even XOR in a 32-bit
word at a time and increase the inner loop count to 32.
diff --git a/Documentation/crypto/api-samples.rst b/Documentation/crypto/api-samples.rst
index d021fd96a76d..2531948db89f 100644
--- a/Documentation/crypto/api-samples.rst
+++ b/Documentation/crypto/api-samples.rst
@@ -155,9 +155,9 @@ Code Example For Use of Operational State Memory With SHASH
char ctx[];
};
- static struct sdesc init_sdesc(struct crypto_shash *alg)
+ static struct sdesc *init_sdesc(struct crypto_shash *alg)
{
- struct sdesc sdesc;
+ struct sdesc *sdesc;
int size;
size = sizeof(struct shash_desc) + crypto_shash_descsize(alg);
@@ -169,15 +169,16 @@ Code Example For Use of Operational State Memory With SHASH
return sdesc;
}
- static int calc_hash(struct crypto_shashalg,
- const unsigned chardata, unsigned int datalen,
- unsigned chardigest) {
- struct sdesc sdesc;
+ static int calc_hash(struct crypto_shash *alg,
+ const unsigned char *data, unsigned int datalen,
+ unsigned char *digest)
+ {
+ struct sdesc *sdesc;
int ret;
sdesc = init_sdesc(alg);
if (IS_ERR(sdesc)) {
- pr_info("trusted_key: can't alloc %s\n", hash_alg);
+ pr_info("can't alloc sdesc\n");
return PTR_ERR(sdesc);
}
@@ -186,6 +187,23 @@ Code Example For Use of Operational State Memory With SHASH
return ret;
}
+ static int test_hash(const unsigned char *data, unsigned int datalen,
+ unsigned char *digest)
+ {
+ struct crypto_shash *alg;
+ char *hash_alg_name = "sha1-padlock-nano";
+ int ret;
+
+ alg = crypto_alloc_shash(hash_alg_name, CRYPTO_ALG_TYPE_SHASH, 0);
+ if (IS_ERR(alg)) {
+ pr_info("can't alloc alg %s\n", hash_alg_name);
+ return PTR_ERR(alg);
+ }
+ ret = calc_hash(alg, data, datalen, digest);
+ crypto_free_shash(alg);
+ return ret;
+ }
+
Code Example For Random Number Generator Usage
----------------------------------------------
@@ -195,8 +213,8 @@ Code Example For Random Number Generator Usage
static int get_random_numbers(u8 *buf, unsigned int len)
{
- struct crypto_rngrng = NULL;
- chardrbg = "drbg_nopr_sha256"; /* Hash DRBG with SHA-256, no PR */
+ struct crypto_rng *rng = NULL;
+ char *drbg = "drbg_nopr_sha256"; /* Hash DRBG with SHA-256, no PR */
int ret;
if (!buf || !len) {
@@ -207,7 +225,7 @@ Code Example For Random Number Generator Usage
rng = crypto_alloc_rng(drbg, 0, 0);
if (IS_ERR(rng)) {
pr_debug("could not allocate RNG handle for %s\n", drbg);
- return -PTR_ERR(rng);
+ return PTR_ERR(rng);
}
ret = crypto_rng_get_bytes(rng, buf, len);
diff --git a/Documentation/crypto/asymmetric-keys.txt b/Documentation/crypto/asymmetric-keys.txt
index 5ad6480e3fb9..5969bf42562a 100644
--- a/Documentation/crypto/asymmetric-keys.txt
+++ b/Documentation/crypto/asymmetric-keys.txt
@@ -10,6 +10,7 @@ Contents:
- Signature verification.
- Asymmetric key subtypes.
- Instantiation data parsers.
+ - Keyring link restrictions.
========
@@ -265,7 +266,7 @@ mandatory:
The caller passes a pointer to the following struct with all of the fields
cleared, except for data, datalen and quotalen [see
- Documentation/security/keys.txt].
+ Documentation/security/keys/core.rst].
struct key_preparsed_payload {
char *description;
@@ -318,7 +319,8 @@ KEYRING LINK RESTRICTIONS
=========================
Keyrings created from userspace using add_key can be configured to check the
-signature of the key being linked.
+signature of the key being linked. Keys without a valid signature are not
+allowed to link.
Several restriction methods are available:
@@ -327,9 +329,10 @@ Several restriction methods are available:
- Option string used with KEYCTL_RESTRICT_KEYRING:
- "builtin_trusted"
- The kernel builtin trusted keyring will be searched for the signing
- key. The ca_keys kernel parameter also affects which keys are used for
- signature verification.
+ The kernel builtin trusted keyring will be searched for the signing key.
+ If the builtin trusted keyring is not configured, all links will be
+ rejected. The ca_keys kernel parameter also affects which keys are used
+ for signature verification.
(2) Restrict using the kernel builtin and secondary trusted keyrings
@@ -337,8 +340,10 @@ Several restriction methods are available:
- "builtin_and_secondary_trusted"
The kernel builtin and secondary trusted keyrings will be searched for the
- signing key. The ca_keys kernel parameter also affects which keys are used
- for signature verification.
+ signing key. If the secondary trusted keyring is not configured, this
+ restriction will behave like the "builtin_trusted" option. The ca_keys
+ kernel parameter also affects which keys are used for signature
+ verification.
(3) Restrict using a separate key or keyring
@@ -346,7 +351,7 @@ Several restriction methods are available:
- "key_or_keyring:<key or keyring serial number>[:chain]"
Whenever a key link is requested, the link will only succeed if the key
- being linked is signed by one of the designated keys. This key may be
+ being linked is signed by one of the designated keys. This key may be
specified directly by providing a serial number for one asymmetric key, or
a group of keys may be searched for the signing key by providing the
serial number for a keyring.
@@ -354,7 +359,51 @@ Several restriction methods are available:
When the "chain" option is provided at the end of the string, the keys
within the destination keyring will also be searched for signing keys.
This allows for verification of certificate chains by adding each
- cert in order (starting closest to the root) to one keyring.
+ certificate in order (starting closest to the root) to a keyring. For
+ instance, one keyring can be populated with links to a set of root
+ certificates, with a separate, restricted keyring set up for each
+ certificate chain to be validated:
+
+ # Create and populate a keyring for root certificates
+ root_id=`keyctl add keyring root-certs "" @s`
+ keyctl padd asymmetric "" $root_id < root1.cert
+ keyctl padd asymmetric "" $root_id < root2.cert
+
+ # Create and restrict a keyring for the certificate chain
+ chain_id=`keyctl add keyring chain "" @s`
+ keyctl restrict_keyring $chain_id asymmetric key_or_keyring:$root_id:chain
+
+ # Attempt to add each certificate in the chain, starting with the
+ # certificate closest to the root.
+ keyctl padd asymmetric "" $chain_id < intermediateA.cert
+ keyctl padd asymmetric "" $chain_id < intermediateB.cert
+ keyctl padd asymmetric "" $chain_id < end-entity.cert
+
+ If the final end-entity certificate is successfully added to the "chain"
+ keyring, we can be certain that it has a valid signing chain going back to
+ one of the root certificates.
+
+ A single keyring can be used to verify a chain of signatures by
+ restricting the keyring after linking the root certificate:
+
+ # Create a keyring for the certificate chain and add the root
+ chain2_id=`keyctl add keyring chain2 "" @s`
+ keyctl padd asymmetric "" $chain2_id < root1.cert
+
+ # Restrict the keyring that already has root1.cert linked. The cert
+ # will remain linked by the keyring.
+ keyctl restrict_keyring $chain2_id asymmetric key_or_keyring:0:chain
+
+ # Attempt to add each certificate in the chain, starting with the
+ # certificate closest to the root.
+ keyctl padd asymmetric "" $chain2_id < intermediateA.cert
+ keyctl padd asymmetric "" $chain2_id < intermediateB.cert
+ keyctl padd asymmetric "" $chain2_id < end-entity.cert
+
+ If the final end-entity certificate is successfully added to the "chain2"
+ keyring, we can be certain that there is a valid signing chain going back
+ to the root certificate that was added before the keyring was restricted.
+
In all of these cases, if the signing key is found the signature of the key to
be linked will be verified using the signing key. The requested key is added
diff --git a/Documentation/crypto/conf.py b/Documentation/crypto/conf.py
new file mode 100644
index 000000000000..4335d251ddf3
--- /dev/null
+++ b/Documentation/crypto/conf.py
@@ -0,0 +1,10 @@
+# -*- coding: utf-8; mode: python -*-
+
+project = 'Linux Kernel Crypto API'
+
+tags.add("subproject")
+
+latex_documents = [
+ ('index', 'crypto-api.tex', 'Linux Kernel Crypto API manual',
+ 'The kernel development community', 'manual'),
+]
diff --git a/Documentation/crypto/userspace-if.rst b/Documentation/crypto/userspace-if.rst
index de5a72e32bc9..ff86befa61e0 100644
--- a/Documentation/crypto/userspace-if.rst
+++ b/Documentation/crypto/userspace-if.rst
@@ -327,7 +327,7 @@ boundary. Non-aligned data can be used as well, but may require more
operations of the kernel which would defeat the speed gains obtained
from the zero-copy interface.
-The system-interent limit for the size of one zero-copy operation is 16
+The system-inherent limit for the size of one zero-copy operation is 16
pages. If more data is to be sent to AF_ALG, user space must slice the
input into segments with a maximum size of 16 pages.
diff --git a/Documentation/dcdbas.txt b/Documentation/dcdbas.txt
index e1c52e2dc361..309cc57a7c1c 100644
--- a/Documentation/dcdbas.txt
+++ b/Documentation/dcdbas.txt
@@ -1,4 +1,9 @@
+===================================
+Dell Systems Management Base Driver
+===================================
+
Overview
+========
The Dell Systems Management Base Driver provides a sysfs interface for
systems management software such as Dell OpenManage to perform system
@@ -17,6 +22,7 @@ more information about the libsmbios project.
System Management Interrupt
+===========================
On some Dell systems, systems management software must access certain
management information via a system management interrupt (SMI). The SMI data
@@ -24,12 +30,12 @@ buffer must reside in 32-bit address space, and the physical address of the
buffer is required for the SMI. The driver maintains the memory required for
the SMI and provides a way for the application to generate the SMI.
The driver creates the following sysfs entries for systems management
-software to perform these system management interrupts:
+software to perform these system management interrupts::
-/sys/devices/platform/dcdbas/smi_data
-/sys/devices/platform/dcdbas/smi_data_buf_phys_addr
-/sys/devices/platform/dcdbas/smi_data_buf_size
-/sys/devices/platform/dcdbas/smi_request
+ /sys/devices/platform/dcdbas/smi_data
+ /sys/devices/platform/dcdbas/smi_data_buf_phys_addr
+ /sys/devices/platform/dcdbas/smi_data_buf_size
+ /sys/devices/platform/dcdbas/smi_request
Systems management software must perform the following steps to execute
a SMI using this driver:
@@ -43,6 +49,7 @@ a SMI using this driver:
Host Control Action
+===================
Dell OpenManage supports a host control feature that allows the administrator
to perform a power cycle or power off of the system after the OS has finished
@@ -69,12 +76,14 @@ power off host control action using this driver:
Host Control SMI Type
+=====================
The following table shows the value to write to host_control_smi_type to
perform a power cycle or power off host control action:
+=================== =====================
PowerEdge System Host Control SMI Type
----------------- ---------------------
+=================== =====================
300 HC_SMITYPE_TYPE1
1300 HC_SMITYPE_TYPE1
1400 HC_SMITYPE_TYPE2
@@ -87,5 +96,4 @@ PowerEdge System Host Control SMI Type
1655MC HC_SMITYPE_TYPE2
700 HC_SMITYPE_TYPE3
750 HC_SMITYPE_TYPE3
-
-
+=================== =====================
diff --git a/Documentation/debugging-via-ohci1394.txt b/Documentation/debugging-via-ohci1394.txt
index 9ff026d22b75..981ad4f89fd3 100644
--- a/Documentation/debugging-via-ohci1394.txt
+++ b/Documentation/debugging-via-ohci1394.txt
@@ -1,6 +1,6 @@
-
- Using physical DMA provided by OHCI-1394 FireWire controllers for debugging
- ---------------------------------------------------------------------------
+===========================================================================
+Using physical DMA provided by OHCI-1394 FireWire controllers for debugging
+===========================================================================
Introduction
------------
@@ -91,10 +91,10 @@ Step-by-step instructions for using firescope with early OHCI initialization:
1) Verify that your hardware is supported:
Load the firewire-ohci module and check your kernel logs.
- You should see a line similar to
+ You should see a line similar to::
- firewire_ohci 0000:15:00.1: added OHCI v1.0 device as card 2, 4 IR + 4 IT
- ... contexts, quirks 0x11
+ firewire_ohci 0000:15:00.1: added OHCI v1.0 device as card 2, 4 IR + 4 IT
+ ... contexts, quirks 0x11
when loading the driver. If you have no supported controller, many PCI,
CardBus and even some Express cards which are fully compliant to OHCI-1394
@@ -113,9 +113,9 @@ Step-by-step instructions for using firescope with early OHCI initialization:
stable connection and has matching connectors (there are small 4-pin and
large 6-pin FireWire ports) will do.
- If an driver is running on both machines you should see a line like
+ If an driver is running on both machines you should see a line like::
- firewire_core 0000:15:00.1: created device fw1: GUID 00061b0020105917, S400
+ firewire_core 0000:15:00.1: created device fw1: GUID 00061b0020105917, S400
on both machines in the kernel log when the cable is plugged in
and connects the two machines.
@@ -123,7 +123,7 @@ Step-by-step instructions for using firescope with early OHCI initialization:
3) Test physical DMA using firescope:
On the debug host, make sure that /dev/fw* is accessible,
- then start firescope:
+ then start firescope::
$ firescope
Port 0 (/dev/fw1) opened, 2 nodes detected
@@ -163,7 +163,7 @@ Step-by-step instructions for using firescope with early OHCI initialization:
host loaded, reboot the debugged machine, booting the kernel which has
CONFIG_PROVIDE_OHCI1394_DMA_INIT enabled, with the option ohci1394_dma=early.
- Then, on the debugging host, run firescope, for example by using -A:
+ Then, on the debugging host, run firescope, for example by using -A::
firescope -A System.map-of-debug-target-kernel
@@ -178,6 +178,7 @@ Step-by-step instructions for using firescope with early OHCI initialization:
Notes
-----
+
Documentation and specifications: http://halobates.de/firewire/
FireWire is a trademark of Apple Inc. - for more information please refer to:
diff --git a/Documentation/dell_rbu.txt b/Documentation/dell_rbu.txt
index d262e22bddec..0fdb6aa2704c 100644
--- a/Documentation/dell_rbu.txt
+++ b/Documentation/dell_rbu.txt
@@ -1,18 +1,30 @@
-Purpose:
-Demonstrate the usage of the new open sourced rbu (Remote BIOS Update) driver
+=============================================================
+Usage of the new open sourced rbu (Remote BIOS Update) driver
+=============================================================
+
+Purpose
+=======
+
+Document demonstrating the use of the Dell Remote BIOS Update driver.
for updating BIOS images on Dell servers and desktops.
-Scope:
+Scope
+=====
+
This document discusses the functionality of the rbu driver only.
It does not cover the support needed from applications to enable the BIOS to
update itself with the image downloaded in to the memory.
-Overview:
+Overview
+========
+
This driver works with Dell OpenManage or Dell Update Packages for updating
the BIOS on Dell servers (starting from servers sold since 1999), desktops
and notebooks (starting from those sold in 2005).
+
Please go to http://support.dell.com register and you can find info on
OpenManage and Dell Update packages (DUP).
+
Libsmbios can also be used to update BIOS on Dell systems go to
http://linux.dell.com/libsmbios/ for details.
@@ -22,6 +34,7 @@ of physical pages having the BIOS image. In case of packetized the app
using the driver breaks the image in to packets of fixed sizes and the driver
would place each packet in contiguous physical memory. The driver also
maintains a link list of packets for reading them back.
+
If the dell_rbu driver is unloaded all the allocated memory is freed.
The rbu driver needs to have an application (as mentioned above)which will
@@ -30,28 +43,33 @@ inform the BIOS to enable the update in the next system reboot.
The user should not unload the rbu driver after downloading the BIOS image
or updating.
-The driver load creates the following directories under the /sys file system.
-/sys/class/firmware/dell_rbu/loading
-/sys/class/firmware/dell_rbu/data
-/sys/devices/platform/dell_rbu/image_type
-/sys/devices/platform/dell_rbu/data
-/sys/devices/platform/dell_rbu/packet_size
+The driver load creates the following directories under the /sys file system::
+
+ /sys/class/firmware/dell_rbu/loading
+ /sys/class/firmware/dell_rbu/data
+ /sys/devices/platform/dell_rbu/image_type
+ /sys/devices/platform/dell_rbu/data
+ /sys/devices/platform/dell_rbu/packet_size
The driver supports two types of update mechanism; monolithic and packetized.
These update mechanism depends upon the BIOS currently running on the system.
Most of the Dell systems support a monolithic update where the BIOS image is
copied to a single contiguous block of physical memory.
+
In case of packet mechanism the single memory can be broken in smaller chunks
of contiguous memory and the BIOS image is scattered in these packets.
By default the driver uses monolithic memory for the update type. This can be
changed to packets during the driver load time by specifying the load
-parameter image_type=packet. This can also be changed later as below
-echo packet > /sys/devices/platform/dell_rbu/image_type
+parameter image_type=packet. This can also be changed later as below::
+
+ echo packet > /sys/devices/platform/dell_rbu/image_type
In packet update mode the packet size has to be given before any packets can
-be downloaded. It is done as below
-echo XXXX > /sys/devices/platform/dell_rbu/packet_size
+be downloaded. It is done as below::
+
+ echo XXXX > /sys/devices/platform/dell_rbu/packet_size
+
In the packet update mechanism, the user needs to create a new file having
packets of data arranged back to back. It can be done as follows
The user creates packets header, gets the chunk of the BIOS image and
@@ -60,41 +78,54 @@ added together should match the specified packet_size. This makes one
packet, the user needs to create more such packets out of the entire BIOS
image file and then arrange all these packets back to back in to one single
file.
+
This file is then copied to /sys/class/firmware/dell_rbu/data.
Once this file gets to the driver, the driver extracts packet_size data from
the file and spreads it across the physical memory in contiguous packet_sized
space.
+
This method makes sure that all the packets get to the driver in a single operation.
In monolithic update the user simply get the BIOS image (.hdr file) and copies
to the data file as is without any change to the BIOS image itself.
Do the steps below to download the BIOS image.
+
1) echo 1 > /sys/class/firmware/dell_rbu/loading
2) cp bios_image.hdr /sys/class/firmware/dell_rbu/data
3) echo 0 > /sys/class/firmware/dell_rbu/loading
The /sys/class/firmware/dell_rbu/ entries will remain till the following is
done.
-echo -1 > /sys/class/firmware/dell_rbu/loading
+
+::
+
+ echo -1 > /sys/class/firmware/dell_rbu/loading
+
Until this step is completed the driver cannot be unloaded.
+
Also echoing either mono, packet or init in to image_type will free up the
memory allocated by the driver.
If a user by accident executes steps 1 and 3 above without executing step 2;
it will make the /sys/class/firmware/dell_rbu/ entries disappear.
-The entries can be recreated by doing the following
-echo init > /sys/devices/platform/dell_rbu/image_type
-NOTE: echoing init in image_type does not change it original value.
+
+The entries can be recreated by doing the following::
+
+ echo init > /sys/devices/platform/dell_rbu/image_type
+
+.. note:: echoing init in image_type does not change it original value.
Also the driver provides /sys/devices/platform/dell_rbu/data readonly file to
read back the image downloaded.
-NOTE:
-This driver requires a patch for firmware_class.c which has the modified
-request_firmware_nowait function.
-Also after updating the BIOS image a user mode application needs to execute
-code which sends the BIOS update request to the BIOS. So on the next reboot
-the BIOS knows about the new image downloaded and it updates itself.
-Also don't unload the rbu driver if the image has to be updated.
+.. note::
+
+ This driver requires a patch for firmware_class.c which has the modified
+ request_firmware_nowait function.
+
+ Also after updating the BIOS image a user mode application needs to execute
+ code which sends the BIOS update request to the BIOS. So on the next reboot
+ the BIOS knows about the new image downloaded and it updates itself.
+ Also don't unload the rbu driver if the image has to be updated.
diff --git a/Documentation/dev-tools/gdb-kernel-debugging.rst b/Documentation/dev-tools/gdb-kernel-debugging.rst
index 5e93c9bc6619..19df79286f00 100644
--- a/Documentation/dev-tools/gdb-kernel-debugging.rst
+++ b/Documentation/dev-tools/gdb-kernel-debugging.rst
@@ -31,11 +31,13 @@ Setup
CONFIG_DEBUG_INFO_REDUCED off. If your architecture supports
CONFIG_FRAME_POINTER, keep it enabled.
-- Install that kernel on the guest.
+- Install that kernel on the guest, turn off KASLR if necessary by adding
+ "nokaslr" to the kernel command line.
Alternatively, QEMU allows to boot the kernel directly using -kernel,
-append, -initrd command line switches. This is generally only useful if
you do not depend on modules. See QEMU documentation for more details on
- this mode.
+ this mode. In this case, you should build the kernel with
+ CONFIG_RANDOMIZE_BASE disabled if the architecture supports KASLR.
- Enable the gdb stub of QEMU/KVM, either
diff --git a/Documentation/dev-tools/index.rst b/Documentation/dev-tools/index.rst
index 07d881147ef3..a81787cd47d7 100644
--- a/Documentation/dev-tools/index.rst
+++ b/Documentation/dev-tools/index.rst
@@ -23,6 +23,8 @@ whole; patches welcome!
kmemleak
kmemcheck
gdb-kernel-debugging
+ kgdb
+ kselftest
.. only:: subproject and html
diff --git a/Documentation/dev-tools/kgdb.rst b/Documentation/dev-tools/kgdb.rst
new file mode 100644
index 000000000000..d38be58f872a
--- /dev/null
+++ b/Documentation/dev-tools/kgdb.rst
@@ -0,0 +1,916 @@
+=================================================
+Using kgdb, kdb and the kernel debugger internals
+=================================================
+
+:Author: Jason Wessel
+
+Introduction
+============
+
+The kernel has two different debugger front ends (kdb and kgdb) which
+interface to the debug core. It is possible to use either of the
+debugger front ends and dynamically transition between them if you
+configure the kernel properly at compile and runtime.
+
+Kdb is simplistic shell-style interface which you can use on a system
+console with a keyboard or serial console. You can use it to inspect
+memory, registers, process lists, dmesg, and even set breakpoints to
+stop in a certain location. Kdb is not a source level debugger, although
+you can set breakpoints and execute some basic kernel run control. Kdb
+is mainly aimed at doing some analysis to aid in development or
+diagnosing kernel problems. You can access some symbols by name in
+kernel built-ins or in kernel modules if the code was built with
+``CONFIG_KALLSYMS``.
+
+Kgdb is intended to be used as a source level debugger for the Linux
+kernel. It is used along with gdb to debug a Linux kernel. The
+expectation is that gdb can be used to "break in" to the kernel to
+inspect memory, variables and look through call stack information
+similar to the way an application developer would use gdb to debug an
+application. It is possible to place breakpoints in kernel code and
+perform some limited execution stepping.
+
+Two machines are required for using kgdb. One of these machines is a
+development machine and the other is the target machine. The kernel to
+be debugged runs on the target machine. The development machine runs an
+instance of gdb against the vmlinux file which contains the symbols (not
+a boot image such as bzImage, zImage, uImage...). In gdb the developer
+specifies the connection parameters and connects to kgdb. The type of
+connection a developer makes with gdb depends on the availability of
+kgdb I/O modules compiled as built-ins or loadable kernel modules in the
+test machine's kernel.
+
+Compiling a kernel
+==================
+
+- In order to enable compilation of kdb, you must first enable kgdb.
+
+- The kgdb test compile options are described in the kgdb test suite
+ chapter.
+
+Kernel config options for kgdb
+------------------------------
+
+To enable ``CONFIG_KGDB`` you should look under
+:menuselection:`Kernel hacking --> Kernel debugging` and select
+:menuselection:`KGDB: kernel debugger`.
+
+While it is not a hard requirement that you have symbols in your vmlinux
+file, gdb tends not to be very useful without the symbolic data, so you
+will want to turn on ``CONFIG_DEBUG_INFO`` which is called
+:menuselection:`Compile the kernel with debug info` in the config menu.
+
+It is advised, but not required, that you turn on the
+``CONFIG_FRAME_POINTER`` kernel option which is called :menuselection:`Compile
+the kernel with frame pointers` in the config menu. This option inserts code
+to into the compiled executable which saves the frame information in
+registers or on the stack at different points which allows a debugger
+such as gdb to more accurately construct stack back traces while
+debugging the kernel.
+
+If the architecture that you are using supports the kernel option
+``CONFIG_STRICT_KERNEL_RWX``, you should consider turning it off. This
+option will prevent the use of software breakpoints because it marks
+certain regions of the kernel's memory space as read-only. If kgdb
+supports it for the architecture you are using, you can use hardware
+breakpoints if you desire to run with the ``CONFIG_STRICT_KERNEL_RWX``
+option turned on, else you need to turn off this option.
+
+Next you should choose one of more I/O drivers to interconnect debugging
+host and debugged target. Early boot debugging requires a KGDB I/O
+driver that supports early debugging and the driver must be built into
+the kernel directly. Kgdb I/O driver configuration takes place via
+kernel or module parameters which you can learn more about in the in the
+section that describes the parameter kgdboc.
+
+Here is an example set of ``.config`` symbols to enable or disable for kgdb::
+
+ # CONFIG_STRICT_KERNEL_RWX is not set
+ CONFIG_FRAME_POINTER=y
+ CONFIG_KGDB=y
+ CONFIG_KGDB_SERIAL_CONSOLE=y
+
+Kernel config options for kdb
+-----------------------------
+
+Kdb is quite a bit more complex than the simple gdbstub sitting on top
+of the kernel's debug core. Kdb must implement a shell, and also adds
+some helper functions in other parts of the kernel, responsible for
+printing out interesting data such as what you would see if you ran
+``lsmod``, or ``ps``. In order to build kdb into the kernel you follow the
+same steps as you would for kgdb.
+
+The main config option for kdb is ``CONFIG_KGDB_KDB`` which is called
+:menuselection:`KGDB_KDB: include kdb frontend for kgdb` in the config menu.
+In theory you would have already also selected an I/O driver such as the
+``CONFIG_KGDB_SERIAL_CONSOLE`` interface if you plan on using kdb on a
+serial port, when you were configuring kgdb.
+
+If you want to use a PS/2-style keyboard with kdb, you would select
+``CONFIG_KDB_KEYBOARD`` which is called :menuselection:`KGDB_KDB: keyboard as
+input device` in the config menu. The ``CONFIG_KDB_KEYBOARD`` option is not
+used for anything in the gdb interface to kgdb. The ``CONFIG_KDB_KEYBOARD``
+option only works with kdb.
+
+Here is an example set of ``.config`` symbols to enable/disable kdb::
+
+ # CONFIG_STRICT_KERNEL_RWX is not set
+ CONFIG_FRAME_POINTER=y
+ CONFIG_KGDB=y
+ CONFIG_KGDB_SERIAL_CONSOLE=y
+ CONFIG_KGDB_KDB=y
+ CONFIG_KDB_KEYBOARD=y
+
+Kernel Debugger Boot Arguments
+==============================
+
+This section describes the various runtime kernel parameters that affect
+the configuration of the kernel debugger. The following chapter covers
+using kdb and kgdb as well as providing some examples of the
+configuration parameters.
+
+Kernel parameter: kgdboc
+------------------------
+
+The kgdboc driver was originally an abbreviation meant to stand for
+"kgdb over console". Today it is the primary mechanism to configure how
+to communicate from gdb to kgdb as well as the devices you want to use
+to interact with the kdb shell.
+
+For kgdb/gdb, kgdboc is designed to work with a single serial port. It
+is intended to cover the circumstance where you want to use a serial
+console as your primary console as well as using it to perform kernel
+debugging. It is also possible to use kgdb on a serial port which is not
+designated as a system console. Kgdboc may be configured as a kernel
+built-in or a kernel loadable module. You can only make use of
+``kgdbwait`` and early debugging if you build kgdboc into the kernel as
+a built-in.
+
+Optionally you can elect to activate kms (Kernel Mode Setting)
+integration. When you use kms with kgdboc and you have a video driver
+that has atomic mode setting hooks, it is possible to enter the debugger
+on the graphics console. When the kernel execution is resumed, the
+previous graphics mode will be restored. This integration can serve as a
+useful tool to aid in diagnosing crashes or doing analysis of memory
+with kdb while allowing the full graphics console applications to run.
+
+kgdboc arguments
+~~~~~~~~~~~~~~~~
+
+Usage::
+
+ kgdboc=[kms][[,]kbd][[,]serial_device][,baud]
+
+The order listed above must be observed if you use any of the optional
+configurations together.
+
+Abbreviations:
+
+- kms = Kernel Mode Setting
+
+- kbd = Keyboard
+
+You can configure kgdboc to use the keyboard, and/or a serial device
+depending on if you are using kdb and/or kgdb, in one of the following
+scenarios. The order listed above must be observed if you use any of the
+optional configurations together. Using kms + only gdb is generally not
+a useful combination.
+
+Using loadable module or built-in
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+1. As a kernel built-in:
+
+ Use the kernel boot argument::
+
+ kgdboc=<tty-device>,[baud]
+
+2. As a kernel loadable module:
+
+ Use the command::
+
+ modprobe kgdboc kgdboc=<tty-device>,[baud]
+
+ Here are two examples of how you might format the kgdboc string. The
+ first is for an x86 target using the first serial port. The second
+ example is for the ARM Versatile AB using the second serial port.
+
+ 1. ``kgdboc=ttyS0,115200``
+
+ 2. ``kgdboc=ttyAMA1,115200``
+
+Configure kgdboc at runtime with sysfs
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+At run time you can enable or disable kgdboc by echoing a parameters
+into the sysfs. Here are two examples:
+
+1. Enable kgdboc on ttyS0::
+
+ echo ttyS0 > /sys/module/kgdboc/parameters/kgdboc
+
+2. Disable kgdboc::
+
+ echo "" > /sys/module/kgdboc/parameters/kgdboc
+
+.. note::
+
+ You do not need to specify the baud if you are configuring the
+ console on tty which is already configured or open.
+
+More examples
+^^^^^^^^^^^^^
+
+You can configure kgdboc to use the keyboard, and/or a serial device
+depending on if you are using kdb and/or kgdb, in one of the following
+scenarios.
+
+1. kdb and kgdb over only a serial port::
+
+ kgdboc=<serial_device>[,baud]
+
+ Example::
+
+ kgdboc=ttyS0,115200
+
+2. kdb and kgdb with keyboard and a serial port::
+
+ kgdboc=kbd,<serial_device>[,baud]
+
+ Example::
+
+ kgdboc=kbd,ttyS0,115200
+
+3. kdb with a keyboard::
+
+ kgdboc=kbd
+
+4. kdb with kernel mode setting::
+
+ kgdboc=kms,kbd
+
+5. kdb with kernel mode setting and kgdb over a serial port::
+
+ kgdboc=kms,kbd,ttyS0,115200
+
+.. note::
+
+ Kgdboc does not support interrupting the target via the gdb remote
+ protocol. You must manually send a :kbd:`SysRq-G` unless you have a proxy
+ that splits console output to a terminal program. A console proxy has a
+ separate TCP port for the debugger and a separate TCP port for the
+ "human" console. The proxy can take care of sending the :kbd:`SysRq-G`
+ for you.
+
+When using kgdboc with no debugger proxy, you can end up connecting the
+debugger at one of two entry points. If an exception occurs after you
+have loaded kgdboc, a message should print on the console stating it is
+waiting for the debugger. In this case you disconnect your terminal
+program and then connect the debugger in its place. If you want to
+interrupt the target system and forcibly enter a debug session you have
+to issue a :kbd:`Sysrq` sequence and then type the letter :kbd:`g`. Then you
+disconnect the terminal session and connect gdb. Your options if you
+don't like this are to hack gdb to send the :kbd:`SysRq-G` for you as well as
+on the initial connect, or to use a debugger proxy that allows an
+unmodified gdb to do the debugging.
+
+Kernel parameter: ``kgdbwait``
+------------------------------
+
+The Kernel command line option ``kgdbwait`` makes kgdb wait for a
+debugger connection during booting of a kernel. You can only use this
+option if you compiled a kgdb I/O driver into the kernel and you
+specified the I/O driver configuration as a kernel command line option.
+The kgdbwait parameter should always follow the configuration parameter
+for the kgdb I/O driver in the kernel command line else the I/O driver
+will not be configured prior to asking the kernel to use it to wait.
+
+The kernel will stop and wait as early as the I/O driver and
+architecture allows when you use this option. If you build the kgdb I/O
+driver as a loadable kernel module kgdbwait will not do anything.
+
+Kernel parameter: ``kgdbcon``
+-----------------------------
+
+The ``kgdbcon`` feature allows you to see :c:func:`printk` messages inside gdb
+while gdb is connected to the kernel. Kdb does not make use of the kgdbcon
+feature.
+
+Kgdb supports using the gdb serial protocol to send console messages to
+the debugger when the debugger is connected and running. There are two
+ways to activate this feature.
+
+1. Activate with the kernel command line option::
+
+ kgdbcon
+
+2. Use sysfs before configuring an I/O driver::
+
+ echo 1 > /sys/module/kgdb/parameters/kgdb_use_con
+
+.. note::
+
+ If you do this after you configure the kgdb I/O driver, the
+ setting will not take effect until the next point the I/O is
+ reconfigured.
+
+.. important::
+
+ You cannot use kgdboc + kgdbcon on a tty that is an
+ active system console. An example of incorrect usage is::
+
+ console=ttyS0,115200 kgdboc=ttyS0 kgdbcon
+
+It is possible to use this option with kgdboc on a tty that is not a
+system console.
+
+Run time parameter: ``kgdbreboot``
+----------------------------------
+
+The kgdbreboot feature allows you to change how the debugger deals with
+the reboot notification. You have 3 choices for the behavior. The
+default behavior is always set to 0.
+
+.. tabularcolumns:: |p{0.4cm}|p{11.5cm}|p{5.6cm}|
+
+.. flat-table::
+ :widths: 1 10 8
+
+ * - 1
+ - ``echo -1 > /sys/module/debug_core/parameters/kgdbreboot``
+ - Ignore the reboot notification entirely.
+
+ * - 2
+ - ``echo 0 > /sys/module/debug_core/parameters/kgdbreboot``
+ - Send the detach message to any attached debugger client.
+
+ * - 3
+ - ``echo 1 > /sys/module/debug_core/parameters/kgdbreboot``
+ - Enter the debugger on reboot notify.
+
+Kernel parameter: ``nokaslr``
+-----------------------------
+
+If the architecture that you are using enable KASLR by default,
+you should consider turning it off. KASLR randomizes the
+virtual address where the kernel image is mapped and confuse
+gdb which resolve kernel symbol address from symbol table
+of vmlinux.
+
+Using kdb
+=========
+
+Quick start for kdb on a serial port
+------------------------------------
+
+This is a quick example of how to use kdb.
+
+1. Configure kgdboc at boot using kernel parameters::
+
+ console=ttyS0,115200 kgdboc=ttyS0,115200 nokaslr
+
+ OR
+
+ Configure kgdboc after the kernel has booted; assuming you are using
+ a serial port console::
+
+ echo ttyS0 > /sys/module/kgdboc/parameters/kgdboc
+
+2. Enter the kernel debugger manually or by waiting for an oops or
+ fault. There are several ways you can enter the kernel debugger
+ manually; all involve using the :kbd:`SysRq-G`, which means you must have
+ enabled ``CONFIG_MAGIC_SysRq=y`` in your kernel config.
+
+ - When logged in as root or with a super user session you can run::
+
+ echo g > /proc/sysrq-trigger
+
+ - Example using minicom 2.2
+
+ Press: :kbd:`CTRL-A` :kbd:`f` :kbd:`g`
+
+ - When you have telneted to a terminal server that supports sending
+ a remote break
+
+ Press: :kbd:`CTRL-]`
+
+ Type in: ``send break``
+
+ Press: :kbd:`Enter` :kbd:`g`
+
+3. From the kdb prompt you can run the ``help`` command to see a complete
+ list of the commands that are available.
+
+ Some useful commands in kdb include:
+
+ =========== =================================================================
+ ``lsmod`` Shows where kernel modules are loaded
+ ``ps`` Displays only the active processes
+ ``ps A`` Shows all the processes
+ ``summary`` Shows kernel version info and memory usage
+ ``bt`` Get a backtrace of the current process using :c:func:`dump_stack`
+ ``dmesg`` View the kernel syslog buffer
+ ``go`` Continue the system
+ =========== =================================================================
+
+4. When you are done using kdb you need to consider rebooting the system
+ or using the ``go`` command to resuming normal kernel execution. If you
+ have paused the kernel for a lengthy period of time, applications
+ that rely on timely networking or anything to do with real wall clock
+ time could be adversely affected, so you should take this into
+ consideration when using the kernel debugger.
+
+Quick start for kdb using a keyboard connected console
+------------------------------------------------------
+
+This is a quick example of how to use kdb with a keyboard.
+
+1. Configure kgdboc at boot using kernel parameters::
+
+ kgdboc=kbd
+
+ OR
+
+ Configure kgdboc after the kernel has booted::
+
+ echo kbd > /sys/module/kgdboc/parameters/kgdboc
+
+2. Enter the kernel debugger manually or by waiting for an oops or
+ fault. There are several ways you can enter the kernel debugger
+ manually; all involve using the :kbd:`SysRq-G`, which means you must have
+ enabled ``CONFIG_MAGIC_SysRq=y`` in your kernel config.
+
+ - When logged in as root or with a super user session you can run::
+
+ echo g > /proc/sysrq-trigger
+
+ - Example using a laptop keyboard:
+
+ Press and hold down: :kbd:`Alt`
+
+ Press and hold down: :kbd:`Fn`
+
+ Press and release the key with the label: :kbd:`SysRq`
+
+ Release: :kbd:`Fn`
+
+ Press and release: :kbd:`g`
+
+ Release: :kbd:`Alt`
+
+ - Example using a PS/2 101-key keyboard
+
+ Press and hold down: :kbd:`Alt`
+
+ Press and release the key with the label: :kbd:`SysRq`
+
+ Press and release: :kbd:`g`
+
+ Release: :kbd:`Alt`
+
+3. Now type in a kdb command such as ``help``, ``dmesg``, ``bt`` or ``go`` to
+ continue kernel execution.
+
+Using kgdb / gdb
+================
+
+In order to use kgdb you must activate it by passing configuration
+information to one of the kgdb I/O drivers. If you do not pass any
+configuration information kgdb will not do anything at all. Kgdb will
+only actively hook up to the kernel trap hooks if a kgdb I/O driver is
+loaded and configured. If you unconfigure a kgdb I/O driver, kgdb will
+unregister all the kernel hook points.
+
+All kgdb I/O drivers can be reconfigured at run time, if
+``CONFIG_SYSFS`` and ``CONFIG_MODULES`` are enabled, by echo'ing a new
+config string to ``/sys/module/<driver>/parameter/<option>``. The driver
+can be unconfigured by passing an empty string. You cannot change the
+configuration while the debugger is attached. Make sure to detach the
+debugger with the ``detach`` command prior to trying to unconfigure a
+kgdb I/O driver.
+
+Connecting with gdb to a serial port
+------------------------------------
+
+1. Configure kgdboc
+
+ Configure kgdboc at boot using kernel parameters::
+
+ kgdboc=ttyS0,115200
+
+ OR
+
+ Configure kgdboc after the kernel has booted::
+
+ echo ttyS0 > /sys/module/kgdboc/parameters/kgdboc
+
+2. Stop kernel execution (break into the debugger)
+
+ In order to connect to gdb via kgdboc, the kernel must first be
+ stopped. There are several ways to stop the kernel which include
+ using kgdbwait as a boot argument, via a :kbd:`SysRq-G`, or running the
+ kernel until it takes an exception where it waits for the debugger to
+ attach.
+
+ - When logged in as root or with a super user session you can run::
+
+ echo g > /proc/sysrq-trigger
+
+ - Example using minicom 2.2
+
+ Press: :kbd:`CTRL-A` :kbd:`f` :kbd:`g`
+
+ - When you have telneted to a terminal server that supports sending
+ a remote break
+
+ Press: :kbd:`CTRL-]`
+
+ Type in: ``send break``
+
+ Press: :kbd:`Enter` :kbd:`g`
+
+3. Connect from gdb
+
+ Example (using a directly connected port)::
+
+ % gdb ./vmlinux
+ (gdb) set remotebaud 115200
+ (gdb) target remote /dev/ttyS0
+
+
+ Example (kgdb to a terminal server on TCP port 2012)::
+
+ % gdb ./vmlinux
+ (gdb) target remote 192.168.2.2:2012
+
+
+ Once connected, you can debug a kernel the way you would debug an
+ application program.
+
+ If you are having problems connecting or something is going seriously
+ wrong while debugging, it will most often be the case that you want
+ to enable gdb to be verbose about its target communications. You do
+ this prior to issuing the ``target remote`` command by typing in::
+
+ set debug remote 1
+
+Remember if you continue in gdb, and need to "break in" again, you need
+to issue an other :kbd:`SysRq-G`. It is easy to create a simple entry point by
+putting a breakpoint at ``sys_sync`` and then you can run ``sync`` from a
+shell or script to break into the debugger.
+
+kgdb and kdb interoperability
+=============================
+
+It is possible to transition between kdb and kgdb dynamically. The debug
+core will remember which you used the last time and automatically start
+in the same mode.
+
+Switching between kdb and kgdb
+------------------------------
+
+Switching from kgdb to kdb
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+There are two ways to switch from kgdb to kdb: you can use gdb to issue
+a maintenance packet, or you can blindly type the command ``$3#33``.
+Whenever the kernel debugger stops in kgdb mode it will print the
+message ``KGDB or $3#33 for KDB``. It is important to note that you have
+to type the sequence correctly in one pass. You cannot type a backspace
+or delete because kgdb will interpret that as part of the debug stream.
+
+1. Change from kgdb to kdb by blindly typing::
+
+ $3#33
+
+2. Change from kgdb to kdb with gdb::
+
+ maintenance packet 3
+
+ .. note::
+
+ Now you must kill gdb. Typically you press :kbd:`CTRL-Z` and issue
+ the command::
+
+ kill -9 %
+
+Change from kdb to kgdb
+~~~~~~~~~~~~~~~~~~~~~~~
+
+There are two ways you can change from kdb to kgdb. You can manually
+enter kgdb mode by issuing the kgdb command from the kdb shell prompt,
+or you can connect gdb while the kdb shell prompt is active. The kdb
+shell looks for the typical first commands that gdb would issue with the
+gdb remote protocol and if it sees one of those commands it
+automatically changes into kgdb mode.
+
+1. From kdb issue the command::
+
+ kgdb
+
+ Now disconnect your terminal program and connect gdb in its place
+
+2. At the kdb prompt, disconnect the terminal program and connect gdb in
+ its place.
+
+Running kdb commands from gdb
+-----------------------------
+
+It is possible to run a limited set of kdb commands from gdb, using the
+gdb monitor command. You don't want to execute any of the run control or
+breakpoint operations, because it can disrupt the state of the kernel
+debugger. You should be using gdb for breakpoints and run control
+operations if you have gdb connected. The more useful commands to run
+are things like lsmod, dmesg, ps or possibly some of the memory
+information commands. To see all the kdb commands you can run
+``monitor help``.
+
+Example::
+
+ (gdb) monitor ps
+ 1 idle process (state I) and
+ 27 sleeping system daemon (state M) processes suppressed,
+ use 'ps A' to see all.
+ Task Addr Pid Parent [*] cpu State Thread Command
+
+ 0xc78291d0 1 0 0 0 S 0xc7829404 init
+ 0xc7954150 942 1 0 0 S 0xc7954384 dropbear
+ 0xc78789c0 944 1 0 0 S 0xc7878bf4 sh
+ (gdb)
+
+kgdb Test Suite
+===============
+
+When kgdb is enabled in the kernel config you can also elect to enable
+the config parameter ``KGDB_TESTS``. Turning this on will enable a special
+kgdb I/O module which is designed to test the kgdb internal functions.
+
+The kgdb tests are mainly intended for developers to test the kgdb
+internals as well as a tool for developing a new kgdb architecture
+specific implementation. These tests are not really for end users of the
+Linux kernel. The primary source of documentation would be to look in
+the ``drivers/misc/kgdbts.c`` file.
+
+The kgdb test suite can also be configured at compile time to run the
+core set of tests by setting the kernel config parameter
+``KGDB_TESTS_ON_BOOT``. This particular option is aimed at automated
+regression testing and does not require modifying the kernel boot config
+arguments. If this is turned on, the kgdb test suite can be disabled by
+specifying ``kgdbts=`` as a kernel boot argument.
+
+Kernel Debugger Internals
+=========================
+
+Architecture Specifics
+----------------------
+
+The kernel debugger is organized into a number of components:
+
+1. The debug core
+
+ The debug core is found in ``kernel/debugger/debug_core.c``. It
+ contains:
+
+ - A generic OS exception handler which includes sync'ing the
+ processors into a stopped state on an multi-CPU system.
+
+ - The API to talk to the kgdb I/O drivers
+
+ - The API to make calls to the arch-specific kgdb implementation
+
+ - The logic to perform safe memory reads and writes to memory while
+ using the debugger
+
+ - A full implementation for software breakpoints unless overridden
+ by the arch
+
+ - The API to invoke either the kdb or kgdb frontend to the debug
+ core.
+
+ - The structures and callback API for atomic kernel mode setting.
+
+ .. note:: kgdboc is where the kms callbacks are invoked.
+
+2. kgdb arch-specific implementation
+
+ This implementation is generally found in ``arch/*/kernel/kgdb.c``. As
+ an example, ``arch/x86/kernel/kgdb.c`` contains the specifics to
+ implement HW breakpoint as well as the initialization to dynamically
+ register and unregister for the trap handlers on this architecture.
+ The arch-specific portion implements:
+
+ - contains an arch-specific trap catcher which invokes
+ :c:func:`kgdb_handle_exception` to start kgdb about doing its work
+
+ - translation to and from gdb specific packet format to :c:type:`pt_regs`
+
+ - Registration and unregistration of architecture specific trap
+ hooks
+
+ - Any special exception handling and cleanup
+
+ - NMI exception handling and cleanup
+
+ - (optional) HW breakpoints
+
+3. gdbstub frontend (aka kgdb)
+
+ The gdbstub is located in ``kernel/debug/gdbstub.c``. It contains:
+
+ - All the logic to implement the gdb serial protocol
+
+4. kdb frontend
+
+ The kdb debugger shell is broken down into a number of components.
+ The kdb core is located in kernel/debug/kdb. There are a number of
+ helper functions in some of the other kernel components to make it
+ possible for kdb to examine and report information about the kernel
+ without taking locks that could cause a kernel deadlock. The kdb core
+ contains implements the following functionality.
+
+ - A simple shell
+
+ - The kdb core command set
+
+ - A registration API to register additional kdb shell commands.
+
+ - A good example of a self-contained kdb module is the ``ftdump``
+ command for dumping the ftrace buffer. See:
+ ``kernel/trace/trace_kdb.c``
+
+ - For an example of how to dynamically register a new kdb command
+ you can build the kdb_hello.ko kernel module from
+ ``samples/kdb/kdb_hello.c``. To build this example you can set
+ ``CONFIG_SAMPLES=y`` and ``CONFIG_SAMPLE_KDB=m`` in your kernel
+ config. Later run ``modprobe kdb_hello`` and the next time you
+ enter the kdb shell, you can run the ``hello`` command.
+
+ - The implementation for :c:func:`kdb_printf` which emits messages directly
+ to I/O drivers, bypassing the kernel log.
+
+ - SW / HW breakpoint management for the kdb shell
+
+5. kgdb I/O driver
+
+ Each kgdb I/O driver has to provide an implementation for the
+ following:
+
+ - configuration via built-in or module
+
+ - dynamic configuration and kgdb hook registration calls
+
+ - read and write character interface
+
+ - A cleanup handler for unconfiguring from the kgdb core
+
+ - (optional) Early debug methodology
+
+ Any given kgdb I/O driver has to operate very closely with the
+ hardware and must do it in such a way that does not enable interrupts
+ or change other parts of the system context without completely
+ restoring them. The kgdb core will repeatedly "poll" a kgdb I/O
+ driver for characters when it needs input. The I/O driver is expected
+ to return immediately if there is no data available. Doing so allows
+ for the future possibility to touch watchdog hardware in such a way
+ as to have a target system not reset when these are enabled.
+
+If you are intent on adding kgdb architecture specific support for a new
+architecture, the architecture should define ``HAVE_ARCH_KGDB`` in the
+architecture specific Kconfig file. This will enable kgdb for the
+architecture, and at that point you must create an architecture specific
+kgdb implementation.
+
+There are a few flags which must be set on every architecture in their
+``asm/kgdb.h`` file. These are:
+
+- ``NUMREGBYTES``:
+ The size in bytes of all of the registers, so that we
+ can ensure they will all fit into a packet.
+
+- ``BUFMAX``:
+ The size in bytes of the buffer GDB will read into. This must
+ be larger than NUMREGBYTES.
+
+- ``CACHE_FLUSH_IS_SAFE``:
+ Set to 1 if it is always safe to call
+ flush_cache_range or flush_icache_range. On some architectures,
+ these functions may not be safe to call on SMP since we keep other
+ CPUs in a holding pattern.
+
+There are also the following functions for the common backend, found in
+``kernel/kgdb.c``, that must be supplied by the architecture-specific
+backend unless marked as (optional), in which case a default function
+maybe used if the architecture does not need to provide a specific
+implementation.
+
+.. kernel-doc:: include/linux/kgdb.h
+ :internal:
+
+kgdboc internals
+----------------
+
+kgdboc and uarts
+~~~~~~~~~~~~~~~~
+
+The kgdboc driver is actually a very thin driver that relies on the
+underlying low level to the hardware driver having "polling hooks" to
+which the tty driver is attached. In the initial implementation of
+kgdboc the serial_core was changed to expose a low level UART hook for
+doing polled mode reading and writing of a single character while in an
+atomic context. When kgdb makes an I/O request to the debugger, kgdboc
+invokes a callback in the serial core which in turn uses the callback in
+the UART driver.
+
+When using kgdboc with a UART, the UART driver must implement two
+callbacks in the :c:type:`struct uart_ops <uart_ops>`.
+Example from ``drivers/8250.c``::
+
+
+ #ifdef CONFIG_CONSOLE_POLL
+ .poll_get_char = serial8250_get_poll_char,
+ .poll_put_char = serial8250_put_poll_char,
+ #endif
+
+
+Any implementation specifics around creating a polling driver use the
+``#ifdef CONFIG_CONSOLE_POLL``, as shown above. Keep in mind that
+polling hooks have to be implemented in such a way that they can be
+called from an atomic context and have to restore the state of the UART
+chip on return such that the system can return to normal when the
+debugger detaches. You need to be very careful with any kind of lock you
+consider, because failing here is most likely going to mean pressing the
+reset button.
+
+kgdboc and keyboards
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+The kgdboc driver contains logic to configure communications with an
+attached keyboard. The keyboard infrastructure is only compiled into the
+kernel when ``CONFIG_KDB_KEYBOARD=y`` is set in the kernel configuration.
+
+The core polled keyboard driver driver for PS/2 type keyboards is in
+``drivers/char/kdb_keyboard.c``. This driver is hooked into the debug core
+when kgdboc populates the callback in the array called
+:c:type:`kdb_poll_funcs[]`. The :c:func:`kdb_get_kbd_char` is the top-level
+function which polls hardware for single character input.
+
+kgdboc and kms
+~~~~~~~~~~~~~~~~~~
+
+The kgdboc driver contains logic to request the graphics display to
+switch to a text context when you are using ``kgdboc=kms,kbd``, provided
+that you have a video driver which has a frame buffer console and atomic
+kernel mode setting support.
+
+Every time the kernel debugger is entered it calls
+:c:func:`kgdboc_pre_exp_handler` which in turn calls :c:func:`con_debug_enter`
+in the virtual console layer. On resuming kernel execution, the kernel
+debugger calls :c:func:`kgdboc_post_exp_handler` which in turn calls
+:c:func:`con_debug_leave`.
+
+Any video driver that wants to be compatible with the kernel debugger
+and the atomic kms callbacks must implement the ``mode_set_base_atomic``,
+``fb_debug_enter`` and ``fb_debug_leave operations``. For the
+``fb_debug_enter`` and ``fb_debug_leave`` the option exists to use the
+generic drm fb helper functions or implement something custom for the
+hardware. The following example shows the initialization of the
+.mode_set_base_atomic operation in
+drivers/gpu/drm/i915/intel_display.c::
+
+
+ static const struct drm_crtc_helper_funcs intel_helper_funcs = {
+ [...]
+ .mode_set_base_atomic = intel_pipe_set_base_atomic,
+ [...]
+ };
+
+
+Here is an example of how the i915 driver initializes the
+fb_debug_enter and fb_debug_leave functions to use the generic drm
+helpers in ``drivers/gpu/drm/i915/intel_fb.c``::
+
+
+ static struct fb_ops intelfb_ops = {
+ [...]
+ .fb_debug_enter = drm_fb_helper_debug_enter,
+ .fb_debug_leave = drm_fb_helper_debug_leave,
+ [...]
+ };
+
+
+Credits
+=======
+
+The following people have contributed to this document:
+
+1. Amit Kale <amitkale@linsyssoft.com>
+
+2. Tom Rini <trini@kernel.crashing.org>
+
+In March 2008 this document was completely rewritten by:
+
+- Jason Wessel <jason.wessel@windriver.com>
+
+In Jan 2010 this document was updated to include kdb.
+
+- Jason Wessel <jason.wessel@windriver.com>
diff --git a/Documentation/dev-tools/kmemleak.rst b/Documentation/dev-tools/kmemleak.rst
index b2391b829169..cb8862659178 100644
--- a/Documentation/dev-tools/kmemleak.rst
+++ b/Documentation/dev-tools/kmemleak.rst
@@ -150,6 +150,7 @@ See the include/linux/kmemleak.h header for the functions prototype.
- ``kmemleak_init`` - initialize kmemleak
- ``kmemleak_alloc`` - notify of a memory block allocation
- ``kmemleak_alloc_percpu`` - notify of a percpu memory block allocation
+- ``kmemleak_vmalloc`` - notify of a vmalloc() memory allocation
- ``kmemleak_free`` - notify of a memory block freeing
- ``kmemleak_free_part`` - notify of a partial memory block freeing
- ``kmemleak_free_percpu`` - notify of a percpu memory block freeing
diff --git a/Documentation/dev-tools/kselftest.rst b/Documentation/dev-tools/kselftest.rst
new file mode 100644
index 000000000000..ebd03d11d2c2
--- /dev/null
+++ b/Documentation/dev-tools/kselftest.rst
@@ -0,0 +1,155 @@
+======================
+Linux Kernel Selftests
+======================
+
+The kernel contains a set of "self tests" under the tools/testing/selftests/
+directory. These are intended to be small tests to exercise individual code
+paths in the kernel. Tests are intended to be run after building, installing
+and booting a kernel.
+
+On some systems, hot-plug tests could hang forever waiting for cpu and
+memory to be ready to be offlined. A special hot-plug target is created
+to run full range of hot-plug tests. In default mode, hot-plug tests run
+in safe mode with a limited scope. In limited mode, cpu-hotplug test is
+run on a single cpu as opposed to all hotplug capable cpus, and memory
+hotplug test is run on 2% of hotplug capable memory instead of 10%.
+
+Running the selftests (hotplug tests are run in limited mode)
+=============================================================
+
+To build the tests::
+
+ $ make -C tools/testing/selftests
+
+To run the tests::
+
+ $ make -C tools/testing/selftests run_tests
+
+To build and run the tests with a single command, use::
+
+ $ make kselftest
+
+Note that some tests will require root privileges.
+
+
+Running a subset of selftests
+=============================
+
+You can use the "TARGETS" variable on the make command line to specify
+single test to run, or a list of tests to run.
+
+To run only tests targeted for a single subsystem::
+
+ $ make -C tools/testing/selftests TARGETS=ptrace run_tests
+
+You can specify multiple tests to build and run::
+
+ $ make TARGETS="size timers" kselftest
+
+See the top-level tools/testing/selftests/Makefile for the list of all
+possible targets.
+
+
+Running the full range hotplug selftests
+========================================
+
+To build the hotplug tests::
+
+ $ make -C tools/testing/selftests hotplug
+
+To run the hotplug tests::
+
+ $ make -C tools/testing/selftests run_hotplug
+
+Note that some tests will require root privileges.
+
+
+Install selftests
+=================
+
+You can use kselftest_install.sh tool installs selftests in default
+location which is tools/testing/selftests/kselftest or a user specified
+location.
+
+To install selftests in default location::
+
+ $ cd tools/testing/selftests
+ $ ./kselftest_install.sh
+
+To install selftests in a user specified location::
+
+ $ cd tools/testing/selftests
+ $ ./kselftest_install.sh install_dir
+
+Running installed selftests
+===========================
+
+Kselftest install as well as the Kselftest tarball provide a script
+named "run_kselftest.sh" to run the tests.
+
+You can simply do the following to run the installed Kselftests. Please
+note some tests will require root privileges::
+
+ $ cd kselftest
+ $ ./run_kselftest.sh
+
+Contributing new tests
+======================
+
+In general, the rules for selftests are
+
+ * Do as much as you can if you're not root;
+
+ * Don't take too long;
+
+ * Don't break the build on any architecture, and
+
+ * Don't cause the top-level "make run_tests" to fail if your feature is
+ unconfigured.
+
+Contributing new tests (details)
+================================
+
+ * Use TEST_GEN_XXX if such binaries or files are generated during
+ compiling.
+
+ TEST_PROGS, TEST_GEN_PROGS mean it is the excutable tested by
+ default.
+
+ TEST_PROGS_EXTENDED, TEST_GEN_PROGS_EXTENDED mean it is the
+ executable which is not tested by default.
+ TEST_FILES, TEST_GEN_FILES mean it is the file which is used by
+ test.
+
+Test Harness
+============
+
+The kselftest_harness.h file contains useful helpers to build tests. The tests
+from tools/testing/selftests/seccomp/seccomp_bpf.c can be used as example.
+
+Example
+-------
+
+.. kernel-doc:: tools/testing/selftests/kselftest_harness.h
+ :doc: example
+
+
+Helpers
+-------
+
+.. kernel-doc:: tools/testing/selftests/kselftest_harness.h
+ :functions: TH_LOG TEST TEST_SIGNAL FIXTURE FIXTURE_DATA FIXTURE_SETUP
+ FIXTURE_TEARDOWN TEST_F TEST_HARNESS_MAIN
+
+Operators
+---------
+
+.. kernel-doc:: tools/testing/selftests/kselftest_harness.h
+ :doc: operators
+
+.. kernel-doc:: tools/testing/selftests/kselftest_harness.h
+ :functions: ASSERT_EQ ASSERT_NE ASSERT_LT ASSERT_LE ASSERT_GT ASSERT_GE
+ ASSERT_NULL ASSERT_TRUE ASSERT_NULL ASSERT_TRUE ASSERT_FALSE
+ ASSERT_STREQ ASSERT_STRNE EXPECT_EQ EXPECT_NE EXPECT_LT
+ EXPECT_LE EXPECT_GT EXPECT_GE EXPECT_NULL EXPECT_TRUE
+ EXPECT_FALSE EXPECT_STREQ EXPECT_STRNE
diff --git a/Documentation/dev-tools/sparse.rst b/Documentation/dev-tools/sparse.rst
index ffdcc97f6f5a..78aa00a604a0 100644
--- a/Documentation/dev-tools/sparse.rst
+++ b/Documentation/dev-tools/sparse.rst
@@ -103,9 +103,3 @@ have already built it.
The optional make variable CF can be used to pass arguments to sparse. The
build system passes -Wbitwise to sparse automatically.
-
-Checking RCU annotations
-~~~~~~~~~~~~~~~~~~~~~~~~
-
-RCU annotations are not checked by default. To enable RCU annotation
-checks, include -DCONFIG_SPARSE_RCU_POINTER in your CF flags.
diff --git a/Documentation/device-mapper/dm-raid.txt b/Documentation/device-mapper/dm-raid.txt
index 7e06e65586d4..32df07e29f68 100644
--- a/Documentation/device-mapper/dm-raid.txt
+++ b/Documentation/device-mapper/dm-raid.txt
@@ -343,3 +343,5 @@ Version History
1.11.0 Fix table line argument order
(wrong raid10_copies/raid10_format sequence)
1.11.1 Add raid4/5/6 journal write-back support via journal_mode option
+1.12.1 fix for MD deadlock between mddev_suspend() and md_write_start() available
+1.13.0 Fix dev_health status at end of "recover" (was 'a', now 'A')
diff --git a/Documentation/device-mapper/dm-zoned.txt b/Documentation/device-mapper/dm-zoned.txt
new file mode 100644
index 000000000000..736fcc78d193
--- /dev/null
+++ b/Documentation/device-mapper/dm-zoned.txt
@@ -0,0 +1,144 @@
+dm-zoned
+========
+
+The dm-zoned device mapper target exposes a zoned block device (ZBC and
+ZAC compliant devices) as a regular block device without any write
+pattern constraints. In effect, it implements a drive-managed zoned
+block device which hides from the user (a file system or an application
+doing raw block device accesses) the sequential write constraints of
+host-managed zoned block devices and can mitigate the potential
+device-side performance degradation due to excessive random writes on
+host-aware zoned block devices.
+
+For a more detailed description of the zoned block device models and
+their constraints see (for SCSI devices):
+
+http://www.t10.org/drafts.htm#ZBC_Family
+
+and (for ATA devices):
+
+http://www.t13.org/Documents/UploadedDocuments/docs2015/di537r05-Zoned_Device_ATA_Command_Set_ZAC.pdf
+
+The dm-zoned implementation is simple and minimizes system overhead (CPU
+and memory usage as well as storage capacity loss). For a 10TB
+host-managed disk with 256 MB zones, dm-zoned memory usage per disk
+instance is at most 4.5 MB and as little as 5 zones will be used
+internally for storing metadata and performaing reclaim operations.
+
+dm-zoned target devices are formatted and checked using the dmzadm
+utility available at:
+
+https://github.com/hgst/dm-zoned-tools
+
+Algorithm
+=========
+
+dm-zoned implements an on-disk buffering scheme to handle non-sequential
+write accesses to the sequential zones of a zoned block device.
+Conventional zones are used for caching as well as for storing internal
+metadata.
+
+The zones of the device are separated into 2 types:
+
+1) Metadata zones: these are conventional zones used to store metadata.
+Metadata zones are not reported as useable capacity to the user.
+
+2) Data zones: all remaining zones, the vast majority of which will be
+sequential zones used exclusively to store user data. The conventional
+zones of the device may be used also for buffering user random writes.
+Data in these zones may be directly mapped to the conventional zone, but
+later moved to a sequential zone so that the conventional zone can be
+reused for buffering incoming random writes.
+
+dm-zoned exposes a logical device with a sector size of 4096 bytes,
+irrespective of the physical sector size of the backend zoned block
+device being used. This allows reducing the amount of metadata needed to
+manage valid blocks (blocks written).
+
+The on-disk metadata format is as follows:
+
+1) The first block of the first conventional zone found contains the
+super block which describes the on disk amount and position of metadata
+blocks.
+
+2) Following the super block, a set of blocks is used to describe the
+mapping of the logical device blocks. The mapping is done per chunk of
+blocks, with the chunk size equal to the zoned block device size. The
+mapping table is indexed by chunk number and each mapping entry
+indicates the zone number of the device storing the chunk of data. Each
+mapping entry may also indicate if the zone number of a conventional
+zone used to buffer random modification to the data zone.
+
+3) A set of blocks used to store bitmaps indicating the validity of
+blocks in the data zones follows the mapping table. A valid block is
+defined as a block that was written and not discarded. For a buffered
+data chunk, a block is always valid only in the data zone mapping the
+chunk or in the buffer zone of the chunk.
+
+For a logical chunk mapped to a conventional zone, all write operations
+are processed by directly writing to the zone. If the mapping zone is a
+sequential zone, the write operation is processed directly only if the
+write offset within the logical chunk is equal to the write pointer
+offset within of the sequential data zone (i.e. the write operation is
+aligned on the zone write pointer). Otherwise, write operations are
+processed indirectly using a buffer zone. In that case, an unused
+conventional zone is allocated and assigned to the chunk being
+accessed. Writing a block to the buffer zone of a chunk will
+automatically invalidate the same block in the sequential zone mapping
+the chunk. If all blocks of the sequential zone become invalid, the zone
+is freed and the chunk buffer zone becomes the primary zone mapping the
+chunk, resulting in native random write performance similar to a regular
+block device.
+
+Read operations are processed according to the block validity
+information provided by the bitmaps. Valid blocks are read either from
+the sequential zone mapping a chunk, or if the chunk is buffered, from
+the buffer zone assigned. If the accessed chunk has no mapping, or the
+accessed blocks are invalid, the read buffer is zeroed and the read
+operation terminated.
+
+After some time, the limited number of convnetional zones available may
+be exhausted (all used to map chunks or buffer sequential zones) and
+unaligned writes to unbuffered chunks become impossible. To avoid this
+situation, a reclaim process regularly scans used conventional zones and
+tries to reclaim the least recently used zones by copying the valid
+blocks of the buffer zone to a free sequential zone. Once the copy
+completes, the chunk mapping is updated to point to the sequential zone
+and the buffer zone freed for reuse.
+
+Metadata Protection
+===================
+
+To protect metadata against corruption in case of sudden power loss or
+system crash, 2 sets of metadata zones are used. One set, the primary
+set, is used as the main metadata region, while the secondary set is
+used as a staging area. Modified metadata is first written to the
+secondary set and validated by updating the super block in the secondary
+set, a generation counter is used to indicate that this set contains the
+newest metadata. Once this operation completes, in place of metadata
+block updates can be done in the primary metadata set. This ensures that
+one of the set is always consistent (all modifications committed or none
+at all). Flush operations are used as a commit point. Upon reception of
+a flush request, metadata modification activity is temporarily blocked
+(for both incoming BIO processing and reclaim process) and all dirty
+metadata blocks are staged and updated. Normal operation is then
+resumed. Flushing metadata thus only temporarily delays write and
+discard requests. Read requests can be processed concurrently while
+metadata flush is being executed.
+
+Usage
+=====
+
+A zoned block device must first be formatted using the dmzadm tool. This
+will analyze the device zone configuration, determine where to place the
+metadata sets on the device and initialize the metadata sets.
+
+Ex:
+
+dmzadm --format /dev/sdxx
+
+For a formatted device, the target can be created normally with the
+dmsetup utility. The only parameter that dm-zoned requires is the
+underlying zoned block device name. Ex:
+
+echo "0 `blockdev --getsize ${dev}` zoned ${dev}" | dmsetup create dmz-`basename ${dev}`
diff --git a/Documentation/devicetree/bindings/arc/hsdk.txt b/Documentation/devicetree/bindings/arc/hsdk.txt
new file mode 100644
index 000000000000..be50654bbf61
--- /dev/null
+++ b/Documentation/devicetree/bindings/arc/hsdk.txt
@@ -0,0 +1,7 @@
+Synopsys DesignWare ARC HS Development Kit Device Tree Bindings
+---------------------------------------------------------------------------
+
+ARC HSDK Board with quad-core ARC HS38x4 in silicon.
+
+Required root node properties:
+ - compatible = "snps,hsdk";
diff --git a/Documentation/devicetree/bindings/arm/actions.txt b/Documentation/devicetree/bindings/arm/actions.txt
new file mode 100644
index 000000000000..3bc7ea575564
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/actions.txt
@@ -0,0 +1,39 @@
+Actions Semi platforms device tree bindings
+-------------------------------------------
+
+
+S500 SoC
+========
+
+Required root node properties:
+
+ - compatible : must contain "actions,s500"
+
+
+Modules:
+
+Root node property compatible must contain, depending on module:
+
+ - LeMaker Guitar: "lemaker,guitar"
+
+
+Boards:
+
+Root node property compatible must contain, depending on board:
+
+ - LeMaker Guitar Base Board rev. B: "lemaker,guitar-bb-rev-b", "lemaker,guitar"
+
+
+S900 SoC
+========
+
+Required root node properties:
+
+- compatible : must contain "actions,s900"
+
+
+Boards:
+
+Root node property compatible must contain, depending on board:
+
+ - uCRobotics Bubblegum-96: "ucrobotics,bubblegum-96"
diff --git a/Documentation/devicetree/bindings/arm/amlogic.txt b/Documentation/devicetree/bindings/arm/amlogic.txt
index bfd5b558477d..4e4bc0bae597 100644
--- a/Documentation/devicetree/bindings/arm/amlogic.txt
+++ b/Documentation/devicetree/bindings/arm/amlogic.txt
@@ -1,6 +1,18 @@
Amlogic MesonX device tree bindings
-------------------------------------------
+Work in progress statement:
+
+Device tree files and bindings applying to Amlogic SoCs and boards are
+considered "unstable". Any Amlogic device tree binding may change at
+any time. Be sure to use a device tree binary and a kernel image
+generated from the same source tree.
+
+Please refer to Documentation/devicetree/bindings/ABI.txt for a definition of a
+stable binding/ABI.
+
+---------------------------------------------------------------
+
Boards with the Amlogic Meson6 SoC shall have the following properties:
Required root node property:
compatible: "amlogic,meson6"
@@ -29,26 +41,64 @@ Boards with the Amlogic Meson GXM S912 SoC shall have the following properties:
Required root node property:
compatible: "amlogic,s912", "amlogic,meson-gxm";
-Board compatible values:
+Board compatible values (alphabetically, grouped by SoC):
+
- "geniatech,atv1200" (Meson6)
+
- "minix,neo-x8" (Meson8)
- - "tronfy,mxq" (Meson8b)
+
- "hardkernel,odroid-c1" (Meson8b)
+ - "tronfy,mxq" (Meson8b)
+
+ - "amlogic,p200" (Meson gxbb)
+ - "amlogic,p201" (Meson gxbb)
+ - "friendlyarm,nanopi-k2" (Meson gxbb)
+ - "hardkernel,odroid-c2" (Meson gxbb)
+ - "nexbox,a95x" (Meson gxbb or Meson gxl s905x)
- "tronsmart,vega-s95-pro", "tronsmart,vega-s95" (Meson gxbb)
- "tronsmart,vega-s95-meta", "tronsmart,vega-s95" (Meson gxbb)
- "tronsmart,vega-s95-telos", "tronsmart,vega-s95" (Meson gxbb)
- - "hardkernel,odroid-c2" (Meson gxbb)
- - "amlogic,p200" (Meson gxbb)
- - "amlogic,p201" (Meson gxbb)
- "wetek,hub" (Meson gxbb)
- "wetek,play2" (Meson gxbb)
+
- "amlogic,p212" (Meson gxl s905x)
+ - "hwacom,amazetv" (Meson gxl s905x)
- "khadas,vim" (Meson gxl s905x)
+ - "libretech,cc" (Meson gxl s905x)
- "amlogic,p230" (Meson gxl s905d)
- "amlogic,p231" (Meson gxl s905d)
- - "hwacom,amazetv" (Meson gxl s905x)
+
- "amlogic,q200" (Meson gxm s912)
- "amlogic,q201" (Meson gxm s912)
- - "nexbox,a95x" (Meson gxbb or Meson gxl s905x)
+ - "kingnovel,r-box-pro" (Meson gxm S912)
- "nexbox,a1" (Meson gxm s912)
+
+Amlogic Meson Firmware registers Interface
+------------------------------------------
+
+The Meson SoCs have a register bank with status and data shared with the
+secure firmware.
+
+Required properties:
+ - compatible: For Meson GX SoCs, must be "amlogic,meson-gx-ao-secure", "syscon"
+
+Properties should indentify components of this register interface :
+
+Meson GX SoC Information
+------------------------
+A firmware register encodes the SoC type, package and revision information on
+the Meson GX SoCs.
+If present, the following property should be added :
+
+Optional properties:
+ - amlogic,has-chip-id: If present, the interface gives the current SoC version.
+
+Example
+-------
+
+ao-secure@140 {
+ compatible = "amlogic,meson-gx-ao-secure", "syscon";
+ reg = <0x0 0x140 0x0 0x140>;
+ amlogic,has-chip-id;
+};
diff --git a/Documentation/devicetree/bindings/arm/arch_timer.txt b/Documentation/devicetree/bindings/arm/arch_timer.txt
index e926aea1147d..68301b77e854 100644
--- a/Documentation/devicetree/bindings/arm/arch_timer.txt
+++ b/Documentation/devicetree/bindings/arm/arch_timer.txt
@@ -108,6 +108,5 @@ Example:
frame-number = <1>
interrupts = <0 15 0x8>;
reg = <0xf0003000 0x1000>;
- status = "disabled";
};
};
diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.txt b/Documentation/devicetree/bindings/arm/atmel-at91.txt
index 799af90dd75b..91cb8e4f2a4f 100644
--- a/Documentation/devicetree/bindings/arm/atmel-at91.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-at91.txt
@@ -41,6 +41,36 @@ compatible: must be one of:
- "atmel,sama5d43"
- "atmel,sama5d44"
+ * "atmel,samv7" for MCUs using a Cortex-M7, shall be extended with the specific
+ SoC family:
+ o "atmel,sams70" shall be extended with the specific MCU compatible:
+ - "atmel,sams70j19"
+ - "atmel,sams70j20"
+ - "atmel,sams70j21"
+ - "atmel,sams70n19"
+ - "atmel,sams70n20"
+ - "atmel,sams70n21"
+ - "atmel,sams70q19"
+ - "atmel,sams70q20"
+ - "atmel,sams70q21"
+ o "atmel,samv70" shall be extended with the specific MCU compatible:
+ - "atmel,samv70j19"
+ - "atmel,samv70j20"
+ - "atmel,samv70n19"
+ - "atmel,samv70n20"
+ - "atmel,samv70q19"
+ - "atmel,samv70q20"
+ o "atmel,samv71" shall be extended with the specific MCU compatible:
+ - "atmel,samv71j19"
+ - "atmel,samv71j20"
+ - "atmel,samv71j21"
+ - "atmel,samv71n19"
+ - "atmel,samv71n20"
+ - "atmel,samv71n21"
+ - "atmel,samv71q19"
+ - "atmel,samv71q20"
+ - "atmel,samv71q21"
+
Chipid required properties:
- compatible: Should be "atmel,sama5d2-chipid"
- reg : Should contain registers location and length
diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm2835.txt b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm2835.txt
index 9c97de23919a..3e3efa046ac5 100644
--- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm2835.txt
+++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm2835.txt
@@ -42,6 +42,10 @@ Raspberry Pi Zero
Required root node properties:
compatible = "raspberrypi,model-zero", "brcm,bcm2835";
+Raspberry Pi Zero W
+Required root node properties:
+compatible = "raspberrypi,model-zero-w", "brcm,bcm2835";
+
Generic BCM2835 board
Required root node properties:
compatible = "brcm,bcm2835";
diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,stingray.txt b/Documentation/devicetree/bindings/arm/bcm/brcm,stingray.txt
new file mode 100644
index 000000000000..23a02178dd44
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/bcm/brcm,stingray.txt
@@ -0,0 +1,12 @@
+Broadcom Stingray device tree bindings
+------------------------------------------------
+
+Boards with Stingray shall have the following properties:
+
+Required root node property:
+
+Stingray Combo SVK board
+compatible = "brcm,bcm958742k", "brcm,stingray";
+
+Stingray SST100 board
+compatible = "brcm,bcm958742t", "brcm,stingray";
diff --git a/Documentation/devicetree/bindings/arm/bhf.txt b/Documentation/devicetree/bindings/arm/bhf.txt
new file mode 100644
index 000000000000..886b503caf9c
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/bhf.txt
@@ -0,0 +1,6 @@
+Beckhoff Automation Platforms Device Tree Bindings
+--------------------------------------------------
+
+CX9020 Embedded PC
+Required root node properties:
+ - compatible = "bhf,cx9020", "fsl,imx53";
diff --git a/Documentation/devicetree/bindings/arm/cci.txt b/Documentation/devicetree/bindings/arm/cci.txt
index 0f2153e8fa7e..9600761f2d5b 100644
--- a/Documentation/devicetree/bindings/arm/cci.txt
+++ b/Documentation/devicetree/bindings/arm/cci.txt
@@ -11,13 +11,6 @@ clusters, through memory mapped interface, with a global control register
space and multiple sets of interface control registers, one per slave
interface.
-Bindings for the CCI node follow the ePAPR standard, available from:
-
-www.power.org/documentation/epapr-version-1-1/
-
-with the addition of the bindings described in this document which are
-specific to ARM.
-
* CCI interconnect node
Description: Describes a CCI cache coherent Interconnect component
@@ -50,10 +43,10 @@ specific to ARM.
as a tuple of cells, containing child address,
parent address and the size of the region in the
child address space.
- Definition: A standard property. Follow rules in the ePAPR for
- hierarchical bus addressing. CCI interfaces
- addresses refer to the parent node addressing
- scheme to declare their register bases.
+ Definition: A standard property. Follow rules in the Devicetree
+ Specification for hierarchical bus addressing. CCI
+ interfaces addresses refer to the parent node
+ addressing scheme to declare their register bases.
CCI interconnect node can define the following child nodes:
diff --git a/Documentation/devicetree/bindings/arm/ccn.txt b/Documentation/devicetree/bindings/arm/ccn.txt
index b100d3847d88..29801456c9ee 100644
--- a/Documentation/devicetree/bindings/arm/ccn.txt
+++ b/Documentation/devicetree/bindings/arm/ccn.txt
@@ -3,6 +3,7 @@
Required properties:
- compatible: (standard compatible string) should be one of:
+ "arm,ccn-502"
"arm,ccn-504"
"arm,ccn-508"
diff --git a/Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt b/Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt
new file mode 100644
index 000000000000..298291211ea4
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt
@@ -0,0 +1,49 @@
+* CoreSight CPU Debug Component:
+
+CoreSight CPU debug component are compliant with the ARMv8 architecture
+reference manual (ARM DDI 0487A.k) Chapter 'Part H: External debug'. The
+external debug module is mainly used for two modes: self-hosted debug and
+external debug, and it can be accessed from mmio region from Coresight
+and eventually the debug module connects with CPU for debugging. And the
+debug module provides sample-based profiling extension, which can be used
+to sample CPU program counter, secure state and exception level, etc;
+usually every CPU has one dedicated debug module to be connected.
+
+Required properties:
+
+- compatible : should be "arm,coresight-cpu-debug"; supplemented with
+ "arm,primecell" since this driver is using the AMBA bus
+ interface.
+
+- reg : physical base address and length of the register set.
+
+- clocks : the clock associated to this component.
+
+- clock-names : the name of the clock referenced by the code. Since we are
+ using the AMBA framework, the name of the clock providing
+ the interconnect should be "apb_pclk" and the clock is
+ mandatory. The interface between the debug logic and the
+ processor core is clocked by the internal CPU clock, so it
+ is enabled with CPU clock by default.
+
+- cpu : the CPU phandle the debug module is affined to. When omitted
+ the module is considered to belong to CPU0.
+
+Optional properties:
+
+- power-domains: a phandle to the debug power domain. We use "power-domains"
+ binding to turn on the debug logic if it has own dedicated
+ power domain and if necessary to use "cpuidle.off=1" or
+ "nohlt" in the kernel command line or sysfs node to
+ constrain idle states to ensure registers in the CPU power
+ domain are accessible.
+
+Example:
+
+ debug@f6590000 {
+ compatible = "arm,coresight-cpu-debug","arm,primecell";
+ reg = <0 0xf6590000 0 0x1000>;
+ clocks = <&sys_ctrl HI6220_DAPB_CLK>;
+ clock-names = "apb_pclk";
+ cpu = <&cpu0>;
+ };
diff --git a/Documentation/devicetree/bindings/arm/coresight.txt b/Documentation/devicetree/bindings/arm/coresight.txt
index fcbae6a5e6c1..15ac8e8dcfdf 100644
--- a/Documentation/devicetree/bindings/arm/coresight.txt
+++ b/Documentation/devicetree/bindings/arm/coresight.txt
@@ -34,8 +34,8 @@ its hardware characteristcs.
- Embedded Trace Macrocell (version 4.x):
"arm,coresight-etm4x", "arm,primecell";
- - Qualcomm Configurable Replicator (version 1.x):
- "qcom,coresight-replicator1x", "arm,primecell";
+ - Coresight programmable Replicator :
+ "arm,coresight-dynamic-replicator", "arm,primecell";
- System Trace Macrocell:
"arm,coresight-stm", "arm,primecell"; [1]
diff --git a/Documentation/devicetree/bindings/arm/cpus.txt b/Documentation/devicetree/bindings/arm/cpus.txt
index 1030f5f50207..b92f12bd5244 100644
--- a/Documentation/devicetree/bindings/arm/cpus.txt
+++ b/Documentation/devicetree/bindings/arm/cpus.txt
@@ -6,9 +6,9 @@ The device tree allows to describe the layout of CPUs in a system through
the "cpus" node, which in turn contains a number of subnodes (ie "cpu")
defining properties for every cpu.
-Bindings for CPU nodes follow the ePAPR v1.1 standard, available from:
+Bindings for CPU nodes follow the Devicetree Specification, available from:
-https://www.power.org/documentation/epapr-version-1-1/
+https://www.devicetree.org/specifications/
with updates for 32-bit and 64-bit ARM systems provided in this document.
@@ -16,8 +16,8 @@ with updates for 32-bit and 64-bit ARM systems provided in this document.
Convention used in this document
================================
-This document follows the conventions described in the ePAPR v1.1, with
-the addition:
+This document follows the conventions described in the Devicetree
+Specification, with the addition:
- square brackets define bitfields, eg reg[7:0] value of the bitfield in
the reg property contained in bits 7 down to 0
@@ -26,8 +26,9 @@ the addition:
cpus and cpu node bindings definition
=====================================
-The ARM architecture, in accordance with the ePAPR, requires the cpus and cpu
-nodes to be present and contain the properties described below.
+The ARM architecture, in accordance with the Devicetree Specification,
+requires the cpus and cpu nodes to be present and contain the properties
+described below.
- cpus node
@@ -193,11 +194,13 @@ nodes to be present and contain the properties described below.
"spin-table"
# On ARM 32-bit systems this property is optional and
can be one of:
+ "actions,s500-smp"
"allwinner,sun6i-a31"
"allwinner,sun8i-a23"
"arm,realview-smp"
"brcm,bcm11351-cpu-method"
"brcm,bcm23550"
+ "brcm,bcm2836-smp"
"brcm,bcm-nsp-smp"
"brcm,brahma-b15"
"marvell,armada-375-smp"
@@ -249,7 +252,7 @@ nodes to be present and contain the properties described below.
Usage: Optional
Value type: <u32>
Definition:
- # u32 value representing CPU capacity [3] in
+ # u32 value representing CPU capacity [4] in
DMIPS/MHz, relative to highest capacity-dmips-mhz
in the system.
@@ -476,5 +479,5 @@ cpus {
[2] arm/msm/qcom,kpss-acc.txt
[3] ARM Linux kernel documentation - idle states bindings
Documentation/devicetree/bindings/arm/idle-states.txt
-[3] ARM Linux kernel documentation - cpu capacity bindings
+[4] ARM Linux kernel documentation - cpu capacity bindings
Documentation/devicetree/bindings/arm/cpu-capacity.txt
diff --git a/Documentation/devicetree/bindings/arm/gemini.txt b/Documentation/devicetree/bindings/arm/gemini.txt
index 0041eb031116..55bf7ce96c44 100644
--- a/Documentation/devicetree/bindings/arm/gemini.txt
+++ b/Documentation/devicetree/bindings/arm/gemini.txt
@@ -24,6 +24,19 @@ Required nodes:
global control registers, with the compatible string
"cortina,gemini-syscon", "syscon";
+ Required properties on the syscon:
+ - reg: syscon register location and size.
+ - #clock-cells: should be set to <1> - the system controller is also a
+ clock provider.
+ - #reset-cells: should be set to <1> - the system controller is also a
+ reset line provider.
+
+ The clock sources have shorthand defines in the include file:
+ <dt-bindings/clock/cortina,gemini-clock.h>
+
+ The reset lines have shorthand defines in the include file:
+ <dt-bindings/reset/cortina,gemini-reset.h>
+
- timer: the soc bus node must have a timer node pointing to the SoC timer
block, with the compatible string "cortina,gemini-timer"
See: clocksource/cortina,gemini-timer.txt
@@ -56,12 +69,15 @@ Example:
syscon: syscon@40000000 {
compatible = "cortina,gemini-syscon", "syscon";
reg = <0x40000000 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
};
uart0: serial@42000000 {
compatible = "ns16550a";
reg = <0x42000000 0x100>;
- clock-frequency = <48000000>;
+ resets = <&syscon GEMINI_RESET_UART>;
+ clocks = <&syscon GEMINI_CLK_UART>;
interrupts = <18 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
};
@@ -73,12 +89,18 @@ Example:
interrupts = <14 IRQ_TYPE_EDGE_FALLING>, /* Timer 1 */
<15 IRQ_TYPE_EDGE_FALLING>, /* Timer 2 */
<16 IRQ_TYPE_EDGE_FALLING>; /* Timer 3 */
+ resets = <&syscon GEMINI_RESET_TIMER>;
+ /* APB clock or RTC clock */
+ clocks = <&syscon GEMINI_CLK_APB>,
+ <&syscon GEMINI_CLK_RTC>;
+ clock-names = "PCLK", "EXTCLK";
syscon = <&syscon>;
};
intcon: interrupt-controller@48000000 {
compatible = "cortina,gemini-interrupt-controller";
reg = <0x48000000 0x1000>;
+ resets = <&syscon GEMINI_RESET_INTCON0>;
interrupt-controller;
#interrupt-cells = <2>;
};
diff --git a/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt b/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
index 2e732152064b..7111fbc82a4e 100644
--- a/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
+++ b/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
@@ -4,6 +4,10 @@ Hi3660 SoC
Required root node properties:
- compatible = "hisilicon,hi3660";
+HiKey960 Board
+Required root node properties:
+ - compatible = "hisilicon,hi3660-hikey960", "hisilicon,hi3660";
+
Hi3798cv200 SoC
Required root node properties:
- compatible = "hisilicon,hi3798cv200";
diff --git a/Documentation/devicetree/bindings/arm/idle-states.txt b/Documentation/devicetree/bindings/arm/idle-states.txt
index b8e41c148a3c..7a591333f2b1 100644
--- a/Documentation/devicetree/bindings/arm/idle-states.txt
+++ b/Documentation/devicetree/bindings/arm/idle-states.txt
@@ -695,5 +695,5 @@ cpus {
[4] ARM Architecture Reference Manuals
http://infocenter.arm.com/help/index.jsp
-[5] ePAPR standard
- https://www.power.org/documentation/epapr-version-1-1/
+[5] Devicetree Specification
+ https://www.devicetree.org/specifications/
diff --git a/Documentation/devicetree/bindings/arm/keystone/keystone.txt b/Documentation/devicetree/bindings/arm/keystone/keystone.txt
index 48f6703a28c8..f310bad04483 100644
--- a/Documentation/devicetree/bindings/arm/keystone/keystone.txt
+++ b/Documentation/devicetree/bindings/arm/keystone/keystone.txt
@@ -37,3 +37,6 @@ Boards:
- K2G EVM
compatible = "ti,k2g-evm", "ti,k2g", "ti-keystone"
+
+- K2G Industrial Communication Engine EVM
+ compatible = "ti,k2g-ice", "ti,k2g", "ti-keystone"
diff --git a/Documentation/devicetree/bindings/arm/l2c2x0.txt b/Documentation/devicetree/bindings/arm/l2c2x0.txt
index d9650c1788f4..fbe6cb21f4cf 100644
--- a/Documentation/devicetree/bindings/arm/l2c2x0.txt
+++ b/Documentation/devicetree/bindings/arm/l2c2x0.txt
@@ -4,8 +4,8 @@ ARM cores often have a separate L2C210/L2C220/L2C310 (also known as PL210/PL220/
PL310 and variants) based level 2 cache controller. All these various implementations
of the L2 cache controller have compatible programming models (Note 1).
Some of the properties that are just prefixed "cache-*" are taken from section
-3.7.3 of the ePAPR v1.1 specification which can be found at:
-https://www.power.org/wp-content/uploads/2012/06/Power_ePAPR_APPROVED_v1.1.pdf
+3.7.3 of the Devicetree Specification which can be found at:
+https://www.devicetree.org/specifications/
The ARM L2 cache representation in the device tree should be done as follows:
diff --git a/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt b/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
index 8968371d84e2..0b887440e08a 100644
--- a/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
+++ b/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
@@ -7,6 +7,14 @@ registers giving access to numerous features: clocks, pin-muxing and
many other SoC configuration items. This DT binding allows to describe
this system controller.
+For the top level node:
+ - compatible: must be: "syscon", "simple-mfd";
+ - reg: register area of the AP806 system controller
+
+Clocks:
+-------
+
+
The Device Tree node representing the AP806 system controller provides
a number of clocks:
@@ -17,19 +25,76 @@ a number of clocks:
Required properties:
- - compatible: must be:
- "marvell,ap806-system-controller", "syscon"
- - reg: register area of the AP806 system controller
+ - compatible: must be: "marvell,ap806-clock"
- #clock-cells: must be set to 1
- - clock-output-names: must be defined to:
- "ap-cpu-cluster-0", "ap-cpu-cluster-1", "ap-fixed", "ap-mss"
+
+Pinctrl:
+--------
+
+For common binding part and usage, refer to
+Documentation/devicetree/bindings/pinctrl/marvell,mvebu-pinctrl.txt.
+
+Required properties:
+- compatible must be "marvell,ap806-pinctrl",
+
+Available mpp pins/groups and functions:
+Note: brackets (x) are not part of the mpp name for marvell,function and given
+only for more detailed description in this document.
+
+name pins functions
+================================================================================
+mpp0 0 gpio, sdio(clk), spi0(clk)
+mpp1 1 gpio, sdio(cmd), spi0(miso)
+mpp2 2 gpio, sdio(d0), spi0(mosi)
+mpp3 3 gpio, sdio(d1), spi0(cs0n)
+mpp4 4 gpio, sdio(d2), i2c0(sda)
+mpp5 5 gpio, sdio(d3), i2c0(sdk)
+mpp6 6 gpio, sdio(ds)
+mpp7 7 gpio, sdio(d4), uart1(rxd)
+mpp8 8 gpio, sdio(d5), uart1(txd)
+mpp9 9 gpio, sdio(d6), spi0(cs1n)
+mpp10 10 gpio, sdio(d7)
+mpp11 11 gpio, uart0(txd)
+mpp12 12 gpio, sdio(pw_off), sdio(hw_rst)
+mpp13 13 gpio
+mpp14 14 gpio
+mpp15 15 gpio
+mpp16 16 gpio
+mpp17 17 gpio
+mpp18 18 gpio
+mpp19 19 gpio, uart0(rxd), sdio(pw_off)
+
+GPIO:
+-----
+For common binding part and usage, refer to
+Documentation/devicetree/bindings/gpio/gpio-mvebu.txt.
+
+Required properties:
+
+- compatible: "marvell,armada-8k-gpio"
+
+- offset: offset address inside the syscon block
Example:
+ap_syscon: system-controller@6f4000 {
+ compatible = "syscon", "simple-mfd";
+ reg = <0x6f4000 0x1000>;
- syscon: system-controller@6f4000 {
- compatible = "marvell,ap806-system-controller", "syscon";
+ ap_clk: clock {
+ compatible = "marvell,ap806-clock";
#clock-cells = <1>;
- clock-output-names = "ap-cpu-cluster-0", "ap-cpu-cluster-1",
- "ap-fixed", "ap-mss";
- reg = <0x6f4000 0x1000>;
};
+
+ ap_pinctrl: pinctrl {
+ compatible = "marvell,ap806-pinctrl";
+ };
+
+ ap_gpio: gpio {
+ compatible = "marvell,armada-8k-gpio";
+ offset = <0x1040>;
+ ngpios = <19>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&ap_pinctrl 0 0 19>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/arm/marvell/armada-8kp.txt b/Documentation/devicetree/bindings/arm/marvell/armada-8kp.txt
new file mode 100644
index 000000000000..f3e9624534c6
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/marvell/armada-8kp.txt
@@ -0,0 +1,15 @@
+Marvell Armada 8KPlus Platforms Device Tree Bindings
+----------------------------------------------------
+
+Boards using a SoC of the Marvell Armada 8KP families must carry
+the following root node property:
+
+ - compatible, with one of the following values:
+
+ - "marvell,armada-8080", "marvell,armada-ap810-octa", "marvell,armada-ap810"
+ when the SoC being used is the Armada 8080
+
+Example:
+
+compatible = "marvell,armada-8080-db", "marvell,armada-8080",
+ "marvell,armada-ap810-octa", "marvell,armada-ap810"
diff --git a/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller0.txt b/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller0.txt
index 07dbb358182c..29cdbae6c5ac 100644
--- a/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller0.txt
+++ b/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller0.txt
@@ -7,6 +7,13 @@ Controller 0 and System Controller 1. This Device Tree binding allows
to describe the first system controller, which provides registers to
configure various aspects of the SoC.
+For the top level node:
+ - compatible: must be: "syscon", "simple-mfd";
+ - reg: register area of the CP110 system controller 0
+
+Clocks:
+-------
+
The Device Tree node representing this System Controller 0 provides a
number of clocks:
@@ -27,6 +34,7 @@ The following clocks are available:
- 0 2 EIP
- 0 3 Core
- 0 4 NAND core
+ - 0 5 SDIO core
- Gatable clocks
- 1 0 Audio
- 1 1 Comm Unit
@@ -56,28 +64,125 @@ The following clocks are available:
Required properties:
- compatible: must be:
- "marvell,cp110-system-controller0", "syscon";
- - reg: register area of the CP110 system controller 0
+ "marvell,cp110-clock"
- #clock-cells: must be set to 2
- - core-clock-output-names must be set to:
- "cpm-apll", "cpm-ppv2-core", "cpm-eip", "cpm-core", "cpm-nand-core"
- - gate-clock-output-names must be set to:
- "cpm-audio", "cpm-communit", "cpm-nand", "cpm-ppv2", "cpm-sdio",
- "cpm-mg-domain", "cpm-mg-core", "cpm-xor1", "cpm-xor0", "cpm-gop-dp", "none",
- "cpm-pcie_x10", "cpm-pcie_x11", "cpm-pcie_x4", "cpm-pcie-xor", "cpm-sata",
- "cpm-sata-usb", "cpm-main", "cpm-sd-mmc-gop", "none", "none", "cpm-slow-io",
- "cpm-usb3h0", "cpm-usb3h1", "cpm-usb3dev", "cpm-eip150", "cpm-eip197";
+
+Pinctrl:
+--------
+
+For common binding part and usage, refer to the file
+Documentation/devicetree/bindings/pinctrl/marvell,mvebu-pinctrl.txt.
+
+Required properties:
+
+- compatible: "marvell,armada-7k-pinctrl",
+ "marvell,armada-8k-cpm-pinctrl" or "marvell,armada-8k-cps-pinctrl"
+ depending on the specific variant of the SoC being used.
+
+Available mpp pins/groups and functions:
+Note: brackets (x) are not part of the mpp name for marvell,function and given
+only for more detailed description in this document.
+
+name pins functions
+================================================================================
+mpp0 0 gpio, dev(ale1), au(i2smclk), ge0(rxd3), tdm(pclk), ptp(pulse), mss_i2c(sda), uart0(rxd), sata0(present_act), ge(mdio)
+mpp1 1 gpio, dev(ale0), au(i2sdo_spdifo), ge0(rxd2), tdm(drx), ptp(clk), mss_i2c(sck), uart0(txd), sata1(present_act), ge(mdc)
+mpp2 2 gpio, dev(ad15), au(i2sextclk), ge0(rxd1), tdm(dtx), mss_uart(rxd), ptp(pclk_out), i2c1(sck), uart1(rxd), sata0(present_act), xg(mdc)
+mpp3 3 gpio, dev(ad14), au(i2slrclk), ge0(rxd0), tdm(fsync), mss_uart(txd), pcie(rstoutn), i2c1(sda), uart1(txd), sata1(present_act), xg(mdio)
+mpp4 4 gpio, dev(ad13), au(i2sbclk), ge0(rxctl), tdm(rstn), mss_uart(rxd), uart1(cts), pcie0(clkreq), uart3(rxd), ge(mdc)
+mpp5 5 gpio, dev(ad12), au(i2sdi), ge0(rxclk), tdm(intn), mss_uart(txd), uart1(rts), pcie1(clkreq), uart3(txd), ge(mdio)
+mpp6 6 gpio, dev(ad11), ge0(txd3), spi0(csn2), au(i2sextclk), sata1(present_act), pcie2(clkreq), uart0(rxd), ptp(pulse)
+mpp7 7 gpio, dev(ad10), ge0(txd2), spi0(csn1), spi1(csn1), sata0(present_act), led(data), uart0(txd), ptp(clk)
+mpp8 8 gpio, dev(ad9), ge0(txd1), spi0(csn0), spi1(csn0), uart0(cts), led(stb), uart2(rxd), ptp(pclk_out), synce1(clk)
+mpp9 9 gpio, dev(ad8), ge0(txd0), spi0(mosi), spi1(mosi), pcie(rstoutn), synce2(clk)
+mpp10 10 gpio, dev(readyn), ge0(txctl), spi0(miso), spi1(miso), uart0(cts), sata1(present_act)
+mpp11 11 gpio, dev(wen1), ge0(txclkout), spi0(clk), spi1(clk), uart0(rts), led(clk), uart2(txd), sata0(present_act)
+mpp12 12 gpio, dev(clk_out), nf(rbn1), spi1(csn1), ge0(rxclk)
+mpp13 13 gpio, dev(burstn), nf(rbn0), spi1(miso), ge0(rxctl), mss_spi(miso)
+mpp14 14 gpio, dev(bootcsn), dev(csn0), spi1(csn0), spi0(csn3), au(i2sextclk), spi0(miso), sata0(present_act), mss_spi(csn)
+mpp15 15 gpio, dev(ad7), spi1(mosi), spi0(mosi), mss_spi(mosi), ptp(pulse_cp2cp)
+mpp16 16 gpio, dev(ad6), spi1(clk), mss_spi(clk)
+mpp17 17 gpio, dev(ad5), ge0(txd3)
+mpp18 18 gpio, dev(ad4), ge0(txd2), ptp(clk_cp2cp)
+mpp19 19 gpio, dev(ad3), ge0(txd1), wakeup(out_cp2cp)
+mpp20 20 gpio, dev(ad2), ge0(txd0)
+mpp21 21 gpio, dev(ad1), ge0(txctl), sei(in_cp2cp)
+mpp22 22 gpio, dev(ad0), ge0(txclkout), wakeup(in_cp2cp)
+mpp23 23 gpio, dev(a1), au(i2smclk), link(rd_in_cp2cp)
+mpp24 24 gpio, dev(a0), au(i2slrclk)
+mpp25 25 gpio, dev(oen), au(i2sdo_spdifo)
+mpp26 26 gpio, dev(wen0), au(i2sbclk)
+mpp27 27 gpio, dev(csn0), spi1(miso), mss_gpio4, ge0(rxd3), spi0(csn4), ge(mdio), sata0(present_act), uart0(rts), rei(in_cp2cp)
+mpp28 28 gpio, dev(csn1), spi1(csn0), mss_gpio5, ge0(rxd2), spi0(csn5), pcie2(clkreq), ptp(pulse), ge(mdc), sata1(present_act), uart0(cts), led(data)
+mpp29 29 gpio, dev(csn2), spi1(mosi), mss_gpio6, ge0(rxd1), spi0(csn6), pcie1(clkreq), ptp(clk), mss_i2c(sda), sata0(present_act), uart0(rxd), led(stb)
+mpp30 30 gpio, dev(csn3), spi1(clk), mss_gpio7, ge0(rxd0), spi0(csn7), pcie0(clkreq), ptp(pclk_out), mss_i2c(sck), sata1(present_act), uart0(txd), led(clk)
+mpp31 31 gpio, dev(a2), mss_gpio4, pcie(rstoutn), ge(mdc)
+mpp32 32 gpio, mii(col), mii(txerr), mss_spi(miso), tdm(drx), au(i2sextclk), au(i2sdi), ge(mdio), sdio(v18_en), pcie1(clkreq), mss_gpio0
+mpp33 33 gpio, mii(txclk), sdio(pwr10), mss_spi(csn), tdm(fsync), au(i2smclk), sdio(bus_pwr), xg(mdio), pcie2(clkreq), mss_gpio1
+mpp34 34 gpio, mii(rxerr), sdio(pwr11), mss_spi(mosi), tdm(dtx), au(i2slrclk), sdio(wr_protect), ge(mdc), pcie0(clkreq), mss_gpio2
+mpp35 35 gpio, sata1(present_act), i2c1(sda), mss_spi(clk), tdm(pclk), au(i2sdo_spdifo), sdio(card_detect), xg(mdio), ge(mdio), pcie(rstoutn), mss_gpio3
+mpp36 36 gpio, synce2(clk), i2c1(sck), ptp(clk), synce1(clk), au(i2sbclk), sata0(present_act), xg(mdc), ge(mdc), pcie2(clkreq), mss_gpio5
+mpp37 37 gpio, uart2(rxd), i2c0(sck), ptp(pclk_out), tdm(intn), mss_i2c(sck), sata1(present_act), ge(mdc), xg(mdc), pcie1(clkreq), mss_gpio6, link(rd_out_cp2cp)
+mpp38 38 gpio, uart2(txd), i2c0(sda), ptp(pulse), tdm(rstn), mss_i2c(sda), sata0(present_act), ge(mdio), xg(mdio), au(i2sextclk), mss_gpio7, ptp(pulse_cp2cp)
+mpp39 39 gpio, sdio(wr_protect), au(i2sbclk), ptp(clk), spi0(csn1), sata1(present_act), mss_gpio0
+mpp40 40 gpio, sdio(pwr11), synce1(clk), mss_i2c(sda), au(i2sdo_spdifo), ptp(pclk_out), spi0(clk), uart1(txd), ge(mdio), sata0(present_act), mss_gpio1
+mpp41 41 gpio, sdio(pwr10), sdio(bus_pwr), mss_i2c(sck), au(i2slrclk), ptp(pulse), spi0(mosi), uart1(rxd), ge(mdc), sata1(present_act), mss_gpio2, rei(out_cp2cp)
+mpp42 42 gpio, sdio(v18_en), sdio(wr_protect), synce2(clk), au(i2smclk), mss_uart(txd), spi0(miso), uart1(cts), xg(mdc), sata0(present_act), mss_gpio4
+mpp43 43 gpio, sdio(card_detect), synce1(clk), au(i2sextclk), mss_uart(rxd), spi0(csn0), uart1(rts), xg(mdio), sata1(present_act), mss_gpio5, wakeup(out_cp2cp)
+mpp44 44 gpio, ge1(txd2), uart0(rts), ptp(clk_cp2cp)
+mpp45 45 gpio, ge1(txd3), uart0(txd), pcie(rstoutn)
+mpp46 46 gpio, ge1(txd1), uart1(rts)
+mpp47 47 gpio, ge1(txd0), spi1(clk), uart1(txd), ge(mdc)
+mpp48 48 gpio, ge1(txctl_txen), spi1(mosi), xg(mdc), wakeup(in_cp2cp)
+mpp49 49 gpio, ge1(txclkout), mii(crs), spi1(miso), uart1(rxd), ge(mdio), pcie0(clkreq), sdio(v18_en), sei(out_cp2cp)
+mpp50 50 gpio, ge1(rxclk), mss_i2c(sda), spi1(csn0), uart2(txd), uart0(rxd), xg(mdio), sdio(pwr11)
+mpp51 51 gpio, ge1(rxd0), mss_i2c(sck), spi1(csn1), uart2(rxd), uart0(cts), sdio(pwr10)
+mpp52 52 gpio, ge1(rxd1), synce1(clk), synce2(clk), spi1(csn2), uart1(cts), led(clk), pcie(rstoutn), pcie0(clkreq)
+mpp53 53 gpio, ge1(rxd2), ptp(clk), spi1(csn3), uart1(rxd), led(stb), sdio(led)
+mpp54 54 gpio, ge1(rxd3), synce2(clk), ptp(pclk_out), synce1(clk), led(data), sdio(hw_rst), sdio(wr_protect)
+mpp55 55 gpio, ge1(rxctl_rxdv), ptp(pulse), sdio(led), sdio(card_detect)
+mpp56 56 gpio, tdm(drx), au(i2sdo_spdifo), spi0(clk), uart1(rxd), sata1(present_act), sdio(clk)
+mpp57 57 gpio, mss_i2c(sda), ptp(pclk_out), tdm(intn), au(i2sbclk), spi0(mosi), uart1(txd), sata0(present_act), sdio(cmd)
+mpp58 58 gpio, mss_i2c(sck), ptp(clk), tdm(rstn), au(i2sdi), spi0(miso), uart1(cts), led(clk), sdio(d0)
+mpp59 59 gpio, mss_gpio7, synce2(clk), tdm(fsync), au(i2slrclk), spi0(csn0), uart0(cts), led(stb), uart1(txd), sdio(d1)
+mpp60 60 gpio, mss_gpio6, ptp(pulse), tdm(dtx), au(i2smclk), spi0(csn1), uart0(rts), led(data), uart1(rxd), sdio(d2)
+mpp61 61 gpio, mss_gpio5, ptp(clk), tdm(pclk), au(i2sextclk), spi0(csn2), uart0(txd), uart2(txd), sata1(present_act), ge(mdio), sdio(d3)
+mpp62 62 gpio, mss_gpio4, synce1(clk), ptp(pclk_out), sata1(present_act), spi0(csn3), uart0(rxd), uart2(rxd), sata0(present_act), ge(mdc)
+
+GPIO:
+-----
+
+For common binding part and usage, refer to
+Documentation/devicetree/bindings/gpio/gpio-mvebu.txt.
+
+Required properties:
+
+- compatible: "marvell,armada-8k-gpio"
+
+- offset: offset address inside the syscon block
Example:
- cpm_syscon0: system-controller@440000 {
- compatible = "marvell,cp110-system-controller0", "syscon";
- reg = <0x440000 0x1000>;
+cpm_syscon0: system-controller@440000 {
+ compatible = "syscon", "simple-mfd";
+ reg = <0x440000 0x1000>;
+
+ cpm_clk: clock {
+ compatible = "marvell,cp110-clock";
#clock-cells = <2>;
- core-clock-output-names = "cpm-apll", "cpm-ppv2-core", "cpm-eip", "cpm-core", "cpm-nand-core";
- gate-clock-output-names = "cpm-audio", "cpm-communit", "cpm-nand", "cpm-ppv2", "cpm-sdio",
- "cpm-mg-domain", "cpm-mg-core", "cpm-xor1", "cpm-xor0", "cpm-gop-dp", "none",
- "cpm-pcie_x10", "cpm-pcie_x11", "cpm-pcie_x4", "cpm-pcie-xor", "cpm-sata",
- "cpm-sata-usb", "cpm-main", "cpm-sd-mmc-gop", "none", "none", "cpm-slow-io",
- "cpm-usb3h0", "cpm-usb3h1", "cpm-usb3dev", "cpm-eip150", "cpm-eip197";
};
+
+ cpm_pinctrl: pinctrl {
+ compatible = "marvell,armada-8k-cpm-pinctrl";
+ };
+
+ cpm_gpio1: gpio@100 {
+ compatible = "marvell,armada-8k-gpio";
+ offset = <0x100>;
+ ngpios = <32>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&cpm_pinctrl 0 0 32>;
+ };
+
+};
diff --git a/Documentation/devicetree/bindings/arm/mediatek.txt b/Documentation/devicetree/bindings/arm/mediatek.txt
index c860b245d8c8..91d517849483 100644
--- a/Documentation/devicetree/bindings/arm/mediatek.txt
+++ b/Documentation/devicetree/bindings/arm/mediatek.txt
@@ -1,18 +1,21 @@
-MediaTek mt65xx, mt67xx & mt81xx Platforms Device Tree Bindings
+MediaTek SoC based Platforms Device Tree Bindings
-Boards with a MediaTek mt65xx/mt67xx/mt81xx SoC shall have the
-following property:
+Boards with a MediaTek SoC shall have the following property:
Required root node property:
compatible: Must contain one of
"mediatek,mt2701"
+ "mediatek,mt2712"
"mediatek,mt6580"
"mediatek,mt6589"
"mediatek,mt6592"
"mediatek,mt6755"
"mediatek,mt6795"
- "mediatek,mt7623"
+ "mediatek,mt6797"
+ "mediatek,mt7622"
+ "mediatek,mt7623" which is referred to MT7623N SoC
+ "mediatek,mt7623a"
"mediatek,mt8127"
"mediatek,mt8135"
"mediatek,mt8173"
@@ -23,6 +26,9 @@ Supported boards:
- Evaluation board for MT2701:
Required root node properties:
- compatible = "mediatek,mt2701-evb", "mediatek,mt2701";
+- Evaluation board for MT2712:
+ Required root node properties:
+ - compatible = "mediatek,mt2712-evb", "mediatek,mt2712";
- Evaluation board for MT6580:
Required root node properties:
- compatible = "mediatek,mt6580-evbp1", "mediatek,mt6580";
@@ -38,9 +44,17 @@ Supported boards:
- Evaluation board for MT6795(Helio X10):
Required root node properties:
- compatible = "mediatek,mt6795-evb", "mediatek,mt6795";
-- Evaluation board for MT7623:
+- Evaluation board for MT6797(Helio X20):
+ Required root node properties:
+ - compatible = "mediatek,mt6797-evb", "mediatek,mt6797";
+- Reference board variant 1 for MT7622:
+ Required root node properties:
+ - compatible = "mediatek,mt7622-rfb1", "mediatek,mt7622";
+- Reference board for MT7623n with NAND:
Required root node properties:
- - compatible = "mediatek,mt7623-evb", "mediatek,mt7623";
+ - compatible = "mediatek,mt7623n-rfb-nand", "mediatek,mt7623";
+- Bananapi BPI-R2 board:
+ - compatible = "bananapi,bpi-r2", "mediatek,mt7623";
- MTK mt8127 tablet moose EVB:
Required root node properties:
- compatible = "mediatek,mt8127-moose", "mediatek,mt8127";
diff --git a/Documentation/devicetree/bindings/arm/omap/omap.txt b/Documentation/devicetree/bindings/arm/omap/omap.txt
index 8219b2c6bb29..2ecc712bf707 100644
--- a/Documentation/devicetree/bindings/arm/omap/omap.txt
+++ b/Documentation/devicetree/bindings/arm/omap/omap.txt
@@ -80,6 +80,9 @@ SoCs:
- OMAP5432
compatible = "ti,omap5432", "ti,omap5"
+- DRA762
+ compatible = "ti,dra762", "ti,dra7"
+
- DRA742
compatible = "ti,dra742", "ti,dra74", "ti,dra7"
@@ -154,6 +157,9 @@ Boards:
- AM335X phyCORE-AM335x: Development kit
compatible = "phytec,am335x-pcm-953", "phytec,am335x-phycore-som", "ti,am33xx"
+- AM335X UC-8100-ME-T: Communication-centric industrial computing platform
+ compatible = "moxa,uc-8100-me-t", "ti,am33xx";
+
- OMAP5 EVM : Evaluation Module
compatible = "ti,omap5-evm", "ti,omap5"
@@ -184,6 +190,9 @@ Boards:
- AM5718 IDK
compatible = "ti,am5718-idk", "ti,am5718", "ti,dra7"
+- DRA762 EVM: Software Development Board for DRA762
+ compatible = "ti,dra76-evm", "ti,dra762", "ti,dra7"
+
- DRA742 EVM: Software Development Board for DRA742
compatible = "ti,dra7-evm", "ti,dra742", "ti,dra74", "ti,dra7"
diff --git a/Documentation/devicetree/bindings/arm/pmu.txt b/Documentation/devicetree/bindings/arm/pmu.txt
index 61c8b4620415..13611a8199bb 100644
--- a/Documentation/devicetree/bindings/arm/pmu.txt
+++ b/Documentation/devicetree/bindings/arm/pmu.txt
@@ -9,9 +9,11 @@ Required properties:
- compatible : should be one of
"apm,potenza-pmu"
"arm,armv8-pmuv3"
+ "arm,cortex-a73-pmu"
"arm,cortex-a72-pmu"
"arm,cortex-a57-pmu"
"arm,cortex-a53-pmu"
+ "arm,cortex-a35-pmu"
"arm,cortex-a17-pmu"
"arm,cortex-a15-pmu"
"arm,cortex-a12-pmu"
diff --git a/Documentation/devicetree/bindings/arm/qcom.txt b/Documentation/devicetree/bindings/arm/qcom.txt
index 028d16e72186..0ed4d39d7fe1 100644
--- a/Documentation/devicetree/bindings/arm/qcom.txt
+++ b/Documentation/devicetree/bindings/arm/qcom.txt
@@ -25,6 +25,7 @@ The 'SoC' element must be one of the following strings:
msm8994
msm8996
mdm9615
+ ipq8074
The 'board' element must be one of the following strings:
@@ -33,6 +34,7 @@ The 'board' element must be one of the following strings:
dragonboard
mtp
sbc
+ hk01
The 'soc_version' and 'board_version' elements take the form of v<Major>.<Minor>
where the minor number may be omitted when it's zero, i.e. v1.0 is the same
diff --git a/Documentation/devicetree/bindings/arm/realtek.txt b/Documentation/devicetree/bindings/arm/realtek.txt
new file mode 100644
index 000000000000..13d755787b4f
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/realtek.txt
@@ -0,0 +1,20 @@
+Realtek platforms device tree bindings
+--------------------------------------
+
+
+RTD1295 SoC
+===========
+
+Required root node properties:
+
+ - compatible : must contain "realtek,rtd1295"
+
+
+Root node property compatible must contain, depending on board:
+
+ - Zidoo X9S: "zidoo,x9s"
+
+
+Example:
+
+ compatible = "zidoo,x9s", "realtek,rtd1295";
diff --git a/Documentation/devicetree/bindings/arm/rockchip.txt b/Documentation/devicetree/bindings/arm/rockchip.txt
index c965d99e86c2..b003148e2945 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.txt
+++ b/Documentation/devicetree/bindings/arm/rockchip.txt
@@ -42,6 +42,10 @@ Rockchip platforms device tree bindings
Required root node properties:
- compatible = "firefly,firefly-rk3288-reload", "rockchip,rk3288";
+- Firefly Firefly-RK3399 board:
+ Required root node properties:
+ - compatible = "firefly,firefly-rk3399", "rockchip,rk3399";
+
- ChipSPARK PopMetal-RK3288 board:
Required root node properties:
- compatible = "chipspark,popmetal-rk3288", "rockchip,rk3288";
@@ -130,6 +134,10 @@ Rockchip platforms device tree bindings
Required root node properties:
- compatible = "phytec,rk3288-pcm-947", "phytec,rk3288-phycore-som", "rockchip,rk3288";
+- Pine64 Rock64 board:
+ Required root node properties:
+ - compatible = "pine64,rock64", "rockchip,rk3328";
+
- Rockchip PX3 Evaluation board:
Required root node properties:
- compatible = "rockchip,px3-evb", "rockchip,px3", "rockchip,rk3188";
@@ -138,9 +146,9 @@ Rockchip platforms device tree bindings
Required root node properties:
- compatible = "rockchip,px5-evb", "rockchip,px5", "rockchip,rk3368";
-- Rockchip RK1108 Evaluation board
+- Rockchip RV1108 Evaluation board
Required root node properties:
- - compatible = "rockchip,rk1108-evb", "rockchip,rk1108";
+ - compatible = "rockchip,rv1108-evb", "rockchip,rv1108";
- Rockchip RK3368 evb:
Required root node properties:
@@ -169,6 +177,14 @@ Rockchip platforms device tree bindings
Required root node properties:
- compatible = "rockchip,rk3399-evb", "rockchip,rk3399";
+- Rockchip RK3399 Sapphire Excavator board:
+ Required root node properties:
+ - compatible = "rockchip,rk3399-sapphire-excavator", "rockchip,rk3399";
+
+- Theobroma Systems RK3399-Q7 Haikou Baseboard:
+ Required root node properties:
+ - compatible = "tsd,rk3399-q7-haikou", "rockchip,rk3399";
+
- Tronsmart Orion R68 Meta
Required root node properties:
- compatible = "tronsmart,orion-r68-meta", "rockchip,rk3368";
diff --git a/Documentation/devicetree/bindings/arm/shmobile.txt b/Documentation/devicetree/bindings/arm/shmobile.txt
index 170fe0562c63..ae75cb3b1331 100644
--- a/Documentation/devicetree/bindings/arm/shmobile.txt
+++ b/Documentation/devicetree/bindings/arm/shmobile.txt
@@ -39,6 +39,8 @@ SoCs:
compatible = "renesas,r8a7795"
- R-Car M3-W (R8A77960)
compatible = "renesas,r8a7796"
+ - R-Car D3 (R8A77995)
+ compatible = "renesas,r8a77995"
Boards:
@@ -53,14 +55,27 @@ Boards:
compatible = "renesas,blanche", "renesas,r8a7792"
- BOCK-W
compatible = "renesas,bockw", "renesas,r8a7778"
+ - Draak (RTP0RC77995SEB0010S)
+ compatible = "renesas,draak", "renesas,r8a77995"
- Genmai (RTK772100BC00000BR)
compatible = "renesas,genmai", "renesas,r7s72100"
+ - GR-Peach (X28A-M01-E/F)
+ compatible = "renesas,gr-peach", "renesas,r7s72100"
- Gose (RTP0RC7793SEB00010S)
compatible = "renesas,gose", "renesas,r8a7793"
- - H3ULCB (R-Car Starter Kit Premier, RTP0RC7795SKB00010S)
+ - H3ULCB (R-Car Starter Kit Premier, RTP0RC7795SKBX0010SA00 (H3 ES1.1))
+ H3ULCB (R-Car Starter Kit Premier, RTP0RC77951SKBX010SA00 (H3 ES2.0))
compatible = "renesas,h3ulcb", "renesas,r8a7795";
- Henninger
compatible = "renesas,henninger", "renesas,r8a7791"
+ - iWave Systems RZ/G1E SODIMM SOM Development Platform (iW-RainboW-G22D)
+ compatible = "iwave,g22d", "iwave,g22m", "renesas,r8a7745"
+ - iWave Systems RZ/G1E SODIMM System On Module (iW-RainboW-G22M-SM)
+ compatible = "iwave,g22m", "renesas,r8a7745"
+ - iWave Systems RZ/G1M Qseven Development Platform (iW-RainboW-G20D-Qseven)
+ compatible = "iwave,g20d", "iwave,g20m", "renesas,r8a7743"
+ - iWave Systems RZ/G1M Qseven System On Module (iW-RainboW-G20M-Qseven)
+ compatible = "iwave,g20m", "renesas,r8a7743"
- Koelsch (RTP0RC7791SEB00010S)
compatible = "renesas,koelsch", "renesas,r8a7791"
- Kyoto Microcomputer Co. KZM-A9-Dual
@@ -69,7 +84,7 @@ Boards:
compatible = "renesas,kzm9g", "renesas,sh73a0"
- Lager (RTP0RC7790SEB00010S)
compatible = "renesas,lager", "renesas,r8a7790"
- - M3ULCB (R-Car Starter Kit Pro, RTP0RC7796SKB00010S)
+ - M3ULCB (R-Car Starter Kit Pro, RTP0RC7796SKBX0010SA09 (M3 ES1.0))
compatible = "renesas,m3ulcb", "renesas,r8a7796";
- Marzen (R0P7779A00010S)
compatible = "renesas,marzen", "renesas,r8a7779"
@@ -81,6 +96,8 @@ Boards:
compatible = "renesas,salvator-x", "renesas,r8a7795";
- Salvator-X (RTP0RC7796SIPB0011S)
compatible = "renesas,salvator-x", "renesas,r8a7796";
+ - Salvator-XS (Salvator-X 2nd version, RTP0RC7795SIPB0012S)
+ compatible = "renesas,salvator-xs", "renesas,r8a7795";
- SILK (RTP0RC7794LCB00011S)
compatible = "renesas,silk", "renesas,r8a7794"
- SK-RZG1E (YR8A77450S000BE)
diff --git a/Documentation/devicetree/bindings/arm/tegra.txt b/Documentation/devicetree/bindings/arm/tegra.txt
index b5a4342c1d46..7f1411bbabf7 100644
--- a/Documentation/devicetree/bindings/arm/tegra.txt
+++ b/Documentation/devicetree/bindings/arm/tegra.txt
@@ -29,7 +29,6 @@ board-specific compatible values:
nvidia,harmony
nvidia,seaboard
nvidia,ventana
- nvidia,whistler
toradex,apalis_t30
toradex,apalis_t30-eval
toradex,apalis-tk1
diff --git a/Documentation/devicetree/bindings/arm/topology.txt b/Documentation/devicetree/bindings/arm/topology.txt
index 1061faf5f602..de9eb0486630 100644
--- a/Documentation/devicetree/bindings/arm/topology.txt
+++ b/Documentation/devicetree/bindings/arm/topology.txt
@@ -29,9 +29,9 @@ corresponding to the system hierarchy; syntactically they are defined as device
tree nodes.
The remainder of this document provides the topology bindings for ARM, based
-on the ePAPR standard, available from:
+on the Devicetree Specification, available from:
-http://www.power.org/documentation/epapr-version-1-1/
+https://www.devicetree.org/specifications/
If not stated otherwise, whenever a reference to a cpu node phandle is made its
value must point to a cpu node compliant with the cpu node bindings as
diff --git a/Documentation/devicetree/bindings/ata/ahci-fsl-qoriq.txt b/Documentation/devicetree/bindings/ata/ahci-fsl-qoriq.txt
index fc33ca01e9ba..7c3ca0e13de0 100644
--- a/Documentation/devicetree/bindings/ata/ahci-fsl-qoriq.txt
+++ b/Documentation/devicetree/bindings/ata/ahci-fsl-qoriq.txt
@@ -3,7 +3,7 @@ Binding for Freescale QorIQ AHCI SATA Controller
Required properties:
- reg: Physical base address and size of the controller's register area.
- compatible: Compatibility string. Must be 'fsl,<chip>-ahci', where
- chip could be ls1021a, ls1043a, ls1046a, ls2080a etc.
+ chip could be ls1021a, ls1043a, ls1046a, ls1088a, ls2080a etc.
- clocks: Input clock specifier. Refer to common clock bindings.
- interrupts: Interrupt specifier. Refer to interrupt binding.
diff --git a/Documentation/devicetree/bindings/ata/ahci-mtk.txt b/Documentation/devicetree/bindings/ata/ahci-mtk.txt
new file mode 100644
index 000000000000..d2aa696b161b
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/ahci-mtk.txt
@@ -0,0 +1,51 @@
+MediaTek Serial ATA controller
+
+Required properties:
+ - compatible : Must be "mediatek,<chip>-ahci", "mediatek,mtk-ahci".
+ When using "mediatek,mtk-ahci" compatible strings, you
+ need SoC specific ones in addition, one of:
+ - "mediatek,mt7622-ahci"
+ - reg : Physical base addresses and length of register sets.
+ - interrupts : Interrupt associated with the SATA device.
+ - interrupt-names : Associated name must be: "hostc".
+ - clocks : A list of phandle and clock specifier pairs, one for each
+ entry in clock-names.
+ - clock-names : Associated names must be: "ahb", "axi", "asic", "rbc", "pm".
+ - phys : A phandle and PHY specifier pair for the PHY port.
+ - phy-names : Associated name must be: "sata-phy".
+ - ports-implemented : See ./ahci-platform.txt for details.
+
+Optional properties:
+ - power-domains : A phandle and power domain specifier pair to the power
+ domain which is responsible for collapsing and restoring
+ power to the peripheral.
+ - resets : Must contain an entry for each entry in reset-names.
+ See ../reset/reset.txt for details.
+ - reset-names : Associated names must be: "axi", "sw", "reg".
+ - mediatek,phy-mode : A phandle to the system controller, used to enable
+ SATA function.
+
+Example:
+
+ sata: sata@1a200000 {
+ compatible = "mediatek,mt7622-ahci",
+ "mediatek,mtk-ahci";
+ reg = <0 0x1a200000 0 0x1100>;
+ interrupts = <GIC_SPI 233 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "hostc";
+ clocks = <&pciesys CLK_SATA_AHB_EN>,
+ <&pciesys CLK_SATA_AXI_EN>,
+ <&pciesys CLK_SATA_ASIC_EN>,
+ <&pciesys CLK_SATA_RBC_EN>,
+ <&pciesys CLK_SATA_PM_EN>;
+ clock-names = "ahb", "axi", "asic", "rbc", "pm";
+ phys = <&u3port1 PHY_TYPE_SATA>;
+ phy-names = "sata-phy";
+ ports-implemented = <0x1>;
+ power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
+ resets = <&pciesys MT7622_SATA_AXI_BUS_RST>,
+ <&pciesys MT7622_SATA_PHY_SW_RST>,
+ <&pciesys MT7622_SATA_PHY_REG_RST>;
+ reset-names = "axi", "sw", "reg";
+ mediatek,phy-mode = <&pciesys>;
+ };
diff --git a/Documentation/devicetree/bindings/ata/apm-xgene.txt b/Documentation/devicetree/bindings/ata/apm-xgene.txt
index a668f0e7d001..02e690a675db 100644
--- a/Documentation/devicetree/bindings/ata/apm-xgene.txt
+++ b/Documentation/devicetree/bindings/ata/apm-xgene.txt
@@ -57,7 +57,6 @@ Example:
<0x0 0x1f227000 0x0 0x1000>;
interrupts = <0x0 0x87 0x4>;
dma-coherent;
- status = "ok";
clocks = <&sataclk 0>;
phys = <&phy2 0>;
phy-names = "sata-phy";
@@ -72,7 +71,6 @@ Example:
<0x0 0x1f237000 0x0 0x1000>;
interrupts = <0x0 0x88 0x4>;
dma-coherent;
- status = "ok";
clocks = <&sataclk 0>;
phys = <&phy3 0>;
phy-names = "sata-phy";
diff --git a/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.txt b/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.txt
new file mode 100644
index 000000000000..1c3d3cc70051
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.txt
@@ -0,0 +1,55 @@
+* Cortina Systems Gemini SATA Bridge
+
+The Gemini SATA bridge in a SoC-internal PATA to SATA bridge that
+takes two Faraday Technology FTIDE010 PATA controllers and bridges
+them in different configurations to two SATA ports.
+
+Required properties:
+- compatible: should be
+ "cortina,gemini-sata-bridge"
+- reg: registers and size for the block
+- resets: phandles to the reset lines for both SATA bridges
+- reset-names: must be "sata0", "sata1"
+- clocks: phandles to the compulsory peripheral clocks
+- clock-names: must be "SATA0_PCLK", "SATA1_PCLK"
+- syscon: a phandle to the global Gemini system controller
+- cortina,gemini-ata-muxmode: tell the desired multiplexing mode for
+ the ATA controller and SATA bridges. Values 0..3:
+ Mode 0: ata0 master <-> sata0
+ ata1 master <-> sata1
+ ata0 slave interface brought out on IDE pads
+ Mode 1: ata0 master <-> sata0
+ ata1 master <-> sata1
+ ata1 slave interface brought out on IDE pads
+ Mode 2: ata1 master <-> sata1
+ ata1 slave <-> sata0
+ ata0 master and slave interfaces brought out
+ on IDE pads
+ Mode 3: ata0 master <-> sata0
+ ata0 slave <-> sata1
+ ata1 master and slave interfaces brought out
+ on IDE pads
+
+Optional boolean properties:
+- cortina,gemini-enable-ide-pins: enables the PATA to IDE connection.
+ The muxmode setting decides whether ATA0 or ATA1 is brought out,
+ and whether master, slave or both interfaces get brought out.
+- cortina,gemini-enable-sata-bridge: enables the PATA to SATA bridge
+ inside the Gemnini SoC. The Muxmode decides what PATA blocks will
+ be muxed out and how.
+
+Example:
+
+sata: sata@46000000 {
+ compatible = "cortina,gemini-sata-bridge";
+ reg = <0x46000000 0x100>;
+ resets = <&rcon 26>, <&rcon 27>;
+ reset-names = "sata0", "sata1";
+ clocks = <&gcc GEMINI_CLK_GATE_SATA0>,
+ <&gcc GEMINI_CLK_GATE_SATA1>;
+ clock-names = "SATA0_PCLK", "SATA1_PCLK";
+ syscon = <&syscon>;
+ cortina,gemini-ata-muxmode = <3>;
+ cortina,gemini-enable-ide-pins;
+ cortina,gemini-enable-sata-bridge;
+};
diff --git a/Documentation/devicetree/bindings/ata/faraday,ftide010.txt b/Documentation/devicetree/bindings/ata/faraday,ftide010.txt
new file mode 100644
index 000000000000..a0c64a29104d
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/faraday,ftide010.txt
@@ -0,0 +1,38 @@
+* Faraday Technology FTIDE010 PATA controller
+
+This controller is the first Faraday IDE interface block, used in the
+StorLink SL2312 and SL3516, later known as the Cortina Systems Gemini
+platform. The controller can do PIO modes 0 through 4, Multi-word DMA
+(MWDM)modes 0 through 2 and Ultra DMA modes 0 through 6.
+
+On the Gemini platform, this PATA block is accompanied by a PATA to
+SATA bridge in order to support SATA. This is why a phandle to that
+controller is compulsory on that platform.
+
+The timing properties are unique per-SoC, not per-board.
+
+Required properties:
+- compatible: should be one of
+ "cortina,gemini-pata", "faraday,ftide010"
+ "faraday,ftide010"
+- interrupts: interrupt for the block
+- reg: registers and size for the block
+
+Optional properties:
+- clocks: a SoC clock running the peripheral.
+- clock-names: should be set to "PCLK" for the peripheral clock.
+
+Required properties for "cortina,gemini-pata" compatible:
+- sata: a phande to the Gemini PATA to SATA bridge, see
+ cortina,gemini-sata-bridge.txt for details.
+
+Example:
+
+ata@63000000 {
+ compatible = "cortina,gemini-pata", "faraday,ftide010";
+ reg = <0x63000000 0x100>;
+ interrupts = <4 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&gcc GEMINI_CLK_GATE_IDE>;
+ clock-names = "PCLK";
+ sata = <&sata>;
+};
diff --git a/Documentation/devicetree/bindings/ata/imx-pata.txt b/Documentation/devicetree/bindings/ata/imx-pata.txt
index e38d73414b0d..f1172f00188a 100644
--- a/Documentation/devicetree/bindings/ata/imx-pata.txt
+++ b/Documentation/devicetree/bindings/ata/imx-pata.txt
@@ -13,5 +13,4 @@ Example:
reg = <0x83fe0000 0x4000>;
interrupts = <70>;
clocks = <&clks 161>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/ata/sata_rcar.txt b/Documentation/devicetree/bindings/ata/sata_rcar.txt
index 0764f9ab63dc..e20eac7a3087 100644
--- a/Documentation/devicetree/bindings/ata/sata_rcar.txt
+++ b/Documentation/devicetree/bindings/ata/sata_rcar.txt
@@ -1,14 +1,22 @@
* Renesas R-Car SATA
Required properties:
-- compatible : should contain one of the following:
+- compatible : should contain one or more of the following:
- "renesas,sata-r8a7779" for R-Car H1
- ("renesas,rcar-sata" is deprecated)
- "renesas,sata-r8a7790-es1" for R-Car H2 ES1
- "renesas,sata-r8a7790" for R-Car H2 other than ES1
- "renesas,sata-r8a7791" for R-Car M2-W
- "renesas,sata-r8a7793" for R-Car M2-N
- "renesas,sata-r8a7795" for R-Car H3
+ - "renesas,rcar-gen2-sata" for a generic R-Car Gen2 compatible device
+ - "renesas,rcar-gen3-sata" for a generic R-Car Gen3 compatible device
+ - "renesas,rcar-sata" is deprecated
+
+ When compatible with the generic version nodes
+ must list the SoC-specific version corresponding
+ to the platform first followed by the generic
+ version.
+
- reg : address and length of the SATA registers;
- interrupts : must consist of one interrupt specifier.
- clocks : must contain a reference to the functional clock.
@@ -16,7 +24,7 @@ Required properties:
Example:
sata0: sata@ee300000 {
- compatible = "renesas,sata-r8a7791";
+ compatible = "renesas,sata-r8a7791", "renesas,rcar-gen2-sata";
reg = <0 0xee300000 0 0x2000>;
interrupt-parent = <&gic>;
interrupts = <0 105 IRQ_TYPE_LEVEL_HIGH>;
diff --git a/Documentation/devicetree/bindings/bus/brcm,gisb-arb.txt b/Documentation/devicetree/bindings/bus/brcm,gisb-arb.txt
index 1eceefb20f01..8a6c3c2e58fe 100644
--- a/Documentation/devicetree/bindings/bus/brcm,gisb-arb.txt
+++ b/Documentation/devicetree/bindings/bus/brcm,gisb-arb.txt
@@ -3,7 +3,8 @@ Broadcom GISB bus Arbiter controller
Required properties:
- compatible:
- "brcm,gisb-arb" or "brcm,bcm7445-gisb-arb" for 28nm chips
+ "brcm,bcm7278-gisb-arb" for V7 28nm chips
+ "brcm,gisb-arb" or "brcm,bcm7445-gisb-arb" for other 28nm chips
"brcm,bcm7435-gisb-arb" for newer 40nm chips
"brcm,bcm7400-gisb-arb" for older 40nm chips and all 65nm chips
"brcm,bcm7038-gisb-arb" for 130nm chips
diff --git a/Documentation/devicetree/bindings/bus/mvebu-mbus.txt b/Documentation/devicetree/bindings/bus/mvebu-mbus.txt
index fa6cde41b460..f2ab7fd013bd 100644
--- a/Documentation/devicetree/bindings/bus/mvebu-mbus.txt
+++ b/Documentation/devicetree/bindings/bus/mvebu-mbus.txt
@@ -227,7 +227,6 @@ See the example below, where a more complete device tree is shown:
};
devbus-bootcs {
- status = "okay";
ranges = <0 MBUS_ID(0x01, 0x2f) 0 0x8000000>;
/* NOR */
@@ -240,7 +239,6 @@ See the example below, where a more complete device tree is shown:
pcie-controller {
compatible = "marvell,armada-xp-pcie";
- status = "okay";
device_type = "pci";
#address-cells = <3>;
@@ -258,7 +256,6 @@ See the example below, where a more complete device tree is shown:
pcie@1,0 {
/* Port 0, Lane 0 */
- status = "okay";
};
};
diff --git a/Documentation/devicetree/bindings/bus/nvidia,tegra20-gmi.txt b/Documentation/devicetree/bindings/bus/nvidia,tegra20-gmi.txt
index 83b0e54f727c..3e21eb822811 100644
--- a/Documentation/devicetree/bindings/bus/nvidia,tegra20-gmi.txt
+++ b/Documentation/devicetree/bindings/bus/nvidia,tegra20-gmi.txt
@@ -84,7 +84,6 @@ gmi@70090000 {
reset-names = "gmi";
ranges = <4 0 0xd0000000 0xfffffff>;
- status = "okay";
bus@4,0 {
compatible = "simple-bus";
@@ -121,7 +120,6 @@ gmi@70090000 {
reset-names = "gmi";
ranges = <4 0 0xd0000000 0xfffffff>;
- status = "okay";
can@4,0 {
reg = <4 0 0x100>;
diff --git a/Documentation/devicetree/bindings/bus/nvidia,tegra210-aconnect.txt b/Documentation/devicetree/bindings/bus/nvidia,tegra210-aconnect.txt
index 7ff13be1750b..3108d03802ee 100644
--- a/Documentation/devicetree/bindings/bus/nvidia,tegra210-aconnect.txt
+++ b/Documentation/devicetree/bindings/bus/nvidia,tegra210-aconnect.txt
@@ -33,7 +33,6 @@ Example:
#size-cells = <1>;
ranges = <0x702c0000 0x0 0x702c0000 0x00040000>;
- status = "disabled";
child1 {
...
diff --git a/Documentation/devicetree/bindings/bus/simple-pm-bus.txt b/Documentation/devicetree/bindings/bus/simple-pm-bus.txt
index d032237512c2..6f15037131ed 100644
--- a/Documentation/devicetree/bindings/bus/simple-pm-bus.txt
+++ b/Documentation/devicetree/bindings/bus/simple-pm-bus.txt
@@ -10,7 +10,7 @@ enabled for child devices connected to the bus (either on-SoC or externally)
to function.
While "simple-pm-bus" follows the "simple-bus" set of properties, as specified
-in ePAPR, it is not an extension of "simple-bus".
+in the Devicetree Specification, it is not an extension of "simple-bus".
Required properties:
diff --git a/Documentation/devicetree/bindings/chosen.txt b/Documentation/devicetree/bindings/chosen.txt
index b5e39af4ddc0..e3b13ea7d2ae 100644
--- a/Documentation/devicetree/bindings/chosen.txt
+++ b/Documentation/devicetree/bindings/chosen.txt
@@ -5,12 +5,35 @@ The chosen node does not represent a real device, but serves as a place
for passing data between firmware and the operating system, like boot
arguments. Data in the chosen node does not represent the hardware.
+The following properties are recognized:
-stdout-path property
---------------------
+
+kaslr-seed
+-----------
+
+This property is used when booting with CONFIG_RANDOMIZE_BASE as the
+entropy used to randomize the kernel image base address location. Since
+it is used directly, this value is intended only for KASLR, and should
+not be used for other purposes (as it may leak information about KASLR
+offsets). It is parsed as a u64 value, e.g.
+
+/ {
+ chosen {
+ kaslr-seed = <0xfeedbeef 0xc0def00d>;
+ };
+};
+
+Note that if this property is set from UEFI (or a bootloader in EFI
+mode) when EFI_RNG_PROTOCOL is supported, it will be overwritten by
+the Linux EFI stub (which will populate the property itself, using
+EFI_RNG_PROTOCOL).
+
+stdout-path
+-----------
Device trees may specify the device to be used for boot console output
-with a stdout-path property under /chosen, as described in ePAPR, e.g.
+with a stdout-path property under /chosen, as described in the Devicetree
+Specification, e.g.
/ {
chosen {
diff --git a/Documentation/devicetree/bindings/clock/alphascale,acc.txt b/Documentation/devicetree/bindings/clock/alphascale,acc.txt
index 62e67e883e76..b3205b21c9d0 100644
--- a/Documentation/devicetree/bindings/clock/alphascale,acc.txt
+++ b/Documentation/devicetree/bindings/clock/alphascale,acc.txt
@@ -102,7 +102,6 @@ uart4: serial@80010000 {
reg = <0x80010000 0x4000>;
clocks = <&acc CLKID_SYS_UART4>, <&acc CLKID_AHB_UART4>;
interrupts = <19>;
- status = "disabled";
};
Clock consumer with only one, _AHB_ sink.
diff --git a/Documentation/devicetree/bindings/clock/amlogic,gxbb-aoclkc.txt b/Documentation/devicetree/bindings/clock/amlogic,gxbb-aoclkc.txt
index a55d31b48d6e..786dc39ca904 100644
--- a/Documentation/devicetree/bindings/clock/amlogic,gxbb-aoclkc.txt
+++ b/Documentation/devicetree/bindings/clock/amlogic,gxbb-aoclkc.txt
@@ -5,9 +5,11 @@ controllers within the Always-On part of the SoC.
Required Properties:
-- compatible: should be "amlogic,gxbb-aoclkc"
-- reg: physical base address of the clock controller and length of memory
- mapped region.
+- compatible: value should be different for each SoC family as :
+ - GXBB (S905) : "amlogic,meson-gxbb-aoclkc"
+ - GXL (S905X, S905D) : "amlogic,meson-gxl-aoclkc"
+ - GXM (S912) : "amlogic,meson-gxm-aoclkc"
+ followed by the common "amlogic,meson-gx-aoclkc"
- #clock-cells: should be 1.
@@ -23,14 +25,22 @@ to specify the reset which they consume. All available resets are defined as
preprocessor macros in the dt-bindings/reset/gxbb-aoclkc.h header and can be
used in device tree sources.
+Parent node should have the following properties :
+- compatible: "amlogic,meson-gx-ao-sysctrl", "syscon", "simple-mfd"
+- reg: base address and size of the AO system control register space.
+
Example: AO Clock controller node:
- clkc_AO: clock-controller@040 {
- compatible = "amlogic,gxbb-aoclkc";
- reg = <0x0 0x040 0x0 0x4>;
+ao_sysctrl: sys-ctrl@0 {
+ compatible = "amlogic,meson-gx-ao-sysctrl", "syscon", "simple-mfd";
+ reg = <0x0 0x0 0x0 0x100>;
+
+ clkc_AO: clock-controller {
+ compatible = "amlogic,meson-gxbb-aoclkc", "amlogic,meson-gx-aoclkc";
#clock-cells = <1>;
#reset-cells = <1>;
};
+};
Example: UART controller node that consumes the clock and reset generated
by the clock controller:
@@ -41,5 +51,4 @@ Example: UART controller node that consumes the clock and reset generated
interrupts = <0 90 1>;
clocks = <&clkc_AO CLKID_AO_UART1>;
resets = <&clkc_AO RESET_AO_UART1>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt b/Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt
index a09d627b5508..924040769186 100644
--- a/Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt
+++ b/Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt
@@ -33,5 +33,4 @@ Example: UART controller node that consumes the clock generated by the clock
reg = <0xc81004c0 0x14>;
interrupts = <0 90 1>;
clocks = <&clkc CLKID_CLK81>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/amlogic,meson8b-clkc.txt b/Documentation/devicetree/bindings/clock/amlogic,meson8b-clkc.txt
index 2b7b3fa588d7..b455c5aa9139 100644
--- a/Documentation/devicetree/bindings/clock/amlogic,meson8b-clkc.txt
+++ b/Documentation/devicetree/bindings/clock/amlogic,meson8b-clkc.txt
@@ -1,11 +1,14 @@
-* Amlogic Meson8b Clock and Reset Unit
+* Amlogic Meson8, Meson8b and Meson8m2 Clock and Reset Unit
-The Amlogic Meson8b clock controller generates and supplies clock to various
-controllers within the SoC.
+The Amlogic Meson8 / Meson8b / Meson8m2 clock controller generates and
+supplies clock to various controllers within the SoC.
Required Properties:
-- compatible: should be "amlogic,meson8b-clkc"
+- compatible: must be one of:
+ - "amlogic,meson8-clkc" for Meson8 (S802) SoCs
+ - "amlogic,meson8b-clkc" for Meson8 (S805) SoCs
+ - "amlogic,meson8m2-clkc" for Meson8m2 (S812) SoCs
- reg: it must be composed by two tuples:
0) physical base address of the xtal register and length of memory
mapped region.
@@ -13,18 +16,25 @@ Required Properties:
mapped region.
- #clock-cells: should be 1.
+- #reset-cells: should be 1.
Each clock is assigned an identifier and client nodes can use this identifier
to specify the clock which they consume. All available clocks are defined as
preprocessor macros in the dt-bindings/clock/meson8b-clkc.h header and can be
used in device tree sources.
+Similarly a preprocessor macro for each reset line is defined in
+dt-bindings/reset/amlogic,meson8b-clkc-reset.h (which can be used from the
+device tree sources).
+
+
Example: Clock controller node:
clkc: clock-controller@c1104000 {
- #clock-cells = <1>;
compatible = "amlogic,meson8b-clkc";
reg = <0xc1108000 0x4>, <0xc1104000 0x460>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
};
@@ -36,5 +46,4 @@ Example: UART controller node that consumes the clock generated by the clock
reg = <0xc81004c0 0x14>;
interrupts = <0 90 1>;
clocks = <&clkc CLKID_CLK81>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/at91-clock.txt b/Documentation/devicetree/bindings/clock/at91-clock.txt
index 5f3ad65daf69..51c259a92d02 100644
--- a/Documentation/devicetree/bindings/clock/at91-clock.txt
+++ b/Documentation/devicetree/bindings/clock/at91-clock.txt
@@ -81,6 +81,16 @@ Required properties:
"atmel,sama5d2-clk-generated":
at91 generated clock
+ "atmel,sama5d2-clk-audio-pll-frac":
+ at91 audio fractional pll
+
+ "atmel,sama5d2-clk-audio-pll-pad":
+ at91 audio pll CLK_AUDIO output pin
+
+ "atmel,sama5d2-clk-audio-pll-pmc"
+ at91 audio pll output on AUDIOPLLCLK that feeds the PMC
+ and can be used by peripheral clock or generic clock
+
Required properties for SCKC node:
- reg : defines the IO memory reserved for the SCKC.
- #size-cells : shall be 0 (reg is used to encode clk id).
diff --git a/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt b/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt
index 6f66e9aa354c..f2c5f0e4a363 100644
--- a/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt
+++ b/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt
@@ -219,3 +219,79 @@ BCM63138
--------
PLL and leaf clock compatible strings for BCM63138 are:
"brcm,bcm63138-armpll"
+
+Stingray
+-----------
+PLL and leaf clock compatible strings for Stingray are:
+ "brcm,sr-genpll0"
+ "brcm,sr-genpll1"
+ "brcm,sr-genpll2"
+ "brcm,sr-genpll3"
+ "brcm,sr-genpll4"
+ "brcm,sr-genpll5"
+ "brcm,sr-genpll6"
+
+ "brcm,sr-lcpll0"
+ "brcm,sr-lcpll1"
+ "brcm,sr-lcpll-pcie"
+
+
+The following table defines the set of PLL/clock index and ID for Stingray.
+These clock IDs are defined in:
+ "include/dt-bindings/clock/bcm-sr.h"
+
+ Clock Source Index ID
+ --- ----- ----- ---------
+ crystal N/A N/A N/A
+ crmu_ref25m crystal N/A N/A
+
+ genpll0 crystal 0 BCM_SR_GENPLL0
+ clk_125m genpll0 1 BCM_SR_GENPLL0_125M_CLK
+ clk_scr genpll0 2 BCM_SR_GENPLL0_SCR_CLK
+ clk_250 genpll0 3 BCM_SR_GENPLL0_250M_CLK
+ clk_pcie_axi genpll0 4 BCM_SR_GENPLL0_PCIE_AXI_CLK
+ clk_paxc_axi_x2 genpll0 5 BCM_SR_GENPLL0_PAXC_AXI_X2_CLK
+ clk_paxc_axi genpll0 6 BCM_SR_GENPLL0_PAXC_AXI_CLK
+
+ genpll1 crystal 0 BCM_SR_GENPLL1
+ clk_pcie_tl genpll1 1 BCM_SR_GENPLL1_PCIE_TL_CLK
+ clk_mhb_apb genpll1 2 BCM_SR_GENPLL1_MHB_APB_CLK
+
+ genpll2 crystal 0 BCM_SR_GENPLL2
+ clk_nic genpll2 1 BCM_SR_GENPLL2_NIC_CLK
+ clk_ts_500_ref genpll2 2 BCM_SR_GENPLL2_TS_500_REF_CLK
+ clk_125_nitro genpll2 3 BCM_SR_GENPLL2_125_NITRO_CLK
+ clk_chimp genpll2 4 BCM_SR_GENPLL2_CHIMP_CLK
+ clk_nic_flash genpll2 5 BCM_SR_GENPLL2_NIC_FLASH
+
+ genpll3 crystal 0 BCM_SR_GENPLL3
+ clk_hsls genpll3 1 BCM_SR_GENPLL3_HSLS_CLK
+ clk_sdio genpll3 2 BCM_SR_GENPLL3_SDIO_CLK
+
+ genpll4 crystal 0 BCM_SR_GENPLL4
+ ccn genpll4 1 BCM_SR_GENPLL4_CCN_CLK
+ clk_tpiu_pll genpll4 2 BCM_SR_GENPLL4_TPIU_PLL_CLK
+ noc_clk genpll4 3 BCM_SR_GENPLL4_NOC_CLK
+ clk_chclk_fs4 genpll4 4 BCM_SR_GENPLL4_CHCLK_FS4_CLK
+ clk_bridge_fscpu genpll4 5 BCM_SR_GENPLL4_BRIDGE_FSCPU_CLK
+
+
+ genpll5 crystal 0 BCM_SR_GENPLL5
+ fs4_hf_clk genpll5 1 BCM_SR_GENPLL5_FS4_HF_CLK
+ crypto_ae_clk genpll5 2 BCM_SR_GENPLL5_CRYPTO_AE_CLK
+ raid_ae_clk genpll5 3 BCM_SR_GENPLL5_RAID_AE_CLK
+
+ genpll6 crystal 0 BCM_SR_GENPLL6
+ 48_usb genpll6 1 BCM_SR_GENPLL6_48_USB_CLK
+
+ lcpll0 crystal 0 BCM_SR_LCPLL0
+ clk_sata_refp lcpll0 1 BCM_SR_LCPLL0_SATA_REFP_CLK
+ clk_sata_refn lcpll0 2 BCM_SR_LCPLL0_SATA_REFN_CLK
+ clk_usb_ref lcpll0 3 BCM_SR_LCPLL0_USB_REF_CLK
+ sata_refpn lcpll0 3 BCM_SR_LCPLL0_SATA_REFPN_CLK
+
+ lcpll1 crystal 0 BCM_SR_LCPLL1
+ wan lcpll1 1 BCM_SR_LCPLL0_WAN_CLK
+
+ lcpll_pcie crystal 0 BCM_SR_LCPLL_PCIE
+ pcie_phy_ref lcpll1 1 BCM_SR_LCPLL_PCIE_PHY_REF_CLK
diff --git a/Documentation/devicetree/bindings/clock/brcm,kona-ccu.txt b/Documentation/devicetree/bindings/clock/brcm,kona-ccu.txt
index 5286e260fcae..8e5a7d868557 100644
--- a/Documentation/devicetree/bindings/clock/brcm,kona-ccu.txt
+++ b/Documentation/devicetree/bindings/clock/brcm,kona-ccu.txt
@@ -46,7 +46,6 @@ Device tree example:
uart@3e002000 {
compatible = "brcm,bcm11351-dw-apb-uart", "snps,dw-apb-uart";
- status = "disabled";
reg = <0x3e002000 0x1000>;
clocks = <&slave_ccu BCM281XX_SLAVE_CCU_UARTB3>;
interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
diff --git a/Documentation/devicetree/bindings/clock/exynos5433-clock.txt b/Documentation/devicetree/bindings/clock/exynos5433-clock.txt
index 1dc80f8811fe..fe885abc9cb4 100644
--- a/Documentation/devicetree/bindings/clock/exynos5433-clock.txt
+++ b/Documentation/devicetree/bindings/clock/exynos5433-clock.txt
@@ -465,5 +465,4 @@ Example 3: UART controller node that consumes the clock generated by the clock
clock-names = "uart", "clk_uart_baud0";
pinctrl-names = "default";
pinctrl-0 = <&uart0_bus>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/hi3660-clock.txt b/Documentation/devicetree/bindings/clock/hi3660-clock.txt
index cc9b86c35758..0035a7ecaf20 100644
--- a/Documentation/devicetree/bindings/clock/hi3660-clock.txt
+++ b/Documentation/devicetree/bindings/clock/hi3660-clock.txt
@@ -38,5 +38,4 @@ Examples:
clocks = <&crg_ctrl HI3660_CLK_MUX_UART0>,
<&crg_ctrl HI3660_PCLK>;
clock-names = "uartclk", "apb_pclk";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/hi6220-clock.txt b/Documentation/devicetree/bindings/clock/hi6220-clock.txt
index e4d5feaebc29..ef3deb7b86ea 100644
--- a/Documentation/devicetree/bindings/clock/hi6220-clock.txt
+++ b/Documentation/devicetree/bindings/clock/hi6220-clock.txt
@@ -11,6 +11,7 @@ Required Properties:
- compatible: the compatible should be one of the following strings to
indicate the clock controller functionality.
+ - "hisilicon,hi6220-acpu-sctrl"
- "hisilicon,hi6220-aoctrl"
- "hisilicon,hi6220-sysctrl"
- "hisilicon,hi6220-mediactrl"
diff --git a/Documentation/devicetree/bindings/clock/hix5hd2-clock.txt b/Documentation/devicetree/bindings/clock/hix5hd2-clock.txt
index 7894a64887cb..4733e58e491b 100644
--- a/Documentation/devicetree/bindings/clock/hix5hd2-clock.txt
+++ b/Documentation/devicetree/bindings/clock/hix5hd2-clock.txt
@@ -27,5 +27,4 @@ Examples:
interrupts = <0 49 4>;
clocks = <&clock HIX5HD2_FIXED_83M>;
clock-names = "apb_pclk";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/idt,versaclock5.txt b/Documentation/devicetree/bindings/clock/idt,versaclock5.txt
index 53d7e50ed875..05a245c9df08 100644
--- a/Documentation/devicetree/bindings/clock/idt,versaclock5.txt
+++ b/Documentation/devicetree/bindings/clock/idt,versaclock5.txt
@@ -1,24 +1,32 @@
-Binding for IDT VersaClock5 programmable i2c clock generator.
+Binding for IDT VersaClock 5,6 programmable i2c clock generators.
-The IDT VersaClock5 are programmable i2c clock generators providing
-from 3 to 12 output clocks.
+The IDT VersaClock 5 and VersaClock 6 are programmable i2c clock
+generators providing from 3 to 12 output clocks.
==I2C device node==
Required properties:
-- compatible: shall be one of "idt,5p49v5923" , "idt,5p49v5933" ,
- "idt,5p49v5935".
+- compatible: shall be one of
+ "idt,5p49v5923"
+ "idt,5p49v5925"
+ "idt,5p49v5933"
+ "idt,5p49v5935"
+ "idt,5p49v6901"
- reg: i2c device address, shall be 0x68 or 0x6a.
- #clock-cells: from common clock binding; shall be set to 1.
- clocks: from common clock binding; list of parent clock handles,
- - 5p49v5923: (required) either or both of XTAL or CLKIN
+ - 5p49v5923 and
+ 5p49v5925 and
+ 5p49v6901: (required) either or both of XTAL or CLKIN
reference clock.
- 5p49v5933 and
- 5p49v5935: (optional) property not present (internal
Xtal used) or CLKIN reference
clock.
- clock-names: from common clock binding; clock input names, can be
- - 5p49v5923: (required) either or both of "xin", "clkin".
+ - 5p49v5923 and
+ 5p49v5925 and
+ 5p49v6901: (required) either or both of "xin", "clkin".
- 5p49v5933 and
- 5p49v5935: (optional) property not present or "clkin".
@@ -37,6 +45,7 @@ clock specifier, the following mapping applies:
1 -- OUT1
2 -- OUT4
+5P49V5925 and
5P49V5935:
0 -- OUT0_SEL_I2CB
1 -- OUT1
@@ -44,6 +53,13 @@ clock specifier, the following mapping applies:
3 -- OUT3
4 -- OUT4
+5P49V6901:
+ 0 -- OUT0_SEL_I2CB
+ 1 -- OUT1
+ 2 -- OUT2
+ 3 -- OUT3
+ 4 -- OUT4
+
==Example==
/* 25MHz reference crystal */
diff --git a/Documentation/devicetree/bindings/clock/img,boston-clock.txt b/Documentation/devicetree/bindings/clock/img,boston-clock.txt
new file mode 100644
index 000000000000..7bc5e9ffb624
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/img,boston-clock.txt
@@ -0,0 +1,31 @@
+Binding for Imagination Technologies MIPS Boston clock sources.
+
+This binding uses the common clock binding[1].
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+The device node must be a child node of the syscon node corresponding to the
+Boston system's platform registers.
+
+Required properties:
+- compatible : Should be "img,boston-clock".
+- #clock-cells : Should be set to 1.
+ Values available for clock consumers can be found in the header file:
+ <dt-bindings/clock/boston-clock.h>
+
+Example:
+
+ system-controller@17ffd000 {
+ compatible = "img,boston-platform-regs", "syscon";
+ reg = <0x17ffd000 0x1000>;
+
+ clk_boston: clock {
+ compatible = "img,boston-clock";
+ #clock-cells = <1>;
+ };
+ };
+
+ uart0: uart@17ffe000 {
+ /* ... */
+ clocks = <&clk_boston BOSTON_CLK_SYS>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/imx21-clock.txt b/Documentation/devicetree/bindings/clock/imx21-clock.txt
index c3b0db437c48..806f63d628bd 100644
--- a/Documentation/devicetree/bindings/clock/imx21-clock.txt
+++ b/Documentation/devicetree/bindings/clock/imx21-clock.txt
@@ -24,5 +24,4 @@ Examples:
clocks = <&clks IMX21_CLK_UART1_IPG_GATE>,
<&clks IMX21_CLK_PER1>;
clock-names = "ipg", "per";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/imx23-clock.txt b/Documentation/devicetree/bindings/clock/imx23-clock.txt
index 5083c0b834b2..8385348d3bd9 100644
--- a/Documentation/devicetree/bindings/clock/imx23-clock.txt
+++ b/Documentation/devicetree/bindings/clock/imx23-clock.txt
@@ -67,5 +67,4 @@ auart0: serial@8006c000 {
reg = <0x8006c000 0x2000>;
interrupts = <24 25 23>;
clocks = <&clks 32>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/imx25-clock.txt b/Documentation/devicetree/bindings/clock/imx25-clock.txt
index ba6b312ff8a5..f8135ea9ca4e 100644
--- a/Documentation/devicetree/bindings/clock/imx25-clock.txt
+++ b/Documentation/devicetree/bindings/clock/imx25-clock.txt
@@ -157,5 +157,4 @@ uart1: serial@43f90000 {
interrupts = <45>;
clocks = <&clks 79>, <&clks 50>;
clock-names = "ipg", "per";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/imx27-clock.txt b/Documentation/devicetree/bindings/clock/imx27-clock.txt
index cc05de9ec393..4c95c048d3b2 100644
--- a/Documentation/devicetree/bindings/clock/imx27-clock.txt
+++ b/Documentation/devicetree/bindings/clock/imx27-clock.txt
@@ -24,5 +24,4 @@ Examples:
clocks = <&clks IMX27_CLK_UART1_IPG_GATE>,
<&clks IMX27_CLK_PER1_GATE>;
clock-names = "ipg", "per";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/imx28-clock.txt b/Documentation/devicetree/bindings/clock/imx28-clock.txt
index e6587af62ff0..d84a37d2885f 100644
--- a/Documentation/devicetree/bindings/clock/imx28-clock.txt
+++ b/Documentation/devicetree/bindings/clock/imx28-clock.txt
@@ -90,5 +90,4 @@ auart0: serial@8006a000 {
reg = <0x8006a000 0x2000>;
interrupts = <112 70 71>;
clocks = <&clks 45>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/imx31-clock.txt b/Documentation/devicetree/bindings/clock/imx31-clock.txt
index 8163d565f697..0a291090e562 100644
--- a/Documentation/devicetree/bindings/clock/imx31-clock.txt
+++ b/Documentation/devicetree/bindings/clock/imx31-clock.txt
@@ -87,5 +87,4 @@ uart1: serial@43f90000 {
interrupts = <45>;
clocks = <&clks 10>, <&clks 30>;
clock-names = "ipg", "per";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/imx5-clock.txt b/Documentation/devicetree/bindings/clock/imx5-clock.txt
index cadc4d29ada6..a24ca9e582d2 100644
--- a/Documentation/devicetree/bindings/clock/imx5-clock.txt
+++ b/Documentation/devicetree/bindings/clock/imx5-clock.txt
@@ -25,5 +25,4 @@ can1: can@53fc8000 {
interrupts = <82>;
clocks = <&clks IMX5_CLK_CAN1_IPG_GATE>, <&clks IMX5_CLK_CAN1_SERIAL_GATE>;
clock-names = "ipg", "per";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/imx6q-clock.txt b/Documentation/devicetree/bindings/clock/imx6q-clock.txt
index 9252912a5b0e..aa0a4d423ef5 100644
--- a/Documentation/devicetree/bindings/clock/imx6q-clock.txt
+++ b/Documentation/devicetree/bindings/clock/imx6q-clock.txt
@@ -27,5 +27,4 @@ uart1: serial@02020000 {
interrupts = <0 26 0x04>;
clocks = <&clks IMX6QDL_CLK_UART_IPG>, <&clks IMX6QDL_CLK_UART_SERIAL>;
clock-names = "ipg", "per";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/mt8173-cpu-dvfs.txt b/Documentation/devicetree/bindings/clock/mt8173-cpu-dvfs.txt
deleted file mode 100644
index 52b457c23eed..000000000000
--- a/Documentation/devicetree/bindings/clock/mt8173-cpu-dvfs.txt
+++ /dev/null
@@ -1,83 +0,0 @@
-Device Tree Clock bindins for CPU DVFS of Mediatek MT8173 SoC
-
-Required properties:
-- clocks: A list of phandle + clock-specifier pairs for the clocks listed in clock names.
-- clock-names: Should contain the following:
- "cpu" - The multiplexer for clock input of CPU cluster.
- "intermediate" - A parent of "cpu" clock which is used as "intermediate" clock
- source (usually MAINPLL) when the original CPU PLL is under
- transition and not stable yet.
- Please refer to Documentation/devicetree/bindings/clk/clock-bindings.txt for
- generic clock consumer properties.
-- proc-supply: Regulator for Vproc of CPU cluster.
-
-Optional properties:
-- sram-supply: Regulator for Vsram of CPU cluster. When present, the cpufreq driver
- needs to do "voltage tracking" to step by step scale up/down Vproc and
- Vsram to fit SoC specific needs. When absent, the voltage scaling
- flow is handled by hardware, hence no software "voltage tracking" is
- needed.
-
-Example:
---------
- cpu0: cpu@0 {
- device_type = "cpu";
- compatible = "arm,cortex-a53";
- reg = <0x000>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_SLEEP_0>;
- clocks = <&infracfg CLK_INFRA_CA53SEL>,
- <&apmixedsys CLK_APMIXED_MAINPLL>;
- clock-names = "cpu", "intermediate";
- };
-
- cpu1: cpu@1 {
- device_type = "cpu";
- compatible = "arm,cortex-a53";
- reg = <0x001>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_SLEEP_0>;
- clocks = <&infracfg CLK_INFRA_CA53SEL>,
- <&apmixedsys CLK_APMIXED_MAINPLL>;
- clock-names = "cpu", "intermediate";
- };
-
- cpu2: cpu@100 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x100>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_SLEEP_0>;
- clocks = <&infracfg CLK_INFRA_CA57SEL>,
- <&apmixedsys CLK_APMIXED_MAINPLL>;
- clock-names = "cpu", "intermediate";
- };
-
- cpu3: cpu@101 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x101>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_SLEEP_0>;
- clocks = <&infracfg CLK_INFRA_CA57SEL>,
- <&apmixedsys CLK_APMIXED_MAINPLL>;
- clock-names = "cpu", "intermediate";
- };
-
- &cpu0 {
- proc-supply = <&mt6397_vpca15_reg>;
- };
-
- &cpu1 {
- proc-supply = <&mt6397_vpca15_reg>;
- };
-
- &cpu2 {
- proc-supply = <&da9211_vcpu_reg>;
- sram-supply = <&mt6397_vsramca7_reg>;
- };
-
- &cpu3 {
- proc-supply = <&da9211_vcpu_reg>;
- sram-supply = <&mt6397_vsramca7_reg>;
- };
diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra124-dfll.txt b/Documentation/devicetree/bindings/clock/nvidia,tegra124-dfll.txt
index 63f9d8277d48..dff236f524a7 100644
--- a/Documentation/devicetree/bindings/clock/nvidia,tegra124-dfll.txt
+++ b/Documentation/devicetree/bindings/clock/nvidia,tegra124-dfll.txt
@@ -66,7 +66,6 @@ clock@70110000 {
#clock-cells = <0>;
clock-output-names = "dfllCPU_out";
vdd-cpu-supply = <&vdd_cpu>;
- status = "okay";
nvidia,sample-rate = <12500>;
nvidia,droop-ctrl = <0x00000f00>;
diff --git a/Documentation/devicetree/bindings/clock/pxa-clock.txt b/Documentation/devicetree/bindings/clock/pxa-clock.txt
index 4b4a9024bd99..8f67239411fe 100644
--- a/Documentation/devicetree/bindings/clock/pxa-clock.txt
+++ b/Documentation/devicetree/bindings/clock/pxa-clock.txt
@@ -12,5 +12,4 @@ Examples:
pxa2xx_clks: pxa2xx_clks@41300004 {
compatible = "marvell,pxa-clocks";
#clock-cells = <1>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc.txt b/Documentation/devicetree/bindings/clock/qcom,gcc.txt
index 5b4dfc1ea54f..551d03be9665 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc.txt
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc.txt
@@ -8,6 +8,7 @@ Required properties :
"qcom,gcc-apq8084"
"qcom,gcc-ipq8064"
"qcom,gcc-ipq4019"
+ "qcom,gcc-ipq8074"
"qcom,gcc-msm8660"
"qcom,gcc-msm8916"
"qcom,gcc-msm8960"
diff --git a/Documentation/devicetree/bindings/clock/qoriq-clock.txt b/Documentation/devicetree/bindings/clock/qoriq-clock.txt
index 6ed469c66b32..6498e1fdbb33 100644
--- a/Documentation/devicetree/bindings/clock/qoriq-clock.txt
+++ b/Documentation/devicetree/bindings/clock/qoriq-clock.txt
@@ -57,6 +57,11 @@ Optional properties:
- clocks: If clock-frequency is not specified, sysclk may be provided
as an input clock. Either clock-frequency or clocks must be
provided.
+ A second input clock, called "coreclk", may be provided if
+ core PLLs are based on a different input clock from the
+ platform PLL.
+- clock-names: Required if a coreclk is present. Valid names are
+ "sysclk" and "coreclk".
2. Clock Provider
@@ -73,6 +78,7 @@ second cell is the clock index for the specified type.
2 hwaccel index (n in CLKCGnHWACSR)
3 fman 0 for fm1, 1 for fm2
4 platform pll 0=pll, 1=pll/2, 2=pll/3, 3=pll/4
+ 5 coreclk must be 0
3. Example
diff --git a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt
index f4f944d81308..316e13686568 100644
--- a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt
+++ b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt
@@ -15,8 +15,14 @@ Required Properties:
- compatible: Must be one of:
- "renesas,r8a7743-cpg-mssr" for the r8a7743 SoC (RZ/G1M)
- "renesas,r8a7745-cpg-mssr" for the r8a7745 SoC (RZ/G1E)
+ - "renesas,r8a7790-cpg-mssr" for the r8a7790 SoC (R-Car H2)
+ - "renesas,r8a7791-cpg-mssr" for the r8a7791 SoC (R-Car M2-W)
+ - "renesas,r8a7792-cpg-mssr" for the r8a7792 SoC (R-Car V2H)
+ - "renesas,r8a7793-cpg-mssr" for the r8a7793 SoC (R-Car M2-N)
+ - "renesas,r8a7794-cpg-mssr" for the r8a7794 SoC (R-Car E2)
- "renesas,r8a7795-cpg-mssr" for the r8a7795 SoC (R-Car H3)
- "renesas,r8a7796-cpg-mssr" for the r8a7796 SoC (R-Car M3-W)
+ - "renesas,r8a77995-cpg-mssr" for the r8a77995 SoC (R-Car D3)
- reg: Base address and length of the memory resource used by the CPG/MSSR
block
@@ -24,9 +30,10 @@ Required Properties:
- clocks: References to external parent clocks, one entry for each entry in
clock-names
- clock-names: List of external parent clock names. Valid names are:
- - "extal" (r8a7743, r8a7745, r8a7795, r8a7796)
+ - "extal" (r8a7743, r8a7745, r8a7790, r8a7791, r8a7792, r8a7793, r8a7794,
+ r8a7795, r8a7796, r8a77995)
- "extalr" (r8a7795, r8a7796)
- - "usb_extal" (r8a7743, r8a7745)
+ - "usb_extal" (r8a7743, r8a7745, r8a7790, r8a7791, r8a7793, r8a7794)
- #clock-cells: Must be 2
- For CPG core clocks, the two clock specifier cells must be "CPG_CORE"
@@ -75,5 +82,4 @@ Examples
dma-names = "tx", "rx";
power-domains = <&cpg>;
resets = <&cpg 310>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/renesas,r8a7778-cpg-clocks.txt b/Documentation/devicetree/bindings/clock/renesas,r8a7778-cpg-clocks.txt
index e4cdaf1cb333..7cc4c0330b53 100644
--- a/Documentation/devicetree/bindings/clock/renesas,r8a7778-cpg-clocks.txt
+++ b/Documentation/devicetree/bindings/clock/renesas,r8a7778-cpg-clocks.txt
@@ -44,5 +44,4 @@ Examples
interrupts = <0 87 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp3_clks R8A7778_CLK_SDHI0>;
power-domains = <&cpg_clocks>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/renesas,rcar-usb2-clock-sel.txt b/Documentation/devicetree/bindings/clock/renesas,rcar-usb2-clock-sel.txt
new file mode 100644
index 000000000000..e96e085271c1
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/renesas,rcar-usb2-clock-sel.txt
@@ -0,0 +1,55 @@
+* Renesas R-Car USB 2.0 clock selector
+
+This file provides information on what the device node for the R-Car USB 2.0
+clock selector.
+
+If you connect an external clock to the USB_EXTAL pin only, you should set
+the clock rate to "usb_extal" node only.
+If you connect an oscillator to both the USB_XTAL and USB_EXTAL, this module
+is not needed because this is default setting. (Of course, you can set the
+clock rates to both "usb_extal" and "usb_xtal" nodes.
+
+Case 1: An external clock connects to R-Car SoC
+ +----------+ +--- R-Car ---------------------+
+ |External |---|USB_EXTAL ---> all usb channels|
+ |clock | |USB_XTAL |
+ +----------+ +-------------------------------+
+In this case, we need this driver with "usb_extal" clock.
+
+Case 2: An oscillator connects to R-Car SoC
+ +----------+ +--- R-Car ---------------------+
+ |Oscillator|---|USB_EXTAL -+-> all usb channels|
+ | |---|USB_XTAL --+ |
+ +----------+ +-------------------------------+
+In this case, we don't need this selector.
+
+Required properties:
+- compatible: "renesas,r8a7795-rcar-usb2-clock-sel" if the device is a part of
+ an R8A7795 SoC.
+ "renesas,r8a7796-rcar-usb2-clock-sel" if the device if a part of
+ an R8A7796 SoC.
+ "renesas,rcar-gen3-usb2-clock-sel" for a generic R-Car Gen3
+ compatible device.
+
+ When compatible with the generic version, nodes must list the
+ SoC-specific version corresponding to the platform first
+ followed by the generic version.
+
+- reg: offset and length of the USB 2.0 clock selector register block.
+- clocks: A list of phandles and specifier pairs.
+- clock-names: Name of the clocks.
+ - The functional clock must be "ehci_ohci"
+ - The USB_EXTAL clock pin must be "usb_extal"
+ - The USB_XTAL clock pin must be "usb_xtal"
+- #clock-cells: Must be 0
+
+Example (R-Car H3):
+
+ usb2_clksel: clock-controller@e6590630 {
+ compatible = "renesas,r8a77950-rcar-usb2-clock-sel",
+ "renesas,rcar-gen3-usb2-clock-sel";
+ reg = <0 0xe6590630 0 0x02>;
+ clocks = <&cpg CPG_MOD 703>, <&usb_extal>, <&usb_xtal>;
+ clock-names = "ehci_ohci", "usb_extal", "usb_xtal";
+ #clock-cells = <0>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/renesas,rz-cpg-clocks.txt b/Documentation/devicetree/bindings/clock/renesas,rz-cpg-clocks.txt
index bb51a33a1fbf..bb5d942075fb 100644
--- a/Documentation/devicetree/bindings/clock/renesas,rz-cpg-clocks.txt
+++ b/Documentation/devicetree/bindings/clock/renesas,rz-cpg-clocks.txt
@@ -50,5 +50,4 @@ Examples
clocks = <&mstp3_clks R7S72100_CLK_MTU2>;
clock-names = "fck";
power-domains = <&cpg_clocks>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.txt b/Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.txt
new file mode 100644
index 000000000000..6f8744fd301b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.txt
@@ -0,0 +1,58 @@
+* Rockchip RK3126/RK3128 Clock and Reset Unit
+
+The RK3126/RK3128 clock controller generates and supplies clock to various
+controllers within the SoC and also implements a reset controller for SoC
+peripherals.
+
+Required Properties:
+
+- compatible: should be "rockchip,rk3126-cru" or "rockchip,rk3128-cru"
+ "rockchip,rk3126-cru" - controller compatible with RK3126 SoC.
+ "rockchip,rk3128-cru" - controller compatible with RK3128 SoC.
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- #clock-cells: should be 1.
+- #reset-cells: should be 1.
+
+Optional Properties:
+
+- rockchip,grf: phandle to the syscon managing the "general register files"
+ If missing pll rates are not changeable, due to the missing pll lock status.
+
+Each clock is assigned an identifier and client nodes can use this identifier
+to specify the clock which they consume. All available clocks are defined as
+preprocessor macros in the dt-bindings/clock/rk3128-cru.h headers and can be
+used in device tree sources. Similar macros exist for the reset sources in
+these files.
+
+External clocks:
+
+There are several clocks that are generated outside the SoC. It is expected
+that they are defined using standard clock bindings with following
+clock-output-names:
+ - "xin24m" - crystal input - required,
+ - "ext_i2s" - external I2S clock - optional,
+ - "gmac_clkin" - external GMAC clock - optional
+
+Example: Clock controller node:
+
+ cru: cru@20000000 {
+ compatible = "rockchip,rk3128-cru";
+ reg = <0x20000000 0x1000>;
+ rockchip,grf = <&grf>;
+
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+Example: UART controller node that consumes the clock generated by the clock
+ controller:
+
+ uart2: serial@20068000 {
+ compatible = "rockchip,serial";
+ reg = <0x20068000 0x100>;
+ interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>;
+ clock-frequency = <24000000>;
+ clocks = <&cru SCLK_UART2>, <&cru PCLK_UART2>;
+ clock-names = "sclk_uart", "pclk_uart";
+ };
diff --git a/Documentation/devicetree/bindings/clock/samsung,s3c2410-clock.txt b/Documentation/devicetree/bindings/clock/samsung,s3c2410-clock.txt
index 822505e715ae..2632d3f13004 100644
--- a/Documentation/devicetree/bindings/clock/samsung,s3c2410-clock.txt
+++ b/Documentation/devicetree/bindings/clock/samsung,s3c2410-clock.txt
@@ -46,5 +46,4 @@ Example: UART controller node that consumes the clock generated by the clock
interrupts = <1 23 3 4>, <1 23 4 4>;
clock-names = "uart", "clk_uart_baud2";
clocks = <&clocks PCLK_UART0>, <&clocks PCLK_UART0>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/samsung,s3c2412-clock.txt b/Documentation/devicetree/bindings/clock/samsung,s3c2412-clock.txt
index 2b430960ba47..21a8c23e658f 100644
--- a/Documentation/devicetree/bindings/clock/samsung,s3c2412-clock.txt
+++ b/Documentation/devicetree/bindings/clock/samsung,s3c2412-clock.txt
@@ -46,5 +46,4 @@ Example: UART controller node that consumes the clock generated by the clock
clock-names = "uart", "clk_uart_baud2", "clk_uart_baud3";
clocks = <&clocks PCLK_UART0>, <&clocks PCLK_UART0>,
<&clocks SCLK_UART>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/samsung,s3c2443-clock.txt b/Documentation/devicetree/bindings/clock/samsung,s3c2443-clock.txt
index e67bb05478af..985c0f574e9a 100644
--- a/Documentation/devicetree/bindings/clock/samsung,s3c2443-clock.txt
+++ b/Documentation/devicetree/bindings/clock/samsung,s3c2443-clock.txt
@@ -52,5 +52,4 @@ Example: UART controller node that consumes the clock generated by the clock
"clk_uart_baud3";
clocks = <&clocks PCLK_UART0>, <&clocks PCLK_UART0>,
<&clocks SCLK_UART>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/samsung,s3c64xx-clock.txt b/Documentation/devicetree/bindings/clock/samsung,s3c64xx-clock.txt
index fa171dc4bd3c..872ee8e0f041 100644
--- a/Documentation/devicetree/bindings/clock/samsung,s3c64xx-clock.txt
+++ b/Documentation/devicetree/bindings/clock/samsung,s3c64xx-clock.txt
@@ -73,5 +73,4 @@ Example: UART controller node that consumes the clock generated by the clock
"clk_uart_baud3";
clocks = <&clock PCLK_UART0>, <&clocks PCLK_UART0>,
<&clock SCLK_UART>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/samsung,s5pv210-clock.txt b/Documentation/devicetree/bindings/clock/samsung,s5pv210-clock.txt
index effd9401c133..15b48e20a061 100644
--- a/Documentation/devicetree/bindings/clock/samsung,s5pv210-clock.txt
+++ b/Documentation/devicetree/bindings/clock/samsung,s5pv210-clock.txt
@@ -74,5 +74,4 @@ Example: UART controller node that consumes the clock generated by the clock
"clk_uart_baud1";
clocks = <&clocks UART0>, <&clocks UART0>,
<&clocks SCLK_UART0>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/silabs,si5351.txt b/Documentation/devicetree/bindings/clock/silabs,si5351.txt
index 28b28309f535..a6c4ef343b44 100644
--- a/Documentation/devicetree/bindings/clock/silabs,si5351.txt
+++ b/Documentation/devicetree/bindings/clock/silabs,si5351.txt
@@ -12,7 +12,11 @@ generators can be found in [1].
==I2C device node==
Required properties:
-- compatible: shall be one of "silabs,si5351{a,a-msop,b,c}".
+- compatible: shall be one of the following:
+ "silabs,si5351a" - Si5351a, QFN20 package
+ "silabs,si5351a-msop" - Si5351a, MSOP10 package
+ "silabs,si5351b" - Si5351b, QFN20 package
+ "silabs,si5351c" - Si5351c, QFN20 package
- reg: i2c device address, shall be 0x60 or 0x61.
- #clock-cells: from common clock binding; shall be set to 1.
- clocks: from common clock binding; list of parent clock
diff --git a/Documentation/devicetree/bindings/clock/snps,hsdk-pll-clock.txt b/Documentation/devicetree/bindings/clock/snps,hsdk-pll-clock.txt
new file mode 100644
index 000000000000..c56c7553c730
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/snps,hsdk-pll-clock.txt
@@ -0,0 +1,28 @@
+Binding for the HSDK Generic PLL clock
+
+This binding uses the common clock binding[1].
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+Required properties:
+- compatible: should be "snps,hsdk-<name>-pll-clock"
+ "snps,hsdk-core-pll-clock"
+ "snps,hsdk-gp-pll-clock"
+ "snps,hsdk-hdmi-pll-clock"
+- reg : should contain base register location and length.
+- clocks: shall be the input parent clock phandle for the PLL.
+- #clock-cells: from common clock binding; Should always be set to 0.
+
+Example:
+ input_clk: input-clk {
+ clock-frequency = <33333333>;
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ };
+
+ cpu_clk: cpu-clk@0 {
+ compatible = "snps,hsdk-core-pll-clock";
+ reg = <0x00 0x10>;
+ #clock-cells = <0>;
+ clocks = <&input_clk>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/snps,pll-clock.txt b/Documentation/devicetree/bindings/clock/snps,pll-clock.txt
new file mode 100644
index 000000000000..11fe4876612c
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/snps,pll-clock.txt
@@ -0,0 +1,28 @@
+Binding for the AXS10X Generic PLL clock
+
+This binding uses the common clock binding[1].
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+Required properties:
+- compatible: should be "snps,axs10x-<name>-pll-clock"
+ "snps,axs10x-arc-pll-clock"
+ "snps,axs10x-pgu-pll-clock"
+- reg: should always contain 2 pairs address - length: first for PLL config
+registers and second for corresponding LOCK CGU register.
+- clocks: shall be the input parent clock phandle for the PLL.
+- #clock-cells: from common clock binding; Should always be set to 0.
+
+Example:
+ input-clk: input-clk {
+ clock-frequency = <33333333>;
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ };
+
+ core-clk: core-clk@80 {
+ compatible = "snps,axs10x-arc-pll-clock";
+ reg = <0x80 0x10>, <0x100 0x10>;
+ #clock-cells = <0>;
+ clocks = <&input-clk>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/st,stm32h7-rcc.txt b/Documentation/devicetree/bindings/clock/st,stm32h7-rcc.txt
new file mode 100644
index 000000000000..cac24ee10b72
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/st,stm32h7-rcc.txt
@@ -0,0 +1,71 @@
+STMicroelectronics STM32H7 Reset and Clock Controller
+=====================================================
+
+The RCC IP is both a reset and a clock controller.
+
+Please refer to clock-bindings.txt for common clock controller binding usage.
+Please also refer to reset.txt for common reset controller binding usage.
+
+Required properties:
+- compatible: Should be:
+ "st,stm32h743-rcc"
+
+- reg: should be register base and length as documented in the
+ datasheet
+
+- #reset-cells: 1, see below
+
+- #clock-cells : from common clock binding; shall be set to 1
+
+- clocks: External oscillator clock phandle
+ - high speed external clock signal (HSE)
+ - low speed external clock signal (LSE)
+ - external I2S clock (I2S_CKIN)
+
+Optional properties:
+- st,syscfg: phandle for pwrcfg, mandatory to disable/enable backup domain
+ write protection (RTC clock).
+
+Example:
+
+ rcc: reset-clock-controller@58024400 {
+ compatible = "st,stm32h743-rcc", "st,stm32-rcc";
+ reg = <0x58024400 0x400>;
+ #reset-cells = <1>;
+ #clock-cells = <1>;
+ clocks = <&clk_hse>, <&clk_lse>, <&clk_i2s_ckin>;
+
+ st,syscfg = <&pwrcfg>;
+};
+
+The peripheral clock consumer should specify the desired clock by
+having the clock ID in its "clocks" phandle cell.
+
+Example:
+
+ timer5: timer@40000c00 {
+ compatible = "st,stm32-timer";
+ reg = <0x40000c00 0x400>;
+ interrupts = <50>;
+ clocks = <&rcc TIM5_CK>;
+ };
+
+Specifying softreset control of devices
+=======================================
+
+Device nodes should specify the reset channel required in their "resets"
+property, containing a phandle to the reset device node and an index specifying
+which channel to use.
+The index is the bit number within the RCC registers bank, starting from RCC
+base address.
+It is calculated as: index = register_offset / 4 * 32 + bit_offset.
+Where bit_offset is the bit offset within the register.
+
+For example, for CRC reset:
+ crc = AHB4RSTR_offset / 4 * 32 + CRCRST_bit_offset = 0x88 / 4 * 32 + 19 = 1107
+
+Example:
+
+ timer2 {
+ resets = <&rcc STM32H7_APB1L_RESET(TIM2)>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/sun8i-de2.txt b/Documentation/devicetree/bindings/clock/sun8i-de2.txt
new file mode 100644
index 000000000000..631d27cd89d6
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/sun8i-de2.txt
@@ -0,0 +1,31 @@
+Allwinner Display Engine 2.0 Clock Control Binding
+--------------------------------------------------
+
+Required properties :
+- compatible: must contain one of the following compatibles:
+ - "allwinner,sun8i-a83t-de2-clk"
+ - "allwinner,sun8i-v3s-de2-clk"
+ - "allwinner,sun50i-h5-de2-clk"
+
+- reg: Must contain the registers base address and length
+- clocks: phandle to the clocks feeding the display engine subsystem.
+ Three are needed:
+ - "mod": the display engine module clock
+ - "bus": the bus clock for the whole display engine subsystem
+- clock-names: Must contain the clock names described just above
+- resets: phandle to the reset control for the display engine subsystem.
+- #clock-cells : must contain 1
+- #reset-cells : must contain 1
+
+Example:
+de2_clocks: clock@1000000 {
+ compatible = "allwinner,sun8i-a83t-de2-clk";
+ reg = <0x01000000 0x100000>;
+ clocks = <&ccu CLK_BUS_DE>,
+ <&ccu CLK_DE>;
+ clock-names = "bus",
+ "mod";
+ resets = <&ccu RST_BUS_DE>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+};
diff --git a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
index f465647a4dd2..7eda08eb8a1e 100644
--- a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
+++ b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
@@ -3,26 +3,35 @@ Allwinner Clock Control Unit Binding
Required properties :
- compatible: must contain one of the following compatibles:
+ - "allwinner,sun4i-a10-ccu"
+ - "allwinner,sun5i-a10s-ccu"
+ - "allwinner,sun5i-a13-ccu"
- "allwinner,sun6i-a31-ccu"
+ - "allwinner,sun7i-a20-ccu"
- "allwinner,sun8i-a23-ccu"
- "allwinner,sun8i-a33-ccu"
+ - "allwinner,sun8i-a83t-ccu"
+ - "allwinner,sun8i-a83t-r-ccu"
- "allwinner,sun8i-h3-ccu"
- "allwinner,sun8i-h3-r-ccu"
++ - "allwinner,sun8i-r40-ccu"
- "allwinner,sun8i-v3s-ccu"
- "allwinner,sun9i-a80-ccu"
- "allwinner,sun50i-a64-ccu"
- "allwinner,sun50i-a64-r-ccu"
- "allwinner,sun50i-h5-ccu"
+ - "nextthing,gr8-ccu"
- reg: Must contain the registers base address and length
- clocks: phandle to the oscillators feeding the CCU. Two are needed:
- "hosc": the high frequency oscillator (usually at 24MHz)
- "losc": the low frequency oscillator (usually at 32kHz)
+ On the A83T, this is the internal 16MHz oscillator divided by 512
- clock-names: Must contain the clock names described just above
- #clock-cells : must contain 1
- #reset-cells : must contain 1
-For the PRCM CCUs on H3/A64, two more clocks are needed:
+For the PRCM CCUs on A83T/H3/A64, two more clocks are needed:
- "pll-periph": the SoC's peripheral PLL from the main CCU
- "iosc": the SoC's internal frequency oscillator
diff --git a/Documentation/devicetree/bindings/clock/ti,sci-clk.txt b/Documentation/devicetree/bindings/clock/ti,sci-clk.txt
new file mode 100644
index 000000000000..4e59dc6b1778
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ti,sci-clk.txt
@@ -0,0 +1,36 @@
+Texas Instruments TI-SCI Clocks
+===============================
+
+All clocks on Texas Instruments' SoCs that contain a System Controller,
+are only controlled by this entity. Communication between a host processor
+running an OS and the System Controller happens through a protocol known
+as TI-SCI[1]. This clock implementation plugs into the common clock
+framework and makes use of the TI-SCI protocol on clock API requests.
+
+[1] Documentation/devicetree/bindings/arm/keystone/ti,sci.txt
+
+Required properties:
+-------------------
+- compatible: Must be "ti,k2g-sci-clk"
+- #clock-cells: Shall be 2.
+ In clock consumers, this cell represents the device ID and clock ID
+ exposed by the PM firmware. The list of valid values for the device IDs
+ and clocks IDs for 66AK2G SoC are documented at
+ http://processors.wiki.ti.com/index.php/TISCI#66AK2G02_Data
+
+Examples:
+--------
+
+pmmc: pmmc {
+ compatible = "ti,k2g-sci";
+
+ k2g_clks: clocks {
+ compatible = "ti,k2g-sci-clk";
+ #clock-cells = <2>;
+ };
+};
+
+uart0: serial@2530c00 {
+ compatible = "ns16550a";
+ clocks = <&k2g_clks 0x2c 0>;
+};
diff --git a/Documentation/devicetree/bindings/clock/ti-clkctrl.txt b/Documentation/devicetree/bindings/clock/ti-clkctrl.txt
new file mode 100644
index 000000000000..48ee6991f2cc
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ti-clkctrl.txt
@@ -0,0 +1,56 @@
+Texas Instruments clkctrl clock binding
+
+Texas Instruments SoCs can have a clkctrl clock controller for each
+interconnect target module. The clkctrl clock controller manages functional
+and interface clocks for each module. Each clkctrl controller can also
+gate one or more optional functional clocks for a module, and can have one
+or more clock muxes. There is a clkctrl clock controller typically for each
+interconnect target module on omap4 and later variants.
+
+The clock consumers can specify the index of the clkctrl clock using
+the hardware offset from the clkctrl instance register space. The optional
+clocks can be specified by clkctrl hardware offset and the index of the
+optional clock.
+
+For more information, please see the Linux clock framework binding at
+Documentation/devicetree/bindings/clock/clock-bindings.txt.
+
+Required properties :
+- compatible : shall be "ti,clkctrl"
+- #clock-cells : shall contain 2 with the first entry being the instance
+ offset from the clock domain base and the second being the
+ clock index
+
+Example: Clock controller node on omap 4430:
+
+&cm2 {
+ l4per: cm@1400 {
+ cm_l4per@0 {
+ cm_l4per_clkctrl: clk@20 {
+ compatible = "ti,clkctrl";
+ reg = <0x20 0x1b0>;
+ #clock-cells = <2>;
+ };
+ };
+ };
+};
+
+Example: Preprocessor helper macros in dt-bindings/clock/ti-clkctrl.h
+
+#define OMAP4_CLKCTRL_OFFSET 0x20
+#define OMAP4_CLKCTRL_INDEX(offset) ((offset) - OMAP4_CLKCTRL_OFFSET)
+#define MODULEMODE_HWCTRL 1
+#define MODULEMODE_SWCTRL 2
+
+#define OMAP4_GPTIMER10_CLKTRL OMAP4_CLKCTRL_INDEX(0x28)
+#define OMAP4_GPTIMER11_CLKTRL OMAP4_CLKCTRL_INDEX(0x30)
+#define OMAP4_GPTIMER2_CLKTRL OMAP4_CLKCTRL_INDEX(0x38)
+...
+#define OMAP4_GPIO2_CLKCTRL OMAP_CLKCTRL_INDEX(0x60)
+
+Example: Clock consumer node for GPIO2:
+
+&gpio2 {
+ clocks = <&cm_l4per_clkctrl OMAP4_GPIO2_CLKCTRL 0
+ &cm_l4per_clkctrl OMAP4_GPIO2_CLKCTRL 8>;
+};
diff --git a/Documentation/devicetree/bindings/clock/ti/dra7-atl.txt b/Documentation/devicetree/bindings/clock/ti/dra7-atl.txt
index 585e8c191f50..10f7047755f3 100644
--- a/Documentation/devicetree/bindings/clock/ti/dra7-atl.txt
+++ b/Documentation/devicetree/bindings/clock/ti/dra7-atl.txt
@@ -81,13 +81,11 @@ atl: atl@4843c000 {
<&atl_clkin2_ck>, <&atl_clkin3_ck>;
clocks = <&atl_gfclk_mux>;
clock-names = "fck";
- status = "disabled";
};
#include <dt-bindings/clk/ti-dra7-atl.h>
&atl {
- status = "okay";
atl2 {
bws = <DRA7_ATL_WS_MCASP2_FSX>;
diff --git a/Documentation/devicetree/bindings/clock/uniphier-clock.txt b/Documentation/devicetree/bindings/clock/uniphier-clock.txt
index 812163060fa3..7b5f602765fe 100644
--- a/Documentation/devicetree/bindings/clock/uniphier-clock.txt
+++ b/Documentation/devicetree/bindings/clock/uniphier-clock.txt
@@ -6,7 +6,6 @@ System clock
Required properties:
- compatible: should be one of the following:
- "socionext,uniphier-sld3-clock" - for sLD3 SoC.
"socionext,uniphier-ld4-clock" - for LD4 SoC.
"socionext,uniphier-pro4-clock" - for Pro4 SoC.
"socionext,uniphier-sld8-clock" - for sLD8 SoC.
@@ -14,6 +13,7 @@ Required properties:
"socionext,uniphier-pxs2-clock" - for PXs2/LD6b SoC.
"socionext,uniphier-ld11-clock" - for LD11 SoC.
"socionext,uniphier-ld20-clock" - for LD20 SoC.
+ "socionext,uniphier-pxs3-clock" - for PXs3 SoC
- #clock-cells: should be 1.
Example:
@@ -48,7 +48,6 @@ Media I/O (MIO) clock, SD clock
Required properties:
- compatible: should be one of the following:
- "socionext,uniphier-sld3-mio-clock" - for sLD3 SoC.
"socionext,uniphier-ld4-mio-clock" - for LD4 SoC.
"socionext,uniphier-pro4-mio-clock" - for Pro4 SoC.
"socionext,uniphier-sld8-mio-clock" - for sLD8 SoC.
@@ -56,6 +55,7 @@ Required properties:
"socionext,uniphier-pxs2-sd-clock" - for PXs2/LD6b SoC.
"socionext,uniphier-ld11-mio-clock" - for LD11 SoC.
"socionext,uniphier-ld20-sd-clock" - for LD20 SoC.
+ "socionext,uniphier-pxs3-sd-clock" - for PXs3 SoC
- #clock-cells: should be 1.
Example:
@@ -82,11 +82,9 @@ Provided clocks:
8: USB2 ch0 host
9: USB2 ch1 host
10: USB2 ch2 host
-11: USB2 ch3 host
12: USB2 ch0 PHY
13: USB2 ch1 PHY
14: USB2 ch2 PHY
-15: USB2 ch3 PHY
Peripheral clock
@@ -94,7 +92,6 @@ Peripheral clock
Required properties:
- compatible: should be one of the following:
- "socionext,uniphier-sld3-peri-clock" - for sLD3 SoC.
"socionext,uniphier-ld4-peri-clock" - for LD4 SoC.
"socionext,uniphier-pro4-peri-clock" - for Pro4 SoC.
"socionext,uniphier-sld8-peri-clock" - for sLD8 SoC.
@@ -102,6 +99,7 @@ Required properties:
"socionext,uniphier-pxs2-peri-clock" - for PXs2/LD6b SoC.
"socionext,uniphier-ld11-peri-clock" - for LD11 SoC.
"socionext,uniphier-ld20-peri-clock" - for LD20 SoC.
+ "socionext,uniphier-pxs3-peri-clock" - for PXs3 SoC
- #clock-cells: should be 1.
Example:
diff --git a/Documentation/devicetree/bindings/clock/zx296702-clk.txt b/Documentation/devicetree/bindings/clock/zx296702-clk.txt
index 750442b65505..e85ecb510d56 100644
--- a/Documentation/devicetree/bindings/clock/zx296702-clk.txt
+++ b/Documentation/devicetree/bindings/clock/zx296702-clk.txt
@@ -31,5 +31,4 @@ uart0: serial@0x09405000 {
reg = <0x09405000 0x1000>;
interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&lsp1clk ZX296702_UART0_PCLK>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/clock/zx296718-clk.txt b/Documentation/devicetree/bindings/clock/zx296718-clk.txt
index 4ad703808407..3a46bf0b2540 100644
--- a/Documentation/devicetree/bindings/clock/zx296718-clk.txt
+++ b/Documentation/devicetree/bindings/clock/zx296718-clk.txt
@@ -34,5 +34,4 @@ usbphy0:usb-phy0 {
#phy-cells = <0>;
clocks = <&topclk USB20_PHY_CLK>;
clock-names = "phyclk";
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/common-properties.txt b/Documentation/devicetree/bindings/common-properties.txt
index 3193979b1d05..697714f8d75c 100644
--- a/Documentation/devicetree/bindings/common-properties.txt
+++ b/Documentation/devicetree/bindings/common-properties.txt
@@ -1,6 +1,6 @@
Common properties
-The ePAPR specification does not define any properties related to hardware
+The Devicetree Specification does not define any properties related to hardware
byteswapping, but endianness issues show up frequently in porting Linux to
different machine types. This document attempts to provide a consistent
way of handling byteswapping across drivers.
diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek.txt b/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek.txt
new file mode 100644
index 000000000000..f6403089edcf
--- /dev/null
+++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek.txt
@@ -0,0 +1,247 @@
+Binding for MediaTek's CPUFreq driver
+=====================================
+
+Required properties:
+- clocks: A list of phandle + clock-specifier pairs for the clocks listed in clock names.
+- clock-names: Should contain the following:
+ "cpu" - The multiplexer for clock input of CPU cluster.
+ "intermediate" - A parent of "cpu" clock which is used as "intermediate" clock
+ source (usually MAINPLL) when the original CPU PLL is under
+ transition and not stable yet.
+ Please refer to Documentation/devicetree/bindings/clk/clock-bindings.txt for
+ generic clock consumer properties.
+- operating-points-v2: Please refer to Documentation/devicetree/bindings/opp/opp.txt
+ for detail.
+- proc-supply: Regulator for Vproc of CPU cluster.
+
+Optional properties:
+- sram-supply: Regulator for Vsram of CPU cluster. When present, the cpufreq driver
+ needs to do "voltage tracking" to step by step scale up/down Vproc and
+ Vsram to fit SoC specific needs. When absent, the voltage scaling
+ flow is handled by hardware, hence no software "voltage tracking" is
+ needed.
+- #cooling-cells:
+- cooling-min-level:
+- cooling-max-level:
+ Please refer to Documentation/devicetree/bindings/thermal/thermal.txt
+ for detail.
+
+Example 1 (MT7623 SoC):
+
+ cpu_opp_table: opp_table {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp-598000000 {
+ opp-hz = /bits/ 64 <598000000>;
+ opp-microvolt = <1050000>;
+ };
+
+ opp-747500000 {
+ opp-hz = /bits/ 64 <747500000>;
+ opp-microvolt = <1050000>;
+ };
+
+ opp-1040000000 {
+ opp-hz = /bits/ 64 <1040000000>;
+ opp-microvolt = <1150000>;
+ };
+
+ opp-1196000000 {
+ opp-hz = /bits/ 64 <1196000000>;
+ opp-microvolt = <1200000>;
+ };
+
+ opp-1300000000 {
+ opp-hz = /bits/ 64 <1300000000>;
+ opp-microvolt = <1300000>;
+ };
+ };
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0x0>;
+ clocks = <&infracfg CLK_INFRA_CPUSEL>,
+ <&apmixedsys CLK_APMIXED_MAINPLL>;
+ clock-names = "cpu", "intermediate";
+ operating-points-v2 = <&cpu_opp_table>;
+ #cooling-cells = <2>;
+ cooling-min-level = <0>;
+ cooling-max-level = <7>;
+ };
+ cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0x1>;
+ operating-points-v2 = <&cpu_opp_table>;
+ };
+ cpu@2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0x2>;
+ operating-points-v2 = <&cpu_opp_table>;
+ };
+ cpu@3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0x3>;
+ operating-points-v2 = <&cpu_opp_table>;
+ };
+
+Example 2 (MT8173 SoC):
+ cpu_opp_table_a: opp_table_a {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp-507000000 {
+ opp-hz = /bits/ 64 <507000000>;
+ opp-microvolt = <859000>;
+ };
+
+ opp-702000000 {
+ opp-hz = /bits/ 64 <702000000>;
+ opp-microvolt = <908000>;
+ };
+
+ opp-1001000000 {
+ opp-hz = /bits/ 64 <1001000000>;
+ opp-microvolt = <983000>;
+ };
+
+ opp-1105000000 {
+ opp-hz = /bits/ 64 <1105000000>;
+ opp-microvolt = <1009000>;
+ };
+
+ opp-1183000000 {
+ opp-hz = /bits/ 64 <1183000000>;
+ opp-microvolt = <1028000>;
+ };
+
+ opp-1404000000 {
+ opp-hz = /bits/ 64 <1404000000>;
+ opp-microvolt = <1083000>;
+ };
+
+ opp-1508000000 {
+ opp-hz = /bits/ 64 <1508000000>;
+ opp-microvolt = <1109000>;
+ };
+
+ opp-1573000000 {
+ opp-hz = /bits/ 64 <1573000000>;
+ opp-microvolt = <1125000>;
+ };
+ };
+
+ cpu_opp_table_b: opp_table_b {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp-507000000 {
+ opp-hz = /bits/ 64 <507000000>;
+ opp-microvolt = <828000>;
+ };
+
+ opp-702000000 {
+ opp-hz = /bits/ 64 <702000000>;
+ opp-microvolt = <867000>;
+ };
+
+ opp-1001000000 {
+ opp-hz = /bits/ 64 <1001000000>;
+ opp-microvolt = <927000>;
+ };
+
+ opp-1209000000 {
+ opp-hz = /bits/ 64 <1209000000>;
+ opp-microvolt = <968000>;
+ };
+
+ opp-1404000000 {
+ opp-hz = /bits/ 64 <1007000000>;
+ opp-microvolt = <1028000>;
+ };
+
+ opp-1612000000 {
+ opp-hz = /bits/ 64 <1612000000>;
+ opp-microvolt = <1049000>;
+ };
+
+ opp-1807000000 {
+ opp-hz = /bits/ 64 <1807000000>;
+ opp-microvolt = <1089000>;
+ };
+
+ opp-1989000000 {
+ opp-hz = /bits/ 64 <1989000000>;
+ opp-microvolt = <1125000>;
+ };
+ };
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0x000>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_SLEEP_0>;
+ clocks = <&infracfg CLK_INFRA_CA53SEL>,
+ <&apmixedsys CLK_APMIXED_MAINPLL>;
+ clock-names = "cpu", "intermediate";
+ operating-points-v2 = <&cpu_opp_table_a>;
+ };
+
+ cpu1: cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0x001>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_SLEEP_0>;
+ clocks = <&infracfg CLK_INFRA_CA53SEL>,
+ <&apmixedsys CLK_APMIXED_MAINPLL>;
+ clock-names = "cpu", "intermediate";
+ operating-points-v2 = <&cpu_opp_table_a>;
+ };
+
+ cpu2: cpu@100 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a57";
+ reg = <0x100>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_SLEEP_0>;
+ clocks = <&infracfg CLK_INFRA_CA57SEL>,
+ <&apmixedsys CLK_APMIXED_MAINPLL>;
+ clock-names = "cpu", "intermediate";
+ operating-points-v2 = <&cpu_opp_table_b>;
+ };
+
+ cpu3: cpu@101 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a57";
+ reg = <0x101>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_SLEEP_0>;
+ clocks = <&infracfg CLK_INFRA_CA57SEL>,
+ <&apmixedsys CLK_APMIXED_MAINPLL>;
+ clock-names = "cpu", "intermediate";
+ operating-points-v2 = <&cpu_opp_table_b>;
+ };
+
+ &cpu0 {
+ proc-supply = <&mt6397_vpca15_reg>;
+ };
+
+ &cpu1 {
+ proc-supply = <&mt6397_vpca15_reg>;
+ };
+
+ &cpu2 {
+ proc-supply = <&da9211_vcpu_reg>;
+ sram-supply = <&mt6397_vsramca7_reg>;
+ };
+
+ &cpu3 {
+ proc-supply = <&da9211_vcpu_reg>;
+ sram-supply = <&mt6397_vsramca7_reg>;
+ };
diff --git a/Documentation/devicetree/bindings/cpufreq/ti-cpufreq.txt b/Documentation/devicetree/bindings/cpufreq/ti-cpufreq.txt
index ba0e15ad5bd9..0c38e4b8fc51 100644
--- a/Documentation/devicetree/bindings/cpufreq/ti-cpufreq.txt
+++ b/Documentation/devicetree/bindings/cpufreq/ti-cpufreq.txt
@@ -63,64 +63,64 @@ cpu0_opp_table: opp-table {
* because they can not be enabled simultaneously on a
* single SoC.
*/
- opp50@300000000 {
+ opp50-300000000 {
opp-hz = /bits/ 64 <300000000>;
opp-microvolt = <950000 931000 969000>;
opp-supported-hw = <0x06 0x0010>;
opp-suspend;
};
- opp100@275000000 {
+ opp100-275000000 {
opp-hz = /bits/ 64 <275000000>;
opp-microvolt = <1100000 1078000 1122000>;
opp-supported-hw = <0x01 0x00FF>;
opp-suspend;
};
- opp100@300000000 {
+ opp100-300000000 {
opp-hz = /bits/ 64 <300000000>;
opp-microvolt = <1100000 1078000 1122000>;
opp-supported-hw = <0x06 0x0020>;
opp-suspend;
};
- opp100@500000000 {
+ opp100-500000000 {
opp-hz = /bits/ 64 <500000000>;
opp-microvolt = <1100000 1078000 1122000>;
opp-supported-hw = <0x01 0xFFFF>;
};
- opp100@600000000 {
+ opp100-600000000 {
opp-hz = /bits/ 64 <600000000>;
opp-microvolt = <1100000 1078000 1122000>;
opp-supported-hw = <0x06 0x0040>;
};
- opp120@600000000 {
+ opp120-600000000 {
opp-hz = /bits/ 64 <600000000>;
opp-microvolt = <1200000 1176000 1224000>;
opp-supported-hw = <0x01 0xFFFF>;
};
- opp120@720000000 {
+ opp120-720000000 {
opp-hz = /bits/ 64 <720000000>;
opp-microvolt = <1200000 1176000 1224000>;
opp-supported-hw = <0x06 0x0080>;
};
- oppturbo@720000000 {
+ oppturbo-720000000 {
opp-hz = /bits/ 64 <720000000>;
opp-microvolt = <1260000 1234800 1285200>;
opp-supported-hw = <0x01 0xFFFF>;
};
- oppturbo@800000000 {
+ oppturbo-800000000 {
opp-hz = /bits/ 64 <800000000>;
opp-microvolt = <1260000 1234800 1285200>;
opp-supported-hw = <0x06 0x0100>;
};
- oppnitro@1000000000 {
+ oppnitro-1000000000 {
opp-hz = /bits/ 64 <1000000000>;
opp-microvolt = <1325000 1298500 1351500>;
opp-supported-hw = <0x04 0x0200>;
diff --git a/Documentation/devicetree/bindings/crypto/artpec6-crypto.txt b/Documentation/devicetree/bindings/crypto/artpec6-crypto.txt
new file mode 100644
index 000000000000..d9cca4875bd6
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/artpec6-crypto.txt
@@ -0,0 +1,16 @@
+Axis crypto engine with PDMA interface.
+
+Required properties:
+- compatible : Should be one of the following strings:
+ "axis,artpec6-crypto" for the version in the Axis ARTPEC-6 SoC
+ "axis,artpec7-crypto" for the version in the Axis ARTPEC-7 SoC.
+- reg: Base address and size for the PDMA register area.
+- interrupts: Interrupt handle for the PDMA interrupt line.
+
+Example:
+
+crypto@f4264000 {
+ compatible = "axis,artpec6-crypto";
+ reg = <0xf4264000 0x1000>;
+ interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
+};
diff --git a/Documentation/devicetree/bindings/crypto/atmel-crypto.txt b/Documentation/devicetree/bindings/crypto/atmel-crypto.txt
index f2aab3dc2b52..7de1a9674c70 100644
--- a/Documentation/devicetree/bindings/crypto/atmel-crypto.txt
+++ b/Documentation/devicetree/bindings/crypto/atmel-crypto.txt
@@ -66,3 +66,16 @@ sha@f8034000 {
dmas = <&dma1 2 17>;
dma-names = "tx";
};
+
+* Eliptic Curve Cryptography (I2C)
+
+Required properties:
+- compatible : must be "atmel,atecc508a".
+- reg: I2C bus address of the device.
+- clock-frequency: must be present in the i2c controller node.
+
+Example:
+atecc508a@C0 {
+ compatible = "atmel,atecc508a";
+ reg = <0xC0>;
+};
diff --git a/Documentation/devicetree/bindings/crypto/fsl-dcp.txt b/Documentation/devicetree/bindings/crypto/fsl-dcp.txt
index 6949e50f1f16..76a0b4e80e83 100644
--- a/Documentation/devicetree/bindings/crypto/fsl-dcp.txt
+++ b/Documentation/devicetree/bindings/crypto/fsl-dcp.txt
@@ -13,5 +13,4 @@ dcp@80028000 {
compatible = "fsl,imx28-dcp", "fsl,imx23-dcp";
reg = <0x80028000 0x2000>;
interrupts = <52 53>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/crypto/fsl-sec4.txt b/Documentation/devicetree/bindings/crypto/fsl-sec4.txt
index 10a425f451fc..7aef0eae58d4 100644
--- a/Documentation/devicetree/bindings/crypto/fsl-sec4.txt
+++ b/Documentation/devicetree/bindings/crypto/fsl-sec4.txt
@@ -118,8 +118,8 @@ PROPERTIES
Definition: A list of clock name strings in the same order as the
clocks property.
- Note: All other standard properties (see the ePAPR) are allowed
- but are optional.
+ Note: All other standard properties (see the Devicetree Specification)
+ are allowed but are optional.
EXAMPLE
diff --git a/Documentation/devicetree/bindings/crypto/fsl-sec6.txt b/Documentation/devicetree/bindings/crypto/fsl-sec6.txt
index baf8a3c1b469..73b0eb950bb3 100644
--- a/Documentation/devicetree/bindings/crypto/fsl-sec6.txt
+++ b/Documentation/devicetree/bindings/crypto/fsl-sec6.txt
@@ -55,8 +55,8 @@ PROPERTIES
triplet that includes the child address, parent address, &
length.
- Note: All other standard properties (see the ePAPR) are allowed
- but are optional.
+ Note: All other standard properties (see the Devicetree Specification)
+ are allowed but are optional.
EXAMPLE
crypto@a0000 {
diff --git a/Documentation/devicetree/bindings/crypto/inside-secure-safexcel.txt b/Documentation/devicetree/bindings/crypto/inside-secure-safexcel.txt
new file mode 100644
index 000000000000..fbc07d12322f
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/inside-secure-safexcel.txt
@@ -0,0 +1,26 @@
+Inside Secure SafeXcel cryptographic engine
+
+Required properties:
+- compatible: Should be "inside-secure,safexcel-eip197".
+- reg: Base physical address of the engine and length of memory mapped region.
+- interrupts: Interrupt numbers for the rings and engine.
+- interrupt-names: Should be "ring0", "ring1", "ring2", "ring3", "eip", "mem".
+
+Optional properties:
+- clocks: Reference to the crypto engine clock.
+
+Example:
+
+ crypto: crypto@800000 {
+ compatible = "inside-secure,safexcel-eip197";
+ reg = <0x800000 0x200000>;
+ interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "mem", "ring0", "ring1", "ring2", "ring3",
+ "eip";
+ clocks = <&cpm_syscon0 1 26>;
+ };
diff --git a/Documentation/devicetree/bindings/crypto/marvell-cesa.txt b/Documentation/devicetree/bindings/crypto/marvell-cesa.txt
index c6c6a4a045bd..28d3f2496b89 100644
--- a/Documentation/devicetree/bindings/crypto/marvell-cesa.txt
+++ b/Documentation/devicetree/bindings/crypto/marvell-cesa.txt
@@ -41,5 +41,4 @@ Examples:
clock-names = "cesa0", "cesa1";
marvell,crypto-srams = <&crypto_sram0>, <&crypto_sram1>;
marvell,crypto-sram-size = <0x600>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/crypto/mediatek-crypto.txt b/Documentation/devicetree/bindings/crypto/mediatek-crypto.txt
index c204725e5873..450da3661cad 100644
--- a/Documentation/devicetree/bindings/crypto/mediatek-crypto.txt
+++ b/Documentation/devicetree/bindings/crypto/mediatek-crypto.txt
@@ -6,8 +6,7 @@ Required properties:
- interrupts: Should contain the five crypto engines interrupts in numeric
order. These are global system and four descriptor rings.
- clocks: the clock used by the core
-- clock-names: the names of the clock listed in the clocks property. These are
- "ethif", "cryp"
+- clock-names: Must contain "cryp".
- power-domains: Must contain a reference to the PM domain.
@@ -20,8 +19,7 @@ Example:
<GIC_SPI 84 IRQ_TYPE_LEVEL_LOW>,
<GIC_SPI 91 IRQ_TYPE_LEVEL_LOW>,
<GIC_SPI 97 IRQ_TYPE_LEVEL_LOW>;
- clocks = <&topckgen CLK_TOP_ETHIF_SEL>,
- <&ethsys CLK_ETHSYS_CRYPTO>;
- clock-names = "ethif","cryp";
+ clocks = <&ethsys CLK_ETHSYS_CRYPTO>;
+ clock-names = "cryp";
power-domains = <&scpsys MT2701_POWER_DOMAIN_ETH>;
};
diff --git a/Documentation/devicetree/bindings/crypto/mv_cesa.txt b/Documentation/devicetree/bindings/crypto/mv_cesa.txt
index c0c35f00335b..d9b92e2f3138 100644
--- a/Documentation/devicetree/bindings/crypto/mv_cesa.txt
+++ b/Documentation/devicetree/bindings/crypto/mv_cesa.txt
@@ -29,5 +29,4 @@ Examples:
interrupts = <22>;
marvell,crypto-srams = <&crypto_sram>;
marvell,crypto-sram-size = <0x600>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/crypto/rockchip-crypto.txt b/Documentation/devicetree/bindings/crypto/rockchip-crypto.txt
index 096df34b11c1..5e2ba385b8c9 100644
--- a/Documentation/devicetree/bindings/crypto/rockchip-crypto.txt
+++ b/Documentation/devicetree/bindings/crypto/rockchip-crypto.txt
@@ -25,5 +25,4 @@ Examples:
clock-names = "aclk", "hclk", "sclk", "apb_pclk";
resets = <&cru SRST_CRYPTO>;
reset-names = "crypto-rst";
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/crypto/st,stm32-hash.txt b/Documentation/devicetree/bindings/crypto/st,stm32-hash.txt
new file mode 100644
index 000000000000..04fc246f02f7
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/st,stm32-hash.txt
@@ -0,0 +1,30 @@
+* STMicroelectronics STM32 HASH
+
+Required properties:
+- compatible: Should contain entries for this and backward compatible
+ HASH versions:
+ - "st,stm32f456-hash" for stm32 F456.
+ - "st,stm32f756-hash" for stm32 F756.
+- reg: The address and length of the peripheral registers space
+- interrupts: the interrupt specifier for the HASH
+- clocks: The input clock of the HASH instance
+
+Optional properties:
+- resets: The input reset of the HASH instance
+- dmas: DMA specifiers for the HASH. See the DMA client binding,
+ Documentation/devicetree/bindings/dma/dma.txt
+- dma-names: DMA request name. Should be "in" if a dma is present.
+- dma-maxburst: Set number of maximum dma burst supported
+
+Example:
+
+hash1: hash@50060400 {
+ compatible = "st,stm32f756-hash";
+ reg = <0x50060400 0x400>;
+ interrupts = <80>;
+ clocks = <&rcc 0 STM32F7_AHB2_CLOCK(HASH)>;
+ resets = <&rcc STM32F7_AHB2_RESET(HASH)>;
+ dmas = <&dma2 7 2 0x400 0x0>;
+ dma-names = "in";
+ dma-maxburst = <0>;
+};
diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt
index f2233138eba9..001dd63979a9 100644
--- a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt
+++ b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt
@@ -15,5 +15,4 @@ Example:
rockchip,pmu = <&pmugrf>;
clocks = <&cru PCLK_DDR_MON>;
clock-names = "pclk_ddr_mon";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/devfreq/rk3399_dmc.txt b/Documentation/devicetree/bindings/devfreq/rk3399_dmc.txt
index 7a9e8603c150..d6d2833482c9 100644
--- a/Documentation/devicetree/bindings/devfreq/rk3399_dmc.txt
+++ b/Documentation/devicetree/bindings/devfreq/rk3399_dmc.txt
@@ -205,5 +205,4 @@ Example:
rockchip,phy_lpddr4_ck_cs_drv = <PHY_DRV_ODT_80>;
rockchip,phy_lpddr4_dq_drv = <PHY_DRV_ODT_80>;
rockchip,phy_lpddr4_odt = <PHY_DRV_ODT_60>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/display/atmel,lcdc.txt b/Documentation/devicetree/bindings/display/atmel,lcdc.txt
index ecb8da063d07..1a21202778ee 100644
--- a/Documentation/devicetree/bindings/display/atmel,lcdc.txt
+++ b/Documentation/devicetree/bindings/display/atmel,lcdc.txt
@@ -34,7 +34,6 @@ Example:
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_fb>;
display = <&display0>;
- status = "okay";
#address-cells = <1>;
#size-cells = <1>;
diff --git a/Documentation/devicetree/bindings/display/atmel/hlcdc-dc.txt b/Documentation/devicetree/bindings/display/atmel/hlcdc-dc.txt
index ec94468b35be..82f2acb3d374 100644
--- a/Documentation/devicetree/bindings/display/atmel/hlcdc-dc.txt
+++ b/Documentation/devicetree/bindings/display/atmel/hlcdc-dc.txt
@@ -23,7 +23,6 @@ Example:
interrupts = <36 IRQ_TYPE_LEVEL_HIGH 0>;
clocks = <&lcdc_clk>, <&lcdck>, <&clk32k>;
clock-names = "periph_clk","sys_clk", "slow_clk";
- status = "disabled";
hlcdc-display-controller {
compatible = "atmel,hlcdc-display-controller";
diff --git a/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt b/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt
index ca02d3e4db91..284e2b14cfbe 100644
--- a/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt
+++ b/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt
@@ -5,7 +5,7 @@ with HDMI output and the HVS (Hardware Video Scaler) for compositing
display planes.
Required properties for VC4:
-- compatible: Should be "brcm,bcm2835-vc4"
+- compatible: Should be "brcm,bcm2835-vc4" or "brcm,cygnus-vc4"
Required properties for Pixel Valve:
- compatible: Should be one of "brcm,bcm2835-pixelvalve0",
@@ -54,11 +54,14 @@ Required properties for VEC:
See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
Required properties for V3D:
-- compatible: Should be "brcm,bcm2835-v3d"
+- compatible: Should be "brcm,bcm2835-v3d" or "brcm,cygnus-v3d"
- reg: Physical base address and length of the V3D's registers
- interrupts: The interrupt number
See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
+Optional properties for V3D:
+- clocks: The clock the unit runs on
+
Required properties for DSI:
- compatible: Should be "brcm,bcm2835-dsi0" or "brcm,bcm2835-dsi1"
- reg: Physical base address and length of the DSI block's registers
diff --git a/Documentation/devicetree/bindings/display/bridge/adi,adv7511.txt b/Documentation/devicetree/bindings/display/bridge/adi,adv7511.txt
index 00ea670b8c4d..06668bca7ffc 100644
--- a/Documentation/devicetree/bindings/display/bridge/adi,adv7511.txt
+++ b/Documentation/devicetree/bindings/display/bridge/adi,adv7511.txt
@@ -78,6 +78,7 @@ graph bindings specified in Documentation/devicetree/bindings/graph.txt.
remote endpoint phandle should be a reference to a valid mipi_dsi_host device
node.
- Video port 1 for the HDMI output
+- Audio port 2 for the HDMI audio input
Example
@@ -112,5 +113,12 @@ Example
remote-endpoint = <&hdmi_connector_in>;
};
};
+
+ port@2 {
+ reg = <2>;
+ codec_endpoint: endpoint {
+ remote-endpoint = <&i2s0_cpu_endpoint>;
+ };
+ };
};
};
diff --git a/Documentation/devicetree/bindings/display/bridge/dw_mipi_dsi.txt b/Documentation/devicetree/bindings/display/bridge/dw_mipi_dsi.txt
new file mode 100644
index 000000000000..b13adf30b8d3
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/dw_mipi_dsi.txt
@@ -0,0 +1,32 @@
+Synopsys DesignWare MIPI DSI host controller
+============================================
+
+This document defines device tree properties for the Synopsys DesignWare MIPI
+DSI host controller. It doesn't constitue a device tree binding specification
+by itself but is meant to be referenced by platform-specific device tree
+bindings.
+
+When referenced from platform device tree bindings the properties defined in
+this document are defined as follows. The platform device tree bindings are
+responsible for defining whether each optional property is used or not.
+
+- reg: Memory mapped base address and length of the DesignWare MIPI DSI
+ host controller registers. (mandatory)
+
+- clocks: References to all the clocks specified in the clock-names property
+ as specified in [1]. (mandatory)
+
+- clock-names:
+ - "pclk" is the peripheral clock for either AHB and APB. (mandatory)
+ - "px_clk" is the pixel clock for the DPI/RGB input. (optional)
+
+- resets: References to all the resets specified in the reset-names property
+ as specified in [2]. (optional)
+
+- reset-names: string reset name, must be "apb" if used. (optional)
+
+- panel or bridge node: see [3]. (mandatory)
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+[2] Documentation/devicetree/bindings/reset/reset.txt
+[3] Documentation/devicetree/bindings/display/mipi-dsi-bus.txt
diff --git a/Documentation/devicetree/bindings/display/bridge/megachips-stdpxxxx-ge-b850v3-fw.txt b/Documentation/devicetree/bindings/display/bridge/megachips-stdpxxxx-ge-b850v3-fw.txt
index 7baa6582517e..aacc8b92968c 100644
--- a/Documentation/devicetree/bindings/display/bridge/megachips-stdpxxxx-ge-b850v3-fw.txt
+++ b/Documentation/devicetree/bindings/display/bridge/megachips-stdpxxxx-ge-b850v3-fw.txt
@@ -33,7 +33,6 @@ stdp2690-ge-b850v3-fw required properties:
Example:
&mux2_i2c2 {
- status = "okay";
clock-frequency = <100000>;
stdp4028@73 {
diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt b/Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt
index f6b3f36d422b..b1a8929c2536 100644
--- a/Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt
+++ b/Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt
@@ -13,6 +13,7 @@ Required properties:
- compatible : Shall contain one or more of
- "renesas,r8a7795-hdmi" for R8A7795 (R-Car H3) compatible HDMI TX
+ - "renesas,r8a7796-hdmi" for R8A7796 (R-Car M3-W) compatible HDMI TX
- "renesas,rcar-gen3-hdmi" for the generic R-Car Gen3 compatible HDMI TX
When compatible with generic versions, nodes must list the SoC-specific
@@ -25,7 +26,8 @@ Required properties:
- clock-names: Shall contain "iahb" and "isfr" as defined in dw_hdmi.txt.
- ports: See dw_hdmi.txt. The DWC HDMI shall have one port numbered 0
corresponding to the video input of the controller and one port numbered 1
- corresponding to its HDMI output. Each port shall have a single endpoint.
+ corresponding to its HDMI output, and one port numbered 2 corresponding to
+ sound input of the controller. Each port shall have a single endpoint.
Optional properties:
@@ -42,7 +44,6 @@ Example:
clocks = <&cpg CPG_CORE R8A7795_CLK_S0D4>, <&cpg CPG_MOD 729>;
clock-names = "iahb", "isfr";
power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
- status = "disabled";
ports {
#address-cells = <1>;
@@ -59,6 +60,12 @@ Example:
remote-endpoint = <&hdmi0_con>;
};
};
+ port@2 {
+ reg = <2>;
+ rcar_dw_hdmi0_sound_in: endpoint {
+ remote-endpoint = <&hdmi_sound_out>;
+ };
+ };
};
};
diff --git a/Documentation/devicetree/bindings/display/exynos/exynos5433-decon.txt b/Documentation/devicetree/bindings/display/exynos/exynos5433-decon.txt
index c9fd7b3807e7..fc2588292a68 100644
--- a/Documentation/devicetree/bindings/display/exynos/exynos5433-decon.txt
+++ b/Documentation/devicetree/bindings/display/exynos/exynos5433-decon.txt
@@ -8,12 +8,13 @@ Required properties:
- compatible: value should be one of:
"samsung,exynos5433-decon", "samsung,exynos5433-decon-tv";
- reg: physical base address and length of the DECON registers set.
-- interrupts: should contain a list of all DECON IP block interrupts in the
- order: VSYNC, LCD_SYSTEM. The interrupt specifier format
- depends on the interrupt controller used.
-- interrupt-names: should contain the interrupt names: "vsync", "lcd_sys"
- in the same order as they were listed in the interrupts
- property.
+- interrupt-names: should contain the interrupt names depending on mode of work:
+ video mode: "vsync",
+ command mode: "lcd_sys",
+ command mode with software trigger: "lcd_sys", "te".
+- interrupts or interrupts-extended: list of interrupt specifiers corresponding
+ to names privided in interrupt-names, as described in
+ interrupt-controller/interrupts.txt
- clocks: must include clock specifiers corresponding to entries in the
clock-names property.
- clock-names: list of clock names sorted in the same order as the clocks
@@ -24,12 +25,6 @@ Required properties:
size-cells must 1 and 0, respectively.
- port: contains an endpoint node which is connected to the endpoint in the mic
node. The reg value muset be 0.
-- i80-if-timings: specify whether the panel which is connected to decon uses
- i80 lcd interface or mipi video interface. This node contains
- no timing information as that of fimd does. Because there is
- no register in decon to specify i80 interface timing value,
- it is not needed, but make it remain to use same kind of node
- in fimd and exynos7 decon.
Example:
SoC specific DT entry:
@@ -58,9 +53,3 @@ decon: decon@13800000 {
};
};
};
-
-Board specific DT entry:
-&decon {
- i80-if-timings {
- };
-};
diff --git a/Documentation/devicetree/bindings/display/fsl,tcon.txt b/Documentation/devicetree/bindings/display/fsl,tcon.txt
index 6fa4ab668db5..475008747801 100644
--- a/Documentation/devicetree/bindings/display/fsl,tcon.txt
+++ b/Documentation/devicetree/bindings/display/fsl,tcon.txt
@@ -14,5 +14,4 @@ timing-controller@4003d000 {
reg = <0x4003d000 0x1000>;
clocks = <&clks VF610_CLK_TCON0>;
clock-names = "ipg";
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/display/imx/fsl-imx-drm.txt b/Documentation/devicetree/bindings/display/imx/fsl-imx-drm.txt
index fa01db7eb66c..f79854783c2c 100644
--- a/Documentation/devicetree/bindings/display/imx/fsl-imx-drm.txt
+++ b/Documentation/devicetree/bindings/display/imx/fsl-imx-drm.txt
@@ -116,7 +116,7 @@ Parallel display support
Required properties:
- compatible: Should be "fsl,imx-parallel-display"
Optional properties:
-- interface_pix_fmt: How this display is connected to the
+- interface-pix-fmt: How this display is connected to the
display interface. Currently supported types: "rgb24", "rgb565", "bgr666"
and "lvds666".
- edid: verbatim EDID data block describing attached display.
diff --git a/Documentation/devicetree/bindings/display/marvell,pxa2xx-lcdc.txt b/Documentation/devicetree/bindings/display/marvell,pxa2xx-lcdc.txt
index 309c47f25b87..f79641bd5f18 100644
--- a/Documentation/devicetree/bindings/display/marvell,pxa2xx-lcdc.txt
+++ b/Documentation/devicetree/bindings/display/marvell,pxa2xx-lcdc.txt
@@ -23,7 +23,6 @@ Example:
reg = <0x44000000 0x10000>;
interrupts = <17>;
clocks = <&clks CLK_LCD>;
- status = "okay";
port {
lcdc_out: endpoint {
diff --git a/Documentation/devicetree/bindings/display/panel/auo,p320hvn03.txt b/Documentation/devicetree/bindings/display/panel/auo,p320hvn03.txt
new file mode 100644
index 000000000000..59bb6cd8aa75
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/auo,p320hvn03.txt
@@ -0,0 +1,8 @@
+AU Optronics Corporation 31.5" FHD (1920x1080) TFT LCD panel
+
+Required properties:
+- compatible: should be "auo,p320hvn03"
+- power-supply: as specified in the base binding
+
+This binding is compatible with the simple-panel binding, which is specified
+in simple-panel.txt in this directory.
diff --git a/Documentation/devicetree/bindings/display/panel/display-timing.txt b/Documentation/devicetree/bindings/display/panel/display-timing.txt
index 81a75893d1b8..58fa3e48481d 100644
--- a/Documentation/devicetree/bindings/display/panel/display-timing.txt
+++ b/Documentation/devicetree/bindings/display/panel/display-timing.txt
@@ -57,11 +57,11 @@ can be specified.
The parameters are defined as:
+----------+-------------------------------------+----------+-------+
- | | ↑ | | |
+ | | ^ | | |
| | |vback_porch | | |
- | | ↓ | | |
+ | | v | | |
+----------#######################################----------+-------+
- | # ↑ # | |
+ | # ^ # | |
| # | # | |
| hback # | # hfront | hsync |
| porch # | hactive # porch | len |
@@ -69,15 +69,15 @@ The parameters are defined as:
| # | # | |
| # |vactive # | |
| # | # | |
- | # ↓ # | |
+ | # v # | |
+----------#######################################----------+-------+
- | | ↑ | | |
+ | | ^ | | |
| | |vfront_porch | | |
- | | ↓ | | |
+ | | v | | |
+----------+-------------------------------------+----------+-------+
- | | ↑ | | |
+ | | ^ | | |
| | |vsync_len | | |
- | | ↓ | | |
+ | | v | | |
+----------+-------------------------------------+----------+-------+
Example:
diff --git a/Documentation/devicetree/bindings/display/panel/innolux,p079zca.txt b/Documentation/devicetree/bindings/display/panel/innolux,p079zca.txt
new file mode 100644
index 000000000000..d0f55161579a
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/innolux,p079zca.txt
@@ -0,0 +1,22 @@
+Innolux P079ZCA 7.85" 768x1024 TFT LCD panel
+
+Required properties:
+- compatible: should be "innolux,p079zca"
+- reg: DSI virtual channel of the peripheral
+- power-supply: phandle of the regulator that provides the supply voltage
+- enable-gpios: panel enable gpio
+
+Optional properties:
+- backlight: phandle of the backlight device attached to the panel
+
+Example:
+
+ &mipi_dsi {
+ panel {
+ compatible = "innolux,p079zca";
+ reg = <0>;
+ power-supply = <...>;
+ backlight = <&backlight>;
+ enable-gpios = <&gpio1 13 GPIO_ACTIVE_HIGH>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/panel/nec,nl12880b20-05.txt b/Documentation/devicetree/bindings/display/panel/nec,nl12880b20-05.txt
new file mode 100644
index 000000000000..71cbc49ecfab
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/nec,nl12880b20-05.txt
@@ -0,0 +1,8 @@
+NEC LCD Technologies, Ltd. 12.1" WXGA (1280x800) LVDS TFT LCD panel
+
+Required properties:
+- compatible: should be "nec,nl12880bc20-05"
+- power-supply: as specified in the base binding
+
+This binding is compatible with the simple-panel binding, which is specified
+in simple-panel.txt in this directory.
diff --git a/Documentation/devicetree/bindings/display/panel/nlt,nl192108ac18-02d.txt b/Documentation/devicetree/bindings/display/panel/nlt,nl192108ac18-02d.txt
new file mode 100644
index 000000000000..1a639fd8778d
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/nlt,nl192108ac18-02d.txt
@@ -0,0 +1,8 @@
+NLT Technologies, Ltd. 15.6" FHD (1920x1080) LVDS TFT LCD panel
+
+Required properties:
+- compatible: should be "nlt,nl192108ac18-02d"
+- power-supply: as specified in the base binding
+
+This binding is compatible with the simple-panel binding, which is specified
+in simple-panel.txt in this directory.
diff --git a/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt b/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt
index 18854f4c8376..4acea25c244b 100644
--- a/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt
+++ b/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt
@@ -1,7 +1,10 @@
Samsung S6E3HA2 5.7" 1440x2560 AMOLED panel
+Samsung S6E3HF2 5.65" 1600x2560 AMOLED panel
Required properties:
- - compatible: "samsung,s6e3ha2"
+ - compatible: should be one of:
+ "samsung,s6e3ha2",
+ "samsung,s6e3hf2".
- reg: the virtual channel number of a DSI peripheral
- vdd3-supply: I/O voltage supply
- vci-supply: voltage supply for analog circuits
diff --git a/Documentation/devicetree/bindings/display/renesas,du.txt b/Documentation/devicetree/bindings/display/renesas,du.txt
index c6cb96a4fa93..4bbd1e9bf3be 100644
--- a/Documentation/devicetree/bindings/display/renesas,du.txt
+++ b/Documentation/devicetree/bindings/display/renesas,du.txt
@@ -36,8 +36,10 @@ Required Properties:
When supplied they must be named "dclkin.x" with "x" being the input
clock numerical index.
- - vsps: A list of phandles to the VSP nodes that handle the memory
- interfaces for the DU channels.
+ - vsps: A list of phandle and channel index tuples to the VSPs that handle
+ the memory interfaces for the DU channels. The phandle identifies the VSP
+ instance that serves the DU channel, and the channel index identifies the
+ LIF instance in that VSP.
Required nodes:
@@ -59,24 +61,24 @@ corresponding to each DU output.
R8A7796 (M3-W) DPAD HDMI LVDS -
-Example: R8A7790 (R-Car H2) DU
+Example: R8A7795 (R-Car H3) ES2.0 DU
- du: du@feb00000 {
- compatible = "renesas,du-r8a7790";
- reg = <0 0xfeb00000 0 0x70000>,
- <0 0xfeb90000 0 0x1c>,
- <0 0xfeb94000 0 0x1c>;
- reg-names = "du", "lvds.0", "lvds.1";
- interrupt-parent = <&gic>;
- interrupts = <0 256 IRQ_TYPE_LEVEL_HIGH>,
- <0 268 IRQ_TYPE_LEVEL_HIGH>,
- <0 269 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&mstp7_clks R8A7790_CLK_DU0>,
- <&mstp7_clks R8A7790_CLK_DU1>,
- <&mstp7_clks R8A7790_CLK_DU2>,
- <&mstp7_clks R8A7790_CLK_LVDS0>,
- <&mstp7_clks R8A7790_CLK_LVDS1>;
- clock-names = "du.0", "du.1", "du.2", "lvds.0", "lvds.1";
+ du: display@feb00000 {
+ compatible = "renesas,du-r8a7795";
+ reg = <0 0xfeb00000 0 0x80000>,
+ <0 0xfeb90000 0 0x14>;
+ reg-names = "du", "lvds.0";
+ interrupts = <GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 268 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 269 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 270 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 724>,
+ <&cpg CPG_MOD 723>,
+ <&cpg CPG_MOD 722>,
+ <&cpg CPG_MOD 721>,
+ <&cpg CPG_MOD 727>;
+ clock-names = "du.0", "du.1", "du.2", "du.3", "lvds.0";
+ vsps = <&vspd0 0>, <&vspd1 0>, <&vspd2 0>, <&vspd0 1>;
ports {
#address-cells = <1>;
@@ -89,12 +91,19 @@ Example: R8A7790 (R-Car H2) DU
};
port@1 {
reg = <1>;
- du_out_lvds0: endpoint {
+ du_out_hdmi0: endpoint {
+ remote-endpoint = <&dw_hdmi0_in>;
};
};
port@2 {
reg = <2>;
- du_out_lvds1: endpoint {
+ du_out_hdmi1: endpoint {
+ remote-endpoint = <&dw_hdmi1_in>;
+ };
+ };
+ port@3 {
+ reg = <3>;
+ du_out_lvds0: endpoint {
};
};
};
diff --git a/Documentation/devicetree/bindings/display/repaper.txt b/Documentation/devicetree/bindings/display/repaper.txt
new file mode 100644
index 000000000000..f5f9f9cf6a25
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/repaper.txt
@@ -0,0 +1,52 @@
+Pervasive Displays RePaper branded e-ink displays
+
+Required properties:
+- compatible: "pervasive,e1144cs021" for 1.44" display
+ "pervasive,e1190cs021" for 1.9" display
+ "pervasive,e2200cs021" for 2.0" display
+ "pervasive,e2271cs021" for 2.7" display
+
+- panel-on-gpios: Timing controller power control
+- discharge-gpios: Discharge control
+- reset-gpios: RESET pin
+- busy-gpios: BUSY pin
+
+Required property for e2271cs021:
+- border-gpios: Border control
+
+The node for this driver must be a child node of a SPI controller, hence
+all mandatory properties described in ../spi/spi-bus.txt must be specified.
+
+Optional property:
+- pervasive,thermal-zone: name of thermometer's thermal zone
+
+Example:
+
+ display_temp: lm75@48 {
+ compatible = "lm75b";
+ reg = <0x48>;
+ #thermal-sensor-cells = <0>;
+ };
+
+ thermal-zones {
+ display {
+ polling-delay-passive = <0>;
+ polling-delay = <0>;
+ thermal-sensors = <&display_temp>;
+ };
+ };
+
+ papirus27@0{
+ compatible = "pervasive,e2271cs021";
+ reg = <0>;
+
+ spi-max-frequency = <8000000>;
+
+ panel-on-gpios = <&gpio 23 0>;
+ border-gpios = <&gpio 14 0>;
+ discharge-gpios = <&gpio 15 0>;
+ reset-gpios = <&gpio 24 0>;
+ busy-gpios = <&gpio 25 0>;
+
+ pervasive,thermal-zone = "display";
+ };
diff --git a/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
index 47665a12786f..43561584c13a 100644
--- a/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
+++ b/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
@@ -59,7 +59,6 @@ Example:
pinctrl-names = "default";
pinctrl-0 = <&edp_hpd>;
- status = "disabled";
ports {
#address-cells = <1>;
diff --git a/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt
index 046076c6b277..adc94fc3c9f8 100644
--- a/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt
+++ b/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt
@@ -11,7 +11,9 @@ following device-specific properties.
Required properties:
-- compatible: Shall contain "rockchip,rk3288-dw-hdmi".
+- compatible: should be one of the following:
+ "rockchip,rk3288-dw-hdmi"
+ "rockchip,rk3399-dw-hdmi"
- reg: See dw_hdmi.txt.
- reg-io-width: See dw_hdmi.txt. Shall be 4.
- interrupts: HDMI interrupt number
@@ -30,7 +32,8 @@ Optional properties
I2C master controller.
- clock-names: See dw_hdmi.txt. The "cec" clock is optional.
- clock-names: May contain "cec" as defined in dw_hdmi.txt.
-
+- clock-names: May contain "grf", power for grf io.
+- clock-names: May contain "vpll", external clock for some hdmi phy.
Example:
@@ -43,7 +46,6 @@ hdmi: hdmi@ff980000 {
interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru PCLK_HDMI_CTRL>, <&cru SCLK_HDMI_HDCP>;
clock-names = "iahb", "isfr";
- status = "disabled";
ports {
hdmi_in: port {
#address-cells = <1>;
diff --git a/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.txt
index 543b07435f4f..6bb59ab39f2f 100644
--- a/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.txt
+++ b/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.txt
@@ -36,7 +36,6 @@ Example:
resets = <&cru SRST_MIPIDSI0>;
reset-names = "apb";
rockchip,grf = <&grf>;
- status = "okay";
ports {
#address-cells = <1>;
@@ -65,6 +64,5 @@ Example:
pinctrl-names = "default";
pinctrl-0 = <&lcd_en>;
backlight = <&backlight>;
- status = "okay";
};
};
diff --git a/Documentation/devicetree/bindings/display/rockchip/inno_hdmi-rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/inno_hdmi-rockchip.txt
index 8096a29f9776..cec21714f0e0 100644
--- a/Documentation/devicetree/bindings/display/rockchip/inno_hdmi-rockchip.txt
+++ b/Documentation/devicetree/bindings/display/rockchip/inno_hdmi-rockchip.txt
@@ -25,7 +25,6 @@ hdmi: hdmi@20034000 {
clock-names = "pclk";
pinctrl-names = "default";
pinctrl-0 = <&hdmi_ctl>;
- status = "disabled";
hdmi_in: port {
#address-cells = <1>;
diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt b/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt
index 9eb3f0a2a078..5d835d9c1ba8 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt
@@ -8,8 +8,12 @@ Required properties:
- compatible: value should be one of the following
"rockchip,rk3036-vop";
"rockchip,rk3288-vop";
+ "rockchip,rk3368-vop";
+ "rockchip,rk3366-vop";
"rockchip,rk3399-vop-big";
"rockchip,rk3399-vop-lit";
+ "rockchip,rk3228-vop";
+ "rockchip,rk3328-vop";
- interrupts: should contain a list of all VOP IP block interrupts in the
order: VSYNC, LCD_SYSTEM. The interrupt specifier
diff --git a/Documentation/devicetree/bindings/display/simple-framebuffer-sunxi.txt b/Documentation/devicetree/bindings/display/simple-framebuffer-sunxi.txt
index c46ba641a1df..a9168ae6946c 100644
--- a/Documentation/devicetree/bindings/display/simple-framebuffer-sunxi.txt
+++ b/Documentation/devicetree/bindings/display/simple-framebuffer-sunxi.txt
@@ -28,6 +28,5 @@ chosen {
allwinner,pipeline = "de_be0-lcd0-hdmi";
clocks = <&pll5 1>, <&ahb_gates 36>, <&ahb_gates 43>,
<&ahb_gates 44>;
- status = "disabled";
};
};
diff --git a/Documentation/devicetree/bindings/display/sitronix,st7586.txt b/Documentation/devicetree/bindings/display/sitronix,st7586.txt
new file mode 100644
index 000000000000..1d0dad1210d3
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/sitronix,st7586.txt
@@ -0,0 +1,22 @@
+Sitronix ST7586 display panel
+
+Required properties:
+- compatible: "lego,ev3-lcd".
+- a0-gpios: The A0 signal (since this binding is for serial mode, this is
+ the pin labeled D1 on the controller, not the pin labeled A0)
+- reset-gpios: Reset pin
+
+The node for this driver must be a child node of a SPI controller, hence
+all mandatory properties described in ../spi/spi-bus.txt must be specified.
+
+Optional properties:
+- rotation: panel rotation in degrees counter clockwise (0,90,180,270)
+
+Example:
+ display@0{
+ compatible = "lego,ev3-lcd";
+ reg = <0>;
+ spi-max-frequency = <10000000>;
+ a0-gpios = <&gpio 43 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio 80 GPIO_ACTIVE_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt b/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
new file mode 100644
index 000000000000..74b5ac7b26d6
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
@@ -0,0 +1,137 @@
+* STMicroelectronics STM32 lcd-tft display controller
+
+- ltdc: lcd-tft display controller host
+ Required properties:
+ - compatible: "st,stm32-ltdc"
+ - reg: Physical base address of the IP registers and length of memory mapped region.
+ - clocks: A list of phandle + clock-specifier pairs, one for each
+ entry in 'clock-names'.
+ - clock-names: A list of clock names. For ltdc it should contain:
+ - "lcd" for the clock feeding the output pixel clock & IP clock.
+ - resets: reset to be used by the device (defined by use of RCC macro).
+ Required nodes:
+ - Video port for RGB output.
+
+* STMicroelectronics STM32 DSI controller specific extensions to Synopsys
+ DesignWare MIPI DSI host controller
+
+The STMicroelectronics STM32 DSI controller uses the Synopsys DesignWare MIPI
+DSI host controller. For all mandatory properties & nodes, please refer
+to the related documentation in [5].
+
+Mandatory properties specific to STM32 DSI:
+- #address-cells: Should be <1>.
+- #size-cells: Should be <0>.
+- compatible: "st,stm32-dsi".
+- clock-names:
+ - phy pll reference clock string name, must be "ref".
+- resets: see [5].
+- reset-names: see [5].
+
+Mandatory nodes specific to STM32 DSI:
+- ports: A node containing DSI input & output port nodes with endpoint
+ definitions as documented in [3] & [4].
+ - port@0: DSI input port node, connected to the ltdc rgb output port.
+ - port@1: DSI output port node, connected to a panel or a bridge input port.
+- panel or bridge node: A node containing the panel or bridge description as
+ documented in [6].
+ - port: panel or bridge port node, connected to the DSI output port (port@1).
+
+Note: You can find more documentation in the following references
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+[2] Documentation/devicetree/bindings/reset/reset.txt
+[3] Documentation/devicetree/bindings/media/video-interfaces.txt
+[4] Documentation/devicetree/bindings/graph.txt
+[5] Documentation/devicetree/bindings/display/bridge/dw_mipi_dsi.txt
+[6] Documentation/devicetree/bindings/display/mipi-dsi-bus.txt
+
+Example 1: RGB panel
+/ {
+ ...
+ soc {
+ ...
+ ltdc: display-controller@40016800 {
+ compatible = "st,stm32-ltdc";
+ reg = <0x40016800 0x200>;
+ interrupts = <88>, <89>;
+ resets = <&rcc STM32F4_APB2_RESET(LTDC)>;
+ clocks = <&rcc 1 CLK_LCD>;
+ clock-names = "lcd";
+
+ port {
+ ltdc_out_rgb: endpoint {
+ };
+ };
+ };
+ };
+};
+
+Example 2: DSI panel
+
+/ {
+ ...
+ soc {
+ ...
+ ltdc: display-controller@40016800 {
+ compatible = "st,stm32-ltdc";
+ reg = <0x40016800 0x200>;
+ interrupts = <88>, <89>;
+ resets = <&rcc STM32F4_APB2_RESET(LTDC)>;
+ clocks = <&rcc 1 CLK_LCD>;
+ clock-names = "lcd";
+
+ port {
+ ltdc_out_dsi: endpoint {
+ remote-endpoint = <&dsi_in>;
+ };
+ };
+ };
+
+
+ dsi: dsi@40016c00 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "st,stm32-dsi";
+ reg = <0x40016c00 0x800>;
+ clocks = <&rcc 1 CLK_F469_DSI>, <&clk_hse>;
+ clock-names = "ref", "pclk";
+ resets = <&rcc STM32F4_APB2_RESET(DSI)>;
+ reset-names = "apb";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dsi_in: endpoint {
+ remote-endpoint = <&ltdc_out_dsi>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dsi_out: endpoint {
+ remote-endpoint = <&dsi_in_panel>;
+ };
+ };
+
+ };
+
+ panel-dsi@0 {
+ reg = <0>; /* dsi virtual channel (0..3) */
+ compatible = ...;
+ enable-gpios = ...;
+
+ port {
+ dsi_in_panel: endpoint {
+ remote-endpoint = <&dsi_out>;
+ };
+ };
+
+ };
+
+ };
+
+ };
+};
diff --git a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
index 57a8d0610062..92441086caba 100644
--- a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
+++ b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
@@ -4,6 +4,62 @@ Allwinner A10 Display Pipeline
The Allwinner A10 Display pipeline is composed of several components
that are going to be documented below:
+For all connections between components up to the TCONs in the display
+pipeline, when there are multiple components of the same type at the
+same depth, the local endpoint ID must be the same as the remote
+component's index. For example, if the remote endpoint is Frontend 1,
+then the local endpoint ID must be 1.
+
+ Frontend 0 [0] ------- [0] Backend 0 [0] ------- [0] TCON 0
+ [1] -- -- [1] [1] -- -- [1]
+ \ / \ /
+ X X
+ / \ / \
+ [0] -- -- [0] [0] -- -- [0]
+ Frontend 1 [1] ------- [1] Backend 1 [1] ------- [1] TCON 1
+
+For a two pipeline system such as the one depicted above, the lines
+represent the connections between the components, while the numbers
+within the square brackets corresponds to the ID of the local endpoint.
+
+The same rule also applies to DE 2.0 mixer-TCON connections:
+
+ Mixer 0 [0] ----------- [0] TCON 0
+ [1] ---- ---- [1]
+ \ /
+ X
+ / \
+ [0] ---- ---- [0]
+ Mixer 1 [1] ----------- [1] TCON 1
+
+HDMI Encoder
+------------
+
+The HDMI Encoder supports the HDMI video and audio outputs, and does
+CEC. It is one end of the pipeline.
+
+Required properties:
+ - compatible: value must be one of:
+ * allwinner,sun5i-a10s-hdmi
+ - reg: base address and size of memory-mapped region
+ - interrupts: interrupt associated to this IP
+ - clocks: phandles to the clocks feeding the HDMI encoder
+ * ahb: the HDMI interface clock
+ * mod: the HDMI module clock
+ * pll-0: the first video PLL
+ * pll-1: the second video PLL
+ - clock-names: the clock names mentioned above
+ - dmas: phandles to the DMA channels used by the HDMI encoder
+ * ddc-tx: The channel for DDC transmission
+ * ddc-rx: The channel for DDC reception
+ * audio-tx: The channel used for audio transmission
+ - dma-names: the channel names mentioned above
+
+ - ports: A ports node with endpoint definitions as defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt. The
+ first port should be the input endpoint. The second should be the
+ output, usually to an HDMI connector.
+
TV Encoder
----------
@@ -31,6 +87,7 @@ Required properties:
* allwinner,sun6i-a31-tcon
* allwinner,sun6i-a31s-tcon
* allwinner,sun8i-a33-tcon
+ * allwinner,sun8i-v3s-tcon
- reg: base address and size of memory-mapped region
- interrupts: interrupt associated to this IP
- clocks: phandles to the clocks feeding the TCON. Three are needed:
@@ -47,12 +104,15 @@ Required properties:
Documentation/devicetree/bindings/media/video-interfaces.txt. The
first port should be the input endpoint, the second one the output
- The output should have two endpoints. The first is the block
- connected to the TCON channel 0 (usually a panel or a bridge), the
- second the block connected to the TCON channel 1 (usually the TV
- encoder)
+ The output may have multiple endpoints. The TCON has two channels,
+ usually with the first channel being used for the panels interfaces
+ (RGB, LVDS, etc.), and the second being used for the outputs that
+ require another controller (TV Encoder, HDMI, etc.). The endpoints
+ will take an extra property, allwinner,tcon-channel, to specify the
+ channel the endpoint is associated to. If that property is not
+ present, the endpoint number will be used as the channel number.
-On SoCs other than the A33, there is one more clock required:
+On SoCs other than the A33 and V3s, there is one more clock required:
- 'tcon-ch1': The clock driving the TCON channel 1
DRC
@@ -138,6 +198,26 @@ Required properties:
Documentation/devicetree/bindings/media/video-interfaces.txt. The
first port should be the input endpoints, the second one the outputs
+Display Engine 2.0 Mixer
+------------------------
+
+The DE2 mixer have many functionalities, currently only layer blending is
+supported.
+
+Required properties:
+ - compatible: value must be one of:
+ * allwinner,sun8i-v3s-de2-mixer
+ - reg: base address and size of the memory-mapped region.
+ - clocks: phandles to the clocks feeding the mixer
+ * bus: the mixer interface clock
+ * mod: the mixer module clock
+ - clock-names: the clock names mentioned above
+ - resets: phandles to the reset controllers driving the mixer
+
+- ports: A ports node with endpoint definitions as defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt. The
+ first port should be the input endpoints, the second one the output
+
Display Engine Pipeline
-----------------------
@@ -148,13 +228,15 @@ extra node.
Required properties:
- compatible: value must be one of:
+ * allwinner,sun5i-a10s-display-engine
* allwinner,sun5i-a13-display-engine
* allwinner,sun6i-a31-display-engine
* allwinner,sun6i-a31s-display-engine
* allwinner,sun8i-a33-display-engine
+ * allwinner,sun8i-v3s-display-engine
- allwinner,pipelines: list of phandle to the display engine
- frontends available.
+ frontends (DE 1.0) or mixers (DE 2.0) available.
Example:
@@ -173,6 +255,56 @@ panel: panel {
};
};
+connector {
+ compatible = "hdmi-connector";
+ type = "a";
+
+ port {
+ hdmi_con_in: endpoint {
+ remote-endpoint = <&hdmi_out_con>;
+ };
+ };
+};
+
+hdmi: hdmi@01c16000 {
+ compatible = "allwinner,sun5i-a10s-hdmi";
+ reg = <0x01c16000 0x1000>;
+ interrupts = <58>;
+ clocks = <&ccu CLK_AHB_HDMI>, <&ccu CLK_HDMI>,
+ <&ccu CLK_PLL_VIDEO0_2X>,
+ <&ccu CLK_PLL_VIDEO1_2X>;
+ clock-names = "ahb", "mod", "pll-0", "pll-1";
+ dmas = <&dma SUN4I_DMA_NORMAL 16>,
+ <&dma SUN4I_DMA_NORMAL 16>,
+ <&dma SUN4I_DMA_DEDICATED 24>;
+ dma-names = "ddc-tx", "ddc-rx", "audio-tx";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ hdmi_in_tcon0: endpoint {
+ remote-endpoint = <&tcon0_out_hdmi>;
+ };
+ };
+
+ port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ hdmi_out_con: endpoint {
+ remote-endpoint = <&hdmi_con_in>;
+ };
+ };
+ };
+};
+
tve0: tv-encoder@01c0a000 {
compatible = "allwinner,sun4i-a10-tv-encoder";
reg = <0x01c0a000 0x1000>;
diff --git a/Documentation/devicetree/bindings/display/zte,vou.txt b/Documentation/devicetree/bindings/display/zte,vou.txt
index 9c356284232b..38476475fd60 100644
--- a/Documentation/devicetree/bindings/display/zte,vou.txt
+++ b/Documentation/devicetree/bindings/display/zte,vou.txt
@@ -58,6 +58,18 @@ Required properties:
integer cells. The first cell is the offset of SYSCTRL register used
to control TV Encoder DAC power, and the second cell is the bit mask.
+* VGA output device
+
+Required properties:
+ - compatible: should be "zte,zx296718-vga"
+ - reg: Physical base address and length of the VGA device IO region
+ - interrupts : VGA interrupt number to CPU
+ - clocks: Phandle with clock-specifier pointing to VGA I2C clock.
+ - clock-names: Must be "i2c_wclk".
+ - zte,vga-power-control: the phandle to SYSCTRL block followed by two
+ integer cells. The first cell is the offset of SYSCTRL register used
+ to control VGA DAC power, and the second cell is the bit mask.
+
Example:
vou: vou@1440000 {
@@ -81,6 +93,15 @@ vou: vou@1440000 {
"main_wclk", "aux_wclk";
};
+ vga: vga@8000 {
+ compatible = "zte,zx296718-vga";
+ reg = <0x8000 0x1000>;
+ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&topcrm VGA_I2C_WCLK>;
+ clock-names = "i2c_wclk";
+ zte,vga-power-control = <&sysctrl 0x170 0xe0>;
+ };
+
hdmi: hdmi@c000 {
compatible = "zte,zx296718-hdmi";
reg = <0xc000 0x4000>;
diff --git a/Documentation/devicetree/bindings/dma/arm-pl08x.txt b/Documentation/devicetree/bindings/dma/arm-pl08x.txt
index 8a0097a029d3..0ba81f79266f 100644
--- a/Documentation/devicetree/bindings/dma/arm-pl08x.txt
+++ b/Documentation/devicetree/bindings/dma/arm-pl08x.txt
@@ -3,6 +3,11 @@
Required properties:
- compatible: "arm,pl080", "arm,primecell";
"arm,pl081", "arm,primecell";
+ "faraday,ftdmac020", "arm,primecell"
+- arm,primecell-periphid: on the FTDMAC020 the primecell ID is not hard-coded
+ in the hardware and must be specified here as <0x0003b080>. This number
+ follows the PrimeCell standard numbering using the JEP106 vendor code 0x38
+ for Faraday Technology.
- reg: Address range of the PL08x registers
- interrupt: The PL08x interrupt number
- clocks: The clock running the IP core clock
@@ -20,8 +25,8 @@ Optional properties:
- dma-requests: contains the total number of DMA requests supported by the DMAC
- memcpy-burst-size: the size of the bursts for memcpy: 1, 4, 8, 16, 32
64, 128 or 256 bytes are legal values
-- memcpy-bus-width: the bus width used for memcpy: 8, 16 or 32 are legal
- values
+- memcpy-bus-width: the bus width used for memcpy in bits: 8, 16 or 32 are legal
+ values, the Faraday FTDMAC020 can also accept 64 bits
Clients
Required properties:
diff --git a/Documentation/devicetree/bindings/dma/brcm,iproc-sba.txt b/Documentation/devicetree/bindings/dma/brcm,iproc-sba.txt
new file mode 100644
index 000000000000..092913a28457
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/brcm,iproc-sba.txt
@@ -0,0 +1,29 @@
+* Broadcom SBA RAID engine
+
+Required properties:
+- compatible: Should be one of the following
+ "brcm,iproc-sba"
+ "brcm,iproc-sba-v2"
+ The "brcm,iproc-sba" has support for only 6 PQ coefficients
+ The "brcm,iproc-sba-v2" has support for only 30 PQ coefficients
+- mboxes: List of phandle and mailbox channel specifiers
+
+Example:
+
+raid_mbox: mbox@67400000 {
+ ...
+ #mbox-cells = <3>;
+ ...
+};
+
+raid0 {
+ compatible = "brcm,iproc-sba-v2";
+ mboxes = <&raid_mbox 0 0x1 0xffff>,
+ <&raid_mbox 1 0x1 0xffff>,
+ <&raid_mbox 2 0x1 0xffff>,
+ <&raid_mbox 3 0x1 0xffff>,
+ <&raid_mbox 4 0x1 0xffff>,
+ <&raid_mbox 5 0x1 0xffff>,
+ <&raid_mbox 6 0x1 0xffff>,
+ <&raid_mbox 7 0x1 0xffff>;
+};
diff --git a/Documentation/devicetree/bindings/dma/fsl-edma.txt b/Documentation/devicetree/bindings/dma/fsl-edma.txt
index 191d7bd8a6fe..97e213e07660 100644
--- a/Documentation/devicetree/bindings/dma/fsl-edma.txt
+++ b/Documentation/devicetree/bindings/dma/fsl-edma.txt
@@ -72,5 +72,4 @@ sai2: sai@40031000 {
dma-names = "tx", "rx";
dmas = <&edma0 0 21>,
<&edma0 0 20>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/dma/mv-xor.txt b/Documentation/devicetree/bindings/dma/mv-xor.txt
index c075f5988135..0ffb4d8766a8 100644
--- a/Documentation/devicetree/bindings/dma/mv-xor.txt
+++ b/Documentation/devicetree/bindings/dma/mv-xor.txt
@@ -30,7 +30,6 @@ xor@d0060900 {
reg = <0xd0060900 0x100
0xd0060b00 0x100>;
clocks = <&coreclk 0>;
- status = "okay";
xor00 {
interrupts = <51>;
diff --git a/Documentation/devicetree/bindings/dma/qcom_adm.txt b/Documentation/devicetree/bindings/dma/qcom_adm.txt
index 9bcab9115982..9d3b2f917b7b 100644
--- a/Documentation/devicetree/bindings/dma/qcom_adm.txt
+++ b/Documentation/devicetree/bindings/dma/qcom_adm.txt
@@ -48,7 +48,6 @@ Each dmas request consists of 3 cells:
Example:
spi4: spi@1a280000 {
- status = "ok";
spi-max-frequency = <50000000>;
pinctrl-0 = <&spi_pins>;
diff --git a/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.txt b/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.txt
index 3316a9c2e638..891db41e9420 100644
--- a/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.txt
+++ b/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.txt
@@ -25,13 +25,15 @@ Required Properties:
- "renesas,dmac-r8a7794" (R-Car E2)
- "renesas,dmac-r8a7795" (R-Car H3)
- "renesas,dmac-r8a7796" (R-Car M3-W)
+ - "renesas,dmac-r8a77970" (R-Car V3M)
- reg: base address and length of the registers block for the DMAC
- interrupts: interrupt specifiers for the DMAC, one for each entry in
interrupt-names.
-- interrupt-names: one entry per channel, named "ch%u", where %u is the
- channel number ranging from zero to the number of channels minus one.
+- interrupt-names: one entry for the error interrupt, named "error", plus one
+ entry per channel, named "ch%u", where %u is the channel number ranging from
+ zero to the number of channels minus one.
- clock-names: "fck" for the functional clock
- clocks: a list of phandle + clock-specifier pairs, one for each entry
diff --git a/Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt b/Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt
index e7780a186a36..1be6941ac1e5 100644
--- a/Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt
+++ b/Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt
@@ -8,6 +8,7 @@ Required Properties:
- "renesas,r8a7793-usb-dmac" (R-Car M2-N)
- "renesas,r8a7794-usb-dmac" (R-Car E2)
- "renesas,r8a7795-usb-dmac" (R-Car H3)
+ - "renesas,r8a7796-usb-dmac" (R-Car M3-W)
- reg: base address and length of the registers block for the DMAC
- interrupts: interrupt specifiers for the DMAC, one for each entry in
interrupt-names.
diff --git a/Documentation/devicetree/bindings/dma/shdma.txt b/Documentation/devicetree/bindings/dma/shdma.txt
index 2a3f3b8946b9..a91920a49433 100644
--- a/Documentation/devicetree/bindings/dma/shdma.txt
+++ b/Documentation/devicetree/bindings/dma/shdma.txt
@@ -1,6 +1,6 @@
* SHDMA Device Tree bindings
-Sh-/r-mobile and r-car systems often have multiple identical DMA controller
+Sh-/r-mobile and R-Car systems often have multiple identical DMA controller
instances, capable of serving any of a common set of DMA slave devices, using
the same configuration. To describe this topology we require all compatible
SHDMA DT nodes to be placed under a DMA multiplexer node. All such compatible
diff --git a/Documentation/devicetree/bindings/dma/snps-dma.txt b/Documentation/devicetree/bindings/dma/snps-dma.txt
index 4775c66f4508..a122723907ac 100644
--- a/Documentation/devicetree/bindings/dma/snps-dma.txt
+++ b/Documentation/devicetree/bindings/dma/snps-dma.txt
@@ -63,7 +63,6 @@ Example:
compatible = "arm,pl011", "arm,primecell";
reg = <0xe0000000 0x1000>;
interrupts = <0 35 0x4>;
- status = "disabled";
dmas = <&dmahost 12 0 1>,
<&dmahost 13 0 1 0>;
dma-names = "rx", "rx";
diff --git a/Documentation/devicetree/bindings/dma/st_fdma.txt b/Documentation/devicetree/bindings/dma/st_fdma.txt
index 495d853c569b..52cfec9e77ad 100644
--- a/Documentation/devicetree/bindings/dma/st_fdma.txt
+++ b/Documentation/devicetree/bindings/dma/st_fdma.txt
@@ -69,7 +69,6 @@ Example:
sti_uni_player2: sti-uni-player@2 {
compatible = "st,sti-uni-player";
- status = "disabled";
#sound-dai-cells = <0>;
st,syscfg = <&syscfg_core>;
clocks = <&clk_s_d0_flexgen CLK_PCM_2>;
diff --git a/Documentation/devicetree/bindings/dma/ste-dma40.txt b/Documentation/devicetree/bindings/dma/ste-dma40.txt
index 95800ab37bb0..aa7dbd565ad0 100644
--- a/Documentation/devicetree/bindings/dma/ste-dma40.txt
+++ b/Documentation/devicetree/bindings/dma/ste-dma40.txt
@@ -135,5 +135,4 @@ Example:
<&dma 13 0 0x0>; /* Logical - MemToDev */
dma-names = "rx", "rx";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/dma/sun4i-dma.txt b/Documentation/devicetree/bindings/dma/sun4i-dma.txt
index f1634a27a830..3b484380c56a 100644
--- a/Documentation/devicetree/bindings/dma/sun4i-dma.txt
+++ b/Documentation/devicetree/bindings/dma/sun4i-dma.txt
@@ -40,7 +40,6 @@ Example:
clock-names = "ahb", "mod";
dmas = <&dma 1 29>, <&dma 1 28>;
dma-names = "rx", "tx";
- status = "disabled";
#address-cells = <1>;
#size-cells = <0>;
};
diff --git a/Documentation/devicetree/bindings/dma/sun6i-dma.txt b/Documentation/devicetree/bindings/dma/sun6i-dma.txt
index 6b267045f522..98fbe1a5c6dd 100644
--- a/Documentation/devicetree/bindings/dma/sun6i-dma.txt
+++ b/Documentation/devicetree/bindings/dma/sun6i-dma.txt
@@ -9,6 +9,7 @@ Required properties:
"allwinner,sun8i-a23-dma"
"allwinner,sun8i-a83t-dma"
"allwinner,sun8i-h3-dma"
+ "allwinner,sun8i-v3s-dma"
- reg: Should contain the registers base address and length
- interrupts: Should contain a reference to the interrupt used by this device
- clocks: Should contain a reference to the parent AHB clock
diff --git a/Documentation/devicetree/bindings/dma/ti-dma-crossbar.txt b/Documentation/devicetree/bindings/dma/ti-dma-crossbar.txt
index aead5869a28d..b849a1ed389d 100644
--- a/Documentation/devicetree/bindings/dma/ti-dma-crossbar.txt
+++ b/Documentation/devicetree/bindings/dma/ti-dma-crossbar.txt
@@ -62,7 +62,6 @@ uart1: serial@4806a000 {
interrupts-extended = <&gic GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "uart1";
clock-frequency = <48000000>;
- status = "disabled";
/* Requesting crossbar input 49 and 50 */
dmas = <&sdma_xbar 49>, <&sdma_xbar 50>;
dma-names = "tx", "rx";
diff --git a/Documentation/devicetree/bindings/dma/ti-edma.txt b/Documentation/devicetree/bindings/dma/ti-edma.txt
index 18090e7226b4..41f0c1a07c56 100644
--- a/Documentation/devicetree/bindings/dma/ti-edma.txt
+++ b/Documentation/devicetree/bindings/dma/ti-edma.txt
@@ -9,7 +9,12 @@ execute the actual DMA tansfer.
eDMA3 Channel Controller
Required properties:
-- compatible: "ti,edma3-tpcc" for the channel controller(s)
+--------------------
+- compatible: Should be:
+ - "ti,edma3-tpcc" for the channel controller(s) on OMAP,
+ AM33xx and AM43xx SoCs.
+ - "ti,k2g-edma3-tpcc", "ti,edma3-tpcc" for the
+ channel controller(s) on 66AK2G.
- #dma-cells: Should be set to <2>. The first number is the DMA request
number and the second is the TC the channel is serviced on.
- reg: Memory map of eDMA CC
@@ -19,8 +24,19 @@ Required properties:
- ti,tptcs: List of TPTCs associated with the eDMA in the following form:
<&tptc_phandle TC_priority_number>. The highest priority is 0.
+SoC-specific Required properties:
+--------------------------------
+The following are mandatory properties for OMAP, AM33xx and AM43xx SoCs only:
+- ti,hwmods: Name of the hwmods associated to the eDMA CC.
+
+The following are mandatory properties for 66AK2G SoCs only:
+- power-domains:Should contain a phandle to a PM domain provider node
+ and an args specifier containing the device id
+ value. This property is as per the binding,
+ Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
+
Optional properties:
-- ti,hwmods: Name of the hwmods associated to the eDMA CC
+-------------------
- ti,edma-memcpy-channels: List of channels allocated to be used for memcpy, iow
these channels will be SW triggered channels. See example.
- ti,edma-reserved-slot-ranges: PaRAM slot ranges which should not be used by
@@ -31,17 +47,34 @@ Optional properties:
eDMA3 Transfer Controller
Required properties:
-- compatible: "ti,edma3-tptc" for the transfer controller(s)
+--------------------
+- compatible: Should be:
+ - "ti,edma3-tptc" for the transfer controller(s) on OMAP,
+ AM33xx and AM43xx SoCs.
+ - "ti,k2g-edma3-tptc", "ti,edma3-tptc" for the
+ transfer controller(s) on 66AK2G.
- reg: Memory map of eDMA TC
- interrupts: Interrupt number for TCerrint.
+SoC-specific Required properties:
+--------------------------------
+The following are mandatory properties for OMAP, AM33xx and AM43xx SoCs only:
+- ti,hwmods: Name of the hwmods associated to the eDMA TC.
+
+The following are mandatory properties for 66AK2G SoCs only:
+- power-domains:Should contain a phandle to a PM domain provider node
+ and an args specifier containing the device id
+ value. This property is as per the binding,
+ Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
+
Optional properties:
-- ti,hwmods: Name of the hwmods associated to the given eDMA TC
+-------------------
- interrupt-names: "edma3_tcerrint"
------------------------------------------------------------------------------
-Example:
+Examples:
+1.
edma: edma@49000000 {
compatible = "ti,edma3-tpcc";
ti,hwmods = "tpcc";
@@ -102,13 +135,64 @@ mcasp0: mcasp@48038000 {
reg-names = "mpu", "dat";
interrupts = <80>, <81>;
interrupt-names = "tx", "rx";
- status = "disabled";
/* DMA channels 8 and 9 executed on eDMA TC2 - high priority queue */
dmas = <&edma 8 2>,
<&edma 9 2>;
dma-names = "tx", "rx";
};
+2.
+edma1: edma@02728000 {
+ compatible = "ti,k2g-edma3-tpcc", "ti,edma3-tpcc";
+ reg = <0x02728000 0x8000>;
+ reg-names = "edma3_cc";
+ interrupts = <GIC_SPI 208 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 219 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 220 IRQ_TYPE_EDGE_RISING>;
+ interrupt-names = "edma3_ccint", "emda3_mperr",
+ "edma3_ccerrint";
+ dma-requests = <64>;
+ #dma-cells = <2>;
+
+ ti,tptcs = <&edma1_tptc0 7>, <&edma1_tptc1 0>;
+
+ /*
+ * memcpy is disabled, can be enabled with:
+ * ti,edma-memcpy-channels = <12 13 14 15>;
+ * for example.
+ */
+
+ power-domains = <&k2g_pds 0x4f>;
+};
+
+edma1_tptc0: tptc@027b0000 {
+ compatible = "ti,k2g-edma3-tptc", "ti,edma3-tptc";
+ reg = <0x027b0000 0x400>;
+ power-domains = <&k2g_pds 0x4f>;
+};
+
+edma1_tptc1: tptc@027b8000 {
+ compatible = "ti, k2g-edma3-tptc", "ti,edma3-tptc";
+ reg = <0x027b8000 0x400>;
+ power-domains = <&k2g_pds 0x4f>;
+};
+
+mmc0: mmc@23000000 {
+ compatible = "ti,k2g-hsmmc", "ti,omap4-hsmmc";
+ reg = <0x23000000 0x400>;
+ interrupts = <GIC_SPI 96 IRQ_TYPE_EDGE_RISING>;
+ dmas = <&edma1 24 0>, <&edma1 25 0>;
+ dma-names = "tx", "rx";
+ bus-width = <4>;
+ ti,needs-special-reset;
+ no-1-8-v;
+ max-frequency = <96000000>;
+ power-domains = <&k2g_pds 0xb>;
+ clocks = <&k2g_clks 0xb 1>, <&k2g_clks 0xb 2>;
+ clock-names = "fck", "mmchsdb_fck";
+ status = "disabled";
+};
+
------------------------------------------------------------------------------
DEPRECATED binding, new DTS files must use the ti,edma3-tpcc/ti,edma3-tptc
binding.
diff --git a/Documentation/devicetree/bindings/eeprom/eeprom.txt b/Documentation/devicetree/bindings/eeprom/eeprom.txt
index 5696eb508e95..afc04589eadf 100644
--- a/Documentation/devicetree/bindings/eeprom/eeprom.txt
+++ b/Documentation/devicetree/bindings/eeprom/eeprom.txt
@@ -16,8 +16,12 @@ Required properties:
"renesas,r1ex24002"
+ The following manufacturers values have been deprecated:
+ "at", "at24"
+
If there is no specific driver for <manufacturer>, a generic
- driver based on <type> is selected. Possible types are:
+ device with <type> and manufacturer "atmel" should be used.
+ Possible types are:
"24c00", "24c01", "24c02", "24c04", "24c08", "24c16", "24c32", "24c64",
"24c128", "24c256", "24c512", "24c1024", "spd"
diff --git a/Documentation/devicetree/bindings/extcon/extcon-usbc-cros-ec.txt b/Documentation/devicetree/bindings/extcon/extcon-usbc-cros-ec.txt
new file mode 100644
index 000000000000..8e8625c00dfa
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/extcon-usbc-cros-ec.txt
@@ -0,0 +1,24 @@
+ChromeOS EC USB Type-C cable and accessories detection
+
+On ChromeOS systems with USB Type C ports, the ChromeOS Embedded Controller is
+able to detect the state of external accessories such as display adapters
+or USB devices when said accessories are attached or detached.
+
+The node for this device must be under a cros-ec node like google,cros-ec-spi
+or google,cros-ec-i2c.
+
+Required properties:
+- compatible: Should be "google,extcon-usbc-cros-ec".
+- google,usb-port-id: Specifies the USB port ID to use.
+
+Example:
+ cros-ec@0 {
+ compatible = "google,cros-ec-i2c";
+
+ ...
+
+ extcon {
+ compatible = "google,extcon-usbc-cros-ec";
+ google,usb-port-id = <0>;
+ };
+ }
diff --git a/Documentation/devicetree/bindings/fpga/altera-passive-serial.txt b/Documentation/devicetree/bindings/fpga/altera-passive-serial.txt
new file mode 100644
index 000000000000..48478bc07e29
--- /dev/null
+++ b/Documentation/devicetree/bindings/fpga/altera-passive-serial.txt
@@ -0,0 +1,29 @@
+Altera Passive Serial SPI FPGA Manager
+
+Altera FPGAs support a method of loading the bitstream over what is
+referred to as "passive serial".
+The passive serial link is not technically SPI, and might require extra
+circuits in order to play nicely with other SPI slaves on the same bus.
+
+See https://www.altera.com/literature/hb/cyc/cyc_c51013.pdf
+
+Required properties:
+- compatible: Must be one of the following:
+ "altr,fpga-passive-serial",
+ "altr,fpga-arria10-passive-serial"
+- reg: SPI chip select of the FPGA
+- nconfig-gpios: config pin (referred to as nCONFIG in the manual)
+- nstat-gpios: status pin (referred to as nSTATUS in the manual)
+
+Optional properties:
+- confd-gpios: confd pin (referred to as CONF_DONE in the manual)
+
+Example:
+ fpga: fpga@0 {
+ compatible = "altr,fpga-passive-serial";
+ spi-max-frequency = <20000000>;
+ reg = <0>;
+ nconfig-gpios = <&gpio4 9 GPIO_ACTIVE_LOW>;
+ nstat-gpios = <&gpio4 11 GPIO_ACTIVE_LOW>;
+ confd-gpios = <&gpio4 12 GPIO_ACTIVE_LOW>;
+ };
diff --git a/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt b/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt
new file mode 100644
index 000000000000..8dcfba926bc7
--- /dev/null
+++ b/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt
@@ -0,0 +1,36 @@
+Xilinx LogiCORE Partial Reconfig Decoupler Softcore
+
+The Xilinx LogiCORE Partial Reconfig Decoupler manages one or more
+decouplers / fpga bridges.
+The controller can decouple/disable the bridges which prevents signal
+changes from passing through the bridge. The controller can also
+couple / enable the bridges which allows traffic to pass through the
+bridge normally.
+
+The Driver supports only MMIO handling. A PR region can have multiple
+PR Decouplers which can be handled independently or chained via decouple/
+decouple_status signals.
+
+Required properties:
+- compatible : Should contain "xlnx,pr-decoupler-1.00" followed by
+ "xlnx,pr-decoupler"
+- regs : base address and size for decoupler module
+- clocks : input clock to IP
+- clock-names : should contain "aclk"
+
+Optional properties:
+- bridge-enable : 0 if driver should disable bridge at startup
+ 1 if driver should enable bridge at startup
+ Default is to leave bridge in current state.
+
+See Documentation/devicetree/bindings/fpga/fpga-region.txt for generic bindings.
+
+Example:
+ fpga-bridge@100000450 {
+ compatible = "xlnx,pr-decoupler-1.00",
+ "xlnx-pr-decoupler";
+ regs = <0x10000045 0x10>;
+ clocks = <&clkc 15>;
+ clock-names = "aclk";
+ bridge-enable = <0>;
+ };
diff --git a/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt b/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt
index 9766f7472f51..cfa4ed42b62f 100644
--- a/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt
+++ b/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt
@@ -31,7 +31,6 @@ Example for full FPGA configuration:
cell-index = <1>;
interrupts = <92>;
clocks = <&coreclk 0>;
- status = "okay";
fpga_mgr_spi: fpga-mgr@0 {
compatible = "xlnx,fpga-slave-serial";
diff --git a/Documentation/devicetree/bindings/fsi/fsi-master-gpio.txt b/Documentation/devicetree/bindings/fsi/fsi-master-gpio.txt
new file mode 100644
index 000000000000..a767259dedad
--- /dev/null
+++ b/Documentation/devicetree/bindings/fsi/fsi-master-gpio.txt
@@ -0,0 +1,24 @@
+Device-tree bindings for gpio-based FSI master driver
+-----------------------------------------------------
+
+Required properties:
+ - compatible = "fsi-master-gpio";
+ - clock-gpios = <gpio-descriptor>; : GPIO for FSI clock
+ - data-gpios = <gpio-descriptor>; : GPIO for FSI data signal
+
+Optional properties:
+ - enable-gpios = <gpio-descriptor>; : GPIO for enable signal
+ - trans-gpios = <gpio-descriptor>; : GPIO for voltage translator enable
+ - mux-gpios = <gpio-descriptor>; : GPIO for pin multiplexing with other
+ functions (eg, external FSI masters)
+
+Examples:
+
+ fsi-master {
+ compatible = "fsi-master-gpio", "fsi-master";
+ clock-gpios = <&gpio 0>;
+ data-gpios = <&gpio 1>;
+ enable-gpios = <&gpio 2>;
+ trans-gpios = <&gpio 3>;
+ mux-gpios = <&gpio 4>;
+ }
diff --git a/Documentation/devicetree/bindings/gpio/gpio-74x164.txt b/Documentation/devicetree/bindings/gpio/gpio-74x164.txt
index ce1b2231bf5d..2a97553d8d76 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-74x164.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-74x164.txt
@@ -12,6 +12,9 @@ Required properties:
1 = active low
- registers-number: Number of daisy-chained shift registers
+Optional properties:
+- enable-gpios: GPIO connected to the OE (Output Enable) pin.
+
Example:
gpio5: gpio5@0 {
diff --git a/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt b/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt
index c756afa88cc6..fc6378c778c5 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt
@@ -18,7 +18,7 @@ Required properties:
Optional properties:
- interrupt-parent : The parent interrupt controller, optional if inherited
-- clocks : A phandle to the HPLL clock node for debounce timings
+- clocks : A phandle to the clock to use for debounce timings
The gpio and interrupt properties are further described in their respective
bindings documentation:
diff --git a/Documentation/devicetree/bindings/gpio/gpio-davinci.txt b/Documentation/devicetree/bindings/gpio/gpio-davinci.txt
index 5079ba7d6568..8beb0539b6d8 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-davinci.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-davinci.txt
@@ -1,7 +1,10 @@
Davinci/Keystone GPIO controller bindings
Required Properties:
-- compatible: should be "ti,dm6441-gpio", "ti,keystone-gpio"
+- compatible: should be "ti,dm6441-gpio": for Davinci da850 SoCs
+ "ti,keystone-gpio": for Keystone 2 66AK2H/K, 66AK2L,
+ 66AK2E SoCs
+ "ti,k2g-gpio", "ti,keystone-gpio": for 66AK2G
- reg: Physical base address of the controller and the size of memory mapped
registers.
@@ -20,7 +23,21 @@ Required Properties:
- ti,ngpio: The number of GPIO pins supported.
- ti,davinci-gpio-unbanked: The number of GPIOs that have an individual interrupt
- line to processor.
+ line to processor.
+
+- clocks: Should contain the device's input clock, and should be defined as per
+ the appropriate clock bindings consumer usage in,
+
+ Documentation/devicetree/bindings/clock/keystone-gate.txt
+ for 66AK2HK/66AK2L/66AK2E SoCs or,
+
+ Documentation/devicetree/bindings/clock/ti,sci-clk.txt
+ for 66AK2G SoCs
+
+- clock-names: Name should be "gpio";
+
+Currently clock-names and clocks are needed for all keystone 2 platforms
+Davinci platforms do not have DT clocks as of now.
The GPIO controller also acts as an interrupt controller. It uses the default
two cells specifier as described in Documentation/devicetree/bindings/
@@ -60,3 +77,73 @@ leds {
...
};
};
+
+Example for 66AK2G:
+
+gpio0: gpio@2603000 {
+ compatible = "ti,k2g-gpio", "ti,keystone-gpio";
+ reg = <0x02603000 0x100>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupts = <GIC_SPI 432 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 433 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 434 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 435 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 436 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 437 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 438 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 439 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 440 IRQ_TYPE_EDGE_RISING>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ ti,ngpio = <144>;
+ ti,davinci-gpio-unbanked = <0>;
+ clocks = <&k2g_clks 0x001b 0x0>;
+ clock-names = "gpio";
+};
+
+Example for 66AK2HK/66AK2L/66AK2E:
+
+gpio0: gpio@260bf00 {
+ compatible = "ti,keystone-gpio";
+ reg = <0x0260bf00 0x100>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ /* HW Interrupts mapped to GPIO pins */
+ interrupts = <GIC_SPI 120 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 121 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 122 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 123 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 124 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 125 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 126 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 127 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 128 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 129 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 130 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 131 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 132 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 133 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 134 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 135 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 136 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 137 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 138 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 139 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 140 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 141 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 142 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 143 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 144 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 145 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 146 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 147 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 148 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 149 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 150 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 151 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkgpio>;
+ clock-names = "gpio";
+ ti,ngpio = <32>;
+ ti,davinci-gpio-unbanked = <32>;
+};
diff --git a/Documentation/devicetree/bindings/gpio/gpio-exar.txt b/Documentation/devicetree/bindings/gpio/gpio-exar.txt
new file mode 100644
index 000000000000..4540d61824af
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-exar.txt
@@ -0,0 +1,5 @@
+Exportable MPIO interface of Exar UART chips
+
+Required properties of the device:
+ - exar,first-pin: first exportable pins (0..15)
+ - ngpios: number of exportable pins (1..16)
diff --git a/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt b/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt
index 4b6cc632ca5c..69d46162d0f5 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt
@@ -23,7 +23,6 @@ gpio0: gpio@1100 {
#gpio-cells = <2>;
reg = <0x1100 0x080>;
interrupts = <78 0x8>;
- status = "okay";
};
Example of gpio-controller node for a ls2080a SoC:
diff --git a/Documentation/devicetree/bindings/gpio/gpio-mvebu.txt b/Documentation/devicetree/bindings/gpio/gpio-mvebu.txt
index 01e331a5f3e7..38ca2201e8ae 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-mvebu.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-mvebu.txt
@@ -2,17 +2,27 @@
Required properties:
-- compatible : Should be "marvell,orion-gpio", "marvell,mv78200-gpio"
- or "marvell,armadaxp-gpio". "marvell,orion-gpio" should be used for
- Orion, Kirkwood, Dove, Discovery (except MV78200) and Armada
- 370. "marvell,mv78200-gpio" should be used for the Discovery
- MV78200. "marvel,armadaxp-gpio" should be used for all Armada XP
- SoCs (MV78230, MV78260, MV78460).
+- compatible : Should be "marvell,orion-gpio", "marvell,mv78200-gpio",
+ "marvell,armadaxp-gpio" or "marvell,armada-8k-gpio".
+
+ "marvell,orion-gpio" should be used for Orion, Kirkwood, Dove,
+ Discovery (except MV78200) and Armada 370. "marvell,mv78200-gpio"
+ should be used for the Discovery MV78200.
+
+ "marvel,armadaxp-gpio" should be used for all Armada XP SoCs
+ (MV78230, MV78260, MV78460).
+
+ "marvell,armada-8k-gpio" should be used for the Armada 7K and 8K
+ SoCs (either from AP or CP), see
+ Documentation/devicetree/bindings/arm/marvell/cp110-system-controller0.txt
+ and
+ Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
+ for specific details about the offset property.
- reg: Address and length of the register set for the device. Only one
entry is expected, except for the "marvell,armadaxp-gpio" variant
for which two entries are expected: one for the general registers,
- one for the per-cpu registers.
+ one for the per-cpu registers. Not used for marvell,armada-8k-gpio.
- interrupts: The list of interrupts that are used for all the pins
managed by this GPIO bank. There can be more than one interrupt
diff --git a/Documentation/devicetree/bindings/gpio/gpio-vf610.txt b/Documentation/devicetree/bindings/gpio/gpio-vf610.txt
index 436cc99c6598..0ccbae44019c 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-vf610.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-vf610.txt
@@ -5,7 +5,9 @@ functionality. Each pair serves 32 GPIOs. The VF610 has 5 instances of
each, and each PORT module has its own interrupt.
Required properties for GPIO node:
-- compatible : Should be "fsl,<soc>-gpio", currently "fsl,vf610-gpio"
+- compatible : Should be "fsl,<soc>-gpio", below is supported list:
+ "fsl,vf610-gpio"
+ "fsl,imx7ulp-gpio"
- reg : The first reg tuple represents the PORT module, the second tuple
the GPIO module.
- interrupts : Should be the port interrupt shared by all 32 pins.
diff --git a/Documentation/devicetree/bindings/gpio/gpio.txt b/Documentation/devicetree/bindings/gpio/gpio.txt
index 84ede036f73d..802402f6cc5d 100644
--- a/Documentation/devicetree/bindings/gpio/gpio.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio.txt
@@ -74,11 +74,14 @@ GPIO pin number, and GPIO flags as accepted by the "qe_pio_e" gpio-controller.
Optional standard bitfield specifiers for the last cell:
- Bit 0: 0 means active high, 1 means active low
-- Bit 1: 1 means single-ended wiring, see:
+- Bit 1: 0 mean push-pull wiring, see:
+ https://en.wikipedia.org/wiki/Push-pull_output
+ 1 means single-ended wiring, see:
https://en.wikipedia.org/wiki/Single-ended_triode
- When used with active-low, this means open drain/collector, see:
+- Bit 2: 0 means open-source, 1 means open drain, see:
https://en.wikipedia.org/wiki/Open_collector
- When used with active-high, this means open source/emitter
+- Bit 3: 0 means the output should be maintained during sleep/low-power mode
+ 1 means the output state can be lost during sleep/low-power mode
1.1) GPIO specifier best practices
----------------------------------
@@ -282,8 +285,8 @@ Example 1:
};
Here, a single GPIO controller has GPIOs 0..9 routed to pin controller
-pinctrl1's pins 20..29, and GPIOs 10..19 routed to pin controller pinctrl2's
-pins 50..59.
+pinctrl1's pins 20..29, and GPIOs 10..29 routed to pin controller pinctrl2's
+pins 50..69.
Example 2:
diff --git a/Documentation/devicetree/bindings/gpio/gpio_atmel.txt b/Documentation/devicetree/bindings/gpio/gpio_atmel.txt
index 85f8c0d084fa..29416f9c3220 100644
--- a/Documentation/devicetree/bindings/gpio/gpio_atmel.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio_atmel.txt
@@ -5,9 +5,13 @@ Required properties:
- reg: Should contain GPIO controller registers location and length
- interrupts: Should be the port interrupt shared by all the pins.
- #gpio-cells: Should be two. The first cell is the pin number and
- the second cell is used to specify optional parameters (currently
- unused).
+ the second cell is used to specify optional parameters to declare if the GPIO
+ is active high or low. See gpio.txt.
- gpio-controller: Marks the device node as a GPIO controller.
+- interrupt-controller: Marks the device node as an interrupt controller.
+- #interrupt-cells: Should be two. The first cell is the pin number and the
+ second cell is used to specify irq type flags, see the two cell description
+ in interrupt-controller/interrupts.txt for details.
optional properties:
- #gpio-lines: Number of gpio if absent 32.
@@ -21,5 +25,7 @@ Example:
#gpio-cells = <2>;
gpio-controller;
#gpio-lines = <19>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
};
diff --git a/Documentation/devicetree/bindings/gpio/ingenic,gpio.txt b/Documentation/devicetree/bindings/gpio/ingenic,gpio.txt
new file mode 100644
index 000000000000..7988aeb725f4
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/ingenic,gpio.txt
@@ -0,0 +1,46 @@
+Ingenic jz47xx GPIO controller
+
+That the Ingenic GPIO driver node must be a sub-node of the Ingenic pinctrl
+driver node.
+
+Required properties:
+--------------------
+
+ - compatible: Must contain one of:
+ - "ingenic,jz4740-gpio"
+ - "ingenic,jz4770-gpio"
+ - "ingenic,jz4780-gpio"
+ - reg: The GPIO bank number.
+ - interrupt-controller: Marks the device node as an interrupt controller.
+ - interrupts: Interrupt specifier for the controllers interrupt.
+ - #interrupt-cells: Should be 2. Refer to
+ ../interrupt-controller/interrupts.txt for more details.
+ - gpio-controller: Marks the device node as a GPIO controller.
+ - #gpio-cells: Should be 2. The first cell is the GPIO number and the second
+ cell specifies GPIO flags, as defined in <dt-bindings/gpio/gpio.h>. Only the
+ GPIO_ACTIVE_HIGH and GPIO_ACTIVE_LOW flags are supported.
+ - gpio-ranges: Range of pins managed by the GPIO controller. Refer to
+ 'gpio.txt' in this directory for more details.
+
+Example:
+--------
+
+&pinctrl {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ gpa: gpio@0 {
+ compatible = "ingenic,jz4740-gpio";
+ reg = <0>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 0 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <28>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
index 7c1ab3b3254f..51c86f69995e 100644
--- a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
+++ b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
@@ -2,7 +2,9 @@
Required Properties:
- - compatible: should contain one of the following.
+ - compatible: should contain one or more of the following:
+ - "renesas,gpio-r8a7743": for R8A7743 (RZ/G1M) compatible GPIO controller.
+ - "renesas,gpio-r8a7745": for R8A7745 (RZ/G1E) compatible GPIO controller.
- "renesas,gpio-r8a7778": for R8A7778 (R-Mobile M1) compatible GPIO controller.
- "renesas,gpio-r8a7779": for R8A7779 (R-Car H1) compatible GPIO controller.
- "renesas,gpio-r8a7790": for R8A7790 (R-Car H2) compatible GPIO controller.
@@ -12,7 +14,14 @@ Required Properties:
- "renesas,gpio-r8a7794": for R8A7794 (R-Car E2) compatible GPIO controller.
- "renesas,gpio-r8a7795": for R8A7795 (R-Car H3) compatible GPIO controller.
- "renesas,gpio-r8a7796": for R8A7796 (R-Car M3-W) compatible GPIO controller.
- - "renesas,gpio-rcar": for generic R-Car GPIO controller.
+ - "renesas,rcar-gen1-gpio": for a generic R-Car Gen1 GPIO controller.
+ - "renesas,rcar-gen2-gpio": for a generic R-Car Gen2 or RZ/G1 GPIO controller.
+ - "renesas,rcar-gen3-gpio": for a generic R-Car Gen3 GPIO controller.
+ - "renesas,gpio-rcar": deprecated.
+
+ When compatible with the generic version nodes must list the
+ SoC-specific version corresponding to the platform first followed by
+ the generic version.
- reg: Base address and length of each memory resource used by the GPIO
controller hardware module.
@@ -42,7 +51,7 @@ interrupt-controller/interrupts.txt.
Example: R8A7779 (R-Car H1) GPIO controller nodes
gpio0: gpio@ffc40000 {
- compatible = "renesas,gpio-r8a7779", "renesas,gpio-rcar";
+ compatible = "renesas,gpio-r8a7779", "renesas,rcar-gen1-gpio";
reg = <0xffc40000 0x2c>;
interrupt-parent = <&gic>;
interrupts = <0 141 0x4>;
@@ -54,7 +63,7 @@ Example: R8A7779 (R-Car H1) GPIO controller nodes
};
...
gpio6: gpio@ffc46000 {
- compatible = "renesas,gpio-r8a7779", "renesas,gpio-rcar";
+ compatible = "renesas,gpio-r8a7779", "renesas,rcar-gen1-gpio";
reg = <0xffc46000 0x2c>;
interrupt-parent = <&gic>;
interrupts = <0 147 0x4>;
diff --git a/Documentation/devicetree/bindings/gpio/spear_spics.txt b/Documentation/devicetree/bindings/gpio/spear_spics.txt
index 96c37eb15075..dd04d96e6ff1 100644
--- a/Documentation/devicetree/bindings/gpio/spear_spics.txt
+++ b/Documentation/devicetree/bindings/gpio/spear_spics.txt
@@ -42,7 +42,6 @@ spics: spics@e0700000{
spi0: spi@e0100000 {
- status = "okay";
num-cs = <3>;
cs-gpios = <&gpio1 7 0>, <&spics 0>,
<&spics 1>;
diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt
new file mode 100644
index 000000000000..039219df05c5
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt
@@ -0,0 +1,87 @@
+ARM Mali Midgard GPU
+====================
+
+Required properties:
+
+- compatible :
+ * Must contain one of the following:
+ + "arm,mali-t604"
+ + "arm,mali-t624"
+ + "arm,mali-t628"
+ + "arm,mali-t720"
+ + "arm,mali-t760"
+ + "arm,mali-t820"
+ + "arm,mali-t830"
+ + "arm,mali-t860"
+ + "arm,mali-t880"
+ * which must be preceded by one of the following vendor specifics:
+ + "amlogic,meson-gxm-mali"
+ + "rockchip,rk3288-mali"
+ + "rockchip,rk3399-mali"
+
+- reg : Physical base address of the device and length of the register area.
+
+- interrupts : Contains the three IRQ lines required by Mali Midgard devices.
+
+- interrupt-names : Contains the names of IRQ resources in the order they were
+ provided in the interrupts property. Must contain: "job", "mmu", "gpu".
+
+
+Optional properties:
+
+- clocks : Phandle to clock for the Mali Midgard device.
+
+- mali-supply : Phandle to regulator for the Mali device. Refer to
+ Documentation/devicetree/bindings/regulator/regulator.txt for details.
+
+- operating-points-v2 : Refer to Documentation/devicetree/bindings/power/opp.txt
+ for details.
+
+
+Example for a Mali-T760:
+
+gpu@ffa30000 {
+ compatible = "rockchip,rk3288-mali", "arm,mali-t760";
+ reg = <0xffa30000 0x10000>;
+ interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "job", "mmu", "gpu";
+ clocks = <&cru ACLK_GPU>;
+ mali-supply = <&vdd_gpu>;
+ operating-points-v2 = <&gpu_opp_table>;
+ power-domains = <&power RK3288_PD_GPU>;
+};
+
+gpu_opp_table: opp_table0 {
+ compatible = "operating-points-v2";
+
+ opp@533000000 {
+ opp-hz = /bits/ 64 <533000000>;
+ opp-microvolt = <1250000>;
+ };
+ opp@450000000 {
+ opp-hz = /bits/ 64 <450000000>;
+ opp-microvolt = <1150000>;
+ };
+ opp@400000000 {
+ opp-hz = /bits/ 64 <400000000>;
+ opp-microvolt = <1125000>;
+ };
+ opp@350000000 {
+ opp-hz = /bits/ 64 <350000000>;
+ opp-microvolt = <1075000>;
+ };
+ opp@266000000 {
+ opp-hz = /bits/ 64 <266000000>;
+ opp-microvolt = <1025000>;
+ };
+ opp@160000000 {
+ opp-hz = /bits/ 64 <160000000>;
+ opp-microvolt = <925000>;
+ };
+ opp@100000000 {
+ opp-hz = /bits/ 64 <100000000>;
+ opp-microvolt = <912500>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt
index 2b6243e730f6..b4ebd56d03f3 100644
--- a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt
+++ b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt
@@ -10,6 +10,7 @@ Required properties:
* And, optionally, one of the vendor specific compatible:
+ allwinner,sun4i-a10-mali
+ allwinner,sun7i-a20-mali
+ + allwinner,sun50i-h5-mali
+ amlogic,meson-gxbb-mali
+ amlogic,meson-gxl-mali
+ stericsson,db8500-mali
@@ -58,6 +59,10 @@ to specify one more vendor-specific compatible, among:
Required properties:
* resets: phandle to the reset line for the GPU
+ - allwinner,sun50i-h5-mali
+ Required properties:
+ * resets: phandle to the reset line for the GPU
+
- stericsson,db8500-mali
Required properties:
* interrupt-names and interrupts:
diff --git a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
index b7e4c7444510..f32bbba4d3bc 100644
--- a/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
+++ b/Documentation/devicetree/bindings/gpu/nvidia,gk20a.txt
@@ -51,7 +51,6 @@ Example for GK20A:
resets = <&tegra_car 184>;
reset-names = "gpu";
iommus = <&mc TEGRA_SWGROUP_GPU>;
- status = "disabled";
};
Example for GM20B:
@@ -70,7 +69,6 @@ Example for GM20B:
resets = <&tegra_car 184>;
reset-names = "gpu";
iommus = <&mc TEGRA_SWGROUP_GPU>;
- status = "disabled";
};
Example for GP10B:
@@ -89,5 +87,4 @@ Example for GP10B:
reset-names = "gpu";
power-domains = <&bpmp TEGRA186_POWER_DOMAIN_GPU>;
iommus = <&smmu TEGRA186_SID_GPU>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/gpu/samsung-g2d.txt b/Documentation/devicetree/bindings/gpu/samsung-g2d.txt
index c4f358dafdaa..1e7959332dbc 100644
--- a/Documentation/devicetree/bindings/gpu/samsung-g2d.txt
+++ b/Documentation/devicetree/bindings/gpu/samsung-g2d.txt
@@ -24,5 +24,4 @@ Example:
interrupts = <0 89 0>;
clocks = <&clock 177>, <&clock 277>;
clock-names = "sclk_fimg2d", "fimg2d";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/graph.txt b/Documentation/devicetree/bindings/graph.txt
index fcb1c6a4787b..0415e2c53ba0 100644
--- a/Documentation/devicetree/bindings/graph.txt
+++ b/Documentation/devicetree/bindings/graph.txt
@@ -34,7 +34,7 @@ remote device, an 'endpoint' child node must be provided for each link.
If more than one port is present in a device node or there is more than one
endpoint at a port, or a port node needs to be associated with a selected
hardware interface, a common scheme using '#address-cells', '#size-cells'
-and 'reg' properties is used number the nodes.
+and 'reg' properties is used to number the nodes.
device {
...
@@ -89,9 +89,9 @@ Links between endpoints
Each endpoint should contain a 'remote-endpoint' phandle property that points
to the corresponding endpoint in the port of the remote device. In turn, the
-remote endpoint should contain a 'remote-endpoint' property. If it has one,
-it must not point to another than the local endpoint. Two endpoints with their
-'remote-endpoint' phandles pointing at each other form a link between the
+remote endpoint should contain a 'remote-endpoint' property. If it has one, it
+must not point to anything other than the local endpoint. Two endpoints with
+their 'remote-endpoint' phandles pointing at each other form a link between the
containing ports.
device-1 {
@@ -110,13 +110,12 @@ device-2 {
};
};
-
Required properties
-------------------
If there is more than one 'port' or more than one 'endpoint' node or 'reg'
-property is present in port and/or endpoint nodes the following properties
-are required in a relevant parent node:
+property present in the port and/or endpoint nodes then the following
+properties are required in a relevant parent node:
- #address-cells : number of cells required to define port/endpoint
identifier, should be 1.
diff --git a/Documentation/devicetree/bindings/hsi/omap-ssi.txt b/Documentation/devicetree/bindings/hsi/omap-ssi.txt
index f26625e42693..b8eca3c7810d 100644
--- a/Documentation/devicetree/bindings/hsi/omap-ssi.txt
+++ b/Documentation/devicetree/bindings/hsi/omap-ssi.txt
@@ -92,6 +92,5 @@ ssi-controller@48058000 {
interrupts = <69>,
<70>;
- status = "disabled"; /* second port is not used on N900 */
}
}
diff --git a/Documentation/devicetree/bindings/hwlock/sprd-hwspinlock.txt b/Documentation/devicetree/bindings/hwlock/sprd-hwspinlock.txt
new file mode 100644
index 000000000000..581db9d941ba
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwlock/sprd-hwspinlock.txt
@@ -0,0 +1,23 @@
+SPRD Hardware Spinlock Device Binding
+-------------------------------------
+
+Required properties :
+- compatible : should be "sprd,hwspinlock-r3p0".
+- reg : the register address of hwspinlock.
+- #hwlock-cells : hwlock users only use the hwlock id to represent a specific
+ hwlock, so the number of cells should be <1> here.
+- clock-names : Must contain "enable".
+- clocks : Must contain a phandle entry for the clock in clock-names, see the
+ common clock bindings.
+
+Please look at the generic hwlock binding for usage information for consumers,
+"Documentation/devicetree/bindings/hwlock/hwlock.txt"
+
+Example of hwlock provider:
+ hwspinlock@40500000 {
+ compatible = "sprd,hwspinlock-r3p0";
+ reg = <0 0x40500000 0 0x1000>;
+ #hwlock-cells = <1>;
+ clock-names = "enable";
+ clocks = <&clk_aon_apb_gates0 22>;
+ };
diff --git a/Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt b/Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt
index cf4460564adb..367c8203213b 100644
--- a/Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt
+++ b/Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt
@@ -11,6 +11,8 @@ Required properties for pwm-tacho node:
- #size-cells : should be 1.
+- #cooling-cells: should be 2.
+
- reg : address and length of the register set for the device.
- pinctrl-names : a pinctrl state named "default" must be defined.
@@ -28,12 +30,17 @@ fan subnode format:
Under fan subnode there can upto 8 child nodes, with each child node
representing a fan. If there are 8 fans each fan can have one PWM port and
one/two Fan tach inputs.
+For PWM port can be configured cooling-levels to create cooling device.
+Cooling device could be bound to a thermal zone for the thermal control.
Required properties for each child node:
- reg : should specify PWM source port.
integer value in the range 0 to 7 with 0 indicating PWM port A and
7 indicating PWM port H.
+- cooling-levels: PWM duty cycle values in a range from 0 to 255
+ which correspond to thermal cooling states.
+
- aspeed,fan-tach-ch : should specify the Fan tach input channel.
integer value in the range 0 through 15, with 0 indicating
Fan tach channel 0 and 15 indicating Fan tach channel 15.
@@ -50,6 +57,7 @@ pwm_tacho_fixed_clk: fixedclk {
pwm_tacho: pwmtachocontroller@1e786000 {
#address-cells = <1>;
#size-cells = <1>;
+ #cooling-cells = <2>;
reg = <0x1E786000 0x1000>;
compatible = "aspeed,ast2500-pwm-tacho";
clocks = <&pwm_tacho_fixed_clk>;
@@ -58,6 +66,7 @@ pwm_tacho: pwmtachocontroller@1e786000 {
fan@0 {
reg = <0x00>;
+ cooling-levels = /bits/ 8 <125 151 177 203 229 255>;
aspeed,fan-tach-ch = /bits/ 8 <0x00>;
};
diff --git a/Documentation/devicetree/bindings/hwmon/ibm,cffps1.txt b/Documentation/devicetree/bindings/hwmon/ibm,cffps1.txt
new file mode 100644
index 000000000000..f68a0a68fc52
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ibm,cffps1.txt
@@ -0,0 +1,21 @@
+Device-tree bindings for IBM Common Form Factor Power Supply Version 1
+----------------------------------------------------------------------
+
+Required properties:
+ - compatible = "ibm,cffps1";
+ - reg = < I2C bus address >; : Address of the power supply on the
+ I2C bus.
+
+Example:
+
+ i2c-bus@100 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+ < more properties >
+
+ power-supply@68 {
+ compatible = "ibm,cffps1";
+ reg = <0x68>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/hwmon/ltq-cputemp.txt b/Documentation/devicetree/bindings/hwmon/ltq-cputemp.txt
new file mode 100644
index 000000000000..33fd00a987c7
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ltq-cputemp.txt
@@ -0,0 +1,10 @@
+Lantiq cpu temperatur sensor
+
+Requires node properties:
+- compatible value :
+ "lantiq,cputemp"
+
+Example:
+ cputemp@0 {
+ compatible = "lantiq,cputemp";
+ };
diff --git a/Documentation/devicetree/bindings/i2c/i2c-altera.txt b/Documentation/devicetree/bindings/i2c/i2c-altera.txt
new file mode 100644
index 000000000000..767664f448ec
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-altera.txt
@@ -0,0 +1,39 @@
+* Altera I2C Controller
+* This is Altera's synthesizable logic block I2C Controller for use
+* in Altera's FPGAs.
+
+Required properties :
+ - compatible : should be "altr,softip-i2c-v1.0"
+ - reg : Offset and length of the register set for the device
+ - interrupts : <IRQ> where IRQ is the interrupt number.
+ - clocks : phandle to input clock.
+ - #address-cells = <1>;
+ - #size-cells = <0>;
+
+Recommended properties :
+ - clock-frequency : desired I2C bus clock frequency in Hz.
+
+Optional properties :
+ - fifo-size : Size of the RX and TX FIFOs in bytes.
+ - Child nodes conforming to i2c bus binding
+
+Example :
+
+ i2c@100080000 {
+ compatible = "altr,softip-i2c-v1.0";
+ reg = <0x00000001 0x00080000 0x00000040>;
+ interrupt-parent = <&intc>;
+ interrupts = <0 43 4>;
+ clocks = <&clk_0>;
+ clock-frequency = <100000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ fifo-size = <4>;
+
+ eeprom@51 {
+ compatible = "atmel,24c32";
+ reg = <0x51>;
+ pagesize = <32>;
+ };
+ };
+
diff --git a/Documentation/devicetree/bindings/i2c/i2c-aspeed.txt b/Documentation/devicetree/bindings/i2c/i2c-aspeed.txt
new file mode 100644
index 000000000000..bd6480b19535
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-aspeed.txt
@@ -0,0 +1,48 @@
+Device tree configuration for the I2C busses on the AST24XX and AST25XX SoCs.
+
+Required Properties:
+- #address-cells : should be 1
+- #size-cells : should be 0
+- reg : address offset and range of bus
+- compatible : should be "aspeed,ast2400-i2c-bus"
+ or "aspeed,ast2500-i2c-bus"
+- clocks : root clock of bus, should reference the APB
+ clock
+- interrupts : interrupt number
+- interrupt-parent : interrupt controller for bus, should reference a
+ aspeed,ast2400-i2c-ic or aspeed,ast2500-i2c-ic
+ interrupt controller
+
+Optional Properties:
+- bus-frequency : frequency of the bus clock in Hz defaults to 100 kHz when not
+ specified
+- multi-master : states that there is another master active on this bus.
+
+Example:
+
+i2c {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x1e78a000 0x1000>;
+
+ i2c_ic: interrupt-controller@0 {
+ #interrupt-cells = <1>;
+ compatible = "aspeed,ast2400-i2c-ic";
+ reg = <0x0 0x40>;
+ interrupts = <12>;
+ interrupt-controller;
+ };
+
+ i2c0: i2c-bus@40 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #interrupt-cells = <1>;
+ reg = <0x40 0x40>;
+ compatible = "aspeed,ast2400-i2c-bus";
+ clocks = <&clk_apb>;
+ bus-frequency = <100000>;
+ interrupts = <0>;
+ interrupt-parent = <&i2c_ic>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/i2c/i2c-cbus-gpio.txt b/Documentation/devicetree/bindings/i2c/i2c-cbus-gpio.txt
index 8ce9cd2855b5..c143948b2a37 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-cbus-gpio.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-cbus-gpio.txt
@@ -20,8 +20,8 @@ i2c@0 {
#address-cells = <1>;
#size-cells = <0>;
- retu-mfd: retu@1 {
- compatible = "retu-mfd";
+ retu: retu@1 {
+ compatible = "nokia,retu";
reg = <0x1>;
};
};
diff --git a/Documentation/devicetree/bindings/i2c/i2c-demux-pinctrl.txt b/Documentation/devicetree/bindings/i2c/i2c-demux-pinctrl.txt
index 7ce23ac61308..81b5d55086fa 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-demux-pinctrl.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-demux-pinctrl.txt
@@ -102,7 +102,6 @@ And for clarification, here are the snipplets for the i2c-parents:
#address-cells = <1>;
#size-cells = <0>;
compatible = "i2c-gpio";
- status = "disabled";
gpios = <&gpio5 6 GPIO_ACTIVE_HIGH /* sda */
&gpio5 5 GPIO_ACTIVE_HIGH /* scl */
>;
diff --git a/Documentation/devicetree/bindings/i2c/i2c-designware.txt b/Documentation/devicetree/bindings/i2c/i2c-designware.txt
index fee26dc3e858..fbb0a6d8b964 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-designware.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-designware.txt
@@ -20,7 +20,7 @@ Optional properties :
- i2c-sda-falling-time-ns : should contain the SDA falling time in nanoseconds.
This value which is by default 300ns is used to compute the tHIGH period.
-Example :
+Examples :
i2c@f0000 {
#address-cells = <1>;
@@ -43,3 +43,17 @@ Example :
i2c-sda-falling-time-ns = <300>;
i2c-scl-falling-time-ns = <300>;
};
+
+ i2c@1120000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x2000 0x100>;
+ clock-frequency = <400000>;
+ clocks = <&i2cclk>;
+ interrupts = <0>;
+
+ eeprom@64 {
+ compatible = "linux,slave-24c02";
+ reg = <0x40000064>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/i2c/i2c-efm32.txt b/Documentation/devicetree/bindings/i2c/i2c-efm32.txt
index 50b25c3da186..3b30e54ae3c7 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-efm32.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-efm32.txt
@@ -22,7 +22,6 @@ Example:
interrupts = <9>;
clocks = <&cmu clk_HFPERCLKI2C0>;
clock-frequency = <100000>;
- status = "ok";
energymicro,location = <3>;
eeprom@50 {
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mt6577.txt b/Documentation/devicetree/bindings/i2c/i2c-mt6577.txt
deleted file mode 100644
index 0ce6fa3242f0..000000000000
--- a/Documentation/devicetree/bindings/i2c/i2c-mt6577.txt
+++ /dev/null
@@ -1,41 +0,0 @@
-* Mediatek's I2C controller
-
-The Mediatek's I2C controller is used to interface with I2C devices.
-
-Required properties:
- - compatible: value should be either of the following.
- (a) "mediatek,mt6577-i2c", for i2c compatible with mt6577 i2c.
- (b) "mediatek,mt6589-i2c", for i2c compatible with mt6589 i2c.
- (c) "mediatek,mt8127-i2c", for i2c compatible with mt8127 i2c.
- (d) "mediatek,mt8135-i2c", for i2c compatible with mt8135 i2c.
- (e) "mediatek,mt8173-i2c", for i2c compatible with mt8173 i2c.
- - reg: physical base address of the controller and dma base, length of memory
- mapped region.
- - interrupts: interrupt number to the cpu.
- - clock-div: the fixed value for frequency divider of clock source in i2c
- module. Each IC may be different.
- - clocks: clock name from clock manager
- - clock-names: Must include "main" and "dma", if enable have-pmic need include
- "pmic" extra.
-
-Optional properties:
- - clock-frequency: Frequency in Hz of the bus when transfer, the default value
- is 100000.
- - mediatek,have-pmic: platform can control i2c form special pmic side.
- Only mt6589 and mt8135 support this feature.
- - mediatek,use-push-pull: IO config use push-pull mode.
-
-Example:
-
- i2c0: i2c@1100d000 {
- compatible = "mediatek,mt6577-i2c";
- reg = <0x1100d000 0x70>,
- <0x11000300 0x80>;
- interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_LOW>;
- clock-frequency = <400000>;
- mediatek,have-pmic;
- clock-div = <16>;
- clocks = <&i2c0_ck>, <&ap_dma_ck>;
- clock-names = "main", "dma";
- };
-
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mtk.txt b/Documentation/devicetree/bindings/i2c/i2c-mtk.txt
new file mode 100644
index 000000000000..ff7bf37deb43
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-mtk.txt
@@ -0,0 +1,42 @@
+* MediaTek's I2C controller
+
+The MediaTek's I2C controller is used to interface with I2C devices.
+
+Required properties:
+ - compatible: value should be either of the following.
+ "mediatek,mt2701-i2c", "mediatek,mt6577-i2c": for MediaTek MT2701
+ "mediatek,mt6577-i2c": for MediaTek MT6577
+ "mediatek,mt6589-i2c": for MediaTek MT6589
+ "mediatek,mt7622-i2c": for MediaTek MT7622
+ "mediatek,mt7623-i2c", "mediatek,mt6577-i2c": for MediaTek MT7623
+ "mediatek,mt8173-i2c": for MediaTek MT8173
+ - reg: physical base address of the controller and dma base, length of memory
+ mapped region.
+ - interrupts: interrupt number to the cpu.
+ - clock-div: the fixed value for frequency divider of clock source in i2c
+ module. Each IC may be different.
+ - clocks: clock name from clock manager
+ - clock-names: Must include "main" and "dma", if enable have-pmic need include
+ "pmic" extra.
+
+Optional properties:
+ - clock-frequency: Frequency in Hz of the bus when transfer, the default value
+ is 100000.
+ - mediatek,have-pmic: platform can control i2c form special pmic side.
+ Only mt6589 and mt8135 support this feature.
+ - mediatek,use-push-pull: IO config use push-pull mode.
+
+Example:
+
+ i2c0: i2c@1100d000 {
+ compatible = "mediatek,mt6577-i2c";
+ reg = <0x1100d000 0x70>,
+ <0x11000300 0x80>;
+ interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_LOW>;
+ clock-frequency = <400000>;
+ mediatek,have-pmic;
+ clock-div = <16>;
+ clocks = <&i2c0_ck>, <&ap_dma_ck>;
+ clock-names = "main", "dma";
+ };
+
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-gpmux.txt b/Documentation/devicetree/bindings/i2c/i2c-mux-gpmux.txt
new file mode 100644
index 000000000000..2907dab56298
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-mux-gpmux.txt
@@ -0,0 +1,99 @@
+General Purpose I2C Bus Mux
+
+This binding describes an I2C bus multiplexer that uses a mux controller
+from the mux subsystem to route the I2C signals.
+
+ .-----. .-----.
+ | dev | | dev |
+ .------------. '-----' '-----'
+ | SoC | | |
+ | | .--------+--------'
+ | .------. | .------+ child bus A, on MUX value set to 0
+ | | I2C |-|--| Mux |
+ | '------' | '--+---+ child bus B, on MUX value set to 1
+ | .------. | | '----------+--------+--------.
+ | | MUX- | | | | | |
+ | | Ctrl |-|-----+ .-----. .-----. .-----.
+ | '------' | | dev | | dev | | dev |
+ '------------' '-----' '-----' '-----'
+
+Required properties:
+- compatible: i2c-mux
+- i2c-parent: The phandle of the I2C bus that this multiplexer's master-side
+ port is connected to.
+- mux-controls: The phandle of the mux controller to use for operating the
+ mux.
+* Standard I2C mux properties. See i2c-mux.txt in this directory.
+* I2C child bus nodes. See i2c-mux.txt in this directory. The sub-bus number
+ is also the mux-controller state described in ../mux/mux-controller.txt
+
+Optional properties:
+- mux-locked: If present, explicitly allow unrelated I2C transactions on the
+ parent I2C adapter at these times:
+ + during setup of the multiplexer
+ + between setup of the multiplexer and the child bus I2C transaction
+ + between the child bus I2C transaction and releasing of the multiplexer
+ + during releasing of the multiplexer
+ However, I2C transactions to devices behind all I2C multiplexers connected
+ to the same parent adapter that this multiplexer is connected to are blocked
+ for the full duration of the complete multiplexed I2C transaction (i.e.
+ including the times covered by the above list).
+ If mux-locked is not present, the multiplexer is assumed to be parent-locked.
+ This means that no unrelated I2C transactions are allowed on the parent I2C
+ adapter for the complete multiplexed I2C transaction.
+ The properties of mux-locked and parent-locked multiplexers are discussed
+ in more detail in Documentation/i2c/i2c-topology.
+
+For each i2c child node, an I2C child bus will be created. They will
+be numbered based on their order in the device tree.
+
+Whenever an access is made to a device on a child bus, the value set
+in the relevant node's reg property will be set as the state in the
+mux controller.
+
+Example:
+ mux: mux-controller {
+ compatible = "gpio-mux";
+ #mux-control-cells = <0>;
+
+ mux-gpios = <&pioA 0 GPIO_ACTIVE_HIGH>,
+ <&pioA 1 GPIO_ACTIVE_HIGH>;
+ };
+
+ i2c-mux {
+ compatible = "i2c-mux";
+ mux-locked;
+ i2c-parent = <&i2c1>;
+
+ mux-controls = <&mux>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ i2c@1 {
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ssd1307: oled@3c {
+ compatible = "solomon,ssd1307fb-i2c";
+ reg = <0x3c>;
+ pwms = <&pwm 4 3000>;
+ reset-gpios = <&gpio2 7 1>;
+ reset-active-low;
+ };
+ };
+
+ i2c@3 {
+ reg = <3>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pca9555: pca9555@20 {
+ compatible = "nxp,pca9555";
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0x20>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/i2c/i2c-pca-platform.txt b/Documentation/devicetree/bindings/i2c/i2c-pca-platform.txt
new file mode 100644
index 000000000000..f1f3876bb8e8
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-pca-platform.txt
@@ -0,0 +1,29 @@
+* NXP PCA PCA9564/PCA9665 I2C controller
+
+The PCA9564/PCA9665 serves as an interface between most standard
+parallel-bus microcontrollers/microprocessors and the serial I2C-bus
+and allows the parallel bus system to communicate bi-directionally
+with the I2C-bus.
+
+Required properties :
+
+ - reg : Offset and length of the register set for the device
+ - compatible : one of "nxp,pca9564" or "nxp,pca9665"
+
+Optional properties
+ - interrupts : the interrupt number
+ - interrupt-parent : the phandle for the interrupt controller.
+ If an interrupt is not specified polling will be used.
+ - reset-gpios : gpio specifier for gpio connected to RESET_N pin. As the line
+ is active low, it should be marked GPIO_ACTIVE_LOW.
+ - clock-frequency : I2C bus frequency.
+
+Example:
+ i2c0: i2c@80000 {
+ compatible = "nxp,pca9564";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x80000 0x4>;
+ reset-gpios = <&gpio1 0 GPIO_ACTIVE_LOW>;
+ clock-frequency = <100000>;
+ };
diff --git a/Documentation/devicetree/bindings/i2c/i2c-rcar.txt b/Documentation/devicetree/bindings/i2c/i2c-rcar.txt
index 2b8bd33dbf8d..cad39aee9f73 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-rcar.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-rcar.txt
@@ -2,6 +2,8 @@ I2C for R-Car platforms
Required properties:
- compatible:
+ "renesas,i2c-r8a7743" if the device is a part of a R8A7743 SoC.
+ "renesas,i2c-r8a7745" if the device is a part of a R8A7745 SoC.
"renesas,i2c-r8a7778" if the device is a part of a R8A7778 SoC.
"renesas,i2c-r8a7779" if the device is a part of a R8A7779 SoC.
"renesas,i2c-r8a7790" if the device is a part of a R8A7790 SoC.
@@ -12,7 +14,8 @@ Required properties:
"renesas,i2c-r8a7795" if the device is a part of a R8A7795 SoC.
"renesas,i2c-r8a7796" if the device is a part of a R8A7796 SoC.
"renesas,rcar-gen1-i2c" for a generic R-Car Gen1 compatible device.
- "renesas,rcar-gen2-i2c" for a generic R-Car Gen2 compatible device.
+ "renesas,rcar-gen2-i2c" for a generic R-Car Gen2 or RZ/G1 compatible
+ device.
"renesas,rcar-gen3-i2c" for a generic R-Car Gen3 compatible device.
"renesas,i2c-rcar" (deprecated)
diff --git a/Documentation/devicetree/bindings/i2c/i2c-rk3x.txt b/Documentation/devicetree/bindings/i2c/i2c-rk3x.txt
index e18445d0980c..22f2eeb2c4c9 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-rk3x.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-rk3x.txt
@@ -7,6 +7,7 @@ Required properties :
- reg : Offset and length of the register set for the device
- compatible: should be one of the following:
+ - "rockchip,rv1108-i2c": for rv1108
- "rockchip,rk3066-i2c": for rk3066
- "rockchip,rk3188-i2c": for rk3188
- "rockchip,rk3228-i2c": for rk3228
diff --git a/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt b/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
index ae9c2a735f39..224390999e81 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
@@ -4,6 +4,8 @@ Required properties:
- compatible :
- "renesas,iic-r8a73a4" (R-Mobile APE6)
- "renesas,iic-r8a7740" (R-Mobile A1)
+ - "renesas,iic-r8a7743" (RZ/G1M)
+ - "renesas,iic-r8a7745" (RZ/G1E)
- "renesas,iic-r8a7790" (R-Car H2)
- "renesas,iic-r8a7791" (R-Car M2-W)
- "renesas,iic-r8a7792" (R-Car V2H)
@@ -12,7 +14,8 @@ Required properties:
- "renesas,iic-r8a7795" (R-Car H3)
- "renesas,iic-r8a7796" (R-Car M3-W)
- "renesas,iic-sh73a0" (SH-Mobile AG5)
- - "renesas,rcar-gen2-iic" (generic R-Car Gen2 compatible device)
+ - "renesas,rcar-gen2-iic" (generic R-Car Gen2 or RZ/G1
+ compatible device)
- "renesas,rcar-gen3-iic" (generic R-Car Gen3 compatible device)
- "renesas,rmobile-iic" (generic device)
diff --git a/Documentation/devicetree/bindings/i2c/i2c-sprd.txt b/Documentation/devicetree/bindings/i2c/i2c-sprd.txt
new file mode 100644
index 000000000000..60b7cda15dd2
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-sprd.txt
@@ -0,0 +1,31 @@
+I2C for Spreadtrum platforms
+
+Required properties:
+- compatible: Should be "sprd,sc9860-i2c".
+- reg: Specify the physical base address of the controller and length
+ of memory mapped region.
+- interrupts: Should contain I2C interrupt.
+- clock-names: Should contain following entries:
+ "i2c" for I2C clock,
+ "source" for I2C source (parent) clock,
+ "enable" for I2C module enable clock.
+- clocks: Should contain a clock specifier for each entry in clock-names.
+- clock-frequency: Constains desired I2C bus clock frequency in Hz.
+- #address-cells: Should be 1 to describe address cells for I2C device address.
+- #size-cells: Should be 0 means no size cell for I2C device address.
+
+Optional properties:
+- Child nodes conforming to I2C bus binding
+
+Examples:
+i2c0: i2c@70500000 {
+ compatible = "sprd,sc9860-i2c";
+ reg = <0 0x70500000 0 0x1000>;
+ interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+ clock-names = "i2c", "source", "enable";
+ clocks = <&clk_i2c3>, <&ext_26m>, <&clk_ap_apb_gates 11>;
+ clock-frequency = <400000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+};
+
diff --git a/Documentation/devicetree/bindings/i2c/i2c-stm32.txt b/Documentation/devicetree/bindings/i2c/i2c-stm32.txt
index 78eaf7b718ed..3b5489966634 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-stm32.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-stm32.txt
@@ -1,7 +1,9 @@
* I2C controller embedded in STMicroelectronics STM32 I2C platform
Required properties :
-- compatible : Must be "st,stm32f4-i2c"
+- compatible : Must be one of the following
+ - "st,stm32f4-i2c"
+ - "st,stm32f7-i2c"
- reg : Offset and length of the register set for the device
- interrupts : Must contain the interrupt id for I2C event and then the
interrupt id for I2C error.
@@ -14,8 +16,16 @@ Required properties :
Optional properties :
- clock-frequency : Desired I2C bus clock frequency in Hz. If not specified,
- the default 100 kHz frequency will be used. As only Normal and Fast modes
- are supported, possible values are 100000 and 400000.
+ the default 100 kHz frequency will be used.
+ For STM32F4 SoC Standard-mode and Fast-mode are supported, possible values are
+ 100000 and 400000.
+ For STM32F7 SoC, Standard-mode, Fast-mode and Fast-mode Plus are supported,
+ possible values are 100000, 400000 and 1000000.
+- i2c-scl-rising-time-ns : Only for STM32F7, I2C SCL Rising time for the board
+ (default: 25)
+- i2c-scl-falling-time-ns : Only for STM32F7, I2C SCL Falling time for the board
+ (default: 10)
+ I2C Timings are derived from these 2 values
Example :
@@ -31,3 +41,16 @@ Example :
pinctrl-0 = <&i2c1_sda_pin>, <&i2c1_scl_pin>;
pinctrl-names = "default";
};
+
+ i2c@40005400 {
+ compatible = "st,stm32f7-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x40005400 0x400>;
+ interrupts = <31>,
+ <32>;
+ resets = <&rcc STM32F7_APB1_RESET(I2C1)>;
+ clocks = <&rcc 1 CLK_I2C1>;
+ pinctrl-0 = <&i2c1_sda_pin>, <&i2c1_scl_pin>;
+ pinctrl-names = "default";
+ };
diff --git a/Documentation/devicetree/bindings/i2c/i2c-zx2967.txt b/Documentation/devicetree/bindings/i2c/i2c-zx2967.txt
new file mode 100644
index 000000000000..cb806d1ae4c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-zx2967.txt
@@ -0,0 +1,22 @@
+ZTE zx2967 I2C controller
+
+Required properties:
+ - compatible: must be "zte,zx296718-i2c"
+ - reg: physical address and length of the device registers
+ - interrupts: a single interrupt specifier
+ - clocks: clock for the device
+ - #address-cells: should be <1>
+ - #size-cells: should be <0>
+ - clock-frequency: the desired I2C bus clock frequency.
+
+Examples:
+
+ i2c@112000 {
+ compatible = "zte,zx296718-i2c";
+ reg = <0x00112000 0x1000>;
+ interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&osc24m>;
+ #address-cells = <1>
+ #size-cells = <0>;
+ clock-frequency = <1600000>;
+ };
diff --git a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt
index 656716b72cc4..f64064f8bdc2 100644
--- a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt
+++ b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.txt
@@ -71,5 +71,4 @@ Example:
reset-names = "i2c";
dmas = <&apbdma 16>, <&apbdma 16>;
dma-names = "rx", "tx";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.txt b/Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.txt
index 047189192aec..f413e82c8b83 100644
--- a/Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.txt
@@ -2,6 +2,8 @@
Required properties:
- compatible: depending on the SoC this should be one of:
+ - "amlogic,meson8-saradc" for Meson8
+ - "amlogic,meson8b-saradc" for Meson8b
- "amlogic,meson-gxbb-saradc" for GXBB
- "amlogic,meson-gxl-saradc" for GXL
- "amlogic,meson-gxm-saradc" for GXM
diff --git a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
index 3223684a643b..552e7a83951d 100644
--- a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
@@ -11,6 +11,11 @@ Required properties:
- atmel,min-sample-rate-hz: Minimum sampling rate, it depends on SoC.
- atmel,max-sample-rate-hz: Maximum sampling rate, it depends on SoC.
- atmel,startup-time-ms: Startup time expressed in ms, it depends on SoC.
+ - atmel,trigger-edge-type: One of possible edge types for the ADTRG hardware
+ trigger pin. When the specific edge type is detected, the conversion will
+ start. Possible values are rising, falling, or both.
+ This property uses the IRQ edge types values: IRQ_TYPE_EDGE_RISING ,
+ IRQ_TYPE_EDGE_FALLING or IRQ_TYPE_EDGE_BOTH
Example:
@@ -25,4 +30,5 @@ adc: adc@fc030000 {
atmel,startup-time-ms = <4>;
vddana-supply = <&vdd_3v3_lp_reg>;
vref-supply = <&vdd_3v3_lp_reg>;
+ atmel,trigger-edge-type = <IRQ_TYPE_EDGE_BOTH>;
}
diff --git a/Documentation/devicetree/bindings/iio/adc/brcm,iproc-static-adc.txt b/Documentation/devicetree/bindings/iio/adc/brcm,iproc-static-adc.txt
index caaaed765ce4..7b1b1e4086d4 100644
--- a/Documentation/devicetree/bindings/iio/adc/brcm,iproc-static-adc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/brcm,iproc-static-adc.txt
@@ -37,5 +37,4 @@ For example:
clocks = <&asiu_clks BCM_CYGNUS_ASIU_ADC_CLK>;
clock-names = "tsc_clk";
interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/iio/adc/lpc1850-adc.txt b/Documentation/devicetree/bindings/iio/adc/lpc1850-adc.txt
index 0bcae5140bc5..9ada5abd45fa 100644
--- a/Documentation/devicetree/bindings/iio/adc/lpc1850-adc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/lpc1850-adc.txt
@@ -17,5 +17,4 @@ adc0: adc@400e3000 {
clocks = <&ccu1 CLK_APB3_ADC0>;
vref-supply = <&reg_vdda>;
resets = <&rgu 40>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/iio/adc/mt6577_auxadc.txt b/Documentation/devicetree/bindings/iio/adc/mt6577_auxadc.txt
index 68c45cbbe3d9..64dc4843c180 100644
--- a/Documentation/devicetree/bindings/iio/adc/mt6577_auxadc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/mt6577_auxadc.txt
@@ -12,6 +12,7 @@ for the Thermal Controller which holds a phandle to the AUXADC.
Required properties:
- compatible: Should be one of:
- "mediatek,mt2701-auxadc": For MT2701 family of SoCs
+ - "mediatek,mt7622-auxadc": For MT7622 family of SoCs
- "mediatek,mt8173-auxadc": For MT8173 family of SoCs
- reg: Address range of the AUXADC unit.
- clocks: Should contain a clock specifier for each entry in clock-names
diff --git a/Documentation/devicetree/bindings/iio/adc/renesas,gyroadc.txt b/Documentation/devicetree/bindings/iio/adc/renesas,gyroadc.txt
index f5b0adae6010..df5b9f2ad8d8 100644
--- a/Documentation/devicetree/bindings/iio/adc/renesas,gyroadc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/renesas,gyroadc.txt
@@ -1,4 +1,4 @@
-* Renesas RCar GyroADC device driver
+* Renesas R-Car GyroADC device driver
The GyroADC block is a reduced SPI block with up to 8 chipselect lines,
which supports the SPI protocol of a selected few SPI ADCs. The SPI ADCs
@@ -16,8 +16,7 @@ Required properties:
- clocks: References to all the clocks specified in the clock-names
property as specified in
Documentation/devicetree/bindings/clock/clock-bindings.txt.
-- clock-names: Shall contain "fck" and "if". The "fck" is the GyroADC block
- clock, the "if" is the interface clock.
+- clock-names: Shall contain "fck". The "fck" is the GyroADC block clock.
- power-domains: Must contain a reference to the PM domain, if available.
- #address-cells: Should be <1> (setting for the subnodes) for all ADCs
except for "fujitsu,mb88101a". Should be <0> (setting for
@@ -75,8 +74,8 @@ Example:
adc@e6e54000 {
compatible = "renesas,r8a7791-gyroadc", "renesas,rcar-gyroadc";
reg = <0 0xe6e54000 0 64>;
- clocks = <&mstp9_clks R8A7791_CLK_GYROADC>, <&clk_65m>;
- clock-names = "fck", "if";
+ clocks = <&mstp9_clks R8A7791_CLK_GYROADC>;
+ clock-names = "fck";
power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
pinctrl-0 = <&adc_pins>;
diff --git a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt
index e0a9b9d6d6fd..c2c50b59873d 100644
--- a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt
@@ -6,6 +6,7 @@ Required properties:
- "rockchip,rk3066-tsadc": for rk3036
- "rockchip,rk3328-saradc", "rockchip,rk3399-saradc": for rk3328
- "rockchip,rk3399-saradc": for rk3399
+ - "rockchip,rv1108-saradc", "rockchip,rk3399-saradc": for rv1108
- reg: physical base address of the controller and length of memory mapped
region.
diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
index e35f9f1b3200..48bfcaa3ffcd 100644
--- a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
@@ -21,11 +21,19 @@ own configurable sequence and trigger:
Contents of a stm32 adc root node:
-----------------------------------
Required properties:
-- compatible: Should be "st,stm32f4-adc-core".
+- compatible: Should be one of:
+ "st,stm32f4-adc-core"
+ "st,stm32h7-adc-core"
- reg: Offset and length of the ADC block register set.
- interrupts: Must contain the interrupt for ADC block.
-- clocks: Clock for the analog circuitry (common to all ADCs).
-- clock-names: Must be "adc".
+- clocks: Core can use up to two clocks, depending on part used:
+ - "adc" clock: for the analog circuitry, common to all ADCs.
+ It's required on stm32f4.
+ It's optional on stm32h7.
+ - "bus" clock: for registers access, common to all ADCs.
+ It's not present on stm32f4.
+ It's required on stm32h7.
+- clock-names: Must be "adc" and/or "bus" depending on part used.
- interrupt-controller: Identifies the controller node as interrupt-parent
- vref-supply: Phandle to the vref input analog reference voltage.
- #interrupt-cells = <1>;
@@ -42,14 +50,18 @@ An ADC block node should contain at least one subnode, representing an
ADC instance available on the machine.
Required properties:
-- compatible: Should be "st,stm32f4-adc".
+- compatible: Should be one of:
+ "st,stm32f4-adc"
+ "st,stm32h7-adc"
- reg: Offset of ADC instance in ADC block (e.g. may be 0x0, 0x100, 0x200).
-- clocks: Input clock private to this ADC instance.
+- clocks: Input clock private to this ADC instance. It's required only on
+ stm32f4, that has per instance clock input for registers access.
- interrupt-parent: Phandle to the parent interrupt controller.
- interrupts: IRQ Line for the ADC (e.g. may be 0 for adc@0, 1 for adc@100 or
2 for adc@200).
- st,adc-channels: List of single-ended channels muxed for this ADC.
- It can have up to 16 channels, numbered from 0 to 15 (resp. for in0..in15).
+ It can have up to 16 channels on stm32f4 or 20 channels on stm32h7, numbered
+ from 0 to 15 or 19 (resp. for in0..in15 or in0..in19).
- #io-channel-cells = <1>: See the IIO bindings section "IIO consumers" in
Documentation/devicetree/bindings/iio/iio-bindings.txt
@@ -58,8 +70,15 @@ Optional properties:
See ../../dma/dma.txt for details.
- dma-names: Must be "rx" when dmas property is being used.
- assigned-resolution-bits: Resolution (bits) to use for conversions. Must
- match device available resolutions (e.g. can be 6, 8, 10 or 12 on stm32f4).
+ match device available resolutions:
+ * can be 6, 8, 10 or 12 on stm32f4
+ * can be 8, 10, 12, 14 or 16 on stm32h7
Default is maximum resolution if unset.
+- st,min-sample-time-nsecs: Minimum sampling time in nanoseconds.
+ Depending on hardware (board) e.g. high/low analog input source impedance,
+ fine tune of ADC sampling time may be recommended.
+ This can be either one value or an array that matches 'st,adc-channels' list,
+ to set sample time resp. for all channels, or independently for each channel.
Example:
adc: adc@40012000 {
diff --git a/Documentation/devicetree/bindings/iio/adc/ti-adc084s021.txt b/Documentation/devicetree/bindings/iio/adc/ti-adc084s021.txt
new file mode 100644
index 000000000000..4259e50620bc
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti-adc084s021.txt
@@ -0,0 +1,19 @@
+* Texas Instruments' ADC084S021
+
+Required properties:
+ - compatible : Must be "ti,adc084s021"
+ - reg : SPI chip select number for the device
+ - vref-supply : The regulator supply for ADC reference voltage
+ - spi-cpol : Per spi-bus bindings
+ - spi-cpha : Per spi-bus bindings
+ - spi-max-frequency : Per spi-bus bindings
+
+Example:
+adc@0 {
+ compatible = "ti,adc084s021";
+ reg = <0>;
+ vref-supply = <&adc_vref>;
+ spi-cpol;
+ spi-cpha;
+ spi-max-frequency = <16000000>;
+};
diff --git a/Documentation/devicetree/bindings/iio/adc/ti-adc108s102.txt b/Documentation/devicetree/bindings/iio/adc/ti-adc108s102.txt
new file mode 100644
index 000000000000..bbbbb4a9f58f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti-adc108s102.txt
@@ -0,0 +1,18 @@
+* Texas Instruments' ADC108S102 and ADC128S102 ADC chip
+
+Required properties:
+ - compatible: Should be "ti,adc108s102"
+ - reg: spi chip select number for the device
+ - vref-supply: The regulator supply for ADC reference voltage
+
+Recommended properties:
+ - spi-max-frequency: Definition as per
+ Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Example:
+adc@0 {
+ compatible = "ti,adc108s102";
+ reg = <0>;
+ vref-supply = <&vdd_supply>;
+ spi-max-frequency = <1000000>;
+};
diff --git a/Documentation/devicetree/bindings/iio/counter/stm32-lptimer-cnt.txt b/Documentation/devicetree/bindings/iio/counter/stm32-lptimer-cnt.txt
new file mode 100644
index 000000000000..a04aa5c04103
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/counter/stm32-lptimer-cnt.txt
@@ -0,0 +1,27 @@
+STMicroelectronics STM32 Low-Power Timer quadrature encoder and counter
+
+STM32 Low-Power Timer provides several counter modes. It can be used as:
+- quadrature encoder to detect angular position and direction of rotary
+ elements, from IN1 and IN2 input signals.
+- simple counter from IN1 input signal.
+
+Must be a sub-node of an STM32 Low-Power Timer device tree node.
+See ../mfd/stm32-lptimer.txt for details about the parent node.
+
+Required properties:
+- compatible: Must be "st,stm32-lptimer-counter".
+- pinctrl-names: Set to "default".
+- pinctrl-0: List of phandles pointing to pin configuration nodes,
+ to set IN1/IN2 pins in mode of operation for Low-Power
+ Timer input on external pin.
+
+Example:
+ timer@40002400 {
+ compatible = "st,stm32-lptimer";
+ ...
+ counter {
+ compatible = "st,stm32-lptimer-counter";
+ pinctrl-names = "default";
+ pinctrl-0 = <&lptim1_in_pins>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/dac/lpc1850-dac.txt b/Documentation/devicetree/bindings/iio/dac/lpc1850-dac.txt
index 7d6647d4af5e..42db783c4e75 100644
--- a/Documentation/devicetree/bindings/iio/dac/lpc1850-dac.txt
+++ b/Documentation/devicetree/bindings/iio/dac/lpc1850-dac.txt
@@ -16,5 +16,4 @@ dac: dac@400e1000 {
clocks = <&ccu1 CLK_APB3_DAC>;
vref-supply = <&reg_vdda>;
resets = <&rgu 42>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/iio/dac/st,stm32-dac.txt b/Documentation/devicetree/bindings/iio/dac/st,stm32-dac.txt
index bcee71f808d0..bf2925c671c6 100644
--- a/Documentation/devicetree/bindings/iio/dac/st,stm32-dac.txt
+++ b/Documentation/devicetree/bindings/iio/dac/st,stm32-dac.txt
@@ -10,7 +10,9 @@ current.
Contents of a stm32 dac root node:
-----------------------------------
Required properties:
-- compatible: Must be "st,stm32h7-dac-core".
+- compatible: Should be one of:
+ "st,stm32f4-dac-core"
+ "st,stm32h7-dac-core"
- reg: Offset and length of the device's register set.
- clocks: Must contain an entry for pclk (which feeds the peripheral bus
interface)
diff --git a/Documentation/devicetree/bindings/iio/humidity/hdc100x.txt b/Documentation/devicetree/bindings/iio/humidity/hdc100x.txt
new file mode 100644
index 000000000000..c52333bdfd19
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/humidity/hdc100x.txt
@@ -0,0 +1,17 @@
+* HDC100x temperature + humidity sensors
+
+Required properties:
+ - compatible: Should contain one of the following:
+ ti,hdc1000
+ ti,hdc1008
+ ti,hdc1010
+ ti,hdc1050
+ ti,hdc1080
+ - reg: i2c address of the sensor
+
+Example:
+
+hdc100x@40 {
+ compatible = "ti,hdc1000";
+ reg = <0x40>;
+};
diff --git a/Documentation/devicetree/bindings/iio/humidity/hts221.txt b/Documentation/devicetree/bindings/iio/humidity/hts221.txt
index b20ab9c12080..10adeb0d703d 100644
--- a/Documentation/devicetree/bindings/iio/humidity/hts221.txt
+++ b/Documentation/devicetree/bindings/iio/humidity/hts221.txt
@@ -5,9 +5,18 @@ Required properties:
- reg: i2c address of the sensor / spi cs line
Optional properties:
+- drive-open-drain: the interrupt/data ready line will be configured
+ as open drain, which is useful if several sensors share the same
+ interrupt line. This is a boolean property.
+ If the requested interrupt is configured as IRQ_TYPE_LEVEL_HIGH or
+ IRQ_TYPE_EDGE_RISING a pull-down resistor is needed to drive the line
+ when it is not active, whereas a pull-up one is needed when interrupt
+ line is configured as IRQ_TYPE_LEVEL_LOW or IRQ_TYPE_EDGE_FALLING.
+ Refer to pinctrl/pinctrl-bindings.txt for the property description.
- interrupt-parent: should be the phandle for the interrupt controller
- interrupts: interrupt mapping for IRQ. It should be configured with
- flags IRQ_TYPE_LEVEL_HIGH or IRQ_TYPE_EDGE_RISING.
+ flags IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_EDGE_RISING, IRQ_TYPE_LEVEL_LOW or
+ IRQ_TYPE_EDGE_FALLING.
Refer to interrupt-controller/interrupts.txt for generic interrupt
client node bindings.
diff --git a/Documentation/devicetree/bindings/iio/humidity/htu21.txt b/Documentation/devicetree/bindings/iio/humidity/htu21.txt
new file mode 100644
index 000000000000..97d79636f7ae
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/humidity/htu21.txt
@@ -0,0 +1,13 @@
+*HTU21 - Measurement-Specialties htu21 temperature & humidity sensor and humidity part of MS8607 sensor
+
+Required properties:
+
+ - compatible: should be "meas,htu21" or "meas,ms8607-humidity"
+ - reg: I2C address of the sensor
+
+Example:
+
+htu21@40 {
+ compatible = "meas,htu21";
+ reg = <0x40>;
+};
diff --git a/Documentation/devicetree/bindings/iio/imu/st_lsm6dsx.txt b/Documentation/devicetree/bindings/iio/imu/st_lsm6dsx.txt
index 8305fb05ffda..1ff1af799c76 100644
--- a/Documentation/devicetree/bindings/iio/imu/st_lsm6dsx.txt
+++ b/Documentation/devicetree/bindings/iio/imu/st_lsm6dsx.txt
@@ -11,9 +11,18 @@ Required properties:
Optional properties:
- st,drdy-int-pin: the pin on the package that will be used to signal
"data ready" (valid values: 1 or 2).
+- drive-open-drain: the interrupt/data ready line will be configured
+ as open drain, which is useful if several sensors share the same
+ interrupt line. This is a boolean property.
+ (This binding is taken from pinctrl/pinctrl-bindings.txt)
+ If the requested interrupt is configured as IRQ_TYPE_LEVEL_HIGH or
+ IRQ_TYPE_EDGE_RISING a pull-down resistor is needed to drive the line
+ when it is not active, whereas a pull-up one is needed when interrupt
+ line is configured as IRQ_TYPE_LEVEL_LOW or IRQ_TYPE_EDGE_FALLING.
- interrupt-parent: should be the phandle for the interrupt controller
- interrupts: interrupt mapping for IRQ. It should be configured with
- flags IRQ_TYPE_LEVEL_HIGH or IRQ_TYPE_EDGE_RISING.
+ flags IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_EDGE_RISING, IRQ_TYPE_LEVEL_LOW or
+ IRQ_TYPE_EDGE_FALLING.
Refer to interrupt-controller/interrupts.txt for generic interrupt
client node bindings.
diff --git a/Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.txt b/Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.txt
new file mode 100644
index 000000000000..c82794002595
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.txt
@@ -0,0 +1,39 @@
+I/O channel multiplexer bindings
+
+If a multiplexer is used to select which hardware signal is fed to
+e.g. an ADC channel, these bindings describe that situation.
+
+Required properties:
+- compatible : "io-channel-mux"
+- io-channels : Channel node of the parent channel that has multiplexed
+ input.
+- io-channel-names : Should be "parent".
+- #address-cells = <1>;
+- #size-cells = <0>;
+- mux-controls : Mux controller node to use for operating the mux
+- channels : List of strings, labeling the mux controller states.
+
+For each non-empty string in the channels property, an io-channel will
+be created. The number of this io-channel is the same as the index into
+the list of strings in the channels property, and also matches the mux
+controller state. The mux controller state is described in
+../mux/mux-controller.txt
+
+Example:
+ mux: mux-controller {
+ compatible = "mux-gpio";
+ #mux-control-cells = <0>;
+
+ mux-gpios = <&pioA 0 GPIO_ACTIVE_HIGH>,
+ <&pioA 1 GPIO_ACTIVE_HIGH>;
+ };
+
+ adc-mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc 0>;
+ io-channel-names = "parent";
+
+ mux-controls = <&mux>;
+
+ channels = "sync", "in", "system-regulator";
+ };
diff --git a/Documentation/devicetree/bindings/iio/pressure/ms5637.txt b/Documentation/devicetree/bindings/iio/pressure/ms5637.txt
new file mode 100644
index 000000000000..1f43ffa068ac
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/pressure/ms5637.txt
@@ -0,0 +1,17 @@
+* MS5637 - Measurement-Specialties MS5637, MS5805, MS5837 and MS8607 pressure & temperature sensor
+
+Required properties:
+
+ -compatible: should be one of the following
+ meas,ms5637
+ meas,ms5805
+ meas,ms5837
+ meas,ms8607-temppressure
+ -reg: I2C address of the sensor
+
+Example:
+
+ms5637@76 {
+ compatible = "meas,ms5637";
+ reg = <0x76>;
+};
diff --git a/Documentation/devicetree/bindings/iio/proximity/as3935.txt b/Documentation/devicetree/bindings/iio/proximity/as3935.txt
index ae23dd8da736..38d74314b7ab 100644
--- a/Documentation/devicetree/bindings/iio/proximity/as3935.txt
+++ b/Documentation/devicetree/bindings/iio/proximity/as3935.txt
@@ -3,6 +3,7 @@ Austrian Microsystems AS3935 Franklin lightning sensor device driver
Required properties:
- compatible: must be "ams,as3935"
- reg: SPI chip select number for the device
+ - spi-max-frequency: specifies maximum SPI clock frequency
- spi-cpha: SPI Mode 1. Refer to spi/spi-bus.txt for generic SPI
slave node bindings.
- interrupt-parent : should be the phandle for the interrupt controller
@@ -21,6 +22,7 @@ Example:
as3935@0 {
compatible = "ams,as3935";
reg = <0>;
+ spi-max-frequency = <400000>;
spi-cpha;
interrupt-parent = <&gpio1>;
interrupts = <16 1>;
diff --git a/Documentation/devicetree/bindings/iio/st-sensors.txt b/Documentation/devicetree/bindings/iio/st-sensors.txt
index eaa8fbba34e2..9ec6f5ce54fc 100644
--- a/Documentation/devicetree/bindings/iio/st-sensors.txt
+++ b/Documentation/devicetree/bindings/iio/st-sensors.txt
@@ -45,6 +45,7 @@ Accelerometers:
- st,lis2dh12-accel
- st,h3lis331dl-accel
- st,lng2dm-accel
+- st,lis3l02dq
Gyroscopes:
- st,l3g4200d-gyro
@@ -52,6 +53,7 @@ Gyroscopes:
- st,lsm330dl-gyro
- st,lsm330dlc-gyro
- st,l3gd20-gyro
+- st,l3gd20h-gyro
- st,l3g4is-gyro
- st,lsm330-gyro
- st,lsm9ds0-gyro
@@ -62,6 +64,7 @@ Magnetometers:
- st,lsm303dlhc-magn
- st,lsm303dlm-magn
- st,lis3mdl-magn
+- st,lis2mdl
Pressure sensors:
- st,lps001wp-press
diff --git a/Documentation/devicetree/bindings/iio/temperature/tsys01.txt b/Documentation/devicetree/bindings/iio/temperature/tsys01.txt
new file mode 100644
index 000000000000..0d5cc5595d0c
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/temperature/tsys01.txt
@@ -0,0 +1,19 @@
+* TSYS01 - Measurement Specialties temperature sensor
+
+Required properties:
+
+ - compatible: should be "meas,tsys01"
+ - reg: I2C address of the sensor (changeable via CSB pin)
+
+ ------------------------
+ | CSB | Device Address |
+ ------------------------
+ 1 0x76
+ 0 0x77
+
+Example:
+
+tsys01@76 {
+ compatible = "meas,tsys01";
+ reg = <0x76>;
+};
diff --git a/Documentation/devicetree/bindings/iio/timer/stm32-lptimer-trigger.txt b/Documentation/devicetree/bindings/iio/timer/stm32-lptimer-trigger.txt
new file mode 100644
index 000000000000..85e6806b17d7
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/timer/stm32-lptimer-trigger.txt
@@ -0,0 +1,23 @@
+STMicroelectronics STM32 Low-Power Timer Trigger
+
+STM32 Low-Power Timer provides trigger source (LPTIM output) that can be used
+by STM32 internal ADC and/or DAC.
+
+Must be a sub-node of an STM32 Low-Power Timer device tree node.
+See ../mfd/stm32-lptimer.txt for details about the parent node.
+
+Required properties:
+- compatible: Must be "st,stm32-lptimer-trigger".
+- reg: Identify trigger hardware block. Must be 0, 1 or 2
+ respectively for lptimer1, lptimer2 or lptimer3
+ trigger output.
+
+Example:
+ timer@40002400 {
+ compatible = "st,stm32-lptimer";
+ ...
+ trigger@0 {
+ compatible = "st,stm32-lptimer-trigger";
+ reg = <0>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt b/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt
index 55a653d15303..b8e8c769d434 100644
--- a/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt
+++ b/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt
@@ -4,7 +4,9 @@ Must be a sub-node of an STM32 Timers device tree node.
See ../mfd/stm32-timers.txt for details about the parent node.
Required parameters:
-- compatible: Must be "st,stm32-timer-trigger".
+- compatible: Must be one of:
+ "st,stm32-timer-trigger"
+ "st,stm32h7-timer-trigger"
- reg: Identify trigger hardware block.
Example:
@@ -14,7 +16,7 @@ Example:
compatible = "st,stm32-timers";
reg = <0x40010000 0x400>;
clocks = <&rcc 0 160>;
- clock-names = "clk_int";
+ clock-names = "int";
timer@0 {
compatible = "st,stm32-timer-trigger";
diff --git a/Documentation/devicetree/bindings/input/brcm,bcm-keypad.txt b/Documentation/devicetree/bindings/input/brcm,bcm-keypad.txt
index b77f50bd6403..262deab73588 100644
--- a/Documentation/devicetree/bindings/input/brcm,bcm-keypad.txt
+++ b/Documentation/devicetree/bindings/input/brcm,bcm-keypad.txt
@@ -72,7 +72,6 @@ Example:
/* Required Board specific properties */
keypad,num-rows = <5>;
keypad,num-columns = <5>;
- status = "okay";
linux,keymap = <MATRIX_KEY(0x00, 0x02, KEY_F) /* key_forward */
MATRIX_KEY(0x00, 0x03, KEY_HOME) /* key_home */
diff --git a/Documentation/devicetree/bindings/input/ti,drv260x.txt b/Documentation/devicetree/bindings/input/ti,drv260x.txt
index ee09c8f4474a..4c5312eaaa85 100644
--- a/Documentation/devicetree/bindings/input/ti,drv260x.txt
+++ b/Documentation/devicetree/bindings/input/ti,drv260x.txt
@@ -43,7 +43,7 @@ haptics: haptics@5a {
mode = <DRV260X_LRA_MODE>;
library-sel = <DRV260X_LIB_LRA>;
vib-rated-mv = <3200>;
- vib-overdriver-mv = <3200>;
+ vib-overdrive-mv = <3200>;
}
For more product information please see the link below:
diff --git a/Documentation/devicetree/bindings/input/touchscreen/colibri-vf50-ts.txt b/Documentation/devicetree/bindings/input/touchscreen/colibri-vf50-ts.txt
index 9d9e930f3251..df531b5b6a0d 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/colibri-vf50-ts.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/colibri-vf50-ts.txt
@@ -32,5 +32,4 @@ Example:
pinctrl-1 = <&pinctrl_touchctrl_default>;
pinctrl-2 = <&pinctrl_touchctrl_gpios>;
vf50-ts-min-pressure = <200>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt b/Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt
index d4927c202aef..e67e58b61706 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt
@@ -35,5 +35,4 @@ Example:
measure-delay-time = <0xfff>;
pre-charge-time = <0xffff>;
touchscreen-average-samples = <32>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/allwinner,sunxi-nmi.txt b/Documentation/devicetree/bindings/interrupt-controller/allwinner,sunxi-nmi.txt
index 81cd3692405e..4ae553eb333d 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/allwinner,sunxi-nmi.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/allwinner,sunxi-nmi.txt
@@ -3,8 +3,11 @@ Allwinner Sunxi NMI Controller
Required properties:
-- compatible : should be "allwinner,sun7i-a20-sc-nmi" or
- "allwinner,sun6i-a31-sc-nmi" or "allwinner,sun9i-a80-nmi"
+- compatible : should be one of the following:
+ - "allwinner,sun7i-a20-sc-nmi"
+ - "allwinner,sun6i-a31-sc-nmi" (deprecated)
+ - "allwinner,sun6i-a31-r-intc"
+ - "allwinner,sun9i-a80-nmi"
- reg : Specifies base physical address and size of the registers.
- interrupt-controller : Identifies the node as an interrupt controller
- #interrupt-cells : Specifies the number of cells needed to encode an
diff --git a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt
index 4c29cdab0ea5..5eb108e180fa 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt
@@ -99,7 +99,7 @@ Examples:
compatible = "arm,gic-v3-its";
msi-controller;
#msi-cells = <1>;
- reg = <0x0 0x2c200000 0 0x200000>;
+ reg = <0x0 0x2c200000 0 0x20000>;
};
};
@@ -124,14 +124,14 @@ Examples:
compatible = "arm,gic-v3-its";
msi-controller;
#msi-cells = <1>;
- reg = <0x0 0x2c200000 0 0x200000>;
+ reg = <0x0 0x2c200000 0 0x20000>;
};
gic-its@2c400000 {
compatible = "arm,gic-v3-its";
msi-controller;
#msi-cells = <1>;
- reg = <0x0 0x2c400000 0 0x200000>;
+ reg = <0x0 0x2c400000 0 0x20000>;
};
ppi-partitions {
diff --git a/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2400-i2c-ic.txt b/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2400-i2c-ic.txt
new file mode 100644
index 000000000000..033cc82e5684
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2400-i2c-ic.txt
@@ -0,0 +1,25 @@
+Device tree configuration for the I2C Interrupt Controller on the AST24XX and
+AST25XX SoCs.
+
+Required Properties:
+- #address-cells : should be 1
+- #size-cells : should be 1
+- #interrupt-cells : should be 1
+- compatible : should be "aspeed,ast2400-i2c-ic"
+ or "aspeed,ast2500-i2c-ic"
+- reg : address start and range of controller
+- interrupts : interrupt number
+- interrupt-controller : denotes that the controller receives and fires
+ new interrupts for child busses
+
+Example:
+
+i2c_ic: interrupt-controller@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ #interrupt-cells = <1>;
+ compatible = "aspeed,ast2400-i2c-ic";
+ reg = <0x0 0x40>;
+ interrupts = <12>;
+ interrupt-controller;
+};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2400-vic.txt b/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2400-vic.txt
index 6c6e85324b9d..e3fea0758d25 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2400-vic.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2400-vic.txt
@@ -1,12 +1,13 @@
Aspeed Vectored Interrupt Controller
-These bindings are for the Aspeed AST2400 interrupt controller register layout.
-The SoC has an legacy register layout, but this driver does not support that
-mode of operation.
+These bindings are for the Aspeed interrupt controller. The AST2400 and
+AST2500 SoC families include a legacy register layout before a re-designed
+layout, but the bindings do not prescribe the use of one or the other.
Required properties:
-- compatible : should be "aspeed,ast2400-vic".
+- compatible : "aspeed,ast2400-vic"
+ "aspeed,ast2500-vic"
- interrupt-controller : Identifies the node as an interrupt controller
- #interrupt-cells : Specifies the number of cells needed to encode an
diff --git a/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-scfg-msi.txt b/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-scfg-msi.txt
index 9e389493203f..49ccabbfa6f3 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-scfg-msi.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-scfg-msi.txt
@@ -4,8 +4,10 @@ Required properties:
- compatible: should be "fsl,<soc-name>-msi" to identify
Layerscape PCIe MSI controller block such as:
- "fsl,1s1021a-msi"
- "fsl,1s1043a-msi"
+ "fsl,ls1021a-msi"
+ "fsl,ls1043a-msi"
+ "fsl,ls1046a-msi"
+ "fsl,ls1043a-v1.1-msi"
- msi-controller: indicates that this is a PCIe MSI controller node
- reg: physical base address of the controller and length of memory mapped.
- interrupts: an interrupt to the parent interrupt controller.
@@ -23,7 +25,7 @@ MSI controller node
Examples:
msi1: msi-controller@1571000 {
- compatible = "fsl,1s1043a-msi";
+ compatible = "fsl,ls1043a-msi";
reg = <0x0 0x1571000 0x0 0x8>,
msi-controller;
interrupts = <0 116 0x4>;
diff --git a/Documentation/devicetree/bindings/interrupt-controller/marvell,gicp.txt b/Documentation/devicetree/bindings/interrupt-controller/marvell,gicp.txt
new file mode 100644
index 000000000000..64a00ceb7da4
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/marvell,gicp.txt
@@ -0,0 +1,27 @@
+Marvell GICP Controller
+-----------------------
+
+GICP is a Marvell extension of the GIC that allows to trigger GIC SPI
+interrupts by doing a memory transaction. It is used by the ICU
+located in the Marvell CP110 to turn wired interrupts inside the CP
+into GIC SPI interrupts.
+
+Required properties:
+
+- compatible: Must be "marvell,ap806-gicp"
+
+- reg: Must be the address and size of the GICP SPI registers
+
+- marvell,spi-ranges: tuples of GIC SPI interrupts ranges available
+ for this GICP
+
+- msi-controller: indicates that this is an MSI controller
+
+Example:
+
+gicp_spi: gicp-spi@3f0040 {
+ compatible = "marvell,ap806-gicp";
+ reg = <0x3f0040 0x10>;
+ marvell,spi-ranges = <64 64>, <288 64>;
+ msi-controller;
+};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/marvell,icu.txt b/Documentation/devicetree/bindings/interrupt-controller/marvell,icu.txt
new file mode 100644
index 000000000000..aa8bf2ec8905
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/marvell,icu.txt
@@ -0,0 +1,51 @@
+Marvell ICU Interrupt Controller
+--------------------------------
+
+The Marvell ICU (Interrupt Consolidation Unit) controller is
+responsible for collecting all wired-interrupt sources in the CP and
+communicating them to the GIC in the AP, the unit translates interrupt
+requests on input wires to MSG memory mapped transactions to the GIC.
+
+Required properties:
+
+- compatible: Should be "marvell,cp110-icu"
+
+- reg: Should contain ICU registers location and length.
+
+- #interrupt-cells: Specifies the number of cells needed to encode an
+ interrupt source. The value shall be 3.
+
+ The 1st cell is the group type of the ICU interrupt. Possible group
+ types are:
+
+ ICU_GRP_NSR (0x0) : Shared peripheral interrupt, non-secure
+ ICU_GRP_SR (0x1) : Shared peripheral interrupt, secure
+ ICU_GRP_SEI (0x4) : System error interrupt
+ ICU_GRP_REI (0x5) : RAM error interrupt
+
+ The 2nd cell is the index of the interrupt in the ICU unit.
+
+ The 3rd cell is the type of the interrupt. See arm,gic.txt for
+ details.
+
+- interrupt-controller: Identifies the node as an interrupt
+ controller.
+
+- msi-parent: Should point to the GICP controller, the GIC extension
+ that allows to trigger interrupts using MSG memory mapped
+ transactions.
+
+Example:
+
+icu: interrupt-controller@1e0000 {
+ compatible = "marvell,cp110-icu";
+ reg = <0x1e0000 0x10>;
+ #interrupt-cells = <3>;
+ interrupt-controller;
+ msi-parent = <&gicp>;
+};
+
+usb3h0: usb3@500000 {
+ interrupt-parent = <&icu>;
+ interrupts = <ICU_GRP_NSR 106 IRQ_TYPE_LEVEL_HIGH>;
+};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/mediatek,sysirq.txt b/Documentation/devicetree/bindings/interrupt-controller/mediatek,sysirq.txt
index a89c03bb1a81..07bf0b9a5139 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/mediatek,sysirq.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/mediatek,sysirq.txt
@@ -1,21 +1,24 @@
-+Mediatek 65xx/67xx/81xx sysirq
++Mediatek MT65xx/MT67xx/MT81xx sysirq
Mediatek SOCs sysirq support controllable irq inverter for each GIC SPI
interrupt.
Required properties:
-- compatible: should be one of:
- "mediatek,mt8173-sysirq"
- "mediatek,mt8135-sysirq"
- "mediatek,mt8127-sysirq"
- "mediatek,mt6795-sysirq"
- "mediatek,mt6755-sysirq"
- "mediatek,mt6592-sysirq"
- "mediatek,mt6589-sysirq"
- "mediatek,mt6582-sysirq"
- "mediatek,mt6580-sysirq"
- "mediatek,mt6577-sysirq"
- "mediatek,mt2701-sysirq"
+- compatible: should be
+ "mediatek,mt8173-sysirq", "mediatek,mt6577-sysirq": for MT8173
+ "mediatek,mt8135-sysirq", "mediatek,mt6577-sysirq": for MT8135
+ "mediatek,mt8127-sysirq", "mediatek,mt6577-sysirq": for MT8127
+ "mediatek,mt7622-sysirq", "mediatek,mt6577-sysirq": for MT7622
+ "mediatek,mt6795-sysirq", "mediatek,mt6577-sysirq": for MT6795
+ "mediatek,mt6797-sysirq", "mediatek,mt6577-sysirq": for MT6797
+ "mediatek,mt6755-sysirq", "mediatek,mt6577-sysirq": for MT6755
+ "mediatek,mt6592-sysirq", "mediatek,mt6577-sysirq": for MT6592
+ "mediatek,mt6589-sysirq", "mediatek,mt6577-sysirq": for MT6589
+ "mediatek,mt6582-sysirq", "mediatek,mt6577-sysirq": for MT6582
+ "mediatek,mt6580-sysirq", "mediatek,mt6577-sysirq": for MT6580
+ "mediatek,mt6577-sysirq": for MT6577
+ "mediatek,mt2712-sysirq", "mediatek,mt6577-sysirq": for MT2712
+ "mediatek,mt2701-sysirq", "mediatek,mt6577-sysirq": for MT2701
- interrupt-controller : Identifies the node as an interrupt controller
- #interrupt-cells : Use the same format as specified by GIC in arm,gic.txt.
- interrupt-parent: phandle of irq parent for sysirq. The parent must
diff --git a/Documentation/devicetree/bindings/interrupt-controller/open-pic.txt b/Documentation/devicetree/bindings/interrupt-controller/open-pic.txt
index 909a902dff85..ccbbfdc53c72 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/open-pic.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/open-pic.txt
@@ -92,7 +92,6 @@ Example 2:
* References
-[1] Power.org (TM) Standard for Embedded Power Architecture (TM) Platform
- Requirements (ePAPR), Version 1.0, July 2008.
- (http://www.power.org/resources/downloads/Power_ePAPR_APPROVED_v1.0.pdf)
+[1] Devicetree Specification
+ (https://www.devicetree.org/specifications/)
diff --git a/Documentation/devicetree/bindings/interrupt-controller/socionext,uniphier-aidet.txt b/Documentation/devicetree/bindings/interrupt-controller/socionext,uniphier-aidet.txt
new file mode 100644
index 000000000000..48e71d3ac2ad
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/socionext,uniphier-aidet.txt
@@ -0,0 +1,32 @@
+UniPhier AIDET
+
+UniPhier AIDET (ARM Interrupt Detector) is an add-on block for ARM GIC (Generic
+Interrupt Controller). GIC itself can handle only high level and rising edge
+interrupts. The AIDET provides logic inverter to support low level and falling
+edge interrupts.
+
+Required properties:
+- compatible: Should be one of the following:
+ "socionext,uniphier-ld4-aidet" - for LD4 SoC
+ "socionext,uniphier-pro4-aidet" - for Pro4 SoC
+ "socionext,uniphier-sld8-aidet" - for sLD8 SoC
+ "socionext,uniphier-pro5-aidet" - for Pro5 SoC
+ "socionext,uniphier-pxs2-aidet" - for PXs2/LD6b SoC
+ "socionext,uniphier-ld11-aidet" - for LD11 SoC
+ "socionext,uniphier-ld20-aidet" - for LD20 SoC
+ "socionext,uniphier-pxs3-aidet" - for PXs3 SoC
+- reg: Specifies offset and length of the register set for the device.
+- interrupt-controller: Identifies the node as an interrupt controller
+- #interrupt-cells : Specifies the number of cells needed to encode an interrupt
+ source. The value should be 2. The first cell defines the interrupt number
+ (corresponds to the SPI interrupt number of GIC). The second cell specifies
+ the trigger type as defined in interrupts.txt in this directory.
+
+Example:
+
+ aidet: aidet@5fc20000 {
+ compatible = "socionext,uniphier-pro4-aidet";
+ reg = <0x5fc20000 0x200>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu-v3.txt b/Documentation/devicetree/bindings/iommu/arm,smmu-v3.txt
index be57550e14e4..c9abbf3e4f68 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu-v3.txt
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu-v3.txt
@@ -26,6 +26,12 @@ the PCIe specification.
* "priq" - PRI Queue not empty
* "cmdq-sync" - CMD_SYNC complete
* "gerror" - Global Error activated
+ * "combined" - The combined interrupt is optional,
+ and should only be provided if the
+ hardware supports just a single,
+ combined interrupt line.
+ If provided, then the combined interrupt
+ will be used in preference to any others.
- #iommu-cells : See the generic IOMMU binding described in
devicetree/bindings/pci/pci-iommu.txt
@@ -49,6 +55,12 @@ the PCIe specification.
- hisilicon,broken-prefetch-cmd
: Avoid sending CMD_PREFETCH_* commands to the SMMU.
+- cavium,cn9900-broken-page1-regspace
+ : Replaces all page 1 offsets used for EVTQ_PROD/CONS,
+ PRIQ_PROD/CONS register access with page 0 offsets.
+ Set for Cavium ThunderX2 silicon that doesn't support
+ SMMU page1 register space.
+
** Example
smmu@2b400000 {
diff --git a/Documentation/devicetree/bindings/iommu/qcom,iommu.txt b/Documentation/devicetree/bindings/iommu/qcom,iommu.txt
new file mode 100644
index 000000000000..b2641ceb2b40
--- /dev/null
+++ b/Documentation/devicetree/bindings/iommu/qcom,iommu.txt
@@ -0,0 +1,121 @@
+* QCOM IOMMU v1 Implementation
+
+Qualcomm "B" family devices which are not compatible with arm-smmu have
+a similar looking IOMMU but without access to the global register space,
+and optionally requiring additional configuration to route context irqs
+to non-secure vs secure interrupt line.
+
+** Required properties:
+
+- compatible : Should be one of:
+
+ "qcom,msm8916-iommu"
+
+ Followed by "qcom,msm-iommu-v1".
+
+- clock-names : Should be a pair of "iface" (required for IOMMUs
+ register group access) and "bus" (required for
+ the IOMMUs underlying bus access).
+
+- clocks : Phandles for respective clocks described by
+ clock-names.
+
+- #address-cells : must be 1.
+
+- #size-cells : must be 1.
+
+- #iommu-cells : Must be 1. Index identifies the context-bank #.
+
+- ranges : Base address and size of the iommu context banks.
+
+- qcom,iommu-secure-id : secure-id.
+
+- List of sub-nodes, one per translation context bank. Each sub-node
+ has the following required properties:
+
+ - compatible : Should be one of:
+ - "qcom,msm-iommu-v1-ns" : non-secure context bank
+ - "qcom,msm-iommu-v1-sec" : secure context bank
+ - reg : Base address and size of context bank within the iommu
+ - interrupts : The context fault irq.
+
+** Optional properties:
+
+- reg : Base address and size of the SMMU local base, should
+ be only specified if the iommu requires configuration
+ for routing of context bank irq's to secure vs non-
+ secure lines. (Ie. if the iommu contains secure
+ context banks)
+
+
+** Examples:
+
+ apps_iommu: iommu@1e20000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ #iommu-cells = <1>;
+ compatible = "qcom,msm8916-iommu", "qcom,msm-iommu-v1";
+ ranges = <0 0x1e20000 0x40000>;
+ reg = <0x1ef0000 0x3000>;
+ clocks = <&gcc GCC_SMMU_CFG_CLK>,
+ <&gcc GCC_APSS_TCU_CLK>;
+ clock-names = "iface", "bus";
+ qcom,iommu-secure-id = <17>;
+
+ // mdp_0:
+ iommu-ctx@4000 {
+ compatible = "qcom,msm-iommu-v1-ns";
+ reg = <0x4000 0x1000>;
+ interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ // venus_ns:
+ iommu-ctx@5000 {
+ compatible = "qcom,msm-iommu-v1-sec";
+ reg = <0x5000 0x1000>;
+ interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+
+ gpu_iommu: iommu@1f08000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ #iommu-cells = <1>;
+ compatible = "qcom,msm8916-iommu", "qcom,msm-iommu-v1";
+ ranges = <0 0x1f08000 0x10000>;
+ clocks = <&gcc GCC_SMMU_CFG_CLK>,
+ <&gcc GCC_GFX_TCU_CLK>;
+ clock-names = "iface", "bus";
+ qcom,iommu-secure-id = <18>;
+
+ // gfx3d_user:
+ iommu-ctx@1000 {
+ compatible = "qcom,msm-iommu-v1-ns";
+ reg = <0x1000 0x1000>;
+ interrupts = <GIC_SPI 241 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ // gfx3d_priv:
+ iommu-ctx@2000 {
+ compatible = "qcom,msm-iommu-v1-ns";
+ reg = <0x2000 0x1000>;
+ interrupts = <GIC_SPI 242 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+
+ ...
+
+ venus: video-codec@1d00000 {
+ ...
+ iommus = <&apps_iommu 5>;
+ };
+
+ mdp: mdp@1a01000 {
+ ...
+ iommus = <&apps_iommu 4>;
+ };
+
+ gpu@01c00000 {
+ ...
+ iommus = <&gpu_iommu 1>, <&gpu_iommu 2>;
+ };
diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt b/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt
index 9a55ac3735e5..2098f7732264 100644
--- a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt
+++ b/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt
@@ -15,6 +15,11 @@ Required properties:
to associate with its master device. See:
Documentation/devicetree/bindings/iommu/iommu.txt
+Optional properties:
+- rockchip,disable-mmu-reset : Don't use the mmu reset operation.
+ Some mmu instances may produce unexpected results
+ when the reset operation is used.
+
Example:
vopl_mmu: iommu@ff940300 {
diff --git a/Documentation/devicetree/bindings/leds/ams,as3645a.txt b/Documentation/devicetree/bindings/leds/ams,as3645a.txt
new file mode 100644
index 000000000000..fdc40e354a64
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/ams,as3645a.txt
@@ -0,0 +1,79 @@
+Analog devices AS3645A device tree bindings
+
+The AS3645A flash LED controller can drive two LEDs, one high current
+flash LED and one indicator LED. The high current flash LED can be
+used in torch mode as well.
+
+Ranges below noted as [a, b] are closed ranges between a and b, i.e. a
+and b are included in the range.
+
+Please also see common.txt in the same directory.
+
+
+Required properties
+===================
+
+compatible : Must be "ams,as3645a".
+reg : The I2C address of the device. Typically 0x30.
+#address-cells : 1
+#size-cells : 0
+
+
+Required properties of the flash child node (0)
+===============================================
+
+reg: 0
+flash-timeout-us: Flash timeout in microseconds. The value must be in
+ the range [100000, 850000] and divisible by 50000.
+flash-max-microamp: Maximum flash current in microamperes. Has to be
+ in the range between [200000, 500000] and
+ divisible by 20000.
+led-max-microamp: Maximum torch (assist) current in microamperes. The
+ value must be in the range between [20000, 160000] and
+ divisible by 20000.
+ams,input-max-microamp: Maximum flash controller input current. The
+ value must be in the range [1250000, 2000000]
+ and divisible by 50000.
+
+
+Optional properties of the flash child node
+===========================================
+
+label : The label of the flash LED.
+
+
+Required properties of the indicator child node (1)
+===================================================
+
+reg: 1
+led-max-microamp: Maximum indicator current. The allowed values are
+ 2500, 5000, 7500 and 10000.
+
+Optional properties of the indicator child node
+===============================================
+
+label : The label of the indicator LED.
+
+
+Example
+=======
+
+ as3645a@30 {
+ #address-cells: 1
+ #size-cells: 0
+ reg = <0x30>;
+ compatible = "ams,as3645a";
+ flash@0 {
+ reg = <0x0>;
+ flash-timeout-us = <150000>;
+ flash-max-microamp = <320000>;
+ led-max-microamp = <60000>;
+ ams,input-max-microamp = <1750000>;
+ label = "as3645a:flash";
+ };
+ indicator@1 {
+ reg = <0x1>;
+ led-max-microamp = <10000>;
+ label = "as3645a:indicator";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/leds/common.txt b/Documentation/devicetree/bindings/leds/common.txt
index 24b656014089..1d4afe9644b6 100644
--- a/Documentation/devicetree/bindings/leds/common.txt
+++ b/Documentation/devicetree/bindings/leds/common.txt
@@ -1,4 +1,4 @@
-Common leds properties.
+* Common leds properties.
LED and flash LED devices provide the same basic functionality as current
regulators, but extended with LED and flash LED specific features like
@@ -49,6 +49,22 @@ Optional properties for child nodes:
- panic-indicator : This property specifies that the LED should be used,
if at all possible, as a panic indicator.
+- trigger-sources : List of devices which should be used as a source triggering
+ this LED activity. Some LEDs can be related to a specific
+ device and should somehow indicate its state. E.g. USB 2.0
+ LED may react to device(s) in a USB 2.0 port(s).
+ Another common example is switch or router with multiple
+ Ethernet ports each of them having its own LED assigned
+ (assuming they are not hardwired). In such cases this
+ property should contain phandle(s) of related source
+ device(s).
+ In many cases LED can be related to more than one device
+ (e.g. one USB LED vs. multiple USB ports). Each source
+ should be represented by a node in the device tree and be
+ referenced by a phandle and a set of phandle arguments. A
+ length of arguments should be specified by the
+ #trigger-source-cells property in the source node.
+
Required properties for flash LED child nodes:
- flash-max-microamp : Maximum flash LED supply current in microamperes.
- flash-max-timeout-us : Maximum timeout in microseconds after which the flash
@@ -59,7 +75,17 @@ property can be omitted.
For controllers that have no configurable timeout the flash-max-timeout-us
property can be omitted.
-Examples:
+* Trigger source providers
+
+Each trigger source should be represented by a device tree node. It may be e.g.
+a USB port or an Ethernet device.
+
+Required properties for trigger source:
+- #trigger-source-cells : Number of cells in a source trigger. Typically 0 for
+ nodes of simple trigger sources (e.g. a specific USB
+ port).
+
+* Examples
gpio-leds {
compatible = "gpio-leds";
@@ -69,6 +95,11 @@ gpio-leds {
linux,default-trigger = "heartbeat";
gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
};
+
+ usb {
+ gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
+ trigger-sources = <&ohci_port1>, <&ehci_port1>;
+ };
};
max77693-led {
diff --git a/Documentation/devicetree/bindings/leds/irled/gpio-ir-tx.txt b/Documentation/devicetree/bindings/leds/irled/gpio-ir-tx.txt
new file mode 100644
index 000000000000..cbe8dfd29715
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/irled/gpio-ir-tx.txt
@@ -0,0 +1,14 @@
+Device tree bindings for IR LED connected through gpio pin which is used as
+remote controller transmitter.
+
+Required properties:
+ - compatible: should be "gpio-ir-tx".
+ - gpios : Should specify the IR LED GPIO, see "gpios property" in
+ Documentation/devicetree/bindings/gpio/gpio.txt. Active low LEDs
+ should be indicated using flags in the GPIO specifier.
+
+Example:
+ irled@0 {
+ compatible = "gpio-ir-tx";
+ gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/leds/irled/pwm-ir-tx.txt b/Documentation/devicetree/bindings/leds/irled/pwm-ir-tx.txt
new file mode 100644
index 000000000000..66e5672c2e3d
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/irled/pwm-ir-tx.txt
@@ -0,0 +1,13 @@
+Device tree bindings for IR LED connected through pwm pin which is used as
+remote controller transmitter.
+
+Required properties:
+ - compatible: should be "pwm-ir-tx".
+ - pwms : PWM property to point to the PWM device (phandle)/port (id)
+ and to specify the period time to be used: <&phandle id period_ns>;
+
+Example:
+ irled {
+ compatible = "pwm-ir-tx";
+ pwms = <&pwm0 0 10000000>;
+ };
diff --git a/Documentation/devicetree/bindings/leds/leds-gpio.txt b/Documentation/devicetree/bindings/leds/leds-gpio.txt
index 76535ca37120..a48dda268f81 100644
--- a/Documentation/devicetree/bindings/leds/leds-gpio.txt
+++ b/Documentation/devicetree/bindings/leds/leds-gpio.txt
@@ -18,6 +18,9 @@ LED sub-node properties:
see Documentation/devicetree/bindings/leds/common.txt
- retain-state-suspended: (optional) The suspend state can be retained.Such
as charge-led gpio.
+- retain-state-shutdown: (optional) Retain the state of the LED on shutdown.
+ Useful in BMC systems, for example when the BMC is rebooted while the host
+ remains up.
- panic-indicator : (optional)
see Documentation/devicetree/bindings/leds/common.txt
diff --git a/Documentation/devicetree/bindings/leds/leds-pca955x.txt b/Documentation/devicetree/bindings/leds/leds-pca955x.txt
new file mode 100644
index 000000000000..7984efb767b4
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-pca955x.txt
@@ -0,0 +1,88 @@
+* NXP - pca955x LED driver
+
+The PCA955x family of chips are I2C LED blinkers whose pins not used
+to control LEDs can be used as general purpose I/Os. The GPIO pins can
+be input or output, and output pins can also be pulse-width controlled.
+
+Required properties:
+- compatible : should be one of :
+ "nxp,pca9550"
+ "nxp,pca9551"
+ "nxp,pca9552"
+ "nxp,pca9553"
+- #address-cells: must be 1
+- #size-cells: must be 0
+- reg: I2C slave address. depends on the model.
+
+Optional properties:
+- gpio-controller: allows pins to be used as GPIOs.
+- #gpio-cells: must be 2.
+- gpio-line-names: define the names of the GPIO lines
+
+LED sub-node properties:
+- reg : number of LED line.
+ from 0 to 1 for the pca9550
+ from 0 to 7 for the pca9551
+ from 0 to 15 for the pca9552
+ from 0 to 3 for the pca9553
+- type: (optional) either
+ PCA9532_TYPE_NONE
+ PCA9532_TYPE_LED
+ PCA9532_TYPE_GPIO
+ see dt-bindings/leds/leds-pca955x.h (default to LED)
+- label : (optional)
+ see Documentation/devicetree/bindings/leds/common.txt
+- linux,default-trigger : (optional)
+ see Documentation/devicetree/bindings/leds/common.txt
+
+Examples:
+
+pca9552: pca9552@60 {
+ compatible = "nxp,pca9552";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x60>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-line-names = "GPIO12", "GPIO13", "GPIO14", "GPIO15";
+
+ gpio@12 {
+ reg = <12>;
+ type = <PCA955X_TYPE_GPIO>;
+ };
+ gpio@13 {
+ reg = <13>;
+ type = <PCA955X_TYPE_GPIO>;
+ };
+ gpio@14 {
+ reg = <14>;
+ type = <PCA955X_TYPE_GPIO>;
+ };
+ gpio@15 {
+ reg = <15>;
+ type = <PCA955X_TYPE_GPIO>;
+ };
+
+ led@0 {
+ label = "red:power";
+ linux,default-trigger = "default-on";
+ reg = <0>;
+ type = <PCA955X_TYPE_LED>;
+ };
+ led@1 {
+ label = "green:power";
+ reg = <1>;
+ type = <PCA955X_TYPE_LED>;
+ };
+ led@2 {
+ label = "pca9552:yellow";
+ reg = <2>;
+ type = <PCA955X_TYPE_LED>;
+ };
+ led@3 {
+ label = "pca9552:white";
+ reg = <3>;
+ type = <PCA955X_TYPE_LED>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/leds/pca963x.txt b/Documentation/devicetree/bindings/leds/pca963x.txt
index dfbdb123a9bf..4eee41482041 100644
--- a/Documentation/devicetree/bindings/leds/pca963x.txt
+++ b/Documentation/devicetree/bindings/leds/pca963x.txt
@@ -10,6 +10,7 @@ Optional properties:
- nxp,period-scale : In some configurations, the chip blinks faster than expected.
This parameter provides a scaling ratio (fixed point, decimal divided
by 1000) to compensate, e.g. 1300=1.3x and 750=0.75x.
+- nxp,inverted-out: invert the polarity of the generated PWM
Each led is represented as a sub-node of the nxp,pca963x device.
diff --git a/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.txt b/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.txt
new file mode 100644
index 000000000000..fb961c310f44
--- /dev/null
+++ b/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.txt
@@ -0,0 +1,46 @@
+Binding for the Qualcomm APCS global block
+==========================================
+
+This binding describes the APCS "global" block found in various Qualcomm
+platforms.
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: must be one of:
+ "qcom,msm8916-apcs-kpss-global",
+ "qcom,msm8996-apcs-hmss-global"
+
+- reg:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: must specify the base address and size of the global block
+
+- #mbox-cells:
+ Usage: required
+ Value type: <u32>
+ Definition: as described in mailbox.txt, must be 1
+
+
+= EXAMPLE
+The following example describes the APCS HMSS found in MSM8996 and part of the
+GLINK RPM referencing the "rpm_hlos" doorbell therein.
+
+ apcs_glb: mailbox@9820000 {
+ compatible = "qcom,msm8996-apcs-hmss-global";
+ reg = <0x9820000 0x1000>;
+
+ #mbox-cells = <1>;
+ };
+
+ rpm-glink {
+ compatible = "qcom,glink-rpm";
+
+ interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
+
+ qcom,rpm-msg-ram = <&rpm_msg_ram>;
+
+ mboxes = <&apcs_glb 0>;
+ mbox-names = "rpm_hlos";
+ };
+
diff --git a/Documentation/devicetree/bindings/media/cec.txt b/Documentation/devicetree/bindings/media/cec.txt
new file mode 100644
index 000000000000..22d7aae3d3d7
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/cec.txt
@@ -0,0 +1,8 @@
+Common bindings for HDMI CEC adapters
+
+- hdmi-phandle: phandle to the HDMI controller.
+
+- needs-hpd: if present the CEC support is only available when the HPD
+ is high. Some boards only let the CEC pin through if the HPD is high,
+ for example if there is a level converter that uses the HPD to power
+ up or down.
diff --git a/Documentation/devicetree/bindings/media/i2c/adv7180.txt b/Documentation/devicetree/bindings/media/i2c/adv7180.txt
index 4da486f96ff6..552b6a82cb1f 100644
--- a/Documentation/devicetree/bindings/media/i2c/adv7180.txt
+++ b/Documentation/devicetree/bindings/media/i2c/adv7180.txt
@@ -6,6 +6,8 @@ digital interfaces like MIPI CSI-2 or parallel video.
Required Properties :
- compatible : value must be one of
"adi,adv7180"
+ "adi,adv7180cp"
+ "adi,adv7180st"
"adi,adv7182"
"adi,adv7280"
"adi,adv7280-m"
@@ -15,6 +17,19 @@ Required Properties :
"adi,adv7282"
"adi,adv7282-m"
+Device nodes of "adi,adv7180cp" and "adi,adv7180st" must contain one
+'port' child node per device input and output port, in accordance with the
+video interface bindings defined in
+Documentation/devicetree/bindings/media/video-interfaces.txt. The port
+nodes are numbered as follows.
+
+ Port adv7180cp adv7180st
+-------------------------------------------------------------------
+ Input 0-2 0-5
+ Output 3 6
+
+The digital output port node must contain at least one endpoint.
+
Optional Properties :
- powerdown-gpios: reference to the GPIO connected to the powerdown pin,
if any.
diff --git a/Documentation/devicetree/bindings/media/i2c/adv748x.txt b/Documentation/devicetree/bindings/media/i2c/adv748x.txt
new file mode 100644
index 000000000000..21ffb5ed8183
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/adv748x.txt
@@ -0,0 +1,95 @@
+* Analog Devices ADV748X video decoder with HDMI receiver
+
+The ADV7481 and ADV7482 are multi format video decoders with an integrated
+HDMI receiver. They can output CSI-2 on two independent outputs TXA and TXB
+from three input sources HDMI, analog and TTL.
+
+Required Properties:
+
+ - compatible: Must contain one of the following
+ - "adi,adv7481" for the ADV7481
+ - "adi,adv7482" for the ADV7482
+
+ - reg: I2C slave address
+
+Optional Properties:
+
+ - interrupt-names: Should specify the interrupts as "intrq1", "intrq2" and/or
+ "intrq3". All interrupts are optional. The "intrq3" interrupt
+ is only available on the adv7481
+ - interrupts: Specify the interrupt lines for the ADV748x
+
+The device node must contain one 'port' child node per device input and output
+port, in accordance with the video interface bindings defined in
+Documentation/devicetree/bindings/media/video-interfaces.txt. The port nodes
+are numbered as follows.
+
+ Name Type Port
+ ---------------------------------------
+ AIN0 sink 0
+ AIN1 sink 1
+ AIN2 sink 2
+ AIN3 sink 3
+ AIN4 sink 4
+ AIN5 sink 5
+ AIN6 sink 6
+ AIN7 sink 7
+ HDMI sink 8
+ TTL sink 9
+ TXA source 10
+ TXB source 11
+
+The digital output port nodes must contain at least one endpoint.
+
+Ports are optional if they are not connected to anything at the hardware level.
+
+Example:
+
+ video-receiver@70 {
+ compatible = "adi,adv7482";
+ reg = <0x70>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ interrupt-parent = <&gpio6>;
+ interrupt-names = "intrq1", "intrq2";
+ interrupts = <30 IRQ_TYPE_LEVEL_LOW>,
+ <31 IRQ_TYPE_LEVEL_LOW>;
+
+ port@7 {
+ reg = <7>;
+
+ adv7482_ain7: endpoint {
+ remote-endpoint = <&cvbs_in>;
+ };
+ };
+
+ port@8 {
+ reg = <8>;
+
+ adv7482_hdmi: endpoint {
+ remote-endpoint = <&hdmi_in>;
+ };
+ };
+
+ port@10 {
+ reg = <10>;
+
+ adv7482_txa: endpoint {
+ clock-lanes = <0>;
+ data-lanes = <1 2 3 4>;
+ remote-endpoint = <&csi40_in>;
+ };
+ };
+
+ port@11 {
+ reg = <11>;
+
+ adv7482_txb: endpoint {
+ clock-lanes = <0>;
+ data-lanes = <1>;
+ remote-endpoint = <&csi20_in>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/media/i2c/dongwoon,dw9714.txt b/Documentation/devicetree/bindings/media/i2c/dongwoon,dw9714.txt
new file mode 100644
index 000000000000..b88dcdd41def
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/dongwoon,dw9714.txt
@@ -0,0 +1,9 @@
+Dongwoon Anatech DW9714 camera voice coil lens driver
+
+DW9174 is a 10-bit DAC with current sink capability. It is intended
+for driving voice coil lenses in camera modules.
+
+Mandatory properties:
+
+- compatible: "dongwoon,dw9714"
+- reg: I²C slave address
diff --git a/Documentation/devicetree/bindings/media/i2c/max2175.txt b/Documentation/devicetree/bindings/media/i2c/max2175.txt
new file mode 100644
index 000000000000..02b4e9cd7b1b
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/max2175.txt
@@ -0,0 +1,59 @@
+Maxim Integrated MAX2175 RF to Bits tuner
+-----------------------------------------
+
+The MAX2175 IC is an advanced analog/digital hybrid-radio receiver with
+RF to Bits® front-end designed for software-defined radio solutions.
+
+Required properties:
+--------------------
+- compatible: "maxim,max2175" for MAX2175 RF-to-bits tuner.
+- clocks: clock specifier.
+- port: child port node corresponding to the I2S output, in accordance with
+ the video interface bindings defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt. The port
+ node must contain at least one endpoint.
+
+Optional properties:
+--------------------
+- maxim,master : phandle to the master tuner if it is a slave. This
+ is used to define two tuners in diversity mode
+ (1 master, 1 slave). By default each tuner is an
+ individual master.
+- maxim,refout-load : load capacitance value (in picofarads) on reference
+ output drive level. The possible load values are:
+ 0 (default - refout disabled)
+ 10
+ 20
+ 30
+ 40
+ 60
+ 70
+- maxim,am-hiz-filter : empty property indicates the AM Hi-Z filter is used
+ in this hardware for AM antenna input.
+
+Example:
+--------
+
+Board specific DTS file
+
+/* Fixed XTAL clock node */
+maxim_xtal: clock {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <36864000>;
+};
+
+/* A tuner device instance under i2c bus */
+max2175_0: tuner@60 {
+ compatible = "maxim,max2175";
+ reg = <0x60>;
+ clocks = <&maxim_xtal>;
+ maxim,refout-load = <10>;
+
+ port {
+ max2175_0_ep: endpoint {
+ remote-endpoint = <&slave_rx_device>;
+ };
+ };
+
+};
diff --git a/Documentation/devicetree/bindings/media/i2c/ov5640.txt b/Documentation/devicetree/bindings/media/i2c/ov5640.txt
new file mode 100644
index 000000000000..540b36c4b1f2
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/ov5640.txt
@@ -0,0 +1,45 @@
+* Omnivision OV5640 MIPI CSI-2 sensor
+
+Required Properties:
+- compatible: should be "ovti,ov5640"
+- clocks: reference to the xclk input clock.
+- clock-names: should be "xclk".
+- DOVDD-supply: Digital I/O voltage supply, 1.8 volts
+- AVDD-supply: Analog voltage supply, 2.8 volts
+- DVDD-supply: Digital core voltage supply, 1.5 volts
+
+Optional Properties:
+- reset-gpios: reference to the GPIO connected to the reset pin, if any.
+ This is an active low signal to the OV5640.
+- powerdown-gpios: reference to the GPIO connected to the powerdown pin,
+ if any. This is an active high signal to the OV5640.
+
+The device node must contain one 'port' child node for its digital output
+video port, in accordance with the video interface bindings defined in
+Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+Example:
+
+&i2c1 {
+ ov5640: camera@3c {
+ compatible = "ovti,ov5640";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ov5640>;
+ reg = <0x3c>;
+ clocks = <&clks IMX6QDL_CLK_CKO>;
+ clock-names = "xclk";
+ DOVDD-supply = <&vgen4_reg>; /* 1.8v */
+ AVDD-supply = <&vgen3_reg>; /* 2.8v */
+ DVDD-supply = <&vgen2_reg>; /* 1.5v */
+ powerdown-gpios = <&gpio1 19 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio1 20 GPIO_ACTIVE_LOW>;
+
+ port {
+ ov5640_to_mipi_csi2: endpoint {
+ remote-endpoint = <&mipi_csi2_from_ov5640>;
+ clock-lanes = <0>;
+ data-lanes = <1 2>;
+ };
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/media/imx.txt b/Documentation/devicetree/bindings/media/imx.txt
new file mode 100644
index 000000000000..77f4b0a7fd2b
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/imx.txt
@@ -0,0 +1,53 @@
+Freescale i.MX Media Video Device
+=================================
+
+Video Media Controller node
+---------------------------
+
+This is the media controller node for video capture support. It is a
+virtual device that lists the camera serial interface nodes that the
+media device will control.
+
+Required properties:
+- compatible : "fsl,imx-capture-subsystem";
+- ports : Should contain a list of phandles pointing to camera
+ sensor interface ports of IPU devices
+
+example:
+
+capture-subsystem {
+ compatible = "fsl,imx-capture-subsystem";
+ ports = <&ipu1_csi0>, <&ipu1_csi1>;
+};
+
+
+mipi_csi2 node
+--------------
+
+This is the device node for the MIPI CSI-2 Receiver core in the i.MX
+SoC. This is a Synopsys Designware MIPI CSI-2 host controller core
+combined with a D-PHY core mixed into the same register block. In
+addition this device consists of an i.MX-specific "CSI2IPU gasket"
+glue logic, also controlled from the same register block. The CSI2IPU
+gasket demultiplexes the four virtual channel streams from the host
+controller's 32-bit output image bus onto four 16-bit parallel busses
+to the i.MX IPU CSIs.
+
+Required properties:
+- compatible : "fsl,imx6-mipi-csi2";
+- reg : physical base address and length of the register set;
+- clocks : the MIPI CSI-2 receiver requires three clocks: hsi_tx
+ (the D-PHY clock), video_27m (D-PHY PLL reference
+ clock), and eim_podf;
+- clock-names : must contain "dphy", "ref", "pix";
+- port@* : five port nodes must exist, containing endpoints
+ connecting to the source and sink devices according to
+ of_graph bindings. The first port is an input port,
+ connecting with a MIPI CSI-2 source, and ports 1
+ through 4 are output ports connecting with parallel
+ bus sink endpoint nodes and correspond to the four
+ MIPI CSI-2 virtual channel outputs.
+
+Optional properties:
+- interrupts : must contain two level-triggered interrupts,
+ in order: 100 and 101;
diff --git a/Documentation/devicetree/bindings/media/mediatek-mdp.txt b/Documentation/devicetree/bindings/media/mediatek-mdp.txt
index 4182063a54db..0d03e3ae2be2 100644
--- a/Documentation/devicetree/bindings/media/mediatek-mdp.txt
+++ b/Documentation/devicetree/bindings/media/mediatek-mdp.txt
@@ -2,7 +2,7 @@
Media Data Path is used for scaling and color space conversion.
-Required properties (controller (parent) node):
+Required properties (controller node):
- compatible: "mediatek,mt8173-mdp"
- mediatek,vpu: the node of video processor unit, see
Documentation/devicetree/bindings/media/mediatek-vpu.txt for details.
@@ -32,21 +32,16 @@ Required properties (DMA function blocks, child node):
for details.
Example:
-mdp {
- compatible = "mediatek,mt8173-mdp";
- #address-cells = <2>;
- #size-cells = <2>;
- ranges;
- mediatek,vpu = <&vpu>;
-
mdp_rdma0: rdma@14001000 {
compatible = "mediatek,mt8173-mdp-rdma";
+ "mediatek,mt8173-mdp";
reg = <0 0x14001000 0 0x1000>;
clocks = <&mmsys CLK_MM_MDP_RDMA0>,
<&mmsys CLK_MM_MUTEX_32K>;
power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
iommus = <&iommu M4U_PORT_MDP_RDMA0>;
mediatek,larb = <&larb0>;
+ mediatek,vpu = <&vpu>;
};
mdp_rdma1: rdma@14002000 {
@@ -106,4 +101,3 @@ mdp {
iommus = <&iommu M4U_PORT_MDP_WROT1>;
mediatek,larb = <&larb4>;
};
-};
diff --git a/Documentation/devicetree/bindings/media/meson-ao-cec.txt b/Documentation/devicetree/bindings/media/meson-ao-cec.txt
new file mode 100644
index 000000000000..8671bdb08080
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/meson-ao-cec.txt
@@ -0,0 +1,28 @@
+* Amlogic Meson AO-CEC driver
+
+The Amlogic Meson AO-CEC module is present is Amlogic SoCs and its purpose is
+to handle communication between HDMI connected devices over the CEC bus.
+
+Required properties:
+ - compatible : value should be following
+ "amlogic,meson-gx-ao-cec"
+
+ - reg : Physical base address of the IP registers and length of memory
+ mapped region.
+
+ - interrupts : AO-CEC interrupt number to the CPU.
+ - clocks : from common clock binding: handle to AO-CEC clock.
+ - clock-names : from common clock binding: must contain "core",
+ corresponding to entry in the clocks property.
+ - hdmi-phandle: phandle to the HDMI controller
+
+Example:
+
+cec_AO: cec@100 {
+ compatible = "amlogic,meson-gx-ao-cec";
+ reg = <0x0 0x00100 0x0 0x14>;
+ interrupts = <GIC_SPI 199 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkc_AO CLKID_AO_CEC_32K>;
+ clock-names = "core";
+ hdmi-phandle = <&hdmi_tx>;
+};
diff --git a/Documentation/devicetree/bindings/media/mtk-cir.txt b/Documentation/devicetree/bindings/media/mtk-cir.txt
index 2be2005577d6..5e18087ce11f 100644
--- a/Documentation/devicetree/bindings/media/mtk-cir.txt
+++ b/Documentation/devicetree/bindings/media/mtk-cir.txt
@@ -2,10 +2,14 @@ Device-Tree bindings for Mediatek consumer IR controller
found in Mediatek SoC family
Required properties:
-- compatible : "mediatek,mt7623-cir"
+- compatible : Should be
+ "mediatek,mt7623-cir": for MT7623 SoC
+ "mediatek,mt7622-cir": for MT7622 SoC
- clocks : list of clock specifiers, corresponding to
entries in clock-names property;
-- clock-names : should contain "clk" entries;
+- clock-names : should contain
+ - "clk" entries: for MT7623 SoC
+ - "clk", "bus" entries: for MT7622 SoC
- interrupts : should contain IR IRQ number;
- reg : should contain IO map address for IR.
diff --git a/Documentation/devicetree/bindings/media/pxa-camera.txt b/Documentation/devicetree/bindings/media/pxa-camera.txt
index 11f5b5d51af8..bc03ec096269 100644
--- a/Documentation/devicetree/bindings/media/pxa-camera.txt
+++ b/Documentation/devicetree/bindings/media/pxa-camera.txt
@@ -24,7 +24,6 @@ Example:
clock-frequency = <50000000>;
clock-output-names = "qci_mclk";
- status = "okay";
port {
#address-cells = <1>;
diff --git a/Documentation/devicetree/bindings/media/qcom,camss.txt b/Documentation/devicetree/bindings/media/qcom,camss.txt
new file mode 100644
index 000000000000..cadecebc73f7
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/qcom,camss.txt
@@ -0,0 +1,197 @@
+Qualcomm Camera Subsystem
+
+* Properties
+
+- compatible:
+ Usage: required
+ Value type: <stringlist>
+ Definition: Should contain:
+ - "qcom,msm8916-camss"
+- reg:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: Register ranges as listed in the reg-names property.
+- reg-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: Should contain the following entries:
+ - "csiphy0"
+ - "csiphy0_clk_mux"
+ - "csiphy1"
+ - "csiphy1_clk_mux"
+ - "csid0"
+ - "csid1"
+ - "ispif"
+ - "csi_clk_mux"
+ - "vfe0"
+- interrupts:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: Interrupts as listed in the interrupt-names property.
+- interrupt-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: Should contain the following entries:
+ - "csiphy0"
+ - "csiphy1"
+ - "csid0"
+ - "csid1"
+ - "ispif"
+ - "vfe0"
+- power-domains:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: A phandle and power domain specifier pairs to the
+ power domain which is responsible for collapsing
+ and restoring power to the peripheral.
+- clocks:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: A list of phandle and clock specifier pairs as listed
+ in clock-names property.
+- clock-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: Should contain the following entries:
+ - "camss_top_ahb"
+ - "ispif_ahb"
+ - "csiphy0_timer"
+ - "csiphy1_timer"
+ - "csi0_ahb"
+ - "csi0"
+ - "csi0_phy"
+ - "csi0_pix"
+ - "csi0_rdi"
+ - "csi1_ahb"
+ - "csi1"
+ - "csi1_phy"
+ - "csi1_pix"
+ - "csi1_rdi"
+ - "camss_ahb"
+ - "camss_vfe_vfe"
+ - "camss_csi_vfe"
+ - "iface"
+ - "bus"
+- vdda-supply:
+ Usage: required
+ Value type: <phandle>
+ Definition: A phandle to voltage supply for CSI2.
+- iommus:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: A list of phandle and IOMMU specifier pairs.
+
+* Nodes
+
+- ports:
+ Usage: required
+ Definition: As described in video-interfaces.txt in same directory.
+ Properties:
+ - reg:
+ Usage: required
+ Value type: <u32>
+ Definition: Selects CSI2 PHY interface - PHY0 or PHY1.
+ Endpoint node properties:
+ - clock-lanes:
+ Usage: required
+ Value type: <u32>
+ Definition: The physical clock lane index. The value
+ must always be <1> as the physical clock
+ lane is lane 1.
+ - data-lanes:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: An array of physical data lanes indexes.
+ Position of an entry determines the logical
+ lane number, while the value of an entry
+ indicates physical lane index. Lane swapping
+ is supported.
+
+* An Example
+
+ camss: camss@1b00000 {
+ compatible = "qcom,msm8916-camss";
+ reg = <0x1b0ac00 0x200>,
+ <0x1b00030 0x4>,
+ <0x1b0b000 0x200>,
+ <0x1b00038 0x4>,
+ <0x1b08000 0x100>,
+ <0x1b08400 0x100>,
+ <0x1b0a000 0x500>,
+ <0x1b00020 0x10>,
+ <0x1b10000 0x1000>;
+ reg-names = "csiphy0",
+ "csiphy0_clk_mux",
+ "csiphy1",
+ "csiphy1_clk_mux",
+ "csid0",
+ "csid1",
+ "ispif",
+ "csi_clk_mux",
+ "vfe0";
+ interrupts = <GIC_SPI 78 0>,
+ <GIC_SPI 79 0>,
+ <GIC_SPI 51 0>,
+ <GIC_SPI 52 0>,
+ <GIC_SPI 55 0>,
+ <GIC_SPI 57 0>;
+ interrupt-names = "csiphy0",
+ "csiphy1",
+ "csid0",
+ "csid1",
+ "ispif",
+ "vfe0";
+ power-domains = <&gcc VFE_GDSC>;
+ clocks = <&gcc GCC_CAMSS_TOP_AHB_CLK>,
+ <&gcc GCC_CAMSS_ISPIF_AHB_CLK>,
+ <&gcc GCC_CAMSS_CSI0PHYTIMER_CLK>,
+ <&gcc GCC_CAMSS_CSI1PHYTIMER_CLK>,
+ <&gcc GCC_CAMSS_CSI0_AHB_CLK>,
+ <&gcc GCC_CAMSS_CSI0_CLK>,
+ <&gcc GCC_CAMSS_CSI0PHY_CLK>,
+ <&gcc GCC_CAMSS_CSI0PIX_CLK>,
+ <&gcc GCC_CAMSS_CSI0RDI_CLK>,
+ <&gcc GCC_CAMSS_CSI1_AHB_CLK>,
+ <&gcc GCC_CAMSS_CSI1_CLK>,
+ <&gcc GCC_CAMSS_CSI1PHY_CLK>,
+ <&gcc GCC_CAMSS_CSI1PIX_CLK>,
+ <&gcc GCC_CAMSS_CSI1RDI_CLK>,
+ <&gcc GCC_CAMSS_AHB_CLK>,
+ <&gcc GCC_CAMSS_VFE0_CLK>,
+ <&gcc GCC_CAMSS_CSI_VFE0_CLK>,
+ <&gcc GCC_CAMSS_VFE_AHB_CLK>,
+ <&gcc GCC_CAMSS_VFE_AXI_CLK>;
+ clock-names = "camss_top_ahb",
+ "ispif_ahb",
+ "csiphy0_timer",
+ "csiphy1_timer",
+ "csi0_ahb",
+ "csi0",
+ "csi0_phy",
+ "csi0_pix",
+ "csi0_rdi",
+ "csi1_ahb",
+ "csi1",
+ "csi1_phy",
+ "csi1_pix",
+ "csi1_rdi",
+ "camss_ahb",
+ "camss_vfe_vfe",
+ "camss_csi_vfe",
+ "iface",
+ "bus";
+ vdda-supply = <&pm8916_l2>;
+ iommus = <&apps_iommu 3>;
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ reg = <0>;
+ csiphy0_ep: endpoint {
+ clock-lanes = <1>;
+ data-lanes = <0 2>;
+ remote-endpoint = <&ov5645_ep>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/media/qcom,venus.txt b/Documentation/devicetree/bindings/media/qcom,venus.txt
new file mode 100644
index 000000000000..2693449daf73
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/qcom,venus.txt
@@ -0,0 +1,107 @@
+* Qualcomm Venus video encoder/decoder accelerators
+
+- compatible:
+ Usage: required
+ Value type: <stringlist>
+ Definition: Value should contain one of:
+ - "qcom,msm8916-venus"
+ - "qcom,msm8996-venus"
+- reg:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: Register base address and length of the register map.
+- interrupts:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: Should contain interrupt line number.
+- clocks:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: A List of phandle and clock specifier pairs as listed
+ in clock-names property.
+- clock-names:
+ Usage: required for msm8916
+ Value type: <stringlist>
+ Definition: Should contain the following entries:
+ - "core" Core video accelerator clock
+ - "iface" Video accelerator AHB clock
+ - "bus" Video accelerator AXI clock
+- clock-names:
+ Usage: required for msm8996
+ Value type: <stringlist>
+ Definition: Should contain the following entries:
+ - "core" Core video accelerator clock
+ - "iface" Video accelerator AHB clock
+ - "bus" Video accelerator AXI clock
+ - "mbus" Video MAXI clock
+- power-domains:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: A phandle and power domain specifier pairs to the
+ power domain which is responsible for collapsing
+ and restoring power to the peripheral.
+- iommus:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: A list of phandle and IOMMU specifier pairs.
+- memory-region:
+ Usage: required
+ Value type: <phandle>
+ Definition: reference to the reserved-memory for the firmware
+ memory region.
+
+* Subnodes
+The Venus video-codec node must contain two subnodes representing
+video-decoder and video-encoder.
+
+Every of video-encoder or video-decoder subnode should have:
+
+- compatible:
+ Usage: required
+ Value type: <stringlist>
+ Definition: Value should contain "venus-decoder" or "venus-encoder"
+- clocks:
+ Usage: required for msm8996
+ Value type: <prop-encoded-array>
+ Definition: A List of phandle and clock specifier pairs as listed
+ in clock-names property.
+- clock-names:
+ Usage: required for msm8996
+ Value type: <stringlist>
+ Definition: Should contain the following entries:
+ - "core" Subcore video accelerator clock
+
+- power-domains:
+ Usage: required for msm8996
+ Value type: <prop-encoded-array>
+ Definition: A phandle and power domain specifier pairs to the
+ power domain which is responsible for collapsing
+ and restoring power to the subcore.
+
+* An Example
+ video-codec@1d00000 {
+ compatible = "qcom,msm8916-venus";
+ reg = <0x01d00000 0xff000>;
+ interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&gcc GCC_VENUS0_VCODEC0_CLK>,
+ <&gcc GCC_VENUS0_AHB_CLK>,
+ <&gcc GCC_VENUS0_AXI_CLK>;
+ clock-names = "core", "iface", "bus";
+ power-domains = <&gcc VENUS_GDSC>;
+ iommus = <&apps_iommu 5>;
+ memory-region = <&venus_mem>;
+
+ video-decoder {
+ compatible = "venus-decoder";
+ clocks = <&mmcc VIDEO_SUBCORE0_CLK>;
+ clock-names = "core";
+ power-domains = <&mmcc VENUS_CORE0_GDSC>;
+ };
+
+ video-encoder {
+ compatible = "venus-encoder";
+ clocks = <&mmcc VIDEO_SUBCORE1_CLK>;
+ clock-names = "core";
+ power-domains = <&mmcc VENUS_CORE1_GDSC>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/media/rcar_vin.txt b/Documentation/devicetree/bindings/media/rcar_vin.txt
index 6a4e61cbe011..6e4ef8caf759 100644
--- a/Documentation/devicetree/bindings/media/rcar_vin.txt
+++ b/Documentation/devicetree/bindings/media/rcar_vin.txt
@@ -1,5 +1,5 @@
-Renesas RCar Video Input driver (rcar_vin)
-------------------------------------------
+Renesas R-Car Video Input driver (rcar_vin)
+-------------------------------------------
The rcar_vin device provides video input capabilities for the Renesas R-Car
family of devices. The current blocks are always slaves and suppot one input
diff --git a/Documentation/devicetree/bindings/media/renesas,drif.txt b/Documentation/devicetree/bindings/media/renesas,drif.txt
new file mode 100644
index 000000000000..0d8974aa8b38
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/renesas,drif.txt
@@ -0,0 +1,177 @@
+Renesas R-Car Gen3 Digital Radio Interface controller (DRIF)
+------------------------------------------------------------
+
+R-Car Gen3 DRIF is a SPI like receive only slave device. A general
+representation of DRIF interfacing with a master device is shown below.
+
++---------------------+ +---------------------+
+| |-----SCK------->|CLK |
+| Master |-----SS-------->|SYNC DRIFn (slave) |
+| |-----SD0------->|D0 |
+| |-----SD1------->|D1 |
++---------------------+ +---------------------+
+
+As per datasheet, each DRIF channel (drifn) is made up of two internal
+channels (drifn0 & drifn1). These two internal channels share the common
+CLK & SYNC. Each internal channel has its own dedicated resources like
+irq, dma channels, address space & clock. This internal split is not
+visible to the external master device.
+
+The device tree model represents each internal channel as a separate node.
+The internal channels sharing the CLK & SYNC are tied together by their
+phandles using a property called "renesas,bonding". For the rest of
+the documentation, unless explicitly stated, the word channel implies an
+internal channel.
+
+When both internal channels are enabled they need to be managed together
+as one (i.e.) they cannot operate alone as independent devices. Out of the
+two, one of them needs to act as a primary device that accepts common
+properties of both the internal channels. This channel is identified by a
+property called "renesas,primary-bond".
+
+To summarize,
+ - When both the internal channels that are bonded together are enabled,
+ the zeroth channel is selected as primary-bond. This channels accepts
+ properties common to all the members of the bond.
+ - When only one of the bonded channels need to be enabled, the property
+ "renesas,bonding" or "renesas,primary-bond" will have no effect. That
+ enabled channel can act alone as any other independent device.
+
+Required properties of an internal channel:
+-------------------------------------------
+- compatible: "renesas,r8a7795-drif" if DRIF controller is a part of R8A7795 SoC.
+ "renesas,r8a7796-drif" if DRIF controller is a part of R8A7796 SoC.
+ "renesas,rcar-gen3-drif" for a generic R-Car Gen3 compatible device.
+
+ When compatible with the generic version, nodes must list the
+ SoC-specific version corresponding to the platform first
+ followed by the generic version.
+
+- reg: offset and length of that channel.
+- interrupts: associated with that channel.
+- clocks: phandle and clock specifier of that channel.
+- clock-names: clock input name string: "fck".
+- dmas: phandles to the DMA channels.
+- dma-names: names of the DMA channel: "rx".
+- renesas,bonding: phandle to the other channel.
+
+Optional properties of an internal channel:
+-------------------------------------------
+- power-domains: phandle to the respective power domain.
+
+Required properties of an internal channel when:
+ - It is the only enabled channel of the bond (or)
+ - If it acts as primary among enabled bonds
+--------------------------------------------------------
+- pinctrl-0: pin control group to be used for this channel.
+- pinctrl-names: must be "default".
+- renesas,primary-bond: empty property indicating the channel acts as primary
+ among the bonded channels.
+- port: child port node corresponding to the data input, in accordance with
+ the video interface bindings defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt. The port
+ node must contain at least one endpoint.
+
+Optional endpoint property:
+---------------------------
+- sync-active: Indicates sync signal polarity, 0/1 for low/high respectively.
+ This property maps to SYNCAC bit in the hardware manual. The
+ default is 1 (active high).
+
+Example:
+--------
+
+(1) Both internal channels enabled:
+-----------------------------------
+
+When interfacing with a third party tuner device with two data pins as shown
+below.
+
++---------------------+ +---------------------+
+| |-----SCK------->|CLK |
+| Master |-----SS-------->|SYNC DRIFn (slave) |
+| |-----SD0------->|D0 |
+| |-----SD1------->|D1 |
++---------------------+ +---------------------+
+
+ drif00: rif@e6f40000 {
+ compatible = "renesas,r8a7795-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6f40000 0 0x64>;
+ interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 515>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x20>, <&dmac2 0x20>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ renesas,bonding = <&drif01>;
+ renesas,primary-bond;
+ pinctrl-0 = <&drif0_pins>;
+ pinctrl-names = "default";
+ port {
+ drif0_ep: endpoint {
+ remote-endpoint = <&tuner_ep>;
+ };
+ };
+ };
+
+ drif01: rif@e6f50000 {
+ compatible = "renesas,r8a7795-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6f50000 0 0x64>;
+ interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 514>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x22>, <&dmac2 0x22>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ renesas,bonding = <&drif00>;
+ };
+
+
+(2) Internal channel 1 alone is enabled:
+----------------------------------------
+
+When interfacing with a third party tuner device with one data pin as shown
+below.
+
++---------------------+ +---------------------+
+| |-----SCK------->|CLK |
+| Master |-----SS-------->|SYNC DRIFn (slave) |
+| | |D0 (unused) |
+| |-----SD-------->|D1 |
++---------------------+ +---------------------+
+
+ drif00: rif@e6f40000 {
+ compatible = "renesas,r8a7795-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6f40000 0 0x64>;
+ interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 515>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x20>, <&dmac2 0x20>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ renesas,bonding = <&drif01>;
+ };
+
+ drif01: rif@e6f50000 {
+ compatible = "renesas,r8a7795-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6f50000 0 0x64>;
+ interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 514>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x22>, <&dmac2 0x22>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ renesas,bonding = <&drif00>;
+ pinctrl-0 = <&drif0_pins>;
+ pinctrl-names = "default";
+ port {
+ drif0_ep: endpoint {
+ remote-endpoint = <&tuner_ep>;
+ sync-active = <0>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/media/s5p-cec.txt b/Documentation/devicetree/bindings/media/s5p-cec.txt
index 4bb08d9d940b..6f3756da900f 100644
--- a/Documentation/devicetree/bindings/media/s5p-cec.txt
+++ b/Documentation/devicetree/bindings/media/s5p-cec.txt
@@ -15,7 +15,11 @@ Required properties:
- clock-names : from common clock binding: must contain "hdmicec",
corresponding to entry in the clocks property.
- samsung,syscon-phandle - phandle to the PMU system controller
- - hdmi-phandle - phandle to the HDMI controller
+ - hdmi-phandle - phandle to the HDMI controller, see also cec.txt.
+
+Optional:
+ - needs-hpd : if present the CEC support is only available when the HPD
+ is high. See cec.txt for more details.
Example:
@@ -29,5 +33,4 @@ hdmicec: cec@100B0000 {
hdmi-phandle = <&hdmi>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_cec>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/media/samsung-fimc.txt b/Documentation/devicetree/bindings/media/samsung-fimc.txt
index 922d6f8e74be..e4e15d8d7521 100644
--- a/Documentation/devicetree/bindings/media/samsung-fimc.txt
+++ b/Documentation/devicetree/bindings/media/samsung-fimc.txt
@@ -166,7 +166,6 @@ Example:
clock-output-names = "cam_a_clkout", "cam_b_clkout";
pinctrl-names = "default";
pinctrl-0 = <&cam_port_a_clk_active>;
- status = "okay";
#address-cells = <1>;
#size-cells = <1>;
@@ -189,7 +188,6 @@ Example:
compatible = "samsung,exynos4210-fimc";
reg = <0x11800000 0x1000>;
interrupts = <0 85 0>;
- status = "okay";
};
csis_0: csis@11880000 {
diff --git a/Documentation/devicetree/bindings/media/st,stm32-cec.txt b/Documentation/devicetree/bindings/media/st,stm32-cec.txt
new file mode 100644
index 000000000000..6be2381c180d
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/st,stm32-cec.txt
@@ -0,0 +1,19 @@
+STMicroelectronics STM32 CEC driver
+
+Required properties:
+ - compatible : value should be "st,stm32-cec"
+ - reg : Physical base address of the IP registers and length of memory
+ mapped region.
+ - clocks : from common clock binding: handle to CEC clocks
+ - clock-names : from common clock binding: must be "cec" and "hdmi-cec".
+ - interrupts : CEC interrupt number to the CPU.
+
+Example for stm32f746:
+
+cec: cec@40006c00 {
+ compatible = "st,stm32-cec";
+ reg = <0x40006C00 0x400>;
+ interrupts = <94>;
+ clocks = <&rcc 0 STM32F7_APB1_CLOCK(CEC)>, <&rcc 1 CLK_HDMI_CEC>;
+ clock-names = "cec", "hdmi-cec";
+};
diff --git a/Documentation/devicetree/bindings/media/st,stm32-dcmi.txt b/Documentation/devicetree/bindings/media/st,stm32-dcmi.txt
new file mode 100644
index 000000000000..249790a93017
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/st,stm32-dcmi.txt
@@ -0,0 +1,45 @@
+STMicroelectronics STM32 Digital Camera Memory Interface (DCMI)
+
+Required properties:
+- compatible: "st,stm32-dcmi"
+- reg: physical base address and length of the registers set for the device
+- interrupts: should contain IRQ line for the DCMI
+- resets: reference to a reset controller,
+ see Documentation/devicetree/bindings/reset/st,stm32-rcc.txt
+- clocks: list of clock specifiers, corresponding to entries in
+ the clock-names property
+- clock-names: must contain "mclk", which is the DCMI peripherial clock
+- pinctrl: the pincontrol settings to configure muxing properly
+ for pins that connect to DCMI device.
+ See Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt.
+- dmas: phandle to DMA controller node,
+ see Documentation/devicetree/bindings/dma/stm32-dma.txt
+- dma-names: must contain "tx", which is the transmit channel from DCMI to DMA
+
+DCMI supports a single port node with parallel bus. It should contain one
+'port' child node with child 'endpoint' node. Please refer to the bindings
+defined in Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+Example:
+
+ dcmi: dcmi@50050000 {
+ compatible = "st,stm32-dcmi";
+ reg = <0x50050000 0x400>;
+ interrupts = <78>;
+ resets = <&rcc STM32F4_AHB2_RESET(DCMI)>;
+ clocks = <&rcc 0 STM32F4_AHB2_CLOCK(DCMI)>;
+ clock-names = "mclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&dcmi_pins>;
+ dmas = <&dma2 1 1 0x414 0x3>;
+ dma-names = "tx";
+ port {
+ dcmi_0: endpoint {
+ remote-endpoint = <...>;
+ bus-width = <8>;
+ hsync-active = <0>;
+ vsync-active = <0>;
+ pclk-sample = <1>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/media/stih-cec.txt b/Documentation/devicetree/bindings/media/stih-cec.txt
index 289a08b33651..8be2a040c6c6 100644
--- a/Documentation/devicetree/bindings/media/stih-cec.txt
+++ b/Documentation/devicetree/bindings/media/stih-cec.txt
@@ -9,7 +9,7 @@ Required properties:
- pinctrl-names: Contains only one value - "default"
- pinctrl-0: Specifies the pin control groups used for CEC hardware.
- resets: Reference to a reset controller
- - hdmi-phandle: Phandle to the HDMI controller
+ - hdmi-phandle: Phandle to the HDMI controller, see also cec.txt.
Example for STIH407:
diff --git a/Documentation/devicetree/bindings/media/stih407-c8sectpfe.txt b/Documentation/devicetree/bindings/media/stih407-c8sectpfe.txt
index cc51b1fd6e0c..6af3fc210ecc 100644
--- a/Documentation/devicetree/bindings/media/stih407-c8sectpfe.txt
+++ b/Documentation/devicetree/bindings/media/stih407-c8sectpfe.txt
@@ -52,7 +52,6 @@ Example:
c8sectpfe@08a20000 {
compatible = "st,stih407-c8sectpfe";
- status = "okay";
reg = <0x08a20000 0x10000>, <0x08a00000 0x4000>;
reg-names = "stfe", "stfe-ram";
interrupts = <GIC_SPI 34 IRQ_TYPE_NONE>, <GIC_SPI 35 IRQ_TYPE_NONE>;
diff --git a/Documentation/devicetree/bindings/media/ti,da850-vpif.txt b/Documentation/devicetree/bindings/media/ti,da850-vpif.txt
index df7182a63e59..e47c7ccc57f1 100644
--- a/Documentation/devicetree/bindings/media/ti,da850-vpif.txt
+++ b/Documentation/devicetree/bindings/media/ti,da850-vpif.txt
@@ -59,7 +59,6 @@ I2C-connected TVP5147 decoder:
tvp5147@5d {
compatible = "ti,tvp5147";
reg = <0x5d>;
- status = "okay";
port {
composite_in: endpoint {
diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt
index 9cd2a369125d..852041a7480c 100644
--- a/Documentation/devicetree/bindings/media/video-interfaces.txt
+++ b/Documentation/devicetree/bindings/media/video-interfaces.txt
@@ -76,6 +76,11 @@ Optional endpoint properties
mode horizontal and vertical synchronization signals are provided to the
slave device (data source) by the master device (data sink). In the master
mode the data source device is also the source of the synchronization signals.
+- bus-type: data bus type. Possible values are:
+ 0 - autodetect based on other properties (MIPI CSI-2 D-PHY, parallel or Bt656)
+ 1 - MIPI CSI-2 C-PHY
+ 2 - MIPI CSI1
+ 3 - CCP2
- bus-width: number of data lines actively used, valid for the parallel busses.
- data-shift: on the parallel data busses, if bus-width is used to specify the
number of data lines, data-shift can be used to specify which data lines are
@@ -112,7 +117,8 @@ Optional endpoint properties
should be the combined length of data-lanes and clock-lanes properties.
If the lane-polarities property is omitted, the value must be interpreted
as 0 (normal). This property is valid for serial busses only.
-
+- strobe: Whether the clock signal is used as clock (0) or strobe (1). Used
+ with CCP2, for instance.
Example
-------
diff --git a/Documentation/devicetree/bindings/media/video-mux.txt b/Documentation/devicetree/bindings/media/video-mux.txt
new file mode 100644
index 000000000000..63b9dc913e45
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/video-mux.txt
@@ -0,0 +1,60 @@
+Video Multiplexer
+=================
+
+Video multiplexers allow to select between multiple input ports. Video received
+on the active input port is passed through to the output port. Muxes described
+by this binding are controlled by a multiplexer controller that is described by
+the bindings in Documentation/devicetree/bindings/mux/mux-controller.txt
+
+Required properties:
+- compatible : should be "video-mux"
+- mux-controls : mux controller node to use for operating the mux
+- #address-cells: should be <1>
+- #size-cells: should be <0>
+- port@*: at least three port nodes containing endpoints connecting to the
+ source and sink devices according to of_graph bindings. The last port is
+ the output port, all others are inputs.
+
+Optionally, #address-cells, #size-cells, and port nodes can be grouped under a
+ports node as described in Documentation/devicetree/bindings/graph.txt.
+
+Example:
+
+ mux: mux-controller {
+ compatible = "gpio-mux";
+ #mux-control-cells = <0>;
+
+ mux-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
+ };
+
+ video-mux {
+ compatible = "video-mux";
+ mux-controls = <&mux>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ mux_in0: endpoint {
+ remote-endpoint = <&video_source0_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ mux_in1: endpoint {
+ remote-endpoint = <&video_source1_out>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ mux_out: endpoint {
+ remote-endpoint = <&capture_interface_in>;
+ };
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/media/zx-irdec.txt b/Documentation/devicetree/bindings/media/zx-irdec.txt
new file mode 100644
index 000000000000..295b9fab593e
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/zx-irdec.txt
@@ -0,0 +1,14 @@
+IR Decoder (IRDEC) on ZTE ZX family SoCs
+
+Required properties:
+ - compatible: Should be "zte,zx296718-irdec".
+ - reg: Physical base address and length of IRDEC registers.
+ - interrupts: Interrupt number of IRDEC.
+
+Exmaples:
+
+ irdec: ir-decoder@111000 {
+ compatible = "zte,zx296718-irdec";
+ reg = <0x111000 0x1000>;
+ interrupts = <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt
index 21277a56e94c..ddf46b8856a5 100644
--- a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt
+++ b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt
@@ -15,6 +15,9 @@ Required properties:
the register.
- "smi" : It's the clock for transfer data and command.
+Required property for mt2701:
+- mediatek,larb-id :the hardware id of this larb.
+
Example:
larb1: larb@16010000 {
compatible = "mediatek,mt8173-smi-larb";
@@ -25,3 +28,15 @@ Example:
<&vdecsys CLK_VDEC_LARB_CKEN>;
clock-names = "apb", "smi";
};
+
+Example for mt2701:
+ larb0: larb@14010000 {
+ compatible = "mediatek,mt2701-smi-larb";
+ reg = <0 0x14010000 0 0x1000>;
+ mediatek,smi = <&smi_common>;
+ mediatek,larb-id = <0>;
+ clocks = <&mmsys CLK_MM_SMI_LARB0>,
+ <&mmsys CLK_MM_SMI_LARB0>;
+ clock-names = "apb", "smi";
+ power-domains = <&scpsys MT2701_POWER_DOMAIN_DISP>;
+ };
diff --git a/Documentation/devicetree/bindings/memory-controllers/mvebu-devbus.txt b/Documentation/devicetree/bindings/memory-controllers/mvebu-devbus.txt
index 1ee3bc09f319..8b9388cc1ccc 100644
--- a/Documentation/devicetree/bindings/memory-controllers/mvebu-devbus.txt
+++ b/Documentation/devicetree/bindings/memory-controllers/mvebu-devbus.txt
@@ -130,7 +130,6 @@ The reg property implicitly specifies the chip select as this:
Example:
devbus-bootcs@d0010400 {
- status = "okay";
ranges = <0 0xf0000000 0x1000000>; /* @addr 0xf0000000, size 0x1000000 */
#address-cells = <1>;
#size-cells = <1>;
diff --git a/Documentation/devicetree/bindings/mfd/act8945a.txt b/Documentation/devicetree/bindings/mfd/act8945a.txt
index 462819ac3da8..e6f168db6c72 100644
--- a/Documentation/devicetree/bindings/mfd/act8945a.txt
+++ b/Documentation/devicetree/bindings/mfd/act8945a.txt
@@ -12,7 +12,6 @@ Example:
pmic@5b {
compatible = "active-semi,act8945a";
reg = <0x5b>;
- status = "okay";
active-semi,vsel-high;
@@ -79,6 +78,5 @@ Example:
active-semi,input-voltage-threshold-microvolt = <6600>;
active-semi,precondition-timeout = <40>;
active-semi,total-timeout = <3>;
- status = "okay";
};
};
diff --git a/Documentation/devicetree/bindings/mfd/arizona.txt b/Documentation/devicetree/bindings/mfd/arizona.txt
index 8f2e2822238d..b37bdde5cfda 100644
--- a/Documentation/devicetree/bindings/mfd/arizona.txt
+++ b/Documentation/devicetree/bindings/mfd/arizona.txt
@@ -30,7 +30,8 @@ Required properties:
- gpio-controller : Indicates this device is a GPIO controller.
- #gpio-cells : Must be 2. The first cell is the pin number and the
- second cell is used to specify optional parameters (currently unused).
+ second cell is used to specify optional parameters, see ../gpio/gpio.txt
+ for details.
- AVDD-supply, DBVDD1-supply, CPVDD-supply : Power supplies for the device,
as covered in Documentation/devicetree/bindings/regulator/regulator.txt
diff --git a/Documentation/devicetree/bindings/mfd/atmel-hlcdc.txt b/Documentation/devicetree/bindings/mfd/atmel-hlcdc.txt
index eec40be7f79a..3f643ef121ff 100644
--- a/Documentation/devicetree/bindings/mfd/atmel-hlcdc.txt
+++ b/Documentation/devicetree/bindings/mfd/atmel-hlcdc.txt
@@ -25,7 +25,6 @@ Example:
clocks = <&lcdc_clk>, <&lcdck>, <&clk32k>;
clock-names = "periph_clk","sys_clk", "slow_clk";
interrupts = <36 IRQ_TYPE_LEVEL_HIGH 0>;
- status = "disabled";
hlcdc-display-controller {
compatible = "atmel,hlcdc-display-controller";
diff --git a/Documentation/devicetree/bindings/mfd/atmel-smc.txt b/Documentation/devicetree/bindings/mfd/atmel-smc.txt
index 26eeed373934..1103ce2030fb 100644
--- a/Documentation/devicetree/bindings/mfd/atmel-smc.txt
+++ b/Documentation/devicetree/bindings/mfd/atmel-smc.txt
@@ -8,6 +8,7 @@ Required properties:
- compatible: Should be one of the following
"atmel,at91sam9260-smc", "syscon"
"atmel,sama5d3-smc", "syscon"
+ "atmel,sama5d2-smc", "syscon"
- reg: Contains offset/length value of the SMC memory
region.
diff --git a/Documentation/devicetree/bindings/mfd/axp20x.txt b/Documentation/devicetree/bindings/mfd/axp20x.txt
index aca09af66514..9455503b0299 100644
--- a/Documentation/devicetree/bindings/mfd/axp20x.txt
+++ b/Documentation/devicetree/bindings/mfd/axp20x.txt
@@ -7,7 +7,14 @@ axp209 (X-Powers)
axp221 (X-Powers)
axp223 (X-Powers)
axp803 (X-Powers)
+axp806 (X-Powers)
axp809 (X-Powers)
+axp813 (X-Powers)
+
+The AXP813 is 2 chips packaged into 1. The 2 chips do not share anything
+other than the packaging. Pins are routed separately. As such they should
+be treated as separate entities. The other half is an AC100 RTC/codec
+combo chip. Please see ./ac100.txt for its bindings.
Required properties:
- compatible: should be one of:
@@ -19,6 +26,7 @@ Required properties:
* "x-powers,axp803"
* "x-powers,axp806"
* "x-powers,axp809"
+ * "x-powers,axp813"
- reg: The I2C slave address or RSB hardware address for the AXP chip
- interrupt-parent: The parent interrupt controller
- interrupts: SoC NMI / GPIO interrupt connected to the PMIC's IRQ pin
@@ -28,12 +36,14 @@ Required properties:
Optional properties:
- x-powers,dcdc-freq: defines the work frequency of DC-DC in KHz
AXP152/20X: range: 750-1875, Default: 1.5 MHz
- AXP22X/80X: range: 1800-4050, Default: 3 MHz
+ AXP22X/8XX: range: 1800-4050, Default: 3 MHz
-- x-powers,drive-vbus-en: axp221 / axp223 only boolean, set this when the
- N_VBUSEN pin is used as an output pin to control an external
- regulator to drive the OTG VBus, rather then as an input pin
- which signals whether the board is driving OTG VBus or not.
+- x-powers,drive-vbus-en: boolean, set this when the N_VBUSEN pin is
+ used as an output pin to control an external
+ regulator to drive the OTG VBus, rather then
+ as an input pin which signals whether the
+ board is driving OTG VBus or not.
+ (axp221 / axp223 / axp813 only)
- x-powers,master-mode: Boolean (axp806 only). Set this when the PMIC is
wired for master mode. The default is slave mode.
@@ -171,6 +181,36 @@ LDO_IO1 : LDO : ips-supply : GPIO 1
RTC_LDO : LDO : ips-supply : always on
SW : On/Off Switch : swin-supply
+AXP813 regulators, type, and corresponding input supply names:
+
+Regulator Type Supply Name Notes
+--------- ---- ----------- -----
+DCDC1 : DC-DC buck : vin1-supply
+DCDC2 : DC-DC buck : vin2-supply : poly-phase capable
+DCDC3 : DC-DC buck : vin3-supply : poly-phase capable
+DCDC4 : DC-DC buck : vin4-supply
+DCDC5 : DC-DC buck : vin5-supply : poly-phase capable
+DCDC6 : DC-DC buck : vin6-supply : poly-phase capable
+DCDC7 : DC-DC buck : vin7-supply
+ALDO1 : LDO : aldoin-supply : shared supply
+ALDO2 : LDO : aldoin-supply : shared supply
+ALDO3 : LDO : aldoin-supply : shared supply
+DLDO1 : LDO : dldoin-supply : shared supply
+DLDO2 : LDO : dldoin-supply : shared supply
+DLDO3 : LDO : dldoin-supply : shared supply
+DLDO4 : LDO : dldoin-supply : shared supply
+ELDO1 : LDO : eldoin-supply : shared supply
+ELDO2 : LDO : eldoin-supply : shared supply
+ELDO3 : LDO : eldoin-supply : shared supply
+FLDO1 : LDO : fldoin-supply : shared supply
+FLDO2 : LDO : fldoin-supply : shared supply
+FLDO3 : LDO : fldoin-supply : shared supply
+LDO_IO0 : LDO : ips-supply : GPIO 0
+LDO_IO1 : LDO : ips-supply : GPIO 1
+RTC_LDO : LDO : ips-supply : always on
+SW : On/Off Switch : swin-supply
+DRIVEVBUS : Enable output : drivevbus-supply : external regulator
+
Example:
axp209: pmic@34 {
diff --git a/Documentation/devicetree/bindings/mfd/bd9571mwv.txt b/Documentation/devicetree/bindings/mfd/bd9571mwv.txt
new file mode 100644
index 000000000000..9ab216a851d5
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/bd9571mwv.txt
@@ -0,0 +1,49 @@
+* ROHM BD9571MWV Power Management Integrated Circuit (PMIC) bindings
+
+Required properties:
+ - compatible : Should be "rohm,bd9571mwv".
+ - reg : I2C slave address.
+ - interrupt-parent : Phandle to the parent interrupt controller.
+ - interrupts : The interrupt line the device is connected to.
+ - interrupt-controller : Marks the device node as an interrupt controller.
+ - #interrupt-cells : The number of cells to describe an IRQ, should be 2.
+ The first cell is the IRQ number.
+ The second cell is the flags, encoded as trigger
+ masks from ../interrupt-controller/interrupts.txt.
+ - gpio-controller : Marks the device node as a GPIO Controller.
+ - #gpio-cells : Should be two. The first cell is the pin number and
+ the second cell is used to specify flags.
+ See ../gpio/gpio.txt for more information.
+ - regulators: : List of child nodes that specify the regulator
+ initialization data. Child nodes must be named
+ after their hardware counterparts:
+ - vd09
+ - vd18
+ - vd25
+ - vd33
+ - dvfs
+ Each child node is defined using the standard
+ binding for regulators.
+
+Example:
+
+ pmic: pmic@30 {
+ compatible = "rohm,bd9571mwv";
+ reg = <0x30>;
+ interrupt-parent = <&gpio2>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ regulators {
+ dvfs: dvfs {
+ regulator-name = "dvfs";
+ regulator-min-microvolt = <750000>;
+ regulator-max-microvolt = <1030000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mfd/da9052-i2c.txt b/Documentation/devicetree/bindings/mfd/da9052-i2c.txt
index 9554292dc6cb..07c69c0c6624 100644
--- a/Documentation/devicetree/bindings/mfd/da9052-i2c.txt
+++ b/Documentation/devicetree/bindings/mfd/da9052-i2c.txt
@@ -4,6 +4,14 @@ Required properties:
- compatible : Should be "dlg,da9052", "dlg,da9053-aa",
"dlg,da9053-ab", or "dlg,da9053-bb"
+Optional properties:
+- dlg,tsi-as-adc : Boolean, if set the X+, X-, Y+, Y- touchscreen
+ input lines are used as general purpose analogue
+ input.
+- tsiref-supply: Phandle to the regulator, which provides the reference
+ voltage for the TSIREF pin. Must be provided when the
+ touchscreen pins are used for ADC purposes.
+
Sub-nodes:
- regulators : Contain the regulator nodes. The DA9052/53 regulators are
bound using their names as listed below:
@@ -29,7 +37,6 @@ Sub-nodes:
Examples:
i2c@63fc8000 { /* I2C1 */
- status = "okay";
pmic: dialog@48 {
compatible = "dlg,da9053-aa";
diff --git a/Documentation/devicetree/bindings/mfd/hi6421.txt b/Documentation/devicetree/bindings/mfd/hi6421.txt
index 0d5a4466a494..22da96d344a7 100644
--- a/Documentation/devicetree/bindings/mfd/hi6421.txt
+++ b/Documentation/devicetree/bindings/mfd/hi6421.txt
@@ -1,7 +1,9 @@
* HI6421 Multi-Functional Device (MFD), by HiSilicon Ltd.
Required parent device properties:
-- compatible : contains "hisilicon,hi6421-pmic";
+- compatible : One of the following chip-specific strings:
+ "hisilicon,hi6421-pmic";
+ "hisilicon,hi6421v530-pmic";
- reg : register range space of hi6421;
Supported Hi6421 sub-devices include:
diff --git a/Documentation/devicetree/bindings/mfd/lp87565.txt b/Documentation/devicetree/bindings/mfd/lp87565.txt
new file mode 100644
index 000000000000..a48df7c08ab0
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/lp87565.txt
@@ -0,0 +1,43 @@
+TI LP87565 PMIC MFD driver
+
+Required properties:
+ - compatible: "ti,lp87565", "ti,lp87565-q1"
+ - reg: I2C slave address.
+ - gpio-controller: Marks the device node as a GPIO Controller.
+ - #gpio-cells: Should be two. The first cell is the pin number and
+ the second cell is used to specify flags.
+ See ../gpio/gpio.txt for more information.
+ - xxx-in-supply: Phandle to parent supply node of each regulator
+ populated under regulators node. xxx should match
+ the supply_name populated in driver.
+Example:
+
+lp87565_pmic: pmic@60 {
+ compatible = "ti,lp87565-q1";
+ reg = <0x60>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ buck10-in-supply = <&vsys_3v3>;
+ buck23-in-supply = <&vsys_3v3>;
+
+ regulators: regulators {
+ buck10_reg: buck10 {
+ /* VDD_MPU */
+ regulator-name = "buck10";
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <1250000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ buck23_reg: buck23 {
+ /* VDD_GPU */
+ regulator-name = "buck23";
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <1250000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/mfd/mc13xxx.txt b/Documentation/devicetree/bindings/mfd/mc13xxx.txt
index 8aba48821a85..39ba4146769d 100644
--- a/Documentation/devicetree/bindings/mfd/mc13xxx.txt
+++ b/Documentation/devicetree/bindings/mfd/mc13xxx.txt
@@ -116,7 +116,6 @@ ecspi@70010000 { /* ECSPI1 */
fsl,spi-num-chipselects = <2>;
cs-gpios = <&gpio4 24 0>, /* GPIO4_24 */
<&gpio4 25 0>; /* GPIO4_25 */
- status = "okay";
pmic: mc13892@0 {
#address-cells = <1>;
diff --git a/Documentation/devicetree/bindings/mfd/mxs-lradc.txt b/Documentation/devicetree/bindings/mfd/mxs-lradc.txt
index 555fb117d4fa..755cbef0647d 100644
--- a/Documentation/devicetree/bindings/mfd/mxs-lradc.txt
+++ b/Documentation/devicetree/bindings/mfd/mxs-lradc.txt
@@ -26,7 +26,6 @@ Example for i.MX23 SoC:
compatible = "fsl,imx23-lradc";
reg = <0x80050000 0x2000>;
interrupts = <36 37 38 39 40 41 42 43 44>;
- status = "okay";
fsl,lradc-touchscreen-wires = <4>;
fsl,ave-ctrl = <4>;
fsl,ave-delay = <2>;
@@ -39,7 +38,6 @@ Example for i.MX28 SoC:
compatible = "fsl,imx28-lradc";
reg = <0x80050000 0x2000>;
interrupts = <10 14 15 16 17 18 19 20 21 22 23 24 25>;
- status = "okay";
fsl,lradc-touchscreen-wires = <5>;
fsl,ave-ctrl = <4>;
fsl,ave-delay = <2>;
diff --git a/Documentation/devicetree/bindings/mfd/retu.txt b/Documentation/devicetree/bindings/mfd/retu.txt
new file mode 100644
index 000000000000..876242394a16
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/retu.txt
@@ -0,0 +1,25 @@
+* Device tree bindings for Nokia Retu and Tahvo multi-function device
+
+Retu and Tahvo are a multi-function devices found on Nokia Internet
+Tablets (770, N800 and N810). The Retu chip provides watchdog timer
+and power button control functionalities while Tahvo chip provides
+USB transceiver functionality.
+
+Required properties:
+- compatible: "nokia,retu" or "nokia,tahvo"
+- reg: Specifies the CBUS slave address of the ASIC chip
+- interrupts: The interrupt line the device is connected to
+- interrupt-parent: The parent interrupt controller
+
+Example:
+
+cbus0 {
+ compatible = "i2c-cbus-gpio";
+ ...
+ retu: retu@1 {
+ compatible = "nokia,retu";
+ interrupt-parent = <&gpio4>;
+ interrupts = <12 IRQ_TYPE_EDGE_RISING>;
+ reg = <0x1>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/mfd/rk808.txt b/Documentation/devicetree/bindings/mfd/rk808.txt
index 9636ae8d8d41..91b65227afeb 100644
--- a/Documentation/devicetree/bindings/mfd/rk808.txt
+++ b/Documentation/devicetree/bindings/mfd/rk808.txt
@@ -1,11 +1,14 @@
RK8XX Power Management Integrated Circuit
The rk8xx family current members:
+rk805
rk808
rk818
Required properties:
-- compatible: "rockchip,rk808", "rockchip,rk818"
+- compatible: "rockchip,rk805"
+- compatible: "rockchip,rk808"
+- compatible: "rockchip,rk818"
- reg: I2C slave address
- interrupt-parent: The parent interrupt controller.
- interrupts: the interrupt outputs of the controller.
@@ -18,6 +21,14 @@ Optional properties:
- rockchip,system-power-controller: Telling whether or not this pmic is controlling
the system power.
+Optional RK805 properties:
+- vcc1-supply: The input supply for DCDC_REG1
+- vcc2-supply: The input supply for DCDC_REG2
+- vcc3-supply: The input supply for DCDC_REG3
+- vcc4-supply: The input supply for DCDC_REG4
+- vcc5-supply: The input supply for LDO_REG1 and LDO_REG2
+- vcc6-supply: The input supply for LDO_REG3
+
Optional RK808 properties:
- vcc1-supply: The input supply for DCDC_REG1
- vcc2-supply: The input supply for DCDC_REG2
@@ -56,6 +67,15 @@ by a child node of the 'regulators' node.
/* standard regulator bindings here */
};
+Following regulators of the RK805 PMIC regulators are supported. Note that
+the 'n' in regulator name, as in DCDC_REGn or LDOn, represents the DCDC or LDO
+number as described in RK805 datasheet.
+
+ - DCDC_REGn
+ - valid values for n are 1 to 4.
+ - LDO_REGn
+ - valid values for n are 1 to 3
+
Following regulators of the RK808 PMIC block are supported. Note that
the 'n' in regulator name, as in DCDC_REGn or LDOn, represents the DCDC or LDO
number as described in RK808 datasheet.
diff --git a/Documentation/devicetree/bindings/mfd/samsung,exynos5433-lpass.txt b/Documentation/devicetree/bindings/mfd/samsung,exynos5433-lpass.txt
index df664018c148..d759da606f75 100644
--- a/Documentation/devicetree/bindings/mfd/samsung,exynos5433-lpass.txt
+++ b/Documentation/devicetree/bindings/mfd/samsung,exynos5433-lpass.txt
@@ -57,7 +57,6 @@ audio-subsystem {
clock-names = "iis", "i2s_opclk0", "i2s_opclk1";
pinctrl-names = "default";
pinctrl-0 = <&i2s0_bus>;
- status = "disabled";
};
serial_3: serial@11460000 {
@@ -69,6 +68,5 @@ audio-subsystem {
clock-names = "uart", "clk_uart_baud0";
pinctrl-names = "default";
pinctrl-0 = <&uart_aud_bus>;
- status = "disabled";
};
};
diff --git a/Documentation/devicetree/bindings/mfd/stm32-lptimer.txt b/Documentation/devicetree/bindings/mfd/stm32-lptimer.txt
new file mode 100644
index 000000000000..2a9ff29db9c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/stm32-lptimer.txt
@@ -0,0 +1,48 @@
+STMicroelectronics STM32 Low-Power Timer
+
+The STM32 Low-Power Timer (LPTIM) is a 16-bit timer that provides several
+functions:
+- PWM output (with programmable prescaler, configurable polarity)
+- Quadrature encoder, counter
+- Trigger source for STM32 ADC/DAC (LPTIM_OUT)
+
+Required properties:
+- compatible: Must be "st,stm32-lptimer".
+- reg: Offset and length of the device's register set.
+- clocks: Phandle to the clock used by the LP Timer module.
+- clock-names: Must be "mux".
+- #address-cells: Should be '<1>'.
+- #size-cells: Should be '<0>'.
+
+Optional subnodes:
+- pwm: See ../pwm/pwm-stm32-lp.txt
+- counter: See ../iio/timer/stm32-lptimer-cnt.txt
+- trigger: See ../iio/timer/stm32-lptimer-trigger.txt
+
+Example:
+
+ timer@40002400 {
+ compatible = "st,stm32-lptimer";
+ reg = <0x40002400 0x400>;
+ clocks = <&timer_clk>;
+ clock-names = "mux";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pwm {
+ compatible = "st,stm32-pwm-lp";
+ pinctrl-names = "default";
+ pinctrl-0 = <&lppwm1_pins>;
+ };
+
+ trigger@0 {
+ compatible = "st,stm32-lptimer-trigger";
+ reg = <0>;
+ };
+
+ counter {
+ compatible = "st,stm32-lptimer-counter";
+ pinctrl-names = "default";
+ pinctrl-0 = <&lptim1_in_pins>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mfd/tps6105x.txt b/Documentation/devicetree/bindings/mfd/tps6105x.txt
new file mode 100644
index 000000000000..93602c7a19c8
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/tps6105x.txt
@@ -0,0 +1,17 @@
+* Device tree bindings for TI TPS61050/61052 Boost Converters
+
+The TP61050/TPS61052 is a high-power "white LED driver". The
+device provides LED, GPIO and regulator functionalities.
+
+Required properties:
+- compatible: "ti,tps61050" or "ti,tps61052"
+- reg: Specifies the I2C slave address
+
+Example:
+
+i2c0 {
+ tps61052@33 {
+ compatible = "ti,tps61052";
+ reg = <0x33>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/mfd/tps65910.txt b/Documentation/devicetree/bindings/mfd/tps65910.txt
index 38833e63a59f..8af1202b381d 100644
--- a/Documentation/devicetree/bindings/mfd/tps65910.txt
+++ b/Documentation/devicetree/bindings/mfd/tps65910.txt
@@ -61,6 +61,10 @@ Optional properties:
There should be 9 entries here, one for each gpio.
- ti,system-power-controller: Telling whether or not this pmic is controlling
the system power.
+- ti,sleep-enable: Enable SLEEP state.
+- ti,sleep-keep-therm: Keep thermal monitoring on in sleep state.
+- ti,sleep-keep-ck32k: Keep the 32KHz clock output on in sleep state.
+- ti,sleep-keep-hsclk: Keep high speed internal clock on in sleep state.
Regulator Optional properties:
- ti,regulator-ext-sleep-control: enable external sleep
diff --git a/Documentation/devicetree/bindings/mfd/wm831x.txt b/Documentation/devicetree/bindings/mfd/wm831x.txt
index 9f8b7430673c..505709403d3f 100644
--- a/Documentation/devicetree/bindings/mfd/wm831x.txt
+++ b/Documentation/devicetree/bindings/mfd/wm831x.txt
@@ -31,6 +31,7 @@ Required properties:
../interrupt-controller/interrupts.txt
Optional sub-nodes:
+ - phys : Contains a phandle to the USB PHY.
- regulators : Contains sub-nodes for each of the regulators supplied by
the device. The regulators are bound using their names listed below:
diff --git a/Documentation/devicetree/bindings/mfd/zii,rave-sp.txt b/Documentation/devicetree/bindings/mfd/zii,rave-sp.txt
new file mode 100644
index 000000000000..088eff9ddb78
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/zii,rave-sp.txt
@@ -0,0 +1,39 @@
+Zodiac Inflight Innovations RAVE Supervisory Processor
+
+RAVE Supervisory Processor communicates with SoC over UART. It is
+expected that its Device Tree node is specified as a child of a node
+corresponding to UART controller used for communication.
+
+Required parent device properties:
+
+ - compatible: Should be one of:
+ - "zii,rave-sp-niu"
+ - "zii,rave-sp-mezz"
+ - "zii,rave-sp-esb"
+ - "zii,rave-sp-rdu1"
+ - "zii,rave-sp-rdu2"
+
+ - current-speed: Should be set to baud rate SP device is using
+
+RAVE SP consists of the following sub-devices:
+
+Device Description
+------ -----------
+rave-sp-wdt : Watchdog
+rave-sp-nvmem : Interface to onborad EEPROM
+rave-sp-backlight : Display backlight
+rave-sp-hwmon : Interface to onboard hardware sensors
+rave-sp-leds : Interface to onboard LEDs
+rave-sp-input : Interface to onboard power button
+
+Example of usage:
+
+ rdu {
+ compatible = "zii,rave-sp-rdu2";
+ current-speed = <1000000>;
+
+ watchdog {
+ compatible = "zii,rave-sp-watchdog";
+ };
+ };
+
diff --git a/Documentation/devicetree/bindings/mips/lantiq/fpi-bus.txt b/Documentation/devicetree/bindings/mips/lantiq/fpi-bus.txt
new file mode 100644
index 000000000000..0a2df4338332
--- /dev/null
+++ b/Documentation/devicetree/bindings/mips/lantiq/fpi-bus.txt
@@ -0,0 +1,31 @@
+Lantiq XWAY SoC FPI BUS binding
+============================
+
+
+-------------------------------------------------------------------------------
+Required properties:
+- compatible : Should be one of
+ "lantiq,xrx200-fpi"
+- reg : The address and length of the XBAR
+ configuration register.
+ Address and length of the FPI bus itself.
+- lantiq,rcu : A phandle to the RCU syscon
+- lantiq,offset-endianness : Offset of the endianness configuration
+ register
+
+-------------------------------------------------------------------------------
+Example for the FPI on the xrx200 SoCs:
+ fpi@10000000 {
+ compatible = "lantiq,xrx200-fpi";
+ ranges = <0x0 0x10000000 0xf000000>;
+ reg = <0x1f400000 0x1000>,
+ <0x10000000 0xf000000>;
+ lantiq,rcu = <&rcu0>;
+ lantiq,offset-endianness = <0x4c>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ gptu@e100a00 {
+ ......
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mips/lantiq/rcu-gphy.txt b/Documentation/devicetree/bindings/mips/lantiq/rcu-gphy.txt
new file mode 100644
index 000000000000..a0c19bd1ce66
--- /dev/null
+++ b/Documentation/devicetree/bindings/mips/lantiq/rcu-gphy.txt
@@ -0,0 +1,36 @@
+Lantiq XWAY SoC GPHY binding
+============================
+
+This binding describes a software-defined ethernet PHY, provided by the RCU
+module on newer Lantiq XWAY SoCs (xRX200 and newer).
+
+-------------------------------------------------------------------------------
+Required properties:
+- compatible : Should be one of
+ "lantiq,xrx200a1x-gphy"
+ "lantiq,xrx200a2x-gphy"
+ "lantiq,xrx300-gphy"
+ "lantiq,xrx330-gphy"
+- reg : Addrress of the GPHY FW load address register
+- resets : Must reference the RCU GPHY reset bit
+- reset-names : One entry, value must be "gphy" or optional "gphy2"
+- clocks : A reference to the (PMU) GPHY clock gate
+
+Optional properties:
+- lantiq,gphy-mode : GPHY_MODE_GE (default) or GPHY_MODE_FE as defined in
+ <dt-bindings/mips/lantiq_xway_gphy.h>
+
+
+-------------------------------------------------------------------------------
+Example for the GPHys on the xRX200 SoCs:
+
+#include <dt-bindings/mips/lantiq_rcu_gphy.h>
+ gphy0: gphy@20 {
+ compatible = "lantiq,xrx200a2x-gphy";
+ reg = <0x20 0x4>;
+
+ resets = <&reset0 31 30>, <&reset1 7 7>;
+ reset-names = "gphy", "gphy2";
+ clocks = <&pmu0 XRX200_PMU_GATE_GPHY>;
+ lantiq,gphy-mode = <GPHY_MODE_GE>;
+ };
diff --git a/Documentation/devicetree/bindings/mips/lantiq/rcu.txt b/Documentation/devicetree/bindings/mips/lantiq/rcu.txt
new file mode 100644
index 000000000000..a086f1e1cdd7
--- /dev/null
+++ b/Documentation/devicetree/bindings/mips/lantiq/rcu.txt
@@ -0,0 +1,89 @@
+Lantiq XWAY SoC RCU binding
+===========================
+
+This binding describes the RCU (reset controller unit) multifunction device,
+where each sub-device has it's own set of registers.
+
+The RCU register range is used for multiple purposes. Mostly one device
+uses one or multiple register exclusively, but for some registers some
+bits are for one driver and some other bits are for a different driver.
+With this patch all accesses to the RCU registers will go through
+syscon.
+
+
+-------------------------------------------------------------------------------
+Required properties:
+- compatible : The first and second values must be:
+ "lantiq,xrx200-rcu", "simple-mfd", "syscon"
+- reg : The address and length of the system control registers
+
+
+-------------------------------------------------------------------------------
+Example of the RCU bindings on a xRX200 SoC:
+ rcu0: rcu@203000 {
+ compatible = "lantiq,xrx200-rcu", "simple-mfd", "syscon";
+ reg = <0x203000 0x100>;
+ ranges = <0x0 0x203000 0x100>;
+ big-endian;
+
+ gphy0: gphy@20 {
+ compatible = "lantiq,xrx200a2x-gphy";
+ reg = <0x20 0x4>;
+
+ resets = <&reset0 31 30>, <&reset1 7 7>;
+ reset-names = "gphy", "gphy2";
+ lantiq,gphy-mode = <GPHY_MODE_GE>;
+ };
+
+ gphy1: gphy@68 {
+ compatible = "lantiq,xrx200a2x-gphy";
+ reg = <0x68 0x4>;
+
+ resets = <&reset0 29 28>, <&reset1 6 6>;
+ reset-names = "gphy", "gphy2";
+ lantiq,gphy-mode = <GPHY_MODE_GE>;
+ };
+
+ reset0: reset-controller@10 {
+ compatible = "lantiq,xrx200-reset";
+ reg = <0x10 4>, <0x14 4>;
+
+ #reset-cells = <2>;
+ };
+
+ reset1: reset-controller@48 {
+ compatible = "lantiq,xrx200-reset";
+ reg = <0x48 4>, <0x24 4>;
+
+ #reset-cells = <2>;
+ };
+
+ usb_phy0: usb2-phy@18 {
+ compatible = "lantiq,xrx200-usb2-phy";
+ reg = <0x18 4>, <0x38 4>;
+ status = "disabled";
+
+ resets = <&reset1 4 4>, <&reset0 4 4>;
+ reset-names = "phy", "ctrl";
+ #phy-cells = <0>;
+ };
+
+ usb_phy1: usb2-phy@34 {
+ compatible = "lantiq,xrx200-usb2-phy";
+ reg = <0x34 4>, <0x3C 4>;
+ status = "disabled";
+
+ resets = <&reset1 5 4>, <&reset0 4 4>;
+ reset-names = "phy", "ctrl";
+ #phy-cells = <0>;
+ };
+
+ reboot@10 {
+ compatible = "syscon-reboot";
+ reg = <0x10 4>;
+
+ regmap = <&rcu0>;
+ offset = <0x10>;
+ mask = <0x40000000>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mips/ni.txt b/Documentation/devicetree/bindings/mips/ni.txt
new file mode 100644
index 000000000000..722bf2d62da9
--- /dev/null
+++ b/Documentation/devicetree/bindings/mips/ni.txt
@@ -0,0 +1,7 @@
+National Instruments MIPS platforms
+
+required root node properties:
+ - compatible: must be "ni,169445"
+
+CPU Nodes
+ - compatible: must be "mti,mips14KEc"
diff --git a/Documentation/devicetree/bindings/mips/ralink.txt b/Documentation/devicetree/bindings/mips/ralink.txt
index b35a8d04f8b6..a16e8d7fe56c 100644
--- a/Documentation/devicetree/bindings/mips/ralink.txt
+++ b/Documentation/devicetree/bindings/mips/ralink.txt
@@ -15,3 +15,4 @@ value must be one of the following values:
ralink,rt5350-soc
ralink,mt7620a-soc
ralink,mt7620n-soc
+ ralink,mt7628a-soc
diff --git a/Documentation/devicetree/bindings/misc/allwinner,syscon.txt b/Documentation/devicetree/bindings/misc/allwinner,syscon.txt
new file mode 100644
index 000000000000..31494a24fe69
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/allwinner,syscon.txt
@@ -0,0 +1,20 @@
+* Allwinner sun8i system controller
+
+This file describes the bindings for the system controller present in
+Allwinner SoC H3, A83T and A64.
+The principal function of this syscon is to control EMAC PHY choice and
+config.
+
+Required properties for the system controller:
+- reg: address and length of the register for the device.
+- compatible: should be "syscon" and one of the following string:
+ "allwinner,sun8i-h3-system-controller"
+ "allwinner,sun8i-v3s-system-controller"
+ "allwinner,sun50i-a64-system-controller"
+ "allwinner,sun8i-a83t-system-controller"
+
+Example:
+syscon: syscon@1c00000 {
+ compatible = "allwinner,sun8i-h3-system-controller", "syscon";
+ reg = <0x01c00000 0x1000>;
+};
diff --git a/Documentation/devicetree/bindings/misc/atmel-ssc.txt b/Documentation/devicetree/bindings/misc/atmel-ssc.txt
index f8629bb73945..f9fb412642fe 100644
--- a/Documentation/devicetree/bindings/misc/atmel-ssc.txt
+++ b/Documentation/devicetree/bindings/misc/atmel-ssc.txt
@@ -47,5 +47,4 @@ ssc0: ssc@f0010000 {
dma-names = "tx", "rx";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ssc0_tx &pinctrl_ssc0_rx>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt b/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
index 49df630bd44f..60481bfc3d31 100644
--- a/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
+++ b/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
@@ -74,5 +74,4 @@ Example:
phys = <&emmc_phy>;
phy-names = "phy_arasan";
#clock-cells = <0>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/mmc/davinci_mmc.txt b/Documentation/devicetree/bindings/mmc/davinci_mmc.txt
index e5a0140b2381..516fb0143d4c 100644
--- a/Documentation/devicetree/bindings/mmc/davinci_mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/davinci_mmc.txt
@@ -24,7 +24,6 @@ mmc0: mmc@1c40000 {
compatible = "ti,da830-mmc",
reg = <0x40000 0x1000>;
interrupts = <16>;
- status = "okay";
bus-width = <4>;
max-frequency = <50000000>;
dmas = <&edma 16
diff --git a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
index aad98442788b..a58c173b7ab9 100644
--- a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
@@ -78,7 +78,6 @@ Example:
};
dwmmc0@12200000 {
- num-slots = <1>;
cap-mmc-highspeed;
cap-sd-highspeed;
broken-cd;
diff --git a/Documentation/devicetree/bindings/mmc/fsl-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-esdhc.txt
index dedfb02c744a..a2cf5e1c87d8 100644
--- a/Documentation/devicetree/bindings/mmc/fsl-esdhc.txt
+++ b/Documentation/devicetree/bindings/mmc/fsl-esdhc.txt
@@ -7,6 +7,20 @@ This file documents differences between the core properties described
by mmc.txt and the properties used by the sdhci-esdhc driver.
Required properties:
+ - compatible : should be "fsl,esdhc", or "fsl,<chip>-esdhc".
+ Possible compatibles for PowerPC:
+ "fsl,mpc8536-esdhc"
+ "fsl,mpc8378-esdhc"
+ "fsl,p2020-esdhc"
+ "fsl,p4080-esdhc"
+ "fsl,t1040-esdhc"
+ "fsl,t4240-esdhc"
+ Possible compatibles for ARM:
+ "fsl,ls1012a-esdhc"
+ "fsl,ls1088a-esdhc"
+ "fsl,ls1043a-esdhc"
+ "fsl,ls1046a-esdhc"
+ "fsl,ls2080a-esdhc"
- interrupt-parent : interrupt source phandle.
- clock-frequency : specifies eSDHC base clock frequency.
diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-mmc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-mmc.txt
index db442355cd24..184ccffe2739 100644
--- a/Documentation/devicetree/bindings/mmc/fsl-imx-mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/fsl-imx-mmc.txt
@@ -20,5 +20,4 @@ sdhci1: sdhci@10014000 {
dma-names = "rx-tx";
bus-width = <4>;
cd-gpios = <&gpio3 29>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/mmc/img-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/img-dw-mshc.txt
index 85de99fcaa2f..c54e577eea07 100644
--- a/Documentation/devicetree/bindings/mmc/img-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/img-dw-mshc.txt
@@ -24,6 +24,5 @@ Example:
fifo-depth = <0x20>;
bus-width = <4>;
- num-slots = <1>;
disable-wp;
};
diff --git a/Documentation/devicetree/bindings/mmc/k3-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/k3-dw-mshc.txt
index df370585cbcc..07242d141773 100644
--- a/Documentation/devicetree/bindings/mmc/k3-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/k3-dw-mshc.txt
@@ -12,6 +12,7 @@ extensions to the Synopsys Designware Mobile Storage Host Controller.
Required Properties:
* compatible: should be one of the following.
+ - "hisilicon,hi3660-dw-mshc": for controllers with hi3660 specific extensions.
- "hisilicon,hi4511-dw-mshc": for controllers with hi4511 specific extensions.
- "hisilicon,hi6220-dw-mshc": for controllers with hi6220 specific extensions.
@@ -35,7 +36,6 @@ Example:
/* Board portion */
dwmmc0@fcd03000 {
- num-slots = <1>;
vmmc-supply = <&ldo12>;
fifo-depth = <0x100>;
pinctrl-names = "default";
@@ -51,7 +51,6 @@ Example:
dwmmc_1: dwmmc1@f723e000 {
compatible = "hisilicon,hi6220-dw-mshc";
- num-slots = <0x1>;
bus-width = <0x4>;
disable-wp;
cap-sd-highspeed;
diff --git a/Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.txt b/Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.txt
index b878a1e305af..ed1456f5c94d 100644
--- a/Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.txt
+++ b/Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.txt
@@ -16,11 +16,13 @@ Required Properties:
- clocks:
Array of clocks required for SDHC.
- Require at least input clock for Xenon IP core.
+ Require at least input clock for Xenon IP core. For Armada AP806 and
+ CP110, the AXI clock is also mandatory.
- clock-names:
Array of names corresponding to clocks property.
The input clock for Xenon IP core should be named as "core".
+ The input clock for the AXI bus must be named as "axi".
- reg:
* For "marvell,armada-3700-sdhci", two register areas.
@@ -106,8 +108,8 @@ Example:
compatible = "marvell,armada-ap806-sdhci";
reg = <0xaa0000 0x1000>;
interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>
- clocks = <&emmc_clk>;
- clock-names = "core";
+ clocks = <&emmc_clk>,<&axi_clk>;
+ clock-names = "core", "axi";
bus-width = <4>;
marvell,xenon-phy-slow-mode;
marvell,xenon-tun-count = <11>;
@@ -126,8 +128,8 @@ Example:
interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>
vqmmc-supply = <&sd_vqmmc_regulator>;
vmmc-supply = <&sd_vmmc_regulator>;
- clocks = <&sdclk>;
- clock-names = "core";
+ clocks = <&sdclk>, <&axi_clk>;
+ clock-names = "core", "axi";
bus-width = <4>;
marvell,xenon-tun-count = <9>;
};
diff --git a/Documentation/devicetree/bindings/mmc/mmc-card.txt b/Documentation/devicetree/bindings/mmc/mmc-card.txt
index a70fcd65b9ea..8d2d71758907 100644
--- a/Documentation/devicetree/bindings/mmc/mmc-card.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc-card.txt
@@ -21,7 +21,6 @@ Example:
vmmc-supply = <&reg_vcc3v3>;
bus-width = <8>;
non-removable;
- status = "okay";
mmccard: mmccard@0 {
reg = <0>;
diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt
index c7f4a0ec48ed..b32ade645ad9 100644
--- a/Documentation/devicetree/bindings/mmc/mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc.txt
@@ -153,7 +153,6 @@ mmc3: mmc@01c12000 {
bus-width = <4>;
non-removable;
mmc-pwrseq = <&sdhci0_pwrseq>
- status = "okay";
brcmf: bcrmf@1 {
reg = <1>;
diff --git a/Documentation/devicetree/bindings/mmc/orion-sdio.txt b/Documentation/devicetree/bindings/mmc/orion-sdio.txt
index 84f0ebd67a13..10f0818a34c5 100644
--- a/Documentation/devicetree/bindings/mmc/orion-sdio.txt
+++ b/Documentation/devicetree/bindings/mmc/orion-sdio.txt
@@ -13,5 +13,4 @@ Example:
reg = <0xd00d4000 0x200>;
interrupts = <54>;
clocks = <&gateclk 17>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/mmc/renesas,mmcif.txt b/Documentation/devicetree/bindings/mmc/renesas,mmcif.txt
index c32dc5a9dbe6..5ff1e12c655a 100644
--- a/Documentation/devicetree/bindings/mmc/renesas,mmcif.txt
+++ b/Documentation/devicetree/bindings/mmc/renesas,mmcif.txt
@@ -11,6 +11,8 @@ Required properties:
- "renesas,mmcif-r7s72100" for the MMCIF found in r7s72100 SoCs
- "renesas,mmcif-r8a73a4" for the MMCIF found in r8a73a4 SoCs
- "renesas,mmcif-r8a7740" for the MMCIF found in r8a7740 SoCs
+ - "renesas,mmcif-r8a7743" for the MMCIF found in r8a7743 SoCs
+ - "renesas,mmcif-r8a7745" for the MMCIF found in r8a7745 SoCs
- "renesas,mmcif-r8a7778" for the MMCIF found in r8a7778 SoCs
- "renesas,mmcif-r8a7790" for the MMCIF found in r8a7790 SoCs
- "renesas,mmcif-r8a7791" for the MMCIF found in r8a7791 SoCs
@@ -21,7 +23,7 @@ Required properties:
- interrupts: Some SoCs have only 1 shared interrupt, while others have either
2 or 3 individual interrupts (error, int, card detect). Below is the number
of interrupts for each SoC:
- 1: r8a73a4, r8a7778, r8a7790, r8a7791, r8a7793, r8a7794
+ 1: r8a73a4, r8a7743, r8a7745, r8a7778, r8a7790, r8a7791, r8a7793, r8a7794
2: r8a7740, sh73a0
3: r7s72100
diff --git a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt
index 520d61dad6dd..c6558785e61b 100644
--- a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt
@@ -15,6 +15,8 @@ Required Properties:
- "rockchip,rk3288-dw-mshc": for Rockchip RK3288
- "rockchip,rv1108-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RV1108
- "rockchip,rk3036-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3036
+ - "rockchip,rk3228-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK322x
+ - "rockchip,rk3328-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3328
- "rockchip,rk3368-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3368
- "rockchip,rk3399-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3399
@@ -31,6 +33,10 @@ Optional Properties:
probing, low speeds or in case where all phases work at tuning time.
If not specified 0 deg will be used.
+* rockchip,desired-num-phases: The desired number of times that the host
+ execute tuning when needed. If not specified, the host will do tuning
+ for 360 times, namely tuning for each degree.
+
Example:
rkdwmmc0@12200000 {
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-st.txt b/Documentation/devicetree/bindings/mmc/sdhci-st.txt
index 230fd696eb92..e35645598315 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-st.txt
+++ b/Documentation/devicetree/bindings/mmc/sdhci-st.txt
@@ -63,7 +63,6 @@ Example:
mmc0: sdhci@fe81e000 {
compatible = "st,sdhci";
- status = "disabled";
reg = <0xfe81e000 0x1000>;
interrupts = <GIC_SPI 127 IRQ_TYPE_NONE>;
interrupt-names = "mmcirq";
@@ -77,7 +76,6 @@ mmc0: sdhci@fe81e000 {
mmc1: sdhci@09080000 {
compatible = "st,sdhci-stih407", "st,sdhci";
- status = "disabled";
reg = <0x09080000 0x7ff>;
reg-names = "mmc";
interrupts = <GIC_SPI 90 IRQ_TYPE_NONE>;
@@ -94,7 +92,6 @@ mmc1: sdhci@09080000 {
mmc0: sdhci@09060000 {
compatible = "st,sdhci-stih407", "st,sdhci";
- status = "disabled";
reg = <0x09060000 0x7ff>, <0x9061008 0x20>;
reg-names = "mmc", "top-mmc-delay";
interrupts = <GIC_SPI 92 IRQ_TYPE_NONE>;
diff --git a/Documentation/devicetree/bindings/mmc/sunxi-mmc.txt b/Documentation/devicetree/bindings/mmc/sunxi-mmc.txt
index 7d53a799f140..63b57e2a10fb 100644
--- a/Documentation/devicetree/bindings/mmc/sunxi-mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/sunxi-mmc.txt
@@ -12,6 +12,7 @@ Required properties:
* "allwinner,sun4i-a10-mmc"
* "allwinner,sun5i-a13-mmc"
* "allwinner,sun7i-a20-mmc"
+ * "allwinner,sun8i-a83t-emmc"
* "allwinner,sun9i-a80-mmc"
* "allwinner,sun50i-a64-emmc"
* "allwinner,sun50i-a64-mmc"
diff --git a/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt
index 9cb55ca57461..ef3e5f14067a 100644
--- a/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt
@@ -12,12 +12,12 @@ Required Properties:
* #address-cells: should be 1.
* #size-cells: should be 0.
-# Slots: The slot specific information are contained within child-nodes with
- each child-node representing a supported slot. There should be atleast one
- child node representing a card slot. The name of the child node representing
- the slot is recommended to be slot@n where n is the unique number of the slot
- connected to the controller. The following are optional properties which
- can be included in the slot child node.
+# Slots (DEPRECATED): The slot specific information are contained within
+ child-nodes with each child-node representing a supported slot. There should
+ be atleast one child node representing a card slot. The name of the child node
+ representing the slot is recommended to be slot@n where n is the unique number
+ of the slot connected to the controller. The following are optional properties
+ which can be included in the slot child node.
* reg: specifies the physical slot number. The valid values of this
property is 0 to (num-slots -1), where num-slots is the value
@@ -63,7 +63,7 @@ Optional properties:
clock(cclk_out). If it's not specified, max is 200MHZ and min is 400KHz by default.
(Use the "max-frequency" instead of "clock-freq-min-max".)
-* num-slots: specifies the number of slots supported by the controller.
+* num-slots (DEPRECATED): specifies the number of slots supported by the controller.
The number of physical slots actually used could be equal or less than the
value specified by num-slots. If this property is not specified, the value
of num-slot property is assumed to be 1.
@@ -124,7 +124,6 @@ board specific portions as listed below.
dwmmc0@12200000 {
clock-frequency = <400000000>;
clock-freq-min-max = <400000 200000000>;
- num-slots = <1>;
broken-cd;
fifo-depth = <0x80>;
card-detect-delay = <200>;
@@ -139,7 +138,6 @@ board specific portions as listed below.
dwmmc0@12200000 {
clock-frequency = <400000000>;
clock-freq-min-max = <400000 200000000>;
- num-slots = <1>;
broken-cd;
fifo-depth = <0x80>;
card-detect-delay = <200>;
diff --git a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
index 74166a0d460d..3a4ac401e6f9 100644
--- a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
+++ b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
@@ -1,33 +1,55 @@
-* TI Highspeed MMC host controller for OMAP
+* TI Highspeed MMC host controller for OMAP and 66AK2G family.
-The Highspeed MMC Host Controller on TI OMAP family
+The Highspeed MMC Host Controller on TI OMAP and 66AK2G family
provides an interface for MMC, SD, and SDIO types of memory cards.
This file documents differences between the core properties described
by mmc.txt and the properties used by the omap_hsmmc driver.
Required properties:
+--------------------
- compatible:
Should be "ti,omap2-hsmmc", for OMAP2 controllers
Should be "ti,omap3-hsmmc", for OMAP3 controllers
Should be "ti,omap3-pre-es3-hsmmc" for OMAP3 controllers pre ES3.0
Should be "ti,omap4-hsmmc", for OMAP4 controllers
Should be "ti,am33xx-hsmmc", for AM335x controllers
-- ti,hwmods: Must be "mmc<n>", n is controller instance starting 1
+ Should be "ti,k2g-hsmmc", "ti,omap4-hsmmc" for 66AK2G controllers.
+
+SoC specific required properties:
+---------------------------------
+The following are mandatory properties for OMAPs, AM33xx and AM43xx SoCs only:
+- ti,hwmods: Must be "mmc<n>", n is controller instance starting 1.
+
+The following are mandatory properties for 66AK2G SoCs only:
+- power-domains:Should contain a phandle to a PM domain provider node
+ and an args specifier containing the MMC device id
+ value. This property is as per the binding,
+ Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
+- clocks: Must contain an entry for each entry in clock-names. Should
+ be defined as per the he appropriate clock bindings consumer
+ usage in Documentation/devicetree/bindings/clock/ti,sci-clk.txt
+- clock-names: Shall be "fck" for the functional clock,
+ and "mmchsdb_fck" for the debounce clock.
+
Optional properties:
-ti,dual-volt: boolean, supports dual voltage cards
-<supply-name>-supply: phandle to the regulator device tree node
-"supply-name" examples are "vmmc", "vmmc_aux" etc
-ti,non-removable: non-removable slot (like eMMC)
-ti,needs-special-reset: Requires a special softreset sequence
-ti,needs-special-hs-handling: HSMMC IP needs special setting for handling High Speed
-dmas: List of DMA specifiers with the controller specific format
-as described in the generic DMA client binding. A tx and rx
-specifier is required.
-dma-names: List of DMA request names. These strings correspond
-1:1 with the DMA specifiers listed in dmas. The string naming is
-to be "rx" and "tx" for RX and TX DMA requests, respectively.
+--------------------
+- ti,dual-volt: boolean, supports dual voltage cards
+- <supply-name>-supply: phandle to the regulator device tree node
+ "supply-name" examples are "vmmc",
+ "vmmc_aux"(deprecated)/"vqmmc" etc
+- ti,non-removable: non-removable slot (like eMMC)
+- ti,needs-special-reset: Requires a special softreset sequence
+- ti,needs-special-hs-handling: HSMMC IP needs special setting
+ for handling High Speed
+- dmas: List of DMA specifiers with the controller specific
+ format as described in the generic DMA client
+ binding. A tx and rx specifier is required.
+- dma-names: List of DMA request names. These strings correspond
+ 1:1 with the DMA specifiers listed in dmas.
+ The string naming is to be "rx" and "tx" for
+ RX and TX DMA requests, respectively.
Examples:
diff --git a/Documentation/devicetree/bindings/mmc/tmio_mmc.txt b/Documentation/devicetree/bindings/mmc/tmio_mmc.txt
index 4fd8b7acc510..54ef642f23a0 100644
--- a/Documentation/devicetree/bindings/mmc/tmio_mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/tmio_mmc.txt
@@ -15,6 +15,8 @@ Required properties:
"renesas,sdhi-r7s72100" - SDHI IP on R7S72100 SoC
"renesas,sdhi-r8a73a4" - SDHI IP on R8A73A4 SoC
"renesas,sdhi-r8a7740" - SDHI IP on R8A7740 SoC
+ "renesas,sdhi-r8a7743" - SDHI IP on R8A7743 SoC
+ "renesas,sdhi-r8a7745" - SDHI IP on R8A7745 SoC
"renesas,sdhi-r8a7778" - SDHI IP on R8A7778 SoC
"renesas,sdhi-r8a7779" - SDHI IP on R8A7779 SoC
"renesas,sdhi-r8a7790" - SDHI IP on R8A7790 SoC
@@ -33,10 +35,8 @@ Required properties:
If 2 clocks are specified by the hardware, you must name them as
"core" and "cd". If the controller only has 1 clock, naming is not
required.
- Below is the number clocks for each supported SoC:
- 1: SH73A0, R8A73A4, R8A7740, R8A7778, R8A7779, R8A7790
- R8A7791, R8A7792, R8A7793, R8A7794, R8A7795, R8A7796
- 2: R7S72100
+ Devices which have more than 1 clock are listed below:
+ 2: R7S72100
Optional properties:
- toshiba,mmc-wrprotect-disable: write-protect detection is unavailable
diff --git a/Documentation/devicetree/bindings/mmc/zx-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/zx-dw-mshc.txt
index eaade0e5adeb..0f59bd5361f5 100644
--- a/Documentation/devicetree/bindings/mmc/zx-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/zx-dw-mshc.txt
@@ -25,9 +25,7 @@ Example:
clock-frequency = <50000000>;
clocks = <&topcrm SD0_AHB>, <&topcrm SD0_WCLK>;
clock-names = "biu", "ciu";
- num-slots = <1>;
max-frequency = <50000000>;
cap-sdio-irq;
cap-sd-highspeed;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/mtd/atmel-nand.txt b/Documentation/devicetree/bindings/mtd/atmel-nand.txt
index f6bee57e453a..9bb66e476672 100644
--- a/Documentation/devicetree/bindings/mtd/atmel-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/atmel-nand.txt
@@ -59,8 +59,22 @@ Required properties:
- reg: should contain 2 register ranges. The first one is pointing to the PMECC
block, and the second one to the PMECC_ERRLOC block.
+* SAMA5 NFC I/O bindings:
+
+SAMA5 SoCs embed an advanced NAND controller logic to automate READ/WRITE page
+operations. This interface to this logic is placed in a separate I/O range and
+should thus have its own DT node.
+
+- compatible: should be "atmel,sama5d3-nfc-io", "syscon".
+- reg: should contain the I/O range used to interact with the NFC logic.
+
Example:
+ nfc_io: nfc-io@70000000 {
+ compatible = "atmel,sama5d3-nfc-io", "syscon";
+ reg = <0x70000000 0x8000000>;
+ };
+
pmecc: ecc-engine@ffffc070 {
compatible = "atmel,at91sam9g45-pmecc";
reg = <0xffffc070 0x490>,
diff --git a/Documentation/devicetree/bindings/mtd/atmel-quadspi.txt b/Documentation/devicetree/bindings/mtd/atmel-quadspi.txt
index 489807005eda..b93c1e2f25dd 100644
--- a/Documentation/devicetree/bindings/mtd/atmel-quadspi.txt
+++ b/Documentation/devicetree/bindings/mtd/atmel-quadspi.txt
@@ -24,7 +24,6 @@ spi@f0020000 {
#size-cells = <0>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_spi0_default>;
- status = "okay";
m25p80@0 {
...
diff --git a/Documentation/devicetree/bindings/mtd/denali-nand.txt b/Documentation/devicetree/bindings/mtd/denali-nand.txt
index e593bbeb2115..504291d2e5c2 100644
--- a/Documentation/devicetree/bindings/mtd/denali-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/denali-nand.txt
@@ -3,10 +3,23 @@
Required properties:
- compatible : should be one of the following:
"altr,socfpga-denali-nand" - for Altera SOCFPGA
+ "socionext,uniphier-denali-nand-v5a" - for Socionext UniPhier (v5a)
+ "socionext,uniphier-denali-nand-v5b" - for Socionext UniPhier (v5b)
- reg : should contain registers location and length for data and reg.
- reg-names: Should contain the reg names "nand_data" and "denali_reg"
- interrupts : The interrupt number.
+Optional properties:
+ - nand-ecc-step-size: see nand.txt for details. If present, the value must be
+ 512 for "altr,socfpga-denali-nand"
+ 1024 for "socionext,uniphier-denali-nand-v5a"
+ 1024 for "socionext,uniphier-denali-nand-v5b"
+ - nand-ecc-strength: see nand.txt for details. Valid values are:
+ 8, 15 for "altr,socfpga-denali-nand"
+ 8, 16, 24 for "socionext,uniphier-denali-nand-v5a"
+ 8, 16 for "socionext,uniphier-denali-nand-v5b"
+ - nand-ecc-maximize: see nand.txt for details
+
The device tree may optionally contain sub-nodes describing partitions of the
address space. See partition.txt for more detail.
diff --git a/Documentation/devicetree/bindings/mtd/elm.txt b/Documentation/devicetree/bindings/mtd/elm.txt
index 8c1528c421d4..59ddc61c1076 100644
--- a/Documentation/devicetree/bindings/mtd/elm.txt
+++ b/Documentation/devicetree/bindings/mtd/elm.txt
@@ -1,7 +1,7 @@
Error location module
Required properties:
-- compatible: Must be "ti,am33xx-elm"
+- compatible: Must be "ti,am3352-elm"
- reg: physical base address and size of the registers map.
- interrupts: Interrupt number for the elm.
diff --git a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
index 174f68c26c1b..dd559045593d 100644
--- a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
@@ -5,7 +5,7 @@ the GPMC controller with a name of "nand".
All timing relevant properties as well as generic gpmc child properties are
explained in a separate documents - please refer to
-Documentation/devicetree/bindings/bus/ti-gpmc.txt
+Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
For NAND specific properties such as ECC modes or bus width, please refer to
Documentation/devicetree/bindings/mtd/nand.txt
diff --git a/Documentation/devicetree/bindings/mtd/gpmc-nor.txt b/Documentation/devicetree/bindings/mtd/gpmc-nor.txt
index 4828c17bb784..131d3a74d0bd 100644
--- a/Documentation/devicetree/bindings/mtd/gpmc-nor.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmc-nor.txt
@@ -5,7 +5,7 @@ child nodes of the GPMC controller with a name of "nor".
All timing relevant properties as well as generic GPMC child properties are
explained in a separate documents. Please refer to
-Documentation/devicetree/bindings/bus/ti-gpmc.txt
+Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
Required properties:
- bank-width: Width of NOR flash in bytes. GPMC supports 8-bit and
@@ -28,7 +28,7 @@ Required properties:
Optional properties:
- gpmc,XXX Additional GPMC timings and settings parameters. See
- Documentation/devicetree/bindings/bus/ti-gpmc.txt
+ Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
Optional properties for partition table parsing:
- #address-cells: should be set to 1
diff --git a/Documentation/devicetree/bindings/mtd/gpmc-onenand.txt b/Documentation/devicetree/bindings/mtd/gpmc-onenand.txt
index 5d8fa527c496..b6e8bfd024f4 100644
--- a/Documentation/devicetree/bindings/mtd/gpmc-onenand.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmc-onenand.txt
@@ -5,7 +5,7 @@ the GPMC controller with a name of "onenand".
All timing relevant properties as well as generic gpmc child properties are
explained in a separate documents - please refer to
-Documentation/devicetree/bindings/bus/ti-gpmc.txt
+Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
Required properties:
diff --git a/Documentation/devicetree/bindings/mtd/gpmi-nand.txt b/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
index d02acaff3c35..b289ef3c1b7e 100644
--- a/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
@@ -4,7 +4,12 @@ The GPMI nand controller provides an interface to control the
NAND flash chips.
Required properties:
- - compatible : should be "fsl,<chip>-gpmi-nand"
+ - compatible : should be "fsl,<chip>-gpmi-nand", chip can be:
+ * imx23
+ * imx28
+ * imx6q
+ * imx6sx
+ * imx7d
- reg : should contain registers location and length for gpmi and bch.
- reg-names: Should contain the reg names "gpmi-nand" and "bch"
- interrupts : BCH interrupt number.
@@ -13,6 +18,13 @@ Required properties:
and GPMI DMA channel ID.
Refer to dma.txt and fsl-mxs-dma.txt for details.
- dma-names: Must be "rx-tx".
+ - clocks : clocks phandle and clock specifier corresponding to each clock
+ specified in clock-names.
+ - clock-names : The "gpmi_io" clock is always required. Which clocks are
+ exactly required depends on chip:
+ * imx23/imx28 : "gpmi_io"
+ * imx6q/sx : "gpmi_io", "gpmi_apb", "gpmi_bch", "gpmi_bch_apb", "per1_bch"
+ * imx7d : "gpmi_io", "gpmi_bch_apb"
Optional properties:
- nand-on-flash-bbt: boolean to enable on flash bbt option if not
diff --git a/Documentation/devicetree/bindings/mtd/microchip,mchp23k256.txt b/Documentation/devicetree/bindings/mtd/microchip,mchp23k256.txt
new file mode 100644
index 000000000000..7328eb92a03c
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/microchip,mchp23k256.txt
@@ -0,0 +1,18 @@
+* MTD SPI driver for Microchip 23K256 (and similar) serial SRAM
+
+Required properties:
+- #address-cells, #size-cells : Must be present if the device has sub-nodes
+ representing partitions.
+- compatible : Must be one of "microchip,mchp23k256" or "microchip,mchp23lcv1024"
+- reg : Chip-Select number
+- spi-max-frequency : Maximum frequency of the SPI bus the chip can operate at
+
+Example:
+
+ spi-sram@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "microchip,mchp23k256";
+ reg = <0>;
+ spi-max-frequency = <20000000>;
+ };
diff --git a/Documentation/devicetree/bindings/mtd/mtk-nand.txt b/Documentation/devicetree/bindings/mtd/mtk-nand.txt
index 069c192ed5c2..dbf9e054c11c 100644
--- a/Documentation/devicetree/bindings/mtd/mtk-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/mtk-nand.txt
@@ -12,7 +12,8 @@ tree nodes.
The first part of NFC is NAND Controller Interface (NFI) HW.
Required NFI properties:
-- compatible: Should be "mediatek,mtxxxx-nfc".
+- compatible: Should be one of "mediatek,mt2701-nfc",
+ "mediatek,mt2712-nfc".
- reg: Base physical address and size of NFI.
- interrupts: Interrupts of NFI.
- clocks: NFI required clocks.
@@ -141,7 +142,7 @@ Example:
==============
Required BCH properties:
-- compatible: Should be "mediatek,mtxxxx-ecc".
+- compatible: Should be one of "mediatek,mt2701-ecc", "mediatek,mt2712-ecc".
- reg: Base physical address and size of ECC.
- interrupts: Interrupts of ECC.
- clocks: ECC required clocks.
diff --git a/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt b/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt
index 5ded66ad7aef..840f9405dcf0 100644
--- a/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt
+++ b/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt
@@ -37,7 +37,6 @@ nor_flash: spi@1100d000 {
clock-names = "spi", "sf";
#address-cells = <1>;
#size-cells = <0>;
- status = "disabled";
flash@0 {
compatible = "jedec,spi-nor";
diff --git a/Documentation/devicetree/bindings/mtd/nand.txt b/Documentation/devicetree/bindings/mtd/nand.txt
index b05601600083..133f3813719c 100644
--- a/Documentation/devicetree/bindings/mtd/nand.txt
+++ b/Documentation/devicetree/bindings/mtd/nand.txt
@@ -21,7 +21,7 @@ Optional NAND chip properties:
- nand-ecc-mode : String, operation mode of the NAND ecc mode.
Supported values are: "none", "soft", "hw", "hw_syndrome",
- "hw_oob_first".
+ "hw_oob_first", "on-die".
Deprecated values:
"soft_bch": use "soft" and nand-ecc-algo instead
- nand-ecc-algo: string, algorithm of NAND ECC.
diff --git a/Documentation/devicetree/bindings/mtd/partition.txt b/Documentation/devicetree/bindings/mtd/partition.txt
index 81a224da63be..36f3b769a626 100644
--- a/Documentation/devicetree/bindings/mtd/partition.txt
+++ b/Documentation/devicetree/bindings/mtd/partition.txt
@@ -1,29 +1,49 @@
-Representing flash partitions in devicetree
+Flash partitions in device tree
+===============================
-Partitions can be represented by sub-nodes of an mtd device. This can be used
+Flash devices can be partitioned into one or more functional ranges (e.g. "boot
+code", "nvram", "kernel").
+
+Different devices may be partitioned in a different ways. Some may use a fixed
+flash layout set at production time. Some may use on-flash table that describes
+the geometry and naming/purpose of each functional region. It is also possible
+to see these methods mixed.
+
+To assist system software in locating partitions, we allow describing which
+method is used for a given flash device. To describe the method there should be
+a subnode of the flash device that is named 'partitions'. It must have a
+'compatible' property, which is used to identify the method to use.
+
+We currently only document a binding for fixed layouts.
+
+
+Fixed Partitions
+================
+
+Partitions can be represented by sub-nodes of a flash device. This can be used
on platforms which have strong conventions about which portions of a flash are
used for what purposes, but which don't use an on-flash partition table such
as RedBoot.
-The partition table should be a subnode of the mtd node and should be named
+The partition table should be a subnode of the flash node and should be named
'partitions'. This node should have the following property:
- compatible : (required) must be "fixed-partitions"
Partitions are then defined in subnodes of the partitions node.
-For backwards compatibility partitions as direct subnodes of the mtd device are
+For backwards compatibility partitions as direct subnodes of the flash device are
supported. This use is discouraged.
NOTE: also for backwards compatibility, direct subnodes that have a compatible
string are not considered partitions, as they may be used for other bindings.
#address-cells & #size-cells must both be present in the partitions subnode of the
-mtd device. There are two valid values for both:
+flash device. There are two valid values for both:
<1>: for partitions that require a single 32-bit cell to represent their
size/address (aka the value is below 4 GiB)
<2>: for partitions that require two 32-bit cells to represent their
size/address (aka the value is 4 GiB or greater).
Required properties:
-- reg : The partition's offset and size within the mtd bank.
+- reg : The partition's offset and size within the flash
Optional properties:
- label : The label / name for this partition. If omitted, the label is taken
diff --git a/Documentation/devicetree/bindings/mtd/qcom_nandc.txt b/Documentation/devicetree/bindings/mtd/qcom_nandc.txt
index 70dd5118a324..73d336befa08 100644
--- a/Documentation/devicetree/bindings/mtd/qcom_nandc.txt
+++ b/Documentation/devicetree/bindings/mtd/qcom_nandc.txt
@@ -1,11 +1,20 @@
* Qualcomm NAND controller
Required properties:
-- compatible: should be "qcom,ipq806x-nand"
+- compatible: must be one of the following:
+ * "qcom,ipq806x-nand" - for EBI2 NAND controller being used in IPQ806x
+ SoC and it uses ADM DMA
+ * "qcom,ipq4019-nand" - for QPIC NAND controller v1.4.0 being used in
+ IPQ4019 SoC and it uses BAM DMA
+ * "qcom,ipq8074-nand" - for QPIC NAND controller v1.5.0 being used in
+ IPQ8074 SoC and it uses BAM DMA
+
- reg: MMIO address range
- clocks: must contain core clock and always on clock
- clock-names: must contain "core" for the core clock and "aon" for the
always on clock
+
+EBI2 specific properties:
- dmas: DMA specifier, consisting of a phandle to the ADM DMA
controller node and the channel number to be used for
NAND. Refer to dma.txt and qcom_adm.txt for more details
@@ -16,6 +25,12 @@ Required properties:
- qcom,data-crci: must contain the ADM data type CRCI block instance
number specified for the NAND controller on the given
platform
+
+QPIC specific properties:
+- dmas: DMA specifier, consisting of a phandle to the BAM DMA
+ and the channel number to be used for NAND. Refer to
+ dma.txt, qcom_bam_dma.txt for more details
+- dma-names: must contain all 3 channel names : "tx", "rx", "cmd"
- #address-cells: <1> - subnodes give the chip-select number
- #size-cells: <0>
@@ -26,7 +41,6 @@ chip-selects which (may) contain NAND flash chips. Their properties are as
follows.
Required properties:
-- compatible: should contain "qcom,nandcs"
- reg: a single integer representing the chip-select
number (e.g., 0, 1, 2, etc.)
- #address-cells: see partition.txt
@@ -43,8 +57,8 @@ partition.txt for more detail.
Example:
-nand@1ac00000 {
- compatible = "qcom,ebi2-nandc";
+nand-controller@1ac00000 {
+ compatible = "qcom,ipq806x-nand";
reg = <0x1ac00000 0x800>;
clocks = <&gcc EBI2_CLK>,
@@ -59,8 +73,7 @@ nand@1ac00000 {
#address-cells = <1>;
#size-cells = <0>;
- nandcs@0 {
- compatible = "qcom,nandcs";
+ nand@0 {
reg = <0>;
nand-ecc-strength = <4>;
@@ -84,3 +97,43 @@ nand@1ac00000 {
};
};
};
+
+nand-controller@79b0000 {
+ compatible = "qcom,ipq4019-nand";
+ reg = <0x79b0000 0x1000>;
+
+ clocks = <&gcc GCC_QPIC_CLK>,
+ <&gcc GCC_QPIC_AHB_CLK>;
+ clock-names = "core", "aon";
+
+ dmas = <&qpicbam 0>,
+ <&qpicbam 1>,
+ <&qpicbam 2>;
+ dma-names = "tx", "rx", "cmd";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ nand@0 {
+ reg = <0>;
+ nand-ecc-strength = <4>;
+ nand-ecc-step-size = <512>;
+ nand-bus-width = <8>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "boot-nand";
+ reg = <0 0x58a0000>;
+ };
+
+ partition@58a0000 {
+ label = "fs-nand";
+ reg = <0x58a0000 0x4000000>;
+ };
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/mtd/st-fsm.txt b/Documentation/devicetree/bindings/mtd/st-fsm.txt
index c2489391c437..54cef9ef3083 100644
--- a/Documentation/devicetree/bindings/mtd/st-fsm.txt
+++ b/Documentation/devicetree/bindings/mtd/st-fsm.txt
@@ -21,6 +21,5 @@ Example:
st,syscfg = <&syscfg_rear>;
st,boot-device-reg = <0x958>;
st,boot-device-spi = <0x1a>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/mtd/sunxi-nand.txt b/Documentation/devicetree/bindings/mtd/sunxi-nand.txt
index f322f56aef74..a37c67bcb43b 100644
--- a/Documentation/devicetree/bindings/mtd/sunxi-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/sunxi-nand.txt
@@ -41,7 +41,6 @@ nfc: nand@01c03000 {
#size-cells = <0>;
pinctrl-names = "default";
pinctrl-0 = <&nand_pins_a &nand_cs0_pins_a &nand_rb0_pins_a>;
- status = "okay";
nand@0 {
reg = <0>;
diff --git a/Documentation/devicetree/bindings/mux/adi,adg792a.txt b/Documentation/devicetree/bindings/mux/adi,adg792a.txt
new file mode 100644
index 000000000000..96b787a69f50
--- /dev/null
+++ b/Documentation/devicetree/bindings/mux/adi,adg792a.txt
@@ -0,0 +1,75 @@
+Bindings for Analog Devices ADG792A/G Triple 4:1 Multiplexers
+
+Required properties:
+- compatible : "adi,adg792a" or "adi,adg792g"
+- #mux-control-cells : <0> if parallel (the three muxes are bound together
+ with a single mux controller controlling all three muxes), or <1> if
+ not (one mux controller for each mux).
+* Standard mux-controller bindings as described in mux-controller.txt
+
+Optional properties for ADG792G:
+- gpio-controller : if present, #gpio-cells below is required.
+- #gpio-cells : should be <2>
+ - First cell is the GPO line number, i.e. 0 or 1
+ - Second cell is used to specify active high (0)
+ or active low (1)
+
+Optional properties:
+- idle-state : if present, array of states that the mux controllers will have
+ when idle. The special state MUX_IDLE_AS_IS is the default and
+ MUX_IDLE_DISCONNECT is also supported.
+
+States 0 through 3 correspond to signals A through D in the datasheet.
+
+Example:
+
+ /*
+ * Three independent mux controllers (of which one is used).
+ * Mux 0 is disconnected when idle, mux 1 idles in the previously
+ * selected state and mux 2 idles with signal B.
+ */
+ &i2c0 {
+ mux: mux-controller@50 {
+ compatible = "adi,adg792a";
+ reg = <0x50>;
+ #mux-control-cells = <1>;
+
+ idle-state = <MUX_IDLE_DISCONNECT MUX_IDLE_AS_IS 1>;
+ };
+ };
+
+ adc-mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc 0>;
+ io-channel-names = "parent";
+
+ mux-controls = <&mux 2>;
+
+ channels = "sync-1", "", "out";
+ };
+
+
+ /*
+ * Three parallel muxes with one mux controller, useful e.g. if
+ * the adc is differential, thus needing two signals to be muxed
+ * simultaneously for correct operation.
+ */
+ &i2c0 {
+ pmux: mux-controller@50 {
+ compatible = "adi,adg792a";
+ reg = <0x50>;
+ #mux-control-cells = <0>;
+
+ idle-state = <1>;
+ };
+ };
+
+ diff-adc-mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc 0>;
+ io-channel-names = "parent";
+
+ mux-controls = <&pmux>;
+
+ channels = "sync-1", "", "out";
+ };
diff --git a/Documentation/devicetree/bindings/mux/gpio-mux.txt b/Documentation/devicetree/bindings/mux/gpio-mux.txt
new file mode 100644
index 000000000000..b8f746344d80
--- /dev/null
+++ b/Documentation/devicetree/bindings/mux/gpio-mux.txt
@@ -0,0 +1,69 @@
+GPIO-based multiplexer controller bindings
+
+Define what GPIO pins are used to control a multiplexer. Or several
+multiplexers, if the same pins control more than one multiplexer.
+
+Required properties:
+- compatible : "gpio-mux"
+- mux-gpios : list of gpios used to control the multiplexer, least
+ significant bit first.
+- #mux-control-cells : <0>
+* Standard mux-controller bindings as decribed in mux-controller.txt
+
+Optional properties:
+- idle-state : if present, the state the mux will have when idle. The
+ special state MUX_IDLE_AS_IS is the default.
+
+The multiplexer state is defined as the number represented by the
+multiplexer GPIO pins, where the first pin is the least significant
+bit. An active pin is a binary 1, an inactive pin is a binary 0.
+
+Example:
+
+ mux: mux-controller {
+ compatible = "gpio-mux";
+ #mux-control-cells = <0>;
+
+ mux-gpios = <&pioA 0 GPIO_ACTIVE_HIGH>,
+ <&pioA 1 GPIO_ACTIVE_HIGH>;
+ };
+
+ adc-mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc 0>;
+ io-channel-names = "parent";
+
+ mux-controls = <&mux>;
+
+ channels = "sync-1", "in", "out", "sync-2";
+ };
+
+ i2c-mux {
+ compatible = "i2c-mux";
+ i2c-parent = <&i2c1>;
+
+ mux-controls = <&mux>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ i2c@0 {
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ssd1307: oled@3c {
+ /* ... */
+ };
+ };
+
+ i2c@3 {
+ reg = <3>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pca9555: pca9555@20 {
+ /* ... */
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mux/mmio-mux.txt b/Documentation/devicetree/bindings/mux/mmio-mux.txt
new file mode 100644
index 000000000000..a9bfb4d8b6ac
--- /dev/null
+++ b/Documentation/devicetree/bindings/mux/mmio-mux.txt
@@ -0,0 +1,60 @@
+MMIO register bitfield-based multiplexer controller bindings
+
+Define register bitfields to be used to control multiplexers. The parent
+device tree node must be a syscon node to provide register access.
+
+Required properties:
+- compatible : "mmio-mux"
+- #mux-control-cells : <1>
+- mux-reg-masks : an array of register offset and pre-shifted bitfield mask
+ pairs, each describing a single mux control.
+* Standard mux-controller bindings as decribed in mux-controller.txt
+
+Optional properties:
+- idle-states : if present, the state the muxes will have when idle. The
+ special state MUX_IDLE_AS_IS is the default.
+
+The multiplexer state of each multiplexer is defined as the value of the
+bitfield described by the corresponding register offset and bitfield mask pair
+in the mux-reg-masks array, accessed through the parent syscon.
+
+Example:
+
+ syscon {
+ compatible = "syscon";
+
+ mux: mux-controller {
+ compatible = "mmio-mux";
+ #mux-control-cells = <1>;
+
+ mux-reg-masks = <0x3 0x30>, /* 0: reg 0x3, bits 5:4 */
+ <0x3 0x40>, /* 1: reg 0x3, bit 6 */
+ idle-states = <MUX_IDLE_AS_IS>, <0>;
+ };
+ };
+
+ video-mux {
+ compatible = "video-mux";
+ mux-controls = <&mux 0>;
+
+ ports {
+ /* inputs 0..3 */
+ port@0 {
+ reg = <0>;
+ };
+ port@1 {
+ reg = <1>;
+ };
+ port@2 {
+ reg = <2>;
+ };
+ port@3 {
+ reg = <3>;
+ };
+
+ /* output */
+ port@4 {
+ reg = <4>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mux/mux-controller.txt b/Documentation/devicetree/bindings/mux/mux-controller.txt
new file mode 100644
index 000000000000..4f47e4bd2fa0
--- /dev/null
+++ b/Documentation/devicetree/bindings/mux/mux-controller.txt
@@ -0,0 +1,157 @@
+Common multiplexer controller bindings
+======================================
+
+A multiplexer (or mux) controller will have one, or several, consumer devices
+that uses the mux controller. Thus, a mux controller can possibly control
+several parallel multiplexers. Presumably there will be at least one
+multiplexer needed by each consumer, but a single mux controller can of course
+control several multiplexers for a single consumer.
+
+A mux controller provides a number of states to its consumers, and the state
+space is a simple zero-based enumeration. I.e. 0-1 for a 2-way multiplexer,
+0-7 for an 8-way multiplexer, etc.
+
+
+Consumers
+---------
+
+Mux controller consumers should specify a list of mux controllers that they
+want to use with a property containing a 'mux-ctrl-list':
+
+ mux-ctrl-list ::= <single-mux-ctrl> [mux-ctrl-list]
+ single-mux-ctrl ::= <mux-ctrl-phandle> [mux-ctrl-specifier]
+ mux-ctrl-phandle : phandle to mux controller node
+ mux-ctrl-specifier : array of #mux-control-cells specifying the
+ given mux controller (controller specific)
+
+Mux controller properties should be named "mux-controls". The exact meaning of
+each mux controller property must be documented in the device tree binding for
+each consumer. An optional property "mux-control-names" may contain a list of
+strings to label each of the mux controllers listed in the "mux-controls"
+property.
+
+Drivers for devices that use more than a single mux controller can use the
+"mux-control-names" property to map the name of the requested mux controller
+to an index into the list given by the "mux-controls" property.
+
+mux-ctrl-specifier typically encodes the chip-relative mux controller number.
+If the mux controller chip only provides a single mux controller, the
+mux-ctrl-specifier can typically be left out.
+
+Example:
+
+ /* One consumer of a 2-way mux controller (one GPIO-line) */
+ mux: mux-controller {
+ compatible = "gpio-mux";
+ #mux-control-cells = <0>;
+
+ mux-gpios = <&pioA 0 GPIO_ACTIVE_HIGH>;
+ };
+
+ adc-mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc 0>;
+ io-channel-names = "parent";
+
+ mux-controls = <&mux>;
+ mux-control-names = "adc";
+
+ channels = "sync", "in";
+ };
+
+Note that in the example above, specifying the "mux-control-names" is redundant
+because there is only one mux controller in the list. However, if the driver
+for the consumer node in fact asks for a named mux controller, that name is of
+course still required.
+
+ /*
+ * Two consumers (one for an ADC line and one for an i2c bus) of
+ * parallel 4-way multiplexers controlled by the same two GPIO-lines.
+ */
+ mux: mux-controller {
+ compatible = "gpio-mux";
+ #mux-control-cells = <0>;
+
+ mux-gpios = <&pioA 0 GPIO_ACTIVE_HIGH>,
+ <&pioA 1 GPIO_ACTIVE_HIGH>;
+ };
+
+ adc-mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc 0>;
+ io-channel-names = "parent";
+
+ mux-controls = <&mux>;
+
+ channels = "sync-1", "in", "out", "sync-2";
+ };
+
+ i2c-mux {
+ compatible = "i2c-mux";
+ i2c-parent = <&i2c1>;
+
+ mux-controls = <&mux>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ i2c@0 {
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ssd1307: oled@3c {
+ /* ... */
+ };
+ };
+
+ i2c@3 {
+ reg = <3>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pca9555: pca9555@20 {
+ /* ... */
+ };
+ };
+ };
+
+
+Mux controller nodes
+--------------------
+
+Mux controller nodes must specify the number of cells used for the
+specifier using the '#mux-control-cells' property.
+
+Optionally, mux controller nodes can also specify the state the mux should
+have when it is idle. The idle-state property is used for this. If the
+idle-state is not present, the mux controller is typically left as is when
+it is idle. For multiplexer chips that expose several mux controllers, the
+idle-state property is an array with one idle state for each mux controller.
+
+The special value (-1) may be used to indicate that the mux should be left
+as is when it is idle. This is the default, but can still be useful for
+mux controller chips with more than one mux controller, particularly when
+there is a need to "step past" a mux controller and set some other idle
+state for a mux controller with a higher index.
+
+Some mux controllers have the ability to disconnect the input/output of the
+multiplexer. Using this disconnected high-impedance state as the idle state
+is indicated with idle state (-2).
+
+These constants are available in
+
+ #include <dt-bindings/mux/mux.h>
+
+as MUX_IDLE_AS_IS (-1) and MUX_IDLE_DISCONNECT (-2).
+
+An example mux controller node look like this (the adg972a chip is a triple
+4-way multiplexer):
+
+ mux: mux-controller@50 {
+ compatible = "adi,adg792a";
+ reg = <0x50>;
+ #mux-control-cells = <1>;
+
+ idle-state = <MUX_IDLE_DISCONNECT MUX_IDLE_AS_IS 2>;
+ };
diff --git a/Documentation/devicetree/bindings/net/anarion-gmac.txt b/Documentation/devicetree/bindings/net/anarion-gmac.txt
new file mode 100644
index 000000000000..fe678965ae69
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/anarion-gmac.txt
@@ -0,0 +1,25 @@
+* Adaptrum Anarion ethernet controller
+
+This device is a platform glue layer for stmmac.
+Please see stmmac.txt for the other unchanged properties.
+
+Required properties:
+ - compatible: Should be "adaptrum,anarion-gmac", "snps,dwmac"
+ - phy-mode: Should be "rgmii". Other modes are not currently supported.
+
+
+Examples:
+
+ gmac1: ethernet@f2014000 {
+ compatible = "adaptrum,anarion-gmac", "snps,dwmac";
+ reg = <0xf2014000 0x4000>, <0xf2018100 8>;
+
+ interrupt-parent = <&core_intc>;
+ interrupts = <21>;
+ interrupt-names = "macirq";
+
+ clocks = <&core_clk>;
+ clock-names = "stmmaceth";
+
+ phy-mode = "rgmii";
+ };
diff --git a/Documentation/devicetree/bindings/net/brcm,amac.txt b/Documentation/devicetree/bindings/net/brcm,amac.txt
index 2fefa1a44afd..0bfad656a9ff 100644
--- a/Documentation/devicetree/bindings/net/brcm,amac.txt
+++ b/Documentation/devicetree/bindings/net/brcm,amac.txt
@@ -11,6 +11,7 @@ Required properties:
- reg-names: Names of the registers.
"amac_base": Address and length of the GMAC registers
"idm_base": Address and length of the GMAC IDM registers
+ (required for NSP and Northstar2)
"nicpm_base": Address and length of the NIC Port Manager
registers (required for Northstar2)
- interrupts: Interrupt number
@@ -26,5 +27,4 @@ amac0: ethernet@18022000 {
<0x18110000 0x1000>;
reg-names = "amac_base", "idm_base";
interrupts = <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/net/brcm,bgmac-nsp.txt b/Documentation/devicetree/bindings/net/brcm,bgmac-nsp.txt
deleted file mode 100644
index 022946caa7e2..000000000000
--- a/Documentation/devicetree/bindings/net/brcm,bgmac-nsp.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-Broadcom GMAC Ethernet Controller Device Tree Bindings
--------------------------------------------------------------
-
-Required properties:
- - compatible: "brcm,bgmac-nsp"
- - reg: Address and length of the GMAC registers,
- Address and length of the GMAC IDM registers
- - reg-names: Names of the registers. Must have both "gmac_base" and
- "idm_base"
- - interrupts: Interrupt number
-
-Optional properties:
-- mac-address: See ethernet.txt file in the same directory
-
-Examples:
-
-gmac0: ethernet@18022000 {
- compatible = "brcm,bgmac-nsp";
- reg = <0x18022000 0x1000>,
- <0x18110000 0x1000>;
- reg-names = "gmac_base", "idm_base";
- interrupts = <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
- status = "disabled";
-};
diff --git a/Documentation/devicetree/bindings/net/broadcom-bluetooth.txt b/Documentation/devicetree/bindings/net/broadcom-bluetooth.txt
new file mode 100644
index 000000000000..4194ff7e6ee6
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/broadcom-bluetooth.txt
@@ -0,0 +1,35 @@
+Broadcom Bluetooth Chips
+---------------------
+
+This documents the binding structure and common properties for serial
+attached Broadcom devices.
+
+Serial attached Broadcom devices shall be a child node of the host UART
+device the slave device is attached to.
+
+Required properties:
+
+ - compatible: should contain one of the following:
+ * "brcm,bcm43438-bt"
+
+Optional properties:
+
+ - max-speed: see Documentation/devicetree/bindings/serial/slave-device.txt
+ - shutdown-gpios: GPIO specifier, used to enable the BT module
+ - device-wakeup-gpios: GPIO specifier, used to wakeup the controller
+ - host-wakeup-gpios: GPIO specifier, used to wakeup the host processor
+ - clocks: clock specifier if external clock provided to the controller
+ - clock-names: should be "extclk"
+
+
+Example:
+
+&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2_pins>;
+
+ bluetooth {
+ compatible = "brcm,bcm43438-bt";
+ max-speed = <921600>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/net/btusb.txt b/Documentation/devicetree/bindings/net/btusb.txt
index 01fa2d4188d4..9c5e663fa1af 100644
--- a/Documentation/devicetree/bindings/net/btusb.txt
+++ b/Documentation/devicetree/bindings/net/btusb.txt
@@ -29,7 +29,6 @@ Example:
Following example uses irq pin number 3 of gpio0 for out of band wake-on-bt:
&usb_host1_ehci {
- status = "okay";
#address-cells = <1>;
#size-cells = <0>;
diff --git a/Documentation/devicetree/bindings/net/can/c_can.txt b/Documentation/devicetree/bindings/net/can/c_can.txt
index 5a1d8b0c39e9..2d504256b0d8 100644
--- a/Documentation/devicetree/bindings/net/can/c_can.txt
+++ b/Documentation/devicetree/bindings/net/can/c_can.txt
@@ -11,9 +11,20 @@ Required properties:
- interrupts : property with a value describing the interrupt
number
-Optional properties:
+The following are mandatory properties for DRA7x, AM33xx and AM43xx SoCs only:
- ti,hwmods : Must be "d_can<n>" or "c_can<n>", n being the
instance number
+
+The following are mandatory properties for Keystone 2 66AK2G SoCs only:
+- power-domains : Should contain a phandle to a PM domain provider node
+ and an args specifier containing the DCAN device id
+ value. This property is as per the binding,
+ Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
+- clocks : CAN functional clock phandle. This property is as per the
+ binding,
+ Documentation/devicetree/bindings/clock/ti,sci-clk.txt
+
+Optional properties:
- syscon-raminit : Handle to system control region that contains the
RAMINIT register, register offset to the RAMINIT
register and the CAN instance number (0 offset).
diff --git a/Documentation/devicetree/bindings/net/can/m_can.txt b/Documentation/devicetree/bindings/net/can/m_can.txt
index 9e331777c203..78138333ff7a 100644
--- a/Documentation/devicetree/bindings/net/can/m_can.txt
+++ b/Documentation/devicetree/bindings/net/can/m_can.txt
@@ -56,7 +56,6 @@ m_can1: can@020e8000 {
<&clks IMX6SX_CLK_CANFD>;
clock-names = "hclk", "cclk";
bosch,mram-cfg = <0x0 0 0 32 0 0 0 1>;
- status = "disabled";
};
Board dts:
diff --git a/Documentation/devicetree/bindings/net/cortina.txt b/Documentation/devicetree/bindings/net/cortina.txt
new file mode 100644
index 000000000000..40d0bd984113
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/cortina.txt
@@ -0,0 +1,21 @@
+Cortina Phy Driver Device Tree Bindings
+---------------------------------------
+
+CORTINA is a registered trademark of Cortina Systems, Inc.
+
+The driver supports the Cortina Electronic Dispersion Compensation (EDC)
+devices, equipped with clock and data recovery (CDR) circuits. These
+devices make use of registers that are not compatible with Clause 45 or
+Clause 22, therefore they need to be described using the
+"ethernet-phy-id" compatible.
+
+Since the driver only implements polling mode support, interrupts info
+can be skipped.
+
+Example (CS4340 phy):
+ mdio {
+ cs4340_phy@10 {
+ compatible = "ethernet-phy-id13e5.1002";
+ reg = <0x10>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/net/dsa/b53.txt b/Documentation/devicetree/bindings/net/dsa/b53.txt
index 8ec2ca21adeb..8acf51a4dfa8 100644
--- a/Documentation/devicetree/bindings/net/dsa/b53.txt
+++ b/Documentation/devicetree/bindings/net/dsa/b53.txt
@@ -13,6 +13,9 @@ Required properties:
"brcm,bcm5397"
"brcm,bcm5398"
+ For the BCM11360 SoC, must be:
+ "brcm,bcm11360-srab" and the mandatory "brcm,cygnus-srab" string
+
For the BCM5310x SoCs with an integrated switch, must be one of:
"brcm,bcm53010-srab"
"brcm,bcm53011-srab"
diff --git a/Documentation/devicetree/bindings/net/dsa/ksz.txt b/Documentation/devicetree/bindings/net/dsa/ksz.txt
new file mode 100644
index 000000000000..fd23904ac68e
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/ksz.txt
@@ -0,0 +1,70 @@
+Microchip KSZ Series Ethernet switches
+==================================
+
+Required properties:
+
+- compatible: For external switch chips, compatible string must be exactly one
+ of: "microchip,ksz9477"
+
+See Documentation/devicetree/bindings/dsa/dsa.txt for a list of additional
+required and optional properties.
+
+Examples:
+
+Ethernet switch connected via SPI to the host, CPU port wired to eth0:
+
+ eth0: ethernet@10001000 {
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+ };
+
+ spi1: spi@f8008000 {
+ pinctrl-0 = <&pinctrl_spi_ksz>;
+ cs-gpios = <&pioC 25 0>;
+ id = <1>;
+
+ ksz9477: ksz9477@0 {
+ compatible = "microchip,ksz9477";
+ reg = <0>;
+
+ spi-max-frequency = <44000000>;
+ spi-cpha;
+ spi-cpol;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ reg = <0>;
+ label = "lan1";
+ };
+ port@1 {
+ reg = <1>;
+ label = "lan2";
+ };
+ port@2 {
+ reg = <2>;
+ label = "lan3";
+ };
+ port@3 {
+ reg = <3>;
+ label = "lan4";
+ };
+ port@4 {
+ reg = <4>;
+ label = "lan5";
+ };
+ port@5 {
+ reg = <5>;
+ label = "cpu";
+ ethernet = <&eth0>;
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/net/dsa/lan9303.txt b/Documentation/devicetree/bindings/net/dsa/lan9303.txt
index 04f2965a4467..4448d063ddf6 100644
--- a/Documentation/devicetree/bindings/net/dsa/lan9303.txt
+++ b/Documentation/devicetree/bindings/net/dsa/lan9303.txt
@@ -27,7 +27,6 @@ Example:
I2C managed mode:
master: masterdevice@X {
- status = "okay";
fixed-link { /* RMII fixed link to LAN9303 */
speed = <100>;
@@ -38,7 +37,6 @@ I2C managed mode:
switch: switch@a {
compatible = "smsc,lan9303-i2c";
reg = <0xa>;
- status = "okay";
reset-gpios = <&gpio7 6 GPIO_ACTIVE_LOW>;
reset-duration = <200>;
@@ -67,7 +65,6 @@ I2C managed mode:
MDIO managed mode:
master: masterdevice@X {
- status = "okay";
phy-handle = <&switch>;
mdio {
diff --git a/Documentation/devicetree/bindings/net/ethernet.txt b/Documentation/devicetree/bindings/net/ethernet.txt
index 3a6916909d90..2974e63ba311 100644
--- a/Documentation/devicetree/bindings/net/ethernet.txt
+++ b/Documentation/devicetree/bindings/net/ethernet.txt
@@ -1,5 +1,9 @@
The following properties are common to the Ethernet controllers:
+NOTE: All 'phy*' properties documented below are Ethernet specific. For the
+generic PHY 'phys' property, see
+Documentation/devicetree/bindings/phy/phy-bindings.txt.
+
- local-mac-address: array of 6 bytes, specifies the MAC address that was
assigned to the network device;
- mac-address: array of 6 bytes, specifies the MAC address that was last used by
@@ -8,9 +12,11 @@ The following properties are common to the Ethernet controllers:
property;
- max-speed: number, specifies maximum speed in Mbit/s supported by the device;
- max-frame-size: number, maximum transfer unit (IEEE defined MTU), rather than
- the maximum frame size (there's contradiction in ePAPR).
+ the maximum frame size (there's contradiction in the Devicetree
+ Specification).
- phy-mode: string, operation mode of the PHY interface. This is now a de-facto
standard property; supported values are:
+ * "internal"
* "mii"
* "gmii"
* "sgmii"
@@ -32,9 +38,13 @@ The following properties are common to the Ethernet controllers:
* "2000base-x",
* "2500base-x",
* "rxaui"
-- phy-connection-type: the same as "phy-mode" property but described in ePAPR;
+ * "xaui"
+ * "10gbase-kr" (10GBASE-KR, XFI, SFI)
+- phy-connection-type: the same as "phy-mode" property but described in the
+ Devicetree Specification;
- phy-handle: phandle, specifies a reference to a node representing a PHY
- device; this property is described in ePAPR and so preferred;
+ device; this property is described in the Devicetree Specification and so
+ preferred;
- phy: the same as "phy-handle" property, not recommended for new bindings.
- phy-device: the same as "phy-handle" property, not recommended for new
bindings.
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/fman.txt b/Documentation/devicetree/bindings/net/fsl-fman.txt
index df873d1f3b7c..df873d1f3b7c 100644
--- a/Documentation/devicetree/bindings/powerpc/fsl/fman.txt
+++ b/Documentation/devicetree/bindings/net/fsl-fman.txt
diff --git a/Documentation/devicetree/bindings/net/ftgmac100.txt b/Documentation/devicetree/bindings/net/ftgmac100.txt
index c1ce1680246f..72e7aaf7242e 100644
--- a/Documentation/devicetree/bindings/net/ftgmac100.txt
+++ b/Documentation/devicetree/bindings/net/ftgmac100.txt
@@ -30,6 +30,5 @@ Example:
compatible = "aspeed,ast2500-mac", "faraday,ftgmac100";
reg = <0x1e660000 0x180>;
interrupts = <2>;
- status = "okay";
use-ncsi;
};
diff --git a/Documentation/devicetree/bindings/net/gpmc-eth.txt b/Documentation/devicetree/bindings/net/gpmc-eth.txt
index ace4a64b3695..f7da3d73ca1b 100644
--- a/Documentation/devicetree/bindings/net/gpmc-eth.txt
+++ b/Documentation/devicetree/bindings/net/gpmc-eth.txt
@@ -9,7 +9,7 @@ the GPMC controller with an "ethernet" name.
All timing relevant properties as well as generic GPMC child properties are
explained in a separate documents. Please refer to
-Documentation/devicetree/bindings/bus/ti-gpmc.txt
+Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
For the properties relevant to the ethernet controller connected to the GPMC
refer to the binding documentation of the device. For example, the documentation
@@ -43,7 +43,7 @@ Required properties:
Optional properties:
- gpmc,XXX Additional GPMC timings and settings parameters. See
- Documentation/devicetree/bindings/bus/ti-gpmc.txt
+ Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
Example:
diff --git a/Documentation/devicetree/bindings/net/macb.txt b/Documentation/devicetree/bindings/net/macb.txt
index 1506e948610c..27966ae741e0 100644
--- a/Documentation/devicetree/bindings/net/macb.txt
+++ b/Documentation/devicetree/bindings/net/macb.txt
@@ -22,6 +22,7 @@ Required properties:
Required elements: 'pclk', 'hclk'
Optional elements: 'tx_clk'
Optional elements: 'rx_clk' applies to cdns,zynqmp-gem
+ Optional elements: 'tsu_clk'
- clocks: Phandles to input clocks.
Optional properties for PHY child node:
diff --git a/Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt b/Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt
index ae4234ca4ee4..bedcfd5a52cd 100644
--- a/Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt
+++ b/Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt
@@ -41,7 +41,6 @@ ethernet@70000 {
interrupts = <8>;
clocks = <&gate_clk 4>;
tx-csum-limit = <9800>
- status = "okay";
phy = <&phy0>;
phy-mode = "rgmii-id";
buffer-manager = <&bm>;
diff --git a/Documentation/devicetree/bindings/net/marvell-bt-8xxx.txt b/Documentation/devicetree/bindings/net/marvell-bt-8xxx.txt
index 9be1059ff03f..3d27c68613a6 100644
--- a/Documentation/devicetree/bindings/net/marvell-bt-8xxx.txt
+++ b/Documentation/devicetree/bindings/net/marvell-bt-8xxx.txt
@@ -44,7 +44,6 @@ Example for SDIO device follows (calibration data is also available in
below example).
&mmc3 {
- status = "okay";
vmmc-supply = <&wlan_en_reg>;
bus-width = <4>;
cap-power-off-card;
@@ -70,7 +69,6 @@ below example).
Example for USB device:
&usb_host1_ohci {
- status = "okay";
#address-cells = <1>;
#size-cells = <0>;
diff --git a/Documentation/devicetree/bindings/net/marvell-neta-bm.txt b/Documentation/devicetree/bindings/net/marvell-neta-bm.txt
index c1b1d7c3bde1..07b31050dbe5 100644
--- a/Documentation/devicetree/bindings/net/marvell-neta-bm.txt
+++ b/Documentation/devicetree/bindings/net/marvell-neta-bm.txt
@@ -31,7 +31,6 @@ bm: bm@c8000 {
reg = <0xc8000 0xac>;
clocks = <&gateclk 13>;
internal-mem = <&bm_bppi>;
- status = "okay";
pool2,capacity = <4096>;
pool1,pkt-size = <512>;
};
@@ -45,5 +44,4 @@ bm_bppi: bm-bppi {
#address-cells = <1>;
#size-cells = <1>;
clocks = <&gateclk 13>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/net/marvell-orion-mdio.txt b/Documentation/devicetree/bindings/net/marvell-orion-mdio.txt
index ccdabdcc8618..42cd81090a2c 100644
--- a/Documentation/devicetree/bindings/net/marvell-orion-mdio.txt
+++ b/Documentation/devicetree/bindings/net/marvell-orion-mdio.txt
@@ -1,12 +1,14 @@
* Marvell MDIO Ethernet Controller interface
The Ethernet controllers of the Marvel Kirkwood, Dove, Orion5x,
-MV78xx0, Armada 370 and Armada XP have an identical unit that provides
-an interface with the MDIO bus. This driver handles this MDIO
-interface.
+MV78xx0, Armada 370, Armada XP, Armada 7k and Armada 8k have an
+identical unit that provides an interface with the MDIO bus.
+Additionally, Armada 7k and Armada 8k has a second unit which
+provides an interface with the xMDIO bus. This driver handles
+these interfaces.
Required properties:
-- compatible: "marvell,orion-mdio"
+- compatible: "marvell,orion-mdio" or "marvell,xmdio"
- reg: address and length of the MDIO registers. When an interrupt is
not present, the length is the size of the SMI register (4 bytes)
otherwise it must be 0x84 bytes to cover the interrupt control
diff --git a/Documentation/devicetree/bindings/net/marvell-pp2.txt b/Documentation/devicetree/bindings/net/marvell-pp2.txt
index 6b4956beff8c..1814fa13f6ab 100644
--- a/Documentation/devicetree/bindings/net/marvell-pp2.txt
+++ b/Documentation/devicetree/bindings/net/marvell-pp2.txt
@@ -21,8 +21,9 @@ Required properties:
- main controller clock (for both armada-375-pp2 and armada-7k-pp2)
- GOP clock (for both armada-375-pp2 and armada-7k-pp2)
- MG clock (only for armada-7k-pp2)
-- clock-names: names of used clocks, must be "pp_clk", "gop_clk" and
- "mg_clk" (the latter only for armada-7k-pp2).
+ - AXI clock (only for armada-7k-pp2)
+- clock-names: names of used clocks, must be "pp_clk", "gop_clk", "mg_clk"
+ and "axi_clk" (the 2 latter only for armada-7k-pp2).
The ethernet ports are represented by subnodes. At least one port is
required.
@@ -41,6 +42,11 @@ Optional properties (port):
- marvell,loopback: port is loopback mode
- phy: a phandle to a phy node defining the PHY address (as the reg
property, a single integer).
+- interrupt-names: if more than a single interrupt for rx is given, must
+ be the name associated to the interrupts listed. Valid
+ names are: "tx-cpu0", "tx-cpu1", "tx-cpu2", "tx-cpu3",
+ "rx-shared", "link".
+- marvell,system-controller: a phandle to the system controller.
Example for marvell,armada-375-pp2:
@@ -52,12 +58,10 @@ ethernet@f0000 {
<0xc5000 0x100>;
clocks = <&gateclk 3>, <&gateclk 19>;
clock-names = "pp_clk", "gop_clk";
- status = "okay";
eth0: eth0@c4000 {
interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
port-id = <0>;
- status = "okay";
phy = <&phy0>;
phy-mode = "gmii";
};
@@ -65,7 +69,6 @@ ethernet@f0000 {
eth1: eth1@c5000 {
interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
port-id = <1>;
- status = "okay";
phy = <&phy3>;
phy-mode = "gmii";
};
@@ -76,23 +79,42 @@ Example for marvell,armada-7k-pp2:
cpm_ethernet: ethernet@0 {
compatible = "marvell,armada-7k-pp22";
reg = <0x0 0x100000>, <0x129000 0xb000>;
- clocks = <&cpm_syscon0 1 3>, <&cpm_syscon0 1 9>, <&cpm_syscon0 1 5>;
- clock-names = "pp_clk", "gop_clk", "gp_clk";
+ clocks = <&cpm_syscon0 1 3>, <&cpm_syscon0 1 9>,
+ <&cpm_syscon0 1 5>, <&cpm_syscon0 1 18>;
+ clock-names = "pp_clk", "gop_clk", "gp_clk", "axi_clk";
eth0: eth0 {
- interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 39 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 43 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 47 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 51 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 55 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "tx-cpu0", "tx-cpu1", "tx-cpu2",
+ "tx-cpu3", "rx-shared";
port-id = <0>;
gop-port-id = <0>;
};
eth1: eth1 {
- interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 40 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 44 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 48 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 52 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 56 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "tx-cpu0", "tx-cpu1", "tx-cpu2",
+ "tx-cpu3", "rx-shared";
port-id = <1>;
gop-port-id = <2>;
};
eth2: eth2 {
- interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 41 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 45 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 49 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 53 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 57 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "tx-cpu0", "tx-cpu1", "tx-cpu2",
+ "tx-cpu3", "rx-shared";
port-id = <2>;
gop-port-id = <3>;
};
diff --git a/Documentation/devicetree/bindings/net/mediatek-net.txt b/Documentation/devicetree/bindings/net/mediatek-net.txt
index c7194e87d5f4..214eaa9a6683 100644
--- a/Documentation/devicetree/bindings/net/mediatek-net.txt
+++ b/Documentation/devicetree/bindings/net/mediatek-net.txt
@@ -7,24 +7,32 @@ have dual GMAC each represented by a child node..
* Ethernet controller node
Required properties:
-- compatible: Should be "mediatek,mt2701-eth"
+- compatible: Should be
+ "mediatek,mt2701-eth": for MT2701 SoC
+ "mediatek,mt7623-eth", "mediatek,mt2701-eth": for MT7623 SoC
+ "mediatek,mt7622-eth": for MT7622 SoC
- reg: Address and length of the register set for the device
- interrupts: Should contain the three frame engines interrupts in numeric
order. These are fe_int0, fe_int1 and fe_int2.
- clocks: the clock used by the core
- clock-names: the names of the clock listed in the clocks property. These are
- "ethif", "esw", "gp2", "gp1"
+ "ethif", "esw", "gp2", "gp1" : For MT2701 and MT7623 SoC
+ "ethif", "esw", "gp0", "gp1", "gp2", "sgmii_tx250m", "sgmii_rx250m",
+ "sgmii_cdr_ref", "sgmii_cdr_fb", "sgmii_ck", "eth2pll" : For MT7622 SoC
- power-domains: phandle to the power domain that the ethernet is part of
-- resets: Should contain a phandle to the ethsys reset signal
-- reset-names: Should contain the reset signal name "eth"
+- resets: Should contain phandles to the ethsys reset signals
+- reset-names: Should contain the names of reset signal listed in the resets
+ property
+ These are "fe", "gmac" and "ppe"
- mediatek,ethsys: phandle to the syscon node that handles the port setup
+- mediatek,sgmiisys: phandle to the syscon node that handles the SGMII setup
+ which is required for those SoCs equipped with SGMII such as MT7622 SoC.
- mediatek,pctl: phandle to the syscon node that handles the ports slew rate
and driver current
Optional properties:
- interrupt-parent: Should be the phandle for the interrupt controller
that services interrupts for this device
-
* Ethernet MAC node
Required properties:
diff --git a/Documentation/devicetree/bindings/net/meson-dwmac.txt b/Documentation/devicetree/bindings/net/meson-dwmac.txt
index 0703ad3f3c1e..354dd9896bb5 100644
--- a/Documentation/devicetree/bindings/net/meson-dwmac.txt
+++ b/Documentation/devicetree/bindings/net/meson-dwmac.txt
@@ -66,5 +66,4 @@ Example for GXBB:
<&clkc CLKID_MPLL2>;
clock-names = "stmmaceth", "clkin0", "clkin1";
phy-mode = "rgmii";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt b/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt
index c35b5b428a7f..42a248301615 100644
--- a/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt
+++ b/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt
@@ -69,7 +69,6 @@ Examples:
};
};
ethernet@70000 {
- status = "okay";
phy = <&phy0>;
phy-mode = "rgmii-id";
};
diff --git a/Documentation/devicetree/bindings/net/microchip,enc28j60.txt b/Documentation/devicetree/bindings/net/microchip,enc28j60.txt
index 1dc3bc75539d..44dff53d4dda 100644
--- a/Documentation/devicetree/bindings/net/microchip,enc28j60.txt
+++ b/Documentation/devicetree/bindings/net/microchip,enc28j60.txt
@@ -33,7 +33,6 @@ Example (for NXP i.MX28 with pin control stuff for GPIO irq):
compatible = "fsl,imx28-spi";
pinctrl-names = "default";
pinctrl-0 = <&spi2_pins_b &spi2_sck_cfg>;
- status = "okay";
enc28j60: ethernet@0 {
compatible = "microchip,enc28j60";
diff --git a/Documentation/devicetree/bindings/net/nfc/nfcmrvl.txt b/Documentation/devicetree/bindings/net/nfc/nfcmrvl.txt
index 76df9173825a..c9b35251bb20 100644
--- a/Documentation/devicetree/bindings/net/nfc/nfcmrvl.txt
+++ b/Documentation/devicetree/bindings/net/nfc/nfcmrvl.txt
@@ -25,7 +25,6 @@ Optional I2C-based chip specific properties:
Example (for ARM-based BeagleBoard Black with 88W8887 on UART5):
&uart5 {
- status = "okay";
nfcmrvluart: nfcmrvluart@5 {
compatible = "marvell,nfc-uart";
@@ -41,7 +40,6 @@ Example (for ARM-based BeagleBoard Black with 88W8887 on UART5):
Example (for ARM-based BeagleBoard Black with 88W8887 on I2C1):
&i2c1 {
- status = "okay";
clock-frequency = <400000>;
nfcmrvli2c0: i2c@1 {
diff --git a/Documentation/devicetree/bindings/net/nfc/nxp-nci.txt b/Documentation/devicetree/bindings/net/nfc/nxp-nci.txt
index 5b6cd9b3f628..92486733df71 100644
--- a/Documentation/devicetree/bindings/net/nfc/nxp-nci.txt
+++ b/Documentation/devicetree/bindings/net/nfc/nxp-nci.txt
@@ -17,7 +17,6 @@ Example (for ARM-based BeagleBone with NPC100 NFC controller on I2C2):
&i2c2 {
- status = "okay";
npc100: npc100@29 {
diff --git a/Documentation/devicetree/bindings/net/nfc/pn533-i2c.txt b/Documentation/devicetree/bindings/net/nfc/pn533-i2c.txt
index 1aea822d4530..122460e42e3c 100644
--- a/Documentation/devicetree/bindings/net/nfc/pn533-i2c.txt
+++ b/Documentation/devicetree/bindings/net/nfc/pn533-i2c.txt
@@ -15,7 +15,6 @@ Example (for ARM-based BeagleBone with PN532 on I2C2):
&i2c2 {
- status = "okay";
pn532: pn532@24 {
diff --git a/Documentation/devicetree/bindings/net/nfc/pn544.txt b/Documentation/devicetree/bindings/net/nfc/pn544.txt
index dab69f36167c..538a86f7b2b0 100644
--- a/Documentation/devicetree/bindings/net/nfc/pn544.txt
+++ b/Documentation/devicetree/bindings/net/nfc/pn544.txt
@@ -17,7 +17,6 @@ Example (for ARM-based BeagleBone with PN544 on I2C2):
&i2c2 {
- status = "okay";
pn544: pn544@28 {
diff --git a/Documentation/devicetree/bindings/net/nfc/s3fwrn5.txt b/Documentation/devicetree/bindings/net/nfc/s3fwrn5.txt
index fb1e75facf1b..ed5b3eaadb39 100644
--- a/Documentation/devicetree/bindings/net/nfc/s3fwrn5.txt
+++ b/Documentation/devicetree/bindings/net/nfc/s3fwrn5.txt
@@ -12,7 +12,6 @@ Required properties:
Example:
&hsi2c_4 {
- status = "okay";
s3fwrn5@27 {
compatible = "samsung,s3fwrn5-i2c";
diff --git a/Documentation/devicetree/bindings/net/nfc/st-nci-i2c.txt b/Documentation/devicetree/bindings/net/nfc/st-nci-i2c.txt
index 263732e8879f..b46d473be425 100644
--- a/Documentation/devicetree/bindings/net/nfc/st-nci-i2c.txt
+++ b/Documentation/devicetree/bindings/net/nfc/st-nci-i2c.txt
@@ -20,7 +20,6 @@ Example (for ARM-based BeagleBoard xM with ST21NFCB on I2C2):
&i2c2 {
- status = "okay";
st21nfcb: st21nfcb@8 {
diff --git a/Documentation/devicetree/bindings/net/nfc/st-nci-spi.txt b/Documentation/devicetree/bindings/net/nfc/st-nci-spi.txt
index 711ca85a363d..54ce8e7ac681 100644
--- a/Documentation/devicetree/bindings/net/nfc/st-nci-spi.txt
+++ b/Documentation/devicetree/bindings/net/nfc/st-nci-spi.txt
@@ -19,7 +19,6 @@ Example (for ARM-based BeagleBoard xM with ST21NFCB on SPI4):
&mcspi4 {
- status = "okay";
st21nfcb: st21nfcb@0 {
diff --git a/Documentation/devicetree/bindings/net/nfc/st21nfca.txt b/Documentation/devicetree/bindings/net/nfc/st21nfca.txt
index 7bb2e213d6f9..5ee9440fa9ad 100644
--- a/Documentation/devicetree/bindings/net/nfc/st21nfca.txt
+++ b/Documentation/devicetree/bindings/net/nfc/st21nfca.txt
@@ -20,7 +20,6 @@ Example (for ARM-based BeagleBoard xM with ST21NFCA on I2C2):
&i2c2 {
- status = "okay";
st21nfca: st21nfca@1 {
diff --git a/Documentation/devicetree/bindings/net/nfc/st95hf.txt b/Documentation/devicetree/bindings/net/nfc/st95hf.txt
index ea3178bc9ddd..08a202e00d47 100644
--- a/Documentation/devicetree/bindings/net/nfc/st95hf.txt
+++ b/Documentation/devicetree/bindings/net/nfc/st95hf.txt
@@ -35,12 +35,10 @@ spi@9840000 {
#address-cells = <1>;
#size-cells = <0>;
cs-gpios = <&pio0 4>;
- status = "okay";
st95hf@0{
reg = <0>;
compatible = "st,st95hf";
- status = "okay";
spi-max-frequency = <1000000>;
enable-gpio = <&pio4 0>;
interrupt-parent = <&pio0>;
diff --git a/Documentation/devicetree/bindings/net/nfc/trf7970a.txt b/Documentation/devicetree/bindings/net/nfc/trf7970a.txt
index c627bbb3009e..5ca9362ef127 100644
--- a/Documentation/devicetree/bindings/net/nfc/trf7970a.txt
+++ b/Documentation/devicetree/bindings/net/nfc/trf7970a.txt
@@ -13,21 +13,16 @@ Optional SoC Specific Properties:
- pinctrl-names: Contains only one value - "default".
- pintctrl-0: Specifies the pin control groups used for this controller.
- autosuspend-delay: Specify autosuspend delay in milliseconds.
-- vin-voltage-override: Specify voltage of VIN pin in microvolts.
- irq-status-read-quirk: Specify that the trf7970a being used has the
"IRQ Status Read" erratum.
- en2-rf-quirk: Specify that the trf7970a being used has the "EN2 RF"
erratum.
-- t5t-rmb-extra-byte-quirk: Specify that the trf7970a has the erratum
- where an extra byte is returned by Read Multiple Block commands issued
- to Type 5 tags.
- vdd-io-supply: Regulator specifying voltage for vdd-io
- clock-frequency: Set to specify that the input frequency to the trf7970a is 13560000Hz or 27120000Hz
Example (for ARM-based BeagleBone with TRF7970A on SPI1):
&spi1 {
- status = "okay";
nfc@0 {
compatible = "ti,trf7970a";
@@ -37,16 +32,13 @@ Example (for ARM-based BeagleBone with TRF7970A on SPI1):
spi-max-frequency = <2000000>;
interrupt-parent = <&gpio2>;
interrupts = <14 0>;
- ti,enable-gpios = <&gpio2 2 GPIO_ACTIVE_LOW>,
- <&gpio2 5 GPIO_ACTIVE_LOW>;
+ ti,enable-gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>,
+ <&gpio2 5 GPIO_ACTIVE_HIGH>;
vin-supply = <&ldo3_reg>;
- vin-voltage-override = <5000000>;
vdd-io-supply = <&ldo2_reg>;
autosuspend-delay = <30000>;
irq-status-read-quirk;
en2-rf-quirk;
- t5t-rmb-extra-byte-quirk;
clock-frequency = <27120000>;
- status = "okay";
};
};
diff --git a/Documentation/devicetree/bindings/net/oxnas-dwmac.txt b/Documentation/devicetree/bindings/net/oxnas-dwmac.txt
index df0534e2eda1..d7117a22fd87 100644
--- a/Documentation/devicetree/bindings/net/oxnas-dwmac.txt
+++ b/Documentation/devicetree/bindings/net/oxnas-dwmac.txt
@@ -35,5 +35,4 @@ etha: ethernet@40400000 {
/* Regmap for sys registers */
oxsemi,sys-ctrl = <&sys>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/net/phy.txt b/Documentation/devicetree/bindings/net/phy.txt
index b55857696fc3..77d0b2a61ffa 100644
--- a/Documentation/devicetree/bindings/net/phy.txt
+++ b/Documentation/devicetree/bindings/net/phy.txt
@@ -2,11 +2,7 @@ PHY nodes
Required properties:
- - interrupts : <a b> where a is the interrupt number and b is a
- field that represents an encoding of the sense and level
- information for the interrupt. This should be encoded based on
- the information in section 2) depending on the type of interrupt
- controller you have.
+ - interrupts : interrupt specifier for the sole interrupt.
- interrupt-parent : the phandle for the interrupt controller that
services interrupts for this device.
- reg : The ID number for the phy, usually a small integer
@@ -52,11 +48,16 @@ Optional Properties:
Mark the corresponding energy efficient ethernet mode as broken and
request the ethernet to stop advertising it.
+- phy-is-integrated: If set, indicates that the PHY is integrated into the same
+ physical package as the Ethernet MAC. If needed, muxers should be configured
+ to ensure the integrated PHY is used. The absence of this property indicates
+ the muxers should be configured so that the external PHY is used.
+
Example:
ethernet-phy@0 {
compatible = "ethernet-phy-id0141.0e90", "ethernet-phy-ieee802.3-c22";
- interrupt-parent = <40000>;
- interrupts = <35 1>;
+ interrupt-parent = <&PIC>;
+ interrupts = <35 IRQ_TYPE_EDGE_RISING>;
reg = <0>;
};
diff --git a/Documentation/devicetree/bindings/net/qca,qca7000.txt b/Documentation/devicetree/bindings/net/qca,qca7000.txt
new file mode 100644
index 000000000000..3987846b3fd3
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/qca,qca7000.txt
@@ -0,0 +1,86 @@
+* Qualcomm QCA7000
+
+The QCA7000 is a serial-to-powerline bridge with a host interface which could
+be configured either as SPI or UART slave. This configuration is done by
+the QCA7000 firmware.
+
+(a) Ethernet over SPI
+
+In order to use the QCA7000 as SPI device it must be defined as a child of a
+SPI master in the device tree.
+
+Required properties:
+- compatible : Should be "qca,qca7000"
+- reg : Should specify the SPI chip select
+- interrupts : The first cell should specify the index of the source
+ interrupt and the second cell should specify the trigger
+ type as rising edge
+- spi-cpha : Must be set
+- spi-cpol : Must be set
+
+Optional properties:
+- interrupt-parent : Specify the pHandle of the source interrupt
+- spi-max-frequency : Maximum frequency of the SPI bus the chip can operate at.
+ Numbers smaller than 1000000 or greater than 16000000
+ are invalid. Missing the property will set the SPI
+ frequency to 8000000 Hertz.
+- local-mac-address : see ./ethernet.txt
+- qca,legacy-mode : Set the SPI data transfer of the QCA7000 to legacy mode.
+ In this mode the SPI master must toggle the chip select
+ between each data word. In burst mode these gaps aren't
+ necessary, which is faster. This setting depends on how
+ the QCA7000 is setup via GPIO pin strapping. If the
+ property is missing the driver defaults to burst mode.
+
+SPI Example:
+
+/* Freescale i.MX28 SPI master*/
+ssp2: spi@80014000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,imx28-spi";
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi2_pins_a>;
+
+ qca7000: ethernet@0 {
+ compatible = "qca,qca7000";
+ reg = <0x0>;
+ interrupt-parent = <&gpio3>; /* GPIO Bank 3 */
+ interrupts = <25 0x1>; /* Index: 25, rising edge */
+ spi-cpha; /* SPI mode: CPHA=1 */
+ spi-cpol; /* SPI mode: CPOL=1 */
+ spi-max-frequency = <8000000>; /* freq: 8 MHz */
+ local-mac-address = [ A0 B0 C0 D0 E0 F0 ];
+ };
+};
+
+(b) Ethernet over UART
+
+In order to use the QCA7000 as UART slave it must be defined as a child of a
+UART master in the device tree. It is possible to preconfigure the UART
+settings of the QCA7000 firmware, but it's not possible to change them during
+runtime.
+
+Required properties:
+- compatible : Should be "qca,qca7000"
+
+Optional properties:
+- local-mac-address : see ./ethernet.txt
+- current-speed : current baud rate of QCA7000 which defaults to 115200
+ if absent, see also ../serial/slave-device.txt
+
+UART Example:
+
+/* Freescale i.MX28 UART */
+auart0: serial@8006a000 {
+ compatible = "fsl,imx28-auart", "fsl,imx23-auart";
+ reg = <0x8006a000 0x2000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&auart0_2pins_a>;
+
+ qca7000: ethernet {
+ compatible = "qca,qca7000";
+ local-mac-address = [ A0 B0 C0 D0 E0 F0 ];
+ current-speed = <38400>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/net/qca-qca7000-spi.txt b/Documentation/devicetree/bindings/net/qca-qca7000-spi.txt
deleted file mode 100644
index c74989c0d8ac..000000000000
--- a/Documentation/devicetree/bindings/net/qca-qca7000-spi.txt
+++ /dev/null
@@ -1,47 +0,0 @@
-* Qualcomm QCA7000 (Ethernet over SPI protocol)
-
-Note: The QCA7000 is useable as a SPI device. In this case it must be defined
-as a child of a SPI master in the device tree.
-
-Required properties:
-- compatible : Should be "qca,qca7000"
-- reg : Should specify the SPI chip select
-- interrupts : The first cell should specify the index of the source interrupt
- and the second cell should specify the trigger type as rising edge
-- spi-cpha : Must be set
-- spi-cpol: Must be set
-
-Optional properties:
-- interrupt-parent : Specify the pHandle of the source interrupt
-- spi-max-frequency : Maximum frequency of the SPI bus the chip can operate at.
- Numbers smaller than 1000000 or greater than 16000000 are invalid. Missing
- the property will set the SPI frequency to 8000000 Hertz.
-- local-mac-address: 6 bytes, MAC address
-- qca,legacy-mode : Set the SPI data transfer of the QCA7000 to legacy mode.
- In this mode the SPI master must toggle the chip select between each data
- word. In burst mode these gaps aren't necessary, which is faster.
- This setting depends on how the QCA7000 is setup via GPIO pin strapping.
- If the property is missing the driver defaults to burst mode.
-
-Example:
-
-/* Freescale i.MX28 SPI master*/
-ssp2: spi@80014000 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "fsl,imx28-spi";
- pinctrl-names = "default";
- pinctrl-0 = <&spi2_pins_a>;
- status = "okay";
-
- qca7000: ethernet@0 {
- compatible = "qca,qca7000";
- reg = <0x0>;
- interrupt-parent = <&gpio3>; /* GPIO Bank 3 */
- interrupts = <25 0x1>; /* Index: 25, rising edge */
- spi-cpha; /* SPI mode: CPHA=1 */
- spi-cpol; /* SPI mode: CPOL=1 */
- spi-max-frequency = <8000000>; /* freq: 8 MHz */
- local-mac-address = [ A0 B0 C0 D0 E0 F0 ];
- };
-};
diff --git a/Documentation/devicetree/bindings/net/renesas,ravb.txt b/Documentation/devicetree/bindings/net/renesas,ravb.txt
index b519503be51a..16723535e1aa 100644
--- a/Documentation/devicetree/bindings/net/renesas,ravb.txt
+++ b/Documentation/devicetree/bindings/net/renesas,ravb.txt
@@ -4,19 +4,25 @@ This file provides information on what the device node for the Ethernet AVB
interface contains.
Required properties:
-- compatible: "renesas,etheravb-r8a7790" if the device is a part of R8A7790 SoC.
- "renesas,etheravb-r8a7791" if the device is a part of R8A7791 SoC.
- "renesas,etheravb-r8a7792" if the device is a part of R8A7792 SoC.
- "renesas,etheravb-r8a7793" if the device is a part of R8A7793 SoC.
- "renesas,etheravb-r8a7794" if the device is a part of R8A7794 SoC.
- "renesas,etheravb-r8a7795" if the device is a part of R8A7795 SoC.
- "renesas,etheravb-r8a7796" if the device is a part of R8A7796 SoC.
- "renesas,etheravb-rcar-gen2" for generic R-Car Gen 2 compatible interface.
- "renesas,etheravb-rcar-gen3" for generic R-Car Gen 3 compatible interface.
+- compatible: Must contain one or more of the following:
+ - "renesas,etheravb-r8a7743" for the R8A7743 SoC.
+ - "renesas,etheravb-r8a7745" for the R8A7745 SoC.
+ - "renesas,etheravb-r8a7790" for the R8A7790 SoC.
+ - "renesas,etheravb-r8a7791" for the R8A7791 SoC.
+ - "renesas,etheravb-r8a7792" for the R8A7792 SoC.
+ - "renesas,etheravb-r8a7793" for the R8A7793 SoC.
+ - "renesas,etheravb-r8a7794" for the R8A7794 SoC.
+ - "renesas,etheravb-rcar-gen2" as a fallback for the above
+ R-Car Gen2 and RZ/G1 devices.
- When compatible with the generic version, nodes must list the
- SoC-specific version corresponding to the platform first
- followed by the generic version.
+ - "renesas,etheravb-r8a7795" for the R8A7795 SoC.
+ - "renesas,etheravb-r8a7796" for the R8A7796 SoC.
+ - "renesas,etheravb-rcar-gen3" as a fallback for the above
+ R-Car Gen3 devices.
+
+ When compatible with the generic version, nodes must list the
+ SoC-specific version corresponding to the platform first followed by
+ the generic version.
- reg: offset and length of (1) the register block and (2) the stream buffer.
- interrupts: A list of interrupt-specifiers, one for each entry in
diff --git a/Documentation/devicetree/bindings/net/rockchip-dwmac.txt b/Documentation/devicetree/bindings/net/rockchip-dwmac.txt
index 8f427550720a..9c16ee2965a2 100644
--- a/Documentation/devicetree/bindings/net/rockchip-dwmac.txt
+++ b/Documentation/devicetree/bindings/net/rockchip-dwmac.txt
@@ -4,12 +4,14 @@ The device node has following properties.
Required properties:
- compatible: should be "rockchip,<name>-gamc"
+ "rockchip,rk3128-gmac": found on RK312x SoCs
"rockchip,rk3228-gmac": found on RK322x SoCs
"rockchip,rk3288-gmac": found on RK3288 SoCs
"rockchip,rk3328-gmac": found on RK3328 SoCs
"rockchip,rk3366-gmac": found on RK3366 SoCs
"rockchip,rk3368-gmac": found on RK3368 SoCs
"rockchip,rk3399-gmac": found on RK3399 SoCs
+ "rockchip,rv1108-gmac": found on RV1108 SoCs
- reg: addresses and length of the register sets for the device.
- interrupts: Should contain the GMAC interrupts.
- interrupt-names: Should contain the interrupt names "macirq".
@@ -70,5 +72,4 @@ gmac: ethernet@ff290000 {
tx_delay = <0x30>;
rx_delay = <0x10>;
- status = "ok";
};
diff --git a/Documentation/devicetree/bindings/net/sff,sfp.txt b/Documentation/devicetree/bindings/net/sff,sfp.txt
new file mode 100644
index 000000000000..60e970ce10ee
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/sff,sfp.txt
@@ -0,0 +1,76 @@
+Small Form Factor (SFF) Committee Small Form-factor Pluggable (SFP)
+Transceiver
+
+Required properties:
+
+- compatible : must be "sff,sfp"
+
+Optional Properties:
+
+- i2c-bus : phandle of an I2C bus controller for the SFP two wire serial
+ interface
+
+- mod-def0-gpios : GPIO phandle and a specifier of the MOD-DEF0 (AKA Mod_ABS)
+ module presence input gpio signal, active (module absent) high
+
+- los-gpios : GPIO phandle and a specifier of the Receiver Loss of Signal
+ Indication input gpio signal, active (signal lost) high
+
+- tx-fault-gpios : GPIO phandle and a specifier of the Module Transmitter
+ Fault input gpio signal, active (fault condition) high
+
+- tx-disable-gpios : GPIO phandle and a specifier of the Transmitter Disable
+ output gpio signal, active (Tx disable) high
+
+- rate-select0-gpios : GPIO phandle and a specifier of the Rx Signaling Rate
+ Select (AKA RS0) output gpio signal, low: low Rx rate, high: high Rx rate
+
+- rate-select1-gpios : GPIO phandle and a specifier of the Tx Signaling Rate
+ Select (AKA RS1) output gpio signal (SFP+ only), low: low Tx rate, high:
+ high Tx rate
+
+Example #1: Direct serdes to SFP connection
+
+sfp_eth3: sfp-eth3 {
+ compatible = "sff,sfp";
+ i2c-bus = <&sfp_1g_i2c>;
+ los-gpios = <&cpm_gpio2 22 GPIO_ACTIVE_HIGH>;
+ mod-def0-gpios = <&cpm_gpio2 21 GPIO_ACTIVE_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&cpm_sfp_1g_pins &cps_sfp_1g_pins>;
+ tx-disable-gpios = <&cps_gpio1 24 GPIO_ACTIVE_HIGH>;
+ tx-fault-gpios = <&cpm_gpio2 19 GPIO_ACTIVE_HIGH>;
+};
+
+&cps_emac3 {
+ phy-names = "comphy";
+ phys = <&cps_comphy5 0>;
+ sfp = <&sfp_eth3>;
+};
+
+Example #2: Serdes to PHY to SFP connection
+
+sfp_eth0: sfp-eth0 {
+ compatible = "sff,sfp";
+ i2c-bus = <&sfpp0_i2c>;
+ los-gpios = <&cps_gpio1 28 GPIO_ACTIVE_HIGH>;
+ mod-def0-gpios = <&cps_gpio1 27 GPIO_ACTIVE_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&cps_sfpp0_pins>;
+ tx-disable-gpios = <&cps_gpio1 29 GPIO_ACTIVE_HIGH>;
+ tx-fault-gpios = <&cps_gpio1 26 GPIO_ACTIVE_HIGH>;
+};
+
+p0_phy: ethernet-phy@0 {
+ compatible = "ethernet-phy-ieee802.3-c45";
+ pinctrl-names = "default";
+ pinctrl-0 = <&cpm_phy0_pins &cps_phy0_pins>;
+ reg = <0>;
+ interrupt = <&cpm_gpio2 18 IRQ_TYPE_EDGE_FALLING>;
+ sfp = <&sfp_eth0>;
+};
+
+&cpm_eth0 {
+ phy = <&p0_phy>;
+ phy-mode = "10gbase-kr";
+};
diff --git a/Documentation/devicetree/bindings/net/smsc-lan87xx.txt b/Documentation/devicetree/bindings/net/smsc-lan87xx.txt
index 974edd5c85cc..8b7c719b0bb9 100644
--- a/Documentation/devicetree/bindings/net/smsc-lan87xx.txt
+++ b/Documentation/devicetree/bindings/net/smsc-lan87xx.txt
@@ -15,7 +15,6 @@ smsc phy with disabled energy detect mode on an am335x based board.
pinctrl-names = "default", "sleep";
pinctrl-0 = <&davinci_mdio_default>;
pinctrl-1 = <&davinci_mdio_sleep>;
- status = "okay";
ethernetphy0: ethernet-phy@0 {
reg = <0>;
diff --git a/Documentation/devicetree/bindings/net/socfpga-dwmac.txt b/Documentation/devicetree/bindings/net/socfpga-dwmac.txt
index 2e68a3cd8513..b30d04b54ee9 100644
--- a/Documentation/devicetree/bindings/net/socfpga-dwmac.txt
+++ b/Documentation/devicetree/bindings/net/socfpga-dwmac.txt
@@ -40,7 +40,6 @@ gmii_to_sgmii_converter: phy@0x100000240 {
gmac0: ethernet@ff700000 {
compatible = "altr,socfpga-stmmac", "snps,dwmac-3.70a", "snps,dwmac";
altr,sysmgr-syscon = <&sysmgr 0x60 0>;
- status = "disabled";
reg = <0xff700000 0x2000>;
interrupts = <0 115 4>;
interrupt-names = "macirq";
diff --git a/Documentation/devicetree/bindings/net/sti-dwmac.txt b/Documentation/devicetree/bindings/net/sti-dwmac.txt
index d05c1e1fd9b6..062c5174add3 100644
--- a/Documentation/devicetree/bindings/net/sti-dwmac.txt
+++ b/Documentation/devicetree/bindings/net/sti-dwmac.txt
@@ -34,7 +34,6 @@ Example:
ethernet0: dwmac@9630000 {
device_type = "network";
- status = "disabled";
compatible = "st,stih407-dwmac", "snps,dwmac", "snps,dwmac-3.710";
reg = <0x9630000 0x8000>;
reg-names = "stmmaceth";
diff --git a/Documentation/devicetree/bindings/net/stm32-dwmac.txt b/Documentation/devicetree/bindings/net/stm32-dwmac.txt
index c35afb7e956a..489dbcb66c5a 100644
--- a/Documentation/devicetree/bindings/net/stm32-dwmac.txt
+++ b/Documentation/devicetree/bindings/net/stm32-dwmac.txt
@@ -18,7 +18,6 @@ Example:
ethernet@40028000 {
compatible = "st,stm32-dwmac", "snps,dwmac-3.50a";
- status = "disabled";
reg = <0x40028000 0x8000>;
reg-names = "stmmaceth";
interrupts = <0 61 0>, <0 62 0>;
diff --git a/Documentation/devicetree/bindings/net/ti,dp83867.txt b/Documentation/devicetree/bindings/net/ti,dp83867.txt
index afe9630a5e7d..02c4353b5cf2 100644
--- a/Documentation/devicetree/bindings/net/ti,dp83867.txt
+++ b/Documentation/devicetree/bindings/net/ti,dp83867.txt
@@ -18,6 +18,13 @@ Optional property:
- ti,max-output-impedance - MAC Interface Impedance control to set
the programmable output impedance to
maximum value (70 ohms).
+ - ti,dp83867-rxctrl-strap-quirk - This denotes the fact that the
+ board has RX_DV/RX_CTRL pin strapped in
+ mode 1 or 2. To ensure PHY operation,
+ there are specific actions that
+ software needs to take when this pin is
+ strapped in these modes. See data manual
+ for details.
Note: ti,min-output-impedance and ti,max-output-impedance are mutually
exclusive. When both properties are present ti,max-output-impedance
diff --git a/Documentation/devicetree/bindings/net/ti,wilink-st.txt b/Documentation/devicetree/bindings/net/ti,wilink-st.txt
index cbad73a84ac4..1649c1f66b07 100644
--- a/Documentation/devicetree/bindings/net/ti,wilink-st.txt
+++ b/Documentation/devicetree/bindings/net/ti,wilink-st.txt
@@ -14,6 +14,12 @@ Required properties:
- compatible: should be one of the following:
"ti,wl1271-st"
"ti,wl1273-st"
+ "ti,wl1281-st"
+ "ti,wl1283-st"
+ "ti,wl1285-st"
+ "ti,wl1801-st"
+ "ti,wl1805-st"
+ "ti,wl1807-st"
"ti,wl1831-st"
"ti,wl1835-st"
"ti,wl1837-st"
@@ -22,6 +28,10 @@ Optional properties:
- enable-gpios : GPIO signal controlling enabling of BT. Active high.
- vio-supply : Vio input supply (1.8V)
- vbat-supply : Vbat input supply (2.9-4.8V)
+ - clocks : Must contain an entry, for each entry in clock-names.
+ See ../clocks/clock-bindings.txt for details.
+ - clock-names : Must include the following entry:
+ "ext_clock" (External clock provided to the TI combo chip).
Example:
@@ -31,5 +41,7 @@ Example:
bluetooth {
compatible = "ti,wl1835-st";
enable-gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>;
+ clocks = <&clk32k_wl18xx>;
+ clock-names = "ext_clock";
};
};
diff --git a/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt b/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt
index 5dbf169cd81c..b2bd4704f859 100644
--- a/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt
+++ b/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt
@@ -29,9 +29,8 @@ mmc3: mmc@01c12000 {
vmmc-supply = <&reg_vmmc3>;
bus-width = <4>;
non-removable;
- status = "okay";
- brcmf: bcrmf@1 {
+ brcmf: wifi@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
interrupt-parent = <&pio>;
diff --git a/Documentation/devicetree/bindings/net/wireless/esp,esp8089.txt b/Documentation/devicetree/bindings/net/wireless/esp,esp8089.txt
index 19331bb4ff6e..6830c4786f8a 100644
--- a/Documentation/devicetree/bindings/net/wireless/esp,esp8089.txt
+++ b/Documentation/devicetree/bindings/net/wireless/esp,esp8089.txt
@@ -21,7 +21,6 @@ Example:
mmc-pwrseq = <&wifi_pwrseq>;
bus-width = <4>;
non-removable;
- status = "okay";
esp8089: sdio_wifi@1 {
compatible = "esp,esp8089";
diff --git a/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt b/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
index 0854451ff91d..59de8646862d 100644
--- a/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
+++ b/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
@@ -48,7 +48,6 @@ IRQ pin 38 is used as system wakeup source interrupt. wakeup pin 3 is configured
so that firmware can wakeup host using this device side pin.
&mmc3 {
- status = "okay";
vmmc-supply = <&wlan_en_reg>;
mmc-pwrseq = <&wifi_pwrseq>;
bus-width = <4>;
diff --git a/Documentation/devicetree/bindings/net/wireless/ti,wlcore.txt b/Documentation/devicetree/bindings/net/wireless/ti,wlcore.txt
index 2a3d90de18ee..f42f6b0f1bc7 100644
--- a/Documentation/devicetree/bindings/net/wireless/ti,wlcore.txt
+++ b/Documentation/devicetree/bindings/net/wireless/ti,wlcore.txt
@@ -10,6 +10,7 @@ Required properties:
* "ti,wl1273"
* "ti,wl1281"
* "ti,wl1283"
+ * "ti,wl1285"
* "ti,wl1801"
* "ti,wl1805"
* "ti,wl1807"
@@ -30,7 +31,6 @@ clock, new bindings (for parsing the clock nodes) have to be added.
Example:
&mmc3 {
- status = "okay";
vmmc-supply = <&wlan_en_reg>;
bus-width = <4>;
cap-power-off-card;
diff --git a/Documentation/devicetree/bindings/net/xilinx_axienet.txt b/Documentation/devicetree/bindings/net/xilinx_axienet.txt
new file mode 100644
index 000000000000..38f9ec076743
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/xilinx_axienet.txt
@@ -0,0 +1,55 @@
+XILINX AXI ETHERNET Device Tree Bindings
+--------------------------------------------------------
+
+Also called AXI 1G/2.5G Ethernet Subsystem, the xilinx axi ethernet IP core
+provides connectivity to an external ethernet PHY supporting different
+interfaces: MII, GMII, RGMII, SGMII, 1000BaseX. It also includes two
+segments of memory for buffering TX and RX, as well as the capability of
+offloading TX/RX checksum calculation off the processor.
+
+Management configuration is done through the AXI interface, while payload is
+sent and received through means of an AXI DMA controller. This driver
+includes the DMA driver code, so this driver is incompatible with AXI DMA
+driver.
+
+For more details about mdio please refer phy.txt file in the same directory.
+
+Required properties:
+- compatible : Must be one of "xlnx,axi-ethernet-1.00.a",
+ "xlnx,axi-ethernet-1.01.a", "xlnx,axi-ethernet-2.01.a"
+- reg : Address and length of the IO space.
+- interrupts : Should be a list of two interrupt, TX and RX.
+- phy-handle : Should point to the external phy device.
+ See ethernet.txt file in the same directory.
+- xlnx,rxmem : Set to allocated memory buffer for Rx/Tx in the hardware
+
+Optional properties:
+- phy-mode : See ethernet.txt
+- xlnx,phy-type : Deprecated, do not use, but still accepted in preference
+ to phy-mode.
+- xlnx,txcsum : 0 or empty for disabling TX checksum offload,
+ 1 to enable partial TX checksum offload,
+ 2 to enable full TX checksum offload
+- xlnx,rxcsum : Same values as xlnx,txcsum but for RX checksum offload
+
+Example:
+ axi_ethernet_eth: ethernet@40c00000 {
+ compatible = "xlnx,axi-ethernet-1.00.a";
+ device_type = "network";
+ interrupt-parent = <&microblaze_0_axi_intc>;
+ interrupts = <2 0>;
+ phy-mode = "mii";
+ reg = <0x40c00000 0x40000>;
+ xlnx,rxcsum = <0x2>;
+ xlnx,rxmem = <0x800>;
+ xlnx,txcsum = <0x2>;
+ phy-handle = <&phy0>;
+ axi_ethernetlite_0_mdio: mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ phy0: phy@0 {
+ device_type = "ethernet-phy";
+ reg = <1>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/nvmem/mtk-efuse.txt b/Documentation/devicetree/bindings/nvmem/mtk-efuse.txt
index 74cf52908a6c..0668c45a156d 100644
--- a/Documentation/devicetree/bindings/nvmem/mtk-efuse.txt
+++ b/Documentation/devicetree/bindings/nvmem/mtk-efuse.txt
@@ -3,7 +3,10 @@
This binding is intended to represent MTK-EFUSE which is found in most Mediatek SOCs.
Required properties:
-- compatible: should be "mediatek,mt8173-efuse" or "mediatek,efuse"
+- compatible: should be
+ "mediatek,mt7622-efuse", "mediatek,efuse": for MT7622
+ "mediatek,mt7623-efuse", "mediatek,efuse": for MT7623
+ "mediatek,mt8173-efuse" or "mediatek,efuse": for MT8173
- reg: Should contain registers location and length
= Data cells =
diff --git a/Documentation/devicetree/bindings/nvmem/mxs-ocotp.txt b/Documentation/devicetree/bindings/nvmem/mxs-ocotp.txt
index daebce9e6b07..372c72fd64dc 100644
--- a/Documentation/devicetree/bindings/nvmem/mxs-ocotp.txt
+++ b/Documentation/devicetree/bindings/nvmem/mxs-ocotp.txt
@@ -21,5 +21,4 @@ Example for i.MX28:
#size-cells = <1>;
reg = <0x8002c000 0x2000>;
clocks = <&clks 25>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt b/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt
index 94aeeeabadd5..1ff02afdc55a 100644
--- a/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt
+++ b/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt
@@ -4,6 +4,7 @@ Required properties:
- compatible: Should be one of the following.
- "rockchip,rk3066a-efuse" - for RK3066a SoCs.
- "rockchip,rk3188-efuse" - for RK3188 SoCs.
+ - "rockchip,rk3228-efuse" - for RK3228 SoCs.
- "rockchip,rk3288-efuse" - for RK3288 SoCs.
- "rockchip,rk3399-efuse" - for RK3399 SoCs.
- reg: Should contain the registers location and exact eFuse size
diff --git a/Documentation/devicetree/bindings/opp/opp.txt b/Documentation/devicetree/bindings/opp/opp.txt
index 63725498bd20..9d733af26be7 100644
--- a/Documentation/devicetree/bindings/opp/opp.txt
+++ b/Documentation/devicetree/bindings/opp/opp.txt
@@ -186,20 +186,20 @@ Example 1: Single cluster Dual-core ARM cortex A9, switch DVFS states together.
compatible = "operating-points-v2";
opp-shared;
- opp@1000000000 {
+ opp-1000000000 {
opp-hz = /bits/ 64 <1000000000>;
opp-microvolt = <975000 970000 985000>;
opp-microamp = <70000>;
clock-latency-ns = <300000>;
opp-suspend;
};
- opp@1100000000 {
+ opp-1100000000 {
opp-hz = /bits/ 64 <1100000000>;
opp-microvolt = <1000000 980000 1010000>;
opp-microamp = <80000>;
clock-latency-ns = <310000>;
};
- opp@1200000000 {
+ opp-1200000000 {
opp-hz = /bits/ 64 <1200000000>;
opp-microvolt = <1025000>;
clock-latency-ns = <290000>;
@@ -265,20 +265,20 @@ independently.
* independently.
*/
- opp@1000000000 {
+ opp-1000000000 {
opp-hz = /bits/ 64 <1000000000>;
opp-microvolt = <975000 970000 985000>;
opp-microamp = <70000>;
clock-latency-ns = <300000>;
opp-suspend;
};
- opp@1100000000 {
+ opp-1100000000 {
opp-hz = /bits/ 64 <1100000000>;
opp-microvolt = <1000000 980000 1010000>;
opp-microamp = <80000>;
clock-latency-ns = <310000>;
};
- opp@1200000000 {
+ opp-1200000000 {
opp-hz = /bits/ 64 <1200000000>;
opp-microvolt = <1025000>;
opp-microamp = <90000;
@@ -341,20 +341,20 @@ DVFS state together.
compatible = "operating-points-v2";
opp-shared;
- opp@1000000000 {
+ opp-1000000000 {
opp-hz = /bits/ 64 <1000000000>;
opp-microvolt = <975000 970000 985000>;
opp-microamp = <70000>;
clock-latency-ns = <300000>;
opp-suspend;
};
- opp@1100000000 {
+ opp-1100000000 {
opp-hz = /bits/ 64 <1100000000>;
opp-microvolt = <1000000 980000 1010000>;
opp-microamp = <80000>;
clock-latency-ns = <310000>;
};
- opp@1200000000 {
+ opp-1200000000 {
opp-hz = /bits/ 64 <1200000000>;
opp-microvolt = <1025000>;
opp-microamp = <90000>;
@@ -367,20 +367,20 @@ DVFS state together.
compatible = "operating-points-v2";
opp-shared;
- opp@1300000000 {
+ opp-1300000000 {
opp-hz = /bits/ 64 <1300000000>;
opp-microvolt = <1050000 1045000 1055000>;
opp-microamp = <95000>;
clock-latency-ns = <400000>;
opp-suspend;
};
- opp@1400000000 {
+ opp-1400000000 {
opp-hz = /bits/ 64 <1400000000>;
opp-microvolt = <1075000>;
opp-microamp = <100000>;
clock-latency-ns = <400000>;
};
- opp@1500000000 {
+ opp-1500000000 {
opp-hz = /bits/ 64 <1500000000>;
opp-microvolt = <1100000 1010000 1110000>;
opp-microamp = <95000>;
@@ -409,7 +409,7 @@ Example 4: Handling multiple regulators
compatible = "operating-points-v2";
opp-shared;
- opp@1000000000 {
+ opp-1000000000 {
opp-hz = /bits/ 64 <1000000000>;
opp-microvolt = <970000>, /* Supply 0 */
<960000>, /* Supply 1 */
@@ -422,7 +422,7 @@ Example 4: Handling multiple regulators
/* OR */
- opp@1000000000 {
+ opp-1000000000 {
opp-hz = /bits/ 64 <1000000000>;
opp-microvolt = <975000 970000 985000>, /* Supply 0 */
<965000 960000 975000>, /* Supply 1 */
@@ -435,7 +435,7 @@ Example 4: Handling multiple regulators
/* OR */
- opp@1000000000 {
+ opp-1000000000 {
opp-hz = /bits/ 64 <1000000000>;
opp-microvolt = <975000 970000 985000>, /* Supply 0 */
<965000 960000 975000>, /* Supply 1 */
@@ -464,10 +464,9 @@ Example 5: opp-supported-hw
opp_table {
compatible = "operating-points-v2";
- status = "okay";
opp-shared;
- opp@600000000 {
+ opp-600000000 {
/*
* Supports all substrate and process versions for 0xF
* cuts, i.e. only first four cuts.
@@ -478,7 +477,7 @@ Example 5: opp-supported-hw
...
};
- opp@800000000 {
+ opp-800000000 {
/*
* Supports:
* - cuts: only one, 6th cut (represented by 6th bit).
@@ -510,7 +509,7 @@ Example 6: opp-microvolt-<name>, opp-microamp-<name>:
compatible = "operating-points-v2";
opp-shared;
- opp@1000000000 {
+ opp-1000000000 {
opp-hz = /bits/ 64 <1000000000>;
opp-microvolt-slow = <915000 900000 925000>;
opp-microvolt-fast = <975000 970000 985000>;
@@ -518,7 +517,7 @@ Example 6: opp-microvolt-<name>, opp-microamp-<name>:
opp-microamp-fast = <71000>;
};
- opp@1200000000 {
+ opp-1200000000 {
opp-hz = /bits/ 64 <1200000000>;
opp-microvolt-slow = <915000 900000 925000>, /* Supply vcc0 */
<925000 910000 935000>; /* Supply vcc1 */
diff --git a/Documentation/devicetree/bindings/pci/83xx-512x-pci.txt b/Documentation/devicetree/bindings/pci/83xx-512x-pci.txt
index 35a465362408..b9165b72473c 100644
--- a/Documentation/devicetree/bindings/pci/83xx-512x-pci.txt
+++ b/Documentation/devicetree/bindings/pci/83xx-512x-pci.txt
@@ -1,11 +1,11 @@
* Freescale 83xx and 512x PCI bridges
-Freescale 83xx and 512x SOCs include the same pci bridge core.
+Freescale 83xx and 512x SOCs include the same PCI bridge core.
83xx/512x specific notes:
- reg: should contain two address length tuples
- The first is for the internal pci bridge registers
- The second is for the pci config space access registers
+ The first is for the internal PCI bridge registers
+ The second is for the PCI config space access registers
Example (MPC8313ERDB)
pci0: pci@e0008500 {
diff --git a/Documentation/devicetree/bindings/pci/aardvark-pci.txt b/Documentation/devicetree/bindings/pci/aardvark-pci.txt
index bbcd9f4c501f..310ef7145c47 100644
--- a/Documentation/devicetree/bindings/pci/aardvark-pci.txt
+++ b/Documentation/devicetree/bindings/pci/aardvark-pci.txt
@@ -33,7 +33,6 @@ Example:
pcie0: pcie@d0070000 {
compatible = "marvell,armada-3700-pcie";
device_type = "pci";
- status = "disabled";
reg = <0 0xd0070000 0 0x20000>;
#address-cells = <3>;
#size-cells = <2>;
diff --git a/Documentation/devicetree/bindings/pci/altera-pcie.txt b/Documentation/devicetree/bindings/pci/altera-pcie.txt
index 2951a6a50704..495880193adc 100644
--- a/Documentation/devicetree/bindings/pci/altera-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/altera-pcie.txt
@@ -7,21 +7,21 @@ Required properties:
"Txs": TX slave port region
"Cra": Control register access region
- interrupt-parent: interrupt source phandle.
-- interrupts: specifies the interrupt source of the parent interrupt controller.
- The format of the interrupt specifier depends on the parent interrupt
- controller.
+- interrupts: specifies the interrupt source of the parent interrupt
+ controller. The format of the interrupt specifier depends
+ on the parent interrupt controller.
- device_type: must be "pci"
- #address-cells: set to <3>
-- #size-cells: set to <2>
+- #size-cells: set to <2>
- #interrupt-cells: set to <1>
-- ranges: describes the translation of addresses for root ports and standard
- PCI regions.
+- ranges: describes the translation of addresses for root ports and
+ standard PCI regions.
- interrupt-map-mask and interrupt-map: standard PCI properties to define the
mapping of the PCIe interface to interrupt numbers.
Optional properties:
-- msi-parent: Link to the hardware entity that serves as the MSI controller for this PCIe
- controller.
+- msi-parent: Link to the hardware entity that serves as the MSI controller
+ for this PCIe controller.
- bus-range: PCI bus numbers covered
Example
@@ -45,5 +45,5 @@ Example
<0 0 0 3 &pcie_0 3>,
<0 0 0 4 &pcie_0 4>;
ranges = <0x82000000 0x00000000 0x00000000 0xc0000000 0x00000000 0x10000000
- 0x82000000 0x00000000 0x10000000 0xd0000000 0x00000000 0x10000000>;
+ 0x82000000 0x00000000 0x10000000 0xd0000000 0x00000000 0x10000000>;
};
diff --git a/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt b/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt
index 5ecaea1e6eee..4e4aee4439ea 100644
--- a/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt
@@ -6,7 +6,7 @@ and thus inherits all the common properties defined in designware-pcie.txt.
Required properties:
- compatible: "axis,artpec6-pcie", "snps,dw-pcie"
- reg: base addresses and lengths of the PCIe controller (DBI),
- the phy controller, and configuration address space.
+ the PHY controller, and configuration address space.
- reg-names: Must include the following entries:
- "dbi"
- "phy"
diff --git a/Documentation/devicetree/bindings/pci/designware-pcie.txt b/Documentation/devicetree/bindings/pci/designware-pcie.txt
index b2480dd38c11..1da7ade3183c 100644
--- a/Documentation/devicetree/bindings/pci/designware-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/designware-pcie.txt
@@ -1,4 +1,4 @@
-* Synopsys Designware PCIe interface
+* Synopsys DesignWare PCIe interface
Required properties:
- compatible: should contain "snps,dw-pcie" to identify the core.
@@ -17,29 +17,27 @@ RC mode:
properties to define the mapping of the PCIe interface to interrupt
numbers.
EP mode:
-- num-ib-windows: number of inbound address translation
- windows
-- num-ob-windows: number of outbound address translation
- windows
+- num-ib-windows: number of inbound address translation windows
+- num-ob-windows: number of outbound address translation windows
Optional properties:
- num-lanes: number of lanes to use (this property should be specified unless
the link is brought already up in BIOS)
-- reset-gpio: gpio pin number of power good signal
+- reset-gpio: GPIO pin number of power good signal
- clocks: Must contain an entry for each entry in clock-names.
See ../clocks/clock-bindings.txt for details.
- clock-names: Must include the following entries:
- "pcie"
- "pcie_bus"
RC mode:
-- num-viewport: number of view ports configured in
- hardware. If a platform does not specify it, the driver assumes 2.
-- bus-range: PCI bus numbers covered (it is recommended
- for new devicetrees to specify this property, to keep backwards
- compatibility a range of 0x00-0xff is assumed if not present)
+- num-viewport: number of view ports configured in hardware. If a platform
+ does not specify it, the driver assumes 2.
+- bus-range: PCI bus numbers covered (it is recommended for new devicetrees
+ to specify this property, to keep backwards compatibility a range of
+ 0x00-0xff is assumed if not present)
+
EP mode:
-- max-functions: maximum number of functions that can be
- configured
+- max-functions: maximum number of functions that can be configured
Example configuration:
diff --git a/Documentation/devicetree/bindings/pci/faraday,ftpci100.txt b/Documentation/devicetree/bindings/pci/faraday,ftpci100.txt
index 35d4a979bb7b..89a84f8aa621 100644
--- a/Documentation/devicetree/bindings/pci/faraday,ftpci100.txt
+++ b/Documentation/devicetree/bindings/pci/faraday,ftpci100.txt
@@ -30,6 +30,13 @@ Mandatory properties:
128MB, 256MB, 512MB, 1GB or 2GB in size. The memory should be marked as
pre-fetchable.
+Optional properties:
+- clocks: when present, this should contain the peripheral clock (PCLK) and the
+ PCI clock (PCICLK). If these are not present, they are assumed to be
+ hard-wired enabled and always on. The PCI clock will be 33 or 66 MHz.
+- clock-names: when present, this should contain "PCLK" for the peripheral
+ clock and "PCICLK" for the PCI-side clock.
+
Mandatory subnodes:
- For "faraday,ftpci100" a node representing the interrupt-controller inside the
host bridge is mandatory. It has the following mandatory properties:
diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt
index e3d5680875b1..7b1e48bf172b 100644
--- a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt
@@ -1,6 +1,6 @@
* Freescale i.MX6 PCIe interface
-This PCIe host controller is based on the Synopsis Designware PCIe IP
+This PCIe host controller is based on the Synopsys DesignWare PCIe IP
and thus inherits all the common properties defined in designware-pcie.txt.
Required properties:
@@ -33,6 +33,10 @@ Optional properties:
- reset-gpio-active-high: If present then the reset sequence using the GPIO
specified in the "reset-gpio" property is reversed (H=reset state,
L=operation state).
+- vpcie-supply: Should specify the regulator in charge of PCIe port power.
+ The regulator will be enabled when initializing the PCIe host and
+ disabled either as part of the init process or when shutting down the
+ host.
Additional required properties for imx6sx-pcie:
- clock names: Must include the following additional entries:
diff --git a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
index a339dbb15493..bdb7ab39d2d7 100644
--- a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
@@ -1,7 +1,7 @@
HiSilicon Hip05 and Hip06 PCIe host bridge DT description
-HiSilicon PCIe host controller is based on Designware PCI core.
-It shares common functions with PCIe Designware core driver and inherits
+HiSilicon PCIe host controller is based on the Synopsys DesignWare PCI core.
+It shares common functions with the PCIe DesignWare core driver and inherits
common properties defined in
Documentation/devicetree/bindings/pci/designware-pci.txt.
@@ -40,7 +40,6 @@ Hip05 Example (note that Hip06 is the same except compatible):
0x0 0 0 2 &mbigen_pcie 2 11
0x0 0 0 3 &mbigen_pcie 3 12
0x0 0 0 4 &mbigen_pcie 4 13>;
- status = "ok";
};
HiSilicon Hip06/Hip07 PCIe host bridge DT (almost-ECAM) description.
@@ -83,5 +82,4 @@ Example:
0x0 0 0 2 &mbigen_pcie0 650 4
0x0 0 0 3 &mbigen_pcie0 650 4
0x0 0 0 4 &mbigen_pcie0 650 4>;
- status = "ok";
};
diff --git a/Documentation/devicetree/bindings/pci/kirin-pcie.txt b/Documentation/devicetree/bindings/pci/kirin-pcie.txt
new file mode 100644
index 000000000000..6e217c63123d
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/kirin-pcie.txt
@@ -0,0 +1,50 @@
+HiSilicon Kirin SoCs PCIe host DT description
+
+Kirin PCIe host controller is based on the Synopsys DesignWare PCI core.
+It shares common functions with the PCIe DesignWare core driver and
+inherits common properties defined in
+Documentation/devicetree/bindings/pci/designware-pci.txt.
+
+Additional properties are described here:
+
+Required properties
+- compatible:
+ "hisilicon,kirin960-pcie" for PCIe of Kirin960 SoC
+- reg: Should contain rc_dbi, apb, phy, config registers location and length.
+- reg-names: Must include the following entries:
+ "dbi": controller configuration registers;
+ "apb": apb Ctrl register defined by Kirin;
+ "phy": apb PHY register defined by Kirin;
+ "config": PCIe configuration space registers.
+- reset-gpios: The GPIO to generate PCIe PERST# assert and deassert signal.
+
+Optional properties:
+
+Example based on kirin960:
+
+ pcie@f4000000 {
+ compatible = "hisilicon,kirin-pcie";
+ reg = <0x0 0xf4000000 0x0 0x1000>, <0x0 0xff3fe000 0x0 0x1000>,
+ <0x0 0xf3f20000 0x0 0x40000>, <0x0 0xF4000000 0 0x2000>;
+ reg-names = "dbi","apb","phy", "config";
+ bus-range = <0x0 0x1>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ ranges = <0x02000000 0x0 0x00000000 0x0 0xf5000000 0x0 0x2000000>;
+ num-lanes = <1>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0xf800 0 0 7>;
+ interrupt-map = <0x0 0 0 1 &gic 0 0 0 282 4>,
+ <0x0 0 0 2 &gic 0 0 0 283 4>,
+ <0x0 0 0 3 &gic 0 0 0 284 4>,
+ <0x0 0 0 4 &gic 0 0 0 285 4>;
+ clocks = <&crg_ctrl HI3660_PCIEPHY_REF>,
+ <&crg_ctrl HI3660_CLK_GATE_PCIEAUX>,
+ <&crg_ctrl HI3660_PCLK_GATE_PCIE_PHY>,
+ <&crg_ctrl HI3660_PCLK_GATE_PCIE_SYS>,
+ <&crg_ctrl HI3660_ACLK_GATE_PCIE>;
+ clock-names = "pcie_phy_ref", "pcie_aux",
+ "pcie_apb_phy", "pcie_apb_sys", "pcie_aclk";
+ reset-gpios = <&gpio11 1 0 >;
+ };
diff --git a/Documentation/devicetree/bindings/pci/layerscape-pci.txt b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
index ee1c72d5162e..c0484da0f20d 100644
--- a/Documentation/devicetree/bindings/pci/layerscape-pci.txt
+++ b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
@@ -15,8 +15,10 @@ Required properties:
- compatible: should contain the platform identifier such as:
"fsl,ls1021a-pcie", "snps,dw-pcie"
"fsl,ls2080a-pcie", "fsl,ls2085a-pcie", "snps,dw-pcie"
+ "fsl,ls2088a-pcie"
+ "fsl,ls1088a-pcie"
"fsl,ls1046a-pcie"
-- reg: base addresses and lengths of the PCIe controller
+- reg: base addresses and lengths of the PCIe controller register blocks.
- interrupts: A list of interrupt outputs of the controller. Must contain an
entry for each entry in the interrupt-names property.
- interrupt-names: Must include the following entries:
diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie.txt b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
new file mode 100644
index 000000000000..3a6ce55dd310
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
@@ -0,0 +1,284 @@
+MediaTek Gen2 PCIe controller
+
+Required properties:
+- compatible: Should contain one of the following strings:
+ "mediatek,mt2701-pcie"
+ "mediatek,mt2712-pcie"
+ "mediatek,mt7622-pcie"
+ "mediatek,mt7623-pcie"
+- device_type: Must be "pci"
+- reg: Base addresses and lengths of the PCIe subsys and root ports.
+- reg-names: Names of the above areas to use during resource lookup.
+- #address-cells: Address representation for root ports (must be 3)
+- #size-cells: Size representation for root ports (must be 2)
+- clocks: Must contain an entry for each entry in clock-names.
+ See ../clocks/clock-bindings.txt for details.
+- clock-names:
+ Mandatory entries:
+ - sys_ckN :transaction layer and data link layer clock
+ Required entries for MT2701/MT7623:
+ - free_ck :for reference clock of PCIe subsys
+ Required entries for MT2712/MT7622:
+ - ahb_ckN :AHB slave interface operating clock for CSR access and RC
+ initiated MMIO access
+ Required entries for MT7622:
+ - axi_ckN :application layer MMIO channel operating clock
+ - aux_ckN :pe2_mac_bridge and pe2_mac_core operating clock when
+ pcie_mac_ck/pcie_pipe_ck is turned off
+ - obff_ckN :OBFF functional block operating clock
+ - pipe_ckN :LTSSM and PHY/MAC layer operating clock
+ where N starting from 0 to one less than the number of root ports.
+- phys: List of PHY specifiers (used by generic PHY framework).
+- phy-names : Must be "pcie-phy0", "pcie-phy1", "pcie-phyN".. based on the
+ number of PHYs as specified in *phys* property.
+- power-domains: A phandle and power domain specifier pair to the power domain
+ which is responsible for collapsing and restoring power to the peripheral.
+- bus-range: Range of bus numbers associated with this controller.
+- ranges: Ranges for the PCI memory and I/O regions.
+
+Required properties for MT7623/MT2701:
+- #interrupt-cells: Size representation for interrupts (must be 1)
+- interrupt-map-mask and interrupt-map: Standard PCI IRQ mapping properties
+ Please refer to the standard PCI bus binding document for a more detailed
+ explanation.
+- resets: Must contain an entry for each entry in reset-names.
+ See ../reset/reset.txt for details.
+- reset-names: Must be "pcie-rst0", "pcie-rst1", "pcie-rstN".. based on the
+ number of root ports.
+
+Required properties for MT2712/MT7622:
+-interrupts: A list of interrupt outputs of the controller, must have one
+ entry for each PCIe port
+
+In addition, the device tree node must have sub-nodes describing each
+PCIe port interface, having the following mandatory properties:
+
+Required properties:
+- device_type: Must be "pci"
+- reg: Only the first four bytes are used to refer to the correct bus number
+ and device number.
+- #address-cells: Must be 3
+- #size-cells: Must be 2
+- #interrupt-cells: Must be 1
+- interrupt-map-mask and interrupt-map: Standard PCI IRQ mapping properties
+ Please refer to the standard PCI bus binding document for a more detailed
+ explanation.
+- ranges: Sub-ranges distributed from the PCIe controller node. An empty
+ property is sufficient.
+- num-lanes: Number of lanes to use for this port.
+
+Examples for MT7623:
+
+ hifsys: syscon@1a000000 {
+ compatible = "mediatek,mt7623-hifsys",
+ "mediatek,mt2701-hifsys",
+ "syscon";
+ reg = <0 0x1a000000 0 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+ pcie: pcie-controller@1a140000 {
+ compatible = "mediatek,mt7623-pcie";
+ device_type = "pci";
+ reg = <0 0x1a140000 0 0x1000>, /* PCIe shared registers */
+ <0 0x1a142000 0 0x1000>, /* Port0 registers */
+ <0 0x1a143000 0 0x1000>, /* Port1 registers */
+ <0 0x1a144000 0 0x1000>; /* Port2 registers */
+ reg-names = "subsys", "port0", "port1", "port2";
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0xf800 0 0 0>;
+ interrupt-map = <0x0000 0 0 0 &sysirq GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>,
+ <0x0800 0 0 0 &sysirq GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>,
+ <0x1000 0 0 0 &sysirq GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&topckgen CLK_TOP_ETHIF_SEL>,
+ <&hifsys CLK_HIFSYS_PCIE0>,
+ <&hifsys CLK_HIFSYS_PCIE1>,
+ <&hifsys CLK_HIFSYS_PCIE2>;
+ clock-names = "free_ck", "sys_ck0", "sys_ck1", "sys_ck2";
+ resets = <&hifsys MT2701_HIFSYS_PCIE0_RST>,
+ <&hifsys MT2701_HIFSYS_PCIE1_RST>,
+ <&hifsys MT2701_HIFSYS_PCIE2_RST>;
+ reset-names = "pcie-rst0", "pcie-rst1", "pcie-rst2";
+ phys = <&pcie0_phy PHY_TYPE_PCIE>, <&pcie1_phy PHY_TYPE_PCIE>,
+ <&pcie2_phy PHY_TYPE_PCIE>;
+ phy-names = "pcie-phy0", "pcie-phy1", "pcie-phy2";
+ power-domains = <&scpsys MT2701_POWER_DOMAIN_HIF>;
+ bus-range = <0x00 0xff>;
+ ranges = <0x81000000 0 0x1a160000 0 0x1a160000 0 0x00010000 /* I/O space */
+ 0x83000000 0 0x60000000 0 0x60000000 0 0x10000000>; /* memory space */
+
+ pcie@0,0 {
+ device_type = "pci";
+ reg = <0x0000 0 0 0 0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 0 0>;
+ interrupt-map = <0 0 0 0 &sysirq GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>;
+ ranges;
+ num-lanes = <1>;
+ };
+
+ pcie@1,0 {
+ device_type = "pci";
+ reg = <0x0800 0 0 0 0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 0 0>;
+ interrupt-map = <0 0 0 0 &sysirq GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>;
+ ranges;
+ num-lanes = <1>;
+ };
+
+ pcie@2,0 {
+ device_type = "pci";
+ reg = <0x1000 0 0 0 0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 0 0>;
+ interrupt-map = <0 0 0 0 &sysirq GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>;
+ ranges;
+ num-lanes = <1>;
+ };
+ };
+
+Examples for MT2712:
+ pcie: pcie@11700000 {
+ compatible = "mediatek,mt2712-pcie";
+ device_type = "pci";
+ reg = <0 0x11700000 0 0x1000>,
+ <0 0x112ff000 0 0x1000>;
+ reg-names = "port0", "port1";
+ #address-cells = <3>;
+ #size-cells = <2>;
+ interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&topckgen CLK_TOP_PE2_MAC_P0_SEL>,
+ <&topckgen CLK_TOP_PE2_MAC_P1_SEL>,
+ <&pericfg CLK_PERI_PCIE0>,
+ <&pericfg CLK_PERI_PCIE1>;
+ clock-names = "sys_ck0", "sys_ck1", "ahb_ck0", "ahb_ck1";
+ phys = <&pcie0_phy PHY_TYPE_PCIE>, <&pcie1_phy PHY_TYPE_PCIE>;
+ phy-names = "pcie-phy0", "pcie-phy1";
+ bus-range = <0x00 0xff>;
+ ranges = <0x82000000 0 0x20000000 0x0 0x20000000 0 0x10000000>;
+
+ pcie0: pcie@0,0 {
+ device_type = "pci";
+ reg = <0x0000 0 0 0 0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+ ranges;
+ num-lanes = <1>;
+ interrupt-map-mask = <0 0 0 7>;
+ interrupt-map = <0 0 0 1 &pcie_intc0 0>,
+ <0 0 0 2 &pcie_intc0 1>,
+ <0 0 0 3 &pcie_intc0 2>,
+ <0 0 0 4 &pcie_intc0 3>;
+ pcie_intc0: interrupt-controller {
+ interrupt-controller;
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ };
+ };
+
+ pcie1: pcie@1,0 {
+ device_type = "pci";
+ reg = <0x0800 0 0 0 0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+ ranges;
+ num-lanes = <1>;
+ interrupt-map-mask = <0 0 0 7>;
+ interrupt-map = <0 0 0 1 &pcie_intc1 0>,
+ <0 0 0 2 &pcie_intc1 1>,
+ <0 0 0 3 &pcie_intc1 2>,
+ <0 0 0 4 &pcie_intc1 3>;
+ pcie_intc1: interrupt-controller {
+ interrupt-controller;
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ };
+ };
+ };
+
+Examples for MT7622:
+ pcie: pcie@1a140000 {
+ compatible = "mediatek,mt7622-pcie";
+ device_type = "pci";
+ reg = <0 0x1a140000 0 0x1000>,
+ <0 0x1a143000 0 0x1000>,
+ <0 0x1a145000 0 0x1000>;
+ reg-names = "subsys", "port0", "port1";
+ #address-cells = <3>;
+ #size-cells = <2>;
+ interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&pciesys CLK_PCIE_P0_MAC_EN>,
+ <&pciesys CLK_PCIE_P1_MAC_EN>,
+ <&pciesys CLK_PCIE_P0_AHB_EN>,
+ <&pciesys CLK_PCIE_P1_AHB_EN>,
+ <&pciesys CLK_PCIE_P0_AUX_EN>,
+ <&pciesys CLK_PCIE_P1_AUX_EN>,
+ <&pciesys CLK_PCIE_P0_AXI_EN>,
+ <&pciesys CLK_PCIE_P1_AXI_EN>,
+ <&pciesys CLK_PCIE_P0_OBFF_EN>,
+ <&pciesys CLK_PCIE_P1_OBFF_EN>,
+ <&pciesys CLK_PCIE_P0_PIPE_EN>,
+ <&pciesys CLK_PCIE_P1_PIPE_EN>;
+ clock-names = "sys_ck0", "sys_ck1", "ahb_ck0", "ahb_ck1",
+ "aux_ck0", "aux_ck1", "axi_ck0", "axi_ck1",
+ "obff_ck0", "obff_ck1", "pipe_ck0", "pipe_ck1";
+ phys = <&pcie0_phy PHY_TYPE_PCIE>, <&pcie1_phy PHY_TYPE_PCIE>;
+ phy-names = "pcie-phy0", "pcie-phy1";
+ power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
+ bus-range = <0x00 0xff>;
+ ranges = <0x82000000 0 0x20000000 0x0 0x20000000 0 0x10000000>;
+
+ pcie0: pcie@0,0 {
+ device_type = "pci";
+ reg = <0x0000 0 0 0 0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+ ranges;
+ num-lanes = <1>;
+ interrupt-map-mask = <0 0 0 7>;
+ interrupt-map = <0 0 0 1 &pcie_intc0 0>,
+ <0 0 0 2 &pcie_intc0 1>,
+ <0 0 0 3 &pcie_intc0 2>,
+ <0 0 0 4 &pcie_intc0 3>;
+ pcie_intc0: interrupt-controller {
+ interrupt-controller;
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ };
+ };
+
+ pcie1: pcie@1,0 {
+ device_type = "pci";
+ reg = <0x0800 0 0 0 0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+ ranges;
+ num-lanes = <1>;
+ interrupt-map-mask = <0 0 0 7>;
+ interrupt-map = <0 0 0 1 &pcie_intc1 0>,
+ <0 0 0 2 &pcie_intc1 1>,
+ <0 0 0 3 &pcie_intc1 2>,
+ <0 0 0 4 &pcie_intc1 3>;
+ pcie_intc1: interrupt-controller {
+ interrupt-controller;
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/pci/mvebu-pci.txt b/Documentation/devicetree/bindings/pci/mvebu-pci.txt
index 2de6f65ecfb1..6173af6885f8 100644
--- a/Documentation/devicetree/bindings/pci/mvebu-pci.txt
+++ b/Documentation/devicetree/bindings/pci/mvebu-pci.txt
@@ -77,7 +77,7 @@ and the following optional properties:
- marvell,pcie-lane: the physical PCIe lane number, for ports having
multiple lanes. If this property is not found, we assume that the
value is 0.
-- reset-gpios: optional gpio to PERST#
+- reset-gpios: optional GPIO to PERST#
- reset-delay-us: delay in us to wait after reset de-assertion, if not
specified will default to 100ms, as required by the PCIe specification.
@@ -85,7 +85,6 @@ Example:
pcie-controller {
compatible = "marvell,armada-xp-pcie";
- status = "disabled";
device_type = "pci";
#address-cells = <3>;
@@ -147,7 +146,6 @@ pcie-controller {
/* wait 20ms for device settle after reset deassertion */
reset-delay-us = <20000>;
clocks = <&gateclk 5>;
- status = "disabled";
};
pcie@2,0 {
@@ -164,7 +162,6 @@ pcie-controller {
marvell,pcie-port = <0>;
marvell,pcie-lane = <1>;
clocks = <&gateclk 6>;
- status = "disabled";
};
pcie@3,0 {
@@ -181,7 +178,6 @@ pcie-controller {
marvell,pcie-port = <0>;
marvell,pcie-lane = <2>;
clocks = <&gateclk 7>;
- status = "disabled";
};
pcie@4,0 {
@@ -198,7 +194,6 @@ pcie-controller {
marvell,pcie-port = <0>;
marvell,pcie-lane = <3>;
clocks = <&gateclk 8>;
- status = "disabled";
};
pcie@5,0 {
@@ -215,7 +210,6 @@ pcie-controller {
marvell,pcie-port = <1>;
marvell,pcie-lane = <0>;
clocks = <&gateclk 9>;
- status = "disabled";
};
pcie@6,0 {
@@ -232,7 +226,6 @@ pcie-controller {
marvell,pcie-port = <1>;
marvell,pcie-lane = <1>;
clocks = <&gateclk 10>;
- status = "disabled";
};
pcie@7,0 {
@@ -249,7 +242,6 @@ pcie-controller {
marvell,pcie-port = <1>;
marvell,pcie-lane = <2>;
clocks = <&gateclk 11>;
- status = "disabled";
};
pcie@8,0 {
@@ -266,7 +258,6 @@ pcie-controller {
marvell,pcie-port = <1>;
marvell,pcie-lane = <3>;
clocks = <&gateclk 12>;
- status = "disabled";
};
pcie@9,0 {
@@ -283,10 +274,9 @@ pcie-controller {
marvell,pcie-port = <2>;
marvell,pcie-lane = <0>;
clocks = <&gateclk 26>;
- status = "disabled";
};
- pcie@10,0 {
+ pcie@a,0 {
device_type = "pci";
assigned-addresses = <0x82005000 0 0x82000 0 0x2000>;
reg = <0x5000 0 0 0 0>;
@@ -300,6 +290,5 @@ pcie-controller {
marvell,pcie-port = <3>;
marvell,pcie-lane = <0>;
clocks = <&gateclk 27>;
- status = "disabled";
};
};
diff --git a/Documentation/devicetree/bindings/pci/pci-armada8k.txt b/Documentation/devicetree/bindings/pci/pci-armada8k.txt
index 598533a57d79..c1e4c3d10a74 100644
--- a/Documentation/devicetree/bindings/pci/pci-armada8k.txt
+++ b/Documentation/devicetree/bindings/pci/pci-armada8k.txt
@@ -1,6 +1,6 @@
* Marvell Armada 7K/8K PCIe interface
-This PCIe host controller is based on the Synopsis Designware PCIe IP
+This PCIe host controller is based on the Synopsys DesignWare PCIe IP
and thus inherits all the common properties defined in designware-pcie.txt.
Required properties:
@@ -34,5 +34,4 @@ Example:
interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
num-lanes = <1>;
clocks = <&cpm_syscon0 1 13>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/pci/pci-keystone.txt b/Documentation/devicetree/bindings/pci/pci-keystone.txt
index d08a4d51108f..7e05487544ed 100644
--- a/Documentation/devicetree/bindings/pci/pci-keystone.txt
+++ b/Documentation/devicetree/bindings/pci/pci-keystone.txt
@@ -1,12 +1,12 @@
TI Keystone PCIe interface
-Keystone PCI host Controller is based on Designware PCI h/w version 3.65.
-It shares common functions with PCIe Designware core driver and inherit
-common properties defined in
+Keystone PCI host Controller is based on the Synopsys DesignWare PCI
+hardware version 3.65. It shares common functions with the PCIe DesignWare
+core driver and inherits common properties defined in
Documentation/devicetree/bindings/pci/designware-pci.txt
Please refer to Documentation/devicetree/bindings/pci/designware-pci.txt
-for the details of Designware DT bindings. Additional properties are
+for the details of DesignWare DT bindings. Additional properties are
described here as well as properties that are not applicable.
Required Properties:-
@@ -52,13 +52,12 @@ pcie_intc: Interrupt controller device node for Legacy IRQ chip
};
Optional properties:-
- phys: phandle to Generic Keystone SerDes phy for PCI
- phy-names: name of the Generic Keystine SerDes phy for PCI
+ phys: phandle to generic Keystone SerDes PHY for PCI
+ phy-names: name of the generic Keystone SerDes PHY for PCI
- If boot loader already does PCI link establishment, then phys and
phy-names shouldn't be present.
interrupts: platform interrupt for error interrupts.
-Designware DT Properties not applicable for Keystone PCI
+DesignWare DT Properties not applicable for Keystone PCI
1. pcie_bus clock-names not used. Instead, a phandle to phys is used.
-
diff --git a/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt b/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
index 07a75094c5a8..3d038638612b 100644
--- a/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
+++ b/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
@@ -6,11 +6,14 @@ AHB. There is one bridge instance per USB port connected to the internal
OHCI and EHCI controllers.
Required properties:
-- compatible: "renesas,pci-r8a7790" for the R8A7790 SoC;
+- compatible: "renesas,pci-r8a7743" for the R8A7743 SoC;
+ "renesas,pci-r8a7745" for the R8A7745 SoC;
+ "renesas,pci-r8a7790" for the R8A7790 SoC;
"renesas,pci-r8a7791" for the R8A7791 SoC;
"renesas,pci-r8a7793" for the R8A7793 SoC;
"renesas,pci-r8a7794" for the R8A7794 SoC;
- "renesas,pci-rcar-gen2" for a generic R-Car Gen2 compatible device
+ "renesas,pci-rcar-gen2" for a generic R-Car Gen2 or
+ RZ/G1 compatible device.
When compatible with the generic version, nodes must list the
diff --git a/Documentation/devicetree/bindings/pci/pci.txt b/Documentation/devicetree/bindings/pci/pci.txt
index 50f9e2ca5b13..c77981c5dd18 100644
--- a/Documentation/devicetree/bindings/pci/pci.txt
+++ b/Documentation/devicetree/bindings/pci/pci.txt
@@ -1,12 +1,12 @@
PCI bus bridges have standardized Device Tree bindings:
PCI Bus Binding to: IEEE Std 1275-1994
-http://www.firmware.org/1275/bindings/pci/pci2_1.pdf
+http://www.devicetree.org/open-firmware/bindings/pci/pci2_1.pdf
And for the interrupt mapping part:
Open Firmware Recommended Practice: Interrupt Mapping
-http://www.firmware.org/1275/practice/imap/imap0_9d.pdf
+http://www.devicetree.org/open-firmware/practice/imap/imap0_9d.pdf
Additionally to the properties specified in the above standards a host bridge
driver implementation may support the following properties:
diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.txt b/Documentation/devicetree/bindings/pci/qcom,pcie.txt
index e15f9b19901f..3c9d321b3d3b 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie.txt
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie.txt
@@ -8,6 +8,8 @@
- "qcom,pcie-apq8064" for apq8064
- "qcom,pcie-apq8084" for apq8084
- "qcom,pcie-msm8996" for msm8996 or apq8096
+ - "qcom,pcie-ipq4019" for ipq4019
+ - "qcom,pcie-ipq8074" for ipq8074
- reg:
Usage: required
@@ -19,7 +21,7 @@
Value type: <stringlist>
Definition: Must include the following entries
- "parf" Qualcomm specific registers
- - "dbi" Designware PCIe registers
+ - "dbi" DesignWare PCIe registers
- "elbi" External local bus interface registers
- "config" PCIe configuration space
@@ -87,7 +89,7 @@
- "core" Clocks the pcie hw block
- "phy" Clocks the pcie PHY block
- clock-names:
- Usage: required for apq8084
+ Usage: required for apq8084/ipq4019
Value type: <stringlist>
Definition: Should contain the following entries
- "aux" Auxiliary (AUX) clock
@@ -104,6 +106,16 @@
- "bus_master" Master AXI clock
- "bus_slave" Slave AXI clock
+- clock-names:
+ Usage: required for ipq8074
+ Value type: <stringlist>
+ Definition: Should contain the following entries
+ - "iface" PCIe to SysNOC BIU clock
+ - "axi_m" AXI Master clock
+ - "axi_s" AXI Slave clock
+ - "ahb" AHB clock
+ - "aux" Auxiliary clock
+
- resets:
Usage: required
Value type: <prop-encoded-array>
@@ -126,6 +138,35 @@
Definition: Should contain the following entries
- "core" Core reset
+- reset-names:
+ Usage: required for ipq/apq8064
+ Value type: <stringlist>
+ Definition: Should contain the following entries
+ - "axi_m" AXI master reset
+ - "axi_s" AXI slave reset
+ - "pipe" PIPE reset
+ - "axi_m_vmid" VMID reset
+ - "axi_s_xpu" XPU reset
+ - "parf" PARF reset
+ - "phy" PHY reset
+ - "axi_m_sticky" AXI sticky reset
+ - "pipe_sticky" PIPE sticky reset
+ - "pwr" PWR reset
+ - "ahb" AHB reset
+ - "phy_ahb" PHY AHB reset
+
+- reset-names:
+ Usage: required for ipq8074
+ Value type: <stringlist>
+ Definition: Should contain the following entries
+ - "pipe" PIPE reset
+ - "sleep" Sleep reset
+ - "sticky" Core Sticky reset
+ - "axi_m" AXI Master reset
+ - "axi_s" AXI Slave reset
+ - "ahb" AHB Reset
+ - "axi_m_sticky" AXI Master Sticky reset
+
- power-domains:
Usage: required for apq8084 and msm8996/apq8096
Value type: <prop-encoded-array>
@@ -162,7 +203,7 @@
- <name>-gpios:
Usage: optional
Value type: <prop-encoded-array>
- Definition: List of phandle and gpio specifier pairs. Should contain
+ Definition: List of phandle and GPIO specifier pairs. Should contain
- "perst-gpios" PCIe endpoint reset signal line
- "wake-gpios" PCIe endpoint wake signal line
diff --git a/Documentation/devicetree/bindings/pci/ralink,rt3883-pci.txt b/Documentation/devicetree/bindings/pci/ralink,rt3883-pci.txt
index 8e0a1eb0acbb..a04ab1b76211 100644
--- a/Documentation/devicetree/bindings/pci/ralink,rt3883-pci.txt
+++ b/Documentation/devicetree/bindings/pci/ralink,rt3883-pci.txt
@@ -71,7 +71,7 @@
- interrupt-map: standard PCI properties to define the mapping of the
PCI interface to interrupt numbers.
- The PCI host bridge node migh have additional sub-nodes representing
+ The PCI host bridge node might have additional sub-nodes representing
the onboard PCI devices/PCI slots. Each such sub-node must have the
following mandatory properties:
diff --git a/Documentation/devicetree/bindings/pci/rcar-pci.txt b/Documentation/devicetree/bindings/pci/rcar-pci.txt
index 34712d6fd253..76ba3a61d1a3 100644
--- a/Documentation/devicetree/bindings/pci/rcar-pci.txt
+++ b/Documentation/devicetree/bindings/pci/rcar-pci.txt
@@ -1,4 +1,4 @@
-* Renesas RCar PCIe interface
+* Renesas R-Car PCIe interface
Required properties:
compatible: "renesas,pcie-r8a7779" for the R8A7779 SoC;
@@ -14,7 +14,7 @@ compatible: "renesas,pcie-r8a7779" for the R8A7779 SoC;
SoC-specific version corresponding to the platform first
followed by the generic version.
-- reg: base address and length of the pcie controller registers.
+- reg: base address and length of the PCIe controller registers.
- #address-cells: set to <3>
- #size-cells: set to <2>
- bus-range: PCI bus numbers covered
@@ -25,15 +25,14 @@ compatible: "renesas,pcie-r8a7779" for the R8A7779 SoC;
source for hardware related interrupts (e.g. link speed change).
- #interrupt-cells: set to <1>
- interrupt-map-mask and interrupt-map: standard PCI properties
- to define the mapping of the PCIe interface to interrupt
- numbers.
+ to define the mapping of the PCIe interface to interrupt numbers.
- clocks: from common clock binding: clock specifiers for the PCIe controller
and PCIe bus clocks.
- clock-names: from common clock binding: should be "pcie" and "pcie_bus".
Example:
-SoC specific DT Entry:
+SoC-specific DT Entry:
pcie: pcie@fe000000 {
compatible = "renesas,pcie-r8a7791", "renesas,pcie-rcar-gen2";
@@ -54,5 +53,4 @@ SoC specific DT Entry:
interrupt-map = <0 0 0 0 &gic 0 116 4>;
clocks = <&mstp3_clks R8A7791_CLK_PCIE>, <&pcie_bus_clk>;
clock-names = "pcie", "pcie_bus";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/pci/rockchip-pcie.txt b/Documentation/devicetree/bindings/pci/rockchip-pcie.txt
index 1453a734c2f5..af34c65773fd 100644
--- a/Documentation/devicetree/bindings/pci/rockchip-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/rockchip-pcie.txt
@@ -19,8 +19,6 @@ Required properties:
- "pm"
- msi-map: Maps a Requester ID to an MSI controller and associated
msi-specifier data. See ./pci-msi.txt
-- phys: From PHY bindings: Phandle for the Generic PHY for PCIe.
-- phy-names: MUST be "pcie-phy".
- interrupts: Three interrupt entries must be specified.
- interrupt-names: Must include the following names
- "sys"
@@ -42,11 +40,24 @@ Required properties:
interrupt source. The value must be 1.
- interrupt-map-mask and interrupt-map: standard PCI properties
+Required properties for legacy PHY model (deprecated):
+- phys: From PHY bindings: Phandle for the Generic PHY for PCIe.
+- phy-names: MUST be "pcie-phy".
+
+Required properties for per-lane PHY model (preferred):
+- phys: Must contain an phandle to a PHY for each entry in phy-names.
+- phy-names: Must include 4 entries for all 4 lanes even if some of
+ them won't be used for your cases. Entries are of the form "pcie-phy-N":
+ where N ranges from 0 to 3.
+ (see example below and you MUST also refer to ../phy/rockchip-pcie-phy.txt
+ for changing the #phy-cells of phy node to support it)
+
Optional Property:
- aspm-no-l0s: RC won't support ASPM L0s. This property is needed if
using 24MHz OSC for RC's PHY.
-- ep-gpios: contain the entry for pre-reset gpio
+- ep-gpios: contain the entry for pre-reset GPIO
- num-lanes: number of lanes to use
+- vpcie12v-supply: The phandle to the 12v regulator to use for PCIe.
- vpcie3v3-supply: The phandle to the 3.3v regulator to use for PCIe.
- vpcie1v8-supply: The phandle to the 1.8v regulator to use for PCIe.
- vpcie0v9-supply: The phandle to the 0.9v regulator to use for PCIe.
@@ -95,6 +106,7 @@ pcie0: pcie@f8000000 {
<&cru SRST_PCIE_PM>, <&cru SRST_P_PCIE>, <&cru SRST_A_PCIE>;
reset-names = "core", "mgmt", "mgmt-sticky", "pipe",
"pm", "pclk", "aclk";
+ /* deprecated legacy PHY model */
phys = <&pcie_phy>;
phy-names = "pcie-phy";
pinctrl-names = "default";
@@ -111,3 +123,13 @@ pcie0: pcie@f8000000 {
#interrupt-cells = <1>;
};
};
+
+pcie0: pcie@f8000000 {
+ ...
+
+ /* preferred per-lane PHY model */
+ phys = <&pcie_phy 0>, <&pcie_phy 1>, <&pcie_phy 2>, <&pcie_phy 3>;
+ phy-names = "pcie-phy-0", "pcie-phy-1", "pcie-phy-2", "pcie-phy-3";
+
+ ...
+};
diff --git a/Documentation/devicetree/bindings/pci/samsung,exynos5440-pcie.txt b/Documentation/devicetree/bindings/pci/samsung,exynos5440-pcie.txt
index 7d3b09474657..34a11bfbfb60 100644
--- a/Documentation/devicetree/bindings/pci/samsung,exynos5440-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/samsung,exynos5440-pcie.txt
@@ -1,29 +1,29 @@
* Samsung Exynos 5440 PCIe interface
-This PCIe host controller is based on the Synopsis Designware PCIe IP
+This PCIe host controller is based on the Synopsys DesignWare PCIe IP
and thus inherits all the common properties defined in designware-pcie.txt.
Required properties:
- compatible: "samsung,exynos5440-pcie"
-- reg: base addresses and lengths of the pcie controller,
- the phy controller, additional register for the phy controller.
- (Registers for the phy controller are DEPRECATED.
+- reg: base addresses and lengths of the PCIe controller,
+ the PHY controller, additional register for the PHY controller.
+ (Registers for the PHY controller are DEPRECATED.
Use the PHY framework.)
- reg-names : First name should be set to "elbi".
- And use the "config" instead of getting the confgiruation address space
+ And use the "config" instead of getting the configuration address space
from "ranges".
- NOTE: When use the "config" property, reg-names must be set.
+ NOTE: When using the "config" property, reg-names must be set.
- interrupts: A list of interrupt outputs for level interrupt,
pulse interrupt, special interrupt.
-- phys: From PHY binding. Phandle for the Generic PHY.
+- phys: From PHY binding. Phandle for the generic PHY.
Refer to Documentation/devicetree/bindings/phy/samsung-phy.txt
-Other common properties refer to
- Documentation/devicetree/binding/pci/designware-pcie.txt
+For other common properties, refer to
+ Documentation/devicetree/bindings/pci/designware-pcie.txt
Example:
-SoC specific DT Entry:
+SoC-specific DT Entry:
pcie@290000 {
compatible = "samsung,exynos5440-pcie", "snps,dw-pcie";
@@ -83,7 +83,7 @@ With using PHY framework:
...
};
-Board specific DT Entry:
+Board-specific DT Entry:
pcie@290000 {
reset-gpio = <&pin_ctrl 5 0>;
diff --git a/Documentation/devicetree/bindings/pci/spear13xx-pcie.txt b/Documentation/devicetree/bindings/pci/spear13xx-pcie.txt
index 49ea76da7718..d5a14f5dad46 100644
--- a/Documentation/devicetree/bindings/pci/spear13xx-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/spear13xx-pcie.txt
@@ -1,12 +1,12 @@
SPEAr13XX PCIe DT detail:
================================
-SPEAr13XX uses synopsis designware PCIe controller and ST MiPHY as phy
+SPEAr13XX uses the Synopsys DesignWare PCIe controller and ST MiPHY as PHY
controller.
Required properties:
-- compatible : should be "st,spear1340-pcie", "snps,dw-pcie".
-- phys : phandle to phy node associated with pcie controller
+- compatible : should be "st,spear1340-pcie", "snps,dw-pcie".
+- phys : phandle to PHY node associated with PCIe controller
- phy-names : must be "pcie-phy"
- All other definitions as per generic PCI bindings
diff --git a/Documentation/devicetree/bindings/pci/tango-pcie.txt b/Documentation/devicetree/bindings/pci/tango-pcie.txt
new file mode 100644
index 000000000000..244683836a79
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/tango-pcie.txt
@@ -0,0 +1,29 @@
+Sigma Designs Tango PCIe controller
+
+Required properties:
+
+- compatible: "sigma,smp8759-pcie"
+- reg: address/size of PCI configuration space, address/size of register area
+- bus-range: defined by size of PCI configuration space
+- device_type: "pci"
+- #size-cells: <2>
+- #address-cells: <3>
+- msi-controller
+- ranges: translation from system to bus addresses
+- interrupts: spec for misc interrupts, spec for MSI
+
+Example:
+
+ pcie@2e000 {
+ compatible = "sigma,smp8759-pcie";
+ reg = <0x50000000 0x400000>, <0x2e000 0x100>;
+ bus-range = <0 3>;
+ device_type = "pci";
+ #size-cells = <2>;
+ #address-cells = <3>;
+ msi-controller;
+ ranges = <0x02000000 0x0 0x00400000 0x50400000 0x0 0x3c00000>;
+ interrupts =
+ <54 IRQ_TYPE_LEVEL_HIGH>, /* misc interrupts */
+ <55 IRQ_TYPE_LEVEL_HIGH>; /* MSI */
+ };
diff --git a/Documentation/devicetree/bindings/pci/ti-pci.txt b/Documentation/devicetree/bindings/pci/ti-pci.txt
index 6a07c96227e0..7f7af3044016 100644
--- a/Documentation/devicetree/bindings/pci/ti-pci.txt
+++ b/Documentation/devicetree/bindings/pci/ti-pci.txt
@@ -1,6 +1,6 @@
TI PCI Controllers
-PCIe Designware Controller
+PCIe DesignWare Controller
- compatible: Should be "ti,dra7-pcie" for RC
Should be "ti,dra7-pcie-ep" for EP
- phys : list of PHY specifiers (used by generic PHY framework)
@@ -13,7 +13,7 @@ PCIe Designware Controller
HOST MODE
=========
- reg : Two register ranges as listed in the reg-names property
- - reg-names : The first entry must be "ti-conf" for the TI specific registers
+ - reg-names : The first entry must be "ti-conf" for the TI-specific registers
The second entry must be "rc-dbics" for the DesignWare PCIe
registers
The third entry must be "config" for the PCIe configuration space
@@ -30,7 +30,7 @@ HOST MODE
DEVICE MODE
===========
- reg : Four register ranges as listed in the reg-names property
- - reg-names : "ti-conf" for the TI specific registers
+ - reg-names : "ti-conf" for the TI-specific registers
"ep_dbics" for the standard configuration registers as
they are locally accessed within the DIF CS space
"ep_dbics2" for the standard configuration registers as
@@ -46,7 +46,7 @@ DEVICE MODE
access.
Optional Property:
- - gpios : Should be added if a gpio line is required to drive PERST# line
+ - gpios : Should be added if a GPIO line is required to drive PERST# line
NOTE: Two DT nodes may be added for each PCI controller; one for host
mode and another for device mode. So in order for PCI to
diff --git a/Documentation/devicetree/bindings/pci/versatile.txt b/Documentation/devicetree/bindings/pci/versatile.txt
index ebd1e7d0403e..0a702b13d2ac 100644
--- a/Documentation/devicetree/bindings/pci/versatile.txt
+++ b/Documentation/devicetree/bindings/pci/versatile.txt
@@ -5,7 +5,7 @@ PCI host controller found on the ARM Versatile PB board's FPGA.
Required properties:
- compatible: should contain "arm,versatile-pci" to identify the Versatile PCI
controller.
-- reg: base addresses and lengths of the pci controller. There must be 3
+- reg: base addresses and lengths of the PCI controller. There must be 3
entries:
- Versatile-specific registers
- Self Config space
diff --git a/Documentation/devicetree/bindings/pci/xgene-pci-msi.txt b/Documentation/devicetree/bindings/pci/xgene-pci-msi.txt
index 36d881c8e6d4..85d9b95234f7 100644
--- a/Documentation/devicetree/bindings/pci/xgene-pci-msi.txt
+++ b/Documentation/devicetree/bindings/pci/xgene-pci-msi.txt
@@ -4,7 +4,7 @@ Required properties:
- compatible: should be "apm,xgene1-msi" to identify
X-Gene v1 PCIe MSI controller block.
-- msi-controller: indicates that this is X-Gene v1 PCIe MSI controller node
+- msi-controller: indicates that this is an X-Gene v1 PCIe MSI controller node
- reg: physical base address (0x79000000) and length (0x900000) for controller
registers. These registers include the MSI termination address and data
registers as well as the MSI interrupt status registers.
@@ -13,7 +13,8 @@ Required properties:
interrupt number 0x10 to 0x1f.
- interrupt-names: not required
-Each PCIe node needs to have property msi-parent that points to msi controller node
+Each PCIe node needs to have property msi-parent that points to an MSI
+controller node
Examples:
@@ -44,7 +45,6 @@ SoC DTSI:
+ PCIe controller node with msi-parent property pointing to MSI node:
pcie0: pcie@1f2b0000 {
- status = "disabled";
device_type = "pci";
compatible = "apm,xgene-storm-pcie", "apm,xgene-pcie";
#interrupt-cells = <1>;
diff --git a/Documentation/devicetree/bindings/pci/xgene-pci.txt b/Documentation/devicetree/bindings/pci/xgene-pci.txt
index 1070b068c7c6..6fd2decfa66c 100644
--- a/Documentation/devicetree/bindings/pci/xgene-pci.txt
+++ b/Documentation/devicetree/bindings/pci/xgene-pci.txt
@@ -8,7 +8,7 @@ Required properties:
property.
- reg-names: Must include the following entries:
"csr": controller configuration registers.
- "cfg": pcie configuration space registers.
+ "cfg": PCIe configuration space registers.
- #address-cells: set to <3>
- #size-cells: set to <2>
- ranges: ranges for the outbound memory, I/O regions.
@@ -21,11 +21,11 @@ Required properties:
Optional properties:
- status: Either "ok" or "disabled".
-- dma-coherent: Present if dma operations are coherent
+- dma-coherent: Present if DMA operations are coherent
Example:
-SoC specific DT Entry:
+SoC-specific DT Entry:
pcie0: pcie@1f2b0000 {
status = "disabled";
@@ -51,7 +51,7 @@ SoC specific DT Entry:
};
-Board specific DT Entry:
+Board-specific DT Entry:
&pcie0 {
status = "ok";
};
diff --git a/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt b/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt
index 3259798a1192..01bf7fdf4c19 100644
--- a/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt
@@ -15,9 +15,9 @@ Required properties:
- device_type: must be "pci"
- interrupts: Should contain NWL PCIe interrupt
- interrupt-names: Must include the following entries:
- "msi1, msi0": interrupt asserted when MSI is received
+ "msi1, msi0": interrupt asserted when an MSI is received
"intx": interrupt asserted when a legacy interrupt is received
- "misc": interrupt asserted when miscellaneous is received
+ "misc": interrupt asserted when miscellaneous interrupt is received
- interrupt-map-mask and interrupt-map: standard PCI properties to define the
mapping of the PCI interface to interrupt numbers.
- ranges: ranges for the PCI memory regions (I/O space region is not
@@ -26,7 +26,8 @@ Required properties:
detailed explanation
- msi-controller: indicates that this is MSI controller node
- msi-parent: MSI parent of the root complex itself
-- legacy-interrupt-controller: Interrupt controller device node for Legacy interrupts
+- legacy-interrupt-controller: Interrupt controller device node for Legacy
+ interrupts
- interrupt-controller: identifies the node as an interrupt controller
- #interrupt-cells: should be set to 1
- #address-cells: specifies the number of cells needed to encode an
diff --git a/Documentation/devicetree/bindings/phy/apm-xgene-phy.txt b/Documentation/devicetree/bindings/phy/apm-xgene-phy.txt
index 5f3a65a9dd88..e1bb12711fbf 100644
--- a/Documentation/devicetree/bindings/phy/apm-xgene-phy.txt
+++ b/Documentation/devicetree/bindings/phy/apm-xgene-phy.txt
@@ -61,19 +61,16 @@ Example:
compatible = "apm,xgene-phy";
reg = <0x0 0x1f21a000 0x0 0x100>;
#phy-cells = <1>;
- status = "disabled";
};
phy2: phy@1f22a000 {
compatible = "apm,xgene-phy";
reg = <0x0 0x1f22a000 0x0 0x100>;
#phy-cells = <1>;
- status = "ok";
};
phy3: phy@1f23a000 {
compatible = "apm,xgene-phy";
reg = <0x0 0x1f23a000 0x0 0x100>;
#phy-cells = <1>;
- status = "ok";
};
diff --git a/Documentation/devicetree/bindings/phy/bcm-ns-usb3-phy.txt b/Documentation/devicetree/bindings/phy/bcm-ns-usb3-phy.txt
index 09aeba94538d..32f057260351 100644
--- a/Documentation/devicetree/bindings/phy/bcm-ns-usb3-phy.txt
+++ b/Documentation/devicetree/bindings/phy/bcm-ns-usb3-phy.txt
@@ -3,9 +3,10 @@ Driver for Broadcom Northstar USB 3.0 PHY
Required properties:
- compatible: one of: "brcm,ns-ax-usb3-phy", "brcm,ns-bx-usb3-phy".
-- reg: register mappings for DMP (Device Management Plugin) and ChipCommon B
- MMI.
-- reg-names: "dmp" and "ccb-mii"
+- reg: address of MDIO bus device
+- usb3-dmp-syscon: phandle to syscon with DMP (Device Management Plugin)
+ registers
+- #phy-cells: must be 0
Initialization of USB 3.0 PHY depends on Northstar version. There are currently
three known series: Ax, Bx and Cx.
@@ -15,9 +16,19 @@ Known B1: BCM4707 rev 6
Known C0: BCM47094 rev 0
Example:
- usb3-phy {
- compatible = "brcm,ns-ax-usb3-phy";
- reg = <0x18105000 0x1000>, <0x18003000 0x1000>;
- reg-names = "dmp", "ccb-mii";
- #phy-cells = <0>;
+ mdio: mdio@0 {
+ reg = <0x0>;
+ #size-cells = <1>;
+ #address-cells = <0>;
+
+ usb3-phy@10 {
+ compatible = "brcm,ns-ax-usb3-phy";
+ reg = <0x10>;
+ usb3-dmp-syscon = <&usb3_dmp>;
+ #phy-cells = <0>;
+ };
+ };
+
+ usb3_dmp: syscon@18105000 {
+ reg = <0x18105000 0x1000>;
};
diff --git a/Documentation/devicetree/bindings/phy/brcm,ns2-drd-phy.txt b/Documentation/devicetree/bindings/phy/brcm,ns2-drd-phy.txt
new file mode 100644
index 000000000000..04f063aa7883
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/brcm,ns2-drd-phy.txt
@@ -0,0 +1,30 @@
+BROADCOM NORTHSTAR2 USB2 (DUAL ROLE DEVICE) PHY
+
+Required properties:
+ - compatible: brcm,ns2-drd-phy
+ - reg: offset and length of the NS2 PHY related registers.
+ - reg-names
+ The below registers must be provided.
+ icfg - for DRD ICFG configurations
+ rst-ctrl - for DRD IDM reset
+ crmu-ctrl - for CRMU core vdd, PHY and PHY PLL reset
+ usb2-strap - for port over current polarity reversal
+ - #phy-cells: Must be 0. No args required.
+ - vbus-gpios: vbus gpio binding
+ - id-gpios: id gpio binding
+
+Refer to phy/phy-bindings.txt for the generic PHY binding properties
+
+Example:
+ usbdrd_phy: phy@66000960 {
+ #phy-cells = <0>;
+ compatible = "brcm,ns2-drd-phy";
+ reg = <0x66000960 0x24>,
+ <0x67012800 0x4>,
+ <0x6501d148 0x4>,
+ <0x664d0700 0x4>;
+ reg-names = "icfg", "rst-ctrl",
+ "crmu-ctrl", "usb2-strap";
+ id-gpios = <&gpio_g 30 0>;
+ vbus-gpios = <&gpio_g 31 0>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt b/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt
index 6ccce09d8bbf..97977cd29a98 100644
--- a/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt
+++ b/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt
@@ -7,12 +7,13 @@ Required properties:
"brcm,iproc-ns2-sata-phy"
"brcm,iproc-nsp-sata-phy"
"brcm,phy-sata3"
+ "brcm,iproc-sr-sata-phy"
- address-cells: should be 1
- size-cells: should be 0
- reg: register ranges for the PHY PCB interface
- reg-names: should be "phy" and "phy-ctrl"
The "phy-ctrl" registers are only required for
- "brcm,iproc-ns2-sata-phy".
+ "brcm,iproc-ns2-sata-phy" and "brcm,iproc-sr-sata-phy".
Sub-nodes:
Each port's PHY should be represented as a sub-node.
@@ -23,8 +24,8 @@ Sub-nodes required properties:
Sub-nodes optional properties:
- brcm,enable-ssc: use spread spectrum clocking (SSC) on this port
- This property is not applicable for "brcm,iproc-ns2-sata-phy" and
- "brcm,iproc-nsp-sata-phy".
+ This property is not applicable for "brcm,iproc-ns2-sata-phy",
+ "brcm,iproc-nsp-sata-phy" and "brcm,iproc-sr-sata-phy".
Example:
sata-phy@f0458100 {
diff --git a/Documentation/devicetree/bindings/phy/keystone-usb-phy.txt b/Documentation/devicetree/bindings/phy/keystone-usb-phy.txt
index f37b3a86341d..300830dda0bf 100644
--- a/Documentation/devicetree/bindings/phy/keystone-usb-phy.txt
+++ b/Documentation/devicetree/bindings/phy/keystone-usb-phy.txt
@@ -16,5 +16,4 @@ usb_phy: usb_phy@2620738 {
#address-cells = <1>;
#size-cells = <1>;
reg = <0x2620738 32>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/phy/meson-gxl-usb2-phy.txt b/Documentation/devicetree/bindings/phy/meson-gxl-usb2-phy.txt
new file mode 100644
index 000000000000..a105494a0fc9
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/meson-gxl-usb2-phy.txt
@@ -0,0 +1,17 @@
+* Amlogic Meson GXL and GXM USB2 PHY binding
+
+Required properties:
+- compatible: Should be "amlogic,meson-gxl-usb2-phy"
+- reg: The base address and length of the registers
+- #phys-cells: must be 0 (see phy-bindings.txt in this directory)
+
+Optional properties:
+- phy-supply: see phy-bindings.txt in this directory
+
+
+Example:
+ usb2_phy0: phy@78000 {
+ compatible = "amlogic,meson-gxl-usb2-phy";
+ #phy-cells = <0>;
+ reg = <0x0 0x78000 0x0 0x20>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/meson8b-usb2-phy.txt b/Documentation/devicetree/bindings/phy/meson8b-usb2-phy.txt
index 5fa73b9d20f5..d81d73aea608 100644
--- a/Documentation/devicetree/bindings/phy/meson8b-usb2-phy.txt
+++ b/Documentation/devicetree/bindings/phy/meson8b-usb2-phy.txt
@@ -1,7 +1,8 @@
-* Amlogic Meson8b and GXBB USB2 PHY
+* Amlogic Meson8, Meson8b and GXBB USB2 PHY
Required properties:
- compatible: Depending on the platform this should be one of:
+ "amlogic,meson8-usb2-phy"
"amlogic,meson8b-usb2-phy"
"amlogic,meson-gxbb-usb2-phy"
- reg: The base address and length of the registers
diff --git a/Documentation/devicetree/bindings/phy/phy-bindings.txt b/Documentation/devicetree/bindings/phy/phy-bindings.txt
index 1293c321754c..a403b81d0679 100644
--- a/Documentation/devicetree/bindings/phy/phy-bindings.txt
+++ b/Documentation/devicetree/bindings/phy/phy-bindings.txt
@@ -34,7 +34,9 @@ PHY user node
=============
Required Properties:
-phys : the phandle for the PHY device (used by the PHY subsystem)
+phys : the phandle for the PHY device (used by the PHY subsystem; not to be
+ confused with the Ethernet specific 'phy' and 'phy-handle' properties,
+ see Documentation/devicetree/bindings/net/ethernet.txt for these)
phy-names : the names of the PHY corresponding to the PHYs present in the
*phys* phandle
diff --git a/Documentation/devicetree/bindings/phy/phy-cpcap-usb.txt b/Documentation/devicetree/bindings/phy/phy-cpcap-usb.txt
new file mode 100644
index 000000000000..2eb9b2b69037
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-cpcap-usb.txt
@@ -0,0 +1,40 @@
+Motorola CPCAP PMIC USB PHY binding
+
+Required properties:
+compatible: Shall be either "motorola,cpcap-usb-phy" or
+ "motorola,mapphone-cpcap-usb-phy"
+#phy-cells: Shall be 0
+interrupts: CPCAP PMIC interrupts used by the USB PHY
+interrupt-names: Interrupt names
+io-channels: IIO ADC channels used by the USB PHY
+io-channel-names: IIO ADC channel names
+vusb-supply: Regulator for the PHY
+
+Optional properties:
+pinctrl: Optional alternate pin modes for the PHY
+pinctrl-names: Names for optional pin modes
+mode-gpios: Optional GPIOs for configuring alternate modes
+
+Example:
+cpcap_usb2_phy: phy {
+ compatible = "motorola,mapphone-cpcap-usb-phy";
+ pinctrl-0 = <&usb_gpio_mux_sel1 &usb_gpio_mux_sel2>;
+ pinctrl-1 = <&usb_ulpi_pins>;
+ pinctrl-2 = <&usb_utmi_pins>;
+ pinctrl-3 = <&uart3_pins>;
+ pinctrl-names = "default", "ulpi", "utmi", "uart";
+ #phy-cells = <0>;
+ interrupts-extended = <
+ &cpcap 15 0 &cpcap 14 0 &cpcap 28 0 &cpcap 19 0
+ &cpcap 18 0 &cpcap 17 0 &cpcap 16 0 &cpcap 49 0
+ &cpcap 48 1
+ >;
+ interrupt-names =
+ "id_ground", "id_float", "se0conn", "vbusvld",
+ "sessvld", "sessend", "se1", "dm", "dp";
+ mode-gpios = <&gpio2 28 GPIO_ACTIVE_HIGH
+ &gpio1 0 GPIO_ACTIVE_HIGH>;
+ io-channels = <&cpcap_adc 2>, <&cpcap_adc 7>;
+ io-channel-names = "vbus", "id";
+ vusb-supply = <&vusb>;
+};
diff --git a/Documentation/devicetree/bindings/phy/phy-lantiq-rcu-usb2.txt b/Documentation/devicetree/bindings/phy/phy-lantiq-rcu-usb2.txt
new file mode 100644
index 000000000000..643948b6b576
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-lantiq-rcu-usb2.txt
@@ -0,0 +1,40 @@
+Lantiq XWAY SoC RCU USB 1.1/2.0 PHY binding
+===========================================
+
+This binding describes the USB PHY hardware provided by the RCU module on the
+Lantiq XWAY SoCs.
+
+This node has to be a sub node of the Lantiq RCU block.
+
+-------------------------------------------------------------------------------
+Required properties (controller (parent) node):
+- compatible : Should be one of
+ "lantiq,ase-usb2-phy"
+ "lantiq,danube-usb2-phy"
+ "lantiq,xrx100-usb2-phy"
+ "lantiq,xrx200-usb2-phy"
+ "lantiq,xrx300-usb2-phy"
+- reg : Defines the following sets of registers in the parent
+ syscon device
+ - Offset of the USB PHY configuration register
+ - Offset of the USB Analog configuration
+ register (only for xrx200 and xrx200)
+- clocks : References to the (PMU) "phy" clk gate.
+- clock-names : Must be "phy"
+- resets : References to the RCU USB configuration reset bits.
+- reset-names : Must be one of the following:
+ "phy" (optional)
+ "ctrl" (shared)
+
+-------------------------------------------------------------------------------
+Example for the USB PHYs on an xRX200 SoC:
+ usb_phy0: usb2-phy@18 {
+ compatible = "lantiq,xrx200-usb2-phy";
+ reg = <0x18 4>, <0x38 4>;
+
+ clocks = <&pmu PMU_GATE_USB0_PHY>;
+ clock-names = "phy";
+ resets = <&reset1 4 4>, <&reset0 4 4>;
+ reset-names = "phy", "ctrl";
+ #phy-cells = <0>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/phy-mt65xx-usb.txt b/Documentation/devicetree/bindings/phy/phy-mt65xx-usb.txt
deleted file mode 100644
index 0acc5a99fb79..000000000000
--- a/Documentation/devicetree/bindings/phy/phy-mt65xx-usb.txt
+++ /dev/null
@@ -1,137 +0,0 @@
-mt65xx USB3.0 PHY binding
---------------------------
-
-This binding describes a usb3.0 phy for mt65xx platforms of Medaitek SoC.
-
-Required properties (controller (parent) node):
- - compatible : should be one of
- "mediatek,mt2701-u3phy"
- "mediatek,mt2712-u3phy"
- "mediatek,mt8173-u3phy"
- - clocks : (deprecated, use port's clocks instead) a list of phandle +
- clock-specifier pairs, one for each entry in clock-names
- - clock-names : (deprecated, use port's one instead) must contain
- "u3phya_ref": for reference clock of usb3.0 analog phy.
-
-Required nodes : a sub-node is required for each port the controller
- provides. Address range information including the usual
- 'reg' property is used inside these nodes to describe
- the controller's topology.
-
-Optional properties (controller (parent) node):
- - reg : offset and length of register shared by multiple ports,
- exclude port's private register. It is needed on mt2701
- and mt8173, but not on mt2712.
-
-Required properties (port (child) node):
-- reg : address and length of the register set for the port.
-- clocks : a list of phandle + clock-specifier pairs, one for each
- entry in clock-names
-- clock-names : must contain
- "ref": 48M reference clock for HighSpeed analog phy; and 26M
- reference clock for SuperSpeed analog phy, sometimes is
- 24M, 25M or 27M, depended on platform.
-- #phy-cells : should be 1 (See second example)
- cell after port phandle is phy type from:
- - PHY_TYPE_USB2
- - PHY_TYPE_USB3
-
-Example:
-
-u3phy: usb-phy@11290000 {
- compatible = "mediatek,mt8173-u3phy";
- reg = <0 0x11290000 0 0x800>;
- #address-cells = <2>;
- #size-cells = <2>;
- ranges;
- status = "okay";
-
- u2port0: usb-phy@11290800 {
- reg = <0 0x11290800 0 0x100>;
- clocks = <&apmixedsys CLK_APMIXED_REF2USB_TX>;
- clock-names = "ref";
- #phy-cells = <1>;
- status = "okay";
- };
-
- u3port0: usb-phy@11290900 {
- reg = <0 0x11290800 0 0x700>;
- clocks = <&clk26m>;
- clock-names = "ref";
- #phy-cells = <1>;
- status = "okay";
- };
-
- u2port1: usb-phy@11291000 {
- reg = <0 0x11291000 0 0x100>;
- clocks = <&apmixedsys CLK_APMIXED_REF2USB_TX>;
- clock-names = "ref";
- #phy-cells = <1>;
- status = "okay";
- };
-};
-
-Specifying phy control of devices
----------------------------------
-
-Device nodes should specify the configuration required in their "phys"
-property, containing a phandle to the phy port node and a device type;
-phy-names for each port are optional.
-
-Example:
-
-#include <dt-bindings/phy/phy.h>
-
-usb30: usb@11270000 {
- ...
- phys = <&u2port0 PHY_TYPE_USB2>, <&u3port0 PHY_TYPE_USB3>;
- phy-names = "usb2-0", "usb3-0";
- ...
-};
-
-
-Layout differences of banks between mt8173/mt2701 and mt2712
--------------------------------------------------------------
-mt8173 and mt2701:
-port offset bank
-shared 0x0000 SPLLC
- 0x0100 FMREG
-u2 port0 0x0800 U2PHY_COM
-u3 port0 0x0900 U3PHYD
- 0x0a00 U3PHYD_BANK2
- 0x0b00 U3PHYA
- 0x0c00 U3PHYA_DA
-u2 port1 0x1000 U2PHY_COM
-u3 port1 0x1100 U3PHYD
- 0x1200 U3PHYD_BANK2
- 0x1300 U3PHYA
- 0x1400 U3PHYA_DA
-u2 port2 0x1800 U2PHY_COM
- ...
-
-mt2712:
-port offset bank
-u2 port0 0x0000 MISC
- 0x0100 FMREG
- 0x0300 U2PHY_COM
-u3 port0 0x0700 SPLLC
- 0x0800 CHIP
- 0x0900 U3PHYD
- 0x0a00 U3PHYD_BANK2
- 0x0b00 U3PHYA
- 0x0c00 U3PHYA_DA
-u2 port1 0x1000 MISC
- 0x1100 FMREG
- 0x1300 U2PHY_COM
-u3 port1 0x1700 SPLLC
- 0x1800 CHIP
- 0x1900 U3PHYD
- 0x1a00 U3PHYD_BANK2
- 0x1b00 U3PHYA
- 0x1c00 U3PHYA_DA
-u2 port2 0x2000 MISC
- ...
-
- SPLLC shared by u3 ports and FMREG shared by u2 ports on
-mt8173/mt2701 are put back into each port; a new bank MISC for
-u2 ports and CHIP for u3 ports are added on mt2712.
diff --git a/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt b/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt
new file mode 100644
index 000000000000..41e09ed2ca70
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt
@@ -0,0 +1,140 @@
+MediaTek T-PHY binding
+--------------------------
+
+T-phy controller supports physical layer functionality for a number of
+controllers on MediaTek SoCs, such as, USB2.0, USB3.0, PCIe, and SATA.
+
+Required properties (controller (parent) node):
+ - compatible : should be one of
+ "mediatek,generic-tphy-v1"
+ "mediatek,generic-tphy-v2"
+ "mediatek,mt2701-u3phy" (deprecated)
+ "mediatek,mt2712-u3phy" (deprecated)
+ "mediatek,mt8173-u3phy";
+ make use of "mediatek,generic-tphy-v1" on mt2701 instead and
+ "mediatek,generic-tphy-v2" on mt2712 instead.
+ - clocks : (deprecated, use port's clocks instead) a list of phandle +
+ clock-specifier pairs, one for each entry in clock-names
+ - clock-names : (deprecated, use port's one instead) must contain
+ "u3phya_ref": for reference clock of usb3.0 analog phy.
+
+Required nodes : a sub-node is required for each port the controller
+ provides. Address range information including the usual
+ 'reg' property is used inside these nodes to describe
+ the controller's topology.
+
+Optional properties (controller (parent) node):
+ - reg : offset and length of register shared by multiple ports,
+ exclude port's private register. It is needed on mt2701
+ and mt8173, but not on mt2712.
+
+Required properties (port (child) node):
+- reg : address and length of the register set for the port.
+- clocks : a list of phandle + clock-specifier pairs, one for each
+ entry in clock-names
+- clock-names : must contain
+ "ref": 48M reference clock for HighSpeed analog phy; and 26M
+ reference clock for SuperSpeed analog phy, sometimes is
+ 24M, 25M or 27M, depended on platform.
+- #phy-cells : should be 1 (See second example)
+ cell after port phandle is phy type from:
+ - PHY_TYPE_USB2
+ - PHY_TYPE_USB3
+ - PHY_TYPE_PCIE
+ - PHY_TYPE_SATA
+
+Example:
+
+u3phy: usb-phy@11290000 {
+ compatible = "mediatek,mt8173-u3phy";
+ reg = <0 0x11290000 0 0x800>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ u2port0: usb-phy@11290800 {
+ reg = <0 0x11290800 0 0x100>;
+ clocks = <&apmixedsys CLK_APMIXED_REF2USB_TX>;
+ clock-names = "ref";
+ #phy-cells = <1>;
+ };
+
+ u3port0: usb-phy@11290900 {
+ reg = <0 0x11290800 0 0x700>;
+ clocks = <&clk26m>;
+ clock-names = "ref";
+ #phy-cells = <1>;
+ };
+
+ u2port1: usb-phy@11291000 {
+ reg = <0 0x11291000 0 0x100>;
+ clocks = <&apmixedsys CLK_APMIXED_REF2USB_TX>;
+ clock-names = "ref";
+ #phy-cells = <1>;
+ };
+};
+
+Specifying phy control of devices
+---------------------------------
+
+Device nodes should specify the configuration required in their "phys"
+property, containing a phandle to the phy port node and a device type;
+phy-names for each port are optional.
+
+Example:
+
+#include <dt-bindings/phy/phy.h>
+
+usb30: usb@11270000 {
+ ...
+ phys = <&u2port0 PHY_TYPE_USB2>, <&u3port0 PHY_TYPE_USB3>;
+ phy-names = "usb2-0", "usb3-0";
+ ...
+};
+
+
+Layout differences of banks between mt8173/mt2701 and mt2712
+-------------------------------------------------------------
+mt8173 and mt2701:
+port offset bank
+shared 0x0000 SPLLC
+ 0x0100 FMREG
+u2 port0 0x0800 U2PHY_COM
+u3 port0 0x0900 U3PHYD
+ 0x0a00 U3PHYD_BANK2
+ 0x0b00 U3PHYA
+ 0x0c00 U3PHYA_DA
+u2 port1 0x1000 U2PHY_COM
+u3 port1 0x1100 U3PHYD
+ 0x1200 U3PHYD_BANK2
+ 0x1300 U3PHYA
+ 0x1400 U3PHYA_DA
+u2 port2 0x1800 U2PHY_COM
+ ...
+
+mt2712:
+port offset bank
+u2 port0 0x0000 MISC
+ 0x0100 FMREG
+ 0x0300 U2PHY_COM
+u3 port0 0x0700 SPLLC
+ 0x0800 CHIP
+ 0x0900 U3PHYD
+ 0x0a00 U3PHYD_BANK2
+ 0x0b00 U3PHYA
+ 0x0c00 U3PHYA_DA
+u2 port1 0x1000 MISC
+ 0x1100 FMREG
+ 0x1300 U2PHY_COM
+u3 port1 0x1700 SPLLC
+ 0x1800 CHIP
+ 0x1900 U3PHYD
+ 0x1a00 U3PHYD_BANK2
+ 0x1b00 U3PHYA
+ 0x1c00 U3PHYA_DA
+u2 port2 0x2000 MISC
+ ...
+
+ SPLLC shared by u3 ports and FMREG shared by u2 ports on
+mt8173/mt2701 are put back into each port; a new bank MISC for
+u2 ports and CHIP for u3 ports are added on mt2712.
diff --git a/Documentation/devicetree/bindings/phy/phy-mvebu-comphy.txt b/Documentation/devicetree/bindings/phy/phy-mvebu-comphy.txt
new file mode 100644
index 000000000000..bfcf80341657
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-mvebu-comphy.txt
@@ -0,0 +1,43 @@
+mvebu comphy driver
+-------------------
+
+A comphy controller can be found on Marvell Armada 7k/8k on the CP110. It
+provides a number of shared PHYs used by various interfaces (network, sata,
+usb, PCIe...).
+
+Required properties:
+
+- compatible: should be "marvell,comphy-cp110"
+- reg: should contain the comphy register location and length.
+- marvell,system-controller: should contain a phandle to the
+ system controller node.
+- #address-cells: should be 1.
+- #size-cells: should be 0.
+
+A sub-node is required for each comphy lane provided by the comphy.
+
+Required properties (child nodes):
+
+- reg: comphy lane number.
+- #phy-cells : from the generic phy bindings, must be 1. Defines the
+ input port to use for a given comphy lane.
+
+Example:
+
+ cpm_comphy: phy@120000 {
+ compatible = "marvell,comphy-cp110";
+ reg = <0x120000 0x6000>;
+ marvell,system-controller = <&cpm_syscon0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpm_comphy0: phy@0 {
+ reg = <0>;
+ #phy-cells = <1>;
+ };
+
+ cpm_comphy1: phy@1 {
+ reg = <1>;
+ #phy-cells = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/phy/phy-mvebu.txt b/Documentation/devicetree/bindings/phy/phy-mvebu.txt
index f95b6260a3b3..64afdd13d91d 100644
--- a/Documentation/devicetree/bindings/phy/phy-mvebu.txt
+++ b/Documentation/devicetree/bindings/phy/phy-mvebu.txt
@@ -18,7 +18,6 @@ Example:
clocks = <&gate_clk 15>;
clock-names = "sata";
#phy-cells = <0>;
- status = "ok";
};
Armada 375 USB cluster
diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
index e71a8d23f4a8..074a7b3b0425 100644
--- a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
+++ b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
@@ -2,9 +2,11 @@ ROCKCHIP USB2.0 PHY WITH INNO IP BLOCK
Required properties (phy (parent) node):
- compatible : should be one of the listed compatibles:
+ * "rockchip,rk3228-usb2phy"
* "rockchip,rk3328-usb2phy"
* "rockchip,rk3366-usb2phy"
* "rockchip,rk3399-usb2phy"
+ * "rockchip,rv1108-usb2phy"
- reg : the address offset of grf for usb-phy configuration.
- #clock-cells : should be 0.
- clock-output-names : specify the 480m output clock name.
@@ -17,6 +19,10 @@ Optional properties:
usb-phy output 480m and xin24m.
Refer to clk/clock-bindings.txt for generic clock
consumer properties.
+ - rockchip,usbgrf : phandle to the syscon managing the "usb general
+ register files". When set driver will request its
+ phandle as one companion-grf for some special SoCs
+ (e.g RV1108).
Required nodes : a sub-node is required for each port the phy provides.
The sub-node name is used to identify host or otg port,
@@ -27,10 +33,14 @@ Required nodes : a sub-node is required for each port the phy provides.
Required properties (port (child) node):
- #phy-cells : must be 0. See ./phy-bindings.txt for details.
- interrupts : specify an interrupt for each entry in interrupt-names.
- - interrupt-names : a list which shall be the following entries:
+ - interrupt-names : a list which should be one of the following cases:
+ Regular case:
* "otg-id" : for the otg id interrupt.
* "otg-bvalid" : for the otg vbus interrupt.
* "linestate" : for the host/otg linestate interrupt.
+ Some SoCs use one interrupt with the above muxed together, so for these
+ * "otg-mux" : otg-port interrupt, which mux otg-id/otg-bvalid/linestate
+ to one.
Optional properties:
- phy-supply : phandle to a regulator that provides power to VBUS.
@@ -57,14 +67,12 @@ grf: syscon@ff770000 {
<GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "otg-id", "otg-bvalid", "linestate";
- status = "okay";
};
u2phy_host: host-port {
#phy-cells = <0>;
interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "linestate";
- status = "okay";
};
};
};
diff --git a/Documentation/devicetree/bindings/phy/qcom-dwc3-usb-phy.txt b/Documentation/devicetree/bindings/phy/qcom-dwc3-usb-phy.txt
index 86f2dbe07ed4..a1697c27aecd 100644
--- a/Documentation/devicetree/bindings/phy/qcom-dwc3-usb-phy.txt
+++ b/Documentation/devicetree/bindings/phy/qcom-dwc3-usb-phy.txt
@@ -25,7 +25,6 @@ Example:
clock-names = "ref";
#phy-cells = <0>;
- status = "ok";
};
phy@100f8830 {
@@ -35,5 +34,4 @@ Example:
clock-names = "ref";
#phy-cells = <0>;
- status = "ok";
};
diff --git a/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt b/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
index e11c563a65ec..b6a9f2b92bab 100644
--- a/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
+++ b/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
@@ -6,6 +6,7 @@ controllers on Qualcomm chipsets, such as, PCIe, UFS, and USB.
Required properties:
- compatible: compatible list, contains:
+ "qcom,ipq8074-qmp-pcie-phy" for PCIe phy on IPQ8074
"qcom,msm8996-qmp-pcie-phy" for 14nm PCIe phy on msm8996,
"qcom,msm8996-qmp-usb3-phy" for 14nm USB3 phy on msm8996.
@@ -38,6 +39,8 @@ Required properties:
"phy", "common", "cfg".
For "qcom,msm8996-qmp-usb3-phy" must contain
"phy", "common".
+ For "qcom,ipq8074-qmp-pcie-phy" must contain:
+ "phy", "common".
- vdda-phy-supply: Phandle to a regulator supply to PHY core block.
- vdda-pll-supply: Phandle to 1.8V regulator supply to PHY refclk pll block.
@@ -60,6 +63,13 @@ Required properties for child node:
one for each entry in clock-names.
- clock-names: Must contain following for pcie and usb qmp phys:
"pipe<lane-number>" for pipe clock specific to each lane.
+ - clock-output-names: Name of the PHY clock that will be the parent for
+ the above pipe clock.
+
+ For "qcom,ipq8074-qmp-pcie-phy":
+ - "pcie20_phy0_pipe_clk" Pipe Clock parent
+ (or)
+ "pcie20_phy1_pipe_clk"
- resets: a list of phandles and reset controller specifier pairs,
one for each entry in reset-names.
@@ -96,6 +106,7 @@ Example:
clocks = <&gcc GCC_PCIE_0_PIPE_CLK>;
clock-names = "pipe0";
+ clock-output-names = "pcie_0_pipe_clk_src";
resets = <&gcc GCC_PCIE_0_PHY_BCR>;
reset-names = "lane0";
};
diff --git a/Documentation/devicetree/bindings/phy/ralink-usb-phy.txt b/Documentation/devicetree/bindings/phy/ralink-usb-phy.txt
new file mode 100644
index 000000000000..9d2868a437ab
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/ralink-usb-phy.txt
@@ -0,0 +1,23 @@
+Mediatek/Ralink USB PHY
+
+Required properties:
+ - compatible: "ralink,rt3352-usbphy"
+ "mediatek,mt7620-usbphy"
+ "mediatek,mt7628-usbphy"
+ - reg: required for "mediatek,mt7628-usbphy", unused otherwise
+ - #phy-cells: should be 0
+ - ralink,sysctl: a phandle to a ralink syscon register region
+ - resets: the two reset controllers for host and device
+ - reset-names: the names of the 2 reset controllers
+
+Example:
+
+usbphy: phy {
+ compatible = "mediatek,mt7628-usbphy";
+ reg = <0x10120000 0x1000>;
+ #phy-cells = <0>;
+
+ ralink,sysctl = <&sysc>;
+ resets = <&rstctrl 22 &rstctrl 25>;
+ reset-names = "host", "device";
+};
diff --git a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb3.txt b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb3.txt
new file mode 100644
index 000000000000..f94cea48f6b1
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb3.txt
@@ -0,0 +1,46 @@
+* Renesas R-Car generation 3 USB 3.0 PHY
+
+This file provides information on what the device node for the R-Car generation
+3 USB 3.0 PHY contains.
+If you want to enable spread spectrum clock (ssc), you should use USB_EXTAL
+instead of USB3_CLK. However, if you don't want to these features, you don't
+need this driver.
+
+Required properties:
+- compatible: "renesas,r8a7795-usb3-phy" if the device is a part of an R8A7795
+ SoC.
+ "renesas,r8a7796-usb3-phy" if the device is a part of an R8A7796
+ SoC.
+ "renesas,rcar-gen3-usb3-phy" for a generic R-Car Gen3 compatible
+ device.
+
+ When compatible with the generic version, nodes must list the
+ SoC-specific version corresponding to the platform first
+ followed by the generic version.
+
+- reg: offset and length of the USB 3.0 PHY register block.
+- clocks: A list of phandles and clock-specifier pairs.
+- clock-names: Name of the clocks.
+ - The funcional clock must be "usb3-if".
+ - The usb3's external clock must be "usb3s_clk".
+ - The usb2's external clock must be "usb_extal". If you want to use the ssc,
+ the clock-frequency must not be 0.
+- #phy-cells: see phy-bindings.txt in the same directory, must be <0>.
+
+Optional properties:
+- renesas,ssc-range: Enable/disable spread spectrum clock (ssc) by using
+ the following values as u32:
+ - 0 (or the property doesn't exist): disable the ssc
+ - 4980: enable the ssc as -4980 ppm
+ - 4492: enable the ssc as -4492 ppm
+ - 4003: enable the ssc as -4003 ppm
+
+Example (R-Car H3):
+
+ usb-phy@e65ee000 {
+ compatible = "renesas,r8a7795-usb3-phy",
+ "renesas,rcar-gen3-usb3-phy";
+ reg = <0 0xe65ee000 0 0x90>;
+ clocks = <&cpg CPG_MOD 328>, <&usb3s0_clk>, <&usb_extal>;
+ clock-names = "usb3-if", "usb3s_clk", "usb_extal";
+ };
diff --git a/Documentation/devicetree/bindings/phy/rockchip-pcie-phy.txt b/Documentation/devicetree/bindings/phy/rockchip-pcie-phy.txt
index 0f6222a672ce..b496042f1f44 100644
--- a/Documentation/devicetree/bindings/phy/rockchip-pcie-phy.txt
+++ b/Documentation/devicetree/bindings/phy/rockchip-pcie-phy.txt
@@ -3,7 +3,6 @@ Rockchip PCIE PHY
Required properties:
- compatible: rockchip,rk3399-pcie-phy
- - #phy-cells: must be 0
- clocks: Must contain an entry in clock-names.
See ../clocks/clock-bindings.txt for details.
- clock-names: Must be "refclk"
@@ -11,6 +10,12 @@ Required properties:
See ../reset/reset.txt for details.
- reset-names: Must be "phy"
+Required properties for legacy PHY mode (deprecated):
+ - #phy-cells: must be 0
+
+Required properties for per-lane PHY mode (preferred):
+ - #phy-cells: must be 1
+
Example:
grf: syscon@ff770000 {
diff --git a/Documentation/devicetree/bindings/phy/samsung-phy.txt b/Documentation/devicetree/bindings/phy/samsung-phy.txt
index ab80bfe31cb3..1c40ccd40ce4 100644
--- a/Documentation/devicetree/bindings/phy/samsung-phy.txt
+++ b/Documentation/devicetree/bindings/phy/samsung-phy.txt
@@ -82,7 +82,6 @@ usbphy: phy@125b0000 {
reg = <0x125b0000 0x100>;
clocks = <&clock 305>, <&clock 2>;
clock-names = "phy", "ref";
- status = "okay";
#phy-cells = <1>;
samsung,sysreg-phandle = <&sys_reg>;
samsung,pmureg-phandle = <&pmu_reg>;
diff --git a/Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt b/Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt
index 005bc22938ff..cbc7847dbf6c 100644
--- a/Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt
+++ b/Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt
@@ -9,6 +9,7 @@ Required properties:
* allwinner,sun7i-a20-usb-phy
* allwinner,sun8i-a23-usb-phy
* allwinner,sun8i-a33-usb-phy
+ * allwinner,sun8i-a83t-usb-phy
* allwinner,sun8i-h3-usb-phy
* allwinner,sun8i-v3s-usb-phy
* allwinner,sun50i-a64-usb-phy
@@ -17,18 +18,22 @@ Required properties:
* "phy_ctrl"
* "pmu0" for H3, V3s and A64
* "pmu1"
- * "pmu2" for sun4i, sun6i or sun7i
+ * "pmu2" for sun4i, sun6i, sun7i, sun8i-a83t or sun8i-h3
+ * "pmu3" for sun8i-h3
- #phy-cells : from the generic phy bindings, must be 1
- clocks : phandle + clock specifier for the phy clocks
- clock-names :
* "usb_phy" for sun4i, sun5i or sun7i
* "usb0_phy", "usb1_phy" and "usb2_phy" for sun6i
* "usb0_phy", "usb1_phy" for sun8i
+ * "usb0_phy", "usb1_phy", "usb2_phy" and "usb2_hsic_12M" for sun8i-a83t
+ * "usb0_phy", "usb1_phy", "usb2_phy" and "usb3_phy" for sun8i-h3
- resets : a list of phandle + reset specifier pairs
- reset-names :
* "usb0_reset"
* "usb1_reset"
- * "usb2_reset" for sun4i, sun6i or sun7i
+ * "usb2_reset" for sun4i, sun6i, sun7i, sun8i-a83t or sun8i-h3
+ * "usb3_reset" for sun8i-h3
Optional properties:
- usb0_id_det-gpios : gpio phandle for reading the otg id pin value
@@ -37,6 +42,7 @@ Optional properties:
- usb0_vbus-supply : regulator phandle for controller usb0 vbus
- usb1_vbus-supply : regulator phandle for controller usb1 vbus
- usb2_vbus-supply : regulator phandle for controller usb2 vbus
+- usb3_vbus-supply : regulator phandle for controller usb3 vbus
Example:
usbphy: phy@0x01c13400 {
diff --git a/Documentation/devicetree/bindings/phy/sun9i-usb-phy.txt b/Documentation/devicetree/bindings/phy/sun9i-usb-phy.txt
index 1cca85c709d1..f9853156e311 100644
--- a/Documentation/devicetree/bindings/phy/sun9i-usb-phy.txt
+++ b/Documentation/devicetree/bindings/phy/sun9i-usb-phy.txt
@@ -33,6 +33,5 @@ Example:
clock-names = "hsic_480M", "hsic_12M", "phy";
resets = <&usb_phy_clk 18>, <&usb_phy_clk 19>;
reset-names = "hsic", "phy";
- status = "disabled";
#phy-cells = <0>;
};
diff --git a/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt
index b53224473672..6f2ec9af0de2 100644
--- a/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt
@@ -20,8 +20,10 @@ Required properties:
"allwinner,sun9i-a80-pinctrl"
"allwinner,sun9i-a80-r-pinctrl"
"allwinner,sun8i-a83t-pinctrl"
+ "allwinner,sun8i-a83t-r-pinctrl"
"allwinner,sun8i-h3-pinctrl"
"allwinner,sun8i-h3-r-pinctrl"
+ "allwinner,sun8i-r40-pinctrl"
"allwinner,sun50i-a64-pinctrl"
"allwinner,sun50i-a64-r-pinctrl"
"allwinner,sun50i-h5-pinctrl"
diff --git a/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt
index 590e60378be3..3e23fece99da 100644
--- a/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt
@@ -148,5 +148,4 @@ dbgu: serial@fffff200 {
interrupts = <1 4 7>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_dbgu>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/pinctrl/cortina,gemini-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/cortina,gemini-pinctrl.txt
new file mode 100644
index 000000000000..61466c58faae
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/cortina,gemini-pinctrl.txt
@@ -0,0 +1,59 @@
+Cortina Systems Gemini pin controller
+
+This pin controller is found in the Cortina Systems Gemini SoC family,
+see further arm/gemini.txt. It is a purely group-based multiplexing pin
+controller.
+
+The pin controller node must be a subnode of the system controller node.
+
+Required properties:
+- compatible: "cortina,gemini-pinctrl"
+
+Subnodes of the pin controller contain pin control multiplexing set-up.
+Please refer to pinctrl-bindings.txt for generic pin multiplexing nodes.
+
+Example:
+
+
+syscon {
+ compatible = "cortina,gemini-syscon";
+ ...
+ pinctrl {
+ compatible = "cortina,gemini-pinctrl";
+ pinctrl-names = "default";
+ pinctrl-0 = <&dram_default_pins>, <&system_default_pins>,
+ <&vcontrol_default_pins>;
+
+ dram_default_pins: pinctrl-dram {
+ mux {
+ function = "dram";
+ groups = "dramgrp";
+ };
+ };
+ rtc_default_pins: pinctrl-rtc {
+ mux {
+ function = "rtc";
+ groups = "rtcgrp";
+ };
+ };
+ power_default_pins: pinctrl-power {
+ mux {
+ function = "power";
+ groups = "powergrp";
+ };
+ };
+ system_default_pins: pinctrl-system {
+ mux {
+ function = "system";
+ groups = "systemgrp";
+ };
+ };
+ (...)
+ uart_default_pins: pinctrl-uart {
+ mux {
+ function = "uart";
+ groups = "uartrxtxgrp";
+ };
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt
index 9fde25f1401a..42d74f8a1bcc 100644
--- a/Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt
@@ -61,7 +61,6 @@ Examples:
usdhc@0219c000 { /* uSDHC4 */
non-removable;
vmmc-supply = <&reg_3p3v>;
- status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usdhc4_1>;
};
diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imx7d-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/fsl,imx7d-pinctrl.txt
index 8c5d27c5b562..6666277c3acb 100644
--- a/Documentation/devicetree/bindings/pinctrl/fsl,imx7d-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/fsl,imx7d-pinctrl.txt
@@ -61,7 +61,6 @@ iomuxc-lpsr controller and SDA pad from iomuxc controller as:
i2c1: i2c@30a20000 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c1_1 &pinctrl_i2c1_2>;
- status = "okay";
};
iomuxc-lpsr@302c0000 {
diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imx7ulp-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/fsl,imx7ulp-pinctrl.txt
new file mode 100644
index 000000000000..44ad670ae11e
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/fsl,imx7ulp-pinctrl.txt
@@ -0,0 +1,61 @@
+* Freescale i.MX7ULP IOMUX Controller
+
+i.MX 7ULP has three IOMUXC instances: IOMUXC0 for M4 ports, IOMUXC1 for A7
+ports and IOMUXC DDR for DDR interface.
+
+Note:
+This binding doc is only for the IOMUXC1 support in A7 Domain and it only
+supports generic pin config.
+
+Please also refer pinctrl-bindings.txt in this directory for generic pinctrl
+binding.
+
+=== Pin Controller Node ===
+
+Required properties:
+- compatible: "fsl,imx7ulp-iomuxc1"
+- reg: Should contain the base physical address and size of the iomuxc
+ registers.
+
+=== Pin Configuration Node ===
+- pinmux: One integers array, represents a group of pins mux setting.
+ The format is pinmux = <PIN_FUNC_ID>, PIN_FUNC_ID is a pin working on
+ a specific function.
+
+ NOTE: i.MX7ULP PIN_FUNC_ID consists of 4 integers as it shares one mux
+ and config register as follows:
+ <mux_conf_reg input_reg mux_mode input_val>
+
+ Refer to imx7ulp-pinfunc.h in in device tree source folder for all
+ available imx7ulp PIN_FUNC_ID.
+
+Optional Properties:
+- drive-strength Integer. Controls Drive Strength
+ 0: Standard
+ 1: Hi Driver
+- drive-push-pull Bool. Enable Pin Push-pull
+- drive-open-drain Bool. Enable Pin Open-drian
+- slew-rate: Integer. Controls Slew Rate
+ 0: Standard
+ 1: Slow
+- bias-disable: Bool. Pull disabled
+- bias-pull-down: Bool. Pull down on pin
+- bias-pull-up: Bool. Pull up on pin
+
+Examples:
+#include "imx7ulp-pinfunc.h"
+
+/* Pin Controller Node */
+iomuxc1: iomuxc@40ac0000 {
+ compatible = "fsl,imx7ulp-iomuxc1";
+ reg = <0x40ac0000 0x1000>;
+
+ /* Pin Configuration Node */
+ pinctrl_lpuart4: lpuart4grp {
+ pinmux = <
+ IMX7ULP_PAD_PTC3__LPUART4_RX
+ IMX7ULP_PAD_PTC2__LPUART4_TX
+ >;
+ bias-pull-up;
+ };
+};
diff --git a/Documentation/devicetree/bindings/pinctrl/ingenic,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/ingenic,pinctrl.txt
new file mode 100644
index 000000000000..ca313a7aeaff
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/ingenic,pinctrl.txt
@@ -0,0 +1,41 @@
+Ingenic jz47xx pin controller
+
+Please refer to pinctrl-bindings.txt in this directory for details of the
+common pinctrl bindings used by client devices, including the meaning of the
+phrase "pin configuration node".
+
+For the jz47xx SoCs, pin control is tightly bound with GPIO ports. All pins may
+be used as GPIOs, multiplexed device functions are configured within the
+GPIO port configuration registers and it is typical to refer to pins using the
+naming scheme "PxN" where x is a character identifying the GPIO port with
+which the pin is associated and N is an integer from 0 to 31 identifying the
+pin within that GPIO port. For example PA0 is the first pin in GPIO port A, and
+PB31 is the last pin in GPIO port B. The jz4740 contains 4 GPIO ports, PA to
+PD, for a total of 128 pins. The jz4780 contains 6 GPIO ports, PA to PF, for a
+total of 192 pins.
+
+
+Required properties:
+--------------------
+
+ - compatible: One of:
+ - "ingenic,jz4740-pinctrl"
+ - "ingenic,jz4770-pinctrl"
+ - "ingenic,jz4780-pinctrl"
+ - reg: Address range of the pinctrl registers.
+
+
+GPIO sub-nodes
+--------------
+
+The pinctrl node can have optional sub-nodes for the Ingenic GPIO driver;
+please refer to ../gpio/ingenic,gpio.txt.
+
+
+Example:
+--------
+
+pinctrl: pin-controller@10010000 {
+ compatible = "ingenic,jz4740-pinctrl";
+ reg = <0x10010000 0x400>;
+};
diff --git a/Documentation/devicetree/bindings/pinctrl/nvidia,tegra124-dpaux-padctl.txt b/Documentation/devicetree/bindings/pinctrl/nvidia,tegra124-dpaux-padctl.txt
index f2abdaee9022..e0e886b73527 100644
--- a/Documentation/devicetree/bindings/pinctrl/nvidia,tegra124-dpaux-padctl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/nvidia,tegra124-dpaux-padctl.txt
@@ -56,5 +56,4 @@ Example:
pinctrl-0 = <&state_dpaux_i2c>;
pinctrl-1 = <&state_dpaux_off>;
pinctrl-names = "default", "idle";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/pinctrl/oxnas,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/oxnas,pinctrl.txt
index 09e81a95bbfd..b1159434f593 100644
--- a/Documentation/devicetree/bindings/pinctrl/oxnas,pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/oxnas,pinctrl.txt
@@ -50,7 +50,6 @@ uart2: serial@900000 {
reg-io-width = <1>;
current-speed = <115200>;
no-loopback-test;
- status = "disabled";
resets = <&reset 22>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart2>;
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt
index ca01710ee29a..3b7266c7c438 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt
@@ -69,8 +69,9 @@ PWM1 PWM2 PWM3 PWM4 PWM5 PWM6 PWM7 RGMII1 RGMII2 RMII1 RMII2 ROM16 ROM8 ROMCS1
ROMCS2 ROMCS3 ROMCS4 RXD1 RXD2 RXD3 RXD4 SALT1 SALT2 SALT3 SALT4 SD1 SD2 SGPMCK
SGPMI SGPMLD SGPMO SGPSCK SGPSI0 SGPSI1 SGPSLD SIOONCTRL SIOPBI SIOPBO SIOPWREQ
SIOPWRGD SIOS3 SIOS5 SIOSCI SPI1 SPI1DEBUG SPI1PASSTHRU SPICS1 TIMER3 TIMER4
-TIMER5 TIMER6 TIMER7 TIMER8 TXD1 TXD2 TXD3 TXD4 UART6 USBCKI VGABIOS_ROM VGAHS
-VGAVS VPI18 VPI24 VPI30 VPO12 VPO24 WDTRST1 WDTRST2
+TIMER5 TIMER6 TIMER7 TIMER8 TXD1 TXD2 TXD3 TXD4 UART6 USB11D1 USB11H2 USB2D1
+USB2H1 USBCKI VGABIOS_ROM VGAHS VGAVS VPI18 VPI24 VPI30 VPO12 VPO24 WDTRST1
+WDTRST2
aspeed,ast2500-pinctrl, aspeed,g5-pinctrl:
@@ -86,7 +87,8 @@ SALT11 SALT12 SALT13 SALT14 SALT2 SALT3 SALT4 SALT5 SALT6 SALT7 SALT8 SALT9
SCL1 SCL2 SD1 SD2 SDA1 SDA2 SGPS1 SGPS2 SIOONCTRL SIOPBI SIOPBO SIOPWREQ
SIOPWRGD SIOS3 SIOS5 SIOSCI SPI1 SPI1CS1 SPI1DEBUG SPI1PASSTHRU SPI2CK SPI2CS0
SPI2CS1 SPI2MISO SPI2MOSI TIMER3 TIMER4 TIMER5 TIMER6 TIMER7 TIMER8 TXD1 TXD2
-TXD3 TXD4 UART6 USBCKI VGABIOSROM VGAHS VGAVS VPI24 VPO WDTRST1 WDTRST2
+TXD3 TXD4 UART6 USB11BHID USB2AD USB2AH USB2BD USB2BH USBCKI VGABIOSROM VGAHS
+VGAVS VPI24 VPO WDTRST1 WDTRST2
Examples
========
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
index f01d154090da..4483cc31e531 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
@@ -204,21 +204,22 @@ each single pin the number of required sub-nodes containing "pin" and
maintain.
For cases like this, the pin controller driver may use the pinmux helper
-property, where the pin identifier is packed with mux configuration settings
-in a single integer.
+property, where the pin identifier is provided with mux configuration settings
+in a pinmux group. A pinmux group consists of the pin identifier and mux
+settings represented as a single integer or an array of integers.
-The pinmux property accepts an array of integers, each of them describing
+The pinmux property accepts an array of pinmux groups, each of them describing
a single pin multiplexing configuration.
pincontroller {
state_0_node_a {
- pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ...;
+ pinmux = <PINMUX_GROUP>, <PINMUX_GROUP>, ...;
};
};
Each individual pin controller driver bindings documentation shall specify
-how those values (pin IDs and pin multiplexing configuration) are defined and
-assembled together.
+how pin IDs and pin multiplexing configuration are defined and assembled
+together in a pinmux group.
== Generic pin configuration node content ==
@@ -251,16 +252,24 @@ drive-push-pull - drive actively high and low
drive-open-drain - drive with open drain
drive-open-source - drive with open source
drive-strength - sink or source at most X mA
-input-enable - enable input on pin (no effect on output)
-input-disable - disable input on pin (no effect on output)
+input-enable - enable input on pin (no effect on output, such as
+ enabling an input buffer)
+input-disable - disable input on pin (no effect on output, such as
+ disabling an input buffer)
input-schmitt-enable - enable schmitt-trigger mode
input-schmitt-disable - disable schmitt-trigger mode
input-debounce - debounce mode with debound time X
power-source - select between different power supplies
low-power-enable - enable low power mode
low-power-disable - disable low power mode
+output-disable - disable output on a pin (such as disable an output
+ buffer)
+output-enable - enable output on a pin without actively driving it
+ (such as enabling an output buffer)
output-low - set the pin to output mode with low level
output-high - set the pin to output mode with high level
+sleep-hardware-state - indicate this is sleep related state which will be programmed
+ into the registers for the sleep state.
slew-rate - set the slew rate
For example:
@@ -300,7 +309,7 @@ arguments are described below.
- pinmux takes a list of pin IDs and mux settings as required argument. The
specific bindings for the hardware defines:
- How pin IDs and mux settings are defined and assembled together in a single
- integer.
+ integer or an array of integers.
- bias-pull-up, -down and -pin-default take as optional argument on hardware
supporting it the pull strength in Ohm. bias-disable will disable the pull.
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt65xx.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt65xx.txt
index 17631d0a9af7..37d744750579 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt65xx.txt
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt65xx.txt
@@ -5,6 +5,7 @@ The Mediatek's Pin controller is used to control SoC pins.
Required properties:
- compatible: value should be one of the following.
"mediatek,mt2701-pinctrl", compatible with mt2701 pinctrl.
+ "mediatek,mt2712-pinctrl", compatible with mt2712 pinctrl.
"mediatek,mt6397-pinctrl", compatible with mt6397 pinctrl.
"mediatek,mt7623-pinctrl", compatible with mt7623 pinctrl.
"mediatek,mt8127-pinctrl", compatible with mt8127 pinctrl.
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-rk805.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-rk805.txt
new file mode 100644
index 000000000000..eee3dc260934
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-rk805.txt
@@ -0,0 +1,63 @@
+Pincontrol driver for RK805 Power management IC.
+
+RK805 has 2 pins which can be configured as GPIO output only.
+
+Please refer file <devicetree/bindings/pinctrl/pinctrl-bindings.txt>
+for details of the common pinctrl bindings used by client devices,
+including the meaning of the phrase "pin configuration node".
+
+Optional Pinmux properties:
+--------------------------
+Following properties are required if default setting of pins are required
+at boot.
+- pinctrl-names: A pinctrl state named per <pinctrl-binding.txt>.
+- pinctrl[0...n]: Properties to contain the phandle for pinctrl states per
+ <pinctrl-binding.txt>.
+
+The pin configurations are defined as child of the pinctrl states node. Each
+sub-node have following properties:
+
+Required properties:
+------------------
+- #gpio-cells: Should be two. The first cell is the pin number and the
+ second is the GPIO flags.
+
+- gpio-controller: Marks the device node as a GPIO controller.
+
+- pins: List of pins. Valid values of pins properties are: gpio0, gpio1.
+
+First 2 properties must be added in the RK805 PMIC node, documented in
+Documentation/devicetree/bindings/mfd/rk808.txt
+
+Optional properties:
+-------------------
+Following are optional properties defined as pinmux DT binding document
+<pinctrl-bindings.txt>. Absence of properties will leave the configuration
+on default.
+ function,
+ output-low,
+ output-high.
+
+Valid values for function properties are: gpio.
+
+Theres is also not customised properties for any GPIO.
+
+Example:
+--------
+rk805: rk805@18 {
+ compatible = "rockchip,rk805";
+ ...
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pmic_int_l>, <&rk805_default>;
+
+ rk805_default: pinmux {
+ gpio01 {
+ pins = "gpio0", "gpio1";
+ function = "gpio";
+ output-high;
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-zx.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-zx.txt
new file mode 100644
index 000000000000..39170f372599
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-zx.txt
@@ -0,0 +1,84 @@
+* ZTE ZX Pin Controller
+
+The pin controller on ZTE ZX platforms is kinda of hybrid. It consists of
+a main controller and an auxiliary one. For example, on ZX296718 SoC, the
+main controller is TOP_PMM and the auxiliary one is AON_IOCFG. Both
+controllers work together to control pin multiplexing and configuration in
+the way illustrated as below.
+
+
+ GMII_RXD3 ---+
+ |
+ DVI1_HS ---+----------------------------- GMII_RXD3 (TOP pin)
+ |
+ BGPIO16 ---+ ^
+ | pinconf
+ ^ |
+ | pinmux |
+ | |
+
+ TOP_PMM (main) AON_IOCFG (aux)
+
+ | | |
+ | pinmux | |
+ | pinmux v |
+ v | pinconf
+ KEY_ROW2 ---+ v
+ PORT1_LCD_TE ---+ |
+ | AGPIO10 ---+------ KEY_ROW2 (AON pin)
+ I2S0_DOUT3 ---+ |
+ |-----------------------+
+ PWM_OUT3 ---+
+ |
+ VGA_VS1 ---+
+
+
+For most of pins like GMII_RXD3 in the figure, the pinmux function is
+controlled by TOP_PMM block only, and this type of pins are meant by term
+'TOP pins'. For pins like KEY_ROW2, the pinmux is controlled by both
+TOP_PMM and AON_IOCFG blocks, as the available multiplexing functions for
+the pin spread in both controllers. This type of pins are called 'AON pins'.
+Though pinmux implementation is quite different, pinconf is same for both
+types of pins. Both are controlled by auxiliary controller, i.e. AON_IOCFG
+on ZX296718.
+
+Required properties:
+- compatible: should be "zte,zx296718-pmm".
+- reg: the register physical address and length.
+- zte,auxiliary-controller: phandle to the auxiliary pin controller which
+ implements pinmux for AON pins and pinconf for all pins.
+
+The following pin configuration are supported. Please refer to
+pinctrl-bindings.txt in this directory for more details of the common
+pinctrl bindings used by client devices.
+
+- bias-pull-up
+- bias-pull-down
+- drive-strength
+- input-enable
+- slew-rate
+
+Examples:
+
+iocfg: pin-controller@119000 {
+ compatible = "zte,zx296718-iocfg";
+ reg = <0x119000 0x1000>;
+};
+
+pmm: pin-controller@1462000 {
+ compatible = "zte,zx296718-pmm";
+ reg = <0x1462000 0x1000>;
+ zte,auxiliary-controller = <&iocfg>;
+};
+
+&pmm {
+ vga_pins: vga {
+ pins = "KEY_COL1", "KEY_COL2", "KEY_ROW1", "KEY_ROW2";
+ function = "VGA";
+ };
+};
+
+&vga {
+ pinctrl-names = "default";
+ pinctrl-0 = <&vga_pins>;
+};
diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,apq8064-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/qcom,apq8064-pinctrl.txt
index a7bde64798c7..a752a4716486 100644
--- a/Documentation/devicetree/bindings/pinctrl/qcom,apq8064-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,apq8064-pinctrl.txt
@@ -46,7 +46,8 @@ Valid values for pins are:
gpio0-gpio89
Valid values for function are:
- cam_mclk, codec_mic_i2s, codec_spkr_i2s, gpio, gsbi1, gsbi2, gsbi3, gsbi4,
+ cam_mclk, codec_mic_i2s, codec_spkr_i2s, gp_clk_0a, gp_clk_0b, gp_clk_1a,
+ gp_clk_1b, gp_clk_2a, gp_clk_2b, gpio, gsbi1, gsbi2, gsbi3, gsbi4,
gsbi4_cam_i2c, gsbi5, gsbi5_spi_cs1, gsbi5_spi_cs2, gsbi5_spi_cs3, gsbi6,
gsbi6_spi_cs1, gsbi6_spi_cs2, gsbi6_spi_cs3, gsbi7, gsbi7_spi_cs1,
gsbi7_spi_cs2, gsbi7_spi_cs3, gsbi_cam_i2c, hdmi, mi2s, riva_bt, riva_fm,
diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,ipq4019-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/qcom,ipq4019-pinctrl.txt
index cfb8500dd56b..93374f478b9e 100644
--- a/Documentation/devicetree/bindings/pinctrl/qcom,ipq4019-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,ipq4019-pinctrl.txt
@@ -50,7 +50,11 @@ Valid values for qcom,pins are:
Supports mux, bias and drive-strength
Valid values for qcom,function are:
-gpio, blsp_uart1, blsp_i2c0, blsp_i2c1, blsp_uart0, blsp_spi1, blsp_spi0
+aud_pin, audio_pwm, blsp_i2c0, blsp_i2c1, blsp_spi0, blsp_spi1, blsp_uart0,
+blsp_uart1, chip_rst, gpio, i2s_rx, i2s_spdif_in, i2s_spdif_out, i2s_td, i2s_tx,
+jtag, led0, led1, led2, led3, led4, led5, led6, led7, led8, led9, led10, led11,
+mdc, mdio, pcie, pmu, prng_rosc, qpic, rgmii, rmii, sdio, smart0, smart1,
+smart2, smart3, tm, wifi0, wifi1
Example:
diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,ipq8074-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/qcom,ipq8074-pinctrl.txt
new file mode 100644
index 000000000000..407b9443629d
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,ipq8074-pinctrl.txt
@@ -0,0 +1,172 @@
+Qualcomm Technologies, Inc. IPQ8074 TLMM block
+
+This binding describes the Top Level Mode Multiplexer block found in the
+IPQ8074 platform.
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: must be "qcom,ipq8074-pinctrl"
+
+- reg:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: the base address and size of the TLMM register space.
+
+- interrupts:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: should specify the TLMM summary IRQ.
+
+- interrupt-controller:
+ Usage: required
+ Value type: <none>
+ Definition: identifies this node as an interrupt controller
+
+- #interrupt-cells:
+ Usage: required
+ Value type: <u32>
+ Definition: must be 2. Specifying the pin number and flags, as defined
+ in <dt-bindings/interrupt-controller/irq.h>
+
+- gpio-controller:
+ Usage: required
+ Value type: <none>
+ Definition: identifies this node as a gpio controller
+
+- #gpio-cells:
+ Usage: required
+ Value type: <u32>
+ Definition: must be 2. Specifying the pin number and flags, as defined
+ in <dt-bindings/gpio/gpio.h>
+
+Please refer to ../gpio/gpio.txt and ../interrupt-controller/interrupts.txt for
+a general description of GPIO and interrupt bindings.
+
+Please refer to pinctrl-bindings.txt in this directory for details of the
+common pinctrl bindings used by client devices, including the meaning of the
+phrase "pin configuration node".
+
+The pin configuration nodes act as a container for an arbitrary number of
+subnodes. Each of these subnodes represents some desired configuration for a
+pin, a group, or a list of pins or groups. This configuration can include the
+mux function to select on those pin(s)/group(s), and various pin configuration
+parameters, such as pull-up, drive strength, etc.
+
+
+PIN CONFIGURATION NODES:
+
+The name of each subnode is not important; all subnodes should be enumerated
+and processed purely based on their content.
+
+Each subnode only affects those parameters that are explicitly listed. In
+other words, a subnode that lists a mux function but no pin configuration
+parameters implies no information about any pin configuration parameters.
+Similarly, a pin subnode that describes a pullup parameter implies no
+information about e.g. the mux function.
+
+
+The following generic properties as defined in pinctrl-bindings.txt are valid
+to specify in a pin configuration subnode:
+
+- pins:
+ Usage: required
+ Value type: <string-array>
+ Definition: List of gpio pins affected by the properties specified in
+ this subnode. Valid pins are:
+ gpio0-gpio69
+
+- function:
+ Usage: required
+ Value type: <string>
+ Definition: Specify the alternative function to be configured for the
+ specified pins. Functions are only valid for gpio pins.
+ Valid values are:
+ atest_char, atest_char0, atest_char1, atest_char2,
+ atest_char3, audio_rxbclk, audio_rxd, audio_rxfsync,
+ audio_rxmclk, audio_txbclk, audio_txd, audio_txfsync,
+ audio_txmclk, blsp0_i2c, blsp0_spi, blsp0_uart, blsp1_i2c,
+ blsp1_spi, blsp1_uart, blsp2_i2c, blsp2_spi, blsp2_uart,
+ blsp3_i2c, blsp3_spi, blsp3_spi0, blsp3_spi1, blsp3_spi2,
+ blsp3_spi3, blsp3_uart, blsp4_i2c0, blsp4_i2c1, blsp4_spi0,
+ blsp4_spi1, blsp4_uart0, blsp4_uart1, blsp5_i2c, blsp5_spi,
+ blsp5_uart, burn0, burn1, cri_trng, cri_trng0, cri_trng1,
+ cxc0, cxc1, dbg_out, gcc_plltest, gcc_tlmm, gpio, ldo_en,
+ ldo_update, led0, led1, led2, mac0_sa0, mac0_sa1, mac1_sa0,
+ mac1_sa1, mac1_sa2, mac1_sa3, mac2_sa0, mac2_sa1, mdc,
+ mdio, pcie0_clk, pcie0_rst, pcie0_wake, pcie1_clk,
+ pcie1_rst, pcie1_wake, pcm_drx, pcm_dtx, pcm_fsync,
+ pcm_pclk, pcm_zsi0, pcm_zsi1, prng_rosc, pta1_0, pta1_1,
+ pta1_2, pta2_0, pta2_1, pta2_2, pwm0, pwm1, pwm2, pwm3,
+ qdss_cti_trig_in_a0, qdss_cti_trig_in_a1,
+ qdss_cti_trig_in_b0, qdss_cti_trig_in_b1,
+ qdss_cti_trig_out_a0, qdss_cti_trig_out_a1,
+ qdss_cti_trig_out_b0, qdss_cti_trig_out_b1,
+ qdss_traceclk_a, qdss_traceclk_b, qdss_tracectl_a,
+ qdss_tracectl_b, qdss_tracedata_a, qdss_tracedata_b,
+ qpic, rx0, rx1, rx2, sd_card, sd_write, tsens_max, wci2a,
+ wci2b, wci2c, wci2d
+
+- bias-disable:
+ Usage: optional
+ Value type: <none>
+ Definition: The specified pins should be configued as no pull.
+
+- bias-pull-down:
+ Usage: optional
+ Value type: <none>
+ Definition: The specified pins should be configued as pull down.
+
+- bias-pull-up:
+ Usage: optional
+ Value type: <none>
+ Definition: The specified pins should be configued as pull up.
+
+- output-high:
+ Usage: optional
+ Value type: <none>
+ Definition: The specified pins are configured in output mode, driven
+ high.
+
+- output-low:
+ Usage: optional
+ Value type: <none>
+ Definition: The specified pins are configured in output mode, driven
+ low.
+
+- drive-strength:
+ Usage: optional
+ Value type: <u32>
+ Definition: Selects the drive strength for the specified pins, in mA.
+ Valid values are: 2, 4, 6, 8, 10, 12, 14 and 16
+
+Example:
+
+ tlmm: pinctrl@1000000 {
+ compatible = "qcom,ipq8074-pinctrl";
+ reg = <0x1000000 0x300000>;
+ interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ uart2: uart2-default {
+ mux {
+ pins = "gpio23", "gpio24";
+ function = "blsp4_uart1";
+ };
+
+ rx {
+ pins = "gpio23";
+ drive-strength = <4>;
+ bias-disable;
+ };
+
+ tx {
+ pins = "gpio24";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.txt b/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.txt
index 8d893a874634..5b12c57e7f02 100644
--- a/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.txt
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.txt
@@ -16,6 +16,7 @@ PMIC's from Qualcomm.
"qcom,pm8941-gpio"
"qcom,pm8994-gpio"
"qcom,pma8084-gpio"
+ "qcom,pmi8994-gpio"
And must contain either "qcom,spmi-gpio" or "qcom,ssbi-gpio"
if the device is on an spmi bus or an ssbi bus respectively
@@ -85,6 +86,7 @@ to specify in a pin configuration subnode:
gpio1-gpio36 for pm8941
gpio1-gpio22 for pm8994
gpio1-gpio22 for pma8084
+ gpio1-gpio10 for pmi8994
- function:
Usage: required
@@ -98,7 +100,10 @@ to specify in a pin configuration subnode:
"dtest1",
"dtest2",
"dtest3",
- "dtest4"
+ "dtest4",
+ And following values are supported by LV/MV GPIO subtypes:
+ "func3",
+ "func4"
- bias-disable:
Usage: optional
@@ -183,6 +188,25 @@ to specify in a pin configuration subnode:
Value type: <none>
Definition: The specified pins are configured in open-source mode.
+- qcom,analog-pass:
+ Usage: optional
+ Value type: <none>
+ Definition: The specified pins are configured in analog-pass-through mode.
+
+- qcom,atest:
+ Usage: optional
+ Value type: <u32>
+ Definition: Selects ATEST rail to route to GPIO when it's configured
+ in analog-pass-through mode.
+ Valid values are 1-4 corresponding to ATEST1 to ATEST4.
+
+- qcom,dtest-buffer:
+ Usage: optional
+ Value type: <u32>
+ Definition: Selects DTEST rail to route to GPIO when it's configured
+ as digital input.
+ Valid values are 1-4 corresponding to DTEST1 to DTEST4.
+
Example:
pm8921_gpio: gpio@150 {
diff --git a/Documentation/devicetree/bindings/pinctrl/renesas,pfc-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/renesas,pfc-pinctrl.txt
index 13df9498311a..9b4f8041c36a 100644
--- a/Documentation/devicetree/bindings/pinctrl/renesas,pfc-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/renesas,pfc-pinctrl.txt
@@ -13,6 +13,8 @@ Required Properties:
- "renesas,pfc-emev2": for EMEV2 (EMMA Mobile EV2) compatible pin-controller.
- "renesas,pfc-r8a73a4": for R8A73A4 (R-Mobile APE6) compatible pin-controller.
- "renesas,pfc-r8a7740": for R8A7740 (R-Mobile A1) compatible pin-controller.
+ - "renesas,pfc-r8a7743": for R8A7743 (RZ/G1M) compatible pin-controller.
+ - "renesas,pfc-r8a7745": for R8A7745 (RZ/G1E) compatible pin-controller.
- "renesas,pfc-r8a7778": for R8A7778 (R-Mobile M1) compatible pin-controller.
- "renesas,pfc-r8a7779": for R8A7779 (R-Car H1) compatible pin-controller.
- "renesas,pfc-r8a7790": for R8A7790 (R-Car H2) compatible pin-controller.
@@ -22,6 +24,7 @@ Required Properties:
- "renesas,pfc-r8a7794": for R8A7794 (R-Car E2) compatible pin-controller.
- "renesas,pfc-r8a7795": for R8A7795 (R-Car H3) compatible pin-controller.
- "renesas,pfc-r8a7796": for R8A7796 (R-Car M3-W) compatible pin-controller.
+ - "renesas,pfc-r8a77995": for R8A77995 (R-Car D3) compatible pin-controller.
- "renesas,pfc-sh73a0": for SH73A0 (SH-Mobile AG5) compatible pin-controller.
- reg: Base address and length of each memory resource used by the pin
@@ -109,7 +112,7 @@ Examples
Example 1: SH73A0 (SH-Mobile AG5) pin controller node
- pfc: pfc@e6050000 {
+ pfc: pin-controller@e6050000 {
compatible = "renesas,pfc-sh73a0";
reg = <0xe6050000 0x8000>,
<0xe605801c 0x1c>;
@@ -170,5 +173,4 @@ Example 4: KZM-A9-GT (SH-Mobile AG5) default pin state for the MMCIF device
bus-width = <8>;
vmmc-supply = <&reg_1p8v>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/pinctrl/renesas,rza1-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/renesas,rza1-pinctrl.txt
new file mode 100644
index 000000000000..43e21474528a
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/renesas,rza1-pinctrl.txt
@@ -0,0 +1,221 @@
+Renesas RZ/A1 combined Pin and GPIO controller
+
+The Renesas SoCs of the RZ/A1 family feature a combined Pin and GPIO controller,
+named "Ports" in the hardware reference manual.
+Pin multiplexing and GPIO configuration is performed on a per-pin basis
+writing configuration values to per-port register sets.
+Each "port" features up to 16 pins, each of them configurable for GPIO
+function (port mode) or in alternate function mode.
+Up to 8 different alternate function modes exist for each single pin.
+
+Pin controller node
+-------------------
+
+Required properties:
+ - compatible
+ this shall be "renesas,r7s72100-ports".
+
+ - reg
+ address base and length of the memory area where the pin controller
+ hardware is mapped to.
+
+Example:
+Pin controller node for RZ/A1H SoC (r7s72100)
+
+pinctrl: pin-controller@fcfe3000 {
+ compatible = "renesas,r7s72100-ports";
+
+ reg = <0xfcfe3000 0x4230>;
+};
+
+Sub-nodes
+---------
+
+The child nodes of the pin controller node describe a pin multiplexing
+function or a GPIO controller alternatively.
+
+- Pin multiplexing sub-nodes:
+ A pin multiplexing sub-node describes how to configure a set of
+ (or a single) pin in some desired alternate function mode.
+ A single sub-node may define several pin configurations.
+ A few alternate function require special pin configuration flags to be
+ supplied along with the alternate function configuration number.
+ The hardware reference manual specifies when a pin function requires
+ "software IO driven" mode to be specified. To do so use the generic
+ properties from the <include/linux/pinctrl/pinconf_generic.h> header file
+ to instruct the pin controller to perform the desired pin configuration
+ operation.
+ Please refer to pinctrl-bindings.txt to get to know more on generic
+ pin properties usage.
+
+ The allowed generic formats for a pin multiplexing sub-node are the
+ following ones:
+
+ node-1 {
+ pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ... ;
+ GENERIC_PINCONFIG;
+ };
+
+ node-2 {
+ sub-node-1 {
+ pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ... ;
+ GENERIC_PINCONFIG;
+ };
+
+ sub-node-2 {
+ pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ... ;
+ GENERIC_PINCONFIG;
+ };
+
+ ...
+
+ sub-node-n {
+ pinmux = <PIN_ID_AND_MUX>, <PIN_ID_AND_MUX>, ... ;
+ GENERIC_PINCONFIG;
+ };
+ };
+
+ Use the second format when pins part of the same logical group need to have
+ different generic pin configuration flags applied.
+
+ Client sub-nodes shall refer to pin multiplexing sub-nodes using the phandle
+ of the most external one.
+
+ Eg.
+
+ client-1 {
+ ...
+ pinctrl-0 = <&node-1>;
+ ...
+ };
+
+ client-2 {
+ ...
+ pinctrl-0 = <&node-2>;
+ ...
+ };
+
+ Required properties:
+ - pinmux:
+ integer array representing pin number and pin multiplexing configuration.
+ When a pin has to be configured in alternate function mode, use this
+ property to identify the pin by its global index, and provide its
+ alternate function configuration number along with it.
+ When multiple pins are required to be configured as part of the same
+ alternate function they shall be specified as members of the same
+ argument list of a single "pinmux" property.
+ Helper macros to ease assembling the pin index from its position
+ (port where it sits on and pin number) and alternate function identifier
+ are provided by the pin controller header file at:
+ <include/dt-bindings/pinctrl/r7s72100-pinctrl.h>
+ Integers values in "pinmux" argument list are assembled as:
+ ((PORT * 16 + PIN) | MUX_FUNC << 16)
+
+ Optional generic properties:
+ - input-enable:
+ enable input bufer for pins requiring software driven IO input
+ operations.
+ - output-high:
+ enable output buffer for pins requiring software driven IO output
+ operations. output-low can be used alternatively, as line value is
+ ignored by the driver.
+
+ The hardware reference manual specifies when a pin has to be configured to
+ work in bi-directional mode and when the IO direction has to be specified
+ by software. Bi-directional pins are managed by the pin controller driver
+ internally, while software driven IO direction has to be explicitly
+ selected when multiple options are available.
+
+ Example:
+ A serial communication interface with a TX output pin and an RX input pin.
+
+ &pinctrl {
+ scif2_pins: serial2 {
+ pinmux = <RZA1_PINMUX(3, 0, 6)>, <RZA1_PINMUX(3, 2, 4)>;
+ };
+ };
+
+ Pin #0 on port #3 is configured as alternate function #6.
+ Pin #2 on port #3 is configured as alternate function #4.
+
+ Example 2:
+ I2c master: both SDA and SCL pins need bi-directional operations
+
+ &pinctrl {
+ i2c2_pins: i2c2 {
+ pinmux = <RZA1_PINMUX(1, 4, 1)>, <RZA1_PINMUX(1, 5, 1)>;
+ };
+ };
+
+ Pin #4 on port #1 is configured as alternate function #1.
+ Pin #5 on port #1 is configured as alternate function #1.
+ Both need to work in bi-directional mode, the driver manages this internally.
+
+ Example 3:
+ Multi-function timer input and output compare pins.
+ Configure TIOC0A as software driven input and TIOC0B as software driven
+ output.
+
+ &pinctrl {
+ tioc0_pins: tioc0 {
+ tioc0_input_pins {
+ pinumx = <RZA1_PINMUX(4, 0, 2)>;
+ input-enable;
+ };
+
+ tioc0_output_pins {
+ pinmux = <RZA1_PINMUX(4, 1, 1)>;
+ output-enable;
+ };
+ };
+ };
+
+ &tioc0 {
+ ...
+ pinctrl-0 = <&tioc0_pins>;
+ ...
+ };
+
+ Pin #0 on port #4 is configured as alternate function #2 with IO direction
+ specified by software as input.
+ Pin #1 on port #4 is configured as alternate function #1 with IO direction
+ specified by software as output.
+
+- GPIO controller sub-nodes:
+ Each port of the r7s72100 pin controller hardware is itself a GPIO controller.
+ Different SoCs have different numbers of available pins per port, but
+ generally speaking, each of them can be configured in GPIO ("port") mode
+ on this hardware.
+ Describe GPIO controllers using sub-nodes with the following properties.
+
+ Required properties:
+ - gpio-controller
+ empty property as defined by the GPIO bindings documentation.
+ - #gpio-cells
+ number of cells required to identify and configure a GPIO.
+ Shall be 2.
+ - gpio-ranges
+ Describes a GPIO controller specifying its specific pin base, the pin
+ base in the global pin numbering space, and the number of controlled
+ pins, as defined by the GPIO bindings documentation. Refer to
+ Documentation/devicetree/bindings/gpio/gpio.txt file for a more detailed
+ description.
+
+ Example:
+ A GPIO controller node, controlling 16 pins indexed from 0.
+ The GPIO controller base in the global pin indexing space is pin 48, thus
+ pins [0 - 15] on this controller map to pins [48 - 63] in the global pin
+ indexing space.
+
+ port3: gpio-3 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl 0 48 16>;
+ };
+
+ A device node willing to use pins controlled by this GPIO controller, shall
+ refer to it as follows:
+
+ led1 {
+ gpios = <&port3 10 GPIO_ACTIVE_LOW>;
+ };
diff --git a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt
index ee01ab58224d..4864e3a74de3 100644
--- a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt
@@ -24,6 +24,7 @@ Required properties for iomux controller:
"rockchip,rk2928-pinctrl": for Rockchip RK2928
"rockchip,rk3066a-pinctrl": for Rockchip RK3066a
"rockchip,rk3066b-pinctrl": for Rockchip RK3066b
+ "rockchip,rk3128-pinctrl": for Rockchip RK3128
"rockchip,rk3188-pinctrl": for Rockchip RK3188
"rockchip,rk3228-pinctrl": for Rockchip RK3228
"rockchip,rk3288-pinctrl": for Rockchip RK3288
@@ -120,7 +121,6 @@ uart2: serial@20064000 {
reg-shift = <2>;
reg-io-width = <1>;
clocks = <&mux_uart2>;
- status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&uart2_xfer>;
diff --git a/Documentation/devicetree/bindings/pinctrl/sprd,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/sprd,pinctrl.txt
new file mode 100644
index 000000000000..b1cea7a3a071
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/sprd,pinctrl.txt
@@ -0,0 +1,83 @@
+* Spreadtrum Pin Controller
+
+The Spreadtrum pin controller are organized in 3 blocks (types).
+
+The first block comprises some global control registers, and each
+register contains several bit fields with one bit or several bits
+to configure for some global common configuration, such as domain
+pad driving level, system control select and so on ("domain pad
+driving level": One pin can output 3.0v or 1.8v, depending on the
+related domain pad driving selection, if the related domain pad
+slect 3.0v, then the pin can output 3.0v. "system control" is used
+to choose one function (like: UART0) for which system, since we
+have several systems (AP/CP/CM4) on one SoC.).
+
+There are too much various configuration that we can not list all
+of them, so we can not make every Spreadtrum-special configuration
+as one generic configuration, and maybe it will add more strange
+global configuration in future. Then we add one "sprd,control" to
+set these various global control configuration, and we need use
+magic number for this property.
+
+Moreover we recognise every fields comprising one bit or several
+bits in one global control register as one pin, thus we should
+record every pin's bit offset, bit width and register offset to
+configure this field (pin).
+
+The second block comprises some common registers which have unified
+register definition, and each register described one pin is used
+to configure the pin sleep mode, function select and sleep related
+configuration.
+
+Now we have 4 systems for sleep mode on SC9860 SoC: AP system,
+PUBCP system, TGLDSP system and AGDSP system. And the pin sleep
+related configuration are:
+- input-enable
+- input-disable
+- output-high
+- output-low
+- bias-pull-up
+- bias-pull-down
+
+In some situation we need set the pin sleep mode and pin sleep related
+configuration, to set the pin sleep related configuration automatically
+by hardware when the system specified by sleep mode goes into deep
+sleep mode. For example, if we set the pin sleep mode as PUBCP_SLEEP
+and set the pin sleep related configuration as "input-enable", which
+means when PUBCP system goes into deep sleep mode, this pin will be set
+input enable automatically.
+
+Moreover we can not use the "sleep" state, since some systems (like:
+PUBCP system) do not run linux kernel OS (only AP system run linux
+kernel on SC9860 platform), then we can not select "sleep" state
+when the PUBCP system goes into deep sleep mode. Thus we introduce
+"sprd,sleep-mode" property to set pin sleep mode.
+
+The last block comprises some misc registers which also have unified
+register definition, and each register described one pin is used to
+configure drive strength, pull up/down and so on. Especially for pull
+up, we have two kind pull up resistor: 20K and 4.7K.
+
+Required properties for Spreadtrum pin controller:
+- compatible: "sprd,<soc>-pinctrl"
+ Please refer to each sprd,<soc>-pinctrl.txt binding doc for supported SoCs.
+- reg: The register address of pin controller device.
+- pins : An array of pin names.
+
+Optional properties:
+- function: Specified the function name.
+- drive-strength: Drive strength in mA.
+- input-schmitt-disable: Enable schmitt-trigger mode.
+- input-schmitt-enable: Disable schmitt-trigger mode.
+- bias-disable: Disable pin bias.
+- bias-pull-down: Pull down on pin.
+- bias-pull-up: Pull up on pin.
+- input-enable: Enable pin input.
+- input-disable: Enable pin output.
+- output-high: Set the pin as an output level high.
+- output-low: Set the pin as an output level low.
+- sleep-hardware-state: Indicate these configs in this state are sleep related.
+- sprd,control: Control values referring to databook for global control pins.
+- sprd,sleep-mode: Sleep mode selection.
+
+Please refer to each sprd,<soc>-pinctrl.txt binding doc for supported values.
diff --git a/Documentation/devicetree/bindings/pinctrl/sprd,sc9860-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/sprd,sc9860-pinctrl.txt
new file mode 100644
index 000000000000..5a628333d52f
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/sprd,sc9860-pinctrl.txt
@@ -0,0 +1,70 @@
+* Spreadtrum SC9860 Pin Controller
+
+Please refer to sprd,pinctrl.txt in this directory for common binding part
+and usage.
+
+Required properties:
+- compatible: Must be "sprd,sc9860-pinctrl".
+- reg: The register address of pin controller device.
+- pins : An array of strings, each string containing the name of a pin.
+
+Optional properties:
+- function: A string containing the name of the function, values must be
+ one of: "func1", "func2", "func3" and "func4".
+- drive-strength: Drive strength in mA. Supported values: 2, 4, 6, 8, 10,
+ 12, 14, 16, 20, 21, 24, 25, 27, 29, 31 and 33.
+- input-schmitt-disable: Enable schmitt-trigger mode.
+- input-schmitt-enable: Disable schmitt-trigger mode.
+- bias-disable: Disable pin bias.
+- bias-pull-down: Pull down on pin.
+- bias-pull-up: Pull up on pin. Supported values: 20000 for pull-up resistor
+ is 20K and 4700 for pull-up resistor is 4.7K.
+- input-enable: Enable pin input.
+- input-disable: Enable pin output.
+- output-high: Set the pin as an output level high.
+- output-low: Set the pin as an output level low.
+- sleep-hardware-state: Indicate these configs in this state are sleep related.
+- sprd,control: Control values referring to databook for global control pins.
+- sprd,sleep-mode: Choose the pin sleep mode, and supported values are:
+ AP_SLEEP, PUBCP_SLEEP, TGLDSP_SLEEP and AGDSP_SLEEP.
+
+Pin sleep mode definition:
+enum pin_sleep_mode {
+ AP_SLEEP = BIT(0),
+ PUBCP_SLEEP = BIT(1),
+ TGLDSP_SLEEP = BIT(2),
+ AGDSP_SLEEP = BIT(3),
+};
+
+Example:
+pin_controller: pinctrl@402a0000 {
+ compatible = "sprd,sc9860-pinctrl";
+ reg = <0x402a0000 0x10000>;
+
+ grp1: sd0 {
+ pins = "SC9860_VIO_SD2_IRTE", "SC9860_VIO_SD0_IRTE";
+ sprd,control = <0x1>;
+ };
+
+ grp2: rfctl_33 {
+ pins = "SC9860_RFCTL33";
+ function = "func2";
+ sprd,sleep-mode = <AP_SLEEP | PUBCP_SLEEP>;
+ grp2_sleep_mode: rfctl_33_sleep {
+ pins = "SC9860_RFCTL33";
+ sleep-hardware-state;
+ output-low;
+ }
+ };
+
+ grp3: rfctl_misc_20 {
+ pins = "SC9860_RFCTL20_MISC";
+ drive-strength = <10>;
+ bias-pull-up = <4700>;
+ grp3_sleep_mode: rfctl_misc_sleep {
+ pins = "SC9860_RFCTL20_MISC";
+ sleep-hardware-state;
+ bias-pull-up;
+ }
+ };
+};
diff --git a/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt
index d907a74f8dc0..33e3d3c47552 100644
--- a/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt
@@ -180,5 +180,4 @@ pin-controller {
&usart1 {
pinctrl-0 = <&usart1_pins_a>;
pinctrl-names = "default";
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/power/actions,owl-sps.txt b/Documentation/devicetree/bindings/power/actions,owl-sps.txt
new file mode 100644
index 000000000000..007b9a7ae723
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/actions,owl-sps.txt
@@ -0,0 +1,17 @@
+Actions Semi Owl Smart Power System (SPS)
+
+Required properties:
+- compatible : "actions,s500-sps" for S500
+- reg : Offset and length of the register set for the device.
+- #power-domain-cells : Must be 1.
+ See macros in:
+ include/dt-bindings/power/owl-s500-powergate.h for S500
+
+
+Example:
+
+ sps: power-controller@b01b0100 {
+ compatible = "actions,s500-sps";
+ reg = <0xb01b0100 0x100>;
+ #power-domain-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/power/power-controller.txt b/Documentation/devicetree/bindings/power/power-controller.txt
index 4f7a3bc9c407..e45affea8078 100644
--- a/Documentation/devicetree/bindings/power/power-controller.txt
+++ b/Documentation/devicetree/bindings/power/power-controller.txt
@@ -13,6 +13,5 @@ Example:
act8846: act8846@5 {
compatible = "active-semi,act8846";
- status = "okay";
system-power-controller;
}
diff --git a/Documentation/devicetree/bindings/power/renesas,apmu.txt b/Documentation/devicetree/bindings/power/renesas,apmu.txt
index 84404c9edff7..af21502e939c 100644
--- a/Documentation/devicetree/bindings/power/renesas,apmu.txt
+++ b/Documentation/devicetree/bindings/power/renesas,apmu.txt
@@ -1,12 +1,13 @@
DT bindings for the Renesas Advanced Power Management Unit
-Renesas R-Car line of SoCs utilize one or more APMU hardware units
+Renesas R-Car and RZ/G1 SoCs utilize one or more APMU hardware units
for CPU core power domain control including SMP boot and CPU Hotplug.
Required properties:
- compatible: Should be "renesas,<soctype>-apmu", "renesas,apmu" as fallback.
Examples with soctypes are:
+ - "renesas,r8a7743-apmu" (RZ/G1M)
- "renesas,r8a7790-apmu" (R-Car H2)
- "renesas,r8a7791-apmu" (R-Car M2-W)
- "renesas,r8a7792-apmu" (R-Car V2H)
diff --git a/Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt b/Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt
index d91715bc8d52..98cc8c09d02d 100644
--- a/Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt
+++ b/Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt
@@ -17,6 +17,7 @@ Required properties:
- "renesas,r8a7794-sysc" (R-Car E2)
- "renesas,r8a7795-sysc" (R-Car H3)
- "renesas,r8a7796-sysc" (R-Car M3-W)
+ - "renesas,r8a77995-sysc" (R-Car D3)
- reg: Address start and address range for the device.
- #power-domain-cells: Must be 1.
diff --git a/Documentation/devicetree/bindings/power/reset/st-reset.txt b/Documentation/devicetree/bindings/power/reset/st-reset.txt
index 83734dc3a389..b63948737d80 100644
--- a/Documentation/devicetree/bindings/power/reset/st-reset.txt
+++ b/Documentation/devicetree/bindings/power/reset/st-reset.txt
@@ -8,5 +8,4 @@ Example node:
restart {
compatible = "st,stih407-restart";
st,syscfg = <&syscfg_sbc_reg>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/power/rockchip-io-domain.txt b/Documentation/devicetree/bindings/power/rockchip-io-domain.txt
index d3a5a93a65cd..4a4766e9c254 100644
--- a/Documentation/devicetree/bindings/power/rockchip-io-domain.txt
+++ b/Documentation/devicetree/bindings/power/rockchip-io-domain.txt
@@ -32,12 +32,15 @@ SoC is on the same page.
Required properties:
- compatible: should be one of:
- "rockchip,rk3188-io-voltage-domain" for rk3188
+ - "rockchip,rk3228-io-voltage-domain" for rk3228
- "rockchip,rk3288-io-voltage-domain" for rk3288
- "rockchip,rk3328-io-voltage-domain" for rk3328
- "rockchip,rk3368-io-voltage-domain" for rk3368
- "rockchip,rk3368-pmu-io-voltage-domain" for rk3368 pmu-domains
- "rockchip,rk3399-io-voltage-domain" for rk3399
- "rockchip,rk3399-pmu-io-voltage-domain" for rk3399 pmu-domains
+ - "rockchip,rv1108-io-voltage-domain" for rv1108
+ - "rockchip,rv1108-pmu-io-voltage-domain" for rv1108 pmu-domains
Deprecated properties:
- rockchip,grf: phandle to the syscon managing the "general register files"
@@ -59,6 +62,12 @@ Possible supplies for rk3188:
- vccio1-supply: The supply connected to VCCIO1.
Sometimes also labeled VCCIO1 and VCCIO2.
+Possible supplies for rk3228:
+- vccio1-supply: The supply connected to VCCIO1.
+- vccio2-supply: The supply connected to VCCIO2.
+- vccio3-supply: The supply connected to VCCIO3.
+- vccio4-supply: The supply connected to VCCIO4.
+
Possible supplies for rk3288:
- audio-supply: The supply connected to APIO4_VDD.
- bb-supply: The supply connected to APIO5_VDD.
diff --git a/Documentation/devicetree/bindings/power/supply/act8945a-charger.txt b/Documentation/devicetree/bindings/power/supply/act8945a-charger.txt
index de78d761ce44..b86ecada4f84 100644
--- a/Documentation/devicetree/bindings/power/supply/act8945a-charger.txt
+++ b/Documentation/devicetree/bindings/power/supply/act8945a-charger.txt
@@ -29,7 +29,6 @@ Example:
pmic@5b {
compatible = "active-semi,act8945a";
reg = <0x5b>;
- status = "okay";
charger {
compatible = "active-semi,act8945a-charger";
@@ -43,6 +42,5 @@ Example:
active-semi,input-voltage-threshold-microvolt = <6600>;
active-semi,precondition-timeout = <40>;
active-semi,total-timeout = <3>;
- status = "okay";
};
};
diff --git a/Documentation/devicetree/bindings/power/supply/battery.txt b/Documentation/devicetree/bindings/power/supply/battery.txt
new file mode 100644
index 000000000000..f4d3b4a10b43
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/battery.txt
@@ -0,0 +1,57 @@
+Battery Characteristics
+
+The devicetree battery node provides static battery characteristics.
+In smart batteries, these are typically stored in non-volatile memory
+on a fuel gauge chip. The battery node should be used where there is
+no appropriate non-volatile memory, or it is unprogrammed/incorrect.
+
+Upstream dts files should not include battery nodes, unless the battery
+represented cannot easily be replaced in the system by one of a
+different type. This prevents unpredictable, potentially harmful,
+behavior should a replacement that changes the battery type occur
+without a corresponding update to the dtb.
+
+Required Properties:
+ - compatible: Must be "simple-battery"
+
+Optional Properties:
+ - voltage-min-design-microvolt: drained battery voltage
+ - energy-full-design-microwatt-hours: battery design energy
+ - charge-full-design-microamp-hours: battery design capacity
+ - precharge-current-microamp: current for pre-charge phase
+ - charge-term-current-microamp: current for charge termination phase
+ - constant-charge-current-max-microamp: maximum constant input current
+ - constant-charge-voltage-max-microvolt: maximum constant input voltage
+
+Battery properties are named, where possible, for the corresponding
+elements in enum power_supply_property, defined in
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/linux/power_supply.h
+
+Batteries must be referenced by chargers and/or fuel-gauges
+using a phandle. The phandle's property should be named
+"monitored-battery".
+
+Example:
+
+ bat: battery {
+ compatible = "simple-battery";
+ voltage-min-design-microvolt = <3200000>;
+ energy-full-design-microwatt-hours = <5290000>;
+ charge-full-design-microamp-hours = <1430000>;
+ precharge-current-microamp = <256000>;
+ charge-term-current-microamp = <128000>;
+ constant-charge-current-max-microamp = <900000>;
+ constant-charge-voltage-max-microvolt = <4200000>;
+ };
+
+ charger: charger@11 {
+ ....
+ monitored-battery = <&bat>;
+ ...
+ };
+
+ fuel_gauge: fuel-gauge@22 {
+ ....
+ monitored-battery = <&bat>;
+ ...
+ };
diff --git a/Documentation/devicetree/bindings/power/supply/bq24190.txt b/Documentation/devicetree/bindings/power/supply/bq24190.txt
new file mode 100644
index 000000000000..9e517d307070
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/bq24190.txt
@@ -0,0 +1,51 @@
+TI BQ24190 Li-Ion Battery Charger
+
+Required properties:
+- compatible: contains one of the following:
+ * "ti,bq24190"
+ * "ti,bq24192i"
+- reg: integer, I2C address of the charger.
+- interrupts[-extended]: configuration for charger INT pin.
+
+Optional properties:
+- monitored-battery: phandle of battery characteristics devicetree node
+ The charger uses the following battery properties:
+ + precharge-current-microamp: maximum charge current during precharge
+ phase (typically 20% of battery capacity).
+ + charge-term-current-microamp: a charge cycle terminates when the
+ battery voltage is above recharge threshold, and the current is below
+ this setting (typically 10% of battery capacity).
+ See also Documentation/devicetree/bindings/power/supply/battery.txt
+- ti,system-minimum-microvolt: when power is connected and the battery is below
+ minimum system voltage, the system will be regulated above this setting.
+
+Notes:
+- Some circuit boards wire the chip's "OTG" pin high (enabling 500mA default
+ charge current on USB SDP ports, among other features). To simulate this on
+ boards that wire the pin to a GPIO, set a gpio-hog.
+
+Example:
+
+ bat: battery {
+ compatible = "simple-battery";
+ precharge-current-microamp = <256000>;
+ charge-term-current-microamp = <128000>;
+ // etc.
+ };
+
+ bq24190: charger@6a {
+ compatible = "ti,bq24190";
+ reg = <0x6a>;
+ interrupts-extended = <&gpiochip 10 IRQ_TYPE_EDGE_FALLING>;
+ monitored-battery = <&bat>;
+ ti,system-minimum-microvolt = <3200000>;
+ };
+
+ &twl_gpio {
+ otg {
+ gpio-hog;
+ gpios = <6 0>;
+ output-high;
+ line-name = "otg-gpio";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/power/supply/bq27xxx.txt b/Documentation/devicetree/bindings/power/supply/bq27xxx.txt
index b0c95ef63e68..6858e1a804ad 100644
--- a/Documentation/devicetree/bindings/power/supply/bq27xxx.txt
+++ b/Documentation/devicetree/bindings/power/supply/bq27xxx.txt
@@ -1,7 +1,7 @@
-Binding for TI BQ27XXX fuel gauge family
+TI BQ27XXX fuel gauge family
Required properties:
-- compatible: Should contain one of the following:
+- compatible: contains one of the following:
* "ti,bq27200" - BQ27200
* "ti,bq27210" - BQ27210
* "ti,bq27500" - deprecated, use revision specific property below
@@ -26,11 +26,28 @@ Required properties:
* "ti,bq27425" - BQ27425
* "ti,bq27441" - BQ27441
* "ti,bq27621" - BQ27621
-- reg: integer, i2c address of the device.
+- reg: integer, I2C address of the fuel gauge.
+
+Optional properties:
+- monitored-battery: phandle of battery characteristics node
+ The fuel gauge uses the following battery properties:
+ + energy-full-design-microwatt-hours
+ + charge-full-design-microamp-hours
+ + voltage-min-design-microvolt
+ Both or neither of the *-full-design-*-hours properties must be set.
+ See Documentation/devicetree/bindings/power/supply/battery.txt
Example:
-bq27510g3 {
- compatible = "ti,bq27510g3";
- reg = <0x55>;
-};
+ bat: battery {
+ compatible = "simple-battery";
+ voltage-min-design-microvolt = <3200000>;
+ energy-full-design-microwatt-hours = <5290000>;
+ charge-full-design-microamp-hours = <1430000>;
+ };
+
+ bq27510g3: fuel-gauge@55 {
+ compatible = "ti,bq27510g3";
+ reg = <0x55>;
+ monitored-battery = <&bat>;
+ };
diff --git a/Documentation/devicetree/bindings/power/supply/cpcap-battery.txt b/Documentation/devicetree/bindings/power/supply/cpcap-battery.txt
new file mode 100644
index 000000000000..a04efa22da01
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/cpcap-battery.txt
@@ -0,0 +1,31 @@
+Motorola CPCAP PMIC battery driver binding
+
+Required properties:
+- compatible: Shall be "motorola,cpcap-battery"
+- interrupts: Interrupt specifier for each name in interrupt-names
+- interrupt-names: Should contain the following entries:
+ "lowbph", "lowbpl", "chrgcurr1", "battdetb"
+- io-channels: IIO ADC channel specifier for each name in io-channel-names
+- io-channel-names: Should contain the following entries:
+ "battdetb", "battp", "chg_isense", "batti"
+- power-supplies: List of phandles for power-supplying devices, as
+ described in power_supply.txt. Typically a reference
+ to cpcap_charger.
+
+Example:
+
+cpcap_battery: battery {
+ compatible = "motorola,cpcap-battery";
+ interrupts-extended = <
+ &cpcap 5 0 &cpcap 3 0
+ &cpcap 20 0 &cpcap 54 0
+ >;
+ interrupt-names =
+ "lowbph", "lowbpl",
+ "chrgcurr1", "battdetb";
+ io-channels = <&cpcap_adc 0 &cpcap_adc 1
+ &cpcap_adc 5 &cpcap_adc 6>;
+ io-channel-names = "battdetb", "battp",
+ "chg_isense", "batti";
+ power-supplies = <&cpcap_charger>;
+};
diff --git a/Documentation/devicetree/bindings/power/supply/ltc2941.txt b/Documentation/devicetree/bindings/power/supply/ltc2941.txt
index a9d7aa60558b..3b9ba147b041 100644
--- a/Documentation/devicetree/bindings/power/supply/ltc2941.txt
+++ b/Documentation/devicetree/bindings/power/supply/ltc2941.txt
@@ -1,13 +1,14 @@
-binding for LTC2941 and LTC2943 battery gauges
+binding for LTC2941, LTC2942, LTC2943 and LTC2944 battery gauges
-Both the LTC2941 and LTC2943 measure battery capacity.
-The LTC2943 is compatible with the LTC2941, it adds voltage and
-temperature monitoring, and uses a slightly different conversion
-formula for the charge counter.
+All chips measure battery capacity.
+The LTC2942 is pin compatible with the LTC2941, it adds voltage and
+temperature monitoring, and is runtime detected. LTC2943 and LTC2944
+is software compatible, uses a slightly different conversion formula
+for the charge counter and adds voltage, current and temperature monitoring.
Required properties:
-- compatible: Should contain "lltc,ltc2941" or "lltc,ltc2943" which also
- indicates the type of I2C chip attached.
+- compatible: Should contain "lltc,ltc2941", "lltc,ltc2942", "lltc,ltc2943"
+ or "lltc,ltc2944" which also indicates the type of I2C chip attached.
- reg: The 7-bit I2C address.
- lltc,resistor-sense: The sense resistor value in milli-ohms. Can be a 32-bit
negative value when the battery has been connected to the wrong end of the
diff --git a/Documentation/devicetree/bindings/power/supply/ltc3651-charger.txt b/Documentation/devicetree/bindings/power/supply/ltc3651-charger.txt
new file mode 100644
index 000000000000..71f2840e8209
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/ltc3651-charger.txt
@@ -0,0 +1,27 @@
+ltc3651-charger
+
+Required properties:
+ - compatible: "lltc,ltc3651-charger"
+ - lltc,acpr-gpios: Connect to ACPR output. See remark below.
+
+Optional properties:
+ - lltc,fault-gpios: Connect to FAULT output. See remark below.
+ - lltc,chrg-gpios: Connect to CHRG output. See remark below.
+
+The ltc3651 outputs are open-drain type and active low. The driver assumes the
+GPIO reports "active" when the output is asserted, so if the pins have been
+connected directly, the GPIO flags should be set to active low also.
+
+The driver will attempt to aquire interrupts for all GPIOs to detect changes in
+line state. If the system is not capabale of providing interrupts, the driver
+cannot report changes and userspace will need to periodically read the sysfs
+attributes to detect changes.
+
+Example:
+
+ charger: battery-charger {
+ compatible = "lltc,ltc3651-charger";
+ lltc,acpr-gpios = <&gpio0 68 GPIO_ACTIVE_LOW>;
+ lltc,fault-gpios = <&gpio0 64 GPIO_ACTIVE_LOW>;
+ lltc,chrg-gpios = <&gpio0 63 GPIO_ACTIVE_LOW>;
+ };
diff --git a/Documentation/devicetree/bindings/power/max8903-charger.txt b/Documentation/devicetree/bindings/power/supply/max8903-charger.txt
index f0f4e12b076e..bab947fef025 100644
--- a/Documentation/devicetree/bindings/power/max8903-charger.txt
+++ b/Documentation/devicetree/bindings/power/supply/max8903-charger.txt
@@ -21,5 +21,4 @@ Example:
flt-gpios = <&gpio2 2 GPIO_ACTIVE_LOW>;
chg-gpios = <&gpio3 15 GPIO_ACTIVE_LOW>;
cen-gpios = <&gpio2 5 GPIO_ACTIVE_LOW>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/power_supply/maxim,max14656.txt b/Documentation/devicetree/bindings/power/supply/maxim,max14656.txt
index e03e85ae6572..d6e8dfd0a581 100644
--- a/Documentation/devicetree/bindings/power_supply/maxim,max14656.txt
+++ b/Documentation/devicetree/bindings/power/supply/maxim,max14656.txt
@@ -12,7 +12,6 @@ Example:
clock-frequency = <50000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c2>;
- status = "okay";
max14656@35 {
compatible = "maxim,max14656";
diff --git a/Documentation/devicetree/bindings/power/wakeup-source.txt b/Documentation/devicetree/bindings/power/wakeup-source.txt
index 963c6dfd484d..3c81f78b5c27 100644
--- a/Documentation/devicetree/bindings/power/wakeup-source.txt
+++ b/Documentation/devicetree/bindings/power/wakeup-source.txt
@@ -20,13 +20,12 @@ List of legacy properties and respective binding document
1. "enable-sdio-wakeup" Documentation/devicetree/bindings/mmc/mmc.txt
2. "gpio-key,wakeup" Documentation/devicetree/bindings/input/gpio-keys{,-polled}.txt
3. "has-tpo" Documentation/devicetree/bindings/rtc/rtc-opal.txt
-4. "isil,irq2-can-wakeup-machine" Documentation/devicetree/bindings/rtc/isil,isl12057.txt
-5. "linux,wakeup" Documentation/devicetree/bindings/input/gpio-matrix-keypad.txt
+4. "linux,wakeup" Documentation/devicetree/bindings/input/gpio-matrix-keypad.txt
Documentation/devicetree/bindings/mfd/tc3589x.txt
Documentation/devicetree/bindings/input/ads7846.txt
-6. "linux,keypad-wakeup" Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt
-7. "linux,input-wakeup" Documentation/devicetree/bindings/input/samsung-keypad.txt
-8. "nvidia,wakeup-source" Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.txt
+5. "linux,keypad-wakeup" Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt
+6. "linux,input-wakeup" Documentation/devicetree/bindings/input/samsung-keypad.txt
+7. "nvidia,wakeup-source" Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.txt
Examples
--------
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpus.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpus.txt
index f8cd2397aa04..d63ab1dec16d 100644
--- a/Documentation/devicetree/bindings/powerpc/fsl/cpus.txt
+++ b/Documentation/devicetree/bindings/powerpc/fsl/cpus.txt
@@ -3,10 +3,10 @@ Power Architecture CPU Binding
Copyright 2013 Freescale Semiconductor Inc.
Power Architecture CPUs in Freescale SOCs are represented in device trees as
-per the definition in ePAPR.
+per the definition in the Devicetree Specification.
-In addition to the ePAPR definitions, the properties defined below may be
-present on CPU nodes.
+In addition to the the Devicetree Specification definitions, the properties
+defined below may be present on CPU nodes.
PROPERTIES
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/l2cache.txt b/Documentation/devicetree/bindings/powerpc/fsl/l2cache.txt
index dc9bb3182525..8a70696395a7 100644
--- a/Documentation/devicetree/bindings/powerpc/fsl/l2cache.txt
+++ b/Documentation/devicetree/bindings/powerpc/fsl/l2cache.txt
@@ -1,7 +1,7 @@
Freescale L2 Cache Controller
L2 cache is present in Freescale's QorIQ and QorIQ Qonverge platforms.
-The cache bindings explained below are ePAPR compliant
+The cache bindings explained below are Devicetree Specification compliant
Required Properties:
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/srio-rmu.txt b/Documentation/devicetree/bindings/powerpc/fsl/srio-rmu.txt
index b9a8a2bcfae7..0496ada4bba4 100644
--- a/Documentation/devicetree/bindings/powerpc/fsl/srio-rmu.txt
+++ b/Documentation/devicetree/bindings/powerpc/fsl/srio-rmu.txt
@@ -124,8 +124,8 @@ Port-Write Unit:
A single IRQ that handles port-write conditions is
specified by this property. (Typically shared with error).
- Note: All other standard properties (see the ePAPR) are allowed
- but are optional.
+ Note: All other standard properties (see the Devicetree Specification)
+ are allowed but are optional.
Example:
rmu: rmu@d3000 {
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/srio.txt b/Documentation/devicetree/bindings/powerpc/fsl/srio.txt
index 07abf0f2f440..86ee6ea73754 100644
--- a/Documentation/devicetree/bindings/powerpc/fsl/srio.txt
+++ b/Documentation/devicetree/bindings/powerpc/fsl/srio.txt
@@ -72,7 +72,8 @@ the following properties:
represents the LIODN associated with maintenance transactions
for the port.
-Note: All other standard properties (see ePAPR) are allowed but are optional.
+Note: All other standard properties (see the Devicetree Specification)
+are allowed but are optional.
Example:
diff --git a/Documentation/devicetree/bindings/powerpc/ibm,vas.txt b/Documentation/devicetree/bindings/powerpc/ibm,vas.txt
new file mode 100644
index 000000000000..bf11d2faf7b8
--- /dev/null
+++ b/Documentation/devicetree/bindings/powerpc/ibm,vas.txt
@@ -0,0 +1,22 @@
+* IBM Powerpc Virtual Accelerator Switchboard (VAS)
+
+VAS is a hardware mechanism that allows kernel subsystems and user processes
+to directly submit compression and other requests to Nest accelerators (NX)
+or other coprocessors functions.
+
+Required properties:
+- compatible : should be "ibm,vas".
+- ibm,vas-id : A unique identifier for each instance of VAS in the system
+- reg : Should contain 4 pairs of 64-bit fields specifying the Hypervisor
+ window context start and length, OS/User window context start and length,
+ "Paste address" start and length, "Paste window id" start bit and number
+ of bits)
+
+Example:
+
+ vas@6019100000000 {
+ compatible = "ibm,vas", "ibm,power9-vas";
+ reg = <0x6019100000000 0x2000000 0x6019000000000 0x100000000 0x8000000000000 0x100000000 0x20 0x10>;
+ name = "vas";
+ ibm,vas-id = <0x1>;
+ };
diff --git a/Documentation/devicetree/bindings/powerpc/opal/sensor-groups.txt b/Documentation/devicetree/bindings/powerpc/opal/sensor-groups.txt
new file mode 100644
index 000000000000..6ad881cbffda
--- /dev/null
+++ b/Documentation/devicetree/bindings/powerpc/opal/sensor-groups.txt
@@ -0,0 +1,27 @@
+IBM OPAL Sensor Groups Binding
+-------------------------------
+
+Node: /ibm,opal/sensor-groups
+
+Description: Contains sensor groups available in the Powernv P9
+servers. Each child node indicates a sensor group.
+
+- compatible : Should be "ibm,opal-sensor-group"
+
+Each child node contains below properties:
+
+- type : String to indicate the type of sensor-group
+
+- sensor-group-id: Abstract unique identifier provided by firmware of
+ type <u32> which is used for sensor-group
+ operations like clearing the min/max history of all
+ sensors belonging to the group.
+
+- ibm,chip-id : Chip ID
+
+- sensors : Phandle array of child nodes of /ibm,opal/sensor/
+ belonging to this group
+
+- ops : Array of opal-call numbers indicating available operations on
+ sensor groups like clearing min/max, enabling/disabling sensor
+ group.
diff --git a/Documentation/devicetree/bindings/pps/pps-gpio.txt b/Documentation/devicetree/bindings/pps/pps-gpio.txt
index 40bf9c3564a5..0de23b793657 100644
--- a/Documentation/devicetree/bindings/pps/pps-gpio.txt
+++ b/Documentation/devicetree/bindings/pps/pps-gpio.txt
@@ -13,8 +13,12 @@ Optional properties:
Example:
pps {
- compatible = "pps-gpio";
- gpios = <&gpio2 6 0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pps>;
+ gpios = <&gpio1 26 GPIO_ACTIVE_HIGH>;
assert-falling-edge;
+
+ compatible = "pps-gpio";
+ status = "okay";
};
diff --git a/Documentation/devicetree/bindings/property-units.txt b/Documentation/devicetree/bindings/property-units.txt
index 12278d79f6c0..45ce054d844d 100644
--- a/Documentation/devicetree/bindings/property-units.txt
+++ b/Documentation/devicetree/bindings/property-units.txt
@@ -25,9 +25,12 @@ Distance
Electricity
----------------------------------------
-microamp : micro amps
+-microamp-hours : micro amp-hours
-ohms : Ohms
-micro-ohms : micro Ohms
+-microwatt-hours: micro Watt-hours
-microvolt : micro volts
+-picofarads : picofarads
Temperature
----------------------------------------
diff --git a/Documentation/devicetree/bindings/ptp/brcm,ptp-dte.txt b/Documentation/devicetree/bindings/ptp/brcm,ptp-dte.txt
new file mode 100644
index 000000000000..6b1075ee8a30
--- /dev/null
+++ b/Documentation/devicetree/bindings/ptp/brcm,ptp-dte.txt
@@ -0,0 +1,19 @@
+* Broadcom Digital Timing Engine(DTE) based PTP clock
+
+Required properties:
+- compatible: should contain the core compatibility string
+ and the SoC compatibility string. The SoC
+ compatibility string is to handle SoC specific
+ hardware differences.
+ Core compatibility string:
+ "brcm,ptp-dte"
+ SoC compatibility strings:
+ "brcm,iproc-ptp-dte" - for iproc based SoC's
+- reg: address and length of the DTE block's NCO registers
+
+Example:
+
+ptp: ptp-dte@180af650 {
+ compatible = "brcm,iproc-ptp-dte", "brcm,ptp-dte";
+ reg = <0x180af650 0x10>;
+};
diff --git a/Documentation/devicetree/bindings/pwm/pwm-bcm2835.txt b/Documentation/devicetree/bindings/pwm/pwm-bcm2835.txt
index cf573e85b11d..8cf87d1bfca5 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-bcm2835.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-bcm2835.txt
@@ -6,7 +6,7 @@ Required properties:
- clocks: This clock defines the base clock frequency of the PWM hardware
system, the period and the duty_cycle of the PWM signal is a multiple of
the base period.
-- #pwm-cells: Should be 2. See pwm.txt in this directory for a description of
+- #pwm-cells: Should be 3. See pwm.txt in this directory for a description of
the cells format.
Examples:
@@ -15,7 +15,7 @@ pwm@2020c000 {
compatible = "brcm,bcm2835-pwm";
reg = <0x2020c000 0x28>;
clocks = <&clk_pwm>;
- #pwm-cells = <2>;
+ #pwm-cells = <3>;
};
clocks {
diff --git a/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt b/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt
index 54c59b0560ad..ef8bd3cb67ab 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt
@@ -2,6 +2,8 @@ MediaTek PWM controller
Required properties:
- compatible: should be "mediatek,<name>-pwm":
+ - "mediatek,mt2712-pwm": found on mt2712 SoC.
+ - "mediatek,mt7622-pwm": found on mt7622 SoC.
- "mediatek,mt7623-pwm": found on mt7623 SoC.
- reg: physical base address and length of the controller's registers.
- #pwm-cells: must be 2. See pwm.txt in this directory for a description of
@@ -10,7 +12,9 @@ Required properties:
- clock-names: must contain the following:
- "top": the top clock generator
- "main": clock used by the PWM core
- - "pwm1-5": the five per PWM clocks
+ - "pwm1-8": the eight per PWM clocks for mt2712
+ - "pwm1-6": the six per PWM clocks for mt7622
+ - "pwm1-5": the five per PWM clocks for mt7623
- pinctrl-names: Must contain a "default" entry.
- pinctrl-0: One property must exist for each entry in pinctrl-names.
See pinctrl/pinctrl-bindings.txt for details of the property values.
diff --git a/Documentation/devicetree/bindings/pwm/pwm-meson.txt b/Documentation/devicetree/bindings/pwm/pwm-meson.txt
index 5376a4468cb6..1ee81321c35e 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-meson.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-meson.txt
@@ -2,7 +2,9 @@ Amlogic Meson PWM Controller
============================
Required properties:
-- compatible: Shall contain "amlogic,meson8b-pwm" or "amlogic,meson-gxbb-pwm".
+- compatible: Shall contain "amlogic,meson8b-pwm"
+ or "amlogic,meson-gxbb-pwm"
+ or "amlogic,meson-gxbb-ao-pwm"
- #pwm-cells: Should be 3. See pwm.txt in this directory for a description of
the cells format.
@@ -17,7 +19,6 @@ Example:
compatible = "amlogic,meson-gxbb-pwm";
reg = <0x0 0x08550 0x0 0x10>;
#pwm-cells = <3>;
- status = "disabled";
clocks = <&xtal>, <&xtal>;
clock-names = "clkin0", "clkin1";
}
diff --git a/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt b/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt
index b8be3d09ee26..2c5e52a5bede 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt
@@ -3,10 +3,17 @@ Rockchip PWM controller
Required properties:
- compatible: should be "rockchip,<name>-pwm"
"rockchip,rk2928-pwm": found on RK29XX,RK3066 and RK3188 SoCs
- "rockchip,rk3288-pwm": found on RK3288 SoC
+ "rockchip,rk3288-pwm": found on RK3288 SOC
+ "rockchip,rv1108-pwm", "rockchip,rk3288-pwm": found on RV1108 SoC
"rockchip,vop-pwm": found integrated in VOP on RK3288 SoC
- reg: physical base address and length of the controller's registers
- - clocks: phandle and clock specifier of the PWM reference clock
+ - clocks: See ../clock/clock-bindings.txt
+ - For older hardware (rk2928, rk3066, rk3188, rk3228, rk3288, rk3399):
+ - There is one clock that's used both to derive the functional clock
+ for the device and as the bus clock.
+ - For newer hardware (rk3328 and future socs): specified by name
+ - "pwm": This is used to derive the functional clock.
+ - "pclk": This is the APB bus clock.
- #pwm-cells: must be 2 (rk2928) or 3 (rk3288). See pwm.txt in this directory
for a description of the cell format.
diff --git a/Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt b/Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt
new file mode 100644
index 000000000000..f8338d11fd2b
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt
@@ -0,0 +1,24 @@
+STMicroelectronics STM32 Low-Power Timer PWM
+
+STM32 Low-Power Timer provides single channel PWM.
+
+Must be a sub-node of an STM32 Low-Power Timer device tree node.
+See ../mfd/stm32-lptimer.txt for details about the parent node.
+
+Required parameters:
+- compatible: Must be "st,stm32-pwm-lp".
+
+Optional properties:
+- pinctrl-names: Set to "default".
+- pinctrl-0: Phandle pointing to pin configuration node for PWM.
+
+Example:
+ timer@40002400 {
+ compatible = "st,stm32-lptimer";
+ ...
+ pwm {
+ compatible = "st,stm32-pwm-lp";
+ pinctrl-names = "default";
+ pinctrl-0 = <&lppwm1_pins>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/pwm/pwm-stm32.txt b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt
index 6dd040363e5e..3e6d55018d7a 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-stm32.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt
@@ -24,7 +24,7 @@ Example:
compatible = "st,stm32-timers";
reg = <0x40010000 0x400>;
clocks = <&rcc 0 160>;
- clock-names = "clk_int";
+ clock-names = "int";
pwm {
compatible = "st,stm32-pwm";
diff --git a/Documentation/devicetree/bindings/pwm/pwm-sun4i.txt b/Documentation/devicetree/bindings/pwm/pwm-sun4i.txt
index f1cbeefb3087..c5171660eaf9 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-sun4i.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-sun4i.txt
@@ -19,5 +19,4 @@ Example:
reg = <0x01c20e00 0xc>;
clocks = <&osc24M>;
#pwm-cells = <3>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt b/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
index 8007e839a716..06a363d9ccef 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
@@ -6,6 +6,7 @@ Required properties:
for am4372 - compatible = "ti,am4372-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
for da850 - compatible = "ti,da850-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
for dra746 - compatible = "ti,dra746-ecap", "ti,am3352-ecap";
+ for 66ak2g - compatible = "ti,k2g-ecap", "ti,am3352-ecap";
- #pwm-cells: should be 3. See pwm.txt in this directory for a description of
the cells format. The PWM channel index ranges from 0 to 4. The only third
cell flag supported by this binding is PWM_POLARITY_INVERTED.
diff --git a/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt b/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
index 1a5d7b71db89..4633697fbda1 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
@@ -26,7 +26,6 @@ epwmss0: epwmss@48300000 { /* PWMSS for am33xx */
ti,hwmods = "epwmss0";
#address-cells = <1>;
#size-cells = <1>;
- status = "disabled";
ranges = <0x48300100 0x48300100 0x80 /* ECAP */
0x48300180 0x48300180 0x80 /* EQEP */
0x48300200 0x48300200 0x80>; /* EHRPWM */
@@ -40,7 +39,6 @@ epwmss0: epwmss@48300000 { /* PWMSS for am4372 */
ti,hwmods = "epwmss0";
#address-cells = <1>;
#size-cells = <1>;
- status = "disabled";
ranges = <0x48300100 0x48300100 0x80 /* ECAP */
0x48300180 0x48300180 0x80 /* EQEP */
0x48300200 0x48300200 0x80>; /* EHRPWM */
diff --git a/Documentation/devicetree/bindings/pwm/pwm-zx.txt b/Documentation/devicetree/bindings/pwm/pwm-zx.txt
new file mode 100644
index 000000000000..a6bcc75c9164
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/pwm-zx.txt
@@ -0,0 +1,22 @@
+ZTE ZX PWM controller
+
+Required properties:
+ - compatible: Should be "zte,zx296718-pwm".
+ - reg: Physical base address and length of the controller's registers.
+ - clocks : The phandle and specifier referencing the controller's clocks.
+ - clock-names: "pclk" for PCLK, "wclk" for WCLK to the PWM controller. The
+ PCLK is for register access, while WCLK is the reference clock for
+ calculating period and duty cycles.
+ - #pwm-cells: Should be 3. See pwm.txt in this directory for a description of
+ the cells format.
+
+Example:
+
+ pwm: pwm@1439000 {
+ compatible = "zte,zx296718-pwm";
+ reg = <0x1439000 0x1000>;
+ clocks = <&lsp1crm LSP1_PWM_PCLK>,
+ <&lsp1crm LSP1_PWM_WCLK>;
+ clock-names = "pclk", "wclk";
+ #pwm-cells = <3>;
+ };
diff --git a/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt b/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt
index d6de64335022..7e94b802395d 100644
--- a/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt
+++ b/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt
@@ -8,6 +8,7 @@ Required Properties:
- "renesas,pwm-r8a7791": for R-Car M2-W
- "renesas,pwm-r8a7794": for R-Car E2
- "renesas,pwm-r8a7795": for R-Car H3
+ - "renesas,pwm-r8a7796": for R-Car M3-W
- reg: base address and length of the registers block for the PWM.
- #pwm-cells: should be 2. See pwm.txt in this directory for a description of
the cells format.
diff --git a/Documentation/devicetree/bindings/pwm/renesas,tpu-pwm.txt b/Documentation/devicetree/bindings/pwm/renesas,tpu-pwm.txt
index b067e84a94b5..1aadc804dae4 100644
--- a/Documentation/devicetree/bindings/pwm/renesas,tpu-pwm.txt
+++ b/Documentation/devicetree/bindings/pwm/renesas,tpu-pwm.txt
@@ -6,7 +6,6 @@ Required Properties:
- "renesas,tpu-r8a73a4": for R8A77A4 (R-Mobile APE6) compatible PWM controller.
- "renesas,tpu-r8a7740": for R8A7740 (R-Mobile A1) compatible PWM controller.
- "renesas,tpu-r8a7790": for R8A7790 (R-Car H2) compatible PWM controller.
- - "renesas,tpu-sh7372": for SH7372 (SH-Mobile AP4) compatible PWM controller.
- "renesas,tpu": for generic R-Car TPU PWM controller.
- reg: Base address and length of each memory resource used by the PWM
diff --git a/Documentation/devicetree/bindings/regulator/act8865-regulator.txt b/Documentation/devicetree/bindings/regulator/act8865-regulator.txt
index 6067d9830d07..3ae9f1088845 100644
--- a/Documentation/devicetree/bindings/regulator/act8865-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/act8865-regulator.txt
@@ -52,7 +52,6 @@ Example:
compatible = "active-semi,act8865";
reg = <0x5b>;
active-semi,vsel-high;
- status = "disabled";
regulators {
vcc_1v8_reg: DCDC_REG1 {
diff --git a/Documentation/devicetree/bindings/regulator/act8945a-regulator.txt b/Documentation/devicetree/bindings/regulator/act8945a-regulator.txt
index 5c80a7779552..ac955dea00d1 100644
--- a/Documentation/devicetree/bindings/regulator/act8945a-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/act8945a-regulator.txt
@@ -23,7 +23,6 @@ Example:
pmic@5b {
compatible = "active-semi,act8945a";
reg = <0x5b>;
- status = "okay";
active-semi,vsel-high;
diff --git a/Documentation/devicetree/bindings/regulator/mt6311-regulator.txt b/Documentation/devicetree/bindings/regulator/mt6311-regulator.txt
index 02649d8b3f5a..84d544d8c1b1 100644
--- a/Documentation/devicetree/bindings/regulator/mt6311-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/mt6311-regulator.txt
@@ -1,4 +1,4 @@
-Mediatek MT6311 Regulator Driver
+Mediatek MT6311 Regulator
Required properties:
- compatible: "mediatek,mt6311-regulator"
diff --git a/Documentation/devicetree/bindings/regulator/mt6323-regulator.txt b/Documentation/devicetree/bindings/regulator/mt6323-regulator.txt
index c35d878b0960..a48749db4df3 100644
--- a/Documentation/devicetree/bindings/regulator/mt6323-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/mt6323-regulator.txt
@@ -1,4 +1,4 @@
-Mediatek MT6323 Regulator Driver
+Mediatek MT6323 Regulator
All voltage regulators are defined as subnodes of the regulators node. A list
of regulators provided by this controller are defined as subnodes of the
diff --git a/Documentation/devicetree/bindings/regulator/mt6380-regulator.txt b/Documentation/devicetree/bindings/regulator/mt6380-regulator.txt
new file mode 100644
index 000000000000..0058441f16d2
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/mt6380-regulator.txt
@@ -0,0 +1,89 @@
+MediaTek MT6380 Regulator
+
+All voltage regulators provided by the MT6380 PMIC are described as the
+subnodes of the MT6380 regulators node. Each regulator is named according
+to its regulator type, buck-<name> and ldo-<name>. The definition for each
+of these nodes is defined using the standard binding for regulators at
+Documentation/devicetree/bindings/regulator/regulator.txt.
+
+The valid names for regulators are:
+BUCK:
+ buck-core1, buck-vcore, buck-vrf
+LDO:
+ ldo-vm ,ldo-va , ldo-vphy, ldo-vddr, ldo-vt
+
+Example:
+
+ regulators {
+ compatible = "mediatek,mt6380-regulator";
+
+ mt6380_vcpu_reg: buck-vcore1 {
+ regulator-name = "vcore1";
+ regulator-min-microvolt = < 600000>;
+ regulator-max-microvolt = <1393750>;
+ regulator-ramp-delay = <6250>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ mt6380_vcore_reg: buck-vcore {
+ regulator-name = "vcore";
+ regulator-min-microvolt = <600000>;
+ regulator-max-microvolt = <1393750>;
+ regulator-ramp-delay = <6250>;
+ };
+
+ mt6380_vrf_reg: buck-vrf {
+ regulator-name = "vrf";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1575000>;
+ regulator-ramp-delay = <0>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ mt6380_vm_reg: ldo-vm {
+ regulator-name = "vm";
+ regulator-min-microvolt = <1050000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-ramp-delay = <0>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ mt6380_va_reg: ldo-va {
+ regulator-name = "va";
+ regulator-min-microvolt = <2200000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-ramp-delay = <0>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ mt6380_vphy_reg: ldo-vphy {
+ regulator-name = "vphy";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-ramp-delay = <0>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ mt6380_vddr_reg: ldo-vddr {
+ regulator-name = "vddr";
+ regulator-min-microvolt = <1240000>;
+ regulator-max-microvolt = <1840000>;
+ regulator-ramp-delay = <0>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ mt6380_vt_reg: ldo-vt {
+ regulator-name = "vt";
+ regulator-min-microvolt = <2200000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-ramp-delay = <0>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/regulator/mt6397-regulator.txt b/Documentation/devicetree/bindings/regulator/mt6397-regulator.txt
index a42b1d6e9863..01141fb00875 100644
--- a/Documentation/devicetree/bindings/regulator/mt6397-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/mt6397-regulator.txt
@@ -1,4 +1,4 @@
-Mediatek MT6397 Regulator Driver
+Mediatek MT6397 Regulator
Required properties:
- compatible: "mediatek,mt6397-regulator"
diff --git a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt
index bf85aa9ad6a7..3d78d507e29f 100644
--- a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt
@@ -71,7 +71,7 @@ Continuous Voltage With Enable GPIO Example:
* Inverted PWM logic, and the duty cycle range is limited
* to 30%-70%.
*/
- pwm-dutycycle-range <700 300>; /* */
+ pwm-dutycycle-range = <700 300>; /* */
};
Voltage Table Example:
diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt
index d18edb075e1c..378f6dc8b8bd 100644
--- a/Documentation/devicetree/bindings/regulator/regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/regulator.txt
@@ -24,6 +24,14 @@ Optional properties:
- regulator-settling-time-us: Settling time, in microseconds, for voltage
change if regulator have the constant time for any level voltage change.
This is useful when regulator have exponential voltage change.
+- regulator-settling-time-up-us: Settling time, in microseconds, for voltage
+ increase if the regulator needs a constant time to settle after voltage
+ increases of any level. This is useful for regulators with exponential
+ voltage changes.
+- regulator-settling-time-down-us: Settling time, in microseconds, for voltage
+ decrease if the regulator needs a constant time to settle after voltage
+ decreases of any level. This is useful for regulators with exponential
+ voltage changes.
- regulator-soft-start: Enable soft start so that voltage ramps slowly
- regulator-state-mem sub-root node for Suspend-to-RAM mode
: suspend to memory, the device goes to sleep, but all data stored in memory,
diff --git a/Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.txt b/Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.txt
new file mode 100644
index 000000000000..3944ee3e731e
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.txt
@@ -0,0 +1,20 @@
+STM32 VREFBUF - Voltage reference buffer
+
+Some STM32 devices embed a voltage reference buffer which can be used as
+voltage reference for ADCs, DACs and also as voltage reference for external
+components through the dedicated VREF+ pin.
+
+Required properties:
+- compatible: Must be "st,stm32-vrefbuf".
+- reg: Offset and length of VREFBUF register set.
+- clocks: Must contain an entry for peripheral clock.
+
+Example:
+ vrefbuf: regulator@58003C00 {
+ compatible = "st,stm32-vrefbuf";
+ reg = <0x58003C00 0x8>;
+ clocks = <&rcc VREF_CK>;
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <2500000>;
+ vdda-supply = <&vdda>;
+ };
diff --git a/Documentation/devicetree/bindings/remoteproc/imx-rproc.txt b/Documentation/devicetree/bindings/remoteproc/imx-rproc.txt
new file mode 100644
index 000000000000..fbcefd965dc4
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/imx-rproc.txt
@@ -0,0 +1,33 @@
+NXP iMX6SX/iMX7D Co-Processor Bindings
+----------------------------------------
+
+This binding provides support for ARM Cortex M4 Co-processor found on some
+NXP iMX SoCs.
+
+Required properties:
+- compatible Should be one of:
+ "fsl,imx7d-cm4"
+ "fsl,imx6sx-cm4"
+- clocks Clock for co-processor (See: ../clock/clock-bindings.txt)
+- syscon Phandle to syscon block which provide access to
+ System Reset Controller
+
+Optional properties:
+- memory-region list of phandels to the reserved memory regions.
+ (See: ../reserved-memory/reserved-memory.txt)
+
+Example:
+ m4_reserved_sysmem1: cm4@80000000 {
+ reg = <0x80000000 0x80000>;
+ };
+
+ m4_reserved_sysmem2: cm4@81000000 {
+ reg = <0x81000000 0x80000>;
+ };
+
+ imx7d-cm4 {
+ compatible = "fsl,imx7d-cm4";
+ memory-region = <&m4_reserved_sysmem1>, <&m4_reserved_sysmem2>;
+ syscon = <&src>;
+ clocks = <&clks IMX7D_ARM_M4_ROOT_CLK>;
+ };
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt
index 75ad7b8df0b1..728e4193f7a6 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt
@@ -63,9 +63,10 @@ on the Qualcomm ADSP Hexagon core.
= SUBNODES
-The adsp node may have an subnode named "smd-edge" that describes the SMD edge,
-channels and devices related to the ADSP. See ../soc/qcom/qcom,smd.txt for
-details on how to describe the SMD edge.
+The adsp node may have an subnode named either "smd-edge" or "glink-edge" that
+describes the communication edge, channels and devices related to the ADSP.
+See ../soc/qcom/qcom,smd.txt and ../soc/qcom/qcom,glink.txt for details on how
+to describe these.
= EXAMPLE
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
index 92347fe6890e..7ff3f7903f26 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
@@ -90,6 +90,11 @@ the memory regions used by the Hexagon firmware. Each sub-node must contain:
Value type: <phandle>
Definition: reference to the reserved-memory for the region
+The Hexagon node may also have an subnode named either "smd-edge" or
+"glink-edge" that describes the communication edge, channels and devices
+related to the Hexagon. See ../soc/qcom/qcom,smd.txt and
+../soc/qcom/qcom,glink.txt for details on how to describe these.
+
= EXAMPLE
The following example describes the resources needed to boot control the
Hexagon, as it is found on MSM8974 boards.
diff --git a/Documentation/devicetree/bindings/remoteproc/ti,davinci-rproc.txt b/Documentation/devicetree/bindings/remoteproc/ti,davinci-rproc.txt
new file mode 100644
index 000000000000..e44a97e21164
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/ti,davinci-rproc.txt
@@ -0,0 +1,86 @@
+TI Davinci DSP devices
+=======================
+
+Binding status: Unstable - Subject to changes for DT representation of clocks
+ and resets
+
+The TI Davinci family of SoCs usually contains a TI DSP Core sub-system that
+is used to offload some of the processor-intensive tasks or algorithms, for
+achieving various system level goals.
+
+The processor cores in the sub-system usually contain additional sub-modules
+like L1 and/or L2 caches/SRAMs, an Interrupt Controller, an external memory
+controller, a dedicated local power/sleep controller etc. The DSP processor
+core used in Davinci SoCs is usually a C674x DSP CPU.
+
+DSP Device Node:
+================
+Each DSP Core sub-system is represented as a single DT node.
+
+Required properties:
+--------------------
+The following are the mandatory properties:
+
+- compatible: Should be one of the following,
+ "ti,da850-dsp" for DSPs on OMAP-L138 SoCs
+
+- reg: Should contain an entry for each value in 'reg-names'.
+ Each entry should have the memory region's start address
+ and the size of the region, the representation matching
+ the parent node's '#address-cells' and '#size-cells' values.
+
+- reg-names: Should contain strings with the following names, each
+ representing a specific internal memory region or a
+ specific register space,
+ "l2sram", "l1pram", "l1dram", "host1cfg", "chipsig_base"
+
+- interrupts: Should contain the interrupt number used to receive the
+ interrupts from the DSP. The value should follow the
+ interrupt-specifier format as dictated by the
+ 'interrupt-parent' node.
+
+- memory-region: phandle to the reserved memory node to be associated
+ with the remoteproc device. The reserved memory node
+ can be a CMA memory node, and should be defined as
+ per the bindings in
+ Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
+
+Optional properties:
+--------------------
+- interrupt-parent: phandle to the interrupt controller node. This property
+ is needed if the device node hierarchy doesn't have an
+ interrupt controller.
+
+
+Example:
+--------
+
+ /* DSP Reserved Memory node */
+ reserved-memory {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ dsp_memory_region: dsp-memory@c3000000 {
+ compatible = "shared-dma-pool";
+ reg = <0xc3000000 0x1000000>;
+ reusable;
+ };
+ };
+
+ /* DSP node */
+ {
+ dsp: dsp@11800000 {
+ compatible = "ti,da850-dsp";
+ reg = <0x11800000 0x40000>,
+ <0x11e00000 0x8000>,
+ <0x11f00000 0x8000>,
+ <0x01c14044 0x4>,
+ <0x01c14174 0x8>;
+ reg-names = "l2sram", "l1pram", "l1dram", "host1cfg",
+ "chipsig";
+ interrupt-parent = <&intc>;
+ interrupts = <28>;
+ memory-region = <&dsp_memory_region>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/remoteproc/ti,keystone-rproc.txt b/Documentation/devicetree/bindings/remoteproc/ti,keystone-rproc.txt
new file mode 100644
index 000000000000..1eb72874130b
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/ti,keystone-rproc.txt
@@ -0,0 +1,188 @@
+TI Keystone DSP devices
+=======================
+
+The TI Keystone 2 family of SoCs usually have one or more (upto 8) TI DSP Core
+sub-systems that are used to offload some of the processor-intensive tasks or
+algorithms, for achieving various system level goals.
+
+These processor sub-systems usually contain additional sub-modules like L1
+and/or L2 caches/SRAMs, an Interrupt Controller, an external memory controller,
+a dedicated local power/sleep controller etc. The DSP processor core in
+Keystone 2 SoCs is usually a TMS320C66x CorePac processor.
+
+DSP Device Node:
+================
+Each DSP Core sub-system is represented as a single DT node, and should also
+have an alias with the stem 'rproc' defined. Each node has a number of required
+or optional properties that enable the OS running on the host processor (ARM
+CorePac) to perform the device management of the remote processor and to
+communicate with the remote processor.
+
+Required properties:
+--------------------
+The following are the mandatory properties:
+
+- compatible: Should be one of the following,
+ "ti,k2hk-dsp" for DSPs on Keystone 2 66AK2H/K SoCs
+ "ti,k2l-dsp" for DSPs on Keystone 2 66AK2L SoCs
+ "ti,k2e-dsp" for DSPs on Keystone 2 66AK2E SoCs
+ "ti,k2g-dsp" for DSPs on Keystone 2 66AK2G SoCs
+
+- reg: Should contain an entry for each value in 'reg-names'.
+ Each entry should have the memory region's start address
+ and the size of the region, the representation matching
+ the parent node's '#address-cells' and '#size-cells' values.
+
+- reg-names: Should contain strings with the following names, each
+ representing a specific internal memory region, and
+ should be defined in this order,
+ "l2sram", "l1pram", "l1dram"
+
+- ti,syscon-dev: Should be a pair of the phandle to the Keystone Device
+ State Control node, and the register offset of the DSP
+ boot address register within that node's address space.
+
+- resets: Should contain the phandle to the reset controller node
+ managing the resets for this device, and a reset
+ specifier. Please refer to either of the following reset
+ bindings for the reset argument specifier as per SoC,
+ Documentation/devicetree/bindings/reset/ti-syscon-reset.txt
+ for 66AK2HK/66AK2L/66AK2E SoCs or,
+ Documentation/devicetree/bindings/reset/ti,sci-reset.txt
+ for 66AK2G SoCs
+
+- interrupt-parent: Should contain a phandle to the Keystone 2 IRQ controller
+ IP node that is used by the ARM CorePac processor to
+ receive interrupts from the DSP remote processors. See
+ Documentation/devicetree/bindings/interrupt-controller/ti,keystone-irq.txt
+ for details.
+
+- interrupts: Should contain an entry for each value in 'interrupt-names'.
+ Each entry should have the interrupt source number used by
+ the remote processor to the host processor. The values should
+ follow the interrupt-specifier format as dictated by the
+ 'interrupt-parent' node. The purpose of each is as per the
+ description in the 'interrupt-names' property.
+
+- interrupt-names: Should contain strings with the following names, each
+ representing a specific interrupt,
+ "vring" - interrupt for virtio based IPC
+ "exception" - interrupt for exception notification
+
+- kick-gpios: Should specify the gpio device needed for the virtio IPC
+ stack. This will be used to interrupt the remote processor.
+ The gpio device to be used is as per the bindings in,
+ Documentation/devicetree/bindings/gpio/gpio-dsp-keystone.txt
+
+SoC-specific Required properties:
+---------------------------------
+The following are mandatory properties for Keystone 2 66AK2HK, 66AK2L and 66AK2E
+SoCs only:
+
+- clocks: Should contain the device's input clock, and should be
+ defined as per the bindings in,
+ Documentation/devicetree/bindings/clock/keystone-gate.txt
+
+The following are mandatory properties for Keystone 2 66AK2G SoCs only:
+
+- power-domains: Should contain a phandle to a PM domain provider node
+ and an args specifier containing the DSP device id
+ value. This property is as per the binding,
+ Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
+
+Optional properties:
+--------------------
+
+- memory-region: phandle to the reserved memory node to be associated
+ with the remoteproc device. The reserved memory node
+ can be a CMA memory node, and should be defined as
+ per the bindings in
+ Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
+
+
+Examples:
+---------
+
+1.
+ /* 66AK2H/K DSP aliases */
+ aliases {
+ rproc0 = &dsp0;
+ rproc1 = &dsp1;
+ rproc2 = &dsp2;
+ rproc3 = &dsp3;
+ rproc4 = &dsp4;
+ rproc5 = &dsp5;
+ rproc6 = &dsp6;
+ rproc7 = &dsp7;
+ };
+
+ /* 66AK2H/K DSP memory node */
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ dsp_common_memory: dsp-common-memory@81f800000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00000008 0x1f800000 0x00000000 0x800000>;
+ reusable;
+ };
+ };
+
+ /* 66AK2H/K DSP node */
+ soc {
+ dsp0: dsp@10800000 {
+ compatible = "ti,k2hk-dsp";
+ reg = <0x10800000 0x00100000>,
+ <0x10e00000 0x00008000>,
+ <0x10f00000 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ clocks = <&clkgem0>;
+ ti,syscon-dev = <&devctrl 0x40>;
+ resets = <&pscrst 0>;
+ interrupt-parent = <&kirq0>;
+ interrupts = <0 8>;
+ interrupt-names = "vring", "exception";
+ kick-gpios = <&dspgpio0 27 0>;
+ memory-region = <&dsp_common_memory>;
+ };
+
+ };
+
+2.
+ /* 66AK2G DSP alias */
+ aliases {
+ rproc0 = &dsp0;
+ };
+
+ /* 66AK2G DSP memory node */
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ dsp_common_memory: dsp-common-memory@81f800000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00000008 0x1f800000 0x00000000 0x800000>;
+ reusable;
+ };
+ };
+
+ /* 66AK2G DSP node */
+ soc {
+ dsp0: dsp@10800000 {
+ compatible = "ti,k2g-dsp";
+ reg = <0x10800000 0x00100000>,
+ <0x10e00000 0x00008000>,
+ <0x10f00000 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ power-domains = <&k2g_pds 0x0046>;
+ ti,syscon-dev = <&devctrl 0x40>;
+ resets = <&k2g_reset 0x0046 0x1>;
+ interrupt-parent = <&kirq0>;
+ interrupts = <0 8>;
+ interrupt-names = "vring", "exception";
+ kick-gpios = <&dspgpio0 27 0>;
+ memory-region = <&dsp_common_memory>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt b/Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
index 3da0ebdba8d9..16291f2a4688 100644
--- a/Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
+++ b/Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
@@ -68,6 +68,9 @@ Linux implementation note:
- If a "linux,cma-default" property is present, then Linux will use the
region for the default pool of the contiguous memory allocator.
+- If a "linux,dma-default" property is present, then Linux will use the
+ region for the default pool of the consistent DMA allocator.
+
Device node references to reserved memory
-----------------------------------------
Regions in the /reserved-memory node may be referenced by other device
diff --git a/Documentation/devicetree/bindings/reset/lantiq,reset.txt b/Documentation/devicetree/bindings/reset/lantiq,reset.txt
new file mode 100644
index 000000000000..c6aef36b7d15
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/lantiq,reset.txt
@@ -0,0 +1,30 @@
+Lantiq XWAY SoC RCU reset controller binding
+============================================
+
+This binding describes a reset-controller found on the RCU module on Lantiq
+XWAY SoCs.
+
+This node has to be a sub node of the Lantiq RCU block.
+
+-------------------------------------------------------------------------------
+Required properties:
+- compatible : Should be one of
+ "lantiq,danube-reset"
+ "lantiq,xrx200-reset"
+- reg : Defines the following sets of registers in the parent
+ syscon device
+ - Offset of the reset set register
+ - Offset of the reset status register
+- #reset-cells : Specifies the number of cells needed to encode the
+ reset line, should be 2.
+ The first cell takes the reset set bit and the
+ second cell takes the status bit.
+
+-------------------------------------------------------------------------------
+Example for the reset-controllers on the xRX200 SoCs:
+ reset0: reset-controller@10 {
+ compatible = "lantiq,xrx200-reset";
+ reg <0x10 0x04>, <0x14 0x04>;
+
+ #reset-cells = <2>;
+ };
diff --git a/Documentation/devicetree/bindings/reset/nxp,lpc1850-rgu.txt b/Documentation/devicetree/bindings/reset/nxp,lpc1850-rgu.txt
index b4e96a278445..05d5be48dae4 100644
--- a/Documentation/devicetree/bindings/reset/nxp,lpc1850-rgu.txt
+++ b/Documentation/devicetree/bindings/reset/nxp,lpc1850-rgu.txt
@@ -80,5 +80,4 @@ mac: ethernet@40010000 {
clock-names = "stmmaceth";
resets = <&rgu 22>;
reset-names = "stmmaceth";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/reset/renesas,rst.txt b/Documentation/devicetree/bindings/reset/renesas,rst.txt
index fe5e0f37b3c9..e5a03ffe04fb 100644
--- a/Documentation/devicetree/bindings/reset/renesas,rst.txt
+++ b/Documentation/devicetree/bindings/reset/renesas,rst.txt
@@ -26,6 +26,7 @@ Required properties:
- "renesas,r8a7794-rst" (R-Car E2)
- "renesas,r8a7795-rst" (R-Car H3)
- "renesas,r8a7796-rst" (R-Car M3-W)
+ - "renesas,r8a77995-rst" (R-Car D3)
- reg: Address start and address range for the device.
diff --git a/Documentation/devicetree/bindings/reset/snps,hsdk-reset.txt b/Documentation/devicetree/bindings/reset/snps,hsdk-reset.txt
new file mode 100644
index 000000000000..830069b1c37c
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/snps,hsdk-reset.txt
@@ -0,0 +1,28 @@
+Binding for the Synopsys HSDK reset controller
+
+This binding uses the common reset binding[1].
+
+[1] Documentation/devicetree/bindings/reset/reset.txt
+
+Required properties:
+- compatible: should be "snps,hsdk-reset".
+- reg: should always contain 2 pairs address - length: first for reset
+ configuration register and second for corresponding SW reset and status bits
+ register.
+- #reset-cells: from common reset binding; Should always be set to 1.
+
+Example:
+ reset: reset@880 {
+ compatible = "snps,hsdk-reset";
+ #reset-cells = <1>;
+ reg = <0x8A0 0x4>, <0xFF0 0x4>;
+ };
+
+Specifying reset lines connected to IP modules:
+ ethernet@.... {
+ ....
+ resets = <&reset HSDK_V1_ETH_RESET>;
+ ....
+ };
+
+The index could be found in <dt-bindings/reset/snps,hsdk-reset.h>
diff --git a/Documentation/devicetree/bindings/reset/ti,sci-reset.txt b/Documentation/devicetree/bindings/reset/ti,sci-reset.txt
new file mode 100644
index 000000000000..8b1cf022f18a
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/ti,sci-reset.txt
@@ -0,0 +1,62 @@
+Texas Instruments System Control Interface (TI-SCI) Reset Controller
+=====================================================================
+
+Some TI SoCs contain a system controller (like the Power Management Micro
+Controller (PMMC) on Keystone 66AK2G SoC) that are responsible for controlling
+the state of the various hardware modules present on the SoC. Communication
+between the host processor running an OS and the system controller happens
+through a protocol called TI System Control Interface (TI-SCI protocol).
+For TI SCI details, please refer to the document,
+Documentation/devicetree/bindings/arm/keystone/ti,sci.txt
+
+TI-SCI Reset Controller Node
+============================
+This reset controller node uses the TI SCI protocol to perform the reset
+management of various hardware modules present on the SoC. Must be a child
+node of the associated TI-SCI system controller node.
+
+Required properties:
+--------------------
+ - compatible : Should be "ti,sci-reset"
+ - #reset-cells : Should be 2. Please see the reset consumer node below for
+ usage details.
+
+TI-SCI Reset Consumer Nodes
+===========================
+Each of the reset consumer nodes should have the following properties,
+in addition to their own properties.
+
+Required properties:
+--------------------
+ - resets : A phandle and reset specifier pair, one pair for each reset
+ signal that affects the device, or that the device manages.
+ The phandle should point to the TI-SCI reset controller node,
+ and the reset specifier should have 2 cell-values. The first
+ cell should contain the device ID. The second cell should
+ contain the reset mask value used by system controller.
+ Please refer to the protocol documentation for these values
+ to be used for different devices,
+ http://processors.wiki.ti.com/index.php/TISCI#66AK2G02_Data
+
+Please also refer to Documentation/devicetree/bindings/reset/reset.txt for
+common reset controller usage by consumers.
+
+Example:
+--------
+The following example demonstrates both a TI-SCI reset controller node and a
+consumer (a DSP device) on the 66AK2G SoC.
+
+pmmc: pmmc {
+ compatible = "ti,k2g-sci";
+
+ k2g_reset: reset-controller {
+ compatible = "ti,sci-reset";
+ #reset-cells = <2>;
+ };
+};
+
+dsp0: dsp@10800000 {
+ ...
+ resets = <&k2g_reset 0x0046 0x1>;
+ ...
+};
diff --git a/Documentation/devicetree/bindings/reset/uniphier-reset.txt b/Documentation/devicetree/bindings/reset/uniphier-reset.txt
index 83ab0f599c40..68a6f487c409 100644
--- a/Documentation/devicetree/bindings/reset/uniphier-reset.txt
+++ b/Documentation/devicetree/bindings/reset/uniphier-reset.txt
@@ -6,7 +6,6 @@ System reset
Required properties:
- compatible: should be one of the following:
- "socionext,uniphier-sld3-reset" - for sLD3 SoC
"socionext,uniphier-ld4-reset" - for LD4 SoC
"socionext,uniphier-pro4-reset" - for Pro4 SoC
"socionext,uniphier-sld8-reset" - for sLD8 SoC
@@ -37,7 +36,6 @@ Media I/O (MIO) reset, SD reset
Required properties:
- compatible: should be one of the following:
- "socionext,uniphier-sld3-mio-reset" - for sLD3 SoC
"socionext,uniphier-ld4-mio-reset" - for LD4 SoC
"socionext,uniphier-pro4-mio-reset" - for Pro4 SoC
"socionext,uniphier-sld8-mio-reset" - for sLD8 SoC
@@ -92,3 +90,28 @@ Example:
other nodes ...
};
+
+
+Analog signal amplifier reset
+-----------------------------
+
+Required properties:
+- compatible: should be one of the following:
+ "socionext,uniphier-ld11-adamv-reset" - for LD11 SoC
+ "socionext,uniphier-ld20-adamv-reset" - for LD20 SoC
+- #reset-cells: should be 1.
+
+Example:
+
+ adamv@57920000 {
+ compatible = "socionext,uniphier-ld11-adamv",
+ "simple-mfd", "syscon";
+ reg = <0x57920000 0x1000>;
+
+ adamv_rst: reset {
+ compatible = "socionext,uniphier-ld11-adamv-reset";
+ #reset-cells = <1>;
+ };
+
+ other nodes ...
+ };
diff --git a/Documentation/devicetree/bindings/rng/imx-rngc.txt b/Documentation/devicetree/bindings/rng/imx-rngc.txt
new file mode 100644
index 000000000000..93c7174a7bed
--- /dev/null
+++ b/Documentation/devicetree/bindings/rng/imx-rngc.txt
@@ -0,0 +1,21 @@
+Freescale RNGC (Random Number Generator Version C)
+
+The driver also supports version B, which is mostly compatible
+to version C.
+
+Required properties:
+- compatible : should be one of
+ "fsl,imx25-rngb"
+ "fsl,imx35-rngc"
+- reg : offset and length of the register set of this block
+- interrupts : the interrupt number for the RNGC block
+- clocks : the RNGC clk source
+
+Example:
+
+rng@53fb0000 {
+ compatible = "fsl,imx25-rngb";
+ reg = <0x53fb0000 0x4000>;
+ interrupts = <22>;
+ clocks = <&trng_clk>;
+};
diff --git a/Documentation/devicetree/bindings/rng/mtk-rng.txt b/Documentation/devicetree/bindings/rng/mtk-rng.txt
index a6d62a2abd39..366b99bff8cd 100644
--- a/Documentation/devicetree/bindings/rng/mtk-rng.txt
+++ b/Documentation/devicetree/bindings/rng/mtk-rng.txt
@@ -2,7 +2,9 @@ Device-Tree bindings for Mediatek random number generator
found in Mediatek SoC family
Required properties:
-- compatible : Should be "mediatek,mt7623-rng"
+- compatible : Should be
+ "mediatek,mt7622-rng", "mediatek,mt7623-rng" : for MT7622
+ "mediatek,mt7623-rng" : for MT7623
- clocks : list of clock specifiers, corresponding to
entries in clock-names property;
- clock-names : Should contain "rng" entries;
diff --git a/Documentation/devicetree/bindings/rng/timeriomem_rng.txt b/Documentation/devicetree/bindings/rng/timeriomem_rng.txt
index 6616d15866a3..214940093b55 100644
--- a/Documentation/devicetree/bindings/rng/timeriomem_rng.txt
+++ b/Documentation/devicetree/bindings/rng/timeriomem_rng.txt
@@ -5,6 +5,13 @@ Required properties:
- reg : base address to sample from
- period : wait time in microseconds to use between samples
+Optional properties:
+- quality : estimated number of bits of true entropy per 1024 bits read from the
+ rng. Defaults to zero which causes the kernel's default quality to
+ be used instead. Note that the default quality is usually zero
+ which disables using this rng to automatically fill the kernel's
+ entropy pool.
+
N.B. currently 'reg' must be four bytes wide and aligned
Example:
diff --git a/Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.txt b/Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.txt
new file mode 100644
index 000000000000..1d990bcc0baf
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.txt
@@ -0,0 +1,22 @@
+Broadcom STB wake-up Timer
+
+The Broadcom STB wake-up timer provides a 27Mhz resolution timer, with the
+ability to wake up the system from low-power suspend/standby modes.
+
+Required properties:
+- compatible : should contain "brcm,brcmstb-waketimer"
+- reg : the register start and length for the WKTMR block
+- interrupts : The TIMER interrupt
+- interrupt-parent: The phandle to the Always-On (AON) Power Management (PM) L2
+ interrupt controller node
+- clocks : The phandle to the UPG fixed clock (27Mhz domain)
+
+Example:
+
+waketimer@f0411580 {
+ compatible = "brcm,brcmstb-waketimer";
+ reg = <0xf0411580 0x14>;
+ interrupts = <0x3>;
+ interrupt-parent = <&aon_pm_l2_intc>;
+ clocks = <&upg_fixed>;
+};
diff --git a/Documentation/devicetree/bindings/rtc/cortina,gemini.txt b/Documentation/devicetree/bindings/rtc/cortina,gemini.txt
deleted file mode 100644
index 4ce4e794ddbb..000000000000
--- a/Documentation/devicetree/bindings/rtc/cortina,gemini.txt
+++ /dev/null
@@ -1,14 +0,0 @@
-* Cortina Systems Gemini RTC
-
-Gemini SoC real-time clock.
-
-Required properties:
-- compatible : Should be "cortina,gemini-rtc"
-
-Examples:
-
-rtc@45000000 {
- compatible = "cortina,gemini-rtc";
- reg = <0x45000000 0x100>;
- interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;
-};
diff --git a/Documentation/devicetree/bindings/rtc/faraday,ftrtc010.txt b/Documentation/devicetree/bindings/rtc/faraday,ftrtc010.txt
new file mode 100644
index 000000000000..e3938f5e0b6c
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/faraday,ftrtc010.txt
@@ -0,0 +1,28 @@
+* Faraday Technology FTRTC010 Real Time Clock
+
+This RTC appears in for example the Storlink Gemini family of
+SoCs.
+
+Required properties:
+- compatible : Should be one of:
+ "faraday,ftrtc010"
+ "cortina,gemini-rtc", "faraday,ftrtc010"
+
+Optional properties:
+- clocks: when present should contain clock references to the
+ PCLK and EXTCLK clocks. Faraday calls the later CLK1HZ and
+ says the clock should be 1 Hz, but implementers actually seem
+ to choose different clocks here, like Cortina who chose
+ 32768 Hz (a typical low-power clock).
+- clock-names: should name the clocks "PCLK" and "EXTCLK"
+ respectively.
+
+Examples:
+
+rtc@45000000 {
+ compatible = "cortina,gemini-rtc";
+ reg = <0x45000000 0x100>;
+ interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&foo 0>, <&foo 1>;
+ clock-names = "PCLK", "EXTCLK";
+};
diff --git a/Documentation/devicetree/bindings/rtc/google,goldfish-rtc.txt b/Documentation/devicetree/bindings/rtc/google,goldfish-rtc.txt
new file mode 100644
index 000000000000..634312dd95ca
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/google,goldfish-rtc.txt
@@ -0,0 +1,17 @@
+Android Goldfish RTC
+
+Android Goldfish RTC device used by Android emulator.
+
+Required properties:
+
+- compatible : should contain "google,goldfish-rtc"
+- reg : <registers mapping>
+- interrupts : <interrupt mapping>
+
+Example:
+
+ goldfish_timer@9020000 {
+ compatible = "google,goldfish-rtc";
+ reg = <0x9020000 0x1000>;
+ interrupts = <0x3>;
+ };
diff --git a/Documentation/devicetree/bindings/rtc/isil,isl12057.txt b/Documentation/devicetree/bindings/rtc/isil,isl12057.txt
index cf83e0940302..fbbdd92e5af9 100644
--- a/Documentation/devicetree/bindings/rtc/isil,isl12057.txt
+++ b/Documentation/devicetree/bindings/rtc/isil,isl12057.txt
@@ -24,7 +24,6 @@ Optional properties:
- "wakeup-source": mark the chip as a wakeup source, independently of
the availability of an IRQ line connected to the SoC.
- (Legacy property supported: "isil,irq2-can-wakeup-machine")
- "interrupt-parent", "interrupts": for passing the interrupt line
of the SoC connected to IRQ#2 of the RTC chip.
diff --git a/Documentation/devicetree/bindings/rtc/realtek,rtd119x.txt b/Documentation/devicetree/bindings/rtc/realtek,rtd119x.txt
new file mode 100644
index 000000000000..bbf1ccb5df31
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/realtek,rtd119x.txt
@@ -0,0 +1,16 @@
+Realtek RTD129x Real-Time Clock
+===============================
+
+Required properties:
+- compatible : Should be "realtek,rtd1295-rtc"
+- reg : Specifies the physical base address and size
+- clocks : Specifies the clock gate
+
+
+Example:
+
+ rtc@9801b600 {
+ compatible = "realtek,rtd1295-clk";
+ reg = <0x9801b600 0x100>;
+ clocks = <&clkc RTD1295_CLK_EN_MISC_RTC>;
+ };
diff --git a/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt b/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt
index e2837b951237..a66692a08ace 100644
--- a/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt
+++ b/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt
@@ -1,17 +1,25 @@
STM32 Real Time Clock
Required properties:
-- compatible: "st,stm32-rtc".
+- compatible: can be either "st,stm32-rtc" or "st,stm32h7-rtc", depending on
+ the device is compatible with stm32(f4/f7) or stm32h7.
- reg: address range of rtc register set.
-- clocks: reference to the clock entry ck_rtc.
+- clocks: can use up to two clocks, depending on part used:
+ - "rtc_ck": RTC clock source.
+ It is required on stm32(f4/f7) and stm32h7.
+ - "pclk": RTC APB interface clock.
+ It is not present on stm32(f4/f7).
+ It is required on stm32h7.
+- clock-names: must be "rtc_ck" and "pclk".
+ It is required only on stm32h7.
- interrupt-parent: phandle for the interrupt controller.
- interrupts: rtc alarm interrupt.
- st,syscfg: phandle for pwrcfg, mandatory to disable/enable backup domain
(RTC registers) write protection.
-Optional properties (to override default ck_rtc parent clock):
-- assigned-clocks: reference to the ck_rtc clock entry.
-- assigned-clock-parents: phandle of the new parent clock of ck_rtc.
+Optional properties (to override default rtc_ck parent clock):
+- assigned-clocks: reference to the rtc_ck clock entry.
+- assigned-clock-parents: phandle of the new parent clock of rtc_ck.
Example:
@@ -25,3 +33,16 @@ Example:
interrupts = <17 1>;
st,syscfg = <&pwrcfg>;
};
+
+ rtc: rtc@58004000 {
+ compatible = "st,stm32h7-rtc";
+ reg = <0x58004000 0x400>;
+ clocks = <&rcc RTCAPB_CK>, <&rcc RTC_CK>;
+ clock-names = "pclk", "rtc_ck";
+ assigned-clocks = <&rcc RTC_CK>;
+ assigned-clock-parents = <&rcc LSE_CK>;
+ interrupt-parent = <&exti>;
+ interrupts = <17 1>;
+ interrupt-names = "alarm";
+ st,syscfg = <&pwrcfg>;
+ };
diff --git a/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt b/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt
index 945934918b71..d5e26d313f62 100644
--- a/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt
+++ b/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt
@@ -10,7 +10,7 @@ Required properties:
Required properties for new device trees
- clocks : phandle to the 32kHz external oscillator
-- clock-output-names : name of the LOSC clock created
+- clock-output-names : names of the LOSC and its external output clocks created
- #clock-cells : must be equals to 1. The RTC provides two clocks: the
LOSC and its external output, with index 0 and 1
respectively.
@@ -21,7 +21,7 @@ rtc: rtc@01f00000 {
compatible = "allwinner,sun6i-a31-rtc";
reg = <0x01f00000 0x54>;
interrupts = <0 40 4>, <0 41 4>;
- clock-output-names = "osc32k";
+ clock-output-names = "osc32k", "osc32k-out";
clocks = <&ext_osc32k>;
#clock-cells = <1>;
};
diff --git a/Documentation/devicetree/bindings/scsi/hisilicon-sas.txt b/Documentation/devicetree/bindings/scsi/hisilicon-sas.txt
index 2a42a323fa1a..b6a869f97715 100644
--- a/Documentation/devicetree/bindings/scsi/hisilicon-sas.txt
+++ b/Documentation/devicetree/bindings/scsi/hisilicon-sas.txt
@@ -85,5 +85,4 @@ Example:
<366 1>,<367 1>/* cq30-31 */
<376 4>,/* fatal ecc */
<381 4>;/* fatal axi */
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/security/tpm/st33zp24-i2c.txt b/Documentation/devicetree/bindings/security/tpm/st33zp24-i2c.txt
index 3ad115efed1e..6a4e0d30d8c4 100644
--- a/Documentation/devicetree/bindings/security/tpm/st33zp24-i2c.txt
+++ b/Documentation/devicetree/bindings/security/tpm/st33zp24-i2c.txt
@@ -19,7 +19,6 @@ Example (for ARM-based BeagleBoard xM with ST33ZP24 on I2C2):
&i2c2 {
- status = "okay";
st33zp24: st33zp24@13 {
diff --git a/Documentation/devicetree/bindings/security/tpm/st33zp24-spi.txt b/Documentation/devicetree/bindings/security/tpm/st33zp24-spi.txt
index 158b0165e01c..604dce901b60 100644
--- a/Documentation/devicetree/bindings/security/tpm/st33zp24-spi.txt
+++ b/Documentation/devicetree/bindings/security/tpm/st33zp24-spi.txt
@@ -18,7 +18,6 @@ Example (for ARM-based BeagleBoard xM with ST33ZP24 on SPI4):
&mcspi4 {
- status = "okay";
st33zp24@0 {
diff --git a/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt b/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt
index 8cb638b7e89c..a65d7b71e81a 100644
--- a/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt
+++ b/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt
@@ -8,6 +8,12 @@ Required properties:
the firmware event log
- linux,sml-size : size of the memory allocated for the firmware event log
+Optional properties:
+
+- powered-while-suspended: present when the TPM is left powered on between
+ suspend and resume (makes the suspend/resume
+ callbacks do nothing).
+
Example (for OpenPower Systems with Nuvoton TPM 2.0 on I2C)
----------------------------------------------------------
@@ -17,5 +23,4 @@ tpm@57 {
compatible = "nuvoton,npct650", "nuvoton,npct601";
linux,sml-base = <0x7f 0xfd450000>;
linux,sml-size = <0x10000>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/security/tpm/tpm_tis_spi.txt b/Documentation/devicetree/bindings/security/tpm/tpm_tis_spi.txt
index 85741cd468cc..b800667da92b 100644
--- a/Documentation/devicetree/bindings/security/tpm/tpm_tis_spi.txt
+++ b/Documentation/devicetree/bindings/security/tpm/tpm_tis_spi.txt
@@ -13,7 +13,6 @@ Example (for ARM-based BeagleBoard xM with TPM_TIS on SPI4):
&mcspi4 {
- status = "okay";
tpm_tis@0 {
diff --git a/Documentation/devicetree/bindings/serial/8250.txt b/Documentation/devicetree/bindings/serial/8250.txt
index 10276a46ecef..dad3b2ec66d4 100644
--- a/Documentation/devicetree/bindings/serial/8250.txt
+++ b/Documentation/devicetree/bindings/serial/8250.txt
@@ -14,12 +14,16 @@ Required properties:
tegra132, or tegra210.
- "nxp,lpc3220-uart"
- "ralink,rt2880-uart"
+ - For MediaTek BTIF, must contain '"mediatek,<chip>-btif",
+ "mediatek,mtk-btif"' where <chip> is mt7622, mt7623.
- "altr,16550-FIFO32"
- "altr,16550-FIFO64"
- "altr,16550-FIFO128"
- "fsl,16550-FIFO64"
- "fsl,ns16550"
- "ti,da830-uart"
+ - "aspeed,ast2400-vuart"
+ - "aspeed,ast2500-vuart"
- "serial" if the port type is unknown.
- reg : offset and length of the register set for the device.
- interrupts : should contain uart interrupt.
@@ -45,6 +49,7 @@ Optional properties:
property.
- tx-threshold: Specify the TX FIFO low water indication for parts with
programmable TX FIFO thresholds.
+- resets : phandle + reset specifier pairs
Note:
* fsl,ns16550:
diff --git a/Documentation/devicetree/bindings/serial/actions,owl-uart.txt b/Documentation/devicetree/bindings/serial/actions,owl-uart.txt
new file mode 100644
index 000000000000..aa873eada02d
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/actions,owl-uart.txt
@@ -0,0 +1,16 @@
+Actions Semi Owl UART
+
+Required properties:
+- compatible : "actions,s500-uart", "actions,owl-uart" for S500
+ "actions,s900-uart", "actions,owl-uart" for S900
+- reg : Offset and length of the register set for the device.
+- interrupts : Should contain UART interrupt.
+
+
+Example:
+
+ uart3: serial@b0126000 {
+ compatible = "actions,s500-uart", "actions,owl-uart";
+ reg = <0xb0126000 0x1000>;
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.txt b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.txt
new file mode 100644
index 000000000000..8ff65fa632fd
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.txt
@@ -0,0 +1,38 @@
+Amlogic Meson SoC UART Serial Interface
+=======================================
+
+The Amlogic Meson SoC UART Serial Interface is present on a large range
+of SoCs, and can be present either in the "Always-On" power domain or the
+"Everything-Else" power domain.
+
+The particularity of the "Always-On" Serial Interface is that the hardware
+is active since power-on and does not need any clock gating and is usable
+as very early serial console.
+
+Required properties:
+- compatible : compatible: value should be different for each SoC family as :
+ - Meson6 : "amlogic,meson6-uart"
+ - Meson8 : "amlogic,meson8-uart"
+ - Meson8b : "amlogic,meson8b-uart"
+ - GX (GXBB, GXL, GXM) : "amlogic,meson-gx-uart"
+ eventually followed by : "amlogic,meson-ao-uart" if this UART interface
+ is in the "Always-On" power domain.
+- reg : offset and length of the register set for the device.
+- interrupts : identifier to the device interrupt
+- clocks : a list of phandle + clock-specifier pairs, one for each
+ entry in clock names.
+- clocks-names :
+ * "xtal" for external xtal clock identifier
+ * "pclk" for the bus core clock, either the clk81 clock or the gate clock
+ * "baud" for the source of the baudrate generator, can be either the xtal
+ or the pclk.
+
+e.g.
+uart_A: serial@84c0 {
+ compatible = "amlogic,meson-gx-uart";
+ reg = <0x0 0x84c0 0x0 0x14>;
+ interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
+ /* Use xtal as baud rate clock source */
+ clocks = <&xtal>, <&clkc CLKID_UART0>, <&xtal>;
+ clock-names = "xtal", "pclk", "baud";
+};
diff --git a/Documentation/devicetree/bindings/serial/arc-uart.txt b/Documentation/devicetree/bindings/serial/arc-uart.txt
index 5cae2eb686f8..256cc150ca7e 100644
--- a/Documentation/devicetree/bindings/serial/arc-uart.txt
+++ b/Documentation/devicetree/bindings/serial/arc-uart.txt
@@ -15,7 +15,6 @@ arcuart0: serial@c0fc1000 {
interrupts = <5>;
clock-frequency = <80000000>;
current-speed = <115200>;
- status = "okay";
};
Note: Each port should have an alias correctly numbered in "aliases" node.
diff --git a/Documentation/devicetree/bindings/serial/axis,etraxfs-uart.txt b/Documentation/devicetree/bindings/serial/axis,etraxfs-uart.txt
index 51b3c9e80ad9..048c3818c826 100644
--- a/Documentation/devicetree/bindings/serial/axis,etraxfs-uart.txt
+++ b/Documentation/devicetree/bindings/serial/axis,etraxfs-uart.txt
@@ -15,7 +15,6 @@ serial@b00260000 {
compatible = "axis,etraxfs-uart";
reg = <0xb0026000 0x1000>;
interrupts = <68>;
- status = "disabled";
dtr-gpios = <&sysgpio 0 GPIO_ACTIVE_LOW>;
dsr-gpios = <&sysgpio 1 GPIO_ACTIVE_LOW>;
rng-gpios = <&sysgpio 2 GPIO_ACTIVE_LOW>;
diff --git a/Documentation/devicetree/bindings/serial/fsl-lpuart.txt b/Documentation/devicetree/bindings/serial/fsl-lpuart.txt
index c95005efbcb8..a1252a047f78 100644
--- a/Documentation/devicetree/bindings/serial/fsl-lpuart.txt
+++ b/Documentation/devicetree/bindings/serial/fsl-lpuart.txt
@@ -6,6 +6,8 @@ Required properties:
on Vybrid vf610 SoC with 8-bit register organization
- "fsl,ls1021a-lpuart" for lpuart compatible with the one integrated
on LS1021A SoC with 32-bit big-endian register organization
+ - "fsl,imx7ulp-lpuart" for lpuart compatible with the one integrated
+ on i.MX7ULP SoC with 32-bit little-endian register organization
- reg : Address and length of the register set for the device
- interrupts : Should contain uart interrupt
- clocks : phandle + clock specifier pairs, one for each entry in clock-names
diff --git a/Documentation/devicetree/bindings/serial/mtk-uart.txt b/Documentation/devicetree/bindings/serial/mtk-uart.txt
index 0015c722be7b..f73abff3de43 100644
--- a/Documentation/devicetree/bindings/serial/mtk-uart.txt
+++ b/Documentation/devicetree/bindings/serial/mtk-uart.txt
@@ -3,11 +3,14 @@
Required properties:
- compatible should contain:
* "mediatek,mt2701-uart" for MT2701 compatible UARTS
+ * "mediatek,mt2712-uart" for MT2712 compatible UARTS
* "mediatek,mt6580-uart" for MT6580 compatible UARTS
* "mediatek,mt6582-uart" for MT6582 compatible UARTS
* "mediatek,mt6589-uart" for MT6589 compatible UARTS
* "mediatek,mt6755-uart" for MT6755 compatible UARTS
* "mediatek,mt6795-uart" for MT6795 compatible UARTS
+ * "mediatek,mt6797-uart" for MT6797 compatible UARTS
+ * "mediatek,mt7622-uart" for MT7622 compatible UARTS
* "mediatek,mt7623-uart" for MT7623 compatible UARTS
* "mediatek,mt8127-uart" for MT8127 compatible UARTS
* "mediatek,mt8135-uart" for MT8135 compatible UARTS
diff --git a/Documentation/devicetree/bindings/serial/nvidia,tegra20-hsuart.txt b/Documentation/devicetree/bindings/serial/nvidia,tegra20-hsuart.txt
index c93a2d1c1a65..d7edf732eb7f 100644
--- a/Documentation/devicetree/bindings/serial/nvidia,tegra20-hsuart.txt
+++ b/Documentation/devicetree/bindings/serial/nvidia,tegra20-hsuart.txt
@@ -33,5 +33,4 @@ serial@70006000 {
reset-names = "serial";
dmas = <&apbdma 8>, <&apbdma 8>;
dma-names = "rx", "tx";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt b/Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt
index d5f73b8f614f..9d098cf73b53 100644
--- a/Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt
+++ b/Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt
@@ -72,13 +72,10 @@ Examples:
};
uarta: serial@12490000 {
- status = "ok";
};
uartb: serial@16340000 {
- status = "ok";
};
uartc: serial@1a240000 {
- status = "ok";
};
diff --git a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
index 8d27d1a603e7..cf504d0380ae 100644
--- a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
+++ b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
@@ -41,6 +41,10 @@ Required properties:
- "renesas,hscif-r8a7795" for R8A7795 (R-Car H3) HSCIF compatible UART.
- "renesas,scif-r8a7796" for R8A7796 (R-Car M3-W) SCIF compatible UART.
- "renesas,hscif-r8a7796" for R8A7796 (R-Car M3-W) HSCIF compatible UART.
+ - "renesas,scif-r8a77970" for R8A77970 (R-Car V3M) SCIF compatible UART.
+ - "renesas,hscif-r8a77970" for R8A77970 (R-Car V3M) HSCIF compatible UART.
+ - "renesas,scif-r8a77995" for R8A77995 (R-Car D3) SCIF compatible UART.
+ - "renesas,hscif-r8a77995" for R8A77995 (R-Car D3) HSCIF compatible UART.
- "renesas,scifa-sh73a0" for SH73A0 (SH-Mobile AG5) SCIFA compatible UART.
- "renesas,scifb-sh73a0" for SH73A0 (SH-Mobile AG5) SCIFB compatible UART.
- "renesas,rcar-gen1-scif" for R-Car Gen1 SCIF compatible UART,
diff --git a/Documentation/devicetree/bindings/serial/rs485.txt b/Documentation/devicetree/bindings/serial/rs485.txt
index 32b1fa1f2a5b..b8415936dfdb 100644
--- a/Documentation/devicetree/bindings/serial/rs485.txt
+++ b/Documentation/devicetree/bindings/serial/rs485.txt
@@ -5,14 +5,13 @@ the built-in half-duplex mode.
The properties described hereafter shall be given to a half-duplex capable
UART node.
-Required properties:
+Optional properties:
- rs485-rts-delay: prop-encoded-array <a b> where:
* a is the delay between rts signal and beginning of data sent in milliseconds.
it corresponds to the delay before sending data.
* b is the delay between end of data sent and rts signal in milliseconds
it corresponds to the delay after sending data and actual release of the line.
-
-Optional properties:
+ If this property is not specified, <0 0> is assumed.
- linux,rs485-enabled-at-boot-time: empty property telling to enable the rs485
feature at boot time. It can be disabled later with proper ioctl.
- rs485-rx-during-tx: empty property that enables the receiving of data even
diff --git a/Documentation/devicetree/bindings/serial/serial.txt b/Documentation/devicetree/bindings/serial/serial.txt
index b542a0ecf06e..863c2893759e 100644
--- a/Documentation/devicetree/bindings/serial/serial.txt
+++ b/Documentation/devicetree/bindings/serial/serial.txt
@@ -43,7 +43,6 @@ Examples:
rng-gpios = <&gpio2 25 GPIO_ACTIVE_LOW>;
cts-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
rts-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
- status = "okay";
};
scifa4: serial@e6c80000 {
@@ -54,5 +53,4 @@ Examples:
clock-names = "fck";
power-domains = <&pd_a3sp>;
uart-has-rtscts;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/serial/slave-device.txt b/Documentation/devicetree/bindings/serial/slave-device.txt
index f66037928f5f..40110e019620 100644
--- a/Documentation/devicetree/bindings/serial/slave-device.txt
+++ b/Documentation/devicetree/bindings/serial/slave-device.txt
@@ -21,6 +21,15 @@ Optional Properties:
can support. For example, a particular board has some signal
quality issue or the host processor can't support higher
baud rates.
+- current-speed : The current baud rate the device operates at. This should
+ only be present in case a driver has no chance to know
+ the baud rate of the slave device.
+ Examples:
+ * device supports auto-baud
+ * the rate is setup by a bootloader and there is no
+ way to reset the device
+ * device baud rate is configured by its firmware but
+ there is no way to request the actual settings
Example:
diff --git a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt
index 85ec5f2b1996..3657f9f9d17a 100644
--- a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt
+++ b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt
@@ -1,12 +1,19 @@
* STMicroelectronics STM32 USART
Required properties:
-- compatible: Can be either "st,stm32-usart", "st,stm32-uart",
-"st,stm32f7-usart" or "st,stm32f7-uart" depending on whether
-the device supports synchronous mode and is compatible with
-stm32(f4) or stm32f7.
+- compatible: can be either:
+ - "st,stm32-usart",
+ - "st,stm32-uart",
+ - "st,stm32f7-usart",
+ - "st,stm32f7-uart",
+ - "st,stm32h7-usart"
+ - "st,stm32h7-uart".
+ depending on whether the device supports synchronous mode
+ and is compatible with stm32(f4), stm32f7 or stm32h7.
- reg: The address and length of the peripheral registers space
-- interrupts: The interrupt line of the USART instance
+- interrupts:
+ - The interrupt line for the USART instance,
+ - An optional wake-up interrupt.
- clocks: The input clock of the USART instance
Optional properties:
diff --git a/Documentation/devicetree/bindings/serio/allwinner,sun4i-ps2.txt b/Documentation/devicetree/bindings/serio/allwinner,sun4i-ps2.txt
index 362a76925bcd..f311472990a7 100644
--- a/Documentation/devicetree/bindings/serio/allwinner,sun4i-ps2.txt
+++ b/Documentation/devicetree/bindings/serio/allwinner,sun4i-ps2.txt
@@ -19,5 +19,4 @@ Example:
reg = <0x01c2a000 0x400>;
interrupts = <0 62 4>;
clocks = <&apb1_gates 6>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt b/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
index 16fe94d7783c..40056f7990f8 100644
--- a/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
+++ b/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
@@ -9,11 +9,16 @@ domain control.
The driver implements the Generic PM domain bindings described in
power/power_domain.txt. It provides the power domains defined in
-include/dt-bindings/power/mt8173-power.h and mt2701-power.h.
+- include/dt-bindings/power/mt8173-power.h
+- include/dt-bindings/power/mt6797-power.h
+- include/dt-bindings/power/mt2701-power.h
+- include/dt-bindings/power/mt7622-power.h
Required properties:
- compatible: Should be one of:
- "mediatek,mt2701-scpsys"
+ - "mediatek,mt6797-scpsys"
+ - "mediatek,mt7622-scpsys"
- "mediatek,mt8173-scpsys"
- #power-domain-cells: Must be 1
- reg: Address range of the SCPSYS unit
@@ -22,6 +27,8 @@ Required properties:
These are clocks which hardware needs to be
enabled before enabling certain power domains.
Required clocks for MT2701: "mm", "mfg", "ethif"
+ Required clocks for MT6797: "mm", "mfg", "vdec"
+ Required clocks for MT7622: "hif_sel"
Required clocks for MT8173: "mm", "mfg", "venc", "venc_lt"
Optional properties:
diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,glink.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,glink.txt
new file mode 100644
index 000000000000..b277eca861f7
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,glink.txt
@@ -0,0 +1,74 @@
+Qualcomm GLINK edge binding
+
+This binding describes a Qualcomm GLINK edge, a fifo based mechanism for
+communication between subsystem-pairs on various Qualcomm platforms. Two types
+of edges can be described by the binding; the GLINK RPM edge and a SMEM based
+edge.
+
+- compatible:
+ Usage: required for glink-rpm
+ Value type: <stringlist>
+ Definition: must be "qcom,glink-rpm"
+
+- interrupts:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: should specify the IRQ used by the remote processor to
+ signal this processor about communication related events
+
+- qcom,rpm-msg-ram:
+ Usage: required for glink-rpm
+ Value type: <prop-encoded-array>
+ Definition: handle to RPM message memory resource
+
+- mboxes:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: reference to the "rpm_hlos" mailbox in APCS, as described
+ in mailbox/mailbox.txt
+
+= GLINK DEVICES
+Each subnode of the GLINK node represent function tied to a virtual
+communication channel. The name of the nodes are not important. The properties
+of these nodes are defined by the individual bindings for the specific function
+- but must contain the following property:
+
+- qcom,glink-channels:
+ Usage: required
+ Value type: <stringlist>
+ Definition: a list of channels tied to this function, used for matching
+ the function to a set of virtual channels
+
+= EXAMPLE
+The following example represents the GLINK RPM node on a MSM8996 device, with
+the function for the "rpm_request" channel defined, which is used for
+regualtors and root clocks.
+
+ apcs_glb: mailbox@9820000 {
+ compatible = "qcom,msm8996-apcs-hmss-global";
+ reg = <0x9820000 0x1000>;
+
+ #mbox-cells = <1>;
+ };
+
+ rpm_msg_ram: memory@68000 {
+ compatible = "qcom,rpm-msg-ram";
+ reg = <0x68000 0x6000>;
+ };
+
+ rpm-glink {
+ compatible = "qcom,glink-rpm";
+
+ interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
+
+ qcom,rpm-msg-ram = <&rpm_msg_ram>;
+
+ mboxes = <&apcs_glb 0>;
+
+ rpm-requests {
+ compatible = "qcom,rpm-msm8996";
+ qcom,glink-channels = "rpm_requests";
+
+ ...
+ };
+ };
diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,gsbi.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,gsbi.txt
index 2f5ede39bea2..fe1855f09dcc 100644
--- a/Documentation/devicetree/bindings/soc/qcom/qcom,gsbi.txt
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,gsbi.txt
@@ -78,7 +78,6 @@ Example for APQ8064:
interrupts = <0 152 0x0>;
clocks = <&gcc GSBI4_UART_CLK>, <&gcc GSBI4_H_CLK>;
clock-names = "core", "iface";
- status = "ok";
};
};
diff --git a/Documentation/devicetree/bindings/soc/rockchip/grf.txt b/Documentation/devicetree/bindings/soc/rockchip/grf.txt
index cc9f05d3cbc1..7dc5ce858a0e 100644
--- a/Documentation/devicetree/bindings/soc/rockchip/grf.txt
+++ b/Documentation/devicetree/bindings/soc/rockchip/grf.txt
@@ -21,6 +21,7 @@ Required Properties:
- "rockchip,rk3328-grf", "syscon": for rk3328
- "rockchip,rk3368-grf", "syscon": for rk3368
- "rockchip,rk3399-grf", "syscon": for rk3399
+ - "rockchip,rv1108-grf", "syscon": for rv1108
- compatible: PMUGRF should be one of the following:
- "rockchip,rk3368-pmugrf", "syscon": for rk3368
- "rockchip,rk3399-pmugrf", "syscon": for rk3399
@@ -28,6 +29,8 @@ Required Properties:
- "rockchip,rk3288-sgrf", "syscon": for rk3288
- compatible: USB2PHYGRF should be one of the followings
- "rockchip,rk3328-usb2phy-grf", "syscon": for rk3328
+- compatible: USBGRF should be one of the following
+ - "rockchip,rv1108-usbgrf", "syscon": for rv1108
- reg: physical base address of the controller and length of memory mapped
region.
diff --git a/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt b/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
index 01bfb6745fbd..301d2a9bc1b8 100644
--- a/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
+++ b/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
@@ -7,6 +7,7 @@ Required properties for power domain controller:
- compatible: Should be one of the following.
"rockchip,rk3288-power-controller" - for RK3288 SoCs.
"rockchip,rk3328-power-controller" - for RK3328 SoCs.
+ "rockchip,rk3366-power-controller" - for RK3366 SoCs.
"rockchip,rk3368-power-controller" - for RK3368 SoCs.
"rockchip,rk3399-power-controller" - for RK3399 SoCs.
- #power-domain-cells: Number of cells in a power-domain specifier.
@@ -18,6 +19,7 @@ Required properties for power domain sub nodes:
- reg: index of the power domain, should use macros in:
"include/dt-bindings/power/rk3288-power.h" - for RK3288 type power domain.
"include/dt-bindings/power/rk3328-power.h" - for RK3328 type power domain.
+ "include/dt-bindings/power/rk3366-power.h" - for RK3366 type power domain.
"include/dt-bindings/power/rk3368-power.h" - for RK3368 type power domain.
"include/dt-bindings/power/rk3399-power.h" - for RK3399 type power domain.
- clocks (optional): phandles to clocks which need to be enabled while power domain
@@ -93,6 +95,7 @@ power domain to use.
The index should use macros in:
"include/dt-bindings/power/rk3288-power.h" - for rk3288 type power domain.
"include/dt-bindings/power/rk3328-power.h" - for rk3328 type power domain.
+ "include/dt-bindings/power/rk3366-power.h" - for rk3366 type power domain.
"include/dt-bindings/power/rk3368-power.h" - for rk3368 type power domain.
"include/dt-bindings/power/rk3399-power.h" - for rk3399 type power domain.
diff --git a/Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt b/Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
index c705db07d820..66e6265fb0aa 100644
--- a/Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
+++ b/Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
@@ -46,12 +46,13 @@ Required Properties:
- power-domains: phandle pointing to the corresponding PM domain node
and an ID representing the device.
-See dt-bindings/genpd/k2g.h for the list of valid identifiers for k2g.
+See http://processors.wiki.ti.com/index.php/TISCI#66AK2G02_Data for the list
+of valid identifiers for k2g.
Example (K2G):
--------------------
uart0: serial@02530c00 {
compatible = "ns16550a";
...
- power-domains = <&k2g_pds K2G_DEV_UART0>;
+ power-domains = <&k2g_pds 0x002c>;
};
diff --git a/Documentation/devicetree/bindings/sound/armada-370db-audio.txt b/Documentation/devicetree/bindings/sound/armada-370db-audio.txt
index bf984d238620..953c092db72f 100644
--- a/Documentation/devicetree/bindings/sound/armada-370db-audio.txt
+++ b/Documentation/devicetree/bindings/sound/armada-370db-audio.txt
@@ -23,5 +23,4 @@ Example:
compatible = "marvell,a370db-audio";
marvell,audio-controller = <&audio_controller>;
marvell,audio-codec = <&audio_codec &spdif_out &spdif_in>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/sound/atmel-classd.txt b/Documentation/devicetree/bindings/sound/atmel-classd.txt
index 549e701cb7a1..898551076382 100644
--- a/Documentation/devicetree/bindings/sound/atmel-classd.txt
+++ b/Documentation/devicetree/bindings/sound/atmel-classd.txt
@@ -13,13 +13,11 @@ Required properties:
Must be "tx".
- clock-names
Tuple listing input clock names.
- Required elements: "pclk", "gclk" and "aclk".
+ Required elements: "pclk" and "gclk".
- clocks
Please refer to clock-bindings.txt.
- assigned-clocks
Should be <&classd_gclk>.
-- assigned-clock-parents
- Should be <&audio_pll_pmc>.
Optional properties:
- pinctrl-names, pinctrl-0
@@ -45,10 +43,9 @@ classd: classd@fc048000 {
(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
| AT91_XDMAC_DT_PERID(47))>;
dma-names = "tx";
- clocks = <&classd_clk>, <&classd_gclk>, <&audio_pll_pmc>;
- clock-names = "pclk", "gclk", "aclk";
+ clocks = <&classd_clk>, <&classd_gclk>;
+ clock-names = "pclk", "gclk";
assigned-clocks = <&classd_gclk>;
- assigned-clock-parents = <&audio_pll_pmc>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_classd_default>;
diff --git a/Documentation/devicetree/bindings/sound/audio-graph-card.txt b/Documentation/devicetree/bindings/sound/audio-graph-card.txt
new file mode 100644
index 000000000000..6e6720aa33f1
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/audio-graph-card.txt
@@ -0,0 +1,129 @@
+Audio Graph Card:
+
+Audio Graph Card specifies audio DAI connections of SoC <-> codec.
+It is based on common bindings for device graphs.
+see ${LINUX}/Documentation/devicetree/bindings/graph.txt
+
+Basically, Audio Graph Card property is same as Simple Card.
+see ${LINUX}/Documentation/devicetree/bindings/sound/simple-card.txt
+
+Below are same as Simple-Card.
+
+- label
+- widgets
+- routing
+- dai-format
+- frame-master
+- bitclock-master
+- bitclock-inversion
+- frame-inversion
+- dai-tdm-slot-num
+- dai-tdm-slot-width
+- clocks / system-clock-frequency
+
+Required properties:
+
+- compatible : "audio-graph-card";
+- dais : list of CPU DAI port{s}
+
+Optional properties:
+- pa-gpios: GPIO used to control external amplifier.
+
+Example: Single DAI case
+
+ sound_card {
+ compatible = "audio-graph-card";
+
+ dais = <&cpu_port>;
+ };
+
+ dai-controller {
+ ...
+ cpu_port: port {
+ cpu_endpoint: endpoint {
+ remote-endpoint = <&codec_endpoint>;
+
+ dai-format = "left_j";
+ ...
+ };
+ };
+ };
+
+ audio-codec {
+ ...
+ port {
+ codec_endpoint: endpoint {
+ remote-endpoint = <&cpu_endpoint>;
+ };
+ };
+ };
+
+Example: Multi DAI case
+
+ sound-card {
+ compatible = "audio-graph-card";
+
+ label = "sound-card";
+
+ dais = <&cpu_port0
+ &cpu_port1
+ &cpu_port2>;
+ };
+
+ audio-codec@0 {
+ ...
+ port {
+ codec0_endpoint: endpoint {
+ remote-endpoint = <&cpu_endpoint0>;
+ };
+ };
+ };
+
+ audio-codec@1 {
+ ...
+ port {
+ codec1_endpoint: endpoint {
+ remote-endpoint = <&cpu_endpoint1>;
+ };
+ };
+ };
+
+ audio-codec@2 {
+ ...
+ port {
+ codec2_endpoint: endpoint {
+ remote-endpoint = <&cpu_endpoint2>;
+ };
+ };
+ };
+
+ dai-controller {
+ ...
+ ports {
+ cpu_port0: port@0 {
+ cpu_endpoint0: endpoint {
+ remote-endpoint = <&codec0_endpoint>;
+
+ dai-format = "left_j";
+ ...
+ };
+ };
+ cpu_port1: port@1 {
+ cpu_endpoint1: endpoint {
+ remote-endpoint = <&codec1_endpoint>;
+
+ dai-format = "i2s";
+ ...
+ };
+ };
+ cpu_port2: port@2 {
+ cpu_endpoint2: endpoint {
+ remote-endpoint = <&codec2_endpoint>;
+
+ dai-format = "i2s";
+ ...
+ };
+ };
+ };
+ };
+
diff --git a/Documentation/devicetree/bindings/sound/audio-graph-scu-card.txt b/Documentation/devicetree/bindings/sound/audio-graph-scu-card.txt
new file mode 100644
index 000000000000..8b8afe9fcb31
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/audio-graph-scu-card.txt
@@ -0,0 +1,122 @@
+Audio-Graph-SCU-Card:
+
+Audio-Graph-SCU-Card is "Audio-Graph-Card" + "ALSA DPCM".
+
+It is based on common bindings for device graphs.
+see ${LINUX}/Documentation/devicetree/bindings/graph.txt
+
+Basically, Audio-Graph-SCU-Card property is same as
+Simple-Card / Simple-SCU-Card / Audio-Graph-Card.
+see ${LINUX}/Documentation/devicetree/bindings/sound/simple-card.txt
+ ${LINUX}/Documentation/devicetree/bindings/sound/simple-scu-card.txt
+ ${LINUX}/Documentation/devicetree/bindings/sound/audio-graph-card.txt
+
+Below are same as Simple-Card / Audio-Graph-Card.
+
+- label
+- dai-format
+- frame-master
+- bitclock-master
+- bitclock-inversion
+- frame-inversion
+- dai-tdm-slot-num
+- dai-tdm-slot-width
+- clocks / system-clock-frequency
+
+Below are same as Simple-SCU-Card.
+
+- convert-rate
+- convert-channels
+- prefix
+- routing
+
+Required properties:
+
+- compatible : "audio-graph-scu-card";
+- dais : list of CPU DAI port{s}
+
+Example 1. Sampling Rate Conversion
+
+ sound_card {
+ compatible = "audio-graph-scu-card";
+
+ label = "sound-card";
+ prefix = "codec";
+ routing = "codec Playback", "DAI0 Playback",
+ "codec Playback", "DAI1 Playback";
+ convert-rate = <48000>;
+
+ dais = <&cpu_port>;
+ };
+
+ audio-codec {
+ ...
+
+ port {
+ codec_endpoint: endpoint {
+ remote-endpoint = <&cpu_endpoint>;
+ };
+ };
+ };
+
+ dai-controller {
+ ...
+ cpu_port: port {
+ cpu_endpoint: endpoint {
+ remote-endpoint = <&codec_endpoint>;
+
+ dai-format = "left_j";
+ ...
+ };
+ };
+ };
+
+Example 2. 2 CPU 1 Codec (Mixing)
+
+ sound_card {
+ compatible = "audio-graph-scu-card";
+
+ label = "sound-card";
+ prefix = "codec";
+ routing = "codec Playback", "DAI0 Playback",
+ "codec Playback", "DAI1 Playback";
+ convert-rate = <48000>;
+
+ dais = <&cpu_port0
+ &cpu_port1>;
+ };
+
+ audio-codec {
+ ...
+
+ port {
+ codec_endpoint0: endpoint {
+ remote-endpoint = <&cpu_endpoint0>;
+ };
+ codec_endpoint1: endpoint {
+ remote-endpoint = <&cpu_endpoint1>;
+ };
+ };
+ };
+
+ dai-controller {
+ ...
+ ports {
+ cpu_port0: port {
+ cpu_endpoint0: endpoint {
+ remote-endpoint = <&codec_endpoint0>;
+
+ dai-format = "left_j";
+ ...
+ };
+ };
+ cpu_port1: port {
+ cpu_endpoint1: endpoint {
+ remote-endpoint = <&codec_endpoint1>;
+
+ dai-format = "left_j";
+ ...
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/sound/axentia,tse850-pcm5142.txt b/Documentation/devicetree/bindings/sound/axentia,tse850-pcm5142.txt
index fdb25b492514..9d049d4bfd58 100644
--- a/Documentation/devicetree/bindings/sound/axentia,tse850-pcm5142.txt
+++ b/Documentation/devicetree/bindings/sound/axentia,tse850-pcm5142.txt
@@ -45,7 +45,6 @@ Example:
&ssc0 {
#sound-dai-cells = <0>;
- status = "okay";
};
&i2c {
diff --git a/Documentation/devicetree/bindings/sound/brcm,cygnus-audio.txt b/Documentation/devicetree/bindings/sound/brcm,cygnus-audio.txt
index b139e66d2a11..630bf7c0344d 100644
--- a/Documentation/devicetree/bindings/sound/brcm,cygnus-audio.txt
+++ b/Documentation/devicetree/bindings/sound/brcm,cygnus-audio.txt
@@ -47,21 +47,17 @@ Example:
ssp0: ssp_port@0 {
reg = <0>;
- status = "okay";
};
ssp1: ssp_port@1 {
reg = <1>;
- status = "disabled";
};
ssp2: ssp_port@2 {
reg = <2>;
- status = "disabled";
};
spdif: spdif_port@3 {
reg = <3>;
- status = "disabled";
};
};
diff --git a/Documentation/devicetree/bindings/sound/cs35l35.txt b/Documentation/devicetree/bindings/sound/cs35l35.txt
index 016b768bc722..77ee75c39233 100644
--- a/Documentation/devicetree/bindings/sound/cs35l35.txt
+++ b/Documentation/devicetree/bindings/sound/cs35l35.txt
@@ -16,6 +16,9 @@ Required properties:
(See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
for further information relating to interrupt properties)
+ - cirrus,boost-ind-nanohenry: Inductor value for boost converter. The value is
+ in nH and they can be values of 1000nH, 1200nH, 1500nH, and 2200nH.
+
Optional properties:
- reset-gpios : gpio used to reset the amplifier
diff --git a/Documentation/devicetree/bindings/sound/cs43130.txt b/Documentation/devicetree/bindings/sound/cs43130.txt
new file mode 100644
index 000000000000..8b1dd5aeb004
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/cs43130.txt
@@ -0,0 +1,67 @@
+CS43130 DAC
+
+Required properties:
+
+ - compatible : "cirrus,cs43130", "cirrus,cs4399", "cirrus,cs43131",
+ "cirrus,cs43198"
+
+ - reg : the I2C address of the device for I2C
+
+ - VA-supply, VP-supply, VL-supply, VCP-supply, VD-supply:
+ power supplies for the device, as covered in
+ Documentation/devicetree/bindings/regulator/regulator.txt.
+
+
+Optional properties:
+
+ - reset-gpios : Active low GPIO used to reset the device
+
+ - cirrus,xtal-ibias:
+ When external MCLK is generated by external crystal
+ oscillator, CS43130 can be used to provide bias current
+ for external crystal. Amount of bias current sent is
+ set as:
+ 1 = 7.5uA
+ 2 = 12.5uA
+ 3 = 15uA
+
+ - cirrus,dc-measure:
+ Boolean, define to enable headphone DC impedance measurement.
+
+ - cirrus,ac-measure:
+ Boolean, define to enable headphone AC impedance measurement.
+ DC impedance must also be enabled for AC impedance measurement.
+
+ - cirrus,dc-threshold:
+ Define 2 DC impedance thresholds in ohms for HP output control.
+ Default values are 50 and 120 Ohms.
+
+ - cirrus,ac-freq:
+ Define the frequencies at which to measure HP AC impedance.
+ Only used if "cirrus,dc-measure" is defined.
+ Exactly 10 frequencies must be defined.
+ If this properties is undefined, by default,
+ following frequencies are used:
+ <24 43 93 200 431 928 2000 4309 9283 20000>
+ The above frequencies are logarithmically equally spaced.
+ Log base is 10.
+
+Example:
+
+cs43130: audio-codec@30 {
+ compatible = "cirrus,cs43130";
+ reg = <0x30>;
+ reset-gpios = <&axi_gpio 54 0>;
+ VA-supply = <&dummy_vreg>;
+ VP-supply = <&dummy_vreg>;
+ VL-supply = <&dummy_vreg>;
+ VCP-supply = <&dummy_vreg>;
+ VD-supply = <&dummy_vreg>;
+ cirrus,xtal-ibias = <2>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <55 8>;
+ cirrus,dc-measure;
+ cirrus,ac-measure;
+ cirrus,dc-threshold = /bits/ 16 <20 100>;
+ cirrus,ac-freq = /bits/ 16 <24 43 93 200 431 928 2000 4309 9283 20000>;
+};
diff --git a/Documentation/devicetree/bindings/sound/davinci-mcbsp.txt b/Documentation/devicetree/bindings/sound/davinci-mcbsp.txt
index e0b6165c9cfc..3ffc2562fb31 100644
--- a/Documentation/devicetree/bindings/sound/davinci-mcbsp.txt
+++ b/Documentation/devicetree/bindings/sound/davinci-mcbsp.txt
@@ -47,5 +47,4 @@ mcbsp0: mcbsp@1d10000 {
dmas = <&edma0 3 1
&edma0 2 1>;
dma-names = "tx", "rx";
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/sound/dmic.txt b/Documentation/devicetree/bindings/sound/dmic.txt
new file mode 100644
index 000000000000..54c8ef6498a8
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/dmic.txt
@@ -0,0 +1,16 @@
+Device-Tree bindings for Digital microphone (DMIC) codec
+
+This device support generic PDM digital microphone.
+
+Required properties:
+ - compatible: should be "dmic-codec".
+
+Optional properties:
+ - dmicen-gpios: GPIO specifier for dmic to control start and stop
+
+Example node:
+
+ dmic_codec: dmic@0 {
+ compatible = "dmic-codec";
+ dmicen-gpios = <&gpio4 3 GPIO_ACTIVE_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/sound/fsl,asrc.txt b/Documentation/devicetree/bindings/sound/fsl,asrc.txt
index 3e26a9478e57..65979b205893 100644
--- a/Documentation/devicetree/bindings/sound/fsl,asrc.txt
+++ b/Documentation/devicetree/bindings/sound/fsl,asrc.txt
@@ -61,5 +61,4 @@ asrc: asrc@02034000 {
"txa", "txb", "txc";
fsl,asrc-rate = <48000>;
fsl,asrc-width = <16>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/sound/fsl,esai.txt b/Documentation/devicetree/bindings/sound/fsl,esai.txt
index cd3ee5d84f03..21c401e2ccda 100644
--- a/Documentation/devicetree/bindings/sound/fsl,esai.txt
+++ b/Documentation/devicetree/bindings/sound/fsl,esai.txt
@@ -59,5 +59,4 @@ esai: esai@02024000 {
fsl,fifo-depth = <128>;
fsl,esai-synchronous;
big-endian;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/sound/fsl,spdif.txt b/Documentation/devicetree/bindings/sound/fsl,spdif.txt
index 4ca39ddc0417..0f97e54c3d43 100644
--- a/Documentation/devicetree/bindings/sound/fsl,spdif.txt
+++ b/Documentation/devicetree/bindings/sound/fsl,spdif.txt
@@ -59,5 +59,4 @@ spdif: spdif@02004000 {
"rxtx7";
big-endian;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/sound/hdmi.txt b/Documentation/devicetree/bindings/sound/hdmi.txt
index 31af7bca3099..56407c30e954 100644
--- a/Documentation/devicetree/bindings/sound/hdmi.txt
+++ b/Documentation/devicetree/bindings/sound/hdmi.txt
@@ -13,5 +13,4 @@ Example node:
hdmi_audio: hdmi_audio@0 {
compatible = "linux,hdmi-audio";
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/sound/mt2701-afe-pcm.txt b/Documentation/devicetree/bindings/sound/mt2701-afe-pcm.txt
index 9800a560e0c2..77a57f84bed4 100644
--- a/Documentation/devicetree/bindings/sound/mt2701-afe-pcm.txt
+++ b/Documentation/devicetree/bindings/sound/mt2701-afe-pcm.txt
@@ -3,7 +3,8 @@ Mediatek AFE PCM controller for mt2701
Required properties:
- compatible = "mediatek,mt2701-audio";
- reg: register location and size
-- interrupts: Should contain AFE interrupt
+- interrupts: should contain AFE and ASYS interrupts
+- interrupt-names: should be "afe" and "asys"
- power-domains: should define the power domain
- clock-names: should have these clock names:
"infra_sys_audio_clk",
@@ -59,6 +60,7 @@ Example:
<0 0x112A0000 0 0x20000>;
interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_LOW>,
<GIC_SPI 132 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-names = "afe", "asys";
power-domains = <&scpsys MT2701_POWER_DOMAIN_IFR_MSC>;
clocks = <&infracfg CLK_INFRA_AUDIO>,
<&topckgen CLK_TOP_AUD_MUX1_SEL>,
diff --git a/Documentation/devicetree/bindings/sound/nau8825.txt b/Documentation/devicetree/bindings/sound/nau8825.txt
index d3374231c871..2f5e973285a6 100644
--- a/Documentation/devicetree/bindings/sound/nau8825.txt
+++ b/Documentation/devicetree/bindings/sound/nau8825.txt
@@ -69,6 +69,8 @@ Optional properties:
- nuvoton,jack-insert-debounce: number from 0 to 7 that sets debounce time to 2^(n+2) ms
- nuvoton,jack-eject-debounce: number from 0 to 7 that sets debounce time to 2^(n+2) ms
+ - nuvoton,crosstalk-bypass: make crosstalk function bypass if set.
+
- clocks: list of phandle and clock specifier pairs according to common clock bindings for the
clocks described in clock-names
- clock-names: should include "mclk" for the MCLK master clock
@@ -96,6 +98,7 @@ Example:
nuvoton,short-key-debounce = <2>;
nuvoton,jack-insert-debounce = <7>;
nuvoton,jack-eject-debounce = <7>;
+ nuvoton,crosstalk-bypass;
clock-names = "mclk";
clocks = <&tegra_car TEGRA210_CLK_CLK_OUT_2>;
diff --git a/Documentation/devicetree/bindings/sound/qcom,msm8916-wcd-analog.txt b/Documentation/devicetree/bindings/sound/qcom,msm8916-wcd-analog.txt
index ccb401cfef9d..551ecab67efe 100644
--- a/Documentation/devicetree/bindings/sound/qcom,msm8916-wcd-analog.txt
+++ b/Documentation/devicetree/bindings/sound/qcom,msm8916-wcd-analog.txt
@@ -31,8 +31,22 @@ Required properties
- vdd-cdc-io-supply: phandle to VDD_CDC_IO regulator DT node.
- vdd-cdc-tx-rx-cx-supply: phandle to VDD_CDC_TX/RX/CX regulator DT node.
- vdd-micbias-supply: phandle of VDD_MICBIAS supply's regulator DT node.
-
Optional Properties:
+ - qcom,mbhc-vthreshold-low: Array of 5 threshold voltages in mV for 5 buttons
+ detection on headset when the mbhc is powered up
+ by internal current source, this is a low power.
+ - qcom,mbhc-vthreshold-high: Array of 5 thresold voltages in mV for 5 buttons
+ detection on headset when mbhc is powered up
+ from micbias.
+- qcom,micbias-lvl: Voltage (mV) for Mic Bias
+- qcom,hphl-jack-type-normally-open: boolean, present if hphl pin on jack is a
+ NO (Normally Open). If not specified, then
+ its assumed that hphl pin on jack is NC
+ (Normally Closed).
+- qcom,gnd-jack-type-normally-open: boolean, present if gnd pin on jack is
+ NO (Normally Open). If not specified, then
+ its assumed that gnd pin on jack is NC
+ (Normally Closed).
- qcom,micbias1-ext-cap: boolean, present if micbias1 has external capacitor
connected.
- qcom,micbias2-ext-cap: boolean, present if micbias2 has external capacitor
@@ -48,6 +62,8 @@ spmi_bus {
reg-names = "pmic-codec-core";
clocks = <&gcc GCC_CODEC_DIGCODEC_CLK>;
clock-names = "mclk";
+ qcom,mbhc-vthreshold-low = <75 150 237 450 500>;
+ qcom,mbhc-vthreshold-high = <75 150 237 450 500>;
interrupt-parent = <&spmi_bus>;
interrupts = <0x1 0xf0 0x0 IRQ_TYPE_NONE>,
<0x1 0xf0 0x1 IRQ_TYPE_NONE>,
diff --git a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt
index 15a7316e4c91..085bec364caf 100644
--- a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt
+++ b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt
@@ -83,11 +83,11 @@ SRC can convert [xx]Hz to [yy]Hz. Then, it has below 2 modes
** Asynchronous mode
------------------
-You need to use "renesas,rsrc-card" sound card for it.
+You need to use "simple-scu-audio-card" sound card for it.
example)
sound {
- compatible = "renesas,rsrc-card";
+ compatible = "simple-scu-audio-card";
...
/*
* SRC Asynchronous mode setting
@@ -97,12 +97,12 @@ example)
* Inputed 48kHz data will be converted to
* system specified Hz
*/
- convert-rate = <48000>;
+ simple-audio-card,convert-rate = <48000>;
...
- cpu {
+ simple-audio-card,cpu {
sound-dai = <&rcar_sound>;
};
- codec {
+ simple-audio-card,codec {
...
};
};
@@ -141,23 +141,23 @@ For more detail information, see below
${LINUX}/sound/soc/sh/rcar/ctu.c
- comment of header
-You need to use "renesas,rsrc-card" sound card for it.
+You need to use "simple-scu-audio-card" sound card for it.
example)
sound {
- compatible = "renesas,rsrc-card";
+ compatible = "simple-scu-audio-card";
...
/*
* CTU setting
* All input data will be converted to 2ch
* as output data
*/
- convert-channels = <2>;
+ simple-audio-card,convert-channels = <2>;
...
- cpu {
+ simple-audio-card,cpu {
sound-dai = <&rcar_sound>;
};
- codec {
+ simple-audio-card,codec {
...
};
};
@@ -190,22 +190,22 @@ and these sounds will be merged by MIX.
aplay -D plughw:0,0 xxxx.wav &
aplay -D plughw:0,1 yyyy.wav
-You need to use "renesas,rsrc-card" sound card for it.
+You need to use "simple-scu-audio-card" sound card for it.
Ex)
[MEM] -> [SRC1] -> [CTU02] -+-> [MIX0] -> [DVC0] -> [SSI0]
|
[MEM] -> [SRC2] -> [CTU03] -+
sound {
- compatible = "renesas,rsrc-card";
+ compatible = "simple-scu-audio-card";
...
- cpu@0 {
+ simple-audio-card,cpu-0 {
sound-dai = <&rcar_sound 0>;
};
- cpu@1 {
+ simple-audio-card,cpu-1 {
sound-dai = <&rcar_sound 1>;
};
- codec {
+ simple-audio-card,codec {
...
};
};
@@ -368,6 +368,10 @@ Required properties:
see below for detail.
- #sound-dai-cells : it must be 0 if your system is using single DAI
it must be 1 if your system is using multi DAI
+- clocks : References to SSI/SRC/MIX/CTU/DVC/AUDIO_CLK clocks.
+- clock-names : List of necessary clock names.
+ "ssi-all", "ssi.X", "src.X", "mix.X", "ctu.X",
+ "dvc.X", "clk_a", "clk_b", "clk_c", "clk_i"
Optional properties:
- #clock-cells : it must be 0 if your system has audio_clkout
@@ -375,6 +379,9 @@ Optional properties:
- clock-frequency : for all audio_clkout0/1/2/3
- clkout-lr-asynchronous : boolean property. it indicates that audio_clkoutn
is asynchronizes with lr-clock.
+- resets : References to SSI resets.
+- reset-names : List of valid reset names.
+ "ssi-all", "ssi.X"
SSI subnode properties:
- interrupts : Should contain SSI interrupt for PIO transfer
@@ -434,79 +441,79 @@ rcar_sound: sound@ec500000 {
"clk_a", "clk_b", "clk_c", "clk_i";
rcar_sound,dvc {
- dvc0: dvc@0 {
+ dvc0: dvc-0 {
dmas = <&audma0 0xbc>;
dma-names = "tx";
};
- dvc1: dvc@1 {
+ dvc1: dvc-1 {
dmas = <&audma0 0xbe>;
dma-names = "tx";
};
};
rcar_sound,mix {
- mix0: mix@0 { };
- mix1: mix@1 { };
+ mix0: mix-0 { };
+ mix1: mix-1 { };
};
rcar_sound,ctu {
- ctu00: ctu@0 { };
- ctu01: ctu@1 { };
- ctu02: ctu@2 { };
- ctu03: ctu@3 { };
- ctu10: ctu@4 { };
- ctu11: ctu@5 { };
- ctu12: ctu@6 { };
- ctu13: ctu@7 { };
+ ctu00: ctu-0 { };
+ ctu01: ctu-1 { };
+ ctu02: ctu-2 { };
+ ctu03: ctu-3 { };
+ ctu10: ctu-4 { };
+ ctu11: ctu-5 { };
+ ctu12: ctu-6 { };
+ ctu13: ctu-7 { };
};
rcar_sound,src {
- src0: src@0 {
+ src0: src-0 {
interrupts = <0 352 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x85>, <&audma1 0x9a>;
dma-names = "rx", "tx";
};
- src1: src@1 {
+ src1: src-1 {
interrupts = <0 353 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x87>, <&audma1 0x9c>;
dma-names = "rx", "tx";
};
- src2: src@2 {
+ src2: src-2 {
interrupts = <0 354 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x89>, <&audma1 0x9e>;
dma-names = "rx", "tx";
};
- src3: src@3 {
+ src3: src-3 {
interrupts = <0 355 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x8b>, <&audma1 0xa0>;
dma-names = "rx", "tx";
};
- src4: src@4 {
+ src4: src-4 {
interrupts = <0 356 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x8d>, <&audma1 0xb0>;
dma-names = "rx", "tx";
};
- src5: src@5 {
+ src5: src-5 {
interrupts = <0 357 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x8f>, <&audma1 0xb2>;
dma-names = "rx", "tx";
};
- src6: src@6 {
+ src6: src-6 {
interrupts = <0 358 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x91>, <&audma1 0xb4>;
dma-names = "rx", "tx";
};
- src7: src@7 {
+ src7: src-7 {
interrupts = <0 359 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x93>, <&audma1 0xb6>;
dma-names = "rx", "tx";
};
- src8: src@8 {
+ src8: src-8 {
interrupts = <0 360 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x95>, <&audma1 0xb8>;
dma-names = "rx", "tx";
};
- src9: src@9 {
+ src9: src-9 {
interrupts = <0 361 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x97>, <&audma1 0xba>;
dma-names = "rx", "tx";
@@ -514,52 +521,52 @@ rcar_sound: sound@ec500000 {
};
rcar_sound,ssi {
- ssi0: ssi@0 {
+ ssi0: ssi-0 {
interrupts = <0 370 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x01>, <&audma1 0x02>, <&audma0 0x15>, <&audma1 0x16>;
dma-names = "rx", "tx", "rxu", "txu";
};
- ssi1: ssi@1 {
+ ssi1: ssi-1 {
interrupts = <0 371 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x03>, <&audma1 0x04>, <&audma0 0x49>, <&audma1 0x4a>;
dma-names = "rx", "tx", "rxu", "txu";
};
- ssi2: ssi@2 {
+ ssi2: ssi-2 {
interrupts = <0 372 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x05>, <&audma1 0x06>, <&audma0 0x63>, <&audma1 0x64>;
dma-names = "rx", "tx", "rxu", "txu";
};
- ssi3: ssi@3 {
+ ssi3: ssi-3 {
interrupts = <0 373 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x07>, <&audma1 0x08>, <&audma0 0x6f>, <&audma1 0x70>;
dma-names = "rx", "tx", "rxu", "txu";
};
- ssi4: ssi@4 {
+ ssi4: ssi-4 {
interrupts = <0 374 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x09>, <&audma1 0x0a>, <&audma0 0x71>, <&audma1 0x72>;
dma-names = "rx", "tx", "rxu", "txu";
};
- ssi5: ssi@5 {
+ ssi5: ssi-5 {
interrupts = <0 375 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x0b>, <&audma1 0x0c>, <&audma0 0x73>, <&audma1 0x74>;
dma-names = "rx", "tx", "rxu", "txu";
};
- ssi6: ssi@6 {
+ ssi6: ssi-6 {
interrupts = <0 376 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x0d>, <&audma1 0x0e>, <&audma0 0x75>, <&audma1 0x76>;
dma-names = "rx", "tx", "rxu", "txu";
};
- ssi7: ssi@7 {
+ ssi7: ssi-7 {
interrupts = <0 377 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x0f>, <&audma1 0x10>, <&audma0 0x79>, <&audma1 0x7a>;
dma-names = "rx", "tx", "rxu", "txu";
};
- ssi8: ssi@8 {
+ ssi8: ssi-8 {
interrupts = <0 378 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x11>, <&audma1 0x12>, <&audma0 0x7b>, <&audma1 0x7c>;
dma-names = "rx", "tx", "rxu", "txu";
};
- ssi9: ssi@9 {
+ ssi9: ssi-9 {
interrupts = <0 379 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&audma0 0x13>, <&audma1 0x14>, <&audma0 0x7d>, <&audma1 0x7e>;
dma-names = "rx", "tx", "rxu", "txu";
@@ -614,7 +621,6 @@ Example: simple sound card
/* Single DAI */
#sound-dai-cells = <0>;
- status = "okay";
rcar_sound,dai {
dai0 {
@@ -660,7 +666,6 @@ Example: simple sound card for Multi channel
/* Single DAI */
#sound-dai-cells = <0>;
- status = "okay";
rcar_sound,dai {
dai0 {
diff --git a/Documentation/devicetree/bindings/sound/rockchip,pdm.txt b/Documentation/devicetree/bindings/sound/rockchip,pdm.txt
new file mode 100644
index 000000000000..47f164fbd1d7
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/rockchip,pdm.txt
@@ -0,0 +1,41 @@
+* Rockchip PDM controller
+
+Required properties:
+
+- compatible: "rockchip,pdm"
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- dmas: DMA specifiers for rx dma. See the DMA client binding,
+ Documentation/devicetree/bindings/dma/dma.txt
+- dma-names: should include "rx".
+- clocks: a list of phandle + clock-specifer pairs, one for each entry in clock-names.
+- clock-names: should contain following:
+ - "pdm_hclk": clock for PDM BUS
+ - "pdm_clk" : clock for PDM controller
+- pinctrl-names: Must contain a "default" entry.
+- pinctrl-N: One property must exist for each entry in
+ pinctrl-names. See ../pinctrl/pinctrl-bindings.txt
+ for details of the property values.
+
+Example for rk3328 PDM controller:
+
+pdm: pdm@ff040000 {
+ compatible = "rockchip,pdm";
+ reg = <0x0 0xff040000 0x0 0x1000>;
+ clocks = <&clk_pdm>, <&clk_gates28 0>;
+ clock-names = "pdm_clk", "pdm_hclk";
+ dmas = <&pdma 16>;
+ #dma-cells = <1>;
+ dma-names = "rx";
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&pdmm0_clk
+ &pdmm0_sdi0
+ &pdmm0_sdi1
+ &pdmm0_sdi2
+ &pdmm0_sdi3>;
+ pinctrl-1 = <&pdmm0_clk_sleep
+ &pdmm0_sdi0_sleep
+ &pdmm0_sdi1_sleep
+ &pdmm0_sdi2_sleep
+ &pdmm0_sdi3_sleep>;
+};
diff --git a/Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt b/Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt
index eac91db07178..72d3cf4c2606 100644
--- a/Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt
+++ b/Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt
@@ -4,7 +4,7 @@ Required properties:
- compatible: "rockchip,rk3399-gru-sound"
- rockchip,cpu: The phandle of the Rockchip I2S controller that's
connected to the codecs
-- rockchip,codec: The phandle of the MAX98357A/RT5514/DA7219 codecs
+- rockchip,codec: The phandle of the audio codecs
Optional properties:
- dmic-wakeup-delay-ms : specify delay time (ms) for DMIC ready.
diff --git a/Documentation/devicetree/bindings/sound/rockchip-i2s.txt b/Documentation/devicetree/bindings/sound/rockchip-i2s.txt
index 206aba1b34bb..b208a752576c 100644
--- a/Documentation/devicetree/bindings/sound/rockchip-i2s.txt
+++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.txt
@@ -7,8 +7,12 @@ Required properties:
- compatible: should be one of the following:
- "rockchip,rk3066-i2s": for rk3066
+ - "rockchip,rk3036-i2s", "rockchip,rk3066-i2s": for rk3036
- "rockchip,rk3188-i2s", "rockchip,rk3066-i2s": for rk3188
+ - "rockchip,rk3228-i2s", "rockchip,rk3066-i2s": for rk3228
- "rockchip,rk3288-i2s", "rockchip,rk3066-i2s": for rk3288
+ - "rockchip,rk3328-i2s", "rockchip,rk3066-i2s": for rk3328
+ - "rockchip,rk3366-i2s", "rockchip,rk3066-i2s": for rk3366
- "rockchip,rk3368-i2s", "rockchip,rk3066-i2s": for rk3368
- "rockchip,rk3399-i2s", "rockchip,rk3066-i2s": for rk3399
- reg: physical base address of the controller and length of memory mapped
diff --git a/Documentation/devicetree/bindings/sound/rockchip-spdif.txt b/Documentation/devicetree/bindings/sound/rockchip-spdif.txt
index 11046429a118..0a1dc4e1815c 100644
--- a/Documentation/devicetree/bindings/sound/rockchip-spdif.txt
+++ b/Documentation/devicetree/bindings/sound/rockchip-spdif.txt
@@ -9,7 +9,9 @@ Required properties:
- compatible: should be one of the following:
- "rockchip,rk3066-spdif"
- "rockchip,rk3188-spdif"
+ - "rockchip,rk3228-spdif"
- "rockchip,rk3288-spdif"
+ - "rockchip,rk3328-spdif"
- "rockchip,rk3366-spdif"
- "rockchip,rk3368-spdif"
- "rockchip,rk3399-spdif"
@@ -39,6 +41,5 @@ spdif: spdif@0x1011e000 {
dma-names = "tx";
clock-names = "hclk", "mclk";
clocks = <&cru HCLK_SPDIF>, <&cru SCLK_SPDIF>;
- status = "disabled";
#sound-dai-cells = <0>;
};
diff --git a/Documentation/devicetree/bindings/sound/rt274.txt b/Documentation/devicetree/bindings/sound/rt274.txt
new file mode 100644
index 000000000000..e9a6178c78cf
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/rt274.txt
@@ -0,0 +1,33 @@
+RT274 audio CODEC
+
+This device supports I2C only.
+
+Required properties:
+
+- compatible : "realtek,rt274".
+
+- reg : The I2C address of the device.
+
+Optional properties:
+
+- interrupts : The CODEC's interrupt output.
+
+
+Pins on the device (for linking into audio routes) for RT274:
+
+ * DMIC1 Pin
+ * DMIC2 Pin
+ * MIC
+ * LINE1
+ * LINE2
+ * HPO Pin
+ * SPDIF
+ * LINE3
+
+Example:
+
+codec: rt274@1c {
+ compatible = "realtek,rt274";
+ reg = <0x1c>;
+ interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+};
diff --git a/Documentation/devicetree/bindings/sound/rt5663.txt b/Documentation/devicetree/bindings/sound/rt5663.txt
index 70eaeaed2b18..ff381718c517 100644
--- a/Documentation/devicetree/bindings/sound/rt5663.txt
+++ b/Documentation/devicetree/bindings/sound/rt5663.txt
@@ -12,6 +12,14 @@ Required properties:
Optional properties:
+- "realtek,dc_offset_l_manual"
+- "realtek,dc_offset_r_manual"
+- "realtek,dc_offset_l_manual_mic"
+- "realtek,dc_offset_r_manual_mic"
+ Based on the different PCB layout, add the manual offset value to
+ compensate the DC offset for each L and R channel, and they are different
+ between headphone and headset.
+
Pins on the device (for linking into audio routes) for RT5663:
* IN1P
diff --git a/Documentation/devicetree/bindings/sound/samsung,odroid.txt b/Documentation/devicetree/bindings/sound/samsung,odroid.txt
index c1ac70cb0afb..625b1b18fd02 100644
--- a/Documentation/devicetree/bindings/sound/samsung,odroid.txt
+++ b/Documentation/devicetree/bindings/sound/samsung,odroid.txt
@@ -5,16 +5,8 @@ Required properties:
- compatible - "samsung,odroidxu3-audio" - for Odroid XU3 board,
"samsung,odroidxu4-audio" - for Odroid XU4 board
- model - the user-visible name of this sound complex
- - 'cpu' subnode with a 'sound-dai' property containing the phandle of the I2S
- controller
- - 'codec' subnode with a 'sound-dai' property containing list of phandles
- to the CODEC nodes, first entry must be corresponding to the MAX98090
- CODEC and the second entry must be the phandle of the HDMI IP block node
- clocks - should contain entries matching clock names in the clock-names
property
- - clock-names - should contain following entries:
- - "epll" - indicating the EPLL output clock
- - "i2s_rclk" - indicating the RCLK (root) clock of the I2S0 controller
- samsung,audio-widgets - this property specifies off-codec audio elements
like headphones or speakers, for details see widgets.txt
- samsung,audio-routing - a list of the connections between audio
@@ -32,12 +24,18 @@ Required properties:
For Odroid XU4:
no entries
+Required sub-nodes:
+
+ - 'cpu' subnode with a 'sound-dai' property containing the phandle of the I2S
+ controller
+ - 'codec' subnode with a 'sound-dai' property containing list of phandles
+ to the CODEC nodes, first entry must be corresponding to the MAX98090
+ CODEC and the second entry must be the phandle of the HDMI IP block node
+
Example:
sound {
compatible = "samsung,odroidxu3-audio";
- samsung,cpu-dai = <&i2s0>;
- samsung,codec-dai = <&max98090>;
model = "Odroid-XU3";
samsung,audio-routing =
"Headphone Jack", "HPL",
@@ -45,9 +43,6 @@ sound {
"IN1", "Mic Jack",
"Mic Jack", "MICBIAS";
- clocks = <&clock CLK_FOUT_EPLL>, <&i2s0 CLK_I2S_RCLK_SRC>;
- clock-names = "epll", "sclk_i2s";
-
cpu {
sound-dai = <&i2s0 0>;
};
diff --git a/Documentation/devicetree/bindings/sound/simple-card.txt b/Documentation/devicetree/bindings/sound/simple-card.txt
index c7a93931fad2..166f2290233b 100644
--- a/Documentation/devicetree/bindings/sound/simple-card.txt
+++ b/Documentation/devicetree/bindings/sound/simple-card.txt
@@ -86,6 +86,9 @@ Optional CPU/CODEC subnodes properties:
in dai startup() and disabled with
clk_disable_unprepare() in dai
shutdown().
+- system-clock-direction-out : specifies clock direction as 'out' on
+ initialization. It is useful for some aCPUs with
+ fixed clocks.
Example 1 - single DAI link:
diff --git a/Documentation/devicetree/bindings/sound/simple-scu-card.txt b/Documentation/devicetree/bindings/sound/simple-scu-card.txt
index d6fe47ed09af..32f8dbce5241 100644
--- a/Documentation/devicetree/bindings/sound/simple-scu-card.txt
+++ b/Documentation/devicetree/bindings/sound/simple-scu-card.txt
@@ -1,35 +1,30 @@
-ASoC simple SCU Sound Card
+ASoC Simple SCU Sound Card
-Simple-Card specifies audio DAI connections of SoC <-> codec.
+Simple SCU Sound Card is "Simple Sound Card" + "ALSA DPCM".
+For example, you can use this driver if you want to exchange sampling rate convert,
+Mixing, etc...
Required properties:
- compatible : "simple-scu-audio-card"
"renesas,rsrc-card"
-
Optional properties:
-- simple-audio-card,name : User specified audio sound card name, one string
- property.
-- simple-audio-card,cpu : CPU sub-node
-- simple-audio-card,codec : CODEC sub-node
+- simple-audio-card,name : see simple-audio-card.txt
+- simple-audio-card,cpu : see simple-audio-card.txt
+- simple-audio-card,codec : see simple-audio-card.txt
Optional subnode properties:
-- simple-audio-card,format : CPU/CODEC common audio format.
- "i2s", "right_j", "left_j" , "dsp_a"
- "dsp_b", "ac97", "pdm", "msb", "lsb"
-- simple-audio-card,frame-master : Indicates dai-link frame master.
- phandle to a cpu or codec subnode.
-- simple-audio-card,bitclock-master : Indicates dai-link bit clock master.
- phandle to a cpu or codec subnode.
-- simple-audio-card,bitclock-inversion : bool property. Add this if the
- dai-link uses bit clock inversion.
-- simple-audio-card,frame-inversion : bool property. Add this if the
- dai-link uses frame clock inversion.
+- simple-audio-card,format : see simple-audio-card.txt
+- simple-audio-card,frame-master : see simple-audio-card.txt
+- simple-audio-card,bitclock-master : see simple-audio-card.txt
+- simple-audio-card,bitclock-inversion : see simple-audio-card.txt
+- simple-audio-card,frame-inversion : see simple-audio-card.txt
- simple-audio-card,convert-rate : platform specified sampling rate convert
- simple-audio-card,convert-channels : platform specified converted channel size (2 - 8 ch)
-- simple-audio-card,prefix : see audio-routing
+- simple-audio-card,prefix : see routing
+- simple-audio-card,widgets : Please refer to widgets.txt.
- simple-audio-card,routing : A list of the connections between audio components.
Each entry is a pair of strings, the first being the connection's sink,
the second being the connection's source. Valid names for sources.
@@ -38,32 +33,23 @@ Optional subnode properties:
Required CPU/CODEC subnodes properties:
-- sound-dai : phandle and port of CPU/CODEC
+- sound-dai : see simple-audio-card.txt
Optional CPU/CODEC subnodes properties:
-- clocks / system-clock-frequency : specify subnode's clock if needed.
- it can be specified via "clocks" if system has
- clock node (= common clock), or "system-clock-frequency"
- (if system doens't support common clock)
- If a clock is specified, it is
- enabled with clk_prepare_enable()
- in dai startup() and disabled with
- clk_disable_unprepare() in dai
- shutdown().
+- clocks / system-clock-frequency : see simple-audio-card.txt
-Example 1. Sampling Rate Covert
+Example 1. Sampling Rate Conversion
sound {
compatible = "simple-scu-audio-card";
simple-audio-card,name = "rsnd-ak4643";
simple-audio-card,format = "left_j";
- simple-audio-card,format = "left_j";
simple-audio-card,bitclock-master = <&sndcodec>;
simple-audio-card,frame-master = <&sndcodec>;
- simple-audio-card,convert-rate = <48000>; /* see audio_clk_a */
+ simple-audio-card,convert-rate = <48000>;
simple-audio-card,prefix = "ak4642";
simple-audio-card,routing = "ak4642 Playback", "DAI0 Playback",
@@ -79,20 +65,18 @@ sound {
};
};
-Example 2. 2 CPU 1 Codec
+Example 2. 2 CPU 1 Codec (Mixing)
sound {
- compatible = "renesas,rsrc-card";
-
- card-name = "rsnd-ak4643";
- format = "left_j";
- bitclock-master = <&dpcmcpu>;
- frame-master = <&dpcmcpu>;
+ compatible = "simple-scu-audio-card";
- convert-rate = <48000>; /* see audio_clk_a */
+ simple-audio-card,name = "rsnd-ak4643";
+ simple-audio-card,format = "left_j";
+ simple-audio-card,bitclock-master = <&dpcmcpu>;
+ simple-audio-card,frame-master = <&dpcmcpu>;
- audio-prefix = "ak4642";
- audio-routing = "ak4642 Playback", "DAI0 Playback",
+ simple-audio-card,prefix = "ak4642";
+ simple-audio-card,routing = "ak4642 Playback", "DAI0 Playback",
"ak4642 Playback", "DAI1 Playback";
dpcmcpu: cpu@0 {
diff --git a/Documentation/devicetree/bindings/sound/st,sti-asoc-card.txt b/Documentation/devicetree/bindings/sound/st,sti-asoc-card.txt
index 745dc62f76ea..40068ec0e9a5 100644
--- a/Documentation/devicetree/bindings/sound/st,sti-asoc-card.txt
+++ b/Documentation/devicetree/bindings/sound/st,sti-asoc-card.txt
@@ -53,7 +53,6 @@ Example:
sti_uni_player1: sti-uni-player@0x8D81000 {
compatible = "st,stih407-uni-player-hdmi";
- status = "okay";
#sound-dai-cells = <0>;
st,syscfg = <&syscfg_core>;
clocks = <&clk_s_d0_flexgen CLK_PCM_1>;
@@ -66,7 +65,6 @@ Example:
sti_uni_player2: sti-uni-player@0x8D82000 {
compatible = "st,stih407-uni-player-pcm-out";
- status = "okay";
#sound-dai-cells = <0>;
st,syscfg = <&syscfg_core>;
clocks = <&clk_s_d0_flexgen CLK_PCM_2>;
@@ -78,7 +76,6 @@ Example:
sti_uni_player3: sti-uni-player@0x8D85000 {
compatible = "st,stih407-uni-player-spdif";
- status = "okay";
#sound-dai-cells = <0>;
st,syscfg = <&syscfg_core>;
clocks = <&clk_s_d0_flexgen CLK_SPDIFF>;
@@ -90,7 +87,6 @@ Example:
sti_uni_reader1: sti-uni-reader@0x8D84000 {
compatible = "st,stih407-uni-reader-hdmi";
- status = "disabled";
#sound-dai-cells = <0>;
st,syscfg = <&syscfg_core>;
reg = <0x8D84000 0x158>;
@@ -125,7 +121,6 @@ Example of audio card declaration:
sound {
compatible = "simple-audio-card";
simple-audio-card,name = "sti audio card";
- status = "okay";
simple-audio-card,dai-link@0 {
/* DAC */
diff --git a/Documentation/devicetree/bindings/sound/st,stm32-i2s.txt b/Documentation/devicetree/bindings/sound/st,stm32-i2s.txt
new file mode 100644
index 000000000000..4bda52042402
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/st,stm32-i2s.txt
@@ -0,0 +1,62 @@
+STMicroelectronics STM32 SPI/I2S Controller
+
+The SPI/I2S block supports I2S/PCM protocols when configured on I2S mode.
+Only some SPI instances support I2S.
+
+Required properties:
+ - compatible: Must be "st,stm32h7-i2s"
+ - reg: Offset and length of the device's register set.
+ - interrupts: Must contain the interrupt line id.
+ - clocks: Must contain phandle and clock specifier pairs for each entry
+ in clock-names.
+ - clock-names: Must contain "i2sclk", "pclk", "x8k" and "x11k".
+ "i2sclk": clock which feeds the internal clock generator
+ "pclk": clock which feeds the peripheral bus interface
+ "x8k": I2S parent clock for sampling rates multiple of 8kHz.
+ "x11k": I2S parent clock for sampling rates multiple of 11.025kHz.
+ - dmas: DMA specifiers for tx and rx dma.
+ See Documentation/devicetree/bindings/dma/stm32-dma.txt.
+ - dma-names: Identifier for each DMA request line. Must be "tx" and "rx".
+ - pinctrl-names: should contain only value "default"
+ - pinctrl-0: see Documentation/devicetree/bindings/pinctrl/pinctrl-stm32.txt
+
+Optional properties:
+ - resets: Reference to a reset controller asserting the reset controller
+
+The device node should contain one 'port' child node with one child 'endpoint'
+node, according to the bindings defined in Documentation/devicetree/bindings/
+graph.txt.
+
+Example:
+sound_card {
+ compatible = "audio-graph-card";
+ dais = <&i2s2_port>;
+};
+
+i2s2: audio-controller@40003800 {
+ compatible = "st,stm32h7-i2s";
+ reg = <0x40003800 0x400>;
+ interrupts = <36>;
+ clocks = <&rcc PCLK1>, <&rcc SPI2_CK>, <&rcc PLL1_Q>, <&rcc PLL2_P>;
+ clock-names = "pclk", "i2sclk", "x8k", "x11k";
+ dmas = <&dmamux2 2 39 0x400 0x1>,
+ <&dmamux2 3 40 0x400 0x1>;
+ dma-names = "rx", "tx";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2s2>;
+
+ i2s2_port: port@0 {
+ cpu_endpoint: endpoint {
+ remote-endpoint = <&codec_endpoint>;
+ format = "i2s";
+ };
+ };
+};
+
+audio-codec {
+ codec_port: port@0 {
+ codec_endpoint: endpoint {
+ remote-endpoint = <&cpu_endpoint>;
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/sound/st,stm32-sai.txt b/Documentation/devicetree/bindings/sound/st,stm32-sai.txt
index c59a3d779e06..f1c5ae59e7c9 100644
--- a/Documentation/devicetree/bindings/sound/st,stm32-sai.txt
+++ b/Documentation/devicetree/bindings/sound/st,stm32-sai.txt
@@ -6,7 +6,7 @@ The SAI contains two independent audio sub-blocks. Each sub-block has
its own clock generator and I/O lines controller.
Required properties:
- - compatible: Should be "st,stm32f4-sai"
+ - compatible: Should be "st,stm32f4-sai" or "st,stm32h7-sai"
- reg: Base address and size of SAI common register set.
- clocks: Must contain phandle and clock specifier pairs for each entry
in clock-names.
@@ -36,6 +36,10 @@ SAI subnodes required properties:
- pinctrl-names: should contain only value "default"
- pinctrl-0: see Documentation/devicetree/bindings/pinctrl/pinctrl-stm32.txt
+The device node should contain one 'port' child node with one child 'endpoint'
+node, according to the bindings defined in Documentation/devicetree/bindings/
+graph.txt.
+
Example:
sound_card {
compatible = "audio-graph-card";
@@ -43,38 +47,29 @@ sound_card {
};
sai1: sai1@40015800 {
- compatible = "st,stm32f4-sai";
+ compatible = "st,stm32h7-sai";
#address-cells = <1>;
#size-cells = <1>;
- ranges;
+ ranges = <0 0x40015800 0x400>;
reg = <0x40015800 0x4>;
- clocks = <&rcc 1 CLK_SAIQ_PDIV>, <&rcc 1 CLK_I2SQ_PDIV>;
+ clocks = <&rcc PLL1_Q>, <&rcc PLL2_P>;
clock-names = "x8k", "x11k";
interrupts = <87>;
- sai1b: audio-controller@40015824 {
- #sound-dai-cells = <0>;
- compatible = "st,stm32-sai-sub-b";
- reg = <0x40015824 0x1C>;
- clocks = <&rcc 1 CLK_SAI2>;
+ sai1a: audio-controller@40015804 {
+ compatible = "st,stm32-sai-sub-a";
+ reg = <0x4 0x1C>;
+ clocks = <&rcc SAI1_CK>;
clock-names = "sai_ck";
- dmas = <&dma2 5 0 0x400 0x0>;
+ dmas = <&dmamux1 1 87 0x400 0x0>;
dma-names = "tx";
pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_sai1b>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
+ pinctrl-0 = <&pinctrl_sai1a>;
- sai1b_port: port@0 {
- reg = <0>;
- cpu_endpoint: endpoint {
- remote-endpoint = <&codec_endpoint>;
- audio-graph-card,format = "i2s";
- audio-graph-card,bitclock-master = <&codec_endpoint>;
- audio-graph-card,frame-master = <&codec_endpoint>;
- };
+ sai1b_port: port {
+ cpu_endpoint: endpoint {
+ remote-endpoint = <&codec_endpoint>;
+ format = "i2s";
};
};
};
diff --git a/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt b/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt
new file mode 100644
index 000000000000..33826f2459fa
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt
@@ -0,0 +1,56 @@
+STMicroelectronics STM32 S/PDIF receiver (SPDIFRX).
+
+The SPDIFRX peripheral, is designed to receive an S/PDIF flow compliant with
+IEC-60958 and IEC-61937.
+
+Required properties:
+ - compatible: should be "st,stm32h7-spdifrx"
+ - reg: cpu DAI IP base address and size
+ - clocks: must contain an entry for kclk (used as S/PDIF signal reference)
+ - clock-names: must contain "kclk"
+ - interrupts: cpu DAI interrupt line
+ - dmas: DMA specifiers for audio data DMA and iec control flow DMA
+ See STM32 DMA bindings, Documentation/devicetree/bindings/dma/stm32-dma.txt
+ - dma-names: two dmas have to be defined, "rx" and "rx-ctrl"
+
+Optional properties:
+ - resets: Reference to a reset controller asserting the SPDIFRX
+
+The device node should contain one 'port' child node with one child 'endpoint'
+node, according to the bindings defined in Documentation/devicetree/bindings/
+graph.txt.
+
+Example:
+spdifrx: spdifrx@40004000 {
+ compatible = "st,stm32h7-spdifrx";
+ reg = <0x40004000 0x400>;
+ clocks = <&rcc SPDIFRX_CK>;
+ clock-names = "kclk";
+ interrupts = <97>;
+ dmas = <&dmamux1 2 93 0x400 0x0>,
+ <&dmamux1 3 94 0x400 0x0>;
+ dma-names = "rx", "rx-ctrl";
+ pinctrl-0 = <&spdifrx_pins>;
+ pinctrl-names = "default";
+
+ spdifrx_port: port {
+ cpu_endpoint: endpoint {
+ remote-endpoint = <&codec_endpoint>;
+ };
+ };
+};
+
+spdif_in: spdif-in {
+ compatible = "linux,spdif-dir";
+
+ codec_port: port {
+ codec_endpoint: endpoint {
+ remote-endpoint = <&cpu_endpoint>;
+ };
+ };
+};
+
+soundcard {
+ compatible = "audio-graph-card";
+ dais = <&spdifrx_port>;
+};
diff --git a/Documentation/devicetree/bindings/sound/sun4i-codec.txt b/Documentation/devicetree/bindings/sound/sun4i-codec.txt
index 3863531d1e6d..2d4e10deb6f4 100644
--- a/Documentation/devicetree/bindings/sound/sun4i-codec.txt
+++ b/Documentation/devicetree/bindings/sound/sun4i-codec.txt
@@ -7,6 +7,7 @@ Required properties:
- "allwinner,sun7i-a20-codec"
- "allwinner,sun8i-a23-codec"
- "allwinner,sun8i-h3-codec"
+ - "allwinner,sun8i-v3s-codec"
- reg: must contain the registers location and length
- interrupts: must contain the codec interrupt
- dmas: DMA channels for tx and rx dma. See the DMA client binding,
@@ -25,6 +26,7 @@ Required properties for the following compatibles:
- "allwinner,sun6i-a31-codec"
- "allwinner,sun8i-a23-codec"
- "allwinner,sun8i-h3-codec"
+ - "allwinner,sun8i-v3s-codec"
- resets: phandle to the reset control for this device
- allwinner,audio-routing: A list of the connections between audio components.
Each entry is a pair of strings, the first being the
@@ -34,15 +36,15 @@ Required properties for the following compatibles:
Audio pins on the SoC:
"HP"
"HPCOM"
- "LINEIN"
- "LINEOUT" (not on sun8i-a23)
+ "LINEIN" (not on sun8i-v3s)
+ "LINEOUT" (not on sun8i-a23 or sun8i-v3s)
"MIC1"
- "MIC2"
+ "MIC2" (not on sun8i-v3s)
"MIC3" (sun6i-a31 only)
Microphone biases from the SoC:
"HBIAS"
- "MBIAS"
+ "MBIAS" (not on sun8i-v3s)
Board connectors:
"Headphone"
@@ -55,6 +57,7 @@ Required properties for the following compatibles:
Required properties for the following compatibles:
- "allwinner,sun8i-a23-codec"
- "allwinner,sun8i-h3-codec"
+ - "allwinner,sun8i-v3s-codec"
- allwinner,codec-analog-controls: A phandle to the codec analog controls
block in the PRCM.
diff --git a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt
index ee21da865771..fc5da6080759 100644
--- a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt
+++ b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt
@@ -8,6 +8,7 @@ Required properties:
- compatible: should be one of the following:
- "allwinner,sun4i-a10-i2s"
- "allwinner,sun6i-a31-i2s"
+ - "allwinner,sun8i-h3-i2s"
- reg: physical base address of the controller and length of memory mapped
region.
- interrupts: should contain the I2S interrupt.
@@ -22,6 +23,7 @@ Required properties:
Required properties for the following compatibles:
- "allwinner,sun6i-a31-i2s"
+ - "allwinner,sun8i-h3-i2s"
- resets: phandle to the reset line for this codec
Example:
diff --git a/Documentation/devicetree/bindings/sound/sun8i-codec-analog.txt b/Documentation/devicetree/bindings/sound/sun8i-codec-analog.txt
index 779b735781ba..1b6e7c4e50ab 100644
--- a/Documentation/devicetree/bindings/sound/sun8i-codec-analog.txt
+++ b/Documentation/devicetree/bindings/sound/sun8i-codec-analog.txt
@@ -4,6 +4,7 @@ Required properties:
- compatible: must be one of the following compatibles:
- "allwinner,sun8i-a23-codec-analog"
- "allwinner,sun8i-h3-codec-analog"
+ - "allwinner,sun8i-v3s-codec-analog"
Required properties if not a sub-node of the PRCM node:
- reg: must contain the registers location and length
diff --git a/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt b/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt
index fe0a65e6d629..70ee177901d3 100644
--- a/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt
+++ b/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt
@@ -39,5 +39,4 @@ spdif: spdif@01c21000 {
clock-names = "apb", "spdif";
dmas = <&dma 0 2>, <&dma 0 2>;
dma-names = "rx", "tx";
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/sound/tas5720.txt b/Documentation/devicetree/bindings/sound/tas5720.txt
index 806ea7381483..40d94f82beb3 100644
--- a/Documentation/devicetree/bindings/sound/tas5720.txt
+++ b/Documentation/devicetree/bindings/sound/tas5720.txt
@@ -17,7 +17,6 @@ Required properties:
Example:
tas5720: tas5720@6c {
- status = "okay";
compatible = "ti,tas5720";
reg = <0x6c>;
dvdd-supply = <&vdd_3v3_reg>;
diff --git a/Documentation/devicetree/bindings/sound/tlv320aic32x4.txt b/Documentation/devicetree/bindings/sound/tlv320aic32x4.txt
index 5e2741af27be..ca75890f0d07 100644
--- a/Documentation/devicetree/bindings/sound/tlv320aic32x4.txt
+++ b/Documentation/devicetree/bindings/sound/tlv320aic32x4.txt
@@ -3,7 +3,9 @@ Texas Instruments - tlv320aic32x4 Codec module
The tlv320aic32x4 serial control bus communicates through I2C protocols
Required properties:
- - compatible: Should be "ti,tlv320aic32x4"
+ - compatible - "string" - One of:
+ "ti,tlv320aic32x4" TLV320AIC3204
+ "ti,tlv320aic32x6" TLV320AIC3206, TLV320AIC3256
- reg: I2C slave address
- supply-*: Required supply regulators are:
"iov" - digital IO power supply
@@ -18,6 +20,8 @@ Optional properties:
- reset-gpios: Reset-GPIO phandle with args as described in gpio/gpio.txt
- clocks/clock-names: Clock named 'mclk' for the master clock of the codec.
See clock/clock-bindings.txt for information about the detailed format.
+ - aic32x4-gpio-func - <array of 5 int>
+ - Types are defined in include/sound/tlv320aic32x4.h
Example:
@@ -27,4 +31,11 @@ codec: tlv320aic32x4@18 {
reg = <0x18>;
clocks = <&clks 201>;
clock-names = "mclk";
+ aic32x4-gpio-func= <
+ 0xff /* AIC32X4_MFPX_DEFAULT_VALUE */
+ 0xff /* AIC32X4_MFPX_DEFAULT_VALUE */
+ 0x04 /* MFP3 AIC32X4_MFP3_GPIO_ENABLED */
+ 0xff /* AIC32X4_MFPX_DEFAULT_VALUE */
+ 0x08 /* MFP5 AIC32X4_MFP5_GPIO_INPUT */
+ >;
};
diff --git a/Documentation/devicetree/bindings/sound/tlv320aic3x.txt b/Documentation/devicetree/bindings/sound/tlv320aic3x.txt
index 47a213c411ce..ba5b45c483f5 100644
--- a/Documentation/devicetree/bindings/sound/tlv320aic3x.txt
+++ b/Documentation/devicetree/bindings/sound/tlv320aic3x.txt
@@ -26,6 +26,11 @@ Optional properties:
3 - MICBIAS output is connected to AVDD,
If this node is not mentioned or if the value is incorrect, then MicBias
is powered down.
+- ai3x-ocmv - Output Common-Mode Voltage selection:
+ 0 - 1.35V,
+ 1 - 1.5V,
+ 2 - 1.65V,
+ 3 - 1.8V
- AVDD-supply, IOVDD-supply, DRVDD-supply, DVDD-supply : power supplies for the
device as covered in Documentation/devicetree/bindings/regulator/regulator.txt
diff --git a/Documentation/devicetree/bindings/sound/wm8524.txt b/Documentation/devicetree/bindings/sound/wm8524.txt
new file mode 100644
index 000000000000..20c62002cbcd
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/wm8524.txt
@@ -0,0 +1,16 @@
+WM8524 audio CODEC
+
+This device does not use I2C or SPI but a simple Hardware Control Interface.
+
+Required properties:
+
+ - compatible : "wlf,wm8524"
+
+ - wlf,mute-gpios: a GPIO spec for the MUTE pin.
+
+Example:
+
+codec: wm8524@0 {
+ compatible = "wlf,wm8524";
+ wlf,mute-gpios = <&gpio1 8 GPIO_ACTIVE_LOW>;
+};
diff --git a/Documentation/devicetree/bindings/sound/zte,zx-aud96p22.txt b/Documentation/devicetree/bindings/sound/zte,zx-aud96p22.txt
new file mode 100644
index 000000000000..41bb1040eb71
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/zte,zx-aud96p22.txt
@@ -0,0 +1,24 @@
+ZTE ZX AUD96P22 Audio Codec
+
+Required properties:
+ - compatible: Must be "zte,zx-aud96p22"
+ - #sound-dai-cells: Should be 0
+ - reg: I2C bus slave address of AUD96P22
+
+Example:
+
+ i2c0: i2c@1486000 {
+ compatible = "zte,zx296718-i2c";
+ reg = <0x01486000 0x1000>;
+ interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&audiocrm AUDIO_I2C0_WCLK>;
+ clock-frequency = <1600000>;
+
+ aud96p22: codec@22 {
+ compatible = "zte,zx-aud96p22";
+ #sound-dai-cells = <0>;
+ reg = <0x22>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/sound/zte,zx-i2s.txt b/Documentation/devicetree/bindings/sound/zte,zx-i2s.txt
index 292ad5083704..3927251464f0 100644
--- a/Documentation/devicetree/bindings/sound/zte,zx-i2s.txt
+++ b/Documentation/devicetree/bindings/sound/zte,zx-i2s.txt
@@ -27,7 +27,6 @@ Example:
interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&dma 5>, <&dma 6>;
dma-names = "tx", "rx";
- status = "okay";
};
sound {
diff --git a/Documentation/devicetree/bindings/sound/zte,zx-spdif.txt b/Documentation/devicetree/bindings/sound/zte,zx-spdif.txt
index 989544ea6eb5..b5a5ca4502f9 100644
--- a/Documentation/devicetree/bindings/sound/zte,zx-spdif.txt
+++ b/Documentation/devicetree/bindings/sound/zte,zx-spdif.txt
@@ -24,5 +24,4 @@ Example:
interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&dma 4>;
dma-names = "tx";
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/spi/efm32-spi.txt b/Documentation/devicetree/bindings/spi/efm32-spi.txt
index 750e29aff9bc..2c1e6a43930b 100644
--- a/Documentation/devicetree/bindings/spi/efm32-spi.txt
+++ b/Documentation/devicetree/bindings/spi/efm32-spi.txt
@@ -28,7 +28,6 @@ spi1: spi@0x4000c400 { /* USART1 */
clocks = <&cmu 20>;
cs-gpios = <&gpio 51 1>; // D3
energymicro,location = <1>;
- status = "ok";
ks8851@0 {
compatible = "ks8851";
@@ -36,6 +35,5 @@ spi1: spi@0x4000c400 { /* USART1 */
reg = <0>;
interrupt-parent = <&boardfpga>;
interrupts = <4>;
- status = "ok";
};
};
diff --git a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
index 31b5b21598ff..5bf13960f7f4 100644
--- a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
+++ b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
@@ -9,6 +9,7 @@ Required properties:
- "fsl,imx31-cspi" for SPI compatible with the one integrated on i.MX31
- "fsl,imx35-cspi" for SPI compatible with the one integrated on i.MX35
- "fsl,imx51-ecspi" for SPI compatible with the one integrated on i.MX51
+ - "fsl,imx53-ecspi" for SPI compatible with the one integrated on i.MX53 and later Soc
- reg : Offset and length of the register set for the device
- interrupts : Should contain CSPI/eCSPI interrupt
- cs-gpios : Specifies the gpio pins to be used for chipselects.
diff --git a/Documentation/devicetree/bindings/spi/nvidia,tegra114-spi.txt b/Documentation/devicetree/bindings/spi/nvidia,tegra114-spi.txt
index b785976fe98a..9ba7c5a273b4 100644
--- a/Documentation/devicetree/bindings/spi/nvidia,tegra114-spi.txt
+++ b/Documentation/devicetree/bindings/spi/nvidia,tegra114-spi.txt
@@ -38,5 +38,4 @@ spi@7000d600 {
reset-names = "spi";
dmas = <&apbdma 16>, <&apbdma 16>;
dma-names = "rx", "tx";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/spi/nvidia,tegra20-sflash.txt b/Documentation/devicetree/bindings/spi/nvidia,tegra20-sflash.txt
index bdf08e6dec9b..c212491929b5 100644
--- a/Documentation/devicetree/bindings/spi/nvidia,tegra20-sflash.txt
+++ b/Documentation/devicetree/bindings/spi/nvidia,tegra20-sflash.txt
@@ -34,5 +34,4 @@ spi@7000c380 {
reset-names = "spi";
dmas = <&apbdma 11>, <&apbdma 11>;
dma-names = "rx", "tx";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/spi/nvidia,tegra20-slink.txt b/Documentation/devicetree/bindings/spi/nvidia,tegra20-slink.txt
index 5db9144a33c8..40d80b93e327 100644
--- a/Documentation/devicetree/bindings/spi/nvidia,tegra20-slink.txt
+++ b/Documentation/devicetree/bindings/spi/nvidia,tegra20-slink.txt
@@ -34,5 +34,4 @@ spi@7000d600 {
reset-names = "spi";
dmas = <&apbdma 16>, <&apbdma 16>;
dma-names = "rx", "tx";
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/spi/sh-hspi.txt b/Documentation/devicetree/bindings/spi/sh-hspi.txt
index 319bad4af875..585fed90376e 100644
--- a/Documentation/devicetree/bindings/spi/sh-hspi.txt
+++ b/Documentation/devicetree/bindings/spi/sh-hspi.txt
@@ -24,6 +24,5 @@ Example:
interrupts = <0 63 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/spi/sh-msiof.txt b/Documentation/devicetree/bindings/spi/sh-msiof.txt
index dc975064fa27..e865855726a2 100644
--- a/Documentation/devicetree/bindings/spi/sh-msiof.txt
+++ b/Documentation/devicetree/bindings/spi/sh-msiof.txt
@@ -6,6 +6,7 @@ Required properties:
"renesas,msiof-r8a7792" (R-Car V2H)
"renesas,msiof-r8a7793" (R-Car M2-N)
"renesas,msiof-r8a7794" (R-Car E2)
+ "renesas,msiof-r8a7795" (R-Car H3)
"renesas,msiof-r8a7796" (R-Car M3-W)
"renesas,msiof-sh73a0" (SH-Mobile AG5)
"renesas,sh-mobile-msiof" (generic SH-Mobile compatibile device)
@@ -38,6 +39,8 @@ Optional properties:
specifiers, one for transmission, and one for
reception.
- dma-names : Must contain a list of two DMA names, "tx" and "rx".
+- spi-slave : Empty property indicating the SPI controller is used
+ in slave mode.
- renesas,dtdl : delay sync signal (setup) in transmit mode.
Must contain one of the following values:
0 (no bit delay)
@@ -76,5 +79,4 @@ Example:
dma-names = "tx", "rx";
#address-cells = <1>;
#size-cells = <0>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/spi/spi-bus.txt b/Documentation/devicetree/bindings/spi/spi-bus.txt
index 4b1d6e74c744..1f6e86f787ef 100644
--- a/Documentation/devicetree/bindings/spi/spi-bus.txt
+++ b/Documentation/devicetree/bindings/spi/spi-bus.txt
@@ -1,17 +1,23 @@
SPI (Serial Peripheral Interface) busses
-SPI busses can be described with a node for the SPI master device
-and a set of child nodes for each SPI slave on the bus. For this
-discussion, it is assumed that the system's SPI controller is in
-SPI master mode. This binding does not describe SPI controllers
-in slave mode.
+SPI busses can be described with a node for the SPI controller device
+and a set of child nodes for each SPI slave on the bus. The system's SPI
+controller may be described for use in SPI master mode or in SPI slave mode,
+but not for both at the same time.
-The SPI master node requires the following properties:
+The SPI controller node requires the following properties:
+- compatible - Name of SPI bus controller following generic names
+ recommended practice.
+
+In master mode, the SPI controller node requires the following additional
+properties:
- #address-cells - number of cells required to define a chip select
address on the SPI bus.
- #size-cells - should be zero.
-- compatible - name of SPI bus controller following generic names
- recommended practice.
+
+In slave mode, the SPI controller node requires one additional property:
+- spi-slave - Empty property.
+
No other properties are required in the SPI bus node. It is assumed
that a driver for an SPI bus device will understand that it is an SPI bus.
However, the binding does not attempt to define the specific method for
@@ -21,7 +27,7 @@ assumption that board specific platform code will be used to manage
chip selects. Individual drivers can define additional properties to
support describing the chip select layout.
-Optional properties:
+Optional properties (master mode only):
- cs-gpios - gpios chip select.
- num-cs - total number of chipselects.
@@ -41,28 +47,36 @@ cs1 : native
cs2 : &gpio1 1 0
cs3 : &gpio1 2 0
-SPI slave nodes must be children of the SPI master node and can
-contain the following properties.
-- reg - (required) chip select address of device.
-- compatible - (required) name of SPI device following generic names
- recommended practice.
-- spi-max-frequency - (required) Maximum SPI clocking speed of device in Hz.
-- spi-cpol - (optional) Empty property indicating device requires
- inverse clock polarity (CPOL) mode.
-- spi-cpha - (optional) Empty property indicating device requires
- shifted clock phase (CPHA) mode.
-- spi-cs-high - (optional) Empty property indicating device requires
- chip select active high.
-- spi-3wire - (optional) Empty property indicating device requires
- 3-wire mode.
-- spi-lsb-first - (optional) Empty property indicating device requires
- LSB first mode.
-- spi-tx-bus-width - (optional) The bus width (number of data wires) that is
- used for MOSI. Defaults to 1 if not present.
-- spi-rx-bus-width - (optional) The bus width (number of data wires) that is
- used for MISO. Defaults to 1 if not present.
-- spi-rx-delay-us - (optional) Microsecond delay after a read transfer.
-- spi-tx-delay-us - (optional) Microsecond delay after a write transfer.
+
+SPI slave nodes must be children of the SPI controller node.
+
+In master mode, one or more slave nodes (up to the number of chip selects) can
+be present. Required properties are:
+- compatible - Name of SPI device following generic names recommended
+ practice.
+- reg - Chip select address of device.
+- spi-max-frequency - Maximum SPI clocking speed of device in Hz.
+
+In slave mode, the (single) slave node is optional.
+If present, it must be called "slave". Required properties are:
+- compatible - Name of SPI device following generic names recommended
+ practice.
+
+All slave nodes can contain the following optional properties:
+- spi-cpol - Empty property indicating device requires inverse clock
+ polarity (CPOL) mode.
+- spi-cpha - Empty property indicating device requires shifted clock
+ phase (CPHA) mode.
+- spi-cs-high - Empty property indicating device requires chip select
+ active high.
+- spi-3wire - Empty property indicating device requires 3-wire mode.
+- spi-lsb-first - Empty property indicating device requires LSB first mode.
+- spi-tx-bus-width - The bus width (number of data wires) that is used for MOSI.
+ Defaults to 1 if not present.
+- spi-rx-bus-width - The bus width (number of data wires) that is used for MISO.
+ Defaults to 1 if not present.
+- spi-rx-delay-us - Microsecond delay after a read transfer.
+- spi-tx-delay-us - Microsecond delay after a write transfer.
Some SPI controllers and devices support Dual and Quad SPI transfer mode.
It allows data in the SPI system to be transferred using 2 wires (DUAL) or 4
diff --git a/Documentation/devicetree/bindings/spi/spi-clps711x.txt b/Documentation/devicetree/bindings/spi/spi-clps711x.txt
index 4c3ec13f423f..5122dc7860af 100644
--- a/Documentation/devicetree/bindings/spi/spi-clps711x.txt
+++ b/Documentation/devicetree/bindings/spi/spi-clps711x.txt
@@ -23,7 +23,6 @@ spi@80000500 {
reg = <0x80000500 0x4>;
interrupts = <15>;
clocks = <&clks CLPS711X_CLK_SPI>;
- status = "disabled";
};
syscon3: syscon@80002200 {
diff --git a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt b/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt
index ff5893d275a2..13b1fcc8469e 100644
--- a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt
+++ b/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt
@@ -39,7 +39,6 @@ dspi0@4002c000 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_dspi0_1>;
big-endian;
- status = "okay";
sflash: at26df081a@0 {
#address-cells = <1>;
diff --git a/Documentation/devicetree/bindings/spi/spi-meson.txt b/Documentation/devicetree/bindings/spi/spi-meson.txt
index dc6d0313324a..825c39cae74a 100644
--- a/Documentation/devicetree/bindings/spi/spi-meson.txt
+++ b/Documentation/devicetree/bindings/spi/spi-meson.txt
@@ -20,3 +20,34 @@ Required properties:
#address-cells = <1>;
#size-cells = <0>;
};
+
+* SPICC (SPI Communication Controller)
+
+The Meson SPICC is generic SPI controller for general purpose Full-Duplex
+communications with dedicated 16 words RX/TX PIO FIFOs.
+
+Required properties:
+ - compatible: should be "amlogic,meson-gx-spicc" on Amlogic GX SoCs.
+ - reg: physical base address and length of the controller registers
+ - interrupts: The interrupt specifier
+ - clock-names: Must contain "core"
+ - clocks: phandle of the input clock for the baud rate generator
+ - #address-cells: should be 1
+ - #size-cells: should be 0
+
+Optional properties:
+ - resets: phandle of the internal reset line
+
+See ../spi/spi-bus.txt for more details on SPI bus master and slave devices
+required and optional properties.
+
+Example :
+ spi@c1108d80 {
+ compatible = "amlogic,meson-gx-spicc";
+ reg = <0xc1108d80 0x80>;
+ interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
+ clock-names = "core";
+ clocks = <&clk81>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
diff --git a/Documentation/devicetree/bindings/spi/spi-mt65xx.txt b/Documentation/devicetree/bindings/spi/spi-mt65xx.txt
index e43f4cf4cf35..236dcb0faf37 100644
--- a/Documentation/devicetree/bindings/spi/spi-mt65xx.txt
+++ b/Documentation/devicetree/bindings/spi/spi-mt65xx.txt
@@ -3,7 +3,9 @@ Binding for MTK SPI controller
Required properties:
- compatible: should be one of the following.
- mediatek,mt2701-spi: for mt2701 platforms
+ - mediatek,mt2712-spi: for mt2712 platforms
- mediatek,mt6589-spi: for mt6589 platforms
+ - mediatek,mt7622-spi: for mt7622 platforms
- mediatek,mt8135-spi: for mt8135 platforms
- mediatek,mt8173-spi: for mt8173 platforms
@@ -55,5 +57,4 @@ spi: spi@1100a000 {
clock-names = "parent-clk", "sel-clk", "spi-clk";
cs-gpios = <&pio 105 GPIO_ACTIVE_LOW>, <&pio 72 GPIO_ACTIVE_LOW>;
mediatek,pad-select = <1>, <0>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/spi/spi-orion.txt b/Documentation/devicetree/bindings/spi/spi-orion.txt
index 4f629cc7634a..df8ec31f2f07 100644
--- a/Documentation/devicetree/bindings/spi/spi-orion.txt
+++ b/Documentation/devicetree/bindings/spi/spi-orion.txt
@@ -29,7 +29,6 @@ Example:
cell-index = <0>;
reg = <0x10600 0x28>;
interrupts = <23>;
- status = "disabled";
};
Example with SPI direct mode support (optionally):
@@ -48,7 +47,6 @@ Example with SPI direct mode support (optionally):
<MBUS_ID(0x01, 0x9f) 0 0xffffffff>, /* CS6 */
<MBUS_ID(0x01, 0xdf) 0 0xffffffff>; /* CS7 */
interrupts = <23>;
- status = "disabled";
};
To enable the direct mode, the board specific 'ranges' property in the
diff --git a/Documentation/devicetree/bindings/spi/spi-rockchip.txt b/Documentation/devicetree/bindings/spi/spi-rockchip.txt
index 83da4931d832..6e3ffacbba32 100644
--- a/Documentation/devicetree/bindings/spi/spi-rockchip.txt
+++ b/Documentation/devicetree/bindings/spi/spi-rockchip.txt
@@ -6,6 +6,7 @@ and display controllers using the SPI communication interface.
Required Properties:
- compatible: should be one of the following.
+ "rockchip,rv1108-spi" for rv1108 SoCs.
"rockchip,rk3036-spi" for rk3036 SoCS.
"rockchip,rk3066-spi" for rk3066 SoCs.
"rockchip,rk3188-spi" for rk3188 SoCs.
diff --git a/Documentation/devicetree/bindings/spi/spi-stm32.txt b/Documentation/devicetree/bindings/spi/spi-stm32.txt
new file mode 100644
index 000000000000..1b3fa2c119d5
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/spi-stm32.txt
@@ -0,0 +1,59 @@
+STMicroelectronics STM32 SPI Controller
+
+The STM32 SPI controller is used to communicate with external devices using
+the Serial Peripheral Interface. It supports full-duplex, half-duplex and
+simplex synchronous serial communication with external devices. It supports
+from 4 to 32-bit data size. Although it can be configured as master or slave,
+only master is supported by the driver.
+
+Required properties:
+- compatible: Must be "st,stm32h7-spi".
+- reg: Offset and length of the device's register set.
+- interrupts: Must contain the interrupt id.
+- clocks: Must contain an entry for spiclk (which feeds the internal clock
+ generator).
+- #address-cells: Number of cells required to define a chip select address.
+- #size-cells: Should be zero.
+
+Optional properties:
+- resets: Must contain the phandle to the reset controller.
+- A pinctrl state named "default" may be defined to set pins in mode of
+ operation for SPI transfer.
+- dmas: DMA specifiers for tx and rx dma. DMA fifo mode must be used. See the
+ STM32 DMA bindings, Documentation/devicetree/bindings/dma/stm32-dma.txt.
+- dma-names: DMA request names should include "tx" and "rx" if present.
+- cs-gpios: list of GPIO chip selects. See the SPI bus bindings,
+ Documentation/devicetree/bindings/spi/spi-bus.txt
+
+
+Child nodes represent devices on the SPI bus
+ See ../spi/spi-bus.txt
+
+Optional properties:
+- st,spi-midi-ns: (Master Inter-Data Idleness) minimum time delay in
+ nanoseconds inserted between two consecutive data frames.
+
+
+Example:
+ spi2: spi@40003800 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "st,stm32h7-spi";
+ reg = <0x40003800 0x400>;
+ interrupts = <36>;
+ clocks = <&rcc SPI2_CK>;
+ resets = <&rcc 1166>;
+ dmas = <&dmamux1 0 39 0x400 0x01>,
+ <&dmamux1 1 40 0x400 0x01>;
+ dma-names = "rx", "tx";
+ pinctrl-0 = <&spi2_pins_b>;
+ pinctrl-names = "default";
+ cs-gpios = <&gpioa 11 0>;
+
+ aardvark@0 {
+ compatible = "totalphase,aardvark";
+ reg = <0>;
+ spi-max-frequency = <4000000>;
+ st,spi-midi-ns = <4000>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/spi/spi-sun4i.txt b/Documentation/devicetree/bindings/spi/spi-sun4i.txt
index de827f5a301e..484bbff5337e 100644
--- a/Documentation/devicetree/bindings/spi/spi-sun4i.txt
+++ b/Documentation/devicetree/bindings/spi/spi-sun4i.txt
@@ -18,7 +18,6 @@ spi1: spi@01c06000 {
interrupts = <11>;
clocks = <&ahb_gates 21>, <&spi1_clk>;
clock-names = "ahb", "mod";
- status = "disabled";
#address-cells = <1>;
#size-cells = <0>;
};
diff --git a/Documentation/devicetree/bindings/spi/spi-sun6i.txt b/Documentation/devicetree/bindings/spi/spi-sun6i.txt
index 2ec99b86b622..ab1811354cce 100644
--- a/Documentation/devicetree/bindings/spi/spi-sun6i.txt
+++ b/Documentation/devicetree/bindings/spi/spi-sun6i.txt
@@ -39,7 +39,6 @@ spi0: spi@01c68000 {
pinctrl-names = "default";
pinctrl-0 = <&spi0_pins>;
resets = <&ccu RST_BUS_SPI0>;
- status = "disabled";
#address-cells = <1>;
#size-cells = <0>;
};
diff --git a/Documentation/devicetree/bindings/spi/spi_atmel.txt b/Documentation/devicetree/bindings/spi/spi_atmel.txt
index fb588b3e6a9a..f99c733d75c1 100644
--- a/Documentation/devicetree/bindings/spi/spi_atmel.txt
+++ b/Documentation/devicetree/bindings/spi/spi_atmel.txt
@@ -26,7 +26,6 @@ spi1: spi@fffcc000 {
clock-names = "spi_clk";
cs-gpios = <&pioB 3 0>;
atmel,fifo-size = <32>;
- status = "okay";
mmc-slot@0 {
compatible = "mmc-spi-slot";
diff --git a/Documentation/devicetree/bindings/sram/renesas,smp-sram.txt b/Documentation/devicetree/bindings/sram/renesas,smp-sram.txt
new file mode 100644
index 000000000000..712d05e3e15e
--- /dev/null
+++ b/Documentation/devicetree/bindings/sram/renesas,smp-sram.txt
@@ -0,0 +1,27 @@
+* Renesas SMP SRAM
+
+Renesas R-Car Gen2 and RZ/G1 SoCs need a small piece of SRAM for the jump stub
+for secondary CPU bringup and CPU hotplug.
+This memory is reserved by adding a child node to a "mmio-sram" node, cfr.
+Documentation/devicetree/bindings/sram/sram.txt.
+
+Required child node properties:
+ - compatible: Must be "renesas,smp-sram",
+ - reg: Address and length of the reserved SRAM.
+ The full physical (bus) address must be aligned to a 256 KiB boundary.
+
+
+Example:
+
+ icram1: sram@e63c0000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe63c0000 0 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0 0xe63c0000 0x1000>;
+
+ smp-sram@0 {
+ compatible = "renesas,smp-sram";
+ reg = <0 0x10>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/sram/sunxi-sram.txt b/Documentation/devicetree/bindings/sram/sunxi-sram.txt
index 8d5665468fe7..6bb92a1df753 100644
--- a/Documentation/devicetree/bindings/sram/sunxi-sram.txt
+++ b/Documentation/devicetree/bindings/sram/sunxi-sram.txt
@@ -9,7 +9,9 @@ Controller Node
---------------
Required properties:
-- compatible : "allwinner,sun4i-a10-sram-controller"
+- compatible : should be:
+ - "allwinner,sun4i-a10-sram-controller"
+ - "allwinner,sun50i-a64-sram-controller"
- reg : sram controller register offset + length
SRAM nodes
@@ -22,10 +24,13 @@ Each SRAM will have SRAM sections that are going to be handled by the
SRAM controller as subnodes. These sections are represented following
once again the representation described in the mmio-sram binding.
-The valid sections compatible are:
+The valid sections compatible for A10 are:
- allwinner,sun4i-a10-sram-a3-a4
- allwinner,sun4i-a10-sram-d
+The valid sections compatible for A64 are:
+ - allwinner,sun50i-a64-sram-c
+
Devices using SRAM sections
---------------------------
@@ -59,7 +64,6 @@ sram-controller@01c00000 {
emac_sram: sram-section@8000 {
compatible = "allwinner,sun4i-a10-sram-a3-a4";
reg = <0x8000 0x4000>;
- status = "disabled";
};
};
};
diff --git a/Documentation/devicetree/bindings/thermal/armada-thermal.txt b/Documentation/devicetree/bindings/thermal/armada-thermal.txt
index 4698e0edc205..24aacf8948c5 100644
--- a/Documentation/devicetree/bindings/thermal/armada-thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/armada-thermal.txt
@@ -20,5 +20,4 @@ Example:
compatible = "marvell,armada370-thermal";
reg = <0xd0018300 0x4
0xd0018304 0x4>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/thermal/brcm,ns-thermal b/Documentation/devicetree/bindings/thermal/brcm,ns-thermal.txt
index 68e047170039..68e047170039 100644
--- a/Documentation/devicetree/bindings/thermal/brcm,ns-thermal
+++ b/Documentation/devicetree/bindings/thermal/brcm,ns-thermal.txt
diff --git a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
index 70b4c16c7ed8..9b4c7b017495 100644
--- a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
@@ -77,7 +77,6 @@ Example 1):
interrupts = <2 4>;
clocks = <&clock 383>;
clock-names = "tmu_apbif";
- status = "disabled";
vtmu-supply = <&tmu_regulator_node>;
#include "exynos4412-tmu-sensor-conf.dtsi"
};
diff --git a/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt b/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt
index e2f494d74d8a..0d73ea5e9c0c 100644
--- a/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt
@@ -11,6 +11,7 @@ Required properties:
- compatible:
- "mediatek,mt8173-thermal" : For MT8173 family of SoCs
- "mediatek,mt2701-thermal" : For MT2701 family of SoCs
+ - "mediatek,mt2712-thermal" : For MT2712 family of SoCs
- reg: Address range of the thermal controller
- interrupts: IRQ for the thermal controller
- clocks, clock-names: Clocks needed for the thermal controller. required
diff --git a/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.txt b/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.txt
index 07a9713ae6a7..fdf5caa6229b 100644
--- a/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.txt
@@ -36,7 +36,6 @@ Example:
clocks = <&cpg CPG_MOD 522>;
power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
#thermal-sensor-cells = <1>;
- status = "okay";
};
thermal-zones {
diff --git a/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt b/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt
index 43003aec94bd..e3a6234fb1ac 100644
--- a/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt
@@ -4,6 +4,7 @@ Required properties:
- compatible : should be "rockchip,<name>-tsadc"
"rockchip,rk3228-tsadc": found on RK3228 SoCs
"rockchip,rk3288-tsadc": found on RK3288 SoCs
+ "rockchip,rk3328-tsadc": found on RK3328 SoCs
"rockchip,rk3368-tsadc": found on RK3368 SoCs
"rockchip,rk3399-tsadc": found on RK3399 SoCs
- reg : physical base address of the controller and length of memory mapped
diff --git a/Documentation/devicetree/bindings/thermal/uniphier-thermal.txt b/Documentation/devicetree/bindings/thermal/uniphier-thermal.txt
new file mode 100644
index 000000000000..686c0b42ed3f
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/uniphier-thermal.txt
@@ -0,0 +1,64 @@
+* UniPhier Thermal bindings
+
+This describes the devicetree bindings for thermal monitor supported by
+PVT(Process, Voltage and Temperature) monitoring unit implemented on Socionext
+UniPhier SoCs.
+
+Required properties:
+- compatible :
+ - "socionext,uniphier-pxs2-thermal" : For UniPhier PXs2 SoC
+ - "socionext,uniphier-ld20-thermal" : For UniPhier LD20 SoC
+- interrupts : IRQ for the temperature alarm
+- #thermal-sensor-cells : Should be 0. See ./thermal.txt for details.
+
+Optional properties:
+- socionext,tmod-calibration: A pair of calibrated values referred from PVT,
+ in case that the values aren't set on SoC,
+ like a reference board.
+
+Example:
+
+ sysctrl@61840000 {
+ compatible = "socionext,uniphier-ld20-sysctrl",
+ "simple-mfd", "syscon";
+ reg = <0x61840000 0x10000>;
+ ...
+ pvtctl: pvtctl {
+ compatible = "socionext,uniphier-ld20-thermal";
+ interrupts = <0 3 1>;
+ #thermal-sensor-cells = <0>;
+ };
+ ...
+ };
+
+ thermal-zones {
+ cpu_thermal {
+ polling-delay-passive = <250>; /* 250ms */
+ polling-delay = <1000>; /* 1000ms */
+ thermal-sensors = <&pvtctl>;
+
+ trips {
+ cpu_crit: cpu_crit {
+ temperature = <110000>; /* 110C */
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ cpu_alert: cpu_alert {
+ temperature = <100000>; /* 100C */
+ hysteresis = <2000>;
+ type = "passive";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&cpu_alert>;
+ cooling-device = <&cpu0 (-1) (-1)>;
+ };
+ map1 {
+ trip = <&cpu_alert>;
+ cooling-device = <&cpu2 (-1) (-1)>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/timer/actions,owl-timer.txt b/Documentation/devicetree/bindings/timer/actions,owl-timer.txt
new file mode 100644
index 000000000000..e3c28da80cb2
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/actions,owl-timer.txt
@@ -0,0 +1,20 @@
+Actions Semi Owl Timer
+
+Required properties:
+- compatible : "actions,s500-timer" for S500
+ "actions,s900-timer" for S900
+- reg : Offset and length of the register set for the device.
+- interrupts : Should contain the interrupts.
+- interrupt-names : Valid names are: "2hz0", "2hz1",
+ "timer0", "timer1", "timer2", "timer3"
+ See ../resource-names.txt
+
+Example:
+
+ timer@b0168000 {
+ compatible = "actions,s500-timer";
+ reg = <0xb0168000 0x100>;
+ interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "timer0", "timer1";
+ };
diff --git a/Documentation/devicetree/bindings/timer/faraday,fttmr010.txt b/Documentation/devicetree/bindings/timer/faraday,fttmr010.txt
index b73ca6cd07f8..195792270414 100644
--- a/Documentation/devicetree/bindings/timer/faraday,fttmr010.txt
+++ b/Documentation/devicetree/bindings/timer/faraday,fttmr010.txt
@@ -7,7 +7,11 @@ Required properties:
- compatible : Must be one of
"faraday,fttmr010"
- "cortina,gemini-timer"
+ "cortina,gemini-timer", "faraday,fttmr010"
+ "moxa,moxart-timer", "faraday,fttmr010"
+ "aspeed,ast2400-timer"
+ "aspeed,ast2500-timer"
+
- reg : Should contain registers location and length
- interrupts : Should contain the three timer interrupts usually with
flags for falling edge
diff --git a/Documentation/devicetree/bindings/timer/moxa,moxart-timer.txt b/Documentation/devicetree/bindings/timer/moxa,moxart-timer.txt
deleted file mode 100644
index e207c11630af..000000000000
--- a/Documentation/devicetree/bindings/timer/moxa,moxart-timer.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-MOXA ART timer
-
-Required properties:
-
-- compatible : Must be one of:
- - "moxa,moxart-timer"
- - "aspeed,ast2400-timer"
-- reg : Should contain registers location and length
-- interrupts : Should contain the timer interrupt number
-- clocks : Should contain phandle for the clock that drives the counter
-
-Example:
-
- timer: timer@98400000 {
- compatible = "moxa,moxart-timer";
- reg = <0x98400000 0x42>;
- interrupts = <19 1>;
- clocks = <&coreclk>;
- };
diff --git a/Documentation/devicetree/bindings/timer/nxp,tpm-timer.txt b/Documentation/devicetree/bindings/timer/nxp,tpm-timer.txt
new file mode 100644
index 000000000000..b4aa7ddb5b13
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/nxp,tpm-timer.txt
@@ -0,0 +1,28 @@
+NXP Low Power Timer/Pulse Width Modulation Module (TPM)
+
+The Timer/PWM Module (TPM) supports input capture, output compare,
+and the generation of PWM signals to control electric motor and power
+management applications. The counter, compare and capture registers
+are clocked by an asynchronous clock that can remain enabled in low
+power modes. TPM can support global counter bus where one TPM drives
+the counter bus for the others, provided bit width is the same.
+
+Required properties:
+
+- compatible : should be "fsl,imx7ulp-tpm"
+- reg : Specifies base physical address and size of the register sets
+ for the clock event device and clock source device.
+- interrupts : Should be the clock event device interrupt.
+- clocks : The clocks provided by the SoC to drive the timer, must contain
+ an entry for each entry in clock-names.
+- clock-names : Must include the following entries: "igp" and "per".
+
+Example:
+tpm5: tpm@40260000 {
+ compatible = "fsl,imx7ulp-tpm";
+ reg = <0x40260000 0x1000>;
+ interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clks IMX7ULP_CLK_NIC1_BUS_DIV>,
+ <&clks IMX7ULP_CLK_LPTPM5>;
+ clock-names = "ipg", "per";
+};
diff --git a/Documentation/devicetree/bindings/timer/renesas,cmt.txt b/Documentation/devicetree/bindings/timer/renesas,cmt.txt
index 1a05c1b243c1..6ca6b9e582a0 100644
--- a/Documentation/devicetree/bindings/timer/renesas,cmt.txt
+++ b/Documentation/devicetree/bindings/timer/renesas,cmt.txt
@@ -12,46 +12,29 @@ datasheets.
Required Properties:
- compatible: must contain one or more of the following:
- - "renesas,cmt-32-r8a7740" for the r8a7740 32-bit CMT
- (CMT0)
- - "renesas,cmt-32-sh7372" for the sh7372 32-bit CMT
- (CMT0)
- - "renesas,cmt-32-sh73a0" for the sh73a0 32-bit CMT
- (CMT0)
- - "renesas,cmt-32" for all 32-bit CMT without fast clock support
- (CMT0 on sh7372, sh73a0 and r8a7740)
- This is a fallback for the above renesas,cmt-32-* entries.
-
- - "renesas,cmt-32-fast-r8a7740" for the r8a7740 32-bit CMT with fast
- clock support (CMT[234])
- - "renesas,cmt-32-fast-sh7372" for the sh7372 32-bit CMT with fast
- clock support (CMT[234])
- - "renesas,cmt-32-fast-sh73a0" for the sh73A0 32-bit CMT with fast
- clock support (CMT[234])
- - "renesas,cmt-32-fast" for all 32-bit CMT with fast clock support
- (CMT[234] on sh7372, sh73a0 and r8a7740)
- This is a fallback for the above renesas,cmt-32-fast-* entries.
-
- - "renesas,cmt-48-sh7372" for the sh7372 48-bit CMT
- (CMT1)
- "renesas,cmt-48-sh73a0" for the sh73A0 48-bit CMT
(CMT1)
- "renesas,cmt-48-r8a7740" for the r8a7740 48-bit CMT
(CMT1)
- "renesas,cmt-48" for all non-second generation 48-bit CMT
- (CMT1 on sh7372, sh73a0 and r8a7740)
+ (CMT1 on sh73a0 and r8a7740)
This is a fallback for the above renesas,cmt-48-* entries.
- - "renesas,cmt-48-r8a73a4" for the r8a73a4 48-bit CMT
- (CMT[01])
- - "renesas,cmt-48-r8a7790" for the r8a7790 48-bit CMT
- (CMT[01])
- - "renesas,cmt-48-r8a7791" for the r8a7791 48-bit CMT
- (CMT[01])
- - "renesas,cmt-48-gen2" for all second generation 48-bit CMT
- (CMT[01] on r8a73a4, r8a7790 and r8a7791)
- This is a fallback for the renesas,cmt-48-r8a73a4,
- renesas,cmt-48-r8a7790 and renesas,cmt-48-r8a7791 entries.
+ - "renesas,cmt0-r8a73a4" for the 32-bit CMT0 device included in r8a73a4.
+ - "renesas,cmt1-r8a73a4" for the 48-bit CMT1 device included in r8a73a4.
+ - "renesas,cmt0-r8a7790" for the 32-bit CMT0 device included in r8a7790.
+ - "renesas,cmt1-r8a7790" for the 48-bit CMT1 device included in r8a7790.
+ - "renesas,cmt0-r8a7791" for the 32-bit CMT0 device included in r8a7791.
+ - "renesas,cmt1-r8a7791" for the 48-bit CMT1 device included in r8a7791.
+ - "renesas,cmt0-r8a7793" for the 32-bit CMT0 device included in r8a7793.
+ - "renesas,cmt1-r8a7793" for the 48-bit CMT1 device included in r8a7793.
+ - "renesas,cmt0-r8a7794" for the 32-bit CMT0 device included in r8a7794.
+ - "renesas,cmt1-r8a7794" for the 48-bit CMT1 device included in r8a7794.
+
+ - "renesas,rcar-gen2-cmt0" for 32-bit CMT0 devices included in R-Car Gen2.
+ - "renesas,rcar-gen2-cmt1" for 48-bit CMT1 devices included in R-Car Gen2.
+ These are fallbacks for r8a73a4 and all the R-Car Gen2
+ entries listed above.
- reg: base address and length of the registers block for the timer module.
- interrupts: interrupt-specifier for the timer, one per channel.
@@ -59,21 +42,29 @@ Required Properties:
in clock-names.
- clock-names: must contain "fck" for the functional clock.
- - renesas,channels-mask: bitmask of the available channels.
-
-Example: R8A7790 (R-Car H2) CMT0 node
-
- CMT0 on R8A7790 implements hardware channels 5 and 6 only and names
- them channels 0 and 1 in the documentation.
+Example: R8A7790 (R-Car H2) CMT0 and CMT1 nodes
cmt0: timer@ffca0000 {
- compatible = "renesas,cmt-48-r8a7790", "renesas,cmt-48-gen2";
+ compatible = "renesas,cmt0-r8a7790", "renesas,rcar-gen2-cmt0";
reg = <0 0xffca0000 0 0x1004>;
interrupts = <0 142 IRQ_TYPE_LEVEL_HIGH>,
<0 142 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp1_clks R8A7790_CLK_CMT0>;
clock-names = "fck";
+ };
- renesas,channels-mask = <0x60>;
+ cmt1: timer@e6130000 {
+ compatible = "renesas,cmt1-r8a7790", "renesas,rcar-gen2-cmt1";
+ reg = <0 0xe6130000 0 0x1004>;
+ interrupts = <0 120 IRQ_TYPE_LEVEL_HIGH>,
+ <0 121 IRQ_TYPE_LEVEL_HIGH>,
+ <0 122 IRQ_TYPE_LEVEL_HIGH>,
+ <0 123 IRQ_TYPE_LEVEL_HIGH>,
+ <0 124 IRQ_TYPE_LEVEL_HIGH>,
+ <0 125 IRQ_TYPE_LEVEL_HIGH>,
+ <0 126 IRQ_TYPE_LEVEL_HIGH>,
+ <0 127 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&mstp3_clks R8A7790_CLK_CMT1>;
+ clock-names = "fck";
};
diff --git a/Documentation/devicetree/bindings/trivial-devices.txt b/Documentation/devicetree/bindings/trivial-devices.txt
index 3e0a34c88e07..af284fbd4d23 100644
--- a/Documentation/devicetree/bindings/trivial-devices.txt
+++ b/Documentation/devicetree/bindings/trivial-devices.txt
@@ -21,6 +21,16 @@ adi,adt7490 +/-1C TDM Extended Temp Range I.C
adi,adxl345 Three-Axis Digital Accelerometer
adi,adxl346 Three-Axis Digital Accelerometer (backward-compatibility value "adi,adxl345" must be listed too)
ams,iaq-core AMS iAQ-Core VOC Sensor
+amstaos,tsl2571 AMS/TAOS ALS and proximity sensor
+amstaos,tsl2671 AMS/TAOS ALS and proximity sensor
+amstaos,tmd2671 AMS/TAOS ALS and proximity sensor
+amstaos,tsl2771 AMS/TAOS ALS and proximity sensor
+amstaos,tmd2771 AMS/TAOS ALS and proximity sensor
+amstaos,tsl2572 AMS/TAOS ALS and proximity sensor
+amstaos,tsl2672 AMS/TAOS ALS and proximity sensor
+amstaos,tmd2672 AMS/TAOS ALS and proximity sensor
+amstaos,tsl2772 AMS/TAOS ALS and proximity sensor
+amstaos,tmd2772 AMS/TAOS ALS and proximity sensor
at,24c08 i2c serial eeprom (24cxx)
atmel,at97sc3204t i2c trusted platform module (TPM)
capella,cm32181 CM32181: Ambient Light Sensor
@@ -36,7 +46,9 @@ dallas,ds1775 Tiny Digital Thermometer and Thermostat
dallas,ds3232 Extremely Accurate I²C RTC with Integrated Crystal and SRAM
dallas,ds4510 CPU Supervisor with Nonvolatile Memory and Programmable I/O
dallas,ds75 Digital Thermometer and Thermostat
+devantech,srf02 Devantech SRF02 ultrasonic ranger in I2C mode
devantech,srf08 Devantech SRF08 ultrasonic ranger
+devantech,srf10 Devantech SRF10 ultrasonic ranger
dlg,da9053 DA9053: flexible system level PMIC with multicore support
dlg,da9063 DA9063: system PMIC for quad-core application processors
domintech,dmard09 DMARD09: 3-axis Accelerometer
@@ -54,7 +66,9 @@ fsl,sgtl5000 SGTL5000: Ultra Low-Power Audio Codec
gmt,g751 G751: Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface
infineon,slb9635tt Infineon SLB9635 (Soft-) I2C TPM (old protocol, max 100khz)
infineon,slb9645tt Infineon SLB9645 I2C TPM (new protocol, max 400khz)
+isil,isl1208 Intersil ISL1208 Low Power RTC with Battery Backed SRAM
isil,isl29028 Intersil ISL29028 Ambient Light and Proximity Sensor
+isil,isl29030 Intersil ISL29030 Ambient Light and Proximity Sensor
maxim,ds1050 5 Bit Programmable, Pulse-Width Modulator
maxim,max1237 Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
maxim,max6625 9-Bit/12-Bit Temperature Sensors with I²C-Compatible Serial Interface
@@ -167,6 +181,7 @@ st,m41t80 M41T80 - SERIAL ACCESS RTC WITH ALARMS
taos,tsl2550 Ambient Light Sensor with SMBUS/Two Wire Serial Interface
ti,ads7828 8-Channels, 12-bit ADC
ti,ads7830 8-Channels, 8-bit ADC
+ti,amc6821 Temperature Monitoring and Fan Control
ti,tsc2003 I2C Touch-Screen Controller
ti,tmp102 Low Power Digital Temperature Sensor with SMBUS/Two Wire Serial Interface
ti,tmp103 Low Power Digital Temperature Sensor with SMBUS/Two Wire Serial Interface
diff --git a/Documentation/devicetree/bindings/unittest.txt b/Documentation/devicetree/bindings/unittest.txt
index 3bf58c20fe94..9a5b311f4434 100644
--- a/Documentation/devicetree/bindings/unittest.txt
+++ b/Documentation/devicetree/bindings/unittest.txt
@@ -10,7 +10,6 @@ All other properties are optional.
Example:
unittest {
compatible = "unittest";
- status = "okay";
};
2) OF unittest i2c adapter platform device
@@ -25,7 +24,6 @@ Children nodes contain unittest i2c devices.
Example:
unittest-i2c-bus {
compatible = "unittest-i2c-bus";
- status = "okay";
};
3) OF unittest i2c device
@@ -40,7 +38,6 @@ All other properties are optional
Example:
unittest-i2c-dev {
compatible = "unittest-i2c-dev";
- status = "okay";
};
4) OF unittest i2c mux device
@@ -55,7 +52,6 @@ Children nodes contain unittest i2c bus nodes per channel.
Example:
unittest-i2c-mux {
compatible = "unittest-i2c-mux";
- status = "okay";
#address-cells = <1>;
#size-cells = <0>;
channel-0 {
@@ -65,7 +61,6 @@ Example:
i2c-dev {
reg = <8>;
compatible = "unittest-i2c-dev";
- status = "okay";
};
};
};
diff --git a/Documentation/devicetree/bindings/usb/allwinner,sun4i-a10-musb.txt b/Documentation/devicetree/bindings/usb/allwinner,sun4i-a10-musb.txt
index d9b42da016f3..cb2bd83fa89a 100644
--- a/Documentation/devicetree/bindings/usb/allwinner,sun4i-a10-musb.txt
+++ b/Documentation/devicetree/bindings/usb/allwinner,sun4i-a10-musb.txt
@@ -25,5 +25,4 @@ Example:
phys = <&usbphy 0>;
phy-names = "usb";
extcon = <&usbphy 0>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/usb/am33xx-usb.txt b/Documentation/devicetree/bindings/usb/am33xx-usb.txt
index 20c2ff2ba07e..16920d78e1b8 100644
--- a/Documentation/devicetree/bindings/usb/am33xx-usb.txt
+++ b/Documentation/devicetree/bindings/usb/am33xx-usb.txt
@@ -4,9 +4,9 @@
- reg: offset and length of the usbss register sets
- ti,hwmods : must be "usb_otg_hs"
-The glue layer contains multiple child nodes. It is required the have
+The glue layer contains multiple child nodes. It is required to have
at least a control module node, USB node and a PHY node. The second USB
-node and its PHY node is optional. The DMA node is also optional.
+node and its PHY node are optional. The DMA node is also optional.
Reset module
~~~~~~~~~~~~
diff --git a/Documentation/devicetree/bindings/usb/brcm,bdc.txt b/Documentation/devicetree/bindings/usb/brcm,bdc.txt
new file mode 100644
index 000000000000..63e63af3bf59
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/brcm,bdc.txt
@@ -0,0 +1,29 @@
+Broadcom USB Device Controller (BDC)
+====================================
+
+Required properties:
+
+- compatible: must be one of:
+ "brcm,bdc-v0.16"
+ "brcm,bdc"
+- reg: the base register address and length
+- interrupts: the interrupt line for this controller
+
+Optional properties:
+
+On Broadcom STB platforms, these properties are required:
+
+- phys: phandle to one or two USB PHY blocks
+ NOTE: Some SoC's have a single phy and some have
+ USB 2.0 and USB 3.0 phys
+- clocks: phandle to the functional clock of this block
+
+Example:
+
+ bdc@f0b02000 {
+ compatible = "brcm,bdc-v0.16";
+ reg = <0xf0b02000 0xfc4>;
+ interrupts = <0x0 0x60 0x0>;
+ phys = <&usbphy_0 0x0>;
+ clocks = <&sw_usbd>;
+ };
diff --git a/Documentation/devicetree/bindings/usb/da8xx-usb.txt b/Documentation/devicetree/bindings/usb/da8xx-usb.txt
index 717c5f656237..9ce22551b2b3 100644
--- a/Documentation/devicetree/bindings/usb/da8xx-usb.txt
+++ b/Documentation/devicetree/bindings/usb/da8xx-usb.txt
@@ -42,7 +42,6 @@ Example:
usb_phy: usb-phy {
compatible = "ti,da830-usb-phy";
#phy-cells = <0>;
- status = "okay";
};
usb0: usb@200000 {
compatible = "ti,da830-musb";
@@ -66,7 +65,6 @@ Example:
"rx1", "rx2", "rx3", "rx4",
"tx1", "tx2", "tx3", "tx4";
- status = "okay";
cppi41dma: dma-controller@201000 {
compatible = "ti,da830-cppi41";
diff --git a/Documentation/devicetree/bindings/usb/dwc3-st.txt b/Documentation/devicetree/bindings/usb/dwc3-st.txt
index 50dee3b44665..df0e02e1ee43 100644
--- a/Documentation/devicetree/bindings/usb/dwc3-st.txt
+++ b/Documentation/devicetree/bindings/usb/dwc3-st.txt
@@ -42,7 +42,6 @@ or "device".
Example:
st_dwc3: dwc3@8f94000 {
- status = "disabled";
compatible = "st,stih407-dwc3";
reg = <0x08f94000 0x1000>, <0x110 0x4>;
reg-names = "reg-glue", "syscfg-reg";
diff --git a/Documentation/devicetree/bindings/usb/dwc3-xilinx.txt b/Documentation/devicetree/bindings/usb/dwc3-xilinx.txt
index 30361b32a460..4aae5b2cef56 100644
--- a/Documentation/devicetree/bindings/usb/dwc3-xilinx.txt
+++ b/Documentation/devicetree/bindings/usb/dwc3-xilinx.txt
@@ -18,7 +18,6 @@ Example device node:
usb@0 {
#address-cells = <0x2>;
#size-cells = <0x1>;
- status = "okay";
compatible = "xlnx,zynqmp-dwc3";
clock-names = "bus_clk" "ref_clk";
clocks = <&clk125>, <&clk125>;
diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt
index f658f394c2d3..52fb41046b34 100644
--- a/Documentation/devicetree/bindings/usb/dwc3.txt
+++ b/Documentation/devicetree/bindings/usb/dwc3.txt
@@ -45,6 +45,8 @@ Optional properties:
a free-running PHY clock.
- snps,dis-del-phy-power-chg-quirk: when set core will change PHY power
from P0 to P1/P2/P3 without delay.
+ - snps,dis-tx-ipgap-linecheck-quirk: when set, disable u2mac linestate check
+ during HS transmit.
- snps,is-utmi-l1-suspend: true when DWC3 asserts output signal
utmi_l1_suspend_n, false when asserts utmi_sleep_n
- snps,hird-threshold: HIRD threshold
diff --git a/Documentation/devicetree/bindings/usb/ehci-st.txt b/Documentation/devicetree/bindings/usb/ehci-st.txt
index 410d922cfdd7..9feea6c3e4d9 100644
--- a/Documentation/devicetree/bindings/usb/ehci-st.txt
+++ b/Documentation/devicetree/bindings/usb/ehci-st.txt
@@ -31,7 +31,6 @@ Example:
clocks = <&clk_s_a1_ls 0>;
phys = <&usb2_phy>;
phy-names = "usb";
- status = "okay";
resets = <&powerdown STIH416_USB1_POWERDOWN>,
<&softreset STIH416_USB1_SOFTRESET>;
diff --git a/Documentation/devicetree/bindings/usb/exynos-usb.txt b/Documentation/devicetree/bindings/usb/exynos-usb.txt
index 9b4dbe3b2acc..c97374315049 100644
--- a/Documentation/devicetree/bindings/usb/exynos-usb.txt
+++ b/Documentation/devicetree/bindings/usb/exynos-usb.txt
@@ -40,7 +40,6 @@ Example:
port@0 {
reg = <0>;
phys = <&usb2phy 1>;
- status = "disabled";
};
};
@@ -75,7 +74,6 @@ Example:
port@0 {
reg = <0>;
phys = <&usb2phy 1>;
- status = "disabled";
};
};
@@ -92,6 +90,8 @@ Required properties:
parent's address space
- clocks: Clock IDs array as required by the controller.
- clock-names: names of clocks correseponding to IDs in the clock property
+ - vdd10-supply: 1.0V powr supply
+ - vdd33-supply: 3.0V/3.3V power supply
Sub-nodes:
The dwc3 core should be added as subnode to Exynos dwc3 glue.
@@ -107,6 +107,8 @@ Example:
#address-cells = <1>;
#size-cells = <1>;
ranges;
+ vdd10-supply = <&ldo11_reg>;
+ vdd33-supply = <&ldo9_reg>;
dwc3 {
compatible = "synopsys,dwc3";
diff --git a/Documentation/devicetree/bindings/usb/fcs,fusb302.txt b/Documentation/devicetree/bindings/usb/fcs,fusb302.txt
new file mode 100644
index 000000000000..472facfa5a71
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/fcs,fusb302.txt
@@ -0,0 +1,29 @@
+Fairchild FUSB302 Type-C Port controllers
+
+Required properties :
+- compatible : "fcs,fusb302"
+- reg : I2C slave address
+- interrupts : Interrupt specifier
+
+Optional properties :
+- fcs,max-sink-microvolt : Maximum voltage to negotiate when configured as sink
+- fcs,max-sink-microamp : Maximum current to negotiate when configured as sink
+- fcs,max-sink-microwatt : Maximum power to negotiate when configured as sink
+ If this is less then max-sink-microvolt *
+ max-sink-microamp then the configured current will
+ be clamped.
+- fcs,operating-sink-microwatt :
+ Minimum amount of power accepted from a sink
+ when negotiating
+
+Example:
+
+fusb302: typec-portc@54 {
+ compatible = "fcs,fusb302";
+ reg = <0x54>;
+ interrupt-parent = <&nmi_intc>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ fcs,max-sink-microvolt = <12000000>;
+ fcs,max-sink-microamp = <3000000>;
+ fcs,max-sink-microwatt = <36000000>;
+};
diff --git a/Documentation/devicetree/bindings/usb/iproc-udc.txt b/Documentation/devicetree/bindings/usb/iproc-udc.txt
new file mode 100644
index 000000000000..272d7faf1a97
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/iproc-udc.txt
@@ -0,0 +1,21 @@
+Broadcom IPROC USB Device controller.
+
+The device node is used for UDCs integrated into Broadcom's
+iProc family (Northstar2, Cygnus) of SoCs'. The UDC is based
+on Synopsys Designware Cores AHB Subsystem Device Controller
+IP.
+
+Required properties:
+ - compatible: Add the compatibility strings for supported platforms.
+ For Broadcom NS2 platform, add "brcm,ns2-udc","brcm,iproc-udc".
+ For Broadcom Cygnus platform, add "brcm,cygnus-udc", "brcm,iproc-udc".
+ - reg: Offset and length of UDC register set
+ - interrupts: description of interrupt line
+ - phys: phandle to phy node.
+
+Example:
+ udc_dwc: usb@664e0000 {
+ compatible = "brcm,ns2-udc", "brcm,iproc-udc";
+ reg = <0x664e0000 0x2000>;
+ interrupts = <GIC_SPI 424 IRQ_TYPE_LEVEL_HIGH>;
+ phys = <&usbdrd_phy>;
diff --git a/Documentation/devicetree/bindings/usb/isp1301.txt b/Documentation/devicetree/bindings/usb/isp1301.txt
index 5405d99d9aaa..ecd607dacba5 100644
--- a/Documentation/devicetree/bindings/usb/isp1301.txt
+++ b/Documentation/devicetree/bindings/usb/isp1301.txt
@@ -21,5 +21,4 @@ Example:
interrupt-parent = <&mic>;
interrupts = <0x3d 0>, <0x3e 0>, <0x3c 0>, <0x3a 0>;
transceiver = <&isp1301>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/usb/keystone-usb.txt b/Documentation/devicetree/bindings/usb/keystone-usb.txt
index 60527d335b58..f96e09f784cc 100644
--- a/Documentation/devicetree/bindings/usb/keystone-usb.txt
+++ b/Documentation/devicetree/bindings/usb/keystone-usb.txt
@@ -12,8 +12,21 @@ Required properties:
MPU.
- ranges: allows valid 1:1 translation between child's address space and
parent's address space.
- - clocks: Clock IDs array as required by the controller.
- - clock-names: names of clocks correseponding to IDs in the clock property.
+
+SoC-specific Required Properties:
+The following are mandatory properties for Keystone 2 66AK2HK, 66AK2L and 66AK2E
+SoCs only:
+
+- clocks: Clock ID for USB functional clock.
+- clock-names: Must be "usb".
+
+
+The following are mandatory properties for Keystone 2 66AK2G SoCs only:
+
+- power-domains: Should contain a phandle to a PM domain provider node
+ and an args specifier containing the USB device id
+ value. This property is as per the binding,
+ Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
Sub-nodes:
The dwc3 core should be added as subnode to Keystone DWC3 glue.
@@ -31,7 +44,6 @@ Example:
clock-names = "usb";
interrupts = <GIC_SPI 393 IRQ_TYPE_EDGE_RISING>;
ranges;
- status = "disabled";
dwc3@2690000 {
compatible = "synopsys,dwc3";
diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt
new file mode 100644
index 000000000000..5611a2e4ddf0
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt
@@ -0,0 +1,111 @@
+MT8173 xHCI
+
+The device node for Mediatek SOC USB3.0 host controller
+
+There are two scenarios: the first one only supports xHCI driver;
+the second one supports dual-role mode, and the host is based on xHCI
+driver. Take account of backward compatibility, we divide bindings
+into two parts.
+
+1st: only supports xHCI driver
+------------------------------------------------------------------------
+
+Required properties:
+ - compatible : should be "mediatek,<soc-model>-xhci", "mediatek,mtk-xhci",
+ soc-model is the name of SoC, such as mt8173, mt2712 etc, when using
+ "mediatek,mtk-xhci" compatible string, you need SoC specific ones in
+ addition, one of:
+ - "mediatek,mt8173-xhci"
+ - reg : specifies physical base address and size of the registers
+ - reg-names: should be "mac" for xHCI MAC and "ippc" for IP port control
+ - interrupts : interrupt used by the controller
+ - power-domains : a phandle to USB power domain node to control USB's
+ mtcmos
+ - vusb33-supply : regulator of USB avdd3.3v
+
+ - clocks : a list of phandle + clock-specifier pairs, one for each
+ entry in clock-names
+ - clock-names : must contain
+ "sys_ck": for clock of xHCI MAC
+ "ref_ck": for reference clock of xHCI MAC
+ "wakeup_deb_p0": for USB wakeup debounce clock of port0
+ "wakeup_deb_p1": for USB wakeup debounce clock of port1
+
+ - phys : a list of phandle + phy specifier pairs
+
+Optional properties:
+ - mediatek,wakeup-src : 1: ip sleep wakeup mode; 2: line state wakeup
+ mode;
+ - mediatek,syscon-wakeup : phandle to syscon used to access USB wakeup
+ control register, it depends on "mediatek,wakeup-src".
+ - vbus-supply : reference to the VBUS regulator;
+ - usb3-lpm-capable : supports USB3.0 LPM
+ - pinctrl-names : a pinctrl state named "default" must be defined
+ - pinctrl-0 : pin control group
+ See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
+
+Example:
+usb30: usb@11270000 {
+ compatible = "mediatek,mt8173-xhci";
+ reg = <0 0x11270000 0 0x1000>,
+ <0 0x11280700 0 0x0100>;
+ reg-names = "mac", "ippc";
+ interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_LOW>;
+ power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>;
+ clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>,
+ <&pericfg CLK_PERI_USB0>,
+ <&pericfg CLK_PERI_USB1>;
+ clock-names = "sys_ck", "ref_ck",
+ "wakeup_deb_p0",
+ "wakeup_deb_p1";
+ phys = <&phy_port0 PHY_TYPE_USB3>,
+ <&phy_port1 PHY_TYPE_USB2>;
+ vusb33-supply = <&mt6397_vusb_reg>;
+ vbus-supply = <&usb_p1_vbus>;
+ usb3-lpm-capable;
+ mediatek,syscon-wakeup = <&pericfg>;
+ mediatek,wakeup-src = <1>;
+};
+
+2nd: dual-role mode with xHCI driver
+------------------------------------------------------------------------
+
+In the case, xhci is added as subnode to mtu3. An example and the DT binding
+details of mtu3 can be found in:
+Documentation/devicetree/bindings/usb/mediatek,mtu3.txt
+
+Required properties:
+ - compatible : should be "mediatek,<soc-model>-xhci", "mediatek,mtk-xhci",
+ soc-model is the name of SoC, such as mt8173, mt2712 etc, when using
+ "mediatek,mtk-xhci" compatible string, you need SoC specific ones in
+ addition, one of:
+ - "mediatek,mt8173-xhci"
+ - reg : specifies physical base address and size of the registers
+ - reg-names: should be "mac" for xHCI MAC
+ - interrupts : interrupt used by the host controller
+ - power-domains : a phandle to USB power domain node to control USB's
+ mtcmos
+ - vusb33-supply : regulator of USB avdd3.3v
+
+ - clocks : a list of phandle + clock-specifier pairs, one for each
+ entry in clock-names
+ - clock-names : must be
+ "sys_ck": for clock of xHCI MAC
+ "ref_ck": for reference clock of xHCI MAC
+
+Optional properties:
+ - vbus-supply : reference to the VBUS regulator;
+ - usb3-lpm-capable : supports USB3.0 LPM
+
+Example:
+usb30: usb@11270000 {
+ compatible = "mediatek,mt8173-xhci";
+ reg = <0 0x11270000 0 0x1000>;
+ reg-names = "mac";
+ interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_LOW>;
+ power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>;
+ clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>;
+ clock-names = "sys_ck", "ref_ck";
+ vusb33-supply = <&mt6397_vusb_reg>;
+ usb3-lpm-capable;
+};
diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt b/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt
new file mode 100644
index 000000000000..49f54767cd21
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt
@@ -0,0 +1,89 @@
+The device node for Mediatek USB3.0 DRD controller
+
+Required properties:
+ - compatible : should be "mediatek,<soc-model>-mtu3", "mediatek,mtu3",
+ soc-model is the name of SoC, such as mt8173, mt2712 etc,
+ when using "mediatek,mtu3" compatible string, you need SoC specific
+ ones in addition, one of:
+ - "mediatek,mt8173-mtu3"
+ - reg : specifies physical base address and size of the registers
+ - reg-names: should be "mac" for device IP and "ippc" for IP port control
+ - interrupts : interrupt used by the device IP
+ - power-domains : a phandle to USB power domain node to control USB's
+ mtcmos
+ - vusb33-supply : regulator of USB avdd3.3v
+ - clocks : a list of phandle + clock-specifier pairs, one for each
+ entry in clock-names
+ - clock-names : must contain "sys_ck" and "ref_ck" for clock of controller;
+ "wakeup_deb_p0" and "wakeup_deb_p1" are optional, they are
+ depends on "mediatek,enable-wakeup"
+ - phys : a list of phandle + phy specifier pairs
+ - dr_mode : should be one of "host", "peripheral" or "otg",
+ refer to usb/generic.txt
+
+Optional properties:
+ - #address-cells, #size-cells : should be '2' if the device has sub-nodes
+ with 'reg' property
+ - ranges : allows valid 1:1 translation between child's address space and
+ parent's address space
+ - extcon : external connector for vbus and idpin changes detection, needed
+ when supports dual-role mode.
+ - vbus-supply : reference to the VBUS regulator, needed when supports
+ dual-role mode.
+ - pinctl-names : a pinctrl state named "default" must be defined,
+ "id_float" and "id_ground" are optinal which depends on
+ "mediatek,enable-manual-drd"
+ - pinctrl-0 : pin control group
+ See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
+
+ - maximum-speed : valid arguments are "super-speed", "high-speed" and
+ "full-speed"; refer to usb/generic.txt
+ - enable-manual-drd : supports manual dual-role switch via debugfs; usually
+ used when receptacle is TYPE-A and also wants to support dual-role
+ mode.
+ - mediatek,enable-wakeup : supports ip sleep wakeup used by host mode
+ - mediatek,syscon-wakeup : phandle to syscon used to access USB wakeup
+ control register, it depends on "mediatek,enable-wakeup".
+
+Sub-nodes:
+The xhci should be added as subnode to mtu3 as shown in the following example
+if host mode is enabled. The DT binding details of xhci can be found in:
+Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt
+
+Example:
+ssusb: usb@11271000 {
+ compatible = "mediatek,mt8173-mtu3";
+ reg = <0 0x11271000 0 0x3000>,
+ <0 0x11280700 0 0x0100>;
+ reg-names = "mac", "ippc";
+ interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_LOW>;
+ phys = <&phy_port0 PHY_TYPE_USB3>,
+ <&phy_port1 PHY_TYPE_USB2>;
+ power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>;
+ clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>,
+ <&pericfg CLK_PERI_USB0>,
+ <&pericfg CLK_PERI_USB1>;
+ clock-names = "sys_ck", "ref_ck",
+ "wakeup_deb_p0",
+ "wakeup_deb_p1";
+ vusb33-supply = <&mt6397_vusb_reg>;
+ vbus-supply = <&usb_p0_vbus>;
+ extcon = <&extcon_usb>;
+ dr_mode = "otg";
+ mediatek,enable-wakeup;
+ mediatek,syscon-wakeup = <&pericfg>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ usb_host: xhci@11270000 {
+ compatible = "mediatek,mt8173-xhci";
+ reg = <0 0x11270000 0 0x1000>;
+ reg-names = "mac";
+ interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_LOW>;
+ power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>;
+ clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>;
+ clock-names = "sys_ck", "ref_ck";
+ vusb33-supply = <&mt6397_vusb_reg>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/usb/mt8173-mtu3.txt b/Documentation/devicetree/bindings/usb/mt8173-mtu3.txt
deleted file mode 100644
index 1d7c3bc677f7..000000000000
--- a/Documentation/devicetree/bindings/usb/mt8173-mtu3.txt
+++ /dev/null
@@ -1,87 +0,0 @@
-The device node for Mediatek USB3.0 DRD controller
-
-Required properties:
- - compatible : should be "mediatek,mt8173-mtu3"
- - reg : specifies physical base address and size of the registers
- - reg-names: should be "mac" for device IP and "ippc" for IP port control
- - interrupts : interrupt used by the device IP
- - power-domains : a phandle to USB power domain node to control USB's
- mtcmos
- - vusb33-supply : regulator of USB avdd3.3v
- - clocks : a list of phandle + clock-specifier pairs, one for each
- entry in clock-names
- - clock-names : must contain "sys_ck" and "ref_ck" for clock of controller;
- "wakeup_deb_p0" and "wakeup_deb_p1" are optional, they are
- depends on "mediatek,enable-wakeup"
- - phys : a list of phandle + phy specifier pairs
- - dr_mode : should be one of "host", "peripheral" or "otg",
- refer to usb/generic.txt
-
-Optional properties:
- - #address-cells, #size-cells : should be '2' if the device has sub-nodes
- with 'reg' property
- - ranges : allows valid 1:1 translation between child's address space and
- parent's address space
- - extcon : external connector for vbus and idpin changes detection, needed
- when supports dual-role mode.
- - vbus-supply : reference to the VBUS regulator, needed when supports
- dual-role mode.
- - pinctl-names : a pinctrl state named "default" must be defined,
- "id_float" and "id_ground" are optinal which depends on
- "mediatek,enable-manual-drd"
- - pinctrl-0 : pin control group
- See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
-
- - maximum-speed : valid arguments are "super-speed", "high-speed" and
- "full-speed"; refer to usb/generic.txt
- - enable-manual-drd : supports manual dual-role switch via debugfs; usually
- used when receptacle is TYPE-A and also wants to support dual-role
- mode.
- - mediatek,enable-wakeup : supports ip sleep wakeup used by host mode
- - mediatek,syscon-wakeup : phandle to syscon used to access USB wakeup
- control register, it depends on "mediatek,enable-wakeup".
-
-Sub-nodes:
-The xhci should be added as subnode to mtu3 as shown in the following example
-if host mode is enabled. The DT binding details of xhci can be found in:
-Documentation/devicetree/bindings/usb/mt8173-xhci.txt
-
-Example:
-ssusb: usb@11271000 {
- compatible = "mediatek,mt8173-mtu3";
- reg = <0 0x11271000 0 0x3000>,
- <0 0x11280700 0 0x0100>;
- reg-names = "mac", "ippc";
- interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_LOW>;
- phys = <&phy_port0 PHY_TYPE_USB3>,
- <&phy_port1 PHY_TYPE_USB2>;
- power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>;
- clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>,
- <&pericfg CLK_PERI_USB0>,
- <&pericfg CLK_PERI_USB1>;
- clock-names = "sys_ck", "ref_ck",
- "wakeup_deb_p0",
- "wakeup_deb_p1";
- vusb33-supply = <&mt6397_vusb_reg>;
- vbus-supply = <&usb_p0_vbus>;
- extcon = <&extcon_usb>;
- dr_mode = "otg";
- mediatek,enable-wakeup;
- mediatek,syscon-wakeup = <&pericfg>;
- #address-cells = <2>;
- #size-cells = <2>;
- ranges;
- status = "disabled";
-
- usb_host: xhci@11270000 {
- compatible = "mediatek,mt8173-xhci";
- reg = <0 0x11270000 0 0x1000>;
- reg-names = "mac";
- interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_LOW>;
- power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>;
- clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>;
- clock-names = "sys_ck", "ref_ck";
- vusb33-supply = <&mt6397_vusb_reg>;
- status = "disabled";
- };
-};
diff --git a/Documentation/devicetree/bindings/usb/mt8173-xhci.txt b/Documentation/devicetree/bindings/usb/mt8173-xhci.txt
deleted file mode 100644
index 0acfc8acbea1..000000000000
--- a/Documentation/devicetree/bindings/usb/mt8173-xhci.txt
+++ /dev/null
@@ -1,103 +0,0 @@
-MT8173 xHCI
-
-The device node for Mediatek SOC USB3.0 host controller
-
-There are two scenarios: the first one only supports xHCI driver;
-the second one supports dual-role mode, and the host is based on xHCI
-driver. Take account of backward compatibility, we divide bindings
-into two parts.
-
-1st: only supports xHCI driver
-------------------------------------------------------------------------
-
-Required properties:
- - compatible : should contain "mediatek,mt8173-xhci"
- - reg : specifies physical base address and size of the registers
- - reg-names: should be "mac" for xHCI MAC and "ippc" for IP port control
- - interrupts : interrupt used by the controller
- - power-domains : a phandle to USB power domain node to control USB's
- mtcmos
- - vusb33-supply : regulator of USB avdd3.3v
-
- - clocks : a list of phandle + clock-specifier pairs, one for each
- entry in clock-names
- - clock-names : must contain
- "sys_ck": for clock of xHCI MAC
- "ref_ck": for reference clock of xHCI MAC
- "wakeup_deb_p0": for USB wakeup debounce clock of port0
- "wakeup_deb_p1": for USB wakeup debounce clock of port1
-
- - phys : a list of phandle + phy specifier pairs
-
-Optional properties:
- - mediatek,wakeup-src : 1: ip sleep wakeup mode; 2: line state wakeup
- mode;
- - mediatek,syscon-wakeup : phandle to syscon used to access USB wakeup
- control register, it depends on "mediatek,wakeup-src".
- - vbus-supply : reference to the VBUS regulator;
- - usb3-lpm-capable : supports USB3.0 LPM
- - pinctrl-names : a pinctrl state named "default" must be defined
- - pinctrl-0 : pin control group
- See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
-
-Example:
-usb30: usb@11270000 {
- compatible = "mediatek,mt8173-xhci";
- reg = <0 0x11270000 0 0x1000>,
- <0 0x11280700 0 0x0100>;
- reg-names = "mac", "ippc";
- interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_LOW>;
- power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>;
- clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>,
- <&pericfg CLK_PERI_USB0>,
- <&pericfg CLK_PERI_USB1>;
- clock-names = "sys_ck", "ref_ck",
- "wakeup_deb_p0",
- "wakeup_deb_p1";
- phys = <&phy_port0 PHY_TYPE_USB3>,
- <&phy_port1 PHY_TYPE_USB2>;
- vusb33-supply = <&mt6397_vusb_reg>;
- vbus-supply = <&usb_p1_vbus>;
- usb3-lpm-capable;
- mediatek,syscon-wakeup = <&pericfg>;
- mediatek,wakeup-src = <1>;
-};
-
-2nd: dual-role mode with xHCI driver
-------------------------------------------------------------------------
-
-In the case, xhci is added as subnode to mtu3. An example and the DT binding
-details of mtu3 can be found in:
-Documentation/devicetree/bindings/usb/mt8173-mtu3.txt
-
-Required properties:
- - compatible : should contain "mediatek,mt8173-xhci"
- - reg : specifies physical base address and size of the registers
- - reg-names: should be "mac" for xHCI MAC
- - interrupts : interrupt used by the host controller
- - power-domains : a phandle to USB power domain node to control USB's
- mtcmos
- - vusb33-supply : regulator of USB avdd3.3v
-
- - clocks : a list of phandle + clock-specifier pairs, one for each
- entry in clock-names
- - clock-names : must be
- "sys_ck": for clock of xHCI MAC
- "ref_ck": for reference clock of xHCI MAC
-
-Optional properties:
- - vbus-supply : reference to the VBUS regulator;
- - usb3-lpm-capable : supports USB3.0 LPM
-
-Example:
-usb30: usb@11270000 {
- compatible = "mediatek,mt8173-xhci";
- reg = <0 0x11270000 0 0x1000>;
- reg-names = "mac";
- interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_LOW>;
- power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>;
- clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>;
- clock-names = "sys_ck", "ref_ck";
- vusb33-supply = <&mt6397_vusb_reg>;
- usb3-lpm-capable;
-};
diff --git a/Documentation/devicetree/bindings/usb/ohci-st.txt b/Documentation/devicetree/bindings/usb/ohci-st.txt
index 6d8393748da2..d893ec9131c3 100644
--- a/Documentation/devicetree/bindings/usb/ohci-st.txt
+++ b/Documentation/devicetree/bindings/usb/ohci-st.txt
@@ -29,7 +29,6 @@ Example:
clock-names = "ic", "clk48";
phys = <&usb2_phy>;
phy-names = "usb";
- status = "okay";
resets = <&powerdown STIH416_USB0_POWERDOWN>,
<&softreset STIH416_USB0_SOFTRESET>;
diff --git a/Documentation/devicetree/bindings/usb/qcom,dwc3.txt b/Documentation/devicetree/bindings/usb/qcom,dwc3.txt
index 73cc0963e823..bc8a2fa5d2bf 100644
--- a/Documentation/devicetree/bindings/usb/qcom,dwc3.txt
+++ b/Documentation/devicetree/bindings/usb/qcom,dwc3.txt
@@ -29,7 +29,6 @@ Example device nodes:
clock-names = "ref";
#phy-cells = <0>;
- status = "ok";
};
ss_phy: phy@100f8830 {
@@ -39,7 +38,6 @@ Example device nodes:
clock-names = "ref";
#phy-cells = <0>;
- status = "ok";
};
usb3_0: usb30@0 {
@@ -51,7 +49,6 @@ Example device nodes:
ranges;
- status = "ok";
dwc3@10000000 {
compatible = "snps,dwc3";
diff --git a/Documentation/devicetree/bindings/usb/renesas_usb3.txt b/Documentation/devicetree/bindings/usb/renesas_usb3.txt
index 8d52766f07b9..e28025883b79 100644
--- a/Documentation/devicetree/bindings/usb/renesas_usb3.txt
+++ b/Documentation/devicetree/bindings/usb/renesas_usb3.txt
@@ -3,20 +3,30 @@ Renesas Electronics USB3.0 Peripheral driver
Required properties:
- compatible: Must contain one of the following:
- "renesas,r8a7795-usb3-peri"
+ - "renesas,r8a7796-usb3-peri"
+ - "renesas,rcar-gen3-usb3-peri" for a generic R-Car Gen3 compatible
+ device
+
+ When compatible with the generic version, nodes must list the
+ SoC-specific version corresponding to the platform first
+ followed by the generic version.
+
- reg: Base address and length of the register for the USB3.0 Peripheral
- interrupts: Interrupt specifier for the USB3.0 Peripheral
- clocks: clock phandle and specifier pair
-Example:
+Example of R-Car H3 ES1.x:
usb3_peri0: usb@ee020000 {
- compatible = "renesas,r8a7795-usb3-peri";
+ compatible = "renesas,r8a7795-usb3-peri",
+ "renesas,rcar-gen3-usb3-peri";
reg = <0 0xee020000 0 0x400>;
interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cpg CPG_MOD 328>;
};
usb3_peri1: usb@ee060000 {
- compatible = "renesas,r8a7795-usb3-peri";
+ compatible = "renesas,r8a7795-usb3-peri",
+ "renesas,rcar-gen3-usb3-peri";
reg = <0 0xee060000 0 0x400>;
interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cpg CPG_MOD 327>;
diff --git a/Documentation/devicetree/bindings/usb/rockchip,dwc3.txt b/Documentation/devicetree/bindings/usb/rockchip,dwc3.txt
index 0536a938e3ab..50a31536e975 100644
--- a/Documentation/devicetree/bindings/usb/rockchip,dwc3.txt
+++ b/Documentation/devicetree/bindings/usb/rockchip,dwc3.txt
@@ -29,13 +29,11 @@ Example device nodes:
#address-cells = <2>;
#size-cells = <2>;
ranges;
- status = "disabled";
usbdrd_dwc3_0: dwc3@fe800000 {
compatible = "snps,dwc3";
reg = <0x0 0xfe800000 0x0 0x100000>;
interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
dr_mode = "otg";
- status = "disabled";
};
};
@@ -48,12 +46,10 @@ Example device nodes:
#address-cells = <2>;
#size-cells = <2>;
ranges;
- status = "disabled";
usbdrd_dwc3_1: dwc3@fe900000 {
compatible = "snps,dwc3";
reg = <0x0 0xfe900000 0x0 0x100000>;
interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
dr_mode = "otg";
- status = "disabled";
};
};
diff --git a/Documentation/devicetree/bindings/usb/usb-device.txt b/Documentation/devicetree/bindings/usb/usb-device.txt
index 1c35e7b665e1..ce02cebac26a 100644
--- a/Documentation/devicetree/bindings/usb/usb-device.txt
+++ b/Documentation/devicetree/bindings/usb/usb-device.txt
@@ -2,7 +2,7 @@ Generic USB Device Properties
Usually, we only use device tree for hard wired USB device.
The reference binding doc is from:
-http://www.firmware.org/1275/bindings/usb/usb-1_0.ps
+http://www.devicetree.org/open-firmware/bindings/usb/usb-1_0.ps
Required properties:
- compatible: usbVID,PID. The textual representation of VID, PID shall
@@ -16,7 +16,6 @@ Required properties:
Example:
&usb1 {
- status = "okay";
#address-cells = <1>;
#size-cells = <0>;
diff --git a/Documentation/devicetree/bindings/usb/usb-ohci.txt b/Documentation/devicetree/bindings/usb/usb-ohci.txt
index 9df456968596..e8766b08c93b 100644
--- a/Documentation/devicetree/bindings/usb/usb-ohci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-ohci.txt
@@ -10,6 +10,7 @@ Optional properties:
- big-endian-desc : boolean, set this for hcds with big-endian descriptors
- big-endian : boolean, for hcds with big-endian-regs + big-endian-desc
- no-big-frame-no : boolean, set if frame_no lives in bits [15:0] of HCCA
+- remote-wakeup-connected: remote wakeup is wired on the platform
- num-ports : u32, to override the detected port count
- clocks : a list of phandle + clock specifier pairs
- phys : phandle + phy specifier pair
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index c03d20140366..1afd298eddd7 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -3,11 +3,13 @@ Device tree binding vendor prefix registry. Keep list in alphabetical order.
This isn't an exhaustive list, but you should add new prefixes to it before
using them to avoid name-space collisions.
-abcn Abracon Corporation
abilis Abilis Systems
+abracon Abracon Corporation
+actions Actions Semiconductor Co., Ltd.
active-semi Active-Semi International Inc
ad Avionic Design GmbH
adapteva Adapteva, Inc.
+adaptrum Adaptrum, Inc.
adh AD Holdings Plc.
adi Analog Devices, Inc.
advantech Advantech Corporation
@@ -28,6 +30,7 @@ andestech Andes Technology Corporation
apm Applied Micro Circuits Corporation (APM)
aptina Aptina Imaging
arasan Arasan Chip Systems
+arctic Arctic Sand
aries Aries Embedded GmbH
arm ARM Ltd.
armadeus ARMadeus Systems SARL
@@ -44,6 +47,8 @@ avia avia semiconductor
avic Shanghai AVIC Optoelectronics Co., Ltd.
axentia Axentia Technologies AB
axis Axis Communications AB
+bananapi BIPAI KEJI LIMITED
+bhf Beckhoff Automation GmbH & Co. KG
boe BOE Technology Group Co., Ltd.
bosch Bosch Sensortec GmbH
boundary Boundary Devices Inc.
@@ -85,6 +90,7 @@ dlg Dialog Semiconductor
dlink D-Link Corporation
dmo Data Modul AG
domintech Domintech Co., Ltd.
+dongwoon Dongwoon Anatech
dptechnics DPTechnics
dragino Dragino Technology Co., Limited
ea Embedded Artists AB
@@ -158,6 +164,8 @@ iom Iomega Corporation
isee ISEE 2007 S.L.
isil Intersil
issi Integrated Silicon Solutions Inc.
+itead ITEAD Intelligent Systems Co.Ltd
+iwave iWave Systems Technologies Pvt. Ltd.
jdi Japan Display Inc.
jedec JEDEC Solid State Technology Association
karo Ka-Ro electronics GmbH
@@ -165,15 +173,19 @@ keithkoep Keith & Koep GmbH
keymile Keymile GmbH
khadas Khadas
kinetic Kinetic Technologies
+kingnovel Kingnovel Technology Co., Ltd.
kosagi Sutajio Ko-Usagi PTE Ltd.
kyo Kyocera Corporation
lacie LaCie
lantiq Lantiq Semiconductor
+lattice Lattice Semiconductor
lego LEGO Systems A/S
lenovo Lenovo Group Ltd.
lg LG Corporation
+libretech Shenzhen Libre Technology Co., Ltd
licheepi Lichee Pi
linaro Linaro Limited
+linksys Belkin International, Inc. (Linksys)
linux Linux-specific binding
lltc Linear Technology Corporation
lsi LSI Corp. (LSI Logic)
@@ -187,6 +199,7 @@ mediatek MediaTek Inc.
megachips MegaChips
melexis Melexis N.V.
melfas MELFAS Inc.
+mellanox Mellanox Technologies
memsic MEMSIC Inc.
merrii Merrii Technology Co., Ltd.
micrel Micrel Inc.
@@ -198,7 +211,7 @@ miramems MiraMEMS Sensing Technology Co., Ltd.
mitsubishi Mitsubishi Electric Corporation
mosaixtech Mosaix Technologies, Inc.
motorola Motorola, Inc.
-moxa Moxa
+moxa Moxa Inc.
mpl MPL AG
mqmaker mqmaker Inc.
msi Micro-Star International Co. Ltd.
@@ -219,6 +232,7 @@ nexbox Nexbox
newhaven Newhaven Display International
ni National Instruments
nintendo Nintendo
+nlt NLT Technologies, Ltd.
nokia Nokia
nordic Nordic Semiconductor
nuvoton Nuvoton Technology Corporation
@@ -240,6 +254,7 @@ oxsemi Oxford Semiconductor, Ltd.
panasonic Panasonic Corporation
parade Parade Technologies Inc.
pericom Pericom Technology Inc.
+pervasive Pervasive Displays, Inc.
phytec PHYTEC Messtechnik GmbH
picochip Picochip Ltd
pine64 Pine64
@@ -266,8 +281,10 @@ renesas Renesas Electronics Corporation
richtek Richtek Technology Corporation
ricoh Ricoh Co. Ltd.
rikomagic Rikomagic Tech Corp. Ltd
+riscv RISC-V Foundation
rockchip Fuzhou Rockchip Electronics Co., Ltd
rohm ROHM Semiconductor Co., Ltd
+roofull Shenzhen Roofull Technology Co, Ltd
samsung Samsung Semiconductor
samtec Samtec/Softing company
sandisk Sandisk Corporation
@@ -276,6 +293,7 @@ schindler Schindler
seagate Seagate Technology PLC
semtech Semtech Corporation
sensirion Sensirion AG
+sff Small Form Factor Committee
sgx SGX Sensortech
sharp Sharp Corporation
si-en Si-En Technology Ltd.
@@ -330,7 +348,9 @@ tpo TPO
tronfy Tronfy
tronsmart Tronsmart
truly Truly Semiconductors Limited
+tsd Theobroma Systems Design und Consulting GmbH
tyan Tyan Computer Corporation
+ucrobotics uCRobotics
udoo Udoo
uniwest United Western Technologies Corp (UniWest)
upisemi uPI Semiconductor Corp.
@@ -341,6 +361,7 @@ variscite Variscite Ltd.
via VIA Technologies, Inc.
virtio Virtual I/O Device Specification, developed by the OASIS consortium
vivante Vivante Corporation
+vocore VoCore Studio
voipac Voipac Technologies s.r.o.
wd Western Digital Corp.
wetek WeTek Electronics, limited.
@@ -356,6 +377,7 @@ xlnx Xilinx
xunlong Shenzhen Xunlong Software CO.,Limited
zarlink Zarlink Semiconductor
zeitec ZEITEC Semiconductor Co., LTD.
+zidoo Shenzhen Zidoo Technology Co., Ltd.
zii Zodiac Inflight Innovations
zte ZTE Corp.
zyxel ZyXEL Communications Corp.
diff --git a/Documentation/devicetree/bindings/w1/fsl-imx-owire.txt b/Documentation/devicetree/bindings/w1/fsl-imx-owire.txt
index ecf42c07684d..cbaa6467ab2c 100644
--- a/Documentation/devicetree/bindings/w1/fsl-imx-owire.txt
+++ b/Documentation/devicetree/bindings/w1/fsl-imx-owire.txt
@@ -15,5 +15,4 @@ owire: owire@63fa4000 {
compatible = "fsl,imx53-owire", "fsl,imx21-owire";
reg = <0x63fa4000 0x4000>;
clocks = <&clks 159>;
- status = "disabled";
};
diff --git a/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt b/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt
index c5e74d7b4406..c5077a1f5cb3 100644
--- a/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt
@@ -8,9 +8,49 @@ Required properties:
- reg: physical base address of the controller and length of memory mapped
region
+Optional properties:
+
+ - aspeed,reset-type = "cpu|soc|system|none"
+
+ Reset behavior - Whenever a timeout occurs the watchdog can be programmed
+ to generate one of three different, mutually exclusive, types of resets.
+
+ Type "none" can be specified to indicate that no resets are to be done.
+ This is useful in situations where another watchdog engine on chip is
+ to perform the reset.
+
+ If 'aspeed,reset-type=' is not specfied the default is to enable system
+ reset.
+
+ Reset types:
+
+ - cpu: Reset CPU on watchdog timeout
+
+ - soc: Reset 'System on Chip' on watchdog timeout
+
+ - system: Reset system on watchdog timeout
+
+ - none: No reset is performed on timeout. Assumes another watchdog
+ engine is responsible for this.
+
+ - aspeed,alt-boot: If property is present then boot from alternate block.
+ - aspeed,external-signal: If property is present then signal is sent to
+ external reset counter (only WDT1 and WDT2). If not
+ specified no external signal is sent.
+ - aspeed,ext-pulse-duration: External signal pulse duration in microseconds
+
+Optional properties for AST2500-compatible watchdogs:
+ - aspeed,ext-push-pull: If aspeed,external-signal is present, set the pin's
+ drive type to push-pull. The default is open-drain.
+ - aspeed,ext-active-high: If aspeed,external-signal is present and and the pin
+ is configured as push-pull, then set the pulse
+ polarity to active-high. The default is active-low.
+
Example:
wdt1: watchdog@1e785000 {
compatible = "aspeed,ast2400-wdt";
reg = <0x1e785000 0x1c>;
+ aspeed,reset-type = "system";
+ aspeed,external-signal;
};
diff --git a/Documentation/devicetree/bindings/watchdog/atmel-sama5d4-wdt.txt b/Documentation/devicetree/bindings/watchdog/atmel-sama5d4-wdt.txt
index f7cc7c060910..4fec1e3725b4 100644
--- a/Documentation/devicetree/bindings/watchdog/atmel-sama5d4-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/atmel-sama5d4-wdt.txt
@@ -31,5 +31,4 @@ Example:
atmel,watchdog-type = "hardware";
atmel,dbg-halt;
atmel,idle-halt;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt b/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt
index 86fa6de1019b..711a880b3d3b 100644
--- a/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt
@@ -48,5 +48,4 @@ Example:
atmel,idle-halt;
atmel,max-heartbeat-sec = <16>;
atmel,min-heartbeat-sec = <0>;
- status = "okay";
};
diff --git a/Documentation/devicetree/bindings/watchdog/da9062-wdt.txt b/Documentation/devicetree/bindings/watchdog/da9062-wdt.txt
new file mode 100644
index 000000000000..b935b526d2f3
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/da9062-wdt.txt
@@ -0,0 +1,23 @@
+* Dialog Semiconductor DA9062/61 Watchdog Timer
+
+Required properties:
+
+- compatible: should be one of the following valid compatible string lines:
+ "dlg,da9061-watchdog", "dlg,da9062-watchdog"
+ "dlg,da9062-watchdog"
+
+Example: DA9062
+
+ pmic0: da9062@58 {
+ watchdog {
+ compatible = "dlg,da9062-watchdog";
+ };
+ };
+
+Example: DA9061 using a fall-back compatible for the DA9062 watchdog driver
+
+ pmic0: da9061@58 {
+ watchdog {
+ compatible = "dlg,da9061-watchdog", "dlg,da9062-watchdog";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/watchdog/dw_wdt.txt b/Documentation/devicetree/bindings/watchdog/dw_wdt.txt
index 08e16f684f2d..eb0914420c7c 100644
--- a/Documentation/devicetree/bindings/watchdog/dw_wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/dw_wdt.txt
@@ -10,6 +10,8 @@ Required Properties:
Optional Properties:
- interrupts : The interrupt used for the watchdog timeout warning.
+- resets : phandle pointing to the system reset controller with
+ line index for the watchdog.
Example:
@@ -18,4 +20,5 @@ Example:
reg = <0xffd02000 0x1000>;
interrupts = <0 171 4>;
clocks = <&per_base_clk>;
+ resets = <&rst WDT0_RESET>;
};
diff --git a/Documentation/devicetree/bindings/watchdog/lantiq-wdt.txt b/Documentation/devicetree/bindings/watchdog/lantiq-wdt.txt
new file mode 100644
index 000000000000..18d4d8302702
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/lantiq-wdt.txt
@@ -0,0 +1,24 @@
+Lantiq WTD watchdog binding
+============================
+
+This describes the binding of the Lantiq watchdog driver.
+
+-------------------------------------------------------------------------------
+Required properties:
+- compatible : Should be one of
+ "lantiq,wdt"
+ "lantiq,xrx100-wdt"
+ "lantiq,xrx200-wdt", "lantiq,xrx100-wdt"
+ "lantiq,falcon-wdt"
+- reg : Address of the watchdog block
+- lantiq,rcu : A phandle to the RCU syscon (required for
+ "lantiq,falcon-wdt" and "lantiq,xrx100-wdt")
+
+-------------------------------------------------------------------------------
+Example for the watchdog on the xRX200 SoCs:
+ watchdog@803f0 {
+ compatible = "lantiq,xrx200-wdt", "lantiq,xrx100-wdt";
+ reg = <0x803f0 0x10>;
+
+ lantiq,rcu = <&rcu0>;
+ };
diff --git a/Documentation/devicetree/bindings/watchdog/marvel.txt b/Documentation/devicetree/bindings/watchdog/marvel.txt
index 858ed9221ac4..c1b67a78f00c 100644
--- a/Documentation/devicetree/bindings/watchdog/marvel.txt
+++ b/Documentation/devicetree/bindings/watchdog/marvel.txt
@@ -41,6 +41,5 @@ Example:
reg = <0x20300 0x28>, <0x20108 0x4>;
interrupts = <3>;
timeout-sec = <10>;
- status = "okay";
clocks = <&gate_clk 7>;
};
diff --git a/Documentation/devicetree/bindings/watchdog/meson-wdt.txt b/Documentation/devicetree/bindings/watchdog/meson-wdt.txt
index ae70185d96e6..8a6d84cb36c9 100644
--- a/Documentation/devicetree/bindings/watchdog/meson-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/meson-wdt.txt
@@ -2,7 +2,11 @@ Meson SoCs Watchdog timer
Required properties:
-- compatible : should be "amlogic,meson6-wdt" or "amlogic,meson8b-wdt"
+- compatible : depending on the SoC this should be one of:
+ "amlogic,meson6-wdt" on Meson6 SoCs
+ "amlogic,meson8-wdt" and "amlogic,meson6-wdt" on Meson8 SoCs
+ "amlogic,meson8b-wdt" on Meson8b SoCs
+ "amlogic,meson8m2-wdt" and "amlogic,meson8b-wdt" on Meson8m2 SoCs
- reg : Specifies base physical address and size of the registers.
Example:
diff --git a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
index 6a00939a059a..235de0683bb6 100644
--- a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
@@ -3,9 +3,11 @@ Mediatek SoCs Watchdog timer
Required properties:
- compatible should contain:
- * "mediatek,mt2701-wdt" for MT2701 compatible watchdog timers
- * "mediatek,mt6589-wdt" for all compatible watchdog timers (MT2701,
- MT6589)
+ "mediatek,mt2701-wdt", "mediatek,mt6589-wdt": for MT2701
+ "mediatek,mt6589-wdt": for MT6589
+ "mediatek,mt6797-wdt", "mediatek,mt6589-wdt": for MT6797
+ "mediatek,mt7622-wdt", "mediatek,mt6589-wdt": for MT7622
+ "mediatek,mt7623-wdt", "mediatek,mt6589-wdt": for MT7623
- reg : Specifies base physical address and size of the registers.
diff --git a/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt b/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt
index da24e3133417..bf6d1ca58af7 100644
--- a/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt
@@ -2,10 +2,12 @@ Renesas Watchdog Timer (WDT) Controller
Required properties:
- compatible : Should be "renesas,<soctype>-wdt", and
- "renesas,rcar-gen3-wdt" as fallback.
+ "renesas,rcar-gen3-wdt" or "renesas,rza-wdt" as fallback.
Examples with soctypes are:
- "renesas,r8a7795-wdt" (R-Car H3)
- "renesas,r8a7796-wdt" (R-Car M3-W)
+ - "renesas,r8a77995-wdt" (R-Car D3)
+ - "renesas,r7s72100-wdt" (RZ/A1)
When compatible with the generic version, nodes must list the SoC-specific
version corresponding to the platform first, followed by the generic
@@ -17,6 +19,7 @@ Required properties:
Optional properties:
- timeout-sec : Contains the watchdog timeout in seconds
- power-domains : the power domain the WDT belongs to
+- interrupts: Some WDTs have an interrupt when used in interval timer mode
Examples:
diff --git a/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt b/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt
new file mode 100644
index 000000000000..cc13b10a3f82
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt
@@ -0,0 +1,19 @@
+STM32 Independent WatchDoG (IWDG)
+---------------------------------
+
+Required properties:
+- compatible: "st,stm32-iwdg"
+- reg: physical base address and length of the registers set for the device
+- clocks: must contain a single entry describing the clock input
+
+Optional Properties:
+- timeout-sec: Watchdog timeout value in seconds.
+
+Example:
+
+iwdg: watchdog@40003000 {
+ compatible = "st,stm32-iwdg";
+ reg = <0x40003000 0x400>;
+ clocks = <&clk_lsi>;
+ timeout-sec = <32>;
+};
diff --git a/Documentation/devicetree/bindings/watchdog/uniphier-wdt.txt b/Documentation/devicetree/bindings/watchdog/uniphier-wdt.txt
new file mode 100644
index 000000000000..bf6337546dd1
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/uniphier-wdt.txt
@@ -0,0 +1,20 @@
+UniPhier watchdog timer controller
+
+This UniPhier watchdog timer controller must be under sysctrl node.
+
+Required properties:
+- compatible: should be "socionext,uniphier-wdt"
+
+Example:
+
+ sysctrl@61840000 {
+ compatible = "socionext,uniphier-ld11-sysctrl",
+ "simple-mfd", "syscon";
+ reg = <0x61840000 0x4000>;
+
+ watchdog {
+ compatible = "socionext,uniphier-wdt";
+ }
+
+ other nodes ...
+ };
diff --git a/Documentation/devicetree/bindings/xilinx.txt b/Documentation/devicetree/bindings/xilinx.txt
index 299d0923537b..1d11b9002ef8 100644
--- a/Documentation/devicetree/bindings/xilinx.txt
+++ b/Documentation/devicetree/bindings/xilinx.txt
@@ -281,6 +281,8 @@
capabilities of the underlying ICAP hardware
differ between different families. May be
'virtex2p', 'virtex4', or 'virtex5'.
+ - compatible : should contain "xlnx,xps-hwicap-1.00.a" or
+ "xlnx,opb-hwicap-1.00.b".
vi) Xilinx Uart 16550
diff --git a/Documentation/devicetree/booting-without-of.txt b/Documentation/devicetree/booting-without-of.txt
index 280d283304bb..417f91110010 100644
--- a/Documentation/devicetree/booting-without-of.txt
+++ b/Documentation/devicetree/booting-without-of.txt
@@ -1282,7 +1282,7 @@ hierarchy and routing of interrupts in the hardware.
The interrupt tree model is fully described in the
document "Open Firmware Recommended Practice: Interrupt
Mapping Version 0.9". The document is available at:
-<http://www.openfirmware.org/ofwg/practice/>
+<http://www.devicetree.org/open-firmware/practice/>
1) interrupts property
----------------------
@@ -1413,7 +1413,7 @@ Optional property:
from DMA operations originating from the bus. It provides a means of
defining a mapping or translation between the physical address space of
the bus and the physical address space of the parent of the bus.
- (for more information see ePAPR specification)
+ (for more information see the Devicetree Specification)
* DMA Bus child
Optional property:
diff --git a/Documentation/devicetree/overlay-notes.txt b/Documentation/devicetree/overlay-notes.txt
index d418a6ce9812..eb7f2685fda1 100644
--- a/Documentation/devicetree/overlay-notes.txt
+++ b/Documentation/devicetree/overlay-notes.txt
@@ -3,8 +3,7 @@ Device Tree Overlay Notes
This document describes the implementation of the in-kernel
device tree overlay functionality residing in drivers/of/overlay.c and is a
-companion document to Documentation/devicetree/dt-object-internal.txt[1] &
-Documentation/devicetree/dynamic-resolution-notes.txt[2]
+companion document to Documentation/devicetree/dynamic-resolution-notes.txt[1]
How overlays work
-----------------
@@ -16,8 +15,7 @@ Since the kernel mainly deals with devices, any new device node that result
in an active device should have it created while if the device node is either
disabled or removed all together, the affected device should be deregistered.
-Lets take an example where we have a foo board with the following base tree
-which is taken from [1].
+Lets take an example where we have a foo board with the following base tree:
---- foo.dts -----------------------------------------------------------------
/* FOO platform */
@@ -36,7 +34,7 @@ which is taken from [1].
};
---- foo.dts -----------------------------------------------------------------
-The overlay bar.dts, when loaded (and resolved as described in [2]) should
+The overlay bar.dts, when loaded (and resolved as described in [1]) should
---- bar.dts -----------------------------------------------------------------
/plugin/; /* allow undefined label references and record them */
diff --git a/Documentation/devicetree/usage-model.txt b/Documentation/devicetree/usage-model.txt
index 2b6b3d3f0388..33a8aaac02a8 100644
--- a/Documentation/devicetree/usage-model.txt
+++ b/Documentation/devicetree/usage-model.txt
@@ -387,7 +387,7 @@ static void __init harmony_init_machine(void)
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
-"simple-bus" is defined in the ePAPR 1.0 specification as a property
+"simple-bus" is defined in the Devicetree Specification as a property
meaning a simple memory mapped bus, so the of_platform_populate() code
could be written to just assume simple-bus compatible nodes will
always be traversed. However, we pass it in as an argument so that
diff --git a/Documentation/digsig.txt b/Documentation/digsig.txt
index 3f682889068b..f6a8902d3ef7 100644
--- a/Documentation/digsig.txt
+++ b/Documentation/digsig.txt
@@ -1,13 +1,20 @@
+==================================
Digital Signature Verification API
+==================================
-CONTENTS
+:Author: Dmitry Kasatkin
+:Date: 06.10.2011
-1. Introduction
-2. API
-3. User-space utilities
+.. CONTENTS
-1. Introduction
+ 1. Introduction
+ 2. API
+ 3. User-space utilities
+
+
+Introduction
+============
Digital signature verification API provides a method to verify digital signature.
Currently digital signatures are used by the IMA/EVM integrity protection subsystem.
@@ -17,25 +24,25 @@ GnuPG multi-precision integers (MPI) library. The kernel port provides
memory allocation errors handling, has been refactored according to kernel
coding style, and checkpatch.pl reported errors and warnings have been fixed.
-Public key and signature consist of header and MPIs.
-
-struct pubkey_hdr {
- uint8_t version; /* key format version */
- time_t timestamp; /* key made, always 0 for now */
- uint8_t algo;
- uint8_t nmpi;
- char mpi[0];
-} __packed;
-
-struct signature_hdr {
- uint8_t version; /* signature format version */
- time_t timestamp; /* signature made */
- uint8_t algo;
- uint8_t hash;
- uint8_t keyid[8];
- uint8_t nmpi;
- char mpi[0];
-} __packed;
+Public key and signature consist of header and MPIs::
+
+ struct pubkey_hdr {
+ uint8_t version; /* key format version */
+ time_t timestamp; /* key made, always 0 for now */
+ uint8_t algo;
+ uint8_t nmpi;
+ char mpi[0];
+ } __packed;
+
+ struct signature_hdr {
+ uint8_t version; /* signature format version */
+ time_t timestamp; /* signature made */
+ uint8_t algo;
+ uint8_t hash;
+ uint8_t keyid[8];
+ uint8_t nmpi;
+ char mpi[0];
+ } __packed;
keyid equals to SHA1[12-19] over the total key content.
Signature header is used as an input to generate a signature.
@@ -43,31 +50,33 @@ Such approach insures that key or signature header could not be changed.
It protects timestamp from been changed and can be used for rollback
protection.
-2. API
+API
+===
-API currently includes only 1 function:
+API currently includes only 1 function::
digsig_verify() - digital signature verification with public key
-/**
- * digsig_verify() - digital signature verification with public key
- * @keyring: keyring to search key in
- * @sig: digital signature
- * @sigen: length of the signature
- * @data: data
- * @datalen: length of the data
- * @return: 0 on success, -EINVAL otherwise
- *
- * Verifies data integrity against digital signature.
- * Currently only RSA is supported.
- * Normally hash of the content is used as a data for this function.
- *
- */
-int digsig_verify(struct key *keyring, const char *sig, int siglen,
- const char *data, int datalen);
-
-3. User-space utilities
+ /**
+ * digsig_verify() - digital signature verification with public key
+ * @keyring: keyring to search key in
+ * @sig: digital signature
+ * @sigen: length of the signature
+ * @data: data
+ * @datalen: length of the data
+ * @return: 0 on success, -EINVAL otherwise
+ *
+ * Verifies data integrity against digital signature.
+ * Currently only RSA is supported.
+ * Normally hash of the content is used as a data for this function.
+ *
+ */
+ int digsig_verify(struct key *keyring, const char *sig, int siglen,
+ const char *data, int datalen);
+
+User-space utilities
+====================
The signing and key management utilities evm-utils provide functionality
to generate signatures, to load keys into the kernel keyring.
@@ -75,22 +84,18 @@ Keys can be in PEM or converted to the kernel format.
When the key is added to the kernel keyring, the keyid defines the name
of the key: 5D2B05FC633EE3E8 in the example bellow.
-Here is example output of the keyctl utility.
-
-$ keyctl show
-Session Keyring
- -3 --alswrv 0 0 keyring: _ses
-603976250 --alswrv 0 -1 \_ keyring: _uid.0
-817777377 --alswrv 0 0 \_ user: kmk
-891974900 --alswrv 0 0 \_ encrypted: evm-key
-170323636 --alswrv 0 0 \_ keyring: _module
-548221616 --alswrv 0 0 \_ keyring: _ima
-128198054 --alswrv 0 0 \_ keyring: _evm
-
-$ keyctl list 128198054
-1 key in keyring:
-620789745: --alswrv 0 0 user: 5D2B05FC633EE3E8
-
-
-Dmitry Kasatkin
-06.10.2011
+Here is example output of the keyctl utility::
+
+ $ keyctl show
+ Session Keyring
+ -3 --alswrv 0 0 keyring: _ses
+ 603976250 --alswrv 0 -1 \_ keyring: _uid.0
+ 817777377 --alswrv 0 0 \_ user: kmk
+ 891974900 --alswrv 0 0 \_ encrypted: evm-key
+ 170323636 --alswrv 0 0 \_ keyring: _module
+ 548221616 --alswrv 0 0 \_ keyring: _ima
+ 128198054 --alswrv 0 0 \_ keyring: _evm
+
+ $ keyctl list 128198054
+ 1 key in keyring:
+ 620789745: --alswrv 0 0 user: 5D2B05FC633EE3E8
diff --git a/Documentation/dmaengine/provider.txt b/Documentation/dmaengine/provider.txt
index e33bc1c8ed2c..5dbe054a40ad 100644
--- a/Documentation/dmaengine/provider.txt
+++ b/Documentation/dmaengine/provider.txt
@@ -181,13 +181,6 @@ Currently, the types available are:
- Used by the client drivers to register a callback that will be
called on a regular basis through the DMA controller interrupt
- * DMA_SG
- - The device supports memory to memory scatter-gather
- transfers.
- - Even though a plain memcpy can look like a particular case of a
- scatter-gather transfer, with a single chunk to transfer, it's a
- distinct transaction type in the mem2mem transfers case
-
* DMA_PRIVATE
- The devices only supports slave transfers, and as such isn't
available for async transfers.
@@ -395,6 +388,13 @@ where to put them)
when DMA_CTRL_REUSE is already set
- Terminating the channel
+ * DMA_PREP_CMD
+ - If set, the client driver tells DMA controller that passed data in DMA
+ API is command data.
+ - Interpretation of command data is DMA controller specific. It can be
+ used for issuing commands to other peripherals/register reads/register
+ writes for which the descriptor should be in different format from
+ normal data descriptors.
General Design Notes
--------------------
diff --git a/Documentation/doc-guide/docbook.rst b/Documentation/doc-guide/docbook.rst
deleted file mode 100644
index d8bf04308b43..000000000000
--- a/Documentation/doc-guide/docbook.rst
+++ /dev/null
@@ -1,90 +0,0 @@
-DocBook XML [DEPRECATED]
-========================
-
-.. attention::
-
- This section describes the deprecated DocBook XML toolchain. Please do not
- create new DocBook XML template files. Please consider converting existing
- DocBook XML templates files to Sphinx/reStructuredText.
-
-Converting DocBook to Sphinx
-----------------------------
-
-Over time, we expect all of the documents under ``Documentation/DocBook`` to be
-converted to Sphinx and reStructuredText. For most DocBook XML documents, a good
-enough solution is to use the simple ``Documentation/sphinx/tmplcvt`` script,
-which uses ``pandoc`` under the hood. For example::
-
- $ cd Documentation/sphinx
- $ ./tmplcvt ../DocBook/in.tmpl ../out.rst
-
-Then edit the resulting rst files to fix any remaining issues, and add the
-document in the ``toctree`` in ``Documentation/index.rst``.
-
-Components of the kernel-doc system
------------------------------------
-
-Many places in the source tree have extractable documentation in the form of
-block comments above functions. The components of this system are:
-
-- ``scripts/kernel-doc``
-
- This is a perl script that hunts for the block comments and can mark them up
- directly into reStructuredText, DocBook, man, text, and HTML. (No, not
- texinfo.)
-
-- ``Documentation/DocBook/*.tmpl``
-
- These are XML template files, which are normal XML files with special
- place-holders for where the extracted documentation should go.
-
-- ``scripts/docproc.c``
-
- This is a program for converting XML template files into XML files. When a
- file is referenced it is searched for symbols exported (EXPORT_SYMBOL), to be
- able to distinguish between internal and external functions.
-
- It invokes kernel-doc, giving it the list of functions that are to be
- documented.
-
- Additionally it is used to scan the XML template files to locate all the files
- referenced herein. This is used to generate dependency information as used by
- make.
-
-- ``Makefile``
-
- The targets 'xmldocs', 'psdocs', 'pdfdocs', and 'htmldocs' are used to build
- DocBook XML files, PostScript files, PDF files, and html files in
- Documentation/DocBook. The older target 'sgmldocs' is equivalent to 'xmldocs'.
-
-- ``Documentation/DocBook/Makefile``
-
- This is where C files are associated with SGML templates.
-
-How to use kernel-doc comments in DocBook XML template files
-------------------------------------------------------------
-
-DocBook XML template files (\*.tmpl) are like normal XML files, except that they
-can contain escape sequences where extracted documentation should be inserted.
-
-``!E<filename>`` is replaced by the documentation, in ``<filename>``, for
-functions that are exported using ``EXPORT_SYMBOL``: the function list is
-collected from files listed in ``Documentation/DocBook/Makefile``.
-
-``!I<filename>`` is replaced by the documentation for functions that are **not**
-exported using ``EXPORT_SYMBOL``.
-
-``!D<filename>`` is used to name additional files to search for functions
-exported using ``EXPORT_SYMBOL``.
-
-``!F<filename> <function [functions...]>`` is replaced by the documentation, in
-``<filename>``, for the functions listed.
-
-``!P<filename> <section title>`` is replaced by the contents of the ``DOC:``
-section titled ``<section title>`` from ``<filename>``. Spaces are allowed in
-``<section title>``; do not quote the ``<section title>``.
-
-``!C<filename>`` is replaced by nothing, but makes the tools check that all DOC:
-sections and documented functions, symbols, etc. are used. This makes sense to
-use when you use ``!F`` or ``!P`` only and want to verify that all documentation
-is included.
diff --git a/Documentation/doc-guide/index.rst b/Documentation/doc-guide/index.rst
index 6fff4024606e..a7f95d7d3a63 100644
--- a/Documentation/doc-guide/index.rst
+++ b/Documentation/doc-guide/index.rst
@@ -10,7 +10,6 @@ How to write kernel documentation
sphinx.rst
kernel-doc.rst
parse-headers.rst
- docbook.rst
.. only:: subproject and html
diff --git a/Documentation/doc-guide/kernel-doc.rst b/Documentation/doc-guide/kernel-doc.rst
index b32e4813ff6f..b24854b5d6be 100644
--- a/Documentation/doc-guide/kernel-doc.rst
+++ b/Documentation/doc-guide/kernel-doc.rst
@@ -149,6 +149,16 @@ Domain`_ references.
``%CONST``
Name of a constant. (No cross-referencing, just formatting.)
+````literal````
+ A literal block that should be handled as-is. The output will use a
+ ``monospaced font``.
+
+ Useful if you need to use special characters that would otherwise have some
+ meaning either by kernel-doc script of by reStructuredText.
+
+ This is particularly useful if you need to use things like ``%ph`` inside
+ a function description.
+
``$ENVVAR``
Name of an environment variable. (No cross-referencing, just formatting.)
diff --git a/Documentation/doc-guide/sphinx.rst b/Documentation/doc-guide/sphinx.rst
index 731334de3efd..a2417633fdd8 100644
--- a/Documentation/doc-guide/sphinx.rst
+++ b/Documentation/doc-guide/sphinx.rst
@@ -15,15 +15,114 @@ are used to describe the functions and types and design of the code. The
kernel-doc comments have some special structure and formatting, but beyond that
they are also treated as reStructuredText.
-There is also the deprecated DocBook toolchain to generate documentation from
-DocBook XML template files under ``Documentation/DocBook``. The DocBook files
-are to be converted to reStructuredText, and the toolchain is slated to be
-removed.
-
Finally, there are thousands of plain text documentation files scattered around
``Documentation``. Some of these will likely be converted to reStructuredText
over time, but the bulk of them will remain in plain text.
+.. _sphinx_install:
+
+Sphinx Install
+==============
+
+The ReST markups currently used by the Documentation/ files are meant to be
+built with ``Sphinx`` version 1.3 or upper. If you're desiring to build
+PDF outputs, it is recommended to use version 1.4.6 or upper.
+
+There's a script that checks for the Spinx requirements. Please see
+:ref:`sphinx-pre-install` for further details.
+
+Most distributions are shipped with Sphinx, but its toolchain is fragile,
+and it is not uncommon that upgrading it or some other Python packages
+on your machine would cause the documentation build to break.
+
+A way to get rid of that is to use a different version than the one shipped
+on your distributions. In order to do that, it is recommended to install
+Sphinx inside a virtual environment, using ``virtualenv-3``
+or ``virtualenv``, depending on how your distribution packaged Python 3.
+
+.. note::
+
+ #) Sphinx versions below 1.5 don't work properly with Python's
+ docutils version 0.13.1 or upper. So, if you're willing to use
+ those versions, you should run ``pip install 'docutils==0.12'``.
+
+ #) It is recommended to use the RTD theme for html output. Depending
+ on the Sphinx version, it should be installed in separate,
+ with ``pip install sphinx_rtd_theme``.
+
+ #) Some ReST pages contain math expressions. Due to the way Sphinx work,
+ those expressions are written using LaTeX notation. It needs texlive
+ installed with amdfonts and amsmath in order to evaluate them.
+
+In summary, if you want to install Sphinx version 1.4.9, you should do::
+
+ $ virtualenv sphinx_1.4
+ $ . sphinx_1.4/bin/activate
+ (sphinx_1.4) $ pip install -r Documentation/sphinx/requirements.txt
+
+After running ``. sphinx_1.4/bin/activate``, the prompt will change,
+in order to indicate that you're using the new environment. If you
+open a new shell, you need to rerun this command to enter again at
+the virtual environment before building the documentation.
+
+Image output
+------------
+
+The kernel documentation build system contains an extension that
+handles images on both GraphViz and SVG formats (see
+:ref:`sphinx_kfigure`).
+
+For it to work, you need to install both GraphViz and ImageMagick
+packages. If those packages are not installed, the build system will
+still build the documentation, but won't include any images at the
+output.
+
+PDF and LaTeX builds
+--------------------
+
+Such builds are currently supported only with Sphinx versions 1.4 and upper.
+
+For PDF and LaTeX output, you'll also need ``XeLaTeX`` version 3.14159265.
+
+Depending on the distribution, you may also need to install a series of
+``texlive`` packages that provide the minimal set of functionalities
+required for ``XeLaTeX`` to work.
+
+.. _sphinx-pre-install:
+
+Checking for Sphinx dependencies
+--------------------------------
+
+There's a script that automatically check for Sphinx dependencies. If it can
+recognize your distribution, it will also give a hint about the install
+command line options for your distro::
+
+ $ ./scripts/sphinx-pre-install
+ Checking if the needed tools for Fedora release 26 (Twenty Six) are available
+ Warning: better to also install "texlive-luatex85".
+ You should run:
+
+ sudo dnf install -y texlive-luatex85
+ /usr/bin/virtualenv sphinx_1.4
+ . sphinx_1.4/bin/activate
+ pip install -r Documentation/sphinx/requirements.txt
+
+ Can't build as 1 mandatory dependency is missing at ./scripts/sphinx-pre-install line 468.
+
+By default, it checks all the requirements for both html and PDF, including
+the requirements for images, math expressions and LaTeX build, and assumes
+that a virtual Python environment will be used. The ones needed for html
+builds are assumed to be mandatory; the others to be optional.
+
+It supports two optional parameters:
+
+``--no-pdf``
+ Disable checks for PDF;
+
+``--no-virtualenv``
+ Use OS packaging for Sphinx instead of Python virtual environment.
+
+
Sphinx Build
============
@@ -123,7 +222,7 @@ Here are some specific guidelines for the kernel documentation:
the C domain
------------
-The `Sphinx C Domain`_ (name c) is suited for documentation of C API. E.g. a
+The **Sphinx C Domain** (name c) is suited for documentation of C API. E.g. a
function prototype:
.. code-block:: rst
@@ -234,6 +333,7 @@ Rendered as:
- column 3
+.. _sphinx_kfigure:
Figures & Images
================
diff --git a/Documentation/dontdiff b/Documentation/dontdiff
index 77b92221f951..2228fcc8e29f 100644
--- a/Documentation/dontdiff
+++ b/Documentation/dontdiff
@@ -118,7 +118,6 @@ defkeymap.c
devlist.h*
devicetable-offsets.h
dnotify_test
-docproc
dslm
dtc
elf2ecoff
@@ -207,6 +206,8 @@ r200_reg_safe.h
r300_reg_safe.h
r420_reg_safe.h
r600_reg_safe.h
+randomize_layout_hash.h
+randomize_layout_seed.h
recordmcount
relocs
rlim_names.h
@@ -258,5 +259,4 @@ wakeup.bin
wakeup.elf
wakeup.lds
zImage*
-zconf.hash.c
zoffset.h
diff --git a/Documentation/driver-api/basics.rst b/Documentation/driver-api/basics.rst
index 472e7a664d13..73fa7d42bbba 100644
--- a/Documentation/driver-api/basics.rst
+++ b/Documentation/driver-api/basics.rst
@@ -4,7 +4,7 @@ Driver Basics
Driver Entry and Exit points
----------------------------
-.. kernel-doc:: include/linux/init.h
+.. kernel-doc:: include/linux/module.h
:internal:
Driver device table
@@ -103,12 +103,6 @@ Kernel utility functions
.. kernel-doc:: kernel/panic.c
:export:
-.. kernel-doc:: kernel/sys.c
- :export:
-
-.. kernel-doc:: kernel/rcu/srcu.c
- :export:
-
.. kernel-doc:: kernel/rcu/tree.c
:export:
diff --git a/Documentation/driver-api/dma-buf.rst b/Documentation/driver-api/dma-buf.rst
index 31671b469627..dc384f2f7f34 100644
--- a/Documentation/driver-api/dma-buf.rst
+++ b/Documentation/driver-api/dma-buf.rst
@@ -139,9 +139,6 @@ DMA Fences
Seqno Hardware Fences
~~~~~~~~~~~~~~~~~~~~~
-.. kernel-doc:: drivers/dma-buf/seqno-fence.c
- :export:
-
.. kernel-doc:: include/linux/seqno-fence.h
:internal:
diff --git a/Documentation/driver-api/gpio.rst b/Documentation/driver-api/gpio.rst
new file mode 100644
index 000000000000..6dd4aa647f27
--- /dev/null
+++ b/Documentation/driver-api/gpio.rst
@@ -0,0 +1,45 @@
+===================================
+General Purpose Input/Output (GPIO)
+===================================
+
+Core
+====
+
+.. kernel-doc:: include/linux/gpio/driver.h
+ :internal:
+
+.. kernel-doc:: drivers/gpio/gpiolib.c
+ :export:
+
+Legacy API
+==========
+
+The functions listed in this section are deprecated. The GPIO descriptor based
+API described above should be used in new code.
+
+.. kernel-doc:: drivers/gpio/gpiolib-legacy.c
+ :export:
+
+ACPI support
+============
+
+.. kernel-doc:: drivers/gpio/gpiolib-acpi.c
+ :export:
+
+Device tree support
+===================
+
+.. kernel-doc:: drivers/gpio/gpiolib-of.c
+ :export:
+
+Device-managed API
+==================
+
+.. kernel-doc:: drivers/gpio/devres.c
+ :export:
+
+sysfs helpers
+=============
+
+.. kernel-doc:: drivers/gpio/gpiolib-sysfs.c
+ :export:
diff --git a/Documentation/driver-api/i2c.rst b/Documentation/driver-api/i2c.rst
index f3939f7852bd..7582c079d747 100644
--- a/Documentation/driver-api/i2c.rst
+++ b/Documentation/driver-api/i2c.rst
@@ -13,8 +13,8 @@ I2C is a multi-master bus; open drain signaling is used to arbitrate
between masters, as well as to handshake and to synchronize clocks from
slower clients.
-The Linux I2C programming interfaces support only the master side of bus
-interactions, not the slave side. The programming interface is
+The Linux I2C programming interfaces support the master side of bus
+interactions and the slave side. The programming interface is
structured around two kinds of driver, and two kinds of device. An I2C
"Adapter Driver" abstracts the controller hardware; it binds to a
physical device (perhaps a PCI device or platform_device) and exposes a
@@ -22,9 +22,8 @@ physical device (perhaps a PCI device or platform_device) and exposes a
I2C bus segment it manages. On each I2C bus segment will be I2C devices
represented by a :c:type:`struct i2c_client <i2c_client>`.
Those devices will be bound to a :c:type:`struct i2c_driver
-<i2c_driver>`, which should follow the standard Linux driver
-model. (At this writing, a legacy model is more widely used.) There are
-functions to perform various I2C protocol operations; at this writing
+<i2c_driver>`, which should follow the standard Linux driver model. There
+are functions to perform various I2C protocol operations; at this writing
all such functions are usable only from task context.
The System Management Bus (SMBus) is a sibling protocol. Most SMBus
@@ -42,5 +41,8 @@ i2c_adapter devices which don't support those I2C operations.
.. kernel-doc:: drivers/i2c/i2c-boardinfo.c
:functions: i2c_register_board_info
-.. kernel-doc:: drivers/i2c/i2c-core.c
+.. kernel-doc:: drivers/i2c/i2c-core-base.c
+ :export:
+
+.. kernel-doc:: drivers/i2c/i2c-core-smbus.c
:export:
diff --git a/Documentation/driver-api/index.rst b/Documentation/driver-api/index.rst
index 8058a87c1c74..9c20624842b7 100644
--- a/Documentation/driver-api/index.rst
+++ b/Documentation/driver-api/index.rst
@@ -32,11 +32,19 @@ available subsections can be seen below.
i2c
hsi
edac
+ scsi
+ libata
+ mtdnand
miscellaneous
+ w1
+ rapidio
+ s390-drivers
vme
80211/index
uio-howto
firmware/index
+ pinctl
+ gpio
misc_devices
.. only:: subproject and html
diff --git a/Documentation/driver-api/libata.rst b/Documentation/driver-api/libata.rst
new file mode 100644
index 000000000000..4adc056f7635
--- /dev/null
+++ b/Documentation/driver-api/libata.rst
@@ -0,0 +1,1031 @@
+========================
+libATA Developer's Guide
+========================
+
+:Author: Jeff Garzik
+
+Introduction
+============
+
+libATA is a library used inside the Linux kernel to support ATA host
+controllers and devices. libATA provides an ATA driver API, class
+transports for ATA and ATAPI devices, and SCSI<->ATA translation for ATA
+devices according to the T10 SAT specification.
+
+This Guide documents the libATA driver API, library functions, library
+internals, and a couple sample ATA low-level drivers.
+
+libata Driver API
+=================
+
+:c:type:`struct ata_port_operations <ata_port_operations>`
+is defined for every low-level libata
+hardware driver, and it controls how the low-level driver interfaces
+with the ATA and SCSI layers.
+
+FIS-based drivers will hook into the system with ``->qc_prep()`` and
+``->qc_issue()`` high-level hooks. Hardware which behaves in a manner
+similar to PCI IDE hardware may utilize several generic helpers,
+defining at a bare minimum the bus I/O addresses of the ATA shadow
+register blocks.
+
+:c:type:`struct ata_port_operations <ata_port_operations>`
+----------------------------------------------------------
+
+Disable ATA port
+~~~~~~~~~~~~~~~~
+
+::
+
+ void (*port_disable) (struct ata_port *);
+
+
+Called from :c:func:`ata_bus_probe` error path, as well as when unregistering
+from the SCSI module (rmmod, hot unplug). This function should do
+whatever needs to be done to take the port out of use. In most cases,
+:c:func:`ata_port_disable` can be used as this hook.
+
+Called from :c:func:`ata_bus_probe` on a failed probe. Called from
+:c:func:`ata_scsi_release`.
+
+Post-IDENTIFY device configuration
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+ void (*dev_config) (struct ata_port *, struct ata_device *);
+
+
+Called after IDENTIFY [PACKET] DEVICE is issued to each device found.
+Typically used to apply device-specific fixups prior to issue of SET
+FEATURES - XFER MODE, and prior to operation.
+
+This entry may be specified as NULL in ata_port_operations.
+
+Set PIO/DMA mode
+~~~~~~~~~~~~~~~~
+
+::
+
+ void (*set_piomode) (struct ata_port *, struct ata_device *);
+ void (*set_dmamode) (struct ata_port *, struct ata_device *);
+ void (*post_set_mode) (struct ata_port *);
+ unsigned int (*mode_filter) (struct ata_port *, struct ata_device *, unsigned int);
+
+
+Hooks called prior to the issue of SET FEATURES - XFER MODE command. The
+optional ``->mode_filter()`` hook is called when libata has built a mask of
+the possible modes. This is passed to the ``->mode_filter()`` function
+which should return a mask of valid modes after filtering those
+unsuitable due to hardware limits. It is not valid to use this interface
+to add modes.
+
+``dev->pio_mode`` and ``dev->dma_mode`` are guaranteed to be valid when
+``->set_piomode()`` and when ``->set_dmamode()`` is called. The timings for
+any other drive sharing the cable will also be valid at this point. That
+is the library records the decisions for the modes of each drive on a
+channel before it attempts to set any of them.
+
+``->post_set_mode()`` is called unconditionally, after the SET FEATURES -
+XFER MODE command completes successfully.
+
+``->set_piomode()`` is always called (if present), but ``->set_dma_mode()``
+is only called if DMA is possible.
+
+Taskfile read/write
+~~~~~~~~~~~~~~~~~~~
+
+::
+
+ void (*sff_tf_load) (struct ata_port *ap, struct ata_taskfile *tf);
+ void (*sff_tf_read) (struct ata_port *ap, struct ata_taskfile *tf);
+
+
+``->tf_load()`` is called to load the given taskfile into hardware
+registers / DMA buffers. ``->tf_read()`` is called to read the hardware
+registers / DMA buffers, to obtain the current set of taskfile register
+values. Most drivers for taskfile-based hardware (PIO or MMIO) use
+:c:func:`ata_sff_tf_load` and :c:func:`ata_sff_tf_read` for these hooks.
+
+PIO data read/write
+~~~~~~~~~~~~~~~~~~~
+
+::
+
+ void (*sff_data_xfer) (struct ata_device *, unsigned char *, unsigned int, int);
+
+
+All bmdma-style drivers must implement this hook. This is the low-level
+operation that actually copies the data bytes during a PIO data
+transfer. Typically the driver will choose one of
+:c:func:`ata_sff_data_xfer_noirq`, :c:func:`ata_sff_data_xfer`, or
+:c:func:`ata_sff_data_xfer32`.
+
+ATA command execute
+~~~~~~~~~~~~~~~~~~~
+
+::
+
+ void (*sff_exec_command)(struct ata_port *ap, struct ata_taskfile *tf);
+
+
+causes an ATA command, previously loaded with ``->tf_load()``, to be
+initiated in hardware. Most drivers for taskfile-based hardware use
+:c:func:`ata_sff_exec_command` for this hook.
+
+Per-cmd ATAPI DMA capabilities filter
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+ int (*check_atapi_dma) (struct ata_queued_cmd *qc);
+
+
+Allow low-level driver to filter ATA PACKET commands, returning a status
+indicating whether or not it is OK to use DMA for the supplied PACKET
+command.
+
+This hook may be specified as NULL, in which case libata will assume
+that atapi dma can be supported.
+
+Read specific ATA shadow registers
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+ u8 (*sff_check_status)(struct ata_port *ap);
+ u8 (*sff_check_altstatus)(struct ata_port *ap);
+
+
+Reads the Status/AltStatus ATA shadow register from hardware. On some
+hardware, reading the Status register has the side effect of clearing
+the interrupt condition. Most drivers for taskfile-based hardware use
+:c:func:`ata_sff_check_status` for this hook.
+
+Write specific ATA shadow register
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+ void (*sff_set_devctl)(struct ata_port *ap, u8 ctl);
+
+
+Write the device control ATA shadow register to the hardware. Most
+drivers don't need to define this.
+
+Select ATA device on bus
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+ void (*sff_dev_select)(struct ata_port *ap, unsigned int device);
+
+
+Issues the low-level hardware command(s) that causes one of N hardware
+devices to be considered 'selected' (active and available for use) on
+the ATA bus. This generally has no meaning on FIS-based devices.
+
+Most drivers for taskfile-based hardware use :c:func:`ata_sff_dev_select` for
+this hook.
+
+Private tuning method
+~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+ void (*set_mode) (struct ata_port *ap);
+
+
+By default libata performs drive and controller tuning in accordance
+with the ATA timing rules and also applies blacklists and cable limits.
+Some controllers need special handling and have custom tuning rules,
+typically raid controllers that use ATA commands but do not actually do
+drive timing.
+
+ **Warning**
+
+ This hook should not be used to replace the standard controller
+ tuning logic when a controller has quirks. Replacing the default
+ tuning logic in that case would bypass handling for drive and bridge
+ quirks that may be important to data reliability. If a controller
+ needs to filter the mode selection it should use the mode_filter
+ hook instead.
+
+Control PCI IDE BMDMA engine
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+ void (*bmdma_setup) (struct ata_queued_cmd *qc);
+ void (*bmdma_start) (struct ata_queued_cmd *qc);
+ void (*bmdma_stop) (struct ata_port *ap);
+ u8 (*bmdma_status) (struct ata_port *ap);
+
+
+When setting up an IDE BMDMA transaction, these hooks arm
+(``->bmdma_setup``), fire (``->bmdma_start``), and halt (``->bmdma_stop``) the
+hardware's DMA engine. ``->bmdma_status`` is used to read the standard PCI
+IDE DMA Status register.
+
+These hooks are typically either no-ops, or simply not implemented, in
+FIS-based drivers.
+
+Most legacy IDE drivers use :c:func:`ata_bmdma_setup` for the
+:c:func:`bmdma_setup` hook. :c:func:`ata_bmdma_setup` will write the pointer
+to the PRD table to the IDE PRD Table Address register, enable DMA in the DMA
+Command register, and call :c:func:`exec_command` to begin the transfer.
+
+Most legacy IDE drivers use :c:func:`ata_bmdma_start` for the
+:c:func:`bmdma_start` hook. :c:func:`ata_bmdma_start` will write the
+ATA_DMA_START flag to the DMA Command register.
+
+Many legacy IDE drivers use :c:func:`ata_bmdma_stop` for the
+:c:func:`bmdma_stop` hook. :c:func:`ata_bmdma_stop` clears the ATA_DMA_START
+flag in the DMA command register.
+
+Many legacy IDE drivers use :c:func:`ata_bmdma_status` as the
+:c:func:`bmdma_status` hook.
+
+High-level taskfile hooks
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+ void (*qc_prep) (struct ata_queued_cmd *qc);
+ int (*qc_issue) (struct ata_queued_cmd *qc);
+
+
+Higher-level hooks, these two hooks can potentially supercede several of
+the above taskfile/DMA engine hooks. ``->qc_prep`` is called after the
+buffers have been DMA-mapped, and is typically used to populate the
+hardware's DMA scatter-gather table. Most drivers use the standard
+:c:func:`ata_qc_prep` helper function, but more advanced drivers roll their
+own.
+
+``->qc_issue`` is used to make a command active, once the hardware and S/G
+tables have been prepared. IDE BMDMA drivers use the helper function
+:c:func:`ata_qc_issue_prot` for taskfile protocol-based dispatch. More
+advanced drivers implement their own ``->qc_issue``.
+
+:c:func:`ata_qc_issue_prot` calls ``->tf_load()``, ``->bmdma_setup()``, and
+``->bmdma_start()`` as necessary to initiate a transfer.
+
+Exception and probe handling (EH)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+ void (*eng_timeout) (struct ata_port *ap);
+ void (*phy_reset) (struct ata_port *ap);
+
+
+Deprecated. Use ``->error_handler()`` instead.
+
+::
+
+ void (*freeze) (struct ata_port *ap);
+ void (*thaw) (struct ata_port *ap);
+
+
+:c:func:`ata_port_freeze` is called when HSM violations or some other
+condition disrupts normal operation of the port. A frozen port is not
+allowed to perform any operation until the port is thawed, which usually
+follows a successful reset.
+
+The optional ``->freeze()`` callback can be used for freezing the port
+hardware-wise (e.g. mask interrupt and stop DMA engine). If a port
+cannot be frozen hardware-wise, the interrupt handler must ack and clear
+interrupts unconditionally while the port is frozen.
+
+The optional ``->thaw()`` callback is called to perform the opposite of
+``->freeze()``: prepare the port for normal operation once again. Unmask
+interrupts, start DMA engine, etc.
+
+::
+
+ void (*error_handler) (struct ata_port *ap);
+
+
+``->error_handler()`` is a driver's hook into probe, hotplug, and recovery
+and other exceptional conditions. The primary responsibility of an
+implementation is to call :c:func:`ata_do_eh` or :c:func:`ata_bmdma_drive_eh`
+with a set of EH hooks as arguments:
+
+'prereset' hook (may be NULL) is called during an EH reset, before any
+other actions are taken.
+
+'postreset' hook (may be NULL) is called after the EH reset is
+performed. Based on existing conditions, severity of the problem, and
+hardware capabilities,
+
+Either 'softreset' (may be NULL) or 'hardreset' (may be NULL) will be
+called to perform the low-level EH reset.
+
+::
+
+ void (*post_internal_cmd) (struct ata_queued_cmd *qc);
+
+
+Perform any hardware-specific actions necessary to finish processing
+after executing a probe-time or EH-time command via
+:c:func:`ata_exec_internal`.
+
+Hardware interrupt handling
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+ irqreturn_t (*irq_handler)(int, void *, struct pt_regs *);
+ void (*irq_clear) (struct ata_port *);
+
+
+``->irq_handler`` is the interrupt handling routine registered with the
+system, by libata. ``->irq_clear`` is called during probe just before the
+interrupt handler is registered, to be sure hardware is quiet.
+
+The second argument, dev_instance, should be cast to a pointer to
+:c:type:`struct ata_host_set <ata_host_set>`.
+
+Most legacy IDE drivers use :c:func:`ata_sff_interrupt` for the irq_handler
+hook, which scans all ports in the host_set, determines which queued
+command was active (if any), and calls ata_sff_host_intr(ap,qc).
+
+Most legacy IDE drivers use :c:func:`ata_sff_irq_clear` for the
+:c:func:`irq_clear` hook, which simply clears the interrupt and error flags
+in the DMA status register.
+
+SATA phy read/write
+~~~~~~~~~~~~~~~~~~~
+
+::
+
+ int (*scr_read) (struct ata_port *ap, unsigned int sc_reg,
+ u32 *val);
+ int (*scr_write) (struct ata_port *ap, unsigned int sc_reg,
+ u32 val);
+
+
+Read and write standard SATA phy registers. Currently only used if
+``->phy_reset`` hook called the :c:func:`sata_phy_reset` helper function.
+sc_reg is one of SCR_STATUS, SCR_CONTROL, SCR_ERROR, or SCR_ACTIVE.
+
+Init and shutdown
+~~~~~~~~~~~~~~~~~
+
+::
+
+ int (*port_start) (struct ata_port *ap);
+ void (*port_stop) (struct ata_port *ap);
+ void (*host_stop) (struct ata_host_set *host_set);
+
+
+``->port_start()`` is called just after the data structures for each port
+are initialized. Typically this is used to alloc per-port DMA buffers /
+tables / rings, enable DMA engines, and similar tasks. Some drivers also
+use this entry point as a chance to allocate driver-private memory for
+``ap->private_data``.
+
+Many drivers use :c:func:`ata_port_start` as this hook or call it from their
+own :c:func:`port_start` hooks. :c:func:`ata_port_start` allocates space for
+a legacy IDE PRD table and returns.
+
+``->port_stop()`` is called after ``->host_stop()``. Its sole function is to
+release DMA/memory resources, now that they are no longer actively being
+used. Many drivers also free driver-private data from port at this time.
+
+``->host_stop()`` is called after all ``->port_stop()`` calls have completed.
+The hook must finalize hardware shutdown, release DMA and other
+resources, etc. This hook may be specified as NULL, in which case it is
+not called.
+
+Error handling
+==============
+
+This chapter describes how errors are handled under libata. Readers are
+advised to read SCSI EH (Documentation/scsi/scsi_eh.txt) and ATA
+exceptions doc first.
+
+Origins of commands
+-------------------
+
+In libata, a command is represented with
+:c:type:`struct ata_queued_cmd <ata_queued_cmd>` or qc.
+qc's are preallocated during port initialization and repetitively used
+for command executions. Currently only one qc is allocated per port but
+yet-to-be-merged NCQ branch allocates one for each tag and maps each qc
+to NCQ tag 1-to-1.
+
+libata commands can originate from two sources - libata itself and SCSI
+midlayer. libata internal commands are used for initialization and error
+handling. All normal blk requests and commands for SCSI emulation are
+passed as SCSI commands through queuecommand callback of SCSI host
+template.
+
+How commands are issued
+-----------------------
+
+Internal commands
+ First, qc is allocated and initialized using :c:func:`ata_qc_new_init`.
+ Although :c:func:`ata_qc_new_init` doesn't implement any wait or retry
+ mechanism when qc is not available, internal commands are currently
+ issued only during initialization and error recovery, so no other
+ command is active and allocation is guaranteed to succeed.
+
+ Once allocated qc's taskfile is initialized for the command to be
+ executed. qc currently has two mechanisms to notify completion. One
+ is via ``qc->complete_fn()`` callback and the other is completion
+ ``qc->waiting``. ``qc->complete_fn()`` callback is the asynchronous path
+ used by normal SCSI translated commands and ``qc->waiting`` is the
+ synchronous (issuer sleeps in process context) path used by internal
+ commands.
+
+ Once initialization is complete, host_set lock is acquired and the
+ qc is issued.
+
+SCSI commands
+ All libata drivers use :c:func:`ata_scsi_queuecmd` as
+ ``hostt->queuecommand`` callback. scmds can either be simulated or
+ translated. No qc is involved in processing a simulated scmd. The
+ result is computed right away and the scmd is completed.
+
+ For a translated scmd, :c:func:`ata_qc_new_init` is invoked to allocate a
+ qc and the scmd is translated into the qc. SCSI midlayer's
+ completion notification function pointer is stored into
+ ``qc->scsidone``.
+
+ ``qc->complete_fn()`` callback is used for completion notification. ATA
+ commands use :c:func:`ata_scsi_qc_complete` while ATAPI commands use
+ :c:func:`atapi_qc_complete`. Both functions end up calling ``qc->scsidone``
+ to notify upper layer when the qc is finished. After translation is
+ completed, the qc is issued with :c:func:`ata_qc_issue`.
+
+ Note that SCSI midlayer invokes hostt->queuecommand while holding
+ host_set lock, so all above occur while holding host_set lock.
+
+How commands are processed
+--------------------------
+
+Depending on which protocol and which controller are used, commands are
+processed differently. For the purpose of discussion, a controller which
+uses taskfile interface and all standard callbacks is assumed.
+
+Currently 6 ATA command protocols are used. They can be sorted into the
+following four categories according to how they are processed.
+
+ATA NO DATA or DMA
+ ATA_PROT_NODATA and ATA_PROT_DMA fall into this category. These
+ types of commands don't require any software intervention once
+ issued. Device will raise interrupt on completion.
+
+ATA PIO
+ ATA_PROT_PIO is in this category. libata currently implements PIO
+ with polling. ATA_NIEN bit is set to turn off interrupt and
+ pio_task on ata_wq performs polling and IO.
+
+ATAPI NODATA or DMA
+ ATA_PROT_ATAPI_NODATA and ATA_PROT_ATAPI_DMA are in this
+ category. packet_task is used to poll BSY bit after issuing PACKET
+ command. Once BSY is turned off by the device, packet_task
+ transfers CDB and hands off processing to interrupt handler.
+
+ATAPI PIO
+ ATA_PROT_ATAPI is in this category. ATA_NIEN bit is set and, as
+ in ATAPI NODATA or DMA, packet_task submits cdb. However, after
+ submitting cdb, further processing (data transfer) is handed off to
+ pio_task.
+
+How commands are completed
+--------------------------
+
+Once issued, all qc's are either completed with :c:func:`ata_qc_complete` or
+time out. For commands which are handled by interrupts,
+:c:func:`ata_host_intr` invokes :c:func:`ata_qc_complete`, and, for PIO tasks,
+pio_task invokes :c:func:`ata_qc_complete`. In error cases, packet_task may
+also complete commands.
+
+:c:func:`ata_qc_complete` does the following.
+
+1. DMA memory is unmapped.
+
+2. ATA_QCFLAG_ACTIVE is cleared from qc->flags.
+
+3. :c:func:`qc->complete_fn` callback is invoked. If the return value of the
+ callback is not zero. Completion is short circuited and
+ :c:func:`ata_qc_complete` returns.
+
+4. :c:func:`__ata_qc_complete` is called, which does
+
+ 1. ``qc->flags`` is cleared to zero.
+
+ 2. ``ap->active_tag`` and ``qc->tag`` are poisoned.
+
+ 3. ``qc->waiting`` is cleared & completed (in that order).
+
+ 4. qc is deallocated by clearing appropriate bit in ``ap->qactive``.
+
+So, it basically notifies upper layer and deallocates qc. One exception
+is short-circuit path in #3 which is used by :c:func:`atapi_qc_complete`.
+
+For all non-ATAPI commands, whether it fails or not, almost the same
+code path is taken and very little error handling takes place. A qc is
+completed with success status if it succeeded, with failed status
+otherwise.
+
+However, failed ATAPI commands require more handling as REQUEST SENSE is
+needed to acquire sense data. If an ATAPI command fails,
+:c:func:`ata_qc_complete` is invoked with error status, which in turn invokes
+:c:func:`atapi_qc_complete` via ``qc->complete_fn()`` callback.
+
+This makes :c:func:`atapi_qc_complete` set ``scmd->result`` to
+SAM_STAT_CHECK_CONDITION, complete the scmd and return 1. As the
+sense data is empty but ``scmd->result`` is CHECK CONDITION, SCSI midlayer
+will invoke EH for the scmd, and returning 1 makes :c:func:`ata_qc_complete`
+to return without deallocating the qc. This leads us to
+:c:func:`ata_scsi_error` with partially completed qc.
+
+:c:func:`ata_scsi_error`
+------------------------
+
+:c:func:`ata_scsi_error` is the current ``transportt->eh_strategy_handler()``
+for libata. As discussed above, this will be entered in two cases -
+timeout and ATAPI error completion. This function calls low level libata
+driver's :c:func:`eng_timeout` callback, the standard callback for which is
+:c:func:`ata_eng_timeout`. It checks if a qc is active and calls
+:c:func:`ata_qc_timeout` on the qc if so. Actual error handling occurs in
+:c:func:`ata_qc_timeout`.
+
+If EH is invoked for timeout, :c:func:`ata_qc_timeout` stops BMDMA and
+completes the qc. Note that as we're currently in EH, we cannot call
+scsi_done. As described in SCSI EH doc, a recovered scmd should be
+either retried with :c:func:`scsi_queue_insert` or finished with
+:c:func:`scsi_finish_command`. Here, we override ``qc->scsidone`` with
+:c:func:`scsi_finish_command` and calls :c:func:`ata_qc_complete`.
+
+If EH is invoked due to a failed ATAPI qc, the qc here is completed but
+not deallocated. The purpose of this half-completion is to use the qc as
+place holder to make EH code reach this place. This is a bit hackish,
+but it works.
+
+Once control reaches here, the qc is deallocated by invoking
+:c:func:`__ata_qc_complete` explicitly. Then, internal qc for REQUEST SENSE
+is issued. Once sense data is acquired, scmd is finished by directly
+invoking :c:func:`scsi_finish_command` on the scmd. Note that as we already
+have completed and deallocated the qc which was associated with the
+scmd, we don't need to/cannot call :c:func:`ata_qc_complete` again.
+
+Problems with the current EH
+----------------------------
+
+- Error representation is too crude. Currently any and all error
+ conditions are represented with ATA STATUS and ERROR registers.
+ Errors which aren't ATA device errors are treated as ATA device
+ errors by setting ATA_ERR bit. Better error descriptor which can
+ properly represent ATA and other errors/exceptions is needed.
+
+- When handling timeouts, no action is taken to make device forget
+ about the timed out command and ready for new commands.
+
+- EH handling via :c:func:`ata_scsi_error` is not properly protected from
+ usual command processing. On EH entrance, the device is not in
+ quiescent state. Timed out commands may succeed or fail any time.
+ pio_task and atapi_task may still be running.
+
+- Too weak error recovery. Devices / controllers causing HSM mismatch
+ errors and other errors quite often require reset to return to known
+ state. Also, advanced error handling is necessary to support features
+ like NCQ and hotplug.
+
+- ATA errors are directly handled in the interrupt handler and PIO
+ errors in pio_task. This is problematic for advanced error handling
+ for the following reasons.
+
+ First, advanced error handling often requires context and internal qc
+ execution.
+
+ Second, even a simple failure (say, CRC error) needs information
+ gathering and could trigger complex error handling (say, resetting &
+ reconfiguring). Having multiple code paths to gather information,
+ enter EH and trigger actions makes life painful.
+
+ Third, scattered EH code makes implementing low level drivers
+ difficult. Low level drivers override libata callbacks. If EH is
+ scattered over several places, each affected callbacks should perform
+ its part of error handling. This can be error prone and painful.
+
+libata Library
+==============
+
+.. kernel-doc:: drivers/ata/libata-core.c
+ :export:
+
+libata Core Internals
+=====================
+
+.. kernel-doc:: drivers/ata/libata-core.c
+ :internal:
+
+.. kernel-doc:: drivers/ata/libata-eh.c
+
+libata SCSI translation/emulation
+=================================
+
+.. kernel-doc:: drivers/ata/libata-scsi.c
+ :export:
+
+.. kernel-doc:: drivers/ata/libata-scsi.c
+ :internal:
+
+ATA errors and exceptions
+=========================
+
+This chapter tries to identify what error/exception conditions exist for
+ATA/ATAPI devices and describe how they should be handled in
+implementation-neutral way.
+
+The term 'error' is used to describe conditions where either an explicit
+error condition is reported from device or a command has timed out.
+
+The term 'exception' is either used to describe exceptional conditions
+which are not errors (say, power or hotplug events), or to describe both
+errors and non-error exceptional conditions. Where explicit distinction
+between error and exception is necessary, the term 'non-error exception'
+is used.
+
+Exception categories
+--------------------
+
+Exceptions are described primarily with respect to legacy taskfile + bus
+master IDE interface. If a controller provides other better mechanism
+for error reporting, mapping those into categories described below
+shouldn't be difficult.
+
+In the following sections, two recovery actions - reset and
+reconfiguring transport - are mentioned. These are described further in
+`EH recovery actions <#exrec>`__.
+
+HSM violation
+~~~~~~~~~~~~~
+
+This error is indicated when STATUS value doesn't match HSM requirement
+during issuing or execution any ATA/ATAPI command.
+
+- ATA_STATUS doesn't contain !BSY && DRDY && !DRQ while trying to
+ issue a command.
+
+- !BSY && !DRQ during PIO data transfer.
+
+- DRQ on command completion.
+
+- !BSY && ERR after CDB transfer starts but before the last byte of CDB
+ is transferred. ATA/ATAPI standard states that "The device shall not
+ terminate the PACKET command with an error before the last byte of
+ the command packet has been written" in the error outputs description
+ of PACKET command and the state diagram doesn't include such
+ transitions.
+
+In these cases, HSM is violated and not much information regarding the
+error can be acquired from STATUS or ERROR register. IOW, this error can
+be anything - driver bug, faulty device, controller and/or cable.
+
+As HSM is violated, reset is necessary to restore known state.
+Reconfiguring transport for lower speed might be helpful too as
+transmission errors sometimes cause this kind of errors.
+
+ATA/ATAPI device error (non-NCQ / non-CHECK CONDITION)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+These are errors detected and reported by ATA/ATAPI devices indicating
+device problems. For this type of errors, STATUS and ERROR register
+values are valid and describe error condition. Note that some of ATA bus
+errors are detected by ATA/ATAPI devices and reported using the same
+mechanism as device errors. Those cases are described later in this
+section.
+
+For ATA commands, this type of errors are indicated by !BSY && ERR
+during command execution and on completion.
+
+For ATAPI commands,
+
+- !BSY && ERR && ABRT right after issuing PACKET indicates that PACKET
+ command is not supported and falls in this category.
+
+- !BSY && ERR(==CHK) && !ABRT after the last byte of CDB is transferred
+ indicates CHECK CONDITION and doesn't fall in this category.
+
+- !BSY && ERR(==CHK) && ABRT after the last byte of CDB is transferred
+ \*probably\* indicates CHECK CONDITION and doesn't fall in this
+ category.
+
+Of errors detected as above, the following are not ATA/ATAPI device
+errors but ATA bus errors and should be handled according to
+`ATA bus error <#excatATAbusErr>`__.
+
+CRC error during data transfer
+ This is indicated by ICRC bit in the ERROR register and means that
+ corruption occurred during data transfer. Up to ATA/ATAPI-7, the
+ standard specifies that this bit is only applicable to UDMA
+ transfers but ATA/ATAPI-8 draft revision 1f says that the bit may be
+ applicable to multiword DMA and PIO.
+
+ABRT error during data transfer or on completion
+ Up to ATA/ATAPI-7, the standard specifies that ABRT could be set on
+ ICRC errors and on cases where a device is not able to complete a
+ command. Combined with the fact that MWDMA and PIO transfer errors
+ aren't allowed to use ICRC bit up to ATA/ATAPI-7, it seems to imply
+ that ABRT bit alone could indicate transfer errors.
+
+ However, ATA/ATAPI-8 draft revision 1f removes the part that ICRC
+ errors can turn on ABRT. So, this is kind of gray area. Some
+ heuristics are needed here.
+
+ATA/ATAPI device errors can be further categorized as follows.
+
+Media errors
+ This is indicated by UNC bit in the ERROR register. ATA devices
+ reports UNC error only after certain number of retries cannot
+ recover the data, so there's nothing much else to do other than
+ notifying upper layer.
+
+ READ and WRITE commands report CHS or LBA of the first failed sector
+ but ATA/ATAPI standard specifies that the amount of transferred data
+ on error completion is indeterminate, so we cannot assume that
+ sectors preceding the failed sector have been transferred and thus
+ cannot complete those sectors successfully as SCSI does.
+
+Media changed / media change requested error
+ <<TODO: fill here>>
+
+Address error
+ This is indicated by IDNF bit in the ERROR register. Report to upper
+ layer.
+
+Other errors
+ This can be invalid command or parameter indicated by ABRT ERROR bit
+ or some other error condition. Note that ABRT bit can indicate a lot
+ of things including ICRC and Address errors. Heuristics needed.
+
+Depending on commands, not all STATUS/ERROR bits are applicable. These
+non-applicable bits are marked with "na" in the output descriptions but
+up to ATA/ATAPI-7 no definition of "na" can be found. However,
+ATA/ATAPI-8 draft revision 1f describes "N/A" as follows.
+
+ 3.2.3.3a N/A
+ A keyword the indicates a field has no defined value in this
+ standard and should not be checked by the host or device. N/A
+ fields should be cleared to zero.
+
+So, it seems reasonable to assume that "na" bits are cleared to zero by
+devices and thus need no explicit masking.
+
+ATAPI device CHECK CONDITION
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ATAPI device CHECK CONDITION error is indicated by set CHK bit (ERR bit)
+in the STATUS register after the last byte of CDB is transferred for a
+PACKET command. For this kind of errors, sense data should be acquired
+to gather information regarding the errors. REQUEST SENSE packet command
+should be used to acquire sense data.
+
+Once sense data is acquired, this type of errors can be handled
+similarly to other SCSI errors. Note that sense data may indicate ATA
+bus error (e.g. Sense Key 04h HARDWARE ERROR && ASC/ASCQ 47h/00h SCSI
+PARITY ERROR). In such cases, the error should be considered as an ATA
+bus error and handled according to `ATA bus error <#excatATAbusErr>`__.
+
+ATA device error (NCQ)
+~~~~~~~~~~~~~~~~~~~~~~
+
+NCQ command error is indicated by cleared BSY and set ERR bit during NCQ
+command phase (one or more NCQ commands outstanding). Although STATUS
+and ERROR registers will contain valid values describing the error, READ
+LOG EXT is required to clear the error condition, determine which
+command has failed and acquire more information.
+
+READ LOG EXT Log Page 10h reports which tag has failed and taskfile
+register values describing the error. With this information the failed
+command can be handled as a normal ATA command error as in
+`ATA/ATAPI device error (non-NCQ / non-CHECK CONDITION) <#excatDevErr>`__
+and all other in-flight commands must be retried. Note that this retry
+should not be counted - it's likely that commands retried this way would
+have completed normally if it were not for the failed command.
+
+Note that ATA bus errors can be reported as ATA device NCQ errors. This
+should be handled as described in `ATA bus error <#excatATAbusErr>`__.
+
+If READ LOG EXT Log Page 10h fails or reports NQ, we're thoroughly
+screwed. This condition should be treated according to
+`HSM violation <#excatHSMviolation>`__.
+
+ATA bus error
+~~~~~~~~~~~~~
+
+ATA bus error means that data corruption occurred during transmission
+over ATA bus (SATA or PATA). This type of errors can be indicated by
+
+- ICRC or ABRT error as described in
+ `ATA/ATAPI device error (non-NCQ / non-CHECK CONDITION) <#excatDevErr>`__.
+
+- Controller-specific error completion with error information
+ indicating transmission error.
+
+- On some controllers, command timeout. In this case, there may be a
+ mechanism to determine that the timeout is due to transmission error.
+
+- Unknown/random errors, timeouts and all sorts of weirdities.
+
+As described above, transmission errors can cause wide variety of
+symptoms ranging from device ICRC error to random device lockup, and,
+for many cases, there is no way to tell if an error condition is due to
+transmission error or not; therefore, it's necessary to employ some kind
+of heuristic when dealing with errors and timeouts. For example,
+encountering repetitive ABRT errors for known supported command is
+likely to indicate ATA bus error.
+
+Once it's determined that ATA bus errors have possibly occurred,
+lowering ATA bus transmission speed is one of actions which may
+alleviate the problem. See `Reconfigure transport <#exrecReconf>`__ for
+more information.
+
+PCI bus error
+~~~~~~~~~~~~~
+
+Data corruption or other failures during transmission over PCI (or other
+system bus). For standard BMDMA, this is indicated by Error bit in the
+BMDMA Status register. This type of errors must be logged as it
+indicates something is very wrong with the system. Resetting host
+controller is recommended.
+
+Late completion
+~~~~~~~~~~~~~~~
+
+This occurs when timeout occurs and the timeout handler finds out that
+the timed out command has completed successfully or with error. This is
+usually caused by lost interrupts. This type of errors must be logged.
+Resetting host controller is recommended.
+
+Unknown error (timeout)
+~~~~~~~~~~~~~~~~~~~~~~~
+
+This is when timeout occurs and the command is still processing or the
+host and device are in unknown state. When this occurs, HSM could be in
+any valid or invalid state. To bring the device to known state and make
+it forget about the timed out command, resetting is necessary. The timed
+out command may be retried.
+
+Timeouts can also be caused by transmission errors. Refer to
+`ATA bus error <#excatATAbusErr>`__ for more details.
+
+Hotplug and power management exceptions
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+<<TODO: fill here>>
+
+EH recovery actions
+-------------------
+
+This section discusses several important recovery actions.
+
+Clearing error condition
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+Many controllers require its error registers to be cleared by error
+handler. Different controllers may have different requirements.
+
+For SATA, it's strongly recommended to clear at least SError register
+during error handling.
+
+Reset
+~~~~~
+
+During EH, resetting is necessary in the following cases.
+
+- HSM is in unknown or invalid state
+
+- HBA is in unknown or invalid state
+
+- EH needs to make HBA/device forget about in-flight commands
+
+- HBA/device behaves weirdly
+
+Resetting during EH might be a good idea regardless of error condition
+to improve EH robustness. Whether to reset both or either one of HBA and
+device depends on situation but the following scheme is recommended.
+
+- When it's known that HBA is in ready state but ATA/ATAPI device is in
+ unknown state, reset only device.
+
+- If HBA is in unknown state, reset both HBA and device.
+
+HBA resetting is implementation specific. For a controller complying to
+taskfile/BMDMA PCI IDE, stopping active DMA transaction may be
+sufficient iff BMDMA state is the only HBA context. But even mostly
+taskfile/BMDMA PCI IDE complying controllers may have implementation
+specific requirements and mechanism to reset themselves. This must be
+addressed by specific drivers.
+
+OTOH, ATA/ATAPI standard describes in detail ways to reset ATA/ATAPI
+devices.
+
+PATA hardware reset
+ This is hardware initiated device reset signalled with asserted PATA
+ RESET- signal. There is no standard way to initiate hardware reset
+ from software although some hardware provides registers that allow
+ driver to directly tweak the RESET- signal.
+
+Software reset
+ This is achieved by turning CONTROL SRST bit on for at least 5us.
+ Both PATA and SATA support it but, in case of SATA, this may require
+ controller-specific support as the second Register FIS to clear SRST
+ should be transmitted while BSY bit is still set. Note that on PATA,
+ this resets both master and slave devices on a channel.
+
+EXECUTE DEVICE DIAGNOSTIC command
+ Although ATA/ATAPI standard doesn't describe exactly, EDD implies
+ some level of resetting, possibly similar level with software reset.
+ Host-side EDD protocol can be handled with normal command processing
+ and most SATA controllers should be able to handle EDD's just like
+ other commands. As in software reset, EDD affects both devices on a
+ PATA bus.
+
+ Although EDD does reset devices, this doesn't suit error handling as
+ EDD cannot be issued while BSY is set and it's unclear how it will
+ act when device is in unknown/weird state.
+
+ATAPI DEVICE RESET command
+ This is very similar to software reset except that reset can be
+ restricted to the selected device without affecting the other device
+ sharing the cable.
+
+SATA phy reset
+ This is the preferred way of resetting a SATA device. In effect,
+ it's identical to PATA hardware reset. Note that this can be done
+ with the standard SCR Control register. As such, it's usually easier
+ to implement than software reset.
+
+One more thing to consider when resetting devices is that resetting
+clears certain configuration parameters and they need to be set to their
+previous or newly adjusted values after reset.
+
+Parameters affected are.
+
+- CHS set up with INITIALIZE DEVICE PARAMETERS (seldom used)
+
+- Parameters set with SET FEATURES including transfer mode setting
+
+- Block count set with SET MULTIPLE MODE
+
+- Other parameters (SET MAX, MEDIA LOCK...)
+
+ATA/ATAPI standard specifies that some parameters must be maintained
+across hardware or software reset, but doesn't strictly specify all of
+them. Always reconfiguring needed parameters after reset is required for
+robustness. Note that this also applies when resuming from deep sleep
+(power-off).
+
+Also, ATA/ATAPI standard requires that IDENTIFY DEVICE / IDENTIFY PACKET
+DEVICE is issued after any configuration parameter is updated or a
+hardware reset and the result used for further operation. OS driver is
+required to implement revalidation mechanism to support this.
+
+Reconfigure transport
+~~~~~~~~~~~~~~~~~~~~~
+
+For both PATA and SATA, a lot of corners are cut for cheap connectors,
+cables or controllers and it's quite common to see high transmission
+error rate. This can be mitigated by lowering transmission speed.
+
+The following is a possible scheme Jeff Garzik suggested.
+
+ If more than $N (3?) transmission errors happen in 15 minutes,
+
+ - if SATA, decrease SATA PHY speed. if speed cannot be decreased,
+
+ - decrease UDMA xfer speed. if at UDMA0, switch to PIO4,
+
+ - decrease PIO xfer speed. if at PIO3, complain, but continue
+
+ata_piix Internals
+===================
+
+.. kernel-doc:: drivers/ata/ata_piix.c
+ :internal:
+
+sata_sil Internals
+===================
+
+.. kernel-doc:: drivers/ata/sata_sil.c
+ :internal:
+
+Thanks
+======
+
+The bulk of the ATA knowledge comes thanks to long conversations with
+Andre Hedrick (www.linux-ide.org), and long hours pondering the ATA and
+SCSI specifications.
+
+Thanks to Alan Cox for pointing out similarities between SATA and SCSI,
+and in general for motivation to hack on libata.
+
+libata's device detection method, ata_pio_devchk, and in general all
+the early probing was based on extensive study of Hale Landis's
+probe/reset code in his ATADRVR driver (www.ata-atapi.com).
diff --git a/Documentation/driver-api/miscellaneous.rst b/Documentation/driver-api/miscellaneous.rst
index 8da7d115bafc..304ffb146cf9 100644
--- a/Documentation/driver-api/miscellaneous.rst
+++ b/Documentation/driver-api/miscellaneous.rst
@@ -47,4 +47,3 @@ used by one consumer at a time.
.. kernel-doc:: drivers/pwm/core.c
:export:
-
diff --git a/Documentation/driver-api/mtdnand.rst b/Documentation/driver-api/mtdnand.rst
new file mode 100644
index 000000000000..2a5191b6d445
--- /dev/null
+++ b/Documentation/driver-api/mtdnand.rst
@@ -0,0 +1,1007 @@
+=====================================
+MTD NAND Driver Programming Interface
+=====================================
+
+:Author: Thomas Gleixner
+
+Introduction
+============
+
+The generic NAND driver supports almost all NAND and AG-AND based chips
+and connects them to the Memory Technology Devices (MTD) subsystem of
+the Linux Kernel.
+
+This documentation is provided for developers who want to implement
+board drivers or filesystem drivers suitable for NAND devices.
+
+Known Bugs And Assumptions
+==========================
+
+None.
+
+Documentation hints
+===================
+
+The function and structure docs are autogenerated. Each function and
+struct member has a short description which is marked with an [XXX]
+identifier. The following chapters explain the meaning of those
+identifiers.
+
+Function identifiers [XXX]
+--------------------------
+
+The functions are marked with [XXX] identifiers in the short comment.
+The identifiers explain the usage and scope of the functions. Following
+identifiers are used:
+
+- [MTD Interface]
+
+ These functions provide the interface to the MTD kernel API. They are
+ not replaceable and provide functionality which is complete hardware
+ independent.
+
+- [NAND Interface]
+
+ These functions are exported and provide the interface to the NAND
+ kernel API.
+
+- [GENERIC]
+
+ Generic functions are not replaceable and provide functionality which
+ is complete hardware independent.
+
+- [DEFAULT]
+
+ Default functions provide hardware related functionality which is
+ suitable for most of the implementations. These functions can be
+ replaced by the board driver if necessary. Those functions are called
+ via pointers in the NAND chip description structure. The board driver
+ can set the functions which should be replaced by board dependent
+ functions before calling nand_scan(). If the function pointer is
+ NULL on entry to nand_scan() then the pointer is set to the default
+ function which is suitable for the detected chip type.
+
+Struct member identifiers [XXX]
+-------------------------------
+
+The struct members are marked with [XXX] identifiers in the comment. The
+identifiers explain the usage and scope of the members. Following
+identifiers are used:
+
+- [INTERN]
+
+ These members are for NAND driver internal use only and must not be
+ modified. Most of these values are calculated from the chip geometry
+ information which is evaluated during nand_scan().
+
+- [REPLACEABLE]
+
+ Replaceable members hold hardware related functions which can be
+ provided by the board driver. The board driver can set the functions
+ which should be replaced by board dependent functions before calling
+ nand_scan(). If the function pointer is NULL on entry to
+ nand_scan() then the pointer is set to the default function which is
+ suitable for the detected chip type.
+
+- [BOARDSPECIFIC]
+
+ Board specific members hold hardware related information which must
+ be provided by the board driver. The board driver must set the
+ function pointers and datafields before calling nand_scan().
+
+- [OPTIONAL]
+
+ Optional members can hold information relevant for the board driver.
+ The generic NAND driver code does not use this information.
+
+Basic board driver
+==================
+
+For most boards it will be sufficient to provide just the basic
+functions and fill out some really board dependent members in the nand
+chip description structure.
+
+Basic defines
+-------------
+
+At least you have to provide a nand_chip structure and a storage for
+the ioremap'ed chip address. You can allocate the nand_chip structure
+using kmalloc or you can allocate it statically. The NAND chip structure
+embeds an mtd structure which will be registered to the MTD subsystem.
+You can extract a pointer to the mtd structure from a nand_chip pointer
+using the nand_to_mtd() helper.
+
+Kmalloc based example
+
+::
+
+ static struct mtd_info *board_mtd;
+ static void __iomem *baseaddr;
+
+
+Static example
+
+::
+
+ static struct nand_chip board_chip;
+ static void __iomem *baseaddr;
+
+
+Partition defines
+-----------------
+
+If you want to divide your device into partitions, then define a
+partitioning scheme suitable to your board.
+
+::
+
+ #define NUM_PARTITIONS 2
+ static struct mtd_partition partition_info[] = {
+ { .name = "Flash partition 1",
+ .offset = 0,
+ .size = 8 * 1024 * 1024 },
+ { .name = "Flash partition 2",
+ .offset = MTDPART_OFS_NEXT,
+ .size = MTDPART_SIZ_FULL },
+ };
+
+
+Hardware control function
+-------------------------
+
+The hardware control function provides access to the control pins of the
+NAND chip(s). The access can be done by GPIO pins or by address lines.
+If you use address lines, make sure that the timing requirements are
+met.
+
+*GPIO based example*
+
+::
+
+ static void board_hwcontrol(struct mtd_info *mtd, int cmd)
+ {
+ switch(cmd){
+ case NAND_CTL_SETCLE: /* Set CLE pin high */ break;
+ case NAND_CTL_CLRCLE: /* Set CLE pin low */ break;
+ case NAND_CTL_SETALE: /* Set ALE pin high */ break;
+ case NAND_CTL_CLRALE: /* Set ALE pin low */ break;
+ case NAND_CTL_SETNCE: /* Set nCE pin low */ break;
+ case NAND_CTL_CLRNCE: /* Set nCE pin high */ break;
+ }
+ }
+
+
+*Address lines based example.* It's assumed that the nCE pin is driven
+by a chip select decoder.
+
+::
+
+ static void board_hwcontrol(struct mtd_info *mtd, int cmd)
+ {
+ struct nand_chip *this = mtd_to_nand(mtd);
+ switch(cmd){
+ case NAND_CTL_SETCLE: this->IO_ADDR_W |= CLE_ADRR_BIT; break;
+ case NAND_CTL_CLRCLE: this->IO_ADDR_W &= ~CLE_ADRR_BIT; break;
+ case NAND_CTL_SETALE: this->IO_ADDR_W |= ALE_ADRR_BIT; break;
+ case NAND_CTL_CLRALE: this->IO_ADDR_W &= ~ALE_ADRR_BIT; break;
+ }
+ }
+
+
+Device ready function
+---------------------
+
+If the hardware interface has the ready busy pin of the NAND chip
+connected to a GPIO or other accessible I/O pin, this function is used
+to read back the state of the pin. The function has no arguments and
+should return 0, if the device is busy (R/B pin is low) and 1, if the
+device is ready (R/B pin is high). If the hardware interface does not
+give access to the ready busy pin, then the function must not be defined
+and the function pointer this->dev_ready is set to NULL.
+
+Init function
+-------------
+
+The init function allocates memory and sets up all the board specific
+parameters and function pointers. When everything is set up nand_scan()
+is called. This function tries to detect and identify then chip. If a
+chip is found all the internal data fields are initialized accordingly.
+The structure(s) have to be zeroed out first and then filled with the
+necessary information about the device.
+
+::
+
+ static int __init board_init (void)
+ {
+ struct nand_chip *this;
+ int err = 0;
+
+ /* Allocate memory for MTD device structure and private data */
+ this = kzalloc(sizeof(struct nand_chip), GFP_KERNEL);
+ if (!this) {
+ printk ("Unable to allocate NAND MTD device structure.\n");
+ err = -ENOMEM;
+ goto out;
+ }
+
+ board_mtd = nand_to_mtd(this);
+
+ /* map physical address */
+ baseaddr = ioremap(CHIP_PHYSICAL_ADDRESS, 1024);
+ if (!baseaddr) {
+ printk("Ioremap to access NAND chip failed\n");
+ err = -EIO;
+ goto out_mtd;
+ }
+
+ /* Set address of NAND IO lines */
+ this->IO_ADDR_R = baseaddr;
+ this->IO_ADDR_W = baseaddr;
+ /* Reference hardware control function */
+ this->hwcontrol = board_hwcontrol;
+ /* Set command delay time, see datasheet for correct value */
+ this->chip_delay = CHIP_DEPENDEND_COMMAND_DELAY;
+ /* Assign the device ready function, if available */
+ this->dev_ready = board_dev_ready;
+ this->eccmode = NAND_ECC_SOFT;
+
+ /* Scan to find existence of the device */
+ if (nand_scan (board_mtd, 1)) {
+ err = -ENXIO;
+ goto out_ior;
+ }
+
+ add_mtd_partitions(board_mtd, partition_info, NUM_PARTITIONS);
+ goto out;
+
+ out_ior:
+ iounmap(baseaddr);
+ out_mtd:
+ kfree (this);
+ out:
+ return err;
+ }
+ module_init(board_init);
+
+
+Exit function
+-------------
+
+The exit function is only necessary if the driver is compiled as a
+module. It releases all resources which are held by the chip driver and
+unregisters the partitions in the MTD layer.
+
+::
+
+ #ifdef MODULE
+ static void __exit board_cleanup (void)
+ {
+ /* Release resources, unregister device */
+ nand_release (board_mtd);
+
+ /* unmap physical address */
+ iounmap(baseaddr);
+
+ /* Free the MTD device structure */
+ kfree (mtd_to_nand(board_mtd));
+ }
+ module_exit(board_cleanup);
+ #endif
+
+
+Advanced board driver functions
+===============================
+
+This chapter describes the advanced functionality of the NAND driver.
+For a list of functions which can be overridden by the board driver see
+the documentation of the nand_chip structure.
+
+Multiple chip control
+---------------------
+
+The nand driver can control chip arrays. Therefore the board driver must
+provide an own select_chip function. This function must (de)select the
+requested chip. The function pointer in the nand_chip structure must be
+set before calling nand_scan(). The maxchip parameter of nand_scan()
+defines the maximum number of chips to scan for. Make sure that the
+select_chip function can handle the requested number of chips.
+
+The nand driver concatenates the chips to one virtual chip and provides
+this virtual chip to the MTD layer.
+
+*Note: The driver can only handle linear chip arrays of equally sized
+chips. There is no support for parallel arrays which extend the
+buswidth.*
+
+*GPIO based example*
+
+::
+
+ static void board_select_chip (struct mtd_info *mtd, int chip)
+ {
+ /* Deselect all chips, set all nCE pins high */
+ GPIO(BOARD_NAND_NCE) |= 0xff;
+ if (chip >= 0)
+ GPIO(BOARD_NAND_NCE) &= ~ (1 << chip);
+ }
+
+
+*Address lines based example.* Its assumed that the nCE pins are
+connected to an address decoder.
+
+::
+
+ static void board_select_chip (struct mtd_info *mtd, int chip)
+ {
+ struct nand_chip *this = mtd_to_nand(mtd);
+
+ /* Deselect all chips */
+ this->IO_ADDR_R &= ~BOARD_NAND_ADDR_MASK;
+ this->IO_ADDR_W &= ~BOARD_NAND_ADDR_MASK;
+ switch (chip) {
+ case 0:
+ this->IO_ADDR_R |= BOARD_NAND_ADDR_CHIP0;
+ this->IO_ADDR_W |= BOARD_NAND_ADDR_CHIP0;
+ break;
+ ....
+ case n:
+ this->IO_ADDR_R |= BOARD_NAND_ADDR_CHIPn;
+ this->IO_ADDR_W |= BOARD_NAND_ADDR_CHIPn;
+ break;
+ }
+ }
+
+
+Hardware ECC support
+--------------------
+
+Functions and constants
+~~~~~~~~~~~~~~~~~~~~~~~
+
+The nand driver supports three different types of hardware ECC.
+
+- NAND_ECC_HW3_256
+
+ Hardware ECC generator providing 3 bytes ECC per 256 byte.
+
+- NAND_ECC_HW3_512
+
+ Hardware ECC generator providing 3 bytes ECC per 512 byte.
+
+- NAND_ECC_HW6_512
+
+ Hardware ECC generator providing 6 bytes ECC per 512 byte.
+
+- NAND_ECC_HW8_512
+
+ Hardware ECC generator providing 6 bytes ECC per 512 byte.
+
+If your hardware generator has a different functionality add it at the
+appropriate place in nand_base.c
+
+The board driver must provide following functions:
+
+- enable_hwecc
+
+ This function is called before reading / writing to the chip. Reset
+ or initialize the hardware generator in this function. The function
+ is called with an argument which let you distinguish between read and
+ write operations.
+
+- calculate_ecc
+
+ This function is called after read / write from / to the chip.
+ Transfer the ECC from the hardware to the buffer. If the option
+ NAND_HWECC_SYNDROME is set then the function is only called on
+ write. See below.
+
+- correct_data
+
+ In case of an ECC error this function is called for error detection
+ and correction. Return 1 respectively 2 in case the error can be
+ corrected. If the error is not correctable return -1. If your
+ hardware generator matches the default algorithm of the nand_ecc
+ software generator then use the correction function provided by
+ nand_ecc instead of implementing duplicated code.
+
+Hardware ECC with syndrome calculation
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Many hardware ECC implementations provide Reed-Solomon codes and
+calculate an error syndrome on read. The syndrome must be converted to a
+standard Reed-Solomon syndrome before calling the error correction code
+in the generic Reed-Solomon library.
+
+The ECC bytes must be placed immediately after the data bytes in order
+to make the syndrome generator work. This is contrary to the usual
+layout used by software ECC. The separation of data and out of band area
+is not longer possible. The nand driver code handles this layout and the
+remaining free bytes in the oob area are managed by the autoplacement
+code. Provide a matching oob-layout in this case. See rts_from4.c and
+diskonchip.c for implementation reference. In those cases we must also
+use bad block tables on FLASH, because the ECC layout is interfering
+with the bad block marker positions. See bad block table support for
+details.
+
+Bad block table support
+-----------------------
+
+Most NAND chips mark the bad blocks at a defined position in the spare
+area. Those blocks must not be erased under any circumstances as the bad
+block information would be lost. It is possible to check the bad block
+mark each time when the blocks are accessed by reading the spare area of
+the first page in the block. This is time consuming so a bad block table
+is used.
+
+The nand driver supports various types of bad block tables.
+
+- Per device
+
+ The bad block table contains all bad block information of the device
+ which can consist of multiple chips.
+
+- Per chip
+
+ A bad block table is used per chip and contains the bad block
+ information for this particular chip.
+
+- Fixed offset
+
+ The bad block table is located at a fixed offset in the chip
+ (device). This applies to various DiskOnChip devices.
+
+- Automatic placed
+
+ The bad block table is automatically placed and detected either at
+ the end or at the beginning of a chip (device)
+
+- Mirrored tables
+
+ The bad block table is mirrored on the chip (device) to allow updates
+ of the bad block table without data loss.
+
+nand_scan() calls the function nand_default_bbt().
+nand_default_bbt() selects appropriate default bad block table
+descriptors depending on the chip information which was retrieved by
+nand_scan().
+
+The standard policy is scanning the device for bad blocks and build a
+ram based bad block table which allows faster access than always
+checking the bad block information on the flash chip itself.
+
+Flash based tables
+~~~~~~~~~~~~~~~~~~
+
+It may be desired or necessary to keep a bad block table in FLASH. For
+AG-AND chips this is mandatory, as they have no factory marked bad
+blocks. They have factory marked good blocks. The marker pattern is
+erased when the block is erased to be reused. So in case of powerloss
+before writing the pattern back to the chip this block would be lost and
+added to the bad blocks. Therefore we scan the chip(s) when we detect
+them the first time for good blocks and store this information in a bad
+block table before erasing any of the blocks.
+
+The blocks in which the tables are stored are protected against
+accidental access by marking them bad in the memory bad block table. The
+bad block table management functions are allowed to circumvent this
+protection.
+
+The simplest way to activate the FLASH based bad block table support is
+to set the option NAND_BBT_USE_FLASH in the bbt_option field of the
+nand chip structure before calling nand_scan(). For AG-AND chips is
+this done by default. This activates the default FLASH based bad block
+table functionality of the NAND driver. The default bad block table
+options are
+
+- Store bad block table per chip
+
+- Use 2 bits per block
+
+- Automatic placement at the end of the chip
+
+- Use mirrored tables with version numbers
+
+- Reserve 4 blocks at the end of the chip
+
+User defined tables
+~~~~~~~~~~~~~~~~~~~
+
+User defined tables are created by filling out a nand_bbt_descr
+structure and storing the pointer in the nand_chip structure member
+bbt_td before calling nand_scan(). If a mirror table is necessary a
+second structure must be created and a pointer to this structure must be
+stored in bbt_md inside the nand_chip structure. If the bbt_md member
+is set to NULL then only the main table is used and no scan for the
+mirrored table is performed.
+
+The most important field in the nand_bbt_descr structure is the
+options field. The options define most of the table properties. Use the
+predefined constants from rawnand.h to define the options.
+
+- Number of bits per block
+
+ The supported number of bits is 1, 2, 4, 8.
+
+- Table per chip
+
+ Setting the constant NAND_BBT_PERCHIP selects that a bad block
+ table is managed for each chip in a chip array. If this option is not
+ set then a per device bad block table is used.
+
+- Table location is absolute
+
+ Use the option constant NAND_BBT_ABSPAGE and define the absolute
+ page number where the bad block table starts in the field pages. If
+ you have selected bad block tables per chip and you have a multi chip
+ array then the start page must be given for each chip in the chip
+ array. Note: there is no scan for a table ident pattern performed, so
+ the fields pattern, veroffs, offs, len can be left uninitialized
+
+- Table location is automatically detected
+
+ The table can either be located in the first or the last good blocks
+ of the chip (device). Set NAND_BBT_LASTBLOCK to place the bad block
+ table at the end of the chip (device). The bad block tables are
+ marked and identified by a pattern which is stored in the spare area
+ of the first page in the block which holds the bad block table. Store
+ a pointer to the pattern in the pattern field. Further the length of
+ the pattern has to be stored in len and the offset in the spare area
+ must be given in the offs member of the nand_bbt_descr structure.
+ For mirrored bad block tables different patterns are mandatory.
+
+- Table creation
+
+ Set the option NAND_BBT_CREATE to enable the table creation if no
+ table can be found during the scan. Usually this is done only once if
+ a new chip is found.
+
+- Table write support
+
+ Set the option NAND_BBT_WRITE to enable the table write support.
+ This allows the update of the bad block table(s) in case a block has
+ to be marked bad due to wear. The MTD interface function
+ block_markbad is calling the update function of the bad block table.
+ If the write support is enabled then the table is updated on FLASH.
+
+ Note: Write support should only be enabled for mirrored tables with
+ version control.
+
+- Table version control
+
+ Set the option NAND_BBT_VERSION to enable the table version
+ control. It's highly recommended to enable this for mirrored tables
+ with write support. It makes sure that the risk of losing the bad
+ block table information is reduced to the loss of the information
+ about the one worn out block which should be marked bad. The version
+ is stored in 4 consecutive bytes in the spare area of the device. The
+ position of the version number is defined by the member veroffs in
+ the bad block table descriptor.
+
+- Save block contents on write
+
+ In case that the block which holds the bad block table does contain
+ other useful information, set the option NAND_BBT_SAVECONTENT. When
+ the bad block table is written then the whole block is read the bad
+ block table is updated and the block is erased and everything is
+ written back. If this option is not set only the bad block table is
+ written and everything else in the block is ignored and erased.
+
+- Number of reserved blocks
+
+ For automatic placement some blocks must be reserved for bad block
+ table storage. The number of reserved blocks is defined in the
+ maxblocks member of the bad block table description structure.
+ Reserving 4 blocks for mirrored tables should be a reasonable number.
+ This also limits the number of blocks which are scanned for the bad
+ block table ident pattern.
+
+Spare area (auto)placement
+--------------------------
+
+The nand driver implements different possibilities for placement of
+filesystem data in the spare area,
+
+- Placement defined by fs driver
+
+- Automatic placement
+
+The default placement function is automatic placement. The nand driver
+has built in default placement schemes for the various chiptypes. If due
+to hardware ECC functionality the default placement does not fit then
+the board driver can provide a own placement scheme.
+
+File system drivers can provide a own placement scheme which is used
+instead of the default placement scheme.
+
+Placement schemes are defined by a nand_oobinfo structure
+
+::
+
+ struct nand_oobinfo {
+ int useecc;
+ int eccbytes;
+ int eccpos[24];
+ int oobfree[8][2];
+ };
+
+
+- useecc
+
+ The useecc member controls the ecc and placement function. The header
+ file include/mtd/mtd-abi.h contains constants to select ecc and
+ placement. MTD_NANDECC_OFF switches off the ecc complete. This is
+ not recommended and available for testing and diagnosis only.
+ MTD_NANDECC_PLACE selects caller defined placement,
+ MTD_NANDECC_AUTOPLACE selects automatic placement.
+
+- eccbytes
+
+ The eccbytes member defines the number of ecc bytes per page.
+
+- eccpos
+
+ The eccpos array holds the byte offsets in the spare area where the
+ ecc codes are placed.
+
+- oobfree
+
+ The oobfree array defines the areas in the spare area which can be
+ used for automatic placement. The information is given in the format
+ {offset, size}. offset defines the start of the usable area, size the
+ length in bytes. More than one area can be defined. The list is
+ terminated by an {0, 0} entry.
+
+Placement defined by fs driver
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The calling function provides a pointer to a nand_oobinfo structure
+which defines the ecc placement. For writes the caller must provide a
+spare area buffer along with the data buffer. The spare area buffer size
+is (number of pages) \* (size of spare area). For reads the buffer size
+is (number of pages) \* ((size of spare area) + (number of ecc steps per
+page) \* sizeof (int)). The driver stores the result of the ecc check
+for each tuple in the spare buffer. The storage sequence is::
+
+ <spare data page 0><ecc result 0>...<ecc result n>
+
+ ...
+
+ <spare data page n><ecc result 0>...<ecc result n>
+
+This is a legacy mode used by YAFFS1.
+
+If the spare area buffer is NULL then only the ECC placement is done
+according to the given scheme in the nand_oobinfo structure.
+
+Automatic placement
+~~~~~~~~~~~~~~~~~~~
+
+Automatic placement uses the built in defaults to place the ecc bytes in
+the spare area. If filesystem data have to be stored / read into the
+spare area then the calling function must provide a buffer. The buffer
+size per page is determined by the oobfree array in the nand_oobinfo
+structure.
+
+If the spare area buffer is NULL then only the ECC placement is done
+according to the default builtin scheme.
+
+Spare area autoplacement default schemes
+----------------------------------------
+
+256 byte pagesize
+~~~~~~~~~~~~~~~~~
+
+======== ================== ===================================================
+Offset Content Comment
+======== ================== ===================================================
+0x00 ECC byte 0 Error correction code byte 0
+0x01 ECC byte 1 Error correction code byte 1
+0x02 ECC byte 2 Error correction code byte 2
+0x03 Autoplace 0
+0x04 Autoplace 1
+0x05 Bad block marker If any bit in this byte is zero, then this
+ block is bad. This applies only to the first
+ page in a block. In the remaining pages this
+ byte is reserved
+0x06 Autoplace 2
+0x07 Autoplace 3
+======== ================== ===================================================
+
+512 byte pagesize
+~~~~~~~~~~~~~~~~~
+
+
+============= ================== ==============================================
+Offset Content Comment
+============= ================== ==============================================
+0x00 ECC byte 0 Error correction code byte 0 of the lower
+ 256 Byte data in this page
+0x01 ECC byte 1 Error correction code byte 1 of the lower
+ 256 Bytes of data in this page
+0x02 ECC byte 2 Error correction code byte 2 of the lower
+ 256 Bytes of data in this page
+0x03 ECC byte 3 Error correction code byte 0 of the upper
+ 256 Bytes of data in this page
+0x04 reserved reserved
+0x05 Bad block marker If any bit in this byte is zero, then this
+ block is bad. This applies only to the first
+ page in a block. In the remaining pages this
+ byte is reserved
+0x06 ECC byte 4 Error correction code byte 1 of the upper
+ 256 Bytes of data in this page
+0x07 ECC byte 5 Error correction code byte 2 of the upper
+ 256 Bytes of data in this page
+0x08 - 0x0F Autoplace 0 - 7
+============= ================== ==============================================
+
+2048 byte pagesize
+~~~~~~~~~~~~~~~~~~
+
+=========== ================== ================================================
+Offset Content Comment
+=========== ================== ================================================
+0x00 Bad block marker If any bit in this byte is zero, then this block
+ is bad. This applies only to the first page in a
+ block. In the remaining pages this byte is
+ reserved
+0x01 Reserved Reserved
+0x02-0x27 Autoplace 0 - 37
+0x28 ECC byte 0 Error correction code byte 0 of the first
+ 256 Byte data in this page
+0x29 ECC byte 1 Error correction code byte 1 of the first
+ 256 Bytes of data in this page
+0x2A ECC byte 2 Error correction code byte 2 of the first
+ 256 Bytes data in this page
+0x2B ECC byte 3 Error correction code byte 0 of the second
+ 256 Bytes of data in this page
+0x2C ECC byte 4 Error correction code byte 1 of the second
+ 256 Bytes of data in this page
+0x2D ECC byte 5 Error correction code byte 2 of the second
+ 256 Bytes of data in this page
+0x2E ECC byte 6 Error correction code byte 0 of the third
+ 256 Bytes of data in this page
+0x2F ECC byte 7 Error correction code byte 1 of the third
+ 256 Bytes of data in this page
+0x30 ECC byte 8 Error correction code byte 2 of the third
+ 256 Bytes of data in this page
+0x31 ECC byte 9 Error correction code byte 0 of the fourth
+ 256 Bytes of data in this page
+0x32 ECC byte 10 Error correction code byte 1 of the fourth
+ 256 Bytes of data in this page
+0x33 ECC byte 11 Error correction code byte 2 of the fourth
+ 256 Bytes of data in this page
+0x34 ECC byte 12 Error correction code byte 0 of the fifth
+ 256 Bytes of data in this page
+0x35 ECC byte 13 Error correction code byte 1 of the fifth
+ 256 Bytes of data in this page
+0x36 ECC byte 14 Error correction code byte 2 of the fifth
+ 256 Bytes of data in this page
+0x37 ECC byte 15 Error correction code byte 0 of the sixth
+ 256 Bytes of data in this page
+0x38 ECC byte 16 Error correction code byte 1 of the sixth
+ 256 Bytes of data in this page
+0x39 ECC byte 17 Error correction code byte 2 of the sixth
+ 256 Bytes of data in this page
+0x3A ECC byte 18 Error correction code byte 0 of the seventh
+ 256 Bytes of data in this page
+0x3B ECC byte 19 Error correction code byte 1 of the seventh
+ 256 Bytes of data in this page
+0x3C ECC byte 20 Error correction code byte 2 of the seventh
+ 256 Bytes of data in this page
+0x3D ECC byte 21 Error correction code byte 0 of the eighth
+ 256 Bytes of data in this page
+0x3E ECC byte 22 Error correction code byte 1 of the eighth
+ 256 Bytes of data in this page
+0x3F ECC byte 23 Error correction code byte 2 of the eighth
+ 256 Bytes of data in this page
+=========== ================== ================================================
+
+Filesystem support
+==================
+
+The NAND driver provides all necessary functions for a filesystem via
+the MTD interface.
+
+Filesystems must be aware of the NAND peculiarities and restrictions.
+One major restrictions of NAND Flash is, that you cannot write as often
+as you want to a page. The consecutive writes to a page, before erasing
+it again, are restricted to 1-3 writes, depending on the manufacturers
+specifications. This applies similar to the spare area.
+
+Therefore NAND aware filesystems must either write in page size chunks
+or hold a writebuffer to collect smaller writes until they sum up to
+pagesize. Available NAND aware filesystems: JFFS2, YAFFS.
+
+The spare area usage to store filesystem data is controlled by the spare
+area placement functionality which is described in one of the earlier
+chapters.
+
+Tools
+=====
+
+The MTD project provides a couple of helpful tools to handle NAND Flash.
+
+- flasherase, flasheraseall: Erase and format FLASH partitions
+
+- nandwrite: write filesystem images to NAND FLASH
+
+- nanddump: dump the contents of a NAND FLASH partitions
+
+These tools are aware of the NAND restrictions. Please use those tools
+instead of complaining about errors which are caused by non NAND aware
+access methods.
+
+Constants
+=========
+
+This chapter describes the constants which might be relevant for a
+driver developer.
+
+Chip option constants
+---------------------
+
+Constants for chip id table
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+These constants are defined in rawnand.h. They are OR-ed together to
+describe the chip functionality::
+
+ /* Buswitdh is 16 bit */
+ #define NAND_BUSWIDTH_16 0x00000002
+ /* Device supports partial programming without padding */
+ #define NAND_NO_PADDING 0x00000004
+ /* Chip has cache program function */
+ #define NAND_CACHEPRG 0x00000008
+ /* Chip has copy back function */
+ #define NAND_COPYBACK 0x00000010
+ /* AND Chip which has 4 banks and a confusing page / block
+ * assignment. See Renesas datasheet for further information */
+ #define NAND_IS_AND 0x00000020
+ /* Chip has a array of 4 pages which can be read without
+ * additional ready /busy waits */
+ #define NAND_4PAGE_ARRAY 0x00000040
+
+
+Constants for runtime options
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+These constants are defined in rawnand.h. They are OR-ed together to
+describe the functionality::
+
+ /* The hw ecc generator provides a syndrome instead a ecc value on read
+ * This can only work if we have the ecc bytes directly behind the
+ * data bytes. Applies for DOC and AG-AND Renesas HW Reed Solomon generators */
+ #define NAND_HWECC_SYNDROME 0x00020000
+
+
+ECC selection constants
+-----------------------
+
+Use these constants to select the ECC algorithm::
+
+ /* No ECC. Usage is not recommended ! */
+ #define NAND_ECC_NONE 0
+ /* Software ECC 3 byte ECC per 256 Byte data */
+ #define NAND_ECC_SOFT 1
+ /* Hardware ECC 3 byte ECC per 256 Byte data */
+ #define NAND_ECC_HW3_256 2
+ /* Hardware ECC 3 byte ECC per 512 Byte data */
+ #define NAND_ECC_HW3_512 3
+ /* Hardware ECC 6 byte ECC per 512 Byte data */
+ #define NAND_ECC_HW6_512 4
+ /* Hardware ECC 6 byte ECC per 512 Byte data */
+ #define NAND_ECC_HW8_512 6
+
+
+Hardware control related constants
+----------------------------------
+
+These constants describe the requested hardware access function when the
+boardspecific hardware control function is called::
+
+ /* Select the chip by setting nCE to low */
+ #define NAND_CTL_SETNCE 1
+ /* Deselect the chip by setting nCE to high */
+ #define NAND_CTL_CLRNCE 2
+ /* Select the command latch by setting CLE to high */
+ #define NAND_CTL_SETCLE 3
+ /* Deselect the command latch by setting CLE to low */
+ #define NAND_CTL_CLRCLE 4
+ /* Select the address latch by setting ALE to high */
+ #define NAND_CTL_SETALE 5
+ /* Deselect the address latch by setting ALE to low */
+ #define NAND_CTL_CLRALE 6
+ /* Set write protection by setting WP to high. Not used! */
+ #define NAND_CTL_SETWP 7
+ /* Clear write protection by setting WP to low. Not used! */
+ #define NAND_CTL_CLRWP 8
+
+
+Bad block table related constants
+---------------------------------
+
+These constants describe the options used for bad block table
+descriptors::
+
+ /* Options for the bad block table descriptors */
+
+ /* The number of bits used per block in the bbt on the device */
+ #define NAND_BBT_NRBITS_MSK 0x0000000F
+ #define NAND_BBT_1BIT 0x00000001
+ #define NAND_BBT_2BIT 0x00000002
+ #define NAND_BBT_4BIT 0x00000004
+ #define NAND_BBT_8BIT 0x00000008
+ /* The bad block table is in the last good block of the device */
+ #define NAND_BBT_LASTBLOCK 0x00000010
+ /* The bbt is at the given page, else we must scan for the bbt */
+ #define NAND_BBT_ABSPAGE 0x00000020
+ /* bbt is stored per chip on multichip devices */
+ #define NAND_BBT_PERCHIP 0x00000080
+ /* bbt has a version counter at offset veroffs */
+ #define NAND_BBT_VERSION 0x00000100
+ /* Create a bbt if none axists */
+ #define NAND_BBT_CREATE 0x00000200
+ /* Write bbt if necessary */
+ #define NAND_BBT_WRITE 0x00001000
+ /* Read and write back block contents when writing bbt */
+ #define NAND_BBT_SAVECONTENT 0x00002000
+
+
+Structures
+==========
+
+This chapter contains the autogenerated documentation of the structures
+which are used in the NAND driver and might be relevant for a driver
+developer. Each struct member has a short description which is marked
+with an [XXX] identifier. See the chapter "Documentation hints" for an
+explanation.
+
+.. kernel-doc:: include/linux/mtd/rawnand.h
+ :internal:
+
+Public Functions Provided
+=========================
+
+This chapter contains the autogenerated documentation of the NAND kernel
+API functions which are exported. Each function has a short description
+which is marked with an [XXX] identifier. See the chapter "Documentation
+hints" for an explanation.
+
+.. kernel-doc:: drivers/mtd/nand/nand_base.c
+ :export:
+
+.. kernel-doc:: drivers/mtd/nand/nand_ecc.c
+ :export:
+
+Internal Functions Provided
+===========================
+
+This chapter contains the autogenerated documentation of the NAND driver
+internal functions. Each function has a short description which is
+marked with an [XXX] identifier. See the chapter "Documentation hints"
+for an explanation. The functions marked with [DEFAULT] might be
+relevant for a board driver developer.
+
+.. kernel-doc:: drivers/mtd/nand/nand_base.c
+ :internal:
+
+.. kernel-doc:: drivers/mtd/nand/nand_bbt.c
+ :internal:
+
+Credits
+=======
+
+The following people have contributed to the NAND driver:
+
+1. Steven J. Hill\ sjhill@realitydiluted.com
+
+2. David Woodhouse\ dwmw2@infradead.org
+
+3. Thomas Gleixner\ tglx@linutronix.de
+
+A lot of users have provided bugfixes, improvements and helping hands
+for testing. Thanks a lot.
+
+The following people have contributed to this document:
+
+1. Thomas Gleixner\ tglx@linutronix.de
diff --git a/Documentation/driver-api/pinctl.rst b/Documentation/driver-api/pinctl.rst
new file mode 100644
index 000000000000..48f15b4f9d3e
--- /dev/null
+++ b/Documentation/driver-api/pinctl.rst
@@ -0,0 +1,1439 @@
+===============================
+PINCTRL (PIN CONTROL) subsystem
+===============================
+
+This document outlines the pin control subsystem in Linux
+
+This subsystem deals with:
+
+- Enumerating and naming controllable pins
+
+- Multiplexing of pins, pads, fingers (etc) see below for details
+
+- Configuration of pins, pads, fingers (etc), such as software-controlled
+ biasing and driving mode specific pins, such as pull-up/down, open drain,
+ load capacitance etc.
+
+Top-level interface
+===================
+
+Definition of PIN CONTROLLER:
+
+- A pin controller is a piece of hardware, usually a set of registers, that
+ can control PINs. It may be able to multiplex, bias, set load capacitance,
+ set drive strength, etc. for individual pins or groups of pins.
+
+Definition of PIN:
+
+- PINS are equal to pads, fingers, balls or whatever packaging input or
+ output line you want to control and these are denoted by unsigned integers
+ in the range 0..maxpin. This numberspace is local to each PIN CONTROLLER, so
+ there may be several such number spaces in a system. This pin space may
+ be sparse - i.e. there may be gaps in the space with numbers where no
+ pin exists.
+
+When a PIN CONTROLLER is instantiated, it will register a descriptor to the
+pin control framework, and this descriptor contains an array of pin descriptors
+describing the pins handled by this specific pin controller.
+
+Here is an example of a PGA (Pin Grid Array) chip seen from underneath::
+
+ A B C D E F G H
+
+ 8 o o o o o o o o
+
+ 7 o o o o o o o o
+
+ 6 o o o o o o o o
+
+ 5 o o o o o o o o
+
+ 4 o o o o o o o o
+
+ 3 o o o o o o o o
+
+ 2 o o o o o o o o
+
+ 1 o o o o o o o o
+
+To register a pin controller and name all the pins on this package we can do
+this in our driver::
+
+ #include <linux/pinctrl/pinctrl.h>
+
+ const struct pinctrl_pin_desc foo_pins[] = {
+ PINCTRL_PIN(0, "A8"),
+ PINCTRL_PIN(1, "B8"),
+ PINCTRL_PIN(2, "C8"),
+ ...
+ PINCTRL_PIN(61, "F1"),
+ PINCTRL_PIN(62, "G1"),
+ PINCTRL_PIN(63, "H1"),
+ };
+
+ static struct pinctrl_desc foo_desc = {
+ .name = "foo",
+ .pins = foo_pins,
+ .npins = ARRAY_SIZE(foo_pins),
+ .owner = THIS_MODULE,
+ };
+
+ int __init foo_probe(void)
+ {
+ int error;
+
+ struct pinctrl_dev *pctl;
+
+ error = pinctrl_register_and_init(&foo_desc, <PARENT>,
+ NULL, &pctl);
+ if (error)
+ return error;
+
+ return pinctrl_enable(pctl);
+ }
+
+To enable the pinctrl subsystem and the subgroups for PINMUX and PINCONF and
+selected drivers, you need to select them from your machine's Kconfig entry,
+since these are so tightly integrated with the machines they are used on.
+See for example arch/arm/mach-u300/Kconfig for an example.
+
+Pins usually have fancier names than this. You can find these in the datasheet
+for your chip. Notice that the core pinctrl.h file provides a fancy macro
+called PINCTRL_PIN() to create the struct entries. As you can see I enumerated
+the pins from 0 in the upper left corner to 63 in the lower right corner.
+This enumeration was arbitrarily chosen, in practice you need to think
+through your numbering system so that it matches the layout of registers
+and such things in your driver, or the code may become complicated. You must
+also consider matching of offsets to the GPIO ranges that may be handled by
+the pin controller.
+
+For a padring with 467 pads, as opposed to actual pins, I used an enumeration
+like this, walking around the edge of the chip, which seems to be industry
+standard too (all these pads had names, too)::
+
+
+ 0 ..... 104
+ 466 105
+ . .
+ . .
+ 358 224
+ 357 .... 225
+
+
+Pin groups
+==========
+
+Many controllers need to deal with groups of pins, so the pin controller
+subsystem has a mechanism for enumerating groups of pins and retrieving the
+actual enumerated pins that are part of a certain group.
+
+For example, say that we have a group of pins dealing with an SPI interface
+on { 0, 8, 16, 24 }, and a group of pins dealing with an I2C interface on pins
+on { 24, 25 }.
+
+These two groups are presented to the pin control subsystem by implementing
+some generic pinctrl_ops like this::
+
+ #include <linux/pinctrl/pinctrl.h>
+
+ struct foo_group {
+ const char *name;
+ const unsigned int *pins;
+ const unsigned num_pins;
+ };
+
+ static const unsigned int spi0_pins[] = { 0, 8, 16, 24 };
+ static const unsigned int i2c0_pins[] = { 24, 25 };
+
+ static const struct foo_group foo_groups[] = {
+ {
+ .name = "spi0_grp",
+ .pins = spi0_pins,
+ .num_pins = ARRAY_SIZE(spi0_pins),
+ },
+ {
+ .name = "i2c0_grp",
+ .pins = i2c0_pins,
+ .num_pins = ARRAY_SIZE(i2c0_pins),
+ },
+ };
+
+
+ static int foo_get_groups_count(struct pinctrl_dev *pctldev)
+ {
+ return ARRAY_SIZE(foo_groups);
+ }
+
+ static const char *foo_get_group_name(struct pinctrl_dev *pctldev,
+ unsigned selector)
+ {
+ return foo_groups[selector].name;
+ }
+
+ static int foo_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector,
+ const unsigned **pins,
+ unsigned *num_pins)
+ {
+ *pins = (unsigned *) foo_groups[selector].pins;
+ *num_pins = foo_groups[selector].num_pins;
+ return 0;
+ }
+
+ static struct pinctrl_ops foo_pctrl_ops = {
+ .get_groups_count = foo_get_groups_count,
+ .get_group_name = foo_get_group_name,
+ .get_group_pins = foo_get_group_pins,
+ };
+
+
+ static struct pinctrl_desc foo_desc = {
+ ...
+ .pctlops = &foo_pctrl_ops,
+ };
+
+The pin control subsystem will call the .get_groups_count() function to
+determine the total number of legal selectors, then it will call the other functions
+to retrieve the name and pins of the group. Maintaining the data structure of
+the groups is up to the driver, this is just a simple example - in practice you
+may need more entries in your group structure, for example specific register
+ranges associated with each group and so on.
+
+
+Pin configuration
+=================
+
+Pins can sometimes be software-configured in various ways, mostly related
+to their electronic properties when used as inputs or outputs. For example you
+may be able to make an output pin high impedance, or "tristate" meaning it is
+effectively disconnected. You may be able to connect an input pin to VDD or GND
+using a certain resistor value - pull up and pull down - so that the pin has a
+stable value when nothing is driving the rail it is connected to, or when it's
+unconnected.
+
+Pin configuration can be programmed by adding configuration entries into the
+mapping table; see section "Board/machine configuration" below.
+
+The format and meaning of the configuration parameter, PLATFORM_X_PULL_UP
+above, is entirely defined by the pin controller driver.
+
+The pin configuration driver implements callbacks for changing pin
+configuration in the pin controller ops like this::
+
+ #include <linux/pinctrl/pinctrl.h>
+ #include <linux/pinctrl/pinconf.h>
+ #include "platform_x_pindefs.h"
+
+ static int foo_pin_config_get(struct pinctrl_dev *pctldev,
+ unsigned offset,
+ unsigned long *config)
+ {
+ struct my_conftype conf;
+
+ ... Find setting for pin @ offset ...
+
+ *config = (unsigned long) conf;
+ }
+
+ static int foo_pin_config_set(struct pinctrl_dev *pctldev,
+ unsigned offset,
+ unsigned long config)
+ {
+ struct my_conftype *conf = (struct my_conftype *) config;
+
+ switch (conf) {
+ case PLATFORM_X_PULL_UP:
+ ...
+ }
+ }
+ }
+
+ static int foo_pin_config_group_get (struct pinctrl_dev *pctldev,
+ unsigned selector,
+ unsigned long *config)
+ {
+ ...
+ }
+
+ static int foo_pin_config_group_set (struct pinctrl_dev *pctldev,
+ unsigned selector,
+ unsigned long config)
+ {
+ ...
+ }
+
+ static struct pinconf_ops foo_pconf_ops = {
+ .pin_config_get = foo_pin_config_get,
+ .pin_config_set = foo_pin_config_set,
+ .pin_config_group_get = foo_pin_config_group_get,
+ .pin_config_group_set = foo_pin_config_group_set,
+ };
+
+ /* Pin config operations are handled by some pin controller */
+ static struct pinctrl_desc foo_desc = {
+ ...
+ .confops = &foo_pconf_ops,
+ };
+
+Since some controllers have special logic for handling entire groups of pins
+they can exploit the special whole-group pin control function. The
+pin_config_group_set() callback is allowed to return the error code -EAGAIN,
+for groups it does not want to handle, or if it just wants to do some
+group-level handling and then fall through to iterate over all pins, in which
+case each individual pin will be treated by separate pin_config_set() calls as
+well.
+
+
+Interaction with the GPIO subsystem
+===================================
+
+The GPIO drivers may want to perform operations of various types on the same
+physical pins that are also registered as pin controller pins.
+
+First and foremost, the two subsystems can be used as completely orthogonal,
+see the section named "pin control requests from drivers" and
+"drivers needing both pin control and GPIOs" below for details. But in some
+situations a cross-subsystem mapping between pins and GPIOs is needed.
+
+Since the pin controller subsystem has its pinspace local to the pin controller
+we need a mapping so that the pin control subsystem can figure out which pin
+controller handles control of a certain GPIO pin. Since a single pin controller
+may be muxing several GPIO ranges (typically SoCs that have one set of pins,
+but internally several GPIO silicon blocks, each modelled as a struct
+gpio_chip) any number of GPIO ranges can be added to a pin controller instance
+like this::
+
+ struct gpio_chip chip_a;
+ struct gpio_chip chip_b;
+
+ static struct pinctrl_gpio_range gpio_range_a = {
+ .name = "chip a",
+ .id = 0,
+ .base = 32,
+ .pin_base = 32,
+ .npins = 16,
+ .gc = &chip_a;
+ };
+
+ static struct pinctrl_gpio_range gpio_range_b = {
+ .name = "chip b",
+ .id = 0,
+ .base = 48,
+ .pin_base = 64,
+ .npins = 8,
+ .gc = &chip_b;
+ };
+
+ {
+ struct pinctrl_dev *pctl;
+ ...
+ pinctrl_add_gpio_range(pctl, &gpio_range_a);
+ pinctrl_add_gpio_range(pctl, &gpio_range_b);
+ }
+
+So this complex system has one pin controller handling two different
+GPIO chips. "chip a" has 16 pins and "chip b" has 8 pins. The "chip a" and
+"chip b" have different .pin_base, which means a start pin number of the
+GPIO range.
+
+The GPIO range of "chip a" starts from the GPIO base of 32 and actual
+pin range also starts from 32. However "chip b" has different starting
+offset for the GPIO range and pin range. The GPIO range of "chip b" starts
+from GPIO number 48, while the pin range of "chip b" starts from 64.
+
+We can convert a gpio number to actual pin number using this "pin_base".
+They are mapped in the global GPIO pin space at:
+
+chip a:
+ - GPIO range : [32 .. 47]
+ - pin range : [32 .. 47]
+chip b:
+ - GPIO range : [48 .. 55]
+ - pin range : [64 .. 71]
+
+The above examples assume the mapping between the GPIOs and pins is
+linear. If the mapping is sparse or haphazard, an array of arbitrary pin
+numbers can be encoded in the range like this::
+
+ static const unsigned range_pins[] = { 14, 1, 22, 17, 10, 8, 6, 2 };
+
+ static struct pinctrl_gpio_range gpio_range = {
+ .name = "chip",
+ .id = 0,
+ .base = 32,
+ .pins = &range_pins,
+ .npins = ARRAY_SIZE(range_pins),
+ .gc = &chip;
+ };
+
+In this case the pin_base property will be ignored. If the name of a pin
+group is known, the pins and npins elements of the above structure can be
+initialised using the function pinctrl_get_group_pins(), e.g. for pin
+group "foo"::
+
+ pinctrl_get_group_pins(pctl, "foo", &gpio_range.pins,
+ &gpio_range.npins);
+
+When GPIO-specific functions in the pin control subsystem are called, these
+ranges will be used to look up the appropriate pin controller by inspecting
+and matching the pin to the pin ranges across all controllers. When a
+pin controller handling the matching range is found, GPIO-specific functions
+will be called on that specific pin controller.
+
+For all functionalities dealing with pin biasing, pin muxing etc, the pin
+controller subsystem will look up the corresponding pin number from the passed
+in gpio number, and use the range's internals to retrieve a pin number. After
+that, the subsystem passes it on to the pin control driver, so the driver
+will get a pin number into its handled number range. Further it is also passed
+the range ID value, so that the pin controller knows which range it should
+deal with.
+
+Calling pinctrl_add_gpio_range from pinctrl driver is DEPRECATED. Please see
+section 2.1 of Documentation/devicetree/bindings/gpio/gpio.txt on how to bind
+pinctrl and gpio drivers.
+
+
+PINMUX interfaces
+=================
+
+These calls use the pinmux_* naming prefix. No other calls should use that
+prefix.
+
+
+What is pinmuxing?
+==================
+
+PINMUX, also known as padmux, ballmux, alternate functions or mission modes
+is a way for chip vendors producing some kind of electrical packages to use
+a certain physical pin (ball, pad, finger, etc) for multiple mutually exclusive
+functions, depending on the application. By "application" in this context
+we usually mean a way of soldering or wiring the package into an electronic
+system, even though the framework makes it possible to also change the function
+at runtime.
+
+Here is an example of a PGA (Pin Grid Array) chip seen from underneath::
+
+ A B C D E F G H
+ +---+
+ 8 | o | o o o o o o o
+ | |
+ 7 | o | o o o o o o o
+ | |
+ 6 | o | o o o o o o o
+ +---+---+
+ 5 | o | o | o o o o o o
+ +---+---+ +---+
+ 4 o o o o o o | o | o
+ | |
+ 3 o o o o o o | o | o
+ | |
+ 2 o o o o o o | o | o
+ +-------+-------+-------+---+---+
+ 1 | o o | o o | o o | o | o |
+ +-------+-------+-------+---+---+
+
+This is not tetris. The game to think of is chess. Not all PGA/BGA packages
+are chessboard-like, big ones have "holes" in some arrangement according to
+different design patterns, but we're using this as a simple example. Of the
+pins you see some will be taken by things like a few VCC and GND to feed power
+to the chip, and quite a few will be taken by large ports like an external
+memory interface. The remaining pins will often be subject to pin multiplexing.
+
+The example 8x8 PGA package above will have pin numbers 0 through 63 assigned
+to its physical pins. It will name the pins { A1, A2, A3 ... H6, H7, H8 } using
+pinctrl_register_pins() and a suitable data set as shown earlier.
+
+In this 8x8 BGA package the pins { A8, A7, A6, A5 } can be used as an SPI port
+(these are four pins: CLK, RXD, TXD, FRM). In that case, pin B5 can be used as
+some general-purpose GPIO pin. However, in another setting, pins { A5, B5 } can
+be used as an I2C port (these are just two pins: SCL, SDA). Needless to say,
+we cannot use the SPI port and I2C port at the same time. However in the inside
+of the package the silicon performing the SPI logic can alternatively be routed
+out on pins { G4, G3, G2, G1 }.
+
+On the bottom row at { A1, B1, C1, D1, E1, F1, G1, H1 } we have something
+special - it's an external MMC bus that can be 2, 4 or 8 bits wide, and it will
+consume 2, 4 or 8 pins respectively, so either { A1, B1 } are taken or
+{ A1, B1, C1, D1 } or all of them. If we use all 8 bits, we cannot use the SPI
+port on pins { G4, G3, G2, G1 } of course.
+
+This way the silicon blocks present inside the chip can be multiplexed "muxed"
+out on different pin ranges. Often contemporary SoC (systems on chip) will
+contain several I2C, SPI, SDIO/MMC, etc silicon blocks that can be routed to
+different pins by pinmux settings.
+
+Since general-purpose I/O pins (GPIO) are typically always in shortage, it is
+common to be able to use almost any pin as a GPIO pin if it is not currently
+in use by some other I/O port.
+
+
+Pinmux conventions
+==================
+
+The purpose of the pinmux functionality in the pin controller subsystem is to
+abstract and provide pinmux settings to the devices you choose to instantiate
+in your machine configuration. It is inspired by the clk, GPIO and regulator
+subsystems, so devices will request their mux setting, but it's also possible
+to request a single pin for e.g. GPIO.
+
+Definitions:
+
+- FUNCTIONS can be switched in and out by a driver residing with the pin
+ control subsystem in the drivers/pinctrl/* directory of the kernel. The
+ pin control driver knows the possible functions. In the example above you can
+ identify three pinmux functions, one for spi, one for i2c and one for mmc.
+
+- FUNCTIONS are assumed to be enumerable from zero in a one-dimensional array.
+ In this case the array could be something like: { spi0, i2c0, mmc0 }
+ for the three available functions.
+
+- FUNCTIONS have PIN GROUPS as defined on the generic level - so a certain
+ function is *always* associated with a certain set of pin groups, could
+ be just a single one, but could also be many. In the example above the
+ function i2c is associated with the pins { A5, B5 }, enumerated as
+ { 24, 25 } in the controller pin space.
+
+ The Function spi is associated with pin groups { A8, A7, A6, A5 }
+ and { G4, G3, G2, G1 }, which are enumerated as { 0, 8, 16, 24 } and
+ { 38, 46, 54, 62 } respectively.
+
+ Group names must be unique per pin controller, no two groups on the same
+ controller may have the same name.
+
+- The combination of a FUNCTION and a PIN GROUP determine a certain function
+ for a certain set of pins. The knowledge of the functions and pin groups
+ and their machine-specific particulars are kept inside the pinmux driver,
+ from the outside only the enumerators are known, and the driver core can
+ request:
+
+ - The name of a function with a certain selector (>= 0)
+ - A list of groups associated with a certain function
+ - That a certain group in that list to be activated for a certain function
+
+ As already described above, pin groups are in turn self-descriptive, so
+ the core will retrieve the actual pin range in a certain group from the
+ driver.
+
+- FUNCTIONS and GROUPS on a certain PIN CONTROLLER are MAPPED to a certain
+ device by the board file, device tree or similar machine setup configuration
+ mechanism, similar to how regulators are connected to devices, usually by
+ name. Defining a pin controller, function and group thus uniquely identify
+ the set of pins to be used by a certain device. (If only one possible group
+ of pins is available for the function, no group name need to be supplied -
+ the core will simply select the first and only group available.)
+
+ In the example case we can define that this particular machine shall
+ use device spi0 with pinmux function fspi0 group gspi0 and i2c0 on function
+ fi2c0 group gi2c0, on the primary pin controller, we get mappings
+ like these::
+
+ {
+ {"map-spi0", spi0, pinctrl0, fspi0, gspi0},
+ {"map-i2c0", i2c0, pinctrl0, fi2c0, gi2c0}
+ }
+
+ Every map must be assigned a state name, pin controller, device and
+ function. The group is not compulsory - if it is omitted the first group
+ presented by the driver as applicable for the function will be selected,
+ which is useful for simple cases.
+
+ It is possible to map several groups to the same combination of device,
+ pin controller and function. This is for cases where a certain function on
+ a certain pin controller may use different sets of pins in different
+ configurations.
+
+- PINS for a certain FUNCTION using a certain PIN GROUP on a certain
+ PIN CONTROLLER are provided on a first-come first-serve basis, so if some
+ other device mux setting or GPIO pin request has already taken your physical
+ pin, you will be denied the use of it. To get (activate) a new setting, the
+ old one has to be put (deactivated) first.
+
+Sometimes the documentation and hardware registers will be oriented around
+pads (or "fingers") rather than pins - these are the soldering surfaces on the
+silicon inside the package, and may or may not match the actual number of
+pins/balls underneath the capsule. Pick some enumeration that makes sense to
+you. Define enumerators only for the pins you can control if that makes sense.
+
+Assumptions:
+
+We assume that the number of possible function maps to pin groups is limited by
+the hardware. I.e. we assume that there is no system where any function can be
+mapped to any pin, like in a phone exchange. So the available pin groups for
+a certain function will be limited to a few choices (say up to eight or so),
+not hundreds or any amount of choices. This is the characteristic we have found
+by inspecting available pinmux hardware, and a necessary assumption since we
+expect pinmux drivers to present *all* possible function vs pin group mappings
+to the subsystem.
+
+
+Pinmux drivers
+==============
+
+The pinmux core takes care of preventing conflicts on pins and calling
+the pin controller driver to execute different settings.
+
+It is the responsibility of the pinmux driver to impose further restrictions
+(say for example infer electronic limitations due to load, etc.) to determine
+whether or not the requested function can actually be allowed, and in case it
+is possible to perform the requested mux setting, poke the hardware so that
+this happens.
+
+Pinmux drivers are required to supply a few callback functions, some are
+optional. Usually the set_mux() function is implemented, writing values into
+some certain registers to activate a certain mux setting for a certain pin.
+
+A simple driver for the above example will work by setting bits 0, 1, 2, 3 or 4
+into some register named MUX to select a certain function with a certain
+group of pins would work something like this::
+
+ #include <linux/pinctrl/pinctrl.h>
+ #include <linux/pinctrl/pinmux.h>
+
+ struct foo_group {
+ const char *name;
+ const unsigned int *pins;
+ const unsigned num_pins;
+ };
+
+ static const unsigned spi0_0_pins[] = { 0, 8, 16, 24 };
+ static const unsigned spi0_1_pins[] = { 38, 46, 54, 62 };
+ static const unsigned i2c0_pins[] = { 24, 25 };
+ static const unsigned mmc0_1_pins[] = { 56, 57 };
+ static const unsigned mmc0_2_pins[] = { 58, 59 };
+ static const unsigned mmc0_3_pins[] = { 60, 61, 62, 63 };
+
+ static const struct foo_group foo_groups[] = {
+ {
+ .name = "spi0_0_grp",
+ .pins = spi0_0_pins,
+ .num_pins = ARRAY_SIZE(spi0_0_pins),
+ },
+ {
+ .name = "spi0_1_grp",
+ .pins = spi0_1_pins,
+ .num_pins = ARRAY_SIZE(spi0_1_pins),
+ },
+ {
+ .name = "i2c0_grp",
+ .pins = i2c0_pins,
+ .num_pins = ARRAY_SIZE(i2c0_pins),
+ },
+ {
+ .name = "mmc0_1_grp",
+ .pins = mmc0_1_pins,
+ .num_pins = ARRAY_SIZE(mmc0_1_pins),
+ },
+ {
+ .name = "mmc0_2_grp",
+ .pins = mmc0_2_pins,
+ .num_pins = ARRAY_SIZE(mmc0_2_pins),
+ },
+ {
+ .name = "mmc0_3_grp",
+ .pins = mmc0_3_pins,
+ .num_pins = ARRAY_SIZE(mmc0_3_pins),
+ },
+ };
+
+
+ static int foo_get_groups_count(struct pinctrl_dev *pctldev)
+ {
+ return ARRAY_SIZE(foo_groups);
+ }
+
+ static const char *foo_get_group_name(struct pinctrl_dev *pctldev,
+ unsigned selector)
+ {
+ return foo_groups[selector].name;
+ }
+
+ static int foo_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector,
+ unsigned ** const pins,
+ unsigned * const num_pins)
+ {
+ *pins = (unsigned *) foo_groups[selector].pins;
+ *num_pins = foo_groups[selector].num_pins;
+ return 0;
+ }
+
+ static struct pinctrl_ops foo_pctrl_ops = {
+ .get_groups_count = foo_get_groups_count,
+ .get_group_name = foo_get_group_name,
+ .get_group_pins = foo_get_group_pins,
+ };
+
+ struct foo_pmx_func {
+ const char *name;
+ const char * const *groups;
+ const unsigned num_groups;
+ };
+
+ static const char * const spi0_groups[] = { "spi0_0_grp", "spi0_1_grp" };
+ static const char * const i2c0_groups[] = { "i2c0_grp" };
+ static const char * const mmc0_groups[] = { "mmc0_1_grp", "mmc0_2_grp",
+ "mmc0_3_grp" };
+
+ static const struct foo_pmx_func foo_functions[] = {
+ {
+ .name = "spi0",
+ .groups = spi0_groups,
+ .num_groups = ARRAY_SIZE(spi0_groups),
+ },
+ {
+ .name = "i2c0",
+ .groups = i2c0_groups,
+ .num_groups = ARRAY_SIZE(i2c0_groups),
+ },
+ {
+ .name = "mmc0",
+ .groups = mmc0_groups,
+ .num_groups = ARRAY_SIZE(mmc0_groups),
+ },
+ };
+
+ static int foo_get_functions_count(struct pinctrl_dev *pctldev)
+ {
+ return ARRAY_SIZE(foo_functions);
+ }
+
+ static const char *foo_get_fname(struct pinctrl_dev *pctldev, unsigned selector)
+ {
+ return foo_functions[selector].name;
+ }
+
+ static int foo_get_groups(struct pinctrl_dev *pctldev, unsigned selector,
+ const char * const **groups,
+ unsigned * const num_groups)
+ {
+ *groups = foo_functions[selector].groups;
+ *num_groups = foo_functions[selector].num_groups;
+ return 0;
+ }
+
+ static int foo_set_mux(struct pinctrl_dev *pctldev, unsigned selector,
+ unsigned group)
+ {
+ u8 regbit = (1 << selector + group);
+
+ writeb((readb(MUX)|regbit), MUX)
+ return 0;
+ }
+
+ static struct pinmux_ops foo_pmxops = {
+ .get_functions_count = foo_get_functions_count,
+ .get_function_name = foo_get_fname,
+ .get_function_groups = foo_get_groups,
+ .set_mux = foo_set_mux,
+ .strict = true,
+ };
+
+ /* Pinmux operations are handled by some pin controller */
+ static struct pinctrl_desc foo_desc = {
+ ...
+ .pctlops = &foo_pctrl_ops,
+ .pmxops = &foo_pmxops,
+ };
+
+In the example activating muxing 0 and 1 at the same time setting bits
+0 and 1, uses one pin in common so they would collide.
+
+The beauty of the pinmux subsystem is that since it keeps track of all
+pins and who is using them, it will already have denied an impossible
+request like that, so the driver does not need to worry about such
+things - when it gets a selector passed in, the pinmux subsystem makes
+sure no other device or GPIO assignment is already using the selected
+pins. Thus bits 0 and 1 in the control register will never be set at the
+same time.
+
+All the above functions are mandatory to implement for a pinmux driver.
+
+
+Pin control interaction with the GPIO subsystem
+===============================================
+
+Note that the following implies that the use case is to use a certain pin
+from the Linux kernel using the API in <linux/gpio.h> with gpio_request()
+and similar functions. There are cases where you may be using something
+that your datasheet calls "GPIO mode", but actually is just an electrical
+configuration for a certain device. See the section below named
+"GPIO mode pitfalls" for more details on this scenario.
+
+The public pinmux API contains two functions named pinctrl_request_gpio()
+and pinctrl_free_gpio(). These two functions shall *ONLY* be called from
+gpiolib-based drivers as part of their gpio_request() and
+gpio_free() semantics. Likewise the pinctrl_gpio_direction_[input|output]
+shall only be called from within respective gpio_direction_[input|output]
+gpiolib implementation.
+
+NOTE that platforms and individual drivers shall *NOT* request GPIO pins to be
+controlled e.g. muxed in. Instead, implement a proper gpiolib driver and have
+that driver request proper muxing and other control for its pins.
+
+The function list could become long, especially if you can convert every
+individual pin into a GPIO pin independent of any other pins, and then try
+the approach to define every pin as a function.
+
+In this case, the function array would become 64 entries for each GPIO
+setting and then the device functions.
+
+For this reason there are two functions a pin control driver can implement
+to enable only GPIO on an individual pin: .gpio_request_enable() and
+.gpio_disable_free().
+
+This function will pass in the affected GPIO range identified by the pin
+controller core, so you know which GPIO pins are being affected by the request
+operation.
+
+If your driver needs to have an indication from the framework of whether the
+GPIO pin shall be used for input or output you can implement the
+.gpio_set_direction() function. As described this shall be called from the
+gpiolib driver and the affected GPIO range, pin offset and desired direction
+will be passed along to this function.
+
+Alternatively to using these special functions, it is fully allowed to use
+named functions for each GPIO pin, the pinctrl_request_gpio() will attempt to
+obtain the function "gpioN" where "N" is the global GPIO pin number if no
+special GPIO-handler is registered.
+
+
+GPIO mode pitfalls
+==================
+
+Due to the naming conventions used by hardware engineers, where "GPIO"
+is taken to mean different things than what the kernel does, the developer
+may be confused by a datasheet talking about a pin being possible to set
+into "GPIO mode". It appears that what hardware engineers mean with
+"GPIO mode" is not necessarily the use case that is implied in the kernel
+interface <linux/gpio.h>: a pin that you grab from kernel code and then
+either listen for input or drive high/low to assert/deassert some
+external line.
+
+Rather hardware engineers think that "GPIO mode" means that you can
+software-control a few electrical properties of the pin that you would
+not be able to control if the pin was in some other mode, such as muxed in
+for a device.
+
+The GPIO portions of a pin and its relation to a certain pin controller
+configuration and muxing logic can be constructed in several ways. Here
+are two examples::
+
+ (A)
+ pin config
+ logic regs
+ | +- SPI
+ Physical pins --- pad --- pinmux -+- I2C
+ | +- mmc
+ | +- GPIO
+ pin
+ multiplex
+ logic regs
+
+Here some electrical properties of the pin can be configured no matter
+whether the pin is used for GPIO or not. If you multiplex a GPIO onto a
+pin, you can also drive it high/low from "GPIO" registers.
+Alternatively, the pin can be controlled by a certain peripheral, while
+still applying desired pin config properties. GPIO functionality is thus
+orthogonal to any other device using the pin.
+
+In this arrangement the registers for the GPIO portions of the pin controller,
+or the registers for the GPIO hardware module are likely to reside in a
+separate memory range only intended for GPIO driving, and the register
+range dealing with pin config and pin multiplexing get placed into a
+different memory range and a separate section of the data sheet.
+
+A flag "strict" in struct pinmux_ops is available to check and deny
+simultaneous access to the same pin from GPIO and pin multiplexing
+consumers on hardware of this type. The pinctrl driver should set this flag
+accordingly.
+
+::
+
+ (B)
+
+ pin config
+ logic regs
+ | +- SPI
+ Physical pins --- pad --- pinmux -+- I2C
+ | | +- mmc
+ | |
+ GPIO pin
+ multiplex
+ logic regs
+
+In this arrangement, the GPIO functionality can always be enabled, such that
+e.g. a GPIO input can be used to "spy" on the SPI/I2C/MMC signal while it is
+pulsed out. It is likely possible to disrupt the traffic on the pin by doing
+wrong things on the GPIO block, as it is never really disconnected. It is
+possible that the GPIO, pin config and pin multiplex registers are placed into
+the same memory range and the same section of the data sheet, although that
+need not be the case.
+
+In some pin controllers, although the physical pins are designed in the same
+way as (B), the GPIO function still can't be enabled at the same time as the
+peripheral functions. So again the "strict" flag should be set, denying
+simultaneous activation by GPIO and other muxed in devices.
+
+From a kernel point of view, however, these are different aspects of the
+hardware and shall be put into different subsystems:
+
+- Registers (or fields within registers) that control electrical
+ properties of the pin such as biasing and drive strength should be
+ exposed through the pinctrl subsystem, as "pin configuration" settings.
+
+- Registers (or fields within registers) that control muxing of signals
+ from various other HW blocks (e.g. I2C, MMC, or GPIO) onto pins should
+ be exposed through the pinctrl subsystem, as mux functions.
+
+- Registers (or fields within registers) that control GPIO functionality
+ such as setting a GPIO's output value, reading a GPIO's input value, or
+ setting GPIO pin direction should be exposed through the GPIO subsystem,
+ and if they also support interrupt capabilities, through the irqchip
+ abstraction.
+
+Depending on the exact HW register design, some functions exposed by the
+GPIO subsystem may call into the pinctrl subsystem in order to
+co-ordinate register settings across HW modules. In particular, this may
+be needed for HW with separate GPIO and pin controller HW modules, where
+e.g. GPIO direction is determined by a register in the pin controller HW
+module rather than the GPIO HW module.
+
+Electrical properties of the pin such as biasing and drive strength
+may be placed at some pin-specific register in all cases or as part
+of the GPIO register in case (B) especially. This doesn't mean that such
+properties necessarily pertain to what the Linux kernel calls "GPIO".
+
+Example: a pin is usually muxed in to be used as a UART TX line. But during
+system sleep, we need to put this pin into "GPIO mode" and ground it.
+
+If you make a 1-to-1 map to the GPIO subsystem for this pin, you may start
+to think that you need to come up with something really complex, that the
+pin shall be used for UART TX and GPIO at the same time, that you will grab
+a pin control handle and set it to a certain state to enable UART TX to be
+muxed in, then twist it over to GPIO mode and use gpio_direction_output()
+to drive it low during sleep, then mux it over to UART TX again when you
+wake up and maybe even gpio_request/gpio_free as part of this cycle. This
+all gets very complicated.
+
+The solution is to not think that what the datasheet calls "GPIO mode"
+has to be handled by the <linux/gpio.h> interface. Instead view this as
+a certain pin config setting. Look in e.g. <linux/pinctrl/pinconf-generic.h>
+and you find this in the documentation:
+
+ PIN_CONFIG_OUTPUT:
+ this will configure the pin in output, use argument
+ 1 to indicate high level, argument 0 to indicate low level.
+
+So it is perfectly possible to push a pin into "GPIO mode" and drive the
+line low as part of the usual pin control map. So for example your UART
+driver may look like this::
+
+ #include <linux/pinctrl/consumer.h>
+
+ struct pinctrl *pinctrl;
+ struct pinctrl_state *pins_default;
+ struct pinctrl_state *pins_sleep;
+
+ pins_default = pinctrl_lookup_state(uap->pinctrl, PINCTRL_STATE_DEFAULT);
+ pins_sleep = pinctrl_lookup_state(uap->pinctrl, PINCTRL_STATE_SLEEP);
+
+ /* Normal mode */
+ retval = pinctrl_select_state(pinctrl, pins_default);
+ /* Sleep mode */
+ retval = pinctrl_select_state(pinctrl, pins_sleep);
+
+And your machine configuration may look like this:
+--------------------------------------------------
+
+::
+
+ static unsigned long uart_default_mode[] = {
+ PIN_CONF_PACKED(PIN_CONFIG_DRIVE_PUSH_PULL, 0),
+ };
+
+ static unsigned long uart_sleep_mode[] = {
+ PIN_CONF_PACKED(PIN_CONFIG_OUTPUT, 0),
+ };
+
+ static struct pinctrl_map pinmap[] __initdata = {
+ PIN_MAP_MUX_GROUP("uart", PINCTRL_STATE_DEFAULT, "pinctrl-foo",
+ "u0_group", "u0"),
+ PIN_MAP_CONFIGS_PIN("uart", PINCTRL_STATE_DEFAULT, "pinctrl-foo",
+ "UART_TX_PIN", uart_default_mode),
+ PIN_MAP_MUX_GROUP("uart", PINCTRL_STATE_SLEEP, "pinctrl-foo",
+ "u0_group", "gpio-mode"),
+ PIN_MAP_CONFIGS_PIN("uart", PINCTRL_STATE_SLEEP, "pinctrl-foo",
+ "UART_TX_PIN", uart_sleep_mode),
+ };
+
+ foo_init(void) {
+ pinctrl_register_mappings(pinmap, ARRAY_SIZE(pinmap));
+ }
+
+Here the pins we want to control are in the "u0_group" and there is some
+function called "u0" that can be enabled on this group of pins, and then
+everything is UART business as usual. But there is also some function
+named "gpio-mode" that can be mapped onto the same pins to move them into
+GPIO mode.
+
+This will give the desired effect without any bogus interaction with the
+GPIO subsystem. It is just an electrical configuration used by that device
+when going to sleep, it might imply that the pin is set into something the
+datasheet calls "GPIO mode", but that is not the point: it is still used
+by that UART device to control the pins that pertain to that very UART
+driver, putting them into modes needed by the UART. GPIO in the Linux
+kernel sense are just some 1-bit line, and is a different use case.
+
+How the registers are poked to attain the push or pull, and output low
+configuration and the muxing of the "u0" or "gpio-mode" group onto these
+pins is a question for the driver.
+
+Some datasheets will be more helpful and refer to the "GPIO mode" as
+"low power mode" rather than anything to do with GPIO. This often means
+the same thing electrically speaking, but in this latter case the
+software engineers will usually quickly identify that this is some
+specific muxing or configuration rather than anything related to the GPIO
+API.
+
+
+Board/machine configuration
+===========================
+
+Boards and machines define how a certain complete running system is put
+together, including how GPIOs and devices are muxed, how regulators are
+constrained and how the clock tree looks. Of course pinmux settings are also
+part of this.
+
+A pin controller configuration for a machine looks pretty much like a simple
+regulator configuration, so for the example array above we want to enable i2c
+and spi on the second function mapping::
+
+ #include <linux/pinctrl/machine.h>
+
+ static const struct pinctrl_map mapping[] __initconst = {
+ {
+ .dev_name = "foo-spi.0",
+ .name = PINCTRL_STATE_DEFAULT,
+ .type = PIN_MAP_TYPE_MUX_GROUP,
+ .ctrl_dev_name = "pinctrl-foo",
+ .data.mux.function = "spi0",
+ },
+ {
+ .dev_name = "foo-i2c.0",
+ .name = PINCTRL_STATE_DEFAULT,
+ .type = PIN_MAP_TYPE_MUX_GROUP,
+ .ctrl_dev_name = "pinctrl-foo",
+ .data.mux.function = "i2c0",
+ },
+ {
+ .dev_name = "foo-mmc.0",
+ .name = PINCTRL_STATE_DEFAULT,
+ .type = PIN_MAP_TYPE_MUX_GROUP,
+ .ctrl_dev_name = "pinctrl-foo",
+ .data.mux.function = "mmc0",
+ },
+ };
+
+The dev_name here matches to the unique device name that can be used to look
+up the device struct (just like with clockdev or regulators). The function name
+must match a function provided by the pinmux driver handling this pin range.
+
+As you can see we may have several pin controllers on the system and thus
+we need to specify which one of them contains the functions we wish to map.
+
+You register this pinmux mapping to the pinmux subsystem by simply::
+
+ ret = pinctrl_register_mappings(mapping, ARRAY_SIZE(mapping));
+
+Since the above construct is pretty common there is a helper macro to make
+it even more compact which assumes you want to use pinctrl-foo and position
+0 for mapping, for example::
+
+ static struct pinctrl_map mapping[] __initdata = {
+ PIN_MAP_MUX_GROUP("foo-i2c.o", PINCTRL_STATE_DEFAULT,
+ "pinctrl-foo", NULL, "i2c0"),
+ };
+
+The mapping table may also contain pin configuration entries. It's common for
+each pin/group to have a number of configuration entries that affect it, so
+the table entries for configuration reference an array of config parameters
+and values. An example using the convenience macros is shown below::
+
+ static unsigned long i2c_grp_configs[] = {
+ FOO_PIN_DRIVEN,
+ FOO_PIN_PULLUP,
+ };
+
+ static unsigned long i2c_pin_configs[] = {
+ FOO_OPEN_COLLECTOR,
+ FOO_SLEW_RATE_SLOW,
+ };
+
+ static struct pinctrl_map mapping[] __initdata = {
+ PIN_MAP_MUX_GROUP("foo-i2c.0", PINCTRL_STATE_DEFAULT,
+ "pinctrl-foo", "i2c0", "i2c0"),
+ PIN_MAP_CONFIGS_GROUP("foo-i2c.0", PINCTRL_STATE_DEFAULT,
+ "pinctrl-foo", "i2c0", i2c_grp_configs),
+ PIN_MAP_CONFIGS_PIN("foo-i2c.0", PINCTRL_STATE_DEFAULT,
+ "pinctrl-foo", "i2c0scl", i2c_pin_configs),
+ PIN_MAP_CONFIGS_PIN("foo-i2c.0", PINCTRL_STATE_DEFAULT,
+ "pinctrl-foo", "i2c0sda", i2c_pin_configs),
+ };
+
+Finally, some devices expect the mapping table to contain certain specific
+named states. When running on hardware that doesn't need any pin controller
+configuration, the mapping table must still contain those named states, in
+order to explicitly indicate that the states were provided and intended to
+be empty. Table entry macro PIN_MAP_DUMMY_STATE serves the purpose of defining
+a named state without causing any pin controller to be programmed::
+
+ static struct pinctrl_map mapping[] __initdata = {
+ PIN_MAP_DUMMY_STATE("foo-i2c.0", PINCTRL_STATE_DEFAULT),
+ };
+
+
+Complex mappings
+================
+
+As it is possible to map a function to different groups of pins an optional
+.group can be specified like this::
+
+ ...
+ {
+ .dev_name = "foo-spi.0",
+ .name = "spi0-pos-A",
+ .type = PIN_MAP_TYPE_MUX_GROUP,
+ .ctrl_dev_name = "pinctrl-foo",
+ .function = "spi0",
+ .group = "spi0_0_grp",
+ },
+ {
+ .dev_name = "foo-spi.0",
+ .name = "spi0-pos-B",
+ .type = PIN_MAP_TYPE_MUX_GROUP,
+ .ctrl_dev_name = "pinctrl-foo",
+ .function = "spi0",
+ .group = "spi0_1_grp",
+ },
+ ...
+
+This example mapping is used to switch between two positions for spi0 at
+runtime, as described further below under the heading "Runtime pinmuxing".
+
+Further it is possible for one named state to affect the muxing of several
+groups of pins, say for example in the mmc0 example above, where you can
+additively expand the mmc0 bus from 2 to 4 to 8 pins. If we want to use all
+three groups for a total of 2+2+4 = 8 pins (for an 8-bit MMC bus as is the
+case), we define a mapping like this::
+
+ ...
+ {
+ .dev_name = "foo-mmc.0",
+ .name = "2bit"
+ .type = PIN_MAP_TYPE_MUX_GROUP,
+ .ctrl_dev_name = "pinctrl-foo",
+ .function = "mmc0",
+ .group = "mmc0_1_grp",
+ },
+ {
+ .dev_name = "foo-mmc.0",
+ .name = "4bit"
+ .type = PIN_MAP_TYPE_MUX_GROUP,
+ .ctrl_dev_name = "pinctrl-foo",
+ .function = "mmc0",
+ .group = "mmc0_1_grp",
+ },
+ {
+ .dev_name = "foo-mmc.0",
+ .name = "4bit"
+ .type = PIN_MAP_TYPE_MUX_GROUP,
+ .ctrl_dev_name = "pinctrl-foo",
+ .function = "mmc0",
+ .group = "mmc0_2_grp",
+ },
+ {
+ .dev_name = "foo-mmc.0",
+ .name = "8bit"
+ .type = PIN_MAP_TYPE_MUX_GROUP,
+ .ctrl_dev_name = "pinctrl-foo",
+ .function = "mmc0",
+ .group = "mmc0_1_grp",
+ },
+ {
+ .dev_name = "foo-mmc.0",
+ .name = "8bit"
+ .type = PIN_MAP_TYPE_MUX_GROUP,
+ .ctrl_dev_name = "pinctrl-foo",
+ .function = "mmc0",
+ .group = "mmc0_2_grp",
+ },
+ {
+ .dev_name = "foo-mmc.0",
+ .name = "8bit"
+ .type = PIN_MAP_TYPE_MUX_GROUP,
+ .ctrl_dev_name = "pinctrl-foo",
+ .function = "mmc0",
+ .group = "mmc0_3_grp",
+ },
+ ...
+
+The result of grabbing this mapping from the device with something like
+this (see next paragraph)::
+
+ p = devm_pinctrl_get(dev);
+ s = pinctrl_lookup_state(p, "8bit");
+ ret = pinctrl_select_state(p, s);
+
+or more simply::
+
+ p = devm_pinctrl_get_select(dev, "8bit");
+
+Will be that you activate all the three bottom records in the mapping at
+once. Since they share the same name, pin controller device, function and
+device, and since we allow multiple groups to match to a single device, they
+all get selected, and they all get enabled and disable simultaneously by the
+pinmux core.
+
+
+Pin control requests from drivers
+=================================
+
+When a device driver is about to probe the device core will automatically
+attempt to issue pinctrl_get_select_default() on these devices.
+This way driver writers do not need to add any of the boilerplate code
+of the type found below. However when doing fine-grained state selection
+and not using the "default" state, you may have to do some device driver
+handling of the pinctrl handles and states.
+
+So if you just want to put the pins for a certain device into the default
+state and be done with it, there is nothing you need to do besides
+providing the proper mapping table. The device core will take care of
+the rest.
+
+Generally it is discouraged to let individual drivers get and enable pin
+control. So if possible, handle the pin control in platform code or some other
+place where you have access to all the affected struct device * pointers. In
+some cases where a driver needs to e.g. switch between different mux mappings
+at runtime this is not possible.
+
+A typical case is if a driver needs to switch bias of pins from normal
+operation and going to sleep, moving from the PINCTRL_STATE_DEFAULT to
+PINCTRL_STATE_SLEEP at runtime, re-biasing or even re-muxing pins to save
+current in sleep mode.
+
+A driver may request a certain control state to be activated, usually just the
+default state like this::
+
+ #include <linux/pinctrl/consumer.h>
+
+ struct foo_state {
+ struct pinctrl *p;
+ struct pinctrl_state *s;
+ ...
+ };
+
+ foo_probe()
+ {
+ /* Allocate a state holder named "foo" etc */
+ struct foo_state *foo = ...;
+
+ foo->p = devm_pinctrl_get(&device);
+ if (IS_ERR(foo->p)) {
+ /* FIXME: clean up "foo" here */
+ return PTR_ERR(foo->p);
+ }
+
+ foo->s = pinctrl_lookup_state(foo->p, PINCTRL_STATE_DEFAULT);
+ if (IS_ERR(foo->s)) {
+ /* FIXME: clean up "foo" here */
+ return PTR_ERR(s);
+ }
+
+ ret = pinctrl_select_state(foo->s);
+ if (ret < 0) {
+ /* FIXME: clean up "foo" here */
+ return ret;
+ }
+ }
+
+This get/lookup/select/put sequence can just as well be handled by bus drivers
+if you don't want each and every driver to handle it and you know the
+arrangement on your bus.
+
+The semantics of the pinctrl APIs are:
+
+- pinctrl_get() is called in process context to obtain a handle to all pinctrl
+ information for a given client device. It will allocate a struct from the
+ kernel memory to hold the pinmux state. All mapping table parsing or similar
+ slow operations take place within this API.
+
+- devm_pinctrl_get() is a variant of pinctrl_get() that causes pinctrl_put()
+ to be called automatically on the retrieved pointer when the associated
+ device is removed. It is recommended to use this function over plain
+ pinctrl_get().
+
+- pinctrl_lookup_state() is called in process context to obtain a handle to a
+ specific state for a client device. This operation may be slow, too.
+
+- pinctrl_select_state() programs pin controller hardware according to the
+ definition of the state as given by the mapping table. In theory, this is a
+ fast-path operation, since it only involved blasting some register settings
+ into hardware. However, note that some pin controllers may have their
+ registers on a slow/IRQ-based bus, so client devices should not assume they
+ can call pinctrl_select_state() from non-blocking contexts.
+
+- pinctrl_put() frees all information associated with a pinctrl handle.
+
+- devm_pinctrl_put() is a variant of pinctrl_put() that may be used to
+ explicitly destroy a pinctrl object returned by devm_pinctrl_get().
+ However, use of this function will be rare, due to the automatic cleanup
+ that will occur even without calling it.
+
+ pinctrl_get() must be paired with a plain pinctrl_put().
+ pinctrl_get() may not be paired with devm_pinctrl_put().
+ devm_pinctrl_get() can optionally be paired with devm_pinctrl_put().
+ devm_pinctrl_get() may not be paired with plain pinctrl_put().
+
+Usually the pin control core handled the get/put pair and call out to the
+device drivers bookkeeping operations, like checking available functions and
+the associated pins, whereas select_state pass on to the pin controller
+driver which takes care of activating and/or deactivating the mux setting by
+quickly poking some registers.
+
+The pins are allocated for your device when you issue the devm_pinctrl_get()
+call, after this you should be able to see this in the debugfs listing of all
+pins.
+
+NOTE: the pinctrl system will return -EPROBE_DEFER if it cannot find the
+requested pinctrl handles, for example if the pinctrl driver has not yet
+registered. Thus make sure that the error path in your driver gracefully
+cleans up and is ready to retry the probing later in the startup process.
+
+
+Drivers needing both pin control and GPIOs
+==========================================
+
+Again, it is discouraged to let drivers lookup and select pin control states
+themselves, but again sometimes this is unavoidable.
+
+So say that your driver is fetching its resources like this::
+
+ #include <linux/pinctrl/consumer.h>
+ #include <linux/gpio.h>
+
+ struct pinctrl *pinctrl;
+ int gpio;
+
+ pinctrl = devm_pinctrl_get_select_default(&dev);
+ gpio = devm_gpio_request(&dev, 14, "foo");
+
+Here we first request a certain pin state and then request GPIO 14 to be
+used. If you're using the subsystems orthogonally like this, you should
+nominally always get your pinctrl handle and select the desired pinctrl
+state BEFORE requesting the GPIO. This is a semantic convention to avoid
+situations that can be electrically unpleasant, you will certainly want to
+mux in and bias pins in a certain way before the GPIO subsystems starts to
+deal with them.
+
+The above can be hidden: using the device core, the pinctrl core may be
+setting up the config and muxing for the pins right before the device is
+probing, nevertheless orthogonal to the GPIO subsystem.
+
+But there are also situations where it makes sense for the GPIO subsystem
+to communicate directly with the pinctrl subsystem, using the latter as a
+back-end. This is when the GPIO driver may call out to the functions
+described in the section "Pin control interaction with the GPIO subsystem"
+above. This only involves per-pin multiplexing, and will be completely
+hidden behind the gpio_*() function namespace. In this case, the driver
+need not interact with the pin control subsystem at all.
+
+If a pin control driver and a GPIO driver is dealing with the same pins
+and the use cases involve multiplexing, you MUST implement the pin controller
+as a back-end for the GPIO driver like this, unless your hardware design
+is such that the GPIO controller can override the pin controller's
+multiplexing state through hardware without the need to interact with the
+pin control system.
+
+
+System pin control hogging
+==========================
+
+Pin control map entries can be hogged by the core when the pin controller
+is registered. This means that the core will attempt to call pinctrl_get(),
+lookup_state() and select_state() on it immediately after the pin control
+device has been registered.
+
+This occurs for mapping table entries where the client device name is equal
+to the pin controller device name, and the state name is PINCTRL_STATE_DEFAULT::
+
+ {
+ .dev_name = "pinctrl-foo",
+ .name = PINCTRL_STATE_DEFAULT,
+ .type = PIN_MAP_TYPE_MUX_GROUP,
+ .ctrl_dev_name = "pinctrl-foo",
+ .function = "power_func",
+ },
+
+Since it may be common to request the core to hog a few always-applicable
+mux settings on the primary pin controller, there is a convenience macro for
+this::
+
+ PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-foo", NULL /* group */,
+ "power_func")
+
+This gives the exact same result as the above construction.
+
+
+Runtime pinmuxing
+=================
+
+It is possible to mux a certain function in and out at runtime, say to move
+an SPI port from one set of pins to another set of pins. Say for example for
+spi0 in the example above, we expose two different groups of pins for the same
+function, but with different named in the mapping as described under
+"Advanced mapping" above. So that for an SPI device, we have two states named
+"pos-A" and "pos-B".
+
+This snippet first initializes a state object for both groups (in foo_probe()),
+then muxes the function in the pins defined by group A, and finally muxes it in
+on the pins defined by group B::
+
+ #include <linux/pinctrl/consumer.h>
+
+ struct pinctrl *p;
+ struct pinctrl_state *s1, *s2;
+
+ foo_probe()
+ {
+ /* Setup */
+ p = devm_pinctrl_get(&device);
+ if (IS_ERR(p))
+ ...
+
+ s1 = pinctrl_lookup_state(foo->p, "pos-A");
+ if (IS_ERR(s1))
+ ...
+
+ s2 = pinctrl_lookup_state(foo->p, "pos-B");
+ if (IS_ERR(s2))
+ ...
+ }
+
+ foo_switch()
+ {
+ /* Enable on position A */
+ ret = pinctrl_select_state(s1);
+ if (ret < 0)
+ ...
+
+ ...
+
+ /* Enable on position B */
+ ret = pinctrl_select_state(s2);
+ if (ret < 0)
+ ...
+
+ ...
+ }
+
+The above has to be done from process context. The reservation of the pins
+will be done when the state is activated, so in effect one specific pin
+can be used by different functions at different times on a running system.
diff --git a/Documentation/driver-api/pm/devices.rst b/Documentation/driver-api/pm/devices.rst
index bedd32388dac..a0dc2879a152 100644
--- a/Documentation/driver-api/pm/devices.rst
+++ b/Documentation/driver-api/pm/devices.rst
@@ -675,7 +675,7 @@ sub-domain of the parent domain.
Support for power domains is provided through the :c:member:`pm_domain` field of
|struct device|. This field is a pointer to an object of type
-|struct dev_pm_domain|, defined in :file:`include/linux/pm.h``, providing a set
+|struct dev_pm_domain|, defined in :file:`include/linux/pm.h`, providing a set
of power management callbacks analogous to the subsystem-level and device driver
callbacks that are executed for the given device during all power transitions,
instead of the respective subsystem-level callbacks. Specifically, if a
diff --git a/Documentation/driver-api/rapidio.rst b/Documentation/driver-api/rapidio.rst
new file mode 100644
index 000000000000..71ff658ab78e
--- /dev/null
+++ b/Documentation/driver-api/rapidio.rst
@@ -0,0 +1,107 @@
+=======================
+RapidIO Subsystem Guide
+=======================
+
+:Author: Matt Porter
+
+Introduction
+============
+
+RapidIO is a high speed switched fabric interconnect with features aimed
+at the embedded market. RapidIO provides support for memory-mapped I/O
+as well as message-based transactions over the switched fabric network.
+RapidIO has a standardized discovery mechanism not unlike the PCI bus
+standard that allows simple detection of devices in a network.
+
+This documentation is provided for developers intending to support
+RapidIO on new architectures, write new drivers, or to understand the
+subsystem internals.
+
+Known Bugs and Limitations
+==========================
+
+Bugs
+----
+
+None. ;)
+
+Limitations
+-----------
+
+1. Access/management of RapidIO memory regions is not supported
+
+2. Multiple host enumeration is not supported
+
+RapidIO driver interface
+========================
+
+Drivers are provided a set of calls in order to interface with the
+subsystem to gather info on devices, request/map memory region
+resources, and manage mailboxes/doorbells.
+
+Functions
+---------
+
+.. kernel-doc:: include/linux/rio_drv.h
+ :internal:
+
+.. kernel-doc:: drivers/rapidio/rio-driver.c
+ :export:
+
+.. kernel-doc:: drivers/rapidio/rio.c
+ :export:
+
+Internals
+=========
+
+This chapter contains the autogenerated documentation of the RapidIO
+subsystem.
+
+Structures
+----------
+
+.. kernel-doc:: include/linux/rio.h
+ :internal:
+
+Enumeration and Discovery
+-------------------------
+
+.. kernel-doc:: drivers/rapidio/rio-scan.c
+ :internal:
+
+Driver functionality
+--------------------
+
+.. kernel-doc:: drivers/rapidio/rio.c
+ :internal:
+
+.. kernel-doc:: drivers/rapidio/rio-access.c
+ :internal:
+
+Device model support
+--------------------
+
+.. kernel-doc:: drivers/rapidio/rio-driver.c
+ :internal:
+
+PPC32 support
+-------------
+
+.. kernel-doc:: arch/powerpc/sysdev/fsl_rio.c
+ :internal:
+
+Credits
+=======
+
+The following people have contributed to the RapidIO subsystem directly
+or indirectly:
+
+1. Matt Porter\ mporter@kernel.crashing.org
+
+2. Randy Vinson\ rvinson@mvista.com
+
+3. Dan Malek\ dan@embeddedalley.com
+
+The following people have contributed to this document:
+
+1. Matt Porter\ mporter@kernel.crashing.org
diff --git a/Documentation/driver-api/s390-drivers.rst b/Documentation/driver-api/s390-drivers.rst
new file mode 100644
index 000000000000..ecf8851d3565
--- /dev/null
+++ b/Documentation/driver-api/s390-drivers.rst
@@ -0,0 +1,111 @@
+===================================
+Writing s390 channel device drivers
+===================================
+
+:Author: Cornelia Huck
+
+Introduction
+============
+
+This document describes the interfaces available for device drivers that
+drive s390 based channel attached I/O devices. This includes interfaces
+for interaction with the hardware and interfaces for interacting with
+the common driver core. Those interfaces are provided by the s390 common
+I/O layer.
+
+The document assumes a familarity with the technical terms associated
+with the s390 channel I/O architecture. For a description of this
+architecture, please refer to the "z/Architecture: Principles of
+Operation", IBM publication no. SA22-7832.
+
+While most I/O devices on a s390 system are typically driven through the
+channel I/O mechanism described here, there are various other methods
+(like the diag interface). These are out of the scope of this document.
+
+Some additional information can also be found in the kernel source under
+Documentation/s390/driver-model.txt.
+
+The ccw bus
+===========
+
+The ccw bus typically contains the majority of devices available to a
+s390 system. Named after the channel command word (ccw), the basic
+command structure used to address its devices, the ccw bus contains
+so-called channel attached devices. They are addressed via I/O
+subchannels, visible on the css bus. A device driver for
+channel-attached devices, however, will never interact with the
+subchannel directly, but only via the I/O device on the ccw bus, the ccw
+device.
+
+I/O functions for channel-attached devices
+------------------------------------------
+
+Some hardware structures have been translated into C structures for use
+by the common I/O layer and device drivers. For more information on the
+hardware structures represented here, please consult the Principles of
+Operation.
+
+.. kernel-doc:: arch/s390/include/asm/cio.h
+ :internal:
+
+ccw devices
+-----------
+
+Devices that want to initiate channel I/O need to attach to the ccw bus.
+Interaction with the driver core is done via the common I/O layer, which
+provides the abstractions of ccw devices and ccw device drivers.
+
+The functions that initiate or terminate channel I/O all act upon a ccw
+device structure. Device drivers must not bypass those functions or
+strange side effects may happen.
+
+.. kernel-doc:: arch/s390/include/asm/ccwdev.h
+ :internal:
+
+.. kernel-doc:: drivers/s390/cio/device.c
+ :export:
+
+.. kernel-doc:: drivers/s390/cio/device_ops.c
+ :export:
+
+The channel-measurement facility
+--------------------------------
+
+The channel-measurement facility provides a means to collect measurement
+data which is made available by the channel subsystem for each channel
+attached device.
+
+.. kernel-doc:: arch/s390/include/uapi/asm/cmb.h
+ :internal:
+
+.. kernel-doc:: drivers/s390/cio/cmf.c
+ :export:
+
+The ccwgroup bus
+================
+
+The ccwgroup bus only contains artificial devices, created by the user.
+Many networking devices (e.g. qeth) are in fact composed of several ccw
+devices (like read, write and data channel for qeth). The ccwgroup bus
+provides a mechanism to create a meta-device which contains those ccw
+devices as slave devices and can be associated with the netdevice.
+
+ccw group devices
+-----------------
+
+.. kernel-doc:: arch/s390/include/asm/ccwgroup.h
+ :internal:
+
+.. kernel-doc:: drivers/s390/cio/ccwgroup.c
+ :export:
+
+Generic interfaces
+==================
+
+Some interfaces are available to other drivers that do not necessarily
+have anything to do with the busses described above, but still are
+indirectly using basic infrastructure in the common I/O layer. One
+example is the support for adapter interrupts.
+
+.. kernel-doc:: drivers/s390/cio/airq.c
+ :export:
diff --git a/Documentation/driver-api/scsi.rst b/Documentation/driver-api/scsi.rst
new file mode 100644
index 000000000000..5a2aa7a377d9
--- /dev/null
+++ b/Documentation/driver-api/scsi.rst
@@ -0,0 +1,336 @@
+=====================
+SCSI Interfaces Guide
+=====================
+
+:Author: James Bottomley
+:Author: Rob Landley
+
+Introduction
+============
+
+Protocol vs bus
+---------------
+
+Once upon a time, the Small Computer Systems Interface defined both a
+parallel I/O bus and a data protocol to connect a wide variety of
+peripherals (disk drives, tape drives, modems, printers, scanners,
+optical drives, test equipment, and medical devices) to a host computer.
+
+Although the old parallel (fast/wide/ultra) SCSI bus has largely fallen
+out of use, the SCSI command set is more widely used than ever to
+communicate with devices over a number of different busses.
+
+The `SCSI protocol <http://www.t10.org/scsi-3.htm>`__ is a big-endian
+peer-to-peer packet based protocol. SCSI commands are 6, 10, 12, or 16
+bytes long, often followed by an associated data payload.
+
+SCSI commands can be transported over just about any kind of bus, and
+are the default protocol for storage devices attached to USB, SATA, SAS,
+Fibre Channel, FireWire, and ATAPI devices. SCSI packets are also
+commonly exchanged over Infiniband,
+`I20 <http://i2o.shadowconnect.com/faq.php>`__, TCP/IP
+(`iSCSI <https://en.wikipedia.org/wiki/ISCSI>`__), even `Parallel
+ports <http://cyberelk.net/tim/parport/parscsi.html>`__.
+
+Design of the Linux SCSI subsystem
+----------------------------------
+
+The SCSI subsystem uses a three layer design, with upper, mid, and low
+layers. Every operation involving the SCSI subsystem (such as reading a
+sector from a disk) uses one driver at each of the 3 levels: one upper
+layer driver, one lower layer driver, and the SCSI midlayer.
+
+The SCSI upper layer provides the interface between userspace and the
+kernel, in the form of block and char device nodes for I/O and ioctl().
+The SCSI lower layer contains drivers for specific hardware devices.
+
+In between is the SCSI mid-layer, analogous to a network routing layer
+such as the IPv4 stack. The SCSI mid-layer routes a packet based data
+protocol between the upper layer's /dev nodes and the corresponding
+devices in the lower layer. It manages command queues, provides error
+handling and power management functions, and responds to ioctl()
+requests.
+
+SCSI upper layer
+================
+
+The upper layer supports the user-kernel interface by providing device
+nodes.
+
+sd (SCSI Disk)
+--------------
+
+sd (sd_mod.o)
+
+sr (SCSI CD-ROM)
+----------------
+
+sr (sr_mod.o)
+
+st (SCSI Tape)
+--------------
+
+st (st.o)
+
+sg (SCSI Generic)
+-----------------
+
+sg (sg.o)
+
+ch (SCSI Media Changer)
+-----------------------
+
+ch (ch.c)
+
+SCSI mid layer
+==============
+
+SCSI midlayer implementation
+----------------------------
+
+include/scsi/scsi_device.h
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. kernel-doc:: include/scsi/scsi_device.h
+ :internal:
+
+drivers/scsi/scsi.c
+~~~~~~~~~~~~~~~~~~~
+
+Main file for the SCSI midlayer.
+
+.. kernel-doc:: drivers/scsi/scsi.c
+ :export:
+
+drivers/scsi/scsicam.c
+~~~~~~~~~~~~~~~~~~~~~~
+
+`SCSI Common Access
+Method <http://www.t10.org/ftp/t10/drafts/cam/cam-r12b.pdf>`__ support
+functions, for use with HDIO_GETGEO, etc.
+
+.. kernel-doc:: drivers/scsi/scsicam.c
+ :export:
+
+drivers/scsi/scsi_error.c
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Common SCSI error/timeout handling routines.
+
+.. kernel-doc:: drivers/scsi/scsi_error.c
+ :export:
+
+drivers/scsi/scsi_devinfo.c
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Manage scsi_dev_info_list, which tracks blacklisted and whitelisted
+devices.
+
+.. kernel-doc:: drivers/scsi/scsi_devinfo.c
+ :internal:
+
+drivers/scsi/scsi_ioctl.c
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Handle ioctl() calls for SCSI devices.
+
+.. kernel-doc:: drivers/scsi/scsi_ioctl.c
+ :export:
+
+drivers/scsi/scsi_lib.c
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+SCSI queuing library.
+
+.. kernel-doc:: drivers/scsi/scsi_lib.c
+ :export:
+
+drivers/scsi/scsi_lib_dma.c
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+SCSI library functions depending on DMA (map and unmap scatter-gather
+lists).
+
+.. kernel-doc:: drivers/scsi/scsi_lib_dma.c
+ :export:
+
+drivers/scsi/scsi_module.c
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The file drivers/scsi/scsi_module.c contains legacy support for
+old-style host templates. It should never be used by any new driver.
+
+drivers/scsi/scsi_proc.c
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The functions in this file provide an interface between the PROC file
+system and the SCSI device drivers It is mainly used for debugging,
+statistics and to pass information directly to the lowlevel driver. I.E.
+plumbing to manage /proc/scsi/\*
+
+.. kernel-doc:: drivers/scsi/scsi_proc.c
+ :internal:
+
+drivers/scsi/scsi_netlink.c
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Infrastructure to provide async events from transports to userspace via
+netlink, using a single NETLINK_SCSITRANSPORT protocol for all
+transports. See `the original patch
+submission <http://marc.info/?l=linux-scsi&m=115507374832500&w=2>`__ for
+more details.
+
+.. kernel-doc:: drivers/scsi/scsi_netlink.c
+ :internal:
+
+drivers/scsi/scsi_scan.c
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Scan a host to determine which (if any) devices are attached. The
+general scanning/probing algorithm is as follows, exceptions are made to
+it depending on device specific flags, compilation options, and global
+variable (boot or module load time) settings. A specific LUN is scanned
+via an INQUIRY command; if the LUN has a device attached, a scsi_device
+is allocated and setup for it. For every id of every channel on the
+given host, start by scanning LUN 0. Skip hosts that don't respond at
+all to a scan of LUN 0. Otherwise, if LUN 0 has a device attached,
+allocate and setup a scsi_device for it. If target is SCSI-3 or up,
+issue a REPORT LUN, and scan all of the LUNs returned by the REPORT LUN;
+else, sequentially scan LUNs up until some maximum is reached, or a LUN
+is seen that cannot have a device attached to it.
+
+.. kernel-doc:: drivers/scsi/scsi_scan.c
+ :internal:
+
+drivers/scsi/scsi_sysctl.c
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Set up the sysctl entry: "/dev/scsi/logging_level"
+(DEV_SCSI_LOGGING_LEVEL) which sets/returns scsi_logging_level.
+
+drivers/scsi/scsi_sysfs.c
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+SCSI sysfs interface routines.
+
+.. kernel-doc:: drivers/scsi/scsi_sysfs.c
+ :export:
+
+drivers/scsi/hosts.c
+~~~~~~~~~~~~~~~~~~~~
+
+mid to lowlevel SCSI driver interface
+
+.. kernel-doc:: drivers/scsi/hosts.c
+ :export:
+
+Transport classes
+-----------------
+
+Transport classes are service libraries for drivers in the SCSI lower
+layer, which expose transport attributes in sysfs.
+
+Fibre Channel transport
+~~~~~~~~~~~~~~~~~~~~~~~
+
+The file drivers/scsi/scsi_transport_fc.c defines transport attributes
+for Fibre Channel.
+
+.. kernel-doc:: drivers/scsi/scsi_transport_fc.c
+ :export:
+
+iSCSI transport class
+~~~~~~~~~~~~~~~~~~~~~
+
+The file drivers/scsi/scsi_transport_iscsi.c defines transport
+attributes for the iSCSI class, which sends SCSI packets over TCP/IP
+connections.
+
+.. kernel-doc:: drivers/scsi/scsi_transport_iscsi.c
+ :export:
+
+Serial Attached SCSI (SAS) transport class
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The file drivers/scsi/scsi_transport_sas.c defines transport
+attributes for Serial Attached SCSI, a variant of SATA aimed at large
+high-end systems.
+
+The SAS transport class contains common code to deal with SAS HBAs, an
+aproximated representation of SAS topologies in the driver model, and
+various sysfs attributes to expose these topologies and management
+interfaces to userspace.
+
+In addition to the basic SCSI core objects this transport class
+introduces two additional intermediate objects: The SAS PHY as
+represented by struct sas_phy defines an "outgoing" PHY on a SAS HBA or
+Expander, and the SAS remote PHY represented by struct sas_rphy defines
+an "incoming" PHY on a SAS Expander or end device. Note that this is
+purely a software concept, the underlying hardware for a PHY and a
+remote PHY is the exactly the same.
+
+There is no concept of a SAS port in this code, users can see what PHYs
+form a wide port based on the port_identifier attribute, which is the
+same for all PHYs in a port.
+
+.. kernel-doc:: drivers/scsi/scsi_transport_sas.c
+ :export:
+
+SATA transport class
+~~~~~~~~~~~~~~~~~~~~
+
+The SATA transport is handled by libata, which has its own book of
+documentation in this directory.
+
+Parallel SCSI (SPI) transport class
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The file drivers/scsi/scsi_transport_spi.c defines transport
+attributes for traditional (fast/wide/ultra) SCSI busses.
+
+.. kernel-doc:: drivers/scsi/scsi_transport_spi.c
+ :export:
+
+SCSI RDMA (SRP) transport class
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The file drivers/scsi/scsi_transport_srp.c defines transport
+attributes for SCSI over Remote Direct Memory Access.
+
+.. kernel-doc:: drivers/scsi/scsi_transport_srp.c
+ :export:
+
+SCSI lower layer
+================
+
+Host Bus Adapter transport types
+--------------------------------
+
+Many modern device controllers use the SCSI command set as a protocol to
+communicate with their devices through many different types of physical
+connections.
+
+In SCSI language a bus capable of carrying SCSI commands is called a
+"transport", and a controller connecting to such a bus is called a "host
+bus adapter" (HBA).
+
+Debug transport
+~~~~~~~~~~~~~~~
+
+The file drivers/scsi/scsi_debug.c simulates a host adapter with a
+variable number of disks (or disk like devices) attached, sharing a
+common amount of RAM. Does a lot of checking to make sure that we are
+not getting blocks mixed up, and panics the kernel if anything out of
+the ordinary is seen.
+
+To be more realistic, the simulated devices have the transport
+attributes of SAS disks.
+
+For documentation see http://sg.danny.cz/sg/sdebug26.html
+
+todo
+~~~~
+
+Parallel (fast/wide/ultra) SCSI, USB, SATA, SAS, Fibre Channel,
+FireWire, ATAPI devices, Infiniband, I20, iSCSI, Parallel ports,
+netlink...
diff --git a/Documentation/driver-api/usb/dwc3.rst b/Documentation/driver-api/usb/dwc3.rst
new file mode 100644
index 000000000000..c3dc84a50ce5
--- /dev/null
+++ b/Documentation/driver-api/usb/dwc3.rst
@@ -0,0 +1,712 @@
+===============================================================
+Synopsys DesignWare Core SuperSpeed USB 3.0 Controller
+===============================================================
+
+:Author: Felipe Balbi <felipe.balbi@linux.intel.com>
+:Date: April 2017
+
+Introduction
+============
+
+The *Synopsys DesignWare Core SuperSpeed USB 3.0 Controller*
+(hereinafter referred to as *DWC3*) is a USB SuperSpeed compliant
+controller which can be configured in one of 4 ways:
+
+ 1. Peripheral-only configuration
+ 2. Host-only configuration
+ 3. Dual-Role configuration
+ 4. Hub configuration
+
+Linux currently supports several versions of this controller. In all
+likelyhood, the version in your SoC is already supported. At the time
+of this writing, known tested versions range from 2.02a to 3.10a. As a
+rule of thumb, anything above 2.02a should work reliably well.
+
+Currently, we have many known users for this driver. In alphabetical
+order:
+
+ 1. Cavium
+ 2. Intel Corporation
+ 3. Qualcomm
+ 4. Rockchip
+ 5. ST
+ 6. Samsung
+ 7. Texas Instruments
+ 8. Xilinx
+
+Summary of Features
+======================
+
+For details about features supported by your version of DWC3, consult
+your IP team and/or *Synopsys DesignWare Core SuperSpeed USB 3.0
+Controller Databook*. Following is a list of features supported by the
+driver at the time of this writing:
+
+ 1. Up to 16 bidirectional endpoints (including the control
+ pipe - ep0)
+ 2. Flexible endpoint configuration
+ 3. Simultaneous IN and OUT transfer support
+ 4. Scatter-list support
+ 5. Up to 256 TRBs [#trb]_ per endpoint
+ 6. Support for all transfer types (*Control*, *Bulk*,
+ *Interrupt*, and *Isochronous*)
+ 7. SuperSpeed Bulk Streams
+ 8. Link Power Management
+ 9. Trace Events for debugging
+ 10. DebugFS [#debugfs]_ interface
+
+These features have all been exercised with many of the **in-tree**
+gadget drivers. We have verified both *ConfigFS* [#configfs]_ and
+legacy gadget drivers.
+
+Driver Design
+==============
+
+The DWC3 driver sits on the *drivers/usb/dwc3/* directory. All files
+related to this driver are in this one directory. This makes it easy
+for new-comers to read the code and understand how it behaves.
+
+Because of DWC3's configuration flexibility, the driver is a little
+complex in some places but it should be rather straightforward to
+understand.
+
+The biggest part of the driver refers to the Gadget API.
+
+Known Limitations
+===================
+
+Like any other HW, DWC3 has its own set of limitations. To avoid
+constant questions about such problems, we decided to document them
+here and have a single location to where we could point users.
+
+OUT Transfer Size Requirements
+---------------------------------
+
+According to Synopsys Databook, all OUT transfer TRBs [#trb]_ must
+have their *size* field set to a value which is integer divisible by
+the endpoint's *wMaxPacketSize*. This means that *e.g.* in order to
+receive a Mass Storage *CBW* [#cbw]_, req->length must either be set
+to a value that's divisible by *wMaxPacketSize* (1024 on SuperSpeed,
+512 on HighSpeed, etc), or DWC3 driver must add a Chained TRB pointing
+to a throw-away buffer for the remaining length. Without this, OUT
+transfers will **NOT** start.
+
+Note that as of this writing, this won't be a problem because DWC3 is
+fully capable of appending a chained TRB for the remaining length and
+completely hide this detail from the gadget driver. It's still worth
+mentioning because this seems to be the largest source of queries
+about DWC3 and *non-working transfers*.
+
+TRB Ring Size Limitation
+-------------------------
+
+We, currently, have a hard limit of 256 TRBs [#trb]_ per endpoint,
+with the last TRB being a Link TRB [#link_trb]_ pointing back to the
+first. This limit is arbitrary but it has the benefit of adding up to
+exactly 4096 bytes, or 1 Page.
+
+DWC3 driver will try its best to cope with more than 255 requests and,
+for the most part, it should work normally. However this is not
+something that has been exercised very frequently. If you experience
+any problems, see section **Reporting Bugs** below.
+
+Reporting Bugs
+================
+
+Whenever you encounter a problem with DWC3, first and foremost you
+should make sure that:
+
+ 1. You're running latest tag from `Linus' tree`_
+ 2. You can reproduce the error without any out-of-tree changes
+ to DWC3
+ 3. You have checked that it's not a fault on the host machine
+
+After all these are verified, then here's how to capture enough
+information so we can be of any help to you.
+
+Required Information
+---------------------
+
+DWC3 relies exclusively on Trace Events for debugging. Everything is
+exposed there, with some extra bits being exposed to DebugFS
+[#debugfs]_.
+
+In order to capture DWC3's Trace Events you should run the following
+commands **before** plugging the USB cable to a host machine:
+
+.. code-block:: sh
+
+ # mkdir -p /d
+ # mkdir -p /t
+ # mount -t debugfs none /d
+ # mount -t tracefs none /t
+ # echo 81920 > /t/buffer_size_kb
+ # echo 1 > /t/events/dwc3/enable
+
+After this is done, you can connect your USB cable and reproduce the
+problem. As soon as the fault is reproduced, make a copy of files
+``trace`` and ``regdump``, like so:
+
+.. code-block:: sh
+
+ # cp /t/trace /root/trace.txt
+ # cat /d/*dwc3*/regdump > /root/regdump.txt
+
+Make sure to compress ``trace.txt`` and ``regdump.txt`` in a tarball
+and email it to `me`_ with `linux-usb`_ in Cc. If you want to be extra
+sure that I'll help you, write your subject line in the following
+format:
+
+ **[BUG REPORT] usb: dwc3: Bug while doing XYZ**
+
+On the email body, make sure to detail what you doing, which gadget
+driver you were using, how to reproduce the problem, what SoC you're
+using, which OS (and its version) was running on the Host machine.
+
+With all this information, we should be able to understand what's
+going on and be helpful to you.
+
+Debugging
+===========
+
+First and foremost a disclaimer::
+
+ DISCLAIMER: The information available on DebugFS and/or TraceFS can
+ change at any time at any Major Linux Kernel Release. If writing
+ scripts, do **NOT** assume information to be available in the
+ current format.
+
+With that out of the way, let's carry on.
+
+If you're willing to debug your own problem, you deserve a round of
+applause :-)
+
+Anyway, there isn't much to say here other than Trace Events will be
+really helpful in figuring out issues with DWC3. Also, access to
+Synopsys Databook will be **really** valuable in this case.
+
+A USB Sniffer can be helpful at times but it's not entirely required,
+there's a lot that can be understood without looking at the wire.
+
+Feel free to email `me`_ and Cc `linux-usb`_ if you need any help.
+
+``DebugFS``
+-------------
+
+``DebugFS`` is very good for gathering snapshots of what's going on
+with DWC3 and/or any endpoint.
+
+On DWC3's ``DebugFS`` directory, you will find the following files and
+directories:
+
+``ep[0..15]{in,out}/``
+``link_state``
+``regdump``
+``testmode``
+
+``link_state``
+``````````````
+
+When read, ``link_state`` will print out one of ``U0``, ``U1``,
+``U2``, ``U3``, ``SS.Disabled``, ``RX.Detect``, ``SS.Inactive``,
+``Polling``, ``Recovery``, ``Hot Reset``, ``Compliance``,
+``Loopback``, ``Reset``, ``Resume`` or ``UNKNOWN link state``.
+
+This file can also be written to in order to force link to one of the
+states above.
+
+``regdump``
+`````````````
+
+File name is self-explanatory. When read, ``regdump`` will print out a
+register dump of DWC3. Note that this file can be grepped to find the
+information you want.
+
+``testmode``
+``````````````
+
+When read, ``testmode`` will print out a name of one of the specified
+USB 2.0 Testmodes (``test_j``, ``test_k``, ``test_se0_nak``,
+``test_packet``, ``test_force_enable``) or the string ``no test`` in
+case no tests are currently being executed.
+
+In order to start any of these test modes, the same strings can be
+written to the file and DWC3 will enter the requested test mode.
+
+
+``ep[0..15]{in,out}``
+``````````````````````
+
+For each endpoint we expose one directory following the naming
+convention ``ep$num$dir`` *(ep0in, ep0out, ep1in, ...)*. Inside each
+of these directories you will find the following files:
+
+``descriptor_fetch_queue``
+``event_queue``
+``rx_fifo_queue``
+``rx_info_queue``
+``rx_request_queue``
+``transfer_type``
+``trb_ring``
+``tx_fifo_queue``
+``tx_request_queue``
+
+With access to Synopsys Databook, you can decode the information on
+them.
+
+``transfer_type``
+~~~~~~~~~~~~~~~~~~
+
+When read, ``transfer_type`` will print out one of ``control``,
+``bulk``, ``interrupt`` or ``isochronous`` depending on what the
+endpoint descriptor says. If the endpoint hasn't been enabled yet, it
+will print ``--``.
+
+``trb_ring``
+~~~~~~~~~~~~~
+
+When read, ``trb_ring`` will print out details about all TRBs on the
+ring. It will also tell you where our enqueue and dequeue pointers are
+located in the ring:
+
+.. code-block:: sh
+
+ buffer_addr,size,type,ioc,isp_imi,csp,chn,lst,hwo
+ 000000002c754000,481,normal,1,0,1,0,0,0
+ 000000002c75c000,481,normal,1,0,1,0,0,0
+ 000000002c780000,481,normal,1,0,1,0,0,0
+ 000000002c788000,481,normal,1,0,1,0,0,0
+ 000000002c78c000,481,normal,1,0,1,0,0,0
+ 000000002c754000,481,normal,1,0,1,0,0,0
+ 000000002c75c000,481,normal,1,0,1,0,0,0
+ 000000002c784000,481,normal,1,0,1,0,0,0
+ 000000002c788000,481,normal,1,0,1,0,0,0
+ 000000002c78c000,481,normal,1,0,1,0,0,0
+ 000000002c790000,481,normal,1,0,1,0,0,0
+ 000000002c758000,481,normal,1,0,1,0,0,0
+ 000000002c780000,481,normal,1,0,1,0,0,0
+ 000000002c788000,481,normal,1,0,1,0,0,0
+ 000000002c790000,481,normal,1,0,1,0,0,0
+ 000000002c758000,481,normal,1,0,1,0,0,0
+ 000000002c780000,481,normal,1,0,1,0,0,0
+ 000000002c784000,481,normal,1,0,1,0,0,0
+ 000000002c788000,481,normal,1,0,1,0,0,0
+ 000000002c78c000,481,normal,1,0,1,0,0,0
+ 000000002c754000,481,normal,1,0,1,0,0,0
+ 000000002c758000,481,normal,1,0,1,0,0,0
+ 000000002c780000,481,normal,1,0,1,0,0,0
+ 000000002c784000,481,normal,1,0,1,0,0,0
+ 000000002c78c000,481,normal,1,0,1,0,0,0
+ 000000002c790000,481,normal,1,0,1,0,0,0
+ 000000002c758000,481,normal,1,0,1,0,0,0
+ 000000002c780000,481,normal,1,0,1,0,0,0
+ 000000002c788000,481,normal,1,0,1,0,0,0
+ 000000002c790000,481,normal,1,0,1,0,0,0
+ 000000002c758000,481,normal,1,0,1,0,0,0
+ 000000002c780000,481,normal,1,0,1,0,0,0
+ 000000002c788000,481,normal,1,0,1,0,0,0
+ 000000002c790000,481,normal,1,0,1,0,0,0
+ 000000002c758000,481,normal,1,0,1,0,0,0
+ 000000002c780000,481,normal,1,0,1,0,0,0
+ 000000002c788000,481,normal,1,0,1,0,0,0
+ 000000002c790000,481,normal,1,0,1,0,0,0
+ 000000002c758000,481,normal,1,0,1,0,0,0
+ 000000002c780000,481,normal,1,0,1,0,0,0
+ 000000002c788000,481,normal,1,0,1,0,0,0
+ 000000002c790000,481,normal,1,0,1,0,0,0
+ 000000002c758000,481,normal,1,0,1,0,0,0
+ 000000002c780000,481,normal,1,0,1,0,0,0
+ 000000002c788000,481,normal,1,0,1,0,0,0
+ 000000002c790000,481,normal,1,0,1,0,0,0
+ 000000002c758000,481,normal,1,0,1,0,0,0
+ 000000002c780000,481,normal,1,0,1,0,0,0
+ 000000002c788000,481,normal,1,0,1,0,0,0
+ 000000002c790000,481,normal,1,0,1,0,0,0
+ 000000002c758000,481,normal,1,0,1,0,0,0
+ 000000002c780000,481,normal,1,0,1,0,0,0
+ 000000002c788000,481,normal,1,0,1,0,0,0
+ 000000002c790000,481,normal,1,0,1,0,0,0
+ 000000002c758000,481,normal,1,0,1,0,0,0
+ 000000002c780000,481,normal,1,0,1,0,0,0
+ 000000002c78c000,481,normal,1,0,1,0,0,0
+ 000000002c784000,481,normal,1,0,1,0,0,0
+ 000000002c788000,481,normal,1,0,1,0,0,0
+ 000000002c78c000,481,normal,1,0,1,0,0,0
+ 000000002c754000,481,normal,1,0,1,0,0,0
+ 000000002c758000,481,normal,1,0,1,0,0,0
+ 000000002c780000,481,normal,1,0,1,0,0,0
+ 000000002c788000,481,normal,1,0,1,0,0,0
+ 000000002c790000,481,normal,1,0,1,0,0,0
+ 000000002c758000,481,normal,1,0,1,0,0,0
+ 000000002c780000,481,normal,1,0,1,0,0,0
+ 000000002c758000,481,normal,1,0,1,0,0,0
+ 000000002c780000,481,normal,1,0,1,0,0,0
+ 000000002c78c000,481,normal,1,0,1,0,0,0
+ 000000002c75c000,481,normal,1,0,1,0,0,0
+ 000000002c78c000,481,normal,1,0,1,0,0,0
+ 000000002c780000,481,normal,1,0,1,0,0,0
+ 000000002c754000,481,normal,1,0,1,0,0,0
+ 000000002c788000,481,normal,1,0,1,0,0,0
+ 000000002c754000,481,normal,1,0,1,0,0,0
+ 000000002c780000,481,normal,1,0,1,0,0,0
+ 000000002c788000,481,normal,1,0,1,0,0,0
+ 000000002c78c000,481,normal,1,0,1,0,0,0
+ 000000002c790000,481,normal,1,0,1,0,0,0
+ 000000002c754000,481,normal,1,0,1,0,0,0
+ 000000002c758000,481,normal,1,0,1,0,0,0
+ 000000002c75c000,481,normal,1,0,1,0,0,0
+ 000000002c780000,481,normal,1,0,1,0,0,0
+ 000000002c784000,481,normal,1,0,1,0,0,0
+ 000000002c788000,481,normal,1,0,1,0,0,0
+ 000000002c78c000,481,normal,1,0,1,0,0,0
+ 000000002c790000,481,normal,1,0,1,0,0,0
+ 000000002c754000,481,normal,1,0,1,0,0,0
+ 000000002c758000,481,normal,1,0,1,0,0,0
+ 000000002c75c000,512,normal,1,0,1,0,0,1 D
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0 E
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 0000000000000000,0,UNKNOWN,0,0,0,0,0,0
+ 00000000381ab000,0,link,0,0,0,0,0,1
+
+
+Trace Events
+-------------
+
+DWC3 also provides several trace events which help us gathering
+information about the behavior of the driver during runtime.
+
+In order to use these events, you must enable ``CONFIG_FTRACE`` in
+your kernel config.
+
+For details about how enable DWC3 events, see section **Reporting
+Bugs**.
+
+The following subsections will give details about each Event Class and
+each Event defined by DWC3.
+
+MMIO
+```````
+
+It is sometimes useful to look at every MMIO access when looking for
+bugs. Because of that, DWC3 offers two Trace Events (one for
+dwc3_readl() and one for dwc3_writel()). ``TP_printk`` follows::
+
+ TP_printk("addr %p value %08x", __entry->base + __entry->offset,
+ __entry->value)
+
+Interrupt Events
+````````````````
+
+Every IRQ event can be logged and decoded into a human readable
+string. Because every event will be different, we don't give an
+example other than the ``TP_printk`` format used::
+
+ TP_printk("event (%08x): %s", __entry->event,
+ dwc3_decode_event(__entry->event, __entry->ep0state))
+
+Control Request
+`````````````````
+
+Every USB Control Request can be logged to the trace buffer. The
+output format is::
+
+ TP_printk("%s", dwc3_decode_ctrl(__entry->bRequestType,
+ __entry->bRequest, __entry->wValue,
+ __entry->wIndex, __entry->wLength)
+ )
+
+Note that Standard Control Requests will be decoded into
+human-readable strings with their respective arguments. Class and
+Vendor requests will be printed out a sequence of 8 bytes in hex
+format.
+
+Lifetime of a ``struct usb_request``
+```````````````````````````````````````
+
+The entire lifetime of a ``struct usb_request`` can be tracked on the
+trace buffer. We have one event for each of allocation, free,
+queueing, dequeueing, and giveback. Output format is::
+
+ TP_printk("%s: req %p length %u/%u %s%s%s ==> %d",
+ __get_str(name), __entry->req, __entry->actual, __entry->length,
+ __entry->zero ? "Z" : "z",
+ __entry->short_not_ok ? "S" : "s",
+ __entry->no_interrupt ? "i" : "I",
+ __entry->status
+ )
+
+Generic Commands
+````````````````````
+
+We can log and decode every Generic Command with its completion
+code. Format is::
+
+ TP_printk("cmd '%s' [%x] param %08x --> status: %s",
+ dwc3_gadget_generic_cmd_string(__entry->cmd),
+ __entry->cmd, __entry->param,
+ dwc3_gadget_generic_cmd_status_string(__entry->status)
+ )
+
+Endpoint Commands
+````````````````````
+
+Endpoints commands can also be logged together with completion
+code. Format is::
+
+ TP_printk("%s: cmd '%s' [%d] params %08x %08x %08x --> status: %s",
+ __get_str(name), dwc3_gadget_ep_cmd_string(__entry->cmd),
+ __entry->cmd, __entry->param0,
+ __entry->param1, __entry->param2,
+ dwc3_ep_cmd_status_string(__entry->cmd_status)
+ )
+
+Lifetime of a ``TRB``
+``````````````````````
+
+A ``TRB`` Lifetime is simple. We are either preparing a ``TRB`` or
+completing it. With these two events, we can see how a ``TRB`` changes
+over time. Format is::
+
+ TP_printk("%s: %d/%d trb %p buf %08x%08x size %s%d ctrl %08x (%c%c%c%c:%c%c:%s)",
+ __get_str(name), __entry->queued, __entry->allocated,
+ __entry->trb, __entry->bph, __entry->bpl,
+ ({char *s;
+ int pcm = ((__entry->size >> 24) & 3) + 1;
+ switch (__entry->type) {
+ case USB_ENDPOINT_XFER_INT:
+ case USB_ENDPOINT_XFER_ISOC:
+ switch (pcm) {
+ case 1:
+ s = "1x ";
+ break;
+ case 2:
+ s = "2x ";
+ break;
+ case 3:
+ s = "3x ";
+ break;
+ }
+ default:
+ s = "";
+ } s; }),
+ DWC3_TRB_SIZE_LENGTH(__entry->size), __entry->ctrl,
+ __entry->ctrl & DWC3_TRB_CTRL_HWO ? 'H' : 'h',
+ __entry->ctrl & DWC3_TRB_CTRL_LST ? 'L' : 'l',
+ __entry->ctrl & DWC3_TRB_CTRL_CHN ? 'C' : 'c',
+ __entry->ctrl & DWC3_TRB_CTRL_CSP ? 'S' : 's',
+ __entry->ctrl & DWC3_TRB_CTRL_ISP_IMI ? 'S' : 's',
+ __entry->ctrl & DWC3_TRB_CTRL_IOC ? 'C' : 'c',
+ dwc3_trb_type_string(DWC3_TRBCTL_TYPE(__entry->ctrl))
+ )
+
+Lifetime of an Endpoint
+```````````````````````
+
+And endpoint's lifetime is summarized with enable and disable
+operations, both of which can be traced. Format is::
+
+ TP_printk("%s: mps %d/%d streams %d burst %d ring %d/%d flags %c:%c%c%c%c%c:%c:%c",
+ __get_str(name), __entry->maxpacket,
+ __entry->maxpacket_limit, __entry->max_streams,
+ __entry->maxburst, __entry->trb_enqueue,
+ __entry->trb_dequeue,
+ __entry->flags & DWC3_EP_ENABLED ? 'E' : 'e',
+ __entry->flags & DWC3_EP_STALL ? 'S' : 's',
+ __entry->flags & DWC3_EP_WEDGE ? 'W' : 'w',
+ __entry->flags & DWC3_EP_BUSY ? 'B' : 'b',
+ __entry->flags & DWC3_EP_PENDING_REQUEST ? 'P' : 'p',
+ __entry->flags & DWC3_EP_MISSED_ISOC ? 'M' : 'm',
+ __entry->flags & DWC3_EP_END_TRANSFER_PENDING ? 'E' : 'e',
+ __entry->direction ? '<' : '>'
+ )
+
+
+Structures, Methods and Definitions
+====================================
+
+.. kernel-doc:: drivers/usb/dwc3/core.h
+ :doc: main data structures
+ :internal:
+
+.. kernel-doc:: drivers/usb/dwc3/gadget.h
+ :doc: gadget-only helpers
+ :internal:
+
+.. kernel-doc:: drivers/usb/dwc3/gadget.c
+ :doc: gadget-side implementation
+ :internal:
+
+.. kernel-doc:: drivers/usb/dwc3/core.c
+ :doc: core driver (probe, PM, etc)
+ :internal:
+
+.. [#trb] Transfer Request Block
+.. [#link_trb] Transfer Request Block pointing to another Transfer
+ Request Block.
+.. [#debugfs] The Debug File System
+.. [#configfs] The Config File System
+.. [#cbw] Command Block Wrapper
+.. _Linus' tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
+.. _me: felipe.balbi@linux.intel.com
+.. _linux-usb: linux-usb@vger.kernel.org
diff --git a/Documentation/driver-api/usb/index.rst b/Documentation/driver-api/usb/index.rst
index 1bf64edc8c8a..8fe995a1ec94 100644
--- a/Documentation/driver-api/usb/index.rst
+++ b/Documentation/driver-api/usb/index.rst
@@ -16,7 +16,10 @@ Linux USB API
persist
error-codes
writing_usb_driver
+ dwc3
writing_musb_glue_layer
+ typec
+ usb3-debug-port
.. only:: subproject and html
diff --git a/Documentation/usb/typec.rst b/Documentation/driver-api/usb/typec.rst
index 8a7249f2ff04..8a7249f2ff04 100644
--- a/Documentation/usb/typec.rst
+++ b/Documentation/driver-api/usb/typec.rst
diff --git a/Documentation/usb/usb3-debug-port.rst b/Documentation/driver-api/usb/usb3-debug-port.rst
index feb1a36a65b7..feb1a36a65b7 100644
--- a/Documentation/usb/usb3-debug-port.rst
+++ b/Documentation/driver-api/usb/usb3-debug-port.rst
diff --git a/Documentation/driver-api/w1.rst b/Documentation/driver-api/w1.rst
new file mode 100644
index 000000000000..9963cca788a1
--- /dev/null
+++ b/Documentation/driver-api/w1.rst
@@ -0,0 +1,70 @@
+======================
+W1: Dallas' 1-wire bus
+======================
+
+:Author: David Fries
+
+W1 API internal to the kernel
+=============================
+
+W1 API internal to the kernel
+-----------------------------
+
+include/linux/w1.h
+~~~~~~~~~~~~~~~~~~
+
+W1 kernel API functions.
+
+.. kernel-doc:: include/linux/w1.h
+ :internal:
+
+drivers/w1/w1.c
+~~~~~~~~~~~~~~~
+
+W1 core functions.
+
+.. kernel-doc:: drivers/w1/w1.c
+ :internal:
+
+drivers/w1/w1_family.c
+~~~~~~~~~~~~~~~~~~~~~~~
+
+Allows registering device family operations.
+
+.. kernel-doc:: drivers/w1/w1_family.c
+ :export:
+
+drivers/w1/w1_internal.h
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+W1 internal initialization for master devices.
+
+.. kernel-doc:: drivers/w1/w1_internal.h
+ :internal:
+
+drivers/w1/w1_int.c
+~~~~~~~~~~~~~~~~~~~~
+
+W1 internal initialization for master devices.
+
+.. kernel-doc:: drivers/w1/w1_int.c
+ :export:
+
+drivers/w1/w1_netlink.h
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+W1 external netlink API structures and commands.
+
+.. kernel-doc:: drivers/w1/w1_netlink.h
+ :internal:
+
+drivers/w1/w1_io.c
+~~~~~~~~~~~~~~~~~~~
+
+W1 input/output.
+
+.. kernel-doc:: drivers/w1/w1_io.c
+ :export:
+
+.. kernel-doc:: drivers/w1/w1_io.c
+ :internal:
diff --git a/Documentation/driver-model/devres.txt b/Documentation/driver-model/devres.txt
index e72587fe477d..69f08c0f23a8 100644
--- a/Documentation/driver-model/devres.txt
+++ b/Documentation/driver-model/devres.txt
@@ -240,10 +240,9 @@ CLOCK
DMA
dmam_alloc_coherent()
- dmam_alloc_noncoherent()
+ dmam_alloc_attrs()
dmam_declare_coherent_memory()
dmam_free_coherent()
- dmam_free_noncoherent()
dmam_pool_create()
dmam_pool_destroy()
@@ -311,6 +310,9 @@ IRQ
devm_irq_alloc_desc_at()
devm_irq_alloc_desc_from()
devm_irq_alloc_descs_from()
+ devm_irq_alloc_generic_chip()
+ devm_irq_setup_generic_chip()
+ devm_irq_sim_init()
LED
devm_led_classdev_register()
@@ -335,13 +337,19 @@ MEM
devm_kzalloc()
MFD
- devm_mfd_add_devices()
+ devm_mfd_add_devices()
+
+MUX
+ devm_mux_chip_alloc()
+ devm_mux_chip_register()
+ devm_mux_control_get()
PER-CPU MEM
devm_alloc_percpu()
devm_free_percpu()
PCI
+ devm_pci_alloc_host_bridge() : managed PCI host bridge allocation
devm_pci_remap_cfgspace() : ioremap PCI configuration space
devm_pci_remap_cfg_resource() : ioremap PCI configuration space resource
pcim_enable_device() : after success, all PCI ops become managed
diff --git a/Documentation/driver-model/driver.txt b/Documentation/driver-model/driver.txt
index 4421135826a2..d661e6f7e6a0 100644
--- a/Documentation/driver-model/driver.txt
+++ b/Documentation/driver-model/driver.txt
@@ -196,12 +196,13 @@ struct driver_attribute {
};
Device drivers can export attributes via their sysfs directories.
-Drivers can declare attributes using a DRIVER_ATTR macro that works
-identically to the DEVICE_ATTR macro.
+Drivers can declare attributes using a DRIVER_ATTR_RW and DRIVER_ATTR_RO
+macro that works identically to the DEVICE_ATTR_RW and DEVICE_ATTR_RO
+macros.
Example:
-DRIVER_ATTR(debug,0644,show_debug,store_debug);
+DRIVER_ATTR_RW(debug);
This is equivalent to declaring:
diff --git a/Documentation/efi-stub.txt b/Documentation/efi-stub.txt
index e15746988261..41df801f9a50 100644
--- a/Documentation/efi-stub.txt
+++ b/Documentation/efi-stub.txt
@@ -1,5 +1,6 @@
- The EFI Boot Stub
- ---------------------------
+=================
+The EFI Boot Stub
+=================
On the x86 and ARM platforms, a kernel zImage/bzImage can masquerade
as a PE/COFF image, thereby convincing EFI firmware loaders to load
@@ -25,7 +26,8 @@ a certain sense it *IS* the boot loader.
The EFI boot stub is enabled with the CONFIG_EFI_STUB kernel option.
-**** How to install bzImage.efi
+How to install bzImage.efi
+--------------------------
The bzImage located in arch/x86/boot/bzImage must be copied to the EFI
System Partition (ESP) and renamed with the extension ".efi". Without
@@ -37,14 +39,16 @@ may not need to be renamed. Similarly for arm64, arch/arm64/boot/Image
should be copied but not necessarily renamed.
-**** Passing kernel parameters from the EFI shell
+Passing kernel parameters from the EFI shell
+--------------------------------------------
-Arguments to the kernel can be passed after bzImage.efi, e.g.
+Arguments to the kernel can be passed after bzImage.efi, e.g.::
fs0:> bzImage.efi console=ttyS0 root=/dev/sda4
-**** The "initrd=" option
+The "initrd=" option
+--------------------
Like most boot loaders, the EFI stub allows the user to specify
multiple initrd files using the "initrd=" option. This is the only EFI
@@ -54,9 +58,9 @@ kernel when it boots.
The path to the initrd file must be an absolute path from the
beginning of the ESP, relative path names do not work. Also, the path
is an EFI-style path and directory elements must be separated with
-backslashes (\). For example, given the following directory layout,
+backslashes (\). For example, given the following directory layout::
-fs0:>
+ fs0:>
Kernels\
bzImage.efi
initrd-large.img
@@ -66,7 +70,7 @@ fs0:>
initrd-medium.img
to boot with the initrd-large.img file if the current working
-directory is fs0:\Kernels, the following command must be used,
+directory is fs0:\Kernels, the following command must be used::
fs0:\Kernels> bzImage.efi initrd=\Kernels\initrd-large.img
@@ -76,7 +80,8 @@ which understands relative paths, whereas the rest of the command line
is passed to bzImage.efi.
-**** The "dtb=" option
+The "dtb=" option
+-----------------
For the ARM and arm64 architectures, we also need to be able to provide a
device tree to the kernel. This is done with the "dtb=" command line option,
diff --git a/Documentation/eisa.txt b/Documentation/eisa.txt
index a55e4910924e..2806e5544e43 100644
--- a/Documentation/eisa.txt
+++ b/Documentation/eisa.txt
@@ -1,4 +1,8 @@
-EISA bus support (Marc Zyngier <maz@wild-wind.fr.eu.org>)
+================
+EISA bus support
+================
+
+:Author: Marc Zyngier <maz@wild-wind.fr.eu.org>
This document groups random notes about porting EISA drivers to the
new EISA/sysfs API.
@@ -14,168 +18,189 @@ detection code is generally also used to probe ISA cards). Moreover,
most EISA drivers are among the oldest Linux drivers so, as you can
imagine, some dust has settled here over the years.
-The EISA infrastructure is made up of three parts :
+The EISA infrastructure is made up of three parts:
- The bus code implements most of the generic code. It is shared
- among all the architectures that the EISA code runs on. It
- implements bus probing (detecting EISA cards available on the bus),
- allocates I/O resources, allows fancy naming through sysfs, and
- offers interfaces for driver to register.
+ among all the architectures that the EISA code runs on. It
+ implements bus probing (detecting EISA cards available on the bus),
+ allocates I/O resources, allows fancy naming through sysfs, and
+ offers interfaces for driver to register.
- The bus root driver implements the glue between the bus hardware
- and the generic bus code. It is responsible for discovering the
- device implementing the bus, and setting it up to be latter probed
- by the bus code. This can go from something as simple as reserving
- an I/O region on x86, to the rather more complex, like the hppa
- EISA code. This is the part to implement in order to have EISA
- running on an "new" platform.
+ and the generic bus code. It is responsible for discovering the
+ device implementing the bus, and setting it up to be latter probed
+ by the bus code. This can go from something as simple as reserving
+ an I/O region on x86, to the rather more complex, like the hppa
+ EISA code. This is the part to implement in order to have EISA
+ running on an "new" platform.
- The driver offers the bus a list of devices that it manages, and
- implements the necessary callbacks to probe and release devices
- whenever told to.
+ implements the necessary callbacks to probe and release devices
+ whenever told to.
Every function/structure below lives in <linux/eisa.h>, which depends
heavily on <linux/device.h>.
-** Bus root driver :
+Bus root driver
+===============
+
+::
-int eisa_root_register (struct eisa_root_device *root);
+ int eisa_root_register (struct eisa_root_device *root);
The eisa_root_register function is used to declare a device as the
root of an EISA bus. The eisa_root_device structure holds a reference
-to this device, as well as some parameters for probing purposes.
-
-struct eisa_root_device {
- struct device *dev; /* Pointer to bridge device */
- struct resource *res;
- unsigned long bus_base_addr;
- int slots; /* Max slot number */
- int force_probe; /* Probe even when no slot 0 */
- u64 dma_mask; /* from bridge device */
- int bus_nr; /* Set by eisa_root_register */
- struct resource eisa_root_res; /* ditto */
-};
-
-node : used for eisa_root_register internal purpose
-dev : pointer to the root device
-res : root device I/O resource
-bus_base_addr : slot 0 address on this bus
-slots : max slot number to probe
-force_probe : Probe even when slot 0 is empty (no EISA mainboard)
-dma_mask : Default DMA mask. Usually the bridge device dma_mask.
-bus_nr : unique bus id, set by eisa_root_register
-
-** Driver :
-
-int eisa_driver_register (struct eisa_driver *edrv);
-void eisa_driver_unregister (struct eisa_driver *edrv);
+to this device, as well as some parameters for probing purposes::
+
+ struct eisa_root_device {
+ struct device *dev; /* Pointer to bridge device */
+ struct resource *res;
+ unsigned long bus_base_addr;
+ int slots; /* Max slot number */
+ int force_probe; /* Probe even when no slot 0 */
+ u64 dma_mask; /* from bridge device */
+ int bus_nr; /* Set by eisa_root_register */
+ struct resource eisa_root_res; /* ditto */
+ };
+
+============= ======================================================
+node used for eisa_root_register internal purpose
+dev pointer to the root device
+res root device I/O resource
+bus_base_addr slot 0 address on this bus
+slots max slot number to probe
+force_probe Probe even when slot 0 is empty (no EISA mainboard)
+dma_mask Default DMA mask. Usually the bridge device dma_mask.
+bus_nr unique bus id, set by eisa_root_register
+============= ======================================================
+
+Driver
+======
+
+::
+
+ int eisa_driver_register (struct eisa_driver *edrv);
+ void eisa_driver_unregister (struct eisa_driver *edrv);
Clear enough ?
-struct eisa_device_id {
- char sig[EISA_SIG_LEN];
- unsigned long driver_data;
-};
-
-struct eisa_driver {
- const struct eisa_device_id *id_table;
- struct device_driver driver;
-};
-
-id_table : an array of NULL terminated EISA id strings,
- followed by an empty string. Each string can
- optionally be paired with a driver-dependent value
- (driver_data).
-
-driver : a generic driver, such as described in
- Documentation/driver-model/driver.txt. Only .name,
- .probe and .remove members are mandatory.
-
-An example is the 3c59x driver :
-
-static struct eisa_device_id vortex_eisa_ids[] = {
- { "TCM5920", EISA_3C592_OFFSET },
- { "TCM5970", EISA_3C597_OFFSET },
- { "" }
-};
-
-static struct eisa_driver vortex_eisa_driver = {
- .id_table = vortex_eisa_ids,
- .driver = {
- .name = "3c59x",
- .probe = vortex_eisa_probe,
- .remove = vortex_eisa_remove
- }
-};
-
-** Device :
+::
+
+ struct eisa_device_id {
+ char sig[EISA_SIG_LEN];
+ unsigned long driver_data;
+ };
+
+ struct eisa_driver {
+ const struct eisa_device_id *id_table;
+ struct device_driver driver;
+ };
+
+=============== ====================================================
+id_table an array of NULL terminated EISA id strings,
+ followed by an empty string. Each string can
+ optionally be paired with a driver-dependent value
+ (driver_data).
+
+driver a generic driver, such as described in
+ Documentation/driver-model/driver.txt. Only .name,
+ .probe and .remove members are mandatory.
+=============== ====================================================
+
+An example is the 3c59x driver::
+
+ static struct eisa_device_id vortex_eisa_ids[] = {
+ { "TCM5920", EISA_3C592_OFFSET },
+ { "TCM5970", EISA_3C597_OFFSET },
+ { "" }
+ };
+
+ static struct eisa_driver vortex_eisa_driver = {
+ .id_table = vortex_eisa_ids,
+ .driver = {
+ .name = "3c59x",
+ .probe = vortex_eisa_probe,
+ .remove = vortex_eisa_remove
+ }
+ };
+
+Device
+======
The sysfs framework calls .probe and .remove functions upon device
discovery and removal (note that the .remove function is only called
when driver is built as a module).
Both functions are passed a pointer to a 'struct device', which is
-encapsulated in a 'struct eisa_device' described as follows :
-
-struct eisa_device {
- struct eisa_device_id id;
- int slot;
- int state;
- unsigned long base_addr;
- struct resource res[EISA_MAX_RESOURCES];
- u64 dma_mask;
- struct device dev; /* generic device */
-};
-
-id : EISA id, as read from device. id.driver_data is set from the
- matching driver EISA id.
-slot : slot number which the device was detected on
-state : set of flags indicating the state of the device. Current
- flags are EISA_CONFIG_ENABLED and EISA_CONFIG_FORCED.
-res : set of four 256 bytes I/O regions allocated to this device
-dma_mask: DMA mask set from the parent device.
-dev : generic device (see Documentation/driver-model/device.txt)
+encapsulated in a 'struct eisa_device' described as follows::
+
+ struct eisa_device {
+ struct eisa_device_id id;
+ int slot;
+ int state;
+ unsigned long base_addr;
+ struct resource res[EISA_MAX_RESOURCES];
+ u64 dma_mask;
+ struct device dev; /* generic device */
+ };
+
+======== ============================================================
+id EISA id, as read from device. id.driver_data is set from the
+ matching driver EISA id.
+slot slot number which the device was detected on
+state set of flags indicating the state of the device. Current
+ flags are EISA_CONFIG_ENABLED and EISA_CONFIG_FORCED.
+res set of four 256 bytes I/O regions allocated to this device
+dma_mask DMA mask set from the parent device.
+dev generic device (see Documentation/driver-model/device.txt)
+======== ============================================================
You can get the 'struct eisa_device' from 'struct device' using the
'to_eisa_device' macro.
-** Misc stuff :
+Misc stuff
+==========
+
+::
-void eisa_set_drvdata (struct eisa_device *edev, void *data);
+ void eisa_set_drvdata (struct eisa_device *edev, void *data);
Stores data into the device's driver_data area.
-void *eisa_get_drvdata (struct eisa_device *edev):
+::
+
+ void *eisa_get_drvdata (struct eisa_device *edev):
Gets the pointer previously stored into the device's driver_data area.
-int eisa_get_region_index (void *addr);
+::
+
+ int eisa_get_region_index (void *addr);
Returns the region number (0 <= x < EISA_MAX_RESOURCES) of a given
address.
-** Kernel parameters :
+Kernel parameters
+=================
-eisa_bus.enable_dev :
+eisa_bus.enable_dev
+ A comma-separated list of slots to be enabled, even if the firmware
+ set the card as disabled. The driver must be able to properly
+ initialize the device in such conditions.
-A comma-separated list of slots to be enabled, even if the firmware
-set the card as disabled. The driver must be able to properly
-initialize the device in such conditions.
+eisa_bus.disable_dev
+ A comma-separated list of slots to be enabled, even if the firmware
+ set the card as enabled. The driver won't be called to handle this
+ device.
-eisa_bus.disable_dev :
+virtual_root.force_probe
+ Force the probing code to probe EISA slots even when it cannot find an
+ EISA compliant mainboard (nothing appears on slot 0). Defaults to 0
+ (don't force), and set to 1 (force probing) when either
+ CONFIG_ALPHA_JENSEN or CONFIG_EISA_VLB_PRIMING are set.
-A comma-separated list of slots to be enabled, even if the firmware
-set the card as enabled. The driver won't be called to handle this
-device.
-
-virtual_root.force_probe :
-
-Force the probing code to probe EISA slots even when it cannot find an
-EISA compliant mainboard (nothing appears on slot 0). Defaults to 0
-(don't force), and set to 1 (force probing) when either
-CONFIG_ALPHA_JENSEN or CONFIG_EISA_VLB_PRIMING are set.
-
-** Random notes :
+Random notes
+============
Converting an EISA driver to the new API mostly involves *deleting*
code (since probing is now in the core EISA code). Unfortunately, most
@@ -194,9 +219,11 @@ routine.
For example, switching your favorite EISA SCSI card to the "hotplug"
model is "the right thing"(tm).
-** Thanks :
+Thanks
+======
+
+I'd like to thank the following people for their help:
-I'd like to thank the following people for their help :
- Xavier Benigni for lending me a wonderful Alpha Jensen,
- James Bottomley, Jeff Garzik for getting this stuff into the kernel,
- Andries Brouwer for contributing numerous EISA ids,
diff --git a/Documentation/errseq.rst b/Documentation/errseq.rst
new file mode 100644
index 000000000000..4c29bd5afbc5
--- /dev/null
+++ b/Documentation/errseq.rst
@@ -0,0 +1,149 @@
+The errseq_t datatype
+=====================
+An errseq_t is a way of recording errors in one place, and allowing any
+number of "subscribers" to tell whether it has changed since a previous
+point where it was sampled.
+
+The initial use case for this is tracking errors for file
+synchronization syscalls (fsync, fdatasync, msync and sync_file_range),
+but it may be usable in other situations.
+
+It's implemented as an unsigned 32-bit value. The low order bits are
+designated to hold an error code (between 1 and MAX_ERRNO). The upper bits
+are used as a counter. This is done with atomics instead of locking so that
+these functions can be called from any context.
+
+Note that there is a risk of collisions if new errors are being recorded
+frequently, since we have so few bits to use as a counter.
+
+To mitigate this, the bit between the error value and counter is used as
+a flag to tell whether the value has been sampled since a new value was
+recorded. That allows us to avoid bumping the counter if no one has
+sampled it since the last time an error was recorded.
+
+Thus we end up with a value that looks something like this::
+
+ bit: 31..13 12 11..0
+ +-----------------+----+----------------+
+ | counter | SF | errno |
+ +-----------------+----+----------------+
+
+The general idea is for "watchers" to sample an errseq_t value and keep
+it as a running cursor. That value can later be used to tell whether
+any new errors have occurred since that sampling was done, and atomically
+record the state at the time that it was checked. This allows us to
+record errors in one place, and then have a number of "watchers" that
+can tell whether the value has changed since they last checked it.
+
+A new errseq_t should always be zeroed out. An errseq_t value of all zeroes
+is the special (but common) case where there has never been an error. An all
+zero value thus serves as the "epoch" if one wishes to know whether there
+has ever been an error set since it was first initialized.
+
+API usage
+=========
+Let me tell you a story about a worker drone. Now, he's a good worker
+overall, but the company is a little...management heavy. He has to
+report to 77 supervisors today, and tomorrow the "big boss" is coming in
+from out of town and he's sure to test the poor fellow too.
+
+They're all handing him work to do -- so much he can't keep track of who
+handed him what, but that's not really a big problem. The supervisors
+just want to know when he's finished all of the work they've handed him so
+far and whether he made any mistakes since they last asked.
+
+He might have made the mistake on work they didn't actually hand him,
+but he can't keep track of things at that level of detail, all he can
+remember is the most recent mistake that he made.
+
+Here's our worker_drone representation::
+
+ struct worker_drone {
+ errseq_t wd_err; /* for recording errors */
+ };
+
+Every day, the worker_drone starts out with a blank slate::
+
+ struct worker_drone wd;
+
+ wd.wd_err = (errseq_t)0;
+
+The supervisors come in and get an initial read for the day. They
+don't care about anything that happened before their watch begins::
+
+ struct supervisor {
+ errseq_t s_wd_err; /* private "cursor" for wd_err */
+ spinlock_t s_wd_err_lock; /* protects s_wd_err */
+ }
+
+ struct supervisor su;
+
+ su.s_wd_err = errseq_sample(&wd.wd_err);
+ spin_lock_init(&su.s_wd_err_lock);
+
+Now they start handing him tasks to do. Every few minutes they ask him to
+finish up all of the work they've handed him so far. Then they ask him
+whether he made any mistakes on any of it::
+
+ spin_lock(&su.su_wd_err_lock);
+ err = errseq_check_and_advance(&wd.wd_err, &su.s_wd_err);
+ spin_unlock(&su.su_wd_err_lock);
+
+Up to this point, that just keeps returning 0.
+
+Now, the owners of this company are quite miserly and have given him
+substandard equipment with which to do his job. Occasionally it
+glitches and he makes a mistake. He sighs a heavy sigh, and marks it
+down::
+
+ errseq_set(&wd.wd_err, -EIO);
+
+...and then gets back to work. The supervisors eventually poll again
+and they each get the error when they next check. Subsequent calls will
+return 0, until another error is recorded, at which point it's reported
+to each of them once.
+
+Note that the supervisors can't tell how many mistakes he made, only
+whether one was made since they last checked, and the latest value
+recorded.
+
+Occasionally the big boss comes in for a spot check and asks the worker
+to do a one-off job for him. He's not really watching the worker
+full-time like the supervisors, but he does need to know whether a
+mistake occurred while his job was processing.
+
+He can just sample the current errseq_t in the worker, and then use that
+to tell whether an error has occurred later::
+
+ errseq_t since = errseq_sample(&wd.wd_err);
+ /* submit some work and wait for it to complete */
+ err = errseq_check(&wd.wd_err, since);
+
+Since he's just going to discard "since" after that point, he doesn't
+need to advance it here. He also doesn't need any locking since it's
+not usable by anyone else.
+
+Serializing errseq_t cursor updates
+===================================
+Note that the errseq_t API does not protect the errseq_t cursor during a
+check_and_advance_operation. Only the canonical error code is handled
+atomically. In a situation where more than one task might be using the
+same errseq_t cursor at the same time, it's important to serialize
+updates to that cursor.
+
+If that's not done, then it's possible for the cursor to go backward
+in which case the same error could be reported more than once.
+
+Because of this, it's often advantageous to first do an errseq_check to
+see if anything has changed, and only later do an
+errseq_check_and_advance after taking the lock. e.g.::
+
+ if (errseq_check(&wd.wd_err, READ_ONCE(su.s_wd_err)) {
+ /* su.s_wd_err is protected by s_wd_err_lock */
+ spin_lock(&su.s_wd_err_lock);
+ err = errseq_check_and_advance(&wd.wd_err, &su.s_wd_err);
+ spin_unlock(&su.s_wd_err_lock);
+ }
+
+That avoids the spinlock in the common case where nothing has changed
+since the last time it was checked.
diff --git a/Documentation/fault-injection/fault-injection.txt b/Documentation/fault-injection/fault-injection.txt
index 415484f3d59a..918972babcd8 100644
--- a/Documentation/fault-injection/fault-injection.txt
+++ b/Documentation/fault-injection/fault-injection.txt
@@ -134,6 +134,23 @@ use the boot option:
fail_futex=
mmc_core.fail_request=<interval>,<probability>,<space>,<times>
+o proc entries
+
+- /proc/<pid>/fail-nth:
+- /proc/self/task/<tid>/fail-nth:
+
+ Write to this file of integer N makes N-th call in the task fail.
+ Read from this file returns a integer value. A value of '0' indicates
+ that the fault setup with a previous write to this file was injected.
+ A positive integer N indicates that the fault wasn't yet injected.
+ Note that this file enables all types of faults (slab, futex, etc).
+ This setting takes precedence over all other generic debugfs settings
+ like probability, interval, times, etc. But per-capability settings
+ (e.g. fail_futex/ignore-private) take precedence over it.
+
+ This feature is intended for systematic testing of faults in a single
+ system call. See an example below.
+
How to add new fault injection capability
-----------------------------------------
@@ -278,3 +295,65 @@ allocation failure.
# env FAILCMD_TYPE=fail_page_alloc \
./tools/testing/fault-injection/failcmd.sh --times=100 \
-- make -C tools/testing/selftests/ run_tests
+
+Systematic faults using fail-nth
+---------------------------------
+
+The following code systematically faults 0-th, 1-st, 2-nd and so on
+capabilities in the socketpair() system call.
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <sys/syscall.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+
+int main()
+{
+ int i, err, res, fail_nth, fds[2];
+ char buf[128];
+
+ system("echo N > /sys/kernel/debug/failslab/ignore-gfp-wait");
+ sprintf(buf, "/proc/self/task/%ld/fail-nth", syscall(SYS_gettid));
+ fail_nth = open(buf, O_RDWR);
+ for (i = 1;; i++) {
+ sprintf(buf, "%d", i);
+ write(fail_nth, buf, strlen(buf));
+ res = socketpair(AF_LOCAL, SOCK_STREAM, 0, fds);
+ err = errno;
+ pread(fail_nth, buf, sizeof(buf), 0);
+ if (res == 0) {
+ close(fds[0]);
+ close(fds[1]);
+ }
+ printf("%d-th fault %c: res=%d/%d\n", i, atoi(buf) ? 'N' : 'Y',
+ res, err);
+ if (atoi(buf))
+ break;
+ }
+ return 0;
+}
+
+An example output:
+
+1-th fault Y: res=-1/23
+2-th fault Y: res=-1/23
+3-th fault Y: res=-1/12
+4-th fault Y: res=-1/12
+5-th fault Y: res=-1/23
+6-th fault Y: res=-1/23
+7-th fault Y: res=-1/23
+8-th fault Y: res=-1/12
+9-th fault Y: res=-1/12
+10-th fault Y: res=-1/12
+11-th fault Y: res=-1/12
+12-th fault Y: res=-1/12
+13-th fault Y: res=-1/12
+14-th fault Y: res=-1/12
+15-th fault Y: res=-1/12
+16-th fault N: res=0/12
diff --git a/Documentation/fb/api.txt b/Documentation/fb/api.txt
index d4ff7de85700..d52cf1e3b975 100644
--- a/Documentation/fb/api.txt
+++ b/Documentation/fb/api.txt
@@ -289,12 +289,12 @@ the FB_CAP_FOURCC bit in the fb_fix_screeninfo capabilities field.
FOURCC definitions are located in the linux/videodev2.h header. However, and
despite starting with the V4L2_PIX_FMT_prefix, they are not restricted to V4L2
and don't require usage of the V4L2 subsystem. FOURCC documentation is
-available in Documentation/DocBook/v4l/pixfmt.xml.
+available in Documentation/media/uapi/v4l/pixfmt.rst.
To select a format, applications set the grayscale field to the desired FOURCC.
For YUV formats, they should also select the appropriate colorspace by setting
the colorspace field to one of the colorspaces listed in linux/videodev2.h and
-documented in Documentation/DocBook/v4l/colorspaces.xml.
+documented in Documentation/media/uapi/v4l/colorspaces.rst.
The red, green, blue and transp fields are not used with the FOURCC-based API.
For forward compatibility reasons applications must zero those fields, and
diff --git a/Documentation/fb/efifb.txt b/Documentation/fb/efifb.txt
index a59916c29b33..1a85c1bdaf38 100644
--- a/Documentation/fb/efifb.txt
+++ b/Documentation/fb/efifb.txt
@@ -27,5 +27,11 @@ You have to add the following kernel parameters in your elilo.conf:
Macbook Pro 17", iMac 20" :
video=efifb:i20
+Accepted options:
+
+nowc Don't map the framebuffer write combined. This can be used
+ to workaround side-effects and slowdowns on other CPU cores
+ when large amounts of console data are written.
+
--
Edgar Hucek <gimli@dark-green.com>
diff --git a/Documentation/fb/fbcon.txt b/Documentation/fb/fbcon.txt
index 4a9739abc860..a38d3aa4d189 100644
--- a/Documentation/fb/fbcon.txt
+++ b/Documentation/fb/fbcon.txt
@@ -148,6 +148,13 @@ C. Boot options
Actually, the underlying fb driver is totally ignorant of console
rotation.
+5. fbcon=margin:<color>
+
+ This option specifies the color of the margins. The margins are the
+ leftover area at the right and the bottom of the screen that are not
+ used by text. By default, this area will be black. The 'color' value
+ is an integer number that depends on the framebuffer driver being used.
+
C. Attaching, Detaching and Unloading
Before going on how to attach, detach and unload the framebuffer console, an
diff --git a/Documentation/features/core/tracehook/arch-support.txt b/Documentation/features/core/tracehook/arch-support.txt
index 5e97a89420ef..dfb638c2f842 100644
--- a/Documentation/features/core/tracehook/arch-support.txt
+++ b/Documentation/features/core/tracehook/arch-support.txt
@@ -25,7 +25,7 @@
| mn10300: | ok |
| nios2: | ok |
| openrisc: | ok |
- | parisc: | TODO |
+ | parisc: | ok |
| powerpc: | ok |
| s390: | ok |
| score: | TODO |
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index fe25787ff6d4..75d2d57e2c44 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -22,7 +22,7 @@ prototypes:
struct vfsmount *(*d_automount)(struct path *path);
int (*d_manage)(const struct path *, bool);
struct dentry *(*d_real)(struct dentry *, const struct inode *,
- unsigned int);
+ unsigned int, unsigned int);
locking rules:
rename_lock ->d_lock may block rcu-walk
diff --git a/Documentation/filesystems/caching/netfs-api.txt b/Documentation/filesystems/caching/netfs-api.txt
index aed6b94160b1..0eb31de3a2c1 100644
--- a/Documentation/filesystems/caching/netfs-api.txt
+++ b/Documentation/filesystems/caching/netfs-api.txt
@@ -151,8 +151,6 @@ To define an object, a structure of the following type should be filled out:
void (*mark_pages_cached)(void *cookie_netfs_data,
struct address_space *mapping,
struct pagevec *cached_pvec);
-
- void (*now_uncached)(void *cookie_netfs_data);
};
This has the following fields:
diff --git a/Documentation/filesystems/cifs/AUTHORS b/Documentation/filesystems/cifs/AUTHORS
index c98800df677f..9f4f87e16240 100644
--- a/Documentation/filesystems/cifs/AUTHORS
+++ b/Documentation/filesystems/cifs/AUTHORS
@@ -41,6 +41,11 @@ Igor Mammedov (DFS support)
Jeff Layton (many, many fixes, as well as great work on the cifs Kerberos code)
Scott Lovenberg
Pavel Shilovsky (for great work adding SMB2 support, and various SMB3 features)
+Aurelien Aptel (for DFS SMB3 work and some key bug fixes)
+Ronnie Sahlberg (for SMB3 xattr work and bug fixes)
+Shirish Pargaonkar (for many ACL patches over the years)
+Sachin Prabhu (many bug fixes, including for reconnect, copy offload and security)
+
Test case and Bug Report contributors
-------------------------------------
diff --git a/Documentation/filesystems/cifs/README b/Documentation/filesystems/cifs/README
index a54788405429..a9da51553ba3 100644
--- a/Documentation/filesystems/cifs/README
+++ b/Documentation/filesystems/cifs/README
@@ -1,10 +1,14 @@
-The CIFS VFS support for Linux supports many advanced network filesystem
-features such as hierarchical dfs like namespace, hardlinks, locking and more.
+This module supports the SMB3 family of advanced network protocols (as well
+as older dialects, originally called "CIFS" or SMB1).
+
+The CIFS VFS module for Linux supports many advanced network filesystem
+features such as hierarchical DFS like namespace, hardlinks, locking and more.
It was designed to comply with the SNIA CIFS Technical Reference (which
supersedes the 1992 X/Open SMB Standard) as well as to perform best practice
practical interoperability with Windows 2000, Windows XP, Samba and equivalent
servers. This code was developed in participation with the Protocol Freedom
-Information Foundation.
+Information Foundation. CIFS and now SMB3 has now become a defacto
+standard for interoperating between Macs and Windows and major NAS appliances.
Please see
http://protocolfreedom.org/ and
@@ -15,30 +19,11 @@ for more details.
For questions or bug reports please contact:
sfrench@samba.org (sfrench@us.ibm.com)
+See the project page at: https://wiki.samba.org/index.php/LinuxCIFS_utils
+
Build instructions:
==================
-For Linux 2.4:
-1) Get the kernel source (e.g.from http://www.kernel.org)
-and download the cifs vfs source (see the project page
-at http://us1.samba.org/samba/Linux_CIFS_client.html)
-and change directory into the top of the kernel directory
-then patch the kernel (e.g. "patch -p1 < cifs_24.patch")
-to add the cifs vfs to your kernel configure options if
-it has not already been added (e.g. current SuSE and UL
-users do not need to apply the cifs_24.patch since the cifs vfs is
-already in the kernel configure menu) and then
-mkdir linux/fs/cifs and then copy the current cifs vfs files from
-the cifs download to your kernel build directory e.g.
-
- cp <cifs_download_dir>/fs/cifs/* to <kernel_download_dir>/fs/cifs
-
-2) make menuconfig (or make xconfig)
-3) select cifs from within the network filesystem choices
-4) save and exit
-5) make dep
-6) make modules (or "make" if CIFS VFS not to be built as a module)
-
-For Linux 2.6:
+For Linux:
1) Download the kernel (e.g. from http://www.kernel.org)
and change directory into the top of the kernel directory tree
(e.g. /usr/src/linux-2.5.73)
@@ -61,16 +46,13 @@ would simply type "make install").
If you do not have the utility mount.cifs (in the Samba 3.0 source tree and on
the CIFS VFS web site) copy it to the same directory in which mount.smbfs and
similar files reside (usually /sbin). Although the helper software is not
-required, mount.cifs is recommended. Eventually the Samba 3.0 utility program
-"net" may also be helpful since it may someday provide easier mount syntax for
-users who are used to Windows e.g.
- net use <mount point> <UNC name or cifs URL>
+required, mount.cifs is recommended. Most distros include a "cifs-utils"
+package that includes this utility so it is recommended to install this.
+
Note that running the Winbind pam/nss module (logon service) on all of your
Linux clients is useful in mapping Uids and Gids consistently across the
domain to the proper network user. The mount.cifs mount helper can be
-trivially built from Samba 3.0 or later source e.g. by executing:
-
- gcc samba/source/client/mount.cifs.c -o mount.cifs
+found at cifs-utils.git on git.samba.org
If cifs is built as a module, then the size and number of network buffers
and maximum number of simultaneous requests to one server can be configured.
@@ -79,6 +61,18 @@ Changing these from their defaults is not recommended. By executing modinfo
on kernel/fs/cifs/cifs.ko the list of configuration changes that can be made
at module initialization time (by running insmod cifs.ko) can be seen.
+Recommendations
+===============
+To improve security the SMB2.1 dialect or later (usually will get SMB3) is now
+the new default. To use old dialects (e.g. to mount Windows XP) use "vers=1.0"
+on mount (or vers=2.0 for Windows Vista). Note that the CIFS (vers=1.0) is
+much older and less secure than the default dialect SMB3 which includes
+many advanced security features such as downgrade attack detection
+and encrypted shares and stronger signing and authentication algorithms.
+There are additional mount options that may be helpful for SMB3 to get
+improved POSIX behavior (NB: can use vers=3.0 to force only SMB3, never 2.1):
+ "mfsymlinks" and "cifsacl" and "idsfromsid"
+
Allowing User Mounts
====================
To permit users to mount and unmount over directories they own is possible
@@ -98,9 +92,7 @@ and execution of suid programs on the remote target would be enabled
by default. This can be changed, as with nfs and other filesystems,
by simply specifying "nosuid" among the mount options. For user mounts
though to be able to pass the suid flag to mount requires rebuilding
-mount.cifs with the following flag:
-
- gcc samba/source/client/mount.cifs.c -DCIFS_ALLOW_USR_SUID -o mount.cifs
+mount.cifs with the following flag: CIFS_ALLOW_USR_SUID
There is a corresponding manual page for cifs mounting in the Samba 3.0 and
later source tree in docs/manpages/mount.cifs.8
@@ -189,18 +181,18 @@ applications running on the same server as Samba.
Use instructions:
================
Once the CIFS VFS support is built into the kernel or installed as a module
-(cifs.o), you can use mount syntax like the following to access Samba or Windows
-servers:
+(cifs.ko), you can use mount syntax like the following to access Samba or
+Mac or Windows servers:
- mount -t cifs //9.53.216.11/e$ /mnt -o user=myname,pass=mypassword
+ mount -t cifs //9.53.216.11/e$ /mnt -o username=myname,password=mypassword
Before -o the option -v may be specified to make the mount.cifs
mount helper display the mount steps more verbosely.
After -o the following commonly used cifs vfs specific options
are supported:
- user=<username>
- pass=<password>
+ username=<username>
+ password=<password>
domain=<domain name>
Other cifs mount options are described below. Use of TCP names (in addition to
@@ -246,13 +238,16 @@ the Server's registry. Samba starting with version 3.10 will allow such
filenames (ie those which contain valid Linux characters, which normally
would be forbidden for Windows/CIFS semantics) as long as the server is
configured for Unix Extensions (and the client has not disabled
-/proc/fs/cifs/LinuxExtensionsEnabled).
-
+/proc/fs/cifs/LinuxExtensionsEnabled). In addition the mount option
+"mapposix" can be used on CIFS (vers=1.0) to force the mapping of
+illegal Windows/NTFS/SMB characters to a remap range (this mount parm
+is the default for SMB3). This remap ("mapposix") range is also
+compatible with Mac (and "Services for Mac" on some older Windows).
CIFS VFS Mount Options
======================
A partial list of the supported mount options follows:
- user The user name to use when trying to establish
+ username The user name to use when trying to establish
the CIFS session.
password The user password. If the mount helper is
installed, the user will be prompted for password
diff --git a/Documentation/filesystems/cifs/TODO b/Documentation/filesystems/cifs/TODO
index 066ffddc3964..396ecfd6ff4a 100644
--- a/Documentation/filesystems/cifs/TODO
+++ b/Documentation/filesystems/cifs/TODO
@@ -1,4 +1,4 @@
-Version 2.03 August 1, 2014
+Version 2.04 September 13, 2017
A Partial List of Missing Features
==================================
@@ -8,73 +8,69 @@ for visible, important contributions to this module. Here
is a partial list of the known problems and missing features:
a) SMB3 (and SMB3.02) missing optional features:
- - RDMA
+ - RDMA (started)
- multichannel (started)
- directory leases (improved metadata caching)
- T10 copy offload (copy chunk is only mechanism supported)
- - encrypted shares
b) improved sparse file support
c) Directory entry caching relies on a 1 second timer, rather than
-using FindNotify or equivalent. - (started)
+using Directory Leases
d) quota support (needs minor kernel change since quota calls
to make it to network filesystems or deviceless filesystems)
-e) improve support for very old servers (OS/2 and Win9x for example)
-Including support for changing the time remotely (utimes command).
+e) Better optimize open to reduce redundant opens (using reference
+counts more) and to improve use of compounding in SMB3 to reduce
+number of roundtrips.
-f) hook lower into the sockets api (as NFS/SunRPC does) to avoid the
-extra copy in/out of the socket buffers in some cases.
-
-g) Better optimize open (and pathbased setfilesize) to reduce the
-oplock breaks coming from windows srv. Piggyback identical file
-opens on top of each other by incrementing reference count rather
-than resending (helps reduce server resource utilization and avoid
-spurious oplock breaks).
-
-h) Add support for storing symlink info to Windows servers
-in the Extended Attribute format their SFU clients would recognize.
-
-i) Finish inotify support so kde and gnome file list windows
+f) Finish inotify support so kde and gnome file list windows
will autorefresh (partially complete by Asser). Needs minor kernel
vfs change to support removing D_NOTIFY on a file.
-j) Add GUI tool to configure /proc/fs/cifs settings and for display of
+g) Add GUI tool to configure /proc/fs/cifs settings and for display of
the CIFS statistics (started)
-k) implement support for security and trusted categories of xattrs
+h) implement support for security and trusted categories of xattrs
(requires minor protocol extension) to enable better support for SELINUX
-l) Implement O_DIRECT flag on open (already supported on mount)
+i) Implement O_DIRECT flag on open (already supported on mount)
-m) Create UID mapping facility so server UIDs can be mapped on a per
+j) Create UID mapping facility so server UIDs can be mapped on a per
mount or a per server basis to client UIDs or nobody if no mapping
-exists. This is helpful when Unix extensions are negotiated to
-allow better permission checking when UIDs differ on the server
-and client. Add new protocol request to the CIFS protocol
-standard for asking the server for the corresponding name of a
-particular uid.
+exists. Also better integration with winbind for resolving SID owners
+
+k) Add tools to take advantage of more smb3 specific ioctls and features
+
+l) encrypted file support
+
+m) improved stats gathering, tools (perhaps integration with nfsometer?)
-n) DOS attrs - returned as pseudo-xattr in Samba format (check VFAT and NTFS for this too)
+n) allow setting more NTFS/SMB3 file attributes remotely (currently limited to compressed
+file attribute via chflags) and improve user space tools for managing and
+viewing them.
-o) mount check for unmatched uids
+o) mount helper GUI (to simplify the various configuration options on mount)
-p) Add support for new vfs entry point for fallocate
+p) autonegotiation of dialects (offering more than one dialect ie SMB3.02,
+SMB3, SMB2.1 not just SMB3).
-q) Add tools to take advantage of cifs/smb3 specific ioctls and features
-such as "CopyChunk" (fast server side file copy)
+q) Allow mount.cifs to be more verbose in reporting errors with dialect
+or unsupported feature errors.
-r) encrypted file support
+r) updating cifs documentation, and user guid.
-s) improved stats gathering, tools (perhaps integration with nfsometer?)
+s) Addressing bugs found by running a broader set of xfstests in standard
+file system xfstest suite.
-t) allow setting more NTFS/SMB3 file attributes remotely (currently limited to compressed
-file attribute via chflags)
+t) split cifs and smb3 support into separate modules so legacy (and less
+secure) CIFS dialect can be disabled in environments that don't need it
+and simplify the code.
-u) mount helper GUI (to simplify the various configuration options on mount)
+u) Finish up SMB3.1.1 dialect support
+v) POSIX Extensions for SMB3.1.1
KNOWN BUGS
====================================
diff --git a/Documentation/filesystems/cifs/cifs.txt b/Documentation/filesystems/cifs/cifs.txt
index 2fac91ac96cf..67756607246e 100644
--- a/Documentation/filesystems/cifs/cifs.txt
+++ b/Documentation/filesystems/cifs/cifs.txt
@@ -1,24 +1,28 @@
- This is the client VFS module for the Common Internet File System
- (CIFS) protocol which is the successor to the Server Message Block
+ This is the client VFS module for the SMB3 NAS protocol as well
+ older dialects such as the Common Internet File System (CIFS)
+ protocol which was the successor to the Server Message Block
(SMB) protocol, the native file sharing mechanism for most early
PC operating systems. New and improved versions of CIFS are now
called SMB2 and SMB3. These dialects are also supported by the
CIFS VFS module. CIFS is fully supported by network
- file servers such as Windows 2000, 2003, 2008 and 2012
+ file servers such as Windows 2000, 2003, 2008, 2012 and 2016
as well by Samba (which provides excellent CIFS
- server support for Linux and many other operating systems), so
+ server support for Linux and many other operating systems), Apple
+ systems, as well as most Network Attached Storage vendors, so
this network filesystem client can mount to a wide variety of
servers.
The intent of this module is to provide the most advanced network
- file system function for CIFS compliant servers, including better
- POSIX compliance, secure per-user session establishment, high
- performance safe distributed caching (oplock), optional packet
+ file system function for SMB3 compliant servers, including advanced
+ security features, excellent parallelized high performance i/o, better
+ POSIX compliance, secure per-user session establishment, encryption,
+ high performance safe distributed caching (leases/oplocks), optional packet
signing, large files, Unicode support and other internationalization
improvements. Since both Samba server and this filesystem client support
- the CIFS Unix extensions, the combination can provide a reasonable
- alternative to NFSv4 for fileserving in some Linux to Linux environments,
- not just in Linux to Windows environments.
+ the CIFS Unix extensions (and in the future SMB3 POSIX extensions),
+ the combination can provide a reasonable alternative to other network and
+ cluster file systems for fileserving in some Linux to Linux environments,
+ not just in Linux to Windows (or Linux to Mac) environments.
This filesystem has an mount utility (mount.cifs) that can be obtained from
diff --git a/Documentation/filesystems/conf.py b/Documentation/filesystems/conf.py
new file mode 100644
index 000000000000..ea44172af5c4
--- /dev/null
+++ b/Documentation/filesystems/conf.py
@@ -0,0 +1,10 @@
+# -*- coding: utf-8; mode: python -*-
+
+project = "Linux Filesystems API"
+
+tags.add("subproject")
+
+latex_documents = [
+ ('index', 'filesystems.tex', project,
+ 'The kernel development community', 'manual'),
+]
diff --git a/Documentation/filesystems/dax.txt b/Documentation/filesystems/dax.txt
index a7e6e14aeb08..3be3b266be41 100644
--- a/Documentation/filesystems/dax.txt
+++ b/Documentation/filesystems/dax.txt
@@ -63,9 +63,8 @@ Filesystem support consists of
- implementing an mmap file operation for DAX files which sets the
VM_MIXEDMAP and VM_HUGEPAGE flags on the VMA, and setting the vm_ops to
include handlers for fault, pmd_fault, page_mkwrite, pfn_mkwrite. These
- handlers should probably call dax_iomap_fault() (for fault and page_mkwrite
- handlers), dax_iomap_pmd_fault(), dax_pfn_mkwrite() passing the appropriate
- iomap operations.
+ handlers should probably call dax_iomap_fault() passing the appropriate
+ fault size and iomap operations.
- calling iomap_zero_range() passing appropriate iomap operations instead of
block_truncate_page() for DAX files
- ensuring that there is sufficient locking between reads, writes,
diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt
index 4f6531a4701b..13c2ff034348 100644
--- a/Documentation/filesystems/f2fs.txt
+++ b/Documentation/filesystems/f2fs.txt
@@ -155,11 +155,25 @@ noinline_data Disable the inline data feature, inline data feature is
enabled by default.
data_flush Enable data flushing before checkpoint in order to
persist data of regular and symlink.
+fault_injection=%d Enable fault injection in all supported types with
+ specified injection rate.
mode=%s Control block allocation mode which supports "adaptive"
and "lfs". In "lfs" mode, there should be no random
writes towards main area.
io_bits=%u Set the bit size of write IO requests. It should be set
with "mode=lfs".
+usrquota Enable plain user disk quota accounting.
+grpquota Enable plain group disk quota accounting.
+prjquota Enable plain project quota accounting.
+usrjquota=<file> Appoint specified file and type during mount, so that quota
+grpjquota=<file> information can be properly updated during recovery flow,
+prjjquota=<file> <quota file>: must be in root directory;
+jqfmt=<quota type> <quota type>: [vfsold,vfsv0,vfsv1].
+offusrjquota Turn off user journelled quota.
+offgrpjquota Turn off group journelled quota.
+offprjjquota Turn off project journelled quota.
+quota Enable plain user disk quota accounting.
+noquota Disable all plain disk quota option.
================================================================================
DEBUGFS ENTRIES
@@ -205,6 +219,15 @@ Files in /sys/fs/f2fs/<devname>
gc_idle = 1 will select the Cost Benefit approach
& setting gc_idle = 2 will select the greedy approach.
+ gc_urgent This parameter controls triggering background GCs
+ urgently or not. Setting gc_urgent = 0 [default]
+ makes back to default behavior, while if it is set
+ to 1, background thread starts to do GC by given
+ gc_urgent_sleep_time interval.
+
+ gc_urgent_sleep_time This parameter controls sleep time for gc_urgent.
+ 500 ms is set by default. See above gc_urgent.
+
reclaim_segments This parameter controls the number of prefree
segments to be reclaimed. If the number of prefree
segments is larger than the number of segments
diff --git a/Documentation/filesystems/index.rst b/Documentation/filesystems/index.rst
new file mode 100644
index 000000000000..256e10eedba4
--- /dev/null
+++ b/Documentation/filesystems/index.rst
@@ -0,0 +1,317 @@
+=====================
+Linux Filesystems API
+=====================
+
+The Linux VFS
+=============
+
+The Filesystem types
+--------------------
+
+.. kernel-doc:: include/linux/fs.h
+ :internal:
+
+The Directory Cache
+-------------------
+
+.. kernel-doc:: fs/dcache.c
+ :export:
+
+.. kernel-doc:: include/linux/dcache.h
+ :internal:
+
+Inode Handling
+--------------
+
+.. kernel-doc:: fs/inode.c
+ :export:
+
+.. kernel-doc:: fs/bad_inode.c
+ :export:
+
+Registration and Superblocks
+----------------------------
+
+.. kernel-doc:: fs/super.c
+ :export:
+
+File Locks
+----------
+
+.. kernel-doc:: fs/locks.c
+ :export:
+
+.. kernel-doc:: fs/locks.c
+ :internal:
+
+Other Functions
+---------------
+
+.. kernel-doc:: fs/mpage.c
+ :export:
+
+.. kernel-doc:: fs/namei.c
+ :export:
+
+.. kernel-doc:: fs/buffer.c
+ :export:
+
+.. kernel-doc:: block/bio.c
+ :export:
+
+.. kernel-doc:: fs/seq_file.c
+ :export:
+
+.. kernel-doc:: fs/filesystems.c
+ :export:
+
+.. kernel-doc:: fs/fs-writeback.c
+ :export:
+
+.. kernel-doc:: fs/block_dev.c
+ :export:
+
+The proc filesystem
+===================
+
+sysctl interface
+----------------
+
+.. kernel-doc:: kernel/sysctl.c
+ :export:
+
+proc filesystem interface
+-------------------------
+
+.. kernel-doc:: fs/proc/base.c
+ :internal:
+
+Events based on file descriptors
+================================
+
+.. kernel-doc:: fs/eventfd.c
+ :export:
+
+The Filesystem for Exporting Kernel Objects
+===========================================
+
+.. kernel-doc:: fs/sysfs/file.c
+ :export:
+
+.. kernel-doc:: fs/sysfs/symlink.c
+ :export:
+
+The debugfs filesystem
+======================
+
+debugfs interface
+-----------------
+
+.. kernel-doc:: fs/debugfs/inode.c
+ :export:
+
+.. kernel-doc:: fs/debugfs/file.c
+ :export:
+
+The Linux Journalling API
+=========================
+
+Overview
+--------
+
+Details
+~~~~~~~
+
+The journalling layer is easy to use. You need to first of all create a
+journal_t data structure. There are two calls to do this dependent on
+how you decide to allocate the physical media on which the journal
+resides. The :c:func:`jbd2_journal_init_inode` call is for journals stored in
+filesystem inodes, or the :c:func:`jbd2_journal_init_dev` call can be used
+for journal stored on a raw device (in a continuous range of blocks). A
+journal_t is a typedef for a struct pointer, so when you are finally
+finished make sure you call :c:func:`jbd2_journal_destroy` on it to free up
+any used kernel memory.
+
+Once you have got your journal_t object you need to 'mount' or load the
+journal file. The journalling layer expects the space for the journal
+was already allocated and initialized properly by the userspace tools.
+When loading the journal you must call :c:func:`jbd2_journal_load` to process
+journal contents. If the client file system detects the journal contents
+does not need to be processed (or even need not have valid contents), it
+may call :c:func:`jbd2_journal_wipe` to clear the journal contents before
+calling :c:func:`jbd2_journal_load`.
+
+Note that jbd2_journal_wipe(..,0) calls
+:c:func:`jbd2_journal_skip_recovery` for you if it detects any outstanding
+transactions in the journal and similarly :c:func:`jbd2_journal_load` will
+call :c:func:`jbd2_journal_recover` if necessary. I would advise reading
+:c:func:`ext4_load_journal` in fs/ext4/super.c for examples on this stage.
+
+Now you can go ahead and start modifying the underlying filesystem.
+Almost.
+
+You still need to actually journal your filesystem changes, this is done
+by wrapping them into transactions. Additionally you also need to wrap
+the modification of each of the buffers with calls to the journal layer,
+so it knows what the modifications you are actually making are. To do
+this use :c:func:`jbd2_journal_start` which returns a transaction handle.
+
+:c:func:`jbd2_journal_start` and its counterpart :c:func:`jbd2_journal_stop`,
+which indicates the end of a transaction are nestable calls, so you can
+reenter a transaction if necessary, but remember you must call
+:c:func:`jbd2_journal_stop` the same number of times as
+:c:func:`jbd2_journal_start` before the transaction is completed (or more
+accurately leaves the update phase). Ext4/VFS makes use of this feature to
+simplify handling of inode dirtying, quota support, etc.
+
+Inside each transaction you need to wrap the modifications to the
+individual buffers (blocks). Before you start to modify a buffer you
+need to call :c:func:`jbd2_journal_get_create_access()` /
+:c:func:`jbd2_journal_get_write_access()` /
+:c:func:`jbd2_journal_get_undo_access()` as appropriate, this allows the
+journalling layer to copy the unmodified
+data if it needs to. After all the buffer may be part of a previously
+uncommitted transaction. At this point you are at last ready to modify a
+buffer, and once you are have done so you need to call
+:c:func:`jbd2_journal_dirty_metadata`. Or if you've asked for access to a
+buffer you now know is now longer required to be pushed back on the
+device you can call :c:func:`jbd2_journal_forget` in much the same way as you
+might have used :c:func:`bforget` in the past.
+
+A :c:func:`jbd2_journal_flush` may be called at any time to commit and
+checkpoint all your transactions.
+
+Then at umount time , in your :c:func:`put_super` you can then call
+:c:func:`jbd2_journal_destroy` to clean up your in-core journal object.
+
+Unfortunately there a couple of ways the journal layer can cause a
+deadlock. The first thing to note is that each task can only have a
+single outstanding transaction at any one time, remember nothing commits
+until the outermost :c:func:`jbd2_journal_stop`. This means you must complete
+the transaction at the end of each file/inode/address etc. operation you
+perform, so that the journalling system isn't re-entered on another
+journal. Since transactions can't be nested/batched across differing
+journals, and another filesystem other than yours (say ext4) may be
+modified in a later syscall.
+
+The second case to bear in mind is that :c:func:`jbd2_journal_start` can block
+if there isn't enough space in the journal for your transaction (based
+on the passed nblocks param) - when it blocks it merely(!) needs to wait
+for transactions to complete and be committed from other tasks, so
+essentially we are waiting for :c:func:`jbd2_journal_stop`. So to avoid
+deadlocks you must treat :c:func:`jbd2_journal_start` /
+:c:func:`jbd2_journal_stop` as if they were semaphores and include them in
+your semaphore ordering rules to prevent
+deadlocks. Note that :c:func:`jbd2_journal_extend` has similar blocking
+behaviour to :c:func:`jbd2_journal_start` so you can deadlock here just as
+easily as on :c:func:`jbd2_journal_start`.
+
+Try to reserve the right number of blocks the first time. ;-). This will
+be the maximum number of blocks you are going to touch in this
+transaction. I advise having a look at at least ext4_jbd.h to see the
+basis on which ext4 uses to make these decisions.
+
+Another wriggle to watch out for is your on-disk block allocation
+strategy. Why? Because, if you do a delete, you need to ensure you
+haven't reused any of the freed blocks until the transaction freeing
+these blocks commits. If you reused these blocks and crash happens,
+there is no way to restore the contents of the reallocated blocks at the
+end of the last fully committed transaction. One simple way of doing
+this is to mark blocks as free in internal in-memory block allocation
+structures only after the transaction freeing them commits. Ext4 uses
+journal commit callback for this purpose.
+
+With journal commit callbacks you can ask the journalling layer to call
+a callback function when the transaction is finally committed to disk,
+so that you can do some of your own management. You ask the journalling
+layer for calling the callback by simply setting
+``journal->j_commit_callback`` function pointer and that function is
+called after each transaction commit. You can also use
+``transaction->t_private_list`` for attaching entries to a transaction
+that need processing when the transaction commits.
+
+JBD2 also provides a way to block all transaction updates via
+:c:func:`jbd2_journal_lock_updates()` /
+:c:func:`jbd2_journal_unlock_updates()`. Ext4 uses this when it wants a
+window with a clean and stable fs for a moment. E.g.
+
+::
+
+
+ jbd2_journal_lock_updates() //stop new stuff happening..
+ jbd2_journal_flush() // checkpoint everything.
+ ..do stuff on stable fs
+ jbd2_journal_unlock_updates() // carry on with filesystem use.
+
+The opportunities for abuse and DOS attacks with this should be obvious,
+if you allow unprivileged userspace to trigger codepaths containing
+these calls.
+
+Summary
+~~~~~~~
+
+Using the journal is a matter of wrapping the different context changes,
+being each mount, each modification (transaction) and each changed
+buffer to tell the journalling layer about them.
+
+Data Types
+----------
+
+The journalling layer uses typedefs to 'hide' the concrete definitions
+of the structures used. As a client of the JBD2 layer you can just rely
+on the using the pointer as a magic cookie of some sort. Obviously the
+hiding is not enforced as this is 'C'.
+
+Structures
+~~~~~~~~~~
+
+.. kernel-doc:: include/linux/jbd2.h
+ :internal:
+
+Functions
+---------
+
+The functions here are split into two groups those that affect a journal
+as a whole, and those which are used to manage transactions
+
+Journal Level
+~~~~~~~~~~~~~
+
+.. kernel-doc:: fs/jbd2/journal.c
+ :export:
+
+.. kernel-doc:: fs/jbd2/recovery.c
+ :internal:
+
+Transasction Level
+~~~~~~~~~~~~~~~~~~
+
+.. kernel-doc:: fs/jbd2/transaction.c
+
+See also
+--------
+
+`Journaling the Linux ext2fs Filesystem, LinuxExpo 98, Stephen
+Tweedie <http://kernel.org/pub/linux/kernel/people/sct/ext3/journal-design.ps.gz>`__
+
+`Ext3 Journalling FileSystem, OLS 2000, Dr. Stephen
+Tweedie <http://olstrans.sourceforge.net/release/OLS2000-ext3/OLS2000-ext3.html>`__
+
+splice API
+==========
+
+splice is a method for moving blocks of data around inside the kernel,
+without continually transferring them between the kernel and user space.
+
+.. kernel-doc:: fs/splice.c
+
+pipes API
+=========
+
+Pipe interfaces are all for in-kernel (builtin image) use. They are not
+exported for use by modules.
+
+.. kernel-doc:: include/linux/pipe_fs_i.h
+ :internal:
+
+.. kernel-doc:: fs/pipe.c
diff --git a/Documentation/filesystems/nfs/idmapper.txt b/Documentation/filesystems/nfs/idmapper.txt
index fe03d10bb79a..b86831acd583 100644
--- a/Documentation/filesystems/nfs/idmapper.txt
+++ b/Documentation/filesystems/nfs/idmapper.txt
@@ -55,7 +55,7 @@ request-key will find the first matching line and corresponding program. In
this case, /some/other/program will handle all uid lookups and
/usr/sbin/nfs.idmap will handle gid, user, and group lookups.
-See <file:Documentation/security/keys-request-key.txt> for more information
+See <file:Documentation/security/keys/request-key.rst> for more information
about the request-key function.
diff --git a/Documentation/filesystems/orangefs.txt b/Documentation/filesystems/orangefs.txt
index 1dfdec790946..e2818b60a5c2 100644
--- a/Documentation/filesystems/orangefs.txt
+++ b/Documentation/filesystems/orangefs.txt
@@ -45,14 +45,11 @@ upstream version of the kernel client.
BUILDING THE USERSPACE FILESYSTEM ON A SINGLE SERVER
====================================================
-When Orangefs is upstream, "--with-kernel" shouldn't be needed, but
-until then the path to where the kernel with the Orangefs kernel client
-patch was built is needed to ensure that pvfs2-client-core (the bridge
-between kernel space and user space) will build properly. You can omit
---prefix if you don't care that things are sprinkled around in
-/usr/local.
+You can omit --prefix if you don't care that things are sprinkled around in
+/usr/local. As of version 2.9.6, Orangefs uses Berkeley DB by default, we
+will probably be changing the default to lmdb soon.
-./configure --prefix=/opt/ofs --with-kernel=/path/to/orangefs/kernel
+./configure --prefix=/opt/ofs --with-db-backend=lmdb
make
@@ -82,9 +79,6 @@ prove things are working with:
/opt/osf/bin/pvfs2-ls /mymountpoint
-You might not want to enforce selinux, it doesn't seem to matter by
-linux 3.11...
-
If stuff seems to be working, turn on the client core:
/opt/osf/sbin/pvfs2-client -p /opt/osf/sbin/pvfs2-client-core
diff --git a/Documentation/filesystems/overlayfs.txt b/Documentation/filesystems/overlayfs.txt
index c9e884b52698..8caa60734647 100644
--- a/Documentation/filesystems/overlayfs.txt
+++ b/Documentation/filesystems/overlayfs.txt
@@ -201,6 +201,43 @@ rightmost one and going left. In the above example lower1 will be the
top, lower2 the middle and lower3 the bottom layer.
+Sharing and copying layers
+--------------------------
+
+Lower layers may be shared among several overlay mounts and that is indeed
+a very common practice. An overlay mount may use the same lower layer
+path as another overlay mount and it may use a lower layer path that is
+beneath or above the path of another overlay lower layer path.
+
+Using an upper layer path and/or a workdir path that are already used by
+another overlay mount is not allowed and may fail with EBUSY. Using
+partially overlapping paths is not allowed but will not fail with EBUSY.
+If files are accessed from two overlayfs mounts which share or overlap the
+upper layer and/or workdir path the behavior of the overlay is undefined,
+though it will not result in a crash or deadlock.
+
+Mounting an overlay using an upper layer path, where the upper layer path
+was previously used by another mounted overlay in combination with a
+different lower layer path, is allowed, unless the "inodes index" feature
+is enabled.
+
+With the "inodes index" feature, on the first time mount, an NFS file
+handle of the lower layer root directory, along with the UUID of the lower
+filesystem, are encoded and stored in the "trusted.overlay.origin" extended
+attribute on the upper layer root directory. On subsequent mount attempts,
+the lower root directory file handle and lower filesystem UUID are compared
+to the stored origin in upper root directory. On failure to verify the
+lower root origin, mount will fail with ESTALE. An overlayfs mount with
+"inodes index" enabled will fail with EOPNOTSUPP if the lower filesystem
+does not support NFS export, lower filesystem does not have a valid UUID or
+if the upper filesystem does not support extended attributes.
+
+It is quite a common practice to copy overlay layers to a different
+directory tree on the same or different underlying filesystem, and even
+to a different machine. With the "inodes index" feature, trying to mount
+the copied layers will fail the verification of the lower root file handle.
+
+
Non-standard behavior
---------------------
diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index 5fb17f49f7a2..93e0a2404532 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -228,7 +228,7 @@ anything from oops to silent memory corruption.
---
[mandatory]
- FS_NOMOUNT is gone. If you use it - just set MS_NOUSER in flags
+ FS_NOMOUNT is gone. If you use it - just set SB_NOUSER in flags
(see rootfs for one kind of solution and bdev/socket/pipe for another).
---
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index 4cddbce85ac9..adba21b5ada7 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -1786,12 +1786,16 @@ pair provide additional information particular to the objects they represent.
pos: 0
flags: 02
mnt_id: 9
- tfd: 5 events: 1d data: ffffffffffffffff
+ tfd: 5 events: 1d data: ffffffffffffffff pos:0 ino:61af sdev:7
where 'tfd' is a target file descriptor number in decimal form,
'events' is events mask being watched and the 'data' is data
associated with a target [see epoll(7) for more details].
+ The 'pos' is current offset of the target file in decimal form
+ [see lseek(2)], 'ino' and 'sdev' are inode and device numbers
+ where target file resides, all in hex format.
+
Fsnotify files
~~~~~~~~~~~~~~
For inotify files the format is the following
diff --git a/Documentation/filesystems/sysfs.txt b/Documentation/filesystems/sysfs.txt
index 24da7b32c489..9a3658cc399e 100644
--- a/Documentation/filesystems/sysfs.txt
+++ b/Documentation/filesystems/sysfs.txt
@@ -366,7 +366,8 @@ struct driver_attribute {
Declaring:
-DRIVER_ATTR(_name, _mode, _show, _store)
+DRIVER_ATTR_RO(_name)
+DRIVER_ATTR_RW(_name)
Creation/Removal:
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index f42b90687d40..5fd325df59e2 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -576,7 +576,43 @@ should clear PG_Dirty and set PG_Writeback. It can be actually
written at any point after PG_Dirty is clear. Once it is known to be
safe, PG_Writeback is cleared.
-Writeback makes use of a writeback_control structure...
+Writeback makes use of a writeback_control structure to direct the
+operations. This gives the the writepage and writepages operations some
+information about the nature of and reason for the writeback request,
+and the constraints under which it is being done. It is also used to
+return information back to the caller about the result of a writepage or
+writepages request.
+
+Handling errors during writeback
+--------------------------------
+Most applications that do buffered I/O will periodically call a file
+synchronization call (fsync, fdatasync, msync or sync_file_range) to
+ensure that data written has made it to the backing store. When there
+is an error during writeback, they expect that error to be reported when
+a file sync request is made. After an error has been reported on one
+request, subsequent requests on the same file descriptor should return
+0, unless further writeback errors have occurred since the previous file
+syncronization.
+
+Ideally, the kernel would report errors only on file descriptions on
+which writes were done that subsequently failed to be written back. The
+generic pagecache infrastructure does not track the file descriptions
+that have dirtied each individual page however, so determining which
+file descriptors should get back an error is not possible.
+
+Instead, the generic writeback error tracking infrastructure in the
+kernel settles for reporting errors to fsync on all file descriptions
+that were open at the time that the error occurred. In a situation with
+multiple writers, all of them will get back an error on a subsequent fsync,
+even if all of the writes done through that particular file descriptor
+succeeded (or even if there were no writes on that file descriptor at all).
+
+Filesystems that wish to use this infrastructure should call
+mapping_set_error to record the error in the address_space when it
+occurs. Then, after writing back data from the pagecache in their
+file->fsync operation, they should call file_check_and_advance_wb_err to
+ensure that the struct file's error cursor has advanced to the correct
+point in the stream of errors emitted by the backing device(s).
struct address_space_operations
-------------------------------
@@ -793,9 +829,7 @@ struct address_space_operations {
swap_activate: Called when swapon is used on a file to allocate
space if necessary and pin the block lookup information in
memory. A return value of zero indicates success,
- in which case this file can be used to back swapspace. The
- swapspace operations will be proxied to this address space's
- ->swap_{out,in} methods.
+ in which case this file can be used to back swapspace.
swap_deactivate: Called during swapoff on files where swap_activate
was successful.
@@ -804,7 +838,8 @@ struct address_space_operations {
The File Object
===============
-A file object represents a file opened by a process.
+A file object represents a file opened by a process. This is also known
+as an "open file description" in POSIX parlance.
struct file_operations
@@ -887,7 +922,8 @@ otherwise noted.
release: called when the last reference to an open file is closed
- fsync: called by the fsync(2) system call
+ fsync: called by the fsync(2) system call. Also see the section above
+ entitled "Handling errors during writeback".
fasync: called by the fcntl(2) system call when asynchronous
(non-blocking) mode is enabled for a file
@@ -952,7 +988,7 @@ struct dentry_operations {
struct vfsmount *(*d_automount)(struct path *);
int (*d_manage)(const struct path *, bool);
struct dentry *(*d_real)(struct dentry *, const struct inode *,
- unsigned int);
+ unsigned int, unsigned int);
};
d_revalidate: called when the VFS needs to revalidate a dentry. This
@@ -1187,12 +1223,6 @@ The underlying reason for the above rules is to make sure, that a
mount can be accurately replicated (e.g. umounting and mounting again)
based on the information found in /proc/mounts.
-A simple method of saving options at mount/remount time and showing
-them is provided with the save_mount_options() and
-generic_show_options() helper functions. Please note, that using
-these may have drawbacks. For more info see header comments for these
-functions in fs/namespace.c.
-
Resources
=========
diff --git a/Documentation/flexible-arrays.txt b/Documentation/flexible-arrays.txt
index df904aec9904..a0f2989dd804 100644
--- a/Documentation/flexible-arrays.txt
+++ b/Documentation/flexible-arrays.txt
@@ -1,6 +1,9 @@
+===================================
Using flexible arrays in the kernel
-Last updated for 2.6.32
-Jonathan Corbet <corbet@lwn.net>
+===================================
+
+:Updated: Last updated for 2.6.32
+:Author: Jonathan Corbet <corbet@lwn.net>
Large contiguous memory allocations can be unreliable in the Linux kernel.
Kernel programmers will sometimes respond to this problem by allocating
@@ -26,7 +29,7 @@ operation. It's also worth noting that flexible arrays do no internal
locking at all; if concurrent access to an array is possible, then the
caller must arrange for appropriate mutual exclusion.
-The creation of a flexible array is done with:
+The creation of a flexible array is done with::
#include <linux/flex_array.h>
@@ -40,14 +43,14 @@ argument is passed directly to the internal memory allocation calls. With
the current code, using flags to ask for high memory is likely to lead to
notably unpleasant side effects.
-It is also possible to define flexible arrays at compile time with:
+It is also possible to define flexible arrays at compile time with::
DEFINE_FLEX_ARRAY(name, element_size, total);
This macro will result in a definition of an array with the given name; the
element size and total will be checked for validity at compile time.
-Storing data into a flexible array is accomplished with a call to:
+Storing data into a flexible array is accomplished with a call to::
int flex_array_put(struct flex_array *array, unsigned int element_nr,
void *src, gfp_t flags);
@@ -63,7 +66,7 @@ running in some sort of atomic context; in this situation, sleeping in the
memory allocator would be a bad thing. That can be avoided by using
GFP_ATOMIC for the flags value, but, often, there is a better way. The
trick is to ensure that any needed memory allocations are done before
-entering atomic context, using:
+entering atomic context, using::
int flex_array_prealloc(struct flex_array *array, unsigned int start,
unsigned int nr_elements, gfp_t flags);
@@ -73,7 +76,7 @@ defined by start and nr_elements has been allocated. Thereafter, a
flex_array_put() call on an element in that range is guaranteed not to
block.
-Getting data back out of the array is done with:
+Getting data back out of the array is done with::
void *flex_array_get(struct flex_array *fa, unsigned int element_nr);
@@ -89,7 +92,7 @@ involving that number probably result from use of unstored array entries.
Note that, if array elements are allocated with __GFP_ZERO, they will be
initialized to zero and this poisoning will not happen.
-Individual elements in the array can be cleared with:
+Individual elements in the array can be cleared with::
int flex_array_clear(struct flex_array *array, unsigned int element_nr);
@@ -97,7 +100,7 @@ This function will set the given element to FLEX_ARRAY_FREE and return
zero. If storage for the indicated element is not allocated for the array,
flex_array_clear() will return -EINVAL instead. Note that clearing an
element does not release the storage associated with it; to reduce the
-allocated size of an array, call:
+allocated size of an array, call::
int flex_array_shrink(struct flex_array *array);
@@ -106,12 +109,12 @@ This function works by scanning the array for pages containing nothing but
FLEX_ARRAY_FREE bytes, so (1) it can be expensive, and (2) it will not work
if the array's pages are allocated with __GFP_ZERO.
-It is possible to remove all elements of an array with a call to:
+It is possible to remove all elements of an array with a call to::
void flex_array_free_parts(struct flex_array *array);
This call frees all elements, but leaves the array itself in place.
-Freeing the entire array is done with:
+Freeing the entire array is done with::
void flex_array_free(struct flex_array *array);
diff --git a/Documentation/futex-requeue-pi.txt b/Documentation/futex-requeue-pi.txt
index 77b36f59d16b..14ab5787b9a7 100644
--- a/Documentation/futex-requeue-pi.txt
+++ b/Documentation/futex-requeue-pi.txt
@@ -1,5 +1,6 @@
+================
Futex Requeue PI
-----------------
+================
Requeueing of tasks from a non-PI futex to a PI futex requires
special handling in order to ensure the underlying rt_mutex is never
@@ -20,28 +21,28 @@ implementation would wake the highest-priority waiter, and leave the
rest to the natural wakeup inherent in unlocking the mutex
associated with the condvar.
-Consider the simplified glibc calls:
-
-/* caller must lock mutex */
-pthread_cond_wait(cond, mutex)
-{
- lock(cond->__data.__lock);
- unlock(mutex);
- do {
- unlock(cond->__data.__lock);
- futex_wait(cond->__data.__futex);
- lock(cond->__data.__lock);
- } while(...)
- unlock(cond->__data.__lock);
- lock(mutex);
-}
-
-pthread_cond_broadcast(cond)
-{
- lock(cond->__data.__lock);
- unlock(cond->__data.__lock);
- futex_requeue(cond->data.__futex, cond->mutex);
-}
+Consider the simplified glibc calls::
+
+ /* caller must lock mutex */
+ pthread_cond_wait(cond, mutex)
+ {
+ lock(cond->__data.__lock);
+ unlock(mutex);
+ do {
+ unlock(cond->__data.__lock);
+ futex_wait(cond->__data.__futex);
+ lock(cond->__data.__lock);
+ } while(...)
+ unlock(cond->__data.__lock);
+ lock(mutex);
+ }
+
+ pthread_cond_broadcast(cond)
+ {
+ lock(cond->__data.__lock);
+ unlock(cond->__data.__lock);
+ futex_requeue(cond->data.__futex, cond->mutex);
+ }
Once pthread_cond_broadcast() requeues the tasks, the cond->mutex
has waiters. Note that pthread_cond_wait() attempts to lock the
@@ -53,29 +54,29 @@ In order to support PI-aware pthread_condvar's, the kernel needs to
be able to requeue tasks to PI futexes. This support implies that
upon a successful futex_wait system call, the caller would return to
user space already holding the PI futex. The glibc implementation
-would be modified as follows:
-
-
-/* caller must lock mutex */
-pthread_cond_wait_pi(cond, mutex)
-{
- lock(cond->__data.__lock);
- unlock(mutex);
- do {
- unlock(cond->__data.__lock);
- futex_wait_requeue_pi(cond->__data.__futex);
- lock(cond->__data.__lock);
- } while(...)
- unlock(cond->__data.__lock);
- /* the kernel acquired the mutex for us */
-}
-
-pthread_cond_broadcast_pi(cond)
-{
- lock(cond->__data.__lock);
- unlock(cond->__data.__lock);
- futex_requeue_pi(cond->data.__futex, cond->mutex);
-}
+would be modified as follows::
+
+
+ /* caller must lock mutex */
+ pthread_cond_wait_pi(cond, mutex)
+ {
+ lock(cond->__data.__lock);
+ unlock(mutex);
+ do {
+ unlock(cond->__data.__lock);
+ futex_wait_requeue_pi(cond->__data.__futex);
+ lock(cond->__data.__lock);
+ } while(...)
+ unlock(cond->__data.__lock);
+ /* the kernel acquired the mutex for us */
+ }
+
+ pthread_cond_broadcast_pi(cond)
+ {
+ lock(cond->__data.__lock);
+ unlock(cond->__data.__lock);
+ futex_requeue_pi(cond->data.__futex, cond->mutex);
+ }
The actual glibc implementation will likely test for PI and make the
necessary changes inside the existing calls rather than creating new
diff --git a/Documentation/gcc-plugins.txt b/Documentation/gcc-plugins.txt
index 433eaefb4aa1..8502f24396fb 100644
--- a/Documentation/gcc-plugins.txt
+++ b/Documentation/gcc-plugins.txt
@@ -1,14 +1,15 @@
+=========================
GCC plugin infrastructure
=========================
-1. Introduction
-===============
+Introduction
+============
GCC plugins are loadable modules that provide extra features to the
-compiler [1]. They are useful for runtime instrumentation and static analysis.
+compiler [1]_. They are useful for runtime instrumentation and static analysis.
We can analyse, change and add further code during compilation via
-callbacks [2], GIMPLE [3], IPA [4] and RTL passes [5].
+callbacks [2]_, GIMPLE [3]_, IPA [4]_ and RTL passes [5]_.
The GCC plugin infrastructure of the kernel supports all gcc versions from
4.5 to 6.0, building out-of-tree modules, cross-compilation and building in a
@@ -21,56 +22,61 @@ and versions 4.8+ can only be compiled by a C++ compiler.
Currently the GCC plugin infrastructure supports only the x86, arm, arm64 and
powerpc architectures.
-This infrastructure was ported from grsecurity [6] and PaX [7].
+This infrastructure was ported from grsecurity [6]_ and PaX [7]_.
--
-[1] https://gcc.gnu.org/onlinedocs/gccint/Plugins.html
-[2] https://gcc.gnu.org/onlinedocs/gccint/Plugin-API.html#Plugin-API
-[3] https://gcc.gnu.org/onlinedocs/gccint/GIMPLE.html
-[4] https://gcc.gnu.org/onlinedocs/gccint/IPA.html
-[5] https://gcc.gnu.org/onlinedocs/gccint/RTL.html
-[6] https://grsecurity.net/
-[7] https://pax.grsecurity.net/
+.. [1] https://gcc.gnu.org/onlinedocs/gccint/Plugins.html
+.. [2] https://gcc.gnu.org/onlinedocs/gccint/Plugin-API.html#Plugin-API
+.. [3] https://gcc.gnu.org/onlinedocs/gccint/GIMPLE.html
+.. [4] https://gcc.gnu.org/onlinedocs/gccint/IPA.html
+.. [5] https://gcc.gnu.org/onlinedocs/gccint/RTL.html
+.. [6] https://grsecurity.net/
+.. [7] https://pax.grsecurity.net/
+
+
+Files
+=====
-2. Files
-========
+**$(src)/scripts/gcc-plugins**
-$(src)/scripts/gcc-plugins
This is the directory of the GCC plugins.
-$(src)/scripts/gcc-plugins/gcc-common.h
+**$(src)/scripts/gcc-plugins/gcc-common.h**
+
This is a compatibility header for GCC plugins.
It should be always included instead of individual gcc headers.
-$(src)/scripts/gcc-plugin.sh
+**$(src)/scripts/gcc-plugin.sh**
+
This script checks the availability of the included headers in
gcc-common.h and chooses the proper host compiler to build the plugins
(gcc-4.7 can be built by either gcc or g++).
-$(src)/scripts/gcc-plugins/gcc-generate-gimple-pass.h
-$(src)/scripts/gcc-plugins/gcc-generate-ipa-pass.h
-$(src)/scripts/gcc-plugins/gcc-generate-simple_ipa-pass.h
-$(src)/scripts/gcc-plugins/gcc-generate-rtl-pass.h
+**$(src)/scripts/gcc-plugins/gcc-generate-gimple-pass.h,
+$(src)/scripts/gcc-plugins/gcc-generate-ipa-pass.h,
+$(src)/scripts/gcc-plugins/gcc-generate-simple_ipa-pass.h,
+$(src)/scripts/gcc-plugins/gcc-generate-rtl-pass.h**
+
These headers automatically generate the registration structures for
GIMPLE, SIMPLE_IPA, IPA and RTL passes. They support all gcc versions
from 4.5 to 6.0.
They should be preferred to creating the structures by hand.
-3. Usage
-========
+Usage
+=====
You must install the gcc plugin headers for your gcc version,
-e.g., on Ubuntu for gcc-4.9:
+e.g., on Ubuntu for gcc-4.9::
apt-get install gcc-4.9-plugin-dev
-Enable a GCC plugin based feature in the kernel config:
+Enable a GCC plugin based feature in the kernel config::
CONFIG_GCC_PLUGIN_CYC_COMPLEXITY = y
-To compile only the plugin(s):
+To compile only the plugin(s)::
make gcc-plugins
diff --git a/Documentation/gpio/gpio-legacy.txt b/Documentation/gpio/gpio-legacy.txt
index b34fd94f7089..5eacc147ea87 100644
--- a/Documentation/gpio/gpio-legacy.txt
+++ b/Documentation/gpio/gpio-legacy.txt
@@ -459,7 +459,7 @@ pin controller?
This is done by registering "ranges" of pins, which are essentially
cross-reference tables. These are described in
-Documentation/pinctrl.txt
+Documentation/driver-api/pinctl.rst
While the pin allocation is totally managed by the pinctrl subsystem,
gpio (under gpiolib) is still maintained by gpio drivers. It may happen
diff --git a/Documentation/gpu/drm-internals.rst b/Documentation/gpu/drm-internals.rst
index babfb6143bd9..5ee9674fb9e9 100644
--- a/Documentation/gpu/drm-internals.rst
+++ b/Documentation/gpu/drm-internals.rst
@@ -98,6 +98,9 @@ DRIVER_ATOMIC
implement appropriate obj->atomic_get_property() vfuncs for any
modeset objects with driver specific properties.
+DRIVER_SYNCOBJ
+ Driver support drm sync objects.
+
Major, Minor and Patchlevel
~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -149,60 +152,15 @@ Device Instance and Driver Handling
Driver Load
-----------
-IRQ Registration
-~~~~~~~~~~~~~~~~
-
-The DRM core tries to facilitate IRQ handler registration and
-unregistration by providing :c:func:`drm_irq_install()` and
-:c:func:`drm_irq_uninstall()` functions. Those functions only
-support a single interrupt per device, devices that use more than one
-IRQs need to be handled manually.
-
-Managed IRQ Registration
-''''''''''''''''''''''''
-
-:c:func:`drm_irq_install()` starts by calling the irq_preinstall
-driver operation. The operation is optional and must make sure that the
-interrupt will not get fired by clearing all pending interrupt flags or
-disabling the interrupt.
-
-The passed-in IRQ will then be requested by a call to
-:c:func:`request_irq()`. If the DRIVER_IRQ_SHARED driver feature
-flag is set, a shared (IRQF_SHARED) IRQ handler will be requested.
-
-The IRQ handler function must be provided as the mandatory irq_handler
-driver operation. It will get passed directly to
-:c:func:`request_irq()` and thus has the same prototype as all IRQ
-handlers. It will get called with a pointer to the DRM device as the
-second argument.
-
-Finally the function calls the optional irq_postinstall driver
-operation. The operation usually enables interrupts (excluding the
-vblank interrupt, which is enabled separately), but drivers may choose
-to enable/disable interrupts at a different time.
-
-:c:func:`drm_irq_uninstall()` is similarly used to uninstall an
-IRQ handler. It starts by waking up all processes waiting on a vblank
-interrupt to make sure they don't hang, and then calls the optional
-irq_uninstall driver operation. The operation must disable all hardware
-interrupts. Finally the function frees the IRQ by calling
-:c:func:`free_irq()`.
-
-Manual IRQ Registration
-'''''''''''''''''''''''
-
-Drivers that require multiple interrupt handlers can't use the managed
-IRQ registration functions. In that case IRQs must be registered and
-unregistered manually (usually with the :c:func:`request_irq()` and
-:c:func:`free_irq()` functions, or their :c:func:`devm_request_irq()` and
-:c:func:`devm_free_irq()` equivalents).
-
-When manually registering IRQs, drivers must not set the
-DRIVER_HAVE_IRQ driver feature flag, and must not provide the
-irq_handler driver operation. They must set the :c:type:`struct
-drm_device <drm_device>` irq_enabled field to 1 upon
-registration of the IRQs, and clear it to 0 after unregistering the
-IRQs.
+
+IRQ Helper Library
+~~~~~~~~~~~~~~~~~~
+
+.. kernel-doc:: drivers/gpu/drm/drm_irq.c
+ :doc: irq helpers
+
+.. kernel-doc:: drivers/gpu/drm/drm_irq.c
+ :export:
Memory Manager Initialization
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -243,6 +201,8 @@ drivers.
Open/Close, File Operations and IOCTLs
======================================
+.. _drm_driver_fops:
+
File Operations
---------------
diff --git a/Documentation/gpu/drm-kms-helpers.rst b/Documentation/gpu/drm-kms-helpers.rst
index c075aadd7078..13dd237418cc 100644
--- a/Documentation/gpu/drm-kms-helpers.rst
+++ b/Documentation/gpu/drm-kms-helpers.rst
@@ -143,6 +143,12 @@ Bridge Helper Reference
.. kernel-doc:: drivers/gpu/drm/drm_bridge.c
:export:
+Panel-Bridge Helper Reference
+-----------------------------
+
+.. kernel-doc:: drivers/gpu/drm/bridge/panel.c
+ :export:
+
.. _drm_panel_helper:
Panel Helper Reference
@@ -290,3 +296,12 @@ Auxiliary Modeset Helpers
.. kernel-doc:: drivers/gpu/drm/drm_modeset_helper.c
:export:
+
+Framebuffer GEM Helper Reference
+================================
+
+.. kernel-doc:: drivers/gpu/drm/drm_gem_framebuffer_helper.c
+ :doc: overview
+
+.. kernel-doc:: drivers/gpu/drm/drm_gem_framebuffer_helper.c
+ :export:
diff --git a/Documentation/gpu/drm-kms.rst b/Documentation/gpu/drm-kms.rst
index bfecd21a8cdf..307284125d7a 100644
--- a/Documentation/gpu/drm-kms.rst
+++ b/Documentation/gpu/drm-kms.rst
@@ -523,9 +523,6 @@ Color Management Properties
.. kernel-doc:: drivers/gpu/drm/drm_color_mgmt.c
:doc: overview
-.. kernel-doc:: include/drm/drm_color_mgmt.h
- :internal:
-
.. kernel-doc:: drivers/gpu/drm/drm_color_mgmt.c
:export:
@@ -554,66 +551,14 @@ various modules/drivers.
Vertical Blanking
=================
-Vertical blanking plays a major role in graphics rendering. To achieve
-tear-free display, users must synchronize page flips and/or rendering to
-vertical blanking. The DRM API offers ioctls to perform page flips
-synchronized to vertical blanking and wait for vertical blanking.
-
-The DRM core handles most of the vertical blanking management logic,
-which involves filtering out spurious interrupts, keeping race-free
-blanking counters, coping with counter wrap-around and resets and
-keeping use counts. It relies on the driver to generate vertical
-blanking interrupts and optionally provide a hardware vertical blanking
-counter. Drivers must implement the following operations.
-
-- int (\*enable_vblank) (struct drm_device \*dev, int crtc); void
- (\*disable_vblank) (struct drm_device \*dev, int crtc);
- Enable or disable vertical blanking interrupts for the given CRTC.
-
-- u32 (\*get_vblank_counter) (struct drm_device \*dev, int crtc);
- Retrieve the value of the vertical blanking counter for the given
- CRTC. If the hardware maintains a vertical blanking counter its value
- should be returned. Otherwise drivers can use the
- :c:func:`drm_vblank_count()` helper function to handle this
- operation.
-
-Drivers must initialize the vertical blanking handling core with a call
-to :c:func:`drm_vblank_init()` in their load operation.
-
-Vertical blanking interrupts can be enabled by the DRM core or by
-drivers themselves (for instance to handle page flipping operations).
-The DRM core maintains a vertical blanking use count to ensure that the
-interrupts are not disabled while a user still needs them. To increment
-the use count, drivers call :c:func:`drm_vblank_get()`. Upon
-return vertical blanking interrupts are guaranteed to be enabled.
-
-To decrement the use count drivers call
-:c:func:`drm_vblank_put()`. Only when the use count drops to zero
-will the DRM core disable the vertical blanking interrupts after a delay
-by scheduling a timer. The delay is accessible through the
-vblankoffdelay module parameter or the ``drm_vblank_offdelay`` global
-variable and expressed in milliseconds. Its default value is 5000 ms.
-Zero means never disable, and a negative value means disable
-immediately. Drivers may override the behaviour by setting the
-:c:type:`struct drm_device <drm_device>`
-vblank_disable_immediate flag, which when set causes vblank interrupts
-to be disabled immediately regardless of the drm_vblank_offdelay
-value. The flag should only be set if there's a properly working
-hardware vblank counter present.
-
-When a vertical blanking interrupt occurs drivers only need to call the
-:c:func:`drm_handle_vblank()` function to account for the
-interrupt.
-
-Resources allocated by :c:func:`drm_vblank_init()` must be freed
-with a call to :c:func:`drm_vblank_cleanup()` in the driver unload
-operation handler.
+.. kernel-doc:: drivers/gpu/drm/drm_vblank.c
+ :doc: vblank handling
Vertical Blanking and Interrupt Handling Functions Reference
------------------------------------------------------------
-.. kernel-doc:: include/drm/drm_irq.h
+.. kernel-doc:: include/drm/drm_vblank.h
:internal:
-.. kernel-doc:: drivers/gpu/drm/drm_irq.c
+.. kernel-doc:: drivers/gpu/drm/drm_vblank.c
:export:
diff --git a/Documentation/gpu/drm-mm.rst b/Documentation/gpu/drm-mm.rst
index 96b9c34c21e4..b08e9dcd9177 100644
--- a/Documentation/gpu/drm-mm.rst
+++ b/Documentation/gpu/drm-mm.rst
@@ -191,7 +191,7 @@ acquired and release by :c:func:`calling drm_gem_object_get()` and
holding the lock.
When the last reference to a GEM object is released the GEM core calls
-the :c:type:`struct drm_driver <drm_driver>` gem_free_object
+the :c:type:`struct drm_driver <drm_driver>` gem_free_object_unlocked
operation. That operation is mandatory for GEM-enabled drivers and must
free the GEM object and all associated resources.
@@ -484,3 +484,15 @@ DRM Cache Handling
.. kernel-doc:: drivers/gpu/drm/drm_cache.c
:export:
+
+DRM Sync Objects
+===========================
+
+.. kernel-doc:: drivers/gpu/drm/drm_syncobj.c
+ :doc: Overview
+
+.. kernel-doc:: include/drm/drm_syncobj.h
+ :internal:
+
+.. kernel-doc:: drivers/gpu/drm/drm_syncobj.c
+ :export:
diff --git a/Documentation/gpu/drm-uapi.rst b/Documentation/gpu/drm-uapi.rst
index 858457567d3d..679373b4a03f 100644
--- a/Documentation/gpu/drm-uapi.rst
+++ b/Documentation/gpu/drm-uapi.rst
@@ -160,6 +160,8 @@ other hand, a driver requires shared state between clients which is
visible to user-space and accessible beyond open-file boundaries, they
cannot support render nodes.
+.. _drm_driver_ioctl:
+
IOCTL Support on Device Nodes
=============================
diff --git a/Documentation/gpu/i915.rst b/Documentation/gpu/i915.rst
index 9c7ed3e3f1e9..2e7ee0313c1c 100644
--- a/Documentation/gpu/i915.rst
+++ b/Documentation/gpu/i915.rst
@@ -417,6 +417,10 @@ integrate with drm/i915 and to handle the `DRM_I915_PERF_OPEN` ioctl.
:functions: i915_perf_open_ioctl
.. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c
:functions: i915_perf_release
+.. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c
+ :functions: i915_perf_add_config_ioctl
+.. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c
+ :functions: i915_perf_remove_config_ioctl
i915 Perf Stream
----------------
@@ -477,4 +481,16 @@ specific details than found in the more high-level sections.
.. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c
:internal:
-.. WARNING: DOCPROC directive not supported: !Cdrivers/gpu/drm/i915/i915_irq.c
+Style
+=====
+
+The drm/i915 driver codebase has some style rules in addition to (and, in some
+cases, deviating from) the kernel coding style.
+
+Register macro definition style
+-------------------------------
+
+The style guide for ``i915_reg.h``.
+
+.. kernel-doc:: drivers/gpu/drm/i915/i915_reg.h
+ :doc: The i915 register macro definition style guide
diff --git a/Documentation/gpu/index.rst b/Documentation/gpu/index.rst
index c572f092739e..35d673bf9b56 100644
--- a/Documentation/gpu/index.rst
+++ b/Documentation/gpu/index.rst
@@ -12,6 +12,8 @@ Linux GPU Driver Developer's Guide
drm-uapi
i915
meson
+ pl111
+ tegra
tinydrm
vc4
vga-switcheroo
diff --git a/Documentation/gpu/pl111.rst b/Documentation/gpu/pl111.rst
new file mode 100644
index 000000000000..9b03736d33dd
--- /dev/null
+++ b/Documentation/gpu/pl111.rst
@@ -0,0 +1,6 @@
+==========================================
+ drm/pl111 ARM PrimeCell PL111 CLCD Driver
+==========================================
+
+.. kernel-doc:: drivers/gpu/drm/pl111/pl111_drv.c
+ :doc: ARM PrimeCell PL111 CLCD Driver
diff --git a/Documentation/gpu/tegra.rst b/Documentation/gpu/tegra.rst
new file mode 100644
index 000000000000..d2ed8938ca43
--- /dev/null
+++ b/Documentation/gpu/tegra.rst
@@ -0,0 +1,178 @@
+===============================================
+ drm/tegra NVIDIA Tegra GPU and display driver
+===============================================
+
+NVIDIA Tegra SoCs support a set of display, graphics and video functions via
+the host1x controller. host1x supplies command streams, gathered from a push
+buffer provided directly by the CPU, to its clients via channels. Software,
+or blocks amongst themselves, can use syncpoints for synchronization.
+
+Up until, but not including, Tegra124 (aka Tegra K1) the drm/tegra driver
+supports the built-in GPU, comprised of the gr2d and gr3d engines. Starting
+with Tegra124 the GPU is based on the NVIDIA desktop GPU architecture and
+supported by the drm/nouveau driver.
+
+The drm/tegra driver supports NVIDIA Tegra SoC generations since Tegra20. It
+has three parts:
+
+ - A host1x driver that provides infrastructure and access to the host1x
+ services.
+
+ - A KMS driver that supports the display controllers as well as a number of
+ outputs, such as RGB, HDMI, DSI, and DisplayPort.
+
+ - A set of custom userspace IOCTLs that can be used to submit jobs to the
+ GPU and video engines via host1x.
+
+Driver Infrastructure
+=====================
+
+The various host1x clients need to be bound together into a logical device in
+order to expose their functionality to users. The infrastructure that supports
+this is implemented in the host1x driver. When a driver is registered with the
+infrastructure it provides a list of compatible strings specifying the devices
+that it needs. The infrastructure creates a logical device and scan the device
+tree for matching device nodes, adding the required clients to a list. Drivers
+for individual clients register with the infrastructure as well and are added
+to the logical host1x device.
+
+Once all clients are available, the infrastructure will initialize the logical
+device using a driver-provided function which will set up the bits specific to
+the subsystem and in turn initialize each of its clients.
+
+Similarly, when one of the clients is unregistered, the infrastructure will
+destroy the logical device by calling back into the driver, which ensures that
+the subsystem specific bits are torn down and the clients destroyed in turn.
+
+Host1x Infrastructure Reference
+-------------------------------
+
+.. kernel-doc:: include/linux/host1x.h
+
+.. kernel-doc:: drivers/gpu/host1x/bus.c
+ :export:
+
+Host1x Syncpoint Reference
+--------------------------
+
+.. kernel-doc:: drivers/gpu/host1x/syncpt.c
+ :export:
+
+KMS driver
+==========
+
+The display hardware has remained mostly backwards compatible over the various
+Tegra SoC generations, up until Tegra186 which introduces several changes that
+make it difficult to support with a parameterized driver.
+
+Display Controllers
+-------------------
+
+Tegra SoCs have two display controllers, each of which can be associated with
+zero or more outputs. Outputs can also share a single display controller, but
+only if they run with compatible display timings. Two display controllers can
+also share a single framebuffer, allowing cloned configurations even if modes
+on two outputs don't match. A display controller is modelled as a CRTC in KMS
+terms.
+
+On Tegra186, the number of display controllers has been increased to three. A
+display controller can no longer drive all of the outputs. While two of these
+controllers can drive both DSI outputs and both SOR outputs, the third cannot
+drive any DSI.
+
+Windows
+~~~~~~~
+
+A display controller controls a set of windows that can be used to composite
+multiple buffers onto the screen. While it is possible to assign arbitrary Z
+ordering to individual windows (by programming the corresponding blending
+registers), this is currently not supported by the driver. Instead, it will
+assume a fixed Z ordering of the windows (window A is the root window, that
+is, the lowest, while windows B and C are overlaid on top of window A). The
+overlay windows support multiple pixel formats and can automatically convert
+from YUV to RGB at scanout time. This makes them useful for displaying video
+content. In KMS, each window is modelled as a plane. Each display controller
+has a hardware cursor that is exposed as a cursor plane.
+
+Outputs
+-------
+
+The type and number of supported outputs varies between Tegra SoC generations.
+All generations support at least HDMI. While earlier generations supported the
+very simple RGB interfaces (one per display controller), recent generations no
+longer do and instead provide standard interfaces such as DSI and eDP/DP.
+
+Outputs are modelled as a composite encoder/connector pair.
+
+RGB/LVDS
+~~~~~~~~
+
+This interface is no longer available since Tegra124. It has been replaced by
+the more standard DSI and eDP interfaces.
+
+HDMI
+~~~~
+
+HDMI is supported on all Tegra SoCs. Starting with Tegra210, HDMI is provided
+by the versatile SOR output, which supports eDP, DP and HDMI. The SOR is able
+to support HDMI 2.0, though support for this is currently not merged.
+
+DSI
+~~~
+
+Although Tegra has supported DSI since Tegra30, the controller has changed in
+several ways in Tegra114. Since none of the publicly available development
+boards prior to Dalmore (Tegra114) have made use of DSI, only Tegra114 and
+later are supported by the drm/tegra driver.
+
+eDP/DP
+~~~~~~
+
+eDP was first introduced in Tegra124 where it was used to drive the display
+panel for notebook form factors. Tegra210 added support for full DisplayPort
+support, though this is currently not implemented in the drm/tegra driver.
+
+Userspace Interface
+===================
+
+The userspace interface provided by drm/tegra allows applications to create
+GEM buffers, access and control syncpoints as well as submit command streams
+to host1x.
+
+GEM Buffers
+-----------
+
+The ``DRM_IOCTL_TEGRA_GEM_CREATE`` IOCTL is used to create a GEM buffer object
+with Tegra-specific flags. This is useful for buffers that should be tiled, or
+that are to be scanned out upside down (useful for 3D content).
+
+After a GEM buffer object has been created, its memory can be mapped by an
+application using the mmap offset returned by the ``DRM_IOCTL_TEGRA_GEM_MMAP``
+IOCTL.
+
+Syncpoints
+----------
+
+The current value of a syncpoint can be obtained by executing the
+``DRM_IOCTL_TEGRA_SYNCPT_READ`` IOCTL. Incrementing the syncpoint is achieved
+using the ``DRM_IOCTL_TEGRA_SYNCPT_INCR`` IOCTL.
+
+Userspace can also request blocking on a syncpoint. To do so, it needs to
+execute the ``DRM_IOCTL_TEGRA_SYNCPT_WAIT`` IOCTL, specifying the value of
+the syncpoint to wait for. The kernel will release the application when the
+syncpoint reaches that value or after a specified timeout.
+
+Command Stream Submission
+-------------------------
+
+Before an application can submit command streams to host1x it needs to open a
+channel to an engine using the ``DRM_IOCTL_TEGRA_OPEN_CHANNEL`` IOCTL. Client
+IDs are used to identify the target of the channel. When a channel is no
+longer needed, it can be closed using the ``DRM_IOCTL_TEGRA_CLOSE_CHANNEL``
+IOCTL. To retrieve the syncpoint associated with a channel, an application
+can use the ``DRM_IOCTL_TEGRA_GET_SYNCPT``.
+
+After opening a channel, submitting command streams is easy. The application
+writes commands into the memory backing a GEM buffer object and passes these
+to the ``DRM_IOCTL_TEGRA_SUBMIT`` IOCTL along with various other parameters,
+such as the syncpoints or relocations used in the job submission.
diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
index 1bdb7356a310..22af55d06ab8 100644
--- a/Documentation/gpu/todo.rst
+++ b/Documentation/gpu/todo.rst
@@ -108,8 +108,8 @@ This would be especially useful for tinydrm:
crtc state, clear that to the max values, x/y = 0 and w/h = MAX_INT, in
__drm_atomic_helper_crtc_duplicate_state().
-- Move tinydrm_merge_clips into drm_framebuffer.c, dropping the tinydrm_
- prefix ofc and using drm_fb_. drm_framebuffer.c makes sense since this
+- Move tinydrm_merge_clips into drm_framebuffer.c, dropping the tinydrm\_
+ prefix ofc and using drm_fb\_. drm_framebuffer.c makes sense since this
is a function useful to implement the fb->dirty function.
- Create a new drm_fb_dirty function which does essentially what e.g.
@@ -177,19 +177,6 @@ following drivers still use ``struct_mutex``: ``msm``, ``omapdrm`` and
Contact: Daniel Vetter, respective driver maintainers
-Switch to drm_connector_list_iter for any connector_list walking
-----------------------------------------------------------------
-
-Connectors can be hotplugged, and we now have a special list of helpers to walk
-the connector_list in a race-free fashion, without incurring deadlocks on
-mutexes and other fun stuff.
-
-Unfortunately most drivers are not converted yet. At least all those supporting
-DP MST hotplug should be converted, since for those drivers the difference
-matters. See drm_for_each_connector_iter() vs. drm_for_each_connector().
-
-Contact: Daniel Vetter
-
Core refactorings
=================
@@ -228,7 +215,7 @@ The DRM reference documentation is still lacking kerneldoc in a few areas. The
task would be to clean up interfaces like moving functions around between
files to better group them and improving the interfaces like dropping return
values for functions that never fail. Then write kerneldoc for all exported
-functions and an overview section and integrate it all into the drm DocBook.
+functions and an overview section and integrate it all into the drm book.
See https://dri.freedesktop.org/docs/drm/ for what's there already.
diff --git a/Documentation/highuid.txt b/Documentation/highuid.txt
index 6bad6f1d1cac..6ee70465c0ea 100644
--- a/Documentation/highuid.txt
+++ b/Documentation/highuid.txt
@@ -1,4 +1,9 @@
-Notes on the change from 16-bit UIDs to 32-bit UIDs:
+===================================================
+Notes on the change from 16-bit UIDs to 32-bit UIDs
+===================================================
+
+:Author: Chris Wing <wingc@umich.edu>
+:Last updated: January 11, 2000
- kernel code MUST take into account __kernel_uid_t and __kernel_uid32_t
when communicating between user and kernel space in an ioctl or data
@@ -28,30 +33,34 @@ What's left to be done for 32-bit UIDs on all Linux architectures:
uses the 32-bit UID system calls properly otherwise.
This affects at least:
- iBCS on Intel
- sparc32 emulation on sparc64
- (need to support whatever new 32-bit UID system calls are added to
- sparc32)
+ - iBCS on Intel
+
+ - sparc32 emulation on sparc64
+ (need to support whatever new 32-bit UID system calls are added to
+ sparc32)
- Validate that all filesystems behave properly.
At present, 32-bit UIDs _should_ work for:
- ext2
- ufs
- isofs
- nfs
- coda
- udf
+
+ - ext2
+ - ufs
+ - isofs
+ - nfs
+ - coda
+ - udf
Ioctl() fixups have been made for:
- ncpfs
- smbfs
+
+ - ncpfs
+ - smbfs
Filesystems with simple fixups to prevent 16-bit UID wraparound:
- minix
- sysv
- qnx4
+
+ - minix
+ - sysv
+ - qnx4
Other filesystems have not been checked yet.
@@ -69,9 +78,3 @@ What's left to be done for 32-bit UIDs on all Linux architectures:
- make sure that the UID mapping feature of AX25 networking works properly
(it should be safe because it's always used a 32-bit integer to
communicate between user and kernel)
-
-
-Chris Wing
-wingc@umich.edu
-
-last updated: January 11, 2000
diff --git a/Documentation/hw_random.txt b/Documentation/hw_random.txt
index fce1634907d0..121de96e395e 100644
--- a/Documentation/hw_random.txt
+++ b/Documentation/hw_random.txt
@@ -1,90 +1,105 @@
-Introduction:
-
- The hw_random framework is software that makes use of a
- special hardware feature on your CPU or motherboard,
- a Random Number Generator (RNG). The software has two parts:
- a core providing the /dev/hwrng character device and its
- sysfs support, plus a hardware-specific driver that plugs
- into that core.
-
- To make the most effective use of these mechanisms, you
- should download the support software as well. Download the
- latest version of the "rng-tools" package from the
- hw_random driver's official Web site:
-
- http://sourceforge.net/projects/gkernel/
-
- Those tools use /dev/hwrng to fill the kernel entropy pool,
- which is used internally and exported by the /dev/urandom and
- /dev/random special files.
-
-Theory of operation:
-
- CHARACTER DEVICE. Using the standard open()
- and read() system calls, you can read random data from
- the hardware RNG device. This data is NOT CHECKED by any
- fitness tests, and could potentially be bogus (if the
- hardware is faulty or has been tampered with). Data is only
- output if the hardware "has-data" flag is set, but nevertheless
- a security-conscious person would run fitness tests on the
- data before assuming it is truly random.
-
- The rng-tools package uses such tests in "rngd", and lets you
- run them by hand with a "rngtest" utility.
-
- /dev/hwrng is char device major 10, minor 183.
-
- CLASS DEVICE. There is a /sys/class/misc/hw_random node with
- two unique attributes, "rng_available" and "rng_current". The
- "rng_available" attribute lists the hardware-specific drivers
- available, while "rng_current" lists the one which is currently
- connected to /dev/hwrng. If your system has more than one
- RNG available, you may change the one used by writing a name from
- the list in "rng_available" into "rng_current".
+==========================================================
+Linux support for random number generator in i8xx chipsets
+==========================================================
+
+Introduction
+============
+
+The hw_random framework is software that makes use of a
+special hardware feature on your CPU or motherboard,
+a Random Number Generator (RNG). The software has two parts:
+a core providing the /dev/hwrng character device and its
+sysfs support, plus a hardware-specific driver that plugs
+into that core.
+
+To make the most effective use of these mechanisms, you
+should download the support software as well. Download the
+latest version of the "rng-tools" package from the
+hw_random driver's official Web site:
+
+ http://sourceforge.net/projects/gkernel/
+
+Those tools use /dev/hwrng to fill the kernel entropy pool,
+which is used internally and exported by the /dev/urandom and
+/dev/random special files.
+
+Theory of operation
+===================
+
+CHARACTER DEVICE. Using the standard open()
+and read() system calls, you can read random data from
+the hardware RNG device. This data is NOT CHECKED by any
+fitness tests, and could potentially be bogus (if the
+hardware is faulty or has been tampered with). Data is only
+output if the hardware "has-data" flag is set, but nevertheless
+a security-conscious person would run fitness tests on the
+data before assuming it is truly random.
+
+The rng-tools package uses such tests in "rngd", and lets you
+run them by hand with a "rngtest" utility.
+
+/dev/hwrng is char device major 10, minor 183.
+
+CLASS DEVICE. There is a /sys/class/misc/hw_random node with
+two unique attributes, "rng_available" and "rng_current". The
+"rng_available" attribute lists the hardware-specific drivers
+available, while "rng_current" lists the one which is currently
+connected to /dev/hwrng. If your system has more than one
+RNG available, you may change the one used by writing a name from
+the list in "rng_available" into "rng_current".
==========================================================================
- Hardware driver for Intel/AMD/VIA Random Number Generators (RNG)
- Copyright 2000,2001 Jeff Garzik <jgarzik@pobox.com>
- Copyright 2000,2001 Philipp Rumpf <prumpf@mandrakesoft.com>
+Hardware driver for Intel/AMD/VIA Random Number Generators (RNG)
+ - Copyright 2000,2001 Jeff Garzik <jgarzik@pobox.com>
+ - Copyright 2000,2001 Philipp Rumpf <prumpf@mandrakesoft.com>
-About the Intel RNG hardware, from the firmware hub datasheet:
- The Firmware Hub integrates a Random Number Generator (RNG)
- using thermal noise generated from inherently random quantum
- mechanical properties of silicon. When not generating new random
- bits the RNG circuitry will enter a low power state. Intel will
- provide a binary software driver to give third party software
- access to our RNG for use as a security feature. At this time,
- the RNG is only to be used with a system in an OS-present state.
+About the Intel RNG hardware, from the firmware hub datasheet
+=============================================================
-Intel RNG Driver notes:
+The Firmware Hub integrates a Random Number Generator (RNG)
+using thermal noise generated from inherently random quantum
+mechanical properties of silicon. When not generating new random
+bits the RNG circuitry will enter a low power state. Intel will
+provide a binary software driver to give third party software
+access to our RNG for use as a security feature. At this time,
+the RNG is only to be used with a system in an OS-present state.
- * FIXME: support poll(2)
+Intel RNG Driver notes
+======================
- NOTE: request_mem_region was removed, for three reasons:
- 1) Only one RNG is supported by this driver, 2) The location
- used by the RNG is a fixed location in MMIO-addressable memory,
+FIXME: support poll(2)
+
+.. note::
+
+ request_mem_region was removed, for three reasons:
+
+ 1) Only one RNG is supported by this driver;
+ 2) The location used by the RNG is a fixed location in
+ MMIO-addressable memory;
3) users with properly working BIOS e820 handling will always
- have the region in which the RNG is located reserved, so
- request_mem_region calls always fail for proper setups.
- However, for people who use mem=XX, BIOS e820 information is
- -not- in /proc/iomem, and request_mem_region(RNG_ADDR) can
- succeed.
+ have the region in which the RNG is located reserved, so
+ request_mem_region calls always fail for proper setups.
+ However, for people who use mem=XX, BIOS e820 information is
+ **not** in /proc/iomem, and request_mem_region(RNG_ADDR) can
+ succeed.
-Driver details:
+Driver details
+==============
- Based on:
+Based on:
Intel 82802AB/82802AC Firmware Hub (FWH) Datasheet
- May 1999 Order Number: 290658-002 R
+ May 1999 Order Number: 290658-002 R
- Intel 82802 Firmware Hub: Random Number Generator
+Intel 82802 Firmware Hub:
+ Random Number Generator
Programmer's Reference Manual
- December 1999 Order Number: 298029-001 R
+ December 1999 Order Number: 298029-001 R
- Intel 82802 Firmware HUB Random Number Generator Driver
+Intel 82802 Firmware HUB Random Number Generator Driver
Copyright (c) 2000 Matt Sottek <msottek@quiknet.com>
- Special thanks to Matt Sottek. I did the "guts", he
- did the "brains" and all the testing.
+Special thanks to Matt Sottek. I did the "guts", he
+did the "brains" and all the testing.
diff --git a/Documentation/hwmon/ads1015 b/Documentation/hwmon/ads1015
index 063b80d857b1..02d2a459385f 100644
--- a/Documentation/hwmon/ads1015
+++ b/Documentation/hwmon/ads1015
@@ -40,7 +40,7 @@ By default all inputs are exported.
Platform Data
-------------
-In linux/i2c/ads1015.h platform data is defined, channel_data contains
+In linux/platform_data/ads1015.h platform data is defined, channel_data contains
configuration data for the used input combinations:
- pga is the programmable gain amplifier (values are full scale)
0: +/- 6.144 V
diff --git a/Documentation/hwmon/adt7475 b/Documentation/hwmon/adt7475
index 0502f2b464e1..09d73a10644c 100644
--- a/Documentation/hwmon/adt7475
+++ b/Documentation/hwmon/adt7475
@@ -109,6 +109,15 @@ fan speed) is applied. PWM values range from 0 (off) to 255 (full speed).
Fan speed may be set to maximum when the temperature sensor associated with
the PWM control exceeds temp#_max.
+At Tmin - hysteresis the PWM output can either be off (0% duty cycle) or at the
+minimum (i.e. auto_point1_pwm). This behaviour can be configured using the
+pwm[1-*]_stall_disable sysfs attribute. A value of 0 means the fans will shut
+off. A value of 1 means the fans will run at auto_point1_pwm.
+
+The responsiveness of the ADT747x to temperature changes can be configured.
+This allows smoothing of the fan speed transition. To set the transition time
+set the value in ms in the temp[1-*]_smoothing sysfs attribute.
+
Notes
-----
diff --git a/Documentation/hwmon/ftsteutates b/Documentation/hwmon/ftsteutates
index 8c10a916de20..af54db92391b 100644
--- a/Documentation/hwmon/ftsteutates
+++ b/Documentation/hwmon/ftsteutates
@@ -18,6 +18,10 @@ enhancements. It can monitor up to 4 voltages, 16 temperatures and
8 fans. It also contains an integrated watchdog which is currently
implemented in this driver.
+To clear a temperature or fan alarm, execute the following command with the
+correct path to the alarm file:
+ echo 0 >XXXX_alarm
+
Specification of the chip can be found here:
ftp://ftp.ts.fujitsu.com/pub/Mainboard-OEM-Sales/Services/Software&Tools/Linux_SystemMonitoring&Watchdog&GPIO/BMC-Teutates_Specification_V1.21.pdf
ftp://ftp.ts.fujitsu.com/pub/Mainboard-OEM-Sales/Services/Software&Tools/Linux_SystemMonitoring&Watchdog&GPIO/Fujitsu_mainboards-1-Sensors_HowTo-en-US.pdf
diff --git a/Documentation/hwmon/ibm-cffps b/Documentation/hwmon/ibm-cffps
new file mode 100644
index 000000000000..e05ecd8ecfcf
--- /dev/null
+++ b/Documentation/hwmon/ibm-cffps
@@ -0,0 +1,54 @@
+Kernel driver ibm-cffps
+=======================
+
+Supported chips:
+ * IBM Common Form Factor power supply
+
+Author: Eddie James <eajames@us.ibm.com>
+
+Description
+-----------
+
+This driver supports IBM Common Form Factor (CFF) power supplies. This driver
+is a client to the core PMBus driver.
+
+Usage Notes
+-----------
+
+This driver does not auto-detect devices. You will have to instantiate the
+devices explicitly. Please see Documentation/i2c/instantiating-devices for
+details.
+
+Sysfs entries
+-------------
+
+The following attributes are supported:
+
+curr1_alarm Output current over-current alarm.
+curr1_input Measured output current in mA.
+curr1_label "iout1"
+
+fan1_alarm Fan 1 warning.
+fan1_fault Fan 1 fault.
+fan1_input Fan 1 speed in RPM.
+fan2_alarm Fan 2 warning.
+fan2_fault Fan 2 fault.
+fan2_input Fan 2 speed in RPM.
+
+in1_alarm Input voltage under-voltage alarm.
+in1_input Measured input voltage in mV.
+in1_label "vin"
+in2_alarm Output voltage over-voltage alarm.
+in2_input Measured output voltage in mV.
+in2_label "vout1"
+
+power1_alarm Input fault or alarm.
+power1_input Measured input power in uW.
+power1_label "pin"
+
+temp1_alarm PSU inlet ambient temperature over-temperature alarm.
+temp1_input Measured PSU inlet ambient temp in millidegrees C.
+temp2_alarm Secondary rectifier temp over-temperature alarm.
+temp2_input Measured secondary rectifier temp in millidegrees C.
+temp3_alarm ORing FET temperature over-temperature alarm.
+temp3_input Measured ORing FET temperature in millidegrees C.
diff --git a/Documentation/hwmon/ir35221 b/Documentation/hwmon/ir35221
new file mode 100644
index 000000000000..f7e112752c04
--- /dev/null
+++ b/Documentation/hwmon/ir35221
@@ -0,0 +1,87 @@
+Kernel driver ir35221
+=====================
+
+Supported chips:
+ * Infinion IR35221
+ Prefix: 'ir35221'
+ Addresses scanned: -
+ Datasheet: Datasheet is not publicly available.
+
+Author: Samuel Mendoza-Jonas <sam@mendozajonas.com>
+
+
+Description
+-----------
+
+IR35221 is a Digital DC-DC Multiphase Converter
+
+
+Usage Notes
+-----------
+
+This driver does not probe for PMBus devices. You will have to instantiate
+devices explicitly.
+
+Example: the following commands will load the driver for an IR35221
+at address 0x70 on I2C bus #4:
+
+# modprobe ir35221
+# echo ir35221 0x70 > /sys/bus/i2c/devices/i2c-4/new_device
+
+
+Sysfs attributes
+----------------
+
+curr1_label "iin"
+curr1_input Measured input current
+curr1_max Maximum current
+curr1_max_alarm Current high alarm
+
+curr[2-3]_label "iout[1-2]"
+curr[2-3]_input Measured output current
+curr[2-3]_crit Critical maximum current
+curr[2-3]_crit_alarm Current critical high alarm
+curr[2-3]_highest Highest output current
+curr[2-3]_lowest Lowest output current
+curr[2-3]_max Maximum current
+curr[2-3]_max_alarm Current high alarm
+
+in1_label "vin"
+in1_input Measured input voltage
+in1_crit Critical maximum input voltage
+in1_crit_alarm Input voltage critical high alarm
+in1_highest Highest input voltage
+in1_lowest Lowest input voltage
+in1_min Minimum input voltage
+in1_min_alarm Input voltage low alarm
+
+in[2-3]_label "vout[1-2]"
+in[2-3]_input Measured output voltage
+in[2-3]_lcrit Critical minimum output voltage
+in[2-3]_lcrit_alarm Output voltage critical low alarm
+in[2-3]_crit Critical maximum output voltage
+in[2-3]_crit_alarm Output voltage critical high alarm
+in[2-3]_highest Highest output voltage
+in[2-3]_lowest Lowest output voltage
+in[2-3]_max Maximum output voltage
+in[2-3]_max_alarm Output voltage high alarm
+in[2-3]_min Minimum output voltage
+in[2-3]_min_alarm Output voltage low alarm
+
+power1_label "pin"
+power1_input Measured input power
+power1_alarm Input power high alarm
+power1_max Input power limit
+
+power[2-3]_label "pout[1-2]"
+power[2-3]_input Measured output power
+power[2-3]_max Output power limit
+power[2-3]_max_alarm Output power high alarm
+
+temp[1-2]_input Measured temperature
+temp[1-2]_crit Critical high temperature
+temp[1-2]_crit_alarm Chip temperature critical high alarm
+temp[1-2]_highest Highest temperature
+temp[1-2]_lowest Lowest temperature
+temp[1-2]_max Maximum temperature
+temp[1-2]_max_alarm Chip temperature high alarm
diff --git a/Documentation/hwmon/lm25066 b/Documentation/hwmon/lm25066
index 2cb20ebb234d..3fa6bf820c88 100644
--- a/Documentation/hwmon/lm25066
+++ b/Documentation/hwmon/lm25066
@@ -29,6 +29,11 @@ Supported chips:
Addresses scanned: -
Datasheet:
http://www.national.com/pf/LM/LM5066.html
+ * Texas Instruments LM5066I
+ Prefix: 'lm5066i'
+ Addresses scanned: -
+ Datasheet:
+ http://www.ti.com/product/LM5066I
Author: Guenter Roeck <linux@roeck-us.net>
@@ -37,8 +42,8 @@ Description
-----------
This driver supports hardware monitoring for National Semiconductor / TI LM25056,
-LM25063, LM25066, LM5064, and LM5066 Power Management, Monitoring, Control, and
-Protection ICs.
+LM25063, LM25066, LM5064, and LM5066/LM5066I Power Management, Monitoring,
+Control, and Protection ICs.
The driver is a client driver to the core PMBus driver. Please see
Documentation/hwmon/pmbus for details on PMBus client drivers.
diff --git a/Documentation/hwmon/ltc4245 b/Documentation/hwmon/ltc4245
index b478b0864965..4ca7a9da09f9 100644
--- a/Documentation/hwmon/ltc4245
+++ b/Documentation/hwmon/ltc4245
@@ -96,7 +96,7 @@ slowly, -EAGAIN will be returned when you read the sysfs attribute containing
the sensor reading.
The LTC4245 chip can be configured to sample all GPIO pins with two methods:
-1) platform data -- see include/linux/i2c/ltc4245.h
+1) platform data -- see include/linux/platform_data/ltc4245.h
2) OF device tree -- add the "ltc4245,use-extra-gpios" property to each chip
The default mode of operation is to sample a single GPIO pin.
diff --git a/Documentation/hwmon/pmbus-core b/Documentation/hwmon/pmbus-core
index 31e4720fed18..8ed10e9ddfb5 100644
--- a/Documentation/hwmon/pmbus-core
+++ b/Documentation/hwmon/pmbus-core
@@ -253,7 +253,7 @@ Specifically, it provides the following information.
PMBus driver platform data
==========================
-PMBus platform data is defined in include/linux/i2c/pmbus.h. Platform data
+PMBus platform data is defined in include/linux/pmbus.h. Platform data
currently only provides a flag field with a single bit used.
#define PMBUS_SKIP_STATUS_CHECK (1 << 0)
diff --git a/Documentation/hwspinlock.txt b/Documentation/hwspinlock.txt
index 61c1ee98e59f..ed640a278185 100644
--- a/Documentation/hwspinlock.txt
+++ b/Documentation/hwspinlock.txt
@@ -1,6 +1,9 @@
+===========================
Hardware Spinlock Framework
+===========================
-1. Introduction
+Introduction
+============
Hardware spinlock modules provide hardware assistance for synchronization
and mutual exclusion between heterogeneous processors and those not operating
@@ -32,286 +35,370 @@ structure).
A common hwspinlock interface makes it possible to have generic, platform-
independent, drivers.
-2. User API
+User API
+========
+
+::
struct hwspinlock *hwspin_lock_request(void);
- - dynamically assign an hwspinlock and return its address, or NULL
- in case an unused hwspinlock isn't available. Users of this
- API will usually want to communicate the lock's id to the remote core
- before it can be used to achieve synchronization.
- Should be called from a process context (might sleep).
+
+Dynamically assign an hwspinlock and return its address, or NULL
+in case an unused hwspinlock isn't available. Users of this
+API will usually want to communicate the lock's id to the remote core
+before it can be used to achieve synchronization.
+
+Should be called from a process context (might sleep).
+
+::
struct hwspinlock *hwspin_lock_request_specific(unsigned int id);
- - assign a specific hwspinlock id and return its address, or NULL
- if that hwspinlock is already in use. Usually board code will
- be calling this function in order to reserve specific hwspinlock
- ids for predefined purposes.
- Should be called from a process context (might sleep).
+
+Assign a specific hwspinlock id and return its address, or NULL
+if that hwspinlock is already in use. Usually board code will
+be calling this function in order to reserve specific hwspinlock
+ids for predefined purposes.
+
+Should be called from a process context (might sleep).
+
+::
int of_hwspin_lock_get_id(struct device_node *np, int index);
- - retrieve the global lock id for an OF phandle-based specific lock.
- This function provides a means for DT users of a hwspinlock module
- to get the global lock id of a specific hwspinlock, so that it can
- be requested using the normal hwspin_lock_request_specific() API.
- The function returns a lock id number on success, -EPROBE_DEFER if
- the hwspinlock device is not yet registered with the core, or other
- error values.
- Should be called from a process context (might sleep).
+
+Retrieve the global lock id for an OF phandle-based specific lock.
+This function provides a means for DT users of a hwspinlock module
+to get the global lock id of a specific hwspinlock, so that it can
+be requested using the normal hwspin_lock_request_specific() API.
+
+The function returns a lock id number on success, -EPROBE_DEFER if
+the hwspinlock device is not yet registered with the core, or other
+error values.
+
+Should be called from a process context (might sleep).
+
+::
int hwspin_lock_free(struct hwspinlock *hwlock);
- - free a previously-assigned hwspinlock; returns 0 on success, or an
- appropriate error code on failure (e.g. -EINVAL if the hwspinlock
- is already free).
- Should be called from a process context (might sleep).
+
+Free a previously-assigned hwspinlock; returns 0 on success, or an
+appropriate error code on failure (e.g. -EINVAL if the hwspinlock
+is already free).
+
+Should be called from a process context (might sleep).
+
+::
int hwspin_lock_timeout(struct hwspinlock *hwlock, unsigned int timeout);
- - lock a previously-assigned hwspinlock with a timeout limit (specified in
- msecs). If the hwspinlock is already taken, the function will busy loop
- waiting for it to be released, but give up when the timeout elapses.
- Upon a successful return from this function, preemption is disabled so
- the caller must not sleep, and is advised to release the hwspinlock as
- soon as possible, in order to minimize remote cores polling on the
- hardware interconnect.
- Returns 0 when successful and an appropriate error code otherwise (most
- notably -ETIMEDOUT if the hwspinlock is still busy after timeout msecs).
- The function will never sleep.
+
+Lock a previously-assigned hwspinlock with a timeout limit (specified in
+msecs). If the hwspinlock is already taken, the function will busy loop
+waiting for it to be released, but give up when the timeout elapses.
+Upon a successful return from this function, preemption is disabled so
+the caller must not sleep, and is advised to release the hwspinlock as
+soon as possible, in order to minimize remote cores polling on the
+hardware interconnect.
+
+Returns 0 when successful and an appropriate error code otherwise (most
+notably -ETIMEDOUT if the hwspinlock is still busy after timeout msecs).
+The function will never sleep.
+
+::
int hwspin_lock_timeout_irq(struct hwspinlock *hwlock, unsigned int timeout);
- - lock a previously-assigned hwspinlock with a timeout limit (specified in
- msecs). If the hwspinlock is already taken, the function will busy loop
- waiting for it to be released, but give up when the timeout elapses.
- Upon a successful return from this function, preemption and the local
- interrupts are disabled, so the caller must not sleep, and is advised to
- release the hwspinlock as soon as possible.
- Returns 0 when successful and an appropriate error code otherwise (most
- notably -ETIMEDOUT if the hwspinlock is still busy after timeout msecs).
- The function will never sleep.
+
+Lock a previously-assigned hwspinlock with a timeout limit (specified in
+msecs). If the hwspinlock is already taken, the function will busy loop
+waiting for it to be released, but give up when the timeout elapses.
+Upon a successful return from this function, preemption and the local
+interrupts are disabled, so the caller must not sleep, and is advised to
+release the hwspinlock as soon as possible.
+
+Returns 0 when successful and an appropriate error code otherwise (most
+notably -ETIMEDOUT if the hwspinlock is still busy after timeout msecs).
+The function will never sleep.
+
+::
int hwspin_lock_timeout_irqsave(struct hwspinlock *hwlock, unsigned int to,
- unsigned long *flags);
- - lock a previously-assigned hwspinlock with a timeout limit (specified in
- msecs). If the hwspinlock is already taken, the function will busy loop
- waiting for it to be released, but give up when the timeout elapses.
- Upon a successful return from this function, preemption is disabled,
- local interrupts are disabled and their previous state is saved at the
- given flags placeholder. The caller must not sleep, and is advised to
- release the hwspinlock as soon as possible.
- Returns 0 when successful and an appropriate error code otherwise (most
- notably -ETIMEDOUT if the hwspinlock is still busy after timeout msecs).
- The function will never sleep.
+ unsigned long *flags);
+
+Lock a previously-assigned hwspinlock with a timeout limit (specified in
+msecs). If the hwspinlock is already taken, the function will busy loop
+waiting for it to be released, but give up when the timeout elapses.
+Upon a successful return from this function, preemption is disabled,
+local interrupts are disabled and their previous state is saved at the
+given flags placeholder. The caller must not sleep, and is advised to
+release the hwspinlock as soon as possible.
+
+Returns 0 when successful and an appropriate error code otherwise (most
+notably -ETIMEDOUT if the hwspinlock is still busy after timeout msecs).
+
+The function will never sleep.
+
+::
int hwspin_trylock(struct hwspinlock *hwlock);
- - attempt to lock a previously-assigned hwspinlock, but immediately fail if
- it is already taken.
- Upon a successful return from this function, preemption is disabled so
- caller must not sleep, and is advised to release the hwspinlock as soon as
- possible, in order to minimize remote cores polling on the hardware
- interconnect.
- Returns 0 on success and an appropriate error code otherwise (most
- notably -EBUSY if the hwspinlock was already taken).
- The function will never sleep.
+
+
+Attempt to lock a previously-assigned hwspinlock, but immediately fail if
+it is already taken.
+
+Upon a successful return from this function, preemption is disabled so
+caller must not sleep, and is advised to release the hwspinlock as soon as
+possible, in order to minimize remote cores polling on the hardware
+interconnect.
+
+Returns 0 on success and an appropriate error code otherwise (most
+notably -EBUSY if the hwspinlock was already taken).
+The function will never sleep.
+
+::
int hwspin_trylock_irq(struct hwspinlock *hwlock);
- - attempt to lock a previously-assigned hwspinlock, but immediately fail if
- it is already taken.
- Upon a successful return from this function, preemption and the local
- interrupts are disabled so caller must not sleep, and is advised to
- release the hwspinlock as soon as possible.
- Returns 0 on success and an appropriate error code otherwise (most
- notably -EBUSY if the hwspinlock was already taken).
- The function will never sleep.
+
+
+Attempt to lock a previously-assigned hwspinlock, but immediately fail if
+it is already taken.
+
+Upon a successful return from this function, preemption and the local
+interrupts are disabled so caller must not sleep, and is advised to
+release the hwspinlock as soon as possible.
+
+Returns 0 on success and an appropriate error code otherwise (most
+notably -EBUSY if the hwspinlock was already taken).
+
+The function will never sleep.
+
+::
int hwspin_trylock_irqsave(struct hwspinlock *hwlock, unsigned long *flags);
- - attempt to lock a previously-assigned hwspinlock, but immediately fail if
- it is already taken.
- Upon a successful return from this function, preemption is disabled,
- the local interrupts are disabled and their previous state is saved
- at the given flags placeholder. The caller must not sleep, and is advised
- to release the hwspinlock as soon as possible.
- Returns 0 on success and an appropriate error code otherwise (most
- notably -EBUSY if the hwspinlock was already taken).
- The function will never sleep.
+
+Attempt to lock a previously-assigned hwspinlock, but immediately fail if
+it is already taken.
+
+Upon a successful return from this function, preemption is disabled,
+the local interrupts are disabled and their previous state is saved
+at the given flags placeholder. The caller must not sleep, and is advised
+to release the hwspinlock as soon as possible.
+
+Returns 0 on success and an appropriate error code otherwise (most
+notably -EBUSY if the hwspinlock was already taken).
+The function will never sleep.
+
+::
void hwspin_unlock(struct hwspinlock *hwlock);
- - unlock a previously-locked hwspinlock. Always succeed, and can be called
- from any context (the function never sleeps). Note: code should _never_
- unlock an hwspinlock which is already unlocked (there is no protection
- against this).
+
+Unlock a previously-locked hwspinlock. Always succeed, and can be called
+from any context (the function never sleeps).
+
+.. note::
+
+ code should **never** unlock an hwspinlock which is already unlocked
+ (there is no protection against this).
+
+::
void hwspin_unlock_irq(struct hwspinlock *hwlock);
- - unlock a previously-locked hwspinlock and enable local interrupts.
- The caller should _never_ unlock an hwspinlock which is already unlocked.
- Doing so is considered a bug (there is no protection against this).
- Upon a successful return from this function, preemption and local
- interrupts are enabled. This function will never sleep.
+
+Unlock a previously-locked hwspinlock and enable local interrupts.
+The caller should **never** unlock an hwspinlock which is already unlocked.
+
+Doing so is considered a bug (there is no protection against this).
+Upon a successful return from this function, preemption and local
+interrupts are enabled. This function will never sleep.
+
+::
void
hwspin_unlock_irqrestore(struct hwspinlock *hwlock, unsigned long *flags);
- - unlock a previously-locked hwspinlock.
- The caller should _never_ unlock an hwspinlock which is already unlocked.
- Doing so is considered a bug (there is no protection against this).
- Upon a successful return from this function, preemption is reenabled,
- and the state of the local interrupts is restored to the state saved at
- the given flags. This function will never sleep.
+
+Unlock a previously-locked hwspinlock.
+
+The caller should **never** unlock an hwspinlock which is already unlocked.
+Doing so is considered a bug (there is no protection against this).
+Upon a successful return from this function, preemption is reenabled,
+and the state of the local interrupts is restored to the state saved at
+the given flags. This function will never sleep.
+
+::
int hwspin_lock_get_id(struct hwspinlock *hwlock);
- - retrieve id number of a given hwspinlock. This is needed when an
- hwspinlock is dynamically assigned: before it can be used to achieve
- mutual exclusion with a remote cpu, the id number should be communicated
- to the remote task with which we want to synchronize.
- Returns the hwspinlock id number, or -EINVAL if hwlock is null.
-
-3. Typical usage
-
-#include <linux/hwspinlock.h>
-#include <linux/err.h>
-
-int hwspinlock_example1(void)
-{
- struct hwspinlock *hwlock;
- int ret;
-
- /* dynamically assign a hwspinlock */
- hwlock = hwspin_lock_request();
- if (!hwlock)
- ...
-
- id = hwspin_lock_get_id(hwlock);
- /* probably need to communicate id to a remote processor now */
-
- /* take the lock, spin for 1 sec if it's already taken */
- ret = hwspin_lock_timeout(hwlock, 1000);
- if (ret)
- ...
-
- /*
- * we took the lock, do our thing now, but do NOT sleep
- */
-
- /* release the lock */
- hwspin_unlock(hwlock);
-
- /* free the lock */
- ret = hwspin_lock_free(hwlock);
- if (ret)
- ...
-
- return ret;
-}
-
-int hwspinlock_example2(void)
-{
- struct hwspinlock *hwlock;
- int ret;
-
- /*
- * assign a specific hwspinlock id - this should be called early
- * by board init code.
- */
- hwlock = hwspin_lock_request_specific(PREDEFINED_LOCK_ID);
- if (!hwlock)
- ...
-
- /* try to take it, but don't spin on it */
- ret = hwspin_trylock(hwlock);
- if (!ret) {
- pr_info("lock is already taken\n");
- return -EBUSY;
- }
- /*
- * we took the lock, do our thing now, but do NOT sleep
- */
+Retrieve id number of a given hwspinlock. This is needed when an
+hwspinlock is dynamically assigned: before it can be used to achieve
+mutual exclusion with a remote cpu, the id number should be communicated
+to the remote task with which we want to synchronize.
+
+Returns the hwspinlock id number, or -EINVAL if hwlock is null.
+
+Typical usage
+=============
- /* release the lock */
- hwspin_unlock(hwlock);
+::
- /* free the lock */
- ret = hwspin_lock_free(hwlock);
- if (ret)
- ...
+ #include <linux/hwspinlock.h>
+ #include <linux/err.h>
- return ret;
-}
+ int hwspinlock_example1(void)
+ {
+ struct hwspinlock *hwlock;
+ int ret;
+ /* dynamically assign a hwspinlock */
+ hwlock = hwspin_lock_request();
+ if (!hwlock)
+ ...
-4. API for implementors
+ id = hwspin_lock_get_id(hwlock);
+ /* probably need to communicate id to a remote processor now */
+
+ /* take the lock, spin for 1 sec if it's already taken */
+ ret = hwspin_lock_timeout(hwlock, 1000);
+ if (ret)
+ ...
+
+ /*
+ * we took the lock, do our thing now, but do NOT sleep
+ */
+
+ /* release the lock */
+ hwspin_unlock(hwlock);
+
+ /* free the lock */
+ ret = hwspin_lock_free(hwlock);
+ if (ret)
+ ...
+
+ return ret;
+ }
+
+ int hwspinlock_example2(void)
+ {
+ struct hwspinlock *hwlock;
+ int ret;
+
+ /*
+ * assign a specific hwspinlock id - this should be called early
+ * by board init code.
+ */
+ hwlock = hwspin_lock_request_specific(PREDEFINED_LOCK_ID);
+ if (!hwlock)
+ ...
+
+ /* try to take it, but don't spin on it */
+ ret = hwspin_trylock(hwlock);
+ if (!ret) {
+ pr_info("lock is already taken\n");
+ return -EBUSY;
+ }
+
+ /*
+ * we took the lock, do our thing now, but do NOT sleep
+ */
+
+ /* release the lock */
+ hwspin_unlock(hwlock);
+
+ /* free the lock */
+ ret = hwspin_lock_free(hwlock);
+ if (ret)
+ ...
+
+ return ret;
+ }
+
+
+API for implementors
+====================
+
+::
int hwspin_lock_register(struct hwspinlock_device *bank, struct device *dev,
const struct hwspinlock_ops *ops, int base_id, int num_locks);
- - to be called from the underlying platform-specific implementation, in
- order to register a new hwspinlock device (which is usually a bank of
- numerous locks). Should be called from a process context (this function
- might sleep).
- Returns 0 on success, or appropriate error code on failure.
+
+To be called from the underlying platform-specific implementation, in
+order to register a new hwspinlock device (which is usually a bank of
+numerous locks). Should be called from a process context (this function
+might sleep).
+
+Returns 0 on success, or appropriate error code on failure.
+
+::
int hwspin_lock_unregister(struct hwspinlock_device *bank);
- - to be called from the underlying vendor-specific implementation, in order
- to unregister an hwspinlock device (which is usually a bank of numerous
- locks).
- Should be called from a process context (this function might sleep).
- Returns the address of hwspinlock on success, or NULL on error (e.g.
- if the hwspinlock is still in use).
-5. Important structs
+To be called from the underlying vendor-specific implementation, in order
+to unregister an hwspinlock device (which is usually a bank of numerous
+locks).
+
+Should be called from a process context (this function might sleep).
+
+Returns the address of hwspinlock on success, or NULL on error (e.g.
+if the hwspinlock is still in use).
+
+Important structs
+=================
struct hwspinlock_device is a device which usually contains a bank
of hardware locks. It is registered by the underlying hwspinlock
implementation using the hwspin_lock_register() API.
-/**
- * struct hwspinlock_device - a device which usually spans numerous hwspinlocks
- * @dev: underlying device, will be used to invoke runtime PM api
- * @ops: platform-specific hwspinlock handlers
- * @base_id: id index of the first lock in this device
- * @num_locks: number of locks in this device
- * @lock: dynamically allocated array of 'struct hwspinlock'
- */
-struct hwspinlock_device {
- struct device *dev;
- const struct hwspinlock_ops *ops;
- int base_id;
- int num_locks;
- struct hwspinlock lock[0];
-};
+::
+
+ /**
+ * struct hwspinlock_device - a device which usually spans numerous hwspinlocks
+ * @dev: underlying device, will be used to invoke runtime PM api
+ * @ops: platform-specific hwspinlock handlers
+ * @base_id: id index of the first lock in this device
+ * @num_locks: number of locks in this device
+ * @lock: dynamically allocated array of 'struct hwspinlock'
+ */
+ struct hwspinlock_device {
+ struct device *dev;
+ const struct hwspinlock_ops *ops;
+ int base_id;
+ int num_locks;
+ struct hwspinlock lock[0];
+ };
struct hwspinlock_device contains an array of hwspinlock structs, each
-of which represents a single hardware lock:
-
-/**
- * struct hwspinlock - this struct represents a single hwspinlock instance
- * @bank: the hwspinlock_device structure which owns this lock
- * @lock: initialized and used by hwspinlock core
- * @priv: private data, owned by the underlying platform-specific hwspinlock drv
- */
-struct hwspinlock {
- struct hwspinlock_device *bank;
- spinlock_t lock;
- void *priv;
-};
+of which represents a single hardware lock::
+
+ /**
+ * struct hwspinlock - this struct represents a single hwspinlock instance
+ * @bank: the hwspinlock_device structure which owns this lock
+ * @lock: initialized and used by hwspinlock core
+ * @priv: private data, owned by the underlying platform-specific hwspinlock drv
+ */
+ struct hwspinlock {
+ struct hwspinlock_device *bank;
+ spinlock_t lock;
+ void *priv;
+ };
When registering a bank of locks, the hwspinlock driver only needs to
set the priv members of the locks. The rest of the members are set and
initialized by the hwspinlock core itself.
-6. Implementation callbacks
+Implementation callbacks
+========================
-There are three possible callbacks defined in 'struct hwspinlock_ops':
+There are three possible callbacks defined in 'struct hwspinlock_ops'::
-struct hwspinlock_ops {
- int (*trylock)(struct hwspinlock *lock);
- void (*unlock)(struct hwspinlock *lock);
- void (*relax)(struct hwspinlock *lock);
-};
+ struct hwspinlock_ops {
+ int (*trylock)(struct hwspinlock *lock);
+ void (*unlock)(struct hwspinlock *lock);
+ void (*relax)(struct hwspinlock *lock);
+ };
The first two callbacks are mandatory:
The ->trylock() callback should make a single attempt to take the lock, and
-return 0 on failure and 1 on success. This callback may _not_ sleep.
+return 0 on failure and 1 on success. This callback may **not** sleep.
The ->unlock() callback releases the lock. It always succeed, and it, too,
-may _not_ sleep.
+may **not** sleep.
The ->relax() callback is optional. It is called by hwspinlock core while
spinning on a lock, and can be used by the underlying implementation to force
-a delay between two successive invocations of ->trylock(). It may _not_ sleep.
+a delay between two successive invocations of ->trylock(). It may **not** sleep.
diff --git a/Documentation/i2c/busses/i2c-i801 b/Documentation/i2c/busses/i2c-i801
index 820d9040de16..d47702456926 100644
--- a/Documentation/i2c/busses/i2c-i801
+++ b/Documentation/i2c/busses/i2c-i801
@@ -34,6 +34,9 @@ Supported adapters:
* Intel Broxton (SOC)
* Intel Lewisburg (PCH)
* Intel Gemini Lake (SOC)
+ * Intel Cannon Lake-H (PCH)
+ * Intel Cannon Lake-LP (PCH)
+ * Intel Cedar Fork (PCH)
Datasheets: Publicly available at the Intel website
On Intel Patsburg and later chipsets, both the normal host SMBus controller
diff --git a/Documentation/i2c/dev-interface b/Documentation/i2c/dev-interface
index bcf919d8625c..5ff19447ac44 100644
--- a/Documentation/i2c/dev-interface
+++ b/Documentation/i2c/dev-interface
@@ -191,7 +191,7 @@ checking on future transactions.)
4* Other ioctl() calls are converted to in-kernel function calls by
i2c-dev. Examples include I2C_FUNCS, which queries the I2C adapter
functionality using i2c.h:i2c_get_functionality(), and I2C_SMBUS, which
-performs an SMBus transaction using i2c-core.c:i2c_smbus_xfer().
+performs an SMBus transaction using i2c-core-smbus.c:i2c_smbus_xfer().
The i2c-dev driver is responsible for checking all the parameters that
come from user-space for validity. After this point, there is no
@@ -200,13 +200,13 @@ and calls that would have been performed by kernel I2C chip drivers
directly. This means that I2C bus drivers don't need to implement
anything special to support access from user-space.
-5* These i2c-core.c/i2c.h functions are wrappers to the actual
-implementation of your I2C bus driver. Each adapter must declare
-callback functions implementing these standard calls.
-i2c.h:i2c_get_functionality() calls i2c_adapter.algo->functionality(),
-while i2c-core.c:i2c_smbus_xfer() calls either
+5* These i2c.h functions are wrappers to the actual implementation of
+your I2C bus driver. Each adapter must declare callback functions
+implementing these standard calls. i2c.h:i2c_get_functionality() calls
+i2c_adapter.algo->functionality(), while
+i2c-core-smbus.c:i2c_smbus_xfer() calls either
adapter.algo->smbus_xfer() if it is implemented, or if not,
-i2c-core.c:i2c_smbus_xfer_emulated() which in turn calls
+i2c-core-smbus.c:i2c_smbus_xfer_emulated() which in turn calls
i2c_adapter.algo->master_xfer().
After your I2C bus driver has processed these requests, execution runs
diff --git a/Documentation/i2c/i2c-topology b/Documentation/i2c/i2c-topology
index 1a014fede0b7..f74d78b53d4d 100644
--- a/Documentation/i2c/i2c-topology
+++ b/Documentation/i2c/i2c-topology
@@ -42,6 +42,10 @@ i2c-arb-gpio-challenge Parent-locked
i2c-mux-gpio Normally parent-locked, mux-locked iff
all involved gpio pins are controlled by the
same i2c root adapter that they mux.
+i2c-mux-gpmux Normally parent-locked, mux-locked iff
+ specified in device-tree.
+i2c-mux-ltc4306 Mux-locked
+i2c-mux-mlxcpld Parent-locked
i2c-mux-pca9541 Parent-locked
i2c-mux-pca954x Parent-locked
i2c-mux-pinctrl Normally parent-locked, mux-locked iff
@@ -50,9 +54,11 @@ i2c-mux-pinctrl Normally parent-locked, mux-locked iff
i2c-mux-reg Parent-locked
In drivers/iio/
+gyro/mpu3050 Mux-locked
imu/inv_mpu6050/ Mux-locked
In drivers/media/
+dvb-frontends/lgdt3306a Mux-locked
dvb-frontends/m88ds3103 Parent-locked
dvb-frontends/rtl2830 Parent-locked
dvb-frontends/rtl2832 Mux-locked
diff --git a/Documentation/iio/ep93xx_adc.txt b/Documentation/iio/ep93xx_adc.txt
new file mode 100644
index 000000000000..23053e7817bd
--- /dev/null
+++ b/Documentation/iio/ep93xx_adc.txt
@@ -0,0 +1,29 @@
+Cirrus Logic EP93xx ADC driver.
+
+1. Overview
+
+The driver is intended to work on both low-end (EP9301, EP9302) devices with
+5-channel ADC and high-end (EP9307, EP9312, EP9315) devices with 10-channel
+touchscreen/ADC module.
+
+2. Channel numbering
+
+Numbering scheme for channels 0..4 is defined in EP9301 and EP9302 datasheets.
+EP9307, EP9312 and EP9312 have 3 channels more (total 8), but the numbering is
+not defined. So the last three are numbered randomly, let's say.
+
+Assuming ep93xx_adc is IIO device0, you'd find the following entries under
+/sys/bus/iio/devices/iio:device0/:
+
+ +-----------------+---------------+
+ | sysfs entry | ball/pin name |
+ +-----------------+---------------+
+ | in_voltage0_raw | YM |
+ | in_voltage1_raw | SXP |
+ | in_voltage2_raw | SXM |
+ | in_voltage3_raw | SYP |
+ | in_voltage4_raw | SYM |
+ | in_voltage5_raw | XP |
+ | in_voltage6_raw | XM |
+ | in_voltage7_raw | YP |
+ +-----------------+---------------+
diff --git a/Documentation/index.rst b/Documentation/index.rst
index bc67dbf76eb0..cb7f1ba5b3b1 100644
--- a/Documentation/index.rst
+++ b/Documentation/index.rst
@@ -3,8 +3,8 @@
You can adapt this file completely to your liking, but it should at least
contain the root `toctree` directive.
-Welcome to The Linux Kernel's documentation
-===========================================
+The Linux Kernel documentation
+==============================
This is the top level of the kernel's documentation tree. Kernel
documentation, like the kernel itself, is very much a work in progress;
@@ -51,6 +51,7 @@ merged much easier.
process/index
dev-tools/index
doc-guide/index
+ kernel-hacking/index
Kernel API documentation
------------------------
@@ -67,11 +68,24 @@ needed).
driver-api/index
core-api/index
media/index
+ networking/index
input/index
gpu/index
security/index
sound/index
crypto/index
+ filesystems/index
+
+Architecture-specific documentation
+-----------------------------------
+
+These books provide programming details about architecture-specific
+implementation.
+
+.. toctree::
+ :maxdepth: 2
+
+ sh/index
Korean translations
-------------------
diff --git a/Documentation/infiniband/tag_matching.txt b/Documentation/infiniband/tag_matching.txt
new file mode 100644
index 000000000000..d2a3bf819226
--- /dev/null
+++ b/Documentation/infiniband/tag_matching.txt
@@ -0,0 +1,64 @@
+Tag matching logic
+
+The MPI standard defines a set of rules, known as tag-matching, for matching
+source send operations to destination receives. The following parameters must
+match the following source and destination parameters:
+* Communicator
+* User tag - wild card may be specified by the receiver
+* Source rank – wild car may be specified by the receiver
+* Destination rank – wild
+The ordering rules require that when more than one pair of send and receive
+message envelopes may match, the pair that includes the earliest posted-send
+and the earliest posted-receive is the pair that must be used to satisfy the
+matching operation. However, this doesn’t imply that tags are consumed in
+the order they are created, e.g., a later generated tag may be consumed, if
+earlier tags can’t be used to satisfy the matching rules.
+
+When a message is sent from the sender to the receiver, the communication
+library may attempt to process the operation either after or before the
+corresponding matching receive is posted. If a matching receive is posted,
+this is an expected message, otherwise it is called an unexpected message.
+Implementations frequently use different matching schemes for these two
+different matching instances.
+
+To keep MPI library memory footprint down, MPI implementations typically use
+two different protocols for this purpose:
+
+1. The Eager protocol- the complete message is sent when the send is
+processed by the sender. A completion send is received in the send_cq
+notifying that the buffer can be reused.
+
+2. The Rendezvous Protocol - the sender sends the tag-matching header,
+and perhaps a portion of data when first notifying the receiver. When the
+corresponding buffer is posted, the responder will use the information from
+the header to initiate an RDMA READ operation directly to the matching buffer.
+A fin message needs to be received in order for the buffer to be reused.
+
+Tag matching implementation
+
+There are two types of matching objects used, the posted receive list and the
+unexpected message list. The application posts receive buffers through calls
+to the MPI receive routines in the posted receive list and posts send messages
+using the MPI send routines. The head of the posted receive list may be
+maintained by the hardware, with the software expected to shadow this list.
+
+When send is initiated and arrives at the receive side, if there is no
+pre-posted receive for this arriving message, it is passed to the software and
+placed in the unexpected message list. Otherwise the match is processed,
+including rendezvous processing, if appropriate, delivering the data to the
+specified receive buffer. This allows overlapping receive-side MPI tag
+matching with computation.
+
+When a receive-message is posted, the communication library will first check
+the software unexpected message list for a matching receive. If a match is
+found, data is delivered to the user buffer, using a software controlled
+protocol. The UCX implementation uses either an eager or rendezvous protocol,
+depending on data size. If no match is found, the entire pre-posted receive
+list is maintained by the hardware, and there is space to add one more
+pre-posted receive to this list, this receive is passed to the hardware.
+Software is expected to shadow this list, to help with processing MPI cancel
+operations. In addition, because hardware and software are not expected to be
+tightly synchronized with respect to the tag-matching operation, this shadow
+list is used to detect the case that a pre-posted receive is passed to the
+hardware, as the matching unexpected message is being passed from the hardware
+to the software.
diff --git a/Documentation/input/index.rst b/Documentation/input/index.rst
index 7a3e71c2bd00..9888f5cbf6d5 100644
--- a/Documentation/input/index.rst
+++ b/Documentation/input/index.rst
@@ -6,7 +6,6 @@ Contents:
.. toctree::
:maxdepth: 2
- :numbered:
input_uapi
input_kapi
diff --git a/Documentation/input/input.rst b/Documentation/input/input.rst
index 3b3a22975106..47f86a4bf16c 100644
--- a/Documentation/input/input.rst
+++ b/Documentation/input/input.rst
@@ -109,7 +109,7 @@ evdev nodes are created with minors starting with 256.
keyboard
~~~~~~~~
-``keyboard`` is in-kernel input handler ad is a part of VT code. It
+``keyboard`` is in-kernel input handler and is a part of VT code. It
consumes keyboard keystrokes and handles user input for VT consoles.
mousedev
diff --git a/Documentation/input/joydev/index.rst b/Documentation/input/joydev/index.rst
index 8d9666c7561c..ebcff43056e2 100644
--- a/Documentation/input/joydev/index.rst
+++ b/Documentation/input/joydev/index.rst
@@ -12,7 +12,6 @@ Linux Joystick support
.. toctree::
:maxdepth: 3
- :numbered:
joystick
joystick-api
diff --git a/Documentation/intel_txt.txt b/Documentation/intel_txt.txt
index 91d89c540709..d83c1a2122c9 100644
--- a/Documentation/intel_txt.txt
+++ b/Documentation/intel_txt.txt
@@ -1,4 +1,5 @@
-Intel(R) TXT Overview:
+=====================
+Intel(R) TXT Overview
=====================
Intel's technology for safer computing, Intel(R) Trusted Execution
@@ -8,9 +9,10 @@ provide the building blocks for creating trusted platforms.
Intel TXT was formerly known by the code name LaGrande Technology (LT).
Intel TXT in Brief:
-o Provides dynamic root of trust for measurement (DRTM)
-o Data protection in case of improper shutdown
-o Measurement and verification of launched environment
+
+- Provides dynamic root of trust for measurement (DRTM)
+- Data protection in case of improper shutdown
+- Measurement and verification of launched environment
Intel TXT is part of the vPro(TM) brand and is also available some
non-vPro systems. It is currently available on desktop systems
@@ -24,16 +26,21 @@ which has been updated for the new released platforms.
Intel TXT has been presented at various events over the past few
years, some of which are:
- LinuxTAG 2008:
+
+ - LinuxTAG 2008:
http://www.linuxtag.org/2008/en/conf/events/vp-donnerstag.html
- TRUST2008:
+
+ - TRUST2008:
http://www.trust-conference.eu/downloads/Keynote-Speakers/
3_David-Grawrock_The-Front-Door-of-Trusted-Computing.pdf
- IDF, Shanghai:
+
+ - IDF, Shanghai:
http://www.prcidf.com.cn/index_en.html
- IDFs 2006, 2007 (I'm not sure if/where they are online)
-Trusted Boot Project Overview:
+ - IDFs 2006, 2007
+ (I'm not sure if/where they are online)
+
+Trusted Boot Project Overview
=============================
Trusted Boot (tboot) is an open source, pre-kernel/VMM module that
@@ -87,11 +94,12 @@ Intel-provided firmware).
How Does it Work?
=================
-o Tboot is an executable that is launched by the bootloader as
+- Tboot is an executable that is launched by the bootloader as
the "kernel" (the binary the bootloader executes).
-o It performs all of the work necessary to determine if the
+- It performs all of the work necessary to determine if the
platform supports Intel TXT and, if so, executes the GETSEC[SENTER]
processor instruction that initiates the dynamic root of trust.
+
- If tboot determines that the system does not support Intel TXT
or is not configured correctly (e.g. the SINIT AC Module was
incorrect), it will directly launch the kernel with no changes
@@ -99,12 +107,14 @@ o It performs all of the work necessary to determine if the
- Tboot will output various information about its progress to the
terminal, serial port, and/or an in-memory log; the output
locations can be configured with a command line switch.
-o The GETSEC[SENTER] instruction will return control to tboot and
+
+- The GETSEC[SENTER] instruction will return control to tboot and
tboot then verifies certain aspects of the environment (e.g. TPM NV
lock, e820 table does not have invalid entries, etc.).
-o It will wake the APs from the special sleep state the GETSEC[SENTER]
+- It will wake the APs from the special sleep state the GETSEC[SENTER]
instruction had put them in and place them into a wait-for-SIPI
state.
+
- Because the processors will not respond to an INIT or SIPI when
in the TXT environment, it is necessary to create a small VT-x
guest for the APs. When they run in this guest, they will
@@ -112,8 +122,10 @@ o It will wake the APs from the special sleep state the GETSEC[SENTER]
VMEXITs, and then disable VT and jump to the SIPI vector. This
approach seemed like a better choice than having to insert
special code into the kernel's MP wakeup sequence.
-o Tboot then applies an (optional) user-defined launch policy to
+
+- Tboot then applies an (optional) user-defined launch policy to
verify the kernel and initrd.
+
- This policy is rooted in TPM NV and is described in the tboot
project. The tboot project also contains code for tools to
create and provision the policy.
@@ -121,30 +133,34 @@ o Tboot then applies an (optional) user-defined launch policy to
then any kernel will be launched.
- Policy action is flexible and can include halting on failures
or simply logging them and continuing.
-o Tboot adjusts the e820 table provided by the bootloader to reserve
+
+- Tboot adjusts the e820 table provided by the bootloader to reserve
its own location in memory as well as to reserve certain other
TXT-related regions.
-o As part of its launch, tboot DMA protects all of RAM (using the
+- As part of its launch, tboot DMA protects all of RAM (using the
VT-d PMRs). Thus, the kernel must be booted with 'intel_iommu=on'
in order to remove this blanket protection and use VT-d's
page-level protection.
-o Tboot will populate a shared page with some data about itself and
+- Tboot will populate a shared page with some data about itself and
pass this to the Linux kernel as it transfers control.
+
- The location of the shared page is passed via the boot_params
struct as a physical address.
-o The kernel will look for the tboot shared page address and, if it
+
+- The kernel will look for the tboot shared page address and, if it
exists, map it.
-o As one of the checks/protections provided by TXT, it makes a copy
+- As one of the checks/protections provided by TXT, it makes a copy
of the VT-d DMARs in a DMA-protected region of memory and verifies
them for correctness. The VT-d code will detect if the kernel was
launched with tboot and use this copy instead of the one in the
ACPI table.
-o At this point, tboot and TXT are out of the picture until a
+- At this point, tboot and TXT are out of the picture until a
shutdown (S<n>)
-o In order to put a system into any of the sleep states after a TXT
+- In order to put a system into any of the sleep states after a TXT
launch, TXT must first be exited. This is to prevent attacks that
attempt to crash the system to gain control on reboot and steal
data left in memory.
+
- The kernel will perform all of its sleep preparation and
populate the shared page with the ACPI data needed to put the
platform in the desired sleep state.
@@ -172,7 +188,7 @@ o In order to put a system into any of the sleep states after a TXT
That's pretty much it for TXT support.
-Configuring the System:
+Configuring the System
======================
This code works with 32bit, 32bit PAE, and 64bit (x86_64) kernels.
@@ -181,7 +197,8 @@ In BIOS, the user must enable: TPM, TXT, VT-x, VT-d. Not all BIOSes
allow these to be individually enabled/disabled and the screens in
which to find them are BIOS-specific.
-grub.conf needs to be modified as follows:
+grub.conf needs to be modified as follows::
+
title Linux 2.6.29-tip w/ tboot
root (hd0,0)
kernel /tboot.gz logging=serial,vga,memory
diff --git a/Documentation/io-mapping.txt b/Documentation/io-mapping.txt
index 5ca78426f54c..a966239f04e4 100644
--- a/Documentation/io-mapping.txt
+++ b/Documentation/io-mapping.txt
@@ -1,66 +1,81 @@
+========================
+The io_mapping functions
+========================
+
+API
+===
+
The io_mapping functions in linux/io-mapping.h provide an abstraction for
efficiently mapping small regions of an I/O device to the CPU. The initial
usage is to support the large graphics aperture on 32-bit processors where
ioremap_wc cannot be used to statically map the entire aperture to the CPU
as it would consume too much of the kernel address space.
-A mapping object is created during driver initialization using
+A mapping object is created during driver initialization using::
struct io_mapping *io_mapping_create_wc(unsigned long base,
unsigned long size)
- 'base' is the bus address of the region to be made
- mappable, while 'size' indicates how large a mapping region to
- enable. Both are in bytes.
+'base' is the bus address of the region to be made
+mappable, while 'size' indicates how large a mapping region to
+enable. Both are in bytes.
- This _wc variant provides a mapping which may only be used
- with the io_mapping_map_atomic_wc or io_mapping_map_wc.
+This _wc variant provides a mapping which may only be used
+with the io_mapping_map_atomic_wc or io_mapping_map_wc.
With this mapping object, individual pages can be mapped either atomically
or not, depending on the necessary scheduling environment. Of course, atomic
-maps are more efficient:
+maps are more efficient::
void *io_mapping_map_atomic_wc(struct io_mapping *mapping,
unsigned long offset)
- 'offset' is the offset within the defined mapping region.
- Accessing addresses beyond the region specified in the
- creation function yields undefined results. Using an offset
- which is not page aligned yields an undefined result. The
- return value points to a single page in CPU address space.
+'offset' is the offset within the defined mapping region.
+Accessing addresses beyond the region specified in the
+creation function yields undefined results. Using an offset
+which is not page aligned yields an undefined result. The
+return value points to a single page in CPU address space.
+
+This _wc variant returns a write-combining map to the
+page and may only be used with mappings created by
+io_mapping_create_wc
- This _wc variant returns a write-combining map to the
- page and may only be used with mappings created by
- io_mapping_create_wc
+Note that the task may not sleep while holding this page
+mapped.
- Note that the task may not sleep while holding this page
- mapped.
+::
void io_mapping_unmap_atomic(void *vaddr)
- 'vaddr' must be the value returned by the last
- io_mapping_map_atomic_wc call. This unmaps the specified
- page and allows the task to sleep once again.
+'vaddr' must be the value returned by the last
+io_mapping_map_atomic_wc call. This unmaps the specified
+page and allows the task to sleep once again.
If you need to sleep while holding the lock, you can use the non-atomic
variant, although they may be significantly slower.
+::
+
void *io_mapping_map_wc(struct io_mapping *mapping,
unsigned long offset)
- This works like io_mapping_map_atomic_wc except it allows
- the task to sleep while holding the page mapped.
+This works like io_mapping_map_atomic_wc except it allows
+the task to sleep while holding the page mapped.
+
+
+::
void io_mapping_unmap(void *vaddr)
- This works like io_mapping_unmap_atomic, except it is used
- for pages mapped with io_mapping_map_wc.
+This works like io_mapping_unmap_atomic, except it is used
+for pages mapped with io_mapping_map_wc.
-At driver close time, the io_mapping object must be freed:
+At driver close time, the io_mapping object must be freed::
void io_mapping_free(struct io_mapping *mapping)
-Current Implementation:
+Current Implementation
+======================
The initial implementation of these functions uses existing mapping
mechanisms and so provides only an abstraction layer and no new
diff --git a/Documentation/io_ordering.txt b/Documentation/io_ordering.txt
index 9faae6f26d32..2ab303ce9a0d 100644
--- a/Documentation/io_ordering.txt
+++ b/Documentation/io_ordering.txt
@@ -1,3 +1,7 @@
+==============================================
+Ordering I/O writes to memory-mapped addresses
+==============================================
+
On some platforms, so-called memory-mapped I/O is weakly ordered. On such
platforms, driver writers are responsible for ensuring that I/O writes to
memory-mapped addresses on their device arrive in the order intended. This is
@@ -8,39 +12,39 @@ critical section of code protected by spinlocks. This would ensure that
subsequent writes to I/O space arrived only after all prior writes (much like a
memory barrier op, mb(), only with respect to I/O).
-A more concrete example from a hypothetical device driver:
+A more concrete example from a hypothetical device driver::
- ...
-CPU A: spin_lock_irqsave(&dev_lock, flags)
-CPU A: val = readl(my_status);
-CPU A: ...
-CPU A: writel(newval, ring_ptr);
-CPU A: spin_unlock_irqrestore(&dev_lock, flags)
- ...
-CPU B: spin_lock_irqsave(&dev_lock, flags)
-CPU B: val = readl(my_status);
-CPU B: ...
-CPU B: writel(newval2, ring_ptr);
-CPU B: spin_unlock_irqrestore(&dev_lock, flags)
- ...
+ ...
+ CPU A: spin_lock_irqsave(&dev_lock, flags)
+ CPU A: val = readl(my_status);
+ CPU A: ...
+ CPU A: writel(newval, ring_ptr);
+ CPU A: spin_unlock_irqrestore(&dev_lock, flags)
+ ...
+ CPU B: spin_lock_irqsave(&dev_lock, flags)
+ CPU B: val = readl(my_status);
+ CPU B: ...
+ CPU B: writel(newval2, ring_ptr);
+ CPU B: spin_unlock_irqrestore(&dev_lock, flags)
+ ...
In the case above, the device may receive newval2 before it receives newval,
-which could cause problems. Fixing it is easy enough though:
+which could cause problems. Fixing it is easy enough though::
- ...
-CPU A: spin_lock_irqsave(&dev_lock, flags)
-CPU A: val = readl(my_status);
-CPU A: ...
-CPU A: writel(newval, ring_ptr);
-CPU A: (void)readl(safe_register); /* maybe a config register? */
-CPU A: spin_unlock_irqrestore(&dev_lock, flags)
- ...
-CPU B: spin_lock_irqsave(&dev_lock, flags)
-CPU B: val = readl(my_status);
-CPU B: ...
-CPU B: writel(newval2, ring_ptr);
-CPU B: (void)readl(safe_register); /* maybe a config register? */
-CPU B: spin_unlock_irqrestore(&dev_lock, flags)
+ ...
+ CPU A: spin_lock_irqsave(&dev_lock, flags)
+ CPU A: val = readl(my_status);
+ CPU A: ...
+ CPU A: writel(newval, ring_ptr);
+ CPU A: (void)readl(safe_register); /* maybe a config register? */
+ CPU A: spin_unlock_irqrestore(&dev_lock, flags)
+ ...
+ CPU B: spin_lock_irqsave(&dev_lock, flags)
+ CPU B: val = readl(my_status);
+ CPU B: ...
+ CPU B: writel(newval2, ring_ptr);
+ CPU B: (void)readl(safe_register); /* maybe a config register? */
+ CPU B: spin_unlock_irqrestore(&dev_lock, flags)
Here, the reads from safe_register will cause the I/O chipset to flush any
pending writes before actually posting the read to the chipset, preventing
diff --git a/Documentation/ioctl/ioctl-number.txt b/Documentation/ioctl/ioctl-number.txt
index 1e9fcb4d0ec8..3e3fdae5f3ed 100644
--- a/Documentation/ioctl/ioctl-number.txt
+++ b/Documentation/ioctl/ioctl-number.txt
@@ -326,7 +326,7 @@ Code Seq#(hex) Include File Comments
0xB5 00-0F uapi/linux/rpmsg.h <mailto:linux-remoteproc@vger.kernel.org>
0xC0 00-0F linux/usb/iowarrior.h
0xCA 00-0F uapi/misc/cxl.h
-0xCA 80-8F uapi/scsi/cxlflash_ioctl.h
+0xCA 80-BF uapi/scsi/cxlflash_ioctl.h
0xCB 00-1F CBM serial IEC bus in development:
<mailto:michael.klein@puffin.lb.shuttle.de>
0xCD 01 linux/reiserfs_fs.h
diff --git a/Documentation/iostats.txt b/Documentation/iostats.txt
index 65f694f2d1c9..04d394a2e06c 100644
--- a/Documentation/iostats.txt
+++ b/Documentation/iostats.txt
@@ -1,49 +1,50 @@
+=====================
I/O statistics fields
----------------
+=====================
Since 2.4.20 (and some versions before, with patches), and 2.5.45,
more extensive disk statistics have been introduced to help measure disk
-activity. Tools such as sar and iostat typically interpret these and do
+activity. Tools such as ``sar`` and ``iostat`` typically interpret these and do
the work for you, but in case you are interested in creating your own
tools, the fields are explained here.
In 2.4 now, the information is found as additional fields in
-/proc/partitions. In 2.6, the same information is found in two
-places: one is in the file /proc/diskstats, and the other is within
+``/proc/partitions``. In 2.6 and upper, the same information is found in two
+places: one is in the file ``/proc/diskstats``, and the other is within
the sysfs file system, which must be mounted in order to obtain
the information. Throughout this document we'll assume that sysfs
-is mounted on /sys, although of course it may be mounted anywhere.
-Both /proc/diskstats and sysfs use the same source for the information
+is mounted on ``/sys``, although of course it may be mounted anywhere.
+Both ``/proc/diskstats`` and sysfs use the same source for the information
and so should not differ.
-Here are examples of these different formats:
+Here are examples of these different formats::
-2.4:
- 3 0 39082680 hda 446216 784926 9550688 4382310 424847 312726 5922052 19310380 0 3376340 23705160
- 3 1 9221278 hda1 35486 0 35496 38030 0 0 0 0 0 38030 38030
+ 2.4:
+ 3 0 39082680 hda 446216 784926 9550688 4382310 424847 312726 5922052 19310380 0 3376340 23705160
+ 3 1 9221278 hda1 35486 0 35496 38030 0 0 0 0 0 38030 38030
+ 2.6+ sysfs:
+ 446216 784926 9550688 4382310 424847 312726 5922052 19310380 0 3376340 23705160
+ 35486 38030 38030 38030
-2.6 sysfs:
- 446216 784926 9550688 4382310 424847 312726 5922052 19310380 0 3376340 23705160
- 35486 38030 38030 38030
+ 2.6+ diskstats:
+ 3 0 hda 446216 784926 9550688 4382310 424847 312726 5922052 19310380 0 3376340 23705160
+ 3 1 hda1 35486 38030 38030 38030
-2.6 diskstats:
- 3 0 hda 446216 784926 9550688 4382310 424847 312726 5922052 19310380 0 3376340 23705160
- 3 1 hda1 35486 38030 38030 38030
+On 2.4 you might execute ``grep 'hda ' /proc/partitions``. On 2.6+, you have
+a choice of ``cat /sys/block/hda/stat`` or ``grep 'hda ' /proc/diskstats``.
-On 2.4 you might execute "grep 'hda ' /proc/partitions". On 2.6, you have
-a choice of "cat /sys/block/hda/stat" or "grep 'hda ' /proc/diskstats".
The advantage of one over the other is that the sysfs choice works well
-if you are watching a known, small set of disks. /proc/diskstats may
+if you are watching a known, small set of disks. ``/proc/diskstats`` may
be a better choice if you are watching a large number of disks because
you'll avoid the overhead of 50, 100, or 500 or more opens/closes with
each snapshot of your disk statistics.
In 2.4, the statistics fields are those after the device name. In
the above example, the first field of statistics would be 446216.
-By contrast, in 2.6 if you look at /sys/block/hda/stat, you'll
+By contrast, in 2.6+ if you look at ``/sys/block/hda/stat``, you'll
find just the eleven fields, beginning with 446216. If you look at
-/proc/diskstats, the eleven fields will be preceded by the major and
+``/proc/diskstats``, the eleven fields will be preceded by the major and
minor device numbers, and device name. Each of these formats provides
eleven fields of statistics, each meaning exactly the same things.
All fields except field 9 are cumulative since boot. Field 9 should
@@ -59,30 +60,40 @@ system-wide stats you'll have to find all the devices and sum them all up.
Field 1 -- # of reads completed
This is the total number of reads completed successfully.
+
Field 2 -- # of reads merged, field 6 -- # of writes merged
Reads and writes which are adjacent to each other may be merged for
efficiency. Thus two 4K reads may become one 8K read before it is
ultimately handed to the disk, and so it will be counted (and queued)
as only one I/O. This field lets you know how often this was done.
+
Field 3 -- # of sectors read
This is the total number of sectors read successfully.
+
Field 4 -- # of milliseconds spent reading
This is the total number of milliseconds spent by all reads (as
measured from __make_request() to end_that_request_last()).
+
Field 5 -- # of writes completed
This is the total number of writes completed successfully.
+
Field 6 -- # of writes merged
See the description of field 2.
+
Field 7 -- # of sectors written
This is the total number of sectors written successfully.
+
Field 8 -- # of milliseconds spent writing
This is the total number of milliseconds spent by all writes (as
measured from __make_request() to end_that_request_last()).
+
Field 9 -- # of I/Os currently in progress
The only field that should go to zero. Incremented as requests are
given to appropriate struct request_queue and decremented as they finish.
+
Field 10 -- # of milliseconds spent doing I/Os
This field increases so long as field 9 is nonzero.
+
Field 11 -- weighted # of milliseconds spent doing I/Os
This field is incremented at each I/O start, I/O completion, I/O
merge, or read of these stats by the number of I/Os in progress
@@ -97,7 +108,7 @@ introduced when changes collide, so (for instance) adding up all the
read I/Os issued per partition should equal those made to the disks ...
but due to the lack of locking it may only be very close.
-In 2.6, there are counters for each CPU, which make the lack of locking
+In 2.6+, there are counters for each CPU, which make the lack of locking
almost a non-issue. When the statistics are read, the per-CPU counters
are summed (possibly overflowing the unsigned long variable they are
summed to) and the result given to the user. There is no convenient
@@ -106,22 +117,25 @@ user interface for accessing the per-CPU counters themselves.
Disks vs Partitions
-------------------
-There were significant changes between 2.4 and 2.6 in the I/O subsystem.
+There were significant changes between 2.4 and 2.6+ in the I/O subsystem.
As a result, some statistic information disappeared. The translation from
a disk address relative to a partition to the disk address relative to
the host disk happens much earlier. All merges and timings now happen
at the disk level rather than at both the disk and partition level as
-in 2.4. Consequently, you'll see a different statistics output on 2.6 for
+in 2.4. Consequently, you'll see a different statistics output on 2.6+ for
partitions from that for disks. There are only *four* fields available
-for partitions on 2.6 machines. This is reflected in the examples above.
+for partitions on 2.6+ machines. This is reflected in the examples above.
Field 1 -- # of reads issued
This is the total number of reads issued to this partition.
+
Field 2 -- # of sectors read
This is the total number of sectors requested to be read from this
partition.
+
Field 3 -- # of writes issued
This is the total number of writes issued to this partition.
+
Field 4 -- # of sectors written
This is the total number of sectors requested to be written to
this partition.
@@ -149,16 +163,16 @@ to some (probably insignificant) inaccuracy.
Additional notes
----------------
-In 2.6, sysfs is not mounted by default. If your distribution of
+In 2.6+, sysfs is not mounted by default. If your distribution of
Linux hasn't added it already, here's the line you'll want to add to
-your /etc/fstab:
+your ``/etc/fstab``::
-none /sys sysfs defaults 0 0
+ none /sys sysfs defaults 0 0
-In 2.6, all disk statistics were removed from /proc/stat. In 2.4, they
-appear in both /proc/partitions and /proc/stat, although the ones in
-/proc/stat take a very different format from those in /proc/partitions
+In 2.6+, all disk statistics were removed from ``/proc/stat``. In 2.4, they
+appear in both ``/proc/partitions`` and ``/proc/stat``, although the ones in
+``/proc/stat`` take a very different format from those in ``/proc/partitions``
(see proc(5), if your system has it.)
-- ricklind@us.ibm.com
diff --git a/Documentation/irqflags-tracing.txt b/Documentation/irqflags-tracing.txt
index f6da05670e16..bdd208259fb3 100644
--- a/Documentation/irqflags-tracing.txt
+++ b/Documentation/irqflags-tracing.txt
@@ -1,8 +1,10 @@
+=======================
IRQ-flags state tracing
+=======================
-started by Ingo Molnar <mingo@redhat.com>
+:Author: started by Ingo Molnar <mingo@redhat.com>
-the "irq-flags tracing" feature "traces" hardirq and softirq state, in
+The "irq-flags tracing" feature "traces" hardirq and softirq state, in
that it gives interested subsystems an opportunity to be notified of
every hardirqs-off/hardirqs-on, softirqs-off/softirqs-on event that
happens in the kernel.
@@ -14,7 +16,7 @@ CONFIG_PROVE_RWSEM_LOCKING will be offered on an architecture - these
are locking APIs that are not used in IRQ context. (the one exception
for rwsems is worked around)
-architecture support for this is certainly not in the "trivial"
+Architecture support for this is certainly not in the "trivial"
category, because lots of lowlevel assembly code deal with irq-flags
state changes. But an architecture can be irq-flags-tracing enabled in a
rather straightforward and risk-free manner.
@@ -41,7 +43,7 @@ irq-flags-tracing support:
excluded from the irq-tracing [and lock validation] mechanism via
lockdep_off()/lockdep_on().
-in general there is no risk from having an incomplete irq-flags-tracing
+In general there is no risk from having an incomplete irq-flags-tracing
implementation in an architecture: lockdep will detect that and will
turn itself off. I.e. the lock validator will still be reliable. There
should be no crashes due to irq-tracing bugs. (except if the assembly
diff --git a/Documentation/isa.txt b/Documentation/isa.txt
index f232c26a40be..def4a7b690b5 100644
--- a/Documentation/isa.txt
+++ b/Documentation/isa.txt
@@ -1,5 +1,6 @@
+===========
ISA Drivers
------------
+===========
The following text is adapted from the commit message of the initial
commit of the ISA bus driver authored by Rene Herman.
@@ -23,17 +24,17 @@ that all device creation has been made internal as well.
The usage model this provides is nice, and has been acked from the ALSA
side by Takashi Iwai and Jaroslav Kysela. The ALSA driver module_init's
-now (for oldisa-only drivers) become:
+now (for oldisa-only drivers) become::
-static int __init alsa_card_foo_init(void)
-{
- return isa_register_driver(&snd_foo_isa_driver, SNDRV_CARDS);
-}
+ static int __init alsa_card_foo_init(void)
+ {
+ return isa_register_driver(&snd_foo_isa_driver, SNDRV_CARDS);
+ }
-static void __exit alsa_card_foo_exit(void)
-{
- isa_unregister_driver(&snd_foo_isa_driver);
-}
+ static void __exit alsa_card_foo_exit(void)
+ {
+ isa_unregister_driver(&snd_foo_isa_driver);
+ }
Quite like the other bus models therefore. This removes a lot of
duplicated init code from the ALSA ISA drivers.
@@ -47,11 +48,11 @@ parameter, indicating how many devices to create and call our methods
with.
The platform_driver callbacks are called with a platform_device param;
-the isa_driver callbacks are being called with a "struct device *dev,
-unsigned int id" pair directly -- with the device creation completely
+the isa_driver callbacks are being called with a ``struct device *dev,
+unsigned int id`` pair directly -- with the device creation completely
internal to the bus it's much cleaner to not leak isa_dev's by passing
them in at all. The id is the only thing we ever want other then the
-struct device * anyways, and it makes for nicer code in the callbacks as
+struct device anyways, and it makes for nicer code in the callbacks as
well.
With this additional .match() callback ISA drivers have all options. If
@@ -75,20 +76,20 @@ This exports only two functions; isa_{,un}register_driver().
isa_register_driver() register's the struct device_driver, and then
loops over the passed in ndev creating devices and registering them.
-This causes the bus match method to be called for them, which is:
+This causes the bus match method to be called for them, which is::
-int isa_bus_match(struct device *dev, struct device_driver *driver)
-{
- struct isa_driver *isa_driver = to_isa_driver(driver);
+ int isa_bus_match(struct device *dev, struct device_driver *driver)
+ {
+ struct isa_driver *isa_driver = to_isa_driver(driver);
- if (dev->platform_data == isa_driver) {
- if (!isa_driver->match ||
- isa_driver->match(dev, to_isa_dev(dev)->id))
- return 1;
- dev->platform_data = NULL;
- }
- return 0;
-}
+ if (dev->platform_data == isa_driver) {
+ if (!isa_driver->match ||
+ isa_driver->match(dev, to_isa_dev(dev)->id))
+ return 1;
+ dev->platform_data = NULL;
+ }
+ return 0;
+ }
The first thing this does is check if this device is in fact one of this
driver's devices by seeing if the device's platform_data pointer is set
@@ -102,7 +103,7 @@ well.
Then, if the the driver did not provide a .match, it matches. If it did,
the driver match() method is called to determine a match.
-If it did _not_ match, dev->platform_data is reset to indicate this to
+If it did **not** match, dev->platform_data is reset to indicate this to
isa_register_driver which can then unregister the device again.
If during all this, there's any error, or no devices matched at all
diff --git a/Documentation/isapnp.txt b/Documentation/isapnp.txt
index 400d1b5b523d..8d0840ac847b 100644
--- a/Documentation/isapnp.txt
+++ b/Documentation/isapnp.txt
@@ -1,3 +1,4 @@
+==========================================================
ISA Plug & Play support by Jaroslav Kysela <perex@suse.cz>
==========================================================
diff --git a/Documentation/kbuild/kbuild.txt b/Documentation/kbuild/kbuild.txt
index 0ff6a466a05b..ac2363ea05c5 100644
--- a/Documentation/kbuild/kbuild.txt
+++ b/Documentation/kbuild/kbuild.txt
@@ -236,5 +236,9 @@ Files specified with KBUILD_VMLINUX_INIT are linked first.
KBUILD_VMLINUX_MAIN
--------------------------------------------------
All object files for the main part of vmlinux.
-KBUILD_VMLINUX_INIT and KBUILD_VMLINUX_MAIN together specify
-all the object files used to link vmlinux.
+
+KBUILD_VMLINUX_LIBS
+--------------------------------------------------
+All .a "lib" files for vmlinux.
+KBUILD_VMLINUX_INIT, KBUILD_VMLINUX_MAIN, and KBUILD_VMLINUX_LIBS together
+specify all the object files used to link vmlinux.
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index e18daca65ccd..329e740adea7 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -45,10 +45,9 @@ This document describes the Linux kernel Makefiles.
=== 7 Kbuild syntax for exported headers
--- 7.1 no-export-headers
- --- 7.2 genhdr-y
- --- 7.3 generic-y
- --- 7.4 generated-y
- --- 7.5 mandatory-y
+ --- 7.2 generic-y
+ --- 7.3 generated-y
+ --- 7.4 mandatory-y
=== 8 Kbuild Variables
=== 9 Makefile language
@@ -298,9 +297,9 @@ more details, with real examples.
ccflags-y specifies options for compiling with $(CC).
Example:
- # drivers/acpi/Makefile
- ccflags-y := -Os
- ccflags-$(CONFIG_ACPI_DEBUG) += -DACPI_DEBUG_OUTPUT
+ # drivers/acpi/acpica/Makefile
+ ccflags-y := -Os -D_LINUX -DBUILDING_ACPICA
+ ccflags-$(CONFIG_ACPI_DEBUG) += -DACPI_DEBUG_OUTPUT
This variable is necessary because the top Makefile owns the
variable $(KBUILD_CFLAGS) and uses it for compilation flags for the
@@ -487,22 +486,6 @@ more details, with real examples.
respectively.
Note: cc-option-yn uses KBUILD_CFLAGS for $(CC) options
- cc-option-align
- gcc versions >= 3.0 changed the type of options used to specify
- alignment of functions, loops etc. $(cc-option-align), when used
- as prefix to the align options, will select the right prefix:
- gcc < 3.00
- cc-option-align = -malign
- gcc >= 3.00
- cc-option-align = -falign
-
- Example:
- KBUILD_CFLAGS += $(cc-option-align)-functions=4
-
- In the above example, the option -falign-functions=4 is used for
- gcc >= 3.00. For gcc < 3.00, -malign-functions=4 is used.
- Note: cc-option-align uses KBUILD_CFLAGS for $(CC) options
-
cc-disable-warning
cc-disable-warning checks if gcc supports a given warning and returns
the commandline switch to disable it. This special function is needed,
@@ -1277,18 +1260,7 @@ See subsequent chapter for the syntax of the Kbuild file.
avoid exporting specific headers (e.g. kvm.h) on architectures that do
not support it. It should be avoided as much as possible.
- --- 7.2 genhdr-y
-
- genhdr-y specifies asm files to be generated.
-
- Example:
- #arch/x86/include/uapi/asm/Kbuild
- genhdr-y += unistd_32.h
- genhdr-y += unistd_64.h
- genhdr-y += unistd_x32.h
-
-
- --- 7.3 generic-y
+ --- 7.2 generic-y
If an architecture uses a verbatim copy of a header from
include/asm-generic then this is listed in the file
@@ -1315,11 +1287,10 @@ See subsequent chapter for the syntax of the Kbuild file.
Example: termios.h
#include <asm-generic/termios.h>
- --- 7.4 generated-y
+ --- 7.3 generated-y
If an architecture generates other header files alongside generic-y
- wrappers, and not included in genhdr-y, then generated-y specifies
- them.
+ wrappers, generated-y specifies them.
This prevents them being treated as stale asm-generic wrappers and
removed.
@@ -1331,7 +1302,7 @@ See subsequent chapter for the syntax of the Kbuild file.
--- 7.5 mandatory-y
mandatory-y is essentially used by include/uapi/asm-generic/Kbuild.asm
- to define the minimun set of headers that must be exported in
+ to define the minimum set of headers that must be exported in
include/asm.
The convention is to list one subdir per line and
diff --git a/Documentation/kdump/kdump.txt b/Documentation/kdump/kdump.txt
index 615434d81108..51814450a7f8 100644
--- a/Documentation/kdump/kdump.txt
+++ b/Documentation/kdump/kdump.txt
@@ -112,8 +112,8 @@ There are two possible methods of using Kdump.
2) Or use the system kernel binary itself as dump-capture kernel and there is
no need to build a separate dump-capture kernel. This is possible
only with the architectures which support a relocatable kernel. As
- of today, i386, x86_64, ppc64, ia64 and arm architectures support relocatable
- kernel.
+ of today, i386, x86_64, ppc64, ia64, arm and arm64 architectures support
+ relocatable kernel.
Building a relocatable kernel is advantageous from the point of view that
one does not have to build a second kernel for capturing the dump. But
@@ -339,7 +339,7 @@ For arm:
For arm64:
- Use vmlinux or Image
-If you are using a uncompressed vmlinux image then use following command
+If you are using an uncompressed vmlinux image then use following command
to load dump-capture kernel.
kexec -p <dump-capture-kernel-vmlinux-image> \
@@ -361,6 +361,12 @@ to load dump-capture kernel.
--dtb=<dtb-for-dump-capture-kernel> \
--append="root=<root-dev> <arch-specific-options>"
+If you are using an uncompressed Image, then use following command
+to load dump-capture kernel.
+
+ kexec -p <dump-capture-kernel-Image> \
+ --initrd=<initrd-for-dump-capture-kernel> \
+ --append="root=<root-dev> <arch-specific-options>"
Please note, that --args-linux does not need to be specified for ia64.
It is planned to make this a no-op on that architecture, but for now
diff --git a/Documentation/kernel-doc-nano-HOWTO.txt b/Documentation/kernel-doc-nano-HOWTO.txt
index 104740ea0041..c23e2c5ab80d 100644
--- a/Documentation/kernel-doc-nano-HOWTO.txt
+++ b/Documentation/kernel-doc-nano-HOWTO.txt
@@ -17,8 +17,8 @@ The format for this documentation is called the kernel-doc format.
It is documented in this Documentation/kernel-doc-nano-HOWTO.txt file.
This style embeds the documentation within the source files, using
-a few simple conventions. The scripts/kernel-doc perl script, some
-SGML templates in Documentation/DocBook, and other tools understand
+a few simple conventions. The scripts/kernel-doc perl script, the
+Documentation/sphinx/kerneldoc.py Sphinx extension and other tools understand
these conventions, and are used to extract this embedded documentation
into various documents.
@@ -122,15 +122,9 @@ are:
- scripts/kernel-doc
This is a perl script that hunts for the block comments and can mark
- them up directly into DocBook, man, text, and HTML. (No, not
+ them up directly into DocBook, ReST, man, text, and HTML. (No, not
texinfo.)
-- Documentation/DocBook/*.tmpl
-
- These are SGML template files, which are normal SGML files with
- special place-holders for where the extracted documentation should
- go.
-
- scripts/docproc.c
This is a program for converting SGML template files into SGML
@@ -145,25 +139,18 @@ are:
- Makefile
- The targets 'xmldocs', 'psdocs', 'pdfdocs', and 'htmldocs' are used
- to build XML DocBook files, PostScript files, PDF files, and html files
- in Documentation/DocBook. The older target 'sgmldocs' is equivalent
- to 'xmldocs'.
-
-- Documentation/DocBook/Makefile
-
- This is where C files are associated with SGML templates.
-
+ The targets 'xmldocs', 'latexdocs', 'pdfdocs', 'epubdocs'and 'htmldocs'
+ are used to build XML DocBook files, LaTeX files, PDF files,
+ ePub files and html files in Documentation/.
How to extract the documentation
--------------------------------
If you just want to read the ready-made books on the various
-subsystems (see Documentation/DocBook/*.tmpl), just type 'make
-psdocs', or 'make pdfdocs', or 'make htmldocs', depending on your
-preference. If you would rather read a different format, you can type
-'make xmldocs' and then use DocBook tools to convert
-Documentation/DocBook/*.xml to a format of your choice (for example,
+subsystems, just type 'make epubdocs', or 'make pdfdocs', or 'make htmldocs',
+depending on your preference. If you would rather read a different format,
+you can type 'make xmldocs' and then use DocBook tools to convert
+Documentation/output/*.xml to a format of your choice (for example,
'db2html ...' if 'make htmldocs' was not defined).
If you want to see man pages instead, you can do this:
@@ -329,37 +316,7 @@ This is done by using a DOC: section keyword with a section title. E.g.:
* hardware, software, or its subject(s).
*/
-DOC: sections are used in SGML templates files as indicated below.
-
-
-How to make new SGML template files
------------------------------------
-
-SGML template files (*.tmpl) are like normal SGML files, except that
-they can contain escape sequences where extracted documentation should
-be inserted.
-
-!E<filename> is replaced by the documentation, in <filename>, for
-functions that are exported using EXPORT_SYMBOL: the function list is
-collected from files listed in Documentation/DocBook/Makefile.
-
-!I<filename> is replaced by the documentation for functions that are
-_not_ exported using EXPORT_SYMBOL.
-
-!D<filename> is used to name additional files to search for functions
-exported using EXPORT_SYMBOL.
-
-!F<filename> <function [functions...]> is replaced by the
-documentation, in <filename>, for the functions listed.
-
-!P<filename> <section title> is replaced by the contents of the DOC:
-section titled <section title> from <filename>.
-Spaces are allowed in <section title>; do not quote the <section title>.
-
-!C<filename> is replaced by nothing, but makes the tools check that
-all DOC: sections and documented functions, symbols, etc. are used.
-This makes sense to use when you use !F/!P only and want to verify
-that all documentation is included.
+DOC: sections are used in ReST files.
Tim.
*/ <twaugh@redhat.com>
diff --git a/Documentation/kernel-hacking/conf.py b/Documentation/kernel-hacking/conf.py
new file mode 100644
index 000000000000..3d8acf0f33ad
--- /dev/null
+++ b/Documentation/kernel-hacking/conf.py
@@ -0,0 +1,10 @@
+# -*- coding: utf-8; mode: python -*-
+
+project = "Kernel Hacking Guides"
+
+tags.add("subproject")
+
+latex_documents = [
+ ('index', 'kernel-hacking.tex', project,
+ 'The kernel development community', 'manual'),
+]
diff --git a/Documentation/kernel-hacking/hacking.rst b/Documentation/kernel-hacking/hacking.rst
new file mode 100644
index 000000000000..daf3883b2694
--- /dev/null
+++ b/Documentation/kernel-hacking/hacking.rst
@@ -0,0 +1,811 @@
+============================================
+Unreliable Guide To Hacking The Linux Kernel
+============================================
+
+:Author: Rusty Russell
+
+Introduction
+============
+
+Welcome, gentle reader, to Rusty's Remarkably Unreliable Guide to Linux
+Kernel Hacking. This document describes the common routines and general
+requirements for kernel code: its goal is to serve as a primer for Linux
+kernel development for experienced C programmers. I avoid implementation
+details: that's what the code is for, and I ignore whole tracts of
+useful routines.
+
+Before you read this, please understand that I never wanted to write
+this document, being grossly under-qualified, but I always wanted to
+read it, and this was the only way. I hope it will grow into a
+compendium of best practice, common starting points and random
+information.
+
+The Players
+===========
+
+At any time each of the CPUs in a system can be:
+
+- not associated with any process, serving a hardware interrupt;
+
+- not associated with any process, serving a softirq or tasklet;
+
+- running in kernel space, associated with a process (user context);
+
+- running a process in user space.
+
+There is an ordering between these. The bottom two can preempt each
+other, but above that is a strict hierarchy: each can only be preempted
+by the ones above it. For example, while a softirq is running on a CPU,
+no other softirq will preempt it, but a hardware interrupt can. However,
+any other CPUs in the system execute independently.
+
+We'll see a number of ways that the user context can block interrupts,
+to become truly non-preemptable.
+
+User Context
+------------
+
+User context is when you are coming in from a system call or other trap:
+like userspace, you can be preempted by more important tasks and by
+interrupts. You can sleep, by calling :c:func:`schedule()`.
+
+.. note::
+
+ You are always in user context on module load and unload, and on
+ operations on the block device layer.
+
+In user context, the ``current`` pointer (indicating the task we are
+currently executing) is valid, and :c:func:`in_interrupt()`
+(``include/linux/preempt.h``) is false.
+
+.. warning::
+
+ Beware that if you have preemption or softirqs disabled (see below),
+ :c:func:`in_interrupt()` will return a false positive.
+
+Hardware Interrupts (Hard IRQs)
+-------------------------------
+
+Timer ticks, network cards and keyboard are examples of real hardware
+which produce interrupts at any time. The kernel runs interrupt
+handlers, which services the hardware. The kernel guarantees that this
+handler is never re-entered: if the same interrupt arrives, it is queued
+(or dropped). Because it disables interrupts, this handler has to be
+fast: frequently it simply acknowledges the interrupt, marks a 'software
+interrupt' for execution and exits.
+
+You can tell you are in a hardware interrupt, because
+:c:func:`in_irq()` returns true.
+
+.. warning::
+
+ Beware that this will return a false positive if interrupts are
+ disabled (see below).
+
+Software Interrupt Context: Softirqs and Tasklets
+-------------------------------------------------
+
+Whenever a system call is about to return to userspace, or a hardware
+interrupt handler exits, any 'software interrupts' which are marked
+pending (usually by hardware interrupts) are run (``kernel/softirq.c``).
+
+Much of the real interrupt handling work is done here. Early in the
+transition to SMP, there were only 'bottom halves' (BHs), which didn't
+take advantage of multiple CPUs. Shortly after we switched from wind-up
+computers made of match-sticks and snot, we abandoned this limitation
+and switched to 'softirqs'.
+
+``include/linux/interrupt.h`` lists the different softirqs. A very
+important softirq is the timer softirq (``include/linux/timer.h``): you
+can register to have it call functions for you in a given length of
+time.
+
+Softirqs are often a pain to deal with, since the same softirq will run
+simultaneously on more than one CPU. For this reason, tasklets
+(``include/linux/interrupt.h``) are more often used: they are
+dynamically-registrable (meaning you can have as many as you want), and
+they also guarantee that any tasklet will only run on one CPU at any
+time, although different tasklets can run simultaneously.
+
+.. warning::
+
+ The name 'tasklet' is misleading: they have nothing to do with
+ 'tasks', and probably more to do with some bad vodka Alexey
+ Kuznetsov had at the time.
+
+You can tell you are in a softirq (or tasklet) using the
+:c:func:`in_softirq()` macro (``include/linux/preempt.h``).
+
+.. warning::
+
+ Beware that this will return a false positive if a
+ :ref:`botton half lock <local_bh_disable>` is held.
+
+Some Basic Rules
+================
+
+No memory protection
+ If you corrupt memory, whether in user context or interrupt context,
+ the whole machine will crash. Are you sure you can't do what you
+ want in userspace?
+
+No floating point or MMX
+ The FPU context is not saved; even in user context the FPU state
+ probably won't correspond with the current process: you would mess
+ with some user process' FPU state. If you really want to do this,
+ you would have to explicitly save/restore the full FPU state (and
+ avoid context switches). It is generally a bad idea; use fixed point
+ arithmetic first.
+
+A rigid stack limit
+ Depending on configuration options the kernel stack is about 3K to
+ 6K for most 32-bit architectures: it's about 14K on most 64-bit
+ archs, and often shared with interrupts so you can't use it all.
+ Avoid deep recursion and huge local arrays on the stack (allocate
+ them dynamically instead).
+
+The Linux kernel is portable
+ Let's keep it that way. Your code should be 64-bit clean, and
+ endian-independent. You should also minimize CPU specific stuff,
+ e.g. inline assembly should be cleanly encapsulated and minimized to
+ ease porting. Generally it should be restricted to the
+ architecture-dependent part of the kernel tree.
+
+ioctls: Not writing a new system call
+=====================================
+
+A system call generally looks like this::
+
+ asmlinkage long sys_mycall(int arg)
+ {
+ return 0;
+ }
+
+
+First, in most cases you don't want to create a new system call. You
+create a character device and implement an appropriate ioctl for it.
+This is much more flexible than system calls, doesn't have to be entered
+in every architecture's ``include/asm/unistd.h`` and
+``arch/kernel/entry.S`` file, and is much more likely to be accepted by
+Linus.
+
+If all your routine does is read or write some parameter, consider
+implementing a :c:func:`sysfs()` interface instead.
+
+Inside the ioctl you're in user context to a process. When a error
+occurs you return a negated errno (see
+``include/uapi/asm-generic/errno-base.h``,
+``include/uapi/asm-generic/errno.h`` and ``include/linux/errno.h``),
+otherwise you return 0.
+
+After you slept you should check if a signal occurred: the Unix/Linux
+way of handling signals is to temporarily exit the system call with the
+``-ERESTARTSYS`` error. The system call entry code will switch back to
+user context, process the signal handler and then your system call will
+be restarted (unless the user disabled that). So you should be prepared
+to process the restart, e.g. if you're in the middle of manipulating
+some data structure.
+
+::
+
+ if (signal_pending(current))
+ return -ERESTARTSYS;
+
+
+If you're doing longer computations: first think userspace. If you
+**really** want to do it in kernel you should regularly check if you need
+to give up the CPU (remember there is cooperative multitasking per CPU).
+Idiom::
+
+ cond_resched(); /* Will sleep */
+
+
+A short note on interface design: the UNIX system call motto is "Provide
+mechanism not policy".
+
+Recipes for Deadlock
+====================
+
+You cannot call any routines which may sleep, unless:
+
+- You are in user context.
+
+- You do not own any spinlocks.
+
+- You have interrupts enabled (actually, Andi Kleen says that the
+ scheduling code will enable them for you, but that's probably not
+ what you wanted).
+
+Note that some functions may sleep implicitly: common ones are the user
+space access functions (\*_user) and memory allocation functions
+without ``GFP_ATOMIC``.
+
+You should always compile your kernel ``CONFIG_DEBUG_ATOMIC_SLEEP`` on,
+and it will warn you if you break these rules. If you **do** break the
+rules, you will eventually lock up your box.
+
+Really.
+
+Common Routines
+===============
+
+:c:func:`printk()`
+------------------
+
+Defined in ``include/linux/printk.h``
+
+:c:func:`printk()` feeds kernel messages to the console, dmesg, and
+the syslog daemon. It is useful for debugging and reporting errors, and
+can be used inside interrupt context, but use with caution: a machine
+which has its console flooded with printk messages is unusable. It uses
+a format string mostly compatible with ANSI C printf, and C string
+concatenation to give it a first "priority" argument::
+
+ printk(KERN_INFO "i = %u\n", i);
+
+
+See ``include/linux/kern_levels.h``; for other ``KERN_`` values; these are
+interpreted by syslog as the level. Special case: for printing an IP
+address use::
+
+ __be32 ipaddress;
+ printk(KERN_INFO "my ip: %pI4\n", &ipaddress);
+
+
+:c:func:`printk()` internally uses a 1K buffer and does not catch
+overruns. Make sure that will be enough.
+
+.. note::
+
+ You will know when you are a real kernel hacker when you start
+ typoing printf as printk in your user programs :)
+
+.. note::
+
+ Another sidenote: the original Unix Version 6 sources had a comment
+ on top of its printf function: "Printf should not be used for
+ chit-chat". You should follow that advice.
+
+:c:func:`copy_to_user()` / :c:func:`copy_from_user()` / :c:func:`get_user()` / :c:func:`put_user()`
+---------------------------------------------------------------------------------------------------
+
+Defined in ``include/linux/uaccess.h`` / ``asm/uaccess.h``
+
+**[SLEEPS]**
+
+:c:func:`put_user()` and :c:func:`get_user()` are used to get
+and put single values (such as an int, char, or long) from and to
+userspace. A pointer into userspace should never be simply dereferenced:
+data should be copied using these routines. Both return ``-EFAULT`` or
+0.
+
+:c:func:`copy_to_user()` and :c:func:`copy_from_user()` are
+more general: they copy an arbitrary amount of data to and from
+userspace.
+
+.. warning::
+
+ Unlike :c:func:`put_user()` and :c:func:`get_user()`, they
+ return the amount of uncopied data (ie. 0 still means success).
+
+[Yes, this moronic interface makes me cringe. The flamewar comes up
+every year or so. --RR.]
+
+The functions may sleep implicitly. This should never be called outside
+user context (it makes no sense), with interrupts disabled, or a
+spinlock held.
+
+:c:func:`kmalloc()`/:c:func:`kfree()`
+-------------------------------------
+
+Defined in ``include/linux/slab.h``
+
+**[MAY SLEEP: SEE BELOW]**
+
+These routines are used to dynamically request pointer-aligned chunks of
+memory, like malloc and free do in userspace, but
+:c:func:`kmalloc()` takes an extra flag word. Important values:
+
+``GFP_KERNEL``
+ May sleep and swap to free memory. Only allowed in user context, but
+ is the most reliable way to allocate memory.
+
+``GFP_ATOMIC``
+ Don't sleep. Less reliable than ``GFP_KERNEL``, but may be called
+ from interrupt context. You should **really** have a good
+ out-of-memory error-handling strategy.
+
+``GFP_DMA``
+ Allocate ISA DMA lower than 16MB. If you don't know what that is you
+ don't need it. Very unreliable.
+
+If you see a sleeping function called from invalid context warning
+message, then maybe you called a sleeping allocation function from
+interrupt context without ``GFP_ATOMIC``. You should really fix that.
+Run, don't walk.
+
+If you are allocating at least ``PAGE_SIZE`` (``asm/page.h`` or
+``asm/page_types.h``) bytes, consider using :c:func:`__get_free_pages()`
+(``include/linux/gfp.h``). It takes an order argument (0 for page sized,
+1 for double page, 2 for four pages etc.) and the same memory priority
+flag word as above.
+
+If you are allocating more than a page worth of bytes you can use
+:c:func:`vmalloc()`. It'll allocate virtual memory in the kernel
+map. This block is not contiguous in physical memory, but the MMU makes
+it look like it is for you (so it'll only look contiguous to the CPUs,
+not to external device drivers). If you really need large physically
+contiguous memory for some weird device, you have a problem: it is
+poorly supported in Linux because after some time memory fragmentation
+in a running kernel makes it hard. The best way is to allocate the block
+early in the boot process via the :c:func:`alloc_bootmem()`
+routine.
+
+Before inventing your own cache of often-used objects consider using a
+slab cache in ``include/linux/slab.h``
+
+:c:func:`current()`
+-------------------
+
+Defined in ``include/asm/current.h``
+
+This global variable (really a macro) contains a pointer to the current
+task structure, so is only valid in user context. For example, when a
+process makes a system call, this will point to the task structure of
+the calling process. It is **not NULL** in interrupt context.
+
+:c:func:`mdelay()`/:c:func:`udelay()`
+-------------------------------------
+
+Defined in ``include/asm/delay.h`` / ``include/linux/delay.h``
+
+The :c:func:`udelay()` and :c:func:`ndelay()` functions can be
+used for small pauses. Do not use large values with them as you risk
+overflow - the helper function :c:func:`mdelay()` is useful here, or
+consider :c:func:`msleep()`.
+
+:c:func:`cpu_to_be32()`/:c:func:`be32_to_cpu()`/:c:func:`cpu_to_le32()`/:c:func:`le32_to_cpu()`
+-----------------------------------------------------------------------------------------------
+
+Defined in ``include/asm/byteorder.h``
+
+The :c:func:`cpu_to_be32()` family (where the "32" can be replaced
+by 64 or 16, and the "be" can be replaced by "le") are the general way
+to do endian conversions in the kernel: they return the converted value.
+All variations supply the reverse as well:
+:c:func:`be32_to_cpu()`, etc.
+
+There are two major variations of these functions: the pointer
+variation, such as :c:func:`cpu_to_be32p()`, which take a pointer
+to the given type, and return the converted value. The other variation
+is the "in-situ" family, such as :c:func:`cpu_to_be32s()`, which
+convert value referred to by the pointer, and return void.
+
+:c:func:`local_irq_save()`/:c:func:`local_irq_restore()`
+--------------------------------------------------------
+
+Defined in ``include/linux/irqflags.h``
+
+These routines disable hard interrupts on the local CPU, and restore
+them. They are reentrant; saving the previous state in their one
+``unsigned long flags`` argument. If you know that interrupts are
+enabled, you can simply use :c:func:`local_irq_disable()` and
+:c:func:`local_irq_enable()`.
+
+.. _local_bh_disable:
+
+:c:func:`local_bh_disable()`/:c:func:`local_bh_enable()`
+--------------------------------------------------------
+
+Defined in ``include/linux/bottom_half.h``
+
+
+These routines disable soft interrupts on the local CPU, and restore
+them. They are reentrant; if soft interrupts were disabled before, they
+will still be disabled after this pair of functions has been called.
+They prevent softirqs and tasklets from running on the current CPU.
+
+:c:func:`smp_processor_id()`
+----------------------------
+
+Defined in ``include/linux/smp.h``
+
+:c:func:`get_cpu()` disables preemption (so you won't suddenly get
+moved to another CPU) and returns the current processor number, between
+0 and ``NR_CPUS``. Note that the CPU numbers are not necessarily
+continuous. You return it again with :c:func:`put_cpu()` when you
+are done.
+
+If you know you cannot be preempted by another task (ie. you are in
+interrupt context, or have preemption disabled) you can use
+smp_processor_id().
+
+``__init``/``__exit``/``__initdata``
+------------------------------------
+
+Defined in ``include/linux/init.h``
+
+After boot, the kernel frees up a special section; functions marked with
+``__init`` and data structures marked with ``__initdata`` are dropped
+after boot is complete: similarly modules discard this memory after
+initialization. ``__exit`` is used to declare a function which is only
+required on exit: the function will be dropped if this file is not
+compiled as a module. See the header file for use. Note that it makes no
+sense for a function marked with ``__init`` to be exported to modules
+with :c:func:`EXPORT_SYMBOL()` or :c:func:`EXPORT_SYMBOL_GPL()`- this
+will break.
+
+:c:func:`__initcall()`/:c:func:`module_init()`
+----------------------------------------------
+
+Defined in ``include/linux/init.h`` / ``include/linux/module.h``
+
+Many parts of the kernel are well served as a module
+(dynamically-loadable parts of the kernel). Using the
+:c:func:`module_init()` and :c:func:`module_exit()` macros it
+is easy to write code without #ifdefs which can operate both as a module
+or built into the kernel.
+
+The :c:func:`module_init()` macro defines which function is to be
+called at module insertion time (if the file is compiled as a module),
+or at boot time: if the file is not compiled as a module the
+:c:func:`module_init()` macro becomes equivalent to
+:c:func:`__initcall()`, which through linker magic ensures that
+the function is called on boot.
+
+The function can return a negative error number to cause module loading
+to fail (unfortunately, this has no effect if the module is compiled
+into the kernel). This function is called in user context with
+interrupts enabled, so it can sleep.
+
+:c:func:`module_exit()`
+-----------------------
+
+
+Defined in ``include/linux/module.h``
+
+This macro defines the function to be called at module removal time (or
+never, in the case of the file compiled into the kernel). It will only
+be called if the module usage count has reached zero. This function can
+also sleep, but cannot fail: everything must be cleaned up by the time
+it returns.
+
+Note that this macro is optional: if it is not present, your module will
+not be removable (except for 'rmmod -f').
+
+:c:func:`try_module_get()`/:c:func:`module_put()`
+-------------------------------------------------
+
+Defined in ``include/linux/module.h``
+
+These manipulate the module usage count, to protect against removal (a
+module also can't be removed if another module uses one of its exported
+symbols: see below). Before calling into module code, you should call
+:c:func:`try_module_get()` on that module: if it fails, then the
+module is being removed and you should act as if it wasn't there.
+Otherwise, you can safely enter the module, and call
+:c:func:`module_put()` when you're finished.
+
+Most registerable structures have an owner field, such as in the
+:c:type:`struct file_operations <file_operations>` structure.
+Set this field to the macro ``THIS_MODULE``.
+
+Wait Queues ``include/linux/wait.h``
+====================================
+
+**[SLEEPS]**
+
+A wait queue is used to wait for someone to wake you up when a certain
+condition is true. They must be used carefully to ensure there is no
+race condition. You declare a :c:type:`wait_queue_head_t`, and then processes
+which want to wait for that condition declare a :c:type:`wait_queue_entry_t`
+referring to themselves, and place that in the queue.
+
+Declaring
+---------
+
+You declare a ``wait_queue_head_t`` using the
+:c:func:`DECLARE_WAIT_QUEUE_HEAD()` macro, or using the
+:c:func:`init_waitqueue_head()` routine in your initialization
+code.
+
+Queuing
+-------
+
+Placing yourself in the waitqueue is fairly complex, because you must
+put yourself in the queue before checking the condition. There is a
+macro to do this: :c:func:`wait_event_interruptible()`
+(``include/linux/wait.h``) The first argument is the wait queue head, and
+the second is an expression which is evaluated; the macro returns 0 when
+this expression is true, or ``-ERESTARTSYS`` if a signal is received. The
+:c:func:`wait_event()` version ignores signals.
+
+Waking Up Queued Tasks
+----------------------
+
+Call :c:func:`wake_up()` (``include/linux/wait.h``);, which will wake
+up every process in the queue. The exception is if one has
+``TASK_EXCLUSIVE`` set, in which case the remainder of the queue will
+not be woken. There are other variants of this basic function available
+in the same header.
+
+Atomic Operations
+=================
+
+Certain operations are guaranteed atomic on all platforms. The first
+class of operations work on :c:type:`atomic_t` (``include/asm/atomic.h``);
+this contains a signed integer (at least 32 bits long), and you must use
+these functions to manipulate or read :c:type:`atomic_t` variables.
+:c:func:`atomic_read()` and :c:func:`atomic_set()` get and set
+the counter, :c:func:`atomic_add()`, :c:func:`atomic_sub()`,
+:c:func:`atomic_inc()`, :c:func:`atomic_dec()`, and
+:c:func:`atomic_dec_and_test()` (returns true if it was
+decremented to zero).
+
+Yes. It returns true (i.e. != 0) if the atomic variable is zero.
+
+Note that these functions are slower than normal arithmetic, and so
+should not be used unnecessarily.
+
+The second class of atomic operations is atomic bit operations on an
+``unsigned long``, defined in ``include/linux/bitops.h``. These
+operations generally take a pointer to the bit pattern, and a bit
+number: 0 is the least significant bit. :c:func:`set_bit()`,
+:c:func:`clear_bit()` and :c:func:`change_bit()` set, clear,
+and flip the given bit. :c:func:`test_and_set_bit()`,
+:c:func:`test_and_clear_bit()` and
+:c:func:`test_and_change_bit()` do the same thing, except return
+true if the bit was previously set; these are particularly useful for
+atomically setting flags.
+
+It is possible to call these operations with bit indices greater than
+``BITS_PER_LONG``. The resulting behavior is strange on big-endian
+platforms though so it is a good idea not to do this.
+
+Symbols
+=======
+
+Within the kernel proper, the normal linking rules apply (ie. unless a
+symbol is declared to be file scope with the ``static`` keyword, it can
+be used anywhere in the kernel). However, for modules, a special
+exported symbol table is kept which limits the entry points to the
+kernel proper. Modules can also export symbols.
+
+:c:func:`EXPORT_SYMBOL()`
+-------------------------
+
+Defined in ``include/linux/export.h``
+
+This is the classic method of exporting a symbol: dynamically loaded
+modules will be able to use the symbol as normal.
+
+:c:func:`EXPORT_SYMBOL_GPL()`
+-----------------------------
+
+Defined in ``include/linux/export.h``
+
+Similar to :c:func:`EXPORT_SYMBOL()` except that the symbols
+exported by :c:func:`EXPORT_SYMBOL_GPL()` can only be seen by
+modules with a :c:func:`MODULE_LICENSE()` that specifies a GPL
+compatible license. It implies that the function is considered an
+internal implementation issue, and not really an interface. Some
+maintainers and developers may however require EXPORT_SYMBOL_GPL()
+when adding any new APIs or functionality.
+
+Routines and Conventions
+========================
+
+Double-linked lists ``include/linux/list.h``
+--------------------------------------------
+
+There used to be three sets of linked-list routines in the kernel
+headers, but this one is the winner. If you don't have some particular
+pressing need for a single list, it's a good choice.
+
+In particular, :c:func:`list_for_each_entry()` is useful.
+
+Return Conventions
+------------------
+
+For code called in user context, it's very common to defy C convention,
+and return 0 for success, and a negative error number (eg. ``-EFAULT``) for
+failure. This can be unintuitive at first, but it's fairly widespread in
+the kernel.
+
+Using :c:func:`ERR_PTR()` (``include/linux/err.h``) to encode a
+negative error number into a pointer, and :c:func:`IS_ERR()` and
+:c:func:`PTR_ERR()` to get it back out again: avoids a separate
+pointer parameter for the error number. Icky, but in a good way.
+
+Breaking Compilation
+--------------------
+
+Linus and the other developers sometimes change function or structure
+names in development kernels; this is not done just to keep everyone on
+their toes: it reflects a fundamental change (eg. can no longer be
+called with interrupts on, or does extra checks, or doesn't do checks
+which were caught before). Usually this is accompanied by a fairly
+complete note to the linux-kernel mailing list; search the archive.
+Simply doing a global replace on the file usually makes things **worse**.
+
+Initializing structure members
+------------------------------
+
+The preferred method of initializing structures is to use designated
+initialisers, as defined by ISO C99, eg::
+
+ static struct block_device_operations opt_fops = {
+ .open = opt_open,
+ .release = opt_release,
+ .ioctl = opt_ioctl,
+ .check_media_change = opt_media_change,
+ };
+
+
+This makes it easy to grep for, and makes it clear which structure
+fields are set. You should do this because it looks cool.
+
+GNU Extensions
+--------------
+
+GNU Extensions are explicitly allowed in the Linux kernel. Note that
+some of the more complex ones are not very well supported, due to lack
+of general use, but the following are considered standard (see the GCC
+info page section "C Extensions" for more details - Yes, really the info
+page, the man page is only a short summary of the stuff in info).
+
+- Inline functions
+
+- Statement expressions (ie. the ({ and }) constructs).
+
+- Declaring attributes of a function / variable / type
+ (__attribute__)
+
+- typeof
+
+- Zero length arrays
+
+- Macro varargs
+
+- Arithmetic on void pointers
+
+- Non-Constant initializers
+
+- Assembler Instructions (not outside arch/ and include/asm/)
+
+- Function names as strings (__func__).
+
+- __builtin_constant_p()
+
+Be wary when using long long in the kernel, the code gcc generates for
+it is horrible and worse: division and multiplication does not work on
+i386 because the GCC runtime functions for it are missing from the
+kernel environment.
+
+C++
+---
+
+Using C++ in the kernel is usually a bad idea, because the kernel does
+not provide the necessary runtime environment and the include files are
+not tested for it. It is still possible, but not recommended. If you
+really want to do this, forget about exceptions at least.
+
+NUMif
+-----
+
+It is generally considered cleaner to use macros in header files (or at
+the top of .c files) to abstract away functions rather than using \`#if'
+pre-processor statements throughout the source code.
+
+Putting Your Stuff in the Kernel
+================================
+
+In order to get your stuff into shape for official inclusion, or even to
+make a neat patch, there's administrative work to be done:
+
+- Figure out whose pond you've been pissing in. Look at the top of the
+ source files, inside the ``MAINTAINERS`` file, and last of all in the
+ ``CREDITS`` file. You should coordinate with this person to make sure
+ you're not duplicating effort, or trying something that's already
+ been rejected.
+
+ Make sure you put your name and EMail address at the top of any files
+ you create or mangle significantly. This is the first place people
+ will look when they find a bug, or when **they** want to make a change.
+
+- Usually you want a configuration option for your kernel hack. Edit
+ ``Kconfig`` in the appropriate directory. The Config language is
+ simple to use by cut and paste, and there's complete documentation in
+ ``Documentation/kbuild/kconfig-language.txt``.
+
+ In your description of the option, make sure you address both the
+ expert user and the user who knows nothing about your feature.
+ Mention incompatibilities and issues here. **Definitely** end your
+ description with “if in doubt, say N†(or, occasionally, \`Y'); this
+ is for people who have no idea what you are talking about.
+
+- Edit the ``Makefile``: the CONFIG variables are exported here so you
+ can usually just add a "obj-$(CONFIG_xxx) += xxx.o" line. The syntax
+ is documented in ``Documentation/kbuild/makefiles.txt``.
+
+- Put yourself in ``CREDITS`` if you've done something noteworthy,
+ usually beyond a single file (your name should be at the top of the
+ source files anyway). ``MAINTAINERS`` means you want to be consulted
+ when changes are made to a subsystem, and hear about bugs; it implies
+ a more-than-passing commitment to some part of the code.
+
+- Finally, don't forget to read
+ ``Documentation/process/submitting-patches.rst`` and possibly
+ ``Documentation/process/submitting-drivers.rst``.
+
+Kernel Cantrips
+===============
+
+Some favorites from browsing the source. Feel free to add to this list.
+
+``arch/x86/include/asm/delay.h``::
+
+ #define ndelay(n) (__builtin_constant_p(n) ? \
+ ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
+ __ndelay(n))
+
+
+``include/linux/fs.h``::
+
+ /*
+ * Kernel pointers have redundant information, so we can use a
+ * scheme where we can return either an error code or a dentry
+ * pointer with the same return value.
+ *
+ * This should be a per-architecture thing, to allow different
+ * error and pointer decisions.
+ */
+ #define ERR_PTR(err) ((void *)((long)(err)))
+ #define PTR_ERR(ptr) ((long)(ptr))
+ #define IS_ERR(ptr) ((unsigned long)(ptr) > (unsigned long)(-1000))
+
+``arch/x86/include/asm/uaccess_32.h:``::
+
+ #define copy_to_user(to,from,n) \
+ (__builtin_constant_p(n) ? \
+ __constant_copy_to_user((to),(from),(n)) : \
+ __generic_copy_to_user((to),(from),(n)))
+
+
+``arch/sparc/kernel/head.S:``::
+
+ /*
+ * Sun people can't spell worth damn. "compatability" indeed.
+ * At least we *know* we can't spell, and use a spell-checker.
+ */
+
+ /* Uh, actually Linus it is I who cannot spell. Too much murky
+ * Sparc assembly will do this to ya.
+ */
+ C_LABEL(cputypvar):
+ .asciz "compatibility"
+
+ /* Tested on SS-5, SS-10. Probably someone at Sun applied a spell-checker. */
+ .align 4
+ C_LABEL(cputypvar_sun4m):
+ .asciz "compatible"
+
+
+``arch/sparc/lib/checksum.S:``::
+
+ /* Sun, you just can't beat me, you just can't. Stop trying,
+ * give up. I'm serious, I am going to kick the living shit
+ * out of you, game over, lights out.
+ */
+
+
+Thanks
+======
+
+Thanks to Andi Kleen for the idea, answering my questions, fixing my
+mistakes, filling content, etc. Philipp Rumpf for more spelling and
+clarity fixes, and some excellent non-obvious points. Werner Almesberger
+for giving me a great summary of :c:func:`disable_irq()`, and Jes
+Sorensen and Andrea Arcangeli added caveats. Michael Elizabeth Chastain
+for checking and adding to the Configure section. Telsa Gwynne for
+teaching me DocBook.
diff --git a/Documentation/kernel-hacking/index.rst b/Documentation/kernel-hacking/index.rst
new file mode 100644
index 000000000000..fcb0eda3cca3
--- /dev/null
+++ b/Documentation/kernel-hacking/index.rst
@@ -0,0 +1,9 @@
+=====================
+Kernel Hacking Guides
+=====================
+
+.. toctree::
+ :maxdepth: 2
+
+ hacking
+ locking
diff --git a/Documentation/kernel-hacking/locking.rst b/Documentation/kernel-hacking/locking.rst
new file mode 100644
index 000000000000..f937c0fd11aa
--- /dev/null
+++ b/Documentation/kernel-hacking/locking.rst
@@ -0,0 +1,1446 @@
+===========================
+Unreliable Guide To Locking
+===========================
+
+:Author: Rusty Russell
+
+Introduction
+============
+
+Welcome, to Rusty's Remarkably Unreliable Guide to Kernel Locking
+issues. This document describes the locking systems in the Linux Kernel
+in 2.6.
+
+With the wide availability of HyperThreading, and preemption in the
+Linux Kernel, everyone hacking on the kernel needs to know the
+fundamentals of concurrency and locking for SMP.
+
+The Problem With Concurrency
+============================
+
+(Skip this if you know what a Race Condition is).
+
+In a normal program, you can increment a counter like so:
+
+::
+
+ very_important_count++;
+
+
+This is what they would expect to happen:
+
+
+.. table:: Expected Results
+
+ +------------------------------------+------------------------------------+
+ | Instance 1 | Instance 2 |
+ +====================================+====================================+
+ | read very_important_count (5) | |
+ +------------------------------------+------------------------------------+
+ | add 1 (6) | |
+ +------------------------------------+------------------------------------+
+ | write very_important_count (6) | |
+ +------------------------------------+------------------------------------+
+ | | read very_important_count (6) |
+ +------------------------------------+------------------------------------+
+ | | add 1 (7) |
+ +------------------------------------+------------------------------------+
+ | | write very_important_count (7) |
+ +------------------------------------+------------------------------------+
+
+This is what might happen:
+
+.. table:: Possible Results
+
+ +------------------------------------+------------------------------------+
+ | Instance 1 | Instance 2 |
+ +====================================+====================================+
+ | read very_important_count (5) | |
+ +------------------------------------+------------------------------------+
+ | | read very_important_count (5) |
+ +------------------------------------+------------------------------------+
+ | add 1 (6) | |
+ +------------------------------------+------------------------------------+
+ | | add 1 (6) |
+ +------------------------------------+------------------------------------+
+ | write very_important_count (6) | |
+ +------------------------------------+------------------------------------+
+ | | write very_important_count (6) |
+ +------------------------------------+------------------------------------+
+
+
+Race Conditions and Critical Regions
+------------------------------------
+
+This overlap, where the result depends on the relative timing of
+multiple tasks, is called a race condition. The piece of code containing
+the concurrency issue is called a critical region. And especially since
+Linux starting running on SMP machines, they became one of the major
+issues in kernel design and implementation.
+
+Preemption can have the same effect, even if there is only one CPU: by
+preempting one task during the critical region, we have exactly the same
+race condition. In this case the thread which preempts might run the
+critical region itself.
+
+The solution is to recognize when these simultaneous accesses occur, and
+use locks to make sure that only one instance can enter the critical
+region at any time. There are many friendly primitives in the Linux
+kernel to help you do this. And then there are the unfriendly
+primitives, but I'll pretend they don't exist.
+
+Locking in the Linux Kernel
+===========================
+
+If I could give you one piece of advice: never sleep with anyone crazier
+than yourself. But if I had to give you advice on locking: **keep it
+simple**.
+
+Be reluctant to introduce new locks.
+
+Strangely enough, this last one is the exact reverse of my advice when
+you **have** slept with someone crazier than yourself. And you should
+think about getting a big dog.
+
+Two Main Types of Kernel Locks: Spinlocks and Mutexes
+-----------------------------------------------------
+
+There are two main types of kernel locks. The fundamental type is the
+spinlock (``include/asm/spinlock.h``), which is a very simple
+single-holder lock: if you can't get the spinlock, you keep trying
+(spinning) until you can. Spinlocks are very small and fast, and can be
+used anywhere.
+
+The second type is a mutex (``include/linux/mutex.h``): it is like a
+spinlock, but you may block holding a mutex. If you can't lock a mutex,
+your task will suspend itself, and be woken up when the mutex is
+released. This means the CPU can do something else while you are
+waiting. There are many cases when you simply can't sleep (see
+`What Functions Are Safe To Call From Interrupts? <#sleeping-things>`__),
+and so have to use a spinlock instead.
+
+Neither type of lock is recursive: see
+`Deadlock: Simple and Advanced <#deadlock>`__.
+
+Locks and Uniprocessor Kernels
+------------------------------
+
+For kernels compiled without ``CONFIG_SMP``, and without
+``CONFIG_PREEMPT`` spinlocks do not exist at all. This is an excellent
+design decision: when no-one else can run at the same time, there is no
+reason to have a lock.
+
+If the kernel is compiled without ``CONFIG_SMP``, but ``CONFIG_PREEMPT``
+is set, then spinlocks simply disable preemption, which is sufficient to
+prevent any races. For most purposes, we can think of preemption as
+equivalent to SMP, and not worry about it separately.
+
+You should always test your locking code with ``CONFIG_SMP`` and
+``CONFIG_PREEMPT`` enabled, even if you don't have an SMP test box,
+because it will still catch some kinds of locking bugs.
+
+Mutexes still exist, because they are required for synchronization
+between user contexts, as we will see below.
+
+Locking Only In User Context
+----------------------------
+
+If you have a data structure which is only ever accessed from user
+context, then you can use a simple mutex (``include/linux/mutex.h``) to
+protect it. This is the most trivial case: you initialize the mutex.
+Then you can call :c:func:`mutex_lock_interruptible()` to grab the
+mutex, and :c:func:`mutex_unlock()` to release it. There is also a
+:c:func:`mutex_lock()`, which should be avoided, because it will
+not return if a signal is received.
+
+Example: ``net/netfilter/nf_sockopt.c`` allows registration of new
+:c:func:`setsockopt()` and :c:func:`getsockopt()` calls, with
+:c:func:`nf_register_sockopt()`. Registration and de-registration
+are only done on module load and unload (and boot time, where there is
+no concurrency), and the list of registrations is only consulted for an
+unknown :c:func:`setsockopt()` or :c:func:`getsockopt()` system
+call. The ``nf_sockopt_mutex`` is perfect to protect this, especially
+since the setsockopt and getsockopt calls may well sleep.
+
+Locking Between User Context and Softirqs
+-----------------------------------------
+
+If a softirq shares data with user context, you have two problems.
+Firstly, the current user context can be interrupted by a softirq, and
+secondly, the critical region could be entered from another CPU. This is
+where :c:func:`spin_lock_bh()` (``include/linux/spinlock.h``) is
+used. It disables softirqs on that CPU, then grabs the lock.
+:c:func:`spin_unlock_bh()` does the reverse. (The '_bh' suffix is
+a historical reference to "Bottom Halves", the old name for software
+interrupts. It should really be called spin_lock_softirq()' in a
+perfect world).
+
+Note that you can also use :c:func:`spin_lock_irq()` or
+:c:func:`spin_lock_irqsave()` here, which stop hardware interrupts
+as well: see `Hard IRQ Context <#hardirq-context>`__.
+
+This works perfectly for UP as well: the spin lock vanishes, and this
+macro simply becomes :c:func:`local_bh_disable()`
+(``include/linux/interrupt.h``), which protects you from the softirq
+being run.
+
+Locking Between User Context and Tasklets
+-----------------------------------------
+
+This is exactly the same as above, because tasklets are actually run
+from a softirq.
+
+Locking Between User Context and Timers
+---------------------------------------
+
+This, too, is exactly the same as above, because timers are actually run
+from a softirq. From a locking point of view, tasklets and timers are
+identical.
+
+Locking Between Tasklets/Timers
+-------------------------------
+
+Sometimes a tasklet or timer might want to share data with another
+tasklet or timer.
+
+The Same Tasklet/Timer
+~~~~~~~~~~~~~~~~~~~~~~
+
+Since a tasklet is never run on two CPUs at once, you don't need to
+worry about your tasklet being reentrant (running twice at once), even
+on SMP.
+
+Different Tasklets/Timers
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+If another tasklet/timer wants to share data with your tasklet or timer
+, you will both need to use :c:func:`spin_lock()` and
+:c:func:`spin_unlock()` calls. :c:func:`spin_lock_bh()` is
+unnecessary here, as you are already in a tasklet, and none will be run
+on the same CPU.
+
+Locking Between Softirqs
+------------------------
+
+Often a softirq might want to share data with itself or a tasklet/timer.
+
+The Same Softirq
+~~~~~~~~~~~~~~~~
+
+The same softirq can run on the other CPUs: you can use a per-CPU array
+(see `Per-CPU Data <#per-cpu>`__) for better performance. If you're
+going so far as to use a softirq, you probably care about scalable
+performance enough to justify the extra complexity.
+
+You'll need to use :c:func:`spin_lock()` and
+:c:func:`spin_unlock()` for shared data.
+
+Different Softirqs
+~~~~~~~~~~~~~~~~~~
+
+You'll need to use :c:func:`spin_lock()` and
+:c:func:`spin_unlock()` for shared data, whether it be a timer,
+tasklet, different softirq or the same or another softirq: any of them
+could be running on a different CPU.
+
+Hard IRQ Context
+================
+
+Hardware interrupts usually communicate with a tasklet or softirq.
+Frequently this involves putting work in a queue, which the softirq will
+take out.
+
+Locking Between Hard IRQ and Softirqs/Tasklets
+----------------------------------------------
+
+If a hardware irq handler shares data with a softirq, you have two
+concerns. Firstly, the softirq processing can be interrupted by a
+hardware interrupt, and secondly, the critical region could be entered
+by a hardware interrupt on another CPU. This is where
+:c:func:`spin_lock_irq()` is used. It is defined to disable
+interrupts on that cpu, then grab the lock.
+:c:func:`spin_unlock_irq()` does the reverse.
+
+The irq handler does not to use :c:func:`spin_lock_irq()`, because
+the softirq cannot run while the irq handler is running: it can use
+:c:func:`spin_lock()`, which is slightly faster. The only exception
+would be if a different hardware irq handler uses the same lock:
+:c:func:`spin_lock_irq()` will stop that from interrupting us.
+
+This works perfectly for UP as well: the spin lock vanishes, and this
+macro simply becomes :c:func:`local_irq_disable()`
+(``include/asm/smp.h``), which protects you from the softirq/tasklet/BH
+being run.
+
+:c:func:`spin_lock_irqsave()` (``include/linux/spinlock.h``) is a
+variant which saves whether interrupts were on or off in a flags word,
+which is passed to :c:func:`spin_unlock_irqrestore()`. This means
+that the same code can be used inside an hard irq handler (where
+interrupts are already off) and in softirqs (where the irq disabling is
+required).
+
+Note that softirqs (and hence tasklets and timers) are run on return
+from hardware interrupts, so :c:func:`spin_lock_irq()` also stops
+these. In that sense, :c:func:`spin_lock_irqsave()` is the most
+general and powerful locking function.
+
+Locking Between Two Hard IRQ Handlers
+-------------------------------------
+
+It is rare to have to share data between two IRQ handlers, but if you
+do, :c:func:`spin_lock_irqsave()` should be used: it is
+architecture-specific whether all interrupts are disabled inside irq
+handlers themselves.
+
+Cheat Sheet For Locking
+=======================
+
+Pete Zaitcev gives the following summary:
+
+- If you are in a process context (any syscall) and want to lock other
+ process out, use a mutex. You can take a mutex and sleep
+ (``copy_from_user*(`` or ``kmalloc(x,GFP_KERNEL)``).
+
+- Otherwise (== data can be touched in an interrupt), use
+ :c:func:`spin_lock_irqsave()` and
+ :c:func:`spin_unlock_irqrestore()`.
+
+- Avoid holding spinlock for more than 5 lines of code and across any
+ function call (except accessors like :c:func:`readb()`).
+
+Table of Minimum Requirements
+-----------------------------
+
+The following table lists the **minimum** locking requirements between
+various contexts. In some cases, the same context can only be running on
+one CPU at a time, so no locking is required for that context (eg. a
+particular thread can only run on one CPU at a time, but if it needs
+shares data with another thread, locking is required).
+
+Remember the advice above: you can always use
+:c:func:`spin_lock_irqsave()`, which is a superset of all other
+spinlock primitives.
+
+============== ============= ============= ========= ========= ========= ========= ======= ======= ============== ==============
+. IRQ Handler A IRQ Handler B Softirq A Softirq B Tasklet A Tasklet B Timer A Timer B User Context A User Context B
+============== ============= ============= ========= ========= ========= ========= ======= ======= ============== ==============
+IRQ Handler A None
+IRQ Handler B SLIS None
+Softirq A SLI SLI SL
+Softirq B SLI SLI SL SL
+Tasklet A SLI SLI SL SL None
+Tasklet B SLI SLI SL SL SL None
+Timer A SLI SLI SL SL SL SL None
+Timer B SLI SLI SL SL SL SL SL None
+User Context A SLI SLI SLBH SLBH SLBH SLBH SLBH SLBH None
+User Context B SLI SLI SLBH SLBH SLBH SLBH SLBH SLBH MLI None
+============== ============= ============= ========= ========= ========= ========= ======= ======= ============== ==============
+
+Table: Table of Locking Requirements
+
++--------+----------------------------+
+| SLIS | spin_lock_irqsave |
++--------+----------------------------+
+| SLI | spin_lock_irq |
++--------+----------------------------+
+| SL | spin_lock |
++--------+----------------------------+
+| SLBH | spin_lock_bh |
++--------+----------------------------+
+| MLI | mutex_lock_interruptible |
++--------+----------------------------+
+
+Table: Legend for Locking Requirements Table
+
+The trylock Functions
+=====================
+
+There are functions that try to acquire a lock only once and immediately
+return a value telling about success or failure to acquire the lock.
+They can be used if you need no access to the data protected with the
+lock when some other thread is holding the lock. You should acquire the
+lock later if you then need access to the data protected with the lock.
+
+:c:func:`spin_trylock()` does not spin but returns non-zero if it
+acquires the spinlock on the first try or 0 if not. This function can be
+used in all contexts like :c:func:`spin_lock()`: you must have
+disabled the contexts that might interrupt you and acquire the spin
+lock.
+
+:c:func:`mutex_trylock()` does not suspend your task but returns
+non-zero if it could lock the mutex on the first try or 0 if not. This
+function cannot be safely used in hardware or software interrupt
+contexts despite not sleeping.
+
+Common Examples
+===============
+
+Let's step through a simple example: a cache of number to name mappings.
+The cache keeps a count of how often each of the objects is used, and
+when it gets full, throws out the least used one.
+
+All In User Context
+-------------------
+
+For our first example, we assume that all operations are in user context
+(ie. from system calls), so we can sleep. This means we can use a mutex
+to protect the cache and all the objects within it. Here's the code::
+
+ #include <linux/list.h>
+ #include <linux/slab.h>
+ #include <linux/string.h>
+ #include <linux/mutex.h>
+ #include <asm/errno.h>
+
+ struct object
+ {
+ struct list_head list;
+ int id;
+ char name[32];
+ int popularity;
+ };
+
+ /* Protects the cache, cache_num, and the objects within it */
+ static DEFINE_MUTEX(cache_lock);
+ static LIST_HEAD(cache);
+ static unsigned int cache_num = 0;
+ #define MAX_CACHE_SIZE 10
+
+ /* Must be holding cache_lock */
+ static struct object *__cache_find(int id)
+ {
+ struct object *i;
+
+ list_for_each_entry(i, &cache, list)
+ if (i->id == id) {
+ i->popularity++;
+ return i;
+ }
+ return NULL;
+ }
+
+ /* Must be holding cache_lock */
+ static void __cache_delete(struct object *obj)
+ {
+ BUG_ON(!obj);
+ list_del(&obj->list);
+ kfree(obj);
+ cache_num--;
+ }
+
+ /* Must be holding cache_lock */
+ static void __cache_add(struct object *obj)
+ {
+ list_add(&obj->list, &cache);
+ if (++cache_num > MAX_CACHE_SIZE) {
+ struct object *i, *outcast = NULL;
+ list_for_each_entry(i, &cache, list) {
+ if (!outcast || i->popularity < outcast->popularity)
+ outcast = i;
+ }
+ __cache_delete(outcast);
+ }
+ }
+
+ int cache_add(int id, const char *name)
+ {
+ struct object *obj;
+
+ if ((obj = kmalloc(sizeof(*obj), GFP_KERNEL)) == NULL)
+ return -ENOMEM;
+
+ strlcpy(obj->name, name, sizeof(obj->name));
+ obj->id = id;
+ obj->popularity = 0;
+
+ mutex_lock(&cache_lock);
+ __cache_add(obj);
+ mutex_unlock(&cache_lock);
+ return 0;
+ }
+
+ void cache_delete(int id)
+ {
+ mutex_lock(&cache_lock);
+ __cache_delete(__cache_find(id));
+ mutex_unlock(&cache_lock);
+ }
+
+ int cache_find(int id, char *name)
+ {
+ struct object *obj;
+ int ret = -ENOENT;
+
+ mutex_lock(&cache_lock);
+ obj = __cache_find(id);
+ if (obj) {
+ ret = 0;
+ strcpy(name, obj->name);
+ }
+ mutex_unlock(&cache_lock);
+ return ret;
+ }
+
+Note that we always make sure we have the cache_lock when we add,
+delete, or look up the cache: both the cache infrastructure itself and
+the contents of the objects are protected by the lock. In this case it's
+easy, since we copy the data for the user, and never let them access the
+objects directly.
+
+There is a slight (and common) optimization here: in
+:c:func:`cache_add()` we set up the fields of the object before
+grabbing the lock. This is safe, as no-one else can access it until we
+put it in cache.
+
+Accessing From Interrupt Context
+--------------------------------
+
+Now consider the case where :c:func:`cache_find()` can be called
+from interrupt context: either a hardware interrupt or a softirq. An
+example would be a timer which deletes object from the cache.
+
+The change is shown below, in standard patch format: the ``-`` are lines
+which are taken away, and the ``+`` are lines which are added.
+
+::
+
+ --- cache.c.usercontext 2003-12-09 13:58:54.000000000 +1100
+ +++ cache.c.interrupt 2003-12-09 14:07:49.000000000 +1100
+ @@ -12,7 +12,7 @@
+ int popularity;
+ };
+
+ -static DEFINE_MUTEX(cache_lock);
+ +static DEFINE_SPINLOCK(cache_lock);
+ static LIST_HEAD(cache);
+ static unsigned int cache_num = 0;
+ #define MAX_CACHE_SIZE 10
+ @@ -55,6 +55,7 @@
+ int cache_add(int id, const char *name)
+ {
+ struct object *obj;
+ + unsigned long flags;
+
+ if ((obj = kmalloc(sizeof(*obj), GFP_KERNEL)) == NULL)
+ return -ENOMEM;
+ @@ -63,30 +64,33 @@
+ obj->id = id;
+ obj->popularity = 0;
+
+ - mutex_lock(&cache_lock);
+ + spin_lock_irqsave(&cache_lock, flags);
+ __cache_add(obj);
+ - mutex_unlock(&cache_lock);
+ + spin_unlock_irqrestore(&cache_lock, flags);
+ return 0;
+ }
+
+ void cache_delete(int id)
+ {
+ - mutex_lock(&cache_lock);
+ + unsigned long flags;
+ +
+ + spin_lock_irqsave(&cache_lock, flags);
+ __cache_delete(__cache_find(id));
+ - mutex_unlock(&cache_lock);
+ + spin_unlock_irqrestore(&cache_lock, flags);
+ }
+
+ int cache_find(int id, char *name)
+ {
+ struct object *obj;
+ int ret = -ENOENT;
+ + unsigned long flags;
+
+ - mutex_lock(&cache_lock);
+ + spin_lock_irqsave(&cache_lock, flags);
+ obj = __cache_find(id);
+ if (obj) {
+ ret = 0;
+ strcpy(name, obj->name);
+ }
+ - mutex_unlock(&cache_lock);
+ + spin_unlock_irqrestore(&cache_lock, flags);
+ return ret;
+ }
+
+Note that the :c:func:`spin_lock_irqsave()` will turn off
+interrupts if they are on, otherwise does nothing (if we are already in
+an interrupt handler), hence these functions are safe to call from any
+context.
+
+Unfortunately, :c:func:`cache_add()` calls :c:func:`kmalloc()`
+with the ``GFP_KERNEL`` flag, which is only legal in user context. I
+have assumed that :c:func:`cache_add()` is still only called in
+user context, otherwise this should become a parameter to
+:c:func:`cache_add()`.
+
+Exposing Objects Outside This File
+----------------------------------
+
+If our objects contained more information, it might not be sufficient to
+copy the information in and out: other parts of the code might want to
+keep pointers to these objects, for example, rather than looking up the
+id every time. This produces two problems.
+
+The first problem is that we use the ``cache_lock`` to protect objects:
+we'd need to make this non-static so the rest of the code can use it.
+This makes locking trickier, as it is no longer all in one place.
+
+The second problem is the lifetime problem: if another structure keeps a
+pointer to an object, it presumably expects that pointer to remain
+valid. Unfortunately, this is only guaranteed while you hold the lock,
+otherwise someone might call :c:func:`cache_delete()` and even
+worse, add another object, re-using the same address.
+
+As there is only one lock, you can't hold it forever: no-one else would
+get any work done.
+
+The solution to this problem is to use a reference count: everyone who
+has a pointer to the object increases it when they first get the object,
+and drops the reference count when they're finished with it. Whoever
+drops it to zero knows it is unused, and can actually delete it.
+
+Here is the code::
+
+ --- cache.c.interrupt 2003-12-09 14:25:43.000000000 +1100
+ +++ cache.c.refcnt 2003-12-09 14:33:05.000000000 +1100
+ @@ -7,6 +7,7 @@
+ struct object
+ {
+ struct list_head list;
+ + unsigned int refcnt;
+ int id;
+ char name[32];
+ int popularity;
+ @@ -17,6 +18,35 @@
+ static unsigned int cache_num = 0;
+ #define MAX_CACHE_SIZE 10
+
+ +static void __object_put(struct object *obj)
+ +{
+ + if (--obj->refcnt == 0)
+ + kfree(obj);
+ +}
+ +
+ +static void __object_get(struct object *obj)
+ +{
+ + obj->refcnt++;
+ +}
+ +
+ +void object_put(struct object *obj)
+ +{
+ + unsigned long flags;
+ +
+ + spin_lock_irqsave(&cache_lock, flags);
+ + __object_put(obj);
+ + spin_unlock_irqrestore(&cache_lock, flags);
+ +}
+ +
+ +void object_get(struct object *obj)
+ +{
+ + unsigned long flags;
+ +
+ + spin_lock_irqsave(&cache_lock, flags);
+ + __object_get(obj);
+ + spin_unlock_irqrestore(&cache_lock, flags);
+ +}
+ +
+ /* Must be holding cache_lock */
+ static struct object *__cache_find(int id)
+ {
+ @@ -35,6 +65,7 @@
+ {
+ BUG_ON(!obj);
+ list_del(&obj->list);
+ + __object_put(obj);
+ cache_num--;
+ }
+
+ @@ -63,6 +94,7 @@
+ strlcpy(obj->name, name, sizeof(obj->name));
+ obj->id = id;
+ obj->popularity = 0;
+ + obj->refcnt = 1; /* The cache holds a reference */
+
+ spin_lock_irqsave(&cache_lock, flags);
+ __cache_add(obj);
+ @@ -79,18 +111,15 @@
+ spin_unlock_irqrestore(&cache_lock, flags);
+ }
+
+ -int cache_find(int id, char *name)
+ +struct object *cache_find(int id)
+ {
+ struct object *obj;
+ - int ret = -ENOENT;
+ unsigned long flags;
+
+ spin_lock_irqsave(&cache_lock, flags);
+ obj = __cache_find(id);
+ - if (obj) {
+ - ret = 0;
+ - strcpy(name, obj->name);
+ - }
+ + if (obj)
+ + __object_get(obj);
+ spin_unlock_irqrestore(&cache_lock, flags);
+ - return ret;
+ + return obj;
+ }
+
+We encapsulate the reference counting in the standard 'get' and 'put'
+functions. Now we can return the object itself from
+:c:func:`cache_find()` which has the advantage that the user can
+now sleep holding the object (eg. to :c:func:`copy_to_user()` to
+name to userspace).
+
+The other point to note is that I said a reference should be held for
+every pointer to the object: thus the reference count is 1 when first
+inserted into the cache. In some versions the framework does not hold a
+reference count, but they are more complicated.
+
+Using Atomic Operations For The Reference Count
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+In practice, :c:type:`atomic_t` would usually be used for refcnt. There are a
+number of atomic operations defined in ``include/asm/atomic.h``: these
+are guaranteed to be seen atomically from all CPUs in the system, so no
+lock is required. In this case, it is simpler than using spinlocks,
+although for anything non-trivial using spinlocks is clearer. The
+:c:func:`atomic_inc()` and :c:func:`atomic_dec_and_test()`
+are used instead of the standard increment and decrement operators, and
+the lock is no longer used to protect the reference count itself.
+
+::
+
+ --- cache.c.refcnt 2003-12-09 15:00:35.000000000 +1100
+ +++ cache.c.refcnt-atomic 2003-12-11 15:49:42.000000000 +1100
+ @@ -7,7 +7,7 @@
+ struct object
+ {
+ struct list_head list;
+ - unsigned int refcnt;
+ + atomic_t refcnt;
+ int id;
+ char name[32];
+ int popularity;
+ @@ -18,33 +18,15 @@
+ static unsigned int cache_num = 0;
+ #define MAX_CACHE_SIZE 10
+
+ -static void __object_put(struct object *obj)
+ -{
+ - if (--obj->refcnt == 0)
+ - kfree(obj);
+ -}
+ -
+ -static void __object_get(struct object *obj)
+ -{
+ - obj->refcnt++;
+ -}
+ -
+ void object_put(struct object *obj)
+ {
+ - unsigned long flags;
+ -
+ - spin_lock_irqsave(&cache_lock, flags);
+ - __object_put(obj);
+ - spin_unlock_irqrestore(&cache_lock, flags);
+ + if (atomic_dec_and_test(&obj->refcnt))
+ + kfree(obj);
+ }
+
+ void object_get(struct object *obj)
+ {
+ - unsigned long flags;
+ -
+ - spin_lock_irqsave(&cache_lock, flags);
+ - __object_get(obj);
+ - spin_unlock_irqrestore(&cache_lock, flags);
+ + atomic_inc(&obj->refcnt);
+ }
+
+ /* Must be holding cache_lock */
+ @@ -65,7 +47,7 @@
+ {
+ BUG_ON(!obj);
+ list_del(&obj->list);
+ - __object_put(obj);
+ + object_put(obj);
+ cache_num--;
+ }
+
+ @@ -94,7 +76,7 @@
+ strlcpy(obj->name, name, sizeof(obj->name));
+ obj->id = id;
+ obj->popularity = 0;
+ - obj->refcnt = 1; /* The cache holds a reference */
+ + atomic_set(&obj->refcnt, 1); /* The cache holds a reference */
+
+ spin_lock_irqsave(&cache_lock, flags);
+ __cache_add(obj);
+ @@ -119,7 +101,7 @@
+ spin_lock_irqsave(&cache_lock, flags);
+ obj = __cache_find(id);
+ if (obj)
+ - __object_get(obj);
+ + object_get(obj);
+ spin_unlock_irqrestore(&cache_lock, flags);
+ return obj;
+ }
+
+Protecting The Objects Themselves
+---------------------------------
+
+In these examples, we assumed that the objects (except the reference
+counts) never changed once they are created. If we wanted to allow the
+name to change, there are three possibilities:
+
+- You can make ``cache_lock`` non-static, and tell people to grab that
+ lock before changing the name in any object.
+
+- You can provide a :c:func:`cache_obj_rename()` which grabs this
+ lock and changes the name for the caller, and tell everyone to use
+ that function.
+
+- You can make the ``cache_lock`` protect only the cache itself, and
+ use another lock to protect the name.
+
+Theoretically, you can make the locks as fine-grained as one lock for
+every field, for every object. In practice, the most common variants
+are:
+
+- One lock which protects the infrastructure (the ``cache`` list in
+ this example) and all the objects. This is what we have done so far.
+
+- One lock which protects the infrastructure (including the list
+ pointers inside the objects), and one lock inside the object which
+ protects the rest of that object.
+
+- Multiple locks to protect the infrastructure (eg. one lock per hash
+ chain), possibly with a separate per-object lock.
+
+Here is the "lock-per-object" implementation:
+
+::
+
+ --- cache.c.refcnt-atomic 2003-12-11 15:50:54.000000000 +1100
+ +++ cache.c.perobjectlock 2003-12-11 17:15:03.000000000 +1100
+ @@ -6,11 +6,17 @@
+
+ struct object
+ {
+ + /* These two protected by cache_lock. */
+ struct list_head list;
+ + int popularity;
+ +
+ atomic_t refcnt;
+ +
+ + /* Doesn't change once created. */
+ int id;
+ +
+ + spinlock_t lock; /* Protects the name */
+ char name[32];
+ - int popularity;
+ };
+
+ static DEFINE_SPINLOCK(cache_lock);
+ @@ -77,6 +84,7 @@
+ obj->id = id;
+ obj->popularity = 0;
+ atomic_set(&obj->refcnt, 1); /* The cache holds a reference */
+ + spin_lock_init(&obj->lock);
+
+ spin_lock_irqsave(&cache_lock, flags);
+ __cache_add(obj);
+
+Note that I decide that the popularity count should be protected by the
+``cache_lock`` rather than the per-object lock: this is because it (like
+the :c:type:`struct list_head <list_head>` inside the object)
+is logically part of the infrastructure. This way, I don't need to grab
+the lock of every object in :c:func:`__cache_add()` when seeking
+the least popular.
+
+I also decided that the id member is unchangeable, so I don't need to
+grab each object lock in :c:func:`__cache_find()` to examine the
+id: the object lock is only used by a caller who wants to read or write
+the name field.
+
+Note also that I added a comment describing what data was protected by
+which locks. This is extremely important, as it describes the runtime
+behavior of the code, and can be hard to gain from just reading. And as
+Alan Cox says, “Lock data, not codeâ€.
+
+Common Problems
+===============
+
+Deadlock: Simple and Advanced
+-----------------------------
+
+There is a coding bug where a piece of code tries to grab a spinlock
+twice: it will spin forever, waiting for the lock to be released
+(spinlocks, rwlocks and mutexes are not recursive in Linux). This is
+trivial to diagnose: not a
+stay-up-five-nights-talk-to-fluffy-code-bunnies kind of problem.
+
+For a slightly more complex case, imagine you have a region shared by a
+softirq and user context. If you use a :c:func:`spin_lock()` call
+to protect it, it is possible that the user context will be interrupted
+by the softirq while it holds the lock, and the softirq will then spin
+forever trying to get the same lock.
+
+Both of these are called deadlock, and as shown above, it can occur even
+with a single CPU (although not on UP compiles, since spinlocks vanish
+on kernel compiles with ``CONFIG_SMP``\ =n. You'll still get data
+corruption in the second example).
+
+This complete lockup is easy to diagnose: on SMP boxes the watchdog
+timer or compiling with ``DEBUG_SPINLOCK`` set
+(``include/linux/spinlock.h``) will show this up immediately when it
+happens.
+
+A more complex problem is the so-called 'deadly embrace', involving two
+or more locks. Say you have a hash table: each entry in the table is a
+spinlock, and a chain of hashed objects. Inside a softirq handler, you
+sometimes want to alter an object from one place in the hash to another:
+you grab the spinlock of the old hash chain and the spinlock of the new
+hash chain, and delete the object from the old one, and insert it in the
+new one.
+
+There are two problems here. First, if your code ever tries to move the
+object to the same chain, it will deadlock with itself as it tries to
+lock it twice. Secondly, if the same softirq on another CPU is trying to
+move another object in the reverse direction, the following could
+happen:
+
++-----------------------+-----------------------+
+| CPU 1 | CPU 2 |
++=======================+=======================+
+| Grab lock A -> OK | Grab lock B -> OK |
++-----------------------+-----------------------+
+| Grab lock B -> spin | Grab lock A -> spin |
++-----------------------+-----------------------+
+
+Table: Consequences
+
+The two CPUs will spin forever, waiting for the other to give up their
+lock. It will look, smell, and feel like a crash.
+
+Preventing Deadlock
+-------------------
+
+Textbooks will tell you that if you always lock in the same order, you
+will never get this kind of deadlock. Practice will tell you that this
+approach doesn't scale: when I create a new lock, I don't understand
+enough of the kernel to figure out where in the 5000 lock hierarchy it
+will fit.
+
+The best locks are encapsulated: they never get exposed in headers, and
+are never held around calls to non-trivial functions outside the same
+file. You can read through this code and see that it will never
+deadlock, because it never tries to grab another lock while it has that
+one. People using your code don't even need to know you are using a
+lock.
+
+A classic problem here is when you provide callbacks or hooks: if you
+call these with the lock held, you risk simple deadlock, or a deadly
+embrace (who knows what the callback will do?). Remember, the other
+programmers are out to get you, so don't do this.
+
+Overzealous Prevention Of Deadlocks
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Deadlocks are problematic, but not as bad as data corruption. Code which
+grabs a read lock, searches a list, fails to find what it wants, drops
+the read lock, grabs a write lock and inserts the object has a race
+condition.
+
+If you don't see why, please stay the fuck away from my code.
+
+Racing Timers: A Kernel Pastime
+-------------------------------
+
+Timers can produce their own special problems with races. Consider a
+collection of objects (list, hash, etc) where each object has a timer
+which is due to destroy it.
+
+If you want to destroy the entire collection (say on module removal),
+you might do the following::
+
+ /* THIS CODE BAD BAD BAD BAD: IF IT WAS ANY WORSE IT WOULD USE
+ HUNGARIAN NOTATION */
+ spin_lock_bh(&list_lock);
+
+ while (list) {
+ struct foo *next = list->next;
+ del_timer(&list->timer);
+ kfree(list);
+ list = next;
+ }
+
+ spin_unlock_bh(&list_lock);
+
+
+Sooner or later, this will crash on SMP, because a timer can have just
+gone off before the :c:func:`spin_lock_bh()`, and it will only get
+the lock after we :c:func:`spin_unlock_bh()`, and then try to free
+the element (which has already been freed!).
+
+This can be avoided by checking the result of
+:c:func:`del_timer()`: if it returns 1, the timer has been deleted.
+If 0, it means (in this case) that it is currently running, so we can
+do::
+
+ retry:
+ spin_lock_bh(&list_lock);
+
+ while (list) {
+ struct foo *next = list->next;
+ if (!del_timer(&list->timer)) {
+ /* Give timer a chance to delete this */
+ spin_unlock_bh(&list_lock);
+ goto retry;
+ }
+ kfree(list);
+ list = next;
+ }
+
+ spin_unlock_bh(&list_lock);
+
+
+Another common problem is deleting timers which restart themselves (by
+calling :c:func:`add_timer()` at the end of their timer function).
+Because this is a fairly common case which is prone to races, you should
+use :c:func:`del_timer_sync()` (``include/linux/timer.h``) to
+handle this case. It returns the number of times the timer had to be
+deleted before we finally stopped it from adding itself back in.
+
+Locking Speed
+=============
+
+There are three main things to worry about when considering speed of
+some code which does locking. First is concurrency: how many things are
+going to be waiting while someone else is holding a lock. Second is the
+time taken to actually acquire and release an uncontended lock. Third is
+using fewer, or smarter locks. I'm assuming that the lock is used fairly
+often: otherwise, you wouldn't be concerned about efficiency.
+
+Concurrency depends on how long the lock is usually held: you should
+hold the lock for as long as needed, but no longer. In the cache
+example, we always create the object without the lock held, and then
+grab the lock only when we are ready to insert it in the list.
+
+Acquisition times depend on how much damage the lock operations do to
+the pipeline (pipeline stalls) and how likely it is that this CPU was
+the last one to grab the lock (ie. is the lock cache-hot for this CPU):
+on a machine with more CPUs, this likelihood drops fast. Consider a
+700MHz Intel Pentium III: an instruction takes about 0.7ns, an atomic
+increment takes about 58ns, a lock which is cache-hot on this CPU takes
+160ns, and a cacheline transfer from another CPU takes an additional 170
+to 360ns. (These figures from Paul McKenney's `Linux Journal RCU
+article <http://www.linuxjournal.com/article.php?sid=6993>`__).
+
+These two aims conflict: holding a lock for a short time might be done
+by splitting locks into parts (such as in our final per-object-lock
+example), but this increases the number of lock acquisitions, and the
+results are often slower than having a single lock. This is another
+reason to advocate locking simplicity.
+
+The third concern is addressed below: there are some methods to reduce
+the amount of locking which needs to be done.
+
+Read/Write Lock Variants
+------------------------
+
+Both spinlocks and mutexes have read/write variants: ``rwlock_t`` and
+:c:type:`struct rw_semaphore <rw_semaphore>`. These divide
+users into two classes: the readers and the writers. If you are only
+reading the data, you can get a read lock, but to write to the data you
+need the write lock. Many people can hold a read lock, but a writer must
+be sole holder.
+
+If your code divides neatly along reader/writer lines (as our cache code
+does), and the lock is held by readers for significant lengths of time,
+using these locks can help. They are slightly slower than the normal
+locks though, so in practice ``rwlock_t`` is not usually worthwhile.
+
+Avoiding Locks: Read Copy Update
+--------------------------------
+
+There is a special method of read/write locking called Read Copy Update.
+Using RCU, the readers can avoid taking a lock altogether: as we expect
+our cache to be read more often than updated (otherwise the cache is a
+waste of time), it is a candidate for this optimization.
+
+How do we get rid of read locks? Getting rid of read locks means that
+writers may be changing the list underneath the readers. That is
+actually quite simple: we can read a linked list while an element is
+being added if the writer adds the element very carefully. For example,
+adding ``new`` to a single linked list called ``list``::
+
+ new->next = list->next;
+ wmb();
+ list->next = new;
+
+
+The :c:func:`wmb()` is a write memory barrier. It ensures that the
+first operation (setting the new element's ``next`` pointer) is complete
+and will be seen by all CPUs, before the second operation is (putting
+the new element into the list). This is important, since modern
+compilers and modern CPUs can both reorder instructions unless told
+otherwise: we want a reader to either not see the new element at all, or
+see the new element with the ``next`` pointer correctly pointing at the
+rest of the list.
+
+Fortunately, there is a function to do this for standard
+:c:type:`struct list_head <list_head>` lists:
+:c:func:`list_add_rcu()` (``include/linux/list.h``).
+
+Removing an element from the list is even simpler: we replace the
+pointer to the old element with a pointer to its successor, and readers
+will either see it, or skip over it.
+
+::
+
+ list->next = old->next;
+
+
+There is :c:func:`list_del_rcu()` (``include/linux/list.h``) which
+does this (the normal version poisons the old object, which we don't
+want).
+
+The reader must also be careful: some CPUs can look through the ``next``
+pointer to start reading the contents of the next element early, but
+don't realize that the pre-fetched contents is wrong when the ``next``
+pointer changes underneath them. Once again, there is a
+:c:func:`list_for_each_entry_rcu()` (``include/linux/list.h``)
+to help you. Of course, writers can just use
+:c:func:`list_for_each_entry()`, since there cannot be two
+simultaneous writers.
+
+Our final dilemma is this: when can we actually destroy the removed
+element? Remember, a reader might be stepping through this element in
+the list right now: if we free this element and the ``next`` pointer
+changes, the reader will jump off into garbage and crash. We need to
+wait until we know that all the readers who were traversing the list
+when we deleted the element are finished. We use
+:c:func:`call_rcu()` to register a callback which will actually
+destroy the object once all pre-existing readers are finished.
+Alternatively, :c:func:`synchronize_rcu()` may be used to block
+until all pre-existing are finished.
+
+But how does Read Copy Update know when the readers are finished? The
+method is this: firstly, the readers always traverse the list inside
+:c:func:`rcu_read_lock()`/:c:func:`rcu_read_unlock()` pairs:
+these simply disable preemption so the reader won't go to sleep while
+reading the list.
+
+RCU then waits until every other CPU has slept at least once: since
+readers cannot sleep, we know that any readers which were traversing the
+list during the deletion are finished, and the callback is triggered.
+The real Read Copy Update code is a little more optimized than this, but
+this is the fundamental idea.
+
+::
+
+ --- cache.c.perobjectlock 2003-12-11 17:15:03.000000000 +1100
+ +++ cache.c.rcupdate 2003-12-11 17:55:14.000000000 +1100
+ @@ -1,15 +1,18 @@
+ #include <linux/list.h>
+ #include <linux/slab.h>
+ #include <linux/string.h>
+ +#include <linux/rcupdate.h>
+ #include <linux/mutex.h>
+ #include <asm/errno.h>
+
+ struct object
+ {
+ - /* These two protected by cache_lock. */
+ + /* This is protected by RCU */
+ struct list_head list;
+ int popularity;
+
+ + struct rcu_head rcu;
+ +
+ atomic_t refcnt;
+
+ /* Doesn't change once created. */
+ @@ -40,7 +43,7 @@
+ {
+ struct object *i;
+
+ - list_for_each_entry(i, &cache, list) {
+ + list_for_each_entry_rcu(i, &cache, list) {
+ if (i->id == id) {
+ i->popularity++;
+ return i;
+ @@ -49,19 +52,25 @@
+ return NULL;
+ }
+
+ +/* Final discard done once we know no readers are looking. */
+ +static void cache_delete_rcu(void *arg)
+ +{
+ + object_put(arg);
+ +}
+ +
+ /* Must be holding cache_lock */
+ static void __cache_delete(struct object *obj)
+ {
+ BUG_ON(!obj);
+ - list_del(&obj->list);
+ - object_put(obj);
+ + list_del_rcu(&obj->list);
+ cache_num--;
+ + call_rcu(&obj->rcu, cache_delete_rcu);
+ }
+
+ /* Must be holding cache_lock */
+ static void __cache_add(struct object *obj)
+ {
+ - list_add(&obj->list, &cache);
+ + list_add_rcu(&obj->list, &cache);
+ if (++cache_num > MAX_CACHE_SIZE) {
+ struct object *i, *outcast = NULL;
+ list_for_each_entry(i, &cache, list) {
+ @@ -104,12 +114,11 @@
+ struct object *cache_find(int id)
+ {
+ struct object *obj;
+ - unsigned long flags;
+
+ - spin_lock_irqsave(&cache_lock, flags);
+ + rcu_read_lock();
+ obj = __cache_find(id);
+ if (obj)
+ object_get(obj);
+ - spin_unlock_irqrestore(&cache_lock, flags);
+ + rcu_read_unlock();
+ return obj;
+ }
+
+Note that the reader will alter the popularity member in
+:c:func:`__cache_find()`, and now it doesn't hold a lock. One
+solution would be to make it an ``atomic_t``, but for this usage, we
+don't really care about races: an approximate result is good enough, so
+I didn't change it.
+
+The result is that :c:func:`cache_find()` requires no
+synchronization with any other functions, so is almost as fast on SMP as
+it would be on UP.
+
+There is a further optimization possible here: remember our original
+cache code, where there were no reference counts and the caller simply
+held the lock whenever using the object? This is still possible: if you
+hold the lock, no one can delete the object, so you don't need to get
+and put the reference count.
+
+Now, because the 'read lock' in RCU is simply disabling preemption, a
+caller which always has preemption disabled between calling
+:c:func:`cache_find()` and :c:func:`object_put()` does not
+need to actually get and put the reference count: we could expose
+:c:func:`__cache_find()` by making it non-static, and such
+callers could simply call that.
+
+The benefit here is that the reference count is not written to: the
+object is not altered in any way, which is much faster on SMP machines
+due to caching.
+
+Per-CPU Data
+------------
+
+Another technique for avoiding locking which is used fairly widely is to
+duplicate information for each CPU. For example, if you wanted to keep a
+count of a common condition, you could use a spin lock and a single
+counter. Nice and simple.
+
+If that was too slow (it's usually not, but if you've got a really big
+machine to test on and can show that it is), you could instead use a
+counter for each CPU, then none of them need an exclusive lock. See
+:c:func:`DEFINE_PER_CPU()`, :c:func:`get_cpu_var()` and
+:c:func:`put_cpu_var()` (``include/linux/percpu.h``).
+
+Of particular use for simple per-cpu counters is the ``local_t`` type,
+and the :c:func:`cpu_local_inc()` and related functions, which are
+more efficient than simple code on some architectures
+(``include/asm/local.h``).
+
+Note that there is no simple, reliable way of getting an exact value of
+such a counter, without introducing more locks. This is not a problem
+for some uses.
+
+Data Which Mostly Used By An IRQ Handler
+----------------------------------------
+
+If data is always accessed from within the same IRQ handler, you don't
+need a lock at all: the kernel already guarantees that the irq handler
+will not run simultaneously on multiple CPUs.
+
+Manfred Spraul points out that you can still do this, even if the data
+is very occasionally accessed in user context or softirqs/tasklets. The
+irq handler doesn't use a lock, and all other accesses are done as so::
+
+ spin_lock(&lock);
+ disable_irq(irq);
+ ...
+ enable_irq(irq);
+ spin_unlock(&lock);
+
+The :c:func:`disable_irq()` prevents the irq handler from running
+(and waits for it to finish if it's currently running on other CPUs).
+The spinlock prevents any other accesses happening at the same time.
+Naturally, this is slower than just a :c:func:`spin_lock_irq()`
+call, so it only makes sense if this type of access happens extremely
+rarely.
+
+What Functions Are Safe To Call From Interrupts?
+================================================
+
+Many functions in the kernel sleep (ie. call schedule()) directly or
+indirectly: you can never call them while holding a spinlock, or with
+preemption disabled. This also means you need to be in user context:
+calling them from an interrupt is illegal.
+
+Some Functions Which Sleep
+--------------------------
+
+The most common ones are listed below, but you usually have to read the
+code to find out if other calls are safe. If everyone else who calls it
+can sleep, you probably need to be able to sleep, too. In particular,
+registration and deregistration functions usually expect to be called
+from user context, and can sleep.
+
+- Accesses to userspace:
+
+ - :c:func:`copy_from_user()`
+
+ - :c:func:`copy_to_user()`
+
+ - :c:func:`get_user()`
+
+ - :c:func:`put_user()`
+
+- :c:func:`kmalloc(GFP_KERNEL) <kmalloc>`
+
+- :c:func:`mutex_lock_interruptible()` and
+ :c:func:`mutex_lock()`
+
+ There is a :c:func:`mutex_trylock()` which does not sleep.
+ Still, it must not be used inside interrupt context since its
+ implementation is not safe for that. :c:func:`mutex_unlock()`
+ will also never sleep. It cannot be used in interrupt context either
+ since a mutex must be released by the same task that acquired it.
+
+Some Functions Which Don't Sleep
+--------------------------------
+
+Some functions are safe to call from any context, or holding almost any
+lock.
+
+- :c:func:`printk()`
+
+- :c:func:`kfree()`
+
+- :c:func:`add_timer()` and :c:func:`del_timer()`
+
+Mutex API reference
+===================
+
+.. kernel-doc:: include/linux/mutex.h
+ :internal:
+
+.. kernel-doc:: kernel/locking/mutex.c
+ :export:
+
+Futex API reference
+===================
+
+.. kernel-doc:: kernel/futex.c
+ :internal:
+
+Further reading
+===============
+
+- ``Documentation/locking/spinlocks.txt``: Linus Torvalds' spinlocking
+ tutorial in the kernel sources.
+
+- Unix Systems for Modern Architectures: Symmetric Multiprocessing and
+ Caching for Kernel Programmers:
+
+ Curt Schimmel's very good introduction to kernel level locking (not
+ written for Linux, but nearly everything applies). The book is
+ expensive, but really worth every penny to understand SMP locking.
+ [ISBN: 0201633388]
+
+Thanks
+======
+
+Thanks to Telsa Gwynne for DocBooking, neatening and adding style.
+
+Thanks to Martin Pool, Philipp Rumpf, Stephen Rothwell, Paul Mackerras,
+Ruedi Aschwanden, Alan Cox, Manfred Spraul, Tim Waugh, Pete Zaitcev,
+James Morris, Robert Love, Paul McKenney, John Ashby for proofreading,
+correcting, flaming, commenting.
+
+Thanks to the cabal for having no influence on this document.
+
+Glossary
+========
+
+preemption
+ Prior to 2.5, or when ``CONFIG_PREEMPT`` is unset, processes in user
+ context inside the kernel would not preempt each other (ie. you had that
+ CPU until you gave it up, except for interrupts). With the addition of
+ ``CONFIG_PREEMPT`` in 2.5.4, this changed: when in user context, higher
+ priority tasks can "cut in": spinlocks were changed to disable
+ preemption, even on UP.
+
+bh
+ Bottom Half: for historical reasons, functions with '_bh' in them often
+ now refer to any software interrupt, e.g. :c:func:`spin_lock_bh()`
+ blocks any software interrupt on the current CPU. Bottom halves are
+ deprecated, and will eventually be replaced by tasklets. Only one bottom
+ half will be running at any time.
+
+Hardware Interrupt / Hardware IRQ
+ Hardware interrupt request. :c:func:`in_irq()` returns true in a
+ hardware interrupt handler.
+
+Interrupt Context
+ Not user context: processing a hardware irq or software irq. Indicated
+ by the :c:func:`in_interrupt()` macro returning true.
+
+SMP
+ Symmetric Multi-Processor: kernels compiled for multiple-CPU machines.
+ (``CONFIG_SMP=y``).
+
+Software Interrupt / softirq
+ Software interrupt handler. :c:func:`in_irq()` returns false;
+ :c:func:`in_softirq()` returns true. Tasklets and softirqs both
+ fall into the category of 'software interrupts'.
+
+ Strictly speaking a softirq is one of up to 32 enumerated software
+ interrupts which can run on multiple CPUs at once. Sometimes used to
+ refer to tasklets as well (ie. all software interrupts).
+
+tasklet
+ A dynamically-registrable software interrupt, which is guaranteed to
+ only run on one CPU at a time.
+
+timer
+ A dynamically-registrable software interrupt, which is run at (or close
+ to) a given time. When running, it is just like a tasklet (in fact, they
+ are called from the ``TIMER_SOFTIRQ``).
+
+UP
+ Uni-Processor: Non-SMP. (``CONFIG_SMP=n``).
+
+User Context
+ The kernel executing on behalf of a particular process (ie. a system
+ call or trap) or kernel thread. You can tell which process with the
+ ``current`` macro.) Not to be confused with userspace. Can be
+ interrupted by software or hardware interrupts.
+
+Userspace
+ A process executing its own code outside the kernel.
diff --git a/Documentation/kernel-per-CPU-kthreads.txt b/Documentation/kernel-per-CPU-kthreads.txt
index df31e30b6a02..0f00f9c164ac 100644
--- a/Documentation/kernel-per-CPU-kthreads.txt
+++ b/Documentation/kernel-per-CPU-kthreads.txt
@@ -1,27 +1,29 @@
-REDUCING OS JITTER DUE TO PER-CPU KTHREADS
+==========================================
+Reducing OS jitter due to per-cpu kthreads
+==========================================
This document lists per-CPU kthreads in the Linux kernel and presents
options to control their OS jitter. Note that non-per-CPU kthreads are
not listed here. To reduce OS jitter from non-per-CPU kthreads, bind
them to a "housekeeping" CPU dedicated to such work.
+References
+==========
-REFERENCES
+- Documentation/IRQ-affinity.txt: Binding interrupts to sets of CPUs.
-o Documentation/IRQ-affinity.txt: Binding interrupts to sets of CPUs.
+- Documentation/cgroup-v1: Using cgroups to bind tasks to sets of CPUs.
-o Documentation/cgroup-v1: Using cgroups to bind tasks to sets of CPUs.
-
-o man taskset: Using the taskset command to bind tasks to sets
+- man taskset: Using the taskset command to bind tasks to sets
of CPUs.
-o man sched_setaffinity: Using the sched_setaffinity() system
+- man sched_setaffinity: Using the sched_setaffinity() system
call to bind tasks to sets of CPUs.
-o /sys/devices/system/cpu/cpuN/online: Control CPU N's hotplug state,
+- /sys/devices/system/cpu/cpuN/online: Control CPU N's hotplug state,
writing "0" to offline and "1" to online.
-o In order to locate kernel-generated OS jitter on CPU N:
+- In order to locate kernel-generated OS jitter on CPU N:
cd /sys/kernel/debug/tracing
echo 1 > max_graph_depth # Increase the "1" for more detail
@@ -29,12 +31,17 @@ o In order to locate kernel-generated OS jitter on CPU N:
# run workload
cat per_cpu/cpuN/trace
+kthreads
+========
+
+Name:
+ ehca_comp/%u
-KTHREADS
+Purpose:
+ Periodically process Infiniband-related work.
-Name: ehca_comp/%u
-Purpose: Periodically process Infiniband-related work.
To reduce its OS jitter, do any of the following:
+
1. Don't use eHCA Infiniband hardware, instead choosing hardware
that does not require per-CPU kthreads. This will prevent these
kthreads from being created in the first place. (This will
@@ -46,26 +53,45 @@ To reduce its OS jitter, do any of the following:
provisioned only on selected CPUs.
-Name: irq/%d-%s
-Purpose: Handle threaded interrupts.
+Name:
+ irq/%d-%s
+
+Purpose:
+ Handle threaded interrupts.
+
To reduce its OS jitter, do the following:
+
1. Use irq affinity to force the irq threads to execute on
some other CPU.
-Name: kcmtpd_ctr_%d
-Purpose: Handle Bluetooth work.
+Name:
+ kcmtpd_ctr_%d
+
+Purpose:
+ Handle Bluetooth work.
+
To reduce its OS jitter, do one of the following:
+
1. Don't use Bluetooth, in which case these kthreads won't be
created in the first place.
2. Use irq affinity to force Bluetooth-related interrupts to
occur on some other CPU and furthermore initiate all
Bluetooth activity on some other CPU.
-Name: ksoftirqd/%u
-Purpose: Execute softirq handlers when threaded or when under heavy load.
+Name:
+ ksoftirqd/%u
+
+Purpose:
+ Execute softirq handlers when threaded or when under heavy load.
+
To reduce its OS jitter, each softirq vector must be handled
separately as follows:
-TIMER_SOFTIRQ: Do all of the following:
+
+TIMER_SOFTIRQ
+-------------
+
+Do all of the following:
+
1. To the extent possible, keep the CPU out of the kernel when it
is non-idle, for example, by avoiding system calls and by forcing
both kernel threads and interrupts to execute elsewhere.
@@ -76,52 +102,81 @@ TIMER_SOFTIRQ: Do all of the following:
first one back online. Once you have onlined the CPUs in question,
do not offline any other CPUs, because doing so could force the
timer back onto one of the CPUs in question.
-NET_TX_SOFTIRQ and NET_RX_SOFTIRQ: Do all of the following:
+
+NET_TX_SOFTIRQ and NET_RX_SOFTIRQ
+---------------------------------
+
+Do all of the following:
+
1. Force networking interrupts onto other CPUs.
2. Initiate any network I/O on other CPUs.
3. Once your application has started, prevent CPU-hotplug operations
from being initiated from tasks that might run on the CPU to
be de-jittered. (It is OK to force this CPU offline and then
bring it back online before you start your application.)
-BLOCK_SOFTIRQ: Do all of the following:
+
+BLOCK_SOFTIRQ
+-------------
+
+Do all of the following:
+
1. Force block-device interrupts onto some other CPU.
2. Initiate any block I/O on other CPUs.
3. Once your application has started, prevent CPU-hotplug operations
from being initiated from tasks that might run on the CPU to
be de-jittered. (It is OK to force this CPU offline and then
bring it back online before you start your application.)
-IRQ_POLL_SOFTIRQ: Do all of the following:
+
+IRQ_POLL_SOFTIRQ
+----------------
+
+Do all of the following:
+
1. Force block-device interrupts onto some other CPU.
2. Initiate any block I/O and block-I/O polling on other CPUs.
3. Once your application has started, prevent CPU-hotplug operations
from being initiated from tasks that might run on the CPU to
be de-jittered. (It is OK to force this CPU offline and then
bring it back online before you start your application.)
-TASKLET_SOFTIRQ: Do one or more of the following:
+
+TASKLET_SOFTIRQ
+---------------
+
+Do one or more of the following:
+
1. Avoid use of drivers that use tasklets. (Such drivers will contain
calls to things like tasklet_schedule().)
2. Convert all drivers that you must use from tasklets to workqueues.
3. Force interrupts for drivers using tasklets onto other CPUs,
and also do I/O involving these drivers on other CPUs.
-SCHED_SOFTIRQ: Do all of the following:
+
+SCHED_SOFTIRQ
+-------------
+
+Do all of the following:
+
1. Avoid sending scheduler IPIs to the CPU to be de-jittered,
for example, ensure that at most one runnable kthread is present
on that CPU. If a thread that expects to run on the de-jittered
CPU awakens, the scheduler will send an IPI that can result in
a subsequent SCHED_SOFTIRQ.
-2. Build with CONFIG_RCU_NOCB_CPU=y, CONFIG_RCU_NOCB_CPU_ALL=y,
- CONFIG_NO_HZ_FULL=y, and, in addition, ensure that the CPU
- to be de-jittered is marked as an adaptive-ticks CPU using the
- "nohz_full=" boot parameter. This reduces the number of
- scheduler-clock interrupts that the de-jittered CPU receives,
- minimizing its chances of being selected to do the load balancing
- work that runs in SCHED_SOFTIRQ context.
+2. CONFIG_NO_HZ_FULL=y and ensure that the CPU to be de-jittered
+ is marked as an adaptive-ticks CPU using the "nohz_full="
+ boot parameter. This reduces the number of scheduler-clock
+ interrupts that the de-jittered CPU receives, minimizing its
+ chances of being selected to do the load balancing work that
+ runs in SCHED_SOFTIRQ context.
3. To the extent possible, keep the CPU out of the kernel when it
is non-idle, for example, by avoiding system calls and by
forcing both kernel threads and interrupts to execute elsewhere.
This further reduces the number of scheduler-clock interrupts
received by the de-jittered CPU.
-HRTIMER_SOFTIRQ: Do all of the following:
+
+HRTIMER_SOFTIRQ
+---------------
+
+Do all of the following:
+
1. To the extent possible, keep the CPU out of the kernel when it
is non-idle. For example, avoid system calls and force both
kernel threads and interrupts to execute elsewhere.
@@ -132,20 +187,27 @@ HRTIMER_SOFTIRQ: Do all of the following:
back online. Once you have onlined the CPUs in question, do not
offline any other CPUs, because doing so could force the timer
back onto one of the CPUs in question.
-RCU_SOFTIRQ: Do at least one of the following:
+
+RCU_SOFTIRQ
+-----------
+
+Do at least one of the following:
+
1. Offload callbacks and keep the CPU in either dyntick-idle or
adaptive-ticks state by doing all of the following:
- a. Build with CONFIG_RCU_NOCB_CPU=y, CONFIG_RCU_NOCB_CPU_ALL=y,
- CONFIG_NO_HZ_FULL=y, and, in addition ensure that the CPU
- to be de-jittered is marked as an adaptive-ticks CPU using
- the "nohz_full=" boot parameter. Bind the rcuo kthreads
- to housekeeping CPUs, which can tolerate OS jitter.
+
+ a. CONFIG_NO_HZ_FULL=y and ensure that the CPU to be
+ de-jittered is marked as an adaptive-ticks CPU using the
+ "nohz_full=" boot parameter. Bind the rcuo kthreads to
+ housekeeping CPUs, which can tolerate OS jitter.
b. To the extent possible, keep the CPU out of the kernel
when it is non-idle, for example, by avoiding system
calls and by forcing both kernel threads and interrupts
to execute elsewhere.
+
2. Enable RCU to do its processing remotely via dyntick-idle by
doing all of the following:
+
a. Build with CONFIG_NO_HZ=y and CONFIG_RCU_FAST_NO_HZ=y.
b. Ensure that the CPU goes idle frequently, allowing other
CPUs to detect that it has passed through an RCU quiescent
@@ -157,15 +219,20 @@ RCU_SOFTIRQ: Do at least one of the following:
calls and by forcing both kernel threads and interrupts
to execute elsewhere.
-Name: kworker/%u:%d%s (cpu, id, priority)
-Purpose: Execute workqueue requests
+Name:
+ kworker/%u:%d%s (cpu, id, priority)
+
+Purpose:
+ Execute workqueue requests
+
To reduce its OS jitter, do any of the following:
+
1. Run your workload at a real-time priority, which will allow
preempting the kworker daemons.
2. A given workqueue can be made visible in the sysfs filesystem
by passing the WQ_SYSFS to that workqueue's alloc_workqueue().
Such a workqueue can be confined to a given subset of the
- CPUs using the /sys/devices/virtual/workqueue/*/cpumask sysfs
+ CPUs using the ``/sys/devices/virtual/workqueue/*/cpumask`` sysfs
files. The set of WQ_SYSFS workqueues can be displayed using
"ls sys/devices/virtual/workqueue". That said, the workqueues
maintainer would like to caution people against indiscriminately
@@ -175,6 +242,7 @@ To reduce its OS jitter, do any of the following:
to remove it, even if its addition was a mistake.
3. Do any of the following needed to avoid jitter that your
application cannot tolerate:
+
a. Build your kernel with CONFIG_SLUB=y rather than
CONFIG_SLAB=y, thus avoiding the slab allocator's periodic
use of each CPU's workqueues to run its cache_reap()
@@ -188,6 +256,7 @@ To reduce its OS jitter, do any of the following:
be able to build your kernel with CONFIG_CPU_FREQ=n to
avoid the CPU-frequency governor periodically running
on each CPU, including cs_dbs_timer() and od_dbs_timer().
+
WARNING: Please check your CPU specifications to
make sure that this is safe on your particular system.
d. As of v3.18, Christoph Lameter's on-demand vmstat workers
@@ -224,9 +293,14 @@ To reduce its OS jitter, do any of the following:
CONFIG_PMAC_RACKMETER=n to disable the CPU-meter,
avoiding OS jitter from rackmeter_do_timer().
-Name: rcuc/%u
-Purpose: Execute RCU callbacks in CONFIG_RCU_BOOST=y kernels.
+Name:
+ rcuc/%u
+
+Purpose:
+ Execute RCU callbacks in CONFIG_RCU_BOOST=y kernels.
+
To reduce its OS jitter, do at least one of the following:
+
1. Build the kernel with CONFIG_PREEMPT=n. This prevents these
kthreads from being created in the first place, and also obviates
the need for RCU priority boosting. This approach is feasible
@@ -236,20 +310,24 @@ To reduce its OS jitter, do at least one of the following:
is feasible only if your workload never requires RCU priority
boosting, for example, if you ensure frequent idle time on all
CPUs that might execute within the kernel.
-3. Build with CONFIG_RCU_NOCB_CPU=y and CONFIG_RCU_NOCB_CPU_ALL=y,
- which offloads all RCU callbacks to kthreads that can be moved
- off of CPUs susceptible to OS jitter. This approach prevents the
- rcuc/%u kthreads from having any work to do, so that they are
- never awakened.
+3. Build with CONFIG_RCU_NOCB_CPU=y and boot with the rcu_nocbs=
+ boot parameter offloading RCU callbacks from all CPUs susceptible
+ to OS jitter. This approach prevents the rcuc/%u kthreads from
+ having any work to do, so that they are never awakened.
4. Ensure that the CPU never enters the kernel, and, in particular,
avoid initiating any CPU hotplug operations on this CPU. This is
another way of preventing any callbacks from being queued on the
CPU, again preventing the rcuc/%u kthreads from having any work
to do.
-Name: rcuob/%d, rcuop/%d, and rcuos/%d
-Purpose: Offload RCU callbacks from the corresponding CPU.
+Name:
+ rcuob/%d, rcuop/%d, and rcuos/%d
+
+Purpose:
+ Offload RCU callbacks from the corresponding CPU.
+
To reduce its OS jitter, do at least one of the following:
+
1. Use affinity, cgroups, or other mechanism to force these kthreads
to execute on some other CPU.
2. Build with CONFIG_RCU_NOCB_CPU=n, which will prevent these
@@ -257,9 +335,14 @@ To reduce its OS jitter, do at least one of the following:
note that this will not eliminate OS jitter, but will instead
shift it to RCU_SOFTIRQ.
-Name: watchdog/%u
-Purpose: Detect software lockups on each CPU.
+Name:
+ watchdog/%u
+
+Purpose:
+ Detect software lockups on each CPU.
+
To reduce its OS jitter, do at least one of the following:
+
1. Build with CONFIG_LOCKUP_DETECTOR=n, which will prevent these
kthreads from being created in the first place.
2. Boot with "nosoftlockup=0", which will also prevent these kthreads
diff --git a/Documentation/kobject.txt b/Documentation/kobject.txt
index 1be59a3a521c..fc9485d79061 100644
--- a/Documentation/kobject.txt
+++ b/Documentation/kobject.txt
@@ -1,13 +1,13 @@
+=====================================================================
Everything you never wanted to know about kobjects, ksets, and ktypes
+=====================================================================
-Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+:Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+:Last updated: December 19, 2007
Based on an original article by Jon Corbet for lwn.net written October 1,
2003 and located at http://lwn.net/Articles/51437/
-Last updated December 19, 2007
-
-
Part of the difficulty in understanding the driver model - and the kobject
abstraction upon which it is built - is that there is no obvious starting
place. Dealing with kobjects requires understanding a few different types,
@@ -47,6 +47,7 @@ approach will be taken, so we'll go back to kobjects.
Embedding kobjects
+==================
It is rare for kernel code to create a standalone kobject, with one major
exception explained below. Instead, kobjects are used to control access to
@@ -65,7 +66,7 @@ their own, but are invariably found embedded in the larger objects of
interest.)
So, for example, the UIO code in drivers/uio/uio.c has a structure that
-defines the memory region associated with a uio device:
+defines the memory region associated with a uio device::
struct uio_map {
struct kobject kobj;
@@ -77,7 +78,7 @@ just a matter of using the kobj member. Code that works with kobjects will
often have the opposite problem, however: given a struct kobject pointer,
what is the pointer to the containing structure? You must avoid tricks
(such as assuming that the kobject is at the beginning of the structure)
-and, instead, use the container_of() macro, found in <linux/kernel.h>:
+and, instead, use the container_of() macro, found in <linux/kernel.h>::
container_of(pointer, type, member)
@@ -90,13 +91,13 @@ where:
The return value from container_of() is a pointer to the corresponding
container type. So, for example, a pointer "kp" to a struct kobject
embedded *within* a struct uio_map could be converted to a pointer to the
-*containing* uio_map structure with:
+*containing* uio_map structure with::
struct uio_map *u_map = container_of(kp, struct uio_map, kobj);
For convenience, programmers often define a simple macro for "back-casting"
kobject pointers to the containing type. Exactly this happens in the
-earlier drivers/uio/uio.c, as you can see here:
+earlier drivers/uio/uio.c, as you can see here::
struct uio_map {
struct kobject kobj;
@@ -106,23 +107,25 @@ earlier drivers/uio/uio.c, as you can see here:
#define to_map(map) container_of(map, struct uio_map, kobj)
where the macro argument "map" is a pointer to the struct kobject in
-question. That macro is subsequently invoked with:
+question. That macro is subsequently invoked with::
struct uio_map *map = to_map(kobj);
Initialization of kobjects
+==========================
Code which creates a kobject must, of course, initialize that object. Some
-of the internal fields are setup with a (mandatory) call to kobject_init():
+of the internal fields are setup with a (mandatory) call to kobject_init()::
void kobject_init(struct kobject *kobj, struct kobj_type *ktype);
The ktype is required for a kobject to be created properly, as every kobject
must have an associated kobj_type. After calling kobject_init(), to
-register the kobject with sysfs, the function kobject_add() must be called:
+register the kobject with sysfs, the function kobject_add() must be called::
- int kobject_add(struct kobject *kobj, struct kobject *parent, const char *fmt, ...);
+ int kobject_add(struct kobject *kobj, struct kobject *parent,
+ const char *fmt, ...);
This sets up the parent of the kobject and the name for the kobject
properly. If the kobject is to be associated with a specific kset,
@@ -133,7 +136,7 @@ kset itself.
As the name of the kobject is set when it is added to the kernel, the name
of the kobject should never be manipulated directly. If you must change
-the name of the kobject, call kobject_rename():
+the name of the kobject, call kobject_rename()::
int kobject_rename(struct kobject *kobj, const char *new_name);
@@ -146,12 +149,12 @@ is being removed. If your code needs to call this function, it is
incorrect and needs to be fixed.
To properly access the name of the kobject, use the function
-kobject_name():
+kobject_name()::
const char *kobject_name(const struct kobject * kobj);
There is a helper function to both initialize and add the kobject to the
-kernel at the same time, called surprisingly enough kobject_init_and_add():
+kernel at the same time, called surprisingly enough kobject_init_and_add()::
int kobject_init_and_add(struct kobject *kobj, struct kobj_type *ktype,
struct kobject *parent, const char *fmt, ...);
@@ -161,10 +164,11 @@ kobject_add() functions described above.
Uevents
+=======
After a kobject has been registered with the kobject core, you need to
announce to the world that it has been created. This can be done with a
-call to kobject_uevent():
+call to kobject_uevent()::
int kobject_uevent(struct kobject *kobj, enum kobject_action action);
@@ -180,11 +184,12 @@ hand.
Reference counts
+================
One of the key functions of a kobject is to serve as a reference counter
for the object in which it is embedded. As long as references to the object
exist, the object (and the code which supports it) must continue to exist.
-The low-level functions for manipulating a kobject's reference counts are:
+The low-level functions for manipulating a kobject's reference counts are::
struct kobject *kobject_get(struct kobject *kobj);
void kobject_put(struct kobject *kobj);
@@ -209,21 +214,24 @@ file Documentation/kref.txt in the Linux kernel source tree.
Creating "simple" kobjects
+==========================
Sometimes all that a developer wants is a way to create a simple directory
in the sysfs hierarchy, and not have to mess with the whole complication of
ksets, show and store functions, and other details. This is the one
exception where a single kobject should be created. To create such an
-entry, use the function:
+entry, use the function::
struct kobject *kobject_create_and_add(char *name, struct kobject *parent);
This function will create a kobject and place it in sysfs in the location
underneath the specified parent kobject. To create simple attributes
-associated with this kobject, use:
+associated with this kobject, use::
int sysfs_create_file(struct kobject *kobj, struct attribute *attr);
-or
+
+or::
+
int sysfs_create_group(struct kobject *kobj, struct attribute_group *grp);
Both types of attributes used here, with a kobject that has been created
@@ -236,6 +244,7 @@ implementation of a simple kobject and attributes.
ktypes and release methods
+==========================
One important thing still missing from the discussion is what happens to a
kobject when its reference count reaches zero. The code which created the
@@ -257,7 +266,7 @@ is good practice to always use kobject_put() after kobject_init() to avoid
errors creeping in.
This notification is done through a kobject's release() method. Usually
-such a method has a form like:
+such a method has a form like::
void my_object_release(struct kobject *kobj)
{
@@ -281,7 +290,7 @@ leak in the kobject core, which makes people unhappy.
Interestingly, the release() method is not stored in the kobject itself;
instead, it is associated with the ktype. So let us introduce struct
-kobj_type:
+kobj_type::
struct kobj_type {
void (*release)(struct kobject *kobj);
@@ -306,6 +315,7 @@ automatically created for any kobject that is registered with this ktype.
ksets
+=====
A kset is merely a collection of kobjects that want to be associated with
each other. There is no restriction that they be of the same ktype, but be
@@ -335,13 +345,16 @@ kobject) in their parent.
As a kset contains a kobject within it, it should always be dynamically
created and never declared statically or on the stack. To create a new
-kset use:
+kset use::
+
struct kset *kset_create_and_add(const char *name,
struct kset_uevent_ops *u,
struct kobject *parent);
-When you are finished with the kset, call:
+When you are finished with the kset, call::
+
void kset_unregister(struct kset *kset);
+
to destroy it. This removes the kset from sysfs and decrements its reference
count. When the reference count goes to zero, the kset will be released.
Because other references to the kset may still exist, the release may happen
@@ -351,14 +364,14 @@ An example of using a kset can be seen in the
samples/kobject/kset-example.c file in the kernel tree.
If a kset wishes to control the uevent operations of the kobjects
-associated with it, it can use the struct kset_uevent_ops to handle it:
+associated with it, it can use the struct kset_uevent_ops to handle it::
-struct kset_uevent_ops {
+ struct kset_uevent_ops {
int (*filter)(struct kset *kset, struct kobject *kobj);
const char *(*name)(struct kset *kset, struct kobject *kobj);
int (*uevent)(struct kset *kset, struct kobject *kobj,
struct kobj_uevent_env *env);
-};
+ };
The filter function allows a kset to prevent a uevent from being emitted to
@@ -386,6 +399,7 @@ added below the parent kobject.
Kobject removal
+===============
After a kobject has been registered with the kobject core successfully, it
must be cleaned up when the code is finished with it. To do that, call
@@ -409,6 +423,7 @@ called, and the objects in the former circle release each other.
Example code to copy from
+=========================
For a more complete example of using ksets and kobjects properly, see the
example programs samples/kobject/{kobject-example.c,kset-example.c},
diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt
index 1f6d45abfe42..2335715bf471 100644
--- a/Documentation/kprobes.txt
+++ b/Documentation/kprobes.txt
@@ -1,30 +1,36 @@
-Title : Kernel Probes (Kprobes)
-Authors : Jim Keniston <jkenisto@us.ibm.com>
- : Prasanna S Panchamukhi <prasanna.panchamukhi@gmail.com>
- : Masami Hiramatsu <mhiramat@redhat.com>
-
-CONTENTS
-
-1. Concepts: Kprobes, Jprobes, Return Probes
-2. Architectures Supported
-3. Configuring Kprobes
-4. API Reference
-5. Kprobes Features and Limitations
-6. Probe Overhead
-7. TODO
-8. Kprobes Example
-9. Jprobes Example
-10. Kretprobes Example
-Appendix A: The kprobes debugfs interface
-Appendix B: The kprobes sysctl interface
-
-1. Concepts: Kprobes, Jprobes, Return Probes
+=======================
+Kernel Probes (Kprobes)
+=======================
+
+:Author: Jim Keniston <jkenisto@us.ibm.com>
+:Author: Prasanna S Panchamukhi <prasanna.panchamukhi@gmail.com>
+:Author: Masami Hiramatsu <mhiramat@redhat.com>
+
+.. CONTENTS
+
+ 1. Concepts: Kprobes, Jprobes, Return Probes
+ 2. Architectures Supported
+ 3. Configuring Kprobes
+ 4. API Reference
+ 5. Kprobes Features and Limitations
+ 6. Probe Overhead
+ 7. TODO
+ 8. Kprobes Example
+ 9. Jprobes Example
+ 10. Kretprobes Example
+ Appendix A: The kprobes debugfs interface
+ Appendix B: The kprobes sysctl interface
+
+Concepts: Kprobes, Jprobes, Return Probes
+=========================================
Kprobes enables you to dynamically break into any kernel routine and
collect debugging and performance information non-disruptively. You
-can trap at almost any kernel code address(*), specifying a handler
+can trap at almost any kernel code address [1]_, specifying a handler
routine to be invoked when the breakpoint is hit.
-(*: some parts of the kernel code can not be trapped, see 1.5 Blacklist)
+
+.. [1] some parts of the kernel code can not be trapped, see
+ :ref:`kprobes_blacklist`)
There are currently three types of probes: kprobes, jprobes, and
kretprobes (also called return probes). A kprobe can be inserted
@@ -40,8 +46,8 @@ registration function such as register_kprobe() specifies where
the probe is to be inserted and what handler is to be called when
the probe is hit.
-There are also register_/unregister_*probes() functions for batch
-registration/unregistration of a group of *probes. These functions
+There are also ``register_/unregister_*probes()`` functions for batch
+registration/unregistration of a group of ``*probes``. These functions
can speed up unregistration process when you have to unregister
a lot of probes at once.
@@ -51,9 +57,10 @@ things that you'll need to know in order to make the best use of
Kprobes -- e.g., the difference between a pre_handler and
a post_handler, and how to use the maxactive and nmissed fields of
a kretprobe. But if you're in a hurry to start using Kprobes, you
-can skip ahead to section 2.
+can skip ahead to :ref:`kprobes_archs_supported`.
-1.1 How Does a Kprobe Work?
+How Does a Kprobe Work?
+-----------------------
When a kprobe is registered, Kprobes makes a copy of the probed
instruction and replaces the first byte(s) of the probed instruction
@@ -75,7 +82,8 @@ After the instruction is single-stepped, Kprobes executes the
"post_handler," if any, that is associated with the kprobe.
Execution then continues with the instruction following the probepoint.
-1.2 How Does a Jprobe Work?
+How Does a Jprobe Work?
+-----------------------
A jprobe is implemented using a kprobe that is placed on a function's
entry point. It employs a simple mirroring principle to allow
@@ -113,9 +121,11 @@ more than eight function arguments, an argument of more than sixteen
bytes, or more than 64 bytes of argument data, depending on
architecture).
-1.3 Return Probes
+Return Probes
+-------------
-1.3.1 How Does a Return Probe Work?
+How Does a Return Probe Work?
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
When you call register_kretprobe(), Kprobes establishes a kprobe at
the entry to the function. When the probed function is called and this
@@ -150,7 +160,8 @@ zero when the return probe is registered, and is incremented every
time the probed function is entered but there is no kretprobe_instance
object available for establishing the return probe.
-1.3.2 Kretprobe entry-handler
+Kretprobe entry-handler
+^^^^^^^^^^^^^^^^^^^^^^^
Kretprobes also provides an optional user-specified handler which runs
on function entry. This handler is specified by setting the entry_handler
@@ -174,7 +185,10 @@ In case probed function is entered but there is no kretprobe_instance
object available, then in addition to incrementing the nmissed count,
the user entry_handler invocation is also skipped.
-1.4 How Does Jump Optimization Work?
+.. _kprobes_jump_optimization:
+
+How Does Jump Optimization Work?
+--------------------------------
If your kernel is built with CONFIG_OPTPROBES=y (currently this flag
is automatically set 'y' on x86/x86-64, non-preemptive kernel) and
@@ -182,53 +196,60 @@ the "debug.kprobes_optimization" kernel parameter is set to 1 (see
sysctl(8)), Kprobes tries to reduce probe-hit overhead by using a jump
instruction instead of a breakpoint instruction at each probepoint.
-1.4.1 Init a Kprobe
+Init a Kprobe
+^^^^^^^^^^^^^
When a probe is registered, before attempting this optimization,
Kprobes inserts an ordinary, breakpoint-based kprobe at the specified
address. So, even if it's not possible to optimize this particular
probepoint, there'll be a probe there.
-1.4.2 Safety Check
+Safety Check
+^^^^^^^^^^^^
Before optimizing a probe, Kprobes performs the following safety checks:
- Kprobes verifies that the region that will be replaced by the jump
-instruction (the "optimized region") lies entirely within one function.
-(A jump instruction is multiple bytes, and so may overlay multiple
-instructions.)
+ instruction (the "optimized region") lies entirely within one function.
+ (A jump instruction is multiple bytes, and so may overlay multiple
+ instructions.)
- Kprobes analyzes the entire function and verifies that there is no
-jump into the optimized region. Specifically:
+ jump into the optimized region. Specifically:
+
- the function contains no indirect jump;
- the function contains no instruction that causes an exception (since
- the fixup code triggered by the exception could jump back into the
- optimized region -- Kprobes checks the exception tables to verify this);
- and
+ the fixup code triggered by the exception could jump back into the
+ optimized region -- Kprobes checks the exception tables to verify this);
- there is no near jump to the optimized region (other than to the first
- byte).
+ byte).
- For each instruction in the optimized region, Kprobes verifies that
-the instruction can be executed out of line.
+ the instruction can be executed out of line.
-1.4.3 Preparing Detour Buffer
+Preparing Detour Buffer
+^^^^^^^^^^^^^^^^^^^^^^^
Next, Kprobes prepares a "detour" buffer, which contains the following
instruction sequence:
+
- code to push the CPU's registers (emulating a breakpoint trap)
- a call to the trampoline code which calls user's probe handlers.
- code to restore registers
- the instructions from the optimized region
- a jump back to the original execution path.
-1.4.4 Pre-optimization
+Pre-optimization
+^^^^^^^^^^^^^^^^
After preparing the detour buffer, Kprobes verifies that none of the
following situations exist:
+
- The probe has either a break_handler (i.e., it's a jprobe) or a
-post_handler.
+ post_handler.
- Other instructions in the optimized region are probed.
- The probe is disabled.
+
In any of the above cases, Kprobes won't start optimizing the probe.
Since these are temporary situations, Kprobes tries to start
optimizing it again if the situation is changed.
@@ -240,21 +261,23 @@ Kprobes returns control to the original instruction path by setting
the CPU's instruction pointer to the copied code in the detour buffer
-- thus at least avoiding the single-step.
-1.4.5 Optimization
+Optimization
+^^^^^^^^^^^^
The Kprobe-optimizer doesn't insert the jump instruction immediately;
rather, it calls synchronize_sched() for safety first, because it's
possible for a CPU to be interrupted in the middle of executing the
-optimized region(*). As you know, synchronize_sched() can ensure
+optimized region [3]_. As you know, synchronize_sched() can ensure
that all interruptions that were active when synchronize_sched()
was called are done, but only if CONFIG_PREEMPT=n. So, this version
-of kprobe optimization supports only kernels with CONFIG_PREEMPT=n.(**)
+of kprobe optimization supports only kernels with CONFIG_PREEMPT=n [4]_.
After that, the Kprobe-optimizer calls stop_machine() to replace
the optimized region with a jump instruction to the detour buffer,
using text_poke_smp().
-1.4.6 Unoptimization
+Unoptimization
+^^^^^^^^^^^^^^
When an optimized kprobe is unregistered, disabled, or blocked by
another kprobe, it will be unoptimized. If this happens before
@@ -263,15 +286,15 @@ optimized list. If the optimization has been done, the jump is
replaced with the original code (except for an int3 breakpoint in
the first byte) by using text_poke_smp().
-(*)Please imagine that the 2nd instruction is interrupted and then
-the optimizer replaces the 2nd instruction with the jump *address*
-while the interrupt handler is running. When the interrupt
-returns to original address, there is no valid instruction,
-and it causes an unexpected result.
+.. [3] Please imagine that the 2nd instruction is interrupted and then
+ the optimizer replaces the 2nd instruction with the jump *address*
+ while the interrupt handler is running. When the interrupt
+ returns to original address, there is no valid instruction,
+ and it causes an unexpected result.
-(**)This optimization-safety checking may be replaced with the
-stop-machine method that ksplice uses for supporting a CONFIG_PREEMPT=y
-kernel.
+.. [4] This optimization-safety checking may be replaced with the
+ stop-machine method that ksplice uses for supporting a CONFIG_PREEMPT=y
+ kernel.
NOTE for geeks:
The jump optimization changes the kprobe's pre_handler behavior.
@@ -280,11 +303,17 @@ path by changing regs->ip and returning 1. However, when the probe
is optimized, that modification is ignored. Thus, if you want to
tweak the kernel's execution path, you need to suppress optimization,
using one of the following techniques:
+
- Specify an empty function for the kprobe's post_handler or break_handler.
- or
+
+or
+
- Execute 'sysctl -w debug.kprobes_optimization=n'
-1.5 Blacklist
+.. _kprobes_blacklist:
+
+Blacklist
+---------
Kprobes can probe most of the kernel except itself. This means
that there are some functions where kprobes cannot probe. Probing
@@ -297,7 +326,10 @@ to specify a blacklisted function.
Kprobes checks the given probe address against the blacklist and
rejects registering it, if the given address is in the blacklist.
-2. Architectures Supported
+.. _kprobes_archs_supported:
+
+Architectures Supported
+=======================
Kprobes, jprobes, and return probes are implemented on the following
architectures:
@@ -312,7 +344,8 @@ architectures:
- mips
- s390
-3. Configuring Kprobes
+Configuring Kprobes
+===================
When configuring the kernel using make menuconfig/xconfig/oldconfig,
ensure that CONFIG_KPROBES is set to "y". Under "General setup", look
@@ -331,7 +364,8 @@ it useful to "Compile the kernel with debug info" (CONFIG_DEBUG_INFO),
so you can use "objdump -d -l vmlinux" to see the source-to-object
code mapping.
-4. API Reference
+API Reference
+=============
The Kprobes API includes a "register" function and an "unregister"
function for each type of probe. The API also includes "register_*probes"
@@ -340,10 +374,13 @@ Here are terse, mini-man-page specifications for these functions and
the associated probe handlers that you'll write. See the files in the
samples/kprobes/ sub-directory for examples.
-4.1 register_kprobe
+register_kprobe
+---------------
+
+::
-#include <linux/kprobes.h>
-int register_kprobe(struct kprobe *kp);
+ #include <linux/kprobes.h>
+ int register_kprobe(struct kprobe *kp);
Sets a breakpoint at the address kp->addr. When the breakpoint is
hit, Kprobes calls kp->pre_handler. After the probed instruction
@@ -354,61 +391,68 @@ kp->fault_handler. Any or all handlers can be NULL. If kp->flags
is set KPROBE_FLAG_DISABLED, that kp will be registered but disabled,
so, its handlers aren't hit until calling enable_kprobe(kp).
-NOTE:
-1. With the introduction of the "symbol_name" field to struct kprobe,
-the probepoint address resolution will now be taken care of by the kernel.
-The following will now work:
+.. note::
+
+ 1. With the introduction of the "symbol_name" field to struct kprobe,
+ the probepoint address resolution will now be taken care of by the kernel.
+ The following will now work::
kp.symbol_name = "symbol_name";
-(64-bit powerpc intricacies such as function descriptors are handled
-transparently)
+ (64-bit powerpc intricacies such as function descriptors are handled
+ transparently)
-2. Use the "offset" field of struct kprobe if the offset into the symbol
-to install a probepoint is known. This field is used to calculate the
-probepoint.
+ 2. Use the "offset" field of struct kprobe if the offset into the symbol
+ to install a probepoint is known. This field is used to calculate the
+ probepoint.
-3. Specify either the kprobe "symbol_name" OR the "addr". If both are
-specified, kprobe registration will fail with -EINVAL.
+ 3. Specify either the kprobe "symbol_name" OR the "addr". If both are
+ specified, kprobe registration will fail with -EINVAL.
-4. With CISC architectures (such as i386 and x86_64), the kprobes code
-does not validate if the kprobe.addr is at an instruction boundary.
-Use "offset" with caution.
+ 4. With CISC architectures (such as i386 and x86_64), the kprobes code
+ does not validate if the kprobe.addr is at an instruction boundary.
+ Use "offset" with caution.
register_kprobe() returns 0 on success, or a negative errno otherwise.
-User's pre-handler (kp->pre_handler):
-#include <linux/kprobes.h>
-#include <linux/ptrace.h>
-int pre_handler(struct kprobe *p, struct pt_regs *regs);
+User's pre-handler (kp->pre_handler)::
+
+ #include <linux/kprobes.h>
+ #include <linux/ptrace.h>
+ int pre_handler(struct kprobe *p, struct pt_regs *regs);
Called with p pointing to the kprobe associated with the breakpoint,
and regs pointing to the struct containing the registers saved when
the breakpoint was hit. Return 0 here unless you're a Kprobes geek.
-User's post-handler (kp->post_handler):
-#include <linux/kprobes.h>
-#include <linux/ptrace.h>
-void post_handler(struct kprobe *p, struct pt_regs *regs,
- unsigned long flags);
+User's post-handler (kp->post_handler)::
+
+ #include <linux/kprobes.h>
+ #include <linux/ptrace.h>
+ void post_handler(struct kprobe *p, struct pt_regs *regs,
+ unsigned long flags);
p and regs are as described for the pre_handler. flags always seems
to be zero.
-User's fault-handler (kp->fault_handler):
-#include <linux/kprobes.h>
-#include <linux/ptrace.h>
-int fault_handler(struct kprobe *p, struct pt_regs *regs, int trapnr);
+User's fault-handler (kp->fault_handler)::
+
+ #include <linux/kprobes.h>
+ #include <linux/ptrace.h>
+ int fault_handler(struct kprobe *p, struct pt_regs *regs, int trapnr);
p and regs are as described for the pre_handler. trapnr is the
architecture-specific trap number associated with the fault (e.g.,
on i386, 13 for a general protection fault or 14 for a page fault).
Returns 1 if it successfully handled the exception.
-4.2 register_jprobe
+register_jprobe
+---------------
-#include <linux/kprobes.h>
-int register_jprobe(struct jprobe *jp)
+::
+
+ #include <linux/kprobes.h>
+ int register_jprobe(struct jprobe *jp)
Sets a breakpoint at the address jp->kp.addr, which must be the address
of the first instruction of a function. When the breakpoint is hit,
@@ -423,10 +467,13 @@ declaration must match.
register_jprobe() returns 0 on success, or a negative errno otherwise.
-4.3 register_kretprobe
+register_kretprobe
+------------------
+
+::
-#include <linux/kprobes.h>
-int register_kretprobe(struct kretprobe *rp);
+ #include <linux/kprobes.h>
+ int register_kretprobe(struct kretprobe *rp);
Establishes a return probe for the function whose address is
rp->kp.addr. When that function returns, Kprobes calls rp->handler.
@@ -436,14 +483,17 @@ register_kretprobe(); see "How Does a Return Probe Work?" for details.
register_kretprobe() returns 0 on success, or a negative errno
otherwise.
-User's return-probe handler (rp->handler):
-#include <linux/kprobes.h>
-#include <linux/ptrace.h>
-int kretprobe_handler(struct kretprobe_instance *ri, struct pt_regs *regs);
+User's return-probe handler (rp->handler)::
+
+ #include <linux/kprobes.h>
+ #include <linux/ptrace.h>
+ int kretprobe_handler(struct kretprobe_instance *ri,
+ struct pt_regs *regs);
regs is as described for kprobe.pre_handler. ri points to the
kretprobe_instance object, of which the following fields may be
of interest:
+
- ret_addr: the return address
- rp: points to the corresponding kretprobe object
- task: points to the corresponding task struct
@@ -456,74 +506,94 @@ the architecture's ABI.
The handler's return value is currently ignored.
-4.4 unregister_*probe
+unregister_*probe
+------------------
+
+::
-#include <linux/kprobes.h>
-void unregister_kprobe(struct kprobe *kp);
-void unregister_jprobe(struct jprobe *jp);
-void unregister_kretprobe(struct kretprobe *rp);
+ #include <linux/kprobes.h>
+ void unregister_kprobe(struct kprobe *kp);
+ void unregister_jprobe(struct jprobe *jp);
+ void unregister_kretprobe(struct kretprobe *rp);
Removes the specified probe. The unregister function can be called
at any time after the probe has been registered.
-NOTE:
-If the functions find an incorrect probe (ex. an unregistered probe),
-they clear the addr field of the probe.
+.. note::
+
+ If the functions find an incorrect probe (ex. an unregistered probe),
+ they clear the addr field of the probe.
+
+register_*probes
+----------------
-4.5 register_*probes
+::
-#include <linux/kprobes.h>
-int register_kprobes(struct kprobe **kps, int num);
-int register_kretprobes(struct kretprobe **rps, int num);
-int register_jprobes(struct jprobe **jps, int num);
+ #include <linux/kprobes.h>
+ int register_kprobes(struct kprobe **kps, int num);
+ int register_kretprobes(struct kretprobe **rps, int num);
+ int register_jprobes(struct jprobe **jps, int num);
Registers each of the num probes in the specified array. If any
error occurs during registration, all probes in the array, up to
the bad probe, are safely unregistered before the register_*probes
function returns.
-- kps/rps/jps: an array of pointers to *probe data structures
+
+- kps/rps/jps: an array of pointers to ``*probe`` data structures
- num: the number of the array entries.
-NOTE:
-You have to allocate(or define) an array of pointers and set all
-of the array entries before using these functions.
+.. note::
+
+ You have to allocate(or define) an array of pointers and set all
+ of the array entries before using these functions.
-4.6 unregister_*probes
+unregister_*probes
+------------------
-#include <linux/kprobes.h>
-void unregister_kprobes(struct kprobe **kps, int num);
-void unregister_kretprobes(struct kretprobe **rps, int num);
-void unregister_jprobes(struct jprobe **jps, int num);
+::
+
+ #include <linux/kprobes.h>
+ void unregister_kprobes(struct kprobe **kps, int num);
+ void unregister_kretprobes(struct kretprobe **rps, int num);
+ void unregister_jprobes(struct jprobe **jps, int num);
Removes each of the num probes in the specified array at once.
-NOTE:
-If the functions find some incorrect probes (ex. unregistered
-probes) in the specified array, they clear the addr field of those
-incorrect probes. However, other probes in the array are
-unregistered correctly.
+.. note::
+
+ If the functions find some incorrect probes (ex. unregistered
+ probes) in the specified array, they clear the addr field of those
+ incorrect probes. However, other probes in the array are
+ unregistered correctly.
-4.7 disable_*probe
+disable_*probe
+--------------
-#include <linux/kprobes.h>
-int disable_kprobe(struct kprobe *kp);
-int disable_kretprobe(struct kretprobe *rp);
-int disable_jprobe(struct jprobe *jp);
+::
-Temporarily disables the specified *probe. You can enable it again by using
+ #include <linux/kprobes.h>
+ int disable_kprobe(struct kprobe *kp);
+ int disable_kretprobe(struct kretprobe *rp);
+ int disable_jprobe(struct jprobe *jp);
+
+Temporarily disables the specified ``*probe``. You can enable it again by using
enable_*probe(). You must specify the probe which has been registered.
-4.8 enable_*probe
+enable_*probe
+-------------
+
+::
-#include <linux/kprobes.h>
-int enable_kprobe(struct kprobe *kp);
-int enable_kretprobe(struct kretprobe *rp);
-int enable_jprobe(struct jprobe *jp);
+ #include <linux/kprobes.h>
+ int enable_kprobe(struct kprobe *kp);
+ int enable_kretprobe(struct kretprobe *rp);
+ int enable_jprobe(struct jprobe *jp);
-Enables *probe which has been disabled by disable_*probe(). You must specify
+Enables ``*probe`` which has been disabled by disable_*probe(). You must specify
the probe which has been registered.
-5. Kprobes Features and Limitations
+Kprobes Features and Limitations
+================================
Kprobes allows multiple probes at the same address. Currently,
however, there cannot be multiple jprobes on the same function at
@@ -538,7 +608,7 @@ are discussed in this section.
The register_*probe functions will return -EINVAL if you attempt
to install a probe in the code that implements Kprobes (mostly
-kernel/kprobes.c and arch/*/kernel/kprobes.c, but also functions such
+kernel/kprobes.c and ``arch/*/kernel/kprobes.c``, but also functions such
as do_page_fault and notifier_call_chain).
If you install a probe in an inline-able function, Kprobes makes
@@ -602,19 +672,21 @@ explain it, we introduce some terminology. Imagine a 3-instruction
sequence consisting of a two 2-byte instructions and one 3-byte
instruction.
- IA
- |
-[-2][-1][0][1][2][3][4][5][6][7]
- [ins1][ins2][ ins3 ]
- [<- DCR ->]
- [<- JTPR ->]
+::
-ins1: 1st Instruction
-ins2: 2nd Instruction
-ins3: 3rd Instruction
-IA: Insertion Address
-JTPR: Jump Target Prohibition Region
-DCR: Detoured Code Region
+ IA
+ |
+ [-2][-1][0][1][2][3][4][5][6][7]
+ [ins1][ins2][ ins3 ]
+ [<- DCR ->]
+ [<- JTPR ->]
+
+ ins1: 1st Instruction
+ ins2: 2nd Instruction
+ ins3: 3rd Instruction
+ IA: Insertion Address
+ JTPR: Jump Target Prohibition Region
+ DCR: Detoured Code Region
The instructions in DCR are copied to the out-of-line buffer
of the kprobe, because the bytes in DCR are replaced by
@@ -628,7 +700,8 @@ d) DCR must not straddle the border between functions.
Anyway, these limitations are checked by the in-kernel instruction
decoder, so you don't need to worry about that.
-6. Probe Overhead
+Probe Overhead
+==============
On a typical CPU in use in 2005, a kprobe hit takes 0.5 to 1.0
microseconds to process. Specifically, a benchmark that hits the same
@@ -638,70 +711,80 @@ return-probe hit typically takes 50-75% longer than a kprobe hit.
When you have a return probe set on a function, adding a kprobe at
the entry to that function adds essentially no overhead.
-Here are sample overhead figures (in usec) for different architectures.
-k = kprobe; j = jprobe; r = return probe; kr = kprobe + return probe
-on same function; jr = jprobe + return probe on same function
+Here are sample overhead figures (in usec) for different architectures::
+
+ k = kprobe; j = jprobe; r = return probe; kr = kprobe + return probe
+ on same function; jr = jprobe + return probe on same function::
-i386: Intel Pentium M, 1495 MHz, 2957.31 bogomips
-k = 0.57 usec; j = 1.00; r = 0.92; kr = 0.99; jr = 1.40
+ i386: Intel Pentium M, 1495 MHz, 2957.31 bogomips
+ k = 0.57 usec; j = 1.00; r = 0.92; kr = 0.99; jr = 1.40
-x86_64: AMD Opteron 246, 1994 MHz, 3971.48 bogomips
-k = 0.49 usec; j = 0.76; r = 0.80; kr = 0.82; jr = 1.07
+ x86_64: AMD Opteron 246, 1994 MHz, 3971.48 bogomips
+ k = 0.49 usec; j = 0.76; r = 0.80; kr = 0.82; jr = 1.07
-ppc64: POWER5 (gr), 1656 MHz (SMT disabled, 1 virtual CPU per physical CPU)
-k = 0.77 usec; j = 1.31; r = 1.26; kr = 1.45; jr = 1.99
+ ppc64: POWER5 (gr), 1656 MHz (SMT disabled, 1 virtual CPU per physical CPU)
+ k = 0.77 usec; j = 1.31; r = 1.26; kr = 1.45; jr = 1.99
-6.1 Optimized Probe Overhead
+Optimized Probe Overhead
+------------------------
Typically, an optimized kprobe hit takes 0.07 to 0.1 microseconds to
-process. Here are sample overhead figures (in usec) for x86 architectures.
-k = unoptimized kprobe, b = boosted (single-step skipped), o = optimized kprobe,
-r = unoptimized kretprobe, rb = boosted kretprobe, ro = optimized kretprobe.
+process. Here are sample overhead figures (in usec) for x86 architectures::
-i386: Intel(R) Xeon(R) E5410, 2.33GHz, 4656.90 bogomips
-k = 0.80 usec; b = 0.33; o = 0.05; r = 1.10; rb = 0.61; ro = 0.33
+ k = unoptimized kprobe, b = boosted (single-step skipped), o = optimized kprobe,
+ r = unoptimized kretprobe, rb = boosted kretprobe, ro = optimized kretprobe.
-x86-64: Intel(R) Xeon(R) E5410, 2.33GHz, 4656.90 bogomips
-k = 0.99 usec; b = 0.43; o = 0.06; r = 1.24; rb = 0.68; ro = 0.30
+ i386: Intel(R) Xeon(R) E5410, 2.33GHz, 4656.90 bogomips
+ k = 0.80 usec; b = 0.33; o = 0.05; r = 1.10; rb = 0.61; ro = 0.33
-7. TODO
+ x86-64: Intel(R) Xeon(R) E5410, 2.33GHz, 4656.90 bogomips
+ k = 0.99 usec; b = 0.43; o = 0.06; r = 1.24; rb = 0.68; ro = 0.30
+
+TODO
+====
a. SystemTap (http://sourceware.org/systemtap): Provides a simplified
-programming interface for probe-based instrumentation. Try it out.
+ programming interface for probe-based instrumentation. Try it out.
b. Kernel return probes for sparc64.
c. Support for other architectures.
d. User-space probes.
e. Watchpoint probes (which fire on data references).
-8. Kprobes Example
+Kprobes Example
+===============
See samples/kprobes/kprobe_example.c
-9. Jprobes Example
+Jprobes Example
+===============
See samples/kprobes/jprobe_example.c
-10. Kretprobes Example
+Kretprobes Example
+==================
See samples/kprobes/kretprobe_example.c
For additional information on Kprobes, refer to the following URLs:
-http://www-106.ibm.com/developerworks/library/l-kprobes.html?ca=dgr-lnxw42Kprobe
-http://www.redhat.com/magazine/005mar05/features/kprobes/
-http://www-users.cs.umn.edu/~boutcher/kprobes/
-http://www.linuxsymposium.org/2006/linuxsymposium_procv2.pdf (pages 101-115)
+
+- http://www-106.ibm.com/developerworks/library/l-kprobes.html?ca=dgr-lnxw42Kprobe
+- http://www.redhat.com/magazine/005mar05/features/kprobes/
+- http://www-users.cs.umn.edu/~boutcher/kprobes/
+- http://www.linuxsymposium.org/2006/linuxsymposium_procv2.pdf (pages 101-115)
-Appendix A: The kprobes debugfs interface
+The kprobes debugfs interface
+=============================
+
With recent kernels (> 2.6.20) the list of registered kprobes is visible
under the /sys/kernel/debug/kprobes/ directory (assuming debugfs is mounted at //sys/kernel/debug).
-/sys/kernel/debug/kprobes/list: Lists all registered probes on the system
+/sys/kernel/debug/kprobes/list: Lists all registered probes on the system::
-c015d71a k vfs_read+0x0
-c011a316 j do_fork+0x0
-c03dedc5 r tcp_v4_rcv+0x0
+ c015d71a k vfs_read+0x0
+ c011a316 j do_fork+0x0
+ c03dedc5 r tcp_v4_rcv+0x0
The first column provides the kernel address where the probe is inserted.
The second column identifies the type of probe (k - kprobe, r - kretprobe
@@ -725,17 +808,19 @@ change each probe's disabling state. This means that disabled kprobes (marked
[DISABLED]) will be not enabled if you turn ON all kprobes by this knob.
-Appendix B: The kprobes sysctl interface
+The kprobes sysctl interface
+============================
/proc/sys/debug/kprobes-optimization: Turn kprobes optimization ON/OFF.
When CONFIG_OPTPROBES=y, this sysctl interface appears and it provides
a knob to globally and forcibly turn jump optimization (see section
-1.4) ON or OFF. By default, jump optimization is allowed (ON).
-If you echo "0" to this file or set "debug.kprobes_optimization" to
-0 via sysctl, all optimized probes will be unoptimized, and any new
-probes registered after that will not be optimized. Note that this
-knob *changes* the optimized state. This means that optimized probes
-(marked [OPTIMIZED]) will be unoptimized ([OPTIMIZED] tag will be
+:ref:`kprobes_jump_optimization`) ON or OFF. By default, jump optimization
+is allowed (ON). If you echo "0" to this file or set
+"debug.kprobes_optimization" to 0 via sysctl, all optimized probes will be
+unoptimized, and any new probes registered after that will not be optimized.
+
+Note that this knob *changes* the optimized state. This means that optimized
+probes (marked [OPTIMIZED]) will be unoptimized ([OPTIMIZED] tag will be
removed). If the knob is turned on, they will be optimized again.
diff --git a/Documentation/kref.txt b/Documentation/kref.txt
index d26a27ca964d..3af384156d7e 100644
--- a/Documentation/kref.txt
+++ b/Documentation/kref.txt
@@ -1,24 +1,42 @@
+===================================================
+Adding reference counters (krefs) to kernel objects
+===================================================
+
+:Author: Corey Minyard <minyard@acm.org>
+:Author: Thomas Hellstrom <thellstrom@vmware.com>
+
+A lot of this was lifted from Greg Kroah-Hartman's 2004 OLS paper and
+presentation on krefs, which can be found at:
+
+ - http://www.kroah.com/linux/talks/ols_2004_kref_paper/Reprint-Kroah-Hartman-OLS2004.pdf
+ - http://www.kroah.com/linux/talks/ols_2004_kref_talk/
+
+Introduction
+============
krefs allow you to add reference counters to your objects. If you
have objects that are used in multiple places and passed around, and
you don't have refcounts, your code is almost certainly broken. If
you want refcounts, krefs are the way to go.
-To use a kref, add one to your data structures like:
+To use a kref, add one to your data structures like::
-struct my_data
-{
+ struct my_data
+ {
.
.
struct kref refcount;
.
.
-};
+ };
The kref can occur anywhere within the data structure.
+Initialization
+==============
+
You must initialize the kref after you allocate it. To do this, call
-kref_init as so:
+kref_init as so::
struct my_data *data;
@@ -29,18 +47,25 @@ kref_init as so:
This sets the refcount in the kref to 1.
+Kref rules
+==========
+
Once you have an initialized kref, you must follow the following
rules:
1) If you make a non-temporary copy of a pointer, especially if
it can be passed to another thread of execution, you must
- increment the refcount with kref_get() before passing it off:
+ increment the refcount with kref_get() before passing it off::
+
kref_get(&data->refcount);
+
If you already have a valid pointer to a kref-ed structure (the
refcount cannot go to zero) you may do this without a lock.
-2) When you are done with a pointer, you must call kref_put():
+2) When you are done with a pointer, you must call kref_put()::
+
kref_put(&data->refcount, data_release);
+
If this is the last reference to the pointer, the release
routine will be called. If the code never tries to get
a valid pointer to a kref-ed structure without already
@@ -53,25 +78,25 @@ rules:
structure must remain valid during the kref_get().
For example, if you allocate some data and then pass it to another
-thread to process:
+thread to process::
-void data_release(struct kref *ref)
-{
+ void data_release(struct kref *ref)
+ {
struct my_data *data = container_of(ref, struct my_data, refcount);
kfree(data);
-}
+ }
-void more_data_handling(void *cb_data)
-{
+ void more_data_handling(void *cb_data)
+ {
struct my_data *data = cb_data;
.
. do stuff with data here
.
kref_put(&data->refcount, data_release);
-}
+ }
-int my_data_handler(void)
-{
+ int my_data_handler(void)
+ {
int rv = 0;
struct my_data *data;
struct task_struct *task;
@@ -91,10 +116,10 @@ int my_data_handler(void)
.
. do stuff with data here
.
- out:
+ out:
kref_put(&data->refcount, data_release);
return rv;
-}
+ }
This way, it doesn't matter what order the two threads handle the
data, the kref_put() handles knowing when the data is not referenced
@@ -104,7 +129,7 @@ put needs no lock because nothing tries to get the data without
already holding a pointer.
Note that the "before" in rule 1 is very important. You should never
-do something like:
+do something like::
task = kthread_run(more_data_handling, data, "more_data_handling");
if (task == ERR_PTR(-ENOMEM)) {
@@ -124,14 +149,14 @@ bad style. Don't do it.
There are some situations where you can optimize the gets and puts.
For instance, if you are done with an object and enqueuing it for
something else or passing it off to something else, there is no reason
-to do a get then a put:
+to do a get then a put::
/* Silly extra get and put */
kref_get(&obj->ref);
enqueue(obj);
kref_put(&obj->ref, obj_cleanup);
-Just do the enqueue. A comment about this is always welcome:
+Just do the enqueue. A comment about this is always welcome::
enqueue(obj);
/* We are done with obj, so we pass our refcount off
@@ -142,109 +167,99 @@ instance, you have a list of items that are each kref-ed, and you wish
to get the first one. You can't just pull the first item off the list
and kref_get() it. That violates rule 3 because you are not already
holding a valid pointer. You must add a mutex (or some other lock).
-For instance:
-
-static DEFINE_MUTEX(mutex);
-static LIST_HEAD(q);
-struct my_data
-{
- struct kref refcount;
- struct list_head link;
-};
-
-static struct my_data *get_entry()
-{
- struct my_data *entry = NULL;
- mutex_lock(&mutex);
- if (!list_empty(&q)) {
- entry = container_of(q.next, struct my_data, link);
- kref_get(&entry->refcount);
+For instance::
+
+ static DEFINE_MUTEX(mutex);
+ static LIST_HEAD(q);
+ struct my_data
+ {
+ struct kref refcount;
+ struct list_head link;
+ };
+
+ static struct my_data *get_entry()
+ {
+ struct my_data *entry = NULL;
+ mutex_lock(&mutex);
+ if (!list_empty(&q)) {
+ entry = container_of(q.next, struct my_data, link);
+ kref_get(&entry->refcount);
+ }
+ mutex_unlock(&mutex);
+ return entry;
}
- mutex_unlock(&mutex);
- return entry;
-}
-static void release_entry(struct kref *ref)
-{
- struct my_data *entry = container_of(ref, struct my_data, refcount);
+ static void release_entry(struct kref *ref)
+ {
+ struct my_data *entry = container_of(ref, struct my_data, refcount);
- list_del(&entry->link);
- kfree(entry);
-}
+ list_del(&entry->link);
+ kfree(entry);
+ }
-static void put_entry(struct my_data *entry)
-{
- mutex_lock(&mutex);
- kref_put(&entry->refcount, release_entry);
- mutex_unlock(&mutex);
-}
+ static void put_entry(struct my_data *entry)
+ {
+ mutex_lock(&mutex);
+ kref_put(&entry->refcount, release_entry);
+ mutex_unlock(&mutex);
+ }
The kref_put() return value is useful if you do not want to hold the
lock during the whole release operation. Say you didn't want to call
kfree() with the lock held in the example above (since it is kind of
-pointless to do so). You could use kref_put() as follows:
+pointless to do so). You could use kref_put() as follows::
-static void release_entry(struct kref *ref)
-{
- /* All work is done after the return from kref_put(). */
-}
+ static void release_entry(struct kref *ref)
+ {
+ /* All work is done after the return from kref_put(). */
+ }
-static void put_entry(struct my_data *entry)
-{
- mutex_lock(&mutex);
- if (kref_put(&entry->refcount, release_entry)) {
- list_del(&entry->link);
- mutex_unlock(&mutex);
- kfree(entry);
- } else
- mutex_unlock(&mutex);
-}
+ static void put_entry(struct my_data *entry)
+ {
+ mutex_lock(&mutex);
+ if (kref_put(&entry->refcount, release_entry)) {
+ list_del(&entry->link);
+ mutex_unlock(&mutex);
+ kfree(entry);
+ } else
+ mutex_unlock(&mutex);
+ }
This is really more useful if you have to call other routines as part
of the free operations that could take a long time or might claim the
same lock. Note that doing everything in the release routine is still
preferred as it is a little neater.
-
-Corey Minyard <minyard@acm.org>
-
-A lot of this was lifted from Greg Kroah-Hartman's 2004 OLS paper and
-presentation on krefs, which can be found at:
- http://www.kroah.com/linux/talks/ols_2004_kref_paper/Reprint-Kroah-Hartman-OLS2004.pdf
-and:
- http://www.kroah.com/linux/talks/ols_2004_kref_talk/
-
-
The above example could also be optimized using kref_get_unless_zero() in
-the following way:
-
-static struct my_data *get_entry()
-{
- struct my_data *entry = NULL;
- mutex_lock(&mutex);
- if (!list_empty(&q)) {
- entry = container_of(q.next, struct my_data, link);
- if (!kref_get_unless_zero(&entry->refcount))
- entry = NULL;
+the following way::
+
+ static struct my_data *get_entry()
+ {
+ struct my_data *entry = NULL;
+ mutex_lock(&mutex);
+ if (!list_empty(&q)) {
+ entry = container_of(q.next, struct my_data, link);
+ if (!kref_get_unless_zero(&entry->refcount))
+ entry = NULL;
+ }
+ mutex_unlock(&mutex);
+ return entry;
}
- mutex_unlock(&mutex);
- return entry;
-}
-static void release_entry(struct kref *ref)
-{
- struct my_data *entry = container_of(ref, struct my_data, refcount);
+ static void release_entry(struct kref *ref)
+ {
+ struct my_data *entry = container_of(ref, struct my_data, refcount);
- mutex_lock(&mutex);
- list_del(&entry->link);
- mutex_unlock(&mutex);
- kfree(entry);
-}
+ mutex_lock(&mutex);
+ list_del(&entry->link);
+ mutex_unlock(&mutex);
+ kfree(entry);
+ }
-static void put_entry(struct my_data *entry)
-{
- kref_put(&entry->refcount, release_entry);
-}
+ static void put_entry(struct my_data *entry)
+ {
+ kref_put(&entry->refcount, release_entry);
+ }
Which is useful to remove the mutex lock around kref_put() in put_entry(), but
it's important that kref_get_unless_zero is enclosed in the same critical
@@ -254,51 +269,51 @@ Note that it is illegal to use kref_get_unless_zero without checking its
return value. If you are sure (by already having a valid pointer) that
kref_get_unless_zero() will return true, then use kref_get() instead.
-The function kref_get_unless_zero also makes it possible to use rcu
-locking for lookups in the above example:
+Krefs and RCU
+=============
-struct my_data
-{
- struct rcu_head rhead;
- .
- struct kref refcount;
- .
- .
-};
-
-static struct my_data *get_entry_rcu()
-{
- struct my_data *entry = NULL;
- rcu_read_lock();
- if (!list_empty(&q)) {
- entry = container_of(q.next, struct my_data, link);
- if (!kref_get_unless_zero(&entry->refcount))
- entry = NULL;
+The function kref_get_unless_zero also makes it possible to use rcu
+locking for lookups in the above example::
+
+ struct my_data
+ {
+ struct rcu_head rhead;
+ .
+ struct kref refcount;
+ .
+ .
+ };
+
+ static struct my_data *get_entry_rcu()
+ {
+ struct my_data *entry = NULL;
+ rcu_read_lock();
+ if (!list_empty(&q)) {
+ entry = container_of(q.next, struct my_data, link);
+ if (!kref_get_unless_zero(&entry->refcount))
+ entry = NULL;
+ }
+ rcu_read_unlock();
+ return entry;
}
- rcu_read_unlock();
- return entry;
-}
-static void release_entry_rcu(struct kref *ref)
-{
- struct my_data *entry = container_of(ref, struct my_data, refcount);
+ static void release_entry_rcu(struct kref *ref)
+ {
+ struct my_data *entry = container_of(ref, struct my_data, refcount);
- mutex_lock(&mutex);
- list_del_rcu(&entry->link);
- mutex_unlock(&mutex);
- kfree_rcu(entry, rhead);
-}
+ mutex_lock(&mutex);
+ list_del_rcu(&entry->link);
+ mutex_unlock(&mutex);
+ kfree_rcu(entry, rhead);
+ }
-static void put_entry(struct my_data *entry)
-{
- kref_put(&entry->refcount, release_entry_rcu);
-}
+ static void put_entry(struct my_data *entry)
+ {
+ kref_put(&entry->refcount, release_entry_rcu);
+ }
But note that the struct kref member needs to remain in valid memory for a
rcu grace period after release_entry_rcu was called. That can be accomplished
by using kfree_rcu(entry, rhead) as done above, or by calling synchronize_rcu()
before using kfree, but note that synchronize_rcu() may sleep for a
substantial amount of time.
-
-
-Thomas Hellstrom <thellstrom@vmware.com>
diff --git a/Documentation/kselftest.txt b/Documentation/kselftest.txt
deleted file mode 100644
index 5bd590335839..000000000000
--- a/Documentation/kselftest.txt
+++ /dev/null
@@ -1,109 +0,0 @@
-Linux Kernel Selftests
-
-The kernel contains a set of "self tests" under the tools/testing/selftests/
-directory. These are intended to be small tests to exercise individual code
-paths in the kernel. Tests are intended to be run after building, installing
-and booting a kernel.
-
-On some systems, hot-plug tests could hang forever waiting for cpu and
-memory to be ready to be offlined. A special hot-plug target is created
-to run full range of hot-plug tests. In default mode, hot-plug tests run
-in safe mode with a limited scope. In limited mode, cpu-hotplug test is
-run on a single cpu as opposed to all hotplug capable cpus, and memory
-hotplug test is run on 2% of hotplug capable memory instead of 10%.
-
-Running the selftests (hotplug tests are run in limited mode)
-=============================================================
-
-To build the tests:
- $ make -C tools/testing/selftests
-
-
-To run the tests:
- $ make -C tools/testing/selftests run_tests
-
-To build and run the tests with a single command, use:
- $ make kselftest
-
-- note that some tests will require root privileges.
-
-
-Running a subset of selftests
-========================================
-You can use the "TARGETS" variable on the make command line to specify
-single test to run, or a list of tests to run.
-
-To run only tests targeted for a single subsystem:
- $ make -C tools/testing/selftests TARGETS=ptrace run_tests
-
-You can specify multiple tests to build and run:
- $ make TARGETS="size timers" kselftest
-
-See the top-level tools/testing/selftests/Makefile for the list of all
-possible targets.
-
-
-Running the full range hotplug selftests
-========================================
-
-To build the hotplug tests:
- $ make -C tools/testing/selftests hotplug
-
-To run the hotplug tests:
- $ make -C tools/testing/selftests run_hotplug
-
-- note that some tests will require root privileges.
-
-
-Install selftests
-=================
-
-You can use kselftest_install.sh tool installs selftests in default
-location which is tools/testing/selftests/kselftest or a user specified
-location.
-
-To install selftests in default location:
- $ cd tools/testing/selftests
- $ ./kselftest_install.sh
-
-To install selftests in a user specified location:
- $ cd tools/testing/selftests
- $ ./kselftest_install.sh install_dir
-
-Running installed selftests
-===========================
-
-Kselftest install as well as the Kselftest tarball provide a script
-named "run_kselftest.sh" to run the tests.
-
-You can simply do the following to run the installed Kselftests. Please
-note some tests will require root privileges.
-
-cd kselftest
-./run_kselftest.sh
-
-Contributing new tests
-======================
-
-In general, the rules for selftests are
-
- * Do as much as you can if you're not root;
-
- * Don't take too long;
-
- * Don't break the build on any architecture, and
-
- * Don't cause the top-level "make run_tests" to fail if your feature is
- unconfigured.
-
-Contributing new tests(details)
-===============================
-
- * Use TEST_GEN_XXX if such binaries or files are generated during
- compiling.
- TEST_PROGS, TEST_GEN_PROGS mean it is the excutable tested by
- default.
- TEST_PROGS_EXTENDED, TEST_GEN_PROGS_EXTENDED mean it is the
- executable which is not tested by default.
- TEST_FILES, TEST_GEN_FILES mean it is the file which is used by
- test.
diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt
index ba2e7d254842..00b6dfed573c 100644
--- a/Documentation/laptops/thinkpad-acpi.txt
+++ b/Documentation/laptops/thinkpad-acpi.txt
@@ -121,8 +121,9 @@ space, for 2.6.23+ this is /sys/devices/platform/thinkpad_acpi/.
Sysfs device attributes for the sensors and fan are on the
thinkpad_hwmon device's sysfs attribute space, but you should locate it
looking for a hwmon device with the name attribute of "thinkpad", or
-better yet, through libsensors.
-
+better yet, through libsensors. For 4.14+ sysfs attributes were moved to the
+hwmon device (/sys/bus/platform/devices/thinkpad_hwmon/hwmon/hwmon? or
+/sys/class/hwmon/hwmon?).
Driver version
--------------
@@ -1478,3 +1479,7 @@ Sysfs interface changelog:
0x020700: Support for mute-only mixers.
Volume control in read-only mode by default.
Marker for ALSA mixer support.
+
+0x030000: Thermal and fan sysfs attributes were moved to the hwmon
+ device instead of being attached to the backing platform
+ device.
diff --git a/Documentation/ldm.txt b/Documentation/ldm.txt
index 4f80edd14d0a..12c571368e73 100644
--- a/Documentation/ldm.txt
+++ b/Documentation/ldm.txt
@@ -1,9 +1,9 @@
+==========================================
+LDM - Logical Disk Manager (Dynamic Disks)
+==========================================
- LDM - Logical Disk Manager (Dynamic Disks)
- ------------------------------------------
-
-Originally Written by FlatCap - Richard Russon <ldm@flatcap.org>.
-Last Updated by Anton Altaparmakov on 30 March 2007 for Windows Vista.
+:Author: Originally Written by FlatCap - Richard Russon <ldm@flatcap.org>.
+:Last Updated: Anton Altaparmakov on 30 March 2007 for Windows Vista.
Overview
--------
@@ -37,24 +37,36 @@ Example
-------
Below we have a 50MiB disk, divided into seven partitions.
-N.B. The missing 1MiB at the end of the disk is where the LDM database is
- stored.
-
- Device | Offset Bytes Sectors MiB | Size Bytes Sectors MiB
- -------+----------------------------+---------------------------
- hda | 0 0 0 | 52428800 102400 50
- hda1 | 51380224 100352 49 | 1048576 2048 1
- hda2 | 16384 32 0 | 6979584 13632 6
- hda3 | 6995968 13664 6 | 10485760 20480 10
- hda4 | 17481728 34144 16 | 4194304 8192 4
- hda5 | 21676032 42336 20 | 5242880 10240 5
- hda6 | 26918912 52576 25 | 10485760 20480 10
- hda7 | 37404672 73056 35 | 13959168 27264 13
+
+.. note::
+
+ The missing 1MiB at the end of the disk is where the LDM database is
+ stored.
+
++-------++--------------+---------+-----++--------------+---------+----+
+|Device || Offset Bytes | Sectors | MiB || Size Bytes | Sectors | MiB|
++=======++==============+=========+=====++==============+=========+====+
+|hda || 0 | 0 | 0 || 52428800 | 102400 | 50|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda1 || 51380224 | 100352 | 49 || 1048576 | 2048 | 1|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda2 || 16384 | 32 | 0 || 6979584 | 13632 | 6|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda3 || 6995968 | 13664 | 6 || 10485760 | 20480 | 10|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda4 || 17481728 | 34144 | 16 || 4194304 | 8192 | 4|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda5 || 21676032 | 42336 | 20 || 5242880 | 10240 | 5|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda6 || 26918912 | 52576 | 25 || 10485760 | 20480 | 10|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda7 || 37404672 | 73056 | 35 || 13959168 | 27264 | 13|
++-------++--------------+---------+-----++--------------+---------+----+
The LDM Database may not store the partitions in the order that they appear on
disk, but the driver will sort them.
-When Linux boots, you will see something like:
+When Linux boots, you will see something like::
hda: 102400 sectors w/32KiB Cache, CHS=50/64/32
hda: [LDM] hda1 hda2 hda3 hda4 hda5 hda6 hda7
@@ -65,13 +77,13 @@ Compiling LDM Support
To enable LDM, choose the following two options:
- "Advanced partition selection" CONFIG_PARTITION_ADVANCED
- "Windows Logical Disk Manager (Dynamic Disk) support" CONFIG_LDM_PARTITION
+ - "Advanced partition selection" CONFIG_PARTITION_ADVANCED
+ - "Windows Logical Disk Manager (Dynamic Disk) support" CONFIG_LDM_PARTITION
If you believe the driver isn't working as it should, you can enable the extra
debugging code. This will produce a LOT of output. The option is:
- "Windows LDM extra logging" CONFIG_LDM_DEBUG
+ - "Windows LDM extra logging" CONFIG_LDM_DEBUG
N.B. The partition code cannot be compiled as a module.
diff --git a/Documentation/locking/crossrelease.txt b/Documentation/locking/crossrelease.txt
new file mode 100644
index 000000000000..bdf1423d5f99
--- /dev/null
+++ b/Documentation/locking/crossrelease.txt
@@ -0,0 +1,874 @@
+Crossrelease
+============
+
+Started by Byungchul Park <byungchul.park@lge.com>
+
+Contents:
+
+ (*) Background
+
+ - What causes deadlock
+ - How lockdep works
+
+ (*) Limitation
+
+ - Limit lockdep
+ - Pros from the limitation
+ - Cons from the limitation
+ - Relax the limitation
+
+ (*) Crossrelease
+
+ - Introduce crossrelease
+ - Introduce commit
+
+ (*) Implementation
+
+ - Data structures
+ - How crossrelease works
+
+ (*) Optimizations
+
+ - Avoid duplication
+ - Lockless for hot paths
+
+ (*) APPENDIX A: What lockdep does to work aggresively
+
+ (*) APPENDIX B: How to avoid adding false dependencies
+
+
+==========
+Background
+==========
+
+What causes deadlock
+--------------------
+
+A deadlock occurs when a context is waiting for an event to happen,
+which is impossible because another (or the) context who can trigger the
+event is also waiting for another (or the) event to happen, which is
+also impossible due to the same reason.
+
+For example:
+
+ A context going to trigger event C is waiting for event A to happen.
+ A context going to trigger event A is waiting for event B to happen.
+ A context going to trigger event B is waiting for event C to happen.
+
+A deadlock occurs when these three wait operations run at the same time,
+because event C cannot be triggered if event A does not happen, which in
+turn cannot be triggered if event B does not happen, which in turn
+cannot be triggered if event C does not happen. After all, no event can
+be triggered since any of them never meets its condition to wake up.
+
+A dependency might exist between two waiters and a deadlock might happen
+due to an incorrect releationship between dependencies. Thus, we must
+define what a dependency is first. A dependency exists between them if:
+
+ 1. There are two waiters waiting for each event at a given time.
+ 2. The only way to wake up each waiter is to trigger its event.
+ 3. Whether one can be woken up depends on whether the other can.
+
+Each wait in the example creates its dependency like:
+
+ Event C depends on event A.
+ Event A depends on event B.
+ Event B depends on event C.
+
+ NOTE: Precisely speaking, a dependency is one between whether a
+ waiter for an event can be woken up and whether another waiter for
+ another event can be woken up. However from now on, we will describe
+ a dependency as if it's one between an event and another event for
+ simplicity.
+
+And they form circular dependencies like:
+
+ -> C -> A -> B -
+ / \
+ \ /
+ ----------------
+
+ where 'A -> B' means that event A depends on event B.
+
+Such circular dependencies lead to a deadlock since no waiter can meet
+its condition to wake up as described.
+
+CONCLUSION
+
+Circular dependencies cause a deadlock.
+
+
+How lockdep works
+-----------------
+
+Lockdep tries to detect a deadlock by checking dependencies created by
+lock operations, acquire and release. Waiting for a lock corresponds to
+waiting for an event, and releasing a lock corresponds to triggering an
+event in the previous section.
+
+In short, lockdep does:
+
+ 1. Detect a new dependency.
+ 2. Add the dependency into a global graph.
+ 3. Check if that makes dependencies circular.
+ 4. Report a deadlock or its possibility if so.
+
+For example, consider a graph built by lockdep that looks like:
+
+ A -> B -
+ \
+ -> E
+ /
+ C -> D -
+
+ where A, B,..., E are different lock classes.
+
+Lockdep will add a dependency into the graph on detection of a new
+dependency. For example, it will add a dependency 'E -> C' when a new
+dependency between lock E and lock C is detected. Then the graph will be:
+
+ A -> B -
+ \
+ -> E -
+ / \
+ -> C -> D - \
+ / /
+ \ /
+ ------------------
+
+ where A, B,..., E are different lock classes.
+
+This graph contains a subgraph which demonstrates circular dependencies:
+
+ -> E -
+ / \
+ -> C -> D - \
+ / /
+ \ /
+ ------------------
+
+ where C, D and E are different lock classes.
+
+This is the condition under which a deadlock might occur. Lockdep
+reports it on detection after adding a new dependency. This is the way
+how lockdep works.
+
+CONCLUSION
+
+Lockdep detects a deadlock or its possibility by checking if circular
+dependencies were created after adding each new dependency.
+
+
+==========
+Limitation
+==========
+
+Limit lockdep
+-------------
+
+Limiting lockdep to work on only typical locks e.g. spin locks and
+mutexes, which are released within the acquire context, the
+implementation becomes simple but its capacity for detection becomes
+limited. Let's check pros and cons in next section.
+
+
+Pros from the limitation
+------------------------
+
+Given the limitation, when acquiring a lock, locks in a held_locks
+cannot be released if the context cannot acquire it so has to wait to
+acquire it, which means all waiters for the locks in the held_locks are
+stuck. It's an exact case to create dependencies between each lock in
+the held_locks and the lock to acquire.
+
+For example:
+
+ CONTEXT X
+ ---------
+ acquire A
+ acquire B /* Add a dependency 'A -> B' */
+ release B
+ release A
+
+ where A and B are different lock classes.
+
+When acquiring lock A, the held_locks of CONTEXT X is empty thus no
+dependency is added. But when acquiring lock B, lockdep detects and adds
+a new dependency 'A -> B' between lock A in the held_locks and lock B.
+They can be simply added whenever acquiring each lock.
+
+And data required by lockdep exists in a local structure, held_locks
+embedded in task_struct. Forcing to access the data within the context,
+lockdep can avoid racy problems without explicit locks while handling
+the local data.
+
+Lastly, lockdep only needs to keep locks currently being held, to build
+a dependency graph. However, relaxing the limitation, it needs to keep
+even locks already released, because a decision whether they created
+dependencies might be long-deferred.
+
+To sum up, we can expect several advantages from the limitation:
+
+ 1. Lockdep can easily identify a dependency when acquiring a lock.
+ 2. Races are avoidable while accessing local locks in a held_locks.
+ 3. Lockdep only needs to keep locks currently being held.
+
+CONCLUSION
+
+Given the limitation, the implementation becomes simple and efficient.
+
+
+Cons from the limitation
+------------------------
+
+Given the limitation, lockdep is applicable only to typical locks. For
+example, page locks for page access or completions for synchronization
+cannot work with lockdep.
+
+Can we detect deadlocks below, under the limitation?
+
+Example 1:
+
+ CONTEXT X CONTEXT Y CONTEXT Z
+ --------- --------- ----------
+ mutex_lock A
+ lock_page B
+ lock_page B
+ mutex_lock A /* DEADLOCK */
+ unlock_page B held by X
+ unlock_page B
+ mutex_unlock A
+ mutex_unlock A
+
+ where A and B are different lock classes.
+
+No, we cannot.
+
+Example 2:
+
+ CONTEXT X CONTEXT Y
+ --------- ---------
+ mutex_lock A
+ mutex_lock A
+ wait_for_complete B /* DEADLOCK */
+ complete B
+ mutex_unlock A
+ mutex_unlock A
+
+ where A is a lock class and B is a completion variable.
+
+No, we cannot.
+
+CONCLUSION
+
+Given the limitation, lockdep cannot detect a deadlock or its
+possibility caused by page locks or completions.
+
+
+Relax the limitation
+--------------------
+
+Under the limitation, things to create dependencies are limited to
+typical locks. However, synchronization primitives like page locks and
+completions, which are allowed to be released in any context, also
+create dependencies and can cause a deadlock. So lockdep should track
+these locks to do a better job. We have to relax the limitation for
+these locks to work with lockdep.
+
+Detecting dependencies is very important for lockdep to work because
+adding a dependency means adding an opportunity to check whether it
+causes a deadlock. The more lockdep adds dependencies, the more it
+thoroughly works. Thus Lockdep has to do its best to detect and add as
+many true dependencies into a graph as possible.
+
+For example, considering only typical locks, lockdep builds a graph like:
+
+ A -> B -
+ \
+ -> E
+ /
+ C -> D -
+
+ where A, B,..., E are different lock classes.
+
+On the other hand, under the relaxation, additional dependencies might
+be created and added. Assuming additional 'FX -> C' and 'E -> GX' are
+added thanks to the relaxation, the graph will be:
+
+ A -> B -
+ \
+ -> E -> GX
+ /
+ FX -> C -> D -
+
+ where A, B,..., E, FX and GX are different lock classes, and a suffix
+ 'X' is added on non-typical locks.
+
+The latter graph gives us more chances to check circular dependencies
+than the former. However, it might suffer performance degradation since
+relaxing the limitation, with which design and implementation of lockdep
+can be efficient, might introduce inefficiency inevitably. So lockdep
+should provide two options, strong detection and efficient detection.
+
+Choosing efficient detection:
+
+ Lockdep works with only locks restricted to be released within the
+ acquire context. However, lockdep works efficiently.
+
+Choosing strong detection:
+
+ Lockdep works with all synchronization primitives. However, lockdep
+ suffers performance degradation.
+
+CONCLUSION
+
+Relaxing the limitation, lockdep can add additional dependencies giving
+additional opportunities to check circular dependencies.
+
+
+============
+Crossrelease
+============
+
+Introduce crossrelease
+----------------------
+
+In order to allow lockdep to handle additional dependencies by what
+might be released in any context, namely 'crosslock', we have to be able
+to identify those created by crosslocks. The proposed 'crossrelease'
+feature provoides a way to do that.
+
+Crossrelease feature has to do:
+
+ 1. Identify dependencies created by crosslocks.
+ 2. Add the dependencies into a dependency graph.
+
+That's all. Once a meaningful dependency is added into graph, then
+lockdep would work with the graph as it did. The most important thing
+crossrelease feature has to do is to correctly identify and add true
+dependencies into the global graph.
+
+A dependency e.g. 'A -> B' can be identified only in the A's release
+context because a decision required to identify the dependency can be
+made only in the release context. That is to decide whether A can be
+released so that a waiter for A can be woken up. It cannot be made in
+other than the A's release context.
+
+It's no matter for typical locks because each acquire context is same as
+its release context, thus lockdep can decide whether a lock can be
+released in the acquire context. However for crosslocks, lockdep cannot
+make the decision in the acquire context but has to wait until the
+release context is identified.
+
+Therefore, deadlocks by crosslocks cannot be detected just when it
+happens, because those cannot be identified until the crosslocks are
+released. However, deadlock possibilities can be detected and it's very
+worth. See 'APPENDIX A' section to check why.
+
+CONCLUSION
+
+Using crossrelease feature, lockdep can work with what might be released
+in any context, namely crosslock.
+
+
+Introduce commit
+----------------
+
+Since crossrelease defers the work adding true dependencies of
+crosslocks until they are actually released, crossrelease has to queue
+all acquisitions which might create dependencies with the crosslocks.
+Then it identifies dependencies using the queued data in batches at a
+proper time. We call it 'commit'.
+
+There are four types of dependencies:
+
+1. TT type: 'typical lock A -> typical lock B'
+
+ Just when acquiring B, lockdep can see it's in the A's release
+ context. So the dependency between A and B can be identified
+ immediately. Commit is unnecessary.
+
+2. TC type: 'typical lock A -> crosslock BX'
+
+ Just when acquiring BX, lockdep can see it's in the A's release
+ context. So the dependency between A and BX can be identified
+ immediately. Commit is unnecessary, too.
+
+3. CT type: 'crosslock AX -> typical lock B'
+
+ When acquiring B, lockdep cannot identify the dependency because
+ there's no way to know if it's in the AX's release context. It has
+ to wait until the decision can be made. Commit is necessary.
+
+4. CC type: 'crosslock AX -> crosslock BX'
+
+ When acquiring BX, lockdep cannot identify the dependency because
+ there's no way to know if it's in the AX's release context. It has
+ to wait until the decision can be made. Commit is necessary.
+ But, handling CC type is not implemented yet. It's a future work.
+
+Lockdep can work without commit for typical locks, but commit step is
+necessary once crosslocks are involved. Introducing commit, lockdep
+performs three steps. What lockdep does in each step is:
+
+1. Acquisition: For typical locks, lockdep does what it originally did
+ and queues the lock so that CT type dependencies can be checked using
+ it at the commit step. For crosslocks, it saves data which will be
+ used at the commit step and increases a reference count for it.
+
+2. Commit: No action is reauired for typical locks. For crosslocks,
+ lockdep adds CT type dependencies using the data saved at the
+ acquisition step.
+
+3. Release: No changes are required for typical locks. When a crosslock
+ is released, it decreases a reference count for it.
+
+CONCLUSION
+
+Crossrelease introduces commit step to handle dependencies of crosslocks
+in batches at a proper time.
+
+
+==============
+Implementation
+==============
+
+Data structures
+---------------
+
+Crossrelease introduces two main data structures.
+
+1. hist_lock
+
+ This is an array embedded in task_struct, for keeping lock history so
+ that dependencies can be added using them at the commit step. Since
+ it's local data, it can be accessed locklessly in the owner context.
+ The array is filled at the acquisition step and consumed at the
+ commit step. And it's managed in circular manner.
+
+2. cross_lock
+
+ One per lockdep_map exists. This is for keeping data of crosslocks
+ and used at the commit step.
+
+
+How crossrelease works
+----------------------
+
+It's the key of how crossrelease works, to defer necessary works to an
+appropriate point in time and perform in at once at the commit step.
+Let's take a look with examples step by step, starting from how lockdep
+works without crossrelease for typical locks.
+
+ acquire A /* Push A onto held_locks */
+ acquire B /* Push B onto held_locks and add 'A -> B' */
+ acquire C /* Push C onto held_locks and add 'B -> C' */
+ release C /* Pop C from held_locks */
+ release B /* Pop B from held_locks */
+ release A /* Pop A from held_locks */
+
+ where A, B and C are different lock classes.
+
+ NOTE: This document assumes that readers already understand how
+ lockdep works without crossrelease thus omits details. But there's
+ one thing to note. Lockdep pretends to pop a lock from held_locks
+ when releasing it. But it's subtly different from the original pop
+ operation because lockdep allows other than the top to be poped.
+
+In this case, lockdep adds 'the top of held_locks -> the lock to acquire'
+dependency every time acquiring a lock.
+
+After adding 'A -> B', a dependency graph will be:
+
+ A -> B
+
+ where A and B are different lock classes.
+
+And after adding 'B -> C', the graph will be:
+
+ A -> B -> C
+
+ where A, B and C are different lock classes.
+
+Let's performs commit step even for typical locks to add dependencies.
+Of course, commit step is not necessary for them, however, it would work
+well because this is a more general way.
+
+ acquire A
+ /*
+ * Queue A into hist_locks
+ *
+ * In hist_locks: A
+ * In graph: Empty
+ */
+
+ acquire B
+ /*
+ * Queue B into hist_locks
+ *
+ * In hist_locks: A, B
+ * In graph: Empty
+ */
+
+ acquire C
+ /*
+ * Queue C into hist_locks
+ *
+ * In hist_locks: A, B, C
+ * In graph: Empty
+ */
+
+ commit C
+ /*
+ * Add 'C -> ?'
+ * Answer the following to decide '?'
+ * What has been queued since acquire C: Nothing
+ *
+ * In hist_locks: A, B, C
+ * In graph: Empty
+ */
+
+ release C
+
+ commit B
+ /*
+ * Add 'B -> ?'
+ * Answer the following to decide '?'
+ * What has been queued since acquire B: C
+ *
+ * In hist_locks: A, B, C
+ * In graph: 'B -> C'
+ */
+
+ release B
+
+ commit A
+ /*
+ * Add 'A -> ?'
+ * Answer the following to decide '?'
+ * What has been queued since acquire A: B, C
+ *
+ * In hist_locks: A, B, C
+ * In graph: 'B -> C', 'A -> B', 'A -> C'
+ */
+
+ release A
+
+ where A, B and C are different lock classes.
+
+In this case, dependencies are added at the commit step as described.
+
+After commits for A, B and C, the graph will be:
+
+ A -> B -> C
+
+ where A, B and C are different lock classes.
+
+ NOTE: A dependency 'A -> C' is optimized out.
+
+We can see the former graph built without commit step is same as the
+latter graph built using commit steps. Of course the former way leads to
+earlier finish for building the graph, which means we can detect a
+deadlock or its possibility sooner. So the former way would be prefered
+when possible. But we cannot avoid using the latter way for crosslocks.
+
+Let's look at how commit steps work for crosslocks. In this case, the
+commit step is performed only on crosslock AX as real. And it assumes
+that the AX release context is different from the AX acquire context.
+
+ BX RELEASE CONTEXT BX ACQUIRE CONTEXT
+ ------------------ ------------------
+ acquire A
+ /*
+ * Push A onto held_locks
+ * Queue A into hist_locks
+ *
+ * In held_locks: A
+ * In hist_locks: A
+ * In graph: Empty
+ */
+
+ acquire BX
+ /*
+ * Add 'the top of held_locks -> BX'
+ *
+ * In held_locks: A
+ * In hist_locks: A
+ * In graph: 'A -> BX'
+ */
+
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ It must be guaranteed that the following operations are seen after
+ acquiring BX globally. It can be done by things like barrier.
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ acquire C
+ /*
+ * Push C onto held_locks
+ * Queue C into hist_locks
+ *
+ * In held_locks: C
+ * In hist_locks: C
+ * In graph: 'A -> BX'
+ */
+
+ release C
+ /*
+ * Pop C from held_locks
+ *
+ * In held_locks: Empty
+ * In hist_locks: C
+ * In graph: 'A -> BX'
+ */
+ acquire D
+ /*
+ * Push D onto held_locks
+ * Queue D into hist_locks
+ * Add 'the top of held_locks -> D'
+ *
+ * In held_locks: A, D
+ * In hist_locks: A, D
+ * In graph: 'A -> BX', 'A -> D'
+ */
+ acquire E
+ /*
+ * Push E onto held_locks
+ * Queue E into hist_locks
+ *
+ * In held_locks: E
+ * In hist_locks: C, E
+ * In graph: 'A -> BX', 'A -> D'
+ */
+
+ release E
+ /*
+ * Pop E from held_locks
+ *
+ * In held_locks: Empty
+ * In hist_locks: D, E
+ * In graph: 'A -> BX', 'A -> D'
+ */
+ release D
+ /*
+ * Pop D from held_locks
+ *
+ * In held_locks: A
+ * In hist_locks: A, D
+ * In graph: 'A -> BX', 'A -> D'
+ */
+ commit BX
+ /*
+ * Add 'BX -> ?'
+ * What has been queued since acquire BX: C, E
+ *
+ * In held_locks: Empty
+ * In hist_locks: D, E
+ * In graph: 'A -> BX', 'A -> D',
+ * 'BX -> C', 'BX -> E'
+ */
+
+ release BX
+ /*
+ * In held_locks: Empty
+ * In hist_locks: D, E
+ * In graph: 'A -> BX', 'A -> D',
+ * 'BX -> C', 'BX -> E'
+ */
+ release A
+ /*
+ * Pop A from held_locks
+ *
+ * In held_locks: Empty
+ * In hist_locks: A, D
+ * In graph: 'A -> BX', 'A -> D',
+ * 'BX -> C', 'BX -> E'
+ */
+
+ where A, BX, C,..., E are different lock classes, and a suffix 'X' is
+ added on crosslocks.
+
+Crossrelease considers all acquisitions after acqiuring BX are
+candidates which might create dependencies with BX. True dependencies
+will be determined when identifying the release context of BX. Meanwhile,
+all typical locks are queued so that they can be used at the commit step.
+And then two dependencies 'BX -> C' and 'BX -> E' are added at the
+commit step when identifying the release context.
+
+The final graph will be, with crossrelease:
+
+ -> C
+ /
+ -> BX -
+ / \
+ A - -> E
+ \
+ -> D
+
+ where A, BX, C,..., E are different lock classes, and a suffix 'X' is
+ added on crosslocks.
+
+However, the final graph will be, without crossrelease:
+
+ A -> D
+
+ where A and D are different lock classes.
+
+The former graph has three more dependencies, 'A -> BX', 'BX -> C' and
+'BX -> E' giving additional opportunities to check if they cause
+deadlocks. This way lockdep can detect a deadlock or its possibility
+caused by crosslocks.
+
+CONCLUSION
+
+We checked how crossrelease works with several examples.
+
+
+=============
+Optimizations
+=============
+
+Avoid duplication
+-----------------
+
+Crossrelease feature uses a cache like what lockdep already uses for
+dependency chains, but this time it's for caching CT type dependencies.
+Once that dependency is cached, the same will never be added again.
+
+
+Lockless for hot paths
+----------------------
+
+To keep all locks for later use at the commit step, crossrelease adopts
+a local array embedded in task_struct, which makes access to the data
+lockless by forcing it to happen only within the owner context. It's
+like how lockdep handles held_locks. Lockless implmentation is important
+since typical locks are very frequently acquired and released.
+
+
+=================================================
+APPENDIX A: What lockdep does to work aggresively
+=================================================
+
+A deadlock actually occurs when all wait operations creating circular
+dependencies run at the same time. Even though they don't, a potential
+deadlock exists if the problematic dependencies exist. Thus it's
+meaningful to detect not only an actual deadlock but also its potential
+possibility. The latter is rather valuable. When a deadlock occurs
+actually, we can identify what happens in the system by some means or
+other even without lockdep. However, there's no way to detect possiblity
+without lockdep unless the whole code is parsed in head. It's terrible.
+Lockdep does the both, and crossrelease only focuses on the latter.
+
+Whether or not a deadlock actually occurs depends on several factors.
+For example, what order contexts are switched in is a factor. Assuming
+circular dependencies exist, a deadlock would occur when contexts are
+switched so that all wait operations creating the dependencies run
+simultaneously. Thus to detect a deadlock possibility even in the case
+that it has not occured yet, lockdep should consider all possible
+combinations of dependencies, trying to:
+
+1. Use a global dependency graph.
+
+ Lockdep combines all dependencies into one global graph and uses them,
+ regardless of which context generates them or what order contexts are
+ switched in. Aggregated dependencies are only considered so they are
+ prone to be circular if a problem exists.
+
+2. Check dependencies between classes instead of instances.
+
+ What actually causes a deadlock are instances of lock. However,
+ lockdep checks dependencies between classes instead of instances.
+ This way lockdep can detect a deadlock which has not happened but
+ might happen in future by others but the same class.
+
+3. Assume all acquisitions lead to waiting.
+
+ Although locks might be acquired without waiting which is essential
+ to create dependencies, lockdep assumes all acquisitions lead to
+ waiting since it might be true some time or another.
+
+CONCLUSION
+
+Lockdep detects not only an actual deadlock but also its possibility,
+and the latter is more valuable.
+
+
+==================================================
+APPENDIX B: How to avoid adding false dependencies
+==================================================
+
+Remind what a dependency is. A dependency exists if:
+
+ 1. There are two waiters waiting for each event at a given time.
+ 2. The only way to wake up each waiter is to trigger its event.
+ 3. Whether one can be woken up depends on whether the other can.
+
+For example:
+
+ acquire A
+ acquire B /* A dependency 'A -> B' exists */
+ release B
+ release A
+
+ where A and B are different lock classes.
+
+A depedency 'A -> B' exists since:
+
+ 1. A waiter for A and a waiter for B might exist when acquiring B.
+ 2. Only way to wake up each is to release what it waits for.
+ 3. Whether the waiter for A can be woken up depends on whether the
+ other can. IOW, TASK X cannot release A if it fails to acquire B.
+
+For another example:
+
+ TASK X TASK Y
+ ------ ------
+ acquire AX
+ acquire B /* A dependency 'AX -> B' exists */
+ release B
+ release AX held by Y
+
+ where AX and B are different lock classes, and a suffix 'X' is added
+ on crosslocks.
+
+Even in this case involving crosslocks, the same rule can be applied. A
+depedency 'AX -> B' exists since:
+
+ 1. A waiter for AX and a waiter for B might exist when acquiring B.
+ 2. Only way to wake up each is to release what it waits for.
+ 3. Whether the waiter for AX can be woken up depends on whether the
+ other can. IOW, TASK X cannot release AX if it fails to acquire B.
+
+Let's take a look at more complicated example:
+
+ TASK X TASK Y
+ ------ ------
+ acquire B
+ release B
+ fork Y
+ acquire AX
+ acquire C /* A dependency 'AX -> C' exists */
+ release C
+ release AX held by Y
+
+ where AX, B and C are different lock classes, and a suffix 'X' is
+ added on crosslocks.
+
+Does a dependency 'AX -> B' exist? Nope.
+
+Two waiters are essential to create a dependency. However, waiters for
+AX and B to create 'AX -> B' cannot exist at the same time in this
+example. Thus the dependency 'AX -> B' cannot be created.
+
+It would be ideal if the full set of true ones can be considered. But
+we can ensure nothing but what actually happened. Relying on what
+actually happens at runtime, we can anyway add only true ones, though
+they might be a subset of true ones. It's similar to how lockdep works
+for typical locks. There might be more true dependencies than what
+lockdep has detected in runtime. Lockdep has no choice but to rely on
+what actually happens. Crossrelease also relies on it.
+
+CONCLUSION
+
+Relying on what actually happens, lockdep can avoid adding false
+dependencies.
diff --git a/Documentation/locking/rt-mutex-design.txt b/Documentation/locking/rt-mutex-design.txt
index 8666070d3189..6c6e8c2410de 100644
--- a/Documentation/locking/rt-mutex-design.txt
+++ b/Documentation/locking/rt-mutex-design.txt
@@ -97,9 +97,9 @@ waiter - A waiter is a struct that is stored on the stack of a blocked
a process being blocked on the mutex, it is fine to allocate
the waiter on the process's stack (local variable). This
structure holds a pointer to the task, as well as the mutex that
- the task is blocked on. It also has the plist node structures to
- place the task in the waiter_list of a mutex as well as the
- pi_list of a mutex owner task (described below).
+ the task is blocked on. It also has rbtree node structures to
+ place the task in the waiters rbtree of a mutex as well as the
+ pi_waiters rbtree of a mutex owner task (described below).
waiter is sometimes used in reference to the task that is waiting
on a mutex. This is the same as waiter->task.
@@ -179,53 +179,34 @@ again.
|
F->L5-+
+If process G has the highest priority in the chain, then all the tasks up
+the chain (A and B in this example), must have their priorities increased
+to that of G.
-Plist
------
-
-Before I go further and talk about how the PI chain is stored through lists
-on both mutexes and processes, I'll explain the plist. This is similar to
-the struct list_head functionality that is already in the kernel.
-The implementation of plist is out of scope for this document, but it is
-very important to understand what it does.
-
-There are a few differences between plist and list, the most important one
-being that plist is a priority sorted linked list. This means that the
-priorities of the plist are sorted, such that it takes O(1) to retrieve the
-highest priority item in the list. Obviously this is useful to store processes
-based on their priorities.
-
-Another difference, which is important for implementation, is that, unlike
-list, the head of the list is a different element than the nodes of a list.
-So the head of the list is declared as struct plist_head and nodes that will
-be added to the list are declared as struct plist_node.
-
-
-Mutex Waiter List
+Mutex Waiters Tree
-----------------
-Every mutex keeps track of all the waiters that are blocked on itself. The mutex
-has a plist to store these waiters by priority. This list is protected by
-a spin lock that is located in the struct of the mutex. This lock is called
-wait_lock. Since the modification of the waiter list is never done in
-interrupt context, the wait_lock can be taken without disabling interrupts.
+Every mutex keeps track of all the waiters that are blocked on itself. The
+mutex has a rbtree to store these waiters by priority. This tree is protected
+by a spin lock that is located in the struct of the mutex. This lock is called
+wait_lock.
-Task PI List
+Task PI Tree
------------
-To keep track of the PI chains, each process has its own PI list. This is
-a list of all top waiters of the mutexes that are owned by the process.
-Note that this list only holds the top waiters and not all waiters that are
+To keep track of the PI chains, each process has its own PI rbtree. This is
+a tree of all top waiters of the mutexes that are owned by the process.
+Note that this tree only holds the top waiters and not all waiters that are
blocked on mutexes owned by the process.
-The top of the task's PI list is always the highest priority task that
+The top of the task's PI tree is always the highest priority task that
is waiting on a mutex that is owned by the task. So if the task has
inherited a priority, it will always be the priority of the task that is
-at the top of this list.
+at the top of this tree.
-This list is stored in the task structure of a process as a plist called
-pi_list. This list is protected by a spin lock also in the task structure,
+This tree is stored in the task structure of a process as a rbtree called
+pi_waiters. It is protected by a spin lock also in the task structure,
called pi_lock. This lock may also be taken in interrupt context, so when
locking the pi_lock, interrupts must be disabled.
@@ -312,15 +293,12 @@ Mutex owner and flags
The mutex structure contains a pointer to the owner of the mutex. If the
mutex is not owned, this owner is set to NULL. Since all architectures
-have the task structure on at least a four byte alignment (and if this is
-not true, the rtmutex.c code will be broken!), this allows for the two
-least significant bits to be used as flags. This part is also described
-in Documentation/rt-mutex.txt, but will also be briefly described here.
-
-Bit 0 is used as the "Pending Owner" flag. This is described later.
-Bit 1 is used as the "Has Waiters" flags. This is also described later
- in more detail, but is set whenever there are waiters on a mutex.
+have the task structure on at least a two byte alignment (and if this is
+not true, the rtmutex.c code will be broken!), this allows for the least
+significant bit to be used as a flag. Bit 0 is used as the "Has Waiters"
+flag. It's set whenever there are waiters on a mutex.
+See Documentation/locking/rt-mutex.txt for further details.
cmpxchg Tricks
--------------
@@ -359,40 +337,31 @@ Priority adjustments
--------------------
The implementation of the PI code in rtmutex.c has several places that a
-process must adjust its priority. With the help of the pi_list of a
+process must adjust its priority. With the help of the pi_waiters of a
process this is rather easy to know what needs to be adjusted.
-The functions implementing the task adjustments are rt_mutex_adjust_prio,
-__rt_mutex_adjust_prio (same as the former, but expects the task pi_lock
-to already be taken), rt_mutex_getprio, and rt_mutex_setprio.
+The functions implementing the task adjustments are rt_mutex_adjust_prio
+and rt_mutex_setprio. rt_mutex_setprio is only used in rt_mutex_adjust_prio.
-rt_mutex_getprio and rt_mutex_setprio are only used in __rt_mutex_adjust_prio.
+rt_mutex_adjust_prio examines the priority of the task, and the highest
+priority process that is waiting any of mutexes owned by the task. Since
+the pi_waiters of a task holds an order by priority of all the top waiters
+of all the mutexes that the task owns, we simply need to compare the top
+pi waiter to its own normal/deadline priority and take the higher one.
+Then rt_mutex_setprio is called to adjust the priority of the task to the
+new priority. Note that rt_mutex_setprio is defined in kernel/sched/core.c
+to implement the actual change in priority.
-rt_mutex_getprio returns the priority that the task should have. Either the
-task's own normal priority, or if a process of a higher priority is waiting on
-a mutex owned by the task, then that higher priority should be returned.
-Since the pi_list of a task holds an order by priority list of all the top
-waiters of all the mutexes that the task owns, rt_mutex_getprio simply needs
-to compare the top pi waiter to its own normal priority, and return the higher
-priority back.
+(Note: For the "prio" field in task_struct, the lower the number, the
+ higher the priority. A "prio" of 5 is of higher priority than a
+ "prio" of 10.)
-(Note: if looking at the code, you will notice that the lower number of
- prio is returned. This is because the prio field in the task structure
- is an inverse order of the actual priority. So a "prio" of 5 is
- of higher priority than a "prio" of 10.)
-
-__rt_mutex_adjust_prio examines the result of rt_mutex_getprio, and if the
-result does not equal the task's current priority, then rt_mutex_setprio
-is called to adjust the priority of the task to the new priority.
-Note that rt_mutex_setprio is defined in kernel/sched/core.c to implement the
-actual change in priority.
-
-It is interesting to note that __rt_mutex_adjust_prio can either increase
+It is interesting to note that rt_mutex_adjust_prio can either increase
or decrease the priority of the task. In the case that a higher priority
-process has just blocked on a mutex owned by the task, __rt_mutex_adjust_prio
+process has just blocked on a mutex owned by the task, rt_mutex_adjust_prio
would increase/boost the task's priority. But if a higher priority task
were for some reason to leave the mutex (timeout or signal), this same function
-would decrease/unboost the priority of the task. That is because the pi_list
+would decrease/unboost the priority of the task. That is because the pi_waiters
always contains the highest priority task that is waiting on a mutex owned
by the task, so we only need to compare the priority of that top pi waiter
to the normal priority of the given task.
@@ -412,9 +381,10 @@ priorities.
rt_mutex_adjust_prio_chain is called with a task to be checked for PI
(de)boosting (the owner of a mutex that a process is blocking on), a flag to
-check for deadlocking, the mutex that the task owns, and a pointer to a waiter
+check for deadlocking, the mutex that the task owns, a pointer to a waiter
that is the process's waiter struct that is blocked on the mutex (although this
-parameter may be NULL for deboosting).
+parameter may be NULL for deboosting), a pointer to the mutex on which the task
+is blocked, and a top_task as the top waiter of the mutex.
For this explanation, I will not mention deadlock detection. This explanation
will try to stay at a high level.
@@ -424,133 +394,14 @@ that the state of the owner and lock can change when entered into this function.
Before this function is called, the task has already had rt_mutex_adjust_prio
performed on it. This means that the task is set to the priority that it
-should be at, but the plist nodes of the task's waiter have not been updated
-with the new priorities, and that this task may not be in the proper locations
-in the pi_lists and wait_lists that the task is blocked on. This function
+should be at, but the rbtree nodes of the task's waiter have not been updated
+with the new priorities, and this task may not be in the proper locations
+in the pi_waiters and waiters trees that the task is blocked on. This function
solves all that.
-A loop is entered, where task is the owner to be checked for PI changes that
-was passed by parameter (for the first iteration). The pi_lock of this task is
-taken to prevent any more changes to the pi_list of the task. This also
-prevents new tasks from completing the blocking on a mutex that is owned by this
-task.
-
-If the task is not blocked on a mutex then the loop is exited. We are at
-the top of the PI chain.
-
-A check is now done to see if the original waiter (the process that is blocked
-on the current mutex) is the top pi waiter of the task. That is, is this
-waiter on the top of the task's pi_list. If it is not, it either means that
-there is another process higher in priority that is blocked on one of the
-mutexes that the task owns, or that the waiter has just woken up via a signal
-or timeout and has left the PI chain. In either case, the loop is exited, since
-we don't need to do any more changes to the priority of the current task, or any
-task that owns a mutex that this current task is waiting on. A priority chain
-walk is only needed when a new top pi waiter is made to a task.
-
-The next check sees if the task's waiter plist node has the priority equal to
-the priority the task is set at. If they are equal, then we are done with
-the loop. Remember that the function started with the priority of the
-task adjusted, but the plist nodes that hold the task in other processes
-pi_lists have not been adjusted.
-
-Next, we look at the mutex that the task is blocked on. The mutex's wait_lock
-is taken. This is done by a spin_trylock, because the locking order of the
-pi_lock and wait_lock goes in the opposite direction. If we fail to grab the
-lock, the pi_lock is released, and we restart the loop.
-
-Now that we have both the pi_lock of the task as well as the wait_lock of
-the mutex the task is blocked on, we update the task's waiter's plist node
-that is located on the mutex's wait_list.
-
-Now we release the pi_lock of the task.
-
-Next the owner of the mutex has its pi_lock taken, so we can update the
-task's entry in the owner's pi_list. If the task is the highest priority
-process on the mutex's wait_list, then we remove the previous top waiter
-from the owner's pi_list, and replace it with the task.
-
-Note: It is possible that the task was the current top waiter on the mutex,
- in which case the task is not yet on the pi_list of the waiter. This
- is OK, since plist_del does nothing if the plist node is not on any
- list.
-
-If the task was not the top waiter of the mutex, but it was before we
-did the priority updates, that means we are deboosting/lowering the
-task. In this case, the task is removed from the pi_list of the owner,
-and the new top waiter is added.
-
-Lastly, we unlock both the pi_lock of the task, as well as the mutex's
-wait_lock, and continue the loop again. On the next iteration of the
-loop, the previous owner of the mutex will be the task that will be
-processed.
-
-Note: One might think that the owner of this mutex might have changed
- since we just grab the mutex's wait_lock. And one could be right.
- The important thing to remember is that the owner could not have
- become the task that is being processed in the PI chain, since
- we have taken that task's pi_lock at the beginning of the loop.
- So as long as there is an owner of this mutex that is not the same
- process as the tasked being worked on, we are OK.
-
- Looking closely at the code, one might be confused. The check for the
- end of the PI chain is when the task isn't blocked on anything or the
- task's waiter structure "task" element is NULL. This check is
- protected only by the task's pi_lock. But the code to unlock the mutex
- sets the task's waiter structure "task" element to NULL with only
- the protection of the mutex's wait_lock, which was not taken yet.
- Isn't this a race condition if the task becomes the new owner?
-
- The answer is No! The trick is the spin_trylock of the mutex's
- wait_lock. If we fail that lock, we release the pi_lock of the
- task and continue the loop, doing the end of PI chain check again.
-
- In the code to release the lock, the wait_lock of the mutex is held
- the entire time, and it is not let go when we grab the pi_lock of the
- new owner of the mutex. So if the switch of a new owner were to happen
- after the check for end of the PI chain and the grabbing of the
- wait_lock, the unlocking code would spin on the new owner's pi_lock
- but never give up the wait_lock. So the PI chain loop is guaranteed to
- fail the spin_trylock on the wait_lock, release the pi_lock, and
- try again.
-
- If you don't quite understand the above, that's OK. You don't have to,
- unless you really want to make a proof out of it ;)
-
-
-Pending Owners and Lock stealing
---------------------------------
-
-One of the flags in the owner field of the mutex structure is "Pending Owner".
-What this means is that an owner was chosen by the process releasing the
-mutex, but that owner has yet to wake up and actually take the mutex.
-
-Why is this important? Why can't we just give the mutex to another process
-and be done with it?
-
-The PI code is to help with real-time processes, and to let the highest
-priority process run as long as possible with little latencies and delays.
-If a high priority process owns a mutex that a lower priority process is
-blocked on, when the mutex is released it would be given to the lower priority
-process. What if the higher priority process wants to take that mutex again.
-The high priority process would fail to take that mutex that it just gave up
-and it would need to boost the lower priority process to run with full
-latency of that critical section (since the low priority process just entered
-it).
-
-There's no reason a high priority process that gives up a mutex should be
-penalized if it tries to take that mutex again. If the new owner of the
-mutex has not woken up yet, there's no reason that the higher priority process
-could not take that mutex away.
-
-To solve this, we introduced Pending Ownership and Lock Stealing. When a
-new process is given a mutex that it was blocked on, it is only given
-pending ownership. This means that it's the new owner, unless a higher
-priority process comes in and tries to grab that mutex. If a higher priority
-process does come along and wants that mutex, we let the higher priority
-process "steal" the mutex from the pending owner (only if it is still pending)
-and continue with the mutex.
-
+The main operation of this function is summarized by Thomas Gleixner in
+rtmutex.c. See the 'Chain walk basics and protection scope' comment for further
+details.
Taking of a mutex (The walk through)
------------------------------------
@@ -563,14 +414,14 @@ done when we have CMPXCHG enabled (otherwise the fast taking automatically
fails). Only when the owner field of the mutex is NULL can the lock be
taken with the CMPXCHG and nothing else needs to be done.
-If there is contention on the lock, whether it is owned or pending owner
-we go about the slow path (rt_mutex_slowlock).
+If there is contention on the lock, we go about the slow path
+(rt_mutex_slowlock).
The slow path function is where the task's waiter structure is created on
the stack. This is because the waiter structure is only needed for the
scope of this function. The waiter structure holds the nodes to store
-the task on the wait_list of the mutex, and if need be, the pi_list of
-the owner.
+the task on the waiters tree of the mutex, and if need be, the pi_waiters
+tree of the owner.
The wait_lock of the mutex is taken since the slow path of unlocking the
mutex also takes this lock.
@@ -581,102 +432,45 @@ contention).
try_to_take_rt_mutex is used every time the task tries to grab a mutex in the
slow path. The first thing that is done here is an atomic setting of
-the "Has Waiters" flag of the mutex's owner field. Yes, this could really
-be false, because if the mutex has no owner, there are no waiters and
-the current task also won't have any waiters. But we don't have the lock
-yet, so we assume we are going to be a waiter. The reason for this is to
-play nice for those architectures that do have CMPXCHG. By setting this flag
-now, the owner of the mutex can't release the mutex without going into the
-slow unlock path, and it would then need to grab the wait_lock, which this
-code currently holds. So setting the "Has Waiters" flag forces the owner
-to synchronize with this code.
-
-Now that we know that we can't have any races with the owner releasing the
-mutex, we check to see if we can take the ownership. This is done if the
-mutex doesn't have a owner, or if we can steal the mutex from a pending
-owner. Let's look at the situations we have here.
-
- 1) Has owner that is pending
- ----------------------------
-
- The mutex has a owner, but it hasn't woken up and the mutex flag
- "Pending Owner" is set. The first check is to see if the owner isn't the
- current task. This is because this function is also used for the pending
- owner to grab the mutex. When a pending owner wakes up, it checks to see
- if it can take the mutex, and this is done if the owner is already set to
- itself. If so, we succeed and leave the function, clearing the "Pending
- Owner" bit.
-
- If the pending owner is not current, we check to see if the current priority is
- higher than the pending owner. If not, we fail the function and return.
-
- There's also something special about a pending owner. That is a pending owner
- is never blocked on a mutex. So there is no PI chain to worry about. It also
- means that if the mutex doesn't have any waiters, there's no accounting needed
- to update the pending owner's pi_list, since we only worry about processes
- blocked on the current mutex.
-
- If there are waiters on this mutex, and we just stole the ownership, we need
- to take the top waiter, remove it from the pi_list of the pending owner, and
- add it to the current pi_list. Note that at this moment, the pending owner
- is no longer on the list of waiters. This is fine, since the pending owner
- would add itself back when it realizes that it had the ownership stolen
- from itself. When the pending owner tries to grab the mutex, it will fail
- in try_to_take_rt_mutex if the owner field points to another process.
-
- 2) No owner
- -----------
-
- If there is no owner (or we successfully stole the lock), we set the owner
- of the mutex to current, and set the flag of "Has Waiters" if the current
- mutex actually has waiters, or we clear the flag if it doesn't. See, it was
- OK that we set that flag early, since now it is cleared.
-
- 3) Failed to grab ownership
- ---------------------------
-
- The most interesting case is when we fail to take ownership. This means that
- there exists an owner, or there's a pending owner with equal or higher
- priority than the current task.
-
-We'll continue on the failed case.
-
-If the mutex has a timeout, we set up a timer to go off to break us out
-of this mutex if we failed to get it after a specified amount of time.
-
-Now we enter a loop that will continue to try to take ownership of the mutex, or
-fail from a timeout or signal.
-
-Once again we try to take the mutex. This will usually fail the first time
-in the loop, since it had just failed to get the mutex. But the second time
-in the loop, this would likely succeed, since the task would likely be
-the pending owner.
-
-If the mutex is TASK_INTERRUPTIBLE a check for signals and timeout is done
-here.
-
-The waiter structure has a "task" field that points to the task that is blocked
-on the mutex. This field can be NULL the first time it goes through the loop
-or if the task is a pending owner and had its mutex stolen. If the "task"
-field is NULL then we need to set up the accounting for it.
+the "Has Waiters" flag of the mutex's owner field. By setting this flag
+now, the current owner of the mutex being contended for can't release the mutex
+without going into the slow unlock path, and it would then need to grab the
+wait_lock, which this code currently holds. So setting the "Has Waiters" flag
+forces the current owner to synchronize with this code.
+
+The lock is taken if the following are true:
+ 1) The lock has no owner
+ 2) The current task is the highest priority against all other
+ waiters of the lock
+
+If the task succeeds to acquire the lock, then the task is set as the
+owner of the lock, and if the lock still has waiters, the top_waiter
+(highest priority task waiting on the lock) is added to this task's
+pi_waiters tree.
+
+If the lock is not taken by try_to_take_rt_mutex(), then the
+task_blocks_on_rt_mutex() function is called. This will add the task to
+the lock's waiter tree and propagate the pi chain of the lock as well
+as the lock's owner's pi_waiters tree. This is described in the next
+section.
Task blocks on mutex
--------------------
The accounting of a mutex and process is done with the waiter structure of
the process. The "task" field is set to the process, and the "lock" field
-to the mutex. The plist nodes are initialized to the processes current
-priority.
+to the mutex. The rbtree node of waiter are initialized to the processes
+current priority.
Since the wait_lock was taken at the entry of the slow lock, we can safely
-add the waiter to the wait_list. If the current process is the highest
-priority process currently waiting on this mutex, then we remove the
-previous top waiter process (if it exists) from the pi_list of the owner,
-and add the current process to that list. Since the pi_list of the owner
+add the waiter to the task waiter tree. If the current process is the
+highest priority process currently waiting on this mutex, then we remove the
+previous top waiter process (if it exists) from the pi_waiters of the owner,
+and add the current process to that tree. Since the pi_waiter of the owner
has changed, we call rt_mutex_adjust_prio on the owner to see if the owner
should adjust its priority accordingly.
-If the owner is also blocked on a lock, and had its pi_list changed
+If the owner is also blocked on a lock, and had its pi_waiters changed
(or deadlock checking is on), we unlock the wait_lock of the mutex and go ahead
and run rt_mutex_adjust_prio_chain on the owner, as described earlier.
@@ -686,30 +480,23 @@ mutex (waiter "task" field is not NULL), then we go to sleep (call schedule).
Waking up in the loop
---------------------
-The schedule can then wake up for a few reasons.
- 1) we were given pending ownership of the mutex.
- 2) we received a signal and was TASK_INTERRUPTIBLE
- 3) we had a timeout and was TASK_INTERRUPTIBLE
+The task can then wake up for a couple of reasons:
+ 1) The previous lock owner released the lock, and the task now is top_waiter
+ 2) we received a signal or timeout
-In any of these cases, we continue the loop and once again try to grab the
-ownership of the mutex. If we succeed, we exit the loop, otherwise we continue
-and on signal and timeout, will exit the loop, or if we had the mutex stolen
-we just simply add ourselves back on the lists and go back to sleep.
+In both cases, the task will try again to acquire the lock. If it
+does, then it will take itself off the waiters tree and set itself back
+to the TASK_RUNNING state.
-Note: For various reasons, because of timeout and signals, the steal mutex
- algorithm needs to be careful. This is because the current process is
- still on the wait_list. And because of dynamic changing of priorities,
- especially on SCHED_OTHER tasks, the current process can be the
- highest priority task on the wait_list.
-
-Failed to get mutex on Timeout or Signal
-----------------------------------------
+In first case, if the lock was acquired by another task before this task
+could get the lock, then it will go back to sleep and wait to be woken again.
-If a timeout or signal occurred, the waiter's "task" field would not be
-NULL and the task needs to be taken off the wait_list of the mutex and perhaps
-pi_list of the owner. If this process was a high priority process, then
-the rt_mutex_adjust_prio_chain needs to be executed again on the owner,
-but this time it will be lowering the priorities.
+The second case is only applicable for tasks that are grabbing a mutex
+that can wake up before getting the lock, either due to a signal or
+a timeout (i.e. rt_mutex_timed_futex_lock()). When woken, it will try to
+take the lock again, if it succeeds, then the task will return with the
+lock held, otherwise it will return with -EINTR if the task was woken
+by a signal, or -ETIMEDOUT if it timed out.
Unlocking the Mutex
@@ -739,25 +526,12 @@ owner still needs to make this check. If there are no waiters then the mutex
owner field is set to NULL, the wait_lock is released and nothing more is
needed.
-If there are waiters, then we need to wake one up and give that waiter
-pending ownership.
+If there are waiters, then we need to wake one up.
On the wake up code, the pi_lock of the current owner is taken. The top
-waiter of the lock is found and removed from the wait_list of the mutex
-as well as the pi_list of the current owner. The task field of the new
-pending owner's waiter structure is set to NULL, and the owner field of the
-mutex is set to the new owner with the "Pending Owner" bit set, as well
-as the "Has Waiters" bit if there still are other processes blocked on the
-mutex.
-
-The pi_lock of the previous owner is released, and the new pending owner's
-pi_lock is taken. Remember that this is the trick to prevent the race
-condition in rt_mutex_adjust_prio_chain from adding itself as a waiter
-on the mutex.
-
-We now clear the "pi_blocked_on" field of the new pending owner, and if
-the mutex still has waiters pending, we add the new top waiter to the pi_list
-of the pending owner.
+waiter of the lock is found and removed from the waiters tree of the mutex
+as well as the pi_waiters tree of the current owner. The "Has Waiters" bit is
+marked to prevent lower priority tasks from stealing the lock.
Finally we unlock the pi_lock of the pending owner and wake it up.
@@ -772,10 +546,14 @@ Credits
-------
Author: Steven Rostedt <rostedt@goodmis.org>
+Updated: Alex Shi <alex.shi@linaro.org> - 7/6/2017
-Reviewers: Ingo Molnar, Thomas Gleixner, Thomas Duetsch, and Randy Dunlap
+Original Reviewers: Ingo Molnar, Thomas Gleixner, Thomas Duetsch, and
+ Randy Dunlap
+Update (7/6/2017) Reviewers: Steven Rostedt and Sebastian Siewior
Updates
-------
This document was originally written for 2.6.17-rc3-mm1
+was updated on 4.12
diff --git a/Documentation/locking/rt-mutex.txt b/Documentation/locking/rt-mutex.txt
index 243393d882ee..35793e003041 100644
--- a/Documentation/locking/rt-mutex.txt
+++ b/Documentation/locking/rt-mutex.txt
@@ -28,14 +28,13 @@ magic bullet for poorly designed applications, but it allows
well-designed applications to use userspace locks in critical parts of
an high priority thread, without losing determinism.
-The enqueueing of the waiters into the rtmutex waiter list is done in
+The enqueueing of the waiters into the rtmutex waiter tree is done in
priority order. For same priorities FIFO order is chosen. For each
rtmutex, only the top priority waiter is enqueued into the owner's
-priority waiters list. This list too queues in priority order. Whenever
+priority waiters tree. This tree too queues in priority order. Whenever
the top priority waiter of a task changes (for example it timed out or
-got a signal), the priority of the owner task is readjusted. [The
-priority enqueueing is handled by "plists", see include/linux/plist.h
-for more details.]
+got a signal), the priority of the owner task is readjusted. The
+priority enqueueing is handled by "pi_waiters".
RT-mutexes are optimized for fastpath operations and have no internal
locking overhead when locking an uncontended mutex or unlocking a mutex
@@ -46,34 +45,29 @@ is used]
The state of the rt-mutex is tracked via the owner field of the rt-mutex
structure:
-rt_mutex->owner holds the task_struct pointer of the owner. Bit 0 and 1
-are used to keep track of the "owner is pending" and "rtmutex has
-waiters" state.
+lock->owner holds the task_struct pointer of the owner. Bit 0 is used to
+keep track of the "lock has waiters" state.
- owner bit1 bit0
- NULL 0 0 mutex is free (fast acquire possible)
- NULL 0 1 invalid state
- NULL 1 0 Transitional state*
- NULL 1 1 invalid state
- taskpointer 0 0 mutex is held (fast release possible)
- taskpointer 0 1 task is pending owner
- taskpointer 1 0 mutex is held and has waiters
- taskpointer 1 1 task is pending owner and mutex has waiters
+ owner bit0
+ NULL 0 lock is free (fast acquire possible)
+ NULL 1 lock is free and has waiters and the top waiter
+ is going to take the lock*
+ taskpointer 0 lock is held (fast release possible)
+ taskpointer 1 lock is held and has waiters**
-Pending-ownership handling is a performance optimization:
-pending-ownership is assigned to the first (highest priority) waiter of
-the mutex, when the mutex is released. The thread is woken up and once
-it starts executing it can acquire the mutex. Until the mutex is taken
-by it (bit 0 is cleared) a competing higher priority thread can "steal"
-the mutex which puts the woken up thread back on the waiters list.
+The fast atomic compare exchange based acquire and release is only
+possible when bit 0 of lock->owner is 0.
-The pending-ownership optimization is especially important for the
-uninterrupted workflow of high-prio tasks which repeatedly
-takes/releases locks that have lower-prio waiters. Without this
-optimization the higher-prio thread would ping-pong to the lower-prio
-task [because at unlock time we always assign a new owner].
+(*) It also can be a transitional state when grabbing the lock
+with ->wait_lock is held. To prevent any fast path cmpxchg to the lock,
+we need to set the bit0 before looking at the lock, and the owner may be
+NULL in this small time, hence this can be a transitional state.
-(*) The "mutex has waiters" bit gets set to take the lock. If the lock
-doesn't already have an owner, this bit is quickly cleared if there are
-no waiters. So this is a transitional state to synchronize with looking
-at the owner field of the mutex and the mutex owner releasing the lock.
+(**) There is a small time when bit 0 is set but there are no
+waiters. This can happen when grabbing the lock in the slow path.
+To prevent a cmpxchg of the owner releasing the lock, we need to
+set this bit before looking at the lock.
+
+BTW, there is still technically a "Pending Owner", it's just not called
+that anymore. The pending owner happens to be the top_waiter of a lock
+that has no owner and has been woken up to grab the lock.
diff --git a/Documentation/lockup-watchdogs.txt b/Documentation/lockup-watchdogs.txt
index c8b8378513d6..290840c160af 100644
--- a/Documentation/lockup-watchdogs.txt
+++ b/Documentation/lockup-watchdogs.txt
@@ -30,7 +30,8 @@ timeout is set through the confusingly named "kernel.panic" sysctl),
to cause the system to reboot automatically after a specified amount
of time.
-=== Implementation ===
+Implementation
+==============
The soft and hard lockup detectors are built on top of the hrtimer and
perf subsystems, respectively. A direct consequence of this is that,
diff --git a/Documentation/lsm.txt b/Documentation/lsm.txt
new file mode 100644
index 000000000000..ad4dfd020e0d
--- /dev/null
+++ b/Documentation/lsm.txt
@@ -0,0 +1,201 @@
+========================================================
+Linux Security Modules: General Security Hooks for Linux
+========================================================
+
+:Author: Stephen Smalley
+:Author: Timothy Fraser
+:Author: Chris Vance
+
+.. note::
+
+ The APIs described in this book are outdated.
+
+Introduction
+============
+
+In March 2001, the National Security Agency (NSA) gave a presentation
+about Security-Enhanced Linux (SELinux) at the 2.5 Linux Kernel Summit.
+SELinux is an implementation of flexible and fine-grained
+nondiscretionary access controls in the Linux kernel, originally
+implemented as its own particular kernel patch. Several other security
+projects (e.g. RSBAC, Medusa) have also developed flexible access
+control architectures for the Linux kernel, and various projects have
+developed particular access control models for Linux (e.g. LIDS, DTE,
+SubDomain). Each project has developed and maintained its own kernel
+patch to support its security needs.
+
+In response to the NSA presentation, Linus Torvalds made a set of
+remarks that described a security framework he would be willing to
+consider for inclusion in the mainstream Linux kernel. He described a
+general framework that would provide a set of security hooks to control
+operations on kernel objects and a set of opaque security fields in
+kernel data structures for maintaining security attributes. This
+framework could then be used by loadable kernel modules to implement any
+desired model of security. Linus also suggested the possibility of
+migrating the Linux capabilities code into such a module.
+
+The Linux Security Modules (LSM) project was started by WireX to develop
+such a framework. LSM is a joint development effort by several security
+projects, including Immunix, SELinux, SGI and Janus, and several
+individuals, including Greg Kroah-Hartman and James Morris, to develop a
+Linux kernel patch that implements this framework. The patch is
+currently tracking the 2.4 series and is targeted for integration into
+the 2.5 development series. This technical report provides an overview
+of the framework and the example capabilities security module provided
+by the LSM kernel patch.
+
+LSM Framework
+=============
+
+The LSM kernel patch provides a general kernel framework to support
+security modules. In particular, the LSM framework is primarily focused
+on supporting access control modules, although future development is
+likely to address other security needs such as auditing. By itself, the
+framework does not provide any additional security; it merely provides
+the infrastructure to support security modules. The LSM kernel patch
+also moves most of the capabilities logic into an optional security
+module, with the system defaulting to the traditional superuser logic.
+This capabilities module is discussed further in
+`LSM Capabilities Module <#cap>`__.
+
+The LSM kernel patch adds security fields to kernel data structures and
+inserts calls to hook functions at critical points in the kernel code to
+manage the security fields and to perform access control. It also adds
+functions for registering and unregistering security modules, and adds a
+general :c:func:`security()` system call to support new system calls
+for security-aware applications.
+
+The LSM security fields are simply ``void*`` pointers. For process and
+program execution security information, security fields were added to
+:c:type:`struct task_struct <task_struct>` and
+:c:type:`struct linux_binprm <linux_binprm>`. For filesystem
+security information, a security field was added to :c:type:`struct
+super_block <super_block>`. For pipe, file, and socket security
+information, security fields were added to :c:type:`struct inode
+<inode>` and :c:type:`struct file <file>`. For packet and
+network device security information, security fields were added to
+:c:type:`struct sk_buff <sk_buff>` and :c:type:`struct
+net_device <net_device>`. For System V IPC security information,
+security fields were added to :c:type:`struct kern_ipc_perm
+<kern_ipc_perm>` and :c:type:`struct msg_msg
+<msg_msg>`; additionally, the definitions for :c:type:`struct
+msg_msg <msg_msg>`, struct msg_queue, and struct shmid_kernel
+were moved to header files (``include/linux/msg.h`` and
+``include/linux/shm.h`` as appropriate) to allow the security modules to
+use these definitions.
+
+Each LSM hook is a function pointer in a global table, security_ops.
+This table is a :c:type:`struct security_operations
+<security_operations>` structure as defined by
+``include/linux/security.h``. Detailed documentation for each hook is
+included in this header file. At present, this structure consists of a
+collection of substructures that group related hooks based on the kernel
+object (e.g. task, inode, file, sk_buff, etc) as well as some top-level
+hook function pointers for system operations. This structure is likely
+to be flattened in the future for performance. The placement of the hook
+calls in the kernel code is described by the "called:" lines in the
+per-hook documentation in the header file. The hook calls can also be
+easily found in the kernel code by looking for the string
+"security_ops->".
+
+Linus mentioned per-process security hooks in his original remarks as a
+possible alternative to global security hooks. However, if LSM were to
+start from the perspective of per-process hooks, then the base framework
+would have to deal with how to handle operations that involve multiple
+processes (e.g. kill), since each process might have its own hook for
+controlling the operation. This would require a general mechanism for
+composing hooks in the base framework. Additionally, LSM would still
+need global hooks for operations that have no process context (e.g.
+network input operations). Consequently, LSM provides global security
+hooks, but a security module is free to implement per-process hooks
+(where that makes sense) by storing a security_ops table in each
+process' security field and then invoking these per-process hooks from
+the global hooks. The problem of composition is thus deferred to the
+module.
+
+The global security_ops table is initialized to a set of hook functions
+provided by a dummy security module that provides traditional superuser
+logic. A :c:func:`register_security()` function (in
+``security/security.c``) is provided to allow a security module to set
+security_ops to refer to its own hook functions, and an
+:c:func:`unregister_security()` function is provided to revert
+security_ops to the dummy module hooks. This mechanism is used to set
+the primary security module, which is responsible for making the final
+decision for each hook.
+
+LSM also provides a simple mechanism for stacking additional security
+modules with the primary security module. It defines
+:c:func:`register_security()` and
+:c:func:`unregister_security()` hooks in the :c:type:`struct
+security_operations <security_operations>` structure and
+provides :c:func:`mod_reg_security()` and
+:c:func:`mod_unreg_security()` functions that invoke these hooks
+after performing some sanity checking. A security module can call these
+functions in order to stack with other modules. However, the actual
+details of how this stacking is handled are deferred to the module,
+which can implement these hooks in any way it wishes (including always
+returning an error if it does not wish to support stacking). In this
+manner, LSM again defers the problem of composition to the module.
+
+Although the LSM hooks are organized into substructures based on kernel
+object, all of the hooks can be viewed as falling into two major
+categories: hooks that are used to manage the security fields and hooks
+that are used to perform access control. Examples of the first category
+of hooks include the :c:func:`alloc_security()` and
+:c:func:`free_security()` hooks defined for each kernel data
+structure that has a security field. These hooks are used to allocate
+and free security structures for kernel objects. The first category of
+hooks also includes hooks that set information in the security field
+after allocation, such as the :c:func:`post_lookup()` hook in
+:c:type:`struct inode_security_ops <inode_security_ops>`.
+This hook is used to set security information for inodes after
+successful lookup operations. An example of the second category of hooks
+is the :c:func:`permission()` hook in :c:type:`struct
+inode_security_ops <inode_security_ops>`. This hook checks
+permission when accessing an inode.
+
+LSM Capabilities Module
+=======================
+
+The LSM kernel patch moves most of the existing POSIX.1e capabilities
+logic into an optional security module stored in the file
+``security/capability.c``. This change allows users who do not want to
+use capabilities to omit this code entirely from their kernel, instead
+using the dummy module for traditional superuser logic or any other
+module that they desire. This change also allows the developers of the
+capabilities logic to maintain and enhance their code more freely,
+without needing to integrate patches back into the base kernel.
+
+In addition to moving the capabilities logic, the LSM kernel patch could
+move the capability-related fields from the kernel data structures into
+the new security fields managed by the security modules. However, at
+present, the LSM kernel patch leaves the capability fields in the kernel
+data structures. In his original remarks, Linus suggested that this
+might be preferable so that other security modules can be easily stacked
+with the capabilities module without needing to chain multiple security
+structures on the security field. It also avoids imposing extra overhead
+on the capabilities module to manage the security fields. However, the
+LSM framework could certainly support such a move if it is determined to
+be desirable, with only a few additional changes described below.
+
+At present, the capabilities logic for computing process capabilities on
+:c:func:`execve()` and :c:func:`set\*uid()`, checking
+capabilities for a particular process, saving and checking capabilities
+for netlink messages, and handling the :c:func:`capget()` and
+:c:func:`capset()` system calls have been moved into the
+capabilities module. There are still a few locations in the base kernel
+where capability-related fields are directly examined or modified, but
+the current version of the LSM patch does allow a security module to
+completely replace the assignment and testing of capabilities. These few
+locations would need to be changed if the capability-related fields were
+moved into the security field. The following is a list of known
+locations that still perform such direct examination or modification of
+capability-related fields:
+
+- ``fs/open.c``::c:func:`sys_access()`
+
+- ``fs/lockd/host.c``::c:func:`nlm_bind_host()`
+
+- ``fs/nfsd/auth.c``::c:func:`nfsd_setuser()`
+
+- ``fs/proc/array.c``::c:func:`task_cap()`
diff --git a/Documentation/lzo.txt b/Documentation/lzo.txt
index 285c54f66779..6fa6a93d0949 100644
--- a/Documentation/lzo.txt
+++ b/Documentation/lzo.txt
@@ -1,8 +1,9 @@
-
+===========================================================
LZO stream format as understood by Linux's LZO decompressor
===========================================================
Introduction
+============
This is not a specification. No specification seems to be publicly available
for the LZO stream format. This document describes what input format the LZO
@@ -14,12 +15,13 @@ Introduction
for future bug reports.
Description
+===========
The stream is composed of a series of instructions, operands, and data. The
instructions consist in a few bits representing an opcode, and bits forming
the operands for the instruction, whose size and position depend on the
opcode and on the number of literals copied by previous instruction. The
- operands are used to indicate :
+ operands are used to indicate:
- a distance when copying data from the dictionary (past output buffer)
- a length (number of bytes to copy from dictionary)
@@ -38,7 +40,7 @@ Description
of bits in the operand. If the number of bits isn't enough to represent the
length, up to 255 may be added in increments by consuming more bytes with a
rate of at most 255 per extra byte (thus the compression ratio cannot exceed
- around 255:1). The variable length encoding using #bits is always the same :
+ around 255:1). The variable length encoding using #bits is always the same::
length = byte & ((1 << #bits) - 1)
if (!length) {
@@ -67,15 +69,19 @@ Description
instruction may encode this distance (0001HLLL), it takes one LE16 operand
for the distance, thus requiring 3 bytes.
- IMPORTANT NOTE : in the code some length checks are missing because certain
- instructions are called under the assumption that a certain number of bytes
- follow because it has already been guaranteed before parsing the instructions.
- They just have to "refill" this credit if they consume extra bytes. This is
- an implementation design choice independent on the algorithm or encoding.
+ .. important::
+
+ In the code some length checks are missing because certain instructions
+ are called under the assumption that a certain number of bytes follow
+ because it has already been guaranteed before parsing the instructions.
+ They just have to "refill" this credit if they consume extra bytes. This
+ is an implementation design choice independent on the algorithm or
+ encoding.
Byte sequences
+==============
- First byte encoding :
+ First byte encoding::
0..17 : follow regular instruction encoding, see below. It is worth
noting that codes 16 and 17 will represent a block copy from
@@ -91,7 +97,7 @@ Byte sequences
state = 4 [ don't copy extra literals ]
skip byte
- Instruction encoding :
+ Instruction encoding::
0 0 0 0 X X X X (0..15)
Depends on the number of literals copied by the last instruction.
@@ -156,6 +162,7 @@ Byte sequences
distance = (H << 3) + D + 1
Authors
+=======
This document was written by Willy Tarreau <w@1wt.eu> on 2014/07/19 during an
analysis of the decompression code available in Linux 3.16-rc5. The code is
diff --git a/Documentation/mailbox.txt b/Documentation/mailbox.txt
index 7ed371c85204..0ed95009cc30 100644
--- a/Documentation/mailbox.txt
+++ b/Documentation/mailbox.txt
@@ -1,7 +1,10 @@
- The Common Mailbox Framework
- Jassi Brar <jaswinder.singh@linaro.org>
+============================
+The Common Mailbox Framework
+============================
- This document aims to help developers write client and controller
+:Author: Jassi Brar <jaswinder.singh@linaro.org>
+
+This document aims to help developers write client and controller
drivers for the API. But before we start, let us note that the
client (especially) and controller drivers are likely going to be
very platform specific because the remote firmware is likely to be
@@ -13,14 +16,17 @@ similar copies of code written for each platform. Having said that,
nothing prevents the remote f/w to also be Linux based and use the
same api there. However none of that helps us locally because we only
ever deal at client's protocol level.
- Some of the choices made during implementation are the result of this
+
+Some of the choices made during implementation are the result of this
peculiarity of this "common" framework.
- Part 1 - Controller Driver (See include/linux/mailbox_controller.h)
+Controller Driver (See include/linux/mailbox_controller.h)
+==========================================================
+
- Allocate mbox_controller and the array of mbox_chan.
+Allocate mbox_controller and the array of mbox_chan.
Populate mbox_chan_ops, except peek_data() all are mandatory.
The controller driver might know a message has been consumed
by the remote by getting an IRQ or polling some hardware flag
@@ -30,91 +36,94 @@ the controller driver should set via 'txdone_irq' or 'txdone_poll'
or neither.
- Part 2 - Client Driver (See include/linux/mailbox_client.h)
+Client Driver (See include/linux/mailbox_client.h)
+==================================================
- The client might want to operate in blocking mode (synchronously
+
+The client might want to operate in blocking mode (synchronously
send a message through before returning) or non-blocking/async mode (submit
a message and a callback function to the API and return immediately).
-
-struct demo_client {
- struct mbox_client cl;
- struct mbox_chan *mbox;
- struct completion c;
- bool async;
- /* ... */
-};
-
-/*
- * This is the handler for data received from remote. The behaviour is purely
- * dependent upon the protocol. This is just an example.
- */
-static void message_from_remote(struct mbox_client *cl, void *mssg)
-{
- struct demo_client *dc = container_of(cl, struct demo_client, cl);
- if (dc->async) {
- if (is_an_ack(mssg)) {
- /* An ACK to our last sample sent */
- return; /* Or do something else here */
- } else { /* A new message from remote */
- queue_req(mssg);
+::
+
+ struct demo_client {
+ struct mbox_client cl;
+ struct mbox_chan *mbox;
+ struct completion c;
+ bool async;
+ /* ... */
+ };
+
+ /*
+ * This is the handler for data received from remote. The behaviour is purely
+ * dependent upon the protocol. This is just an example.
+ */
+ static void message_from_remote(struct mbox_client *cl, void *mssg)
+ {
+ struct demo_client *dc = container_of(cl, struct demo_client, cl);
+ if (dc->async) {
+ if (is_an_ack(mssg)) {
+ /* An ACK to our last sample sent */
+ return; /* Or do something else here */
+ } else { /* A new message from remote */
+ queue_req(mssg);
+ }
+ } else {
+ /* Remote f/w sends only ACK packets on this channel */
+ return;
}
- } else {
- /* Remote f/w sends only ACK packets on this channel */
- return;
}
-}
-
-static void sample_sent(struct mbox_client *cl, void *mssg, int r)
-{
- struct demo_client *dc = container_of(cl, struct demo_client, cl);
- complete(&dc->c);
-}
-
-static void client_demo(struct platform_device *pdev)
-{
- struct demo_client *dc_sync, *dc_async;
- /* The controller already knows async_pkt and sync_pkt */
- struct async_pkt ap;
- struct sync_pkt sp;
-
- dc_sync = kzalloc(sizeof(*dc_sync), GFP_KERNEL);
- dc_async = kzalloc(sizeof(*dc_async), GFP_KERNEL);
-
- /* Populate non-blocking mode client */
- dc_async->cl.dev = &pdev->dev;
- dc_async->cl.rx_callback = message_from_remote;
- dc_async->cl.tx_done = sample_sent;
- dc_async->cl.tx_block = false;
- dc_async->cl.tx_tout = 0; /* doesn't matter here */
- dc_async->cl.knows_txdone = false; /* depending upon protocol */
- dc_async->async = true;
- init_completion(&dc_async->c);
-
- /* Populate blocking mode client */
- dc_sync->cl.dev = &pdev->dev;
- dc_sync->cl.rx_callback = message_from_remote;
- dc_sync->cl.tx_done = NULL; /* operate in blocking mode */
- dc_sync->cl.tx_block = true;
- dc_sync->cl.tx_tout = 500; /* by half a second */
- dc_sync->cl.knows_txdone = false; /* depending upon protocol */
- dc_sync->async = false;
-
- /* ASync mailbox is listed second in 'mboxes' property */
- dc_async->mbox = mbox_request_channel(&dc_async->cl, 1);
- /* Populate data packet */
- /* ap.xxx = 123; etc */
- /* Send async message to remote */
- mbox_send_message(dc_async->mbox, &ap);
-
- /* Sync mailbox is listed first in 'mboxes' property */
- dc_sync->mbox = mbox_request_channel(&dc_sync->cl, 0);
- /* Populate data packet */
- /* sp.abc = 123; etc */
- /* Send message to remote in blocking mode */
- mbox_send_message(dc_sync->mbox, &sp);
- /* At this point 'sp' has been sent */
-
- /* Now wait for async chan to be done */
- wait_for_completion(&dc_async->c);
-}
+
+ static void sample_sent(struct mbox_client *cl, void *mssg, int r)
+ {
+ struct demo_client *dc = container_of(cl, struct demo_client, cl);
+ complete(&dc->c);
+ }
+
+ static void client_demo(struct platform_device *pdev)
+ {
+ struct demo_client *dc_sync, *dc_async;
+ /* The controller already knows async_pkt and sync_pkt */
+ struct async_pkt ap;
+ struct sync_pkt sp;
+
+ dc_sync = kzalloc(sizeof(*dc_sync), GFP_KERNEL);
+ dc_async = kzalloc(sizeof(*dc_async), GFP_KERNEL);
+
+ /* Populate non-blocking mode client */
+ dc_async->cl.dev = &pdev->dev;
+ dc_async->cl.rx_callback = message_from_remote;
+ dc_async->cl.tx_done = sample_sent;
+ dc_async->cl.tx_block = false;
+ dc_async->cl.tx_tout = 0; /* doesn't matter here */
+ dc_async->cl.knows_txdone = false; /* depending upon protocol */
+ dc_async->async = true;
+ init_completion(&dc_async->c);
+
+ /* Populate blocking mode client */
+ dc_sync->cl.dev = &pdev->dev;
+ dc_sync->cl.rx_callback = message_from_remote;
+ dc_sync->cl.tx_done = NULL; /* operate in blocking mode */
+ dc_sync->cl.tx_block = true;
+ dc_sync->cl.tx_tout = 500; /* by half a second */
+ dc_sync->cl.knows_txdone = false; /* depending upon protocol */
+ dc_sync->async = false;
+
+ /* ASync mailbox is listed second in 'mboxes' property */
+ dc_async->mbox = mbox_request_channel(&dc_async->cl, 1);
+ /* Populate data packet */
+ /* ap.xxx = 123; etc */
+ /* Send async message to remote */
+ mbox_send_message(dc_async->mbox, &ap);
+
+ /* Sync mailbox is listed first in 'mboxes' property */
+ dc_sync->mbox = mbox_request_channel(&dc_sync->cl, 0);
+ /* Populate data packet */
+ /* sp.abc = 123; etc */
+ /* Send message to remote in blocking mode */
+ mbox_send_message(dc_sync->mbox, &sp);
+ /* At this point 'sp' has been sent */
+
+ /* Now wait for async chan to be done */
+ wait_for_completion(&dc_async->c);
+ }
diff --git a/Documentation/media/ca.h.rst.exceptions b/Documentation/media/ca.h.rst.exceptions
index d7c9fed8c004..553559cc6ad7 100644
--- a/Documentation/media/ca.h.rst.exceptions
+++ b/Documentation/media/ca.h.rst.exceptions
@@ -16,7 +16,6 @@ replace define CA_NDS :c:type:`ca_descr_info`
replace define CA_DSS :c:type:`ca_descr_info`
# some typedefs should point to struct/enums
-replace typedef ca_pid_t :c:type:`ca_pid`
replace typedef ca_slot_info_t :c:type:`ca_slot_info`
replace typedef ca_descr_info_t :c:type:`ca_descr_info`
replace typedef ca_caps_t :c:type:`ca_caps`
diff --git a/Documentation/media/cec-drivers/index.rst b/Documentation/media/cec-drivers/index.rst
new file mode 100644
index 000000000000..7ef204823422
--- /dev/null
+++ b/Documentation/media/cec-drivers/index.rst
@@ -0,0 +1,34 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+.. include:: <isonum.txt>
+
+.. _cec-drivers:
+
+#################################
+CEC driver-specific documentation
+#################################
+
+**Copyright** |copy| 2017 : LinuxTV Developers
+
+This documentation is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the Free
+Software Foundation version 2 of the License.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+more details.
+
+For more details see the file COPYING in the source distribution of Linux.
+
+.. only:: html
+
+ .. class:: toc-title
+
+ Table of Contents
+
+.. toctree::
+ :maxdepth: 5
+ :numbered:
+
+ pulse8-cec
diff --git a/Documentation/media/cec-drivers/pulse8-cec.rst b/Documentation/media/cec-drivers/pulse8-cec.rst
new file mode 100644
index 000000000000..99551c6a9bc5
--- /dev/null
+++ b/Documentation/media/cec-drivers/pulse8-cec.rst
@@ -0,0 +1,11 @@
+Pulse-Eight CEC Adapter driver
+==============================
+
+The pulse8-cec driver implements the following module option:
+
+``persistent_config``
+---------------------
+
+By default this is off, but when set to 1 the driver will store the current
+settings to the device's internal eeprom and restore it the next time the
+device is connected to the USB port.
diff --git a/Documentation/media/dmx.h.rst.exceptions b/Documentation/media/dmx.h.rst.exceptions
index 2fdb458564ba..629db384104a 100644
--- a/Documentation/media/dmx.h.rst.exceptions
+++ b/Documentation/media/dmx.h.rst.exceptions
@@ -40,27 +40,17 @@ replace enum dmx_input :c:type:`dmx_input`
replace symbol DMX_IN_FRONTEND :c:type:`dmx_input`
replace symbol DMX_IN_DVR :c:type:`dmx_input`
-# dmx_source_t symbols
-replace enum dmx_source :c:type:`dmx_source`
-replace symbol DMX_SOURCE_FRONT0 :c:type:`dmx_source`
-replace symbol DMX_SOURCE_FRONT1 :c:type:`dmx_source`
-replace symbol DMX_SOURCE_FRONT2 :c:type:`dmx_source`
-replace symbol DMX_SOURCE_FRONT3 :c:type:`dmx_source`
-replace symbol DMX_SOURCE_DVR0 :c:type:`dmx_source`
-replace symbol DMX_SOURCE_DVR1 :c:type:`dmx_source`
-replace symbol DMX_SOURCE_DVR2 :c:type:`dmx_source`
-replace symbol DMX_SOURCE_DVR3 :c:type:`dmx_source`
-
-
# Flags for struct dmx_sct_filter_params
replace define DMX_CHECK_CRC :c:type:`dmx_sct_filter_params`
replace define DMX_ONESHOT :c:type:`dmx_sct_filter_params`
replace define DMX_IMMEDIATE_START :c:type:`dmx_sct_filter_params`
-replace define DMX_KERNEL_CLIENT :c:type:`dmx_sct_filter_params`
# some typedefs should point to struct/enums
-replace typedef dmx_caps_t :c:type:`dmx_caps`
replace typedef dmx_filter_t :c:type:`dmx_filter`
replace typedef dmx_pes_type_t :c:type:`dmx_pes_type`
replace typedef dmx_input_t :c:type:`dmx_input`
-replace typedef dmx_source_t :c:type:`dmx_source`
+
+ignore symbol DMX_OUT_DECODER
+ignore symbol DMX_OUT_TAP
+ignore symbol DMX_OUT_TS_TAP
+ignore symbol DMX_OUT_TSDEMUX_TAP
diff --git a/Documentation/media/dvb-drivers/ci.rst b/Documentation/media/dvb-drivers/ci.rst
index 69b07e9d1816..87f3748c49b9 100644
--- a/Documentation/media/dvb-drivers/ci.rst
+++ b/Documentation/media/dvb-drivers/ci.rst
@@ -143,7 +143,6 @@ All these ioctls are also valid for the High level CI interface
#define CA_GET_MSG _IOR('o', 132, ca_msg_t)
#define CA_SEND_MSG _IOW('o', 133, ca_msg_t)
#define CA_SET_DESCR _IOW('o', 134, ca_descr_t)
-#define CA_SET_PID _IOW('o', 135, ca_pid_t)
On querying the device, the device yields information thus:
diff --git a/Documentation/media/dvb-drivers/index.rst b/Documentation/media/dvb-drivers/index.rst
index ea0da6d63299..376141143ae9 100644
--- a/Documentation/media/dvb-drivers/index.rst
+++ b/Documentation/media/dvb-drivers/index.rst
@@ -19,7 +19,9 @@ more details.
For more details see the file COPYING in the source distribution of Linux.
-.. class:: toc-title
+.. only:: html
+
+ .. class:: toc-title
Table of Contents
diff --git a/Documentation/media/frontend.h.rst.exceptions b/Documentation/media/frontend.h.rst.exceptions
index 7656770f1936..f7c4df620a52 100644
--- a/Documentation/media/frontend.h.rst.exceptions
+++ b/Documentation/media/frontend.h.rst.exceptions
@@ -25,19 +25,9 @@ ignore define DTV_MAX_COMMAND
ignore define MAX_DTV_STATS
ignore define DTV_IOCTL_MAX_MSGS
-# Stats enum is documented altogether
-replace enum fecap_scale_params :ref:`frontend-stat-properties`
-replace symbol FE_SCALE_COUNTER frontend-stat-properties
-replace symbol FE_SCALE_DECIBEL frontend-stat-properties
-replace symbol FE_SCALE_NOT_AVAILABLE frontend-stat-properties
-replace symbol FE_SCALE_RELATIVE frontend-stat-properties
-
# the same reference is used for both get and set ioctls
replace ioctl FE_SET_PROPERTY :c:type:`FE_GET_PROPERTY`
-# Ignore struct used only internally at Kernel
-ignore struct dtv_cmds_h
-
# Typedefs that use the enum reference
replace typedef fe_sec_voltage_t :c:type:`fe_sec_voltage`
@@ -45,3 +35,178 @@ replace typedef fe_sec_voltage_t :c:type:`fe_sec_voltage`
replace define FE_TUNE_MODE_ONESHOT :c:func:`FE_SET_FRONTEND_TUNE_MODE`
replace define LNA_AUTO dtv-lna
replace define NO_STREAM_ID_FILTER dtv-stream-id
+
+# Those enums are defined at the frontend.h header, and not externally
+
+ignore symbol FE_IS_STUPID
+ignore symbol FE_CAN_INVERSION_AUTO
+ignore symbol FE_CAN_FEC_1_2
+ignore symbol FE_CAN_FEC_2_3
+ignore symbol FE_CAN_FEC_3_4
+ignore symbol FE_CAN_FEC_4_5
+ignore symbol FE_CAN_FEC_5_6
+ignore symbol FE_CAN_FEC_6_7
+ignore symbol FE_CAN_FEC_7_8
+ignore symbol FE_CAN_FEC_8_9
+ignore symbol FE_CAN_FEC_AUTO
+ignore symbol FE_CAN_QPSK
+ignore symbol FE_CAN_QAM_16
+ignore symbol FE_CAN_QAM_32
+ignore symbol FE_CAN_QAM_64
+ignore symbol FE_CAN_QAM_128
+ignore symbol FE_CAN_QAM_256
+ignore symbol FE_CAN_QAM_AUTO
+ignore symbol FE_CAN_TRANSMISSION_MODE_AUTO
+ignore symbol FE_CAN_BANDWIDTH_AUTO
+ignore symbol FE_CAN_GUARD_INTERVAL_AUTO
+ignore symbol FE_CAN_HIERARCHY_AUTO
+ignore symbol FE_CAN_8VSB
+ignore symbol FE_CAN_16VSB
+ignore symbol FE_HAS_EXTENDED_CAPS
+ignore symbol FE_CAN_MULTISTREAM
+ignore symbol FE_CAN_TURBO_FEC
+ignore symbol FE_CAN_2G_MODULATION
+ignore symbol FE_NEEDS_BENDING
+ignore symbol FE_CAN_RECOVER
+ignore symbol FE_CAN_MUTE_TS
+
+ignore symbol QPSK
+ignore symbol QAM_16
+ignore symbol QAM_32
+ignore symbol QAM_64
+ignore symbol QAM_128
+ignore symbol QAM_256
+ignore symbol QAM_AUTO
+ignore symbol VSB_8
+ignore symbol VSB_16
+ignore symbol PSK_8
+ignore symbol APSK_16
+ignore symbol APSK_32
+ignore symbol DQPSK
+ignore symbol QAM_4_NR
+
+ignore symbol SEC_VOLTAGE_13
+ignore symbol SEC_VOLTAGE_18
+ignore symbol SEC_VOLTAGE_OFF
+
+ignore symbol SEC_TONE_ON
+ignore symbol SEC_TONE_OFF
+
+ignore symbol SEC_MINI_A
+ignore symbol SEC_MINI_B
+
+ignore symbol FE_NONE
+ignore symbol FE_HAS_SIGNAL
+ignore symbol FE_HAS_CARRIER
+ignore symbol FE_HAS_VITERBI
+ignore symbol FE_HAS_SYNC
+ignore symbol FE_HAS_LOCK
+ignore symbol FE_REINIT
+ignore symbol FE_TIMEDOUT
+
+ignore symbol FEC_NONE
+ignore symbol FEC_1_2
+ignore symbol FEC_2_3
+ignore symbol FEC_3_4
+ignore symbol FEC_4_5
+ignore symbol FEC_5_6
+ignore symbol FEC_6_7
+ignore symbol FEC_7_8
+ignore symbol FEC_8_9
+ignore symbol FEC_AUTO
+ignore symbol FEC_3_5
+ignore symbol FEC_9_10
+ignore symbol FEC_2_5
+
+ignore symbol TRANSMISSION_MODE_AUTO
+ignore symbol TRANSMISSION_MODE_1K
+ignore symbol TRANSMISSION_MODE_2K
+ignore symbol TRANSMISSION_MODE_8K
+ignore symbol TRANSMISSION_MODE_4K
+ignore symbol TRANSMISSION_MODE_16K
+ignore symbol TRANSMISSION_MODE_32K
+ignore symbol TRANSMISSION_MODE_C1
+ignore symbol TRANSMISSION_MODE_C3780
+ignore symbol TRANSMISSION_MODE_2K
+ignore symbol TRANSMISSION_MODE_8K
+
+ignore symbol GUARD_INTERVAL_AUTO
+ignore symbol GUARD_INTERVAL_1_128
+ignore symbol GUARD_INTERVAL_1_32
+ignore symbol GUARD_INTERVAL_1_16
+ignore symbol GUARD_INTERVAL_1_8
+ignore symbol GUARD_INTERVAL_1_4
+ignore symbol GUARD_INTERVAL_19_128
+ignore symbol GUARD_INTERVAL_19_256
+ignore symbol GUARD_INTERVAL_PN420
+ignore symbol GUARD_INTERVAL_PN595
+ignore symbol GUARD_INTERVAL_PN945
+
+ignore symbol HIERARCHY_NONE
+ignore symbol HIERARCHY_AUTO
+ignore symbol HIERARCHY_1
+ignore symbol HIERARCHY_2
+ignore symbol HIERARCHY_4
+
+ignore symbol INTERLEAVING_NONE
+ignore symbol INTERLEAVING_AUTO
+ignore symbol INTERLEAVING_240
+ignore symbol INTERLEAVING_720
+
+ignore symbol PILOT_ON
+ignore symbol PILOT_OFF
+ignore symbol PILOT_AUTO
+
+ignore symbol ROLLOFF_35
+ignore symbol ROLLOFF_20
+ignore symbol ROLLOFF_25
+ignore symbol ROLLOFF_AUTO
+
+ignore symbol INVERSION_ON
+ignore symbol INVERSION_OFF
+ignore symbol INVERSION_AUTO
+
+ignore symbol SYS_UNDEFINED
+ignore symbol SYS_DVBC_ANNEX_A
+ignore symbol SYS_DVBC_ANNEX_B
+ignore symbol SYS_DVBC_ANNEX_C
+ignore symbol SYS_ISDBC
+ignore symbol SYS_DVBT
+ignore symbol SYS_DVBT2
+ignore symbol SYS_ISDBT
+ignore symbol SYS_ATSC
+ignore symbol SYS_ATSCMH
+ignore symbol SYS_DTMB
+ignore symbol SYS_DVBS
+ignore symbol SYS_DVBS2
+ignore symbol SYS_TURBO
+ignore symbol SYS_ISDBS
+ignore symbol SYS_DAB
+ignore symbol SYS_DSS
+ignore symbol SYS_CMMB
+ignore symbol SYS_DVBH
+
+ignore symbol ATSCMH_SCCC_BLK_SEP
+ignore symbol ATSCMH_SCCC_BLK_COMB
+ignore symbol ATSCMH_SCCC_BLK_RES
+
+ignore symbol ATSCMH_SCCC_CODE_HLF
+ignore symbol ATSCMH_SCCC_CODE_QTR
+ignore symbol ATSCMH_SCCC_CODE_RES
+
+ignore symbol ATSCMH_RSFRAME_ENS_PRI
+ignore symbol ATSCMH_RSFRAME_ENS_SEC
+
+ignore symbol ATSCMH_RSFRAME_PRI_ONLY
+ignore symbol ATSCMH_RSFRAME_PRI_SEC
+ignore symbol ATSCMH_RSFRAME_RES
+
+ignore symbol ATSCMH_RSCODE_211_187
+ignore symbol ATSCMH_RSCODE_223_187
+ignore symbol ATSCMH_RSCODE_235_187
+ignore symbol ATSCMH_RSCODE_RES
+
+ignore symbol FE_SCALE_NOT_AVAILABLE
+ignore symbol FE_SCALE_DECIBEL
+ignore symbol FE_SCALE_RELATIVE
+ignore symbol FE_SCALE_COUNTER
diff --git a/Documentation/media/index.rst b/Documentation/media/index.rst
index 7f8f0af620ce..1cf5316c8ff8 100644
--- a/Documentation/media/index.rst
+++ b/Documentation/media/index.rst
@@ -1,7 +1,11 @@
Linux Media Subsystem Documentation
===================================
-Contents:
+.. only:: html
+
+ .. class:: toc-title
+
+ Table of Contents
.. toctree::
:maxdepth: 2
@@ -10,6 +14,7 @@ Contents:
media_kapi
dvb-drivers/index
v4l-drivers/index
+ cec-drivers/index
.. only:: subproject
diff --git a/Documentation/media/kapi/cec-core.rst b/Documentation/media/kapi/cec-core.rst
index 7a04c5386dc8..28866259998c 100644
--- a/Documentation/media/kapi/cec-core.rst
+++ b/Documentation/media/kapi/cec-core.rst
@@ -107,6 +107,7 @@ your driver:
int (*adap_transmit)(struct cec_adapter *adap, u8 attempts,
u32 signal_free_time, struct cec_msg *msg);
void (*adap_status)(struct cec_adapter *adap, struct seq_file *file);
+ void (*adap_free)(struct cec_adapter *adap);
/* High-level callbacks */
...
@@ -184,6 +185,14 @@ To log the current CEC hardware status:
This optional callback can be used to show the status of the CEC hardware.
The status is available through debugfs: cat /sys/kernel/debug/cec/cecX/status
+To free any resources when the adapter is deleted:
+
+.. c:function::
+ void (*adap_free)(struct cec_adapter *adap);
+
+This optional callback can be used to free any resources that might have been
+allocated by the driver. It's called from cec_delete_adapter.
+
Your adapter driver will also have to react to events (typically interrupt
driven) by calling into the framework in the following situations:
@@ -194,6 +203,11 @@ When a transmit finished (successfully or otherwise):
void cec_transmit_done(struct cec_adapter *adap, u8 status, u8 arb_lost_cnt,
u8 nack_cnt, u8 low_drive_cnt, u8 error_cnt);
+or:
+
+.. c:function::
+ void cec_transmit_attempt_done(struct cec_adapter *adap, u8 status);
+
The status can be one of:
CEC_TX_STATUS_OK:
@@ -231,6 +245,11 @@ to 1, if the hardware does support retry then either set these counters to
0 if the hardware provides no feedback of which errors occurred and how many
times, or fill in the correct values as reported by the hardware.
+The cec_transmit_attempt_done() function is a helper for cases where the
+hardware never retries, so the transmit is always for just a single
+attempt. It will call cec_transmit_done() in turn, filling in 1 for the
+count argument corresponding to the status. Or all 0 if the status was OK.
+
When a CEC message was received:
.. c:function::
@@ -307,6 +326,14 @@ to another valid physical address, then this function will first set the
address to CEC_PHYS_ADDR_INVALID before enabling the new physical address.
.. c:function::
+ void cec_s_phys_addr_from_edid(struct cec_adapter *adap,
+ const struct edid *edid);
+
+A helper function that extracts the physical address from the edid struct
+and calls cec_s_phys_addr() with that address, or CEC_PHYS_ADDR_INVALID
+if the EDID did not contain a physical address or edid was a NULL pointer.
+
+.. c:function::
int cec_s_log_addrs(struct cec_adapter *adap,
struct cec_log_addrs *log_addrs, bool block);
@@ -318,3 +345,34 @@ log_addrs->num_log_addrs set to 0. The block argument is ignored when
unconfiguring. This function will just return if the physical address is
invalid. Once the physical address becomes valid, then the framework will
attempt to claim these logical addresses.
+
+CEC Pin framework
+-----------------
+
+Most CEC hardware operates on full CEC messages where the software provides
+the message and the hardware handles the low-level CEC protocol. But some
+hardware only drives the CEC pin and software has to handle the low-level
+CEC protocol. The CEC pin framework was created to handle such devices.
+
+Note that due to the close-to-realtime requirements it can never be guaranteed
+to work 100%. This framework uses highres timers internally, but if a
+timer goes off too late by more than 300 microseconds wrong results can
+occur. In reality it appears to be fairly reliable.
+
+One advantage of this low-level implementation is that it can be used as
+a cheap CEC analyser, especially if interrupts can be used to detect
+CEC pin transitions from low to high or vice versa.
+
+.. kernel-doc:: include/media/cec-pin.h
+
+CEC Notifier framework
+----------------------
+
+Most drm HDMI implementations have an integrated CEC implementation and no
+notifier support is needed. But some have independent CEC implementations
+that have their own driver. This could be an IP block for an SoC or a
+completely separate chip that deals with the CEC pin. For those cases a
+drm driver can install a notifier and use the notifier to inform the
+CEC driver about changes in the physical address.
+
+.. kernel-doc:: include/media/cec-notifier.h
diff --git a/Documentation/media/kapi/csi2.rst b/Documentation/media/kapi/csi2.rst
index e33fcb967922..0560100efca2 100644
--- a/Documentation/media/kapi/csi2.rst
+++ b/Documentation/media/kapi/csi2.rst
@@ -51,6 +51,16 @@ not active. Some transmitters do this automatically but some have to
be explicitly programmed to do so, and some are unable to do so
altogether due to hardware constraints.
+Stopping the transmitter
+^^^^^^^^^^^^^^^^^^^^^^^^
+
+A transmitter stops sending the stream of images as a result of
+calling the ``.s_stream()`` callback. Some transmitters may stop the
+stream at a frame boundary whereas others stop immediately,
+effectively leaving the current frame unfinished. The receiver driver
+should not make assumptions either way, but function properly in both
+cases.
+
Receiver drivers
----------------
diff --git a/Documentation/media/kapi/dtv-core.rst b/Documentation/media/kapi/dtv-core.rst
index ff86bf0abeae..de9a228aca8a 100644
--- a/Documentation/media/kapi/dtv-core.rst
+++ b/Documentation/media/kapi/dtv-core.rst
@@ -1,6 +1,31 @@
Digital TV (DVB) devices
------------------------
+Digital TV devices are implemented by several different drivers:
+
+- A bridge driver that is responsible to talk with the bus where the other
+ devices are connected (PCI, USB, SPI), bind to the other drivers and
+ implement the digital demux logic (either in software or in hardware);
+
+- Frontend drivers that are usually implemented as two separate drivers:
+
+ - A tuner driver that implements the logic with commands the part of the
+ hardware with is reponsible to tune into a digital TV transponder or
+ physical channel. The output of a tuner is usually a baseband or
+ Intermediate Frequency (IF) signal;
+
+ - A demodulator driver (a.k.a "demod") that implements the logic with
+ commands the digital TV decoding hardware. The output of a demod is
+ a digital stream, with multiple audio, video and data channels typically
+ multiplexed using MPEG Transport Stream [#f1]_.
+
+On most hardware, the frontend drivers talk with the bridge driver using an
+I2C bus.
+
+.. [#f1] Some standards use TCP/IP for multiplexing data, like DVB-H (an
+ abandoned standard, not used anymore) and ATSC version 3.0 current
+ proposals. Currently, the DVB subsystem doesn't implement those standards.
+
Digital TV Common functions
---------------------------
@@ -55,8 +80,141 @@ Digital TV Frontend
The Digital TV Frontend kABI defines a driver-internal interface for
registering low-level, hardware specific driver to a hardware independent
frontend layer. It is only of interest for Digital TV device driver writers.
-The header file for this API is named dvb_frontend.h and located in
-drivers/media/dvb-core.
+The header file for this API is named ``dvb_frontend.h`` and located in
+``drivers/media/dvb-core``.
+
+Demodulator driver
+^^^^^^^^^^^^^^^^^^
+
+The demodulator driver is responsible to talk with the decoding part of the
+hardware. Such driver should implement :c:type:`dvb_frontend_ops`, with
+tells what type of digital TV standards are supported, and points to a
+series of functions that allow the DVB core to command the hardware via
+the code under ``drivers/media/dvb-core/dvb_frontend.c``.
+
+A typical example of such struct in a driver ``foo`` is::
+
+ static struct dvb_frontend_ops foo_ops = {
+ .delsys = { SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A },
+ .info = {
+ .name = "foo DVB-T/T2/C driver",
+ .caps = FE_CAN_FEC_1_2 |
+ FE_CAN_FEC_2_3 |
+ FE_CAN_FEC_3_4 |
+ FE_CAN_FEC_5_6 |
+ FE_CAN_FEC_7_8 |
+ FE_CAN_FEC_AUTO |
+ FE_CAN_QPSK |
+ FE_CAN_QAM_16 |
+ FE_CAN_QAM_32 |
+ FE_CAN_QAM_64 |
+ FE_CAN_QAM_128 |
+ FE_CAN_QAM_256 |
+ FE_CAN_QAM_AUTO |
+ FE_CAN_TRANSMISSION_MODE_AUTO |
+ FE_CAN_GUARD_INTERVAL_AUTO |
+ FE_CAN_HIERARCHY_AUTO |
+ FE_CAN_MUTE_TS |
+ FE_CAN_2G_MODULATION,
+ .frequency_min = 42000000, /* Hz */
+ .frequency_max = 1002000000, /* Hz */
+ .symbol_rate_min = 870000,
+ .symbol_rate_max = 11700000
+ },
+ .init = foo_init,
+ .sleep = foo_sleep,
+ .release = foo_release,
+ .set_frontend = foo_set_frontend,
+ .get_frontend = foo_get_frontend,
+ .read_status = foo_get_status_and_stats,
+ .tune = foo_tune,
+ .i2c_gate_ctrl = foo_i2c_gate_ctrl,
+ .get_frontend_algo = foo_get_algo,
+ };
+
+A typical example of such struct in a driver ``bar`` meant to be used on
+Satellite TV reception is::
+
+ static const struct dvb_frontend_ops bar_ops = {
+ .delsys = { SYS_DVBS, SYS_DVBS2 },
+ .info = {
+ .name = "Bar DVB-S/S2 demodulator",
+ .frequency_min = 500000, /* KHz */
+ .frequency_max = 2500000, /* KHz */
+ .frequency_stepsize = 0,
+ .symbol_rate_min = 1000000,
+ .symbol_rate_max = 45000000,
+ .symbol_rate_tolerance = 500,
+ .caps = FE_CAN_INVERSION_AUTO |
+ FE_CAN_FEC_AUTO |
+ FE_CAN_QPSK,
+ },
+ .init = bar_init,
+ .sleep = bar_sleep,
+ .release = bar_release,
+ .set_frontend = bar_set_frontend,
+ .get_frontend = bar_get_frontend,
+ .read_status = bar_get_status_and_stats,
+ .i2c_gate_ctrl = bar_i2c_gate_ctrl,
+ .get_frontend_algo = bar_get_algo,
+ .tune = bar_tune,
+
+ /* Satellite-specific */
+ .diseqc_send_master_cmd = bar_send_diseqc_msg,
+ .diseqc_send_burst = bar_send_burst,
+ .set_tone = bar_set_tone,
+ .set_voltage = bar_set_voltage,
+ };
+
+.. note::
+
+ #) For satellite digital TV standards (DVB-S, DVB-S2, ISDB-S), the
+ frequencies are specified in kHz, while, for terrestrial and cable
+ standards, they're specified in Hz. Due to that, if the same frontend
+ supports both types, you'll need to have two separate
+ :c:type:`dvb_frontend_ops` structures, one for each standard.
+ #) The ``.i2c_gate_ctrl`` field is present only when the hardware has
+ allows controlling an I2C gate (either directly of via some GPIO pin),
+ in order to remove the tuner from the I2C bus after a channel is
+ tuned.
+ #) All new drivers should implement the
+ :ref:`DVBv5 statistics <dvbv5_stats>` via ``.read_status``.
+ Yet, there are a number of callbacks meant to get statistics for
+ signal strength, S/N and UCB. Those are there to provide backward
+ compatibility with legacy applications that don't support the DVBv5
+ API. Implementing those callbacks are optional. Those callbacks may be
+ removed in the future, after we have all existing drivers supporting
+ DVBv5 stats.
+ #) Other callbacks are required for satellite TV standards, in order to
+ control LNBf and DiSEqC: ``.diseqc_send_master_cmd``,
+ ``.diseqc_send_burst``, ``.set_tone``, ``.set_voltage``.
+
+.. |delta| unicode:: U+00394
+
+The ``drivers/media/dvb-core/dvb_frontend.c`` has a kernel thread with is
+responsible for tuning the device. It supports multiple algoritms to
+detect a channel, as defined at enum :c:func:`dvbfe_algo`.
+
+The algorithm to be used is obtained via ``.get_frontend_algo``. If the driver
+doesn't fill its field at struct :c:type:`dvb_frontend_ops`, it will default to
+``DVBFE_ALGO_SW``, meaning that the dvb-core will do a zigzag when tuning,
+e. g. it will try first to use the specified center frequency ``f``,
+then, it will do ``f`` + |delta|, ``f`` - |delta|, ``f`` + 2 x |delta|,
+``f`` - 2 x |delta| and so on.
+
+If the hardware has internally a some sort of zigzag algorithm, you should
+define a ``.get_frontend_algo`` function that would return ``DVBFE_ALGO_HW``.
+
+.. note::
+
+ The core frontend support also supports
+ a third type (``DVBFE_ALGO_CUSTOM``), in order to allow the driver to
+ define its own hardware-assisted algorithm. Very few hardware need to
+ use it nowadays. Using ``DVBFE_ALGO_CUSTOM`` require to provide other
+ function callbacks at struct :c:type:`dvb_frontend_ops`.
+
+Attaching frontend driver to the bridge driver
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Before using the Digital TV frontend core, the bridge driver should attach
the frontend demod, tuner and SEC devices and call
@@ -74,6 +232,287 @@ part of their handler for :c:type:`device_driver`.\ ``resume()``.
A few other optional functions are provided to handle some special cases.
+.. _dvbv5_stats:
+
+Digital TV Frontend statistics
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Introduction
+^^^^^^^^^^^^
+
+Digital TV frontends provide a range of
+:ref:`statistics <frontend-stat-properties>` meant to help tuning the device
+and measuring the quality of service.
+
+For each statistics measurement, the driver should set the type of scale used,
+or ``FE_SCALE_NOT_AVAILABLE`` if the statistics is not available on a given
+time. Drivers should also provide the number of statistics for each type.
+that's usually 1 for most video standards [#f2]_.
+
+Drivers should initialize each statistic counters with length and
+scale at its init code. For example, if the frontend provides signal
+strength, it should have, on its init code::
+
+ struct dtv_frontend_properties *c = &state->fe.dtv_property_cache;
+
+ c->strength.len = 1;
+ c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+
+And, when the statistics got updated, set the scale::
+
+ c->strength.stat[0].scale = FE_SCALE_DECIBEL;
+ c->strength.stat[0].uvalue = strength;
+
+.. [#f2] For ISDB-T, it may provide both a global statistics and a per-layer
+ set of statistics. On such cases, len should be equal to 4. The first
+ value corresponds to the global stat; the other ones to each layer, e. g.:
+
+ - c->cnr.stat[0] for global S/N carrier ratio,
+ - c->cnr.stat[1] for Layer A S/N carrier ratio,
+ - c->cnr.stat[2] for layer B S/N carrier ratio,
+ - c->cnr.stat[3] for layer C S/N carrier ratio.
+
+.. note:: Please prefer to use ``FE_SCALE_DECIBEL`` instead of
+ ``FE_SCALE_RELATIVE`` for signal strength and CNR measurements.
+
+Groups of statistics
+^^^^^^^^^^^^^^^^^^^^
+
+There are several groups of statistics currently supported:
+
+Signal strength (:ref:`DTV-STAT-SIGNAL-STRENGTH`)
+ - Measures the signal strength level at the analog part of the tuner or
+ demod.
+
+ - Typically obtained from the gain applied to the tuner and/or frontend
+ in order to detect the carrier. When no carrier is detected, the gain is
+ at the maximum value (so, strength is on its minimal).
+
+ - As the gain is visible through the set of registers that adjust the gain,
+ typically, this statistics is always available [#f3]_.
+
+ - Drivers should try to make it available all the times, as this statistics
+ can be used when adjusting an antenna position and to check for troubles
+ at the cabling.
+
+ .. [#f3] On a few devices, the gain keeps floating if no carrier.
+ On such devices, strength report should check first if carrier is
+ detected at the tuner (``FE_HAS_CARRIER``, see :c:type:`fe_status`),
+ and otherwise return the lowest possible value.
+
+Carrier Signal to Noise ratio (:ref:`DTV-STAT-CNR`)
+ - Signal to Noise ratio for the main carrier.
+
+ - Signal to Noise measurement depends on the device. On some hardware, is
+ available when the main carrier is detected. On those hardware, CNR
+ measurement usually comes from the tuner (e. g. after ``FE_HAS_CARRIER``,
+ see :c:type:`fe_status`).
+
+ On other devices, it requires inner FEC decoding,
+ as the frontend measures it indirectly from other parameters (e. g. after
+ ``FE_HAS_VITERBI``, see :c:type:`fe_status`).
+
+ Having it available after inner FEC is more common.
+
+Bit counts post-FEC (:ref:`DTV-STAT-POST-ERROR-BIT-COUNT` and :ref:`DTV-STAT-POST-TOTAL-BIT-COUNT`)
+ - Those counters measure the number of bits and bit errors errors after
+ the forward error correction (FEC) on the inner coding block
+ (after Viterbi, LDPC or other inner code).
+
+ - Due to its nature, those statistics depend on full coding lock
+ (e. g. after ``FE_HAS_SYNC`` or after ``FE_HAS_LOCK``,
+ see :c:type:`fe_status`).
+
+Bit counts pre-FEC (:ref:`DTV-STAT-PRE-ERROR-BIT-COUNT` and :ref:`DTV-STAT-PRE-TOTAL-BIT-COUNT`)
+ - Those counters measure the number of bits and bit errors errors before
+ the forward error correction (FEC) on the inner coding block
+ (before Viterbi, LDPC or other inner code).
+
+ - Not all frontends provide this kind of statistics.
+
+ - Due to its nature, those statistics depend on inner coding lock (e. g.
+ after ``FE_HAS_VITERBI``, see :c:type:`fe_status`).
+
+Block counts (:ref:`DTV-STAT-ERROR-BLOCK-COUNT` and :ref:`DTV-STAT-TOTAL-BLOCK-COUNT`)
+ - Those counters measure the number of blocks and block errors errors after
+ the forward error correction (FEC) on the inner coding block
+ (before Viterbi, LDPC or other inner code).
+
+ - Due to its nature, those statistics depend on full coding lock
+ (e. g. after ``FE_HAS_SYNC`` or after
+ ``FE_HAS_LOCK``, see :c:type:`fe_status`).
+
+.. note:: All counters should be monotonically increased as they're
+ collected from the hardware.
+
+A typical example of the logic that handle status and statistics is::
+
+ static int foo_get_status_and_stats(struct dvb_frontend *fe)
+ {
+ struct foo_state *state = fe->demodulator_priv;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+
+ int rc;
+ enum fe_status *status;
+
+ /* Both status and strength are always available */
+ rc = foo_read_status(fe, &status);
+ if (rc < 0)
+ return rc;
+
+ rc = foo_read_strength(fe);
+ if (rc < 0)
+ return rc;
+
+ /* Check if CNR is available */
+ if (!(fe->status & FE_HAS_CARRIER))
+ return 0;
+
+ rc = foo_read_cnr(fe);
+ if (rc < 0)
+ return rc;
+
+ /* Check if pre-BER stats are available */
+ if (!(fe->status & FE_HAS_VITERBI))
+ return 0;
+
+ rc = foo_get_pre_ber(fe);
+ if (rc < 0)
+ return rc;
+
+ /* Check if post-BER stats are available */
+ if (!(fe->status & FE_HAS_SYNC))
+ return 0;
+
+ rc = foo_get_post_ber(fe);
+ if (rc < 0)
+ return rc;
+ }
+
+ static const struct dvb_frontend_ops ops = {
+ /* ... */
+ .read_status = foo_get_status_and_stats,
+ };
+
+Statistics collect
+^^^^^^^^^^^^^^^^^^
+
+On almost all frontend hardware, the bit and byte counts are stored by
+the hardware after a certain amount of time or after the total bit/block
+counter reaches a certain value (usually programable), for example, on
+every 1000 ms or after receiving 1,000,000 bits.
+
+So, if you read the registers too soon, you'll end by reading the same
+value as in the previous reading, causing the monotonic value to be
+incremented too often.
+
+Drivers should take the responsibility to avoid too often reads. That
+can be done using two approaches:
+
+if the driver have a bit that indicates when a collected data is ready
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+Driver should check such bit before making the statistics available.
+
+An example of such behavior can be found at this code snippet (adapted
+from mb86a20s driver's logic)::
+
+ static int foo_get_pre_ber(struct dvb_frontend *fe)
+ {
+ struct foo_state *state = fe->demodulator_priv;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ int rc, bit_error;
+
+ /* Check if the BER measures are already available */
+ rc = foo_read_u8(state, 0x54);
+ if (rc < 0)
+ return rc;
+
+ if (!rc)
+ return 0;
+
+ /* Read Bit Error Count */
+ bit_error = foo_read_u32(state, 0x55);
+ if (bit_error < 0)
+ return bit_error;
+
+ /* Read Total Bit Count */
+ rc = foo_read_u32(state, 0x51);
+ if (rc < 0)
+ return rc;
+
+ c->pre_bit_error.stat[0].scale = FE_SCALE_COUNTER;
+ c->pre_bit_error.stat[0].uvalue += bit_error;
+ c->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER;
+ c->pre_bit_count.stat[0].uvalue += rc;
+
+ return 0;
+ }
+
+If the driver doesn't provide a statistics available check bit
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+A few devices, however, may not provide a way to check if the stats are
+available (or the way to check it is unknown). They may not even provide
+a way to directly read the total number of bits or blocks.
+
+On those devices, the driver need to ensure that it won't be reading from
+the register too often and/or estimate the total number of bits/blocks.
+
+On such drivers, a typical routine to get statistics would be like
+(adapted from dib8000 driver's logic)::
+
+ struct foo_state {
+ /* ... */
+
+ unsigned long per_jiffies_stats;
+ }
+
+ static int foo_get_pre_ber(struct dvb_frontend *fe)
+ {
+ struct foo_state *state = fe->demodulator_priv;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ int rc, bit_error;
+ u64 bits;
+
+ /* Check if time for stats was elapsed */
+ if (!time_after(jiffies, state->per_jiffies_stats))
+ return 0;
+
+ /* Next stat should be collected in 1000 ms */
+ state->per_jiffies_stats = jiffies + msecs_to_jiffies(1000);
+
+ /* Read Bit Error Count */
+ bit_error = foo_read_u32(state, 0x55);
+ if (bit_error < 0)
+ return bit_error;
+
+ /*
+ * On this particular frontend, there's no register that
+ * would provide the number of bits per 1000ms sample. So,
+ * some function would calculate it based on DTV properties
+ */
+ bits = get_number_of_bits_per_1000ms(fe);
+
+ c->pre_bit_error.stat[0].scale = FE_SCALE_COUNTER;
+ c->pre_bit_error.stat[0].uvalue += bit_error;
+ c->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER;
+ c->pre_bit_count.stat[0].uvalue += bits;
+
+ return 0;
+ }
+
+Please notice that, on both cases, we're getting the statistics using the
+:c:type:`dvb_frontend_ops` ``.read_status`` callback. The rationale is that
+the frontend core will automatically call this function periodically
+(usually, 3 times per second, when the frontend is locked).
+
+That warrants that we won't miss to collect a counter and increment the
+monotonic stats at the right time.
+
+Digital TV Frontend functions and types
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
.. kernel-doc:: drivers/media/dvb-core/dvb_frontend.h
diff --git a/Documentation/media/kapi/v4l2-core.rst b/Documentation/media/kapi/v4l2-core.rst
index d8f6c46d26d5..c7434f38fd9c 100644
--- a/Documentation/media/kapi/v4l2-core.rst
+++ b/Documentation/media/kapi/v4l2-core.rst
@@ -19,7 +19,7 @@ Video4Linux devices
v4l2-mc
v4l2-mediabus
v4l2-mem2mem
- v4l2-of
+ v4l2-fwnode
v4l2-rect
v4l2-tuner
v4l2-common
diff --git a/Documentation/media/kapi/v4l2-event.rst b/Documentation/media/kapi/v4l2-event.rst
index 9a5e31546ae3..9938d21ef4d1 100644
--- a/Documentation/media/kapi/v4l2-event.rst
+++ b/Documentation/media/kapi/v4l2-event.rst
@@ -67,6 +67,8 @@ type).
The ops argument allows the driver to specify a number of callbacks:
+.. tabularcolumns:: |p{1.5cm}|p{16.0cm}|
+
======== ==============================================================
Callback Description
======== ==============================================================
diff --git a/Documentation/media/kapi/v4l2-fwnode.rst b/Documentation/media/kapi/v4l2-fwnode.rst
new file mode 100644
index 000000000000..6c8bccdfeb25
--- /dev/null
+++ b/Documentation/media/kapi/v4l2-fwnode.rst
@@ -0,0 +1,3 @@
+V4L2 fwnode kAPI
+^^^^^^^^^^^^^^^^
+.. kernel-doc:: include/media/v4l2-fwnode.h
diff --git a/Documentation/media/kapi/v4l2-of.rst b/Documentation/media/kapi/v4l2-of.rst
deleted file mode 100644
index 1ddf76b00944..000000000000
--- a/Documentation/media/kapi/v4l2-of.rst
+++ /dev/null
@@ -1,3 +0,0 @@
-V4L2 Open Firmware kAPI
-^^^^^^^^^^^^^^^^^^^^^^^
-.. kernel-doc:: include/media/v4l2-of.h
diff --git a/Documentation/media/media_kapi.rst b/Documentation/media/media_kapi.rst
index bc0638956a43..83da736fad72 100644
--- a/Documentation/media/media_kapi.rst
+++ b/Documentation/media/media_kapi.rst
@@ -20,7 +20,9 @@ more details.
For more details see the file COPYING in the source distribution of Linux.
-.. class:: toc-title
+.. only:: html
+
+ .. class:: toc-title
Table of Contents
diff --git a/Documentation/media/media_uapi.rst b/Documentation/media/media_uapi.rst
index fd8ebe002cd2..28eb35a1f965 100644
--- a/Documentation/media/media_uapi.rst
+++ b/Documentation/media/media_uapi.rst
@@ -14,7 +14,9 @@ any later version published by the Free Software Foundation. A copy of
the license is included in the chapter entitled "GNU Free Documentation
License".
-.. class:: toc-title
+.. only:: html
+
+ .. class:: toc-title
Table of Contents
diff --git a/Documentation/media/typical_media_device.svg b/Documentation/media/typical_media_device.svg
index 0c8abd69f39a..d6fad90ec199 100644
--- a/Documentation/media/typical_media_device.svg
+++ b/Documentation/media/typical_media_device.svg
@@ -1,2948 +1,106 @@
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- inkscape:version="0.91 r13725"
- sodipodi:docname="typical_media_device.svg"
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+</g><text id="text1499" class="TextShape" x="-11700.553" y="565.61298" fill-rule="evenodd" font-family="Serif, serif" font-size="493.88px" stroke-linejoin="round" stroke-width="28.222"><tspan id="tspan1501" class="TextParagraph" font-family="Serif, serif" font-size="493.88px"><tspan id="tspan1503" class="TextPosition" transform="matrix(0,-1,1,0,8509,40173)" x="12640.447" y="16397.613" font-family="Serif, serif" font-size="493.88px"><tspan id="tspan1505" fill="#000000" font-family="Serif, serif" font-size="493.88px">PCI, USB, SPI, I2C, ...</tspan></tspan></tspan></text>
+<path id="path1511" d="m12408 15562h-1115.1v-1420.3h2230.2v1420.3h-1115.1z" fill="#cfe7f5" fill-rule="evenodd" stroke-linejoin="round" stroke-width="28.222" style=""/><path id="path1513" d="m12408 15562h-1115.1v-1420.3h2230.2v1420.3h-1115.1z" fill="none" stroke="#3465af" stroke-linejoin="round" stroke-width="19.847" style=""/><text id="text1515" class="TextShape" x="-1394.0863" y="590.73016" fill-rule="evenodd" font-family="Serif, serif" font-size="493.88px" stroke-linejoin="round" stroke-width="28.222"><tspan id="tspan1517" class="TextParagraph" font-family="Serif, serif" font-size="493.88px"><tspan id="tspan1519" class="TextPosition" x="11487.915" y="14672.743" font-family="Serif, serif" font-size="493.88px"><tspan id="tspan1521" fill="#000000" font-family="Serif, serif" font-size="493.88px">Bridge</tspan></tspan></tspan></text>
+<text id="text1523" class="TextShape" x="-1450.5308" y="1324.5078" fill-rule="evenodd" font-family="Serif, serif" font-size="493.88px" stroke-linejoin="round" stroke-width="28.222"><tspan id="tspan1525" class="TextParagraph" font-family="Serif, serif" font-size="493.88px"><tspan id="tspan1527" class="TextPosition" x="11431.471" y="15406.52" font-family="Serif, serif" font-size="493.88px"><tspan id="tspan1529" fill="#000000" font-family="Serif, serif" font-size="493.88px"> DMA</tspan></tspan></tspan></text>
+</svg>
diff --git a/Documentation/media/uapi/cec/cec-api.rst b/Documentation/media/uapi/cec/cec-api.rst
index bb018709970c..b68ca9c1d2e0 100644
--- a/Documentation/media/uapi/cec/cec-api.rst
+++ b/Documentation/media/uapi/cec/cec-api.rst
@@ -10,7 +10,10 @@ Part V - Consumer Electronics Control API
This part describes the CEC: Consumer Electronics Control
-.. class:: toc-title
+
+.. only:: html
+
+ .. class:: toc-title
Table of Contents
diff --git a/Documentation/media/uapi/cec/cec-func-close.rst b/Documentation/media/uapi/cec/cec-func-close.rst
index 895d9c2d1c04..334358dfa72e 100644
--- a/Documentation/media/uapi/cec/cec-func-close.rst
+++ b/Documentation/media/uapi/cec/cec-func-close.rst
@@ -40,7 +40,7 @@ freed. The device configuration remain unchanged.
Return Value
============
-:c:func:`close()` returns 0 on success. On error, -1 is returned, and
+:c:func:`close() <cec-close>` returns 0 on success. On error, -1 is returned, and
``errno`` is set appropriately. Possible error codes are:
``EBADF``
diff --git a/Documentation/media/uapi/cec/cec-func-ioctl.rst b/Documentation/media/uapi/cec/cec-func-ioctl.rst
index 22fb6304a2df..e2b6260b0086 100644
--- a/Documentation/media/uapi/cec/cec-func-ioctl.rst
+++ b/Documentation/media/uapi/cec/cec-func-ioctl.rst
@@ -39,7 +39,7 @@ Arguments
Description
===========
-The :c:func:`ioctl()` function manipulates cec device parameters. The
+The :c:func:`ioctl() <cec-ioctl>` function manipulates cec device parameters. The
argument ``fd`` must be an open file descriptor.
The ioctl ``request`` code specifies the cec function to be called. It
diff --git a/Documentation/media/uapi/cec/cec-func-open.rst b/Documentation/media/uapi/cec/cec-func-open.rst
index 18dfb62f2efe..5d6663a649bd 100644
--- a/Documentation/media/uapi/cec/cec-func-open.rst
+++ b/Documentation/media/uapi/cec/cec-func-open.rst
@@ -46,7 +46,7 @@ Arguments
Description
===========
-To open a cec device applications call :c:func:`open()` with the
+To open a cec device applications call :c:func:`open() <cec-open>` with the
desired device name. The function has no side effects; the device
configuration remain unchanged.
@@ -58,7 +58,7 @@ EBADF.
Return Value
============
-:c:func:`open()` returns the new file descriptor on success. On error,
+:c:func:`open() <cec-open>` returns the new file descriptor on success. On error,
-1 is returned, and ``errno`` is set appropriately. Possible error codes
include:
diff --git a/Documentation/media/uapi/cec/cec-func-poll.rst b/Documentation/media/uapi/cec/cec-func-poll.rst
index fa0abd8fb160..d49f1ee0742d 100644
--- a/Documentation/media/uapi/cec/cec-func-poll.rst
+++ b/Documentation/media/uapi/cec/cec-func-poll.rst
@@ -39,10 +39,10 @@ Arguments
Description
===========
-With the :c:func:`poll()` function applications can wait for CEC
+With the :c:func:`poll() <cec-poll>` function applications can wait for CEC
events.
-On success :c:func:`poll()` returns the number of file descriptors
+On success :c:func:`poll() <cec-poll>` returns the number of file descriptors
that have been selected (that is, file descriptors for which the
``revents`` field of the respective struct :c:type:`pollfd`
is non-zero). CEC devices set the ``POLLIN`` and ``POLLRDNORM`` flags in
@@ -53,13 +53,13 @@ then the ``POLLPRI`` flag is set. When the function times out it returns
a value of zero, on failure it returns -1 and the ``errno`` variable is
set appropriately.
-For more details see the :c:func:`poll()` manual page.
+For more details see the :c:func:`poll() <cec-poll>` manual page.
Return Value
============
-On success, :c:func:`poll()` returns the number structures which have
+On success, :c:func:`poll() <cec-poll>` returns the number structures which have
non-zero ``revents`` fields, or zero if the call timed out. On error -1
is returned, and the ``errno`` variable is set appropriately:
diff --git a/Documentation/media/uapi/cec/cec-funcs.rst b/Documentation/media/uapi/cec/cec-funcs.rst
index 5b7630f2e076..6d696cead5cb 100644
--- a/Documentation/media/uapi/cec/cec-funcs.rst
+++ b/Documentation/media/uapi/cec/cec-funcs.rst
@@ -7,7 +7,6 @@ Function Reference
.. toctree::
:maxdepth: 1
- :numbered:
cec-func-open
cec-func-close
diff --git a/Documentation/media/uapi/cec/cec-ioc-adap-g-caps.rst b/Documentation/media/uapi/cec/cec-ioc-adap-g-caps.rst
index a0e961f11017..6c1f6efb822e 100644
--- a/Documentation/media/uapi/cec/cec-ioc-adap-g-caps.rst
+++ b/Documentation/media/uapi/cec/cec-ioc-adap-g-caps.rst
@@ -21,7 +21,7 @@ Arguments
=========
``fd``
- File descriptor returned by :ref:`open() <cec-func-open>`.
+ File descriptor returned by :c:func:`open() <cec-open>`.
``argp``
@@ -113,6 +113,21 @@ returns the information to the application. The ioctl never fails.
- 0x00000020
- The CEC hardware can monitor all messages, not just directed and
broadcast messages.
+ * .. _`CEC-CAP-NEEDS-HPD`:
+
+ - ``CEC_CAP_NEEDS_HPD``
+ - 0x00000040
+ - The CEC hardware is only active if the HDMI Hotplug Detect pin is
+ high. This makes it impossible to use CEC to wake up displays that
+ set the HPD pin low when in standby mode, but keep the CEC bus
+ alive.
+ * .. _`CEC-CAP-MONITOR-PIN`:
+
+ - ``CEC_CAP_MONITOR_PIN``
+ - 0x00000080
+ - The CEC hardware can monitor CEC pin changes from low to high voltage
+ and vice versa. When in pin monitoring mode the application will
+ receive ``CEC_EVENT_PIN_CEC_LOW`` and ``CEC_EVENT_PIN_CEC_HIGH`` events.
diff --git a/Documentation/media/uapi/cec/cec-ioc-adap-g-log-addrs.rst b/Documentation/media/uapi/cec/cec-ioc-adap-g-log-addrs.rst
index fcf863ab6f43..84f431a022ad 100644
--- a/Documentation/media/uapi/cec/cec-ioc-adap-g-log-addrs.rst
+++ b/Documentation/media/uapi/cec/cec-ioc-adap-g-log-addrs.rst
@@ -48,7 +48,9 @@ can only be called by a file descriptor in initiator mode (see :ref:`CEC_S_MODE`
the ``EBUSY`` error code will be returned.
To clear existing logical addresses set ``num_log_addrs`` to 0. All other fields
-will be ignored in that case. The adapter will go to the unconfigured state.
+will be ignored in that case. The adapter will go to the unconfigured state and the
+``cec_version``, ``vendor_id`` and ``osd_name`` fields are all reset to their default
+values (CEC version 2.0, no vendor ID and an empty OSD name).
If the physical address is valid (see :ref:`ioctl CEC_ADAP_S_PHYS_ADDR <CEC_ADAP_S_PHYS_ADDR>`),
then this ioctl will block until all requested logical
@@ -63,7 +65,7 @@ logical address types are already defined will return with error ``EBUSY``.
.. c:type:: cec_log_addrs
-.. tabularcolumns:: |p{1.0cm}|p{7.5cm}|p{8.0cm}|
+.. tabularcolumns:: |p{1.0cm}|p{8.0cm}|p{7.5cm}|
.. cssclass:: longtable
@@ -146,6 +148,9 @@ logical address types are already defined will return with error ``EBUSY``.
give the CEC framework more information about the device type, even
though the framework won't use it directly in the CEC message.
+
+.. tabularcolumns:: |p{7.8cm}|p{1.0cm}|p{8.7cm}|
+
.. _cec-log-addrs-flags:
.. flat-table:: Flags for struct cec_log_addrs
@@ -173,7 +178,7 @@ logical address types are already defined will return with error ``EBUSY``.
to avoid trivial snooping of the keystrokes.
* .. _`CEC-LOG-ADDRS-FL-CDC-ONLY`:
- - `CEC_LOG_ADDRS_FL_CDC_ONLY`
+ - ``CEC_LOG_ADDRS_FL_CDC_ONLY``
- 4
- If this flag is set, then the device is CDC-Only. CDC-Only CEC devices
are CEC devices that can only handle CDC messages.
@@ -181,7 +186,7 @@ logical address types are already defined will return with error ``EBUSY``.
All other messages are ignored.
-.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
+.. tabularcolumns:: |p{7.8cm}|p{1.0cm}|p{8.7cm}|
.. _cec-versions:
diff --git a/Documentation/media/uapi/cec/cec-ioc-dqevent.rst b/Documentation/media/uapi/cec/cec-ioc-dqevent.rst
index 4d3570c2e0b3..a5c821809cc6 100644
--- a/Documentation/media/uapi/cec/cec-ioc-dqevent.rst
+++ b/Documentation/media/uapi/cec/cec-ioc-dqevent.rst
@@ -22,7 +22,7 @@ Arguments
=========
``fd``
- File descriptor returned by :ref:`open() <cec-func-open>`.
+ File descriptor returned by :c:func:`open() <cec-open>`.
``argp``
@@ -87,7 +87,7 @@ it is guaranteed that the state did change in between the two events.
this is more than enough.
-.. tabularcolumns:: |p{1.0cm}|p{4.2cm}|p{2.5cm}|p{8.8cm}|
+.. tabularcolumns:: |p{1.0cm}|p{4.4cm}|p{2.5cm}|p{9.6cm}|
.. c:type:: cec_event
@@ -98,10 +98,11 @@ it is guaranteed that the state did change in between the two events.
* - __u64
- ``ts``
- - :cspan:`1` Timestamp of the event in ns.
+ - :cspan:`1`\ Timestamp of the event in ns.
- The timestamp has been taken from the ``CLOCK_MONOTONIC`` clock. To access
- the same clock from userspace use :c:func:`clock_gettime`.
+ The timestamp has been taken from the ``CLOCK_MONOTONIC`` clock.
+
+ To access the same clock from userspace use :c:func:`clock_gettime`.
* - __u32
- ``event``
- :cspan:`1` The CEC event type, see :ref:`cec-events`.
@@ -146,6 +147,20 @@ it is guaranteed that the state did change in between the two events.
- 2
- Generated if one or more CEC messages were lost because the
application didn't dequeue CEC messages fast enough.
+ * .. _`CEC-EVENT-PIN-CEC-LOW`:
+
+ - ``CEC_EVENT_PIN_CEC_LOW``
+ - 3
+ - Generated if the CEC pin goes from a high voltage to a low voltage.
+ Only applies to adapters that have the ``CEC_CAP_MONITOR_PIN``
+ capability set.
+ * .. _`CEC-EVENT-PIN-CEC-HIGH`:
+
+ - ``CEC_EVENT_PIN_CEC_HIGH``
+ - 4
+ - Generated if the CEC pin goes from a low voltage to a high voltage.
+ Only applies to adapters that have the ``CEC_CAP_MONITOR_PIN``
+ capability set.
.. tabularcolumns:: |p{6.0cm}|p{0.6cm}|p{10.9cm}|
@@ -165,6 +180,12 @@ it is guaranteed that the state did change in between the two events.
opened. See the table above for which events do this. This allows
applications to learn the initial state of the CEC adapter at
open() time.
+ * .. _`CEC-EVENT-FL-DROPPED-EVENTS`:
+
+ - ``CEC_EVENT_FL_DROPPED_EVENTS``
+ - 2
+ - Set if one or more events of the given event type have been dropped.
+ This is an indication that the application cannot keep up.
diff --git a/Documentation/media/uapi/cec/cec-ioc-g-mode.rst b/Documentation/media/uapi/cec/cec-ioc-g-mode.rst
index 664f0d47bbcd..508e2e325683 100644
--- a/Documentation/media/uapi/cec/cec-ioc-g-mode.rst
+++ b/Documentation/media/uapi/cec/cec-ioc-g-mode.rst
@@ -108,6 +108,8 @@ Available follower modes are:
.. _cec-mode-follower_e:
+.. cssclass:: longtable
+
.. flat-table:: Follower Modes
:header-rows: 0
:stub-columns: 0
@@ -149,13 +151,28 @@ Available follower modes are:
code. You cannot become a follower if :ref:`CEC_CAP_TRANSMIT <CEC-CAP-TRANSMIT>`
is not set or if :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>` was specified,
the ``EINVAL`` error code is returned in that case.
+ * .. _`CEC-MODE-MONITOR-PIN`:
+
+ - ``CEC_MODE_MONITOR_PIN``
+ - 0xd0
+ - Put the file descriptor into pin monitoring mode. Can only be used in
+ combination with :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`,
+ otherwise the ``EINVAL`` error code will be returned.
+ This mode requires that the :ref:`CEC_CAP_MONITOR_PIN <CEC-CAP-MONITOR-PIN>`
+ capability is set, otherwise the ``EINVAL`` error code is returned.
+ While in pin monitoring mode this file descriptor can receive the
+ ``CEC_EVENT_PIN_CEC_LOW`` and ``CEC_EVENT_PIN_CEC_HIGH`` events to see the
+ low-level CEC pin transitions. This is very useful for debugging.
+ This mode is only allowed if the process has the ``CAP_NET_ADMIN``
+ capability. If that is not set, then the ``EPERM`` error code is returned.
* .. _`CEC-MODE-MONITOR`:
- ``CEC_MODE_MONITOR``
- 0xe0
- Put the file descriptor into monitor mode. Can only be used in
- combination with :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`, otherwise EINVAL error
- code will be returned. In monitor mode all messages this CEC
+ combination with :ref:`CEC_MODE_NO_INITIATOR <CEC-MODE-NO-INITIATOR>`,i
+ otherwise the ``EINVAL`` error code will be returned.
+ In monitor mode all messages this CEC
device transmits and all messages it receives (both broadcast
messages and directed messages for one its logical addresses) will
be reported. This is very useful for debugging. This is only
@@ -191,55 +208,68 @@ Core message processing details:
* .. _`CEC-MSG-GET-CEC-VERSION`:
- ``CEC_MSG_GET_CEC_VERSION``
- - When in passthrough mode this message has to be handled by
- userspace, otherwise the core will return the CEC version that was
- set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`.
+ - The core will return the CEC version that was set with
+ :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`,
+ except when in passthrough mode. In passthrough mode the core
+ does nothing and this message has to be handled by a follower
+ instead.
* .. _`CEC-MSG-GIVE-DEVICE-VENDOR-ID`:
- ``CEC_MSG_GIVE_DEVICE_VENDOR_ID``
- - When in passthrough mode this message has to be handled by
- userspace, otherwise the core will return the vendor ID that was
- set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`.
+ - The core will return the vendor ID that was set with
+ :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`,
+ except when in passthrough mode. In passthrough mode the core
+ does nothing and this message has to be handled by a follower
+ instead.
* .. _`CEC-MSG-ABORT`:
- ``CEC_MSG_ABORT``
- - When in passthrough mode this message has to be handled by
- userspace, otherwise the core will return a feature refused
- message as per the specification.
+ - The core will return a Feature Abort message with reason
+ 'Feature Refused' as per the specification, except when in
+ passthrough mode. In passthrough mode the core does nothing
+ and this message has to be handled by a follower instead.
* .. _`CEC-MSG-GIVE-PHYSICAL-ADDR`:
- ``CEC_MSG_GIVE_PHYSICAL_ADDR``
- - When in passthrough mode this message has to be handled by
- userspace, otherwise the core will report the current physical
- address.
+ - The core will report the current physical address, except when
+ in passthrough mode. In passthrough mode the core does nothing
+ and this message has to be handled by a follower instead.
* .. _`CEC-MSG-GIVE-OSD-NAME`:
- ``CEC_MSG_GIVE_OSD_NAME``
- - When in passthrough mode this message has to be handled by
- userspace, otherwise the core will report the current OSD name as
- was set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`.
+ - The core will report the current OSD name that was set with
+ :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`,
+ except when in passthrough mode. In passthrough mode the core
+ does nothing and this message has to be handled by a follower
+ instead.
* .. _`CEC-MSG-GIVE-FEATURES`:
- ``CEC_MSG_GIVE_FEATURES``
- - When in passthrough mode this message has to be handled by
- userspace, otherwise the core will report the current features as
- was set with :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`
- or the message is ignored if the CEC version was older than 2.0.
+ - The core will do nothing if the CEC version is older than 2.0,
+ otherwise it will report the current features that were set with
+ :ref:`ioctl CEC_ADAP_S_LOG_ADDRS <CEC_ADAP_S_LOG_ADDRS>`,
+ except when in passthrough mode. In passthrough mode the core
+ does nothing (for any CEC version) and this message has to be handled
+ by a follower instead.
* .. _`CEC-MSG-USER-CONTROL-PRESSED`:
- ``CEC_MSG_USER_CONTROL_PRESSED``
- - If :ref:`CEC_CAP_RC <CEC-CAP-RC>` is set, then generate a remote control key
- press. This message is always passed on to userspace.
+ - If :ref:`CEC_CAP_RC <CEC-CAP-RC>` is set and if
+ :ref:`CEC_LOG_ADDRS_FL_ALLOW_RC_PASSTHRU <CEC-LOG-ADDRS-FL-ALLOW-RC-PASSTHRU>`
+ is set, then generate a remote control key
+ press. This message is always passed on to the follower(s).
* .. _`CEC-MSG-USER-CONTROL-RELEASED`:
- ``CEC_MSG_USER_CONTROL_RELEASED``
- - If :ref:`CEC_CAP_RC <CEC-CAP-RC>` is set, then generate a remote control key
- release. This message is always passed on to userspace.
+ - If :ref:`CEC_CAP_RC <CEC-CAP-RC>` is set and if
+ :ref:`CEC_LOG_ADDRS_FL_ALLOW_RC_PASSTHRU <CEC-LOG-ADDRS-FL-ALLOW-RC-PASSTHRU>`
+ is set, then generate a remote control key
+ release. This message is always passed on to the follower(s).
* .. _`CEC-MSG-REPORT-PHYSICAL-ADDR`:
- ``CEC_MSG_REPORT_PHYSICAL_ADDR``
- The CEC framework will make note of the reported physical address
- and then just pass the message on to userspace.
+ and then just pass the message on to the follower(s).
diff --git a/Documentation/media/uapi/cec/cec-ioc-receive.rst b/Documentation/media/uapi/cec/cec-ioc-receive.rst
index 267044f7ac30..0f397c535a4c 100644
--- a/Documentation/media/uapi/cec/cec-ioc-receive.rst
+++ b/Documentation/media/uapi/cec/cec-ioc-receive.rst
@@ -195,6 +195,8 @@ View On' messages from initiator 0xf ('Unregistered') to destination 0 ('TV').
valid if the :ref:`CEC_TX_STATUS_ERROR <CEC-TX-STATUS-ERROR>` status bit is set.
+.. tabularcolumns:: |p{6.2cm}|p{1.0cm}|p{10.3cm}|
+
.. _cec-msg-flags:
.. flat-table:: Flags for struct cec_msg
diff --git a/Documentation/media/uapi/dvb/audio-channel-select.rst b/Documentation/media/uapi/dvb/audio-channel-select.rst
index 2ceb4efebdf0..8cab3d7abff5 100644
--- a/Documentation/media/uapi/dvb/audio-channel-select.rst
+++ b/Documentation/media/uapi/dvb/audio-channel-select.rst
@@ -44,7 +44,7 @@ Arguments
Description
-----------
-This ioctl is for DVB devices only. To control a V4L2 decoder use the
+This ioctl is for Digital TV devices only. To control a V4L2 decoder use the
V4L2 ``V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK`` control instead.
This ioctl call asks the Audio Device to select the requested channel if
diff --git a/Documentation/media/uapi/dvb/audio-fclose.rst b/Documentation/media/uapi/dvb/audio-fclose.rst
index 4df24c8d74ed..58d351a3af4b 100644
--- a/Documentation/media/uapi/dvb/audio-fclose.rst
+++ b/Documentation/media/uapi/dvb/audio-fclose.rst
@@ -2,14 +2,14 @@
.. _audio_fclose:
-=================
-DVB audio close()
-=================
+========================
+Digital TV audio close()
+========================
Name
----
-DVB audio close()
+Digital TV audio close()
.. attention:: This ioctl is deprecated
diff --git a/Documentation/media/uapi/dvb/audio-fopen.rst b/Documentation/media/uapi/dvb/audio-fopen.rst
index a802c2e0dc6a..4a174640bf11 100644
--- a/Documentation/media/uapi/dvb/audio-fopen.rst
+++ b/Documentation/media/uapi/dvb/audio-fopen.rst
@@ -2,14 +2,14 @@
.. _audio_fopen:
-================
-DVB audio open()
-================
+=======================
+Digital TV audio open()
+=======================
Name
----
-DVB audio open()
+Digital TV audio open()
.. attention:: This ioctl is deprecated
diff --git a/Documentation/media/uapi/dvb/audio-fwrite.rst b/Documentation/media/uapi/dvb/audio-fwrite.rst
index 8882cad7d165..4980ae7953ef 100644
--- a/Documentation/media/uapi/dvb/audio-fwrite.rst
+++ b/Documentation/media/uapi/dvb/audio-fwrite.rst
@@ -2,14 +2,14 @@
.. _audio_fwrite:
-=================
-DVB audio write()
-=================
+=========================
+Digital TV audio write()
+=========================
Name
----
-DVB audio write()
+Digital TV audio write()
.. attention:: This ioctl is deprecated
diff --git a/Documentation/media/uapi/dvb/audio-set-av-sync.rst b/Documentation/media/uapi/dvb/audio-set-av-sync.rst
index 0cef4917d2cf..cf621f3a3037 100644
--- a/Documentation/media/uapi/dvb/audio-set-av-sync.rst
+++ b/Documentation/media/uapi/dvb/audio-set-av-sync.rst
@@ -38,7 +38,7 @@ Arguments
- boolean state
- - Tells the DVB subsystem if A/V synchronization shall be ON or OFF.
+ - Tells the Digital TV subsystem if A/V synchronization shall be ON or OFF.
TRUE: AV-sync ON
diff --git a/Documentation/media/uapi/dvb/audio-set-bypass-mode.rst b/Documentation/media/uapi/dvb/audio-set-bypass-mode.rst
index b063c496c2eb..f0db1fbdb066 100644
--- a/Documentation/media/uapi/dvb/audio-set-bypass-mode.rst
+++ b/Documentation/media/uapi/dvb/audio-set-bypass-mode.rst
@@ -38,7 +38,7 @@ Arguments
- boolean mode
- Enables or disables the decoding of the current Audio stream in
- the DVB subsystem.
+ the Digital TV subsystem.
TRUE: Bypass is disabled
@@ -50,8 +50,8 @@ Description
This ioctl call asks the Audio Device to bypass the Audio decoder and
forward the stream without decoding. This mode shall be used if streams
-that can’t be handled by the DVB system shall be decoded. Dolby
-DigitalTM streams are automatically forwarded by the DVB subsystem if
+that can’t be handled by the Digial TV system shall be decoded. Dolby
+DigitalTM streams are automatically forwarded by the Digital TV subsystem if
the hardware can handle it.
diff --git a/Documentation/media/uapi/dvb/audio-set-mute.rst b/Documentation/media/uapi/dvb/audio-set-mute.rst
index 897e7228f4d8..0af105a8ddcc 100644
--- a/Documentation/media/uapi/dvb/audio-set-mute.rst
+++ b/Documentation/media/uapi/dvb/audio-set-mute.rst
@@ -48,7 +48,7 @@ Arguments
Description
-----------
-This ioctl is for DVB devices only. To control a V4L2 decoder use the
+This ioctl is for Digital TV devices only. To control a V4L2 decoder use the
V4L2 :ref:`VIDIOC_DECODER_CMD` with the
``V4L2_DEC_CMD_START_MUTE_AUDIO`` flag instead.
diff --git a/Documentation/media/uapi/dvb/audio.rst b/Documentation/media/uapi/dvb/audio.rst
index 155622185ea4..e9f9e589c486 100644
--- a/Documentation/media/uapi/dvb/audio.rst
+++ b/Documentation/media/uapi/dvb/audio.rst
@@ -2,15 +2,16 @@
.. _dvb_audio:
-################
-DVB Audio Device
-################
-The DVB audio device controls the MPEG2 audio decoder of the DVB
-hardware. It can be accessed through ``/dev/dvb/adapter?/audio?``. Data
+#######################
+Digital TV Audio Device
+#######################
+
+The Digital TV audio device controls the MPEG2 audio decoder of the Digital
+TV hardware. It can be accessed through ``/dev/dvb/adapter?/audio?``. Data
types and and ioctl definitions can be accessed by including
``linux/dvb/audio.h`` in your application.
-Please note that some DVB cards don’t have their own MPEG decoder, which
+Please note that some Digital TV cards don’t have their own MPEG decoder, which
results in the omission of the audio and video device.
These ioctls were also used by V4L2 to control MPEG decoders implemented
diff --git a/Documentation/media/uapi/dvb/audio_h.rst b/Documentation/media/uapi/dvb/audio_h.rst
deleted file mode 100644
index e00c3010fdf9..000000000000
--- a/Documentation/media/uapi/dvb/audio_h.rst
+++ /dev/null
@@ -1,9 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-.. _audio_h:
-
-*********************
-DVB Audio Header File
-*********************
-
-.. kernel-include:: $BUILDDIR/audio.h.rst
diff --git a/Documentation/media/uapi/dvb/ca-fclose.rst b/Documentation/media/uapi/dvb/ca-fclose.rst
index 5ecefa4abc3d..e84bbfcfa184 100644
--- a/Documentation/media/uapi/dvb/ca-fclose.rst
+++ b/Documentation/media/uapi/dvb/ca-fclose.rst
@@ -2,14 +2,14 @@
.. _ca_fclose:
-==============
-DVB CA close()
-==============
+=====================
+Digital TV CA close()
+=====================
Name
----
-DVB CA close()
+Digital TV CA close()
Synopsis
@@ -34,13 +34,10 @@ This system call closes a previously opened CA device.
Return Value
------------
-.. flat-table::
- :header-rows: 0
- :stub-columns: 0
+On success 0 is returned.
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
- - .. row 1
-
- - ``EBADF``
-
- - fd is not a valid open file descriptor.
+Generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/ca-fopen.rst b/Documentation/media/uapi/dvb/ca-fopen.rst
index 3d2819751446..056c71b53a70 100644
--- a/Documentation/media/uapi/dvb/ca-fopen.rst
+++ b/Documentation/media/uapi/dvb/ca-fopen.rst
@@ -2,14 +2,14 @@
.. _ca_fopen:
-=============
-DVB CA open()
-=============
+====================
+Digital TV CA open()
+====================
Name
----
-DVB CA open()
+Digital TV CA open()
Synopsis
@@ -23,25 +23,25 @@ Arguments
---------
``name``
- Name of specific DVB CA device.
+ Name of specific Digital TV CA device.
``flags``
A bit-wise OR of the following flags:
+.. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
+
.. flat-table::
:header-rows: 0
:stub-columns: 0
+ :widths: 1 16
- -
- - O_RDONLY
+ - - ``O_RDONLY``
- read-only access
- -
- - O_RDWR
+ - - ``O_RDWR``
- read/write access
- -
- - O_NONBLOCK
+ - - ``O_NONBLOCK``
- open in non-blocking mode
(blocking mode is the default)
@@ -49,50 +49,29 @@ Arguments
Description
-----------
-This system call opens a named ca device (e.g. /dev/ost/ca) for
-subsequent use.
+This system call opens a named ca device (e.g. ``/dev/dvb/adapter?/ca?``)
+for subsequent use.
-When an open() call has succeeded, the device will be ready for use. The
+When an ``open()`` call has succeeded, the device will be ready for use. The
significance of blocking or non-blocking mode is described in the
documentation for functions where there is a difference. It does not
-affect the semantics of the open() call itself. A device opened in
+affect the semantics of the ``open()`` call itself. A device opened in
blocking mode can later be put into non-blocking mode (and vice versa)
-using the F_SETFL command of the fcntl system call. This is a standard
-system call, documented in the Linux manual page for fcntl. Only one
-user can open the CA Device in O_RDWR mode. All other attempts to open
-the device in this mode will fail, and an error code will be returned.
+using the ``F_SETFL`` command of the ``fcntl`` system call. This is a
+standard system call, documented in the Linux manual page for fcntl.
+Only one user can open the CA Device in ``O_RDWR`` mode. All other
+attempts to open the device in this mode will fail, and an error code
+will be returned.
Return Value
------------
-.. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
-
-.. flat-table::
- :header-rows: 0
- :stub-columns: 0
-
-
- - .. row 1
-
- - ``ENODEV``
-
- - Device driver not loaded/available.
-
- - .. row 2
-
- - ``EINTERNAL``
-
- - Internal error.
-
- - .. row 3
-
- - ``EBUSY``
-
- - Device or resource busy.
- - .. row 4
+On success 0 is returned.
- - ``EINVAL``
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
- - Invalid argument.
+Generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/ca-get-cap.rst b/Documentation/media/uapi/dvb/ca-get-cap.rst
index fbf7e359cb8a..d2d5c1355396 100644
--- a/Documentation/media/uapi/dvb/ca-get-cap.rst
+++ b/Documentation/media/uapi/dvb/ca-get-cap.rst
@@ -28,43 +28,19 @@ Arguments
``caps``
Pointer to struct :c:type:`ca_caps`.
-.. c:type:: struct ca_caps
-
-.. flat-table:: struct ca_caps
- :header-rows: 1
- :stub-columns: 0
-
- -
- - type
- - name
- - description
- -
- - unsigned int
- - slot_num
- - total number of CA card and module slots
- -
- - unsigned int
- - slot_type
- - bitmask with all supported slot types
- -
- - unsigned int
- - descr_num
- - total number of descrambler slots (keys)
- -
- - unsigned int
- - descr_type
- - bit mask with all supported descr types
-
-
Description
-----------
-.. note:: This ioctl is undocumented. Documentation is welcome.
-
+Queries the Kernel for information about the available CA and descrambler
+slots, and their types.
Return Value
------------
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned and :c:type:`ca_caps` is filled.
+
+On error, -1 is returned and the ``errno`` variable is set
+appropriately.
+
+The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/ca-get-descr-info.rst b/Documentation/media/uapi/dvb/ca-get-descr-info.rst
index 7bf327a3d0e3..e564fbb8d524 100644
--- a/Documentation/media/uapi/dvb/ca-get-descr-info.rst
+++ b/Documentation/media/uapi/dvb/ca-get-descr-info.rst
@@ -27,37 +27,16 @@ Arguments
``desc``
Pointer to struct :c:type:`ca_descr_info`.
-.. c:type:: struct ca_descr_info
-
-.. flat-table:: struct ca_descr_info
- :header-rows: 1
- :stub-columns: 0
-
- -
- - type
- - name
- - description
-
- -
- - unsigned int
- - num
- - number of available descramblers (keys)
- -
- - unsigned int
- - type
- - type of supported scrambling system. Valid values are:
- ``CA_ECD``, ``CA_NDS`` and ``CA_DSS``.
-
-
Description
-----------
-.. note:: This ioctl is undocumented. Documentation is welcome.
-
+Returns information about all descrambler slots.
Return Value
------------
-On success 0 is returned, on error -1 and the ``errno`` variable is set
+On success 0 is returned, and :c:type:`ca_descr_info` is filled.
+
+On error -1 is returned, and the ``errno`` variable is set
appropriately. The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/ca-get-msg.rst b/Documentation/media/uapi/dvb/ca-get-msg.rst
index 121588da3ef1..ceeda623ce93 100644
--- a/Documentation/media/uapi/dvb/ca-get-msg.rst
+++ b/Documentation/media/uapi/dvb/ca-get-msg.rst
@@ -28,47 +28,25 @@ Arguments
``msg``
Pointer to struct :c:type:`ca_msg`.
+Description
+-----------
-.. c:type:: struct ca_msg
-
-.. flat-table:: struct ca_msg
- :header-rows: 1
- :stub-columns: 0
-
- -
- - type
- - name
- - description
- -
- - unsigned int
- - index
- -
-
- -
- - unsigned int
- - type
- -
+Receives a message via a CI CA module.
- -
- - unsigned int
- - length
- -
+.. note::
- -
- - unsigned char
- - msg[256]
- -
+ Please notice that, on most drivers, this is done by reading from
+ the /dev/adapter?/ca? device node.
-Description
------------
+Return Value
+------------
-.. note:: This ioctl is undocumented. Documentation is welcome.
+On success 0 is returned.
-Return Value
-------------
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/ca-get-slot-info.rst b/Documentation/media/uapi/dvb/ca-get-slot-info.rst
index 54e5dc78a2dc..1a1d6f0c71b9 100644
--- a/Documentation/media/uapi/dvb/ca-get-slot-info.rst
+++ b/Documentation/media/uapi/dvb/ca-get-slot-info.rst
@@ -26,100 +26,32 @@ Arguments
File descriptor returned by a previous call to :c:func:`open() <cec-open>`.
``info``
- Pointer to struct c:type:`ca_slot_info`.
+ Pointer to struct :c:type:`ca_slot_info`.
-.. _ca_slot_info_type:
+Description
+-----------
-.. flat-table:: ca_slot_info types
- :header-rows: 1
- :stub-columns: 0
+Returns information about a CA slot identified by
+:c:type:`ca_slot_info`.slot_num.
- -
- - type
- - name
- - description
- -
- - CA_CI
- - 1
- - CI high level interface
-
- -
- - CA_CI_LINK
- - 2
- - CI link layer level interface
-
- -
- - CA_CI_PHYS
- - 4
- - CI physical layer level interface
-
- -
- - CA_DESCR
- - 8
- - built-in descrambler
-
- -
- - CA_SC
- - 128
- - simple smart card interface
-
-.. _ca_slot_info_flag:
-
-.. flat-table:: ca_slot_info flags
- :header-rows: 1
- :stub-columns: 0
- -
- - type
- - name
- - description
+Return Value
+------------
- -
- - CA_CI_MODULE_PRESENT
- - 1
- - module (or card) inserted
+On success 0 is returned, and :c:type:`ca_slot_info` is filled.
- -
- - CA_CI_MODULE_READY
- - 2
- -
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
-.. c:type:: ca_slot_info
+.. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
-.. flat-table:: struct ca_slot_info
- :header-rows: 1
+.. flat-table::
+ :header-rows: 0
:stub-columns: 0
+ :widths: 1 16
- -
- - type
- - name
- - description
-
- -
- - int
- - num
- - slot number
-
- -
- - int
- - type
- - CA interface this slot supports, as defined at :ref:`ca_slot_info_type`.
-
- -
- - unsigned int
- - flags
- - flags as defined at :ref:`ca_slot_info_flag`.
-
-
-Description
------------
-
-.. note:: This ioctl is undocumented. Documentation is welcome.
-
-
-Return Value
-------------
+ - - ``ENODEV``
+ - the slot is not available.
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/ca-reset.rst b/Documentation/media/uapi/dvb/ca-reset.rst
index 477313121a65..29788325f90e 100644
--- a/Documentation/media/uapi/dvb/ca-reset.rst
+++ b/Documentation/media/uapi/dvb/ca-reset.rst
@@ -28,12 +28,17 @@ Arguments
Description
-----------
-.. note:: This ioctl is undocumented. Documentation is welcome.
+Puts the Conditional Access hardware on its initial state. It should
+be called before start using the CA hardware.
Return Value
------------
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/ca-send-msg.rst b/Documentation/media/uapi/dvb/ca-send-msg.rst
index 532ef5f9d6ac..9e91287b7bbc 100644
--- a/Documentation/media/uapi/dvb/ca-send-msg.rst
+++ b/Documentation/media/uapi/dvb/ca-send-msg.rst
@@ -32,12 +32,20 @@ Arguments
Description
-----------
-.. note:: This ioctl is undocumented. Documentation is welcome.
+Sends a message via a CI CA module.
+.. note::
+
+ Please notice that, on most drivers, this is done by writing
+ to the /dev/adapter?/ca? device node.
Return Value
------------
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/ca-set-descr.rst b/Documentation/media/uapi/dvb/ca-set-descr.rst
index 70f7b3cf12ad..a6c47205ffd8 100644
--- a/Documentation/media/uapi/dvb/ca-set-descr.rst
+++ b/Documentation/media/uapi/dvb/ca-set-descr.rst
@@ -28,16 +28,19 @@ Arguments
``msg``
Pointer to struct :c:type:`ca_descr`.
-
Description
-----------
-.. note:: This ioctl is undocumented. Documentation is welcome.
-
+CA_SET_DESCR is used for feeding descrambler CA slots with descrambling
+keys (refered as control words).
Return Value
------------
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/ca-set-pid.rst b/Documentation/media/uapi/dvb/ca-set-pid.rst
deleted file mode 100644
index 891c1c72ef24..000000000000
--- a/Documentation/media/uapi/dvb/ca-set-pid.rst
+++ /dev/null
@@ -1,60 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-.. _CA_SET_PID:
-
-==========
-CA_SET_PID
-==========
-
-Name
-----
-
-CA_SET_PID
-
-
-Synopsis
---------
-
-.. c:function:: int ioctl(fd, CA_SET_PID, struct ca_pid *pid)
- :name: CA_SET_PID
-
-
-Arguments
----------
-
-``fd``
- File descriptor returned by a previous call to :c:func:`open() <dvb-ca-open>`.
-
-``pid``
- Pointer to struct :c:type:`ca_pid`.
-
-.. c:type:: ca_pid
-
-.. flat-table:: struct ca_pid
- :header-rows: 1
- :stub-columns: 0
-
- -
- - unsigned int
- - pid
- - Program ID
-
- -
- - int
- - index
- - PID index. Use -1 to disable.
-
-
-
-Description
------------
-
-.. note:: This ioctl is undocumented. Documentation is welcome.
-
-
-Return Value
-------------
-
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
-:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/ca.rst b/Documentation/media/uapi/dvb/ca.rst
index 14b14abda1ae..deac72d89e93 100644
--- a/Documentation/media/uapi/dvb/ca.rst
+++ b/Documentation/media/uapi/dvb/ca.rst
@@ -2,14 +2,20 @@
.. _dvb_ca:
-#############
-DVB CA Device
-#############
-The DVB CA device controls the conditional access hardware. It can be
-accessed through ``/dev/dvb/adapter?/ca?``. Data types and and ioctl
+####################
+Digital TV CA Device
+####################
+
+The Digital TV CA device controls the conditional access hardware. It
+can be accessed through ``/dev/dvb/adapter?/ca?``. Data types and and ioctl
definitions can be accessed by including ``linux/dvb/ca.h`` in your
application.
+.. note::
+
+ There are three ioctls at this API that aren't documented:
+ :ref:`CA_GET_MSG`, :ref:`CA_SEND_MSG` and :ref:`CA_SET_DESCR`.
+ Documentation for them are welcome.
.. toctree::
:maxdepth: 1
diff --git a/Documentation/media/uapi/dvb/ca_data_types.rst b/Documentation/media/uapi/dvb/ca_data_types.rst
index d9e27c77426c..ac7cbd76ddd5 100644
--- a/Documentation/media/uapi/dvb/ca_data_types.rst
+++ b/Documentation/media/uapi/dvb/ca_data_types.rst
@@ -6,105 +6,4 @@
CA Data Types
*************
-
-.. c:type:: ca_slot_info
-
-ca_slot_info_t
-==============
-
-
-.. code-block:: c
-
- typedef struct ca_slot_info {
- int num; /* slot number */
-
- int type; /* CA interface this slot supports */
- #define CA_CI 1 /* CI high level interface */
- #define CA_CI_LINK 2 /* CI link layer level interface */
- #define CA_CI_PHYS 4 /* CI physical layer level interface */
- #define CA_DESCR 8 /* built-in descrambler */
- #define CA_SC 128 /* simple smart card interface */
-
- unsigned int flags;
- #define CA_CI_MODULE_PRESENT 1 /* module (or card) inserted */
- #define CA_CI_MODULE_READY 2
- } ca_slot_info_t;
-
-
-.. c:type:: ca_descr_info
-
-ca_descr_info_t
-===============
-
-
-.. code-block:: c
-
- typedef struct ca_descr_info {
- unsigned int num; /* number of available descramblers (keys) */
- unsigned int type; /* type of supported scrambling system */
- #define CA_ECD 1
- #define CA_NDS 2
- #define CA_DSS 4
- } ca_descr_info_t;
-
-
-.. c:type:: ca_caps
-
-ca_caps_t
-=========
-
-
-.. code-block:: c
-
- typedef struct ca_caps {
- unsigned int slot_num; /* total number of CA card and module slots */
- unsigned int slot_type; /* OR of all supported types */
- unsigned int descr_num; /* total number of descrambler slots (keys) */
- unsigned int descr_type;/* OR of all supported types */
- } ca_cap_t;
-
-
-.. c:type:: ca_msg
-
-ca_msg_t
-========
-
-
-.. code-block:: c
-
- /* a message to/from a CI-CAM */
- typedef struct ca_msg {
- unsigned int index;
- unsigned int type;
- unsigned int length;
- unsigned char msg[256];
- } ca_msg_t;
-
-
-.. c:type:: ca_descr
-
-ca_descr_t
-==========
-
-
-.. code-block:: c
-
- typedef struct ca_descr {
- unsigned int index;
- unsigned int parity;
- unsigned char cw[8];
- } ca_descr_t;
-
-
-.. c:type:: ca_pid
-
-ca-pid
-======
-
-
-.. code-block:: c
-
- typedef struct ca_pid {
- unsigned int pid;
- int index; /* -1 == disable*/
- } ca_pid_t;
+.. kernel-doc:: include/uapi/linux/dvb/ca.h
diff --git a/Documentation/media/uapi/dvb/ca_function_calls.rst b/Documentation/media/uapi/dvb/ca_function_calls.rst
index c085a0ebbc05..87d697851e82 100644
--- a/Documentation/media/uapi/dvb/ca_function_calls.rst
+++ b/Documentation/media/uapi/dvb/ca_function_calls.rst
@@ -18,4 +18,3 @@ CA Function Calls
ca-get-msg
ca-send-msg
ca-set-descr
- ca-set-pid
diff --git a/Documentation/media/uapi/dvb/ca_h.rst b/Documentation/media/uapi/dvb/ca_h.rst
deleted file mode 100644
index f513592ef529..000000000000
--- a/Documentation/media/uapi/dvb/ca_h.rst
+++ /dev/null
@@ -1,9 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-.. _ca_h:
-
-**********************************
-DVB Conditional Access Header File
-**********************************
-
-.. kernel-include:: $BUILDDIR/ca.h.rst
diff --git a/Documentation/media/uapi/dvb/demux.rst b/Documentation/media/uapi/dvb/demux.rst
index b12b5a2dac94..45c3d6405c46 100644
--- a/Documentation/media/uapi/dvb/demux.rst
+++ b/Documentation/media/uapi/dvb/demux.rst
@@ -2,10 +2,15 @@
.. _dvb_demux:
-################
-DVB Demux Device
-################
-The DVB demux device controls the filters of the DVB hardware/software.
+#######################
+Digital TV Demux Device
+#######################
+
+The Digital TV demux device controls the MPEG-TS filters for the
+digital TV. If the driver and hardware supports, those filters are
+implemented at the hardware. Otherwise, the Kernel provides a software
+emulation.
+
It can be accessed through ``/dev/adapter?/demux?``. Data types and and
ioctl definitions can be accessed by including ``linux/dvb/dmx.h`` in
your application.
diff --git a/Documentation/media/uapi/dvb/dmx-add-pid.rst b/Documentation/media/uapi/dvb/dmx-add-pid.rst
index 689cd1fc9142..4d5632dfb43e 100644
--- a/Documentation/media/uapi/dvb/dmx-add-pid.rst
+++ b/Documentation/media/uapi/dvb/dmx-add-pid.rst
@@ -33,13 +33,17 @@ Description
-----------
This ioctl call allows to add multiple PIDs to a transport stream filter
-previously set up with DMX_SET_PES_FILTER and output equal to
-DMX_OUT_TSDEMUX_TAP.
+previously set up with :ref:`DMX_SET_PES_FILTER` and output equal to
+:c:type:`DMX_OUT_TSDEMUX_TAP <dmx_output>`.
Return Value
------------
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/dmx-fclose.rst b/Documentation/media/uapi/dvb/dmx-fclose.rst
index ca93c23cde6d..578e929f4bde 100644
--- a/Documentation/media/uapi/dvb/dmx-fclose.rst
+++ b/Documentation/media/uapi/dvb/dmx-fclose.rst
@@ -2,14 +2,14 @@
.. _dmx_fclose:
-=================
-DVB demux close()
-=================
+========================
+Digital TV demux close()
+========================
Name
----
-DVB demux close()
+Digital TV demux close()
Synopsis
@@ -23,25 +23,23 @@ Arguments
---------
``fd``
- File descriptor returned by a previous call to :c:func:`open() <dvb-ca-open>`.
+ File descriptor returned by a previous call to
+ :c:func:`open() <dvb-dmx-open>`.
Description
-----------
This system call deactivates and deallocates a filter that was
-previously allocated via the open() call.
+previously allocated via the :c:func:`open() <dvb-dmx-open>` call.
Return Value
------------
-.. flat-table::
- :header-rows: 0
- :stub-columns: 0
+On success 0 is returned.
+On error, -1 is returned and the ``errno`` variable is set
+appropriately.
- - .. row 1
-
- - ``EBADF``
-
- - fd is not a valid open file descriptor.
+The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/dmx-fopen.rst b/Documentation/media/uapi/dvb/dmx-fopen.rst
index a697e33c32ea..55628a18ba67 100644
--- a/Documentation/media/uapi/dvb/dmx-fopen.rst
+++ b/Documentation/media/uapi/dvb/dmx-fopen.rst
@@ -2,14 +2,14 @@
.. _dmx_fopen:
-================
-DVB demux open()
-================
+=======================
+Digital TV demux open()
+=======================
Name
----
-DVB demux open()
+Digital TV demux open()
Synopsis
@@ -22,25 +22,28 @@ Arguments
---------
``name``
- Name of specific DVB demux device.
+ Name of specific Digital TV demux device.
``flags``
A bit-wise OR of the following flags:
+.. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
+
.. flat-table::
:header-rows: 0
:stub-columns: 0
+ :widths: 1 16
-
- - O_RDONLY
+ - ``O_RDONLY``
- read-only access
-
- - O_RDWR
+ - ``O_RDWR``
- read/write access
-
- - O_NONBLOCK
+ - ``O_NONBLOCK``
- open in non-blocking mode
(blocking mode is the default)
@@ -48,52 +51,41 @@ Arguments
Description
-----------
-This system call, used with a device name of /dev/dvb/adapter0/demux0,
+This system call, used with a device name of ``/dev/dvb/adapter?/demux?``,
allocates a new filter and returns a handle which can be used for
subsequent control of that filter. This call has to be made for each
filter to be used, i.e. every returned file descriptor is a reference to
-a single filter. /dev/dvb/adapter0/dvr0 is a logical device to be used
+a single filter. ``/dev/dvb/adapter?/dvr?`` is a logical device to be used
for retrieving Transport Streams for digital video recording. When
reading from this device a transport stream containing the packets from
all PES filters set in the corresponding demux device
-(/dev/dvb/adapter0/demux0) having the output set to DMX_OUT_TS_TAP. A
-recorded Transport Stream is replayed by writing to this device.
+(``/dev/dvb/adapter?/demux?``) having the output set to ``DMX_OUT_TS_TAP``.
+A recorded Transport Stream is replayed by writing to this device.
The significance of blocking or non-blocking mode is described in the
documentation for functions where there is a difference. It does not
-affect the semantics of the open() call itself. A device opened in
-blocking mode can later be put into non-blocking mode (and vice versa)
-using the F_SETFL command of the fcntl system call.
+affect the semantics of the ``open()`` call itself. A device opened
+in blocking mode can later be put into non-blocking mode (and vice versa)
+using the ``F_SETFL`` command of the fcntl system call.
Return Value
------------
-.. flat-table::
- :header-rows: 0
- :stub-columns: 0
-
-
- - .. row 1
-
- - ``ENODEV``
-
- - Device driver not loaded/available.
+On success 0 is returned.
- - .. row 2
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
- - ``EINVAL``
+.. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
- - Invalid argument.
-
- - .. row 3
-
- - ``EMFILE``
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 16
+ - - ``EMFILE``
- “Too many open filesâ€, i.e. no more filters available.
- - .. row 4
-
- - ``ENOMEM``
-
- - The driver failed to allocate enough memory.
+The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/dmx-fread.rst b/Documentation/media/uapi/dvb/dmx-fread.rst
index e8c7f4db353f..488bdc4ba178 100644
--- a/Documentation/media/uapi/dvb/dmx-fread.rst
+++ b/Documentation/media/uapi/dvb/dmx-fread.rst
@@ -2,14 +2,14 @@
.. _dmx_fread:
-================
-DVB demux read()
-================
+=======================
+Digital TV demux read()
+=======================
Name
----
-DVB demux read()
+Digital TV demux read()
Synopsis
@@ -33,62 +33,48 @@ Arguments
Description
-----------
-This system call returns filtered data, which might be section or PES
-data. The filtered data is transferred from the driver’s internal
-circular buffer to buf. The maximum amount of data to be transferred is
-implied by count.
+This system call returns filtered data, which might be section or Packetized
+Elementary Stream (PES) data. The filtered data is transferred from
+the driver’s internal circular buffer to ``buf``. The maximum amount of data
+to be transferred is implied by count.
+
+.. note::
+
+ if a section filter created with
+ :c:type:`DMX_CHECK_CRC <dmx_sct_filter_params>` flag set,
+ data that fails on CRC check will be silently ignored.
+
Return Value
------------
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
.. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
.. flat-table::
:header-rows: 0
:stub-columns: 0
+ :widths: 1 16
+ - - ``EWOULDBLOCK``
+ - No data to return and ``O_NONBLOCK`` was specified.
- - .. row 1
-
- - ``EWOULDBLOCK``
-
- - No data to return and O_NONBLOCK was specified.
-
- - .. row 2
-
- - ``EBADF``
-
- - fd is not a valid open file descriptor.
-
- - .. row 3
-
- - ``ECRC``
-
- - Last section had a CRC error - no data returned. The buffer is
- flushed.
-
- - .. row 4
-
- - ``EOVERFLOW``
-
- -
-
- - .. row 5
-
- -
+ - - ``EOVERFLOW``
- The filtered data was not read from the buffer in due time,
resulting in non-read data being lost. The buffer is flushed.
- - .. row 6
-
- - ``ETIMEDOUT``
-
- - The section was not loaded within the stated timeout period. See
- ioctl DMX_SET_FILTER for how to set a timeout.
+ - - ``ETIMEDOUT``
+ - The section was not loaded within the stated timeout period.
+ See ioctl :ref:`DMX_SET_FILTER` for how to set a timeout.
- - .. row 7
+ - - ``EFAULT``
+ - The driver failed to write to the callers buffer due to an
+ invalid \*buf pointer.
- - ``EFAULT``
- - The driver failed to write to the callers buffer due to an invalid
- \*buf pointer.
+The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/dmx-fwrite.rst b/Documentation/media/uapi/dvb/dmx-fwrite.rst
index 8a90dfe28307..519e5733e53b 100644
--- a/Documentation/media/uapi/dvb/dmx-fwrite.rst
+++ b/Documentation/media/uapi/dvb/dmx-fwrite.rst
@@ -2,14 +2,14 @@
.. _dmx_fwrite:
-=================
-DVB demux write()
-=================
+========================
+Digital TV demux write()
+========================
Name
----
-DVB demux write()
+Digital TV demux write()
Synopsis
@@ -34,42 +34,39 @@ Description
-----------
This system call is only provided by the logical device
-/dev/dvb/adapter0/dvr0, associated with the physical demux device that
+``/dev/dvb/adapter?/dvr?``, associated with the physical demux device that
provides the actual DVR functionality. It is used for replay of a
digitally recorded Transport Stream. Matching filters have to be defined
-in the corresponding physical demux device, /dev/dvb/adapter0/demux0.
+in the corresponding physical demux device, ``/dev/dvb/adapter?/demux?``.
The amount of data to be transferred is implied by count.
Return Value
------------
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
.. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
.. flat-table::
:header-rows: 0
:stub-columns: 0
+ :widths: 1 16
- - .. row 1
-
- - ``EWOULDBLOCK``
-
- - No data was written. This might happen if O_NONBLOCK was
+ - - ``EWOULDBLOCK``
+ - No data was written. This might happen if ``O_NONBLOCK`` was
specified and there is no more buffer space available (if
- O_NONBLOCK is not specified the function will block until buffer
+ ``O_NONBLOCK`` is not specified the function will block until buffer
space is available).
- - .. row 2
-
- - ``EBUSY``
-
+ - - ``EBUSY``
- This error code indicates that there are conflicting requests. The
corresponding demux device is setup to receive data from the
front- end. Make sure that these filters are stopped and that the
- filters with input set to DMX_IN_DVR are started.
-
- - .. row 3
-
- - ``EBADF``
+ filters with input set to ``DMX_IN_DVR`` are started.
- - fd is not a valid open file descriptor.
+The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/dmx-get-caps.rst b/Documentation/media/uapi/dvb/dmx-get-caps.rst
deleted file mode 100644
index 145fb520d779..000000000000
--- a/Documentation/media/uapi/dvb/dmx-get-caps.rst
+++ /dev/null
@@ -1,41 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-.. _DMX_GET_CAPS:
-
-============
-DMX_GET_CAPS
-============
-
-Name
-----
-
-DMX_GET_CAPS
-
-
-Synopsis
---------
-
-.. c:function:: int ioctl(fd, DMX_GET_CAPS, struct dmx_caps *caps)
- :name: DMX_GET_CAPS
-
-Arguments
----------
-
-``fd``
- File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
-
-``caps``
- Pointer to struct :c:type:`dmx_caps`
-
-
-Description
------------
-
-.. note:: This ioctl is undocumented. Documentation is welcome.
-
-Return Value
-------------
-
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
-:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/dmx-get-event.rst b/Documentation/media/uapi/dvb/dmx-get-event.rst
deleted file mode 100644
index 8be626c29158..000000000000
--- a/Documentation/media/uapi/dvb/dmx-get-event.rst
+++ /dev/null
@@ -1,60 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-.. _DMX_GET_EVENT:
-
-=============
-DMX_GET_EVENT
-=============
-
-Name
-----
-
-DMX_GET_EVENT
-
-
-Synopsis
---------
-
-.. c:function:: int ioctl( int fd, DMX_GET_EVENT, struct dmx_event *ev)
- :name: DMX_GET_EVENT
-
-
-Arguments
----------
-
-``fd``
- File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
-
-``ev``
- Pointer to the location where the event is to be stored.
-
-
-Description
------------
-
-This ioctl call returns an event if available. If an event is not
-available, the behavior depends on whether the device is in blocking or
-non-blocking mode. In the latter case, the call fails immediately with
-errno set to ``EWOULDBLOCK``. In the former case, the call blocks until an
-event becomes available.
-
-
-Return Value
-------------
-
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
-:ref:`Generic Error Codes <gen-errors>` chapter.
-
-
-
-.. flat-table::
- :header-rows: 0
- :stub-columns: 0
-
-
- - .. row 1
-
- - ``EWOULDBLOCK``
-
- - There is no event pending, and the device is in non-blocking mode.
diff --git a/Documentation/media/uapi/dvb/dmx-get-pes-pids.rst b/Documentation/media/uapi/dvb/dmx-get-pes-pids.rst
index b31634a1cca4..fbdbc12869d1 100644
--- a/Documentation/media/uapi/dvb/dmx-get-pes-pids.rst
+++ b/Documentation/media/uapi/dvb/dmx-get-pes-pids.rst
@@ -25,18 +25,40 @@ Arguments
File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
``pids``
- Undocumented.
+ Array used to store 5 Program IDs.
Description
-----------
-.. note:: This ioctl is undocumented. Documentation is welcome.
+This ioctl allows to query a DVB device to return the first PID used
+by audio, video, textext, subtitle and PCR programs on a given service.
+They're stored as:
+
+======================= ======== =======================================
+PID element position content
+======================= ======== =======================================
+pids[DMX_PES_AUDIO] 0 first audio PID
+pids[DMX_PES_VIDEO] 1 first video PID
+pids[DMX_PES_TELETEXT] 2 first teletext PID
+pids[DMX_PES_SUBTITLE] 3 first subtitle PID
+pids[DMX_PES_PCR] 4 first Program Clock Reference PID
+======================= ======== =======================================
+
+
+.. note::
+
+ A value equal to 0xffff means that the PID was not filled by the
+ Kernel.
Return Value
------------
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/dmx-get-stc.rst b/Documentation/media/uapi/dvb/dmx-get-stc.rst
index 9fc501e8128a..604031f7904b 100644
--- a/Documentation/media/uapi/dvb/dmx-get-stc.rst
+++ b/Documentation/media/uapi/dvb/dmx-get-stc.rst
@@ -25,34 +25,42 @@ Arguments
File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
``stc``
- Pointer to the location where the stc is to be stored.
+ Pointer to :c:type:`dmx_stc` where the stc data is to be stored.
Description
-----------
This ioctl call returns the current value of the system time counter
-(which is driven by a PES filter of type DMX_PES_PCR). Some hardware
-supports more than one STC, so you must specify which one by setting the
-num field of stc before the ioctl (range 0...n). The result is returned
-in form of a ratio with a 64 bit numerator and a 32 bit denominator, so
-the real 90kHz STC value is stc->stc / stc->base .
+(which is driven by a PES filter of type :c:type:`DMX_PES_PCR <dmx_ts_pes>`).
+Some hardware supports more than one STC, so you must specify which one by
+setting the :c:type:`num <dmx_stc>` field of stc before the ioctl (range 0...n).
+The result is returned in form of a ratio with a 64 bit numerator
+and a 32 bit denominator, so the real 90kHz STC value is
+``stc->stc / stc->base``.
Return Value
------------
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
-:ref:`Generic Error Codes <gen-errors>` chapter.
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+.. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
.. flat-table::
:header-rows: 0
:stub-columns: 0
-
+ :widths: 1 16
- .. row 1
- ``EINVAL``
- Invalid stc number.
+
+
+The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/dmx-remove-pid.rst b/Documentation/media/uapi/dvb/dmx-remove-pid.rst
index e411495c619c..456cc2ded2c0 100644
--- a/Documentation/media/uapi/dvb/dmx-remove-pid.rst
+++ b/Documentation/media/uapi/dvb/dmx-remove-pid.rst
@@ -34,13 +34,17 @@ Description
This ioctl call allows to remove a PID when multiple PIDs are set on a
transport stream filter, e. g. a filter previously set up with output
-equal to DMX_OUT_TSDEMUX_TAP, created via either
-DMX_SET_PES_FILTER or DMX_ADD_PID.
+equal to :c:type:`DMX_OUT_TSDEMUX_TAP <dmx_output>`, created via either
+:ref:`DMX_SET_PES_FILTER` or :ref:`DMX_ADD_PID`.
Return Value
------------
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/dmx-set-buffer-size.rst b/Documentation/media/uapi/dvb/dmx-set-buffer-size.rst
index f2f7379f29ed..74fd076a9b90 100644
--- a/Documentation/media/uapi/dvb/dmx-set-buffer-size.rst
+++ b/Documentation/media/uapi/dvb/dmx-set-buffer-size.rst
@@ -33,13 +33,18 @@ Description
This ioctl call is used to set the size of the circular buffer used for
filtered data. The default size is two maximum sized sections, i.e. if
-this function is not called a buffer size of 2 \* 4096 bytes will be
+this function is not called a buffer size of ``2 * 4096`` bytes will be
used.
Return Value
------------
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/dmx-set-filter.rst b/Documentation/media/uapi/dvb/dmx-set-filter.rst
index 1d50c803d69a..88594b8d3846 100644
--- a/Documentation/media/uapi/dvb/dmx-set-filter.rst
+++ b/Documentation/media/uapi/dvb/dmx-set-filter.rst
@@ -40,13 +40,18 @@ state whether a section should be CRC-checked, whether the filter should
be a â€one-shot†filter, i.e. if the filtering operation should be
stopped after the first section is received, and whether the filtering
operation should be started immediately (without waiting for a
-DMX_START ioctl call). If a filter was previously set-up, this filter
-will be canceled, and the receive buffer will be flushed.
+:ref:`DMX_START` ioctl call). If a filter was previously set-up, this
+filter will be canceled, and the receive buffer will be flushed.
Return Value
------------
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/dmx-set-pes-filter.rst b/Documentation/media/uapi/dvb/dmx-set-pes-filter.rst
index 145451d04f7d..d70e7bf96a41 100644
--- a/Documentation/media/uapi/dvb/dmx-set-pes-filter.rst
+++ b/Documentation/media/uapi/dvb/dmx-set-pes-filter.rst
@@ -42,15 +42,17 @@ capability is supported.
Return Value
------------
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
-:ref:`Generic Error Codes <gen-errors>` chapter.
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
.. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
.. flat-table::
:header-rows: 0
:stub-columns: 0
+ :widths: 1 16
- .. row 1
@@ -61,3 +63,7 @@ appropriately. The generic error codes are described at the
There are active filters filtering data from another input source.
Make sure that these filters are stopped before starting this
filter.
+
+
+The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/dmx-set-source.rst b/Documentation/media/uapi/dvb/dmx-set-source.rst
deleted file mode 100644
index ac7f77b25e06..000000000000
--- a/Documentation/media/uapi/dvb/dmx-set-source.rst
+++ /dev/null
@@ -1,44 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-.. _DMX_SET_SOURCE:
-
-==============
-DMX_SET_SOURCE
-==============
-
-Name
-----
-
-DMX_SET_SOURCE
-
-
-Synopsis
---------
-
-.. c:function:: int ioctl(fd, DMX_SET_SOURCE, struct dmx_source *src)
- :name: DMX_SET_SOURCE
-
-
-Arguments
----------
-
-
-``fd``
- File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
-
-``src``
- Undocumented.
-
-
-Description
------------
-
-.. note:: This ioctl is undocumented. Documentation is welcome.
-
-
-Return Value
-------------
-
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
-:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/dmx-start.rst b/Documentation/media/uapi/dvb/dmx-start.rst
index 641f3e017fb1..36700e775296 100644
--- a/Documentation/media/uapi/dvb/dmx-start.rst
+++ b/Documentation/media/uapi/dvb/dmx-start.rst
@@ -29,15 +29,16 @@ Description
-----------
This ioctl call is used to start the actual filtering operation defined
-via the ioctl calls DMX_SET_FILTER or DMX_SET_PES_FILTER.
+via the ioctl calls :ref:`DMX_SET_FILTER` or :ref:`DMX_SET_PES_FILTER`.
Return Value
------------
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
-:ref:`Generic Error Codes <gen-errors>` chapter.
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
.. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
@@ -51,7 +52,7 @@ appropriately. The generic error codes are described at the
- ``EINVAL``
- Invalid argument, i.e. no filtering parameters provided via the
- DMX_SET_FILTER or DMX_SET_PES_FILTER functions.
+ :ref:`DMX_SET_FILTER` or :ref:`DMX_SET_PES_FILTER` ioctls.
- .. row 2
@@ -61,3 +62,7 @@ appropriately. The generic error codes are described at the
There are active filters filtering data from another input source.
Make sure that these filters are stopped before starting this
filter.
+
+
+The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/dmx-stop.rst b/Documentation/media/uapi/dvb/dmx-stop.rst
index 569a3df44923..6d9c927bcd5f 100644
--- a/Documentation/media/uapi/dvb/dmx-stop.rst
+++ b/Documentation/media/uapi/dvb/dmx-stop.rst
@@ -29,13 +29,17 @@ Description
-----------
This ioctl call is used to stop the actual filtering operation defined
-via the ioctl calls DMX_SET_FILTER or DMX_SET_PES_FILTER and
-started via the DMX_START command.
+via the ioctl calls :ref:`DMX_SET_FILTER` or :ref:`DMX_SET_PES_FILTER` and
+started via the :ref:`DMX_START` command.
Return Value
------------
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/dmx_fcalls.rst b/Documentation/media/uapi/dvb/dmx_fcalls.rst
index 77a1554d9834..a17289143220 100644
--- a/Documentation/media/uapi/dvb/dmx_fcalls.rst
+++ b/Documentation/media/uapi/dvb/dmx_fcalls.rst
@@ -18,10 +18,7 @@ Demux Function Calls
dmx-set-filter
dmx-set-pes-filter
dmx-set-buffer-size
- dmx-get-event
dmx-get-stc
dmx-get-pes-pids
- dmx-get-caps
- dmx-set-source
dmx-add-pid
dmx-remove-pid
diff --git a/Documentation/media/uapi/dvb/dmx_h.rst b/Documentation/media/uapi/dvb/dmx_h.rst
deleted file mode 100644
index 4fd1704a0833..000000000000
--- a/Documentation/media/uapi/dvb/dmx_h.rst
+++ /dev/null
@@ -1,9 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-.. _dmx_h:
-
-*********************
-DVB Demux Header File
-*********************
-
-.. kernel-include:: $BUILDDIR/dmx.h.rst
diff --git a/Documentation/media/uapi/dvb/dmx_types.rst b/Documentation/media/uapi/dvb/dmx_types.rst
index 80dd659860d7..2a023a4f516c 100644
--- a/Documentation/media/uapi/dvb/dmx_types.rst
+++ b/Documentation/media/uapi/dvb/dmx_types.rst
@@ -6,227 +6,4 @@
Demux Data Types
****************
-Output for the demux
-====================
-
-.. c:type:: dmx_output
-
-.. tabularcolumns:: |p{5.0cm}|p{12.5cm}|
-
-.. flat-table:: enum dmx_output
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _DMX-OUT-DECODER:
-
- DMX_OUT_DECODER
-
- - Streaming directly to decoder.
-
- - .. row 3
-
- - .. _DMX-OUT-TAP:
-
- DMX_OUT_TAP
-
- - Output going to a memory buffer (to be retrieved via the read
- command). Delivers the stream output to the demux device on which
- the ioctl is called.
-
- - .. row 4
-
- - .. _DMX-OUT-TS-TAP:
-
- DMX_OUT_TS_TAP
-
- - Output multiplexed into a new TS (to be retrieved by reading from
- the logical DVR device). Routes output to the logical DVR device
- ``/dev/dvb/adapter?/dvr?``, which delivers a TS multiplexed from
- all filters for which ``DMX_OUT_TS_TAP`` was specified.
-
- - .. row 5
-
- - .. _DMX-OUT-TSDEMUX-TAP:
-
- DMX_OUT_TSDEMUX_TAP
-
- - Like :ref:`DMX_OUT_TS_TAP <DMX-OUT-TS-TAP>` but retrieved
- from the DMX device.
-
-
-dmx_input_t
-===========
-
-.. c:type:: dmx_input
-
-.. code-block:: c
-
- typedef enum
- {
- DMX_IN_FRONTEND, /* Input from a front-end device. */
- DMX_IN_DVR /* Input from the logical DVR device. */
- } dmx_input_t;
-
-
-dmx_pes_type_t
-==============
-
-.. c:type:: dmx_pes_type
-
-
-.. code-block:: c
-
- typedef enum
- {
- DMX_PES_AUDIO0,
- DMX_PES_VIDEO0,
- DMX_PES_TELETEXT0,
- DMX_PES_SUBTITLE0,
- DMX_PES_PCR0,
-
- DMX_PES_AUDIO1,
- DMX_PES_VIDEO1,
- DMX_PES_TELETEXT1,
- DMX_PES_SUBTITLE1,
- DMX_PES_PCR1,
-
- DMX_PES_AUDIO2,
- DMX_PES_VIDEO2,
- DMX_PES_TELETEXT2,
- DMX_PES_SUBTITLE2,
- DMX_PES_PCR2,
-
- DMX_PES_AUDIO3,
- DMX_PES_VIDEO3,
- DMX_PES_TELETEXT3,
- DMX_PES_SUBTITLE3,
- DMX_PES_PCR3,
-
- DMX_PES_OTHER
- } dmx_pes_type_t;
-
-
-struct dmx_filter
-=================
-
-.. c:type:: dmx_filter
-
-.. code-block:: c
-
- typedef struct dmx_filter
- {
- __u8 filter[DMX_FILTER_SIZE];
- __u8 mask[DMX_FILTER_SIZE];
- __u8 mode[DMX_FILTER_SIZE];
- } dmx_filter_t;
-
-
-.. c:type:: dmx_sct_filter_params
-
-struct dmx_sct_filter_params
-============================
-
-
-.. code-block:: c
-
- struct dmx_sct_filter_params
- {
- __u16 pid;
- dmx_filter_t filter;
- __u32 timeout;
- __u32 flags;
- #define DMX_CHECK_CRC 1
- #define DMX_ONESHOT 2
- #define DMX_IMMEDIATE_START 4
- #define DMX_KERNEL_CLIENT 0x8000
- };
-
-
-struct dmx_pes_filter_params
-============================
-
-.. c:type:: dmx_pes_filter_params
-
-.. code-block:: c
-
- struct dmx_pes_filter_params
- {
- __u16 pid;
- dmx_input_t input;
- dmx_output_t output;
- dmx_pes_type_t pes_type;
- __u32 flags;
- };
-
-
-struct dmx_event
-================
-
-.. c:type:: dmx_event
-
-.. code-block:: c
-
- struct dmx_event
- {
- dmx_event_t event;
- time_t timeStamp;
- union
- {
- dmx_scrambling_status_t scrambling;
- } u;
- };
-
-
-struct dmx_stc
-==============
-
-.. c:type:: dmx_stc
-
-.. code-block:: c
-
- struct dmx_stc {
- unsigned int num; /* input : which STC? 0..N */
- unsigned int base; /* output: divisor for stc to get 90 kHz clock */
- __u64 stc; /* output: stc in 'base'*90 kHz units */
- };
-
-
-struct dmx_caps
-===============
-
-.. c:type:: dmx_caps
-
-.. code-block:: c
-
- typedef struct dmx_caps {
- __u32 caps;
- int num_decoders;
- } dmx_caps_t;
-
-
-enum dmx_source
-===============
-
-.. c:type:: dmx_source
-
-.. code-block:: c
-
- typedef enum dmx_source {
- DMX_SOURCE_FRONT0 = 0,
- DMX_SOURCE_FRONT1,
- DMX_SOURCE_FRONT2,
- DMX_SOURCE_FRONT3,
- DMX_SOURCE_DVR0 = 16,
- DMX_SOURCE_DVR1,
- DMX_SOURCE_DVR2,
- DMX_SOURCE_DVR3
- } dmx_source_t;
+.. kernel-doc:: include/uapi/linux/dvb/dmx.h
diff --git a/Documentation/media/uapi/dvb/dtv-fe-stats.rst b/Documentation/media/uapi/dvb/dtv-fe-stats.rst
deleted file mode 100644
index e8a02a1f138d..000000000000
--- a/Documentation/media/uapi/dvb/dtv-fe-stats.rst
+++ /dev/null
@@ -1,17 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-.. c:type:: dtv_fe_stats
-
-*******************
-struct dtv_fe_stats
-*******************
-
-
-.. code-block:: c
-
- #define MAX_DTV_STATS 4
-
- struct dtv_fe_stats {
- __u8 len;
- struct dtv_stats stat[MAX_DTV_STATS];
- } __packed;
diff --git a/Documentation/media/uapi/dvb/dtv-properties.rst b/Documentation/media/uapi/dvb/dtv-properties.rst
deleted file mode 100644
index 48c4e834ad11..000000000000
--- a/Documentation/media/uapi/dvb/dtv-properties.rst
+++ /dev/null
@@ -1,15 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-.. c:type:: dtv_properties
-
-*********************
-struct dtv_properties
-*********************
-
-
-.. code-block:: c
-
- struct dtv_properties {
- __u32 num;
- struct dtv_property *props;
- };
diff --git a/Documentation/media/uapi/dvb/dtv-property.rst b/Documentation/media/uapi/dvb/dtv-property.rst
deleted file mode 100644
index 3ddc3474b00e..000000000000
--- a/Documentation/media/uapi/dvb/dtv-property.rst
+++ /dev/null
@@ -1,31 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-.. c:type:: dtv_property
-
-*******************
-struct dtv_property
-*******************
-
-
-.. code-block:: c
-
- /* Reserved fields should be set to 0 */
-
- struct dtv_property {
- __u32 cmd;
- __u32 reserved[3];
- union {
- __u32 data;
- struct dtv_fe_stats st;
- struct {
- __u8 data[32];
- __u32 len;
- __u32 reserved1[3];
- void *reserved2;
- } buffer;
- } u;
- int result;
- } __attribute__ ((packed));
-
- /* num of properties cannot exceed DTV_IOCTL_MAX_MSGS per ioctl */
- #define DTV_IOCTL_MAX_MSGS 64
diff --git a/Documentation/media/uapi/dvb/dtv-stats.rst b/Documentation/media/uapi/dvb/dtv-stats.rst
deleted file mode 100644
index 35239e72bf74..000000000000
--- a/Documentation/media/uapi/dvb/dtv-stats.rst
+++ /dev/null
@@ -1,18 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-.. c:type:: dtv_stats
-
-****************
-struct dtv_stats
-****************
-
-
-.. code-block:: c
-
- struct dtv_stats {
- __u8 scale; /* enum fecap_scale_params type */
- union {
- __u64 uvalue; /* for counters and relative scales */
- __s64 svalue; /* for 1/1000 dB measures */
- };
- } __packed;
diff --git a/Documentation/media/uapi/dvb/dvb-fe-read-status.rst b/Documentation/media/uapi/dvb/dvb-fe-read-status.rst
index 76c20612b274..212f032cad8b 100644
--- a/Documentation/media/uapi/dvb/dvb-fe-read-status.rst
+++ b/Documentation/media/uapi/dvb/dvb-fe-read-status.rst
@@ -20,6 +20,6 @@ Signal statistics are provided via
.. note::
Most statistics require the demodulator to be fully locked
- (e. g. with FE_HAS_LOCK bit set). See
+ (e. g. with :c:type:`FE_HAS_LOCK <fe_status>` bit set). See
:ref:`Frontend statistics indicators <frontend-stat-properties>` for
more details.
diff --git a/Documentation/media/uapi/dvb/dvb-frontend-parameters.rst b/Documentation/media/uapi/dvb/dvb-frontend-parameters.rst
index 899fd5c3545e..b152166f8fa7 100644
--- a/Documentation/media/uapi/dvb/dvb-frontend-parameters.rst
+++ b/Documentation/media/uapi/dvb/dvb-frontend-parameters.rst
@@ -24,7 +24,7 @@ instead, in order to be able to support the newer System Delivery like
DVB-S2, DVB-T2, DVB-C2, ISDB, etc.
All kinds of parameters are combined as a union in the
-FrontendParameters structure:
+``dvb_frontend_parameters`` structure:
.. code-block:: c
diff --git a/Documentation/media/uapi/dvb/dvbapi.rst b/Documentation/media/uapi/dvb/dvbapi.rst
index 37680137e3f2..18c86b3a3af1 100644
--- a/Documentation/media/uapi/dvb/dvbapi.rst
+++ b/Documentation/media/uapi/dvb/dvbapi.rst
@@ -10,12 +10,27 @@ Part II - Digital TV API
.. note::
- This API is also known as **DVB API**, although it is generic
- enough to support all digital TV standards.
+ This API is also known as Linux **DVB API**.
+
+ It it was originally written to support the European digital TV
+ standard (DVB), and later extended to support all digital TV standards.
+
+ In order to avoid confusion, within this document, it was opted to refer to
+ it, and to associated hardware as **Digital TV**.
+
+ The word **DVB** is reserved to be used for:
+
+ - the Digital TV API version
+ (e. g. DVB API version 3 or DVB API version 5);
+ - digital TV data types (enums, structs, defines, etc);
+ - digital TV device nodes (``/dev/dvb/...``);
+ - the European DVB standard.
**Version 5.10**
-.. class:: toc-title
+.. only:: html
+
+ .. class:: toc-title
Table of Contents
@@ -30,12 +45,7 @@ Part II - Digital TV API
net
legacy_dvb_apis
examples
- audio_h
- ca_h
- dmx_h
- frontend_h
- net_h
- video_h
+ headers
**********************
@@ -46,11 +56,11 @@ Authors:
- J. K. Metzler, Ralph <rjkm@metzlerbros.de>
- - Original author of the DVB API documentation.
+ - Original author of the Digital TV API documentation.
- O. C. Metzler, Marcus <rjkm@metzlerbros.de>
- - Original author of the DVB API documentation.
+ - Original author of the Digital TV API documentation.
- Carvalho Chehab, Mauro <m.chehab@kernel.org>
@@ -58,21 +68,26 @@ Authors:
**Copyright** |copy| 2002-2003 : Convergence GmbH
-**Copyright** |copy| 2009-2016 : Mauro Carvalho Chehab
+**Copyright** |copy| 2009-2017 : Mauro Carvalho Chehab
****************
Revision History
****************
+:revision: 2.2.0 / 2017-09-01 (*mcc*)
+
+Most gaps between the uAPI document and the Kernel implementation
+got fixed for the non-legacy API.
+
:revision: 2.1.0 / 2015-05-29 (*mcc*)
DocBook improvements and cleanups, in order to document the system calls
on a more standard way and provide more description about the current
-DVB API.
+Digital TV API.
:revision: 2.0.4 / 2011-05-06 (*mcc*)
-Add more information about DVB APIv5, better describing the frontend
+Add more information about DVBv5 API, better describing the frontend
GET/SET props ioctl's.
diff --git a/Documentation/media/uapi/dvb/dvbproperty-006.rst b/Documentation/media/uapi/dvb/dvbproperty-006.rst
deleted file mode 100644
index 3343a0f306fe..000000000000
--- a/Documentation/media/uapi/dvb/dvbproperty-006.rst
+++ /dev/null
@@ -1,12 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-**************
-Property types
-**************
-
-On :ref:`FE_GET_PROPERTY and FE_SET_PROPERTY <FE_GET_PROPERTY>`,
-the actual action is determined by the dtv_property cmd/data pairs.
-With one single ioctl, is possible to get/set up to 64 properties. The
-actual meaning of each property is described on the next sections.
-
-The available frontend property types are shown on the next section.
diff --git a/Documentation/media/uapi/dvb/dvbproperty.rst b/Documentation/media/uapi/dvb/dvbproperty.rst
index dd2d71ce43fa..1a56c1724e59 100644
--- a/Documentation/media/uapi/dvb/dvbproperty.rst
+++ b/Documentation/media/uapi/dvb/dvbproperty.rst
@@ -2,63 +2,76 @@
.. _frontend-properties:
-DVB Frontend properties
-=======================
+**************
+Property types
+**************
Tuning into a Digital TV physical channel and starting decoding it
requires changing a set of parameters, in order to control the tuner,
the demodulator, the Linear Low-noise Amplifier (LNA) and to set the
-antenna subsystem via Satellite Equipment Control (SEC), on satellite
-systems. The actual parameters are specific to each particular digital
+antenna subsystem via Satellite Equipment Control - SEC (on satellite
+systems). The actual parameters are specific to each particular digital
TV standards, and may change as the digital TV specs evolves.
-In the past, the strategy used was to have a union with the parameters
-needed to tune for DVB-S, DVB-C, DVB-T and ATSC delivery systems grouped
-there. The problem is that, as the second generation standards appeared,
-those structs were not big enough to contain the additional parameters.
-Also, the union didn't have any space left to be expanded without
-breaking userspace. So, the decision was to deprecate the legacy
-union/struct based approach, in favor of a properties set approach.
+In the past (up to DVB API version 3 - DVBv3), the strategy used was to have a
+union with the parameters needed to tune for DVB-S, DVB-C, DVB-T and
+ATSC delivery systems grouped there. The problem is that, as the second
+generation standards appeared, the size of such union was not big
+enough to group the structs that would be required for those new
+standards. Also, extending it would break userspace.
+
+So, the legacy union/struct based approach was deprecated, in favor
+of a properties set approach. On such approach,
+:ref:`FE_GET_PROPERTY and FE_SET_PROPERTY <FE_GET_PROPERTY>` are used
+to setup the frontend and read its status.
+
+The actual action is determined by a set of dtv_property cmd/data pairs.
+With one single ioctl, is possible to get/set up to 64 properties.
+
+This section describes the new and recommended way to set the frontend,
+with supports all digital TV delivery systems.
.. note::
- On Linux DVB API version 3, setting a frontend were done via
- struct :c:type:`dvb_frontend_parameters`.
- This got replaced on version 5 (also called "S2API", as this API were
- added originally_enabled to provide support for DVB-S2), because the
- old API has a very limited support to new standards and new hardware.
- This section describes the new and recommended way to set the frontend,
- with suppports all digital TV delivery systems.
-
-Example: with the properties based approach, in order to set the tuner
-to a DVB-C channel at 651 kHz, modulated with 256-QAM, FEC 3/4 and
-symbol rate of 5.217 Mbauds, those properties should be sent to
+ 1. On Linux DVB API version 3, setting a frontend was done via
+ struct :c:type:`dvb_frontend_parameters`.
+
+ 2. Don't use DVB API version 3 calls on hardware with supports
+ newer standards. Such API provides no suport or a very limited
+ support to new standards and/or new hardware.
+
+ 3. Nowadays, most frontends support multiple delivery systems.
+ Only with DVB API version 5 calls it is possible to switch between
+ the multiple delivery systems supported by a frontend.
+
+ 4. DVB API version 5 is also called *S2API*, as the first
+ new standard added to it was DVB-S2.
+
+**Example**: in order to set the hardware to tune into a DVB-C channel
+at 651 kHz, modulated with 256-QAM, FEC 3/4 and symbol rate of 5.217
+Mbauds, those properties should be sent to
:ref:`FE_SET_PROPERTY <FE_GET_PROPERTY>` ioctl:
-- :ref:`DTV_DELIVERY_SYSTEM <DTV-DELIVERY-SYSTEM>` =
- SYS_DVBC_ANNEX_A
+ :ref:`DTV_DELIVERY_SYSTEM <DTV-DELIVERY-SYSTEM>` = SYS_DVBC_ANNEX_A
-- :ref:`DTV_FREQUENCY <DTV-FREQUENCY>` = 651000000
+ :ref:`DTV_FREQUENCY <DTV-FREQUENCY>` = 651000000
-- :ref:`DTV_MODULATION <DTV-MODULATION>` = QAM_256
+ :ref:`DTV_MODULATION <DTV-MODULATION>` = QAM_256
-- :ref:`DTV_INVERSION <DTV-INVERSION>` = INVERSION_AUTO
+ :ref:`DTV_INVERSION <DTV-INVERSION>` = INVERSION_AUTO
-- :ref:`DTV_SYMBOL_RATE <DTV-SYMBOL-RATE>` = 5217000
+ :ref:`DTV_SYMBOL_RATE <DTV-SYMBOL-RATE>` = 5217000
-- :ref:`DTV_INNER_FEC <DTV-INNER-FEC>` = FEC_3_4
+ :ref:`DTV_INNER_FEC <DTV-INNER-FEC>` = FEC_3_4
-- :ref:`DTV_TUNE <DTV-TUNE>`
+ :ref:`DTV_TUNE <DTV-TUNE>`
The code that would that would do the above is show in
:ref:`dtv-prop-example`.
-.. _dtv-prop-example:
-
-Example: Setting digital TV frontend properties
-===============================================
-
.. code-block:: c
+ :caption: Example: Setting digital TV frontend properties
+ :name: dtv-prop-example
#include <stdio.h>
#include <fcntl.h>
@@ -102,17 +115,12 @@ Example: Setting digital TV frontend properties
provides methods for usual operations like program scanning and to
read/write channel descriptor files.
-
.. toctree::
:maxdepth: 1
- dtv-stats
- dtv-fe-stats
- dtv-property
- dtv-properties
- dvbproperty-006
fe_property_parameters
frontend-stat-properties
frontend-property-terrestrial-systems
frontend-property-cable-systems
frontend-property-satellite-systems
+ frontend-header
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index c4140fb518af..f6fe2f837373 100644
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diff --git a/Documentation/media/uapi/dvb/examples.rst b/Documentation/media/uapi/dvb/examples.rst
index 1a94966312c0..e0f627ca2e4d 100644
--- a/Documentation/media/uapi/dvb/examples.rst
+++ b/Documentation/media/uapi/dvb/examples.rst
@@ -6,8 +6,8 @@
Examples
********
-In this section we would like to present some examples for using the DVB
-API.
+In this section we would like to present some examples for using the Digital
+TV API.
.. note::
diff --git a/Documentation/media/uapi/dvb/fe-diseqc-recv-slave-reply.rst b/Documentation/media/uapi/dvb/fe-diseqc-recv-slave-reply.rst
index 302db2857f90..f220ee351e15 100644
--- a/Documentation/media/uapi/dvb/fe-diseqc-recv-slave-reply.rst
+++ b/Documentation/media/uapi/dvb/fe-diseqc-recv-slave-reply.rst
@@ -26,8 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <frontend_f_open>`.
``argp``
- pointer to struct
- :c:type:`dvb_diseqc_slave_reply`
+ pointer to struct :c:type:`dvb_diseqc_slave_reply`.
Description
@@ -35,46 +34,15 @@ Description
Receives reply from a DiSEqC 2.0 command.
-.. c:type:: dvb_diseqc_slave_reply
-
-.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
-
-.. flat-table:: struct dvb_diseqc_slave_reply
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
-
- - .. row 1
-
- - uint8_t
-
- - msg[4]
-
- - DiSEqC message (framing, data[3])
-
- - .. row 2
-
- - uint8_t
-
- - msg_len
-
- - Length of the DiSEqC message. Valid values are 0 to 4, where 0
- means no msg
-
- - .. row 3
-
- - int
-
- - timeout
-
- - Return from ioctl after timeout ms with errorcode when no message
- was received
-
+The received message is stored at the buffer pointed by ``argp``.
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-diseqc-reset-overload.rst b/Documentation/media/uapi/dvb/fe-diseqc-reset-overload.rst
index 75116f283faf..78476c1c7bf5 100644
--- a/Documentation/media/uapi/dvb/fe-diseqc-reset-overload.rst
+++ b/Documentation/media/uapi/dvb/fe-diseqc-reset-overload.rst
@@ -31,12 +31,16 @@ Description
If the bus has been automatically powered off due to power overload,
this ioctl call restores the power to the bus. The call requires
read/write access to the device. This call has no effect if the device
-is manually powered off. Not all DVB adapters support this ioctl.
+is manually powered off. Not all Digital TV adapters support this ioctl.
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-diseqc-send-burst.rst b/Documentation/media/uapi/dvb/fe-diseqc-send-burst.rst
index 26272f2860bc..a7e05914efae 100644
--- a/Documentation/media/uapi/dvb/fe-diseqc-send-burst.rst
+++ b/Documentation/media/uapi/dvb/fe-diseqc-send-burst.rst
@@ -15,7 +15,7 @@ FE_DISEQC_SEND_BURST - Sends a 22KHz tone burst for 2x1 mini DiSEqC satellite se
Synopsis
========
-.. c:function:: int ioctl( int fd, FE_DISEQC_SEND_BURST, enum fe_sec_mini_cmd *tone )
+.. c:function:: int ioctl( int fd, FE_DISEQC_SEND_BURST, enum fe_sec_mini_cmd tone )
:name: FE_DISEQC_SEND_BURST
@@ -26,7 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <frontend_f_open>`.
``tone``
- pointer to enum :c:type:`fe_sec_mini_cmd`
+ An integer enumered value described at :c:type:`fe_sec_mini_cmd`.
Description
@@ -39,39 +39,14 @@ read/write permissions.
It provides support for what's specified at
`Digital Satellite Equipment Control (DiSEqC) - Simple "ToneBurst" Detection Circuit specification. <http://www.eutelsat.com/files/contributed/satellites/pdf/Diseqc/associated%20docs/simple_tone_burst_detec.pdf>`__
-.. c:type:: fe_sec_mini_cmd
-
-.. flat-table:: enum fe_sec_mini_cmd
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _SEC-MINI-A:
-
- ``SEC_MINI_A``
-
- - Sends a mini-DiSEqC 22kHz '0' Tone Burst to select satellite-A
-
- - .. row 3
-
- - .. _SEC-MINI-B:
-
- ``SEC_MINI_B``
-
- - Sends a mini-DiSEqC 22kHz '1' Data Burst to select satellite-B
-
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-diseqc-send-master-cmd.rst b/Documentation/media/uapi/dvb/fe-diseqc-send-master-cmd.rst
index bbcab3df39b5..6bd3994edfc2 100644
--- a/Documentation/media/uapi/dvb/fe-diseqc-send-master-cmd.rst
+++ b/Documentation/media/uapi/dvb/fe-diseqc-send-master-cmd.rst
@@ -33,39 +33,17 @@ Arguments
Description
===========
-Sends a DiSEqC command to the antenna subsystem.
-
-
-.. c:type:: dvb_diseqc_master_cmd
-
-.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
-
-.. flat-table:: struct dvb_diseqc_master_cmd
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
-
- - .. row 1
-
- - uint8_t
-
- - msg[6]
-
- - DiSEqC message (framing, address, command, data[3])
-
- - .. row 2
-
- - uint8_t
-
- - msg_len
-
- - Length of the DiSEqC message. Valid values are 3 to 6
+Sends the DiSEqC command pointed by :c:type:`dvb_diseqc_master_cmd`
+to the antenna subsystem.
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-dishnetwork-send-legacy-cmd.rst b/Documentation/media/uapi/dvb/fe-dishnetwork-send-legacy-cmd.rst
index f41371f12456..dcf2d20d460f 100644
--- a/Documentation/media/uapi/dvb/fe-dishnetwork-send-legacy-cmd.rst
+++ b/Documentation/media/uapi/dvb/fe-dishnetwork-send-legacy-cmd.rst
@@ -46,6 +46,10 @@ dishes were already legacy in 2004.
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-enable-high-lnb-voltage.rst b/Documentation/media/uapi/dvb/fe-enable-high-lnb-voltage.rst
index bacafbc462d2..b20cb360fe37 100644
--- a/Documentation/media/uapi/dvb/fe-enable-high-lnb-voltage.rst
+++ b/Documentation/media/uapi/dvb/fe-enable-high-lnb-voltage.rst
@@ -45,6 +45,10 @@ voltages.
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-get-event.rst b/Documentation/media/uapi/dvb/fe-get-event.rst
index 8a719c33073d..505db94bf183 100644
--- a/Documentation/media/uapi/dvb/fe-get-event.rst
+++ b/Documentation/media/uapi/dvb/fe-get-event.rst
@@ -44,10 +44,10 @@ an event becomes available.
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
-:ref:`Generic Error Codes <gen-errors>` chapter.
+On success 0 is returned.
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
.. flat-table::
@@ -66,3 +66,6 @@ appropriately. The generic error codes are described at the
- ``EOVERFLOW``
- Overflow in event queue - one or more events were lost.
+
+Generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-get-frontend.rst b/Documentation/media/uapi/dvb/fe-get-frontend.rst
index d53a3f8237c3..5db552cedd70 100644
--- a/Documentation/media/uapi/dvb/fe-get-frontend.rst
+++ b/Documentation/media/uapi/dvb/fe-get-frontend.rst
@@ -42,11 +42,10 @@ this command, read-only access to the device is sufficient.
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
-:ref:`Generic Error Codes <gen-errors>` chapter.
-
+On success 0 is returned.
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
.. flat-table::
:header-rows: 0
@@ -58,3 +57,6 @@ appropriately. The generic error codes are described at the
- ``EINVAL``
- Maximum supported symbol rate reached.
+
+Generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-get-info.rst b/Documentation/media/uapi/dvb/fe-get-info.rst
index e3d64b251f61..49307c0abfee 100644
--- a/Documentation/media/uapi/dvb/fe-get-info.rst
+++ b/Documentation/media/uapi/dvb/fe-get-info.rst
@@ -9,7 +9,8 @@ ioctl FE_GET_INFO
Name
====
-FE_GET_INFO - Query DVB frontend capabilities and returns information about the - front-end. This call only requires read-only access to the device
+FE_GET_INFO - Query Digital TV frontend capabilities and returns information
+about the - front-end. This call only requires read-only access to the device.
Synopsis
@@ -33,119 +34,13 @@ Arguments
Description
===========
-All DVB frontend devices support the ``FE_GET_INFO`` ioctl. It is used
-to identify kernel devices compatible with this specification and to
+All Digital TV frontend devices support the :ref:`FE_GET_INFO` ioctl. It is
+used to identify kernel devices compatible with this specification and to
obtain information about driver and hardware capabilities. The ioctl
takes a pointer to dvb_frontend_info which is filled by the driver.
When the driver is not compatible with this specification the ioctl
returns an error.
-.. c:type:: dvb_frontend_info
-
-.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
-
-.. flat-table:: struct dvb_frontend_info
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
-
- - .. row 1
-
- - char
-
- - name[128]
-
- - Name of the frontend
-
- - .. row 2
-
- - fe_type_t
-
- - type
-
- - **DEPRECATED**. DVBv3 type. Should not be used on modern programs,
- as a frontend may have more than one type. So, the DVBv5 API
- should be used instead to enumerate and select the frontend type.
-
- - .. row 3
-
- - uint32_t
-
- - frequency_min
-
- - Minimal frequency supported by the frontend
-
- - .. row 4
-
- - uint32_t
-
- - frequency_max
-
- - Maximal frequency supported by the frontend
-
- - .. row 5
-
- - uint32_t
-
- - frequency_stepsize
-
- - Frequency step - all frequencies are multiple of this value
-
- - .. row 6
-
- - uint32_t
-
- - frequency_tolerance
-
- - Tolerance of the frequency
-
- - .. row 7
-
- - uint32_t
-
- - symbol_rate_min
-
- - Minimal symbol rate (for Cable/Satellite systems), in bauds
-
- - .. row 8
-
- - uint32_t
-
- - symbol_rate_max
-
- - Maximal symbol rate (for Cable/Satellite systems), in bauds
-
- - .. row 9
-
- - uint32_t
-
- - symbol_rate_tolerance
-
- - Maximal symbol rate tolerance, in ppm
-
- - .. row 10
-
- - uint32_t
-
- - notifier_delay
-
- - **DEPRECATED**. Not used by any driver.
-
- - .. row 11
-
- - enum :c:type:`fe_caps`
-
- - caps
-
- - Capabilities supported by the frontend
-
-
-.. note::
-
- The frequencies are specified in Hz for Terrestrial and Cable
- systems. They're specified in kHz for Satellite systems
-
frontend capabilities
=====================
@@ -153,274 +48,16 @@ frontend capabilities
Capabilities describe what a frontend can do. Some capabilities are
supported only on some specific frontend types.
-.. c:type:: fe_caps
-
-.. tabularcolumns:: |p{6.5cm}|p{11.0cm}|
-
-.. flat-table:: enum fe_caps
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _FE-IS-STUPID:
-
- ``FE_IS_STUPID``
-
- - There's something wrong at the frontend, and it can't report its
- capabilities
-
- - .. row 3
-
- - .. _FE-CAN-INVERSION-AUTO:
-
- ``FE_CAN_INVERSION_AUTO``
-
- - The frontend is capable of auto-detecting inversion
-
- - .. row 4
-
- - .. _FE-CAN-FEC-1-2:
-
- ``FE_CAN_FEC_1_2``
-
- - The frontend supports FEC 1/2
-
- - .. row 5
-
- - .. _FE-CAN-FEC-2-3:
-
- ``FE_CAN_FEC_2_3``
-
- - The frontend supports FEC 2/3
-
- - .. row 6
-
- - .. _FE-CAN-FEC-3-4:
-
- ``FE_CAN_FEC_3_4``
-
- - The frontend supports FEC 3/4
-
- - .. row 7
-
- - .. _FE-CAN-FEC-4-5:
-
- ``FE_CAN_FEC_4_5``
-
- - The frontend supports FEC 4/5
-
- - .. row 8
-
- - .. _FE-CAN-FEC-5-6:
-
- ``FE_CAN_FEC_5_6``
-
- - The frontend supports FEC 5/6
-
- - .. row 9
-
- - .. _FE-CAN-FEC-6-7:
-
- ``FE_CAN_FEC_6_7``
-
- - The frontend supports FEC 6/7
-
- - .. row 10
-
- - .. _FE-CAN-FEC-7-8:
-
- ``FE_CAN_FEC_7_8``
-
- - The frontend supports FEC 7/8
-
- - .. row 11
-
- - .. _FE-CAN-FEC-8-9:
-
- ``FE_CAN_FEC_8_9``
-
- - The frontend supports FEC 8/9
-
- - .. row 12
-
- - .. _FE-CAN-FEC-AUTO:
-
- ``FE_CAN_FEC_AUTO``
-
- - The frontend can autodetect FEC.
-
- - .. row 13
-
- - .. _FE-CAN-QPSK:
-
- ``FE_CAN_QPSK``
-
- - The frontend supports QPSK modulation
-
- - .. row 14
-
- - .. _FE-CAN-QAM-16:
-
- ``FE_CAN_QAM_16``
-
- - The frontend supports 16-QAM modulation
-
- - .. row 15
-
- - .. _FE-CAN-QAM-32:
-
- ``FE_CAN_QAM_32``
-
- - The frontend supports 32-QAM modulation
-
- - .. row 16
-
- - .. _FE-CAN-QAM-64:
-
- ``FE_CAN_QAM_64``
-
- - The frontend supports 64-QAM modulation
-
- - .. row 17
-
- - .. _FE-CAN-QAM-128:
-
- ``FE_CAN_QAM_128``
-
- - The frontend supports 128-QAM modulation
-
- - .. row 18
-
- - .. _FE-CAN-QAM-256:
-
- ``FE_CAN_QAM_256``
-
- - The frontend supports 256-QAM modulation
-
- - .. row 19
-
- - .. _FE-CAN-QAM-AUTO:
-
- ``FE_CAN_QAM_AUTO``
-
- - The frontend can autodetect modulation
-
- - .. row 20
-
- - .. _FE-CAN-TRANSMISSION-MODE-AUTO:
-
- ``FE_CAN_TRANSMISSION_MODE_AUTO``
-
- - The frontend can autodetect the transmission mode
-
- - .. row 21
-
- - .. _FE-CAN-BANDWIDTH-AUTO:
-
- ``FE_CAN_BANDWIDTH_AUTO``
-
- - The frontend can autodetect the bandwidth
-
- - .. row 22
-
- - .. _FE-CAN-GUARD-INTERVAL-AUTO:
-
- ``FE_CAN_GUARD_INTERVAL_AUTO``
-
- - The frontend can autodetect the guard interval
-
- - .. row 23
-
- - .. _FE-CAN-HIERARCHY-AUTO:
-
- ``FE_CAN_HIERARCHY_AUTO``
-
- - The frontend can autodetect hierarch
-
- - .. row 24
-
- - .. _FE-CAN-8VSB:
-
- ``FE_CAN_8VSB``
-
- - The frontend supports 8-VSB modulation
-
- - .. row 25
-
- - .. _FE-CAN-16VSB:
-
- ``FE_CAN_16VSB``
-
- - The frontend supports 16-VSB modulation
-
- - .. row 26
-
- - .. _FE-HAS-EXTENDED-CAPS:
-
- ``FE_HAS_EXTENDED_CAPS``
-
- - Currently, unused
-
- - .. row 27
-
- - .. _FE-CAN-MULTISTREAM:
-
- ``FE_CAN_MULTISTREAM``
-
- - The frontend supports multistream filtering
-
- - .. row 28
-
- - .. _FE-CAN-TURBO-FEC:
-
- ``FE_CAN_TURBO_FEC``
-
- - The frontend supports turbo FEC modulation
-
- - .. row 29
-
- - .. _FE-CAN-2G-MODULATION:
-
- ``FE_CAN_2G_MODULATION``
-
- - The frontend supports "2nd generation modulation" (DVB-S2/T2)>
-
- - .. row 30
-
- - .. _FE-NEEDS-BENDING:
-
- ``FE_NEEDS_BENDING``
-
- - Not supported anymore, don't use it
-
- - .. row 31
-
- - .. _FE-CAN-RECOVER:
-
- ``FE_CAN_RECOVER``
-
- - The frontend can recover from a cable unplug automatically
-
- - .. row 32
-
- - .. _FE-CAN-MUTE-TS:
-
- ``FE_CAN_MUTE_TS``
-
- - The frontend can stop spurious TS data output
+The frontend capabilities are described at :c:type:`fe_caps`.
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-get-property.rst b/Documentation/media/uapi/dvb/fe-get-property.rst
index 015d4db597b5..948d2ba84f2c 100644
--- a/Documentation/media/uapi/dvb/fe-get-property.rst
+++ b/Documentation/media/uapi/dvb/fe-get-property.rst
@@ -29,13 +29,13 @@ Arguments
File descriptor returned by :ref:`open() <frontend_f_open>`.
``argp``
- pointer to struct :c:type:`dtv_properties`
+ Pointer to struct :c:type:`dtv_properties`.
Description
===========
-All DVB frontend devices support the ``FE_SET_PROPERTY`` and
+All Digital TV frontend devices support the ``FE_SET_PROPERTY`` and
``FE_GET_PROPERTY`` ioctls. The supported properties and statistics
depends on the delivery system and on the device:
@@ -64,6 +64,10 @@ depends on the delivery system and on the device:
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-read-ber.rst b/Documentation/media/uapi/dvb/fe-read-ber.rst
index e54972ad5250..1e6a79567a4c 100644
--- a/Documentation/media/uapi/dvb/fe-read-ber.rst
+++ b/Documentation/media/uapi/dvb/fe-read-ber.rst
@@ -41,6 +41,10 @@ access to the device is sufficient.
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-read-signal-strength.rst b/Documentation/media/uapi/dvb/fe-read-signal-strength.rst
index 4b13c4757744..198f6dfb53a1 100644
--- a/Documentation/media/uapi/dvb/fe-read-signal-strength.rst
+++ b/Documentation/media/uapi/dvb/fe-read-signal-strength.rst
@@ -41,6 +41,10 @@ to the device is sufficient.
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-read-snr.rst b/Documentation/media/uapi/dvb/fe-read-snr.rst
index 2aed487f5c99..6db22c043512 100644
--- a/Documentation/media/uapi/dvb/fe-read-snr.rst
+++ b/Documentation/media/uapi/dvb/fe-read-snr.rst
@@ -41,6 +41,10 @@ to the device is sufficient.
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-read-status.rst b/Documentation/media/uapi/dvb/fe-read-status.rst
index 812f086c20f5..4adb52f084ff 100644
--- a/Documentation/media/uapi/dvb/fe-read-status.rst
+++ b/Documentation/media/uapi/dvb/fe-read-status.rst
@@ -33,7 +33,7 @@ Arguments
Description
===========
-All DVB frontend devices support the ``FE_READ_STATUS`` ioctl. It is
+All Digital TV frontend devices support the ``FE_READ_STATUS`` ioctl. It is
used to check about the locking status of the frontend after being
tuned. The ioctl takes a pointer to an integer where the status will be
written.
@@ -52,85 +52,14 @@ The fe_status parameter is used to indicate the current state and/or
state changes of the frontend hardware. It is produced using the enum
:c:type:`fe_status` values on a bitmask
-.. c:type:: fe_status
-
-.. tabularcolumns:: |p{3.5cm}|p{14.0cm}|
-
-.. _fe-status:
-
-.. flat-table:: enum fe_status
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _FE-HAS-SIGNAL:
-
- ``FE_HAS_SIGNAL``
-
- - The frontend has found something above the noise level
-
- - .. row 3
-
- - .. _FE-HAS-CARRIER:
-
- ``FE_HAS_CARRIER``
-
- - The frontend has found a DVB signal
-
- - .. row 4
-
- - .. _FE-HAS-VITERBI:
-
- ``FE_HAS_VITERBI``
-
- - The frontend FEC inner coding (Viterbi, LDPC or other inner code)
- is stable
-
- - .. row 5
-
- - .. _FE-HAS-SYNC:
-
- ``FE_HAS_SYNC``
-
- - Synchronization bytes was found
-
- - .. row 6
-
- - .. _FE-HAS-LOCK:
-
- ``FE_HAS_LOCK``
-
- - The DVB were locked and everything is working
-
- - .. row 7
-
- - .. _FE-TIMEDOUT:
-
- ``FE_TIMEDOUT``
-
- - no lock within the last about 2 seconds
-
- - .. row 8
-
- - .. _FE-REINIT:
-
- ``FE_REINIT``
-
- - The frontend was reinitialized, application is recommended to
- reset DiSEqC, tone and parameters
-
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-read-uncorrected-blocks.rst b/Documentation/media/uapi/dvb/fe-read-uncorrected-blocks.rst
index 46687c123402..f2c688bcacb3 100644
--- a/Documentation/media/uapi/dvb/fe-read-uncorrected-blocks.rst
+++ b/Documentation/media/uapi/dvb/fe-read-uncorrected-blocks.rst
@@ -43,6 +43,10 @@ sufficient.
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-set-frontend-tune-mode.rst b/Documentation/media/uapi/dvb/fe-set-frontend-tune-mode.rst
index 1d5878da2f41..3c4bc179b313 100644
--- a/Documentation/media/uapi/dvb/fe-set-frontend-tune-mode.rst
+++ b/Documentation/media/uapi/dvb/fe-set-frontend-tune-mode.rst
@@ -30,7 +30,7 @@ Arguments
- 0 - normal tune mode
- - FE_TUNE_MODE_ONESHOT - When set, this flag will disable any
+ - ``FE_TUNE_MODE_ONESHOT`` - When set, this flag will disable any
zigzagging or other "normal" tuning behaviour. Additionally,
there will be no automatic monitoring of the lock status, and
hence no frontend events will be generated. If a frontend device
@@ -42,12 +42,16 @@ Description
===========
Allow setting tuner mode flags to the frontend, between 0 (normal) or
-FE_TUNE_MODE_ONESHOT mode
+``FE_TUNE_MODE_ONESHOT`` mode
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-set-frontend.rst b/Documentation/media/uapi/dvb/fe-set-frontend.rst
index 7f97dce9aee6..4f3dcf338254 100644
--- a/Documentation/media/uapi/dvb/fe-set-frontend.rst
+++ b/Documentation/media/uapi/dvb/fe-set-frontend.rst
@@ -48,17 +48,24 @@ requires read/write access to the device.
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
-:ref:`Generic Error Codes <gen-errors>` chapter.
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+.. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
.. flat-table::
:header-rows: 0
:stub-columns: 0
-
+ :widths: 1 16
- .. row 1
- ``EINVAL``
- Maximum supported symbol rate reached.
+
+
+Generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-set-tone.rst b/Documentation/media/uapi/dvb/fe-set-tone.rst
index bea193234cb4..758efa11014c 100644
--- a/Documentation/media/uapi/dvb/fe-set-tone.rst
+++ b/Documentation/media/uapi/dvb/fe-set-tone.rst
@@ -15,7 +15,7 @@ FE_SET_TONE - Sets/resets the generation of the continuous 22kHz tone.
Synopsis
========
-.. c:function:: int ioctl( int fd, FE_SET_TONE, enum fe_sec_tone_mode *tone )
+.. c:function:: int ioctl( int fd, FE_SET_TONE, enum fe_sec_tone_mode tone )
:name: FE_SET_TONE
@@ -26,7 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <frontend_f_open>`.
``tone``
- pointer to enum :c:type:`fe_sec_tone_mode`
+ an integer enumered value described at :c:type:`fe_sec_tone_mode`
Description
@@ -45,40 +45,14 @@ this is done using the DiSEqC ioctls.
capability of selecting the band. So, it is recommended that applications
would change to SEC_TONE_OFF when the device is not used.
-.. c:type:: fe_sec_tone_mode
-
-.. flat-table:: enum fe_sec_tone_mode
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _SEC-TONE-ON:
-
- ``SEC_TONE_ON``
-
- - Sends a 22kHz tone burst to the antenna
-
- - .. row 3
-
- - .. _SEC-TONE-OFF:
-
- ``SEC_TONE_OFF``
-
- - Don't send a 22kHz tone to the antenna (except if the
- FE_DISEQC_* ioctls are called)
-
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-set-voltage.rst b/Documentation/media/uapi/dvb/fe-set-voltage.rst
index fcf6f38ef18e..38d4485290a0 100644
--- a/Documentation/media/uapi/dvb/fe-set-voltage.rst
+++ b/Documentation/media/uapi/dvb/fe-set-voltage.rst
@@ -15,7 +15,7 @@ FE_SET_VOLTAGE - Allow setting the DC level sent to the antenna subsystem.
Synopsis
========
-.. c:function:: int ioctl( int fd, FE_SET_VOLTAGE, enum fe_sec_voltage *voltage )
+.. c:function:: int ioctl( int fd, FE_SET_VOLTAGE, enum fe_sec_voltage voltage )
:name: FE_SET_VOLTAGE
@@ -26,10 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <frontend_f_open>`.
``voltage``
- pointer to enum :c:type:`fe_sec_voltage`
-
- Valid values are described at enum
- :c:type:`fe_sec_voltage`.
+ an integer enumered value described at :c:type:`fe_sec_voltage`
Description
@@ -56,6 +53,10 @@ power up the LNBf.
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/fe-type-t.rst b/Documentation/media/uapi/dvb/fe-type-t.rst
index 548b965188d0..dee32ae104d7 100644
--- a/Documentation/media/uapi/dvb/fe-type-t.rst
+++ b/Documentation/media/uapi/dvb/fe-type-t.rst
@@ -78,7 +78,7 @@ parameter.
In the old days, struct :c:type:`dvb_frontend_info`
used to contain ``fe_type_t`` field to indicate the delivery systems,
-filled with either FE_QPSK, FE_QAM, FE_OFDM or FE_ATSC. While this
+filled with either ``FE_QPSK, FE_QAM, FE_OFDM`` or ``FE_ATSC``. While this
is still filled to keep backward compatibility, the usage of this field
is deprecated, as it can report just one delivery system, but some
devices support multiple delivery systems. Please use
diff --git a/Documentation/media/uapi/dvb/fe_property_parameters.rst b/Documentation/media/uapi/dvb/fe_property_parameters.rst
index 7bb7559c4500..6eef507fea50 100644
--- a/Documentation/media/uapi/dvb/fe_property_parameters.rst
+++ b/Documentation/media/uapi/dvb/fe_property_parameters.rst
@@ -6,6 +6,11 @@
Digital TV property parameters
******************************
+There are several different Digital TV parameters that can be used by
+:ref:`FE_SET_PROPERTY and FE_GET_PROPERTY ioctls<FE_GET_PROPERTY>`.
+This section describes each of them. Please notice, however, that only
+a subset of them are needed to setup a frontend.
+
.. _DTV-UNDEFINED:
@@ -67,144 +72,36 @@ DTV_MODULATION
==============
Specifies the frontend modulation type for delivery systems that
-supports more than one modulation type. The modulation can be one of the
-types defined by enum :c:type:`fe_modulation`.
-
-
-.. c:type:: fe_modulation
-
-Modulation property
--------------------
-
-Most of the digital TV standards currently offers more than one possible
-modulation (sometimes called as "constellation" on some standards). This
-enum contains the values used by the Kernel. Please note that not all
-modulations are supported by a given standard.
-
-
-.. flat-table:: enum fe_modulation
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _QPSK:
-
- ``QPSK``
-
- - QPSK modulation
-
- - .. row 3
-
- - .. _QAM-16:
-
- ``QAM_16``
-
- - 16-QAM modulation
-
- - .. row 4
-
- - .. _QAM-32:
-
- ``QAM_32``
-
- - 32-QAM modulation
-
- - .. row 5
-
- - .. _QAM-64:
-
- ``QAM_64``
-
- - 64-QAM modulation
-
- - .. row 6
-
- - .. _QAM-128:
-
- ``QAM_128``
-
- - 128-QAM modulation
-
- - .. row 7
-
- - .. _QAM-256:
-
- ``QAM_256``
-
- - 256-QAM modulation
-
- - .. row 8
-
- - .. _QAM-AUTO:
+supports more multiple modulations.
+
+The modulation can be one of the types defined by enum :c:type:`fe_modulation`.
+
+Most of the digital TV standards offers more than one possible
+modulation type.
+
+The table below presents a summary of the types of modulation types
+supported by each delivery system, as currently defined by specs.
+
+======================= =======================================================
+Standard Modulation types
+======================= =======================================================
+ATSC (version 1) 8-VSB and 16-VSB.
+DMTB 4-QAM, 16-QAM, 32-QAM, 64-QAM and 4-QAM-NR.
+DVB-C Annex A/C 16-QAM, 32-QAM, 64-QAM and 256-QAM.
+DVB-C Annex B 64-QAM.
+DVB-T QPSK, 16-QAM and 64-QAM.
+DVB-T2 QPSK, 16-QAM, 64-QAM and 256-QAM.
+DVB-S No need to set. It supports only QPSK.
+DVB-S2 QPSK, 8-PSK, 16-APSK and 32-APSK.
+ISDB-T QPSK, DQPSK, 16-QAM and 64-QAM.
+ISDB-S 8-PSK, QPSK and BPSK.
+======================= =======================================================
- ``QAM_AUTO``
-
- - Autodetect QAM modulation
-
- - .. row 9
-
- - .. _VSB-8:
-
- ``VSB_8``
-
- - 8-VSB modulation
-
- - .. row 10
-
- - .. _VSB-16:
-
- ``VSB_16``
-
- - 16-VSB modulation
-
- - .. row 11
-
- - .. _PSK-8:
-
- ``PSK_8``
-
- - 8-PSK modulation
-
- - .. row 12
-
- - .. _APSK-16:
-
- ``APSK_16``
-
- - 16-APSK modulation
-
- - .. row 13
-
- - .. _APSK-32:
-
- ``APSK_32``
-
- - 32-APSK modulation
-
- - .. row 14
-
- - .. _DQPSK:
-
- ``DQPSK``
-
- - DQPSK modulation
-
- - .. row 15
-
- - .. _QAM-4-NR:
-
- ``QAM_4_NR``
-
- - 4-QAM-NR modulation
+.. note::
+ Please notice that some of the above modulation types may not be
+ defined currently at the Kernel. The reason is simple: no driver
+ needed such definition yet.
.. _DTV-BANDWIDTH-HZ:
@@ -214,32 +111,42 @@ DTV_BANDWIDTH_HZ
Bandwidth for the channel, in HZ.
+Should be set only for terrestrial delivery systems.
+
Possible values: ``1712000``, ``5000000``, ``6000000``, ``7000000``,
``8000000``, ``10000000``.
-.. note::
+======================= =======================================================
+Terrestrial Standard Possible values for bandwidth
+======================= =======================================================
+ATSC (version 1) No need to set. It is always 6MHz.
+DMTB No need to set. It is always 8MHz.
+DVB-T 6MHz, 7MHz and 8MHz.
+DVB-T2 1.172 MHz, 5MHz, 6MHz, 7MHz, 8MHz and 10MHz
+ISDB-T 5MHz, 6MHz, 7MHz and 8MHz, although most places
+ use 6MHz.
+======================= =======================================================
- #. DVB-T supports 6, 7 and 8MHz.
- #. DVB-T2 supports 1.172, 5, 6, 7, 8 and 10MHz.
+.. note::
- #. ISDB-T supports 5MHz, 6MHz, 7MHz and 8MHz, although most
- places use 6MHz.
- #. On DVB-C and DVB-S/S2, the bandwidth depends on the symbol rate.
- So, the Kernel will silently ignore setting :ref:`DTV-BANDWIDTH-HZ`.
+ #. For ISDB-Tsb, the bandwidth can vary depending on the number of
+ connected segments.
- #. For DVB-C and DVB-S/S2, the Kernel will return an estimation of the
- bandwidth, calculated from :ref:`DTV-SYMBOL-RATE` and from
- the rolloff, with is fixed for DVB-C and DVB-S.
+ It can be easily derived from other parameters
+ (DTV_ISDBT_SB_SEGMENT_IDX, DTV_ISDBT_SB_SEGMENT_COUNT).
- #. For DVB-S2, the bandwidth estimation will use :ref:`DTV-ROLLOFF`.
+ #. On Satellite and Cable delivery systems, the bandwidth depends on
+ the symbol rate. So, the Kernel will silently ignore any setting
+ :ref:`DTV-BANDWIDTH-HZ`. I will however fill it back with a
+ bandwidth estimation.
- #. For ISDB-Tsb, it can vary depending on the number of connected
- segments.
+ Such bandwidth estimation takes into account the symbol rate set with
+ :ref:`DTV-SYMBOL-RATE`, and the rolloff factor, with is fixed for
+ DVB-C and DVB-S.
- #. Bandwidth in ISDB-Tsb can be easily derived from other parameters
- (DTV_ISDBT_SB_SEGMENT_IDX, DTV_ISDBT_SB_SEGMENT_COUNT).
+ For DVB-S2, the rolloff should also be set via :ref:`DTV-ROLLOFF`.
.. _DTV-INVERSION:
@@ -249,53 +156,7 @@ DTV_INVERSION
Specifies if the frontend should do spectral inversion or not.
-.. c:type:: fe_spectral_inversion
-
-enum fe_modulation: Frontend spectral inversion
------------------------------------------------
-
-This parameter indicates if spectral inversion should be presumed or
-not. In the automatic setting (``INVERSION_AUTO``) the hardware will try
-to figure out the correct setting by itself. If the hardware doesn't
-support, the DVB core will try to lock at the carrier first with
-inversion off. If it fails, it will try to enable inversion.
-
-
-.. flat-table:: enum fe_modulation
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _INVERSION-OFF:
-
- ``INVERSION_OFF``
-
- - Don't do spectral band inversion.
-
- - .. row 3
-
- - .. _INVERSION-ON:
-
- ``INVERSION_ON``
-
- - Do spectral band inversion.
-
- - .. row 4
-
- - .. _INVERSION-AUTO:
-
- ``INVERSION_AUTO``
-
- - Autodetect spectral band inversion.
-
+The acceptable values are defined by :c:type:`fe_spectral_inversion`.
.. _DTV-DISEQC-MASTER:
@@ -311,8 +172,9 @@ Currently not implemented.
DTV_SYMBOL_RATE
===============
-Digital TV symbol rate, in bauds (symbols/second). Used on cable
-standards.
+Used on cable and satellite delivery systems.
+
+Digital TV symbol rate, in bauds (symbols/second).
.. _DTV-INNER-FEC:
@@ -320,128 +182,9 @@ standards.
DTV_INNER_FEC
=============
-Used cable/satellite transmissions. The acceptable values are:
-
-.. c:type:: fe_code_rate
-
-enum fe_code_rate: type of the Forward Error Correction.
---------------------------------------------------------
-
-.. flat-table:: enum fe_code_rate
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _FEC-NONE:
-
- ``FEC_NONE``
-
- - No Forward Error Correction Code
-
- - .. row 3
-
- - .. _FEC-AUTO:
-
- ``FEC_AUTO``
-
- - Autodetect Error Correction Code
-
- - .. row 4
-
- - .. _FEC-1-2:
-
- ``FEC_1_2``
-
- - Forward Error Correction Code 1/2
-
- - .. row 5
-
- - .. _FEC-2-3:
-
- ``FEC_2_3``
-
- - Forward Error Correction Code 2/3
-
- - .. row 6
-
- - .. _FEC-3-4:
-
- ``FEC_3_4``
-
- - Forward Error Correction Code 3/4
-
- - .. row 7
-
- - .. _FEC-4-5:
-
- ``FEC_4_5``
-
- - Forward Error Correction Code 4/5
-
- - .. row 8
-
- - .. _FEC-5-6:
-
- ``FEC_5_6``
-
- - Forward Error Correction Code 5/6
-
- - .. row 9
-
- - .. _FEC-6-7:
-
- ``FEC_6_7``
-
- - Forward Error Correction Code 6/7
-
- - .. row 10
-
- - .. _FEC-7-8:
-
- ``FEC_7_8``
-
- - Forward Error Correction Code 7/8
-
- - .. row 11
-
- - .. _FEC-8-9:
-
- ``FEC_8_9``
-
- - Forward Error Correction Code 8/9
-
- - .. row 12
-
- - .. _FEC-9-10:
-
- ``FEC_9_10``
-
- - Forward Error Correction Code 9/10
-
- - .. row 13
-
- - .. _FEC-2-5:
-
- ``FEC_2_5``
-
- - Forward Error Correction Code 2/5
-
- - .. row 14
-
- - .. _FEC-3-5:
-
- ``FEC_3_5``
-
- - Forward Error Correction Code 3/5
+Used on cable and satellite delivery systems.
+The acceptable values are defined by :c:type:`fe_code_rate`.
.. _DTV-VOLTAGE:
@@ -449,49 +192,14 @@ enum fe_code_rate: type of the Forward Error Correction.
DTV_VOLTAGE
===========
+Used on satellite delivery systems.
+
The voltage is usually used with non-DiSEqC capable LNBs to switch the
polarzation (horizontal/vertical). When using DiSEqC epuipment this
voltage has to be switched consistently to the DiSEqC commands as
described in the DiSEqC spec.
-
-.. c:type:: fe_sec_voltage
-
-.. flat-table:: enum fe_sec_voltage
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _SEC-VOLTAGE-13:
-
- ``SEC_VOLTAGE_13``
-
- - Set DC voltage level to 13V
-
- - .. row 3
-
- - .. _SEC-VOLTAGE-18:
-
- ``SEC_VOLTAGE_18``
-
- - Set DC voltage level to 18V
-
- - .. row 4
-
- - .. _SEC-VOLTAGE-OFF:
-
- ``SEC_VOLTAGE_OFF``
-
- - Don't send any voltage to the antenna
-
+The acceptable values are defined by :c:type:`fe_sec_voltage`.
.. _DTV-TONE:
@@ -507,50 +215,11 @@ Currently not used.
DTV_PILOT
=========
-Sets DVB-S2 pilot
-
-
-.. c:type:: fe_pilot
-
-fe_pilot type
--------------
-
-
-.. flat-table:: enum fe_pilot
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _PILOT-ON:
-
- ``PILOT_ON``
-
- - Pilot tones enabled
-
- - .. row 3
-
- - .. _PILOT-OFF:
-
- ``PILOT_OFF``
+Used on DVB-S2.
- - Pilot tones disabled
-
- - .. row 4
-
- - .. _PILOT-AUTO:
-
- ``PILOT_AUTO``
-
- - Autodetect pilot tones
+Sets DVB-S2 pilot.
+The acceptable values are defined by :c:type:`fe_pilot`.
.. _DTV-ROLLOFF:
@@ -558,58 +227,11 @@ fe_pilot type
DTV_ROLLOFF
===========
-Sets DVB-S2 rolloff
-
-
-.. c:type:: fe_rolloff
-
-fe_rolloff type
----------------
-
-
-.. flat-table:: enum fe_rolloff
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _ROLLOFF-35:
-
- ``ROLLOFF_35``
+Used on DVB-S2.
- - Roloff factor: α=35%
-
- - .. row 3
-
- - .. _ROLLOFF-20:
-
- ``ROLLOFF_20``
-
- - Roloff factor: α=20%
-
- - .. row 4
-
- - .. _ROLLOFF-25:
-
- ``ROLLOFF_25``
-
- - Roloff factor: α=25%
-
- - .. row 5
-
- - .. _ROLLOFF-AUTO:
-
- ``ROLLOFF_AUTO``
-
- - Auto-detect the roloff factor.
+Sets DVB-S2 rolloff.
+The acceptable values are defined by :c:type:`fe_rolloff`.
.. _DTV-DISEQC-SLAVE-REPLY:
@@ -641,180 +263,9 @@ Currently not implemented.
DTV_DELIVERY_SYSTEM
===================
-Specifies the type of Delivery system
-
-
-.. c:type:: fe_delivery_system
-
-fe_delivery_system type
------------------------
-
-Possible values:
-
-
-.. flat-table:: enum fe_delivery_system
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _SYS-UNDEFINED:
-
- ``SYS_UNDEFINED``
-
- - Undefined standard. Generally, indicates an error
-
- - .. row 3
-
- - .. _SYS-DVBC-ANNEX-A:
-
- ``SYS_DVBC_ANNEX_A``
-
- - Cable TV: DVB-C following ITU-T J.83 Annex A spec
-
- - .. row 4
-
- - .. _SYS-DVBC-ANNEX-B:
-
- ``SYS_DVBC_ANNEX_B``
-
- - Cable TV: DVB-C following ITU-T J.83 Annex B spec (ClearQAM)
-
- - .. row 5
-
- - .. _SYS-DVBC-ANNEX-C:
-
- ``SYS_DVBC_ANNEX_C``
-
- - Cable TV: DVB-C following ITU-T J.83 Annex C spec
-
- - .. row 6
-
- - .. _SYS-ISDBC:
-
- ``SYS_ISDBC``
-
- - Cable TV: ISDB-C (no drivers yet)
-
- - .. row 7
-
- - .. _SYS-DVBT:
-
- ``SYS_DVBT``
-
- - Terrestral TV: DVB-T
-
- - .. row 8
-
- - .. _SYS-DVBT2:
-
- ``SYS_DVBT2``
-
- - Terrestral TV: DVB-T2
-
- - .. row 9
-
- - .. _SYS-ISDBT:
-
- ``SYS_ISDBT``
-
- - Terrestral TV: ISDB-T
-
- - .. row 10
-
- - .. _SYS-ATSC:
-
- ``SYS_ATSC``
-
- - Terrestral TV: ATSC
-
- - .. row 11
-
- - .. _SYS-ATSCMH:
-
- ``SYS_ATSCMH``
-
- - Terrestral TV (mobile): ATSC-M/H
-
- - .. row 12
-
- - .. _SYS-DTMB:
-
- ``SYS_DTMB``
-
- - Terrestrial TV: DTMB
-
- - .. row 13
-
- - .. _SYS-DVBS:
-
- ``SYS_DVBS``
-
- - Satellite TV: DVB-S
-
- - .. row 14
-
- - .. _SYS-DVBS2:
-
- ``SYS_DVBS2``
-
- - Satellite TV: DVB-S2
-
- - .. row 15
-
- - .. _SYS-TURBO:
-
- ``SYS_TURBO``
-
- - Satellite TV: DVB-S Turbo
-
- - .. row 16
-
- - .. _SYS-ISDBS:
-
- ``SYS_ISDBS``
-
- - Satellite TV: ISDB-S
-
- - .. row 17
-
- - .. _SYS-DAB:
-
- ``SYS_DAB``
-
- - Digital audio: DAB (not fully supported)
-
- - .. row 18
-
- - .. _SYS-DSS:
-
- ``SYS_DSS``
-
- - Satellite TV:"DSS (not fully supported)
-
- - .. row 19
-
- - .. _SYS-CMMB:
-
- ``SYS_CMMB``
-
- - Terrestral TV (mobile):CMMB (not fully supported)
-
- - .. row 20
-
- - .. _SYS-DVBH:
-
- ``SYS_DVBH``
-
- - Terrestral TV (mobile): DVB-H (standard deprecated)
+Specifies the type of the delivery system.
+The acceptable values are defined by :c:type:`fe_delivery_system`.
.. _DTV-ISDBT-PARTIAL-RECEPTION:
@@ -822,6 +273,8 @@ Possible values:
DTV_ISDBT_PARTIAL_RECEPTION
===========================
+Used only on ISDB.
+
If ``DTV_ISDBT_SOUND_BROADCASTING`` is '0' this bit-field represents
whether the channel is in partial reception mode or not.
@@ -840,6 +293,8 @@ Possible values: 0, 1, -1 (AUTO)
DTV_ISDBT_SOUND_BROADCASTING
============================
+Used only on ISDB.
+
This field represents whether the other DTV_ISDBT_*-parameters are
referring to an ISDB-T and an ISDB-Tsb channel. (See also
``DTV_ISDBT_PARTIAL_RECEPTION``).
@@ -852,6 +307,8 @@ Possible values: 0, 1, -1 (AUTO)
DTV_ISDBT_SB_SUBCHANNEL_ID
==========================
+Used only on ISDB.
+
This field only applies if ``DTV_ISDBT_SOUND_BROADCASTING`` is '1'.
(Note of the author: This might not be the correct description of the
@@ -887,6 +344,8 @@ Possible values: 0 .. 41, -1 (AUTO)
DTV_ISDBT_SB_SEGMENT_IDX
========================
+Used only on ISDB.
+
This field only applies if ``DTV_ISDBT_SOUND_BROADCASTING`` is '1'.
``DTV_ISDBT_SB_SEGMENT_IDX`` gives the index of the segment to be
@@ -903,6 +362,8 @@ Note: This value cannot be determined by an automatic channel search.
DTV_ISDBT_SB_SEGMENT_COUNT
==========================
+Used only on ISDB.
+
This field only applies if ``DTV_ISDBT_SOUND_BROADCASTING`` is '1'.
``DTV_ISDBT_SB_SEGMENT_COUNT`` gives the total count of connected
@@ -918,6 +379,8 @@ Note: This value cannot be determined by an automatic channel search.
DTV-ISDBT-LAYER[A-C] parameters
===============================
+Used only on ISDB.
+
ISDB-T channels can be coded hierarchically. As opposed to DVB-T in
ISDB-T hierarchical layers can be decoded simultaneously. For that
reason a ISDB-T demodulator has 3 Viterbi and 3 Reed-Solomon decoders.
@@ -934,6 +397,8 @@ There are 3 parameter sets, for Layers A, B and C.
DTV_ISDBT_LAYER_ENABLED
-----------------------
+Used only on ISDB.
+
Hierarchical reception in ISDB-T is achieved by enabling or disabling
layers in the decoding process. Setting all bits of
``DTV_ISDBT_LAYER_ENABLED`` to '1' forces all layers (if applicable) to
@@ -964,7 +429,13 @@ Only the values of the first 3 bits are used. Other bits will be silently ignore
DTV_ISDBT_LAYER[A-C]_FEC
------------------------
-Possible values: ``FEC_AUTO``, ``FEC_1_2``, ``FEC_2_3``, ``FEC_3_4``,
+Used only on ISDB.
+
+The Forward Error Correction mechanism used by a given ISDB Layer, as
+defined by :c:type:`fe_code_rate`.
+
+
+Possible values are: ``FEC_AUTO``, ``FEC_1_2``, ``FEC_2_3``, ``FEC_3_4``,
``FEC_5_6``, ``FEC_7_8``
@@ -973,11 +444,19 @@ Possible values: ``FEC_AUTO``, ``FEC_1_2``, ``FEC_2_3``, ``FEC_3_4``,
DTV_ISDBT_LAYER[A-C]_MODULATION
-------------------------------
-Possible values: ``QAM_AUTO``, QP\ ``SK, QAM_16``, ``QAM_64``, ``DQPSK``
+Used only on ISDB.
+
+The modulation used by a given ISDB Layer, as defined by
+:c:type:`fe_modulation`.
-Note: If layer C is ``DQPSK`` layer B has to be ``DQPSK``. If layer B is
-``DQPSK`` and ``DTV_ISDBT_PARTIAL_RECEPTION``\ =0 layer has to be
-``DQPSK``.
+Possible values are: ``QAM_AUTO``, ``QPSK``, ``QAM_16``, ``QAM_64``, ``DQPSK``
+
+.. note::
+
+ #. If layer C is ``DQPSK``, then layer B has to be ``DQPSK``.
+
+ #. If layer B is ``DQPSK`` and ``DTV_ISDBT_PARTIAL_RECEPTION``\ = 0,
+ then layer has to be ``DQPSK``.
.. _DTV-ISDBT-LAYER-SEGMENT-COUNT:
@@ -985,6 +464,8 @@ Note: If layer C is ``DQPSK`` layer B has to be ``DQPSK``. If layer B is
DTV_ISDBT_LAYER[A-C]_SEGMENT_COUNT
----------------------------------
+Used only on ISDB.
+
Possible values: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, -1 (AUTO)
Note: Truth table for ``DTV_ISDBT_SOUND_BROADCASTING`` and
@@ -993,15 +474,15 @@ Note: Truth table for ``DTV_ISDBT_SOUND_BROADCASTING`` and
.. _isdbt-layer_seg-cnt-table:
.. flat-table:: Truth table for ISDB-T Sound Broadcasting
- :header-rows: 0
+ :header-rows: 1
:stub-columns: 0
- .. row 1
- - PR
+ - Partial Reception
- - SB
+ - Sound Broadcasting
- Layer A width
@@ -1074,6 +555,8 @@ Note: Truth table for ``DTV_ISDBT_SOUND_BROADCASTING`` and
DTV_ISDBT_LAYER[A-C]_TIME_INTERLEAVING
--------------------------------------
+Used only on ISDB.
+
Valid values: 0, 1, 2, 4, -1 (AUTO)
when DTV_ISDBT_SOUND_BROADCASTING is active, value 8 is also valid.
@@ -1086,7 +569,7 @@ TMCC-structure, as shown in the table below.
.. c:type:: isdbt_layer_interleaving_table
.. flat-table:: ISDB-T time interleaving modes
- :header-rows: 0
+ :header-rows: 1
:stub-columns: 0
@@ -1147,6 +630,8 @@ TMCC-structure, as shown in the table below.
DTV_ATSCMH_FIC_VER
------------------
+Used only on ATSC-MH.
+
Version number of the FIC (Fast Information Channel) signaling data.
FIC is used for relaying information to allow rapid service acquisition
@@ -1160,6 +645,8 @@ Possible values: 0, 1, 2, 3, ..., 30, 31
DTV_ATSCMH_PARADE_ID
--------------------
+Used only on ATSC-MH.
+
Parade identification number
A parade is a collection of up to eight MH groups, conveying one or two
@@ -1173,6 +660,8 @@ Possible values: 0, 1, 2, 3, ..., 126, 127
DTV_ATSCMH_NOG
--------------
+Used only on ATSC-MH.
+
Number of MH groups per MH subframe for a designated parade.
Possible values: 1, 2, 3, 4, 5, 6, 7, 8
@@ -1183,6 +672,8 @@ Possible values: 1, 2, 3, 4, 5, 6, 7, 8
DTV_ATSCMH_TNOG
---------------
+Used only on ATSC-MH.
+
Total number of MH groups including all MH groups belonging to all MH
parades in one MH subframe.
@@ -1194,6 +685,8 @@ Possible values: 0, 1, 2, 3, ..., 30, 31
DTV_ATSCMH_SGN
--------------
+Used only on ATSC-MH.
+
Start group number.
Possible values: 0, 1, 2, 3, ..., 14, 15
@@ -1204,6 +697,8 @@ Possible values: 0, 1, 2, 3, ..., 14, 15
DTV_ATSCMH_PRC
--------------
+Used only on ATSC-MH.
+
Parade repetition cycle.
Possible values: 1, 2, 3, 4, 5, 6, 7, 8
@@ -1214,44 +709,11 @@ Possible values: 1, 2, 3, 4, 5, 6, 7, 8
DTV_ATSCMH_RS_FRAME_MODE
------------------------
-Reed Solomon (RS) frame mode.
-
-Possible values are:
-
-.. tabularcolumns:: |p{5.0cm}|p{12.5cm}|
-
-.. c:type:: atscmh_rs_frame_mode
-
-.. flat-table:: enum atscmh_rs_frame_mode
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _ATSCMH-RSFRAME-PRI-ONLY:
-
- ``ATSCMH_RSFRAME_PRI_ONLY``
-
- - Single Frame: There is only a primary RS Frame for all Group
- Regions.
-
- - .. row 3
-
- - .. _ATSCMH-RSFRAME-PRI-SEC:
-
- ``ATSCMH_RSFRAME_PRI_SEC``
+Used only on ATSC-MH.
- - Dual Frame: There are two separate RS Frames: Primary RS Frame for
- Group Region A and B and Secondary RS Frame for Group Region C and
- D.
+Reed Solomon (RS) frame mode.
+The acceptable values are defined by :c:type:`atscmh_rs_frame_mode`.
.. _DTV-ATSCMH-RS-FRAME-ENSEMBLE:
@@ -1259,48 +721,11 @@ Possible values are:
DTV_ATSCMH_RS_FRAME_ENSEMBLE
----------------------------
-Reed Solomon(RS) frame ensemble.
-
-Possible values are:
-
-
-.. c:type:: atscmh_rs_frame_ensemble
-
-.. flat-table:: enum atscmh_rs_frame_ensemble
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _ATSCMH-RSFRAME-ENS-PRI:
-
- ``ATSCMH_RSFRAME_ENS_PRI``
-
- - Primary Ensemble.
-
- - .. row 3
-
- - .. _ATSCMH-RSFRAME-ENS-SEC:
-
- ``AATSCMH_RSFRAME_PRI_SEC``
-
- - Secondary Ensemble.
-
- - .. row 4
-
- - .. _ATSCMH-RSFRAME-RES:
+Used only on ATSC-MH.
- ``AATSCMH_RSFRAME_RES``
-
- - Reserved. Shouldn't be used.
+Reed Solomon(RS) frame ensemble.
+The acceptable values are defined by :c:type:`atscmh_rs_frame_ensemble`.
.. _DTV-ATSCMH-RS-CODE-MODE-PRI:
@@ -1308,56 +733,11 @@ Possible values are:
DTV_ATSCMH_RS_CODE_MODE_PRI
---------------------------
-Reed Solomon (RS) code mode (primary).
-
-Possible values are:
-
-
-.. c:type:: atscmh_rs_code_mode
-
-.. flat-table:: enum atscmh_rs_code_mode
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _ATSCMH-RSCODE-211-187:
-
- ``ATSCMH_RSCODE_211_187``
-
- - Reed Solomon code (211,187).
-
- - .. row 3
-
- - .. _ATSCMH-RSCODE-223-187:
-
- ``ATSCMH_RSCODE_223_187``
-
- - Reed Solomon code (223,187).
-
- - .. row 4
-
- - .. _ATSCMH-RSCODE-235-187:
+Used only on ATSC-MH.
- ``ATSCMH_RSCODE_235_187``
-
- - Reed Solomon code (235,187).
-
- - .. row 5
-
- - .. _ATSCMH-RSCODE-RES:
-
- ``ATSCMH_RSCODE_RES``
-
- - Reserved. Shouldn't be used.
+Reed Solomon (RS) code mode (primary).
+The acceptable values are defined by :c:type:`atscmh_rs_code_mode`.
.. _DTV-ATSCMH-RS-CODE-MODE-SEC:
@@ -1365,10 +745,11 @@ Possible values are:
DTV_ATSCMH_RS_CODE_MODE_SEC
---------------------------
+Used only on ATSC-MH.
+
Reed Solomon (RS) code mode (secondary).
-Possible values are the same as documented on enum
-:c:type:`atscmh_rs_code_mode`:
+The acceptable values are defined by :c:type:`atscmh_rs_code_mode`.
.. _DTV-ATSCMH-SCCC-BLOCK-MODE:
@@ -1376,51 +757,11 @@ Possible values are the same as documented on enum
DTV_ATSCMH_SCCC_BLOCK_MODE
--------------------------
-Series Concatenated Convolutional Code Block Mode.
-
-Possible values are:
-
-.. tabularcolumns:: |p{4.5cm}|p{13.0cm}|
-
-.. c:type:: atscmh_sccc_block_mode
-
-.. flat-table:: enum atscmh_scc_block_mode
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _ATSCMH-SCCC-BLK-SEP:
-
- ``ATSCMH_SCCC_BLK_SEP``
-
- - Separate SCCC: the SCCC outer code mode shall be set independently
- for each Group Region (A, B, C, D)
-
- - .. row 3
-
- - .. _ATSCMH-SCCC-BLK-COMB:
-
- ``ATSCMH_SCCC_BLK_COMB``
-
- - Combined SCCC: all four Regions shall have the same SCCC outer
- code mode.
-
- - .. row 4
-
- - .. _ATSCMH-SCCC-BLK-RES:
-
- ``ATSCMH_SCCC_BLK_RES``
+Used only on ATSC-MH.
- - Reserved. Shouldn't be used.
+Series Concatenated Convolutional Code Block Mode.
+The acceptable values are defined by :c:type:`atscmh_sccc_block_mode`.
.. _DTV-ATSCMH-SCCC-CODE-MODE-A:
@@ -1428,55 +769,19 @@ Possible values are:
DTV_ATSCMH_SCCC_CODE_MODE_A
---------------------------
-Series Concatenated Convolutional Code Rate.
-
-Possible values are:
-
-
-.. c:type:: atscmh_sccc_code_mode
-
-.. flat-table:: enum atscmh_sccc_code_mode
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _ATSCMH-SCCC-CODE-HLF:
-
- ``ATSCMH_SCCC_CODE_HLF``
-
- - The outer code rate of a SCCC Block is 1/2 rate.
-
- - .. row 3
-
- - .. _ATSCMH-SCCC-CODE-QTR:
-
- ``ATSCMH_SCCC_CODE_QTR``
-
- - The outer code rate of a SCCC Block is 1/4 rate.
-
- - .. row 4
-
- - .. _ATSCMH-SCCC-CODE-RES:
-
- ``ATSCMH_SCCC_CODE_RES``
-
- - to be documented.
+Used only on ATSC-MH.
+Series Concatenated Convolutional Code Rate.
+The acceptable values are defined by :c:type:`atscmh_sccc_code_mode`.
.. _DTV-ATSCMH-SCCC-CODE-MODE-B:
DTV_ATSCMH_SCCC_CODE_MODE_B
---------------------------
+Used only on ATSC-MH.
+
Series Concatenated Convolutional Code Rate.
Possible values are the same as documented on enum
@@ -1488,6 +793,8 @@ Possible values are the same as documented on enum
DTV_ATSCMH_SCCC_CODE_MODE_C
---------------------------
+Used only on ATSC-MH.
+
Series Concatenated Convolutional Code Rate.
Possible values are the same as documented on enum
@@ -1499,6 +806,8 @@ Possible values are the same as documented on enum
DTV_ATSCMH_SCCC_CODE_MODE_D
---------------------------
+Used only on ATSC-MH.
+
Series Concatenated Convolutional Code Rate.
Possible values are the same as documented on enum
@@ -1510,7 +819,7 @@ Possible values are the same as documented on enum
DTV_API_VERSION
===============
-Returns the major/minor version of the DVB API
+Returns the major/minor version of the Digital TV API
.. _DTV-CODE-RATE-HP:
@@ -1518,8 +827,9 @@ Returns the major/minor version of the DVB API
DTV_CODE_RATE_HP
================
-Used on terrestrial transmissions. The acceptable values are the ones
-described at :c:type:`fe_transmit_mode`.
+Used on terrestrial transmissions.
+
+The acceptable values are defined by :c:type:`fe_transmit_mode`.
.. _DTV-CODE-RATE-LP:
@@ -1527,8 +837,9 @@ described at :c:type:`fe_transmit_mode`.
DTV_CODE_RATE_LP
================
-Used on terrestrial transmissions. The acceptable values are the ones
-described at :c:type:`fe_transmit_mode`.
+Used on terrestrial transmissions.
+
+The acceptable values are defined by :c:type:`fe_transmit_mode`.
.. _DTV-GUARD-INTERVAL:
@@ -1536,242 +847,56 @@ described at :c:type:`fe_transmit_mode`.
DTV_GUARD_INTERVAL
==================
-Possible values are:
-
-
-.. c:type:: fe_guard_interval
-
-Modulation guard interval
--------------------------
-
-
-.. flat-table:: enum fe_guard_interval
- :header-rows: 1
- :stub-columns: 0
-
+The acceptable values are defined by :c:type:`fe_guard_interval`.
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _GUARD-INTERVAL-AUTO:
-
- ``GUARD_INTERVAL_AUTO``
-
- - Autodetect the guard interval
-
- - .. row 3
-
- - .. _GUARD-INTERVAL-1-128:
-
- ``GUARD_INTERVAL_1_128``
-
- - Guard interval 1/128
-
- - .. row 4
-
- - .. _GUARD-INTERVAL-1-32:
-
- ``GUARD_INTERVAL_1_32``
-
- - Guard interval 1/32
-
- - .. row 5
-
- - .. _GUARD-INTERVAL-1-16:
-
- ``GUARD_INTERVAL_1_16``
-
- - Guard interval 1/16
-
- - .. row 6
-
- - .. _GUARD-INTERVAL-1-8:
-
- ``GUARD_INTERVAL_1_8``
-
- - Guard interval 1/8
-
- - .. row 7
-
- - .. _GUARD-INTERVAL-1-4:
-
- ``GUARD_INTERVAL_1_4``
-
- - Guard interval 1/4
-
- - .. row 8
-
- - .. _GUARD-INTERVAL-19-128:
-
- ``GUARD_INTERVAL_19_128``
-
- - Guard interval 19/128
-
- - .. row 9
-
- - .. _GUARD-INTERVAL-19-256:
-
- ``GUARD_INTERVAL_19_256``
-
- - Guard interval 19/256
-
- - .. row 10
-
- - .. _GUARD-INTERVAL-PN420:
-
- ``GUARD_INTERVAL_PN420``
-
- - PN length 420 (1/4)
-
- - .. row 11
-
- - .. _GUARD-INTERVAL-PN595:
-
- ``GUARD_INTERVAL_PN595``
-
- - PN length 595 (1/6)
-
- - .. row 12
-
- - .. _GUARD-INTERVAL-PN945:
-
- ``GUARD_INTERVAL_PN945``
-
- - PN length 945 (1/9)
-
-
-Notes:
-
-1) If ``DTV_GUARD_INTERVAL`` is set the ``GUARD_INTERVAL_AUTO`` the
-hardware will try to find the correct guard interval (if capable) and
-will use TMCC to fill in the missing parameters.
-
-2) Intervals 1/128, 19/128 and 19/256 are used only for DVB-T2 at
-present
-
-3) DTMB specifies PN420, PN595 and PN945.
+.. note::
+ #. If ``DTV_GUARD_INTERVAL`` is set the ``GUARD_INTERVAL_AUTO`` the
+ hardware will try to find the correct guard interval (if capable) and
+ will use TMCC to fill in the missing parameters.
+ #. Intervals ``GUARD_INTERVAL_1_128``, ``GUARD_INTERVAL_19_128``
+ and ``GUARD_INTERVAL_19_256`` are used only for DVB-T2 at
+ present.
+ #. Intervals ``GUARD_INTERVAL_PN420``, ``GUARD_INTERVAL_PN595`` and
+ ``GUARD_INTERVAL_PN945`` are used only for DMTB at the present.
+ On such standard, only those intervals and ``GUARD_INTERVAL_AUTO``
+ are valid.
.. _DTV-TRANSMISSION-MODE:
DTV_TRANSMISSION_MODE
=====================
-Specifies the number of carriers used by the standard. This is used only
-on OFTM-based standards, e. g. DVB-T/T2, ISDB-T, DTMB
-
-
-.. c:type:: fe_transmit_mode
-
-enum fe_transmit_mode: Number of carriers per channel
------------------------------------------------------
-
-.. tabularcolumns:: |p{5.0cm}|p{12.5cm}|
-
-.. flat-table:: enum fe_transmit_mode
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _TRANSMISSION-MODE-AUTO:
-
- ``TRANSMISSION_MODE_AUTO``
-
- - Autodetect transmission mode. The hardware will try to find the
- correct FFT-size (if capable) to fill in the missing parameters.
-
- - .. row 3
-
- - .. _TRANSMISSION-MODE-1K:
-
- ``TRANSMISSION_MODE_1K``
-
- - Transmission mode 1K
-
- - .. row 4
-
- - .. _TRANSMISSION-MODE-2K:
-
- ``TRANSMISSION_MODE_2K``
-
- - Transmission mode 2K
-
- - .. row 5
-
- - .. _TRANSMISSION-MODE-8K:
-
- ``TRANSMISSION_MODE_8K``
- - Transmission mode 8K
+Used only on OFTM-based standards, e. g. DVB-T/T2, ISDB-T, DTMB.
- - .. row 6
+Specifies the FFT size (with corresponds to the approximate number of
+carriers) used by the standard.
- - .. _TRANSMISSION-MODE-4K:
-
- ``TRANSMISSION_MODE_4K``
-
- - Transmission mode 4K
-
- - .. row 7
-
- - .. _TRANSMISSION-MODE-16K:
-
- ``TRANSMISSION_MODE_16K``
-
- - Transmission mode 16K
-
- - .. row 8
-
- - .. _TRANSMISSION-MODE-32K:
-
- ``TRANSMISSION_MODE_32K``
-
- - Transmission mode 32K
-
- - .. row 9
-
- - .. _TRANSMISSION-MODE-C1:
-
- ``TRANSMISSION_MODE_C1``
-
- - Single Carrier (C=1) transmission mode (DTMB)
-
- - .. row 10
-
- - .. _TRANSMISSION-MODE-C3780:
-
- ``TRANSMISSION_MODE_C3780``
-
- - Multi Carrier (C=3780) transmission mode (DTMB)
+The acceptable values are defined by :c:type:`fe_transmit_mode`.
+.. note::
-Notes:
+ #. ISDB-T supports three carrier/symbol-size: 8K, 4K, 2K. It is called
+ **mode** on such standard, and are numbered from 1 to 3:
-1) ISDB-T supports three carrier/symbol-size: 8K, 4K, 2K. It is called
-'mode' in the standard: Mode 1 is 2K, mode 2 is 4K, mode 3 is 8K
+ ==== ======== ========================
+ Mode FFT size Transmission mode
+ ==== ======== ========================
+ 1 2K ``TRANSMISSION_MODE_2K``
+ 2 4K ``TRANSMISSION_MODE_4K``
+ 3 8K ``TRANSMISSION_MODE_8K``
+ ==== ======== ========================
-2) If ``DTV_TRANSMISSION_MODE`` is set the ``TRANSMISSION_MODE_AUTO``
-the hardware will try to find the correct FFT-size (if capable) and will
-use TMCC to fill in the missing parameters.
+ #. If ``DTV_TRANSMISSION_MODE`` is set the ``TRANSMISSION_MODE_AUTO``
+ the hardware will try to find the correct FFT-size (if capable) and
+ will use TMCC to fill in the missing parameters.
-3) DVB-T specifies 2K and 8K as valid sizes.
+ #. DVB-T specifies 2K and 8K as valid sizes.
-4) DVB-T2 specifies 1K, 2K, 4K, 8K, 16K and 32K.
+ #. DVB-T2 specifies 1K, 2K, 4K, 8K, 16K and 32K.
-5) DTMB specifies C1 and C3780.
+ #. DTMB specifies C1 and C3780.
.. _DTV-HIERARCHY:
@@ -1779,66 +904,11 @@ use TMCC to fill in the missing parameters.
DTV_HIERARCHY
=============
-Frontend hierarchy
-
-
-.. c:type:: fe_hierarchy
-
-Frontend hierarchy
-------------------
-
-
-.. flat-table:: enum fe_hierarchy
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _HIERARCHY-NONE:
-
- ``HIERARCHY_NONE``
-
- - No hierarchy
-
- - .. row 3
-
- - .. _HIERARCHY-AUTO:
-
- ``HIERARCHY_AUTO``
-
- - Autodetect hierarchy (if supported)
-
- - .. row 4
+Used only on DVB-T and DVB-T2.
- - .. _HIERARCHY-1:
-
- ``HIERARCHY_1``
-
- - Hierarchy 1
-
- - .. row 5
-
- - .. _HIERARCHY-2:
-
- ``HIERARCHY_2``
-
- - Hierarchy 2
-
- - .. row 6
-
- - .. _HIERARCHY-4:
-
- ``HIERARCHY_4``
-
- - Hierarchy 4
+Frontend hierarchy.
+The acceptable values are defined by :c:type:`fe_hierarchy`.
.. _DTV-STREAM-ID:
@@ -1846,8 +916,10 @@ Frontend hierarchy
DTV_STREAM_ID
=============
+Used on DVB-S2, DVB-T2 and ISDB-S.
+
DVB-S2, DVB-T2 and ISDB-S support the transmission of several streams on
-a single transport stream. This property enables the DVB driver to
+a single transport stream. This property enables the digital TV driver to
handle substream filtering, when supported by the hardware. By default,
substream filtering is disabled.
@@ -1884,60 +956,17 @@ with it, rather than trying to use FE_GET_INFO. In the case of a
legacy frontend, the result is just the same as with FE_GET_INFO, but
in a more structured format
+The acceptable values are defined by :c:type:`fe_delivery_system`.
+
.. _DTV-INTERLEAVING:
DTV_INTERLEAVING
================
-Time interleaving to be used. Currently, used only on DTMB.
-
-
-.. c:type:: fe_interleaving
-
-.. flat-table:: enum fe_interleaving
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - .. _INTERLEAVING-NONE:
-
- ``INTERLEAVING_NONE``
-
- - No interleaving.
-
- - .. row 3
-
- - .. _INTERLEAVING-AUTO:
-
- ``INTERLEAVING_AUTO``
-
- - Auto-detect interleaving.
-
- - .. row 4
-
- - .. _INTERLEAVING-240:
-
- ``INTERLEAVING_240``
-
- - Interleaving of 240 symbols.
-
- - .. row 5
-
- - .. _INTERLEAVING-720:
-
- ``INTERLEAVING_720``
-
- - Interleaving of 720 symbols.
+Time interleaving to be used.
+The acceptable values are defined by :c:type:`fe_interleaving`.
.. _DTV-LNA:
diff --git a/Documentation/media/uapi/dvb/frontend-header.rst b/Documentation/media/uapi/dvb/frontend-header.rst
new file mode 100644
index 000000000000..8d8433cf1e12
--- /dev/null
+++ b/Documentation/media/uapi/dvb/frontend-header.rst
@@ -0,0 +1,4 @@
+Frontend uAPI data types
+========================
+
+.. kernel-doc:: include/uapi/linux/dvb/frontend.h
diff --git a/Documentation/media/uapi/dvb/frontend-property-terrestrial-systems.rst b/Documentation/media/uapi/dvb/frontend-property-terrestrial-systems.rst
index dbc717cad9ee..0beb5cb3d729 100644
--- a/Documentation/media/uapi/dvb/frontend-property-terrestrial-systems.rst
+++ b/Documentation/media/uapi/dvb/frontend-property-terrestrial-systems.rst
@@ -100,7 +100,7 @@ to tune any ISDB-T/ISDB-Tsb hardware. Of course it is possible that some
very sophisticated devices won't need certain parameters to tune.
The information given here should help application writers to know how
-to handle ISDB-T and ISDB-Tsb hardware using the Linux DVB-API.
+to handle ISDB-T and ISDB-Tsb hardware using the Linux Digital TV API.
The details given here about ISDB-T and ISDB-Tsb are just enough to
basically show the dependencies between the needed parameter values, but
diff --git a/Documentation/media/uapi/dvb/frontend.rst b/Documentation/media/uapi/dvb/frontend.rst
index e051a9012540..4967c48d46ce 100644
--- a/Documentation/media/uapi/dvb/frontend.rst
+++ b/Documentation/media/uapi/dvb/frontend.rst
@@ -2,20 +2,22 @@
.. _dvb_frontend:
-################
-DVB Frontend API
-################
-The DVB frontend API was designed to support three types of delivery
-systems:
+#######################
+Digital TV Frontend API
+#######################
+
+The Digital TV frontend API was designed to support three groups of delivery
+systems: Terrestrial, cable and Satellite. Currently, the following
+delivery systems are supported:
- Terrestrial systems: DVB-T, DVB-T2, ATSC, ATSC M/H, ISDB-T, DVB-H,
DTMB, CMMB
-- Cable systems: DVB-C Annex A/C, ClearQAM (DVB-C Annex B), ISDB-C
+- Cable systems: DVB-C Annex A/C, ClearQAM (DVB-C Annex B)
- Satellite systems: DVB-S, DVB-S2, DVB Turbo, ISDB-S, DSS
-The DVB frontend controls several sub-devices including:
+The Digital TV frontend controls several sub-devices including:
- Tuner
@@ -23,7 +25,7 @@ The DVB frontend controls several sub-devices including:
- Low noise amplifier (LNA)
-- Satellite Equipment Control (SEC) hardware (only for Satellite).
+- Satellite Equipment Control (SEC) [#f1]_.
The frontend can be accessed through ``/dev/dvb/adapter?/frontend?``.
Data types and ioctl definitions can be accessed by including
@@ -31,16 +33,18 @@ Data types and ioctl definitions can be accessed by including
.. note::
- Transmission via the internet (DVB-IP) is not yet handled by this
- API but a future extension is possible.
+ Transmission via the internet (DVB-IP) and MMT (MPEG Media Transport)
+ is not yet handled by this API but a future extension is possible.
+
+.. [#f1]
-On Satellite systems, the API support for the Satellite Equipment
-Control (SEC) allows to power control and to send/receive signals to
-control the antenna subsystem, selecting the polarization and choosing
-the Intermediate Frequency IF) of the Low Noise Block Converter Feed
-Horn (LNBf). It supports the DiSEqC and V-SEC protocols. The DiSEqC
-(digital SEC) specification is available at
-`Eutelsat <http://www.eutelsat.com/satellites/4_5_5.html>`__.
+ On Satellite systems, the API support for the Satellite Equipment
+ Control (SEC) allows to power control and to send/receive signals to
+ control the antenna subsystem, selecting the polarization and choosing
+ the Intermediate Frequency IF) of the Low Noise Block Converter Feed
+ Horn (LNBf). It supports the DiSEqC and V-SEC protocols. The DiSEqC
+ (digital SEC) specification is available at
+ `Eutelsat <http://www.eutelsat.com/satellites/4_5_5.html>`__.
.. toctree::
@@ -50,4 +54,3 @@ Horn (LNBf). It supports the DiSEqC and V-SEC protocols. The DiSEqC
dvb-fe-read-status
dvbproperty
frontend_fcalls
- frontend_legacy_dvbv3_api
diff --git a/Documentation/media/uapi/dvb/frontend_f_close.rst b/Documentation/media/uapi/dvb/frontend_f_close.rst
index f3b04b60246c..67958d73cf34 100644
--- a/Documentation/media/uapi/dvb/frontend_f_close.rst
+++ b/Documentation/media/uapi/dvb/frontend_f_close.rst
@@ -2,9 +2,9 @@
.. _frontend_f_close:
-********************
-DVB frontend close()
-********************
+***************************
+Digital TV frontend close()
+***************************
Name
====
@@ -41,8 +41,10 @@ down automatically.
Return Value
============
-The function returns 0 on success, -1 on failure and the ``errno`` is
-set appropriately. Possible error codes:
+On success 0 is returned.
-EBADF
- ``fd`` is not a valid open file descriptor.
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+Generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/frontend_f_open.rst b/Documentation/media/uapi/dvb/frontend_f_open.rst
index 690eb375bdc1..8e8cb466c24b 100644
--- a/Documentation/media/uapi/dvb/frontend_f_open.rst
+++ b/Documentation/media/uapi/dvb/frontend_f_open.rst
@@ -2,9 +2,9 @@
.. _frontend_f_open:
-*******************
-DVB frontend open()
-*******************
+***************************
+Digital TV frontend open()
+***************************
Name
====
@@ -79,24 +79,32 @@ On error, -1 is returned, and the ``errno`` variable is set appropriately.
Possible error codes are:
-EACCES
- The caller has no permission to access the device.
-EBUSY
- The the device driver is already in use.
+On success 0 is returned, and :c:type:`ca_slot_info` is filled.
-ENXIO
- No device corresponding to this device special file exists.
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
-ENOMEM
- Not enough kernel memory was available to complete the request.
+.. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
-EMFILE
- The process already has the maximum number of files open.
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 16
-ENFILE
- The limit on the total number of files open on the system has been
- reached.
+ - - ``EPERM``
+ - The caller has no permission to access the device.
-ENODEV
- The device got removed.
+ - - ``EBUSY``
+ - The the device driver is already in use.
+
+ - - ``EMFILE``
+ - The process already has the maximum number of files open.
+
+ - - ``ENFILE``
+ - The limit on the total number of files open on the system has been
+ reached.
+
+
+The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/frontend_h.rst b/Documentation/media/uapi/dvb/frontend_h.rst
deleted file mode 100644
index 15fca04d1c32..000000000000
--- a/Documentation/media/uapi/dvb/frontend_h.rst
+++ /dev/null
@@ -1,9 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-.. _frontend_h:
-
-************************
-DVB Frontend Header File
-************************
-
-.. kernel-include:: $BUILDDIR/frontend.h.rst
diff --git a/Documentation/media/uapi/dvb/frontend_legacy_dvbv3_api.rst b/Documentation/media/uapi/dvb/frontend_legacy_dvbv3_api.rst
index 7d4a091b7d7f..a4d5319cb76b 100644
--- a/Documentation/media/uapi/dvb/frontend_legacy_dvbv3_api.rst
+++ b/Documentation/media/uapi/dvb/frontend_legacy_dvbv3_api.rst
@@ -2,9 +2,9 @@
.. _frontend_legacy_dvbv3_api:
-****************************************
-DVB Frontend legacy API (a. k. a. DVBv3)
-****************************************
+***********************************************
+Digital TV Frontend legacy API (a. k. a. DVBv3)
+***********************************************
The usage of this API is deprecated, as it doesn't support all digital
TV standards, doesn't provide good statistics measurements and provides
diff --git a/Documentation/media/uapi/dvb/headers.rst b/Documentation/media/uapi/dvb/headers.rst
new file mode 100644
index 000000000000..c13fd537fbff
--- /dev/null
+++ b/Documentation/media/uapi/dvb/headers.rst
@@ -0,0 +1,21 @@
+****************************
+Digital TV uAPI header files
+****************************
+
+Digital TV uAPI headers
+***********************
+
+.. kernel-include:: $BUILDDIR/frontend.h.rst
+
+.. kernel-include:: $BUILDDIR/dmx.h.rst
+
+.. kernel-include:: $BUILDDIR/ca.h.rst
+
+.. kernel-include:: $BUILDDIR/net.h.rst
+
+Legacy uAPI
+***********
+
+.. kernel-include:: $BUILDDIR/audio.h.rst
+
+.. kernel-include:: $BUILDDIR/video.h.rst
diff --git a/Documentation/media/uapi/dvb/intro.rst b/Documentation/media/uapi/dvb/intro.rst
index 652c4aacd2c6..79b4d0e4e920 100644
--- a/Documentation/media/uapi/dvb/intro.rst
+++ b/Documentation/media/uapi/dvb/intro.rst
@@ -13,15 +13,18 @@ What you need to know
=====================
The reader of this document is required to have some knowledge in the
-area of digital video broadcasting (DVB) and should be familiar with
+area of digital video broadcasting (Digital TV) and should be familiar with
part I of the MPEG2 specification ISO/IEC 13818 (aka ITU-T H.222), i.e
you should know what a program/transport stream (PS/TS) is and what is
meant by a packetized elementary stream (PES) or an I-frame.
-Various DVB standards documents are available from http://www.dvb.org
-and/or http://www.etsi.org.
+Various Digital TV standards documents are available for download at:
-It is also necessary to know how to access unix/linux devices and how to
+- European standards (DVB): http://www.dvb.org and/or http://www.etsi.org.
+- American standards (ATSC): https://www.atsc.org/standards/
+- Japanese standards (ISDB): http://www.dibeg.org/
+
+It is also necessary to know how to access Linux devices and how to
use ioctl calls. This also includes the knowledge of C or C++.
@@ -30,21 +33,25 @@ use ioctl calls. This also includes the knowledge of C or C++.
History
=======
-The first API for DVB cards we used at Convergence in late 1999 was an
+The first API for Digital TV cards we used at Convergence in late 1999 was an
extension of the Video4Linux API which was primarily developed for frame
-grabber cards. As such it was not really well suited to be used for DVB
-cards and their new features like recording MPEG streams and filtering
+grabber cards. As such it was not really well suited to be used for Digital
+TV cards and their new features like recording MPEG streams and filtering
several section and PES data streams at the same time.
-In early 2000, we were approached by Nokia with a proposal for a new
-standard Linux DVB API. As a commitment to the development of terminals
+In early 2000, Convergence was approached by Nokia with a proposal for a new
+standard Linux Digital TV API. As a commitment to the development of terminals
based on open standards, Nokia and Convergence made it available to all
Linux developers and published it on https://linuxtv.org in September
-2000. Convergence is the maintainer of the Linux DVB API. Together with
-the LinuxTV community (i.e. you, the reader of this document), the Linux
-DVB API will be constantly reviewed and improved. With the Linux driver
-for the Siemens/Hauppauge DVB PCI card Convergence provides a first
-implementation of the Linux DVB API.
+2000. With the Linux driver for the Siemens/Hauppauge DVB PCI card,
+Convergence provided a first implementation of the Linux Digital TV API.
+Convergence was the maintainer of the Linux Digital TV API in the early
+days.
+
+Now, the API is maintained by the LinuxTV community (i.e. you, the reader
+of this document). The Linux Digital TV API is constantly reviewed and
+improved together with the improvements at the subsystem's core at the
+Kernel.
.. _overview:
@@ -59,61 +66,65 @@ Overview
:alt: dvbstb.svg
:align: center
- Components of a DVB card/STB
+ Components of a Digital TV card/STB
-A DVB PCI card or DVB set-top-box (STB) usually consists of the
+A Digital TV card or set-top-box (STB) usually consists of the
following main hardware components:
-- Frontend consisting of tuner and DVB demodulator
-
- Here the raw signal reaches the DVB hardware from a satellite dish or
+Frontend consisting of tuner and digital TV demodulator
+ Here the raw signal reaches the digital TV hardware from a satellite dish or
antenna or directly from cable. The frontend down-converts and
demodulates this signal into an MPEG transport stream (TS). In case
of a satellite frontend, this includes a facility for satellite
equipment control (SEC), which allows control of LNB polarization,
multi feed switches or dish rotors.
-- Conditional Access (CA) hardware like CI adapters and smartcard slots
-
+Conditional Access (CA) hardware like CI adapters and smartcard slots
The complete TS is passed through the CA hardware. Programs to which
the user has access (controlled by the smart card) are decoded in
real time and re-inserted into the TS.
-- Demultiplexer which filters the incoming DVB stream
+ .. note::
+ Not every digital TV hardware provides conditional access hardware.
+
+Demultiplexer which filters the incoming Digital TV MPEG-TS stream
The demultiplexer splits the TS into its components like audio and
video streams. Besides usually several of such audio and video
streams it also contains data streams with information about the
programs offered in this or other streams of the same provider.
-- MPEG2 audio and video decoder
+Audio and video decoder
+ The main targets of the demultiplexer are audio and video
+ decoders. After decoding, they pass on the uncompressed audio and
+ video to the computer screen or to a TV set.
+
+ .. note::
- The main targets of the demultiplexer are the MPEG2 audio and video
- decoders. After decoding they pass on the uncompressed audio and
- video to the computer screen or (through a PAL/NTSC encoder) to a TV
- set.
+ Modern hardware usually doesn't have a separate decoder hardware, as
+ such functionality can be provided by the main CPU, by the graphics
+ adapter of the system or by a signal processing hardware embedded on
+ a Systems on a Chip (SoC) integrated circuit.
+
+ It may also not be needed for certain usages (e.g. for data-only
+ uses like “internet over satelliteâ€).
:ref:`stb_components` shows a crude schematic of the control and data
flow between those components.
-On a DVB PCI card not all of these have to be present since some
-functionality can be provided by the main CPU of the PC (e.g. MPEG
-picture and sound decoding) or is not needed (e.g. for data-only uses
-like “internet over satelliteâ€). Also not every card or STB provides
-conditional access hardware.
.. _dvb_devices:
-Linux DVB Devices
-=================
+Linux Digital TV Devices
+========================
-The Linux DVB API lets you control these hardware components through
+The Linux Digital TV API lets you control these hardware components through
currently six Unix-style character devices for video, audio, frontend,
demux, CA and IP-over-DVB networking. The video and audio devices
control the MPEG2 decoder hardware, the frontend device the tuner and
-the DVB demodulator. The demux device gives you control over the PES and
-section filters of the hardware. If the hardware does not support
+the Digital TV demodulator. The demux device gives you control over the PES
+and section filters of the hardware. If the hardware does not support
filtering these filters can be implemented in software. Finally, the CA
device controls all the conditional access capabilities of the hardware.
It can depend on the individual security requirements of the platform,
@@ -137,9 +148,9 @@ individual devices are called:
- ``/dev/dvb/adapterN/caM``,
-where N enumerates the DVB PCI cards in a system starting from 0, and M
-enumerates the devices of each type within each adapter, starting
-from 0, too. We will omit the “ ``/dev/dvb/adapterN/``\ †in the further
+where ``N`` enumerates the Digital TV cards in a system starting from 0, and
+``M`` enumerates the devices of each type within each adapter, starting
+from 0, too. We will omit the “``/dev/dvb/adapterN/``\ †in the further
discussion of these devices.
More details about the data structures and function calls of all the
@@ -151,8 +162,8 @@ devices are described in the following chapters.
API include files
=================
-For each of the DVB devices a corresponding include file exists. The DVB
-API include files should be included in application sources with a
+For each of the Digital TV devices a corresponding include file exists. The
+Digital TV API include files should be included in application sources with a
partial path like:
diff --git a/Documentation/media/uapi/dvb/legacy_dvb_apis.rst b/Documentation/media/uapi/dvb/legacy_dvb_apis.rst
index 2957f5a988b0..e1b2c9c7b620 100644
--- a/Documentation/media/uapi/dvb/legacy_dvb_apis.rst
+++ b/Documentation/media/uapi/dvb/legacy_dvb_apis.rst
@@ -2,19 +2,31 @@
.. _legacy_dvb_apis:
-*******************
-DVB Deprecated APIs
-*******************
+***************************
+Digital TV Deprecated APIs
+***************************
-The APIs described here are kept only for historical reasons. There's
-just one driver for a very legacy hardware that uses this API. No modern
-drivers should use it. Instead, audio and video should be using the V4L2
-and ALSA APIs, and the pipelines should be set using the Media
-Controller API
+The APIs described here **should not** be used on new drivers or applications.
+
+The DVBv3 frontend API has issues with new delivery systems, including
+DVB-S2, DVB-T2, ISDB, etc.
+
+There's just one driver for a very legacy hardware using the Digital TV
+audio and video APIs. No modern drivers should use it. Instead, audio and
+video should be using the V4L2 and ALSA APIs, and the pipelines should
+be set via the Media Controller API.
+
+.. attention::
+
+ The APIs described here doesn't necessarily reflect the current
+ code implementation, as this section of the document was written
+ for DVB version 1, while the code reflects DVB version 3
+ implementation.
.. toctree::
:maxdepth: 1
+ frontend_legacy_dvbv3_api
video
audio
diff --git a/Documentation/media/uapi/dvb/net-add-if.rst b/Documentation/media/uapi/dvb/net-add-if.rst
index 82ce2438213f..6749b70246c5 100644
--- a/Documentation/media/uapi/dvb/net-add-if.rst
+++ b/Documentation/media/uapi/dvb/net-add-if.rst
@@ -41,43 +41,13 @@ created.
The struct :c:type:`dvb_net_if`::ifnum field will be
filled with the number of the created interface.
-.. c:type:: dvb_net_if
-
-.. flat-table:: struct dvb_net_if
- :header-rows: 1
- :stub-columns: 0
-
-
- - .. row 1
-
- - ID
-
- - Description
-
- - .. row 2
-
- - pid
-
- - Packet ID (PID) of the MPEG-TS that contains data
-
- - .. row 3
-
- - ifnum
-
- - number of the DVB interface.
-
- - .. row 4
-
- - feedtype
-
- - Encapsulation type of the feed. It can be:
- ``DVB_NET_FEEDTYPE_MPE`` for MPE encoding or
- ``DVB_NET_FEEDTYPE_ULE`` for ULE encoding.
-
-
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned, and :c:type:`ca_slot_info` is filled.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/net-get-if.rst b/Documentation/media/uapi/dvb/net-get-if.rst
index 1bb8ee0cbced..3733b34da9db 100644
--- a/Documentation/media/uapi/dvb/net-get-if.rst
+++ b/Documentation/media/uapi/dvb/net-get-if.rst
@@ -43,6 +43,10 @@ the ``errno`` with ``EINVAL`` error code.
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned, and :c:type:`ca_slot_info` is filled.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/net-remove-if.rst b/Documentation/media/uapi/dvb/net-remove-if.rst
index 646af23a925a..4ebe07a6b79a 100644
--- a/Documentation/media/uapi/dvb/net-remove-if.rst
+++ b/Documentation/media/uapi/dvb/net-remove-if.rst
@@ -39,6 +39,10 @@ The NET_REMOVE_IF ioctl deletes an interface previously created via
Return Value
============
-On success 0 is returned, on error -1 and the ``errno`` variable is set
-appropriately. The generic error codes are described at the
+On success 0 is returned, and :c:type:`ca_slot_info` is filled.
+
+On error -1 is returned, and the ``errno`` variable is set
+appropriately.
+
+The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/dvb/net-types.rst b/Documentation/media/uapi/dvb/net-types.rst
new file mode 100644
index 000000000000..e1177bdcd623
--- /dev/null
+++ b/Documentation/media/uapi/dvb/net-types.rst
@@ -0,0 +1,9 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _dmx_types:
+
+**************
+Net Data Types
+**************
+
+.. kernel-doc:: include/uapi/linux/dvb/net.h
diff --git a/Documentation/media/uapi/dvb/net.rst b/Documentation/media/uapi/dvb/net.rst
index eca42dd53261..e0cd4e402627 100644
--- a/Documentation/media/uapi/dvb/net.rst
+++ b/Documentation/media/uapi/dvb/net.rst
@@ -2,10 +2,11 @@
.. _net:
-###############
-DVB Network API
-###############
-The DVB net device controls the mapping of data packages that are part
+######################
+Digital TV Network API
+######################
+
+The Digital TV net device controls the mapping of data packages that are part
of a transport stream to be mapped into a virtual network interface,
visible through the standard Linux network protocol stack.
@@ -28,13 +29,13 @@ header.
.. _net_fcalls:
-######################
-DVB net Function Calls
-######################
+Digital TV net Function Calls
+#############################
.. toctree::
:maxdepth: 1
+ net-types
net-add-if
net-remove-if
net-get-if
diff --git a/Documentation/media/uapi/dvb/net_h.rst b/Documentation/media/uapi/dvb/net_h.rst
deleted file mode 100644
index 7bcf5ba9d1eb..000000000000
--- a/Documentation/media/uapi/dvb/net_h.rst
+++ /dev/null
@@ -1,9 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-.. _net_h:
-
-***********************
-DVB Network Header File
-***********************
-
-.. kernel-include:: $BUILDDIR/net.h.rst
diff --git a/Documentation/media/uapi/dvb/query-dvb-frontend-info.rst b/Documentation/media/uapi/dvb/query-dvb-frontend-info.rst
index 81cd9b92a36c..51ec0b04b496 100644
--- a/Documentation/media/uapi/dvb/query-dvb-frontend-info.rst
+++ b/Documentation/media/uapi/dvb/query-dvb-frontend-info.rst
@@ -9,5 +9,5 @@ Querying frontend information
Usually, the first thing to do when the frontend is opened is to check
the frontend capabilities. This is done using
:ref:`FE_GET_INFO`. This ioctl will enumerate the
-DVB API version and other characteristics about the frontend, and can be
-opened either in read only or read/write mode.
+Digital TV API version and other characteristics about the frontend, and can
+be opened either in read only or read/write mode.
diff --git a/Documentation/media/uapi/dvb/video-continue.rst b/Documentation/media/uapi/dvb/video-continue.rst
index 030c2ec98869..e65e600be632 100644
--- a/Documentation/media/uapi/dvb/video-continue.rst
+++ b/Documentation/media/uapi/dvb/video-continue.rst
@@ -44,7 +44,7 @@ Arguments
Description
-----------
-This ioctl is for DVB devices only. To control a V4L2 decoder use the
+This ioctl is for Digital TV devices only. To control a V4L2 decoder use the
V4L2 :ref:`VIDIOC_DECODER_CMD` instead.
This ioctl call restarts decoding and playing processes of the video
diff --git a/Documentation/media/uapi/dvb/video-freeze.rst b/Documentation/media/uapi/dvb/video-freeze.rst
index 9cef65a02e8d..5a28bdc8badd 100644
--- a/Documentation/media/uapi/dvb/video-freeze.rst
+++ b/Documentation/media/uapi/dvb/video-freeze.rst
@@ -44,14 +44,14 @@ Arguments
Description
-----------
-This ioctl is for DVB devices only. To control a V4L2 decoder use the
+This ioctl is for Digital TV devices only. To control a V4L2 decoder use the
V4L2 :ref:`VIDIOC_DECODER_CMD` instead.
This ioctl call suspends the live video stream being played. Decoding
and playing are frozen. It is then possible to restart the decoding and
playing process of the video stream using the VIDEO_CONTINUE command.
If VIDEO_SOURCE_MEMORY is selected in the ioctl call
-VIDEO_SELECT_SOURCE, the DVB subsystem will not decode any more data
+VIDEO_SELECT_SOURCE, the Digital TV subsystem will not decode any more data
until the ioctl call VIDEO_CONTINUE or VIDEO_PLAY is performed.
diff --git a/Documentation/media/uapi/dvb/video-get-event.rst b/Documentation/media/uapi/dvb/video-get-event.rst
index 6ad14cdb894a..b4f53616db9a 100644
--- a/Documentation/media/uapi/dvb/video-get-event.rst
+++ b/Documentation/media/uapi/dvb/video-get-event.rst
@@ -50,7 +50,7 @@ Arguments
Description
-----------
-This ioctl is for DVB devices only. To get events from a V4L2 decoder
+This ioctl is for Digital TV devices only. To get events from a V4L2 decoder
use the V4L2 :ref:`VIDIOC_DQEVENT` ioctl instead.
This ioctl call returns an event of type video_event if available. If
diff --git a/Documentation/media/uapi/dvb/video-play.rst b/Documentation/media/uapi/dvb/video-play.rst
index 3f66ae3b7e35..2124120aec22 100644
--- a/Documentation/media/uapi/dvb/video-play.rst
+++ b/Documentation/media/uapi/dvb/video-play.rst
@@ -44,7 +44,7 @@ Arguments
Description
-----------
-This ioctl is for DVB devices only. To control a V4L2 decoder use the
+This ioctl is for Digital TV devices only. To control a V4L2 decoder use the
V4L2 :ref:`VIDIOC_DECODER_CMD` instead.
This ioctl call asks the Video Device to start playing a video stream
diff --git a/Documentation/media/uapi/dvb/video-select-source.rst b/Documentation/media/uapi/dvb/video-select-source.rst
index 2f4fbf4b490c..cde6542723ca 100644
--- a/Documentation/media/uapi/dvb/video-select-source.rst
+++ b/Documentation/media/uapi/dvb/video-select-source.rst
@@ -50,7 +50,7 @@ Arguments
Description
-----------
-This ioctl is for DVB devices only. This ioctl was also supported by the
+This ioctl is for Digital TV devices only. This ioctl was also supported by the
V4L2 ivtv driver, but that has been replaced by the ivtv-specific
``IVTV_IOC_PASSTHROUGH_MODE`` ioctl.
diff --git a/Documentation/media/uapi/dvb/video-stop.rst b/Documentation/media/uapi/dvb/video-stop.rst
index fb827effb276..474309ad31c2 100644
--- a/Documentation/media/uapi/dvb/video-stop.rst
+++ b/Documentation/media/uapi/dvb/video-stop.rst
@@ -60,7 +60,7 @@ Arguments
Description
-----------
-This ioctl is for DVB devices only. To control a V4L2 decoder use the
+This ioctl is for Digital TV devices only. To control a V4L2 decoder use the
V4L2 :ref:`VIDIOC_DECODER_CMD` instead.
This ioctl call asks the Video Device to stop playing the current
diff --git a/Documentation/media/uapi/dvb/video.rst b/Documentation/media/uapi/dvb/video.rst
index 60d43fb7ce22..e7d68cd0cf23 100644
--- a/Documentation/media/uapi/dvb/video.rst
+++ b/Documentation/media/uapi/dvb/video.rst
@@ -2,20 +2,21 @@
.. _dvb_video:
-################
-DVB Video Device
-################
-The DVB video device controls the MPEG2 video decoder of the DVB
-hardware. It can be accessed through **/dev/dvb/adapter0/video0**. Data
+#######################
+Digital TV Video Device
+#######################
+
+The Digital TV video device controls the MPEG2 video decoder of the Digital
+TV hardware. It can be accessed through **/dev/dvb/adapter0/video0**. Data
types and and ioctl definitions can be accessed by including
**linux/dvb/video.h** in your application.
-Note that the DVB video device only controls decoding of the MPEG video
+Note that the Digital TV video device only controls decoding of the MPEG video
stream, not its presentation on the TV or computer screen. On PCs this
is typically handled by an associated video4linux device, e.g.
**/dev/video**, which allows scaling and defining output windows.
-Some DVB cards don’t have their own MPEG decoder, which results in the
+Some Digital TV cards don’t have their own MPEG decoder, which results in the
omission of the audio and video device as well as the video4linux
device.
diff --git a/Documentation/media/uapi/dvb/video_h.rst b/Documentation/media/uapi/dvb/video_h.rst
deleted file mode 100644
index 3f39b0c4879c..000000000000
--- a/Documentation/media/uapi/dvb/video_h.rst
+++ /dev/null
@@ -1,9 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-.. _video_h:
-
-*********************
-DVB Video Header File
-*********************
-
-.. kernel-include:: $BUILDDIR/video.h.rst
diff --git a/Documentation/media/uapi/gen-errors.rst b/Documentation/media/uapi/gen-errors.rst
index d39e34d1b19d..689d3b101ede 100644
--- a/Documentation/media/uapi/gen-errors.rst
+++ b/Documentation/media/uapi/gen-errors.rst
@@ -17,9 +17,7 @@ Generic Error Codes
:widths: 1 16
- - .. row 1
-
- - ``EAGAIN`` (aka ``EWOULDBLOCK``)
+ - - ``EAGAIN`` (aka ``EWOULDBLOCK``)
- The ioctl can't be handled because the device is in state where it
can't perform it. This could happen for example in case where
@@ -27,15 +25,11 @@ Generic Error Codes
is also returned when the ioctl would need to wait for an event,
but the device was opened in non-blocking mode.
- - .. row 2
-
- - ``EBADF``
+ - - ``EBADF``
- The file descriptor is not a valid.
- - .. row 3
-
- - ``EBUSY``
+ - - ``EBUSY``
- The ioctl can't be handled because the device is busy. This is
typically return while device is streaming, and an ioctl tried to
@@ -44,64 +38,53 @@ Generic Error Codes
ioctl must not be retried without performing another action to fix
the problem first (typically: stop the stream before retrying).
- - .. row 4
-
- - ``EFAULT``
+ - - ``EFAULT``
- There was a failure while copying data from/to userspace, probably
caused by an invalid pointer reference.
- - .. row 5
-
- - ``EINVAL``
+ - - ``EINVAL``
- One or more of the ioctl parameters are invalid or out of the
allowed range. This is a widely used error code. See the
individual ioctl requests for specific causes.
- - .. row 6
-
- - ``ENODEV``
+ - - ``ENODEV``
- Device not found or was removed.
- - .. row 7
-
- - ``ENOMEM``
+ - - ``ENOMEM``
- There's not enough memory to handle the desired operation.
- - .. row 8
-
- - ``ENOTTY``
+ - - ``ENOTTY``
- The ioctl is not supported by the driver, actually meaning that
the required functionality is not available, or the file
descriptor is not for a media device.
- - .. row 9
-
- - ``ENOSPC``
+ - - ``ENOSPC``
- On USB devices, the stream ioctl's can return this error, meaning
that this request would overcommit the usb bandwidth reserved for
periodic transfers (up to 80% of the USB bandwidth).
- - .. row 10
-
- - ``EPERM``
+ - - ``EPERM``
- Permission denied. Can be returned if the device needs write
permission, or some special capabilities is needed (e. g. root)
- - .. row 11
-
- - ``EIO``
+ - - ``EIO``
- I/O error. Typically used when there are problems communicating with
a hardware device. This could indicate broken or flaky hardware.
It's a 'Something is wrong, I give up!' type of error.
+ - - ``ENXIO``
+
+ - No device corresponding to this device special file exists.
+
+
.. note::
#. This list is not exhaustive; ioctls may return other error codes.
diff --git a/Documentation/media/uapi/mediactl/media-controller.rst b/Documentation/media/uapi/mediactl/media-controller.rst
index 7ae38d48969e..0eea4f9a07d5 100644
--- a/Documentation/media/uapi/mediactl/media-controller.rst
+++ b/Documentation/media/uapi/mediactl/media-controller.rst
@@ -8,7 +8,9 @@
Part IV - Media Controller API
##############################
-.. class:: toc-title
+.. only:: html
+
+ .. class:: toc-title
Table of Contents
diff --git a/Documentation/media/uapi/mediactl/media-ioc-enum-entities.rst b/Documentation/media/uapi/mediactl/media-ioc-enum-entities.rst
index 0fd329279bef..b59ce149efb5 100644
--- a/Documentation/media/uapi/mediactl/media-ioc-enum-entities.rst
+++ b/Documentation/media/uapi/mediactl/media-ioc-enum-entities.rst
@@ -51,7 +51,7 @@ id's until they get an error.
.. c:type:: media_entity_desc
-.. tabularcolumns:: |p{1.5cm}|p{1.5cm}|p{1.5cm}|p{1.5cm}|p{11.5cm}|
+.. tabularcolumns:: |p{1.5cm}|p{1.7cm}|p{1.6cm}|p{1.5cm}|p{11.2cm}|
.. flat-table:: struct media_entity_desc
:header-rows: 0
diff --git a/Documentation/media/uapi/mediactl/media-ioc-g-topology.rst b/Documentation/media/uapi/mediactl/media-ioc-g-topology.rst
index 48c9531f4db0..997e6b17440d 100644
--- a/Documentation/media/uapi/mediactl/media-ioc-g-topology.rst
+++ b/Documentation/media/uapi/mediactl/media-ioc-g-topology.rst
@@ -46,7 +46,7 @@ other values untouched.
If the ``topology_version`` remains the same, the ioctl should fill the
desired arrays with the media graph elements.
-.. tabularcolumns:: |p{1.6cm}|p{3.2cm}|p{12.7cm}|
+.. tabularcolumns:: |p{1.6cm}|p{3.4cm}|p{12.5cm}|
.. c:type:: media_v2_topology
@@ -241,7 +241,7 @@ desired arrays with the media graph elements.
.. c:type:: media_v2_intf_devnode
-.. flat-table:: struct media_v2_interface
+.. flat-table:: struct media_v2_intf_devnode
:header-rows: 0
:stub-columns: 0
:widths: 1 2 8
@@ -312,7 +312,7 @@ desired arrays with the media graph elements.
.. c:type:: media_v2_link
-.. flat-table:: struct media_v2_pad
+.. flat-table:: struct media_v2_link
:header-rows: 0
:stub-columns: 0
:widths: 1 2 8
@@ -324,7 +324,7 @@ desired arrays with the media graph elements.
- ``id``
- - Unique ID for the pad.
+ - Unique ID for the link.
- .. row 2
@@ -334,7 +334,7 @@ desired arrays with the media graph elements.
- On pad to pad links: unique ID for the source pad.
- On interface to entity links: unique ID for the interface.
+ On interface to entity links: unique ID for the entity.
- .. row 3
diff --git a/Documentation/media/uapi/mediactl/media-types.rst b/Documentation/media/uapi/mediactl/media-types.rst
index 2a5164aea2b4..8d64b0c06ebc 100644
--- a/Documentation/media/uapi/mediactl/media-types.rst
+++ b/Documentation/media/uapi/mediactl/media-types.rst
@@ -5,7 +5,7 @@
Types and flags used to represent the media graph elements
==========================================================
-.. tabularcolumns:: |p{8.0cm}|p{10.5cm}|
+.. tabularcolumns:: |p{8.2cm}|p{10.3cm}|
.. _media-entity-type:
@@ -299,6 +299,27 @@ Types and flags used to represent the media graph elements
received on its sink pad and outputs the statistics data on
its source pad.
+ - .. row 29
+
+ .. _MEDIA-ENT-F-VID-MUX:
+
+ - ``MEDIA_ENT_F_VID_MUX``
+
+ - Video multiplexer. An entity capable of multiplexing must have at
+ least two sink pads and one source pad, and must pass the video
+ frame(s) received from the active sink pad to the source pad.
+
+ - .. row 30
+
+ .. _MEDIA-ENT-F-VID-IF-BRIDGE:
+
+ - ``MEDIA_ENT_F_VID_IF_BRIDGE``
+
+ - Video interface bridge. A video interface bridge entity must have at
+ least one sink pad and at least one source pad. It receives video
+ frames on its sink pad from an input video bus of one type (HDMI, eDP,
+ MIPI CSI-2, ...), and outputs them on its source pad to an output
+ video bus of another type (eDP, MIPI CSI-2, parallel, ...).
.. tabularcolumns:: |p{5.5cm}|p{12.0cm}|
diff --git a/Documentation/media/uapi/rc/rc-sysfs-nodes.rst b/Documentation/media/uapi/rc/rc-sysfs-nodes.rst
index 3476ae29708f..2d01358d5504 100644
--- a/Documentation/media/uapi/rc/rc-sysfs-nodes.rst
+++ b/Documentation/media/uapi/rc/rc-sysfs-nodes.rst
@@ -34,9 +34,9 @@ receiver device where N is the number of the receiver.
/sys/class/rc/rcN/protocols
===========================
-Reading this file returns a list of available protocols, something like:
+Reading this file returns a list of available protocols, something like::
-``rc5 [rc6] nec jvc [sony]``
+ rc5 [rc6] nec jvc [sony]
Enabled protocols are shown in [] brackets.
@@ -90,11 +90,11 @@ This value may be reset to 0 if the current protocol is altered.
==================================
Reading this file returns a list of available protocols to use for the
-wakeup filter, something like:
+wakeup filter, something like::
-``rc-5 nec nec-x rc-6-0 rc-6-6a-24 [rc-6-6a-32] rc-6-mce``
+ rc-5 nec nec-x rc-6-0 rc-6-6a-24 [rc-6-6a-32] rc-6-mce
-Note that protocol variants are listed, so "nec", "sony", "rc-5", "rc-6"
+Note that protocol variants are listed, so ``nec``, ``sony``, ``rc-5``, ``rc-6``
have their different bit length encodings listed if available.
Note that all protocol variants are listed.
diff --git a/Documentation/media/uapi/rc/remote_controllers.rst b/Documentation/media/uapi/rc/remote_controllers.rst
index 3e25cc9f65e0..46a8acb82125 100644
--- a/Documentation/media/uapi/rc/remote_controllers.rst
+++ b/Documentation/media/uapi/rc/remote_controllers.rst
@@ -8,7 +8,9 @@
Part III - Remote Controller API
################################
-.. class:: toc-title
+.. only:: html
+
+ .. class:: toc-title
Table of Contents
diff --git a/Documentation/media/uapi/v4l/bayer.svg b/Documentation/media/uapi/v4l/bayer.svg
index fbd4cfb5e6bf..c395113d1876 100644
--- a/Documentation/media/uapi/v4l/bayer.svg
+++ b/Documentation/media/uapi/v4l/bayer.svg
@@ -1,984 +1,29 @@
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diff --git a/Documentation/media/uapi/v4l/colorspaces-defs.rst b/Documentation/media/uapi/v4l/colorspaces-defs.rst
new file mode 100644
index 000000000000..410907fe9415
--- /dev/null
+++ b/Documentation/media/uapi/v4l/colorspaces-defs.rst
@@ -0,0 +1,176 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+****************************
+Defining Colorspaces in V4L2
+****************************
+
+In V4L2 colorspaces are defined by four values. The first is the
+colorspace identifier (enum :c:type:`v4l2_colorspace`)
+which defines the chromaticities, the default transfer function, the
+default Y'CbCr encoding and the default quantization method. The second
+is the transfer function identifier (enum
+:c:type:`v4l2_xfer_func`) to specify non-standard
+transfer functions. The third is the Y'CbCr encoding identifier (enum
+:c:type:`v4l2_ycbcr_encoding`) to specify
+non-standard Y'CbCr encodings and the fourth is the quantization
+identifier (enum :c:type:`v4l2_quantization`) to
+specify non-standard quantization methods. Most of the time only the
+colorspace field of struct :c:type:`v4l2_pix_format`
+or struct :c:type:`v4l2_pix_format_mplane`
+needs to be filled in.
+
+.. _hsv-colorspace:
+
+On :ref:`HSV formats <hsv-formats>` the *Hue* is defined as the angle on
+the cylindrical color representation. Usually this angle is measured in
+degrees, i.e. 0-360. When we map this angle value into 8 bits, there are
+two basic ways to do it: Divide the angular value by 2 (0-179), or use the
+whole range, 0-255, dividing the angular value by 1.41. The enum
+:c:type:`v4l2_hsv_encoding` specifies which encoding is used.
+
+.. note:: The default R'G'B' quantization is full range for all
+ colorspaces except for BT.2020 which uses limited range R'G'B'
+ quantization.
+
+.. tabularcolumns:: |p{6.0cm}|p{11.5cm}|
+
+.. c:type:: v4l2_colorspace
+
+.. flat-table:: V4L2 Colorspaces
+ :header-rows: 1
+ :stub-columns: 0
+
+ * - Identifier
+ - Details
+ * - ``V4L2_COLORSPACE_DEFAULT``
+ - The default colorspace. This can be used by applications to let
+ the driver fill in the colorspace.
+ * - ``V4L2_COLORSPACE_SMPTE170M``
+ - See :ref:`col-smpte-170m`.
+ * - ``V4L2_COLORSPACE_REC709``
+ - See :ref:`col-rec709`.
+ * - ``V4L2_COLORSPACE_SRGB``
+ - See :ref:`col-srgb`.
+ * - ``V4L2_COLORSPACE_ADOBERGB``
+ - See :ref:`col-adobergb`.
+ * - ``V4L2_COLORSPACE_BT2020``
+ - See :ref:`col-bt2020`.
+ * - ``V4L2_COLORSPACE_DCI_P3``
+ - See :ref:`col-dcip3`.
+ * - ``V4L2_COLORSPACE_SMPTE240M``
+ - See :ref:`col-smpte-240m`.
+ * - ``V4L2_COLORSPACE_470_SYSTEM_M``
+ - See :ref:`col-sysm`.
+ * - ``V4L2_COLORSPACE_470_SYSTEM_BG``
+ - See :ref:`col-sysbg`.
+ * - ``V4L2_COLORSPACE_JPEG``
+ - See :ref:`col-jpeg`.
+ * - ``V4L2_COLORSPACE_RAW``
+ - The raw colorspace. This is used for raw image capture where the
+ image is minimally processed and is using the internal colorspace
+ of the device. The software that processes an image using this
+ 'colorspace' will have to know the internals of the capture
+ device.
+
+
+
+.. c:type:: v4l2_xfer_func
+
+.. tabularcolumns:: |p{5.5cm}|p{12.0cm}|
+
+.. flat-table:: V4L2 Transfer Function
+ :header-rows: 1
+ :stub-columns: 0
+
+ * - Identifier
+ - Details
+ * - ``V4L2_XFER_FUNC_DEFAULT``
+ - Use the default transfer function as defined by the colorspace.
+ * - ``V4L2_XFER_FUNC_709``
+ - Use the Rec. 709 transfer function.
+ * - ``V4L2_XFER_FUNC_SRGB``
+ - Use the sRGB transfer function.
+ * - ``V4L2_XFER_FUNC_ADOBERGB``
+ - Use the AdobeRGB transfer function.
+ * - ``V4L2_XFER_FUNC_SMPTE240M``
+ - Use the SMPTE 240M transfer function.
+ * - ``V4L2_XFER_FUNC_NONE``
+ - Do not use a transfer function (i.e. use linear RGB values).
+ * - ``V4L2_XFER_FUNC_DCI_P3``
+ - Use the DCI-P3 transfer function.
+ * - ``V4L2_XFER_FUNC_SMPTE2084``
+ - Use the SMPTE 2084 transfer function. See :ref:`xf-smpte-2084`.
+
+
+
+.. c:type:: v4l2_ycbcr_encoding
+
+.. tabularcolumns:: |p{6.5cm}|p{11.0cm}|
+
+.. flat-table:: V4L2 Y'CbCr Encodings
+ :header-rows: 1
+ :stub-columns: 0
+
+ * - Identifier
+ - Details
+ * - ``V4L2_YCBCR_ENC_DEFAULT``
+ - Use the default Y'CbCr encoding as defined by the colorspace.
+ * - ``V4L2_YCBCR_ENC_601``
+ - Use the BT.601 Y'CbCr encoding.
+ * - ``V4L2_YCBCR_ENC_709``
+ - Use the Rec. 709 Y'CbCr encoding.
+ * - ``V4L2_YCBCR_ENC_XV601``
+ - Use the extended gamut xvYCC BT.601 encoding.
+ * - ``V4L2_YCBCR_ENC_XV709``
+ - Use the extended gamut xvYCC Rec. 709 encoding.
+ * - ``V4L2_YCBCR_ENC_BT2020``
+ - Use the default non-constant luminance BT.2020 Y'CbCr encoding.
+ * - ``V4L2_YCBCR_ENC_BT2020_CONST_LUM``
+ - Use the constant luminance BT.2020 Yc'CbcCrc encoding.
+ * - ``V4L2_YCBCR_ENC_SMPTE_240M``
+ - Use the SMPTE 240M Y'CbCr encoding.
+
+
+
+.. c:type:: v4l2_hsv_encoding
+
+.. tabularcolumns:: |p{6.5cm}|p{11.0cm}|
+
+.. flat-table:: V4L2 HSV Encodings
+ :header-rows: 1
+ :stub-columns: 0
+
+ * - Identifier
+ - Details
+ * - ``V4L2_HSV_ENC_180``
+ - For the Hue, each LSB is two degrees.
+ * - ``V4L2_HSV_ENC_256``
+ - For the Hue, the 360 degrees are mapped into 8 bits, i.e. each
+ LSB is roughly 1.41 degrees.
+
+
+
+.. c:type:: v4l2_quantization
+
+.. tabularcolumns:: |p{6.5cm}|p{11.0cm}|
+
+.. flat-table:: V4L2 Quantization Methods
+ :header-rows: 1
+ :stub-columns: 0
+
+ * - Identifier
+ - Details
+ * - ``V4L2_QUANTIZATION_DEFAULT``
+ - Use the default quantization encoding as defined by the
+ colorspace. This is always full range for R'G'B' (except for the
+ BT.2020 colorspace) and HSV. It is usually limited range for Y'CbCr.
+ * - ``V4L2_QUANTIZATION_FULL_RANGE``
+ - Use the full range quantization encoding. I.e. the range [0…1] is
+ mapped to [0…255] (with possible clipping to [1…254] to avoid the
+ 0x00 and 0xff values). Cb and Cr are mapped from [-0.5…0.5] to
+ [0…255] (with possible clipping to [1…254] to avoid the 0x00 and
+ 0xff values).
+ * - ``V4L2_QUANTIZATION_LIM_RANGE``
+ - Use the limited range quantization encoding. I.e. the range [0…1]
+ is mapped to [16…235]. Cb and Cr are mapped from [-0.5…0.5] to
+ [16…240].
diff --git a/Documentation/media/uapi/v4l/colorspaces-details.rst b/Documentation/media/uapi/v4l/colorspaces-details.rst
new file mode 100644
index 000000000000..b5d551b9cc8f
--- /dev/null
+++ b/Documentation/media/uapi/v4l/colorspaces-details.rst
@@ -0,0 +1,807 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+********************************
+Detailed Colorspace Descriptions
+********************************
+
+
+.. _col-smpte-170m:
+
+Colorspace SMPTE 170M (V4L2_COLORSPACE_SMPTE170M)
+=================================================
+
+The :ref:`smpte170m` standard defines the colorspace used by NTSC and
+PAL and by SDTV in general. The default transfer function is
+``V4L2_XFER_FUNC_709``. The default Y'CbCr encoding is
+``V4L2_YCBCR_ENC_601``. The default Y'CbCr quantization is limited
+range. The chromaticities of the primary colors and the white reference
+are:
+
+
+
+.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
+
+.. flat-table:: SMPTE 170M Chromaticities
+ :header-rows: 1
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - Color
+ - x
+ - y
+ * - Red
+ - 0.630
+ - 0.340
+ * - Green
+ - 0.310
+ - 0.595
+ * - Blue
+ - 0.155
+ - 0.070
+ * - White Reference (D65)
+ - 0.3127
+ - 0.3290
+
+
+The red, green and blue chromaticities are also often referred to as the
+SMPTE C set, so this colorspace is sometimes called SMPTE C as well.
+
+The transfer function defined for SMPTE 170M is the same as the one
+defined in Rec. 709.
+
+.. math::
+
+ L' = -1.099(-L)^{0.45} + 0.099 \text{, for } L \le-0.018
+
+ L' = 4.5L \text{, for } -0.018 < L < 0.018
+
+ L' = 1.099L^{0.45} - 0.099 \text{, for } L \ge 0.018
+
+Inverse Transfer function:
+
+.. math::
+
+ L = -\left( \frac{L' - 0.099}{-1.099} \right) ^{\frac{1}{0.45}} \text{, for } L' \le -0.081
+
+ L = \frac{L'}{4.5} \text{, for } -0.081 < L' < 0.081
+
+ L = \left(\frac{L' + 0.099}{1.099}\right)^{\frac{1}{0.45} } \text{, for } L' \ge 0.081
+
+The luminance (Y') and color difference (Cb and Cr) are obtained with
+the following ``V4L2_YCBCR_ENC_601`` encoding:
+
+.. math::
+
+ Y' = 0.2990R' + 0.5870G' + 0.1140B'
+
+ Cb = -0.1687R' - 0.3313G' + 0.5B'
+
+ Cr = 0.5R' - 0.4187G' - 0.0813B'
+
+Y' is clamped to the range [0…1] and Cb and Cr are clamped to the range
+[-0.5…0.5]. This conversion to Y'CbCr is identical to the one defined in
+the :ref:`itu601` standard and this colorspace is sometimes called
+BT.601 as well, even though BT.601 does not mention any color primaries.
+
+The default quantization is limited range, but full range is possible
+although rarely seen.
+
+
+.. _col-rec709:
+
+Colorspace Rec. 709 (V4L2_COLORSPACE_REC709)
+============================================
+
+The :ref:`itu709` standard defines the colorspace used by HDTV in
+general. The default transfer function is ``V4L2_XFER_FUNC_709``. The
+default Y'CbCr encoding is ``V4L2_YCBCR_ENC_709``. The default Y'CbCr
+quantization is limited range. The chromaticities of the primary colors
+and the white reference are:
+
+
+
+.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
+
+.. flat-table:: Rec. 709 Chromaticities
+ :header-rows: 1
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - Color
+ - x
+ - y
+ * - Red
+ - 0.640
+ - 0.330
+ * - Green
+ - 0.300
+ - 0.600
+ * - Blue
+ - 0.150
+ - 0.060
+ * - White Reference (D65)
+ - 0.3127
+ - 0.3290
+
+
+The full name of this standard is Rec. ITU-R BT.709-5.
+
+Transfer function. Normally L is in the range [0…1], but for the
+extended gamut xvYCC encoding values outside that range are allowed.
+
+.. math::
+
+ L' = -1.099(-L)^{0.45} + 0.099 \text{, for } L \le -0.018
+
+ L' = 4.5L \text{, for } -0.018 < L < 0.018
+
+ L' = 1.099L^{0.45} - 0.099 \text{, for } L \ge 0.018
+
+Inverse Transfer function:
+
+.. math::
+
+ L = -\left( \frac{L' - 0.099}{-1.099} \right)^\frac{1}{0.45} \text{, for } L' \le -0.081
+
+ L = \frac{L'}{4.5}\text{, for } -0.081 < L' < 0.081
+
+ L = \left(\frac{L' + 0.099}{1.099}\right)^{\frac{1}{0.45} } \text{, for } L' \ge 0.081
+
+The luminance (Y') and color difference (Cb and Cr) are obtained with
+the following ``V4L2_YCBCR_ENC_709`` encoding:
+
+.. math::
+
+ Y' = 0.2126R' + 0.7152G' + 0.0722B'
+
+ Cb = -0.1146R' - 0.3854G' + 0.5B'
+
+ Cr = 0.5R' - 0.4542G' - 0.0458B'
+
+Y' is clamped to the range [0…1] and Cb and Cr are clamped to the range
+[-0.5…0.5].
+
+The default quantization is limited range, but full range is possible
+although rarely seen.
+
+The ``V4L2_YCBCR_ENC_709`` encoding described above is the default for
+this colorspace, but it can be overridden with ``V4L2_YCBCR_ENC_601``,
+in which case the BT.601 Y'CbCr encoding is used.
+
+Two additional extended gamut Y'CbCr encodings are also possible with
+this colorspace:
+
+The xvYCC 709 encoding (``V4L2_YCBCR_ENC_XV709``, :ref:`xvycc`) is
+similar to the Rec. 709 encoding, but it allows for R', G' and B' values
+that are outside the range [0…1]. The resulting Y', Cb and Cr values are
+scaled and offset according to the limited range formula:
+
+.. math::
+
+ Y' = \frac{219}{256} * (0.2126R' + 0.7152G' + 0.0722B') + \frac{16}{256}
+
+ Cb = \frac{224}{256} * (-0.1146R' - 0.3854G' + 0.5B')
+
+ Cr = \frac{224}{256} * (0.5R' - 0.4542G' - 0.0458B')
+
+The xvYCC 601 encoding (``V4L2_YCBCR_ENC_XV601``, :ref:`xvycc`) is
+similar to the BT.601 encoding, but it allows for R', G' and B' values
+that are outside the range [0…1]. The resulting Y', Cb and Cr values are
+scaled and offset according to the limited range formula:
+
+.. math::
+
+ Y' = \frac{219}{256} * (0.2990R' + 0.5870G' + 0.1140B') + \frac{16}{256}
+
+ Cb = \frac{224}{256} * (-0.1687R' - 0.3313G' + 0.5B')
+
+ Cr = \frac{224}{256} * (0.5R' - 0.4187G' - 0.0813B')
+
+Y' is clamped to the range [0…1] and Cb and Cr are clamped to the range
+[-0.5…0.5] and quantized without further scaling or offsets.
+The non-standard xvYCC 709 or xvYCC 601 encodings can be
+used by selecting ``V4L2_YCBCR_ENC_XV709`` or ``V4L2_YCBCR_ENC_XV601``.
+As seen by the xvYCC formulas these encodings always use limited range quantization,
+there is no full range variant. The whole point of these extended gamut encodings
+is that values outside the limited range are still valid, although they
+map to R', G' and B' values outside the [0…1] range and are therefore outside
+the Rec. 709 colorspace gamut.
+
+
+.. _col-srgb:
+
+Colorspace sRGB (V4L2_COLORSPACE_SRGB)
+======================================
+
+The :ref:`srgb` standard defines the colorspace used by most webcams
+and computer graphics. The default transfer function is
+``V4L2_XFER_FUNC_SRGB``. The default Y'CbCr encoding is
+``V4L2_YCBCR_ENC_601``. The default Y'CbCr quantization is limited range.
+
+Note that the :ref:`sycc` standard specifies full range quantization,
+however all current capture hardware supported by the kernel convert
+R'G'B' to limited range Y'CbCr. So choosing full range as the default
+would break how applications interpret the quantization range.
+
+The chromaticities of the primary colors and the white reference are:
+
+
+
+.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
+
+.. flat-table:: sRGB Chromaticities
+ :header-rows: 1
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - Color
+ - x
+ - y
+ * - Red
+ - 0.640
+ - 0.330
+ * - Green
+ - 0.300
+ - 0.600
+ * - Blue
+ - 0.150
+ - 0.060
+ * - White Reference (D65)
+ - 0.3127
+ - 0.3290
+
+
+These chromaticities are identical to the Rec. 709 colorspace.
+
+Transfer function. Note that negative values for L are only used by the
+Y'CbCr conversion.
+
+.. math::
+
+ L' = -1.055(-L)^{\frac{1}{2.4} } + 0.055\text{, for }L < -0.0031308
+
+ L' = 12.92L\text{, for }-0.0031308 \le L \le 0.0031308
+
+ L' = 1.055L ^{\frac{1}{2.4} } - 0.055\text{, for }0.0031308 < L \le 1
+
+Inverse Transfer function:
+
+.. math::
+
+ L = -((-L' + 0.055) / 1.055) ^{2.4}\text{, for }L' < -0.04045
+
+ L = L' / 12.92\text{, for }-0.04045 \le L' \le 0.04045
+
+ L = ((L' + 0.055) / 1.055) ^{2.4}\text{, for }L' > 0.04045
+
+The luminance (Y') and color difference (Cb and Cr) are obtained with
+the following ``V4L2_YCBCR_ENC_601`` encoding as defined by :ref:`sycc`:
+
+.. math::
+
+ Y' = 0.2990R' + 0.5870G' + 0.1140B'
+
+ Cb = -0.1687R' - 0.3313G' + 0.5B'
+
+ Cr = 0.5R' - 0.4187G' - 0.0813B'
+
+Y' is clamped to the range [0…1] and Cb and Cr are clamped to the range
+[-0.5…0.5]. This transform is identical to one defined in SMPTE
+170M/BT.601. The Y'CbCr quantization is limited range.
+
+
+.. _col-adobergb:
+
+Colorspace Adobe RGB (V4L2_COLORSPACE_ADOBERGB)
+===============================================
+
+The :ref:`adobergb` standard defines the colorspace used by computer
+graphics that use the AdobeRGB colorspace. This is also known as the
+:ref:`oprgb` standard. The default transfer function is
+``V4L2_XFER_FUNC_ADOBERGB``. The default Y'CbCr encoding is
+``V4L2_YCBCR_ENC_601``. The default Y'CbCr quantization is limited
+range.
+
+Note that the :ref:`oprgb` standard specifies full range quantization,
+however all current capture hardware supported by the kernel convert
+R'G'B' to limited range Y'CbCr. So choosing full range as the default
+would break how applications interpret the quantization range.
+
+The chromaticities of the primary colors and the white reference are:
+
+
+.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
+
+.. flat-table:: Adobe RGB Chromaticities
+ :header-rows: 1
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - Color
+ - x
+ - y
+ * - Red
+ - 0.6400
+ - 0.3300
+ * - Green
+ - 0.2100
+ - 0.7100
+ * - Blue
+ - 0.1500
+ - 0.0600
+ * - White Reference (D65)
+ - 0.3127
+ - 0.3290
+
+
+
+Transfer function:
+
+.. math::
+
+ L' = L ^{\frac{1}{2.19921875}}
+
+Inverse Transfer function:
+
+.. math::
+
+ L = L'^{(2.19921875)}
+
+The luminance (Y') and color difference (Cb and Cr) are obtained with
+the following ``V4L2_YCBCR_ENC_601`` encoding:
+
+.. math::
+
+ Y' = 0.2990R' + 0.5870G' + 0.1140B'
+
+ Cb = -0.1687R' - 0.3313G' + 0.5B'
+
+ Cr = 0.5R' - 0.4187G' - 0.0813B'
+
+Y' is clamped to the range [0…1] and Cb and Cr are clamped to the range
+[-0.5…0.5]. This transform is identical to one defined in SMPTE
+170M/BT.601. The Y'CbCr quantization is limited range.
+
+
+.. _col-bt2020:
+
+Colorspace BT.2020 (V4L2_COLORSPACE_BT2020)
+===========================================
+
+The :ref:`itu2020` standard defines the colorspace used by Ultra-high
+definition television (UHDTV). The default transfer function is
+``V4L2_XFER_FUNC_709``. The default Y'CbCr encoding is
+``V4L2_YCBCR_ENC_BT2020``. The default R'G'B' quantization is limited
+range (!), and so is the default Y'CbCr quantization. The chromaticities
+of the primary colors and the white reference are:
+
+
+
+.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
+
+.. flat-table:: BT.2020 Chromaticities
+ :header-rows: 1
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - Color
+ - x
+ - y
+ * - Red
+ - 0.708
+ - 0.292
+ * - Green
+ - 0.170
+ - 0.797
+ * - Blue
+ - 0.131
+ - 0.046
+ * - White Reference (D65)
+ - 0.3127
+ - 0.3290
+
+
+
+Transfer function (same as Rec. 709):
+
+.. math::
+
+ L' = 4.5L\text{, for }0 \le L < 0.018
+
+ L' = 1.099L ^{0.45} - 0.099\text{, for } 0.018 \le L \le 1
+
+Inverse Transfer function:
+
+.. math::
+
+ L = L' / 4.5\text{, for } L' < 0.081
+
+ L = \left( \frac{L' + 0.099}{1.099}\right) ^{\frac{1}{0.45} }\text{, for } L' \ge 0.081
+
+Please note that while Rec. 709 is defined as the default transfer function
+by the :ref:`itu2020` standard, in practice this colorspace is often used
+with the :ref:`xf-smpte-2084`. In particular Ultra HD Blu-ray discs use
+this combination.
+
+The luminance (Y') and color difference (Cb and Cr) are obtained with
+the following ``V4L2_YCBCR_ENC_BT2020`` encoding:
+
+.. math::
+
+ Y' = 0.2627R' + 0.6780G' + 0.0593B'
+
+ Cb = -0.1396R' - 0.3604G' + 0.5B'
+
+ Cr = 0.5R' - 0.4598G' - 0.0402B'
+
+Y' is clamped to the range [0…1] and Cb and Cr are clamped to the range
+[-0.5…0.5]. The Y'CbCr quantization is limited range.
+
+There is also an alternate constant luminance R'G'B' to Yc'CbcCrc
+(``V4L2_YCBCR_ENC_BT2020_CONST_LUM``) encoding:
+
+Luma:
+
+.. math::
+ :nowrap:
+
+ \begin{align*}
+ Yc' = (0.2627R + 0.6780G + 0.0593B)'& \\
+ B' - Yc' \le 0:& \\
+ &Cbc = (B' - Yc') / 1.9404 \\
+ B' - Yc' > 0: & \\
+ &Cbc = (B' - Yc') / 1.5816 \\
+ R' - Yc' \le 0:& \\
+ &Crc = (R' - Y') / 1.7184 \\
+ R' - Yc' > 0:& \\
+ &Crc = (R' - Y') / 0.9936
+ \end{align*}
+
+Yc' is clamped to the range [0…1] and Cbc and Crc are clamped to the
+range [-0.5…0.5]. The Yc'CbcCrc quantization is limited range.
+
+
+.. _col-dcip3:
+
+Colorspace DCI-P3 (V4L2_COLORSPACE_DCI_P3)
+==========================================
+
+The :ref:`smpte431` standard defines the colorspace used by cinema
+projectors that use the DCI-P3 colorspace. The default transfer function
+is ``V4L2_XFER_FUNC_DCI_P3``. The default Y'CbCr encoding is
+``V4L2_YCBCR_ENC_709``. The default Y'CbCr quantization is limited range.
+
+.. note::
+
+ Note that this colorspace standard does not specify a
+ Y'CbCr encoding since it is not meant to be encoded to Y'CbCr. So this
+ default Y'CbCr encoding was picked because it is the HDTV encoding.
+
+The chromaticities of the primary colors and the white reference are:
+
+
+
+.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
+
+.. flat-table:: DCI-P3 Chromaticities
+ :header-rows: 1
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - Color
+ - x
+ - y
+ * - Red
+ - 0.6800
+ - 0.3200
+ * - Green
+ - 0.2650
+ - 0.6900
+ * - Blue
+ - 0.1500
+ - 0.0600
+ * - White Reference
+ - 0.3140
+ - 0.3510
+
+
+
+Transfer function:
+
+.. math::
+
+ L' = L^{\frac{1}{2.6}}
+
+Inverse Transfer function:
+
+.. math::
+
+ L = L'^{(2.6)}
+
+Y'CbCr encoding is not specified. V4L2 defaults to Rec. 709.
+
+
+.. _col-smpte-240m:
+
+Colorspace SMPTE 240M (V4L2_COLORSPACE_SMPTE240M)
+=================================================
+
+The :ref:`smpte240m` standard was an interim standard used during the
+early days of HDTV (1988-1998). It has been superseded by Rec. 709. The
+default transfer function is ``V4L2_XFER_FUNC_SMPTE240M``. The default
+Y'CbCr encoding is ``V4L2_YCBCR_ENC_SMPTE240M``. The default Y'CbCr
+quantization is limited range. The chromaticities of the primary colors
+and the white reference are:
+
+
+
+.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
+
+.. flat-table:: SMPTE 240M Chromaticities
+ :header-rows: 1
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - Color
+ - x
+ - y
+ * - Red
+ - 0.630
+ - 0.340
+ * - Green
+ - 0.310
+ - 0.595
+ * - Blue
+ - 0.155
+ - 0.070
+ * - White Reference (D65)
+ - 0.3127
+ - 0.3290
+
+
+These chromaticities are identical to the SMPTE 170M colorspace.
+
+Transfer function:
+
+.. math::
+
+ L' = 4L\text{, for } 0 \le L < 0.0228
+
+ L' = 1.1115L ^{0.45} - 0.1115\text{, for } 0.0228 \le L \le 1
+
+Inverse Transfer function:
+
+.. math::
+
+ L = \frac{L'}{4}\text{, for } 0 \le L' < 0.0913
+
+ L = \left( \frac{L' + 0.1115}{1.1115}\right) ^{\frac{1}{0.45} }\text{, for } L' \ge 0.0913
+
+The luminance (Y') and color difference (Cb and Cr) are obtained with
+the following ``V4L2_YCBCR_ENC_SMPTE240M`` encoding:
+
+.. math::
+
+ Y' = 0.2122R' + 0.7013G' + 0.0865B'
+
+ Cb = -0.1161R' - 0.3839G' + 0.5B'
+
+ Cr = 0.5R' - 0.4451G' - 0.0549B'
+
+Y' is clamped to the range [0…1] and Cb and Cr are clamped to the
+range [-0.5…0.5]. The Y'CbCr quantization is limited range.
+
+
+.. _col-sysm:
+
+Colorspace NTSC 1953 (V4L2_COLORSPACE_470_SYSTEM_M)
+===================================================
+
+This standard defines the colorspace used by NTSC in 1953. In practice
+this colorspace is obsolete and SMPTE 170M should be used instead. The
+default transfer function is ``V4L2_XFER_FUNC_709``. The default Y'CbCr
+encoding is ``V4L2_YCBCR_ENC_601``. The default Y'CbCr quantization is
+limited range. The chromaticities of the primary colors and the white
+reference are:
+
+
+
+.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
+
+.. flat-table:: NTSC 1953 Chromaticities
+ :header-rows: 1
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - Color
+ - x
+ - y
+ * - Red
+ - 0.67
+ - 0.33
+ * - Green
+ - 0.21
+ - 0.71
+ * - Blue
+ - 0.14
+ - 0.08
+ * - White Reference (C)
+ - 0.310
+ - 0.316
+
+
+.. note::
+
+ This colorspace uses Illuminant C instead of D65 as the white
+ reference. To correctly convert an image in this colorspace to another
+ that uses D65 you need to apply a chromatic adaptation algorithm such as
+ the Bradford method.
+
+The transfer function was never properly defined for NTSC 1953. The Rec.
+709 transfer function is recommended in the literature:
+
+.. math::
+
+ L' = 4.5L\text{, for } 0 \le L < 0.018
+
+ L' = 1.099L ^{0.45} - 0.099\text{, for } 0.018 \le L \le 1
+
+Inverse Transfer function:
+
+.. math::
+
+ L = \frac{L'}{4.5} \text{, for } L' < 0.081
+
+ L = \left( \frac{L' + 0.099}{1.099}\right) ^{\frac{1}{0.45} }\text{, for } L' \ge 0.081
+
+The luminance (Y') and color difference (Cb and Cr) are obtained with
+the following ``V4L2_YCBCR_ENC_601`` encoding:
+
+.. math::
+
+ Y' = 0.2990R' + 0.5870G' + 0.1140B'
+
+ Cb = -0.1687R' - 0.3313G' + 0.5B'
+
+ Cr = 0.5R' - 0.4187G' - 0.0813B'
+
+Y' is clamped to the range [0…1] and Cb and Cr are clamped to the range
+[-0.5…0.5]. The Y'CbCr quantization is limited range. This transform is
+identical to one defined in SMPTE 170M/BT.601.
+
+
+.. _col-sysbg:
+
+Colorspace EBU Tech. 3213 (V4L2_COLORSPACE_470_SYSTEM_BG)
+=========================================================
+
+The :ref:`tech3213` standard defines the colorspace used by PAL/SECAM
+in 1975. In practice this colorspace is obsolete and SMPTE 170M should
+be used instead. The default transfer function is
+``V4L2_XFER_FUNC_709``. The default Y'CbCr encoding is
+``V4L2_YCBCR_ENC_601``. The default Y'CbCr quantization is limited
+range. The chromaticities of the primary colors and the white reference
+are:
+
+
+
+.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
+
+.. flat-table:: EBU Tech. 3213 Chromaticities
+ :header-rows: 1
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - Color
+ - x
+ - y
+ * - Red
+ - 0.64
+ - 0.33
+ * - Green
+ - 0.29
+ - 0.60
+ * - Blue
+ - 0.15
+ - 0.06
+ * - White Reference (D65)
+ - 0.3127
+ - 0.3290
+
+
+
+The transfer function was never properly defined for this colorspace.
+The Rec. 709 transfer function is recommended in the literature:
+
+.. math::
+
+ L' = 4.5L\text{, for } 0 \le L < 0.018
+
+ L' = 1.099L ^{0.45} - 0.099\text{, for } 0.018 \le L \le 1
+
+Inverse Transfer function:
+
+.. math::
+
+ L = \frac{L'}{4.5} \text{, for } L' < 0.081
+
+ L = \left(\frac{L' + 0.099}{1.099} \right) ^{\frac{1}{0.45} }\text{, for } L' \ge 0.081
+
+The luminance (Y') and color difference (Cb and Cr) are obtained with
+the following ``V4L2_YCBCR_ENC_601`` encoding:
+
+.. math::
+
+ Y' = 0.2990R' + 0.5870G' + 0.1140B'
+
+ Cb = -0.1687R' - 0.3313G' + 0.5B'
+
+ Cr = 0.5R' - 0.4187G' - 0.0813B'
+
+Y' is clamped to the range [0…1] and Cb and Cr are clamped to the range
+[-0.5…0.5]. The Y'CbCr quantization is limited range. This transform is
+identical to one defined in SMPTE 170M/BT.601.
+
+
+.. _col-jpeg:
+
+Colorspace JPEG (V4L2_COLORSPACE_JPEG)
+======================================
+
+This colorspace defines the colorspace used by most (Motion-)JPEG
+formats. The chromaticities of the primary colors and the white
+reference are identical to sRGB. The transfer function use is
+``V4L2_XFER_FUNC_SRGB``. The Y'CbCr encoding is ``V4L2_YCBCR_ENC_601``
+with full range quantization where Y' is scaled to [0…255] and Cb/Cr are
+scaled to [-128…128] and then clipped to [-128…127].
+
+.. note::
+
+ The JPEG standard does not actually store colorspace
+ information. So if something other than sRGB is used, then the driver
+ will have to set that information explicitly. Effectively
+ ``V4L2_COLORSPACE_JPEG`` can be considered to be an abbreviation for
+ ``V4L2_COLORSPACE_SRGB``, ``V4L2_YCBCR_ENC_601`` and
+ ``V4L2_QUANTIZATION_FULL_RANGE``.
+
+***************************************
+Detailed Transfer Function Descriptions
+***************************************
+
+.. _xf-smpte-2084:
+
+Transfer Function SMPTE 2084 (V4L2_XFER_FUNC_SMPTE2084)
+=======================================================
+
+The :ref:`smpte2084` standard defines the transfer function used by
+High Dynamic Range content.
+
+Constants:
+ m1 = (2610 / 4096) / 4
+
+ m2 = (2523 / 4096) * 128
+
+ c1 = 3424 / 4096
+
+ c2 = (2413 / 4096) * 32
+
+ c3 = (2392 / 4096) * 32
+
+Transfer function:
+ L' = ((c1 + c2 * L\ :sup:`m1`) / (1 + c3 * L\ :sup:`m1`))\ :sup:`m2`
+
+Inverse Transfer function:
+ L = (max(L':sup:`1/m2` - c1, 0) / (c2 - c3 *
+ L'\ :sup:`1/m2`))\ :sup:`1/m1`
+
+Take care when converting between this transfer function and non-HDR transfer
+functions: the linear RGB values [0…1] of HDR content map to a luminance range
+of 0 to 10000 cd/m\ :sup:`2` whereas the linear RGB values of non-HDR (aka
+Standard Dynamic Range or SDR) map to a luminance range of 0 to 100 cd/m\ :sup:`2`.
+
+To go from SDR to HDR you will have to divide L by 100 first. To go in the other
+direction you will have to multiply L by 100. Of course, this clamps all
+luminance values over 100 cd/m\ :sup:`2` to 100 cd/m\ :sup:`2`.
+
+There are better methods, see e.g. :ref:`colimg` for more in-depth information
+about this.
diff --git a/Documentation/media/uapi/v4l/constraints.svg b/Documentation/media/uapi/v4l/constraints.svg
index f710ee46b1f8..7e5d7185ca49 100644
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diff --git a/Documentation/media/uapi/v4l/control.rst b/Documentation/media/uapi/v4l/control.rst
index 51112badb804..c1e6adbe83d7 100644
--- a/Documentation/media/uapi/v4l/control.rst
+++ b/Documentation/media/uapi/v4l/control.rst
@@ -137,6 +137,12 @@ Control IDs
``V4L2_CID_GAIN`` ``(integer)``
Gain control.
+ Primarily used to control gain on e.g. TV tuners but also on
+ webcams. Most devices control only digital gain with this control
+ but on some this could include analogue gain as well. Devices that
+ recognise the difference between digital and analogue gain use
+ controls ``V4L2_CID_DIGITAL_GAIN`` and ``V4L2_CID_ANALOGUE_GAIN``.
+
``V4L2_CID_HFLIP`` ``(boolean)``
Mirror the picture horizontally.
diff --git a/Documentation/media/uapi/v4l/crop.svg b/Documentation/media/uapi/v4l/crop.svg
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- id="tspan142">v4l2_format</tspan></text>
+ transform="matrix(1,0,0,-1,309.415,30.34)"
+ style="font-variant:normal;font-weight:normal;font-size:6.61499977px;font-family:sans-serif;-inkscape-font-specification:sans-serif;writing-mode:lr-tb;fill:#b000b0;fill-opacity:1;fill-rule:nonzero;stroke:none"
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diff --git a/Documentation/media/uapi/v4l/dev-meta.rst b/Documentation/media/uapi/v4l/dev-meta.rst
index 62518adfe37b..f7ac8d0d3af1 100644
--- a/Documentation/media/uapi/v4l/dev-meta.rst
+++ b/Documentation/media/uapi/v4l/dev-meta.rst
@@ -42,6 +42,8 @@ the :c:type:`v4l2_format` structure to 0.
.. _v4l2-meta-format:
+.. tabularcolumns:: |p{1.4cm}|p{2.2cm}|p{13.9cm}|
+
.. flat-table:: struct v4l2_meta_format
:header-rows: 0
:stub-columns: 0
diff --git a/Documentation/media/uapi/v4l/dev-sliced-vbi.rst b/Documentation/media/uapi/v4l/dev-sliced-vbi.rst
index 5f6d534ea73b..9d6c860271cb 100644
--- a/Documentation/media/uapi/v4l/dev-sliced-vbi.rst
+++ b/Documentation/media/uapi/v4l/dev-sliced-vbi.rst
@@ -105,7 +105,13 @@ which may return ``EBUSY`` can be the
struct v4l2_sliced_vbi_format
-----------------------------
-.. tabularcolumns:: |p{1.0cm}|p{4.5cm}|p{4.0cm}|p{4.0cm}|p{4.0cm}|
+.. raw:: latex
+
+ \begingroup
+ \scriptsize
+ \setlength{\tabcolsep}{2pt}
+
+.. tabularcolumns:: |p{.75cm}|p{3.3cm}|p{3.4cm}|p{3.4cm}|p{3.4cm}|
.. cssclass:: longtable
@@ -199,6 +205,9 @@ struct v4l2_sliced_vbi_format
Applications and drivers must set it to zero.
+.. raw:: latex
+
+ \endgroup
.. _vbi-services2:
@@ -207,9 +216,9 @@ Sliced VBI services
.. raw:: latex
- \begin{adjustbox}{width=\columnwidth}
+ \footnotesize
-.. tabularcolumns:: |p{5.0cm}|p{1.4cm}|p{3.0cm}|p{2.5cm}|p{9.0cm}|
+.. tabularcolumns:: |p{4.1cm}|p{1.1cm}|p{2.4cm}|p{2.0cm}|p{7.3cm}|
.. flat-table::
:header-rows: 1
@@ -263,7 +272,7 @@ Sliced VBI services
.. raw:: latex
- \end{adjustbox}\newline\newline
+ \normalsize
Drivers may return an ``EINVAL`` error code when applications attempt to
@@ -457,7 +466,7 @@ number).
struct v4l2_mpeg_vbi_fmt_ivtv
-----------------------------
-.. tabularcolumns:: |p{1.0cm}|p{3.5cm}|p{1.0cm}|p{11.5cm}|
+.. tabularcolumns:: |p{1.0cm}|p{3.8cm}|p{1.0cm}|p{11.2cm}|
.. flat-table::
:header-rows: 0
@@ -525,7 +534,7 @@ Magic Constants for struct v4l2_mpeg_vbi_fmt_ivtv magic field
structs v4l2_mpeg_vbi_itv0 and v4l2_mpeg_vbi_ITV0
-------------------------------------------------
-.. tabularcolumns:: |p{4.4cm}|p{2.4cm}|p{10.7cm}|
+.. tabularcolumns:: |p{4.9cm}|p{2.4cm}|p{10.2cm}|
.. flat-table::
:header-rows: 0
@@ -574,7 +583,7 @@ structs v4l2_mpeg_vbi_itv0 and v4l2_mpeg_vbi_ITV0
struct v4l2_mpeg_vbi_ITV0
-------------------------
-.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
+.. tabularcolumns:: |p{4.9cm}|p{4.4cm}|p{8.2cm}|
.. flat-table::
:header-rows: 0
diff --git a/Documentation/media/uapi/v4l/dev-subdev.rst b/Documentation/media/uapi/v4l/dev-subdev.rst
index f0e762167730..d20d945803a7 100644
--- a/Documentation/media/uapi/v4l/dev-subdev.rst
+++ b/Documentation/media/uapi/v4l/dev-subdev.rst
@@ -204,9 +204,9 @@ list entity names and pad numbers).
.. raw:: latex
- \begin{adjustbox}{width=\columnwidth}
+ \tiny
-.. tabularcolumns:: |p{4.5cm}|p{4.5cm}|p{4.5cm}|p{4.5cm}|p{4.5cm}|p{4.5cm}|p{4.5cm}|
+.. tabularcolumns:: |p{2.0cm}|p{2.3cm}|p{2.3cm}|p{2.3cm}|p{2.3cm}|p{2.3cm}|p{2.3cm}|
.. _sample-pipeline-config:
@@ -253,7 +253,7 @@ list entity names and pad numbers).
.. raw:: latex
- \end{adjustbox}\newline\newline
+ \normalsize
1. Initial state. The sensor source pad format is set to its native 3MP
size and V4L2_MBUS_FMT_SGRBG8_1X8 media bus code. Formats on the
@@ -370,7 +370,7 @@ circumstances. This may also cause the accessed rectangle to be adjusted
by the driver, depending on the properties of the underlying hardware.
The coordinates to a step always refer to the actual size of the
-previous step. The exception to this rule is the source compose
+previous step. The exception to this rule is the sink compose
rectangle, which refers to the sink compose bounds rectangle --- if it
is supported by the hardware.
diff --git a/Documentation/media/uapi/v4l/driver.rst b/Documentation/media/uapi/v4l/driver.rst
deleted file mode 100644
index 2319b383f0a4..000000000000
--- a/Documentation/media/uapi/v4l/driver.rst
+++ /dev/null
@@ -1,9 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-.. _driver:
-
-***********************
-V4L2 Driver Programming
-***********************
-
-to do
diff --git a/Documentation/media/uapi/v4l/extended-controls.rst b/Documentation/media/uapi/v4l/extended-controls.rst
index abb105724c05..a3e81c1d276b 100644
--- a/Documentation/media/uapi/v4l/extended-controls.rst
+++ b/Documentation/media/uapi/v4l/extended-controls.rst
@@ -942,21 +942,21 @@ enum v4l2_mpeg_video_mpeg4_level -
:header-rows: 0
:stub-columns: 0
- * - ``V4L2_MPEG_VIDEO_LEVEL_0``
+ * - ``V4L2_MPEG_VIDEO_MPEG4_LEVEL_0``
- Level 0
- * - ``V4L2_MPEG_VIDEO_LEVEL_0B``
+ * - ``V4L2_MPEG_VIDEO_MPEG4_LEVEL_0B``
- Level 0b
- * - ``V4L2_MPEG_VIDEO_LEVEL_1``
+ * - ``V4L2_MPEG_VIDEO_MPEG4_LEVEL_1``
- Level 1
- * - ``V4L2_MPEG_VIDEO_LEVEL_2``
+ * - ``V4L2_MPEG_VIDEO_MPEG4_LEVEL_2``
- Level 2
- * - ``V4L2_MPEG_VIDEO_LEVEL_3``
+ * - ``V4L2_MPEG_VIDEO_MPEG4_LEVEL_3``
- Level 3
- * - ``V4L2_MPEG_VIDEO_LEVEL_3B``
+ * - ``V4L2_MPEG_VIDEO_MPEG4_LEVEL_3B``
- Level 3b
- * - ``V4L2_MPEG_VIDEO_LEVEL_4``
+ * - ``V4L2_MPEG_VIDEO_MPEG4_LEVEL_4``
- Level 4
- * - ``V4L2_MPEG_VIDEO_LEVEL_5``
+ * - ``V4L2_MPEG_VIDEO_MPEG4_LEVEL_5``
- Level 5
@@ -1028,15 +1028,15 @@ enum v4l2_mpeg_video_mpeg4_profile -
:header-rows: 0
:stub-columns: 0
- * - ``V4L2_MPEG_VIDEO_PROFILE_SIMPLE``
+ * - ``V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE``
- Simple profile
- * - ``V4L2_MPEG_VIDEO_PROFILE_ADVANCED_SIMPLE``
+ * - ``V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_SIMPLE``
- Advanced Simple profile
- * - ``V4L2_MPEG_VIDEO_PROFILE_CORE``
+ * - ``V4L2_MPEG_VIDEO_MPEG4_PROFILE_CORE``
- Core profile
- * - ``V4L2_MPEG_VIDEO_PROFILE_SIMPLE_SCALABLE``
+ * - ``V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE_SCALABLE``
- Simple Scalable profile
- * - ``V4L2_MPEG_VIDEO_PROFILE_ADVANCED_CODING_EFFICIENCY``
+ * - ``V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY``
-
@@ -1922,9 +1922,9 @@ enum v4l2_vp8_golden_frame_sel -
.. raw:: latex
- \begin{adjustbox}{width=\columnwidth}
+ \footnotesize
-.. tabularcolumns:: |p{11.0cm}|p{10.0cm}|
+.. tabularcolumns:: |p{9.0cm}|p{8.0cm}|
.. flat-table::
:header-rows: 0
@@ -1940,7 +1940,7 @@ enum v4l2_vp8_golden_frame_sel -
.. raw:: latex
- \end{adjustbox}
+ \normalsize
``V4L2_CID_MPEG_VIDEO_VPX_MIN_QP (integer)``
@@ -2019,7 +2019,7 @@ enum v4l2_exposure_auto_type -
dynamically vary the frame rate. By default this feature is disabled
(0) and the frame rate must remain constant.
-``V4L2_CID_EXPOSURE_BIAS (integer menu)``
+``V4L2_CID_AUTO_EXPOSURE_BIAS (integer menu)``
Determines the automatic exposure compensation, it is effective only
when ``V4L2_CID_EXPOSURE_AUTO`` control is set to ``AUTO``,
``SHUTTER_PRIORITY`` or ``APERTURE_PRIORITY``. It is expressed in
@@ -3021,6 +3021,13 @@ Image Process Control IDs
The video deinterlacing mode (such as Bob, Weave, ...). The menu items are
driver specific and are documented in :ref:`v4l-drivers`.
+``V4L2_CID_DIGITAL_GAIN (integer)``
+ Digital gain is the value by which all colour components
+ are multiplied by. Typically the digital gain applied is the
+ control value divided by e.g. 0x100, meaning that to get no
+ digital gain the control value needs to be 0x100. The no-gain
+ configuration is also typically the default.
+
.. _dv-controls:
diff --git a/Documentation/media/uapi/v4l/fieldseq_bt.svg b/Documentation/media/uapi/v4l/fieldseq_bt.svg
index b195301771ce..909d758f8543 100644
--- a/Documentation/media/uapi/v4l/fieldseq_bt.svg
+++ b/Documentation/media/uapi/v4l/fieldseq_bt.svg
@@ -42,15 +42,15 @@
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+ rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
+ rdf:resource="http://purl.org/dc/dcmitype/StillImage" /><dc:title /></cc:Work></rdf:RDF></metadata><defs
id="defs3623"><clipPath
id="clipPath4301"
clipPathUnits="userSpaceOnUse"><path
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diff --git a/Documentation/media/uapi/v4l/format.rst b/Documentation/media/uapi/v4l/format.rst
index 452c6d59cad5..3e3efb0e349e 100644
--- a/Documentation/media/uapi/v4l/format.rst
+++ b/Documentation/media/uapi/v4l/format.rst
@@ -78,7 +78,7 @@ output devices is available. [#f1]_
The :ref:`VIDIOC_ENUM_FMT` ioctl must be supported
by all drivers exchanging image data with applications.
- **Important**
+.. important::
Drivers are not supposed to convert image formats in kernel space.
They must enumerate only formats directly supported by the hardware.
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diff --git a/Documentation/media/uapi/v4l/pixfmt-006.rst b/Documentation/media/uapi/v4l/pixfmt-006.rst
deleted file mode 100644
index 7ae7dcf73f63..000000000000
--- a/Documentation/media/uapi/v4l/pixfmt-006.rst
+++ /dev/null
@@ -1,174 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-****************************
-Defining Colorspaces in V4L2
-****************************
-
-In V4L2 colorspaces are defined by four values. The first is the
-colorspace identifier (enum :c:type:`v4l2_colorspace`)
-which defines the chromaticities, the default transfer function, the
-default Y'CbCr encoding and the default quantization method. The second
-is the transfer function identifier (enum
-:c:type:`v4l2_xfer_func`) to specify non-standard
-transfer functions. The third is the Y'CbCr encoding identifier (enum
-:c:type:`v4l2_ycbcr_encoding`) to specify
-non-standard Y'CbCr encodings and the fourth is the quantization
-identifier (enum :c:type:`v4l2_quantization`) to
-specify non-standard quantization methods. Most of the time only the
-colorspace field of struct :c:type:`v4l2_pix_format`
-or struct :c:type:`v4l2_pix_format_mplane`
-needs to be filled in.
-
-.. _hsv-colorspace:
-
-On :ref:`HSV formats <hsv-formats>` the *Hue* is defined as the angle on
-the cylindrical color representation. Usually this angle is measured in
-degrees, i.e. 0-360. When we map this angle value into 8 bits, there are
-two basic ways to do it: Divide the angular value by 2 (0-179), or use the
-whole range, 0-255, dividing the angular value by 1.41. The enum
-:c:type:`v4l2_hsv_encoding` specifies which encoding is used.
-
-.. note:: The default R'G'B' quantization is full range for all
- colorspaces except for BT.2020 which uses limited range R'G'B'
- quantization.
-
-.. tabularcolumns:: |p{6.0cm}|p{11.5cm}|
-
-.. c:type:: v4l2_colorspace
-
-.. flat-table:: V4L2 Colorspaces
- :header-rows: 1
- :stub-columns: 0
-
- * - Identifier
- - Details
- * - ``V4L2_COLORSPACE_DEFAULT``
- - The default colorspace. This can be used by applications to let
- the driver fill in the colorspace.
- * - ``V4L2_COLORSPACE_SMPTE170M``
- - See :ref:`col-smpte-170m`.
- * - ``V4L2_COLORSPACE_REC709``
- - See :ref:`col-rec709`.
- * - ``V4L2_COLORSPACE_SRGB``
- - See :ref:`col-srgb`.
- * - ``V4L2_COLORSPACE_ADOBERGB``
- - See :ref:`col-adobergb`.
- * - ``V4L2_COLORSPACE_BT2020``
- - See :ref:`col-bt2020`.
- * - ``V4L2_COLORSPACE_DCI_P3``
- - See :ref:`col-dcip3`.
- * - ``V4L2_COLORSPACE_SMPTE240M``
- - See :ref:`col-smpte-240m`.
- * - ``V4L2_COLORSPACE_470_SYSTEM_M``
- - See :ref:`col-sysm`.
- * - ``V4L2_COLORSPACE_470_SYSTEM_BG``
- - See :ref:`col-sysbg`.
- * - ``V4L2_COLORSPACE_JPEG``
- - See :ref:`col-jpeg`.
- * - ``V4L2_COLORSPACE_RAW``
- - The raw colorspace. This is used for raw image capture where the
- image is minimally processed and is using the internal colorspace
- of the device. The software that processes an image using this
- 'colorspace' will have to know the internals of the capture
- device.
-
-
-
-.. c:type:: v4l2_xfer_func
-
-.. flat-table:: V4L2 Transfer Function
- :header-rows: 1
- :stub-columns: 0
-
- * - Identifier
- - Details
- * - ``V4L2_XFER_FUNC_DEFAULT``
- - Use the default transfer function as defined by the colorspace.
- * - ``V4L2_XFER_FUNC_709``
- - Use the Rec. 709 transfer function.
- * - ``V4L2_XFER_FUNC_SRGB``
- - Use the sRGB transfer function.
- * - ``V4L2_XFER_FUNC_ADOBERGB``
- - Use the AdobeRGB transfer function.
- * - ``V4L2_XFER_FUNC_SMPTE240M``
- - Use the SMPTE 240M transfer function.
- * - ``V4L2_XFER_FUNC_NONE``
- - Do not use a transfer function (i.e. use linear RGB values).
- * - ``V4L2_XFER_FUNC_DCI_P3``
- - Use the DCI-P3 transfer function.
- * - ``V4L2_XFER_FUNC_SMPTE2084``
- - Use the SMPTE 2084 transfer function.
-
-
-
-.. c:type:: v4l2_ycbcr_encoding
-
-.. tabularcolumns:: |p{6.5cm}|p{11.0cm}|
-
-.. flat-table:: V4L2 Y'CbCr Encodings
- :header-rows: 1
- :stub-columns: 0
-
- * - Identifier
- - Details
- * - ``V4L2_YCBCR_ENC_DEFAULT``
- - Use the default Y'CbCr encoding as defined by the colorspace.
- * - ``V4L2_YCBCR_ENC_601``
- - Use the BT.601 Y'CbCr encoding.
- * - ``V4L2_YCBCR_ENC_709``
- - Use the Rec. 709 Y'CbCr encoding.
- * - ``V4L2_YCBCR_ENC_XV601``
- - Use the extended gamut xvYCC BT.601 encoding.
- * - ``V4L2_YCBCR_ENC_XV709``
- - Use the extended gamut xvYCC Rec. 709 encoding.
- * - ``V4L2_YCBCR_ENC_BT2020``
- - Use the default non-constant luminance BT.2020 Y'CbCr encoding.
- * - ``V4L2_YCBCR_ENC_BT2020_CONST_LUM``
- - Use the constant luminance BT.2020 Yc'CbcCrc encoding.
- * - ``V4L2_YCBCR_ENC_SMPTE_240M``
- - Use the SMPTE 240M Y'CbCr encoding.
-
-
-
-.. c:type:: v4l2_hsv_encoding
-
-.. tabularcolumns:: |p{6.5cm}|p{11.0cm}|
-
-.. flat-table:: V4L2 HSV Encodings
- :header-rows: 1
- :stub-columns: 0
-
- * - Identifier
- - Details
- * - ``V4L2_HSV_ENC_180``
- - For the Hue, each LSB is two degrees.
- * - ``V4L2_HSV_ENC_256``
- - For the Hue, the 360 degrees are mapped into 8 bits, i.e. each
- LSB is roughly 1.41 degrees.
-
-
-
-.. c:type:: v4l2_quantization
-
-.. tabularcolumns:: |p{6.5cm}|p{11.0cm}|
-
-.. flat-table:: V4L2 Quantization Methods
- :header-rows: 1
- :stub-columns: 0
-
- * - Identifier
- - Details
- * - ``V4L2_QUANTIZATION_DEFAULT``
- - Use the default quantization encoding as defined by the
- colorspace. This is always full range for R'G'B' (except for the
- BT.2020 colorspace) and HSV. It is usually limited range for Y'CbCr.
- * - ``V4L2_QUANTIZATION_FULL_RANGE``
- - Use the full range quantization encoding. I.e. the range [0…1] is
- mapped to [0…255] (with possible clipping to [1…254] to avoid the
- 0x00 and 0xff values). Cb and Cr are mapped from [-0.5…0.5] to
- [0…255] (with possible clipping to [1…254] to avoid the 0x00 and
- 0xff values).
- * - ``V4L2_QUANTIZATION_LIM_RANGE``
- - Use the limited range quantization encoding. I.e. the range [0…1]
- is mapped to [16…235]. Cb and Cr are mapped from [-0.5…0.5] to
- [16…240].
diff --git a/Documentation/media/uapi/v4l/pixfmt-007.rst b/Documentation/media/uapi/v4l/pixfmt-007.rst
deleted file mode 100644
index 0c30ee2577d3..000000000000
--- a/Documentation/media/uapi/v4l/pixfmt-007.rst
+++ /dev/null
@@ -1,760 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-********************************
-Detailed Colorspace Descriptions
-********************************
-
-
-.. _col-smpte-170m:
-
-Colorspace SMPTE 170M (V4L2_COLORSPACE_SMPTE170M)
-=================================================
-
-The :ref:`smpte170m` standard defines the colorspace used by NTSC and
-PAL and by SDTV in general. The default transfer function is
-``V4L2_XFER_FUNC_709``. The default Y'CbCr encoding is
-``V4L2_YCBCR_ENC_601``. The default Y'CbCr quantization is limited
-range. The chromaticities of the primary colors and the white reference
-are:
-
-
-
-.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
-
-.. flat-table:: SMPTE 170M Chromaticities
- :header-rows: 1
- :stub-columns: 0
- :widths: 1 1 2
-
- * - Color
- - x
- - y
- * - Red
- - 0.630
- - 0.340
- * - Green
- - 0.310
- - 0.595
- * - Blue
- - 0.155
- - 0.070
- * - White Reference (D65)
- - 0.3127
- - 0.3290
-
-
-The red, green and blue chromaticities are also often referred to as the
-SMPTE C set, so this colorspace is sometimes called SMPTE C as well.
-
-The transfer function defined for SMPTE 170M is the same as the one
-defined in Rec. 709.
-
-.. math::
-
- L' = -1.099(-L)^{0.45} + 0.099 \text{, for } L \le-0.018
-
- L' = 4.5L \text{, for } -0.018 < L < 0.018
-
- L' = 1.099L^{0.45} - 0.099 \text{, for } L \ge 0.018
-
-Inverse Transfer function:
-
-.. math::
-
- L = -\left( \frac{L' - 0.099}{-1.099} \right) ^{\frac{1}{0.45}} \text{, for } L' \le -0.081
-
- L = \frac{L'}{4.5} \text{, for } -0.081 < L' < 0.081
-
- L = \left(\frac{L' + 0.099}{1.099}\right)^{\frac{1}{0.45} } \text{, for } L' \ge 0.081
-
-The luminance (Y') and color difference (Cb and Cr) are obtained with
-the following ``V4L2_YCBCR_ENC_601`` encoding:
-
-.. math::
-
- Y' = 0.2990R' + 0.5870G' + 0.1140B'
-
- Cb = -0.1687R' - 0.3313G' + 0.5B'
-
- Cr = 0.5R' - 0.4187G' - 0.0813B'
-
-Y' is clamped to the range [0…1] and Cb and Cr are clamped to the range
-[-0.5…0.5]. This conversion to Y'CbCr is identical to the one defined in
-the :ref:`itu601` standard and this colorspace is sometimes called
-BT.601 as well, even though BT.601 does not mention any color primaries.
-
-The default quantization is limited range, but full range is possible
-although rarely seen.
-
-
-.. _col-rec709:
-
-Colorspace Rec. 709 (V4L2_COLORSPACE_REC709)
-============================================
-
-The :ref:`itu709` standard defines the colorspace used by HDTV in
-general. The default transfer function is ``V4L2_XFER_FUNC_709``. The
-default Y'CbCr encoding is ``V4L2_YCBCR_ENC_709``. The default Y'CbCr
-quantization is limited range. The chromaticities of the primary colors
-and the white reference are:
-
-
-
-.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
-
-.. flat-table:: Rec. 709 Chromaticities
- :header-rows: 1
- :stub-columns: 0
- :widths: 1 1 2
-
- * - Color
- - x
- - y
- * - Red
- - 0.640
- - 0.330
- * - Green
- - 0.300
- - 0.600
- * - Blue
- - 0.150
- - 0.060
- * - White Reference (D65)
- - 0.3127
- - 0.3290
-
-
-The full name of this standard is Rec. ITU-R BT.709-5.
-
-Transfer function. Normally L is in the range [0…1], but for the
-extended gamut xvYCC encoding values outside that range are allowed.
-
-.. math::
-
- L' = -1.099(-L)^{0.45} + 0.099 \text{, for } L \le -0.018
-
- L' = 4.5L \text{, for } -0.018 < L < 0.018
-
- L' = 1.099L^{0.45} - 0.099 \text{, for } L \ge 0.018
-
-Inverse Transfer function:
-
-.. math::
-
- L = -\left( \frac{L' - 0.099}{-1.099} \right)^\frac{1}{0.45} \text{, for } L' \le -0.081
-
- L = \frac{L'}{4.5}\text{, for } -0.081 < L' < 0.081
-
- L = \left(\frac{L' + 0.099}{1.099}\right)^{\frac{1}{0.45} } \text{, for } L' \ge 0.081
-
-The luminance (Y') and color difference (Cb and Cr) are obtained with
-the following ``V4L2_YCBCR_ENC_709`` encoding:
-
-.. math::
-
- Y' = 0.2126R' + 0.7152G' + 0.0722B'
-
- Cb = -0.1146R' - 0.3854G' + 0.5B'
-
- Cr = 0.5R' - 0.4542G' - 0.0458B'
-
-Y' is clamped to the range [0…1] and Cb and Cr are clamped to the range
-[-0.5…0.5].
-
-The default quantization is limited range, but full range is possible
-although rarely seen.
-
-The ``V4L2_YCBCR_ENC_709`` encoding described above is the default for
-this colorspace, but it can be overridden with ``V4L2_YCBCR_ENC_601``,
-in which case the BT.601 Y'CbCr encoding is used.
-
-Two additional extended gamut Y'CbCr encodings are also possible with
-this colorspace:
-
-The xvYCC 709 encoding (``V4L2_YCBCR_ENC_XV709``, :ref:`xvycc`) is
-similar to the Rec. 709 encoding, but it allows for R', G' and B' values
-that are outside the range [0…1]. The resulting Y', Cb and Cr values are
-scaled and offset according to the limited range formula:
-
-.. math::
-
- Y' = \frac{219}{256} * (0.2126R' + 0.7152G' + 0.0722B') + \frac{16}{256}
-
- Cb = \frac{224}{256} * (-0.1146R' - 0.3854G' + 0.5B')
-
- Cr = \frac{224}{256} * (0.5R' - 0.4542G' - 0.0458B')
-
-The xvYCC 601 encoding (``V4L2_YCBCR_ENC_XV601``, :ref:`xvycc`) is
-similar to the BT.601 encoding, but it allows for R', G' and B' values
-that are outside the range [0…1]. The resulting Y', Cb and Cr values are
-scaled and offset according to the limited range formula:
-
-.. math::
-
- Y' = \frac{219}{256} * (0.2990R' + 0.5870G' + 0.1140B') + \frac{16}{256}
-
- Cb = \frac{224}{256} * (-0.1687R' - 0.3313G' + 0.5B')
-
- Cr = \frac{224}{256} * (0.5R' - 0.4187G' - 0.0813B')
-
-Y' is clamped to the range [0…1] and Cb and Cr are clamped to the range
-[-0.5…0.5] and quantized without further scaling or offsets.
-The non-standard xvYCC 709 or xvYCC 601 encodings can be
-used by selecting ``V4L2_YCBCR_ENC_XV709`` or ``V4L2_YCBCR_ENC_XV601``.
-As seen by the xvYCC formulas these encodings always use limited range quantization,
-there is no full range variant. The whole point of these extended gamut encodings
-is that values outside the limited range are still valid, although they
-map to R', G' and B' values outside the [0…1] range and are therefore outside
-the Rec. 709 colorspace gamut.
-
-
-.. _col-srgb:
-
-Colorspace sRGB (V4L2_COLORSPACE_SRGB)
-======================================
-
-The :ref:`srgb` standard defines the colorspace used by most webcams
-and computer graphics. The default transfer function is
-``V4L2_XFER_FUNC_SRGB``. The default Y'CbCr encoding is
-``V4L2_YCBCR_ENC_601``. The default Y'CbCr quantization is limited range.
-
-Note that the :ref:`sycc` standard specifies full range quantization,
-however all current capture hardware supported by the kernel convert
-R'G'B' to limited range Y'CbCr. So choosing full range as the default
-would break how applications interpret the quantization range.
-
-The chromaticities of the primary colors and the white reference are:
-
-
-
-.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
-
-.. flat-table:: sRGB Chromaticities
- :header-rows: 1
- :stub-columns: 0
- :widths: 1 1 2
-
- * - Color
- - x
- - y
- * - Red
- - 0.640
- - 0.330
- * - Green
- - 0.300
- - 0.600
- * - Blue
- - 0.150
- - 0.060
- * - White Reference (D65)
- - 0.3127
- - 0.3290
-
-
-These chromaticities are identical to the Rec. 709 colorspace.
-
-Transfer function. Note that negative values for L are only used by the
-Y'CbCr conversion.
-
-.. math::
-
- L' = -1.055(-L)^{\frac{1}{2.4} } + 0.055\text{, for }L < -0.0031308
-
- L' = 12.92L\text{, for }-0.0031308 \le L \le 0.0031308
-
- L' = 1.055L ^{\frac{1}{2.4} } - 0.055\text{, for }0.0031308 < L \le 1
-
-Inverse Transfer function:
-
-.. math::
-
- L = -((-L' + 0.055) / 1.055) ^{2.4}\text{, for }L' < -0.04045
-
- L = L' / 12.92\text{, for }-0.04045 \le L' \le 0.04045
-
- L = ((L' + 0.055) / 1.055) ^{2.4}\text{, for }L' > 0.04045
-
-The luminance (Y') and color difference (Cb and Cr) are obtained with
-the following ``V4L2_YCBCR_ENC_601`` encoding as defined by :ref:`sycc`:
-
-.. math::
-
- Y' = 0.2990R' + 0.5870G' + 0.1140B'
-
- Cb = -0.1687R' - 0.3313G' + 0.5B'
-
- Cr = 0.5R' - 0.4187G' - 0.0813B'
-
-Y' is clamped to the range [0…1] and Cb and Cr are clamped to the range
-[-0.5…0.5]. This transform is identical to one defined in SMPTE
-170M/BT.601. The Y'CbCr quantization is limited range.
-
-
-.. _col-adobergb:
-
-Colorspace Adobe RGB (V4L2_COLORSPACE_ADOBERGB)
-===============================================
-
-The :ref:`adobergb` standard defines the colorspace used by computer
-graphics that use the AdobeRGB colorspace. This is also known as the
-:ref:`oprgb` standard. The default transfer function is
-``V4L2_XFER_FUNC_ADOBERGB``. The default Y'CbCr encoding is
-``V4L2_YCBCR_ENC_601``. The default Y'CbCr quantization is limited
-range.
-
-Note that the :ref:`oprgb` standard specifies full range quantization,
-however all current capture hardware supported by the kernel convert
-R'G'B' to limited range Y'CbCr. So choosing full range as the default
-would break how applications interpret the quantization range.
-
-The chromaticities of the primary colors and the white reference are:
-
-
-.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
-
-.. flat-table:: Adobe RGB Chromaticities
- :header-rows: 1
- :stub-columns: 0
- :widths: 1 1 2
-
- * - Color
- - x
- - y
- * - Red
- - 0.6400
- - 0.3300
- * - Green
- - 0.2100
- - 0.7100
- * - Blue
- - 0.1500
- - 0.0600
- * - White Reference (D65)
- - 0.3127
- - 0.3290
-
-
-
-Transfer function:
-
-.. math::
-
- L' = L ^{\frac{1}{2.19921875}}
-
-Inverse Transfer function:
-
-.. math::
-
- L = L'^{(2.19921875)}
-
-The luminance (Y') and color difference (Cb and Cr) are obtained with
-the following ``V4L2_YCBCR_ENC_601`` encoding:
-
-.. math::
-
- Y' = 0.2990R' + 0.5870G' + 0.1140B'
-
- Cb = -0.1687R' - 0.3313G' + 0.5B'
-
- Cr = 0.5R' - 0.4187G' - 0.0813B'
-
-Y' is clamped to the range [0…1] and Cb and Cr are clamped to the range
-[-0.5…0.5]. This transform is identical to one defined in SMPTE
-170M/BT.601. The Y'CbCr quantization is limited range.
-
-
-.. _col-bt2020:
-
-Colorspace BT.2020 (V4L2_COLORSPACE_BT2020)
-===========================================
-
-The :ref:`itu2020` standard defines the colorspace used by Ultra-high
-definition television (UHDTV). The default transfer function is
-``V4L2_XFER_FUNC_709``. The default Y'CbCr encoding is
-``V4L2_YCBCR_ENC_BT2020``. The default R'G'B' quantization is limited
-range (!), and so is the default Y'CbCr quantization. The chromaticities
-of the primary colors and the white reference are:
-
-
-
-.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
-
-.. flat-table:: BT.2020 Chromaticities
- :header-rows: 1
- :stub-columns: 0
- :widths: 1 1 2
-
- * - Color
- - x
- - y
- * - Red
- - 0.708
- - 0.292
- * - Green
- - 0.170
- - 0.797
- * - Blue
- - 0.131
- - 0.046
- * - White Reference (D65)
- - 0.3127
- - 0.3290
-
-
-
-Transfer function (same as Rec. 709):
-
-.. math::
-
- L' = 4.5L\text{, for }0 \le L < 0.018
-
- L' = 1.099L ^{0.45} - 0.099\text{, for } 0.018 \le L \le 1
-
-Inverse Transfer function:
-
-.. math::
-
- L = L' / 4.5\text{, for } L' < 0.081
-
- L = \left( \frac{L' + 0.099}{1.099}\right) ^{\frac{1}{0.45} }\text{, for } L' \ge 0.081
-
-The luminance (Y') and color difference (Cb and Cr) are obtained with
-the following ``V4L2_YCBCR_ENC_BT2020`` encoding:
-
-.. math::
-
- Y' = 0.2627R' + 0.6780G' + 0.0593B'
-
- Cb = -0.1396R' - 0.3604G' + 0.5B'
-
- Cr = 0.5R' - 0.4598G' - 0.0402B'
-
-Y' is clamped to the range [0…1] and Cb and Cr are clamped to the range
-[-0.5…0.5]. The Y'CbCr quantization is limited range.
-
-There is also an alternate constant luminance R'G'B' to Yc'CbcCrc
-(``V4L2_YCBCR_ENC_BT2020_CONST_LUM``) encoding:
-
-Luma:
-
-.. math::
- :nowrap:
-
- \begin{align*}
- Yc' = (0.2627R + 0.6780G + 0.0593B)'& \\
- B' - Yc' \le 0:& \\
- &Cbc = (B' - Yc') / 1.9404 \\
- B' - Yc' > 0: & \\
- &Cbc = (B' - Yc') / 1.5816 \\
- R' - Yc' \le 0:& \\
- &Crc = (R' - Y') / 1.7184 \\
- R' - Yc' > 0:& \\
- &Crc = (R' - Y') / 0.9936
- \end{align*}
-
-Yc' is clamped to the range [0…1] and Cbc and Crc are clamped to the
-range [-0.5…0.5]. The Yc'CbcCrc quantization is limited range.
-
-
-.. _col-dcip3:
-
-Colorspace DCI-P3 (V4L2_COLORSPACE_DCI_P3)
-==========================================
-
-The :ref:`smpte431` standard defines the colorspace used by cinema
-projectors that use the DCI-P3 colorspace. The default transfer function
-is ``V4L2_XFER_FUNC_DCI_P3``. The default Y'CbCr encoding is
-``V4L2_YCBCR_ENC_709``. The default Y'CbCr quantization is limited range.
-
-.. note::
-
- Note that this colorspace standard does not specify a
- Y'CbCr encoding since it is not meant to be encoded to Y'CbCr. So this
- default Y'CbCr encoding was picked because it is the HDTV encoding.
-
-The chromaticities of the primary colors and the white reference are:
-
-
-
-.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
-
-.. flat-table:: DCI-P3 Chromaticities
- :header-rows: 1
- :stub-columns: 0
- :widths: 1 1 2
-
- * - Color
- - x
- - y
- * - Red
- - 0.6800
- - 0.3200
- * - Green
- - 0.2650
- - 0.6900
- * - Blue
- - 0.1500
- - 0.0600
- * - White Reference
- - 0.3140
- - 0.3510
-
-
-
-Transfer function:
-
-.. math::
-
- L' = L^{\frac{1}{2.6}}
-
-Inverse Transfer function:
-
-.. math::
-
- L = L'^{(2.6)}
-
-Y'CbCr encoding is not specified. V4L2 defaults to Rec. 709.
-
-
-.. _col-smpte-240m:
-
-Colorspace SMPTE 240M (V4L2_COLORSPACE_SMPTE240M)
-=================================================
-
-The :ref:`smpte240m` standard was an interim standard used during the
-early days of HDTV (1988-1998). It has been superseded by Rec. 709. The
-default transfer function is ``V4L2_XFER_FUNC_SMPTE240M``. The default
-Y'CbCr encoding is ``V4L2_YCBCR_ENC_SMPTE240M``. The default Y'CbCr
-quantization is limited range. The chromaticities of the primary colors
-and the white reference are:
-
-
-
-.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
-
-.. flat-table:: SMPTE 240M Chromaticities
- :header-rows: 1
- :stub-columns: 0
- :widths: 1 1 2
-
- * - Color
- - x
- - y
- * - Red
- - 0.630
- - 0.340
- * - Green
- - 0.310
- - 0.595
- * - Blue
- - 0.155
- - 0.070
- * - White Reference (D65)
- - 0.3127
- - 0.3290
-
-
-These chromaticities are identical to the SMPTE 170M colorspace.
-
-Transfer function:
-
-.. math::
-
- L' = 4L\text{, for } 0 \le L < 0.0228
-
- L' = 1.1115L ^{0.45} - 0.1115\text{, for } 0.0228 \le L \le 1
-
-Inverse Transfer function:
-
-.. math::
-
- L = \frac{L'}{4}\text{, for } 0 \le L' < 0.0913
-
- L = \left( \frac{L' + 0.1115}{1.1115}\right) ^{\frac{1}{0.45} }\text{, for } L' \ge 0.0913
-
-The luminance (Y') and color difference (Cb and Cr) are obtained with
-the following ``V4L2_YCBCR_ENC_SMPTE240M`` encoding:
-
-.. math::
-
- Y' = 0.2122R' + 0.7013G' + 0.0865B'
-
- Cb = -0.1161R' - 0.3839G' + 0.5B'
-
- Cr = 0.5R' - 0.4451G' - 0.0549B'
-
-Y' is clamped to the range [0…1] and Cb and Cr are clamped to the
-range [-0.5…0.5]. The Y'CbCr quantization is limited range.
-
-
-.. _col-sysm:
-
-Colorspace NTSC 1953 (V4L2_COLORSPACE_470_SYSTEM_M)
-===================================================
-
-This standard defines the colorspace used by NTSC in 1953. In practice
-this colorspace is obsolete and SMPTE 170M should be used instead. The
-default transfer function is ``V4L2_XFER_FUNC_709``. The default Y'CbCr
-encoding is ``V4L2_YCBCR_ENC_601``. The default Y'CbCr quantization is
-limited range. The chromaticities of the primary colors and the white
-reference are:
-
-
-
-.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
-
-.. flat-table:: NTSC 1953 Chromaticities
- :header-rows: 1
- :stub-columns: 0
- :widths: 1 1 2
-
- * - Color
- - x
- - y
- * - Red
- - 0.67
- - 0.33
- * - Green
- - 0.21
- - 0.71
- * - Blue
- - 0.14
- - 0.08
- * - White Reference (C)
- - 0.310
- - 0.316
-
-
-.. note::
-
- This colorspace uses Illuminant C instead of D65 as the white
- reference. To correctly convert an image in this colorspace to another
- that uses D65 you need to apply a chromatic adaptation algorithm such as
- the Bradford method.
-
-The transfer function was never properly defined for NTSC 1953. The Rec.
-709 transfer function is recommended in the literature:
-
-.. math::
-
- L' = 4.5L\text{, for } 0 \le L < 0.018
-
- L' = 1.099L ^{0.45} - 0.099\text{, for } 0.018 \le L \le 1
-
-Inverse Transfer function:
-
-.. math::
-
- L = \frac{L'}{4.5} \text{, for } L' < 0.081
-
- L = \left( \frac{L' + 0.099}{1.099}\right) ^{\frac{1}{0.45} }\text{, for } L' \ge 0.081
-
-The luminance (Y') and color difference (Cb and Cr) are obtained with
-the following ``V4L2_YCBCR_ENC_601`` encoding:
-
-.. math::
-
- Y' = 0.2990R' + 0.5870G' + 0.1140B'
-
- Cb = -0.1687R' - 0.3313G' + 0.5B'
-
- Cr = 0.5R' - 0.4187G' - 0.0813B'
-
-Y' is clamped to the range [0…1] and Cb and Cr are clamped to the range
-[-0.5…0.5]. The Y'CbCr quantization is limited range. This transform is
-identical to one defined in SMPTE 170M/BT.601.
-
-
-.. _col-sysbg:
-
-Colorspace EBU Tech. 3213 (V4L2_COLORSPACE_470_SYSTEM_BG)
-=========================================================
-
-The :ref:`tech3213` standard defines the colorspace used by PAL/SECAM
-in 1975. In practice this colorspace is obsolete and SMPTE 170M should
-be used instead. The default transfer function is
-``V4L2_XFER_FUNC_709``. The default Y'CbCr encoding is
-``V4L2_YCBCR_ENC_601``. The default Y'CbCr quantization is limited
-range. The chromaticities of the primary colors and the white reference
-are:
-
-
-
-.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
-
-.. flat-table:: EBU Tech. 3213 Chromaticities
- :header-rows: 1
- :stub-columns: 0
- :widths: 1 1 2
-
- * - Color
- - x
- - y
- * - Red
- - 0.64
- - 0.33
- * - Green
- - 0.29
- - 0.60
- * - Blue
- - 0.15
- - 0.06
- * - White Reference (D65)
- - 0.3127
- - 0.3290
-
-
-
-The transfer function was never properly defined for this colorspace.
-The Rec. 709 transfer function is recommended in the literature:
-
-.. math::
-
- L' = 4.5L\text{, for } 0 \le L < 0.018
-
- L' = 1.099L ^{0.45} - 0.099\text{, for } 0.018 \le L \le 1
-
-Inverse Transfer function:
-
-.. math::
-
- L = \frac{L'}{4.5} \text{, for } L' < 0.081
-
- L = \left(\frac{L' + 0.099}{1.099} \right) ^{\frac{1}{0.45} }\text{, for } L' \ge 0.081
-
-The luminance (Y') and color difference (Cb and Cr) are obtained with
-the following ``V4L2_YCBCR_ENC_601`` encoding:
-
-.. math::
-
- Y' = 0.2990R' + 0.5870G' + 0.1140B'
-
- Cb = -0.1687R' - 0.3313G' + 0.5B'
-
- Cr = 0.5R' - 0.4187G' - 0.0813B'
-
-Y' is clamped to the range [0…1] and Cb and Cr are clamped to the range
-[-0.5…0.5]. The Y'CbCr quantization is limited range. This transform is
-identical to one defined in SMPTE 170M/BT.601.
-
-
-.. _col-jpeg:
-
-Colorspace JPEG (V4L2_COLORSPACE_JPEG)
-======================================
-
-This colorspace defines the colorspace used by most (Motion-)JPEG
-formats. The chromaticities of the primary colors and the white
-reference are identical to sRGB. The transfer function use is
-``V4L2_XFER_FUNC_SRGB``. The Y'CbCr encoding is ``V4L2_YCBCR_ENC_601``
-with full range quantization where Y' is scaled to [0…255] and Cb/Cr are
-scaled to [-128…128] and then clipped to [-128…127].
-
-.. note::
-
- The JPEG standard does not actually store colorspace
- information. So if something other than sRGB is used, then the driver
- will have to set that information explicitly. Effectively
- ``V4L2_COLORSPACE_JPEG`` can be considered to be an abbreviation for
- ``V4L2_COLORSPACE_SRGB``, ``V4L2_YCBCR_ENC_601`` and
- ``V4L2_QUANTIZATION_FULL_RANGE``.
diff --git a/Documentation/media/uapi/v4l/pixfmt-008.rst b/Documentation/media/uapi/v4l/pixfmt-008.rst
deleted file mode 100644
index 4bec79784bdd..000000000000
--- a/Documentation/media/uapi/v4l/pixfmt-008.rst
+++ /dev/null
@@ -1,32 +0,0 @@
-.. -*- coding: utf-8; mode: rst -*-
-
-***************************************
-Detailed Transfer Function Descriptions
-***************************************
-
-
-.. _xf-smpte-2084:
-
-Transfer Function SMPTE 2084 (V4L2_XFER_FUNC_SMPTE2084)
-=======================================================
-
-The :ref:`smpte2084` standard defines the transfer function used by
-High Dynamic Range content.
-
-Constants:
- m1 = (2610 / 4096) / 4
-
- m2 = (2523 / 4096) * 128
-
- c1 = 3424 / 4096
-
- c2 = (2413 / 4096) * 32
-
- c3 = (2392 / 4096) * 32
-
-Transfer function:
- L' = ((c1 + c2 * L\ :sup:`m1`) / (1 + c3 * L\ :sup:`m1`))\ :sup:`m2`
-
-Inverse Transfer function:
- L = (max(L':sup:`1/m2` - c1, 0) / (c2 - c3 *
- L'\ :sup:`1/m2`))\ :sup:`1/m1`
diff --git a/Documentation/media/uapi/v4l/pixfmt-013.rst b/Documentation/media/uapi/v4l/pixfmt-compressed.rst
index 728d7ede10fa..728d7ede10fa 100644
--- a/Documentation/media/uapi/v4l/pixfmt-013.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-compressed.rst
diff --git a/Documentation/media/uapi/v4l/pixfmt-004.rst b/Documentation/media/uapi/v4l/pixfmt-intro.rst
index 4bc116aa8193..4bc116aa8193 100644
--- a/Documentation/media/uapi/v4l/pixfmt-004.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-intro.rst
diff --git a/Documentation/media/uapi/v4l/pixfmt-inzi.rst b/Documentation/media/uapi/v4l/pixfmt-inzi.rst
index 9849e799f205..75272f80bc8a 100644
--- a/Documentation/media/uapi/v4l/pixfmt-inzi.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-inzi.rst
@@ -34,11 +34,12 @@ The second plane provides 16-bit per-pixel Depth data arranged in
Each cell is a 16-bit word with more significant data stored at higher
memory address (byte order is little-endian).
+
.. raw:: latex
- \newline\newline\begin{adjustbox}{width=\columnwidth}
+ \small
-.. tabularcolumns:: |p{4.0cm}|p{4.0cm}|p{4.0cm}|p{4.0cm}|p{4.0cm}|p{4.0cm}|
+.. tabularcolumns:: |p{2.5cm}|p{2.5cm}|p{2.5cm}|p{2.5cm}|p{2.5cm}|p{2.5cm}|
.. flat-table::
:header-rows: 0
@@ -78,4 +79,4 @@ memory address (byte order is little-endian).
.. raw:: latex
- \end{adjustbox}\newline\newline
+ \normalsize
diff --git a/Documentation/media/uapi/v4l/pixfmt-m420.rst b/Documentation/media/uapi/v4l/pixfmt-m420.rst
index 7dd47c071e2f..6703f4079c3e 100644
--- a/Documentation/media/uapi/v4l/pixfmt-m420.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-m420.rst
@@ -66,7 +66,7 @@ Each cell is one byte.
- Cr\ :sub:`11`
-**Color Sample Location..**
+**Color Sample Location:**
diff --git a/Documentation/media/uapi/v4l/pixfmt-nv12.rst b/Documentation/media/uapi/v4l/pixfmt-nv12.rst
index 5b45a6d2ac95..2776b41377d5 100644
--- a/Documentation/media/uapi/v4l/pixfmt-nv12.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-nv12.rst
@@ -71,7 +71,7 @@ Each cell is one byte.
- Cr\ :sub:`11`
-**Color Sample Location..**
+**Color Sample Location:**
.. flat-table::
:header-rows: 0
diff --git a/Documentation/media/uapi/v4l/pixfmt-nv12m.rst b/Documentation/media/uapi/v4l/pixfmt-nv12m.rst
index de3051fd6b50..c1a2779f604c 100644
--- a/Documentation/media/uapi/v4l/pixfmt-nv12m.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-nv12m.rst
@@ -83,7 +83,7 @@ Each cell is one byte.
- Cr\ :sub:`11`
-**Color Sample Location..**
+**Color Sample Location:**
diff --git a/Documentation/media/uapi/v4l/pixfmt-nv16.rst b/Documentation/media/uapi/v4l/pixfmt-nv16.rst
index 8ceba79ff636..f0fdad3006cf 100644
--- a/Documentation/media/uapi/v4l/pixfmt-nv16.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-nv16.rst
@@ -79,7 +79,7 @@ Each cell is one byte.
- Cr\ :sub:`31`
-**Color Sample Location..**
+**Color Sample Location:**
diff --git a/Documentation/media/uapi/v4l/pixfmt-nv16m.rst b/Documentation/media/uapi/v4l/pixfmt-nv16m.rst
index 4d46ab39f9f1..c45f036763e7 100644
--- a/Documentation/media/uapi/v4l/pixfmt-nv16m.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-nv16m.rst
@@ -83,7 +83,7 @@ Each cell is one byte.
- Cr\ :sub:`32`
-**Color Sample Location..**
+**Color Sample Location:**
diff --git a/Documentation/media/uapi/v4l/pixfmt-packed-hsv.rst b/Documentation/media/uapi/v4l/pixfmt-packed-hsv.rst
index 3fdb34ce2f09..8edf65c80660 100644
--- a/Documentation/media/uapi/v4l/pixfmt-packed-hsv.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-packed-hsv.rst
@@ -17,11 +17,14 @@ cylinder: 0 being the smallest value and 255 the maximum.
The values are packed in 24 or 32 bit formats.
+
.. raw:: latex
- \newline\begin{adjustbox}{width=\columnwidth}
+ \begingroup
+ \tiny
+ \setlength{\tabcolsep}{2pt}
-.. tabularcolumns:: |p{4.2cm}|p{1.0cm}|p{0.7cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.2cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.2cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.2cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{1.7cm}|
+.. tabularcolumns:: |p{2.0cm}|p{0.54cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|
.. _packed-hsv-formats:
@@ -33,11 +36,8 @@ The values are packed in 24 or 32 bit formats.
- Code
-
- :cspan:`7` Byte 0 in memory
- -
- :cspan:`7` Byte 1
- -
- :cspan:`7` Byte 2
- -
- :cspan:`7` Byte 3
* -
-
@@ -50,7 +50,7 @@ The values are packed in 24 or 32 bit formats.
- 2
- 1
- 0
- -
+
- 7
- 6
- 5
@@ -59,7 +59,7 @@ The values are packed in 24 or 32 bit formats.
- 2
- 1
- 0
- -
+
- 7
- 6
- 5
@@ -68,7 +68,7 @@ The values are packed in 24 or 32 bit formats.
- 2
- 1
- 0
- -
+
- 7
- 6
- 5
@@ -90,7 +90,7 @@ The values are packed in 24 or 32 bit formats.
-
-
-
- -
+
- h\ :sub:`7`
- h\ :sub:`6`
- h\ :sub:`5`
@@ -99,7 +99,7 @@ The values are packed in 24 or 32 bit formats.
- h\ :sub:`2`
- h\ :sub:`1`
- h\ :sub:`0`
- -
+
- s\ :sub:`7`
- s\ :sub:`6`
- s\ :sub:`5`
@@ -108,7 +108,7 @@ The values are packed in 24 or 32 bit formats.
- s\ :sub:`2`
- s\ :sub:`1`
- s\ :sub:`0`
- -
+
- v\ :sub:`7`
- v\ :sub:`6`
- v\ :sub:`5`
@@ -130,7 +130,7 @@ The values are packed in 24 or 32 bit formats.
- h\ :sub:`2`
- h\ :sub:`1`
- h\ :sub:`0`
- -
+
- s\ :sub:`7`
- s\ :sub:`6`
- s\ :sub:`5`
@@ -139,7 +139,7 @@ The values are packed in 24 or 32 bit formats.
- s\ :sub:`2`
- s\ :sub:`1`
- s\ :sub:`0`
- -
+
- v\ :sub:`7`
- v\ :sub:`6`
- v\ :sub:`5`
@@ -149,9 +149,9 @@ The values are packed in 24 or 32 bit formats.
- v\ :sub:`1`
- v\ :sub:`0`
-
- -
+
.. raw:: latex
- \end{adjustbox}\newline\newline
+ \endgroup
Bit 7 is the most significant bit.
diff --git a/Documentation/media/uapi/v4l/pixfmt-packed-rgb.rst b/Documentation/media/uapi/v4l/pixfmt-packed-rgb.rst
index 84fcbcb74171..4938d9655a41 100644
--- a/Documentation/media/uapi/v4l/pixfmt-packed-rgb.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-packed-rgb.rst
@@ -16,9 +16,12 @@ next to each other in memory.
.. raw:: latex
- \begin{adjustbox}{width=\columnwidth}
+ \begingroup
+ \tiny
+ \setlength{\tabcolsep}{2pt}
+
+.. tabularcolumns:: |p{2.3cm}|p{1.6cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|
-.. tabularcolumns:: |p{4.5cm}|p{3.3cm}|p{0.7cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.2cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.2cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.2cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{1.7cm}|
.. _rgb-formats:
@@ -28,17 +31,12 @@ next to each other in memory.
* - Identifier
- Code
- -
- :cspan:`7` Byte 0 in memory
- -
- :cspan:`7` Byte 1
- -
- :cspan:`7` Byte 2
- -
- :cspan:`7` Byte 3
* -
-
- - Bit
- 7
- 6
- 5
@@ -47,7 +45,7 @@ next to each other in memory.
- 2
- 1
- 0
- -
+
- 7
- 6
- 5
@@ -56,7 +54,7 @@ next to each other in memory.
- 2
- 1
- 0
- -
+
- 7
- 6
- 5
@@ -65,7 +63,7 @@ next to each other in memory.
- 2
- 1
- 0
- -
+
- 7
- 6
- 5
@@ -78,7 +76,7 @@ next to each other in memory.
- ``V4L2_PIX_FMT_RGB332``
- 'RGB1'
- -
+
- r\ :sub:`2`
- r\ :sub:`1`
- r\ :sub:`0`
@@ -87,11 +85,12 @@ next to each other in memory.
- g\ :sub:`0`
- b\ :sub:`1`
- b\ :sub:`0`
+ -
* .. _V4L2-PIX-FMT-ARGB444:
- ``V4L2_PIX_FMT_ARGB444``
- 'AR12'
- -
+
- g\ :sub:`3`
- g\ :sub:`2`
- g\ :sub:`1`
@@ -100,7 +99,7 @@ next to each other in memory.
- b\ :sub:`2`
- b\ :sub:`1`
- b\ :sub:`0`
- -
+
- a\ :sub:`3`
- a\ :sub:`2`
- a\ :sub:`1`
@@ -109,11 +108,12 @@ next to each other in memory.
- r\ :sub:`2`
- r\ :sub:`1`
- r\ :sub:`0`
+ -
* .. _V4L2-PIX-FMT-XRGB444:
- ``V4L2_PIX_FMT_XRGB444``
- 'XR12'
- -
+
- g\ :sub:`3`
- g\ :sub:`2`
- g\ :sub:`1`
@@ -122,7 +122,7 @@ next to each other in memory.
- b\ :sub:`2`
- b\ :sub:`1`
- b\ :sub:`0`
- -
+
-
-
-
@@ -131,11 +131,12 @@ next to each other in memory.
- r\ :sub:`2`
- r\ :sub:`1`
- r\ :sub:`0`
+ -
* .. _V4L2-PIX-FMT-ARGB555:
- ``V4L2_PIX_FMT_ARGB555``
- 'AR15'
- -
+
- g\ :sub:`2`
- g\ :sub:`1`
- g\ :sub:`0`
@@ -144,7 +145,7 @@ next to each other in memory.
- b\ :sub:`2`
- b\ :sub:`1`
- b\ :sub:`0`
- -
+
- a
- r\ :sub:`4`
- r\ :sub:`3`
@@ -153,11 +154,12 @@ next to each other in memory.
- r\ :sub:`0`
- g\ :sub:`4`
- g\ :sub:`3`
+ -
* .. _V4L2-PIX-FMT-XRGB555:
- ``V4L2_PIX_FMT_XRGB555``
- 'XR15'
- -
+
- g\ :sub:`2`
- g\ :sub:`1`
- g\ :sub:`0`
@@ -166,7 +168,7 @@ next to each other in memory.
- b\ :sub:`2`
- b\ :sub:`1`
- b\ :sub:`0`
- -
+
-
- r\ :sub:`4`
- r\ :sub:`3`
@@ -175,11 +177,12 @@ next to each other in memory.
- r\ :sub:`0`
- g\ :sub:`4`
- g\ :sub:`3`
+ -
* .. _V4L2-PIX-FMT-RGB565:
- ``V4L2_PIX_FMT_RGB565``
- 'RGBP'
- -
+
- g\ :sub:`2`
- g\ :sub:`1`
- g\ :sub:`0`
@@ -188,7 +191,7 @@ next to each other in memory.
- b\ :sub:`2`
- b\ :sub:`1`
- b\ :sub:`0`
- -
+
- r\ :sub:`4`
- r\ :sub:`3`
- r\ :sub:`2`
@@ -197,11 +200,12 @@ next to each other in memory.
- g\ :sub:`5`
- g\ :sub:`4`
- g\ :sub:`3`
+ -
* .. _V4L2-PIX-FMT-ARGB555X:
- ``V4L2_PIX_FMT_ARGB555X``
- 'AR15' | (1 << 31)
- -
+
- a
- r\ :sub:`4`
- r\ :sub:`3`
@@ -210,7 +214,7 @@ next to each other in memory.
- r\ :sub:`0`
- g\ :sub:`4`
- g\ :sub:`3`
- -
+
- g\ :sub:`2`
- g\ :sub:`1`
- g\ :sub:`0`
@@ -219,11 +223,12 @@ next to each other in memory.
- b\ :sub:`2`
- b\ :sub:`1`
- b\ :sub:`0`
+ -
* .. _V4L2-PIX-FMT-XRGB555X:
- ``V4L2_PIX_FMT_XRGB555X``
- 'XR15' | (1 << 31)
- -
+
-
- r\ :sub:`4`
- r\ :sub:`3`
@@ -232,7 +237,7 @@ next to each other in memory.
- r\ :sub:`0`
- g\ :sub:`4`
- g\ :sub:`3`
- -
+
- g\ :sub:`2`
- g\ :sub:`1`
- g\ :sub:`0`
@@ -241,11 +246,12 @@ next to each other in memory.
- b\ :sub:`2`
- b\ :sub:`1`
- b\ :sub:`0`
+ -
* .. _V4L2-PIX-FMT-RGB565X:
- ``V4L2_PIX_FMT_RGB565X``
- 'RGBR'
- -
+
- r\ :sub:`4`
- r\ :sub:`3`
- r\ :sub:`2`
@@ -254,7 +260,7 @@ next to each other in memory.
- g\ :sub:`5`
- g\ :sub:`4`
- g\ :sub:`3`
- -
+
- g\ :sub:`2`
- g\ :sub:`1`
- g\ :sub:`0`
@@ -263,11 +269,12 @@ next to each other in memory.
- b\ :sub:`2`
- b\ :sub:`1`
- b\ :sub:`0`
+ -
* .. _V4L2-PIX-FMT-BGR24:
- ``V4L2_PIX_FMT_BGR24``
- 'BGR3'
- -
+
- b\ :sub:`7`
- b\ :sub:`6`
- b\ :sub:`5`
@@ -276,7 +283,7 @@ next to each other in memory.
- b\ :sub:`2`
- b\ :sub:`1`
- b\ :sub:`0`
- -
+
- g\ :sub:`7`
- g\ :sub:`6`
- g\ :sub:`5`
@@ -285,7 +292,7 @@ next to each other in memory.
- g\ :sub:`2`
- g\ :sub:`1`
- g\ :sub:`0`
- -
+
- r\ :sub:`7`
- r\ :sub:`6`
- r\ :sub:`5`
@@ -294,11 +301,12 @@ next to each other in memory.
- r\ :sub:`2`
- r\ :sub:`1`
- r\ :sub:`0`
+ -
* .. _V4L2-PIX-FMT-RGB24:
- ``V4L2_PIX_FMT_RGB24``
- 'RGB3'
- -
+
- r\ :sub:`7`
- r\ :sub:`6`
- r\ :sub:`5`
@@ -307,7 +315,7 @@ next to each other in memory.
- r\ :sub:`2`
- r\ :sub:`1`
- r\ :sub:`0`
- -
+
- g\ :sub:`7`
- g\ :sub:`6`
- g\ :sub:`5`
@@ -316,7 +324,7 @@ next to each other in memory.
- g\ :sub:`2`
- g\ :sub:`1`
- g\ :sub:`0`
- -
+
- b\ :sub:`7`
- b\ :sub:`6`
- b\ :sub:`5`
@@ -325,11 +333,12 @@ next to each other in memory.
- b\ :sub:`2`
- b\ :sub:`1`
- b\ :sub:`0`
+ -
* .. _V4L2-PIX-FMT-BGR666:
- ``V4L2_PIX_FMT_BGR666``
- 'BGRH'
- -
+
- b\ :sub:`5`
- b\ :sub:`4`
- b\ :sub:`3`
@@ -338,7 +347,7 @@ next to each other in memory.
- b\ :sub:`0`
- g\ :sub:`5`
- g\ :sub:`4`
- -
+
- g\ :sub:`3`
- g\ :sub:`2`
- g\ :sub:`1`
@@ -347,7 +356,7 @@ next to each other in memory.
- r\ :sub:`4`
- r\ :sub:`3`
- r\ :sub:`2`
- -
+
- r\ :sub:`1`
- r\ :sub:`0`
-
@@ -356,7 +365,7 @@ next to each other in memory.
-
-
-
- -
+
-
-
-
@@ -369,7 +378,7 @@ next to each other in memory.
- ``V4L2_PIX_FMT_ABGR32``
- 'AR24'
- -
+
- b\ :sub:`7`
- b\ :sub:`6`
- b\ :sub:`5`
@@ -378,7 +387,7 @@ next to each other in memory.
- b\ :sub:`2`
- b\ :sub:`1`
- b\ :sub:`0`
- -
+
- g\ :sub:`7`
- g\ :sub:`6`
- g\ :sub:`5`
@@ -387,7 +396,7 @@ next to each other in memory.
- g\ :sub:`2`
- g\ :sub:`1`
- g\ :sub:`0`
- -
+
- r\ :sub:`7`
- r\ :sub:`6`
- r\ :sub:`5`
@@ -396,7 +405,7 @@ next to each other in memory.
- r\ :sub:`2`
- r\ :sub:`1`
- r\ :sub:`0`
- -
+
- a\ :sub:`7`
- a\ :sub:`6`
- a\ :sub:`5`
@@ -409,7 +418,7 @@ next to each other in memory.
- ``V4L2_PIX_FMT_XBGR32``
- 'XR24'
- -
+
- b\ :sub:`7`
- b\ :sub:`6`
- b\ :sub:`5`
@@ -418,7 +427,7 @@ next to each other in memory.
- b\ :sub:`2`
- b\ :sub:`1`
- b\ :sub:`0`
- -
+
- g\ :sub:`7`
- g\ :sub:`6`
- g\ :sub:`5`
@@ -427,7 +436,7 @@ next to each other in memory.
- g\ :sub:`2`
- g\ :sub:`1`
- g\ :sub:`0`
- -
+
- r\ :sub:`7`
- r\ :sub:`6`
- r\ :sub:`5`
@@ -436,7 +445,7 @@ next to each other in memory.
- r\ :sub:`2`
- r\ :sub:`1`
- r\ :sub:`0`
- -
+
-
-
-
@@ -449,7 +458,7 @@ next to each other in memory.
- ``V4L2_PIX_FMT_ARGB32``
- 'BA24'
- -
+
- a\ :sub:`7`
- a\ :sub:`6`
- a\ :sub:`5`
@@ -458,7 +467,7 @@ next to each other in memory.
- a\ :sub:`2`
- a\ :sub:`1`
- a\ :sub:`0`
- -
+
- r\ :sub:`7`
- r\ :sub:`6`
- r\ :sub:`5`
@@ -467,7 +476,7 @@ next to each other in memory.
- r\ :sub:`2`
- r\ :sub:`1`
- r\ :sub:`0`
- -
+
- g\ :sub:`7`
- g\ :sub:`6`
- g\ :sub:`5`
@@ -476,7 +485,7 @@ next to each other in memory.
- g\ :sub:`2`
- g\ :sub:`1`
- g\ :sub:`0`
- -
+
- b\ :sub:`7`
- b\ :sub:`6`
- b\ :sub:`5`
@@ -489,6 +498,7 @@ next to each other in memory.
- ``V4L2_PIX_FMT_XRGB32``
- 'BX24'
+
-
-
-
@@ -497,8 +507,7 @@ next to each other in memory.
-
-
-
- -
- -
+
- r\ :sub:`7`
- r\ :sub:`6`
- r\ :sub:`5`
@@ -507,7 +516,7 @@ next to each other in memory.
- r\ :sub:`2`
- r\ :sub:`1`
- r\ :sub:`0`
- -
+
- g\ :sub:`7`
- g\ :sub:`6`
- g\ :sub:`5`
@@ -516,7 +525,7 @@ next to each other in memory.
- g\ :sub:`2`
- g\ :sub:`1`
- g\ :sub:`0`
- -
+
- b\ :sub:`7`
- b\ :sub:`6`
- b\ :sub:`5`
@@ -528,7 +537,7 @@ next to each other in memory.
.. raw:: latex
- \end{adjustbox}\newline\newline
+ \endgroup
.. note:: Bit 7 is the most significant bit.
@@ -562,9 +571,9 @@ Each cell is one byte.
.. raw:: latex
- \newline\newline\begin{adjustbox}{width=\columnwidth}
+ \small
-.. tabularcolumns:: |p{4.1cm}|p{1.1cm}|p{1.1cm}|p{1.1cm}|p{1.1cm}|p{1.1cm}|p{1.1cm}|p{1.1cm}|p{1.1cm}|p{1.1cm}|p{1.1cm}|p{1.1cm}|p{1.3cm}|
+.. tabularcolumns:: |p{3.1cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|
.. flat-table:: RGB byte order
:header-rows: 0
@@ -626,19 +635,21 @@ Each cell is one byte.
.. raw:: latex
- \end{adjustbox}\newline\newline
+ \normalsize
Formats defined in :ref:`rgb-formats-deprecated` are deprecated and
must not be used by new drivers. They are documented here for reference.
-The meaning of their alpha bits (a) is ill-defined and interpreted as in
+The meaning of their alpha bits ``(a)`` are ill-defined and interpreted as in
either the corresponding ARGB or XRGB format, depending on the driver.
.. raw:: latex
- \begin{adjustbox}{width=\columnwidth}
+ \begingroup
+ \tiny
+ \setlength{\tabcolsep}{2pt}
-.. tabularcolumns:: |p{4.2cm}|p{1.0cm}|p{0.7cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.2cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.2cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.2cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{1.7cm}|
+.. tabularcolumns:: |p{2.2cm}|p{0.60cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|
.. _rgb-formats-deprecated:
@@ -648,17 +659,15 @@ either the corresponding ARGB or XRGB format, depending on the driver.
* - Identifier
- Code
- -
- :cspan:`7` Byte 0 in memory
- -
+
- :cspan:`7` Byte 1
- -
+
- :cspan:`7` Byte 2
- -
+
- :cspan:`7` Byte 3
* -
-
- - Bit
- 7
- 6
- 5
@@ -667,7 +676,7 @@ either the corresponding ARGB or XRGB format, depending on the driver.
- 2
- 1
- 0
- -
+
- 7
- 6
- 5
@@ -676,7 +685,7 @@ either the corresponding ARGB or XRGB format, depending on the driver.
- 2
- 1
- 0
- -
+
- 7
- 6
- 5
@@ -685,7 +694,7 @@ either the corresponding ARGB or XRGB format, depending on the driver.
- 2
- 1
- 0
- -
+
- 7
- 6
- 5
@@ -698,7 +707,7 @@ either the corresponding ARGB or XRGB format, depending on the driver.
- ``V4L2_PIX_FMT_RGB444``
- 'R444'
- -
+
- g\ :sub:`3`
- g\ :sub:`2`
- g\ :sub:`1`
@@ -707,7 +716,7 @@ either the corresponding ARGB or XRGB format, depending on the driver.
- b\ :sub:`2`
- b\ :sub:`1`
- b\ :sub:`0`
- -
+
- a\ :sub:`3`
- a\ :sub:`2`
- a\ :sub:`1`
@@ -716,11 +725,12 @@ either the corresponding ARGB or XRGB format, depending on the driver.
- r\ :sub:`2`
- r\ :sub:`1`
- r\ :sub:`0`
+ -
* .. _V4L2-PIX-FMT-RGB555:
- ``V4L2_PIX_FMT_RGB555``
- 'RGBO'
- -
+
- g\ :sub:`2`
- g\ :sub:`1`
- g\ :sub:`0`
@@ -729,7 +739,7 @@ either the corresponding ARGB or XRGB format, depending on the driver.
- b\ :sub:`2`
- b\ :sub:`1`
- b\ :sub:`0`
- -
+
- a
- r\ :sub:`4`
- r\ :sub:`3`
@@ -738,11 +748,12 @@ either the corresponding ARGB or XRGB format, depending on the driver.
- r\ :sub:`0`
- g\ :sub:`4`
- g\ :sub:`3`
+ -
* .. _V4L2-PIX-FMT-RGB555X:
- ``V4L2_PIX_FMT_RGB555X``
- 'RGBQ'
- -
+
- a
- r\ :sub:`4`
- r\ :sub:`3`
@@ -751,7 +762,7 @@ either the corresponding ARGB or XRGB format, depending on the driver.
- r\ :sub:`0`
- g\ :sub:`4`
- g\ :sub:`3`
- -
+
- g\ :sub:`2`
- g\ :sub:`1`
- g\ :sub:`0`
@@ -760,11 +771,12 @@ either the corresponding ARGB or XRGB format, depending on the driver.
- b\ :sub:`2`
- b\ :sub:`1`
- b\ :sub:`0`
+ -
* .. _V4L2-PIX-FMT-BGR32:
- ``V4L2_PIX_FMT_BGR32``
- 'BGR4'
- -
+
- b\ :sub:`7`
- b\ :sub:`6`
- b\ :sub:`5`
@@ -773,7 +785,7 @@ either the corresponding ARGB or XRGB format, depending on the driver.
- b\ :sub:`2`
- b\ :sub:`1`
- b\ :sub:`0`
- -
+
- g\ :sub:`7`
- g\ :sub:`6`
- g\ :sub:`5`
@@ -782,7 +794,7 @@ either the corresponding ARGB or XRGB format, depending on the driver.
- g\ :sub:`2`
- g\ :sub:`1`
- g\ :sub:`0`
- -
+
- r\ :sub:`7`
- r\ :sub:`6`
- r\ :sub:`5`
@@ -791,7 +803,7 @@ either the corresponding ARGB or XRGB format, depending on the driver.
- r\ :sub:`2`
- r\ :sub:`1`
- r\ :sub:`0`
- -
+
- a\ :sub:`7`
- a\ :sub:`6`
- a\ :sub:`5`
@@ -804,7 +816,7 @@ either the corresponding ARGB or XRGB format, depending on the driver.
- ``V4L2_PIX_FMT_RGB32``
- 'RGB4'
- -
+
- a\ :sub:`7`
- a\ :sub:`6`
- a\ :sub:`5`
@@ -813,7 +825,7 @@ either the corresponding ARGB or XRGB format, depending on the driver.
- a\ :sub:`2`
- a\ :sub:`1`
- a\ :sub:`0`
- -
+
- r\ :sub:`7`
- r\ :sub:`6`
- r\ :sub:`5`
@@ -822,7 +834,7 @@ either the corresponding ARGB or XRGB format, depending on the driver.
- r\ :sub:`2`
- r\ :sub:`1`
- r\ :sub:`0`
- -
+
- g\ :sub:`7`
- g\ :sub:`6`
- g\ :sub:`5`
@@ -831,7 +843,7 @@ either the corresponding ARGB or XRGB format, depending on the driver.
- g\ :sub:`2`
- g\ :sub:`1`
- g\ :sub:`0`
- -
+
- b\ :sub:`7`
- b\ :sub:`6`
- b\ :sub:`5`
@@ -843,7 +855,7 @@ either the corresponding ARGB or XRGB format, depending on the driver.
.. raw:: latex
- \end{adjustbox}\newline\newline
+ \endgroup
A test utility to determine which RGB formats a driver actually supports
is available from the LinuxTV v4l-dvb repository. See
diff --git a/Documentation/media/uapi/v4l/pixfmt-packed-yuv.rst b/Documentation/media/uapi/v4l/pixfmt-packed-yuv.rst
index ebc8fcc937ad..d7644b411ccc 100644
--- a/Documentation/media/uapi/v4l/pixfmt-packed-yuv.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-packed-yuv.rst
@@ -12,13 +12,16 @@ Description
Similar to the packed RGB formats these formats store the Y, Cb and Cr
component of each pixel in one 16 or 32 bit word.
+
.. raw:: latex
- \newline\newline\begin{adjustbox}{width=\columnwidth}
+ \begingroup
+ \tiny
+ \setlength{\tabcolsep}{2pt}
.. _packed-yuv-formats:
-.. tabularcolumns:: |p{4.5cm}|p{3.3cm}|p{0.7cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.2cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.2cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.2cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{1.7cm}|
+.. tabularcolumns:: |p{2.0cm}|p{0.67cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|p{0.29cm}|
.. flat-table:: Packed YUV Image Formats
:header-rows: 2
@@ -26,17 +29,16 @@ component of each pixel in one 16 or 32 bit word.
* - Identifier
- Code
- -
+
- :cspan:`7` Byte 0 in memory
- -
+
- :cspan:`7` Byte 1
- -
+
- :cspan:`7` Byte 2
- -
+
- :cspan:`7` Byte 3
* -
-
- - Bit
- 7
- 6
- 5
@@ -45,7 +47,7 @@ component of each pixel in one 16 or 32 bit word.
- 2
- 1
- 0
- -
+
- 7
- 6
- 5
@@ -54,7 +56,7 @@ component of each pixel in one 16 or 32 bit word.
- 2
- 1
- 0
- -
+
- 7
- 6
- 5
@@ -63,7 +65,7 @@ component of each pixel in one 16 or 32 bit word.
- 2
- 1
- 0
- -
+
- 7
- 6
- 5
@@ -76,7 +78,7 @@ component of each pixel in one 16 or 32 bit word.
- ``V4L2_PIX_FMT_YUV444``
- 'Y444'
- -
+
- Cb\ :sub:`3`
- Cb\ :sub:`2`
- Cb\ :sub:`1`
@@ -85,7 +87,7 @@ component of each pixel in one 16 or 32 bit word.
- Cr\ :sub:`2`
- Cr\ :sub:`1`
- Cr\ :sub:`0`
- -
+
- a\ :sub:`3`
- a\ :sub:`2`
- a\ :sub:`1`
@@ -94,11 +96,12 @@ component of each pixel in one 16 or 32 bit word.
- Y'\ :sub:`2`
- Y'\ :sub:`1`
- Y'\ :sub:`0`
+ -
* .. _V4L2-PIX-FMT-YUV555:
- ``V4L2_PIX_FMT_YUV555``
- 'YUVO'
- -
+
- Cb\ :sub:`2`
- Cb\ :sub:`1`
- Cb\ :sub:`0`
@@ -107,7 +110,7 @@ component of each pixel in one 16 or 32 bit word.
- Cr\ :sub:`2`
- Cr\ :sub:`1`
- Cr\ :sub:`0`
- -
+
- a
- Y'\ :sub:`4`
- Y'\ :sub:`3`
@@ -116,11 +119,12 @@ component of each pixel in one 16 or 32 bit word.
- Y'\ :sub:`0`
- Cb\ :sub:`4`
- Cb\ :sub:`3`
+ -
* .. _V4L2-PIX-FMT-YUV565:
- ``V4L2_PIX_FMT_YUV565``
- 'YUVP'
- -
+
- Cb\ :sub:`2`
- Cb\ :sub:`1`
- Cb\ :sub:`0`
@@ -129,7 +133,7 @@ component of each pixel in one 16 or 32 bit word.
- Cr\ :sub:`2`
- Cr\ :sub:`1`
- Cr\ :sub:`0`
- -
+
- Y'\ :sub:`4`
- Y'\ :sub:`3`
- Y'\ :sub:`2`
@@ -138,11 +142,12 @@ component of each pixel in one 16 or 32 bit word.
- Cb\ :sub:`5`
- Cb\ :sub:`4`
- Cb\ :sub:`3`
+ -
* .. _V4L2-PIX-FMT-YUV32:
- ``V4L2_PIX_FMT_YUV32``
- 'YUV4'
- -
+
- a\ :sub:`7`
- a\ :sub:`6`
- a\ :sub:`5`
@@ -151,7 +156,7 @@ component of each pixel in one 16 or 32 bit word.
- a\ :sub:`2`
- a\ :sub:`1`
- a\ :sub:`0`
- -
+
- Y'\ :sub:`7`
- Y'\ :sub:`6`
- Y'\ :sub:`5`
@@ -160,7 +165,7 @@ component of each pixel in one 16 or 32 bit word.
- Y'\ :sub:`2`
- Y'\ :sub:`1`
- Y'\ :sub:`0`
- -
+
- Cb\ :sub:`7`
- Cb\ :sub:`6`
- Cb\ :sub:`5`
@@ -169,7 +174,7 @@ component of each pixel in one 16 or 32 bit word.
- Cb\ :sub:`2`
- Cb\ :sub:`1`
- Cb\ :sub:`0`
- -
+
- Cr\ :sub:`7`
- Cr\ :sub:`6`
- Cr\ :sub:`5`
@@ -181,7 +186,7 @@ component of each pixel in one 16 or 32 bit word.
.. raw:: latex
- \end{adjustbox}\newline\newline
+ \endgroup
.. note::
diff --git a/Documentation/media/uapi/v4l/pixfmt-rgb.rst b/Documentation/media/uapi/v4l/pixfmt-rgb.rst
index b0f35136021e..4cc27195dc79 100644
--- a/Documentation/media/uapi/v4l/pixfmt-rgb.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-rgb.rst
@@ -17,4 +17,5 @@ RGB Formats
pixfmt-srggb10alaw8
pixfmt-srggb10dpcm8
pixfmt-srggb12
+ pixfmt-srggb12p
pixfmt-srggb16
diff --git a/Documentation/media/uapi/v4l/pixfmt-sdr-pcu16be.rst b/Documentation/media/uapi/v4l/pixfmt-sdr-pcu16be.rst
new file mode 100644
index 000000000000..2de1b1a0f517
--- /dev/null
+++ b/Documentation/media/uapi/v4l/pixfmt-sdr-pcu16be.rst
@@ -0,0 +1,55 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _V4L2-SDR-FMT-PCU16BE:
+
+******************************
+V4L2_SDR_FMT_PCU16BE ('PC16')
+******************************
+
+Planar complex unsigned 16-bit big endian IQ sample
+
+Description
+===========
+
+This format contains a sequence of complex number samples. Each complex
+number consist of two parts called In-phase and Quadrature (IQ). Both I
+and Q are represented as a 16 bit unsigned big endian number stored in
+32 bit space. The remaining unused bits within the 32 bit space will be
+padded with 0. I value starts first and Q value starts at an offset
+equalling half of the buffer size (i.e.) offset = buffersize/2. Out of
+the 16 bits, bit 15:2 (14 bit) is data and bit 1:0 (2 bit) can be any
+value.
+
+**Byte Order.**
+Each cell is one byte.
+
+.. flat-table::
+ :header-rows: 1
+ :stub-columns: 0
+
+ * - Offset:
+ - Byte B0
+ - Byte B1
+ - Byte B2
+ - Byte B3
+ * - start + 0:
+ - I'\ :sub:`0[13:6]`
+ - I'\ :sub:`0[5:0]; B1[1:0]=pad`
+ - pad
+ - pad
+ * - start + 4:
+ - I'\ :sub:`1[13:6]`
+ - I'\ :sub:`1[5:0]; B1[1:0]=pad`
+ - pad
+ - pad
+ * - ...
+ * - start + offset:
+ - Q'\ :sub:`0[13:6]`
+ - Q'\ :sub:`0[5:0]; B1[1:0]=pad`
+ - pad
+ - pad
+ * - start + offset + 4:
+ - Q'\ :sub:`1[13:6]`
+ - Q'\ :sub:`1[5:0]; B1[1:0]=pad`
+ - pad
+ - pad
diff --git a/Documentation/media/uapi/v4l/pixfmt-sdr-pcu18be.rst b/Documentation/media/uapi/v4l/pixfmt-sdr-pcu18be.rst
new file mode 100644
index 000000000000..da8b26bf6b95
--- /dev/null
+++ b/Documentation/media/uapi/v4l/pixfmt-sdr-pcu18be.rst
@@ -0,0 +1,55 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _V4L2-SDR-FMT-PCU18BE:
+
+******************************
+V4L2_SDR_FMT_PCU18BE ('PC18')
+******************************
+
+Planar complex unsigned 18-bit big endian IQ sample
+
+Description
+===========
+
+This format contains a sequence of complex number samples. Each complex
+number consist of two parts called In-phase and Quadrature (IQ). Both I
+and Q are represented as a 18 bit unsigned big endian number stored in
+32 bit space. The remaining unused bits within the 32 bit space will be
+padded with 0. I value starts first and Q value starts at an offset
+equalling half of the buffer size (i.e.) offset = buffersize/2. Out of
+the 18 bits, bit 17:2 (16 bit) is data and bit 1:0 (2 bit) can be any
+value.
+
+**Byte Order.**
+Each cell is one byte.
+
+.. flat-table::
+ :header-rows: 1
+ :stub-columns: 0
+
+ * - Offset:
+ - Byte B0
+ - Byte B1
+ - Byte B2
+ - Byte B3
+ * - start + 0:
+ - I'\ :sub:`0[17:10]`
+ - I'\ :sub:`0[9:2]`
+ - I'\ :sub:`0[1:0]; B2[5:0]=pad`
+ - pad
+ * - start + 4:
+ - I'\ :sub:`1[17:10]`
+ - I'\ :sub:`1[9:2]`
+ - I'\ :sub:`1[1:0]; B2[5:0]=pad`
+ - pad
+ * - ...
+ * - start + offset:
+ - Q'\ :sub:`0[17:10]`
+ - Q'\ :sub:`0[9:2]`
+ - Q'\ :sub:`0[1:0]; B2[5:0]=pad`
+ - pad
+ * - start + offset + 4:
+ - Q'\ :sub:`1[17:10]`
+ - Q'\ :sub:`1[9:2]`
+ - Q'\ :sub:`1[1:0]; B2[5:0]=pad`
+ - pad
diff --git a/Documentation/media/uapi/v4l/pixfmt-sdr-pcu20be.rst b/Documentation/media/uapi/v4l/pixfmt-sdr-pcu20be.rst
new file mode 100644
index 000000000000..5499eed39477
--- /dev/null
+++ b/Documentation/media/uapi/v4l/pixfmt-sdr-pcu20be.rst
@@ -0,0 +1,54 @@
+.. -*- coding: utf-8; mode: rst -*-
+.. _V4L2-SDR-FMT-PCU20BE:
+
+******************************
+V4L2_SDR_FMT_PCU20BE ('PC20')
+******************************
+
+Planar complex unsigned 20-bit big endian IQ sample
+
+Description
+===========
+
+This format contains a sequence of complex number samples. Each complex
+number consist of two parts called In-phase and Quadrature (IQ). Both I
+and Q are represented as a 20 bit unsigned big endian number stored in
+32 bit space. The remaining unused bits within the 32 bit space will be
+padded with 0. I value starts first and Q value starts at an offset
+equalling half of the buffer size (i.e.) offset = buffersize/2. Out of
+the 20 bits, bit 19:2 (18 bit) is data and bit 1:0 (2 bit) can be any
+value.
+
+**Byte Order.**
+Each cell is one byte.
+
+.. flat-table::
+ :header-rows: 1
+ :stub-columns: 0
+
+ * - Offset:
+ - Byte B0
+ - Byte B1
+ - Byte B2
+ - Byte B3
+ * - start + 0:
+ - I'\ :sub:`0[19:12]`
+ - I'\ :sub:`0[11:4]`
+ - I'\ :sub:`0[3:0]; B2[3:0]=pad`
+ - pad
+ * - start + 4:
+ - I'\ :sub:`1[19:12]`
+ - I'\ :sub:`1[11:4]`
+ - I'\ :sub:`1[3:0]; B2[3:0]=pad`
+ - pad
+ * - ...
+ * - start + offset:
+ - Q'\ :sub:`0[19:12]`
+ - Q'\ :sub:`0[11:4]`
+ - Q'\ :sub:`0[3:0]; B2[3:0]=pad`
+ - pad
+ * - start + offset + 4:
+ - Q'\ :sub:`1[19:12]`
+ - Q'\ :sub:`1[11:4]`
+ - Q'\ :sub:`1[3:0]; B2[3:0]=pad`
+ - pad
diff --git a/Documentation/media/uapi/v4l/pixfmt-srggb10p.rst b/Documentation/media/uapi/v4l/pixfmt-srggb10p.rst
index b6d426c70ccd..d9e07a4b8b31 100644
--- a/Documentation/media/uapi/v4l/pixfmt-srggb10p.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-srggb10p.rst
@@ -33,11 +33,7 @@ of a small V4L2_PIX_FMT_SBGGR10P image:
**Byte Order.**
Each cell is one byte.
-.. raw:: latex
-
- \newline\newline\begin{adjustbox}{width=\columnwidth}
-
-.. tabularcolumns:: |p{2.0cm}|p{1.3cm}|p{1.3cm}|p{1.3cm}|p{1.3cm}|p{10.9cm}|
+.. tabularcolumns:: |p{2.0cm}|p{1.0cm}|p{1.0cm}|p{1.0cm}|p{1.0cm}|p{5.4cm}|
.. flat-table::
:header-rows: 0
@@ -50,6 +46,7 @@ Each cell is one byte.
- B\ :sub:`02high`
- G\ :sub:`03high`
- G\ :sub:`03low`\ (bits 7--6) B\ :sub:`02low`\ (bits 5--4)
+
G\ :sub:`01low`\ (bits 3--2) B\ :sub:`00low`\ (bits 1--0)
* - start + 5:
- G\ :sub:`10high`
@@ -57,6 +54,7 @@ Each cell is one byte.
- G\ :sub:`12high`
- R\ :sub:`13high`
- R\ :sub:`13low`\ (bits 7--6) G\ :sub:`12low`\ (bits 5--4)
+
R\ :sub:`11low`\ (bits 3--2) G\ :sub:`10low`\ (bits 1--0)
* - start + 10:
- B\ :sub:`20high`
@@ -64,6 +62,7 @@ Each cell is one byte.
- B\ :sub:`22high`
- G\ :sub:`23high`
- G\ :sub:`23low`\ (bits 7--6) B\ :sub:`22low`\ (bits 5--4)
+
G\ :sub:`21low`\ (bits 3--2) B\ :sub:`20low`\ (bits 1--0)
* - start + 15:
- G\ :sub:`30high`
@@ -71,8 +70,5 @@ Each cell is one byte.
- G\ :sub:`32high`
- R\ :sub:`33high`
- R\ :sub:`33low`\ (bits 7--6) G\ :sub:`32low`\ (bits 5--4)
- R\ :sub:`31low`\ (bits 3--2) G\ :sub:`30low`\ (bits 1--0)
-.. raw:: latex
-
- \end{adjustbox}\newline\newline
+ R\ :sub:`31low`\ (bits 3--2) G\ :sub:`30low`\ (bits 1--0)
diff --git a/Documentation/media/uapi/v4l/pixfmt-srggb12p.rst b/Documentation/media/uapi/v4l/pixfmt-srggb12p.rst
new file mode 100644
index 000000000000..59918a7913fe
--- /dev/null
+++ b/Documentation/media/uapi/v4l/pixfmt-srggb12p.rst
@@ -0,0 +1,86 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _V4L2-PIX-FMT-SRGGB12P:
+.. _v4l2-pix-fmt-sbggr12p:
+.. _v4l2-pix-fmt-sgbrg12p:
+.. _v4l2-pix-fmt-sgrbg12p:
+
+*******************************************************************************************************************************
+V4L2_PIX_FMT_SRGGB12P ('pRAA'), V4L2_PIX_FMT_SGRBG12P ('pgAA'), V4L2_PIX_FMT_SGBRG12P ('pGAA'), V4L2_PIX_FMT_SBGGR12P ('pBAA'),
+*******************************************************************************************************************************
+
+
+12-bit packed Bayer formats
+
+
+Description
+===========
+
+These four pixel formats are packed raw sRGB / Bayer formats with 12
+bits per colour. Every two consecutive samples are packed into three
+bytes. Each of the first two bytes contain the 8 high order bits of
+the pixels, and the third byte contains the four least significants
+bits of each pixel, in the same order.
+
+Each n-pixel row contains n/2 green samples and n/2 blue or red
+samples, with alternating green-red and green-blue rows. They are
+conventionally described as GRGR... BGBG..., RGRG... GBGB..., etc.
+Below is an example of a small V4L2_PIX_FMT_SBGGR12P image:
+
+**Byte Order.**
+Each cell is one byte.
+
+.. tabularcolumns:: |p{2.0cm}|p{1.0cm}|p{1.0cm}|p{2.7cm}|p{1.0cm}|p{1.0cm}|p{2.7cm}|
+
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 2 1 1 1 1 1 1
+
+
+ - - start + 0:
+ - B\ :sub:`00high`
+ - G\ :sub:`01high`
+ - G\ :sub:`01low`\ (bits 7--4)
+
+ B\ :sub:`00low`\ (bits 3--0)
+ - B\ :sub:`02high`
+ - G\ :sub:`03high`
+ - G\ :sub:`03low`\ (bits 7--4)
+
+ B\ :sub:`02low`\ (bits 3--0)
+
+ - - start + 6:
+ - G\ :sub:`10high`
+ - R\ :sub:`11high`
+ - R\ :sub:`11low`\ (bits 7--4)
+
+ G\ :sub:`10low`\ (bits 3--0)
+ - G\ :sub:`12high`
+ - R\ :sub:`13high`
+ - R\ :sub:`13low`\ (bits 3--2)
+
+ G\ :sub:`12low`\ (bits 3--0)
+ - - start + 12:
+ - B\ :sub:`20high`
+ - G\ :sub:`21high`
+ - G\ :sub:`21low`\ (bits 7--4)
+
+ B\ :sub:`20low`\ (bits 3--0)
+ - B\ :sub:`22high`
+ - G\ :sub:`23high`
+ - G\ :sub:`23low`\ (bits 7--4)
+
+ B\ :sub:`22low`\ (bits 3--0)
+ - - start + 18:
+ - G\ :sub:`30high`
+ - R\ :sub:`31high`
+ - R\ :sub:`31low`\ (bits 7--4)
+
+ G\ :sub:`30low`\ (bits 3--0)
+ - G\ :sub:`32high`
+ - R\ :sub:`33high`
+ - R\ :sub:`33low`\ (bits 3--2)
+
+ G\ :sub:`32low`\ (bits 3--0)
diff --git a/Documentation/media/uapi/v4l/pixfmt-uyvy.rst b/Documentation/media/uapi/v4l/pixfmt-uyvy.rst
index 30660e04dd0e..ecdc2d94c209 100644
--- a/Documentation/media/uapi/v4l/pixfmt-uyvy.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-uyvy.rst
@@ -65,7 +65,7 @@ Each cell is one byte.
- Y'\ :sub:`33`
-**Color Sample Location..**
+**Color Sample Location:**
diff --git a/Documentation/media/uapi/v4l/pixfmt-003.rst b/Documentation/media/uapi/v4l/pixfmt-v4l2-mplane.rst
index 337e8188caf1..337e8188caf1 100644
--- a/Documentation/media/uapi/v4l/pixfmt-003.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-v4l2-mplane.rst
diff --git a/Documentation/media/uapi/v4l/pixfmt-002.rst b/Documentation/media/uapi/v4l/pixfmt-v4l2.rst
index 2ee164c25637..2ee164c25637 100644
--- a/Documentation/media/uapi/v4l/pixfmt-002.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-v4l2.rst
diff --git a/Documentation/media/uapi/v4l/pixfmt-vyuy.rst b/Documentation/media/uapi/v4l/pixfmt-vyuy.rst
index a3f61f280b94..670c339c1714 100644
--- a/Documentation/media/uapi/v4l/pixfmt-vyuy.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-vyuy.rst
@@ -65,7 +65,7 @@ Each cell is one byte.
- Y'\ :sub:`33`
-**Color Sample Location..**
+**Color Sample Location:**
.. flat-table::
:header-rows: 0
diff --git a/Documentation/media/uapi/v4l/pixfmt-y41p.rst b/Documentation/media/uapi/v4l/pixfmt-y41p.rst
index 05d040c46a47..e1fe548807a4 100644
--- a/Documentation/media/uapi/v4l/pixfmt-y41p.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-y41p.rst
@@ -88,7 +88,7 @@ Each cell is one byte.
- Y'\ :sub:`37`
-**Color Sample Location..**
+**Color Sample Location:**
.. flat-table::
:header-rows: 0
diff --git a/Documentation/media/uapi/v4l/pixfmt-yuv410.rst b/Documentation/media/uapi/v4l/pixfmt-yuv410.rst
index 0c49915af850..b51a0d1c6108 100644
--- a/Documentation/media/uapi/v4l/pixfmt-yuv410.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-yuv410.rst
@@ -67,7 +67,7 @@ Each cell is one byte.
- Cb\ :sub:`00`
-**Color Sample Location..**
+**Color Sample Location:**
diff --git a/Documentation/media/uapi/v4l/pixfmt-yuv411p.rst b/Documentation/media/uapi/v4l/pixfmt-yuv411p.rst
index 2cf33fad7254..2582341972db 100644
--- a/Documentation/media/uapi/v4l/pixfmt-yuv411p.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-yuv411p.rst
@@ -75,7 +75,7 @@ Each cell is one byte.
- Cr\ :sub:`30`
-**Color Sample Location..**
+**Color Sample Location:**
diff --git a/Documentation/media/uapi/v4l/pixfmt-yuv420.rst b/Documentation/media/uapi/v4l/pixfmt-yuv420.rst
index fd98904058ed..a9b85c4b1dbc 100644
--- a/Documentation/media/uapi/v4l/pixfmt-yuv420.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-yuv420.rst
@@ -76,7 +76,7 @@ Each cell is one byte.
- Cb\ :sub:`11`
-**Color Sample Location..**
+**Color Sample Location:**
diff --git a/Documentation/media/uapi/v4l/pixfmt-yuv420m.rst b/Documentation/media/uapi/v4l/pixfmt-yuv420m.rst
index cce8c477fdfc..32c68c33f2b1 100644
--- a/Documentation/media/uapi/v4l/pixfmt-yuv420m.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-yuv420m.rst
@@ -85,7 +85,7 @@ Each cell is one byte.
- Cr\ :sub:`11`
-**Color Sample Location..**
+**Color Sample Location:**
diff --git a/Documentation/media/uapi/v4l/pixfmt-yuv422m.rst b/Documentation/media/uapi/v4l/pixfmt-yuv422m.rst
index d986393aa934..9e7028c4967c 100644
--- a/Documentation/media/uapi/v4l/pixfmt-yuv422m.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-yuv422m.rst
@@ -96,7 +96,7 @@ Each cell is one byte.
- Cr\ :sub:`31`
-**Color Sample Location..**
+**Color Sample Location:**
diff --git a/Documentation/media/uapi/v4l/pixfmt-yuv422p.rst b/Documentation/media/uapi/v4l/pixfmt-yuv422p.rst
index e6f5de546dba..a96f836c7fa5 100644
--- a/Documentation/media/uapi/v4l/pixfmt-yuv422p.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-yuv422p.rst
@@ -84,7 +84,7 @@ Each cell is one byte.
- Cr\ :sub:`31`
-**Color Sample Location..**
+**Color Sample Location:**
diff --git a/Documentation/media/uapi/v4l/pixfmt-yuv444m.rst b/Documentation/media/uapi/v4l/pixfmt-yuv444m.rst
index 830fbf6fcd1d..8605bfaee112 100644
--- a/Documentation/media/uapi/v4l/pixfmt-yuv444m.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-yuv444m.rst
@@ -106,7 +106,7 @@ Each cell is one byte.
- Cr\ :sub:`33`
-**Color Sample Location..**
+**Color Sample Location:**
diff --git a/Documentation/media/uapi/v4l/pixfmt-yuyv.rst b/Documentation/media/uapi/v4l/pixfmt-yuyv.rst
index e1bdd6b1aefc..53e876d053fb 100644
--- a/Documentation/media/uapi/v4l/pixfmt-yuyv.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-yuyv.rst
@@ -68,7 +68,7 @@ Each cell is one byte.
- Cr\ :sub:`31`
-**Color Sample Location..**
+**Color Sample Location:**
diff --git a/Documentation/media/uapi/v4l/pixfmt-yvyu.rst b/Documentation/media/uapi/v4l/pixfmt-yvyu.rst
index 0244ce6741a6..b9c31746e565 100644
--- a/Documentation/media/uapi/v4l/pixfmt-yvyu.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-yvyu.rst
@@ -65,7 +65,7 @@ Each cell is one byte.
- Cb\ :sub:`31`
-**Color Sample Location..**
+**Color Sample Location:**
.. flat-table::
:header-rows: 0
diff --git a/Documentation/media/uapi/v4l/pixfmt.rst b/Documentation/media/uapi/v4l/pixfmt.rst
index 00737152497b..2aa449e2da67 100644
--- a/Documentation/media/uapi/v4l/pixfmt.rst
+++ b/Documentation/media/uapi/v4l/pixfmt.rst
@@ -19,20 +19,19 @@ see also :ref:`VIDIOC_G_FBUF <VIDIOC_G_FBUF>`.)
.. toctree::
:maxdepth: 1
- pixfmt-002
- pixfmt-003
- pixfmt-004
- colorspaces
- pixfmt-006
- pixfmt-007
- pixfmt-008
+ pixfmt-v4l2
+ pixfmt-v4l2-mplane
+ pixfmt-intro
pixfmt-indexed
pixfmt-rgb
yuv-formats
hsv-formats
depth-formats
- pixfmt-013
+ pixfmt-compressed
sdr-formats
tch-formats
meta-formats
pixfmt-reserved
+ colorspaces
+ colorspaces-defs
+ colorspaces-details
diff --git a/Documentation/media/uapi/v4l/sdr-formats.rst b/Documentation/media/uapi/v4l/sdr-formats.rst
index f863c08f1add..2037f5bad727 100644
--- a/Documentation/media/uapi/v4l/sdr-formats.rst
+++ b/Documentation/media/uapi/v4l/sdr-formats.rst
@@ -17,3 +17,6 @@ These formats are used for :ref:`SDR <sdr>` interface only.
pixfmt-sdr-cs08
pixfmt-sdr-cs14le
pixfmt-sdr-ru12le
+ pixfmt-sdr-pcu16be
+ pixfmt-sdr-pcu18be
+ pixfmt-sdr-pcu20be
diff --git a/Documentation/media/uapi/v4l/selection.svg b/Documentation/media/uapi/v4l/selection.svg
index d309187af967..a93e3b59786d 100644
--- a/Documentation/media/uapi/v4l/selection.svg
+++ b/Documentation/media/uapi/v4l/selection.svg
@@ -1,5812 +1,1151 @@
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diff --git a/Documentation/media/uapi/v4l/subdev-formats.rst b/Documentation/media/uapi/v4l/subdev-formats.rst
index 8e73bb00c0d5..b1eea44550e1 100644
--- a/Documentation/media/uapi/v4l/subdev-formats.rst
+++ b/Documentation/media/uapi/v4l/subdev-formats.rst
@@ -1586,7 +1586,7 @@ JEIDA defined bit mapping will be named
.. raw:: latex
- \begin{adjustbox}{width=\columnwidth}
+ \tiny
.. _v4l2-mbus-pixelcode-rgb-lvds:
@@ -1784,7 +1784,7 @@ JEIDA defined bit mapping will be named
.. raw:: latex
- \end{adjustbox}\newline\newline
+ \normalsize
Bayer Formats
@@ -7321,11 +7321,14 @@ following information.
The following table lists existing HSV/HSL formats.
+
.. raw:: latex
- \newline\newline\begin{adjustbox}{width=\columnwidth}
+ \begingroup
+ \tiny
+ \setlength{\tabcolsep}{2pt}
-.. tabularcolumns:: |p{6.2cm}|p{1.6cm}|p{0.7cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|
+.. tabularcolumns:: |p{3.0cm}|p{0.60cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|
.. _v4l2-mbus-pixelcode-hsv:
@@ -7413,7 +7416,7 @@ The following table lists existing HSV/HSL formats.
.. raw:: latex
- \end{adjustbox}\newline\newline
+ \normalsize
JPEG Compressed Formats
@@ -7435,7 +7438,7 @@ The following table lists existing JPEG compressed formats.
.. _v4l2-mbus-pixelcode-jpeg:
-.. tabularcolumns:: |p{5.6cm}|p{1.2cm}|p{10.7cm}|
+.. tabularcolumns:: |p{5.4cm}|p{1.4cm}|p{10.7cm}|
.. flat-table:: JPEG Formats
:header-rows: 1
@@ -7468,7 +7471,7 @@ formats.
.. _v4l2-mbus-pixelcode-vendor-specific:
-.. tabularcolumns:: |p{6.6cm}|p{1.2cm}|p{9.7cm}|
+.. tabularcolumns:: |p{6.8cm}|p{1.4cm}|p{9.3cm}|
.. flat-table:: Vendor and device specific formats
:header-rows: 1
diff --git a/Documentation/media/uapi/v4l/subdev-image-processing-crop.svg b/Documentation/media/uapi/v4l/subdev-image-processing-crop.svg
index 1903dd3846c2..ee1df49f83e8 100644
--- a/Documentation/media/uapi/v4l/subdev-image-processing-crop.svg
+++ b/Documentation/media/uapi/v4l/subdev-image-processing-crop.svg
@@ -18,11 +18,11 @@
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<rdf:RDF>
<cc:Work
- rdf:about="">
- <dc:format>image/svg+xml</dc:format>
- <dc:type
- rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
- <dc:title />
+ rdf:about="">
+ <dc:format>image/svg+xml</dc:format>
+ <dc:type
+ rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+ <dc:title />
</cc:Work>
</rdf:RDF>
</metadata>
diff --git a/Documentation/media/uapi/v4l/subdev-image-processing-full.svg b/Documentation/media/uapi/v4l/subdev-image-processing-full.svg
index 91cf51832c12..c10d222b9ea9 100644
--- a/Documentation/media/uapi/v4l/subdev-image-processing-full.svg
+++ b/Documentation/media/uapi/v4l/subdev-image-processing-full.svg
@@ -18,11 +18,11 @@
id="metadata260">
<rdf:RDF>
<cc:Work
- rdf:about="">
- <dc:format>image/svg+xml</dc:format>
- <dc:type
- rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
- <dc:title />
+ rdf:about="">
+ <dc:format>image/svg+xml</dc:format>
+ <dc:type
+ rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+ <dc:title />
</cc:Work>
</rdf:RDF>
</metadata>
diff --git a/Documentation/media/uapi/v4l/subdev-image-processing-scaling-multi-source.svg b/Documentation/media/uapi/v4l/subdev-image-processing-scaling-multi-source.svg
index cedcbf598923..3cb68bf9fc04 100644
--- a/Documentation/media/uapi/v4l/subdev-image-processing-scaling-multi-source.svg
+++ b/Documentation/media/uapi/v4l/subdev-image-processing-scaling-multi-source.svg
@@ -18,11 +18,11 @@
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<rdf:RDF>
<cc:Work
- rdf:about="">
- <dc:format>image/svg+xml</dc:format>
- <dc:type
- rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
- <dc:title />
+ rdf:about="">
+ <dc:format>image/svg+xml</dc:format>
+ <dc:type
+ rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+ <dc:title />
</cc:Work>
</rdf:RDF>
</metadata>
diff --git a/Documentation/media/uapi/v4l/v4l2-selection-targets.rst b/Documentation/media/uapi/v4l/v4l2-selection-targets.rst
index cab07de6f4da..87433ec76c6b 100644
--- a/Documentation/media/uapi/v4l/v4l2-selection-targets.rst
+++ b/Documentation/media/uapi/v4l/v4l2-selection-targets.rst
@@ -12,7 +12,7 @@ of the two interfaces they are used.
.. _v4l2-selection-targets-table:
-.. tabularcolumns:: |p{5.8cm}|p{1.4cm}|p{6.5cm}|p{1.2cm}|p{1.6cm}|
+.. tabularcolumns:: |p{6.0cm}|p{1.4cm}|p{7.4cm}|p{1.2cm}|p{1.4cm}|
.. flat-table:: Selection target definitions
:header-rows: 1
diff --git a/Documentation/media/uapi/v4l/v4l2.rst b/Documentation/media/uapi/v4l/v4l2.rst
index f52a11c949d3..2128717299b3 100644
--- a/Documentation/media/uapi/v4l/v4l2.rst
+++ b/Documentation/media/uapi/v4l/v4l2.rst
@@ -11,7 +11,9 @@ This part describes the Video for Linux API version 2 (V4L2 API) specification.
**Revision 4.5**
-.. class:: toc-title
+.. only:: html
+
+ .. class:: toc-title
Table of Contents
@@ -23,7 +25,6 @@ This part describes the Video for Linux API version 2 (V4L2 API) specification.
pixfmt
io
devices
- driver
libv4l
compat
user-func
diff --git a/Documentation/media/uapi/v4l/vbi_525.svg b/Documentation/media/uapi/v4l/vbi_525.svg
index b05f7777ccf8..643aec8d0ba2 100644
--- a/Documentation/media/uapi/v4l/vbi_525.svg
+++ b/Documentation/media/uapi/v4l/vbi_525.svg
@@ -42,19 +42,21 @@
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index c117ddb7bf7e..9b18243c0a06 100644
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diff --git a/Documentation/media/uapi/v4l/vidioc-create-bufs.rst b/Documentation/media/uapi/v4l/vidioc-create-bufs.rst
index aaca12fca06e..a39e18d69511 100644
--- a/Documentation/media/uapi/v4l/vidioc-create-bufs.rst
+++ b/Documentation/media/uapi/v4l/vidioc-create-bufs.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_create_buffers`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-cropcap.rst b/Documentation/media/uapi/v4l/vidioc-cropcap.rst
index f21a69b554e1..a65dbec6b20b 100644
--- a/Documentation/media/uapi/v4l/vidioc-cropcap.rst
+++ b/Documentation/media/uapi/v4l/vidioc-cropcap.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_cropcap`.
Description
@@ -39,17 +40,10 @@ structure. Drivers fill the rest of the structure. The results are
constant except when switching the video standard. Remember this switch
can occur implicit when switching the video input or output.
-Do not use the multiplanar buffer types. Use
-``V4L2_BUF_TYPE_VIDEO_CAPTURE`` instead of
-``V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE`` and use
-``V4L2_BUF_TYPE_VIDEO_OUTPUT`` instead of
-``V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE``.
-
This ioctl must be implemented for video capture or output devices that
support cropping and/or scaling and/or have non-square pixels, and for
overlay devices.
-
.. c:type:: v4l2_cropcap
.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
@@ -62,9 +56,9 @@ overlay devices.
* - __u32
- ``type``
- Type of the data stream, set by the application. Only these types
- are valid here: ``V4L2_BUF_TYPE_VIDEO_CAPTURE``,
- ``V4L2_BUF_TYPE_VIDEO_OUTPUT`` and
- ``V4L2_BUF_TYPE_VIDEO_OVERLAY``. See :c:type:`v4l2_buf_type`.
+ are valid here: ``V4L2_BUF_TYPE_VIDEO_CAPTURE``, ``V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE``,
+ ``V4L2_BUF_TYPE_VIDEO_OUTPUT``, ``V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE`` and
+ ``V4L2_BUF_TYPE_VIDEO_OVERLAY``. See :c:type:`v4l2_buf_type` and the note above.
* - struct :ref:`v4l2_rect <v4l2-rect-crop>`
- ``bounds``
- Defines the window within capturing or output is possible, this
@@ -90,6 +84,16 @@ overlay devices.
``pixelaspect`` to 1/1. Other common values are 54/59 for PAL and
SECAM, 11/10 for NTSC sampled according to [:ref:`itu601`].
+.. note::
+ Unfortunately in the case of multiplanar buffer types
+ (``V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE`` and ``V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE``)
+ this API was messed up with regards to how the :c:type:`v4l2_cropcap` ``type`` field
+ should be filled in. Some drivers only accepted the ``_MPLANE`` buffer type while
+ other drivers only accepted a non-multiplanar buffer type (i.e. without the
+ ``_MPLANE`` at the end).
+
+ Starting with kernel 4.13 both variations are allowed.
+
.. _v4l2-rect-crop:
diff --git a/Documentation/media/uapi/v4l/vidioc-dbg-g-chip-info.rst b/Documentation/media/uapi/v4l/vidioc-dbg-g-chip-info.rst
index e1e5507e79ff..7709852282c2 100644
--- a/Documentation/media/uapi/v4l/vidioc-dbg-g-chip-info.rst
+++ b/Documentation/media/uapi/v4l/vidioc-dbg-g-chip-info.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_dbg_chip_info`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-dbg-g-register.rst b/Documentation/media/uapi/v4l/vidioc-dbg-g-register.rst
index 5960a6547f41..f4e8dd5f7889 100644
--- a/Documentation/media/uapi/v4l/vidioc-dbg-g-register.rst
+++ b/Documentation/media/uapi/v4l/vidioc-dbg-g-register.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_dbg_register`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-dqevent.rst b/Documentation/media/uapi/v4l/vidioc-dqevent.rst
index 8d663a73818e..cb3565f36793 100644
--- a/Documentation/media/uapi/v4l/vidioc-dqevent.rst
+++ b/Documentation/media/uapi/v4l/vidioc-dqevent.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_event`.
Description
@@ -38,7 +39,7 @@ exceptions which the application may get by e.g. using the select system
call.
-.. tabularcolumns:: |p{3.0cm}|p{4.3cm}|p{2.5cm}|p{7.7cm}|
+.. tabularcolumns:: |p{3.0cm}|p{4.4cm}|p{2.4cm}|p{7.7cm}|
.. c:type:: v4l2_event
diff --git a/Documentation/media/uapi/v4l/vidioc-dv-timings-cap.rst b/Documentation/media/uapi/v4l/vidioc-dv-timings-cap.rst
index 424f3a1c7f56..63ead6b7a115 100644
--- a/Documentation/media/uapi/v4l/vidioc-dv-timings-cap.rst
+++ b/Documentation/media/uapi/v4l/vidioc-dv-timings-cap.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_dv_timings_cap`.
Description
@@ -97,7 +98,7 @@ that doesn't support them will return an ``EINVAL`` error code.
-.. tabularcolumns:: |p{1.0cm}|p{3.5cm}|p{3.5cm}|p{9.5cm}|
+.. tabularcolumns:: |p{1.0cm}|p{4.0cm}|p{3.5cm}|p{9.2cm}|
.. c:type:: v4l2_dv_timings_cap
diff --git a/Documentation/media/uapi/v4l/vidioc-encoder-cmd.rst b/Documentation/media/uapi/v4l/vidioc-encoder-cmd.rst
index ae20ee573757..5ae8c933b1b9 100644
--- a/Documentation/media/uapi/v4l/vidioc-encoder-cmd.rst
+++ b/Documentation/media/uapi/v4l/vidioc-encoder-cmd.rst
@@ -29,7 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
-
+ Pointer to struct :c:type:`v4l2_encoder_cmd`.
Description
===========
diff --git a/Documentation/media/uapi/v4l/vidioc-enum-dv-timings.rst b/Documentation/media/uapi/v4l/vidioc-enum-dv-timings.rst
index 3e9d0f69cc73..63dca65f49e4 100644
--- a/Documentation/media/uapi/v4l/vidioc-enum-dv-timings.rst
+++ b/Documentation/media/uapi/v4l/vidioc-enum-dv-timings.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_enum_dv_timings`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-enum-fmt.rst b/Documentation/media/uapi/v4l/vidioc-enum-fmt.rst
index a2adaa4bd4dd..019c513df217 100644
--- a/Documentation/media/uapi/v4l/vidioc-enum-fmt.rst
+++ b/Documentation/media/uapi/v4l/vidioc-enum-fmt.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_fmtdesc`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-enum-frameintervals.rst b/Documentation/media/uapi/v4l/vidioc-enum-frameintervals.rst
index 39492453f02d..fea7dc3c879d 100644
--- a/Documentation/media/uapi/v4l/vidioc-enum-frameintervals.rst
+++ b/Documentation/media/uapi/v4l/vidioc-enum-frameintervals.rst
@@ -26,9 +26,8 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
- Pointer to a struct :c:type:`v4l2_frmivalenum`
- structure that contains a pixel format and size and receives a frame
- interval.
+ Pointer to struct :c:type:`v4l2_frmivalenum`
+ that contains a pixel format and size and receives a frame interval.
Description
@@ -124,6 +123,8 @@ application should zero out all members except for the *IN* fields.
.. c:type:: v4l2_frmivalenum
+.. tabularcolumns:: |p{1.8cm}|p{4.4cm}|p{2.4cm}|p{8.9cm}|
+
.. flat-table:: struct v4l2_frmivalenum
:header-rows: 0
:stub-columns: 0
diff --git a/Documentation/media/uapi/v4l/vidioc-enum-framesizes.rst b/Documentation/media/uapi/v4l/vidioc-enum-framesizes.rst
index 628f1aa66338..6de117f163e0 100644
--- a/Documentation/media/uapi/v4l/vidioc-enum-framesizes.rst
+++ b/Documentation/media/uapi/v4l/vidioc-enum-framesizes.rst
@@ -26,7 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
- Pointer to a struct :c:type:`v4l2_frmsizeenum`
+ Pointer to struct :c:type:`v4l2_frmsizeenum`
that contains an index and pixel format and receives a frame width
and height.
@@ -140,6 +140,8 @@ application should zero out all members except for the *IN* fields.
.. c:type:: v4l2_frmsizeenum
+.. tabularcolumns:: |p{1.4cm}|p{5.9cm}|p{2.3cm}|p{8.0cm}|
+
.. flat-table:: struct v4l2_frmsizeenum
:header-rows: 0
:stub-columns: 0
diff --git a/Documentation/media/uapi/v4l/vidioc-enum-freq-bands.rst b/Documentation/media/uapi/v4l/vidioc-enum-freq-bands.rst
index 4e5f5e5bf632..195cf45f3c32 100644
--- a/Documentation/media/uapi/v4l/vidioc-enum-freq-bands.rst
+++ b/Documentation/media/uapi/v4l/vidioc-enum-freq-bands.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_frequency_band`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-enumaudio.rst b/Documentation/media/uapi/v4l/vidioc-enumaudio.rst
index 74bc3ed0bdd8..8e5193e8696f 100644
--- a/Documentation/media/uapi/v4l/vidioc-enumaudio.rst
+++ b/Documentation/media/uapi/v4l/vidioc-enumaudio.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_audio`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-enumaudioout.rst b/Documentation/media/uapi/v4l/vidioc-enumaudioout.rst
index 4470a1ece5cf..6d2b4f6e78b0 100644
--- a/Documentation/media/uapi/v4l/vidioc-enumaudioout.rst
+++ b/Documentation/media/uapi/v4l/vidioc-enumaudioout.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_audioout`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-enuminput.rst b/Documentation/media/uapi/v4l/vidioc-enuminput.rst
index 266e48ab237f..0350069a56c5 100644
--- a/Documentation/media/uapi/v4l/vidioc-enuminput.rst
+++ b/Documentation/media/uapi/v4l/vidioc-enuminput.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_input`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-enumoutput.rst b/Documentation/media/uapi/v4l/vidioc-enumoutput.rst
index 93a2cf3b310c..697dcd186ae3 100644
--- a/Documentation/media/uapi/v4l/vidioc-enumoutput.rst
+++ b/Documentation/media/uapi/v4l/vidioc-enumoutput.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_output`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-enumstd.rst b/Documentation/media/uapi/v4l/vidioc-enumstd.rst
index f2bdd45cfa0d..b7fda29f46a1 100644
--- a/Documentation/media/uapi/v4l/vidioc-enumstd.rst
+++ b/Documentation/media/uapi/v4l/vidioc-enumstd.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_standard`.
Description
@@ -224,12 +225,15 @@ support digital TV. See also the Linux DVB API at
#define V4L2_STD_ALL (V4L2_STD_525_60 |
V4L2_STD_625_50)
+
.. raw:: latex
- \begin{adjustbox}{width=\columnwidth}
+ \begingroup
+ \tiny
+ \setlength{\tabcolsep}{2pt}
.. NTSC/M PAL/M /N /B /D /H /I SECAM/B /D /K1 /L
-.. tabularcolumns:: |p{2.7cm}|p{2.6cm}|p{3.0cm}|p{3.2cm}|p{3.2cm}|p{2.2cm}|p{1.2cm}|p{3.2cm}|p{3.0cm}|p{2.0cm}|p{2.0cm}|p{2.0cm}|
+.. tabularcolumns:: |p{1.43cm}|p{1.38cm}|p{1.59cm}|p{1.7cm}|p{1.7cm}|p{1.17cm}|p{0.64cm}|p{1.71cm}|p{1.6cm}|p{1.07cm}|p{1.07cm}|p{1.07cm}|
.. _video-standards:
@@ -293,7 +297,7 @@ support digital TV. See also the Linux DVB API at
.. raw:: latex
- \end{adjustbox}\newline\newline
+ \endgroup
diff --git a/Documentation/media/uapi/v4l/vidioc-expbuf.rst b/Documentation/media/uapi/v4l/vidioc-expbuf.rst
index 246e48028d40..226e83eb28a9 100644
--- a/Documentation/media/uapi/v4l/vidioc-expbuf.rst
+++ b/Documentation/media/uapi/v4l/vidioc-expbuf.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_exportbuffer`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-g-audio.rst b/Documentation/media/uapi/v4l/vidioc-g-audio.rst
index 5b67e81a0db6..290851f99386 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-audio.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-audio.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_audio`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-g-audioout.rst b/Documentation/media/uapi/v4l/vidioc-g-audioout.rst
index d16ecbaddc59..1c98af33ee70 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-audioout.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-audioout.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_audioout`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-g-crop.rst b/Documentation/media/uapi/v4l/vidioc-g-crop.rst
index 56a36340f565..a6ed43ba9ca3 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-crop.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-crop.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_crop`.
Description
@@ -45,12 +46,6 @@ and struct :c:type:`v4l2_rect` substructure named ``c`` of a
v4l2_crop structure and call the :ref:`VIDIOC_S_CROP <VIDIOC_G_CROP>` ioctl with a pointer
to this structure.
-Do not use the multiplanar buffer types. Use
-``V4L2_BUF_TYPE_VIDEO_CAPTURE`` instead of
-``V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE`` and use
-``V4L2_BUF_TYPE_VIDEO_OUTPUT`` instead of
-``V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE``.
-
The driver first adjusts the requested dimensions against hardware
limits, i. e. the bounds given by the capture/output window, and it
rounds to the closest possible values of horizontal and vertical offset,
@@ -87,14 +82,24 @@ When cropping is not supported then no parameters are changed and
* - __u32
- ``type``
- Type of the data stream, set by the application. Only these types
- are valid here: ``V4L2_BUF_TYPE_VIDEO_CAPTURE``,
- ``V4L2_BUF_TYPE_VIDEO_OUTPUT`` and
- ``V4L2_BUF_TYPE_VIDEO_OVERLAY``. See :c:type:`v4l2_buf_type`.
+ are valid here: ``V4L2_BUF_TYPE_VIDEO_CAPTURE``, ``V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE``,
+ ``V4L2_BUF_TYPE_VIDEO_OUTPUT``, ``V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE`` and
+ ``V4L2_BUF_TYPE_VIDEO_OVERLAY``. See :c:type:`v4l2_buf_type` and the note above.
* - struct :c:type:`v4l2_rect`
- ``c``
- Cropping rectangle. The same co-ordinate system as for struct
:c:type:`v4l2_cropcap` ``bounds`` is used.
+.. note::
+ Unfortunately in the case of multiplanar buffer types
+ (``V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE`` and ``V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE``)
+ this API was messed up with regards to how the :c:type:`v4l2_crop` ``type`` field
+ should be filled in. Some drivers only accepted the ``_MPLANE`` buffer type while
+ other drivers only accepted a non-multiplanar buffer type (i.e. without the
+ ``_MPLANE`` at the end).
+
+ Starting with kernel 4.13 both variations are allowed.
+
Return Value
============
diff --git a/Documentation/media/uapi/v4l/vidioc-g-ctrl.rst b/Documentation/media/uapi/v4l/vidioc-g-ctrl.rst
index d8a379182a34..299b9aabbac2 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-ctrl.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-ctrl.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_control`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-g-dv-timings.rst b/Documentation/media/uapi/v4l/vidioc-g-dv-timings.rst
index e573c74138de..2696380626d4 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-dv-timings.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-dv-timings.rst
@@ -35,6 +35,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_dv_timings`.
Description
@@ -208,7 +209,7 @@ EBUSY
- 0
- BT.656/1120 timings
-
+.. tabularcolumns:: |p{4.5cm}|p{12.8cm}|
.. _dv-bt-standards:
@@ -231,7 +232,7 @@ EBUSY
There are no horizontal syncs/porches at all in this format.
Total blanking timings must be set in hsync or vsync fields only.
-.. tabularcolumns:: |p{6.0cm}|p{11.5cm}|
+.. tabularcolumns:: |p{7.0cm}|p{10.5cm}|
.. _dv-bt-flags:
diff --git a/Documentation/media/uapi/v4l/vidioc-g-edid.rst b/Documentation/media/uapi/v4l/vidioc-g-edid.rst
index a16a193a1cbf..acab90f06e5a 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-edid.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-edid.rst
@@ -36,6 +36,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_edid`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-g-enc-index.rst b/Documentation/media/uapi/v4l/vidioc-g-enc-index.rst
index 418e886fd44b..9dfe64fc21a4 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-enc-index.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-enc-index.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_enc_idx`.
Description
@@ -55,7 +56,7 @@ Currently this ioctl is only defined for MPEG-2 program streams and
video elementary streams.
-.. tabularcolumns:: |p{3.5cm}|p{5.6cm}|p{8.4cm}|
+.. tabularcolumns:: |p{3.8cm}|p{5.6cm}|p{8.1cm}|
.. c:type:: v4l2_enc_idx
diff --git a/Documentation/media/uapi/v4l/vidioc-g-ext-ctrls.rst b/Documentation/media/uapi/v4l/vidioc-g-ext-ctrls.rst
index 5ab8d2ac27b9..2011c2b2ee67 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-ext-ctrls.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-ext-ctrls.rst
@@ -34,6 +34,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_ext_controls`.
Description
@@ -180,7 +181,7 @@ still cause this situation.
``V4L2_CTRL_FLAG_HAS_PAYLOAD`` is set for this control.
-.. tabularcolumns:: |p{4.0cm}|p{2.0cm}|p{2.0cm}|p{8.5cm}|
+.. tabularcolumns:: |p{4.0cm}|p{2.2cm}|p{2.1cm}|p{8.2cm}|
.. c:type:: v4l2_ext_controls
diff --git a/Documentation/media/uapi/v4l/vidioc-g-fbuf.rst b/Documentation/media/uapi/v4l/vidioc-g-fbuf.rst
index 4a6a03d158ca..fc73bf0f6052 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-fbuf.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-fbuf.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_framebuffer`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-g-fmt.rst b/Documentation/media/uapi/v4l/vidioc-g-fmt.rst
index b853e48312e2..3ead350e099f 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-fmt.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-fmt.rst
@@ -31,6 +31,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_format`.
Description
@@ -87,7 +88,7 @@ The format as returned by :ref:`VIDIOC_TRY_FMT <VIDIOC_G_FMT>` must be identical
.. c:type:: v4l2_format
-.. tabularcolumns:: |p{1.2cm}|p{4.3cm}|p{3.0cm}|p{9.0cm}|
+.. tabularcolumns:: |p{1.2cm}|p{4.6cm}|p{3.0cm}|p{8.6cm}|
.. flat-table:: struct v4l2_format
:header-rows: 0
@@ -147,3 +148,9 @@ appropriately. The generic error codes are described at the
EINVAL
The struct :c:type:`v4l2_format` ``type`` field is
invalid or the requested buffer type not supported.
+
+EBUSY
+ The device is busy and cannot change the format. This could be
+ because or the device is streaming or buffers are allocated or
+ queued to the driver. Relevant for :ref:`VIDIOC_S_FMT
+ <VIDIOC_G_FMT>` only.
diff --git a/Documentation/media/uapi/v4l/vidioc-g-frequency.rst b/Documentation/media/uapi/v4l/vidioc-g-frequency.rst
index 46ab276f412b..c1cccb144660 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-frequency.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-frequency.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_frequency`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-g-input.rst b/Documentation/media/uapi/v4l/vidioc-g-input.rst
index 1364a918fbce..1dcef44eef02 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-input.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-input.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer an integer with input index.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-g-jpegcomp.rst b/Documentation/media/uapi/v4l/vidioc-g-jpegcomp.rst
index 8ba353067b33..a1773ea9543e 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-jpegcomp.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-jpegcomp.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_jpegcompression`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-g-modulator.rst b/Documentation/media/uapi/v4l/vidioc-g-modulator.rst
index 77d017eb3fcc..a47b6a15cfbe 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-modulator.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-modulator.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_modulator`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-g-output.rst b/Documentation/media/uapi/v4l/vidioc-g-output.rst
index 7750948fc61b..3e0093f66834 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-output.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-output.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to an integer with output index.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-g-parm.rst b/Documentation/media/uapi/v4l/vidioc-g-parm.rst
index 3b2e6e59a334..616a5ea3f8fa 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-parm.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-parm.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_streamparm`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-g-priority.rst b/Documentation/media/uapi/v4l/vidioc-g-priority.rst
index a763988f64e4..c28996b4a45c 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-priority.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-priority.rst
@@ -29,7 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
- Pointer to an enum v4l2_priority type.
+ Pointer to an enum :c:type:`v4l2_priority` type.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-g-selection.rst b/Documentation/media/uapi/v4l/vidioc-g-selection.rst
index deb1f6fb473b..f1d9df029e0d 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-selection.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-selection.rst
@@ -29,11 +29,8 @@ Arguments
``fd``
File descriptor returned by :ref:`open() <func-open>`.
-``request``
- VIDIOC_G_SELECTION, VIDIOC_S_SELECTION
-
``argp``
-
+ Pointer to struct :c:type:`v4l2_selection`.
Description
===========
@@ -42,11 +39,7 @@ The ioctls are used to query and configure selection rectangles.
To query the cropping (composing) rectangle set struct
:c:type:`v4l2_selection` ``type`` field to the
-respective buffer type. Do not use the multiplanar buffer types. Use
-``V4L2_BUF_TYPE_VIDEO_CAPTURE`` instead of
-``V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE`` and use
-``V4L2_BUF_TYPE_VIDEO_OUTPUT`` instead of
-``V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE``. The next step is setting the
+respective buffer type. The next step is setting the
value of struct :c:type:`v4l2_selection` ``target``
field to ``V4L2_SEL_TGT_CROP`` (``V4L2_SEL_TGT_COMPOSE``). Please refer
to table :ref:`v4l2-selections-common` or :ref:`selection-api` for
@@ -64,11 +57,7 @@ pixels.
To change the cropping (composing) rectangle set the struct
:c:type:`v4l2_selection` ``type`` field to the
-respective buffer type. Do not use multiplanar buffers. Use
-``V4L2_BUF_TYPE_VIDEO_CAPTURE`` instead of
-``V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE``. Use
-``V4L2_BUF_TYPE_VIDEO_OUTPUT`` instead of
-``V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE``. The next step is setting the
+respective buffer type. The next step is setting the
value of struct :c:type:`v4l2_selection` ``target`` to
``V4L2_SEL_TGT_CROP`` (``V4L2_SEL_TGT_COMPOSE``). Please refer to table
:ref:`v4l2-selections-common` or :ref:`selection-api` for additional
@@ -129,8 +118,8 @@ Selection targets and flags are documented in
.. _sel-const-adjust:
-.. figure:: constraints.*
- :alt: constraints.pdf / constraints.svg
+.. kernel-figure:: constraints.svg
+ :alt: constraints.svg
:align: center
Size adjustments with constraint flags.
@@ -169,6 +158,16 @@ Selection targets and flags are documented in
- Reserved fields for future use. Drivers and applications must zero
this array.
+.. note::
+ Unfortunately in the case of multiplanar buffer types
+ (``V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE`` and ``V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE``)
+ this API was messed up with regards to how the :c:type:`v4l2_selection` ``type`` field
+ should be filled in. Some drivers only accepted the ``_MPLANE`` buffer type while
+ other drivers only accepted a non-multiplanar buffer type (i.e. without the
+ ``_MPLANE`` at the end).
+
+ Starting with kernel 4.13 both variations are allowed.
+
Return Value
============
diff --git a/Documentation/media/uapi/v4l/vidioc-g-sliced-vbi-cap.rst b/Documentation/media/uapi/v4l/vidioc-g-sliced-vbi-cap.rst
index d7e2b2fa8b88..a9633cae76c5 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-sliced-vbi-cap.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-sliced-vbi-cap.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_sliced_vbi_cap`.
Description
@@ -122,9 +123,9 @@ the sliced VBI API is unsupported or ``type`` is invalid.
.. raw:: latex
- \begin{adjustbox}{width=\columnwidth}
+ \scriptsize
-.. tabularcolumns:: |p{5.0cm}|p{1.4cm}|p{3.0cm}|p{2.5cm}|p{9.0cm}|
+.. tabularcolumns:: |p{3.5cm}|p{1.0cm}|p{2.0cm}|p{2.0cm}|p{8.0cm}|
.. _vbi-services:
@@ -180,7 +181,7 @@ the sliced VBI API is unsupported or ``type`` is invalid.
.. raw:: latex
- \end{adjustbox}\newline\newline
+ \normalsize
Return Value
diff --git a/Documentation/media/uapi/v4l/vidioc-g-std.rst b/Documentation/media/uapi/v4l/vidioc-g-std.rst
index cd856ad21a28..90791ab51a53 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-std.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-std.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to :c:type:`v4l2_std_id`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-g-tuner.rst b/Documentation/media/uapi/v4l/vidioc-g-tuner.rst
index 57c79fa43866..acdd15901a51 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-tuner.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-tuner.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_tuner`.
Description
@@ -392,22 +393,25 @@ To change the radio frequency the
.. raw:: latex
- \begin{adjustbox}{width=\columnwidth}
+ \scriptsize
+
+.. tabularcolumns:: |p{1.5cm}|p{1.5cm}|p{2.9cm}|p{2.9cm}|p{2.9cm}|p{2.9cm}|
.. _tuner-matrix:
.. flat-table:: Tuner Audio Matrix
:header-rows: 2
:stub-columns: 0
+ :widths: 7 7 14 14 14 14
* -
- - :cspan:`5` Selected ``V4L2_TUNER_MODE_``
+ - :cspan:`4` Selected ``V4L2_TUNER_MODE_``
* - Received ``V4L2_TUNER_SUB_``
- ``MONO``
- ``STEREO``
- ``LANG1``
- ``LANG2 = SAP``
- - ``LANG1_LANG2``\ [#f1]_
+ - ``LANG1_LANG2``\ [#f1]_
* - ``MONO``
- Mono
- Mono/Mono
@@ -434,14 +438,14 @@ To change the radio frequency the
- L+R/SAP (preferred) or L/R or L+R/L+R
* - ``LANG1 | LANG2``
- Language 1
- - Lang1/Lang2 (deprecated [#f2]_) or Lang1/Lang1
+ - Lang1/Lang2 (deprecated\ [#f2]_) or Lang1/Lang1
- Language 1
- Language 2
- Lang1/Lang2 (preferred) or Lang1/Lang1
.. raw:: latex
- \end{adjustbox}\newline\newline
+ \normalsize
Return Value
============
diff --git a/Documentation/media/uapi/v4l/vidioc-overlay.rst b/Documentation/media/uapi/v4l/vidioc-overlay.rst
index cd7b62ebc53b..1383e3db25fc 100644
--- a/Documentation/media/uapi/v4l/vidioc-overlay.rst
+++ b/Documentation/media/uapi/v4l/vidioc-overlay.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to an integer.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-prepare-buf.rst b/Documentation/media/uapi/v4l/vidioc-prepare-buf.rst
index bdcfd9fe550d..70687a86ae38 100644
--- a/Documentation/media/uapi/v4l/vidioc-prepare-buf.rst
+++ b/Documentation/media/uapi/v4l/vidioc-prepare-buf.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_buffer`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-qbuf.rst b/Documentation/media/uapi/v4l/vidioc-qbuf.rst
index 1f3612637200..9e448a4aa3aa 100644
--- a/Documentation/media/uapi/v4l/vidioc-qbuf.rst
+++ b/Documentation/media/uapi/v4l/vidioc-qbuf.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_buffer`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-query-dv-timings.rst b/Documentation/media/uapi/v4l/vidioc-query-dv-timings.rst
index 0d16853b1b51..6c82eafd28bb 100644
--- a/Documentation/media/uapi/v4l/vidioc-query-dv-timings.rst
+++ b/Documentation/media/uapi/v4l/vidioc-query-dv-timings.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_dv_timings`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-querybuf.rst b/Documentation/media/uapi/v4l/vidioc-querybuf.rst
index 0bdc8e0abddc..dd54747fabc9 100644
--- a/Documentation/media/uapi/v4l/vidioc-querybuf.rst
+++ b/Documentation/media/uapi/v4l/vidioc-querybuf.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_buffer`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-querycap.rst b/Documentation/media/uapi/v4l/vidioc-querycap.rst
index 12e0d9a63cd8..66fb1b3d6e6e 100644
--- a/Documentation/media/uapi/v4l/vidioc-querycap.rst
+++ b/Documentation/media/uapi/v4l/vidioc-querycap.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_capability`.
Description
@@ -91,12 +92,13 @@ specification the ioctl returns an ``EINVAL`` error code.
stack from a newer kernel.
The version number is formatted using the ``KERNEL_VERSION()``
- macro:
+ macro. For example if the media stack corresponds to the V4L2
+ version shipped with Kernel 4.14, it would be equivalent to:
* - :cspan:`2`
``#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))``
- ``__u32 version = KERNEL_VERSION(0, 8, 1);``
+ ``__u32 version = KERNEL_VERSION(4, 14, 0);``
``printf ("Version: %u.%u.%u\\n",``
@@ -131,7 +133,7 @@ specification the ioctl returns an ``EINVAL`` error code.
-.. tabularcolumns:: |p{6cm}|p{2.2cm}|p{8.8cm}|
+.. tabularcolumns:: |p{6.1cm}|p{2.2cm}|p{8.7cm}|
.. _device-capabilities:
diff --git a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
index 41c5744a1239..5bd26e8c9a1a 100644
--- a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
+++ b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
@@ -32,6 +32,8 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_queryctl`, :c:type:`v4l2_query_ext_ctrl`
+ or :c:type`v4l2_querymenu` (depending on the ioctl).
Description
@@ -274,7 +276,7 @@ See also the examples in :ref:`control`.
-.. tabularcolumns:: |p{1.2cm}|p{0.6cm}|p{1.6cm}|p{13.5cm}|
+.. tabularcolumns:: |p{1.2cm}|p{1.0cm}|p{1.7cm}|p{13.0cm}|
.. _v4l2-querymenu:
diff --git a/Documentation/media/uapi/v4l/vidioc-querystd.rst b/Documentation/media/uapi/v4l/vidioc-querystd.rst
index 3ef9ab37f582..cf40bca19b9f 100644
--- a/Documentation/media/uapi/v4l/vidioc-querystd.rst
+++ b/Documentation/media/uapi/v4l/vidioc-querystd.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to :c:type:`v4l2_std_id`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-reqbufs.rst b/Documentation/media/uapi/v4l/vidioc-reqbufs.rst
index a4180d576ee5..316f52c8a310 100644
--- a/Documentation/media/uapi/v4l/vidioc-reqbufs.rst
+++ b/Documentation/media/uapi/v4l/vidioc-reqbufs.rst
@@ -26,7 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
-
+ Pointer to struct :c:type:`v4l2_requestbuffers`.
Description
===========
diff --git a/Documentation/media/uapi/v4l/vidioc-s-hw-freq-seek.rst b/Documentation/media/uapi/v4l/vidioc-s-hw-freq-seek.rst
index 5672ca48d2bd..b318cb8e1df3 100644
--- a/Documentation/media/uapi/v4l/vidioc-s-hw-freq-seek.rst
+++ b/Documentation/media/uapi/v4l/vidioc-s-hw-freq-seek.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_hw_freq_seek`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-streamon.rst b/Documentation/media/uapi/v4l/vidioc-streamon.rst
index 972d5b3c74aa..e851a6961b78 100644
--- a/Documentation/media/uapi/v4l/vidioc-streamon.rst
+++ b/Documentation/media/uapi/v4l/vidioc-streamon.rst
@@ -29,7 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
-
+ Pointer to an integer.
Description
===========
diff --git a/Documentation/media/uapi/v4l/vidioc-subdev-enum-frame-interval.rst b/Documentation/media/uapi/v4l/vidioc-subdev-enum-frame-interval.rst
index 1a02c935c8b5..1bfe3865dcc2 100644
--- a/Documentation/media/uapi/v4l/vidioc-subdev-enum-frame-interval.rst
+++ b/Documentation/media/uapi/v4l/vidioc-subdev-enum-frame-interval.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_subdev_frame_interval_enum`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-subdev-enum-frame-size.rst b/Documentation/media/uapi/v4l/vidioc-subdev-enum-frame-size.rst
index 746c24ed97a0..33fdc3ac9316 100644
--- a/Documentation/media/uapi/v4l/vidioc-subdev-enum-frame-size.rst
+++ b/Documentation/media/uapi/v4l/vidioc-subdev-enum-frame-size.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_subdev_frame_size_enum`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-subdev-enum-mbus-code.rst b/Documentation/media/uapi/v4l/vidioc-subdev-enum-mbus-code.rst
index 0dfee3829ee2..4e4291798e4b 100644
--- a/Documentation/media/uapi/v4l/vidioc-subdev-enum-mbus-code.rst
+++ b/Documentation/media/uapi/v4l/vidioc-subdev-enum-mbus-code.rst
@@ -26,6 +26,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_subdev_mbus_code_enum`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-subdev-g-crop.rst b/Documentation/media/uapi/v4l/vidioc-subdev-g-crop.rst
index 000e8fcd3f25..69b2ae8e7c15 100644
--- a/Documentation/media/uapi/v4l/vidioc-subdev-g-crop.rst
+++ b/Documentation/media/uapi/v4l/vidioc-subdev-g-crop.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_subdev_crop`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-subdev-g-fmt.rst b/Documentation/media/uapi/v4l/vidioc-subdev-g-fmt.rst
index b352456dfe2c..81c5d331af9a 100644
--- a/Documentation/media/uapi/v4l/vidioc-subdev-g-fmt.rst
+++ b/Documentation/media/uapi/v4l/vidioc-subdev-g-fmt.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_subdev_format`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-subdev-g-frame-interval.rst b/Documentation/media/uapi/v4l/vidioc-subdev-g-frame-interval.rst
index 46159dcfce30..5af0a7179941 100644
--- a/Documentation/media/uapi/v4l/vidioc-subdev-g-frame-interval.rst
+++ b/Documentation/media/uapi/v4l/vidioc-subdev-g-frame-interval.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_subdev_frame_interval`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-subdev-g-selection.rst b/Documentation/media/uapi/v4l/vidioc-subdev-g-selection.rst
index 071d9c033db6..b1d3dbbef42a 100644
--- a/Documentation/media/uapi/v4l/vidioc-subdev-g-selection.rst
+++ b/Documentation/media/uapi/v4l/vidioc-subdev-g-selection.rst
@@ -29,6 +29,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_subdev_selection`.
Description
diff --git a/Documentation/media/uapi/v4l/vidioc-subscribe-event.rst b/Documentation/media/uapi/v4l/vidioc-subscribe-event.rst
index e4a51431032c..b521efa53ceb 100644
--- a/Documentation/media/uapi/v4l/vidioc-subscribe-event.rst
+++ b/Documentation/media/uapi/v4l/vidioc-subscribe-event.rst
@@ -30,6 +30,7 @@ Arguments
File descriptor returned by :ref:`open() <func-open>`.
``argp``
+ Pointer to struct :c:type:`v4l2_event_subscription`.
Description
@@ -39,7 +40,7 @@ Subscribe or unsubscribe V4L2 event. Subscribed events are dequeued by
using the :ref:`VIDIOC_DQEVENT` ioctl.
-.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
+.. tabularcolumns:: |p{4.6cm}|p{4.4cm}|p{8.7cm}|
.. c:type:: v4l2_event_subscription
@@ -72,7 +73,7 @@ using the :ref:`VIDIOC_DQEVENT` ioctl.
-.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
+.. tabularcolumns:: |p{6.8cm}|p{2.2cm}|p{8.5cm}|
.. _event-flags:
diff --git a/Documentation/media/v4l-drivers/au0828-cardlist.rst b/Documentation/media/v4l-drivers/au0828-cardlist.rst
index 82d2567bc7c1..bb87b7b36a83 100644
--- a/Documentation/media/v4l-drivers/au0828-cardlist.rst
+++ b/Documentation/media/v4l-drivers/au0828-cardlist.rst
@@ -1,13 +1,37 @@
AU0828 cards list
=================
-=========== ========================== =======================================================================================================================
-Card number Card name USB IDs
-=========== ========================== =======================================================================================================================
-0 Unknown board
-1 Hauppauge HVR950Q 2040:7200, 2040:7210, 2040:7217, 2040:721b, 2040:721e, 2040:721f, 2040:7280, 0fd9:0008, 2040:7260, 2040:7213, 2040:7270
-2 Hauppauge HVR850 2040:7240
-3 DViCO FusionHDTV USB 0fe9:d620
-4 Hauppauge HVR950Q rev xxF8 2040:7201, 2040:7211, 2040:7281
-5 Hauppauge Woodbury 05e1:0480, 2040:8200
-=========== ========================== =======================================================================================================================
+.. tabularcolumns:: |p{1.4cm}|p{6.5cm}|p{10.0cm}|
+
+.. flat-table::
+ :header-rows: 1
+ :widths: 2 19 18
+ :stub-columns: 0
+
+ * - Card number
+ - Card name
+ - USB IDs
+
+ * - 0
+ - Unknown board
+ -
+
+ * - 1
+ - Hauppauge HVR950Q
+ - 2040:7200, 2040:7210, 2040:7217, 2040:721b, 2040:721e, 2040:721f, 2040:7280, 0fd9:0008, 2040:7260, 2040:7213, 2040:7270
+
+ * - 2
+ - Hauppauge HVR850
+ - 2040:7240
+
+ * - 3
+ - DViCO FusionHDTV USB
+ - 0fe9:d620
+
+ * - 4
+ - Hauppauge HVR950Q rev xxF8
+ - 2040:7201, 2040:7211, 2040:7281
+
+ * - 5
+ - Hauppauge Woodbury
+ - 05e1:0480, 2040:8200
diff --git a/Documentation/media/v4l-drivers/bttv-cardlist.rst b/Documentation/media/v4l-drivers/bttv-cardlist.rst
index 28a01cd6cf2e..8da27b924e01 100644
--- a/Documentation/media/v4l-drivers/bttv-cardlist.rst
+++ b/Documentation/media/v4l-drivers/bttv-cardlist.rst
@@ -1,174 +1,681 @@
BTTV cards list
===============
-=========== ================================================================================= ==============================================================================================================================================================================
-Card number Card name PCI IDs
-=========== ================================================================================= ==============================================================================================================================================================================
-0 *** UNKNOWN/GENERIC ***
-1 MIRO PCTV
-2 Hauppauge (bt848)
-3 STB, Gateway P/N 6000699 (bt848)
-4 Intel Create and Share PCI/ Smart Video Recorder III
-5 Diamond DTV2000
-6 AVerMedia TVPhone
-7 MATRIX-Vision MV-Delta
-8 Lifeview FlyVideo II (Bt848) LR26 / MAXI TV Video PCI2 LR26
-9 IMS/IXmicro TurboTV
-10 Hauppauge (bt878) 0070:13eb, 0070:3900, 2636:10b4
-11 MIRO PCTV pro
-12 ADS Technologies Channel Surfer TV (bt848)
-13 AVerMedia TVCapture 98 1461:0002, 1461:0004, 1461:0300
-14 Aimslab Video Highway Xtreme (VHX)
-15 Zoltrix TV-Max a1a0:a0fc
-16 Prolink Pixelview PlayTV (bt878)
-17 Leadtek WinView 601
-18 AVEC Intercapture
-19 Lifeview FlyVideo II EZ /FlyKit LR38 Bt848 (capture only)
-20 CEI Raffles Card
-21 Lifeview FlyVideo 98/ Lucky Star Image World ConferenceTV LR50
-22 Askey CPH050/ Phoebe Tv Master + FM 14ff:3002
-23 Modular Technology MM201/MM202/MM205/MM210/MM215 PCTV, bt878 14c7:0101
-24 Askey CPH05X/06X (bt878) [many vendors] 144f:3002, 144f:3005, 144f:5000, 14ff:3000
-25 Terratec TerraTV+ Version 1.0 (Bt848)/ Terra TValue Version 1.0/ Vobis TV-Boostar
-26 Hauppauge WinCam newer (bt878)
-27 Lifeview FlyVideo 98/ MAXI TV Video PCI2 LR50
-28 Terratec TerraTV+ Version 1.1 (bt878) 153b:1127, 1852:1852
-29 Imagenation PXC200 1295:200a
-30 Lifeview FlyVideo 98 LR50 1f7f:1850
-31 Formac iProTV, Formac ProTV I (bt848)
-32 Intel Create and Share PCI/ Smart Video Recorder III
-33 Terratec TerraTValue Version Bt878 153b:1117, 153b:1118, 153b:1119, 153b:111a, 153b:1134, 153b:5018
-34 Leadtek WinFast 2000/ WinFast 2000 XP 107d:6606, 107d:6609, 6606:217d, f6ff:fff6
-35 Lifeview FlyVideo 98 LR50 / Chronos Video Shuttle II 1851:1850, 1851:a050
-36 Lifeview FlyVideo 98FM LR50 / Typhoon TView TV/FM Tuner 1852:1852
-37 Prolink PixelView PlayTV pro
-38 Askey CPH06X TView99 144f:3000, 144f:a005, a04f:a0fc
-39 Pinnacle PCTV Studio/Rave 11bd:0012, bd11:1200, bd11:ff00, 11bd:ff12
-40 STB TV PCI FM, Gateway P/N 6000704 (bt878), 3Dfx VoodooTV 100 10b4:2636, 10b4:2645, 121a:3060
-41 AVerMedia TVPhone 98 1461:0001, 1461:0003
-42 ProVideo PV951 aa0c:146c
-43 Little OnAir TV
-44 Sigma TVII-FM
-45 MATRIX-Vision MV-Delta 2
-46 Zoltrix Genie TV/FM 15b0:4000, 15b0:400a, 15b0:400d, 15b0:4010, 15b0:4016
-47 Terratec TV/Radio+ 153b:1123
-48 Askey CPH03x/ Dynalink Magic TView
-49 IODATA GV-BCTV3/PCI 10fc:4020
-50 Prolink PV-BT878P+4E / PixelView PlayTV PAK / Lenco MXTV-9578 CP
-51 Eagle Wireless Capricorn2 (bt878A)
-52 Pinnacle PCTV Studio Pro
-53 Typhoon TView RDS + FM Stereo / KNC1 TV Station RDS
-54 Lifeview FlyVideo 2000 /FlyVideo A2/ Lifetec LT 9415 TV [LR90]
-55 Askey CPH031/ BESTBUY Easy TV
-56 Lifeview FlyVideo 98FM LR50 a051:41a0
-57 GrandTec 'Grand Video Capture' (Bt848) 4344:4142
-58 Askey CPH060/ Phoebe TV Master Only (No FM)
-59 Askey CPH03x TV Capturer
-60 Modular Technology MM100PCTV
-61 AG Electronics GMV1 15cb:0101
-62 Askey CPH061/ BESTBUY Easy TV (bt878)
-63 ATI TV-Wonder 1002:0001
-64 ATI TV-Wonder VE 1002:0003
-65 Lifeview FlyVideo 2000S LR90
-66 Terratec TValueRadio 153b:1135, 153b:ff3b
-67 IODATA GV-BCTV4/PCI 10fc:4050
-68 3Dfx VoodooTV FM (Euro) 10b4:2637
-69 Active Imaging AIMMS
-70 Prolink Pixelview PV-BT878P+ (Rev.4C,8E)
-71 Lifeview FlyVideo 98EZ (capture only) LR51 1851:1851
-72 Prolink Pixelview PV-BT878P+9B (PlayTV Pro rev.9B FM+NICAM) 1554:4011
-73 Sensoray 311/611 6000:0311, 6000:0611
-74 RemoteVision MX (RV605)
-75 Powercolor MTV878/ MTV878R/ MTV878F
-76 Canopus WinDVR PCI (COMPAQ Presario 3524JP, 5112JP) 0e11:0079
-77 GrandTec Multi Capture Card (Bt878)
-78 Jetway TV/Capture JW-TV878-FBK, Kworld KW-TV878RF 0a01:17de
-79 DSP Design TCVIDEO
-80 Hauppauge WinTV PVR 0070:4500
-81 IODATA GV-BCTV5/PCI 10fc:4070, 10fc:d018
-82 Osprey 100/150 (878) 0070:ff00
-83 Osprey 100/150 (848)
-84 Osprey 101 (848)
-85 Osprey 101/151
-86 Osprey 101/151 w/ svid
-87 Osprey 200/201/250/251
-88 Osprey 200/250 0070:ff01
-89 Osprey 210/220/230
-90 Osprey 500 0070:ff02
-91 Osprey 540 0070:ff04
-92 Osprey 2000 0070:ff03
-93 IDS Eagle
-94 Pinnacle PCTV Sat 11bd:001c
-95 Formac ProTV II (bt878)
-96 MachTV
-97 Euresys Picolo
-98 ProVideo PV150 aa00:1460, aa01:1461, aa02:1462, aa03:1463, aa04:1464, aa05:1465, aa06:1466, aa07:1467
-99 AD-TVK503
-100 Hercules Smart TV Stereo
-101 Pace TV & Radio Card
-102 IVC-200 0000:a155, 0001:a155, 0002:a155, 0003:a155, 0100:a155, 0101:a155, 0102:a155, 0103:a155, 0800:a155, 0801:a155, 0802:a155, 0803:a155
-103 Grand X-Guard / Trust 814PCI 0304:0102
-104 Nebula Electronics DigiTV 0071:0101
-105 ProVideo PV143 aa00:1430, aa00:1431, aa00:1432, aa00:1433, aa03:1433
-106 PHYTEC VD-009-X1 VD-011 MiniDIN (bt878)
-107 PHYTEC VD-009-X1 VD-011 Combi (bt878)
-108 PHYTEC VD-009 MiniDIN (bt878)
-109 PHYTEC VD-009 Combi (bt878)
-110 IVC-100 ff00:a132
-111 IVC-120G ff00:a182, ff01:a182, ff02:a182, ff03:a182, ff04:a182, ff05:a182, ff06:a182, ff07:a182, ff08:a182, ff09:a182, ff0a:a182, ff0b:a182, ff0c:a182, ff0d:a182, ff0e:a182, ff0f:a182
-112 pcHDTV HD-2000 TV 7063:2000
-113 Twinhan DST + clones 11bd:0026, 1822:0001, 270f:fc00, 1822:0026
-114 Winfast VC100 107d:6607
-115 Teppro TEV-560/InterVision IV-560
-116 SIMUS GVC1100 aa6a:82b2
-117 NGS NGSTV+
-118 LMLBT4
-119 Tekram M205 PRO
-120 Conceptronic CONTVFMi
-121 Euresys Picolo Tetra 1805:0105, 1805:0106, 1805:0107, 1805:0108
-122 Spirit TV Tuner
-123 AVerMedia AVerTV DVB-T 771 1461:0771
-124 AverMedia AverTV DVB-T 761 1461:0761
-125 MATRIX Vision Sigma-SQ
-126 MATRIX Vision Sigma-SLC
-127 APAC Viewcomp 878(AMAX)
-128 DViCO FusionHDTV DVB-T Lite 18ac:db10, 18ac:db11
-129 V-Gear MyVCD
-130 Super TV Tuner
-131 Tibet Systems 'Progress DVR' CS16
-132 Kodicom 4400R (master)
-133 Kodicom 4400R (slave)
-134 Adlink RTV24
-135 DViCO FusionHDTV 5 Lite 18ac:d500
-136 Acorp Y878F 9511:1540
-137 Conceptronic CTVFMi v2 036e:109e
-138 Prolink Pixelview PV-BT878P+ (Rev.2E)
-139 Prolink PixelView PlayTV MPEG2 PV-M4900
-140 Osprey 440 0070:ff07
-141 Asound Skyeye PCTV
-142 Sabrent TV-FM (bttv version)
-143 Hauppauge ImpactVCB (bt878) 0070:13eb
-144 MagicTV
-145 SSAI Security Video Interface 4149:5353
-146 SSAI Ultrasound Video Interface 414a:5353
-147 VoodooTV 200 (USA) 121a:3000
-148 DViCO FusionHDTV 2 dbc0:d200
-149 Typhoon TV-Tuner PCI (50684)
-150 Geovision GV-600 008a:763c
-151 Kozumi KTV-01C
-152 Encore ENL TV-FM-2 1000:1801
-153 PHYTEC VD-012 (bt878)
-154 PHYTEC VD-012-X1 (bt878)
-155 PHYTEC VD-012-X2 (bt878)
-156 IVCE-8784 0000:f050, 0001:f050, 0002:f050, 0003:f050
-157 Geovision GV-800(S) (master) 800a:763d
-158 Geovision GV-800(S) (slave) 800b:763d, 800c:763d, 800d:763d
-159 ProVideo PV183 1830:1540, 1831:1540, 1832:1540, 1833:1540, 1834:1540, 1835:1540, 1836:1540, 1837:1540
-160 Tongwei Video Technology TD-3116 f200:3116
-161 Aposonic W-DVR 0279:0228
-162 Adlink MPG24
-163 Bt848 Capture 14MHz
-164 CyberVision CV06 (SV)
-165 Kworld V-Stream Xpert TV PVR878
-166 PCI-8604PW
-=========== ================================================================================= ==============================================================================================================================================================================
+.. tabularcolumns:: |p{1.4cm}|p{11.1cm}|p{4.2cm}|
+
+.. flat-table::
+ :header-rows: 1
+ :widths: 2 19 18
+ :stub-columns: 0
+
+ * - Card number
+ - Card name
+ - PCI IDs
+
+ * - 0
+ - *** UNKNOWN/GENERIC ***
+ -
+
+ * - 1
+ - MIRO PCTV
+ -
+
+ * - 2
+ - Hauppauge (bt848)
+ -
+
+ * - 3
+ - STB, Gateway P/N 6000699 (bt848)
+ -
+
+ * - 4
+ - Intel Create and Share PCI/ Smart Video Recorder III
+ -
+
+ * - 5
+ - Diamond DTV2000
+ -
+
+ * - 6
+ - AVerMedia TVPhone
+ -
+
+ * - 7
+ - MATRIX-Vision MV-Delta
+ -
+
+ * - 8
+ - Lifeview FlyVideo II (Bt848) LR26 / MAXI TV Video PCI2 LR26
+ -
+
+ * - 9
+ - IMS/IXmicro TurboTV
+ -
+
+ * - 10
+ - Hauppauge (bt878)
+ - 0070:13eb, 0070:3900, 2636:10b4
+
+ * - 11
+ - MIRO PCTV pro
+ -
+
+ * - 12
+ - ADS Technologies Channel Surfer TV (bt848)
+ -
+
+ * - 13
+ - AVerMedia TVCapture 98
+ - 1461:0002, 1461:0004, 1461:0300
+
+ * - 14
+ - Aimslab Video Highway Xtreme (VHX)
+ -
+
+ * - 15
+ - Zoltrix TV-Max
+ - a1a0:a0fc
+
+ * - 16
+ - Prolink Pixelview PlayTV (bt878)
+ -
+
+ * - 17
+ - Leadtek WinView 601
+ -
+
+ * - 18
+ - AVEC Intercapture
+ -
+
+ * - 19
+ - Lifeview FlyVideo II EZ /FlyKit LR38 Bt848 (capture only)
+ -
+
+ * - 20
+ - CEI Raffles Card
+ -
+
+ * - 21
+ - Lifeview FlyVideo 98/ Lucky Star Image World ConferenceTV LR50
+ -
+
+ * - 22
+ - Askey CPH050/ Phoebe Tv Master + FM
+ - 14ff:3002
+
+ * - 23
+ - Modular Technology MM201/MM202/MM205/MM210/MM215 PCTV, bt878
+ - 14c7:0101
+
+ * - 24
+ - Askey CPH05X/06X (bt878) [many vendors]
+ - 144f:3002, 144f:3005, 144f:5000, 14ff:3000
+
+ * - 25
+ - Terratec TerraTV+ Version 1.0 (Bt848)/ Terra TValue Version 1.0/ Vobis TV-Boostar
+ -
+
+ * - 26
+ - Hauppauge WinCam newer (bt878)
+ -
+
+ * - 27
+ - Lifeview FlyVideo 98/ MAXI TV Video PCI2 LR50
+ -
+
+ * - 28
+ - Terratec TerraTV+ Version 1.1 (bt878)
+ - 153b:1127, 1852:1852
+
+ * - 29
+ - Imagenation PXC200
+ - 1295:200a
+
+ * - 30
+ - Lifeview FlyVideo 98 LR50
+ - 1f7f:1850
+
+ * - 31
+ - Formac iProTV, Formac ProTV I (bt848)
+ -
+
+ * - 32
+ - Intel Create and Share PCI/ Smart Video Recorder III
+ -
+
+ * - 33
+ - Terratec TerraTValue Version Bt878
+ - 153b:1117, 153b:1118, 153b:1119, 153b:111a, 153b:1134, 153b:5018
+
+ * - 34
+ - Leadtek WinFast 2000/ WinFast 2000 XP
+ - 107d:6606, 107d:6609, 6606:217d, f6ff:fff6
+
+ * - 35
+ - Lifeview FlyVideo 98 LR50 / Chronos Video Shuttle II
+ - 1851:1850, 1851:a050
+
+ * - 36
+ - Lifeview FlyVideo 98FM LR50 / Typhoon TView TV/FM Tuner
+ - 1852:1852
+
+ * - 37
+ - Prolink PixelView PlayTV pro
+ -
+
+ * - 38
+ - Askey CPH06X TView99
+ - 144f:3000, 144f:a005, a04f:a0fc
+
+ * - 39
+ - Pinnacle PCTV Studio/Rave
+ - 11bd:0012, bd11:1200, bd11:ff00, 11bd:ff12
+
+ * - 40
+ - STB TV PCI FM, Gateway P/N 6000704 (bt878), 3Dfx VoodooTV 100
+ - 10b4:2636, 10b4:2645, 121a:3060
+
+ * - 41
+ - AVerMedia TVPhone 98
+ - 1461:0001, 1461:0003
+
+ * - 42
+ - ProVideo PV951
+ - aa0c:146c
+
+ * - 43
+ - Little OnAir TV
+ -
+
+ * - 44
+ - Sigma TVII-FM
+ -
+
+ * - 45
+ - MATRIX-Vision MV-Delta 2
+ -
+
+ * - 46
+ - Zoltrix Genie TV/FM
+ - 15b0:4000, 15b0:400a, 15b0:400d, 15b0:4010, 15b0:4016
+
+ * - 47
+ - Terratec TV/Radio+
+ - 153b:1123
+
+ * - 48
+ - Askey CPH03x/ Dynalink Magic TView
+ -
+
+ * - 49
+ - IODATA GV-BCTV3/PCI
+ - 10fc:4020
+
+ * - 50
+ - Prolink PV-BT878P+4E / PixelView PlayTV PAK / Lenco MXTV-9578 CP
+ -
+
+ * - 51
+ - Eagle Wireless Capricorn2 (bt878A)
+ -
+
+ * - 52
+ - Pinnacle PCTV Studio Pro
+ -
+
+ * - 53
+ - Typhoon TView RDS + FM Stereo / KNC1 TV Station RDS
+ -
+
+ * - 54
+ - Lifeview FlyVideo 2000 /FlyVideo A2/ Lifetec LT 9415 TV [LR90]
+ -
+
+ * - 55
+ - Askey CPH031/ BESTBUY Easy TV
+ -
+
+ * - 56
+ - Lifeview FlyVideo 98FM LR50
+ - a051:41a0
+
+ * - 57
+ - GrandTec 'Grand Video Capture' (Bt848)
+ - 4344:4142
+
+ * - 58
+ - Askey CPH060/ Phoebe TV Master Only (No FM)
+ -
+
+ * - 59
+ - Askey CPH03x TV Capturer
+ -
+
+ * - 60
+ - Modular Technology MM100PCTV
+ -
+
+ * - 61
+ - AG Electronics GMV1
+ - 15cb:0101
+
+ * - 62
+ - Askey CPH061/ BESTBUY Easy TV (bt878)
+ -
+
+ * - 63
+ - ATI TV-Wonder
+ - 1002:0001
+
+ * - 64
+ - ATI TV-Wonder VE
+ - 1002:0003
+
+ * - 65
+ - Lifeview FlyVideo 2000S LR90
+ -
+
+ * - 66
+ - Terratec TValueRadio
+ - 153b:1135, 153b:ff3b
+
+ * - 67
+ - IODATA GV-BCTV4/PCI
+ - 10fc:4050
+
+ * - 68
+ - 3Dfx VoodooTV FM (Euro)
+ - 10b4:2637
+
+ * - 69
+ - Active Imaging AIMMS
+ -
+
+ * - 70
+ - Prolink Pixelview PV-BT878P+ (Rev.4C,8E)
+ -
+
+ * - 71
+ - Lifeview FlyVideo 98EZ (capture only) LR51
+ - 1851:1851
+
+ * - 72
+ - Prolink Pixelview PV-BT878P+9B (PlayTV Pro rev.9B FM+NICAM)
+ - 1554:4011
+
+ * - 73
+ - Sensoray 311/611
+ - 6000:0311, 6000:0611
+
+ * - 74
+ - RemoteVision MX (RV605)
+ -
+
+ * - 75
+ - Powercolor MTV878/ MTV878R/ MTV878F
+ -
+
+ * - 76
+ - Canopus WinDVR PCI (COMPAQ Presario 3524JP, 5112JP)
+ - 0e11:0079
+
+ * - 77
+ - GrandTec Multi Capture Card (Bt878)
+ -
+
+ * - 78
+ - Jetway TV/Capture JW-TV878-FBK, Kworld KW-TV878RF
+ - 0a01:17de
+
+ * - 79
+ - DSP Design TCVIDEO
+ -
+
+ * - 80
+ - Hauppauge WinTV PVR
+ - 0070:4500
+
+ * - 81
+ - IODATA GV-BCTV5/PCI
+ - 10fc:4070, 10fc:d018
+
+ * - 82
+ - Osprey 100/150 (878)
+ - 0070:ff00
+
+ * - 83
+ - Osprey 100/150 (848)
+ -
+
+ * - 84
+ - Osprey 101 (848)
+ -
+
+ * - 85
+ - Osprey 101/151
+ -
+
+ * - 86
+ - Osprey 101/151 w/ svid
+ -
+
+ * - 87
+ - Osprey 200/201/250/251
+ -
+
+ * - 88
+ - Osprey 200/250
+ - 0070:ff01
+
+ * - 89
+ - Osprey 210/220/230
+ -
+
+ * - 90
+ - Osprey 500
+ - 0070:ff02
+
+ * - 91
+ - Osprey 540
+ - 0070:ff04
+
+ * - 92
+ - Osprey 2000
+ - 0070:ff03
+
+ * - 93
+ - IDS Eagle
+ -
+
+ * - 94
+ - Pinnacle PCTV Sat
+ - 11bd:001c
+
+ * - 95
+ - Formac ProTV II (bt878)
+ -
+
+ * - 96
+ - MachTV
+ -
+
+ * - 97
+ - Euresys Picolo
+ -
+
+ * - 98
+ - ProVideo PV150
+ - aa00:1460, aa01:1461, aa02:1462, aa03:1463, aa04:1464, aa05:1465, aa06:1466, aa07:1467
+
+ * - 99
+ - AD-TVK503
+ -
+
+ * - 100
+ - Hercules Smart TV Stereo
+ -
+
+ * - 101
+ - Pace TV & Radio Card
+ -
+
+ * - 102
+ - IVC-200
+ - 0000:a155, 0001:a155, 0002:a155, 0003:a155, 0100:a155, 0101:a155, 0102:a155, 0103:a155, 0800:a155, 0801:a155, 0802:a155, 0803:a155
+
+ * - 103
+ - Grand X-Guard / Trust 814PCI
+ - 0304:0102
+
+ * - 104
+ - Nebula Electronics DigiTV
+ - 0071:0101
+
+ * - 105
+ - ProVideo PV143
+ - aa00:1430, aa00:1431, aa00:1432, aa00:1433, aa03:1433
+
+ * - 106
+ - PHYTEC VD-009-X1 VD-011 MiniDIN (bt878)
+ -
+
+ * - 107
+ - PHYTEC VD-009-X1 VD-011 Combi (bt878)
+ -
+
+ * - 108
+ - PHYTEC VD-009 MiniDIN (bt878)
+ -
+
+ * - 109
+ - PHYTEC VD-009 Combi (bt878)
+ -
+
+ * - 110
+ - IVC-100
+ - ff00:a132
+
+ * - 111
+ - IVC-120G
+ - ff00:a182, ff01:a182, ff02:a182, ff03:a182, ff04:a182, ff05:a182, ff06:a182, ff07:a182, ff08:a182, ff09:a182, ff0a:a182, ff0b:a182, ff0c:a182, ff0d:a182, ff0e:a182, ff0f:a182
+
+ * - 112
+ - pcHDTV HD-2000 TV
+ - 7063:2000
+
+ * - 113
+ - Twinhan DST + clones
+ - 11bd:0026, 1822:0001, 270f:fc00, 1822:0026
+
+ * - 114
+ - Winfast VC100
+ - 107d:6607
+
+ * - 115
+ - Teppro TEV-560/InterVision IV-560
+ -
+
+ * - 116
+ - SIMUS GVC1100
+ - aa6a:82b2
+
+ * - 117
+ - NGS NGSTV+
+ -
+
+ * - 118
+ - LMLBT4
+ -
+
+ * - 119
+ - Tekram M205 PRO
+ -
+
+ * - 120
+ - Conceptronic CONTVFMi
+ -
+
+ * - 121
+ - Euresys Picolo Tetra
+ - 1805:0105, 1805:0106, 1805:0107, 1805:0108
+
+ * - 122
+ - Spirit TV Tuner
+ -
+
+ * - 123
+ - AVerMedia AVerTV DVB-T 771
+ - 1461:0771
+
+ * - 124
+ - AverMedia AverTV DVB-T 761
+ - 1461:0761
+
+ * - 125
+ - MATRIX Vision Sigma-SQ
+ -
+
+ * - 126
+ - MATRIX Vision Sigma-SLC
+ -
+
+ * - 127
+ - APAC Viewcomp 878(AMAX)
+ -
+
+ * - 128
+ - DViCO FusionHDTV DVB-T Lite
+ - 18ac:db10, 18ac:db11
+
+ * - 129
+ - V-Gear MyVCD
+ -
+
+ * - 130
+ - Super TV Tuner
+ -
+
+ * - 131
+ - Tibet Systems 'Progress DVR' CS16
+ -
+
+ * - 132
+ - Kodicom 4400R (master)
+ -
+
+ * - 133
+ - Kodicom 4400R (slave)
+ -
+
+ * - 134
+ - Adlink RTV24
+ -
+
+ * - 135
+ - DViCO FusionHDTV 5 Lite
+ - 18ac:d500
+
+ * - 136
+ - Acorp Y878F
+ - 9511:1540
+
+ * - 137
+ - Conceptronic CTVFMi v2
+ - 036e:109e
+
+ * - 138
+ - Prolink Pixelview PV-BT878P+ (Rev.2E)
+ -
+
+ * - 139
+ - Prolink PixelView PlayTV MPEG2 PV-M4900
+ -
+
+ * - 140
+ - Osprey 440
+ - 0070:ff07
+
+ * - 141
+ - Asound Skyeye PCTV
+ -
+
+ * - 142
+ - Sabrent TV-FM (bttv version)
+ -
+
+ * - 143
+ - Hauppauge ImpactVCB (bt878)
+ - 0070:13eb
+
+ * - 144
+ - MagicTV
+ -
+
+ * - 145
+ - SSAI Security Video Interface
+ - 4149:5353
+
+ * - 146
+ - SSAI Ultrasound Video Interface
+ - 414a:5353
+
+ * - 147
+ - VoodooTV 200 (USA)
+ - 121a:3000
+
+ * - 148
+ - DViCO FusionHDTV 2
+ - dbc0:d200
+
+ * - 149
+ - Typhoon TV-Tuner PCI (50684)
+ -
+
+ * - 150
+ - Geovision GV-600
+ - 008a:763c
+
+ * - 151
+ - Kozumi KTV-01C
+ -
+
+ * - 152
+ - Encore ENL TV-FM-2
+ - 1000:1801
+
+ * - 153
+ - PHYTEC VD-012 (bt878)
+ -
+
+ * - 154
+ - PHYTEC VD-012-X1 (bt878)
+ -
+
+ * - 155
+ - PHYTEC VD-012-X2 (bt878)
+ -
+
+ * - 156
+ - IVCE-8784
+ - 0000:f050, 0001:f050, 0002:f050, 0003:f050
+
+ * - 157
+ - Geovision GV-800(S) (master)
+ - 800a:763d
+
+ * - 158
+ - Geovision GV-800(S) (slave)
+ - 800b:763d, 800c:763d, 800d:763d
+
+ * - 159
+ - ProVideo PV183
+ - 1830:1540, 1831:1540, 1832:1540, 1833:1540, 1834:1540, 1835:1540, 1836:1540, 1837:1540
+
+ * - 160
+ - Tongwei Video Technology TD-3116
+ - f200:3116
+
+ * - 161
+ - Aposonic W-DVR
+ - 0279:0228
+
+ * - 162
+ - Adlink MPG24
+ -
+
+ * - 163
+ - Bt848 Capture 14MHz
+ -
+
+ * - 164
+ - CyberVision CV06 (SV)
+ -
+
+ * - 165
+ - Kworld V-Stream Xpert TV PVR878
+ -
+
+ * - 166
+ - PCI-8604PW
+ -
diff --git a/Documentation/media/v4l-drivers/cx23885-cardlist.rst b/Documentation/media/v4l-drivers/cx23885-cardlist.rst
index fd20b50d2c1d..3129ef04ddd3 100644
--- a/Documentation/media/v4l-drivers/cx23885-cardlist.rst
+++ b/Documentation/media/v4l-drivers/cx23885-cardlist.rst
@@ -1,65 +1,245 @@
cx23885 cards list
==================
-=========== ==================================== ======================================================================================
-Card number Card name PCI IDs
-=========== ==================================== ======================================================================================
-0 UNKNOWN/GENERIC 0070:3400
-1 Hauppauge WinTV-HVR1800lp 0070:7600
-2 Hauppauge WinTV-HVR1800 0070:7800, 0070:7801, 0070:7809
-3 Hauppauge WinTV-HVR1250 0070:7911
-4 DViCO FusionHDTV5 Express 18ac:d500
-5 Hauppauge WinTV-HVR1500Q 0070:7790, 0070:7797
-6 Hauppauge WinTV-HVR1500 0070:7710, 0070:7717
-7 Hauppauge WinTV-HVR1200 0070:71d1, 0070:71d3
-8 Hauppauge WinTV-HVR1700 0070:8101
-9 Hauppauge WinTV-HVR1400 0070:8010
-10 DViCO FusionHDTV7 Dual Express 18ac:d618
-11 DViCO FusionHDTV DVB-T Dual Express 18ac:db78
-12 Leadtek Winfast PxDVR3200 H 107d:6681
-13 Compro VideoMate E650F 185b:e800
-14 TurboSight TBS 6920 6920:8888
-15 TeVii S470 d470:9022
-16 DVBWorld DVB-S2 2005 0001:2005
-17 NetUP Dual DVB-S2 CI 1b55:2a2c
-18 Hauppauge WinTV-HVR1270 0070:2211
-19 Hauppauge WinTV-HVR1275 0070:2215, 0070:221d, 0070:22f2
-20 Hauppauge WinTV-HVR1255 0070:2251, 0070:22f1
-21 Hauppauge WinTV-HVR1210 0070:2291, 0070:2295, 0070:2299, 0070:229d, 0070:22f0, 0070:22f3, 0070:22f4, 0070:22f5
-22 Mygica X8506 DMB-TH 14f1:8651
-23 Magic-Pro ProHDTV Extreme 2 14f1:8657
-24 Hauppauge WinTV-HVR1850 0070:8541
-25 Compro VideoMate E800 1858:e800
-26 Hauppauge WinTV-HVR1290 0070:8551
-27 Mygica X8558 PRO DMB-TH 14f1:8578
-28 LEADTEK WinFast PxTV1200 107d:6f22
-29 GoTView X5 3D Hybrid 5654:2390
-30 NetUP Dual DVB-T/C-CI RF 1b55:e2e4
-31 Leadtek Winfast PxDVR3200 H XC4000 107d:6f39
-32 MPX-885
-33 Mygica X8502/X8507 ISDB-T 14f1:8502
-34 TerraTec Cinergy T PCIe Dual 153b:117e
-35 TeVii S471 d471:9022
-36 Hauppauge WinTV-HVR1255 0070:2259
-37 Prof Revolution DVB-S2 8000 8000:3034
-38 Hauppauge WinTV-HVR4400/HVR5500 0070:c108, 0070:c138, 0070:c1f8
-39 AVerTV Hybrid Express Slim HC81R 1461:d939
-40 TurboSight TBS 6981 6981:8888
-41 TurboSight TBS 6980 6980:8888
-42 Leadtek Winfast PxPVR2200 107d:6f21
-43 Hauppauge ImpactVCB-e 0070:7133
-44 DViCO FusionHDTV DVB-T Dual Express2 18ac:db98
-45 DVBSky T9580 4254:9580
-46 DVBSky T980C 4254:980c
-47 DVBSky S950C 4254:950c
-48 Technotrend TT-budget CT2-4500 CI 13c2:3013
-49 DVBSky S950 4254:0950
-50 DVBSky S952 4254:0952
-51 DVBSky T982 4254:0982
-52 Hauppauge WinTV-HVR5525 0070:f038
-53 Hauppauge WinTV Starburst 0070:c12a
-54 ViewCast 260e 1576:0260
-55 ViewCast 460e 1576:0460
-56 Hauppauge WinTV-QuadHD-DVB 0070:6a28, 0070:6b28
-57 Hauppauge WinTV-QuadHD-ATSC 0070:6a18, 0070:6b18
-=========== ==================================== ======================================================================================
+.. tabularcolumns:: |p{1.4cm}|p{11.1cm}|p{4.2cm}|
+
+.. flat-table::
+ :header-rows: 1
+ :widths: 2 19 18
+ :stub-columns: 0
+
+ * - Card number
+ - Card name
+ - PCI IDs
+
+ * - 0
+ - UNKNOWN/GENERIC
+ - 0070:3400
+
+ * - 1
+ - Hauppauge WinTV-HVR1800lp
+ - 0070:7600
+
+ * - 2
+ - Hauppauge WinTV-HVR1800
+ - 0070:7800, 0070:7801, 0070:7809
+
+ * - 3
+ - Hauppauge WinTV-HVR1250
+ - 0070:7911
+
+ * - 4
+ - DViCO FusionHDTV5 Express
+ - 18ac:d500
+
+ * - 5
+ - Hauppauge WinTV-HVR1500Q
+ - 0070:7790, 0070:7797
+
+ * - 6
+ - Hauppauge WinTV-HVR1500
+ - 0070:7710, 0070:7717
+
+ * - 7
+ - Hauppauge WinTV-HVR1200
+ - 0070:71d1, 0070:71d3
+
+ * - 8
+ - Hauppauge WinTV-HVR1700
+ - 0070:8101
+
+ * - 9
+ - Hauppauge WinTV-HVR1400
+ - 0070:8010
+
+ * - 10
+ - DViCO FusionHDTV7 Dual Express
+ - 18ac:d618
+
+ * - 11
+ - DViCO FusionHDTV DVB-T Dual Express
+ - 18ac:db78
+
+ * - 12
+ - Leadtek Winfast PxDVR3200 H
+ - 107d:6681
+
+ * - 13
+ - Compro VideoMate E650F
+ - 185b:e800
+
+ * - 14
+ - TurboSight TBS 6920
+ - 6920:8888
+
+ * - 15
+ - TeVii S470
+ - d470:9022
+
+ * - 16
+ - DVBWorld DVB-S2 2005
+ - 0001:2005
+
+ * - 17
+ - NetUP Dual DVB-S2 CI
+ - 1b55:2a2c
+
+ * - 18
+ - Hauppauge WinTV-HVR1270
+ - 0070:2211
+
+ * - 19
+ - Hauppauge WinTV-HVR1275
+ - 0070:2215, 0070:221d, 0070:22f2
+
+ * - 20
+ - Hauppauge WinTV-HVR1255
+ - 0070:2251, 0070:22f1
+
+ * - 21
+ - Hauppauge WinTV-HVR1210
+ - 0070:2291, 0070:2295, 0070:2299, 0070:229d, 0070:22f0, 0070:22f3, 0070:22f4, 0070:22f5
+
+ * - 22
+ - Mygica X8506 DMB-TH
+ - 14f1:8651
+
+ * - 23
+ - Magic-Pro ProHDTV Extreme 2
+ - 14f1:8657
+
+ * - 24
+ - Hauppauge WinTV-HVR1850
+ - 0070:8541
+
+ * - 25
+ - Compro VideoMate E800
+ - 1858:e800
+
+ * - 26
+ - Hauppauge WinTV-HVR1290
+ - 0070:8551
+
+ * - 27
+ - Mygica X8558 PRO DMB-TH
+ - 14f1:8578
+
+ * - 28
+ - LEADTEK WinFast PxTV1200
+ - 107d:6f22
+
+ * - 29
+ - GoTView X5 3D Hybrid
+ - 5654:2390
+
+ * - 30
+ - NetUP Dual DVB-T/C-CI RF
+ - 1b55:e2e4
+
+ * - 31
+ - Leadtek Winfast PxDVR3200 H XC4000
+ - 107d:6f39
+
+ * - 32
+ - MPX-885
+ -
+
+ * - 33
+ - Mygica X8502/X8507 ISDB-T
+ - 14f1:8502
+
+ * - 34
+ - TerraTec Cinergy T PCIe Dual
+ - 153b:117e
+
+ * - 35
+ - TeVii S471
+ - d471:9022
+
+ * - 36
+ - Hauppauge WinTV-HVR1255
+ - 0070:2259
+
+ * - 37
+ - Prof Revolution DVB-S2 8000
+ - 8000:3034
+
+ * - 38
+ - Hauppauge WinTV-HVR4400/HVR5500
+ - 0070:c108, 0070:c138, 0070:c1f8
+
+ * - 39
+ - AVerTV Hybrid Express Slim HC81R
+ - 1461:d939
+
+ * - 40
+ - TurboSight TBS 6981
+ - 6981:8888
+
+ * - 41
+ - TurboSight TBS 6980
+ - 6980:8888
+
+ * - 42
+ - Leadtek Winfast PxPVR2200
+ - 107d:6f21
+
+ * - 43
+ - Hauppauge ImpactVCB-e
+ - 0070:7133
+
+ * - 44
+ - DViCO FusionHDTV DVB-T Dual Express2
+ - 18ac:db98
+
+ * - 45
+ - DVBSky T9580
+ - 4254:9580
+
+ * - 46
+ - DVBSky T980C
+ - 4254:980c
+
+ * - 47
+ - DVBSky S950C
+ - 4254:950c
+
+ * - 48
+ - Technotrend TT-budget CT2-4500 CI
+ - 13c2:3013
+
+ * - 49
+ - DVBSky S950
+ - 4254:0950
+
+ * - 50
+ - DVBSky S952
+ - 4254:0952
+
+ * - 51
+ - DVBSky T982
+ - 4254:0982
+
+ * - 52
+ - Hauppauge WinTV-HVR5525
+ - 0070:f038
+
+ * - 53
+ - Hauppauge WinTV Starburst
+ - 0070:c12a
+
+ * - 54
+ - ViewCast 260e
+ - 1576:0260
+
+ * - 55
+ - ViewCast 460e
+ - 1576:0460
+
+ * - 56
+ - Hauppauge WinTV-QuadHD-DVB
+ - 0070:6a28, 0070:6b28
+
+ * - 57
+ - Hauppauge WinTV-QuadHD-ATSC
+ - 0070:6a18, 0070:6b18
diff --git a/Documentation/media/v4l-drivers/cx88-cardlist.rst b/Documentation/media/v4l-drivers/cx88-cardlist.rst
index 8cc1cea17035..21648b8c2e83 100644
--- a/Documentation/media/v4l-drivers/cx88-cardlist.rst
+++ b/Documentation/media/v4l-drivers/cx88-cardlist.rst
@@ -1,98 +1,377 @@
CX88 cards list
===============
-=========== =================================================== ======================================================================================
-Card number Card name PCI IDs
-=========== =================================================== ======================================================================================
-0 UNKNOWN/GENERIC
-1 Hauppauge WinTV 34xxx models 0070:3400, 0070:3401
-2 GDI Black Gold 14c7:0106, 14c7:0107
-3 PixelView 1554:4811
-4 ATI TV Wonder Pro 1002:00f8, 1002:00f9
-5 Leadtek Winfast 2000XP Expert 107d:6611, 107d:6613
-6 AverTV Studio 303 (M126) 1461:000b
-7 MSI TV-@nywhere Master 1462:8606
-8 Leadtek Winfast DV2000 107d:6620, 107d:6621
-9 Leadtek PVR 2000 107d:663b, 107d:663c, 107d:6632, 107d:6630, 107d:6638, 107d:6631, 107d:6637, 107d:663d
-10 IODATA GV-VCP3/PCI 10fc:d003
-11 Prolink PlayTV PVR
-12 ASUS PVR-416 1043:4823, 1461:c111
-13 MSI TV-@nywhere
-14 KWorld/VStream XPert DVB-T 17de:08a6
-15 DViCO FusionHDTV DVB-T1 18ac:db00
-16 KWorld LTV883RF
-17 DViCO FusionHDTV 3 Gold-Q 18ac:d810, 18ac:d800
-18 Hauppauge Nova-T DVB-T 0070:9002, 0070:9001, 0070:9000
-19 Conexant DVB-T reference design 14f1:0187
-20 Provideo PV259 1540:2580
-21 DViCO FusionHDTV DVB-T Plus 18ac:db10, 18ac:db11
-22 pcHDTV HD3000 HDTV 7063:3000
-23 digitalnow DNTV Live! DVB-T 17de:a8a6
-24 Hauppauge WinTV 28xxx (Roslyn) models 0070:2801
-25 Digital-Logic MICROSPACE Entertainment Center (MEC) 14f1:0342
-26 IODATA GV/BCTV7E 10fc:d035
-27 PixelView PlayTV Ultra Pro (Stereo)
-28 DViCO FusionHDTV 3 Gold-T 18ac:d820
-29 ADS Tech Instant TV DVB-T PCI 1421:0334
-30 TerraTec Cinergy 1400 DVB-T 153b:1166
-31 DViCO FusionHDTV 5 Gold 18ac:d500
-32 AverMedia UltraTV Media Center PCI 550 1461:8011
-33 Kworld V-Stream Xpert DVD
-34 ATI HDTV Wonder 1002:a101
-35 WinFast DTV1000-T 107d:665f
-36 AVerTV 303 (M126) 1461:000a
-37 Hauppauge Nova-S-Plus DVB-S 0070:9201, 0070:9202
-38 Hauppauge Nova-SE2 DVB-S 0070:9200
-39 KWorld DVB-S 100 17de:08b2, 1421:0341
-40 Hauppauge WinTV-HVR1100 DVB-T/Hybrid 0070:9400, 0070:9402
-41 Hauppauge WinTV-HVR1100 DVB-T/Hybrid (Low Profile) 0070:9800, 0070:9802
-42 digitalnow DNTV Live! DVB-T Pro 1822:0025, 1822:0019
-43 KWorld/VStream XPert DVB-T with cx22702 17de:08a1, 12ab:2300
-44 DViCO FusionHDTV DVB-T Dual Digital 18ac:db50, 18ac:db54
-45 KWorld HardwareMpegTV XPert 17de:0840, 1421:0305
-46 DViCO FusionHDTV DVB-T Hybrid 18ac:db40, 18ac:db44
-47 pcHDTV HD5500 HDTV 7063:5500
-48 Kworld MCE 200 Deluxe 17de:0841
-49 PixelView PlayTV P7000 1554:4813
-50 NPG Tech Real TV FM Top 10 14f1:0842
-51 WinFast DTV2000 H 107d:665e
-52 Geniatech DVB-S 14f1:0084
-53 Hauppauge WinTV-HVR3000 TriMode Analog/DVB-S/DVB-T 0070:1404, 0070:1400, 0070:1401, 0070:1402
-54 Norwood Micro TV Tuner
-55 Shenzhen Tungsten Ages Tech TE-DTV-250 / Swann OEM c180:c980
-56 Hauppauge WinTV-HVR1300 DVB-T/Hybrid MPEG Encoder 0070:9600, 0070:9601, 0070:9602
-57 ADS Tech Instant Video PCI 1421:0390
-58 Pinnacle PCTV HD 800i 11bd:0051
-59 DViCO FusionHDTV 5 PCI nano 18ac:d530
-60 Pinnacle Hybrid PCTV 12ab:1788
-61 Leadtek TV2000 XP Global 107d:6f18, 107d:6618, 107d:6619
-62 PowerColor RA330 14f1:ea3d
-63 Geniatech X8000-MT DVBT 14f1:8852
-64 DViCO FusionHDTV DVB-T PRO 18ac:db30
-65 DViCO FusionHDTV 7 Gold 18ac:d610
-66 Prolink Pixelview MPEG 8000GT 1554:4935
-67 Kworld PlusTV HD PCI 120 (ATSC 120) 17de:08c1
-68 Hauppauge WinTV-HVR4000 DVB-S/S2/T/Hybrid 0070:6900, 0070:6904, 0070:6902
-69 Hauppauge WinTV-HVR4000(Lite) DVB-S/S2 0070:6905, 0070:6906
-70 TeVii S460 DVB-S/S2 d460:9022
-71 Omicom SS4 DVB-S/S2 PCI A044:2011
-72 TBS 8920 DVB-S/S2 8920:8888
-73 TeVii S420 DVB-S d420:9022
-74 Prolink Pixelview Global Extreme 1554:4976
-75 PROF 7300 DVB-S/S2 B033:3033
-76 SATTRADE ST4200 DVB-S/S2 b200:4200
-77 TBS 8910 DVB-S 8910:8888
-78 Prof 6200 DVB-S b022:3022
-79 Terratec Cinergy HT PCI MKII 153b:1177
-80 Hauppauge WinTV-IR Only 0070:9290
-81 Leadtek WinFast DTV1800 Hybrid 107d:6654
-82 WinFast DTV2000 H rev. J 107d:6f2b
-83 Prof 7301 DVB-S/S2 b034:3034
-84 Samsung SMT 7020 DVB-S 18ac:dc00, 18ac:dccd
-85 Twinhan VP-1027 DVB-S 1822:0023
-86 TeVii S464 DVB-S/S2 d464:9022
-87 Leadtek WinFast DTV2000 H PLUS 107d:6f42
-88 Leadtek WinFast DTV1800 H (XC4000) 107d:6f38
-89 Leadtek TV2000 XP Global (SC4100) 107d:6f36
-90 Leadtek TV2000 XP Global (XC4100) 107d:6f43
-=========== =================================================== ======================================================================================
+.. tabularcolumns:: |p{1.4cm}|p{11.1cm}|p{4.2cm}|
+
+.. flat-table::
+ :header-rows: 1
+ :widths: 2 19 18
+ :stub-columns: 0
+
+ * - Card number
+ - Card name
+ - PCI IDs
+
+ * - 0
+ - UNKNOWN/GENERIC
+ -
+
+ * - 1
+ - Hauppauge WinTV 34xxx models
+ - 0070:3400, 0070:3401
+
+ * - 2
+ - GDI Black Gold
+ - 14c7:0106, 14c7:0107
+
+ * - 3
+ - PixelView
+ - 1554:4811
+
+ * - 4
+ - ATI TV Wonder Pro
+ - 1002:00f8, 1002:00f9
+
+ * - 5
+ - Leadtek Winfast 2000XP Expert
+ - 107d:6611, 107d:6613
+
+ * - 6
+ - AverTV Studio 303 (M126)
+ - 1461:000b
+
+ * - 7
+ - MSI TV-@nywhere Master
+ - 1462:8606
+
+ * - 8
+ - Leadtek Winfast DV2000
+ - 107d:6620, 107d:6621
+
+ * - 9
+ - Leadtek PVR 2000
+ - 107d:663b, 107d:663c, 107d:6632, 107d:6630, 107d:6638, 107d:6631, 107d:6637, 107d:663d
+
+ * - 10
+ - IODATA GV-VCP3/PCI
+ - 10fc:d003
+
+ * - 11
+ - Prolink PlayTV PVR
+ -
+
+ * - 12
+ - ASUS PVR-416
+ - 1043:4823, 1461:c111
+
+ * - 13
+ - MSI TV-@nywhere
+ -
+
+ * - 14
+ - KWorld/VStream XPert DVB-T
+ - 17de:08a6
+
+ * - 15
+ - DViCO FusionHDTV DVB-T1
+ - 18ac:db00
+
+ * - 16
+ - KWorld LTV883RF
+ -
+
+ * - 17
+ - DViCO FusionHDTV 3 Gold-Q
+ - 18ac:d810, 18ac:d800
+
+ * - 18
+ - Hauppauge Nova-T DVB-T
+ - 0070:9002, 0070:9001, 0070:9000
+
+ * - 19
+ - Conexant DVB-T reference design
+ - 14f1:0187
+
+ * - 20
+ - Provideo PV259
+ - 1540:2580
+
+ * - 21
+ - DViCO FusionHDTV DVB-T Plus
+ - 18ac:db10, 18ac:db11
+
+ * - 22
+ - pcHDTV HD3000 HDTV
+ - 7063:3000
+
+ * - 23
+ - digitalnow DNTV Live! DVB-T
+ - 17de:a8a6
+
+ * - 24
+ - Hauppauge WinTV 28xxx (Roslyn) models
+ - 0070:2801
+
+ * - 25
+ - Digital-Logic MICROSPACE Entertainment Center (MEC)
+ - 14f1:0342
+
+ * - 26
+ - IODATA GV/BCTV7E
+ - 10fc:d035
+
+ * - 27
+ - PixelView PlayTV Ultra Pro (Stereo)
+ -
+
+ * - 28
+ - DViCO FusionHDTV 3 Gold-T
+ - 18ac:d820
+
+ * - 29
+ - ADS Tech Instant TV DVB-T PCI
+ - 1421:0334
+
+ * - 30
+ - TerraTec Cinergy 1400 DVB-T
+ - 153b:1166
+
+ * - 31
+ - DViCO FusionHDTV 5 Gold
+ - 18ac:d500
+
+ * - 32
+ - AverMedia UltraTV Media Center PCI 550
+ - 1461:8011
+
+ * - 33
+ - Kworld V-Stream Xpert DVD
+ -
+
+ * - 34
+ - ATI HDTV Wonder
+ - 1002:a101
+
+ * - 35
+ - WinFast DTV1000-T
+ - 107d:665f
+
+ * - 36
+ - AVerTV 303 (M126)
+ - 1461:000a
+
+ * - 37
+ - Hauppauge Nova-S-Plus DVB-S
+ - 0070:9201, 0070:9202
+
+ * - 38
+ - Hauppauge Nova-SE2 DVB-S
+ - 0070:9200
+
+ * - 39
+ - KWorld DVB-S 100
+ - 17de:08b2, 1421:0341
+
+ * - 40
+ - Hauppauge WinTV-HVR1100 DVB-T/Hybrid
+ - 0070:9400, 0070:9402
+
+ * - 41
+ - Hauppauge WinTV-HVR1100 DVB-T/Hybrid (Low Profile)
+ - 0070:9800, 0070:9802
+
+ * - 42
+ - digitalnow DNTV Live! DVB-T Pro
+ - 1822:0025, 1822:0019
+
+ * - 43
+ - KWorld/VStream XPert DVB-T with cx22702
+ - 17de:08a1, 12ab:2300
+
+ * - 44
+ - DViCO FusionHDTV DVB-T Dual Digital
+ - 18ac:db50, 18ac:db54
+
+ * - 45
+ - KWorld HardwareMpegTV XPert
+ - 17de:0840, 1421:0305
+
+ * - 46
+ - DViCO FusionHDTV DVB-T Hybrid
+ - 18ac:db40, 18ac:db44
+
+ * - 47
+ - pcHDTV HD5500 HDTV
+ - 7063:5500
+
+ * - 48
+ - Kworld MCE 200 Deluxe
+ - 17de:0841
+
+ * - 49
+ - PixelView PlayTV P7000
+ - 1554:4813
+
+ * - 50
+ - NPG Tech Real TV FM Top 10
+ - 14f1:0842
+
+ * - 51
+ - WinFast DTV2000 H
+ - 107d:665e
+
+ * - 52
+ - Geniatech DVB-S
+ - 14f1:0084
+
+ * - 53
+ - Hauppauge WinTV-HVR3000 TriMode Analog/DVB-S/DVB-T
+ - 0070:1404, 0070:1400, 0070:1401, 0070:1402
+
+ * - 54
+ - Norwood Micro TV Tuner
+ -
+
+ * - 55
+ - Shenzhen Tungsten Ages Tech TE-DTV-250 / Swann OEM
+ - c180:c980
+
+ * - 56
+ - Hauppauge WinTV-HVR1300 DVB-T/Hybrid MPEG Encoder
+ - 0070:9600, 0070:9601, 0070:9602
+
+ * - 57
+ - ADS Tech Instant Video PCI
+ - 1421:0390
+
+ * - 58
+ - Pinnacle PCTV HD 800i
+ - 11bd:0051
+
+ * - 59
+ - DViCO FusionHDTV 5 PCI nano
+ - 18ac:d530
+
+ * - 60
+ - Pinnacle Hybrid PCTV
+ - 12ab:1788
+
+ * - 61
+ - Leadtek TV2000 XP Global
+ - 107d:6f18, 107d:6618, 107d:6619
+
+ * - 62
+ - PowerColor RA330
+ - 14f1:ea3d
+
+ * - 63
+ - Geniatech X8000-MT DVBT
+ - 14f1:8852
+
+ * - 64
+ - DViCO FusionHDTV DVB-T PRO
+ - 18ac:db30
+
+ * - 65
+ - DViCO FusionHDTV 7 Gold
+ - 18ac:d610
+
+ * - 66
+ - Prolink Pixelview MPEG 8000GT
+ - 1554:4935
+
+ * - 67
+ - Kworld PlusTV HD PCI 120 (ATSC 120)
+ - 17de:08c1
+
+ * - 68
+ - Hauppauge WinTV-HVR4000 DVB-S/S2/T/Hybrid
+ - 0070:6900, 0070:6904, 0070:6902
+
+ * - 69
+ - Hauppauge WinTV-HVR4000(Lite) DVB-S/S2
+ - 0070:6905, 0070:6906
+
+ * - 70
+ - TeVii S460 DVB-S/S2
+ - d460:9022
+
+ * - 71
+ - Omicom SS4 DVB-S/S2 PCI
+ - A044:2011
+
+ * - 72
+ - TBS 8920 DVB-S/S2
+ - 8920:8888
+
+ * - 73
+ - TeVii S420 DVB-S
+ - d420:9022
+
+ * - 74
+ - Prolink Pixelview Global Extreme
+ - 1554:4976
+
+ * - 75
+ - PROF 7300 DVB-S/S2
+ - B033:3033
+
+ * - 76
+ - SATTRADE ST4200 DVB-S/S2
+ - b200:4200
+
+ * - 77
+ - TBS 8910 DVB-S
+ - 8910:8888
+
+ * - 78
+ - Prof 6200 DVB-S
+ - b022:3022
+
+ * - 79
+ - Terratec Cinergy HT PCI MKII
+ - 153b:1177
+
+ * - 80
+ - Hauppauge WinTV-IR Only
+ - 0070:9290
+
+ * - 81
+ - Leadtek WinFast DTV1800 Hybrid
+ - 107d:6654
+
+ * - 82
+ - WinFast DTV2000 H rev. J
+ - 107d:6f2b
+
+ * - 83
+ - Prof 7301 DVB-S/S2
+ - b034:3034
+
+ * - 84
+ - Samsung SMT 7020 DVB-S
+ - 18ac:dc00, 18ac:dccd
+
+ * - 85
+ - Twinhan VP-1027 DVB-S
+ - 1822:0023
+
+ * - 86
+ - TeVii S464 DVB-S/S2
+ - d464:9022
+
+ * - 87
+ - Leadtek WinFast DTV2000 H PLUS
+ - 107d:6f42
+
+ * - 88
+ - Leadtek WinFast DTV1800 H (XC4000)
+ - 107d:6f38
+
+ * - 89
+ - Leadtek TV2000 XP Global (SC4100)
+ - 107d:6f36
+
+ * - 90
+ - Leadtek TV2000 XP Global (XC4100)
+ - 107d:6f43
diff --git a/Documentation/media/v4l-drivers/em28xx-cardlist.rst b/Documentation/media/v4l-drivers/em28xx-cardlist.rst
index 76b1d301754c..ec938c08f43d 100644
--- a/Documentation/media/v4l-drivers/em28xx-cardlist.rst
+++ b/Documentation/media/v4l-drivers/em28xx-cardlist.rst
@@ -1,107 +1,422 @@
EM28xx cards list
=================
-=========== ==================================================================== ================ ==================================================================================================================================
-Card number Card name Empia Chip USB IDs
-=========== ==================================================================== ================ ==================================================================================================================================
-0 Unknown EM2800 video grabber em2800 eb1a:2800
-1 Unknown EM2750/28xx video grabber em2820 or em2840 eb1a:2710, eb1a:2820, eb1a:2821, eb1a:2860, eb1a:2861, eb1a:2862, eb1a:2863, eb1a:2870, eb1a:2881, eb1a:2883, eb1a:2868, eb1a:2875
-2 Terratec Cinergy 250 USB em2820 or em2840 0ccd:0036
-3 Pinnacle PCTV USB 2 em2820 or em2840 2304:0208
-4 Hauppauge WinTV USB 2 em2820 or em2840 2040:4200, 2040:4201
-5 MSI VOX USB 2.0 em2820 or em2840
-6 Terratec Cinergy 200 USB em2800
-7 Leadtek Winfast USB II em2800 0413:6023
-8 Kworld USB2800 em2800
-9 Pinnacle Dazzle DVC 90/100/101/107 / Kaiser Baas Video to DVD maker em2820 or em2840 1b80:e302, 1b80:e304, 2304:0207, 2304:021a, 093b:a003
-10 Hauppauge WinTV HVR 900 em2880 2040:6500
-11 Terratec Hybrid XS em2880
-12 Kworld PVR TV 2800 RF em2820 or em2840
-13 Terratec Prodigy XS em2880
-14 SIIG AVTuner-PVR / Pixelview Prolink PlayTV USB 2.0 em2820 or em2840
-15 V-Gear PocketTV em2800
-16 Hauppauge WinTV HVR 950 em2883 2040:6513, 2040:6517, 2040:651b
-17 Pinnacle PCTV HD Pro Stick em2880 2304:0227
-18 Hauppauge WinTV HVR 900 (R2) em2880 2040:6502
-19 EM2860/SAA711X Reference Design em2860
-20 AMD ATI TV Wonder HD 600 em2880 0438:b002
-21 eMPIA Technology, Inc. GrabBeeX+ Video Encoder em2800 eb1a:2801
-22 EM2710/EM2750/EM2751 webcam grabber em2750 eb1a:2750, eb1a:2751
-23 Huaqi DLCW-130 em2750
-24 D-Link DUB-T210 TV Tuner em2820 or em2840 2001:f112
-25 Gadmei UTV310 em2820 or em2840
-26 Hercules Smart TV USB 2.0 em2820 or em2840
-27 Pinnacle PCTV USB 2 (Philips FM1216ME) em2820 or em2840
-28 Leadtek Winfast USB II Deluxe em2820 or em2840
-29 EM2860/TVP5150 Reference Design em2860
-30 Videology 20K14XUSB USB2.0 em2820 or em2840
-31 Usbgear VD204v9 em2821
-32 Supercomp USB 2.0 TV em2821
-33 Elgato Video Capture em2860 0fd9:0033
-34 Terratec Cinergy A Hybrid XS em2860 0ccd:004f
-35 Typhoon DVD Maker em2860
-36 NetGMBH Cam em2860
-37 Gadmei UTV330 em2860 eb1a:50a6
-38 Yakumo MovieMixer em2861
-39 KWorld PVRTV 300U em2861 eb1a:e300
-40 Plextor ConvertX PX-TV100U em2861 093b:a005
-41 Kworld 350 U DVB-T em2870 eb1a:e350
-42 Kworld 355 U DVB-T em2870 eb1a:e355, eb1a:e357, eb1a:e359
-43 Terratec Cinergy T XS em2870
-44 Terratec Cinergy T XS (MT2060) em2870 0ccd:0043
-45 Pinnacle PCTV DVB-T em2870
-46 Compro, VideoMate U3 em2870 185b:2870
-47 KWorld DVB-T 305U em2880 eb1a:e305
-48 KWorld DVB-T 310U em2880
-49 MSI DigiVox A/D em2880 eb1a:e310
-50 MSI DigiVox A/D II em2880 eb1a:e320
-51 Terratec Hybrid XS Secam em2880 0ccd:004c
-52 DNT DA2 Hybrid em2881
-53 Pinnacle Hybrid Pro em2881
-54 Kworld VS-DVB-T 323UR em2882 eb1a:e323
-55 Terratec Cinnergy Hybrid T USB XS (em2882) em2882 0ccd:005e, 0ccd:0042
-56 Pinnacle Hybrid Pro (330e) em2882 2304:0226
-57 Kworld PlusTV HD Hybrid 330 em2883 eb1a:a316
-58 Compro VideoMate ForYou/Stereo em2820 or em2840 185b:2041
-59 Pinnacle PCTV HD Mini em2874 2304:023f
-60 Hauppauge WinTV HVR 850 em2883 2040:651f
-61 Pixelview PlayTV Box 4 USB 2.0 em2820 or em2840
-62 Gadmei TVR200 em2820 or em2840
-63 Kaiomy TVnPC U2 em2860 eb1a:e303
-64 Easy Cap Capture DC-60 em2860 1b80:e309
-65 IO-DATA GV-MVP/SZ em2820 or em2840 04bb:0515
-66 Empire dual TV em2880
-67 Terratec Grabby em2860 0ccd:0096, 0ccd:10AF
-68 Terratec AV350 em2860 0ccd:0084
-69 KWorld ATSC 315U HDTV TV Box em2882 eb1a:a313
-70 Evga inDtube em2882
-71 Silvercrest Webcam 1.3mpix em2820 or em2840
-72 Gadmei UTV330+ em2861
-73 Reddo DVB-C USB TV Box em2870
-74 Actionmaster/LinXcel/Digitus VC211A em2800
-75 Dikom DK300 em2882
-76 KWorld PlusTV 340U or UB435-Q (ATSC) em2870 1b80:a340
-77 EM2874 Leadership ISDBT em2874
-78 PCTV nanoStick T2 290e em28174 2013:024f
-79 Terratec Cinergy H5 em2884 eb1a:2885, 0ccd:10a2, 0ccd:10ad, 0ccd:10b6
-80 PCTV DVB-S2 Stick (460e) em28174 2013:024c
-81 Hauppauge WinTV HVR 930C em2884 2040:1605
-82 Terratec Cinergy HTC Stick em2884 0ccd:00b2
-83 Honestech Vidbox NW03 em2860 eb1a:5006
-84 MaxMedia UB425-TC em2874 1b80:e425
-85 PCTV QuatroStick (510e) em2884 2304:0242
-86 PCTV QuatroStick nano (520e) em2884 2013:0251
-87 Terratec Cinergy HTC USB XS em2884 0ccd:008e, 0ccd:00ac
-88 C3 Tech Digital Duo HDTV/SDTV USB em2884 1b80:e755
-89 Delock 61959 em2874 1b80:e1cc
-90 KWorld USB ATSC TV Stick UB435-Q V2 em2874 1b80:e346
-91 SpeedLink Vicious And Devine Laplace webcam em2765 1ae7:9003, 1ae7:9004
-92 PCTV DVB-S2 Stick (461e) em28178 2013:0258
-93 KWorld USB ATSC TV Stick UB435-Q V3 em2874 1b80:e34c
-94 PCTV tripleStick (292e) em28178 2013:025f, 2040:0264
-95 Leadtek VC100 em2861 0413:6f07
-96 Terratec Cinergy T2 Stick HD em28178 eb1a:8179
-97 Elgato EyeTV Hybrid 2008 INT em2884 0fd9:0018
-98 PLEX PX-BCUD em28178 3275:0085
-99 Hauppauge WinTV-dualHD DVB em28174 2040:0265
-=========== ==================================================================== ================ ==================================================================================================================================
+.. tabularcolumns:: |p{1.4cm}|p{10.0cm}|p{1.9cm}|p{4.2cm}|
+
+.. flat-table::
+ :header-rows: 1
+ :widths: 2 12 3 16
+ :stub-columns: 0
+
+ * - Card number
+ - Card name
+ - Empia Chip
+ - USB IDs
+ * - 0
+ - Unknown EM2800 video grabber
+ - em2800
+ - eb1a:2800
+ * - 1
+ - Unknown EM2750/28xx video grabber
+ - em2820 or em2840
+ - eb1a:2710, eb1a:2820, eb1a:2821, eb1a:2860, eb1a:2861, eb1a:2862, eb1a:2863, eb1a:2870, eb1a:2881, eb1a:2883, eb1a:2868, eb1a:2875
+ * - 2
+ - Terratec Cinergy 250 USB
+ - em2820 or em2840
+ - 0ccd:0036
+ * - 3
+ - Pinnacle PCTV USB 2
+ - em2820 or em2840
+ - 2304:0208
+ * - 4
+ - Hauppauge WinTV USB 2
+ - em2820 or em2840
+ - 2040:4200, 2040:4201
+ * - 5
+ - MSI VOX USB 2.0
+ - em2820 or em2840
+ -
+ * - 6
+ - Terratec Cinergy 200 USB
+ - em2800
+ -
+ * - 7
+ - Leadtek Winfast USB II
+ - em2800
+ - 0413:6023
+ * - 8
+ - Kworld USB2800
+ - em2800
+ -
+ * - 9
+ - Pinnacle Dazzle DVC 90/100/101/107 / Kaiser Baas Video to DVD maker / Kworld DVD Maker 2 / Plextor ConvertX PX-AV100U
+ - em2820 or em2840
+ - 1b80:e302, 1b80:e304, 2304:0207, 2304:021a, 093b:a003
+ * - 10
+ - Hauppauge WinTV HVR 900
+ - em2880
+ - 2040:6500
+ * - 11
+ - Terratec Hybrid XS
+ - em2880
+ -
+ * - 12
+ - Kworld PVR TV 2800 RF
+ - em2820 or em2840
+ -
+ * - 13
+ - Terratec Prodigy XS
+ - em2880
+ -
+ * - 14
+ - SIIG AVTuner-PVR / Pixelview Prolink PlayTV USB 2.0
+ - em2820 or em2840
+ -
+ * - 15
+ - V-Gear PocketTV
+ - em2800
+ -
+ * - 16
+ - Hauppauge WinTV HVR 950
+ - em2883
+ - 2040:6513, 2040:6517, 2040:651b
+ * - 17
+ - Pinnacle PCTV HD Pro Stick
+ - em2880
+ - 2304:0227
+ * - 18
+ - Hauppauge WinTV HVR 900 (R2)
+ - em2880
+ - 2040:6502
+ * - 19
+ - EM2860/SAA711X Reference Design
+ - em2860
+ -
+ * - 20
+ - AMD ATI TV Wonder HD 600
+ - em2880
+ - 0438:b002
+ * - 21
+ - eMPIA Technology, Inc. GrabBeeX+ Video Encoder
+ - em2800
+ - eb1a:2801
+ * - 22
+ - EM2710/EM2750/EM2751 webcam grabber
+ - em2750
+ - eb1a:2750, eb1a:2751
+ * - 23
+ - Huaqi DLCW-130
+ - em2750
+ -
+ * - 24
+ - D-Link DUB-T210 TV Tuner
+ - em2820 or em2840
+ - 2001:f112
+ * - 25
+ - Gadmei UTV310
+ - em2820 or em2840
+ -
+ * - 26
+ - Hercules Smart TV USB 2.0
+ - em2820 or em2840
+ -
+ * - 27
+ - Pinnacle PCTV USB 2 (Philips FM1216ME)
+ - em2820 or em2840
+ -
+ * - 28
+ - Leadtek Winfast USB II Deluxe
+ - em2820 or em2840
+ -
+ * - 29
+ - EM2860/TVP5150 Reference Design
+ - em2860
+ - eb1a:5051
+ * - 30
+ - Videology 20K14XUSB USB2.0
+ - em2820 or em2840
+ -
+ * - 31
+ - Usbgear VD204v9
+ - em2821
+ -
+ * - 32
+ - Supercomp USB 2.0 TV
+ - em2821
+ -
+ * - 33
+ - Elgato Video Capture
+ - em2860
+ - 0fd9:0033
+ * - 34
+ - Terratec Cinergy A Hybrid XS
+ - em2860
+ - 0ccd:004f
+ * - 35
+ - Typhoon DVD Maker
+ - em2860
+ -
+ * - 36
+ - NetGMBH Cam
+ - em2860
+ -
+ * - 37
+ - Gadmei UTV330
+ - em2860
+ - eb1a:50a6
+ * - 38
+ - Yakumo MovieMixer
+ - em2861
+ -
+ * - 39
+ - KWorld PVRTV 300U
+ - em2861
+ - eb1a:e300
+ * - 40
+ - Plextor ConvertX PX-TV100U
+ - em2861
+ - 093b:a005
+ * - 41
+ - Kworld 350 U DVB-T
+ - em2870
+ - eb1a:e350
+ * - 42
+ - Kworld 355 U DVB-T
+ - em2870
+ - eb1a:e355, eb1a:e357, eb1a:e359
+ * - 43
+ - Terratec Cinergy T XS
+ - em2870
+ -
+ * - 44
+ - Terratec Cinergy T XS (MT2060)
+ - em2870
+ - 0ccd:0043
+ * - 45
+ - Pinnacle PCTV DVB-T
+ - em2870
+ -
+ * - 46
+ - Compro, VideoMate U3
+ - em2870
+ - 185b:2870
+ * - 47
+ - KWorld DVB-T 305U
+ - em2880
+ - eb1a:e305
+ * - 48
+ - KWorld DVB-T 310U
+ - em2880
+ -
+ * - 49
+ - MSI DigiVox A/D
+ - em2880
+ - eb1a:e310
+ * - 50
+ - MSI DigiVox A/D II
+ - em2880
+ - eb1a:e320
+ * - 51
+ - Terratec Hybrid XS Secam
+ - em2880
+ - 0ccd:004c
+ * - 52
+ - DNT DA2 Hybrid
+ - em2881
+ -
+ * - 53
+ - Pinnacle Hybrid Pro
+ - em2881
+ -
+ * - 54
+ - Kworld VS-DVB-T 323UR
+ - em2882
+ - eb1a:e323
+ * - 55
+ - Terratec Cinnergy Hybrid T USB XS (em2882)
+ - em2882
+ - 0ccd:005e, 0ccd:0042
+ * - 56
+ - Pinnacle Hybrid Pro (330e)
+ - em2882
+ - 2304:0226
+ * - 57
+ - Kworld PlusTV HD Hybrid 330
+ - em2883
+ - eb1a:a316
+ * - 58
+ - Compro VideoMate ForYou/Stereo
+ - em2820 or em2840
+ - 185b:2041
+ * - 59
+ - Pinnacle PCTV HD Mini
+ - em2874
+ - 2304:023f
+ * - 60
+ - Hauppauge WinTV HVR 850
+ - em2883
+ - 2040:651f
+ * - 61
+ - Pixelview PlayTV Box 4 USB 2.0
+ - em2820 or em2840
+ -
+ * - 62
+ - Gadmei TVR200
+ - em2820 or em2840
+ -
+ * - 63
+ - Kaiomy TVnPC U2
+ - em2860
+ - eb1a:e303
+ * - 64
+ - Easy Cap Capture DC-60
+ - em2860
+ - 1b80:e309
+ * - 65
+ - IO-DATA GV-MVP/SZ
+ - em2820 or em2840
+ - 04bb:0515
+ * - 66
+ - Empire dual TV
+ - em2880
+ -
+ * - 67
+ - Terratec Grabby
+ - em2860
+ - 0ccd:0096, 0ccd:10AF
+ * - 68
+ - Terratec AV350
+ - em2860
+ - 0ccd:0084
+ * - 69
+ - KWorld ATSC 315U HDTV TV Box
+ - em2882
+ - eb1a:a313
+ * - 70
+ - Evga inDtube
+ - em2882
+ -
+ * - 71
+ - Silvercrest Webcam 1.3mpix
+ - em2820 or em2840
+ -
+ * - 72
+ - Gadmei UTV330+
+ - em2861
+ -
+ * - 73
+ - Reddo DVB-C USB TV Box
+ - em2870
+ -
+ * - 74
+ - Actionmaster/LinXcel/Digitus VC211A
+ - em2800
+ -
+ * - 75
+ - Dikom DK300
+ - em2882
+ -
+ * - 76
+ - KWorld PlusTV 340U or UB435-Q (ATSC)
+ - em2870
+ - 1b80:a340
+ * - 77
+ - EM2874 Leadership ISDBT
+ - em2874
+ -
+ * - 78
+ - PCTV nanoStick T2 290e
+ - em28174
+ - 2013:024f
+ * - 79
+ - Terratec Cinergy H5
+ - em2884
+ - eb1a:2885, 0ccd:10a2, 0ccd:10ad, 0ccd:10b6
+ * - 80
+ - PCTV DVB-S2 Stick (460e)
+ - em28174
+ - 2013:024c
+ * - 81
+ - Hauppauge WinTV HVR 930C
+ - em2884
+ - 2040:1605
+ * - 82
+ - Terratec Cinergy HTC Stick
+ - em2884
+ - 0ccd:00b2
+ * - 83
+ - Honestech Vidbox NW03
+ - em2860
+ - eb1a:5006
+ * - 84
+ - MaxMedia UB425-TC
+ - em2874
+ - 1b80:e425
+ * - 85
+ - PCTV QuatroStick (510e)
+ - em2884
+ - 2304:0242
+ * - 86
+ - PCTV QuatroStick nano (520e)
+ - em2884
+ - 2013:0251
+ * - 87
+ - Terratec Cinergy HTC USB XS
+ - em2884
+ - 0ccd:008e, 0ccd:00ac
+ * - 88
+ - C3 Tech Digital Duo HDTV/SDTV USB
+ - em2884
+ - 1b80:e755
+ * - 89
+ - Delock 61959
+ - em2874
+ - 1b80:e1cc
+ * - 90
+ - KWorld USB ATSC TV Stick UB435-Q V2
+ - em2874
+ - 1b80:e346
+ * - 91
+ - SpeedLink Vicious And Devine Laplace webcam
+ - em2765
+ - 1ae7:9003, 1ae7:9004
+ * - 92
+ - PCTV DVB-S2 Stick (461e)
+ - em28178
+ - 2013:0258
+ * - 93
+ - KWorld USB ATSC TV Stick UB435-Q V3
+ - em2874
+ - 1b80:e34c
+ * - 94
+ - PCTV tripleStick (292e)
+ - em28178
+ - 2013:025f, 2040:0264
+ * - 95
+ - Leadtek VC100
+ - em2861
+ - 0413:6f07
+ * - 96
+ - Terratec Cinergy T2 Stick HD
+ - em28178
+ - eb1a:8179
+ * - 97
+ - Elgato EyeTV Hybrid 2008 INT
+ - em2884
+ - 0fd9:0018
+ * - 98
+ - PLEX PX-BCUD
+ - em28178
+ - 3275:0085
+ * - 99
+ - Hauppauge WinTV-dualHD DVB
+ - em28174
+ - 2040:0265
+ * - 100
+ - Hauppauge WinTV-dualHD 01595 ATSC/QAM
+ - em28174
+ - 2040:026d
+ * - 101
+ - Terratec Cinergy H6 rev. 2
+ - em2884
+ - 0ccd:10b2
diff --git a/Documentation/media/v4l-drivers/imx.rst b/Documentation/media/v4l-drivers/imx.rst
new file mode 100644
index 000000000000..3c4f58bda178
--- /dev/null
+++ b/Documentation/media/v4l-drivers/imx.rst
@@ -0,0 +1,615 @@
+i.MX Video Capture Driver
+=========================
+
+Introduction
+------------
+
+The Freescale i.MX5/6 contains an Image Processing Unit (IPU), which
+handles the flow of image frames to and from capture devices and
+display devices.
+
+For image capture, the IPU contains the following internal subunits:
+
+- Image DMA Controller (IDMAC)
+- Camera Serial Interface (CSI)
+- Image Converter (IC)
+- Sensor Multi-FIFO Controller (SMFC)
+- Image Rotator (IRT)
+- Video De-Interlacing or Combining Block (VDIC)
+
+The IDMAC is the DMA controller for transfer of image frames to and from
+memory. Various dedicated DMA channels exist for both video capture and
+display paths. During transfer, the IDMAC is also capable of vertical
+image flip, 8x8 block transfer (see IRT description), pixel component
+re-ordering (for example UYVY to YUYV) within the same colorspace, and
+even packed <--> planar conversion. It can also perform a simple
+de-interlacing by interleaving even and odd lines during transfer
+(without motion compensation which requires the VDIC).
+
+The CSI is the backend capture unit that interfaces directly with
+camera sensors over Parallel, BT.656/1120, and MIPI CSI-2 busses.
+
+The IC handles color-space conversion, resizing (downscaling and
+upscaling), horizontal flip, and 90/270 degree rotation operations.
+
+There are three independent "tasks" within the IC that can carry out
+conversions concurrently: pre-process encoding, pre-process viewfinder,
+and post-processing. Within each task, conversions are split into three
+sections: downsizing section, main section (upsizing, flip, colorspace
+conversion, and graphics plane combining), and rotation section.
+
+The IPU time-shares the IC task operations. The time-slice granularity
+is one burst of eight pixels in the downsizing section, one image line
+in the main processing section, one image frame in the rotation section.
+
+The SMFC is composed of four independent FIFOs that each can transfer
+captured frames from sensors directly to memory concurrently via four
+IDMAC channels.
+
+The IRT carries out 90 and 270 degree image rotation operations. The
+rotation operation is carried out on 8x8 pixel blocks at a time. This
+operation is supported by the IDMAC which handles the 8x8 block transfer
+along with block reordering, in coordination with vertical flip.
+
+The VDIC handles the conversion of interlaced video to progressive, with
+support for different motion compensation modes (low, medium, and high
+motion). The deinterlaced output frames from the VDIC can be sent to the
+IC pre-process viewfinder task for further conversions. The VDIC also
+contains a Combiner that combines two image planes, with alpha blending
+and color keying.
+
+In addition to the IPU internal subunits, there are also two units
+outside the IPU that are also involved in video capture on i.MX:
+
+- MIPI CSI-2 Receiver for camera sensors with the MIPI CSI-2 bus
+ interface. This is a Synopsys DesignWare core.
+- Two video multiplexers for selecting among multiple sensor inputs
+ to send to a CSI.
+
+For more info, refer to the latest versions of the i.MX5/6 reference
+manuals [#f1]_ and [#f2]_.
+
+
+Features
+--------
+
+Some of the features of this driver include:
+
+- Many different pipelines can be configured via media controller API,
+ that correspond to the hardware video capture pipelines supported in
+ the i.MX.
+
+- Supports parallel, BT.565, and MIPI CSI-2 interfaces.
+
+- Concurrent independent streams, by configuring pipelines to multiple
+ video capture interfaces using independent entities.
+
+- Scaling, color-space conversion, horizontal and vertical flip, and
+ image rotation via IC task subdevs.
+
+- Many pixel formats supported (RGB, packed and planar YUV, partial
+ planar YUV).
+
+- The VDIC subdev supports motion compensated de-interlacing, with three
+ motion compensation modes: low, medium, and high motion. Pipelines are
+ defined that allow sending frames to the VDIC subdev directly from the
+ CSI. There is also support in the future for sending frames to the
+ VDIC from memory buffers via a output/mem2mem devices.
+
+- Includes a Frame Interval Monitor (FIM) that can correct vertical sync
+ problems with the ADV718x video decoders.
+
+
+Entities
+--------
+
+imx6-mipi-csi2
+--------------
+
+This is the MIPI CSI-2 receiver entity. It has one sink pad to receive
+the MIPI CSI-2 stream (usually from a MIPI CSI-2 camera sensor). It has
+four source pads, corresponding to the four MIPI CSI-2 demuxed virtual
+channel outputs. Multpiple source pads can be enabled to independently
+stream from multiple virtual channels.
+
+This entity actually consists of two sub-blocks. One is the MIPI CSI-2
+core. This is a Synopsys Designware MIPI CSI-2 core. The other sub-block
+is a "CSI-2 to IPU gasket". The gasket acts as a demultiplexer of the
+four virtual channels streams, providing four separate parallel buses
+containing each virtual channel that are routed to CSIs or video
+multiplexers as described below.
+
+On i.MX6 solo/dual-lite, all four virtual channel buses are routed to
+two video multiplexers. Both CSI0 and CSI1 can receive any virtual
+channel, as selected by the video multiplexers.
+
+On i.MX6 Quad, virtual channel 0 is routed to IPU1-CSI0 (after selected
+by a video mux), virtual channels 1 and 2 are hard-wired to IPU1-CSI1
+and IPU2-CSI0, respectively, and virtual channel 3 is routed to
+IPU2-CSI1 (again selected by a video mux).
+
+ipuX_csiY_mux
+-------------
+
+These are the video multiplexers. They have two or more sink pads to
+select from either camera sensors with a parallel interface, or from
+MIPI CSI-2 virtual channels from imx6-mipi-csi2 entity. They have a
+single source pad that routes to a CSI (ipuX_csiY entities).
+
+On i.MX6 solo/dual-lite, there are two video mux entities. One sits
+in front of IPU1-CSI0 to select between a parallel sensor and any of
+the four MIPI CSI-2 virtual channels (a total of five sink pads). The
+other mux sits in front of IPU1-CSI1, and again has five sink pads to
+select between a parallel sensor and any of the four MIPI CSI-2 virtual
+channels.
+
+On i.MX6 Quad, there are two video mux entities. One sits in front of
+IPU1-CSI0 to select between a parallel sensor and MIPI CSI-2 virtual
+channel 0 (two sink pads). The other mux sits in front of IPU2-CSI1 to
+select between a parallel sensor and MIPI CSI-2 virtual channel 3 (two
+sink pads).
+
+ipuX_csiY
+---------
+
+These are the CSI entities. They have a single sink pad receiving from
+either a video mux or from a MIPI CSI-2 virtual channel as described
+above.
+
+This entity has two source pads. The first source pad can link directly
+to the ipuX_vdic entity or the ipuX_ic_prp entity, using hardware links
+that require no IDMAC memory buffer transfer.
+
+When the direct source pad is routed to the ipuX_ic_prp entity, frames
+from the CSI can be processed by one or both of the IC pre-processing
+tasks.
+
+When the direct source pad is routed to the ipuX_vdic entity, the VDIC
+will carry out motion-compensated de-interlace using "high motion" mode
+(see description of ipuX_vdic entity).
+
+The second source pad sends video frames directly to memory buffers
+via the SMFC and an IDMAC channel, bypassing IC pre-processing. This
+source pad is routed to a capture device node, with a node name of the
+format "ipuX_csiY capture".
+
+Note that since the IDMAC source pad makes use of an IDMAC channel, it
+can do pixel reordering within the same colorspace. For example, the
+sink pad can take UYVY2X8, but the IDMAC source pad can output YUYV2X8.
+If the sink pad is receiving YUV, the output at the capture device can
+also be converted to a planar YUV format such as YUV420.
+
+It will also perform simple de-interlace without motion compensation,
+which is activated if the sink pad's field type is an interlaced type,
+and the IDMAC source pad field type is set to none.
+
+This subdev can generate the following event when enabling the second
+IDMAC source pad:
+
+- V4L2_EVENT_IMX_FRAME_INTERVAL_ERROR
+
+The user application can subscribe to this event from the ipuX_csiY
+subdev node. This event is generated by the Frame Interval Monitor
+(see below for more on the FIM).
+
+Cropping in ipuX_csiY
+---------------------
+
+The CSI supports cropping the incoming raw sensor frames. This is
+implemented in the ipuX_csiY entities at the sink pad, using the
+crop selection subdev API.
+
+The CSI also supports fixed divide-by-two downscaling indepently in
+width and height. This is implemented in the ipuX_csiY entities at
+the sink pad, using the compose selection subdev API.
+
+The output rectangle at the ipuX_csiY source pad is the same as
+the compose rectangle at the sink pad. So the source pad rectangle
+cannot be negotiated, it must be set using the compose selection
+API at sink pad (if /2 downscale is desired, otherwise source pad
+rectangle is equal to incoming rectangle).
+
+To give an example of crop and /2 downscale, this will crop a
+1280x960 input frame to 640x480, and then /2 downscale in both
+dimensions to 320x240 (assumes ipu1_csi0 is linked to ipu1_csi0_mux):
+
+media-ctl -V "'ipu1_csi0_mux':2[fmt:UYVY2X8/1280x960]"
+media-ctl -V "'ipu1_csi0':0[crop:(0,0)/640x480]"
+media-ctl -V "'ipu1_csi0':0[compose:(0,0)/320x240]"
+
+Frame Skipping in ipuX_csiY
+---------------------------
+
+The CSI supports frame rate decimation, via frame skipping. Frame
+rate decimation is specified by setting the frame intervals at
+sink and source pads. The ipuX_csiY entity then applies the best
+frame skip setting to the CSI to achieve the desired frame rate
+at the source pad.
+
+The following example reduces an assumed incoming 60 Hz frame
+rate by half at the IDMAC output source pad:
+
+media-ctl -V "'ipu1_csi0':0[fmt:UYVY2X8/640x480@1/60]"
+media-ctl -V "'ipu1_csi0':2[fmt:UYVY2X8/640x480@1/30]"
+
+Frame Interval Monitor in ipuX_csiY
+-----------------------------------
+
+The adv718x decoders can occasionally send corrupt fields during
+NTSC/PAL signal re-sync (too little or too many video lines). When
+this happens, the IPU triggers a mechanism to re-establish vertical
+sync by adding 1 dummy line every frame, which causes a rolling effect
+from image to image, and can last a long time before a stable image is
+recovered. Or sometimes the mechanism doesn't work at all, causing a
+permanent split image (one frame contains lines from two consecutive
+captured images).
+
+From experiment it was found that during image rolling, the frame
+intervals (elapsed time between two EOF's) drop below the nominal
+value for the current standard, by about one frame time (60 usec),
+and remain at that value until rolling stops.
+
+While the reason for this observation isn't known (the IPU dummy
+line mechanism should show an increase in the intervals by 1 line
+time every frame, not a fixed value), we can use it to detect the
+corrupt fields using a frame interval monitor. If the FIM detects a
+bad frame interval, the ipuX_csiY subdev will send the event
+V4L2_EVENT_IMX_FRAME_INTERVAL_ERROR. Userland can register with
+the FIM event notification on the ipuX_csiY subdev device node.
+Userland can issue a streaming restart when this event is received
+to correct the rolling/split image.
+
+The ipuX_csiY subdev includes custom controls to tweak some dials for
+FIM. If one of these controls is changed during streaming, the FIM will
+be reset and will continue at the new settings.
+
+- V4L2_CID_IMX_FIM_ENABLE
+
+Enable/disable the FIM.
+
+- V4L2_CID_IMX_FIM_NUM
+
+How many frame interval measurements to average before comparing against
+the nominal frame interval reported by the sensor. This can reduce noise
+caused by interrupt latency.
+
+- V4L2_CID_IMX_FIM_TOLERANCE_MIN
+
+If the averaged intervals fall outside nominal by this amount, in
+microseconds, the V4L2_EVENT_IMX_FRAME_INTERVAL_ERROR event is sent.
+
+- V4L2_CID_IMX_FIM_TOLERANCE_MAX
+
+If any intervals are higher than this value, those samples are
+discarded and do not enter into the average. This can be used to
+discard really high interval errors that might be due to interrupt
+latency from high system load.
+
+- V4L2_CID_IMX_FIM_NUM_SKIP
+
+How many frames to skip after a FIM reset or stream restart before
+FIM begins to average intervals.
+
+- V4L2_CID_IMX_FIM_ICAP_CHANNEL
+- V4L2_CID_IMX_FIM_ICAP_EDGE
+
+These controls will configure an input capture channel as the method
+for measuring frame intervals. This is superior to the default method
+of measuring frame intervals via EOF interrupt, since it is not subject
+to uncertainty errors introduced by interrupt latency.
+
+Input capture requires hardware support. A VSYNC signal must be routed
+to one of the i.MX6 input capture channel pads.
+
+V4L2_CID_IMX_FIM_ICAP_CHANNEL configures which i.MX6 input capture
+channel to use. This must be 0 or 1.
+
+V4L2_CID_IMX_FIM_ICAP_EDGE configures which signal edge will trigger
+input capture events. By default the input capture method is disabled
+with a value of IRQ_TYPE_NONE. Set this control to IRQ_TYPE_EDGE_RISING,
+IRQ_TYPE_EDGE_FALLING, or IRQ_TYPE_EDGE_BOTH to enable input capture,
+triggered on the given signal edge(s).
+
+When input capture is disabled, frame intervals will be measured via
+EOF interrupt.
+
+
+ipuX_vdic
+---------
+
+The VDIC carries out motion compensated de-interlacing, with three
+motion compensation modes: low, medium, and high motion. The mode is
+specified with the menu control V4L2_CID_DEINTERLACING_MODE. It has
+two sink pads and a single source pad.
+
+The direct sink pad receives from an ipuX_csiY direct pad. With this
+link the VDIC can only operate in high motion mode.
+
+When the IDMAC sink pad is activated, it receives from an output
+or mem2mem device node. With this pipeline, it can also operate
+in low and medium modes, because these modes require receiving
+frames from memory buffers. Note that an output or mem2mem device
+is not implemented yet, so this sink pad currently has no links.
+
+The source pad routes to the IC pre-processing entity ipuX_ic_prp.
+
+ipuX_ic_prp
+-----------
+
+This is the IC pre-processing entity. It acts as a router, routing
+data from its sink pad to one or both of its source pads.
+
+It has a single sink pad. The sink pad can receive from the ipuX_csiY
+direct pad, or from ipuX_vdic.
+
+This entity has two source pads. One source pad routes to the
+pre-process encode task entity (ipuX_ic_prpenc), the other to the
+pre-process viewfinder task entity (ipuX_ic_prpvf). Both source pads
+can be activated at the same time if the sink pad is receiving from
+ipuX_csiY. Only the source pad to the pre-process viewfinder task entity
+can be activated if the sink pad is receiving from ipuX_vdic (frames
+from the VDIC can only be processed by the pre-process viewfinder task).
+
+ipuX_ic_prpenc
+--------------
+
+This is the IC pre-processing encode entity. It has a single sink
+pad from ipuX_ic_prp, and a single source pad. The source pad is
+routed to a capture device node, with a node name of the format
+"ipuX_ic_prpenc capture".
+
+This entity performs the IC pre-process encode task operations:
+color-space conversion, resizing (downscaling and upscaling),
+horizontal and vertical flip, and 90/270 degree rotation. Flip
+and rotation are provided via standard V4L2 controls.
+
+Like the ipuX_csiY IDMAC source, it can also perform simple de-interlace
+without motion compensation, and pixel reordering.
+
+ipuX_ic_prpvf
+-------------
+
+This is the IC pre-processing viewfinder entity. It has a single sink
+pad from ipuX_ic_prp, and a single source pad. The source pad is routed
+to a capture device node, with a node name of the format
+"ipuX_ic_prpvf capture".
+
+It is identical in operation to ipuX_ic_prpenc, with the same resizing
+and CSC operations and flip/rotation controls. It will receive and
+process de-interlaced frames from the ipuX_vdic if ipuX_ic_prp is
+receiving from ipuX_vdic.
+
+Like the ipuX_csiY IDMAC source, it can perform simple de-interlace
+without motion compensation. However, note that if the ipuX_vdic is
+included in the pipeline (ipuX_ic_prp is receiving from ipuX_vdic),
+it's not possible to use simple de-interlace in ipuX_ic_prpvf, since
+the ipuX_vdic has already carried out de-interlacing (with motion
+compensation) and therefore the field type output from ipuX_ic_prp can
+only be none.
+
+Capture Pipelines
+-----------------
+
+The following describe the various use-cases supported by the pipelines.
+
+The links shown do not include the backend sensor, video mux, or mipi
+csi-2 receiver links. This depends on the type of sensor interface
+(parallel or mipi csi-2). So these pipelines begin with:
+
+sensor -> ipuX_csiY_mux -> ...
+
+for parallel sensors, or:
+
+sensor -> imx6-mipi-csi2 -> (ipuX_csiY_mux) -> ...
+
+for mipi csi-2 sensors. The imx6-mipi-csi2 receiver may need to route
+to the video mux (ipuX_csiY_mux) before sending to the CSI, depending
+on the mipi csi-2 virtual channel, hence ipuX_csiY_mux is shown in
+parenthesis.
+
+Unprocessed Video Capture:
+--------------------------
+
+Send frames directly from sensor to camera device interface node, with
+no conversions, via ipuX_csiY IDMAC source pad:
+
+-> ipuX_csiY:2 -> ipuX_csiY capture
+
+IC Direct Conversions:
+----------------------
+
+This pipeline uses the preprocess encode entity to route frames directly
+from the CSI to the IC, to carry out scaling up to 1024x1024 resolution,
+CSC, flipping, and image rotation:
+
+-> ipuX_csiY:1 -> 0:ipuX_ic_prp:1 -> 0:ipuX_ic_prpenc:1 ->
+ ipuX_ic_prpenc capture
+
+Motion Compensated De-interlace:
+--------------------------------
+
+This pipeline routes frames from the CSI direct pad to the VDIC entity to
+support motion-compensated de-interlacing (high motion mode only),
+scaling up to 1024x1024, CSC, flip, and rotation:
+
+-> ipuX_csiY:1 -> 0:ipuX_vdic:2 -> 0:ipuX_ic_prp:2 ->
+ 0:ipuX_ic_prpvf:1 -> ipuX_ic_prpvf capture
+
+
+Usage Notes
+-----------
+
+To aid in configuration and for backward compatibility with V4L2
+applications that access controls only from video device nodes, the
+capture device interfaces inherit controls from the active entities
+in the current pipeline, so controls can be accessed either directly
+from the subdev or from the active capture device interface. For
+example, the FIM controls are available either from the ipuX_csiY
+subdevs or from the active capture device.
+
+The following are specific usage notes for the Sabre* reference
+boards:
+
+
+SabreLite with OV5642 and OV5640
+--------------------------------
+
+This platform requires the OmniVision OV5642 module with a parallel
+camera interface, and the OV5640 module with a MIPI CSI-2
+interface. Both modules are available from Boundary Devices:
+
+https://boundarydevices.com/product/nit6x_5mp
+https://boundarydevices.com/product/nit6x_5mp_mipi
+
+Note that if only one camera module is available, the other sensor
+node can be disabled in the device tree.
+
+The OV5642 module is connected to the parallel bus input on the i.MX
+internal video mux to IPU1 CSI0. It's i2c bus connects to i2c bus 2.
+
+The MIPI CSI-2 OV5640 module is connected to the i.MX internal MIPI CSI-2
+receiver, and the four virtual channel outputs from the receiver are
+routed as follows: vc0 to the IPU1 CSI0 mux, vc1 directly to IPU1 CSI1,
+vc2 directly to IPU2 CSI0, and vc3 to the IPU2 CSI1 mux. The OV5640 is
+also connected to i2c bus 2 on the SabreLite, therefore the OV5642 and
+OV5640 must not share the same i2c slave address.
+
+The following basic example configures unprocessed video capture
+pipelines for both sensors. The OV5642 is routed to ipu1_csi0, and
+the OV5640, transmitting on MIPI CSI-2 virtual channel 1 (which is
+imx6-mipi-csi2 pad 2), is routed to ipu1_csi1. Both sensors are
+configured to output 640x480, and the OV5642 outputs YUYV2X8, the
+OV5640 UYVY2X8:
+
+.. code-block:: none
+
+ # Setup links for OV5642
+ media-ctl -l "'ov5642 1-0042':0 -> 'ipu1_csi0_mux':1[1]"
+ media-ctl -l "'ipu1_csi0_mux':2 -> 'ipu1_csi0':0[1]"
+ media-ctl -l "'ipu1_csi0':2 -> 'ipu1_csi0 capture':0[1]"
+ # Setup links for OV5640
+ media-ctl -l "'ov5640 1-0040':0 -> 'imx6-mipi-csi2':0[1]"
+ media-ctl -l "'imx6-mipi-csi2':2 -> 'ipu1_csi1':0[1]"
+ media-ctl -l "'ipu1_csi1':2 -> 'ipu1_csi1 capture':0[1]"
+ # Configure pads for OV5642 pipeline
+ media-ctl -V "'ov5642 1-0042':0 [fmt:YUYV2X8/640x480 field:none]"
+ media-ctl -V "'ipu1_csi0_mux':2 [fmt:YUYV2X8/640x480 field:none]"
+ media-ctl -V "'ipu1_csi0':2 [fmt:AYUV32/640x480 field:none]"
+ # Configure pads for OV5640 pipeline
+ media-ctl -V "'ov5640 1-0040':0 [fmt:UYVY2X8/640x480 field:none]"
+ media-ctl -V "'imx6-mipi-csi2':2 [fmt:UYVY2X8/640x480 field:none]"
+ media-ctl -V "'ipu1_csi1':2 [fmt:AYUV32/640x480 field:none]"
+
+Streaming can then begin independently on the capture device nodes
+"ipu1_csi0 capture" and "ipu1_csi1 capture". The v4l2-ctl tool can
+be used to select any supported YUV pixelformat on the capture device
+nodes, including planar.
+
+SabreAuto with ADV7180 decoder
+------------------------------
+
+On the SabreAuto, an on-board ADV7180 SD decoder is connected to the
+parallel bus input on the internal video mux to IPU1 CSI0.
+
+The following example configures a pipeline to capture from the ADV7180
+video decoder, assuming NTSC 720x480 input signals, with Motion
+Compensated de-interlacing. Pad field types assume the adv7180 outputs
+"interlaced". $outputfmt can be any format supported by the ipu1_ic_prpvf
+entity at its output pad:
+
+.. code-block:: none
+
+ # Setup links
+ media-ctl -l "'adv7180 3-0021':0 -> 'ipu1_csi0_mux':1[1]"
+ media-ctl -l "'ipu1_csi0_mux':2 -> 'ipu1_csi0':0[1]"
+ media-ctl -l "'ipu1_csi0':1 -> 'ipu1_vdic':0[1]"
+ media-ctl -l "'ipu1_vdic':2 -> 'ipu1_ic_prp':0[1]"
+ media-ctl -l "'ipu1_ic_prp':2 -> 'ipu1_ic_prpvf':0[1]"
+ media-ctl -l "'ipu1_ic_prpvf':1 -> 'ipu1_ic_prpvf capture':0[1]"
+ # Configure pads
+ media-ctl -V "'adv7180 3-0021':0 [fmt:UYVY2X8/720x480]"
+ media-ctl -V "'ipu1_csi0_mux':2 [fmt:UYVY2X8/720x480 field:interlaced]"
+ media-ctl -V "'ipu1_csi0':1 [fmt:AYUV32/720x480 field:interlaced]"
+ media-ctl -V "'ipu1_vdic':2 [fmt:AYUV32/720x480 field:none]"
+ media-ctl -V "'ipu1_ic_prp':2 [fmt:AYUV32/720x480 field:none]"
+ media-ctl -V "'ipu1_ic_prpvf':1 [fmt:$outputfmt field:none]"
+
+Streaming can then begin on the capture device node at
+"ipu1_ic_prpvf capture". The v4l2-ctl tool can be used to select any
+supported YUV or RGB pixelformat on the capture device node.
+
+This platform accepts Composite Video analog inputs to the ADV7180 on
+Ain1 (connector J42).
+
+SabreSD with MIPI CSI-2 OV5640
+------------------------------
+
+Similarly to SabreLite, the SabreSD supports a parallel interface
+OV5642 module on IPU1 CSI0, and a MIPI CSI-2 OV5640 module. The OV5642
+connects to i2c bus 1 and the OV5640 to i2c bus 2.
+
+The device tree for SabreSD includes OF graphs for both the parallel
+OV5642 and the MIPI CSI-2 OV5640, but as of this writing only the MIPI
+CSI-2 OV5640 has been tested, so the OV5642 node is currently disabled.
+The OV5640 module connects to MIPI connector J5 (sorry I don't have the
+compatible module part number or URL).
+
+The following example configures a direct conversion pipeline to capture
+from the OV5640, transmitting on MIPI CSI-2 virtual channel 1. $sensorfmt
+can be any format supported by the OV5640. $sensordim is the frame
+dimension part of $sensorfmt (minus the mbus pixel code). $outputfmt can
+be any format supported by the ipu1_ic_prpenc entity at its output pad:
+
+.. code-block:: none
+
+ # Setup links
+ media-ctl -l "'ov5640 1-003c':0 -> 'imx6-mipi-csi2':0[1]"
+ media-ctl -l "'imx6-mipi-csi2':2 -> 'ipu1_csi1':0[1]"
+ media-ctl -l "'ipu1_csi1':1 -> 'ipu1_ic_prp':0[1]"
+ media-ctl -l "'ipu1_ic_prp':1 -> 'ipu1_ic_prpenc':0[1]"
+ media-ctl -l "'ipu1_ic_prpenc':1 -> 'ipu1_ic_prpenc capture':0[1]"
+ # Configure pads
+ media-ctl -V "'ov5640 1-003c':0 [fmt:$sensorfmt field:none]"
+ media-ctl -V "'imx6-mipi-csi2':2 [fmt:$sensorfmt field:none]"
+ media-ctl -V "'ipu1_csi1':1 [fmt:AYUV32/$sensordim field:none]"
+ media-ctl -V "'ipu1_ic_prp':1 [fmt:AYUV32/$sensordim field:none]"
+ media-ctl -V "'ipu1_ic_prpenc':1 [fmt:$outputfmt field:none]"
+
+Streaming can then begin on "ipu1_ic_prpenc capture" node. The v4l2-ctl
+tool can be used to select any supported YUV or RGB pixelformat on the
+capture device node.
+
+
+Known Issues
+------------
+
+1. When using 90 or 270 degree rotation control at capture resolutions
+ near the IC resizer limit of 1024x1024, and combined with planar
+ pixel formats (YUV420, YUV422p), frame capture will often fail with
+ no end-of-frame interrupts from the IDMAC channel. To work around
+ this, use lower resolution and/or packed formats (YUYV, RGB3, etc.)
+ when 90 or 270 rotations are needed.
+
+
+File list
+---------
+
+drivers/staging/media/imx/
+include/media/imx.h
+include/linux/imx-media.h
+
+References
+----------
+
+.. [#f1] http://www.nxp.com/assets/documents/data/en/reference-manuals/IMX6DQRM.pdf
+.. [#f2] http://www.nxp.com/assets/documents/data/en/reference-manuals/IMX6SDLRM.pdf
+
+
+Authors
+-------
+
+- Steve Longerbeam <steve_longerbeam@mentor.com>
+- Philipp Zabel <kernel@pengutronix.de>
+- Russell King <linux@armlinux.org.uk>
+
+Copyright (C) 2012-2017 Mentor Graphics Inc.
diff --git a/Documentation/media/v4l-drivers/index.rst b/Documentation/media/v4l-drivers/index.rst
index 90fe22a6414a..679238e786a7 100644
--- a/Documentation/media/v4l-drivers/index.rst
+++ b/Documentation/media/v4l-drivers/index.rst
@@ -21,7 +21,9 @@ more details.
For more details see the file COPYING in the source distribution of Linux.
-.. class:: toc-title
+.. only:: html
+
+ .. class:: toc-title
Table of Contents
@@ -41,13 +43,16 @@ For more details see the file COPYING in the source distribution of Linux.
cx88
davinci-vpbe
fimc
+ imx
ivtv
+ max2175
meye
omap3isp
omap4_camera
philips
pvrusb2
pxa_camera
+ qcom_camss
radiotrack
rcar-fdp1
saa7134
diff --git a/Documentation/media/v4l-drivers/ivtv-cardlist.rst b/Documentation/media/v4l-drivers/ivtv-cardlist.rst
index 754ffa820b4c..022dca80c2c8 100644
--- a/Documentation/media/v4l-drivers/ivtv-cardlist.rst
+++ b/Documentation/media/v4l-drivers/ivtv-cardlist.rst
@@ -1,38 +1,137 @@
IVTV cards list
===============
-=========== ============================================================= ====================================================
-Card number Card name PCI IDs
-=========== ============================================================= ====================================================
-0 Hauppauge WinTV PVR-250 IVTV16 104d:813d
-1 Hauppauge WinTV PVR-350 IVTV16 104d:813d
-2 Hauppauge WinTV PVR-150 IVTV16 104d:813d
-3 AVerMedia M179 IVTV15 1461:a3cf, IVTV15 1461:a3ce
-4 Yuan MPG600, Kuroutoshikou ITVC16-STVLP IVTV16 12ab:fff3, IVTV16 12ab:ffff
-5 YUAN MPG160, Kuroutoshikou ITVC15-STVLP, I/O Data GV-M2TV/PCI IVTV15 10fc:40a0
-6 Yuan PG600, Diamond PVR-550 IVTV16 ff92:0070, IVTV16 ffab:0600
-7 Adaptec VideOh! AVC-2410 IVTV16 9005:0093
-8 Adaptec VideOh! AVC-2010 IVTV16 9005:0092
-9 Nagase Transgear 5000TV IVTV16 1461:bfff
-10 AOpen VA2000MAX-SNT6 IVTV16 0000:ff5f
-11 Yuan MPG600GR, Kuroutoshikou CX23416GYC-STVLP IVTV16 12ab:0600, IVTV16 fbab:0600, IVTV16 1154:0523
-12 I/O Data GV-MVP/RX, GV-MVP/RX2W (dual tuner) IVTV16 10fc:d01e, IVTV16 10fc:d038, IVTV16 10fc:d039
-13 I/O Data GV-MVP/RX2E IVTV16 10fc:d025
-14 GotView PCI DVD IVTV16 12ab:0600
-15 GotView PCI DVD2 Deluxe IVTV16 ffac:0600
-16 Yuan MPC622 IVTV16 ff01:d998
-17 Digital Cowboy DCT-MTVP1 IVTV16 1461:bfff
-18 Yuan PG600-2, GotView PCI DVD Lite IVTV16 ffab:0600, IVTV16 ffad:0600
-19 Club3D ZAP-TV1x01 IVTV16 ffab:0600
-20 AVerTV MCE 116 Plus IVTV16 1461:c439
-21 ASUS Falcon2 IVTV16 1043:4b66, IVTV16 1043:462e, IVTV16 1043:4b2e
-22 AVerMedia PVR-150 Plus / AVerTV M113 Partsnic (Daewoo) Tuner IVTV16 1461:c034, IVTV16 1461:c035
-23 AVerMedia EZMaker PCI Deluxe IVTV16 1461:c03f
-24 AVerMedia M104 IVTV16 1461:c136
-25 Buffalo PC-MV5L/PCI IVTV16 1154:052b
-26 AVerMedia UltraTV 1500 MCE / AVerTV M113 Philips Tuner IVTV16 1461:c019, IVTV16 1461:c01b
-27 Sony VAIO Giga Pocket (ENX Kikyou) IVTV16 104d:813d
-28 Hauppauge WinTV PVR-350 (V1) IVTV16 104d:813d
-29 Yuan MPG600GR, Kuroutoshikou CX23416GYC-STVLP (no GR) IVTV16 104d:813d
-30 Yuan MPG600GR, Kuroutoshikou CX23416GYC-STVLP (no GR/YCS) IVTV16 104d:813d
-=========== ============================================================= ====================================================
+.. tabularcolumns:: |p{1.4cm}|p{12.7cm}|p{3.4cm}|
+
+.. flat-table::
+ :header-rows: 1
+ :widths: 2 19 18
+ :stub-columns: 0
+
+ * - Card number
+ - Card name
+ - PCI IDs
+
+ * - 0
+ - Hauppauge WinTV PVR-250
+ - IVTV16 104d:813d
+
+ * - 1
+ - Hauppauge WinTV PVR-350
+ - IVTV16 104d:813d
+
+ * - 2
+ - Hauppauge WinTV PVR-150
+ - IVTV16 104d:813d
+
+ * - 3
+ - AVerMedia M179
+ - IVTV15 1461:a3cf, IVTV15 1461:a3ce
+
+ * - 4
+ - Yuan MPG600, Kuroutoshikou ITVC16-STVLP
+ - IVTV16 12ab:fff3, IVTV16 12ab:ffff
+
+ * - 5
+ - YUAN MPG160, Kuroutoshikou ITVC15-STVLP, I/O Data GV-M2TV/PCI
+ - IVTV15 10fc:40a0
+
+ * - 6
+ - Yuan PG600, Diamond PVR-550
+ - IVTV16 ff92:0070, IVTV16 ffab:0600
+
+ * - 7
+ - Adaptec VideOh! AVC-2410
+ - IVTV16 9005:0093
+
+ * - 8
+ - Adaptec VideOh! AVC-2010
+ - IVTV16 9005:0092
+
+ * - 9
+ - Nagase Transgear 5000TV
+ - IVTV16 1461:bfff
+
+ * - 10
+ - AOpen VA2000MAX-SNT6
+ - IVTV16 0000:ff5f
+
+ * - 11
+ - Yuan MPG600GR, Kuroutoshikou CX23416GYC-STVLP
+ - IVTV16 12ab:0600, IVTV16 fbab:0600, IVTV16 1154:0523
+
+ * - 12
+ - I/O Data GV-MVP/RX, GV-MVP/RX2W (dual tuner)
+ - IVTV16 10fc:d01e, IVTV16 10fc:d038, IVTV16 10fc:d039
+
+ * - 13
+ - I/O Data GV-MVP/RX2E
+ - IVTV16 10fc:d025
+
+ * - 14
+ - GotView PCI DVD
+ - IVTV16 12ab:0600
+
+ * - 15
+ - GotView PCI DVD2 Deluxe
+ - IVTV16 ffac:0600
+
+ * - 16
+ - Yuan MPC622
+ - IVTV16 ff01:d998
+
+ * - 17
+ - Digital Cowboy DCT-MTVP1
+ - IVTV16 1461:bfff
+
+ * - 18
+ - Yuan PG600-2, GotView PCI DVD Lite
+ - IVTV16 ffab:0600, IVTV16 ffad:0600
+
+ * - 19
+ - Club3D ZAP-TV1x01
+ - IVTV16 ffab:0600
+
+ * - 20
+ - AVerTV MCE 116 Plus
+ - IVTV16 1461:c439
+
+ * - 21
+ - ASUS Falcon2
+ - IVTV16 1043:4b66, IVTV16 1043:462e, IVTV16 1043:4b2e
+
+ * - 22
+ - AVerMedia PVR-150 Plus / AVerTV M113 Partsnic (Daewoo) Tuner
+ - IVTV16 1461:c034, IVTV16 1461:c035
+
+ * - 23
+ - AVerMedia EZMaker PCI Deluxe
+ - IVTV16 1461:c03f
+
+ * - 24
+ - AVerMedia M104
+ - IVTV16 1461:c136
+
+ * - 25
+ - Buffalo PC-MV5L/PCI
+ - IVTV16 1154:052b
+
+ * - 26
+ - AVerMedia UltraTV 1500 MCE / AVerTV M113 Philips Tuner
+ - IVTV16 1461:c019, IVTV16 1461:c01b
+
+ * - 27
+ - Sony VAIO Giga Pocket (ENX Kikyou)
+ - IVTV16 104d:813d
+
+ * - 28
+ - Hauppauge WinTV PVR-350 (V1)
+ - IVTV16 104d:813d
+
+ * - 29
+ - Yuan MPG600GR, Kuroutoshikou CX23416GYC-STVLP (no GR)
+ - IVTV16 104d:813d
+
+ * - 30
+ - Yuan MPG600GR, Kuroutoshikou CX23416GYC-STVLP (no GR/YCS)
+ - IVTV16 104d:813d
diff --git a/Documentation/media/v4l-drivers/max2175.rst b/Documentation/media/v4l-drivers/max2175.rst
new file mode 100644
index 000000000000..04478c25d57a
--- /dev/null
+++ b/Documentation/media/v4l-drivers/max2175.rst
@@ -0,0 +1,62 @@
+Maxim Integrated MAX2175 RF to bits tuner driver
+================================================
+
+The MAX2175 driver implements the following driver-specific controls:
+
+``V4L2_CID_MAX2175_I2S_ENABLE``
+-------------------------------
+ Enable/Disable I2S output of the tuner. This is a private control
+ that can be accessed only using the subdev interface.
+ Refer to Documentation/media/kapi/v4l2-controls for more details.
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 4
+
+ * - ``(0)``
+ - I2S output is disabled.
+ * - ``(1)``
+ - I2S output is enabled.
+
+``V4L2_CID_MAX2175_HSLS``
+-------------------------
+ The high-side/low-side (HSLS) control of the tuner for a given band.
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 4
+
+ * - ``(0)``
+ - The LO frequency position is below the desired frequency.
+ * - ``(1)``
+ - The LO frequency position is above the desired frequency.
+
+``V4L2_CID_MAX2175_RX_MODE (menu)``
+-----------------------------------
+ The Rx mode controls a number of preset parameters of the tuner like
+ sample clock (sck), sampling rate etc. These multiple settings are
+ provided under one single label called Rx mode in the datasheet. The
+ list below shows the supported modes with a brief description.
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 4
+
+ * - ``"Europe modes"``
+ * - ``"FM 1.2" (0)``
+ - This configures FM band with a sample rate of 0.512 million
+ samples/sec with a 10.24 MHz sck.
+ * - ``"DAB 1.2" (1)``
+ - This configures VHF band with a sample rate of 2.048 million
+ samples/sec with a 32.768 MHz sck.
+
+ * - ``"North America modes"``
+ * - ``"FM 1.0" (0)``
+ - This configures FM band with a sample rate of 0.7441875 million
+ samples/sec with a 14.88375 MHz sck.
+ * - ``"DAB 1.2" (1)``
+ - This configures FM band with a sample rate of 0.372 million
+ samples/sec with a 7.441875 MHz sck.
diff --git a/Documentation/media/v4l-drivers/qcom_camss.rst b/Documentation/media/v4l-drivers/qcom_camss.rst
new file mode 100644
index 000000000000..9e66b7b5770f
--- /dev/null
+++ b/Documentation/media/v4l-drivers/qcom_camss.rst
@@ -0,0 +1,156 @@
+.. include:: <isonum.txt>
+
+Qualcomm Camera Subsystem driver
+================================
+
+Introduction
+------------
+
+This file documents the Qualcomm Camera Subsystem driver located under
+drivers/media/platform/qcom/camss-8x16.
+
+The current version of the driver supports the Camera Subsystem found on
+Qualcomm MSM8916 and APQ8016 processors.
+
+The driver implements V4L2, Media controller and V4L2 subdev interfaces.
+Camera sensor using V4L2 subdev interface in the kernel is supported.
+
+The driver is implemented using as a reference the Qualcomm Camera Subsystem
+driver for Android as found in Code Aurora [#f1]_.
+
+
+Qualcomm Camera Subsystem hardware
+----------------------------------
+
+The Camera Subsystem hardware found on 8x16 processors and supported by the
+driver consists of:
+
+- 2 CSIPHY modules. They handle the Physical layer of the CSI2 receivers.
+ A separate camera sensor can be connected to each of the CSIPHY module;
+- 2 CSID (CSI Decoder) modules. They handle the Protocol and Application layer
+ of the CSI2 receivers. A CSID can decode data stream from any of the CSIPHY.
+ Each CSID also contains a TG (Test Generator) block which can generate
+ artificial input data for test purposes;
+- ISPIF (ISP Interface) module. Handles the routing of the data streams from
+ the CSIDs to the inputs of the VFE;
+- VFE (Video Front End) module. Contains a pipeline of image processing hardware
+ blocks. The VFE has different input interfaces. The PIX (Pixel) input
+ interface feeds the input data to the image processing pipeline. The image
+ processing pipeline contains also a scale and crop module at the end. Three
+ RDI (Raw Dump Interface) input interfaces bypass the image processing
+ pipeline. The VFE also contains the AXI bus interface which writes the output
+ data to memory.
+
+
+Supported functionality
+-----------------------
+
+The current version of the driver supports:
+
+- Input from camera sensor via CSIPHY;
+- Generation of test input data by the TG in CSID;
+- RDI interface of VFE - raw dump of the input data to memory.
+
+ Supported formats:
+
+ - YUYV/UYVY/YVYU/VYUY (packed YUV 4:2:2 - V4L2_PIX_FMT_YUYV /
+ V4L2_PIX_FMT_UYVY / V4L2_PIX_FMT_YVYU / V4L2_PIX_FMT_VYUY);
+ - MIPI RAW8 (8bit Bayer RAW - V4L2_PIX_FMT_SRGGB8 /
+ V4L2_PIX_FMT_SGRBG8 / V4L2_PIX_FMT_SGBRG8 / V4L2_PIX_FMT_SBGGR8);
+ - MIPI RAW10 (10bit packed Bayer RAW - V4L2_PIX_FMT_SBGGR10P /
+ V4L2_PIX_FMT_SGBRG10P / V4L2_PIX_FMT_SGRBG10P / V4L2_PIX_FMT_SRGGB10P);
+ - MIPI RAW12 (12bit packed Bayer RAW - V4L2_PIX_FMT_SRGGB12P /
+ V4L2_PIX_FMT_SGBRG12P / V4L2_PIX_FMT_SGRBG12P / V4L2_PIX_FMT_SRGGB12P).
+
+- PIX interface of VFE
+
+ - Format conversion of the input data.
+
+ Supported input formats:
+
+ - YUYV/UYVY/YVYU/VYUY (packed YUV 4:2:2 - V4L2_PIX_FMT_YUYV /
+ V4L2_PIX_FMT_UYVY / V4L2_PIX_FMT_YVYU / V4L2_PIX_FMT_VYUY).
+
+ Supported output formats:
+
+ - NV12/NV21 (two plane YUV 4:2:0 - V4L2_PIX_FMT_NV12 / V4L2_PIX_FMT_NV21);
+ - NV16/NV61 (two plane YUV 4:2:2 - V4L2_PIX_FMT_NV16 / V4L2_PIX_FMT_NV61).
+
+ - Scaling support. Configuration of the VFE Encoder Scale module
+ for downscalling with ratio up to 16x.
+
+ - Cropping support. Configuration of the VFE Encoder Crop module.
+
+- Concurrent and independent usage of two data inputs - could be camera sensors
+ and/or TG.
+
+
+Driver Architecture and Design
+------------------------------
+
+The driver implements the V4L2 subdev interface. With the goal to model the
+hardware links between the modules and to expose a clean, logical and usable
+interface, the driver is split into V4L2 sub-devices as follows:
+
+- 2 CSIPHY sub-devices - each CSIPHY is represented by a single sub-device;
+- 2 CSID sub-devices - each CSID is represented by a single sub-device;
+- 2 ISPIF sub-devices - ISPIF is represented by a number of sub-devices equal
+ to the number of CSID sub-devices;
+- 4 VFE sub-devices - VFE is represented by a number of sub-devices equal to
+ the number of the input interfaces (3 RDI and 1 PIX).
+
+The considerations to split the driver in this particular way are as follows:
+
+- representing CSIPHY and CSID modules by a separate sub-device for each module
+ allows to model the hardware links between these modules;
+- representing VFE by a separate sub-devices for each input interface allows
+ to use the input interfaces concurently and independently as this is
+ supported by the hardware;
+- representing ISPIF by a number of sub-devices equal to the number of CSID
+ sub-devices allows to create linear media controller pipelines when using two
+ cameras simultaneously. This avoids branches in the pipelines which otherwise
+ will require a) userspace and b) media framework (e.g. power on/off
+ operations) to make assumptions about the data flow from a sink pad to a
+ source pad on a single media entity.
+
+Each VFE sub-device is linked to a separate video device node.
+
+The media controller pipeline graph is as follows (with connected two OV5645
+camera sensors):
+
+.. _qcom_camss_graph:
+
+.. kernel-figure:: qcom_camss_graph.dot
+ :alt: qcom_camss_graph.dot
+ :align: center
+
+ Media pipeline graph
+
+
+Implementation
+--------------
+
+Runtime configuration of the hardware (updating settings while streaming) is
+not required to implement the currently supported functionality. The complete
+configuration on each hardware module is applied on STREAMON ioctl based on
+the current active media links, formats and controls set.
+
+The output size of the scaler module in the VFE is configured with the actual
+compose selection rectangle on the sink pad of the 'msm_vfe0_pix' entity.
+
+The crop output area of the crop module in the VFE is configured with the actual
+crop selection rectangle on the source pad of the 'msm_vfe0_pix' entity.
+
+
+Documentation
+-------------
+
+APQ8016 Specification:
+https://developer.qualcomm.com/download/sd410/snapdragon-410-processor-device-specification.pdf
+Referenced 2016-11-24.
+
+
+References
+----------
+
+.. [#f1] https://source.codeaurora.org/quic/la/kernel/msm-3.10/
diff --git a/Documentation/media/v4l-drivers/qcom_camss_graph.dot b/Documentation/media/v4l-drivers/qcom_camss_graph.dot
new file mode 100644
index 000000000000..827fc7112c1e
--- /dev/null
+++ b/Documentation/media/v4l-drivers/qcom_camss_graph.dot
@@ -0,0 +1,41 @@
+digraph board {
+ rankdir=TB
+ n00000001 [label="{{<port0> 0} | msm_csiphy0\n/dev/v4l-subdev0 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000001:port1 -> n00000007:port0 [style=dashed]
+ n00000001:port1 -> n0000000a:port0 [style=dashed]
+ n00000004 [label="{{<port0> 0} | msm_csiphy1\n/dev/v4l-subdev1 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000004:port1 -> n00000007:port0 [style=dashed]
+ n00000004:port1 -> n0000000a:port0 [style=dashed]
+ n00000007 [label="{{<port0> 0} | msm_csid0\n/dev/v4l-subdev2 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000007:port1 -> n0000000d:port0 [style=dashed]
+ n00000007:port1 -> n00000010:port0 [style=dashed]
+ n0000000a [label="{{<port0> 0} | msm_csid1\n/dev/v4l-subdev3 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+ n0000000a:port1 -> n0000000d:port0 [style=dashed]
+ n0000000a:port1 -> n00000010:port0 [style=dashed]
+ n0000000d [label="{{<port0> 0} | msm_ispif0\n/dev/v4l-subdev4 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+ n0000000d:port1 -> n00000013:port0 [style=dashed]
+ n0000000d:port1 -> n0000001c:port0 [style=dashed]
+ n0000000d:port1 -> n00000025:port0 [style=dashed]
+ n0000000d:port1 -> n0000002e:port0 [style=dashed]
+ n00000010 [label="{{<port0> 0} | msm_ispif1\n/dev/v4l-subdev5 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000010:port1 -> n00000013:port0 [style=dashed]
+ n00000010:port1 -> n0000001c:port0 [style=dashed]
+ n00000010:port1 -> n00000025:port0 [style=dashed]
+ n00000010:port1 -> n0000002e:port0 [style=dashed]
+ n00000013 [label="{{<port0> 0} | msm_vfe0_rdi0\n/dev/v4l-subdev6 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000013:port1 -> n00000016 [style=bold]
+ n00000016 [label="msm_vfe0_video0\n/dev/video0", shape=box, style=filled, fillcolor=yellow]
+ n0000001c [label="{{<port0> 0} | msm_vfe0_rdi1\n/dev/v4l-subdev7 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+ n0000001c:port1 -> n0000001f [style=bold]
+ n0000001f [label="msm_vfe0_video1\n/dev/video1", shape=box, style=filled, fillcolor=yellow]
+ n00000025 [label="{{<port0> 0} | msm_vfe0_rdi2\n/dev/v4l-subdev8 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000025:port1 -> n00000028 [style=bold]
+ n00000028 [label="msm_vfe0_video2\n/dev/video2", shape=box, style=filled, fillcolor=yellow]
+ n0000002e [label="{{<port0> 0} | msm_vfe0_pix\n/dev/v4l-subdev9 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
+ n0000002e:port1 -> n00000031 [style=bold]
+ n00000031 [label="msm_vfe0_video3\n/dev/video3", shape=box, style=filled, fillcolor=yellow]
+ n00000057 [label="{{} | ov5645 1-0076\n/dev/v4l-subdev10 | {<port0> 0}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000057:port0 -> n00000001:port0 [style=bold]
+ n00000059 [label="{{} | ov5645 1-0074\n/dev/v4l-subdev11 | {<port0> 0}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000059:port0 -> n00000004:port0 [style=bold]
+}
diff --git a/Documentation/media/v4l-drivers/saa7134-cardlist.rst b/Documentation/media/v4l-drivers/saa7134-cardlist.rst
index a5efa8f4b8e4..6e4c35cbaabf 100644
--- a/Documentation/media/v4l-drivers/saa7134-cardlist.rst
+++ b/Documentation/media/v4l-drivers/saa7134-cardlist.rst
@@ -1,204 +1,801 @@
SAA7134 cards list
==================
-=========== ======================================================= ================================================================
-Card number Card name PCI IDs
-=========== ======================================================= ================================================================
-0 UNKNOWN/GENERIC
-1 Proteus Pro [philips reference design] 1131:2001, 1131:2001
-2 LifeView FlyVIDEO3000 5168:0138, 4e42:0138
-3 LifeView/Typhoon FlyVIDEO2000 5168:0138, 4e42:0138
-4 EMPRESS 1131:6752
-5 SKNet Monster TV 1131:4e85
-6 Tevion MD 9717
-7 KNC One TV-Station RDS / Typhoon TV Tuner RDS 1131:fe01, 1894:fe01
-8 Terratec Cinergy 400 TV 153b:1142
-9 Medion 5044
-10 Kworld/KuroutoShikou SAA7130-TVPCI
-11 Terratec Cinergy 600 TV 153b:1143
-12 Medion 7134 16be:0003, 16be:5000
-13 Typhoon TV+Radio 90031
-14 ELSA EX-VISION 300TV 1048:226b
-15 ELSA EX-VISION 500TV 1048:226a
-16 ASUS TV-FM 7134 1043:4842, 1043:4830, 1043:4840
-17 AOPEN VA1000 POWER 1131:7133
-18 BMK MPEX No Tuner
-19 Compro VideoMate TV 185b:c100
-20 Matrox CronosPlus 102B:48d0
-21 10MOONS PCI TV CAPTURE CARD 1131:2001
-22 AverMedia M156 / Medion 2819 1461:a70b
-23 BMK MPEX Tuner
-24 KNC One TV-Station DVR 1894:a006
-25 ASUS TV-FM 7133 1043:4843
-26 Pinnacle PCTV Stereo (saa7134) 11bd:002b
-27 Manli MuchTV M-TV002
-28 Manli MuchTV M-TV001
-29 Nagase Sangyo TransGear 3000TV 1461:050c
-30 Elitegroup ECS TVP3XP FM1216 Tuner Card(PAL-BG,FM) 1019:4cb4
-31 Elitegroup ECS TVP3XP FM1236 Tuner Card (NTSC,FM) 1019:4cb5
-32 AVACS SmartTV
-33 AVerMedia DVD EZMaker 1461:10ff
-34 Noval Prime TV 7133
-35 AverMedia AverTV Studio 305 1461:2115
-36 UPMOST PURPLE TV 12ab:0800
-37 Items MuchTV Plus / IT-005
-38 Terratec Cinergy 200 TV 153b:1152
-39 LifeView FlyTV Platinum Mini 5168:0212, 4e42:0212, 5169:1502
-40 Compro VideoMate TV PVR/FM 185b:c100
-41 Compro VideoMate TV Gold+ 185b:c100
-42 Sabrent SBT-TVFM (saa7130)
-43 :Zolid Xpert TV7134
-44 Empire PCI TV-Radio LE
-45 Avermedia AVerTV Studio 307 1461:9715
-46 AVerMedia Cardbus TV/Radio (E500) 1461:d6ee
-47 Terratec Cinergy 400 mobile 153b:1162
-48 Terratec Cinergy 600 TV MK3 153b:1158
-49 Compro VideoMate Gold+ Pal 185b:c200
-50 Pinnacle PCTV 300i DVB-T + PAL 11bd:002d
-51 ProVideo PV952 1540:9524
-52 AverMedia AverTV/305 1461:2108
-53 ASUS TV-FM 7135 1043:4845
-54 LifeView FlyTV Platinum FM / Gold 5168:0214, 5168:5214, 1489:0214, 5168:0304
-55 LifeView FlyDVB-T DUO / MSI TV@nywhere Duo 5168:0306, 4E42:0306
-56 Avermedia AVerTV 307 1461:a70a
-57 Avermedia AVerTV GO 007 FM 1461:f31f
-58 ADS Tech Instant TV (saa7135) 1421:0350, 1421:0351, 1421:0370, 1421:1370
-59 Kworld/Tevion V-Stream Xpert TV PVR7134
-60 LifeView/Typhoon/Genius FlyDVB-T Duo Cardbus 5168:0502, 4e42:0502, 1489:0502
-61 Philips TOUGH DVB-T reference design 1131:2004
-62 Compro VideoMate TV Gold+II
-63 Kworld Xpert TV PVR7134
-64 FlyTV mini Asus Digimatrix 1043:0210
-65 V-Stream Studio TV Terminator
-66 Yuan TUN-900 (saa7135)
-67 Beholder BeholdTV 409 FM 0000:4091
-68 GoTView 7135 PCI 5456:7135
-69 Philips EUROPA V3 reference design 1131:2004
-70 Compro Videomate DVB-T300 185b:c900
-71 Compro Videomate DVB-T200 185b:c901
-72 RTD Embedded Technologies VFG7350 1435:7350
-73 RTD Embedded Technologies VFG7330 1435:7330
-74 LifeView FlyTV Platinum Mini2 14c0:1212
-75 AVerMedia AVerTVHD MCE A180 1461:1044
-76 SKNet MonsterTV Mobile 1131:4ee9
-77 Pinnacle PCTV 40i/50i/110i (saa7133) 11bd:002e
-78 ASUSTeK P7131 Dual 1043:4862
-79 Sedna/MuchTV PC TV Cardbus TV/Radio (ITO25 Rev:2B)
-80 ASUS Digimatrix TV 1043:0210
-81 Philips Tiger reference design 1131:2018
-82 MSI TV@Anywhere plus 1462:6231, 1462:8624
-83 Terratec Cinergy 250 PCI TV 153b:1160
-84 LifeView FlyDVB Trio 5168:0319
-85 AverTV DVB-T 777 1461:2c05, 1461:2c05
-86 LifeView FlyDVB-T / Genius VideoWonder DVB-T 5168:0301, 1489:0301
-87 ADS Instant TV Duo Cardbus PTV331 0331:1421
-88 Tevion/KWorld DVB-T 220RF 17de:7201
-89 ELSA EX-VISION 700TV 1048:226c
-90 Kworld ATSC110/115 17de:7350, 17de:7352
-91 AVerMedia A169 B 1461:7360
-92 AVerMedia A169 B1 1461:6360
-93 Medion 7134 Bridge #2 16be:0005
-94 LifeView FlyDVB-T Hybrid Cardbus/MSI TV @nywhere A/D NB 5168:3306, 5168:3502, 5168:3307, 4e42:3502
-95 LifeView FlyVIDEO3000 (NTSC) 5169:0138
-96 Medion Md8800 Quadro 16be:0007, 16be:0008, 16be:000d
-97 LifeView FlyDVB-S /Acorp TV134DS 5168:0300, 4e42:0300
-98 Proteus Pro 2309 0919:2003
-99 AVerMedia TV Hybrid A16AR 1461:2c00
-100 Asus Europa2 OEM 1043:4860
-101 Pinnacle PCTV 310i 11bd:002f
-102 Avermedia AVerTV Studio 507 1461:9715
-103 Compro Videomate DVB-T200A
-104 Hauppauge WinTV-HVR1110 DVB-T/Hybrid 0070:6700, 0070:6701, 0070:6702, 0070:6703, 0070:6704, 0070:6705
-105 Terratec Cinergy HT PCMCIA 153b:1172
-106 Encore ENLTV 1131:2342, 1131:2341, 3016:2344
-107 Encore ENLTV-FM 1131:230f
-108 Terratec Cinergy HT PCI 153b:1175
-109 Philips Tiger - S Reference design
-110 Avermedia M102 1461:f31e
-111 ASUS P7131 4871 1043:4871
-112 ASUSTeK P7131 Hybrid 1043:4876
-113 Elitegroup ECS TVP3XP FM1246 Tuner Card (PAL,FM) 1019:4cb6
-114 KWorld DVB-T 210 17de:7250
-115 Sabrent PCMCIA TV-PCB05 0919:2003
-116 10MOONS TM300 TV Card 1131:2304
-117 Avermedia Super 007 1461:f01d
-118 Beholder BeholdTV 401 0000:4016
-119 Beholder BeholdTV 403 0000:4036
-120 Beholder BeholdTV 403 FM 0000:4037
-121 Beholder BeholdTV 405 0000:4050
-122 Beholder BeholdTV 405 FM 0000:4051
-123 Beholder BeholdTV 407 0000:4070
-124 Beholder BeholdTV 407 FM 0000:4071
-125 Beholder BeholdTV 409 0000:4090
-126 Beholder BeholdTV 505 FM 5ace:5050
-127 Beholder BeholdTV 507 FM / BeholdTV 509 FM 5ace:5070, 5ace:5090
-128 Beholder BeholdTV Columbus TV/FM 0000:5201
-129 Beholder BeholdTV 607 FM 5ace:6070
-130 Beholder BeholdTV M6 5ace:6190
-131 Twinhan Hybrid DTV-DVB 3056 PCI 1822:0022
-132 Genius TVGO AM11MCE
-133 NXP Snake DVB-S reference design
-134 Medion/Creatix CTX953 Hybrid 16be:0010
-135 MSI TV@nywhere A/D v1.1 1462:8625
-136 AVerMedia Cardbus TV/Radio (E506R) 1461:f436
-137 AVerMedia Hybrid TV/Radio (A16D) 1461:f936
-138 Avermedia M115 1461:a836
-139 Compro VideoMate T750 185b:c900
-140 Avermedia DVB-S Pro A700 1461:a7a1
-141 Avermedia DVB-S Hybrid+FM A700 1461:a7a2
-142 Beholder BeholdTV H6 5ace:6290
-143 Beholder BeholdTV M63 5ace:6191
-144 Beholder BeholdTV M6 Extra 5ace:6193
-145 AVerMedia MiniPCI DVB-T Hybrid M103 1461:f636, 1461:f736
-146 ASUSTeK P7131 Analog
-147 Asus Tiger 3in1 1043:4878
-148 Encore ENLTV-FM v5.3 1a7f:2008
-149 Avermedia PCI pure analog (M135A) 1461:f11d
-150 Zogis Real Angel 220
-151 ADS Tech Instant HDTV 1421:0380
-152 Asus Tiger Rev:1.00 1043:4857
-153 Kworld Plus TV Analog Lite PCI 17de:7128
-154 Avermedia AVerTV GO 007 FM Plus 1461:f31d
-155 Hauppauge WinTV-HVR1150 ATSC/QAM-Hybrid 0070:6706, 0070:6708
-156 Hauppauge WinTV-HVR1120 DVB-T/Hybrid 0070:6707, 0070:6709, 0070:670a
-157 Avermedia AVerTV Studio 507UA 1461:a11b
-158 AVerMedia Cardbus TV/Radio (E501R) 1461:b7e9
-159 Beholder BeholdTV 505 RDS 0000:505B
-160 Beholder BeholdTV 507 RDS 0000:5071
-161 Beholder BeholdTV 507 RDS 0000:507B
-162 Beholder BeholdTV 607 FM 5ace:6071
-163 Beholder BeholdTV 609 FM 5ace:6090
-164 Beholder BeholdTV 609 FM 5ace:6091
-165 Beholder BeholdTV 607 RDS 5ace:6072
-166 Beholder BeholdTV 607 RDS 5ace:6073
-167 Beholder BeholdTV 609 RDS 5ace:6092
-168 Beholder BeholdTV 609 RDS 5ace:6093
-169 Compro VideoMate S350/S300 185b:c900
-170 AverMedia AverTV Studio 505 1461:a115
-171 Beholder BeholdTV X7 5ace:7595
-172 RoverMedia TV Link Pro FM 19d1:0138
-173 Zolid Hybrid TV Tuner PCI 1131:2004
-174 Asus Europa Hybrid OEM 1043:4847
-175 Leadtek Winfast DTV1000S 107d:6655
-176 Beholder BeholdTV 505 RDS 0000:5051
-177 Hawell HW-404M7
-178 Beholder BeholdTV H7 5ace:7190
-179 Beholder BeholdTV A7 5ace:7090
-180 Avermedia PCI M733A 1461:4155, 1461:4255
-181 TechoTrend TT-budget T-3000 13c2:2804
-182 Kworld PCI SBTVD/ISDB-T Full-Seg Hybrid 17de:b136
-183 Compro VideoMate Vista M1F 185b:c900
-184 Encore ENLTV-FM 3 1a7f:2108
-185 MagicPro ProHDTV Pro2 DMB-TH/Hybrid 17de:d136
-186 Beholder BeholdTV 501 5ace:5010
-187 Beholder BeholdTV 503 FM 5ace:5030
-188 Sensoray 811/911 6000:0811, 6000:0911
-189 Kworld PC150-U 17de:a134
-190 Asus My Cinema PS3-100 1043:48cd
-191 Hawell HW-9004V1
-192 AverMedia AverTV Satellite Hybrid+FM A706 1461:2055
-193 WIS Voyager or compatible 1905:7007
-194 AverMedia AverTV/505 1461:a10a
-195 Leadtek Winfast TV2100 FM 107d:6f3a
-196 SnaZio* TVPVR PRO 1779:13cf
-=========== ======================================================= ================================================================
+.. tabularcolumns:: |p{1.4cm}|p{11.1cm}|p{4.2cm}|
+
+.. flat-table::
+ :header-rows: 1
+ :widths: 2 19 18
+ :stub-columns: 0
+
+ * - Card number
+ - Card name
+ - PCI IDs
+
+ * - 0
+ - UNKNOWN/GENERIC
+ -
+
+ * - 1
+ - Proteus Pro [philips reference design]
+ - 1131:2001, 1131:2001
+
+ * - 2
+ - LifeView FlyVIDEO3000
+ - 5168:0138, 4e42:0138
+
+ * - 3
+ - LifeView/Typhoon FlyVIDEO2000
+ - 5168:0138, 4e42:0138
+
+ * - 4
+ - EMPRESS
+ - 1131:6752
+
+ * - 5
+ - SKNet Monster TV
+ - 1131:4e85
+
+ * - 6
+ - Tevion MD 9717
+ -
+
+ * - 7
+ - KNC One TV-Station RDS / Typhoon TV Tuner RDS
+ - 1131:fe01, 1894:fe01
+
+ * - 8
+ - Terratec Cinergy 400 TV
+ - 153b:1142
+
+ * - 9
+ - Medion 5044
+ -
+
+ * - 10
+ - Kworld/KuroutoShikou SAA7130-TVPCI
+ -
+
+ * - 11
+ - Terratec Cinergy 600 TV
+ - 153b:1143
+
+ * - 12
+ - Medion 7134
+ - 16be:0003, 16be:5000
+
+ * - 13
+ - Typhoon TV+Radio 90031
+ -
+
+ * - 14
+ - ELSA EX-VISION 300TV
+ - 1048:226b
+
+ * - 15
+ - ELSA EX-VISION 500TV
+ - 1048:226a
+
+ * - 16
+ - ASUS TV-FM 7134
+ - 1043:4842, 1043:4830, 1043:4840
+
+ * - 17
+ - AOPEN VA1000 POWER
+ - 1131:7133
+
+ * - 18
+ - BMK MPEX No Tuner
+ -
+
+ * - 19
+ - Compro VideoMate TV
+ - 185b:c100
+
+ * - 20
+ - Matrox CronosPlus
+ - 102B:48d0
+
+ * - 21
+ - 10MOONS PCI TV CAPTURE CARD
+ - 1131:2001
+
+ * - 22
+ - AverMedia M156 / Medion 2819
+ - 1461:a70b
+
+ * - 23
+ - BMK MPEX Tuner
+ -
+
+ * - 24
+ - KNC One TV-Station DVR
+ - 1894:a006
+
+ * - 25
+ - ASUS TV-FM 7133
+ - 1043:4843
+
+ * - 26
+ - Pinnacle PCTV Stereo (saa7134)
+ - 11bd:002b
+
+ * - 27
+ - Manli MuchTV M-TV002
+ -
+
+ * - 28
+ - Manli MuchTV M-TV001
+ -
+
+ * - 29
+ - Nagase Sangyo TransGear 3000TV
+ - 1461:050c
+
+ * - 30
+ - Elitegroup ECS TVP3XP FM1216 Tuner Card(PAL-BG,FM)
+ - 1019:4cb4
+
+ * - 31
+ - Elitegroup ECS TVP3XP FM1236 Tuner Card (NTSC,FM)
+ - 1019:4cb5
+
+ * - 32
+ - AVACS SmartTV
+ -
+
+ * - 33
+ - AVerMedia DVD EZMaker
+ - 1461:10ff
+
+ * - 34
+ - Noval Prime TV 7133
+ -
+
+ * - 35
+ - AverMedia AverTV Studio 305
+ - 1461:2115
+
+ * - 36
+ - UPMOST PURPLE TV
+ - 12ab:0800
+
+ * - 37
+ - Items MuchTV Plus / IT-005
+ -
+
+ * - 38
+ - Terratec Cinergy 200 TV
+ - 153b:1152
+
+ * - 39
+ - LifeView FlyTV Platinum Mini
+ - 5168:0212, 4e42:0212, 5169:1502
+
+ * - 40
+ - Compro VideoMate TV PVR/FM
+ - 185b:c100
+
+ * - 41
+ - Compro VideoMate TV Gold+
+ - 185b:c100
+
+ * - 42
+ - Sabrent SBT-TVFM (saa7130)
+ -
+
+ * - 43
+ - :Zolid Xpert TV7134
+ -
+
+ * - 44
+ - Empire PCI TV-Radio LE
+ -
+
+ * - 45
+ - Avermedia AVerTV Studio 307
+ - 1461:9715
+
+ * - 46
+ - AVerMedia Cardbus TV/Radio (E500)
+ - 1461:d6ee
+
+ * - 47
+ - Terratec Cinergy 400 mobile
+ - 153b:1162
+
+ * - 48
+ - Terratec Cinergy 600 TV MK3
+ - 153b:1158
+
+ * - 49
+ - Compro VideoMate Gold+ Pal
+ - 185b:c200
+
+ * - 50
+ - Pinnacle PCTV 300i DVB-T + PAL
+ - 11bd:002d
+
+ * - 51
+ - ProVideo PV952
+ - 1540:9524
+
+ * - 52
+ - AverMedia AverTV/305
+ - 1461:2108
+
+ * - 53
+ - ASUS TV-FM 7135
+ - 1043:4845
+
+ * - 54
+ - LifeView FlyTV Platinum FM / Gold
+ - 5168:0214, 5168:5214, 1489:0214, 5168:0304
+
+ * - 55
+ - LifeView FlyDVB-T DUO / MSI TV@nywhere Duo
+ - 5168:0306, 4E42:0306
+
+ * - 56
+ - Avermedia AVerTV 307
+ - 1461:a70a
+
+ * - 57
+ - Avermedia AVerTV GO 007 FM
+ - 1461:f31f
+
+ * - 58
+ - ADS Tech Instant TV (saa7135)
+ - 1421:0350, 1421:0351, 1421:0370, 1421:1370
+
+ * - 59
+ - Kworld/Tevion V-Stream Xpert TV PVR7134
+ -
+
+ * - 60
+ - LifeView/Typhoon/Genius FlyDVB-T Duo Cardbus
+ - 5168:0502, 4e42:0502, 1489:0502
+
+ * - 61
+ - Philips TOUGH DVB-T reference design
+ - 1131:2004
+
+ * - 62
+ - Compro VideoMate TV Gold+II
+ -
+
+ * - 63
+ - Kworld Xpert TV PVR7134
+ -
+
+ * - 64
+ - FlyTV mini Asus Digimatrix
+ - 1043:0210
+
+ * - 65
+ - V-Stream Studio TV Terminator
+ -
+
+ * - 66
+ - Yuan TUN-900 (saa7135)
+ -
+
+ * - 67
+ - Beholder BeholdTV 409 FM
+ - 0000:4091
+
+ * - 68
+ - GoTView 7135 PCI
+ - 5456:7135
+
+ * - 69
+ - Philips EUROPA V3 reference design
+ - 1131:2004
+
+ * - 70
+ - Compro Videomate DVB-T300
+ - 185b:c900
+
+ * - 71
+ - Compro Videomate DVB-T200
+ - 185b:c901
+
+ * - 72
+ - RTD Embedded Technologies VFG7350
+ - 1435:7350
+
+ * - 73
+ - RTD Embedded Technologies VFG7330
+ - 1435:7330
+
+ * - 74
+ - LifeView FlyTV Platinum Mini2
+ - 14c0:1212
+
+ * - 75
+ - AVerMedia AVerTVHD MCE A180
+ - 1461:1044
+
+ * - 76
+ - SKNet MonsterTV Mobile
+ - 1131:4ee9
+
+ * - 77
+ - Pinnacle PCTV 40i/50i/110i (saa7133)
+ - 11bd:002e
+
+ * - 78
+ - ASUSTeK P7131 Dual
+ - 1043:4862
+
+ * - 79
+ - Sedna/MuchTV PC TV Cardbus TV/Radio (ITO25 Rev:2B)
+ -
+
+ * - 80
+ - ASUS Digimatrix TV
+ - 1043:0210
+
+ * - 81
+ - Philips Tiger reference design
+ - 1131:2018
+
+ * - 82
+ - MSI TV@Anywhere plus
+ - 1462:6231, 1462:8624
+
+ * - 83
+ - Terratec Cinergy 250 PCI TV
+ - 153b:1160
+
+ * - 84
+ - LifeView FlyDVB Trio
+ - 5168:0319
+
+ * - 85
+ - AverTV DVB-T 777
+ - 1461:2c05, 1461:2c05
+
+ * - 86
+ - LifeView FlyDVB-T / Genius VideoWonder DVB-T
+ - 5168:0301, 1489:0301
+
+ * - 87
+ - ADS Instant TV Duo Cardbus PTV331
+ - 0331:1421
+
+ * - 88
+ - Tevion/KWorld DVB-T 220RF
+ - 17de:7201
+
+ * - 89
+ - ELSA EX-VISION 700TV
+ - 1048:226c
+
+ * - 90
+ - Kworld ATSC110/115
+ - 17de:7350, 17de:7352
+
+ * - 91
+ - AVerMedia A169 B
+ - 1461:7360
+
+ * - 92
+ - AVerMedia A169 B1
+ - 1461:6360
+
+ * - 93
+ - Medion 7134 Bridge #2
+ - 16be:0005
+
+ * - 94
+ - LifeView FlyDVB-T Hybrid Cardbus/MSI TV @nywhere A/D NB
+ - 5168:3306, 5168:3502, 5168:3307, 4e42:3502
+
+ * - 95
+ - LifeView FlyVIDEO3000 (NTSC)
+ - 5169:0138
+
+ * - 96
+ - Medion Md8800 Quadro
+ - 16be:0007, 16be:0008, 16be:000d
+
+ * - 97
+ - LifeView FlyDVB-S /Acorp TV134DS
+ - 5168:0300, 4e42:0300
+
+ * - 98
+ - Proteus Pro 2309
+ - 0919:2003
+
+ * - 99
+ - AVerMedia TV Hybrid A16AR
+ - 1461:2c00
+
+ * - 100
+ - Asus Europa2 OEM
+ - 1043:4860
+
+ * - 101
+ - Pinnacle PCTV 310i
+ - 11bd:002f
+
+ * - 102
+ - Avermedia AVerTV Studio 507
+ - 1461:9715
+
+ * - 103
+ - Compro Videomate DVB-T200A
+ -
+
+ * - 104
+ - Hauppauge WinTV-HVR1110 DVB-T/Hybrid
+ - 0070:6700, 0070:6701, 0070:6702, 0070:6703, 0070:6704, 0070:6705
+
+ * - 105
+ - Terratec Cinergy HT PCMCIA
+ - 153b:1172
+
+ * - 106
+ - Encore ENLTV
+ - 1131:2342, 1131:2341, 3016:2344
+
+ * - 107
+ - Encore ENLTV-FM
+ - 1131:230f
+
+ * - 108
+ - Terratec Cinergy HT PCI
+ - 153b:1175
+
+ * - 109
+ - Philips Tiger - S Reference design
+ -
+
+ * - 110
+ - Avermedia M102
+ - 1461:f31e
+
+ * - 111
+ - ASUS P7131 4871
+ - 1043:4871
+
+ * - 112
+ - ASUSTeK P7131 Hybrid
+ - 1043:4876
+
+ * - 113
+ - Elitegroup ECS TVP3XP FM1246 Tuner Card (PAL,FM)
+ - 1019:4cb6
+
+ * - 114
+ - KWorld DVB-T 210
+ - 17de:7250
+
+ * - 115
+ - Sabrent PCMCIA TV-PCB05
+ - 0919:2003
+
+ * - 116
+ - 10MOONS TM300 TV Card
+ - 1131:2304
+
+ * - 117
+ - Avermedia Super 007
+ - 1461:f01d
+
+ * - 118
+ - Beholder BeholdTV 401
+ - 0000:4016
+
+ * - 119
+ - Beholder BeholdTV 403
+ - 0000:4036
+
+ * - 120
+ - Beholder BeholdTV 403 FM
+ - 0000:4037
+
+ * - 121
+ - Beholder BeholdTV 405
+ - 0000:4050
+
+ * - 122
+ - Beholder BeholdTV 405 FM
+ - 0000:4051
+
+ * - 123
+ - Beholder BeholdTV 407
+ - 0000:4070
+
+ * - 124
+ - Beholder BeholdTV 407 FM
+ - 0000:4071
+
+ * - 125
+ - Beholder BeholdTV 409
+ - 0000:4090
+
+ * - 126
+ - Beholder BeholdTV 505 FM
+ - 5ace:5050
+
+ * - 127
+ - Beholder BeholdTV 507 FM / BeholdTV 509 FM
+ - 5ace:5070, 5ace:5090
+
+ * - 128
+ - Beholder BeholdTV Columbus TV/FM
+ - 0000:5201
+
+ * - 129
+ - Beholder BeholdTV 607 FM
+ - 5ace:6070
+
+ * - 130
+ - Beholder BeholdTV M6
+ - 5ace:6190
+
+ * - 131
+ - Twinhan Hybrid DTV-DVB 3056 PCI
+ - 1822:0022
+
+ * - 132
+ - Genius TVGO AM11MCE
+ -
+
+ * - 133
+ - NXP Snake DVB-S reference design
+ -
+
+ * - 134
+ - Medion/Creatix CTX953 Hybrid
+ - 16be:0010
+
+ * - 135
+ - MSI TV@nywhere A/D v1.1
+ - 1462:8625
+
+ * - 136
+ - AVerMedia Cardbus TV/Radio (E506R)
+ - 1461:f436
+
+ * - 137
+ - AVerMedia Hybrid TV/Radio (A16D)
+ - 1461:f936
+
+ * - 138
+ - Avermedia M115
+ - 1461:a836
+
+ * - 139
+ - Compro VideoMate T750
+ - 185b:c900
+
+ * - 140
+ - Avermedia DVB-S Pro A700
+ - 1461:a7a1
+
+ * - 141
+ - Avermedia DVB-S Hybrid+FM A700
+ - 1461:a7a2
+
+ * - 142
+ - Beholder BeholdTV H6
+ - 5ace:6290
+
+ * - 143
+ - Beholder BeholdTV M63
+ - 5ace:6191
+
+ * - 144
+ - Beholder BeholdTV M6 Extra
+ - 5ace:6193
+
+ * - 145
+ - AVerMedia MiniPCI DVB-T Hybrid M103
+ - 1461:f636, 1461:f736
+
+ * - 146
+ - ASUSTeK P7131 Analog
+ -
+
+ * - 147
+ - Asus Tiger 3in1
+ - 1043:4878
+
+ * - 148
+ - Encore ENLTV-FM v5.3
+ - 1a7f:2008
+
+ * - 149
+ - Avermedia PCI pure analog (M135A)
+ - 1461:f11d
+
+ * - 150
+ - Zogis Real Angel 220
+ -
+
+ * - 151
+ - ADS Tech Instant HDTV
+ - 1421:0380
+
+ * - 152
+ - Asus Tiger Rev:1.00
+ - 1043:4857
+
+ * - 153
+ - Kworld Plus TV Analog Lite PCI
+ - 17de:7128
+
+ * - 154
+ - Avermedia AVerTV GO 007 FM Plus
+ - 1461:f31d
+
+ * - 155
+ - Hauppauge WinTV-HVR1150 ATSC/QAM-Hybrid
+ - 0070:6706, 0070:6708
+
+ * - 156
+ - Hauppauge WinTV-HVR1120 DVB-T/Hybrid
+ - 0070:6707, 0070:6709, 0070:670a
+
+ * - 157
+ - Avermedia AVerTV Studio 507UA
+ - 1461:a11b
+
+ * - 158
+ - AVerMedia Cardbus TV/Radio (E501R)
+ - 1461:b7e9
+
+ * - 159
+ - Beholder BeholdTV 505 RDS
+ - 0000:505B
+
+ * - 160
+ - Beholder BeholdTV 507 RDS
+ - 0000:5071
+
+ * - 161
+ - Beholder BeholdTV 507 RDS
+ - 0000:507B
+
+ * - 162
+ - Beholder BeholdTV 607 FM
+ - 5ace:6071
+
+ * - 163
+ - Beholder BeholdTV 609 FM
+ - 5ace:6090
+
+ * - 164
+ - Beholder BeholdTV 609 FM
+ - 5ace:6091
+
+ * - 165
+ - Beholder BeholdTV 607 RDS
+ - 5ace:6072
+
+ * - 166
+ - Beholder BeholdTV 607 RDS
+ - 5ace:6073
+
+ * - 167
+ - Beholder BeholdTV 609 RDS
+ - 5ace:6092
+
+ * - 168
+ - Beholder BeholdTV 609 RDS
+ - 5ace:6093
+
+ * - 169
+ - Compro VideoMate S350/S300
+ - 185b:c900
+
+ * - 170
+ - AverMedia AverTV Studio 505
+ - 1461:a115
+
+ * - 171
+ - Beholder BeholdTV X7
+ - 5ace:7595
+
+ * - 172
+ - RoverMedia TV Link Pro FM
+ - 19d1:0138
+
+ * - 173
+ - Zolid Hybrid TV Tuner PCI
+ - 1131:2004
+
+ * - 174
+ - Asus Europa Hybrid OEM
+ - 1043:4847
+
+ * - 175
+ - Leadtek Winfast DTV1000S
+ - 107d:6655
+
+ * - 176
+ - Beholder BeholdTV 505 RDS
+ - 0000:5051
+
+ * - 177
+ - Hawell HW-404M7
+ -
+
+ * - 178
+ - Beholder BeholdTV H7
+ - 5ace:7190
+
+ * - 179
+ - Beholder BeholdTV A7
+ - 5ace:7090
+
+ * - 180
+ - Avermedia PCI M733A
+ - 1461:4155, 1461:4255
+
+ * - 181
+ - TechoTrend TT-budget T-3000
+ - 13c2:2804
+
+ * - 182
+ - Kworld PCI SBTVD/ISDB-T Full-Seg Hybrid
+ - 17de:b136
+
+ * - 183
+ - Compro VideoMate Vista M1F
+ - 185b:c900
+
+ * - 184
+ - Encore ENLTV-FM 3
+ - 1a7f:2108
+
+ * - 185
+ - MagicPro ProHDTV Pro2 DMB-TH/Hybrid
+ - 17de:d136
+
+ * - 186
+ - Beholder BeholdTV 501
+ - 5ace:5010
+
+ * - 187
+ - Beholder BeholdTV 503 FM
+ - 5ace:5030
+
+ * - 188
+ - Sensoray 811/911
+ - 6000:0811, 6000:0911
+
+ * - 189
+ - Kworld PC150-U
+ - 17de:a134
+
+ * - 190
+ - Asus My Cinema PS3-100
+ - 1043:48cd
+
+ * - 191
+ - Hawell HW-9004V1
+ -
+
+ * - 192
+ - AverMedia AverTV Satellite Hybrid+FM A706
+ - 1461:2055
+
+ * - 193
+ - WIS Voyager or compatible
+ - 1905:7007
+
+ * - 194
+ - AverMedia AverTV/505
+ - 1461:a10a
+
+ * - 195
+ - Leadtek Winfast TV2100 FM
+ - 107d:6f3a
+
+ * - 196
+ - SnaZio* TVPVR PRO
+ - 1779:13cf
diff --git a/Documentation/media/v4l-drivers/saa7164-cardlist.rst b/Documentation/media/v4l-drivers/saa7164-cardlist.rst
index 7d17d38df3bc..e28382ba82e6 100644
--- a/Documentation/media/v4l-drivers/saa7164-cardlist.rst
+++ b/Documentation/media/v4l-drivers/saa7164-cardlist.rst
@@ -1,21 +1,69 @@
SAA7164 cards list
==================
-=========== ==================================== ====================
-Card number Card name PCI IDs
-=========== ==================================== ====================
-0 Unknown
-1 Generic Rev2
-2 Generic Rev3
-3 Hauppauge WinTV-HVR2250 0070:8880, 0070:8810
-4 Hauppauge WinTV-HVR2200 0070:8980
-5 Hauppauge WinTV-HVR2200 0070:8900
-6 Hauppauge WinTV-HVR2200 0070:8901
-7 Hauppauge WinTV-HVR2250 0070:8891, 0070:8851
-8 Hauppauge WinTV-HVR2250 0070:88A1
-9 Hauppauge WinTV-HVR2200 0070:8940
-10 Hauppauge WinTV-HVR2200 0070:8953
-11 Hauppauge WinTV-HVR2255(proto) 0070:f111
-12 Hauppauge WinTV-HVR2255 0070:f111
-13 Hauppauge WinTV-HVR2205 0070:f123, 0070:f120
-=========== ==================================== ====================
+.. tabularcolumns:: |p{1.4cm}|p{11.1cm}|p{4.2cm}|
+
+.. flat-table::
+ :header-rows: 1
+ :widths: 2 19 18
+ :stub-columns: 0
+
+ * - Card number
+ - Card name
+ - PCI IDs
+
+ * - 0
+ - Unknown
+ -
+
+ * - 1
+ - Generic Rev2
+ -
+
+ * - 2
+ - Generic Rev3
+ -
+
+ * - 3
+ - Hauppauge WinTV-HVR2250
+ - 0070:8880, 0070:8810
+
+ * - 4
+ - Hauppauge WinTV-HVR2200
+ - 0070:8980
+
+ * - 5
+ - Hauppauge WinTV-HVR2200
+ - 0070:8900
+
+ * - 6
+ - Hauppauge WinTV-HVR2200
+ - 0070:8901
+
+ * - 7
+ - Hauppauge WinTV-HVR2250
+ - 0070:8891, 0070:8851
+
+ * - 8
+ - Hauppauge WinTV-HVR2250
+ - 0070:88A1
+
+ * - 9
+ - Hauppauge WinTV-HVR2200
+ - 0070:8940
+
+ * - 10
+ - Hauppauge WinTV-HVR2200
+ - 0070:8953
+
+ * - 11
+ - Hauppauge WinTV-HVR2255(proto)
+ - 0070:f111
+
+ * - 12
+ - Hauppauge WinTV-HVR2255
+ - 0070:f111
+
+ * - 13
+ - Hauppauge WinTV-HVR2205
+ - 0070:f123, 0070:f120
diff --git a/Documentation/media/v4l-drivers/tm6000-cardlist.rst b/Documentation/media/v4l-drivers/tm6000-cardlist.rst
index ae2952683ccf..6bd083544457 100644
--- a/Documentation/media/v4l-drivers/tm6000-cardlist.rst
+++ b/Documentation/media/v4l-drivers/tm6000-cardlist.rst
@@ -1,24 +1,81 @@
TM6000 cards list
=================
-=========== ================================================= ==========================================
-Card number Card name USB IDs
-=========== ================================================= ==========================================
-0 Unknown tm6000 video grabber
-1 Generic tm5600 board 6000:0001
-2 Generic tm6000 board
-3 Generic tm6010 board 6000:0002
-4 10Moons UT 821
-5 10Moons UT 330
-6 ADSTECH Dual TV USB 06e1:f332
-7 Freecom Hybrid Stick / Moka DVB-T Receiver Dual 14aa:0620
-8 ADSTECH Mini Dual TV USB 06e1:b339
-9 Hauppauge WinTV HVR-900H / WinTV USB2-Stick 2040:6600, 2040:6601, 2040:6610, 2040:6611
-10 Beholder Wander DVB-T/TV/FM USB2.0 6000:dec0
-11 Beholder Voyager TV/FM USB2.0 6000:dec1
-12 Terratec Cinergy Hybrid XE / Cinergy Hybrid-Stick 0ccd:0086, 0ccd:00A5
-13 Twinhan TU501(704D1) 13d3:3240, 13d3:3241, 13d3:3243, 13d3:3264
-14 Beholder Wander Lite DVB-T/TV/FM USB2.0 6000:dec2
-15 Beholder Voyager Lite TV/FM USB2.0 6000:dec3
-16 Terratec Grabster AV 150/250 MX 0ccd:0079
-=========== ================================================= ==========================================
+.. tabularcolumns:: |p{1.4cm}|p{11.1cm}|p{4.2cm}|
+
+.. flat-table::
+ :header-rows: 1
+ :widths: 2 19 18
+ :stub-columns: 0
+
+ * - Card number
+ - Card name
+ - USB IDs
+
+ * - 0
+ - Unknown tm6000 video grabber
+ -
+
+ * - 1
+ - Generic tm5600 board
+ - 6000:0001
+
+ * - 2
+ - Generic tm6000 board
+ -
+
+ * - 3
+ - Generic tm6010 board
+ - 6000:0002
+
+ * - 4
+ - 10Moons UT 821
+ -
+
+ * - 5
+ - 10Moons UT 330
+ -
+
+ * - 6
+ - ADSTECH Dual TV USB
+ - 06e1:f332
+
+ * - 7
+ - Freecom Hybrid Stick / Moka DVB-T Receiver Dual
+ - 14aa:0620
+
+ * - 8
+ - ADSTECH Mini Dual TV USB
+ - 06e1:b339
+
+ * - 9
+ - Hauppauge WinTV HVR-900H / WinTV USB2-Stick
+ - 2040:6600, 2040:6601, 2040:6610, 2040:6611
+
+ * - 10
+ - Beholder Wander DVB-T/TV/FM USB2.0
+ - 6000:dec0
+
+ * - 11
+ - Beholder Voyager TV/FM USB2.0
+ - 6000:dec1
+
+ * - 12
+ - Terratec Cinergy Hybrid XE / Cinergy Hybrid-Stick
+ - 0ccd:0086, 0ccd:00A5
+
+ * - 13
+ - Twinhan TU501(704D1)
+ - 13d3:3240, 13d3:3241, 13d3:3243, 13d3:3264
+
+ * - 14
+ - Beholder Wander Lite DVB-T/TV/FM USB2.0
+ - 6000:dec2
+
+ * - 15
+ - Beholder Voyager Lite TV/FM USB2.0
+ - 6000:dec3
+
+ * - 16
+ - Terratec Grabster AV 150/250 MX
+ - 0ccd:0079
diff --git a/Documentation/media/v4l-drivers/usbvision-cardlist.rst b/Documentation/media/v4l-drivers/usbvision-cardlist.rst
index 44d53dff0984..5a8ffbfc204e 100644
--- a/Documentation/media/v4l-drivers/usbvision-cardlist.rst
+++ b/Documentation/media/v4l-drivers/usbvision-cardlist.rst
@@ -1,74 +1,281 @@
USBvision cards list
====================
-=========== ======================================================== =========
-Card number Card name USB IDs
-=========== ======================================================== =========
-0 Xanboo 0a6f:0400
-1 Belkin USB VideoBus II Adapter 050d:0106
-2 Belkin Components USB VideoBus 050d:0207
-3 Belkin USB VideoBus II 050d:0208
-4 echoFX InterView Lite 0571:0002
-5 USBGear USBG-V1 resp. HAMA USB 0573:0003
-6 D-Link V100 0573:0400
-7 X10 USB Camera 0573:2000
-8 Hauppauge WinTV USB Live (PAL B/G) 0573:2d00
-9 Hauppauge WinTV USB Live Pro (NTSC M/N) 0573:2d01
-10 Zoran Co. PMD (Nogatech) AV-grabber Manhattan 0573:2101
-11 Nogatech USB-TV (NTSC) FM 0573:4100
-12 PNY USB-TV (NTSC) FM 0573:4110
-13 PixelView PlayTv-USB PRO (PAL) FM 0573:4450
-14 ZTV ZT-721 2.4GHz USB A/V Receiver 0573:4550
-15 Hauppauge WinTV USB (NTSC M/N) 0573:4d00
-16 Hauppauge WinTV USB (PAL B/G) 0573:4d01
-17 Hauppauge WinTV USB (PAL I) 0573:4d02
-18 Hauppauge WinTV USB (PAL/SECAM L) 0573:4d03
-19 Hauppauge WinTV USB (PAL D/K) 0573:4d04
-20 Hauppauge WinTV USB (NTSC FM) 0573:4d10
-21 Hauppauge WinTV USB (PAL B/G FM) 0573:4d11
-22 Hauppauge WinTV USB (PAL I FM) 0573:4d12
-23 Hauppauge WinTV USB (PAL D/K FM) 0573:4d14
-24 Hauppauge WinTV USB Pro (NTSC M/N) 0573:4d2a
-25 Hauppauge WinTV USB Pro (NTSC M/N) V2 0573:4d2b
-26 Hauppauge WinTV USB Pro (PAL/SECAM B/G/I/D/K/L) 0573:4d2c
-27 Hauppauge WinTV USB Pro (NTSC M/N) V3 0573:4d20
-28 Hauppauge WinTV USB Pro (PAL B/G) 0573:4d21
-29 Hauppauge WinTV USB Pro (PAL I) 0573:4d22
-30 Hauppauge WinTV USB Pro (PAL/SECAM L) 0573:4d23
-31 Hauppauge WinTV USB Pro (PAL D/K) 0573:4d24
-32 Hauppauge WinTV USB Pro (PAL/SECAM BGDK/I/L) 0573:4d25
-33 Hauppauge WinTV USB Pro (PAL/SECAM BGDK/I/L) V2 0573:4d26
-34 Hauppauge WinTV USB Pro (PAL B/G) V2 0573:4d27
-35 Hauppauge WinTV USB Pro (PAL B/G,D/K) 0573:4d28
-36 Hauppauge WinTV USB Pro (PAL I,D/K) 0573:4d29
-37 Hauppauge WinTV USB Pro (NTSC M/N FM) 0573:4d30
-38 Hauppauge WinTV USB Pro (PAL B/G FM) 0573:4d31
-39 Hauppauge WinTV USB Pro (PAL I FM) 0573:4d32
-40 Hauppauge WinTV USB Pro (PAL D/K FM) 0573:4d34
-41 Hauppauge WinTV USB Pro (Temic PAL/SECAM B/G/I/D/K/L FM) 0573:4d35
-42 Hauppauge WinTV USB Pro (Temic PAL B/G FM) 0573:4d36
-43 Hauppauge WinTV USB Pro (PAL/SECAM B/G/I/D/K/L FM) 0573:4d37
-44 Hauppauge WinTV USB Pro (NTSC M/N FM) V2 0573:4d38
-45 Camtel Technology USB TV Genie Pro FM Model TVB330 0768:0006
-46 Digital Video Creator I 07d0:0001
-47 Global Village GV-007 (NTSC) 07d0:0002
-48 Dazzle Fusion Model DVC-50 Rev 1 (NTSC) 07d0:0003
-49 Dazzle Fusion Model DVC-80 Rev 1 (PAL) 07d0:0004
-50 Dazzle Fusion Model DVC-90 Rev 1 (SECAM) 07d0:0005
-51 Eskape Labs MyTV2Go 07f8:9104
-52 Pinnacle Studio PCTV USB (PAL) 2304:010d
-53 Pinnacle Studio PCTV USB (SECAM) 2304:0109
-54 Pinnacle Studio PCTV USB (PAL) FM 2304:0110
-55 Miro PCTV USB 2304:0111
-56 Pinnacle Studio PCTV USB (NTSC) FM 2304:0112
-57 Pinnacle Studio PCTV USB (PAL) FM V2 2304:0210
-58 Pinnacle Studio PCTV USB (NTSC) FM V2 2304:0212
-59 Pinnacle Studio PCTV USB (PAL) FM V3 2304:0214
-60 Pinnacle Studio Linx Video input cable (NTSC) 2304:0300
-61 Pinnacle Studio Linx Video input cable (PAL) 2304:0301
-62 Pinnacle PCTV Bungee USB (PAL) FM 2304:0419
-63 Hauppauge WinTv-USB 2400:4200
-64 Pinnacle Studio PCTV USB (NTSC) FM V3 2304:0113
-65 Nogatech USB MicroCam NTSC (NV3000N) 0573:3000
-66 Nogatech USB MicroCam PAL (NV3001P) 0573:3001
-=========== ======================================================== =========
+.. tabularcolumns:: |p{1.4cm}|p{11.1cm}|p{4.2cm}|
+
+.. flat-table::
+ :header-rows: 1
+ :widths: 2 19 18
+ :stub-columns: 0
+
+ * - Card number
+ - Card name
+ - USB IDs
+
+ * - 0
+ - Xanboo
+ - 0a6f:0400
+
+ * - 1
+ - Belkin USB VideoBus II Adapter
+ - 050d:0106
+
+ * - 2
+ - Belkin Components USB VideoBus
+ - 050d:0207
+
+ * - 3
+ - Belkin USB VideoBus II
+ - 050d:0208
+
+ * - 4
+ - echoFX InterView Lite
+ - 0571:0002
+
+ * - 5
+ - USBGear USBG-V1 resp. HAMA USB
+ - 0573:0003
+
+ * - 6
+ - D-Link V100
+ - 0573:0400
+
+ * - 7
+ - X10 USB Camera
+ - 0573:2000
+
+ * - 8
+ - Hauppauge WinTV USB Live (PAL B/G)
+ - 0573:2d00
+
+ * - 9
+ - Hauppauge WinTV USB Live Pro (NTSC M/N)
+ - 0573:2d01
+
+ * - 10
+ - Zoran Co. PMD (Nogatech) AV-grabber Manhattan
+ - 0573:2101
+
+ * - 11
+ - Nogatech USB-TV (NTSC) FM
+ - 0573:4100
+
+ * - 12
+ - PNY USB-TV (NTSC) FM
+ - 0573:4110
+
+ * - 13
+ - PixelView PlayTv-USB PRO (PAL) FM
+ - 0573:4450
+
+ * - 14
+ - ZTV ZT-721 2.4GHz USB A/V Receiver
+ - 0573:4550
+
+ * - 15
+ - Hauppauge WinTV USB (NTSC M/N)
+ - 0573:4d00
+
+ * - 16
+ - Hauppauge WinTV USB (PAL B/G)
+ - 0573:4d01
+
+ * - 17
+ - Hauppauge WinTV USB (PAL I)
+ - 0573:4d02
+
+ * - 18
+ - Hauppauge WinTV USB (PAL/SECAM L)
+ - 0573:4d03
+
+ * - 19
+ - Hauppauge WinTV USB (PAL D/K)
+ - 0573:4d04
+
+ * - 20
+ - Hauppauge WinTV USB (NTSC FM)
+ - 0573:4d10
+
+ * - 21
+ - Hauppauge WinTV USB (PAL B/G FM)
+ - 0573:4d11
+
+ * - 22
+ - Hauppauge WinTV USB (PAL I FM)
+ - 0573:4d12
+
+ * - 23
+ - Hauppauge WinTV USB (PAL D/K FM)
+ - 0573:4d14
+
+ * - 24
+ - Hauppauge WinTV USB Pro (NTSC M/N)
+ - 0573:4d2a
+
+ * - 25
+ - Hauppauge WinTV USB Pro (NTSC M/N) V2
+ - 0573:4d2b
+
+ * - 26
+ - Hauppauge WinTV USB Pro (PAL/SECAM B/G/I/D/K/L)
+ - 0573:4d2c
+
+ * - 27
+ - Hauppauge WinTV USB Pro (NTSC M/N) V3
+ - 0573:4d20
+
+ * - 28
+ - Hauppauge WinTV USB Pro (PAL B/G)
+ - 0573:4d21
+
+ * - 29
+ - Hauppauge WinTV USB Pro (PAL I)
+ - 0573:4d22
+
+ * - 30
+ - Hauppauge WinTV USB Pro (PAL/SECAM L)
+ - 0573:4d23
+
+ * - 31
+ - Hauppauge WinTV USB Pro (PAL D/K)
+ - 0573:4d24
+
+ * - 32
+ - Hauppauge WinTV USB Pro (PAL/SECAM BGDK/I/L)
+ - 0573:4d25
+
+ * - 33
+ - Hauppauge WinTV USB Pro (PAL/SECAM BGDK/I/L) V2
+ - 0573:4d26
+
+ * - 34
+ - Hauppauge WinTV USB Pro (PAL B/G) V2
+ - 0573:4d27
+
+ * - 35
+ - Hauppauge WinTV USB Pro (PAL B/G,D/K)
+ - 0573:4d28
+
+ * - 36
+ - Hauppauge WinTV USB Pro (PAL I,D/K)
+ - 0573:4d29
+
+ * - 37
+ - Hauppauge WinTV USB Pro (NTSC M/N FM)
+ - 0573:4d30
+
+ * - 38
+ - Hauppauge WinTV USB Pro (PAL B/G FM)
+ - 0573:4d31
+
+ * - 39
+ - Hauppauge WinTV USB Pro (PAL I FM)
+ - 0573:4d32
+
+ * - 40
+ - Hauppauge WinTV USB Pro (PAL D/K FM)
+ - 0573:4d34
+
+ * - 41
+ - Hauppauge WinTV USB Pro (Temic PAL/SECAM B/G/I/D/K/L FM)
+ - 0573:4d35
+
+ * - 42
+ - Hauppauge WinTV USB Pro (Temic PAL B/G FM)
+ - 0573:4d36
+
+ * - 43
+ - Hauppauge WinTV USB Pro (PAL/SECAM B/G/I/D/K/L FM)
+ - 0573:4d37
+
+ * - 44
+ - Hauppauge WinTV USB Pro (NTSC M/N FM) V2
+ - 0573:4d38
+
+ * - 45
+ - Camtel Technology USB TV Genie Pro FM Model TVB330
+ - 0768:0006
+
+ * - 46
+ - Digital Video Creator I
+ - 07d0:0001
+
+ * - 47
+ - Global Village GV-007 (NTSC)
+ - 07d0:0002
+
+ * - 48
+ - Dazzle Fusion Model DVC-50 Rev 1 (NTSC)
+ - 07d0:0003
+
+ * - 49
+ - Dazzle Fusion Model DVC-80 Rev 1 (PAL)
+ - 07d0:0004
+
+ * - 50
+ - Dazzle Fusion Model DVC-90 Rev 1 (SECAM)
+ - 07d0:0005
+
+ * - 51
+ - Eskape Labs MyTV2Go
+ - 07f8:9104
+
+ * - 52
+ - Pinnacle Studio PCTV USB (PAL)
+ - 2304:010d
+
+ * - 53
+ - Pinnacle Studio PCTV USB (SECAM)
+ - 2304:0109
+
+ * - 54
+ - Pinnacle Studio PCTV USB (PAL) FM
+ - 2304:0110
+
+ * - 55
+ - Miro PCTV USB
+ - 2304:0111
+
+ * - 56
+ - Pinnacle Studio PCTV USB (NTSC) FM
+ - 2304:0112
+
+ * - 57
+ - Pinnacle Studio PCTV USB (PAL) FM V2
+ - 2304:0210
+
+ * - 58
+ - Pinnacle Studio PCTV USB (NTSC) FM V2
+ - 2304:0212
+
+ * - 59
+ - Pinnacle Studio PCTV USB (PAL) FM V3
+ - 2304:0214
+
+ * - 60
+ - Pinnacle Studio Linx Video input cable (NTSC)
+ - 2304:0300
+
+ * - 61
+ - Pinnacle Studio Linx Video input cable (PAL)
+ - 2304:0301
+
+ * - 62
+ - Pinnacle PCTV Bungee USB (PAL) FM
+ - 2304:0419
+
+ * - 63
+ - Hauppauge WinTv-USB
+ - 2400:4200
+
+ * - 64
+ - Pinnacle Studio PCTV USB (NTSC) FM V3
+ - 2304:0113
+
+ * - 65
+ - Nogatech USB MicroCam NTSC (NV3000N)
+ - 0573:3000
+
+ * - 66
+ - Nogatech USB MicroCam PAL (NV3001P)
+ - 0573:3001
diff --git a/Documentation/media/v4l-drivers/vivid.rst b/Documentation/media/v4l-drivers/vivid.rst
index 3e44b2217f2d..089595ce11c5 100644
--- a/Documentation/media/v4l-drivers/vivid.rst
+++ b/Documentation/media/v4l-drivers/vivid.rst
@@ -829,6 +829,7 @@ The following two controls are only valid for video and vbi capture.
The following two controls are only valid for video capture.
- DV Timings Signal Mode:
+
selects the behavior of VIDIOC_QUERY_DV_TIMINGS: what
should it return?
diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt
index 732f10ea382e..b759a60624fd 100644
--- a/Documentation/memory-barriers.txt
+++ b/Documentation/memory-barriers.txt
@@ -27,7 +27,7 @@ The purpose of this document is twofold:
(2) to provide a guide as to how to use the barriers that are available.
Note that an architecture can provide more than the minimum requirement
-for any particular barrier, but if the architecure provides less than
+for any particular barrier, but if the architecture provides less than
that, that architecture is incorrect.
Note also that it is possible that a barrier may be a no-op for an
@@ -498,8 +498,8 @@ And a couple of implicit varieties:
This means that ACQUIRE acts as a minimal "acquire" operation and
RELEASE acts as a minimal "release" operation.
-A subset of the atomic operations described in atomic_ops.txt have ACQUIRE
-and RELEASE variants in addition to fully-ordered and relaxed (no barrier
+A subset of the atomic operations described in atomic_t.txt have ACQUIRE and
+RELEASE variants in addition to fully-ordered and relaxed (no barrier
semantics) definitions. For compound atomics performing both a load and a
store, ACQUIRE semantics apply only to the load and RELEASE semantics apply
only to the store portion of the operation.
@@ -594,7 +594,24 @@ between the address load and the data load:
This enforces the occurrence of one of the two implications, and prevents the
third possibility from arising.
-A data-dependency barrier must also order against dependent writes:
+
+[!] Note that this extremely counterintuitive situation arises most easily on
+machines with split caches, so that, for example, one cache bank processes
+even-numbered cache lines and the other bank processes odd-numbered cache
+lines. The pointer P might be stored in an odd-numbered cache line, and the
+variable B might be stored in an even-numbered cache line. Then, if the
+even-numbered bank of the reading CPU's cache is extremely busy while the
+odd-numbered bank is idle, one can see the new value of the pointer P (&B),
+but the old value of the variable B (2).
+
+
+A data-dependency barrier is not required to order dependent writes
+because the CPUs that the Linux kernel supports don't do writes
+until they are certain (1) that the write will actually happen, (2)
+of the location of the write, and (3) of the value to be written.
+But please carefully read the "CONTROL DEPENDENCIES" section and the
+Documentation/RCU/rcu_dereference.txt file: The compiler can and does
+break dependencies in a great many highly creative ways.
CPU 1 CPU 2
=============== ===============
@@ -603,29 +620,19 @@ A data-dependency barrier must also order against dependent writes:
<write barrier>
WRITE_ONCE(P, &B);
Q = READ_ONCE(P);
- <data dependency barrier>
- *Q = 5;
+ WRITE_ONCE(*Q, 5);
-The data-dependency barrier must order the read into Q with the store
-into *Q. This prohibits this outcome:
+Therefore, no data-dependency barrier is required to order the read into
+Q with the store into *Q. In other words, this outcome is prohibited,
+even without a data-dependency barrier:
(Q == &B) && (B == 4)
Please note that this pattern should be rare. After all, the whole point
of dependency ordering is to -prevent- writes to the data structure, along
with the expensive cache misses associated with those writes. This pattern
-can be used to record rare error conditions and the like, and the ordering
-prevents such records from being lost.
-
-
-[!] Note that this extremely counterintuitive situation arises most easily on
-machines with split caches, so that, for example, one cache bank processes
-even-numbered cache lines and the other bank processes odd-numbered cache
-lines. The pointer P might be stored in an odd-numbered cache line, and the
-variable B might be stored in an even-numbered cache line. Then, if the
-even-numbered bank of the reading CPU's cache is extremely busy while the
-odd-numbered bank is idle, one can see the new value of the pointer P (&B),
-but the old value of the variable B (2).
+can be used to record rare error conditions and the like, and the CPUs'
+naturally occurring ordering prevents such records from being lost.
The data dependency barrier is very important to the RCU system,
@@ -1876,8 +1883,7 @@ There are some more advanced barrier functions:
This makes sure that the death mark on the object is perceived to be set
*before* the reference counter is decremented.
- See Documentation/atomic_ops.txt for more information. See the "Atomic
- operations" subsection for information on where to use these.
+ See Documentation/atomic_{t,bitops}.txt for more information.
(*) lockless_dereference();
@@ -1982,10 +1988,7 @@ for each construct. These operations all imply certain barriers:
ACQUIRE operation has completed.
Memory operations issued before the ACQUIRE may be completed after
- the ACQUIRE operation has completed. An smp_mb__before_spinlock(),
- combined with a following ACQUIRE, orders prior stores against
- subsequent loads and stores. Note that this is weaker than smp_mb()!
- The smp_mb__before_spinlock() primitive is free on many architectures.
+ the ACQUIRE operation has completed.
(2) RELEASE operation implication:
@@ -2503,88 +2506,7 @@ operations are noted specially as some of them imply full memory barriers and
some don't, but they're very heavily relied on as a group throughout the
kernel.
-Any atomic operation that modifies some state in memory and returns information
-about the state (old or new) implies an SMP-conditional general memory barrier
-(smp_mb()) on each side of the actual operation (with the exception of
-explicit lock operations, described later). These include:
-
- xchg();
- atomic_xchg(); atomic_long_xchg();
- atomic_inc_return(); atomic_long_inc_return();
- atomic_dec_return(); atomic_long_dec_return();
- atomic_add_return(); atomic_long_add_return();
- atomic_sub_return(); atomic_long_sub_return();
- atomic_inc_and_test(); atomic_long_inc_and_test();
- atomic_dec_and_test(); atomic_long_dec_and_test();
- atomic_sub_and_test(); atomic_long_sub_and_test();
- atomic_add_negative(); atomic_long_add_negative();
- test_and_set_bit();
- test_and_clear_bit();
- test_and_change_bit();
-
- /* when succeeds */
- cmpxchg();
- atomic_cmpxchg(); atomic_long_cmpxchg();
- atomic_add_unless(); atomic_long_add_unless();
-
-These are used for such things as implementing ACQUIRE-class and RELEASE-class
-operations and adjusting reference counters towards object destruction, and as
-such the implicit memory barrier effects are necessary.
-
-
-The following operations are potential problems as they do _not_ imply memory
-barriers, but might be used for implementing such things as RELEASE-class
-operations:
-
- atomic_set();
- set_bit();
- clear_bit();
- change_bit();
-
-With these the appropriate explicit memory barrier should be used if necessary
-(smp_mb__before_atomic() for instance).
-
-
-The following also do _not_ imply memory barriers, and so may require explicit
-memory barriers under some circumstances (smp_mb__before_atomic() for
-instance):
-
- atomic_add();
- atomic_sub();
- atomic_inc();
- atomic_dec();
-
-If they're used for statistics generation, then they probably don't need memory
-barriers, unless there's a coupling between statistical data.
-
-If they're used for reference counting on an object to control its lifetime,
-they probably don't need memory barriers because either the reference count
-will be adjusted inside a locked section, or the caller will already hold
-sufficient references to make the lock, and thus a memory barrier unnecessary.
-
-If they're used for constructing a lock of some description, then they probably
-do need memory barriers as a lock primitive generally has to do things in a
-specific order.
-
-Basically, each usage case has to be carefully considered as to whether memory
-barriers are needed or not.
-
-The following operations are special locking primitives:
-
- test_and_set_bit_lock();
- clear_bit_unlock();
- __clear_bit_unlock();
-
-These implement ACQUIRE-class and RELEASE-class operations. These should be
-used in preference to other operations when implementing locking primitives,
-because their implementations can be optimised on many architectures.
-
-[!] Note that special memory barrier primitives are available for these
-situations because on some CPUs the atomic instructions used imply full memory
-barriers, and so barrier instructions are superfluous in conjunction with them,
-and in such cases the special barrier primitives will be no-ops.
-
-See Documentation/atomic_ops.txt for more information.
+See Documentation/atomic_t.txt for more information.
ACCESSING DEVICES
diff --git a/Documentation/memory-hotplug.txt b/Documentation/memory-hotplug.txt
index 670f3ded0802..7f49ebf3ddb2 100644
--- a/Documentation/memory-hotplug.txt
+++ b/Documentation/memory-hotplug.txt
@@ -2,43 +2,48 @@
Memory Hotplug
==============
-Created: Jul 28 2007
-Add description of notifier of memory hotplug Oct 11 2007
+:Created: Jul 28 2007
+:Updated: Add description of notifier of memory hotplug: Oct 11 2007
This document is about memory hotplug including how-to-use and current status.
Because Memory Hotplug is still under development, contents of this text will
be changed often.
-1. Introduction
- 1.1 purpose of memory hotplug
- 1.2. Phases of memory hotplug
- 1.3. Unit of Memory online/offline operation
-2. Kernel Configuration
-3. sysfs files for memory hotplug
-4. Physical memory hot-add phase
- 4.1 Hardware(Firmware) Support
- 4.2 Notify memory hot-add event by hand
-5. Logical Memory hot-add phase
- 5.1. State of memory
- 5.2. How to online memory
-6. Logical memory remove
- 6.1 Memory offline and ZONE_MOVABLE
- 6.2. How to offline memory
-7. Physical memory remove
-8. Memory hotplug event notifier
-9. Future Work List
-
-Note(1): x86_64's has special implementation for memory hotplug.
- This text does not describe it.
-Note(2): This text assumes that sysfs is mounted at /sys.
+.. CONTENTS
+ 1. Introduction
+ 1.1 purpose of memory hotplug
+ 1.2. Phases of memory hotplug
+ 1.3. Unit of Memory online/offline operation
+ 2. Kernel Configuration
+ 3. sysfs files for memory hotplug
+ 4. Physical memory hot-add phase
+ 4.1 Hardware(Firmware) Support
+ 4.2 Notify memory hot-add event by hand
+ 5. Logical Memory hot-add phase
+ 5.1. State of memory
+ 5.2. How to online memory
+ 6. Logical memory remove
+ 6.1 Memory offline and ZONE_MOVABLE
+ 6.2. How to offline memory
+ 7. Physical memory remove
+ 8. Memory hotplug event notifier
+ 9. Future Work List
----------------
-1. Introduction
----------------
-1.1 purpose of memory hotplug
-------------
+.. note::
+
+ (1) x86_64's has special implementation for memory hotplug.
+ This text does not describe it.
+ (2) This text assumes that sysfs is mounted at /sys.
+
+
+Introduction
+============
+
+purpose of memory hotplug
+-------------------------
+
Memory Hotplug allows users to increase/decrease the amount of memory.
Generally, there are two purposes.
@@ -53,9 +58,11 @@ hardware which supports memory power management.
Linux memory hotplug is designed for both purpose.
-1.2. Phases of memory hotplug
----------------
-There are 2 phases in Memory Hotplug.
+Phases of memory hotplug
+------------------------
+
+There are 2 phases in Memory Hotplug:
+
1) Physical Memory Hotplug phase
2) Logical Memory Hotplug phase.
@@ -70,7 +77,7 @@ management tables, and makes sysfs files for new memory's operation.
If firmware supports notification of connection of new memory to OS,
this phase is triggered automatically. ACPI can notify this event. If not,
"probe" operation by system administration is used instead.
-(see Section 4.).
+(see :ref:`memory_hotplug_physical_mem`).
Logical Memory Hotplug phase is to change memory state into
available/unavailable for users. Amount of memory from user's view is
@@ -83,11 +90,12 @@ Logical Memory Hotplug phase is triggered by write of sysfs file by system
administrator. For the hot-add case, it must be executed after Physical Hotplug
phase by hand.
(However, if you writes udev's hotplug scripts for memory hotplug, these
- phases can be execute in seamless way.)
+phases can be execute in seamless way.)
-1.3. Unit of Memory online/offline operation
-------------
+Unit of Memory online/offline operation
+---------------------------------------
+
Memory hotplug uses SPARSEMEM memory model which allows memory to be divided
into chunks of the same size. These chunks are called "sections". The size of
a memory section is architecture dependent. For example, power uses 16MiB, ia64
@@ -97,46 +105,50 @@ Memory sections are combined into chunks referred to as "memory blocks". The
size of a memory block is architecture dependent and represents the logical
unit upon which memory online/offline operations are to be performed. The
default size of a memory block is the same as memory section size unless an
-architecture specifies otherwise. (see Section 3.)
+architecture specifies otherwise. (see :ref:`memory_hotplug_sysfs_files`.)
To determine the size (in bytes) of a memory block please read this file:
/sys/devices/system/memory/block_size_bytes
------------------------
-2. Kernel Configuration
------------------------
+Kernel Configuration
+====================
+
To use memory hotplug feature, kernel must be compiled with following
config options.
-- For all memory hotplug
- Memory model -> Sparse Memory (CONFIG_SPARSEMEM)
- Allow for memory hot-add (CONFIG_MEMORY_HOTPLUG)
+- For all memory hotplug:
+ - Memory model -> Sparse Memory (CONFIG_SPARSEMEM)
+ - Allow for memory hot-add (CONFIG_MEMORY_HOTPLUG)
-- To enable memory removal, the following are also necessary
- Allow for memory hot remove (CONFIG_MEMORY_HOTREMOVE)
- Page Migration (CONFIG_MIGRATION)
+- To enable memory removal, the following are also necessary:
+ - Allow for memory hot remove (CONFIG_MEMORY_HOTREMOVE)
+ - Page Migration (CONFIG_MIGRATION)
-- For ACPI memory hotplug, the following are also necessary
- Memory hotplug (under ACPI Support menu) (CONFIG_ACPI_HOTPLUG_MEMORY)
- This option can be kernel module.
+- For ACPI memory hotplug, the following are also necessary:
+ - Memory hotplug (under ACPI Support menu) (CONFIG_ACPI_HOTPLUG_MEMORY)
+ - This option can be kernel module.
- As a related configuration, if your box has a feature of NUMA-node hotplug
via ACPI, then this option is necessary too.
- ACPI0004,PNP0A05 and PNP0A06 Container Driver (under ACPI Support menu)
- (CONFIG_ACPI_CONTAINER).
- This option can be kernel module too.
+ - ACPI0004,PNP0A05 and PNP0A06 Container Driver (under ACPI Support menu)
+ (CONFIG_ACPI_CONTAINER).
+
+ This option can be kernel module too.
+
+
+.. _memory_hotplug_sysfs_files:
+
+sysfs files for memory hotplug
+==============================
---------------------------------
-3 sysfs files for memory hotplug
---------------------------------
All memory blocks have their device information in sysfs. Each memory block
-is described under /sys/devices/system/memory as
+is described under /sys/devices/system/memory as:
-/sys/devices/system/memory/memoryXXX
-(XXX is the memory block id.)
+ /sys/devices/system/memory/memoryXXX
+ (XXX is the memory block id.)
For the memory block covered by the sysfs directory. It is expected that all
memory sections in this range are present and no memory holes exist in the
@@ -145,43 +157,53 @@ the existence of one should not affect the hotplug capabilities of the memory
block.
For example, assume 1GiB memory block size. A device for a memory starting at
-0x100000000 is /sys/device/system/memory/memory4
-(0x100000000 / 1Gib = 4)
+0x100000000 is /sys/device/system/memory/memory4::
+
+ (0x100000000 / 1Gib = 4)
+
This device covers address range [0x100000000 ... 0x140000000)
Under each memory block, you can see 5 files:
-/sys/devices/system/memory/memoryXXX/phys_index
-/sys/devices/system/memory/memoryXXX/phys_device
-/sys/devices/system/memory/memoryXXX/state
-/sys/devices/system/memory/memoryXXX/removable
-/sys/devices/system/memory/memoryXXX/valid_zones
+- /sys/devices/system/memory/memoryXXX/phys_index
+- /sys/devices/system/memory/memoryXXX/phys_device
+- /sys/devices/system/memory/memoryXXX/state
+- /sys/devices/system/memory/memoryXXX/removable
+- /sys/devices/system/memory/memoryXXX/valid_zones
+
+=================== ============================================================
+``phys_index`` read-only and contains memory block id, same as XXX.
+``state`` read-write
+
+ - at read: contains online/offline state of memory.
+ - at write: user can specify "online_kernel",
-'phys_index' : read-only and contains memory block id, same as XXX.
-'state' : read-write
- at read: contains online/offline state of memory.
- at write: user can specify "online_kernel",
"online_movable", "online", "offline" command
which will be performed on all sections in the block.
-'phys_device' : read-only: designed to show the name of physical memory
+``phys_device`` read-only: designed to show the name of physical memory
device. This is not well implemented now.
-'removable' : read-only: contains an integer value indicating
+``removable`` read-only: contains an integer value indicating
whether the memory block is removable or not
removable. A value of 1 indicates that the memory
block is removable and a value of 0 indicates that
it is not removable. A memory block is removable only if
every section in the block is removable.
-'valid_zones' : read-only: designed to show which zones this memory block
+``valid_zones`` read-only: designed to show which zones this memory block
can be onlined to.
- The first column shows it's default zone.
+
+ The first column shows it`s default zone.
+
"memory6/valid_zones: Normal Movable" shows this memoryblock
can be onlined to ZONE_NORMAL by default and to ZONE_MOVABLE
by online_movable.
+
"memory7/valid_zones: Movable Normal" shows this memoryblock
can be onlined to ZONE_MOVABLE by default and to ZONE_NORMAL
by online_kernel.
+=================== ============================================================
+
+.. note::
-NOTE:
These directories/files appear after physical memory hotplug phase.
If CONFIG_NUMA is enabled the memoryXXX/ directories can also be accessed
@@ -193,13 +215,14 @@ For example:
A backlink will also be created:
/sys/devices/system/memory/memory9/node0 -> ../../node/node0
+.. _memory_hotplug_physical_mem:
---------------------------------
-4. Physical memory hot-add phase
---------------------------------
+Physical memory hot-add phase
+=============================
+
+Hardware(Firmware) Support
+--------------------------
-4.1 Hardware(Firmware) Support
-------------
On x86_64/ia64 platform, memory hotplug by ACPI is supported.
In general, the firmware (ACPI) which supports memory hotplug defines
@@ -209,7 +232,8 @@ script. This will be done automatically.
But scripts for memory hotplug are not contained in generic udev package(now).
You may have to write it by yourself or online/offline memory by hand.
-Please see "How to online memory", "How to offline memory" in this text.
+Please see :ref:`memory_hotplug_how_to_online_memory` and
+:ref:`memory_hotplug_how_to_offline_memory`.
If firmware supports NUMA-node hotplug, and defines an object _HID "ACPI0004",
"PNP0A05", or "PNP0A06", notification is asserted to it, and ACPI handler
@@ -217,8 +241,9 @@ calls hotplug code for all of objects which are defined in it.
If memory device is found, memory hotplug code will be called.
-4.2 Notify memory hot-add event by hand
-------------
+Notify memory hot-add event by hand
+-----------------------------------
+
On some architectures, the firmware may not notify the kernel of a memory
hotplug event. Therefore, the memory "probe" interface is supported to
explicitly notify the kernel. This interface depends on
@@ -229,45 +254,48 @@ notification.
Probe interface is located at
/sys/devices/system/memory/probe
-You can tell the physical address of new memory to the kernel by
+You can tell the physical address of new memory to the kernel by::
-% echo start_address_of_new_memory > /sys/devices/system/memory/probe
+ % echo start_address_of_new_memory > /sys/devices/system/memory/probe
Then, [start_address_of_new_memory, start_address_of_new_memory +
memory_block_size] memory range is hot-added. In this case, hotplug script is
not called (in current implementation). You'll have to online memory by
-yourself. Please see "How to online memory" in this text.
+yourself. Please see :ref:`memory_hotplug_how_to_online_memory`.
+
+Logical Memory hot-add phase
+============================
-------------------------------
-5. Logical Memory hot-add phase
-------------------------------
+State of memory
+---------------
+
+To see (online/offline) state of a memory block, read 'state' file::
+
+ % cat /sys/device/system/memory/memoryXXX/state
-5.1. State of memory
-------------
-To see (online/offline) state of a memory block, read 'state' file.
-% cat /sys/device/system/memory/memoryXXX/state
+- If the memory block is online, you'll read "online".
+- If the memory block is offline, you'll read "offline".
-If the memory block is online, you'll read "online".
-If the memory block is offline, you'll read "offline".
+.. _memory_hotplug_how_to_online_memory:
+How to online memory
+--------------------
-5.2. How to online memory
-------------
When the memory is hot-added, the kernel decides whether or not to "online"
-it according to the policy which can be read from "auto_online_blocks" file:
+it according to the policy which can be read from "auto_online_blocks" file::
-% cat /sys/devices/system/memory/auto_online_blocks
+ % cat /sys/devices/system/memory/auto_online_blocks
The default depends on the CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE kernel config
option. If it is disabled the default is "offline" which means the newly added
memory is not in a ready-to-use state and you have to "online" the newly added
memory blocks manually. Automatic onlining can be requested by writing "online"
-to "auto_online_blocks" file:
+to "auto_online_blocks" file::
-% echo online > /sys/devices/system/memory/auto_online_blocks
+ % echo online > /sys/devices/system/memory/auto_online_blocks
This sets a global policy and impacts all memory blocks that will subsequently
be hotplugged. Currently offline blocks keep their state. It is possible, under
@@ -277,35 +305,43 @@ online. User space tools can check their "state" files
If the automatic onlining wasn't requested, failed, or some memory block was
offlined it is possible to change the individual block's state by writing to the
-"state" file:
+"state" file::
-% echo online > /sys/devices/system/memory/memoryXXX/state
+ % echo online > /sys/devices/system/memory/memoryXXX/state
This onlining will not change the ZONE type of the target memory block,
-If the memory block is in ZONE_NORMAL, you can change it to ZONE_MOVABLE:
+If the memory block doesn't belong to any zone an appropriate kernel zone
+(usually ZONE_NORMAL) will be used unless movable_node kernel command line
+option is specified when ZONE_MOVABLE will be used.
+
+You can explicitly request to associate it with ZONE_MOVABLE by::
+
+ % echo online_movable > /sys/devices/system/memory/memoryXXX/state
+
+.. note:: current limit: this memory block must be adjacent to ZONE_MOVABLE
-% echo online_movable > /sys/devices/system/memory/memoryXXX/state
-(NOTE: current limit: this memory block must be adjacent to ZONE_MOVABLE)
+Or you can explicitly request a kernel zone (usually ZONE_NORMAL) by::
-And if the memory block is in ZONE_MOVABLE, you can change it to ZONE_NORMAL:
+ % echo online_kernel > /sys/devices/system/memory/memoryXXX/state
-% echo online_kernel > /sys/devices/system/memory/memoryXXX/state
-(NOTE: current limit: this memory block must be adjacent to ZONE_NORMAL)
+.. note:: current limit: this memory block must be adjacent to ZONE_NORMAL
+
+An explicit zone onlining can fail (e.g. when the range is already within
+and existing and incompatible zone already).
After this, memory block XXX's state will be 'online' and the amount of
available memory will be increased.
-Currently, newly added memory is added as ZONE_NORMAL (for powerpc, ZONE_DMA).
This may be changed in future.
-------------------------
-6. Logical memory remove
-------------------------
+Logical memory remove
+=====================
+
+Memory offline and ZONE_MOVABLE
+-------------------------------
-6.1 Memory offline and ZONE_MOVABLE
-------------
Memory offlining is more complicated than memory online. Because memory offline
has to make the whole memory block be unused, memory offline can fail if
the memory block includes memory which cannot be freed.
@@ -330,24 +366,27 @@ Assume the system has "TOTAL" amount of memory at boot time, this boot option
creates ZONE_MOVABLE as following.
1) When kernelcore=YYYY boot option is used,
- Size of memory not for movable pages (not for offline) is YYYY.
- Size of memory for movable pages (for offline) is TOTAL-YYYY.
+ Size of memory not for movable pages (not for offline) is YYYY.
+ Size of memory for movable pages (for offline) is TOTAL-YYYY.
2) When movablecore=ZZZZ boot option is used,
- Size of memory not for movable pages (not for offline) is TOTAL - ZZZZ.
- Size of memory for movable pages (for offline) is ZZZZ.
+ Size of memory not for movable pages (not for offline) is TOTAL - ZZZZ.
+ Size of memory for movable pages (for offline) is ZZZZ.
+
+.. note::
+ Unfortunately, there is no information to show which memory block belongs
+ to ZONE_MOVABLE. This is TBD.
-Note: Unfortunately, there is no information to show which memory block belongs
-to ZONE_MOVABLE. This is TBD.
+.. _memory_hotplug_how_to_offline_memory:
+How to offline memory
+---------------------
-6.2. How to offline memory
-------------
You can offline a memory block by using the same sysfs interface that was used
-in memory onlining.
+in memory onlining::
-% echo offline > /sys/devices/system/memory/memoryXXX/state
+ % echo offline > /sys/devices/system/memory/memoryXXX/state
If offline succeeds, the state of the memory block is changed to be "offline".
If it fails, some error core (like -EBUSY) will be returned by the kernel.
@@ -361,22 +400,22 @@ able to offline it (or not). (For example, a page is referred to by some kernel
internal call and released soon.)
Consideration:
-Memory hotplug's design direction is to make the possibility of memory offlining
-higher and to guarantee unplugging memory under any situation. But it needs
-more work. Returning -EBUSY under some situation may be good because the user
-can decide to retry more or not by himself. Currently, memory offlining code
-does some amount of retry with 120 seconds timeout.
+ Memory hotplug's design direction is to make the possibility of memory
+ offlining higher and to guarantee unplugging memory under any situation. But
+ it needs more work. Returning -EBUSY under some situation may be good because
+ the user can decide to retry more or not by himself. Currently, memory
+ offlining code does some amount of retry with 120 seconds timeout.
+
+Physical memory remove
+======================
--------------------------
-7. Physical memory remove
--------------------------
Need more implementation yet....
- Notification completion of remove works by OS to firmware.
- Guard from remove if not yet.
---------------------------------
-8. Memory hotplug event notifier
---------------------------------
+Memory hotplug event notifier
+=============================
+
Hotplugging events are sent to a notification queue.
There are six types of notification defined in include/linux/memory.h:
@@ -406,14 +445,14 @@ MEM_CANCEL_OFFLINE
MEM_OFFLINE
Generated after offlining memory is complete.
-A callback routine can be registered by calling
+A callback routine can be registered by calling::
hotplug_memory_notifier(callback_func, priority)
Callback functions with higher values of priority are called before callback
functions with lower values.
-A callback function must have the following prototype:
+A callback function must have the following prototype::
int callback_func(
struct notifier_block *self, unsigned long action, void *arg);
@@ -421,27 +460,28 @@ A callback function must have the following prototype:
The first argument of the callback function (self) is a pointer to the block
of the notifier chain that points to the callback function itself.
The second argument (action) is one of the event types described above.
-The third argument (arg) passes a pointer of struct memory_notify.
-
-struct memory_notify {
- unsigned long start_pfn;
- unsigned long nr_pages;
- int status_change_nid_normal;
- int status_change_nid_high;
- int status_change_nid;
-}
-
-start_pfn is start_pfn of online/offline memory.
-nr_pages is # of pages of online/offline memory.
-status_change_nid_normal is set node id when N_NORMAL_MEMORY of nodemask
-is (will be) set/clear, if this is -1, then nodemask status is not changed.
-status_change_nid_high is set node id when N_HIGH_MEMORY of nodemask
-is (will be) set/clear, if this is -1, then nodemask status is not changed.
-status_change_nid is set node id when N_MEMORY of nodemask is (will be)
-set/clear. It means a new(memoryless) node gets new memory by online and a
-node loses all memory. If this is -1, then nodemask status is not changed.
-If status_changed_nid* >= 0, callback should create/discard structures for the
-node if necessary.
+The third argument (arg) passes a pointer of struct memory_notify::
+
+ struct memory_notify {
+ unsigned long start_pfn;
+ unsigned long nr_pages;
+ int status_change_nid_normal;
+ int status_change_nid_high;
+ int status_change_nid;
+ }
+
+- start_pfn is start_pfn of online/offline memory.
+- nr_pages is # of pages of online/offline memory.
+- status_change_nid_normal is set node id when N_NORMAL_MEMORY of nodemask
+ is (will be) set/clear, if this is -1, then nodemask status is not changed.
+- status_change_nid_high is set node id when N_HIGH_MEMORY of nodemask
+ is (will be) set/clear, if this is -1, then nodemask status is not changed.
+- status_change_nid is set node id when N_MEMORY of nodemask is (will be)
+ set/clear. It means a new(memoryless) node gets new memory by online and a
+ node loses all memory. If this is -1, then nodemask status is not changed.
+
+ If status_changed_nid* >= 0, callback should create/discard structures for the
+ node if necessary.
The callback routine shall return one of the values
NOTIFY_DONE, NOTIFY_OK, NOTIFY_BAD, NOTIFY_STOP
@@ -455,9 +495,9 @@ further processing of the notification queue.
NOTIFY_STOP stops further processing of the notification queue.
---------------
-9. Future Work
---------------
+Future Work
+===========
+
- allowing memory hot-add to ZONE_MOVABLE. maybe we need some switch like
sysctl or new control file.
- showing memory block and physical device relationship.
@@ -465,4 +505,3 @@ NOTIFY_STOP stops further processing of the notification queue.
- support HugeTLB page migration and offlining.
- memmap removing at memory offline.
- physical remove memory.
-
diff --git a/Documentation/men-chameleon-bus.txt b/Documentation/men-chameleon-bus.txt
index 30ded732027e..1b1f048aa748 100644
--- a/Documentation/men-chameleon-bus.txt
+++ b/Documentation/men-chameleon-bus.txt
@@ -1,163 +1,175 @@
- MEN Chameleon Bus
- =================
-
-Table of Contents
=================
-1 Introduction
- 1.1 Scope of this Document
- 1.2 Limitations of the current implementation
-2 Architecture
- 2.1 MEN Chameleon Bus
- 2.2 Carrier Devices
- 2.3 Parser
-3 Resource handling
- 3.1 Memory Resources
- 3.2 IRQs
-4 Writing an MCB driver
- 4.1 The driver structure
- 4.2 Probing and attaching
- 4.3 Initializing the driver
-
-
-1 Introduction
-===============
- This document describes the architecture and implementation of the MEN
- Chameleon Bus (called MCB throughout this document).
-
-1.1 Scope of this Document
----------------------------
- This document is intended to be a short overview of the current
- implementation and does by no means describe the complete possibilities of MCB
- based devices.
-
-1.2 Limitations of the current implementation
-----------------------------------------------
- The current implementation is limited to PCI and PCIe based carrier devices
- that only use a single memory resource and share the PCI legacy IRQ. Not
- implemented are:
- - Multi-resource MCB devices like the VME Controller or M-Module carrier.
- - MCB devices that need another MCB device, like SRAM for a DMA Controller's
- buffer descriptors or a video controller's video memory.
- - A per-carrier IRQ domain for carrier devices that have one (or more) IRQs
- per MCB device like PCIe based carriers with MSI or MSI-X support.
-
-2 Architecture
-===============
- MCB is divided into 3 functional blocks:
- - The MEN Chameleon Bus itself,
- - drivers for MCB Carrier Devices and
- - the parser for the Chameleon table.
-
-2.1 MEN Chameleon Bus
+MEN Chameleon Bus
+=================
+
+.. Table of Contents
+ =================
+ 1 Introduction
+ 1.1 Scope of this Document
+ 1.2 Limitations of the current implementation
+ 2 Architecture
+ 2.1 MEN Chameleon Bus
+ 2.2 Carrier Devices
+ 2.3 Parser
+ 3 Resource handling
+ 3.1 Memory Resources
+ 3.2 IRQs
+ 4 Writing an MCB driver
+ 4.1 The driver structure
+ 4.2 Probing and attaching
+ 4.3 Initializing the driver
+
+
+Introduction
+============
+
+This document describes the architecture and implementation of the MEN
+Chameleon Bus (called MCB throughout this document).
+
+Scope of this Document
----------------------
- The MEN Chameleon Bus is an artificial bus system that attaches to a so
- called Chameleon FPGA device found on some hardware produced my MEN Mikro
- Elektronik GmbH. These devices are multi-function devices implemented in a
- single FPGA and usually attached via some sort of PCI or PCIe link. Each
- FPGA contains a header section describing the content of the FPGA. The
- header lists the device id, PCI BAR, offset from the beginning of the PCI
- BAR, size in the FPGA, interrupt number and some other properties currently
- not handled by the MCB implementation.
-
-2.2 Carrier Devices
+
+This document is intended to be a short overview of the current
+implementation and does by no means describe the complete possibilities of MCB
+based devices.
+
+Limitations of the current implementation
+-----------------------------------------
+
+The current implementation is limited to PCI and PCIe based carrier devices
+that only use a single memory resource and share the PCI legacy IRQ. Not
+implemented are:
+
+- Multi-resource MCB devices like the VME Controller or M-Module carrier.
+- MCB devices that need another MCB device, like SRAM for a DMA Controller's
+ buffer descriptors or a video controller's video memory.
+- A per-carrier IRQ domain for carrier devices that have one (or more) IRQs
+ per MCB device like PCIe based carriers with MSI or MSI-X support.
+
+Architecture
+============
+
+MCB is divided into 3 functional blocks:
+
+- The MEN Chameleon Bus itself,
+- drivers for MCB Carrier Devices and
+- the parser for the Chameleon table.
+
+MEN Chameleon Bus
+-----------------
+
+The MEN Chameleon Bus is an artificial bus system that attaches to a so
+called Chameleon FPGA device found on some hardware produced my MEN Mikro
+Elektronik GmbH. These devices are multi-function devices implemented in a
+single FPGA and usually attached via some sort of PCI or PCIe link. Each
+FPGA contains a header section describing the content of the FPGA. The
+header lists the device id, PCI BAR, offset from the beginning of the PCI
+BAR, size in the FPGA, interrupt number and some other properties currently
+not handled by the MCB implementation.
+
+Carrier Devices
+---------------
+
+A carrier device is just an abstraction for the real world physical bus the
+Chameleon FPGA is attached to. Some IP Core drivers may need to interact with
+properties of the carrier device (like querying the IRQ number of a PCI
+device). To provide abstraction from the real hardware bus, an MCB carrier
+device provides callback methods to translate the driver's MCB function calls
+to hardware related function calls. For example a carrier device may
+implement the get_irq() method which can be translated into a hardware bus
+query for the IRQ number the device should use.
+
+Parser
+------
+
+The parser reads the first 512 bytes of a Chameleon device and parses the
+Chameleon table. Currently the parser only supports the Chameleon v2 variant
+of the Chameleon table but can easily be adopted to support an older or
+possible future variant. While parsing the table's entries new MCB devices
+are allocated and their resources are assigned according to the resource
+assignment in the Chameleon table. After resource assignment is finished, the
+MCB devices are registered at the MCB and thus at the driver core of the
+Linux kernel.
+
+Resource handling
+=================
+
+The current implementation assigns exactly one memory and one IRQ resource
+per MCB device. But this is likely going to change in the future.
+
+Memory Resources
+----------------
+
+Each MCB device has exactly one memory resource, which can be requested from
+the MCB bus. This memory resource is the physical address of the MCB device
+inside the carrier and is intended to be passed to ioremap() and friends. It
+is already requested from the kernel by calling request_mem_region().
+
+IRQs
+----
+
+Each MCB device has exactly one IRQ resource, which can be requested from the
+MCB bus. If a carrier device driver implements the ->get_irq() callback
+method, the IRQ number assigned by the carrier device will be returned,
+otherwise the IRQ number inside the Chameleon table will be returned. This
+number is suitable to be passed to request_irq().
+
+Writing an MCB driver
+=====================
+
+The driver structure
--------------------
- A carrier device is just an abstraction for the real world physical bus the
- Chameleon FPGA is attached to. Some IP Core drivers may need to interact with
- properties of the carrier device (like querying the IRQ number of a PCI
- device). To provide abstraction from the real hardware bus, an MCB carrier
- device provides callback methods to translate the driver's MCB function calls
- to hardware related function calls. For example a carrier device may
- implement the get_irq() method which can be translated into a hardware bus
- query for the IRQ number the device should use.
-
-2.3 Parser
------------
- The parser reads the first 512 bytes of a Chameleon device and parses the
- Chameleon table. Currently the parser only supports the Chameleon v2 variant
- of the Chameleon table but can easily be adopted to support an older or
- possible future variant. While parsing the table's entries new MCB devices
- are allocated and their resources are assigned according to the resource
- assignment in the Chameleon table. After resource assignment is finished, the
- MCB devices are registered at the MCB and thus at the driver core of the
- Linux kernel.
-
-3 Resource handling
-====================
- The current implementation assigns exactly one memory and one IRQ resource
- per MCB device. But this is likely going to change in the future.
-
-3.1 Memory Resources
+
+Each MCB driver has a structure to identify the device driver as well as
+device ids which identify the IP Core inside the FPGA. The driver structure
+also contains callback methods which get executed on driver probe and
+removal from the system::
+
+ static const struct mcb_device_id foo_ids[] = {
+ { .device = 0x123 },
+ { }
+ };
+ MODULE_DEVICE_TABLE(mcb, foo_ids);
+
+ static struct mcb_driver foo_driver = {
+ driver = {
+ .name = "foo-bar",
+ .owner = THIS_MODULE,
+ },
+ .probe = foo_probe,
+ .remove = foo_remove,
+ .id_table = foo_ids,
+ };
+
+Probing and attaching
---------------------
- Each MCB device has exactly one memory resource, which can be requested from
- the MCB bus. This memory resource is the physical address of the MCB device
- inside the carrier and is intended to be passed to ioremap() and friends. It
- is already requested from the kernel by calling request_mem_region().
-
-3.2 IRQs
----------
- Each MCB device has exactly one IRQ resource, which can be requested from the
- MCB bus. If a carrier device driver implements the ->get_irq() callback
- method, the IRQ number assigned by the carrier device will be returned,
- otherwise the IRQ number inside the Chameleon table will be returned. This
- number is suitable to be passed to request_irq().
-
-4 Writing an MCB driver
-=======================
-
-4.1 The driver structure
--------------------------
- Each MCB driver has a structure to identify the device driver as well as
- device ids which identify the IP Core inside the FPGA. The driver structure
- also contains callback methods which get executed on driver probe and
- removal from the system.
-
-
- static const struct mcb_device_id foo_ids[] = {
- { .device = 0x123 },
- { }
- };
- MODULE_DEVICE_TABLE(mcb, foo_ids);
-
- static struct mcb_driver foo_driver = {
- driver = {
- .name = "foo-bar",
- .owner = THIS_MODULE,
- },
- .probe = foo_probe,
- .remove = foo_remove,
- .id_table = foo_ids,
- };
-
-4.2 Probing and attaching
---------------------------
- When a driver is loaded and the MCB devices it services are found, the MCB
- core will call the driver's probe callback method. When the driver is removed
- from the system, the MCB core will call the driver's remove callback method.
-
-
- static init foo_probe(struct mcb_device *mdev, const struct mcb_device_id *id);
- static void foo_remove(struct mcb_device *mdev);
-
-4.3 Initializing the driver
-----------------------------
- When the kernel is booted or your foo driver module is inserted, you have to
- perform driver initialization. Usually it is enough to register your driver
- module at the MCB core.
-
-
- static int __init foo_init(void)
- {
- return mcb_register_driver(&foo_driver);
- }
- module_init(foo_init);
-
- static void __exit foo_exit(void)
- {
- mcb_unregister_driver(&foo_driver);
- }
- module_exit(foo_exit);
-
- The module_mcb_driver() macro can be used to reduce the above code.
-
-
- module_mcb_driver(foo_driver);
+
+When a driver is loaded and the MCB devices it services are found, the MCB
+core will call the driver's probe callback method. When the driver is removed
+from the system, the MCB core will call the driver's remove callback method::
+
+ static init foo_probe(struct mcb_device *mdev, const struct mcb_device_id *id);
+ static void foo_remove(struct mcb_device *mdev);
+
+Initializing the driver
+-----------------------
+
+When the kernel is booted or your foo driver module is inserted, you have to
+perform driver initialization. Usually it is enough to register your driver
+module at the MCB core::
+
+ static int __init foo_init(void)
+ {
+ return mcb_register_driver(&foo_driver);
+ }
+ module_init(foo_init);
+
+ static void __exit foo_exit(void)
+ {
+ mcb_unregister_driver(&foo_driver);
+ }
+ module_exit(foo_exit);
+
+The module_mcb_driver() macro can be used to reduce the above code::
+
+ module_mcb_driver(foo_driver);
diff --git a/Documentation/networking/00-INDEX b/Documentation/networking/00-INDEX
index c6beb5f1637f..7a79b3587dd3 100644
--- a/Documentation/networking/00-INDEX
+++ b/Documentation/networking/00-INDEX
@@ -30,8 +30,6 @@ atm.txt
- info on where to get ATM programs and support for Linux.
ax25.txt
- info on using AX.25 and NET/ROM code for Linux
-batman-adv.txt
- - B.A.T.M.A.N routing protocol on top of layer 2 Ethernet Frames.
baycom.txt
- info on the driver for Baycom style amateur radio modems
bonding.txt
diff --git a/Documentation/networking/batman-adv.rst b/Documentation/networking/batman-adv.rst
new file mode 100644
index 000000000000..a342b2cc3dc6
--- /dev/null
+++ b/Documentation/networking/batman-adv.rst
@@ -0,0 +1,220 @@
+==========
+batman-adv
+==========
+
+Batman advanced is a new approach to wireless networking which does no longer
+operate on the IP basis. Unlike the batman daemon, which exchanges information
+using UDP packets and sets routing tables, batman-advanced operates on ISO/OSI
+Layer 2 only and uses and routes (or better: bridges) Ethernet Frames. It
+emulates a virtual network switch of all nodes participating. Therefore all
+nodes appear to be link local, thus all higher operating protocols won't be
+affected by any changes within the network. You can run almost any protocol
+above batman advanced, prominent examples are: IPv4, IPv6, DHCP, IPX.
+
+Batman advanced was implemented as a Linux kernel driver to reduce the overhead
+to a minimum. It does not depend on any (other) network driver, and can be used
+on wifi as well as ethernet lan, vpn, etc ... (anything with ethernet-style
+layer 2).
+
+
+Configuration
+=============
+
+Load the batman-adv module into your kernel::
+
+ $ insmod batman-adv.ko
+
+The module is now waiting for activation. You must add some interfaces on which
+batman can operate. After loading the module batman advanced will scan your
+systems interfaces to search for compatible interfaces. Once found, it will
+create subfolders in the ``/sys`` directories of each supported interface,
+e.g.::
+
+ $ ls /sys/class/net/eth0/batman_adv/
+ elp_interval iface_status mesh_iface throughput_override
+
+If an interface does not have the ``batman_adv`` subfolder, it probably is not
+supported. Not supported interfaces are: loopback, non-ethernet and batman's
+own interfaces.
+
+Note: After the module was loaded it will continuously watch for new
+interfaces to verify the compatibility. There is no need to reload the module
+if you plug your USB wifi adapter into your machine after batman advanced was
+initially loaded.
+
+The batman-adv soft-interface can be created using the iproute2 tool ``ip``::
+
+ $ ip link add name bat0 type batadv
+
+To activate a given interface simply attach it to the ``bat0`` interface::
+
+ $ ip link set dev eth0 master bat0
+
+Repeat this step for all interfaces you wish to add. Now batman starts
+using/broadcasting on this/these interface(s).
+
+By reading the "iface_status" file you can check its status::
+
+ $ cat /sys/class/net/eth0/batman_adv/iface_status
+ active
+
+To deactivate an interface you have to detach it from the "bat0" interface::
+
+ $ ip link set dev eth0 nomaster
+
+
+All mesh wide settings can be found in batman's own interface folder::
+
+ $ ls /sys/class/net/bat0/mesh/
+ aggregated_ogms fragmentation isolation_mark routing_algo
+ ap_isolation gw_bandwidth log_level vlan0
+ bonding gw_mode multicast_mode
+ bridge_loop_avoidance gw_sel_class network_coding
+ distributed_arp_table hop_penalty orig_interval
+
+There is a special folder for debugging information::
+
+ $ ls /sys/kernel/debug/batman_adv/bat0/
+ bla_backbone_table log neighbors transtable_local
+ bla_claim_table mcast_flags originators
+ dat_cache nc socket
+ gateways nc_nodes transtable_global
+
+Some of the files contain all sort of status information regarding the mesh
+network. For example, you can view the table of originators (mesh
+participants) with::
+
+ $ cat /sys/kernel/debug/batman_adv/bat0/originators
+
+Other files allow to change batman's behaviour to better fit your requirements.
+For instance, you can check the current originator interval (value in
+milliseconds which determines how often batman sends its broadcast packets)::
+
+ $ cat /sys/class/net/bat0/mesh/orig_interval
+ 1000
+
+and also change its value::
+
+ $ echo 3000 > /sys/class/net/bat0/mesh/orig_interval
+
+In very mobile scenarios, you might want to adjust the originator interval to a
+lower value. This will make the mesh more responsive to topology changes, but
+will also increase the overhead.
+
+
+Usage
+=====
+
+To make use of your newly created mesh, batman advanced provides a new
+interface "bat0" which you should use from this point on. All interfaces added
+to batman advanced are not relevant any longer because batman handles them for
+you. Basically, one "hands over" the data by using the batman interface and
+batman will make sure it reaches its destination.
+
+The "bat0" interface can be used like any other regular interface. It needs an
+IP address which can be either statically configured or dynamically (by using
+DHCP or similar services)::
+
+ NodeA: ip link set up dev bat0
+ NodeA: ip addr add 192.168.0.1/24 dev bat0
+
+ NodeB: ip link set up dev bat0
+ NodeB: ip addr add 192.168.0.2/24 dev bat0
+ NodeB: ping 192.168.0.1
+
+Note: In order to avoid problems remove all IP addresses previously assigned to
+interfaces now used by batman advanced, e.g.::
+
+ $ ip addr flush dev eth0
+
+
+Logging/Debugging
+=================
+
+All error messages, warnings and information messages are sent to the kernel
+log. Depending on your operating system distribution this can be read in one of
+a number of ways. Try using the commands: ``dmesg``, ``logread``, or looking in
+the files ``/var/log/kern.log`` or ``/var/log/syslog``. All batman-adv messages
+are prefixed with "batman-adv:" So to see just these messages try::
+
+ $ dmesg | grep batman-adv
+
+When investigating problems with your mesh network, it is sometimes necessary to
+see more detail debug messages. This must be enabled when compiling the
+batman-adv module. When building batman-adv as part of kernel, use "make
+menuconfig" and enable the option ``B.A.T.M.A.N. debugging``
+(``CONFIG_BATMAN_ADV_DEBUG=y``).
+
+Those additional debug messages can be accessed using a special file in
+debugfs::
+
+ $ cat /sys/kernel/debug/batman_adv/bat0/log
+
+The additional debug output is by default disabled. It can be enabled during
+run time. Following log_levels are defined:
+
+.. flat-table::
+
+ * - 0
+ - All debug output disabled
+ * - 1
+ - Enable messages related to routing / flooding / broadcasting
+ * - 2
+ - Enable messages related to route added / changed / deleted
+ * - 4
+ - Enable messages related to translation table operations
+ * - 8
+ - Enable messages related to bridge loop avoidance
+ * - 16
+ - Enable messages related to DAT, ARP snooping and parsing
+ * - 32
+ - Enable messages related to network coding
+ * - 64
+ - Enable messages related to multicast
+ * - 128
+ - Enable messages related to throughput meter
+ * - 255
+ - Enable all messages
+
+The debug output can be changed at runtime using the file
+``/sys/class/net/bat0/mesh/log_level``. e.g.::
+
+ $ echo 6 > /sys/class/net/bat0/mesh/log_level
+
+will enable debug messages for when routes change.
+
+Counters for different types of packets entering and leaving the batman-adv
+module are available through ethtool::
+
+ $ ethtool --statistics bat0
+
+
+batctl
+======
+
+As batman advanced operates on layer 2, all hosts participating in the virtual
+switch are completely transparent for all protocols above layer 2. Therefore
+the common diagnosis tools do not work as expected. To overcome these problems,
+batctl was created. At the moment the batctl contains ping, traceroute, tcpdump
+and interfaces to the kernel module settings.
+
+For more information, please see the manpage (``man batctl``).
+
+batctl is available on https://www.open-mesh.org/
+
+
+Contact
+=======
+
+Please send us comments, experiences, questions, anything :)
+
+IRC:
+ #batman on irc.freenode.org
+Mailing-list:
+ b.a.t.m.a.n@open-mesh.org (optional subscription at
+ https://lists.open-mesh.org/mm/listinfo/b.a.t.m.a.n)
+
+You can also contact the Authors:
+
+* Marek Lindner <mareklindner@neomailbox.ch>
+* Simon Wunderlich <sw@simonwunderlich.de>
diff --git a/Documentation/networking/batman-adv.txt b/Documentation/networking/batman-adv.txt
deleted file mode 100644
index ccf94677b240..000000000000
--- a/Documentation/networking/batman-adv.txt
+++ /dev/null
@@ -1,215 +0,0 @@
-BATMAN-ADV
-----------
-
-Batman advanced is a new approach to wireless networking which
-does no longer operate on the IP basis. Unlike the batman daemon,
-which exchanges information using UDP packets and sets routing
-tables, batman-advanced operates on ISO/OSI Layer 2 only and uses
-and routes (or better: bridges) Ethernet Frames. It emulates a
-virtual network switch of all nodes participating. Therefore all
-nodes appear to be link local, thus all higher operating proto-
-cols won't be affected by any changes within the network. You can
-run almost any protocol above batman advanced, prominent examples
-are: IPv4, IPv6, DHCP, IPX.
-
-Batman advanced was implemented as a Linux kernel driver to re-
-duce the overhead to a minimum. It does not depend on any (other)
-network driver, and can be used on wifi as well as ethernet lan,
-vpn, etc ... (anything with ethernet-style layer 2).
-
-
-CONFIGURATION
--------------
-
-Load the batman-adv module into your kernel:
-
-# insmod batman-adv.ko
-
-The module is now waiting for activation. You must add some in-
-terfaces on which batman can operate. After loading the module
-batman advanced will scan your systems interfaces to search for
-compatible interfaces. Once found, it will create subfolders in
-the /sys directories of each supported interface, e.g.
-
-# ls /sys/class/net/eth0/batman_adv/
-# elp_interval iface_status mesh_iface throughput_override
-
-If an interface does not have the "batman_adv" subfolder it prob-
-ably is not supported. Not supported interfaces are: loopback,
-non-ethernet and batman's own interfaces.
-
-Note: After the module was loaded it will continuously watch for
-new interfaces to verify the compatibility. There is no need to
-reload the module if you plug your USB wifi adapter into your ma-
-chine after batman advanced was initially loaded.
-
-The batman-adv soft-interface can be created using the iproute2
-tool "ip"
-
-# ip link add name bat0 type batadv
-
-To activate a given interface simply attach it to the "bat0"
-interface
-
-# ip link set dev eth0 master bat0
-
-Repeat this step for all interfaces you wish to add. Now batman
-starts using/broadcasting on this/these interface(s).
-
-By reading the "iface_status" file you can check its status:
-
-# cat /sys/class/net/eth0/batman_adv/iface_status
-# active
-
-To deactivate an interface you have to detach it from the
-"bat0" interface:
-
-# ip link set dev eth0 nomaster
-
-
-All mesh wide settings can be found in batman's own interface
-folder:
-
-# ls /sys/class/net/bat0/mesh/
-# aggregated_ogms fragmentation isolation_mark routing_algo
-# ap_isolation gw_bandwidth log_level vlan0
-# bonding gw_mode multicast_mode
-# bridge_loop_avoidance gw_sel_class network_coding
-# distributed_arp_table hop_penalty orig_interval
-
-There is a special folder for debugging information:
-
-# ls /sys/kernel/debug/batman_adv/bat0/
-# bla_backbone_table log neighbors transtable_local
-# bla_claim_table mcast_flags originators
-# dat_cache nc socket
-# gateways nc_nodes transtable_global
-
-Some of the files contain all sort of status information regard-
-ing the mesh network. For example, you can view the table of
-originators (mesh participants) with:
-
-# cat /sys/kernel/debug/batman_adv/bat0/originators
-
-Other files allow to change batman's behaviour to better fit your
-requirements. For instance, you can check the current originator
-interval (value in milliseconds which determines how often batman
-sends its broadcast packets):
-
-# cat /sys/class/net/bat0/mesh/orig_interval
-# 1000
-
-and also change its value:
-
-# echo 3000 > /sys/class/net/bat0/mesh/orig_interval
-
-In very mobile scenarios, you might want to adjust the originator
-interval to a lower value. This will make the mesh more respon-
-sive to topology changes, but will also increase the overhead.
-
-
-USAGE
------
-
-To make use of your newly created mesh, batman advanced provides
-a new interface "bat0" which you should use from this point on.
-All interfaces added to batman advanced are not relevant any
-longer because batman handles them for you. Basically, one "hands
-over" the data by using the batman interface and batman will make
-sure it reaches its destination.
-
-The "bat0" interface can be used like any other regular inter-
-face. It needs an IP address which can be either statically con-
-figured or dynamically (by using DHCP or similar services):
-
-# NodeA: ip link set up dev bat0
-# NodeA: ip addr add 192.168.0.1/24 dev bat0
-
-# NodeB: ip link set up dev bat0
-# NodeB: ip addr add 192.168.0.2/24 dev bat0
-# NodeB: ping 192.168.0.1
-
-Note: In order to avoid problems remove all IP addresses previ-
-ously assigned to interfaces now used by batman advanced, e.g.
-
-# ip addr flush dev eth0
-
-
-LOGGING/DEBUGGING
------------------
-
-All error messages, warnings and information messages are sent to
-the kernel log. Depending on your operating system distribution
-this can be read in one of a number of ways. Try using the com-
-mands: dmesg, logread, or looking in the files /var/log/kern.log
-or /var/log/syslog. All batman-adv messages are prefixed with
-"batman-adv:" So to see just these messages try
-
-# dmesg | grep batman-adv
-
-When investigating problems with your mesh network it is some-
-times necessary to see more detail debug messages. This must be
-enabled when compiling the batman-adv module. When building bat-
-man-adv as part of kernel, use "make menuconfig" and enable the
-option "B.A.T.M.A.N. debugging".
-
-Those additional debug messages can be accessed using a special
-file in debugfs
-
-# cat /sys/kernel/debug/batman_adv/bat0/log
-
-The additional debug output is by default disabled. It can be en-
-abled during run time. Following log_levels are defined:
-
- 0 - All debug output disabled
- 1 - Enable messages related to routing / flooding / broadcasting
- 2 - Enable messages related to route added / changed / deleted
- 4 - Enable messages related to translation table operations
- 8 - Enable messages related to bridge loop avoidance
- 16 - Enable messages related to DAT, ARP snooping and parsing
- 32 - Enable messages related to network coding
- 64 - Enable messages related to multicast
-128 - Enable messages related to throughput meter
-255 - Enable all messages
-
-The debug output can be changed at runtime using the file
-/sys/class/net/bat0/mesh/log_level. e.g.
-
-# echo 6 > /sys/class/net/bat0/mesh/log_level
-
-will enable debug messages for when routes change.
-
-Counters for different types of packets entering and leaving the
-batman-adv module are available through ethtool:
-
-# ethtool --statistics bat0
-
-
-BATCTL
-------
-
-As batman advanced operates on layer 2 all hosts participating in
-the virtual switch are completely transparent for all protocols
-above layer 2. Therefore the common diagnosis tools do not work
-as expected. To overcome these problems batctl was created. At
-the moment the batctl contains ping, traceroute, tcpdump and
-interfaces to the kernel module settings.
-
-For more information, please see the manpage (man batctl).
-
-batctl is available on https://www.open-mesh.org/
-
-
-CONTACT
--------
-
-Please send us comments, experiences, questions, anything :)
-
-IRC: #batman on irc.freenode.org
-Mailing-list: b.a.t.m.a.n@open-mesh.org (optional subscription
- at https://lists.open-mesh.org/mm/listinfo/b.a.t.m.a.n)
-
-You can also contact the Authors:
-
-Marek Lindner <mareklindner@neomailbox.ch>
-Simon Wunderlich <sw@simonwunderlich.de>
diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt
index 57f52cdce32e..9ba04c0bab8d 100644
--- a/Documentation/networking/bonding.txt
+++ b/Documentation/networking/bonding.txt
@@ -2387,7 +2387,7 @@ broadcast: Like active-backup, there is not much advantage to this
and packet type ID), so in a "gatewayed" configuration, all
outgoing traffic will generally use the same device. Incoming
traffic may also end up on a single device, but that is
- dependent upon the balancing policy of the peer's 8023.ad
+ dependent upon the balancing policy of the peer's 802.3ad
implementation. In a "local" configuration, traffic will be
distributed across the devices in the bond.
diff --git a/Documentation/networking/checksum-offloads.txt b/Documentation/networking/checksum-offloads.txt
index 56e36861245f..d52d191bbb0c 100644
--- a/Documentation/networking/checksum-offloads.txt
+++ b/Documentation/networking/checksum-offloads.txt
@@ -35,6 +35,9 @@ This interface only allows a single checksum to be offloaded. Where
encapsulation is used, the packet may have multiple checksum fields in
different header layers, and the rest will have to be handled by another
mechanism such as LCO or RCO.
+CRC32c can also be offloaded using this interface, by means of filling
+ skb->csum_start and skb->csum_offset as described above, and setting
+ skb->csum_not_inet: see skbuff.h comment (section 'D') for more details.
No offloading of the IP header checksum is performed; it is always done in
software. This is OK because when we build the IP header, we obviously
have it in cache, so summing it isn't expensive. It's also rather short.
@@ -49,9 +52,9 @@ A driver declares its offload capabilities in netdev->hw_features; see
and csum_offset given in the SKB; if it tries to deduce these itself in
hardware (as some NICs do) the driver should check that the values in the
SKB match those which the hardware will deduce, and if not, fall back to
- checksumming in software instead (with skb_checksum_help or one of the
- skb_csum_off_chk* functions as mentioned in include/linux/skbuff.h). This
- is a pain, but that's what you get when hardware tries to be clever.
+ checksumming in software instead (with skb_csum_hwoffload_help() or one of
+ the skb_checksum_help() / skb_crc32c_csum_help functions, as mentioned in
+ include/linux/skbuff.h).
The stack should, for the most part, assume that checksum offload is
supported by the underlying device. The only place that should check is
@@ -60,7 +63,7 @@ The stack should, for the most part, assume that checksum offload is
may include other offloads besides TX Checksum Offload) and, if they are
not supported or enabled on the device (determined by netdev->features),
performs the corresponding offload in software. In the case of TX
- Checksum Offload, that means calling skb_checksum_help(skb).
+ Checksum Offload, that means calling skb_csum_hwoffload_help(skb, features).
LCO: Local Checksum Offload
diff --git a/Documentation/networking/conf.py b/Documentation/networking/conf.py
new file mode 100644
index 000000000000..40f69e67a883
--- /dev/null
+++ b/Documentation/networking/conf.py
@@ -0,0 +1,10 @@
+# -*- coding: utf-8; mode: python -*-
+
+project = "Linux Networking Documentation"
+
+tags.add("subproject")
+
+latex_documents = [
+ ('index', 'networking.tex', project,
+ 'The kernel development community', 'manual'),
+]
diff --git a/Documentation/networking/dns_resolver.txt b/Documentation/networking/dns_resolver.txt
index d86adcdae420..eaa8f9a6fd5d 100644
--- a/Documentation/networking/dns_resolver.txt
+++ b/Documentation/networking/dns_resolver.txt
@@ -143,7 +143,7 @@ the key will be discarded and recreated when the data it holds has expired.
dns_query() returns a copy of the value attached to the key, or an error if
that is indicated instead.
-See <file:Documentation/security/keys-request-key.txt> for further
+See <file:Documentation/security/keys/request-key.rst> for further
information about request-key function.
diff --git a/Documentation/networking/dpaa.txt b/Documentation/networking/dpaa.txt
index 76e016d4d344..f88194f71c54 100644
--- a/Documentation/networking/dpaa.txt
+++ b/Documentation/networking/dpaa.txt
@@ -13,6 +13,7 @@ Contents
- Configuring DPAA Ethernet in your kernel
- DPAA Ethernet Frame Processing
- DPAA Ethernet Features
+ - DPAA IRQ Affinity and Receive Side Scaling
- Debugging
DPAA Ethernet Overview
@@ -147,7 +148,10 @@ gradually.
The driver has Rx and Tx checksum offloading for UDP and TCP. Currently the Rx
checksum offload feature is enabled by default and cannot be controlled through
-ethtool.
+ethtool. Also, rx-flow-hash and rx-hashing was added. The addition of RSS
+provides a big performance boost for the forwarding scenarios, allowing
+different traffic flows received by one interface to be processed by different
+CPUs in parallel.
The driver has support for multiple prioritized Tx traffic classes. Priorities
range from 0 (lowest) to 3 (highest). These are mapped to HW workqueues with
@@ -166,6 +170,68 @@ classes as follows:
tc qdisc add dev <int> root handle 1: \
mqprio num_tc 4 map 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 hw 1
+DPAA IRQ Affinity and Receive Side Scaling
+==========================================
+
+Traffic coming on the DPAA Rx queues or on the DPAA Tx confirmation
+queues is seen by the CPU as ingress traffic on a certain portal.
+The DPAA QMan portal interrupts are affined each to a certain CPU.
+The same portal interrupt services all the QMan portal consumers.
+
+By default the DPAA Ethernet driver enables RSS, making use of the
+DPAA FMan Parser and Keygen blocks to distribute traffic on 128
+hardware frame queues using a hash on IP v4/v6 source and destination
+and L4 source and destination ports, in present in the received frame.
+When RSS is disabled, all traffic received by a certain interface is
+received on the default Rx frame queue. The default DPAA Rx frame
+queues are configured to put the received traffic into a pool channel
+that allows any available CPU portal to dequeue the ingress traffic.
+The default frame queues have the HOLDACTIVE option set, ensuring that
+traffic bursts from a certain queue are serviced by the same CPU.
+This ensures a very low rate of frame reordering. A drawback of this
+is that only one CPU at a time can service the traffic received by a
+certain interface when RSS is not enabled.
+
+To implement RSS, the DPAA Ethernet driver allocates an extra set of
+128 Rx frame queues that are configured to dedicated channels, in a
+round-robin manner. The mapping of the frame queues to CPUs is now
+hardcoded, there is no indirection table to move traffic for a certain
+FQ (hash result) to another CPU. The ingress traffic arriving on one
+of these frame queues will arrive at the same portal and will always
+be processed by the same CPU. This ensures intra-flow order preservation
+and workload distribution for multiple traffic flows.
+
+RSS can be turned off for a certain interface using ethtool, i.e.
+
+ # ethtool -N fm1-mac9 rx-flow-hash tcp4 ""
+
+To turn it back on, one needs to set rx-flow-hash for tcp4/6 or udp4/6:
+
+ # ethtool -N fm1-mac9 rx-flow-hash udp4 sfdn
+
+There is no independent control for individual protocols, any command
+run for one of tcp4|udp4|ah4|esp4|sctp4|tcp6|udp6|ah6|esp6|sctp6 is
+going to control the rx-flow-hashing for all protocols on that interface.
+
+Besides using the FMan Keygen computed hash for spreading traffic on the
+128 Rx FQs, the DPAA Ethernet driver also sets the skb hash value when
+the NETIF_F_RXHASH feature is on (active by default). This can be turned
+on or off through ethtool, i.e.:
+
+ # ethtool -K fm1-mac9 rx-hashing off
+ # ethtool -k fm1-mac9 | grep hash
+ receive-hashing: off
+ # ethtool -K fm1-mac9 rx-hashing on
+ Actual changes:
+ receive-hashing: on
+ # ethtool -k fm1-mac9 | grep hash
+ receive-hashing: on
+
+Please note that Rx hashing depends upon the rx-flow-hashing being on
+for that interface - turning off rx-flow-hashing will also disable the
+rx-hashing (without ethtool reporting it as off as that depends on the
+NETIF_F_RXHASH feature flag).
+
Debugging
=========
diff --git a/Documentation/networking/filter.txt b/Documentation/networking/filter.txt
index b69b205501de..87814859cfc2 100644
--- a/Documentation/networking/filter.txt
+++ b/Documentation/networking/filter.txt
@@ -45,7 +45,7 @@ in many more places. There's xt_bpf for netfilter, cls_bpf in the kernel
qdisc layer, SECCOMP-BPF (SECure COMPuting [1]), and lots of other places
such as team driver, PTP code, etc where BPF is being used.
- [1] Documentation/prctl/seccomp_filter.txt
+ [1] Documentation/userspace-api/seccomp_filter.rst
Original BPF paper:
@@ -337,7 +337,7 @@ Examples for low-level BPF:
jeq #14, good /* __NR_rt_sigprocmask */
jeq #13, good /* __NR_rt_sigaction */
jeq #35, good /* __NR_nanosleep */
- bad: ret #0 /* SECCOMP_RET_KILL */
+ bad: ret #0 /* SECCOMP_RET_KILL_THREAD */
good: ret #0x7fff0000 /* SECCOMP_RET_ALLOW */
The above example code can be placed into a file (here called "foo"), and
@@ -596,8 +596,8 @@ skb pointer). All constraints and restrictions from bpf_check_classic() apply
before a conversion to the new layout is being done behind the scenes!
Currently, the classic BPF format is being used for JITing on most 32-bit
-architectures, whereas x86-64, aarch64, s390x, powerpc64, sparc64 perform JIT
-compilation from eBPF instruction set.
+architectures, whereas x86-64, aarch64, s390x, powerpc64, sparc64, arm32 perform
+JIT compilation from eBPF instruction set.
Some core changes of the new internal format:
@@ -793,7 +793,7 @@ Some core changes of the new internal format:
bpf_exit
After the call the registers R1-R5 contain junk values and cannot be read.
- In the future an eBPF verifier can be used to validate internal BPF programs.
+ An in-kernel eBPF verifier is used to validate internal BPF programs.
Also in the new design, eBPF is limited to 4096 insns, which means that any
program will terminate quickly and will only call a fixed number of kernel
@@ -906,6 +906,10 @@ If BPF_CLASS(code) == BPF_JMP, BPF_OP(code) is one of:
BPF_JSGE 0x70 /* eBPF only: signed '>=' */
BPF_CALL 0x80 /* eBPF only: function call */
BPF_EXIT 0x90 /* eBPF only: function return */
+ BPF_JLT 0xa0 /* eBPF only: unsigned '<' */
+ BPF_JLE 0xb0 /* eBPF only: unsigned '<=' */
+ BPF_JSLT 0xc0 /* eBPF only: signed '<' */
+ BPF_JSLE 0xd0 /* eBPF only: signed '<=' */
So BPF_ADD | BPF_X | BPF_ALU means 32-bit addition in both classic BPF
and eBPF. There are only two registers in classic BPF, so it means A += X.
@@ -1017,7 +1021,7 @@ At the start of the program the register R1 contains a pointer to context
and has type PTR_TO_CTX.
If verifier sees an insn that does R2=R1, then R2 has now type
PTR_TO_CTX as well and can be used on the right hand side of expression.
-If R1=PTR_TO_CTX and insn is R2=R1+R1, then R2=UNKNOWN_VALUE,
+If R1=PTR_TO_CTX and insn is R2=R1+R1, then R2=SCALAR_VALUE,
since addition of two valid pointers makes invalid pointer.
(In 'secure' mode verifier will reject any type of pointer arithmetic to make
sure that kernel addresses don't leak to unprivileged users)
@@ -1039,7 +1043,7 @@ is a correct program. If there was R1 instead of R6, it would have
been rejected.
load/store instructions are allowed only with registers of valid types, which
-are PTR_TO_CTX, PTR_TO_MAP, FRAME_PTR. They are bounds and alignment checked.
+are PTR_TO_CTX, PTR_TO_MAP, PTR_TO_STACK. They are bounds and alignment checked.
For example:
bpf_mov R1 = 1
bpf_mov R2 = 2
@@ -1058,7 +1062,7 @@ intends to load a word from address R6 + 8 and store it into R0
If R6=PTR_TO_CTX, via is_valid_access() callback the verifier will know
that offset 8 of size 4 bytes can be accessed for reading, otherwise
the verifier will reject the program.
-If R6=FRAME_PTR, then access should be aligned and be within
+If R6=PTR_TO_STACK, then access should be aligned and be within
stack bounds, which are [-MAX_BPF_STACK, 0). In this example offset is 8,
so it will fail verification, since it's out of bounds.
@@ -1069,7 +1073,7 @@ For example:
bpf_ld R0 = *(u32 *)(R10 - 4)
bpf_exit
is invalid program.
-Though R10 is correct read-only register and has type FRAME_PTR
+Though R10 is correct read-only register and has type PTR_TO_STACK
and R10 - 4 is within stack bounds, there were no stores into that location.
Pointer register spill/fill is tracked as well, since four (R6-R9)
@@ -1094,6 +1098,71 @@ all use cases.
See details of eBPF verifier in kernel/bpf/verifier.c
+Register value tracking
+-----------------------
+In order to determine the safety of an eBPF program, the verifier must track
+the range of possible values in each register and also in each stack slot.
+This is done with 'struct bpf_reg_state', defined in include/linux/
+bpf_verifier.h, which unifies tracking of scalar and pointer values. Each
+register state has a type, which is either NOT_INIT (the register has not been
+written to), SCALAR_VALUE (some value which is not usable as a pointer), or a
+pointer type. The types of pointers describe their base, as follows:
+ PTR_TO_CTX Pointer to bpf_context.
+ CONST_PTR_TO_MAP Pointer to struct bpf_map. "Const" because arithmetic
+ on these pointers is forbidden.
+ PTR_TO_MAP_VALUE Pointer to the value stored in a map element.
+ PTR_TO_MAP_VALUE_OR_NULL
+ Either a pointer to a map value, or NULL; map accesses
+ (see section 'eBPF maps', below) return this type,
+ which becomes a PTR_TO_MAP_VALUE when checked != NULL.
+ Arithmetic on these pointers is forbidden.
+ PTR_TO_STACK Frame pointer.
+ PTR_TO_PACKET skb->data.
+ PTR_TO_PACKET_END skb->data + headlen; arithmetic forbidden.
+However, a pointer may be offset from this base (as a result of pointer
+arithmetic), and this is tracked in two parts: the 'fixed offset' and 'variable
+offset'. The former is used when an exactly-known value (e.g. an immediate
+operand) is added to a pointer, while the latter is used for values which are
+not exactly known. The variable offset is also used in SCALAR_VALUEs, to track
+the range of possible values in the register.
+The verifier's knowledge about the variable offset consists of:
+* minimum and maximum values as unsigned
+* minimum and maximum values as signed
+* knowledge of the values of individual bits, in the form of a 'tnum': a u64
+'mask' and a u64 'value'. 1s in the mask represent bits whose value is unknown;
+1s in the value represent bits known to be 1. Bits known to be 0 have 0 in both
+mask and value; no bit should ever be 1 in both. For example, if a byte is read
+into a register from memory, the register's top 56 bits are known zero, while
+the low 8 are unknown - which is represented as the tnum (0x0; 0xff). If we
+then OR this with 0x40, we get (0x40; 0xcf), then if we add 1 we get (0x0;
+0x1ff), because of potential carries.
+Besides arithmetic, the register state can also be updated by conditional
+branches. For instance, if a SCALAR_VALUE is compared > 8, in the 'true' branch
+it will have a umin_value (unsigned minimum value) of 9, whereas in the 'false'
+branch it will have a umax_value of 8. A signed compare (with BPF_JSGT or
+BPF_JSGE) would instead update the signed minimum/maximum values. Information
+from the signed and unsigned bounds can be combined; for instance if a value is
+first tested < 8 and then tested s> 4, the verifier will conclude that the value
+is also > 4 and s< 8, since the bounds prevent crossing the sign boundary.
+PTR_TO_PACKETs with a variable offset part have an 'id', which is common to all
+pointers sharing that same variable offset. This is important for packet range
+checks: after adding some variable to a packet pointer, if you then copy it to
+another register and (say) add a constant 4, both registers will share the same
+'id' but one will have a fixed offset of +4. Then if it is bounds-checked and
+found to be less than a PTR_TO_PACKET_END, the other register is now known to
+have a safe range of at least 4 bytes. See 'Direct packet access', below, for
+more on PTR_TO_PACKET ranges.
+The 'id' field is also used on PTR_TO_MAP_VALUE_OR_NULL, common to all copies of
+the pointer returned from a map lookup. This means that when one copy is
+checked and found to be non-NULL, all copies can become PTR_TO_MAP_VALUEs.
+As well as range-checking, the tracked information is also used for enforcing
+alignment of pointer accesses. For instance, on most systems the packet pointer
+is 2 bytes after a 4-byte alignment. If a program adds 14 bytes to that to jump
+over the Ethernet header, then reads IHL and addes (IHL * 4), the resulting
+pointer will have a variable offset known to be 4n+2 for some n, so adding the 2
+bytes (NET_IP_ALIGN) gives a 4-byte alignment and so word-sized accesses through
+that pointer are safe.
+
Direct packet access
--------------------
In cls_bpf and act_bpf programs the verifier allows direct access to the packet
@@ -1121,7 +1190,7 @@ it now points to 'skb->data + 14' and accessible range is [R5, R5 + 14 - 14)
which is zero bytes.
More complex packet access may look like:
- R0=imm1 R1=ctx R3=pkt(id=0,off=0,r=14) R4=pkt_end R5=pkt(id=0,off=14,r=14) R10=fp
+ R0=inv1 R1=ctx R3=pkt(id=0,off=0,r=14) R4=pkt_end R5=pkt(id=0,off=14,r=14) R10=fp
6: r0 = *(u8 *)(r3 +7) /* load 7th byte from the packet */
7: r4 = *(u8 *)(r3 +12)
8: r4 *= 14
@@ -1135,26 +1204,31 @@ More complex packet access may look like:
16: r2 += 8
17: r1 = *(u32 *)(r1 +80) /* load skb->data_end */
18: if r2 > r1 goto pc+2
- R0=inv56 R1=pkt_end R2=pkt(id=2,off=8,r=8) R3=pkt(id=2,off=0,r=8) R4=inv52 R5=pkt(id=0,off=14,r=14) R10=fp
+ R0=inv(id=0,umax_value=255,var_off=(0x0; 0xff)) R1=pkt_end R2=pkt(id=2,off=8,r=8) R3=pkt(id=2,off=0,r=8) R4=inv(id=0,umax_value=3570,var_off=(0x0; 0xfffe)) R5=pkt(id=0,off=14,r=14) R10=fp
19: r1 = *(u8 *)(r3 +4)
The state of the register R3 is R3=pkt(id=2,off=0,r=8)
id=2 means that two 'r3 += rX' instructions were seen, so r3 points to some
offset within a packet and since the program author did
'if (r3 + 8 > r1) goto err' at insn #18, the safe range is [R3, R3 + 8).
-The verifier only allows 'add' operation on packet registers. Any other
-operation will set the register state to 'unknown_value' and it won't be
+The verifier only allows 'add'/'sub' operations on packet registers. Any other
+operation will set the register state to 'SCALAR_VALUE' and it won't be
available for direct packet access.
Operation 'r3 += rX' may overflow and become less than original skb->data,
-therefore the verifier has to prevent that. So it tracks the number of
-upper zero bits in all 'uknown_value' registers, so when it sees
-'r3 += rX' instruction and rX is more than 16-bit value, it will error as:
-"cannot add integer value with N upper zero bits to ptr_to_packet"
+therefore the verifier has to prevent that. So when it sees 'r3 += rX'
+instruction and rX is more than 16-bit value, any subsequent bounds-check of r3
+against skb->data_end will not give us 'range' information, so attempts to read
+through the pointer will give "invalid access to packet" error.
Ex. after insn 'r4 = *(u8 *)(r3 +12)' (insn #7 above) the state of r4 is
-R4=inv56 which means that upper 56 bits on the register are guaranteed
-to be zero. After insn 'r4 *= 14' the state becomes R4=inv52, since
-multiplying 8-bit value by constant 14 will keep upper 52 bits as zero.
-Similarly 'r2 >>= 48' will make R2=inv48, since the shift is not sign
-extending. This logic is implemented in evaluate_reg_alu() function.
+R4=inv(id=0,umax_value=255,var_off=(0x0; 0xff)) which means that upper 56 bits
+of the register are guaranteed to be zero, and nothing is known about the lower
+8 bits. After insn 'r4 *= 14' the state becomes
+R4=inv(id=0,umax_value=3570,var_off=(0x0; 0xfffe)), since multiplying an 8-bit
+value by constant 14 will keep upper 52 bits as zero, also the least significant
+bit will be zero as 14 is even. Similarly 'r2 >>= 48' will make
+R2=inv(id=0,umax_value=65535,var_off=(0x0; 0xffff)), since the shift is not sign
+extending. This logic is implemented in adjust_reg_min_max_vals() function,
+which calls adjust_ptr_min_max_vals() for adding pointer to scalar (or vice
+versa) and adjust_scalar_min_max_vals() for operations on two scalars.
The end result is that bpf program author can access packet directly
using normal C code as:
@@ -1214,6 +1288,22 @@ The map is defined by:
. key size in bytes
. value size in bytes
+Pruning
+-------
+The verifier does not actually walk all possible paths through the program. For
+each new branch to analyse, the verifier looks at all the states it's previously
+been in when at this instruction. If any of them contain the current state as a
+subset, the branch is 'pruned' - that is, the fact that the previous state was
+accepted implies the current state would be as well. For instance, if in the
+previous state, r1 held a packet-pointer, and in the current state, r1 holds a
+packet-pointer with a range as long or longer and at least as strict an
+alignment, then r1 is safe. Similarly, if r2 was NOT_INIT before then it can't
+have been used by any path from that point, so any value in r2 (including
+another NOT_INIT) is safe. The implementation is in the function regsafe().
+Pruning considers not only the registers but also the stack (and any spilled
+registers it may hold). They must all be safe for the branch to be pruned.
+This is implemented in states_equal().
+
Understanding eBPF verifier messages
------------------------------------
diff --git a/Documentation/networking/hinic.txt b/Documentation/networking/hinic.txt
new file mode 100644
index 000000000000..989366a4039c
--- /dev/null
+++ b/Documentation/networking/hinic.txt
@@ -0,0 +1,125 @@
+Linux Kernel Driver for Huawei Intelligent NIC(HiNIC) family
+============================================================
+
+Overview:
+=========
+HiNIC is a network interface card for the Data Center Area.
+
+The driver supports a range of link-speed devices (10GbE, 25GbE, 40GbE, etc.).
+The driver supports also a negotiated and extendable feature set.
+
+Some HiNIC devices support SR-IOV. This driver is used for Physical Function
+(PF).
+
+HiNIC devices support MSI-X interrupt vector for each Tx/Rx queue and
+adaptive interrupt moderation.
+
+HiNIC devices support also various offload features such as checksum offload,
+TCP Transmit Segmentation Offload(TSO), Receive-Side Scaling(RSS) and
+LRO(Large Receive Offload).
+
+
+Supported PCI vendor ID/device IDs:
+===================================
+
+19e5:1822 - HiNIC PF
+
+
+Driver Architecture and Source Code:
+====================================
+
+hinic_dev - Implement a Logical Network device that is independent from
+specific HW details about HW data structure formats.
+
+hinic_hwdev - Implement the HW details of the device and include the components
+for accessing the PCI NIC.
+
+hinic_hwdev contains the following components:
+===============================================
+
+HW Interface:
+=============
+
+The interface for accessing the pci device (DMA memory and PCI BARs).
+(hinic_hw_if.c, hinic_hw_if.h)
+
+Configuration Status Registers Area that describes the HW Registers on the
+configuration and status BAR0. (hinic_hw_csr.h)
+
+MGMT components:
+================
+
+Asynchronous Event Queues(AEQs) - The event queues for receiving messages from
+the MGMT modules on the cards. (hinic_hw_eqs.c, hinic_hw_eqs.h)
+
+Application Programmable Interface commands(API CMD) - Interface for sending
+MGMT commands to the card. (hinic_hw_api_cmd.c, hinic_hw_api_cmd.h)
+
+Management (MGMT) - the PF to MGMT channel that uses API CMD for sending MGMT
+commands to the card and receives notifications from the MGMT modules on the
+card by AEQs. Also set the addresses of the IO CMDQs in HW.
+(hinic_hw_mgmt.c, hinic_hw_mgmt.h)
+
+IO components:
+==============
+
+Completion Event Queues(CEQs) - The completion Event Queues that describe IO
+tasks that are finished. (hinic_hw_eqs.c, hinic_hw_eqs.h)
+
+Work Queues(WQ) - Contain the memory and operations for use by CMD queues and
+the Queue Pairs. The WQ is a Memory Block in a Page. The Block contains
+pointers to Memory Areas that are the Memory for the Work Queue Elements(WQEs).
+(hinic_hw_wq.c, hinic_hw_wq.h)
+
+Command Queues(CMDQ) - The queues for sending commands for IO management and is
+used to set the QPs addresses in HW. The commands completion events are
+accumulated on the CEQ that is configured to receive the CMDQ completion events.
+(hinic_hw_cmdq.c, hinic_hw_cmdq.h)
+
+Queue Pairs(QPs) - The HW Receive and Send queues for Receiving and Transmitting
+Data. (hinic_hw_qp.c, hinic_hw_qp.h, hinic_hw_qp_ctxt.h)
+
+IO - de/constructs all the IO components. (hinic_hw_io.c, hinic_hw_io.h)
+
+HW device:
+==========
+
+HW device - de/constructs the HW Interface, the MGMT components on the
+initialization of the driver and the IO components on the case of Interface
+UP/DOWN Events. (hinic_hw_dev.c, hinic_hw_dev.h)
+
+
+hinic_dev contains the following components:
+===============================================
+
+PCI ID table - Contains the supported PCI Vendor/Device IDs.
+(hinic_pci_tbl.h)
+
+Port Commands - Send commands to the HW device for port management
+(MAC, Vlan, MTU, ...). (hinic_port.c, hinic_port.h)
+
+Tx Queues - Logical Tx Queues that use the HW Send Queues for transmit.
+The Logical Tx queue is not dependent on the format of the HW Send Queue.
+(hinic_tx.c, hinic_tx.h)
+
+Rx Queues - Logical Rx Queues that use the HW Receive Queues for receive.
+The Logical Rx queue is not dependent on the format of the HW Receive Queue.
+(hinic_rx.c, hinic_rx.h)
+
+hinic_dev - de/constructs the Logical Tx and Rx Queues.
+(hinic_main.c, hinic_dev.h)
+
+
+Miscellaneous:
+=============
+
+Common functions that are used by HW and Logical Device.
+(hinic_common.c, hinic_common.h)
+
+
+Support
+=======
+
+If an issue is identified with the released source code on the supported kernel
+with a supported adapter, email the specific information related to the issue to
+aviad.krawczyk@huawei.com.
diff --git a/Documentation/networking/i40evf.txt b/Documentation/networking/i40evf.txt
index 21e41271af79..e9b3035b95d0 100644
--- a/Documentation/networking/i40evf.txt
+++ b/Documentation/networking/i40evf.txt
@@ -1,8 +1,8 @@
Linux* Base Driver for Intel(R) Network Connection
==================================================
-Intel XL710 X710 Virtual Function Linux driver.
-Copyright(c) 2013 Intel Corporation.
+Intel Ethernet Adaptive Virtual Function Linux driver.
+Copyright(c) 2013-2017 Intel Corporation.
Contents
========
@@ -11,19 +11,26 @@ Contents
- Known Issues/Troubleshooting
- Support
-This file describes the i40evf Linux* Base Driver for the Intel(R) XL710
-X710 Virtual Function.
+This file describes the i40evf Linux* Base Driver.
-The i40evf driver supports XL710 and X710 virtual function devices that
-can only be activated on kernels with CONFIG_PCI_IOV enabled.
+The i40evf driver supports the below mentioned virtual function
+devices and can only be activated on kernels running the i40e or
+newer Physical Function (PF) driver compiled with CONFIG_PCI_IOV.
+The i40evf driver requires CONFIG_PCI_MSI to be enabled.
The guest OS loading the i40evf driver must support MSI-X interrupts.
+Supported Hardware
+==================
+Intel XL710 X710 Virtual Function
+Intel Ethernet Adaptive Virtual Function
+Intel X722 Virtual Function
+
Identifying Your Adapter
========================
-For more information on how to identify your adapter, go to the Adapter &
-Driver ID Guide at:
+For more information on how to identify your adapter, go to the
+Adapter & Driver ID Guide at:
http://support.intel.com/support/go/network/adapter/idguide.htm
diff --git a/Documentation/networking/ieee802154.txt b/Documentation/networking/ieee802154.txt
index c4114346f054..057e9fdbfac9 100644
--- a/Documentation/networking/ieee802154.txt
+++ b/Documentation/networking/ieee802154.txt
@@ -84,17 +84,17 @@ Device drivers API
==================
The include/net/mac802154.h defines following functions:
- - struct ieee802154_dev *ieee802154_alloc_device
- (size_t priv_size, struct ieee802154_ops *ops):
- allocation of IEEE 802.15.4 compatible device
+ - struct ieee802154_hw *
+ ieee802154_alloc_hw(size_t priv_data_len, const struct ieee802154_ops *ops):
+ allocation of IEEE 802.15.4 compatible hardware device
- - void ieee802154_free_device(struct ieee802154_dev *dev):
- freeing allocated device
+ - void ieee802154_free_hw(struct ieee802154_hw *hw):
+ freeing allocated hardware device
- - int ieee802154_register_device(struct ieee802154_dev *dev):
- register PHY in the system
+ - int ieee802154_register_hw(struct ieee802154_hw *hw):
+ register PHY which is the allocated hardware device, in the system
- - void ieee802154_unregister_device(struct ieee802154_dev *dev):
+ - void ieee802154_unregister_hw(struct ieee802154_hw *hw):
freeing registered PHY
Moreover IEEE 802.15.4 device operations structure should be filled.
diff --git a/Documentation/networking/index.rst b/Documentation/networking/index.rst
new file mode 100644
index 000000000000..66e620866245
--- /dev/null
+++ b/Documentation/networking/index.rst
@@ -0,0 +1,19 @@
+Linux Networking Documentation
+==============================
+
+Contents:
+
+.. toctree::
+ :maxdepth: 2
+
+ batman-adv
+ kapi
+ z8530book
+
+.. only:: subproject
+
+ Indices
+ =======
+
+ * :ref:`genindex`
+
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 974ab47ae53a..77f4de59dc9c 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -109,7 +109,10 @@ neigh/default/unres_qlen_bytes - INTEGER
queued for each unresolved address by other network layers.
(added in linux 3.3)
Setting negative value is meaningless and will return error.
- Default: 65536 Bytes(64KB)
+ Default: SK_WMEM_MAX, (same as net.core.wmem_default).
+ Exact value depends on architecture and kernel options,
+ but should be enough to allow queuing 256 packets
+ of medium size.
neigh/default/unres_qlen - INTEGER
The maximum number of packets which may be queued for each
@@ -119,7 +122,7 @@ neigh/default/unres_qlen - INTEGER
unexpected packet loss. The current default value is calculated
according to default value of unres_qlen_bytes and true size of
packet.
- Default: 31
+ Default: 101
mtu_expires - INTEGER
Time, in seconds, that cached PMTU information is kept.
@@ -353,12 +356,7 @@ tcp_l3mdev_accept - BOOLEAN
compiled with CONFIG_NET_L3_MASTER_DEV.
tcp_low_latency - BOOLEAN
- If set, the TCP stack makes decisions that prefer lower
- latency as opposed to higher throughput. By default, this
- option is not set meaning that higher throughput is preferred.
- An example of an application where this default should be
- changed would be a Beowulf compute cluster.
- Default: 0
+ This is a legacy option, it has no effect anymore.
tcp_max_orphans - INTEGER
Maximal number of TCP sockets not attached to any user file handle,
@@ -1291,8 +1289,7 @@ tag - INTEGER
xfrm4_gc_thresh - INTEGER
The threshold at which we will start garbage collecting for IPv4
destination cache entries. At twice this value the system will
- refuse new allocations. The value must be set below the flowcache
- limit (4096 * number of online cpus) to take effect.
+ refuse new allocations.
igmp_link_local_mcast_reports - BOOLEAN
Enable IGMP reports for link local multicast groups in the
@@ -1356,6 +1353,15 @@ flowlabel_state_ranges - BOOLEAN
FALSE: disabled
Default: true
+flowlabel_reflect - BOOLEAN
+ Automatically reflect the flow label. Needed for Path MTU
+ Discovery to work with Equal Cost Multipath Routing in anycast
+ environments. See RFC 7690 and:
+ https://tools.ietf.org/html/draft-wang-6man-flow-label-reflection-01
+ TRUE: enabled
+ FALSE: disabled
+ Default: FALSE
+
anycast_src_echo_reply - BOOLEAN
Controls the use of anycast addresses as source addresses for ICMPv6
echo reply
@@ -1674,6 +1680,9 @@ accept_dad - INTEGER
2: Enable DAD, and disable IPv6 operation if MAC-based duplicate
link-local address has been found.
+ DAD operation and mode on a given interface will be selected according
+ to the maximum value of conf/{all,interface}/accept_dad.
+
force_tllao - BOOLEAN
Enable sending the target link-layer address option even when
responding to a unicast neighbor solicitation.
@@ -1721,16 +1730,23 @@ suppress_frag_ndisc - INTEGER
optimistic_dad - BOOLEAN
Whether to perform Optimistic Duplicate Address Detection (RFC 4429).
- 0: disabled (default)
- 1: enabled
+ 0: disabled (default)
+ 1: enabled
+
+ Optimistic Duplicate Address Detection for the interface will be enabled
+ if at least one of conf/{all,interface}/optimistic_dad is set to 1,
+ it will be disabled otherwise.
use_optimistic - BOOLEAN
If enabled, do not classify optimistic addresses as deprecated during
source address selection. Preferred addresses will still be chosen
before optimistic addresses, subject to other ranking in the source
address selection algorithm.
- 0: disabled (default)
- 1: enabled
+ 0: disabled (default)
+ 1: enabled
+
+ This will be enabled if at least one of
+ conf/{all,interface}/use_optimistic is set to 1, disabled otherwise.
stable_secret - IPv6 address
This IPv6 address will be used as a secret to generate IPv6
@@ -1778,8 +1794,7 @@ ratelimit - INTEGER
xfrm6_gc_thresh - INTEGER
The threshold at which we will start garbage collecting for IPv6
destination cache entries. At twice this value the system will
- refuse new allocations. The value must be set below the flowcache
- limit (4096 * number of online cpus) to take effect.
+ refuse new allocations.
IPv6 Update by:
diff --git a/Documentation/networking/ipvlan.txt b/Documentation/networking/ipvlan.txt
index 24196cef7c91..1fe42a874aae 100644
--- a/Documentation/networking/ipvlan.txt
+++ b/Documentation/networking/ipvlan.txt
@@ -22,9 +22,9 @@ The driver can be built into the kernel (CONFIG_IPVLAN=y) or as a module
There are no module parameters for this driver and it can be configured
using IProute2/ip utility.
- ip link add link <master-dev> <slave-dev> type ipvlan mode { l2 | l3 | l3s }
+ ip link add link <master-dev> name <slave-dev> type ipvlan mode { l2 | l3 | l3s }
- e.g. ip link add link ipvl0 eth0 type ipvlan mode l2
+ e.g. ip link add link eth0 name ipvl0 type ipvlan mode l2
4. Operating modes:
diff --git a/Documentation/networking/kapi.rst b/Documentation/networking/kapi.rst
new file mode 100644
index 000000000000..580289f345da
--- /dev/null
+++ b/Documentation/networking/kapi.rst
@@ -0,0 +1,147 @@
+=========================================
+Linux Networking and Network Devices APIs
+=========================================
+
+Linux Networking
+================
+
+Networking Base Types
+---------------------
+
+.. kernel-doc:: include/linux/net.h
+ :internal:
+
+Socket Buffer Functions
+-----------------------
+
+.. kernel-doc:: include/linux/skbuff.h
+ :internal:
+
+.. kernel-doc:: include/net/sock.h
+ :internal:
+
+.. kernel-doc:: net/socket.c
+ :export:
+
+.. kernel-doc:: net/core/skbuff.c
+ :export:
+
+.. kernel-doc:: net/core/sock.c
+ :export:
+
+.. kernel-doc:: net/core/datagram.c
+ :export:
+
+.. kernel-doc:: net/core/stream.c
+ :export:
+
+Socket Filter
+-------------
+
+.. kernel-doc:: net/core/filter.c
+ :export:
+
+Generic Network Statistics
+--------------------------
+
+.. kernel-doc:: include/uapi/linux/gen_stats.h
+ :internal:
+
+.. kernel-doc:: net/core/gen_stats.c
+ :export:
+
+.. kernel-doc:: net/core/gen_estimator.c
+ :export:
+
+SUN RPC subsystem
+-----------------
+
+.. kernel-doc:: net/sunrpc/xdr.c
+ :export:
+
+.. kernel-doc:: net/sunrpc/svc_xprt.c
+ :export:
+
+.. kernel-doc:: net/sunrpc/xprt.c
+ :export:
+
+.. kernel-doc:: net/sunrpc/sched.c
+ :export:
+
+.. kernel-doc:: net/sunrpc/socklib.c
+ :export:
+
+.. kernel-doc:: net/sunrpc/stats.c
+ :export:
+
+.. kernel-doc:: net/sunrpc/rpc_pipe.c
+ :export:
+
+.. kernel-doc:: net/sunrpc/rpcb_clnt.c
+ :export:
+
+.. kernel-doc:: net/sunrpc/clnt.c
+ :export:
+
+WiMAX
+-----
+
+.. kernel-doc:: net/wimax/op-msg.c
+ :export:
+
+.. kernel-doc:: net/wimax/op-reset.c
+ :export:
+
+.. kernel-doc:: net/wimax/op-rfkill.c
+ :export:
+
+.. kernel-doc:: net/wimax/stack.c
+ :export:
+
+.. kernel-doc:: include/net/wimax.h
+ :internal:
+
+.. kernel-doc:: include/uapi/linux/wimax.h
+ :internal:
+
+Network device support
+======================
+
+Driver Support
+--------------
+
+.. kernel-doc:: net/core/dev.c
+ :export:
+
+.. kernel-doc:: net/ethernet/eth.c
+ :export:
+
+.. kernel-doc:: net/sched/sch_generic.c
+ :export:
+
+.. kernel-doc:: include/linux/etherdevice.h
+ :internal:
+
+.. kernel-doc:: include/linux/netdevice.h
+ :internal:
+
+PHY Support
+-----------
+
+.. kernel-doc:: drivers/net/phy/phy.c
+ :export:
+
+.. kernel-doc:: drivers/net/phy/phy.c
+ :internal:
+
+.. kernel-doc:: drivers/net/phy/phy_device.c
+ :export:
+
+.. kernel-doc:: drivers/net/phy/phy_device.c
+ :internal:
+
+.. kernel-doc:: drivers/net/phy/mdio_bus.c
+ :export:
+
+.. kernel-doc:: drivers/net/phy/mdio_bus.c
+ :internal:
diff --git a/Documentation/networking/msg_zerocopy.rst b/Documentation/networking/msg_zerocopy.rst
new file mode 100644
index 000000000000..77f6d7e25cfd
--- /dev/null
+++ b/Documentation/networking/msg_zerocopy.rst
@@ -0,0 +1,257 @@
+
+============
+MSG_ZEROCOPY
+============
+
+Intro
+=====
+
+The MSG_ZEROCOPY flag enables copy avoidance for socket send calls.
+The feature is currently implemented for TCP sockets.
+
+
+Opportunity and Caveats
+-----------------------
+
+Copying large buffers between user process and kernel can be
+expensive. Linux supports various interfaces that eschew copying,
+such as sendpage and splice. The MSG_ZEROCOPY flag extends the
+underlying copy avoidance mechanism to common socket send calls.
+
+Copy avoidance is not a free lunch. As implemented, with page pinning,
+it replaces per byte copy cost with page accounting and completion
+notification overhead. As a result, MSG_ZEROCOPY is generally only
+effective at writes over around 10 KB.
+
+Page pinning also changes system call semantics. It temporarily shares
+the buffer between process and network stack. Unlike with copying, the
+process cannot immediately overwrite the buffer after system call
+return without possibly modifying the data in flight. Kernel integrity
+is not affected, but a buggy program can possibly corrupt its own data
+stream.
+
+The kernel returns a notification when it is safe to modify data.
+Converting an existing application to MSG_ZEROCOPY is not always as
+trivial as just passing the flag, then.
+
+
+More Info
+---------
+
+Much of this document was derived from a longer paper presented at
+netdev 2.1. For more in-depth information see that paper and talk,
+the excellent reporting over at LWN.net or read the original code.
+
+ paper, slides, video
+ https://netdevconf.org/2.1/session.html?debruijn
+
+ LWN article
+ https://lwn.net/Articles/726917/
+
+ patchset
+ [PATCH net-next v4 0/9] socket sendmsg MSG_ZEROCOPY
+ http://lkml.kernel.org/r/20170803202945.70750-1-willemdebruijn.kernel@gmail.com
+
+
+Interface
+=========
+
+Passing the MSG_ZEROCOPY flag is the most obvious step to enable copy
+avoidance, but not the only one.
+
+Socket Setup
+------------
+
+The kernel is permissive when applications pass undefined flags to the
+send system call. By default it simply ignores these. To avoid enabling
+copy avoidance mode for legacy processes that accidentally already pass
+this flag, a process must first signal intent by setting a socket option:
+
+::
+
+ if (setsockopt(fd, SOL_SOCKET, SO_ZEROCOPY, &one, sizeof(one)))
+ error(1, errno, "setsockopt zerocopy");
+
+
+Transmission
+------------
+
+The change to send (or sendto, sendmsg, sendmmsg) itself is trivial.
+Pass the new flag.
+
+::
+
+ ret = send(fd, buf, sizeof(buf), MSG_ZEROCOPY);
+
+A zerocopy failure will return -1 with errno ENOBUFS. This happens if
+the socket option was not set, the socket exceeds its optmem limit or
+the user exceeds its ulimit on locked pages.
+
+
+Mixing copy avoidance and copying
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Many workloads have a mixture of large and small buffers. Because copy
+avoidance is more expensive than copying for small packets, the
+feature is implemented as a flag. It is safe to mix calls with the flag
+with those without.
+
+
+Notifications
+-------------
+
+The kernel has to notify the process when it is safe to reuse a
+previously passed buffer. It queues completion notifications on the
+socket error queue, akin to the transmit timestamping interface.
+
+The notification itself is a simple scalar value. Each socket
+maintains an internal unsigned 32-bit counter. Each send call with
+MSG_ZEROCOPY that successfully sends data increments the counter. The
+counter is not incremented on failure or if called with length zero.
+The counter counts system call invocations, not bytes. It wraps after
+UINT_MAX calls.
+
+
+Notification Reception
+~~~~~~~~~~~~~~~~~~~~~~
+
+The below snippet demonstrates the API. In the simplest case, each
+send syscall is followed by a poll and recvmsg on the error queue.
+
+Reading from the error queue is always a non-blocking operation. The
+poll call is there to block until an error is outstanding. It will set
+POLLERR in its output flags. That flag does not have to be set in the
+events field. Errors are signaled unconditionally.
+
+::
+
+ pfd.fd = fd;
+ pfd.events = 0;
+ if (poll(&pfd, 1, -1) != 1 || pfd.revents & POLLERR == 0)
+ error(1, errno, "poll");
+
+ ret = recvmsg(fd, &msg, MSG_ERRQUEUE);
+ if (ret == -1)
+ error(1, errno, "recvmsg");
+
+ read_notification(msg);
+
+The example is for demonstration purpose only. In practice, it is more
+efficient to not wait for notifications, but read without blocking
+every couple of send calls.
+
+Notifications can be processed out of order with other operations on
+the socket. A socket that has an error queued would normally block
+other operations until the error is read. Zerocopy notifications have
+a zero error code, however, to not block send and recv calls.
+
+
+Notification Batching
+~~~~~~~~~~~~~~~~~~~~~
+
+Multiple outstanding packets can be read at once using the recvmmsg
+call. This is often not needed. In each message the kernel returns not
+a single value, but a range. It coalesces consecutive notifications
+while one is outstanding for reception on the error queue.
+
+When a new notification is about to be queued, it checks whether the
+new value extends the range of the notification at the tail of the
+queue. If so, it drops the new notification packet and instead increases
+the range upper value of the outstanding notification.
+
+For protocols that acknowledge data in-order, like TCP, each
+notification can be squashed into the previous one, so that no more
+than one notification is outstanding at any one point.
+
+Ordered delivery is the common case, but not guaranteed. Notifications
+may arrive out of order on retransmission and socket teardown.
+
+
+Notification Parsing
+~~~~~~~~~~~~~~~~~~~~
+
+The below snippet demonstrates how to parse the control message: the
+read_notification() call in the previous snippet. A notification
+is encoded in the standard error format, sock_extended_err.
+
+The level and type fields in the control data are protocol family
+specific, IP_RECVERR or IPV6_RECVERR.
+
+Error origin is the new type SO_EE_ORIGIN_ZEROCOPY. ee_errno is zero,
+as explained before, to avoid blocking read and write system calls on
+the socket.
+
+The 32-bit notification range is encoded as [ee_info, ee_data]. This
+range is inclusive. Other fields in the struct must be treated as
+undefined, bar for ee_code, as discussed below.
+
+::
+
+ struct sock_extended_err *serr;
+ struct cmsghdr *cm;
+
+ cm = CMSG_FIRSTHDR(msg);
+ if (cm->cmsg_level != SOL_IP &&
+ cm->cmsg_type != IP_RECVERR)
+ error(1, 0, "cmsg");
+
+ serr = (void *) CMSG_DATA(cm);
+ if (serr->ee_errno != 0 ||
+ serr->ee_origin != SO_EE_ORIGIN_ZEROCOPY)
+ error(1, 0, "serr");
+
+ printf("completed: %u..%u\n", serr->ee_info, serr->ee_data);
+
+
+Deferred copies
+~~~~~~~~~~~~~~~
+
+Passing flag MSG_ZEROCOPY is a hint to the kernel to apply copy
+avoidance, and a contract that the kernel will queue a completion
+notification. It is not a guarantee that the copy is elided.
+
+Copy avoidance is not always feasible. Devices that do not support
+scatter-gather I/O cannot send packets made up of kernel generated
+protocol headers plus zerocopy user data. A packet may need to be
+converted to a private copy of data deep in the stack, say to compute
+a checksum.
+
+In all these cases, the kernel returns a completion notification when
+it releases its hold on the shared pages. That notification may arrive
+before the (copied) data is fully transmitted. A zerocopy completion
+notification is not a transmit completion notification, therefore.
+
+Deferred copies can be more expensive than a copy immediately in the
+system call, if the data is no longer warm in the cache. The process
+also incurs notification processing cost for no benefit. For this
+reason, the kernel signals if data was completed with a copy, by
+setting flag SO_EE_CODE_ZEROCOPY_COPIED in field ee_code on return.
+A process may use this signal to stop passing flag MSG_ZEROCOPY on
+subsequent requests on the same socket.
+
+
+Implementation
+==============
+
+Loopback
+--------
+
+Data sent to local sockets can be queued indefinitely if the receive
+process does not read its socket. Unbound notification latency is not
+acceptable. For this reason all packets generated with MSG_ZEROCOPY
+that are looped to a local socket will incur a deferred copy. This
+includes looping onto packet sockets (e.g., tcpdump) and tun devices.
+
+
+Testing
+=======
+
+More realistic example code can be found in the kernel source under
+tools/testing/selftests/net/msg_zerocopy.c.
+
+Be cognizant of the loopback constraint. The test can be run between
+a pair of hosts. But if run between a local pair of processes, for
+instance when run with msg_zerocopy.sh between a veth pair across
+namespaces, the test will not show any improvement. For testing, the
+loopback restriction can be temporarily relaxed by making
+skb_orphan_frags_rx identical to skb_orphan_frags.
diff --git a/Documentation/networking/netdev-FAQ.txt b/Documentation/networking/netdev-FAQ.txt
index 247a30ba8e17..cfc66ea72329 100644
--- a/Documentation/networking/netdev-FAQ.txt
+++ b/Documentation/networking/netdev-FAQ.txt
@@ -111,6 +111,14 @@ A: Generally speaking, the patches get triaged quickly (in less than 48h).
patch is a good way to ensure your patch is ignored or pushed to
the bottom of the priority list.
+Q: I submitted multiple versions of the patch series, should I directly update
+ patchwork for the previous versions of these patch series?
+
+A: No, please don't interfere with the patch status on patchwork, leave it to
+ the maintainer to figure out what is the most recent and current version that
+ should be applied. If there is any doubt, the maintainer will reply and ask
+ what should be done.
+
Q: How can I tell what patches are queued up for backporting to the
various stable releases?
diff --git a/Documentation/networking/netvsc.txt b/Documentation/networking/netvsc.txt
new file mode 100644
index 000000000000..93560fb1170a
--- /dev/null
+++ b/Documentation/networking/netvsc.txt
@@ -0,0 +1,75 @@
+Hyper-V network driver
+======================
+
+Compatibility
+=============
+
+This driver is compatible with Windows Server 2012 R2, 2016 and
+Windows 10.
+
+Features
+========
+
+ Checksum offload
+ ----------------
+ The netvsc driver supports checksum offload as long as the
+ Hyper-V host version does. Windows Server 2016 and Azure
+ support checksum offload for TCP and UDP for both IPv4 and
+ IPv6. Windows Server 2012 only supports checksum offload for TCP.
+
+ Receive Side Scaling
+ --------------------
+ Hyper-V supports receive side scaling. For TCP, packets are
+ distributed among available queues based on IP address and port
+ number.
+
+ For UDP, we can switch UDP hash level between L3 and L4 by ethtool
+ command. UDP over IPv4 and v6 can be set differently. The default
+ hash level is L4. We currently only allow switching TX hash level
+ from within the guests.
+
+ On Azure, fragmented UDP packets have high loss rate with L4
+ hashing. Using L3 hashing is recommended in this case.
+
+ For example, for UDP over IPv4 on eth0:
+ To include UDP port numbers in hashing:
+ ethtool -N eth0 rx-flow-hash udp4 sdfn
+ To exclude UDP port numbers in hashing:
+ ethtool -N eth0 rx-flow-hash udp4 sd
+ To show UDP hash level:
+ ethtool -n eth0 rx-flow-hash udp4
+
+ Generic Receive Offload, aka GRO
+ --------------------------------
+ The driver supports GRO and it is enabled by default. GRO coalesces
+ like packets and significantly reduces CPU usage under heavy Rx
+ load.
+
+ SR-IOV support
+ --------------
+ Hyper-V supports SR-IOV as a hardware acceleration option. If SR-IOV
+ is enabled in both the vSwitch and the guest configuration, then the
+ Virtual Function (VF) device is passed to the guest as a PCI
+ device. In this case, both a synthetic (netvsc) and VF device are
+ visible in the guest OS and both NIC's have the same MAC address.
+
+ The VF is enslaved by netvsc device. The netvsc driver will transparently
+ switch the data path to the VF when it is available and up.
+ Network state (addresses, firewall, etc) should be applied only to the
+ netvsc device; the slave device should not be accessed directly in
+ most cases. The exceptions are if some special queue discipline or
+ flow direction is desired, these should be applied directly to the
+ VF slave device.
+
+ Receive Buffer
+ --------------
+ Packets are received into a receive area which is created when device
+ is probed. The receive area is broken into MTU sized chunks and each may
+ contain one or more packets. The number of receive sections may be changed
+ via ethtool Rx ring parameters.
+
+ There is a similar send buffer which is used to aggregate packets for sending.
+ The send area is broken into chunks of 6144 bytes, each of section may
+ contain one or more packets. The send buffer is an optimization, the driver
+ will use slower method to handle very large packets or if the send buffer
+ area is exhausted.
diff --git a/Documentation/networking/nf_conntrack-sysctl.txt b/Documentation/networking/nf_conntrack-sysctl.txt
index 497d668288f9..433b6724797a 100644
--- a/Documentation/networking/nf_conntrack-sysctl.txt
+++ b/Documentation/networking/nf_conntrack-sysctl.txt
@@ -96,17 +96,6 @@ nf_conntrack_max - INTEGER
Size of connection tracking table. Default value is
nf_conntrack_buckets value * 4.
-nf_conntrack_default_on - BOOLEAN
- 0 - don't register conntrack in new net namespaces
- 1 - register conntrack in new net namespaces (default)
-
- This controls wheter newly created network namespaces have connection
- tracking enabled by default. It will be enabled automatically
- regardless of this setting if the new net namespace requires
- connection tracking, e.g. when NAT rules are created.
- This setting is only visible in initial user namespace, it has no
- effect on existing namespaces.
-
nf_conntrack_tcp_be_liberal - BOOLEAN
0 - disabled (default)
not 0 - enabled
diff --git a/Documentation/networking/phy.txt b/Documentation/networking/phy.txt
index 16f90d817224..bdec0f700bc1 100644
--- a/Documentation/networking/phy.txt
+++ b/Documentation/networking/phy.txt
@@ -295,7 +295,6 @@ Doing it all yourself
settings in the PHY.
int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd);
- int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd);
Ethtool convenience functions.
diff --git a/Documentation/networking/policy-routing.txt b/Documentation/networking/policy-routing.txt
deleted file mode 100644
index 36f6936d7f21..000000000000
--- a/Documentation/networking/policy-routing.txt
+++ /dev/null
@@ -1,150 +0,0 @@
-Classes
--------
-
- "Class" is a complete routing table in common sense.
- I.e. it is tree of nodes (destination prefix, tos, metric)
- with attached information: gateway, device etc.
- This tree is looked up as specified in RFC1812 5.2.4.3
- 1. Basic match
- 2. Longest match
- 3. Weak TOS.
- 4. Metric. (should not be in kernel space, but they are)
- 5. Additional pruning rules. (not in kernel space).
-
- We have two special type of nodes:
- REJECT - abort route lookup and return an error value.
- THROW - abort route lookup in this class.
-
-
- Currently the number of classes is limited to 255
- (0 is reserved for "not specified class")
-
- Three classes are builtin:
-
- RT_CLASS_LOCAL=255 - local interface addresses,
- broadcasts, nat addresses.
-
- RT_CLASS_MAIN=254 - all normal routes are put there
- by default.
-
- RT_CLASS_DEFAULT=253 - if ip_fib_model==1, then
- normal default routes are put there, if ip_fib_model==2
- all gateway routes are put there.
-
-
-Rules
------
- Rule is a record of (src prefix, src interface, tos, dst prefix)
- with attached information.
-
- Rule types:
- RTP_ROUTE - lookup in attached class
- RTP_NAT - lookup in attached class and if a match is found,
- translate packet source address.
- RTP_MASQUERADE - lookup in attached class and if a match is found,
- masquerade packet as sourced by us.
- RTP_DROP - silently drop the packet.
- RTP_REJECT - drop the packet and send ICMP NET UNREACHABLE.
- RTP_PROHIBIT - drop the packet and send ICMP COMM. ADM. PROHIBITED.
-
- Rule flags:
- RTRF_LOG - log route creations.
- RTRF_VALVE - One way route (used with masquerading)
-
-Default setup:
-
-root@amber:/pub/ip-routing # iproute -r
-Kernel routing policy rules
-Pref Source Destination TOS Iface Cl
- 0 default default 00 * 255
- 254 default default 00 * 254
- 255 default default 00 * 253
-
-
-Lookup algorithm
-----------------
-
- We scan rules list, and if a rule is matched, apply it.
- If a route is found, return it.
- If it is not found or a THROW node was matched, continue
- to scan rules.
-
-Applications
-------------
-
-1. Just ignore classes. All the routes are put into MAIN class
- (and/or into DEFAULT class).
-
- HOWTO: iproute add PREFIX [ tos TOS ] [ gw GW ] [ dev DEV ]
- [ metric METRIC ] [ reject ] ... (look at iproute utility)
-
- or use route utility from current net-tools.
-
-2. Opposite case. Just forget all that you know about routing
- tables. Every rule is supplied with its own gateway, device
- info. record. This approach is not appropriate for automated
- route maintenance, but it is ideal for manual configuration.
-
- HOWTO: iproute addrule [ from PREFIX ] [ to PREFIX ] [ tos TOS ]
- [ dev INPUTDEV] [ pref PREFERENCE ] route [ gw GATEWAY ]
- [ dev OUTDEV ] .....
-
- Warning: As of now the size of the routing table in this
- approach is limited to 256. If someone likes this model, I'll
- relax this limitation.
-
-3. OSPF classes (see RFC1583, RFC1812 E.3.3)
- Very clean, stable and robust algorithm for OSPF routing
- domains. Unfortunately, it is not widely used in the Internet.
-
- Proposed setup:
- 255 local addresses
- 254 interface routes
- 253 ASE routes with external metric
- 252 ASE routes with internal metric
- 251 inter-area routes
- 250 intra-area routes for 1st area
- 249 intra-area routes for 2nd area
- etc.
-
- Rules:
- iproute addrule class 253
- iproute addrule class 252
- iproute addrule class 251
- iproute addrule to a-prefix-for-1st-area class 250
- iproute addrule to another-prefix-for-1st-area class 250
- ...
- iproute addrule to a-prefix-for-2nd-area class 249
- ...
-
- Area classes must be terminated with reject record.
- iproute add default reject class 250
- iproute add default reject class 249
- ...
-
-4. The Variant Router Requirements Algorithm (RFC1812 E.3.2)
- Create 16 classes for different TOS values.
- It is a funny, but pretty useless algorithm.
- I listed it just to show the power of new routing code.
-
-5. All the variety of combinations......
-
-
-GATED
------
-
- Gated does not understand classes, but it will work
- happily in MAIN+DEFAULT. All policy routes can be set
- and maintained manually.
-
-IMPORTANT NOTE
---------------
- route.c has a compilation time switch CONFIG_IP_LOCAL_RT_POLICY.
- If it is set, locally originated packets are routed
- using all the policy list. This is not very convenient and
- pretty ambiguous when used with NAT and masquerading.
- I set it to FALSE by default.
-
-
-Alexey Kuznetov
-kuznet@ms2.inr.ac.ru
diff --git a/Documentation/networking/rmnet.txt b/Documentation/networking/rmnet.txt
new file mode 100644
index 000000000000..6b341eaf2062
--- /dev/null
+++ b/Documentation/networking/rmnet.txt
@@ -0,0 +1,82 @@
+1. Introduction
+
+rmnet driver is used for supporting the Multiplexing and aggregation
+Protocol (MAP). This protocol is used by all recent chipsets using Qualcomm
+Technologies, Inc. modems.
+
+This driver can be used to register onto any physical network device in
+IP mode. Physical transports include USB, HSIC, PCIe and IP accelerator.
+
+Multiplexing allows for creation of logical netdevices (rmnet devices) to
+handle multiple private data networks (PDN) like a default internet, tethering,
+multimedia messaging service (MMS) or IP media subsystem (IMS). Hardware sends
+packets with MAP headers to rmnet. Based on the multiplexer id, rmnet
+routes to the appropriate PDN after removing the MAP header.
+
+Aggregation is required to achieve high data rates. This involves hardware
+sending aggregated bunch of MAP frames. rmnet driver will de-aggregate
+these MAP frames and send them to appropriate PDN's.
+
+2. Packet format
+
+a. MAP packet (data / control)
+
+MAP header has the same endianness of the IP packet.
+
+Packet format -
+
+Bit 0 1 2-7 8 - 15 16 - 31
+Function Command / Data Reserved Pad Multiplexer ID Payload length
+Bit 32 - x
+Function Raw Bytes
+
+Command (1)/ Data (0) bit value is to indicate if the packet is a MAP command
+or data packet. Control packet is used for transport level flow control. Data
+packets are standard IP packets.
+
+Reserved bits are usually zeroed out and to be ignored by receiver.
+
+Padding is number of bytes to be added for 4 byte alignment if required by
+hardware.
+
+Multiplexer ID is to indicate the PDN on which data has to be sent.
+
+Payload length includes the padding length but does not include MAP header
+length.
+
+b. MAP packet (command specific)
+
+Bit 0 1 2-7 8 - 15 16 - 31
+Function Command Reserved Pad Multiplexer ID Payload length
+Bit 32 - 39 40 - 45 46 - 47 48 - 63
+Function Command name Reserved Command Type Reserved
+Bit 64 - 95
+Function Transaction ID
+Bit 96 - 127
+Function Command data
+
+Command 1 indicates disabling flow while 2 is enabling flow
+
+Command types -
+0 for MAP command request
+1 is to acknowledge the receipt of a command
+2 is for unsupported commands
+3 is for error during processing of commands
+
+c. Aggregation
+
+Aggregation is multiple MAP packets (can be data or command) delivered to
+rmnet in a single linear skb. rmnet will process the individual
+packets and either ACK the MAP command or deliver the IP packet to the
+network stack as needed
+
+MAP header|IP Packet|Optional padding|MAP header|IP Packet|Optional padding....
+MAP header|IP Packet|Optional padding|MAP header|Command Packet|Optional pad...
+
+3. Userspace configuration
+
+rmnet userspace configuration is done through netlink library librmnetctl
+and command line utility rmnetcli. Utility is hosted in codeaurora forum git.
+The driver uses rtnl_link_ops for communication.
+
+https://source.codeaurora.org/quic/la/platform/vendor/qcom-opensource/dataservices/tree/rmnetctl
diff --git a/Documentation/networking/rxrpc.txt b/Documentation/networking/rxrpc.txt
index 1b63bbc6b94f..810620153a44 100644
--- a/Documentation/networking/rxrpc.txt
+++ b/Documentation/networking/rxrpc.txt
@@ -325,6 +325,9 @@ calls, to invoke certain actions and to report certain conditions. These are:
RXRPC_LOCAL_ERROR -rt error num Local error encountered
RXRPC_NEW_CALL -r- n/a New call received
RXRPC_ACCEPT s-- n/a Accept new call
+ RXRPC_EXCLUSIVE_CALL s-- n/a Make an exclusive client call
+ RXRPC_UPGRADE_SERVICE s-- n/a Client call can be upgraded
+ RXRPC_TX_LENGTH s-- data len Total length of Tx data
(SRT = usable in Sendmsg / delivered by Recvmsg / Terminal message)
@@ -387,6 +390,40 @@ calls, to invoke certain actions and to report certain conditions. These are:
return error ENODATA. If the user ID is already in use by another call,
then error EBADSLT will be returned.
+ (*) RXRPC_EXCLUSIVE_CALL
+
+ This is used to indicate that a client call should be made on a one-off
+ connection. The connection is discarded once the call has terminated.
+
+ (*) RXRPC_UPGRADE_SERVICE
+
+ This is used to make a client call to probe if the specified service ID
+ may be upgraded by the server. The caller must check msg_name returned to
+ recvmsg() for the service ID actually in use. The operation probed must
+ be one that takes the same arguments in both services.
+
+ Once this has been used to establish the upgrade capability (or lack
+ thereof) of the server, the service ID returned should be used for all
+ future communication to that server and RXRPC_UPGRADE_SERVICE should no
+ longer be set.
+
+ (*) RXRPC_TX_LENGTH
+
+ This is used to inform the kernel of the total amount of data that is
+ going to be transmitted by a call (whether in a client request or a
+ service response). If given, it allows the kernel to encrypt from the
+ userspace buffer directly to the packet buffers, rather than copying into
+ the buffer and then encrypting in place. This may only be given with the
+ first sendmsg() providing data for a call. EMSGSIZE will be generated if
+ the amount of data actually given is different.
+
+ This takes a parameter of __s64 type that indicates how much will be
+ transmitted. This may not be less than zero.
+
+The symbol RXRPC__SUPPORTED is defined as one more than the highest control
+message type supported. At run time this can be queried by means of the
+RXRPC_SUPPORTED_CMSG socket option (see below).
+
==============
SOCKET OPTIONS
@@ -433,6 +470,18 @@ AF_RXRPC sockets support a few socket options at the SOL_RXRPC level:
Encrypted checksum plus entire packet padded and encrypted, including
actual packet length.
+ (*) RXRPC_UPGRADEABLE_SERVICE
+
+ This is used to indicate that a service socket with two bindings may
+ upgrade one bound service to the other if requested by the client. optval
+ must point to an array of two unsigned short ints. The first is the
+ service ID to upgrade from and the second the service ID to upgrade to.
+
+ (*) RXRPC_SUPPORTED_CMSG
+
+ This is a read-only option that writes an int into the buffer indicating
+ the highest control message type supported.
+
========
SECURITY
@@ -542,6 +591,9 @@ A client would issue an operation by:
MSG_MORE should be set in msghdr::msg_flags on all but the last part of
the request. Multiple requests may be made simultaneously.
+ An RXRPC_TX_LENGTH control message can also be specified on the first
+ sendmsg() call.
+
If a call is intended to go to a destination other than the default
specified through connect(), then msghdr::msg_name should be set on the
first request message of that call.
@@ -559,6 +611,17 @@ A client would issue an operation by:
buffer instead, and MSG_EOR will be flagged to indicate the end of that
call.
+A client may ask for a service ID it knows and ask that this be upgraded to a
+better service if one is available by supplying RXRPC_UPGRADE_SERVICE on the
+first sendmsg() of a call. The client should then check srx_service in the
+msg_name filled in by recvmsg() when collecting the result. srx_service will
+hold the same value as given to sendmsg() if the upgrade request was ignored by
+the service - otherwise it will be altered to indicate the service ID the
+server upgraded to. Note that the upgraded service ID is chosen by the server.
+The caller has to wait until it sees the service ID in the reply before sending
+any more calls (further calls to the same destination will be blocked until the
+probe is concluded).
+
====================
EXAMPLE SERVER USAGE
@@ -588,7 +651,7 @@ A server would be set up to accept operations in the following manner:
The keyring can be manipulated after it has been given to the socket. This
permits the server to add more keys, replace keys, etc. whilst it is live.
- (2) A local address must then be bound:
+ (3) A local address must then be bound:
struct sockaddr_rxrpc srx = {
.srx_family = AF_RXRPC,
@@ -600,11 +663,26 @@ A server would be set up to accept operations in the following manner:
};
bind(server, &srx, sizeof(srx));
- (3) The server is then set to listen out for incoming calls:
+ More than one service ID may be bound to a socket, provided the transport
+ parameters are the same. The limit is currently two. To do this, bind()
+ should be called twice.
+
+ (4) If service upgrading is required, first two service IDs must have been
+ bound and then the following option must be set:
+
+ unsigned short service_ids[2] = { from_ID, to_ID };
+ setsockopt(server, SOL_RXRPC, RXRPC_UPGRADEABLE_SERVICE,
+ service_ids, sizeof(service_ids));
+
+ This will automatically upgrade connections on service from_ID to service
+ to_ID if they request it. This will be reflected in msg_name obtained
+ through recvmsg() when the request data is delivered to userspace.
+
+ (5) The server is then set to listen out for incoming calls:
listen(server, 100);
- (4) The kernel notifies the server of pending incoming connections by sending
+ (6) The kernel notifies the server of pending incoming connections by sending
it a message for each. This is received with recvmsg() on the server
socket. It has no data, and has a single dataless control message
attached:
@@ -616,13 +694,13 @@ A server would be set up to accept operations in the following manner:
the time it is accepted - in which case the first call still on the queue
will be accepted.
- (5) The server then accepts the new call by issuing a sendmsg() with two
+ (7) The server then accepts the new call by issuing a sendmsg() with two
pieces of control data and no actual data:
RXRPC_ACCEPT - indicate connection acceptance
RXRPC_USER_CALL_ID - specify user ID for this call
- (6) The first request data packet will then be posted to the server socket for
+ (8) The first request data packet will then be posted to the server socket for
recvmsg() to pick up. At that point, the RxRPC address for the call can
be read from the address fields in the msghdr struct.
@@ -634,7 +712,7 @@ A server would be set up to accept operations in the following manner:
RXRPC_USER_CALL_ID - specifies the user ID for this call
- (8) The reply data should then be posted to the server socket using a series
+ (9) The reply data should then be posted to the server socket using a series
of sendmsg() calls, each with the following control messages attached:
RXRPC_USER_CALL_ID - specifies the user ID for this call
@@ -642,7 +720,7 @@ A server would be set up to accept operations in the following manner:
MSG_MORE should be set in msghdr::msg_flags on all but the last message
for a particular call.
- (9) The final ACK from the client will be posted for retrieval by recvmsg()
+(10) The final ACK from the client will be posted for retrieval by recvmsg()
when it is received. It will take the form of a dataless message with two
control messages attached:
@@ -652,7 +730,7 @@ A server would be set up to accept operations in the following manner:
MSG_EOR will be flagged to indicate that this is the final message for
this call.
-(10) Up to the point the final packet of reply data is sent, the call can be
+(11) Up to the point the final packet of reply data is sent, the call can be
aborted by calling sendmsg() with a dataless message with the following
control messages attached:
@@ -703,6 +781,7 @@ The kernel interface functions are as follows:
struct sockaddr_rxrpc *srx,
struct key *key,
unsigned long user_call_ID,
+ s64 tx_total_len,
gfp_t gfp);
This allocates the infrastructure to make a new RxRPC call and assigns
@@ -719,6 +798,11 @@ The kernel interface functions are as follows:
control data buffer. It is entirely feasible to use this to point to a
kernel data structure.
+ tx_total_len is the amount of data the caller is intending to transmit
+ with this call (or -1 if unknown at this point). Setting the data size
+ allows the kernel to encrypt directly to the packet buffers, thereby
+ saving a copy. The value may not be less than -1.
+
If this function is successful, an opaque reference to the RxRPC call is
returned. The caller now holds a reference on this and it must be
properly ended.
@@ -734,10 +818,15 @@ The kernel interface functions are as follows:
(*) Send data through a call.
+ typedef void (*rxrpc_notify_end_tx_t)(struct sock *sk,
+ unsigned long user_call_ID,
+ struct sk_buff *skb);
+
int rxrpc_kernel_send_data(struct socket *sock,
struct rxrpc_call *call,
struct msghdr *msg,
- size_t len);
+ size_t len,
+ rxrpc_notify_end_tx_t notify_end_rx);
This is used to supply either the request part of a client call or the
reply part of a server call. msg.msg_iovlen and msg.msg_iov specify the
@@ -748,6 +837,11 @@ The kernel interface functions are as follows:
The msg must not specify a destination address, control data or any flags
other than MSG_MORE. len is the total amount of data to transmit.
+ notify_end_rx can be NULL or it can be used to specify a function to be
+ called when the call changes state to end the Tx phase. This function is
+ called with the call-state spinlock held to prevent any reply or final ACK
+ from being delivered first.
+
(*) Receive data from a call.
int rxrpc_kernel_recv_data(struct socket *sock,
@@ -870,6 +964,62 @@ The kernel interface functions are as follows:
This is used to find the remote peer address of a call.
+ (*) Set the total transmit data size on a call.
+
+ void rxrpc_kernel_set_tx_length(struct socket *sock,
+ struct rxrpc_call *call,
+ s64 tx_total_len);
+
+ This sets the amount of data that the caller is intending to transmit on a
+ call. It's intended to be used for setting the reply size as the request
+ size should be set when the call is begun. tx_total_len may not be less
+ than zero.
+
+ (*) Check to see the completion state of a call so that the caller can assess
+ whether it needs to be retried.
+
+ enum rxrpc_call_completion {
+ RXRPC_CALL_SUCCEEDED,
+ RXRPC_CALL_REMOTELY_ABORTED,
+ RXRPC_CALL_LOCALLY_ABORTED,
+ RXRPC_CALL_LOCAL_ERROR,
+ RXRPC_CALL_NETWORK_ERROR,
+ };
+
+ int rxrpc_kernel_check_call(struct socket *sock, struct rxrpc_call *call,
+ enum rxrpc_call_completion *_compl,
+ u32 *_abort_code);
+
+ On return, -EINPROGRESS will be returned if the call is still ongoing; if
+ it is finished, *_compl will be set to indicate the manner of completion,
+ *_abort_code will be set to any abort code that occurred. 0 will be
+ returned on a successful completion, -ECONNABORTED will be returned if the
+ client failed due to a remote abort and anything else will return an
+ appropriate error code.
+
+ The caller should look at this information to decide if it's worth
+ retrying the call.
+
+ (*) Retry a client call.
+
+ int rxrpc_kernel_retry_call(struct socket *sock,
+ struct rxrpc_call *call,
+ struct sockaddr_rxrpc *srx,
+ struct key *key);
+
+ This attempts to partially reinitialise a call and submit it again whilst
+ reusing the original call's Tx queue to avoid the need to repackage and
+ re-encrypt the data to be sent. call indicates the call to retry, srx the
+ new address to send it to and key the encryption key to use for signing or
+ encrypting the packets.
+
+ For this to work, the first Tx data packet must still be in the transmit
+ queue, and currently this is only permitted for local and network errors
+ and the call must not have been aborted. Any partially constructed Tx
+ packet is left as is and can continue being filled afterwards.
+
+ It returns 0 if the call was requeued and an error otherwise.
+
=======================
CONFIGURABLE PARAMETERS
diff --git a/Documentation/networking/segmentation-offloads.txt b/Documentation/networking/segmentation-offloads.txt
index f200467ade38..2f09455a993a 100644
--- a/Documentation/networking/segmentation-offloads.txt
+++ b/Documentation/networking/segmentation-offloads.txt
@@ -55,7 +55,7 @@ IPIP, SIT, GRE, UDP Tunnel, and Remote Checksum Offloads
In addition to the offloads described above it is possible for a frame to
contain additional headers such as an outer tunnel. In order to account
for such instances an additional set of segmentation offload types were
-introduced including SKB_GSO_IPIP, SKB_GSO_SIT, SKB_GSO_GRE, and
+introduced including SKB_GSO_IPXIP4, SKB_GSO_IPXIP6, SKB_GSO_GRE, and
SKB_GSO_UDP_TUNNEL. These extra segmentation types are used to identify
cases where there are more than just 1 set of headers. For example in the
case of IPIP and SIT we should have the network and transport headers moved
diff --git a/Documentation/networking/strparser.txt b/Documentation/networking/strparser.txt
index a0bf573dfa61..13081b3decef 100644
--- a/Documentation/networking/strparser.txt
+++ b/Documentation/networking/strparser.txt
@@ -1,45 +1,107 @@
-Stream Parser
--------------
+Stream Parser (strparser)
+
+Introduction
+============
The stream parser (strparser) is a utility that parses messages of an
-application layer protocol running over a TCP connection. The stream
+application layer protocol running over a data stream. The stream
parser works in conjunction with an upper layer in the kernel to provide
kernel support for application layer messages. For instance, Kernel
Connection Multiplexor (KCM) uses the Stream Parser to parse messages
using a BPF program.
+The strparser works in one of two modes: receive callback or general
+mode.
+
+In receive callback mode, the strparser is called from the data_ready
+callback of a TCP socket. Messages are parsed and delivered as they are
+received on the socket.
+
+In general mode, a sequence of skbs are fed to strparser from an
+outside source. Message are parsed and delivered as the sequence is
+processed. This modes allows strparser to be applied to arbitrary
+streams of data.
+
Interface
----------
+=========
The API includes a context structure, a set of callbacks, utility
-functions, and a data_ready function. The callbacks include
-a parse_msg function that is called to perform parsing (e.g.
-BPF parsing in case of KCM), and a rcv_msg function that is called
-when a full message has been completed.
+functions, and a data_ready function for receive callback mode. The
+callbacks include a parse_msg function that is called to perform
+parsing (e.g. BPF parsing in case of KCM), and a rcv_msg function
+that is called when a full message has been completed.
+
+Functions
+=========
+
+strp_init(struct strparser *strp, struct sock *sk,
+ const struct strp_callbacks *cb)
+
+ Called to initialize a stream parser. strp is a struct of type
+ strparser that is allocated by the upper layer. sk is the TCP
+ socket associated with the stream parser for use with receive
+ callback mode; in general mode this is set to NULL. Callbacks
+ are called by the stream parser (the callbacks are listed below).
+
+void strp_pause(struct strparser *strp)
+
+ Temporarily pause a stream parser. Message parsing is suspended
+ and no new messages are delivered to the upper layer.
+
+void strp_pause(struct strparser *strp)
+
+ Unpause a paused stream parser.
+
+void strp_stop(struct strparser *strp);
+
+ strp_stop is called to completely stop stream parser operations.
+ This is called internally when the stream parser encounters an
+ error, and it is called from the upper layer to stop parsing
+ operations.
+
+void strp_done(struct strparser *strp);
+
+ strp_done is called to release any resources held by the stream
+ parser instance. This must be called after the stream processor
+ has been stopped.
-A stream parser can be instantiated for a TCP connection. This is done
-by:
+int strp_process(struct strparser *strp, struct sk_buff *orig_skb,
+ unsigned int orig_offset, size_t orig_len,
+ size_t max_msg_size, long timeo)
-strp_init(struct strparser *strp, struct sock *csk,
- struct strp_callbacks *cb)
+ strp_process is called in general mode for a stream parser to
+ parse an sk_buff. The number of bytes processed or a negative
+ error number is returned. Note that strp_process does not
+ consume the sk_buff. max_msg_size is maximum size the stream
+ parser will parse. timeo is timeout for completing a message.
-strp is a struct of type strparser that is allocated by the upper layer.
-csk is the TCP socket associated with the stream parser. Callbacks are
-called by the stream parser.
+void strp_data_ready(struct strparser *strp);
+
+ The upper layer calls strp_tcp_data_ready when data is ready on
+ the lower socket for strparser to process. This should be called
+ from a data_ready callback that is set on the socket. Note that
+ maximum messages size is the limit of the receive socket
+ buffer and message timeout is the receive timeout for the socket.
+
+void strp_check_rcv(struct strparser *strp);
+
+ strp_check_rcv is called to check for new messages on the socket.
+ This is normally called at initialization of a stream parser
+ instance or after strp_unpause.
Callbacks
----------
+=========
-There are four callbacks:
+There are six callbacks:
int (*parse_msg)(struct strparser *strp, struct sk_buff *skb);
parse_msg is called to determine the length of the next message
in the stream. The upper layer must implement this function. It
should parse the sk_buff as containing the headers for the
- next application layer messages in the stream.
+ next application layer message in the stream.
- The skb->cb in the input skb is a struct strp_rx_msg. Only
+ The skb->cb in the input skb is a struct strp_msg. Only
the offset field is relevant in parse_msg and gives the offset
where the message starts in the skb.
@@ -50,26 +112,41 @@ int (*parse_msg)(struct strparser *strp, struct sk_buff *skb);
-ESTRPIPE : current message should not be processed by the
kernel, return control of the socket to userspace which
can proceed to read the messages itself
- other < 0 : Error is parsing, give control back to userspace
+ other < 0 : Error in parsing, give control back to userspace
assuming that synchronization is lost and the stream
is unrecoverable (application expected to close TCP socket)
In the case that an error is returned (return value is less than
- zero) the stream parser will set the error on TCP socket and wake
- it up. If parse_msg returned -ESTRPIPE and the stream parser had
- previously read some bytes for the current message, then the error
- set on the attached socket is ENODATA since the stream is
- unrecoverable in that case.
+ zero) and the parser is in receive callback mode, then it will set
+ the error on TCP socket and wake it up. If parse_msg returned
+ -ESTRPIPE and the stream parser had previously read some bytes for
+ the current message, then the error set on the attached socket is
+ ENODATA since the stream is unrecoverable in that case.
+
+void (*lock)(struct strparser *strp)
+
+ The lock callback is called to lock the strp structure when
+ the strparser is performing an asynchronous operation (such as
+ processing a timeout). In receive callback mode the default
+ function is to lock_sock for the associated socket. In general
+ mode the callback must be set appropriately.
+
+void (*unlock)(struct strparser *strp)
+
+ The unlock callback is called to release the lock obtained
+ by the lock callback. In receive callback mode the default
+ function is release_sock for the associated socket. In general
+ mode the callback must be set appropriately.
void (*rcv_msg)(struct strparser *strp, struct sk_buff *skb);
rcv_msg is called when a full message has been received and
is queued. The callee must consume the sk_buff; it can
call strp_pause to prevent any further messages from being
- received in rcv_msg (see strp_pause below). This callback
+ received in rcv_msg (see strp_pause above). This callback
must be set.
- The skb->cb in the input skb is a struct strp_rx_msg. This
+ The skb->cb in the input skb is a struct strp_msg. This
struct contains two fields: offset and full_len. Offset is
where the message starts in the skb, and full_len is the
the length of the message. skb->len - offset may be greater
@@ -78,59 +155,53 @@ void (*rcv_msg)(struct strparser *strp, struct sk_buff *skb);
int (*read_sock_done)(struct strparser *strp, int err);
read_sock_done is called when the stream parser is done reading
- the TCP socket. The stream parser may read multiple messages
- in a loop and this function allows cleanup to occur when existing
- the loop. If the callback is not set (NULL in strp_init) a
- default function is used.
+ the TCP socket in receive callback mode. The stream parser may
+ read multiple messages in a loop and this function allows cleanup
+ to occur when exiting the loop. If the callback is not set (NULL
+ in strp_init) a default function is used.
void (*abort_parser)(struct strparser *strp, int err);
This function is called when stream parser encounters an error
- in parsing. The default function stops the stream parser for the
- TCP socket and sets the error in the socket. The default function
- can be changed by setting the callback to non-NULL in strp_init.
+ in parsing. The default function stops the stream parser and
+ sets the error in the socket if the parser is in receive callback
+ mode. The default function can be changed by setting the callback
+ to non-NULL in strp_init.
-Functions
----------
+Statistics
+==========
-The upper layer calls strp_tcp_data_ready when data is ready on the lower
-socket for strparser to process. This should be called from a data_ready
-callback that is set on the socket.
+Various counters are kept for each stream parser instance. These are in
+the strp_stats structure. strp_aggr_stats is a convenience structure for
+accumulating statistics for multiple stream parser instances.
+save_strp_stats and aggregate_strp_stats are helper functions to save
+and aggregate statistics.
-strp_stop is called to completely stop stream parser operations. This
-is called internally when the stream parser encounters an error, and
-it is called from the upper layer when unattaching a TCP socket.
+Message assembly limits
+=======================
-strp_done is called to unattach the stream parser from the TCP socket.
-This must be called after the stream processor has be stopped.
+The stream parser provide mechanisms to limit the resources consumed by
+message assembly.
-strp_check_rcv is called to check for new messages on the socket. This
-is normally called at initialization of the a stream parser instance
-of after strp_unpause.
+A timer is set when assembly starts for a new message. In receive
+callback mode the message timeout is taken from rcvtime for the
+associated TCP socket. In general mode, the timeout is passed as an
+argument in strp_process. If the timer fires before assembly completes
+the stream parser is aborted and the ETIMEDOUT error is set on the TCP
+socket if in receive callback mode.
-Statistics
-----------
+In receive callback mode, message length is limited to the receive
+buffer size of the associated TCP socket. If the length returned by
+parse_msg is greater than the socket buffer size then the stream parser
+is aborted with EMSGSIZE error set on the TCP socket. Note that this
+makes the maximum size of receive skbuffs for a socket with a stream
+parser to be 2*sk_rcvbuf of the TCP socket.
-Various counters are kept for each stream parser for a TCP socket.
-These are in the strp_stats structure. strp_aggr_stats is a convenience
-structure for accumulating statistics for multiple stream parser
-instances. save_strp_stats and aggregate_strp_stats are helper functions
-to save and aggregate statistics.
+In general mode the message length limit is passed in as an argument
+to strp_process.
-Message assembly limits
------------------------
+Author
+======
-The stream parser provide mechanisms to limit the resources consumed by
-message assembly.
+Tom Herbert (tom@quantonium.net)
-A timer is set when assembly starts for a new message. The message
-timeout is taken from rcvtime for the associated TCP socket. If the
-timer fires before assembly completes the stream parser is aborted
-and the ETIMEDOUT error is set on the TCP socket.
-
-Message length is limited to the receive buffer size of the associated
-TCP socket. If the length returned by parse_msg is greater than
-the socket buffer size then the stream parser is aborted with
-EMSGSIZE error set on the TCP socket. Note that this makes the
-maximum size of receive skbuffs for a socket with a stream parser
-to be 2*sk_rcvbuf of the TCP socket.
diff --git a/Documentation/networking/switchdev.txt b/Documentation/networking/switchdev.txt
index 3e7b946dea27..82236a17b5e6 100644
--- a/Documentation/networking/switchdev.txt
+++ b/Documentation/networking/switchdev.txt
@@ -13,42 +13,42 @@ an example setup using a data-center-class switch ASIC chip. Other setups
with SR-IOV or soft switches, such as OVS, are possible.
-                             User-space tools
-
-       user space                   |
-      +-------------------------------------------------------------------+
-       kernel                       | Netlink
-                                    |
-                     +--------------+-------------------------------+
-                     |         Network stack                        |
-                     |           (Linux)                            |
-                     |                                              |
-                     +----------------------------------------------+
+ User-space tools
+
+ user space |
+ +-------------------------------------------------------------------+
+ kernel | Netlink
+ |
+ +--------------+-------------------------------+
+ | Network stack |
+ | (Linux) |
+ | |
+ +----------------------------------------------+
sw1p2 sw1p4 sw1p6
-                      sw1p1  + sw1p3 +  sw1p5 +         eth1
-                        +    |    +    |    +    |            +
-                        |    |    |    |    |    |            |
-                     +--+----+----+----+-+--+----+---+  +-----+-----+
-                     |         Switch driver         |  |    mgmt   |
-                     |        (this document)        |  |   driver  |
-                     |                               |  |           |
-                     +--------------+----------------+  +-----------+
-                                    |
-       kernel                       | HW bus (eg PCI)
-      +-------------------------------------------------------------------+
-       hardware                     |
-                     +--------------+---+------------+
-                     |         Switch device (sw1)   |
-                     |  +----+                       +--------+
-                     |  |    v offloaded data path   | mgmt port
-                     |  |    |                       |
-                     +--|----|----+----+----+----+---+
-                        |    |    |    |    |    |
-                        +    +    +    +    +    +
-                       p1   p2   p3   p4   p5   p6
-
-                             front-panel ports
+ sw1p1 + sw1p3 + sw1p5 + eth1
+ + | + | + | +
+ | | | | | | |
+ +--+----+----+----+----+----+---+ +-----+-----+
+ | Switch driver | | mgmt |
+ | (this document) | | driver |
+ | | | |
+ +--------------+----------------+ +-----------+
+ |
+ kernel | HW bus (eg PCI)
+ +-------------------------------------------------------------------+
+ hardware |
+ +--------------+----------------+
+ | Switch device (sw1) |
+ | +----+ +--------+
+ | | v offloaded data path | mgmt port
+ | | | |
+ +--|----|----+----+----+----+---+
+ | | | | | |
+ + + + + + +
+ p1 p2 p3 p4 p5 p6
+
+ front-panel ports
Fig 1.
@@ -228,7 +228,7 @@ Learning on the device port should be enabled, as well as learning_sync:
bridge link set dev DEV learning on self
bridge link set dev DEV learning_sync on self
-Learning_sync attribute enables syncing of the learned/forgotton FDB entry to
+Learning_sync attribute enables syncing of the learned/forgotten FDB entry to
the bridge's FDB. It's possible, but not optimal, to enable learning on the
device port and on the bridge port, and disable learning_sync.
@@ -245,7 +245,7 @@ the responsibility of the port driver/device to age out these entries. If the
port device supports ageing, when the FDB entry expires, it will notify the
driver which in turn will notify the bridge with SWITCHDEV_FDB_DEL. If the
device does not support ageing, the driver can simulate ageing using a
-garbage collection timer to monitor FBD entries. Expired entries will be
+garbage collection timer to monitor FDB entries. Expired entries will be
notified to the bridge using SWITCHDEV_FDB_DEL. See rocker driver for
example of driver running ageing timer.
diff --git a/Documentation/networking/timestamping.txt b/Documentation/networking/timestamping.txt
index 96f50694a748..1be0b6f9e0cb 100644
--- a/Documentation/networking/timestamping.txt
+++ b/Documentation/networking/timestamping.txt
@@ -44,8 +44,7 @@ timeval of SO_TIMESTAMP (ms).
Supports multiple types of timestamp requests. As a result, this
socket option takes a bitmap of flags, not a boolean. In
- err = setsockopt(fd, SOL_SOCKET, SO_TIMESTAMPING, (void *) val,
- sizeof(val));
+ err = setsockopt(fd, SOL_SOCKET, SO_TIMESTAMPING, &val, sizeof(val));
val is an integer with any of the following bits set. Setting other
bit returns EINVAL and does not change the current state.
@@ -193,6 +192,24 @@ SOF_TIMESTAMPING_OPT_STATS:
the transmit timestamps, such as how long a certain block of
data was limited by peer's receiver window.
+SOF_TIMESTAMPING_OPT_PKTINFO:
+
+ Enable the SCM_TIMESTAMPING_PKTINFO control message for incoming
+ packets with hardware timestamps. The message contains struct
+ scm_ts_pktinfo, which supplies the index of the real interface which
+ received the packet and its length at layer 2. A valid (non-zero)
+ interface index will be returned only if CONFIG_NET_RX_BUSY_POLL is
+ enabled and the driver is using NAPI. The struct contains also two
+ other fields, but they are reserved and undefined.
+
+SOF_TIMESTAMPING_OPT_TX_SWHW:
+
+ Request both hardware and software timestamps for outgoing packets
+ when SOF_TIMESTAMPING_TX_HARDWARE and SOF_TIMESTAMPING_TX_SOFTWARE
+ are enabled at the same time. If both timestamps are generated,
+ two separate messages will be looped to the socket's error queue,
+ each containing just one timestamp.
+
New applications are encouraged to pass SOF_TIMESTAMPING_OPT_ID to
disambiguate timestamps and SOF_TIMESTAMPING_OPT_TSONLY to operate
regardless of the setting of sysctl net.core.tstamp_allow_data.
@@ -231,8 +248,7 @@ setsockopt to receive timestamps:
__u32 val = SOF_TIMESTAMPING_SOFTWARE |
SOF_TIMESTAMPING_OPT_ID /* or any other flag */;
- err = setsockopt(fd, SOL_SOCKET, SO_TIMESTAMPING, (void *) val,
- sizeof(val));
+ err = setsockopt(fd, SOL_SOCKET, SO_TIMESTAMPING, &val, sizeof(val));
1.4 Bytestream Timestamps
@@ -312,7 +328,7 @@ struct scm_timestamping {
};
The structure can return up to three timestamps. This is a legacy
-feature. Only one field is non-zero at any time. Most timestamps
+feature. At least one field is non-zero at any time. Most timestamps
are passed in ts[0]. Hardware timestamps are passed in ts[2].
ts[1] used to hold hardware timestamps converted to system time.
@@ -321,6 +337,12 @@ a HW PTP clock source, to allow time conversion in userspace and
optionally synchronize system time with a userspace PTP stack such
as linuxptp. For the PTP clock API, see Documentation/ptp/ptp.txt.
+Note that if the SO_TIMESTAMP or SO_TIMESTAMPNS option is enabled
+together with SO_TIMESTAMPING using SOF_TIMESTAMPING_SOFTWARE, a false
+software timestamp will be generated in the recvmsg() call and passed
+in ts[0] when a real software timestamp is missing. This happens also
+on hardware transmit timestamps.
+
2.1.1 Transmit timestamps with MSG_ERRQUEUE
For transmit timestamps the outgoing packet is looped back to the
diff --git a/Documentation/networking/tls.txt b/Documentation/networking/tls.txt
new file mode 100644
index 000000000000..77ed00631c12
--- /dev/null
+++ b/Documentation/networking/tls.txt
@@ -0,0 +1,135 @@
+Overview
+========
+
+Transport Layer Security (TLS) is a Upper Layer Protocol (ULP) that runs over
+TCP. TLS provides end-to-end data integrity and confidentiality.
+
+User interface
+==============
+
+Creating a TLS connection
+-------------------------
+
+First create a new TCP socket and set the TLS ULP.
+
+ sock = socket(AF_INET, SOCK_STREAM, 0);
+ setsockopt(sock, SOL_TCP, TCP_ULP, "tls", sizeof("tls"));
+
+Setting the TLS ULP allows us to set/get TLS socket options. Currently
+only the symmetric encryption is handled in the kernel. After the TLS
+handshake is complete, we have all the parameters required to move the
+data-path to the kernel. There is a separate socket option for moving
+the transmit and the receive into the kernel.
+
+ /* From linux/tls.h */
+ struct tls_crypto_info {
+ unsigned short version;
+ unsigned short cipher_type;
+ };
+
+ struct tls12_crypto_info_aes_gcm_128 {
+ struct tls_crypto_info info;
+ unsigned char iv[TLS_CIPHER_AES_GCM_128_IV_SIZE];
+ unsigned char key[TLS_CIPHER_AES_GCM_128_KEY_SIZE];
+ unsigned char salt[TLS_CIPHER_AES_GCM_128_SALT_SIZE];
+ unsigned char rec_seq[TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE];
+ };
+
+
+ struct tls12_crypto_info_aes_gcm_128 crypto_info;
+
+ crypto_info.info.version = TLS_1_2_VERSION;
+ crypto_info.info.cipher_type = TLS_CIPHER_AES_GCM_128;
+ memcpy(crypto_info.iv, iv_write, TLS_CIPHER_AES_GCM_128_IV_SIZE);
+ memcpy(crypto_info.rec_seq, seq_number_write,
+ TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE);
+ memcpy(crypto_info.key, cipher_key_write, TLS_CIPHER_AES_GCM_128_KEY_SIZE);
+ memcpy(crypto_info.salt, implicit_iv_write, TLS_CIPHER_AES_GCM_128_SALT_SIZE);
+
+ setsockopt(sock, SOL_TLS, TLS_TX, &crypto_info, sizeof(crypto_info));
+
+Sending TLS application data
+----------------------------
+
+After setting the TLS_TX socket option all application data sent over this
+socket is encrypted using TLS and the parameters provided in the socket option.
+For example, we can send an encrypted hello world record as follows:
+
+ const char *msg = "hello world\n";
+ send(sock, msg, strlen(msg));
+
+send() data is directly encrypted from the userspace buffer provided
+to the encrypted kernel send buffer if possible.
+
+The sendfile system call will send the file's data over TLS records of maximum
+length (2^14).
+
+ file = open(filename, O_RDONLY);
+ fstat(file, &stat);
+ sendfile(sock, file, &offset, stat.st_size);
+
+TLS records are created and sent after each send() call, unless
+MSG_MORE is passed. MSG_MORE will delay creation of a record until
+MSG_MORE is not passed, or the maximum record size is reached.
+
+The kernel will need to allocate a buffer for the encrypted data.
+This buffer is allocated at the time send() is called, such that
+either the entire send() call will return -ENOMEM (or block waiting
+for memory), or the encryption will always succeed. If send() returns
+-ENOMEM and some data was left on the socket buffer from a previous
+call using MSG_MORE, the MSG_MORE data is left on the socket buffer.
+
+Send TLS control messages
+-------------------------
+
+Other than application data, TLS has control messages such as alert
+messages (record type 21) and handshake messages (record type 22), etc.
+These messages can be sent over the socket by providing the TLS record type
+via a CMSG. For example the following function sends @data of @length bytes
+using a record of type @record_type.
+
+/* send TLS control message using record_type */
+ static int klts_send_ctrl_message(int sock, unsigned char record_type,
+ void *data, size_t length)
+ {
+ struct msghdr msg = {0};
+ int cmsg_len = sizeof(record_type);
+ struct cmsghdr *cmsg;
+ char buf[CMSG_SPACE(cmsg_len)];
+ struct iovec msg_iov; /* Vector of data to send/receive into. */
+
+ msg.msg_control = buf;
+ msg.msg_controllen = sizeof(buf);
+ cmsg = CMSG_FIRSTHDR(&msg);
+ cmsg->cmsg_level = SOL_TLS;
+ cmsg->cmsg_type = TLS_SET_RECORD_TYPE;
+ cmsg->cmsg_len = CMSG_LEN(cmsg_len);
+ *CMSG_DATA(cmsg) = record_type;
+ msg.msg_controllen = cmsg->cmsg_len;
+
+ msg_iov.iov_base = data;
+ msg_iov.iov_len = length;
+ msg.msg_iov = &msg_iov;
+ msg.msg_iovlen = 1;
+
+ return sendmsg(sock, &msg, 0);
+ }
+
+Control message data should be provided unencrypted, and will be
+encrypted by the kernel.
+
+Integrating in to userspace TLS library
+---------------------------------------
+
+At a high level, the kernel TLS ULP is a replacement for the record
+layer of a userspace TLS library.
+
+A patchset to OpenSSL to use ktls as the record layer is here:
+
+https://github.com/Mellanox/tls-openssl
+
+An example of calling send directly after a handshake using
+gnutls. Since it doesn't implement a full record layer, control
+messages are not supported:
+
+https://github.com/Mellanox/tls-af_ktls_tool
diff --git a/Documentation/networking/z8530book.rst b/Documentation/networking/z8530book.rst
new file mode 100644
index 000000000000..fea2c40e7973
--- /dev/null
+++ b/Documentation/networking/z8530book.rst
@@ -0,0 +1,256 @@
+=======================
+Z8530 Programming Guide
+=======================
+
+:Author: Alan Cox
+
+Introduction
+============
+
+The Z85x30 family synchronous/asynchronous controller chips are used on
+a large number of cheap network interface cards. The kernel provides a
+core interface layer that is designed to make it easy to provide WAN
+services using this chip.
+
+The current driver only support synchronous operation. Merging the
+asynchronous driver support into this code to allow any Z85x30 device to
+be used as both a tty interface and as a synchronous controller is a
+project for Linux post the 2.4 release
+
+Driver Modes
+============
+
+The Z85230 driver layer can drive Z8530, Z85C30 and Z85230 devices in
+three different modes. Each mode can be applied to an individual channel
+on the chip (each chip has two channels).
+
+The PIO synchronous mode supports the most common Z8530 wiring. Here the
+chip is interface to the I/O and interrupt facilities of the host
+machine but not to the DMA subsystem. When running PIO the Z8530 has
+extremely tight timing requirements. Doing high speeds, even with a
+Z85230 will be tricky. Typically you should expect to achieve at best
+9600 baud with a Z8C530 and 64Kbits with a Z85230.
+
+The DMA mode supports the chip when it is configured to use dual DMA
+channels on an ISA bus. The better cards tend to support this mode of
+operation for a single channel. With DMA running the Z85230 tops out
+when it starts to hit ISA DMA constraints at about 512Kbits. It is worth
+noting here that many PC machines hang or crash when the chip is driven
+fast enough to hold the ISA bus solid.
+
+Transmit DMA mode uses a single DMA channel. The DMA channel is used for
+transmission as the transmit FIFO is smaller than the receive FIFO. it
+gives better performance than pure PIO mode but is nowhere near as ideal
+as pure DMA mode.
+
+Using the Z85230 driver
+=======================
+
+The Z85230 driver provides the back end interface to your board. To
+configure a Z8530 interface you need to detect the board and to identify
+its ports and interrupt resources. It is also your problem to verify the
+resources are available.
+
+Having identified the chip you need to fill in a struct z8530_dev,
+which describes each chip. This object must exist until you finally
+shutdown the board. Firstly zero the active field. This ensures nothing
+goes off without you intending it. The irq field should be set to the
+interrupt number of the chip. (Each chip has a single interrupt source
+rather than each channel). You are responsible for allocating the
+interrupt line. The interrupt handler should be set to
+:c:func:`z8530_interrupt()`. The device id should be set to the
+z8530_dev structure pointer. Whether the interrupt can be shared or not
+is board dependent, and up to you to initialise.
+
+The structure holds two channel structures. Initialise chanA.ctrlio and
+chanA.dataio with the address of the control and data ports. You can or
+this with Z8530_PORT_SLEEP to indicate your interface needs the 5uS
+delay for chip settling done in software. The PORT_SLEEP option is
+architecture specific. Other flags may become available on future
+platforms, eg for MMIO. Initialise the chanA.irqs to &z8530_nop to
+start the chip up as disabled and discarding interrupt events. This
+ensures that stray interrupts will be mopped up and not hang the bus.
+Set chanA.dev to point to the device structure itself. The private and
+name field you may use as you wish. The private field is unused by the
+Z85230 layer. The name is used for error reporting and it may thus make
+sense to make it match the network name.
+
+Repeat the same operation with the B channel if your chip has both
+channels wired to something useful. This isn't always the case. If it is
+not wired then the I/O values do not matter, but you must initialise
+chanB.dev.
+
+If your board has DMA facilities then initialise the txdma and rxdma
+fields for the relevant channels. You must also allocate the ISA DMA
+channels and do any necessary board level initialisation to configure
+them. The low level driver will do the Z8530 and DMA controller
+programming but not board specific magic.
+
+Having initialised the device you can then call
+:c:func:`z8530_init()`. This will probe the chip and reset it into
+a known state. An identification sequence is then run to identify the
+chip type. If the checks fail to pass the function returns a non zero
+error code. Typically this indicates that the port given is not valid.
+After this call the type field of the z8530_dev structure is
+initialised to either Z8530, Z85C30 or Z85230 according to the chip
+found.
+
+Once you have called z8530_init you can also make use of the utility
+function :c:func:`z8530_describe()`. This provides a consistent
+reporting format for the Z8530 devices, and allows all the drivers to
+provide consistent reporting.
+
+Attaching Network Interfaces
+============================
+
+If you wish to use the network interface facilities of the driver, then
+you need to attach a network device to each channel that is present and
+in use. In addition to use the generic HDLC you need to follow some
+additional plumbing rules. They may seem complex but a look at the
+example hostess_sv11 driver should reassure you.
+
+The network device used for each channel should be pointed to by the
+netdevice field of each channel. The hdlc-> priv field of the network
+device points to your private data - you will need to be able to find
+your private data from this.
+
+The way most drivers approach this particular problem is to create a
+structure holding the Z8530 device definition and put that into the
+private field of the network device. The network device fields of the
+channels then point back to the network devices.
+
+If you wish to use the generic HDLC then you need to register the HDLC
+device.
+
+Before you register your network device you will also need to provide
+suitable handlers for most of the network device callbacks. See the
+network device documentation for more details on this.
+
+Configuring And Activating The Port
+===================================
+
+The Z85230 driver provides helper functions and tables to load the port
+registers on the Z8530 chips. When programming the register settings for
+a channel be aware that the documentation recommends initialisation
+orders. Strange things happen when these are not followed.
+
+:c:func:`z8530_channel_load()` takes an array of pairs of
+initialisation values in an array of u8 type. The first value is the
+Z8530 register number. Add 16 to indicate the alternate register bank on
+the later chips. The array is terminated by a 255.
+
+The driver provides a pair of public tables. The z8530_hdlc_kilostream
+table is for the UK 'Kilostream' service and also happens to cover most
+other end host configurations. The z8530_hdlc_kilostream_85230 table
+is the same configuration using the enhancements of the 85230 chip. The
+configuration loaded is standard NRZ encoded synchronous data with HDLC
+bitstuffing. All of the timing is taken from the other end of the link.
+
+When writing your own tables be aware that the driver internally tracks
+register values. It may need to reload values. You should therefore be
+sure to set registers 1-7, 9-11, 14 and 15 in all configurations. Where
+the register settings depend on DMA selection the driver will update the
+bits itself when you open or close. Loading a new table with the
+interface open is not recommended.
+
+There are three standard configurations supported by the core code. In
+PIO mode the interface is programmed up to use interrupt driven PIO.
+This places high demands on the host processor to avoid latency. The
+driver is written to take account of latency issues but it cannot avoid
+latencies caused by other drivers, notably IDE in PIO mode. Because the
+drivers allocate buffers you must also prevent MTU changes while the
+port is open.
+
+Once the port is open it will call the rx_function of each channel
+whenever a completed packet arrived. This is invoked from interrupt
+context and passes you the channel and a network buffer (struct
+sk_buff) holding the data. The data includes the CRC bytes so most
+users will want to trim the last two bytes before processing the data.
+This function is very timing critical. When you wish to simply discard
+data the support code provides the function
+:c:func:`z8530_null_rx()` to discard the data.
+
+To active PIO mode sending and receiving the ``z8530_sync_open`` is called.
+This expects to be passed the network device and the channel. Typically
+this is called from your network device open callback. On a failure a
+non zero error status is returned.
+The :c:func:`z8530_sync_close()` function shuts down a PIO
+channel. This must be done before the channel is opened again and before
+the driver shuts down and unloads.
+
+The ideal mode of operation is dual channel DMA mode. Here the kernel
+driver will configure the board for DMA in both directions. The driver
+also handles ISA DMA issues such as controller programming and the
+memory range limit for you. This mode is activated by calling the
+:c:func:`z8530_sync_dma_open()` function. On failure a non zero
+error value is returned. Once this mode is activated it can be shut down
+by calling the :c:func:`z8530_sync_dma_close()`. You must call
+the close function matching the open mode you used.
+
+The final supported mode uses a single DMA channel to drive the transmit
+side. As the Z85C30 has a larger FIFO on the receive channel this tends
+to increase the maximum speed a little. This is activated by calling the
+``z8530_sync_txdma_open``. This returns a non zero error code on failure. The
+:c:func:`z8530_sync_txdma_close()` function closes down the Z8530
+interface from this mode.
+
+Network Layer Functions
+=======================
+
+The Z8530 layer provides functions to queue packets for transmission.
+The driver internally buffers the frame currently being transmitted and
+one further frame (in order to keep back to back transmission running).
+Any further buffering is up to the caller.
+
+The function :c:func:`z8530_queue_xmit()` takes a network buffer
+in sk_buff format and queues it for transmission. The caller must
+provide the entire packet with the exception of the bitstuffing and CRC.
+This is normally done by the caller via the generic HDLC interface
+layer. It returns 0 if the buffer has been queued and non zero values
+for queue full. If the function accepts the buffer it becomes property
+of the Z8530 layer and the caller should not free it.
+
+The function :c:func:`z8530_get_stats()` returns a pointer to an
+internally maintained per interface statistics block. This provides most
+of the interface code needed to implement the network layer get_stats
+callback.
+
+Porting The Z8530 Driver
+========================
+
+The Z8530 driver is written to be portable. In DMA mode it makes
+assumptions about the use of ISA DMA. These are probably warranted in
+most cases as the Z85230 in particular was designed to glue to PC type
+machines. The PIO mode makes no real assumptions.
+
+Should you need to retarget the Z8530 driver to another architecture the
+only code that should need changing are the port I/O functions. At the
+moment these assume PC I/O port accesses. This may not be appropriate
+for all platforms. Replacing :c:func:`z8530_read_port()` and
+``z8530_write_port`` is intended to be all that is required to port
+this driver layer.
+
+Known Bugs And Assumptions
+==========================
+
+Interrupt Locking
+ The locking in the driver is done via the global cli/sti lock. This
+ makes for relatively poor SMP performance. Switching this to use a
+ per device spin lock would probably materially improve performance.
+
+Occasional Failures
+ We have reports of occasional failures when run for very long
+ periods of time and the driver starts to receive junk frames. At the
+ moment the cause of this is not clear.
+
+Public Functions Provided
+=========================
+
+.. kernel-doc:: drivers/net/wan/z85230.c
+ :export:
+
+Internal Functions
+==================
+
+.. kernel-doc:: drivers/net/wan/z85230.c
+ :internal:
diff --git a/Documentation/nommu-mmap.txt b/Documentation/nommu-mmap.txt
index ae57b9ea0d41..69556f0d494b 100644
--- a/Documentation/nommu-mmap.txt
+++ b/Documentation/nommu-mmap.txt
@@ -1,6 +1,6 @@
- =============================
- NO-MMU MEMORY MAPPING SUPPORT
- =============================
+=============================
+No-MMU memory mapping support
+=============================
The kernel has limited support for memory mapping under no-MMU conditions, such
as are used in uClinux environments. From the userspace point of view, memory
@@ -16,7 +16,7 @@ the CLONE_VM flag.
The behaviour is similar between the MMU and no-MMU cases, but not identical;
and it's also much more restricted in the latter case:
- (*) Anonymous mapping, MAP_PRIVATE
+ (#) Anonymous mapping, MAP_PRIVATE
In the MMU case: VM regions backed by arbitrary pages; copy-on-write
across fork.
@@ -24,14 +24,14 @@ and it's also much more restricted in the latter case:
In the no-MMU case: VM regions backed by arbitrary contiguous runs of
pages.
- (*) Anonymous mapping, MAP_SHARED
+ (#) Anonymous mapping, MAP_SHARED
These behave very much like private mappings, except that they're
shared across fork() or clone() without CLONE_VM in the MMU case. Since
the no-MMU case doesn't support these, behaviour is identical to
MAP_PRIVATE there.
- (*) File, MAP_PRIVATE, PROT_READ / PROT_EXEC, !PROT_WRITE
+ (#) File, MAP_PRIVATE, PROT_READ / PROT_EXEC, !PROT_WRITE
In the MMU case: VM regions backed by pages read from file; changes to
the underlying file are reflected in the mapping; copied across fork.
@@ -56,7 +56,7 @@ and it's also much more restricted in the latter case:
are visible in other processes (no MMU protection), but should not
happen.
- (*) File, MAP_PRIVATE, PROT_READ / PROT_EXEC, PROT_WRITE
+ (#) File, MAP_PRIVATE, PROT_READ / PROT_EXEC, PROT_WRITE
In the MMU case: like the non-PROT_WRITE case, except that the pages in
question get copied before the write actually happens. From that point
@@ -66,7 +66,7 @@ and it's also much more restricted in the latter case:
In the no-MMU case: works much like the non-PROT_WRITE case, except
that a copy is always taken and never shared.
- (*) Regular file / blockdev, MAP_SHARED, PROT_READ / PROT_EXEC / PROT_WRITE
+ (#) Regular file / blockdev, MAP_SHARED, PROT_READ / PROT_EXEC / PROT_WRITE
In the MMU case: VM regions backed by pages read from file; changes to
pages written back to file; writes to file reflected into pages backing
@@ -74,7 +74,7 @@ and it's also much more restricted in the latter case:
In the no-MMU case: not supported.
- (*) Memory backed regular file, MAP_SHARED, PROT_READ / PROT_EXEC / PROT_WRITE
+ (#) Memory backed regular file, MAP_SHARED, PROT_READ / PROT_EXEC / PROT_WRITE
In the MMU case: As for ordinary regular files.
@@ -85,7 +85,7 @@ and it's also much more restricted in the latter case:
as for the MMU case. If the filesystem does not provide any such
support, then the mapping request will be denied.
- (*) Memory backed blockdev, MAP_SHARED, PROT_READ / PROT_EXEC / PROT_WRITE
+ (#) Memory backed blockdev, MAP_SHARED, PROT_READ / PROT_EXEC / PROT_WRITE
In the MMU case: As for ordinary regular files.
@@ -94,7 +94,7 @@ and it's also much more restricted in the latter case:
truncate being called. The ramdisk driver could do this if it allocated
all its memory as a contiguous array upfront.
- (*) Memory backed chardev, MAP_SHARED, PROT_READ / PROT_EXEC / PROT_WRITE
+ (#) Memory backed chardev, MAP_SHARED, PROT_READ / PROT_EXEC / PROT_WRITE
In the MMU case: As for ordinary regular files.
@@ -105,21 +105,20 @@ and it's also much more restricted in the latter case:
provide any such support, then the mapping request will be denied.
-============================
-FURTHER NOTES ON NO-MMU MMAP
+Further notes on no-MMU MMAP
============================
- (*) A request for a private mapping of a file may return a buffer that is not
+ (#) A request for a private mapping of a file may return a buffer that is not
page-aligned. This is because XIP may take place, and the data may not be
paged aligned in the backing store.
- (*) A request for an anonymous mapping will always be page aligned. If
+ (#) A request for an anonymous mapping will always be page aligned. If
possible the size of the request should be a power of two otherwise some
of the space may be wasted as the kernel must allocate a power-of-2
granule but will only discard the excess if appropriately configured as
this has an effect on fragmentation.
- (*) The memory allocated by a request for an anonymous mapping will normally
+ (#) The memory allocated by a request for an anonymous mapping will normally
be cleared by the kernel before being returned in accordance with the
Linux man pages (ver 2.22 or later).
@@ -145,24 +144,23 @@ FURTHER NOTES ON NO-MMU MMAP
uClibc uses this to speed up malloc(), and the ELF-FDPIC binfmt uses this
to allocate the brk and stack region.
- (*) A list of all the private copy and anonymous mappings on the system is
+ (#) A list of all the private copy and anonymous mappings on the system is
visible through /proc/maps in no-MMU mode.
- (*) A list of all the mappings in use by a process is visible through
+ (#) A list of all the mappings in use by a process is visible through
/proc/<pid>/maps in no-MMU mode.
- (*) Supplying MAP_FIXED or a requesting a particular mapping address will
+ (#) Supplying MAP_FIXED or a requesting a particular mapping address will
result in an error.
- (*) Files mapped privately usually have to have a read method provided by the
+ (#) Files mapped privately usually have to have a read method provided by the
driver or filesystem so that the contents can be read into the memory
allocated if mmap() chooses not to map the backing device directly. An
error will result if they don't. This is most likely to be encountered
with character device files, pipes, fifos and sockets.
-==========================
-INTERPROCESS SHARED MEMORY
+Interprocess shared memory
==========================
Both SYSV IPC SHM shared memory and POSIX shared memory is supported in NOMMU
@@ -170,8 +168,7 @@ mode. The former through the usual mechanism, the latter through files created
on ramfs or tmpfs mounts.
-=======
-FUTEXES
+Futexes
=======
Futexes are supported in NOMMU mode if the arch supports them. An error will
@@ -180,12 +177,11 @@ mappings made by a process or if the mapping in which the address lies does not
support futexes (such as an I/O chardev mapping).
-=============
-NO-MMU MREMAP
+No-MMU mremap
=============
The mremap() function is partially supported. It may change the size of a
-mapping, and may move it[*] if MREMAP_MAYMOVE is specified and if the new size
+mapping, and may move it [#]_ if MREMAP_MAYMOVE is specified and if the new size
of the mapping exceeds the size of the slab object currently occupied by the
memory to which the mapping refers, or if a smaller slab object could be used.
@@ -200,11 +196,10 @@ a previously mapped object. It may not be used to create holes in existing
mappings, move parts of existing mappings or resize parts of mappings. It must
act on a complete mapping.
-[*] Not currently supported.
+.. [#] Not currently supported.
-============================================
-PROVIDING SHAREABLE CHARACTER DEVICE SUPPORT
+Providing shareable character device support
============================================
To provide shareable character device support, a driver must provide a
@@ -235,7 +230,7 @@ direct the call to the device-specific driver. Under such circumstances, the
mapping request will be rejected if NOMMU_MAP_COPY is not specified, and a
copy mapped otherwise.
-IMPORTANT NOTE:
+.. important::
Some types of device may present a different appearance to anyone
looking at them in certain modes. Flash chips can be like this; for
@@ -249,8 +244,7 @@ IMPORTANT NOTE:
circumstances!
-==============================================
-PROVIDING SHAREABLE MEMORY-BACKED FILE SUPPORT
+Providing shareable memory-backed file support
==============================================
Provision of shared mappings on memory backed files is similar to the provision
@@ -267,8 +261,7 @@ Memory backed devices are indicated by the mapping's backing device info having
the memory_backed flag set.
-========================================
-PROVIDING SHAREABLE BLOCK DEVICE SUPPORT
+Providing shareable block device support
========================================
Provision of shared mappings on block device files is exactly the same as for
@@ -276,8 +269,7 @@ character devices. If there isn't a real device underneath, then the driver
should allocate sufficient contiguous memory to honour any supported mapping.
-=================================
-ADJUSTING PAGE TRIMMING BEHAVIOUR
+Adjusting page trimming behaviour
=================================
NOMMU mmap automatically rounds up to the nearest power-of-2 number of pages
@@ -288,4 +280,4 @@ allocator. In order to retain finer-grained control over fragmentation, this
behaviour can either be disabled completely, or bumped up to a higher page
watermark where trimming begins.
-Page trimming behaviour is configurable via the sysctl `vm.nr_trim_pages'.
+Page trimming behaviour is configurable via the sysctl ``vm.nr_trim_pages``.
diff --git a/Documentation/ntb.txt b/Documentation/ntb.txt
index 1d9bbabb6c79..a043854d28df 100644
--- a/Documentation/ntb.txt
+++ b/Documentation/ntb.txt
@@ -1,16 +1,21 @@
-# NTB Drivers
+===========
+NTB Drivers
+===========
NTB (Non-Transparent Bridge) is a type of PCI-Express bridge chip that connects
-the separate memory systems of two computers to the same PCI-Express fabric.
-Existing NTB hardware supports a common feature set, including scratchpad
-registers, doorbell registers, and memory translation windows. Scratchpad
-registers are read-and-writable registers that are accessible from either side
-of the device, so that peers can exchange a small amount of information at a
-fixed address. Doorbell registers provide a way for peers to send interrupt
-events. Memory windows allow translated read and write access to the peer
-memory.
-
-## NTB Core Driver (ntb)
+the separate memory systems of two or more computers to the same PCI-Express
+fabric. Existing NTB hardware supports a common feature set: doorbell
+registers and memory translation windows, as well as non common features like
+scratchpad and message registers. Scratchpad registers are read-and-writable
+registers that are accessible from either side of the device, so that peers can
+exchange a small amount of information at a fixed address. Message registers can
+be utilized for the same purpose. Additionally they are provided with with
+special status bits to make sure the information isn't rewritten by another
+peer. Doorbell registers provide a way for peers to send interrupt events.
+Memory windows allow translated read and write access to the peer memory.
+
+NTB Core Driver (ntb)
+=====================
The NTB core driver defines an api wrapping the common feature set, and allows
clients interested in NTB features to discover NTB the devices supported by
@@ -18,7 +23,8 @@ hardware drivers. The term "client" is used here to mean an upper layer
component making use of the NTB api. The term "driver," or "hardware driver,"
is used here to mean a driver for a specific vendor and model of NTB hardware.
-## NTB Client Drivers
+NTB Client Drivers
+==================
NTB client drivers should register with the NTB core driver. After
registering, the client probe and remove functions will be called appropriately
@@ -26,7 +32,90 @@ as ntb hardware, or hardware drivers, are inserted and removed. The
registration uses the Linux Device framework, so it should feel familiar to
anyone who has written a pci driver.
-### NTB Transport Client (ntb\_transport) and NTB Netdev (ntb\_netdev)
+NTB Typical client driver implementation
+----------------------------------------
+
+Primary purpose of NTB is to share some peace of memory between at least two
+systems. So the NTB device features like Scratchpad/Message registers are
+mainly used to perform the proper memory window initialization. Typically
+there are two types of memory window interfaces supported by the NTB API:
+inbound translation configured on the local ntb port and outbound translation
+configured by the peer, on the peer ntb port. The first type is
+depicted on the next figure
+
+Inbound translation:
+ Memory: Local NTB Port: Peer NTB Port: Peer MMIO:
+ ____________
+ | dma-mapped |-ntb_mw_set_trans(addr) |
+ | memory | _v____________ | ______________
+ | (addr) |<======| MW xlat addr |<====| MW base addr |<== memory-mapped IO
+ |------------| |--------------| | |--------------|
+
+So typical scenario of the first type memory window initialization looks:
+1) allocate a memory region, 2) put translated address to NTB config,
+3) somehow notify a peer device of performed initialization, 4) peer device
+maps corresponding outbound memory window so to have access to the shared
+memory region.
+
+The second type of interface, that implies the shared windows being
+initialized by a peer device, is depicted on the figure:
+
+Outbound translation:
+ Memory: Local NTB Port: Peer NTB Port: Peer MMIO:
+ ____________ ______________
+ | dma-mapped | | | MW base addr |<== memory-mapped IO
+ | memory | | |--------------|
+ | (addr) |<===================| MW xlat addr |<-ntb_peer_mw_set_trans(addr)
+ |------------| | |--------------|
+
+Typical scenario of the second type interface initialization would be:
+1) allocate a memory region, 2) somehow deliver a translated address to a peer
+device, 3) peer puts the translated address to NTB config, 4) peer device maps
+outbound memory window so to have access to the shared memory region.
+
+As one can see the described scenarios can be combined in one portable
+algorithm.
+ Local device:
+ 1) Allocate memory for a shared window
+ 2) Initialize memory window by translated address of the allocated region
+ (it may fail if local memory window initialization is unsupported)
+ 3) Send the translated address and memory window index to a peer device
+ Peer device:
+ 1) Initialize memory window with retrieved address of the allocated
+ by another device memory region (it may fail if peer memory window
+ initialization is unsupported)
+ 2) Map outbound memory window
+
+In accordance with this scenario, the NTB Memory Window API can be used as
+follows:
+ Local device:
+ 1) ntb_mw_count(pidx) - retrieve number of memory ranges, which can
+ be allocated for memory windows between local device and peer device
+ of port with specified index.
+ 2) ntb_get_align(pidx, midx) - retrieve parameters restricting the
+ shared memory region alignment and size. Then memory can be properly
+ allocated.
+ 3) Allocate physically contiguous memory region in compliance with
+ restrictions retrieved in 2).
+ 4) ntb_mw_set_trans(pidx, midx) - try to set translation address of
+ the memory window with specified index for the defined peer device
+ (it may fail if local translated address setting is not supported)
+ 5) Send translated base address (usually together with memory window
+ number) to the peer device using, for instance, scratchpad or message
+ registers.
+ Peer device:
+ 1) ntb_peer_mw_set_trans(pidx, midx) - try to set received from other
+ device (related to pidx) translated address for specified memory
+ window. It may fail if retrieved address, for instance, exceeds
+ maximum possible address or isn't properly aligned.
+ 2) ntb_peer_mw_get_addr(widx) - retrieve MMIO address to map the memory
+ window so to have an access to the shared memory.
+
+Also it is worth to note, that method ntb_mw_count(pidx) should return the
+same value as ntb_peer_mw_count() on the peer with port index - pidx.
+
+NTB Transport Client (ntb\_transport) and NTB Netdev (ntb\_netdev)
+------------------------------------------------------------------
The primary client for NTB is the Transport client, used in tandem with NTB
Netdev. These drivers function together to create a logical link to the peer,
@@ -37,7 +126,8 @@ Transport queue pair. Network data is copied between socket buffers and the
Transport queue pair buffer. The Transport client may be used for other things
besides Netdev, however no other applications have yet been written.
-### NTB Ping Pong Test Client (ntb\_pingpong)
+NTB Ping Pong Test Client (ntb\_pingpong)
+-----------------------------------------
The Ping Pong test client serves as a demonstration to exercise the doorbell
and scratchpad registers of NTB hardware, and as an example simple NTB client.
@@ -64,7 +154,8 @@ Module Parameters:
* dyndbg - It is suggested to specify dyndbg=+p when loading this module, and
then to observe debugging output on the console.
-### NTB Tool Test Client (ntb\_tool)
+NTB Tool Test Client (ntb\_tool)
+--------------------------------
The Tool test client serves for debugging, primarily, ntb hardware and drivers.
The Tool provides access through debugfs for reading, setting, and clearing the
@@ -74,48 +165,60 @@ The Tool does not currently have any module parameters.
Debugfs Files:
-* *debugfs*/ntb\_tool/*hw*/ - A directory in debugfs will be created for each
+* *debugfs*/ntb\_tool/*hw*/
+ A directory in debugfs will be created for each
NTB device probed by the tool. This directory is shortened to *hw*
below.
-* *hw*/db - This file is used to read, set, and clear the local doorbell. Not
+* *hw*/db
+ This file is used to read, set, and clear the local doorbell. Not
all operations may be supported by all hardware. To read the doorbell,
read the file. To set the doorbell, write `s` followed by the bits to
set (eg: `echo 's 0x0101' > db`). To clear the doorbell, write `c`
followed by the bits to clear.
-* *hw*/mask - This file is used to read, set, and clear the local doorbell mask.
+* *hw*/mask
+ This file is used to read, set, and clear the local doorbell mask.
See *db* for details.
-* *hw*/peer\_db - This file is used to read, set, and clear the peer doorbell.
+* *hw*/peer\_db
+ This file is used to read, set, and clear the peer doorbell.
See *db* for details.
-* *hw*/peer\_mask - This file is used to read, set, and clear the peer doorbell
+* *hw*/peer\_mask
+ This file is used to read, set, and clear the peer doorbell
mask. See *db* for details.
-* *hw*/spad - This file is used to read and write local scratchpads. To read
+* *hw*/spad
+ This file is used to read and write local scratchpads. To read
the values of all scratchpads, read the file. To write values, write a
series of pairs of scratchpad number and value
(eg: `echo '4 0x123 7 0xabc' > spad`
# to set scratchpads `4` and `7` to `0x123` and `0xabc`, respectively).
-* *hw*/peer\_spad - This file is used to read and write peer scratchpads. See
+* *hw*/peer\_spad
+ This file is used to read and write peer scratchpads. See
*spad* for details.
-## NTB Hardware Drivers
+NTB Hardware Drivers
+====================
NTB hardware drivers should register devices with the NTB core driver. After
registering, clients probe and remove functions will be called.
-### NTB Intel Hardware Driver (ntb\_hw\_intel)
+NTB Intel Hardware Driver (ntb\_hw\_intel)
+------------------------------------------
The Intel hardware driver supports NTB on Xeon and Atom CPUs.
Module Parameters:
-* b2b\_mw\_idx - If the peer ntb is to be accessed via a memory window, then use
+* b2b\_mw\_idx
+ If the peer ntb is to be accessed via a memory window, then use
this memory window to access the peer ntb. A value of zero or positive
starts from the first mw idx, and a negative value starts from the last
mw idx. Both sides MUST set the same value here! The default value is
`-1`.
-* b2b\_mw\_share - If the peer ntb is to be accessed via a memory window, and if
+* b2b\_mw\_share
+ If the peer ntb is to be accessed via a memory window, and if
the memory window is large enough, still allow the client to use the
second half of the memory window for address translation to the peer.
-* xeon\_b2b\_usd\_bar2\_addr64 - If using B2B topology on Xeon hardware, use
+* xeon\_b2b\_usd\_bar2\_addr64
+ If using B2B topology on Xeon hardware, use
this 64 bit address on the bus between the NTB devices for the window
at BAR2, on the upstream side of the link.
* xeon\_b2b\_usd\_bar4\_addr64 - See *xeon\_b2b\_bar2\_addr64*.
diff --git a/Documentation/numastat.txt b/Documentation/numastat.txt
index 520327790d54..aaf1667489f8 100644
--- a/Documentation/numastat.txt
+++ b/Documentation/numastat.txt
@@ -1,10 +1,12 @@
-
+===============================
Numa policy hit/miss statistics
+===============================
/sys/devices/system/node/node*/numastat
All units are pages. Hugepages have separate counters.
+=============== ============================================================
numa_hit A process wanted to allocate memory from this node,
and succeeded.
@@ -20,6 +22,7 @@ other_node A process ran on this node and got memory from another node.
interleave_hit Interleaving wanted to allocate from this node
and succeeded.
+=============== ============================================================
For easier reading you can use the numastat utility from the numactl package
(http://oss.sgi.com/projects/libnuma/). Note that it only works
diff --git a/Documentation/nvmem/nvmem.txt b/Documentation/nvmem/nvmem.txt
index dbd40d879239..8d8d8f58f96f 100644
--- a/Documentation/nvmem/nvmem.txt
+++ b/Documentation/nvmem/nvmem.txt
@@ -112,7 +112,7 @@ take nvmem_device as parameter.
5. Releasing a reference to the NVMEM
=====================================
-When a consumers no longer needs the NVMEM, it has to release the reference
+When a consumer no longer needs the NVMEM, it has to release the reference
to the NVMEM it has obtained using the APIs mentioned in the above section.
The NVMEM framework provides 2 APIs to release a reference to the NVMEM.
diff --git a/Documentation/padata.txt b/Documentation/padata.txt
index 7ddfe216a0aa..b103d0c82000 100644
--- a/Documentation/padata.txt
+++ b/Documentation/padata.txt
@@ -1,5 +1,8 @@
+=======================================
The padata parallel execution mechanism
-Last updated for 2.6.36
+=======================================
+
+:Last updated: for 2.6.36
Padata is a mechanism by which the kernel can farm work out to be done in
parallel on multiple CPUs while retaining the ordering of tasks. It was
@@ -9,7 +12,7 @@ those packets. The crypto developers made a point of writing padata in a
sufficiently general fashion that it could be put to other uses as well.
The first step in using padata is to set up a padata_instance structure for
-overall control of how tasks are to be run:
+overall control of how tasks are to be run::
#include <linux/padata.h>
@@ -24,7 +27,7 @@ The workqueue wq is where the work will actually be done; it should be
a multithreaded queue, naturally.
To allocate a padata instance with the cpu_possible_mask for both
-cpumasks this helper function can be used:
+cpumasks this helper function can be used::
struct padata_instance *padata_alloc_possible(struct workqueue_struct *wq);
@@ -36,7 +39,7 @@ it is legal to supply a cpumask to padata that contains offline CPUs.
Once an offline CPU in the user supplied cpumask comes online, padata
is going to use it.
-There are functions for enabling and disabling the instance:
+There are functions for enabling and disabling the instance::
int padata_start(struct padata_instance *pinst);
void padata_stop(struct padata_instance *pinst);
@@ -48,7 +51,7 @@ padata cpumask contains no active CPU (flag not set).
padata_stop clears the flag and blocks until the padata instance
is unused.
-The list of CPUs to be used can be adjusted with these functions:
+The list of CPUs to be used can be adjusted with these functions::
int padata_set_cpumasks(struct padata_instance *pinst,
cpumask_var_t pcpumask,
@@ -71,12 +74,12 @@ padata_add_cpu/padata_remove_cpu are used. cpu specifies the CPU to add or
remove and mask is one of PADATA_CPU_SERIAL, PADATA_CPU_PARALLEL.
If a user is interested in padata cpumask changes, he can register to
-the padata cpumask change notifier:
+the padata cpumask change notifier::
int padata_register_cpumask_notifier(struct padata_instance *pinst,
struct notifier_block *nblock);
-To unregister from that notifier:
+To unregister from that notifier::
int padata_unregister_cpumask_notifier(struct padata_instance *pinst,
struct notifier_block *nblock);
@@ -84,7 +87,7 @@ To unregister from that notifier:
The padata cpumask change notifier notifies about changes of the usable
cpumasks, i.e. the subset of active CPUs in the user supplied cpumask.
-Padata calls the notifier chain with:
+Padata calls the notifier chain with::
blocking_notifier_call_chain(&pinst->cpumask_change_notifier,
notification_mask,
@@ -95,7 +98,7 @@ is one of PADATA_CPU_SERIAL, PADATA_CPU_PARALLEL and cpumask is a pointer
to a struct padata_cpumask that contains the new cpumask information.
Actually submitting work to the padata instance requires the creation of a
-padata_priv structure:
+padata_priv structure::
struct padata_priv {
/* Other stuff here... */
@@ -110,7 +113,7 @@ parallel() and serial() functions should be provided. Those functions will
be called in the process of getting the work done as we will see
momentarily.
-The submission of work is done with:
+The submission of work is done with::
int padata_do_parallel(struct padata_instance *pinst,
struct padata_priv *padata, int cb_cpu);
@@ -138,7 +141,7 @@ need not be completed during this call, but, if parallel() leaves work
outstanding, it should be prepared to be called again with a new job before
the previous one completes. When a task does complete, parallel() (or
whatever function actually finishes the job) should inform padata of the
-fact with a call to:
+fact with a call to::
void padata_do_serial(struct padata_priv *padata);
@@ -151,7 +154,7 @@ pains to ensure that tasks are completed in the order in which they were
submitted.
The one remaining function in the padata API should be called to clean up
-when a padata instance is no longer needed:
+when a padata instance is no longer needed::
void padata_free(struct padata_instance *pinst);
diff --git a/Documentation/parport-lowlevel.txt b/Documentation/parport-lowlevel.txt
index 120eb20dbb09..0633d70ffda7 100644
--- a/Documentation/parport-lowlevel.txt
+++ b/Documentation/parport-lowlevel.txt
@@ -1,11 +1,12 @@
+===============================
PARPORT interface documentation
--------------------------------
+===============================
-Time-stamp: <2000-02-24 13:30:20 twaugh>
+:Time-stamp: <2000-02-24 13:30:20 twaugh>
Described here are the following functions:
-Global functions:
+Global functions::
parport_register_driver
parport_unregister_driver
parport_enumerate
@@ -31,7 +32,8 @@ Global functions:
parport_set_timeout
Port functions (can be overridden by low-level drivers):
- SPP:
+
+ SPP::
port->ops->read_data
port->ops->write_data
port->ops->read_status
@@ -43,23 +45,23 @@ Port functions (can be overridden by low-level drivers):
port->ops->data_forward
port->ops->data_reverse
- EPP:
+ EPP::
port->ops->epp_write_data
port->ops->epp_read_data
port->ops->epp_write_addr
port->ops->epp_read_addr
- ECP:
+ ECP::
port->ops->ecp_write_data
port->ops->ecp_read_data
port->ops->ecp_write_addr
- Other:
+ Other::
port->ops->nibble_read_data
port->ops->byte_read_data
port->ops->compat_write_data
-The parport subsystem comprises 'parport' (the core port-sharing
+The parport subsystem comprises ``parport`` (the core port-sharing
code), and a variety of low-level drivers that actually do the port
accesses. Each low-level driver handles a particular style of port
(PC, Amiga, and so on).
@@ -70,14 +72,14 @@ into global functions and port functions.
The global functions are mostly for communicating between the device
driver and the parport subsystem: acquiring a list of available ports,
claiming a port for exclusive use, and so on. They also include
-'generic' functions for doing standard things that will work on any
+``generic`` functions for doing standard things that will work on any
IEEE 1284-capable architecture.
The port functions are provided by the low-level drivers, although the
-core parport module provides generic 'defaults' for some routines.
+core parport module provides generic ``defaults`` for some routines.
The port functions can be split into three groups: SPP, EPP, and ECP.
-SPP (Standard Parallel Port) functions modify so-called 'SPP'
+SPP (Standard Parallel Port) functions modify so-called ``SPP``
registers: data, status, and control. The hardware may not actually
have registers exactly like that, but the PC does and this interface is
modelled after common PC implementations. Other low-level drivers may
@@ -95,58 +97,63 @@ to cope with peripherals that only tenuously support IEEE 1284, a
low-level driver specific function is provided, for altering 'fudge
factors'.
-GLOBAL FUNCTIONS
-----------------
+Global functions
+================
parport_register_driver - register a device driver with parport
------------------------
+---------------------------------------------------------------
SYNOPSIS
+^^^^^^^^
+
+::
-#include <linux/parport.h>
+ #include <linux/parport.h>
-struct parport_driver {
- const char *name;
- void (*attach) (struct parport *);
- void (*detach) (struct parport *);
- struct parport_driver *next;
-};
-int parport_register_driver (struct parport_driver *driver);
+ struct parport_driver {
+ const char *name;
+ void (*attach) (struct parport *);
+ void (*detach) (struct parport *);
+ struct parport_driver *next;
+ };
+ int parport_register_driver (struct parport_driver *driver);
DESCRIPTION
+^^^^^^^^^^^
In order to be notified about parallel ports when they are detected,
parport_register_driver should be called. Your driver will
immediately be notified of all ports that have already been detected,
and of each new port as low-level drivers are loaded.
-A 'struct parport_driver' contains the textual name of your driver,
+A ``struct parport_driver`` contains the textual name of your driver,
a pointer to a function to handle new ports, and a pointer to a
function to handle ports going away due to a low-level driver
unloading. Ports will only be detached if they are not being used
(i.e. there are no devices registered on them).
-The visible parts of the 'struct parport *' argument given to
-attach/detach are:
-
-struct parport
-{
- struct parport *next; /* next parport in list */
- const char *name; /* port's name */
- unsigned int modes; /* bitfield of hardware modes */
- struct parport_device_info probe_info;
- /* IEEE1284 info */
- int number; /* parport index */
- struct parport_operations *ops;
- ...
-};
+The visible parts of the ``struct parport *`` argument given to
+attach/detach are::
+
+ struct parport
+ {
+ struct parport *next; /* next parport in list */
+ const char *name; /* port's name */
+ unsigned int modes; /* bitfield of hardware modes */
+ struct parport_device_info probe_info;
+ /* IEEE1284 info */
+ int number; /* parport index */
+ struct parport_operations *ops;
+ ...
+ };
There are other members of the structure, but they should not be
touched.
-The 'modes' member summarises the capabilities of the underlying
+The ``modes`` member summarises the capabilities of the underlying
hardware. It consists of flags which may be bitwise-ored together:
+ ============================= ===============================================
PARPORT_MODE_PCSPP IBM PC registers are available,
i.e. functions that act on data,
control and status registers are
@@ -169,297 +176,351 @@ hardware. It consists of flags which may be bitwise-ored together:
GFP_DMA flag with kmalloc) to the
low-level driver in order to take
advantage of it.
+ ============================= ===============================================
-There may be other flags in 'modes' as well.
+There may be other flags in ``modes`` as well.
-The contents of 'modes' is advisory only. For example, if the
-hardware is capable of DMA, and PARPORT_MODE_DMA is in 'modes', it
+The contents of ``modes`` is advisory only. For example, if the
+hardware is capable of DMA, and PARPORT_MODE_DMA is in ``modes``, it
doesn't necessarily mean that DMA will always be used when possible.
Similarly, hardware that is capable of assisting ECP transfers won't
necessarily be used.
RETURN VALUE
+^^^^^^^^^^^^
Zero on success, otherwise an error code.
ERRORS
+^^^^^^
None. (Can it fail? Why return int?)
EXAMPLE
+^^^^^^^
-static void lp_attach (struct parport *port)
-{
- ...
- private = kmalloc (...);
- dev[count++] = parport_register_device (...);
- ...
-}
+::
-static void lp_detach (struct parport *port)
-{
- ...
-}
+ static void lp_attach (struct parport *port)
+ {
+ ...
+ private = kmalloc (...);
+ dev[count++] = parport_register_device (...);
+ ...
+ }
-static struct parport_driver lp_driver = {
- "lp",
- lp_attach,
- lp_detach,
- NULL /* always put NULL here */
-};
+ static void lp_detach (struct parport *port)
+ {
+ ...
+ }
-int lp_init (void)
-{
- ...
- if (parport_register_driver (&lp_driver)) {
- /* Failed; nothing we can do. */
- return -EIO;
+ static struct parport_driver lp_driver = {
+ "lp",
+ lp_attach,
+ lp_detach,
+ NULL /* always put NULL here */
+ };
+
+ int lp_init (void)
+ {
+ ...
+ if (parport_register_driver (&lp_driver)) {
+ /* Failed; nothing we can do. */
+ return -EIO;
+ }
+ ...
}
- ...
-}
+
SEE ALSO
+^^^^^^^^
parport_unregister_driver, parport_register_device, parport_enumerate
-
+
+
+
parport_unregister_driver - tell parport to forget about this driver
--------------------------
+--------------------------------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_driver {
- const char *name;
- void (*attach) (struct parport *);
- void (*detach) (struct parport *);
- struct parport_driver *next;
-};
-void parport_unregister_driver (struct parport_driver *driver);
+ #include <linux/parport.h>
+
+ struct parport_driver {
+ const char *name;
+ void (*attach) (struct parport *);
+ void (*detach) (struct parport *);
+ struct parport_driver *next;
+ };
+ void parport_unregister_driver (struct parport_driver *driver);
DESCRIPTION
+^^^^^^^^^^^
This tells parport not to notify the device driver of new ports or of
ports going away. Registered devices belonging to that driver are NOT
unregistered: parport_unregister_device must be used for each one.
EXAMPLE
+^^^^^^^
-void cleanup_module (void)
-{
- ...
- /* Stop notifications. */
- parport_unregister_driver (&lp_driver);
+::
- /* Unregister devices. */
- for (i = 0; i < NUM_DEVS; i++)
- parport_unregister_device (dev[i]);
- ...
-}
+ void cleanup_module (void)
+ {
+ ...
+ /* Stop notifications. */
+ parport_unregister_driver (&lp_driver);
+
+ /* Unregister devices. */
+ for (i = 0; i < NUM_DEVS; i++)
+ parport_unregister_device (dev[i]);
+ ...
+ }
SEE ALSO
+^^^^^^^^
parport_register_driver, parport_enumerate
-
+
+
+
parport_enumerate - retrieve a list of parallel ports (DEPRECATED)
------------------
+------------------------------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport *parport_enumerate (void);
+ #include <linux/parport.h>
+
+ struct parport *parport_enumerate (void);
DESCRIPTION
+^^^^^^^^^^^
Retrieve the first of a list of valid parallel ports for this machine.
-Successive parallel ports can be found using the 'struct parport
-*next' element of the 'struct parport *' that is returned. If 'next'
+Successive parallel ports can be found using the ``struct parport
+*next`` element of the ``struct parport *`` that is returned. If ``next``
is NULL, there are no more parallel ports in the list. The number of
ports in the list will not exceed PARPORT_MAX.
RETURN VALUE
+^^^^^^^^^^^^
-A 'struct parport *' describing a valid parallel port for the machine,
+A ``struct parport *`` describing a valid parallel port for the machine,
or NULL if there are none.
ERRORS
+^^^^^^
This function can return NULL to indicate that there are no parallel
ports to use.
EXAMPLE
+^^^^^^^
+
+::
-int detect_device (void)
-{
- struct parport *port;
+ int detect_device (void)
+ {
+ struct parport *port;
+
+ for (port = parport_enumerate ();
+ port != NULL;
+ port = port->next) {
+ /* Try to detect a device on the port... */
+ ...
+ }
+ }
- for (port = parport_enumerate ();
- port != NULL;
- port = port->next) {
- /* Try to detect a device on the port... */
...
- }
}
- ...
-}
-
NOTES
+^^^^^
parport_enumerate is deprecated; parport_register_driver should be
used instead.
SEE ALSO
+^^^^^^^^
parport_register_driver, parport_unregister_driver
-
+
+
+
parport_register_device - register to use a port
------------------------
+------------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-typedef int (*preempt_func) (void *handle);
-typedef void (*wakeup_func) (void *handle);
-typedef int (*irq_func) (int irq, void *handle, struct pt_regs *);
+ #include <linux/parport.h>
-struct pardevice *parport_register_device(struct parport *port,
- const char *name,
- preempt_func preempt,
- wakeup_func wakeup,
- irq_func irq,
- int flags,
- void *handle);
+ typedef int (*preempt_func) (void *handle);
+ typedef void (*wakeup_func) (void *handle);
+ typedef int (*irq_func) (int irq, void *handle, struct pt_regs *);
+
+ struct pardevice *parport_register_device(struct parport *port,
+ const char *name,
+ preempt_func preempt,
+ wakeup_func wakeup,
+ irq_func irq,
+ int flags,
+ void *handle);
DESCRIPTION
+^^^^^^^^^^^
Use this function to register your device driver on a parallel port
-('port'). Once you have done that, you will be able to use
+(``port``). Once you have done that, you will be able to use
parport_claim and parport_release in order to use the port.
-The ('name') argument is the name of the device that appears in /proc
+The (``name``) argument is the name of the device that appears in /proc
filesystem. The string must be valid for the whole lifetime of the
device (until parport_unregister_device is called).
This function will register three callbacks into your driver:
-'preempt', 'wakeup' and 'irq'. Each of these may be NULL in order to
+``preempt``, ``wakeup`` and ``irq``. Each of these may be NULL in order to
indicate that you do not want a callback.
-When the 'preempt' function is called, it is because another driver
-wishes to use the parallel port. The 'preempt' function should return
+When the ``preempt`` function is called, it is because another driver
+wishes to use the parallel port. The ``preempt`` function should return
non-zero if the parallel port cannot be released yet -- if zero is
returned, the port is lost to another driver and the port must be
re-claimed before use.
-The 'wakeup' function is called once another driver has released the
+The ``wakeup`` function is called once another driver has released the
port and no other driver has yet claimed it. You can claim the
-parallel port from within the 'wakeup' function (in which case the
+parallel port from within the ``wakeup`` function (in which case the
claim is guaranteed to succeed), or choose not to if you don't need it
now.
If an interrupt occurs on the parallel port your driver has claimed,
-the 'irq' function will be called. (Write something about shared
+the ``irq`` function will be called. (Write something about shared
interrupts here.)
-The 'handle' is a pointer to driver-specific data, and is passed to
+The ``handle`` is a pointer to driver-specific data, and is passed to
the callback functions.
-'flags' may be a bitwise combination of the following flags:
+``flags`` may be a bitwise combination of the following flags:
+ ===================== =================================================
Flag Meaning
+ ===================== =================================================
PARPORT_DEV_EXCL The device cannot share the parallel port at all.
Use this only when absolutely necessary.
+ ===================== =================================================
The typedefs are not actually defined -- they are only shown in order
to make the function prototype more readable.
-The visible parts of the returned 'struct pardevice' are:
+The visible parts of the returned ``struct pardevice`` are::
-struct pardevice {
- struct parport *port; /* Associated port */
- void *private; /* Device driver's 'handle' */
- ...
-};
+ struct pardevice {
+ struct parport *port; /* Associated port */
+ void *private; /* Device driver's 'handle' */
+ ...
+ };
RETURN VALUE
+^^^^^^^^^^^^
-A 'struct pardevice *': a handle to the registered parallel port
+A ``struct pardevice *``: a handle to the registered parallel port
device that can be used for parport_claim, parport_release, etc.
ERRORS
+^^^^^^
A return value of NULL indicates that there was a problem registering
a device on that port.
EXAMPLE
+^^^^^^^
+
+::
+
+ static int preempt (void *handle)
+ {
+ if (busy_right_now)
+ return 1;
+
+ must_reclaim_port = 1;
+ return 0;
+ }
+
+ static void wakeup (void *handle)
+ {
+ struct toaster *private = handle;
+ struct pardevice *dev = private->dev;
+ if (!dev) return; /* avoid races */
+
+ if (want_port)
+ parport_claim (dev);
+ }
+
+ static int toaster_detect (struct toaster *private, struct parport *port)
+ {
+ private->dev = parport_register_device (port, "toaster", preempt,
+ wakeup, NULL, 0,
+ private);
+ if (!private->dev)
+ /* Couldn't register with parport. */
+ return -EIO;
-static int preempt (void *handle)
-{
- if (busy_right_now)
- return 1;
-
- must_reclaim_port = 1;
- return 0;
-}
-
-static void wakeup (void *handle)
-{
- struct toaster *private = handle;
- struct pardevice *dev = private->dev;
- if (!dev) return; /* avoid races */
-
- if (want_port)
- parport_claim (dev);
-}
-
-static int toaster_detect (struct toaster *private, struct parport *port)
-{
- private->dev = parport_register_device (port, "toaster", preempt,
- wakeup, NULL, 0,
- private);
- if (!private->dev)
- /* Couldn't register with parport. */
- return -EIO;
-
- must_reclaim_port = 0;
- busy_right_now = 1;
- parport_claim_or_block (private->dev);
- ...
- /* Don't need the port while the toaster warms up. */
- busy_right_now = 0;
- ...
- busy_right_now = 1;
- if (must_reclaim_port) {
- parport_claim_or_block (private->dev);
must_reclaim_port = 0;
+ busy_right_now = 1;
+ parport_claim_or_block (private->dev);
+ ...
+ /* Don't need the port while the toaster warms up. */
+ busy_right_now = 0;
+ ...
+ busy_right_now = 1;
+ if (must_reclaim_port) {
+ parport_claim_or_block (private->dev);
+ must_reclaim_port = 0;
+ }
+ ...
}
- ...
-}
SEE ALSO
+^^^^^^^^
parport_unregister_device, parport_claim
+
+
parport_unregister_device - finish using a port
--------------------------
+-----------------------------------------------
SYNPOPSIS
-#include <linux/parport.h>
+::
+
+ #include <linux/parport.h>
-void parport_unregister_device (struct pardevice *dev);
+ void parport_unregister_device (struct pardevice *dev);
DESCRIPTION
+^^^^^^^^^^^
This function is the opposite of parport_register_device. After using
-parport_unregister_device, 'dev' is no longer a valid device handle.
+parport_unregister_device, ``dev`` is no longer a valid device handle.
You should not unregister a device that is currently claimed, although
if you do it will be released automatically.
EXAMPLE
+^^^^^^^
+
+::
...
kfree (dev->private); /* before we lose the pointer */
@@ -467,460 +528,602 @@ EXAMPLE
...
SEE ALSO
+^^^^^^^^
+
parport_unregister_driver
parport_claim, parport_claim_or_block - claim the parallel port for a device
--------------------------------------
+----------------------------------------------------------------------------
SYNOPSIS
+^^^^^^^^
+
+::
-#include <linux/parport.h>
+ #include <linux/parport.h>
-int parport_claim (struct pardevice *dev);
-int parport_claim_or_block (struct pardevice *dev);
+ int parport_claim (struct pardevice *dev);
+ int parport_claim_or_block (struct pardevice *dev);
DESCRIPTION
+^^^^^^^^^^^
These functions attempt to gain control of the parallel port on which
-'dev' is registered. 'parport_claim' does not block, but
-'parport_claim_or_block' may do. (Put something here about blocking
+``dev`` is registered. ``parport_claim`` does not block, but
+``parport_claim_or_block`` may do. (Put something here about blocking
interruptibly or non-interruptibly.)
You should not try to claim a port that you have already claimed.
RETURN VALUE
+^^^^^^^^^^^^
A return value of zero indicates that the port was successfully
claimed, and the caller now has possession of the parallel port.
-If 'parport_claim_or_block' blocks before returning successfully, the
+If ``parport_claim_or_block`` blocks before returning successfully, the
return value is positive.
ERRORS
+^^^^^^
+========== ==========================================================
-EAGAIN The port is unavailable at the moment, but another attempt
to claim it may succeed.
+========== ==========================================================
SEE ALSO
+^^^^^^^^
+
parport_release
parport_release - release the parallel port
----------------
+-------------------------------------------
SYNOPSIS
+^^^^^^^^
+
+::
-#include <linux/parport.h>
+ #include <linux/parport.h>
-void parport_release (struct pardevice *dev);
+ void parport_release (struct pardevice *dev);
DESCRIPTION
+^^^^^^^^^^^
Once a parallel port device has been claimed, it can be released using
-'parport_release'. It cannot fail, but you should not release a
+``parport_release``. It cannot fail, but you should not release a
device that you do not have possession of.
EXAMPLE
+^^^^^^^
-static size_t write (struct pardevice *dev, const void *buf,
- size_t len)
-{
- ...
- written = dev->port->ops->write_ecp_data (dev->port, buf,
- len);
- parport_release (dev);
- ...
-}
+::
+
+ static size_t write (struct pardevice *dev, const void *buf,
+ size_t len)
+ {
+ ...
+ written = dev->port->ops->write_ecp_data (dev->port, buf,
+ len);
+ parport_release (dev);
+ ...
+ }
SEE ALSO
+^^^^^^^^
change_mode, parport_claim, parport_claim_or_block, parport_yield
-
+
+
+
parport_yield, parport_yield_blocking - temporarily release a parallel port
--------------------------------------
+---------------------------------------------------------------------------
SYNOPSIS
+^^^^^^^^
+
+::
-#include <linux/parport.h>
+ #include <linux/parport.h>
-int parport_yield (struct pardevice *dev)
-int parport_yield_blocking (struct pardevice *dev);
+ int parport_yield (struct pardevice *dev)
+ int parport_yield_blocking (struct pardevice *dev);
DESCRIPTION
+^^^^^^^^^^^
When a driver has control of a parallel port, it may allow another
-driver to temporarily 'borrow' it. 'parport_yield' does not block;
-'parport_yield_blocking' may do.
+driver to temporarily ``borrow`` it. ``parport_yield`` does not block;
+``parport_yield_blocking`` may do.
RETURN VALUE
+^^^^^^^^^^^^
A return value of zero indicates that the caller still owns the port
and the call did not block.
-A positive return value from 'parport_yield_blocking' indicates that
+A positive return value from ``parport_yield_blocking`` indicates that
the caller still owns the port and the call blocked.
A return value of -EAGAIN indicates that the caller no longer owns the
port, and it must be re-claimed before use.
ERRORS
+^^^^^^
+========= ==========================================================
-EAGAIN Ownership of the parallel port was given away.
+========= ==========================================================
SEE ALSO
+^^^^^^^^
parport_release
+
+
parport_wait_peripheral - wait for status lines, up to 35ms
------------------------
+-----------------------------------------------------------
SYNOPSIS
+^^^^^^^^
+
+::
-#include <linux/parport.h>
+ #include <linux/parport.h>
-int parport_wait_peripheral (struct parport *port,
- unsigned char mask,
- unsigned char val);
+ int parport_wait_peripheral (struct parport *port,
+ unsigned char mask,
+ unsigned char val);
DESCRIPTION
+^^^^^^^^^^^
Wait for the status lines in mask to match the values in val.
RETURN VALUE
+^^^^^^^^^^^^
+======== ==========================================================
-EINTR a signal is pending
0 the status lines in mask have values in val
1 timed out while waiting (35ms elapsed)
+======== ==========================================================
SEE ALSO
+^^^^^^^^
parport_poll_peripheral
+
+
parport_poll_peripheral - wait for status lines, in usec
------------------------
+--------------------------------------------------------
SYNOPSIS
+^^^^^^^^
+
+::
-#include <linux/parport.h>
+ #include <linux/parport.h>
-int parport_poll_peripheral (struct parport *port,
- unsigned char mask,
- unsigned char val,
- int usec);
+ int parport_poll_peripheral (struct parport *port,
+ unsigned char mask,
+ unsigned char val,
+ int usec);
DESCRIPTION
+^^^^^^^^^^^
Wait for the status lines in mask to match the values in val.
RETURN VALUE
+^^^^^^^^^^^^
+======== ==========================================================
-EINTR a signal is pending
0 the status lines in mask have values in val
1 timed out while waiting (usec microseconds have elapsed)
+======== ==========================================================
SEE ALSO
+^^^^^^^^
parport_wait_peripheral
-
+
+
+
parport_wait_event - wait for an event on a port
-------------------
+------------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-int parport_wait_event (struct parport *port, signed long timeout)
+ #include <linux/parport.h>
+
+ int parport_wait_event (struct parport *port, signed long timeout)
DESCRIPTION
+^^^^^^^^^^^
Wait for an event (e.g. interrupt) on a port. The timeout is in
jiffies.
RETURN VALUE
+^^^^^^^^^^^^
+======= ==========================================================
0 success
<0 error (exit as soon as possible)
>0 timed out
-
+======= ==========================================================
+
parport_negotiate - perform IEEE 1284 negotiation
------------------
+-------------------------------------------------
SYNOPSIS
+^^^^^^^^
+
+::
-#include <linux/parport.h>
+ #include <linux/parport.h>
-int parport_negotiate (struct parport *, int mode);
+ int parport_negotiate (struct parport *, int mode);
DESCRIPTION
+^^^^^^^^^^^
Perform IEEE 1284 negotiation.
RETURN VALUE
+^^^^^^^^^^^^
+======= ==========================================================
0 handshake OK; IEEE 1284 peripheral and mode available
-1 handshake failed; peripheral not compliant (or none present)
1 handshake OK; IEEE 1284 peripheral present but mode not
available
+======= ==========================================================
SEE ALSO
+^^^^^^^^
parport_read, parport_write
-
+
+
+
parport_read - read data from device
-------------
+------------------------------------
SYNOPSIS
+^^^^^^^^
+
+::
-#include <linux/parport.h>
+ #include <linux/parport.h>
-ssize_t parport_read (struct parport *, void *buf, size_t len);
+ ssize_t parport_read (struct parport *, void *buf, size_t len);
DESCRIPTION
+^^^^^^^^^^^
Read data from device in current IEEE 1284 transfer mode. This only
works for modes that support reverse data transfer.
RETURN VALUE
+^^^^^^^^^^^^
If negative, an error code; otherwise the number of bytes transferred.
SEE ALSO
+^^^^^^^^
parport_write, parport_negotiate
-
+
+
+
parport_write - write data to device
--------------
+------------------------------------
SYNOPSIS
+^^^^^^^^
+
+::
-#include <linux/parport.h>
+ #include <linux/parport.h>
-ssize_t parport_write (struct parport *, const void *buf, size_t len);
+ ssize_t parport_write (struct parport *, const void *buf, size_t len);
DESCRIPTION
+^^^^^^^^^^^
Write data to device in current IEEE 1284 transfer mode. This only
works for modes that support forward data transfer.
RETURN VALUE
+^^^^^^^^^^^^
If negative, an error code; otherwise the number of bytes transferred.
SEE ALSO
+^^^^^^^^
parport_read, parport_negotiate
+
+
parport_open - register device for particular device number
-------------
+-----------------------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct pardevice *parport_open (int devnum, const char *name,
- int (*pf) (void *),
- void (*kf) (void *),
- void (*irqf) (int, void *,
- struct pt_regs *),
- int flags, void *handle);
+ #include <linux/parport.h>
+
+ struct pardevice *parport_open (int devnum, const char *name,
+ int (*pf) (void *),
+ void (*kf) (void *),
+ void (*irqf) (int, void *,
+ struct pt_regs *),
+ int flags, void *handle);
DESCRIPTION
+^^^^^^^^^^^
This is like parport_register_device but takes a device number instead
of a pointer to a struct parport.
RETURN VALUE
+^^^^^^^^^^^^
See parport_register_device. If no device is associated with devnum,
NULL is returned.
SEE ALSO
+^^^^^^^^
parport_register_device
-
+
+
+
parport_close - unregister device for particular device number
--------------
+--------------------------------------------------------------
SYNOPSIS
+^^^^^^^^
+
+::
-#include <linux/parport.h>
+ #include <linux/parport.h>
-void parport_close (struct pardevice *dev);
+ void parport_close (struct pardevice *dev);
DESCRIPTION
+^^^^^^^^^^^
This is the equivalent of parport_unregister_device for parport_open.
SEE ALSO
+^^^^^^^^
parport_unregister_device, parport_open
-
+
+
+
parport_device_id - obtain IEEE 1284 Device ID
------------------
+----------------------------------------------
SYNOPSIS
+^^^^^^^^
+
+::
-#include <linux/parport.h>
+ #include <linux/parport.h>
-ssize_t parport_device_id (int devnum, char *buffer, size_t len);
+ ssize_t parport_device_id (int devnum, char *buffer, size_t len);
DESCRIPTION
+^^^^^^^^^^^
Obtains the IEEE 1284 Device ID associated with a given device.
RETURN VALUE
+^^^^^^^^^^^^
If negative, an error code; otherwise, the number of bytes of buffer
that contain the device ID. The format of the device ID is as
-follows:
+follows::
-[length][ID]
+ [length][ID]
The first two bytes indicate the inclusive length of the entire Device
ID, and are in big-endian order. The ID is a sequence of pairs of the
-form:
+form::
-key:value;
+ key:value;
NOTES
+^^^^^
Many devices have ill-formed IEEE 1284 Device IDs.
SEE ALSO
+^^^^^^^^
parport_find_class, parport_find_device
-
+
+
+
parport_device_coords - convert device number to device coordinates
-------------------
+-------------------------------------------------------------------
SYNOPSIS
+^^^^^^^^
+
+::
-#include <linux/parport.h>
+ #include <linux/parport.h>
-int parport_device_coords (int devnum, int *parport, int *mux,
- int *daisy);
+ int parport_device_coords (int devnum, int *parport, int *mux,
+ int *daisy);
DESCRIPTION
+^^^^^^^^^^^
Convert between device number (zero-based) and device coordinates
(port, multiplexor, daisy chain address).
RETURN VALUE
+^^^^^^^^^^^^
-Zero on success, in which case the coordinates are (*parport, *mux,
-*daisy).
+Zero on success, in which case the coordinates are (``*parport``, ``*mux``,
+``*daisy``).
SEE ALSO
+^^^^^^^^
parport_open, parport_device_id
-
+
+
+
parport_find_class - find a device by its class
-------------------
+-----------------------------------------------
SYNOPSIS
-
-#include <linux/parport.h>
-
-typedef enum {
- PARPORT_CLASS_LEGACY = 0, /* Non-IEEE1284 device */
- PARPORT_CLASS_PRINTER,
- PARPORT_CLASS_MODEM,
- PARPORT_CLASS_NET,
- PARPORT_CLASS_HDC, /* Hard disk controller */
- PARPORT_CLASS_PCMCIA,
- PARPORT_CLASS_MEDIA, /* Multimedia device */
- PARPORT_CLASS_FDC, /* Floppy disk controller */
- PARPORT_CLASS_PORTS,
- PARPORT_CLASS_SCANNER,
- PARPORT_CLASS_DIGCAM,
- PARPORT_CLASS_OTHER, /* Anything else */
- PARPORT_CLASS_UNSPEC, /* No CLS field in ID */
- PARPORT_CLASS_SCSIADAPTER
-} parport_device_class;
-
-int parport_find_class (parport_device_class cls, int from);
+^^^^^^^^
+
+::
+
+ #include <linux/parport.h>
+
+ typedef enum {
+ PARPORT_CLASS_LEGACY = 0, /* Non-IEEE1284 device */
+ PARPORT_CLASS_PRINTER,
+ PARPORT_CLASS_MODEM,
+ PARPORT_CLASS_NET,
+ PARPORT_CLASS_HDC, /* Hard disk controller */
+ PARPORT_CLASS_PCMCIA,
+ PARPORT_CLASS_MEDIA, /* Multimedia device */
+ PARPORT_CLASS_FDC, /* Floppy disk controller */
+ PARPORT_CLASS_PORTS,
+ PARPORT_CLASS_SCANNER,
+ PARPORT_CLASS_DIGCAM,
+ PARPORT_CLASS_OTHER, /* Anything else */
+ PARPORT_CLASS_UNSPEC, /* No CLS field in ID */
+ PARPORT_CLASS_SCSIADAPTER
+ } parport_device_class;
+
+ int parport_find_class (parport_device_class cls, int from);
DESCRIPTION
+^^^^^^^^^^^
Find a device by class. The search starts from device number from+1.
RETURN VALUE
+^^^^^^^^^^^^
The device number of the next device in that class, or -1 if no such
device exists.
NOTES
+^^^^^
-Example usage:
+Example usage::
-int devnum = -1;
-while ((devnum = parport_find_class (PARPORT_CLASS_DIGCAM, devnum)) != -1) {
- struct pardevice *dev = parport_open (devnum, ...);
- ...
-}
+ int devnum = -1;
+ while ((devnum = parport_find_class (PARPORT_CLASS_DIGCAM, devnum)) != -1) {
+ struct pardevice *dev = parport_open (devnum, ...);
+ ...
+ }
SEE ALSO
+^^^^^^^^
parport_find_device, parport_open, parport_device_id
-
+
+
+
parport_find_device - find a device by its class
-------------------
+------------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-int parport_find_device (const char *mfg, const char *mdl, int from);
+ #include <linux/parport.h>
+
+ int parport_find_device (const char *mfg, const char *mdl, int from);
DESCRIPTION
+^^^^^^^^^^^
Find a device by vendor and model. The search starts from device
number from+1.
RETURN VALUE
+^^^^^^^^^^^^
The device number of the next device matching the specifications, or
-1 if no such device exists.
NOTES
+^^^^^
-Example usage:
+Example usage::
-int devnum = -1;
-while ((devnum = parport_find_device ("IOMEGA", "ZIP+", devnum)) != -1) {
- struct pardevice *dev = parport_open (devnum, ...);
- ...
-}
+ int devnum = -1;
+ while ((devnum = parport_find_device ("IOMEGA", "ZIP+", devnum)) != -1) {
+ struct pardevice *dev = parport_open (devnum, ...);
+ ...
+ }
SEE ALSO
+^^^^^^^^
parport_find_class, parport_open, parport_device_id
+
+
parport_set_timeout - set the inactivity timeout
--------------------
+------------------------------------------------
SYNOPSIS
+^^^^^^^^
+
+::
-#include <linux/parport.h>
+ #include <linux/parport.h>
-long parport_set_timeout (struct pardevice *dev, long inactivity);
+ long parport_set_timeout (struct pardevice *dev, long inactivity);
DESCRIPTION
+^^^^^^^^^^^
Set the inactivity timeout, in jiffies, for a registered device. The
previous timeout is returned.
RETURN VALUE
+^^^^^^^^^^^^
The previous timeout, in jiffies.
NOTES
+^^^^^
Some of the port->ops functions for a parport may take time, owing to
delays at the peripheral. After the peripheral has not responded for
-'inactivity' jiffies, a timeout will occur and the blocking function
+``inactivity`` jiffies, a timeout will occur and the blocking function
will return.
A timeout of 0 jiffies is a special case: the function must do as much
@@ -932,29 +1135,37 @@ Once set for a registered device, the timeout will remain at the set
value until set again.
SEE ALSO
+^^^^^^^^
port->ops->xxx_read/write_yyy
-
+
+
+
+
PORT FUNCTIONS
---------------
+==============
The functions in the port->ops structure (struct parport_operations)
are provided by the low-level driver responsible for that port.
port->ops->read_data - read the data register
---------------------
+---------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- unsigned char (*read_data) (struct parport *port);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ unsigned char (*read_data) (struct parport *port);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
If port->modes contains the PARPORT_MODE_TRISTATE flag and the
PARPORT_CONTROL_DIRECTION bit in the control register is set, this
@@ -964,45 +1175,59 @@ not set, the return value _may_ be the last value written to the data
register. Otherwise the return value is undefined.
SEE ALSO
+^^^^^^^^
write_data, read_status, write_control
+
+
port->ops->write_data - write the data register
----------------------
+-----------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- void (*write_data) (struct parport *port, unsigned char d);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ void (*write_data) (struct parport *port, unsigned char d);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
Writes to the data register. May have side-effects (a STROBE pulse,
for instance).
SEE ALSO
+^^^^^^^^
read_data, read_status, write_control
+
+
port->ops->read_status - read the status register
-----------------------
+-------------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- unsigned char (*read_status) (struct parport *port);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ unsigned char (*read_status) (struct parport *port);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
Reads from the status register. This is a bitmask:
@@ -1015,76 +1240,98 @@ Reads from the status register. This is a bitmask:
There may be other bits set.
SEE ALSO
+^^^^^^^^
read_data, write_data, write_control
+
+
port->ops->read_control - read the control register
------------------------
+---------------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- unsigned char (*read_control) (struct parport *port);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ unsigned char (*read_control) (struct parport *port);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
Returns the last value written to the control register (either from
write_control or frob_control). No port access is performed.
SEE ALSO
+^^^^^^^^
read_data, write_data, read_status, write_control
+
+
port->ops->write_control - write the control register
-------------------------
+-----------------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- void (*write_control) (struct parport *port, unsigned char s);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ void (*write_control) (struct parport *port, unsigned char s);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
-Writes to the control register. This is a bitmask:
- _______
-- PARPORT_CONTROL_STROBE (nStrobe)
- _______
-- PARPORT_CONTROL_AUTOFD (nAutoFd)
- _____
-- PARPORT_CONTROL_INIT (nInit)
- _________
-- PARPORT_CONTROL_SELECT (nSelectIn)
+Writes to the control register. This is a bitmask::
+
+ _______
+ - PARPORT_CONTROL_STROBE (nStrobe)
+ _______
+ - PARPORT_CONTROL_AUTOFD (nAutoFd)
+ _____
+ - PARPORT_CONTROL_INIT (nInit)
+ _________
+ - PARPORT_CONTROL_SELECT (nSelectIn)
SEE ALSO
+^^^^^^^^
read_data, write_data, read_status, frob_control
+
+
port->ops->frob_control - write control register bits
------------------------
+-----------------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- unsigned char (*frob_control) (struct parport *port,
- unsigned char mask,
- unsigned char val);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ unsigned char (*frob_control) (struct parport *port,
+ unsigned char mask,
+ unsigned char val);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
This is equivalent to reading from the control register, masking out
the bits in mask, exclusive-or'ing with the bits in val, and writing
@@ -1095,23 +1342,30 @@ of its contents is maintained, so frob_control is in fact only one
port access.
SEE ALSO
+^^^^^^^^
read_data, write_data, read_status, write_control
+
+
port->ops->enable_irq - enable interrupt generation
----------------------
+---------------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- void (*enable_irq) (struct parport *port);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ void (*enable_irq) (struct parport *port);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
The parallel port hardware is instructed to generate interrupts at
appropriate moments, although those moments are
@@ -1119,353 +1373,460 @@ architecture-specific. For the PC architecture, interrupts are
commonly generated on the rising edge of nAck.
SEE ALSO
+^^^^^^^^
disable_irq
+
+
port->ops->disable_irq - disable interrupt generation
-----------------------
+-----------------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- void (*disable_irq) (struct parport *port);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ void (*disable_irq) (struct parport *port);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
The parallel port hardware is instructed not to generate interrupts.
The interrupt itself is not masked.
SEE ALSO
+^^^^^^^^
enable_irq
+
+
port->ops->data_forward - enable data drivers
------------------------
+---------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- void (*data_forward) (struct parport *port);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ void (*data_forward) (struct parport *port);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
Enables the data line drivers, for 8-bit host-to-peripheral
communications.
SEE ALSO
+^^^^^^^^
data_reverse
+
+
port->ops->data_reverse - tristate the buffer
------------------------
+---------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- void (*data_reverse) (struct parport *port);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ void (*data_reverse) (struct parport *port);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
Places the data bus in a high impedance state, if port->modes has the
PARPORT_MODE_TRISTATE bit set.
SEE ALSO
+^^^^^^^^
data_forward
-
+
+
+
port->ops->epp_write_data - write EPP data
--------------------------
+------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- size_t (*epp_write_data) (struct parport *port, const void *buf,
- size_t len, int flags);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ size_t (*epp_write_data) (struct parport *port, const void *buf,
+ size_t len, int flags);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
Writes data in EPP mode, and returns the number of bytes written.
-The 'flags' parameter may be one or more of the following,
+The ``flags`` parameter may be one or more of the following,
bitwise-or'ed together:
+======================= =================================================
PARPORT_EPP_FAST Use fast transfers. Some chips provide 16-bit and
32-bit registers. However, if a transfer
times out, the return value may be unreliable.
+======================= =================================================
SEE ALSO
+^^^^^^^^
epp_read_data, epp_write_addr, epp_read_addr
+
+
port->ops->epp_read_data - read EPP data
-------------------------
+----------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- size_t (*epp_read_data) (struct parport *port, void *buf,
- size_t len, int flags);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ size_t (*epp_read_data) (struct parport *port, void *buf,
+ size_t len, int flags);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
Reads data in EPP mode, and returns the number of bytes read.
-The 'flags' parameter may be one or more of the following,
+The ``flags`` parameter may be one or more of the following,
bitwise-or'ed together:
+======================= =================================================
PARPORT_EPP_FAST Use fast transfers. Some chips provide 16-bit and
32-bit registers. However, if a transfer
times out, the return value may be unreliable.
+======================= =================================================
SEE ALSO
+^^^^^^^^
epp_write_data, epp_write_addr, epp_read_addr
-
+
+
+
port->ops->epp_write_addr - write EPP address
--------------------------
+---------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- size_t (*epp_write_addr) (struct parport *port,
- const void *buf, size_t len, int flags);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ size_t (*epp_write_addr) (struct parport *port,
+ const void *buf, size_t len, int flags);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
Writes EPP addresses (8 bits each), and returns the number written.
-The 'flags' parameter may be one or more of the following,
+The ``flags`` parameter may be one or more of the following,
bitwise-or'ed together:
+======================= =================================================
PARPORT_EPP_FAST Use fast transfers. Some chips provide 16-bit and
32-bit registers. However, if a transfer
times out, the return value may be unreliable.
+======================= =================================================
(Does PARPORT_EPP_FAST make sense for this function?)
SEE ALSO
+^^^^^^^^
epp_write_data, epp_read_data, epp_read_addr
+
+
port->ops->epp_read_addr - read EPP address
-------------------------
+-------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- size_t (*epp_read_addr) (struct parport *port, void *buf,
- size_t len, int flags);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ size_t (*epp_read_addr) (struct parport *port, void *buf,
+ size_t len, int flags);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
Reads EPP addresses (8 bits each), and returns the number read.
-The 'flags' parameter may be one or more of the following,
+The ``flags`` parameter may be one or more of the following,
bitwise-or'ed together:
+======================= =================================================
PARPORT_EPP_FAST Use fast transfers. Some chips provide 16-bit and
32-bit registers. However, if a transfer
times out, the return value may be unreliable.
+======================= =================================================
(Does PARPORT_EPP_FAST make sense for this function?)
SEE ALSO
+^^^^^^^^
epp_write_data, epp_read_data, epp_write_addr
+
+
port->ops->ecp_write_data - write a block of ECP data
--------------------------
+-----------------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- size_t (*ecp_write_data) (struct parport *port,
- const void *buf, size_t len, int flags);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ size_t (*ecp_write_data) (struct parport *port,
+ const void *buf, size_t len, int flags);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
-Writes a block of ECP data. The 'flags' parameter is ignored.
+Writes a block of ECP data. The ``flags`` parameter is ignored.
RETURN VALUE
+^^^^^^^^^^^^
The number of bytes written.
SEE ALSO
+^^^^^^^^
ecp_read_data, ecp_write_addr
+
+
port->ops->ecp_read_data - read a block of ECP data
-------------------------
+---------------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- size_t (*ecp_read_data) (struct parport *port,
- void *buf, size_t len, int flags);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ size_t (*ecp_read_data) (struct parport *port,
+ void *buf, size_t len, int flags);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
-Reads a block of ECP data. The 'flags' parameter is ignored.
+Reads a block of ECP data. The ``flags`` parameter is ignored.
RETURN VALUE
+^^^^^^^^^^^^
The number of bytes read. NB. There may be more unread data in a
FIFO. Is there a way of stunning the FIFO to prevent this?
SEE ALSO
+^^^^^^^^
ecp_write_block, ecp_write_addr
-
+
+
+
port->ops->ecp_write_addr - write a block of ECP addresses
--------------------------
+----------------------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- size_t (*ecp_write_addr) (struct parport *port,
- const void *buf, size_t len, int flags);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ size_t (*ecp_write_addr) (struct parport *port,
+ const void *buf, size_t len, int flags);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
-Writes a block of ECP addresses. The 'flags' parameter is ignored.
+Writes a block of ECP addresses. The ``flags`` parameter is ignored.
RETURN VALUE
+^^^^^^^^^^^^
The number of bytes written.
NOTES
+^^^^^
This may use a FIFO, and if so shall not return until the FIFO is empty.
SEE ALSO
+^^^^^^^^
ecp_read_data, ecp_write_data
-
+
+
+
port->ops->nibble_read_data - read a block of data in nibble mode
----------------------------
+-----------------------------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- size_t (*nibble_read_data) (struct parport *port,
- void *buf, size_t len, int flags);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ size_t (*nibble_read_data) (struct parport *port,
+ void *buf, size_t len, int flags);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
-Reads a block of data in nibble mode. The 'flags' parameter is ignored.
+Reads a block of data in nibble mode. The ``flags`` parameter is ignored.
RETURN VALUE
+^^^^^^^^^^^^
The number of whole bytes read.
SEE ALSO
+^^^^^^^^
byte_read_data, compat_write_data
+
+
port->ops->byte_read_data - read a block of data in byte mode
--------------------------
+-------------------------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- size_t (*byte_read_data) (struct parport *port,
- void *buf, size_t len, int flags);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ size_t (*byte_read_data) (struct parport *port,
+ void *buf, size_t len, int flags);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
-Reads a block of data in byte mode. The 'flags' parameter is ignored.
+Reads a block of data in byte mode. The ``flags`` parameter is ignored.
RETURN VALUE
+^^^^^^^^^^^^
The number of bytes read.
SEE ALSO
+^^^^^^^^
nibble_read_data, compat_write_data
+
+
port->ops->compat_write_data - write a block of data in compatibility mode
-----------------------------
+--------------------------------------------------------------------------
SYNOPSIS
+^^^^^^^^
-#include <linux/parport.h>
+::
-struct parport_operations {
- ...
- size_t (*compat_write_data) (struct parport *port,
- const void *buf, size_t len, int flags);
- ...
-};
+ #include <linux/parport.h>
+
+ struct parport_operations {
+ ...
+ size_t (*compat_write_data) (struct parport *port,
+ const void *buf, size_t len, int flags);
+ ...
+ };
DESCRIPTION
+^^^^^^^^^^^
-Writes a block of data in compatibility mode. The 'flags' parameter
+Writes a block of data in compatibility mode. The ``flags`` parameter
is ignored.
RETURN VALUE
+^^^^^^^^^^^^
The number of bytes written.
SEE ALSO
+^^^^^^^^
nibble_read_data, byte_read_data
diff --git a/Documentation/percpu-rw-semaphore.txt b/Documentation/percpu-rw-semaphore.txt
index 7d3c82431909..247de6410855 100644
--- a/Documentation/percpu-rw-semaphore.txt
+++ b/Documentation/percpu-rw-semaphore.txt
@@ -1,5 +1,6 @@
+====================
Percpu rw semaphores
---------------------
+====================
Percpu rw semaphores is a new read-write semaphore design that is
optimized for locking for reading.
diff --git a/Documentation/phy.txt b/Documentation/phy.txt
index 383cdd863f08..457c3e0f86d6 100644
--- a/Documentation/phy.txt
+++ b/Documentation/phy.txt
@@ -1,10 +1,14 @@
- PHY SUBSYSTEM
- Kishon Vijay Abraham I <kishon@ti.com>
+=============
+PHY subsystem
+=============
+
+:Author: Kishon Vijay Abraham I <kishon@ti.com>
This document explains the Generic PHY Framework along with the APIs provided,
and how-to-use.
-1. Introduction
+Introduction
+============
*PHY* is the abbreviation for physical layer. It is used to connect a device
to the physical medium e.g., the USB controller has a PHY to provide functions
@@ -21,7 +25,8 @@ better code maintainability.
This framework will be of use only to devices that use external PHY (PHY
functionality is not embedded within the controller).
-2. Registering/Unregistering the PHY provider
+Registering/Unregistering the PHY provider
+==========================================
PHY provider refers to an entity that implements one or more PHY instances.
For the simple case where the PHY provider implements only a single instance of
@@ -30,11 +35,14 @@ of_phy_simple_xlate. If the PHY provider implements multiple instances, it
should provide its own implementation of of_xlate. of_xlate is used only for
dt boot case.
-#define of_phy_provider_register(dev, xlate) \
- __of_phy_provider_register((dev), NULL, THIS_MODULE, (xlate))
+::
+
+ #define of_phy_provider_register(dev, xlate) \
+ __of_phy_provider_register((dev), NULL, THIS_MODULE, (xlate))
-#define devm_of_phy_provider_register(dev, xlate) \
- __devm_of_phy_provider_register((dev), NULL, THIS_MODULE, (xlate))
+ #define devm_of_phy_provider_register(dev, xlate) \
+ __devm_of_phy_provider_register((dev), NULL, THIS_MODULE,
+ (xlate))
of_phy_provider_register and devm_of_phy_provider_register macros can be used to
register the phy_provider and it takes device and of_xlate as
@@ -47,28 +55,35 @@ nodes within extra levels for context and extensibility, in which case the low
level of_phy_provider_register_full() and devm_of_phy_provider_register_full()
macros can be used to override the node containing the children.
-#define of_phy_provider_register_full(dev, children, xlate) \
- __of_phy_provider_register(dev, children, THIS_MODULE, xlate)
+::
+
+ #define of_phy_provider_register_full(dev, children, xlate) \
+ __of_phy_provider_register(dev, children, THIS_MODULE, xlate)
-#define devm_of_phy_provider_register_full(dev, children, xlate) \
- __devm_of_phy_provider_register_full(dev, children, THIS_MODULE, xlate)
+ #define devm_of_phy_provider_register_full(dev, children, xlate) \
+ __devm_of_phy_provider_register_full(dev, children,
+ THIS_MODULE, xlate)
-void devm_of_phy_provider_unregister(struct device *dev,
- struct phy_provider *phy_provider);
-void of_phy_provider_unregister(struct phy_provider *phy_provider);
+ void devm_of_phy_provider_unregister(struct device *dev,
+ struct phy_provider *phy_provider);
+ void of_phy_provider_unregister(struct phy_provider *phy_provider);
devm_of_phy_provider_unregister and of_phy_provider_unregister can be used to
unregister the PHY.
-3. Creating the PHY
+Creating the PHY
+================
The PHY driver should create the PHY in order for other peripheral controllers
to make use of it. The PHY framework provides 2 APIs to create the PHY.
-struct phy *phy_create(struct device *dev, struct device_node *node,
- const struct phy_ops *ops);
-struct phy *devm_phy_create(struct device *dev, struct device_node *node,
- const struct phy_ops *ops);
+::
+
+ struct phy *phy_create(struct device *dev, struct device_node *node,
+ const struct phy_ops *ops);
+ struct phy *devm_phy_create(struct device *dev,
+ struct device_node *node,
+ const struct phy_ops *ops);
The PHY drivers can use one of the above 2 APIs to create the PHY by passing
the device pointer and phy ops.
@@ -84,12 +99,16 @@ phy_ops to get back the private data.
Before the controller can make use of the PHY, it has to get a reference to
it. This framework provides the following APIs to get a reference to the PHY.
-struct phy *phy_get(struct device *dev, const char *string);
-struct phy *phy_optional_get(struct device *dev, const char *string);
-struct phy *devm_phy_get(struct device *dev, const char *string);
-struct phy *devm_phy_optional_get(struct device *dev, const char *string);
-struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np,
- int index);
+::
+
+ struct phy *phy_get(struct device *dev, const char *string);
+ struct phy *phy_optional_get(struct device *dev, const char *string);
+ struct phy *devm_phy_get(struct device *dev, const char *string);
+ struct phy *devm_phy_optional_get(struct device *dev,
+ const char *string);
+ struct phy *devm_of_phy_get_by_index(struct device *dev,
+ struct device_node *np,
+ int index);
phy_get, phy_optional_get, devm_phy_get and devm_phy_optional_get can
be used to get the PHY. In the case of dt boot, the string arguments
@@ -111,30 +130,35 @@ the phy_init() and phy_exit() calls, and phy_power_on() and
phy_power_off() calls are all NOP when applied to a NULL phy. The NULL
phy is useful in devices for handling optional phy devices.
-5. Releasing a reference to the PHY
+Releasing a reference to the PHY
+================================
When the controller no longer needs the PHY, it has to release the reference
to the PHY it has obtained using the APIs mentioned in the above section. The
PHY framework provides 2 APIs to release a reference to the PHY.
-void phy_put(struct phy *phy);
-void devm_phy_put(struct device *dev, struct phy *phy);
+::
+
+ void phy_put(struct phy *phy);
+ void devm_phy_put(struct device *dev, struct phy *phy);
Both these APIs are used to release a reference to the PHY and devm_phy_put
destroys the devres associated with this PHY.
-6. Destroying the PHY
+Destroying the PHY
+==================
When the driver that created the PHY is unloaded, it should destroy the PHY it
-created using one of the following 2 APIs.
+created using one of the following 2 APIs::
-void phy_destroy(struct phy *phy);
-void devm_phy_destroy(struct device *dev, struct phy *phy);
+ void phy_destroy(struct phy *phy);
+ void devm_phy_destroy(struct device *dev, struct phy *phy);
Both these APIs destroy the PHY and devm_phy_destroy destroys the devres
associated with this PHY.
-7. PM Runtime
+PM Runtime
+==========
This subsystem is pm runtime enabled. So while creating the PHY,
pm_runtime_enable of the phy device created by this subsystem is called and
@@ -150,7 +174,8 @@ There are exported APIs like phy_pm_runtime_get, phy_pm_runtime_get_sync,
phy_pm_runtime_put, phy_pm_runtime_put_sync, phy_pm_runtime_allow and
phy_pm_runtime_forbid for performing PM operations.
-8. PHY Mappings
+PHY Mappings
+============
In order to get reference to a PHY without help from DeviceTree, the framework
offers lookups which can be compared to clkdev that allow clk structures to be
@@ -158,12 +183,15 @@ bound to devices. A lookup can be made be made during runtime when a handle to
the struct phy already exists.
The framework offers the following API for registering and unregistering the
-lookups.
+lookups::
-int phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id);
-void phy_remove_lookup(struct phy *phy, const char *con_id, const char *dev_id);
+ int phy_create_lookup(struct phy *phy, const char *con_id,
+ const char *dev_id);
+ void phy_remove_lookup(struct phy *phy, const char *con_id,
+ const char *dev_id);
-9. DeviceTree Binding
+DeviceTree Binding
+==================
The documentation for PHY dt binding can be found @
Documentation/devicetree/bindings/phy/phy-bindings.txt
diff --git a/Documentation/pi-futex.txt b/Documentation/pi-futex.txt
index 9a5bc8651c29..aafddbee7377 100644
--- a/Documentation/pi-futex.txt
+++ b/Documentation/pi-futex.txt
@@ -1,5 +1,6 @@
+======================
Lightweight PI-futexes
-----------------------
+======================
We are calling them lightweight for 3 reasons:
@@ -25,8 +26,8 @@ determinism and well-bound latencies. Even in the worst-case, PI will
improve the statistical distribution of locking related application
delays.
-The longer reply:
------------------
+The longer reply
+----------------
Firstly, sharing locks between multiple tasks is a common programming
technique that often cannot be replaced with lockless algorithms. As we
@@ -71,8 +72,8 @@ deterministic execution of the high-prio task: any medium-priority task
could preempt the low-prio task while it holds the shared lock and
executes the critical section, and could delay it indefinitely.
-Implementation:
----------------
+Implementation
+--------------
As mentioned before, the userspace fastpath of PI-enabled pthread
mutexes involves no kernel work at all - they behave quite similarly to
@@ -83,8 +84,8 @@ entering the kernel.
To handle the slowpath, we have added two new futex ops:
- FUTEX_LOCK_PI
- FUTEX_UNLOCK_PI
+ - FUTEX_LOCK_PI
+ - FUTEX_UNLOCK_PI
If the lock-acquire fastpath fails, [i.e. an atomic transition from 0 to
TID fails], then FUTEX_LOCK_PI is called. The kernel does all the
diff --git a/Documentation/pinctrl.txt b/Documentation/pinctrl.txt
deleted file mode 100644
index f2af35f6d6b2..000000000000
--- a/Documentation/pinctrl.txt
+++ /dev/null
@@ -1,1423 +0,0 @@
-PINCTRL (PIN CONTROL) subsystem
-This document outlines the pin control subsystem in Linux
-
-This subsystem deals with:
-
-- Enumerating and naming controllable pins
-
-- Multiplexing of pins, pads, fingers (etc) see below for details
-
-- Configuration of pins, pads, fingers (etc), such as software-controlled
- biasing and driving mode specific pins, such as pull-up/down, open drain,
- load capacitance etc.
-
-Top-level interface
-===================
-
-Definition of PIN CONTROLLER:
-
-- A pin controller is a piece of hardware, usually a set of registers, that
- can control PINs. It may be able to multiplex, bias, set load capacitance,
- set drive strength, etc. for individual pins or groups of pins.
-
-Definition of PIN:
-
-- PINS are equal to pads, fingers, balls or whatever packaging input or
- output line you want to control and these are denoted by unsigned integers
- in the range 0..maxpin. This numberspace is local to each PIN CONTROLLER, so
- there may be several such number spaces in a system. This pin space may
- be sparse - i.e. there may be gaps in the space with numbers where no
- pin exists.
-
-When a PIN CONTROLLER is instantiated, it will register a descriptor to the
-pin control framework, and this descriptor contains an array of pin descriptors
-describing the pins handled by this specific pin controller.
-
-Here is an example of a PGA (Pin Grid Array) chip seen from underneath:
-
- A B C D E F G H
-
- 8 o o o o o o o o
-
- 7 o o o o o o o o
-
- 6 o o o o o o o o
-
- 5 o o o o o o o o
-
- 4 o o o o o o o o
-
- 3 o o o o o o o o
-
- 2 o o o o o o o o
-
- 1 o o o o o o o o
-
-To register a pin controller and name all the pins on this package we can do
-this in our driver:
-
-#include <linux/pinctrl/pinctrl.h>
-
-const struct pinctrl_pin_desc foo_pins[] = {
- PINCTRL_PIN(0, "A8"),
- PINCTRL_PIN(1, "B8"),
- PINCTRL_PIN(2, "C8"),
- ...
- PINCTRL_PIN(61, "F1"),
- PINCTRL_PIN(62, "G1"),
- PINCTRL_PIN(63, "H1"),
-};
-
-static struct pinctrl_desc foo_desc = {
- .name = "foo",
- .pins = foo_pins,
- .npins = ARRAY_SIZE(foo_pins),
- .owner = THIS_MODULE,
-};
-
-int __init foo_probe(void)
-{
- int error;
-
- struct pinctrl_dev *pctl;
-
- error = pinctrl_register_and_init(&foo_desc, <PARENT>, NULL, &pctl);
- if (error)
- return error;
-
- return pinctrl_enable(pctl);
-}
-
-To enable the pinctrl subsystem and the subgroups for PINMUX and PINCONF and
-selected drivers, you need to select them from your machine's Kconfig entry,
-since these are so tightly integrated with the machines they are used on.
-See for example arch/arm/mach-u300/Kconfig for an example.
-
-Pins usually have fancier names than this. You can find these in the datasheet
-for your chip. Notice that the core pinctrl.h file provides a fancy macro
-called PINCTRL_PIN() to create the struct entries. As you can see I enumerated
-the pins from 0 in the upper left corner to 63 in the lower right corner.
-This enumeration was arbitrarily chosen, in practice you need to think
-through your numbering system so that it matches the layout of registers
-and such things in your driver, or the code may become complicated. You must
-also consider matching of offsets to the GPIO ranges that may be handled by
-the pin controller.
-
-For a padring with 467 pads, as opposed to actual pins, I used an enumeration
-like this, walking around the edge of the chip, which seems to be industry
-standard too (all these pads had names, too):
-
-
- 0 ..... 104
- 466 105
- . .
- . .
- 358 224
- 357 .... 225
-
-
-Pin groups
-==========
-
-Many controllers need to deal with groups of pins, so the pin controller
-subsystem has a mechanism for enumerating groups of pins and retrieving the
-actual enumerated pins that are part of a certain group.
-
-For example, say that we have a group of pins dealing with an SPI interface
-on { 0, 8, 16, 24 }, and a group of pins dealing with an I2C interface on pins
-on { 24, 25 }.
-
-These two groups are presented to the pin control subsystem by implementing
-some generic pinctrl_ops like this:
-
-#include <linux/pinctrl/pinctrl.h>
-
-struct foo_group {
- const char *name;
- const unsigned int *pins;
- const unsigned num_pins;
-};
-
-static const unsigned int spi0_pins[] = { 0, 8, 16, 24 };
-static const unsigned int i2c0_pins[] = { 24, 25 };
-
-static const struct foo_group foo_groups[] = {
- {
- .name = "spi0_grp",
- .pins = spi0_pins,
- .num_pins = ARRAY_SIZE(spi0_pins),
- },
- {
- .name = "i2c0_grp",
- .pins = i2c0_pins,
- .num_pins = ARRAY_SIZE(i2c0_pins),
- },
-};
-
-
-static int foo_get_groups_count(struct pinctrl_dev *pctldev)
-{
- return ARRAY_SIZE(foo_groups);
-}
-
-static const char *foo_get_group_name(struct pinctrl_dev *pctldev,
- unsigned selector)
-{
- return foo_groups[selector].name;
-}
-
-static int foo_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector,
- const unsigned **pins,
- unsigned *num_pins)
-{
- *pins = (unsigned *) foo_groups[selector].pins;
- *num_pins = foo_groups[selector].num_pins;
- return 0;
-}
-
-static struct pinctrl_ops foo_pctrl_ops = {
- .get_groups_count = foo_get_groups_count,
- .get_group_name = foo_get_group_name,
- .get_group_pins = foo_get_group_pins,
-};
-
-
-static struct pinctrl_desc foo_desc = {
- ...
- .pctlops = &foo_pctrl_ops,
-};
-
-The pin control subsystem will call the .get_groups_count() function to
-determine the total number of legal selectors, then it will call the other functions
-to retrieve the name and pins of the group. Maintaining the data structure of
-the groups is up to the driver, this is just a simple example - in practice you
-may need more entries in your group structure, for example specific register
-ranges associated with each group and so on.
-
-
-Pin configuration
-=================
-
-Pins can sometimes be software-configured in various ways, mostly related
-to their electronic properties when used as inputs or outputs. For example you
-may be able to make an output pin high impedance, or "tristate" meaning it is
-effectively disconnected. You may be able to connect an input pin to VDD or GND
-using a certain resistor value - pull up and pull down - so that the pin has a
-stable value when nothing is driving the rail it is connected to, or when it's
-unconnected.
-
-Pin configuration can be programmed by adding configuration entries into the
-mapping table; see section "Board/machine configuration" below.
-
-The format and meaning of the configuration parameter, PLATFORM_X_PULL_UP
-above, is entirely defined by the pin controller driver.
-
-The pin configuration driver implements callbacks for changing pin
-configuration in the pin controller ops like this:
-
-#include <linux/pinctrl/pinctrl.h>
-#include <linux/pinctrl/pinconf.h>
-#include "platform_x_pindefs.h"
-
-static int foo_pin_config_get(struct pinctrl_dev *pctldev,
- unsigned offset,
- unsigned long *config)
-{
- struct my_conftype conf;
-
- ... Find setting for pin @ offset ...
-
- *config = (unsigned long) conf;
-}
-
-static int foo_pin_config_set(struct pinctrl_dev *pctldev,
- unsigned offset,
- unsigned long config)
-{
- struct my_conftype *conf = (struct my_conftype *) config;
-
- switch (conf) {
- case PLATFORM_X_PULL_UP:
- ...
- }
- }
-}
-
-static int foo_pin_config_group_get (struct pinctrl_dev *pctldev,
- unsigned selector,
- unsigned long *config)
-{
- ...
-}
-
-static int foo_pin_config_group_set (struct pinctrl_dev *pctldev,
- unsigned selector,
- unsigned long config)
-{
- ...
-}
-
-static struct pinconf_ops foo_pconf_ops = {
- .pin_config_get = foo_pin_config_get,
- .pin_config_set = foo_pin_config_set,
- .pin_config_group_get = foo_pin_config_group_get,
- .pin_config_group_set = foo_pin_config_group_set,
-};
-
-/* Pin config operations are handled by some pin controller */
-static struct pinctrl_desc foo_desc = {
- ...
- .confops = &foo_pconf_ops,
-};
-
-Since some controllers have special logic for handling entire groups of pins
-they can exploit the special whole-group pin control function. The
-pin_config_group_set() callback is allowed to return the error code -EAGAIN,
-for groups it does not want to handle, or if it just wants to do some
-group-level handling and then fall through to iterate over all pins, in which
-case each individual pin will be treated by separate pin_config_set() calls as
-well.
-
-
-Interaction with the GPIO subsystem
-===================================
-
-The GPIO drivers may want to perform operations of various types on the same
-physical pins that are also registered as pin controller pins.
-
-First and foremost, the two subsystems can be used as completely orthogonal,
-see the section named "pin control requests from drivers" and
-"drivers needing both pin control and GPIOs" below for details. But in some
-situations a cross-subsystem mapping between pins and GPIOs is needed.
-
-Since the pin controller subsystem has its pinspace local to the pin controller
-we need a mapping so that the pin control subsystem can figure out which pin
-controller handles control of a certain GPIO pin. Since a single pin controller
-may be muxing several GPIO ranges (typically SoCs that have one set of pins,
-but internally several GPIO silicon blocks, each modelled as a struct
-gpio_chip) any number of GPIO ranges can be added to a pin controller instance
-like this:
-
-struct gpio_chip chip_a;
-struct gpio_chip chip_b;
-
-static struct pinctrl_gpio_range gpio_range_a = {
- .name = "chip a",
- .id = 0,
- .base = 32,
- .pin_base = 32,
- .npins = 16,
- .gc = &chip_a;
-};
-
-static struct pinctrl_gpio_range gpio_range_b = {
- .name = "chip b",
- .id = 0,
- .base = 48,
- .pin_base = 64,
- .npins = 8,
- .gc = &chip_b;
-};
-
-{
- struct pinctrl_dev *pctl;
- ...
- pinctrl_add_gpio_range(pctl, &gpio_range_a);
- pinctrl_add_gpio_range(pctl, &gpio_range_b);
-}
-
-So this complex system has one pin controller handling two different
-GPIO chips. "chip a" has 16 pins and "chip b" has 8 pins. The "chip a" and
-"chip b" have different .pin_base, which means a start pin number of the
-GPIO range.
-
-The GPIO range of "chip a" starts from the GPIO base of 32 and actual
-pin range also starts from 32. However "chip b" has different starting
-offset for the GPIO range and pin range. The GPIO range of "chip b" starts
-from GPIO number 48, while the pin range of "chip b" starts from 64.
-
-We can convert a gpio number to actual pin number using this "pin_base".
-They are mapped in the global GPIO pin space at:
-
-chip a:
- - GPIO range : [32 .. 47]
- - pin range : [32 .. 47]
-chip b:
- - GPIO range : [48 .. 55]
- - pin range : [64 .. 71]
-
-The above examples assume the mapping between the GPIOs and pins is
-linear. If the mapping is sparse or haphazard, an array of arbitrary pin
-numbers can be encoded in the range like this:
-
-static const unsigned range_pins[] = { 14, 1, 22, 17, 10, 8, 6, 2 };
-
-static struct pinctrl_gpio_range gpio_range = {
- .name = "chip",
- .id = 0,
- .base = 32,
- .pins = &range_pins,
- .npins = ARRAY_SIZE(range_pins),
- .gc = &chip;
-};
-
-In this case the pin_base property will be ignored. If the name of a pin
-group is known, the pins and npins elements of the above structure can be
-initialised using the function pinctrl_get_group_pins(), e.g. for pin
-group "foo":
-
-pinctrl_get_group_pins(pctl, "foo", &gpio_range.pins, &gpio_range.npins);
-
-When GPIO-specific functions in the pin control subsystem are called, these
-ranges will be used to look up the appropriate pin controller by inspecting
-and matching the pin to the pin ranges across all controllers. When a
-pin controller handling the matching range is found, GPIO-specific functions
-will be called on that specific pin controller.
-
-For all functionalities dealing with pin biasing, pin muxing etc, the pin
-controller subsystem will look up the corresponding pin number from the passed
-in gpio number, and use the range's internals to retrieve a pin number. After
-that, the subsystem passes it on to the pin control driver, so the driver
-will get a pin number into its handled number range. Further it is also passed
-the range ID value, so that the pin controller knows which range it should
-deal with.
-
-Calling pinctrl_add_gpio_range from pinctrl driver is DEPRECATED. Please see
-section 2.1 of Documentation/devicetree/bindings/gpio/gpio.txt on how to bind
-pinctrl and gpio drivers.
-
-
-PINMUX interfaces
-=================
-
-These calls use the pinmux_* naming prefix. No other calls should use that
-prefix.
-
-
-What is pinmuxing?
-==================
-
-PINMUX, also known as padmux, ballmux, alternate functions or mission modes
-is a way for chip vendors producing some kind of electrical packages to use
-a certain physical pin (ball, pad, finger, etc) for multiple mutually exclusive
-functions, depending on the application. By "application" in this context
-we usually mean a way of soldering or wiring the package into an electronic
-system, even though the framework makes it possible to also change the function
-at runtime.
-
-Here is an example of a PGA (Pin Grid Array) chip seen from underneath:
-
- A B C D E F G H
- +---+
- 8 | o | o o o o o o o
- | |
- 7 | o | o o o o o o o
- | |
- 6 | o | o o o o o o o
- +---+---+
- 5 | o | o | o o o o o o
- +---+---+ +---+
- 4 o o o o o o | o | o
- | |
- 3 o o o o o o | o | o
- | |
- 2 o o o o o o | o | o
- +-------+-------+-------+---+---+
- 1 | o o | o o | o o | o | o |
- +-------+-------+-------+---+---+
-
-This is not tetris. The game to think of is chess. Not all PGA/BGA packages
-are chessboard-like, big ones have "holes" in some arrangement according to
-different design patterns, but we're using this as a simple example. Of the
-pins you see some will be taken by things like a few VCC and GND to feed power
-to the chip, and quite a few will be taken by large ports like an external
-memory interface. The remaining pins will often be subject to pin multiplexing.
-
-The example 8x8 PGA package above will have pin numbers 0 through 63 assigned
-to its physical pins. It will name the pins { A1, A2, A3 ... H6, H7, H8 } using
-pinctrl_register_pins() and a suitable data set as shown earlier.
-
-In this 8x8 BGA package the pins { A8, A7, A6, A5 } can be used as an SPI port
-(these are four pins: CLK, RXD, TXD, FRM). In that case, pin B5 can be used as
-some general-purpose GPIO pin. However, in another setting, pins { A5, B5 } can
-be used as an I2C port (these are just two pins: SCL, SDA). Needless to say,
-we cannot use the SPI port and I2C port at the same time. However in the inside
-of the package the silicon performing the SPI logic can alternatively be routed
-out on pins { G4, G3, G2, G1 }.
-
-On the bottom row at { A1, B1, C1, D1, E1, F1, G1, H1 } we have something
-special - it's an external MMC bus that can be 2, 4 or 8 bits wide, and it will
-consume 2, 4 or 8 pins respectively, so either { A1, B1 } are taken or
-{ A1, B1, C1, D1 } or all of them. If we use all 8 bits, we cannot use the SPI
-port on pins { G4, G3, G2, G1 } of course.
-
-This way the silicon blocks present inside the chip can be multiplexed "muxed"
-out on different pin ranges. Often contemporary SoC (systems on chip) will
-contain several I2C, SPI, SDIO/MMC, etc silicon blocks that can be routed to
-different pins by pinmux settings.
-
-Since general-purpose I/O pins (GPIO) are typically always in shortage, it is
-common to be able to use almost any pin as a GPIO pin if it is not currently
-in use by some other I/O port.
-
-
-Pinmux conventions
-==================
-
-The purpose of the pinmux functionality in the pin controller subsystem is to
-abstract and provide pinmux settings to the devices you choose to instantiate
-in your machine configuration. It is inspired by the clk, GPIO and regulator
-subsystems, so devices will request their mux setting, but it's also possible
-to request a single pin for e.g. GPIO.
-
-Definitions:
-
-- FUNCTIONS can be switched in and out by a driver residing with the pin
- control subsystem in the drivers/pinctrl/* directory of the kernel. The
- pin control driver knows the possible functions. In the example above you can
- identify three pinmux functions, one for spi, one for i2c and one for mmc.
-
-- FUNCTIONS are assumed to be enumerable from zero in a one-dimensional array.
- In this case the array could be something like: { spi0, i2c0, mmc0 }
- for the three available functions.
-
-- FUNCTIONS have PIN GROUPS as defined on the generic level - so a certain
- function is *always* associated with a certain set of pin groups, could
- be just a single one, but could also be many. In the example above the
- function i2c is associated with the pins { A5, B5 }, enumerated as
- { 24, 25 } in the controller pin space.
-
- The Function spi is associated with pin groups { A8, A7, A6, A5 }
- and { G4, G3, G2, G1 }, which are enumerated as { 0, 8, 16, 24 } and
- { 38, 46, 54, 62 } respectively.
-
- Group names must be unique per pin controller, no two groups on the same
- controller may have the same name.
-
-- The combination of a FUNCTION and a PIN GROUP determine a certain function
- for a certain set of pins. The knowledge of the functions and pin groups
- and their machine-specific particulars are kept inside the pinmux driver,
- from the outside only the enumerators are known, and the driver core can
- request:
-
- - The name of a function with a certain selector (>= 0)
- - A list of groups associated with a certain function
- - That a certain group in that list to be activated for a certain function
-
- As already described above, pin groups are in turn self-descriptive, so
- the core will retrieve the actual pin range in a certain group from the
- driver.
-
-- FUNCTIONS and GROUPS on a certain PIN CONTROLLER are MAPPED to a certain
- device by the board file, device tree or similar machine setup configuration
- mechanism, similar to how regulators are connected to devices, usually by
- name. Defining a pin controller, function and group thus uniquely identify
- the set of pins to be used by a certain device. (If only one possible group
- of pins is available for the function, no group name need to be supplied -
- the core will simply select the first and only group available.)
-
- In the example case we can define that this particular machine shall
- use device spi0 with pinmux function fspi0 group gspi0 and i2c0 on function
- fi2c0 group gi2c0, on the primary pin controller, we get mappings
- like these:
-
- {
- {"map-spi0", spi0, pinctrl0, fspi0, gspi0},
- {"map-i2c0", i2c0, pinctrl0, fi2c0, gi2c0}
- }
-
- Every map must be assigned a state name, pin controller, device and
- function. The group is not compulsory - if it is omitted the first group
- presented by the driver as applicable for the function will be selected,
- which is useful for simple cases.
-
- It is possible to map several groups to the same combination of device,
- pin controller and function. This is for cases where a certain function on
- a certain pin controller may use different sets of pins in different
- configurations.
-
-- PINS for a certain FUNCTION using a certain PIN GROUP on a certain
- PIN CONTROLLER are provided on a first-come first-serve basis, so if some
- other device mux setting or GPIO pin request has already taken your physical
- pin, you will be denied the use of it. To get (activate) a new setting, the
- old one has to be put (deactivated) first.
-
-Sometimes the documentation and hardware registers will be oriented around
-pads (or "fingers") rather than pins - these are the soldering surfaces on the
-silicon inside the package, and may or may not match the actual number of
-pins/balls underneath the capsule. Pick some enumeration that makes sense to
-you. Define enumerators only for the pins you can control if that makes sense.
-
-Assumptions:
-
-We assume that the number of possible function maps to pin groups is limited by
-the hardware. I.e. we assume that there is no system where any function can be
-mapped to any pin, like in a phone exchange. So the available pin groups for
-a certain function will be limited to a few choices (say up to eight or so),
-not hundreds or any amount of choices. This is the characteristic we have found
-by inspecting available pinmux hardware, and a necessary assumption since we
-expect pinmux drivers to present *all* possible function vs pin group mappings
-to the subsystem.
-
-
-Pinmux drivers
-==============
-
-The pinmux core takes care of preventing conflicts on pins and calling
-the pin controller driver to execute different settings.
-
-It is the responsibility of the pinmux driver to impose further restrictions
-(say for example infer electronic limitations due to load, etc.) to determine
-whether or not the requested function can actually be allowed, and in case it
-is possible to perform the requested mux setting, poke the hardware so that
-this happens.
-
-Pinmux drivers are required to supply a few callback functions, some are
-optional. Usually the set_mux() function is implemented, writing values into
-some certain registers to activate a certain mux setting for a certain pin.
-
-A simple driver for the above example will work by setting bits 0, 1, 2, 3 or 4
-into some register named MUX to select a certain function with a certain
-group of pins would work something like this:
-
-#include <linux/pinctrl/pinctrl.h>
-#include <linux/pinctrl/pinmux.h>
-
-struct foo_group {
- const char *name;
- const unsigned int *pins;
- const unsigned num_pins;
-};
-
-static const unsigned spi0_0_pins[] = { 0, 8, 16, 24 };
-static const unsigned spi0_1_pins[] = { 38, 46, 54, 62 };
-static const unsigned i2c0_pins[] = { 24, 25 };
-static const unsigned mmc0_1_pins[] = { 56, 57 };
-static const unsigned mmc0_2_pins[] = { 58, 59 };
-static const unsigned mmc0_3_pins[] = { 60, 61, 62, 63 };
-
-static const struct foo_group foo_groups[] = {
- {
- .name = "spi0_0_grp",
- .pins = spi0_0_pins,
- .num_pins = ARRAY_SIZE(spi0_0_pins),
- },
- {
- .name = "spi0_1_grp",
- .pins = spi0_1_pins,
- .num_pins = ARRAY_SIZE(spi0_1_pins),
- },
- {
- .name = "i2c0_grp",
- .pins = i2c0_pins,
- .num_pins = ARRAY_SIZE(i2c0_pins),
- },
- {
- .name = "mmc0_1_grp",
- .pins = mmc0_1_pins,
- .num_pins = ARRAY_SIZE(mmc0_1_pins),
- },
- {
- .name = "mmc0_2_grp",
- .pins = mmc0_2_pins,
- .num_pins = ARRAY_SIZE(mmc0_2_pins),
- },
- {
- .name = "mmc0_3_grp",
- .pins = mmc0_3_pins,
- .num_pins = ARRAY_SIZE(mmc0_3_pins),
- },
-};
-
-
-static int foo_get_groups_count(struct pinctrl_dev *pctldev)
-{
- return ARRAY_SIZE(foo_groups);
-}
-
-static const char *foo_get_group_name(struct pinctrl_dev *pctldev,
- unsigned selector)
-{
- return foo_groups[selector].name;
-}
-
-static int foo_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector,
- unsigned ** const pins,
- unsigned * const num_pins)
-{
- *pins = (unsigned *) foo_groups[selector].pins;
- *num_pins = foo_groups[selector].num_pins;
- return 0;
-}
-
-static struct pinctrl_ops foo_pctrl_ops = {
- .get_groups_count = foo_get_groups_count,
- .get_group_name = foo_get_group_name,
- .get_group_pins = foo_get_group_pins,
-};
-
-struct foo_pmx_func {
- const char *name;
- const char * const *groups;
- const unsigned num_groups;
-};
-
-static const char * const spi0_groups[] = { "spi0_0_grp", "spi0_1_grp" };
-static const char * const i2c0_groups[] = { "i2c0_grp" };
-static const char * const mmc0_groups[] = { "mmc0_1_grp", "mmc0_2_grp",
- "mmc0_3_grp" };
-
-static const struct foo_pmx_func foo_functions[] = {
- {
- .name = "spi0",
- .groups = spi0_groups,
- .num_groups = ARRAY_SIZE(spi0_groups),
- },
- {
- .name = "i2c0",
- .groups = i2c0_groups,
- .num_groups = ARRAY_SIZE(i2c0_groups),
- },
- {
- .name = "mmc0",
- .groups = mmc0_groups,
- .num_groups = ARRAY_SIZE(mmc0_groups),
- },
-};
-
-static int foo_get_functions_count(struct pinctrl_dev *pctldev)
-{
- return ARRAY_SIZE(foo_functions);
-}
-
-static const char *foo_get_fname(struct pinctrl_dev *pctldev, unsigned selector)
-{
- return foo_functions[selector].name;
-}
-
-static int foo_get_groups(struct pinctrl_dev *pctldev, unsigned selector,
- const char * const **groups,
- unsigned * const num_groups)
-{
- *groups = foo_functions[selector].groups;
- *num_groups = foo_functions[selector].num_groups;
- return 0;
-}
-
-static int foo_set_mux(struct pinctrl_dev *pctldev, unsigned selector,
- unsigned group)
-{
- u8 regbit = (1 << selector + group);
-
- writeb((readb(MUX)|regbit), MUX)
- return 0;
-}
-
-static struct pinmux_ops foo_pmxops = {
- .get_functions_count = foo_get_functions_count,
- .get_function_name = foo_get_fname,
- .get_function_groups = foo_get_groups,
- .set_mux = foo_set_mux,
- .strict = true,
-};
-
-/* Pinmux operations are handled by some pin controller */
-static struct pinctrl_desc foo_desc = {
- ...
- .pctlops = &foo_pctrl_ops,
- .pmxops = &foo_pmxops,
-};
-
-In the example activating muxing 0 and 1 at the same time setting bits
-0 and 1, uses one pin in common so they would collide.
-
-The beauty of the pinmux subsystem is that since it keeps track of all
-pins and who is using them, it will already have denied an impossible
-request like that, so the driver does not need to worry about such
-things - when it gets a selector passed in, the pinmux subsystem makes
-sure no other device or GPIO assignment is already using the selected
-pins. Thus bits 0 and 1 in the control register will never be set at the
-same time.
-
-All the above functions are mandatory to implement for a pinmux driver.
-
-
-Pin control interaction with the GPIO subsystem
-===============================================
-
-Note that the following implies that the use case is to use a certain pin
-from the Linux kernel using the API in <linux/gpio.h> with gpio_request()
-and similar functions. There are cases where you may be using something
-that your datasheet calls "GPIO mode", but actually is just an electrical
-configuration for a certain device. See the section below named
-"GPIO mode pitfalls" for more details on this scenario.
-
-The public pinmux API contains two functions named pinctrl_request_gpio()
-and pinctrl_free_gpio(). These two functions shall *ONLY* be called from
-gpiolib-based drivers as part of their gpio_request() and
-gpio_free() semantics. Likewise the pinctrl_gpio_direction_[input|output]
-shall only be called from within respective gpio_direction_[input|output]
-gpiolib implementation.
-
-NOTE that platforms and individual drivers shall *NOT* request GPIO pins to be
-controlled e.g. muxed in. Instead, implement a proper gpiolib driver and have
-that driver request proper muxing and other control for its pins.
-
-The function list could become long, especially if you can convert every
-individual pin into a GPIO pin independent of any other pins, and then try
-the approach to define every pin as a function.
-
-In this case, the function array would become 64 entries for each GPIO
-setting and then the device functions.
-
-For this reason there are two functions a pin control driver can implement
-to enable only GPIO on an individual pin: .gpio_request_enable() and
-.gpio_disable_free().
-
-This function will pass in the affected GPIO range identified by the pin
-controller core, so you know which GPIO pins are being affected by the request
-operation.
-
-If your driver needs to have an indication from the framework of whether the
-GPIO pin shall be used for input or output you can implement the
-.gpio_set_direction() function. As described this shall be called from the
-gpiolib driver and the affected GPIO range, pin offset and desired direction
-will be passed along to this function.
-
-Alternatively to using these special functions, it is fully allowed to use
-named functions for each GPIO pin, the pinctrl_request_gpio() will attempt to
-obtain the function "gpioN" where "N" is the global GPIO pin number if no
-special GPIO-handler is registered.
-
-
-GPIO mode pitfalls
-==================
-
-Due to the naming conventions used by hardware engineers, where "GPIO"
-is taken to mean different things than what the kernel does, the developer
-may be confused by a datasheet talking about a pin being possible to set
-into "GPIO mode". It appears that what hardware engineers mean with
-"GPIO mode" is not necessarily the use case that is implied in the kernel
-interface <linux/gpio.h>: a pin that you grab from kernel code and then
-either listen for input or drive high/low to assert/deassert some
-external line.
-
-Rather hardware engineers think that "GPIO mode" means that you can
-software-control a few electrical properties of the pin that you would
-not be able to control if the pin was in some other mode, such as muxed in
-for a device.
-
-The GPIO portions of a pin and its relation to a certain pin controller
-configuration and muxing logic can be constructed in several ways. Here
-are two examples:
-
-(A)
- pin config
- logic regs
- | +- SPI
- Physical pins --- pad --- pinmux -+- I2C
- | +- mmc
- | +- GPIO
- pin
- multiplex
- logic regs
-
-Here some electrical properties of the pin can be configured no matter
-whether the pin is used for GPIO or not. If you multiplex a GPIO onto a
-pin, you can also drive it high/low from "GPIO" registers.
-Alternatively, the pin can be controlled by a certain peripheral, while
-still applying desired pin config properties. GPIO functionality is thus
-orthogonal to any other device using the pin.
-
-In this arrangement the registers for the GPIO portions of the pin controller,
-or the registers for the GPIO hardware module are likely to reside in a
-separate memory range only intended for GPIO driving, and the register
-range dealing with pin config and pin multiplexing get placed into a
-different memory range and a separate section of the data sheet.
-
-A flag "strict" in struct pinmux_ops is available to check and deny
-simultaneous access to the same pin from GPIO and pin multiplexing
-consumers on hardware of this type. The pinctrl driver should set this flag
-accordingly.
-
-(B)
-
- pin config
- logic regs
- | +- SPI
- Physical pins --- pad --- pinmux -+- I2C
- | | +- mmc
- | |
- GPIO pin
- multiplex
- logic regs
-
-In this arrangement, the GPIO functionality can always be enabled, such that
-e.g. a GPIO input can be used to "spy" on the SPI/I2C/MMC signal while it is
-pulsed out. It is likely possible to disrupt the traffic on the pin by doing
-wrong things on the GPIO block, as it is never really disconnected. It is
-possible that the GPIO, pin config and pin multiplex registers are placed into
-the same memory range and the same section of the data sheet, although that
-need not be the case.
-
-In some pin controllers, although the physical pins are designed in the same
-way as (B), the GPIO function still can't be enabled at the same time as the
-peripheral functions. So again the "strict" flag should be set, denying
-simultaneous activation by GPIO and other muxed in devices.
-
-From a kernel point of view, however, these are different aspects of the
-hardware and shall be put into different subsystems:
-
-- Registers (or fields within registers) that control electrical
- properties of the pin such as biasing and drive strength should be
- exposed through the pinctrl subsystem, as "pin configuration" settings.
-
-- Registers (or fields within registers) that control muxing of signals
- from various other HW blocks (e.g. I2C, MMC, or GPIO) onto pins should
- be exposed through the pinctrl subsystem, as mux functions.
-
-- Registers (or fields within registers) that control GPIO functionality
- such as setting a GPIO's output value, reading a GPIO's input value, or
- setting GPIO pin direction should be exposed through the GPIO subsystem,
- and if they also support interrupt capabilities, through the irqchip
- abstraction.
-
-Depending on the exact HW register design, some functions exposed by the
-GPIO subsystem may call into the pinctrl subsystem in order to
-co-ordinate register settings across HW modules. In particular, this may
-be needed for HW with separate GPIO and pin controller HW modules, where
-e.g. GPIO direction is determined by a register in the pin controller HW
-module rather than the GPIO HW module.
-
-Electrical properties of the pin such as biasing and drive strength
-may be placed at some pin-specific register in all cases or as part
-of the GPIO register in case (B) especially. This doesn't mean that such
-properties necessarily pertain to what the Linux kernel calls "GPIO".
-
-Example: a pin is usually muxed in to be used as a UART TX line. But during
-system sleep, we need to put this pin into "GPIO mode" and ground it.
-
-If you make a 1-to-1 map to the GPIO subsystem for this pin, you may start
-to think that you need to come up with something really complex, that the
-pin shall be used for UART TX and GPIO at the same time, that you will grab
-a pin control handle and set it to a certain state to enable UART TX to be
-muxed in, then twist it over to GPIO mode and use gpio_direction_output()
-to drive it low during sleep, then mux it over to UART TX again when you
-wake up and maybe even gpio_request/gpio_free as part of this cycle. This
-all gets very complicated.
-
-The solution is to not think that what the datasheet calls "GPIO mode"
-has to be handled by the <linux/gpio.h> interface. Instead view this as
-a certain pin config setting. Look in e.g. <linux/pinctrl/pinconf-generic.h>
-and you find this in the documentation:
-
- PIN_CONFIG_OUTPUT: this will configure the pin in output, use argument
- 1 to indicate high level, argument 0 to indicate low level.
-
-So it is perfectly possible to push a pin into "GPIO mode" and drive the
-line low as part of the usual pin control map. So for example your UART
-driver may look like this:
-
-#include <linux/pinctrl/consumer.h>
-
-struct pinctrl *pinctrl;
-struct pinctrl_state *pins_default;
-struct pinctrl_state *pins_sleep;
-
-pins_default = pinctrl_lookup_state(uap->pinctrl, PINCTRL_STATE_DEFAULT);
-pins_sleep = pinctrl_lookup_state(uap->pinctrl, PINCTRL_STATE_SLEEP);
-
-/* Normal mode */
-retval = pinctrl_select_state(pinctrl, pins_default);
-/* Sleep mode */
-retval = pinctrl_select_state(pinctrl, pins_sleep);
-
-And your machine configuration may look like this:
---------------------------------------------------
-
-static unsigned long uart_default_mode[] = {
- PIN_CONF_PACKED(PIN_CONFIG_DRIVE_PUSH_PULL, 0),
-};
-
-static unsigned long uart_sleep_mode[] = {
- PIN_CONF_PACKED(PIN_CONFIG_OUTPUT, 0),
-};
-
-static struct pinctrl_map pinmap[] __initdata = {
- PIN_MAP_MUX_GROUP("uart", PINCTRL_STATE_DEFAULT, "pinctrl-foo",
- "u0_group", "u0"),
- PIN_MAP_CONFIGS_PIN("uart", PINCTRL_STATE_DEFAULT, "pinctrl-foo",
- "UART_TX_PIN", uart_default_mode),
- PIN_MAP_MUX_GROUP("uart", PINCTRL_STATE_SLEEP, "pinctrl-foo",
- "u0_group", "gpio-mode"),
- PIN_MAP_CONFIGS_PIN("uart", PINCTRL_STATE_SLEEP, "pinctrl-foo",
- "UART_TX_PIN", uart_sleep_mode),
-};
-
-foo_init(void) {
- pinctrl_register_mappings(pinmap, ARRAY_SIZE(pinmap));
-}
-
-Here the pins we want to control are in the "u0_group" and there is some
-function called "u0" that can be enabled on this group of pins, and then
-everything is UART business as usual. But there is also some function
-named "gpio-mode" that can be mapped onto the same pins to move them into
-GPIO mode.
-
-This will give the desired effect without any bogus interaction with the
-GPIO subsystem. It is just an electrical configuration used by that device
-when going to sleep, it might imply that the pin is set into something the
-datasheet calls "GPIO mode", but that is not the point: it is still used
-by that UART device to control the pins that pertain to that very UART
-driver, putting them into modes needed by the UART. GPIO in the Linux
-kernel sense are just some 1-bit line, and is a different use case.
-
-How the registers are poked to attain the push or pull, and output low
-configuration and the muxing of the "u0" or "gpio-mode" group onto these
-pins is a question for the driver.
-
-Some datasheets will be more helpful and refer to the "GPIO mode" as
-"low power mode" rather than anything to do with GPIO. This often means
-the same thing electrically speaking, but in this latter case the
-software engineers will usually quickly identify that this is some
-specific muxing or configuration rather than anything related to the GPIO
-API.
-
-
-Board/machine configuration
-==================================
-
-Boards and machines define how a certain complete running system is put
-together, including how GPIOs and devices are muxed, how regulators are
-constrained and how the clock tree looks. Of course pinmux settings are also
-part of this.
-
-A pin controller configuration for a machine looks pretty much like a simple
-regulator configuration, so for the example array above we want to enable i2c
-and spi on the second function mapping:
-
-#include <linux/pinctrl/machine.h>
-
-static const struct pinctrl_map mapping[] __initconst = {
- {
- .dev_name = "foo-spi.0",
- .name = PINCTRL_STATE_DEFAULT,
- .type = PIN_MAP_TYPE_MUX_GROUP,
- .ctrl_dev_name = "pinctrl-foo",
- .data.mux.function = "spi0",
- },
- {
- .dev_name = "foo-i2c.0",
- .name = PINCTRL_STATE_DEFAULT,
- .type = PIN_MAP_TYPE_MUX_GROUP,
- .ctrl_dev_name = "pinctrl-foo",
- .data.mux.function = "i2c0",
- },
- {
- .dev_name = "foo-mmc.0",
- .name = PINCTRL_STATE_DEFAULT,
- .type = PIN_MAP_TYPE_MUX_GROUP,
- .ctrl_dev_name = "pinctrl-foo",
- .data.mux.function = "mmc0",
- },
-};
-
-The dev_name here matches to the unique device name that can be used to look
-up the device struct (just like with clockdev or regulators). The function name
-must match a function provided by the pinmux driver handling this pin range.
-
-As you can see we may have several pin controllers on the system and thus
-we need to specify which one of them contains the functions we wish to map.
-
-You register this pinmux mapping to the pinmux subsystem by simply:
-
- ret = pinctrl_register_mappings(mapping, ARRAY_SIZE(mapping));
-
-Since the above construct is pretty common there is a helper macro to make
-it even more compact which assumes you want to use pinctrl-foo and position
-0 for mapping, for example:
-
-static struct pinctrl_map mapping[] __initdata = {
- PIN_MAP_MUX_GROUP("foo-i2c.o", PINCTRL_STATE_DEFAULT, "pinctrl-foo", NULL, "i2c0"),
-};
-
-The mapping table may also contain pin configuration entries. It's common for
-each pin/group to have a number of configuration entries that affect it, so
-the table entries for configuration reference an array of config parameters
-and values. An example using the convenience macros is shown below:
-
-static unsigned long i2c_grp_configs[] = {
- FOO_PIN_DRIVEN,
- FOO_PIN_PULLUP,
-};
-
-static unsigned long i2c_pin_configs[] = {
- FOO_OPEN_COLLECTOR,
- FOO_SLEW_RATE_SLOW,
-};
-
-static struct pinctrl_map mapping[] __initdata = {
- PIN_MAP_MUX_GROUP("foo-i2c.0", PINCTRL_STATE_DEFAULT, "pinctrl-foo", "i2c0", "i2c0"),
- PIN_MAP_CONFIGS_GROUP("foo-i2c.0", PINCTRL_STATE_DEFAULT, "pinctrl-foo", "i2c0", i2c_grp_configs),
- PIN_MAP_CONFIGS_PIN("foo-i2c.0", PINCTRL_STATE_DEFAULT, "pinctrl-foo", "i2c0scl", i2c_pin_configs),
- PIN_MAP_CONFIGS_PIN("foo-i2c.0", PINCTRL_STATE_DEFAULT, "pinctrl-foo", "i2c0sda", i2c_pin_configs),
-};
-
-Finally, some devices expect the mapping table to contain certain specific
-named states. When running on hardware that doesn't need any pin controller
-configuration, the mapping table must still contain those named states, in
-order to explicitly indicate that the states were provided and intended to
-be empty. Table entry macro PIN_MAP_DUMMY_STATE serves the purpose of defining
-a named state without causing any pin controller to be programmed:
-
-static struct pinctrl_map mapping[] __initdata = {
- PIN_MAP_DUMMY_STATE("foo-i2c.0", PINCTRL_STATE_DEFAULT),
-};
-
-
-Complex mappings
-================
-
-As it is possible to map a function to different groups of pins an optional
-.group can be specified like this:
-
-...
-{
- .dev_name = "foo-spi.0",
- .name = "spi0-pos-A",
- .type = PIN_MAP_TYPE_MUX_GROUP,
- .ctrl_dev_name = "pinctrl-foo",
- .function = "spi0",
- .group = "spi0_0_grp",
-},
-{
- .dev_name = "foo-spi.0",
- .name = "spi0-pos-B",
- .type = PIN_MAP_TYPE_MUX_GROUP,
- .ctrl_dev_name = "pinctrl-foo",
- .function = "spi0",
- .group = "spi0_1_grp",
-},
-...
-
-This example mapping is used to switch between two positions for spi0 at
-runtime, as described further below under the heading "Runtime pinmuxing".
-
-Further it is possible for one named state to affect the muxing of several
-groups of pins, say for example in the mmc0 example above, where you can
-additively expand the mmc0 bus from 2 to 4 to 8 pins. If we want to use all
-three groups for a total of 2+2+4 = 8 pins (for an 8-bit MMC bus as is the
-case), we define a mapping like this:
-
-...
-{
- .dev_name = "foo-mmc.0",
- .name = "2bit"
- .type = PIN_MAP_TYPE_MUX_GROUP,
- .ctrl_dev_name = "pinctrl-foo",
- .function = "mmc0",
- .group = "mmc0_1_grp",
-},
-{
- .dev_name = "foo-mmc.0",
- .name = "4bit"
- .type = PIN_MAP_TYPE_MUX_GROUP,
- .ctrl_dev_name = "pinctrl-foo",
- .function = "mmc0",
- .group = "mmc0_1_grp",
-},
-{
- .dev_name = "foo-mmc.0",
- .name = "4bit"
- .type = PIN_MAP_TYPE_MUX_GROUP,
- .ctrl_dev_name = "pinctrl-foo",
- .function = "mmc0",
- .group = "mmc0_2_grp",
-},
-{
- .dev_name = "foo-mmc.0",
- .name = "8bit"
- .type = PIN_MAP_TYPE_MUX_GROUP,
- .ctrl_dev_name = "pinctrl-foo",
- .function = "mmc0",
- .group = "mmc0_1_grp",
-},
-{
- .dev_name = "foo-mmc.0",
- .name = "8bit"
- .type = PIN_MAP_TYPE_MUX_GROUP,
- .ctrl_dev_name = "pinctrl-foo",
- .function = "mmc0",
- .group = "mmc0_2_grp",
-},
-{
- .dev_name = "foo-mmc.0",
- .name = "8bit"
- .type = PIN_MAP_TYPE_MUX_GROUP,
- .ctrl_dev_name = "pinctrl-foo",
- .function = "mmc0",
- .group = "mmc0_3_grp",
-},
-...
-
-The result of grabbing this mapping from the device with something like
-this (see next paragraph):
-
- p = devm_pinctrl_get(dev);
- s = pinctrl_lookup_state(p, "8bit");
- ret = pinctrl_select_state(p, s);
-
-or more simply:
-
- p = devm_pinctrl_get_select(dev, "8bit");
-
-Will be that you activate all the three bottom records in the mapping at
-once. Since they share the same name, pin controller device, function and
-device, and since we allow multiple groups to match to a single device, they
-all get selected, and they all get enabled and disable simultaneously by the
-pinmux core.
-
-
-Pin control requests from drivers
-=================================
-
-When a device driver is about to probe the device core will automatically
-attempt to issue pinctrl_get_select_default() on these devices.
-This way driver writers do not need to add any of the boilerplate code
-of the type found below. However when doing fine-grained state selection
-and not using the "default" state, you may have to do some device driver
-handling of the pinctrl handles and states.
-
-So if you just want to put the pins for a certain device into the default
-state and be done with it, there is nothing you need to do besides
-providing the proper mapping table. The device core will take care of
-the rest.
-
-Generally it is discouraged to let individual drivers get and enable pin
-control. So if possible, handle the pin control in platform code or some other
-place where you have access to all the affected struct device * pointers. In
-some cases where a driver needs to e.g. switch between different mux mappings
-at runtime this is not possible.
-
-A typical case is if a driver needs to switch bias of pins from normal
-operation and going to sleep, moving from the PINCTRL_STATE_DEFAULT to
-PINCTRL_STATE_SLEEP at runtime, re-biasing or even re-muxing pins to save
-current in sleep mode.
-
-A driver may request a certain control state to be activated, usually just the
-default state like this:
-
-#include <linux/pinctrl/consumer.h>
-
-struct foo_state {
- struct pinctrl *p;
- struct pinctrl_state *s;
- ...
-};
-
-foo_probe()
-{
- /* Allocate a state holder named "foo" etc */
- struct foo_state *foo = ...;
-
- foo->p = devm_pinctrl_get(&device);
- if (IS_ERR(foo->p)) {
- /* FIXME: clean up "foo" here */
- return PTR_ERR(foo->p);
- }
-
- foo->s = pinctrl_lookup_state(foo->p, PINCTRL_STATE_DEFAULT);
- if (IS_ERR(foo->s)) {
- /* FIXME: clean up "foo" here */
- return PTR_ERR(s);
- }
-
- ret = pinctrl_select_state(foo->s);
- if (ret < 0) {
- /* FIXME: clean up "foo" here */
- return ret;
- }
-}
-
-This get/lookup/select/put sequence can just as well be handled by bus drivers
-if you don't want each and every driver to handle it and you know the
-arrangement on your bus.
-
-The semantics of the pinctrl APIs are:
-
-- pinctrl_get() is called in process context to obtain a handle to all pinctrl
- information for a given client device. It will allocate a struct from the
- kernel memory to hold the pinmux state. All mapping table parsing or similar
- slow operations take place within this API.
-
-- devm_pinctrl_get() is a variant of pinctrl_get() that causes pinctrl_put()
- to be called automatically on the retrieved pointer when the associated
- device is removed. It is recommended to use this function over plain
- pinctrl_get().
-
-- pinctrl_lookup_state() is called in process context to obtain a handle to a
- specific state for a client device. This operation may be slow, too.
-
-- pinctrl_select_state() programs pin controller hardware according to the
- definition of the state as given by the mapping table. In theory, this is a
- fast-path operation, since it only involved blasting some register settings
- into hardware. However, note that some pin controllers may have their
- registers on a slow/IRQ-based bus, so client devices should not assume they
- can call pinctrl_select_state() from non-blocking contexts.
-
-- pinctrl_put() frees all information associated with a pinctrl handle.
-
-- devm_pinctrl_put() is a variant of pinctrl_put() that may be used to
- explicitly destroy a pinctrl object returned by devm_pinctrl_get().
- However, use of this function will be rare, due to the automatic cleanup
- that will occur even without calling it.
-
- pinctrl_get() must be paired with a plain pinctrl_put().
- pinctrl_get() may not be paired with devm_pinctrl_put().
- devm_pinctrl_get() can optionally be paired with devm_pinctrl_put().
- devm_pinctrl_get() may not be paired with plain pinctrl_put().
-
-Usually the pin control core handled the get/put pair and call out to the
-device drivers bookkeeping operations, like checking available functions and
-the associated pins, whereas select_state pass on to the pin controller
-driver which takes care of activating and/or deactivating the mux setting by
-quickly poking some registers.
-
-The pins are allocated for your device when you issue the devm_pinctrl_get()
-call, after this you should be able to see this in the debugfs listing of all
-pins.
-
-NOTE: the pinctrl system will return -EPROBE_DEFER if it cannot find the
-requested pinctrl handles, for example if the pinctrl driver has not yet
-registered. Thus make sure that the error path in your driver gracefully
-cleans up and is ready to retry the probing later in the startup process.
-
-
-Drivers needing both pin control and GPIOs
-==========================================
-
-Again, it is discouraged to let drivers lookup and select pin control states
-themselves, but again sometimes this is unavoidable.
-
-So say that your driver is fetching its resources like this:
-
-#include <linux/pinctrl/consumer.h>
-#include <linux/gpio.h>
-
-struct pinctrl *pinctrl;
-int gpio;
-
-pinctrl = devm_pinctrl_get_select_default(&dev);
-gpio = devm_gpio_request(&dev, 14, "foo");
-
-Here we first request a certain pin state and then request GPIO 14 to be
-used. If you're using the subsystems orthogonally like this, you should
-nominally always get your pinctrl handle and select the desired pinctrl
-state BEFORE requesting the GPIO. This is a semantic convention to avoid
-situations that can be electrically unpleasant, you will certainly want to
-mux in and bias pins in a certain way before the GPIO subsystems starts to
-deal with them.
-
-The above can be hidden: using the device core, the pinctrl core may be
-setting up the config and muxing for the pins right before the device is
-probing, nevertheless orthogonal to the GPIO subsystem.
-
-But there are also situations where it makes sense for the GPIO subsystem
-to communicate directly with the pinctrl subsystem, using the latter as a
-back-end. This is when the GPIO driver may call out to the functions
-described in the section "Pin control interaction with the GPIO subsystem"
-above. This only involves per-pin multiplexing, and will be completely
-hidden behind the gpio_*() function namespace. In this case, the driver
-need not interact with the pin control subsystem at all.
-
-If a pin control driver and a GPIO driver is dealing with the same pins
-and the use cases involve multiplexing, you MUST implement the pin controller
-as a back-end for the GPIO driver like this, unless your hardware design
-is such that the GPIO controller can override the pin controller's
-multiplexing state through hardware without the need to interact with the
-pin control system.
-
-
-System pin control hogging
-==========================
-
-Pin control map entries can be hogged by the core when the pin controller
-is registered. This means that the core will attempt to call pinctrl_get(),
-lookup_state() and select_state() on it immediately after the pin control
-device has been registered.
-
-This occurs for mapping table entries where the client device name is equal
-to the pin controller device name, and the state name is PINCTRL_STATE_DEFAULT.
-
-{
- .dev_name = "pinctrl-foo",
- .name = PINCTRL_STATE_DEFAULT,
- .type = PIN_MAP_TYPE_MUX_GROUP,
- .ctrl_dev_name = "pinctrl-foo",
- .function = "power_func",
-},
-
-Since it may be common to request the core to hog a few always-applicable
-mux settings on the primary pin controller, there is a convenience macro for
-this:
-
-PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-foo", NULL /* group */, "power_func")
-
-This gives the exact same result as the above construction.
-
-
-Runtime pinmuxing
-=================
-
-It is possible to mux a certain function in and out at runtime, say to move
-an SPI port from one set of pins to another set of pins. Say for example for
-spi0 in the example above, we expose two different groups of pins for the same
-function, but with different named in the mapping as described under
-"Advanced mapping" above. So that for an SPI device, we have two states named
-"pos-A" and "pos-B".
-
-This snippet first initializes a state object for both groups (in foo_probe()),
-then muxes the function in the pins defined by group A, and finally muxes it in
-on the pins defined by group B:
-
-#include <linux/pinctrl/consumer.h>
-
-struct pinctrl *p;
-struct pinctrl_state *s1, *s2;
-
-foo_probe()
-{
- /* Setup */
- p = devm_pinctrl_get(&device);
- if (IS_ERR(p))
- ...
-
- s1 = pinctrl_lookup_state(foo->p, "pos-A");
- if (IS_ERR(s1))
- ...
-
- s2 = pinctrl_lookup_state(foo->p, "pos-B");
- if (IS_ERR(s2))
- ...
-}
-
-foo_switch()
-{
- /* Enable on position A */
- ret = pinctrl_select_state(s1);
- if (ret < 0)
- ...
-
- ...
-
- /* Enable on position B */
- ret = pinctrl_select_state(s2);
- if (ret < 0)
- ...
-
- ...
-}
-
-The above has to be done from process context. The reservation of the pins
-will be done when the state is activated, so in effect one specific pin
-can be used by different functions at different times on a running system.
diff --git a/Documentation/pnp.txt b/Documentation/pnp.txt
index 763e4659bf18..bab2d10631f0 100644
--- a/Documentation/pnp.txt
+++ b/Documentation/pnp.txt
@@ -1,98 +1,118 @@
+=================================
Linux Plug and Play Documentation
-by Adam Belay <ambx1@neo.rr.com>
-last updated: Oct. 16, 2002
----------------------------------------------------------------------------------------
+=================================
+:Author: Adam Belay <ambx1@neo.rr.com>
+:Last updated: Oct. 16, 2002
Overview
--------
- Plug and Play provides a means of detecting and setting resources for legacy or
+
+Plug and Play provides a means of detecting and setting resources for legacy or
otherwise unconfigurable devices. The Linux Plug and Play Layer provides these
services to compatible drivers.
-
The User Interface
------------------
- The Linux Plug and Play user interface provides a means to activate PnP devices
+
+The Linux Plug and Play user interface provides a means to activate PnP devices
for legacy and user level drivers that do not support Linux Plug and Play. The
user interface is integrated into sysfs.
In addition to the standard sysfs file the following are created in each
device's directory:
-id - displays a list of support EISA IDs
-options - displays possible resource configurations
-resources - displays currently allocated resources and allows resource changes
+- id - displays a list of support EISA IDs
+- options - displays possible resource configurations
+- resources - displays currently allocated resources and allows resource changes
--activating a device
+activating a device
+^^^^^^^^^^^^^^^^^^^
-#echo "auto" > resources
+::
+
+ # echo "auto" > resources
this will invoke the automatic resource config system to activate the device
--manually activating a device
+manually activating a device
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+::
+
+ # echo "manual <depnum> <mode>" > resources
-#echo "manual <depnum> <mode>" > resources
-<depnum> - the configuration number
-<mode> - static or dynamic
- static = for next boot
- dynamic = now
+ <depnum> - the configuration number
+ <mode> - static or dynamic
+ static = for next boot
+ dynamic = now
--disabling a device
+disabling a device
+^^^^^^^^^^^^^^^^^^
-#echo "disable" > resources
+::
+
+ # echo "disable" > resources
EXAMPLE:
Suppose you need to activate the floppy disk controller.
-1.) change to the proper directory, in my case it is
-/driver/bus/pnp/devices/00:0f
-# cd /driver/bus/pnp/devices/00:0f
-# cat name
-PC standard floppy disk controller
-
-2.) check if the device is already active
-# cat resources
-DISABLED
-
-- Notice the string "DISABLED". This means the device is not active.
-
-3.) check the device's possible configurations (optional)
-# cat options
-Dependent: 01 - Priority acceptable
- port 0x3f0-0x3f0, align 0x7, size 0x6, 16-bit address decoding
- port 0x3f7-0x3f7, align 0x0, size 0x1, 16-bit address decoding
- irq 6
- dma 2 8-bit compatible
-Dependent: 02 - Priority acceptable
- port 0x370-0x370, align 0x7, size 0x6, 16-bit address decoding
- port 0x377-0x377, align 0x0, size 0x1, 16-bit address decoding
- irq 6
- dma 2 8-bit compatible
-
-4.) now activate the device
-# echo "auto" > resources
-
-5.) finally check if the device is active
-# cat resources
-io 0x3f0-0x3f5
-io 0x3f7-0x3f7
-irq 6
-dma 2
-
-also there are a series of kernel parameters:
-pnp_reserve_irq=irq1[,irq2] ....
-pnp_reserve_dma=dma1[,dma2] ....
-pnp_reserve_io=io1,size1[,io2,size2] ....
-pnp_reserve_mem=mem1,size1[,mem2,size2] ....
+
+1. change to the proper directory, in my case it is
+ /driver/bus/pnp/devices/00:0f::
+
+ # cd /driver/bus/pnp/devices/00:0f
+ # cat name
+ PC standard floppy disk controller
+
+2. check if the device is already active::
+
+ # cat resources
+ DISABLED
+
+ - Notice the string "DISABLED". This means the device is not active.
+
+3. check the device's possible configurations (optional)::
+
+ # cat options
+ Dependent: 01 - Priority acceptable
+ port 0x3f0-0x3f0, align 0x7, size 0x6, 16-bit address decoding
+ port 0x3f7-0x3f7, align 0x0, size 0x1, 16-bit address decoding
+ irq 6
+ dma 2 8-bit compatible
+ Dependent: 02 - Priority acceptable
+ port 0x370-0x370, align 0x7, size 0x6, 16-bit address decoding
+ port 0x377-0x377, align 0x0, size 0x1, 16-bit address decoding
+ irq 6
+ dma 2 8-bit compatible
+
+4. now activate the device::
+
+ # echo "auto" > resources
+
+5. finally check if the device is active::
+
+ # cat resources
+ io 0x3f0-0x3f5
+ io 0x3f7-0x3f7
+ irq 6
+ dma 2
+
+also there are a series of kernel parameters::
+
+ pnp_reserve_irq=irq1[,irq2] ....
+ pnp_reserve_dma=dma1[,dma2] ....
+ pnp_reserve_io=io1,size1[,io2,size2] ....
+ pnp_reserve_mem=mem1,size1[,mem2,size2] ....
The Unified Plug and Play Layer
-------------------------------
- All Plug and Play drivers, protocols, and services meet at a central location
+
+All Plug and Play drivers, protocols, and services meet at a central location
called the Plug and Play Layer. This layer is responsible for the exchange of
information between PnP drivers and PnP protocols. Thus it automatically
forwards commands to the proper protocol. This makes writing PnP drivers
@@ -101,64 +121,73 @@ significantly easier.
The following functions are available from the Plug and Play Layer:
pnp_get_protocol
-- increments the number of uses by one
+ increments the number of uses by one
pnp_put_protocol
-- deincrements the number of uses by one
+ deincrements the number of uses by one
pnp_register_protocol
-- use this to register a new PnP protocol
+ use this to register a new PnP protocol
pnp_unregister_protocol
-- use this function to remove a PnP protocol from the Plug and Play Layer
+ use this function to remove a PnP protocol from the Plug and Play Layer
pnp_register_driver
-- adds a PnP driver to the Plug and Play Layer
-- this includes driver model integration
-- returns zero for success or a negative error number for failure; count
+ adds a PnP driver to the Plug and Play Layer
+
+ this includes driver model integration
+ returns zero for success or a negative error number for failure; count
calls to the .add() method if you need to know how many devices bind to
the driver
pnp_unregister_driver
-- removes a PnP driver from the Plug and Play Layer
+ removes a PnP driver from the Plug and Play Layer
Plug and Play Protocols
-----------------------
- This section contains information for PnP protocol developers.
+
+This section contains information for PnP protocol developers.
The following Protocols are currently available in the computing world:
-- PNPBIOS: used for system devices such as serial and parallel ports.
-- ISAPNP: provides PnP support for the ISA bus
-- ACPI: among its many uses, ACPI provides information about system level
-devices.
+
+- PNPBIOS:
+ used for system devices such as serial and parallel ports.
+- ISAPNP:
+ provides PnP support for the ISA bus
+- ACPI:
+ among its many uses, ACPI provides information about system level
+ devices.
+
It is meant to replace the PNPBIOS. It is not currently supported by Linux
Plug and Play but it is planned to be in the near future.
Requirements for a Linux PnP protocol:
-1.) the protocol must use EISA IDs
-2.) the protocol must inform the PnP Layer of a device's current configuration
+1. the protocol must use EISA IDs
+2. the protocol must inform the PnP Layer of a device's current configuration
+
- the ability to set resources is optional but preferred.
The following are PnP protocol related functions:
pnp_add_device
-- use this function to add a PnP device to the PnP layer
-- only call this function when all wanted values are set in the pnp_dev
-structure
+ use this function to add a PnP device to the PnP layer
+
+ only call this function when all wanted values are set in the pnp_dev
+ structure
pnp_init_device
-- call this to initialize the PnP structure
+ call this to initialize the PnP structure
pnp_remove_device
-- call this to remove a device from the Plug and Play Layer.
-- it will fail if the device is still in use.
-- automatically will free mem used by the device and related structures
+ call this to remove a device from the Plug and Play Layer.
+ it will fail if the device is still in use.
+ automatically will free mem used by the device and related structures
pnp_add_id
-- adds an EISA ID to the list of supported IDs for the specified device
+ adds an EISA ID to the list of supported IDs for the specified device
For more information consult the source of a protocol such as
/drivers/pnp/pnpbios/core.c.
@@ -167,85 +196,97 @@ For more information consult the source of a protocol such as
Linux Plug and Play Drivers
---------------------------
- This section contains information for Linux PnP driver developers.
+
+This section contains information for Linux PnP driver developers.
The New Way
-...........
-1.) first make a list of supported EISA IDS
-ex:
-static const struct pnp_id pnp_dev_table[] = {
- /* Standard LPT Printer Port */
- {.id = "PNP0400", .driver_data = 0},
- /* ECP Printer Port */
- {.id = "PNP0401", .driver_data = 0},
- {.id = ""}
-};
-
-Please note that the character 'X' can be used as a wild card in the function
-portion (last four characters).
-ex:
+^^^^^^^^^^^
+
+1. first make a list of supported EISA IDS
+
+ ex::
+
+ static const struct pnp_id pnp_dev_table[] = {
+ /* Standard LPT Printer Port */
+ {.id = "PNP0400", .driver_data = 0},
+ /* ECP Printer Port */
+ {.id = "PNP0401", .driver_data = 0},
+ {.id = ""}
+ };
+
+ Please note that the character 'X' can be used as a wild card in the function
+ portion (last four characters).
+
+ ex::
+
/* Unknown PnP modems */
{ "PNPCXXX", UNKNOWN_DEV },
-Supported PnP card IDs can optionally be defined.
-ex:
-static const struct pnp_id pnp_card_table[] = {
- { "ANYDEVS", 0 },
- { "", 0 }
-};
-
-2.) Optionally define probe and remove functions. It may make sense not to
-define these functions if the driver already has a reliable method of detecting
-the resources, such as the parport_pc driver.
-ex:
-static int
-serial_pnp_probe(struct pnp_dev * dev, const struct pnp_id *card_id, const
- struct pnp_id *dev_id)
-{
-. . .
-
-ex:
-static void serial_pnp_remove(struct pnp_dev * dev)
-{
-. . .
-
-consult /drivers/serial/8250_pnp.c for more information.
-
-3.) create a driver structure
-ex:
-
-static struct pnp_driver serial_pnp_driver = {
- .name = "serial",
- .card_id_table = pnp_card_table,
- .id_table = pnp_dev_table,
- .probe = serial_pnp_probe,
- .remove = serial_pnp_remove,
-};
-
-* name and id_table cannot be NULL.
-
-4.) register the driver
-ex:
-
-static int __init serial8250_pnp_init(void)
-{
- return pnp_register_driver(&serial_pnp_driver);
-}
+ Supported PnP card IDs can optionally be defined.
+ ex::
+
+ static const struct pnp_id pnp_card_table[] = {
+ { "ANYDEVS", 0 },
+ { "", 0 }
+ };
+
+2. Optionally define probe and remove functions. It may make sense not to
+ define these functions if the driver already has a reliable method of detecting
+ the resources, such as the parport_pc driver.
+
+ ex::
+
+ static int
+ serial_pnp_probe(struct pnp_dev * dev, const struct pnp_id *card_id, const
+ struct pnp_id *dev_id)
+ {
+ . . .
+
+ ex::
+
+ static void serial_pnp_remove(struct pnp_dev * dev)
+ {
+ . . .
+
+ consult /drivers/serial/8250_pnp.c for more information.
+
+3. create a driver structure
+
+ ex::
+
+ static struct pnp_driver serial_pnp_driver = {
+ .name = "serial",
+ .card_id_table = pnp_card_table,
+ .id_table = pnp_dev_table,
+ .probe = serial_pnp_probe,
+ .remove = serial_pnp_remove,
+ };
+
+ * name and id_table cannot be NULL.
+
+4. register the driver
+
+ ex::
+
+ static int __init serial8250_pnp_init(void)
+ {
+ return pnp_register_driver(&serial_pnp_driver);
+ }
The Old Way
-...........
+^^^^^^^^^^^
A series of compatibility functions have been created to make it easy to convert
ISAPNP drivers. They should serve as a temporary solution only.
-They are as follows:
+They are as follows::
-struct pnp_card *pnp_find_card(unsigned short vendor,
- unsigned short device,
- struct pnp_card *from)
+ struct pnp_card *pnp_find_card(unsigned short vendor,
+ unsigned short device,
+ struct pnp_card *from)
-struct pnp_dev *pnp_find_dev(struct pnp_card *card,
- unsigned short vendor,
- unsigned short function,
- struct pnp_dev *from)
+ struct pnp_dev *pnp_find_dev(struct pnp_card *card,
+ unsigned short vendor,
+ unsigned short function,
+ struct pnp_dev *from)
diff --git a/Documentation/power/power_supply_class.txt b/Documentation/power/power_supply_class.txt
index 0c72588bd967..300d37896e51 100644
--- a/Documentation/power/power_supply_class.txt
+++ b/Documentation/power/power_supply_class.txt
@@ -115,28 +115,33 @@ of charge when battery became full/empty". It also could mean "value of
charge when battery considered full/empty at given conditions (temperature,
age)". I.e. these attributes represents real thresholds, not design values.
+ENERGY_FULL, ENERGY_EMPTY - same as above but for energy.
+
CHARGE_COUNTER - the current charge counter (in µAh). This could easily
be negative; there is no empty or full value. It is only useful for
relative, time-based measurements.
+PRECHARGE_CURRENT - the maximum charge current during precharge phase
+of charge cycle (typically 20% of battery capacity).
+CHARGE_TERM_CURRENT - Charge termination current. The charge cycle
+terminates when battery voltage is above recharge threshold, and charge
+current is below this setting (typically 10% of battery capacity).
+
CONSTANT_CHARGE_CURRENT - constant charge current programmed by charger.
CONSTANT_CHARGE_CURRENT_MAX - maximum charge current supported by the
power supply object.
-INPUT_CURRENT_LIMIT - input current limit programmed by charger. Indicates
-the current drawn from a charging source.
-CHARGE_TERM_CURRENT - Charge termination current used to detect the end of charge
-condition.
-
-CALIBRATE - battery or coulomb counter calibration status
CONSTANT_CHARGE_VOLTAGE - constant charge voltage programmed by charger.
CONSTANT_CHARGE_VOLTAGE_MAX - maximum charge voltage supported by the
power supply object.
+INPUT_CURRENT_LIMIT - input current limit programmed by charger. Indicates
+the current drawn from a charging source.
+
CHARGE_CONTROL_LIMIT - current charge control limit setting
CHARGE_CONTROL_LIMIT_MAX - maximum charge control limit setting
-ENERGY_FULL, ENERGY_EMPTY - same as above but for energy.
+CALIBRATE - battery or coulomb counter calibration status
CAPACITY - capacity in percents.
CAPACITY_ALERT_MIN - minimum capacity alert value in percents.
@@ -174,6 +179,18 @@ issued by external power supply will notify supplicants via
external_power_changed callback.
+Devicetree battery characteristics
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Drivers should call power_supply_get_battery_info() to obtain battery
+characteristics from a devicetree battery node, defined in
+Documentation/devicetree/bindings/power/supply/battery.txt. This is
+implemented in drivers/power/supply/bq27xxx_battery.c.
+
+Properties in struct power_supply_battery_info and their counterparts in the
+battery node have names corresponding to elements in enum power_supply_property,
+for naming consistency between sysfs attributes and battery node properties.
+
+
QA
~~
Q: Where is POWER_SUPPLY_PROP_XYZ attribute?
diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt
index ee69d7532172..625549d4c74a 100644
--- a/Documentation/power/runtime_pm.txt
+++ b/Documentation/power/runtime_pm.txt
@@ -105,9 +105,9 @@ knows what to do to handle the device).
In particular, if the driver requires remote wakeup capability (i.e. hardware
mechanism allowing the device to request a change of its power state, such as
-PCI PME) for proper functioning and device_run_wake() returns 'false' for the
+PCI PME) for proper functioning and device_can_wakeup() returns 'false' for the
device, then ->runtime_suspend() should return -EBUSY. On the other hand, if
-device_run_wake() returns 'true' for the device and the device is put into a
+device_can_wakeup() returns 'true' for the device and the device is put into a
low-power state during the execution of the suspend callback, it is expected
that remote wakeup will be enabled for the device. Generally, remote wakeup
should be enabled for all input devices put into low-power states at run time.
@@ -253,9 +253,6 @@ defined in include/linux/pm.h:
being executed for that device and it is not practical to wait for the
suspend to complete; means "start a resume as soon as you've suspended"
- unsigned int run_wake;
- - set if the device is capable of generating runtime wake-up events
-
enum rpm_status runtime_status;
- the runtime PM status of the device; this field's initial value is
RPM_SUSPENDED, which means that each device is initially regarded by the
@@ -438,7 +435,8 @@ drivers/base/power/runtime.c and include/linux/pm_runtime.h:
PM status to 'suspended' and update its parent's counter of 'active'
children as appropriate (it is only valid to use this function if
'power.runtime_error' is set or 'power.disable_depth' is greater than
- zero)
+ zero); it will fail and return an error code if the device has a child
+ which is active and the 'power.ignore_children' flag is unset
bool pm_runtime_active(struct device *dev);
- return true if the device's runtime PM status is 'active' or its
diff --git a/Documentation/power/states.txt b/Documentation/power/states.txt
deleted file mode 100644
index bc4548245a24..000000000000
--- a/Documentation/power/states.txt
+++ /dev/null
@@ -1,125 +0,0 @@
-System Power Management Sleep States
-
-(C) 2014 Intel Corp., Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-
-The kernel supports up to four system sleep states generically, although three
-of them depend on the platform support code to implement the low-level details
-for each state.
-
-The states are represented by strings that can be read or written to the
-/sys/power/state file. Those strings may be "mem", "standby", "freeze" and
-"disk", where the last three always represent Power-On Suspend (if supported),
-Suspend-To-Idle and hibernation (Suspend-To-Disk), respectively.
-
-The meaning of the "mem" string is controlled by the /sys/power/mem_sleep file.
-It contains strings representing the available modes of system suspend that may
-be triggered by writing "mem" to /sys/power/state. These modes are "s2idle"
-(Suspend-To-Idle), "shallow" (Power-On Suspend) and "deep" (Suspend-To-RAM).
-The "s2idle" mode is always available, while the other ones are only available
-if supported by the platform (if not supported, the strings representing them
-are not present in /sys/power/mem_sleep). The string representing the suspend
-mode to be used subsequently is enclosed in square brackets. Writing one of
-the other strings present in /sys/power/mem_sleep to it causes the suspend mode
-to be used subsequently to change to the one represented by that string.
-
-Consequently, there are two ways to cause the system to go into the
-Suspend-To-Idle sleep state. The first one is to write "freeze" directly to
-/sys/power/state. The second one is to write "s2idle" to /sys/power/mem_sleep
-and then to write "mem" to /sys/power/state. Similarly, there are two ways
-to cause the system to go into the Power-On Suspend sleep state (the strings to
-write to the control files in that case are "standby" or "shallow" and "mem",
-respectively) if that state is supported by the platform. In turn, there is
-only one way to cause the system to go into the Suspend-To-RAM state (write
-"deep" into /sys/power/mem_sleep and "mem" into /sys/power/state).
-
-The default suspend mode (ie. the one to be used without writing anything into
-/sys/power/mem_sleep) is either "deep" (if Suspend-To-RAM is supported) or
-"s2idle", but it can be overridden by the value of the "mem_sleep_default"
-parameter in the kernel command line.
-
-The properties of all of the sleep states are described below.
-
-
-State: Suspend-To-Idle
-ACPI state: S0
-Label: "s2idle" ("freeze")
-
-This state is a generic, pure software, light-weight, system sleep state.
-It allows more energy to be saved relative to runtime idle by freezing user
-space and putting all I/O devices into low-power states (possibly
-lower-power than available at run time), such that the processors can
-spend more time in their idle states.
-
-This state can be used for platforms without Power-On Suspend/Suspend-to-RAM
-support, or it can be used in addition to Suspend-to-RAM to provide reduced
-resume latency. It is always supported.
-
-
-State: Standby / Power-On Suspend
-ACPI State: S1
-Label: "shallow" ("standby")
-
-This state, if supported, offers moderate, though real, power savings, while
-providing a relatively low-latency transition back to a working system. No
-operating state is lost (the CPU retains power), so the system easily starts up
-again where it left off.
-
-In addition to freezing user space and putting all I/O devices into low-power
-states, which is done for Suspend-To-Idle too, nonboot CPUs are taken offline
-and all low-level system functions are suspended during transitions into this
-state. For this reason, it should allow more energy to be saved relative to
-Suspend-To-Idle, but the resume latency will generally be greater than for that
-state.
-
-
-State: Suspend-to-RAM
-ACPI State: S3
-Label: "deep"
-
-This state, if supported, offers significant power savings as everything in the
-system is put into a low-power state, except for memory, which should be placed
-into the self-refresh mode to retain its contents. All of the steps carried out
-when entering Power-On Suspend are also carried out during transitions to STR.
-Additional operations may take place depending on the platform capabilities. In
-particular, on ACPI systems the kernel passes control to the BIOS (platform
-firmware) as the last step during STR transitions and that usually results in
-powering down some more low-level components that aren't directly controlled by
-the kernel.
-
-System and device state is saved and kept in memory. All devices are suspended
-and put into low-power states. In many cases, all peripheral buses lose power
-when entering STR, so devices must be able to handle the transition back to the
-"on" state.
-
-For at least ACPI, STR requires some minimal boot-strapping code to resume the
-system from it. This may be the case on other platforms too.
-
-
-State: Suspend-to-disk
-ACPI State: S4
-Label: "disk"
-
-This state offers the greatest power savings, and can be used even in
-the absence of low-level platform support for power management. This
-state operates similarly to Suspend-to-RAM, but includes a final step
-of writing memory contents to disk. On resume, this is read and memory
-is restored to its pre-suspend state.
-
-STD can be handled by the firmware or the kernel. If it is handled by
-the firmware, it usually requires a dedicated partition that must be
-setup via another operating system for it to use. Despite the
-inconvenience, this method requires minimal work by the kernel, since
-the firmware will also handle restoring memory contents on resume.
-
-For suspend-to-disk, a mechanism called 'swsusp' (Swap Suspend) is used
-to write memory contents to free swap space. swsusp has some restrictive
-requirements, but should work in most cases. Some, albeit outdated,
-documentation can be found in Documentation/power/swsusp.txt.
-Alternatively, userspace can do most of the actual suspend to disk work,
-see userland-swsusp.txt.
-
-Once memory state is written to disk, the system may either enter a
-low-power state (like ACPI S4), or it may simply power down. Powering
-down offers greater savings, and allows this mechanism to work on any
-system. However, entering a real low-power state allows the user to
-trigger wake up events (e.g. pressing a key or opening a laptop lid).
diff --git a/Documentation/powerpc/cxlflash.txt b/Documentation/powerpc/cxlflash.txt
index 66b4496d6619..a64bdaa0a1cf 100644
--- a/Documentation/powerpc/cxlflash.txt
+++ b/Documentation/powerpc/cxlflash.txt
@@ -124,8 +124,8 @@ Block library API
http://github.com/open-power/capiflash
-CXL Flash Driver IOCTLs
-=======================
+CXL Flash Driver LUN IOCTLs
+===========================
Users, such as the block library, that wish to interface with a flash
device (LUN) via user space access need to use the services provided
@@ -257,6 +257,12 @@ DK_CXLFLASH_VLUN_RESIZE
operating in the virtual mode and used to program a LUN translation
table that the AFU references when provided with a resource handle.
+ This ioctl can return -EAGAIN if an AFU sync operation takes too long.
+ In addition to returning a failure to user, cxlflash will also schedule
+ an asynchronous AFU reset. Should the user choose to retry the operation,
+ it is expected to succeed. If this ioctl fails with -EAGAIN, the user
+ can either retry the operation or treat it as a failure.
+
DK_CXLFLASH_RELEASE
-------------------
This ioctl is responsible for releasing a previously obtained
@@ -309,6 +315,12 @@ DK_CXLFLASH_VLUN_CLONE
clone. This is to avoid a stale entry in the file descriptor table of the
child process.
+ This ioctl can return -EAGAIN if an AFU sync operation takes too long.
+ In addition to returning a failure to user, cxlflash will also schedule
+ an asynchronous AFU reset. Should the user choose to retry the operation,
+ it is expected to succeed. If this ioctl fails with -EAGAIN, the user
+ can either retry the operation or treat it as a failure.
+
DK_CXLFLASH_VERIFY
------------------
This ioctl is used to detect various changes such as the capacity of
@@ -355,3 +367,63 @@ DK_CXLFLASH_MANAGE_LUN
exclusive user space access (superpipe). In case a LUN is visible
across multiple ports and adapters, this ioctl is used to uniquely
identify each LUN by its World Wide Node Name (WWNN).
+
+
+CXL Flash Driver Host IOCTLs
+============================
+
+ Each host adapter instance that is supported by the cxlflash driver
+ has a special character device associated with it to enable a set of
+ host management function. These character devices are hosted in a
+ class dedicated for cxlflash and can be accessed via /dev/cxlflash/*.
+
+ Applications can be written to perform various functions using the
+ host ioctl APIs below.
+
+ The structure definitions for these IOCTLs are available in:
+ uapi/scsi/cxlflash_ioctl.h
+
+HT_CXLFLASH_LUN_PROVISION
+-------------------------
+ This ioctl is used to create and delete persistent LUNs on cxlflash
+ devices that lack an external LUN management interface. It is only
+ valid when used with AFUs that support the LUN provision capability.
+
+ When sufficient space is available, LUNs can be created by specifying
+ the target port to host the LUN and a desired size in 4K blocks. Upon
+ success, the LUN ID and WWID of the created LUN will be returned and
+ the SCSI bus can be scanned to detect the change in LUN topology. Note
+ that partial allocations are not supported. Should a creation fail due
+ to a space issue, the target port can be queried for its current LUN
+ geometry.
+
+ To remove a LUN, the device must first be disassociated from the Linux
+ SCSI subsystem. The LUN deletion can then be initiated by specifying a
+ target port and LUN ID. Upon success, the LUN geometry associated with
+ the port will be updated to reflect new number of provisioned LUNs and
+ available capacity.
+
+ To query the LUN geometry of a port, the target port is specified and
+ upon success, the following information is presented:
+
+ - Maximum number of provisioned LUNs allowed for the port
+ - Current number of provisioned LUNs for the port
+ - Maximum total capacity of provisioned LUNs for the port (4K blocks)
+ - Current total capacity of provisioned LUNs for the port (4K blocks)
+
+ With this information, the number of available LUNs and capacity can be
+ can be calculated.
+
+HT_CXLFLASH_AFU_DEBUG
+---------------------
+ This ioctl is used to debug AFUs by supporting a command pass-through
+ interface. It is only valid when used with AFUs that support the AFU
+ debug capability.
+
+ With exception of buffer management, AFU debug commands are opaque to
+ cxlflash and treated as pass-through. For debug commands that do require
+ data transfer, the user supplies an adequately sized data buffer and must
+ specify the data transfer direction with respect to the host. There is a
+ maximum transfer size of 256K imposed. Note that partial read completions
+ are not supported - when errors are experienced with a host read data
+ transfer, the data buffer is not copied back to the user.
diff --git a/Documentation/powerpc/firmware-assisted-dump.txt b/Documentation/powerpc/firmware-assisted-dump.txt
index 9cabaf8a207e..bdd344aa18d9 100644
--- a/Documentation/powerpc/firmware-assisted-dump.txt
+++ b/Documentation/powerpc/firmware-assisted-dump.txt
@@ -61,8 +61,8 @@ as follows:
boot successfully. For syntax of crashkernel= parameter,
refer to Documentation/kdump/kdump.txt. If any offset is
provided in crashkernel= parameter, it will be ignored
- as fadump reserves memory at end of RAM for boot memory
- dump preservation in case of a crash.
+ as fadump uses a predefined offset to reserve memory
+ for boot memory dump preservation in case of a crash.
-- After the low memory (boot memory) area has been saved, the
firmware will reset PCI and other hardware state. It will
diff --git a/Documentation/pps/pps.txt b/Documentation/pps/pps.txt
index 1fdbd5447216..99f5d8c4c652 100644
--- a/Documentation/pps/pps.txt
+++ b/Documentation/pps/pps.txt
@@ -48,12 +48,12 @@ problem:
time_pps_create().
This implies that the source has a /dev/... entry. This assumption is
-ok for the serial and parallel port, where you can do something
+OK for the serial and parallel port, where you can do something
useful besides(!) the gathering of timestamps as it is the central
-task for a PPS-API. But this assumption does not work for a single
+task for a PPS API. But this assumption does not work for a single
purpose GPIO line. In this case even basic file-related functionality
(like read() and write()) makes no sense at all and should not be a
-precondition for the use of a PPS-API.
+precondition for the use of a PPS API.
The problem can be simply solved if you consider that a PPS source is
not always connected with a GPS data source.
@@ -88,13 +88,13 @@ Coding example
--------------
To register a PPS source into the kernel you should define a struct
-pps_source_info_s as follows:
+pps_source_info as follows:
static struct pps_source_info pps_ktimer_info = {
.name = "ktimer",
.path = "",
- .mode = PPS_CAPTUREASSERT | PPS_OFFSETASSERT | \
- PPS_ECHOASSERT | \
+ .mode = PPS_CAPTUREASSERT | PPS_OFFSETASSERT |
+ PPS_ECHOASSERT |
PPS_CANWAIT | PPS_TSFMT_TSPEC,
.echo = pps_ktimer_echo,
.owner = THIS_MODULE,
@@ -108,13 +108,13 @@ initialization routine as follows:
The pps_register_source() prototype is:
- int pps_register_source(struct pps_source_info_s *info, int default_params)
+ int pps_register_source(struct pps_source_info *info, int default_params)
where "info" is a pointer to a structure that describes a particular
PPS source, "default_params" tells the system what the initial default
parameters for the device should be (it is obvious that these parameters
must be a subset of ones defined in the struct
-pps_source_info_s which describe the capabilities of the driver).
+pps_source_info which describe the capabilities of the driver).
Once you have registered a new PPS source into the system you can
signal an assert event (for example in the interrupt handler routine)
@@ -142,8 +142,10 @@ If the SYSFS filesystem is enabled in the kernel it provides a new class:
Every directory is the ID of a PPS sources defined in the system and
inside you find several files:
- $ ls /sys/class/pps/pps0/
- assert clear echo mode name path subsystem@ uevent
+ $ ls -F /sys/class/pps/pps0/
+ assert dev mode path subsystem@
+ clear echo name power/ uevent
+
Inside each "assert" and "clear" file you can find the timestamp and a
sequence number:
@@ -154,32 +156,32 @@ sequence number:
Where before the "#" is the timestamp in seconds; after it is the
sequence number. Other files are:
-* echo: reports if the PPS source has an echo function or not;
+ * echo: reports if the PPS source has an echo function or not;
-* mode: reports available PPS functioning modes;
+ * mode: reports available PPS functioning modes;
-* name: reports the PPS source's name;
+ * name: reports the PPS source's name;
-* path: reports the PPS source's device path, that is the device the
- PPS source is connected to (if it exists).
+ * path: reports the PPS source's device path, that is the device the
+ PPS source is connected to (if it exists).
Testing the PPS support
-----------------------
In order to test the PPS support even without specific hardware you can use
-the ktimer driver (see the client subsection in the PPS configuration menu)
+the pps-ktimer driver (see the client subsection in the PPS configuration menu)
and the userland tools available in your distribution's pps-tools package,
-http://linuxpps.org , or https://github.com/ago/pps-tools .
+http://linuxpps.org , or https://github.com/redlab-i/pps-tools.
-Once you have enabled the compilation of ktimer just modprobe it (if
+Once you have enabled the compilation of pps-ktimer just modprobe it (if
not statically compiled):
- # modprobe ktimer
+ # modprobe pps-ktimer
and the run ppstest as follow:
- $ ./ppstest /dev/pps0
+ $ ./ppstest /dev/pps1
trying PPS source "/dev/pps1"
found PPS source "/dev/pps1"
ok, found 1 source(s), now start fetching data...
@@ -187,7 +189,7 @@ and the run ppstest as follow:
source 0 - assert 1186592700.388931295, sequence: 365 - clear 0.000000000, sequence: 0
source 0 - assert 1186592701.389032765, sequence: 366 - clear 0.000000000, sequence: 0
-Please, note that to compile userland programs you need the file timepps.h .
+Please note that to compile userland programs, you need the file timepps.h.
This is available in the pps-tools repository mentioned above.
diff --git a/Documentation/prctl/no_new_privs.txt b/Documentation/prctl/no_new_privs.txt
deleted file mode 100644
index f7be84fba910..000000000000
--- a/Documentation/prctl/no_new_privs.txt
+++ /dev/null
@@ -1,57 +0,0 @@
-The execve system call can grant a newly-started program privileges that
-its parent did not have. The most obvious examples are setuid/setgid
-programs and file capabilities. To prevent the parent program from
-gaining these privileges as well, the kernel and user code must be
-careful to prevent the parent from doing anything that could subvert the
-child. For example:
-
- - The dynamic loader handles LD_* environment variables differently if
- a program is setuid.
-
- - chroot is disallowed to unprivileged processes, since it would allow
- /etc/passwd to be replaced from the point of view of a process that
- inherited chroot.
-
- - The exec code has special handling for ptrace.
-
-These are all ad-hoc fixes. The no_new_privs bit (since Linux 3.5) is a
-new, generic mechanism to make it safe for a process to modify its
-execution environment in a manner that persists across execve. Any task
-can set no_new_privs. Once the bit is set, it is inherited across fork,
-clone, and execve and cannot be unset. With no_new_privs set, execve
-promises not to grant the privilege to do anything that could not have
-been done without the execve call. For example, the setuid and setgid
-bits will no longer change the uid or gid; file capabilities will not
-add to the permitted set, and LSMs will not relax constraints after
-execve.
-
-To set no_new_privs, use prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0).
-
-Be careful, though: LSMs might also not tighten constraints on exec
-in no_new_privs mode. (This means that setting up a general-purpose
-service launcher to set no_new_privs before execing daemons may
-interfere with LSM-based sandboxing.)
-
-Note that no_new_privs does not prevent privilege changes that do not
-involve execve. An appropriately privileged task can still call
-setuid(2) and receive SCM_RIGHTS datagrams.
-
-There are two main use cases for no_new_privs so far:
-
- - Filters installed for the seccomp mode 2 sandbox persist across
- execve and can change the behavior of newly-executed programs.
- Unprivileged users are therefore only allowed to install such filters
- if no_new_privs is set.
-
- - By itself, no_new_privs can be used to reduce the attack surface
- available to an unprivileged user. If everything running with a
- given uid has no_new_privs set, then that uid will be unable to
- escalate its privileges by directly attacking setuid, setgid, and
- fcap-using binaries; it will need to compromise something without the
- no_new_privs bit set first.
-
-In the future, other potentially dangerous kernel features could become
-available to unprivileged tasks if no_new_privs is set. In principle,
-several options to unshare(2) and clone(2) would be safe when
-no_new_privs is set, and no_new_privs + chroot is considerable less
-dangerous than chroot by itself.
diff --git a/Documentation/prctl/seccomp_filter.txt b/Documentation/prctl/seccomp_filter.txt
deleted file mode 100644
index 1e469ef75778..000000000000
--- a/Documentation/prctl/seccomp_filter.txt
+++ /dev/null
@@ -1,225 +0,0 @@
- SECure COMPuting with filters
- =============================
-
-Introduction
-------------
-
-A large number of system calls are exposed to every userland process
-with many of them going unused for the entire lifetime of the process.
-As system calls change and mature, bugs are found and eradicated. A
-certain subset of userland applications benefit by having a reduced set
-of available system calls. The resulting set reduces the total kernel
-surface exposed to the application. System call filtering is meant for
-use with those applications.
-
-Seccomp filtering provides a means for a process to specify a filter for
-incoming system calls. The filter is expressed as a Berkeley Packet
-Filter (BPF) program, as with socket filters, except that the data
-operated on is related to the system call being made: system call
-number and the system call arguments. This allows for expressive
-filtering of system calls using a filter program language with a long
-history of being exposed to userland and a straightforward data set.
-
-Additionally, BPF makes it impossible for users of seccomp to fall prey
-to time-of-check-time-of-use (TOCTOU) attacks that are common in system
-call interposition frameworks. BPF programs may not dereference
-pointers which constrains all filters to solely evaluating the system
-call arguments directly.
-
-What it isn't
--------------
-
-System call filtering isn't a sandbox. It provides a clearly defined
-mechanism for minimizing the exposed kernel surface. It is meant to be
-a tool for sandbox developers to use. Beyond that, policy for logical
-behavior and information flow should be managed with a combination of
-other system hardening techniques and, potentially, an LSM of your
-choosing. Expressive, dynamic filters provide further options down this
-path (avoiding pathological sizes or selecting which of the multiplexed
-system calls in socketcall() is allowed, for instance) which could be
-construed, incorrectly, as a more complete sandboxing solution.
-
-Usage
------
-
-An additional seccomp mode is added and is enabled using the same
-prctl(2) call as the strict seccomp. If the architecture has
-CONFIG_HAVE_ARCH_SECCOMP_FILTER, then filters may be added as below:
-
-PR_SET_SECCOMP:
- Now takes an additional argument which specifies a new filter
- using a BPF program.
- The BPF program will be executed over struct seccomp_data
- reflecting the system call number, arguments, and other
- metadata. The BPF program must then return one of the
- acceptable values to inform the kernel which action should be
- taken.
-
- Usage:
- prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, prog);
-
- The 'prog' argument is a pointer to a struct sock_fprog which
- will contain the filter program. If the program is invalid, the
- call will return -1 and set errno to EINVAL.
-
- If fork/clone and execve are allowed by @prog, any child
- processes will be constrained to the same filters and system
- call ABI as the parent.
-
- Prior to use, the task must call prctl(PR_SET_NO_NEW_PRIVS, 1) or
- run with CAP_SYS_ADMIN privileges in its namespace. If these are not
- true, -EACCES will be returned. This requirement ensures that filter
- programs cannot be applied to child processes with greater privileges
- than the task that installed them.
-
- Additionally, if prctl(2) is allowed by the attached filter,
- additional filters may be layered on which will increase evaluation
- time, but allow for further decreasing the attack surface during
- execution of a process.
-
-The above call returns 0 on success and non-zero on error.
-
-Return values
--------------
-A seccomp filter may return any of the following values. If multiple
-filters exist, the return value for the evaluation of a given system
-call will always use the highest precedent value. (For example,
-SECCOMP_RET_KILL will always take precedence.)
-
-In precedence order, they are:
-
-SECCOMP_RET_KILL:
- Results in the task exiting immediately without executing the
- system call. The exit status of the task (status & 0x7f) will
- be SIGSYS, not SIGKILL.
-
-SECCOMP_RET_TRAP:
- Results in the kernel sending a SIGSYS signal to the triggering
- task without executing the system call. siginfo->si_call_addr
- will show the address of the system call instruction, and
- siginfo->si_syscall and siginfo->si_arch will indicate which
- syscall was attempted. The program counter will be as though
- the syscall happened (i.e. it will not point to the syscall
- instruction). The return value register will contain an arch-
- dependent value -- if resuming execution, set it to something
- sensible. (The architecture dependency is because replacing
- it with -ENOSYS could overwrite some useful information.)
-
- The SECCOMP_RET_DATA portion of the return value will be passed
- as si_errno.
-
- SIGSYS triggered by seccomp will have a si_code of SYS_SECCOMP.
-
-SECCOMP_RET_ERRNO:
- Results in the lower 16-bits of the return value being passed
- to userland as the errno without executing the system call.
-
-SECCOMP_RET_TRACE:
- When returned, this value will cause the kernel to attempt to
- notify a ptrace()-based tracer prior to executing the system
- call. If there is no tracer present, -ENOSYS is returned to
- userland and the system call is not executed.
-
- A tracer will be notified if it requests PTRACE_O_TRACESECCOMP
- using ptrace(PTRACE_SETOPTIONS). The tracer will be notified
- of a PTRACE_EVENT_SECCOMP and the SECCOMP_RET_DATA portion of
- the BPF program return value will be available to the tracer
- via PTRACE_GETEVENTMSG.
-
- The tracer can skip the system call by changing the syscall number
- to -1. Alternatively, the tracer can change the system call
- requested by changing the system call to a valid syscall number. If
- the tracer asks to skip the system call, then the system call will
- appear to return the value that the tracer puts in the return value
- register.
-
- The seccomp check will not be run again after the tracer is
- notified. (This means that seccomp-based sandboxes MUST NOT
- allow use of ptrace, even of other sandboxed processes, without
- extreme care; ptracers can use this mechanism to escape.)
-
-SECCOMP_RET_ALLOW:
- Results in the system call being executed.
-
-If multiple filters exist, the return value for the evaluation of a
-given system call will always use the highest precedent value.
-
-Precedence is only determined using the SECCOMP_RET_ACTION mask. When
-multiple filters return values of the same precedence, only the
-SECCOMP_RET_DATA from the most recently installed filter will be
-returned.
-
-Pitfalls
---------
-
-The biggest pitfall to avoid during use is filtering on system call
-number without checking the architecture value. Why? On any
-architecture that supports multiple system call invocation conventions,
-the system call numbers may vary based on the specific invocation. If
-the numbers in the different calling conventions overlap, then checks in
-the filters may be abused. Always check the arch value!
-
-Example
--------
-
-The samples/seccomp/ directory contains both an x86-specific example
-and a more generic example of a higher level macro interface for BPF
-program generation.
-
-
-
-Adding architecture support
------------------------
-
-See arch/Kconfig for the authoritative requirements. In general, if an
-architecture supports both ptrace_event and seccomp, it will be able to
-support seccomp filter with minor fixup: SIGSYS support and seccomp return
-value checking. Then it must just add CONFIG_HAVE_ARCH_SECCOMP_FILTER
-to its arch-specific Kconfig.
-
-
-
-Caveats
--------
-
-The vDSO can cause some system calls to run entirely in userspace,
-leading to surprises when you run programs on different machines that
-fall back to real syscalls. To minimize these surprises on x86, make
-sure you test with
-/sys/devices/system/clocksource/clocksource0/current_clocksource set to
-something like acpi_pm.
-
-On x86-64, vsyscall emulation is enabled by default. (vsyscalls are
-legacy variants on vDSO calls.) Currently, emulated vsyscalls will honor seccomp, with a few oddities:
-
-- A return value of SECCOMP_RET_TRAP will set a si_call_addr pointing to
- the vsyscall entry for the given call and not the address after the
- 'syscall' instruction. Any code which wants to restart the call
- should be aware that (a) a ret instruction has been emulated and (b)
- trying to resume the syscall will again trigger the standard vsyscall
- emulation security checks, making resuming the syscall mostly
- pointless.
-
-- A return value of SECCOMP_RET_TRACE will signal the tracer as usual,
- but the syscall may not be changed to another system call using the
- orig_rax register. It may only be changed to -1 order to skip the
- currently emulated call. Any other change MAY terminate the process.
- The rip value seen by the tracer will be the syscall entry address;
- this is different from normal behavior. The tracer MUST NOT modify
- rip or rsp. (Do not rely on other changes terminating the process.
- They might work. For example, on some kernels, choosing a syscall
- that only exists in future kernels will be correctly emulated (by
- returning -ENOSYS).
-
-To detect this quirky behavior, check for addr & ~0x0C00 ==
-0xFFFFFFFFFF600000. (For SECCOMP_RET_TRACE, use rip. For
-SECCOMP_RET_TRAP, use siginfo->si_call_addr.) Do not check any other
-condition: future kernels may improve vsyscall emulation and current
-kernels in vsyscall=native mode will behave differently, but the
-instructions at 0xF...F600{0,4,8,C}00 will not be system calls in these
-cases.
-
-Note that modern systems are unlikely to use vsyscalls at all -- they
-are a legacy feature and they are considerably slower than standard
-syscalls. New code will use the vDSO, and vDSO-issued system calls
-are indistinguishable from normal system calls.
diff --git a/Documentation/preempt-locking.txt b/Documentation/preempt-locking.txt
index e89ce6624af2..c945062be66c 100644
--- a/Documentation/preempt-locking.txt
+++ b/Documentation/preempt-locking.txt
@@ -1,10 +1,13 @@
- Proper Locking Under a Preemptible Kernel:
- Keeping Kernel Code Preempt-Safe
- Robert Love <rml@tech9.net>
- Last Updated: 28 Aug 2002
+===========================================================================
+Proper Locking Under a Preemptible Kernel: Keeping Kernel Code Preempt-Safe
+===========================================================================
+:Author: Robert Love <rml@tech9.net>
+:Last Updated: 28 Aug 2002
-INTRODUCTION
+
+Introduction
+============
A preemptible kernel creates new locking issues. The issues are the same as
@@ -17,9 +20,10 @@ requires protecting these situations.
RULE #1: Per-CPU data structures need explicit protection
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-Two similar problems arise. An example code snippet:
+Two similar problems arise. An example code snippet::
struct this_needs_locking tux[NR_CPUS];
tux[smp_processor_id()] = some_value;
@@ -35,6 +39,7 @@ You can also use put_cpu() and get_cpu(), which will disable preemption.
RULE #2: CPU state must be protected.
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Under preemption, the state of the CPU must be protected. This is arch-
@@ -52,6 +57,7 @@ However, fpu__restore() must be called with preemption disabled.
RULE #3: Lock acquire and release must be performed by same task
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
A lock acquired in one task must be released by the same task. This
@@ -61,17 +67,20 @@ like this, acquire and release the task in the same code path and
have the caller wait on an event by the other task.
-SOLUTION
+Solution
+========
Data protection under preemption is achieved by disabling preemption for the
duration of the critical region.
-preempt_enable() decrement the preempt counter
-preempt_disable() increment the preempt counter
-preempt_enable_no_resched() decrement, but do not immediately preempt
-preempt_check_resched() if needed, reschedule
-preempt_count() return the preempt counter
+::
+
+ preempt_enable() decrement the preempt counter
+ preempt_disable() increment the preempt counter
+ preempt_enable_no_resched() decrement, but do not immediately preempt
+ preempt_check_resched() if needed, reschedule
+ preempt_count() return the preempt counter
The functions are nestable. In other words, you can call preempt_disable
n-times in a code path, and preemption will not be reenabled until the n-th
@@ -89,7 +98,7 @@ So use this implicit preemption-disabling property only if you know that the
affected codepath does not do any of this. Best policy is to use this only for
small, atomic code that you wrote and which calls no complex functions.
-Example:
+Example::
cpucache_t *cc; /* this is per-CPU */
preempt_disable();
@@ -102,7 +111,7 @@ Example:
return 0;
Notice how the preemption statements must encompass every reference of the
-critical variables. Another example:
+critical variables. Another example::
int buf[NR_CPUS];
set_cpu_val(buf);
@@ -114,7 +123,8 @@ This code is not preempt-safe, but see how easily we can fix it by simply
moving the spin_lock up two lines.
-PREVENTING PREEMPTION USING INTERRUPT DISABLING
+Preventing preemption using interrupt disabling
+===============================================
It is possible to prevent a preemption event using local_irq_disable and
diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 5962949944fd..361789df51ec 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -1,5 +1,18 @@
-If variable is of Type, use printk format specifier:
----------------------------------------------------------
+=========================================
+How to get printk format specifiers right
+=========================================
+
+:Author: Randy Dunlap <rdunlap@infradead.org>
+:Author: Andrew Murray <amurray@mpc-data.co.uk>
+
+
+Integer types
+=============
+
+::
+
+ If variable is of Type, use printk format specifier:
+ ------------------------------------------------------------
int %d or %x
unsigned int %u or %x
long %ld or %lx
@@ -13,25 +26,29 @@ If variable is of Type, use printk format specifier:
s64 %lld or %llx
u64 %llu or %llx
-If <type> is dependent on a config option for its size (e.g., sector_t,
-blkcnt_t) or is architecture-dependent for its size (e.g., tcflag_t), use a
-format specifier of its largest possible type and explicitly cast to it.
-Example:
+If <type> is dependent on a config option for its size (e.g., ``sector_t``,
+``blkcnt_t``) or is architecture-dependent for its size (e.g., ``tcflag_t``),
+use a format specifier of its largest possible type and explicitly cast to it.
+
+Example::
printk("test: sector number/total blocks: %llu/%llu\n",
(unsigned long long)sector, (unsigned long long)blockcount);
-Reminder: sizeof() result is of type size_t.
+Reminder: ``sizeof()`` result is of type ``size_t``.
-The kernel's printf does not support %n. For obvious reasons, floating
-point formats (%e, %f, %g, %a) are also not recognized. Use of any
+The kernel's printf does not support ``%n``. For obvious reasons, floating
+point formats (``%e, %f, %g, %a``) are also not recognized. Use of any
unsupported specifier or length qualifier results in a WARN and early
return from vsnprintf.
Raw pointer value SHOULD be printed with %p. The kernel supports
the following extended format specifiers for pointer types:
-Symbols/Function Pointers:
+Symbols/Function Pointers
+=========================
+
+::
%pF versatile_init+0x0/0x110
%pf versatile_init
@@ -41,99 +58,135 @@ Symbols/Function Pointers:
%ps versatile_init
%pB prev_fn_of_versatile_init+0x88/0x88
- For printing symbols and function pointers. The 'S' and 's' specifiers
- result in the symbol name with ('S') or without ('s') offsets. Where
- this is used on a kernel without KALLSYMS - the symbol address is
- printed instead.
+The ``F`` and ``f`` specifiers are for printing function pointers,
+for example, f->func, &gettimeofday. They have the same result as
+``S`` and ``s`` specifiers. But they do an extra conversion on
+ia64, ppc64 and parisc64 architectures where the function pointers
+are actually function descriptors.
- The 'B' specifier results in the symbol name with offsets and should be
- used when printing stack backtraces. The specifier takes into
- consideration the effect of compiler optimisations which may occur
- when tail-call's are used and marked with the noreturn GCC attribute.
+The ``S`` and ``s`` specifiers can be used for printing symbols
+from direct addresses, for example, __builtin_return_address(0),
+(void *)regs->ip. They result in the symbol name with (``S``) or
+without (``s``) offsets. If KALLSYMS are disabled then the symbol
+address is printed instead.
- On ia64, ppc64 and parisc64 architectures function pointers are
- actually function descriptors which must first be resolved. The 'F' and
- 'f' specifiers perform this resolution and then provide the same
- functionality as the 'S' and 's' specifiers.
+The ``B`` specifier results in the symbol name with offsets and should be
+used when printing stack backtraces. The specifier takes into
+consideration the effect of compiler optimisations which may occur
+when tail-call``s are used and marked with the noreturn GCC attribute.
-Kernel Pointers:
+Examples::
+
+ printk("Going to call: %pF\n", gettimeofday);
+ printk("Going to call: %pF\n", p->func);
+ printk("%s: called from %pS\n", __func__, (void *)_RET_IP_);
+ printk("%s: called from %pS\n", __func__,
+ (void *)__builtin_return_address(0));
+ printk("Faulted at %pS\n", (void *)regs->ip);
+ printk(" %s%pB\n", (reliable ? "" : "? "), (void *)*stack);
+
+
+Kernel Pointers
+===============
+
+::
%pK 0x01234567 or 0x0123456789abcdef
- For printing kernel pointers which should be hidden from unprivileged
- users. The behaviour of %pK depends on the kptr_restrict sysctl - see
- Documentation/sysctl/kernel.txt for more details.
+For printing kernel pointers which should be hidden from unprivileged
+users. The behaviour of ``%pK`` depends on the ``kptr_restrict sysctl`` - see
+Documentation/sysctl/kernel.txt for more details.
-Struct Resources:
+Struct Resources
+================
+
+::
%pr [mem 0x60000000-0x6fffffff flags 0x2200] or
[mem 0x0000000060000000-0x000000006fffffff flags 0x2200]
%pR [mem 0x60000000-0x6fffffff pref] or
[mem 0x0000000060000000-0x000000006fffffff pref]
- For printing struct resources. The 'R' and 'r' specifiers result in a
- printed resource with ('R') or without ('r') a decoded flags member.
- Passed by reference.
+For printing struct resources. The ``R`` and ``r`` specifiers result in a
+printed resource with (``R``) or without (``r``) a decoded flags member.
+Passed by reference.
+
+Physical addresses types ``phys_addr_t``
+========================================
-Physical addresses types phys_addr_t:
+::
%pa[p] 0x01234567 or 0x0123456789abcdef
- For printing a phys_addr_t type (and its derivatives, such as
- resource_size_t) which can vary based on build options, regardless of
- the width of the CPU data path. Passed by reference.
+For printing a ``phys_addr_t`` type (and its derivatives, such as
+``resource_size_t``) which can vary based on build options, regardless of
+the width of the CPU data path. Passed by reference.
-DMA addresses types dma_addr_t:
+DMA addresses types ``dma_addr_t``
+==================================
+
+::
%pad 0x01234567 or 0x0123456789abcdef
- For printing a dma_addr_t type which can vary based on build options,
- regardless of the width of the CPU data path. Passed by reference.
+For printing a ``dma_addr_t`` type which can vary based on build options,
+regardless of the width of the CPU data path. Passed by reference.
+
+Raw buffer as an escaped string
+===============================
-Raw buffer as an escaped string:
+::
%*pE[achnops]
- For printing raw buffer as an escaped string. For the following buffer
+For printing raw buffer as an escaped string. For the following buffer::
1b 62 20 5c 43 07 22 90 0d 5d
- few examples show how the conversion would be done (the result string
- without surrounding quotes):
+few examples show how the conversion would be done (the result string
+without surrounding quotes)::
%*pE "\eb \C\a"\220\r]"
%*pEhp "\x1bb \C\x07"\x90\x0d]"
%*pEa "\e\142\040\\\103\a\042\220\r\135"
- The conversion rules are applied according to an optional combination
- of flags (see string_escape_mem() kernel documentation for the
- details):
- a - ESCAPE_ANY
- c - ESCAPE_SPECIAL
- h - ESCAPE_HEX
- n - ESCAPE_NULL
- o - ESCAPE_OCTAL
- p - ESCAPE_NP
- s - ESCAPE_SPACE
- By default ESCAPE_ANY_NP is used.
+The conversion rules are applied according to an optional combination
+of flags (see :c:func:`string_escape_mem` kernel documentation for the
+details):
+
+ - ``a`` - ESCAPE_ANY
+ - ``c`` - ESCAPE_SPECIAL
+ - ``h`` - ESCAPE_HEX
+ - ``n`` - ESCAPE_NULL
+ - ``o`` - ESCAPE_OCTAL
+ - ``p`` - ESCAPE_NP
+ - ``s`` - ESCAPE_SPACE
+
+By default ESCAPE_ANY_NP is used.
- ESCAPE_ANY_NP is the sane choice for many cases, in particularly for
- printing SSIDs.
+ESCAPE_ANY_NP is the sane choice for many cases, in particularly for
+printing SSIDs.
- If field width is omitted the 1 byte only will be escaped.
+If field width is omitted the 1 byte only will be escaped.
-Raw buffer as a hex string:
+Raw buffer as a hex string
+==========================
+
+::
%*ph 00 01 02 ... 3f
%*phC 00:01:02: ... :3f
%*phD 00-01-02- ... -3f
%*phN 000102 ... 3f
- For printing a small buffers (up to 64 bytes long) as a hex string with
- certain separator. For the larger buffers consider to use
- print_hex_dump().
+For printing a small buffers (up to 64 bytes long) as a hex string with
+certain separator. For the larger buffers consider to use
+:c:func:`print_hex_dump`.
+
+MAC/FDDI addresses
+==================
-MAC/FDDI addresses:
+::
%pM 00:01:02:03:04:05
%pMR 05:04:03:02:01:00
@@ -141,53 +194,62 @@ MAC/FDDI addresses:
%pm 000102030405
%pmR 050403020100
- For printing 6-byte MAC/FDDI addresses in hex notation. The 'M' and 'm'
- specifiers result in a printed address with ('M') or without ('m') byte
- separators. The default byte separator is the colon (':').
+For printing 6-byte MAC/FDDI addresses in hex notation. The ``M`` and ``m``
+specifiers result in a printed address with (``M``) or without (``m``) byte
+separators. The default byte separator is the colon (``:``).
- Where FDDI addresses are concerned the 'F' specifier can be used after
- the 'M' specifier to use dash ('-') separators instead of the default
- separator.
+Where FDDI addresses are concerned the ``F`` specifier can be used after
+the ``M`` specifier to use dash (``-``) separators instead of the default
+separator.
- For Bluetooth addresses the 'R' specifier shall be used after the 'M'
- specifier to use reversed byte order suitable for visual interpretation
- of Bluetooth addresses which are in the little endian order.
+For Bluetooth addresses the ``R`` specifier shall be used after the ``M``
+specifier to use reversed byte order suitable for visual interpretation
+of Bluetooth addresses which are in the little endian order.
- Passed by reference.
+Passed by reference.
-IPv4 addresses:
+IPv4 addresses
+==============
+
+::
%pI4 1.2.3.4
%pi4 001.002.003.004
%p[Ii]4[hnbl]
- For printing IPv4 dot-separated decimal addresses. The 'I4' and 'i4'
- specifiers result in a printed address with ('i4') or without ('I4')
- leading zeros.
+For printing IPv4 dot-separated decimal addresses. The ``I4`` and ``i4``
+specifiers result in a printed address with (``i4``) or without (``I4``)
+leading zeros.
- The additional 'h', 'n', 'b', and 'l' specifiers are used to specify
- host, network, big or little endian order addresses respectively. Where
- no specifier is provided the default network/big endian order is used.
+The additional ``h``, ``n``, ``b``, and ``l`` specifiers are used to specify
+host, network, big or little endian order addresses respectively. Where
+no specifier is provided the default network/big endian order is used.
- Passed by reference.
+Passed by reference.
+
+IPv6 addresses
+==============
-IPv6 addresses:
+::
%pI6 0001:0002:0003:0004:0005:0006:0007:0008
%pi6 00010002000300040005000600070008
%pI6c 1:2:3:4:5:6:7:8
- For printing IPv6 network-order 16-bit hex addresses. The 'I6' and 'i6'
- specifiers result in a printed address with ('I6') or without ('i6')
- colon-separators. Leading zeros are always used.
+For printing IPv6 network-order 16-bit hex addresses. The ``I6`` and ``i6``
+specifiers result in a printed address with (``I6``) or without (``i6``)
+colon-separators. Leading zeros are always used.
- The additional 'c' specifier can be used with the 'I' specifier to
- print a compressed IPv6 address as described by
- http://tools.ietf.org/html/rfc5952
+The additional ``c`` specifier can be used with the ``I`` specifier to
+print a compressed IPv6 address as described by
+http://tools.ietf.org/html/rfc5952
- Passed by reference.
+Passed by reference.
+
+IPv4/IPv6 addresses (generic, with port, flowinfo, scope)
+=========================================================
-IPv4/IPv6 addresses (generic, with port, flowinfo, scope):
+::
%pIS 1.2.3.4 or 0001:0002:0003:0004:0005:0006:0007:0008
%piS 001.002.003.004 or 00010002000300040005000600070008
@@ -195,141 +257,202 @@ IPv4/IPv6 addresses (generic, with port, flowinfo, scope):
%pISpc 1.2.3.4:12345 or [1:2:3:4:5:6:7:8]:12345
%p[Ii]S[pfschnbl]
- For printing an IP address without the need to distinguish whether it's
- of type AF_INET or AF_INET6, a pointer to a valid 'struct sockaddr',
- specified through 'IS' or 'iS', can be passed to this format specifier.
+For printing an IP address without the need to distinguish whether it``s
+of type AF_INET or AF_INET6, a pointer to a valid ``struct sockaddr``,
+specified through ``IS`` or ``iS``, can be passed to this format specifier.
- The additional 'p', 'f', and 's' specifiers are used to specify port
- (IPv4, IPv6), flowinfo (IPv6) and scope (IPv6). Ports have a ':' prefix,
- flowinfo a '/' and scope a '%', each followed by the actual value.
+The additional ``p``, ``f``, and ``s`` specifiers are used to specify port
+(IPv4, IPv6), flowinfo (IPv6) and scope (IPv6). Ports have a ``:`` prefix,
+flowinfo a ``/`` and scope a ``%``, each followed by the actual value.
- In case of an IPv6 address the compressed IPv6 address as described by
- http://tools.ietf.org/html/rfc5952 is being used if the additional
- specifier 'c' is given. The IPv6 address is surrounded by '[', ']' in
- case of additional specifiers 'p', 'f' or 's' as suggested by
- https://tools.ietf.org/html/draft-ietf-6man-text-addr-representation-07
+In case of an IPv6 address the compressed IPv6 address as described by
+http://tools.ietf.org/html/rfc5952 is being used if the additional
+specifier ``c`` is given. The IPv6 address is surrounded by ``[``, ``]`` in
+case of additional specifiers ``p``, ``f`` or ``s`` as suggested by
+https://tools.ietf.org/html/draft-ietf-6man-text-addr-representation-07
- In case of IPv4 addresses, the additional 'h', 'n', 'b', and 'l'
- specifiers can be used as well and are ignored in case of an IPv6
- address.
+In case of IPv4 addresses, the additional ``h``, ``n``, ``b``, and ``l``
+specifiers can be used as well and are ignored in case of an IPv6
+address.
- Passed by reference.
+Passed by reference.
- Further examples:
+Further examples::
%pISfc 1.2.3.4 or [1:2:3:4:5:6:7:8]/123456789
%pISsc 1.2.3.4 or [1:2:3:4:5:6:7:8]%1234567890
%pISpfc 1.2.3.4:12345 or [1:2:3:4:5:6:7:8]:12345/123456789
-UUID/GUID addresses:
+UUID/GUID addresses
+===================
+
+::
%pUb 00010203-0405-0607-0809-0a0b0c0d0e0f
%pUB 00010203-0405-0607-0809-0A0B0C0D0E0F
%pUl 03020100-0504-0706-0809-0a0b0c0e0e0f
%pUL 03020100-0504-0706-0809-0A0B0C0E0E0F
- For printing 16-byte UUID/GUIDs addresses. The additional 'l', 'L',
- 'b' and 'B' specifiers are used to specify a little endian order in
- lower ('l') or upper case ('L') hex characters - and big endian order
- in lower ('b') or upper case ('B') hex characters.
+For printing 16-byte UUID/GUIDs addresses. The additional 'l', 'L',
+'b' and 'B' specifiers are used to specify a little endian order in
+lower ('l') or upper case ('L') hex characters - and big endian order
+in lower ('b') or upper case ('B') hex characters.
- Where no additional specifiers are used the default big endian
- order with lower case hex characters will be printed.
+Where no additional specifiers are used the default big endian
+order with lower case hex characters will be printed.
- Passed by reference.
+Passed by reference.
-dentry names:
+dentry names
+============
+
+::
%pd{,2,3,4}
%pD{,2,3,4}
- For printing dentry name; if we race with d_move(), the name might be
- a mix of old and new ones, but it won't oops. %pd dentry is a safer
- equivalent of %s dentry->d_name.name we used to use, %pd<n> prints
- n last components. %pD does the same thing for struct file.
+For printing dentry name; if we race with :c:func:`d_move`, the name might be
+a mix of old and new ones, but it won't oops. ``%pd`` dentry is a safer
+equivalent of ``%s`` ``dentry->d_name.name`` we used to use, ``%pd<n>`` prints
+``n`` last components. ``%pD`` does the same thing for struct file.
- Passed by reference.
+Passed by reference.
-block_device names:
+block_device names
+==================
+
+::
%pg sda, sda1 or loop0p1
- For printing name of block_device pointers.
+For printing name of block_device pointers.
+
+struct va_format
+================
-struct va_format:
+::
%pV
- For printing struct va_format structures. These contain a format string
- and va_list as follows:
+For printing struct va_format structures. These contain a format string
+and va_list as follows::
struct va_format {
const char *fmt;
va_list *va;
};
- Implements a "recursive vsnprintf".
+Implements a "recursive vsnprintf".
+
+Do not use this feature without some mechanism to verify the
+correctness of the format string and va_list arguments.
+
+Passed by reference.
+
+kobjects
+========
+
+::
+
+ %pO
+
+ Base specifier for kobject based structs. Must be followed with
+ character for specific type of kobject as listed below:
+
+ Device tree nodes:
+
+ %pOF[fnpPcCF]
- Do not use this feature without some mechanism to verify the
- correctness of the format string and va_list arguments.
+ For printing device tree nodes. The optional arguments are:
+ f device node full_name
+ n device node name
+ p device node phandle
+ P device node path spec (name + @unit)
+ F device node flags
+ c major compatible string
+ C full compatible string
+ Without any arguments prints full_name (same as %pOFf)
+ The separator when using multiple arguments is ':'
+
+ Examples:
+
+ %pOF /foo/bar@0 - Node full name
+ %pOFf /foo/bar@0 - Same as above
+ %pOFfp /foo/bar@0:10 - Node full name + phandle
+ %pOFfcF /foo/bar@0:foo,device:--P- - Node full name +
+ major compatible string +
+ node flags
+ D - dynamic
+ d - detached
+ P - Populated
+ B - Populated bus
Passed by reference.
-struct clk:
+
+struct clk
+==========
+
+::
%pC pll1
%pCn pll1
%pCr 1560000000
- For printing struct clk structures. '%pC' and '%pCn' print the name
- (Common Clock Framework) or address (legacy clock framework) of the
- structure; '%pCr' prints the current clock rate.
+For printing struct clk structures. ``%pC`` and ``%pCn`` print the name
+(Common Clock Framework) or address (legacy clock framework) of the
+structure; ``%pCr`` prints the current clock rate.
- Passed by reference.
+Passed by reference.
+
+bitmap and its derivatives such as cpumask and nodemask
+=======================================================
-bitmap and its derivatives such as cpumask and nodemask:
+::
%*pb 0779
%*pbl 0,3-6,8-10
- For printing bitmap and its derivatives such as cpumask and nodemask,
- %*pb output the bitmap with field width as the number of bits and %*pbl
- output the bitmap as range list with field width as the number of bits.
+For printing bitmap and its derivatives such as cpumask and nodemask,
+``%*pb`` output the bitmap with field width as the number of bits and ``%*pbl``
+output the bitmap as range list with field width as the number of bits.
- Passed by reference.
+Passed by reference.
-Flags bitfields such as page flags, gfp_flags:
+Flags bitfields such as page flags, gfp_flags
+=============================================
+
+::
%pGp referenced|uptodate|lru|active|private
%pGg GFP_USER|GFP_DMA32|GFP_NOWARN
%pGv read|exec|mayread|maywrite|mayexec|denywrite
- For printing flags bitfields as a collection of symbolic constants that
- would construct the value. The type of flags is given by the third
- character. Currently supported are [p]age flags, [v]ma_flags (both
- expect unsigned long *) and [g]fp_flags (expects gfp_t *). The flag
- names and print order depends on the particular type.
+For printing flags bitfields as a collection of symbolic constants that
+would construct the value. The type of flags is given by the third
+character. Currently supported are [p]age flags, [v]ma_flags (both
+expect ``unsigned long *``) and [g]fp_flags (expects ``gfp_t *``). The flag
+names and print order depends on the particular type.
- Note that this format should not be used directly in TP_printk() part
- of a tracepoint. Instead, use the show_*_flags() functions from
- <trace/events/mmflags.h>.
+Note that this format should not be used directly in :c:func:`TP_printk()` part
+of a tracepoint. Instead, use the ``show_*_flags()`` functions from
+<trace/events/mmflags.h>.
- Passed by reference.
+Passed by reference.
+
+Network device features
+=======================
-Network device features:
+::
%pNF 0x000000000000c000
- For printing netdev_features_t.
+For printing netdev_features_t.
- Passed by reference.
+Passed by reference.
-If you add other %p extensions, please extend lib/test_printf.c with
+If you add other ``%p`` extensions, please extend lib/test_printf.c with
one or more test cases, if at all feasible.
Thank you for your cooperation and attention.
-
-
-By Randy Dunlap <rdunlap@infradead.org> and
-Andrew Murray <amurray@mpc-data.co.uk>
diff --git a/Documentation/process/applying-patches.rst b/Documentation/process/applying-patches.rst
index a0d058cc6d25..dc2ddc345044 100644
--- a/Documentation/process/applying-patches.rst
+++ b/Documentation/process/applying-patches.rst
@@ -6,9 +6,6 @@ Applying Patches To The Linux Kernel
Original by:
Jesper Juhl, August 2005
-Last update:
- 2016-09-14
-
.. note::
This document is obsolete. In most cases, rather than using ``patch``
@@ -344,7 +341,7 @@ possible.
This is a good branch to run for people who want to help out testing
development kernels but do not want to run some of the really experimental
-stuff (such people should see the sections about -git and -mm kernels below).
+stuff (such people should see the sections about -next and -mm kernels below).
The -rc patches are not incremental, they apply to a base 4.x kernel, just
like the 4.x.y patches described above. The kernel version before the -rcN
@@ -380,44 +377,6 @@ Here are 3 examples of how to apply these patches::
$ mv linux-4.7.3 linux-4.8-rc5 # rename the kernel source dir
-The -git kernels
-================
-
-These are daily snapshots of Linus' kernel tree (managed in a git
-repository, hence the name).
-
-These patches are usually released daily and represent the current state of
-Linus's tree. They are more experimental than -rc kernels since they are
-generated automatically without even a cursory glance to see if they are
-sane.
-
--git patches are not incremental and apply either to a base 4.x kernel or
-a base 4.x-rc kernel -- you can see which from their name.
-A patch named 4.7-git1 applies to the 4.7 kernel source and a patch
-named 4.8-rc3-git2 applies to the source of the 4.8-rc3 kernel.
-
-Here are some examples of how to apply these patches::
-
- # moving from 4.7 to 4.7-git1
-
- $ cd ~/linux-4.7 # change to the kernel source dir
- $ patch -p1 < ../patch-4.7-git1 # apply the 4.7-git1 patch
- $ cd ..
- $ mv linux-4.7 linux-4.7-git1 # rename the kernel source dir
-
- # moving from 4.7-git1 to 4.8-rc2-git3
-
- $ cd ~/linux-4.7-git1 # change to the kernel source dir
- $ patch -p1 -R < ../patch-4.7-git1 # revert the 4.7-git1 patch
- # we now have a 4.7 kernel
- $ patch -p1 < ../patch-4.8-rc2 # apply the 4.8-rc2 patch
- # the kernel is now 4.8-rc2
- $ patch -p1 < ../patch-4.8-rc2-git3 # apply the 4.8-rc2-git3 patch
- # the kernel is now 4.8-rc2-git3
- $ cd ..
- $ mv linux-4.7-git1 linux-4.8-rc2-git3 # rename source dir
-
-
The -mm patches and the linux-next tree
=======================================
diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst
index e25d63f8c0da..560beaef5a7c 100644
--- a/Documentation/process/changes.rst
+++ b/Documentation/process/changes.rst
@@ -31,7 +31,7 @@ you probably needn't concern yourself with isdn4k-utils.
====================== =============== ========================================
GNU C 3.2 gcc --version
GNU make 3.81 make --version
-binutils 2.12 ld -v
+binutils 2.20 ld -v
util-linux 2.10o fdformat --version
module-init-tools 0.9.10 depmod -V
e2fsprogs 1.41.4 e2fsck -V
@@ -53,7 +53,7 @@ mcelog 0.6 mcelog --version
iptables 1.4.2 iptables -V
openssl & libcrypto 1.0.0 openssl version
bc 1.06.95 bc --version
-Sphinx\ [#f1]_ 1.2 sphinx-build --version
+Sphinx\ [#f1]_ 1.3 sphinx-build --version
====================== =============== ========================================
.. [#f1] Sphinx is needed only to build the Kernel documentation
@@ -75,10 +75,9 @@ You will need GNU make 3.81 or later to build the kernel.
Binutils
--------
-Linux on IA-32 has recently switched from using ``as86`` to using ``gas`` for
-assembling the 16-bit boot code, removing the need for ``as86`` to compile
-your kernel. This change does, however, mean that you need a recent
-release of binutils.
+The build system has, as of 4.13, switched to using thin archives (`ar T`)
+rather than incremental linking (`ld -r`) for built-in.o intermediate steps.
+This requires binutils 2.20 or newer.
Perl
----
@@ -116,12 +115,11 @@ DevFS has been obsoleted in favour of udev
Linux documentation for functions is transitioning to inline
documentation via specially-formatted comments near their
-definitions in the source. These comments can be combined with the
-SGML templates in the Documentation/DocBook directory to make DocBook
-files, which can then be converted by DocBook stylesheets to PostScript,
-HTML, PDF files, and several other formats. In order to convert from
-DocBook format to a format of your choice, you'll need to install Jade as
-well as the desired DocBook stylesheets.
+definitions in the source. These comments can be combined with ReST
+files the Documentation/ directory to make enriched documentation, which can
+then be converted to PostScript, HTML, LaTex, ePUB and PDF files.
+In order to convert from ReST format to a format of your choice, you'll need
+Sphinx.
Util-linux
----------
@@ -311,24 +309,8 @@ Kernel documentation
Sphinx
------
-The ReST markups currently used by the Documentation/ files are meant to be
-built with ``Sphinx`` version 1.2 or upper. If you're desiring to build
-PDF outputs, it is recommended to use version 1.4.6.
-
-.. note::
-
- Please notice that, for PDF and LaTeX output, you'll also need ``XeLaTeX``
- version 3.14159265. Depending on the distribution, you may also need to
- install a series of ``texlive`` packages that provide the minimal set of
- functionalities required for ``XeLaTex`` to work. For PDF output you'll also
- need ``convert(1)`` from ImageMagick (https://www.imagemagick.org).
-
-Other tools
------------
-
-In order to produce documentation from DocBook, you'll also need ``xmlto``.
-Please notice, however, that we're currently migrating all documents to use
-``Sphinx``.
+Please see :ref:`sphinx_install` in ``Documentation/doc-guide/sphinx.rst``
+for details about Sphinx requirements.
Getting updated software
========================
@@ -409,15 +391,6 @@ Quota-tools
- <http://sourceforge.net/projects/linuxquota/>
-DocBook Stylesheets
--------------------
-
-- <http://sourceforge.net/projects/docbook/files/docbook-dsssl/>
-
-XMLTO XSLT Frontend
--------------------
-
-- <http://cyberelk.net/tim/xmlto/>
Intel P6 microcode
------------------
diff --git a/Documentation/process/coding-style.rst b/Documentation/process/coding-style.rst
index d20d52a4d812..a20b44a40ec4 100644
--- a/Documentation/process/coding-style.rst
+++ b/Documentation/process/coding-style.rst
@@ -980,8 +980,8 @@ do so, though, and doing so unnecessarily can limit optimization.
When writing a single inline assembly statement containing multiple
instructions, put each instruction on a separate line in a separate quoted
-string, and end each string except the last with \n\t to properly indent the
-next instruction in the assembly output:
+string, and end each string except the last with ``\n\t`` to properly indent
+the next instruction in the assembly output:
.. code-block:: c
diff --git a/Documentation/process/email-clients.rst b/Documentation/process/email-clients.rst
index ac892b30815e..07faa5457bcb 100644
--- a/Documentation/process/email-clients.rst
+++ b/Documentation/process/email-clients.rst
@@ -167,6 +167,11 @@ Lotus Notes (GUI)
Run away from it.
+IBM Verse (Web GUI)
+*******************
+
+See Lotus Notes.
+
Mutt (TUI)
**********
diff --git a/Documentation/process/howto.rst b/Documentation/process/howto.rst
index 1260f60d4cb9..c6875b1db56f 100644
--- a/Documentation/process/howto.rst
+++ b/Documentation/process/howto.rst
@@ -180,14 +180,6 @@ They can also be generated on LaTeX and ePub formats with::
make latexdocs
make epubdocs
-Currently, there are some documents written on DocBook that are in
-the process of conversion to ReST. Such documents will be created in the
-Documentation/DocBook/ directory and can be generated also as
-Postscript or man pages by running::
-
- make psdocs
- make mandocs
-
Becoming A Kernel Developer
---------------------------
diff --git a/Documentation/process/index.rst b/Documentation/process/index.rst
index 82fc399fcd33..61e43cc3ed17 100644
--- a/Documentation/process/index.rst
+++ b/Documentation/process/index.rst
@@ -25,6 +25,7 @@ Below are the essential guides that every developer should read.
submitting-patches
coding-style
email-clients
+ kernel-enforcement-statement
Other guides to the community that are of interest to most developers are:
diff --git a/Documentation/process/kernel-docs.rst b/Documentation/process/kernel-docs.rst
index 05a7857a4a83..b8cac85a4001 100644
--- a/Documentation/process/kernel-docs.rst
+++ b/Documentation/process/kernel-docs.rst
@@ -40,50 +40,18 @@ Enjoy!
Docs at the Linux Kernel tree
-----------------------------
-The DocBook books should be built with ``make {htmldocs | psdocs | pdfdocs}``.
The Sphinx books should be built with ``make {htmldocs | pdfdocs | epubdocs}``.
* Name: **linux/Documentation**
:Author: Many.
:Location: Documentation/
- :Keywords: text files, Sphinx, DocBook.
+ :Keywords: text files, Sphinx.
:Description: Documentation that comes with the kernel sources,
inside the Documentation directory. Some pages from this document
(including this document itself) have been moved there, and might
be more up to date than the web version.
- * Title: **The Kernel Hacking HOWTO**
-
- :Author: Various Talented People, and Rusty.
- :Location: Documentation/DocBook/kernel-hacking.tmpl
- :Keywords: HOWTO, kernel contexts, deadlock, locking, modules,
- symbols, return conventions.
- :Description: From the Introduction: "Please understand that I
- never wanted to write this document, being grossly underqualified,
- but I always wanted to read it, and this was the only way. I
- simply explain some best practices, and give reading entry-points
- into the kernel sources. I avoid implementation details: that's
- what the code is for, and I ignore whole tracts of useful
- routines. This document assumes familiarity with C, and an
- understanding of what the kernel is, and how it is used. It was
- originally written for the 2.3 kernels, but nearly all of it
- applies to 2.2 too; 2.0 is slightly different".
-
- * Title: **Linux Kernel Locking HOWTO**
-
- :Author: Various Talented People, and Rusty.
- :Location: Documentation/DocBook/kernel-locking.tmpl
- :Keywords: locks, locking, spinlock, semaphore, atomic, race
- condition, bottom halves, tasklets, softirqs.
- :Description: The title says it all: document describing the
- locking system in the Linux Kernel either in uniprocessor or SMP
- systems.
- :Notes: "It was originally written for the later (>2.3.47) 2.3
- kernels, but most of it applies to 2.2 too; 2.0 is slightly
- different". Freely redistributable under the conditions of the GNU
- General Public License.
-
On-line docs
------------
diff --git a/Documentation/process/kernel-enforcement-statement.rst b/Documentation/process/kernel-enforcement-statement.rst
new file mode 100644
index 000000000000..1e23d4227337
--- /dev/null
+++ b/Documentation/process/kernel-enforcement-statement.rst
@@ -0,0 +1,147 @@
+Linux Kernel Enforcement Statement
+----------------------------------
+
+As developers of the Linux kernel, we have a keen interest in how our software
+is used and how the license for our software is enforced. Compliance with the
+reciprocal sharing obligations of GPL-2.0 is critical to the long-term
+sustainability of our software and community.
+
+Although there is a right to enforce the separate copyright interests in the
+contributions made to our community, we share an interest in ensuring that
+individual enforcement actions are conducted in a manner that benefits our
+community and do not have an unintended negative impact on the health and
+growth of our software ecosystem. In order to deter unhelpful enforcement
+actions, we agree that it is in the best interests of our development
+community to undertake the following commitment to users of the Linux kernel
+on behalf of ourselves and any successors to our copyright interests:
+
+ Notwithstanding the termination provisions of the GPL-2.0, we agree that
+ it is in the best interests of our development community to adopt the
+ following provisions of GPL-3.0 as additional permissions under our
+ license with respect to any non-defensive assertion of rights under the
+ license.
+
+ However, if you cease all violation of this License, then your license
+ from a particular copyright holder is reinstated (a) provisionally,
+ unless and until the copyright holder explicitly and finally
+ terminates your license, and (b) permanently, if the copyright holder
+ fails to notify you of the violation by some reasonable means prior to
+ 60 days after the cessation.
+
+ Moreover, your license from a particular copyright holder is
+ reinstated permanently if the copyright holder notifies you of the
+ violation by some reasonable means, this is the first time you have
+ received notice of violation of this License (for any work) from that
+ copyright holder, and you cure the violation prior to 30 days after
+ your receipt of the notice.
+
+Our intent in providing these assurances is to encourage more use of the
+software. We want companies and individuals to use, modify and distribute
+this software. We want to work with users in an open and transparent way to
+eliminate any uncertainty about our expectations regarding compliance or
+enforcement that might limit adoption of our software. We view legal action
+as a last resort, to be initiated only when other community efforts have
+failed to resolve the problem.
+
+Finally, once a non-compliance issue is resolved, we hope the user will feel
+welcome to join us in our efforts on this project. Working together, we will
+be stronger.
+
+Except where noted below, we speak only for ourselves, and not for any company
+we might work for today, have in the past, or will in the future.
+
+ - Bjorn Andersson (Linaro)
+ - Andrea Arcangeli (Red Hat)
+ - Neil Armstrong
+ - Jens Axboe
+ - Pablo Neira Ayuso
+ - Khalid Aziz
+ - Ralf Baechle
+ - Felipe Balbi
+ - Arnd Bergmann
+ - Ard Biesheuvel
+ - Paolo Bonzini (Red Hat)
+ - Christian Borntraeger
+ - Mark Brown (Linaro)
+ - Paul Burton
+ - Javier Martinez Canillas
+ - Rob Clark
+ - Jonathan Corbet
+ - Vivien Didelot (Savoir-faire Linux)
+ - Hans de Goede (Red Hat)
+ - Mel Gorman (SUSE)
+ - Sven Eckelmann
+ - Alex Elder (Linaro)
+ - Fabio Estevam
+ - Larry Finger
+ - Bhumika Goyal
+ - Andy Gross
+ - Juergen Gross
+ - Shawn Guo
+ - Ulf Hansson
+ - Tejun Heo
+ - Rob Herring
+ - Masami Hiramatsu
+ - Michal Hocko
+ - Simon Horman
+ - Johan Hovold (Hovold Consulting AB)
+ - Christophe JAILLET
+ - Olof Johansson
+ - Lee Jones (Linaro)
+ - Heiner Kallweit
+ - Srinivas Kandagatla
+ - Jan Kara
+ - Shuah Khan (Samsung)
+ - David Kershner
+ - Jaegeuk Kim
+ - Namhyung Kim
+ - Colin Ian King
+ - Jeff Kirsher
+ - Greg Kroah-Hartman (Linux Foundation)
+ - Christian König
+ - Vinod Koul
+ - Krzysztof Kozlowski
+ - Viresh Kumar
+ - Aneesh Kumar K.V
+ - Julia Lawall
+ - Doug Ledford (Red Hat)
+ - Chuck Lever (Oracle)
+ - Daniel Lezcano
+ - Shaohua Li
+ - Xin Long (Red Hat)
+ - Tony Luck
+ - Mike Marshall
+ - Chris Mason
+ - Paul E. McKenney
+ - David S. Miller
+ - Ingo Molnar
+ - Kuninori Morimoto
+ - Borislav Petkov
+ - Jiri Pirko
+ - Josh Poimboeuf
+ - Sebastian Reichel (Collabora)
+ - Guenter Roeck
+ - Joerg Roedel
+ - Leon Romanovsky
+ - Steven Rostedt (VMware)
+ - Ivan Safonov
+ - Ivan Safonov
+ - Anna Schumaker
+ - Jes Sorensen
+ - K.Y. Srinivasan
+ - Heiko Stuebner
+ - Jiri Kosina (SUSE)
+ - Dmitry Torokhov
+ - Linus Torvalds
+ - Thierry Reding
+ - Rik van Riel
+ - Geert Uytterhoeven (Glider bvba)
+ - Daniel Vetter
+ - Linus Walleij
+ - Richard Weinberger
+ - Dan Williams
+ - Rafael J. Wysocki
+ - Arvind Yadav
+ - Masahiro Yamada
+ - Wei Yongjun
+ - Lv Zheng
diff --git a/Documentation/process/stable-kernel-rules.rst b/Documentation/process/stable-kernel-rules.rst
index 61e9c78bd6d1..36a2dded525b 100644
--- a/Documentation/process/stable-kernel-rules.rst
+++ b/Documentation/process/stable-kernel-rules.rst
@@ -166,12 +166,12 @@ Trees
- The queues of patches, for both completed versions and in progress
versions can be found at:
- http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git
+ https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git
- The finalized and tagged releases of all stable kernels can be found
in separate branches per version at:
- http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git
+ https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
Review committee
diff --git a/Documentation/process/submitting-patches.rst b/Documentation/process/submitting-patches.rst
index 3e10719fee35..733478ade91b 100644
--- a/Documentation/process/submitting-patches.rst
+++ b/Documentation/process/submitting-patches.rst
@@ -413,7 +413,7 @@ e-mail discussions.
-11) Sign your work — the Developer's Certificate of Origin
+11) Sign your work - the Developer's Certificate of Origin
----------------------------------------------------------
To improve tracking of who did what, especially with patches that can
diff --git a/Documentation/pwm.txt b/Documentation/pwm.txt
index 789b27c6ec99..8fbf0aa3ba2d 100644
--- a/Documentation/pwm.txt
+++ b/Documentation/pwm.txt
@@ -1,4 +1,6 @@
+======================================
Pulse Width Modulation (PWM) interface
+======================================
This provides an overview about the Linux PWM interface
@@ -16,7 +18,7 @@ Users of the legacy PWM API use unique IDs to refer to PWM devices.
Instead of referring to a PWM device via its unique ID, board setup code
should instead register a static mapping that can be used to match PWM
-consumers to providers, as given in the following example:
+consumers to providers, as given in the following example::
static struct pwm_lookup board_pwm_lookup[] = {
PWM_LOOKUP("tegra-pwm", 0, "pwm-backlight", NULL,
@@ -40,9 +42,9 @@ New users should use the pwm_get() function and pass to it the consumer
device or a consumer name. pwm_put() is used to free the PWM device. Managed
variants of these functions, devm_pwm_get() and devm_pwm_put(), also exist.
-After being requested, a PWM has to be configured using:
+After being requested, a PWM has to be configured using::
-int pwm_apply_state(struct pwm_device *pwm, struct pwm_state *state);
+ int pwm_apply_state(struct pwm_device *pwm, struct pwm_state *state);
This API controls both the PWM period/duty_cycle config and the
enable/disable state.
@@ -72,11 +74,14 @@ interface is provided to use the PWMs from userspace. It is exposed at
pwmchipN, where N is the base of the PWM chip. Inside the directory you
will find:
-npwm - The number of PWM channels this chip supports (read-only).
+ npwm
+ The number of PWM channels this chip supports (read-only).
-export - Exports a PWM channel for use with sysfs (write-only).
+ export
+ Exports a PWM channel for use with sysfs (write-only).
-unexport - Unexports a PWM channel from sysfs (write-only).
+ unexport
+ Unexports a PWM channel from sysfs (write-only).
The PWM channels are numbered using a per-chip index from 0 to npwm-1.
@@ -84,21 +89,26 @@ When a PWM channel is exported a pwmX directory will be created in the
pwmchipN directory it is associated with, where X is the number of the
channel that was exported. The following properties will then be available:
-period - The total period of the PWM signal (read/write).
- Value is in nanoseconds and is the sum of the active and inactive
- time of the PWM.
+ period
+ The total period of the PWM signal (read/write).
+ Value is in nanoseconds and is the sum of the active and inactive
+ time of the PWM.
-duty_cycle - The active time of the PWM signal (read/write).
- Value is in nanoseconds and must be less than the period.
+ duty_cycle
+ The active time of the PWM signal (read/write).
+ Value is in nanoseconds and must be less than the period.
-polarity - Changes the polarity of the PWM signal (read/write).
- Writes to this property only work if the PWM chip supports changing
- the polarity. The polarity can only be changed if the PWM is not
- enabled. Value is the string "normal" or "inversed".
+ polarity
+ Changes the polarity of the PWM signal (read/write).
+ Writes to this property only work if the PWM chip supports changing
+ the polarity. The polarity can only be changed if the PWM is not
+ enabled. Value is the string "normal" or "inversed".
-enable - Enable/disable the PWM signal (read/write).
- 0 - disabled
- 1 - enabled
+ enable
+ Enable/disable the PWM signal (read/write).
+
+ - 0 - disabled
+ - 1 - enabled
Implementing a PWM driver
-------------------------
diff --git a/Documentation/rbtree.txt b/Documentation/rbtree.txt
index b9d9cc57be18..c42a21b99046 100644
--- a/Documentation/rbtree.txt
+++ b/Documentation/rbtree.txt
@@ -1,7 +1,10 @@
+=================================
Red-black Trees (rbtree) in Linux
-January 18, 2007
-Rob Landley <rob@landley.net>
-=============================
+=================================
+
+
+:Date: January 18, 2007
+:Author: Rob Landley <rob@landley.net>
What are red-black trees, and what are they for?
------------------------------------------------
@@ -56,7 +59,7 @@ user of the rbtree code.
Creating a new rbtree
---------------------
-Data nodes in an rbtree tree are structures containing a struct rb_node member:
+Data nodes in an rbtree tree are structures containing a struct rb_node member::
struct mytype {
struct rb_node node;
@@ -78,7 +81,7 @@ Searching for a value in an rbtree
Writing a search function for your tree is fairly straightforward: start at the
root, compare each value, and follow the left or right branch as necessary.
-Example:
+Example::
struct mytype *my_search(struct rb_root *root, char *string)
{
@@ -110,7 +113,7 @@ The search for insertion differs from the previous search by finding the
location of the pointer on which to graft the new node. The new node also
needs a link to its parent node for rebalancing purposes.
-Example:
+Example::
int my_insert(struct rb_root *root, struct mytype *data)
{
@@ -140,11 +143,11 @@ Example:
Removing or replacing existing data in an rbtree
------------------------------------------------
-To remove an existing node from a tree, call:
+To remove an existing node from a tree, call::
void rb_erase(struct rb_node *victim, struct rb_root *tree);
-Example:
+Example::
struct mytype *data = mysearch(&mytree, "walrus");
@@ -153,7 +156,7 @@ Example:
myfree(data);
}
-To replace an existing node in a tree with a new one with the same key, call:
+To replace an existing node in a tree with a new one with the same key, call::
void rb_replace_node(struct rb_node *old, struct rb_node *new,
struct rb_root *tree);
@@ -166,7 +169,7 @@ Iterating through the elements stored in an rbtree (in sort order)
Four functions are provided for iterating through an rbtree's contents in
sorted order. These work on arbitrary trees, and should not need to be
-modified or wrapped (except for locking purposes):
+modified or wrapped (except for locking purposes)::
struct rb_node *rb_first(struct rb_root *tree);
struct rb_node *rb_last(struct rb_root *tree);
@@ -184,12 +187,45 @@ which the containing data structure may be accessed with the container_of()
macro, and individual members may be accessed directly via
rb_entry(node, type, member).
-Example:
+Example::
struct rb_node *node;
for (node = rb_first(&mytree); node; node = rb_next(node))
printk("key=%s\n", rb_entry(node, struct mytype, node)->keystring);
+Cached rbtrees
+--------------
+
+Computing the leftmost (smallest) node is quite a common task for binary
+search trees, such as for traversals or users relying on a the particular
+order for their own logic. To this end, users can use 'struct rb_root_cached'
+to optimize O(logN) rb_first() calls to a simple pointer fetch avoiding
+potentially expensive tree iterations. This is done at negligible runtime
+overhead for maintanence; albeit larger memory footprint.
+
+Similar to the rb_root structure, cached rbtrees are initialized to be
+empty via:
+
+ struct rb_root_cached mytree = RB_ROOT_CACHED;
+
+Cached rbtree is simply a regular rb_root with an extra pointer to cache the
+leftmost node. This allows rb_root_cached to exist wherever rb_root does,
+which permits augmented trees to be supported as well as only a few extra
+interfaces:
+
+ struct rb_node *rb_first_cached(struct rb_root_cached *tree);
+ void rb_insert_color_cached(struct rb_node *, struct rb_root_cached *, bool);
+ void rb_erase_cached(struct rb_node *node, struct rb_root_cached *);
+
+Both insert and erase calls have their respective counterpart of augmented
+trees:
+
+ void rb_insert_augmented_cached(struct rb_node *node, struct rb_root_cached *,
+ bool, struct rb_augment_callbacks *);
+ void rb_erase_augmented_cached(struct rb_node *, struct rb_root_cached *,
+ struct rb_augment_callbacks *);
+
+
Support for Augmented rbtrees
-----------------------------
@@ -241,7 +277,8 @@ user should have a single rb_erase_augmented() call site in order to limit
compiled code size.
-Sample usage:
+Sample usage
+^^^^^^^^^^^^
Interval tree is an example of augmented rb tree. Reference -
"Introduction to Algorithms" by Cormen, Leiserson, Rivest and Stein.
@@ -259,12 +296,12 @@ This "extra information" stored in each node is the maximum hi
information can be maintained at each node just be looking at the node
and its immediate children. And this will be used in O(log n) lookup
for lowest match (lowest start address among all possible matches)
-with something like:
+with something like::
-struct interval_tree_node *
-interval_tree_first_match(struct rb_root *root,
- unsigned long start, unsigned long last)
-{
+ struct interval_tree_node *
+ interval_tree_first_match(struct rb_root *root,
+ unsigned long start, unsigned long last)
+ {
struct interval_tree_node *node;
if (!root->rb_node)
@@ -301,13 +338,13 @@ interval_tree_first_match(struct rb_root *root,
}
return NULL; /* No match */
}
-}
+ }
-Insertion/removal are defined using the following augmented callbacks:
+Insertion/removal are defined using the following augmented callbacks::
-static inline unsigned long
-compute_subtree_last(struct interval_tree_node *node)
-{
+ static inline unsigned long
+ compute_subtree_last(struct interval_tree_node *node)
+ {
unsigned long max = node->last, subtree_last;
if (node->rb.rb_left) {
subtree_last = rb_entry(node->rb.rb_left,
@@ -322,10 +359,10 @@ compute_subtree_last(struct interval_tree_node *node)
max = subtree_last;
}
return max;
-}
+ }
-static void augment_propagate(struct rb_node *rb, struct rb_node *stop)
-{
+ static void augment_propagate(struct rb_node *rb, struct rb_node *stop)
+ {
while (rb != stop) {
struct interval_tree_node *node =
rb_entry(rb, struct interval_tree_node, rb);
@@ -335,20 +372,20 @@ static void augment_propagate(struct rb_node *rb, struct rb_node *stop)
node->__subtree_last = subtree_last;
rb = rb_parent(&node->rb);
}
-}
+ }
-static void augment_copy(struct rb_node *rb_old, struct rb_node *rb_new)
-{
+ static void augment_copy(struct rb_node *rb_old, struct rb_node *rb_new)
+ {
struct interval_tree_node *old =
rb_entry(rb_old, struct interval_tree_node, rb);
struct interval_tree_node *new =
rb_entry(rb_new, struct interval_tree_node, rb);
new->__subtree_last = old->__subtree_last;
-}
+ }
-static void augment_rotate(struct rb_node *rb_old, struct rb_node *rb_new)
-{
+ static void augment_rotate(struct rb_node *rb_old, struct rb_node *rb_new)
+ {
struct interval_tree_node *old =
rb_entry(rb_old, struct interval_tree_node, rb);
struct interval_tree_node *new =
@@ -356,15 +393,15 @@ static void augment_rotate(struct rb_node *rb_old, struct rb_node *rb_new)
new->__subtree_last = old->__subtree_last;
old->__subtree_last = compute_subtree_last(old);
-}
+ }
-static const struct rb_augment_callbacks augment_callbacks = {
+ static const struct rb_augment_callbacks augment_callbacks = {
augment_propagate, augment_copy, augment_rotate
-};
+ };
-void interval_tree_insert(struct interval_tree_node *node,
- struct rb_root *root)
-{
+ void interval_tree_insert(struct interval_tree_node *node,
+ struct rb_root *root)
+ {
struct rb_node **link = &root->rb_node, *rb_parent = NULL;
unsigned long start = node->start, last = node->last;
struct interval_tree_node *parent;
@@ -383,10 +420,10 @@ void interval_tree_insert(struct interval_tree_node *node,
node->__subtree_last = last;
rb_link_node(&node->rb, rb_parent, link);
rb_insert_augmented(&node->rb, root, &augment_callbacks);
-}
+ }
-void interval_tree_remove(struct interval_tree_node *node,
- struct rb_root *root)
-{
+ void interval_tree_remove(struct interval_tree_node *node,
+ struct rb_root *root)
+ {
rb_erase_augmented(&node->rb, root, &augment_callbacks);
-}
+ }
diff --git a/Documentation/remoteproc.txt b/Documentation/remoteproc.txt
index f07597482351..77fb03acdbb4 100644
--- a/Documentation/remoteproc.txt
+++ b/Documentation/remoteproc.txt
@@ -1,6 +1,9 @@
+==========================
Remote Processor Framework
+==========================
-1. Introduction
+Introduction
+============
Modern SoCs typically have heterogeneous remote processor devices in asymmetric
multiprocessing (AMP) configurations, which may be running different instances
@@ -26,44 +29,62 @@ remoteproc will add those devices. This makes it possible to reuse the
existing virtio drivers with remote processor backends at a minimal development
cost.
-2. User API
+User API
+========
+
+::
int rproc_boot(struct rproc *rproc)
- - Boot a remote processor (i.e. load its firmware, power it on, ...).
- If the remote processor is already powered on, this function immediately
- returns (successfully).
- Returns 0 on success, and an appropriate error value otherwise.
- Note: to use this function you should already have a valid rproc
- handle. There are several ways to achieve that cleanly (devres, pdata,
- the way remoteproc_rpmsg.c does this, or, if this becomes prevalent, we
- might also consider using dev_archdata for this).
+
+Boot a remote processor (i.e. load its firmware, power it on, ...).
+
+If the remote processor is already powered on, this function immediately
+returns (successfully).
+
+Returns 0 on success, and an appropriate error value otherwise.
+Note: to use this function you should already have a valid rproc
+handle. There are several ways to achieve that cleanly (devres, pdata,
+the way remoteproc_rpmsg.c does this, or, if this becomes prevalent, we
+might also consider using dev_archdata for this).
+
+::
void rproc_shutdown(struct rproc *rproc)
- - Power off a remote processor (previously booted with rproc_boot()).
- In case @rproc is still being used by an additional user(s), then
- this function will just decrement the power refcount and exit,
- without really powering off the device.
- Every call to rproc_boot() must (eventually) be accompanied by a call
- to rproc_shutdown(). Calling rproc_shutdown() redundantly is a bug.
- Notes:
- - we're not decrementing the rproc's refcount, only the power refcount.
- which means that the @rproc handle stays valid even after
- rproc_shutdown() returns, and users can still use it with a subsequent
- rproc_boot(), if needed.
+
+Power off a remote processor (previously booted with rproc_boot()).
+In case @rproc is still being used by an additional user(s), then
+this function will just decrement the power refcount and exit,
+without really powering off the device.
+
+Every call to rproc_boot() must (eventually) be accompanied by a call
+to rproc_shutdown(). Calling rproc_shutdown() redundantly is a bug.
+
+.. note::
+
+ we're not decrementing the rproc's refcount, only the power refcount.
+ which means that the @rproc handle stays valid even after
+ rproc_shutdown() returns, and users can still use it with a subsequent
+ rproc_boot(), if needed.
+
+::
struct rproc *rproc_get_by_phandle(phandle phandle)
- - Find an rproc handle using a device tree phandle. Returns the rproc
- handle on success, and NULL on failure. This function increments
- the remote processor's refcount, so always use rproc_put() to
- decrement it back once rproc isn't needed anymore.
-3. Typical usage
+Find an rproc handle using a device tree phandle. Returns the rproc
+handle on success, and NULL on failure. This function increments
+the remote processor's refcount, so always use rproc_put() to
+decrement it back once rproc isn't needed anymore.
+
+Typical usage
+=============
-#include <linux/remoteproc.h>
+::
-/* in case we were given a valid 'rproc' handle */
-int dummy_rproc_example(struct rproc *my_rproc)
-{
+ #include <linux/remoteproc.h>
+
+ /* in case we were given a valid 'rproc' handle */
+ int dummy_rproc_example(struct rproc *my_rproc)
+ {
int ret;
/* let's power on and boot our remote processor */
@@ -80,84 +101,111 @@ int dummy_rproc_example(struct rproc *my_rproc)
/* let's shut it down now */
rproc_shutdown(my_rproc);
-}
+ }
+
+API for implementors
+====================
-4. API for implementors
+::
struct rproc *rproc_alloc(struct device *dev, const char *name,
const struct rproc_ops *ops,
const char *firmware, int len)
- - Allocate a new remote processor handle, but don't register
- it yet. Required parameters are the underlying device, the
- name of this remote processor, platform-specific ops handlers,
- the name of the firmware to boot this rproc with, and the
- length of private data needed by the allocating rproc driver (in bytes).
-
- This function should be used by rproc implementations during
- initialization of the remote processor.
- After creating an rproc handle using this function, and when ready,
- implementations should then call rproc_add() to complete
- the registration of the remote processor.
- On success, the new rproc is returned, and on failure, NULL.
-
- Note: _never_ directly deallocate @rproc, even if it was not registered
- yet. Instead, when you need to unroll rproc_alloc(), use rproc_free().
+
+Allocate a new remote processor handle, but don't register
+it yet. Required parameters are the underlying device, the
+name of this remote processor, platform-specific ops handlers,
+the name of the firmware to boot this rproc with, and the
+length of private data needed by the allocating rproc driver (in bytes).
+
+This function should be used by rproc implementations during
+initialization of the remote processor.
+
+After creating an rproc handle using this function, and when ready,
+implementations should then call rproc_add() to complete
+the registration of the remote processor.
+
+On success, the new rproc is returned, and on failure, NULL.
+
+.. note::
+
+ **never** directly deallocate @rproc, even if it was not registered
+ yet. Instead, when you need to unroll rproc_alloc(), use rproc_free().
+
+::
void rproc_free(struct rproc *rproc)
- - Free an rproc handle that was allocated by rproc_alloc.
- This function essentially unrolls rproc_alloc(), by decrementing the
- rproc's refcount. It doesn't directly free rproc; that would happen
- only if there are no other references to rproc and its refcount now
- dropped to zero.
+
+Free an rproc handle that was allocated by rproc_alloc.
+
+This function essentially unrolls rproc_alloc(), by decrementing the
+rproc's refcount. It doesn't directly free rproc; that would happen
+only if there are no other references to rproc and its refcount now
+dropped to zero.
+
+::
int rproc_add(struct rproc *rproc)
- - Register @rproc with the remoteproc framework, after it has been
- allocated with rproc_alloc().
- This is called by the platform-specific rproc implementation, whenever
- a new remote processor device is probed.
- Returns 0 on success and an appropriate error code otherwise.
- Note: this function initiates an asynchronous firmware loading
- context, which will look for virtio devices supported by the rproc's
- firmware.
- If found, those virtio devices will be created and added, so as a result
- of registering this remote processor, additional virtio drivers might get
- probed.
+
+Register @rproc with the remoteproc framework, after it has been
+allocated with rproc_alloc().
+
+This is called by the platform-specific rproc implementation, whenever
+a new remote processor device is probed.
+
+Returns 0 on success and an appropriate error code otherwise.
+Note: this function initiates an asynchronous firmware loading
+context, which will look for virtio devices supported by the rproc's
+firmware.
+
+If found, those virtio devices will be created and added, so as a result
+of registering this remote processor, additional virtio drivers might get
+probed.
+
+::
int rproc_del(struct rproc *rproc)
- - Unroll rproc_add().
- This function should be called when the platform specific rproc
- implementation decides to remove the rproc device. it should
- _only_ be called if a previous invocation of rproc_add()
- has completed successfully.
- After rproc_del() returns, @rproc is still valid, and its
- last refcount should be decremented by calling rproc_free().
+Unroll rproc_add().
+
+This function should be called when the platform specific rproc
+implementation decides to remove the rproc device. it should
+_only_ be called if a previous invocation of rproc_add()
+has completed successfully.
- Returns 0 on success and -EINVAL if @rproc isn't valid.
+After rproc_del() returns, @rproc is still valid, and its
+last refcount should be decremented by calling rproc_free().
+
+Returns 0 on success and -EINVAL if @rproc isn't valid.
+
+::
void rproc_report_crash(struct rproc *rproc, enum rproc_crash_type type)
- - Report a crash in a remoteproc
- This function must be called every time a crash is detected by the
- platform specific rproc implementation. This should not be called from a
- non-remoteproc driver. This function can be called from atomic/interrupt
- context.
-5. Implementation callbacks
+Report a crash in a remoteproc
+
+This function must be called every time a crash is detected by the
+platform specific rproc implementation. This should not be called from a
+non-remoteproc driver. This function can be called from atomic/interrupt
+context.
+
+Implementation callbacks
+========================
These callbacks should be provided by platform-specific remoteproc
-drivers:
-
-/**
- * struct rproc_ops - platform-specific device handlers
- * @start: power on the device and boot it
- * @stop: power off the device
- * @kick: kick a virtqueue (virtqueue id given as a parameter)
- */
-struct rproc_ops {
+drivers::
+
+ /**
+ * struct rproc_ops - platform-specific device handlers
+ * @start: power on the device and boot it
+ * @stop: power off the device
+ * @kick: kick a virtqueue (virtqueue id given as a parameter)
+ */
+ struct rproc_ops {
int (*start)(struct rproc *rproc);
int (*stop)(struct rproc *rproc);
void (*kick)(struct rproc *rproc, int vqid);
-};
+ };
Every remoteproc implementation should at least provide the ->start and ->stop
handlers. If rpmsg/virtio functionality is also desired, then the ->kick handler
@@ -179,7 +227,8 @@ the exact virtqueue index to look in is optional: it is easy (and not
too expensive) to go through the existing virtqueues and look for new buffers
in the used rings.
-6. Binary Firmware Structure
+Binary Firmware Structure
+=========================
At this point remoteproc only supports ELF32 firmware binaries. However,
it is quite expected that other platforms/devices which we'd want to
@@ -207,43 +256,43 @@ resource entries that publish the existence of supported features
or configurations by the remote processor, such as trace buffers and
supported virtio devices (and their configurations).
-The resource table begins with this header:
-
-/**
- * struct resource_table - firmware resource table header
- * @ver: version number
- * @num: number of resource entries
- * @reserved: reserved (must be zero)
- * @offset: array of offsets pointing at the various resource entries
- *
- * The header of the resource table, as expressed by this structure,
- * contains a version number (should we need to change this format in the
- * future), the number of available resource entries, and their offsets
- * in the table.
- */
-struct resource_table {
+The resource table begins with this header::
+
+ /**
+ * struct resource_table - firmware resource table header
+ * @ver: version number
+ * @num: number of resource entries
+ * @reserved: reserved (must be zero)
+ * @offset: array of offsets pointing at the various resource entries
+ *
+ * The header of the resource table, as expressed by this structure,
+ * contains a version number (should we need to change this format in the
+ * future), the number of available resource entries, and their offsets
+ * in the table.
+ */
+ struct resource_table {
u32 ver;
u32 num;
u32 reserved[2];
u32 offset[0];
-} __packed;
+ } __packed;
Immediately following this header are the resource entries themselves,
-each of which begins with the following resource entry header:
-
-/**
- * struct fw_rsc_hdr - firmware resource entry header
- * @type: resource type
- * @data: resource data
- *
- * Every resource entry begins with a 'struct fw_rsc_hdr' header providing
- * its @type. The content of the entry itself will immediately follow
- * this header, and it should be parsed according to the resource type.
- */
-struct fw_rsc_hdr {
+each of which begins with the following resource entry header::
+
+ /**
+ * struct fw_rsc_hdr - firmware resource entry header
+ * @type: resource type
+ * @data: resource data
+ *
+ * Every resource entry begins with a 'struct fw_rsc_hdr' header providing
+ * its @type. The content of the entry itself will immediately follow
+ * this header, and it should be parsed according to the resource type.
+ */
+ struct fw_rsc_hdr {
u32 type;
u8 data[0];
-} __packed;
+ } __packed;
Some resources entries are mere announcements, where the host is informed
of specific remoteproc configuration. Other entries require the host to
@@ -252,32 +301,32 @@ is expected, where the firmware requests a resource, and once allocated,
the host should provide back its details (e.g. address of an allocated
memory region).
-Here are the various resource types that are currently supported:
-
-/**
- * enum fw_resource_type - types of resource entries
- *
- * @RSC_CARVEOUT: request for allocation of a physically contiguous
- * memory region.
- * @RSC_DEVMEM: request to iommu_map a memory-based peripheral.
- * @RSC_TRACE: announces the availability of a trace buffer into which
- * the remote processor will be writing logs.
- * @RSC_VDEV: declare support for a virtio device, and serve as its
- * virtio header.
- * @RSC_LAST: just keep this one at the end
- *
- * Please note that these values are used as indices to the rproc_handle_rsc
- * lookup table, so please keep them sane. Moreover, @RSC_LAST is used to
- * check the validity of an index before the lookup table is accessed, so
- * please update it as needed.
- */
-enum fw_resource_type {
+Here are the various resource types that are currently supported::
+
+ /**
+ * enum fw_resource_type - types of resource entries
+ *
+ * @RSC_CARVEOUT: request for allocation of a physically contiguous
+ * memory region.
+ * @RSC_DEVMEM: request to iommu_map a memory-based peripheral.
+ * @RSC_TRACE: announces the availability of a trace buffer into which
+ * the remote processor will be writing logs.
+ * @RSC_VDEV: declare support for a virtio device, and serve as its
+ * virtio header.
+ * @RSC_LAST: just keep this one at the end
+ *
+ * Please note that these values are used as indices to the rproc_handle_rsc
+ * lookup table, so please keep them sane. Moreover, @RSC_LAST is used to
+ * check the validity of an index before the lookup table is accessed, so
+ * please update it as needed.
+ */
+ enum fw_resource_type {
RSC_CARVEOUT = 0,
RSC_DEVMEM = 1,
RSC_TRACE = 2,
RSC_VDEV = 3,
RSC_LAST = 4,
-};
+ };
For more details regarding a specific resource type, please see its
dedicated structure in include/linux/remoteproc.h.
@@ -286,7 +335,8 @@ We also expect that platform-specific resource entries will show up
at some point. When that happens, we could easily add a new RSC_PLATFORM
type, and hand those resources to the platform-specific rproc driver to handle.
-7. Virtio and remoteproc
+Virtio and remoteproc
+=====================
The firmware should provide remoteproc information about virtio devices
that it supports, and their configurations: a RSC_VDEV resource entry
diff --git a/Documentation/rfkill.txt b/Documentation/rfkill.txt
index 8c174063b3f0..a289285d2412 100644
--- a/Documentation/rfkill.txt
+++ b/Documentation/rfkill.txt
@@ -1,13 +1,13 @@
+===============================
rfkill - RF kill switch support
===============================
-1. Introduction
-2. Implementation details
-3. Kernel API
-4. Userspace support
+.. contents::
+ :depth: 2
-1. Introduction
+Introduction
+============
The rfkill subsystem provides a generic interface to disabling any radio
transmitter in the system. When a transmitter is blocked, it shall not
@@ -21,17 +21,24 @@ aircraft.
The rfkill subsystem has a concept of "hard" and "soft" block, which
differ little in their meaning (block == transmitters off) but rather in
whether they can be changed or not:
- - hard block: read-only radio block that cannot be overridden by software
- - soft block: writable radio block (need not be readable) that is set by
- the system software.
+
+ - hard block
+ read-only radio block that cannot be overridden by software
+
+ - soft block
+ writable radio block (need not be readable) that is set by
+ the system software.
The rfkill subsystem has two parameters, rfkill.default_state and
-rfkill.master_switch_mode, which are documented in admin-guide/kernel-parameters.rst.
+rfkill.master_switch_mode, which are documented in
+admin-guide/kernel-parameters.rst.
-2. Implementation details
+Implementation details
+======================
The rfkill subsystem is composed of three main components:
+
* the rfkill core,
* the deprecated rfkill-input module (an input layer handler, being
replaced by userspace policy code) and
@@ -55,7 +62,8 @@ use the return value of rfkill_set_hw_state() unless the hardware actually
keeps track of soft and hard block separately.
-3. Kernel API
+Kernel API
+==========
Drivers for radio transmitters normally implement an rfkill driver.
@@ -69,7 +77,7 @@ For some platforms, it is possible that the hardware state changes during
suspend/hibernation, in which case it will be necessary to update the rfkill
core with the current state is at resume time.
-To create an rfkill driver, driver's Kconfig needs to have
+To create an rfkill driver, driver's Kconfig needs to have::
depends on RFKILL || !RFKILL
@@ -87,7 +95,8 @@ RFKill provides per-switch LED triggers, which can be used to drive LEDs
according to the switch state (LED_FULL when blocked, LED_OFF otherwise).
-5. Userspace support
+Userspace support
+=================
The recommended userspace interface to use is /dev/rfkill, which is a misc
character device that allows userspace to obtain and set the state of rfkill
@@ -112,11 +121,11 @@ rfkill core framework.
Additionally, each rfkill device is registered in sysfs and emits uevents.
rfkill devices issue uevents (with an action of "change"), with the following
-environment variables set:
+environment variables set::
-RFKILL_NAME
-RFKILL_STATE
-RFKILL_TYPE
+ RFKILL_NAME
+ RFKILL_STATE
+ RFKILL_TYPE
The contents of these variables corresponds to the "name", "state" and
"type" sysfs files explained above.
diff --git a/Documentation/robust-futex-ABI.txt b/Documentation/robust-futex-ABI.txt
index 16eb314f56cc..8a5d34abf726 100644
--- a/Documentation/robust-futex-ABI.txt
+++ b/Documentation/robust-futex-ABI.txt
@@ -1,7 +1,9 @@
-Started by Paul Jackson <pj@sgi.com>
-
+====================
The robust futex ABI
---------------------
+====================
+
+:Author: Started by Paul Jackson <pj@sgi.com>
+
Robust_futexes provide a mechanism that is used in addition to normal
futexes, for kernel assist of cleanup of held locks on task exit.
@@ -32,7 +34,7 @@ probably causing deadlock or other such failure of the other threads
waiting on the same locks.
A thread that anticipates possibly using robust_futexes should first
-issue the system call:
+issue the system call::
asmlinkage long
sys_set_robust_list(struct robust_list_head __user *head, size_t len);
@@ -91,7 +93,7 @@ that lock using the futex mechanism.
When a thread has invoked the above system call to indicate it
anticipates using robust_futexes, the kernel stores the passed in 'head'
pointer for that task. The task may retrieve that value later on by
-using the system call:
+using the system call::
asmlinkage long
sys_get_robust_list(int pid, struct robust_list_head __user **head_ptr,
@@ -135,6 +137,7 @@ manipulating this list), the user code must observe the following
protocol on 'lock entry' insertion and removal:
On insertion:
+
1) set the 'list_op_pending' word to the address of the 'lock entry'
to be inserted,
2) acquire the futex lock,
@@ -143,6 +146,7 @@ On insertion:
4) clear the 'list_op_pending' word.
On removal:
+
1) set the 'list_op_pending' word to the address of the 'lock entry'
to be removed,
2) remove the lock entry for this lock from the 'head' list,
diff --git a/Documentation/robust-futexes.txt b/Documentation/robust-futexes.txt
index 61c22d608759..6c42c75103eb 100644
--- a/Documentation/robust-futexes.txt
+++ b/Documentation/robust-futexes.txt
@@ -1,4 +1,8 @@
-Started by: Ingo Molnar <mingo@redhat.com>
+========================================
+A description of what robust futexes are
+========================================
+
+:Started by: Ingo Molnar <mingo@redhat.com>
Background
----------
@@ -163,7 +167,7 @@ Implementation details
----------------------
The patch adds two new syscalls: one to register the userspace list, and
-one to query the registered list pointer:
+one to query the registered list pointer::
asmlinkage long
sys_set_robust_list(struct robust_list_head __user *head,
@@ -185,7 +189,7 @@ straightforward. The kernel doesn't have any internal distinction between
robust and normal futexes.
If a futex is found to be held at exit time, the kernel sets the
-following bit of the futex word:
+following bit of the futex word::
#define FUTEX_OWNER_DIED 0x40000000
@@ -193,7 +197,7 @@ and wakes up the next futex waiter (if any). User-space does the rest of
the cleanup.
Otherwise, robust futexes are acquired by glibc by putting the TID into
-the futex field atomically. Waiters set the FUTEX_WAITERS bit:
+the futex field atomically. Waiters set the FUTEX_WAITERS bit::
#define FUTEX_WAITERS 0x80000000
diff --git a/Documentation/rpmsg.txt b/Documentation/rpmsg.txt
index a95e36a43288..24b7a9e1a5f9 100644
--- a/Documentation/rpmsg.txt
+++ b/Documentation/rpmsg.txt
@@ -1,10 +1,15 @@
+============================================
Remote Processor Messaging (rpmsg) Framework
+============================================
-Note: this document describes the rpmsg bus and how to write rpmsg drivers.
-To learn how to add rpmsg support for new platforms, check out remoteproc.txt
-(also a resident of Documentation/).
+.. note::
-1. Introduction
+ This document describes the rpmsg bus and how to write rpmsg drivers.
+ To learn how to add rpmsg support for new platforms, check out remoteproc.txt
+ (also a resident of Documentation/).
+
+Introduction
+============
Modern SoCs typically employ heterogeneous remote processor devices in
asymmetric multiprocessing (AMP) configurations, which may be running
@@ -58,170 +63,222 @@ to their destination address (this is done by invoking the driver's rx handler
with the payload of the inbound message).
-2. User API
+User API
+========
+
+::
int rpmsg_send(struct rpmsg_channel *rpdev, void *data, int len);
- - sends a message across to the remote processor on a given channel.
- The caller should specify the channel, the data it wants to send,
- and its length (in bytes). The message will be sent on the specified
- channel, i.e. its source and destination address fields will be
- set to the channel's src and dst addresses.
-
- In case there are no TX buffers available, the function will block until
- one becomes available (i.e. until the remote processor consumes
- a tx buffer and puts it back on virtio's used descriptor ring),
- or a timeout of 15 seconds elapses. When the latter happens,
- -ERESTARTSYS is returned.
- The function can only be called from a process context (for now).
- Returns 0 on success and an appropriate error value on failure.
+
+sends a message across to the remote processor on a given channel.
+The caller should specify the channel, the data it wants to send,
+and its length (in bytes). The message will be sent on the specified
+channel, i.e. its source and destination address fields will be
+set to the channel's src and dst addresses.
+
+In case there are no TX buffers available, the function will block until
+one becomes available (i.e. until the remote processor consumes
+a tx buffer and puts it back on virtio's used descriptor ring),
+or a timeout of 15 seconds elapses. When the latter happens,
+-ERESTARTSYS is returned.
+
+The function can only be called from a process context (for now).
+Returns 0 on success and an appropriate error value on failure.
+
+::
int rpmsg_sendto(struct rpmsg_channel *rpdev, void *data, int len, u32 dst);
- - sends a message across to the remote processor on a given channel,
- to a destination address provided by the caller.
- The caller should specify the channel, the data it wants to send,
- its length (in bytes), and an explicit destination address.
- The message will then be sent to the remote processor to which the
- channel belongs, using the channel's src address, and the user-provided
- dst address (thus the channel's dst address will be ignored).
-
- In case there are no TX buffers available, the function will block until
- one becomes available (i.e. until the remote processor consumes
- a tx buffer and puts it back on virtio's used descriptor ring),
- or a timeout of 15 seconds elapses. When the latter happens,
- -ERESTARTSYS is returned.
- The function can only be called from a process context (for now).
- Returns 0 on success and an appropriate error value on failure.
+
+sends a message across to the remote processor on a given channel,
+to a destination address provided by the caller.
+
+The caller should specify the channel, the data it wants to send,
+its length (in bytes), and an explicit destination address.
+
+The message will then be sent to the remote processor to which the
+channel belongs, using the channel's src address, and the user-provided
+dst address (thus the channel's dst address will be ignored).
+
+In case there are no TX buffers available, the function will block until
+one becomes available (i.e. until the remote processor consumes
+a tx buffer and puts it back on virtio's used descriptor ring),
+or a timeout of 15 seconds elapses. When the latter happens,
+-ERESTARTSYS is returned.
+
+The function can only be called from a process context (for now).
+Returns 0 on success and an appropriate error value on failure.
+
+::
int rpmsg_send_offchannel(struct rpmsg_channel *rpdev, u32 src, u32 dst,
void *data, int len);
- - sends a message across to the remote processor, using the src and dst
- addresses provided by the user.
- The caller should specify the channel, the data it wants to send,
- its length (in bytes), and explicit source and destination addresses.
- The message will then be sent to the remote processor to which the
- channel belongs, but the channel's src and dst addresses will be
- ignored (and the user-provided addresses will be used instead).
-
- In case there are no TX buffers available, the function will block until
- one becomes available (i.e. until the remote processor consumes
- a tx buffer and puts it back on virtio's used descriptor ring),
- or a timeout of 15 seconds elapses. When the latter happens,
- -ERESTARTSYS is returned.
- The function can only be called from a process context (for now).
- Returns 0 on success and an appropriate error value on failure.
+
+
+sends a message across to the remote processor, using the src and dst
+addresses provided by the user.
+
+The caller should specify the channel, the data it wants to send,
+its length (in bytes), and explicit source and destination addresses.
+The message will then be sent to the remote processor to which the
+channel belongs, but the channel's src and dst addresses will be
+ignored (and the user-provided addresses will be used instead).
+
+In case there are no TX buffers available, the function will block until
+one becomes available (i.e. until the remote processor consumes
+a tx buffer and puts it back on virtio's used descriptor ring),
+or a timeout of 15 seconds elapses. When the latter happens,
+-ERESTARTSYS is returned.
+
+The function can only be called from a process context (for now).
+Returns 0 on success and an appropriate error value on failure.
+
+::
int rpmsg_trysend(struct rpmsg_channel *rpdev, void *data, int len);
- - sends a message across to the remote processor on a given channel.
- The caller should specify the channel, the data it wants to send,
- and its length (in bytes). The message will be sent on the specified
- channel, i.e. its source and destination address fields will be
- set to the channel's src and dst addresses.
- In case there are no TX buffers available, the function will immediately
- return -ENOMEM without waiting until one becomes available.
- The function can only be called from a process context (for now).
- Returns 0 on success and an appropriate error value on failure.
+sends a message across to the remote processor on a given channel.
+The caller should specify the channel, the data it wants to send,
+and its length (in bytes). The message will be sent on the specified
+channel, i.e. its source and destination address fields will be
+set to the channel's src and dst addresses.
+
+In case there are no TX buffers available, the function will immediately
+return -ENOMEM without waiting until one becomes available.
+
+The function can only be called from a process context (for now).
+Returns 0 on success and an appropriate error value on failure.
+
+::
int rpmsg_trysendto(struct rpmsg_channel *rpdev, void *data, int len, u32 dst)
- - sends a message across to the remote processor on a given channel,
- to a destination address provided by the user.
- The user should specify the channel, the data it wants to send,
- its length (in bytes), and an explicit destination address.
- The message will then be sent to the remote processor to which the
- channel belongs, using the channel's src address, and the user-provided
- dst address (thus the channel's dst address will be ignored).
-
- In case there are no TX buffers available, the function will immediately
- return -ENOMEM without waiting until one becomes available.
- The function can only be called from a process context (for now).
- Returns 0 on success and an appropriate error value on failure.
+
+
+sends a message across to the remote processor on a given channel,
+to a destination address provided by the user.
+
+The user should specify the channel, the data it wants to send,
+its length (in bytes), and an explicit destination address.
+
+The message will then be sent to the remote processor to which the
+channel belongs, using the channel's src address, and the user-provided
+dst address (thus the channel's dst address will be ignored).
+
+In case there are no TX buffers available, the function will immediately
+return -ENOMEM without waiting until one becomes available.
+
+The function can only be called from a process context (for now).
+Returns 0 on success and an appropriate error value on failure.
+
+::
int rpmsg_trysend_offchannel(struct rpmsg_channel *rpdev, u32 src, u32 dst,
void *data, int len);
- - sends a message across to the remote processor, using source and
- destination addresses provided by the user.
- The user should specify the channel, the data it wants to send,
- its length (in bytes), and explicit source and destination addresses.
- The message will then be sent to the remote processor to which the
- channel belongs, but the channel's src and dst addresses will be
- ignored (and the user-provided addresses will be used instead).
-
- In case there are no TX buffers available, the function will immediately
- return -ENOMEM without waiting until one becomes available.
- The function can only be called from a process context (for now).
- Returns 0 on success and an appropriate error value on failure.
+
+
+sends a message across to the remote processor, using source and
+destination addresses provided by the user.
+
+The user should specify the channel, the data it wants to send,
+its length (in bytes), and explicit source and destination addresses.
+The message will then be sent to the remote processor to which the
+channel belongs, but the channel's src and dst addresses will be
+ignored (and the user-provided addresses will be used instead).
+
+In case there are no TX buffers available, the function will immediately
+return -ENOMEM without waiting until one becomes available.
+
+The function can only be called from a process context (for now).
+Returns 0 on success and an appropriate error value on failure.
+
+::
struct rpmsg_endpoint *rpmsg_create_ept(struct rpmsg_channel *rpdev,
void (*cb)(struct rpmsg_channel *, void *, int, void *, u32),
void *priv, u32 addr);
- - every rpmsg address in the system is bound to an rx callback (so when
- inbound messages arrive, they are dispatched by the rpmsg bus using the
- appropriate callback handler) by means of an rpmsg_endpoint struct.
-
- This function allows drivers to create such an endpoint, and by that,
- bind a callback, and possibly some private data too, to an rpmsg address
- (either one that is known in advance, or one that will be dynamically
- assigned for them).
-
- Simple rpmsg drivers need not call rpmsg_create_ept, because an endpoint
- is already created for them when they are probed by the rpmsg bus
- (using the rx callback they provide when they registered to the rpmsg bus).
-
- So things should just work for simple drivers: they already have an
- endpoint, their rx callback is bound to their rpmsg address, and when
- relevant inbound messages arrive (i.e. messages which their dst address
- equals to the src address of their rpmsg channel), the driver's handler
- is invoked to process it.
-
- That said, more complicated drivers might do need to allocate
- additional rpmsg addresses, and bind them to different rx callbacks.
- To accomplish that, those drivers need to call this function.
- Drivers should provide their channel (so the new endpoint would bind
- to the same remote processor their channel belongs to), an rx callback
- function, an optional private data (which is provided back when the
- rx callback is invoked), and an address they want to bind with the
- callback. If addr is RPMSG_ADDR_ANY, then rpmsg_create_ept will
- dynamically assign them an available rpmsg address (drivers should have
- a very good reason why not to always use RPMSG_ADDR_ANY here).
-
- Returns a pointer to the endpoint on success, or NULL on error.
+
+every rpmsg address in the system is bound to an rx callback (so when
+inbound messages arrive, they are dispatched by the rpmsg bus using the
+appropriate callback handler) by means of an rpmsg_endpoint struct.
+
+This function allows drivers to create such an endpoint, and by that,
+bind a callback, and possibly some private data too, to an rpmsg address
+(either one that is known in advance, or one that will be dynamically
+assigned for them).
+
+Simple rpmsg drivers need not call rpmsg_create_ept, because an endpoint
+is already created for them when they are probed by the rpmsg bus
+(using the rx callback they provide when they registered to the rpmsg bus).
+
+So things should just work for simple drivers: they already have an
+endpoint, their rx callback is bound to their rpmsg address, and when
+relevant inbound messages arrive (i.e. messages which their dst address
+equals to the src address of their rpmsg channel), the driver's handler
+is invoked to process it.
+
+That said, more complicated drivers might do need to allocate
+additional rpmsg addresses, and bind them to different rx callbacks.
+To accomplish that, those drivers need to call this function.
+Drivers should provide their channel (so the new endpoint would bind
+to the same remote processor their channel belongs to), an rx callback
+function, an optional private data (which is provided back when the
+rx callback is invoked), and an address they want to bind with the
+callback. If addr is RPMSG_ADDR_ANY, then rpmsg_create_ept will
+dynamically assign them an available rpmsg address (drivers should have
+a very good reason why not to always use RPMSG_ADDR_ANY here).
+
+Returns a pointer to the endpoint on success, or NULL on error.
+
+::
void rpmsg_destroy_ept(struct rpmsg_endpoint *ept);
- - destroys an existing rpmsg endpoint. user should provide a pointer
- to an rpmsg endpoint that was previously created with rpmsg_create_ept().
+
+
+destroys an existing rpmsg endpoint. user should provide a pointer
+to an rpmsg endpoint that was previously created with rpmsg_create_ept().
+
+::
int register_rpmsg_driver(struct rpmsg_driver *rpdrv);
- - registers an rpmsg driver with the rpmsg bus. user should provide
- a pointer to an rpmsg_driver struct, which contains the driver's
- ->probe() and ->remove() functions, an rx callback, and an id_table
- specifying the names of the channels this driver is interested to
- be probed with.
+
+
+registers an rpmsg driver with the rpmsg bus. user should provide
+a pointer to an rpmsg_driver struct, which contains the driver's
+->probe() and ->remove() functions, an rx callback, and an id_table
+specifying the names of the channels this driver is interested to
+be probed with.
+
+::
void unregister_rpmsg_driver(struct rpmsg_driver *rpdrv);
- - unregisters an rpmsg driver from the rpmsg bus. user should provide
- a pointer to a previously-registered rpmsg_driver struct.
- Returns 0 on success, and an appropriate error value on failure.
-3. Typical usage
+unregisters an rpmsg driver from the rpmsg bus. user should provide
+a pointer to a previously-registered rpmsg_driver struct.
+Returns 0 on success, and an appropriate error value on failure.
+
+
+Typical usage
+=============
The following is a simple rpmsg driver, that sends an "hello!" message
on probe(), and whenever it receives an incoming message, it dumps its
content to the console.
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/rpmsg.h>
+::
+
+ #include <linux/kernel.h>
+ #include <linux/module.h>
+ #include <linux/rpmsg.h>
-static void rpmsg_sample_cb(struct rpmsg_channel *rpdev, void *data, int len,
+ static void rpmsg_sample_cb(struct rpmsg_channel *rpdev, void *data, int len,
void *priv, u32 src)
-{
+ {
print_hex_dump(KERN_INFO, "incoming message:", DUMP_PREFIX_NONE,
16, 1, data, len, true);
-}
+ }
-static int rpmsg_sample_probe(struct rpmsg_channel *rpdev)
-{
+ static int rpmsg_sample_probe(struct rpmsg_channel *rpdev)
+ {
int err;
dev_info(&rpdev->dev, "chnl: 0x%x -> 0x%x\n", rpdev->src, rpdev->dst);
@@ -234,32 +291,35 @@ static int rpmsg_sample_probe(struct rpmsg_channel *rpdev)
}
return 0;
-}
+ }
-static void rpmsg_sample_remove(struct rpmsg_channel *rpdev)
-{
+ static void rpmsg_sample_remove(struct rpmsg_channel *rpdev)
+ {
dev_info(&rpdev->dev, "rpmsg sample client driver is removed\n");
-}
+ }
-static struct rpmsg_device_id rpmsg_driver_sample_id_table[] = {
+ static struct rpmsg_device_id rpmsg_driver_sample_id_table[] = {
{ .name = "rpmsg-client-sample" },
{ },
-};
-MODULE_DEVICE_TABLE(rpmsg, rpmsg_driver_sample_id_table);
+ };
+ MODULE_DEVICE_TABLE(rpmsg, rpmsg_driver_sample_id_table);
-static struct rpmsg_driver rpmsg_sample_client = {
+ static struct rpmsg_driver rpmsg_sample_client = {
.drv.name = KBUILD_MODNAME,
.id_table = rpmsg_driver_sample_id_table,
.probe = rpmsg_sample_probe,
.callback = rpmsg_sample_cb,
.remove = rpmsg_sample_remove,
-};
-module_rpmsg_driver(rpmsg_sample_client);
+ };
+ module_rpmsg_driver(rpmsg_sample_client);
+
+.. note::
-Note: a similar sample which can be built and loaded can be found
-in samples/rpmsg/.
+ a similar sample which can be built and loaded can be found
+ in samples/rpmsg/.
-4. Allocations of rpmsg channels:
+Allocations of rpmsg channels
+=============================
At this point we only support dynamic allocations of rpmsg channels.
diff --git a/Documentation/rtc.txt b/Documentation/rtc.txt
index ddc366026e00..c0c977445fb9 100644
--- a/Documentation/rtc.txt
+++ b/Documentation/rtc.txt
@@ -1,6 +1,6 @@
-
- Real Time Clock (RTC) Drivers for Linux
- =======================================
+=======================================
+Real Time Clock (RTC) Drivers for Linux
+=======================================
When Linux developers talk about a "Real Time Clock", they usually mean
something that tracks wall clock time and is battery backed so that it
@@ -32,8 +32,8 @@ only issue an alarm up to 24 hours in the future, other hardware may
be able to schedule one any time in the upcoming century.
- Old PC/AT-Compatible driver: /dev/rtc
- --------------------------------------
+Old PC/AT-Compatible driver: /dev/rtc
+--------------------------------------
All PCs (even Alpha machines) have a Real Time Clock built into them.
Usually they are built into the chipset of the computer, but some may
@@ -105,8 +105,8 @@ that will be using this driver. See the code at the end of this document.
(The original /dev/rtc driver was written by Paul Gortmaker.)
- New portable "RTC Class" drivers: /dev/rtcN
- --------------------------------------------
+New portable "RTC Class" drivers: /dev/rtcN
+--------------------------------------------
Because Linux supports many non-ACPI and non-PC platforms, some of which
have more than one RTC style clock, it needed a more portable solution
@@ -136,35 +136,39 @@ a high functionality RTC is integrated into the SOC. That system might read
the system clock from the discrete RTC, but use the integrated one for all
other tasks, because of its greater functionality.
-SYSFS INTERFACE
+SYSFS interface
---------------
The sysfs interface under /sys/class/rtc/rtcN provides access to various
rtc attributes without requiring the use of ioctls. All dates and times
are in the RTC's timezone, rather than in system time.
-date: RTC-provided date
-hctosys: 1 if the RTC provided the system time at boot via the
+================ ==============================================================
+date RTC-provided date
+hctosys 1 if the RTC provided the system time at boot via the
CONFIG_RTC_HCTOSYS kernel option, 0 otherwise
-max_user_freq: The maximum interrupt rate an unprivileged user may request
+max_user_freq The maximum interrupt rate an unprivileged user may request
from this RTC.
-name: The name of the RTC corresponding to this sysfs directory
-since_epoch: The number of seconds since the epoch according to the RTC
-time: RTC-provided time
-wakealarm: The time at which the clock will generate a system wakeup
+name The name of the RTC corresponding to this sysfs directory
+since_epoch The number of seconds since the epoch according to the RTC
+time RTC-provided time
+wakealarm The time at which the clock will generate a system wakeup
event. This is a one shot wakeup event, so must be reset
- after wake if a daily wakeup is required. Format is seconds since
- the epoch by default, or if there's a leading +, seconds in the
- future, or if there is a leading +=, seconds ahead of the current
- alarm.
-offset: The amount which the rtc clock has been adjusted in firmware.
+ after wake if a daily wakeup is required. Format is seconds
+ since the epoch by default, or if there's a leading +, seconds
+ in the future, or if there is a leading +=, seconds ahead of
+ the current alarm.
+offset The amount which the rtc clock has been adjusted in firmware.
Visible only if the driver supports clock offset adjustment.
The unit is parts per billion, i.e. The number of clock ticks
which are added to or removed from the rtc's base clock per
billion ticks. A positive value makes a day pass more slowly,
longer, and a negative value makes a day pass more quickly.
+*/nvmem The non volatile storage exported as a raw file, as described
+ in Documentation/nvmem/nvmem.txt
+================ ==============================================================
-IOCTL INTERFACE
+IOCTL interface
---------------
The ioctl() calls supported by /dev/rtc are also supported by the RTC class
diff --git a/Documentation/scheduler/sched-deadline.txt b/Documentation/scheduler/sched-deadline.txt
index cbc1b46cbf70..e89e36ec15a5 100644
--- a/Documentation/scheduler/sched-deadline.txt
+++ b/Documentation/scheduler/sched-deadline.txt
@@ -7,6 +7,8 @@ CONTENTS
0. WARNING
1. Overview
2. Scheduling algorithm
+ 2.1 Main algorithm
+ 2.2 Bandwidth reclaiming
3. Scheduling Real-Time Tasks
3.1 Definitions
3.2 Schedulability Analysis for Uniprocessor Systems
@@ -44,6 +46,9 @@ CONTENTS
2. Scheduling algorithm
==================
+2.1 Main algorithm
+------------------
+
SCHED_DEADLINE uses three parameters, named "runtime", "period", and
"deadline", to schedule tasks. A SCHED_DEADLINE task should receive
"runtime" microseconds of execution time every "period" microseconds, and
@@ -113,6 +118,160 @@ CONTENTS
remaining runtime = remaining runtime + runtime
+2.2 Bandwidth reclaiming
+------------------------
+
+ Bandwidth reclaiming for deadline tasks is based on the GRUB (Greedy
+ Reclamation of Unused Bandwidth) algorithm [15, 16, 17] and it is enabled
+ when flag SCHED_FLAG_RECLAIM is set.
+
+ The following diagram illustrates the state names for tasks handled by GRUB:
+
+ ------------
+ (d) | Active |
+ ------------->| |
+ | | Contending |
+ | ------------
+ | A |
+ ---------- | |
+ | | | |
+ | Inactive | |(b) | (a)
+ | | | |
+ ---------- | |
+ A | V
+ | ------------
+ | | Active |
+ --------------| Non |
+ (c) | Contending |
+ ------------
+
+ A task can be in one of the following states:
+
+ - ActiveContending: if it is ready for execution (or executing);
+
+ - ActiveNonContending: if it just blocked and has not yet surpassed the 0-lag
+ time;
+
+ - Inactive: if it is blocked and has surpassed the 0-lag time.
+
+ State transitions:
+
+ (a) When a task blocks, it does not become immediately inactive since its
+ bandwidth cannot be immediately reclaimed without breaking the
+ real-time guarantees. It therefore enters a transitional state called
+ ActiveNonContending. The scheduler arms the "inactive timer" to fire at
+ the 0-lag time, when the task's bandwidth can be reclaimed without
+ breaking the real-time guarantees.
+
+ The 0-lag time for a task entering the ActiveNonContending state is
+ computed as
+
+ (runtime * dl_period)
+ deadline - ---------------------
+ dl_runtime
+
+ where runtime is the remaining runtime, while dl_runtime and dl_period
+ are the reservation parameters.
+
+ (b) If the task wakes up before the inactive timer fires, the task re-enters
+ the ActiveContending state and the "inactive timer" is canceled.
+ In addition, if the task wakes up on a different runqueue, then
+ the task's utilization must be removed from the previous runqueue's active
+ utilization and must be added to the new runqueue's active utilization.
+ In order to avoid races between a task waking up on a runqueue while the
+ "inactive timer" is running on a different CPU, the "dl_non_contending"
+ flag is used to indicate that a task is not on a runqueue but is active
+ (so, the flag is set when the task blocks and is cleared when the
+ "inactive timer" fires or when the task wakes up).
+
+ (c) When the "inactive timer" fires, the task enters the Inactive state and
+ its utilization is removed from the runqueue's active utilization.
+
+ (d) When an inactive task wakes up, it enters the ActiveContending state and
+ its utilization is added to the active utilization of the runqueue where
+ it has been enqueued.
+
+ For each runqueue, the algorithm GRUB keeps track of two different bandwidths:
+
+ - Active bandwidth (running_bw): this is the sum of the bandwidths of all
+ tasks in active state (i.e., ActiveContending or ActiveNonContending);
+
+ - Total bandwidth (this_bw): this is the sum of all tasks "belonging" to the
+ runqueue, including the tasks in Inactive state.
+
+
+ The algorithm reclaims the bandwidth of the tasks in Inactive state.
+ It does so by decrementing the runtime of the executing task Ti at a pace equal
+ to
+
+ dq = -max{ Ui, (1 - Uinact) } dt
+
+ where Uinact is the inactive utilization, computed as (this_bq - running_bw),
+ and Ui is the bandwidth of task Ti.
+
+
+ Let's now see a trivial example of two deadline tasks with runtime equal
+ to 4 and period equal to 8 (i.e., bandwidth equal to 0.5):
+
+ A Task T1
+ |
+ | |
+ | |
+ |-------- |----
+ | | V
+ |---|---|---|---|---|---|---|---|--------->t
+ 0 1 2 3 4 5 6 7 8
+
+
+ A Task T2
+ |
+ | |
+ | |
+ | ------------------------|
+ | | V
+ |---|---|---|---|---|---|---|---|--------->t
+ 0 1 2 3 4 5 6 7 8
+
+
+ A running_bw
+ |
+ 1 ----------------- ------
+ | | |
+ 0.5- -----------------
+ | |
+ |---|---|---|---|---|---|---|---|--------->t
+ 0 1 2 3 4 5 6 7 8
+
+
+ - Time t = 0:
+
+ Both tasks are ready for execution and therefore in ActiveContending state.
+ Suppose Task T1 is the first task to start execution.
+ Since there are no inactive tasks, its runtime is decreased as dq = -1 dt.
+
+ - Time t = 2:
+
+ Suppose that task T1 blocks
+ Task T1 therefore enters the ActiveNonContending state. Since its remaining
+ runtime is equal to 2, its 0-lag time is equal to t = 4.
+ Task T2 start execution, with runtime still decreased as dq = -1 dt since
+ there are no inactive tasks.
+
+ - Time t = 4:
+
+ This is the 0-lag time for Task T1. Since it didn't woken up in the
+ meantime, it enters the Inactive state. Its bandwidth is removed from
+ running_bw.
+ Task T2 continues its execution. However, its runtime is now decreased as
+ dq = - 0.5 dt because Uinact = 0.5.
+ Task T2 therefore reclaims the bandwidth unused by Task T1.
+
+ - Time t = 8:
+
+ Task T1 wakes up. It enters the ActiveContending state again, and the
+ running_bw is incremented.
+
+
3. Scheduling Real-Time Tasks
=============================
@@ -330,6 +489,15 @@ CONTENTS
14 - J. Erickson, U. Devi and S. Baruah. Improved tardiness bounds for
Global EDF. Proceedings of the 22nd Euromicro Conference on
Real-Time Systems, 2010.
+ 15 - G. Lipari, S. Baruah, Greedy reclamation of unused bandwidth in
+ constant-bandwidth servers, 12th IEEE Euromicro Conference on Real-Time
+ Systems, 2000.
+ 16 - L. Abeni, J. Lelli, C. Scordino, L. Palopoli, Greedy CPU reclaiming for
+ SCHED DEADLINE. In Proceedings of the Real-Time Linux Workshop (RTLWS),
+ Dusseldorf, Germany, 2014.
+ 17 - L. Abeni, G. Lipari, A. Parri, Y. Sun, Multicore CPU reclaiming: parallel
+ or sequential?. In Proceedings of the 31st Annual ACM Symposium on Applied
+ Computing, 2016.
4. Bandwidth management
diff --git a/Documentation/security/00-INDEX b/Documentation/security/00-INDEX
deleted file mode 100644
index 45c82fd3e9d3..000000000000
--- a/Documentation/security/00-INDEX
+++ /dev/null
@@ -1,26 +0,0 @@
-00-INDEX
- - this file.
-LSM.txt
- - description of the Linux Security Module framework.
-SELinux.txt
- - how to get started with the SELinux security enhancement.
-Smack.txt
- - documentation on the Smack Linux Security Module.
-Yama.txt
- - documentation on the Yama Linux Security Module.
-apparmor.txt
- - documentation on the AppArmor security extension.
-credentials.txt
- - documentation about credentials in Linux.
-keys-ecryptfs.txt
- - description of the encryption keys for the ecryptfs filesystem.
-keys-request-key.txt
- - description of the kernel key request service.
-keys-trusted-encrypted.txt
- - info on the Trusted and Encrypted keys in the kernel key ring service.
-keys.txt
- - description of the kernel key retention service.
-tomoyo.txt
- - documentation on the TOMOYO Linux Security Module.
-IMA-templates.txt
- - documentation on the template management mechanism for IMA.
diff --git a/Documentation/security/IMA-templates.rst b/Documentation/security/IMA-templates.rst
new file mode 100644
index 000000000000..2cd0e273cc9a
--- /dev/null
+++ b/Documentation/security/IMA-templates.rst
@@ -0,0 +1,94 @@
+=================================
+IMA Template Management Mechanism
+=================================
+
+
+Introduction
+============
+
+The original ``ima`` template is fixed length, containing the filedata hash
+and pathname. The filedata hash is limited to 20 bytes (md5/sha1).
+The pathname is a null terminated string, limited to 255 characters.
+To overcome these limitations and to add additional file metadata, it is
+necessary to extend the current version of IMA by defining additional
+templates. For example, information that could be possibly reported are
+the inode UID/GID or the LSM labels either of the inode and of the process
+that is accessing it.
+
+However, the main problem to introduce this feature is that, each time
+a new template is defined, the functions that generate and display
+the measurements list would include the code for handling a new format
+and, thus, would significantly grow over the time.
+
+The proposed solution solves this problem by separating the template
+management from the remaining IMA code. The core of this solution is the
+definition of two new data structures: a template descriptor, to determine
+which information should be included in the measurement list; a template
+field, to generate and display data of a given type.
+
+Managing templates with these structures is very simple. To support
+a new data type, developers define the field identifier and implement
+two functions, init() and show(), respectively to generate and display
+measurement entries. Defining a new template descriptor requires
+specifying the template format (a string of field identifiers separated
+by the ``|`` character) through the ``ima_template_fmt`` kernel command line
+parameter. At boot time, IMA initializes the chosen template descriptor
+by translating the format into an array of template fields structures taken
+from the set of the supported ones.
+
+After the initialization step, IMA will call ``ima_alloc_init_template()``
+(new function defined within the patches for the new template management
+mechanism) to generate a new measurement entry by using the template
+descriptor chosen through the kernel configuration or through the newly
+introduced ``ima_template`` and ``ima_template_fmt`` kernel command line parameters.
+It is during this phase that the advantages of the new architecture are
+clearly shown: the latter function will not contain specific code to handle
+a given template but, instead, it simply calls the ``init()`` method of the template
+fields associated to the chosen template descriptor and store the result
+(pointer to allocated data and data length) in the measurement entry structure.
+
+The same mechanism is employed to display measurements entries.
+The functions ``ima[_ascii]_measurements_show()`` retrieve, for each entry,
+the template descriptor used to produce that entry and call the show()
+method for each item of the array of template fields structures.
+
+
+
+Supported Template Fields and Descriptors
+=========================================
+
+In the following, there is the list of supported template fields
+``('<identifier>': description)``, that can be used to define new template
+descriptors by adding their identifier to the format string
+(support for more data types will be added later):
+
+ - 'd': the digest of the event (i.e. the digest of a measured file),
+ calculated with the SHA1 or MD5 hash algorithm;
+ - 'n': the name of the event (i.e. the file name), with size up to 255 bytes;
+ - 'd-ng': the digest of the event, calculated with an arbitrary hash
+ algorithm (field format: [<hash algo>:]digest, where the digest
+ prefix is shown only if the hash algorithm is not SHA1 or MD5);
+ - 'n-ng': the name of the event, without size limitations;
+ - 'sig': the file signature.
+
+
+Below, there is the list of defined template descriptors:
+
+ - "ima": its format is ``d|n``;
+ - "ima-ng" (default): its format is ``d-ng|n-ng``;
+ - "ima-sig": its format is ``d-ng|n-ng|sig``.
+
+
+
+Use
+===
+
+To specify the template descriptor to be used to generate measurement entries,
+currently the following methods are supported:
+
+ - select a template descriptor among those supported in the kernel
+ configuration (``ima-ng`` is the default choice);
+ - specify a template descriptor name from the kernel command line through
+ the ``ima_template=`` parameter;
+ - register a new template descriptor with custom format through the kernel
+ command line parameter ``ima_template_fmt=``.
diff --git a/Documentation/security/IMA-templates.txt b/Documentation/security/IMA-templates.txt
deleted file mode 100644
index 839b5dad9226..000000000000
--- a/Documentation/security/IMA-templates.txt
+++ /dev/null
@@ -1,88 +0,0 @@
- IMA Template Management Mechanism
-
-
-==== INTRODUCTION ====
-
-The original 'ima' template is fixed length, containing the filedata hash
-and pathname. The filedata hash is limited to 20 bytes (md5/sha1).
-The pathname is a null terminated string, limited to 255 characters.
-To overcome these limitations and to add additional file metadata, it is
-necessary to extend the current version of IMA by defining additional
-templates. For example, information that could be possibly reported are
-the inode UID/GID or the LSM labels either of the inode and of the process
-that is accessing it.
-
-However, the main problem to introduce this feature is that, each time
-a new template is defined, the functions that generate and display
-the measurements list would include the code for handling a new format
-and, thus, would significantly grow over the time.
-
-The proposed solution solves this problem by separating the template
-management from the remaining IMA code. The core of this solution is the
-definition of two new data structures: a template descriptor, to determine
-which information should be included in the measurement list; a template
-field, to generate and display data of a given type.
-
-Managing templates with these structures is very simple. To support
-a new data type, developers define the field identifier and implement
-two functions, init() and show(), respectively to generate and display
-measurement entries. Defining a new template descriptor requires
-specifying the template format (a string of field identifiers separated
-by the '|' character) through the 'ima_template_fmt' kernel command line
-parameter. At boot time, IMA initializes the chosen template descriptor
-by translating the format into an array of template fields structures taken
-from the set of the supported ones.
-
-After the initialization step, IMA will call ima_alloc_init_template()
-(new function defined within the patches for the new template management
-mechanism) to generate a new measurement entry by using the template
-descriptor chosen through the kernel configuration or through the newly
-introduced 'ima_template' and 'ima_template_fmt' kernel command line parameters.
-It is during this phase that the advantages of the new architecture are
-clearly shown: the latter function will not contain specific code to handle
-a given template but, instead, it simply calls the init() method of the template
-fields associated to the chosen template descriptor and store the result
-(pointer to allocated data and data length) in the measurement entry structure.
-
-The same mechanism is employed to display measurements entries.
-The functions ima[_ascii]_measurements_show() retrieve, for each entry,
-the template descriptor used to produce that entry and call the show()
-method for each item of the array of template fields structures.
-
-
-
-==== SUPPORTED TEMPLATE FIELDS AND DESCRIPTORS ====
-
-In the following, there is the list of supported template fields
-('<identifier>': description), that can be used to define new template
-descriptors by adding their identifier to the format string
-(support for more data types will be added later):
-
- - 'd': the digest of the event (i.e. the digest of a measured file),
- calculated with the SHA1 or MD5 hash algorithm;
- - 'n': the name of the event (i.e. the file name), with size up to 255 bytes;
- - 'd-ng': the digest of the event, calculated with an arbitrary hash
- algorithm (field format: [<hash algo>:]digest, where the digest
- prefix is shown only if the hash algorithm is not SHA1 or MD5);
- - 'n-ng': the name of the event, without size limitations;
- - 'sig': the file signature.
-
-
-Below, there is the list of defined template descriptors:
- - "ima": its format is 'd|n';
- - "ima-ng" (default): its format is 'd-ng|n-ng';
- - "ima-sig": its format is 'd-ng|n-ng|sig'.
-
-
-
-==== USE ====
-
-To specify the template descriptor to be used to generate measurement entries,
-currently the following methods are supported:
-
- - select a template descriptor among those supported in the kernel
- configuration ('ima-ng' is the default choice);
- - specify a template descriptor name from the kernel command line through
- the 'ima_template=' parameter;
- - register a new template descriptor with custom format through the kernel
- command line parameter 'ima_template_fmt='.
diff --git a/Documentation/security/LSM.rst b/Documentation/security/LSM.rst
new file mode 100644
index 000000000000..d75778b0fa10
--- /dev/null
+++ b/Documentation/security/LSM.rst
@@ -0,0 +1,14 @@
+=================================
+Linux Security Module Development
+=================================
+
+Based on https://lkml.org/lkml/2007/10/26/215,
+a new LSM is accepted into the kernel when its intent (a description of
+what it tries to protect against and in what cases one would expect to
+use it) has been appropriately documented in ``Documentation/security/LSM``.
+This allows an LSM's code to be easily compared to its goals, and so
+that end users and distros can make a more informed decision about which
+LSMs suit their requirements.
+
+For extensive documentation on the available LSM hook interfaces, please
+see ``include/linux/lsm_hooks.h``.
diff --git a/Documentation/security/LSM.txt b/Documentation/security/LSM.txt
deleted file mode 100644
index c2683f28ed36..000000000000
--- a/Documentation/security/LSM.txt
+++ /dev/null
@@ -1,41 +0,0 @@
-Linux Security Module framework
--------------------------------
-
-The Linux Security Module (LSM) framework provides a mechanism for
-various security checks to be hooked by new kernel extensions. The name
-"module" is a bit of a misnomer since these extensions are not actually
-loadable kernel modules. Instead, they are selectable at build-time via
-CONFIG_DEFAULT_SECURITY and can be overridden at boot-time via the
-"security=..." kernel command line argument, in the case where multiple
-LSMs were built into a given kernel.
-
-The primary users of the LSM interface are Mandatory Access Control
-(MAC) extensions which provide a comprehensive security policy. Examples
-include SELinux, Smack, Tomoyo, and AppArmor. In addition to the larger
-MAC extensions, other extensions can be built using the LSM to provide
-specific changes to system operation when these tweaks are not available
-in the core functionality of Linux itself.
-
-Without a specific LSM built into the kernel, the default LSM will be the
-Linux capabilities system. Most LSMs choose to extend the capabilities
-system, building their checks on top of the defined capability hooks.
-For more details on capabilities, see capabilities(7) in the Linux
-man-pages project.
-
-A list of the active security modules can be found by reading
-/sys/kernel/security/lsm. This is a comma separated list, and
-will always include the capability module. The list reflects the
-order in which checks are made. The capability module will always
-be first, followed by any "minor" modules (e.g. Yama) and then
-the one "major" module (e.g. SELinux) if there is one configured.
-
-Based on https://lkml.org/lkml/2007/10/26/215,
-a new LSM is accepted into the kernel when its intent (a description of
-what it tries to protect against and in what cases one would expect to
-use it) has been appropriately documented in Documentation/security/.
-This allows an LSM's code to be easily compared to its goals, and so
-that end users and distros can make a more informed decision about which
-LSMs suit their requirements.
-
-For extensive documentation on the available LSM hook interfaces, please
-see include/linux/security.h.
diff --git a/Documentation/security/LoadPin.txt b/Documentation/security/LoadPin.txt
deleted file mode 100644
index e11877f5d3d4..000000000000
--- a/Documentation/security/LoadPin.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-LoadPin is a Linux Security Module that ensures all kernel-loaded files
-(modules, firmware, etc) all originate from the same filesystem, with
-the expectation that such a filesystem is backed by a read-only device
-such as dm-verity or CDROM. This allows systems that have a verified
-and/or unchangeable filesystem to enforce module and firmware loading
-restrictions without needing to sign the files individually.
-
-The LSM is selectable at build-time with CONFIG_SECURITY_LOADPIN, and
-can be controlled at boot-time with the kernel command line option
-"loadpin.enabled". By default, it is enabled, but can be disabled at
-boot ("loadpin.enabled=0").
-
-LoadPin starts pinning when it sees the first file loaded. If the
-block device backing the filesystem is not read-only, a sysctl is
-created to toggle pinning: /proc/sys/kernel/loadpin/enabled. (Having
-a mutable filesystem means pinning is mutable too, but having the
-sysctl allows for easy testing on systems with a mutable filesystem.)
diff --git a/Documentation/security/SELinux.txt b/Documentation/security/SELinux.txt
deleted file mode 100644
index 07eae00f3314..000000000000
--- a/Documentation/security/SELinux.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-If you want to use SELinux, chances are you will want
-to use the distro-provided policies, or install the
-latest reference policy release from
- http://oss.tresys.com/projects/refpolicy
-
-However, if you want to install a dummy policy for
-testing, you can do using 'mdp' provided under
-scripts/selinux. Note that this requires the selinux
-userspace to be installed - in particular you will
-need checkpolicy to compile a kernel, and setfiles and
-fixfiles to label the filesystem.
-
- 1. Compile the kernel with selinux enabled.
- 2. Type 'make' to compile mdp.
- 3. Make sure that you are not running with
- SELinux enabled and a real policy. If
- you are, reboot with selinux disabled
- before continuing.
- 4. Run install_policy.sh:
- cd scripts/selinux
- sh install_policy.sh
-
-Step 4 will create a new dummy policy valid for your
-kernel, with a single selinux user, role, and type.
-It will compile the policy, will set your SELINUXTYPE to
-dummy in /etc/selinux/config, install the compiled policy
-as 'dummy', and relabel your filesystem.
diff --git a/Documentation/security/Smack.txt b/Documentation/security/Smack.txt
deleted file mode 100644
index 945cc633d883..000000000000
--- a/Documentation/security/Smack.txt
+++ /dev/null
@@ -1,752 +0,0 @@
-
-
- "Good for you, you've decided to clean the elevator!"
- - The Elevator, from Dark Star
-
-Smack is the Simplified Mandatory Access Control Kernel.
-Smack is a kernel based implementation of mandatory access
-control that includes simplicity in its primary design goals.
-
-Smack is not the only Mandatory Access Control scheme
-available for Linux. Those new to Mandatory Access Control
-are encouraged to compare Smack with the other mechanisms
-available to determine which is best suited to the problem
-at hand.
-
-Smack consists of three major components:
- - The kernel
- - Basic utilities, which are helpful but not required
- - Configuration data
-
-The kernel component of Smack is implemented as a Linux
-Security Modules (LSM) module. It requires netlabel and
-works best with file systems that support extended attributes,
-although xattr support is not strictly required.
-It is safe to run a Smack kernel under a "vanilla" distribution.
-
-Smack kernels use the CIPSO IP option. Some network
-configurations are intolerant of IP options and can impede
-access to systems that use them as Smack does.
-
-Smack is used in the Tizen operating system. Please
-go to http://wiki.tizen.org for information about how
-Smack is used in Tizen.
-
-The current git repository for Smack user space is:
-
- git://github.com/smack-team/smack.git
-
-This should make and install on most modern distributions.
-There are five commands included in smackutil:
-
-chsmack - display or set Smack extended attribute values
-smackctl - load the Smack access rules
-smackaccess - report if a process with one label has access
- to an object with another
-
-These two commands are obsolete with the introduction of
-the smackfs/load2 and smackfs/cipso2 interfaces.
-
-smackload - properly formats data for writing to smackfs/load
-smackcipso - properly formats data for writing to smackfs/cipso
-
-In keeping with the intent of Smack, configuration data is
-minimal and not strictly required. The most important
-configuration step is mounting the smackfs pseudo filesystem.
-If smackutil is installed the startup script will take care
-of this, but it can be manually as well.
-
-Add this line to /etc/fstab:
-
- smackfs /sys/fs/smackfs smackfs defaults 0 0
-
-The /sys/fs/smackfs directory is created by the kernel.
-
-Smack uses extended attributes (xattrs) to store labels on filesystem
-objects. The attributes are stored in the extended attribute security
-name space. A process must have CAP_MAC_ADMIN to change any of these
-attributes.
-
-The extended attributes that Smack uses are:
-
-SMACK64
- Used to make access control decisions. In almost all cases
- the label given to a new filesystem object will be the label
- of the process that created it.
-SMACK64EXEC
- The Smack label of a process that execs a program file with
- this attribute set will run with this attribute's value.
-SMACK64MMAP
- Don't allow the file to be mmapped by a process whose Smack
- label does not allow all of the access permitted to a process
- with the label contained in this attribute. This is a very
- specific use case for shared libraries.
-SMACK64TRANSMUTE
- Can only have the value "TRUE". If this attribute is present
- on a directory when an object is created in the directory and
- the Smack rule (more below) that permitted the write access
- to the directory includes the transmute ("t") mode the object
- gets the label of the directory instead of the label of the
- creating process. If the object being created is a directory
- the SMACK64TRANSMUTE attribute is set as well.
-SMACK64IPIN
- This attribute is only available on file descriptors for sockets.
- Use the Smack label in this attribute for access control
- decisions on packets being delivered to this socket.
-SMACK64IPOUT
- This attribute is only available on file descriptors for sockets.
- Use the Smack label in this attribute for access control
- decisions on packets coming from this socket.
-
-There are multiple ways to set a Smack label on a file:
-
- # attr -S -s SMACK64 -V "value" path
- # chsmack -a value path
-
-A process can see the Smack label it is running with by
-reading /proc/self/attr/current. A process with CAP_MAC_ADMIN
-can set the process Smack by writing there.
-
-Most Smack configuration is accomplished by writing to files
-in the smackfs filesystem. This pseudo-filesystem is mounted
-on /sys/fs/smackfs.
-
-access
- Provided for backward compatibility. The access2 interface
- is preferred and should be used instead.
- This interface reports whether a subject with the specified
- Smack label has a particular access to an object with a
- specified Smack label. Write a fixed format access rule to
- this file. The next read will indicate whether the access
- would be permitted. The text will be either "1" indicating
- access, or "0" indicating denial.
-access2
- This interface reports whether a subject with the specified
- Smack label has a particular access to an object with a
- specified Smack label. Write a long format access rule to
- this file. The next read will indicate whether the access
- would be permitted. The text will be either "1" indicating
- access, or "0" indicating denial.
-ambient
- This contains the Smack label applied to unlabeled network
- packets.
-change-rule
- This interface allows modification of existing access control rules.
- The format accepted on write is:
- "%s %s %s %s"
- where the first string is the subject label, the second the
- object label, the third the access to allow and the fourth the
- access to deny. The access strings may contain only the characters
- "rwxat-". If a rule for a given subject and object exists it will be
- modified by enabling the permissions in the third string and disabling
- those in the fourth string. If there is no such rule it will be
- created using the access specified in the third and the fourth strings.
-cipso
- Provided for backward compatibility. The cipso2 interface
- is preferred and should be used instead.
- This interface allows a specific CIPSO header to be assigned
- to a Smack label. The format accepted on write is:
- "%24s%4d%4d"["%4d"]...
- The first string is a fixed Smack label. The first number is
- the level to use. The second number is the number of categories.
- The following numbers are the categories.
- "level-3-cats-5-19 3 2 5 19"
-cipso2
- This interface allows a specific CIPSO header to be assigned
- to a Smack label. The format accepted on write is:
- "%s%4d%4d"["%4d"]...
- The first string is a long Smack label. The first number is
- the level to use. The second number is the number of categories.
- The following numbers are the categories.
- "level-3-cats-5-19 3 2 5 19"
-direct
- This contains the CIPSO level used for Smack direct label
- representation in network packets.
-doi
- This contains the CIPSO domain of interpretation used in
- network packets.
-ipv6host
- This interface allows specific IPv6 internet addresses to be
- treated as single label hosts. Packets are sent to single
- label hosts only from processes that have Smack write access
- to the host label. All packets received from single label hosts
- are given the specified label. The format accepted on write is:
- "%h:%h:%h:%h:%h:%h:%h:%h label" or
- "%h:%h:%h:%h:%h:%h:%h:%h/%d label".
- The "::" address shortcut is not supported.
- If label is "-DELETE" a matched entry will be deleted.
-load
- Provided for backward compatibility. The load2 interface
- is preferred and should be used instead.
- This interface allows access control rules in addition to
- the system defined rules to be specified. The format accepted
- on write is:
- "%24s%24s%5s"
- where the first string is the subject label, the second the
- object label, and the third the requested access. The access
- string may contain only the characters "rwxat-", and specifies
- which sort of access is allowed. The "-" is a placeholder for
- permissions that are not allowed. The string "r-x--" would
- specify read and execute access. Labels are limited to 23
- characters in length.
-load2
- This interface allows access control rules in addition to
- the system defined rules to be specified. The format accepted
- on write is:
- "%s %s %s"
- where the first string is the subject label, the second the
- object label, and the third the requested access. The access
- string may contain only the characters "rwxat-", and specifies
- which sort of access is allowed. The "-" is a placeholder for
- permissions that are not allowed. The string "r-x--" would
- specify read and execute access.
-load-self
- Provided for backward compatibility. The load-self2 interface
- is preferred and should be used instead.
- This interface allows process specific access rules to be
- defined. These rules are only consulted if access would
- otherwise be permitted, and are intended to provide additional
- restrictions on the process. The format is the same as for
- the load interface.
-load-self2
- This interface allows process specific access rules to be
- defined. These rules are only consulted if access would
- otherwise be permitted, and are intended to provide additional
- restrictions on the process. The format is the same as for
- the load2 interface.
-logging
- This contains the Smack logging state.
-mapped
- This contains the CIPSO level used for Smack mapped label
- representation in network packets.
-netlabel
- This interface allows specific internet addresses to be
- treated as single label hosts. Packets are sent to single
- label hosts without CIPSO headers, but only from processes
- that have Smack write access to the host label. All packets
- received from single label hosts are given the specified
- label. The format accepted on write is:
- "%d.%d.%d.%d label" or "%d.%d.%d.%d/%d label".
- If the label specified is "-CIPSO" the address is treated
- as a host that supports CIPSO headers.
-onlycap
- This contains labels processes must have for CAP_MAC_ADMIN
- and CAP_MAC_OVERRIDE to be effective. If this file is empty
- these capabilities are effective at for processes with any
- label. The values are set by writing the desired labels, separated
- by spaces, to the file or cleared by writing "-" to the file.
-ptrace
- This is used to define the current ptrace policy
- 0 - default: this is the policy that relies on Smack access rules.
- For the PTRACE_READ a subject needs to have a read access on
- object. For the PTRACE_ATTACH a read-write access is required.
- 1 - exact: this is the policy that limits PTRACE_ATTACH. Attach is
- only allowed when subject's and object's labels are equal.
- PTRACE_READ is not affected. Can be overridden with CAP_SYS_PTRACE.
- 2 - draconian: this policy behaves like the 'exact' above with an
- exception that it can't be overridden with CAP_SYS_PTRACE.
-revoke-subject
- Writing a Smack label here sets the access to '-' for all access
- rules with that subject label.
-unconfined
- If the kernel is configured with CONFIG_SECURITY_SMACK_BRINGUP
- a process with CAP_MAC_ADMIN can write a label into this interface.
- Thereafter, accesses that involve that label will be logged and
- the access permitted if it wouldn't be otherwise. Note that this
- is dangerous and can ruin the proper labeling of your system.
- It should never be used in production.
-relabel-self
- This interface contains a list of labels to which the process can
- transition to, by writing to /proc/self/attr/current.
- Normally a process can change its own label to any legal value, but only
- if it has CAP_MAC_ADMIN. This interface allows a process without
- CAP_MAC_ADMIN to relabel itself to one of labels from predefined list.
- A process without CAP_MAC_ADMIN can change its label only once. When it
- does, this list will be cleared.
- The values are set by writing the desired labels, separated
- by spaces, to the file or cleared by writing "-" to the file.
-
-If you are using the smackload utility
-you can add access rules in /etc/smack/accesses. They take the form:
-
- subjectlabel objectlabel access
-
-access is a combination of the letters rwxatb which specify the
-kind of access permitted a subject with subjectlabel on an
-object with objectlabel. If there is no rule no access is allowed.
-
-Look for additional programs on http://schaufler-ca.com
-
-From the Smack Whitepaper:
-
-The Simplified Mandatory Access Control Kernel
-
-Casey Schaufler
-casey@schaufler-ca.com
-
-Mandatory Access Control
-
-Computer systems employ a variety of schemes to constrain how information is
-shared among the people and services using the machine. Some of these schemes
-allow the program or user to decide what other programs or users are allowed
-access to pieces of data. These schemes are called discretionary access
-control mechanisms because the access control is specified at the discretion
-of the user. Other schemes do not leave the decision regarding what a user or
-program can access up to users or programs. These schemes are called mandatory
-access control mechanisms because you don't have a choice regarding the users
-or programs that have access to pieces of data.
-
-Bell & LaPadula
-
-From the middle of the 1980's until the turn of the century Mandatory Access
-Control (MAC) was very closely associated with the Bell & LaPadula security
-model, a mathematical description of the United States Department of Defense
-policy for marking paper documents. MAC in this form enjoyed a following
-within the Capital Beltway and Scandinavian supercomputer centers but was
-often sited as failing to address general needs.
-
-Domain Type Enforcement
-
-Around the turn of the century Domain Type Enforcement (DTE) became popular.
-This scheme organizes users, programs, and data into domains that are
-protected from each other. This scheme has been widely deployed as a component
-of popular Linux distributions. The administrative overhead required to
-maintain this scheme and the detailed understanding of the whole system
-necessary to provide a secure domain mapping leads to the scheme being
-disabled or used in limited ways in the majority of cases.
-
-Smack
-
-Smack is a Mandatory Access Control mechanism designed to provide useful MAC
-while avoiding the pitfalls of its predecessors. The limitations of Bell &
-LaPadula are addressed by providing a scheme whereby access can be controlled
-according to the requirements of the system and its purpose rather than those
-imposed by an arcane government policy. The complexity of Domain Type
-Enforcement and avoided by defining access controls in terms of the access
-modes already in use.
-
-Smack Terminology
-
-The jargon used to talk about Smack will be familiar to those who have dealt
-with other MAC systems and shouldn't be too difficult for the uninitiated to
-pick up. There are four terms that are used in a specific way and that are
-especially important:
-
- Subject: A subject is an active entity on the computer system.
- On Smack a subject is a task, which is in turn the basic unit
- of execution.
-
- Object: An object is a passive entity on the computer system.
- On Smack files of all types, IPC, and tasks can be objects.
-
- Access: Any attempt by a subject to put information into or get
- information from an object is an access.
-
- Label: Data that identifies the Mandatory Access Control
- characteristics of a subject or an object.
-
-These definitions are consistent with the traditional use in the security
-community. There are also some terms from Linux that are likely to crop up:
-
- Capability: A task that possesses a capability has permission to
- violate an aspect of the system security policy, as identified by
- the specific capability. A task that possesses one or more
- capabilities is a privileged task, whereas a task with no
- capabilities is an unprivileged task.
-
- Privilege: A task that is allowed to violate the system security
- policy is said to have privilege. As of this writing a task can
- have privilege either by possessing capabilities or by having an
- effective user of root.
-
-Smack Basics
-
-Smack is an extension to a Linux system. It enforces additional restrictions
-on what subjects can access which objects, based on the labels attached to
-each of the subject and the object.
-
-Labels
-
-Smack labels are ASCII character strings. They can be up to 255 characters
-long, but keeping them to twenty-three characters is recommended.
-Single character labels using special characters, that being anything
-other than a letter or digit, are reserved for use by the Smack development
-team. Smack labels are unstructured, case sensitive, and the only operation
-ever performed on them is comparison for equality. Smack labels cannot
-contain unprintable characters, the "/" (slash), the "\" (backslash), the "'"
-(quote) and '"' (double-quote) characters.
-Smack labels cannot begin with a '-'. This is reserved for special options.
-
-There are some predefined labels:
-
- _ Pronounced "floor", a single underscore character.
- ^ Pronounced "hat", a single circumflex character.
- * Pronounced "star", a single asterisk character.
- ? Pronounced "huh", a single question mark character.
- @ Pronounced "web", a single at sign character.
-
-Every task on a Smack system is assigned a label. The Smack label
-of a process will usually be assigned by the system initialization
-mechanism.
-
-Access Rules
-
-Smack uses the traditional access modes of Linux. These modes are read,
-execute, write, and occasionally append. There are a few cases where the
-access mode may not be obvious. These include:
-
- Signals: A signal is a write operation from the subject task to
- the object task.
- Internet Domain IPC: Transmission of a packet is considered a
- write operation from the source task to the destination task.
-
-Smack restricts access based on the label attached to a subject and the label
-attached to the object it is trying to access. The rules enforced are, in
-order:
-
- 1. Any access requested by a task labeled "*" is denied.
- 2. A read or execute access requested by a task labeled "^"
- is permitted.
- 3. A read or execute access requested on an object labeled "_"
- is permitted.
- 4. Any access requested on an object labeled "*" is permitted.
- 5. Any access requested by a task on an object with the same
- label is permitted.
- 6. Any access requested that is explicitly defined in the loaded
- rule set is permitted.
- 7. Any other access is denied.
-
-Smack Access Rules
-
-With the isolation provided by Smack access separation is simple. There are
-many interesting cases where limited access by subjects to objects with
-different labels is desired. One example is the familiar spy model of
-sensitivity, where a scientist working on a highly classified project would be
-able to read documents of lower classifications and anything she writes will
-be "born" highly classified. To accommodate such schemes Smack includes a
-mechanism for specifying rules allowing access between labels.
-
-Access Rule Format
-
-The format of an access rule is:
-
- subject-label object-label access
-
-Where subject-label is the Smack label of the task, object-label is the Smack
-label of the thing being accessed, and access is a string specifying the sort
-of access allowed. The access specification is searched for letters that
-describe access modes:
-
- a: indicates that append access should be granted.
- r: indicates that read access should be granted.
- w: indicates that write access should be granted.
- x: indicates that execute access should be granted.
- t: indicates that the rule requests transmutation.
- b: indicates that the rule should be reported for bring-up.
-
-Uppercase values for the specification letters are allowed as well.
-Access mode specifications can be in any order. Examples of acceptable rules
-are:
-
- TopSecret Secret rx
- Secret Unclass R
- Manager Game x
- User HR w
- Snap Crackle rwxatb
- New Old rRrRr
- Closed Off -
-
-Examples of unacceptable rules are:
-
- Top Secret Secret rx
- Ace Ace r
- Odd spells waxbeans
-
-Spaces are not allowed in labels. Since a subject always has access to files
-with the same label specifying a rule for that case is pointless. Only
-valid letters (rwxatbRWXATB) and the dash ('-') character are allowed in
-access specifications. The dash is a placeholder, so "a-r" is the same
-as "ar". A lone dash is used to specify that no access should be allowed.
-
-Applying Access Rules
-
-The developers of Linux rarely define new sorts of things, usually importing
-schemes and concepts from other systems. Most often, the other systems are
-variants of Unix. Unix has many endearing properties, but consistency of
-access control models is not one of them. Smack strives to treat accesses as
-uniformly as is sensible while keeping with the spirit of the underlying
-mechanism.
-
-File system objects including files, directories, named pipes, symbolic links,
-and devices require access permissions that closely match those used by mode
-bit access. To open a file for reading read access is required on the file. To
-search a directory requires execute access. Creating a file with write access
-requires both read and write access on the containing directory. Deleting a
-file requires read and write access to the file and to the containing
-directory. It is possible that a user may be able to see that a file exists
-but not any of its attributes by the circumstance of having read access to the
-containing directory but not to the differently labeled file. This is an
-artifact of the file name being data in the directory, not a part of the file.
-
-If a directory is marked as transmuting (SMACK64TRANSMUTE=TRUE) and the
-access rule that allows a process to create an object in that directory
-includes 't' access the label assigned to the new object will be that
-of the directory, not the creating process. This makes it much easier
-for two processes with different labels to share data without granting
-access to all of their files.
-
-IPC objects, message queues, semaphore sets, and memory segments exist in flat
-namespaces and access requests are only required to match the object in
-question.
-
-Process objects reflect tasks on the system and the Smack label used to access
-them is the same Smack label that the task would use for its own access
-attempts. Sending a signal via the kill() system call is a write operation
-from the signaler to the recipient. Debugging a process requires both reading
-and writing. Creating a new task is an internal operation that results in two
-tasks with identical Smack labels and requires no access checks.
-
-Sockets are data structures attached to processes and sending a packet from
-one process to another requires that the sender have write access to the
-receiver. The receiver is not required to have read access to the sender.
-
-Setting Access Rules
-
-The configuration file /etc/smack/accesses contains the rules to be set at
-system startup. The contents are written to the special file
-/sys/fs/smackfs/load2. Rules can be added at any time and take effect
-immediately. For any pair of subject and object labels there can be only
-one rule, with the most recently specified overriding any earlier
-specification.
-
-Task Attribute
-
-The Smack label of a process can be read from /proc/<pid>/attr/current. A
-process can read its own Smack label from /proc/self/attr/current. A
-privileged process can change its own Smack label by writing to
-/proc/self/attr/current but not the label of another process.
-
-File Attribute
-
-The Smack label of a filesystem object is stored as an extended attribute
-named SMACK64 on the file. This attribute is in the security namespace. It can
-only be changed by a process with privilege.
-
-Privilege
-
-A process with CAP_MAC_OVERRIDE or CAP_MAC_ADMIN is privileged.
-CAP_MAC_OVERRIDE allows the process access to objects it would
-be denied otherwise. CAP_MAC_ADMIN allows a process to change
-Smack data, including rules and attributes.
-
-Smack Networking
-
-As mentioned before, Smack enforces access control on network protocol
-transmissions. Every packet sent by a Smack process is tagged with its Smack
-label. This is done by adding a CIPSO tag to the header of the IP packet. Each
-packet received is expected to have a CIPSO tag that identifies the label and
-if it lacks such a tag the network ambient label is assumed. Before the packet
-is delivered a check is made to determine that a subject with the label on the
-packet has write access to the receiving process and if that is not the case
-the packet is dropped.
-
-CIPSO Configuration
-
-It is normally unnecessary to specify the CIPSO configuration. The default
-values used by the system handle all internal cases. Smack will compose CIPSO
-label values to match the Smack labels being used without administrative
-intervention. Unlabeled packets that come into the system will be given the
-ambient label.
-
-Smack requires configuration in the case where packets from a system that is
-not Smack that speaks CIPSO may be encountered. Usually this will be a Trusted
-Solaris system, but there are other, less widely deployed systems out there.
-CIPSO provides 3 important values, a Domain Of Interpretation (DOI), a level,
-and a category set with each packet. The DOI is intended to identify a group
-of systems that use compatible labeling schemes, and the DOI specified on the
-Smack system must match that of the remote system or packets will be
-discarded. The DOI is 3 by default. The value can be read from
-/sys/fs/smackfs/doi and can be changed by writing to /sys/fs/smackfs/doi.
-
-The label and category set are mapped to a Smack label as defined in
-/etc/smack/cipso.
-
-A Smack/CIPSO mapping has the form:
-
- smack level [category [category]*]
-
-Smack does not expect the level or category sets to be related in any
-particular way and does not assume or assign accesses based on them. Some
-examples of mappings:
-
- TopSecret 7
- TS:A,B 7 1 2
- SecBDE 5 2 4 6
- RAFTERS 7 12 26
-
-The ":" and "," characters are permitted in a Smack label but have no special
-meaning.
-
-The mapping of Smack labels to CIPSO values is defined by writing to
-/sys/fs/smackfs/cipso2.
-
-In addition to explicit mappings Smack supports direct CIPSO mappings. One
-CIPSO level is used to indicate that the category set passed in the packet is
-in fact an encoding of the Smack label. The level used is 250 by default. The
-value can be read from /sys/fs/smackfs/direct and changed by writing to
-/sys/fs/smackfs/direct.
-
-Socket Attributes
-
-There are two attributes that are associated with sockets. These attributes
-can only be set by privileged tasks, but any task can read them for their own
-sockets.
-
- SMACK64IPIN: The Smack label of the task object. A privileged
- program that will enforce policy may set this to the star label.
-
- SMACK64IPOUT: The Smack label transmitted with outgoing packets.
- A privileged program may set this to match the label of another
- task with which it hopes to communicate.
-
-Smack Netlabel Exceptions
-
-You will often find that your labeled application has to talk to the outside,
-unlabeled world. To do this there's a special file /sys/fs/smackfs/netlabel
-where you can add some exceptions in the form of :
-@IP1 LABEL1 or
-@IP2/MASK LABEL2
-
-It means that your application will have unlabeled access to @IP1 if it has
-write access on LABEL1, and access to the subnet @IP2/MASK if it has write
-access on LABEL2.
-
-Entries in the /sys/fs/smackfs/netlabel file are matched by longest mask
-first, like in classless IPv4 routing.
-
-A special label '@' and an option '-CIPSO' can be used there :
-@ means Internet, any application with any label has access to it
--CIPSO means standard CIPSO networking
-
-If you don't know what CIPSO is and don't plan to use it, you can just do :
-echo 127.0.0.1 -CIPSO > /sys/fs/smackfs/netlabel
-echo 0.0.0.0/0 @ > /sys/fs/smackfs/netlabel
-
-If you use CIPSO on your 192.168.0.0/16 local network and need also unlabeled
-Internet access, you can have :
-echo 127.0.0.1 -CIPSO > /sys/fs/smackfs/netlabel
-echo 192.168.0.0/16 -CIPSO > /sys/fs/smackfs/netlabel
-echo 0.0.0.0/0 @ > /sys/fs/smackfs/netlabel
-
-
-Writing Applications for Smack
-
-There are three sorts of applications that will run on a Smack system. How an
-application interacts with Smack will determine what it will have to do to
-work properly under Smack.
-
-Smack Ignorant Applications
-
-By far the majority of applications have no reason whatever to care about the
-unique properties of Smack. Since invoking a program has no impact on the
-Smack label associated with the process the only concern likely to arise is
-whether the process has execute access to the program.
-
-Smack Relevant Applications
-
-Some programs can be improved by teaching them about Smack, but do not make
-any security decisions themselves. The utility ls(1) is one example of such a
-program.
-
-Smack Enforcing Applications
-
-These are special programs that not only know about Smack, but participate in
-the enforcement of system policy. In most cases these are the programs that
-set up user sessions. There are also network services that provide information
-to processes running with various labels.
-
-File System Interfaces
-
-Smack maintains labels on file system objects using extended attributes. The
-Smack label of a file, directory, or other file system object can be obtained
-using getxattr(2).
-
- len = getxattr("/", "security.SMACK64", value, sizeof (value));
-
-will put the Smack label of the root directory into value. A privileged
-process can set the Smack label of a file system object with setxattr(2).
-
- len = strlen("Rubble");
- rc = setxattr("/foo", "security.SMACK64", "Rubble", len, 0);
-
-will set the Smack label of /foo to "Rubble" if the program has appropriate
-privilege.
-
-Socket Interfaces
-
-The socket attributes can be read using fgetxattr(2).
-
-A privileged process can set the Smack label of outgoing packets with
-fsetxattr(2).
-
- len = strlen("Rubble");
- rc = fsetxattr(fd, "security.SMACK64IPOUT", "Rubble", len, 0);
-
-will set the Smack label "Rubble" on packets going out from the socket if the
-program has appropriate privilege.
-
- rc = fsetxattr(fd, "security.SMACK64IPIN, "*", strlen("*"), 0);
-
-will set the Smack label "*" as the object label against which incoming
-packets will be checked if the program has appropriate privilege.
-
-Administration
-
-Smack supports some mount options:
-
- smackfsdef=label: specifies the label to give files that lack
- the Smack label extended attribute.
-
- smackfsroot=label: specifies the label to assign the root of the
- file system if it lacks the Smack extended attribute.
-
- smackfshat=label: specifies a label that must have read access to
- all labels set on the filesystem. Not yet enforced.
-
- smackfsfloor=label: specifies a label to which all labels set on the
- filesystem must have read access. Not yet enforced.
-
-These mount options apply to all file system types.
-
-Smack auditing
-
-If you want Smack auditing of security events, you need to set CONFIG_AUDIT
-in your kernel configuration.
-By default, all denied events will be audited. You can change this behavior by
-writing a single character to the /sys/fs/smackfs/logging file :
-0 : no logging
-1 : log denied (default)
-2 : log accepted
-3 : log denied & accepted
-
-Events are logged as 'key=value' pairs, for each event you at least will get
-the subject, the object, the rights requested, the action, the kernel function
-that triggered the event, plus other pairs depending on the type of event
-audited.
-
-Bringup Mode
-
-Bringup mode provides logging features that can make application
-configuration and system bringup easier. Configure the kernel with
-CONFIG_SECURITY_SMACK_BRINGUP to enable these features. When bringup
-mode is enabled accesses that succeed due to rules marked with the "b"
-access mode will logged. When a new label is introduced for processes
-rules can be added aggressively, marked with the "b". The logging allows
-tracking of which rules actual get used for that label.
-
-Another feature of bringup mode is the "unconfined" option. Writing
-a label to /sys/fs/smackfs/unconfined makes subjects with that label
-able to access any object, and objects with that label accessible to
-all subjects. Any access that is granted because a label is unconfined
-is logged. This feature is dangerous, as files and directories may
-be created in places they couldn't if the policy were being enforced.
diff --git a/Documentation/security/Yama.txt b/Documentation/security/Yama.txt
deleted file mode 100644
index d9ee7d7a6c7f..000000000000
--- a/Documentation/security/Yama.txt
+++ /dev/null
@@ -1,71 +0,0 @@
-Yama is a Linux Security Module that collects system-wide DAC security
-protections that are not handled by the core kernel itself. This is
-selectable at build-time with CONFIG_SECURITY_YAMA, and can be controlled
-at run-time through sysctls in /proc/sys/kernel/yama:
-
-- ptrace_scope
-
-==============================================================
-
-ptrace_scope:
-
-As Linux grows in popularity, it will become a larger target for
-malware. One particularly troubling weakness of the Linux process
-interfaces is that a single user is able to examine the memory and
-running state of any of their processes. For example, if one application
-(e.g. Pidgin) was compromised, it would be possible for an attacker to
-attach to other running processes (e.g. Firefox, SSH sessions, GPG agent,
-etc) to extract additional credentials and continue to expand the scope
-of their attack without resorting to user-assisted phishing.
-
-This is not a theoretical problem. SSH session hijacking
-(http://www.storm.net.nz/projects/7) and arbitrary code injection
-(http://c-skills.blogspot.com/2007/05/injectso.html) attacks already
-exist and remain possible if ptrace is allowed to operate as before.
-Since ptrace is not commonly used by non-developers and non-admins, system
-builders should be allowed the option to disable this debugging system.
-
-For a solution, some applications use prctl(PR_SET_DUMPABLE, ...) to
-specifically disallow such ptrace attachment (e.g. ssh-agent), but many
-do not. A more general solution is to only allow ptrace directly from a
-parent to a child process (i.e. direct "gdb EXE" and "strace EXE" still
-work), or with CAP_SYS_PTRACE (i.e. "gdb --pid=PID", and "strace -p PID"
-still work as root).
-
-In mode 1, software that has defined application-specific relationships
-between a debugging process and its inferior (crash handlers, etc),
-prctl(PR_SET_PTRACER, pid, ...) can be used. An inferior can declare which
-other process (and its descendants) are allowed to call PTRACE_ATTACH
-against it. Only one such declared debugging process can exists for
-each inferior at a time. For example, this is used by KDE, Chromium, and
-Firefox's crash handlers, and by Wine for allowing only Wine processes
-to ptrace each other. If a process wishes to entirely disable these ptrace
-restrictions, it can call prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, ...)
-so that any otherwise allowed process (even those in external pid namespaces)
-may attach.
-
-The sysctl settings (writable only with CAP_SYS_PTRACE) are:
-
-0 - classic ptrace permissions: a process can PTRACE_ATTACH to any other
- process running under the same uid, as long as it is dumpable (i.e.
- did not transition uids, start privileged, or have called
- prctl(PR_SET_DUMPABLE...) already). Similarly, PTRACE_TRACEME is
- unchanged.
-
-1 - restricted ptrace: a process must have a predefined relationship
- with the inferior it wants to call PTRACE_ATTACH on. By default,
- this relationship is that of only its descendants when the above
- classic criteria is also met. To change the relationship, an
- inferior can call prctl(PR_SET_PTRACER, debugger, ...) to declare
- an allowed debugger PID to call PTRACE_ATTACH on the inferior.
- Using PTRACE_TRACEME is unchanged.
-
-2 - admin-only attach: only processes with CAP_SYS_PTRACE may use ptrace
- with PTRACE_ATTACH, or through children calling PTRACE_TRACEME.
-
-3 - no attach: no processes may use ptrace with PTRACE_ATTACH nor via
- PTRACE_TRACEME. Once set, this sysctl value cannot be changed.
-
-The original children-only logic was based on the restrictions in grsecurity.
-
-==============================================================
diff --git a/Documentation/security/apparmor.txt b/Documentation/security/apparmor.txt
deleted file mode 100644
index 93c1fd7d0635..000000000000
--- a/Documentation/security/apparmor.txt
+++ /dev/null
@@ -1,39 +0,0 @@
---- What is AppArmor? ---
-
-AppArmor is MAC style security extension for the Linux kernel. It implements
-a task centered policy, with task "profiles" being created and loaded
-from user space. Tasks on the system that do not have a profile defined for
-them run in an unconfined state which is equivalent to standard Linux DAC
-permissions.
-
---- How to enable/disable ---
-
-set CONFIG_SECURITY_APPARMOR=y
-
-If AppArmor should be selected as the default security module then
- set CONFIG_DEFAULT_SECURITY="apparmor"
- and CONFIG_SECURITY_APPARMOR_BOOTPARAM_VALUE=1
-
-Build the kernel
-
-If AppArmor is not the default security module it can be enabled by passing
-security=apparmor on the kernel's command line.
-
-If AppArmor is the default security module it can be disabled by passing
-apparmor=0, security=XXXX (where XXX is valid security module), on the
-kernel's command line
-
-For AppArmor to enforce any restrictions beyond standard Linux DAC permissions
-policy must be loaded into the kernel from user space (see the Documentation
-and tools links).
-
---- Documentation ---
-
-Documentation can be found on the wiki.
-
---- Links ---
-
-Mailing List - apparmor@lists.ubuntu.com
-Wiki - http://apparmor.wiki.kernel.org/
-User space tools - https://launchpad.net/apparmor
-Kernel module - git://git.kernel.org/pub/scm/linux/kernel/git/jj/apparmor-dev.git
diff --git a/Documentation/security/conf.py b/Documentation/security/conf.py
deleted file mode 100644
index 472fc9a8eb67..000000000000
--- a/Documentation/security/conf.py
+++ /dev/null
@@ -1,8 +0,0 @@
-project = "The kernel security subsystem manual"
-
-tags.add("subproject")
-
-latex_documents = [
- ('index', 'security.tex', project,
- 'The kernel development community', 'manual'),
-]
diff --git a/Documentation/security/credentials.rst b/Documentation/security/credentials.rst
new file mode 100644
index 000000000000..038a7e19eff9
--- /dev/null
+++ b/Documentation/security/credentials.rst
@@ -0,0 +1,554 @@
+====================
+Credentials in Linux
+====================
+
+By: David Howells <dhowells@redhat.com>
+
+.. contents:: :local:
+
+Overview
+========
+
+There are several parts to the security check performed by Linux when one
+object acts upon another:
+
+ 1. Objects.
+
+ Objects are things in the system that may be acted upon directly by
+ userspace programs. Linux has a variety of actionable objects, including:
+
+ - Tasks
+ - Files/inodes
+ - Sockets
+ - Message queues
+ - Shared memory segments
+ - Semaphores
+ - Keys
+
+ As a part of the description of all these objects there is a set of
+ credentials. What's in the set depends on the type of object.
+
+ 2. Object ownership.
+
+ Amongst the credentials of most objects, there will be a subset that
+ indicates the ownership of that object. This is used for resource
+ accounting and limitation (disk quotas and task rlimits for example).
+
+ In a standard UNIX filesystem, for instance, this will be defined by the
+ UID marked on the inode.
+
+ 3. The objective context.
+
+ Also amongst the credentials of those objects, there will be a subset that
+ indicates the 'objective context' of that object. This may or may not be
+ the same set as in (2) - in standard UNIX files, for instance, this is the
+ defined by the UID and the GID marked on the inode.
+
+ The objective context is used as part of the security calculation that is
+ carried out when an object is acted upon.
+
+ 4. Subjects.
+
+ A subject is an object that is acting upon another object.
+
+ Most of the objects in the system are inactive: they don't act on other
+ objects within the system. Processes/tasks are the obvious exception:
+ they do stuff; they access and manipulate things.
+
+ Objects other than tasks may under some circumstances also be subjects.
+ For instance an open file may send SIGIO to a task using the UID and EUID
+ given to it by a task that called ``fcntl(F_SETOWN)`` upon it. In this case,
+ the file struct will have a subjective context too.
+
+ 5. The subjective context.
+
+ A subject has an additional interpretation of its credentials. A subset
+ of its credentials forms the 'subjective context'. The subjective context
+ is used as part of the security calculation that is carried out when a
+ subject acts.
+
+ A Linux task, for example, has the FSUID, FSGID and the supplementary
+ group list for when it is acting upon a file - which are quite separate
+ from the real UID and GID that normally form the objective context of the
+ task.
+
+ 6. Actions.
+
+ Linux has a number of actions available that a subject may perform upon an
+ object. The set of actions available depends on the nature of the subject
+ and the object.
+
+ Actions include reading, writing, creating and deleting files; forking or
+ signalling and tracing tasks.
+
+ 7. Rules, access control lists and security calculations.
+
+ When a subject acts upon an object, a security calculation is made. This
+ involves taking the subjective context, the objective context and the
+ action, and searching one or more sets of rules to see whether the subject
+ is granted or denied permission to act in the desired manner on the
+ object, given those contexts.
+
+ There are two main sources of rules:
+
+ a. Discretionary access control (DAC):
+
+ Sometimes the object will include sets of rules as part of its
+ description. This is an 'Access Control List' or 'ACL'. A Linux
+ file may supply more than one ACL.
+
+ A traditional UNIX file, for example, includes a permissions mask that
+ is an abbreviated ACL with three fixed classes of subject ('user',
+ 'group' and 'other'), each of which may be granted certain privileges
+ ('read', 'write' and 'execute' - whatever those map to for the object
+ in question). UNIX file permissions do not allow the arbitrary
+ specification of subjects, however, and so are of limited use.
+
+ A Linux file might also sport a POSIX ACL. This is a list of rules
+ that grants various permissions to arbitrary subjects.
+
+ b. Mandatory access control (MAC):
+
+ The system as a whole may have one or more sets of rules that get
+ applied to all subjects and objects, regardless of their source.
+ SELinux and Smack are examples of this.
+
+ In the case of SELinux and Smack, each object is given a label as part
+ of its credentials. When an action is requested, they take the
+ subject label, the object label and the action and look for a rule
+ that says that this action is either granted or denied.
+
+
+Types of Credentials
+====================
+
+The Linux kernel supports the following types of credentials:
+
+ 1. Traditional UNIX credentials.
+
+ - Real User ID
+ - Real Group ID
+
+ The UID and GID are carried by most, if not all, Linux objects, even if in
+ some cases it has to be invented (FAT or CIFS files for example, which are
+ derived from Windows). These (mostly) define the objective context of
+ that object, with tasks being slightly different in some cases.
+
+ - Effective, Saved and FS User ID
+ - Effective, Saved and FS Group ID
+ - Supplementary groups
+
+ These are additional credentials used by tasks only. Usually, an
+ EUID/EGID/GROUPS will be used as the subjective context, and real UID/GID
+ will be used as the objective. For tasks, it should be noted that this is
+ not always true.
+
+ 2. Capabilities.
+
+ - Set of permitted capabilities
+ - Set of inheritable capabilities
+ - Set of effective capabilities
+ - Capability bounding set
+
+ These are only carried by tasks. They indicate superior capabilities
+ granted piecemeal to a task that an ordinary task wouldn't otherwise have.
+ These are manipulated implicitly by changes to the traditional UNIX
+ credentials, but can also be manipulated directly by the ``capset()``
+ system call.
+
+ The permitted capabilities are those caps that the process might grant
+ itself to its effective or permitted sets through ``capset()``. This
+ inheritable set might also be so constrained.
+
+ The effective capabilities are the ones that a task is actually allowed to
+ make use of itself.
+
+ The inheritable capabilities are the ones that may get passed across
+ ``execve()``.
+
+ The bounding set limits the capabilities that may be inherited across
+ ``execve()``, especially when a binary is executed that will execute as
+ UID 0.
+
+ 3. Secure management flags (securebits).
+
+ These are only carried by tasks. These govern the way the above
+ credentials are manipulated and inherited over certain operations such as
+ execve(). They aren't used directly as objective or subjective
+ credentials.
+
+ 4. Keys and keyrings.
+
+ These are only carried by tasks. They carry and cache security tokens
+ that don't fit into the other standard UNIX credentials. They are for
+ making such things as network filesystem keys available to the file
+ accesses performed by processes, without the necessity of ordinary
+ programs having to know about security details involved.
+
+ Keyrings are a special type of key. They carry sets of other keys and can
+ be searched for the desired key. Each process may subscribe to a number
+ of keyrings:
+
+ Per-thread keying
+ Per-process keyring
+ Per-session keyring
+
+ When a process accesses a key, if not already present, it will normally be
+ cached on one of these keyrings for future accesses to find.
+
+ For more information on using keys, see Documentation/security/keys.txt.
+
+ 5. LSM
+
+ The Linux Security Module allows extra controls to be placed over the
+ operations that a task may do. Currently Linux supports several LSM
+ options.
+
+ Some work by labelling the objects in a system and then applying sets of
+ rules (policies) that say what operations a task with one label may do to
+ an object with another label.
+
+ 6. AF_KEY
+
+ This is a socket-based approach to credential management for networking
+ stacks [RFC 2367]. It isn't discussed by this document as it doesn't
+ interact directly with task and file credentials; rather it keeps system
+ level credentials.
+
+
+When a file is opened, part of the opening task's subjective context is
+recorded in the file struct created. This allows operations using that file
+struct to use those credentials instead of the subjective context of the task
+that issued the operation. An example of this would be a file opened on a
+network filesystem where the credentials of the opened file should be presented
+to the server, regardless of who is actually doing a read or a write upon it.
+
+
+File Markings
+=============
+
+Files on disk or obtained over the network may have annotations that form the
+objective security context of that file. Depending on the type of filesystem,
+this may include one or more of the following:
+
+ * UNIX UID, GID, mode;
+ * Windows user ID;
+ * Access control list;
+ * LSM security label;
+ * UNIX exec privilege escalation bits (SUID/SGID);
+ * File capabilities exec privilege escalation bits.
+
+These are compared to the task's subjective security context, and certain
+operations allowed or disallowed as a result. In the case of execve(), the
+privilege escalation bits come into play, and may allow the resulting process
+extra privileges, based on the annotations on the executable file.
+
+
+Task Credentials
+================
+
+In Linux, all of a task's credentials are held in (uid, gid) or through
+(groups, keys, LSM security) a refcounted structure of type 'struct cred'.
+Each task points to its credentials by a pointer called 'cred' in its
+task_struct.
+
+Once a set of credentials has been prepared and committed, it may not be
+changed, barring the following exceptions:
+
+ 1. its reference count may be changed;
+
+ 2. the reference count on the group_info struct it points to may be changed;
+
+ 3. the reference count on the security data it points to may be changed;
+
+ 4. the reference count on any keyrings it points to may be changed;
+
+ 5. any keyrings it points to may be revoked, expired or have their security
+ attributes changed; and
+
+ 6. the contents of any keyrings to which it points may be changed (the whole
+ point of keyrings being a shared set of credentials, modifiable by anyone
+ with appropriate access).
+
+To alter anything in the cred struct, the copy-and-replace principle must be
+adhered to. First take a copy, then alter the copy and then use RCU to change
+the task pointer to make it point to the new copy. There are wrappers to aid
+with this (see below).
+
+A task may only alter its _own_ credentials; it is no longer permitted for a
+task to alter another's credentials. This means the ``capset()`` system call
+is no longer permitted to take any PID other than the one of the current
+process. Also ``keyctl_instantiate()`` and ``keyctl_negate()`` functions no
+longer permit attachment to process-specific keyrings in the requesting
+process as the instantiating process may need to create them.
+
+
+Immutable Credentials
+---------------------
+
+Once a set of credentials has been made public (by calling ``commit_creds()``
+for example), it must be considered immutable, barring two exceptions:
+
+ 1. The reference count may be altered.
+
+ 2. Whilst the keyring subscriptions of a set of credentials may not be
+ changed, the keyrings subscribed to may have their contents altered.
+
+To catch accidental credential alteration at compile time, struct task_struct
+has _const_ pointers to its credential sets, as does struct file. Furthermore,
+certain functions such as ``get_cred()`` and ``put_cred()`` operate on const
+pointers, thus rendering casts unnecessary, but require to temporarily ditch
+the const qualification to be able to alter the reference count.
+
+
+Accessing Task Credentials
+--------------------------
+
+A task being able to alter only its own credentials permits the current process
+to read or replace its own credentials without the need for any form of locking
+-- which simplifies things greatly. It can just call::
+
+ const struct cred *current_cred()
+
+to get a pointer to its credentials structure, and it doesn't have to release
+it afterwards.
+
+There are convenience wrappers for retrieving specific aspects of a task's
+credentials (the value is simply returned in each case)::
+
+ uid_t current_uid(void) Current's real UID
+ gid_t current_gid(void) Current's real GID
+ uid_t current_euid(void) Current's effective UID
+ gid_t current_egid(void) Current's effective GID
+ uid_t current_fsuid(void) Current's file access UID
+ gid_t current_fsgid(void) Current's file access GID
+ kernel_cap_t current_cap(void) Current's effective capabilities
+ void *current_security(void) Current's LSM security pointer
+ struct user_struct *current_user(void) Current's user account
+
+There are also convenience wrappers for retrieving specific associated pairs of
+a task's credentials::
+
+ void current_uid_gid(uid_t *, gid_t *);
+ void current_euid_egid(uid_t *, gid_t *);
+ void current_fsuid_fsgid(uid_t *, gid_t *);
+
+which return these pairs of values through their arguments after retrieving
+them from the current task's credentials.
+
+
+In addition, there is a function for obtaining a reference on the current
+process's current set of credentials::
+
+ const struct cred *get_current_cred(void);
+
+and functions for getting references to one of the credentials that don't
+actually live in struct cred::
+
+ struct user_struct *get_current_user(void);
+ struct group_info *get_current_groups(void);
+
+which get references to the current process's user accounting structure and
+supplementary groups list respectively.
+
+Once a reference has been obtained, it must be released with ``put_cred()``,
+``free_uid()`` or ``put_group_info()`` as appropriate.
+
+
+Accessing Another Task's Credentials
+------------------------------------
+
+Whilst a task may access its own credentials without the need for locking, the
+same is not true of a task wanting to access another task's credentials. It
+must use the RCU read lock and ``rcu_dereference()``.
+
+The ``rcu_dereference()`` is wrapped by::
+
+ const struct cred *__task_cred(struct task_struct *task);
+
+This should be used inside the RCU read lock, as in the following example::
+
+ void foo(struct task_struct *t, struct foo_data *f)
+ {
+ const struct cred *tcred;
+ ...
+ rcu_read_lock();
+ tcred = __task_cred(t);
+ f->uid = tcred->uid;
+ f->gid = tcred->gid;
+ f->groups = get_group_info(tcred->groups);
+ rcu_read_unlock();
+ ...
+ }
+
+Should it be necessary to hold another task's credentials for a long period of
+time, and possibly to sleep whilst doing so, then the caller should get a
+reference on them using::
+
+ const struct cred *get_task_cred(struct task_struct *task);
+
+This does all the RCU magic inside of it. The caller must call put_cred() on
+the credentials so obtained when they're finished with.
+
+.. note::
+ The result of ``__task_cred()`` should not be passed directly to
+ ``get_cred()`` as this may race with ``commit_cred()``.
+
+There are a couple of convenience functions to access bits of another task's
+credentials, hiding the RCU magic from the caller::
+
+ uid_t task_uid(task) Task's real UID
+ uid_t task_euid(task) Task's effective UID
+
+If the caller is holding the RCU read lock at the time anyway, then::
+
+ __task_cred(task)->uid
+ __task_cred(task)->euid
+
+should be used instead. Similarly, if multiple aspects of a task's credentials
+need to be accessed, RCU read lock should be used, ``__task_cred()`` called,
+the result stored in a temporary pointer and then the credential aspects called
+from that before dropping the lock. This prevents the potentially expensive
+RCU magic from being invoked multiple times.
+
+Should some other single aspect of another task's credentials need to be
+accessed, then this can be used::
+
+ task_cred_xxx(task, member)
+
+where 'member' is a non-pointer member of the cred struct. For instance::
+
+ uid_t task_cred_xxx(task, suid);
+
+will retrieve 'struct cred::suid' from the task, doing the appropriate RCU
+magic. This may not be used for pointer members as what they point to may
+disappear the moment the RCU read lock is dropped.
+
+
+Altering Credentials
+--------------------
+
+As previously mentioned, a task may only alter its own credentials, and may not
+alter those of another task. This means that it doesn't need to use any
+locking to alter its own credentials.
+
+To alter the current process's credentials, a function should first prepare a
+new set of credentials by calling::
+
+ struct cred *prepare_creds(void);
+
+this locks current->cred_replace_mutex and then allocates and constructs a
+duplicate of the current process's credentials, returning with the mutex still
+held if successful. It returns NULL if not successful (out of memory).
+
+The mutex prevents ``ptrace()`` from altering the ptrace state of a process
+whilst security checks on credentials construction and changing is taking place
+as the ptrace state may alter the outcome, particularly in the case of
+``execve()``.
+
+The new credentials set should be altered appropriately, and any security
+checks and hooks done. Both the current and the proposed sets of credentials
+are available for this purpose as current_cred() will return the current set
+still at this point.
+
+
+When the credential set is ready, it should be committed to the current process
+by calling::
+
+ int commit_creds(struct cred *new);
+
+This will alter various aspects of the credentials and the process, giving the
+LSM a chance to do likewise, then it will use ``rcu_assign_pointer()`` to
+actually commit the new credentials to ``current->cred``, it will release
+``current->cred_replace_mutex`` to allow ``ptrace()`` to take place, and it
+will notify the scheduler and others of the changes.
+
+This function is guaranteed to return 0, so that it can be tail-called at the
+end of such functions as ``sys_setresuid()``.
+
+Note that this function consumes the caller's reference to the new credentials.
+The caller should _not_ call ``put_cred()`` on the new credentials afterwards.
+
+Furthermore, once this function has been called on a new set of credentials,
+those credentials may _not_ be changed further.
+
+
+Should the security checks fail or some other error occur after
+``prepare_creds()`` has been called, then the following function should be
+invoked::
+
+ void abort_creds(struct cred *new);
+
+This releases the lock on ``current->cred_replace_mutex`` that
+``prepare_creds()`` got and then releases the new credentials.
+
+
+A typical credentials alteration function would look something like this::
+
+ int alter_suid(uid_t suid)
+ {
+ struct cred *new;
+ int ret;
+
+ new = prepare_creds();
+ if (!new)
+ return -ENOMEM;
+
+ new->suid = suid;
+ ret = security_alter_suid(new);
+ if (ret < 0) {
+ abort_creds(new);
+ return ret;
+ }
+
+ return commit_creds(new);
+ }
+
+
+Managing Credentials
+--------------------
+
+There are some functions to help manage credentials:
+
+ - ``void put_cred(const struct cred *cred);``
+
+ This releases a reference to the given set of credentials. If the
+ reference count reaches zero, the credentials will be scheduled for
+ destruction by the RCU system.
+
+ - ``const struct cred *get_cred(const struct cred *cred);``
+
+ This gets a reference on a live set of credentials, returning a pointer to
+ that set of credentials.
+
+ - ``struct cred *get_new_cred(struct cred *cred);``
+
+ This gets a reference on a set of credentials that is under construction
+ and is thus still mutable, returning a pointer to that set of credentials.
+
+
+Open File Credentials
+=====================
+
+When a new file is opened, a reference is obtained on the opening task's
+credentials and this is attached to the file struct as ``f_cred`` in place of
+``f_uid`` and ``f_gid``. Code that used to access ``file->f_uid`` and
+``file->f_gid`` should now access ``file->f_cred->fsuid`` and
+``file->f_cred->fsgid``.
+
+It is safe to access ``f_cred`` without the use of RCU or locking because the
+pointer will not change over the lifetime of the file struct, and nor will the
+contents of the cred struct pointed to, barring the exceptions listed above
+(see the Task Credentials section).
+
+
+Overriding the VFS's Use of Credentials
+=======================================
+
+Under some circumstances it is desirable to override the credentials used by
+the VFS, and that can be done by calling into such as ``vfs_mkdir()`` with a
+different set of credentials. This is done in the following places:
+
+ * ``sys_faccessat()``.
+ * ``do_coredump()``.
+ * nfs4recover.c.
diff --git a/Documentation/security/credentials.txt b/Documentation/security/credentials.txt
deleted file mode 100644
index 86257052e31a..000000000000
--- a/Documentation/security/credentials.txt
+++ /dev/null
@@ -1,581 +0,0 @@
- ====================
- CREDENTIALS IN LINUX
- ====================
-
-By: David Howells <dhowells@redhat.com>
-
-Contents:
-
- (*) Overview.
-
- (*) Types of credentials.
-
- (*) File markings.
-
- (*) Task credentials.
-
- - Immutable credentials.
- - Accessing task credentials.
- - Accessing another task's credentials.
- - Altering credentials.
- - Managing credentials.
-
- (*) Open file credentials.
-
- (*) Overriding the VFS's use of credentials.
-
-
-========
-OVERVIEW
-========
-
-There are several parts to the security check performed by Linux when one
-object acts upon another:
-
- (1) Objects.
-
- Objects are things in the system that may be acted upon directly by
- userspace programs. Linux has a variety of actionable objects, including:
-
- - Tasks
- - Files/inodes
- - Sockets
- - Message queues
- - Shared memory segments
- - Semaphores
- - Keys
-
- As a part of the description of all these objects there is a set of
- credentials. What's in the set depends on the type of object.
-
- (2) Object ownership.
-
- Amongst the credentials of most objects, there will be a subset that
- indicates the ownership of that object. This is used for resource
- accounting and limitation (disk quotas and task rlimits for example).
-
- In a standard UNIX filesystem, for instance, this will be defined by the
- UID marked on the inode.
-
- (3) The objective context.
-
- Also amongst the credentials of those objects, there will be a subset that
- indicates the 'objective context' of that object. This may or may not be
- the same set as in (2) - in standard UNIX files, for instance, this is the
- defined by the UID and the GID marked on the inode.
-
- The objective context is used as part of the security calculation that is
- carried out when an object is acted upon.
-
- (4) Subjects.
-
- A subject is an object that is acting upon another object.
-
- Most of the objects in the system are inactive: they don't act on other
- objects within the system. Processes/tasks are the obvious exception:
- they do stuff; they access and manipulate things.
-
- Objects other than tasks may under some circumstances also be subjects.
- For instance an open file may send SIGIO to a task using the UID and EUID
- given to it by a task that called fcntl(F_SETOWN) upon it. In this case,
- the file struct will have a subjective context too.
-
- (5) The subjective context.
-
- A subject has an additional interpretation of its credentials. A subset
- of its credentials forms the 'subjective context'. The subjective context
- is used as part of the security calculation that is carried out when a
- subject acts.
-
- A Linux task, for example, has the FSUID, FSGID and the supplementary
- group list for when it is acting upon a file - which are quite separate
- from the real UID and GID that normally form the objective context of the
- task.
-
- (6) Actions.
-
- Linux has a number of actions available that a subject may perform upon an
- object. The set of actions available depends on the nature of the subject
- and the object.
-
- Actions include reading, writing, creating and deleting files; forking or
- signalling and tracing tasks.
-
- (7) Rules, access control lists and security calculations.
-
- When a subject acts upon an object, a security calculation is made. This
- involves taking the subjective context, the objective context and the
- action, and searching one or more sets of rules to see whether the subject
- is granted or denied permission to act in the desired manner on the
- object, given those contexts.
-
- There are two main sources of rules:
-
- (a) Discretionary access control (DAC):
-
- Sometimes the object will include sets of rules as part of its
- description. This is an 'Access Control List' or 'ACL'. A Linux
- file may supply more than one ACL.
-
- A traditional UNIX file, for example, includes a permissions mask that
- is an abbreviated ACL with three fixed classes of subject ('user',
- 'group' and 'other'), each of which may be granted certain privileges
- ('read', 'write' and 'execute' - whatever those map to for the object
- in question). UNIX file permissions do not allow the arbitrary
- specification of subjects, however, and so are of limited use.
-
- A Linux file might also sport a POSIX ACL. This is a list of rules
- that grants various permissions to arbitrary subjects.
-
- (b) Mandatory access control (MAC):
-
- The system as a whole may have one or more sets of rules that get
- applied to all subjects and objects, regardless of their source.
- SELinux and Smack are examples of this.
-
- In the case of SELinux and Smack, each object is given a label as part
- of its credentials. When an action is requested, they take the
- subject label, the object label and the action and look for a rule
- that says that this action is either granted or denied.
-
-
-====================
-TYPES OF CREDENTIALS
-====================
-
-The Linux kernel supports the following types of credentials:
-
- (1) Traditional UNIX credentials.
-
- Real User ID
- Real Group ID
-
- The UID and GID are carried by most, if not all, Linux objects, even if in
- some cases it has to be invented (FAT or CIFS files for example, which are
- derived from Windows). These (mostly) define the objective context of
- that object, with tasks being slightly different in some cases.
-
- Effective, Saved and FS User ID
- Effective, Saved and FS Group ID
- Supplementary groups
-
- These are additional credentials used by tasks only. Usually, an
- EUID/EGID/GROUPS will be used as the subjective context, and real UID/GID
- will be used as the objective. For tasks, it should be noted that this is
- not always true.
-
- (2) Capabilities.
-
- Set of permitted capabilities
- Set of inheritable capabilities
- Set of effective capabilities
- Capability bounding set
-
- These are only carried by tasks. They indicate superior capabilities
- granted piecemeal to a task that an ordinary task wouldn't otherwise have.
- These are manipulated implicitly by changes to the traditional UNIX
- credentials, but can also be manipulated directly by the capset() system
- call.
-
- The permitted capabilities are those caps that the process might grant
- itself to its effective or permitted sets through capset(). This
- inheritable set might also be so constrained.
-
- The effective capabilities are the ones that a task is actually allowed to
- make use of itself.
-
- The inheritable capabilities are the ones that may get passed across
- execve().
-
- The bounding set limits the capabilities that may be inherited across
- execve(), especially when a binary is executed that will execute as UID 0.
-
- (3) Secure management flags (securebits).
-
- These are only carried by tasks. These govern the way the above
- credentials are manipulated and inherited over certain operations such as
- execve(). They aren't used directly as objective or subjective
- credentials.
-
- (4) Keys and keyrings.
-
- These are only carried by tasks. They carry and cache security tokens
- that don't fit into the other standard UNIX credentials. They are for
- making such things as network filesystem keys available to the file
- accesses performed by processes, without the necessity of ordinary
- programs having to know about security details involved.
-
- Keyrings are a special type of key. They carry sets of other keys and can
- be searched for the desired key. Each process may subscribe to a number
- of keyrings:
-
- Per-thread keying
- Per-process keyring
- Per-session keyring
-
- When a process accesses a key, if not already present, it will normally be
- cached on one of these keyrings for future accesses to find.
-
- For more information on using keys, see Documentation/security/keys.txt.
-
- (5) LSM
-
- The Linux Security Module allows extra controls to be placed over the
- operations that a task may do. Currently Linux supports several LSM
- options.
-
- Some work by labelling the objects in a system and then applying sets of
- rules (policies) that say what operations a task with one label may do to
- an object with another label.
-
- (6) AF_KEY
-
- This is a socket-based approach to credential management for networking
- stacks [RFC 2367]. It isn't discussed by this document as it doesn't
- interact directly with task and file credentials; rather it keeps system
- level credentials.
-
-
-When a file is opened, part of the opening task's subjective context is
-recorded in the file struct created. This allows operations using that file
-struct to use those credentials instead of the subjective context of the task
-that issued the operation. An example of this would be a file opened on a
-network filesystem where the credentials of the opened file should be presented
-to the server, regardless of who is actually doing a read or a write upon it.
-
-
-=============
-FILE MARKINGS
-=============
-
-Files on disk or obtained over the network may have annotations that form the
-objective security context of that file. Depending on the type of filesystem,
-this may include one or more of the following:
-
- (*) UNIX UID, GID, mode;
-
- (*) Windows user ID;
-
- (*) Access control list;
-
- (*) LSM security label;
-
- (*) UNIX exec privilege escalation bits (SUID/SGID);
-
- (*) File capabilities exec privilege escalation bits.
-
-These are compared to the task's subjective security context, and certain
-operations allowed or disallowed as a result. In the case of execve(), the
-privilege escalation bits come into play, and may allow the resulting process
-extra privileges, based on the annotations on the executable file.
-
-
-================
-TASK CREDENTIALS
-================
-
-In Linux, all of a task's credentials are held in (uid, gid) or through
-(groups, keys, LSM security) a refcounted structure of type 'struct cred'.
-Each task points to its credentials by a pointer called 'cred' in its
-task_struct.
-
-Once a set of credentials has been prepared and committed, it may not be
-changed, barring the following exceptions:
-
- (1) its reference count may be changed;
-
- (2) the reference count on the group_info struct it points to may be changed;
-
- (3) the reference count on the security data it points to may be changed;
-
- (4) the reference count on any keyrings it points to may be changed;
-
- (5) any keyrings it points to may be revoked, expired or have their security
- attributes changed; and
-
- (6) the contents of any keyrings to which it points may be changed (the whole
- point of keyrings being a shared set of credentials, modifiable by anyone
- with appropriate access).
-
-To alter anything in the cred struct, the copy-and-replace principle must be
-adhered to. First take a copy, then alter the copy and then use RCU to change
-the task pointer to make it point to the new copy. There are wrappers to aid
-with this (see below).
-
-A task may only alter its _own_ credentials; it is no longer permitted for a
-task to alter another's credentials. This means the capset() system call is no
-longer permitted to take any PID other than the one of the current process.
-Also keyctl_instantiate() and keyctl_negate() functions no longer permit
-attachment to process-specific keyrings in the requesting process as the
-instantiating process may need to create them.
-
-
-IMMUTABLE CREDENTIALS
----------------------
-
-Once a set of credentials has been made public (by calling commit_creds() for
-example), it must be considered immutable, barring two exceptions:
-
- (1) The reference count may be altered.
-
- (2) Whilst the keyring subscriptions of a set of credentials may not be
- changed, the keyrings subscribed to may have their contents altered.
-
-To catch accidental credential alteration at compile time, struct task_struct
-has _const_ pointers to its credential sets, as does struct file. Furthermore,
-certain functions such as get_cred() and put_cred() operate on const pointers,
-thus rendering casts unnecessary, but require to temporarily ditch the const
-qualification to be able to alter the reference count.
-
-
-ACCESSING TASK CREDENTIALS
---------------------------
-
-A task being able to alter only its own credentials permits the current process
-to read or replace its own credentials without the need for any form of locking
-- which simplifies things greatly. It can just call:
-
- const struct cred *current_cred()
-
-to get a pointer to its credentials structure, and it doesn't have to release
-it afterwards.
-
-There are convenience wrappers for retrieving specific aspects of a task's
-credentials (the value is simply returned in each case):
-
- uid_t current_uid(void) Current's real UID
- gid_t current_gid(void) Current's real GID
- uid_t current_euid(void) Current's effective UID
- gid_t current_egid(void) Current's effective GID
- uid_t current_fsuid(void) Current's file access UID
- gid_t current_fsgid(void) Current's file access GID
- kernel_cap_t current_cap(void) Current's effective capabilities
- void *current_security(void) Current's LSM security pointer
- struct user_struct *current_user(void) Current's user account
-
-There are also convenience wrappers for retrieving specific associated pairs of
-a task's credentials:
-
- void current_uid_gid(uid_t *, gid_t *);
- void current_euid_egid(uid_t *, gid_t *);
- void current_fsuid_fsgid(uid_t *, gid_t *);
-
-which return these pairs of values through their arguments after retrieving
-them from the current task's credentials.
-
-
-In addition, there is a function for obtaining a reference on the current
-process's current set of credentials:
-
- const struct cred *get_current_cred(void);
-
-and functions for getting references to one of the credentials that don't
-actually live in struct cred:
-
- struct user_struct *get_current_user(void);
- struct group_info *get_current_groups(void);
-
-which get references to the current process's user accounting structure and
-supplementary groups list respectively.
-
-Once a reference has been obtained, it must be released with put_cred(),
-free_uid() or put_group_info() as appropriate.
-
-
-ACCESSING ANOTHER TASK'S CREDENTIALS
-------------------------------------
-
-Whilst a task may access its own credentials without the need for locking, the
-same is not true of a task wanting to access another task's credentials. It
-must use the RCU read lock and rcu_dereference().
-
-The rcu_dereference() is wrapped by:
-
- const struct cred *__task_cred(struct task_struct *task);
-
-This should be used inside the RCU read lock, as in the following example:
-
- void foo(struct task_struct *t, struct foo_data *f)
- {
- const struct cred *tcred;
- ...
- rcu_read_lock();
- tcred = __task_cred(t);
- f->uid = tcred->uid;
- f->gid = tcred->gid;
- f->groups = get_group_info(tcred->groups);
- rcu_read_unlock();
- ...
- }
-
-Should it be necessary to hold another task's credentials for a long period of
-time, and possibly to sleep whilst doing so, then the caller should get a
-reference on them using:
-
- const struct cred *get_task_cred(struct task_struct *task);
-
-This does all the RCU magic inside of it. The caller must call put_cred() on
-the credentials so obtained when they're finished with.
-
- [*] Note: The result of __task_cred() should not be passed directly to
- get_cred() as this may race with commit_cred().
-
-There are a couple of convenience functions to access bits of another task's
-credentials, hiding the RCU magic from the caller:
-
- uid_t task_uid(task) Task's real UID
- uid_t task_euid(task) Task's effective UID
-
-If the caller is holding the RCU read lock at the time anyway, then:
-
- __task_cred(task)->uid
- __task_cred(task)->euid
-
-should be used instead. Similarly, if multiple aspects of a task's credentials
-need to be accessed, RCU read lock should be used, __task_cred() called, the
-result stored in a temporary pointer and then the credential aspects called
-from that before dropping the lock. This prevents the potentially expensive
-RCU magic from being invoked multiple times.
-
-Should some other single aspect of another task's credentials need to be
-accessed, then this can be used:
-
- task_cred_xxx(task, member)
-
-where 'member' is a non-pointer member of the cred struct. For instance:
-
- uid_t task_cred_xxx(task, suid);
-
-will retrieve 'struct cred::suid' from the task, doing the appropriate RCU
-magic. This may not be used for pointer members as what they point to may
-disappear the moment the RCU read lock is dropped.
-
-
-ALTERING CREDENTIALS
---------------------
-
-As previously mentioned, a task may only alter its own credentials, and may not
-alter those of another task. This means that it doesn't need to use any
-locking to alter its own credentials.
-
-To alter the current process's credentials, a function should first prepare a
-new set of credentials by calling:
-
- struct cred *prepare_creds(void);
-
-this locks current->cred_replace_mutex and then allocates and constructs a
-duplicate of the current process's credentials, returning with the mutex still
-held if successful. It returns NULL if not successful (out of memory).
-
-The mutex prevents ptrace() from altering the ptrace state of a process whilst
-security checks on credentials construction and changing is taking place as
-the ptrace state may alter the outcome, particularly in the case of execve().
-
-The new credentials set should be altered appropriately, and any security
-checks and hooks done. Both the current and the proposed sets of credentials
-are available for this purpose as current_cred() will return the current set
-still at this point.
-
-
-When the credential set is ready, it should be committed to the current process
-by calling:
-
- int commit_creds(struct cred *new);
-
-This will alter various aspects of the credentials and the process, giving the
-LSM a chance to do likewise, then it will use rcu_assign_pointer() to actually
-commit the new credentials to current->cred, it will release
-current->cred_replace_mutex to allow ptrace() to take place, and it will notify
-the scheduler and others of the changes.
-
-This function is guaranteed to return 0, so that it can be tail-called at the
-end of such functions as sys_setresuid().
-
-Note that this function consumes the caller's reference to the new credentials.
-The caller should _not_ call put_cred() on the new credentials afterwards.
-
-Furthermore, once this function has been called on a new set of credentials,
-those credentials may _not_ be changed further.
-
-
-Should the security checks fail or some other error occur after prepare_creds()
-has been called, then the following function should be invoked:
-
- void abort_creds(struct cred *new);
-
-This releases the lock on current->cred_replace_mutex that prepare_creds() got
-and then releases the new credentials.
-
-
-A typical credentials alteration function would look something like this:
-
- int alter_suid(uid_t suid)
- {
- struct cred *new;
- int ret;
-
- new = prepare_creds();
- if (!new)
- return -ENOMEM;
-
- new->suid = suid;
- ret = security_alter_suid(new);
- if (ret < 0) {
- abort_creds(new);
- return ret;
- }
-
- return commit_creds(new);
- }
-
-
-MANAGING CREDENTIALS
---------------------
-
-There are some functions to help manage credentials:
-
- (*) void put_cred(const struct cred *cred);
-
- This releases a reference to the given set of credentials. If the
- reference count reaches zero, the credentials will be scheduled for
- destruction by the RCU system.
-
- (*) const struct cred *get_cred(const struct cred *cred);
-
- This gets a reference on a live set of credentials, returning a pointer to
- that set of credentials.
-
- (*) struct cred *get_new_cred(struct cred *cred);
-
- This gets a reference on a set of credentials that is under construction
- and is thus still mutable, returning a pointer to that set of credentials.
-
-
-=====================
-OPEN FILE CREDENTIALS
-=====================
-
-When a new file is opened, a reference is obtained on the opening task's
-credentials and this is attached to the file struct as 'f_cred' in place of
-'f_uid' and 'f_gid'. Code that used to access file->f_uid and file->f_gid
-should now access file->f_cred->fsuid and file->f_cred->fsgid.
-
-It is safe to access f_cred without the use of RCU or locking because the
-pointer will not change over the lifetime of the file struct, and nor will the
-contents of the cred struct pointed to, barring the exceptions listed above
-(see the Task Credentials section).
-
-
-=======================================
-OVERRIDING THE VFS'S USE OF CREDENTIALS
-=======================================
-
-Under some circumstances it is desirable to override the credentials used by
-the VFS, and that can be done by calling into such as vfs_mkdir() with a
-different set of credentials. This is done in the following places:
-
- (*) sys_faccessat().
-
- (*) do_coredump().
-
- (*) nfs4recover.c.
diff --git a/Documentation/security/index.rst b/Documentation/security/index.rst
index 9bae6bb20e7f..298a94a33f05 100644
--- a/Documentation/security/index.rst
+++ b/Documentation/security/index.rst
@@ -1,7 +1,13 @@
======================
-Security documentation
+Security Documentation
======================
.. toctree::
+ :maxdepth: 1
+ credentials
+ IMA-templates
+ keys/index
+ LSM
+ self-protection
tpm/index
diff --git a/Documentation/security/keys-ecryptfs.txt b/Documentation/security/keys-ecryptfs.txt
deleted file mode 100644
index c3bbeba63562..000000000000
--- a/Documentation/security/keys-ecryptfs.txt
+++ /dev/null
@@ -1,68 +0,0 @@
- Encrypted keys for the eCryptfs filesystem
-
-ECryptfs is a stacked filesystem which transparently encrypts and decrypts each
-file using a randomly generated File Encryption Key (FEK).
-
-Each FEK is in turn encrypted with a File Encryption Key Encryption Key (FEFEK)
-either in kernel space or in user space with a daemon called 'ecryptfsd'. In
-the former case the operation is performed directly by the kernel CryptoAPI
-using a key, the FEFEK, derived from a user prompted passphrase; in the latter
-the FEK is encrypted by 'ecryptfsd' with the help of external libraries in order
-to support other mechanisms like public key cryptography, PKCS#11 and TPM based
-operations.
-
-The data structure defined by eCryptfs to contain information required for the
-FEK decryption is called authentication token and, currently, can be stored in a
-kernel key of the 'user' type, inserted in the user's session specific keyring
-by the userspace utility 'mount.ecryptfs' shipped with the package
-'ecryptfs-utils'.
-
-The 'encrypted' key type has been extended with the introduction of the new
-format 'ecryptfs' in order to be used in conjunction with the eCryptfs
-filesystem. Encrypted keys of the newly introduced format store an
-authentication token in its payload with a FEFEK randomly generated by the
-kernel and protected by the parent master key.
-
-In order to avoid known-plaintext attacks, the datablob obtained through
-commands 'keyctl print' or 'keyctl pipe' does not contain the overall
-authentication token, which content is well known, but only the FEFEK in
-encrypted form.
-
-The eCryptfs filesystem may really benefit from using encrypted keys in that the
-required key can be securely generated by an Administrator and provided at boot
-time after the unsealing of a 'trusted' key in order to perform the mount in a
-controlled environment. Another advantage is that the key is not exposed to
-threats of malicious software, because it is available in clear form only at
-kernel level.
-
-Usage:
- keyctl add encrypted name "new ecryptfs key-type:master-key-name keylen" ring
- keyctl add encrypted name "load hex_blob" ring
- keyctl update keyid "update key-type:master-key-name"
-
-name:= '<16 hexadecimal characters>'
-key-type:= 'trusted' | 'user'
-keylen:= 64
-
-
-Example of encrypted key usage with the eCryptfs filesystem:
-
-Create an encrypted key "1000100010001000" of length 64 bytes with format
-'ecryptfs' and save it using a previously loaded user key "test":
-
- $ keyctl add encrypted 1000100010001000 "new ecryptfs user:test 64" @u
- 19184530
-
- $ keyctl print 19184530
- ecryptfs user:test 64 490045d4bfe48c99f0d465fbbbb79e7500da954178e2de0697
- dd85091f5450a0511219e9f7cd70dcd498038181466f78ac8d4c19504fcc72402bfc41c2
- f253a41b7507ccaa4b2b03fff19a69d1cc0b16e71746473f023a95488b6edfd86f7fdd40
- 9d292e4bacded1258880122dd553a661
-
- $ keyctl pipe 19184530 > ecryptfs.blob
-
-Mount an eCryptfs filesystem using the created encrypted key "1000100010001000"
-into the '/secret' directory:
-
- $ mount -i -t ecryptfs -oecryptfs_sig=1000100010001000,\
- ecryptfs_cipher=aes,ecryptfs_key_bytes=32 /secret /secret
diff --git a/Documentation/security/keys-request-key.txt b/Documentation/security/keys-request-key.txt
deleted file mode 100644
index 51987bfecfed..000000000000
--- a/Documentation/security/keys-request-key.txt
+++ /dev/null
@@ -1,202 +0,0 @@
- ===================
- KEY REQUEST SERVICE
- ===================
-
-The key request service is part of the key retention service (refer to
-Documentation/security/keys.txt). This document explains more fully how
-the requesting algorithm works.
-
-The process starts by either the kernel requesting a service by calling
-request_key*():
-
- struct key *request_key(const struct key_type *type,
- const char *description,
- const char *callout_info);
-
-or:
-
- struct key *request_key_with_auxdata(const struct key_type *type,
- const char *description,
- const char *callout_info,
- size_t callout_len,
- void *aux);
-
-or:
-
- struct key *request_key_async(const struct key_type *type,
- const char *description,
- const char *callout_info,
- size_t callout_len);
-
-or:
-
- struct key *request_key_async_with_auxdata(const struct key_type *type,
- const char *description,
- const char *callout_info,
- size_t callout_len,
- void *aux);
-
-Or by userspace invoking the request_key system call:
-
- key_serial_t request_key(const char *type,
- const char *description,
- const char *callout_info,
- key_serial_t dest_keyring);
-
-The main difference between the access points is that the in-kernel interface
-does not need to link the key to a keyring to prevent it from being immediately
-destroyed. The kernel interface returns a pointer directly to the key, and
-it's up to the caller to destroy the key.
-
-The request_key*_with_auxdata() calls are like the in-kernel request_key*()
-calls, except that they permit auxiliary data to be passed to the upcaller (the
-default is NULL). This is only useful for those key types that define their
-own upcall mechanism rather than using /sbin/request-key.
-
-The two async in-kernel calls may return keys that are still in the process of
-being constructed. The two non-async ones will wait for construction to
-complete first.
-
-The userspace interface links the key to a keyring associated with the process
-to prevent the key from going away, and returns the serial number of the key to
-the caller.
-
-
-The following example assumes that the key types involved don't define their
-own upcall mechanisms. If they do, then those should be substituted for the
-forking and execution of /sbin/request-key.
-
-
-===========
-THE PROCESS
-===========
-
-A request proceeds in the following manner:
-
- (1) Process A calls request_key() [the userspace syscall calls the kernel
- interface].
-
- (2) request_key() searches the process's subscribed keyrings to see if there's
- a suitable key there. If there is, it returns the key. If there isn't,
- and callout_info is not set, an error is returned. Otherwise the process
- proceeds to the next step.
-
- (3) request_key() sees that A doesn't have the desired key yet, so it creates
- two things:
-
- (a) An uninstantiated key U of requested type and description.
-
- (b) An authorisation key V that refers to key U and notes that process A
- is the context in which key U should be instantiated and secured, and
- from which associated key requests may be satisfied.
-
- (4) request_key() then forks and executes /sbin/request-key with a new session
- keyring that contains a link to auth key V.
-
- (5) /sbin/request-key assumes the authority associated with key U.
-
- (6) /sbin/request-key execs an appropriate program to perform the actual
- instantiation.
-
- (7) The program may want to access another key from A's context (say a
- Kerberos TGT key). It just requests the appropriate key, and the keyring
- search notes that the session keyring has auth key V in its bottom level.
-
- This will permit it to then search the keyrings of process A with the
- UID, GID, groups and security info of process A as if it was process A,
- and come up with key W.
-
- (8) The program then does what it must to get the data with which to
- instantiate key U, using key W as a reference (perhaps it contacts a
- Kerberos server using the TGT) and then instantiates key U.
-
- (9) Upon instantiating key U, auth key V is automatically revoked so that it
- may not be used again.
-
-(10) The program then exits 0 and request_key() deletes key V and returns key
- U to the caller.
-
-This also extends further. If key W (step 7 above) didn't exist, key W would
-be created uninstantiated, another auth key (X) would be created (as per step
-3) and another copy of /sbin/request-key spawned (as per step 4); but the
-context specified by auth key X will still be process A, as it was in auth key
-V.
-
-This is because process A's keyrings can't simply be attached to
-/sbin/request-key at the appropriate places because (a) execve will discard two
-of them, and (b) it requires the same UID/GID/Groups all the way through.
-
-
-====================================
-NEGATIVE INSTANTIATION AND REJECTION
-====================================
-
-Rather than instantiating a key, it is possible for the possessor of an
-authorisation key to negatively instantiate a key that's under construction.
-This is a short duration placeholder that causes any attempt at re-requesting
-the key whilst it exists to fail with error ENOKEY if negated or the specified
-error if rejected.
-
-This is provided to prevent excessive repeated spawning of /sbin/request-key
-processes for a key that will never be obtainable.
-
-Should the /sbin/request-key process exit anything other than 0 or die on a
-signal, the key under construction will be automatically negatively
-instantiated for a short amount of time.
-
-
-====================
-THE SEARCH ALGORITHM
-====================
-
-A search of any particular keyring proceeds in the following fashion:
-
- (1) When the key management code searches for a key (keyring_search_aux) it
- firstly calls key_permission(SEARCH) on the keyring it's starting with,
- if this denies permission, it doesn't search further.
-
- (2) It considers all the non-keyring keys within that keyring and, if any key
- matches the criteria specified, calls key_permission(SEARCH) on it to see
- if the key is allowed to be found. If it is, that key is returned; if
- not, the search continues, and the error code is retained if of higher
- priority than the one currently set.
-
- (3) It then considers all the keyring-type keys in the keyring it's currently
- searching. It calls key_permission(SEARCH) on each keyring, and if this
- grants permission, it recurses, executing steps (2) and (3) on that
- keyring.
-
-The process stops immediately a valid key is found with permission granted to
-use it. Any error from a previous match attempt is discarded and the key is
-returned.
-
-When search_process_keyrings() is invoked, it performs the following searches
-until one succeeds:
-
- (1) If extant, the process's thread keyring is searched.
-
- (2) If extant, the process's process keyring is searched.
-
- (3) The process's session keyring is searched.
-
- (4) If the process has assumed the authority associated with a request_key()
- authorisation key then:
-
- (a) If extant, the calling process's thread keyring is searched.
-
- (b) If extant, the calling process's process keyring is searched.
-
- (c) The calling process's session keyring is searched.
-
-The moment one succeeds, all pending errors are discarded and the found key is
-returned.
-
-Only if all these fail does the whole thing fail with the highest priority
-error. Note that several errors may have come from LSM.
-
-The error priority is:
-
- EKEYREVOKED > EKEYEXPIRED > ENOKEY
-
-EACCES/EPERM are only returned on a direct search of a specific keyring where
-the basal keyring does not grant Search permission.
diff --git a/Documentation/security/keys-trusted-encrypted.txt b/Documentation/security/keys-trusted-encrypted.txt
deleted file mode 100644
index b20a993a32af..000000000000
--- a/Documentation/security/keys-trusted-encrypted.txt
+++ /dev/null
@@ -1,167 +0,0 @@
- Trusted and Encrypted Keys
-
-Trusted and Encrypted Keys are two new key types added to the existing kernel
-key ring service. Both of these new types are variable length symmetric keys,
-and in both cases all keys are created in the kernel, and user space sees,
-stores, and loads only encrypted blobs. Trusted Keys require the availability
-of a Trusted Platform Module (TPM) chip for greater security, while Encrypted
-Keys can be used on any system. All user level blobs, are displayed and loaded
-in hex ascii for convenience, and are integrity verified.
-
-Trusted Keys use a TPM both to generate and to seal the keys. Keys are sealed
-under a 2048 bit RSA key in the TPM, and optionally sealed to specified PCR
-(integrity measurement) values, and only unsealed by the TPM, if PCRs and blob
-integrity verifications match. A loaded Trusted Key can be updated with new
-(future) PCR values, so keys are easily migrated to new pcr values, such as
-when the kernel and initramfs are updated. The same key can have many saved
-blobs under different PCR values, so multiple boots are easily supported.
-
-By default, trusted keys are sealed under the SRK, which has the default
-authorization value (20 zeros). This can be set at takeownership time with the
-trouser's utility: "tpm_takeownership -u -z".
-
-Usage:
- keyctl add trusted name "new keylen [options]" ring
- keyctl add trusted name "load hex_blob [pcrlock=pcrnum]" ring
- keyctl update key "update [options]"
- keyctl print keyid
-
- options:
- keyhandle= ascii hex value of sealing key default 0x40000000 (SRK)
- keyauth= ascii hex auth for sealing key default 0x00...i
- (40 ascii zeros)
- blobauth= ascii hex auth for sealed data default 0x00...
- (40 ascii zeros)
- pcrinfo= ascii hex of PCR_INFO or PCR_INFO_LONG (no default)
- pcrlock= pcr number to be extended to "lock" blob
- migratable= 0|1 indicating permission to reseal to new PCR values,
- default 1 (resealing allowed)
- hash= hash algorithm name as a string. For TPM 1.x the only
- allowed value is sha1. For TPM 2.x the allowed values
- are sha1, sha256, sha384, sha512 and sm3-256.
- policydigest= digest for the authorization policy. must be calculated
- with the same hash algorithm as specified by the 'hash='
- option.
- policyhandle= handle to an authorization policy session that defines the
- same policy and with the same hash algorithm as was used to
- seal the key.
-
-"keyctl print" returns an ascii hex copy of the sealed key, which is in standard
-TPM_STORED_DATA format. The key length for new keys are always in bytes.
-Trusted Keys can be 32 - 128 bytes (256 - 1024 bits), the upper limit is to fit
-within the 2048 bit SRK (RSA) keylength, with all necessary structure/padding.
-
-Encrypted keys do not depend on a TPM, and are faster, as they use AES for
-encryption/decryption. New keys are created from kernel generated random
-numbers, and are encrypted/decrypted using a specified 'master' key. The
-'master' key can either be a trusted-key or user-key type. The main
-disadvantage of encrypted keys is that if they are not rooted in a trusted key,
-they are only as secure as the user key encrypting them. The master user key
-should therefore be loaded in as secure a way as possible, preferably early in
-boot.
-
-The decrypted portion of encrypted keys can contain either a simple symmetric
-key or a more complex structure. The format of the more complex structure is
-application specific, which is identified by 'format'.
-
-Usage:
- keyctl add encrypted name "new [format] key-type:master-key-name keylen"
- ring
- keyctl add encrypted name "load hex_blob" ring
- keyctl update keyid "update key-type:master-key-name"
-
-format:= 'default | ecryptfs'
-key-type:= 'trusted' | 'user'
-
-
-Examples of trusted and encrypted key usage:
-
-Create and save a trusted key named "kmk" of length 32 bytes:
-
- $ keyctl add trusted kmk "new 32" @u
- 440502848
-
- $ keyctl show
- Session Keyring
- -3 --alswrv 500 500 keyring: _ses
- 97833714 --alswrv 500 -1 \_ keyring: _uid.500
- 440502848 --alswrv 500 500 \_ trusted: kmk
-
- $ keyctl print 440502848
- 0101000000000000000001005d01b7e3f4a6be5709930f3b70a743cbb42e0cc95e18e915
- 3f60da455bbf1144ad12e4f92b452f966929f6105fd29ca28e4d4d5a031d068478bacb0b
- 27351119f822911b0a11ba3d3498ba6a32e50dac7f32894dd890eb9ad578e4e292c83722
- a52e56a097e6a68b3f56f7a52ece0cdccba1eb62cad7d817f6dc58898b3ac15f36026fec
- d568bd4a706cb60bb37be6d8f1240661199d640b66fb0fe3b079f97f450b9ef9c22c6d5d
- dd379f0facd1cd020281dfa3c70ba21a3fa6fc2471dc6d13ecf8298b946f65345faa5ef0
- f1f8fff03ad0acb083725535636addb08d73dedb9832da198081e5deae84bfaf0409c22b
- e4a8aea2b607ec96931e6f4d4fe563ba
-
- $ keyctl pipe 440502848 > kmk.blob
-
-Load a trusted key from the saved blob:
-
- $ keyctl add trusted kmk "load `cat kmk.blob`" @u
- 268728824
-
- $ keyctl print 268728824
- 0101000000000000000001005d01b7e3f4a6be5709930f3b70a743cbb42e0cc95e18e915
- 3f60da455bbf1144ad12e4f92b452f966929f6105fd29ca28e4d4d5a031d068478bacb0b
- 27351119f822911b0a11ba3d3498ba6a32e50dac7f32894dd890eb9ad578e4e292c83722
- a52e56a097e6a68b3f56f7a52ece0cdccba1eb62cad7d817f6dc58898b3ac15f36026fec
- d568bd4a706cb60bb37be6d8f1240661199d640b66fb0fe3b079f97f450b9ef9c22c6d5d
- dd379f0facd1cd020281dfa3c70ba21a3fa6fc2471dc6d13ecf8298b946f65345faa5ef0
- f1f8fff03ad0acb083725535636addb08d73dedb9832da198081e5deae84bfaf0409c22b
- e4a8aea2b607ec96931e6f4d4fe563ba
-
-Reseal a trusted key under new pcr values:
-
- $ keyctl update 268728824 "update pcrinfo=`cat pcr.blob`"
- $ keyctl print 268728824
- 010100000000002c0002800093c35a09b70fff26e7a98ae786c641e678ec6ffb6b46d805
- 77c8a6377aed9d3219c6dfec4b23ffe3000001005d37d472ac8a44023fbb3d18583a4f73
- d3a076c0858f6f1dcaa39ea0f119911ff03f5406df4f7f27f41da8d7194f45c9f4e00f2e
- df449f266253aa3f52e55c53de147773e00f0f9aca86c64d94c95382265968c354c5eab4
- 9638c5ae99c89de1e0997242edfb0b501744e11ff9762dfd951cffd93227cc513384e7e6
- e782c29435c7ec2edafaa2f4c1fe6e7a781b59549ff5296371b42133777dcc5b8b971610
- 94bc67ede19e43ddb9dc2baacad374a36feaf0314d700af0a65c164b7082401740e489c9
- 7ef6a24defe4846104209bf0c3eced7fa1a672ed5b125fc9d8cd88b476a658a4434644ef
- df8ae9a178e9f83ba9f08d10fa47e4226b98b0702f06b3b8
-
-The initial consumer of trusted keys is EVM, which at boot time needs a high
-quality symmetric key for HMAC protection of file metadata. The use of a
-trusted key provides strong guarantees that the EVM key has not been
-compromised by a user level problem, and when sealed to specific boot PCR
-values, protects against boot and offline attacks. Create and save an
-encrypted key "evm" using the above trusted key "kmk":
-
-option 1: omitting 'format'
- $ keyctl add encrypted evm "new trusted:kmk 32" @u
- 159771175
-
-option 2: explicitly defining 'format' as 'default'
- $ keyctl add encrypted evm "new default trusted:kmk 32" @u
- 159771175
-
- $ keyctl print 159771175
- default trusted:kmk 32 2375725ad57798846a9bbd240de8906f006e66c03af53b1b3
- 82dbbc55be2a44616e4959430436dc4f2a7a9659aa60bb4652aeb2120f149ed197c564e0
- 24717c64 5972dcb82ab2dde83376d82b2e3c09ffc
-
- $ keyctl pipe 159771175 > evm.blob
-
-Load an encrypted key "evm" from saved blob:
-
- $ keyctl add encrypted evm "load `cat evm.blob`" @u
- 831684262
-
- $ keyctl print 831684262
- default trusted:kmk 32 2375725ad57798846a9bbd240de8906f006e66c03af53b1b3
- 82dbbc55be2a44616e4959430436dc4f2a7a9659aa60bb4652aeb2120f149ed197c564e0
- 24717c64 5972dcb82ab2dde83376d82b2e3c09ffc
-
-Other uses for trusted and encrypted keys, such as for disk and file encryption
-are anticipated. In particular the new format 'ecryptfs' has been defined in
-in order to use encrypted keys to mount an eCryptfs filesystem. More details
-about the usage can be found in the file
-'Documentation/security/keys-ecryptfs.txt'.
diff --git a/Documentation/security/keys.txt b/Documentation/security/keys.txt
deleted file mode 100644
index cd5019934d7f..000000000000
--- a/Documentation/security/keys.txt
+++ /dev/null
@@ -1,1562 +0,0 @@
- ============================
- KERNEL KEY RETENTION SERVICE
- ============================
-
-This service allows cryptographic keys, authentication tokens, cross-domain
-user mappings, and similar to be cached in the kernel for the use of
-filesystems and other kernel services.
-
-Keyrings are permitted; these are a special type of key that can hold links to
-other keys. Processes each have three standard keyring subscriptions that a
-kernel service can search for relevant keys.
-
-The key service can be configured on by enabling:
-
- "Security options"/"Enable access key retention support" (CONFIG_KEYS)
-
-This document has the following sections:
-
- - Key overview
- - Key service overview
- - Key access permissions
- - SELinux support
- - New procfs files
- - Userspace system call interface
- - Kernel services
- - Notes on accessing payload contents
- - Defining a key type
- - Request-key callback service
- - Garbage collection
-
-
-============
-KEY OVERVIEW
-============
-
-In this context, keys represent units of cryptographic data, authentication
-tokens, keyrings, etc.. These are represented in the kernel by struct key.
-
-Each key has a number of attributes:
-
- - A serial number.
- - A type.
- - A description (for matching a key in a search).
- - Access control information.
- - An expiry time.
- - A payload.
- - State.
-
-
- (*) Each key is issued a serial number of type key_serial_t that is unique for
- the lifetime of that key. All serial numbers are positive non-zero 32-bit
- integers.
-
- Userspace programs can use a key's serial numbers as a way to gain access
- to it, subject to permission checking.
-
- (*) Each key is of a defined "type". Types must be registered inside the
- kernel by a kernel service (such as a filesystem) before keys of that type
- can be added or used. Userspace programs cannot define new types directly.
-
- Key types are represented in the kernel by struct key_type. This defines a
- number of operations that can be performed on a key of that type.
-
- Should a type be removed from the system, all the keys of that type will
- be invalidated.
-
- (*) Each key has a description. This should be a printable string. The key
- type provides an operation to perform a match between the description on a
- key and a criterion string.
-
- (*) Each key has an owner user ID, a group ID and a permissions mask. These
- are used to control what a process may do to a key from userspace, and
- whether a kernel service will be able to find the key.
-
- (*) Each key can be set to expire at a specific time by the key type's
- instantiation function. Keys can also be immortal.
-
- (*) Each key can have a payload. This is a quantity of data that represent the
- actual "key". In the case of a keyring, this is a list of keys to which
- the keyring links; in the case of a user-defined key, it's an arbitrary
- blob of data.
-
- Having a payload is not required; and the payload can, in fact, just be a
- value stored in the struct key itself.
-
- When a key is instantiated, the key type's instantiation function is
- called with a blob of data, and that then creates the key's payload in
- some way.
-
- Similarly, when userspace wants to read back the contents of the key, if
- permitted, another key type operation will be called to convert the key's
- attached payload back into a blob of data.
-
- (*) Each key can be in one of a number of basic states:
-
- (*) Uninstantiated. The key exists, but does not have any data attached.
- Keys being requested from userspace will be in this state.
-
- (*) Instantiated. This is the normal state. The key is fully formed, and
- has data attached.
-
- (*) Negative. This is a relatively short-lived state. The key acts as a
- note saying that a previous call out to userspace failed, and acts as
- a throttle on key lookups. A negative key can be updated to a normal
- state.
-
- (*) Expired. Keys can have lifetimes set. If their lifetime is exceeded,
- they traverse to this state. An expired key can be updated back to a
- normal state.
-
- (*) Revoked. A key is put in this state by userspace action. It can't be
- found or operated upon (apart from by unlinking it).
-
- (*) Dead. The key's type was unregistered, and so the key is now useless.
-
-Keys in the last three states are subject to garbage collection. See the
-section on "Garbage collection".
-
-
-====================
-KEY SERVICE OVERVIEW
-====================
-
-The key service provides a number of features besides keys:
-
- (*) The key service defines three special key types:
-
- (+) "keyring"
-
- Keyrings are special keys that contain a list of other keys. Keyring
- lists can be modified using various system calls. Keyrings should not
- be given a payload when created.
-
- (+) "user"
-
- A key of this type has a description and a payload that are arbitrary
- blobs of data. These can be created, updated and read by userspace,
- and aren't intended for use by kernel services.
-
- (+) "logon"
-
- Like a "user" key, a "logon" key has a payload that is an arbitrary
- blob of data. It is intended as a place to store secrets which are
- accessible to the kernel but not to userspace programs.
-
- The description can be arbitrary, but must be prefixed with a non-zero
- length string that describes the key "subclass". The subclass is
- separated from the rest of the description by a ':'. "logon" keys can
- be created and updated from userspace, but the payload is only
- readable from kernel space.
-
- (*) Each process subscribes to three keyrings: a thread-specific keyring, a
- process-specific keyring, and a session-specific keyring.
-
- The thread-specific keyring is discarded from the child when any sort of
- clone, fork, vfork or execve occurs. A new keyring is created only when
- required.
-
- The process-specific keyring is replaced with an empty one in the child on
- clone, fork, vfork unless CLONE_THREAD is supplied, in which case it is
- shared. execve also discards the process's process keyring and creates a
- new one.
-
- The session-specific keyring is persistent across clone, fork, vfork and
- execve, even when the latter executes a set-UID or set-GID binary. A
- process can, however, replace its current session keyring with a new one
- by using PR_JOIN_SESSION_KEYRING. It is permitted to request an anonymous
- new one, or to attempt to create or join one of a specific name.
-
- The ownership of the thread keyring changes when the real UID and GID of
- the thread changes.
-
- (*) Each user ID resident in the system holds two special keyrings: a user
- specific keyring and a default user session keyring. The default session
- keyring is initialised with a link to the user-specific keyring.
-
- When a process changes its real UID, if it used to have no session key, it
- will be subscribed to the default session key for the new UID.
-
- If a process attempts to access its session key when it doesn't have one,
- it will be subscribed to the default for its current UID.
-
- (*) Each user has two quotas against which the keys they own are tracked. One
- limits the total number of keys and keyrings, the other limits the total
- amount of description and payload space that can be consumed.
-
- The user can view information on this and other statistics through procfs
- files. The root user may also alter the quota limits through sysctl files
- (see the section "New procfs files").
-
- Process-specific and thread-specific keyrings are not counted towards a
- user's quota.
-
- If a system call that modifies a key or keyring in some way would put the
- user over quota, the operation is refused and error EDQUOT is returned.
-
- (*) There's a system call interface by which userspace programs can create and
- manipulate keys and keyrings.
-
- (*) There's a kernel interface by which services can register types and search
- for keys.
-
- (*) There's a way for the a search done from the kernel to call back to
- userspace to request a key that can't be found in a process's keyrings.
-
- (*) An optional filesystem is available through which the key database can be
- viewed and manipulated.
-
-
-======================
-KEY ACCESS PERMISSIONS
-======================
-
-Keys have an owner user ID, a group access ID, and a permissions mask. The mask
-has up to eight bits each for possessor, user, group and other access. Only
-six of each set of eight bits are defined. These permissions granted are:
-
- (*) View
-
- This permits a key or keyring's attributes to be viewed - including key
- type and description.
-
- (*) Read
-
- This permits a key's payload to be viewed or a keyring's list of linked
- keys.
-
- (*) Write
-
- This permits a key's payload to be instantiated or updated, or it allows a
- link to be added to or removed from a keyring.
-
- (*) Search
-
- This permits keyrings to be searched and keys to be found. Searches can
- only recurse into nested keyrings that have search permission set.
-
- (*) Link
-
- This permits a key or keyring to be linked to. To create a link from a
- keyring to a key, a process must have Write permission on the keyring and
- Link permission on the key.
-
- (*) Set Attribute
-
- This permits a key's UID, GID and permissions mask to be changed.
-
-For changing the ownership, group ID or permissions mask, being the owner of
-the key or having the sysadmin capability is sufficient.
-
-
-===============
-SELINUX SUPPORT
-===============
-
-The security class "key" has been added to SELinux so that mandatory access
-controls can be applied to keys created within various contexts. This support
-is preliminary, and is likely to change quite significantly in the near future.
-Currently, all of the basic permissions explained above are provided in SELinux
-as well; SELinux is simply invoked after all basic permission checks have been
-performed.
-
-The value of the file /proc/self/attr/keycreate influences the labeling of
-newly-created keys. If the contents of that file correspond to an SELinux
-security context, then the key will be assigned that context. Otherwise, the
-key will be assigned the current context of the task that invoked the key
-creation request. Tasks must be granted explicit permission to assign a
-particular context to newly-created keys, using the "create" permission in the
-key security class.
-
-The default keyrings associated with users will be labeled with the default
-context of the user if and only if the login programs have been instrumented to
-properly initialize keycreate during the login process. Otherwise, they will
-be labeled with the context of the login program itself.
-
-Note, however, that the default keyrings associated with the root user are
-labeled with the default kernel context, since they are created early in the
-boot process, before root has a chance to log in.
-
-The keyrings associated with new threads are each labeled with the context of
-their associated thread, and both session and process keyrings are handled
-similarly.
-
-
-================
-NEW PROCFS FILES
-================
-
-Two files have been added to procfs by which an administrator can find out
-about the status of the key service:
-
- (*) /proc/keys
-
- This lists the keys that are currently viewable by the task reading the
- file, giving information about their type, description and permissions.
- It is not possible to view the payload of the key this way, though some
- information about it may be given.
-
- The only keys included in the list are those that grant View permission to
- the reading process whether or not it possesses them. Note that LSM
- security checks are still performed, and may further filter out keys that
- the current process is not authorised to view.
-
- The contents of the file look like this:
-
- SERIAL FLAGS USAGE EXPY PERM UID GID TYPE DESCRIPTION: SUMMARY
- 00000001 I----- 39 perm 1f3f0000 0 0 keyring _uid_ses.0: 1/4
- 00000002 I----- 2 perm 1f3f0000 0 0 keyring _uid.0: empty
- 00000007 I----- 1 perm 1f3f0000 0 0 keyring _pid.1: empty
- 0000018d I----- 1 perm 1f3f0000 0 0 keyring _pid.412: empty
- 000004d2 I--Q-- 1 perm 1f3f0000 32 -1 keyring _uid.32: 1/4
- 000004d3 I--Q-- 3 perm 1f3f0000 32 -1 keyring _uid_ses.32: empty
- 00000892 I--QU- 1 perm 1f000000 0 0 user metal:copper: 0
- 00000893 I--Q-N 1 35s 1f3f0000 0 0 user metal:silver: 0
- 00000894 I--Q-- 1 10h 003f0000 0 0 user metal:gold: 0
-
- The flags are:
-
- I Instantiated
- R Revoked
- D Dead
- Q Contributes to user's quota
- U Under construction by callback to userspace
- N Negative key
-
-
- (*) /proc/key-users
-
- This file lists the tracking data for each user that has at least one key
- on the system. Such data includes quota information and statistics:
-
- [root@andromeda root]# cat /proc/key-users
- 0: 46 45/45 1/100 13/10000
- 29: 2 2/2 2/100 40/10000
- 32: 2 2/2 2/100 40/10000
- 38: 2 2/2 2/100 40/10000
-
- The format of each line is
- <UID>: User ID to which this applies
- <usage> Structure refcount
- <inst>/<keys> Total number of keys and number instantiated
- <keys>/<max> Key count quota
- <bytes>/<max> Key size quota
-
-
-Four new sysctl files have been added also for the purpose of controlling the
-quota limits on keys:
-
- (*) /proc/sys/kernel/keys/root_maxkeys
- /proc/sys/kernel/keys/root_maxbytes
-
- These files hold the maximum number of keys that root may have and the
- maximum total number of bytes of data that root may have stored in those
- keys.
-
- (*) /proc/sys/kernel/keys/maxkeys
- /proc/sys/kernel/keys/maxbytes
-
- These files hold the maximum number of keys that each non-root user may
- have and the maximum total number of bytes of data that each of those
- users may have stored in their keys.
-
-Root may alter these by writing each new limit as a decimal number string to
-the appropriate file.
-
-
-===============================
-USERSPACE SYSTEM CALL INTERFACE
-===============================
-
-Userspace can manipulate keys directly through three new syscalls: add_key,
-request_key and keyctl. The latter provides a number of functions for
-manipulating keys.
-
-When referring to a key directly, userspace programs should use the key's
-serial number (a positive 32-bit integer). However, there are some special
-values available for referring to special keys and keyrings that relate to the
-process making the call:
-
- CONSTANT VALUE KEY REFERENCED
- ============================== ====== ===========================
- KEY_SPEC_THREAD_KEYRING -1 thread-specific keyring
- KEY_SPEC_PROCESS_KEYRING -2 process-specific keyring
- KEY_SPEC_SESSION_KEYRING -3 session-specific keyring
- KEY_SPEC_USER_KEYRING -4 UID-specific keyring
- KEY_SPEC_USER_SESSION_KEYRING -5 UID-session keyring
- KEY_SPEC_GROUP_KEYRING -6 GID-specific keyring
- KEY_SPEC_REQKEY_AUTH_KEY -7 assumed request_key()
- authorisation key
-
-
-The main syscalls are:
-
- (*) Create a new key of given type, description and payload and add it to the
- nominated keyring:
-
- key_serial_t add_key(const char *type, const char *desc,
- const void *payload, size_t plen,
- key_serial_t keyring);
-
- If a key of the same type and description as that proposed already exists
- in the keyring, this will try to update it with the given payload, or it
- will return error EEXIST if that function is not supported by the key
- type. The process must also have permission to write to the key to be able
- to update it. The new key will have all user permissions granted and no
- group or third party permissions.
-
- Otherwise, this will attempt to create a new key of the specified type and
- description, and to instantiate it with the supplied payload and attach it
- to the keyring. In this case, an error will be generated if the process
- does not have permission to write to the keyring.
-
- If the key type supports it, if the description is NULL or an empty
- string, the key type will try and generate a description from the content
- of the payload.
-
- The payload is optional, and the pointer can be NULL if not required by
- the type. The payload is plen in size, and plen can be zero for an empty
- payload.
-
- A new keyring can be generated by setting type "keyring", the keyring name
- as the description (or NULL) and setting the payload to NULL.
-
- User defined keys can be created by specifying type "user". It is
- recommended that a user defined key's description by prefixed with a type
- ID and a colon, such as "krb5tgt:" for a Kerberos 5 ticket granting
- ticket.
-
- Any other type must have been registered with the kernel in advance by a
- kernel service such as a filesystem.
-
- The ID of the new or updated key is returned if successful.
-
-
- (*) Search the process's keyrings for a key, potentially calling out to
- userspace to create it.
-
- key_serial_t request_key(const char *type, const char *description,
- const char *callout_info,
- key_serial_t dest_keyring);
-
- This function searches all the process's keyrings in the order thread,
- process, session for a matching key. This works very much like
- KEYCTL_SEARCH, including the optional attachment of the discovered key to
- a keyring.
-
- If a key cannot be found, and if callout_info is not NULL, then
- /sbin/request-key will be invoked in an attempt to obtain a key. The
- callout_info string will be passed as an argument to the program.
-
- See also Documentation/security/keys-request-key.txt.
-
-
-The keyctl syscall functions are:
-
- (*) Map a special key ID to a real key ID for this process:
-
- key_serial_t keyctl(KEYCTL_GET_KEYRING_ID, key_serial_t id,
- int create);
-
- The special key specified by "id" is looked up (with the key being created
- if necessary) and the ID of the key or keyring thus found is returned if
- it exists.
-
- If the key does not yet exist, the key will be created if "create" is
- non-zero; and the error ENOKEY will be returned if "create" is zero.
-
-
- (*) Replace the session keyring this process subscribes to with a new one:
-
- key_serial_t keyctl(KEYCTL_JOIN_SESSION_KEYRING, const char *name);
-
- If name is NULL, an anonymous keyring is created attached to the process
- as its session keyring, displacing the old session keyring.
-
- If name is not NULL, if a keyring of that name exists, the process
- attempts to attach it as the session keyring, returning an error if that
- is not permitted; otherwise a new keyring of that name is created and
- attached as the session keyring.
-
- To attach to a named keyring, the keyring must have search permission for
- the process's ownership.
-
- The ID of the new session keyring is returned if successful.
-
-
- (*) Update the specified key:
-
- long keyctl(KEYCTL_UPDATE, key_serial_t key, const void *payload,
- size_t plen);
-
- This will try to update the specified key with the given payload, or it
- will return error EOPNOTSUPP if that function is not supported by the key
- type. The process must also have permission to write to the key to be able
- to update it.
-
- The payload is of length plen, and may be absent or empty as for
- add_key().
-
-
- (*) Revoke a key:
-
- long keyctl(KEYCTL_REVOKE, key_serial_t key);
-
- This makes a key unavailable for further operations. Further attempts to
- use the key will be met with error EKEYREVOKED, and the key will no longer
- be findable.
-
-
- (*) Change the ownership of a key:
-
- long keyctl(KEYCTL_CHOWN, key_serial_t key, uid_t uid, gid_t gid);
-
- This function permits a key's owner and group ID to be changed. Either one
- of uid or gid can be set to -1 to suppress that change.
-
- Only the superuser can change a key's owner to something other than the
- key's current owner. Similarly, only the superuser can change a key's
- group ID to something other than the calling process's group ID or one of
- its group list members.
-
-
- (*) Change the permissions mask on a key:
-
- long keyctl(KEYCTL_SETPERM, key_serial_t key, key_perm_t perm);
-
- This function permits the owner of a key or the superuser to change the
- permissions mask on a key.
-
- Only bits the available bits are permitted; if any other bits are set,
- error EINVAL will be returned.
-
-
- (*) Describe a key:
-
- long keyctl(KEYCTL_DESCRIBE, key_serial_t key, char *buffer,
- size_t buflen);
-
- This function returns a summary of the key's attributes (but not its
- payload data) as a string in the buffer provided.
-
- Unless there's an error, it always returns the amount of data it could
- produce, even if that's too big for the buffer, but it won't copy more
- than requested to userspace. If the buffer pointer is NULL then no copy
- will take place.
-
- A process must have view permission on the key for this function to be
- successful.
-
- If successful, a string is placed in the buffer in the following format:
-
- <type>;<uid>;<gid>;<perm>;<description>
-
- Where type and description are strings, uid and gid are decimal, and perm
- is hexadecimal. A NUL character is included at the end of the string if
- the buffer is sufficiently big.
-
- This can be parsed with
-
- sscanf(buffer, "%[^;];%d;%d;%o;%s", type, &uid, &gid, &mode, desc);
-
-
- (*) Clear out a keyring:
-
- long keyctl(KEYCTL_CLEAR, key_serial_t keyring);
-
- This function clears the list of keys attached to a keyring. The calling
- process must have write permission on the keyring, and it must be a
- keyring (or else error ENOTDIR will result).
-
- This function can also be used to clear special kernel keyrings if they
- are appropriately marked if the user has CAP_SYS_ADMIN capability. The
- DNS resolver cache keyring is an example of this.
-
-
- (*) Link a key into a keyring:
-
- long keyctl(KEYCTL_LINK, key_serial_t keyring, key_serial_t key);
-
- This function creates a link from the keyring to the key. The process must
- have write permission on the keyring and must have link permission on the
- key.
-
- Should the keyring not be a keyring, error ENOTDIR will result; and if the
- keyring is full, error ENFILE will result.
-
- The link procedure checks the nesting of the keyrings, returning ELOOP if
- it appears too deep or EDEADLK if the link would introduce a cycle.
-
- Any links within the keyring to keys that match the new key in terms of
- type and description will be discarded from the keyring as the new one is
- added.
-
-
- (*) Unlink a key or keyring from another keyring:
-
- long keyctl(KEYCTL_UNLINK, key_serial_t keyring, key_serial_t key);
-
- This function looks through the keyring for the first link to the
- specified key, and removes it if found. Subsequent links to that key are
- ignored. The process must have write permission on the keyring.
-
- If the keyring is not a keyring, error ENOTDIR will result; and if the key
- is not present, error ENOENT will be the result.
-
-
- (*) Search a keyring tree for a key:
-
- key_serial_t keyctl(KEYCTL_SEARCH, key_serial_t keyring,
- const char *type, const char *description,
- key_serial_t dest_keyring);
-
- This searches the keyring tree headed by the specified keyring until a key
- is found that matches the type and description criteria. Each keyring is
- checked for keys before recursion into its children occurs.
-
- The process must have search permission on the top level keyring, or else
- error EACCES will result. Only keyrings that the process has search
- permission on will be recursed into, and only keys and keyrings for which
- a process has search permission can be matched. If the specified keyring
- is not a keyring, ENOTDIR will result.
-
- If the search succeeds, the function will attempt to link the found key
- into the destination keyring if one is supplied (non-zero ID). All the
- constraints applicable to KEYCTL_LINK apply in this case too.
-
- Error ENOKEY, EKEYREVOKED or EKEYEXPIRED will be returned if the search
- fails. On success, the resulting key ID will be returned.
-
-
- (*) Read the payload data from a key:
-
- long keyctl(KEYCTL_READ, key_serial_t keyring, char *buffer,
- size_t buflen);
-
- This function attempts to read the payload data from the specified key
- into the buffer. The process must have read permission on the key to
- succeed.
-
- The returned data will be processed for presentation by the key type. For
- instance, a keyring will return an array of key_serial_t entries
- representing the IDs of all the keys to which it is subscribed. The user
- defined key type will return its data as is. If a key type does not
- implement this function, error EOPNOTSUPP will result.
-
- As much of the data as can be fitted into the buffer will be copied to
- userspace if the buffer pointer is not NULL.
-
- On a successful return, the function will always return the amount of data
- available rather than the amount copied.
-
-
- (*) Instantiate a partially constructed key.
-
- long keyctl(KEYCTL_INSTANTIATE, key_serial_t key,
- const void *payload, size_t plen,
- key_serial_t keyring);
- long keyctl(KEYCTL_INSTANTIATE_IOV, key_serial_t key,
- const struct iovec *payload_iov, unsigned ioc,
- key_serial_t keyring);
-
- If the kernel calls back to userspace to complete the instantiation of a
- key, userspace should use this call to supply data for the key before the
- invoked process returns, or else the key will be marked negative
- automatically.
-
- The process must have write access on the key to be able to instantiate
- it, and the key must be uninstantiated.
-
- If a keyring is specified (non-zero), the key will also be linked into
- that keyring, however all the constraints applying in KEYCTL_LINK apply in
- this case too.
-
- The payload and plen arguments describe the payload data as for add_key().
-
- The payload_iov and ioc arguments describe the payload data in an iovec
- array instead of a single buffer.
-
-
- (*) Negatively instantiate a partially constructed key.
-
- long keyctl(KEYCTL_NEGATE, key_serial_t key,
- unsigned timeout, key_serial_t keyring);
- long keyctl(KEYCTL_REJECT, key_serial_t key,
- unsigned timeout, unsigned error, key_serial_t keyring);
-
- If the kernel calls back to userspace to complete the instantiation of a
- key, userspace should use this call mark the key as negative before the
- invoked process returns if it is unable to fulfill the request.
-
- The process must have write access on the key to be able to instantiate
- it, and the key must be uninstantiated.
-
- If a keyring is specified (non-zero), the key will also be linked into
- that keyring, however all the constraints applying in KEYCTL_LINK apply in
- this case too.
-
- If the key is rejected, future searches for it will return the specified
- error code until the rejected key expires. Negating the key is the same
- as rejecting the key with ENOKEY as the error code.
-
-
- (*) Set the default request-key destination keyring.
-
- long keyctl(KEYCTL_SET_REQKEY_KEYRING, int reqkey_defl);
-
- This sets the default keyring to which implicitly requested keys will be
- attached for this thread. reqkey_defl should be one of these constants:
-
- CONSTANT VALUE NEW DEFAULT KEYRING
- ====================================== ====== =======================
- KEY_REQKEY_DEFL_NO_CHANGE -1 No change
- KEY_REQKEY_DEFL_DEFAULT 0 Default[1]
- KEY_REQKEY_DEFL_THREAD_KEYRING 1 Thread keyring
- KEY_REQKEY_DEFL_PROCESS_KEYRING 2 Process keyring
- KEY_REQKEY_DEFL_SESSION_KEYRING 3 Session keyring
- KEY_REQKEY_DEFL_USER_KEYRING 4 User keyring
- KEY_REQKEY_DEFL_USER_SESSION_KEYRING 5 User session keyring
- KEY_REQKEY_DEFL_GROUP_KEYRING 6 Group keyring
-
- The old default will be returned if successful and error EINVAL will be
- returned if reqkey_defl is not one of the above values.
-
- The default keyring can be overridden by the keyring indicated to the
- request_key() system call.
-
- Note that this setting is inherited across fork/exec.
-
- [1] The default is: the thread keyring if there is one, otherwise
- the process keyring if there is one, otherwise the session keyring if
- there is one, otherwise the user default session keyring.
-
-
- (*) Set the timeout on a key.
-
- long keyctl(KEYCTL_SET_TIMEOUT, key_serial_t key, unsigned timeout);
-
- This sets or clears the timeout on a key. The timeout can be 0 to clear
- the timeout or a number of seconds to set the expiry time that far into
- the future.
-
- The process must have attribute modification access on a key to set its
- timeout. Timeouts may not be set with this function on negative, revoked
- or expired keys.
-
-
- (*) Assume the authority granted to instantiate a key
-
- long keyctl(KEYCTL_ASSUME_AUTHORITY, key_serial_t key);
-
- This assumes or divests the authority required to instantiate the
- specified key. Authority can only be assumed if the thread has the
- authorisation key associated with the specified key in its keyrings
- somewhere.
-
- Once authority is assumed, searches for keys will also search the
- requester's keyrings using the requester's security label, UID, GID and
- groups.
-
- If the requested authority is unavailable, error EPERM will be returned,
- likewise if the authority has been revoked because the target key is
- already instantiated.
-
- If the specified key is 0, then any assumed authority will be divested.
-
- The assumed authoritative key is inherited across fork and exec.
-
-
- (*) Get the LSM security context attached to a key.
-
- long keyctl(KEYCTL_GET_SECURITY, key_serial_t key, char *buffer,
- size_t buflen)
-
- This function returns a string that represents the LSM security context
- attached to a key in the buffer provided.
-
- Unless there's an error, it always returns the amount of data it could
- produce, even if that's too big for the buffer, but it won't copy more
- than requested to userspace. If the buffer pointer is NULL then no copy
- will take place.
-
- A NUL character is included at the end of the string if the buffer is
- sufficiently big. This is included in the returned count. If no LSM is
- in force then an empty string will be returned.
-
- A process must have view permission on the key for this function to be
- successful.
-
-
- (*) Install the calling process's session keyring on its parent.
-
- long keyctl(KEYCTL_SESSION_TO_PARENT);
-
- This functions attempts to install the calling process's session keyring
- on to the calling process's parent, replacing the parent's current session
- keyring.
-
- The calling process must have the same ownership as its parent, the
- keyring must have the same ownership as the calling process, the calling
- process must have LINK permission on the keyring and the active LSM module
- mustn't deny permission, otherwise error EPERM will be returned.
-
- Error ENOMEM will be returned if there was insufficient memory to complete
- the operation, otherwise 0 will be returned to indicate success.
-
- The keyring will be replaced next time the parent process leaves the
- kernel and resumes executing userspace.
-
-
- (*) Invalidate a key.
-
- long keyctl(KEYCTL_INVALIDATE, key_serial_t key);
-
- This function marks a key as being invalidated and then wakes up the
- garbage collector. The garbage collector immediately removes invalidated
- keys from all keyrings and deletes the key when its reference count
- reaches zero.
-
- Keys that are marked invalidated become invisible to normal key operations
- immediately, though they are still visible in /proc/keys until deleted
- (they're marked with an 'i' flag).
-
- A process must have search permission on the key for this function to be
- successful.
-
- (*) Compute a Diffie-Hellman shared secret or public key
-
- long keyctl(KEYCTL_DH_COMPUTE, struct keyctl_dh_params *params,
- char *buffer, size_t buflen,
- struct keyctl_kdf_params *kdf);
-
- The params struct contains serial numbers for three keys:
-
- - The prime, p, known to both parties
- - The local private key
- - The base integer, which is either a shared generator or the
- remote public key
-
- The value computed is:
-
- result = base ^ private (mod prime)
-
- If the base is the shared generator, the result is the local
- public key. If the base is the remote public key, the result is
- the shared secret.
-
- If the parameter kdf is NULL, the following applies:
-
- - The buffer length must be at least the length of the prime, or zero.
-
- - If the buffer length is nonzero, the length of the result is
- returned when it is successfully calculated and copied in to the
- buffer. When the buffer length is zero, the minimum required
- buffer length is returned.
-
- The kdf parameter allows the caller to apply a key derivation function
- (KDF) on the Diffie-Hellman computation where only the result
- of the KDF is returned to the caller. The KDF is characterized with
- struct keyctl_kdf_params as follows:
-
- - char *hashname specifies the NUL terminated string identifying
- the hash used from the kernel crypto API and applied for the KDF
- operation. The KDF implemenation complies with SP800-56A as well
- as with SP800-108 (the counter KDF).
-
- - char *otherinfo specifies the OtherInfo data as documented in
- SP800-56A section 5.8.1.2. The length of the buffer is given with
- otherinfolen. The format of OtherInfo is defined by the caller.
- The otherinfo pointer may be NULL if no OtherInfo shall be used.
-
- This function will return error EOPNOTSUPP if the key type is not
- supported, error ENOKEY if the key could not be found, or error
- EACCES if the key is not readable by the caller. In addition, the
- function will return EMSGSIZE when the parameter kdf is non-NULL
- and either the buffer length or the OtherInfo length exceeds the
- allowed length.
-
- (*) Restrict keyring linkage
-
- long keyctl(KEYCTL_RESTRICT_KEYRING, key_serial_t keyring,
- const char *type, const char *restriction);
-
- An existing keyring can restrict linkage of additional keys by evaluating
- the contents of the key according to a restriction scheme.
-
- "keyring" is the key ID for an existing keyring to apply a restriction
- to. It may be empty or may already have keys linked. Existing linked keys
- will remain in the keyring even if the new restriction would reject them.
-
- "type" is a registered key type.
-
- "restriction" is a string describing how key linkage is to be restricted.
- The format varies depending on the key type, and the string is passed to
- the lookup_restriction() function for the requested type. It may specify
- a method and relevant data for the restriction such as signature
- verification or constraints on key payload. If the requested key type is
- later unregistered, no keys may be added to the keyring after the key type
- is removed.
-
- To apply a keyring restriction the process must have Set Attribute
- permission and the keyring must not be previously restricted.
-
-===============
-KERNEL SERVICES
-===============
-
-The kernel services for key management are fairly simple to deal with. They can
-be broken down into two areas: keys and key types.
-
-Dealing with keys is fairly straightforward. Firstly, the kernel service
-registers its type, then it searches for a key of that type. It should retain
-the key as long as it has need of it, and then it should release it. For a
-filesystem or device file, a search would probably be performed during the open
-call, and the key released upon close. How to deal with conflicting keys due to
-two different users opening the same file is left to the filesystem author to
-solve.
-
-To access the key manager, the following header must be #included:
-
- <linux/key.h>
-
-Specific key types should have a header file under include/keys/ that should be
-used to access that type. For keys of type "user", for example, that would be:
-
- <keys/user-type.h>
-
-Note that there are two different types of pointers to keys that may be
-encountered:
-
- (*) struct key *
-
- This simply points to the key structure itself. Key structures will be at
- least four-byte aligned.
-
- (*) key_ref_t
-
- This is equivalent to a struct key *, but the least significant bit is set
- if the caller "possesses" the key. By "possession" it is meant that the
- calling processes has a searchable link to the key from one of its
- keyrings. There are three functions for dealing with these:
-
- key_ref_t make_key_ref(const struct key *key, bool possession);
-
- struct key *key_ref_to_ptr(const key_ref_t key_ref);
-
- bool is_key_possessed(const key_ref_t key_ref);
-
- The first function constructs a key reference from a key pointer and
- possession information (which must be true or false).
-
- The second function retrieves the key pointer from a reference and the
- third retrieves the possession flag.
-
-When accessing a key's payload contents, certain precautions must be taken to
-prevent access vs modification races. See the section "Notes on accessing
-payload contents" for more information.
-
-(*) To search for a key, call:
-
- struct key *request_key(const struct key_type *type,
- const char *description,
- const char *callout_info);
-
- This is used to request a key or keyring with a description that matches
- the description specified according to the key type's match_preparse()
- method. This permits approximate matching to occur. If callout_string is
- not NULL, then /sbin/request-key will be invoked in an attempt to obtain
- the key from userspace. In that case, callout_string will be passed as an
- argument to the program.
-
- Should the function fail error ENOKEY, EKEYEXPIRED or EKEYREVOKED will be
- returned.
-
- If successful, the key will have been attached to the default keyring for
- implicitly obtained request-key keys, as set by KEYCTL_SET_REQKEY_KEYRING.
-
- See also Documentation/security/keys-request-key.txt.
-
-
-(*) To search for a key, passing auxiliary data to the upcaller, call:
-
- struct key *request_key_with_auxdata(const struct key_type *type,
- const char *description,
- const void *callout_info,
- size_t callout_len,
- void *aux);
-
- This is identical to request_key(), except that the auxiliary data is
- passed to the key_type->request_key() op if it exists, and the callout_info
- is a blob of length callout_len, if given (the length may be 0).
-
-
-(*) A key can be requested asynchronously by calling one of:
-
- struct key *request_key_async(const struct key_type *type,
- const char *description,
- const void *callout_info,
- size_t callout_len);
-
- or:
-
- struct key *request_key_async_with_auxdata(const struct key_type *type,
- const char *description,
- const char *callout_info,
- size_t callout_len,
- void *aux);
-
- which are asynchronous equivalents of request_key() and
- request_key_with_auxdata() respectively.
-
- These two functions return with the key potentially still under
- construction. To wait for construction completion, the following should be
- called:
-
- int wait_for_key_construction(struct key *key, bool intr);
-
- The function will wait for the key to finish being constructed and then
- invokes key_validate() to return an appropriate value to indicate the state
- of the key (0 indicates the key is usable).
-
- If intr is true, then the wait can be interrupted by a signal, in which
- case error ERESTARTSYS will be returned.
-
-
-(*) When it is no longer required, the key should be released using:
-
- void key_put(struct key *key);
-
- Or:
-
- void key_ref_put(key_ref_t key_ref);
-
- These can be called from interrupt context. If CONFIG_KEYS is not set then
- the argument will not be parsed.
-
-
-(*) Extra references can be made to a key by calling one of the following
- functions:
-
- struct key *__key_get(struct key *key);
- struct key *key_get(struct key *key);
-
- Keys so references will need to be disposed of by calling key_put() when
- they've been finished with. The key pointer passed in will be returned.
-
- In the case of key_get(), if the pointer is NULL or CONFIG_KEYS is not set
- then the key will not be dereferenced and no increment will take place.
-
-
-(*) A key's serial number can be obtained by calling:
-
- key_serial_t key_serial(struct key *key);
-
- If key is NULL or if CONFIG_KEYS is not set then 0 will be returned (in the
- latter case without parsing the argument).
-
-
-(*) If a keyring was found in the search, this can be further searched by:
-
- key_ref_t keyring_search(key_ref_t keyring_ref,
- const struct key_type *type,
- const char *description)
-
- This searches the keyring tree specified for a matching key. Error ENOKEY
- is returned upon failure (use IS_ERR/PTR_ERR to determine). If successful,
- the returned key will need to be released.
-
- The possession attribute from the keyring reference is used to control
- access through the permissions mask and is propagated to the returned key
- reference pointer if successful.
-
-
-(*) A keyring can be created by:
-
- struct key *keyring_alloc(const char *description, uid_t uid, gid_t gid,
- const struct cred *cred,
- key_perm_t perm,
- struct key_restriction *restrict_link,
- unsigned long flags,
- struct key *dest);
-
- This creates a keyring with the given attributes and returns it. If dest
- is not NULL, the new keyring will be linked into the keyring to which it
- points. No permission checks are made upon the destination keyring.
-
- Error EDQUOT can be returned if the keyring would overload the quota (pass
- KEY_ALLOC_NOT_IN_QUOTA in flags if the keyring shouldn't be accounted
- towards the user's quota). Error ENOMEM can also be returned.
-
- If restrict_link is not NULL, it should point to a structure that contains
- the function that will be called each time an attempt is made to link a
- key into the new keyring. The structure may also contain a key pointer
- and an associated key type. The function is called to check whether a key
- may be added into the keyring or not. The key type is used by the garbage
- collector to clean up function or data pointers in this structure if the
- given key type is unregistered. Callers of key_create_or_update() within
- the kernel can pass KEY_ALLOC_BYPASS_RESTRICTION to suppress the check.
- An example of using this is to manage rings of cryptographic keys that are
- set up when the kernel boots where userspace is also permitted to add keys
- - provided they can be verified by a key the kernel already has.
-
- When called, the restriction function will be passed the keyring being
- added to, the key type, the payload of the key being added, and data to be
- used in the restriction check. Note that when a new key is being created,
- this is called between payload preparsing and actual key creation. The
- function should return 0 to allow the link or an error to reject it.
-
- A convenience function, restrict_link_reject, exists to always return
- -EPERM to in this case.
-
-
-(*) To check the validity of a key, this function can be called:
-
- int validate_key(struct key *key);
-
- This checks that the key in question hasn't expired or and hasn't been
- revoked. Should the key be invalid, error EKEYEXPIRED or EKEYREVOKED will
- be returned. If the key is NULL or if CONFIG_KEYS is not set then 0 will be
- returned (in the latter case without parsing the argument).
-
-
-(*) To register a key type, the following function should be called:
-
- int register_key_type(struct key_type *type);
-
- This will return error EEXIST if a type of the same name is already
- present.
-
-
-(*) To unregister a key type, call:
-
- void unregister_key_type(struct key_type *type);
-
-
-Under some circumstances, it may be desirable to deal with a bundle of keys.
-The facility provides access to the keyring type for managing such a bundle:
-
- struct key_type key_type_keyring;
-
-This can be used with a function such as request_key() to find a specific
-keyring in a process's keyrings. A keyring thus found can then be searched
-with keyring_search(). Note that it is not possible to use request_key() to
-search a specific keyring, so using keyrings in this way is of limited utility.
-
-
-===================================
-NOTES ON ACCESSING PAYLOAD CONTENTS
-===================================
-
-The simplest payload is just data stored in key->payload directly. In this
-case, there's no need to indulge in RCU or locking when accessing the payload.
-
-More complex payload contents must be allocated and pointers to them set in the
-key->payload.data[] array. One of the following ways must be selected to
-access the data:
-
- (1) Unmodifiable key type.
-
- If the key type does not have a modify method, then the key's payload can
- be accessed without any form of locking, provided that it's known to be
- instantiated (uninstantiated keys cannot be "found").
-
- (2) The key's semaphore.
-
- The semaphore could be used to govern access to the payload and to control
- the payload pointer. It must be write-locked for modifications and would
- have to be read-locked for general access. The disadvantage of doing this
- is that the accessor may be required to sleep.
-
- (3) RCU.
-
- RCU must be used when the semaphore isn't already held; if the semaphore
- is held then the contents can't change under you unexpectedly as the
- semaphore must still be used to serialise modifications to the key. The
- key management code takes care of this for the key type.
-
- However, this means using:
-
- rcu_read_lock() ... rcu_dereference() ... rcu_read_unlock()
-
- to read the pointer, and:
-
- rcu_dereference() ... rcu_assign_pointer() ... call_rcu()
-
- to set the pointer and dispose of the old contents after a grace period.
- Note that only the key type should ever modify a key's payload.
-
- Furthermore, an RCU controlled payload must hold a struct rcu_head for the
- use of call_rcu() and, if the payload is of variable size, the length of
- the payload. key->datalen cannot be relied upon to be consistent with the
- payload just dereferenced if the key's semaphore is not held.
-
- Note that key->payload.data[0] has a shadow that is marked for __rcu
- usage. This is called key->payload.rcu_data0. The following accessors
- wrap the RCU calls to this element:
-
- (a) Set or change the first payload pointer:
-
- rcu_assign_keypointer(struct key *key, void *data);
-
- (b) Read the first payload pointer with the key semaphore held:
-
- [const] void *dereference_key_locked([const] struct key *key);
-
- Note that the return value will inherit its constness from the key
- parameter. Static analysis will give an error if it things the lock
- isn't held.
-
- (c) Read the first payload pointer with the RCU read lock held:
-
- const void *dereference_key_rcu(const struct key *key);
-
-
-===================
-DEFINING A KEY TYPE
-===================
-
-A kernel service may want to define its own key type. For instance, an AFS
-filesystem might want to define a Kerberos 5 ticket key type. To do this, it
-author fills in a key_type struct and registers it with the system.
-
-Source files that implement key types should include the following header file:
-
- <linux/key-type.h>
-
-The structure has a number of fields, some of which are mandatory:
-
- (*) const char *name
-
- The name of the key type. This is used to translate a key type name
- supplied by userspace into a pointer to the structure.
-
-
- (*) size_t def_datalen
-
- This is optional - it supplies the default payload data length as
- contributed to the quota. If the key type's payload is always or almost
- always the same size, then this is a more efficient way to do things.
-
- The data length (and quota) on a particular key can always be changed
- during instantiation or update by calling:
-
- int key_payload_reserve(struct key *key, size_t datalen);
-
- With the revised data length. Error EDQUOT will be returned if this is not
- viable.
-
-
- (*) int (*vet_description)(const char *description);
-
- This optional method is called to vet a key description. If the key type
- doesn't approve of the key description, it may return an error, otherwise
- it should return 0.
-
-
- (*) int (*preparse)(struct key_preparsed_payload *prep);
-
- This optional method permits the key type to attempt to parse payload
- before a key is created (add key) or the key semaphore is taken (update or
- instantiate key). The structure pointed to by prep looks like:
-
- struct key_preparsed_payload {
- char *description;
- union key_payload payload;
- const void *data;
- size_t datalen;
- size_t quotalen;
- time_t expiry;
- };
-
- Before calling the method, the caller will fill in data and datalen with
- the payload blob parameters; quotalen will be filled in with the default
- quota size from the key type; expiry will be set to TIME_T_MAX and the
- rest will be cleared.
-
- If a description can be proposed from the payload contents, that should be
- attached as a string to the description field. This will be used for the
- key description if the caller of add_key() passes NULL or "".
-
- The method can attach anything it likes to payload. This is merely passed
- along to the instantiate() or update() operations. If set, the expiry
- time will be applied to the key if it is instantiated from this data.
-
- The method should return 0 if successful or a negative error code
- otherwise.
-
-
- (*) void (*free_preparse)(struct key_preparsed_payload *prep);
-
- This method is only required if the preparse() method is provided,
- otherwise it is unused. It cleans up anything attached to the description
- and payload fields of the key_preparsed_payload struct as filled in by the
- preparse() method. It will always be called after preparse() returns
- successfully, even if instantiate() or update() succeed.
-
-
- (*) int (*instantiate)(struct key *key, struct key_preparsed_payload *prep);
-
- This method is called to attach a payload to a key during construction.
- The payload attached need not bear any relation to the data passed to this
- function.
-
- The prep->data and prep->datalen fields will define the original payload
- blob. If preparse() was supplied then other fields may be filled in also.
-
- If the amount of data attached to the key differs from the size in
- keytype->def_datalen, then key_payload_reserve() should be called.
-
- This method does not have to lock the key in order to attach a payload.
- The fact that KEY_FLAG_INSTANTIATED is not set in key->flags prevents
- anything else from gaining access to the key.
-
- It is safe to sleep in this method.
-
- generic_key_instantiate() is provided to simply copy the data from
- prep->payload.data[] to key->payload.data[], with RCU-safe assignment on
- the first element. It will then clear prep->payload.data[] so that the
- free_preparse method doesn't release the data.
-
-
- (*) int (*update)(struct key *key, const void *data, size_t datalen);
-
- If this type of key can be updated, then this method should be provided.
- It is called to update a key's payload from the blob of data provided.
-
- The prep->data and prep->datalen fields will define the original payload
- blob. If preparse() was supplied then other fields may be filled in also.
-
- key_payload_reserve() should be called if the data length might change
- before any changes are actually made. Note that if this succeeds, the type
- is committed to changing the key because it's already been altered, so all
- memory allocation must be done first.
-
- The key will have its semaphore write-locked before this method is called,
- but this only deters other writers; any changes to the key's payload must
- be made under RCU conditions, and call_rcu() must be used to dispose of
- the old payload.
-
- key_payload_reserve() should be called before the changes are made, but
- after all allocations and other potentially failing function calls are
- made.
-
- It is safe to sleep in this method.
-
-
- (*) int (*match_preparse)(struct key_match_data *match_data);
-
- This method is optional. It is called when a key search is about to be
- performed. It is given the following structure:
-
- struct key_match_data {
- bool (*cmp)(const struct key *key,
- const struct key_match_data *match_data);
- const void *raw_data;
- void *preparsed;
- unsigned lookup_type;
- };
-
- On entry, raw_data will be pointing to the criteria to be used in matching
- a key by the caller and should not be modified. (*cmp)() will be pointing
- to the default matcher function (which does an exact description match
- against raw_data) and lookup_type will be set to indicate a direct lookup.
-
- The following lookup_type values are available:
-
- [*] KEYRING_SEARCH_LOOKUP_DIRECT - A direct lookup hashes the type and
- description to narrow down the search to a small number of keys.
-
- [*] KEYRING_SEARCH_LOOKUP_ITERATE - An iterative lookup walks all the
- keys in the keyring until one is matched. This must be used for any
- search that's not doing a simple direct match on the key description.
-
- The method may set cmp to point to a function of its choice that does some
- other form of match, may set lookup_type to KEYRING_SEARCH_LOOKUP_ITERATE
- and may attach something to the preparsed pointer for use by (*cmp)().
- (*cmp)() should return true if a key matches and false otherwise.
-
- If preparsed is set, it may be necessary to use the match_free() method to
- clean it up.
-
- The method should return 0 if successful or a negative error code
- otherwise.
-
- It is permitted to sleep in this method, but (*cmp)() may not sleep as
- locks will be held over it.
-
- If match_preparse() is not provided, keys of this type will be matched
- exactly by their description.
-
-
- (*) void (*match_free)(struct key_match_data *match_data);
-
- This method is optional. If given, it called to clean up
- match_data->preparsed after a successful call to match_preparse().
-
-
- (*) void (*revoke)(struct key *key);
-
- This method is optional. It is called to discard part of the payload
- data upon a key being revoked. The caller will have the key semaphore
- write-locked.
-
- It is safe to sleep in this method, though care should be taken to avoid
- a deadlock against the key semaphore.
-
-
- (*) void (*destroy)(struct key *key);
-
- This method is optional. It is called to discard the payload data on a key
- when it is being destroyed.
-
- This method does not need to lock the key to access the payload; it can
- consider the key as being inaccessible at this time. Note that the key's
- type may have been changed before this function is called.
-
- It is not safe to sleep in this method; the caller may hold spinlocks.
-
-
- (*) void (*describe)(const struct key *key, struct seq_file *p);
-
- This method is optional. It is called during /proc/keys reading to
- summarise a key's description and payload in text form.
-
- This method will be called with the RCU read lock held. rcu_dereference()
- should be used to read the payload pointer if the payload is to be
- accessed. key->datalen cannot be trusted to stay consistent with the
- contents of the payload.
-
- The description will not change, though the key's state may.
-
- It is not safe to sleep in this method; the RCU read lock is held by the
- caller.
-
-
- (*) long (*read)(const struct key *key, char __user *buffer, size_t buflen);
-
- This method is optional. It is called by KEYCTL_READ to translate the
- key's payload into something a blob of data for userspace to deal with.
- Ideally, the blob should be in the same format as that passed in to the
- instantiate and update methods.
-
- If successful, the blob size that could be produced should be returned
- rather than the size copied.
-
- This method will be called with the key's semaphore read-locked. This will
- prevent the key's payload changing. It is not necessary to use RCU locking
- when accessing the key's payload. It is safe to sleep in this method, such
- as might happen when the userspace buffer is accessed.
-
-
- (*) int (*request_key)(struct key_construction *cons, const char *op,
- void *aux);
-
- This method is optional. If provided, request_key() and friends will
- invoke this function rather than upcalling to /sbin/request-key to operate
- upon a key of this type.
-
- The aux parameter is as passed to request_key_async_with_auxdata() and
- similar or is NULL otherwise. Also passed are the construction record for
- the key to be operated upon and the operation type (currently only
- "create").
-
- This method is permitted to return before the upcall is complete, but the
- following function must be called under all circumstances to complete the
- instantiation process, whether or not it succeeds, whether or not there's
- an error:
-
- void complete_request_key(struct key_construction *cons, int error);
-
- The error parameter should be 0 on success, -ve on error. The
- construction record is destroyed by this action and the authorisation key
- will be revoked. If an error is indicated, the key under construction
- will be negatively instantiated if it wasn't already instantiated.
-
- If this method returns an error, that error will be returned to the
- caller of request_key*(). complete_request_key() must be called prior to
- returning.
-
- The key under construction and the authorisation key can be found in the
- key_construction struct pointed to by cons:
-
- (*) struct key *key;
-
- The key under construction.
-
- (*) struct key *authkey;
-
- The authorisation key.
-
-
- (*) struct key_restriction *(*lookup_restriction)(const char *params);
-
- This optional method is used to enable userspace configuration of keyring
- restrictions. The restriction parameter string (not including the key type
- name) is passed in, and this method returns a pointer to a key_restriction
- structure containing the relevant functions and data to evaluate each
- attempted key link operation. If there is no match, -EINVAL is returned.
-
-
-============================
-REQUEST-KEY CALLBACK SERVICE
-============================
-
-To create a new key, the kernel will attempt to execute the following command
-line:
-
- /sbin/request-key create <key> <uid> <gid> \
- <threadring> <processring> <sessionring> <callout_info>
-
-<key> is the key being constructed, and the three keyrings are the process
-keyrings from the process that caused the search to be issued. These are
-included for two reasons:
-
- (1) There may be an authentication token in one of the keyrings that is
- required to obtain the key, eg: a Kerberos Ticket-Granting Ticket.
-
- (2) The new key should probably be cached in one of these rings.
-
-This program should set it UID and GID to those specified before attempting to
-access any more keys. It may then look around for a user specific process to
-hand the request off to (perhaps a path held in placed in another key by, for
-example, the KDE desktop manager).
-
-The program (or whatever it calls) should finish construction of the key by
-calling KEYCTL_INSTANTIATE or KEYCTL_INSTANTIATE_IOV, which also permits it to
-cache the key in one of the keyrings (probably the session ring) before
-returning. Alternatively, the key can be marked as negative with KEYCTL_NEGATE
-or KEYCTL_REJECT; this also permits the key to be cached in one of the
-keyrings.
-
-If it returns with the key remaining in the unconstructed state, the key will
-be marked as being negative, it will be added to the session keyring, and an
-error will be returned to the key requestor.
-
-Supplementary information may be provided from whoever or whatever invoked this
-service. This will be passed as the <callout_info> parameter. If no such
-information was made available, then "-" will be passed as this parameter
-instead.
-
-
-Similarly, the kernel may attempt to update an expired or a soon to expire key
-by executing:
-
- /sbin/request-key update <key> <uid> <gid> \
- <threadring> <processring> <sessionring>
-
-In this case, the program isn't required to actually attach the key to a ring;
-the rings are provided for reference.
-
-
-==================
-GARBAGE COLLECTION
-==================
-
-Dead keys (for which the type has been removed) will be automatically unlinked
-from those keyrings that point to them and deleted as soon as possible by a
-background garbage collector.
-
-Similarly, revoked and expired keys will be garbage collected, but only after a
-certain amount of time has passed. This time is set as a number of seconds in:
-
- /proc/sys/kernel/keys/gc_delay
diff --git a/Documentation/security/keys/core.rst b/Documentation/security/keys/core.rst
new file mode 100644
index 000000000000..1266eeae45f6
--- /dev/null
+++ b/Documentation/security/keys/core.rst
@@ -0,0 +1,1546 @@
+============================
+Kernel Key Retention Service
+============================
+
+This service allows cryptographic keys, authentication tokens, cross-domain
+user mappings, and similar to be cached in the kernel for the use of
+filesystems and other kernel services.
+
+Keyrings are permitted; these are a special type of key that can hold links to
+other keys. Processes each have three standard keyring subscriptions that a
+kernel service can search for relevant keys.
+
+The key service can be configured on by enabling:
+
+ "Security options"/"Enable access key retention support" (CONFIG_KEYS)
+
+This document has the following sections:
+
+.. contents:: :local:
+
+
+Key Overview
+============
+
+In this context, keys represent units of cryptographic data, authentication
+tokens, keyrings, etc.. These are represented in the kernel by struct key.
+
+Each key has a number of attributes:
+
+ - A serial number.
+ - A type.
+ - A description (for matching a key in a search).
+ - Access control information.
+ - An expiry time.
+ - A payload.
+ - State.
+
+
+ * Each key is issued a serial number of type key_serial_t that is unique for
+ the lifetime of that key. All serial numbers are positive non-zero 32-bit
+ integers.
+
+ Userspace programs can use a key's serial numbers as a way to gain access
+ to it, subject to permission checking.
+
+ * Each key is of a defined "type". Types must be registered inside the
+ kernel by a kernel service (such as a filesystem) before keys of that type
+ can be added or used. Userspace programs cannot define new types directly.
+
+ Key types are represented in the kernel by struct key_type. This defines a
+ number of operations that can be performed on a key of that type.
+
+ Should a type be removed from the system, all the keys of that type will
+ be invalidated.
+
+ * Each key has a description. This should be a printable string. The key
+ type provides an operation to perform a match between the description on a
+ key and a criterion string.
+
+ * Each key has an owner user ID, a group ID and a permissions mask. These
+ are used to control what a process may do to a key from userspace, and
+ whether a kernel service will be able to find the key.
+
+ * Each key can be set to expire at a specific time by the key type's
+ instantiation function. Keys can also be immortal.
+
+ * Each key can have a payload. This is a quantity of data that represent the
+ actual "key". In the case of a keyring, this is a list of keys to which
+ the keyring links; in the case of a user-defined key, it's an arbitrary
+ blob of data.
+
+ Having a payload is not required; and the payload can, in fact, just be a
+ value stored in the struct key itself.
+
+ When a key is instantiated, the key type's instantiation function is
+ called with a blob of data, and that then creates the key's payload in
+ some way.
+
+ Similarly, when userspace wants to read back the contents of the key, if
+ permitted, another key type operation will be called to convert the key's
+ attached payload back into a blob of data.
+
+ * Each key can be in one of a number of basic states:
+
+ * Uninstantiated. The key exists, but does not have any data attached.
+ Keys being requested from userspace will be in this state.
+
+ * Instantiated. This is the normal state. The key is fully formed, and
+ has data attached.
+
+ * Negative. This is a relatively short-lived state. The key acts as a
+ note saying that a previous call out to userspace failed, and acts as
+ a throttle on key lookups. A negative key can be updated to a normal
+ state.
+
+ * Expired. Keys can have lifetimes set. If their lifetime is exceeded,
+ they traverse to this state. An expired key can be updated back to a
+ normal state.
+
+ * Revoked. A key is put in this state by userspace action. It can't be
+ found or operated upon (apart from by unlinking it).
+
+ * Dead. The key's type was unregistered, and so the key is now useless.
+
+Keys in the last three states are subject to garbage collection. See the
+section on "Garbage collection".
+
+
+Key Service Overview
+====================
+
+The key service provides a number of features besides keys:
+
+ * The key service defines three special key types:
+
+ (+) "keyring"
+
+ Keyrings are special keys that contain a list of other keys. Keyring
+ lists can be modified using various system calls. Keyrings should not
+ be given a payload when created.
+
+ (+) "user"
+
+ A key of this type has a description and a payload that are arbitrary
+ blobs of data. These can be created, updated and read by userspace,
+ and aren't intended for use by kernel services.
+
+ (+) "logon"
+
+ Like a "user" key, a "logon" key has a payload that is an arbitrary
+ blob of data. It is intended as a place to store secrets which are
+ accessible to the kernel but not to userspace programs.
+
+ The description can be arbitrary, but must be prefixed with a non-zero
+ length string that describes the key "subclass". The subclass is
+ separated from the rest of the description by a ':'. "logon" keys can
+ be created and updated from userspace, but the payload is only
+ readable from kernel space.
+
+ * Each process subscribes to three keyrings: a thread-specific keyring, a
+ process-specific keyring, and a session-specific keyring.
+
+ The thread-specific keyring is discarded from the child when any sort of
+ clone, fork, vfork or execve occurs. A new keyring is created only when
+ required.
+
+ The process-specific keyring is replaced with an empty one in the child on
+ clone, fork, vfork unless CLONE_THREAD is supplied, in which case it is
+ shared. execve also discards the process's process keyring and creates a
+ new one.
+
+ The session-specific keyring is persistent across clone, fork, vfork and
+ execve, even when the latter executes a set-UID or set-GID binary. A
+ process can, however, replace its current session keyring with a new one
+ by using PR_JOIN_SESSION_KEYRING. It is permitted to request an anonymous
+ new one, or to attempt to create or join one of a specific name.
+
+ The ownership of the thread keyring changes when the real UID and GID of
+ the thread changes.
+
+ * Each user ID resident in the system holds two special keyrings: a user
+ specific keyring and a default user session keyring. The default session
+ keyring is initialised with a link to the user-specific keyring.
+
+ When a process changes its real UID, if it used to have no session key, it
+ will be subscribed to the default session key for the new UID.
+
+ If a process attempts to access its session key when it doesn't have one,
+ it will be subscribed to the default for its current UID.
+
+ * Each user has two quotas against which the keys they own are tracked. One
+ limits the total number of keys and keyrings, the other limits the total
+ amount of description and payload space that can be consumed.
+
+ The user can view information on this and other statistics through procfs
+ files. The root user may also alter the quota limits through sysctl files
+ (see the section "New procfs files").
+
+ Process-specific and thread-specific keyrings are not counted towards a
+ user's quota.
+
+ If a system call that modifies a key or keyring in some way would put the
+ user over quota, the operation is refused and error EDQUOT is returned.
+
+ * There's a system call interface by which userspace programs can create and
+ manipulate keys and keyrings.
+
+ * There's a kernel interface by which services can register types and search
+ for keys.
+
+ * There's a way for the a search done from the kernel to call back to
+ userspace to request a key that can't be found in a process's keyrings.
+
+ * An optional filesystem is available through which the key database can be
+ viewed and manipulated.
+
+
+Key Access Permissions
+======================
+
+Keys have an owner user ID, a group access ID, and a permissions mask. The mask
+has up to eight bits each for possessor, user, group and other access. Only
+six of each set of eight bits are defined. These permissions granted are:
+
+ * View
+
+ This permits a key or keyring's attributes to be viewed - including key
+ type and description.
+
+ * Read
+
+ This permits a key's payload to be viewed or a keyring's list of linked
+ keys.
+
+ * Write
+
+ This permits a key's payload to be instantiated or updated, or it allows a
+ link to be added to or removed from a keyring.
+
+ * Search
+
+ This permits keyrings to be searched and keys to be found. Searches can
+ only recurse into nested keyrings that have search permission set.
+
+ * Link
+
+ This permits a key or keyring to be linked to. To create a link from a
+ keyring to a key, a process must have Write permission on the keyring and
+ Link permission on the key.
+
+ * Set Attribute
+
+ This permits a key's UID, GID and permissions mask to be changed.
+
+For changing the ownership, group ID or permissions mask, being the owner of
+the key or having the sysadmin capability is sufficient.
+
+
+SELinux Support
+===============
+
+The security class "key" has been added to SELinux so that mandatory access
+controls can be applied to keys created within various contexts. This support
+is preliminary, and is likely to change quite significantly in the near future.
+Currently, all of the basic permissions explained above are provided in SELinux
+as well; SELinux is simply invoked after all basic permission checks have been
+performed.
+
+The value of the file /proc/self/attr/keycreate influences the labeling of
+newly-created keys. If the contents of that file correspond to an SELinux
+security context, then the key will be assigned that context. Otherwise, the
+key will be assigned the current context of the task that invoked the key
+creation request. Tasks must be granted explicit permission to assign a
+particular context to newly-created keys, using the "create" permission in the
+key security class.
+
+The default keyrings associated with users will be labeled with the default
+context of the user if and only if the login programs have been instrumented to
+properly initialize keycreate during the login process. Otherwise, they will
+be labeled with the context of the login program itself.
+
+Note, however, that the default keyrings associated with the root user are
+labeled with the default kernel context, since they are created early in the
+boot process, before root has a chance to log in.
+
+The keyrings associated with new threads are each labeled with the context of
+their associated thread, and both session and process keyrings are handled
+similarly.
+
+
+New ProcFS Files
+================
+
+Two files have been added to procfs by which an administrator can find out
+about the status of the key service:
+
+ * /proc/keys
+
+ This lists the keys that are currently viewable by the task reading the
+ file, giving information about their type, description and permissions.
+ It is not possible to view the payload of the key this way, though some
+ information about it may be given.
+
+ The only keys included in the list are those that grant View permission to
+ the reading process whether or not it possesses them. Note that LSM
+ security checks are still performed, and may further filter out keys that
+ the current process is not authorised to view.
+
+ The contents of the file look like this::
+
+ SERIAL FLAGS USAGE EXPY PERM UID GID TYPE DESCRIPTION: SUMMARY
+ 00000001 I----- 39 perm 1f3f0000 0 0 keyring _uid_ses.0: 1/4
+ 00000002 I----- 2 perm 1f3f0000 0 0 keyring _uid.0: empty
+ 00000007 I----- 1 perm 1f3f0000 0 0 keyring _pid.1: empty
+ 0000018d I----- 1 perm 1f3f0000 0 0 keyring _pid.412: empty
+ 000004d2 I--Q-- 1 perm 1f3f0000 32 -1 keyring _uid.32: 1/4
+ 000004d3 I--Q-- 3 perm 1f3f0000 32 -1 keyring _uid_ses.32: empty
+ 00000892 I--QU- 1 perm 1f000000 0 0 user metal:copper: 0
+ 00000893 I--Q-N 1 35s 1f3f0000 0 0 user metal:silver: 0
+ 00000894 I--Q-- 1 10h 003f0000 0 0 user metal:gold: 0
+
+ The flags are::
+
+ I Instantiated
+ R Revoked
+ D Dead
+ Q Contributes to user's quota
+ U Under construction by callback to userspace
+ N Negative key
+
+
+ * /proc/key-users
+
+ This file lists the tracking data for each user that has at least one key
+ on the system. Such data includes quota information and statistics::
+
+ [root@andromeda root]# cat /proc/key-users
+ 0: 46 45/45 1/100 13/10000
+ 29: 2 2/2 2/100 40/10000
+ 32: 2 2/2 2/100 40/10000
+ 38: 2 2/2 2/100 40/10000
+
+ The format of each line is::
+
+ <UID>: User ID to which this applies
+ <usage> Structure refcount
+ <inst>/<keys> Total number of keys and number instantiated
+ <keys>/<max> Key count quota
+ <bytes>/<max> Key size quota
+
+
+Four new sysctl files have been added also for the purpose of controlling the
+quota limits on keys:
+
+ * /proc/sys/kernel/keys/root_maxkeys
+ /proc/sys/kernel/keys/root_maxbytes
+
+ These files hold the maximum number of keys that root may have and the
+ maximum total number of bytes of data that root may have stored in those
+ keys.
+
+ * /proc/sys/kernel/keys/maxkeys
+ /proc/sys/kernel/keys/maxbytes
+
+ These files hold the maximum number of keys that each non-root user may
+ have and the maximum total number of bytes of data that each of those
+ users may have stored in their keys.
+
+Root may alter these by writing each new limit as a decimal number string to
+the appropriate file.
+
+
+Userspace System Call Interface
+===============================
+
+Userspace can manipulate keys directly through three new syscalls: add_key,
+request_key and keyctl. The latter provides a number of functions for
+manipulating keys.
+
+When referring to a key directly, userspace programs should use the key's
+serial number (a positive 32-bit integer). However, there are some special
+values available for referring to special keys and keyrings that relate to the
+process making the call::
+
+ CONSTANT VALUE KEY REFERENCED
+ ============================== ====== ===========================
+ KEY_SPEC_THREAD_KEYRING -1 thread-specific keyring
+ KEY_SPEC_PROCESS_KEYRING -2 process-specific keyring
+ KEY_SPEC_SESSION_KEYRING -3 session-specific keyring
+ KEY_SPEC_USER_KEYRING -4 UID-specific keyring
+ KEY_SPEC_USER_SESSION_KEYRING -5 UID-session keyring
+ KEY_SPEC_GROUP_KEYRING -6 GID-specific keyring
+ KEY_SPEC_REQKEY_AUTH_KEY -7 assumed request_key()
+ authorisation key
+
+
+The main syscalls are:
+
+ * Create a new key of given type, description and payload and add it to the
+ nominated keyring::
+
+ key_serial_t add_key(const char *type, const char *desc,
+ const void *payload, size_t plen,
+ key_serial_t keyring);
+
+ If a key of the same type and description as that proposed already exists
+ in the keyring, this will try to update it with the given payload, or it
+ will return error EEXIST if that function is not supported by the key
+ type. The process must also have permission to write to the key to be able
+ to update it. The new key will have all user permissions granted and no
+ group or third party permissions.
+
+ Otherwise, this will attempt to create a new key of the specified type and
+ description, and to instantiate it with the supplied payload and attach it
+ to the keyring. In this case, an error will be generated if the process
+ does not have permission to write to the keyring.
+
+ If the key type supports it, if the description is NULL or an empty
+ string, the key type will try and generate a description from the content
+ of the payload.
+
+ The payload is optional, and the pointer can be NULL if not required by
+ the type. The payload is plen in size, and plen can be zero for an empty
+ payload.
+
+ A new keyring can be generated by setting type "keyring", the keyring name
+ as the description (or NULL) and setting the payload to NULL.
+
+ User defined keys can be created by specifying type "user". It is
+ recommended that a user defined key's description by prefixed with a type
+ ID and a colon, such as "krb5tgt:" for a Kerberos 5 ticket granting
+ ticket.
+
+ Any other type must have been registered with the kernel in advance by a
+ kernel service such as a filesystem.
+
+ The ID of the new or updated key is returned if successful.
+
+
+ * Search the process's keyrings for a key, potentially calling out to
+ userspace to create it::
+
+ key_serial_t request_key(const char *type, const char *description,
+ const char *callout_info,
+ key_serial_t dest_keyring);
+
+ This function searches all the process's keyrings in the order thread,
+ process, session for a matching key. This works very much like
+ KEYCTL_SEARCH, including the optional attachment of the discovered key to
+ a keyring.
+
+ If a key cannot be found, and if callout_info is not NULL, then
+ /sbin/request-key will be invoked in an attempt to obtain a key. The
+ callout_info string will be passed as an argument to the program.
+
+ See also Documentation/security/keys/request-key.rst.
+
+
+The keyctl syscall functions are:
+
+ * Map a special key ID to a real key ID for this process::
+
+ key_serial_t keyctl(KEYCTL_GET_KEYRING_ID, key_serial_t id,
+ int create);
+
+ The special key specified by "id" is looked up (with the key being created
+ if necessary) and the ID of the key or keyring thus found is returned if
+ it exists.
+
+ If the key does not yet exist, the key will be created if "create" is
+ non-zero; and the error ENOKEY will be returned if "create" is zero.
+
+
+ * Replace the session keyring this process subscribes to with a new one::
+
+ key_serial_t keyctl(KEYCTL_JOIN_SESSION_KEYRING, const char *name);
+
+ If name is NULL, an anonymous keyring is created attached to the process
+ as its session keyring, displacing the old session keyring.
+
+ If name is not NULL, if a keyring of that name exists, the process
+ attempts to attach it as the session keyring, returning an error if that
+ is not permitted; otherwise a new keyring of that name is created and
+ attached as the session keyring.
+
+ To attach to a named keyring, the keyring must have search permission for
+ the process's ownership.
+
+ The ID of the new session keyring is returned if successful.
+
+
+ * Update the specified key::
+
+ long keyctl(KEYCTL_UPDATE, key_serial_t key, const void *payload,
+ size_t plen);
+
+ This will try to update the specified key with the given payload, or it
+ will return error EOPNOTSUPP if that function is not supported by the key
+ type. The process must also have permission to write to the key to be able
+ to update it.
+
+ The payload is of length plen, and may be absent or empty as for
+ add_key().
+
+
+ * Revoke a key::
+
+ long keyctl(KEYCTL_REVOKE, key_serial_t key);
+
+ This makes a key unavailable for further operations. Further attempts to
+ use the key will be met with error EKEYREVOKED, and the key will no longer
+ be findable.
+
+
+ * Change the ownership of a key::
+
+ long keyctl(KEYCTL_CHOWN, key_serial_t key, uid_t uid, gid_t gid);
+
+ This function permits a key's owner and group ID to be changed. Either one
+ of uid or gid can be set to -1 to suppress that change.
+
+ Only the superuser can change a key's owner to something other than the
+ key's current owner. Similarly, only the superuser can change a key's
+ group ID to something other than the calling process's group ID or one of
+ its group list members.
+
+
+ * Change the permissions mask on a key::
+
+ long keyctl(KEYCTL_SETPERM, key_serial_t key, key_perm_t perm);
+
+ This function permits the owner of a key or the superuser to change the
+ permissions mask on a key.
+
+ Only bits the available bits are permitted; if any other bits are set,
+ error EINVAL will be returned.
+
+
+ * Describe a key::
+
+ long keyctl(KEYCTL_DESCRIBE, key_serial_t key, char *buffer,
+ size_t buflen);
+
+ This function returns a summary of the key's attributes (but not its
+ payload data) as a string in the buffer provided.
+
+ Unless there's an error, it always returns the amount of data it could
+ produce, even if that's too big for the buffer, but it won't copy more
+ than requested to userspace. If the buffer pointer is NULL then no copy
+ will take place.
+
+ A process must have view permission on the key for this function to be
+ successful.
+
+ If successful, a string is placed in the buffer in the following format::
+
+ <type>;<uid>;<gid>;<perm>;<description>
+
+ Where type and description are strings, uid and gid are decimal, and perm
+ is hexadecimal. A NUL character is included at the end of the string if
+ the buffer is sufficiently big.
+
+ This can be parsed with::
+
+ sscanf(buffer, "%[^;];%d;%d;%o;%s", type, &uid, &gid, &mode, desc);
+
+
+ * Clear out a keyring::
+
+ long keyctl(KEYCTL_CLEAR, key_serial_t keyring);
+
+ This function clears the list of keys attached to a keyring. The calling
+ process must have write permission on the keyring, and it must be a
+ keyring (or else error ENOTDIR will result).
+
+ This function can also be used to clear special kernel keyrings if they
+ are appropriately marked if the user has CAP_SYS_ADMIN capability. The
+ DNS resolver cache keyring is an example of this.
+
+
+ * Link a key into a keyring::
+
+ long keyctl(KEYCTL_LINK, key_serial_t keyring, key_serial_t key);
+
+ This function creates a link from the keyring to the key. The process must
+ have write permission on the keyring and must have link permission on the
+ key.
+
+ Should the keyring not be a keyring, error ENOTDIR will result; and if the
+ keyring is full, error ENFILE will result.
+
+ The link procedure checks the nesting of the keyrings, returning ELOOP if
+ it appears too deep or EDEADLK if the link would introduce a cycle.
+
+ Any links within the keyring to keys that match the new key in terms of
+ type and description will be discarded from the keyring as the new one is
+ added.
+
+
+ * Unlink a key or keyring from another keyring::
+
+ long keyctl(KEYCTL_UNLINK, key_serial_t keyring, key_serial_t key);
+
+ This function looks through the keyring for the first link to the
+ specified key, and removes it if found. Subsequent links to that key are
+ ignored. The process must have write permission on the keyring.
+
+ If the keyring is not a keyring, error ENOTDIR will result; and if the key
+ is not present, error ENOENT will be the result.
+
+
+ * Search a keyring tree for a key::
+
+ key_serial_t keyctl(KEYCTL_SEARCH, key_serial_t keyring,
+ const char *type, const char *description,
+ key_serial_t dest_keyring);
+
+ This searches the keyring tree headed by the specified keyring until a key
+ is found that matches the type and description criteria. Each keyring is
+ checked for keys before recursion into its children occurs.
+
+ The process must have search permission on the top level keyring, or else
+ error EACCES will result. Only keyrings that the process has search
+ permission on will be recursed into, and only keys and keyrings for which
+ a process has search permission can be matched. If the specified keyring
+ is not a keyring, ENOTDIR will result.
+
+ If the search succeeds, the function will attempt to link the found key
+ into the destination keyring if one is supplied (non-zero ID). All the
+ constraints applicable to KEYCTL_LINK apply in this case too.
+
+ Error ENOKEY, EKEYREVOKED or EKEYEXPIRED will be returned if the search
+ fails. On success, the resulting key ID will be returned.
+
+
+ * Read the payload data from a key::
+
+ long keyctl(KEYCTL_READ, key_serial_t keyring, char *buffer,
+ size_t buflen);
+
+ This function attempts to read the payload data from the specified key
+ into the buffer. The process must have read permission on the key to
+ succeed.
+
+ The returned data will be processed for presentation by the key type. For
+ instance, a keyring will return an array of key_serial_t entries
+ representing the IDs of all the keys to which it is subscribed. The user
+ defined key type will return its data as is. If a key type does not
+ implement this function, error EOPNOTSUPP will result.
+
+ As much of the data as can be fitted into the buffer will be copied to
+ userspace if the buffer pointer is not NULL.
+
+ On a successful return, the function will always return the amount of data
+ available rather than the amount copied.
+
+
+ * Instantiate a partially constructed key::
+
+ long keyctl(KEYCTL_INSTANTIATE, key_serial_t key,
+ const void *payload, size_t plen,
+ key_serial_t keyring);
+ long keyctl(KEYCTL_INSTANTIATE_IOV, key_serial_t key,
+ const struct iovec *payload_iov, unsigned ioc,
+ key_serial_t keyring);
+
+ If the kernel calls back to userspace to complete the instantiation of a
+ key, userspace should use this call to supply data for the key before the
+ invoked process returns, or else the key will be marked negative
+ automatically.
+
+ The process must have write access on the key to be able to instantiate
+ it, and the key must be uninstantiated.
+
+ If a keyring is specified (non-zero), the key will also be linked into
+ that keyring, however all the constraints applying in KEYCTL_LINK apply in
+ this case too.
+
+ The payload and plen arguments describe the payload data as for add_key().
+
+ The payload_iov and ioc arguments describe the payload data in an iovec
+ array instead of a single buffer.
+
+
+ * Negatively instantiate a partially constructed key::
+
+ long keyctl(KEYCTL_NEGATE, key_serial_t key,
+ unsigned timeout, key_serial_t keyring);
+ long keyctl(KEYCTL_REJECT, key_serial_t key,
+ unsigned timeout, unsigned error, key_serial_t keyring);
+
+ If the kernel calls back to userspace to complete the instantiation of a
+ key, userspace should use this call mark the key as negative before the
+ invoked process returns if it is unable to fulfill the request.
+
+ The process must have write access on the key to be able to instantiate
+ it, and the key must be uninstantiated.
+
+ If a keyring is specified (non-zero), the key will also be linked into
+ that keyring, however all the constraints applying in KEYCTL_LINK apply in
+ this case too.
+
+ If the key is rejected, future searches for it will return the specified
+ error code until the rejected key expires. Negating the key is the same
+ as rejecting the key with ENOKEY as the error code.
+
+
+ * Set the default request-key destination keyring::
+
+ long keyctl(KEYCTL_SET_REQKEY_KEYRING, int reqkey_defl);
+
+ This sets the default keyring to which implicitly requested keys will be
+ attached for this thread. reqkey_defl should be one of these constants::
+
+ CONSTANT VALUE NEW DEFAULT KEYRING
+ ====================================== ====== =======================
+ KEY_REQKEY_DEFL_NO_CHANGE -1 No change
+ KEY_REQKEY_DEFL_DEFAULT 0 Default[1]
+ KEY_REQKEY_DEFL_THREAD_KEYRING 1 Thread keyring
+ KEY_REQKEY_DEFL_PROCESS_KEYRING 2 Process keyring
+ KEY_REQKEY_DEFL_SESSION_KEYRING 3 Session keyring
+ KEY_REQKEY_DEFL_USER_KEYRING 4 User keyring
+ KEY_REQKEY_DEFL_USER_SESSION_KEYRING 5 User session keyring
+ KEY_REQKEY_DEFL_GROUP_KEYRING 6 Group keyring
+
+ The old default will be returned if successful and error EINVAL will be
+ returned if reqkey_defl is not one of the above values.
+
+ The default keyring can be overridden by the keyring indicated to the
+ request_key() system call.
+
+ Note that this setting is inherited across fork/exec.
+
+ [1] The default is: the thread keyring if there is one, otherwise
+ the process keyring if there is one, otherwise the session keyring if
+ there is one, otherwise the user default session keyring.
+
+
+ * Set the timeout on a key::
+
+ long keyctl(KEYCTL_SET_TIMEOUT, key_serial_t key, unsigned timeout);
+
+ This sets or clears the timeout on a key. The timeout can be 0 to clear
+ the timeout or a number of seconds to set the expiry time that far into
+ the future.
+
+ The process must have attribute modification access on a key to set its
+ timeout. Timeouts may not be set with this function on negative, revoked
+ or expired keys.
+
+
+ * Assume the authority granted to instantiate a key::
+
+ long keyctl(KEYCTL_ASSUME_AUTHORITY, key_serial_t key);
+
+ This assumes or divests the authority required to instantiate the
+ specified key. Authority can only be assumed if the thread has the
+ authorisation key associated with the specified key in its keyrings
+ somewhere.
+
+ Once authority is assumed, searches for keys will also search the
+ requester's keyrings using the requester's security label, UID, GID and
+ groups.
+
+ If the requested authority is unavailable, error EPERM will be returned,
+ likewise if the authority has been revoked because the target key is
+ already instantiated.
+
+ If the specified key is 0, then any assumed authority will be divested.
+
+ The assumed authoritative key is inherited across fork and exec.
+
+
+ * Get the LSM security context attached to a key::
+
+ long keyctl(KEYCTL_GET_SECURITY, key_serial_t key, char *buffer,
+ size_t buflen)
+
+ This function returns a string that represents the LSM security context
+ attached to a key in the buffer provided.
+
+ Unless there's an error, it always returns the amount of data it could
+ produce, even if that's too big for the buffer, but it won't copy more
+ than requested to userspace. If the buffer pointer is NULL then no copy
+ will take place.
+
+ A NUL character is included at the end of the string if the buffer is
+ sufficiently big. This is included in the returned count. If no LSM is
+ in force then an empty string will be returned.
+
+ A process must have view permission on the key for this function to be
+ successful.
+
+
+ * Install the calling process's session keyring on its parent::
+
+ long keyctl(KEYCTL_SESSION_TO_PARENT);
+
+ This functions attempts to install the calling process's session keyring
+ on to the calling process's parent, replacing the parent's current session
+ keyring.
+
+ The calling process must have the same ownership as its parent, the
+ keyring must have the same ownership as the calling process, the calling
+ process must have LINK permission on the keyring and the active LSM module
+ mustn't deny permission, otherwise error EPERM will be returned.
+
+ Error ENOMEM will be returned if there was insufficient memory to complete
+ the operation, otherwise 0 will be returned to indicate success.
+
+ The keyring will be replaced next time the parent process leaves the
+ kernel and resumes executing userspace.
+
+
+ * Invalidate a key::
+
+ long keyctl(KEYCTL_INVALIDATE, key_serial_t key);
+
+ This function marks a key as being invalidated and then wakes up the
+ garbage collector. The garbage collector immediately removes invalidated
+ keys from all keyrings and deletes the key when its reference count
+ reaches zero.
+
+ Keys that are marked invalidated become invisible to normal key operations
+ immediately, though they are still visible in /proc/keys until deleted
+ (they're marked with an 'i' flag).
+
+ A process must have search permission on the key for this function to be
+ successful.
+
+ * Compute a Diffie-Hellman shared secret or public key::
+
+ long keyctl(KEYCTL_DH_COMPUTE, struct keyctl_dh_params *params,
+ char *buffer, size_t buflen, struct keyctl_kdf_params *kdf);
+
+ The params struct contains serial numbers for three keys::
+
+ - The prime, p, known to both parties
+ - The local private key
+ - The base integer, which is either a shared generator or the
+ remote public key
+
+ The value computed is::
+
+ result = base ^ private (mod prime)
+
+ If the base is the shared generator, the result is the local
+ public key. If the base is the remote public key, the result is
+ the shared secret.
+
+ If the parameter kdf is NULL, the following applies:
+
+ - The buffer length must be at least the length of the prime, or zero.
+
+ - If the buffer length is nonzero, the length of the result is
+ returned when it is successfully calculated and copied in to the
+ buffer. When the buffer length is zero, the minimum required
+ buffer length is returned.
+
+ The kdf parameter allows the caller to apply a key derivation function
+ (KDF) on the Diffie-Hellman computation where only the result
+ of the KDF is returned to the caller. The KDF is characterized with
+ struct keyctl_kdf_params as follows:
+
+ - ``char *hashname`` specifies the NUL terminated string identifying
+ the hash used from the kernel crypto API and applied for the KDF
+ operation. The KDF implemenation complies with SP800-56A as well
+ as with SP800-108 (the counter KDF).
+
+ - ``char *otherinfo`` specifies the OtherInfo data as documented in
+ SP800-56A section 5.8.1.2. The length of the buffer is given with
+ otherinfolen. The format of OtherInfo is defined by the caller.
+ The otherinfo pointer may be NULL if no OtherInfo shall be used.
+
+ This function will return error EOPNOTSUPP if the key type is not
+ supported, error ENOKEY if the key could not be found, or error
+ EACCES if the key is not readable by the caller. In addition, the
+ function will return EMSGSIZE when the parameter kdf is non-NULL
+ and either the buffer length or the OtherInfo length exceeds the
+ allowed length.
+
+ * Restrict keyring linkage::
+
+ long keyctl(KEYCTL_RESTRICT_KEYRING, key_serial_t keyring,
+ const char *type, const char *restriction);
+
+ An existing keyring can restrict linkage of additional keys by evaluating
+ the contents of the key according to a restriction scheme.
+
+ "keyring" is the key ID for an existing keyring to apply a restriction
+ to. It may be empty or may already have keys linked. Existing linked keys
+ will remain in the keyring even if the new restriction would reject them.
+
+ "type" is a registered key type.
+
+ "restriction" is a string describing how key linkage is to be restricted.
+ The format varies depending on the key type, and the string is passed to
+ the lookup_restriction() function for the requested type. It may specify
+ a method and relevant data for the restriction such as signature
+ verification or constraints on key payload. If the requested key type is
+ later unregistered, no keys may be added to the keyring after the key type
+ is removed.
+
+ To apply a keyring restriction the process must have Set Attribute
+ permission and the keyring must not be previously restricted.
+
+ One application of restricted keyrings is to verify X.509 certificate
+ chains or individual certificate signatures using the asymmetric key type.
+ See Documentation/crypto/asymmetric-keys.txt for specific restrictions
+ applicable to the asymmetric key type.
+
+
+Kernel Services
+===============
+
+The kernel services for key management are fairly simple to deal with. They can
+be broken down into two areas: keys and key types.
+
+Dealing with keys is fairly straightforward. Firstly, the kernel service
+registers its type, then it searches for a key of that type. It should retain
+the key as long as it has need of it, and then it should release it. For a
+filesystem or device file, a search would probably be performed during the open
+call, and the key released upon close. How to deal with conflicting keys due to
+two different users opening the same file is left to the filesystem author to
+solve.
+
+To access the key manager, the following header must be #included::
+
+ <linux/key.h>
+
+Specific key types should have a header file under include/keys/ that should be
+used to access that type. For keys of type "user", for example, that would be::
+
+ <keys/user-type.h>
+
+Note that there are two different types of pointers to keys that may be
+encountered:
+
+ * struct key *
+
+ This simply points to the key structure itself. Key structures will be at
+ least four-byte aligned.
+
+ * key_ref_t
+
+ This is equivalent to a ``struct key *``, but the least significant bit is set
+ if the caller "possesses" the key. By "possession" it is meant that the
+ calling processes has a searchable link to the key from one of its
+ keyrings. There are three functions for dealing with these::
+
+ key_ref_t make_key_ref(const struct key *key, bool possession);
+
+ struct key *key_ref_to_ptr(const key_ref_t key_ref);
+
+ bool is_key_possessed(const key_ref_t key_ref);
+
+ The first function constructs a key reference from a key pointer and
+ possession information (which must be true or false).
+
+ The second function retrieves the key pointer from a reference and the
+ third retrieves the possession flag.
+
+When accessing a key's payload contents, certain precautions must be taken to
+prevent access vs modification races. See the section "Notes on accessing
+payload contents" for more information.
+
+ * To search for a key, call::
+
+ struct key *request_key(const struct key_type *type,
+ const char *description,
+ const char *callout_info);
+
+ This is used to request a key or keyring with a description that matches
+ the description specified according to the key type's match_preparse()
+ method. This permits approximate matching to occur. If callout_string is
+ not NULL, then /sbin/request-key will be invoked in an attempt to obtain
+ the key from userspace. In that case, callout_string will be passed as an
+ argument to the program.
+
+ Should the function fail error ENOKEY, EKEYEXPIRED or EKEYREVOKED will be
+ returned.
+
+ If successful, the key will have been attached to the default keyring for
+ implicitly obtained request-key keys, as set by KEYCTL_SET_REQKEY_KEYRING.
+
+ See also Documentation/security/keys/request-key.rst.
+
+
+ * To search for a key, passing auxiliary data to the upcaller, call::
+
+ struct key *request_key_with_auxdata(const struct key_type *type,
+ const char *description,
+ const void *callout_info,
+ size_t callout_len,
+ void *aux);
+
+ This is identical to request_key(), except that the auxiliary data is
+ passed to the key_type->request_key() op if it exists, and the callout_info
+ is a blob of length callout_len, if given (the length may be 0).
+
+
+ * A key can be requested asynchronously by calling one of::
+
+ struct key *request_key_async(const struct key_type *type,
+ const char *description,
+ const void *callout_info,
+ size_t callout_len);
+
+ or::
+
+ struct key *request_key_async_with_auxdata(const struct key_type *type,
+ const char *description,
+ const char *callout_info,
+ size_t callout_len,
+ void *aux);
+
+ which are asynchronous equivalents of request_key() and
+ request_key_with_auxdata() respectively.
+
+ These two functions return with the key potentially still under
+ construction. To wait for construction completion, the following should be
+ called::
+
+ int wait_for_key_construction(struct key *key, bool intr);
+
+ The function will wait for the key to finish being constructed and then
+ invokes key_validate() to return an appropriate value to indicate the state
+ of the key (0 indicates the key is usable).
+
+ If intr is true, then the wait can be interrupted by a signal, in which
+ case error ERESTARTSYS will be returned.
+
+
+ * When it is no longer required, the key should be released using::
+
+ void key_put(struct key *key);
+
+ Or::
+
+ void key_ref_put(key_ref_t key_ref);
+
+ These can be called from interrupt context. If CONFIG_KEYS is not set then
+ the argument will not be parsed.
+
+
+ * Extra references can be made to a key by calling one of the following
+ functions::
+
+ struct key *__key_get(struct key *key);
+ struct key *key_get(struct key *key);
+
+ Keys so references will need to be disposed of by calling key_put() when
+ they've been finished with. The key pointer passed in will be returned.
+
+ In the case of key_get(), if the pointer is NULL or CONFIG_KEYS is not set
+ then the key will not be dereferenced and no increment will take place.
+
+
+ * A key's serial number can be obtained by calling::
+
+ key_serial_t key_serial(struct key *key);
+
+ If key is NULL or if CONFIG_KEYS is not set then 0 will be returned (in the
+ latter case without parsing the argument).
+
+
+ * If a keyring was found in the search, this can be further searched by::
+
+ key_ref_t keyring_search(key_ref_t keyring_ref,
+ const struct key_type *type,
+ const char *description)
+
+ This searches the keyring tree specified for a matching key. Error ENOKEY
+ is returned upon failure (use IS_ERR/PTR_ERR to determine). If successful,
+ the returned key will need to be released.
+
+ The possession attribute from the keyring reference is used to control
+ access through the permissions mask and is propagated to the returned key
+ reference pointer if successful.
+
+
+ * A keyring can be created by::
+
+ struct key *keyring_alloc(const char *description, uid_t uid, gid_t gid,
+ const struct cred *cred,
+ key_perm_t perm,
+ struct key_restriction *restrict_link,
+ unsigned long flags,
+ struct key *dest);
+
+ This creates a keyring with the given attributes and returns it. If dest
+ is not NULL, the new keyring will be linked into the keyring to which it
+ points. No permission checks are made upon the destination keyring.
+
+ Error EDQUOT can be returned if the keyring would overload the quota (pass
+ KEY_ALLOC_NOT_IN_QUOTA in flags if the keyring shouldn't be accounted
+ towards the user's quota). Error ENOMEM can also be returned.
+
+ If restrict_link is not NULL, it should point to a structure that contains
+ the function that will be called each time an attempt is made to link a
+ key into the new keyring. The structure may also contain a key pointer
+ and an associated key type. The function is called to check whether a key
+ may be added into the keyring or not. The key type is used by the garbage
+ collector to clean up function or data pointers in this structure if the
+ given key type is unregistered. Callers of key_create_or_update() within
+ the kernel can pass KEY_ALLOC_BYPASS_RESTRICTION to suppress the check.
+ An example of using this is to manage rings of cryptographic keys that are
+ set up when the kernel boots where userspace is also permitted to add keys
+ - provided they can be verified by a key the kernel already has.
+
+ When called, the restriction function will be passed the keyring being
+ added to, the key type, the payload of the key being added, and data to be
+ used in the restriction check. Note that when a new key is being created,
+ this is called between payload preparsing and actual key creation. The
+ function should return 0 to allow the link or an error to reject it.
+
+ A convenience function, restrict_link_reject, exists to always return
+ -EPERM to in this case.
+
+
+ * To check the validity of a key, this function can be called::
+
+ int validate_key(struct key *key);
+
+ This checks that the key in question hasn't expired or and hasn't been
+ revoked. Should the key be invalid, error EKEYEXPIRED or EKEYREVOKED will
+ be returned. If the key is NULL or if CONFIG_KEYS is not set then 0 will be
+ returned (in the latter case without parsing the argument).
+
+
+ * To register a key type, the following function should be called::
+
+ int register_key_type(struct key_type *type);
+
+ This will return error EEXIST if a type of the same name is already
+ present.
+
+
+ * To unregister a key type, call::
+
+ void unregister_key_type(struct key_type *type);
+
+
+Under some circumstances, it may be desirable to deal with a bundle of keys.
+The facility provides access to the keyring type for managing such a bundle::
+
+ struct key_type key_type_keyring;
+
+This can be used with a function such as request_key() to find a specific
+keyring in a process's keyrings. A keyring thus found can then be searched
+with keyring_search(). Note that it is not possible to use request_key() to
+search a specific keyring, so using keyrings in this way is of limited utility.
+
+
+Notes On Accessing Payload Contents
+===================================
+
+The simplest payload is just data stored in key->payload directly. In this
+case, there's no need to indulge in RCU or locking when accessing the payload.
+
+More complex payload contents must be allocated and pointers to them set in the
+key->payload.data[] array. One of the following ways must be selected to
+access the data:
+
+ 1) Unmodifiable key type.
+
+ If the key type does not have a modify method, then the key's payload can
+ be accessed without any form of locking, provided that it's known to be
+ instantiated (uninstantiated keys cannot be "found").
+
+ 2) The key's semaphore.
+
+ The semaphore could be used to govern access to the payload and to control
+ the payload pointer. It must be write-locked for modifications and would
+ have to be read-locked for general access. The disadvantage of doing this
+ is that the accessor may be required to sleep.
+
+ 3) RCU.
+
+ RCU must be used when the semaphore isn't already held; if the semaphore
+ is held then the contents can't change under you unexpectedly as the
+ semaphore must still be used to serialise modifications to the key. The
+ key management code takes care of this for the key type.
+
+ However, this means using::
+
+ rcu_read_lock() ... rcu_dereference() ... rcu_read_unlock()
+
+ to read the pointer, and::
+
+ rcu_dereference() ... rcu_assign_pointer() ... call_rcu()
+
+ to set the pointer and dispose of the old contents after a grace period.
+ Note that only the key type should ever modify a key's payload.
+
+ Furthermore, an RCU controlled payload must hold a struct rcu_head for the
+ use of call_rcu() and, if the payload is of variable size, the length of
+ the payload. key->datalen cannot be relied upon to be consistent with the
+ payload just dereferenced if the key's semaphore is not held.
+
+ Note that key->payload.data[0] has a shadow that is marked for __rcu
+ usage. This is called key->payload.rcu_data0. The following accessors
+ wrap the RCU calls to this element:
+
+ a) Set or change the first payload pointer::
+
+ rcu_assign_keypointer(struct key *key, void *data);
+
+ b) Read the first payload pointer with the key semaphore held::
+
+ [const] void *dereference_key_locked([const] struct key *key);
+
+ Note that the return value will inherit its constness from the key
+ parameter. Static analysis will give an error if it things the lock
+ isn't held.
+
+ c) Read the first payload pointer with the RCU read lock held::
+
+ const void *dereference_key_rcu(const struct key *key);
+
+
+Defining a Key Type
+===================
+
+A kernel service may want to define its own key type. For instance, an AFS
+filesystem might want to define a Kerberos 5 ticket key type. To do this, it
+author fills in a key_type struct and registers it with the system.
+
+Source files that implement key types should include the following header file::
+
+ <linux/key-type.h>
+
+The structure has a number of fields, some of which are mandatory:
+
+ * ``const char *name``
+
+ The name of the key type. This is used to translate a key type name
+ supplied by userspace into a pointer to the structure.
+
+
+ * ``size_t def_datalen``
+
+ This is optional - it supplies the default payload data length as
+ contributed to the quota. If the key type's payload is always or almost
+ always the same size, then this is a more efficient way to do things.
+
+ The data length (and quota) on a particular key can always be changed
+ during instantiation or update by calling::
+
+ int key_payload_reserve(struct key *key, size_t datalen);
+
+ With the revised data length. Error EDQUOT will be returned if this is not
+ viable.
+
+
+ * ``int (*vet_description)(const char *description);``
+
+ This optional method is called to vet a key description. If the key type
+ doesn't approve of the key description, it may return an error, otherwise
+ it should return 0.
+
+
+ * ``int (*preparse)(struct key_preparsed_payload *prep);``
+
+ This optional method permits the key type to attempt to parse payload
+ before a key is created (add key) or the key semaphore is taken (update or
+ instantiate key). The structure pointed to by prep looks like::
+
+ struct key_preparsed_payload {
+ char *description;
+ union key_payload payload;
+ const void *data;
+ size_t datalen;
+ size_t quotalen;
+ time_t expiry;
+ };
+
+ Before calling the method, the caller will fill in data and datalen with
+ the payload blob parameters; quotalen will be filled in with the default
+ quota size from the key type; expiry will be set to TIME_T_MAX and the
+ rest will be cleared.
+
+ If a description can be proposed from the payload contents, that should be
+ attached as a string to the description field. This will be used for the
+ key description if the caller of add_key() passes NULL or "".
+
+ The method can attach anything it likes to payload. This is merely passed
+ along to the instantiate() or update() operations. If set, the expiry
+ time will be applied to the key if it is instantiated from this data.
+
+ The method should return 0 if successful or a negative error code
+ otherwise.
+
+
+ * ``void (*free_preparse)(struct key_preparsed_payload *prep);``
+
+ This method is only required if the preparse() method is provided,
+ otherwise it is unused. It cleans up anything attached to the description
+ and payload fields of the key_preparsed_payload struct as filled in by the
+ preparse() method. It will always be called after preparse() returns
+ successfully, even if instantiate() or update() succeed.
+
+
+ * ``int (*instantiate)(struct key *key, struct key_preparsed_payload *prep);``
+
+ This method is called to attach a payload to a key during construction.
+ The payload attached need not bear any relation to the data passed to this
+ function.
+
+ The prep->data and prep->datalen fields will define the original payload
+ blob. If preparse() was supplied then other fields may be filled in also.
+
+ If the amount of data attached to the key differs from the size in
+ keytype->def_datalen, then key_payload_reserve() should be called.
+
+ This method does not have to lock the key in order to attach a payload.
+ The fact that KEY_FLAG_INSTANTIATED is not set in key->flags prevents
+ anything else from gaining access to the key.
+
+ It is safe to sleep in this method.
+
+ generic_key_instantiate() is provided to simply copy the data from
+ prep->payload.data[] to key->payload.data[], with RCU-safe assignment on
+ the first element. It will then clear prep->payload.data[] so that the
+ free_preparse method doesn't release the data.
+
+
+ * ``int (*update)(struct key *key, const void *data, size_t datalen);``
+
+ If this type of key can be updated, then this method should be provided.
+ It is called to update a key's payload from the blob of data provided.
+
+ The prep->data and prep->datalen fields will define the original payload
+ blob. If preparse() was supplied then other fields may be filled in also.
+
+ key_payload_reserve() should be called if the data length might change
+ before any changes are actually made. Note that if this succeeds, the type
+ is committed to changing the key because it's already been altered, so all
+ memory allocation must be done first.
+
+ The key will have its semaphore write-locked before this method is called,
+ but this only deters other writers; any changes to the key's payload must
+ be made under RCU conditions, and call_rcu() must be used to dispose of
+ the old payload.
+
+ key_payload_reserve() should be called before the changes are made, but
+ after all allocations and other potentially failing function calls are
+ made.
+
+ It is safe to sleep in this method.
+
+
+ * ``int (*match_preparse)(struct key_match_data *match_data);``
+
+ This method is optional. It is called when a key search is about to be
+ performed. It is given the following structure::
+
+ struct key_match_data {
+ bool (*cmp)(const struct key *key,
+ const struct key_match_data *match_data);
+ const void *raw_data;
+ void *preparsed;
+ unsigned lookup_type;
+ };
+
+ On entry, raw_data will be pointing to the criteria to be used in matching
+ a key by the caller and should not be modified. ``(*cmp)()`` will be pointing
+ to the default matcher function (which does an exact description match
+ against raw_data) and lookup_type will be set to indicate a direct lookup.
+
+ The following lookup_type values are available:
+
+ * KEYRING_SEARCH_LOOKUP_DIRECT - A direct lookup hashes the type and
+ description to narrow down the search to a small number of keys.
+
+ * KEYRING_SEARCH_LOOKUP_ITERATE - An iterative lookup walks all the
+ keys in the keyring until one is matched. This must be used for any
+ search that's not doing a simple direct match on the key description.
+
+ The method may set cmp to point to a function of its choice that does some
+ other form of match, may set lookup_type to KEYRING_SEARCH_LOOKUP_ITERATE
+ and may attach something to the preparsed pointer for use by ``(*cmp)()``.
+ ``(*cmp)()`` should return true if a key matches and false otherwise.
+
+ If preparsed is set, it may be necessary to use the match_free() method to
+ clean it up.
+
+ The method should return 0 if successful or a negative error code
+ otherwise.
+
+ It is permitted to sleep in this method, but ``(*cmp)()`` may not sleep as
+ locks will be held over it.
+
+ If match_preparse() is not provided, keys of this type will be matched
+ exactly by their description.
+
+
+ * ``void (*match_free)(struct key_match_data *match_data);``
+
+ This method is optional. If given, it called to clean up
+ match_data->preparsed after a successful call to match_preparse().
+
+
+ * ``void (*revoke)(struct key *key);``
+
+ This method is optional. It is called to discard part of the payload
+ data upon a key being revoked. The caller will have the key semaphore
+ write-locked.
+
+ It is safe to sleep in this method, though care should be taken to avoid
+ a deadlock against the key semaphore.
+
+
+ * ``void (*destroy)(struct key *key);``
+
+ This method is optional. It is called to discard the payload data on a key
+ when it is being destroyed.
+
+ This method does not need to lock the key to access the payload; it can
+ consider the key as being inaccessible at this time. Note that the key's
+ type may have been changed before this function is called.
+
+ It is not safe to sleep in this method; the caller may hold spinlocks.
+
+
+ * ``void (*describe)(const struct key *key, struct seq_file *p);``
+
+ This method is optional. It is called during /proc/keys reading to
+ summarise a key's description and payload in text form.
+
+ This method will be called with the RCU read lock held. rcu_dereference()
+ should be used to read the payload pointer if the payload is to be
+ accessed. key->datalen cannot be trusted to stay consistent with the
+ contents of the payload.
+
+ The description will not change, though the key's state may.
+
+ It is not safe to sleep in this method; the RCU read lock is held by the
+ caller.
+
+
+ * ``long (*read)(const struct key *key, char __user *buffer, size_t buflen);``
+
+ This method is optional. It is called by KEYCTL_READ to translate the
+ key's payload into something a blob of data for userspace to deal with.
+ Ideally, the blob should be in the same format as that passed in to the
+ instantiate and update methods.
+
+ If successful, the blob size that could be produced should be returned
+ rather than the size copied.
+
+ This method will be called with the key's semaphore read-locked. This will
+ prevent the key's payload changing. It is not necessary to use RCU locking
+ when accessing the key's payload. It is safe to sleep in this method, such
+ as might happen when the userspace buffer is accessed.
+
+
+ * ``int (*request_key)(struct key_construction *cons, const char *op, void *aux);``
+
+ This method is optional. If provided, request_key() and friends will
+ invoke this function rather than upcalling to /sbin/request-key to operate
+ upon a key of this type.
+
+ The aux parameter is as passed to request_key_async_with_auxdata() and
+ similar or is NULL otherwise. Also passed are the construction record for
+ the key to be operated upon and the operation type (currently only
+ "create").
+
+ This method is permitted to return before the upcall is complete, but the
+ following function must be called under all circumstances to complete the
+ instantiation process, whether or not it succeeds, whether or not there's
+ an error::
+
+ void complete_request_key(struct key_construction *cons, int error);
+
+ The error parameter should be 0 on success, -ve on error. The
+ construction record is destroyed by this action and the authorisation key
+ will be revoked. If an error is indicated, the key under construction
+ will be negatively instantiated if it wasn't already instantiated.
+
+ If this method returns an error, that error will be returned to the
+ caller of request_key*(). complete_request_key() must be called prior to
+ returning.
+
+ The key under construction and the authorisation key can be found in the
+ key_construction struct pointed to by cons:
+
+ * ``struct key *key;``
+
+ The key under construction.
+
+ * ``struct key *authkey;``
+
+ The authorisation key.
+
+
+ * ``struct key_restriction *(*lookup_restriction)(const char *params);``
+
+ This optional method is used to enable userspace configuration of keyring
+ restrictions. The restriction parameter string (not including the key type
+ name) is passed in, and this method returns a pointer to a key_restriction
+ structure containing the relevant functions and data to evaluate each
+ attempted key link operation. If there is no match, -EINVAL is returned.
+
+
+Request-Key Callback Service
+============================
+
+To create a new key, the kernel will attempt to execute the following command
+line::
+
+ /sbin/request-key create <key> <uid> <gid> \
+ <threadring> <processring> <sessionring> <callout_info>
+
+<key> is the key being constructed, and the three keyrings are the process
+keyrings from the process that caused the search to be issued. These are
+included for two reasons:
+
+ 1 There may be an authentication token in one of the keyrings that is
+ required to obtain the key, eg: a Kerberos Ticket-Granting Ticket.
+
+ 2 The new key should probably be cached in one of these rings.
+
+This program should set it UID and GID to those specified before attempting to
+access any more keys. It may then look around for a user specific process to
+hand the request off to (perhaps a path held in placed in another key by, for
+example, the KDE desktop manager).
+
+The program (or whatever it calls) should finish construction of the key by
+calling KEYCTL_INSTANTIATE or KEYCTL_INSTANTIATE_IOV, which also permits it to
+cache the key in one of the keyrings (probably the session ring) before
+returning. Alternatively, the key can be marked as negative with KEYCTL_NEGATE
+or KEYCTL_REJECT; this also permits the key to be cached in one of the
+keyrings.
+
+If it returns with the key remaining in the unconstructed state, the key will
+be marked as being negative, it will be added to the session keyring, and an
+error will be returned to the key requestor.
+
+Supplementary information may be provided from whoever or whatever invoked this
+service. This will be passed as the <callout_info> parameter. If no such
+information was made available, then "-" will be passed as this parameter
+instead.
+
+
+Similarly, the kernel may attempt to update an expired or a soon to expire key
+by executing::
+
+ /sbin/request-key update <key> <uid> <gid> \
+ <threadring> <processring> <sessionring>
+
+In this case, the program isn't required to actually attach the key to a ring;
+the rings are provided for reference.
+
+
+Garbage Collection
+==================
+
+Dead keys (for which the type has been removed) will be automatically unlinked
+from those keyrings that point to them and deleted as soon as possible by a
+background garbage collector.
+
+Similarly, revoked and expired keys will be garbage collected, but only after a
+certain amount of time has passed. This time is set as a number of seconds in::
+
+ /proc/sys/kernel/keys/gc_delay
diff --git a/Documentation/security/keys/ecryptfs.rst b/Documentation/security/keys/ecryptfs.rst
new file mode 100644
index 000000000000..4920f3a8ea75
--- /dev/null
+++ b/Documentation/security/keys/ecryptfs.rst
@@ -0,0 +1,73 @@
+==========================================
+Encrypted keys for the eCryptfs filesystem
+==========================================
+
+ECryptfs is a stacked filesystem which transparently encrypts and decrypts each
+file using a randomly generated File Encryption Key (FEK).
+
+Each FEK is in turn encrypted with a File Encryption Key Encryption Key (FEFEK)
+either in kernel space or in user space with a daemon called 'ecryptfsd'. In
+the former case the operation is performed directly by the kernel CryptoAPI
+using a key, the FEFEK, derived from a user prompted passphrase; in the latter
+the FEK is encrypted by 'ecryptfsd' with the help of external libraries in order
+to support other mechanisms like public key cryptography, PKCS#11 and TPM based
+operations.
+
+The data structure defined by eCryptfs to contain information required for the
+FEK decryption is called authentication token and, currently, can be stored in a
+kernel key of the 'user' type, inserted in the user's session specific keyring
+by the userspace utility 'mount.ecryptfs' shipped with the package
+'ecryptfs-utils'.
+
+The 'encrypted' key type has been extended with the introduction of the new
+format 'ecryptfs' in order to be used in conjunction with the eCryptfs
+filesystem. Encrypted keys of the newly introduced format store an
+authentication token in its payload with a FEFEK randomly generated by the
+kernel and protected by the parent master key.
+
+In order to avoid known-plaintext attacks, the datablob obtained through
+commands 'keyctl print' or 'keyctl pipe' does not contain the overall
+authentication token, which content is well known, but only the FEFEK in
+encrypted form.
+
+The eCryptfs filesystem may really benefit from using encrypted keys in that the
+required key can be securely generated by an Administrator and provided at boot
+time after the unsealing of a 'trusted' key in order to perform the mount in a
+controlled environment. Another advantage is that the key is not exposed to
+threats of malicious software, because it is available in clear form only at
+kernel level.
+
+Usage::
+
+ keyctl add encrypted name "new ecryptfs key-type:master-key-name keylen" ring
+ keyctl add encrypted name "load hex_blob" ring
+ keyctl update keyid "update key-type:master-key-name"
+
+Where::
+
+ name:= '<16 hexadecimal characters>'
+ key-type:= 'trusted' | 'user'
+ keylen:= 64
+
+
+Example of encrypted key usage with the eCryptfs filesystem:
+
+Create an encrypted key "1000100010001000" of length 64 bytes with format
+'ecryptfs' and save it using a previously loaded user key "test"::
+
+ $ keyctl add encrypted 1000100010001000 "new ecryptfs user:test 64" @u
+ 19184530
+
+ $ keyctl print 19184530
+ ecryptfs user:test 64 490045d4bfe48c99f0d465fbbbb79e7500da954178e2de0697
+ dd85091f5450a0511219e9f7cd70dcd498038181466f78ac8d4c19504fcc72402bfc41c2
+ f253a41b7507ccaa4b2b03fff19a69d1cc0b16e71746473f023a95488b6edfd86f7fdd40
+ 9d292e4bacded1258880122dd553a661
+
+ $ keyctl pipe 19184530 > ecryptfs.blob
+
+Mount an eCryptfs filesystem using the created encrypted key "1000100010001000"
+into the '/secret' directory::
+
+ $ mount -i -t ecryptfs -oecryptfs_sig=1000100010001000,\
+ ecryptfs_cipher=aes,ecryptfs_key_bytes=32 /secret /secret
diff --git a/Documentation/security/keys/index.rst b/Documentation/security/keys/index.rst
new file mode 100644
index 000000000000..647d58f2588e
--- /dev/null
+++ b/Documentation/security/keys/index.rst
@@ -0,0 +1,11 @@
+===========
+Kernel Keys
+===========
+
+.. toctree::
+ :maxdepth: 1
+
+ core
+ ecryptfs
+ request-key
+ trusted-encrypted
diff --git a/Documentation/security/keys/request-key.rst b/Documentation/security/keys/request-key.rst
new file mode 100644
index 000000000000..b2d16abaa9e9
--- /dev/null
+++ b/Documentation/security/keys/request-key.rst
@@ -0,0 +1,199 @@
+===================
+Key Request Service
+===================
+
+The key request service is part of the key retention service (refer to
+Documentation/security/core.rst). This document explains more fully how
+the requesting algorithm works.
+
+The process starts by either the kernel requesting a service by calling
+``request_key*()``::
+
+ struct key *request_key(const struct key_type *type,
+ const char *description,
+ const char *callout_info);
+
+or::
+
+ struct key *request_key_with_auxdata(const struct key_type *type,
+ const char *description,
+ const char *callout_info,
+ size_t callout_len,
+ void *aux);
+
+or::
+
+ struct key *request_key_async(const struct key_type *type,
+ const char *description,
+ const char *callout_info,
+ size_t callout_len);
+
+or::
+
+ struct key *request_key_async_with_auxdata(const struct key_type *type,
+ const char *description,
+ const char *callout_info,
+ size_t callout_len,
+ void *aux);
+
+Or by userspace invoking the request_key system call::
+
+ key_serial_t request_key(const char *type,
+ const char *description,
+ const char *callout_info,
+ key_serial_t dest_keyring);
+
+The main difference between the access points is that the in-kernel interface
+does not need to link the key to a keyring to prevent it from being immediately
+destroyed. The kernel interface returns a pointer directly to the key, and
+it's up to the caller to destroy the key.
+
+The request_key*_with_auxdata() calls are like the in-kernel request_key*()
+calls, except that they permit auxiliary data to be passed to the upcaller (the
+default is NULL). This is only useful for those key types that define their
+own upcall mechanism rather than using /sbin/request-key.
+
+The two async in-kernel calls may return keys that are still in the process of
+being constructed. The two non-async ones will wait for construction to
+complete first.
+
+The userspace interface links the key to a keyring associated with the process
+to prevent the key from going away, and returns the serial number of the key to
+the caller.
+
+
+The following example assumes that the key types involved don't define their
+own upcall mechanisms. If they do, then those should be substituted for the
+forking and execution of /sbin/request-key.
+
+
+The Process
+===========
+
+A request proceeds in the following manner:
+
+ 1) Process A calls request_key() [the userspace syscall calls the kernel
+ interface].
+
+ 2) request_key() searches the process's subscribed keyrings to see if there's
+ a suitable key there. If there is, it returns the key. If there isn't,
+ and callout_info is not set, an error is returned. Otherwise the process
+ proceeds to the next step.
+
+ 3) request_key() sees that A doesn't have the desired key yet, so it creates
+ two things:
+
+ a) An uninstantiated key U of requested type and description.
+
+ b) An authorisation key V that refers to key U and notes that process A
+ is the context in which key U should be instantiated and secured, and
+ from which associated key requests may be satisfied.
+
+ 4) request_key() then forks and executes /sbin/request-key with a new session
+ keyring that contains a link to auth key V.
+
+ 5) /sbin/request-key assumes the authority associated with key U.
+
+ 6) /sbin/request-key execs an appropriate program to perform the actual
+ instantiation.
+
+ 7) The program may want to access another key from A's context (say a
+ Kerberos TGT key). It just requests the appropriate key, and the keyring
+ search notes that the session keyring has auth key V in its bottom level.
+
+ This will permit it to then search the keyrings of process A with the
+ UID, GID, groups and security info of process A as if it was process A,
+ and come up with key W.
+
+ 8) The program then does what it must to get the data with which to
+ instantiate key U, using key W as a reference (perhaps it contacts a
+ Kerberos server using the TGT) and then instantiates key U.
+
+ 9) Upon instantiating key U, auth key V is automatically revoked so that it
+ may not be used again.
+
+ 10) The program then exits 0 and request_key() deletes key V and returns key
+ U to the caller.
+
+This also extends further. If key W (step 7 above) didn't exist, key W would
+be created uninstantiated, another auth key (X) would be created (as per step
+3) and another copy of /sbin/request-key spawned (as per step 4); but the
+context specified by auth key X will still be process A, as it was in auth key
+V.
+
+This is because process A's keyrings can't simply be attached to
+/sbin/request-key at the appropriate places because (a) execve will discard two
+of them, and (b) it requires the same UID/GID/Groups all the way through.
+
+
+Negative Instantiation And Rejection
+====================================
+
+Rather than instantiating a key, it is possible for the possessor of an
+authorisation key to negatively instantiate a key that's under construction.
+This is a short duration placeholder that causes any attempt at re-requesting
+the key whilst it exists to fail with error ENOKEY if negated or the specified
+error if rejected.
+
+This is provided to prevent excessive repeated spawning of /sbin/request-key
+processes for a key that will never be obtainable.
+
+Should the /sbin/request-key process exit anything other than 0 or die on a
+signal, the key under construction will be automatically negatively
+instantiated for a short amount of time.
+
+
+The Search Algorithm
+====================
+
+A search of any particular keyring proceeds in the following fashion:
+
+ 1) When the key management code searches for a key (keyring_search_aux) it
+ firstly calls key_permission(SEARCH) on the keyring it's starting with,
+ if this denies permission, it doesn't search further.
+
+ 2) It considers all the non-keyring keys within that keyring and, if any key
+ matches the criteria specified, calls key_permission(SEARCH) on it to see
+ if the key is allowed to be found. If it is, that key is returned; if
+ not, the search continues, and the error code is retained if of higher
+ priority than the one currently set.
+
+ 3) It then considers all the keyring-type keys in the keyring it's currently
+ searching. It calls key_permission(SEARCH) on each keyring, and if this
+ grants permission, it recurses, executing steps (2) and (3) on that
+ keyring.
+
+The process stops immediately a valid key is found with permission granted to
+use it. Any error from a previous match attempt is discarded and the key is
+returned.
+
+When search_process_keyrings() is invoked, it performs the following searches
+until one succeeds:
+
+ 1) If extant, the process's thread keyring is searched.
+
+ 2) If extant, the process's process keyring is searched.
+
+ 3) The process's session keyring is searched.
+
+ 4) If the process has assumed the authority associated with a request_key()
+ authorisation key then:
+
+ a) If extant, the calling process's thread keyring is searched.
+
+ b) If extant, the calling process's process keyring is searched.
+
+ c) The calling process's session keyring is searched.
+
+The moment one succeeds, all pending errors are discarded and the found key is
+returned.
+
+Only if all these fail does the whole thing fail with the highest priority
+error. Note that several errors may have come from LSM.
+
+The error priority is::
+
+ EKEYREVOKED > EKEYEXPIRED > ENOKEY
+
+EACCES/EPERM are only returned on a direct search of a specific keyring where
+the basal keyring does not grant Search permission.
diff --git a/Documentation/security/keys/trusted-encrypted.rst b/Documentation/security/keys/trusted-encrypted.rst
new file mode 100644
index 000000000000..3bb24e09a332
--- /dev/null
+++ b/Documentation/security/keys/trusted-encrypted.rst
@@ -0,0 +1,175 @@
+==========================
+Trusted and Encrypted Keys
+==========================
+
+Trusted and Encrypted Keys are two new key types added to the existing kernel
+key ring service. Both of these new types are variable length symmetric keys,
+and in both cases all keys are created in the kernel, and user space sees,
+stores, and loads only encrypted blobs. Trusted Keys require the availability
+of a Trusted Platform Module (TPM) chip for greater security, while Encrypted
+Keys can be used on any system. All user level blobs, are displayed and loaded
+in hex ascii for convenience, and are integrity verified.
+
+Trusted Keys use a TPM both to generate and to seal the keys. Keys are sealed
+under a 2048 bit RSA key in the TPM, and optionally sealed to specified PCR
+(integrity measurement) values, and only unsealed by the TPM, if PCRs and blob
+integrity verifications match. A loaded Trusted Key can be updated with new
+(future) PCR values, so keys are easily migrated to new pcr values, such as
+when the kernel and initramfs are updated. The same key can have many saved
+blobs under different PCR values, so multiple boots are easily supported.
+
+By default, trusted keys are sealed under the SRK, which has the default
+authorization value (20 zeros). This can be set at takeownership time with the
+trouser's utility: "tpm_takeownership -u -z".
+
+Usage::
+
+ keyctl add trusted name "new keylen [options]" ring
+ keyctl add trusted name "load hex_blob [pcrlock=pcrnum]" ring
+ keyctl update key "update [options]"
+ keyctl print keyid
+
+ options:
+ keyhandle= ascii hex value of sealing key default 0x40000000 (SRK)
+ keyauth= ascii hex auth for sealing key default 0x00...i
+ (40 ascii zeros)
+ blobauth= ascii hex auth for sealed data default 0x00...
+ (40 ascii zeros)
+ pcrinfo= ascii hex of PCR_INFO or PCR_INFO_LONG (no default)
+ pcrlock= pcr number to be extended to "lock" blob
+ migratable= 0|1 indicating permission to reseal to new PCR values,
+ default 1 (resealing allowed)
+ hash= hash algorithm name as a string. For TPM 1.x the only
+ allowed value is sha1. For TPM 2.x the allowed values
+ are sha1, sha256, sha384, sha512 and sm3-256.
+ policydigest= digest for the authorization policy. must be calculated
+ with the same hash algorithm as specified by the 'hash='
+ option.
+ policyhandle= handle to an authorization policy session that defines the
+ same policy and with the same hash algorithm as was used to
+ seal the key.
+
+"keyctl print" returns an ascii hex copy of the sealed key, which is in standard
+TPM_STORED_DATA format. The key length for new keys are always in bytes.
+Trusted Keys can be 32 - 128 bytes (256 - 1024 bits), the upper limit is to fit
+within the 2048 bit SRK (RSA) keylength, with all necessary structure/padding.
+
+Encrypted keys do not depend on a TPM, and are faster, as they use AES for
+encryption/decryption. New keys are created from kernel generated random
+numbers, and are encrypted/decrypted using a specified 'master' key. The
+'master' key can either be a trusted-key or user-key type. The main
+disadvantage of encrypted keys is that if they are not rooted in a trusted key,
+they are only as secure as the user key encrypting them. The master user key
+should therefore be loaded in as secure a way as possible, preferably early in
+boot.
+
+The decrypted portion of encrypted keys can contain either a simple symmetric
+key or a more complex structure. The format of the more complex structure is
+application specific, which is identified by 'format'.
+
+Usage::
+
+ keyctl add encrypted name "new [format] key-type:master-key-name keylen"
+ ring
+ keyctl add encrypted name "load hex_blob" ring
+ keyctl update keyid "update key-type:master-key-name"
+
+Where::
+
+ format:= 'default | ecryptfs'
+ key-type:= 'trusted' | 'user'
+
+
+Examples of trusted and encrypted key usage:
+
+Create and save a trusted key named "kmk" of length 32 bytes::
+
+ $ keyctl add trusted kmk "new 32" @u
+ 440502848
+
+ $ keyctl show
+ Session Keyring
+ -3 --alswrv 500 500 keyring: _ses
+ 97833714 --alswrv 500 -1 \_ keyring: _uid.500
+ 440502848 --alswrv 500 500 \_ trusted: kmk
+
+ $ keyctl print 440502848
+ 0101000000000000000001005d01b7e3f4a6be5709930f3b70a743cbb42e0cc95e18e915
+ 3f60da455bbf1144ad12e4f92b452f966929f6105fd29ca28e4d4d5a031d068478bacb0b
+ 27351119f822911b0a11ba3d3498ba6a32e50dac7f32894dd890eb9ad578e4e292c83722
+ a52e56a097e6a68b3f56f7a52ece0cdccba1eb62cad7d817f6dc58898b3ac15f36026fec
+ d568bd4a706cb60bb37be6d8f1240661199d640b66fb0fe3b079f97f450b9ef9c22c6d5d
+ dd379f0facd1cd020281dfa3c70ba21a3fa6fc2471dc6d13ecf8298b946f65345faa5ef0
+ f1f8fff03ad0acb083725535636addb08d73dedb9832da198081e5deae84bfaf0409c22b
+ e4a8aea2b607ec96931e6f4d4fe563ba
+
+ $ keyctl pipe 440502848 > kmk.blob
+
+Load a trusted key from the saved blob::
+
+ $ keyctl add trusted kmk "load `cat kmk.blob`" @u
+ 268728824
+
+ $ keyctl print 268728824
+ 0101000000000000000001005d01b7e3f4a6be5709930f3b70a743cbb42e0cc95e18e915
+ 3f60da455bbf1144ad12e4f92b452f966929f6105fd29ca28e4d4d5a031d068478bacb0b
+ 27351119f822911b0a11ba3d3498ba6a32e50dac7f32894dd890eb9ad578e4e292c83722
+ a52e56a097e6a68b3f56f7a52ece0cdccba1eb62cad7d817f6dc58898b3ac15f36026fec
+ d568bd4a706cb60bb37be6d8f1240661199d640b66fb0fe3b079f97f450b9ef9c22c6d5d
+ dd379f0facd1cd020281dfa3c70ba21a3fa6fc2471dc6d13ecf8298b946f65345faa5ef0
+ f1f8fff03ad0acb083725535636addb08d73dedb9832da198081e5deae84bfaf0409c22b
+ e4a8aea2b607ec96931e6f4d4fe563ba
+
+Reseal a trusted key under new pcr values::
+
+ $ keyctl update 268728824 "update pcrinfo=`cat pcr.blob`"
+ $ keyctl print 268728824
+ 010100000000002c0002800093c35a09b70fff26e7a98ae786c641e678ec6ffb6b46d805
+ 77c8a6377aed9d3219c6dfec4b23ffe3000001005d37d472ac8a44023fbb3d18583a4f73
+ d3a076c0858f6f1dcaa39ea0f119911ff03f5406df4f7f27f41da8d7194f45c9f4e00f2e
+ df449f266253aa3f52e55c53de147773e00f0f9aca86c64d94c95382265968c354c5eab4
+ 9638c5ae99c89de1e0997242edfb0b501744e11ff9762dfd951cffd93227cc513384e7e6
+ e782c29435c7ec2edafaa2f4c1fe6e7a781b59549ff5296371b42133777dcc5b8b971610
+ 94bc67ede19e43ddb9dc2baacad374a36feaf0314d700af0a65c164b7082401740e489c9
+ 7ef6a24defe4846104209bf0c3eced7fa1a672ed5b125fc9d8cd88b476a658a4434644ef
+ df8ae9a178e9f83ba9f08d10fa47e4226b98b0702f06b3b8
+
+The initial consumer of trusted keys is EVM, which at boot time needs a high
+quality symmetric key for HMAC protection of file metadata. The use of a
+trusted key provides strong guarantees that the EVM key has not been
+compromised by a user level problem, and when sealed to specific boot PCR
+values, protects against boot and offline attacks. Create and save an
+encrypted key "evm" using the above trusted key "kmk":
+
+option 1: omitting 'format'::
+
+ $ keyctl add encrypted evm "new trusted:kmk 32" @u
+ 159771175
+
+option 2: explicitly defining 'format' as 'default'::
+
+ $ keyctl add encrypted evm "new default trusted:kmk 32" @u
+ 159771175
+
+ $ keyctl print 159771175
+ default trusted:kmk 32 2375725ad57798846a9bbd240de8906f006e66c03af53b1b3
+ 82dbbc55be2a44616e4959430436dc4f2a7a9659aa60bb4652aeb2120f149ed197c564e0
+ 24717c64 5972dcb82ab2dde83376d82b2e3c09ffc
+
+ $ keyctl pipe 159771175 > evm.blob
+
+Load an encrypted key "evm" from saved blob::
+
+ $ keyctl add encrypted evm "load `cat evm.blob`" @u
+ 831684262
+
+ $ keyctl print 831684262
+ default trusted:kmk 32 2375725ad57798846a9bbd240de8906f006e66c03af53b1b3
+ 82dbbc55be2a44616e4959430436dc4f2a7a9659aa60bb4652aeb2120f149ed197c564e0
+ 24717c64 5972dcb82ab2dde83376d82b2e3c09ffc
+
+Other uses for trusted and encrypted keys, such as for disk and file encryption
+are anticipated. In particular the new format 'ecryptfs' has been defined in
+in order to use encrypted keys to mount an eCryptfs filesystem. More details
+about the usage can be found in the file
+``Documentation/security/keys/ecryptfs.rst``.
diff --git a/Documentation/security/self-protection.rst b/Documentation/security/self-protection.rst
new file mode 100644
index 000000000000..60c8bd8b77bf
--- /dev/null
+++ b/Documentation/security/self-protection.rst
@@ -0,0 +1,302 @@
+======================
+Kernel Self-Protection
+======================
+
+Kernel self-protection is the design and implementation of systems and
+structures within the Linux kernel to protect against security flaws in
+the kernel itself. This covers a wide range of issues, including removing
+entire classes of bugs, blocking security flaw exploitation methods,
+and actively detecting attack attempts. Not all topics are explored in
+this document, but it should serve as a reasonable starting point and
+answer any frequently asked questions. (Patches welcome, of course!)
+
+In the worst-case scenario, we assume an unprivileged local attacker
+has arbitrary read and write access to the kernel's memory. In many
+cases, bugs being exploited will not provide this level of access,
+but with systems in place that defend against the worst case we'll
+cover the more limited cases as well. A higher bar, and one that should
+still be kept in mind, is protecting the kernel against a _privileged_
+local attacker, since the root user has access to a vastly increased
+attack surface. (Especially when they have the ability to load arbitrary
+kernel modules.)
+
+The goals for successful self-protection systems would be that they
+are effective, on by default, require no opt-in by developers, have no
+performance impact, do not impede kernel debugging, and have tests. It
+is uncommon that all these goals can be met, but it is worth explicitly
+mentioning them, since these aspects need to be explored, dealt with,
+and/or accepted.
+
+
+Attack Surface Reduction
+========================
+
+The most fundamental defense against security exploits is to reduce the
+areas of the kernel that can be used to redirect execution. This ranges
+from limiting the exposed APIs available to userspace, making in-kernel
+APIs hard to use incorrectly, minimizing the areas of writable kernel
+memory, etc.
+
+Strict kernel memory permissions
+--------------------------------
+
+When all of kernel memory is writable, it becomes trivial for attacks
+to redirect execution flow. To reduce the availability of these targets
+the kernel needs to protect its memory with a tight set of permissions.
+
+Executable code and read-only data must not be writable
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Any areas of the kernel with executable memory must not be writable.
+While this obviously includes the kernel text itself, we must consider
+all additional places too: kernel modules, JIT memory, etc. (There are
+temporary exceptions to this rule to support things like instruction
+alternatives, breakpoints, kprobes, etc. If these must exist in a
+kernel, they are implemented in a way where the memory is temporarily
+made writable during the update, and then returned to the original
+permissions.)
+
+In support of this are ``CONFIG_STRICT_KERNEL_RWX`` and
+``CONFIG_STRICT_MODULE_RWX``, which seek to make sure that code is not
+writable, data is not executable, and read-only data is neither writable
+nor executable.
+
+Most architectures have these options on by default and not user selectable.
+For some architectures like arm that wish to have these be selectable,
+the architecture Kconfig can select ARCH_OPTIONAL_KERNEL_RWX to enable
+a Kconfig prompt. ``CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT`` determines
+the default setting when ARCH_OPTIONAL_KERNEL_RWX is enabled.
+
+Function pointers and sensitive variables must not be writable
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Vast areas of kernel memory contain function pointers that are looked
+up by the kernel and used to continue execution (e.g. descriptor/vector
+tables, file/network/etc operation structures, etc). The number of these
+variables must be reduced to an absolute minimum.
+
+Many such variables can be made read-only by setting them "const"
+so that they live in the .rodata section instead of the .data section
+of the kernel, gaining the protection of the kernel's strict memory
+permissions as described above.
+
+For variables that are initialized once at ``__init`` time, these can
+be marked with the (new and under development) ``__ro_after_init``
+attribute.
+
+What remains are variables that are updated rarely (e.g. GDT). These
+will need another infrastructure (similar to the temporary exceptions
+made to kernel code mentioned above) that allow them to spend the rest
+of their lifetime read-only. (For example, when being updated, only the
+CPU thread performing the update would be given uninterruptible write
+access to the memory.)
+
+Segregation of kernel memory from userspace memory
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The kernel must never execute userspace memory. The kernel must also never
+access userspace memory without explicit expectation to do so. These
+rules can be enforced either by support of hardware-based restrictions
+(x86's SMEP/SMAP, ARM's PXN/PAN) or via emulation (ARM's Memory Domains).
+By blocking userspace memory in this way, execution and data parsing
+cannot be passed to trivially-controlled userspace memory, forcing
+attacks to operate entirely in kernel memory.
+
+Reduced access to syscalls
+--------------------------
+
+One trivial way to eliminate many syscalls for 64-bit systems is building
+without ``CONFIG_COMPAT``. However, this is rarely a feasible scenario.
+
+The "seccomp" system provides an opt-in feature made available to
+userspace, which provides a way to reduce the number of kernel entry
+points available to a running process. This limits the breadth of kernel
+code that can be reached, possibly reducing the availability of a given
+bug to an attack.
+
+An area of improvement would be creating viable ways to keep access to
+things like compat, user namespaces, BPF creation, and perf limited only
+to trusted processes. This would keep the scope of kernel entry points
+restricted to the more regular set of normally available to unprivileged
+userspace.
+
+Restricting access to kernel modules
+------------------------------------
+
+The kernel should never allow an unprivileged user the ability to
+load specific kernel modules, since that would provide a facility to
+unexpectedly extend the available attack surface. (The on-demand loading
+of modules via their predefined subsystems, e.g. MODULE_ALIAS_*, is
+considered "expected" here, though additional consideration should be
+given even to these.) For example, loading a filesystem module via an
+unprivileged socket API is nonsense: only the root or physically local
+user should trigger filesystem module loading. (And even this can be up
+for debate in some scenarios.)
+
+To protect against even privileged users, systems may need to either
+disable module loading entirely (e.g. monolithic kernel builds or
+modules_disabled sysctl), or provide signed modules (e.g.
+``CONFIG_MODULE_SIG_FORCE``, or dm-crypt with LoadPin), to keep from having
+root load arbitrary kernel code via the module loader interface.
+
+
+Memory integrity
+================
+
+There are many memory structures in the kernel that are regularly abused
+to gain execution control during an attack, By far the most commonly
+understood is that of the stack buffer overflow in which the return
+address stored on the stack is overwritten. Many other examples of this
+kind of attack exist, and protections exist to defend against them.
+
+Stack buffer overflow
+---------------------
+
+The classic stack buffer overflow involves writing past the expected end
+of a variable stored on the stack, ultimately writing a controlled value
+to the stack frame's stored return address. The most widely used defense
+is the presence of a stack canary between the stack variables and the
+return address (``CONFIG_CC_STACKPROTECTOR``), which is verified just before
+the function returns. Other defenses include things like shadow stacks.
+
+Stack depth overflow
+--------------------
+
+A less well understood attack is using a bug that triggers the
+kernel to consume stack memory with deep function calls or large stack
+allocations. With this attack it is possible to write beyond the end of
+the kernel's preallocated stack space and into sensitive structures. Two
+important changes need to be made for better protections: moving the
+sensitive thread_info structure elsewhere, and adding a faulting memory
+hole at the bottom of the stack to catch these overflows.
+
+Heap memory integrity
+---------------------
+
+The structures used to track heap free lists can be sanity-checked during
+allocation and freeing to make sure they aren't being used to manipulate
+other memory areas.
+
+Counter integrity
+-----------------
+
+Many places in the kernel use atomic counters to track object references
+or perform similar lifetime management. When these counters can be made
+to wrap (over or under) this traditionally exposes a use-after-free
+flaw. By trapping atomic wrapping, this class of bug vanishes.
+
+Size calculation overflow detection
+-----------------------------------
+
+Similar to counter overflow, integer overflows (usually size calculations)
+need to be detected at runtime to kill this class of bug, which
+traditionally leads to being able to write past the end of kernel buffers.
+
+
+Probabilistic defenses
+======================
+
+While many protections can be considered deterministic (e.g. read-only
+memory cannot be written to), some protections provide only statistical
+defense, in that an attack must gather enough information about a
+running system to overcome the defense. While not perfect, these do
+provide meaningful defenses.
+
+Canaries, blinding, and other secrets
+-------------------------------------
+
+It should be noted that things like the stack canary discussed earlier
+are technically statistical defenses, since they rely on a secret value,
+and such values may become discoverable through an information exposure
+flaw.
+
+Blinding literal values for things like JITs, where the executable
+contents may be partially under the control of userspace, need a similar
+secret value.
+
+It is critical that the secret values used must be separate (e.g.
+different canary per stack) and high entropy (e.g. is the RNG actually
+working?) in order to maximize their success.
+
+Kernel Address Space Layout Randomization (KASLR)
+-------------------------------------------------
+
+Since the location of kernel memory is almost always instrumental in
+mounting a successful attack, making the location non-deterministic
+raises the difficulty of an exploit. (Note that this in turn makes
+the value of information exposures higher, since they may be used to
+discover desired memory locations.)
+
+Text and module base
+~~~~~~~~~~~~~~~~~~~~
+
+By relocating the physical and virtual base address of the kernel at
+boot-time (``CONFIG_RANDOMIZE_BASE``), attacks needing kernel code will be
+frustrated. Additionally, offsetting the module loading base address
+means that even systems that load the same set of modules in the same
+order every boot will not share a common base address with the rest of
+the kernel text.
+
+Stack base
+~~~~~~~~~~
+
+If the base address of the kernel stack is not the same between processes,
+or even not the same between syscalls, targets on or beyond the stack
+become more difficult to locate.
+
+Dynamic memory base
+~~~~~~~~~~~~~~~~~~~
+
+Much of the kernel's dynamic memory (e.g. kmalloc, vmalloc, etc) ends up
+being relatively deterministic in layout due to the order of early-boot
+initializations. If the base address of these areas is not the same
+between boots, targeting them is frustrated, requiring an information
+exposure specific to the region.
+
+Structure layout
+~~~~~~~~~~~~~~~~
+
+By performing a per-build randomization of the layout of sensitive
+structures, attacks must either be tuned to known kernel builds or expose
+enough kernel memory to determine structure layouts before manipulating
+them.
+
+
+Preventing Information Exposures
+================================
+
+Since the locations of sensitive structures are the primary target for
+attacks, it is important to defend against exposure of both kernel memory
+addresses and kernel memory contents (since they may contain kernel
+addresses or other sensitive things like canary values).
+
+Unique identifiers
+------------------
+
+Kernel memory addresses must never be used as identifiers exposed to
+userspace. Instead, use an atomic counter, an idr, or similar unique
+identifier.
+
+Memory initialization
+---------------------
+
+Memory copied to userspace must always be fully initialized. If not
+explicitly memset(), this will require changes to the compiler to make
+sure structure holes are cleared.
+
+Memory poisoning
+----------------
+
+When releasing memory, it is best to poison the contents (clear stack on
+syscall return, wipe heap memory on a free), to avoid reuse attacks that
+rely on the old contents of memory. This frustrates many uninitialized
+variable attacks, stack content exposures, heap content exposures, and
+use-after-free attacks.
+
+Destination tracking
+--------------------
+
+To help kill classes of bugs that result in kernel addresses being
+written to userspace, the destination of writes needs to be tracked. If
+the buffer is destined for userspace (e.g. seq_file backed ``/proc`` files),
+it should automatically censor sensitive values.
diff --git a/Documentation/security/self-protection.txt b/Documentation/security/self-protection.txt
deleted file mode 100644
index 141acfebe6ef..000000000000
--- a/Documentation/security/self-protection.txt
+++ /dev/null
@@ -1,275 +0,0 @@
-# Kernel Self-Protection
-
-Kernel self-protection is the design and implementation of systems and
-structures within the Linux kernel to protect against security flaws in
-the kernel itself. This covers a wide range of issues, including removing
-entire classes of bugs, blocking security flaw exploitation methods,
-and actively detecting attack attempts. Not all topics are explored in
-this document, but it should serve as a reasonable starting point and
-answer any frequently asked questions. (Patches welcome, of course!)
-
-In the worst-case scenario, we assume an unprivileged local attacker
-has arbitrary read and write access to the kernel's memory. In many
-cases, bugs being exploited will not provide this level of access,
-but with systems in place that defend against the worst case we'll
-cover the more limited cases as well. A higher bar, and one that should
-still be kept in mind, is protecting the kernel against a _privileged_
-local attacker, since the root user has access to a vastly increased
-attack surface. (Especially when they have the ability to load arbitrary
-kernel modules.)
-
-The goals for successful self-protection systems would be that they
-are effective, on by default, require no opt-in by developers, have no
-performance impact, do not impede kernel debugging, and have tests. It
-is uncommon that all these goals can be met, but it is worth explicitly
-mentioning them, since these aspects need to be explored, dealt with,
-and/or accepted.
-
-
-## Attack Surface Reduction
-
-The most fundamental defense against security exploits is to reduce the
-areas of the kernel that can be used to redirect execution. This ranges
-from limiting the exposed APIs available to userspace, making in-kernel
-APIs hard to use incorrectly, minimizing the areas of writable kernel
-memory, etc.
-
-### Strict kernel memory permissions
-
-When all of kernel memory is writable, it becomes trivial for attacks
-to redirect execution flow. To reduce the availability of these targets
-the kernel needs to protect its memory with a tight set of permissions.
-
-#### Executable code and read-only data must not be writable
-
-Any areas of the kernel with executable memory must not be writable.
-While this obviously includes the kernel text itself, we must consider
-all additional places too: kernel modules, JIT memory, etc. (There are
-temporary exceptions to this rule to support things like instruction
-alternatives, breakpoints, kprobes, etc. If these must exist in a
-kernel, they are implemented in a way where the memory is temporarily
-made writable during the update, and then returned to the original
-permissions.)
-
-In support of this are CONFIG_STRICT_KERNEL_RWX and
-CONFIG_STRICT_MODULE_RWX, which seek to make sure that code is not
-writable, data is not executable, and read-only data is neither writable
-nor executable.
-
-Most architectures have these options on by default and not user selectable.
-For some architectures like arm that wish to have these be selectable,
-the architecture Kconfig can select ARCH_OPTIONAL_KERNEL_RWX to enable
-a Kconfig prompt. CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT determines
-the default setting when ARCH_OPTIONAL_KERNEL_RWX is enabled.
-
-#### Function pointers and sensitive variables must not be writable
-
-Vast areas of kernel memory contain function pointers that are looked
-up by the kernel and used to continue execution (e.g. descriptor/vector
-tables, file/network/etc operation structures, etc). The number of these
-variables must be reduced to an absolute minimum.
-
-Many such variables can be made read-only by setting them "const"
-so that they live in the .rodata section instead of the .data section
-of the kernel, gaining the protection of the kernel's strict memory
-permissions as described above.
-
-For variables that are initialized once at __init time, these can
-be marked with the (new and under development) __ro_after_init
-attribute.
-
-What remains are variables that are updated rarely (e.g. GDT). These
-will need another infrastructure (similar to the temporary exceptions
-made to kernel code mentioned above) that allow them to spend the rest
-of their lifetime read-only. (For example, when being updated, only the
-CPU thread performing the update would be given uninterruptible write
-access to the memory.)
-
-#### Segregation of kernel memory from userspace memory
-
-The kernel must never execute userspace memory. The kernel must also never
-access userspace memory without explicit expectation to do so. These
-rules can be enforced either by support of hardware-based restrictions
-(x86's SMEP/SMAP, ARM's PXN/PAN) or via emulation (ARM's Memory Domains).
-By blocking userspace memory in this way, execution and data parsing
-cannot be passed to trivially-controlled userspace memory, forcing
-attacks to operate entirely in kernel memory.
-
-### Reduced access to syscalls
-
-One trivial way to eliminate many syscalls for 64-bit systems is building
-without CONFIG_COMPAT. However, this is rarely a feasible scenario.
-
-The "seccomp" system provides an opt-in feature made available to
-userspace, which provides a way to reduce the number of kernel entry
-points available to a running process. This limits the breadth of kernel
-code that can be reached, possibly reducing the availability of a given
-bug to an attack.
-
-An area of improvement would be creating viable ways to keep access to
-things like compat, user namespaces, BPF creation, and perf limited only
-to trusted processes. This would keep the scope of kernel entry points
-restricted to the more regular set of normally available to unprivileged
-userspace.
-
-### Restricting access to kernel modules
-
-The kernel should never allow an unprivileged user the ability to
-load specific kernel modules, since that would provide a facility to
-unexpectedly extend the available attack surface. (The on-demand loading
-of modules via their predefined subsystems, e.g. MODULE_ALIAS_*, is
-considered "expected" here, though additional consideration should be
-given even to these.) For example, loading a filesystem module via an
-unprivileged socket API is nonsense: only the root or physically local
-user should trigger filesystem module loading. (And even this can be up
-for debate in some scenarios.)
-
-To protect against even privileged users, systems may need to either
-disable module loading entirely (e.g. monolithic kernel builds or
-modules_disabled sysctl), or provide signed modules (e.g.
-CONFIG_MODULE_SIG_FORCE, or dm-crypt with LoadPin), to keep from having
-root load arbitrary kernel code via the module loader interface.
-
-
-## Memory integrity
-
-There are many memory structures in the kernel that are regularly abused
-to gain execution control during an attack, By far the most commonly
-understood is that of the stack buffer overflow in which the return
-address stored on the stack is overwritten. Many other examples of this
-kind of attack exist, and protections exist to defend against them.
-
-### Stack buffer overflow
-
-The classic stack buffer overflow involves writing past the expected end
-of a variable stored on the stack, ultimately writing a controlled value
-to the stack frame's stored return address. The most widely used defense
-is the presence of a stack canary between the stack variables and the
-return address (CONFIG_CC_STACKPROTECTOR), which is verified just before
-the function returns. Other defenses include things like shadow stacks.
-
-### Stack depth overflow
-
-A less well understood attack is using a bug that triggers the
-kernel to consume stack memory with deep function calls or large stack
-allocations. With this attack it is possible to write beyond the end of
-the kernel's preallocated stack space and into sensitive structures. Two
-important changes need to be made for better protections: moving the
-sensitive thread_info structure elsewhere, and adding a faulting memory
-hole at the bottom of the stack to catch these overflows.
-
-### Heap memory integrity
-
-The structures used to track heap free lists can be sanity-checked during
-allocation and freeing to make sure they aren't being used to manipulate
-other memory areas.
-
-### Counter integrity
-
-Many places in the kernel use atomic counters to track object references
-or perform similar lifetime management. When these counters can be made
-to wrap (over or under) this traditionally exposes a use-after-free
-flaw. By trapping atomic wrapping, this class of bug vanishes.
-
-### Size calculation overflow detection
-
-Similar to counter overflow, integer overflows (usually size calculations)
-need to be detected at runtime to kill this class of bug, which
-traditionally leads to being able to write past the end of kernel buffers.
-
-
-## Statistical defenses
-
-While many protections can be considered deterministic (e.g. read-only
-memory cannot be written to), some protections provide only statistical
-defense, in that an attack must gather enough information about a
-running system to overcome the defense. While not perfect, these do
-provide meaningful defenses.
-
-### Canaries, blinding, and other secrets
-
-It should be noted that things like the stack canary discussed earlier
-are technically statistical defenses, since they rely on a secret value,
-and such values may become discoverable through an information exposure
-flaw.
-
-Blinding literal values for things like JITs, where the executable
-contents may be partially under the control of userspace, need a similar
-secret value.
-
-It is critical that the secret values used must be separate (e.g.
-different canary per stack) and high entropy (e.g. is the RNG actually
-working?) in order to maximize their success.
-
-### Kernel Address Space Layout Randomization (KASLR)
-
-Since the location of kernel memory is almost always instrumental in
-mounting a successful attack, making the location non-deterministic
-raises the difficulty of an exploit. (Note that this in turn makes
-the value of information exposures higher, since they may be used to
-discover desired memory locations.)
-
-#### Text and module base
-
-By relocating the physical and virtual base address of the kernel at
-boot-time (CONFIG_RANDOMIZE_BASE), attacks needing kernel code will be
-frustrated. Additionally, offsetting the module loading base address
-means that even systems that load the same set of modules in the same
-order every boot will not share a common base address with the rest of
-the kernel text.
-
-#### Stack base
-
-If the base address of the kernel stack is not the same between processes,
-or even not the same between syscalls, targets on or beyond the stack
-become more difficult to locate.
-
-#### Dynamic memory base
-
-Much of the kernel's dynamic memory (e.g. kmalloc, vmalloc, etc) ends up
-being relatively deterministic in layout due to the order of early-boot
-initializations. If the base address of these areas is not the same
-between boots, targeting them is frustrated, requiring an information
-exposure specific to the region.
-
-#### Structure layout
-
-By performing a per-build randomization of the layout of sensitive
-structures, attacks must either be tuned to known kernel builds or expose
-enough kernel memory to determine structure layouts before manipulating
-them.
-
-
-## Preventing Information Exposures
-
-Since the locations of sensitive structures are the primary target for
-attacks, it is important to defend against exposure of both kernel memory
-addresses and kernel memory contents (since they may contain kernel
-addresses or other sensitive things like canary values).
-
-### Unique identifiers
-
-Kernel memory addresses must never be used as identifiers exposed to
-userspace. Instead, use an atomic counter, an idr, or similar unique
-identifier.
-
-### Memory initialization
-
-Memory copied to userspace must always be fully initialized. If not
-explicitly memset(), this will require changes to the compiler to make
-sure structure holes are cleared.
-
-### Memory poisoning
-
-When releasing memory, it is best to poison the contents (clear stack on
-syscall return, wipe heap memory on a free), to avoid reuse attacks that
-rely on the old contents of memory. This frustrates many uninitialized
-variable attacks, stack content exposures, heap content exposures, and
-use-after-free attacks.
-
-### Destination tracking
-
-To help kill classes of bugs that result in kernel addresses being
-written to userspace, the destination of writes needs to be tracked. If
-the buffer is destined for userspace (e.g. seq_file backed /proc files),
-it should automatically censor sensitive values.
diff --git a/Documentation/security/tomoyo.txt b/Documentation/security/tomoyo.txt
deleted file mode 100644
index 200a2d37cbc8..000000000000
--- a/Documentation/security/tomoyo.txt
+++ /dev/null
@@ -1,55 +0,0 @@
---- What is TOMOYO? ---
-
-TOMOYO is a name-based MAC extension (LSM module) for the Linux kernel.
-
-LiveCD-based tutorials are available at
-http://tomoyo.sourceforge.jp/1.7/1st-step/ubuntu10.04-live/
-http://tomoyo.sourceforge.jp/1.7/1st-step/centos5-live/ .
-Though these tutorials use non-LSM version of TOMOYO, they are useful for you
-to know what TOMOYO is.
-
---- How to enable TOMOYO? ---
-
-Build the kernel with CONFIG_SECURITY_TOMOYO=y and pass "security=tomoyo" on
-kernel's command line.
-
-Please see http://tomoyo.sourceforge.jp/2.3/ for details.
-
---- Where is documentation? ---
-
-User <-> Kernel interface documentation is available at
-http://tomoyo.sourceforge.jp/2.3/policy-reference.html .
-
-Materials we prepared for seminars and symposiums are available at
-http://sourceforge.jp/projects/tomoyo/docs/?category_id=532&language_id=1 .
-Below lists are chosen from three aspects.
-
-What is TOMOYO?
- TOMOYO Linux Overview
- http://sourceforge.jp/projects/tomoyo/docs/lca2009-takeda.pdf
- TOMOYO Linux: pragmatic and manageable security for Linux
- http://sourceforge.jp/projects/tomoyo/docs/freedomhectaipei-tomoyo.pdf
- TOMOYO Linux: A Practical Method to Understand and Protect Your Own Linux Box
- http://sourceforge.jp/projects/tomoyo/docs/PacSec2007-en-no-demo.pdf
-
-What can TOMOYO do?
- Deep inside TOMOYO Linux
- http://sourceforge.jp/projects/tomoyo/docs/lca2009-kumaneko.pdf
- The role of "pathname based access control" in security.
- http://sourceforge.jp/projects/tomoyo/docs/lfj2008-bof.pdf
-
-History of TOMOYO?
- Realities of Mainlining
- http://sourceforge.jp/projects/tomoyo/docs/lfj2008.pdf
-
---- What is future plan? ---
-
-We believe that inode based security and name based security are complementary
-and both should be used together. But unfortunately, so far, we cannot enable
-multiple LSM modules at the same time. We feel sorry that you have to give up
-SELinux/SMACK/AppArmor etc. when you want to use TOMOYO.
-
-We hope that LSM becomes stackable in future. Meanwhile, you can use non-LSM
-version of TOMOYO, available at http://tomoyo.sourceforge.jp/1.7/ .
-LSM version of TOMOYO is a subset of non-LSM version of TOMOYO. We are planning
-to port non-LSM version's functionalities to LSM versions.
diff --git a/Documentation/serial/n_gsm.txt b/Documentation/serial/n_gsm.txt
index a5d91126a8f7..875361bb7cb4 100644
--- a/Documentation/serial/n_gsm.txt
+++ b/Documentation/serial/n_gsm.txt
@@ -77,6 +77,13 @@ for example, it's possible :
6- first close all virtual ports before closing the physical port.
+Note that after closing the physical port the modem is still in multiplexing
+mode. This may prevent a successful re-opening of the port later. To avoid
+this situation either reset the modem if your hardware allows that or send
+a disconnect command frame manually before initializing the multiplexing mode
+for the second time. The byte sequence for the disconnect command frame is:
+0xf9, 0x03, 0xef, 0x03, 0xc3, 0x16, 0xf9.
+
Additional Documentation
------------------------
More practical details on the protocol and how it's supported by industrial
diff --git a/Documentation/sgi-ioc4.txt b/Documentation/sgi-ioc4.txt
index 876c96ae38db..72709222d3c0 100644
--- a/Documentation/sgi-ioc4.txt
+++ b/Documentation/sgi-ioc4.txt
@@ -1,3 +1,7 @@
+====================================
+SGI IOC4 PCI (multi function) device
+====================================
+
The SGI IOC4 PCI device is a bit of a strange beast, so some notes on
it are in order.
diff --git a/Documentation/sh/conf.py b/Documentation/sh/conf.py
new file mode 100644
index 000000000000..1eb684a13ac8
--- /dev/null
+++ b/Documentation/sh/conf.py
@@ -0,0 +1,10 @@
+# -*- coding: utf-8; mode: python -*-
+
+project = "SuperH architecture implementation manual"
+
+tags.add("subproject")
+
+latex_documents = [
+ ('index', 'sh.tex', project,
+ 'The kernel development community', 'manual'),
+]
diff --git a/Documentation/sh/index.rst b/Documentation/sh/index.rst
new file mode 100644
index 000000000000..bc8db7ba894a
--- /dev/null
+++ b/Documentation/sh/index.rst
@@ -0,0 +1,59 @@
+=======================
+SuperH Interfaces Guide
+=======================
+
+:Author: Paul Mundt
+
+Memory Management
+=================
+
+SH-4
+----
+
+Store Queue API
+~~~~~~~~~~~~~~~
+
+.. kernel-doc:: arch/sh/kernel/cpu/sh4/sq.c
+ :export:
+
+SH-5
+----
+
+TLB Interfaces
+~~~~~~~~~~~~~~
+
+.. kernel-doc:: arch/sh/mm/tlb-sh5.c
+ :internal:
+
+.. kernel-doc:: arch/sh/include/asm/tlb_64.h
+ :internal:
+
+Machine Specific Interfaces
+===========================
+
+mach-dreamcast
+--------------
+
+.. kernel-doc:: arch/sh/boards/mach-dreamcast/rtc.c
+ :internal:
+
+mach-x3proto
+------------
+
+.. kernel-doc:: arch/sh/boards/mach-x3proto/ilsel.c
+ :export:
+
+Busses
+======
+
+SuperHyway
+----------
+
+.. kernel-doc:: drivers/sh/superhyway/superhyway.c
+ :export:
+
+Maple
+-----
+
+.. kernel-doc:: drivers/sh/maple/maple.c
+ :export:
diff --git a/Documentation/siphash.txt b/Documentation/siphash.txt
index 908d348ff777..9965821ab333 100644
--- a/Documentation/siphash.txt
+++ b/Documentation/siphash.txt
@@ -1,6 +1,8 @@
- SipHash - a short input PRF
------------------------------------------------
-Written by Jason A. Donenfeld <jason@zx2c4.com>
+===========================
+SipHash - a short input PRF
+===========================
+
+:Author: Written by Jason A. Donenfeld <jason@zx2c4.com>
SipHash is a cryptographically secure PRF -- a keyed hash function -- that
performs very well for short inputs, hence the name. It was designed by
@@ -13,58 +15,61 @@ an input buffer or several input integers. It spits out an integer that is
indistinguishable from random. You may then use that integer as part of secure
sequence numbers, secure cookies, or mask it off for use in a hash table.
-1. Generating a key
+Generating a key
+================
Keys should always be generated from a cryptographically secure source of
-random numbers, either using get_random_bytes or get_random_once:
+random numbers, either using get_random_bytes or get_random_once::
-siphash_key_t key;
-get_random_bytes(&key, sizeof(key));
+ siphash_key_t key;
+ get_random_bytes(&key, sizeof(key));
If you're not deriving your key from here, you're doing it wrong.
-2. Using the functions
+Using the functions
+===================
There are two variants of the function, one that takes a list of integers, and
-one that takes a buffer:
+one that takes a buffer::
-u64 siphash(const void *data, size_t len, const siphash_key_t *key);
+ u64 siphash(const void *data, size_t len, const siphash_key_t *key);
-And:
+And::
-u64 siphash_1u64(u64, const siphash_key_t *key);
-u64 siphash_2u64(u64, u64, const siphash_key_t *key);
-u64 siphash_3u64(u64, u64, u64, const siphash_key_t *key);
-u64 siphash_4u64(u64, u64, u64, u64, const siphash_key_t *key);
-u64 siphash_1u32(u32, const siphash_key_t *key);
-u64 siphash_2u32(u32, u32, const siphash_key_t *key);
-u64 siphash_3u32(u32, u32, u32, const siphash_key_t *key);
-u64 siphash_4u32(u32, u32, u32, u32, const siphash_key_t *key);
+ u64 siphash_1u64(u64, const siphash_key_t *key);
+ u64 siphash_2u64(u64, u64, const siphash_key_t *key);
+ u64 siphash_3u64(u64, u64, u64, const siphash_key_t *key);
+ u64 siphash_4u64(u64, u64, u64, u64, const siphash_key_t *key);
+ u64 siphash_1u32(u32, const siphash_key_t *key);
+ u64 siphash_2u32(u32, u32, const siphash_key_t *key);
+ u64 siphash_3u32(u32, u32, u32, const siphash_key_t *key);
+ u64 siphash_4u32(u32, u32, u32, u32, const siphash_key_t *key);
If you pass the generic siphash function something of a constant length, it
will constant fold at compile-time and automatically choose one of the
optimized functions.
-3. Hashtable key function usage:
+Hashtable key function usage::
-struct some_hashtable {
- DECLARE_HASHTABLE(hashtable, 8);
- siphash_key_t key;
-};
+ struct some_hashtable {
+ DECLARE_HASHTABLE(hashtable, 8);
+ siphash_key_t key;
+ };
-void init_hashtable(struct some_hashtable *table)
-{
- get_random_bytes(&table->key, sizeof(table->key));
-}
+ void init_hashtable(struct some_hashtable *table)
+ {
+ get_random_bytes(&table->key, sizeof(table->key));
+ }
-static inline hlist_head *some_hashtable_bucket(struct some_hashtable *table, struct interesting_input *input)
-{
- return &table->hashtable[siphash(input, sizeof(*input), &table->key) & (HASH_SIZE(table->hashtable) - 1)];
-}
+ static inline hlist_head *some_hashtable_bucket(struct some_hashtable *table, struct interesting_input *input)
+ {
+ return &table->hashtable[siphash(input, sizeof(*input), &table->key) & (HASH_SIZE(table->hashtable) - 1)];
+ }
You may then iterate like usual over the returned hash bucket.
-4. Security
+Security
+========
SipHash has a very high security margin, with its 128-bit key. So long as the
key is kept secret, it is impossible for an attacker to guess the outputs of
@@ -73,7 +78,8 @@ is significant.
Linux implements the "2-4" variant of SipHash.
-5. Struct-passing Pitfalls
+Struct-passing Pitfalls
+=======================
Often times the XuY functions will not be large enough, and instead you'll
want to pass a pre-filled struct to siphash. When doing this, it's important
@@ -81,30 +87,32 @@ to always ensure the struct has no padding holes. The easiest way to do this
is to simply arrange the members of the struct in descending order of size,
and to use offsetendof() instead of sizeof() for getting the size. For
performance reasons, if possible, it's probably a good thing to align the
-struct to the right boundary. Here's an example:
-
-const struct {
- struct in6_addr saddr;
- u32 counter;
- u16 dport;
-} __aligned(SIPHASH_ALIGNMENT) combined = {
- .saddr = *(struct in6_addr *)saddr,
- .counter = counter,
- .dport = dport
-};
-u64 h = siphash(&combined, offsetofend(typeof(combined), dport), &secret);
-
-6. Resources
+struct to the right boundary. Here's an example::
+
+ const struct {
+ struct in6_addr saddr;
+ u32 counter;
+ u16 dport;
+ } __aligned(SIPHASH_ALIGNMENT) combined = {
+ .saddr = *(struct in6_addr *)saddr,
+ .counter = counter,
+ .dport = dport
+ };
+ u64 h = siphash(&combined, offsetofend(typeof(combined), dport), &secret);
+
+Resources
+=========
Read the SipHash paper if you're interested in learning more:
https://131002.net/siphash/siphash.pdf
+-------------------------------------------------------------------------------
-~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~
-
+===============================================
HalfSipHash - SipHash's insecure younger cousin
------------------------------------------------
-Written by Jason A. Donenfeld <jason@zx2c4.com>
+===============================================
+
+:Author: Written by Jason A. Donenfeld <jason@zx2c4.com>
On the off-chance that SipHash is not fast enough for your needs, you might be
able to justify using HalfSipHash, a terrifying but potentially useful
@@ -120,7 +128,8 @@ then when you can be absolutely certain that the outputs will never be
transmitted out of the kernel. This is only remotely useful over `jhash` as a
means of mitigating hashtable flooding denial of service attacks.
-1. Generating a key
+Generating a key
+================
Keys should always be generated from a cryptographically secure source of
random numbers, either using get_random_bytes or get_random_once:
@@ -130,44 +139,49 @@ get_random_bytes(&key, sizeof(key));
If you're not deriving your key from here, you're doing it wrong.
-2. Using the functions
+Using the functions
+===================
There are two variants of the function, one that takes a list of integers, and
-one that takes a buffer:
+one that takes a buffer::
-u32 hsiphash(const void *data, size_t len, const hsiphash_key_t *key);
+ u32 hsiphash(const void *data, size_t len, const hsiphash_key_t *key);
-And:
+And::
-u32 hsiphash_1u32(u32, const hsiphash_key_t *key);
-u32 hsiphash_2u32(u32, u32, const hsiphash_key_t *key);
-u32 hsiphash_3u32(u32, u32, u32, const hsiphash_key_t *key);
-u32 hsiphash_4u32(u32, u32, u32, u32, const hsiphash_key_t *key);
+ u32 hsiphash_1u32(u32, const hsiphash_key_t *key);
+ u32 hsiphash_2u32(u32, u32, const hsiphash_key_t *key);
+ u32 hsiphash_3u32(u32, u32, u32, const hsiphash_key_t *key);
+ u32 hsiphash_4u32(u32, u32, u32, u32, const hsiphash_key_t *key);
If you pass the generic hsiphash function something of a constant length, it
will constant fold at compile-time and automatically choose one of the
optimized functions.
-3. Hashtable key function usage:
+Hashtable key function usage
+============================
+
+::
-struct some_hashtable {
- DECLARE_HASHTABLE(hashtable, 8);
- hsiphash_key_t key;
-};
+ struct some_hashtable {
+ DECLARE_HASHTABLE(hashtable, 8);
+ hsiphash_key_t key;
+ };
-void init_hashtable(struct some_hashtable *table)
-{
- get_random_bytes(&table->key, sizeof(table->key));
-}
+ void init_hashtable(struct some_hashtable *table)
+ {
+ get_random_bytes(&table->key, sizeof(table->key));
+ }
-static inline hlist_head *some_hashtable_bucket(struct some_hashtable *table, struct interesting_input *input)
-{
- return &table->hashtable[hsiphash(input, sizeof(*input), &table->key) & (HASH_SIZE(table->hashtable) - 1)];
-}
+ static inline hlist_head *some_hashtable_bucket(struct some_hashtable *table, struct interesting_input *input)
+ {
+ return &table->hashtable[hsiphash(input, sizeof(*input), &table->key) & (HASH_SIZE(table->hashtable) - 1)];
+ }
You may then iterate like usual over the returned hash bucket.
-4. Performance
+Performance
+===========
HalfSipHash is roughly 3 times slower than JenkinsHash. For many replacements,
this will not be a problem, as the hashtable lookup isn't the bottleneck. And
diff --git a/Documentation/smsc_ece1099.txt b/Documentation/smsc_ece1099.txt
index 6b492e82b43d..079277421eaf 100644
--- a/Documentation/smsc_ece1099.txt
+++ b/Documentation/smsc_ece1099.txt
@@ -1,3 +1,7 @@
+=================================================
+Msc Keyboard Scan Expansion/GPIO Expansion device
+=================================================
+
What is smsc-ece1099?
----------------------
diff --git a/Documentation/sound/conf.py b/Documentation/sound/conf.py
new file mode 100644
index 000000000000..3f1fc5e74e7b
--- /dev/null
+++ b/Documentation/sound/conf.py
@@ -0,0 +1,10 @@
+# -*- coding: utf-8; mode: python -*-
+
+project = "Linux Sound Subsystem Documentation"
+
+tags.add("subproject")
+
+latex_documents = [
+ ('index', 'sound.tex', project,
+ 'The kernel development community', 'manual'),
+]
diff --git a/Documentation/sound/designs/index.rst b/Documentation/sound/designs/index.rst
index 04dcdae3e4f2..f0749943ccb2 100644
--- a/Documentation/sound/designs/index.rst
+++ b/Documentation/sound/designs/index.rst
@@ -9,6 +9,7 @@ Designs and Implementations
compress-offload
timestamping
jack-controls
+ tracepoints
procfile
powersave
oss-emulation
diff --git a/Documentation/sound/designs/tracepoints.rst b/Documentation/sound/designs/tracepoints.rst
new file mode 100644
index 000000000000..78bc5572f829
--- /dev/null
+++ b/Documentation/sound/designs/tracepoints.rst
@@ -0,0 +1,172 @@
+===================
+Tracepoints in ALSA
+===================
+
+2017/07/02
+Takasahi Sakamoto
+
+Tracepoints in ALSA PCM core
+============================
+
+ALSA PCM core registers ``snd_pcm`` subsystem to kernel tracepoint system.
+This subsystem includes two categories of tracepoints; for state of PCM buffer
+and for processing of PCM hardware parameters. These tracepoints are available
+when corresponding kernel configurations are enabled. When ``CONFIG_SND_DEBUG``
+is enabled, the latter tracepoints are available. When additional
+``SND_PCM_XRUN_DEBUG`` is enabled too, the former trace points are enabled.
+
+Tracepoints for state of PCM buffer
+------------------------------------
+
+This category includes four tracepoints; ``hwptr``, ``applptr``, ``xrun`` and
+``hw_ptr_error``.
+
+Tracepoints for processing of PCM hardware parameters
+-----------------------------------------------------
+
+This category includes two tracepoints; ``hw_mask_param`` and
+``hw_interval_param``.
+
+In a design of ALSA PCM core, data transmission is abstracted as PCM substream.
+Applications manage PCM substream to maintain data transmission for PCM frames.
+Before starting the data transmission, applications need to configure PCM
+substream. In this procedure, PCM hardware parameters are decided by
+interaction between applications and ALSA PCM core. Once decided, runtime of
+the PCM substream keeps the parameters.
+
+The parameters are described in :c:type:`struct snd_pcm_hw_params`. This
+structure includes several types of parameters. Applications set preferable
+value to these parameters, then execute ioctl(2) with SNDRV_PCM_IOCTL_HW_REFINE
+or SNDRV_PCM_IOCTL_HW_PARAMS. The former is used just for refining available
+set of parameters. The latter is used for an actual decision of the parameters.
+
+The :c:type:`struct snd_pcm_hw_params` structure has below members:
+
+``flags``
+ Configurable. ALSA PCM core and some drivers handle this flag to select
+ convenient parameters or change their behaviour.
+``masks``
+ Configurable. This type of parameter is described in
+ :c:type:`struct snd_mask` and represent mask values. As of PCM protocol
+ v2.0.13, three types are defined.
+
+ - SNDRV_PCM_HW_PARAM_ACCESS
+ - SNDRV_PCM_HW_PARAM_FORMAT
+ - SNDRV_PCM_HW_PARAM_SUBFORMAT
+``intervals``
+ Configurable. This type of parameter is described in
+ :c:type:`struct snd_interval` and represent values with a range. As of
+ PCM protocol v2.0.13, twelve types are defined.
+
+ - SNDRV_PCM_HW_PARAM_SAMPLE_BITS
+ - SNDRV_PCM_HW_PARAM_FRAME_BITS
+ - SNDRV_PCM_HW_PARAM_CHANNELS
+ - SNDRV_PCM_HW_PARAM_RATE
+ - SNDRV_PCM_HW_PARAM_PERIOD_TIME
+ - SNDRV_PCM_HW_PARAM_PERIOD_SIZE
+ - SNDRV_PCM_HW_PARAM_PERIOD_BYTES
+ - SNDRV_PCM_HW_PARAM_PERIODS
+ - SNDRV_PCM_HW_PARAM_BUFFER_TIME
+ - SNDRV_PCM_HW_PARAM_BUFFER_SIZE
+ - SNDRV_PCM_HW_PARAM_BUFFER_BYTES
+ - SNDRV_PCM_HW_PARAM_TICK_TIME
+``rmask``
+ Configurable. This is evaluated at ioctl(2) with
+ SNDRV_PCM_IOCTL_HW_REFINE only. Applications can select which
+ mask/interval parameter can be changed by ALSA PCM core. For
+ SNDRV_PCM_IOCTL_HW_PARAMS, this mask is ignored and all of parameters
+ are going to be changed.
+``cmask``
+ Read-only. After returning from ioctl(2), buffer in user space for
+ :c:type:`struct snd_pcm_hw_params` includes result of each operation.
+ This mask represents which mask/interval parameter is actually changed.
+``info``
+ Read-only. This represents hardware/driver capabilities as bit flags
+ with SNDRV_PCM_INFO_XXX. Typically, applications execute ioctl(2) with
+ SNDRV_PCM_IOCTL_HW_REFINE to retrieve this flag, then decide candidates
+ of parameters and execute ioctl(2) with SNDRV_PCM_IOCTL_HW_PARAMS to
+ configure PCM substream.
+``msbits``
+ Read-only. This value represents available bit width in MSB side of
+ a PCM sample. When a parameter of SNDRV_PCM_HW_PARAM_SAMPLE_BITS was
+ decided as a fixed number, this value is also calculated according to
+ it. Else, zero. But this behaviour depends on implementations in driver
+ side.
+``rate_num``
+ Read-only. This value represents numerator of sampling rate in fraction
+ notation. Basically, when a parameter of SNDRV_PCM_HW_PARAM_RATE was
+ decided as a single value, this value is also calculated according to
+ it. Else, zero. But this behaviour depends on implementations in driver
+ side.
+``rate_den``
+ Read-only. This value represents denominator of sampling rate in
+ fraction notation. Basically, when a parameter of
+ SNDRV_PCM_HW_PARAM_RATE was decided as a single value, this value is
+ also calculated according to it. Else, zero. But this behaviour depends
+ on implementations in driver side.
+``fifo_size``
+ Read-only. This value represents the size of FIFO in serial sound
+ interface of hardware. Basically, each driver can assigns a proper
+ value to this parameter but some drivers intentionally set zero with
+ a care of hardware design or data transmission protocol.
+
+ALSA PCM core handles buffer of :c:type:`struct snd_pcm_hw_params` when
+applications execute ioctl(2) with SNDRV_PCM_HW_REFINE or SNDRV_PCM_HW_PARAMS.
+Parameters in the buffer are changed according to
+:c:type:`struct snd_pcm_hardware` and rules of constraints in the runtime. The
+structure describes capabilities of handled hardware. The rules describes
+dependencies on which a parameter is decided according to several parameters.
+A rule has a callback function, and drivers can register arbitrary functions
+to compute the target parameter. ALSA PCM core registers some rules to the
+runtime as a default.
+
+Each driver can join in the interaction as long as it prepared for two stuffs
+in a callback of :c:type:`struct snd_pcm_ops.open`.
+
+1. In the callback, drivers are expected to change a member of
+ :c:type:`struct snd_pcm_hardware` type in the runtime, according to
+ capacities of corresponding hardware.
+2. In the same callback, drivers are also expected to register additional rules
+ of constraints into the runtime when several parameters have dependencies
+ due to hardware design.
+
+The driver can refers to result of the interaction in a callback of
+:c:type:`struct snd_pcm_ops.hw_params`, however it should not change the
+content.
+
+Tracepoints in this category are designed to trace changes of the
+mask/interval parameters. When ALSA PCM core changes them, ``hw_mask_param`` or
+``hw_interval_param`` event is probed according to type of the changed parameter.
+
+ALSA PCM core also has a pretty print format for each of the tracepoints. Below
+is an example for ``hw_mask_param``.
+
+::
+
+ hw_mask_param: pcmC0D0p 001/023 FORMAT 00000000000000000000001000000044 00000000000000000000001000000044
+
+
+Below is an example for ``hw_interval_param``.
+
+::
+
+ hw_interval_param: pcmC0D0p 000/023 BUFFER_SIZE 0 0 [0 4294967295] 0 1 [0 4294967295]
+
+The first three fields are common. They represent name of ALSA PCM character
+device, rules of constraint and name of the changed parameter, in order. The
+field for rules of constraint consists of two sub-fields; index of applied rule
+and total number of rules added to the runtime. As an exception, the index 000
+means that the parameter is changed by ALSA PCM core, regardless of the rules.
+
+The rest of field represent state of the parameter before/after changing. These
+fields are different according to type of the parameter. For parameters of mask
+type, the fields represent hexadecimal dump of content of the parameter. For
+parameters of interval type, the fields represent values of each member of
+``empty``, ``integer``, ``openmin``, ``min``, ``max``, ``openmax`` in
+:c:type:`struct snd_interval` in this order.
+
+Tracepoints in drivers
+======================
+
+Some drivers have tracepoints for developers' convenience. For them, please
+refer to each documentation or implementation.
diff --git a/Documentation/sound/kernel-api/writing-an-alsa-driver.rst b/Documentation/sound/kernel-api/writing-an-alsa-driver.rst
index 95c5443eff38..58ffa3f5bda7 100644
--- a/Documentation/sound/kernel-api/writing-an-alsa-driver.rst
+++ b/Documentation/sound/kernel-api/writing-an-alsa-driver.rst
@@ -2080,8 +2080,8 @@ sleeping poll threads, etc.
This callback is also atomic as default.
-copy and silence callbacks
-~~~~~~~~~~~~~~~~~~~~~~~~~~
+copy_user, copy_kernel and fill_silence ops
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
These callbacks are not mandatory, and can be omitted in most cases.
These callbacks are used when the hardware buffer cannot be in the
@@ -3532,8 +3532,9 @@ external hardware buffer in interrupts (or in tasklets, preferably).
The first case works fine if the external hardware buffer is large
enough. This method doesn't need any extra buffers and thus is more
-effective. You need to define the ``copy`` and ``silence`` callbacks
-for the data transfer. However, there is a drawback: it cannot be
+effective. You need to define the ``copy_user`` and ``copy_kernel``
+callbacks for the data transfer, in addition to ``fill_silence``
+callback for playback. However, there is a drawback: it cannot be
mmapped. The examples are GUS's GF1 PCM or emu8000's wavetable PCM.
The second case allows for mmap on the buffer, although you have to
@@ -3545,30 +3546,34 @@ Another case is when the chip uses a PCI memory-map region for the
buffer instead of the host memory. In this case, mmap is available only
on certain architectures like the Intel one. In non-mmap mode, the data
cannot be transferred as in the normal way. Thus you need to define the
-``copy`` and ``silence`` callbacks as well, as in the cases above. The
-examples are found in ``rme32.c`` and ``rme96.c``.
+``copy_user``, ``copy_kernel`` and ``fill_silence`` callbacks as well,
+as in the cases above. The examples are found in ``rme32.c`` and
+``rme96.c``.
-The implementation of the ``copy`` and ``silence`` callbacks depends
-upon whether the hardware supports interleaved or non-interleaved
-samples. The ``copy`` callback is defined like below, a bit
-differently depending whether the direction is playback or capture:
+The implementation of the ``copy_user``, ``copy_kernel`` and
+``silence`` callbacks depends upon whether the hardware supports
+interleaved or non-interleaved samples. The ``copy_user`` callback is
+defined like below, a bit differently depending whether the direction
+is playback or capture:
::
- static int playback_copy(struct snd_pcm_substream *substream, int channel,
- snd_pcm_uframes_t pos, void *src, snd_pcm_uframes_t count);
- static int capture_copy(struct snd_pcm_substream *substream, int channel,
- snd_pcm_uframes_t pos, void *dst, snd_pcm_uframes_t count);
+ static int playback_copy_user(struct snd_pcm_substream *substream,
+ int channel, unsigned long pos,
+ void __user *src, unsigned long count);
+ static int capture_copy_user(struct snd_pcm_substream *substream,
+ int channel, unsigned long pos,
+ void __user *dst, unsigned long count);
In the case of interleaved samples, the second argument (``channel``) is
not used. The third argument (``pos``) points the current position
-offset in frames.
+offset in bytes.
The meaning of the fourth argument is different between playback and
capture. For playback, it holds the source data pointer, and for
capture, it's the destination data pointer.
-The last argument is the number of frames to be copied.
+The last argument is the number of bytes to be copied.
What you have to do in this callback is again different between playback
and capture directions. In the playback case, you copy the given amount
@@ -3578,8 +3583,7 @@ way, the copy would be like:
::
- my_memcpy(my_buffer + frames_to_bytes(runtime, pos), src,
- frames_to_bytes(runtime, count));
+ my_memcpy_from_user(my_buffer + pos, src, count);
For the capture direction, you copy the given amount of data (``count``)
at the specified offset (``pos``) on the hardware buffer to the
@@ -3587,31 +3591,68 @@ specified pointer (``dst``).
::
- my_memcpy(dst, my_buffer + frames_to_bytes(runtime, pos),
- frames_to_bytes(runtime, count));
+ my_memcpy_to_user(dst, my_buffer + pos, count);
+
+Here the functions are named as ``from_user`` and ``to_user`` because
+it's the user-space buffer that is passed to these callbacks. That
+is, the callback is supposed to copy from/to the user-space data
+directly to/from the hardware buffer.
-Note that both the position and the amount of data are given in frames.
+Careful readers might notice that these callbacks receive the
+arguments in bytes, not in frames like other callbacks. It's because
+it would make coding easier like the examples above, and also it makes
+easier to unify both the interleaved and non-interleaved cases, as
+explained in the following.
In the case of non-interleaved samples, the implementation will be a bit
-more complicated.
+more complicated. The callback is called for each channel, passed by
+the second argument, so totally it's called for N-channels times per
+transfer.
+
+The meaning of other arguments are almost same as the interleaved
+case. The callback is supposed to copy the data from/to the given
+user-space buffer, but only for the given channel. For the detailed
+implementations, please check ``isa/gus/gus_pcm.c`` or
+"pci/rme9652/rme9652.c" as examples.
+
+The above callbacks are the copy from/to the user-space buffer. There
+are some cases where we want copy from/to the kernel-space buffer
+instead. In such a case, ``copy_kernel`` callback is called. It'd
+look like:
+
+::
+
+ static int playback_copy_kernel(struct snd_pcm_substream *substream,
+ int channel, unsigned long pos,
+ void *src, unsigned long count);
+ static int capture_copy_kernel(struct snd_pcm_substream *substream,
+ int channel, unsigned long pos,
+ void *dst, unsigned long count);
+
+As found easily, the only difference is that the buffer pointer is
+without ``__user`` prefix; that is, a kernel-buffer pointer is passed
+in the fourth argument. Correspondingly, the implementation would be
+a version without the user-copy, such as:
-You need to check the channel argument, and if it's -1, copy the whole
-channels. Otherwise, you have to copy only the specified channel. Please
-check ``isa/gus/gus_pcm.c`` as an example.
+::
+
+ my_memcpy(my_buffer + pos, src, count);
-The ``silence`` callback is also implemented in a similar way
+Usually for the playback, another callback ``fill_silence`` is
+defined. It's implemented in a similar way as the copy callbacks
+above:
::
static int silence(struct snd_pcm_substream *substream, int channel,
- snd_pcm_uframes_t pos, snd_pcm_uframes_t count);
+ unsigned long pos, unsigned long count);
-The meanings of arguments are the same as in the ``copy`` callback,
-although there is no ``src/dst`` argument. In the case of interleaved
-samples, the channel argument has no meaning, as well as on ``copy``
-callback.
+The meanings of arguments are the same as in the ``copy_user`` and
+``copy_kernel`` callbacks, although there is no buffer pointer
+argument. In the case of interleaved samples, the channel argument has
+no meaning, as well as on ``copy_*`` callbacks.
-The role of ``silence`` callback is to set the given amount
+The role of ``fill_silence`` callback is to set the given amount
(``count``) of silence data at the specified offset (``pos``) on the
hardware buffer. Suppose that the data format is signed (that is, the
silent-data is 0), and the implementation using a memset-like function
@@ -3619,11 +3660,11 @@ would be like:
::
- my_memcpy(my_buffer + frames_to_bytes(runtime, pos), 0,
- frames_to_bytes(runtime, count));
+ my_memset(my_buffer + pos, 0, count);
In the case of non-interleaved samples, again, the implementation
-becomes a bit more complicated. See, for example, ``isa/gus/gus_pcm.c``.
+becomes a bit more complicated, as it's called N-times per transfer
+for each channel. See, for example, ``isa/gus/gus_pcm.c``.
Non-Contiguous Buffers
----------------------
diff --git a/Documentation/sound/soc/dapm.rst b/Documentation/sound/soc/dapm.rst
index a27f42befa4d..8e44107933ab 100644
--- a/Documentation/sound/soc/dapm.rst
+++ b/Documentation/sound/soc/dapm.rst
@@ -105,6 +105,24 @@ Pre
Special PRE widget (exec before all others)
Post
Special POST widget (exec after all others)
+Buffer
+ Inter widget audio data buffer within a DSP.
+Scheduler
+ DSP internal scheduler that schedules component/pipeline processing
+ work.
+Effect
+ Widget that performs an audio processing effect.
+SRC
+ Sample Rate Converter within DSP or CODEC
+ASRC
+ Asynchronous Sample Rate Converter within DSP or CODEC
+Encoder
+ Widget that encodes audio data from one format (usually PCM) to another
+ usually more compressed format.
+Decoder
+ Widget that decodes audio data from a compressed format to an
+ uncompressed format like PCM.
+
(Widgets are defined in include/sound/soc-dapm.h)
diff --git a/Documentation/sphinx-static/theme_overrides.css b/Documentation/sphinx-static/theme_overrides.css
index d5764a4de5a2..522b6d4c49d4 100644
--- a/Documentation/sphinx-static/theme_overrides.css
+++ b/Documentation/sphinx-static/theme_overrides.css
@@ -4,6 +4,17 @@
*
*/
+/* Interim: Code-blocks with line nos - lines and line numbers don't line up.
+ * see: https://github.com/rtfd/sphinx_rtd_theme/issues/419
+ */
+
+div[class^="highlight"] pre {
+ line-height: normal;
+}
+.rst-content .highlight > pre {
+ line-height: normal;
+}
+
@media screen {
/* content column
@@ -56,6 +67,12 @@
font-family: "Courier New", Courier, monospace
}
+ /* fix bottom margin of lists items */
+
+ .rst-content .section ul li:last-child, .rst-content .section ul li p:last-child {
+ margin-bottom: 12px;
+ }
+
/* inline literal: drop the borderbox, padding and red color */
code, .rst-content tt, .rst-content code {
diff --git a/Documentation/sphinx/convert_template.sed b/Documentation/sphinx/convert_template.sed
deleted file mode 100644
index c1503fcca4ec..000000000000
--- a/Documentation/sphinx/convert_template.sed
+++ /dev/null
@@ -1,18 +0,0 @@
-#
-# Pandoc doesn't grok <function> or <structname>, so convert them
-# ahead of time.
-#
-# Use the following escapes to pass through pandoc:
-# $bq = "`"
-# $lt = "<"
-# $gt = ">"
-#
-s%<function>\([^<(]\+\)()</function>%:c:func:$bq\1()$bq%g
-s%<function>\([^<(]\+\)</function>%:c:func:$bq\1()$bq%g
-s%<structname>struct *\([^<]\+\)</structname>%:c:type:$bqstruct \1 $lt\1$gt$bq%g
-s%struct <structname>\([^<]\+\)</structname>%:c:type:$bqstruct \1 $lt\1$gt$bq%g
-s%<structname>\([^<]\+\)</structname>%:c:type:$bqstruct \1 $lt\1$gt$bq%g
-#
-# Wrap docproc directives in para and code blocks.
-#
-s%^\(!.*\)$%<para><code>DOCPROC: \1</code></para>%
diff --git a/Documentation/sphinx/kerneldoc.py b/Documentation/sphinx/kerneldoc.py
index d15e07f36881..39aa9e8697cc 100644
--- a/Documentation/sphinx/kerneldoc.py
+++ b/Documentation/sphinx/kerneldoc.py
@@ -27,6 +27,7 @@
# Please make sure this works on both python2 and python3.
#
+import codecs
import os
import subprocess
import sys
@@ -88,13 +89,10 @@ class KernelDocDirective(Directive):
try:
env.app.verbose('calling kernel-doc \'%s\'' % (" ".join(cmd)))
- p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)
+ p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = p.communicate()
- # python2 needs conversion to unicode.
- # python3 with universal_newlines=True returns strings.
- if sys.version_info.major < 3:
- out, err = unicode(out, 'utf-8'), unicode(err, 'utf-8')
+ out, err = codecs.decode(out, 'utf-8'), codecs.decode(err, 'utf-8')
if p.returncode != 0:
sys.stderr.write(err)
diff --git a/Documentation/sphinx/post_convert.sed b/Documentation/sphinx/post_convert.sed
deleted file mode 100644
index 392770bac53b..000000000000
--- a/Documentation/sphinx/post_convert.sed
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# Unescape.
-#
-s/$bq/`/g
-s/$lt/</g
-s/$gt/>/g
-#
-# pandoc thinks that both "_" needs to be escaped. Remove the extra
-# backslashes.
-#
-s/\\_/_/g
-#
-# Unwrap docproc directives.
-#
-s/^``DOCPROC: !E\(.*\)``$/.. kernel-doc:: \1\n :export:/
-s/^``DOCPROC: !I\(.*\)``$/.. kernel-doc:: \1\n :internal:/
-s/^``DOCPROC: !F\([^ ]*\) \(.*\)``$/.. kernel-doc:: \1\n :functions: \2/
-s/^``DOCPROC: !P\([^ ]*\) \(.*\)``$/.. kernel-doc:: \1\n :doc: \2/
-s/^``DOCPROC: \(!.*\)``$/.. WARNING: DOCPROC directive not supported: \1/
-#
-# Trim trailing whitespace.
-#
-s/[[:space:]]*$//
diff --git a/Documentation/sphinx/requirements.txt b/Documentation/sphinx/requirements.txt
new file mode 100644
index 000000000000..742be3e12619
--- /dev/null
+++ b/Documentation/sphinx/requirements.txt
@@ -0,0 +1,3 @@
+docutils==0.12
+Sphinx==1.4.9
+sphinx_rtd_theme
diff --git a/Documentation/sphinx/tmplcvt b/Documentation/sphinx/tmplcvt
deleted file mode 100755
index 6848f0a26fa5..000000000000
--- a/Documentation/sphinx/tmplcvt
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/bin/bash
-#
-# Convert a template file into something like RST
-#
-# fix <function>
-# feed to pandoc
-# fix \_
-# title line?
-#
-set -eu
-
-if [ "$#" != "2" ]; then
- echo "$0 <docbook file> <rst file>"
- exit
-fi
-
-DIR=$(dirname $0)
-
-in=$1
-rst=$2
-tmp=$rst.tmp
-
-cp $in $tmp
-sed --in-place -f $DIR/convert_template.sed $tmp
-pandoc -s -S -f docbook -t rst -o $rst $tmp
-sed --in-place -f $DIR/post_convert.sed $rst
-rm $tmp
-echo "book writen to $rst"
diff --git a/Documentation/spi/spi-summary b/Documentation/spi/spi-summary
index d1824b399b2d..1721c1b570c3 100644
--- a/Documentation/spi/spi-summary
+++ b/Documentation/spi/spi-summary
@@ -62,8 +62,8 @@ chips described as using "three wire" signaling: SCK, data, nCSx.
(That data line is sometimes called MOMI or SISO.)
Microcontrollers often support both master and slave sides of the SPI
-protocol. This document (and Linux) currently only supports the master
-side of SPI interactions.
+protocol. This document (and Linux) supports both the master and slave
+sides of SPI interactions.
Who uses it? On what kinds of systems?
@@ -154,9 +154,8 @@ control audio interfaces, present touchscreen sensors as input interfaces,
or monitor temperature and voltage levels during industrial processing.
And those might all be sharing the same controller driver.
-A "struct spi_device" encapsulates the master-side interface between
-those two types of driver. At this writing, Linux has no slave side
-programming interface.
+A "struct spi_device" encapsulates the controller-side interface between
+those two types of drivers.
There is a minimal core of SPI programming interfaces, focussing on
using the driver model to connect controller and protocol drivers using
@@ -177,10 +176,24 @@ shows up in sysfs in several locations:
/sys/bus/spi/drivers/D ... driver for one or more spi*.* devices
/sys/class/spi_master/spiB ... symlink (or actual device node) to
- a logical node which could hold class related state for the
- controller managing bus "B". All spiB.* devices share one
+ a logical node which could hold class related state for the SPI
+ master controller managing bus "B". All spiB.* devices share one
physical SPI bus segment, with SCLK, MOSI, and MISO.
+ /sys/devices/.../CTLR/slave ... virtual file for (un)registering the
+ slave device for an SPI slave controller.
+ Writing the driver name of an SPI slave handler to this file
+ registers the slave device; writing "(null)" unregisters the slave
+ device.
+ Reading from this file shows the name of the slave device ("(null)"
+ if not registered).
+
+ /sys/class/spi_slave/spiB ... symlink (or actual device node) to
+ a logical node which could hold class related state for the SPI
+ slave controller on bus "B". When registered, a single spiB.*
+ device is present here, possible sharing the physical SPI bus
+ segment with other SPI slave devices.
+
Note that the actual location of the controller's class state depends
on whether you enabled CONFIG_SYSFS_DEPRECATED or not. At this time,
the only class-specific state is the bus number ("B" in "spiB"), so
diff --git a/Documentation/static-keys.txt b/Documentation/static-keys.txt
index ef419fd0897f..ab16efe0c79d 100644
--- a/Documentation/static-keys.txt
+++ b/Documentation/static-keys.txt
@@ -1,30 +1,34 @@
- Static Keys
- -----------
+===========
+Static Keys
+===========
-DEPRECATED API:
+.. warning::
-The use of 'struct static_key' directly, is now DEPRECATED. In addition
-static_key_{true,false}() is also DEPRECATED. IE DO NOT use the following:
+ DEPRECATED API:
-struct static_key false = STATIC_KEY_INIT_FALSE;
-struct static_key true = STATIC_KEY_INIT_TRUE;
-static_key_true()
-static_key_false()
+ The use of 'struct static_key' directly, is now DEPRECATED. In addition
+ static_key_{true,false}() is also DEPRECATED. IE DO NOT use the following::
-The updated API replacements are:
+ struct static_key false = STATIC_KEY_INIT_FALSE;
+ struct static_key true = STATIC_KEY_INIT_TRUE;
+ static_key_true()
+ static_key_false()
-DEFINE_STATIC_KEY_TRUE(key);
-DEFINE_STATIC_KEY_FALSE(key);
-DEFINE_STATIC_KEY_ARRAY_TRUE(keys, count);
-DEFINE_STATIC_KEY_ARRAY_FALSE(keys, count);
-static_branch_likely()
-static_branch_unlikely()
+ The updated API replacements are::
-0) Abstract
+ DEFINE_STATIC_KEY_TRUE(key);
+ DEFINE_STATIC_KEY_FALSE(key);
+ DEFINE_STATIC_KEY_ARRAY_TRUE(keys, count);
+ DEFINE_STATIC_KEY_ARRAY_FALSE(keys, count);
+ static_branch_likely()
+ static_branch_unlikely()
+
+Abstract
+========
Static keys allows the inclusion of seldom used features in
performance-sensitive fast-path kernel code, via a GCC feature and a code
-patching technique. A quick example:
+patching technique. A quick example::
DEFINE_STATIC_KEY_FALSE(key);
@@ -45,7 +49,8 @@ The static_branch_unlikely() branch will be generated into the code with as litt
impact to the likely code path as possible.
-1) Motivation
+Motivation
+==========
Currently, tracepoints are implemented using a conditional branch. The
@@ -60,7 +65,8 @@ possible. Although tracepoints are the original motivation for this work, other
kernel code paths should be able to make use of the static keys facility.
-2) Solution
+Solution
+========
gcc (v4.5) adds a new 'asm goto' statement that allows branching to a label:
@@ -71,7 +77,7 @@ Using the 'asm goto', we can create branches that are either taken or not taken
by default, without the need to check memory. Then, at run-time, we can patch
the branch site to change the branch direction.
-For example, if we have a simple branch that is disabled by default:
+For example, if we have a simple branch that is disabled by default::
if (static_branch_unlikely(&key))
printk("I am the true branch\n");
@@ -87,14 +93,15 @@ optimization.
This lowlevel patching mechanism is called 'jump label patching', and it gives
the basis for the static keys facility.
-3) Static key label API, usage and examples:
+Static key label API, usage and examples
+========================================
-In order to make use of this optimization you must first define a key:
+In order to make use of this optimization you must first define a key::
DEFINE_STATIC_KEY_TRUE(key);
-or:
+or::
DEFINE_STATIC_KEY_FALSE(key);
@@ -102,14 +109,14 @@ or:
The key must be global, that is, it can't be allocated on the stack or dynamically
allocated at run-time.
-The key is then used in code as:
+The key is then used in code as::
if (static_branch_unlikely(&key))
do unlikely code
else
do likely code
-Or:
+Or::
if (static_branch_likely(&key))
do likely code
@@ -120,15 +127,15 @@ Keys defined via DEFINE_STATIC_KEY_TRUE(), or DEFINE_STATIC_KEY_FALSE, may
be used in either static_branch_likely() or static_branch_unlikely()
statements.
-Branch(es) can be set true via:
+Branch(es) can be set true via::
-static_branch_enable(&key);
+ static_branch_enable(&key);
-or false via:
+or false via::
-static_branch_disable(&key);
+ static_branch_disable(&key);
-The branch(es) can then be switched via reference counts:
+The branch(es) can then be switched via reference counts::
static_branch_inc(&key);
...
@@ -142,11 +149,31 @@ static_branch_inc(), will change the branch back to true. Likewise, if the
key is initialized false, a 'static_branch_inc()', will change the branch to
true. And then a 'static_branch_dec()', will again make the branch false.
-Where an array of keys is required, it can be defined as:
+The state and the reference count can be retrieved with 'static_key_enabled()'
+and 'static_key_count()'. In general, if you use these functions, they
+should be protected with the same mutex used around the enable/disable
+or increment/decrement function.
+
+Note that switching branches results in some locks being taken,
+particularly the CPU hotplug lock (in order to avoid races against
+CPUs being brought in the kernel whilst the kernel is getting
+patched). Calling the static key API from within a hotplug notifier is
+thus a sure deadlock recipe. In order to still allow use of the
+functionnality, the following functions are provided:
+
+ static_key_enable_cpuslocked()
+ static_key_disable_cpuslocked()
+ static_branch_enable_cpuslocked()
+ static_branch_disable_cpuslocked()
+
+These functions are *not* general purpose, and must only be used when
+you really know that you're in the above context, and no other.
+
+Where an array of keys is required, it can be defined as::
DEFINE_STATIC_KEY_ARRAY_TRUE(keys, count);
-or:
+or::
DEFINE_STATIC_KEY_ARRAY_FALSE(keys, count);
@@ -159,96 +186,98 @@ simply fall back to a traditional, load, test, and jump sequence. Also, the
struct jump_entry table must be at least 4-byte aligned because the
static_key->entry field makes use of the two least significant bits.
-* select HAVE_ARCH_JUMP_LABEL, see: arch/x86/Kconfig
-
-* #define JUMP_LABEL_NOP_SIZE, see: arch/x86/include/asm/jump_label.h
+* ``select HAVE_ARCH_JUMP_LABEL``,
+ see: arch/x86/Kconfig
-* __always_inline bool arch_static_branch(struct static_key *key, bool branch), see:
- arch/x86/include/asm/jump_label.h
+* ``#define JUMP_LABEL_NOP_SIZE``,
+ see: arch/x86/include/asm/jump_label.h
-* __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch),
- see: arch/x86/include/asm/jump_label.h
+* ``__always_inline bool arch_static_branch(struct static_key *key, bool branch)``,
+ see: arch/x86/include/asm/jump_label.h
-* void arch_jump_label_transform(struct jump_entry *entry, enum jump_label_type type),
- see: arch/x86/kernel/jump_label.c
+* ``__always_inline bool arch_static_branch_jump(struct static_key *key, bool branch)``,
+ see: arch/x86/include/asm/jump_label.h
-* __init_or_module void arch_jump_label_transform_static(struct jump_entry *entry, enum jump_label_type type),
- see: arch/x86/kernel/jump_label.c
+* ``void arch_jump_label_transform(struct jump_entry *entry, enum jump_label_type type)``,
+ see: arch/x86/kernel/jump_label.c
+* ``__init_or_module void arch_jump_label_transform_static(struct jump_entry *entry, enum jump_label_type type)``,
+ see: arch/x86/kernel/jump_label.c
-* struct jump_entry, see: arch/x86/include/asm/jump_label.h
+* ``struct jump_entry``,
+ see: arch/x86/include/asm/jump_label.h
5) Static keys / jump label analysis, results (x86_64):
As an example, let's add the following branch to 'getppid()', such that the
-system call now looks like:
+system call now looks like::
-SYSCALL_DEFINE0(getppid)
-{
+ SYSCALL_DEFINE0(getppid)
+ {
int pid;
-+ if (static_branch_unlikely(&key))
-+ printk("I am the true branch\n");
+ + if (static_branch_unlikely(&key))
+ + printk("I am the true branch\n");
rcu_read_lock();
pid = task_tgid_vnr(rcu_dereference(current->real_parent));
rcu_read_unlock();
return pid;
-}
-
-The resulting instructions with jump labels generated by GCC is:
-
-ffffffff81044290 <sys_getppid>:
-ffffffff81044290: 55 push %rbp
-ffffffff81044291: 48 89 e5 mov %rsp,%rbp
-ffffffff81044294: e9 00 00 00 00 jmpq ffffffff81044299 <sys_getppid+0x9>
-ffffffff81044299: 65 48 8b 04 25 c0 b6 mov %gs:0xb6c0,%rax
-ffffffff810442a0: 00 00
-ffffffff810442a2: 48 8b 80 80 02 00 00 mov 0x280(%rax),%rax
-ffffffff810442a9: 48 8b 80 b0 02 00 00 mov 0x2b0(%rax),%rax
-ffffffff810442b0: 48 8b b8 e8 02 00 00 mov 0x2e8(%rax),%rdi
-ffffffff810442b7: e8 f4 d9 00 00 callq ffffffff81051cb0 <pid_vnr>
-ffffffff810442bc: 5d pop %rbp
-ffffffff810442bd: 48 98 cltq
-ffffffff810442bf: c3 retq
-ffffffff810442c0: 48 c7 c7 e3 54 98 81 mov $0xffffffff819854e3,%rdi
-ffffffff810442c7: 31 c0 xor %eax,%eax
-ffffffff810442c9: e8 71 13 6d 00 callq ffffffff8171563f <printk>
-ffffffff810442ce: eb c9 jmp ffffffff81044299 <sys_getppid+0x9>
-
-Without the jump label optimization it looks like:
-
-ffffffff810441f0 <sys_getppid>:
-ffffffff810441f0: 8b 05 8a 52 d8 00 mov 0xd8528a(%rip),%eax # ffffffff81dc9480 <key>
-ffffffff810441f6: 55 push %rbp
-ffffffff810441f7: 48 89 e5 mov %rsp,%rbp
-ffffffff810441fa: 85 c0 test %eax,%eax
-ffffffff810441fc: 75 27 jne ffffffff81044225 <sys_getppid+0x35>
-ffffffff810441fe: 65 48 8b 04 25 c0 b6 mov %gs:0xb6c0,%rax
-ffffffff81044205: 00 00
-ffffffff81044207: 48 8b 80 80 02 00 00 mov 0x280(%rax),%rax
-ffffffff8104420e: 48 8b 80 b0 02 00 00 mov 0x2b0(%rax),%rax
-ffffffff81044215: 48 8b b8 e8 02 00 00 mov 0x2e8(%rax),%rdi
-ffffffff8104421c: e8 2f da 00 00 callq ffffffff81051c50 <pid_vnr>
-ffffffff81044221: 5d pop %rbp
-ffffffff81044222: 48 98 cltq
-ffffffff81044224: c3 retq
-ffffffff81044225: 48 c7 c7 13 53 98 81 mov $0xffffffff81985313,%rdi
-ffffffff8104422c: 31 c0 xor %eax,%eax
-ffffffff8104422e: e8 60 0f 6d 00 callq ffffffff81715193 <printk>
-ffffffff81044233: eb c9 jmp ffffffff810441fe <sys_getppid+0xe>
-ffffffff81044235: 66 66 2e 0f 1f 84 00 data32 nopw %cs:0x0(%rax,%rax,1)
-ffffffff8104423c: 00 00 00 00
+ }
+
+The resulting instructions with jump labels generated by GCC is::
+
+ ffffffff81044290 <sys_getppid>:
+ ffffffff81044290: 55 push %rbp
+ ffffffff81044291: 48 89 e5 mov %rsp,%rbp
+ ffffffff81044294: e9 00 00 00 00 jmpq ffffffff81044299 <sys_getppid+0x9>
+ ffffffff81044299: 65 48 8b 04 25 c0 b6 mov %gs:0xb6c0,%rax
+ ffffffff810442a0: 00 00
+ ffffffff810442a2: 48 8b 80 80 02 00 00 mov 0x280(%rax),%rax
+ ffffffff810442a9: 48 8b 80 b0 02 00 00 mov 0x2b0(%rax),%rax
+ ffffffff810442b0: 48 8b b8 e8 02 00 00 mov 0x2e8(%rax),%rdi
+ ffffffff810442b7: e8 f4 d9 00 00 callq ffffffff81051cb0 <pid_vnr>
+ ffffffff810442bc: 5d pop %rbp
+ ffffffff810442bd: 48 98 cltq
+ ffffffff810442bf: c3 retq
+ ffffffff810442c0: 48 c7 c7 e3 54 98 81 mov $0xffffffff819854e3,%rdi
+ ffffffff810442c7: 31 c0 xor %eax,%eax
+ ffffffff810442c9: e8 71 13 6d 00 callq ffffffff8171563f <printk>
+ ffffffff810442ce: eb c9 jmp ffffffff81044299 <sys_getppid+0x9>
+
+Without the jump label optimization it looks like::
+
+ ffffffff810441f0 <sys_getppid>:
+ ffffffff810441f0: 8b 05 8a 52 d8 00 mov 0xd8528a(%rip),%eax # ffffffff81dc9480 <key>
+ ffffffff810441f6: 55 push %rbp
+ ffffffff810441f7: 48 89 e5 mov %rsp,%rbp
+ ffffffff810441fa: 85 c0 test %eax,%eax
+ ffffffff810441fc: 75 27 jne ffffffff81044225 <sys_getppid+0x35>
+ ffffffff810441fe: 65 48 8b 04 25 c0 b6 mov %gs:0xb6c0,%rax
+ ffffffff81044205: 00 00
+ ffffffff81044207: 48 8b 80 80 02 00 00 mov 0x280(%rax),%rax
+ ffffffff8104420e: 48 8b 80 b0 02 00 00 mov 0x2b0(%rax),%rax
+ ffffffff81044215: 48 8b b8 e8 02 00 00 mov 0x2e8(%rax),%rdi
+ ffffffff8104421c: e8 2f da 00 00 callq ffffffff81051c50 <pid_vnr>
+ ffffffff81044221: 5d pop %rbp
+ ffffffff81044222: 48 98 cltq
+ ffffffff81044224: c3 retq
+ ffffffff81044225: 48 c7 c7 13 53 98 81 mov $0xffffffff81985313,%rdi
+ ffffffff8104422c: 31 c0 xor %eax,%eax
+ ffffffff8104422e: e8 60 0f 6d 00 callq ffffffff81715193 <printk>
+ ffffffff81044233: eb c9 jmp ffffffff810441fe <sys_getppid+0xe>
+ ffffffff81044235: 66 66 2e 0f 1f 84 00 data32 nopw %cs:0x0(%rax,%rax,1)
+ ffffffff8104423c: 00 00 00 00
Thus, the disable jump label case adds a 'mov', 'test' and 'jne' instruction
vs. the jump label case just has a 'no-op' or 'jmp 0'. (The jmp 0, is patched
to a 5 byte atomic no-op instruction at boot-time.) Thus, the disabled jump
-label case adds:
+label case adds::
-6 (mov) + 2 (test) + 2 (jne) = 10 - 5 (5 byte jump 0) = 5 addition bytes.
+ 6 (mov) + 2 (test) + 2 (jne) = 10 - 5 (5 byte jump 0) = 5 addition bytes.
If we then include the padding bytes, the jump label code saves, 16 total bytes
of instruction memory for this small function. In this case the non-jump label
@@ -262,7 +291,7 @@ Since there are a number of static key API uses in the scheduler paths,
'pipe-test' (also known as 'perf bench sched pipe') can be used to show the
performance improvement. Testing done on 3.3.0-rc2:
-jump label disabled:
+jump label disabled::
Performance counter stats for 'bash -c /tmp/pipe-test' (50 runs):
@@ -279,7 +308,7 @@ jump label disabled:
1.601607384 seconds time elapsed ( +- 0.07% )
-jump label enabled:
+jump label enabled::
Performance counter stats for 'bash -c /tmp/pipe-test' (50 runs):
diff --git a/Documentation/svga.txt b/Documentation/svga.txt
index cd66ec836e4f..119f1515b1ac 100644
--- a/Documentation/svga.txt
+++ b/Documentation/svga.txt
@@ -1,24 +1,31 @@
- Video Mode Selection Support 2.13
- (c) 1995--1999 Martin Mares, <mj@ucw.cz>
---------------------------------------------------------------------------------
+.. include:: <isonum.txt>
-1. Intro
-~~~~~~~~
- This small document describes the "Video Mode Selection" feature which
+=================================
+Video Mode Selection Support 2.13
+=================================
+
+:Copyright: |copy| 1995--1999 Martin Mares, <mj@ucw.cz>
+
+Intro
+~~~~~
+
+This small document describes the "Video Mode Selection" feature which
allows the use of various special video modes supported by the video BIOS. Due
to usage of the BIOS, the selection is limited to boot time (before the
kernel decompression starts) and works only on 80X86 machines.
- ** Short intro for the impatient: Just use vga=ask for the first time,
- ** enter `scan' on the video mode prompt, pick the mode you want to use,
- ** remember its mode ID (the four-digit hexadecimal number) and then
- ** set the vga parameter to this number (converted to decimal first).
+.. note::
- The video mode to be used is selected by a kernel parameter which can be
+ Short intro for the impatient: Just use vga=ask for the first time,
+ enter ``scan`` on the video mode prompt, pick the mode you want to use,
+ remember its mode ID (the four-digit hexadecimal number) and then
+ set the vga parameter to this number (converted to decimal first).
+
+The video mode to be used is selected by a kernel parameter which can be
specified in the kernel Makefile (the SVGA_MODE=... line) or by the "vga=..."
option of LILO (or some other boot loader you use) or by the "vidmode" utility
(present in standard Linux utility packages). You can use the following values
-of this parameter:
+of this parameter::
NORMAL_VGA - Standard 80x25 mode available on all display adapters.
@@ -37,77 +44,79 @@ of this parameter:
for exact meaning of the ID). Warning: rdev and LILO don't support
hexadecimal numbers -- you have to convert it to decimal manually.
-2. Menu
-~~~~~~~
- The ASK_VGA mode causes the kernel to offer a video mode menu upon
+Menu
+~~~~
+
+The ASK_VGA mode causes the kernel to offer a video mode menu upon
bootup. It displays a "Press <RETURN> to see video modes available, <SPACE>
to continue or wait 30 secs" message. If you press <RETURN>, you enter the
menu, if you press <SPACE> or wait 30 seconds, the kernel will boot up in
the standard 80x25 mode.
- The menu looks like:
+The menu looks like::
-Video adapter: <name-of-detected-video-adapter>
-Mode: COLSxROWS:
-0 0F00 80x25
-1 0F01 80x50
-2 0F02 80x43
-3 0F03 80x26
-....
-Enter mode number or `scan': <flashing-cursor-here>
+ Video adapter: <name-of-detected-video-adapter>
+ Mode: COLSxROWS:
+ 0 0F00 80x25
+ 1 0F01 80x50
+ 2 0F02 80x43
+ 3 0F03 80x26
+ ....
+ Enter mode number or ``scan``: <flashing-cursor-here>
- <name-of-detected-video-adapter> tells what video adapter did Linux detect
+<name-of-detected-video-adapter> tells what video adapter did Linux detect
-- it's either a generic adapter name (MDA, CGA, HGC, EGA, VGA, VESA VGA [a VGA
with VESA-compliant BIOS]) or a chipset name (e.g., Trident). Direct detection
of chipsets is turned off by default (see CONFIG_VIDEO_SVGA in chapter 4 to see
how to enable it if you really want) as it's inherently unreliable due to
absolutely insane PC design.
- "0 0F00 80x25" means that the first menu item (the menu items are numbered
+"0 0F00 80x25" means that the first menu item (the menu items are numbered
from "0" to "9" and from "a" to "z") is a 80x25 mode with ID=0x0f00 (see the
next section for a description of mode IDs).
- <flashing-cursor-here> encourages you to enter the item number or mode ID
+<flashing-cursor-here> encourages you to enter the item number or mode ID
you wish to set and press <RETURN>. If the computer complains something about
"Unknown mode ID", it is trying to tell you that it isn't possible to set such
a mode. It's also possible to press only <RETURN> which leaves the current mode.
- The mode list usually contains a few basic modes and some VESA modes. In
+The mode list usually contains a few basic modes and some VESA modes. In
case your chipset has been detected, some chipset-specific modes are shown as
well (some of these might be missing or unusable on your machine as different
BIOSes are often shipped with the same card and the mode numbers depend purely
on the VGA BIOS).
- The modes displayed on the menu are partially sorted: The list starts with
+The modes displayed on the menu are partially sorted: The list starts with
the standard modes (80x25 and 80x50) followed by "special" modes (80x28 and
80x43), local modes (if the local modes feature is enabled), VESA modes and
finally SVGA modes for the auto-detected adapter.
- If you are not happy with the mode list offered (e.g., if you think your card
+If you are not happy with the mode list offered (e.g., if you think your card
is able to do more), you can enter "scan" instead of item number / mode ID. The
program will try to ask the BIOS for all possible video mode numbers and test
what happens then. The screen will be probably flashing wildly for some time and
strange noises will be heard from inside the monitor and so on and then, really
all consistent video modes supported by your BIOS will appear (plus maybe some
-`ghost modes'). If you are afraid this could damage your monitor, don't use this
-function.
+``ghost modes``). If you are afraid this could damage your monitor, don't use
+this function.
- After scanning, the mode ordering is a bit different: the auto-detected SVGA
-modes are not listed at all and the modes revealed by `scan' are shown before
+After scanning, the mode ordering is a bit different: the auto-detected SVGA
+modes are not listed at all and the modes revealed by ``scan`` are shown before
all VESA modes.
-3. Mode IDs
-~~~~~~~~~~~
- Because of the complexity of all the video stuff, the video mode IDs
+Mode IDs
+~~~~~~~~
+
+Because of the complexity of all the video stuff, the video mode IDs
used here are also a bit complex. A video mode ID is a 16-bit number usually
expressed in a hexadecimal notation (starting with "0x"). You can set a mode
by entering its mode directly if you know it even if it isn't shown on the menu.
-The ID numbers can be divided to three regions:
+The ID numbers can be divided to those regions::
0x0000 to 0x00ff - menu item references. 0x0000 is the first item. Don't use
outside the menu as this can change from boot to boot (especially if you
- have used the `scan' feature).
+ have used the ``scan`` feature).
0x0100 to 0x017f - standard BIOS modes. The ID is a BIOS video mode number
(as presented to INT 10, function 00) increased by 0x0100.
@@ -142,53 +151,54 @@ The ID numbers can be divided to three regions:
0xffff equivalent to 0x0f00 (standard 80x25)
0xfffe equivalent to 0x0f01 (EGA 80x43 or VGA 80x50)
- If you add 0x8000 to the mode ID, the program will try to recalculate
+If you add 0x8000 to the mode ID, the program will try to recalculate
vertical display timing according to mode parameters, which can be used to
eliminate some annoying bugs of certain VGA BIOSes (usually those used for
cards with S3 chipsets and old Cirrus Logic BIOSes) -- mainly extra lines at the
end of the display.
-4. Options
-~~~~~~~~~~
- Some options can be set in the source text (in arch/i386/boot/video.S).
+Options
+~~~~~~~
+
+Some options can be set in the source text (in arch/i386/boot/video.S).
All of them are simple #define's -- change them to #undef's when you want to
switch them off. Currently supported:
- CONFIG_VIDEO_SVGA - enables autodetection of SVGA cards. This is switched
+CONFIG_VIDEO_SVGA - enables autodetection of SVGA cards. This is switched
off by default as it's a bit unreliable due to terribly bad PC design. If you
-really want to have the adapter autodetected (maybe in case the `scan' feature
+really want to have the adapter autodetected (maybe in case the ``scan`` feature
doesn't work on your machine), switch this on and don't cry if the results
are not completely sane. In case you really need this feature, please drop me
a mail as I think of removing it some day.
- CONFIG_VIDEO_VESA - enables autodetection of VESA modes. If it doesn't work
+CONFIG_VIDEO_VESA - enables autodetection of VESA modes. If it doesn't work
on your machine (or displays a "Error: Scanning of VESA modes failed" message),
you can switch it off and report as a bug.
- CONFIG_VIDEO_COMPACT - enables compacting of the video mode list. If there
+CONFIG_VIDEO_COMPACT - enables compacting of the video mode list. If there
are more modes with the same screen size, only the first one is kept (see above
for more info on mode ordering). However, in very strange cases it's possible
that the first "version" of the mode doesn't work although some of the others
do -- in this case turn this switch off to see the rest.
- CONFIG_VIDEO_RETAIN - enables retaining of screen contents when switching
+CONFIG_VIDEO_RETAIN - enables retaining of screen contents when switching
video modes. Works only with some boot loaders which leave enough room for the
buffer. (If you have old LILO, you can adjust heap_end_ptr and loadflags
in setup.S, but it's better to upgrade the boot loader...)
- CONFIG_VIDEO_LOCAL - enables inclusion of "local modes" in the list. The
+CONFIG_VIDEO_LOCAL - enables inclusion of "local modes" in the list. The
local modes are added automatically to the beginning of the list not depending
on hardware configuration. The local modes are listed in the source text after
the "local_mode_table:" line. The comment before this line describes the format
of the table (which also includes a video card name to be displayed on the
top of the menu).
- CONFIG_VIDEO_400_HACK - force setting of 400 scan lines for standard VGA
+CONFIG_VIDEO_400_HACK - force setting of 400 scan lines for standard VGA
modes. This option is intended to be used on certain buggy BIOSes which draw
some useless logo using font download and then fail to reset the correct mode.
Don't use unless needed as it forces resetting the video card.
- CONFIG_VIDEO_GFX_HACK - includes special hack for setting of graphics modes
+CONFIG_VIDEO_GFX_HACK - includes special hack for setting of graphics modes
to be used later by special drivers (e.g., 800x600 on IBM ThinkPad -- see
ftp://ftp.phys.keio.ac.jp/pub/XFree86/800x600/XF86Configs/XF86Config.IBM_TP560).
Allows to set _any_ BIOS mode including graphic ones and forcing specific
@@ -196,33 +206,36 @@ text screen resolution instead of peeking it from BIOS variables. Don't use
unless you think you know what you're doing. To activate this setup, use
mode number 0x0f08 (see section 3).
-5. Still doesn't work?
-~~~~~~~~~~~~~~~~~~~~~~
- When the mode detection doesn't work (e.g., the mode list is incorrect or
+Still doesn't work?
+~~~~~~~~~~~~~~~~~~~
+
+When the mode detection doesn't work (e.g., the mode list is incorrect or
the machine hangs instead of displaying the menu), try to switch off some of
the configuration options listed in section 4. If it fails, you can still use
your kernel with the video mode set directly via the kernel parameter.
- In either case, please send me a bug report containing what _exactly_
+In either case, please send me a bug report containing what _exactly_
happens and how do the configuration switches affect the behaviour of the bug.
- If you start Linux from M$-DOS, you might also use some DOS tools for
+If you start Linux from M$-DOS, you might also use some DOS tools for
video mode setting. In this case, you must specify the 0x0f04 mode ("leave
current settings") to Linux, because if you don't and you use any non-standard
mode, Linux will switch to 80x25 automatically.
- If you set some extended mode and there's one or more extra lines on the
+If you set some extended mode and there's one or more extra lines on the
bottom of the display containing already scrolled-out text, your VGA BIOS
contains the most common video BIOS bug called "incorrect vertical display
end setting". Adding 0x8000 to the mode ID might fix the problem. Unfortunately,
this must be done manually -- no autodetection mechanisms are available.
- If you have a VGA card and your display still looks as on EGA, your BIOS
+If you have a VGA card and your display still looks as on EGA, your BIOS
is probably broken and you need to set the CONFIG_VIDEO_400_HACK switch to
force setting of the correct mode.
-6. History
-~~~~~~~~~~
+History
+~~~~~~~
+
+=============== ================================================================
1.0 (??-Nov-95) First version supporting all adapters supported by the old
setup.S + Cirrus Logic 54XX. Present in some 1.3.4? kernels
and then removed due to instability on some machines.
@@ -260,17 +273,18 @@ force setting of the correct mode.
original version written by hhanemaa@cs.ruu.nl, patched by
Jeff Chua, rewritten by me).
- Screen store/restore fixed.
-2.8 (14-Apr-96) - Previous release was not compilable without CONFIG_VIDEO_SVGA.
+2.8 (14-Apr-96) - Previous release was not compilable without CONFIG_VIDEO_SVGA.
- Better recognition of text modes during mode scan.
2.9 (12-May-96) - Ignored VESA modes 0x80 - 0xff (more VESA BIOS bugs!)
-2.10 (11-Nov-96)- The whole thing made optional.
+2.10(11-Nov-96) - The whole thing made optional.
- Added the CONFIG_VIDEO_400_HACK switch.
- Added the CONFIG_VIDEO_GFX_HACK switch.
- Code cleanup.
-2.11 (03-May-97)- Yet another cleanup, now including also the documentation.
- - Direct testing of SVGA adapters turned off by default, `scan'
+2.11(03-May-97) - Yet another cleanup, now including also the documentation.
+ - Direct testing of SVGA adapters turned off by default, ``scan``
offered explicitly on the prompt line.
- Removed the doc section describing adding of new probing
functions as I try to get rid of _all_ hardware probing here.
-2.12 (25-May-98)- Added support for VESA frame buffer graphics.
-2.13 (14-May-99)- Minor documentation fixes.
+2.12(25-May-98) Added support for VESA frame buffer graphics.
+2.13(14-May-99) Minor documentation fixes.
+=============== ================================================================
diff --git a/Documentation/sync_file.txt b/Documentation/sync_file.txt
index c3d033a06e8d..496fb2c3b3e6 100644
--- a/Documentation/sync_file.txt
+++ b/Documentation/sync_file.txt
@@ -1,8 +1,8 @@
- Sync File API Guide
- ~~~~~~~~~~~~~~~~~~~
+===================
+Sync File API Guide
+===================
- Gustavo Padovan
- <gustavo at padovan dot org>
+:Author: Gustavo Padovan <gustavo at padovan dot org>
This document serves as a guide for device drivers writers on what the
sync_file API is, and how drivers can support it. Sync file is the carrier of
@@ -46,16 +46,17 @@ Creating Sync Files
When a driver needs to send an out-fence userspace it creates a sync_file.
-Interface:
+Interface::
+
struct sync_file *sync_file_create(struct dma_fence *fence);
The caller pass the out-fence and gets back the sync_file. That is just the
first step, next it needs to install an fd on sync_file->file. So it gets an
-fd:
+fd::
fd = get_unused_fd_flags(O_CLOEXEC);
-and installs it on sync_file->file:
+and installs it on sync_file->file::
fd_install(fd, sync_file->file);
@@ -71,7 +72,8 @@ When userspace needs to send an in-fence to the driver it passes file descriptor
of the Sync File to the kernel. The kernel can then retrieve the fences
from it.
-Interface:
+Interface::
+
struct dma_fence *sync_file_get_fence(int fd);
@@ -79,5 +81,6 @@ The returned reference is owned by the caller and must be disposed of
afterwards using dma_fence_put(). In case of error, a NULL is returned instead.
References:
-[1] struct sync_file in include/linux/sync_file.h
-[2] All interfaces mentioned above defined in include/linux/sync_file.h
+
+1. struct sync_file in include/linux/sync_file.h
+2. All interfaces mentioned above defined in include/linux/sync_file.h
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index bac23c198360..694968c7523c 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -61,6 +61,7 @@ show up in /proc/sys/kernel:
- perf_cpu_time_max_percent
- perf_event_paranoid
- perf_event_max_stack
+- perf_event_mlock_kb
- perf_event_max_contexts_per_stack
- pid_max
- powersave-nap [ PPC only ]
@@ -74,6 +75,7 @@ show up in /proc/sys/kernel:
- reboot-cmd [ SPARC only ]
- rtsig-max
- rtsig-nr
+- seccomp/ ==> Documentation/userspace-api/seccomp_filter.rst
- sem
- sem_next_id [ sysv ipc ]
- sg-big-buff [ generic SCSI device (sg) ]
@@ -654,7 +656,9 @@ Controls use of the performance events system by unprivileged
users (without CAP_SYS_ADMIN). The default value is 2.
-1: Allow use of (almost) all events by all users
->=0: Disallow raw tracepoint access by users without CAP_IOC_LOCK
+ Ignore mlock limit after perf_event_mlock_kb without CAP_IPC_LOCK
+>=0: Disallow ftrace function tracepoint by users without CAP_SYS_ADMIN
+ Disallow raw tracepoint access by users without CAP_SYS_ADMIN
>=1: Disallow CPU event access by users without CAP_SYS_ADMIN
>=2: Disallow kernel profiling by users without CAP_SYS_ADMIN
@@ -673,6 +677,14 @@ The default value is 127.
==============================================================
+perf_event_mlock_kb:
+
+Control size of per-cpu ring buffer not counted agains mlock limit.
+
+The default value is 512 + 1 page
+
+==============================================================
+
perf_event_max_contexts_per_stack:
Controls maximum number of stack frame context entries for
diff --git a/Documentation/sysctl/net.txt b/Documentation/sysctl/net.txt
index 14db18c970b1..b67044a2575f 100644
--- a/Documentation/sysctl/net.txt
+++ b/Documentation/sysctl/net.txt
@@ -35,9 +35,34 @@ Table : Subdirectories in /proc/sys/net
bpf_jit_enable
--------------
-This enables Berkeley Packet Filter Just in Time compiler.
-Currently supported on x86_64 architecture, bpf_jit provides a framework
-to speed packet filtering, the one used by tcpdump/libpcap for example.
+This enables the BPF Just in Time (JIT) compiler. BPF is a flexible
+and efficient infrastructure allowing to execute bytecode at various
+hook points. It is used in a number of Linux kernel subsystems such
+as networking (e.g. XDP, tc), tracing (e.g. kprobes, uprobes, tracepoints)
+and security (e.g. seccomp). LLVM has a BPF back end that can compile
+restricted C into a sequence of BPF instructions. After program load
+through bpf(2) and passing a verifier in the kernel, a JIT will then
+translate these BPF proglets into native CPU instructions. There are
+two flavors of JITs, the newer eBPF JIT currently supported on:
+ - x86_64
+ - arm64
+ - arm32
+ - ppc64
+ - sparc64
+ - mips64
+ - s390x
+
+And the older cBPF JIT supported on the following archs:
+ - mips
+ - ppc
+ - sparc
+
+eBPF JITs are a superset of cBPF JITs, meaning the kernel will
+migrate cBPF instructions into eBPF instructions and then JIT
+compile them transparently. Older cBPF JITs can only translate
+tcpdump filters, seccomp rules, etc, but not mentioned eBPF
+programs loaded through bpf(2).
+
Values :
0 - disable the JIT (default value)
1 - enable the JIT
@@ -46,9 +71,9 @@ Values :
bpf_jit_harden
--------------
-This enables hardening for the Berkeley Packet Filter Just in Time compiler.
-Supported are eBPF JIT backends. Enabling hardening trades off performance,
-but can mitigate JIT spraying.
+This enables hardening for the BPF JIT compiler. Supported are eBPF
+JIT backends. Enabling hardening trades off performance, but can
+mitigate JIT spraying.
Values :
0 - disable JIT hardening (default value)
1 - enable JIT hardening for unprivileged users only
@@ -57,11 +82,11 @@ Values :
bpf_jit_kallsyms
----------------
-When Berkeley Packet Filter Just in Time compiler is enabled, then compiled
-images are unknown addresses to the kernel, meaning they neither show up in
-traces nor in /proc/kallsyms. This enables export of these addresses, which
-can be used for debugging/tracing. If bpf_jit_harden is enabled, this feature
-is disabled.
+When BPF JIT compiler is enabled, then compiled images are unknown
+addresses to the kernel, meaning they neither show up in traces nor
+in /proc/kallsyms. This enables export of these addresses, which can
+be used for debugging/tracing. If bpf_jit_harden is enabled, this
+feature is disabled.
Values :
0 - disable JIT kallsyms export (default value)
1 - enable JIT kallsyms export for privileged users only
diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt
index b4ad97f10b8e..9baf66a9ef4e 100644
--- a/Documentation/sysctl/vm.txt
+++ b/Documentation/sysctl/vm.txt
@@ -240,6 +240,26 @@ fragmentation index is <= extfrag_threshold. The default value is 500.
==============================================================
+highmem_is_dirtyable
+
+Available only for systems with CONFIG_HIGHMEM enabled (32b systems).
+
+This parameter controls whether the high memory is considered for dirty
+writers throttling. This is not the case by default which means that
+only the amount of memory directly visible/usable by the kernel can
+be dirtied. As a result, on systems with a large amount of memory and
+lowmem basically depleted writers might be throttled too early and
+streaming writes can get very slow.
+
+Changing the value to non zero would allow more memory to be dirtied
+and thus allow writers to write more data which can be flushed to the
+storage more effectively. Note this also comes with a risk of pre-mature
+OOM killer because some writers (e.g. direct block device writes) can
+only use the low memory and they can fill it up with dirty data without
+any throttling.
+
+==============================================================
+
hugepages_treat_as_movable
This parameter controls whether we can allocate hugepages from ZONE_MOVABLE
@@ -552,7 +572,9 @@ See Documentation/nommu-mmap.txt for more information.
numa_zonelist_order
-This sysctl is only for NUMA.
+This sysctl is only for NUMA and it is deprecated. Anything but
+Node order will fail!
+
'where the memory is allocated from' is controlled by zonelists.
(This documentation ignores ZONE_HIGHMEM/ZONE_DMA32 for simple explanation.
you may be able to read ZONE_DMA as ZONE_DMA32...)
diff --git a/Documentation/tee.txt b/Documentation/tee.txt
index 718599357596..56ea85ffebf2 100644
--- a/Documentation/tee.txt
+++ b/Documentation/tee.txt
@@ -1,4 +1,7 @@
+=============
TEE subsystem
+=============
+
This document describes the TEE subsystem in Linux.
A TEE (Trusted Execution Environment) is a trusted OS running in some
@@ -80,27 +83,27 @@ The GlobalPlatform TEE Client API [5] is implemented on top of the generic
TEE API.
Picture of the relationship between the different components in the
-OP-TEE architecture.
-
- User space Kernel Secure world
- ~~~~~~~~~~ ~~~~~~ ~~~~~~~~~~~~
- +--------+ +-------------+
- | Client | | Trusted |
- +--------+ | Application |
- /\ +-------------+
- || +----------+ /\
- || |tee- | ||
- || |supplicant| \/
- || +----------+ +-------------+
- \/ /\ | TEE Internal|
- +-------+ || | API |
- + TEE | || +--------+--------+ +-------------+
- | Client| || | TEE | OP-TEE | | OP-TEE |
- | API | \/ | subsys | driver | | Trusted OS |
- +-------+----------------+----+-------+----+-----------+-------------+
- | Generic TEE API | | OP-TEE MSG |
- | IOCTL (TEE_IOC_*) | | SMCCC (OPTEE_SMC_CALL_*) |
- +-----------------------------+ +------------------------------+
+OP-TEE architecture::
+
+ User space Kernel Secure world
+ ~~~~~~~~~~ ~~~~~~ ~~~~~~~~~~~~
+ +--------+ +-------------+
+ | Client | | Trusted |
+ +--------+ | Application |
+ /\ +-------------+
+ || +----------+ /\
+ || |tee- | ||
+ || |supplicant| \/
+ || +----------+ +-------------+
+ \/ /\ | TEE Internal|
+ +-------+ || | API |
+ + TEE | || +--------+--------+ +-------------+
+ | Client| || | TEE | OP-TEE | | OP-TEE |
+ | API | \/ | subsys | driver | | Trusted OS |
+ +-------+----------------+----+-------+----+-----------+-------------+
+ | Generic TEE API | | OP-TEE MSG |
+ | IOCTL (TEE_IOC_*) | | SMCCC (OPTEE_SMC_CALL_*) |
+ +-----------------------------+ +------------------------------+
RPC (Remote Procedure Call) are requests from secure world to kernel driver
or tee-supplicant. An RPC is identified by a special range of SMCCC return
@@ -109,10 +112,16 @@ kernel are handled by the kernel driver. Other RPC messages will be forwarded to
tee-supplicant without further involvement of the driver, except switching
shared memory buffer representation.
-References:
+References
+==========
+
[1] https://github.com/OP-TEE/optee_os
+
[2] http://infocenter.arm.com/help/topic/com.arm.doc.den0028a/index.html
+
[3] drivers/tee/optee/optee_smc.h
+
[4] drivers/tee/optee/optee_msg.h
+
[5] http://www.globalplatform.org/specificationsdevice.asp look for
"TEE Client API Specification v1.0" and click download.
diff --git a/Documentation/this_cpu_ops.txt b/Documentation/this_cpu_ops.txt
index 2cbf71975381..5cb8b883ae83 100644
--- a/Documentation/this_cpu_ops.txt
+++ b/Documentation/this_cpu_ops.txt
@@ -1,5 +1,9 @@
+===================
this_cpu operations
--------------------
+===================
+
+:Author: Christoph Lameter, August 4th, 2014
+:Author: Pranith Kumar, Aug 2nd, 2014
this_cpu operations are a way of optimizing access to per cpu
variables associated with the *currently* executing processor. This is
@@ -39,7 +43,7 @@ operations.
The following this_cpu() operations with implied preemption protection
are defined. These operations can be used without worrying about
-preemption and interrupts.
+preemption and interrupts::
this_cpu_read(pcp)
this_cpu_write(pcp, val)
@@ -67,14 +71,14 @@ to relocate a per cpu relative address to the proper per cpu area for
the processor. So the relocation to the per cpu base is encoded in the
instruction via a segment register prefix.
-For example:
+For example::
DEFINE_PER_CPU(int, x);
int z;
z = this_cpu_read(x);
-results in a single instruction
+results in a single instruction::
mov ax, gs:[x]
@@ -84,16 +88,16 @@ this_cpu_ops such sequence also required preempt disable/enable to
prevent the kernel from moving the thread to a different processor
while the calculation is performed.
-Consider the following this_cpu operation:
+Consider the following this_cpu operation::
this_cpu_inc(x)
-The above results in the following single instruction (no lock prefix!)
+The above results in the following single instruction (no lock prefix!)::
inc gs:[x]
instead of the following operations required if there is no segment
-register:
+register::
int *y;
int cpu;
@@ -121,8 +125,10 @@ has to be paid for this optimization is the need to add up the per cpu
counters when the value of a counter is needed.
-Special operations:
--------------------
+Special operations
+------------------
+
+::
y = this_cpu_ptr(&x)
@@ -153,11 +159,15 @@ Therefore the use of x or &x outside of the context of per cpu
operations is invalid and will generally be treated like a NULL
pointer dereference.
+::
+
DEFINE_PER_CPU(int, x);
In the context of per cpu operations the above implies that x is a per
cpu variable. Most this_cpu operations take a cpu variable.
+::
+
int __percpu *p = &x;
&x and hence p is the *offset* of a per cpu variable. this_cpu_ptr()
@@ -168,7 +178,7 @@ strange.
Operations on a field of a per cpu structure
--------------------------------------------
-Let's say we have a percpu structure
+Let's say we have a percpu structure::
struct s {
int n,m;
@@ -177,14 +187,14 @@ Let's say we have a percpu structure
DEFINE_PER_CPU(struct s, p);
-Operations on these fields are straightforward
+Operations on these fields are straightforward::
this_cpu_inc(p.m)
z = this_cpu_cmpxchg(p.m, 0, 1);
-If we have an offset to struct s:
+If we have an offset to struct s::
struct s __percpu *ps = &p;
@@ -194,7 +204,7 @@ If we have an offset to struct s:
The calculation of the pointer may require the use of this_cpu_ptr()
-if we do not make use of this_cpu ops later to manipulate fields:
+if we do not make use of this_cpu ops later to manipulate fields::
struct s *pp;
@@ -206,7 +216,7 @@ if we do not make use of this_cpu ops later to manipulate fields:
Variants of this_cpu ops
--------------------------
+------------------------
this_cpu ops are interrupt safe. Some architectures do not support
these per cpu local operations. In that case the operation must be
@@ -222,7 +232,7 @@ preemption. If a per cpu variable is not used in an interrupt context
and the scheduler cannot preempt, then they are safe. If any interrupts
still occur while an operation is in progress and if the interrupt too
modifies the variable, then RMW actions can not be guaranteed to be
-safe.
+safe::
__this_cpu_read(pcp)
__this_cpu_write(pcp, val)
@@ -279,7 +289,7 @@ unless absolutely necessary. Please consider using an IPI to wake up
the remote CPU and perform the update to its per cpu area.
To access per-cpu data structure remotely, typically the per_cpu_ptr()
-function is used:
+function is used::
DEFINE_PER_CPU(struct data, datap);
@@ -289,7 +299,7 @@ function is used:
This makes it explicit that we are getting ready to access a percpu
area remotely.
-You can also do the following to convert the datap offset to an address
+You can also do the following to convert the datap offset to an address::
struct data *p = this_cpu_ptr(&datap);
@@ -305,7 +315,7 @@ the following scenario that occurs because two per cpu variables
share a cache-line but the relaxed synchronization is applied to
only one process updating the cache-line.
-Consider the following example
+Consider the following example::
struct test {
@@ -327,6 +337,3 @@ mind that a remote write will evict the cache line from the processor
that most likely will access it. If the processor wakes up and finds a
missing local cache line of a per cpu area, its performance and hence
the wake up times will be affected.
-
-Christoph Lameter, August 4th, 2014
-Pranith Kumar, Aug 2nd, 2014
diff --git a/Documentation/timers/NO_HZ.txt b/Documentation/timers/NO_HZ.txt
index 6eaf576294f3..2dcaf9adb7a7 100644
--- a/Documentation/timers/NO_HZ.txt
+++ b/Documentation/timers/NO_HZ.txt
@@ -194,32 +194,9 @@ that the RCU callbacks are processed in a timely fashion.
Another approach is to offload RCU callback processing to "rcuo" kthreads
using the CONFIG_RCU_NOCB_CPU=y Kconfig option. The specific CPUs to
-offload may be selected via several methods:
-
-1. One of three mutually exclusive Kconfig options specify a
- build-time default for the CPUs to offload:
-
- a. The CONFIG_RCU_NOCB_CPU_NONE=y Kconfig option results in
- no CPUs being offloaded.
-
- b. The CONFIG_RCU_NOCB_CPU_ZERO=y Kconfig option causes
- CPU 0 to be offloaded.
-
- c. The CONFIG_RCU_NOCB_CPU_ALL=y Kconfig option causes all
- CPUs to be offloaded. Note that the callbacks will be
- offloaded to "rcuo" kthreads, and that those kthreads
- will in fact run on some CPU. However, this approach
- gives fine-grained control on exactly which CPUs the
- callbacks run on, along with their scheduling priority
- (including the default of SCHED_OTHER), and it further
- allows this control to be varied dynamically at runtime.
-
-2. The "rcu_nocbs=" kernel boot parameter, which takes a comma-separated
- list of CPUs and CPU ranges, for example, "1,3-5" selects CPUs 1,
- 3, 4, and 5. The specified CPUs will be offloaded in addition to
- any CPUs specified as offloaded by CONFIG_RCU_NOCB_CPU_ZERO=y or
- CONFIG_RCU_NOCB_CPU_ALL=y. This means that the "rcu_nocbs=" boot
- parameter has no effect for kernels built with RCU_NOCB_CPU_ALL=y.
+offload may be selected using The "rcu_nocbs=" kernel boot parameter,
+which takes a comma-separated list of CPUs and CPU ranges, for example,
+"1,3-5" selects CPUs 1, 3, 4, and 5.
The offloaded CPUs will never queue RCU callbacks, and therefore RCU
never prevents offloaded CPUs from entering either dyntick-idle mode
diff --git a/Documentation/trace/coresight-cpu-debug.txt b/Documentation/trace/coresight-cpu-debug.txt
new file mode 100644
index 000000000000..b3da1f90b861
--- /dev/null
+++ b/Documentation/trace/coresight-cpu-debug.txt
@@ -0,0 +1,175 @@
+ Coresight CPU Debug Module
+ ==========================
+
+ Author: Leo Yan <leo.yan@linaro.org>
+ Date: April 5th, 2017
+
+Introduction
+------------
+
+Coresight CPU debug module is defined in ARMv8-a architecture reference manual
+(ARM DDI 0487A.k) Chapter 'Part H: External debug', the CPU can integrate
+debug module and it is mainly used for two modes: self-hosted debug and
+external debug. Usually the external debug mode is well known as the external
+debugger connects with SoC from JTAG port; on the other hand the program can
+explore debugging method which rely on self-hosted debug mode, this document
+is to focus on this part.
+
+The debug module provides sample-based profiling extension, which can be used
+to sample CPU program counter, secure state and exception level, etc; usually
+every CPU has one dedicated debug module to be connected. Based on self-hosted
+debug mechanism, Linux kernel can access these related registers from mmio
+region when the kernel panic happens. The callback notifier for kernel panic
+will dump related registers for every CPU; finally this is good for assistant
+analysis for panic.
+
+
+Implementation
+--------------
+
+- During driver registration, it uses EDDEVID and EDDEVID1 - two device ID
+ registers to decide if sample-based profiling is implemented or not. On some
+ platforms this hardware feature is fully or partially implemented; and if
+ this feature is not supported then registration will fail.
+
+- At the time this documentation was written, the debug driver mainly relies on
+ information gathered by the kernel panic callback notifier from three
+ sampling registers: EDPCSR, EDVIDSR and EDCIDSR: from EDPCSR we can get
+ program counter; EDVIDSR has information for secure state, exception level,
+ bit width, etc; EDCIDSR is context ID value which contains the sampled value
+ of CONTEXTIDR_EL1.
+
+- The driver supports a CPU running in either AArch64 or AArch32 mode. The
+ registers naming convention is a bit different between them, AArch64 uses
+ 'ED' for register prefix (ARM DDI 0487A.k, chapter H9.1) and AArch32 uses
+ 'DBG' as prefix (ARM DDI 0487A.k, chapter G5.1). The driver is unified to
+ use AArch64 naming convention.
+
+- ARMv8-a (ARM DDI 0487A.k) and ARMv7-a (ARM DDI 0406C.b) have different
+ register bits definition. So the driver consolidates two difference:
+
+ If PCSROffset=0b0000, on ARMv8-a the feature of EDPCSR is not implemented;
+ but ARMv7-a defines "PCSR samples are offset by a value that depends on the
+ instruction set state". For ARMv7-a, the driver checks furthermore if CPU
+ runs with ARM or thumb instruction set and calibrate PCSR value, the
+ detailed description for offset is in ARMv7-a ARM (ARM DDI 0406C.b) chapter
+ C11.11.34 "DBGPCSR, Program Counter Sampling Register".
+
+ If PCSROffset=0b0010, ARMv8-a defines "EDPCSR implemented, and samples have
+ no offset applied and do not sample the instruction set state in AArch32
+ state". So on ARMv8 if EDDEVID1.PCSROffset is 0b0010 and the CPU operates
+ in AArch32 state, EDPCSR is not sampled; when the CPU operates in AArch64
+ state EDPCSR is sampled and no offset are applied.
+
+
+Clock and power domain
+----------------------
+
+Before accessing debug registers, we should ensure the clock and power domain
+have been enabled properly. In ARMv8-a ARM (ARM DDI 0487A.k) chapter 'H9.1
+Debug registers', the debug registers are spread into two domains: the debug
+domain and the CPU domain.
+
+ +---------------+
+ | |
+ | |
+ +----------+--+ |
+ dbg_clock -->| |**| |<-- cpu_clock
+ | Debug |**| CPU |
+ dbg_power_domain -->| |**| |<-- cpu_power_domain
+ +----------+--+ |
+ | |
+ | |
+ +---------------+
+
+For debug domain, the user uses DT binding "clocks" and "power-domains" to
+specify the corresponding clock source and power supply for the debug logic.
+The driver calls the pm_runtime_{put|get} operations as needed to handle the
+debug power domain.
+
+For CPU domain, the different SoC designs have different power management
+schemes and finally this heavily impacts external debug module. So we can
+divide into below cases:
+
+- On systems with a sane power controller which can behave correctly with
+ respect to CPU power domain, the CPU power domain can be controlled by
+ register EDPRCR in driver. The driver firstly writes bit EDPRCR.COREPURQ
+ to power up the CPU, and then writes bit EDPRCR.CORENPDRQ for emulation
+ of CPU power down. As result, this can ensure the CPU power domain is
+ powered on properly during the period when access debug related registers;
+
+- Some designs will power down an entire cluster if all CPUs on the cluster
+ are powered down - including the parts of the debug registers that should
+ remain powered in the debug power domain. The bits in EDPRCR are not
+ respected in these cases, so these designs do not support debug over
+ power down in the way that the CoreSight / Debug designers anticipated.
+ This means that even checking EDPRSR has the potential to cause a bus hang
+ if the target register is unpowered.
+
+ In this case, accessing to the debug registers while they are not powered
+ is a recipe for disaster; so we need preventing CPU low power states at boot
+ time or when user enable module at the run time. Please see chapter
+ "How to use the module" for detailed usage info for this.
+
+
+Device Tree Bindings
+--------------------
+
+See Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt for details.
+
+
+How to use the module
+---------------------
+
+If you want to enable debugging functionality at boot time, you can add
+"coresight_cpu_debug.enable=1" to the kernel command line parameter.
+
+The driver also can work as module, so can enable the debugging when insmod
+module:
+# insmod coresight_cpu_debug.ko debug=1
+
+When boot time or insmod module you have not enabled the debugging, the driver
+uses the debugfs file system to provide a knob to dynamically enable or disable
+debugging:
+
+To enable it, write a '1' into /sys/kernel/debug/coresight_cpu_debug/enable:
+# echo 1 > /sys/kernel/debug/coresight_cpu_debug/enable
+
+To disable it, write a '0' into /sys/kernel/debug/coresight_cpu_debug/enable:
+# echo 0 > /sys/kernel/debug/coresight_cpu_debug/enable
+
+As explained in chapter "Clock and power domain", if you are working on one
+platform which has idle states to power off debug logic and the power
+controller cannot work well for the request from EDPRCR, then you should
+firstly constraint CPU idle states before enable CPU debugging feature; so can
+ensure the accessing to debug logic.
+
+If you want to limit idle states at boot time, you can use "nohlt" or
+"cpuidle.off=1" in the kernel command line.
+
+At the runtime you can disable idle states with below methods:
+
+Set latency request to /dev/cpu_dma_latency to disable all CPUs specific idle
+states (if latency = 0uS then disable all idle states):
+# echo "what_ever_latency_you_need_in_uS" > /dev/cpu_dma_latency
+
+Disable specific CPU's specific idle state:
+# echo 1 > /sys/devices/system/cpu/cpu$cpu/cpuidle/state$state/disable
+
+
+Output format
+-------------
+
+Here is an example of the debugging output format:
+
+ARM external debug module:
+coresight-cpu-debug 850000.debug: CPU[0]:
+coresight-cpu-debug 850000.debug: EDPRSR: 00000001 (Power:On DLK:Unlock)
+coresight-cpu-debug 850000.debug: EDPCSR: [<ffff00000808e9bc>] handle_IPI+0x174/0x1d8
+coresight-cpu-debug 850000.debug: EDCIDSR: 00000000
+coresight-cpu-debug 850000.debug: EDVIDSR: 90000000 (State:Non-secure Mode:EL1/0 Width:64bits VMID:0)
+coresight-cpu-debug 852000.debug: CPU[1]:
+coresight-cpu-debug 852000.debug: EDPRSR: 00000001 (Power:On DLK:Unlock)
+coresight-cpu-debug 852000.debug: EDPCSR: [<ffff0000087fab34>] debug_notifier_call+0x23c/0x358
+coresight-cpu-debug 852000.debug: EDCIDSR: 00000000
+coresight-cpu-debug 852000.debug: EDVIDSR: 90000000 (State:Non-secure Mode:EL1/0 Width:64bits VMID:0)
diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt
index 94a987bd2bc5..d4601df6e72e 100644
--- a/Documentation/trace/ftrace.txt
+++ b/Documentation/trace/ftrace.txt
@@ -5,10 +5,11 @@ Copyright 2008 Red Hat Inc.
Author: Steven Rostedt <srostedt@redhat.com>
License: The GNU Free Documentation License, Version 1.2
(dual licensed under the GPL v2)
-Reviewers: Elias Oltmanns, Randy Dunlap, Andrew Morton,
- John Kacur, and David Teigland.
+Original Reviewers: Elias Oltmanns, Randy Dunlap, Andrew Morton,
+ John Kacur, and David Teigland.
Written for: 2.6.28-rc2
Updated for: 3.10
+Updated for: 4.13 - Copyright 2017 VMware Inc. Steven Rostedt
Introduction
------------
@@ -26,9 +27,11 @@ a task is woken to the task is actually scheduled in.
One of the most common uses of ftrace is the event tracing.
Through out the kernel is hundreds of static event points that
-can be enabled via the debugfs file system to see what is
+can be enabled via the tracefs file system to see what is
going on in certain parts of the kernel.
+See events.txt for more information.
+
Implementation Details
----------------------
@@ -39,34 +42,47 @@ See ftrace-design.txt for details for arch porters and such.
The File System
---------------
-Ftrace uses the debugfs file system to hold the control files as
+Ftrace uses the tracefs file system to hold the control files as
well as the files to display output.
-When debugfs is configured into the kernel (which selecting any ftrace
-option will do) the directory /sys/kernel/debug will be created. To mount
+When tracefs is configured into the kernel (which selecting any ftrace
+option will do) the directory /sys/kernel/tracing will be created. To mount
this directory, you can add to your /etc/fstab file:
- debugfs /sys/kernel/debug debugfs defaults 0 0
+ tracefs /sys/kernel/tracing tracefs defaults 0 0
Or you can mount it at run time with:
- mount -t debugfs nodev /sys/kernel/debug
+ mount -t tracefs nodev /sys/kernel/tracing
For quicker access to that directory you may want to make a soft link to
it:
- ln -s /sys/kernel/debug /debug
+ ln -s /sys/kernel/tracing /tracing
+
+ *** NOTICE ***
+
+Before 4.1, all ftrace tracing control files were within the debugfs
+file system, which is typically located at /sys/kernel/debug/tracing.
+For backward compatibility, when mounting the debugfs file system,
+the tracefs file system will be automatically mounted at:
+
+ /sys/kernel/debug/tracing
-Any selected ftrace option will also create a directory called tracing
-within the debugfs. The rest of the document will assume that you are in
-the ftrace directory (cd /sys/kernel/debug/tracing) and will only concentrate
-on the files within that directory and not distract from the content with
-the extended "/sys/kernel/debug/tracing" path name.
+All files located in the tracefs file system will be located in that
+debugfs file system directory as well.
+
+ *** NOTICE ***
+
+Any selected ftrace option will also create the tracefs file system.
+The rest of the document will assume that you are in the ftrace directory
+(cd /sys/kernel/tracing) and will only concentrate on the files within that
+directory and not distract from the content with the extended
+"/sys/kernel/tracing" path name.
That's it! (assuming that you have ftrace configured into your kernel)
-After mounting debugfs, you can see a directory called
-"tracing". This directory contains the control and output files
+After mounting tracefs you will have access to the control and output files
of ftrace. Here is a list of some of the key files:
@@ -92,10 +108,20 @@ of ftrace. Here is a list of some of the key files:
writing to the ring buffer, the tracing overhead may
still be occurring.
+ The kernel function tracing_off() can be used within the
+ kernel to disable writing to the ring buffer, which will
+ set this file to "0". User space can re-enable tracing by
+ echoing "1" into the file.
+
+ Note, the function and event trigger "traceoff" will also
+ set this file to zero and stop tracing. Which can also
+ be re-enabled by user space using this file.
+
trace:
This file holds the output of the trace in a human
- readable format (described below).
+ readable format (described below). Note, tracing is temporarily
+ disabled while this file is being read (opened).
trace_pipe:
@@ -109,7 +135,8 @@ of ftrace. Here is a list of some of the key files:
will not be read again with a sequential read. The
"trace" file is static, and if the tracer is not
adding more data, it will display the same
- information every time it is read.
+ information every time it is read. This file will not
+ disable tracing while being read.
trace_options:
@@ -128,12 +155,14 @@ of ftrace. Here is a list of some of the key files:
tracing_max_latency:
Some of the tracers record the max latency.
- For example, the time interrupts are disabled.
- This time is saved in this file. The max trace
- will also be stored, and displayed by "trace".
- A new max trace will only be recorded if the
- latency is greater than the value in this
- file. (in microseconds)
+ For example, the maximum time that interrupts are disabled.
+ The maximum time is saved in this file. The max trace will also be
+ stored, and displayed by "trace". A new max trace will only be
+ recorded if the latency is greater than the value in this file
+ (in microseconds).
+
+ By echoing in a time into this file, no latency will be recorded
+ unless it is greater than the time in this file.
tracing_thresh:
@@ -152,32 +181,34 @@ of ftrace. Here is a list of some of the key files:
that the kernel uses for allocation, usually 4 KB in size).
If the last page allocated has room for more bytes
than requested, the rest of the page will be used,
- making the actual allocation bigger than requested.
+ making the actual allocation bigger than requested or shown.
( Note, the size may not be a multiple of the page size
due to buffer management meta-data. )
+ Buffer sizes for individual CPUs may vary
+ (see "per_cpu/cpu0/buffer_size_kb" below), and if they do
+ this file will show "X".
+
buffer_total_size_kb:
This displays the total combined size of all the trace buffers.
free_buffer:
- If a process is performing the tracing, and the ring buffer
- should be shrunk "freed" when the process is finished, even
- if it were to be killed by a signal, this file can be used
- for that purpose. On close of this file, the ring buffer will
- be resized to its minimum size. Having a process that is tracing
- also open this file, when the process exits its file descriptor
- for this file will be closed, and in doing so, the ring buffer
- will be "freed".
+ If a process is performing tracing, and the ring buffer should be
+ shrunk "freed" when the process is finished, even if it were to be
+ killed by a signal, this file can be used for that purpose. On close
+ of this file, the ring buffer will be resized to its minimum size.
+ Having a process that is tracing also open this file, when the process
+ exits its file descriptor for this file will be closed, and in doing so,
+ the ring buffer will be "freed".
It may also stop tracing if disable_on_free option is set.
tracing_cpumask:
- This is a mask that lets the user only trace
- on specified CPUs. The format is a hex string
- representing the CPUs.
+ This is a mask that lets the user only trace on specified CPUs.
+ The format is a hex string representing the CPUs.
set_ftrace_filter:
@@ -190,6 +221,9 @@ of ftrace. Here is a list of some of the key files:
to be traced. Echoing names of functions into this file
will limit the trace to only those functions.
+ The functions listed in "available_filter_functions" are what
+ can be written into this file.
+
This interface also allows for commands to be used. See the
"Filter commands" section for more details.
@@ -202,7 +236,14 @@ of ftrace. Here is a list of some of the key files:
set_ftrace_pid:
- Have the function tracer only trace a single thread.
+ Have the function tracer only trace the threads whose PID are
+ listed in this file.
+
+ If the "function-fork" option is set, then when a task whose
+ PID is listed in this file forks, the child's PID will
+ automatically be added to this file, and the child will be
+ traced by the function tracer as well. This option will also
+ cause PIDs of tasks that exit to be removed from the file.
set_event_pid:
@@ -217,17 +258,28 @@ of ftrace. Here is a list of some of the key files:
set_graph_function:
- Set a "trigger" function where tracing should start
- with the function graph tracer (See the section
- "dynamic ftrace" for more details).
+ Functions listed in this file will cause the function graph
+ tracer to only trace these functions and the functions that
+ they call. (See the section "dynamic ftrace" for more details).
+
+ set_graph_notrace:
+
+ Similar to set_graph_function, but will disable function graph
+ tracing when the function is hit until it exits the function.
+ This makes it possible to ignore tracing functions that are called
+ by a specific function.
available_filter_functions:
- This lists the functions that ftrace
- has processed and can trace. These are the function
- names that you can pass to "set_ftrace_filter" or
- "set_ftrace_notrace". (See the section "dynamic ftrace"
- below for more details.)
+ This lists the functions that ftrace has processed and can trace.
+ These are the function names that you can pass to
+ "set_ftrace_filter" or "set_ftrace_notrace".
+ (See the section "dynamic ftrace" below for more details.)
+
+ dyn_ftrace_total_info:
+
+ This file is for debugging purposes. The number of functions that
+ have been converted to nops and are available to be traced.
enabled_functions:
@@ -250,12 +302,21 @@ of ftrace. Here is a list of some of the key files:
an 'I' will be displayed on the same line as the function that
can be overridden.
+ If the architecture supports it, it will also show what callback
+ is being directly called by the function. If the count is greater
+ than 1 it most likely will be ftrace_ops_list_func().
+
+ If the callback of the function jumps to a trampoline that is
+ specific to a the callback and not the standard trampoline,
+ its address will be printed as well as the function that the
+ trampoline calls.
+
function_profile_enabled:
When set it will enable all functions with either the function
- tracer, or if enabled, the function graph tracer. It will
+ tracer, or if configured, the function graph tracer. It will
keep a histogram of the number of functions that were called
- and if run with the function graph tracer, it will also keep
+ and if the function graph tracer was configured, it will also keep
track of the time spent in those functions. The histogram
content can be displayed in the files:
@@ -283,12 +344,11 @@ of ftrace. Here is a list of some of the key files:
printk_formats:
This is for tools that read the raw format files. If an event in
- the ring buffer references a string (currently only trace_printk()
- does this), only a pointer to the string is recorded into the buffer
- and not the string itself. This prevents tools from knowing what
- that string was. This file displays the string and address for
- the string allowing tools to map the pointers to what the
- strings were.
+ the ring buffer references a string, only a pointer to the string
+ is recorded into the buffer and not the string itself. This prevents
+ tools from knowing what that string was. This file displays the string
+ and address for the string allowing tools to map the pointers to what
+ the strings were.
saved_cmdlines:
@@ -298,6 +358,22 @@ of ftrace. Here is a list of some of the key files:
comms for events. If a pid for a comm is not listed, then
"<...>" is displayed in the output.
+ If the option "record-cmd" is set to "0", then comms of tasks
+ will not be saved during recording. By default, it is enabled.
+
+ saved_cmdlines_size:
+
+ By default, 128 comms are saved (see "saved_cmdlines" above). To
+ increase or decrease the amount of comms that are cached, echo
+ in a the number of comms to cache, into this file.
+
+ saved_tgids:
+
+ If the option "record-tgid" is set, on each scheduling context switch
+ the Task Group ID of a task is saved in a table mapping the PID of
+ the thread to its TGID. By default, the "record-tgid" option is
+ disabled.
+
snapshot:
This displays the "snapshot" buffer and also lets the user
@@ -336,6 +412,9 @@ of ftrace. Here is a list of some of the key files:
# cat trace_clock
[local] global counter x86-tsc
+ The clock with the square brackets around it is the one
+ in effect.
+
local: Default clock, but may not be in sync across CPUs
global: This clock is in sync with all CPUs but may
@@ -448,6 +527,23 @@ of ftrace. Here is a list of some of the key files:
See events.txt for more information.
+ set_event:
+
+ By echoing in the event into this file, will enable that event.
+
+ See events.txt for more information.
+
+ available_events:
+
+ A list of events that can be enabled in tracing.
+
+ See events.txt for more information.
+
+ hwlat_detector:
+
+ Directory for the Hardware Latency Detector.
+ See "Hardware Latency Detector" section below.
+
per_cpu:
This is a directory that contains the trace per_cpu information.
@@ -539,13 +635,25 @@ Here is the list of current tracers that may be configured.
to draw a graph of function calls similar to C code
source.
+ "blk"
+
+ The block tracer. The tracer used by the blktrace user
+ application.
+
+ "hwlat"
+
+ The Hardware Latency tracer is used to detect if the hardware
+ produces any latency. See "Hardware Latency Detector" section
+ below.
+
"irqsoff"
Traces the areas that disable interrupts and saves
the trace with the longest max latency.
See tracing_max_latency. When a new max is recorded,
it replaces the old trace. It is best to view this
- trace with the latency-format option enabled.
+ trace with the latency-format option enabled, which
+ happens automatically when the tracer is selected.
"preemptoff"
@@ -571,6 +679,26 @@ Here is the list of current tracers that may be configured.
RT tasks (as the current "wakeup" does). This is useful
for those interested in wake up timings of RT tasks.
+ "wakeup_dl"
+
+ Traces and records the max latency that it takes for
+ a SCHED_DEADLINE task to be woken (as the "wakeup" and
+ "wakeup_rt" does).
+
+ "mmiotrace"
+
+ A special tracer that is used to trace binary module.
+ It will trace all the calls that a module makes to the
+ hardware. Everything it writes and reads from the I/O
+ as well.
+
+ "branch"
+
+ This tracer can be configured when tracing likely/unlikely
+ calls within the kernel. It will trace when a likely and
+ unlikely branch is hit and if it was correct in its prediction
+ of being correct.
+
"nop"
This is the "trace nothing" tracer. To remove all
@@ -582,7 +710,7 @@ Examples of using the tracer
----------------------------
Here are typical examples of using the tracers when controlling
-them only with the debugfs interface (without using any
+them only with the tracefs interface (without using any
user-land utilities).
Output format:
@@ -674,7 +802,7 @@ why a latency happened. Here is a typical trace.
This shows that the current tracer is "irqsoff" tracing the time
for which interrupts were disabled. It gives the trace version (which
never changes) and the version of the kernel upon which this was executed on
-(3.10). Then it displays the max latency in microseconds (259 us). The number
+(3.8). Then it displays the max latency in microseconds (259 us). The number
of trace entries displayed and the total number (both are four: #4/4).
VP, KP, SP, and HP are always zero and are reserved for later use.
#P is the number of online CPUs (#P:4).
@@ -709,6 +837,8 @@ explains which is which.
'.' otherwise.
hardirq/softirq:
+ 'Z' - NMI occurred inside a hardirq
+ 'z' - NMI is running
'H' - hard irq occurred inside a softirq.
'h' - hard irq is running
's' - soft irq is running
@@ -757,24 +887,24 @@ nohex
nobin
noblock
trace_printk
-nobranch
annotate
nouserstacktrace
nosym-userobj
noprintk-msg-only
context-info
nolatency-format
-sleep-time
-graph-time
record-cmd
+norecord-tgid
overwrite
nodisable_on_free
irq-info
markers
noevent-fork
function-trace
+nofunction-fork
nodisplay-graph
nostacktrace
+nobranch
To disable one of the options, echo in the option prepended with
"no".
@@ -830,8 +960,6 @@ Here are the available options:
trace_printk - Can disable trace_printk() from writing into the buffer.
- branch - Enable branch tracing with the tracer.
-
annotate - It is sometimes confusing when the CPU buffers are full
and one CPU buffer had a lot of events recently, thus
a shorter time frame, were another CPU may have only had
@@ -850,7 +978,8 @@ Here are the available options:
<idle>-0 [001] .Ns3 21169.031485: sub_preempt_count <-_raw_spin_unlock
userstacktrace - This option changes the trace. It records a
- stacktrace of the current userspace thread.
+ stacktrace of the current user space thread after
+ each trace event.
sym-userobj - when user stacktrace are enabled, look up which
object the address belongs to, and print a
@@ -873,29 +1002,21 @@ x494] <- /root/a.out[+0x4a8] <- /lib/libc-2.7.so[+0x1e1a6]
context-info - Show only the event data. Hides the comm, PID,
timestamp, CPU, and other useful data.
- latency-format - This option changes the trace. When
- it is enabled, the trace displays
- additional information about the
- latencies, as described in "Latency
- trace format".
-
- sleep-time - When running function graph tracer, to include
- the time a task schedules out in its function.
- When enabled, it will account time the task has been
- scheduled out as part of the function call.
-
- graph-time - When running function profiler with function graph tracer,
- to include the time to call nested functions. When this is
- not set, the time reported for the function will only
- include the time the function itself executed for, not the
- time for functions that it called.
+ latency-format - This option changes the trace output. When it is enabled,
+ the trace displays additional information about the
+ latency, as described in "Latency trace format".
record-cmd - When any event or tracer is enabled, a hook is enabled
- in the sched_switch trace point to fill comm cache
+ in the sched_switch trace point to fill comm cache
with mapped pids and comms. But this may cause some
overhead, and if you only care about pids, and not the
name of the task, disabling this option can lower the
- impact of tracing.
+ impact of tracing. See "saved_cmdlines".
+
+ record-tgid - When any event or tracer is enabled, a hook is enabled
+ in the sched_switch trace point to fill the cache of
+ mapped Thread Group IDs (TGID) mapping to pids. See
+ "saved_tgids".
overwrite - This controls what happens when the trace buffer is
full. If "1" (default), the oldest events are
@@ -935,19 +1056,98 @@ x494] <- /root/a.out[+0x4a8] <- /lib/libc-2.7.so[+0x1e1a6]
functions. This keeps the overhead of the tracer down
when performing latency tests.
+ function-fork - When set, tasks with PIDs listed in set_ftrace_pid will
+ have the PIDs of their children added to set_ftrace_pid
+ when those tasks fork. Also, when tasks with PIDs in
+ set_ftrace_pid exit, their PIDs will be removed from the
+ file.
+
display-graph - When set, the latency tracers (irqsoff, wakeup, etc) will
use function graph tracing instead of function tracing.
- stacktrace - This is one of the options that changes the trace
- itself. When a trace is recorded, so is the stack
- of functions. This allows for back traces of
- trace sites.
+ stacktrace - When set, a stack trace is recorded after any trace event
+ is recorded.
+
+ branch - Enable branch tracing with the tracer. This enables branch
+ tracer along with the currently set tracer. Enabling this
+ with the "nop" tracer is the same as just enabling the
+ "branch" tracer.
Note: Some tracers have their own options. They only appear in this
file when the tracer is active. They always appear in the
options directory.
+Here are the per tracer options:
+
+Options for function tracer:
+
+ func_stack_trace - When set, a stack trace is recorded after every
+ function that is recorded. NOTE! Limit the functions
+ that are recorded before enabling this, with
+ "set_ftrace_filter" otherwise the system performance
+ will be critically degraded. Remember to disable
+ this option before clearing the function filter.
+
+Options for function_graph tracer:
+
+ Since the function_graph tracer has a slightly different output
+ it has its own options to control what is displayed.
+
+ funcgraph-overrun - When set, the "overrun" of the graph stack is
+ displayed after each function traced. The
+ overrun, is when the stack depth of the calls
+ is greater than what is reserved for each task.
+ Each task has a fixed array of functions to
+ trace in the call graph. If the depth of the
+ calls exceeds that, the function is not traced.
+ The overrun is the number of functions missed
+ due to exceeding this array.
+
+ funcgraph-cpu - When set, the CPU number of the CPU where the trace
+ occurred is displayed.
+
+ funcgraph-overhead - When set, if the function takes longer than
+ A certain amount, then a delay marker is
+ displayed. See "delay" above, under the
+ header description.
+
+ funcgraph-proc - Unlike other tracers, the process' command line
+ is not displayed by default, but instead only
+ when a task is traced in and out during a context
+ switch. Enabling this options has the command
+ of each process displayed at every line.
+
+ funcgraph-duration - At the end of each function (the return)
+ the duration of the amount of time in the
+ function is displayed in microseconds.
+
+ funcgraph-abstime - When set, the timestamp is displayed at each
+ line.
+
+ funcgraph-irqs - When disabled, functions that happen inside an
+ interrupt will not be traced.
+
+ funcgraph-tail - When set, the return event will include the function
+ that it represents. By default this is off, and
+ only a closing curly bracket "}" is displayed for
+ the return of a function.
+
+ sleep-time - When running function graph tracer, to include
+ the time a task schedules out in its function.
+ When enabled, it will account time the task has been
+ scheduled out as part of the function call.
+
+ graph-time - When running function profiler with function graph tracer,
+ to include the time to call nested functions. When this is
+ not set, the time reported for the function will only
+ include the time the function itself executed for, not the
+ time for functions that it called.
+
+Options for blk tracer:
+
+ blk_classic - Shows a more minimalistic output.
+
irqsoff
-------
@@ -1609,7 +1809,7 @@ Doing the same with chrt -r 5 and function-trace set.
<idle>-0 3dN.2 14us : sched_avg_update <-__cpu_load_update
<idle>-0 3dN.2 14us : _raw_spin_unlock <-cpu_load_update_nohz
<idle>-0 3dN.2 14us : sub_preempt_count <-_raw_spin_unlock
- <idle>-0 3dN.1 15us : calc_load_exit_idle <-tick_nohz_idle_exit
+ <idle>-0 3dN.1 15us : calc_load_nohz_stop <-tick_nohz_idle_exit
<idle>-0 3dN.1 15us : touch_softlockup_watchdog <-tick_nohz_idle_exit
<idle>-0 3dN.1 15us : hrtimer_cancel <-tick_nohz_idle_exit
<idle>-0 3dN.1 15us : hrtimer_try_to_cancel <-hrtimer_cancel
@@ -1711,6 +1911,85 @@ events.
<idle>-0 2d..3 6us : 0:120:R ==> [002] 5882: 94:R sleep
+Hardware Latency Detector
+-------------------------
+
+The hardware latency detector is executed by enabling the "hwlat" tracer.
+
+NOTE, this tracer will affect the performance of the system as it will
+periodically make a CPU constantly busy with interrupts disabled.
+
+ # echo hwlat > current_tracer
+ # sleep 100
+ # cat trace
+# tracer: hwlat
+#
+# _-----=> irqs-off
+# / _----=> need-resched
+# | / _---=> hardirq/softirq
+# || / _--=> preempt-depth
+# ||| / delay
+# TASK-PID CPU# |||| TIMESTAMP FUNCTION
+# | | | |||| | |
+ <...>-3638 [001] d... 19452.055471: #1 inner/outer(us): 12/14 ts:1499801089.066141940
+ <...>-3638 [003] d... 19454.071354: #2 inner/outer(us): 11/9 ts:1499801091.082164365
+ <...>-3638 [002] dn.. 19461.126852: #3 inner/outer(us): 12/9 ts:1499801098.138150062
+ <...>-3638 [001] d... 19488.340960: #4 inner/outer(us): 8/12 ts:1499801125.354139633
+ <...>-3638 [003] d... 19494.388553: #5 inner/outer(us): 8/12 ts:1499801131.402150961
+ <...>-3638 [003] d... 19501.283419: #6 inner/outer(us): 0/12 ts:1499801138.297435289 nmi-total:4 nmi-count:1
+
+
+The above output is somewhat the same in the header. All events will have
+interrupts disabled 'd'. Under the FUNCTION title there is:
+
+ #1 - This is the count of events recorded that were greater than the
+ tracing_threshold (See below).
+
+ inner/outer(us): 12/14
+
+ This shows two numbers as "inner latency" and "outer latency". The test
+ runs in a loop checking a timestamp twice. The latency detected within
+ the two timestamps is the "inner latency" and the latency detected
+ after the previous timestamp and the next timestamp in the loop is
+ the "outer latency".
+
+ ts:1499801089.066141940
+
+ The absolute timestamp that the event happened.
+
+ nmi-total:4 nmi-count:1
+
+ On architectures that support it, if an NMI comes in during the
+ test, the time spent in NMI is reported in "nmi-total" (in
+ microseconds).
+
+ All architectures that have NMIs will show the "nmi-count" if an
+ NMI comes in during the test.
+
+hwlat files:
+
+ tracing_threshold - This gets automatically set to "10" to represent 10
+ microseconds. This is the threshold of latency that
+ needs to be detected before the trace will be recorded.
+
+ Note, when hwlat tracer is finished (another tracer is
+ written into "current_tracer"), the original value for
+ tracing_threshold is placed back into this file.
+
+ hwlat_detector/width - The length of time the test runs with interrupts
+ disabled.
+
+ hwlat_detector/window - The length of time of the window which the test
+ runs. That is, the test will run for "width"
+ microseconds per "window" microseconds
+
+ tracing_cpumask - When the test is started. A kernel thread is created that
+ runs the test. This thread will alternate between CPUs
+ listed in the tracing_cpumask between each period
+ (one "window"). To limit the test to specific CPUs
+ set the mask in this file to only the CPUs that the test
+ should run on.
+
function
--------
@@ -1821,15 +2100,15 @@ something like this simple program:
#define STR(x) _STR(x)
#define MAX_PATH 256
-const char *find_debugfs(void)
+const char *find_tracefs(void)
{
- static char debugfs[MAX_PATH+1];
- static int debugfs_found;
+ static char tracefs[MAX_PATH+1];
+ static int tracefs_found;
char type[100];
FILE *fp;
- if (debugfs_found)
- return debugfs;
+ if (tracefs_found)
+ return tracefs;
if ((fp = fopen("/proc/mounts","r")) == NULL) {
perror("/proc/mounts");
@@ -1839,27 +2118,27 @@ const char *find_debugfs(void)
while (fscanf(fp, "%*s %"
STR(MAX_PATH)
"s %99s %*s %*d %*d\n",
- debugfs, type) == 2) {
- if (strcmp(type, "debugfs") == 0)
+ tracefs, type) == 2) {
+ if (strcmp(type, "tracefs") == 0)
break;
}
fclose(fp);
- if (strcmp(type, "debugfs") != 0) {
- fprintf(stderr, "debugfs not mounted");
+ if (strcmp(type, "tracefs") != 0) {
+ fprintf(stderr, "tracefs not mounted");
return NULL;
}
- strcat(debugfs, "/tracing/");
- debugfs_found = 1;
+ strcat(tracefs, "/tracing/");
+ tracefs_found = 1;
- return debugfs;
+ return tracefs;
}
const char *tracing_file(const char *file_name)
{
static char trace_file[MAX_PATH+1];
- snprintf(trace_file, MAX_PATH, "%s/%s", find_debugfs(), file_name);
+ snprintf(trace_file, MAX_PATH, "%s/%s", find_tracefs(), file_name);
return trace_file;
}
@@ -1898,12 +2177,12 @@ Or this simple script!
------
#!/bin/bash
-debugfs=`sed -ne 's/^debugfs \(.*\) debugfs.*/\1/p' /proc/mounts`
-echo nop > $debugfs/tracing/current_tracer
-echo 0 > $debugfs/tracing/tracing_on
-echo $$ > $debugfs/tracing/set_ftrace_pid
-echo function > $debugfs/tracing/current_tracer
-echo 1 > $debugfs/tracing/tracing_on
+tracefs=`sed -ne 's/^tracefs \(.*\) tracefs.*/\1/p' /proc/mounts`
+echo nop > $tracefs/tracing/current_tracer
+echo 0 > $tracefs/tracing/tracing_on
+echo $$ > $tracefs/tracing/set_ftrace_pid
+echo function > $tracefs/tracing/current_tracer
+echo 1 > $tracefs/tracing/tracing_on
exec "$@"
------
@@ -2145,13 +2424,18 @@ include the -pg switch in the compiling of the kernel.)
At compile time every C file object is run through the
recordmcount program (located in the scripts directory). This
program will parse the ELF headers in the C object to find all
-the locations in the .text section that call mcount. (Note, only
-white listed .text sections are processed, since processing other
-sections like .init.text may cause races due to those sections
-being freed unexpectedly).
-
-A new section called "__mcount_loc" is created that holds
-references to all the mcount call sites in the .text section.
+the locations in the .text section that call mcount. Starting
+with gcc verson 4.6, the -mfentry has been added for x86, which
+calls "__fentry__" instead of "mcount". Which is called before
+the creation of the stack frame.
+
+Note, not all sections are traced. They may be prevented by either
+a notrace, or blocked another way and all inline functions are not
+traced. Check the "available_filter_functions" file to see what functions
+can be traced.
+
+A section called "__mcount_loc" is created that holds
+references to all the mcount/fentry call sites in the .text section.
The recordmcount program re-links this section back into the
original object. The final linking stage of the kernel will add all these
references into a single table.
@@ -2679,7 +2963,7 @@ in time without stopping tracing. Ftrace swaps the current
buffer with a spare buffer, and tracing continues in the new
current (=previous spare) buffer.
-The following debugfs files in "tracing" are related to this
+The following tracefs files in "tracing" are related to this
feature:
snapshot:
@@ -2752,7 +3036,7 @@ cat: snapshot: Device or resource busy
Instances
---------
-In the debugfs tracing directory is a directory called "instances".
+In the tracefs tracing directory is a directory called "instances".
This directory can have new directories created inside of it using
mkdir, and removing directories with rmdir. The directory created
with mkdir in this directory will already contain files and other
diff --git a/Documentation/trace/stm.txt b/Documentation/trace/stm.txt
index 11cff47eecce..03765750104b 100644
--- a/Documentation/trace/stm.txt
+++ b/Documentation/trace/stm.txt
@@ -83,7 +83,7 @@ by writing the name of the desired stm device there, for example:
$ echo dummy_stm.0 > /sys/class/stm_source/console/stm_source_link
For examples on how to use stm_source interface in the kernel, refer
-to stm_console or stm_heartbeat drivers.
+to stm_console, stm_heartbeat or stm_ftrace drivers.
Each stm_source device will need to assume a master and a range of
channels, depending on how many channels it requires. These are
@@ -107,5 +107,16 @@ console in the STP stream, create a "console" policy entry (see the
beginning of this text on how to do that). When initialized, it will
consume one channel.
+stm_ftrace
+==========
+
+This is another "stm_source" device, once the stm_ftrace has been
+linked with an stm device, and if "function" tracer is enabled,
+function address and parent function address which Ftrace subsystem
+would store into ring buffer will be exported via the stm device at
+the same time.
+
+Currently only Ftrace "function" tracer is supported.
+
[1] https://software.intel.com/sites/default/files/managed/d3/3c/intel-th-developer-manual.pdf
[2] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0444b/index.html
diff --git a/Documentation/translations/ja_JP/howto.rst b/Documentation/translations/ja_JP/howto.rst
index 4511eed0fabb..8d7ed0cbbf5f 100644
--- a/Documentation/translations/ja_JP/howto.rst
+++ b/Documentation/translations/ja_JP/howto.rst
@@ -197,13 +197,6 @@ ReSTマークアップを使ã£ãŸãƒ‰ã‚­ãƒ¥ãƒ¡ãƒ³ãƒˆã¯ Documentation/outputã«ç
make latexdocs
make epubdocs
-ç¾åœ¨ã€å¹¾ã¤ã‹ã® DocBookå½¢å¼ã§æ›¸ã‹ã‚ŒãŸãƒ‰ã‚­ãƒ¥ãƒ¡ãƒ³ãƒˆã¯ ReSTå½¢å¼ã«è»¢æ›ä¸­ã§
-ã™ã€‚ãれらã®ãƒ‰ã‚­ãƒ¥ãƒ¡ãƒ³ãƒˆã¯Documentation/DocBook ディレクトリã«ç”Ÿæˆã•れã€
-Postscript ã¾ãŸã¯ man ページã®å½¢å¼ã‚’生æˆã™ã‚‹ã«ã¯ä»¥ä¸‹ã®ã‚ˆã†ã«ã—ã¾ã™ - ::
-
- make psdocs
- make mandocs
-
カーãƒãƒ«é–‹ç™ºè€…ã«ãªã‚‹ã«ã¯
------------------------
diff --git a/Documentation/translations/ko_KR/howto.rst b/Documentation/translations/ko_KR/howto.rst
index 2333697251dd..624654bdcd8a 100644
--- a/Documentation/translations/ko_KR/howto.rst
+++ b/Documentation/translations/ko_KR/howto.rst
@@ -191,13 +191,6 @@ ReST 마í¬ì—…ì„ ì‚¬ìš©í•˜ëŠ” ë¬¸ì„œë“¤ì€ Documentation/output ì— ìƒì„±ëœë‹
make latexdocs
make epubdocs
-현재, ReST ë¡œì˜ ë³€í™˜ì´ ì§„í–‰ì¤‘ì¸, DocBook 으로 ì“°ì¸ ë¬¸ì„œë“¤ì´ ì¡´ìž¬í•œë‹¤. 그런
-ë¬¸ì„œë“¤ì€ Documentation/DocBook/ 디렉토리 ì•ˆì— ìƒì„±ë  것ì´ê³  ë‹¤ìŒ ì»¤ë§¨ë“œë¥¼ 통해
-Postscript 나 man page ë¡œë„ ë§Œë“¤ì–´ì§ˆ 수 있다::
-
- make psdocs
- make mandocs
-
ì»¤ë„ ê°œë°œìžê°€ ë˜ëŠ” 것
---------------------
@@ -270,15 +263,17 @@ pub/linux/kernel/v4.x/ 디렉토리ì—서 ì°¸ì¡°ë  ìˆ˜ 있다.개발 프로세ì
선호ë˜ëŠ” ë°©ë²•ì€ git(커ë„ì˜ ì†ŒìŠ¤ 관리 툴, ë” ë§Žì€ ì •ë³´ë“¤ì€
https://git-scm.com/ ì—서 참조할 수 있다)를 사용하는 것ì´ì§€ë§Œ 순수한
패치파ì¼ì˜ 형ì‹ìœ¼ë¡œ 보내는 ê²ƒë„ ë¬´ê´€í•˜ë‹¤.
- - 2주 í›„ì— -rc1 커ë„ì´ ë°°í¬ë˜ë©° 지금부터는 ì „ì²´ 커ë„ì˜ ì•ˆì •ì„±ì— ì˜í–¥ì„
- 미칠수 있는 새로운 ê¸°ëŠ¥ë“¤ì„ í¬í•¨í•˜ì§€ 않는 íŒ¨ì¹˜ë“¤ë§Œì´ ì¶”ê°€ë  ìˆ˜ 있다.
- 완전히 새로운 드ë¼ì´ë²„(í˜¹ì€ íŒŒì¼ì‹œìŠ¤í…œ)는 -rc1 ì´í›„ì—ë§Œ 받아들여진다는
- ê²ƒì„ ê¸°ì–µí•´ë¼. 왜ëƒí•˜ë©´ ë³€ê²½ì´ ìžì²´ë‚´ì—서만 ë°œìƒí•˜ê³  ì¶”ê°€ëœ ì½”ë“œê°€
- 드ë¼ì´ë²„ ì™¸ë¶€ì˜ ë‹¤ë¥¸ 부분ì—는 ì˜í–¥ì„ 주지 않으므로 그런 변경ì€
+ - 2주 í›„ì— -rc1 커ë„ì´ ë¦´ë¦¬ì¦ˆë˜ë©° ì—¬ê¸°ì„œë¶€í„°ì˜ ì£¼ì•ˆì ì€ 새로운 커ë„ì„
+ 가능한한 안정ë˜ê²Œ 하는 것ì´ë‹¤. ì´ ì‹œì ì—ì„œì˜ ëŒ€ë¶€ë¶„ì˜ íŒ¨ì¹˜ë“¤ì€
회귀(ì—­ìžì£¼: ì´ì „ì—는 존재하지 않았지만 새로운 기능추가나 변경으로 ì¸í•´
- ìƒê²¨ë‚œ 버그)를 ì¼ìœ¼í‚¬ 만한 ìœ„í—˜ì„ ê°€ì§€ê³  있지 않기 때문ì´ë‹¤. -rc1ì´
- ë°°í¬ëœ ì´í›„ì— git를 사용하여 íŒ¨ì¹˜ë“¤ì„ Linusì—게 보낼수 있지만 패치들ì€
- ê³µì‹ì ì¸ ë©”ì¼ë§ 리스트로 보내서 검토를 ë°›ì„ í•„ìš”ê°€ 있다.
+ ìƒê²¨ë‚œ 버그)를 ê³ ì³ì•¼ 한다. ì´ì „부터 존재한 버그는 회귀가 아니므로, 그런
+ ë²„ê·¸ì— ëŒ€í•œ ìˆ˜ì •ì‚¬í•­ì€ ì¤‘ìš”í•œ 경우ì—ë§Œ 보내져야 한다. 완전히 새로운
+ 드ë¼ì´ë²„(í˜¹ì€ íŒŒì¼ì‹œìŠ¤í…œ)는 -rc1 ì´í›„ì—ë§Œ 받아들여진다는 ê²ƒì„ ê¸°ì–µí•´ë¼.
+ 왜ëƒí•˜ë©´ ë³€ê²½ì´ ìžì²´ë‚´ì—서만 ë°œìƒí•˜ê³  ì¶”ê°€ëœ ì½”ë“œê°€ 드ë¼ì´ë²„ ì™¸ë¶€ì˜ ë‹¤ë¥¸
+ 부분ì—는 ì˜í–¥ì„ 주지 않으므로 그런 ë³€ê²½ì€ íšŒê·€ë¥¼ ì¼ìœ¼í‚¬ 만한 ìœ„í—˜ì„ ê°€ì§€ê³ 
+ 있지 않기 때문ì´ë‹¤. -rc1ì´ ë°°í¬ëœ ì´í›„ì— git를 사용하여 íŒ¨ì¹˜ë“¤ì„ Linusì—게
+ 보낼수 있지만 íŒ¨ì¹˜ë“¤ì€ ê³µì‹ì ì¸ ë©”ì¼ë§ 리스트로 보내서 검토를 ë°›ì„ í•„ìš”ê°€
+ 있다.
- 새로운 -rc는 Linusê°€ 현재 git treeê°€ 테스트 í•˜ê¸°ì— ì¶©ë¶„ížˆ ì•ˆì •ëœ ìƒíƒœì—
있다고 íŒë‹¨ë  때마다 ë°°í¬ëœë‹¤. 목표는 새로운 -rc 커ë„ì„ ë§¤ì£¼ ë°°í¬í•˜ëŠ”
것ì´ë‹¤.
@@ -359,7 +354,7 @@ http://patchwork.ozlabs.org/ ì— ë‚˜ì—´ë˜ì–´ 있다.
버그 보고
---------
-https://bugzilla.kernel.org는 리눅스 ì»¤ë„ ê°œë°œìžë“¤ì´ 커ë„ì˜ ë²„ê·¸ë¥¼ ì¶”ì í•˜ëŠ”
+https://bugzilla.kernel.org 는 리눅스 ì»¤ë„ ê°œë°œìžë“¤ì´ 커ë„ì˜ ë²„ê·¸ë¥¼ ì¶”ì í•˜ëŠ”
ê³³ì´ë‹¤. 사용ìžë“¤ì€ 발견한 모든 ë²„ê·¸ë“¤ì„ ë³´ê³ í•˜ê¸° 위하여 ì´ íˆ´ì„ ì‚¬ìš©í•  것ì„
권장한다. kernel bugzilla를 사용하는 ìžì„¸í•œ ë°©ë²•ì€ ë‹¤ìŒì„ 참조하ë¼.
diff --git a/Documentation/translations/ko_KR/memory-barriers.txt b/Documentation/translations/ko_KR/memory-barriers.txt
index d05d4c54e8f7..a7a813258013 100644
--- a/Documentation/translations/ko_KR/memory-barriers.txt
+++ b/Documentation/translations/ko_KR/memory-barriers.txt
@@ -523,7 +523,7 @@ CPU ì—게 기대할 수 있는 ìµœì†Œí•œì˜ ë³´ìž¥ì‚¬í•­ 몇가지가 있습니
즉, ACQUIRE 는 ìµœì†Œí•œì˜ "ì·¨ë“" ë™ìž‘처럼, 그리고 RELEASE 는 ìµœì†Œí•œì˜ "공개"
처럼 ë™ìž‘한다는 ì˜ë¯¸ìž…니다.
-atomic_ops.txt ì—서 설명ë˜ëŠ” 어토믹 오í¼ë ˆì´ì…˜ë“¤ 중ì—는 완전히 순서잡힌 것들과
+atomic_t.txt ì— ì„¤ëª…ëœ ì–´í† ë¯¹ 오í¼ë ˆì´ì…˜ë“¤ 중 ì¼ë¶€ëŠ” 완전히 순서잡힌 것들과
(배리어를 사용하지 않는) ì™„í™”ëœ ìˆœì„œì˜ ê²ƒë“¤ ì™¸ì— ACQUIRE 와 RELEASE 부류ì˜
ê²ƒë“¤ë„ ì¡´ìž¬í•©ë‹ˆë‹¤. 로드와 스토어를 ëª¨ë‘ ìˆ˜í–‰í•˜ëŠ” ì¡°í•©ëœ ì–´í† ë¯¹ 오í¼ë ˆì´ì…˜ì—서,
ACQUIRE 는 해당 오í¼ë ˆì´ì…˜ì˜ 로드 부분ì—ë§Œ ì ìš©ë˜ê³  RELEASE 는 해당
@@ -617,7 +617,22 @@ ACQUIRE 는 해당 오í¼ë ˆì´ì…˜ì˜ 로드 부분ì—ë§Œ ì ìš©ë˜ê³  RELEASE ë
ì´ ë³€ê²½ì€ ì•žì˜ ì²˜ìŒ ë‘가지 ê²°ê³¼ 중 í•˜ë‚˜ë§Œì´ ë°œìƒí•  수 있고, ì„¸ë²ˆì§¸ì˜ ê²°ê³¼ëŠ”
ë°œìƒí•  수 ì—†ë„ë¡ í•©ë‹ˆë‹¤.
-ë°ì´í„° ì˜ì¡´ì„± 배리어는 ì˜ì¡´ì  ì“°ê¸°ì— ëŒ€í•´ì„œë„ ìˆœì„œë¥¼ 잡아ì¤ë‹ˆë‹¤:
+
+[!] ì´ ìƒë‹¹ížˆ ë°˜ì§ê´€ì ì¸ ìƒí™©ì€ ë¶„ë¦¬ëœ ìºì‹œë¥¼ 가지는 기계들ì—서 가장 잘
+ë°œìƒí•˜ëŠ”ë°, 예를 들면 한 ìºì‹œ ë±…í¬ëŠ” ì§ìˆ˜ ë²ˆí˜¸ì˜ ìºì‹œ ë¼ì¸ë“¤ì„ 처리하고, 다른
+ë±…í¬ëŠ” 홀수 ë²ˆí˜¸ì˜ ìºì‹œ ë¼ì¸ë“¤ì„ 처리하는 ê²½ìš°ìž„ì„ ì•Œì•„ë‘시기 ë°”ëžë‹ˆë‹¤. í¬ì¸í„°
+P 는 ì§ìˆ˜ 번호 ìºì‹œ ë¼ì¸ì— 저장ë˜ì–´ 있고, 변수 B 는 홀수 번호 ìºì‹œ ë¼ì¸ì—
+저장ë˜ì–´ ìžˆì„ ìˆ˜ 있습니다. 여기서 ê°’ì„ ì½ì–´ì˜¤ëŠ” CPU ì˜ ìºì‹œì˜ 홀수 번호 처리
+ë±…í¬ëŠ” 열심히 ì¼ê°ì„ ì²˜ë¦¬ì¤‘ì¸ ë°˜ë©´ 홀수 번호 처리 ë±…í¬ëŠ” í•  ì¼ ì—†ì´ í•œê°€í•œ
+중ì´ë¼ë©´ í¬ì¸í„° P (&B) ì˜ ìƒˆë¡œìš´ ê°’ê³¼ 변수 B ì˜ ê¸°ì¡´ ê°’ (2) 를 ë³¼ 수 있습니다.
+
+
+ì˜ì¡´ì  ì“°ê¸°ë“¤ì˜ ìˆœì„œë¥¼ 맞추는ë°ì—는 ë°ì´í„° ì˜ì¡´ì„± 배리어가 필요치 않ì€ë°, ì´ëŠ”
+리눅스 커ë„ì´ ì§€ì›í•˜ëŠ” CPU ë“¤ì€ (1) 쓰기가 ì •ë§ë¡œ ì¼ì–´ë‚ ì§€, (2) 쓰기가 ì–´ë””ì—
+ì´ë£¨ì–´ì§ˆì§€, 그리고 (3) 쓰여질 ê°’ì„ í™•ì‹¤ížˆ 알기 전까지는 쓰기를 수행하지 않기
+때문입니다. 하지만 "컨트롤 ì˜ì¡´ì„±" 섹션과
+Documentation/RCU/rcu_dereference.txt 파ì¼ì„ ì£¼ì˜ ê¹Šê²Œ ì½ì–´ 주시기 ë°”ëžë‹ˆë‹¤:
+컴파ì¼ëŸ¬ëŠ” 매우 ì°½ì˜ì ì¸ ë§Žì€ ë°©ë²•ìœ¼ë¡œ 종ì†ì„±ì„ ê¹° 수 있습니다.
CPU 1 CPU 2
=============== ===============
@@ -626,28 +641,19 @@ ACQUIRE 는 해당 오í¼ë ˆì´ì…˜ì˜ 로드 부분ì—ë§Œ ì ìš©ë˜ê³  RELEASE ë
<쓰기 배리어>
WRITE_ONCE(P, &B);
Q = READ_ONCE(P);
- <ë°ì´í„° ì˜ì¡´ì„± 배리어>
- *Q = 5;
+ WRITE_ONCE(*Q, 5);
-ì´ ë°ì´í„° ì˜ì¡´ì„± 배리어는 Q ë¡œì˜ ì½ê¸°ê°€ *Q ë¡œì˜ ìŠ¤í† ì–´ì™€ 순서를 맞추게
-í•´ì¤ë‹ˆë‹¤. ì´ëŠ” 다ìŒê³¼ ê°™ì€ ê²°ê³¼ë¥¼ 막습니다:
+ë”°ë¼ì„œ, Q ë¡œì˜ ì½ê¸°ì™€ *Q ë¡œì˜ ì“°ê¸° 사ì´ì—는 ë°ì´í„° 종ì†ì„± 배리어가 필요치
+않습니다. 달리 ë§í•˜ë©´, ë°ì´í„° 종ì†ì„± 배리어가 ì—†ë”ë¼ë„ ë‹¤ìŒ ê²°ê³¼ëŠ” ìƒê¸°ì§€
+않습니다:
(Q == &B) && (B == 4)
ì´ëŸ° íŒ¨í„´ì€ ë“œë¬¼ê²Œ 사용ë˜ì–´ì•¼ í•¨ì„ ì•Œì•„ ë‘시기 ë°”ëžë‹ˆë‹¤. 무엇보다ë„, ì˜ì¡´ì„±
순서 ê·œì¹™ì˜ ì˜ë„는 쓰기 ìž‘ì—…ì„ -예방- 해서 그로 ì¸í•´ ë°œìƒí•˜ëŠ” 비싼 ìºì‹œ 미스ë„
없애려는 것입니다. ì´ íŒ¨í„´ì€ ë“œë¬¼ê²Œ ë°œìƒí•˜ëŠ” ì—러 ì¡°ê±´ ê°™ì€ê²ƒë“¤ì„ 기ë¡í•˜ëŠ”ë°
-ì‚¬ìš©ë  ìˆ˜ 있고, ì´ë ‡ê²Œ 배리어를 사용해 순서를 지키게 í•¨ìœ¼ë¡œì¨ ê·¸ëŸ° 기ë¡ì´
-사ë¼ì§€ëŠ” ê²ƒì„ ë§‰ìŠµë‹ˆë‹¤.
-
-
-[!] ìƒë‹¹ížˆ 비ì§ê´€ì ì¸ ì´ ìƒí™©ì€ ë¶„ë¦¬ëœ ìºì‹œë¥¼ 가진 기계, 예를 들어 한 ìºì‹œ
-ë±…í¬ê°€ ì§ìˆ˜ë²ˆ ìºì‹œ ë¼ì¸ì„ 처리하고 다른 ë±…í¬ëŠ” 홀수번 ìºì‹œ ë¼ì¸ì„ 처리하는 기계
-등ì—서 가장 잘 ë°œìƒí•©ë‹ˆë‹¤. í¬ì¸í„° P 는 홀수 ë²ˆí˜¸ì˜ ìºì‹œ ë¼ì¸ì— 있고, 변수 B 는
-ì§ìˆ˜ 번호 ìºì‹œ ë¼ì¸ì— 있다고 ìƒê°í•´ 봅시다. 그런 ìƒíƒœì—서 ì½ê¸° ìž‘ì—…ì„ í•˜ëŠ” CPU
-ì˜ ì§ìˆ˜ë²ˆ ë±…í¬ëŠ” í•  ì¼ì´ 쌓여 매우 ë°”ì˜ì§€ë§Œ 홀수번 ë±…í¬ëŠ” í•  ì¼ì´ 없어 아무
-ì¼ë„ 하지 않고 있었다면, í¬ì¸í„° P 는 새 ê°’ (&B) ì„, 그리고 변수 B 는 옛날 ê°’
-(2) ì„ ê°€ì§€ê³  있는 ìƒíƒœê°€ 보여질 ìˆ˜ë„ ìžˆìŠµë‹ˆë‹¤.
+ì‚¬ìš©ë  ìˆ˜ 있으며, CPUì˜ ìžì—°ì ì¸ 순서 ë³´ìž¥ì´ ê·¸ëŸ° 기ë¡ë“¤ì„ 사ë¼ì§€ì§€ 않게
+í•´ì¤ë‹ˆë‹¤.
ë°ì´í„° ì˜ì¡´ì„± 배리어는 매우 중요한ë°, 예를 들어 RCU 시스템ì—서 그렇습니다.
@@ -786,7 +792,7 @@ CPU 는 b ë¡œë¶€í„°ì˜ ë¡œë“œ 오í¼ë ˆì´ì…˜ì´ a ë¡œë¶€í„°ì˜ ë¡œë“œ 오í¼ë ˆ
ìœ„ì˜ ì½”ë“œë¥¼ 아래와 ê°™ì´ ë°”ê¿”ë²„ë¦´ 수 있습니다:
q = READ_ONCE(a);
- WRITE_ONCE(b, 1);
+ WRITE_ONCE(b, 2);
do_something_else();
ì´ë ‡ê²Œ ë˜ë©´, CPU 는 변수 'a' ë¡œë¶€í„°ì˜ ë¡œë“œì™€ 변수 'b' ë¡œì˜ ìŠ¤í† ì–´ 사ì´ì˜ 순서를
@@ -1848,8 +1854,7 @@ Mandatory ë°°ë¦¬ì–´ë“¤ì€ SMP 시스템ì—ì„œë„ UP 시스템ì—ì„œë„ SMP 효ê³
ì´ ì½”ë“œëŠ” ê°ì²´ì˜ ì—…ë°ì´íŠ¸ëœ death 마í¬ê°€ ë ˆí¼ëŸ°ìФ ì¹´ìš´í„° ê°ì†Œ ë™ìž‘
*ì „ì—* ë³´ì¼ ê²ƒì„ ë³´ìž¥í•©ë‹ˆë‹¤.
- ë” ë§Žì€ ì •ë³´ë¥¼ 위해선 Documentation/atomic_ops.txt 문서를 참고하세요.
- 어디서 ì´ê²ƒë“¤ì„ 사용해야 í• ì§€ ê¶ê¸ˆí•˜ë‹¤ë©´ "어토믹 오í¼ë ˆì´ì…˜" 서브섹션ì„
+ ë” ë§Žì€ ì •ë³´ë¥¼ 위해선 Documentation/atomic_{t,bitops}.txt 문서를
참고하세요.
@@ -1956,10 +1961,7 @@ MMIO 쓰기 배리어
ë’¤ì— ì™„ë£Œë©ë‹ˆë‹¤.
ACQUIRE 앞ì—서 ìš”ì²­ëœ ë©”ëª¨ë¦¬ 오í¼ë ˆì´ì…˜ì€ ACQUIRE 오í¼ë ˆì´ì…˜ì´ ì™„ë£Œëœ í›„ì—
- ì™„ë£Œë  ìˆ˜ 있습니다. smp_mb__before_spinlock() ë’¤ì— ACQUIRE ê°€ 실행ë˜ëŠ”
- 코드 블ë¡ì€ ë¸”ë¡ ì•žì˜ ìŠ¤í† ì–´ë¥¼ ë¸”ë¡ ë’¤ì˜ ë¡œë“œì™€ ìŠ¤í† ì–´ì— ëŒ€í•´ 순서
- 맞춥니다. ì´ê±´ smp_mb() 보다 ì™„í™”ëœ ê²ƒìž„ì„ ê¸°ì–µí•˜ì„¸ìš”! ë§Žì€ ì•„í‚¤í…ì³ì—서
- smp_mb__before_spinlock() ì€ ì‚¬ì‹¤ 아무ì¼ë„ 하지 않습니다.
+ ì™„ë£Œë  ìˆ˜ 있습니다.
(2) RELEASE 오í¼ë ˆì´ì…˜ì˜ ì˜í–¥:
@@ -2471,86 +2473,7 @@ _않습니다_.
ì „ì²´ 메모리 배리어를 ë‚´í¬í•˜ê³  ë˜ ì¼ë¶€ëŠ” ë‚´í¬í•˜ì§€ 않지만, 커ë„ì—서 ìƒë‹¹ížˆ
ì˜ì¡´ì ìœ¼ë¡œ 사용하는 기능 중 하나입니다.
-ë©”ëª¨ë¦¬ì˜ ì–´ë–¤ ìƒíƒœë¥¼ 수정하고 해당 ìƒíƒœì— 대한 (ì˜ˆì „ì˜ ë˜ëŠ” 최신ì˜) 정보를
-리턴하는 어토믹 오í¼ë ˆì´ì…˜ì€ ëª¨ë‘ SMP-ì¡°ê±´ì  ë²”ìš© 메모리 배리어(smp_mb())를
-실제 오í¼ë ˆì´ì…˜ì˜ 앞과 ë’¤ì— ë‚´í¬í•©ë‹ˆë‹¤. ì´ëŸ° 오í¼ë ˆì´ì…˜ì€ 다ìŒì˜ 것들ì„
-í¬í•¨í•©ë‹ˆë‹¤:
-
- xchg();
- atomic_xchg(); atomic_long_xchg();
- atomic_inc_return(); atomic_long_inc_return();
- atomic_dec_return(); atomic_long_dec_return();
- atomic_add_return(); atomic_long_add_return();
- atomic_sub_return(); atomic_long_sub_return();
- atomic_inc_and_test(); atomic_long_inc_and_test();
- atomic_dec_and_test(); atomic_long_dec_and_test();
- atomic_sub_and_test(); atomic_long_sub_and_test();
- atomic_add_negative(); atomic_long_add_negative();
- test_and_set_bit();
- test_and_clear_bit();
- test_and_change_bit();
-
- /* exchange ì¡°ê±´ì´ ì„±ê³µí•  때 */
- cmpxchg();
- atomic_cmpxchg(); atomic_long_cmpxchg();
- atomic_add_unless(); atomic_long_add_unless();
-
-ì´ê²ƒë“¤ì€ 메모리 배리어 효과가 필요한 ACQUIRE 부류와 RELEASE 부류 오í¼ë ˆì´ì…˜ë“¤ì„
-구현할 때, 그리고 ê°ì²´ 해제를 위해 ë ˆí¼ëŸ°ìФ 카운터를 ì¡°ì •í•  때, ì•”ë¬µì  ë©”ëª¨ë¦¬
-배리어 효과가 필요한 ê³³ ë“±ì— ì‚¬ìš©ë©ë‹ˆë‹¤.
-
-
-다ìŒì˜ 오í¼ë ˆì´ì…˜ë“¤ì€ 메모리 배리어를 ë‚´í¬í•˜ì§€ _않기_ ë•Œë¬¸ì— ë¬¸ì œê°€ ë  ìˆ˜
-있지만, RELEASE ë¶€ë¥˜ì˜ ì˜¤í¼ë ˆì´ì…˜ë“¤ê³¼ ê°™ì€ ê²ƒë“¤ì„ êµ¬í˜„í•  때 ì‚¬ìš©ë  ìˆ˜ë„
-있습니다:
-
- atomic_set();
- set_bit();
- clear_bit();
- change_bit();
-
-ì´ê²ƒë“¤ì„ 사용할 때ì—는 필요하다면 ì ì ˆí•œ (예를 들면 smp_mb__before_atomic()
-ê°™ì€) 메모리 배리어가 명시ì ìœ¼ë¡œ 함께 사용ë˜ì–´ì•¼ 합니다.
-
-
-ì•„ëž˜ì˜ ê²ƒë“¤ë„ ë©”ëª¨ë¦¬ 배리어를 ë‚´í¬í•˜ì§€ _않기_ 때문ì—, ì¼ë¶€ 환경ì—서는 (예를
-들면 smp_mb__before_atomic() ê³¼ ê°™ì€) 명시ì ì¸ 메모리 배리어 ì‚¬ìš©ì´ í•„ìš”í•©ë‹ˆë‹¤.
-
- atomic_add();
- atomic_sub();
- atomic_inc();
- atomic_dec();
-
-ì´ê²ƒë“¤ì´ 통계 ìƒì„±ì„ 위해 사용ëœë‹¤ë©´, 그리고 통계 ë°ì´í„° 사ì´ì— 관계가 존재하지
-않는다면 메모리 배리어는 필요치 ì•Šì„ ê²ë‹ˆë‹¤.
-
-ê°ì²´ì˜ ìˆ˜ëª…ì„ ê´€ë¦¬í•˜ê¸° 위해 ë ˆí¼ëŸ°ìФ 카운팅 목ì ìœ¼ë¡œ 사용ëœë‹¤ë©´, ë ˆí¼ëŸ°ìФ
-카운터는 ë½ìœ¼ë¡œ 보호ë˜ëŠ” 섹션ì—서만 ì¡°ì •ë˜ê±°ë‚˜ 호출하는 ìª½ì´ ì´ë¯¸ 충분한
-ë ˆí¼ëŸ°ìŠ¤ë¥¼ 잡고 ìžˆì„ ê²ƒì´ê¸° ë•Œë¬¸ì— ë©”ëª¨ë¦¬ 배리어는 아마 í•„ìš” ì—†ì„ ê²ë‹ˆë‹¤.
-
-만약 ì–´ë–¤ ë½ì„ 구성하기 위해 사용ëœë‹¤ë©´, ë½ ê´€ë ¨ ë™ìž‘ì€ ì¼ë°˜ì ìœ¼ë¡œ ìž‘ì—…ì„ íŠ¹ì •
-순서대로 진행해야 하므로 메모리 배리어가 필요할 수 있습니다.
-
-기본ì ìœ¼ë¡œ, ê° ì‚¬ìš©ì²˜ì—서는 메모리 배리어가 필요한지 아닌지 충분히 고려해야
-합니다.
-
-ì•„ëž˜ì˜ ì˜¤í¼ë ˆì´ì…˜ë“¤ì€ 특별한 ë½ ê´€ë ¨ ë™ìž‘들입니다:
-
- test_and_set_bit_lock();
- clear_bit_unlock();
- __clear_bit_unlock();
-
-ì´ê²ƒë“¤ì€ ACQUIRE 류와 RELEASE ë¥˜ì˜ ì˜¤í¼ë ˆì´ì…˜ë“¤ì„ 구현합니다. ë½ ê´€ë ¨ ë„구를
-구현할 때ì—는 ì´ê²ƒë“¤ì„ 좀 ë” ì„ í˜¸í•˜ëŠ” íŽ¸ì´ ë‚˜ì€ë°, ì´ê²ƒë“¤ì˜ êµ¬í˜„ì€ ë§Žì€
-아키í…ì³ì—서 최ì í™” ë  ìˆ˜ 있기 때문입니다.
-
-[!] ì´ëŸ° ìƒí™©ì— 사용할 수 있는 특수한 메모리 배리어 ë„êµ¬ë“¤ì´ ìžˆìŠµë‹ˆë‹¤ë§Œ, ì¼ë¶€
-CPU ì—서는 사용ë˜ëŠ” 어토믹 ì¸ìŠ¤íŠ¸ëŸ­ì…˜ ìžì²´ì— 메모리 배리어가 ë‚´í¬ë˜ì–´ 있어서
-어토믹 오í¼ë ˆì´ì…˜ê³¼ 메모리 배리어를 함께 사용하는 게 불필요한 ì¼ì´ ë  ìˆ˜
-있는ë°, 그런 ê²½ìš°ì— ì´ íŠ¹ìˆ˜ 메모리 배리어 ë„êµ¬ë“¤ì€ no-op ì´ ë˜ì–´ 실질ì ìœ¼ë¡œ
-아무ì¼ë„ 하지 않습니다.
-
-ë” ë§Žì€ ë‚´ìš©ì„ ìœ„í•´ì„  Documentation/atomic_ops.txt 를 참고하세요.
+ë” ë§Žì€ ë‚´ìš©ì„ ìœ„í•´ì„  Documentation/atomic_t.txt 를 참고하세요.
디바ì´ìФ 액세스
diff --git a/Documentation/translations/zh_CN/HOWTO b/Documentation/translations/zh_CN/HOWTO
index 11be075ba5fa..5f6d09edc9ac 100644
--- a/Documentation/translations/zh_CN/HOWTO
+++ b/Documentation/translations/zh_CN/HOWTO
@@ -149,9 +149,7 @@ Linux内核代ç ä¸­åŒ…嫿œ‰å¤§é‡çš„æ–‡æ¡£ã€‚这些文档对于学习如何与
æ ¸æºç çš„主目录中使用以下ä¸åŒå‘½ä»¤å°†ä¼šåˆ†åˆ«ç”ŸæˆPDFã€Postscriptã€HTML和手册
页等ä¸åŒæ ¼å¼çš„æ–‡æ¡£ï¼š
make pdfdocs
- make psdocs
make htmldocs
- make mandocs
如何æˆä¸ºå†…核开å‘者
diff --git a/Documentation/unaligned-memory-access.txt b/Documentation/unaligned-memory-access.txt
index 3f76c0c37920..51b4ff031586 100644
--- a/Documentation/unaligned-memory-access.txt
+++ b/Documentation/unaligned-memory-access.txt
@@ -1,6 +1,15 @@
+=========================
UNALIGNED MEMORY ACCESSES
=========================
+:Author: Daniel Drake <dsd@gentoo.org>,
+:Author: Johannes Berg <johannes@sipsolutions.net>
+
+:With help from: Alan Cox, Avuton Olrich, Heikki Orsila, Jan Engelhardt,
+ Kyle McMartin, Kyle Moffett, Randy Dunlap, Robert Hancock, Uli Kunitz,
+ Vadim Lobanov
+
+
Linux runs on a wide variety of architectures which have varying behaviour
when it comes to memory access. This document presents some details about
unaligned accesses, why you need to write code that doesn't cause them,
@@ -73,7 +82,7 @@ memory addresses of certain variables, etc.
Fortunately things are not too complex, as in most cases, the compiler
ensures that things will work for you. For example, take the following
-structure:
+structure::
struct foo {
u16 field1;
@@ -106,7 +115,7 @@ On a related topic, with the above considerations in mind you may observe
that you could reorder the fields in the structure in order to place fields
where padding would otherwise be inserted, and hence reduce the overall
resident memory size of structure instances. The optimal layout of the
-above example is:
+above example is::
struct foo {
u32 field2;
@@ -139,21 +148,21 @@ Code that causes unaligned access
With the above in mind, let's move onto a real life example of a function
that can cause an unaligned memory access. The following function taken
from include/linux/etherdevice.h is an optimized routine to compare two
-ethernet MAC addresses for equality.
+ethernet MAC addresses for equality::
-bool ether_addr_equal(const u8 *addr1, const u8 *addr2)
-{
-#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+ bool ether_addr_equal(const u8 *addr1, const u8 *addr2)
+ {
+ #ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
u32 fold = ((*(const u32 *)addr1) ^ (*(const u32 *)addr2)) |
((*(const u16 *)(addr1 + 4)) ^ (*(const u16 *)(addr2 + 4)));
return fold == 0;
-#else
+ #else
const u16 *a = (const u16 *)addr1;
const u16 *b = (const u16 *)addr2;
return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) == 0;
-#endif
-}
+ #endif
+ }
In the above function, when the hardware has efficient unaligned access
capability, there is no issue with this code. But when the hardware isn't
@@ -171,7 +180,8 @@ as it is a decent optimization for the cases when you can ensure alignment,
which is true almost all of the time in ethernet networking context.
-Here is another example of some code that could cause unaligned accesses:
+Here is another example of some code that could cause unaligned accesses::
+
void myfunc(u8 *data, u32 value)
{
[...]
@@ -184,6 +194,7 @@ to an address that is not evenly divisible by 4.
In summary, the 2 main scenarios where you may run into unaligned access
problems involve:
+
1. Casting variables to types of different lengths
2. Pointer arithmetic followed by access to at least 2 bytes of data
@@ -195,7 +206,7 @@ The easiest way to avoid unaligned access is to use the get_unaligned() and
put_unaligned() macros provided by the <asm/unaligned.h> header file.
Going back to an earlier example of code that potentially causes unaligned
-access:
+access::
void myfunc(u8 *data, u32 value)
{
@@ -204,7 +215,7 @@ access:
[...]
}
-To avoid the unaligned memory access, you would rewrite it as follows:
+To avoid the unaligned memory access, you would rewrite it as follows::
void myfunc(u8 *data, u32 value)
{
@@ -215,7 +226,7 @@ To avoid the unaligned memory access, you would rewrite it as follows:
}
The get_unaligned() macro works similarly. Assuming 'data' is a pointer to
-memory and you wish to avoid unaligned access, its usage is as follows:
+memory and you wish to avoid unaligned access, its usage is as follows::
u32 value = get_unaligned((u32 *) data);
@@ -245,18 +256,10 @@ For some ethernet hardware that cannot DMA to unaligned addresses like
4*n+2 or non-ethernet hardware, this can be a problem, and it is then
required to copy the incoming frame into an aligned buffer. Because this is
unnecessary on architectures that can do unaligned accesses, the code can be
-made dependent on CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS like so:
-
-#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
- skb = original skb
-#else
- skb = copy skb
-#endif
-
---
-Authors: Daniel Drake <dsd@gentoo.org>,
- Johannes Berg <johannes@sipsolutions.net>
-With help from: Alan Cox, Avuton Olrich, Heikki Orsila, Jan Engelhardt,
-Kyle McMartin, Kyle Moffett, Randy Dunlap, Robert Hancock, Uli Kunitz,
-Vadim Lobanov
+made dependent on CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS like so::
+ #ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+ skb = original skb
+ #else
+ skb = copy skb
+ #endif
diff --git a/Documentation/usb/gadget-testing.txt b/Documentation/usb/gadget-testing.txt
index fb0cc4df1765..fbc397d17e98 100644
--- a/Documentation/usb/gadget-testing.txt
+++ b/Documentation/usb/gadget-testing.txt
@@ -16,10 +16,11 @@ provided by gadgets.
13. RNDIS function
14. SERIAL function
15. SOURCESINK function
-16. UAC1 function
+16. UAC1 function (legacy implementation)
17. UAC2 function
18. UVC function
19. PRINTER function
+20. UAC1 function (new API)
1. ACM function
@@ -589,15 +590,16 @@ device: run the gadget
host: test-usb (tools/usb/testusb.c)
-16. UAC1 function
+16. UAC1 function (legacy implementation)
=================
-The function is provided by usb_f_uac1.ko module.
+The function is provided by usb_f_uac1_legacy.ko module.
Function-specific configfs interface
------------------------------------
-The function name to use when creating the function directory is "uac1".
+The function name to use when creating the function directory
+is "uac1_legacy".
The uac1 function provides these attributes in its function directory:
audio_buf_size - audio buffer size
@@ -772,3 +774,46 @@ host:
More advanced testing can be done with the prn_example
described in Documentation/usb/gadget-printer.txt.
+
+
+20. UAC1 function (virtual ALSA card, using u_audio API)
+=================
+
+The function is provided by usb_f_uac1.ko module.
+It will create a virtual ALSA card and the audio streams are simply
+sinked to and sourced from it.
+
+Function-specific configfs interface
+------------------------------------
+
+The function name to use when creating the function directory is "uac1".
+The uac1 function provides these attributes in its function directory:
+
+ c_chmask - capture channel mask
+ c_srate - capture sampling rate
+ c_ssize - capture sample size (bytes)
+ p_chmask - playback channel mask
+ p_srate - playback sampling rate
+ p_ssize - playback sample size (bytes)
+ req_number - the number of pre-allocated request for both capture
+ and playback
+
+The attributes have sane default values.
+
+Testing the UAC1 function
+-------------------------
+
+device: run the gadget
+host: aplay -l # should list our USB Audio Gadget
+
+This function does not require real hardware support, it just
+sends a stream of audio data to/from the host. In order to
+actually hear something at the device side, a command similar
+to this must be used at the device side:
+
+$ arecord -f dat -t wav -D hw:2,0 | aplay -D hw:0,0 &
+
+e.g.:
+
+$ arecord -f dat -t wav -D hw:CARD=UAC1Gadget,DEV=0 | \
+aplay -D default:CARD=OdroidU3
diff --git a/Documentation/userspace-api/index.rst b/Documentation/userspace-api/index.rst
index a9d01b44a659..7b2eb1b7d4ca 100644
--- a/Documentation/userspace-api/index.rst
+++ b/Documentation/userspace-api/index.rst
@@ -16,6 +16,8 @@ place where this information is gathered.
.. toctree::
:maxdepth: 2
+ no_new_privs
+ seccomp_filter
unshare
.. only:: subproject and html
diff --git a/Documentation/userspace-api/no_new_privs.rst b/Documentation/userspace-api/no_new_privs.rst
new file mode 100644
index 000000000000..d060ea217ea1
--- /dev/null
+++ b/Documentation/userspace-api/no_new_privs.rst
@@ -0,0 +1,63 @@
+======================
+No New Privileges Flag
+======================
+
+The execve system call can grant a newly-started program privileges that
+its parent did not have. The most obvious examples are setuid/setgid
+programs and file capabilities. To prevent the parent program from
+gaining these privileges as well, the kernel and user code must be
+careful to prevent the parent from doing anything that could subvert the
+child. For example:
+
+ - The dynamic loader handles ``LD_*`` environment variables differently if
+ a program is setuid.
+
+ - chroot is disallowed to unprivileged processes, since it would allow
+ ``/etc/passwd`` to be replaced from the point of view of a process that
+ inherited chroot.
+
+ - The exec code has special handling for ptrace.
+
+These are all ad-hoc fixes. The ``no_new_privs`` bit (since Linux 3.5) is a
+new, generic mechanism to make it safe for a process to modify its
+execution environment in a manner that persists across execve. Any task
+can set ``no_new_privs``. Once the bit is set, it is inherited across fork,
+clone, and execve and cannot be unset. With ``no_new_privs`` set, ``execve()``
+promises not to grant the privilege to do anything that could not have
+been done without the execve call. For example, the setuid and setgid
+bits will no longer change the uid or gid; file capabilities will not
+add to the permitted set, and LSMs will not relax constraints after
+execve.
+
+To set ``no_new_privs``, use::
+
+ prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+
+Be careful, though: LSMs might also not tighten constraints on exec
+in ``no_new_privs`` mode. (This means that setting up a general-purpose
+service launcher to set ``no_new_privs`` before execing daemons may
+interfere with LSM-based sandboxing.)
+
+Note that ``no_new_privs`` does not prevent privilege changes that do not
+involve ``execve()``. An appropriately privileged task can still call
+``setuid(2)`` and receive SCM_RIGHTS datagrams.
+
+There are two main use cases for ``no_new_privs`` so far:
+
+ - Filters installed for the seccomp mode 2 sandbox persist across
+ execve and can change the behavior of newly-executed programs.
+ Unprivileged users are therefore only allowed to install such filters
+ if ``no_new_privs`` is set.
+
+ - By itself, ``no_new_privs`` can be used to reduce the attack surface
+ available to an unprivileged user. If everything running with a
+ given uid has ``no_new_privs`` set, then that uid will be unable to
+ escalate its privileges by directly attacking setuid, setgid, and
+ fcap-using binaries; it will need to compromise something without the
+ ``no_new_privs`` bit set first.
+
+In the future, other potentially dangerous kernel features could become
+available to unprivileged tasks if ``no_new_privs`` is set. In principle,
+several options to ``unshare(2)`` and ``clone(2)`` would be safe when
+``no_new_privs`` is set, and ``no_new_privs`` + ``chroot`` is considerable less
+dangerous than chroot by itself.
diff --git a/Documentation/userspace-api/seccomp_filter.rst b/Documentation/userspace-api/seccomp_filter.rst
new file mode 100644
index 000000000000..099c412951d6
--- /dev/null
+++ b/Documentation/userspace-api/seccomp_filter.rst
@@ -0,0 +1,277 @@
+===========================================
+Seccomp BPF (SECure COMPuting with filters)
+===========================================
+
+Introduction
+============
+
+A large number of system calls are exposed to every userland process
+with many of them going unused for the entire lifetime of the process.
+As system calls change and mature, bugs are found and eradicated. A
+certain subset of userland applications benefit by having a reduced set
+of available system calls. The resulting set reduces the total kernel
+surface exposed to the application. System call filtering is meant for
+use with those applications.
+
+Seccomp filtering provides a means for a process to specify a filter for
+incoming system calls. The filter is expressed as a Berkeley Packet
+Filter (BPF) program, as with socket filters, except that the data
+operated on is related to the system call being made: system call
+number and the system call arguments. This allows for expressive
+filtering of system calls using a filter program language with a long
+history of being exposed to userland and a straightforward data set.
+
+Additionally, BPF makes it impossible for users of seccomp to fall prey
+to time-of-check-time-of-use (TOCTOU) attacks that are common in system
+call interposition frameworks. BPF programs may not dereference
+pointers which constrains all filters to solely evaluating the system
+call arguments directly.
+
+What it isn't
+=============
+
+System call filtering isn't a sandbox. It provides a clearly defined
+mechanism for minimizing the exposed kernel surface. It is meant to be
+a tool for sandbox developers to use. Beyond that, policy for logical
+behavior and information flow should be managed with a combination of
+other system hardening techniques and, potentially, an LSM of your
+choosing. Expressive, dynamic filters provide further options down this
+path (avoiding pathological sizes or selecting which of the multiplexed
+system calls in socketcall() is allowed, for instance) which could be
+construed, incorrectly, as a more complete sandboxing solution.
+
+Usage
+=====
+
+An additional seccomp mode is added and is enabled using the same
+prctl(2) call as the strict seccomp. If the architecture has
+``CONFIG_HAVE_ARCH_SECCOMP_FILTER``, then filters may be added as below:
+
+``PR_SET_SECCOMP``:
+ Now takes an additional argument which specifies a new filter
+ using a BPF program.
+ The BPF program will be executed over struct seccomp_data
+ reflecting the system call number, arguments, and other
+ metadata. The BPF program must then return one of the
+ acceptable values to inform the kernel which action should be
+ taken.
+
+ Usage::
+
+ prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, prog);
+
+ The 'prog' argument is a pointer to a struct sock_fprog which
+ will contain the filter program. If the program is invalid, the
+ call will return -1 and set errno to ``EINVAL``.
+
+ If ``fork``/``clone`` and ``execve`` are allowed by @prog, any child
+ processes will be constrained to the same filters and system
+ call ABI as the parent.
+
+ Prior to use, the task must call ``prctl(PR_SET_NO_NEW_PRIVS, 1)`` or
+ run with ``CAP_SYS_ADMIN`` privileges in its namespace. If these are not
+ true, ``-EACCES`` will be returned. This requirement ensures that filter
+ programs cannot be applied to child processes with greater privileges
+ than the task that installed them.
+
+ Additionally, if ``prctl(2)`` is allowed by the attached filter,
+ additional filters may be layered on which will increase evaluation
+ time, but allow for further decreasing the attack surface during
+ execution of a process.
+
+The above call returns 0 on success and non-zero on error.
+
+Return values
+=============
+
+A seccomp filter may return any of the following values. If multiple
+filters exist, the return value for the evaluation of a given system
+call will always use the highest precedent value. (For example,
+``SECCOMP_RET_KILL_PROCESS`` will always take precedence.)
+
+In precedence order, they are:
+
+``SECCOMP_RET_KILL_PROCESS``:
+ Results in the entire process exiting immediately without executing
+ the system call. The exit status of the task (``status & 0x7f``)
+ will be ``SIGSYS``, not ``SIGKILL``.
+
+``SECCOMP_RET_KILL_THREAD``:
+ Results in the task exiting immediately without executing the
+ system call. The exit status of the task (``status & 0x7f``) will
+ be ``SIGSYS``, not ``SIGKILL``.
+
+``SECCOMP_RET_TRAP``:
+ Results in the kernel sending a ``SIGSYS`` signal to the triggering
+ task without executing the system call. ``siginfo->si_call_addr``
+ will show the address of the system call instruction, and
+ ``siginfo->si_syscall`` and ``siginfo->si_arch`` will indicate which
+ syscall was attempted. The program counter will be as though
+ the syscall happened (i.e. it will not point to the syscall
+ instruction). The return value register will contain an arch-
+ dependent value -- if resuming execution, set it to something
+ sensible. (The architecture dependency is because replacing
+ it with ``-ENOSYS`` could overwrite some useful information.)
+
+ The ``SECCOMP_RET_DATA`` portion of the return value will be passed
+ as ``si_errno``.
+
+ ``SIGSYS`` triggered by seccomp will have a si_code of ``SYS_SECCOMP``.
+
+``SECCOMP_RET_ERRNO``:
+ Results in the lower 16-bits of the return value being passed
+ to userland as the errno without executing the system call.
+
+``SECCOMP_RET_TRACE``:
+ When returned, this value will cause the kernel to attempt to
+ notify a ``ptrace()``-based tracer prior to executing the system
+ call. If there is no tracer present, ``-ENOSYS`` is returned to
+ userland and the system call is not executed.
+
+ A tracer will be notified if it requests ``PTRACE_O_TRACESECCOM``P
+ using ``ptrace(PTRACE_SETOPTIONS)``. The tracer will be notified
+ of a ``PTRACE_EVENT_SECCOMP`` and the ``SECCOMP_RET_DATA`` portion of
+ the BPF program return value will be available to the tracer
+ via ``PTRACE_GETEVENTMSG``.
+
+ The tracer can skip the system call by changing the syscall number
+ to -1. Alternatively, the tracer can change the system call
+ requested by changing the system call to a valid syscall number. If
+ the tracer asks to skip the system call, then the system call will
+ appear to return the value that the tracer puts in the return value
+ register.
+
+ The seccomp check will not be run again after the tracer is
+ notified. (This means that seccomp-based sandboxes MUST NOT
+ allow use of ptrace, even of other sandboxed processes, without
+ extreme care; ptracers can use this mechanism to escape.)
+
+``SECCOMP_RET_LOG``:
+ Results in the system call being executed after it is logged. This
+ should be used by application developers to learn which syscalls their
+ application needs without having to iterate through multiple test and
+ development cycles to build the list.
+
+ This action will only be logged if "log" is present in the
+ actions_logged sysctl string.
+
+``SECCOMP_RET_ALLOW``:
+ Results in the system call being executed.
+
+If multiple filters exist, the return value for the evaluation of a
+given system call will always use the highest precedent value.
+
+Precedence is only determined using the ``SECCOMP_RET_ACTION`` mask. When
+multiple filters return values of the same precedence, only the
+``SECCOMP_RET_DATA`` from the most recently installed filter will be
+returned.
+
+Pitfalls
+========
+
+The biggest pitfall to avoid during use is filtering on system call
+number without checking the architecture value. Why? On any
+architecture that supports multiple system call invocation conventions,
+the system call numbers may vary based on the specific invocation. If
+the numbers in the different calling conventions overlap, then checks in
+the filters may be abused. Always check the arch value!
+
+Example
+=======
+
+The ``samples/seccomp/`` directory contains both an x86-specific example
+and a more generic example of a higher level macro interface for BPF
+program generation.
+
+Sysctls
+=======
+
+Seccomp's sysctl files can be found in the ``/proc/sys/kernel/seccomp/``
+directory. Here's a description of each file in that directory:
+
+``actions_avail``:
+ A read-only ordered list of seccomp return values (refer to the
+ ``SECCOMP_RET_*`` macros above) in string form. The ordering, from
+ left-to-right, is the least permissive return value to the most
+ permissive return value.
+
+ The list represents the set of seccomp return values supported
+ by the kernel. A userspace program may use this list to
+ determine if the actions found in the ``seccomp.h``, when the
+ program was built, differs from the set of actions actually
+ supported in the current running kernel.
+
+``actions_logged``:
+ A read-write ordered list of seccomp return values (refer to the
+ ``SECCOMP_RET_*`` macros above) that are allowed to be logged. Writes
+ to the file do not need to be in ordered form but reads from the file
+ will be ordered in the same way as the actions_avail sysctl.
+
+ It is important to note that the value of ``actions_logged`` does not
+ prevent certain actions from being logged when the audit subsystem is
+ configured to audit a task. If the action is not found in
+ ``actions_logged`` list, the final decision on whether to audit the
+ action for that task is ultimately left up to the audit subsystem to
+ decide for all seccomp return values other than ``SECCOMP_RET_ALLOW``.
+
+ The ``allow`` string is not accepted in the ``actions_logged`` sysctl
+ as it is not possible to log ``SECCOMP_RET_ALLOW`` actions. Attempting
+ to write ``allow`` to the sysctl will result in an EINVAL being
+ returned.
+
+Adding architecture support
+===========================
+
+See ``arch/Kconfig`` for the authoritative requirements. In general, if an
+architecture supports both ptrace_event and seccomp, it will be able to
+support seccomp filter with minor fixup: ``SIGSYS`` support and seccomp return
+value checking. Then it must just add ``CONFIG_HAVE_ARCH_SECCOMP_FILTER``
+to its arch-specific Kconfig.
+
+
+
+Caveats
+=======
+
+The vDSO can cause some system calls to run entirely in userspace,
+leading to surprises when you run programs on different machines that
+fall back to real syscalls. To minimize these surprises on x86, make
+sure you test with
+``/sys/devices/system/clocksource/clocksource0/current_clocksource`` set to
+something like ``acpi_pm``.
+
+On x86-64, vsyscall emulation is enabled by default. (vsyscalls are
+legacy variants on vDSO calls.) Currently, emulated vsyscalls will
+honor seccomp, with a few oddities:
+
+- A return value of ``SECCOMP_RET_TRAP`` will set a ``si_call_addr`` pointing to
+ the vsyscall entry for the given call and not the address after the
+ 'syscall' instruction. Any code which wants to restart the call
+ should be aware that (a) a ret instruction has been emulated and (b)
+ trying to resume the syscall will again trigger the standard vsyscall
+ emulation security checks, making resuming the syscall mostly
+ pointless.
+
+- A return value of ``SECCOMP_RET_TRACE`` will signal the tracer as usual,
+ but the syscall may not be changed to another system call using the
+ orig_rax register. It may only be changed to -1 order to skip the
+ currently emulated call. Any other change MAY terminate the process.
+ The rip value seen by the tracer will be the syscall entry address;
+ this is different from normal behavior. The tracer MUST NOT modify
+ rip or rsp. (Do not rely on other changes terminating the process.
+ They might work. For example, on some kernels, choosing a syscall
+ that only exists in future kernels will be correctly emulated (by
+ returning ``-ENOSYS``).
+
+To detect this quirky behavior, check for ``addr & ~0x0C00 ==
+0xFFFFFFFFFF600000``. (For ``SECCOMP_RET_TRACE``, use rip. For
+``SECCOMP_RET_TRAP``, use ``siginfo->si_call_addr``.) Do not check any other
+condition: future kernels may improve vsyscall emulation and current
+kernels in vsyscall=native mode will behave differently, but the
+instructions at ``0xF...F600{0,4,8,C}00`` will not be system calls in these
+cases.
+
+Note that modern systems are unlikely to use vsyscalls at all -- they
+are a legacy feature and they are considerably slower than standard
+syscalls. New code will use the vDSO, and vDSO-issued system calls
+are indistinguishable from normal system calls.
diff --git a/Documentation/userspace-api/unshare.rst b/Documentation/userspace-api/unshare.rst
index 737c192cf4e7..877e90a35238 100644
--- a/Documentation/userspace-api/unshare.rst
+++ b/Documentation/userspace-api/unshare.rst
@@ -107,7 +107,7 @@ the benefits of this new feature can exceed its cost.
unshare() reverses sharing that was done using clone(2) system call,
so unshare() should have a similar interface as clone(2). That is,
-since flags in clone(int flags, void *stack) specifies what should
+since flags in clone(int flags, void \*stack) specifies what should
be shared, similar flags in unshare(int flags) should specify
what should be unshared. Unfortunately, this may appear to invert
the meaning of the flags from the way they are used in clone(2).
diff --git a/Documentation/vfio-mediated-device.txt b/Documentation/vfio-mediated-device.txt
index e5e57b40f8af..1b3950346532 100644
--- a/Documentation/vfio-mediated-device.txt
+++ b/Documentation/vfio-mediated-device.txt
@@ -1,14 +1,17 @@
-/*
- * VFIO Mediated devices
- *
- * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
- * Author: Neo Jia <cjia@nvidia.com>
- * Kirti Wankhede <kwankhede@nvidia.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
+.. include:: <isonum.txt>
+
+=====================
+VFIO Mediated devices
+=====================
+
+:Copyright: |copy| 2016, NVIDIA CORPORATION. All rights reserved.
+:Author: Neo Jia <cjia@nvidia.com>
+:Author: Kirti Wankhede <kwankhede@nvidia.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License version 2 as
+published by the Free Software Foundation.
+
Virtual Function I/O (VFIO) Mediated devices[1]
===============================================
@@ -42,7 +45,7 @@ removes it from a VFIO group.
The following high-level block diagram shows the main components and interfaces
in the VFIO mediated driver framework. The diagram shows NVIDIA, Intel, and IBM
-devices as examples, as these devices are the first devices to use this module.
+devices as examples, as these devices are the first devices to use this module::
+---------------+
| |
@@ -91,7 +94,7 @@ Registration Interface for a Mediated Bus Driver
------------------------------------------------
The registration interface for a mediated bus driver provides the following
-structure to represent a mediated device's driver:
+structure to represent a mediated device's driver::
/*
* struct mdev_driver [2] - Mediated device's driver
@@ -110,14 +113,14 @@ structure to represent a mediated device's driver:
A mediated bus driver for mdev should use this structure in the function calls
to register and unregister itself with the core driver:
-* Register:
+* Register::
- extern int mdev_register_driver(struct mdev_driver *drv,
+ extern int mdev_register_driver(struct mdev_driver *drv,
struct module *owner);
-* Unregister:
+* Unregister::
- extern void mdev_unregister_driver(struct mdev_driver *drv);
+ extern void mdev_unregister_driver(struct mdev_driver *drv);
The mediated bus driver is responsible for adding mediated devices to the VFIO
group when devices are bound to the driver and removing mediated devices from
@@ -152,15 +155,15 @@ The callbacks in the mdev_parent_ops structure are as follows:
* mmap: mmap emulation callback
A driver should use the mdev_parent_ops structure in the function call to
-register itself with the mdev core driver:
+register itself with the mdev core driver::
-extern int mdev_register_device(struct device *dev,
- const struct mdev_parent_ops *ops);
+ extern int mdev_register_device(struct device *dev,
+ const struct mdev_parent_ops *ops);
However, the mdev_parent_ops structure is not required in the function call
-that a driver should use to unregister itself with the mdev core driver:
+that a driver should use to unregister itself with the mdev core driver::
-extern void mdev_unregister_device(struct device *dev);
+ extern void mdev_unregister_device(struct device *dev);
Mediated Device Management Interface Through sysfs
@@ -183,30 +186,32 @@ with the mdev core driver.
Directories and files under the sysfs for Each Physical Device
--------------------------------------------------------------
-|- [parent physical device]
-|--- Vendor-specific-attributes [optional]
-|--- [mdev_supported_types]
-| |--- [<type-id>]
-| | |--- create
-| | |--- name
-| | |--- available_instances
-| | |--- device_api
-| | |--- description
-| | |--- [devices]
-| |--- [<type-id>]
-| | |--- create
-| | |--- name
-| | |--- available_instances
-| | |--- device_api
-| | |--- description
-| | |--- [devices]
-| |--- [<type-id>]
-| |--- create
-| |--- name
-| |--- available_instances
-| |--- device_api
-| |--- description
-| |--- [devices]
+::
+
+ |- [parent physical device]
+ |--- Vendor-specific-attributes [optional]
+ |--- [mdev_supported_types]
+ | |--- [<type-id>]
+ | | |--- create
+ | | |--- name
+ | | |--- available_instances
+ | | |--- device_api
+ | | |--- description
+ | | |--- [devices]
+ | |--- [<type-id>]
+ | | |--- create
+ | | |--- name
+ | | |--- available_instances
+ | | |--- device_api
+ | | |--- description
+ | | |--- [devices]
+ | |--- [<type-id>]
+ | |--- create
+ | |--- name
+ | |--- available_instances
+ | |--- device_api
+ | |--- description
+ | |--- [devices]
* [mdev_supported_types]
@@ -219,12 +224,12 @@ Directories and files under the sysfs for Each Physical Device
The [<type-id>] name is created by adding the device driver string as a prefix
to the string provided by the vendor driver. This format of this name is as
- follows:
+ follows::
sprintf(buf, "%s-%s", dev_driver_string(parent->dev), group->name);
(or using mdev_parent_dev(mdev) to arrive at the parent device outside
- of the core mdev code)
+ of the core mdev code)
* device_api
@@ -239,7 +244,7 @@ Directories and files under the sysfs for Each Physical Device
* [device]
This directory contains links to the devices of type <type-id> that have been
-created.
+ created.
* name
@@ -253,21 +258,25 @@ created.
Directories and Files Under the sysfs for Each mdev Device
----------------------------------------------------------
-|- [parent phy device]
-|--- [$MDEV_UUID]
+::
+
+ |- [parent phy device]
+ |--- [$MDEV_UUID]
|--- remove
|--- mdev_type {link to its type}
|--- vendor-specific-attributes [optional]
* remove (write only)
+
Writing '1' to the 'remove' file destroys the mdev device. The vendor driver can
fail the remove() callback if that device is active and the vendor driver
doesn't support hot unplug.
-Example:
+Example::
+
# echo 1 > /sys/bus/mdev/devices/$mdev_UUID/remove
-Mediated device Hot plug:
+Mediated device Hot plug
------------------------
Mediated devices can be created and assigned at runtime. The procedure to hot
@@ -277,13 +286,13 @@ Translation APIs for Mediated Devices
=====================================
The following APIs are provided for translating user pfn to host pfn in a VFIO
-driver:
+driver::
-extern int vfio_pin_pages(struct device *dev, unsigned long *user_pfn,
- int npage, int prot, unsigned long *phys_pfn);
+ extern int vfio_pin_pages(struct device *dev, unsigned long *user_pfn,
+ int npage, int prot, unsigned long *phys_pfn);
-extern int vfio_unpin_pages(struct device *dev, unsigned long *user_pfn,
- int npage);
+ extern int vfio_unpin_pages(struct device *dev, unsigned long *user_pfn,
+ int npage);
These functions call back into the back-end IOMMU module by using the pin_pages
and unpin_pages callbacks of the struct vfio_iommu_driver_ops[4]. Currently
@@ -304,81 +313,80 @@ card.
This step creates a dummy device, /sys/devices/virtual/mtty/mtty/
- Files in this device directory in sysfs are similar to the following:
-
- # tree /sys/devices/virtual/mtty/mtty/
- /sys/devices/virtual/mtty/mtty/
- |-- mdev_supported_types
- | |-- mtty-1
- | | |-- available_instances
- | | |-- create
- | | |-- device_api
- | | |-- devices
- | | `-- name
- | `-- mtty-2
- | |-- available_instances
- | |-- create
- | |-- device_api
- | |-- devices
- | `-- name
- |-- mtty_dev
- | `-- sample_mtty_dev
- |-- power
- | |-- autosuspend_delay_ms
- | |-- control
- | |-- runtime_active_time
- | |-- runtime_status
- | `-- runtime_suspended_time
- |-- subsystem -> ../../../../class/mtty
- `-- uevent
+ Files in this device directory in sysfs are similar to the following::
+
+ # tree /sys/devices/virtual/mtty/mtty/
+ /sys/devices/virtual/mtty/mtty/
+ |-- mdev_supported_types
+ | |-- mtty-1
+ | | |-- available_instances
+ | | |-- create
+ | | |-- device_api
+ | | |-- devices
+ | | `-- name
+ | `-- mtty-2
+ | |-- available_instances
+ | |-- create
+ | |-- device_api
+ | |-- devices
+ | `-- name
+ |-- mtty_dev
+ | `-- sample_mtty_dev
+ |-- power
+ | |-- autosuspend_delay_ms
+ | |-- control
+ | |-- runtime_active_time
+ | |-- runtime_status
+ | `-- runtime_suspended_time
+ |-- subsystem -> ../../../../class/mtty
+ `-- uevent
2. Create a mediated device by using the dummy device that you created in the
- previous step.
+ previous step::
- # echo "83b8f4f2-509f-382f-3c1e-e6bfe0fa1001" > \
+ # echo "83b8f4f2-509f-382f-3c1e-e6bfe0fa1001" > \
/sys/devices/virtual/mtty/mtty/mdev_supported_types/mtty-2/create
-3. Add parameters to qemu-kvm.
+3. Add parameters to qemu-kvm::
- -device vfio-pci,\
- sysfsdev=/sys/bus/mdev/devices/83b8f4f2-509f-382f-3c1e-e6bfe0fa1001
+ -device vfio-pci,\
+ sysfsdev=/sys/bus/mdev/devices/83b8f4f2-509f-382f-3c1e-e6bfe0fa1001
4. Boot the VM.
In the Linux guest VM, with no hardware on the host, the device appears
- as follows:
-
- # lspci -s 00:05.0 -xxvv
- 00:05.0 Serial controller: Device 4348:3253 (rev 10) (prog-if 02 [16550])
- Subsystem: Device 4348:3253
- Physical Slot: 5
- Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
- Stepping- SERR- FastB2B- DisINTx-
- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
- <TAbort- <MAbort- >SERR- <PERR- INTx-
- Interrupt: pin A routed to IRQ 10
- Region 0: I/O ports at c150 [size=8]
- Region 1: I/O ports at c158 [size=8]
- Kernel driver in use: serial
- 00: 48 43 53 32 01 00 00 02 10 02 00 07 00 00 00 00
- 10: 51 c1 00 00 59 c1 00 00 00 00 00 00 00 00 00 00
- 20: 00 00 00 00 00 00 00 00 00 00 00 00 48 43 53 32
- 30: 00 00 00 00 00 00 00 00 00 00 00 00 0a 01 00 00
-
- In the Linux guest VM, dmesg output for the device is as follows:
-
- serial 0000:00:05.0: PCI INT A -> Link[LNKA] -> GSI 10 (level, high) -> IRQ
-10
- 0000:00:05.0: ttyS1 at I/O 0xc150 (irq = 10) is a 16550A
- 0000:00:05.0: ttyS2 at I/O 0xc158 (irq = 10) is a 16550A
-
-
-5. In the Linux guest VM, check the serial ports.
-
- # setserial -g /dev/ttyS*
- /dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4
- /dev/ttyS1, UART: 16550A, Port: 0xc150, IRQ: 10
- /dev/ttyS2, UART: 16550A, Port: 0xc158, IRQ: 10
+ as follows::
+
+ # lspci -s 00:05.0 -xxvv
+ 00:05.0 Serial controller: Device 4348:3253 (rev 10) (prog-if 02 [16550])
+ Subsystem: Device 4348:3253
+ Physical Slot: 5
+ Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
+ Stepping- SERR- FastB2B- DisINTx-
+ Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
+ <TAbort- <MAbort- >SERR- <PERR- INTx-
+ Interrupt: pin A routed to IRQ 10
+ Region 0: I/O ports at c150 [size=8]
+ Region 1: I/O ports at c158 [size=8]
+ Kernel driver in use: serial
+ 00: 48 43 53 32 01 00 00 02 10 02 00 07 00 00 00 00
+ 10: 51 c1 00 00 59 c1 00 00 00 00 00 00 00 00 00 00
+ 20: 00 00 00 00 00 00 00 00 00 00 00 00 48 43 53 32
+ 30: 00 00 00 00 00 00 00 00 00 00 00 00 0a 01 00 00
+
+ In the Linux guest VM, dmesg output for the device is as follows:
+
+ serial 0000:00:05.0: PCI INT A -> Link[LNKA] -> GSI 10 (level, high) -> IRQ 10
+ 0000:00:05.0: ttyS1 at I/O 0xc150 (irq = 10) is a 16550A
+ 0000:00:05.0: ttyS2 at I/O 0xc158 (irq = 10) is a 16550A
+
+
+5. In the Linux guest VM, check the serial ports::
+
+ # setserial -g /dev/ttyS*
+ /dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4
+ /dev/ttyS1, UART: 16550A, Port: 0xc150, IRQ: 10
+ /dev/ttyS2, UART: 16550A, Port: 0xc158, IRQ: 10
6. Using minicom or any terminal emulation program, open port /dev/ttyS1 or
/dev/ttyS2 with hardware flow control disabled.
@@ -388,14 +396,14 @@ card.
Data is loop backed from hosts mtty driver.
-8. Destroy the mediated device that you created.
+8. Destroy the mediated device that you created::
- # echo 1 > /sys/bus/mdev/devices/83b8f4f2-509f-382f-3c1e-e6bfe0fa1001/remove
+ # echo 1 > /sys/bus/mdev/devices/83b8f4f2-509f-382f-3c1e-e6bfe0fa1001/remove
References
==========
-[1] See Documentation/vfio.txt for more information on VFIO.
-[2] struct mdev_driver in include/linux/mdev.h
-[3] struct mdev_parent_ops in include/linux/mdev.h
-[4] struct vfio_iommu_driver_ops in include/linux/vfio.h
+1. See Documentation/vfio.txt for more information on VFIO.
+2. struct mdev_driver in include/linux/mdev.h
+3. struct mdev_parent_ops in include/linux/mdev.h
+4. struct vfio_iommu_driver_ops in include/linux/vfio.h
diff --git a/Documentation/vfio.txt b/Documentation/vfio.txt
index 1dd3fddfd3a1..ef6a5111eaa1 100644
--- a/Documentation/vfio.txt
+++ b/Documentation/vfio.txt
@@ -1,5 +1,7 @@
-VFIO - "Virtual Function I/O"[1]
--------------------------------------------------------------------------------
+==================================
+VFIO - "Virtual Function I/O" [1]_
+==================================
+
Many modern system now provide DMA and interrupt remapping facilities
to help ensure I/O devices behave within the boundaries they've been
allotted. This includes x86 hardware with AMD-Vi and Intel VT-d,
@@ -7,14 +9,14 @@ POWER systems with Partitionable Endpoints (PEs) and embedded PowerPC
systems such as Freescale PAMU. The VFIO driver is an IOMMU/device
agnostic framework for exposing direct device access to userspace, in
a secure, IOMMU protected environment. In other words, this allows
-safe[2], non-privileged, userspace drivers.
+safe [2]_, non-privileged, userspace drivers.
Why do we want that? Virtual machines often make use of direct device
access ("device assignment") when configured for the highest possible
I/O performance. From a device and host perspective, this simply
turns the VM into a userspace driver, with the benefits of
significantly reduced latency, higher bandwidth, and direct use of
-bare-metal device drivers[3].
+bare-metal device drivers [3]_.
Some applications, particularly in the high performance computing
field, also benefit from low-overhead, direct device access from
@@ -31,7 +33,7 @@ KVM PCI specific device assignment code as well as provide a more
secure, more featureful userspace driver environment than UIO.
Groups, Devices, and IOMMUs
--------------------------------------------------------------------------------
+---------------------------
Devices are the main target of any I/O driver. Devices typically
create a programming interface made up of I/O access, interrupts,
@@ -114,40 +116,40 @@ well as mechanisms for describing and registering interrupt
notifications.
VFIO Usage Example
--------------------------------------------------------------------------------
+------------------
-Assume user wants to access PCI device 0000:06:0d.0
+Assume user wants to access PCI device 0000:06:0d.0::
-$ readlink /sys/bus/pci/devices/0000:06:0d.0/iommu_group
-../../../../kernel/iommu_groups/26
+ $ readlink /sys/bus/pci/devices/0000:06:0d.0/iommu_group
+ ../../../../kernel/iommu_groups/26
This device is therefore in IOMMU group 26. This device is on the
pci bus, therefore the user will make use of vfio-pci to manage the
-group:
+group::
-# modprobe vfio-pci
+ # modprobe vfio-pci
Binding this device to the vfio-pci driver creates the VFIO group
-character devices for this group:
+character devices for this group::
-$ lspci -n -s 0000:06:0d.0
-06:0d.0 0401: 1102:0002 (rev 08)
-# echo 0000:06:0d.0 > /sys/bus/pci/devices/0000:06:0d.0/driver/unbind
-# echo 1102 0002 > /sys/bus/pci/drivers/vfio-pci/new_id
+ $ lspci -n -s 0000:06:0d.0
+ 06:0d.0 0401: 1102:0002 (rev 08)
+ # echo 0000:06:0d.0 > /sys/bus/pci/devices/0000:06:0d.0/driver/unbind
+ # echo 1102 0002 > /sys/bus/pci/drivers/vfio-pci/new_id
Now we need to look at what other devices are in the group to free
-it for use by VFIO:
-
-$ ls -l /sys/bus/pci/devices/0000:06:0d.0/iommu_group/devices
-total 0
-lrwxrwxrwx. 1 root root 0 Apr 23 16:13 0000:00:1e.0 ->
- ../../../../devices/pci0000:00/0000:00:1e.0
-lrwxrwxrwx. 1 root root 0 Apr 23 16:13 0000:06:0d.0 ->
- ../../../../devices/pci0000:00/0000:00:1e.0/0000:06:0d.0
-lrwxrwxrwx. 1 root root 0 Apr 23 16:13 0000:06:0d.1 ->
- ../../../../devices/pci0000:00/0000:00:1e.0/0000:06:0d.1
-
-This device is behind a PCIe-to-PCI bridge[4], therefore we also
+it for use by VFIO::
+
+ $ ls -l /sys/bus/pci/devices/0000:06:0d.0/iommu_group/devices
+ total 0
+ lrwxrwxrwx. 1 root root 0 Apr 23 16:13 0000:00:1e.0 ->
+ ../../../../devices/pci0000:00/0000:00:1e.0
+ lrwxrwxrwx. 1 root root 0 Apr 23 16:13 0000:06:0d.0 ->
+ ../../../../devices/pci0000:00/0000:00:1e.0/0000:06:0d.0
+ lrwxrwxrwx. 1 root root 0 Apr 23 16:13 0000:06:0d.1 ->
+ ../../../../devices/pci0000:00/0000:00:1e.0/0000:06:0d.1
+
+This device is behind a PCIe-to-PCI bridge [4]_, therefore we also
need to add device 0000:06:0d.1 to the group following the same
procedure as above. Device 0000:00:1e.0 is a bridge that does
not currently have a host driver, therefore it's not required to
@@ -157,12 +159,12 @@ support PCI bridges).
The final step is to provide the user with access to the group if
unprivileged operation is desired (note that /dev/vfio/vfio provides
no capabilities on its own and is therefore expected to be set to
-mode 0666 by the system).
+mode 0666 by the system)::
-# chown user:user /dev/vfio/26
+ # chown user:user /dev/vfio/26
The user now has full access to all the devices and the iommu for this
-group and can access them as follows:
+group and can access them as follows::
int container, group, device, i;
struct vfio_group_status group_status =
@@ -248,31 +250,31 @@ VFIO bus driver API
VFIO bus drivers, such as vfio-pci make use of only a few interfaces
into VFIO core. When devices are bound and unbound to the driver,
the driver should call vfio_add_group_dev() and vfio_del_group_dev()
-respectively:
+respectively::
-extern int vfio_add_group_dev(struct iommu_group *iommu_group,
- struct device *dev,
- const struct vfio_device_ops *ops,
- void *device_data);
+ extern int vfio_add_group_dev(struct iommu_group *iommu_group,
+ struct device *dev,
+ const struct vfio_device_ops *ops,
+ void *device_data);
-extern void *vfio_del_group_dev(struct device *dev);
+ extern void *vfio_del_group_dev(struct device *dev);
vfio_add_group_dev() indicates to the core to begin tracking the
specified iommu_group and register the specified dev as owned by
a VFIO bus driver. The driver provides an ops structure for callbacks
-similar to a file operations structure:
-
-struct vfio_device_ops {
- int (*open)(void *device_data);
- void (*release)(void *device_data);
- ssize_t (*read)(void *device_data, char __user *buf,
- size_t count, loff_t *ppos);
- ssize_t (*write)(void *device_data, const char __user *buf,
- size_t size, loff_t *ppos);
- long (*ioctl)(void *device_data, unsigned int cmd,
- unsigned long arg);
- int (*mmap)(void *device_data, struct vm_area_struct *vma);
-};
+similar to a file operations structure::
+
+ struct vfio_device_ops {
+ int (*open)(void *device_data);
+ void (*release)(void *device_data);
+ ssize_t (*read)(void *device_data, char __user *buf,
+ size_t count, loff_t *ppos);
+ ssize_t (*write)(void *device_data, const char __user *buf,
+ size_t size, loff_t *ppos);
+ long (*ioctl)(void *device_data, unsigned int cmd,
+ unsigned long arg);
+ int (*mmap)(void *device_data, struct vm_area_struct *vma);
+ };
Each function is passed the device_data that was originally registered
in the vfio_add_group_dev() call above. This allows the bus driver
@@ -285,50 +287,55 @@ own VFIO_DEVICE_GET_REGION_INFO ioctl.
PPC64 sPAPR implementation note
--------------------------------------------------------------------------------
+-------------------------------
This implementation has some specifics:
1) On older systems (POWER7 with P5IOC2/IODA1) only one IOMMU group per
-container is supported as an IOMMU table is allocated at the boot time,
-one table per a IOMMU group which is a Partitionable Endpoint (PE)
-(PE is often a PCI domain but not always).
-Newer systems (POWER8 with IODA2) have improved hardware design which allows
-to remove this limitation and have multiple IOMMU groups per a VFIO container.
+ container is supported as an IOMMU table is allocated at the boot time,
+ one table per a IOMMU group which is a Partitionable Endpoint (PE)
+ (PE is often a PCI domain but not always).
+
+ Newer systems (POWER8 with IODA2) have improved hardware design which allows
+ to remove this limitation and have multiple IOMMU groups per a VFIO
+ container.
2) The hardware supports so called DMA windows - the PCI address range
-within which DMA transfer is allowed, any attempt to access address space
-out of the window leads to the whole PE isolation.
+ within which DMA transfer is allowed, any attempt to access address space
+ out of the window leads to the whole PE isolation.
3) PPC64 guests are paravirtualized but not fully emulated. There is an API
-to map/unmap pages for DMA, and it normally maps 1..32 pages per call and
-currently there is no way to reduce the number of calls. In order to make things
-faster, the map/unmap handling has been implemented in real mode which provides
-an excellent performance which has limitations such as inability to do
-locked pages accounting in real time.
+ to map/unmap pages for DMA, and it normally maps 1..32 pages per call and
+ currently there is no way to reduce the number of calls. In order to make
+ things faster, the map/unmap handling has been implemented in real mode
+ which provides an excellent performance which has limitations such as
+ inability to do locked pages accounting in real time.
4) According to sPAPR specification, A Partitionable Endpoint (PE) is an I/O
-subtree that can be treated as a unit for the purposes of partitioning and
-error recovery. A PE may be a single or multi-function IOA (IO Adapter), a
-function of a multi-function IOA, or multiple IOAs (possibly including switch
-and bridge structures above the multiple IOAs). PPC64 guests detect PCI errors
-and recover from them via EEH RTAS services, which works on the basis of
-additional ioctl commands.
+ subtree that can be treated as a unit for the purposes of partitioning and
+ error recovery. A PE may be a single or multi-function IOA (IO Adapter), a
+ function of a multi-function IOA, or multiple IOAs (possibly including
+ switch and bridge structures above the multiple IOAs). PPC64 guests detect
+ PCI errors and recover from them via EEH RTAS services, which works on the
+ basis of additional ioctl commands.
-So 4 additional ioctls have been added:
+ So 4 additional ioctls have been added:
- VFIO_IOMMU_SPAPR_TCE_GET_INFO - returns the size and the start
- of the DMA window on the PCI bus.
+ VFIO_IOMMU_SPAPR_TCE_GET_INFO
+ returns the size and the start of the DMA window on the PCI bus.
- VFIO_IOMMU_ENABLE - enables the container. The locked pages accounting
+ VFIO_IOMMU_ENABLE
+ enables the container. The locked pages accounting
is done at this point. This lets user first to know what
the DMA window is and adjust rlimit before doing any real job.
- VFIO_IOMMU_DISABLE - disables the container.
+ VFIO_IOMMU_DISABLE
+ disables the container.
- VFIO_EEH_PE_OP - provides an API for EEH setup, error detection and recovery.
+ VFIO_EEH_PE_OP
+ provides an API for EEH setup, error detection and recovery.
-The code flow from the example above should be slightly changed:
+ The code flow from the example above should be slightly changed::
struct vfio_eeh_pe_op pe_op = { .argsz = sizeof(pe_op), .flags = 0 };
@@ -442,73 +449,73 @@ The code flow from the example above should be slightly changed:
....
5) There is v2 of SPAPR TCE IOMMU. It deprecates VFIO_IOMMU_ENABLE/
-VFIO_IOMMU_DISABLE and implements 2 new ioctls:
-VFIO_IOMMU_SPAPR_REGISTER_MEMORY and VFIO_IOMMU_SPAPR_UNREGISTER_MEMORY
-(which are unsupported in v1 IOMMU).
+ VFIO_IOMMU_DISABLE and implements 2 new ioctls:
+ VFIO_IOMMU_SPAPR_REGISTER_MEMORY and VFIO_IOMMU_SPAPR_UNREGISTER_MEMORY
+ (which are unsupported in v1 IOMMU).
-PPC64 paravirtualized guests generate a lot of map/unmap requests,
-and the handling of those includes pinning/unpinning pages and updating
-mm::locked_vm counter to make sure we do not exceed the rlimit.
-The v2 IOMMU splits accounting and pinning into separate operations:
+ PPC64 paravirtualized guests generate a lot of map/unmap requests,
+ and the handling of those includes pinning/unpinning pages and updating
+ mm::locked_vm counter to make sure we do not exceed the rlimit.
+ The v2 IOMMU splits accounting and pinning into separate operations:
-- VFIO_IOMMU_SPAPR_REGISTER_MEMORY/VFIO_IOMMU_SPAPR_UNREGISTER_MEMORY ioctls
-receive a user space address and size of the block to be pinned.
-Bisecting is not supported and VFIO_IOMMU_UNREGISTER_MEMORY is expected to
-be called with the exact address and size used for registering
-the memory block. The userspace is not expected to call these often.
-The ranges are stored in a linked list in a VFIO container.
+ - VFIO_IOMMU_SPAPR_REGISTER_MEMORY/VFIO_IOMMU_SPAPR_UNREGISTER_MEMORY ioctls
+ receive a user space address and size of the block to be pinned.
+ Bisecting is not supported and VFIO_IOMMU_UNREGISTER_MEMORY is expected to
+ be called with the exact address and size used for registering
+ the memory block. The userspace is not expected to call these often.
+ The ranges are stored in a linked list in a VFIO container.
-- VFIO_IOMMU_MAP_DMA/VFIO_IOMMU_UNMAP_DMA ioctls only update the actual
-IOMMU table and do not do pinning; instead these check that the userspace
-address is from pre-registered range.
+ - VFIO_IOMMU_MAP_DMA/VFIO_IOMMU_UNMAP_DMA ioctls only update the actual
+ IOMMU table and do not do pinning; instead these check that the userspace
+ address is from pre-registered range.
-This separation helps in optimizing DMA for guests.
+ This separation helps in optimizing DMA for guests.
6) sPAPR specification allows guests to have an additional DMA window(s) on
-a PCI bus with a variable page size. Two ioctls have been added to support
-this: VFIO_IOMMU_SPAPR_TCE_CREATE and VFIO_IOMMU_SPAPR_TCE_REMOVE.
-The platform has to support the functionality or error will be returned to
-the userspace. The existing hardware supports up to 2 DMA windows, one is
-2GB long, uses 4K pages and called "default 32bit window"; the other can
-be as big as entire RAM, use different page size, it is optional - guests
-create those in run-time if the guest driver supports 64bit DMA.
-
-VFIO_IOMMU_SPAPR_TCE_CREATE receives a page shift, a DMA window size and
-a number of TCE table levels (if a TCE table is going to be big enough and
-the kernel may not be able to allocate enough of physically contiguous memory).
-It creates a new window in the available slot and returns the bus address where
-the new window starts. Due to hardware limitation, the user space cannot choose
-the location of DMA windows.
-
-VFIO_IOMMU_SPAPR_TCE_REMOVE receives the bus start address of the window
-and removes it.
+ a PCI bus with a variable page size. Two ioctls have been added to support
+ this: VFIO_IOMMU_SPAPR_TCE_CREATE and VFIO_IOMMU_SPAPR_TCE_REMOVE.
+ The platform has to support the functionality or error will be returned to
+ the userspace. The existing hardware supports up to 2 DMA windows, one is
+ 2GB long, uses 4K pages and called "default 32bit window"; the other can
+ be as big as entire RAM, use different page size, it is optional - guests
+ create those in run-time if the guest driver supports 64bit DMA.
+
+ VFIO_IOMMU_SPAPR_TCE_CREATE receives a page shift, a DMA window size and
+ a number of TCE table levels (if a TCE table is going to be big enough and
+ the kernel may not be able to allocate enough of physically contiguous
+ memory). It creates a new window in the available slot and returns the bus
+ address where the new window starts. Due to hardware limitation, the user
+ space cannot choose the location of DMA windows.
+
+ VFIO_IOMMU_SPAPR_TCE_REMOVE receives the bus start address of the window
+ and removes it.
-------------------------------------------------------------------------------
-[1] VFIO was originally an acronym for "Virtual Function I/O" in its
-initial implementation by Tom Lyon while as Cisco. We've since
-outgrown the acronym, but it's catchy.
-
-[2] "safe" also depends upon a device being "well behaved". It's
-possible for multi-function devices to have backdoors between
-functions and even for single function devices to have alternative
-access to things like PCI config space through MMIO registers. To
-guard against the former we can include additional precautions in the
-IOMMU driver to group multi-function PCI devices together
-(iommu=group_mf). The latter we can't prevent, but the IOMMU should
-still provide isolation. For PCI, SR-IOV Virtual Functions are the
-best indicator of "well behaved", as these are designed for
-virtualization usage models.
-
-[3] As always there are trade-offs to virtual machine device
-assignment that are beyond the scope of VFIO. It's expected that
-future IOMMU technologies will reduce some, but maybe not all, of
-these trade-offs.
-
-[4] In this case the device is below a PCI bridge, so transactions
-from either function of the device are indistinguishable to the iommu:
-
--[0000:00]-+-1e.0-[06]--+-0d.0
- \-0d.1
-
-00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 90)
+.. [1] VFIO was originally an acronym for "Virtual Function I/O" in its
+ initial implementation by Tom Lyon while as Cisco. We've since
+ outgrown the acronym, but it's catchy.
+
+.. [2] "safe" also depends upon a device being "well behaved". It's
+ possible for multi-function devices to have backdoors between
+ functions and even for single function devices to have alternative
+ access to things like PCI config space through MMIO registers. To
+ guard against the former we can include additional precautions in the
+ IOMMU driver to group multi-function PCI devices together
+ (iommu=group_mf). The latter we can't prevent, but the IOMMU should
+ still provide isolation. For PCI, SR-IOV Virtual Functions are the
+ best indicator of "well behaved", as these are designed for
+ virtualization usage models.
+
+.. [3] As always there are trade-offs to virtual machine device
+ assignment that are beyond the scope of VFIO. It's expected that
+ future IOMMU technologies will reduce some, but maybe not all, of
+ these trade-offs.
+
+.. [4] In this case the device is below a PCI bridge, so transactions
+ from either function of the device are indistinguishable to the iommu::
+
+ -[0000:00]-+-1e.0-[06]--+-0d.0
+ \-0d.1
+
+ 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 90)
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 4029943887a3..e63a35fafef0 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -3255,6 +3255,141 @@ Otherwise, if the MCE is a corrected error, KVM will just
store it in the corresponding bank (provided this bank is
not holding a previously reported uncorrected error).
+4.107 KVM_S390_GET_CMMA_BITS
+
+Capability: KVM_CAP_S390_CMMA_MIGRATION
+Architectures: s390
+Type: vm ioctl
+Parameters: struct kvm_s390_cmma_log (in, out)
+Returns: 0 on success, a negative value on error
+
+This ioctl is used to get the values of the CMMA bits on the s390
+architecture. It is meant to be used in two scenarios:
+- During live migration to save the CMMA values. Live migration needs
+ to be enabled via the KVM_REQ_START_MIGRATION VM property.
+- To non-destructively peek at the CMMA values, with the flag
+ KVM_S390_CMMA_PEEK set.
+
+The ioctl takes parameters via the kvm_s390_cmma_log struct. The desired
+values are written to a buffer whose location is indicated via the "values"
+member in the kvm_s390_cmma_log struct. The values in the input struct are
+also updated as needed.
+Each CMMA value takes up one byte.
+
+struct kvm_s390_cmma_log {
+ __u64 start_gfn;
+ __u32 count;
+ __u32 flags;
+ union {
+ __u64 remaining;
+ __u64 mask;
+ };
+ __u64 values;
+};
+
+start_gfn is the number of the first guest frame whose CMMA values are
+to be retrieved,
+
+count is the length of the buffer in bytes,
+
+values points to the buffer where the result will be written to.
+
+If count is greater than KVM_S390_SKEYS_MAX, then it is considered to be
+KVM_S390_SKEYS_MAX. KVM_S390_SKEYS_MAX is re-used for consistency with
+other ioctls.
+
+The result is written in the buffer pointed to by the field values, and
+the values of the input parameter are updated as follows.
+
+Depending on the flags, different actions are performed. The only
+supported flag so far is KVM_S390_CMMA_PEEK.
+
+The default behaviour if KVM_S390_CMMA_PEEK is not set is:
+start_gfn will indicate the first page frame whose CMMA bits were dirty.
+It is not necessarily the same as the one passed as input, as clean pages
+are skipped.
+
+count will indicate the number of bytes actually written in the buffer.
+It can (and very often will) be smaller than the input value, since the
+buffer is only filled until 16 bytes of clean values are found (which
+are then not copied in the buffer). Since a CMMA migration block needs
+the base address and the length, for a total of 16 bytes, we will send
+back some clean data if there is some dirty data afterwards, as long as
+the size of the clean data does not exceed the size of the header. This
+allows to minimize the amount of data to be saved or transferred over
+the network at the expense of more roundtrips to userspace. The next
+invocation of the ioctl will skip over all the clean values, saving
+potentially more than just the 16 bytes we found.
+
+If KVM_S390_CMMA_PEEK is set:
+the existing storage attributes are read even when not in migration
+mode, and no other action is performed;
+
+the output start_gfn will be equal to the input start_gfn,
+
+the output count will be equal to the input count, except if the end of
+memory has been reached.
+
+In both cases:
+the field "remaining" will indicate the total number of dirty CMMA values
+still remaining, or 0 if KVM_S390_CMMA_PEEK is set and migration mode is
+not enabled.
+
+mask is unused.
+
+values points to the userspace buffer where the result will be stored.
+
+This ioctl can fail with -ENOMEM if not enough memory can be allocated to
+complete the task, with -ENXIO if CMMA is not enabled, with -EINVAL if
+KVM_S390_CMMA_PEEK is not set but migration mode was not enabled, with
+-EFAULT if the userspace address is invalid or if no page table is
+present for the addresses (e.g. when using hugepages).
+
+4.108 KVM_S390_SET_CMMA_BITS
+
+Capability: KVM_CAP_S390_CMMA_MIGRATION
+Architectures: s390
+Type: vm ioctl
+Parameters: struct kvm_s390_cmma_log (in)
+Returns: 0 on success, a negative value on error
+
+This ioctl is used to set the values of the CMMA bits on the s390
+architecture. It is meant to be used during live migration to restore
+the CMMA values, but there are no restrictions on its use.
+The ioctl takes parameters via the kvm_s390_cmma_values struct.
+Each CMMA value takes up one byte.
+
+struct kvm_s390_cmma_log {
+ __u64 start_gfn;
+ __u32 count;
+ __u32 flags;
+ union {
+ __u64 remaining;
+ __u64 mask;
+ };
+ __u64 values;
+};
+
+start_gfn indicates the starting guest frame number,
+
+count indicates how many values are to be considered in the buffer,
+
+flags is not used and must be 0.
+
+mask indicates which PGSTE bits are to be considered.
+
+remaining is not used.
+
+values points to the buffer in userspace where to store the values.
+
+This ioctl can fail with -ENOMEM if not enough memory can be allocated to
+complete the task, with -ENXIO if CMMA is not enabled, with -EINVAL if
+the count field is too large (e.g. more than KVM_S390_CMMA_SIZE_MAX) or
+if the flags field was not 0, with -EFAULT if the userspace address is
+invalid, if invalid pages are written to (e.g. after the end of memory)
+or if no page table is present for the addresses (e.g. when using
+hugepages).
+
5. The kvm_run structure
------------------------
@@ -3996,6 +4131,34 @@ Parameters: none
Allow use of adapter-interruption suppression.
Returns: 0 on success; -EBUSY if a VCPU has already been created.
+7.11 KVM_CAP_PPC_SMT
+
+Architectures: ppc
+Parameters: vsmt_mode, flags
+
+Enabling this capability on a VM provides userspace with a way to set
+the desired virtual SMT mode (i.e. the number of virtual CPUs per
+virtual core). The virtual SMT mode, vsmt_mode, must be a power of 2
+between 1 and 8. On POWER8, vsmt_mode must also be no greater than
+the number of threads per subcore for the host. Currently flags must
+be 0. A successful call to enable this capability will result in
+vsmt_mode being returned when the KVM_CAP_PPC_SMT capability is
+subsequently queried for the VM. This capability is only supported by
+HV KVM, and can only be set before any VCPUs have been created.
+The KVM_CAP_PPC_SMT_POSSIBLE capability indicates which virtual SMT
+modes are available.
+
+7.12 KVM_CAP_PPC_FWNMI
+
+Architectures: ppc
+Parameters: none
+
+With this capability a machine check exception in the guest address
+space will cause KVM to exit the guest with NMI exit reason. This
+enables QEMU to build error log and branch to guest kernel registered
+machine check handling routine. Without this capability KVM will
+branch to guests' 0x200 interrupt vector.
+
8. Other capabilities.
----------------------
@@ -4157,3 +4320,30 @@ Currently the following bits are defined for the device_irq_level bitmap:
Future versions of kvm may implement additional events. These will get
indicated by returning a higher number from KVM_CHECK_EXTENSION and will be
listed above.
+
+8.10 KVM_CAP_PPC_SMT_POSSIBLE
+
+Architectures: ppc
+
+Querying this capability returns a bitmap indicating the possible
+virtual SMT modes that can be set using KVM_CAP_PPC_SMT. If bit N
+(counting from the right) is set, then a virtual SMT mode of 2^N is
+available.
+
+8.11 KVM_CAP_HYPERV_SYNIC2
+
+Architectures: x86
+
+This capability enables a newer version of Hyper-V Synthetic interrupt
+controller (SynIC). The only difference with KVM_CAP_HYPERV_SYNIC is that KVM
+doesn't clear SynIC message and event flags pages when they are enabled by
+writing to the respective MSRs.
+
+8.12 KVM_CAP_HYPERV_VP_INDEX
+
+Architectures: x86
+
+This capability indicates that userspace can load HV_X64_MSR_VP_INDEX msr. Its
+value is used to denote the target vcpu for a SynIC interrupt. For
+compatibilty, KVM initializes this msr to KVM's internal vcpu index. When this
+capability is absent, userspace can still query this msr's value.
diff --git a/Documentation/virtual/kvm/devices/arm-vgic.txt b/Documentation/virtual/kvm/devices/arm-vgic.txt
index b2f60ca8b60c..b3ce12643553 100644
--- a/Documentation/virtual/kvm/devices/arm-vgic.txt
+++ b/Documentation/virtual/kvm/devices/arm-vgic.txt
@@ -83,6 +83,11 @@ Groups:
Bits for undefined preemption levels are RAZ/WI.
+ Note that this differs from a CPU's view of the APRs on hardware in which
+ a GIC without the security extensions expose group 0 and group 1 active
+ priorities in separate register groups, whereas we show a combined view
+ similar to GICv2's GICH_APR.
+
For historical reasons and to provide ABI compatibility with userspace we
export the GICC_PMR register in the format of the GICH_VMCR.VMPriMask
field in the lower 5 bits of a word, meaning that userspace must always
diff --git a/Documentation/virtual/kvm/devices/s390_flic.txt b/Documentation/virtual/kvm/devices/s390_flic.txt
index c2518cea8ab4..2f1cbf1301d2 100644
--- a/Documentation/virtual/kvm/devices/s390_flic.txt
+++ b/Documentation/virtual/kvm/devices/s390_flic.txt
@@ -16,6 +16,7 @@ FLIC provides support to
- register and modify adapter interrupt sources (KVM_DEV_FLIC_ADAPTER_*)
- modify AIS (adapter-interruption-suppression) mode state (KVM_DEV_FLIC_AISM)
- inject adapter interrupts on a specified adapter (KVM_DEV_FLIC_AIRQ_INJECT)
+- get/set all AIS mode states (KVM_DEV_FLIC_AISM_ALL)
Groups:
KVM_DEV_FLIC_ENQUEUE
@@ -136,6 +137,20 @@ struct kvm_s390_ais_req {
an isc according to the adapter-interruption-suppression mode on condition
that the AIS capability is enabled.
+ KVM_DEV_FLIC_AISM_ALL
+ Gets or sets the adapter-interruption-suppression mode for all ISCs. Takes
+ a kvm_s390_ais_all describing:
+
+struct kvm_s390_ais_all {
+ __u8 simm; /* Single-Interruption-Mode mask */
+ __u8 nimm; /* No-Interruption-Mode mask *
+};
+
+ simm contains Single-Interruption-Mode mask for all ISCs, nimm contains
+ No-Interruption-Mode mask for all ISCs. Each bit in simm and nimm corresponds
+ to an ISC (MSB0 bit 0 to ISC 0 and so on). The combination of simm bit and
+ nimm bit presents AIS mode for a ISC.
+
Note: The KVM_SET_DEVICE_ATTR/KVM_GET_DEVICE_ATTR device ioctls executed on
FLIC with an unknown group or attribute gives the error code EINVAL (instead of
ENXIO, as specified in the API documentation). It is not possible to conclude
diff --git a/Documentation/virtual/kvm/devices/vcpu.txt b/Documentation/virtual/kvm/devices/vcpu.txt
index 02f50686c418..2b5dab16c4f2 100644
--- a/Documentation/virtual/kvm/devices/vcpu.txt
+++ b/Documentation/virtual/kvm/devices/vcpu.txt
@@ -16,7 +16,9 @@ Parameters: in kvm_device_attr.addr the address for PMU overflow interrupt is a
Returns: -EBUSY: The PMU overflow interrupt is already set
-ENXIO: The overflow interrupt not set when attempting to get it
-ENODEV: PMUv3 not supported
- -EINVAL: Invalid PMU overflow interrupt number supplied
+ -EINVAL: Invalid PMU overflow interrupt number supplied or
+ trying to set the IRQ number without using an in-kernel
+ irqchip.
A value describing the PMUv3 (Performance Monitor Unit v3) overflow interrupt
number for this vcpu. This interrupt could be a PPI or SPI, but the interrupt
@@ -25,11 +27,36 @@ all vcpus, while as an SPI it must be a separate number per vcpu.
1.2 ATTRIBUTE: KVM_ARM_VCPU_PMU_V3_INIT
Parameters: no additional parameter in kvm_device_attr.addr
-Returns: -ENODEV: PMUv3 not supported
- -ENXIO: PMUv3 not properly configured as required prior to calling this
- attribute
+Returns: -ENODEV: PMUv3 not supported or GIC not initialized
+ -ENXIO: PMUv3 not properly configured or in-kernel irqchip not
+ configured as required prior to calling this attribute
-EBUSY: PMUv3 already initialized
-Request the initialization of the PMUv3. This must be done after creating the
-in-kernel irqchip. Creating a PMU with a userspace irqchip is currently not
-supported.
+Request the initialization of the PMUv3. If using the PMUv3 with an in-kernel
+virtual GIC implementation, this must be done after initializing the in-kernel
+irqchip.
+
+
+2. GROUP: KVM_ARM_VCPU_TIMER_CTRL
+Architectures: ARM,ARM64
+
+2.1. ATTRIBUTE: KVM_ARM_VCPU_TIMER_IRQ_VTIMER
+2.2. ATTRIBUTE: KVM_ARM_VCPU_TIMER_IRQ_PTIMER
+Parameters: in kvm_device_attr.addr the address for the timer interrupt is a
+ pointer to an int
+Returns: -EINVAL: Invalid timer interrupt number
+ -EBUSY: One or more VCPUs has already run
+
+A value describing the architected timer interrupt number when connected to an
+in-kernel virtual GIC. These must be a PPI (16 <= intid < 32). Setting the
+attribute overrides the default values (see below).
+
+KVM_ARM_VCPU_TIMER_IRQ_VTIMER: The EL1 virtual timer intid (default: 27)
+KVM_ARM_VCPU_TIMER_IRQ_PTIMER: The EL1 physical timer intid (default: 30)
+
+Setting the same PPI for different timers will prevent the VCPUs from running.
+Setting the interrupt number on a VCPU configures all VCPUs created at that
+time to use the number provided for a given timer, overwriting any previously
+configured values on other VCPUs. Userspace should configure the interrupt
+numbers on at least one VCPU after creating all VCPUs and before running any
+VCPUs.
diff --git a/Documentation/virtual/kvm/devices/vm.txt b/Documentation/virtual/kvm/devices/vm.txt
index 575ccb022aac..95ca68d663a4 100644
--- a/Documentation/virtual/kvm/devices/vm.txt
+++ b/Documentation/virtual/kvm/devices/vm.txt
@@ -176,7 +176,8 @@ Architectures: s390
3.1. ATTRIBUTE: KVM_S390_VM_TOD_HIGH
-Allows user space to set/get the TOD clock extension (u8).
+Allows user space to set/get the TOD clock extension (u8) (superseded by
+KVM_S390_VM_TOD_EXT).
Parameters: address of a buffer in user space to store the data (u8) to
Returns: -EFAULT if the given address is not accessible from kernel space
@@ -190,6 +191,17 @@ the POP (u64).
Parameters: address of a buffer in user space to store the data (u64) to
Returns: -EFAULT if the given address is not accessible from kernel space
+3.3. ATTRIBUTE: KVM_S390_VM_TOD_EXT
+Allows user space to set/get bits 0-63 of the TOD clock register as defined in
+the POP (u64). If the guest CPU model supports the TOD clock extension (u8), it
+also allows user space to get/set it. If the guest CPU model does not support
+it, it is stored as 0 and not allowed to be set to a value != 0.
+
+Parameters: address of a buffer in user space to store the data
+ (kvm_s390_vm_tod_clock) to
+Returns: -EFAULT if the given address is not accessible from kernel space
+ -EINVAL if setting the TOD clock extension to != 0 is not supported
+
4. GROUP: KVM_S390_VM_CRYPTO
Architectures: s390
@@ -222,3 +234,36 @@ Allows user space to disable dea key wrapping, clearing the wrapping key.
Parameters: none
Returns: 0
+
+5. GROUP: KVM_S390_VM_MIGRATION
+Architectures: s390
+
+5.1. ATTRIBUTE: KVM_S390_VM_MIGRATION_STOP (w/o)
+
+Allows userspace to stop migration mode, needed for PGSTE migration.
+Setting this attribute when migration mode is not active will have no
+effects.
+
+Parameters: none
+Returns: 0
+
+5.2. ATTRIBUTE: KVM_S390_VM_MIGRATION_START (w/o)
+
+Allows userspace to start migration mode, needed for PGSTE migration.
+Setting this attribute when migration mode is already active will have
+no effects.
+
+Parameters: none
+Returns: -ENOMEM if there is not enough free memory to start migration mode
+ -EINVAL if the state of the VM is invalid (e.g. no memory defined)
+ 0 in case of success.
+
+5.3. ATTRIBUTE: KVM_S390_VM_MIGRATION_STATUS (r/o)
+
+Allows userspace to query the status of migration mode.
+
+Parameters: address of a buffer in user space to store the data (u64) to;
+ the data itself is either 0 if migration mode is disabled or 1
+ if it is enabled
+Returns: -EFAULT if the given address is not accessible from kernel space
+ 0 in case of success.
diff --git a/Documentation/virtual/kvm/mmu.txt b/Documentation/virtual/kvm/mmu.txt
index 481b6a9c25d5..f50d45b1e967 100644
--- a/Documentation/virtual/kvm/mmu.txt
+++ b/Documentation/virtual/kvm/mmu.txt
@@ -179,6 +179,10 @@ Shadow pages contain the following information:
shadow page; it is also used to go back from a struct kvm_mmu_page
to a memslot, through the kvm_memslots_for_spte_role macro and
__gfn_to_memslot.
+ role.ad_disabled:
+ Is 1 if the MMU instance cannot use A/D bits. EPT did not have A/D
+ bits before Haswell; shadow EPT page tables also cannot use A/D bits
+ if the L1 hypervisor does not enable them.
gfn:
Either the guest page table containing the translations shadowed by this
page, or the base page frame for linear translations. See role.direct.
diff --git a/Documentation/virtual/kvm/msr.txt b/Documentation/virtual/kvm/msr.txt
index 0a9ea515512a..1ebecc115dc6 100644
--- a/Documentation/virtual/kvm/msr.txt
+++ b/Documentation/virtual/kvm/msr.txt
@@ -166,10 +166,11 @@ MSR_KVM_SYSTEM_TIME: 0x12
MSR_KVM_ASYNC_PF_EN: 0x4b564d02
data: Bits 63-6 hold 64-byte aligned physical address of a
64 byte memory area which must be in guest RAM and must be
- zeroed. Bits 5-2 are reserved and should be zero. Bit 0 is 1
+ zeroed. Bits 5-3 are reserved and should be zero. Bit 0 is 1
when asynchronous page faults are enabled on the vcpu 0 when
disabled. Bit 1 is 1 if asynchronous page faults can be injected
- when vcpu is in cpl == 0.
+ when vcpu is in cpl == 0. Bit 2 is 1 if asynchronous page faults
+ are delivered to L1 as #PF vmexits.
First 4 byte of 64 byte memory location will be written to by
the hypervisor at the time of asynchronous page fault (APF)
diff --git a/Documentation/virtual/kvm/vcpu-requests.rst b/Documentation/virtual/kvm/vcpu-requests.rst
new file mode 100644
index 000000000000..5feb3706a7ae
--- /dev/null
+++ b/Documentation/virtual/kvm/vcpu-requests.rst
@@ -0,0 +1,307 @@
+=================
+KVM VCPU Requests
+=================
+
+Overview
+========
+
+KVM supports an internal API enabling threads to request a VCPU thread to
+perform some activity. For example, a thread may request a VCPU to flush
+its TLB with a VCPU request. The API consists of the following functions::
+
+ /* Check if any requests are pending for VCPU @vcpu. */
+ bool kvm_request_pending(struct kvm_vcpu *vcpu);
+
+ /* Check if VCPU @vcpu has request @req pending. */
+ bool kvm_test_request(int req, struct kvm_vcpu *vcpu);
+
+ /* Clear request @req for VCPU @vcpu. */
+ void kvm_clear_request(int req, struct kvm_vcpu *vcpu);
+
+ /*
+ * Check if VCPU @vcpu has request @req pending. When the request is
+ * pending it will be cleared and a memory barrier, which pairs with
+ * another in kvm_make_request(), will be issued.
+ */
+ bool kvm_check_request(int req, struct kvm_vcpu *vcpu);
+
+ /*
+ * Make request @req of VCPU @vcpu. Issues a memory barrier, which pairs
+ * with another in kvm_check_request(), prior to setting the request.
+ */
+ void kvm_make_request(int req, struct kvm_vcpu *vcpu);
+
+ /* Make request @req of all VCPUs of the VM with struct kvm @kvm. */
+ bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req);
+
+Typically a requester wants the VCPU to perform the activity as soon
+as possible after making the request. This means most requests
+(kvm_make_request() calls) are followed by a call to kvm_vcpu_kick(),
+and kvm_make_all_cpus_request() has the kicking of all VCPUs built
+into it.
+
+VCPU Kicks
+----------
+
+The goal of a VCPU kick is to bring a VCPU thread out of guest mode in
+order to perform some KVM maintenance. To do so, an IPI is sent, forcing
+a guest mode exit. However, a VCPU thread may not be in guest mode at the
+time of the kick. Therefore, depending on the mode and state of the VCPU
+thread, there are two other actions a kick may take. All three actions
+are listed below:
+
+1) Send an IPI. This forces a guest mode exit.
+2) Waking a sleeping VCPU. Sleeping VCPUs are VCPU threads outside guest
+ mode that wait on waitqueues. Waking them removes the threads from
+ the waitqueues, allowing the threads to run again. This behavior
+ may be suppressed, see KVM_REQUEST_NO_WAKEUP below.
+3) Nothing. When the VCPU is not in guest mode and the VCPU thread is not
+ sleeping, then there is nothing to do.
+
+VCPU Mode
+---------
+
+VCPUs have a mode state, ``vcpu->mode``, that is used to track whether the
+guest is running in guest mode or not, as well as some specific
+outside guest mode states. The architecture may use ``vcpu->mode`` to
+ensure VCPU requests are seen by VCPUs (see "Ensuring Requests Are Seen"),
+as well as to avoid sending unnecessary IPIs (see "IPI Reduction"), and
+even to ensure IPI acknowledgements are waited upon (see "Waiting for
+Acknowledgements"). The following modes are defined:
+
+OUTSIDE_GUEST_MODE
+
+ The VCPU thread is outside guest mode.
+
+IN_GUEST_MODE
+
+ The VCPU thread is in guest mode.
+
+EXITING_GUEST_MODE
+
+ The VCPU thread is transitioning from IN_GUEST_MODE to
+ OUTSIDE_GUEST_MODE.
+
+READING_SHADOW_PAGE_TABLES
+
+ The VCPU thread is outside guest mode, but it wants the sender of
+ certain VCPU requests, namely KVM_REQ_TLB_FLUSH, to wait until the VCPU
+ thread is done reading the page tables.
+
+VCPU Request Internals
+======================
+
+VCPU requests are simply bit indices of the ``vcpu->requests`` bitmap.
+This means general bitops, like those documented in [atomic-ops]_ could
+also be used, e.g. ::
+
+ clear_bit(KVM_REQ_UNHALT & KVM_REQUEST_MASK, &vcpu->requests);
+
+However, VCPU request users should refrain from doing so, as it would
+break the abstraction. The first 8 bits are reserved for architecture
+independent requests, all additional bits are available for architecture
+dependent requests.
+
+Architecture Independent Requests
+---------------------------------
+
+KVM_REQ_TLB_FLUSH
+
+ KVM's common MMU notifier may need to flush all of a guest's TLB
+ entries, calling kvm_flush_remote_tlbs() to do so. Architectures that
+ choose to use the common kvm_flush_remote_tlbs() implementation will
+ need to handle this VCPU request.
+
+KVM_REQ_MMU_RELOAD
+
+ When shadow page tables are used and memory slots are removed it's
+ necessary to inform each VCPU to completely refresh the tables. This
+ request is used for that.
+
+KVM_REQ_PENDING_TIMER
+
+ This request may be made from a timer handler run on the host on behalf
+ of a VCPU. It informs the VCPU thread to inject a timer interrupt.
+
+KVM_REQ_UNHALT
+
+ This request may be made from the KVM common function kvm_vcpu_block(),
+ which is used to emulate an instruction that causes a CPU to halt until
+ one of an architectural specific set of events and/or interrupts is
+ received (determined by checking kvm_arch_vcpu_runnable()). When that
+ event or interrupt arrives kvm_vcpu_block() makes the request. This is
+ in contrast to when kvm_vcpu_block() returns due to any other reason,
+ such as a pending signal, which does not indicate the VCPU's halt
+ emulation should stop, and therefore does not make the request.
+
+KVM_REQUEST_MASK
+----------------
+
+VCPU requests should be masked by KVM_REQUEST_MASK before using them with
+bitops. This is because only the lower 8 bits are used to represent the
+request's number. The upper bits are used as flags. Currently only two
+flags are defined.
+
+VCPU Request Flags
+------------------
+
+KVM_REQUEST_NO_WAKEUP
+
+ This flag is applied to requests that only need immediate attention
+ from VCPUs running in guest mode. That is, sleeping VCPUs do not need
+ to be awaken for these requests. Sleeping VCPUs will handle the
+ requests when they are awaken later for some other reason.
+
+KVM_REQUEST_WAIT
+
+ When requests with this flag are made with kvm_make_all_cpus_request(),
+ then the caller will wait for each VCPU to acknowledge its IPI before
+ proceeding. This flag only applies to VCPUs that would receive IPIs.
+ If, for example, the VCPU is sleeping, so no IPI is necessary, then
+ the requesting thread does not wait. This means that this flag may be
+ safely combined with KVM_REQUEST_NO_WAKEUP. See "Waiting for
+ Acknowledgements" for more information about requests with
+ KVM_REQUEST_WAIT.
+
+VCPU Requests with Associated State
+===================================
+
+Requesters that want the receiving VCPU to handle new state need to ensure
+the newly written state is observable to the receiving VCPU thread's CPU
+by the time it observes the request. This means a write memory barrier
+must be inserted after writing the new state and before setting the VCPU
+request bit. Additionally, on the receiving VCPU thread's side, a
+corresponding read barrier must be inserted after reading the request bit
+and before proceeding to read the new state associated with it. See
+scenario 3, Message and Flag, of [lwn-mb]_ and the kernel documentation
+[memory-barriers]_.
+
+The pair of functions, kvm_check_request() and kvm_make_request(), provide
+the memory barriers, allowing this requirement to be handled internally by
+the API.
+
+Ensuring Requests Are Seen
+==========================
+
+When making requests to VCPUs, we want to avoid the receiving VCPU
+executing in guest mode for an arbitrary long time without handling the
+request. We can be sure this won't happen as long as we ensure the VCPU
+thread checks kvm_request_pending() before entering guest mode and that a
+kick will send an IPI to force an exit from guest mode when necessary.
+Extra care must be taken to cover the period after the VCPU thread's last
+kvm_request_pending() check and before it has entered guest mode, as kick
+IPIs will only trigger guest mode exits for VCPU threads that are in guest
+mode or at least have already disabled interrupts in order to prepare to
+enter guest mode. This means that an optimized implementation (see "IPI
+Reduction") must be certain when it's safe to not send the IPI. One
+solution, which all architectures except s390 apply, is to:
+
+- set ``vcpu->mode`` to IN_GUEST_MODE between disabling the interrupts and
+ the last kvm_request_pending() check;
+- enable interrupts atomically when entering the guest.
+
+This solution also requires memory barriers to be placed carefully in both
+the requesting thread and the receiving VCPU. With the memory barriers we
+can exclude the possibility of a VCPU thread observing
+!kvm_request_pending() on its last check and then not receiving an IPI for
+the next request made of it, even if the request is made immediately after
+the check. This is done by way of the Dekker memory barrier pattern
+(scenario 10 of [lwn-mb]_). As the Dekker pattern requires two variables,
+this solution pairs ``vcpu->mode`` with ``vcpu->requests``. Substituting
+them into the pattern gives::
+
+ CPU1 CPU2
+ ================= =================
+ local_irq_disable();
+ WRITE_ONCE(vcpu->mode, IN_GUEST_MODE); kvm_make_request(REQ, vcpu);
+ smp_mb(); smp_mb();
+ if (kvm_request_pending(vcpu)) { if (READ_ONCE(vcpu->mode) ==
+ IN_GUEST_MODE) {
+ ...abort guest entry... ...send IPI...
+ } }
+
+As stated above, the IPI is only useful for VCPU threads in guest mode or
+that have already disabled interrupts. This is why this specific case of
+the Dekker pattern has been extended to disable interrupts before setting
+``vcpu->mode`` to IN_GUEST_MODE. WRITE_ONCE() and READ_ONCE() are used to
+pedantically implement the memory barrier pattern, guaranteeing the
+compiler doesn't interfere with ``vcpu->mode``'s carefully planned
+accesses.
+
+IPI Reduction
+-------------
+
+As only one IPI is needed to get a VCPU to check for any/all requests,
+then they may be coalesced. This is easily done by having the first IPI
+sending kick also change the VCPU mode to something !IN_GUEST_MODE. The
+transitional state, EXITING_GUEST_MODE, is used for this purpose.
+
+Waiting for Acknowledgements
+----------------------------
+
+Some requests, those with the KVM_REQUEST_WAIT flag set, require IPIs to
+be sent, and the acknowledgements to be waited upon, even when the target
+VCPU threads are in modes other than IN_GUEST_MODE. For example, one case
+is when a target VCPU thread is in READING_SHADOW_PAGE_TABLES mode, which
+is set after disabling interrupts. To support these cases, the
+KVM_REQUEST_WAIT flag changes the condition for sending an IPI from
+checking that the VCPU is IN_GUEST_MODE to checking that it is not
+OUTSIDE_GUEST_MODE.
+
+Request-less VCPU Kicks
+-----------------------
+
+As the determination of whether or not to send an IPI depends on the
+two-variable Dekker memory barrier pattern, then it's clear that
+request-less VCPU kicks are almost never correct. Without the assurance
+that a non-IPI generating kick will still result in an action by the
+receiving VCPU, as the final kvm_request_pending() check does for
+request-accompanying kicks, then the kick may not do anything useful at
+all. If, for instance, a request-less kick was made to a VCPU that was
+just about to set its mode to IN_GUEST_MODE, meaning no IPI is sent, then
+the VCPU thread may continue its entry without actually having done
+whatever it was the kick was meant to initiate.
+
+One exception is x86's posted interrupt mechanism. In this case, however,
+even the request-less VCPU kick is coupled with the same
+local_irq_disable() + smp_mb() pattern described above; the ON bit
+(Outstanding Notification) in the posted interrupt descriptor takes the
+role of ``vcpu->requests``. When sending a posted interrupt, PIR.ON is
+set before reading ``vcpu->mode``; dually, in the VCPU thread,
+vmx_sync_pir_to_irr() reads PIR after setting ``vcpu->mode`` to
+IN_GUEST_MODE.
+
+Additional Considerations
+=========================
+
+Sleeping VCPUs
+--------------
+
+VCPU threads may need to consider requests before and/or after calling
+functions that may put them to sleep, e.g. kvm_vcpu_block(). Whether they
+do or not, and, if they do, which requests need consideration, is
+architecture dependent. kvm_vcpu_block() calls kvm_arch_vcpu_runnable()
+to check if it should awaken. One reason to do so is to provide
+architectures a function where requests may be checked if necessary.
+
+Clearing Requests
+-----------------
+
+Generally it only makes sense for the receiving VCPU thread to clear a
+request. However, in some circumstances, such as when the requesting
+thread and the receiving VCPU thread are executed serially, such as when
+they are the same thread, or when they are using some form of concurrency
+control to temporarily execute synchronously, then it's possible to know
+that the request may be cleared immediately, rather than waiting for the
+receiving VCPU thread to handle the request in VCPU RUN. The only current
+examples of this are kvm_vcpu_block() calls made by VCPUs to block
+themselves. A possible side-effect of that call is to make the
+KVM_REQ_UNHALT request, which may then be cleared immediately when the
+VCPU returns from the call.
+
+References
+==========
+
+.. [atomic-ops] Documentation/core-api/atomic_ops.rst
+.. [memory-barriers] Documentation/memory-barriers.txt
+.. [lwn-mb] https://lwn.net/Articles/573436/
diff --git a/Documentation/vm/hmm.txt b/Documentation/vm/hmm.txt
new file mode 100644
index 000000000000..4d3aac9f4a5d
--- /dev/null
+++ b/Documentation/vm/hmm.txt
@@ -0,0 +1,384 @@
+Heterogeneous Memory Management (HMM)
+
+Transparently allow any component of a program to use any memory region of said
+program with a device without using device specific memory allocator. This is
+becoming a requirement to simplify the use of advance heterogeneous computing
+where GPU, DSP or FPGA are use to perform various computations.
+
+This document is divided as follow, in the first section i expose the problems
+related to the use of a device specific allocator. The second section i expose
+the hardware limitations that are inherent to many platforms. The third section
+gives an overview of HMM designs. The fourth section explains how CPU page-
+table mirroring works and what is HMM purpose in this context. Fifth section
+deals with how device memory is represented inside the kernel. Finaly the last
+section present the new migration helper that allow to leverage the device DMA
+engine.
+
+
+1) Problems of using device specific memory allocator:
+2) System bus, device memory characteristics
+3) Share address space and migration
+4) Address space mirroring implementation and API
+5) Represent and manage device memory from core kernel point of view
+6) Migrate to and from device memory
+7) Memory cgroup (memcg) and rss accounting
+
+
+-------------------------------------------------------------------------------
+
+1) Problems of using device specific memory allocator:
+
+Device with large amount of on board memory (several giga bytes) like GPU have
+historically manage their memory through dedicated driver specific API. This
+creates a disconnect between memory allocated and managed by device driver and
+regular application memory (private anonymous, share memory or regular file
+back memory). From here on i will refer to this aspect as split address space.
+I use share address space to refer to the opposite situation ie one in which
+any memory region can be use by device transparently.
+
+Split address space because device can only access memory allocated through the
+device specific API. This imply that all memory object in a program are not
+equal from device point of view which complicate large program that rely on a
+wide set of libraries.
+
+Concretly this means that code that wants to leverage device like GPU need to
+copy object between genericly allocated memory (malloc, mmap private/share/)
+and memory allocated through the device driver API (this still end up with an
+mmap but of the device file).
+
+For flat dataset (array, grid, image, ...) this isn't too hard to achieve but
+complex data-set (list, tree, ...) are hard to get right. Duplicating a complex
+data-set need to re-map all the pointer relations between each of its elements.
+This is error prone and program gets harder to debug because of the duplicate
+data-set.
+
+Split address space also means that library can not transparently use data they
+are getting from core program or other library and thus each library might have
+to duplicate its input data-set using specific memory allocator. Large project
+suffer from this and waste resources because of the various memory copy.
+
+Duplicating each library API to accept as input or output memory allocted by
+each device specific allocator is not a viable option. It would lead to a
+combinatorial explosions in the library entry points.
+
+Finaly with the advance of high level language constructs (in C++ but in other
+language too) it is now possible for compiler to leverage GPU or other devices
+without even the programmer knowledge. Some of compiler identified patterns are
+only do-able with a share address. It is as well more reasonable to use a share
+address space for all the other patterns.
+
+
+-------------------------------------------------------------------------------
+
+2) System bus, device memory characteristics
+
+System bus cripple share address due to few limitations. Most system bus only
+allow basic memory access from device to main memory, even cache coherency is
+often optional. Access to device memory from CPU is even more limited, most
+often than not it is not cache coherent.
+
+If we only consider the PCIE bus than device can access main memory (often
+through an IOMMU) and be cache coherent with the CPUs. However it only allows
+a limited set of atomic operation from device on main memory. This is worse
+in the other direction the CPUs can only access a limited range of the device
+memory and can not perform atomic operations on it. Thus device memory can not
+be consider like regular memory from kernel point of view.
+
+Another crippling factor is the limited bandwidth (~32GBytes/s with PCIE 4.0
+and 16 lanes). This is 33 times less that fastest GPU memory (1 TBytes/s).
+The final limitation is latency, access to main memory from the device has an
+order of magnitude higher latency than when the device access its own memory.
+
+Some platform are developing new system bus or additions/modifications to PCIE
+to address some of those limitations (OpenCAPI, CCIX). They mainly allow two
+way cache coherency between CPU and device and allow all atomic operations the
+architecture supports. Saddly not all platform are following this trends and
+some major architecture are left without hardware solutions to those problems.
+
+So for share address space to make sense not only we must allow device to
+access any memory memory but we must also permit any memory to be migrated to
+device memory while device is using it (blocking CPU access while it happens).
+
+
+-------------------------------------------------------------------------------
+
+3) Share address space and migration
+
+HMM intends to provide two main features. First one is to share the address
+space by duplication the CPU page table into the device page table so same
+address point to same memory and this for any valid main memory address in
+the process address space.
+
+To achieve this, HMM offer a set of helpers to populate the device page table
+while keeping track of CPU page table updates. Device page table updates are
+not as easy as CPU page table updates. To update the device page table you must
+allow a buffer (or use a pool of pre-allocated buffer) and write GPU specifics
+commands in it to perform the update (unmap, cache invalidations and flush,
+...). This can not be done through common code for all device. Hence why HMM
+provides helpers to factor out everything that can be while leaving the gory
+details to the device driver.
+
+The second mechanism HMM provide is a new kind of ZONE_DEVICE memory that does
+allow to allocate a struct page for each page of the device memory. Those page
+are special because the CPU can not map them. They however allow to migrate
+main memory to device memory using exhisting migration mechanism and everything
+looks like if page was swap out to disk from CPU point of view. Using a struct
+page gives the easiest and cleanest integration with existing mm mechanisms.
+Again here HMM only provide helpers, first to hotplug new ZONE_DEVICE memory
+for the device memory and second to perform migration. Policy decision of what
+and when to migrate things is left to the device driver.
+
+Note that any CPU access to a device page trigger a page fault and a migration
+back to main memory ie when a page backing an given address A is migrated from
+a main memory page to a device page then any CPU access to address A trigger a
+page fault and initiate a migration back to main memory.
+
+
+With this two features, HMM not only allow a device to mirror a process address
+space and keeps both CPU and device page table synchronize, but also allow to
+leverage device memory by migrating part of data-set that is actively use by a
+device.
+
+
+-------------------------------------------------------------------------------
+
+4) Address space mirroring implementation and API
+
+Address space mirroring main objective is to allow to duplicate range of CPU
+page table into a device page table and HMM helps keeping both synchronize. A
+device driver that want to mirror a process address space must start with the
+registration of an hmm_mirror struct:
+
+ int hmm_mirror_register(struct hmm_mirror *mirror,
+ struct mm_struct *mm);
+ int hmm_mirror_register_locked(struct hmm_mirror *mirror,
+ struct mm_struct *mm);
+
+The locked variant is to be use when the driver is already holding the mmap_sem
+of the mm in write mode. The mirror struct has a set of callback that are use
+to propagate CPU page table:
+
+ struct hmm_mirror_ops {
+ /* sync_cpu_device_pagetables() - synchronize page tables
+ *
+ * @mirror: pointer to struct hmm_mirror
+ * @update_type: type of update that occurred to the CPU page table
+ * @start: virtual start address of the range to update
+ * @end: virtual end address of the range to update
+ *
+ * This callback ultimately originates from mmu_notifiers when the CPU
+ * page table is updated. The device driver must update its page table
+ * in response to this callback. The update argument tells what action
+ * to perform.
+ *
+ * The device driver must not return from this callback until the device
+ * page tables are completely updated (TLBs flushed, etc); this is a
+ * synchronous call.
+ */
+ void (*update)(struct hmm_mirror *mirror,
+ enum hmm_update action,
+ unsigned long start,
+ unsigned long end);
+ };
+
+Device driver must perform update to the range following action (turn range
+read only, or fully unmap, ...). Once driver callback returns the device must
+be done with the update.
+
+
+When device driver wants to populate a range of virtual address it can use
+either:
+ int hmm_vma_get_pfns(struct vm_area_struct *vma,
+ struct hmm_range *range,
+ unsigned long start,
+ unsigned long end,
+ hmm_pfn_t *pfns);
+ int hmm_vma_fault(struct vm_area_struct *vma,
+ struct hmm_range *range,
+ unsigned long start,
+ unsigned long end,
+ hmm_pfn_t *pfns,
+ bool write,
+ bool block);
+
+First one (hmm_vma_get_pfns()) will only fetch present CPU page table entry and
+will not trigger a page fault on missing or non present entry. The second one
+do trigger page fault on missing or read only entry if write parameter is true.
+Page fault use the generic mm page fault code path just like a CPU page fault.
+
+Both function copy CPU page table into their pfns array argument. Each entry in
+that array correspond to an address in the virtual range. HMM provide a set of
+flags to help driver identify special CPU page table entries.
+
+Locking with the update() callback is the most important aspect the driver must
+respect in order to keep things properly synchronize. The usage pattern is :
+
+ int driver_populate_range(...)
+ {
+ struct hmm_range range;
+ ...
+ again:
+ ret = hmm_vma_get_pfns(vma, &range, start, end, pfns);
+ if (ret)
+ return ret;
+ take_lock(driver->update);
+ if (!hmm_vma_range_done(vma, &range)) {
+ release_lock(driver->update);
+ goto again;
+ }
+
+ // Use pfns array content to update device page table
+
+ release_lock(driver->update);
+ return 0;
+ }
+
+The driver->update lock is the same lock that driver takes inside its update()
+callback. That lock must be call before hmm_vma_range_done() to avoid any race
+with a concurrent CPU page table update.
+
+HMM implements all this on top of the mmu_notifier API because we wanted to a
+simpler API and also to be able to perform optimization latter own like doing
+concurrent device update in multi-devices scenario.
+
+HMM also serve as an impedence missmatch between how CPU page table update are
+done (by CPU write to the page table and TLB flushes) from how device update
+their own page table. Device update is a multi-step process, first appropriate
+commands are write to a buffer, then this buffer is schedule for execution on
+the device. It is only once the device has executed commands in the buffer that
+the update is done. Creating and scheduling update command buffer can happen
+concurrently for multiple devices. Waiting for each device to report commands
+as executed is serialize (there is no point in doing this concurrently).
+
+
+-------------------------------------------------------------------------------
+
+5) Represent and manage device memory from core kernel point of view
+
+Several differents design were try to support device memory. First one use
+device specific data structure to keep information about migrated memory and
+HMM hooked itself in various place of mm code to handle any access to address
+that were back by device memory. It turns out that this ended up replicating
+most of the fields of struct page and also needed many kernel code path to be
+updated to understand this new kind of memory.
+
+Thing is most kernel code path never try to access the memory behind a page
+but only care about struct page contents. Because of this HMM switchted to
+directly using struct page for device memory which left most kernel code path
+un-aware of the difference. We only need to make sure that no one ever try to
+map those page from the CPU side.
+
+HMM provide a set of helpers to register and hotplug device memory as a new
+region needing struct page. This is offer through a very simple API:
+
+ struct hmm_devmem *hmm_devmem_add(const struct hmm_devmem_ops *ops,
+ struct device *device,
+ unsigned long size);
+ void hmm_devmem_remove(struct hmm_devmem *devmem);
+
+The hmm_devmem_ops is where most of the important things are:
+
+ struct hmm_devmem_ops {
+ void (*free)(struct hmm_devmem *devmem, struct page *page);
+ int (*fault)(struct hmm_devmem *devmem,
+ struct vm_area_struct *vma,
+ unsigned long addr,
+ struct page *page,
+ unsigned flags,
+ pmd_t *pmdp);
+ };
+
+The first callback (free()) happens when the last reference on a device page is
+drop. This means the device page is now free and no longer use by anyone. The
+second callback happens whenever CPU try to access a device page which it can
+not do. This second callback must trigger a migration back to system memory.
+
+
+-------------------------------------------------------------------------------
+
+6) Migrate to and from device memory
+
+Because CPU can not access device memory, migration must use device DMA engine
+to perform copy from and to device memory. For this we need a new migration
+helper:
+
+ int migrate_vma(const struct migrate_vma_ops *ops,
+ struct vm_area_struct *vma,
+ unsigned long mentries,
+ unsigned long start,
+ unsigned long end,
+ unsigned long *src,
+ unsigned long *dst,
+ void *private);
+
+Unlike other migration function it works on a range of virtual address, there
+is two reasons for that. First device DMA copy has a high setup overhead cost
+and thus batching multiple pages is needed as otherwise the migration overhead
+make the whole excersie pointless. The second reason is because driver trigger
+such migration base on range of address the device is actively accessing.
+
+The migrate_vma_ops struct define two callbacks. First one (alloc_and_copy())
+control destination memory allocation and copy operation. Second one is there
+to allow device driver to perform cleanup operation after migration.
+
+ struct migrate_vma_ops {
+ void (*alloc_and_copy)(struct vm_area_struct *vma,
+ const unsigned long *src,
+ unsigned long *dst,
+ unsigned long start,
+ unsigned long end,
+ void *private);
+ void (*finalize_and_map)(struct vm_area_struct *vma,
+ const unsigned long *src,
+ const unsigned long *dst,
+ unsigned long start,
+ unsigned long end,
+ void *private);
+ };
+
+It is important to stress that this migration helpers allow for hole in the
+virtual address range. Some pages in the range might not be migrated for all
+the usual reasons (page is pin, page is lock, ...). This helper does not fail
+but just skip over those pages.
+
+The alloc_and_copy() might as well decide to not migrate all pages in the
+range (for reasons under the callback control). For those the callback just
+have to leave the corresponding dst entry empty.
+
+Finaly the migration of the struct page might fails (for file back page) for
+various reasons (failure to freeze reference, or update page cache, ...). If
+that happens then the finalize_and_map() can catch any pages that was not
+migrated. Note those page were still copied to new page and thus we wasted
+bandwidth but this is considered as a rare event and a price that we are
+willing to pay to keep all the code simpler.
+
+
+-------------------------------------------------------------------------------
+
+7) Memory cgroup (memcg) and rss accounting
+
+For now device memory is accounted as any regular page in rss counters (either
+anonymous if device page is use for anonymous, file if device page is use for
+file back page or shmem if device page is use for share memory). This is a
+deliberate choice to keep existing application that might start using device
+memory without knowing about it to keep runing unimpacted.
+
+Drawbacks is that OOM killer might kill an application using a lot of device
+memory and not a lot of regular system memory and thus not freeing much system
+memory. We want to gather more real world experience on how application and
+system react under memory pressure in the presence of device memory before
+deciding to account device memory differently.
+
+
+Same decision was made for memory cgroup. Device memory page are accounted
+against same memory cgroup a regular page would be accounted to. This does
+simplify migration to and from device memory. This also means that migration
+back from device memory to regular memory can not fail because it would
+go above memory cgroup limit. We might revisit this choice latter on once we
+get more experience in how device memory is use and its impact on memory
+resource control.
+
+
+Note that device memory can never be pin nor by device driver nor through GUP
+and thus such memory is always free upon process exit. Or when last reference
+is drop in case of share memory or file back memory.
diff --git a/Documentation/vm/ksm.txt b/Documentation/vm/ksm.txt
index 6b0ca7feb135..6686bd267dc9 100644
--- a/Documentation/vm/ksm.txt
+++ b/Documentation/vm/ksm.txt
@@ -98,6 +98,50 @@ use_zero_pages - specifies whether empty pages (i.e. allocated pages
it is only effective for pages merged after the change.
Default: 0 (normal KSM behaviour as in earlier releases)
+max_page_sharing - Maximum sharing allowed for each KSM page. This
+ enforces a deduplication limit to avoid the virtual
+ memory rmap lists to grow too large. The minimum
+ value is 2 as a newly created KSM page will have at
+ least two sharers. The rmap walk has O(N)
+ complexity where N is the number of rmap_items
+ (i.e. virtual mappings) that are sharing the page,
+ which is in turn capped by max_page_sharing. So
+ this effectively spread the the linear O(N)
+ computational complexity from rmap walk context
+ over different KSM pages. The ksmd walk over the
+ stable_node "chains" is also O(N), but N is the
+ number of stable_node "dups", not the number of
+ rmap_items, so it has not a significant impact on
+ ksmd performance. In practice the best stable_node
+ "dup" candidate will be kept and found at the head
+ of the "dups" list. The higher this value the
+ faster KSM will merge the memory (because there
+ will be fewer stable_node dups queued into the
+ stable_node chain->hlist to check for pruning) and
+ the higher the deduplication factor will be, but
+ the slowest the worst case rmap walk could be for
+ any given KSM page. Slowing down the rmap_walk
+ means there will be higher latency for certain
+ virtual memory operations happening during
+ swapping, compaction, NUMA balancing and page
+ migration, in turn decreasing responsiveness for
+ the caller of those virtual memory operations. The
+ scheduler latency of other tasks not involved with
+ the VM operations doing the rmap walk is not
+ affected by this parameter as the rmap walks are
+ always schedule friendly themselves.
+
+stable_node_chains_prune_millisecs - How frequently to walk the whole
+ list of stable_node "dups" linked in the
+ stable_node "chains" in order to prune stale
+ stable_nodes. Smaller milllisecs values will free
+ up the KSM metadata with lower latency, but they
+ will make ksmd use more CPU during the scan. This
+ only applies to the stable_node chains so it's a
+ noop if not a single KSM page hit the
+ max_page_sharing yet (there would be no stable_node
+ chains in such case).
+
The effectiveness of KSM and MADV_MERGEABLE is shown in /sys/kernel/mm/ksm/:
pages_shared - how many shared pages are being used
@@ -106,10 +150,29 @@ pages_unshared - how many pages unique but repeatedly checked for merging
pages_volatile - how many pages changing too fast to be placed in a tree
full_scans - how many times all mergeable areas have been scanned
+stable_node_chains - number of stable node chains allocated, this is
+ effectively the number of KSM pages that hit the
+ max_page_sharing limit
+stable_node_dups - number of stable node dups queued into the
+ stable_node chains
+
A high ratio of pages_sharing to pages_shared indicates good sharing, but
a high ratio of pages_unshared to pages_sharing indicates wasted effort.
pages_volatile embraces several different kinds of activity, but a high
proportion there would also indicate poor use of madvise MADV_MERGEABLE.
+The maximum possible page_sharing/page_shared ratio is limited by the
+max_page_sharing tunable. To increase the ratio max_page_sharing must
+be increased accordingly.
+
+The stable_node_dups/stable_node_chains ratio is also affected by the
+max_page_sharing tunable, and an high ratio may indicate fragmentation
+in the stable_node dups, which could be solved by introducing
+fragmentation algorithms in ksmd which would refile rmap_items from
+one stable_node dup to another stable_node dup, in order to freeup
+stable_node "dups" with few rmap_items in them, but that may increase
+the ksmd CPU usage and possibly slowdown the readonly computations on
+the KSM pages of the applications.
+
Izik Eidus,
Hugh Dickins, 17 Nov 2009
diff --git a/Documentation/vm/numa b/Documentation/vm/numa
index a08f71647714..a31b85b9bb88 100644
--- a/Documentation/vm/numa
+++ b/Documentation/vm/numa
@@ -79,11 +79,8 @@ memory, Linux must decide whether to order the zonelists such that allocations
fall back to the same zone type on a different node, or to a different zone
type on the same node. This is an important consideration because some zones,
such as DMA or DMA32, represent relatively scarce resources. Linux chooses
-a default zonelist order based on the sizes of the various zone types relative
-to the total memory of the node and the total memory of the system. The
-default zonelist order may be overridden using the numa_zonelist_order kernel
-boot parameter or sysctl. [see Documentation/admin-guide/kernel-parameters.rst and
-Documentation/sysctl/vm.txt]
+a default Node ordered zonelist. This means it tries to fallback to other zones
+from the same node before using remote nodes which are ordered by NUMA distance.
By default, Linux will attempt to satisfy memory allocation requests from the
node to which the CPU that executes the request is assigned. Specifically,
diff --git a/Documentation/vm/swap_numa.txt b/Documentation/vm/swap_numa.txt
new file mode 100644
index 000000000000..d5960c9124f5
--- /dev/null
+++ b/Documentation/vm/swap_numa.txt
@@ -0,0 +1,69 @@
+Automatically bind swap device to numa node
+-------------------------------------------
+
+If the system has more than one swap device and swap device has the node
+information, we can make use of this information to decide which swap
+device to use in get_swap_pages() to get better performance.
+
+
+How to use this feature
+-----------------------
+
+Swap device has priority and that decides the order of it to be used. To make
+use of automatically binding, there is no need to manipulate priority settings
+for swap devices. e.g. on a 2 node machine, assume 2 swap devices swapA and
+swapB, with swapA attached to node 0 and swapB attached to node 1, are going
+to be swapped on. Simply swapping them on by doing:
+# swapon /dev/swapA
+# swapon /dev/swapB
+
+Then node 0 will use the two swap devices in the order of swapA then swapB and
+node 1 will use the two swap devices in the order of swapB then swapA. Note
+that the order of them being swapped on doesn't matter.
+
+A more complex example on a 4 node machine. Assume 6 swap devices are going to
+be swapped on: swapA and swapB are attached to node 0, swapC is attached to
+node 1, swapD and swapE are attached to node 2 and swapF is attached to node3.
+The way to swap them on is the same as above:
+# swapon /dev/swapA
+# swapon /dev/swapB
+# swapon /dev/swapC
+# swapon /dev/swapD
+# swapon /dev/swapE
+# swapon /dev/swapF
+
+Then node 0 will use them in the order of:
+swapA/swapB -> swapC -> swapD -> swapE -> swapF
+swapA and swapB will be used in a round robin mode before any other swap device.
+
+node 1 will use them in the order of:
+swapC -> swapA -> swapB -> swapD -> swapE -> swapF
+
+node 2 will use them in the order of:
+swapD/swapE -> swapA -> swapB -> swapC -> swapF
+Similaly, swapD and swapE will be used in a round robin mode before any
+other swap devices.
+
+node 3 will use them in the order of:
+swapF -> swapA -> swapB -> swapC -> swapD -> swapE
+
+
+Implementation details
+----------------------
+
+The current code uses a priority based list, swap_avail_list, to decide
+which swap device to use and if multiple swap devices share the same
+priority, they are used round robin. This change here replaces the single
+global swap_avail_list with a per-numa-node list, i.e. for each numa node,
+it sees its own priority based list of available swap devices. Swap
+device's priority can be promoted on its matching node's swap_avail_list.
+
+The current swap device's priority is set as: user can set a >=0 value,
+or the system will pick one starting from -1 then downwards. The priority
+value in the swap_avail_list is the negated value of the swap device's
+due to plist being sorted from low to high. The new policy doesn't change
+the semantics for priority >=0 cases, the previous starting from -1 then
+downwards now becomes starting from -2 then downwards and -1 is reserved
+as the promoted value. So if multiple swap devices are attached to the same
+node, they will all be promoted to priority -1 on that node's plist and will
+be used round robin before any other swap devices.
diff --git a/Documentation/watchdog/watchdog-parameters.txt b/Documentation/watchdog/watchdog-parameters.txt
index 914518aeb972..6f9d7b418917 100644
--- a/Documentation/watchdog/watchdog-parameters.txt
+++ b/Documentation/watchdog/watchdog-parameters.txt
@@ -117,7 +117,7 @@ nowayout: Watchdog cannot be stopped once started
-------------------------------------------------
iTCO_wdt:
heartbeat: Watchdog heartbeat in seconds.
- (5<=heartbeat<=74 (TCO v1) or 1226 (TCO v2), default=30)
+ (2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
nowayout: Watchdog cannot be stopped once started
(default=kernel config parameter)
-------------------------------------------------
@@ -369,6 +369,12 @@ timeout: Watchdog timeout in seconds. (0<timeout<N, default=60)
nowayout: Watchdog cannot be stopped once started
(default=kernel config parameter)
-------------------------------------------------
+uniphier_wdt:
+timeout: Watchdog timeout in power of two seconds.
+ (1 <= timeout <= 128, default=64)
+nowayout: Watchdog cannot be stopped once started
+ (default=kernel config parameter)
+-------------------------------------------------
w83627hf_wdt:
wdt_io: w83627hf/thf WDT io port (default 0x2E)
timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
diff --git a/Documentation/x86/amd-memory-encryption.txt b/Documentation/x86/amd-memory-encryption.txt
new file mode 100644
index 000000000000..f512ab718541
--- /dev/null
+++ b/Documentation/x86/amd-memory-encryption.txt
@@ -0,0 +1,68 @@
+Secure Memory Encryption (SME) is a feature found on AMD processors.
+
+SME provides the ability to mark individual pages of memory as encrypted using
+the standard x86 page tables. A page that is marked encrypted will be
+automatically decrypted when read from DRAM and encrypted when written to
+DRAM. SME can therefore be used to protect the contents of DRAM from physical
+attacks on the system.
+
+A page is encrypted when a page table entry has the encryption bit set (see
+below on how to determine its position). The encryption bit can also be
+specified in the cr3 register, allowing the PGD table to be encrypted. Each
+successive level of page tables can also be encrypted by setting the encryption
+bit in the page table entry that points to the next table. This allows the full
+page table hierarchy to be encrypted. Note, this means that just because the
+encryption bit is set in cr3, doesn't imply the full hierarchy is encyrpted.
+Each page table entry in the hierarchy needs to have the encryption bit set to
+achieve that. So, theoretically, you could have the encryption bit set in cr3
+so that the PGD is encrypted, but not set the encryption bit in the PGD entry
+for a PUD which results in the PUD pointed to by that entry to not be
+encrypted.
+
+Support for SME can be determined through the CPUID instruction. The CPUID
+function 0x8000001f reports information related to SME:
+
+ 0x8000001f[eax]:
+ Bit[0] indicates support for SME
+ 0x8000001f[ebx]:
+ Bits[5:0] pagetable bit number used to activate memory
+ encryption
+ Bits[11:6] reduction in physical address space, in bits, when
+ memory encryption is enabled (this only affects
+ system physical addresses, not guest physical
+ addresses)
+
+If support for SME is present, MSR 0xc00100010 (MSR_K8_SYSCFG) can be used to
+determine if SME is enabled and/or to enable memory encryption:
+
+ 0xc0010010:
+ Bit[23] 0 = memory encryption features are disabled
+ 1 = memory encryption features are enabled
+
+Linux relies on BIOS to set this bit if BIOS has determined that the reduction
+in the physical address space as a result of enabling memory encryption (see
+CPUID information above) will not conflict with the address space resource
+requirements for the system. If this bit is not set upon Linux startup then
+Linux itself will not set it and memory encryption will not be possible.
+
+The state of SME in the Linux kernel can be documented as follows:
+ - Supported:
+ The CPU supports SME (determined through CPUID instruction).
+
+ - Enabled:
+ Supported and bit 23 of MSR_K8_SYSCFG is set.
+
+ - Active:
+ Supported, Enabled and the Linux kernel is actively applying
+ the encryption bit to page table entries (the SME mask in the
+ kernel is non-zero).
+
+SME can also be enabled and activated in the BIOS. If SME is enabled and
+activated in the BIOS, then all memory accesses will be encrypted and it will
+not be necessary to activate the Linux memory encryption support. If the BIOS
+merely enables SME (sets bit 23 of the MSR_K8_SYSCFG), then Linux can activate
+memory encryption by default (CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT=y) or
+by supplying mem_encrypt=on on the kernel command line. However, if BIOS does
+not enable SME, then Linux will not be able to activate memory encryption, even
+if configured to do so by default or the mem_encrypt=on command line parameter
+is specified.
diff --git a/Documentation/x86/early-microcode.txt b/Documentation/x86/early-microcode.txt
deleted file mode 100644
index 07749e7f3d50..000000000000
--- a/Documentation/x86/early-microcode.txt
+++ /dev/null
@@ -1,70 +0,0 @@
-Early load microcode
-====================
-By Fenghua Yu <fenghua.yu@intel.com>
-
-Kernel can update microcode in early phase of boot time. Loading microcode early
-can fix CPU issues before they are observed during kernel boot time.
-
-Microcode is stored in an initrd file. The microcode is read from the initrd
-file and loaded to CPUs during boot time.
-
-The format of the combined initrd image is microcode in cpio format followed by
-the initrd image (maybe compressed). Kernel parses the combined initrd image
-during boot time. The microcode file in cpio name space is:
-on Intel: kernel/x86/microcode/GenuineIntel.bin
-on AMD : kernel/x86/microcode/AuthenticAMD.bin
-
-During BSP boot (before SMP starts), if the kernel finds the microcode file in
-the initrd file, it parses the microcode and saves matching microcode in memory.
-If matching microcode is found, it will be uploaded in BSP and later on in all
-APs.
-
-The cached microcode patch is applied when CPUs resume from a sleep state.
-
-There are two legacy user space interfaces to load microcode, either through
-/dev/cpu/microcode or through /sys/devices/system/cpu/microcode/reload file
-in sysfs.
-
-In addition to these two legacy methods, the early loading method described
-here is the third method with which microcode can be uploaded to a system's
-CPUs.
-
-The following example script shows how to generate a new combined initrd file in
-/boot/initrd-3.5.0.ucode.img with original microcode microcode.bin and
-original initrd image /boot/initrd-3.5.0.img.
-
-mkdir initrd
-cd initrd
-mkdir -p kernel/x86/microcode
-cp ../microcode.bin kernel/x86/microcode/GenuineIntel.bin (or AuthenticAMD.bin)
-find . | cpio -o -H newc >../ucode.cpio
-cd ..
-cat ucode.cpio /boot/initrd-3.5.0.img >/boot/initrd-3.5.0.ucode.img
-
-Builtin microcode
-=================
-
-We can also load builtin microcode supplied through the regular firmware
-builtin method CONFIG_FIRMWARE_IN_KERNEL. Only 64-bit is currently
-supported.
-
-Here's an example:
-
-CONFIG_FIRMWARE_IN_KERNEL=y
-CONFIG_EXTRA_FIRMWARE="intel-ucode/06-3a-09 amd-ucode/microcode_amd_fam15h.bin"
-CONFIG_EXTRA_FIRMWARE_DIR="/lib/firmware"
-
-This basically means, you have the following tree structure locally:
-
-/lib/firmware/
-|-- amd-ucode
-...
-| |-- microcode_amd_fam15h.bin
-...
-|-- intel-ucode
-...
-| |-- 06-3a-09
-...
-
-so that the build system can find those files and integrate them into
-the final kernel image. The early loader finds them and applies them.
diff --git a/Documentation/x86/intel_rdt_ui.txt b/Documentation/x86/intel_rdt_ui.txt
index c491a1b82de2..4d8848e4e224 100644
--- a/Documentation/x86/intel_rdt_ui.txt
+++ b/Documentation/x86/intel_rdt_ui.txt
@@ -6,8 +6,8 @@ Fenghua Yu <fenghua.yu@intel.com>
Tony Luck <tony.luck@intel.com>
Vikas Shivappa <vikas.shivappa@intel.com>
-This feature is enabled by the CONFIG_INTEL_RDT_A Kconfig and the
-X86 /proc/cpuinfo flag bits "rdt", "cat_l3" and "cdp_l3".
+This feature is enabled by the CONFIG_INTEL_RDT Kconfig and the
+X86 /proc/cpuinfo flag bits "rdt", "cqm", "cat_l3" and "cdp_l3".
To use the feature mount the file system:
@@ -17,6 +17,13 @@ mount options are:
"cdp": Enable code/data prioritization in L3 cache allocations.
+RDT features are orthogonal. A particular system may support only
+monitoring, only control, or both monitoring and control.
+
+The mount succeeds if either of allocation or monitoring is present, but
+only those files and directories supported by the system will be created.
+For more details on the behavior of the interface during monitoring
+and allocation, see the "Resource alloc and monitor groups" section.
Info directory
--------------
@@ -24,7 +31,12 @@ Info directory
The 'info' directory contains information about the enabled
resources. Each resource has its own subdirectory. The subdirectory
names reflect the resource names.
-Cache resource(L3/L2) subdirectory contains the following files:
+
+Each subdirectory contains the following files with respect to
+allocation:
+
+Cache resource(L3/L2) subdirectory contains the following files
+related to allocation:
"num_closids": The number of CLOSIDs which are valid for this
resource. The kernel uses the smallest number of
@@ -36,7 +48,15 @@ Cache resource(L3/L2) subdirectory contains the following files:
"min_cbm_bits": The minimum number of consecutive bits which
must be set when writing a mask.
-Memory bandwitdh(MB) subdirectory contains the following files:
+"shareable_bits": Bitmask of shareable resource with other executing
+ entities (e.g. I/O). User can use this when
+ setting up exclusive cache partitions. Note that
+ some platforms support devices that have their
+ own settings for cache use which can over-ride
+ these bits.
+
+Memory bandwitdh(MB) subdirectory contains the following files
+with respect to allocation:
"min_bandwidth": The minimum memory bandwidth percentage which
user can request.
@@ -52,48 +72,152 @@ Memory bandwitdh(MB) subdirectory contains the following files:
non-linear. This field is purely informational
only.
-Resource groups
----------------
+If RDT monitoring is available there will be an "L3_MON" directory
+with the following files:
+
+"num_rmids": The number of RMIDs available. This is the
+ upper bound for how many "CTRL_MON" + "MON"
+ groups can be created.
+
+"mon_features": Lists the monitoring events if
+ monitoring is enabled for the resource.
+
+"max_threshold_occupancy":
+ Read/write file provides the largest value (in
+ bytes) at which a previously used LLC_occupancy
+ counter can be considered for re-use.
+
+
+Resource alloc and monitor groups
+---------------------------------
+
Resource groups are represented as directories in the resctrl file
-system. The default group is the root directory. Other groups may be
-created as desired by the system administrator using the "mkdir(1)"
-command, and removed using "rmdir(1)".
+system. The default group is the root directory which, immediately
+after mounting, owns all the tasks and cpus in the system and can make
+full use of all resources.
+
+On a system with RDT control features additional directories can be
+created in the root directory that specify different amounts of each
+resource (see "schemata" below). The root and these additional top level
+directories are referred to as "CTRL_MON" groups below.
+
+On a system with RDT monitoring the root directory and other top level
+directories contain a directory named "mon_groups" in which additional
+directories can be created to monitor subsets of tasks in the CTRL_MON
+group that is their ancestor. These are called "MON" groups in the rest
+of this document.
+
+Removing a directory will move all tasks and cpus owned by the group it
+represents to the parent. Removing one of the created CTRL_MON groups
+will automatically remove all MON groups below it.
+
+All groups contain the following files:
+
+"tasks":
+ Reading this file shows the list of all tasks that belong to
+ this group. Writing a task id to the file will add a task to the
+ group. If the group is a CTRL_MON group the task is removed from
+ whichever previous CTRL_MON group owned the task and also from
+ any MON group that owned the task. If the group is a MON group,
+ then the task must already belong to the CTRL_MON parent of this
+ group. The task is removed from any previous MON group.
+
+
+"cpus":
+ Reading this file shows a bitmask of the logical CPUs owned by
+ this group. Writing a mask to this file will add and remove
+ CPUs to/from this group. As with the tasks file a hierarchy is
+ maintained where MON groups may only include CPUs owned by the
+ parent CTRL_MON group.
+
-There are three files associated with each group:
+"cpus_list":
+ Just like "cpus", only using ranges of CPUs instead of bitmasks.
-"tasks": A list of tasks that belongs to this group. Tasks can be
- added to a group by writing the task ID to the "tasks" file
- (which will automatically remove them from the previous
- group to which they belonged). New tasks created by fork(2)
- and clone(2) are added to the same group as their parent.
- If a pid is not in any sub partition, it is in root partition
- (i.e. default partition).
-"cpus": A bitmask of logical CPUs assigned to this group. Writing
- a new mask can add/remove CPUs from this group. Added CPUs
- are removed from their previous group. Removed ones are
- given to the default (root) group. You cannot remove CPUs
- from the default group.
+When control is enabled all CTRL_MON groups will also contain:
-"cpus_list": One or more CPU ranges of logical CPUs assigned to this
- group. Same rules apply like for the "cpus" file.
+"schemata":
+ A list of all the resources available to this group.
+ Each resource has its own line and format - see below for details.
-"schemata": A list of all the resources available to this group.
- Each resource has its own line and format - see below for
- details.
+When monitoring is enabled all MON groups will also contain:
-When a task is running the following rules define which resources
-are available to it:
+"mon_data":
+ This contains a set of files organized by L3 domain and by
+ RDT event. E.g. on a system with two L3 domains there will
+ be subdirectories "mon_L3_00" and "mon_L3_01". Each of these
+ directories have one file per event (e.g. "llc_occupancy",
+ "mbm_total_bytes", and "mbm_local_bytes"). In a MON group these
+ files provide a read out of the current value of the event for
+ all tasks in the group. In CTRL_MON groups these files provide
+ the sum for all tasks in the CTRL_MON group and all tasks in
+ MON groups. Please see example section for more details on usage.
+
+Resource allocation rules
+-------------------------
+When a task is running the following rules define which resources are
+available to it:
1) If the task is a member of a non-default group, then the schemata
-for that group is used.
+ for that group is used.
2) Else if the task belongs to the default group, but is running on a
-CPU that is assigned to some specific group, then the schemata for
-the CPU's group is used.
+ CPU that is assigned to some specific group, then the schemata for the
+ CPU's group is used.
3) Otherwise the schemata for the default group is used.
+Resource monitoring rules
+-------------------------
+1) If a task is a member of a MON group, or non-default CTRL_MON group
+ then RDT events for the task will be reported in that group.
+
+2) If a task is a member of the default CTRL_MON group, but is running
+ on a CPU that is assigned to some specific group, then the RDT events
+ for the task will be reported in that group.
+
+3) Otherwise RDT events for the task will be reported in the root level
+ "mon_data" group.
+
+
+Notes on cache occupancy monitoring and control
+-----------------------------------------------
+When moving a task from one group to another you should remember that
+this only affects *new* cache allocations by the task. E.g. you may have
+a task in a monitor group showing 3 MB of cache occupancy. If you move
+to a new group and immediately check the occupancy of the old and new
+groups you will likely see that the old group is still showing 3 MB and
+the new group zero. When the task accesses locations still in cache from
+before the move, the h/w does not update any counters. On a busy system
+you will likely see the occupancy in the old group go down as cache lines
+are evicted and re-used while the occupancy in the new group rises as
+the task accesses memory and loads into the cache are counted based on
+membership in the new group.
+
+The same applies to cache allocation control. Moving a task to a group
+with a smaller cache partition will not evict any cache lines. The
+process may continue to use them from the old partition.
+
+Hardware uses CLOSid(Class of service ID) and an RMID(Resource monitoring ID)
+to identify a control group and a monitoring group respectively. Each of
+the resource groups are mapped to these IDs based on the kind of group. The
+number of CLOSid and RMID are limited by the hardware and hence the creation of
+a "CTRL_MON" directory may fail if we run out of either CLOSID or RMID
+and creation of "MON" group may fail if we run out of RMIDs.
+
+max_threshold_occupancy - generic concepts
+------------------------------------------
+
+Note that an RMID once freed may not be immediately available for use as
+the RMID is still tagged the cache lines of the previous user of RMID.
+Hence such RMIDs are placed on limbo list and checked back if the cache
+occupancy has gone down. If there is a time when system has a lot of
+limbo RMIDs but which are not ready to be used, user may see an -EBUSY
+during mkdir.
+
+max_threshold_occupancy is a user configurable value to determine the
+occupancy at which an RMID can be freed.
Schemata files - general concepts
---------------------------------
@@ -143,22 +267,22 @@ SKUs. Using a high bandwidth and a low bandwidth setting on two threads
sharing a core will result in both threads being throttled to use the
low bandwidth.
-L3 details (code and data prioritization disabled)
---------------------------------------------------
+L3 schemata file details (code and data prioritization disabled)
+----------------------------------------------------------------
With CDP disabled the L3 schemata format is:
L3:<cache_id0>=<cbm>;<cache_id1>=<cbm>;...
-L3 details (CDP enabled via mount option to resctrl)
-----------------------------------------------------
+L3 schemata file details (CDP enabled via mount option to resctrl)
+------------------------------------------------------------------
When CDP is enabled L3 control is split into two separate resources
so you can specify independent masks for code and data like this:
L3data:<cache_id0>=<cbm>;<cache_id1>=<cbm>;...
L3code:<cache_id0>=<cbm>;<cache_id1>=<cbm>;...
-L2 details
-----------
+L2 schemata file details
+------------------------
L2 cache does not support code and data prioritization, so the
schemata format is always:
@@ -185,6 +309,8 @@ L3CODE:0=fffff;1=fffff;2=fffff;3=fffff
L3DATA:0=fffff;1=fffff;2=3c0;3=fffff
L3CODE:0=fffff;1=fffff;2=fffff;3=fffff
+Examples for RDT allocation usage:
+
Example 1
---------
On a two socket machine (one L3 cache per socket) with just four bits
@@ -410,3 +536,124 @@ void main(void)
/* code to read and write directory contents */
resctrl_release_lock(fd);
}
+
+Examples for RDT Monitoring along with allocation usage:
+
+Reading monitored data
+----------------------
+Reading an event file (for ex: mon_data/mon_L3_00/llc_occupancy) would
+show the current snapshot of LLC occupancy of the corresponding MON
+group or CTRL_MON group.
+
+
+Example 1 (Monitor CTRL_MON group and subset of tasks in CTRL_MON group)
+---------
+On a two socket machine (one L3 cache per socket) with just four bits
+for cache bit masks
+
+# mount -t resctrl resctrl /sys/fs/resctrl
+# cd /sys/fs/resctrl
+# mkdir p0 p1
+# echo "L3:0=3;1=c" > /sys/fs/resctrl/p0/schemata
+# echo "L3:0=3;1=3" > /sys/fs/resctrl/p1/schemata
+# echo 5678 > p1/tasks
+# echo 5679 > p1/tasks
+
+The default resource group is unmodified, so we have access to all parts
+of all caches (its schemata file reads "L3:0=f;1=f").
+
+Tasks that are under the control of group "p0" may only allocate from the
+"lower" 50% on cache ID 0, and the "upper" 50% of cache ID 1.
+Tasks in group "p1" use the "lower" 50% of cache on both sockets.
+
+Create monitor groups and assign a subset of tasks to each monitor group.
+
+# cd /sys/fs/resctrl/p1/mon_groups
+# mkdir m11 m12
+# echo 5678 > m11/tasks
+# echo 5679 > m12/tasks
+
+fetch data (data shown in bytes)
+
+# cat m11/mon_data/mon_L3_00/llc_occupancy
+16234000
+# cat m11/mon_data/mon_L3_01/llc_occupancy
+14789000
+# cat m12/mon_data/mon_L3_00/llc_occupancy
+16789000
+
+The parent ctrl_mon group shows the aggregated data.
+
+# cat /sys/fs/resctrl/p1/mon_data/mon_l3_00/llc_occupancy
+31234000
+
+Example 2 (Monitor a task from its creation)
+---------
+On a two socket machine (one L3 cache per socket)
+
+# mount -t resctrl resctrl /sys/fs/resctrl
+# cd /sys/fs/resctrl
+# mkdir p0 p1
+
+An RMID is allocated to the group once its created and hence the <cmd>
+below is monitored from its creation.
+
+# echo $$ > /sys/fs/resctrl/p1/tasks
+# <cmd>
+
+Fetch the data
+
+# cat /sys/fs/resctrl/p1/mon_data/mon_l3_00/llc_occupancy
+31789000
+
+Example 3 (Monitor without CAT support or before creating CAT groups)
+---------
+
+Assume a system like HSW has only CQM and no CAT support. In this case
+the resctrl will still mount but cannot create CTRL_MON directories.
+But user can create different MON groups within the root group thereby
+able to monitor all tasks including kernel threads.
+
+This can also be used to profile jobs cache size footprint before being
+able to allocate them to different allocation groups.
+
+# mount -t resctrl resctrl /sys/fs/resctrl
+# cd /sys/fs/resctrl
+# mkdir mon_groups/m01
+# mkdir mon_groups/m02
+
+# echo 3478 > /sys/fs/resctrl/mon_groups/m01/tasks
+# echo 2467 > /sys/fs/resctrl/mon_groups/m02/tasks
+
+Monitor the groups separately and also get per domain data. From the
+below its apparent that the tasks are mostly doing work on
+domain(socket) 0.
+
+# cat /sys/fs/resctrl/mon_groups/m01/mon_L3_00/llc_occupancy
+31234000
+# cat /sys/fs/resctrl/mon_groups/m01/mon_L3_01/llc_occupancy
+34555
+# cat /sys/fs/resctrl/mon_groups/m02/mon_L3_00/llc_occupancy
+31234000
+# cat /sys/fs/resctrl/mon_groups/m02/mon_L3_01/llc_occupancy
+32789
+
+
+Example 4 (Monitor real time tasks)
+-----------------------------------
+
+A single socket system which has real time tasks running on cores 4-7
+and non real time tasks on other cpus. We want to monitor the cache
+occupancy of the real time threads on these cores.
+
+# mount -t resctrl resctrl /sys/fs/resctrl
+# cd /sys/fs/resctrl
+# mkdir p1
+
+Move the cpus 4-7 over to p1
+# echo f0 > p0/cpus
+
+View the llc occupancy snapshot
+
+# cat /sys/fs/resctrl/p1/mon_data/mon_L3_00/llc_occupancy
+11234000
diff --git a/Documentation/x86/microcode.txt b/Documentation/x86/microcode.txt
new file mode 100644
index 000000000000..f57e1b45e628
--- /dev/null
+++ b/Documentation/x86/microcode.txt
@@ -0,0 +1,137 @@
+ The Linux Microcode Loader
+
+Authors: Fenghua Yu <fenghua.yu@intel.com>
+ Borislav Petkov <bp@suse.de>
+
+The kernel has a x86 microcode loading facility which is supposed to
+provide microcode loading methods in the OS. Potential use cases are
+updating the microcode on platforms beyond the OEM End-Of-Life support,
+and updating the microcode on long-running systems without rebooting.
+
+The loader supports three loading methods:
+
+1. Early load microcode
+=======================
+
+The kernel can update microcode very early during boot. Loading
+microcode early can fix CPU issues before they are observed during
+kernel boot time.
+
+The microcode is stored in an initrd file. During boot, it is read from
+it and loaded into the CPU cores.
+
+The format of the combined initrd image is microcode in (uncompressed)
+cpio format followed by the (possibly compressed) initrd image. The
+loader parses the combined initrd image during boot.
+
+The microcode files in cpio name space are:
+
+on Intel: kernel/x86/microcode/GenuineIntel.bin
+on AMD : kernel/x86/microcode/AuthenticAMD.bin
+
+During BSP (BootStrapping Processor) boot (pre-SMP), the kernel
+scans the microcode file in the initrd. If microcode matching the
+CPU is found, it will be applied in the BSP and later on in all APs
+(Application Processors).
+
+The loader also saves the matching microcode for the CPU in memory.
+Thus, the cached microcode patch is applied when CPUs resume from a
+sleep state.
+
+Here's a crude example how to prepare an initrd with microcode (this is
+normally done automatically by the distribution, when recreating the
+initrd, so you don't really have to do it yourself. It is documented
+here for future reference only).
+
+---
+ #!/bin/bash
+
+ if [ -z "$1" ]; then
+ echo "You need to supply an initrd file"
+ exit 1
+ fi
+
+ INITRD="$1"
+
+ DSTDIR=kernel/x86/microcode
+ TMPDIR=/tmp/initrd
+
+ rm -rf $TMPDIR
+
+ mkdir $TMPDIR
+ cd $TMPDIR
+ mkdir -p $DSTDIR
+
+ if [ -d /lib/firmware/amd-ucode ]; then
+ cat /lib/firmware/amd-ucode/microcode_amd*.bin > $DSTDIR/AuthenticAMD.bin
+ fi
+
+ if [ -d /lib/firmware/intel-ucode ]; then
+ cat /lib/firmware/intel-ucode/* > $DSTDIR/GenuineIntel.bin
+ fi
+
+ find . | cpio -o -H newc >../ucode.cpio
+ cd ..
+ mv $INITRD $INITRD.orig
+ cat ucode.cpio $INITRD.orig > $INITRD
+
+ rm -rf $TMPDIR
+---
+
+The system needs to have the microcode packages installed into
+/lib/firmware or you need to fixup the paths above if yours are
+somewhere else and/or you've downloaded them directly from the processor
+vendor's site.
+
+2. Late loading
+===============
+
+There are two legacy user space interfaces to load microcode, either through
+/dev/cpu/microcode or through /sys/devices/system/cpu/microcode/reload file
+in sysfs.
+
+The /dev/cpu/microcode method is deprecated because it needs a special
+userspace tool for that.
+
+The easier method is simply installing the microcode packages your distro
+supplies and running:
+
+# echo 1 > /sys/devices/system/cpu/microcode/reload
+
+as root.
+
+The loading mechanism looks for microcode blobs in
+/lib/firmware/{intel-ucode,amd-ucode}. The default distro installation
+packages already put them there.
+
+3. Builtin microcode
+====================
+
+The loader supports also loading of a builtin microcode supplied through
+the regular firmware builtin method CONFIG_FIRMWARE_IN_KERNEL. Only
+64-bit is currently supported.
+
+Here's an example:
+
+CONFIG_FIRMWARE_IN_KERNEL=y
+CONFIG_EXTRA_FIRMWARE="intel-ucode/06-3a-09 amd-ucode/microcode_amd_fam15h.bin"
+CONFIG_EXTRA_FIRMWARE_DIR="/lib/firmware"
+
+This basically means, you have the following tree structure locally:
+
+/lib/firmware/
+|-- amd-ucode
+...
+| |-- microcode_amd_fam15h.bin
+...
+|-- intel-ucode
+...
+| |-- 06-3a-09
+...
+
+so that the build system can find those files and integrate them into
+the final kernel image. The early loader finds them and applies them.
+
+Needless to say, this method is not the most flexible one because it
+requires rebuilding the kernel each time updated microcode from the CPU
+vendor is available.
diff --git a/Documentation/x86/orc-unwinder.txt b/Documentation/x86/orc-unwinder.txt
new file mode 100644
index 000000000000..af0c9a4c65a6
--- /dev/null
+++ b/Documentation/x86/orc-unwinder.txt
@@ -0,0 +1,179 @@
+ORC unwinder
+============
+
+Overview
+--------
+
+The kernel CONFIG_ORC_UNWINDER option enables the ORC unwinder, which is
+similar in concept to a DWARF unwinder. The difference is that the
+format of the ORC data is much simpler than DWARF, which in turn allows
+the ORC unwinder to be much simpler and faster.
+
+The ORC data consists of unwind tables which are generated by objtool.
+They contain out-of-band data which is used by the in-kernel ORC
+unwinder. Objtool generates the ORC data by first doing compile-time
+stack metadata validation (CONFIG_STACK_VALIDATION). After analyzing
+all the code paths of a .o file, it determines information about the
+stack state at each instruction address in the file and outputs that
+information to the .orc_unwind and .orc_unwind_ip sections.
+
+The per-object ORC sections are combined at link time and are sorted and
+post-processed at boot time. The unwinder uses the resulting data to
+correlate instruction addresses with their stack states at run time.
+
+
+ORC vs frame pointers
+---------------------
+
+With frame pointers enabled, GCC adds instrumentation code to every
+function in the kernel. The kernel's .text size increases by about
+3.2%, resulting in a broad kernel-wide slowdown. Measurements by Mel
+Gorman [1] have shown a slowdown of 5-10% for some workloads.
+
+In contrast, the ORC unwinder has no effect on text size or runtime
+performance, because the debuginfo is out of band. So if you disable
+frame pointers and enable the ORC unwinder, you get a nice performance
+improvement across the board, and still have reliable stack traces.
+
+Ingo Molnar says:
+
+ "Note that it's not just a performance improvement, but also an
+ instruction cache locality improvement: 3.2% .text savings almost
+ directly transform into a similarly sized reduction in cache
+ footprint. That can transform to even higher speedups for workloads
+ whose cache locality is borderline."
+
+Another benefit of ORC compared to frame pointers is that it can
+reliably unwind across interrupts and exceptions. Frame pointer based
+unwinds can sometimes skip the caller of the interrupted function, if it
+was a leaf function or if the interrupt hit before the frame pointer was
+saved.
+
+The main disadvantage of the ORC unwinder compared to frame pointers is
+that it needs more memory to store the ORC unwind tables: roughly 2-4MB
+depending on the kernel config.
+
+
+ORC vs DWARF
+------------
+
+ORC debuginfo's advantage over DWARF itself is that it's much simpler.
+It gets rid of the complex DWARF CFI state machine and also gets rid of
+the tracking of unnecessary registers. This allows the unwinder to be
+much simpler, meaning fewer bugs, which is especially important for
+mission critical oops code.
+
+The simpler debuginfo format also enables the unwinder to be much faster
+than DWARF, which is important for perf and lockdep. In a basic
+performance test by Jiri Slaby [2], the ORC unwinder was about 20x
+faster than an out-of-tree DWARF unwinder. (Note: That measurement was
+taken before some performance tweaks were added, which doubled
+performance, so the speedup over DWARF may be closer to 40x.)
+
+The ORC data format does have a few downsides compared to DWARF. ORC
+unwind tables take up ~50% more RAM (+1.3MB on an x86 defconfig kernel)
+than DWARF-based eh_frame tables.
+
+Another potential downside is that, as GCC evolves, it's conceivable
+that the ORC data may end up being *too* simple to describe the state of
+the stack for certain optimizations. But IMO this is unlikely because
+GCC saves the frame pointer for any unusual stack adjustments it does,
+so I suspect we'll really only ever need to keep track of the stack
+pointer and the frame pointer between call frames. But even if we do
+end up having to track all the registers DWARF tracks, at least we will
+still be able to control the format, e.g. no complex state machines.
+
+
+ORC unwind table generation
+---------------------------
+
+The ORC data is generated by objtool. With the existing compile-time
+stack metadata validation feature, objtool already follows all code
+paths, and so it already has all the information it needs to be able to
+generate ORC data from scratch. So it's an easy step to go from stack
+validation to ORC data generation.
+
+It should be possible to instead generate the ORC data with a simple
+tool which converts DWARF to ORC data. However, such a solution would
+be incomplete due to the kernel's extensive use of asm, inline asm, and
+special sections like exception tables.
+
+That could be rectified by manually annotating those special code paths
+using GNU assembler .cfi annotations in .S files, and homegrown
+annotations for inline asm in .c files. But asm annotations were tried
+in the past and were found to be unmaintainable. They were often
+incorrect/incomplete and made the code harder to read and keep updated.
+And based on looking at glibc code, annotating inline asm in .c files
+might be even worse.
+
+Objtool still needs a few annotations, but only in code which does
+unusual things to the stack like entry code. And even then, far fewer
+annotations are needed than what DWARF would need, so they're much more
+maintainable than DWARF CFI annotations.
+
+So the advantages of using objtool to generate ORC data are that it
+gives more accurate debuginfo, with very few annotations. It also
+insulates the kernel from toolchain bugs which can be very painful to
+deal with in the kernel since we often have to workaround issues in
+older versions of the toolchain for years.
+
+The downside is that the unwinder now becomes dependent on objtool's
+ability to reverse engineer GCC code flow. If GCC optimizations become
+too complicated for objtool to follow, the ORC data generation might
+stop working or become incomplete. (It's worth noting that livepatch
+already has such a dependency on objtool's ability to follow GCC code
+flow.)
+
+If newer versions of GCC come up with some optimizations which break
+objtool, we may need to revisit the current implementation. Some
+possible solutions would be asking GCC to make the optimizations more
+palatable, or having objtool use DWARF as an additional input, or
+creating a GCC plugin to assist objtool with its analysis. But for now,
+objtool follows GCC code quite well.
+
+
+Unwinder implementation details
+-------------------------------
+
+Objtool generates the ORC data by integrating with the compile-time
+stack metadata validation feature, which is described in detail in
+tools/objtool/Documentation/stack-validation.txt. After analyzing all
+the code paths of a .o file, it creates an array of orc_entry structs,
+and a parallel array of instruction addresses associated with those
+structs, and writes them to the .orc_unwind and .orc_unwind_ip sections
+respectively.
+
+The ORC data is split into the two arrays for performance reasons, to
+make the searchable part of the data (.orc_unwind_ip) more compact. The
+arrays are sorted in parallel at boot time.
+
+Performance is further improved by the use of a fast lookup table which
+is created at runtime. The fast lookup table associates a given address
+with a range of indices for the .orc_unwind table, so that only a small
+subset of the table needs to be searched.
+
+
+Etymology
+---------
+
+Orcs, fearsome creatures of medieval folklore, are the Dwarves' natural
+enemies. Similarly, the ORC unwinder was created in opposition to the
+complexity and slowness of DWARF.
+
+"Although Orcs rarely consider multiple solutions to a problem, they do
+excel at getting things done because they are creatures of action, not
+thought." [3] Similarly, unlike the esoteric DWARF unwinder, the
+veracious ORC unwinder wastes no time or siloconic effort decoding
+variable-length zero-extended unsigned-integer byte-coded
+state-machine-based debug information entries.
+
+Similar to how Orcs frequently unravel the well-intentioned plans of
+their adversaries, the ORC unwinder frequently unravels stacks with
+brutal, unyielding efficiency.
+
+ORC stands for Oops Rewind Capability.
+
+
+[1] https://lkml.kernel.org/r/20170602104048.jkkzssljsompjdwy@suse.de
+[2] https://lkml.kernel.org/r/d2ca5435-6386-29b8-db87-7f227c2b713a@suse.cz
+[3] http://dustin.wikidot.com/half-orcs-and-orcs
diff --git a/Documentation/x86/protection-keys.txt b/Documentation/x86/protection-keys.txt
index b64304540821..fa46dcb347bc 100644
--- a/Documentation/x86/protection-keys.txt
+++ b/Documentation/x86/protection-keys.txt
@@ -34,7 +34,7 @@ with a key. In this example WRPKRU is wrapped by a C function
called pkey_set().
int real_prot = PROT_READ|PROT_WRITE;
- pkey = pkey_alloc(0, PKEY_DENY_WRITE);
+ pkey = pkey_alloc(0, PKEY_DISABLE_WRITE);
ptr = mmap(NULL, PAGE_SIZE, PROT_NONE, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
ret = pkey_mprotect(ptr, PAGE_SIZE, real_prot, pkey);
... application runs here
@@ -42,9 +42,9 @@ called pkey_set().
Now, if the application needs to update the data at 'ptr', it can
gain access, do the update, then remove its write access:
- pkey_set(pkey, 0); // clear PKEY_DENY_WRITE
+ pkey_set(pkey, 0); // clear PKEY_DISABLE_WRITE
*ptr = foo; // assign something
- pkey_set(pkey, PKEY_DENY_WRITE); // set PKEY_DENY_WRITE again
+ pkey_set(pkey, PKEY_DISABLE_WRITE); // set PKEY_DISABLE_WRITE again
Now when it frees the memory, it will also free the pkey since it
is no longer in use:
diff --git a/Documentation/x86/x86_64/5level-paging.txt b/Documentation/x86/x86_64/5level-paging.txt
new file mode 100644
index 000000000000..087251a0d99c
--- /dev/null
+++ b/Documentation/x86/x86_64/5level-paging.txt
@@ -0,0 +1,64 @@
+== Overview ==
+
+Original x86-64 was limited by 4-level paing to 256 TiB of virtual address
+space and 64 TiB of physical address space. We are already bumping into
+this limit: some vendors offers servers with 64 TiB of memory today.
+
+To overcome the limitation upcoming hardware will introduce support for
+5-level paging. It is a straight-forward extension of the current page
+table structure adding one more layer of translation.
+
+It bumps the limits to 128 PiB of virtual address space and 4 PiB of
+physical address space. This "ought to be enough for anybody" ©.
+
+QEMU 2.9 and later support 5-level paging.
+
+Virtual memory layout for 5-level paging is described in
+Documentation/x86/x86_64/mm.txt
+
+== Enabling 5-level paging ==
+
+CONFIG_X86_5LEVEL=y enables the feature.
+
+So far, a kernel compiled with the option enabled will be able to boot
+only on machines that supports the feature -- see for 'la57' flag in
+/proc/cpuinfo.
+
+The plan is to implement boot-time switching between 4- and 5-level paging
+in the future.
+
+== User-space and large virtual address space ==
+
+On x86, 5-level paging enables 56-bit userspace virtual address space.
+Not all user space is ready to handle wide addresses. It's known that
+at least some JIT compilers use higher bits in pointers to encode their
+information. It collides with valid pointers with 5-level paging and
+leads to crashes.
+
+To mitigate this, we are not going to allocate virtual address space
+above 47-bit by default.
+
+But userspace can ask for allocation from full address space by
+specifying hint address (with or without MAP_FIXED) above 47-bits.
+
+If hint address set above 47-bit, but MAP_FIXED is not specified, we try
+to look for unmapped area by specified address. If it's already
+occupied, we look for unmapped area in *full* address space, rather than
+from 47-bit window.
+
+A high hint address would only affect the allocation in question, but not
+any future mmap()s.
+
+Specifying high hint address on older kernel or on machine without 5-level
+paging support is safe. The hint will be ignored and kernel will fall back
+to allocation from 47-bit address space.
+
+This approach helps to easily make application's memory allocator aware
+about large address space without manually tracking allocated virtual
+address space.
+
+One important case we need to handle here is interaction with MPX.
+MPX (without MAWA extension) cannot handle addresses above 47-bit, so we
+need to make sure that MPX cannot be enabled we already have VMA above
+the boundary and forbid creating such VMAs once MPX is enabled.
+
diff --git a/Documentation/x86/x86_64/boot-options.txt b/Documentation/x86/x86_64/boot-options.txt
index 61b611e9eeaf..b297c48389b9 100644
--- a/Documentation/x86/x86_64/boot-options.txt
+++ b/Documentation/x86/x86_64/boot-options.txt
@@ -36,7 +36,8 @@ Machine check
to broadcast MCEs.
mce=bootlog
Enable logging of machine checks left over from booting.
- Disabled by default on AMD because some BIOS leave bogus ones.
+ Disabled by default on AMD Fam10h and older because some BIOS
+ leave bogus ones.
If your BIOS doesn't do that it's a good idea to enable though
to make sure you log even machine check events that result
in a reboot. On Intel systems it is enabled by default.
diff --git a/Documentation/xillybus.txt b/Documentation/xillybus.txt
index 1660145b9969..2446ee303c09 100644
--- a/Documentation/xillybus.txt
+++ b/Documentation/xillybus.txt
@@ -1,12 +1,11 @@
+==========================================
+Xillybus driver for generic FPGA interface
+==========================================
- ==========================================
- Xillybus driver for generic FPGA interface
- ==========================================
+:Author: Eli Billauer, Xillybus Ltd. (http://xillybus.com)
+:Email: eli.billauer@gmail.com or as advertised on Xillybus' site.
-Author: Eli Billauer, Xillybus Ltd. (http://xillybus.com)
-Email: eli.billauer@gmail.com or as advertised on Xillybus' site.
-
-Contents:
+.. Contents:
- Introduction
-- Background
@@ -17,7 +16,7 @@ Contents:
-- Synchronization
-- Seekable pipes
-- Internals
+ - Internals
-- Source code organization
-- Pipe attributes
-- Host never reads from the FPGA
@@ -29,7 +28,7 @@ Contents:
-- The "nonempty" message (supporting poll)
-INTRODUCTION
+Introduction
============
Background
@@ -105,7 +104,7 @@ driver is used to work out of the box with any Xillybus IP core.
The data structure just mentioned should not be confused with PCI's
configuration space or the Flattened Device Tree.
-USAGE
+Usage
=====
User interface
@@ -117,11 +116,11 @@ names of these files depend on the IP core that is loaded in the FPGA (see
Probing below). To communicate with the FPGA, open the device file that
corresponds to the hardware FIFO you want to send data or receive data from,
and use plain write() or read() calls, just like with a regular pipe. In
-particular, it makes perfect sense to go:
+particular, it makes perfect sense to go::
-$ cat mydata > /dev/xillybus_thisfifo
+ $ cat mydata > /dev/xillybus_thisfifo
-$ cat /dev/xillybus_thatfifo > hisdata
+ $ cat /dev/xillybus_thatfifo > hisdata
possibly pressing CTRL-C as some stage, even though the xillybus_* pipes have
the capability to send an EOF (but may not use it).
@@ -178,7 +177,7 @@ the attached memory is done by seeking to the desired address, and calling
read() or write() as required.
-INTERNALS
+Internals
=========
Source code organization
@@ -365,7 +364,7 @@ into that page. It can be shown that all pages requested from the kernel
(except possibly for the last) are 100% utilized this way.
The "nonempty" message (supporting poll)
----------------------------------------
+----------------------------------------
In order to support the "poll" method (and hence select() ), there is a small
catch regarding the FPGA to host direction: The FPGA may have filled a DMA
diff --git a/Documentation/xtensa/mmu.txt b/Documentation/xtensa/mmu.txt
index 222a2c6748e6..5de8715d5bec 100644
--- a/Documentation/xtensa/mmu.txt
+++ b/Documentation/xtensa/mmu.txt
@@ -41,9 +41,9 @@ The scheme below assumes that the kernel is loaded below 0x40000000.
00..1F -> 00 -> 00 -> 00
The default location of IO peripherals is above 0xf0000000. This may be changed
-using a "ranges" property in a device tree simple-bus node. See ePAPR 1.1, §6.5
-for details on the syntax and semantic of simple-bus nodes. The following
-limitations apply:
+using a "ranges" property in a device tree simple-bus node. See the Devicetree
+Specification, section 4.5 for details on the syntax and semantics of
+simple-bus nodes. The following limitations apply:
1. Only top level simple-bus nodes are considered
diff --git a/Documentation/xz.txt b/Documentation/xz.txt
index 2cf3e2608de3..b2220d03aa50 100644
--- a/Documentation/xz.txt
+++ b/Documentation/xz.txt
@@ -1,121 +1,127 @@
-
+============================
XZ data compression in Linux
============================
Introduction
+============
- XZ is a general purpose data compression format with high compression
- ratio and relatively fast decompression. The primary compression
- algorithm (filter) is LZMA2. Additional filters can be used to improve
- compression ratio even further. E.g. Branch/Call/Jump (BCJ) filters
- improve compression ratio of executable data.
+XZ is a general purpose data compression format with high compression
+ratio and relatively fast decompression. The primary compression
+algorithm (filter) is LZMA2. Additional filters can be used to improve
+compression ratio even further. E.g. Branch/Call/Jump (BCJ) filters
+improve compression ratio of executable data.
- The XZ decompressor in Linux is called XZ Embedded. It supports
- the LZMA2 filter and optionally also BCJ filters. CRC32 is supported
- for integrity checking. The home page of XZ Embedded is at
- <http://tukaani.org/xz/embedded.html>, where you can find the
- latest version and also information about using the code outside
- the Linux kernel.
+The XZ decompressor in Linux is called XZ Embedded. It supports
+the LZMA2 filter and optionally also BCJ filters. CRC32 is supported
+for integrity checking. The home page of XZ Embedded is at
+<http://tukaani.org/xz/embedded.html>, where you can find the
+latest version and also information about using the code outside
+the Linux kernel.
- For userspace, XZ Utils provide a zlib-like compression library
- and a gzip-like command line tool. XZ Utils can be downloaded from
- <http://tukaani.org/xz/>.
+For userspace, XZ Utils provide a zlib-like compression library
+and a gzip-like command line tool. XZ Utils can be downloaded from
+<http://tukaani.org/xz/>.
XZ related components in the kernel
-
- The xz_dec module provides XZ decompressor with single-call (buffer
- to buffer) and multi-call (stateful) APIs. The usage of the xz_dec
- module is documented in include/linux/xz.h.
-
- The xz_dec_test module is for testing xz_dec. xz_dec_test is not
- useful unless you are hacking the XZ decompressor. xz_dec_test
- allocates a char device major dynamically to which one can write
- .xz files from userspace. The decompressed output is thrown away.
- Keep an eye on dmesg to see diagnostics printed by xz_dec_test.
- See the xz_dec_test source code for the details.
-
- For decompressing the kernel image, initramfs, and initrd, there
- is a wrapper function in lib/decompress_unxz.c. Its API is the
- same as in other decompress_*.c files, which is defined in
- include/linux/decompress/generic.h.
-
- scripts/xz_wrap.sh is a wrapper for the xz command line tool found
- from XZ Utils. The wrapper sets compression options to values suitable
- for compressing the kernel image.
-
- For kernel makefiles, two commands are provided for use with
- $(call if_needed). The kernel image should be compressed with
- $(call if_needed,xzkern) which will use a BCJ filter and a big LZMA2
- dictionary. It will also append a four-byte trailer containing the
- uncompressed size of the file, which is needed by the boot code.
- Other things should be compressed with $(call if_needed,xzmisc)
- which will use no BCJ filter and 1 MiB LZMA2 dictionary.
+===================================
+
+The xz_dec module provides XZ decompressor with single-call (buffer
+to buffer) and multi-call (stateful) APIs. The usage of the xz_dec
+module is documented in include/linux/xz.h.
+
+The xz_dec_test module is for testing xz_dec. xz_dec_test is not
+useful unless you are hacking the XZ decompressor. xz_dec_test
+allocates a char device major dynamically to which one can write
+.xz files from userspace. The decompressed output is thrown away.
+Keep an eye on dmesg to see diagnostics printed by xz_dec_test.
+See the xz_dec_test source code for the details.
+
+For decompressing the kernel image, initramfs, and initrd, there
+is a wrapper function in lib/decompress_unxz.c. Its API is the
+same as in other decompress_*.c files, which is defined in
+include/linux/decompress/generic.h.
+
+scripts/xz_wrap.sh is a wrapper for the xz command line tool found
+from XZ Utils. The wrapper sets compression options to values suitable
+for compressing the kernel image.
+
+For kernel makefiles, two commands are provided for use with
+$(call if_needed). The kernel image should be compressed with
+$(call if_needed,xzkern) which will use a BCJ filter and a big LZMA2
+dictionary. It will also append a four-byte trailer containing the
+uncompressed size of the file, which is needed by the boot code.
+Other things should be compressed with $(call if_needed,xzmisc)
+which will use no BCJ filter and 1 MiB LZMA2 dictionary.
Notes on compression options
+============================
- Since the XZ Embedded supports only streams with no integrity check or
- CRC32, make sure that you don't use some other integrity check type
- when encoding files that are supposed to be decoded by the kernel. With
- liblzma, you need to use either LZMA_CHECK_NONE or LZMA_CHECK_CRC32
- when encoding. With the xz command line tool, use --check=none or
- --check=crc32.
-
- Using CRC32 is strongly recommended unless there is some other layer
- which will verify the integrity of the uncompressed data anyway.
- Double checking the integrity would probably be waste of CPU cycles.
- Note that the headers will always have a CRC32 which will be validated
- by the decoder; you can only change the integrity check type (or
- disable it) for the actual uncompressed data.
-
- In userspace, LZMA2 is typically used with dictionary sizes of several
- megabytes. The decoder needs to have the dictionary in RAM, thus big
- dictionaries cannot be used for files that are intended to be decoded
- by the kernel. 1 MiB is probably the maximum reasonable dictionary
- size for in-kernel use (maybe more is OK for initramfs). The presets
- in XZ Utils may not be optimal when creating files for the kernel,
- so don't hesitate to use custom settings. Example:
-
- xz --check=crc32 --lzma2=dict=512KiB inputfile
-
- An exception to above dictionary size limitation is when the decoder
- is used in single-call mode. Decompressing the kernel itself is an
- example of this situation. In single-call mode, the memory usage
- doesn't depend on the dictionary size, and it is perfectly fine to
- use a big dictionary: for maximum compression, the dictionary should
- be at least as big as the uncompressed data itself.
+Since the XZ Embedded supports only streams with no integrity check or
+CRC32, make sure that you don't use some other integrity check type
+when encoding files that are supposed to be decoded by the kernel. With
+liblzma, you need to use either LZMA_CHECK_NONE or LZMA_CHECK_CRC32
+when encoding. With the xz command line tool, use --check=none or
+--check=crc32.
+
+Using CRC32 is strongly recommended unless there is some other layer
+which will verify the integrity of the uncompressed data anyway.
+Double checking the integrity would probably be waste of CPU cycles.
+Note that the headers will always have a CRC32 which will be validated
+by the decoder; you can only change the integrity check type (or
+disable it) for the actual uncompressed data.
+
+In userspace, LZMA2 is typically used with dictionary sizes of several
+megabytes. The decoder needs to have the dictionary in RAM, thus big
+dictionaries cannot be used for files that are intended to be decoded
+by the kernel. 1 MiB is probably the maximum reasonable dictionary
+size for in-kernel use (maybe more is OK for initramfs). The presets
+in XZ Utils may not be optimal when creating files for the kernel,
+so don't hesitate to use custom settings. Example::
+
+ xz --check=crc32 --lzma2=dict=512KiB inputfile
+
+An exception to above dictionary size limitation is when the decoder
+is used in single-call mode. Decompressing the kernel itself is an
+example of this situation. In single-call mode, the memory usage
+doesn't depend on the dictionary size, and it is perfectly fine to
+use a big dictionary: for maximum compression, the dictionary should
+be at least as big as the uncompressed data itself.
Future plans
+============
- Creating a limited XZ encoder may be considered if people think it is
- useful. LZMA2 is slower to compress than e.g. Deflate or LZO even at
- the fastest settings, so it isn't clear if LZMA2 encoder is wanted
- into the kernel.
+Creating a limited XZ encoder may be considered if people think it is
+useful. LZMA2 is slower to compress than e.g. Deflate or LZO even at
+the fastest settings, so it isn't clear if LZMA2 encoder is wanted
+into the kernel.
- Support for limited random-access reading is planned for the
- decompression code. I don't know if it could have any use in the
- kernel, but I know that it would be useful in some embedded projects
- outside the Linux kernel.
+Support for limited random-access reading is planned for the
+decompression code. I don't know if it could have any use in the
+kernel, but I know that it would be useful in some embedded projects
+outside the Linux kernel.
Conformance to the .xz file format specification
+================================================
- There are a couple of corner cases where things have been simplified
- at expense of detecting errors as early as possible. These should not
- matter in practice all, since they don't cause security issues. But
- it is good to know this if testing the code e.g. with the test files
- from XZ Utils.
+There are a couple of corner cases where things have been simplified
+at expense of detecting errors as early as possible. These should not
+matter in practice all, since they don't cause security issues. But
+it is good to know this if testing the code e.g. with the test files
+from XZ Utils.
Reporting bugs
+==============
- Before reporting a bug, please check that it's not fixed already
- at upstream. See <http://tukaani.org/xz/embedded.html> to get the
- latest code.
+Before reporting a bug, please check that it's not fixed already
+at upstream. See <http://tukaani.org/xz/embedded.html> to get the
+latest code.
- Report bugs to <lasse.collin@tukaani.org> or visit #tukaani on
- Freenode and talk to Larhzu. I don't actively read LKML or other
- kernel-related mailing lists, so if there's something I should know,
- you should email to me personally or use IRC.
+Report bugs to <lasse.collin@tukaani.org> or visit #tukaani on
+Freenode and talk to Larhzu. I don't actively read LKML or other
+kernel-related mailing lists, so if there's something I should know,
+you should email to me personally or use IRC.
- Don't bother Igor Pavlov with questions about the XZ implementation
- in the kernel or about XZ Utils. While these two implementations
- include essential code that is directly based on Igor Pavlov's code,
- these implementations aren't maintained nor supported by him.
+Don't bother Igor Pavlov with questions about the XZ implementation
+in the kernel or about XZ Utils. While these two implementations
+include essential code that is directly based on Igor Pavlov's code,
+these implementations aren't maintained nor supported by him.
diff --git a/Documentation/zorro.txt b/Documentation/zorro.txt
index d530971beb00..664072b017e3 100644
--- a/Documentation/zorro.txt
+++ b/Documentation/zorro.txt
@@ -1,12 +1,13 @@
- Writing Device Drivers for Zorro Devices
- ----------------------------------------
+========================================
+Writing Device Drivers for Zorro Devices
+========================================
-Written by Geert Uytterhoeven <geert@linux-m68k.org>
-Last revised: September 5, 2003
+:Author: Written by Geert Uytterhoeven <geert@linux-m68k.org>
+:Last revised: September 5, 2003
-1. Introduction
----------------
+Introduction
+------------
The Zorro bus is the bus used in the Amiga family of computers. Thanks to
AutoConfig(tm), it's 100% Plug-and-Play.
@@ -20,12 +21,12 @@ There are two types of Zorro buses, Zorro II and Zorro III:
with Zorro II. The Zorro III address space lies outside the first 16 MB.
-2. Probing for Zorro Devices
-----------------------------
+Probing for Zorro Devices
+-------------------------
-Zorro devices are found by calling `zorro_find_device()', which returns a
-pointer to the `next' Zorro device with the specified Zorro ID. A probe loop
-for the board with Zorro ID `ZORRO_PROD_xxx' looks like:
+Zorro devices are found by calling ``zorro_find_device()``, which returns a
+pointer to the ``next`` Zorro device with the specified Zorro ID. A probe loop
+for the board with Zorro ID ``ZORRO_PROD_xxx`` looks like::
struct zorro_dev *z = NULL;
@@ -35,8 +36,8 @@ for the board with Zorro ID `ZORRO_PROD_xxx' looks like:
...
}
-`ZORRO_WILDCARD' acts as a wildcard and finds any Zorro device. If your driver
-supports different types of boards, you can use a construct like:
+``ZORRO_WILDCARD`` acts as a wildcard and finds any Zorro device. If your driver
+supports different types of boards, you can use a construct like::
struct zorro_dev *z = NULL;
@@ -49,24 +50,24 @@ supports different types of boards, you can use a construct like:
}
-3. Zorro Resources
-------------------
+Zorro Resources
+---------------
Before you can access a Zorro device's registers, you have to make sure it's
not yet in use. This is done using the I/O memory space resource management
-functions:
+functions::
request_mem_region()
release_mem_region()
-Shortcuts to claim the whole device's address space are provided as well:
+Shortcuts to claim the whole device's address space are provided as well::
zorro_request_device
zorro_release_device
-4. Accessing the Zorro Address Space
-------------------------------------
+Accessing the Zorro Address Space
+---------------------------------
The address regions in the Zorro device resources are Zorro bus address
regions. Due to the identity bus-physical address mapping on the Zorro bus,
@@ -78,26 +79,26 @@ The treatment of these regions depends on the type of Zorro space:
explicitly using z_ioremap().
Conversion from bus/physical Zorro II addresses to kernel virtual addresses
- and vice versa is done using:
+ and vice versa is done using::
virt_addr = ZTWO_VADDR(bus_addr);
bus_addr = ZTWO_PADDR(virt_addr);
- Zorro III address space must be mapped explicitly using z_ioremap() first
- before it can be accessed:
+ before it can be accessed::
virt_addr = z_ioremap(bus_addr, size);
...
z_iounmap(virt_addr);
-5. References
--------------
+References
+----------
-linux/include/linux/zorro.h
-linux/include/uapi/linux/zorro.h
-linux/include/uapi/linux/zorro_ids.h
-linux/arch/m68k/include/asm/zorro.h
-linux/drivers/zorro
-/proc/bus/zorro
+#. linux/include/linux/zorro.h
+#. linux/include/uapi/linux/zorro.h
+#. linux/include/uapi/linux/zorro_ids.h
+#. linux/arch/m68k/include/asm/zorro.h
+#. linux/drivers/zorro
+#. /proc/bus/zorro
diff --git a/MAINTAINERS b/MAINTAINERS
index 759dce7bb7c3..e652a3e2929d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -155,7 +155,7 @@ S: Maintained
F: drivers/scsi/53c700*
6LOWPAN GENERIC (BTLE/IEEE 802.15.4)
-M: Alexander Aring <aar@pengutronix.de>
+M: Alexander Aring <alex.aring@gmail.com>
M: Jukka Rissanen <jukka.rissanen@linux.intel.com>
L: linux-bluetooth@vger.kernel.org
L: linux-wpan@vger.kernel.org
@@ -205,7 +205,6 @@ F: include/net/9p/
F: include/uapi/linux/virtio_9p.h
F: include/trace/events/9p.h
-
A8293 MEDIA DRIVER
M: Antti Palosaari <crope@iki.fi>
L: linux-media@vger.kernel.org
@@ -302,6 +301,7 @@ S: Supported
F: drivers/acpi/
F: drivers/pnp/pnpacpi/
F: include/linux/acpi.h
+F: include/linux/fwnode.h
F: include/acpi/
F: Documentation/acpi/
F: Documentation/ABI/testing/sysfs-bus-acpi
@@ -311,6 +311,14 @@ F: drivers/pci/*/*acpi*
F: drivers/pci/*/*/*acpi*
F: tools/power/acpi/
+ACPI APEI
+M: "Rafael J. Wysocki" <rjw@rjwysocki.net>
+M: Len Brown <lenb@kernel.org>
+L: linux-acpi@vger.kernel.org
+R: Tony Luck <tony.luck@intel.com>
+R: Borislav Petkov <bp@alien8.de>
+F: drivers/acpi/apei/
+
ACPI COMPONENT ARCHITECTURE (ACPICA)
M: Robert Moore <robert.moore@intel.com>
M: Lv Zheng <lv.zheng@intel.com>
@@ -344,6 +352,18 @@ L: linux-acpi@vger.kernel.org
S: Maintained
F: drivers/acpi/arm64
+ACPI PMIC DRIVERS
+M: "Rafael J. Wysocki" <rjw@rjwysocki.net>
+M: Len Brown <lenb@kernel.org>
+R: Andy Shevchenko <andy@infradead.org>
+R: Mika Westerberg <mika.westerberg@linux.intel.com>
+L: linux-acpi@vger.kernel.org
+Q: https://patchwork.kernel.org/project/linux-acpi/list/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
+B: https://bugzilla.kernel.org
+S: Supported
+F: drivers/acpi/pmic/
+
ACPI THERMAL DRIVER
M: Zhang Rui <rui.zhang@intel.com>
L: linux-acpi@vger.kernel.org
@@ -478,7 +498,7 @@ L: linux-hwmon@vger.kernel.org
S: Maintained
F: Documentation/hwmon/ads1015
F: drivers/hwmon/ads1015.c
-F: include/linux/i2c/ads1015.h
+F: include/linux/platform_data/ads1015.h
ADT746X FAN DRIVER
M: Colin Leroy <colin@colino.net>
@@ -492,13 +512,6 @@ S: Maintained
F: Documentation/hwmon/adt7475
F: drivers/hwmon/adt7475.c
-ADXL34X THREE-AXIS DIGITAL ACCELEROMETER DRIVER (ADXL345/ADXL346)
-M: Michael Hennerich <michael.hennerich@analog.com>
-W: http://wiki.analog.com/ADXL345
-W: http://ez.analog.com/community/linux-device-drivers
-S: Supported
-F: drivers/input/misc/adxl34x.c
-
ADVANSYS SCSI DRIVER
M: Matthew Wilcox <matthew@wil.cx>
M: Hannes Reinecke <hare@suse.com>
@@ -507,6 +520,13 @@ S: Maintained
F: Documentation/scsi/advansys.txt
F: drivers/scsi/advansys.c
+ADXL34X THREE-AXIS DIGITAL ACCELEROMETER DRIVER (ADXL345/ADXL346)
+M: Michael Hennerich <michael.hennerich@analog.com>
+W: http://wiki.analog.com/ADXL345
+W: http://ez.analog.com/community/linux-device-drivers
+S: Supported
+F: drivers/input/misc/adxl34x.c
+
AEDSP16 DRIVER
M: Riccardo Facchetti <fizban@tin.it>
S: Maintained
@@ -636,6 +656,11 @@ ALPS PS/2 TOUCHPAD DRIVER
R: Pali Rohár <pali.rohar@gmail.com>
F: drivers/input/mouse/alps.*
+ALTERA I2C CONTROLLER DRIVER
+M: Thor Thayer <thor.thayer@linux.intel.com>
+S: Maintained
+F: drivers/i2c/busses/i2c-altera.c
+
ALTERA MAILBOX DRIVER
M: Ley Foon Tan <lftan@altera.com>
L: nios2-dev@lists.rocketboards.org (moderated for non-subscribers)
@@ -770,6 +795,12 @@ W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/media/i2c/adv7180.c
+ANALOG DEVICES INC ADV748X DRIVER
+M: Kieran Bingham <kieran.bingham@ideasonboard.com>
+L: linux-media@vger.kernel.org
+S: Maintained
+F: drivers/media/i2c/adv748x/*
+
ANALOG DEVICES INC ADV7511 DRIVER
M: Hans Verkuil <hans.verkuil@cisco.com>
L: linux-media@vger.kernel.org
@@ -808,6 +839,12 @@ W: http://blackfin.uclinux.org/
S: Supported
F: sound/soc/blackfin/*
+ANALOG DEVICES INC DMA DRIVERS
+M: Lars-Peter Clausen <lars@metafoo.de>
+W: http://ez.analog.com/community/linux-device-drivers
+S: Supported
+F: drivers/dma/dma-axi-dmac.c
+
ANALOG DEVICES INC IIO DRIVERS
M: Lars-Peter Clausen <lars@metafoo.de>
M: Michael Hennerich <Michael.Hennerich@analog.com>
@@ -820,12 +857,6 @@ X: drivers/iio/*/adjd*
F: drivers/staging/iio/*/ad*
F: drivers/staging/iio/trigger/iio-trig-bfin-timer.c
-ANALOG DEVICES INC DMA DRIVERS
-M: Lars-Peter Clausen <lars@metafoo.de>
-W: http://ez.analog.com/community/linux-device-drivers
-S: Supported
-F: drivers/dma/dma-axi-dmac.c
-
ANDROID CONFIG FRAGMENTS
M: Rob Herring <robh@kernel.org>
S: Supported
@@ -841,6 +872,12 @@ S: Supported
F: drivers/android/
F: drivers/staging/android/
+ANDROID GOLDFISH RTC DRIVER
+M: Miodrag Dinic <miodrag.dinic@imgtec.com>
+S: Supported
+F: Documentation/devicetree/bindings/rtc/google,goldfish-rtc.txt
+F: drivers/rtc/rtc-goldfish.c
+
ANDROID ION DRIVER
M: Laura Abbott <labbott@redhat.com>
M: Sumit Semwal <sumit.semwal@linaro.org>
@@ -872,6 +909,15 @@ F: include/linux/apm_bios.h
F: include/uapi/linux/apm_bios.h
F: drivers/char/apm-emulation.c
+APPARMOR SECURITY MODULE
+M: John Johansen <john.johansen@canonical.com>
+L: apparmor@lists.ubuntu.com (subscribers-only, general discussion)
+W: apparmor.wiki.kernel.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jj/apparmor-dev.git
+S: Supported
+F: security/apparmor/
+F: Documentation/admin-guide/LSM/apparmor.rst
+
APPLE BCM5974 MULTITOUCH DRIVER
M: Henrik Rydberg <rydberg@bitmath.org>
L: linux-input@vger.kernel.org
@@ -895,6 +941,18 @@ M: Duc Dang <dhdang@apm.com>
S: Supported
F: arch/arm64/boot/dts/apm/
+APPLIED MICRO (APM) X-GENE SOC EDAC
+M: Loc Ho <lho@apm.com>
+S: Supported
+F: drivers/edac/xgene_edac.c
+F: Documentation/devicetree/bindings/edac/apm-xgene-edac.txt
+
+APPLIED MICRO (APM) X-GENE SOC ETHERNET (V2) DRIVER
+M: Iyappan Subramanian <isubramanian@apm.com>
+M: Keyur Chudgar <kchudgar@apm.com>
+S: Supported
+F: drivers/net/ethernet/apm/xgene-v2/
+
APPLIED MICRO (APM) X-GENE SOC ETHERNET DRIVER
M: Iyappan Subramanian <isubramanian@apm.com>
M: Keyur Chudgar <kchudgar@apm.com>
@@ -905,12 +963,6 @@ F: drivers/net/phy/mdio-xgene.c
F: Documentation/devicetree/bindings/net/apm-xgene-enet.txt
F: Documentation/devicetree/bindings/net/apm-xgene-mdio.txt
-APPLIED MICRO (APM) X-GENE SOC ETHERNET (V2) DRIVER
-M: Iyappan Subramanian <isubramanian@apm.com>
-M: Keyur Chudgar <kchudgar@apm.com>
-S: Supported
-F: drivers/net/ethernet/apm/xgene-v2/
-
APPLIED MICRO (APM) X-GENE SOC PMU
M: Tai Nguyen <ttnguyen@apm.com>
S: Supported
@@ -930,6 +982,12 @@ S: Maintained
F: drivers/video/fbdev/arcfb.c
F: drivers/video/fbdev/core/fb_defio.c
+ARC PGU DRM DRIVER
+M: Alexey Brodkin <abrodkin@synopsys.com>
+S: Supported
+F: drivers/gpu/drm/arc/
+F: Documentation/devicetree/bindings/display/snps,arcpgu.txt
+
ARCNET NETWORK LAYER
M: Michael Grzeschik <m.grzeschik@pengutronix.de>
L: netdev@vger.kernel.org
@@ -937,12 +995,6 @@ S: Maintained
F: drivers/net/arcnet/
F: include/uapi/linux/if_arcnet.h
-ARC PGU DRM DRIVER
-M: Alexey Brodkin <abrodkin@synopsys.com>
-S: Supported
-F: drivers/gpu/drm/arc/
-F: Documentation/devicetree/bindings/display/snps,arcpgu.txt
-
ARM ARCHITECTED TIMER DRIVER
M: Mark Rutland <mark.rutland@arm.com>
M: Marc Zyngier <marc.zyngier@arm.com>
@@ -995,18 +1047,17 @@ S: Maintained
T: git git://git.armlinux.org.uk/~rmk/linux-arm.git
F: arch/arm/
-ARM SUB-ARCHITECTURES
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S: Maintained
-F: arch/arm/mach-*/
-F: arch/arm/plat-*/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc.git
-
ARM PRIMECELL AACI PL041 DRIVER
M: Russell King <linux@armlinux.org.uk>
S: Maintained
F: sound/arm/aaci.*
+ARM PRIMECELL BUS SUPPORT
+M: Russell King <linux@armlinux.org.uk>
+S: Maintained
+F: drivers/amba/
+F: include/linux/amba/bus.h
+
ARM PRIMECELL CLCD PL110 DRIVER
M: Russell King <linux@armlinux.org.uk>
S: Maintained
@@ -1030,11 +1081,38 @@ S: Maintained
F: drivers/tty/serial/amba-pl01*.c
F: include/linux/amba/serial.h
-ARM PRIMECELL BUS SUPPORT
-M: Russell King <linux@armlinux.org.uk>
+ARM SMMU DRIVERS
+M: Will Deacon <will.deacon@arm.com>
+R: Robin Murphy <robin.murphy@arm.com>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
-F: drivers/amba/
-F: include/linux/amba/bus.h
+F: drivers/iommu/arm-smmu.c
+F: drivers/iommu/arm-smmu-v3.c
+F: drivers/iommu/io-pgtable-arm.c
+F: drivers/iommu/io-pgtable-arm-v7s.c
+
+ARM SUB-ARCHITECTURES
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+F: arch/arm/mach-*/
+F: arch/arm/plat-*/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc.git
+
+ARM/ACTIONS SEMI ARCHITECTURE
+M: Andreas Färber <afaerber@suse.de>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+N: owl
+F: arch/arm/mach-actions/
+F: arch/arm/boot/dts/owl-*
+F: arch/arm64/boot/dts/actions/
+F: drivers/clocksource/owl-*
+F: drivers/soc/actions/
+F: include/dt-bindings/power/owl-*
+F: include/linux/soc/actions/
+F: Documentation/devicetree/bindings/arm/actions.txt
+F: Documentation/devicetree/bindings/power/actions,owl-sps.txt
+F: Documentation/devicetree/bindings/timer/actions,owl-timer.txt
ARM/ADS SPHERE MACHINE SUPPORT
M: Lennert Buytenhek <kernel@wantstofly.org>
@@ -1051,6 +1129,11 @@ M: Lennert Buytenhek <kernel@wantstofly.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
+ARM/Allwinner SoC Clock Support
+M: Emilio López <emilio@elopez.com.ar>
+S: Maintained
+F: drivers/clk/sunxi/
+
ARM/Allwinner sunXi SoC support
M: Maxime Ripard <maxime.ripard@free-electrons.com>
M: Chen-Yu Tsai <wens@csie.org>
@@ -1065,10 +1148,15 @@ F: drivers/pinctrl/sunxi/
F: drivers/soc/sunxi/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux.git
-ARM/Allwinner SoC Clock Support
-M: Emilio López <emilio@elopez.com.ar>
+ARM/Amlogic Meson SoC CLOCK FRAMEWORK
+M: Neil Armstrong <narmstrong@baylibre.com>
+M: Jerome Brunet <jbrunet@baylibre.com>
+L: linux-amlogic@lists.infradead.org
S: Maintained
-F: drivers/clk/sunxi/
+F: drivers/clk/meson/
+F: include/dt-bindings/clock/meson*
+F: include/dt-bindings/clock/gxbb*
+F: Documentation/devicetree/bindings/clock/amlogic*
ARM/Amlogic Meson SoC support
M: Carlo Caione <carlo@caione.org>
@@ -1080,20 +1168,10 @@ S: Maintained
F: arch/arm/mach-meson/
F: arch/arm/boot/dts/meson*
F: arch/arm64/boot/dts/amlogic/
-F: drivers/pinctrl/meson/
+F: drivers/pinctrl/meson/
F: drivers/mmc/host/meson*
N: meson
-ARM/Amlogic Meson SoC CLOCK FRAMEWORK
-M: Neil Armstrong <narmstrong@baylibre.com>
-M: Jerome Brunet <jbrunet@baylibre.com>
-L: linux-amlogic@lists.infradead.org
-S: Maintained
-F: drivers/clk/meson/
-F: include/dt-bindings/clock/meson*
-F: include/dt-bindings/clock/gxbb*
-F: Documentation/devicetree/bindings/clock/amlogic*
-
ARM/Annapurna Labs ALPINE ARCHITECTURE
M: Tsahee Zidenberg <tsahee@annapurnalabs.com>
M: Antoine Tenart <antoine.tenart@free-electrons.com>
@@ -1113,9 +1191,22 @@ L: linux-arm-kernel@axis.com
F: arch/arm/mach-artpec
F: arch/arm/boot/dts/artpec6*
F: drivers/clk/axis
+F: drivers/crypto/axis
F: drivers/pinctrl/pinctrl-artpec*
F: Documentation/devicetree/bindings/pinctrl/axis,artpec6-pinctrl.txt
+ARM/ASPEED I2C DRIVER
+M: Brendan Higgins <brendanhiggins@google.com>
+R: Benjamin Herrenschmidt <benh@kernel.crashing.org>
+R: Joel Stanley <joel@jms.id.au>
+L: linux-i2c@vger.kernel.org
+L: openbmc@lists.ozlabs.org (moderated for non-subscribers)
+S: Maintained
+F: drivers/irqchip/irq-aspeed-i2c-ic.c
+F: drivers/i2c/busses/i2c-aspeed.c
+F: Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2400-i2c-ic.txt
+F: Documentation/devicetree/bindings/i2c/i2c-aspeed.txt
+
ARM/ASPEED MACHINE SUPPORT
M: Joel Stanley <joel@jms.id.au>
S: Maintained
@@ -1123,6 +1214,11 @@ F: arch/arm/mach-aspeed/
F: arch/arm/boot/dts/aspeed-*
F: drivers/*/*aspeed*
+ARM/ATMEL AT91 Clock Support
+M: Boris Brezillon <boris.brezillon@free-electrons.com>
+S: Maintained
+F: drivers/clk/at91
+
ARM/ATMEL AT91RM9200, AT91SAM9 AND SAMA5 SOC SUPPORT
M: Nicolas Ferre <nicolas.ferre@microchip.com>
M: Alexandre Belloni <alexandre.belloni@free-electrons.com>
@@ -1139,11 +1235,6 @@ F: arch/arm/boot/dts/sama*.dtsi
F: arch/arm/include/debug/at91.S
F: drivers/memory/atmel*
-ARM/ATMEL AT91 Clock Support
-M: Boris Brezillon <boris.brezillon@free-electrons.com>
-S: Maintained
-F: drivers/clk/at91
-
ARM/CALXEDA HIGHBANK ARCHITECTURE
M: Rob Herring <robh@kernel.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -1170,6 +1261,11 @@ L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Odd Fixes
N: clps711x
+ARM/CIRRUS LOGIC EDB9315A MACHINE SUPPORT
+M: Lennert Buytenhek <kernel@wantstofly.org>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+
ARM/CIRRUS LOGIC EP93XX ARM ARCHITECTURE
M: Hartley Sweeten <hsweeten@visionengravers.com>
M: Alexander Sverdlin <alexander.sverdlin@gmail.com>
@@ -1178,11 +1274,6 @@ S: Maintained
F: arch/arm/mach-ep93xx/
F: arch/arm/mach-ep93xx/include/mach/
-ARM/CIRRUS LOGIC EDB9315A MACHINE SUPPORT
-M: Lennert Buytenhek <kernel@wantstofly.org>
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S: Maintained
-
ARM/CLKDEV SUPPORT
M: Russell King <linux@armlinux.org.uk>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -1196,6 +1287,13 @@ M: Mike Rapoport <mike@compulab.co.il>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
+ARM/CONEXANT DIGICOLOR MACHINE SUPPORT
+M: Baruch Siach <baruch@tkos.co.il>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+F: arch/arm/boot/dts/cx92755*
+N: digicolor
+
ARM/CONTEC MICRO9 MACHINE SUPPORT
M: Hubert Feurstein <hubert.feurstein@contec.at>
S: Maintained
@@ -1207,7 +1305,9 @@ L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: drivers/hwtracing/coresight/*
F: Documentation/trace/coresight.txt
+F: Documentation/trace/coresight-cpu-debug.txt
F: Documentation/devicetree/bindings/arm/coresight.txt
+F: Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt
F: Documentation/ABI/testing/sysfs-bus-coresight-devices-*
F: tools/perf/arch/arm/util/pmu.c
F: tools/perf/arch/arm/util/auxtrace.c
@@ -1221,11 +1321,16 @@ S: Maintained
ARM/CORTINA SYSTEMS GEMINI ARM ARCHITECTURE
M: Hans Ulli Kroll <ulli.kroll@googlemail.com>
+M: Linus Walleij <linus.walleij@linaro.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
T: git git://github.com/ulli-kroll/linux.git
S: Maintained
+F: Documentation/devicetree/bindings/arm/gemini.txt
+F: Documentation/devicetree/bindings/pinctrl/cortina,gemini-pinctrl.txt
+F: Documentation/devicetree/bindings/rtc/faraday,ftrtc010.txt
F: arch/arm/mach-gemini/
-F: drivers/rtc/rtc-gemini.c
+F: drivers/pinctrl/pinctrl-gemini.c
+F: drivers/rtc/rtc-ftrtc010.c
ARM/CSR SIRFPRIMA2 MACHINE SUPPORT
M: Barry Song <baohua@kernel.org>
@@ -1239,13 +1344,6 @@ F: drivers/clocksource/timer-prima2.c
F: drivers/clocksource/timer-atlas7.c
N: [^a-z]sirf
-ARM/CONEXANT DIGICOLOR MACHINE SUPPORT
-M: Baruch Siach <baruch@tkos.co.il>
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S: Maintained
-F: arch/arm/boot/dts/cx92755*
-N: digicolor
-
ARM/EBSA110 MACHINE SUPPORT
M: Russell King <linux@armlinux.org.uk>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -1359,6 +1457,11 @@ L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/mach-pxa/colibri-pxa270-income.c
+ARM/INTEL IOP13XX ARM ARCHITECTURE
+M: Lennert Buytenhek <kernel@wantstofly.org>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+
ARM/INTEL IOP32X ARM ARCHITECTURE
M: Lennert Buytenhek <kernel@wantstofly.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -1368,11 +1471,6 @@ ARM/INTEL IOP33X ARM ARCHITECTURE
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Orphan
-ARM/INTEL IOP13XX ARM ARCHITECTURE
-M: Lennert Buytenhek <kernel@wantstofly.org>
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S: Maintained
-
ARM/INTEL IQ81342EX MACHINE SUPPORT
M: Lennert Buytenhek <kernel@wantstofly.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -1407,39 +1505,6 @@ M: Lennert Buytenhek <kernel@wantstofly.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
-ARM/TEXAS INSTRUMENT KEYSTONE ARCHITECTURE
-M: Santosh Shilimkar <ssantosh@kernel.org>
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S: Maintained
-F: arch/arm/mach-keystone/
-F: arch/arm/boot/dts/keystone-*
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone.git
-
-ARM/TEXAS INSTRUMENT KEYSTONE CLOCK FRAMEWORK
-M: Santosh Shilimkar <ssantosh@kernel.org>
-L: linux-kernel@vger.kernel.org
-S: Maintained
-F: drivers/clk/keystone/
-
-ARM/TEXAS INSTRUMENT KEYSTONE ClOCKSOURCE
-M: Santosh Shilimkar <ssantosh@kernel.org>
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-L: linux-kernel@vger.kernel.org
-S: Maintained
-F: drivers/clocksource/timer-keystone.c
-
-ARM/TEXAS INSTRUMENT KEYSTONE RESET DRIVER
-M: Santosh Shilimkar <ssantosh@kernel.org>
-L: linux-kernel@vger.kernel.org
-S: Maintained
-F: drivers/power/reset/keystone-reset.c
-
-ARM/TEXAS INSTRUMENT AEMIF/EMIF DRIVERS
-M: Santosh Shilimkar <ssantosh@kernel.org>
-L: linux-kernel@vger.kernel.org
-S: Maintained
-F: drivers/memory/*emif*
-
ARM/LG1K ARCHITECTURE
M: Chanho Min <chanho.min@lge.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -1482,23 +1547,6 @@ ARM/MAGICIAN MACHINE SUPPORT
M: Philipp Zabel <philipp.zabel@gmail.com>
S: Maintained
-ARM/Marvell Kirkwood and Armada 370, 375, 38x, 39x, XP, 3700, 7K/8K SOC support
-M: Jason Cooper <jason@lakedaemon.net>
-M: Andrew Lunn <andrew@lunn.ch>
-M: Gregory Clement <gregory.clement@free-electrons.com>
-M: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S: Maintained
-F: arch/arm/boot/dts/armada*
-F: arch/arm/boot/dts/kirkwood*
-F: arch/arm/configs/mvebu_*_defconfig
-F: arch/arm/mach-mvebu/
-F: arch/arm64/boot/dts/marvell/armada*
-F: drivers/cpufreq/mvebu-cpufreq.c
-F: drivers/irqchip/irq-armada-370-xp.c
-F: drivers/irqchip/irq-mvebu-*
-F: drivers/rtc/rtc-armada38x.c
-
ARM/Marvell Berlin SoC support
M: Jisheng Zhang <jszhang@marvell.com>
M: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
@@ -1508,7 +1556,6 @@ F: arch/arm/mach-berlin/
F: arch/arm/boot/dts/berlin*
F: arch/arm64/boot/dts/marvell/berlin*
-
ARM/Marvell Dove/MV78xx0/Orion SOC support
M: Jason Cooper <jason@lakedaemon.net>
M: Andrew Lunn <andrew@lunn.ch>
@@ -1524,24 +1571,23 @@ F: arch/arm/plat-orion/
F: arch/arm/boot/dts/dove*
F: arch/arm/boot/dts/orion5x*
-
-ARM/Orion SoC/Technologic Systems TS-78xx platform support
-M: Alexander Clouter <alex@digriz.org.uk>
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-W: http://www.digriz.org.uk/ts78xx/kernel
-S: Maintained
-F: arch/arm/mach-orion5x/ts78xx-*
-
-ARM/OXNAS platform support
-M: Neil Armstrong <narmstrong@baylibre.com>
+ARM/Marvell Kirkwood and Armada 370, 375, 38x, 39x, XP, 3700, 7K/8K SOC support
+M: Jason Cooper <jason@lakedaemon.net>
+M: Andrew Lunn <andrew@lunn.ch>
+M: Gregory Clement <gregory.clement@free-electrons.com>
+M: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-L: linux-oxnas@lists.tuxfamily.org (moderated for non-subscribers)
S: Maintained
-F: arch/arm/mach-oxnas/
-F: arch/arm/boot/dts/ox8*.dtsi
-F: arch/arm/boot/dts/wd-mbwe.dts
-F: arch/arm/boot/dts/cloudengines-pogoplug-series-3.dts
-N: oxnas
+F: arch/arm/boot/dts/armada*
+F: arch/arm/boot/dts/kirkwood*
+F: arch/arm/configs/mvebu_*_defconfig
+F: arch/arm/mach-mvebu/
+F: arch/arm64/boot/dts/marvell/armada*
+F: drivers/cpufreq/mvebu-cpufreq.c
+F: drivers/irqchip/irq-armada-370-xp.c
+F: drivers/irqchip/irq-mvebu-*
+F: drivers/pinctrl/mvebu/
+F: drivers/rtc/rtc-armada38x.c
ARM/Mediatek RTC DRIVER
M: Eddie Huang <eddie.huang@mediatek.com>
@@ -1568,7 +1614,7 @@ M: Chunfeng Yun <chunfeng.yun@mediatek.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: linux-mediatek@lists.infradead.org (moderated for non-subscribers)
S: Maintained
-F: drivers/phy/phy-mt65xx-usb3.c
+F: drivers/phy/mediatek/phy-mtk-tphy.c
ARM/MICREL KS8695 ARCHITECTURE
M: Greg Ungerer <gerg@uclinux.org>
@@ -1596,16 +1642,53 @@ F: drivers/pinctrl/nomadik/
F: drivers/i2c/busses/i2c-nomadik.c
T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git
+ARM/NUVOTON W90X900 ARM ARCHITECTURE
+M: Wan ZongShun <mcuos.com@gmail.com>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+W: http://www.mcuos.com
+S: Maintained
+F: arch/arm/mach-w90x900/
+F: drivers/input/keyboard/w90p910_keypad.c
+F: drivers/input/touchscreen/w90p910_ts.c
+F: drivers/watchdog/nuc900_wdt.c
+F: drivers/net/ethernet/nuvoton/w90p910_ether.c
+F: drivers/mtd/nand/nuc900_nand.c
+F: drivers/rtc/rtc-nuc900.c
+F: drivers/spi/spi-nuc900.c
+F: drivers/usb/host/ehci-w90x900.c
+F: drivers/video/fbdev/nuc900fb.c
+
ARM/OPENMOKO NEO FREERUNNER (GTA02) MACHINE SUPPORT
M: Nelson Castillo <arhuaco@freaks-unidos.net>
L: openmoko-kernel@lists.openmoko.org (subscribers-only)
W: http://wiki.openmoko.org/wiki/Neo_FreeRunner
S: Supported
-ARM/TOSA MACHINE SUPPORT
-M: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
-M: Dirk Opfer <dirk@opfer-online.de>
+ARM/Orion SoC/Technologic Systems TS-78xx platform support
+M: Alexander Clouter <alex@digriz.org.uk>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+W: http://www.digriz.org.uk/ts78xx/kernel
+S: Maintained
+F: arch/arm/mach-orion5x/ts78xx-*
+
+ARM/OXNAS platform support
+M: Neil Armstrong <narmstrong@baylibre.com>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+L: linux-oxnas@lists.tuxfamily.org (moderated for non-subscribers)
+S: Maintained
+F: arch/arm/mach-oxnas/
+F: arch/arm/boot/dts/ox8*.dtsi
+F: arch/arm/boot/dts/wd-mbwe.dts
+F: arch/arm/boot/dts/cloudengines-pogoplug-series-3.dts
+N: oxnas
+
+ARM/PALM TREO SUPPORT
+M: Tomas Cech <sleep_walker@suse.com>
+L: linux-arm-kernel@lists.infradead.org
+W: http://hackndev.com
S: Maintained
+F: arch/arm/mach-pxa/include/mach/palmtreo.h
+F: arch/arm/mach-pxa/palmtreo.c
ARM/PALMTX,PALMT5,PALMLD,PALMTE2,PALMTC SUPPORT
M: Marek Vasut <marek.vasut@gmail.com>
@@ -1623,14 +1706,6 @@ F: arch/arm/mach-pxa/palmte2.c
F: arch/arm/mach-pxa/include/mach/palmtc.h
F: arch/arm/mach-pxa/palmtc.c
-ARM/PALM TREO SUPPORT
-M: Tomas Cech <sleep_walker@suse.com>
-L: linux-arm-kernel@lists.infradead.org
-W: http://hackndev.com
-S: Maintained
-F: arch/arm/mach-pxa/include/mach/palmtreo.h
-F: arch/arm/mach-pxa/palmtreo.c
-
ARM/PALMZ72 SUPPORT
M: Sergey Lapin <slapin@ossfans.org>
L: linux-arm-kernel@lists.infradead.org
@@ -1663,7 +1738,6 @@ F: arch/arm/mach-qcom/
F: arch/arm64/boot/dts/qcom/*
F: drivers/i2c/busses/i2c-qup.c
F: drivers/clk/qcom/
-F: drivers/pinctrl/qcom/
F: drivers/dma/qcom/
F: drivers/soc/qcom/
F: drivers/spi/spi-qup.c
@@ -1679,6 +1753,13 @@ M: Lennert Buytenhek <kernel@wantstofly.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
+ARM/REALTEK ARCHITECTURE
+M: Andreas Färber <afaerber@suse.de>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+F: arch/arm64/boot/dts/realtek/
+F: Documentation/devicetree/bindings/arm/realtek.txt
+
ARM/RENESAS ARM64 ARCHITECTURE
M: Simon Horman <horms@verge.net.au>
M: Magnus Damm <magnus.damm@gmail.com>
@@ -1712,6 +1793,7 @@ L: linux-rockchip@lists.infradead.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git
S: Maintained
F: arch/arm/boot/dts/rk3*
+F: arch/arm/boot/dts/rv1108*
F: arch/arm/mach-rockchip/
F: drivers/clk/rockchip/
F: drivers/i2c/busses/i2c-rk3x.c
@@ -1764,23 +1846,13 @@ L: linux-media@vger.kernel.org
S: Maintained
F: drivers/media/platform/s5p-g2d/
-ARM/SAMSUNG S5P SERIES Multi Format Codec (MFC) SUPPORT
-M: Kyungmin Park <kyungmin.park@samsung.com>
-M: Kamil Debski <kamil@wypas.org>
-M: Jeongtae Park <jtp.park@samsung.com>
-M: Andrzej Hajda <a.hajda@samsung.com>
-L: linux-arm-kernel@lists.infradead.org
-L: linux-media@vger.kernel.org
-S: Maintained
-F: arch/arm/plat-samsung/s5p-dev-mfc.c
-F: drivers/media/platform/s5p-mfc/
-
ARM/SAMSUNG S5P SERIES HDMI CEC SUBSYSTEM SUPPORT
-M: Kyungmin Park <kyungmin.park@samsung.com>
-L: linux-arm-kernel@lists.infradead.org
+M: Marek Szyprowski <m.szyprowski@samsung.com>
+L: linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
L: linux-media@vger.kernel.org
S: Maintained
-F: drivers/staging/media/platform/s5p-cec/
+F: drivers/media/platform/s5p-cec/
+F: Documentation/devicetree/bindings/media/s5p-cec.txt
ARM/SAMSUNG S5P SERIES JPEG CODEC SUPPORT
M: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
@@ -1790,6 +1862,17 @@ L: linux-media@vger.kernel.org
S: Maintained
F: drivers/media/platform/s5p-jpeg/
+ARM/SAMSUNG S5P SERIES Multi Format Codec (MFC) SUPPORT
+M: Kyungmin Park <kyungmin.park@samsung.com>
+M: Kamil Debski <kamil@wypas.org>
+M: Jeongtae Park <jtp.park@samsung.com>
+M: Andrzej Hajda <a.hajda@samsung.com>
+L: linux-arm-kernel@lists.infradead.org
+L: linux-media@vger.kernel.org
+S: Maintained
+F: arch/arm/plat-samsung/s5p-dev-mfc.c
+F: drivers/media/platform/s5p-mfc/
+
ARM/SHMOBILE ARM ARCHITECTURE
M: Simon Horman <horms@verge.net.au>
M: Magnus Damm <magnus.damm@gmail.com>
@@ -1843,8 +1926,8 @@ F: drivers/i2c/busses/i2c-st.c
F: drivers/media/rc/st_rc.c
F: drivers/media/platform/sti/c8sectpfe/
F: drivers/mmc/host/sdhci-st.c
-F: drivers/phy/phy-miphy28lp.c
-F: drivers/phy/phy-stih407-usb.c
+F: drivers/phy/st/phy-miphy28lp.c
+F: drivers/phy/st/phy-stih407-usb.c
F: drivers/pinctrl/pinctrl-st.c
F: drivers/remoteproc/st_remoteproc.c
F: drivers/remoteproc/st_slim_rproc.c
@@ -1883,26 +1966,48 @@ M: "Mark F. Brown" <mark.brown314@gmail.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
+ARM/TEXAS INSTRUMENT AEMIF/EMIF DRIVERS
+M: Santosh Shilimkar <ssantosh@kernel.org>
+L: linux-kernel@vger.kernel.org
+S: Maintained
+F: drivers/memory/*emif*
+
+ARM/TEXAS INSTRUMENT KEYSTONE ARCHITECTURE
+M: Santosh Shilimkar <ssantosh@kernel.org>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+F: arch/arm/mach-keystone/
+F: arch/arm/boot/dts/keystone-*
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone.git
+
+ARM/TEXAS INSTRUMENT KEYSTONE CLOCK FRAMEWORK
+M: Santosh Shilimkar <ssantosh@kernel.org>
+L: linux-kernel@vger.kernel.org
+S: Maintained
+F: drivers/clk/keystone/
+
+ARM/TEXAS INSTRUMENT KEYSTONE ClOCKSOURCE
+M: Santosh Shilimkar <ssantosh@kernel.org>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+L: linux-kernel@vger.kernel.org
+S: Maintained
+F: drivers/clocksource/timer-keystone.c
+
+ARM/TEXAS INSTRUMENT KEYSTONE RESET DRIVER
+M: Santosh Shilimkar <ssantosh@kernel.org>
+L: linux-kernel@vger.kernel.org
+S: Maintained
+F: drivers/power/reset/keystone-reset.c
+
ARM/THECUS N2100 MACHINE SUPPORT
M: Lennert Buytenhek <kernel@wantstofly.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
-ARM/NUVOTON W90X900 ARM ARCHITECTURE
-M: Wan ZongShun <mcuos.com@gmail.com>
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-W: http://www.mcuos.com
+ARM/TOSA MACHINE SUPPORT
+M: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+M: Dirk Opfer <dirk@opfer-online.de>
S: Maintained
-F: arch/arm/mach-w90x900/
-F: drivers/input/keyboard/w90p910_keypad.c
-F: drivers/input/touchscreen/w90p910_ts.c
-F: drivers/watchdog/nuc900_wdt.c
-F: drivers/net/ethernet/nuvoton/w90p910_ether.c
-F: drivers/mtd/nand/nuc900_nand.c
-F: drivers/rtc/rtc-nuc900.c
-F: drivers/spi/spi-nuc900.c
-F: drivers/usb/host/ehci-w90x900.c
-F: drivers/video/fbdev/nuc900fb.c
ARM/U300 MACHINE SUPPORT
M: Linus Walleij <linus.walleij@linaro.org>
@@ -1932,6 +2037,7 @@ F: arch/arm64/boot/dts/socionext/
F: drivers/bus/uniphier-system-bus.c
F: drivers/clk/uniphier/
F: drivers/i2c/busses/i2c-uniphier*
+F: drivers/irqchip/irq-uniphier-aidet.c
F: drivers/pinctrl/uniphier/
F: drivers/reset/reset-uniphier.c
F: drivers/tty/serial/8250/8250_uniphier.c
@@ -2018,17 +2124,38 @@ F: arch/arm/mach-pxa/include/mach/z2.h
ARM/ZTE ARCHITECTURE
M: Jun Nie <jun.nie@linaro.org>
M: Baoyou Xie <baoyou.xie@linaro.org>
+M: Shawn Guo <shawnguo@kernel.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
+F: arch/arm/boot/dts/zx2967*
F: arch/arm/mach-zx/
+F: arch/arm64/boot/dts/zte/
F: drivers/clk/zte/
+F: drivers/dma/zx_dma.c
+F: drivers/gpio/gpio-zx.c
+F: drivers/i2c/busses/i2c-zx2967.c
+F: drivers/mmc/host/dw_mmc-zx.*
+F: drivers/pinctrl/zte/
F: drivers/reset/reset-zx2967.c
F: drivers/soc/zte/
+F: drivers/thermal/zx2967_thermal.c
+F: drivers/watchdog/zx2967_wdt.c
F: Documentation/devicetree/bindings/arm/zte.txt
-F: Documentation/devicetree/bindings/clock/zx296702-clk.txt
+F: Documentation/devicetree/bindings/clock/zx2967*.txt
+F: Documentation/devicetree/bindings/dma/zxdma.txt
+F: Documentation/devicetree/bindings/gpio/zx296702-gpio.txt
+F: Documentation/devicetree/bindings/i2c/i2c-zx2967.txt
+F: Documentation/devicetree/bindings/mmc/zx-dw-mshc.txt
+F: Documentation/devicetree/bindings/pinctrl/pinctrl-zx.txt
F: Documentation/devicetree/bindings/reset/zte,zx2967-reset.txt
F: Documentation/devicetree/bindings/soc/zte/
-F: include/dt-bindings/soc/zx*.h
+F: Documentation/devicetree/bindings/sound/zte,*.txt
+F: Documentation/devicetree/bindings/thermal/zx2967-thermal.txt
+F: Documentation/devicetree/bindings/watchdog/zte,zx2967-wdt.txt
+F: include/dt-bindings/clock/zx2967*.h
+F: include/dt-bindings/soc/zte,*.h
+F: sound/soc/codecs/zx_aud96p22.c
+F: sound/soc/zte/
ARM/ZYNQ ARCHITECTURE
M: Michal Simek <michal.simek@xilinx.com>
@@ -2047,16 +2174,6 @@ F: drivers/i2c/busses/i2c-cadence.c
F: drivers/mmc/host/sdhci-of-arasan.c
F: drivers/edac/synopsys_edac.c
-ARM SMMU DRIVERS
-M: Will Deacon <will.deacon@arm.com>
-R: Robin Murphy <robin.murphy@arm.com>
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S: Maintained
-F: drivers/iommu/arm-smmu.c
-F: drivers/iommu/arm-smmu-v3.c
-F: drivers/iommu/io-pgtable-arm.c
-F: drivers/iommu/io-pgtable-arm-v7s.c
-
ARM64 PORT (AARCH64 ARCHITECTURE)
M: Catalin Marinas <catalin.marinas@arm.com>
M: Will Deacon <will.deacon@arm.com>
@@ -2067,6 +2184,12 @@ F: arch/arm64/
F: Documentation/arm64/
AS3645A LED FLASH CONTROLLER DRIVER
+M: Sakari Ailus <sakari.ailus@iki.fi>
+L: linux-leds@vger.kernel.org
+S: Maintained
+F: drivers/leds/leds-as3645a.c
+
+AS3645A LED FLASH CONTROLLER DRIVER
M: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
L: linux-media@vger.kernel.org
T: git git://linuxtv.org/media_tree.git
@@ -2168,21 +2291,10 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
S: Supported
F: drivers/net/wireless/ath/ath6kl/
-WILOCITY WIL6210 WIRELESS DRIVER
-M: Maya Erez <qca_merez@qca.qualcomm.com>
-L: linux-wireless@vger.kernel.org
-L: wil6210@qca.qualcomm.com
-S: Supported
-W: http://wireless.kernel.org/en/users/Drivers/wil6210
-F: drivers/net/wireless/ath/wil6210/
-F: include/uapi/linux/wil6210_uapi.h
-
-CARL9170 LINUX COMMUNITY WIRELESS DRIVER
-M: Christian Lamparter <chunkeey@googlemail.com>
-L: linux-wireless@vger.kernel.org
-W: http://wireless.kernel.org/en/users/Drivers/carl9170
+ATI_REMOTE2 DRIVER
+M: Ville Syrjala <syrjala@sci.fi>
S: Maintained
-F: drivers/net/wireless/ath/carl9170/
+F: drivers/input/misc/ati_remote2.c
ATK0110 HWMON DRIVER
M: Luca Tettamanti <kronos.it@gmail.com>
@@ -2190,11 +2302,6 @@ L: linux-hwmon@vger.kernel.org
S: Maintained
F: drivers/hwmon/asus_atk0110.c
-ATI_REMOTE2 DRIVER
-M: Ville Syrjala <syrjala@sci.fi>
-S: Maintained
-F: drivers/input/misc/ati_remote2.c
-
ATLX ETHERNET DRIVERS
M: Jay Cliburn <jcliburn@gmail.com>
M: Chris Snook <chris.snook@gmail.com>
@@ -2224,25 +2331,12 @@ M: Nicolas Ferre <nicolas.ferre@microchip.com>
S: Supported
F: drivers/power/reset/at91-sama5d2_shdwc.c
-ATMEL SAMA5D2 ADC DRIVER
-M: Ludovic Desroches <ludovic.desroches@microchip.com>
-L: linux-iio@vger.kernel.org
-S: Supported
-F: drivers/iio/adc/at91-sama5d2_adc.c
-
ATMEL Audio ALSA driver
M: Nicolas Ferre <nicolas.ferre@microchip.com>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
S: Supported
F: sound/soc/atmel
-ATMEL XDMA DRIVER
-M: Ludovic Desroches <ludovic.desroches@microchip.com>
-L: linux-arm-kernel@lists.infradead.org
-L: dmaengine@vger.kernel.org
-S: Supported
-F: drivers/dma/at_xdmac.c
-
ATMEL I2C DRIVER
M: Ludovic Desroches <ludovic.desroches@microchip.com>
L: linux-i2c@vger.kernel.org
@@ -2268,6 +2362,14 @@ M: Nicolas Ferre <nicolas.ferre@microchip.com>
S: Supported
F: drivers/net/ethernet/cadence/
+ATMEL MAXTOUCH DRIVER
+M: Nick Dyer <nick@shmanahar.org>
+T: git git://github.com/ndyer/linux.git
+S: Maintained
+F: Documentation/devicetree/bindings/input/atmel,maxtouch.txt
+F: drivers/input/touchscreen/atmel_mxt_ts.c
+F: include/linux/platform_data/atmel_mxt_ts.h
+
ATMEL NAND DRIVER
M: Wenyou Yang <wenyou.yang@atmel.com>
M: Josh Wu <rainyfeeling@outlook.com>
@@ -2275,6 +2377,12 @@ L: linux-mtd@lists.infradead.org
S: Supported
F: drivers/mtd/nand/atmel/*
+ATMEL SAMA5D2 ADC DRIVER
+M: Ludovic Desroches <ludovic.desroches@microchip.com>
+L: linux-iio@vger.kernel.org
+S: Supported
+F: drivers/iio/adc/at91-sama5d2_adc.c
+
ATMEL SDMMC DRIVER
M: Ludovic Desroches <ludovic.desroches@microchip.com>
L: linux-mmc@vger.kernel.org
@@ -2314,13 +2422,21 @@ W: http://atmelwlandriver.sourceforge.net/
S: Maintained
F: drivers/net/wireless/atmel/atmel*
-ATMEL MAXTOUCH DRIVER
-M: Nick Dyer <nick@shmanahar.org>
-T: git git://github.com/ndyer/linux.git
+ATMEL XDMA DRIVER
+M: Ludovic Desroches <ludovic.desroches@microchip.com>
+L: linux-arm-kernel@lists.infradead.org
+L: dmaengine@vger.kernel.org
+S: Supported
+F: drivers/dma/at_xdmac.c
+
+ATOMIC INFRASTRUCTURE
+M: Will Deacon <will.deacon@arm.com>
+M: Peter Zijlstra <peterz@infradead.org>
+R: Boqun Feng <boqun.feng@gmail.com>
+L: linux-kernel@vger.kernel.org
S: Maintained
-F: Documentation/devicetree/bindings/input/atmel,maxtouch.txt
-F: drivers/input/touchscreen/atmel_mxt_ts.c
-F: include/linux/platform_data/atmel_mxt_ts.h
+F: arch/*/include/asm/atomic*.h
+F: include/*/atomic*.h
ATTO EXPRESSSAS SAS/SATA RAID SCSI DRIVER
M: Bradley Grove <linuxdrivers@attotech.com>
@@ -2341,9 +2457,10 @@ AUDIT SUBSYSTEM
M: Paul Moore <paul@paul-moore.com>
M: Eric Paris <eparis@redhat.com>
L: linux-audit@redhat.com (moderated for non-subscribers)
-W: http://people.redhat.com/sgrubb/audit/
-T: git git://git.infradead.org/users/pcmoore/audit
-S: Maintained
+W: https://github.com/linux-audit
+W: https://people.redhat.com/sgrubb/audit
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit.git
+S: Supported
F: include/linux/audit.h
F: include/uapi/linux/audit.h
F: kernel/audit*
@@ -2365,13 +2482,6 @@ F: include/uapi/linux/ax25.h
F: include/net/ax25.h
F: net/ax25/
-AXENTIA ASOC DRIVERS
-M: Peter Rosin <peda@axentia.se>
-L: alsa-devel@alsa-project.org (moderated for non-subscribers)
-S: Maintained
-F: Documentation/devicetree/bindings/sound/axentia,*
-F: sound/soc/atmel/tse850-pcm5142.c
-
AXENTIA ARM DEVICES
M: Peter Rosin <peda@axentia.se>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -2380,6 +2490,13 @@ F: Documentation/devicetree/bindings/arm/axentia.txt
F: arch/arm/boot/dts/at91-linea.dtsi
F: arch/arm/boot/dts/at91-tse850-3.dts
+AXENTIA ASOC DRIVERS
+M: Peter Rosin <peda@axentia.se>
+L: alsa-devel@alsa-project.org (moderated for non-subscribers)
+S: Maintained
+F: Documentation/devicetree/bindings/sound/axentia,*
+F: sound/soc/atmel/tse850-pcm5142.c
+
AZ6007 DVB DRIVER
M: Mauro Carvalho Chehab <mchehab@s-opensource.com>
M: Mauro Carvalho Chehab <mchehab@kernel.org>
@@ -2433,7 +2550,7 @@ Q: https://patchwork.open-mesh.org/project/batman/list/
S: Maintained
F: Documentation/ABI/testing/sysfs-class-net-batman-adv
F: Documentation/ABI/testing/sysfs-class-net-mesh
-F: Documentation/networking/batman-adv.txt
+F: Documentation/networking/batman-adv.rst
F: include/uapi/linux/batman_adv.h
F: net/batman-adv/
@@ -2459,27 +2576,27 @@ W: https://linuxtv.org
S: Supported
F: drivers/media/platform/sti/bdisp
-DELTA ST MEDIA DRIVER
-M: Hugues Fruchet <hugues.fruchet@st.com>
-L: linux-media@vger.kernel.org
-T: git git://linuxtv.org/media_tree.git
-W: https://linuxtv.org
-S: Supported
-F: drivers/media/platform/sti/delta
+BECKHOFF CX5020 ETHERCAT MASTER DRIVER
+M: Dariusz Marcinkiewicz <reksio@newterm.pl>
+L: netdev@vger.kernel.org
+S: Maintained
+F: drivers/net/ethernet/ec_bhf.c
BEFS FILE SYSTEM
-M: Luis de Bethencourt <luisbg@osg.samsung.com>
+M: Luis de Bethencourt <luisbg@kernel.org>
M: Salah Triki <salah.triki@gmail.com>
S: Maintained
-T: git git://github.com/luisbg/linux-befs.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/luisbg/linux-befs.git
F: Documentation/filesystems/befs.txt
F: fs/befs/
-BECKHOFF CX5020 ETHERCAT MASTER DRIVER
-M: Dariusz Marcinkiewicz <reksio@newterm.pl>
-L: netdev@vger.kernel.org
+BFQ I/O SCHEDULER
+M: Paolo Valente <paolo.valente@linaro.org>
+M: Jens Axboe <axboe@kernel.dk>
+L: linux-block@vger.kernel.org
S: Maintained
-F: drivers/net/ethernet/ec_bhf.c
+F: block/bfq-*
+F: Documentation/block/bfq-iosched.txt
BFS FILE SYSTEM
M: "Tigran A. Aivazian" <aivazian.tigran@gmail.com>
@@ -2502,6 +2619,15 @@ W: http://blackfin.uclinux.org
S: Supported
F: drivers/net/ethernet/adi/
+BLACKFIN MEDIA DRIVER
+M: Scott Jiang <scott.jiang.linux@gmail.com>
+L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
+W: http://blackfin.uclinux.org/
+S: Supported
+F: drivers/media/platform/blackfin/
+F: drivers/media/i2c/adv7183*
+F: drivers/media/i2c/vs6624*
+
BLACKFIN RTC DRIVER
L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://blackfin.uclinux.org
@@ -2509,14 +2635,12 @@ S: Supported
F: drivers/rtc/rtc-bfin.c
BLACKFIN SDH DRIVER
-M: Sonic Zhang <sonic.zhang@analog.com>
L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://blackfin.uclinux.org
S: Supported
F: drivers/mmc/host/bfin_sdh.c
BLACKFIN SERIAL DRIVER
-M: Sonic Zhang <sonic.zhang@analog.com>
L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://blackfin.uclinux.org
S: Supported
@@ -2528,22 +2652,6 @@ W: http://blackfin.uclinux.org
S: Supported
F: drivers/watchdog/bfin_wdt.c
-BLACKFIN I2C TWI DRIVER
-M: Sonic Zhang <sonic.zhang@analog.com>
-L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
-W: http://blackfin.uclinux.org/
-S: Supported
-F: drivers/i2c/busses/i2c-bfin-twi.c
-
-BLACKFIN MEDIA DRIVER
-M: Scott Jiang <scott.jiang.linux@gmail.com>
-L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
-W: http://blackfin.uclinux.org/
-S: Supported
-F: drivers/media/platform/blackfin/
-F: drivers/media/i2c/adv7183*
-F: drivers/media/i2c/vs6624*
-
BLINKM RGB LED DRIVER
M: Jan-Simon Moeller <jansimon.moeller@gmx.de>
S: Maintained
@@ -2558,14 +2666,6 @@ F: block/
F: kernel/trace/blktrace.c
F: lib/sbitmap.c
-BFQ I/O SCHEDULER
-M: Paolo Valente <paolo.valente@linaro.org>
-M: Jens Axboe <axboe@kernel.dk>
-L: linux-block@vger.kernel.org
-S: Maintained
-F: block/bfq-*
-F: Documentation/block/bfq-iosched.txt
-
BLOCK2MTD DRIVER
M: Joern Engel <joern@lazybastard.org>
L: linux-mtd@lists.infradead.org
@@ -2642,35 +2742,6 @@ S: Supported
F: drivers/net/dsa/b53/*
F: include/linux/platform_data/b53.h
-BROADCOM GENET ETHERNET DRIVER
-M: Florian Fainelli <f.fainelli@gmail.com>
-L: netdev@vger.kernel.org
-S: Supported
-F: drivers/net/ethernet/broadcom/genet/
-
-BROADCOM BNX2 GIGABIT ETHERNET DRIVER
-M: Rasesh Mody <rasesh.mody@cavium.com>
-M: Harish Patil <harish.patil@cavium.com>
-M: Dept-GELinuxNICDev@cavium.com
-L: netdev@vger.kernel.org
-S: Supported
-F: drivers/net/ethernet/broadcom/bnx2.*
-F: drivers/net/ethernet/broadcom/bnx2_*
-
-BROADCOM BNX2X 10 GIGABIT ETHERNET DRIVER
-M: Yuval Mintz <Yuval.Mintz@cavium.com>
-M: Ariel Elior <ariel.elior@cavium.com>
-M: everest-linux-l2@cavium.com
-L: netdev@vger.kernel.org
-S: Supported
-F: drivers/net/ethernet/broadcom/bnx2x/
-
-BROADCOM BNXT_EN 50 GIGABIT ETHERNET DRIVER
-M: Michael Chan <michael.chan@broadcom.com>
-L: netdev@vger.kernel.org
-S: Supported
-F: drivers/net/ethernet/broadcom/bnxt/
-
BROADCOM BCM281XX/BCM11XXX/BCM216XX ARM ARCHITECTURE
M: Florian Fainelli <f.fainelli@gmail.com>
M: Ray Jui <rjui@broadcom.com>
@@ -2685,7 +2756,6 @@ N: kona
F: arch/arm/mach-bcm/
BROADCOM BCM2835 ARM ARCHITECTURE
-M: Lee Jones <lee@kernel.org>
M: Eric Anholt <eric@anholt.net>
M: Stefan Wahren <stefan.wahren@i2se.com>
L: linux-rpi-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -2750,6 +2820,13 @@ F: arch/arm/boot/dts/bcm7*.dts*
F: drivers/bus/brcmstb_gisb.c
N: brcmstb
+BROADCOM BMIPS CPUFREQ DRIVER
+M: Markus Mayer <mmayer@broadcom.com>
+M: bcm-kernel-feedback-list@broadcom.com
+L: linux-pm@vger.kernel.org
+S: Maintained
+F: drivers/cpufreq/bmips-cpufreq.c
+
BROADCOM BMIPS MIPS ARCHITECTURE
M: Kevin Cernekee <cernekee@gmail.com>
M: Florian Fainelli <f.fainelli@gmail.com>
@@ -2766,41 +2843,64 @@ F: drivers/irqchip/irq-brcmstb*
F: include/linux/bcm963xx_nvram.h
F: include/linux/bcm963xx_tag.h
-BROADCOM BMIPS CPUFREQ DRIVER
-M: Markus Mayer <mmayer@broadcom.com>
-M: bcm-kernel-feedback-list@broadcom.com
-L: linux-pm@vger.kernel.org
-S: Maintained
-F: drivers/cpufreq/bmips-cpufreq.c
+BROADCOM BNX2 GIGABIT ETHERNET DRIVER
+M: Rasesh Mody <rasesh.mody@cavium.com>
+M: Harish Patil <harish.patil@cavium.com>
+M: Dept-GELinuxNICDev@cavium.com
+L: netdev@vger.kernel.org
+S: Supported
+F: drivers/net/ethernet/broadcom/bnx2.*
+F: drivers/net/ethernet/broadcom/bnx2_*
-BROADCOM TG3 GIGABIT ETHERNET DRIVER
-M: Siva Reddy Kallam <siva.kallam@broadcom.com>
-M: Prashant Sreedharan <prashant@broadcom.com>
-M: Michael Chan <mchan@broadcom.com>
+BROADCOM BNX2FC 10 GIGABIT FCOE DRIVER
+M: QLogic-Storage-Upstream@qlogic.com
+L: linux-scsi@vger.kernel.org
+S: Supported
+F: drivers/scsi/bnx2fc/
+
+BROADCOM BNX2I 1/10 GIGABIT iSCSI DRIVER
+M: QLogic-Storage-Upstream@qlogic.com
+L: linux-scsi@vger.kernel.org
+S: Supported
+F: drivers/scsi/bnx2i/
+
+BROADCOM BNX2X 10 GIGABIT ETHERNET DRIVER
+M: Ariel Elior <ariel.elior@cavium.com>
+M: everest-linux-l2@cavium.com
L: netdev@vger.kernel.org
S: Supported
-F: drivers/net/ethernet/broadcom/tg3.*
+F: drivers/net/ethernet/broadcom/bnx2x/
+
+BROADCOM BNXT_EN 50 GIGABIT ETHERNET DRIVER
+M: Michael Chan <michael.chan@broadcom.com>
+L: netdev@vger.kernel.org
+S: Supported
+F: drivers/net/ethernet/broadcom/bnxt/
BROADCOM BRCM80211 IEEE802.11n WIRELESS DRIVER
M: Arend van Spriel <arend.vanspriel@broadcom.com>
M: Franky Lin <franky.lin@broadcom.com>
M: Hante Meuleman <hante.meuleman@broadcom.com>
+M: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
+M: Wright Feng <wright.feng@cypress.com>
L: linux-wireless@vger.kernel.org
L: brcm80211-dev-list.pdl@broadcom.com
+L: brcm80211-dev-list@cypress.com
S: Supported
F: drivers/net/wireless/broadcom/brcm80211/
-BROADCOM BNX2FC 10 GIGABIT FCOE DRIVER
-M: QLogic-Storage-Upstream@qlogic.com
-L: linux-scsi@vger.kernel.org
+BROADCOM BRCMSTB GPIO DRIVER
+M: Gregory Fong <gregory.0xf0@gmail.com>
+L: bcm-kernel-feedback-list@broadcom.com
S: Supported
-F: drivers/scsi/bnx2fc/
+F: drivers/gpio/gpio-brcmstb.c
+F: Documentation/devicetree/bindings/gpio/brcm,brcmstb-gpio.txt
-BROADCOM BNX2I 1/10 GIGABIT iSCSI DRIVER
-M: QLogic-Storage-Upstream@qlogic.com
-L: linux-scsi@vger.kernel.org
+BROADCOM GENET ETHERNET DRIVER
+M: Florian Fainelli <f.fainelli@gmail.com>
+L: netdev@vger.kernel.org
S: Supported
-F: drivers/scsi/bnx2i/
+F: drivers/net/ethernet/broadcom/genet/
BROADCOM IPROC ARM ARCHITECTURE
M: Ray Jui <rjui@broadcom.com>
@@ -2827,13 +2927,6 @@ F: arch/arm64/boot/dts/broadcom/ns2*
F: drivers/clk/bcm/clk-ns*
F: drivers/pinctrl/bcm/pinctrl-ns*
-BROADCOM BRCMSTB GPIO DRIVER
-M: Gregory Fong <gregory.0xf0@gmail.com>
-L: bcm-kernel-feedback-list@broadcom.com
-S: Supported
-F: drivers/gpio/gpio-brcmstb.c
-F: Documentation/devicetree/bindings/gpio/brcm,brcmstb-gpio.txt
-
BROADCOM KONA GPIO DRIVER
M: Ray Jui <rjui@broadcom.com>
L: bcm-kernel-feedback-list@broadcom.com
@@ -2841,19 +2934,29 @@ S: Supported
F: drivers/gpio/gpio-bcm-kona.c
F: Documentation/devicetree/bindings/gpio/brcm,kona-gpio.txt
+BROADCOM NETXTREME-E ROCE DRIVER
+M: Selvin Xavier <selvin.xavier@broadcom.com>
+M: Devesh Sharma <devesh.sharma@broadcom.com>
+M: Somnath Kotur <somnath.kotur@broadcom.com>
+M: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
+L: linux-rdma@vger.kernel.org
+W: http://www.broadcom.com
+S: Supported
+F: drivers/infiniband/hw/bnxt_re/
+F: include/uapi/rdma/bnxt_re-abi.h
+
BROADCOM NVRAM DRIVER
M: Rafał Miłecki <zajec5@gmail.com>
L: linux-mips@linux-mips.org
S: Maintained
F: drivers/firmware/broadcom/*
-BROADCOM STB NAND FLASH DRIVER
-M: Brian Norris <computersforpeace@gmail.com>
-M: Kamal Dasu <kdasu.kdev@gmail.com>
-L: linux-mtd@lists.infradead.org
-L: bcm-kernel-feedback-list@broadcom.com
+BROADCOM SPECIFIC AMBA DRIVER (BCMA)
+M: Rafał Miłecki <zajec5@gmail.com>
+L: linux-wireless@vger.kernel.org
S: Maintained
-F: drivers/mtd/nand/brcmnand/
+F: drivers/bcma/
+F: include/linux/bcma/
BROADCOM STB AVS CPUFREQ DRIVER
M: Markus Mayer <mmayer@broadcom.com>
@@ -2863,12 +2966,13 @@ S: Maintained
F: Documentation/devicetree/bindings/cpufreq/brcm,stb-avs-cpu-freq.txt
F: drivers/cpufreq/brcmstb*
-BROADCOM SPECIFIC AMBA DRIVER (BCMA)
-M: Rafał Miłecki <zajec5@gmail.com>
-L: linux-wireless@vger.kernel.org
+BROADCOM STB NAND FLASH DRIVER
+M: Brian Norris <computersforpeace@gmail.com>
+M: Kamal Dasu <kdasu.kdev@gmail.com>
+L: linux-mtd@lists.infradead.org
+L: bcm-kernel-feedback-list@broadcom.com
S: Maintained
-F: drivers/bcma/
-F: include/linux/bcma/
+F: drivers/mtd/nand/brcmnand/
BROADCOM SYSTEMPORT ETHERNET DRIVER
M: Florian Fainelli <f.fainelli@gmail.com>
@@ -2876,16 +2980,13 @@ L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/broadcom/bcmsysport.*
-BROADCOM NETXTREME-E ROCE DRIVER
-M: Selvin Xavier <selvin.xavier@broadcom.com>
-M: Devesh Sharma <devesh.sharma@broadcom.com>
-M: Somnath Kotur <somnath.kotur@broadcom.com>
-M: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
-L: linux-rdma@vger.kernel.org
-W: http://www.broadcom.com
+BROADCOM TG3 GIGABIT ETHERNET DRIVER
+M: Siva Reddy Kallam <siva.kallam@broadcom.com>
+M: Prashant Sreedharan <prashant@broadcom.com>
+M: Michael Chan <mchan@broadcom.com>
+L: netdev@vger.kernel.org
S: Supported
-F: drivers/infiniband/hw/bnxt_re/
-F: include/uapi/rdma/bnxt_re-abi.h
+F: drivers/net/ethernet/broadcom/tg3.*
BROCADE BFA FC SCSI DRIVER
M: Anil Gurumurthy <anil.gurumurthy@qlogic.com>
@@ -2948,6 +3049,15 @@ S: Odd fixes
F: Documentation/media/v4l-drivers/bttv*
F: drivers/media/pci/bt8xx/bttv*
+BUS FREQUENCY DRIVER FOR SAMSUNG EXYNOS
+M: Chanwoo Choi <cw00.choi@samsung.com>
+L: linux-pm@vger.kernel.org
+L: linux-samsung-soc@vger.kernel.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mzx/devfreq.git
+S: Maintained
+F: drivers/devfreq/exynos-bus.c
+F: Documentation/devicetree/bindings/devfreq/exynos-bus.txt
+
BUSLOGIC SCSI DRIVER
M: Khalid Aziz <khalid@gonehiking.org>
L: linux-scsi@vger.kernel.org
@@ -3022,6 +3132,21 @@ F: arch/x86/kernel/tce_64.c
F: arch/x86/include/asm/calgary.h
F: arch/x86/include/asm/tce.h
+CAN NETWORK DRIVERS
+M: Wolfgang Grandegger <wg@grandegger.com>
+M: Marc Kleine-Budde <mkl@pengutronix.de>
+L: linux-can@vger.kernel.org
+W: https://github.com/linux-can
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git
+S: Maintained
+F: Documentation/devicetree/bindings/net/can/
+F: drivers/net/can/
+F: include/linux/can/dev.h
+F: include/linux/can/platform/
+F: include/uapi/linux/can/error.h
+F: include/uapi/linux/can/netlink.h
+
CAN NETWORK LAYER
M: Oliver Hartkopp <socketcan@hartkopp.net>
M: Marc Kleine-Budde <mkl@pengutronix.de>
@@ -3038,21 +3163,6 @@ F: include/uapi/linux/can/bcm.h
F: include/uapi/linux/can/raw.h
F: include/uapi/linux/can/gw.h
-CAN NETWORK DRIVERS
-M: Wolfgang Grandegger <wg@grandegger.com>
-M: Marc Kleine-Budde <mkl@pengutronix.de>
-L: linux-can@vger.kernel.org
-W: https://github.com/linux-can
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can.git
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git
-S: Maintained
-F: Documentation/devicetree/bindings/net/can/
-F: drivers/net/can/
-F: include/linux/can/dev.h
-F: include/linux/can/platform/
-F: include/uapi/linux/can/error.h
-F: include/uapi/linux/can/netlink.h
-
CAPABILITIES
M: Serge Hallyn <serge@hallyn.com>
L: linux-security-module@vger.kernel.org
@@ -3067,12 +3177,12 @@ M: Kevin Tsai <ktsai@capellamicro.com>
S: Maintained
F: drivers/iio/light/cm*
-CAVIUM THUNDERX2 ARM64 SOC
-M: Jayachandran C <jnair@caviumnetworks.com>
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+CARL9170 LINUX COMMUNITY WIRELESS DRIVER
+M: Christian Lamparter <chunkeey@googlemail.com>
+L: linux-wireless@vger.kernel.org
+W: http://wireless.kernel.org/en/users/Drivers/carl9170
S: Maintained
-F: arch/arm64/boot/dts/cavium/thunder2-99xx*
-F: Documentation/devicetree/bindings/arm/cavium-thunder2.txt
+F: drivers/net/wireless/ath/carl9170/
CAVIUM I2C DRIVER
M: Jan Glauber <jglauber@cavium.com>
@@ -3082,6 +3192,16 @@ S: Supported
F: drivers/i2c/busses/i2c-octeon*
F: drivers/i2c/busses/i2c-thunderx*
+CAVIUM LIQUIDIO NETWORK DRIVER
+M: Derek Chickles <derek.chickles@caviumnetworks.com>
+M: Satanand Burla <satananda.burla@caviumnetworks.com>
+M: Felix Manlunas <felix.manlunas@caviumnetworks.com>
+M: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
+L: netdev@vger.kernel.org
+W: http://www.cavium.com
+S: Supported
+F: drivers/net/ethernet/cavium/liquidio/
+
CAVIUM MMC DRIVER
M: Jan Glauber <jglauber@cavium.com>
M: David Daney <david.daney@cavium.com>
@@ -3090,16 +3210,6 @@ W: http://www.cavium.com
S: Supported
F: drivers/mmc/host/cavium*
-CAVIUM LIQUIDIO NETWORK DRIVER
-M: Derek Chickles <derek.chickles@caviumnetworks.com>
-M: Satanand Burla <satananda.burla@caviumnetworks.com>
-M: Felix Manlunas <felix.manlunas@caviumnetworks.com>
-M: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
-L: netdev@vger.kernel.org
-W: http://www.cavium.com
-S: Supported
-F: drivers/net/ethernet/cavium/liquidio/
-
CAVIUM OCTEON-TX CRYPTO DRIVER
M: George Cherian <george.cherian@cavium.com>
L: linux-crypto@vger.kernel.org
@@ -3107,6 +3217,14 @@ W: http://www.cavium.com
S: Supported
F: drivers/crypto/cavium/cpt/
+CAVIUM THUNDERX2 ARM64 SOC
+M: Robert Richter <rrichter@cavium.com>
+M: Jayachandran C <jnair@caviumnetworks.com>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+F: arch/arm64/boot/dts/cavium/thunder2-99xx*
+F: Documentation/devicetree/bindings/arm/cavium-thunder2.txt
+
CC2520 IEEE-802.15.4 RADIO DRIVER
M: Varka Bhadram <varkabhadram@gmail.com>
L: linux-wpan@vger.kernel.org
@@ -3137,6 +3255,7 @@ F: include/media/cec.h
F: include/media/cec-notifier.h
F: include/uapi/linux/cec.h
F: include/uapi/linux/cec-funcs.h
+F: Documentation/devicetree/bindings/media/cec.txt
CELL BROADBAND ENGINE ARCHITECTURE
M: Arnd Bergmann <arnd@arndb.de>
@@ -3194,12 +3313,6 @@ F: drivers/usb/host/whci/
F: drivers/usb/wusbcore/
F: include/linux/usb/wusb*
-HT16K33 LED CONTROLLER DRIVER
-M: Robin van der Gracht <robin@protonic.nl>
-S: Maintained
-F: drivers/auxdisplay/ht16k33.c
-F: Documentation/devicetree/bindings/display/ht16k33.txt
-
CFAG12864B LCD DRIVER
M: Miguel Ojeda Sandonis <miguel.ojeda.sandonis@gmail.com>
W: http://miguelojeda.es/auxdisplay.htm
@@ -3265,11 +3378,40 @@ F: Documentation/devicetree/bindings/input/touchscreen/chipone_icn8318.txt
F: drivers/input/touchscreen/chipone_icn8318.c
CHROME HARDWARE PLATFORM SUPPORT
+M: Benson Leung <bleung@chromium.org>
M: Olof Johansson <olof@lixom.net>
S: Maintained
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform.git
F: drivers/platform/chrome/
+CIRRUS LOGIC AUDIO CODEC DRIVERS
+M: Brian Austin <brian.austin@cirrus.com>
+M: Paul Handrigan <Paul.Handrigan@cirrus.com>
+L: alsa-devel@alsa-project.org (moderated for non-subscribers)
+S: Maintained
+F: sound/soc/codecs/cs*
+
+CIRRUS LOGIC EP93XX ETHERNET DRIVER
+M: Hartley Sweeten <hsweeten@visionengravers.com>
+L: netdev@vger.kernel.org
+S: Maintained
+F: drivers/net/ethernet/cirrus/ep93xx_eth.c
+
+CISCO FCOE HBA DRIVER
+M: Satish Kharat <satishkh@cisco.com>
+M: Sesidhar Baddela <sebaddel@cisco.com>
+M: Karan Tilak Kumar <kartilak@cisco.com>
+L: linux-scsi@vger.kernel.org
+S: Supported
+F: drivers/scsi/fnic/
+
+CISCO SCSI HBA DRIVER
+M: Karan Tilak Kumar <kartilak@cisco.com>
+M: Sesidhar Baddela <sebaddel@cisco.com>
+L: linux-scsi@vger.kernel.org
+S: Supported
+F: drivers/scsi/snic/
+
CISCO VIC ETHERNET NIC DRIVER
M: Christian Benvenuti <benve@cisco.com>
M: Govindarajulu Varadarajan <_govind@gmx.com>
@@ -3283,19 +3425,6 @@ M: Dave Goodell <dgoodell@cisco.com>
S: Supported
F: drivers/infiniband/hw/usnic/
-CIRRUS LOGIC EP93XX ETHERNET DRIVER
-M: Hartley Sweeten <hsweeten@visionengravers.com>
-L: netdev@vger.kernel.org
-S: Maintained
-F: drivers/net/ethernet/cirrus/ep93xx_eth.c
-
-CIRRUS LOGIC AUDIO CODEC DRIVERS
-M: Brian Austin <brian.austin@cirrus.com>
-M: Paul Handrigan <Paul.Handrigan@cirrus.com>
-L: alsa-devel@alsa-project.org (moderated for non-subscribers)
-S: Maintained
-F: sound/soc/codecs/cs*
-
CLEANCACHE API
M: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
L: linux-kernel@vger.kernel.org
@@ -3317,21 +3446,6 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core
S: Supported
F: drivers/clocksource
-CISCO FCOE HBA DRIVER
-M: Satish Kharat <satishkh@cisco.com>
-M: Sesidhar Baddela <sebaddel@cisco.com>
-M: Karan Tilak Kumar <kartilak@cisco.com>
-L: linux-scsi@vger.kernel.org
-S: Supported
-F: drivers/scsi/fnic/
-
-CISCO SCSI HBA DRIVER
-M: Karan Tilak Kumar <kartilak@cisco.com>
-M: Sesidhar Baddela <sebaddel@cisco.com>
-L: linux-scsi@vger.kernel.org
-S: Supported
-F: drivers/scsi/snic/
-
CMPC ACPI DRIVER
M: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
M: Daniel Oliveira Nascimento <don@syst.com.br>
@@ -3407,17 +3521,17 @@ L: linux-pci@vger.kernel.org
S: Maintained
F: drivers/pci/hotplug/cpci_hotplug*
-COMPACTPCI HOTPLUG ZIATECH ZT5550 DRIVER
+COMPACTPCI HOTPLUG GENERIC DRIVER
M: Scott Murray <scott@spiteful.org>
L: linux-pci@vger.kernel.org
S: Maintained
-F: drivers/pci/hotplug/cpcihp_zt5550.*
+F: drivers/pci/hotplug/cpcihp_generic.c
-COMPACTPCI HOTPLUG GENERIC DRIVER
+COMPACTPCI HOTPLUG ZIATECH ZT5550 DRIVER
M: Scott Murray <scott@spiteful.org>
L: linux-pci@vger.kernel.org
S: Maintained
-F: drivers/pci/hotplug/cpcihp_generic.c
+F: drivers/pci/hotplug/cpcihp_zt5550.*
COMPAL LAPTOP SUPPORT
M: Cezary Jackiewicz <cezary.jackiewicz@gmail.com>
@@ -3520,6 +3634,18 @@ F: drivers/cpufreq/arm_big_little.h
F: drivers/cpufreq/arm_big_little.c
F: drivers/cpufreq/arm_big_little_dt.c
+CPU POWER MONITORING SUBSYSTEM
+M: Thomas Renninger <trenn@suse.com>
+L: linux-pm@vger.kernel.org
+S: Maintained
+F: tools/power/cpupower/
+
+CPUID/MSR DRIVER
+M: "H. Peter Anvin" <hpa@zytor.com>
+S: Maintained
+F: arch/x86/kernel/cpuid.c
+F: arch/x86/kernel/msr.c
+
CPUIDLE DRIVER - ARM BIG LITTLE
M: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
M: Daniel Lezcano <daniel.lezcano@linaro.org>
@@ -3549,18 +3675,6 @@ B: https://bugzilla.kernel.org
F: drivers/cpuidle/*
F: include/linux/cpuidle.h
-CPUID/MSR DRIVER
-M: "H. Peter Anvin" <hpa@zytor.com>
-S: Maintained
-F: arch/x86/kernel/cpuid.c
-F: arch/x86/kernel/msr.c
-
-CPU POWER MONITORING SUBSYSTEM
-M: Thomas Renninger <trenn@suse.com>
-L: linux-pm@vger.kernel.org
-S: Maintained
-F: tools/power/cpupower/
-
CRAMFS FILESYSTEM
W: http://sourceforge.net/projects/cramfs/
S: Orphan / Obsolete
@@ -3586,7 +3700,6 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6.git
S: Maintained
F: Documentation/crypto/
F: Documentation/devicetree/bindings/crypto/
-F: Documentation/DocBook/crypto-API.tmpl
F: arch/*/crypto/
F: crypto/
F: drivers/crypto/
@@ -3691,6 +3804,13 @@ S: Supported
F: drivers/infiniband/hw/cxgb3/
F: include/uapi/rdma/cxgb3-abi.h
+CXGB4 CRYPTO DRIVER (chcr)
+M: Harsh Jain <harsh@chelsio.com>
+L: linux-crypto@vger.kernel.org
+W: http://www.chelsio.com
+S: Supported
+F: drivers/crypto/chelsio
+
CXGB4 ETHERNET DRIVER (CXGB4)
M: Ganesh Goudar <ganeshgr@chelsio.com>
L: netdev@vger.kernel.org
@@ -3721,8 +3841,8 @@ S: Supported
F: drivers/net/ethernet/chelsio/cxgb4vf/
CXL (IBM Coherent Accelerator Processor Interface CAPI) DRIVER
-M: Ian Munsie <imunsie@au1.ibm.com>
M: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
+M: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
L: linuxppc-dev@lists.ozlabs.org
S: Supported
F: arch/powerpc/platforms/powernv/pci-cxl.c
@@ -3742,14 +3862,6 @@ F: drivers/scsi/cxlflash/
F: include/uapi/scsi/cxlflash_ioctls.h
F: Documentation/powerpc/cxlflash.txt
-STMMAC ETHERNET DRIVER
-M: Giuseppe Cavallaro <peppe.cavallaro@st.com>
-M: Alexandre Torgue <alexandre.torgue@st.com>
-L: netdev@vger.kernel.org
-W: http://www.stlinux.com
-S: Supported
-F: drivers/net/ethernet/stmicro/stmmac/
-
CYBERPRO FB DRIVER
M: Russell King <linux@armlinux.org.uk>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -3873,15 +3985,15 @@ L: platform-driver-x86@vger.kernel.org
S: Maintained
F: drivers/platform/x86/dell-laptop.c
-DELL LAPTOP RBTN DRIVER
+DELL LAPTOP FREEFALL DRIVER
M: Pali Rohár <pali.rohar@gmail.com>
S: Maintained
-F: drivers/platform/x86/dell-rbtn.*
+F: drivers/platform/x86/dell-smo8800.c
-DELL LAPTOP FREEFALL DRIVER
+DELL LAPTOP RBTN DRIVER
M: Pali Rohár <pali.rohar@gmail.com>
S: Maintained
-F: drivers/platform/x86/dell-smo8800.c
+F: drivers/platform/x86/dell-rbtn.*
DELL LAPTOP SMM DRIVER
M: Pali Rohár <pali.rohar@gmail.com>
@@ -3901,6 +4013,20 @@ M: Pali Rohár <pali.rohar@gmail.com>
S: Maintained
F: drivers/platform/x86/dell-wmi.c
+DELTA ST MEDIA DRIVER
+M: Hugues Fruchet <hugues.fruchet@st.com>
+L: linux-media@vger.kernel.org
+T: git git://linuxtv.org/media_tree.git
+W: https://linuxtv.org
+S: Supported
+F: drivers/media/platform/sti/delta
+
+DENALI NAND DRIVER
+M: Masahiro Yamada <yamada.masahiro@socionext.com>
+L: linux-mtd@lists.infradead.org
+S: Supported
+F: drivers/mtd/nand/denali*
+
DESIGNWARE USB2 DRD IP DRIVER
M: John Youn <johnyoun@synopsys.com>
L: linux-usb@vger.kernel.org
@@ -3949,15 +4075,6 @@ F: drivers/devfreq/devfreq-event.c
F: include/linux/devfreq-event.h
F: Documentation/devicetree/bindings/devfreq/event/
-BUS FREQUENCY DRIVER FOR SAMSUNG EXYNOS
-M: Chanwoo Choi <cw00.choi@samsung.com>
-L: linux-pm@vger.kernel.org
-L: linux-samsung-soc@vger.kernel.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/mzx/devfreq.git
-S: Maintained
-F: drivers/devfreq/exynos-bus.c
-F: Documentation/devicetree/bindings/devfreq/exynos-bus.txt
-
DEVICE NUMBER REGISTRY
M: Torben Mathiasen <device@lanana.org>
W: http://lanana.org/docs/device-list/index.html
@@ -3994,7 +4111,10 @@ W: http://www.dialog-semiconductor.com/products
S: Supported
F: Documentation/hwmon/da90??
F: Documentation/devicetree/bindings/mfd/da90*.txt
+F: Documentation/devicetree/bindings/input/da90??-onkey.txt
+F: Documentation/devicetree/bindings/thermal/da90??-thermal.txt
F: Documentation/devicetree/bindings/regulator/da92*.txt
+F: Documentation/devicetree/bindings/watchdog/da92??-wdt.txt
F: Documentation/devicetree/bindings/sound/da[79]*.txt
F: drivers/gpio/gpio-da90??.c
F: drivers/hwmon/da90??-hwmon.c
@@ -4009,6 +4129,7 @@ F: drivers/power/supply/da9052-battery.c
F: drivers/power/supply/da91??-*.c
F: drivers/regulator/da903x.c
F: drivers/regulator/da9???-regulator.[ch]
+F: drivers/thermal/da90??-thermal.c
F: drivers/rtc/rtc-da90??.c
F: drivers/video/backlight/da90??_bl.c
F: drivers/watchdog/da90??_wdt.c
@@ -4051,7 +4172,9 @@ F: include/linux/dax.h
F: include/trace/events/fs_dax.h
DIRECTORY NOTIFICATION (DNOTIFY)
-M: Eric Paris <eparis@parisplace.org>
+M: Jan Kara <jack@suse.cz>
+R: Amir Goldstein <amir73il@gmail.com>
+L: linux-fsdevel@vger.kernel.org
S: Maintained
F: Documentation/filesystems/dnotify.txt
F: fs/notify/dnotify/
@@ -4103,20 +4226,6 @@ F: include/linux/*fence.h
F: Documentation/driver-api/dma-buf.rst
T: git git://anongit.freedesktop.org/drm/drm-misc
-SYNC FILE FRAMEWORK
-M: Sumit Semwal <sumit.semwal@linaro.org>
-R: Gustavo Padovan <gustavo@padovan.org>
-S: Maintained
-L: linux-media@vger.kernel.org
-L: dri-devel@lists.freedesktop.org
-F: drivers/dma-buf/sync_*
-F: drivers/dma-buf/dma-fence*
-F: drivers/dma-buf/sw_sync.c
-F: include/linux/sync_file.h
-F: include/uapi/linux/sync_file.h
-F: Documentation/sync_file.txt
-T: git git://anongit.freedesktop.org/drm/drm-misc
-
DMA GENERIC OFFLOAD ENGINE SUBSYSTEM
M: Vinod Koul <vinod.koul@intel.com>
L: dmaengine@vger.kernel.org
@@ -4128,6 +4237,21 @@ F: Documentation/devicetree/bindings/dma/
F: Documentation/dmaengine/
T: git git://git.infradead.org/users/vkoul/slave-dma.git
+DMA MAPPING HELPERS
+M: Christoph Hellwig <hch@lst.de>
+M: Marek Szyprowski <m.szyprowski@samsung.com>
+R: Robin Murphy <robin.murphy@arm.com>
+L: iommu@lists.linux-foundation.org
+T: git git://git.infradead.org/users/hch/dma-mapping.git
+W: http://git.infradead.org/users/hch/dma-mapping.git
+S: Supported
+F: lib/dma-debug.c
+F: lib/dma-noop.c
+F: lib/dma-virt.c
+F: drivers/base/dma-mapping.c
+F: drivers/base/dma-coherent.c
+F: include/linux/dma-mapping.h
+
DME1737 HARDWARE MONITOR DRIVER
M: Juerg Haefliger <juergh@gmail.com>
L: linux-hwmon@vger.kernel.org
@@ -4149,8 +4273,7 @@ M: Jonathan Corbet <corbet@lwn.net>
L: linux-doc@vger.kernel.org
S: Maintained
F: Documentation/
-F: scripts/docproc.c
-F: scripts/kernel-doc*
+F: scripts/kernel-doc
X: Documentation/ABI/
X: Documentation/devicetree/
X: Documentation/acpi
@@ -4159,6 +4282,13 @@ X: Documentation/spi
X: Documentation/media
T: git git://git.lwn.net/linux.git docs-next
+DONGWOON DW9714 LENS VOICE COIL DRIVER
+M: Sakari Ailus <sakari.ailus@linux.intel.com>
+L: linux-media@vger.kernel.org
+T: git git://linuxtv.org/media_tree.git
+S: Maintained
+F: drivers/media/i2c/dw9714.c
+
DOUBLETALK DRIVER
M: "James R. Van Zandt" <jrv@vanzandt.mv.com>
L: blinux-list@redhat.com
@@ -4210,48 +4340,25 @@ F: include/linux/debugfs.h
F: include/linux/kobj*
F: lib/kobj*
-DRM DRIVERS
-M: David Airlie <airlied@linux.ie>
-L: dri-devel@lists.freedesktop.org
-T: git git://people.freedesktop.org/~airlied/linux
-B: https://bugs.freedesktop.org/
-C: irc://chat.freenode.net/dri-devel
+DRIVERS FOR ADAPTIVE VOLTAGE SCALING (AVS)
+M: Kevin Hilman <khilman@kernel.org>
+M: Nishanth Menon <nm@ti.com>
S: Maintained
-F: drivers/gpu/drm/
-F: drivers/gpu/vga/
-F: Documentation/devicetree/bindings/display/
-F: Documentation/devicetree/bindings/gpu/
-F: Documentation/devicetree/bindings/video/
-F: Documentation/gpu/
-F: include/drm/
-F: include/uapi/drm/
-F: include/linux/vga*
+F: drivers/power/avs/
+F: include/linux/power/smartreflex.h
+L: linux-pm@vger.kernel.org
-DRM DRIVERS AND MISC GPU PATCHES
-M: Daniel Vetter <daniel.vetter@intel.com>
-M: Jani Nikula <jani.nikula@linux.intel.com>
-M: Sean Paul <seanpaul@chromium.org>
-W: https://01.org/linuxgraphics/gfx-docs/maintainer-tools/drm-misc.html
-S: Maintained
+DRM DRIVER FOR ARM PL111 CLCD
+M: Eric Anholt <eric@anholt.net>
T: git git://anongit.freedesktop.org/drm/drm-misc
-F: Documentation/gpu/
-F: drivers/gpu/vga/
-F: drivers/gpu/drm/*
-F: include/drm/drm*
-F: include/uapi/drm/drm*
-F: include/linux/vga*
+S: Supported
+F: drivers/gpu/drm/pl111/
DRM DRIVER FOR AST SERVER GRAPHICS CHIPS
M: Dave Airlie <airlied@redhat.com>
S: Odd Fixes
F: drivers/gpu/drm/ast/
-DRM DRIVERS FOR BRIDGE CHIPS
-M: Archit Taneja <architt@codeaurora.org>
-S: Maintained
-T: git git://anongit.freedesktop.org/drm/drm-misc
-F: drivers/gpu/drm/bridge/
-
DRM DRIVER FOR BOCHS VIRTUAL GPU
M: Gerd Hoffmann <kraxel@redhat.com>
L: virtualization@lists.linux-foundation.org
@@ -4259,6 +4366,53 @@ T: git git://anongit.freedesktop.org/drm/drm-misc
S: Maintained
F: drivers/gpu/drm/bochs/
+DRM DRIVER FOR INTEL I810 VIDEO CARDS
+S: Orphan / Obsolete
+F: drivers/gpu/drm/i810/
+F: include/uapi/drm/i810_drm.h
+
+DRM DRIVER FOR MATROX G200/G400 GRAPHICS CARDS
+S: Orphan / Obsolete
+F: drivers/gpu/drm/mga/
+F: include/uapi/drm/mga_drm.h
+
+DRM DRIVER FOR MGA G200 SERVER GRAPHICS CHIPS
+M: Dave Airlie <airlied@redhat.com>
+S: Odd Fixes
+F: drivers/gpu/drm/mgag200/
+
+DRM DRIVER FOR MI0283QT
+M: Noralf Trønnes <noralf@tronnes.org>
+S: Maintained
+F: drivers/gpu/drm/tinydrm/mi0283qt.c
+F: Documentation/devicetree/bindings/display/multi-inno,mi0283qt.txt
+
+DRM DRIVER FOR MSM ADRENO GPU
+M: Rob Clark <robdclark@gmail.com>
+L: linux-arm-msm@vger.kernel.org
+L: dri-devel@lists.freedesktop.org
+L: freedreno@lists.freedesktop.org
+T: git git://people.freedesktop.org/~robclark/linux
+S: Maintained
+F: drivers/gpu/drm/msm/
+F: include/uapi/drm/msm_drm.h
+F: Documentation/devicetree/bindings/display/msm/
+
+DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS
+M: Ben Skeggs <bskeggs@redhat.com>
+L: dri-devel@lists.freedesktop.org
+L: nouveau@lists.freedesktop.org
+T: git git://github.com/skeggsb/linux
+S: Supported
+F: drivers/gpu/drm/nouveau/
+F: include/uapi/drm/nouveau_drm.h
+
+DRM DRIVER FOR PERVASIVE DISPLAYS REPAPER PANELS
+M: Noralf Trønnes <noralf@tronnes.org>
+S: Maintained
+F: drivers/gpu/drm/tinydrm/repaper.c
+F: Documentation/devicetree/bindings/display/repaper.txt
+
DRM DRIVER FOR QEMU'S CIRRUS DEVICE
M: Dave Airlie <airlied@redhat.com>
M: Gerd Hoffmann <kraxel@redhat.com>
@@ -4268,59 +4422,86 @@ S: Obsolete
W: https://www.kraxel.org/blog/2014/10/qemu-using-cirrus-considered-harmful/
F: drivers/gpu/drm/cirrus/
-RADEON and AMDGPU DRM DRIVERS
-M: Alex Deucher <alexander.deucher@amd.com>
-M: Christian König <christian.koenig@amd.com>
-L: amd-gfx@lists.freedesktop.org
-T: git git://people.freedesktop.org/~agd5f/linux
-S: Supported
-F: drivers/gpu/drm/radeon/
-F: include/uapi/drm/radeon_drm.h
-F: drivers/gpu/drm/amd/
-F: include/uapi/drm/amdgpu_drm.h
+DRM DRIVER FOR QXL VIRTUAL GPU
+M: Dave Airlie <airlied@redhat.com>
+M: Gerd Hoffmann <kraxel@redhat.com>
+L: virtualization@lists.linux-foundation.org
+T: git git://anongit.freedesktop.org/drm/drm-misc
+S: Maintained
+F: drivers/gpu/drm/qxl/
+F: include/uapi/drm/qxl_drm.h
-DRM PANEL DRIVERS
-M: Thierry Reding <thierry.reding@gmail.com>
-L: dri-devel@lists.freedesktop.org
-T: git git://anongit.freedesktop.org/tegra/linux.git
+DRM DRIVER FOR RAGE 128 VIDEO CARDS
+S: Orphan / Obsolete
+F: drivers/gpu/drm/r128/
+F: include/uapi/drm/r128_drm.h
+
+DRM DRIVER FOR SAVAGE VIDEO CARDS
+S: Orphan / Obsolete
+F: drivers/gpu/drm/savage/
+F: include/uapi/drm/savage_drm.h
+
+DRM DRIVER FOR SIS VIDEO CARDS
+S: Orphan / Obsolete
+F: drivers/gpu/drm/sis/
+F: include/uapi/drm/sis_drm.h
+
+DRM DRIVER FOR SITRONIX ST7586 PANELS
+M: David Lechner <david@lechnology.com>
S: Maintained
-F: drivers/gpu/drm/drm_panel.c
-F: drivers/gpu/drm/panel/
-F: include/drm/drm_panel.h
-F: Documentation/devicetree/bindings/display/panel/
+F: drivers/gpu/drm/tinydrm/st7586.c
+F: Documentation/devicetree/bindings/display/st7586.txt
-INTEL DRM DRIVERS (excluding Poulsbo, Moorestown and derivative chipsets)
-M: Daniel Vetter <daniel.vetter@intel.com>
-M: Jani Nikula <jani.nikula@linux.intel.com>
-L: intel-gfx@lists.freedesktop.org
-W: https://01.org/linuxgraphics/
-B: https://01.org/linuxgraphics/documentation/how-report-bugs
-C: irc://chat.freenode.net/intel-gfx
-Q: http://patchwork.freedesktop.org/project/intel-gfx/
-T: git git://anongit.freedesktop.org/drm-intel
-S: Supported
-F: drivers/gpu/drm/i915/
-F: include/drm/i915*
-F: include/uapi/drm/i915_drm.h
-F: Documentation/gpu/i915.rst
+DRM DRIVER FOR TDFX VIDEO CARDS
+S: Orphan / Obsolete
+F: drivers/gpu/drm/tdfx/
-INTEL GVT-g DRIVERS (Intel GPU Virtualization)
-M: Zhenyu Wang <zhenyuw@linux.intel.com>
-M: Zhi Wang <zhi.a.wang@intel.com>
-L: intel-gvt-dev@lists.freedesktop.org
-L: intel-gfx@lists.freedesktop.org
-W: https://01.org/igvt-g
-T: git https://github.com/01org/gvt-linux.git
-S: Supported
-F: drivers/gpu/drm/i915/gvt/
+DRM DRIVER FOR USB DISPLAYLINK VIDEO ADAPTERS
+M: Dave Airlie <airlied@redhat.com>
+S: Odd Fixes
+F: drivers/gpu/drm/udl/
-DRM DRIVERS FOR ATMEL HLCDC
-M: Boris Brezillon <boris.brezillon@free-electrons.com>
+DRM DRIVER FOR VMWARE VIRTUAL GPU
+M: "VMware Graphics" <linux-graphics-maintainer@vmware.com>
+M: Sinclair Yeh <syeh@vmware.com>
+M: Thomas Hellstrom <thellstrom@vmware.com>
L: dri-devel@lists.freedesktop.org
+T: git git://people.freedesktop.org/~syeh/repos_linux
+T: git git://people.freedesktop.org/~thomash/linux
S: Supported
-F: drivers/gpu/drm/atmel-hlcdc/
-F: Documentation/devicetree/bindings/drm/atmel/
+F: drivers/gpu/drm/vmwgfx/
+F: include/uapi/drm/vmwgfx_drm.h
+
+DRM DRIVERS
+M: David Airlie <airlied@linux.ie>
+L: dri-devel@lists.freedesktop.org
+T: git git://people.freedesktop.org/~airlied/linux
+B: https://bugs.freedesktop.org/
+C: irc://chat.freenode.net/dri-devel
+S: Maintained
+F: drivers/gpu/drm/
+F: drivers/gpu/vga/
+F: Documentation/devicetree/bindings/display/
+F: Documentation/devicetree/bindings/gpu/
+F: Documentation/devicetree/bindings/video/
+F: Documentation/gpu/
+F: include/drm/
+F: include/uapi/drm/
+F: include/linux/vga*
+
+DRM DRIVERS AND MISC GPU PATCHES
+M: Daniel Vetter <daniel.vetter@intel.com>
+M: Jani Nikula <jani.nikula@linux.intel.com>
+M: Sean Paul <seanpaul@chromium.org>
+W: https://01.org/linuxgraphics/gfx-docs/maintainer-tools/drm-misc.html
+S: Maintained
T: git git://anongit.freedesktop.org/drm/drm-misc
+F: Documentation/gpu/
+F: drivers/gpu/vga/
+F: drivers/gpu/drm/*
+F: include/drm/drm*
+F: include/uapi/drm/drm*
+F: include/linux/vga*
DRM DRIVERS FOR ALLWINNER A10
M: Maxime Ripard <maxime.ripard@free-electrons.com>
@@ -4342,6 +4523,22 @@ F: Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.txt
F: Documentation/gpu/meson.rst
T: git git://anongit.freedesktop.org/drm/drm-misc
+DRM DRIVERS FOR ATMEL HLCDC
+M: Boris Brezillon <boris.brezillon@free-electrons.com>
+L: dri-devel@lists.freedesktop.org
+S: Supported
+F: drivers/gpu/drm/atmel-hlcdc/
+F: Documentation/devicetree/bindings/drm/atmel/
+T: git git://anongit.freedesktop.org/drm/drm-misc
+
+DRM DRIVERS FOR BRIDGE CHIPS
+M: Archit Taneja <architt@codeaurora.org>
+M: Andrzej Hajda <a.hajda@samsung.com>
+R: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
+S: Maintained
+T: git git://anongit.freedesktop.org/drm/drm-misc
+F: drivers/gpu/drm/bridge/
+
DRM DRIVERS FOR EXYNOS
M: Inki Dae <inki.dae@samsung.com>
M: Joonyoung Shim <jy0922.shim@samsung.com>
@@ -4390,11 +4587,6 @@ S: Maintained
F: drivers/gpu/drm/hisilicon/
F: Documentation/devicetree/bindings/display/hisilicon/
-DRM DRIVER FOR INTEL I810 VIDEO CARDS
-S: Orphan / Obsolete
-F: drivers/gpu/drm/i810/
-F: include/uapi/drm/i810_drm.h
-
DRM DRIVERS FOR MEDIATEK
M: CK Hu <ck.hu@mediatek.com>
M: Philipp Zabel <p.zabel@pengutronix.de>
@@ -4403,32 +4595,6 @@ S: Supported
F: drivers/gpu/drm/mediatek/
F: Documentation/devicetree/bindings/display/mediatek/
-DRM DRIVER FOR MI0283QT
-M: Noralf Trønnes <noralf@tronnes.org>
-S: Maintained
-F: drivers/gpu/drm/tinydrm/mi0283qt.c
-F: Documentation/devicetree/bindings/display/multi-inno,mi0283qt.txt
-
-DRM DRIVER FOR MSM ADRENO GPU
-M: Rob Clark <robdclark@gmail.com>
-L: linux-arm-msm@vger.kernel.org
-L: dri-devel@lists.freedesktop.org
-L: freedreno@lists.freedesktop.org
-T: git git://people.freedesktop.org/~robclark/linux
-S: Maintained
-F: drivers/gpu/drm/msm/
-F: include/uapi/drm/msm_drm.h
-F: Documentation/devicetree/bindings/display/msm/
-
-DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS
-M: Ben Skeggs <bskeggs@redhat.com>
-L: dri-devel@lists.freedesktop.org
-L: nouveau@lists.freedesktop.org
-T: git git://github.com/skeggsb/linux
-S: Supported
-F: drivers/gpu/drm/nouveau/
-F: include/uapi/drm/nouveau_drm.h
-
DRM DRIVERS FOR NVIDIA TEGRA
M: Thierry Reding <thierry.reding@gmail.com>
L: dri-devel@lists.freedesktop.org
@@ -4441,21 +4607,6 @@ F: include/linux/host1x.h
F: include/uapi/drm/tegra_drm.h
F: Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
-DRM DRIVER FOR MATROX G200/G400 GRAPHICS CARDS
-S: Orphan / Obsolete
-F: drivers/gpu/drm/mga/
-F: include/uapi/drm/mga_drm.h
-
-DRM DRIVER FOR MGA G200 SERVER GRAPHICS CHIPS
-M: Dave Airlie <airlied@redhat.com>
-S: Odd Fixes
-F: drivers/gpu/drm/mgag200/
-
-DRM DRIVER FOR RAGE 128 VIDEO CARDS
-S: Orphan / Obsolete
-F: drivers/gpu/drm/r128/
-F: include/uapi/drm/r128_drm.h
-
DRM DRIVERS FOR RENESAS
M: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
L: dri-devel@lists.freedesktop.org
@@ -4468,15 +4619,6 @@ F: include/linux/platform_data/shmob_drm.h
F: Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt
F: Documentation/devicetree/bindings/display/renesas,du.txt
-DRM DRIVER FOR QXL VIRTUAL GPU
-M: Dave Airlie <airlied@redhat.com>
-M: Gerd Hoffmann <kraxel@redhat.com>
-L: virtualization@lists.linux-foundation.org
-T: git git://anongit.freedesktop.org/drm/drm-misc
-S: Maintained
-F: drivers/gpu/drm/qxl/
-F: include/uapi/drm/qxl_drm.h
-
DRM DRIVERS FOR ROCKCHIP
M: Mark Yao <mark.yao@rock-chips.com>
L: dri-devel@lists.freedesktop.org
@@ -4485,16 +4627,6 @@ F: drivers/gpu/drm/rockchip/
F: Documentation/devicetree/bindings/display/rockchip/
T: git git://anongit.freedesktop.org/drm/drm-misc
-DRM DRIVER FOR SAVAGE VIDEO CARDS
-S: Orphan / Obsolete
-F: drivers/gpu/drm/savage/
-F: include/uapi/drm/savage_drm.h
-
-DRM DRIVER FOR SIS VIDEO CARDS
-S: Orphan / Obsolete
-F: drivers/gpu/drm/sis/
-F: include/uapi/drm/sis_drm.h
-
DRM DRIVERS FOR STI
M: Benjamin Gaignard <benjamin.gaignard@linaro.org>
M: Vincent Abriou <vincent.abriou@st.com>
@@ -4504,36 +4636,31 @@ S: Maintained
F: drivers/gpu/drm/sti
F: Documentation/devicetree/bindings/display/st,stih4xx.txt
-DRM DRIVER FOR TDFX VIDEO CARDS
-S: Orphan / Obsolete
-F: drivers/gpu/drm/tdfx/
-
-DRM DRIVER FOR USB DISPLAYLINK VIDEO ADAPTERS
-M: Dave Airlie <airlied@redhat.com>
-S: Odd Fixes
-F: drivers/gpu/drm/udl/
+DRM DRIVERS FOR STM
+M: Yannick Fertre <yannick.fertre@st.com>
+M: Philippe Cornu <philippe.cornu@st.com>
+M: Benjamin Gaignard <benjamin.gaignard@linaro.org>
+M: Vincent Abriou <vincent.abriou@st.com>
+L: dri-devel@lists.freedesktop.org
+T: git git://anongit.freedesktop.org/drm/drm-misc
+S: Maintained
+F: drivers/gpu/drm/stm
+F: Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
-DRM DRIVERS FOR VIVANTE GPU IP
-M: Lucas Stach <l.stach@pengutronix.de>
-R: Russell King <linux+etnaviv@armlinux.org.uk>
-R: Christian Gmeiner <christian.gmeiner@gmail.com>
-L: etnaviv@lists.freedesktop.org
+DRM DRIVERS FOR TI LCDC
+M: Jyri Sarha <jsarha@ti.com>
+R: Tomi Valkeinen <tomi.valkeinen@ti.com>
L: dri-devel@lists.freedesktop.org
S: Maintained
-F: drivers/gpu/drm/etnaviv/
-F: include/uapi/drm/etnaviv_drm.h
-F: Documentation/devicetree/bindings/display/etnaviv/
+F: drivers/gpu/drm/tilcdc/
+F: Documentation/devicetree/bindings/display/tilcdc/
-DRM DRIVER FOR VMWARE VIRTUAL GPU
-M: "VMware Graphics" <linux-graphics-maintainer@vmware.com>
-M: Sinclair Yeh <syeh@vmware.com>
-M: Thomas Hellstrom <thellstrom@vmware.com>
+DRM DRIVERS FOR TI OMAP
+M: Tomi Valkeinen <tomi.valkeinen@ti.com>
L: dri-devel@lists.freedesktop.org
-T: git git://people.freedesktop.org/~syeh/repos_linux
-T: git git://people.freedesktop.org/~thomash/linux
-S: Supported
-F: drivers/gpu/drm/vmwgfx/
-F: include/uapi/drm/vmwgfx_drm.h
+S: Maintained
+F: drivers/gpu/drm/omapdrm/
+F: Documentation/devicetree/bindings/display/ti/
DRM DRIVERS FOR VC4
M: Eric Anholt <eric@anholt.net>
@@ -4544,20 +4671,16 @@ F: include/uapi/drm/vc4_drm.h
F: Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt
T: git git://anongit.freedesktop.org/drm/drm-misc
-DRM DRIVERS FOR TI OMAP
-M: Tomi Valkeinen <tomi.valkeinen@ti.com>
-L: dri-devel@lists.freedesktop.org
-S: Maintained
-F: drivers/gpu/drm/omapdrm/
-F: Documentation/devicetree/bindings/display/ti/
-
-DRM DRIVERS FOR TI LCDC
-M: Jyri Sarha <jsarha@ti.com>
-R: Tomi Valkeinen <tomi.valkeinen@ti.com>
+DRM DRIVERS FOR VIVANTE GPU IP
+M: Lucas Stach <l.stach@pengutronix.de>
+R: Russell King <linux+etnaviv@armlinux.org.uk>
+R: Christian Gmeiner <christian.gmeiner@gmail.com>
+L: etnaviv@lists.freedesktop.org
L: dri-devel@lists.freedesktop.org
S: Maintained
-F: drivers/gpu/drm/tilcdc/
-F: Documentation/devicetree/bindings/display/tilcdc/
+F: drivers/gpu/drm/etnaviv/
+F: include/uapi/drm/etnaviv_drm.h
+F: Documentation/devicetree/bindings/display/etnaviv/
DRM DRIVERS FOR ZTE ZX
M: Shawn Guo <shawnguo@kernel.org>
@@ -4567,6 +4690,24 @@ F: drivers/gpu/drm/zte/
F: Documentation/devicetree/bindings/display/zte,vou.txt
T: git git://anongit.freedesktop.org/drm/drm-misc
+DRM PANEL DRIVERS
+M: Thierry Reding <thierry.reding@gmail.com>
+L: dri-devel@lists.freedesktop.org
+T: git git://anongit.freedesktop.org/tegra/linux.git
+S: Maintained
+F: drivers/gpu/drm/drm_panel.c
+F: drivers/gpu/drm/panel/
+F: include/drm/drm_panel.h
+F: Documentation/devicetree/bindings/display/panel/
+
+DRM TINYDRM DRIVERS
+M: Noralf Trønnes <noralf@tronnes.org>
+W: https://github.com/notro/tinydrm/wiki/Development
+T: git git://anongit.freedesktop.org/drm/drm-misc
+S: Maintained
+F: drivers/gpu/drm/tinydrm/
+F: include/drm/tinydrm/
+
DSBR100 USB FM RADIO DRIVER
M: Alexey Klimov <klimov.linux@gmail.com>
L: linux-media@vger.kernel.org
@@ -4753,19 +4894,6 @@ S: Supported
F: Documentation/filesystems/ecryptfs.txt
F: fs/ecryptfs/
-EDAC-CORE
-M: Borislav Petkov <bp@alien8.de>
-M: Mauro Carvalho Chehab <mchehab@s-opensource.com>
-M: Mauro Carvalho Chehab <mchehab@kernel.org>
-L: linux-edac@vger.kernel.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git for-next
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac.git linux_next
-S: Supported
-F: Documentation/admin-guide/ras.rst
-F: Documentation/driver-api/edac.rst
-F: drivers/edac/
-F: include/linux/edac.h
-
EDAC-AMD64
M: Borislav Petkov <bp@alien8.de>
L: linux-edac@vger.kernel.org
@@ -4787,6 +4915,19 @@ S: Supported
F: drivers/edac/octeon_edac*
F: drivers/edac/thunderx_edac*
+EDAC-CORE
+M: Borislav Petkov <bp@alien8.de>
+M: Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M: Mauro Carvalho Chehab <mchehab@kernel.org>
+L: linux-edac@vger.kernel.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git for-next
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac.git linux_next
+S: Supported
+F: Documentation/admin-guide/ras.rst
+F: Documentation/driver-api/edac.rst
+F: drivers/edac/
+F: include/linux/edac.h
+
EDAC-E752X
M: Mark Gross <mark.gross@intel.com>
L: linux-edac@vger.kernel.org
@@ -4811,12 +4952,6 @@ L: linux-edac@vger.kernel.org
S: Maintained
F: drivers/edac/ghes_edac.c
-EDAC-I82443BXGX
-M: Tim Small <tim@buttersideup.com>
-L: linux-edac@vger.kernel.org
-S: Maintained
-F: drivers/edac/i82443bxgx_edac.c
-
EDAC-I3000
L: linux-edac@vger.kernel.org
S: Orphan
@@ -4848,6 +4983,12 @@ L: linux-edac@vger.kernel.org
S: Maintained
F: drivers/edac/i7core_edac.c
+EDAC-I82443BXGX
+M: Tim Small <tim@buttersideup.com>
+L: linux-edac@vger.kernel.org
+S: Maintained
+F: drivers/edac/i82443bxgx_edac.c
+
EDAC-I82975X
M: Ranganathan Desikan <ravi@jetztechnologies.com>
M: "Arvind R." <arvino55@gmail.com>
@@ -4867,18 +5008,18 @@ L: linux-edac@vger.kernel.org
S: Maintained
F: drivers/edac/mpc85xx_edac.[ch]
-EDAC-PND2
-M: Tony Luck <tony.luck@intel.com>
-L: linux-edac@vger.kernel.org
-S: Maintained
-F: drivers/edac/pnd2_edac.[ch]
-
EDAC-PASEMI
M: Egor Martovetsky <egor@pasemi.com>
L: linux-edac@vger.kernel.org
S: Maintained
F: drivers/edac/pasemi_edac.c
+EDAC-PND2
+M: Tony Luck <tony.luck@intel.com>
+L: linux-edac@vger.kernel.org
+S: Maintained
+F: drivers/edac/pnd2_edac.[ch]
+
EDAC-R82600
M: Tim Small <tim@buttersideup.com>
L: linux-edac@vger.kernel.org
@@ -4898,13 +5039,6 @@ L: linux-edac@vger.kernel.org
S: Maintained
F: drivers/edac/skx_edac.c
-EDAC-XGENE
-APPLIED MICRO (APM) X-GENE SOC EDAC
-M: Loc Ho <lho@apm.com>
-S: Supported
-F: drivers/edac/xgene_edac.c
-F: Documentation/devicetree/bindings/edac/apm-xgene-edac.txt
-
EDIROL UA-101/UA-1000 DRIVER
M: Clemens Ladisch <clemens@ladisch.de>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
@@ -4912,21 +5046,12 @@ T: git git://git.alsa-project.org/alsa-kernel.git
S: Maintained
F: sound/usb/misc/ua101.c
-EXTENSIBLE FIRMWARE INTERFACE (EFI)
-M: Matt Fleming <matt@codeblueprint.co.uk>
-M: Ard Biesheuvel <ard.biesheuvel@linaro.org>
+EFI TEST DRIVER
L: linux-efi@vger.kernel.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git
+M: Ivan Hu <ivan.hu@canonical.com>
+M: Matt Fleming <matt@codeblueprint.co.uk>
S: Maintained
-F: Documentation/efi-stub.txt
-F: arch/*/kernel/efi.c
-F: arch/x86/boot/compressed/eboot.[ch]
-F: arch/*/include/asm/efi.h
-F: arch/x86/platform/efi/
-F: drivers/firmware/efi/
-F: include/linux/efi*.h
-F: arch/arm/boot/compressed/efi-header.S
-F: arch/arm64/kernel/efi-entry.S
+F: drivers/firmware/efi/test/
EFI VARIABLE FILESYSTEM
M: Matthew Garrett <matthew.garrett@nebula.com>
@@ -4943,13 +5068,6 @@ M: Peter Jones <pjones@redhat.com>
S: Maintained
F: drivers/video/fbdev/efifb.c
-EFI TEST DRIVER
-L: linux-efi@vger.kernel.org
-M: Ivan Hu <ivan.hu@canonical.com>
-M: Matt Fleming <matt@codeblueprint.co.uk>
-S: Maintained
-F: drivers/firmware/efi/test/
-
EFS FILESYSTEM
W: http://aeschi.ch.eu.org/efs/
S: Orphan
@@ -4978,6 +5096,34 @@ M: David Woodhouse <dwmw2@infradead.org>
L: linux-embedded@vger.kernel.org
S: Maintained
+Emulex 10Gbps iSCSI - OneConnect DRIVER
+M: Subbu Seetharaman <subbu.seetharaman@broadcom.com>
+M: Ketan Mukadam <ketan.mukadam@broadcom.com>
+M: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
+L: linux-scsi@vger.kernel.org
+W: http://www.broadcom.com
+S: Supported
+F: drivers/scsi/be2iscsi/
+
+Emulex 10Gbps NIC BE2, BE3-R, Lancer, Skyhawk-R DRIVER (be2net)
+M: Sathya Perla <sathya.perla@broadcom.com>
+M: Ajit Khaparde <ajit.khaparde@broadcom.com>
+M: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
+M: Somnath Kotur <somnath.kotur@broadcom.com>
+L: netdev@vger.kernel.org
+W: http://www.emulex.com
+S: Supported
+F: drivers/net/ethernet/emulex/benet/
+
+EMULEX ONECONNECT ROCE DRIVER
+M: Selvin Xavier <selvin.xavier@broadcom.com>
+M: Devesh Sharma <devesh.sharma@broadcom.com>
+L: linux-rdma@vger.kernel.org
+W: http://www.broadcom.com
+S: Odd Fixes
+F: drivers/infiniband/hw/ocrdma/
+F: include/uapi/rdma/ocrdma-abi.h
+
EMULEX/BROADCOM LPFC FC/FCOE SCSI DRIVER
M: James Smart <james.smart@broadcom.com>
M: Dick Kennedy <dick.kennedy@broadcom.com>
@@ -5005,6 +5151,12 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/kristoffer/linux-hpc.git
F: drivers/video/fbdev/s1d13xxxfb.c
F: include/video/s1d13xxxfb.h
+ERRSEQ ERROR TRACKING INFRASTRUCTURE
+M: Jeff Layton <jlayton@poochiereds.net>
+S: Maintained
+F: lib/errseq.c
+F: include/linux/errseq.h
+
ET131X NETWORK DRIVER
M: Mark Einon <mark.einon@gmail.com>
S: Odd Fixes
@@ -5024,12 +5176,21 @@ M: Andrew Lunn <andrew@lunn.ch>
M: Florian Fainelli <f.fainelli@gmail.com>
L: netdev@vger.kernel.org
S: Maintained
-F: include/linux/phy.h
-F: include/linux/phy_fixed.h
-F: drivers/net/phy/
+F: Documentation/ABI/testing/sysfs-bus-mdio
+F: Documentation/devicetree/bindings/net/mdio*
F: Documentation/networking/phy.txt
+F: drivers/net/phy/
F: drivers/of/of_mdio.c
F: drivers/of/of_net.c
+F: include/linux/*mdio*.h
+F: include/linux/of_net.h
+F: include/linux/phy.h
+F: include/linux/phy_fixed.h
+F: include/linux/platform_data/mdio-gpio.h
+F: include/linux/platform_data/mdio-bcm-unimac.h
+F: include/trace/events/mdio.h
+F: include/uapi/linux/mdio.h
+F: include/uapi/linux/mii.h
EXT2 FILE SYSTEM
M: Jan Kara <jack@suse.com>
@@ -5057,6 +5218,22 @@ L: linux-security-module@vger.kernel.org
S: Supported
F: security/integrity/evm/
+EXTENSIBLE FIRMWARE INTERFACE (EFI)
+M: Matt Fleming <matt@codeblueprint.co.uk>
+M: Ard Biesheuvel <ard.biesheuvel@linaro.org>
+L: linux-efi@vger.kernel.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git
+S: Maintained
+F: Documentation/efi-stub.txt
+F: arch/*/kernel/efi.c
+F: arch/x86/boot/compressed/eboot.[ch]
+F: arch/*/include/asm/efi.h
+F: arch/x86/platform/efi/
+F: drivers/firmware/efi/
+F: include/linux/efi*.h
+F: arch/arm/boot/compressed/efi-header.S
+F: arch/arm64/kernel/efi-entry.S
+
EXTERNAL CONNECTOR SUBSYSTEM (EXTCON)
M: MyungJoo Ham <myungjoo.ham@samsung.com>
M: Chanwoo Choi <cw00.choi@samsung.com>
@@ -5082,11 +5259,25 @@ S: Maintained
F: drivers/iommu/exynos-iommu.c
EZchip NPS platform support
-M: Noam Camus <noamc@ezchip.com>
+M: Elad Kanfi <eladkan@mellanox.com>
+M: Vineet Gupta <vgupta@synopsys.com>
S: Supported
F: arch/arc/plat-eznps
F: arch/arc/boot/dts/eznps.dts
+F2FS FILE SYSTEM
+M: Jaegeuk Kim <jaegeuk@kernel.org>
+M: Chao Yu <yuchao0@huawei.com>
+L: linux-f2fs-devel@lists.sourceforge.net
+W: https://f2fs.wiki.kernel.org/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git
+S: Maintained
+F: Documentation/filesystems/f2fs.txt
+F: Documentation/ABI/testing/sysfs-fs-f2fs
+F: fs/f2fs/
+F: include/linux/f2fs_fs.h
+F: include/trace/events/f2fs.h
+
F71805F HARDWARE MONITORING DRIVER
M: Jean Delvare <jdelvare@suse.com>
L: linux-hwmon@vger.kernel.org
@@ -5094,25 +5285,10 @@ S: Maintained
F: Documentation/hwmon/f71805f
F: drivers/hwmon/f71805f.c
-FC0011 TUNER DRIVER
-M: Michael Buesch <m@bues.ch>
-L: linux-media@vger.kernel.org
-S: Maintained
-F: drivers/media/tuners/fc0011.h
-F: drivers/media/tuners/fc0011.c
-
-FC2580 MEDIA DRIVER
-M: Antti Palosaari <crope@iki.fi>
-L: linux-media@vger.kernel.org
-W: https://linuxtv.org
-W: http://palosaari.fi/linux/
-Q: http://patchwork.linuxtv.org/project/linux-media/list/
-T: git git://linuxtv.org/anttip/media_tree.git
-S: Maintained
-F: drivers/media/tuners/fc2580*
-
FANOTIFY
-M: Eric Paris <eparis@redhat.com>
+M: Jan Kara <jack@suse.cz>
+R: Amir Goldstein <amir73il@gmail.com>
+L: linux-fsdevel@vger.kernel.org
S: Maintained
F: fs/notify/fanotify/
F: include/linux/fanotify.h
@@ -5135,6 +5311,23 @@ M: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
S: Maintained
F: drivers/staging/fbtft/
+FC0011 TUNER DRIVER
+M: Michael Buesch <m@bues.ch>
+L: linux-media@vger.kernel.org
+S: Maintained
+F: drivers/media/tuners/fc0011.h
+F: drivers/media/tuners/fc0011.c
+
+FC2580 MEDIA DRIVER
+M: Antti Palosaari <crope@iki.fi>
+L: linux-media@vger.kernel.org
+W: https://linuxtv.org
+W: http://palosaari.fi/linux/
+Q: http://patchwork.linuxtv.org/project/linux-media/list/
+T: git git://linuxtv.org/anttip/media_tree.git
+S: Maintained
+F: drivers/media/tuners/fc2580*
+
FCOE SUBSYSTEM (libfc, libfcoe, fcoe)
M: Johannes Thumshirn <jth@kernel.org>
L: fcoe-devel@open-fcoe.org
@@ -5153,9 +5346,7 @@ M: "J. Bruce Fields" <bfields@fieldses.org>
L: linux-fsdevel@vger.kernel.org
S: Maintained
F: include/linux/fcntl.h
-F: include/linux/fs.h
F: include/uapi/linux/fcntl.h
-F: include/uapi/linux/fs.h
F: fs/fcntl.c
F: fs/locks.c
@@ -5164,6 +5355,8 @@ M: Alexander Viro <viro@zeniv.linux.org.uk>
L: linux-fsdevel@vger.kernel.org
S: Maintained
F: fs/*
+F: include/linux/fs.h
+F: include/uapi/linux/fs.h
FINTEK F75375S HARDWARE MONITOR AND FAN CONTROLLER DRIVER
M: Riku Voipio <riku.voipio@iki.fi>
@@ -5238,10 +5431,11 @@ K: fmc_d.*register
FPGA MANAGER FRAMEWORK
M: Alan Tull <atull@kernel.org>
-R: Moritz Fischer <moritz.fischer@ettus.com>
+R: Moritz Fischer <mdf@kernel.org>
L: linux-fpga@vger.kernel.org
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/atull/linux-fpga.git
+Q: http://patchwork.kernel.org/project/linux-fpga/list/
F: Documentation/fpga/
F: Documentation/devicetree/bindings/fpga/
F: drivers/fpga/
@@ -5288,12 +5482,20 @@ S: Maintained
F: drivers/video/fbdev/fsl-diu-fb.*
FREESCALE DMA DRIVER
-M: Li Yang <leoli@freescale.com>
+M: Li Yang <leoyang.li@nxp.com>
M: Zhang Wei <zw@zh-kernel.org>
L: linuxppc-dev@lists.ozlabs.org
S: Maintained
F: drivers/dma/fsldma.*
+FREESCALE eTSEC ETHERNET DRIVER (GIANFAR)
+M: Claudiu Manoil <claudiu.manoil@freescale.com>
+L: netdev@vger.kernel.org
+S: Maintained
+F: drivers/net/ethernet/freescale/gianfar*
+X: drivers/net/ethernet/freescale/gianfar_ptp.c
+F: Documentation/devicetree/bindings/net/fsl-tsec-phy.txt
+
FREESCALE GPMI NAND DRIVER
M: Han Xu <han.xu@nxp.com>
L: linux-mtd@lists.infradead.org
@@ -5307,6 +5509,15 @@ L: linux-i2c@vger.kernel.org
S: Maintained
F: drivers/i2c/busses/i2c-cpm.c
+FREESCALE IMX / MXC FEC DRIVER
+M: Fugang Duan <fugang.duan@nxp.com>
+L: netdev@vger.kernel.org
+S: Maintained
+F: drivers/net/ethernet/freescale/fec_main.c
+F: drivers/net/ethernet/freescale/fec_ptp.c
+F: drivers/net/ethernet/freescale/fec.h
+F: Documentation/devicetree/bindings/net/fsl-fec.txt
+
FREESCALE IMX / MXC FRAMEBUFFER DRIVER
M: Sascha Hauer <kernel@pengutronix.de>
L: linux-fbdev@vger.kernel.org
@@ -5315,29 +5526,11 @@ S: Maintained
F: include/linux/platform_data/video-imxfb.h
F: drivers/video/fbdev/imxfb.c
-FREESCALE QUAD SPI DRIVER
-M: Han Xu <han.xu@nxp.com>
-L: linux-mtd@lists.infradead.org
-S: Maintained
-F: drivers/mtd/spi-nor/fsl-quadspi.c
-
-FREESCALE SOC FS_ENET DRIVER
-M: Pantelis Antoniou <pantelis.antoniou@gmail.com>
-M: Vitaly Bordug <vbordug@ru.mvista.com>
-L: linuxppc-dev@lists.ozlabs.org
-L: netdev@vger.kernel.org
-S: Maintained
-F: drivers/net/ethernet/freescale/fs_enet/
-F: include/linux/fs_enet_pd.h
-
-FREESCALE IMX / MXC FEC DRIVER
-M: Fugang Duan <fugang.duan@nxp.com>
+FREESCALE QORIQ DPAA ETHERNET DRIVER
+M: Madalin Bucur <madalin.bucur@nxp.com>
L: netdev@vger.kernel.org
S: Maintained
-F: drivers/net/ethernet/freescale/fec_main.c
-F: drivers/net/ethernet/freescale/fec_ptp.c
-F: drivers/net/ethernet/freescale/fec.h
-F: Documentation/devicetree/bindings/net/fsl-fec.txt
+F: drivers/net/ethernet/freescale/dpaa
FREESCALE QORIQ DPAA FMAN DRIVER
M: Madalin Bucur <madalin.bucur@nxp.com>
@@ -5346,20 +5539,11 @@ S: Maintained
F: drivers/net/ethernet/freescale/fman
F: Documentation/devicetree/bindings/powerpc/fsl/fman.txt
-FREESCALE QORIQ DPAA ETHERNET DRIVER
-M: Madalin Bucur <madalin.bucur@nxp.com>
-L: netdev@vger.kernel.org
-S: Maintained
-F: drivers/net/ethernet/freescale/dpaa
-
-FREESCALE SOC DRIVERS
-M: Scott Wood <oss@buserror.net>
-L: linuxppc-dev@lists.ozlabs.org
-L: linux-arm-kernel@lists.infradead.org
+FREESCALE QUAD SPI DRIVER
+M: Han Xu <han.xu@nxp.com>
+L: linux-mtd@lists.infradead.org
S: Maintained
-F: Documentation/devicetree/bindings/powerpc/fsl/
-F: drivers/soc/fsl/
-F: include/linux/fsl/
+F: drivers/mtd/spi-nor/fsl-quadspi.c
FREESCALE QUICC ENGINE LIBRARY
M: Qiang Zhao <qiang.zhao@nxp.com>
@@ -5369,28 +5553,13 @@ F: drivers/soc/fsl/qe/
F: include/soc/fsl/*qe*.h
F: include/soc/fsl/*ucc*.h
-FREESCALE USB PERIPHERAL DRIVERS
-M: Li Yang <leoli@freescale.com>
-L: linux-usb@vger.kernel.org
-L: linuxppc-dev@lists.ozlabs.org
-S: Maintained
-F: drivers/usb/gadget/udc/fsl*
-
FREESCALE QUICC ENGINE UCC ETHERNET DRIVER
-M: Li Yang <leoli@freescale.com>
+M: Li Yang <leoyang.li@nxp.com>
L: netdev@vger.kernel.org
L: linuxppc-dev@lists.ozlabs.org
S: Maintained
F: drivers/net/ethernet/freescale/ucc_geth*
-FREESCALE eTSEC ETHERNET DRIVER (GIANFAR)
-M: Claudiu Manoil <claudiu.manoil@freescale.com>
-L: netdev@vger.kernel.org
-S: Maintained
-F: drivers/net/ethernet/freescale/gianfar*
-X: drivers/net/ethernet/freescale/gianfar_ptp.c
-F: Documentation/devicetree/bindings/net/fsl-tsec-phy.txt
-
FREESCALE QUICC ENGINE UCC HDLC DRIVER
M: Zhao Qiang <qiang.zhao@nxp.com>
L: netdev@vger.kernel.org
@@ -5404,6 +5573,24 @@ L: linuxppc-dev@lists.ozlabs.org
S: Maintained
F: drivers/tty/serial/ucc_uart.c
+FREESCALE SOC DRIVERS
+M: Li Yang <leoyang.li@nxp.com>
+L: linuxppc-dev@lists.ozlabs.org
+L: linux-arm-kernel@lists.infradead.org
+S: Maintained
+F: Documentation/devicetree/bindings/soc/fsl/
+F: drivers/soc/fsl/
+F: include/linux/fsl/
+
+FREESCALE SOC FS_ENET DRIVER
+M: Pantelis Antoniou <pantelis.antoniou@gmail.com>
+M: Vitaly Bordug <vbordug@ru.mvista.com>
+L: linuxppc-dev@lists.ozlabs.org
+L: netdev@vger.kernel.org
+S: Maintained
+F: drivers/net/ethernet/freescale/fs_enet/
+F: include/linux/fs_enet_pd.h
+
FREESCALE SOC SOUND DRIVERS
M: Timur Tabi <timur@tabi.org>
M: Nicolin Chen <nicoleotsuka@gmail.com>
@@ -5416,6 +5603,13 @@ F: sound/soc/fsl/fsl*
F: sound/soc/fsl/imx*
F: sound/soc/fsl/mpc8610_hpcd.c
+FREESCALE USB PERIPHERAL DRIVERS
+M: Li Yang <leoyang.li@nxp.com>
+L: linux-usb@vger.kernel.org
+L: linuxppc-dev@lists.ozlabs.org
+S: Maintained
+F: drivers/usb/gadget/udc/fsl*
+
FREEVXFS FILESYSTEM
M: Christoph Hellwig <hch@infradead.org>
W: ftp://ftp.openlinux.org/pub/people/hch/vxfs
@@ -5456,19 +5650,6 @@ S: Supported
F: fs/crypto/
F: include/linux/fscrypt*.h
-F2FS FILE SYSTEM
-M: Jaegeuk Kim <jaegeuk@kernel.org>
-M: Chao Yu <yuchao0@huawei.com>
-L: linux-f2fs-devel@lists.sourceforge.net
-W: https://f2fs.wiki.kernel.org/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git
-S: Maintained
-F: Documentation/filesystems/f2fs.txt
-F: Documentation/ABI/testing/sysfs-fs-f2fs
-F: fs/f2fs/
-F: include/linux/f2fs_fs.h
-F: include/trace/events/f2fs.h
-
FUJITSU FR-V (FRV) PORT
S: Orphan
F: arch/frv/
@@ -5542,6 +5723,12 @@ S: Maintained
F: kernel/gcov/
F: Documentation/dev-tools/gcov.rst
+GDB KERNEL DEBUGGING HELPER SCRIPTS
+M: Jan Kiszka <jan.kiszka@siemens.com>
+M: Kieran Bingham <kieran@bingham.xyz>
+S: Supported
+F: scripts/gdb/
+
GDT SCSI DISK ARRAY CONTROLLER DRIVER
M: Achim Leubner <achim_leubner@adaptec.com>
L: linux-scsi@vger.kernel.org
@@ -5549,12 +5736,6 @@ W: http://www.icp-vortex.com/
S: Supported
F: drivers/scsi/gdt*
-GDB KERNEL DEBUGGING HELPER SCRIPTS
-M: Jan Kiszka <jan.kiszka@siemens.com>
-M: Kieran Bingham <kieran@bingham.xyz>
-S: Supported
-F: scripts/gdb/
-
GEMTEK FM RADIO RECEIVER DRIVER
M: Hans Verkuil <hverkuil@xs4all.nl>
L: linux-media@vger.kernel.org
@@ -5621,17 +5802,17 @@ L: kvm@vger.kernel.org
S: Supported
F: drivers/uio/uio_pci_generic.c
-GET_MAINTAINER SCRIPT
-M: Joe Perches <joe@perches.com>
-S: Maintained
-F: scripts/get_maintainer.pl
-
GENWQE (IBM Generic Workqueue Card)
M: Frank Haverkamp <haver@linux.vnet.ibm.com>
M: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
S: Supported
F: drivers/misc/genwqe/
+GET_MAINTAINER SCRIPT
+M: Joe Perches <joe@perches.com>
+S: Maintained
+F: scripts/get_maintainer.pl
+
GFS2 FILE SYSTEM
M: Steven Whitehouse <swhiteho@redhat.com>
M: Bob Peterson <rpeterso@redhat.com>
@@ -5664,6 +5845,21 @@ L: linux-input@vger.kernel.org
S: Maintained
F: drivers/input/touchscreen/goodix.c
+GPIO ACPI SUPPORT
+M: Mika Westerberg <mika.westerberg@linux.intel.com>
+M: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+L: linux-gpio@vger.kernel.org
+L: linux-acpi@vger.kernel.org
+S: Maintained
+F: Documentation/acpi/gpio-properties.txt
+F: drivers/gpio/gpiolib-acpi.c
+
+GPIO IR Transmitter
+M: Sean Young <sean@mess.org>
+L: linux-media@vger.kernel.org
+S: Maintained
+F: drivers/media/rc/gpio-ir-tx.c
+
GPIO MOCKUP DRIVER
M: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
L: linux-gpio@vger.kernel.org
@@ -5701,14 +5897,6 @@ L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/ethernet/aeroflex/
-GREYBUS SUBSYSTEM
-M: Johan Hovold <johan@kernel.org>
-M: Alex Elder <elder@kernel.org>
-M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-S: Maintained
-F: drivers/staging/greybus/
-L: greybus-dev@lists.linaro.org (moderated for non-subscribers)
-
GREYBUS AUDIO PROTOCOLS DRIVERS
M: Vaibhav Agarwal <vaibhav.sr@gmail.com>
M: Mark Greer <mgreer@animalcreek.com>
@@ -5726,24 +5914,7 @@ F: drivers/staging/greybus/audio_manager_sysfs.c
F: drivers/staging/greybus/audio_module.c
F: drivers/staging/greybus/audio_topology.c
-GREYBUS PROTOCOLS DRIVERS
-M: Rui Miguel Silva <rmfrfs@gmail.com>
-S: Maintained
-F: drivers/staging/greybus/sdio.c
-F: drivers/staging/greybus/light.c
-F: drivers/staging/greybus/gpio.c
-F: drivers/staging/greybus/power_supply.c
-F: drivers/staging/greybus/spi.c
-F: drivers/staging/greybus/spilib.c
-
-GREYBUS PROTOCOLS DRIVERS
-M: Bryan O'Donoghue <pure.logic@nexus-software.ie>
-S: Maintained
-F: drivers/staging/greybus/loopback.c
-F: drivers/staging/greybus/timesync.c
-F: drivers/staging/greybus/timesync_platform.c
-
-GREYBUS PROTOCOLS DRIVERS
+GREYBUS FW/HID/SPI PROTOCOLS DRIVERS
M: Viresh Kumar <vireshk@kernel.org>
S: Maintained
F: drivers/staging/greybus/authentication.c
@@ -5760,11 +5931,12 @@ F: drivers/staging/greybus/spi.c
F: drivers/staging/greybus/spilib.c
F: drivers/staging/greybus/spilib.h
-GREYBUS PROTOCOLS DRIVERS
-M: David Lin <dtwlin@gmail.com>
+GREYBUS LOOPBACK/TIME PROTOCOLS DRIVERS
+M: Bryan O'Donoghue <pure.logic@nexus-software.ie>
S: Maintained
-F: drivers/staging/greybus/uart.c
-F: drivers/staging/greybus/log.c
+F: drivers/staging/greybus/loopback.c
+F: drivers/staging/greybus/timesync.c
+F: drivers/staging/greybus/timesync_platform.c
GREYBUS PLATFORM DRIVERS
M: Vaibhav Hiremath <hvaibhav.linux@gmail.com>
@@ -5773,6 +5945,30 @@ F: drivers/staging/greybus/arche-platform.c
F: drivers/staging/greybus/arche-apb-ctrl.c
F: drivers/staging/greybus/arche_platform.h
+GREYBUS SDIO/GPIO/SPI PROTOCOLS DRIVERS
+M: Rui Miguel Silva <rmfrfs@gmail.com>
+S: Maintained
+F: drivers/staging/greybus/sdio.c
+F: drivers/staging/greybus/light.c
+F: drivers/staging/greybus/gpio.c
+F: drivers/staging/greybus/power_supply.c
+F: drivers/staging/greybus/spi.c
+F: drivers/staging/greybus/spilib.c
+
+GREYBUS SUBSYSTEM
+M: Johan Hovold <johan@kernel.org>
+M: Alex Elder <elder@kernel.org>
+M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+S: Maintained
+F: drivers/staging/greybus/
+L: greybus-dev@lists.linaro.org (moderated for non-subscribers)
+
+GREYBUS UART PROTOCOLS DRIVERS
+M: David Lin <dtwlin@gmail.com>
+S: Maintained
+F: drivers/staging/greybus/uart.c
+F: drivers/staging/greybus/log.c
+
GS1662 VIDEO SERIALIZER
M: Charles-Antoine Couret <charles-antoine.couret@nexvision.fr>
L: linux-media@vger.kernel.org
@@ -5843,13 +6039,6 @@ L: linux-efi@vger.kernel.org
S: Maintained
F: block/partitions/efi.*
-STK1160 USB VIDEO CAPTURE DRIVER
-M: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
-L: linux-media@vger.kernel.org
-T: git git://linuxtv.org/media_tree.git
-S: Maintained
-F: drivers/media/usb/stk1160/
-
H8/300 ARCHITECTURE
M: Yoshinori Sato <ysato@users.sourceforge.jp>
L: uclinux-h8-devel@lists.sourceforge.jp (moderated for non-subscribers)
@@ -5861,33 +6050,6 @@ F: drivers/clocksource/h8300_*.c
F: drivers/clk/h8300/
F: drivers/irqchip/irq-renesas-h8*.c
-HARD DRIVE ACTIVE PROTECTION SYSTEM (HDAPS) DRIVER
-M: Frank Seidel <frank@f-seidel.de>
-L: platform-driver-x86@vger.kernel.org
-W: http://www.kernel.org/pub/linux/kernel/people/fseidel/hdaps/
-S: Maintained
-F: drivers/platform/x86/hdaps.c
-
-HDPVR USB VIDEO ENCODER DRIVER
-M: Hans Verkuil <hverkuil@xs4all.nl>
-L: linux-media@vger.kernel.org
-T: git git://linuxtv.org/media_tree.git
-W: https://linuxtv.org
-S: Odd Fixes
-F: drivers/media/usb/hdpvr/
-
-HWPOISON MEMORY FAILURE HANDLING
-M: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
-L: linux-mm@kvack.org
-S: Maintained
-F: mm/memory-failure.c
-F: mm/hwpoison-inject.c
-
-HYPERVISOR VIRTUAL CONSOLE DRIVER
-L: linuxppc-dev@lists.ozlabs.org
-S: Odd Fixes
-F: drivers/tty/hvc/
-
HACKRF MEDIA DRIVER
M: Antti Palosaari <crope@iki.fi>
L: linux-media@vger.kernel.org
@@ -5898,6 +6060,13 @@ T: git git://linuxtv.org/anttip/media_tree.git
S: Maintained
F: drivers/media/usb/hackrf/
+HARD DRIVE ACTIVE PROTECTION SYSTEM (HDAPS) DRIVER
+M: Frank Seidel <frank@f-seidel.de>
+L: platform-driver-x86@vger.kernel.org
+W: http://www.kernel.org/pub/linux/kernel/people/fseidel/hdaps/
+S: Maintained
+F: drivers/platform/x86/hdaps.c
+
HARDWARE MONITORING
M: Jean Delvare <jdelvare@suse.com>
M: Guenter Roeck <linux@roeck-us.net>
@@ -5936,6 +6105,14 @@ L: linux-parisc@vger.kernel.org
S: Maintained
F: sound/parisc/harmony.*
+HDPVR USB VIDEO ENCODER DRIVER
+M: Hans Verkuil <hverkuil@xs4all.nl>
+L: linux-media@vger.kernel.org
+T: git git://linuxtv.org/media_tree.git
+W: https://linuxtv.org
+S: Odd Fixes
+F: drivers/media/usb/hdpvr/
+
HEWLETT PACKARD ENTERPRISE ILO NMI WATCHDOG DRIVER
M: Jimmy Vance <jimmy.vance@hpe.com>
S: Supported
@@ -5952,23 +6129,6 @@ F: drivers/scsi/hpsa*.[ch]
F: include/linux/cciss*.h
F: include/uapi/linux/cciss*.h
-HEWLETT-PACKARD SMART CISS RAID DRIVER (cciss)
-M: Don Brace <don.brace@microsemi.com>
-L: esc.storagedev@microsemi.com
-L: linux-scsi@vger.kernel.org
-S: Supported
-F: Documentation/blockdev/cciss.txt
-F: drivers/block/cciss*
-F: include/linux/cciss_ioctl.h
-F: include/uapi/linux/cciss_ioctl.h
-
-OPA-VNIC DRIVER
-M: Dennis Dalessandro <dennis.dalessandro@intel.com>
-M: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
-L: linux-rdma@vger.kernel.org
-S: Supported
-F: drivers/infiniband/ulp/opa_vnic
-
HFI1 DRIVER
M: Mike Marciniszyn <mike.marciniszyn@intel.com>
M: Dennis Dalessandro <dennis.dalessandro@intel.com>
@@ -6031,7 +6191,7 @@ F: drivers/hid/hid-sensor-*
F: drivers/iio/*/hid-*
F: include/linux/hid-sensor-*
-HIGH-RESOLUTION TIMERS, CLOCKEVENTS, DYNTICKS
+HIGH-RESOLUTION TIMERS, CLOCKEVENTS
M: Thomas Gleixner <tglx@linutronix.de>
L: linux-kernel@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core
@@ -6039,7 +6199,6 @@ S: Maintained
F: Documentation/timers/
F: kernel/time/hrtimer.c
F: kernel/time/clockevents.c
-F: kernel/time/tick*.*
F: kernel/time/timer_*.c
F: include/linux/clockchips.h
F: include/linux/hrtimer.h
@@ -6066,6 +6225,14 @@ F: include/uapi/linux/if_hippi.h
F: net/802/hippi.c
F: drivers/net/hippi/
+HISILICON NETWORK SUBSYSTEM 3 DRIVER (HNS3)
+M: Yisen Zhuang <yisen.zhuang@huawei.com>
+M: Salil Mehta <salil.mehta@huawei.com>
+L: netdev@vger.kernel.org
+W: http://www.hisilicon.com
+S: Maintained
+F: drivers/net/ethernet/hisilicon/hns3/
+
HISILICON NETWORK SUBSYSTEM DRIVER
M: Yisen Zhuang <yisen.zhuang@huawei.com>
M: Salil Mehta <salil.mehta@huawei.com>
@@ -6090,6 +6257,13 @@ S: Supported
F: drivers/scsi/hisi_sas/
F: Documentation/devicetree/bindings/scsi/hisilicon-sas.txt
+HMM - Heterogeneous Memory Management
+M: Jérôme Glisse <jglisse@redhat.com>
+L: linux-mm@kvack.org
+S: Maintained
+F: mm/hmm*
+F: include/linux/hmm*
+
HOST AP DRIVER
M: Jouni Malinen <j@w1.fi>
L: linux-wireless@vger.kernel.org
@@ -6147,12 +6321,25 @@ L: netdev@vger.kernel.org
S: Maintained
F: net/hsr/
+HT16K33 LED CONTROLLER DRIVER
+M: Robin van der Gracht <robin@protonic.nl>
+S: Maintained
+F: drivers/auxdisplay/ht16k33.c
+F: Documentation/devicetree/bindings/display/ht16k33.txt
+
HTCPEN TOUCHSCREEN DRIVER
M: Pau Oliva Fora <pof@eslack.org>
L: linux-input@vger.kernel.org
S: Maintained
F: drivers/input/touchscreen/htcpen.c
+HUAWEI ETHERNET DRIVER
+M: Aviad Krawczyk <aviad.krawczyk@huawei.com>
+L: netdev@vger.kernel.org
+S: Supported
+F: Documentation/networking/hinic.txt
+F: drivers/net/ethernet/huawei/hinic/
+
HUGETLB FILESYSTEM
M: Nadia Yvette Chambers <nyc@holomorphy.com>
S: Maintained
@@ -6166,13 +6353,22 @@ W: https://linuxtv.org
S: Supported
F: drivers/media/platform/sti/hva
+HWPOISON MEMORY FAILURE HANDLING
+M: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
+L: linux-mm@kvack.org
+S: Maintained
+F: mm/memory-failure.c
+F: mm/hwpoison-inject.c
+
Hyper-V CORE AND DRIVERS
M: "K. Y. Srinivasan" <kys@microsoft.com>
M: Haiyang Zhang <haiyangz@microsoft.com>
M: Stephen Hemminger <sthemmin@microsoft.com>
L: devel@linuxdriverproject.org
S: Maintained
+F: Documentation/networking/netvsc.txt
F: arch/x86/include/asm/mshyperv.h
+F: arch/x86/include/asm/trace/hyperv.h
F: arch/x86/include/uapi/asm/hyperv.h
F: arch/x86/kernel/cpu/mshyperv.c
F: arch/x86/hyperv
@@ -6184,10 +6380,24 @@ F: drivers/net/hyperv/
F: drivers/scsi/storvsc_drv.c
F: drivers/uio/uio_hv_generic.c
F: drivers/video/fbdev/hyperv_fb.c
+F: net/vmw_vsock/hyperv_transport.c
F: include/linux/hyperv.h
+F: include/uapi/linux/hyperv.h
F: tools/hv/
F: Documentation/ABI/stable/sysfs-bus-vmbus
+HYPERVISOR VIRTUAL CONSOLE DRIVER
+L: linuxppc-dev@lists.ozlabs.org
+S: Odd Fixes
+F: drivers/tty/hvc/
+
+I2C ACPI SUPPORT
+M: Mika Westerberg <mika.westerberg@linux.intel.com>
+L: linux-i2c@vger.kernel.org
+L: linux-acpi@vger.kernel.org
+S: Maintained
+F: drivers/i2c/i2c-core-acpi.c
+
I2C MUXES
M: Peter Rosin <peda@axentia.se>
L: linux-i2c@vger.kernel.org
@@ -6210,6 +6420,36 @@ F: Documentation/i2c/busses/i2c-parport-light
F: drivers/i2c/busses/i2c-parport.c
F: drivers/i2c/busses/i2c-parport-light.c
+I2C SUBSYSTEM
+M: Wolfram Sang <wsa@the-dreams.de>
+L: linux-i2c@vger.kernel.org
+W: https://i2c.wiki.kernel.org/
+Q: https://patchwork.ozlabs.org/project/linux-i2c/list/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git
+S: Maintained
+F: Documentation/devicetree/bindings/i2c/
+F: Documentation/i2c/
+F: drivers/i2c/
+F: drivers/i2c/*/
+F: include/linux/i2c.h
+F: include/linux/i2c-*.h
+F: include/uapi/linux/i2c.h
+F: include/uapi/linux/i2c-*.h
+
+I2C-TAOS-EVM DRIVER
+M: Jean Delvare <jdelvare@suse.com>
+L: linux-i2c@vger.kernel.org
+S: Maintained
+F: Documentation/i2c/busses/i2c-taos-evm
+F: drivers/i2c/busses/i2c-taos-evm.c
+
+I2C-TINY-USB DRIVER
+M: Till Harbaum <till@harbaum.org>
+L: linux-i2c@vger.kernel.org
+W: http://www.harbaum.org/till/i2c_tiny_usb
+S: Maintained
+F: drivers/i2c/busses/i2c-tiny-usb.c
+
I2C/SMBUS CONTROLLER DRIVERS FOR PC
M: Jean Delvare <jdelvare@suse.com>
L: linux-i2c@vger.kernel.org
@@ -6244,6 +6484,12 @@ F: drivers/i2c/busses/i2c-sis96x.c
F: drivers/i2c/busses/i2c-via.c
F: drivers/i2c/busses/i2c-viapro.c
+I2C/SMBUS INTEL CHT WHISKEY COVE PMIC DRIVER
+M: Hans de Goede <hdegoede@redhat.com>
+L: linux-i2c@vger.kernel.org
+S: Maintained
+F: drivers/i2c/busses/i2c-cht-wc.c
+
I2C/SMBUS ISMT DRIVER
M: Seth Heasley <seth.heasley@intel.com>
M: Neil Horman <nhorman@tuxdriver.com>
@@ -6257,42 +6503,6 @@ L: linux-i2c@vger.kernel.org
S: Maintained
F: drivers/i2c/i2c-stub.c
-I2C SUBSYSTEM
-M: Wolfram Sang <wsa@the-dreams.de>
-L: linux-i2c@vger.kernel.org
-W: https://i2c.wiki.kernel.org/
-Q: https://patchwork.ozlabs.org/project/linux-i2c/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git
-S: Maintained
-F: Documentation/devicetree/bindings/i2c/
-F: Documentation/i2c/
-F: drivers/i2c/
-F: drivers/i2c/*/
-F: include/linux/i2c.h
-F: include/linux/i2c-*.h
-F: include/uapi/linux/i2c.h
-F: include/uapi/linux/i2c-*.h
-
-I2C ACPI SUPPORT
-M: Mika Westerberg <mika.westerberg@linux.intel.com>
-L: linux-i2c@vger.kernel.org
-L: linux-acpi@vger.kernel.org
-S: Maintained
-
-I2C-TAOS-EVM DRIVER
-M: Jean Delvare <jdelvare@suse.com>
-L: linux-i2c@vger.kernel.org
-S: Maintained
-F: Documentation/i2c/busses/i2c-taos-evm
-F: drivers/i2c/busses/i2c-taos-evm.c
-
-I2C-TINY-USB DRIVER
-M: Till Harbaum <till@harbaum.org>
-L: linux-i2c@vger.kernel.org
-W: http://www.harbaum.org/till/i2c_tiny_usb
-S: Maintained
-F: drivers/i2c/busses/i2c-tiny-usb.c
-
i386 BOOT CODE
M: "H. Peter Anvin" <hpa@zytor.com>
S: Maintained
@@ -6311,17 +6521,15 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux.git
S: Maintained
F: arch/ia64/
-IBM Power VMX Cryptographic instructions
-M: Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com>
-M: Paulo Flabiano Smorigo <pfsmorigo@linux.vnet.ibm.com>
-L: linux-crypto@vger.kernel.org
+IBM Power 842 compression accelerator
+M: Haren Myneni <haren@us.ibm.com>
S: Supported
-F: drivers/crypto/vmx/Makefile
-F: drivers/crypto/vmx/Kconfig
-F: drivers/crypto/vmx/vmx.c
-F: drivers/crypto/vmx/aes*
-F: drivers/crypto/vmx/ghash*
-F: drivers/crypto/vmx/ppc-xlate.pl
+F: drivers/crypto/nx/Makefile
+F: drivers/crypto/nx/Kconfig
+F: drivers/crypto/nx/nx-842*
+F: include/linux/sw842.h
+F: crypto/842.c
+F: lib/842/
IBM Power in-Nest Crypto Acceleration
M: Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com>
@@ -6336,33 +6544,38 @@ F: drivers/crypto/nx/nx.*
F: drivers/crypto/nx/nx_csbcpb.h
F: drivers/crypto/nx/nx_debugfs.h
-IBM Power 842 compression accelerator
-M: Haren Myneni <haren@us.ibm.com>
-S: Supported
-F: drivers/crypto/nx/Makefile
-F: drivers/crypto/nx/Kconfig
-F: drivers/crypto/nx/nx-842*
-F: include/linux/sw842.h
-F: crypto/842.c
-F: lib/842/
-
IBM Power Linux RAID adapter
M: Brian King <brking@us.ibm.com>
S: Supported
F: drivers/scsi/ipr.*
-IBM Power Virtual Ethernet Device Driver
+IBM Power SRIOV Virtual NIC Device Driver
M: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
+M: John Allen <jallen@linux.vnet.ibm.com>
L: netdev@vger.kernel.org
S: Supported
-F: drivers/net/ethernet/ibm/ibmveth.*
+F: drivers/net/ethernet/ibm/ibmvnic.*
-IBM Power SRIOV Virtual NIC Device Driver
+IBM Power Virtual Accelerator Switchboard
+M: Sukadev Bhattiprolu
+L: linuxppc-dev@lists.ozlabs.org
+S: Supported
+F: arch/powerpc/platforms/powernv/vas*
+F: arch/powerpc/platforms/powernv/copy-paste.h
+F: arch/powerpc/include/asm/vas.h
+F: arch/powerpc/include/uapi/asm/vas.h
+
+IBM Power Virtual Ethernet Device Driver
M: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
-M: John Allen <jallen@linux.vnet.ibm.com>
L: netdev@vger.kernel.org
S: Supported
-F: drivers/net/ethernet/ibm/ibmvnic.*
+F: drivers/net/ethernet/ibm/ibmveth.*
+
+IBM Power Virtual FC Device Drivers
+M: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
+L: linux-scsi@vger.kernel.org
+S: Supported
+F: drivers/scsi/ibmvscsi/ibmvfc*
IBM Power Virtual SCSI Device Drivers
M: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
@@ -6379,11 +6592,17 @@ L: target-devel@vger.kernel.org
S: Supported
F: drivers/scsi/ibmvscsi_tgt/
-IBM Power Virtual FC Device Drivers
-M: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
-L: linux-scsi@vger.kernel.org
+IBM Power VMX Cryptographic instructions
+M: Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com>
+M: Paulo Flabiano Smorigo <pfsmorigo@linux.vnet.ibm.com>
+L: linux-crypto@vger.kernel.org
S: Supported
-F: drivers/scsi/ibmvscsi/ibmvfc*
+F: drivers/crypto/vmx/Makefile
+F: drivers/crypto/vmx/Kconfig
+F: drivers/crypto/vmx/vmx.c
+F: drivers/crypto/vmx/aes*
+F: drivers/crypto/vmx/ghash*
+F: drivers/crypto/vmx/ppc-xlate.pl
IBM ServeRAID RAID DRIVER
S: Orphan
@@ -6395,11 +6614,6 @@ S: Maintained
F: drivers/mfd/lpc_ich.c
F: drivers/gpio/gpio-ich.c
-IDT VersaClock 5 CLOCK DRIVER
-M: Marek Vasut <marek.vasut@gmail.com>
-S: Maintained
-F: drivers/clk/clk-versaclock5.c
-
IDE SUBSYSTEM
M: "David S. Miller" <davem@davemloft.net>
L: linux-ide@vger.kernel.org
@@ -6410,6 +6624,13 @@ F: Documentation/ide/
F: drivers/ide/
F: include/linux/ide.h
+IDE/ATAPI DRIVERS
+M: Borislav Petkov <bp@alien8.de>
+L: linux-ide@vger.kernel.org
+S: Maintained
+F: Documentation/cdrom/ide-cd
+F: drivers/ide/ide-cd*
+
IDEAPAD LAPTOP EXTRAS DRIVER
M: Ike Panhc <ike.pan@canonical.com>
L: platform-driver-x86@vger.kernel.org
@@ -6424,20 +6645,18 @@ W: https://github.com/o2genum/ideapad-slidebar
S: Maintained
F: drivers/input/misc/ideapad_slidebar.c
-IDE/ATAPI DRIVERS
-M: Borislav Petkov <bp@alien8.de>
-L: linux-ide@vger.kernel.org
+IDT VersaClock 5 CLOCK DRIVER
+M: Marek Vasut <marek.vasut@gmail.com>
S: Maintained
-F: Documentation/cdrom/ide-cd
-F: drivers/ide/ide-cd*
+F: drivers/clk/clk-versaclock5.c
IEEE 802.15.4 SUBSYSTEM
-M: Alexander Aring <aar@pengutronix.de>
+M: Alexander Aring <alex.aring@gmail.com>
M: Stefan Schmidt <stefan@osg.samsung.com>
L: linux-wpan@vger.kernel.org
W: http://wpan.cakelab.org/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan-next.git
S: Maintained
F: net/ieee802154/
F: net/mac802154/
@@ -6486,6 +6705,13 @@ F: Documentation/ABI/testing/sysfs-bus-iio-adc-envelope-detector
F: Documentation/devicetree/bindings/iio/adc/envelope-detector.txt
F: drivers/iio/adc/envelope-detector.c
+IIO MULTIPLEXER
+M: Peter Rosin <peda@axentia.se>
+L: linux-iio@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/iio/multiplexer/iio-mux.txt
+F: drivers/iio/multiplexer/iio-mux.c
+
IIO SUBSYSTEM AND DRIVERS
M: Jonathan Cameron <jic23@kernel.org>
R: Hartmut Knaack <knaack.h@gmx.de>
@@ -6512,6 +6738,16 @@ S: Maintained
F: Documentation/devicetree/bindings/auxdisplay/img-ascii-lcd.txt
F: drivers/auxdisplay/img-ascii-lcd.c
+IMGTEC IR DECODER DRIVER
+M: James Hogan <jhogan@kernel.org>
+S: Maintained
+F: drivers/media/rc/img-ir/
+
+IMS TWINTURBO FRAMEBUFFER DRIVER
+L: linux-fbdev@vger.kernel.org
+S: Orphan
+F: drivers/video/fbdev/imsttfb.c
+
INA209 HARDWARE MONITOR DRIVER
M: Guenter Roeck <linux@roeck-us.net>
L: linux-hwmon@vger.kernel.org
@@ -6537,37 +6773,6 @@ W: http://industrypack.sourceforge.net
S: Maintained
F: drivers/ipack/
-INGENIC JZ4780 DMA Driver
-M: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
-S: Maintained
-F: drivers/dma/dma-jz4780.c
-
-INGENIC JZ4780 NAND DRIVER
-M: Harvey Hunt <harveyhuntnexus@gmail.com>
-L: linux-mtd@lists.infradead.org
-S: Maintained
-F: drivers/mtd/nand/jz4780_*
-
-INTEGRITY MEASUREMENT ARCHITECTURE (IMA)
-M: Mimi Zohar <zohar@linux.vnet.ibm.com>
-M: Dmitry Kasatkin <dmitry.kasatkin@gmail.com>
-L: linux-ima-devel@lists.sourceforge.net
-L: linux-ima-user@lists.sourceforge.net
-L: linux-security-module@vger.kernel.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git
-S: Supported
-F: security/integrity/ima/
-
-IMGTEC IR DECODER DRIVER
-M: James Hogan <james.hogan@imgtec.com>
-S: Maintained
-F: drivers/media/rc/img-ir/
-
-IMS TWINTURBO FRAMEBUFFER DRIVER
-L: linux-fbdev@vger.kernel.org
-S: Orphan
-F: drivers/video/fbdev/imsttfb.c
-
INFINIBAND SUBSYSTEM
M: Doug Ledford <dledford@redhat.com>
M: Sean Hefty <sean.hefty@intel.com>
@@ -6584,10 +6789,21 @@ F: include/uapi/linux/if_infiniband.h
F: include/uapi/rdma/
F: include/rdma/
+INGENIC JZ4780 DMA Driver
+M: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
+S: Maintained
+F: drivers/dma/dma-jz4780.c
+
+INGENIC JZ4780 NAND DRIVER
+M: Harvey Hunt <harveyhuntnexus@gmail.com>
+L: linux-mtd@lists.infradead.org
+S: Maintained
+F: drivers/mtd/nand/jz4780_*
+
INOTIFY
-M: John McCutchan <john@johnmccutchan.com>
-M: Robert Love <rlove@rlove.org>
-M: Eric Paris <eparis@parisplace.org>
+M: Jan Kara <jack@suse.cz>
+R: Amir Goldstein <amir73il@gmail.com>
+L: linux-fsdevel@vger.kernel.org
S: Maintained
F: Documentation/filesystems/inotify.txt
F: fs/notify/inotify/
@@ -6616,6 +6832,28 @@ F: Documentation/input/multi-touch-protocol.rst
F: drivers/input/input-mt.c
K: \b(ABS|SYN)_MT_
+INSIDE SECURE CRYPTO DRIVER
+M: Antoine Tenart <antoine.tenart@free-electrons.com>
+F: drivers/crypto/inside-secure/
+S: Maintained
+L: linux-crypto@vger.kernel.org
+
+INTEGRITY MEASUREMENT ARCHITECTURE (IMA)
+M: Mimi Zohar <zohar@linux.vnet.ibm.com>
+M: Dmitry Kasatkin <dmitry.kasatkin@gmail.com>
+L: linux-ima-devel@lists.sourceforge.net
+L: linux-ima-user@lists.sourceforge.net
+L: linux-security-module@vger.kernel.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git
+S: Supported
+F: security/integrity/ima/
+
+INTEL 810/815 FRAMEBUFFER DRIVER
+M: Antonino Daplas <adaplas@gmail.com>
+L: linux-fbdev@vger.kernel.org
+S: Maintained
+F: drivers/video/fbdev/i810/
+
INTEL ASoC BDW/HSW DRIVERS
M: Jie Yang <yang.jie@linux.intel.com>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
@@ -6633,17 +6871,75 @@ T: git git://git.code.sf.net/p/intel-sas/isci
S: Supported
F: drivers/scsi/isci/
+INTEL DRM DRIVERS (excluding Poulsbo, Moorestown and derivative chipsets)
+M: Jani Nikula <jani.nikula@linux.intel.com>
+M: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
+M: Rodrigo Vivi <rodrigo.vivi@intel.com>
+L: intel-gfx@lists.freedesktop.org
+W: https://01.org/linuxgraphics/
+B: https://01.org/linuxgraphics/documentation/how-report-bugs
+C: irc://chat.freenode.net/intel-gfx
+Q: http://patchwork.freedesktop.org/project/intel-gfx/
+T: git git://anongit.freedesktop.org/drm-intel
+S: Supported
+F: drivers/gpu/drm/i915/
+F: include/drm/i915*
+F: include/uapi/drm/i915_drm.h
+F: Documentation/gpu/i915.rst
+
+INTEL ETHERNET DRIVERS
+M: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
+L: intel-wired-lan@lists.osuosl.org (moderated for non-subscribers)
+W: http://www.intel.com/support/feedback.htm
+W: http://e1000.sourceforge.net/
+Q: http://patchwork.ozlabs.org/project/intel-wired-lan/list/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue.git
+S: Supported
+F: Documentation/networking/e100.txt
+F: Documentation/networking/e1000.txt
+F: Documentation/networking/e1000e.txt
+F: Documentation/networking/igb.txt
+F: Documentation/networking/igbvf.txt
+F: Documentation/networking/ixgb.txt
+F: Documentation/networking/ixgbe.txt
+F: Documentation/networking/ixgbevf.txt
+F: Documentation/networking/i40e.txt
+F: Documentation/networking/i40evf.txt
+F: drivers/net/ethernet/intel/
+F: drivers/net/ethernet/intel/*/
+F: include/linux/avf/virtchnl.h
+
+INTEL FRAMEBUFFER DRIVER (excluding 810 and 815)
+M: Maik Broemme <mbroemme@libmpq.org>
+L: linux-fbdev@vger.kernel.org
+S: Maintained
+F: Documentation/fb/intelfb.txt
+F: drivers/video/fbdev/intelfb/
+
+INTEL GVT-g DRIVERS (Intel GPU Virtualization)
+M: Zhenyu Wang <zhenyuw@linux.intel.com>
+M: Zhi Wang <zhi.a.wang@intel.com>
+L: intel-gvt-dev@lists.freedesktop.org
+L: intel-gfx@lists.freedesktop.org
+W: https://01.org/igvt-g
+T: git https://github.com/01org/gvt-linux.git
+S: Supported
+F: drivers/gpu/drm/i915/gvt/
+
INTEL HID EVENT DRIVER
M: Alex Hung <alex.hung@canonical.com>
L: platform-driver-x86@vger.kernel.org
S: Maintained
F: drivers/platform/x86/intel-hid.c
-INTEL VIRTUAL BUTTON DRIVER
-M: AceLan Kao <acelan.kao@canonical.com>
-L: platform-driver-x86@vger.kernel.org
-S: Maintained
-F: drivers/platform/x86/intel-vbtn.c
+INTEL I/OAT DMA DRIVER
+M: Dave Jiang <dave.jiang@intel.com>
+R: Dan Williams <dan.j.williams@intel.com>
+L: dmaengine@vger.kernel.org
+Q: https://patchwork.kernel.org/project/linux-dmaengine/list/
+S: Supported
+F: drivers/dma/ioat*
INTEL IDLE DRIVER
M: Jacob Pan <jacob.jun.pan@linux.intel.com>
@@ -6661,41 +6957,6 @@ L: linux-input@vger.kernel.org
S: Maintained
F: drivers/hid/intel-ish-hid/
-INTEL PSTATE DRIVER
-M: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
-M: Len Brown <lenb@kernel.org>
-L: linux-pm@vger.kernel.org
-S: Supported
-F: drivers/cpufreq/intel_pstate.c
-
-INTEL FRAMEBUFFER DRIVER (excluding 810 and 815)
-M: Maik Broemme <mbroemme@libmpq.org>
-L: linux-fbdev@vger.kernel.org
-S: Maintained
-F: Documentation/fb/intelfb.txt
-F: drivers/video/fbdev/intelfb/
-
-INTEL 810/815 FRAMEBUFFER DRIVER
-M: Antonino Daplas <adaplas@gmail.com>
-L: linux-fbdev@vger.kernel.org
-S: Maintained
-F: drivers/video/fbdev/i810/
-
-INTEL MENLOW THERMAL DRIVER
-M: Sujith Thomas <sujith.thomas@intel.com>
-L: platform-driver-x86@vger.kernel.org
-W: https://01.org/linux-acpi
-S: Supported
-F: drivers/platform/x86/intel_menlow.c
-
-INTEL I/OAT DMA DRIVER
-M: Dave Jiang <dave.jiang@intel.com>
-R: Dan Williams <dan.j.williams@intel.com>
-L: dmaengine@vger.kernel.org
-Q: https://patchwork.kernel.org/project/linux-dmaengine/list/
-S: Supported
-F: drivers/dma/ioat*
-
INTEL IOMMU (VT-d)
M: David Woodhouse <dwmw2@infradead.org>
L: iommu@lists.linux-foundation.org
@@ -6724,34 +6985,23 @@ M: Deepak Saxena <dsaxena@plexity.net>
S: Maintained
F: drivers/char/hw_random/ixp4xx-rng.c
-INTEL ETHERNET DRIVERS
-M: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
-L: intel-wired-lan@lists.osuosl.org (moderated for non-subscribers)
-W: http://www.intel.com/support/feedback.htm
-W: http://e1000.sourceforge.net/
-Q: http://patchwork.ozlabs.org/project/intel-wired-lan/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue.git
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue.git
+INTEL MANAGEMENT ENGINE (mei)
+M: Tomas Winkler <tomas.winkler@intel.com>
+L: linux-kernel@vger.kernel.org
S: Supported
-F: Documentation/networking/e100.txt
-F: Documentation/networking/e1000.txt
-F: Documentation/networking/e1000e.txt
-F: Documentation/networking/igb.txt
-F: Documentation/networking/igbvf.txt
-F: Documentation/networking/ixgb.txt
-F: Documentation/networking/ixgbe.txt
-F: Documentation/networking/ixgbevf.txt
-F: Documentation/networking/i40e.txt
-F: Documentation/networking/i40evf.txt
-F: drivers/net/ethernet/intel/
-F: drivers/net/ethernet/intel/*/
+F: include/uapi/linux/mei.h
+F: include/linux/mei_cl_bus.h
+F: drivers/misc/mei/*
+F: drivers/watchdog/mei_wdt.c
+F: Documentation/misc-devices/mei/*
+F: samples/mei/*
-INTEL RDMA RNIC DRIVER
-M: Faisal Latif <faisal.latif@intel.com>
-M: Shiraz Saleem <shiraz.saleem@intel.com>
-L: linux-rdma@vger.kernel.org
-S: Supported
-F: drivers/infiniband/hw/i40iw/
+INTEL MENLOW THERMAL DRIVER
+M: Sujith Thomas <sujith.thomas@intel.com>
+L: platform-driver-x86@vger.kernel.org
+W: https://01.org/linux-acpi
+S: Supported
+F: drivers/platform/x86/intel_menlow.c
INTEL MERRIFIELD GPIO DRIVER
M: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
@@ -6759,11 +7009,38 @@ L: linux-gpio@vger.kernel.org
S: Maintained
F: drivers/gpio/gpio-merrifield.c
-INTEL-MID GPIO DRIVER
-M: David Cohen <david.a.cohen@linux.intel.com>
-L: linux-gpio@vger.kernel.org
+INTEL MIC DRIVERS (mic)
+M: Sudeep Dutt <sudeep.dutt@intel.com>
+M: Ashutosh Dixit <ashutosh.dixit@intel.com>
+S: Supported
+W: https://github.com/sudeepdutt/mic
+W: http://software.intel.com/en-us/mic-developer
+F: include/linux/mic_bus.h
+F: include/linux/scif.h
+F: include/uapi/linux/mic_common.h
+F: include/uapi/linux/mic_ioctl.h
+F: include/uapi/linux/scif_ioctl.h
+F: drivers/misc/mic/
+F: drivers/dma/mic_x100_dma.c
+F: drivers/dma/mic_x100_dma.h
+F: Documentation/mic/
+
+INTEL PMC CORE DRIVER
+M: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
+M: Vishwanath Somayaji <vishwanath.somayaji@intel.com>
+L: platform-driver-x86@vger.kernel.org
S: Maintained
-F: drivers/gpio/gpio-intel-mid.c
+F: arch/x86/include/asm/pmc_core.h
+F: drivers/platform/x86/intel_pmc_core*
+
+INTEL PMC/P-Unit IPC DRIVER
+M: Zha Qipeng<qipeng.zha@intel.com>
+L: platform-driver-x86@vger.kernel.org
+S: Maintained
+F: drivers/platform/x86/intel_pmc_ipc.c
+F: drivers/platform/x86/intel_punit_ipc.c
+F: arch/x86/include/asm/intel_pmc_ipc.h
+F: arch/x86/include/asm/intel_punit_ipc.h
INTEL PRO/WIRELESS 2100, 2200BG, 2915ABG NETWORK CONNECTION SUPPORT
M: Stanislav Yakovlev <stas.yakovlev@gmail.com>
@@ -6773,31 +7050,32 @@ F: Documentation/networking/README.ipw2100
F: Documentation/networking/README.ipw2200
F: drivers/net/wireless/intel/ipw2x00/
-INTEL(R) TRACE HUB
-M: Alexander Shishkin <alexander.shishkin@linux.intel.com>
+INTEL PSTATE DRIVER
+M: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
+M: Len Brown <lenb@kernel.org>
+L: linux-pm@vger.kernel.org
S: Supported
-F: Documentation/trace/intel_th.txt
-F: drivers/hwtracing/intel_th/
+F: drivers/cpufreq/intel_pstate.c
-INTEL(R) TRUSTED EXECUTION TECHNOLOGY (TXT)
-M: Ning Sun <ning.sun@intel.com>
-L: tboot-devel@lists.sourceforge.net
-W: http://tboot.sourceforge.net
-T: hg http://tboot.hg.sourceforge.net:8000/hgroot/tboot/tboot
+INTEL RDMA RNIC DRIVER
+M: Faisal Latif <faisal.latif@intel.com>
+M: Shiraz Saleem <shiraz.saleem@intel.com>
+L: linux-rdma@vger.kernel.org
S: Supported
-F: Documentation/intel_txt.txt
-F: include/linux/tboot.h
-F: arch/x86/kernel/tboot.c
+F: drivers/infiniband/hw/i40iw/
-INTEL WIRELESS WIMAX CONNECTION 2400
-M: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
-M: linux-wimax@intel.com
-L: wimax@linuxwimax.org (subscribers-only)
-S: Supported
-W: http://linuxwimax.org
-F: Documentation/wimax/README.i2400m
-F: drivers/net/wimax/i2400m/
-F: include/uapi/linux/wimax/i2400m.h
+INTEL TELEMETRY DRIVER
+M: Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com>
+L: platform-driver-x86@vger.kernel.org
+S: Maintained
+F: arch/x86/include/asm/intel_telemetry.h
+F: drivers/platform/x86/intel_telemetry*
+
+INTEL VIRTUAL BUTTON DRIVER
+M: AceLan Kao <acelan.kao@canonical.com>
+L: platform-driver-x86@vger.kernel.org
+S: Maintained
+F: drivers/platform/x86/intel-vbtn.c
INTEL WIRELESS 3945ABG/BG, 4965AGN (iwlegacy)
M: Stanislaw Gruszka <sgruszka@redhat.com>
@@ -6816,56 +7094,37 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi.git
S: Supported
F: drivers/net/wireless/intel/iwlwifi/
-INTEL MANAGEMENT ENGINE (mei)
-M: Tomas Winkler <tomas.winkler@intel.com>
-L: linux-kernel@vger.kernel.org
+INTEL WIRELESS WIMAX CONNECTION 2400
+M: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
+M: linux-wimax@intel.com
+L: wimax@linuxwimax.org (subscribers-only)
S: Supported
-F: include/uapi/linux/mei.h
-F: include/linux/mei_cl_bus.h
-F: drivers/misc/mei/*
-F: drivers/watchdog/mei_wdt.c
-F: Documentation/misc-devices/mei/*
-F: samples/mei/*
+W: http://linuxwimax.org
+F: Documentation/wimax/README.i2400m
+F: drivers/net/wimax/i2400m/
+F: include/uapi/linux/wimax/i2400m.h
-INTEL MIC DRIVERS (mic)
-M: Sudeep Dutt <sudeep.dutt@intel.com>
-M: Ashutosh Dixit <ashutosh.dixit@intel.com>
+INTEL(R) TRACE HUB
+M: Alexander Shishkin <alexander.shishkin@linux.intel.com>
S: Supported
-W: https://github.com/sudeepdutt/mic
-W: http://software.intel.com/en-us/mic-developer
-F: include/linux/mic_bus.h
-F: include/linux/scif.h
-F: include/uapi/linux/mic_common.h
-F: include/uapi/linux/mic_ioctl.h
-F: include/uapi/linux/scif_ioctl.h
-F: drivers/misc/mic/
-F: drivers/dma/mic_x100_dma.c
-F: drivers/dma/mic_x100_dma.h
-F: Documentation/mic/
-
-INTEL PMC/P-Unit IPC DRIVER
-M: Zha Qipeng<qipeng.zha@intel.com>
-L: platform-driver-x86@vger.kernel.org
-S: Maintained
-F: drivers/platform/x86/intel_pmc_ipc.c
-F: drivers/platform/x86/intel_punit_ipc.c
-F: arch/x86/include/asm/intel_pmc_ipc.h
-F: arch/x86/include/asm/intel_punit_ipc.h
+F: Documentation/trace/intel_th.txt
+F: drivers/hwtracing/intel_th/
-INTEL TELEMETRY DRIVER
-M: Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com>
-L: platform-driver-x86@vger.kernel.org
-S: Maintained
-F: arch/x86/include/asm/intel_telemetry.h
-F: drivers/platform/x86/intel_telemetry*
+INTEL(R) TRUSTED EXECUTION TECHNOLOGY (TXT)
+M: Ning Sun <ning.sun@intel.com>
+L: tboot-devel@lists.sourceforge.net
+W: http://tboot.sourceforge.net
+T: hg http://tboot.hg.sourceforge.net:8000/hgroot/tboot/tboot
+S: Supported
+F: Documentation/intel_txt.txt
+F: include/linux/tboot.h
+F: arch/x86/kernel/tboot.c
-INTEL PMC CORE DRIVER
-M: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
-M: Vishwanath Somayaji <vishwanath.somayaji@intel.com>
-L: platform-driver-x86@vger.kernel.org
+INTEL-MID GPIO DRIVER
+M: David Cohen <david.a.cohen@linux.intel.com>
+L: linux-gpio@vger.kernel.org
S: Maintained
-F: arch/x86/include/asm/pmc_core.h
-F: drivers/platform/x86/intel_pmc_core*
+F: drivers/gpio/gpio-intel-mid.c
INVENSENSE MPU-3050 GYROSCOPE DRIVER
M: Linus Walleij <linus.walleij@linaro.org>
@@ -6911,13 +7170,6 @@ F: drivers/char/ipmi/
F: include/linux/ipmi*
F: include/uapi/linux/ipmi*
-QCOM AUDIO (ASoC) DRIVERS
-M: Patrick Lai <plai@codeaurora.org>
-M: Banajit Goswami <bgoswami@codeaurora.org>
-L: alsa-devel@alsa-project.org (moderated for non-subscribers)
-S: Supported
-F: sound/soc/qcom/
-
IPS SCSI RAID DRIVER
M: Adaptec OEM Raid Solutions <aacraid@adaptec.com>
L: linux-scsi@vger.kernel.org
@@ -6960,9 +7212,16 @@ W: http://irda.sourceforge.net/
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/sameo/irda-2.6.git
F: Documentation/networking/irda.txt
-F: drivers/net/irda/
-F: include/net/irda/
-F: net/irda/
+F: drivers/staging/irda/
+
+IRQ DOMAINS (IRQ NUMBER MAPPING LIBRARY)
+M: Marc Zyngier <marc.zyngier@arm.com>
+S: Maintained
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core
+F: Documentation/IRQ-domain.txt
+F: include/linux/irqdomain.h
+F: kernel/irq/irqdomain.c
+F: kernel/irq/msi.c
IRQ SUBSYSTEM
M: Thomas Gleixner <tglx@linutronix.de>
@@ -6978,19 +7237,9 @@ M: Marc Zyngier <marc.zyngier@arm.com>
L: linux-kernel@vger.kernel.org
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core
-T: git git://git.infradead.org/users/jcooper/linux.git irqchip/core
F: Documentation/devicetree/bindings/interrupt-controller/
F: drivers/irqchip/
-IRQ DOMAINS (IRQ NUMBER MAPPING LIBRARY)
-M: Marc Zyngier <marc.zyngier@arm.com>
-S: Maintained
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core
-F: Documentation/IRQ-domain.txt
-F: include/linux/irqdomain.h
-F: kernel/irq/irqdomain.c
-F: kernel/irq/msi.c
-
ISA
M: William Breathitt Gray <vilhelm.gray@gmail.com>
S: Maintained
@@ -6998,13 +7247,6 @@ F: Documentation/isa.txt
F: drivers/base/isa.c
F: include/linux/isa.h
-ISAPNP
-M: Jaroslav Kysela <perex@perex.cz>
-S: Maintained
-F: Documentation/isapnp.txt
-F: drivers/pnp/isapnp/
-F: include/linux/isapnp.h
-
ISA RADIO MODULE
M: Hans Verkuil <hverkuil@xs4all.nl>
L: linux-media@vger.kernel.org
@@ -7013,11 +7255,12 @@ W: https://linuxtv.org
S: Maintained
F: drivers/media/radio/radio-isa*
-iSCSI BOOT FIRMWARE TABLE (iBFT) DRIVER
-M: Peter Jones <pjones@redhat.com>
-M: Konrad Rzeszutek Wilk <konrad@kernel.org>
+ISAPNP
+M: Jaroslav Kysela <perex@perex.cz>
S: Maintained
-F: drivers/firmware/iscsi_ibft*
+F: Documentation/isapnp.txt
+F: drivers/pnp/isapnp/
+F: include/linux/isapnp.h
ISCSI
M: Lee Duncan <lduncan@suse.com>
@@ -7028,6 +7271,12 @@ S: Maintained
F: drivers/scsi/*iscsi*
F: include/scsi/*iscsi*
+iSCSI BOOT FIRMWARE TABLE (iBFT) DRIVER
+M: Peter Jones <pjones@redhat.com>
+M: Konrad Rzeszutek Wilk <konrad@kernel.org>
+S: Maintained
+F: drivers/firmware/iscsi_ibft*
+
ISCSI EXTENSIONS FOR RDMA (ISER) INITIATOR
M: Or Gerlitz <ogerlitz@mellanox.com>
M: Sagi Grimberg <sagi@grimberg.me>
@@ -7252,9 +7501,17 @@ KERNEL SELFTEST FRAMEWORK
M: Shuah Khan <shuahkh@osg.samsung.com>
M: Shuah Khan <shuah@kernel.org>
L: linux-kselftest@vger.kernel.org
-T: git git://git.kernel.org/pub/scm/shuah/linux-kselftest
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git
S: Maintained
-F: tools/testing/selftests
+F: tools/testing/selftests/
+F: Documentation/dev-tools/kselftest*
+
+KERNEL USERMODE HELPER
+M: "Luis R. Rodriguez" <mcgrof@kernel.org>
+L: linux-kernel@vger.kernel.org
+S: Maintained
+F: kernel/umh.c
+F: include/linux/umh.h
KERNEL VIRTUAL MACHINE (KVM)
M: Paolo Bonzini <pbonzini@redhat.com>
@@ -7263,18 +7520,17 @@ L: kvm@vger.kernel.org
W: http://www.linux-kvm.org
T: git git://git.kernel.org/pub/scm/virt/kvm/kvm.git
S: Supported
-F: Documentation/*/kvm*.txt
F: Documentation/virtual/kvm/
-F: arch/*/kvm/
-F: arch/x86/kernel/kvm.c
-F: arch/x86/kernel/kvmclock.c
-F: arch/*/include/asm/kvm*
-F: include/linux/kvm*
+F: include/trace/events/kvm.h
+F: include/uapi/asm-generic/kvm*
F: include/uapi/linux/kvm*
-F: virt/kvm/
+F: include/asm-generic/kvm*
+F: include/linux/kvm*
+F: include/kvm/iodev.h
+F: virt/kvm/*
F: tools/kvm/
-KERNEL VIRTUAL MACHINE (KVM) FOR AMD-V
+KERNEL VIRTUAL MACHINE FOR AMD-V (KVM/amd)
M: Joerg Roedel <joro@8bytes.org>
L: kvm@vger.kernel.org
W: http://www.linux-kvm.org/
@@ -7282,28 +7538,7 @@ S: Maintained
F: arch/x86/include/asm/svm.h
F: arch/x86/kvm/svm.c
-KERNEL VIRTUAL MACHINE (KVM) FOR POWERPC
-M: Alexander Graf <agraf@suse.com>
-L: kvm-ppc@vger.kernel.org
-W: http://www.linux-kvm.org/
-T: git git://github.com/agraf/linux-2.6.git
-S: Supported
-F: arch/powerpc/include/asm/kvm*
-F: arch/powerpc/kvm/
-
-KERNEL VIRTUAL MACHINE for s390 (KVM/s390)
-M: Christian Borntraeger <borntraeger@de.ibm.com>
-M: Cornelia Huck <cornelia.huck@de.ibm.com>
-L: linux-s390@vger.kernel.org
-W: http://www.ibm.com/developerworks/linux/linux390/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux.git
-S: Supported
-F: Documentation/s390/kvm.txt
-F: arch/s390/include/asm/kvm*
-F: arch/s390/kvm/
-F: arch/s390/mm/gmap.c
-
-KERNEL VIRTUAL MACHINE (KVM) FOR ARM
+KERNEL VIRTUAL MACHINE FOR ARM (KVM/arm)
M: Christoffer Dall <christoffer.dall@linaro.org>
M: Marc Zyngier <marc.zyngier@arm.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -7328,13 +7563,50 @@ F: arch/arm64/include/asm/kvm*
F: arch/arm64/kvm/
KERNEL VIRTUAL MACHINE FOR MIPS (KVM/mips)
-M: James Hogan <james.hogan@imgtec.com>
+M: James Hogan <jhogan@kernel.org>
L: linux-mips@linux-mips.org
S: Supported
F: arch/mips/include/uapi/asm/kvm*
F: arch/mips/include/asm/kvm*
F: arch/mips/kvm/
+KERNEL VIRTUAL MACHINE FOR POWERPC (KVM/powerpc)
+M: Paul Mackerras <paulus@ozlabs.org>
+L: kvm-ppc@vger.kernel.org
+W: http://www.linux-kvm.org/
+T: git git://github.com/agraf/linux-2.6.git
+S: Supported
+F: arch/powerpc/include/uapi/asm/kvm*
+F: arch/powerpc/include/asm/kvm*
+F: arch/powerpc/kvm/
+F: arch/powerpc/kernel/kvm*
+
+KERNEL VIRTUAL MACHINE for s390 (KVM/s390)
+M: Christian Borntraeger <borntraeger@de.ibm.com>
+M: Cornelia Huck <cohuck@redhat.com>
+L: linux-s390@vger.kernel.org
+W: http://www.ibm.com/developerworks/linux/linux390/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux.git
+S: Supported
+F: arch/s390/include/uapi/asm/kvm*
+F: arch/s390/include/asm/gmap.h
+F: arch/s390/include/asm/kvm*
+F: arch/s390/kvm/
+F: arch/s390/mm/gmap.c
+
+KERNEL VIRTUAL MACHINE FOR X86 (KVM/x86)
+M: Paolo Bonzini <pbonzini@redhat.com>
+M: Radim KrÄmář <rkrcmar@redhat.com>
+L: kvm@vger.kernel.org
+W: http://www.linux-kvm.org
+T: git git://git.kernel.org/pub/scm/virt/kvm/kvm.git
+S: Supported
+F: arch/x86/kvm/
+F: arch/x86/include/uapi/asm/kvm*
+F: arch/x86/include/asm/kvm*
+F: arch/x86/kernel/kvm.c
+F: arch/x86/kernel/kvmclock.c
+
KERNFS
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
M: Tejun Heo <tj@kernel.org>
@@ -7352,17 +7624,15 @@ F: include/linux/kexec.h
F: include/uapi/linux/kexec.h
F: kernel/kexec*
-KEYS/KEYRINGS:
-M: David Howells <dhowells@redhat.com>
+KEYS-ENCRYPTED
+M: Mimi Zohar <zohar@linux.vnet.ibm.com>
+M: David Safford <safford@us.ibm.com>
+L: linux-security-module@vger.kernel.org
L: keyrings@vger.kernel.org
-S: Maintained
-F: Documentation/security/keys.txt
-F: include/linux/key.h
-F: include/linux/key-type.h
-F: include/linux/keyctl.h
-F: include/uapi/linux/keyctl.h
-F: include/keys/
-F: security/keys/
+S: Supported
+F: Documentation/security/keys/trusted-encrypted.rst
+F: include/keys/encrypted-type.h
+F: security/keys/encrypted-keys/
KEYS-TRUSTED
M: David Safford <safford@us.ibm.com>
@@ -7370,20 +7640,22 @@ M: Mimi Zohar <zohar@linux.vnet.ibm.com>
L: linux-security-module@vger.kernel.org
L: keyrings@vger.kernel.org
S: Supported
-F: Documentation/security/keys-trusted-encrypted.txt
+F: Documentation/security/keys/trusted-encrypted.rst
F: include/keys/trusted-type.h
F: security/keys/trusted.c
F: security/keys/trusted.h
-KEYS-ENCRYPTED
-M: Mimi Zohar <zohar@linux.vnet.ibm.com>
-M: David Safford <safford@us.ibm.com>
-L: linux-security-module@vger.kernel.org
+KEYS/KEYRINGS:
+M: David Howells <dhowells@redhat.com>
L: keyrings@vger.kernel.org
-S: Supported
-F: Documentation/security/keys-trusted-encrypted.txt
-F: include/keys/encrypted-type.h
-F: security/keys/encrypted-keys/
+S: Maintained
+F: Documentation/security/keys/core.rst
+F: include/linux/key.h
+F: include/linux/key-type.h
+F: include/linux/keyctl.h
+F: include/uapi/linux/keyctl.h
+F: include/keys/
+F: security/keys/
KGDB / KDB /debug_core
M: Jason Wessel <jason.wessel@windriver.com>
@@ -7391,7 +7663,7 @@ W: http://kgdb.wiki.kernel.org/
L: kgdb-bugreport@lists.sourceforge.net
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb.git
S: Maintained
-F: Documentation/DocBook/kgdb.tmpl
+F: Documentation/dev-tools/kgdb.rst
F: drivers/misc/kgdbts.c
F: drivers/tty/serial/kgdboc.c
F: include/linux/kdb.h
@@ -7416,6 +7688,15 @@ F: include/linux/kmemleak.h
F: mm/kmemleak.c
F: mm/kmemleak-test.c
+KMOD KERNEL MODULE LOADER - USERMODE HELPER
+M: "Luis R. Rodriguez" <mcgrof@kernel.org>
+L: linux-kernel@vger.kernel.org
+S: Maintained
+F: kernel/kmod.c
+F: include/linux/kmod.h
+F: lib/test_kmod.c
+F: tools/testing/selftests/kmod/
+
KPROBES
M: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
M: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
@@ -7448,6 +7729,7 @@ M: John Crispin <john@phrozen.org>
L: linux-mips@linux-mips.org
S: Maintained
F: arch/mips/lantiq
+F: drivers/soc/lantiq
LAPB module
L: linux-x25@vger.kernel.org
@@ -7507,27 +7789,6 @@ T: git git://linuxtv.org/mkrufky/tuners.git
S: Maintained
F: drivers/media/dvb-frontends/lgdt3305.*
-LGUEST
-M: Rusty Russell <rusty@rustcorp.com.au>
-L: lguest@lists.ozlabs.org
-W: http://lguest.ozlabs.org/
-S: Odd Fixes
-F: arch/x86/include/asm/lguest*.h
-F: arch/x86/lguest/
-F: drivers/lguest/
-F: include/linux/lguest*.h
-F: tools/lguest/
-
-LIBATA SUBSYSTEM (Serial and Parallel ATA drivers)
-M: Tejun Heo <tj@kernel.org>
-L: linux-ide@vger.kernel.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
-S: Maintained
-F: drivers/ata/
-F: include/linux/ata.h
-F: include/linux/libata.h
-F: Documentation/devicetree/bindings/ata/
-
LIBATA PATA ARASAN COMPACT FLASH CONTROLLER
M: Viresh Kumar <vireshk@kernel.org>
L: linux-ide@vger.kernel.org
@@ -7545,6 +7806,15 @@ S: Maintained
F: drivers/ata/pata_*.c
F: drivers/ata/ata_generic.c
+LIBATA PATA FARADAY FTIDE010 AND GEMINI SATA BRIDGE DRIVERS
+M: Linus Walleij <linus.walleij@linaro.org>
+L: linux-ide@vger.kernel.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
+S: Maintained
+F: drivers/ata/pata_ftide010.c
+F: drivers/ata/sata_gemini.c
+F: drivers/ata/sata_gemini.h
+
LIBATA SATA AHCI PLATFORM devices support
M: Hans de Goede <hdegoede@redhat.com>
M: Tejun Heo <tj@kernel.org>
@@ -7562,22 +7832,21 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
S: Maintained
F: drivers/ata/sata_promise.*
+LIBATA SUBSYSTEM (Serial and Parallel ATA drivers)
+M: Tejun Heo <tj@kernel.org>
+L: linux-ide@vger.kernel.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
+S: Maintained
+F: drivers/ata/
+F: include/linux/ata.h
+F: include/linux/libata.h
+F: Documentation/devicetree/bindings/ata/
+
LIBLOCKDEP
-M: Sasha Levin <sasha.levin@oracle.com>
+M: Sasha Levin <alexander.levin@verizon.com>
S: Maintained
F: tools/lib/lockdep/
-LIBNVDIMM: NON-VOLATILE MEMORY DEVICE SUBSYSTEM
-M: Dan Williams <dan.j.williams@intel.com>
-L: linux-nvdimm@lists.01.org
-Q: https://patchwork.kernel.org/project/linux-nvdimm/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm.git
-S: Supported
-F: drivers/nvdimm/*
-F: include/linux/nd.h
-F: include/linux/libnvdimm.h
-F: include/uapi/linux/ndctl.h
-
LIBNVDIMM BLK: MMIO-APERTURE DRIVER
M: Ross Zwisler <ross.zwisler@linux.intel.com>
L: linux-nvdimm@lists.01.org
@@ -7585,7 +7854,6 @@ Q: https://patchwork.kernel.org/project/linux-nvdimm/list/
S: Supported
F: drivers/nvdimm/blk.c
F: drivers/nvdimm/region_devs.c
-F: drivers/acpi/nfit*
LIBNVDIMM BTT: BLOCK TRANSLATION TABLE
M: Vishal Verma <vishal.l.verma@intel.com>
@@ -7599,9 +7867,19 @@ M: Ross Zwisler <ross.zwisler@linux.intel.com>
L: linux-nvdimm@lists.01.org
Q: https://patchwork.kernel.org/project/linux-nvdimm/list/
S: Supported
-F: drivers/nvdimm/pmem.c
-F: include/linux/pmem.h
-F: arch/*/include/asm/pmem.h
+F: drivers/nvdimm/pmem*
+
+LIBNVDIMM: NON-VOLATILE MEMORY DEVICE SUBSYSTEM
+M: Dan Williams <dan.j.williams@intel.com>
+L: linux-nvdimm@lists.01.org
+Q: https://patchwork.kernel.org/project/linux-nvdimm/list/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm.git
+S: Supported
+F: drivers/nvdimm/*
+F: drivers/acpi/nfit/*
+F: include/linux/nd.h
+F: include/linux/libnvdimm.h
+F: include/uapi/linux/ndctl.h
LIGHTNVM PLATFORM SUPPORT
M: Matias Bjorling <mb@lightnvm.io>
@@ -7612,6 +7890,14 @@ F: drivers/lightnvm/
F: include/linux/lightnvm.h
F: include/uapi/linux/lightnvm.h
+LINUX FOR POWER MACINTOSH
+M: Benjamin Herrenschmidt <benh@kernel.crashing.org>
+W: http://www.penguinppc.org/
+L: linuxppc-dev@lists.ozlabs.org
+S: Maintained
+F: arch/powerpc/platforms/powermac/
+F: drivers/macintosh/
+
LINUX FOR POWERPC (32-BIT AND 64-BIT)
M: Benjamin Herrenschmidt <benh@kernel.crashing.org>
M: Paul Mackerras <paulus@samba.org>
@@ -7638,6 +7924,7 @@ F: drivers/pci/hotplug/rpa*
F: drivers/rtc/rtc-opal.c
F: drivers/scsi/ibmvscsi/
F: drivers/tty/hvc/hvc_opal.c
+F: drivers/watchdog/wdrtas.c
F: tools/testing/selftests/powerpc
N: /pmac
N: powermac
@@ -7645,14 +7932,6 @@ N: powernv
N: [^a-z0-9]ps3
N: pseries
-LINUX FOR POWER MACINTOSH
-M: Benjamin Herrenschmidt <benh@kernel.crashing.org>
-W: http://www.penguinppc.org/
-L: linuxppc-dev@lists.ozlabs.org
-S: Maintained
-F: arch/powerpc/platforms/powermac/
-F: drivers/macintosh/
-
LINUX FOR POWERPC EMBEDDED MPC5XXX
M: Anatolij Gustschin <agust@denx.de>
L: linuxppc-dev@lists.ozlabs.org
@@ -7670,11 +7949,16 @@ S: Maintained
F: arch/powerpc/platforms/40x/
F: arch/powerpc/platforms/44x/
-LINUX FOR POWERPC EMBEDDED XILINX VIRTEX
+LINUX FOR POWERPC EMBEDDED PPC83XX AND PPC85XX
+M: Scott Wood <oss@buserror.net>
+M: Kumar Gala <galak@kernel.crashing.org>
+W: http://www.penguinppc.org/
L: linuxppc-dev@lists.ozlabs.org
-S: Orphan
-F: arch/powerpc/*/*virtex*
-F: arch/powerpc/*/*/*virtex*
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux.git
+S: Maintained
+F: arch/powerpc/platforms/83xx/
+F: arch/powerpc/platforms/85xx/
+F: Documentation/devicetree/bindings/powerpc/fsl/
LINUX FOR POWERPC EMBEDDED PPC8XX
M: Vitaly Bordug <vitb@kernel.crashing.org>
@@ -7683,15 +7967,11 @@ L: linuxppc-dev@lists.ozlabs.org
S: Maintained
F: arch/powerpc/platforms/8xx/
-LINUX FOR POWERPC EMBEDDED PPC83XX AND PPC85XX
-M: Scott Wood <oss@buserror.net>
-M: Kumar Gala <galak@kernel.crashing.org>
-W: http://www.penguinppc.org/
+LINUX FOR POWERPC EMBEDDED XILINX VIRTEX
L: linuxppc-dev@lists.ozlabs.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux.git
-S: Maintained
-F: arch/powerpc/platforms/83xx/
-F: arch/powerpc/platforms/85xx/
+S: Orphan
+F: arch/powerpc/*/*virtex*
+F: arch/powerpc/*/*/*virtex*
LINUX FOR POWERPC PA SEMI PWRFICIENT
L: linuxppc-dev@lists.ozlabs.org
@@ -7700,6 +7980,11 @@ F: arch/powerpc/platforms/pasemi/
F: drivers/*/*pasemi*
F: drivers/*/*/*pasemi*
+LINUX KERNEL DUMP TEST MODULE (LKDTM)
+M: Kees Cook <keescook@chromium.org>
+S: Maintained
+F: drivers/misc/lkdtm*
+
LINUX SECURITY MODULE (LSM) FRAMEWORK
M: Chris Wright <chrisw@sous-sol.org>
L: linux-security-module@vger.kernel.org
@@ -7729,11 +8014,6 @@ F: samples/livepatch/
L: live-patching@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching.git
-LINUX KERNEL DUMP TEST MODULE (LKDTM)
-M: Kees Cook <keescook@chromium.org>
-S: Maintained
-F: drivers/misc/lkdtm*
-
LLC (802.2)
L: netdev@vger.kernel.org
S: Odd fixes
@@ -7786,6 +8066,13 @@ Q: http://patchwork.linuxtv.org/project/linux-media/list/
S: Maintained
F: drivers/media/usb/dvb-usb-v2/lmedm04*
+LOADPIN SECURITY MODULE
+M: Kees Cook <keescook@chromium.org>
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git lsm/loadpin
+S: Supported
+F: security/loadpin/
+F: Documentation/admin-guide/LSM/LoadPin.rst
+
LOCKING PRIMITIVES
M: Peter Zijlstra <peterz@infradead.org>
M: Ingo Molnar <mingo@redhat.com>
@@ -7978,6 +8265,12 @@ L: libertas-dev@lists.infradead.org
S: Orphan
F: drivers/net/wireless/marvell/libertas/
+MARVELL MACCHIATOBIN SUPPORT
+M: Russell King <rmk@armlinux.org.uk>
+L: linux-arm-kernel@lists.infradead.org
+S: Maintained
+F: arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts
+
MARVELL MV643XX ETHERNET DRIVER
M: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
L: netdev@vger.kernel.org
@@ -7985,6 +8278,12 @@ S: Maintained
F: drivers/net/ethernet/marvell/mv643xx_eth.*
F: include/linux/mv643xx.h
+MARVELL MV88X3310 PHY DRIVER
+M: Russell King <rmk@armlinux.org.uk>
+L: netdev@vger.kernel.org
+S: Maintained
+F: drivers/net/phy/marvell10g.c
+
MARVELL MVNETA ETHERNET DRIVER
M: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
L: netdev@vger.kernel.org
@@ -8038,6 +8337,16 @@ S: Maintained
F: Documentation/hwmon/max20751
F: drivers/hwmon/max20751.c
+MAX2175 SDR TUNER DRIVER
+M: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>
+L: linux-media@vger.kernel.org
+T: git git://linuxtv.org/media_tree.git
+S: Maintained
+F: Documentation/devicetree/bindings/media/i2c/max2175.txt
+F: Documentation/media/v4l-drivers/max2175.rst
+F: drivers/media/i2c/max2175*
+F: include/uapi/linux/max2175.h
+
MAX6650 HARDWARE MONITOR AND FAN CONTROLLER DRIVER
L: linux-hwmon@vger.kernel.org
S: Orphan
@@ -8060,6 +8369,14 @@ S: Maintained
F: Documentation/devicetree/bindings/sound/max9860.txt
F: sound/soc/codecs/max9860.*
+MAXIM MAX77802 PMIC REGULATOR DEVICE DRIVER
+M: Javier Martinez Canillas <javier@dowhile0.org>
+L: linux-kernel@vger.kernel.org
+S: Supported
+F: drivers/regulator/max77802-regulator.c
+F: Documentation/devicetree/bindings/*/*max77802.txt
+F: include/dt-bindings/*/*max77802.h
+
MAXIM MUIC CHARGER DRIVERS FOR EXYNOS BASED BOARDS
M: Krzysztof Kozlowski <krzk@kernel.org>
M: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
@@ -8068,14 +8385,6 @@ S: Supported
F: drivers/power/supply/max14577_charger.c
F: drivers/power/supply/max77693_charger.c
-MAXIM MAX77802 MULTIFUNCTION PMIC DEVICE DRIVERS
-M: Javier Martinez Canillas <javier@osg.samsung.com>
-L: linux-kernel@vger.kernel.org
-S: Supported
-F: drivers/*/*max77802*.c
-F: Documentation/devicetree/bindings/*/*max77802.txt
-F: include/dt-bindings/*/*max77802.h
-
MAXIM PMIC AND MUIC DRIVERS FOR EXYNOS BASED BOARDS
M: Chanwoo Choi <cw00.choi@samsung.com>
M: Krzysztof Kozlowski <krzk@kernel.org>
@@ -8118,42 +8427,45 @@ L: linux-iio@vger.kernel.org
S: Maintained
F: drivers/iio/dac/cio-dac.c
-MEDIA DRIVERS FOR RENESAS - FCP
-M: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+MEDIA DRIVERS FOR ASCOT2E
+M: Sergey Kozlov <serjk@netup.ru>
+M: Abylay Ospan <aospan@netup.ru>
L: linux-media@vger.kernel.org
-L: linux-renesas-soc@vger.kernel.org
+W: https://linuxtv.org
+W: http://netup.tv/
T: git git://linuxtv.org/media_tree.git
S: Supported
-F: Documentation/devicetree/bindings/media/renesas,fcp.txt
-F: drivers/media/platform/rcar-fcp.c
-F: include/media/rcar-fcp.h
+F: drivers/media/dvb-frontends/ascot2e*
-MEDIA DRIVERS FOR RENESAS - FDP1
-M: Kieran Bingham <kieran@bingham.xyz>
+MEDIA DRIVERS FOR CXD2841ER
+M: Sergey Kozlov <serjk@netup.ru>
+M: Abylay Ospan <aospan@netup.ru>
L: linux-media@vger.kernel.org
-L: linux-renesas-soc@vger.kernel.org
+W: https://linuxtv.org
+W: http://netup.tv/
T: git git://linuxtv.org/media_tree.git
S: Supported
-F: Documentation/devicetree/bindings/media/renesas,fdp1.txt
-F: drivers/media/platform/rcar_fdp1.c
+F: drivers/media/dvb-frontends/cxd2841er*
-MEDIA DRIVERS FOR RENESAS - VIN
-M: Niklas Söderlund <niklas.soderlund@ragnatech.se>
+MEDIA DRIVERS FOR DIGITAL DEVICES PCIE DEVICES
+M: Daniel Scheller <d.scheller.oss@gmail.com>
L: linux-media@vger.kernel.org
-L: linux-renesas-soc@vger.kernel.org
+W: https://linuxtv.org
T: git git://linuxtv.org/media_tree.git
-S: Supported
-F: Documentation/devicetree/bindings/media/rcar_vin.txt
-F: drivers/media/platform/rcar-vin/
+S: Maintained
+F: drivers/media/pci/ddbridge/*
-MEDIA DRIVERS FOR RENESAS - VSP1
-M: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+MEDIA DRIVERS FOR FREESCALE IMX
+M: Steve Longerbeam <slongerbeam@gmail.com>
+M: Philipp Zabel <p.zabel@pengutronix.de>
L: linux-media@vger.kernel.org
-L: linux-renesas-soc@vger.kernel.org
T: git git://linuxtv.org/media_tree.git
-S: Supported
-F: Documentation/devicetree/bindings/media/renesas,vsp1.txt
-F: drivers/media/platform/vsp1/
+S: Maintained
+F: Documentation/devicetree/bindings/media/imx.txt
+F: Documentation/media/v4l-drivers/imx.rst
+F: drivers/staging/media/imx/
+F: include/linux/imx-media.h
+F: include/media/imx.h
MEDIA DRIVERS FOR HELENE
M: Abylay Ospan <aospan@netup.ru>
@@ -8164,7 +8476,7 @@ T: git git://linuxtv.org/media_tree.git
S: Supported
F: drivers/media/dvb-frontends/helene*
-MEDIA DRIVERS FOR ASCOT2E
+MEDIA DRIVERS FOR HORUS3A
M: Sergey Kozlov <serjk@netup.ru>
M: Abylay Ospan <aospan@netup.ru>
L: linux-media@vger.kernel.org
@@ -8172,9 +8484,9 @@ W: https://linuxtv.org
W: http://netup.tv/
T: git git://linuxtv.org/media_tree.git
S: Supported
-F: drivers/media/dvb-frontends/ascot2e*
+F: drivers/media/dvb-frontends/horus3a*
-MEDIA DRIVERS FOR CXD2841ER
+MEDIA DRIVERS FOR LNBH25
M: Sergey Kozlov <serjk@netup.ru>
M: Abylay Ospan <aospan@netup.ru>
L: linux-media@vger.kernel.org
@@ -8182,19 +8494,17 @@ W: https://linuxtv.org
W: http://netup.tv/
T: git git://linuxtv.org/media_tree.git
S: Supported
-F: drivers/media/dvb-frontends/cxd2841er*
+F: drivers/media/dvb-frontends/lnbh25*
-MEDIA DRIVERS FOR HORUS3A
-M: Sergey Kozlov <serjk@netup.ru>
-M: Abylay Ospan <aospan@netup.ru>
+MEDIA DRIVERS FOR MXL5XX TUNER DEMODULATORS
+M: Daniel Scheller <d.scheller.oss@gmail.com>
L: linux-media@vger.kernel.org
W: https://linuxtv.org
-W: http://netup.tv/
T: git git://linuxtv.org/media_tree.git
-S: Supported
-F: drivers/media/dvb-frontends/horus3a*
+S: Maintained
+F: drivers/media/dvb-frontends/mxl5xx*
-MEDIA DRIVERS FOR LNBH25
+MEDIA DRIVERS FOR NETUP PCI UNIVERSAL DVB devices
M: Sergey Kozlov <serjk@netup.ru>
M: Abylay Ospan <aospan@netup.ru>
L: linux-media@vger.kernel.org
@@ -8202,17 +8512,69 @@ W: https://linuxtv.org
W: http://netup.tv/
T: git git://linuxtv.org/media_tree.git
S: Supported
-F: drivers/media/dvb-frontends/lnbh25*
+F: drivers/media/pci/netup_unidvb/*
-MEDIA DRIVERS FOR NETUP PCI UNIVERSAL DVB devices
-M: Sergey Kozlov <serjk@netup.ru>
-M: Abylay Ospan <aospan@netup.ru>
+MEDIA DRIVERS FOR RENESAS - DRIF
+M: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>
L: linux-media@vger.kernel.org
-W: https://linuxtv.org
-W: http://netup.tv/
+L: linux-renesas-soc@vger.kernel.org
T: git git://linuxtv.org/media_tree.git
S: Supported
-F: drivers/media/pci/netup_unidvb/*
+F: Documentation/devicetree/bindings/media/renesas,drif.txt
+F: drivers/media/platform/rcar_drif.c
+
+MEDIA DRIVERS FOR RENESAS - FCP
+M: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+L: linux-media@vger.kernel.org
+L: linux-renesas-soc@vger.kernel.org
+T: git git://linuxtv.org/media_tree.git
+S: Supported
+F: Documentation/devicetree/bindings/media/renesas,fcp.txt
+F: drivers/media/platform/rcar-fcp.c
+F: include/media/rcar-fcp.h
+
+MEDIA DRIVERS FOR RENESAS - FDP1
+M: Kieran Bingham <kieran@bingham.xyz>
+L: linux-media@vger.kernel.org
+L: linux-renesas-soc@vger.kernel.org
+T: git git://linuxtv.org/media_tree.git
+S: Supported
+F: Documentation/devicetree/bindings/media/renesas,fdp1.txt
+F: drivers/media/platform/rcar_fdp1.c
+
+MEDIA DRIVERS FOR RENESAS - VIN
+M: Niklas Söderlund <niklas.soderlund@ragnatech.se>
+L: linux-media@vger.kernel.org
+L: linux-renesas-soc@vger.kernel.org
+T: git git://linuxtv.org/media_tree.git
+S: Supported
+F: Documentation/devicetree/bindings/media/rcar_vin.txt
+F: drivers/media/platform/rcar-vin/
+
+MEDIA DRIVERS FOR RENESAS - VSP1
+M: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+L: linux-media@vger.kernel.org
+L: linux-renesas-soc@vger.kernel.org
+T: git git://linuxtv.org/media_tree.git
+S: Supported
+F: Documentation/devicetree/bindings/media/renesas,vsp1.txt
+F: drivers/media/platform/vsp1/
+
+MEDIA DRIVERS FOR ST STV0910 DEMODULATOR ICs
+M: Daniel Scheller <d.scheller.oss@gmail.com>
+L: linux-media@vger.kernel.org
+W: https://linuxtv.org
+T: git git://linuxtv.org/media_tree.git
+S: Maintained
+F: drivers/media/dvb-frontends/stv0910*
+
+MEDIA DRIVERS FOR ST STV6111 TUNER ICs
+M: Daniel Scheller <d.scheller.oss@gmail.com>
+L: linux-media@vger.kernel.org
+W: https://linuxtv.org
+T: git git://linuxtv.org/media_tree.git
+S: Maintained
+F: drivers/media/dvb-frontends/stv6111*
MEDIA INPUT INFRASTRUCTURE (V4L/DVB)
M: Mauro Carvalho Chehab <mchehab@s-opensource.com>
@@ -8237,9 +8599,22 @@ F: include/uapi/linux/meye.h
F: include/uapi/linux/ivtv*
F: include/uapi/linux/uvcvideo.h
+MEDIATEK CIR DRIVER
+M: Sean Wang <sean.wang@mediatek.com>
+S: Maintained
+F: drivers/media/rc/mtk-cir.c
+
+MEDIATEK PMIC LED DRIVER
+M: Sean Wang <sean.wang@mediatek.com>
+S: Maintained
+F: drivers/leds/leds-mt6323.c
+F: Documentation/devicetree/bindings/leds/leds-mt6323.txt
+
MEDIATEK ETHERNET DRIVER
M: Felix Fietkau <nbd@openwrt.org>
-M: John Crispin <blogic@openwrt.org>
+M: John Crispin <john@phrozen.org>
+M: Sean Wang <sean.wang@mediatek.com>
+M: Nelson Chang <nelson.chang@mediatek.com>
L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/ethernet/mediatek/
@@ -8251,15 +8626,6 @@ S: Supported
F: drivers/media/platform/mtk-jpeg/
F: Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.txt
-MEDIATEK MEDIA DRIVER
-M: Tiffany Lin <tiffany.lin@mediatek.com>
-M: Andrew-CT Chen <andrew-ct.chen@mediatek.com>
-S: Supported
-F: drivers/media/platform/mtk-vcodec/
-F: drivers/media/platform/mtk-vpu/
-F: Documentation/devicetree/bindings/media/mediatek-vcodec.txt
-F: Documentation/devicetree/bindings/media/mediatek-vpu.txt
-
MEDIATEK MDP DRIVER
M: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
M: Houlong Wei <houlong.wei@mediatek.com>
@@ -8269,12 +8635,34 @@ F: drivers/media/platform/mtk-mdp/
F: drivers/media/platform/mtk-vpu/
F: Documentation/devicetree/bindings/media/mediatek-mdp.txt
+MEDIATEK MEDIA DRIVER
+M: Tiffany Lin <tiffany.lin@mediatek.com>
+M: Andrew-CT Chen <andrew-ct.chen@mediatek.com>
+S: Supported
+F: drivers/media/platform/mtk-vcodec/
+F: drivers/media/platform/mtk-vpu/
+F: Documentation/devicetree/bindings/media/mediatek-vcodec.txt
+F: Documentation/devicetree/bindings/media/mediatek-vpu.txt
+
MEDIATEK MT7601U WIRELESS LAN DRIVER
M: Jakub Kicinski <kubakici@wp.pl>
L: linux-wireless@vger.kernel.org
S: Maintained
F: drivers/net/wireless/mediatek/mt7601u/
+MEDIATEK RANDOM NUMBER GENERATOR SUPPORT
+M: Sean Wang <sean.wang@mediatek.com>
+S: Maintained
+F: drivers/char/hw_random/mtk-rng.c
+
+MEDIATEK USB3 DRD IP DRIVER
+M: Chunfeng Yun <chunfeng.yun@mediatek.com>
+L: linux-usb@vger.kernel.org (moderated for non-subscribers)
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+L: linux-mediatek@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+F: drivers/usb/mtu3/
+
MEGACHIPS STDPXXXX-GE-B850V3-FW LVDS/DP++ BRIDGES
M: Peter Senna Tschudin <peter.senna@collabora.com>
M: Martin Donnelly <martin.donnelly@ge.com>
@@ -8295,6 +8683,13 @@ F: Documentation/scsi/megaraid.txt
F: drivers/scsi/megaraid.*
F: drivers/scsi/megaraid/
+MELEXIS MLX90614 DRIVER
+M: Crt Mori <cmo@melexis.com>
+L: linux-iio@vger.kernel.org
+W: http://www.melexis.com
+S: Supported
+F: drivers/iio/temperature/mlx90614.c
+
MELFAS MIP4 TOUCHSCREEN DRIVER
M: Sangwon Jee <jeesw@melfas.com>
W: http://www.melfas.com
@@ -8318,6 +8713,26 @@ W: http://www.mellanox.com
Q: http://patchwork.ozlabs.org/project/netdev/list/
F: drivers/net/ethernet/mellanox/mlx5/core/en_*
+MELLANOX ETHERNET INNOVA DRIVER
+M: Ilan Tayari <ilant@mellanox.com>
+R: Boris Pismenny <borisp@mellanox.com>
+L: netdev@vger.kernel.org
+S: Supported
+W: http://www.mellanox.com
+Q: http://patchwork.ozlabs.org/project/netdev/list/
+F: drivers/net/ethernet/mellanox/mlx5/core/fpga/*
+F: include/linux/mlx5/mlx5_ifc_fpga.h
+
+MELLANOX ETHERNET INNOVA IPSEC DRIVER
+M: Ilan Tayari <ilant@mellanox.com>
+R: Boris Pismenny <borisp@mellanox.com>
+L: netdev@vger.kernel.org
+S: Supported
+W: http://www.mellanox.com
+Q: http://patchwork.ozlabs.org/project/netdev/list/
+F: drivers/net/ethernet/mellanox/mlx5/core/en_ipsec/*
+F: drivers/net/ethernet/mellanox/mlx5/core/ipsec*
+
MELLANOX ETHERNET SWITCH DRIVERS
M: Jiri Pirko <jiri@mellanox.com>
M: Ido Schimmel <idosch@mellanox.com>
@@ -8327,6 +8742,64 @@ W: http://www.mellanox.com
Q: http://patchwork.ozlabs.org/project/netdev/list/
F: drivers/net/ethernet/mellanox/mlxsw/
+MELLANOX FIRMWARE FLASH LIBRARY (mlxfw)
+M: Yotam Gigi <yotamg@mellanox.com>
+L: netdev@vger.kernel.org
+S: Supported
+W: http://www.mellanox.com
+Q: http://patchwork.ozlabs.org/project/netdev/list/
+F: drivers/net/ethernet/mellanox/mlxfw/
+
+MELLANOX MLX CPLD HOTPLUG DRIVER
+M: Vadim Pasternak <vadimp@mellanox.com>
+L: platform-driver-x86@vger.kernel.org
+S: Supported
+F: drivers/platform/x86/mlxcpld-hotplug.c
+F: include/linux/platform_data/mlxcpld-hotplug.h
+
+MELLANOX MLX4 core VPI driver
+M: Tariq Toukan <tariqt@mellanox.com>
+L: netdev@vger.kernel.org
+L: linux-rdma@vger.kernel.org
+W: http://www.mellanox.com
+Q: http://patchwork.ozlabs.org/project/netdev/list/
+S: Supported
+F: drivers/net/ethernet/mellanox/mlx4/
+F: include/linux/mlx4/
+
+MELLANOX MLX4 IB driver
+M: Yishai Hadas <yishaih@mellanox.com>
+L: linux-rdma@vger.kernel.org
+W: http://www.mellanox.com
+Q: http://patchwork.kernel.org/project/linux-rdma/list/
+S: Supported
+F: drivers/infiniband/hw/mlx4/
+F: include/linux/mlx4/
+F: include/uapi/rdma/mlx4-abi.h
+
+MELLANOX MLX5 core VPI driver
+M: Saeed Mahameed <saeedm@mellanox.com>
+M: Matan Barak <matanb@mellanox.com>
+M: Leon Romanovsky <leonro@mellanox.com>
+L: netdev@vger.kernel.org
+L: linux-rdma@vger.kernel.org
+W: http://www.mellanox.com
+Q: http://patchwork.ozlabs.org/project/netdev/list/
+S: Supported
+F: drivers/net/ethernet/mellanox/mlx5/core/
+F: include/linux/mlx5/
+
+MELLANOX MLX5 IB driver
+M: Matan Barak <matanb@mellanox.com>
+M: Leon Romanovsky <leonro@mellanox.com>
+L: linux-rdma@vger.kernel.org
+W: http://www.mellanox.com
+Q: http://patchwork.kernel.org/project/linux-rdma/list/
+S: Supported
+F: drivers/infiniband/hw/mlx5/
+F: include/linux/mlx5/
+F: include/uapi/rdma/mlx5-abi.h
+
MELLANOX MLXCPLD I2C AND MUX DRIVER
M: Vadim Pasternak <vadimp@mellanox.com>
M: Michael Shych <michaelsh@mellanox.com>
@@ -8344,33 +8817,17 @@ F: drivers/leds/leds-mlxcpld.c
F: Documentation/leds/leds-mlxcpld.txt
MELLANOX PLATFORM DRIVER
-M: Vadim Pasternak <vadimp@mellanox.com>
-L: platform-driver-x86@vger.kernel.org
-S: Supported
-F: drivers/platform/x86/mlx-platform.c
-
-MELLANOX MLX CPLD HOTPLUG DRIVER
M: Vadim Pasternak <vadimp@mellanox.com>
L: platform-driver-x86@vger.kernel.org
S: Supported
-F: drivers/platform/x86/mlxcpld-hotplug.c
-F: include/linux/platform_data/mlxcpld-hotplug.h
-
-SOFT-ROCE DRIVER (rxe)
-M: Moni Shoua <monis@mellanox.com>
-L: linux-rdma@vger.kernel.org
-S: Supported
-W: https://github.com/SoftRoCE/rxe-dev/wiki/rxe-dev:-Home
-Q: http://patchwork.kernel.org/project/linux-rdma/list/
-F: drivers/infiniband/sw/rxe/
-F: include/uapi/rdma/rdma_user_rxe.h
+F: drivers/platform/x86/mlx-platform.c
MEMBARRIER SUPPORT
M: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
M: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
L: linux-kernel@vger.kernel.org
S: Supported
-F: kernel/membarrier.c
+F: kernel/sched/membarrier.c
F: include/uapi/linux/membarrier.h
MEMORY MANAGEMENT
@@ -8424,8 +8881,18 @@ F: drivers/leds/leds-menf21bmc.c
F: drivers/hwmon/menf21bmc_hwmon.c
F: Documentation/hwmon/menf21bmc
+MESON AO CEC DRIVER FOR AMLOGIC SOCS
+M: Neil Armstrong <narmstrong@baylibre.com>
+L: linux-media@lists.freedesktop.org
+L: linux-amlogic@lists.infradead.org
+W: http://linux-meson.com/
+S: Supported
+F: drivers/media/platform/meson/ao-cec.c
+F: Documentation/devicetree/bindings/media/meson-ao-cec.txt
+T: git git://linuxtv.org/media_tree.git
+
METAG ARCHITECTURE
-M: James Hogan <james.hogan@imgtec.com>
+M: James Hogan <jhogan@kernel.org>
L: linux-metag@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag.git
S: Odd Fixes
@@ -8445,7 +8912,7 @@ T: git git://git.monstr.eu/linux-2.6-microblaze.git
S: Supported
F: arch/microblaze/
-MICROCHIP / ATMEL AT91 / AT32 SERIAL DRIVER
+MICROCHIP / ATMEL AT91 SERIAL DRIVER
M: Richard Genoud <richard.genoud@gmail.com>
S: Maintained
F: drivers/tty/serial/atmel_serial.c
@@ -8460,6 +8927,12 @@ F: drivers/dma/at_hdmac.c
F: drivers/dma/at_hdmac_regs.h
F: include/linux/platform_data/dma-atmel.h
+MICROCHIP / ATMEL ECC DRIVER
+M: Tudor Ambarus <tudor.ambarus@microchip.com>
+L: linux-crypto@vger.kernel.org
+S: Maintained
+F: drivers/crypto/atmel-ecc.*
+
MICROCHIP / ATMEL ISC DRIVER
M: Songjun Wu <songjun.wu@microchip.com>
L: linux-media@vger.kernel.org
@@ -8468,6 +8941,16 @@ F: drivers/media/platform/atmel/atmel-isc.c
F: drivers/media/platform/atmel/atmel-isc-regs.h
F: devicetree/bindings/media/atmel-isc.txt
+MICROCHIP KSZ SERIES ETHERNET SWITCH DRIVER
+M: Woojung Huh <Woojung.Huh@microchip.com>
+M: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>
+L: netdev@vger.kernel.org
+S: Maintained
+F: net/dsa/tag_ksz.c
+F: drivers/net/dsa/microchip/*
+F: include/linux/platform_data/microchip-ksz.h
+F: Documentation/devicetree/bindings/net/dsa/ksz.txt
+
MICROCHIP USB251XB DRIVER
M: Richard Leitner <richard.leitner@skidata.com>
L: linux-usb@vger.kernel.org
@@ -8475,6 +8958,18 @@ S: Maintained
F: drivers/usb/misc/usb251xb.c
F: Documentation/devicetree/bindings/usb/usb251xb.txt
+MICROSEMI SMART ARRAY SMARTPQI DRIVER (smartpqi)
+M: Don Brace <don.brace@microsemi.com>
+L: esc.storagedev@microsemi.com
+L: linux-scsi@vger.kernel.org
+S: Supported
+F: drivers/scsi/smartpqi/smartpqi*.[ch]
+F: drivers/scsi/smartpqi/Kconfig
+F: drivers/scsi/smartpqi/Makefile
+F: include/linux/cciss*.h
+F: include/uapi/linux/cciss*.h
+F: Documentation/scsi/smartpqi.txt
+
MICROSOFT SURFACE PRO 3 BUTTON DRIVER
M: Chen Yu <yu.c.chen@intel.com>
L: platform-driver-x86@vger.kernel.org
@@ -8497,6 +8992,23 @@ F: Documentation/devicetree/bindings/mips/
F: Documentation/mips/
F: arch/mips/
+MIPS BOSTON DEVELOPMENT BOARD
+M: Paul Burton <paul.burton@imgtec.com>
+L: linux-mips@linux-mips.org
+S: Maintained
+F: Documentation/devicetree/bindings/clock/img,boston-clock.txt
+F: arch/mips/boot/dts/img/boston.dts
+F: arch/mips/configs/generic/board-boston.config
+F: drivers/clk/imgtec/clk-boston.c
+F: include/dt-bindings/clock/boston-clock.h
+
+MIPS GENERIC PLATFORM
+M: Paul Burton <paul.burton@imgtec.com>
+L: linux-mips@linux-mips.org
+S: Supported
+F: arch/mips/generic/
+F: arch/mips/tools/generic-board-config.sh
+
MIPS/LOONGSON1 ARCHITECTURE
M: Keguang Zhang <keguang.zhang@gmail.com>
L: linux-mips@linux-mips.org
@@ -8506,6 +9018,13 @@ F: arch/mips/include/asm/mach-loongson32/
F: drivers/*/*loongson1*
F: drivers/*/*/*loongson1*
+MIPS RINT INSTRUCTION EMULATION
+M: Aleksandar Markovic <aleksandar.markovic@imgtec.com>
+L: linux-mips@linux-mips.org
+S: Supported
+F: arch/mips/math-emu/sp_rint.c
+F: arch/mips/math-emu/dp_rint.c
+
MIROSOUND PCM20 FM RADIO RECEIVER DRIVER
M: Hans Verkuil <hverkuil@xs4all.nl>
L: linux-media@vger.kernel.org
@@ -8514,67 +9033,15 @@ W: https://linuxtv.org
S: Odd Fixes
F: drivers/media/radio/radio-miropcm20*
-MELLANOX MLX4 core VPI driver
-M: Tariq Toukan <tariqt@mellanox.com>
-L: netdev@vger.kernel.org
-L: linux-rdma@vger.kernel.org
-W: http://www.mellanox.com
-Q: http://patchwork.ozlabs.org/project/netdev/list/
-S: Supported
-F: drivers/net/ethernet/mellanox/mlx4/
-F: include/linux/mlx4/
-
-MELLANOX MLX4 IB driver
-M: Yishai Hadas <yishaih@mellanox.com>
-L: linux-rdma@vger.kernel.org
-W: http://www.mellanox.com
-Q: http://patchwork.kernel.org/project/linux-rdma/list/
-S: Supported
-F: drivers/infiniband/hw/mlx4/
-F: include/linux/mlx4/
-F: include/uapi/rdma/mlx4-abi.h
-
-MELLANOX MLX5 core VPI driver
-M: Saeed Mahameed <saeedm@mellanox.com>
-M: Matan Barak <matanb@mellanox.com>
-M: Leon Romanovsky <leonro@mellanox.com>
-L: netdev@vger.kernel.org
-L: linux-rdma@vger.kernel.org
-W: http://www.mellanox.com
-Q: http://patchwork.ozlabs.org/project/netdev/list/
-S: Supported
-F: drivers/net/ethernet/mellanox/mlx5/core/
-F: include/linux/mlx5/
-
-MELLANOX MLX5 IB driver
-M: Matan Barak <matanb@mellanox.com>
-M: Leon Romanovsky <leonro@mellanox.com>
-L: linux-rdma@vger.kernel.org
-W: http://www.mellanox.com
-Q: http://patchwork.kernel.org/project/linux-rdma/list/
-S: Supported
-F: drivers/infiniband/hw/mlx5/
-F: include/linux/mlx5/
-F: include/uapi/rdma/mlx5-abi.h
-
-MELEXIS MLX90614 DRIVER
-M: Crt Mori <cmo@melexis.com>
-L: linux-iio@vger.kernel.org
-W: http://www.melexis.com
-S: Supported
-F: drivers/iio/temperature/mlx90614.c
-
-MICROSEMI SMART ARRAY SMARTPQI DRIVER (smartpqi)
-M: Don Brace <don.brace@microsemi.com>
-L: esc.storagedev@microsemi.com
-L: linux-scsi@vger.kernel.org
-S: Supported
-F: drivers/scsi/smartpqi/smartpqi*.[ch]
-F: drivers/scsi/smartpqi/Kconfig
-F: drivers/scsi/smartpqi/Makefile
-F: include/linux/cciss*.h
-F: include/uapi/linux/cciss*.h
-F: Documentation/scsi/smartpqi.txt
+MMP SUPPORT
+M: Eric Miao <eric.y.miao@gmail.com>
+M: Haojian Zhuang <haojian.zhuang@gmail.com>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+T: git git://github.com/hzhuang1/linux.git
+T: git git://git.linaro.org/people/ycmiao/pxa-linux.git
+S: Maintained
+F: arch/arm/boot/dts/mmp*
+F: arch/arm/mach-mmp/
MN88472 MEDIA DRIVER
M: Antti Palosaari <crope@iki.fi>
@@ -8708,6 +9175,11 @@ F: drivers/mfd/
F: include/linux/mfd/
F: include/dt-bindings/mfd/
+MULTIMEDIA CARD (MMC) ETC. OVER SPI
+S: Orphan
+F: drivers/mmc/host/mmc_spi.c
+F: include/linux/spi/mmc_spi.h
+
MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM
M: Ulf Hansson <ulf.hansson@linaro.org>
L: linux-mmc@vger.kernel.org
@@ -8718,10 +9190,14 @@ F: drivers/mmc/
F: include/linux/mmc/
F: include/uapi/linux/mmc/
-MULTIMEDIA CARD (MMC) ETC. OVER SPI
-S: Orphan
-F: drivers/mmc/host/mmc_spi.c
-F: include/linux/spi/mmc_spi.h
+MULTIPLEXER SUBSYSTEM
+M: Peter Rosin <peda@axentia.se>
+S: Maintained
+F: Documentation/ABI/testing/mux/sysfs-class-mux*
+F: Documentation/devicetree/bindings/mux/
+F: include/linux/dt-bindings/mux/
+F: include/linux/mux/
+F: drivers/mux/
MULTISOUND SOUND DRIVER
M: Andrew Veliath <andrewtv@usa.net>
@@ -8774,11 +9250,7 @@ T: git git://git.infradead.org/linux-mtd.git nand/fixes
T: git git://git.infradead.org/l2-mtd.git nand/next
S: Maintained
F: drivers/mtd/nand/
-F: include/linux/mtd/nand*.h
-
-NATSEMI ETHERNET DRIVER (DP8381x)
-S: Orphan
-F: drivers/net/ethernet/natsemi/natsemi.c
+F: include/linux/mtd/*nand*.h
NATIVE INSTRUMENTS USB SOUND INTERFACE DRIVER
M: Daniel Mack <zonque@gmail.com>
@@ -8787,6 +9259,10 @@ L: alsa-devel@alsa-project.org (moderated for non-subscribers)
W: http://www.native-instruments.com
F: sound/usb/caiaq/
+NATSEMI ETHERNET DRIVER (DP8381x)
+S: Orphan
+F: drivers/net/ethernet/natsemi/natsemi.c
+
NCP FILESYSTEM
M: Petr Vandrovec <petr@vandrovec.name>
S: Odd Fixes
@@ -8866,15 +9342,6 @@ F: net/*/netfilter/
F: net/netfilter/
F: net/bridge/br_netfilter*.c
-NETLABEL
-M: Paul Moore <paul@paul-moore.com>
-W: http://netlabel.sf.net
-L: netdev@vger.kernel.org
-S: Maintained
-F: Documentation/netlabel/
-F: include/net/netlabel.h
-F: net/netlabel/
-
NETROM NETWORK LAYER
M: Ralf Baechle <ralf@linux-mips.org>
L: linux-hams@vger.kernel.org
@@ -8894,7 +9361,7 @@ NETWORK BLOCK DEVICE (NBD)
M: Josef Bacik <jbacik@fb.com>
S: Maintained
L: linux-block@vger.kernel.org
-L: nbd-general@lists.sourceforge.net
+L: nbd@other.debian.org
F: Documentation/blockdev/nbd.txt
F: drivers/block/nbd.c
F: include/uapi/linux/nbd.h
@@ -8906,6 +9373,35 @@ S: Maintained
W: https://fedorahosted.org/dropwatch/
F: net/core/drop_monitor.c
+NETWORKING DRIVERS
+L: netdev@vger.kernel.org
+W: http://www.linuxfoundation.org/en/Net
+Q: http://patchwork.ozlabs.org/project/netdev/list/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
+S: Odd Fixes
+F: Documentation/devicetree/bindings/net/
+F: drivers/net/
+F: include/linux/if_*
+F: include/linux/netdevice.h
+F: include/linux/etherdevice.h
+F: include/linux/fcdevice.h
+F: include/linux/fddidevice.h
+F: include/linux/hippidevice.h
+F: include/linux/inetdevice.h
+F: include/uapi/linux/if_*
+F: include/uapi/linux/netdevice.h
+
+NETWORKING DRIVERS (WIRELESS)
+M: Kalle Valo <kvalo@codeaurora.org>
+L: linux-wireless@vger.kernel.org
+Q: http://patchwork.kernel.org/project/linux-wireless/list/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next.git
+S: Maintained
+F: Documentation/devicetree/bindings/net/wireless/
+F: drivers/net/wireless/
+
NETWORKING [DSA]
M: Andrew Lunn <andrew@lunn.ch>
M: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
@@ -8937,20 +9433,6 @@ F: tools/net/
F: tools/testing/selftests/net/
F: lib/random32.c
-NETWORKING [IPv4/IPv6]
-M: "David S. Miller" <davem@davemloft.net>
-M: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
-M: James Morris <jmorris@namei.org>
-M: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
-M: Patrick McHardy <kaber@trash.net>
-L: netdev@vger.kernel.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
-S: Maintained
-F: net/ipv4/
-F: net/ipv6/
-F: include/net/ip*
-F: arch/x86/net/*
-
NETWORKING [IPSEC]
M: Steffen Klassert <steffen.klassert@secunet.com>
M: Herbert Xu <herbert@gondor.apana.org.au>
@@ -8975,43 +9457,49 @@ F: net/ipv6/ip6_vti.c
F: include/uapi/linux/xfrm.h
F: include/net/xfrm.h
-NETWORKING [LABELED] (NetLabel, CIPSO, Labeled IPsec, SECMARK)
-M: Paul Moore <paul@paul-moore.com>
+NETWORKING [IPv4/IPv6]
+M: "David S. Miller" <davem@davemloft.net>
+M: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
+M: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
L: netdev@vger.kernel.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
S: Maintained
+F: net/ipv4/
+F: net/ipv6/
+F: include/net/ip*
+F: arch/x86/net/*
-NETWORKING [WIRELESS]
-L: linux-wireless@vger.kernel.org
-Q: http://patchwork.kernel.org/project/linux-wireless/list/
-
-NETWORKING DRIVERS
+NETWORKING [LABELED] (NetLabel, Labeled IPsec, SECMARK)
+M: Paul Moore <paul@paul-moore.com>
+W: https://github.com/netlabel
L: netdev@vger.kernel.org
-W: http://www.linuxfoundation.org/en/Net
-Q: http://patchwork.ozlabs.org/project/netdev/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
-S: Odd Fixes
-F: Documentation/devicetree/bindings/net/
-F: drivers/net/
-F: include/linux/if_*
-F: include/linux/netdevice.h
-F: include/linux/etherdevice.h
-F: include/linux/fcdevice.h
-F: include/linux/fddidevice.h
-F: include/linux/hippidevice.h
-F: include/linux/inetdevice.h
-F: include/uapi/linux/if_*
-F: include/uapi/linux/netdevice.h
+L: linux-security-module@vger.kernel.org
+S: Maintained
+F: Documentation/netlabel/
+F: include/net/calipso.h
+F: include/net/cipso_ipv4.h
+F: include/net/netlabel.h
+F: include/uapi/linux/netfilter/xt_SECMARK.h
+F: include/uapi/linux/netfilter/xt_CONNSECMARK.h
+F: net/netlabel/
+F: net/ipv4/cipso_ipv4.c
+F: net/ipv6/calipso.c
+F: net/netfilter/xt_CONNSECMARK.c
+F: net/netfilter/xt_SECMARK.c
+
+NETWORKING [TLS]
+M: Ilya Lesokhin <ilyal@mellanox.com>
+M: Aviad Yehezkel <aviadye@mellanox.com>
+M: Dave Watson <davejwatson@fb.com>
+L: netdev@vger.kernel.org
+S: Maintained
+F: net/tls/*
+F: include/uapi/linux/tls.h
+F: include/net/tls.h
-NETWORKING DRIVERS (WIRELESS)
-M: Kalle Valo <kvalo@codeaurora.org>
+NETWORKING [WIRELESS]
L: linux-wireless@vger.kernel.org
Q: http://patchwork.kernel.org/project/linux-wireless/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers.git
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next.git
-S: Maintained
-F: Documentation/devicetree/bindings/net/wireless/
-F: drivers/net/wireless/
NETXEN (1/10) GbE SUPPORT
M: Manish Chopra <manish.chopra@cavium.com>
@@ -9032,9 +9520,6 @@ F: include/uapi/linux/nfc.h
F: drivers/nfc/
F: include/linux/platform_data/nfcmrvl.h
F: include/linux/platform_data/nxp-nci.h
-F: include/linux/platform_data/pn544.h
-F: include/linux/platform_data/st21nfca.h
-F: include/linux/platform_data/st-nci.h
F: Documentation/devicetree/bindings/net/nfc/
NFS, SUNRPC, AND LOCKD CLIENTS
@@ -9089,13 +9574,16 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2.git
S: Maintained
F: arch/nios2/
-NOKIA N900 CAMERA SUPPORT (ET8EK8 SENSOR, AD5820 FOCUS)
-M: Pavel Machek <pavel@ucw.cz>
-M: Sakari Ailus <sakari.ailus@iki.fi>
-L: linux-media@vger.kernel.org
+NOHZ, DYNTICKS SUPPORT
+M: Frederic Weisbecker <fweisbec@gmail.com>
+M: Thomas Gleixner <tglx@linutronix.de>
+M: Ingo Molnar <mingo@kernel.org>
+L: linux-kernel@vger.kernel.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/nohz
S: Maintained
-F: drivers/media/i2c/et8ek8
-F: drivers/media/i2c/ad5820.c
+F: kernel/time/tick*.*
+F: include/linux/tick.h
+F: include/linux/sched/nohz.h
NOKIA N900 CAMERA SUPPORT (ET8EK8 SENSOR, AD5820 FOCUS)
M: Pavel Machek <pavel@ucw.cz>
@@ -9116,6 +9604,12 @@ F: drivers/power/supply/bq27xxx_battery_i2c.c
F: drivers/power/supply/isp1704_charger.c
F: drivers/power/supply/rx51_battery.c
+NTB AMD DRIVER
+M: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
+L: linux-ntb@googlegroups.com
+S: Supported
+F: drivers/ntb/hw/amd/
+
NTB DRIVER CORE
M: Jon Mason <jdmason@kudzu.us>
M: Dave Jiang <dave.jiang@intel.com>
@@ -9130,6 +9624,12 @@ F: include/linux/ntb.h
F: include/linux/ntb_transport.h
F: tools/testing/selftests/ntb/
+NTB IDT DRIVER
+M: Serge Semin <fancer.lancer@gmail.com>
+L: linux-ntb@googlegroups.com
+S: Supported
+F: drivers/ntb/hw/idt/
+
NTB INTEL DRIVER
M: Jon Mason <jdmason@kudzu.us>
M: Dave Jiang <dave.jiang@intel.com>
@@ -9139,12 +9639,6 @@ W: https://github.com/jonmason/ntb/wiki
T: git git://github.com/jonmason/ntb.git
F: drivers/ntb/hw/intel/
-NTB AMD DRIVER
-M: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
-L: linux-ntb@googlegroups.com
-S: Supported
-F: drivers/ntb/hw/amd/
-
NTFS FILESYSTEM
M: Anton Altaparmakov <anton@tuxera.com>
L: linux-ntfs-dev@lists.sourceforge.net
@@ -9174,15 +9668,6 @@ F: drivers/nvme/host/
F: include/linux/nvme.h
F: include/uapi/linux/nvme_ioctl.h
-NVM EXPRESS TARGET DRIVER
-M: Christoph Hellwig <hch@lst.de>
-M: Sagi Grimberg <sagi@grimberg.me>
-L: linux-nvme@lists.infradead.org
-T: git://git.infradead.org/nvme.git
-W: http://git.infradead.org/nvme.git
-S: Supported
-F: drivers/nvme/target/
-
NVM EXPRESS FC TRANSPORT DRIVERS
M: James Smart <james.smart@broadcom.com>
L: linux-nvme@lists.infradead.org
@@ -9193,21 +9678,24 @@ F: drivers/nvme/host/fc.c
F: drivers/nvme/target/fc.c
F: drivers/nvme/target/fcloop.c
+NVM EXPRESS TARGET DRIVER
+M: Christoph Hellwig <hch@lst.de>
+M: Sagi Grimberg <sagi@grimberg.me>
+L: linux-nvme@lists.infradead.org
+T: git://git.infradead.org/nvme.git
+W: http://git.infradead.org/nvme.git
+S: Supported
+F: drivers/nvme/target/
+
NVMEM FRAMEWORK
M: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
S: Maintained
F: drivers/nvmem/
F: Documentation/devicetree/bindings/nvmem/
+F: Documentation/ABI/stable/sysfs-bus-nvmem
F: include/linux/nvmem-consumer.h
F: include/linux/nvmem-provider.h
-NXP-NCI NFC DRIVER
-M: Clément Perrochaud <clement.perrochaud@effinnov.com>
-R: Charles Gorand <charles.gorand@effinnov.com>
-L: linux-nfc@lists.01.org (moderated for non-subscribers)
-S: Supported
-F: drivers/nfc/nxp-nci
-
NXP TDA998X DRM DRIVER
M: Russell King <linux@armlinux.org.uk>
S: Supported
@@ -9222,55 +9710,31 @@ L: alsa-devel@alsa-project.org (moderated for non-subscribers)
S: Maintained
F: sound/soc/codecs/tfa9879*
+NXP-NCI NFC DRIVER
+M: Clément Perrochaud <clement.perrochaud@effinnov.com>
+R: Charles Gorand <charles.gorand@effinnov.com>
+L: linux-nfc@lists.01.org (moderated for non-subscribers)
+S: Supported
+F: drivers/nfc/nxp-nci
+
OBJTOOL
M: Josh Poimboeuf <jpoimboe@redhat.com>
S: Supported
F: tools/objtool/
-OMAP1 SUPPORT
-M: Aaro Koskinen <aaro.koskinen@iki.fi>
-M: Tony Lindgren <tony@atomide.com>
+OMAP AUDIO SUPPORT
+M: Peter Ujfalusi <peter.ujfalusi@ti.com>
+M: Jarkko Nikula <jarkko.nikula@bitmer.com>
+L: alsa-devel@alsa-project.org (moderated for non-subscribers)
L: linux-omap@vger.kernel.org
-Q: http://patchwork.kernel.org/project/linux-omap/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git
S: Maintained
-F: arch/arm/mach-omap1/
-F: arch/arm/plat-omap/
-F: arch/arm/configs/omap1_defconfig
-F: drivers/i2c/busses/i2c-omap.c
-F: include/linux/i2c-omap.h
+F: sound/soc/omap/
-OMAP2+ SUPPORT
-M: Tony Lindgren <tony@atomide.com>
+OMAP CLOCK FRAMEWORK SUPPORT
+M: Paul Walmsley <paul@pwsan.com>
L: linux-omap@vger.kernel.org
-W: http://www.muru.com/linux/omap/
-W: http://linux.omap.com/
-Q: http://patchwork.kernel.org/project/linux-omap/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git
S: Maintained
-F: arch/arm/mach-omap2/
-F: arch/arm/plat-omap/
-F: arch/arm/configs/omap2plus_defconfig
-F: drivers/i2c/busses/i2c-omap.c
-F: drivers/irqchip/irq-omap-intc.c
-F: drivers/mfd/*omap*.c
-F: drivers/mfd/menelaus.c
-F: drivers/mfd/palmas.c
-F: drivers/mfd/tps65217.c
-F: drivers/mfd/tps65218.c
-F: drivers/mfd/tps65910.c
-F: drivers/mfd/twl-core.[ch]
-F: drivers/mfd/twl4030*.c
-F: drivers/mfd/twl6030*.c
-F: drivers/mfd/twl6040*.c
-F: drivers/regulator/palmas-regulator*.c
-F: drivers/regulator/pbias-regulator.c
-F: drivers/regulator/tps65217-regulator.c
-F: drivers/regulator/tps65218-regulator.c
-F: drivers/regulator/tps65910-regulator.c
-F: drivers/regulator/twl-regulator.c
-F: drivers/regulator/twl6030-regulator.c
-F: include/linux/i2c-omap.h
+F: arch/arm/*omap*/*clock*
OMAP DEVICE TREE SUPPORT
M: Benoît Cousson <bcousson@baylibre.com>
@@ -9284,33 +9748,20 @@ F: arch/arm/boot/dts/*am4*
F: arch/arm/boot/dts/*am5*
F: arch/arm/boot/dts/*dra7*
-OMAP CLOCK FRAMEWORK SUPPORT
-M: Paul Walmsley <paul@pwsan.com>
-L: linux-omap@vger.kernel.org
-S: Maintained
-F: arch/arm/*omap*/*clock*
-
-OMAP POWER MANAGEMENT SUPPORT
-M: Kevin Hilman <khilman@kernel.org>
-L: linux-omap@vger.kernel.org
-S: Maintained
-F: arch/arm/*omap*/*pm*
-F: drivers/cpufreq/omap-cpufreq.c
-
-OMAP POWERDOMAIN SOC ADAPTATION LAYER SUPPORT
-M: Rajendra Nayak <rnayak@codeaurora.org>
-M: Paul Walmsley <paul@pwsan.com>
+OMAP DISPLAY SUBSYSTEM and FRAMEBUFFER SUPPORT (DSS2)
+M: Tomi Valkeinen <tomi.valkeinen@ti.com>
L: linux-omap@vger.kernel.org
+L: linux-fbdev@vger.kernel.org
S: Maintained
-F: arch/arm/mach-omap2/prm*
+F: drivers/video/fbdev/omap2/
+F: Documentation/arm/OMAP/DSS
-OMAP AUDIO SUPPORT
-M: Peter Ujfalusi <peter.ujfalusi@ti.com>
-M: Jarkko Nikula <jarkko.nikula@bitmer.com>
-L: alsa-devel@alsa-project.org (moderated for non-subscribers)
+OMAP FRAMEBUFFER SUPPORT
+M: Tomi Valkeinen <tomi.valkeinen@ti.com>
+L: linux-fbdev@vger.kernel.org
L: linux-omap@vger.kernel.org
S: Maintained
-F: sound/soc/omap/
+F: drivers/video/fbdev/omap/
OMAP GENERAL PURPOSE MEMORY CONTROLLER SUPPORT
M: Roger Quadros <rogerq@ti.com>
@@ -9320,20 +9771,14 @@ S: Maintained
F: drivers/memory/omap-gpmc.c
F: arch/arm/mach-omap2/*gpmc*
-OMAP FRAMEBUFFER SUPPORT
-M: Tomi Valkeinen <tomi.valkeinen@ti.com>
-L: linux-fbdev@vger.kernel.org
-L: linux-omap@vger.kernel.org
-S: Maintained
-F: drivers/video/fbdev/omap/
-
-OMAP DISPLAY SUBSYSTEM and FRAMEBUFFER SUPPORT (DSS2)
-M: Tomi Valkeinen <tomi.valkeinen@ti.com>
+OMAP GPIO DRIVER
+M: Grygorii Strashko <grygorii.strashko@ti.com>
+M: Santosh Shilimkar <ssantosh@kernel.org>
+M: Kevin Hilman <khilman@kernel.org>
L: linux-omap@vger.kernel.org
-L: linux-fbdev@vger.kernel.org
S: Maintained
-F: drivers/video/fbdev/omap2/
-F: Documentation/arm/OMAP/DSS
+F: Documentation/devicetree/bindings/gpio/gpio-omap.txt
+F: drivers/gpio/gpio-omap.c
OMAP HARDWARE SPINLOCK SUPPORT
M: Ohad Ben-Cohen <ohad@wizery.com>
@@ -9341,30 +9786,12 @@ L: linux-omap@vger.kernel.org
S: Maintained
F: drivers/hwspinlock/omap_hwspinlock.c
-OMAP MMC SUPPORT
-M: Jarkko Lavinen <jarkko.lavinen@nokia.com>
-L: linux-omap@vger.kernel.org
-S: Maintained
-F: drivers/mmc/host/omap.c
-
OMAP HS MMC SUPPORT
L: linux-mmc@vger.kernel.org
L: linux-omap@vger.kernel.org
S: Orphan
F: drivers/mmc/host/omap_hsmmc.c
-OMAP RANDOM NUMBER GENERATOR SUPPORT
-M: Deepak Saxena <dsaxena@plexity.net>
-S: Maintained
-F: drivers/char/hw_random/omap-rng.c
-
-OMAP HWMOD SUPPORT
-M: Benoît Cousson <bcousson@baylibre.com>
-M: Paul Walmsley <paul@pwsan.com>
-L: linux-omap@vger.kernel.org
-S: Maintained
-F: arch/arm/mach-omap2/omap_hwmod.*
-
OMAP HWMOD DATA
M: Paul Walmsley <paul@pwsan.com>
L: linux-omap@vger.kernel.org
@@ -9377,6 +9804,13 @@ L: linux-omap@vger.kernel.org
S: Maintained
F: arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+OMAP HWMOD SUPPORT
+M: Benoît Cousson <bcousson@baylibre.com>
+M: Paul Walmsley <paul@pwsan.com>
+L: linux-omap@vger.kernel.org
+S: Maintained
+F: arch/arm/mach-omap2/omap_hwmod.*
+
OMAP IMAGING SUBSYSTEM (OMAP3 ISP and OMAP4 ISS)
M: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
L: linux-media@vger.kernel.org
@@ -9385,6 +9819,31 @@ F: Documentation/devicetree/bindings/media/ti,omap3isp.txt
F: drivers/media/platform/omap3isp/
F: drivers/staging/media/omap4iss/
+OMAP MMC SUPPORT
+M: Jarkko Lavinen <jarkko.lavinen@nokia.com>
+L: linux-omap@vger.kernel.org
+S: Maintained
+F: drivers/mmc/host/omap.c
+
+OMAP POWER MANAGEMENT SUPPORT
+M: Kevin Hilman <khilman@kernel.org>
+L: linux-omap@vger.kernel.org
+S: Maintained
+F: arch/arm/*omap*/*pm*
+F: drivers/cpufreq/omap-cpufreq.c
+
+OMAP POWERDOMAIN SOC ADAPTATION LAYER SUPPORT
+M: Rajendra Nayak <rnayak@codeaurora.org>
+M: Paul Walmsley <paul@pwsan.com>
+L: linux-omap@vger.kernel.org
+S: Maintained
+F: arch/arm/mach-omap2/prm*
+
+OMAP RANDOM NUMBER GENERATOR SUPPORT
+M: Deepak Saxena <dsaxena@plexity.net>
+S: Maintained
+F: drivers/char/hw_random/omap-rng.c
+
OMAP USB SUPPORT
L: linux-usb@vger.kernel.org
L: linux-omap@vger.kernel.org
@@ -9392,21 +9851,63 @@ S: Orphan
F: drivers/usb/*/*omap*
F: arch/arm/*omap*/usb*
-OMAP GPIO DRIVER
-M: Grygorii Strashko <grygorii.strashko@ti.com>
-M: Santosh Shilimkar <ssantosh@kernel.org>
-M: Kevin Hilman <khilman@kernel.org>
-L: linux-omap@vger.kernel.org
-S: Maintained
-F: Documentation/devicetree/bindings/gpio/gpio-omap.txt
-F: drivers/gpio/gpio-omap.c
-
OMAP/NEWFLOW NANOBONE MACHINE SUPPORT
M: Mark Jackson <mpfj@newflow.co.uk>
L: linux-omap@vger.kernel.org
S: Maintained
F: arch/arm/boot/dts/am335x-nano.dts
+OMAP1 SUPPORT
+M: Aaro Koskinen <aaro.koskinen@iki.fi>
+M: Tony Lindgren <tony@atomide.com>
+L: linux-omap@vger.kernel.org
+Q: http://patchwork.kernel.org/project/linux-omap/list/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git
+S: Maintained
+F: arch/arm/mach-omap1/
+F: arch/arm/plat-omap/
+F: arch/arm/configs/omap1_defconfig
+F: drivers/i2c/busses/i2c-omap.c
+F: include/linux/i2c-omap.h
+
+OMAP2+ SUPPORT
+M: Tony Lindgren <tony@atomide.com>
+L: linux-omap@vger.kernel.org
+W: http://www.muru.com/linux/omap/
+W: http://linux.omap.com/
+Q: http://patchwork.kernel.org/project/linux-omap/list/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git
+S: Maintained
+F: arch/arm/mach-omap2/
+F: arch/arm/plat-omap/
+F: arch/arm/configs/omap2plus_defconfig
+F: drivers/i2c/busses/i2c-omap.c
+F: drivers/irqchip/irq-omap-intc.c
+F: drivers/mfd/*omap*.c
+F: drivers/mfd/menelaus.c
+F: drivers/mfd/palmas.c
+F: drivers/mfd/tps65217.c
+F: drivers/mfd/tps65218.c
+F: drivers/mfd/tps65910.c
+F: drivers/mfd/twl-core.[ch]
+F: drivers/mfd/twl4030*.c
+F: drivers/mfd/twl6030*.c
+F: drivers/mfd/twl6040*.c
+F: drivers/regulator/palmas-regulator*.c
+F: drivers/regulator/pbias-regulator.c
+F: drivers/regulator/tps65217-regulator.c
+F: drivers/regulator/tps65218-regulator.c
+F: drivers/regulator/tps65910-regulator.c
+F: drivers/regulator/twl-regulator.c
+F: drivers/regulator/twl6030-regulator.c
+F: include/linux/i2c-omap.h
+
+ONION OMEGA2+ BOARD
+M: Harvey Hunt <harveyhuntnexus@gmail.com>
+L: linux-mips@linux-mips.org
+S: Maintained
+F: arch/mips/boot/dts/ralink/omega2p.dts
+
OMFS FILESYSTEM
M: Bob Copeland <me@bobcopeland.com>
L: linux-karma-devel@lists.sourceforge.net
@@ -9426,8 +9927,22 @@ M: Harald Welte <laforge@gnumonks.org>
S: Maintained
F: drivers/char/pcmcia/cm4040_cs.*
+OMNIVISION OV13858 SENSOR DRIVER
+M: Sakari Ailus <sakari.ailus@linux.intel.com>
+L: linux-media@vger.kernel.org
+T: git git://linuxtv.org/media_tree.git
+S: Maintained
+F: drivers/media/i2c/ov13858.c
+
+OMNIVISION OV5640 SENSOR DRIVER
+M: Steve Longerbeam <slongerbeam@gmail.com>
+L: linux-media@vger.kernel.org
+T: git git://linuxtv.org/media_tree.git
+S: Maintained
+F: drivers/media/i2c/ov5640.c
+
OMNIVISION OV5647 SENSOR DRIVER
-M: Ramiro Oliveira <roliveir@synopsys.com>
+M: Luis Oliveira <lolivei@synopsys.com>
L: linux-media@vger.kernel.org
T: git git://linuxtv.org/media_tree.git
S: Maintained
@@ -9458,12 +9973,26 @@ F: drivers/scsi/osst.*
F: drivers/scsi/osst_*.h
F: drivers/scsi/st.h
-OPENCORES I2C BUS DRIVER
-M: Peter Korsgaard <jacmet@sunsite.dk>
-L: linux-i2c@vger.kernel.org
+OP-TEE DRIVER
+M: Jens Wiklander <jens.wiklander@linaro.org>
S: Maintained
-F: Documentation/i2c/busses/i2c-ocores
-F: drivers/i2c/busses/i2c-ocores.c
+F: drivers/tee/optee/
+
+OPA-VNIC DRIVER
+M: Dennis Dalessandro <dennis.dalessandro@intel.com>
+M: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
+L: linux-rdma@vger.kernel.org
+S: Supported
+F: drivers/infiniband/ulp/opa_vnic
+
+OPEN FIRMWARE AND DEVICE TREE OVERLAYS
+M: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
+L: devicetree@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/dynamic-resolution-notes.txt
+F: Documentation/devicetree/overlay-notes.txt
+F: drivers/of/overlay.c
+F: drivers/of/resolver.c
OPEN FIRMWARE AND FLATTENED DEVICE TREE
M: Rob Herring <robh+dt@kernel.org>
@@ -9475,6 +10004,7 @@ S: Maintained
F: drivers/of/
F: include/linux/of*.h
F: scripts/dtc/
+F: Documentation/ABI/testing/sysfs-firmware-ofw
OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
M: Rob Herring <robh+dt@kernel.org>
@@ -9487,14 +10017,12 @@ F: Documentation/devicetree/
F: arch/*/boot/dts/
F: include/dt-bindings/
-OPEN FIRMWARE AND DEVICE TREE OVERLAYS
-M: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
-L: devicetree@vger.kernel.org
+OPENCORES I2C BUS DRIVER
+M: Peter Korsgaard <jacmet@sunsite.dk>
+L: linux-i2c@vger.kernel.org
S: Maintained
-F: Documentation/devicetree/dynamic-resolution-notes.txt
-F: Documentation/devicetree/overlay-notes.txt
-F: drivers/of/overlay.c
-F: drivers/of/resolver.c
+F: Documentation/i2c/busses/i2c-ocores
+F: drivers/i2c/busses/i2c-ocores.c
OPENRISC ARCHITECTURE
M: Jonas Bonn <jonas@southpole.se>
@@ -9543,11 +10071,6 @@ F: arch/*/oprofile/
F: drivers/oprofile/
F: include/linux/oprofile.h
-OP-TEE DRIVER
-M: Jens Wiklander <jens.wiklander@linaro.org>
-S: Maintained
-F: drivers/tee/optee/
-
ORACLE CLUSTER FILESYSTEM 2 (OCFS2)
M: Mark Fasheh <mfasheh@versity.com>
M: Joel Becker <jlbec@evilplan.org>
@@ -9558,6 +10081,14 @@ F: Documentation/filesystems/ocfs2.txt
F: Documentation/filesystems/dlmfs.txt
F: fs/ocfs2/
+ORANGEFS FILESYSTEM
+M: Mike Marshall <hubcap@omnibond.com>
+L: pvfs2-developers@beowulf-underground.org (subscribers-only)
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux.git
+S: Supported
+F: fs/orangefs/
+F: Documentation/filesystems/orangefs.txt
+
ORINOCO DRIVER
L: linux-wireless@vger.kernel.org
W: http://wireless.kernel.org/en/users/Drivers/orinoco
@@ -9572,6 +10103,16 @@ F: drivers/scsi/osd/
F: include/scsi/osd_*
F: fs/exofs/
+OV2659 OMNIVISION SENSOR DRIVER
+M: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
+L: linux-media@vger.kernel.org
+W: https://linuxtv.org
+Q: http://patchwork.linuxtv.org/project/linux-media/list/
+T: git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git
+S: Maintained
+F: drivers/media/i2c/ov2659.c
+F: include/media/i2c/ov2659.h
+
OVERLAY FILESYSTEM
M: Miklos Szeredi <miklos@szeredi.hu>
L: linux-unionfs@vger.kernel.org
@@ -9580,14 +10121,6 @@ S: Supported
F: fs/overlayfs/
F: Documentation/filesystems/overlayfs.txt
-ORANGEFS FILESYSTEM
-M: Mike Marshall <hubcap@omnibond.com>
-L: pvfs2-developers@beowulf-underground.org (subscribers-only)
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux.git
-S: Supported
-F: fs/orangefs/
-F: Documentation/filesystems/orangefs.txt
-
P54 WIRELESS DRIVER
M: Christian Lamparter <chunkeey@googlemail.com>
L: linux-wireless@vger.kernel.org
@@ -9628,11 +10161,11 @@ F: Documentation/mn10300/
F: arch/mn10300/
PARALLEL LCD/KEYPAD PANEL DRIVER
-M: Willy Tarreau <willy@haproxy.com>
-M: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
-S: Odd Fixes
-F: Documentation/misc-devices/lcd-panel-cgram.txt
-F: drivers/misc/panel.c
+M: Willy Tarreau <willy@haproxy.com>
+M: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
+S: Odd Fixes
+F: Documentation/misc-devices/lcd-panel-cgram.txt
+F: drivers/misc/panel.c
PARALLEL PORT SUBSYSTEM
M: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
@@ -9646,7 +10179,7 @@ F: include/uapi/linux/ppdev.h
F: Documentation/parport*.txt
PARAVIRT_OPS INTERFACE
-M: Jeremy Fitzhardinge <jeremy@goop.org>
+M: Juergen Gross <jgross@suse.com>
M: Chris Wright <chrisw@sous-sol.org>
M: Alok Kataria <akataria@vmware.com>
M: Rusty Russell <rusty@rustcorp.com.au>
@@ -9654,7 +10187,7 @@ L: virtualization@lists.linux-foundation.org
S: Supported
F: Documentation/virtual/paravirt_ops.txt
F: arch/*/kernel/paravirt*
-F: arch/*/include/asm/paravirt.h
+F: arch/*/include/asm/paravirt*.h
F: include/linux/hypervisor.h
PARIDE DRIVERS FOR PARALLEL PORT IDE DEVICES
@@ -9728,42 +10261,13 @@ M: Khalid Aziz <khalid@gonehiking.org>
S: Maintained
F: drivers/firmware/pcdp.*
-PCI ERROR RECOVERY
-M: Linas Vepstas <linasvepstas@gmail.com>
-L: linux-pci@vger.kernel.org
-S: Supported
-F: Documentation/PCI/pci-error-recovery.txt
-
-PCI ENHANCED ERROR HANDLING (EEH) FOR POWERPC
-M: Russell Currey <ruscur@russell.cc>
-L: linuxppc-dev@lists.ozlabs.org
-S: Supported
-F: Documentation/powerpc/eeh-pci-error-recovery.txt
-F: arch/powerpc/kernel/eeh*.c
-F: arch/powerpc/platforms/*/eeh*.c
-F: arch/powerpc/include/*/eeh*.h
-
-PCI SUBSYSTEM
-M: Bjorn Helgaas <bhelgaas@google.com>
-L: linux-pci@vger.kernel.org
-Q: http://patchwork.ozlabs.org/project/linux-pci/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git
-S: Supported
-F: Documentation/devicetree/bindings/pci/
-F: Documentation/PCI/
-F: drivers/pci/
-F: include/linux/pci*
-F: arch/x86/pci/
-F: arch/x86/kernel/quirks.c
-
-PCI ENDPOINT SUBSYSTEM
-M: Kishon Vijay Abraham I <kishon@ti.com>
+PCI DRIVER FOR AARDVARK (Marvell Armada 3700)
+M: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
L: linux-pci@vger.kernel.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/kishon/pci-endpoint.git
-S: Supported
-F: drivers/pci/endpoint/
-F: drivers/misc/pci_endpoint_test.c
-F: tools/pci/
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+F: Documentation/devicetree/bindings/pci/aardvark-pci.txt
+F: drivers/pci/host/pci-aardvark.c
PCI DRIVER FOR ALTERA PCIE IP
M: Ley Foon Tan <lftan@altera.com>
@@ -9773,6 +10277,14 @@ S: Supported
F: Documentation/devicetree/bindings/pci/altera-pcie.txt
F: drivers/pci/host/pcie-altera.c
+PCI DRIVER FOR APPLIEDMICRO XGENE
+M: Tanmay Inamdar <tinamdar@apm.com>
+L: linux-pci@vger.kernel.org
+L: linux-arm-kernel@lists.infradead.org
+S: Maintained
+F: Documentation/devicetree/bindings/pci/xgene-pci.txt
+F: drivers/pci/host/pci-xgene.c
+
PCI DRIVER FOR ARM VERSATILE PLATFORM
M: Rob Herring <robh@kernel.org>
L: linux-pci@vger.kernel.org
@@ -9789,14 +10301,6 @@ S: Maintained
F: Documentation/devicetree/bindings/pci/pci-armada8k.txt
F: drivers/pci/dwc/pcie-armada8k.c
-PCI DRIVER FOR APPLIEDMICRO XGENE
-M: Tanmay Inamdar <tinamdar@apm.com>
-L: linux-pci@vger.kernel.org
-L: linux-arm-kernel@lists.infradead.org
-S: Maintained
-F: Documentation/devicetree/bindings/pci/xgene-pci.txt
-F: drivers/pci/host/pci-xgene.c
-
PCI DRIVER FOR FREESCALE LAYERSCAPE
M: Minghuan Lian <minghuan.Lian@freescale.com>
M: Mingkai Hu <mingkai.hu@freescale.com>
@@ -9807,6 +10311,15 @@ L: linux-arm-kernel@lists.infradead.org
S: Maintained
F: drivers/pci/dwc/*layerscape*
+PCI DRIVER FOR GENERIC OF HOSTS
+M: Will Deacon <will.deacon@arm.com>
+L: linux-pci@vger.kernel.org
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+F: Documentation/devicetree/bindings/pci/host-generic-pci.txt
+F: drivers/pci/host/pci-host-common.c
+F: drivers/pci/host/pci-host-generic.c
+
PCI DRIVER FOR IMX6
M: Richard Zhu <hongxing.zhu@nxp.com>
M: Lucas Stach <l.stach@pengutronix.de>
@@ -9816,28 +10329,12 @@ S: Maintained
F: Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt
F: drivers/pci/dwc/*imx6*
-PCI DRIVER FOR TI KEYSTONE
-M: Murali Karicheri <m-karicheri2@ti.com>
-L: linux-pci@vger.kernel.org
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S: Maintained
-F: drivers/pci/dwc/*keystone*
-
-PCI DRIVER FOR MVEBU (Marvell Armada 370 and Armada XP SOC support)
-M: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-M: Jason Cooper <jason@lakedaemon.net>
-L: linux-pci@vger.kernel.org
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S: Maintained
-F: drivers/pci/host/*mvebu*
-
-PCI DRIVER FOR AARDVARK (Marvell Armada 3700)
-M: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+PCI DRIVER FOR INTEL VOLUME MANAGEMENT DEVICE (VMD)
+M: Keith Busch <keith.busch@intel.com>
+M: Jonathan Derrick <jonathan.derrick@intel.com>
L: linux-pci@vger.kernel.org
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S: Maintained
-F: Documentation/devicetree/bindings/pci/aardvark-pci.txt
-F: drivers/pci/host/pci-aardvark.c
+S: Supported
+F: drivers/pci/host/vmd.c
PCI DRIVER FOR MICROSEMI SWITCHTEC
M: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
@@ -9850,6 +10347,14 @@ F: Documentation/ABI/testing/sysfs-class-switchtec
F: drivers/pci/switch/switchtec*
F: include/uapi/linux/switchtec_ioctl.h
+PCI DRIVER FOR MVEBU (Marvell Armada 370 and Armada XP SOC support)
+M: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+M: Jason Cooper <jason@lakedaemon.net>
+L: linux-pci@vger.kernel.org
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+F: drivers/pci/host/*mvebu*
+
PCI DRIVER FOR NVIDIA TEGRA
M: Thierry Reding <thierry.reding@gmail.com>
L: linux-tegra@vger.kernel.org
@@ -9858,14 +10363,6 @@ S: Supported
F: Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt
F: drivers/pci/host/pci-tegra.c
-PCI DRIVER FOR TI DRA7XX
-M: Kishon Vijay Abraham I <kishon@ti.com>
-L: linux-omap@vger.kernel.org
-L: linux-pci@vger.kernel.org
-S: Supported
-F: Documentation/devicetree/bindings/pci/ti-pci.txt
-F: drivers/pci/dwc/pci-dra7xx.c
-
PCI DRIVER FOR RENESAS R-CAR
M: Simon Horman <horms@verge.net.au>
L: linux-pci@vger.kernel.org
@@ -9881,7 +10378,7 @@ L: linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
S: Maintained
F: drivers/pci/dwc/pci-exynos.c
-PCI DRIVER FOR SYNOPSIS DESIGNWARE
+PCI DRIVER FOR SYNOPSYS DESIGNWARE
M: Jingoo Han <jingoohan1@gmail.com>
M: Joao Pinto <Joao.Pinto@synopsys.com>
L: linux-pci@vger.kernel.org
@@ -9889,26 +10386,44 @@ S: Maintained
F: Documentation/devicetree/bindings/pci/designware-pcie.txt
F: drivers/pci/dwc/*designware*
-PCI DRIVER FOR GENERIC OF HOSTS
-M: Will Deacon <will.deacon@arm.com>
+PCI DRIVER FOR TI DRA7XX
+M: Kishon Vijay Abraham I <kishon@ti.com>
+L: linux-omap@vger.kernel.org
+L: linux-pci@vger.kernel.org
+S: Supported
+F: Documentation/devicetree/bindings/pci/ti-pci.txt
+F: drivers/pci/dwc/pci-dra7xx.c
+
+PCI DRIVER FOR TI KEYSTONE
+M: Murali Karicheri <m-karicheri2@ti.com>
L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
-F: Documentation/devicetree/bindings/pci/host-generic-pci.txt
-F: drivers/pci/host/pci-host-common.c
-F: drivers/pci/host/pci-host-generic.c
+F: drivers/pci/dwc/*keystone*
-PCI DRIVER FOR INTEL VOLUME MANAGEMENT DEVICE (VMD)
-M: Keith Busch <keith.busch@intel.com>
+PCI ENDPOINT SUBSYSTEM
+M: Kishon Vijay Abraham I <kishon@ti.com>
L: linux-pci@vger.kernel.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kishon/pci-endpoint.git
S: Supported
-F: drivers/pci/host/vmd.c
+F: drivers/pci/endpoint/
+F: drivers/misc/pci_endpoint_test.c
+F: tools/pci/
-PCIE DRIVER FOR ST SPEAR13XX
-M: Pratyush Anand <pratyush.anand@gmail.com>
+PCI ENHANCED ERROR HANDLING (EEH) FOR POWERPC
+M: Russell Currey <ruscur@russell.cc>
+L: linuxppc-dev@lists.ozlabs.org
+S: Supported
+F: Documentation/powerpc/eeh-pci-error-recovery.txt
+F: arch/powerpc/kernel/eeh*.c
+F: arch/powerpc/platforms/*/eeh*.c
+F: arch/powerpc/include/*/eeh*.h
+
+PCI ERROR RECOVERY
+M: Linas Vepstas <linasvepstas@gmail.com>
L: linux-pci@vger.kernel.org
-S: Maintained
-F: drivers/pci/dwc/*spear*
+S: Supported
+F: Documentation/PCI/pci-error-recovery.txt
PCI MSI DRIVER FOR ALTERA MSI IP
M: Ley Foon Tan <lftan@altera.com>
@@ -9926,6 +10441,19 @@ S: Maintained
F: Documentation/devicetree/bindings/pci/xgene-pci-msi.txt
F: drivers/pci/host/pci-xgene-msi.c
+PCI SUBSYSTEM
+M: Bjorn Helgaas <bhelgaas@google.com>
+L: linux-pci@vger.kernel.org
+Q: http://patchwork.ozlabs.org/project/linux-pci/list/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git
+S: Supported
+F: Documentation/devicetree/bindings/pci/
+F: Documentation/PCI/
+F: drivers/pci/
+F: include/linux/pci*
+F: arch/x86/pci/
+F: arch/x86/kernel/quirks.c
+
PCIE DRIVER FOR AXIS ARTPEC
M: Niklas Cassel <niklas.cassel@axis.com>
M: Jesper Nilsson <jesper.nilsson@axis.com>
@@ -9935,6 +10463,14 @@ S: Maintained
F: Documentation/devicetree/bindings/pci/axis,artpec*
F: drivers/pci/dwc/*artpec*
+PCIE DRIVER FOR CAVIUM THUNDERX
+M: David Daney <david.daney@cavium.com>
+L: linux-pci@vger.kernel.org
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S: Supported
+F: Documentation/devicetree/bindings/pci/pci-thunder-*
+F: drivers/pci/host/pci-thunder-*
+
PCIE DRIVER FOR HISILICON
M: Zhou Wang <wangzhou1@hisilicon.com>
M: Gabriele Paoloni <gabriele.paoloni@huawei.com>
@@ -9943,29 +10479,42 @@ S: Maintained
F: Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
F: drivers/pci/dwc/pcie-hisi.c
+PCIE DRIVER FOR HISILICON KIRIN
+M: Xiaowei Song <songxiaowei@hisilicon.com>
+M: Binghui Wang <wangbinghui@hisilicon.com>
+L: linux-pci@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/pci/pcie-kirin.txt
+F: drivers/pci/dwc/pcie-kirin.c
+
+PCIE DRIVER FOR MEDIATEK
+M: Ryder Lee <ryder.lee@mediatek.com>
+L: linux-pci@vger.kernel.org
+L: linux-mediatek@lists.infradead.org
+S: Supported
+F: Documentation/devicetree/bindings/pci/mediatek*
+F: drivers/pci/host/*mediatek*
+
+PCIE DRIVER FOR QUALCOMM MSM
+M: Stanimir Varbanov <svarbanov@mm-sol.com>
+L: linux-pci@vger.kernel.org
+L: linux-arm-msm@vger.kernel.org
+S: Maintained
+F: drivers/pci/dwc/*qcom*
+
PCIE DRIVER FOR ROCKCHIP
M: Shawn Lin <shawn.lin@rock-chips.com>
-M: Wenrui Li <wenrui.li@rock-chips.com>
L: linux-pci@vger.kernel.org
L: linux-rockchip@lists.infradead.org
S: Maintained
F: Documentation/devicetree/bindings/pci/rockchip-pcie.txt
F: drivers/pci/host/pcie-rockchip.c
-PCIE DRIVER FOR QUALCOMM MSM
-M: Stanimir Varbanov <svarbanov@mm-sol.com>
-L: linux-pci@vger.kernel.org
-L: linux-arm-msm@vger.kernel.org
-S: Maintained
-F: drivers/pci/dwc/*qcom*
-
-PCIE DRIVER FOR CAVIUM THUNDERX
-M: David Daney <david.daney@cavium.com>
+PCIE DRIVER FOR ST SPEAR13XX
+M: Pratyush Anand <pratyush.anand@gmail.com>
L: linux-pci@vger.kernel.org
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S: Supported
-F: Documentation/devicetree/bindings/pci/pci-thunder-*
-F: drivers/pci/host/pci-thunder-*
+S: Maintained
+F: drivers/pci/dwc/*spear*
PCMCIA SUBSYSTEM
P: Linux PCMCIA Team
@@ -10011,6 +10560,8 @@ M: Peter Zijlstra <peterz@infradead.org>
M: Ingo Molnar <mingo@redhat.com>
M: Arnaldo Carvalho de Melo <acme@kernel.org>
R: Alexander Shishkin <alexander.shishkin@linux.intel.com>
+R: Jiri Olsa <jolsa@redhat.com>
+R: Namhyung Kim <namhyung@kernel.org>
L: linux-kernel@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf/core
S: Supported
@@ -10068,7 +10619,7 @@ L: linux-gpio@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git
S: Maintained
F: Documentation/devicetree/bindings/pinctrl/
-F: Documentation/pinctrl.txt
+F: Documentation/driver-api/pinctl.rst
F: drivers/pinctrl/
F: include/linux/pinctrl/
@@ -10091,6 +10642,13 @@ M: Heikki Krogerus <heikki.krogerus@linux.intel.com>
S: Maintained
F: drivers/pinctrl/intel/
+PIN CONTROLLER - QUALCOMM
+M: Bjorn Andersson <bjorn.andersson@linaro.org>
+S: Maintained
+L: linux-arm-msm@vger.kernel.org
+F: Documentation/devicetree/bindings/pinctrl/qcom,*.txt
+F: drivers/pinctrl/qcom/
+
PIN CONTROLLER - RENESAS
M: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
M: Geert Uytterhoeven <geert+renesas@glider.be>
@@ -10127,14 +10685,14 @@ S: Maintained
F: drivers/pinctrl/spear/
PISTACHIO SOC SUPPORT
-M: James Hartley <james.hartley@imgtec.com>
-M: Ionela Voinescu <ionela.voinescu@imgtec.com>
-L: linux-mips@linux-mips.org
-S: Maintained
-F: arch/mips/pistachio/
-F: arch/mips/include/asm/mach-pistachio/
-F: arch/mips/boot/dts/img/pistachio*
-F: arch/mips/configs/pistachio*_defconfig
+M: James Hartley <james.hartley@imgtec.com>
+M: Ionela Voinescu <ionela.voinescu@imgtec.com>
+L: linux-mips@linux-mips.org
+S: Maintained
+F: arch/mips/pistachio/
+F: arch/mips/include/asm/mach-pistachio/
+F: arch/mips/boot/dts/img/pistachio*
+F: arch/mips/configs/pistachio*_defconfig
PKTCDVD DRIVER
S: Orphan
@@ -10162,7 +10720,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git
S: Maintained
F: Documentation/hwmon/pmbus
F: drivers/hwmon/pmbus/
-F: include/linux/i2c/pmbus.h
+F: include/linux/pmbus.h
PMC SIERRA MaxRAID DRIVER
L: linux-scsi@vger.kernel.org
@@ -10177,6 +10735,11 @@ L: linux-scsi@vger.kernel.org
S: Supported
F: drivers/scsi/pm8001/
+PNP SUPPORT
+M: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
+S: Maintained
+F: drivers/pnp/
+
POSIX CLOCKS and TIMERS
M: Thomas Gleixner <tglx@linutronix.de>
L: linux-kernel@vger.kernel.org
@@ -10198,15 +10761,6 @@ F: include/linux/pm_*
F: include/linux/powercap.h
F: drivers/powercap/
-POWER SUPPLY CLASS/SUBSYSTEM and DRIVERS
-M: Sebastian Reichel <sre@kernel.org>
-L: linux-pm@vger.kernel.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git
-S: Maintained
-F: Documentation/devicetree/bindings/power/supply/
-F: include/linux/power_supply.h
-F: drivers/power/supply/
-
POWER STATE COORDINATION INTERFACE (PSCI)
M: Mark Rutland <mark.rutland@arm.com>
M: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
@@ -10216,23 +10770,21 @@ F: drivers/firmware/psci*.c
F: include/linux/psci.h
F: include/uapi/linux/psci.h
+POWER SUPPLY CLASS/SUBSYSTEM and DRIVERS
+M: Sebastian Reichel <sre@kernel.org>
+L: linux-pm@vger.kernel.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git
+S: Maintained
+F: Documentation/devicetree/bindings/power/supply/
+F: include/linux/power_supply.h
+F: drivers/power/supply/
+
POWERNV OPERATOR PANEL LCD DISPLAY DRIVER
M: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
L: linuxppc-dev@lists.ozlabs.org
S: Maintained
F: drivers/char/powernv-op-panel.c
-PNP SUPPORT
-M: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
-S: Maintained
-F: drivers/pnp/
-
-PPP PROTOCOL DRIVERS AND COMPRESSORS
-M: Paul Mackerras <paulus@samba.org>
-L: linux-ppp@vger.kernel.org
-S: Maintained
-F: drivers/net/ppp/ppp_*
-
PPP OVER ATM (RFC 2364)
M: Mitchell Blank Jr <mitch@sfgoth.com>
S: Maintained
@@ -10252,14 +10804,23 @@ F: net/l2tp/l2tp_ppp.c
F: include/linux/if_pppol2tp.h
F: include/uapi/linux/if_pppol2tp.h
+PPP PROTOCOL DRIVERS AND COMPRESSORS
+M: Paul Mackerras <paulus@samba.org>
+L: linux-ppp@vger.kernel.org
+S: Maintained
+F: drivers/net/ppp/ppp_*
+
PPS SUPPORT
M: Rodolfo Giometti <giometti@enneenne.com>
W: http://wiki.enneenne.com/index.php/LinuxPPS_support
L: linuxpps@ml.enneenne.com (subscribers-only)
S: Maintained
F: Documentation/pps/
+F: Documentation/devicetree/bindings/pps/pps-gpio.txt
+F: Documentation/ABI/testing/sysfs-pps
F: drivers/pps/
F: include/linux/pps*.h
+F: include/uapi/linux/pps.h
PPTP DRIVER
M: Dmitry Kozlov <xeb@mail.ru>
@@ -10291,6 +10852,17 @@ W: http://wireless.kernel.org/en/users/Drivers/p54
S: Obsolete
F: drivers/net/wireless/intersil/prism54/
+PROC SYSCTL
+M: "Luis R. Rodriguez" <mcgrof@kernel.org>
+M: Kees Cook <keescook@chromium.org>
+L: linux-kernel@vger.kernel.org
+L: linux-fsdevel@vger.kernel.org
+S: Maintained
+F: fs/proc/proc_sysctl.c
+F: include/linux/sysctl.h
+F: kernel/sysctl.c
+F: tools/testing/selftests/sysctl/
+
PS3 NETWORK SUPPORT
M: Geoff Levand <geoff@infradead.org>
L: netdev@vger.kernel.org
@@ -10354,7 +10926,6 @@ F: drivers/ptp/*
F: include/linux/ptp_cl*
PTRACE SUPPORT
-M: Roland McGrath <roland@hack.frob.com>
M: Oleg Nesterov <oleg@redhat.com>
S: Maintained
F: include/asm-generic/syscall.h
@@ -10362,7 +10933,12 @@ F: include/linux/ptrace.h
F: include/linux/regset.h
F: include/linux/tracehook.h
F: include/uapi/linux/ptrace.h
+F: include/uapi/linux/ptrace.h
+F: include/asm-generic/ptrace.h
F: kernel/ptrace.c
+F: arch/*/ptrace*.c
+F: arch/*/*/ptrace*.c
+F: arch/*/include/asm/ptrace*.h
PULSE8-CEC DRIVER
M: Hans Verkuil <hverkuil@xs4all.nl>
@@ -10370,6 +10946,7 @@ L: linux-media@vger.kernel.org
T: git git://linuxtv.org/media_tree.git
S: Maintained
F: drivers/media/usb/pulse8-cec/*
+F: Documentation/media/cec-drivers/pulse8-cec.rst
PVRUSB2 VIDEO4LINUX DRIVER
M: Mike Isely <isely@pobox.com>
@@ -10397,6 +10974,12 @@ F: Documentation/devicetree/bindings/hwmon/pwm-fan.txt
F: Documentation/hwmon/pwm-fan
F: drivers/hwmon/pwm-fan.c
+PWM IR Transmitter
+M: Sean Young <sean@mess.org>
+L: linux-media@vger.kernel.org
+S: Maintained
+F: drivers/media/rc/pwm-ir-tx.c
+
PWM SUBSYSTEM
M: Thierry Reding <thierry.reding@gmail.com>
L: linux-pwm@vger.kernel.org
@@ -10411,6 +10994,20 @@ F: include/linux/pwm_backlight.h
F: drivers/gpio/gpio-mvebu.c
F: Documentation/devicetree/bindings/gpio/gpio-mvebu.txt
+PXA GPIO DRIVER
+M: Robert Jarzmik <robert.jarzmik@free.fr>
+L: linux-gpio@vger.kernel.org
+S: Maintained
+F: drivers/gpio/gpio-pxa.c
+
+PXA MMCI DRIVER
+S: Orphan
+
+PXA RTC DRIVER
+M: Robert Jarzmik <robert.jarzmik@free.fr>
+L: linux-rtc@vger.kernel.org
+S: Maintained
+
PXA2xx/PXA3xx SUPPORT
M: Daniel Mack <daniel@zonque.org>
M: Haojian Zhuang <haojian.zhuang@gmail.com>
@@ -10430,36 +11027,12 @@ F: include/sound/pxa2xx-lib.h
F: sound/arm/pxa*
F: sound/soc/pxa/
-PXA GPIO DRIVER
-M: Robert Jarzmik <robert.jarzmik@free.fr>
-L: linux-gpio@vger.kernel.org
-S: Maintained
-F: drivers/gpio/gpio-pxa.c
-
PXA3xx NAND FLASH DRIVER
M: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
L: linux-mtd@lists.infradead.org
S: Maintained
F: drivers/mtd/nand/pxa3xx_nand.c
-MMP SUPPORT
-M: Eric Miao <eric.y.miao@gmail.com>
-M: Haojian Zhuang <haojian.zhuang@gmail.com>
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-T: git git://github.com/hzhuang1/linux.git
-T: git git://git.linaro.org/people/ycmiao/pxa-linux.git
-S: Maintained
-F: arch/arm/boot/dts/mmp*
-F: arch/arm/mach-mmp/
-
-PXA MMCI DRIVER
-S: Orphan
-
-PXA RTC DRIVER
-M: Robert Jarzmik <robert.jarzmik@free.fr>
-L: linux-rtc@vger.kernel.org
-S: Maintained
-
QAT DRIVER
M: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
M: Salvatore Benedetto <salvatore.benedetto@intel.com>
@@ -10467,12 +11040,55 @@ L: qat-linux@intel.com
S: Supported
F: drivers/crypto/qat/
+QCOM AUDIO (ASoC) DRIVERS
+M: Patrick Lai <plai@codeaurora.org>
+M: Banajit Goswami <bgoswami@codeaurora.org>
+L: alsa-devel@alsa-project.org (moderated for non-subscribers)
+S: Supported
+F: sound/soc/qcom/
+
+QEMU MACHINE EMULATOR AND VIRTUALIZER SUPPORT
+M: Gabriel Somlo <somlo@cmu.edu>
+M: "Michael S. Tsirkin" <mst@redhat.com>
+L: qemu-devel@nongnu.org
+S: Maintained
+F: drivers/firmware/qemu_fw_cfg.c
+
QIB DRIVER
M: Mike Marciniszyn <infinipath@intel.com>
L: linux-rdma@vger.kernel.org
S: Supported
F: drivers/infiniband/hw/qib/
+QLOGIC QL41xxx FCOE DRIVER
+M: QLogic-Storage-Upstream@cavium.com
+L: linux-scsi@vger.kernel.org
+S: Supported
+F: drivers/scsi/qedf/
+
+QLOGIC QL41xxx ISCSI DRIVER
+M: QLogic-Storage-Upstream@cavium.com
+L: linux-scsi@vger.kernel.org
+S: Supported
+F: drivers/scsi/qedi/
+
+QLOGIC QL4xxx ETHERNET DRIVER
+M: Ariel Elior <Ariel.Elior@cavium.com>
+M: everest-linux-l2@cavium.com
+L: netdev@vger.kernel.org
+S: Supported
+F: drivers/net/ethernet/qlogic/qed/
+F: include/linux/qed/
+F: drivers/net/ethernet/qlogic/qede/
+
+QLOGIC QL4xxx RDMA DRIVER
+M: Ram Amrani <Ram.Amrani@cavium.com>
+M: Ariel Elior <Ariel.Elior@cavium.com>
+L: linux-rdma@vger.kernel.org
+S: Supported
+F: drivers/infiniband/hw/qedr/
+F: include/uapi/rdma/qedr-abi.h
+
QLOGIC QLA1280 SCSI DRIVER
M: Michael Reed <mdr@sgi.com>
L: linux-scsi@vger.kernel.org
@@ -10486,13 +11102,6 @@ S: Supported
F: Documentation/scsi/LICENSE.qla2xxx
F: drivers/scsi/qla2xxx/
-QLOGIC QLA4XXX iSCSI DRIVER
-M: QLogic-Storage-Upstream@qlogic.com
-L: linux-scsi@vger.kernel.org
-S: Supported
-F: Documentation/scsi/LICENSE.qla4xxx
-F: drivers/scsi/qla4xxx/
-
QLOGIC QLA3XXX NETWORK DRIVER
M: Dept-GELinuxNICDev@cavium.com
L: netdev@vger.kernel.org
@@ -10500,6 +11109,13 @@ S: Supported
F: Documentation/networking/LICENSE.qla3xxx
F: drivers/net/ethernet/qlogic/qla3xxx.*
+QLOGIC QLA4XXX iSCSI DRIVER
+M: QLogic-Storage-Upstream@qlogic.com
+L: linux-scsi@vger.kernel.org
+S: Supported
+F: Documentation/scsi/LICENSE.qla4xxx
+F: drivers/scsi/qla4xxx/
+
QLOGIC QLCNIC (1/10)Gb ETHERNET DRIVER
M: Harish Patil <harish.patil@cavium.com>
M: Manish Chopra <manish.chopra@cavium.com>
@@ -10516,28 +11132,6 @@ L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/qlogic/qlge/
-QLOGIC QL4xxx ETHERNET DRIVER
-M: Yuval Mintz <Yuval.Mintz@cavium.com>
-M: Ariel Elior <Ariel.Elior@cavium.com>
-M: everest-linux-l2@cavium.com
-L: netdev@vger.kernel.org
-S: Supported
-F: drivers/net/ethernet/qlogic/qed/
-F: include/linux/qed/
-F: drivers/net/ethernet/qlogic/qede/
-
-QLOGIC QL41xxx ISCSI DRIVER
-M: QLogic-Storage-Upstream@cavium.com
-L: linux-scsi@vger.kernel.org
-S: Supported
-F: drivers/scsi/qedi/
-
-QLOGIC QL41xxx FCOE DRIVER
-M: QLogic-Storage-Upstream@cavium.com
-L: linux-scsi@vger.kernel.org
-S: Supported
-F: drivers/scsi/qedf/
-
QNX4 FILESYSTEM
M: Anders Larsen <al@alarsen.net>
W: http://www.alarsen.net/linux/qnx4fs/
@@ -10552,6 +11146,7 @@ M: Laurentiu Tudor <laurentiu.tudor@nxp.com>
L: linux-kernel@vger.kernel.org
S: Maintained
F: drivers/staging/fsl-mc/
+F: Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt
QT1010 MEDIA DRIVER
M: Antti Palosaari <crope@iki.fi>
@@ -10563,13 +11158,6 @@ T: git git://linuxtv.org/anttip/media_tree.git
S: Maintained
F: drivers/media/tuners/qt1010*
-QUALCOMM ATHEROS ATH9K WIRELESS DRIVER
-M: QCA ath9k Development <ath9k-devel@qca.qualcomm.com>
-L: linux-wireless@vger.kernel.org
-W: http://wireless.kernel.org/en/users/Drivers/ath9k
-S: Supported
-F: drivers/net/wireless/ath/ath9k/
-
QUALCOMM ATHEROS ATH10K WIRELESS DRIVER
M: Kalle Valo <kvalo@qca.qualcomm.com>
L: ath10k@lists.infradead.org
@@ -10578,6 +11166,21 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
S: Supported
F: drivers/net/wireless/ath/ath10k/
+QUALCOMM ATHEROS ATH9K WIRELESS DRIVER
+M: QCA ath9k Development <ath9k-devel@qca.qualcomm.com>
+L: linux-wireless@vger.kernel.org
+W: http://wireless.kernel.org/en/users/Drivers/ath9k
+S: Supported
+F: drivers/net/wireless/ath/ath9k/
+
+QUALCOMM CAMERA SUBSYSTEM DRIVER
+M: Todor Tomov <todor.tomov@linaro.org>
+L: linux-media@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/media/qcom,camss.txt
+F: Documentation/media/v4l-drivers/qcom_camss.rst
+F: drivers/media/platform/qcom/camss-8x16/
+
QUALCOMM EMAC GIGABIT ETHERNET DRIVER
M: Timur Tabi <timur@codeaurora.org>
L: netdev@vger.kernel.org
@@ -10591,6 +11194,21 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel.g
S: Supported
F: arch/hexagon/
+QUALCOMM IOMMU
+M: Rob Clark <robdclark@gmail.com>
+L: iommu@lists.linux-foundation.org
+L: linux-arm-msm@vger.kernel.org
+S: Maintained
+F: drivers/iommu/qcom_iommu.c
+
+QUALCOMM VENUS VIDEO ACCELERATOR DRIVER
+M: Stanimir Varbanov <stanimir.varbanov@linaro.org>
+L: linux-media@vger.kernel.org
+L: linux-arm-msm@vger.kernel.org
+T: git git://linuxtv.org/media_tree.git
+S: Maintained
+F: drivers/media/platform/qcom/venus/
+
QUALCOMM WCN36XX WIRELESS DRIVER
M: Eugene Krasnikov <k.eugene.e@gmail.com>
L: wcn36xx@lists.infradead.org
@@ -10599,25 +11217,24 @@ T: git git://github.com/KrasnikovEugene/wcn36xx.git
S: Supported
F: drivers/net/wireless/ath/wcn36xx/
-QEMU MACHINE EMULATOR AND VIRTUALIZER SUPPORT
-M: Gabriel Somlo <somlo@cmu.edu>
-M: "Michael S. Tsirkin" <mst@redhat.com>
-L: qemu-devel@nongnu.org
+QUANTENNA QTNFMAC WIRELESS DRIVER
+M: Igor Mitsyanko <imitsyanko@quantenna.com>
+M: Avinash Patil <avinashp@quantenna.com>
+M: Sergey Matyukevich <smatyukevich@quantenna.com>
+L: linux-wireless@vger.kernel.org
S: Maintained
-F: drivers/firmware/qemu_fw_cfg.c
+F: drivers/net/wireless/quantenna
-RADOS BLOCK DEVICE (RBD)
-M: Ilya Dryomov <idryomov@gmail.com>
-M: Sage Weil <sage@redhat.com>
-M: Alex Elder <elder@kernel.org>
-L: ceph-devel@vger.kernel.org
-W: http://ceph.com/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git
-T: git git://github.com/ceph/ceph-client.git
+RADEON and AMDGPU DRM DRIVERS
+M: Alex Deucher <alexander.deucher@amd.com>
+M: Christian König <christian.koenig@amd.com>
+L: amd-gfx@lists.freedesktop.org
+T: git git://people.freedesktop.org/~agd5f/linux
S: Supported
-F: Documentation/ABI/testing/sysfs-bus-rbd
-F: drivers/block/rbd.c
-F: drivers/block/rbd_types.h
+F: drivers/gpu/drm/radeon/
+F: include/uapi/drm/radeon_drm.h
+F: drivers/gpu/drm/amd/
+F: include/uapi/drm/amdgpu_drm.h
RADEON FRAMEBUFFER DISPLAY DRIVER
M: Benjamin Herrenschmidt <benh@kernel.crashing.org>
@@ -10641,6 +11258,19 @@ S: Maintained
F: drivers/media/radio/radio-shark2.c
F: drivers/media/radio/radio-tea5777.c
+RADOS BLOCK DEVICE (RBD)
+M: Ilya Dryomov <idryomov@gmail.com>
+M: Sage Weil <sage@redhat.com>
+M: Alex Elder <elder@kernel.org>
+L: ceph-devel@vger.kernel.org
+W: http://ceph.com/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git
+T: git git://github.com/ceph/ceph-client.git
+S: Supported
+F: Documentation/ABI/testing/sysfs-bus-rbd
+F: drivers/block/rbd.c
+F: drivers/block/rbd_types.h
+
RAGE128 FRAMEBUFFER DISPLAY DRIVER
M: Paul Mackerras <paulus@samba.org>
L: linux-fbdev@vger.kernel.org
@@ -10720,6 +11350,12 @@ L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/ethernet/rdc/r6040.c
+RDMAVT - RDMA verbs software
+M: Dennis Dalessandro <dennis.dalessandro@intel.com>
+L: linux-rdma@vger.kernel.org
+S: Supported
+F: drivers/infiniband/sw/rdmavt
+
RDS - RELIABLE DATAGRAM SOCKETS
M: Santosh Shilimkar <santosh.shilimkar@oracle.com>
L: netdev@vger.kernel.org
@@ -10730,18 +11366,12 @@ S: Supported
F: net/rds/
F: Documentation/networking/rds.txt
-RDMAVT - RDMA verbs software
-M: Dennis Dalessandro <dennis.dalessandro@intel.com>
-L: linux-rdma@vger.kernel.org
-S: Supported
-F: drivers/infiniband/sw/rdmavt
-
RDT - RESOURCE ALLOCATION
M: Fenghua Yu <fenghua.yu@intel.com>
L: linux-kernel@vger.kernel.org
S: Supported
F: arch/x86/kernel/cpu/intel_rdt*
-F: arch/x86/include/asm/intel_rdt*
+F: arch/x86/include/asm/intel_rdt_sched.h
F: Documentation/x86/intel_rdt*
READ-COPY UPDATE (RCU)
@@ -10784,11 +11414,6 @@ S: Maintained
F: sound/soc/codecs/rt*
F: include/sound/rt*.h
-REISERFS FILE SYSTEM
-L: reiserfs-devel@vger.kernel.org
-S: Supported
-F: fs/reiserfs/
-
REGISTER MAP ABSTRACTION
M: Mark Brown <broonie@kernel.org>
L: linux-kernel@vger.kernel.org
@@ -10798,6 +11423,11 @@ F: Documentation/devicetree/bindings/regmap/
F: drivers/base/regmap/
F: include/linux/regmap.h
+REISERFS FILE SYSTEM
+L: reiserfs-devel@vger.kernel.org
+S: Supported
+F: fs/reiserfs/
+
REMOTE PROCESSOR (REMOTEPROC) SUBSYSTEM
M: Ohad Ben-Cohen <ohad@wizery.com>
M: Bjorn Andersson <bjorn.andersson@linaro.org>
@@ -10830,6 +11460,8 @@ RENESAS ETHERNET DRIVERS
R: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
L: netdev@vger.kernel.org
L: linux-renesas-soc@vger.kernel.org
+F: Documentation/devicetree/bindings/net/renesas,*.txt
+F: Documentation/devicetree/bindings/net/sh_eth.txt
F: drivers/net/ethernet/renesas/
F: include/linux/sh_eth.h
@@ -10839,11 +11471,11 @@ L: linux-iio@vger.kernel.org
S: Supported
F: drivers/iio/adc/rcar_gyro_adc.c
-RENESAS USB2 PHY DRIVER
+RENESAS USB PHY DRIVER
M: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
L: linux-renesas-soc@vger.kernel.org
S: Maintained
-F: drivers/phy/phy-rcar-gen3-usb2.c
+F: drivers/phy/renesas/phy-rcar-gen3-usb*.c
RESET CONTROLLER FRAMEWORK
M: Philipp Zabel <p.zabel@pengutronix.de>
@@ -10873,16 +11505,16 @@ S: Maintained
F: lib/rhashtable.c
F: include/linux/rhashtable.h
-RICOH SMARTMEDIA/XD DRIVER
+RICOH R5C592 MEMORYSTICK DRIVER
M: Maxim Levitsky <maximlevitsky@gmail.com>
S: Maintained
-F: drivers/mtd/nand/r852.c
-F: drivers/mtd/nand/r852.h
+F: drivers/memstick/host/r592.*
-RICOH R5C592 MEMORYSTICK DRIVER
+RICOH SMARTMEDIA/XD DRIVER
M: Maxim Levitsky <maximlevitsky@gmail.com>
S: Maintained
-F: drivers/memstick/host/r592.*
+F: drivers/mtd/nand/r852.c
+F: drivers/mtd/nand/r852.h
ROCCAT DRIVERS
M: Stefan Achatz <erazor_de@users.sourceforge.net>
@@ -10911,6 +11543,17 @@ L: linux-serial@vger.kernel.org
S: Odd Fixes
F: drivers/tty/serial/rp2.*
+ROHM MULTIFUNCTION BD9571MWV-M PMIC DEVICE DRIVERS
+M: Marek Vasut <marek.vasut+renesas@gmail.com>
+L: linux-kernel@vger.kernel.org
+L: linux-renesas-soc@vger.kernel.org
+S: Supported
+F: drivers/mfd/bd9571mwv.c
+F: drivers/regulator/bd9571mwv-regulator.c
+F: drivers/gpio/gpio-bd9571mwv.c
+F: include/linux/mfd/bd9571mwv.h
+F: Documentation/devicetree/bindings/mfd/bd9571mwv.txt
+
ROSE NETWORK LAYER
M: Ralf Baechle <ralf@linux-mips.org>
L: linux-hams@vger.kernel.org
@@ -11000,7 +11643,7 @@ S: Supported
F: arch/s390/
F: drivers/s390/
F: Documentation/s390/
-F: Documentation/DocBook/s390*
+F: Documentation/driver-api/s390-drivers.rst
S390 COMMON I/O LAYER
M: Sebastian Ott <sebott@linux.vnet.ibm.com>
@@ -11019,6 +11662,23 @@ S: Supported
F: drivers/s390/block/dasd*
F: block/partitions/ibm.c
+S390 IOMMU (PCI)
+M: Gerald Schaefer <gerald.schaefer@de.ibm.com>
+L: linux-s390@vger.kernel.org
+W: http://www.ibm.com/developerworks/linux/linux390/
+S: Supported
+F: drivers/iommu/s390-iommu.c
+
+S390 IUCV NETWORK LAYER
+M: Julian Wiedmann <jwi@linux.vnet.ibm.com>
+M: Ursula Braun <ubraun@linux.vnet.ibm.com>
+L: linux-s390@vger.kernel.org
+W: http://www.ibm.com/developerworks/linux/linux390/
+S: Supported
+F: drivers/s390/net/*iucv*
+F: include/net/iucv/
+F: net/iucv/
+
S390 NETWORK DRIVERS
M: Julian Wiedmann <jwi@linux.vnet.ibm.com>
M: Ursula Braun <ubraun@linux.vnet.ibm.com>
@@ -11036,6 +11696,16 @@ S: Supported
F: arch/s390/pci/
F: drivers/pci/hotplug/s390_pci_hpc.c
+S390 VFIO-CCW DRIVER
+M: Cornelia Huck <cohuck@redhat.com>
+M: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
+L: linux-s390@vger.kernel.org
+L: kvm@vger.kernel.org
+S: Supported
+F: drivers/s390/cio/vfio_ccw*
+F: Documentation/s390/vfio-ccw.txt
+F: include/uapi/linux/vfio_ccw.h
+
S390 ZCRYPT DRIVER
M: Harald Freudenberger <freude@de.ibm.com>
L: linux-s390@vger.kernel.org
@@ -11045,38 +11715,12 @@ F: drivers/s390/crypto/
S390 ZFCP DRIVER
M: Steffen Maier <maier@linux.vnet.ibm.com>
+M: Benjamin Block <bblock@linux.vnet.ibm.com>
L: linux-s390@vger.kernel.org
W: http://www.ibm.com/developerworks/linux/linux390/
S: Supported
F: drivers/s390/scsi/zfcp_*
-S390 IUCV NETWORK LAYER
-M: Julian Wiedmann <jwi@linux.vnet.ibm.com>
-M: Ursula Braun <ubraun@linux.vnet.ibm.com>
-L: linux-s390@vger.kernel.org
-W: http://www.ibm.com/developerworks/linux/linux390/
-S: Supported
-F: drivers/s390/net/*iucv*
-F: include/net/iucv/
-F: net/iucv/
-
-S390 IOMMU (PCI)
-M: Gerald Schaefer <gerald.schaefer@de.ibm.com>
-L: linux-s390@vger.kernel.org
-W: http://www.ibm.com/developerworks/linux/linux390/
-S: Supported
-F: drivers/iommu/s390-iommu.c
-
-S390 VFIO-CCW DRIVER
-M: Cornelia Huck <cornelia.huck@de.ibm.com>
-M: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
-L: linux-s390@vger.kernel.org
-L: kvm@vger.kernel.org
-S: Supported
-F: drivers/s390/cio/vfio_ccw*
-F: Documentation/s390/vfio-ccw.txt
-F: include/uapi/linux/vfio_ccw.h
-
S3C24XX SD/MMC Driver
M: Ben Dooks <ben-linux@fluff.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -11110,12 +11754,6 @@ F: drivers/media/common/saa7146/
F: drivers/media/pci/saa7146/
F: include/media/saa7146*
-SAMSUNG LAPTOP DRIVER
-M: Corentin Chary <corentin.chary@gmail.com>
-L: platform-driver-x86@vger.kernel.org
-S: Maintained
-F: drivers/platform/x86/samsung-laptop.c
-
SAMSUNG AUDIO (ASoC) DRIVERS
M: Krzysztof Kozlowski <krzk@kernel.org>
M: Sangbeom Kim <sbkim73@samsung.com>
@@ -11138,6 +11776,12 @@ L: linux-fbdev@vger.kernel.org
S: Maintained
F: drivers/video/fbdev/s3c-fb.c
+SAMSUNG LAPTOP DRIVER
+M: Corentin Chary <corentin.chary@gmail.com>
+L: platform-driver-x86@vger.kernel.org
+S: Maintained
+F: drivers/platform/x86/samsung-laptop.c
+
SAMSUNG MULTIFUNCTION PMIC DEVICE DRIVERS
M: Sangbeom Kim <sbkim73@samsung.com>
M: Krzysztof Kozlowski <krzk@kernel.org>
@@ -11156,22 +11800,6 @@ F: Documentation/devicetree/bindings/regulator/samsung,s2m*.txt
F: Documentation/devicetree/bindings/regulator/samsung,s5m*.txt
F: Documentation/devicetree/bindings/clock/samsung,s2mps11.txt
-SAMSUNG S5P Security SubSystem (SSS) DRIVER
-M: Krzysztof Kozlowski <krzk@kernel.org>
-M: Vladimir Zapolskiy <vz@mleia.com>
-L: linux-crypto@vger.kernel.org
-L: linux-samsung-soc@vger.kernel.org
-S: Maintained
-F: drivers/crypto/s5p-sss.c
-
-SAMSUNG S5P/EXYNOS4 SOC SERIES CAMERA SUBSYSTEM DRIVERS
-M: Kyungmin Park <kyungmin.park@samsung.com>
-M: Sylwester Nawrocki <s.nawrocki@samsung.com>
-L: linux-media@vger.kernel.org
-Q: https://patchwork.linuxtv.org/project/linux-media/list/
-S: Supported
-F: drivers/media/platform/exynos4-is/
-
SAMSUNG S3C24XX/S3C64XX SOC SERIES CAMIF DRIVER
M: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
L: linux-media@vger.kernel.org
@@ -11180,6 +11808,13 @@ S: Maintained
F: drivers/media/platform/s3c-camif/
F: include/media/drv-intf/s3c_camif.h
+SAMSUNG S3FWRN5 NFC DRIVER
+M: Robert Baldyga <r.baldyga@samsung.com>
+M: Krzysztof Opasiak <k.opasiak@samsung.com>
+L: linux-nfc@lists.01.org (moderated for non-subscribers)
+S: Supported
+F: drivers/nfc/s3fwrn5
+
SAMSUNG S5C73M3 CAMERA DRIVER
M: Kyungmin Park <kyungmin.park@samsung.com>
M: Andrzej Hajda <a.hajda@samsung.com>
@@ -11194,12 +11829,21 @@ L: linux-media@vger.kernel.org
S: Supported
F: drivers/media/i2c/s5k5baf.c
-SAMSUNG S3FWRN5 NFC DRIVER
-M: Robert Baldyga <r.baldyga@samsung.com>
-M: Krzysztof Opasiak <k.opasiak@samsung.com>
-L: linux-nfc@lists.01.org (moderated for non-subscribers)
+SAMSUNG S5P Security SubSystem (SSS) DRIVER
+M: Krzysztof Kozlowski <krzk@kernel.org>
+M: Vladimir Zapolskiy <vz@mleia.com>
+L: linux-crypto@vger.kernel.org
+L: linux-samsung-soc@vger.kernel.org
+S: Maintained
+F: drivers/crypto/s5p-sss.c
+
+SAMSUNG S5P/EXYNOS4 SOC SERIES CAMERA SUBSYSTEM DRIVERS
+M: Kyungmin Park <kyungmin.park@samsung.com>
+M: Sylwester Nawrocki <s.nawrocki@samsung.com>
+L: linux-media@vger.kernel.org
+Q: https://patchwork.linuxtv.org/project/linux-media/list/
S: Supported
-F: drivers/nfc/s3fwrn5
+F: drivers/media/platform/exynos4-is/
SAMSUNG SOC CLOCK DRIVERS
M: Sylwester Nawrocki <s.nawrocki@samsung.com>
@@ -11245,121 +11889,12 @@ L: linux-kernel@vger.kernel.org
S: Supported
F: Documentation/devicetree/bindings/phy/samsung-phy.txt
F: Documentation/phy/samsung-usb2.txt
-F: drivers/phy/phy-exynos4210-usb2.c
-F: drivers/phy/phy-exynos4x12-usb2.c
-F: drivers/phy/phy-exynos5250-usb2.c
-F: drivers/phy/phy-s5pv210-usb2.c
-F: drivers/phy/phy-samsung-usb2.c
-F: drivers/phy/phy-samsung-usb2.h
-
-SERIAL DRIVERS
-M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-L: linux-serial@vger.kernel.org
-S: Maintained
-F: Documentation/devicetree/bindings/serial/
-F: drivers/tty/serial/
-
-SERIAL DEVICE BUS
-M: Rob Herring <robh@kernel.org>
-L: linux-serial@vger.kernel.org
-S: Maintained
-F: Documentation/devicetree/bindings/serial/slave-device.txt
-F: drivers/tty/serdev/
-F: include/linux/serdev.h
-
-SERIAL IR RECEIVER
-M: Sean Young <sean@mess.org>
-L: linux-media@vger.kernel.org
-S: Maintained
-F: drivers/media/rc/serial_ir.c
-
-STI CEC DRIVER
-M: Benjamin Gaignard <benjamin.gaignard@linaro.org>
-S: Maintained
-F: drivers/staging/media/st-cec/
-F: Documentation/devicetree/bindings/media/stih-cec.txt
-
-SHARED MEMORY COMMUNICATIONS (SMC) SOCKETS
-M: Ursula Braun <ubraun@linux.vnet.ibm.com>
-L: linux-s390@vger.kernel.org
-W: http://www.ibm.com/developerworks/linux/linux390/
-S: Supported
-F: net/smc/
-
-SYNOPSYS DESIGNWARE DMAC DRIVER
-M: Viresh Kumar <vireshk@kernel.org>
-M: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
-S: Maintained
-F: include/linux/dma/dw.h
-F: include/linux/platform_data/dma-dw.h
-F: drivers/dma/dw/
-
-SYNOPSYS DESIGNWARE ENTERPRISE ETHERNET DRIVER
-M: Jie Deng <jiedeng@synopsys.com>
-L: netdev@vger.kernel.org
-S: Supported
-F: drivers/net/ethernet/synopsys/
-
-SYNOPSYS DESIGNWARE I2C DRIVER
-M: Jarkko Nikula <jarkko.nikula@linux.intel.com>
-R: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
-R: Mika Westerberg <mika.westerberg@linux.intel.com>
-L: linux-i2c@vger.kernel.org
-S: Maintained
-F: drivers/i2c/busses/i2c-designware-*
-F: include/linux/platform_data/i2c-designware.h
-
-SYNOPSYS DESIGNWARE MMC/SD/SDIO DRIVER
-M: Jaehoon Chung <jh80.chung@samsung.com>
-L: linux-mmc@vger.kernel.org
-S: Maintained
-F: drivers/mmc/host/dw_mmc*
-
-SYSTEM TRACE MODULE CLASS
-M: Alexander Shishkin <alexander.shishkin@linux.intel.com>
-S: Maintained
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/ash/stm.git
-F: Documentation/trace/stm.txt
-F: drivers/hwtracing/stm/
-F: include/linux/stm.h
-F: include/uapi/linux/stm.h
-
-TEE SUBSYSTEM
-M: Jens Wiklander <jens.wiklander@linaro.org>
-S: Maintained
-F: include/linux/tee_drv.h
-F: include/uapi/linux/tee.h
-F: drivers/tee/
-F: Documentation/tee.txt
-
-THUNDERBOLT DRIVER
-M: Andreas Noever <andreas.noever@gmail.com>
-S: Maintained
-F: drivers/thunderbolt/
-
-TI BQ27XXX POWER SUPPLY DRIVER
-R: Andrew F. Davis <afd@ti.com>
-F: include/linux/power/bq27xxx_battery.h
-F: drivers/power/supply/bq27xxx_battery.c
-F: drivers/power/supply/bq27xxx_battery_i2c.c
-
-TIMEKEEPING, CLOCKSOURCE CORE, NTP, ALARMTIMER
-M: John Stultz <john.stultz@linaro.org>
-M: Thomas Gleixner <tglx@linutronix.de>
-R: Stephen Boyd <sboyd@codeaurora.org>
-L: linux-kernel@vger.kernel.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core
-S: Supported
-F: include/linux/clocksource.h
-F: include/linux/time.h
-F: include/linux/timex.h
-F: include/uapi/linux/time.h
-F: include/uapi/linux/timex.h
-F: kernel/time/clocksource.c
-F: kernel/time/time*.c
-F: kernel/time/alarmtimer.c
-F: kernel/time/ntp.c
-F: tools/testing/selftests/timers/
+F: drivers/phy/samsung/phy-exynos4210-usb2.c
+F: drivers/phy/samsung/phy-exynos4x12-usb2.c
+F: drivers/phy/samsung/phy-exynos5250-usb2.c
+F: drivers/phy/samsung/phy-s5pv210-usb2.c
+F: drivers/phy/samsung/phy-samsung-usb2.c
+F: drivers/phy/samsung/phy-samsung-usb2.h
SC1200 WDT DRIVER
M: Zwane Mwaikambo <zwanem@gmail.com>
@@ -11389,16 +11924,6 @@ M: Lubomir Rintel <lkundrak@v3.sk>
S: Supported
F: drivers/char/pcmcia/scr24x_cs.c
-SYSTEM CONTROL & POWER INTERFACE (SCPI) Message Protocol drivers
-M: Sudeep Holla <sudeep.holla@arm.com>
-L: linux-arm-kernel@lists.infradead.org
-S: Maintained
-F: Documentation/devicetree/bindings/arm/arm,scpi.txt
-F: drivers/clk/clk-scpi.c
-F: drivers/cpufreq/scpi-cpufreq.c
-F: drivers/firmware/arm_scpi.c
-F: include/linux/scpi_protocol.h
-
SCSI CDROM DRIVER
M: Jens Axboe <axboe@kernel.dk>
L: linux-scsi@vger.kernel.org
@@ -11483,14 +12008,6 @@ L: sdricohcs-devel@lists.sourceforge.net (subscribers-only)
S: Maintained
F: drivers/mmc/host/sdricoh_cs.c
-SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) DRIVER
-M: Adrian Hunter <adrian.hunter@intel.com>
-L: linux-mmc@vger.kernel.org
-T: git git://git.infradead.org/users/ahunter/linux-sdhci.git
-S: Maintained
-F: drivers/mmc/host/sdhci*
-F: include/linux/mmc/sdhci*
-
SECURE COMPUTING
M: Kees Cook <keescook@chromium.org>
R: Andy Lutomirski <luto@amacapital.net>
@@ -11501,6 +12018,8 @@ F: kernel/seccomp.c
F: include/uapi/linux/seccomp.h
F: include/linux/seccomp.h
F: tools/testing/selftests/seccomp/*
+F: tools/testing/selftests/kselftest_harness.h
+F: Documentation/userspace-api/seccomp_filter.rst
K: \bsecure_computing
K: \bTIF_SECCOMP\b
@@ -11511,6 +12030,14 @@ L: bcm-kernel-feedback-list@broadcom.com
S: Maintained
F: drivers/mmc/host/sdhci-brcmstb*
+SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) DRIVER
+M: Adrian Hunter <adrian.hunter@intel.com>
+L: linux-mmc@vger.kernel.org
+T: git git://git.infradead.org/users/ahunter/linux-sdhci.git
+S: Maintained
+F: drivers/mmc/host/sdhci*
+F: include/linux/mmc/sdhci*
+
SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) SAMSUNG DRIVER
M: Ben Dooks <ben-linux@fluff.org>
M: Jaehoon Chung <jh80.chung@samsung.com>
@@ -11535,6 +12062,10 @@ F: block/opal_proto.h
F: include/linux/sed*
F: include/uapi/linux/sed*
+SECURITY CONTACT
+M: Security Officers <security@kernel.org>
+S: Supported
+
SECURITY SUBSYSTEM
M: James Morris <james.l.morris@oracle.com>
M: "Serge E. Hallyn" <serge@hallyn.com>
@@ -11544,41 +12075,19 @@ W: http://kernsec.org/
S: Supported
F: security/
-SECURITY CONTACT
-M: Security Officers <security@kernel.org>
-S: Supported
-
SELINUX SECURITY MODULE
M: Paul Moore <paul@paul-moore.com>
M: Stephen Smalley <sds@tycho.nsa.gov>
M: Eric Paris <eparis@parisplace.org>
L: selinux@tycho.nsa.gov (moderated for non-subscribers)
-W: http://selinuxproject.org
-T: git git://git.infradead.org/users/pcmoore/selinux
+W: https://selinuxproject.org
+W: https://github.com/SELinuxProject
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux.git
S: Supported
F: include/linux/selinux*
F: security/selinux/
F: scripts/selinux/
-
-APPARMOR SECURITY MODULE
-M: John Johansen <john.johansen@canonical.com>
-L: apparmor@lists.ubuntu.com (subscribers-only, general discussion)
-W: apparmor.wiki.kernel.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/jj/apparmor-dev.git
-S: Supported
-F: security/apparmor/
-
-LOADPIN SECURITY MODULE
-M: Kees Cook <keescook@chromium.org>
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git lsm/loadpin
-S: Supported
-F: security/loadpin/
-
-YAMA SECURITY MODULE
-M: Kees Cook <keescook@chromium.org>
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git yama/tip
-S: Supported
-F: security/yama/
+F: Documentation/admin-guide/LSM/SELinux.rst
SENSABLE PHANTOM
M: Jiri Slaby <jirislaby@gmail.com>
@@ -11586,33 +12095,26 @@ S: Maintained
F: drivers/misc/phantom.c
F: include/uapi/linux/phantom.h
-Emulex 10Gbps iSCSI - OneConnect DRIVER
-M: Subbu Seetharaman <subbu.seetharaman@broadcom.com>
-M: Ketan Mukadam <ketan.mukadam@broadcom.com>
-M: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
-L: linux-scsi@vger.kernel.org
-W: http://www.broadcom.com
-S: Supported
-F: drivers/scsi/be2iscsi/
+SERIAL DEVICE BUS
+M: Rob Herring <robh@kernel.org>
+L: linux-serial@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/serial/slave-device.txt
+F: drivers/tty/serdev/
+F: include/linux/serdev.h
-Emulex 10Gbps NIC BE2, BE3-R, Lancer, Skyhawk-R DRIVER (be2net)
-M: Sathya Perla <sathya.perla@broadcom.com>
-M: Ajit Khaparde <ajit.khaparde@broadcom.com>
-M: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
-M: Somnath Kotur <somnath.kotur@broadcom.com>
-L: netdev@vger.kernel.org
-W: http://www.emulex.com
-S: Supported
-F: drivers/net/ethernet/emulex/benet/
+SERIAL DRIVERS
+M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+L: linux-serial@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/serial/
+F: drivers/tty/serial/
-EMULEX ONECONNECT ROCE DRIVER
-M: Selvin Xavier <selvin.xavier@broadcom.com>
-M: Devesh Sharma <devesh.sharma@broadcom.com>
-L: linux-rdma@vger.kernel.org
-W: http://www.broadcom.com
-S: Odd Fixes
-F: drivers/infiniband/hw/ocrdma/
-F: include/uapi/rdma/ocrdma-abi.h
+SERIAL IR RECEIVER
+M: Sean Young <sean@mess.org>
+L: linux-media@vger.kernel.org
+S: Maintained
+F: drivers/media/rc/serial_ir.c
SFC NETWORK DRIVER
M: Solarflare linux maintainers <linux-net-drivers@solarflare.com>
@@ -11641,6 +12143,24 @@ M: Robin Holt <robinmholt@gmail.com>
S: Maintained
F: drivers/misc/sgi-xp/
+SHARED MEMORY COMMUNICATIONS (SMC) SOCKETS
+M: Ursula Braun <ubraun@linux.vnet.ibm.com>
+L: linux-s390@vger.kernel.org
+W: http://www.ibm.com/developerworks/linux/linux390/
+S: Supported
+F: net/smc/
+
+SH_VEU V4L2 MEM2MEM DRIVER
+L: linux-media@vger.kernel.org
+S: Orphan
+F: drivers/media/platform/sh_veu.c
+
+SH_VOU V4L2 OUTPUT DRIVER
+L: linux-media@vger.kernel.org
+S: Orphan
+F: drivers/media/platform/sh_vou.c
+F: include/media/drv-intf/sh_vou.h
+
SI2157 MEDIA DRIVER
M: Antti Palosaari <crope@iki.fi>
L: linux-media@vger.kernel.org
@@ -11723,24 +12243,14 @@ S: Maintained
F: drivers/input/touchscreen/silead.c
F: drivers/platform/x86/silead_dmi.c
-SIMPLEFB FB DRIVER
-M: Hans de Goede <hdegoede@redhat.com>
+SILICON MOTION SM712 FRAME BUFFER DRIVER
+M: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
+M: Teddy Wang <teddy.wang@siliconmotion.com>
+M: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
L: linux-fbdev@vger.kernel.org
S: Maintained
-F: Documentation/devicetree/bindings/display/simple-framebuffer.txt
-F: drivers/video/fbdev/simplefb.c
-F: include/linux/platform_data/simplefb.h
-
-SH_VEU V4L2 MEM2MEM DRIVER
-L: linux-media@vger.kernel.org
-S: Orphan
-F: drivers/media/platform/sh_veu.c
-
-SH_VOU V4L2 OUTPUT DRIVER
-L: linux-media@vger.kernel.org
-S: Orphan
-F: drivers/media/platform/sh_vou.c
-F: include/media/drv-intf/sh_vou.h
+F: drivers/video/fbdev/sm712*
+F: Documentation/fb/sm712fb.txt
SIMPLE FIRMWARE INTERFACE (SFI)
M: Len Brown <lenb@kernel.org>
@@ -11752,6 +12262,14 @@ F: arch/x86/platform/sfi/
F: drivers/sfi/
F: include/linux/sfi*.h
+SIMPLEFB FB DRIVER
+M: Hans de Goede <hdegoede@redhat.com>
+L: linux-fbdev@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/display/simple-framebuffer.txt
+F: drivers/video/fbdev/simplefb.c
+F: include/linux/platform_data/simplefb.h
+
SIMTEC EB110ATX (Chalice CATS)
P: Ben Dooks
P: Vincent Sanders <vince@simtec.co.uk>
@@ -11776,54 +12294,6 @@ F: lib/siphash.c
F: lib/test_siphash.c
F: include/linux/siphash.h
-TI DAVINCI MACHINE SUPPORT
-M: Sekhar Nori <nsekhar@ti.com>
-M: Kevin Hilman <khilman@kernel.org>
-L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci.git
-S: Supported
-F: arch/arm/mach-davinci/
-F: drivers/i2c/busses/i2c-davinci.c
-F: arch/arm/boot/dts/da850*
-
-TI DAVINCI SERIES MEDIA DRIVER
-M: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
-L: linux-media@vger.kernel.org
-W: https://linuxtv.org
-Q: http://patchwork.linuxtv.org/project/linux-media/list/
-T: git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git
-S: Maintained
-F: drivers/media/platform/davinci/
-F: include/media/davinci/
-
-TI AM437X VPFE DRIVER
-M: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
-L: linux-media@vger.kernel.org
-W: https://linuxtv.org
-Q: http://patchwork.linuxtv.org/project/linux-media/list/
-T: git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git
-S: Maintained
-F: drivers/media/platform/am437x/
-
-OV2659 OMNIVISION SENSOR DRIVER
-M: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
-L: linux-media@vger.kernel.org
-W: https://linuxtv.org
-Q: http://patchwork.linuxtv.org/project/linux-media/list/
-T: git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git
-S: Maintained
-F: drivers/media/i2c/ov2659.c
-F: include/media/i2c/ov2659.h
-
-SILICON MOTION SM712 FRAME BUFFER DRIVER
-M: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
-M: Teddy Wang <teddy.wang@siliconmotion.com>
-M: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
-L: linux-fbdev@vger.kernel.org
-S: Maintained
-F: drivers/video/fbdev/sm712*
-F: Documentation/fb/sm712fb.txt
-
SIS 190 ETHERNET DRIVER
M: Francois Romieu <romieu@fr.zoreil.com>
L: netdev@vger.kernel.org
@@ -11881,17 +12351,9 @@ L: linux-security-module@vger.kernel.org
W: http://schaufler-ca.com
T: git git://github.com/cschaufler/smack-next
S: Maintained
-F: Documentation/security/Smack.txt
+F: Documentation/admin-guide/LSM/Smack.rst
F: security/smack/
-DRIVERS FOR ADAPTIVE VOLTAGE SCALING (AVS)
-M: Kevin Hilman <khilman@kernel.org>
-M: Nishanth Menon <nm@ti.com>
-S: Maintained
-F: drivers/power/avs/
-F: include/linux/power/smartreflex.h
-L: linux-pm@vger.kernel.org
-
SMC91x ETHERNET DRIVER
M: Nicolas Pitre <nico@fluxnic.net>
S: Odd Fixes
@@ -11929,6 +12391,12 @@ S: Supported
F: Documentation/hwmon/sch5627
F: drivers/hwmon/sch5627.c
+SMSC UFX6000 and UFX7000 USB to VGA DRIVER
+M: Steve Glendinning <steve.glendinning@shawell.net>
+L: linux-fbdev@vger.kernel.org
+S: Maintained
+F: drivers/video/fbdev/smscufx.c
+
SMSC47B397 HARDWARE MONITOR DRIVER
M: Jean Delvare <jdelvare@suse.com>
L: linux-hwmon@vger.kernel.org
@@ -11949,12 +12417,6 @@ L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/ethernet/smsc/smsc9420.*
-SMSC UFX6000 and UFX7000 USB to VGA DRIVER
-M: Steve Glendinning <steve.glendinning@shawell.net>
-L: linux-fbdev@vger.kernel.org
-S: Maintained
-F: drivers/video/fbdev/smscufx.c
-
SOC-CAMERA V4L2 SUBSYSTEM
M: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
L: linux-media@vger.kernel.org
@@ -11969,10 +12431,20 @@ M: Chris Boot <bootc@bootc.net>
S: Maintained
F: drivers/leds/leds-net48xx.c
+SOFT-ROCE DRIVER (rxe)
+M: Moni Shoua <monis@mellanox.com>
+L: linux-rdma@vger.kernel.org
+S: Supported
+W: https://github.com/SoftRoCE/rxe-dev/wiki/rxe-dev:-Home
+Q: http://patchwork.kernel.org/project/linux-rdma/list/
+F: drivers/infiniband/sw/rxe/
+F: include/uapi/rdma/rdma_user_rxe.h
+
SOFTLOGIC 6x10 MPEG CODEC
M: Bluecherry Maintainers <maintainers@bluecherrydvr.com>
+M: Anton Sviridenko <anton@corp.bluecherry.net>
M: Andrey Utkin <andrey.utkin@corp.bluecherry.net>
-M: Andrey Utkin <andrey.krieger.utkin@gmail.com>
+M: Andrey Utkin <andrey_utkin@fastmail.com>
M: Ismael Luceno <ismael@iodev.co.uk>
L: linux-media@vger.kernel.org
S: Supported
@@ -12000,16 +12472,6 @@ S: Maintained
F: drivers/ssb/
F: include/linux/ssb/
-SONY VAIO CONTROL DEVICE DRIVER
-M: Mattia Dongili <malattia@linux.it>
-L: platform-driver-x86@vger.kernel.org
-W: http://www.linux.it/~malattia/wiki/index.php/Sony_drivers
-S: Maintained
-F: Documentation/laptops/sony-laptop.txt
-F: drivers/char/sonypi.c
-F: drivers/platform/x86/sony-laptop.c
-F: include/linux/sony-laptop.h
-
SONY MEMORYSTICK CARD SUPPORT
M: Alex Dubov <oakad@yahoo.com>
W: http://tifmxx.berlios.de/
@@ -12021,6 +12483,16 @@ M: Maxim Levitsky <maximlevitsky@gmail.com>
S: Maintained
F: drivers/memstick/core/ms_block.*
+SONY VAIO CONTROL DEVICE DRIVER
+M: Mattia Dongili <malattia@linux.it>
+L: platform-driver-x86@vger.kernel.org
+W: http://www.linux.it/~malattia/wiki/index.php/Sony_drivers
+S: Maintained
+F: Documentation/laptops/sony-laptop.txt
+F: drivers/char/sonypi.c
+F: drivers/platform/x86/sony-laptop.c
+F: include/linux/sony-laptop.h
+
SOUND
M: Jaroslav Kysela <perex@perex.cz>
M: Takashi Iwai <tiwai@suse.com>
@@ -12046,6 +12518,13 @@ F: include/uapi/sound/compress_*
F: sound/core/compress_offload.c
F: sound/soc/soc-compress.c
+SOUND - DMAENGINE HELPERS
+M: Lars-Peter Clausen <lars@metafoo.de>
+S: Supported
+F: include/sound/dmaengine_pcm.h
+F: sound/core/pcm_dmaengine.c
+F: sound/soc/soc-generic-dmaengine-pcm.c
+
SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEMENT (ASoC)
M: Liam Girdwood <lgirdwood@gmail.com>
M: Mark Brown <broonie@kernel.org>
@@ -12058,13 +12537,6 @@ F: Documentation/sound/alsa/soc/
F: sound/soc/
F: include/sound/soc*
-SOUND - DMAENGINE HELPERS
-M: Lars-Peter Clausen <lars@metafoo.de>
-S: Supported
-F: include/sound/dmaengine_pcm.h
-F: sound/core/pcm_dmaengine.c
-F: sound/soc/soc-generic-dmaengine-pcm.c
-
SP2 MEDIA DRIVER
M: Olli Salonen <olli.salonen@iki.fi>
L: linux-media@vger.kernel.org
@@ -12097,6 +12569,7 @@ F: drivers/tty/serial/sunsab.h
F: drivers/tty/serial/sunsu.c
F: drivers/tty/serial/sunzilog.c
F: drivers/tty/serial/sunzilog.h
+F: drivers/tty/vcc.c
SPARSE CHECKER
M: "Christopher Li" <sparse@chrisli.org>
@@ -12107,21 +12580,21 @@ T: git git://git.kernel.org/pub/scm/devel/sparse/chrisl/sparse.git
S: Maintained
F: include/linux/compiler.h
-SPEAR PLATFORM SUPPORT
+SPEAR CLOCK FRAMEWORK SUPPORT
M: Viresh Kumar <vireshk@kernel.org>
-M: Shiraz Hashim <shiraz.linux.kernel@gmail.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
W: http://www.st.com/spear
S: Maintained
-F: arch/arm/boot/dts/spear*
-F: arch/arm/mach-spear/
+F: drivers/clk/spear/
-SPEAR CLOCK FRAMEWORK SUPPORT
+SPEAR PLATFORM SUPPORT
M: Viresh Kumar <vireshk@kernel.org>
+M: Shiraz Hashim <shiraz.linux.kernel@gmail.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
W: http://www.st.com/spear
S: Maintained
-F: drivers/clk/spear/
+F: arch/arm/boot/dts/spear*
+F: arch/arm/mach-spear/
SPI NOR SUBSYSTEM
M: Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>
@@ -12129,7 +12602,8 @@ M: Marek Vasut <marek.vasut@gmail.com>
L: linux-mtd@lists.infradead.org
W: http://www.linux-mtd.infradead.org/
Q: http://patchwork.ozlabs.org/project/linux-mtd/list/
-T: git git://github.com/spi-nor/linux.git
+T: git git://git.infradead.org/linux-mtd.git spi-nor/fixes
+T: git git://git.infradead.org/l2-mtd.git spi-nor/next
S: Maintained
F: drivers/mtd/spi-nor/
F: include/linux/mtd/spi-nor.h
@@ -12154,6 +12628,15 @@ S: Supported
F: Documentation/networking/spider_net.txt
F: drivers/net/ethernet/toshiba/spider_net*
+SPMI SUBSYSTEM
+R: Stephen Boyd <sboyd@codeaurora.org>
+L: linux-arm-msm@vger.kernel.org
+F: Documentation/devicetree/bindings/spmi/
+F: drivers/spmi/
+F: include/dt-bindings/spmi/spmi.h
+F: include/linux/spmi.h
+F: include/trace/events/spmi.h
+
SPU FILE SYSTEM
M: Jeremy Kerr <jk@ozlabs.org>
L: linuxppc-dev@lists.ozlabs.org
@@ -12182,13 +12665,6 @@ L: stable@vger.kernel.org
S: Supported
F: Documentation/process/stable-kernel-rules.rst
-STAGING SUBSYSTEM
-M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
-L: devel@driverdev.osuosl.org
-S: Supported
-F: drivers/staging/
-
STAGING - COMEDI
M: Ian Abbott <abbotti@mev.co.uk>
M: H Hartley Sweeten <hsweeten@visionengravers.com>
@@ -12278,11 +12754,45 @@ M: Arnaud Patard <arnaud.patard@rtp-net.org>
S: Odd Fixes
F: drivers/staging/xgifb/
+STAGING SUBSYSTEM
+M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
+L: devel@driverdev.osuosl.org
+S: Supported
+F: drivers/staging/
+
STARFIRE/DURALAN NETWORK DRIVER
M: Ion Badulescu <ionut@badula.org>
S: Odd Fixes
F: drivers/net/ethernet/adaptec/starfire*
+STEC S1220 SKD DRIVER
+M: Bart Van Assche <bart.vanassche@wdc.com>
+L: linux-block@vger.kernel.org
+S: Maintained
+F: drivers/block/skd*[ch]
+
+STI CEC DRIVER
+M: Benjamin Gaignard <benjamin.gaignard@linaro.org>
+S: Maintained
+F: drivers/staging/media/st-cec/
+F: Documentation/devicetree/bindings/media/stih-cec.txt
+
+STK1160 USB VIDEO CAPTURE DRIVER
+M: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
+L: linux-media@vger.kernel.org
+T: git git://linuxtv.org/media_tree.git
+S: Maintained
+F: drivers/media/usb/stk1160/
+
+STMMAC ETHERNET DRIVER
+M: Giuseppe Cavallaro <peppe.cavallaro@st.com>
+M: Alexandre Torgue <alexandre.torgue@st.com>
+L: netdev@vger.kernel.org
+W: http://www.stlinux.com
+S: Supported
+F: drivers/net/ethernet/stmicro/stmmac/
+
SUN3/3X
M: Sam Creasey <sammy@sammy.net>
W: http://sammy.net/sun3/
@@ -12354,6 +12864,20 @@ S: Supported
F: net/switchdev/
F: include/net/switchdev.h
+SYNC FILE FRAMEWORK
+M: Sumit Semwal <sumit.semwal@linaro.org>
+R: Gustavo Padovan <gustavo@padovan.org>
+S: Maintained
+L: linux-media@vger.kernel.org
+L: dri-devel@lists.freedesktop.org
+F: drivers/dma-buf/sync_*
+F: drivers/dma-buf/dma-fence*
+F: drivers/dma-buf/sw_sync.c
+F: include/linux/sync_file.h
+F: include/uapi/linux/sync_file.h
+F: Documentation/sync_file.txt
+T: git git://anongit.freedesktop.org/drm/drm-misc
+
SYNOPSYS ARC ARCHITECTURE
M: Vineet Gupta <vgupta@synopsys.com>
L: linux-snps-arc@lists.infradead.org
@@ -12365,6 +12889,18 @@ F: drivers/clocksource/arc_timer.c
F: drivers/tty/serial/arc_uart.c
T: git git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc.git
+SYNOPSYS ARC HSDK SDP pll clock driver
+M: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
+S: Supported
+F: drivers/clk/clk-hsdk-pll.c
+F: Documentation/devicetree/bindings/clock/snps,hsdk-pll-clock.txt
+
+SYNOPSYS ARC SDP clock driver
+M: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
+S: Supported
+F: drivers/clk/axs10x/*
+F: Documentation/devicetree/bindings/clock/snps,pll-clock.txt
+
SYNOPSYS ARC SDP platform support
M: Alexey Brodkin <abrodkin@synopsys.com>
S: Supported
@@ -12372,6 +12908,42 @@ F: arch/arc/plat-axs10x
F: arch/arc/boot/dts/ax*
F: Documentation/devicetree/bindings/arc/axs10*
+SYNOPSYS DESIGNWARE DMAC DRIVER
+M: Viresh Kumar <vireshk@kernel.org>
+M: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+S: Maintained
+F: include/linux/dma/dw.h
+F: include/linux/platform_data/dma-dw.h
+F: drivers/dma/dw/
+
+SYNOPSYS DESIGNWARE ENTERPRISE ETHERNET DRIVER
+M: Jie Deng <jiedeng@synopsys.com>
+L: netdev@vger.kernel.org
+S: Supported
+F: drivers/net/ethernet/synopsys/
+
+SYNOPSYS DESIGNWARE I2C DRIVER
+M: Jarkko Nikula <jarkko.nikula@linux.intel.com>
+R: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+R: Mika Westerberg <mika.westerberg@linux.intel.com>
+L: linux-i2c@vger.kernel.org
+S: Maintained
+F: drivers/i2c/busses/i2c-designware-*
+F: include/linux/platform_data/i2c-designware.h
+
+SYNOPSYS DESIGNWARE MMC/SD/SDIO DRIVER
+M: Jaehoon Chung <jh80.chung@samsung.com>
+L: linux-mmc@vger.kernel.org
+S: Maintained
+F: drivers/mmc/host/dw_mmc*
+
+SYNOPSYS HSDK RESET CONTROLLER DRIVER
+M: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
+S: Supported
+F: drivers/reset/reset-hsdk.c
+F: include/dt-bindings/reset/snps,hsdk-reset.h
+F: Documentation/devicetree/bindings/reset/snps,hsdk-reset.txt
+
SYSTEM CONFIGURATION (SYSCON)
M: Lee Jones <lee.jones@linaro.org>
M: Arnd Bergmann <arnd@arndb.de>
@@ -12379,6 +12951,16 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git
S: Supported
F: drivers/mfd/syscon.c
+SYSTEM CONTROL & POWER INTERFACE (SCPI) Message Protocol drivers
+M: Sudeep Holla <sudeep.holla@arm.com>
+L: linux-arm-kernel@lists.infradead.org
+S: Maintained
+F: Documentation/devicetree/bindings/arm/arm,scpi.txt
+F: drivers/clk/clk-scpi.c
+F: drivers/cpufreq/scpi-cpufreq.c
+F: drivers/firmware/arm_scpi.c
+F: include/linux/scpi_protocol.h
+
SYSTEM RESET/SHUTDOWN DRIVERS
M: Sebastian Reichel <sre@kernel.org>
L: linux-pm@vger.kernel.org
@@ -12387,6 +12969,15 @@ S: Maintained
F: Documentation/devicetree/bindings/power/reset/
F: drivers/power/reset/
+SYSTEM TRACE MODULE CLASS
+M: Alexander Shishkin <alexander.shishkin@linux.intel.com>
+S: Maintained
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/ash/stm.git
+F: Documentation/trace/stm.txt
+F: drivers/hwtracing/stm/
+F: include/linux/stm.h
+F: include/uapi/linux/stm.h
+
SYSV FILESYSTEM
M: Christoph Hellwig <hch@infradead.org>
S: Maintained
@@ -12556,6 +13147,14 @@ L: linux-media@vger.kernel.org
S: Maintained
F: drivers/media/rc/ttusbir.c
+TEE SUBSYSTEM
+M: Jens Wiklander <jens.wiklander@linaro.org>
+S: Maintained
+F: include/linux/tee_drv.h
+F: include/uapi/linux/tee.h
+F: drivers/tee/
+F: Documentation/tee.txt
+
TEGRA ARCHITECTURE SUPPORT
M: Thierry Reding <thierry.reding@gmail.com>
M: Jonathan Hunter <jonathanh@nvidia.com>
@@ -12640,6 +13239,10 @@ F: include/linux/soc/ti/ti_sci_protocol.h
F: Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
F: include/dt-bindings/genpd/k2g.h
F: drivers/soc/ti/ti_sci_pm_domains.c
+F: Documentation/devicetree/bindings/reset/ti,sci-reset.txt
+F: Documentation/devicetree/bindings/clock/ti,sci-clk.txt
+F: drivers/clk/keystone/sci-clk.c
+F: drivers/reset/reset-ti-sci.c
THANKO'S RAREMONO AM/FM/SW RADIO RECEIVER USB DRIVER
M: Hans Verkuil <hverkuil@xs4all.nl>
@@ -12683,6 +13286,28 @@ T: git git://repo.or.cz/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git
S: Maintained
F: drivers/platform/x86/thinkpad_acpi.c
+THUNDERBOLT DRIVER
+M: Andreas Noever <andreas.noever@gmail.com>
+M: Michael Jamet <michael.jamet@intel.com>
+M: Mika Westerberg <mika.westerberg@linux.intel.com>
+M: Yehezkel Bernat <yehezkel.bernat@intel.com>
+S: Maintained
+F: drivers/thunderbolt/
+
+THUNDERX GPIO DRIVER
+M: David Daney <david.daney@cavium.com>
+S: Maintained
+F: drivers/gpio/gpio-thunderx.c
+
+TI AM437X VPFE DRIVER
+M: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
+L: linux-media@vger.kernel.org
+W: https://linuxtv.org
+Q: http://patchwork.linuxtv.org/project/linux-media/list/
+T: git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git
+S: Maintained
+F: drivers/media/platform/am437x/
+
TI BANDGAP AND THERMAL DRIVER
M: Eduardo Valentin <edubezval@gmail.com>
M: Keerthy <j-keerthy@ti.com>
@@ -12691,13 +13316,11 @@ L: linux-omap@vger.kernel.org
S: Maintained
F: drivers/thermal/ti-soc-thermal/
-TI VPE/CAL DRIVERS
-M: Benoit Parrot <bparrot@ti.com>
-L: linux-media@vger.kernel.org
-W: http://linuxtv.org/
-Q: http://patchwork.linuxtv.org/project/linux-media/list/
-S: Maintained
-F: drivers/media/platform/ti-vpe/
+TI BQ27XXX POWER SUPPLY DRIVER
+R: Andrew F. Davis <afd@ti.com>
+F: include/linux/power/bq27xxx_battery.h
+F: drivers/power/supply/bq27xxx_battery.c
+F: drivers/power/supply/bq27xxx_battery_i2c.c
TI CDCE706 CLOCK DRIVER
M: Max Filippov <jcmvbkbc@gmail.com>
@@ -12711,6 +13334,33 @@ S: Maintained
F: drivers/clk/ti/
F: include/linux/clk/ti.h
+TI DAVINCI MACHINE SUPPORT
+M: Sekhar Nori <nsekhar@ti.com>
+M: Kevin Hilman <khilman@kernel.org>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci.git
+S: Supported
+F: arch/arm/mach-davinci/
+F: drivers/i2c/busses/i2c-davinci.c
+F: arch/arm/boot/dts/da850*
+
+TI DAVINCI SERIES GPIO DRIVER
+M: Keerthy <j-keerthy@ti.com>
+L: linux-gpio@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/gpio/gpio-davinci.txt
+F: drivers/gpio/gpio-davinci.c
+
+TI DAVINCI SERIES MEDIA DRIVER
+M: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
+L: linux-media@vger.kernel.org
+W: https://linuxtv.org
+Q: http://patchwork.linuxtv.org/project/linux-media/list/
+T: git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git
+S: Maintained
+F: drivers/media/platform/davinci/
+F: include/media/davinci/
+
TI ETHERNET SWITCH DRIVER (CPSW)
R: Grygorii Strashko <grygorii.strashko@ti.com>
L: linux-omap@vger.kernel.org
@@ -12734,7 +13384,6 @@ S: Maintained
F: drivers/soc/ti/*
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone.git
-
TI LM49xxx FAMILY ASoC CODEC DRIVERS
M: M R Swami Reddy <mr.swami.reddy@ti.com>
M: Vishwas A Deshpande <vishwas.a.deshpande@ti.com>
@@ -12779,12 +13428,28 @@ L: alsa-devel@alsa-project.org (moderated for non-subscribers)
S: Odd Fixes
F: sound/soc/codecs/tas571x*
+TI TRF7970A NFC DRIVER
+M: Mark Greer <mgreer@animalcreek.com>
+L: linux-wireless@vger.kernel.org
+L: linux-nfc@lists.01.org (moderated for non-subscribers)
+S: Supported
+F: drivers/nfc/trf7970a.c
+F: Documentation/devicetree/bindings/net/nfc/trf7970a.txt
+
TI TWL4030 SERIES SOC CODEC DRIVER
M: Peter Ujfalusi <peter.ujfalusi@ti.com>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
S: Maintained
F: sound/soc/codecs/twl4030*
+TI VPE/CAL DRIVERS
+M: Benoit Parrot <bparrot@ti.com>
+L: linux-media@vger.kernel.org
+W: http://linuxtv.org/
+Q: http://patchwork.linuxtv.org/project/linux-media/list/
+S: Maintained
+F: drivers/media/platform/ti-vpe/
+
TI WILINK WIRELESS DRIVERS
L: linux-wireless@vger.kernel.org
W: http://wireless.kernel.org/en/users/Drivers/wl12xx
@@ -12794,16 +13459,6 @@ S: Orphan
F: drivers/net/wireless/ti/
F: include/linux/wl12xx.h
-TIPC NETWORK LAYER
-M: Jon Maloy <jon.maloy@ericsson.com>
-M: Ying Xue <ying.xue@windriver.com>
-L: netdev@vger.kernel.org (core kernel code)
-L: tipc-discussion@lists.sourceforge.net (user apps, general discussion)
-W: http://tipc.sourceforge.net/
-S: Maintained
-F: include/uapi/linux/tipc*.h
-F: net/tipc/
-
TILE ARCHITECTURE
M: Chris Metcalf <cmetcalf@mellanox.com>
W: http://www.mellanox.com/repository/solutions/tile-scm/
@@ -12819,6 +13474,34 @@ F: drivers/tty/serial/tilegx.c
F: drivers/usb/host/*-tilegx.c
F: include/linux/usb/tilegx.h
+TIMEKEEPING, CLOCKSOURCE CORE, NTP, ALARMTIMER
+M: John Stultz <john.stultz@linaro.org>
+M: Thomas Gleixner <tglx@linutronix.de>
+R: Stephen Boyd <sboyd@codeaurora.org>
+L: linux-kernel@vger.kernel.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core
+S: Supported
+F: include/linux/clocksource.h
+F: include/linux/time.h
+F: include/linux/timex.h
+F: include/uapi/linux/time.h
+F: include/uapi/linux/timex.h
+F: kernel/time/clocksource.c
+F: kernel/time/time*.c
+F: kernel/time/alarmtimer.c
+F: kernel/time/ntp.c
+F: tools/testing/selftests/timers/
+
+TIPC NETWORK LAYER
+M: Jon Maloy <jon.maloy@ericsson.com>
+M: Ying Xue <ying.xue@windriver.com>
+L: netdev@vger.kernel.org (core kernel code)
+L: tipc-discussion@lists.sourceforge.net (user apps, general discussion)
+W: http://tipc.sourceforge.net/
+S: Maintained
+F: include/uapi/linux/tipc*.h
+F: net/tipc/
+
TLAN NETWORK DRIVER
M: Samuel Chessman <chessman@tux.org>
L: tlan-devel@lists.sourceforge.net (subscribers-only)
@@ -12827,6 +13510,38 @@ S: Maintained
F: Documentation/networking/tlan.txt
F: drivers/net/ethernet/ti/tlan.*
+TM6000 VIDEO4LINUX DRIVER
+M: Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M: Mauro Carvalho Chehab <mchehab@kernel.org>
+L: linux-media@vger.kernel.org
+W: https://linuxtv.org
+T: git git://linuxtv.org/media_tree.git
+S: Odd fixes
+F: drivers/media/usb/tm6000/
+F: Documentation/media/v4l-drivers/tm6000*
+
+TMIO/SDHI MMC DRIVER
+M: Wolfram Sang <wsa+renesas@sang-engineering.com>
+L: linux-mmc@vger.kernel.org
+S: Supported
+F: drivers/mmc/host/tmio_mmc*
+F: drivers/mmc/host/renesas_sdhi*
+F: include/linux/mfd/tmio.h
+
+TMP401 HARDWARE MONITOR DRIVER
+M: Guenter Roeck <linux@roeck-us.net>
+L: linux-hwmon@vger.kernel.org
+S: Maintained
+F: Documentation/hwmon/tmp401
+F: drivers/hwmon/tmp401.c
+
+TMPFS (SHMEM FILESYSTEM)
+M: Hugh Dickins <hughd@google.com>
+L: linux-mm@kvack.org
+S: Maintained
+F: include/linux/shmem_fs.h
+F: mm/shmem.c
+
TOMOYO SECURITY MODULE
M: Kentaro Takeda <takedakn@nttdata.co.jp>
M: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
@@ -12863,12 +13578,6 @@ L: platform-driver-x86@vger.kernel.org
S: Maintained
F: drivers/platform/x86/toshiba_haps.c
-TOSHIBA WMI HOTKEYS DRIVER
-M: Azael Avalos <coproscefalo@gmail.com>
-L: platform-driver-x86@vger.kernel.org
-S: Maintained
-F: drivers/platform/x86/toshiba-wmi.c
-
TOSHIBA SMM DRIVER
M: Jonathan Buzzard <jonathan@buzzard.org.uk>
W: http://www.buzzard.org.uk/toshiba/
@@ -12884,61 +13593,11 @@ S: Maintained
F: drivers/media/i2c/tc358743*
F: include/media/i2c/tc358743.h
-TMIO/SDHI MMC DRIVER
-M: Wolfram Sang <wsa+renesas@sang-engineering.com>
-L: linux-mmc@vger.kernel.org
-S: Supported
-F: drivers/mmc/host/tmio_mmc*
-F: drivers/mmc/host/sh_mobile_sdhi.c
-F: include/linux/mfd/tmio.h
-
-TMP401 HARDWARE MONITOR DRIVER
-M: Guenter Roeck <linux@roeck-us.net>
-L: linux-hwmon@vger.kernel.org
-S: Maintained
-F: Documentation/hwmon/tmp401
-F: drivers/hwmon/tmp401.c
-
-TMPFS (SHMEM FILESYSTEM)
-M: Hugh Dickins <hughd@google.com>
-L: linux-mm@kvack.org
-S: Maintained
-F: include/linux/shmem_fs.h
-F: mm/shmem.c
-
-TM6000 VIDEO4LINUX DRIVER
-M: Mauro Carvalho Chehab <mchehab@s-opensource.com>
-M: Mauro Carvalho Chehab <mchehab@kernel.org>
-L: linux-media@vger.kernel.org
-W: https://linuxtv.org
-T: git git://linuxtv.org/media_tree.git
-S: Odd fixes
-F: drivers/media/usb/tm6000/
-F: Documentation/media/v4l-drivers/tm6000*
-
-TW5864 VIDEO4LINUX DRIVER
-M: Bluecherry Maintainers <maintainers@bluecherrydvr.com>
-M: Andrey Utkin <andrey.utkin@corp.bluecherry.net>
-M: Andrey Utkin <andrey_utkin@fastmail.com>
-L: linux-media@vger.kernel.org
-S: Supported
-F: drivers/media/pci/tw5864/
-
-TW68 VIDEO4LINUX DRIVER
-M: Hans Verkuil <hverkuil@xs4all.nl>
-L: linux-media@vger.kernel.org
-T: git git://linuxtv.org/media_tree.git
-W: https://linuxtv.org
-S: Odd Fixes
-F: drivers/media/pci/tw68/
-
-TW686X VIDEO4LINUX DRIVER
-M: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
-L: linux-media@vger.kernel.org
-T: git git://linuxtv.org/media_tree.git
-W: http://linuxtv.org
+TOSHIBA WMI HOTKEYS DRIVER
+M: Azael Avalos <coproscefalo@gmail.com>
+L: platform-driver-x86@vger.kernel.org
S: Maintained
-F: drivers/media/pci/tw686x/
+F: drivers/platform/x86/toshiba-wmi.c
TPM DEVICE DRIVER
M: Peter Huewe <peterhuewe@gmx.de>
@@ -13040,6 +13699,31 @@ S: Maintained
F: drivers/tc/
F: include/linux/tc.h
+TW5864 VIDEO4LINUX DRIVER
+M: Bluecherry Maintainers <maintainers@bluecherrydvr.com>
+M: Anton Sviridenko <anton@corp.bluecherry.net>
+M: Andrey Utkin <andrey.utkin@corp.bluecherry.net>
+M: Andrey Utkin <andrey_utkin@fastmail.com>
+L: linux-media@vger.kernel.org
+S: Supported
+F: drivers/media/pci/tw5864/
+
+TW68 VIDEO4LINUX DRIVER
+M: Hans Verkuil <hverkuil@xs4all.nl>
+L: linux-media@vger.kernel.org
+T: git git://linuxtv.org/media_tree.git
+W: https://linuxtv.org
+S: Odd Fixes
+F: drivers/media/pci/tw68/
+
+TW686X VIDEO4LINUX DRIVER
+M: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
+L: linux-media@vger.kernel.org
+T: git git://linuxtv.org/media_tree.git
+W: http://linuxtv.org
+S: Maintained
+F: drivers/media/pci/tw686x/
+
UBI FILE SYSTEM (UBIFS)
M: Richard Weinberger <richard@nod.at>
M: Artem Bityutskiy <dedekind1@gmail.com>
@@ -13089,6 +13773,13 @@ S: Maintained
F: drivers/hid/uhid.c
F: include/uapi/linux/uhid.h
+ULPI BUS
+M: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+L: linux-usb@vger.kernel.org
+S: Maintained
+F: drivers/usb/common/ulpi.c
+F: include/linux/ulpi/
+
ULTRA-WIDEBAND (UWB) SUBSYSTEM:
L: linux-usb@vger.kernel.org
S: Orphan
@@ -13132,8 +13823,7 @@ F: Documentation/scsi/ufs.txt
F: drivers/scsi/ufs/
UNIVERSAL FLASH STORAGE HOST CONTROLLER DRIVER DWC HOOKS
-M: Manjunath M Bettegowda <manjumb@synopsys.com>
-M: Prabu Thangamuthu <prabut@synopsys.com>
+M: Joao Pinto <jpinto@synopsys.com>
L: linux-scsi@vger.kernel.org
S: Supported
F: drivers/scsi/ufs/*dwc*
@@ -13149,6 +13839,14 @@ F: drivers/mtd/ubi/
F: include/linux/mtd/ubi.h
F: include/uapi/mtd/ubi-user.h
+USB "USBNET" DRIVER FRAMEWORK
+M: Oliver Neukum <oneukum@suse.com>
+L: netdev@vger.kernel.org
+W: http://www.linux-usb.org/usbnet
+S: Maintained
+F: drivers/net/usb/usbnet.c
+F: include/linux/usb/usbnet.h
+
USB ACM DRIVER
M: Oliver Neukum <oneukum@suse.com>
L: linux-usb@vger.kernel.org
@@ -13372,14 +14070,6 @@ L: linux-usb@vger.kernel.org
S: Maintained
F: drivers/usb/host/uhci*
-USB "USBNET" DRIVER FRAMEWORK
-M: Oliver Neukum <oneukum@suse.com>
-L: netdev@vger.kernel.org
-W: http://www.linux-usb.org/usbnet
-S: Maintained
-F: drivers/net/usb/usbnet.c
-F: include/linux/usb/usbnet.h
-
USB VIDEO CLASS
M: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
L: linux-uvc-devel@lists.sourceforge.net (subscribers-only)
@@ -13434,13 +14124,6 @@ S: Maintained
F: Documentation/media/v4l-drivers/zr364xx*
F: drivers/media/usb/zr364xx/
-ULPI BUS
-M: Heikki Krogerus <heikki.krogerus@linux.intel.com>
-L: linux-usb@vger.kernel.org
-S: Maintained
-F: drivers/usb/common/ulpi.c
-F: include/linux/ulpi/
-
USER-MODE LINUX (UML)
M: Jeff Dike <jdike@addtoit.com>
M: Richard Weinberger <richard@nod.at>
@@ -13470,6 +14153,17 @@ W: http://en.wikipedia.org/wiki/Util-linux
T: git git://git.kernel.org/pub/scm/utils/util-linux/util-linux.git
S: Maintained
+UUID HELPERS
+M: Christoph Hellwig <hch@lst.de>
+R: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+L: linux-kernel@vger.kernel.org
+T: git git://git.infradead.org/users/hch/uuid.git
+F: lib/uuid.c
+F: lib/test_uuid.c
+F: include/linux/uuid.h
+F: include/uapi/linux/uuid.h
+S: Maintained
+
UVESAFB DRIVER
M: Michal Januszewski <spock@gentoo.org>
L: linux-fbdev@vger.kernel.org
@@ -13523,6 +14217,37 @@ F: drivers/gpu/vga/vga_switcheroo.c
F: include/linux/vga_switcheroo.h
T: git git://anongit.freedesktop.org/drm/drm-misc
+VIA RHINE NETWORK DRIVER
+S: Orphan
+F: drivers/net/ethernet/via/via-rhine.c
+
+VIA SD/MMC CARD CONTROLLER DRIVER
+M: Bruce Chang <brucechang@via.com.tw>
+M: Harald Welte <HaraldWelte@viatech.com>
+S: Maintained
+F: drivers/mmc/host/via-sdmmc.c
+
+VIA UNICHROME(PRO)/CHROME9 FRAMEBUFFER DRIVER
+M: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
+L: linux-fbdev@vger.kernel.org
+S: Maintained
+F: include/linux/via-core.h
+F: include/linux/via-gpio.h
+F: include/linux/via_i2c.h
+F: drivers/video/fbdev/via/
+
+VIA VELOCITY NETWORK DRIVER
+M: Francois Romieu <romieu@fr.zoreil.com>
+L: netdev@vger.kernel.org
+S: Maintained
+F: drivers/net/ethernet/via/via-velocity.*
+
+VIDEO MULTIPLEXER DRIVER
+M: Philipp Zabel <p.zabel@pengutronix.de>
+L: linux-media@vger.kernel.org
+S: Maintained
+F: drivers/media/platform/video-mux.c
+
VIDEOBUF2 FRAMEWORK
M: Pawel Osciak <pawel@osciak.com>
M: Marek Szyprowski <m.szyprowski@samsung.com>
@@ -13532,6 +14257,21 @@ S: Maintained
F: drivers/media/v4l2-core/videobuf2-*
F: include/media/videobuf2-*
+VIMC VIRTUAL MEDIA CONTROLLER DRIVER
+M: Helen Koike <helen.koike@collabora.com>
+L: linux-media@vger.kernel.org
+T: git git://linuxtv.org/media_tree.git
+W: https://linuxtv.org
+S: Maintained
+F: drivers/media/platform/vimc/*
+
+VIRT LIB
+M: Alex Williamson <alex.williamson@redhat.com>
+M: Paolo Bonzini <pbonzini@redhat.com>
+L: kvm@vger.kernel.org
+S: Supported
+F: virt/lib/
+
VIRTIO AND VHOST VSOCK DRIVER
M: Stefan Hajnoczi <stefanha@redhat.com>
L: kvm@vger.kernel.org
@@ -13548,12 +14288,6 @@ F: drivers/net/vsockmon.c
F: drivers/vhost/vsock.c
F: drivers/vhost/vsock.h
-VIRTUAL SERIO DEVICE DRIVER
-M: Stephen Chandler Paul <thatslyude@gmail.com>
-S: Maintained
-F: drivers/input/serio/userio.c
-F: include/uapi/linux/userio.h
-
VIRTIO CONSOLE DRIVER
M: Amit Shah <amit@kernel.org>
L: virtualization@lists.linux-foundation.org
@@ -13575,9 +14309,18 @@ F: drivers/block/virtio_blk.c
F: include/linux/virtio*.h
F: include/uapi/linux/virtio_*.h
F: drivers/crypto/virtio/
+F: mm/balloon_compaction.c
+
+VIRTIO CRYPTO DRIVER
+M: Gonglei <arei.gonglei@huawei.com>
+L: virtualization@lists.linux-foundation.org
+L: linux-crypto@vger.kernel.org
+S: Maintained
+F: drivers/crypto/virtio/
+F: include/uapi/linux/virtio_crypto.h
VIRTIO DRIVERS FOR S390
-M: Cornelia Huck <cornelia.huck@de.ibm.com>
+M: Cornelia Huck <cohuck@redhat.com>
M: Halil Pasic <pasic@linux.vnet.ibm.com>
L: linux-s390@vger.kernel.org
L: virtualization@lists.linux-foundation.org
@@ -13612,45 +14355,11 @@ S: Maintained
F: drivers/virtio/virtio_input.c
F: include/uapi/linux/virtio_input.h
-VIRTIO CRYPTO DRIVER
-M: Gonglei <arei.gonglei@huawei.com>
-L: virtualization@lists.linux-foundation.org
-L: linux-crypto@vger.kernel.org
-S: Maintained
-F: drivers/crypto/virtio/
-F: include/uapi/linux/virtio_crypto.h
-
-VIA RHINE NETWORK DRIVER
-S: Orphan
-F: drivers/net/ethernet/via/via-rhine.c
-
-VIA SD/MMC CARD CONTROLLER DRIVER
-M: Bruce Chang <brucechang@via.com.tw>
-M: Harald Welte <HaraldWelte@viatech.com>
-S: Maintained
-F: drivers/mmc/host/via-sdmmc.c
-
-VIA UNICHROME(PRO)/CHROME9 FRAMEBUFFER DRIVER
-M: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
-L: linux-fbdev@vger.kernel.org
-S: Maintained
-F: include/linux/via-core.h
-F: include/linux/via-gpio.h
-F: include/linux/via_i2c.h
-F: drivers/video/fbdev/via/
-
-VIA VELOCITY NETWORK DRIVER
-M: Francois Romieu <romieu@fr.zoreil.com>
-L: netdev@vger.kernel.org
+VIRTUAL SERIO DEVICE DRIVER
+M: Stephen Chandler Paul <thatslyude@gmail.com>
S: Maintained
-F: drivers/net/ethernet/via/via-velocity.*
-
-VIRT LIB
-M: Alex Williamson <alex.williamson@redhat.com>
-M: Paolo Bonzini <pbonzini@redhat.com>
-L: kvm@vger.kernel.org
-S: Supported
-F: virt/lib/
+F: drivers/input/serio/userio.c
+F: include/uapi/linux/userio.h
VIVID VIRTUAL VIDEO DRIVER
M: Hans Verkuil <hverkuil@xs4all.nl>
@@ -13660,14 +14369,6 @@ W: https://linuxtv.org
S: Maintained
F: drivers/media/platform/vivid/*
-VIMC VIRTUAL MEDIA CONTROLLER DRIVER
-M: Helen Koike <helen.koike@collabora.com>
-L: linux-media@vger.kernel.org
-T: git git://linuxtv.org/media_tree.git
-W: https://linuxtv.org
-S: Maintained
-F: drivers/media/platform/vimc/*
-
VLYNQ BUS
M: Florian Fainelli <f.fainelli@gmail.com>
L: openwrt-devel@lists.openwrt.org (subscribers-only)
@@ -13687,12 +14388,6 @@ F: drivers/staging/vme/
F: drivers/vme/
F: include/linux/vme*
-VMWARE HYPERVISOR INTERFACE
-M: Alok Kataria <akataria@vmware.com>
-L: virtualization@lists.linux-foundation.org
-S: Supported
-F: arch/x86/kernel/cpu/vmware.c
-
VMWARE BALLOON DRIVER
M: Xavier Deguillard <xdeguillard@vmware.com>
M: Philip Moltmann <moltmann@vmware.com>
@@ -13701,6 +14396,27 @@ L: linux-kernel@vger.kernel.org
S: Maintained
F: drivers/misc/vmw_balloon.c
+VMWARE HYPERVISOR INTERFACE
+M: Alok Kataria <akataria@vmware.com>
+L: virtualization@lists.linux-foundation.org
+S: Supported
+F: arch/x86/kernel/cpu/vmware.c
+
+VMWARE PVRDMA DRIVER
+M: Adit Ranadive <aditr@vmware.com>
+M: VMware PV-Drivers <pv-drivers@vmware.com>
+L: linux-rdma@vger.kernel.org
+S: Maintained
+F: drivers/infiniband/hw/vmw_pvrdma/
+
+VMware PVSCSI driver
+M: Jim Gill <jgill@vmware.com>
+M: VMware PV-Drivers <pv-drivers@vmware.com>
+L: linux-scsi@vger.kernel.org
+S: Maintained
+F: drivers/scsi/vmw_pvscsi.c
+F: drivers/scsi/vmw_pvscsi.h
+
VMWARE VMMOUSE SUBDRIVER
M: "VMware Graphics" <linux-graphics-maintainer@vmware.com>
M: "VMware, Inc." <pv-drivers@vmware.com>
@@ -13716,20 +14432,11 @@ L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/vmxnet3/
-VMware PVSCSI driver
-M: Jim Gill <jgill@vmware.com>
-M: VMware PV-Drivers <pv-drivers@vmware.com>
-L: linux-scsi@vger.kernel.org
-S: Maintained
-F: drivers/scsi/vmw_pvscsi.c
-F: drivers/scsi/vmw_pvscsi.h
-
-VMWARE PVRDMA DRIVER
-M: Adit Ranadive <aditr@vmware.com>
-M: VMware PV-Drivers <pv-drivers@vmware.com>
-L: linux-rdma@vger.kernel.org
+VOCORE VOCORE2 BOARD
+M: Harvey Hunt <harveyhuntnexus@gmail.com>
+L: linux-mips@linux-mips.org
S: Maintained
-F: drivers/infiniband/hw/vmw_pvrdma/
+F: arch/mips/boot/dts/ralink/vocore2.dts
VOLTAGE AND CURRENT REGULATOR FRAMEWORK
M: Liam Girdwood <lgirdwood@gmail.com>
@@ -13776,6 +14483,7 @@ M: Evgeniy Polyakov <zbr@ioremap.net>
S: Maintained
F: Documentation/w1/
F: drivers/w1/
+F: include/linux/w1.h
W83791D HARDWARE MONITORING DRIVER
M: Marc Hulsman <m.hulsman@tudelft.nl>
@@ -13822,12 +14530,39 @@ F: drivers/watchdog/
F: include/linux/watchdog.h
F: include/uapi/linux/watchdog.h
+WHISKEYCOVE PMIC GPIO DRIVER
+M: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
+L: linux-gpio@vger.kernel.org
+S: Maintained
+F: drivers/gpio/gpio-wcove.c
+
WIIMOTE HID DRIVER
M: David Herrmann <dh.herrmann@googlemail.com>
L: linux-input@vger.kernel.org
S: Maintained
F: drivers/hid/hid-wiimote*
+WILOCITY WIL6210 WIRELESS DRIVER
+M: Maya Erez <qca_merez@qca.qualcomm.com>
+L: linux-wireless@vger.kernel.org
+L: wil6210@qca.qualcomm.com
+S: Supported
+W: http://wireless.kernel.org/en/users/Drivers/wil6210
+F: drivers/net/wireless/ath/wil6210/
+F: include/uapi/linux/wil6210_uapi.h
+
+WIMAX STACK
+M: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
+M: linux-wimax@intel.com
+L: wimax@linuxwimax.org (subscribers-only)
+S: Supported
+W: http://linuxwimax.org
+F: Documentation/wimax/README.wimax
+F: include/linux/wimax/debug.h
+F: include/net/wimax.h
+F: include/uapi/linux/wimax.h
+F: net/wimax/
+
WINBOND CIR DRIVER
M: David Härdeman <david@hardeman.nu>
S: Maintained
@@ -13845,18 +14580,6 @@ L: linux-gpio@vger.kernel.org
S: Maintained
F: drivers/gpio/gpio-ws16c48.c
-WIMAX STACK
-M: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
-M: linux-wimax@intel.com
-L: wimax@linuxwimax.org (subscribers-only)
-S: Supported
-W: http://linuxwimax.org
-F: Documentation/wimax/README.wimax
-F: include/linux/wimax/debug.h
-F: include/net/wimax.h
-F: include/uapi/linux/wimax.h
-F: net/wimax/
-
WISTRON LAPTOP BUTTON DRIVER
M: Miloslav Trmac <mitr@volny.cz>
S: Maintained
@@ -13941,15 +14664,6 @@ S: Maintained
F: Documentation/x86/
F: arch/x86/
-X86 PLATFORM DRIVERS
-M: Darren Hart <dvhart@infradead.org>
-M: Andy Shevchenko <andy@infradead.org>
-L: platform-driver-x86@vger.kernel.org
-T: git git://git.infradead.org/users/dvhart/linux-platform-drivers-x86.git
-S: Maintained
-F: drivers/platform/x86/
-F: drivers/platform/olpc/
-
X86 MCE INFRASTRUCTURE
M: Tony Luck <tony.luck@intel.com>
M: Borislav Petkov <bp@alien8.de>
@@ -13962,6 +14676,15 @@ M: Borislav Petkov <bp@alien8.de>
S: Maintained
F: arch/x86/kernel/cpu/microcode/*
+X86 PLATFORM DRIVERS
+M: Darren Hart <dvhart@infradead.org>
+M: Andy Shevchenko <andy@infradead.org>
+L: platform-driver-x86@vger.kernel.org
+T: git git://git.infradead.org/users/dvhart/linux-platform-drivers-x86.git
+S: Maintained
+F: drivers/platform/x86/
+F: drivers/platform/olpc/
+
X86 VDSO
M: Andy Lutomirski <luto@amacapital.net>
L: linux-kernel@vger.kernel.org
@@ -13978,18 +14701,13 @@ T: git git://linuxtv.org/media_tree.git
S: Maintained
F: drivers/media/tuners/tuner-xc2028.*
-XEN HYPERVISOR INTERFACE
-M: Boris Ostrovsky <boris.ostrovsky@oracle.com>
-M: Juergen Gross <jgross@suse.com>
+XEN BLOCK SUBSYSTEM
+M: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+M: Roger Pau Monné <roger.pau@citrix.com>
L: xen-devel@lists.xenproject.org (moderated for non-subscribers)
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git
S: Supported
-F: arch/x86/xen/
-F: drivers/*/xen-*front.c
-F: drivers/xen/
-F: arch/x86/include/asm/xen/
-F: include/xen/
-F: include/uapi/xen/
+F: drivers/block/xen-blkback/*
+F: drivers/block/xen*
XEN HYPERVISOR ARM
M: Stefano Stabellini <sstabellini@kernel.org>
@@ -14005,6 +14723,21 @@ S: Maintained
F: arch/arm64/xen/
F: arch/arm64/include/asm/xen/
+XEN HYPERVISOR INTERFACE
+M: Boris Ostrovsky <boris.ostrovsky@oracle.com>
+M: Juergen Gross <jgross@suse.com>
+L: xen-devel@lists.xenproject.org (moderated for non-subscribers)
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git
+S: Supported
+F: arch/x86/xen/
+F: drivers/*/xen-*front.c
+F: drivers/xen/
+F: arch/x86/include/asm/xen/
+F: include/xen/
+F: include/uapi/xen/
+F: Documentation/ABI/stable/sysfs-hypervisor-xen
+F: Documentation/ABI/testing/sysfs-hypervisor-xen
+
XEN NETWORK BACKEND DRIVER
M: Wei Liu <wei.liu2@citrix.com>
M: Paul Durrant <paul.durrant@citrix.com>
@@ -14020,14 +14753,6 @@ S: Supported
F: arch/x86/pci/*xen*
F: drivers/pci/*xen*
-XEN BLOCK SUBSYSTEM
-M: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
-M: Roger Pau Monné <roger.pau@citrix.com>
-L: xen-devel@lists.xenproject.org (moderated for non-subscribers)
-S: Supported
-F: drivers/block/xen-blkback/*
-F: drivers/block/xen*
-
XEN PVSCSI DRIVERS
M: Juergen Gross <jgross@suse.com>
L: xen-devel@lists.xenproject.org (moderated for non-subscribers)
@@ -14082,6 +14807,14 @@ L: linux-kernel@vger.kernel.org
S: Supported
F: drivers/char/xillybus/
+XRA1403 GPIO EXPANDER
+M: Nandor Han <nandor.han@ge.com>
+M: Semi Malinen <semi.malinen@ge.com>
+L: linux-gpio@vger.kernel.org
+S: Maintained
+F: drivers/gpio/gpio-xra1403.c
+F: Documentation/devicetree/bindings/gpio/gpio-xra1403.txt
+
XTENSA XTFPGA PLATFORM SUPPORT
M: Max Filippov <jcmvbkbc@gmail.com>
L: linux-xtensa@linux-xtensa.org
@@ -14096,6 +14829,13 @@ S: Maintained
F: drivers/net/hamradio/yam*
F: include/linux/yam.h
+YAMA SECURITY MODULE
+M: Kees Cook <keescook@chromium.org>
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git yama/tip
+S: Supported
+F: security/yama/
+F: Documentation/admin-guide/LSM/Yama.rst
+
YEALINK PHONE DRIVER
M: Henk Vergonet <Henk.Vergonet@gmail.com>
L: usbb2k-api-dev@nongnu.org
@@ -14130,23 +14870,23 @@ L: zd1211-devs@lists.sourceforge.net (subscribers-only)
S: Maintained
F: drivers/net/wireless/zydas/zd1211rw/
-ZD1301_DEMOD MEDIA DRIVER
+ZD1301 MEDIA DRIVER
M: Antti Palosaari <crope@iki.fi>
L: linux-media@vger.kernel.org
W: https://linuxtv.org/
W: http://palosaari.fi/linux/
Q: https://patchwork.linuxtv.org/project/linux-media/list/
S: Maintained
-F: drivers/media/dvb-frontends/zd1301_demod*
+F: drivers/media/usb/dvb-usb-v2/zd1301*
-ZD1301 MEDIA DRIVER
+ZD1301_DEMOD MEDIA DRIVER
M: Antti Palosaari <crope@iki.fi>
L: linux-media@vger.kernel.org
W: https://linuxtv.org/
W: http://palosaari.fi/linux/
Q: https://patchwork.linuxtv.org/project/linux-media/list/
S: Maintained
-F: drivers/media/usb/dvb-usb-v2/zd1301*
+F: drivers/media/dvb-frontends/zd1301_demod*
ZPOOL COMPRESSED PAGE STORAGE API
M: Dan Streetman <ddstreet@ieee.org>
diff --git a/Makefile b/Makefile
index 283c6236438e..46bfb0ed2257 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 4
-PATCHLEVEL = 12
+PATCHLEVEL = 14
SUBLEVEL = 0
-EXTRAVERSION =
+EXTRAVERSION = -rc5
NAME = Fearless Coyote
# *DOCUMENTATION*
@@ -84,17 +84,10 @@ endif
# If the user is running make -s (silent mode), suppress echoing of
# commands
-ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
-ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
+ifneq ($(findstring s,$(filter-out --%,$(MAKEFLAGS))),)
quiet=silent_
tools_silent=s
endif
-else # make-3.8x
-ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
- quiet=silent_
- tools_silent=-s
-endif
-endif
export quiet Q KBUILD_VERBOSE
@@ -113,8 +106,8 @@ export quiet Q KBUILD_VERBOSE
# The O= assignment takes precedence over the KBUILD_OUTPUT environment
# variable.
-# KBUILD_SRC is set on invocation of make in OBJ directory
-# KBUILD_SRC is not intended to be used by the regular user (for now)
+# KBUILD_SRC is not intended to be used by the regular user (for now),
+# it is set on invocation of make with KBUILD_OUTPUT or O= specified.
ifeq ($(KBUILD_SRC),)
# OK, Make called in directory where kernel src resides
@@ -135,11 +128,10 @@ ifneq ($(words $(subst :, ,$(CURDIR))), 1)
endif
ifneq ($(KBUILD_OUTPUT),)
-# Invoke a second make in the output directory, passing relevant variables
# check that the output directory actually exists
saved-output := $(KBUILD_OUTPUT)
-KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
- && /bin/pwd)
+$(shell [ -d $(KBUILD_OUTPUT) ] || mkdir -p $(KBUILD_OUTPUT))
+KBUILD_OUTPUT := $(realpath $(KBUILD_OUTPUT))
$(if $(KBUILD_OUTPUT),, \
$(error failed to create output directory "$(saved-output)"))
@@ -148,6 +140,7 @@ PHONY += $(MAKECMDGOALS) sub-make
$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
@:
+# Invoke a second make in the output directory, passing relevant variables
sub-make:
$(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
-f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
@@ -301,10 +294,17 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
else if [ -x /bin/bash ]; then echo /bin/bash; \
else echo sh; fi ; fi)
+HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS)
+HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS)
+HOST_LFS_LIBS := $(shell getconf LFS_LIBS)
+
HOSTCC = gcc
HOSTCXX = g++
-HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu89
-HOSTCXXFLAGS = -O2
+HOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 \
+ -fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS)
+HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS)
+HOSTLDFLAGS := $(HOST_LFS_LDFLAGS)
+HOST_LOADLIBES := $(HOST_LFS_LIBS)
ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1)
HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \
@@ -388,17 +388,15 @@ USERINCLUDE := \
# Needed to be compatible with the O= option
LINUXINCLUDE := \
-I$(srctree)/arch/$(hdr-arch)/include \
- -I$(objtree)/arch/$(hdr-arch)/include/generated/uapi \
-I$(objtree)/arch/$(hdr-arch)/include/generated \
$(if $(KBUILD_SRC), -I$(srctree)/include) \
- -I$(objtree)/include
-
-LINUXINCLUDE += $(filter-out $(LINUXINCLUDE),$(USERINCLUDE))
+ -I$(objtree)/include \
+ $(USERINCLUDE)
KBUILD_CPPFLAGS := -D__KERNEL__
KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
- -fno-strict-aliasing -fno-common \
+ -fno-strict-aliasing -fno-common -fshort-wchar \
-Werror-implicit-function-declaration \
-Wno-format-security \
-std=gnu89 $(call cc-option,-fno-PIE)
@@ -417,7 +415,7 @@ KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(S
export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
-export CPP AR NM STRIP OBJCOPY OBJDUMP
+export CPP AR NM STRIP OBJCOPY OBJDUMP HOSTLDFLAGS HOST_LOADLIBES
export MAKE AWK GENKSYMS INSTALLKERNEL PERL PYTHON UTS_MACHINE
export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
@@ -444,7 +442,7 @@ export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
# ===========================================================================
# Rules shared between *config targets and build targets
-# Basic helpers built in scripts/
+# Basic helpers built in scripts/basic/
PHONY += scripts_basic
scripts_basic:
$(Q)$(MAKE) $(build)=scripts/basic
@@ -465,10 +463,11 @@ ifneq ($(KBUILD_SRC),)
endif
# Support for using generic headers in asm-generic
-PHONY += asm-generic
-asm-generic:
+PHONY += asm-generic uapi-asm-generic
+asm-generic: uapi-asm-generic
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
src=asm obj=arch/$(SRCARCH)/include/generated/asm
+uapi-asm-generic:
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm
@@ -506,7 +505,7 @@ ifeq ($(KBUILD_EXTMOD),)
endif
endif
endif
-# install and module_install need also be processed one by one
+# install and modules_install need also be processed one by one
ifneq ($(filter install,$(MAKECMDGOALS)),)
ifneq ($(filter modules_install,$(MAKECMDGOALS)),)
mixed-targets := 1
@@ -631,6 +630,9 @@ include arch/$(SRCARCH)/Makefile
KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,)
KBUILD_CFLAGS += $(call cc-disable-warning,frame-address,)
+KBUILD_CFLAGS += $(call cc-disable-warning, format-truncation)
+KBUILD_CFLAGS += $(call cc-disable-warning, format-overflow)
+KBUILD_CFLAGS += $(call cc-disable-warning, int-in-bool-context)
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
KBUILD_CFLAGS += $(call cc-option,-Oz,-Os)
@@ -707,6 +709,7 @@ KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable)
KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
+KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
# Quiet clang warning: comparison of unsigned expression < 0 is always false
KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
@@ -930,7 +933,11 @@ ifdef CONFIG_STACK_VALIDATION
ifeq ($(has_libelf),1)
objtool_target := tools/objtool FORCE
else
- $(warning "Cannot use CONFIG_STACK_VALIDATION, please install libelf-dev, libelf-devel or elfutils-libelf-devel")
+ ifdef CONFIG_ORC_UNWINDER
+ $(error "Cannot generate ORC metadata for CONFIG_ORC_UNWINDER=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel")
+ else
+ $(warning "Cannot use CONFIG_STACK_VALIDATION=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel")
+ endif
SKIP_STACK_VALIDATION := 1
export SKIP_STACK_VALIDATION
endif
@@ -952,19 +959,19 @@ core-y := $(patsubst %/, %/built-in.o, $(core-y))
drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y))
net-y := $(patsubst %/, %/built-in.o, $(net-y))
libs-y1 := $(patsubst %/, %/lib.a, $(libs-y))
-libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y))
-libs-y := $(libs-y1) $(libs-y2)
+libs-y2 := $(filter-out %.a, $(patsubst %/, %/built-in.o, $(libs-y)))
virt-y := $(patsubst %/, %/built-in.o, $(virt-y))
# Externally visible symbols (used by link-vmlinux.sh)
export KBUILD_VMLINUX_INIT := $(head-y) $(init-y)
-export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y) $(virt-y)
+export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y2) $(drivers-y) $(net-y) $(virt-y)
+export KBUILD_VMLINUX_LIBS := $(libs-y1)
export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds
export LDFLAGS_vmlinux
-# used by scripts/pacmage/Makefile
+# used by scripts/package/Makefile
export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools)
-vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN)
+vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN) $(KBUILD_VMLINUX_LIBS)
# Include targets which we want to execute sequentially if the rest of the
# kernel build went well. If CONFIG_TRIM_UNUSED_KSYMS is set, this might be
@@ -975,7 +982,7 @@ ifdef CONFIG_HEADERS_CHECK
$(Q)$(MAKE) -f $(srctree)/Makefile headers_check
endif
ifdef CONFIG_GDB_SCRIPTS
- $(Q)ln -fsn `cd $(srctree) && /bin/pwd`/scripts/gdb/vmlinux-gdb.py
+ $(Q)ln -fsn $(abspath $(srctree)/scripts/gdb/vmlinux-gdb.py)
endif
ifdef CONFIG_TRIM_UNUSED_KSYMS
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/adjust_autoksyms.sh \
@@ -989,8 +996,8 @@ include/generated/autoksyms.h: FORCE
ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink)
# Final link of vmlinux with optional arch pass after final link
- cmd_link-vmlinux = \
- $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) ; \
+cmd_link-vmlinux = \
+ $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) ; \
$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
vmlinux: scripts/link-vmlinux.sh vmlinux_prereq $(vmlinux-deps) FORCE
@@ -1126,22 +1133,12 @@ headerdep:
$(srctree)/scripts/headerdep.pl -I$(srctree)/include
# ---------------------------------------------------------------------------
-# Firmware install
-INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware
-export INSTALL_FW_PATH
-
-PHONY += firmware_install
-firmware_install:
- @mkdir -p $(objtree)/firmware
- $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install
-
-# ---------------------------------------------------------------------------
# Kernel headers
#Default location for installed headers
export INSTALL_HDR_PATH = $(objtree)/usr
-# If we do an all arch process set dst to asm-$(hdr-arch)
+# If we do an all arch process set dst to include/arch-$(hdr-arch)
hdr-dst = $(if $(KBUILD_HEADERS), dst=include/arch-$(hdr-arch), dst=include)
PHONY += archheaders
@@ -1151,7 +1148,7 @@ PHONY += archscripts
archscripts:
PHONY += __headers
-__headers: $(version_h) scripts_basic asm-generic archheaders archscripts
+__headers: $(version_h) scripts_basic uapi-asm-generic archheaders archscripts
$(Q)$(MAKE) $(build)=scripts build_unifdef
PHONY += headers_install_all
@@ -1162,7 +1159,7 @@ PHONY += headers_install
headers_install: __headers
$(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \
$(error Headers not exportable for the $(SRCARCH) architecture))
- $(Q)$(MAKE) $(hdr-inst)=include/uapi
+ $(Q)$(MAKE) $(hdr-inst)=include/uapi dst=include
$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi $(hdr-dst)
PHONY += headers_check_all
@@ -1171,7 +1168,7 @@ headers_check_all: headers_install_all
PHONY += headers_check
headers_check: headers_install
- $(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1
+ $(Q)$(MAKE) $(hdr-inst)=include/uapi dst=include HDRCHECK=1
$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi $(hdr-dst) HDRCHECK=1
# ---------------------------------------------------------------------------
@@ -1179,10 +1176,11 @@ headers_check: headers_install
PHONY += kselftest
kselftest:
- $(Q)$(MAKE) -C tools/testing/selftests run_tests
+ $(Q)$(MAKE) -C $(srctree)/tools/testing/selftests run_tests
+PHONY += kselftest-clean
kselftest-clean:
- $(Q)$(MAKE) -C tools/testing/selftests clean
+ $(Q)$(MAKE) -C $(srctree)/tools/testing/selftests clean
PHONY += kselftest-merge
kselftest-merge:
@@ -1212,7 +1210,6 @@ modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin
$(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
@$(kecho) ' Building modules, stage 2.';
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
- $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild
modules.builtin: $(vmlinux-dirs:%=%/modules.builtin)
$(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin
@@ -1234,7 +1231,7 @@ _modinst_:
@rm -rf $(MODLIB)/kernel
@rm -f $(MODLIB)/source
@mkdir -p $(MODLIB)/kernel
- @ln -s `cd $(srctree) && /bin/pwd` $(MODLIB)/source
+ @ln -s $(abspath $(srctree)) $(MODLIB)/source
@if [ ! $(objtree) -ef $(MODLIB)/build ]; then \
rm -f $(MODLIB)/build ; \
ln -s $(CURDIR) $(MODLIB)/build ; \
@@ -1248,7 +1245,6 @@ _modinst_:
# boot script depmod is the master version.
PHONY += _modinst_post
_modinst_post: _modinst_
- $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst
$(call cmd,depmod)
ifeq ($(CONFIG_MODULE_SIG), y)
@@ -1312,7 +1308,7 @@ clean: archclean vmlinuxclean
#
mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
-mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts)
+mrproper-dirs := $(addprefix _mrproper_,scripts)
PHONY += $(mrproper-dirs) mrproper archmrproper
$(mrproper-dirs):
@@ -1371,8 +1367,6 @@ help:
@echo '* vmlinux - Build the bare kernel'
@echo '* modules - Build all modules'
@echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'
- @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH'
- @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)'
@echo ' dir/ - Build all files in dir and below'
@echo ' dir/file.[ois] - Build specified target only'
@echo ' dir/file.ll - Build the LLVM assembly file'
@@ -1416,9 +1410,7 @@ help:
@$(MAKE) $(build)=$(package-dir) help
@echo ''
@echo 'Documentation targets:'
- @$(MAKE) -f $(srctree)/Documentation/Makefile.sphinx dochelp
- @echo ''
- @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp
+ @$(MAKE) -f $(srctree)/Documentation/Makefile dochelp
@echo ''
@echo 'Architecture specific targets ($(SRCARCH)):'
@$(if $(archhelp),$(archhelp),\
@@ -1466,12 +1458,10 @@ $(help-board-dirs): help-%:
# Documentation targets
# ---------------------------------------------------------------------------
-DOC_TARGETS := xmldocs sgmldocs psdocs latexdocs pdfdocs htmldocs mandocs installmandocs epubdocs cleandocs linkcheckdocs
+DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs linkcheckdocs
PHONY += $(DOC_TARGETS)
$(DOC_TARGETS): scripts_basic FORCE
- $(Q)$(MAKE) $(build)=scripts build_docproc build_check-lc_ctype
- $(Q)$(MAKE) $(build)=Documentation -f $(srctree)/Documentation/Makefile.sphinx $@
- $(Q)$(MAKE) $(build)=Documentation/DocBook $@
+ $(Q)$(MAKE) $(build)=Documentation $@
else # KBUILD_EXTMOD
@@ -1630,11 +1620,11 @@ image_name:
# Clear a bunch of variables before executing the submake
tools/: FORCE
$(Q)mkdir -p $(objtree)/tools
- $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(shell cd $(objtree) && /bin/pwd) subdir=tools -C $(src)/tools/
+ $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(src)/tools/
tools/%: FORCE
$(Q)mkdir -p $(objtree)/tools
- $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(shell cd $(objtree) && /bin/pwd) subdir=tools -C $(src)/tools/ $*
+ $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(src)/tools/ $*
# Single targets
# ---------------------------------------------------------------------------
diff --git a/arch/Kconfig b/arch/Kconfig
index 6c00e5b00f8b..d789a89cb32c 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -198,9 +198,6 @@ config HAVE_KPROBES_ON_FTRACE
config HAVE_NMI
bool
-config HAVE_NMI_WATCHDOG
- depends on HAVE_NMI
- bool
#
# An arch should select this if it provides all these things:
#
@@ -226,6 +223,12 @@ config GENERIC_SMP_IDLE_THREAD
config GENERIC_IDLE_POLL_SETUP
bool
+config ARCH_HAS_FORTIFY_SOURCE
+ bool
+ help
+ An architecture should select this when it can successfully
+ build and run with CONFIG_FORTIFY_SOURCE.
+
# Select if arch has all set_memory_ro/rw/x/nx() functions in asm/cacheflush.h
config ARCH_HAS_SET_MEMORY
bool
@@ -288,6 +291,28 @@ config HAVE_PERF_EVENTS_NMI
subsystem. Also has support for calculating CPU cycle events
to determine how many clock cycles in a given period.
+config HAVE_HARDLOCKUP_DETECTOR_PERF
+ bool
+ depends on HAVE_PERF_EVENTS_NMI
+ help
+ The arch chooses to use the generic perf-NMI-based hardlockup
+ detector. Must define HAVE_PERF_EVENTS_NMI.
+
+config HAVE_NMI_WATCHDOG
+ depends on HAVE_NMI
+ bool
+ help
+ The arch provides a low level NMI watchdog. It provides
+ asm/nmi.h, and defines its own arch_touch_nmi_watchdog().
+
+config HAVE_HARDLOCKUP_DETECTOR_ARCH
+ bool
+ select HAVE_NMI_WATCHDOG
+ help
+ The arch chooses to provide its own hardlockup detector, which is
+ a superset of the HAVE_NMI_WATCHDOG. It also conforms to config
+ interfaces and parameters provided by hardlockup detector subsystem.
+
config HAVE_PERF_REGS
bool
help
@@ -425,7 +450,7 @@ config GCC_PLUGIN_STRUCTLEAK
bool "Force initialization of variables containing userspace addresses"
depends on GCC_PLUGINS
help
- This plugin zero-initializes any structures that containing a
+ This plugin zero-initializes any structures containing a
__user attribute. This can prevent some classes of information
exposures.
@@ -433,6 +458,13 @@ config GCC_PLUGIN_STRUCTLEAK
* https://grsecurity.net/
* https://pax.grsecurity.net/
+config GCC_PLUGIN_STRUCTLEAK_BYREF_ALL
+ bool "Force initialize all struct type variables passed by reference"
+ depends on GCC_PLUGIN_STRUCTLEAK
+ help
+ Zero initialize any struct type local variable that may be passed by
+ reference without having been initialized.
+
config GCC_PLUGIN_STRUCTLEAK_VERBOSE
bool "Report forcefully initialized variables"
depends on GCC_PLUGIN_STRUCTLEAK
@@ -443,6 +475,47 @@ config GCC_PLUGIN_STRUCTLEAK_VERBOSE
initialized. Since not all existing initializers are detected
by the plugin, this can produce false positive warnings.
+config GCC_PLUGIN_RANDSTRUCT
+ bool "Randomize layout of sensitive kernel structures"
+ depends on GCC_PLUGINS
+ select MODVERSIONS if MODULES
+ help
+ If you say Y here, the layouts of structures that are entirely
+ function pointers (and have not been manually annotated with
+ __no_randomize_layout), or structures that have been explicitly
+ marked with __randomize_layout, will be randomized at compile-time.
+ This can introduce the requirement of an additional information
+ exposure vulnerability for exploits targeting these structure
+ types.
+
+ Enabling this feature will introduce some performance impact,
+ slightly increase memory usage, and prevent the use of forensic
+ tools like Volatility against the system (unless the kernel
+ source tree isn't cleaned after kernel installation).
+
+ The seed used for compilation is located at
+ scripts/gcc-plgins/randomize_layout_seed.h. It remains after
+ a make clean to allow for external modules to be compiled with
+ the existing seed and will be removed by a make mrproper or
+ make distclean.
+
+ Note that the implementation requires gcc 4.7 or newer.
+
+ This plugin was ported from grsecurity/PaX. More information at:
+ * https://grsecurity.net/
+ * https://pax.grsecurity.net/
+
+config GCC_PLUGIN_RANDSTRUCT_PERFORMANCE
+ bool "Use cacheline-aware structure randomization"
+ depends on GCC_PLUGIN_RANDSTRUCT
+ depends on !COMPILE_TEST
+ help
+ If you say Y here, the RANDSTRUCT randomization will make a
+ best effort at restricting randomization to cacheline-sized
+ groups of elements. It will further not randomize bitfields
+ in structures. This reduces the performance hit of RANDSTRUCT
+ at the cost of weakened randomization.
+
config HAVE_CC_STACKPROTECTOR
bool
help
@@ -511,7 +584,7 @@ config CC_STACKPROTECTOR_STRONG
endchoice
config THIN_ARCHIVES
- bool
+ def_bool y
help
Select this if the architecture wants to use thin archives
instead of ld -r to create the built-in.o files.
@@ -864,7 +937,25 @@ config STRICT_MODULE_RWX
and non-text memory will be made non-executable. This provides
protection against certain security exploits (e.g. writing to text)
-config ARCH_WANT_RELAX_ORDER
+config ARCH_HAS_REFCOUNT
bool
+ help
+ An architecture selects this when it has implemented refcount_t
+ using open coded assembly primitives that provide an optimized
+ refcount_t implementation, possibly at the expense of some full
+ refcount state checks of CONFIG_REFCOUNT_FULL=y.
+
+ The refcount overflow check behavior, however, must be retained.
+ Catching overflows is the primary security concern for protecting
+ against bugs in reference counts.
+
+config REFCOUNT_FULL
+ bool "Perform full reference count validation at the expense of speed"
+ help
+ Enabling this switches the refcounting infrastructure from a fast
+ unchecked atomic_t implementation to a fully state checked
+ implementation, which can be (slightly) slower but provides protections
+ against various use-after-free conditions that can be used in
+ security flaw exploits.
source "kernel/gcov/Kconfig"
diff --git a/arch/alpha/defconfig b/arch/alpha/defconfig
index 539e8b5a6cbd..f4ec420d7f2d 100644
--- a/arch/alpha/defconfig
+++ b/arch/alpha/defconfig
@@ -19,7 +19,6 @@ CONFIG_INET_AH=m
CONFIG_INET_ESP=m
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
-CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_FILTER=m
CONFIG_VLAN_8021Q=m
@@ -57,7 +56,6 @@ CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_RTC=y
CONFIG_EXT2_FS=y
CONFIG_REISERFS_FS=m
-CONFIG_AUTOFS_FS=m
CONFIG_ISO9660_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
diff --git a/arch/alpha/include/asm/Kbuild b/arch/alpha/include/asm/Kbuild
index d103db5af5ff..5b974ab8425c 100644
--- a/arch/alpha/include/asm/Kbuild
+++ b/arch/alpha/include/asm/Kbuild
@@ -3,6 +3,7 @@
generic-y += clkdev.h
generic-y += exec.h
generic-y += export.h
+generic-y += fb.h
generic-y += irq_work.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
diff --git a/arch/alpha/include/asm/asm-prototypes.h b/arch/alpha/include/asm/asm-prototypes.h
new file mode 100644
index 000000000000..d12c68ea340b
--- /dev/null
+++ b/arch/alpha/include/asm/asm-prototypes.h
@@ -0,0 +1,18 @@
+#include <linux/spinlock.h>
+
+#include <asm/checksum.h>
+#include <asm/console.h>
+#include <asm/page.h>
+#include <asm/string.h>
+#include <asm/uaccess.h>
+
+#include <asm-generic/asm-prototypes.h>
+
+extern void __divl(void);
+extern void __reml(void);
+extern void __divq(void);
+extern void __remq(void);
+extern void __divlu(void);
+extern void __remlu(void);
+extern void __divqu(void);
+extern void __remqu(void);
diff --git a/arch/alpha/include/asm/core_marvel.h b/arch/alpha/include/asm/core_marvel.h
index dad300fa14ce..8dcf9dbda618 100644
--- a/arch/alpha/include/asm/core_marvel.h
+++ b/arch/alpha/include/asm/core_marvel.h
@@ -312,7 +312,7 @@ struct io7 {
io7_port7_csrs *csrs;
struct io7_port ports[IO7_NUM_PORTS];
- spinlock_t irq_lock;
+ raw_spinlock_t irq_lock;
};
#ifndef __EXTERN_INLINE
diff --git a/arch/alpha/include/asm/fb.h b/arch/alpha/include/asm/fb.h
deleted file mode 100644
index fa9bbb96b2b3..000000000000
--- a/arch/alpha/include/asm/fb.h
+++ /dev/null
@@ -1,13 +0,0 @@
-#ifndef _ASM_FB_H_
-#define _ASM_FB_H_
-#include <linux/device.h>
-
-/* Caching is off in the I/O space quadrant by design. */
-#define fb_pgprotect(...) do {} while (0)
-
-static inline int fb_is_primary_device(struct fb_info *info)
-{
- return 0;
-}
-
-#endif /* _ASM_FB_H_ */
diff --git a/arch/alpha/include/asm/futex.h b/arch/alpha/include/asm/futex.h
index fb01dfb760c2..05a70edd57b6 100644
--- a/arch/alpha/include/asm/futex.h
+++ b/arch/alpha/include/asm/futex.h
@@ -25,18 +25,10 @@
: "r" (uaddr), "r"(oparg) \
: "memory")
-static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+ u32 __user *uaddr)
{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
int oldval = 0, ret;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
- return -EFAULT;
pagefault_disable();
@@ -62,17 +54,9 @@ static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
pagefault_enable();
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
- case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
- case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
- case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
- case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
- case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
- default: ret = -ENOSYS;
- }
- }
+ if (!ret)
+ *oval = oldval;
+
return ret;
}
diff --git a/arch/alpha/include/asm/io.h b/arch/alpha/include/asm/io.h
index ff4049155c84..4d61d2a50c52 100644
--- a/arch/alpha/include/asm/io.h
+++ b/arch/alpha/include/asm/io.h
@@ -299,6 +299,7 @@ static inline void __iomem * ioremap_nocache(unsigned long offset,
return ioremap(offset, size);
}
+#define ioremap_wc ioremap_nocache
#define ioremap_uc ioremap_nocache
static inline void iounmap(volatile void __iomem *addr)
diff --git a/arch/alpha/include/asm/mmu_context.h b/arch/alpha/include/asm/mmu_context.h
index 384bd47b5187..45c020a0fe76 100644
--- a/arch/alpha/include/asm/mmu_context.h
+++ b/arch/alpha/include/asm/mmu_context.h
@@ -8,6 +8,7 @@
*/
#include <linux/mm_types.h>
+#include <linux/sched.h>
#include <asm/machvec.h>
#include <asm/compiler.h>
diff --git a/arch/alpha/include/asm/spinlock.h b/arch/alpha/include/asm/spinlock.h
index a40b9fc0c6c3..718ac0b64adf 100644
--- a/arch/alpha/include/asm/spinlock.h
+++ b/arch/alpha/include/asm/spinlock.h
@@ -16,11 +16,6 @@
#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
#define arch_spin_is_locked(x) ((x)->lock != 0)
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- smp_cond_load_acquire(&lock->lock, !VAL);
-}
-
static inline int arch_spin_value_unlocked(arch_spinlock_t lock)
{
return lock.lock == 0;
diff --git a/arch/alpha/include/asm/string.h b/arch/alpha/include/asm/string.h
index c2911f591704..9eb9933d845f 100644
--- a/arch/alpha/include/asm/string.h
+++ b/arch/alpha/include/asm/string.h
@@ -65,13 +65,14 @@ extern void * memchr(const void *, int, size_t);
aligned values. The DEST and COUNT parameters must be even for
correct operation. */
-#define __HAVE_ARCH_MEMSETW
-extern void * __memsetw(void *dest, unsigned short, size_t count);
-
-#define memsetw(s, c, n) \
-(__builtin_constant_p(c) \
- ? __constant_c_memset((s),0x0001000100010001UL*(unsigned short)(c),(n)) \
- : __memsetw((s),(c),(n)))
+#define __HAVE_ARCH_MEMSET16
+extern void * __memset16(void *dest, unsigned short, size_t count);
+static inline void *memset16(uint16_t *p, uint16_t v, size_t n)
+{
+ if (__builtin_constant_p(v))
+ return __constant_c_memset(p, 0x0001000100010001UL * v, n * 2);
+ return __memset16(p, v, n * 2);
+}
#endif /* __KERNEL__ */
diff --git a/arch/alpha/include/asm/types.h b/arch/alpha/include/asm/types.h
index 4cb4b6d3452c..0bc66e1d3a7e 100644
--- a/arch/alpha/include/asm/types.h
+++ b/arch/alpha/include/asm/types.h
@@ -1,6 +1,6 @@
#ifndef _ALPHA_TYPES_H
#define _ALPHA_TYPES_H
-#include <asm-generic/int-ll64.h>
+#include <uapi/asm/types.h>
#endif /* _ALPHA_TYPES_H */
diff --git a/arch/alpha/include/asm/uaccess.h b/arch/alpha/include/asm/uaccess.h
index 7b82dc9a8556..133a4884ed44 100644
--- a/arch/alpha/include/asm/uaccess.h
+++ b/arch/alpha/include/asm/uaccess.h
@@ -326,7 +326,6 @@ clear_user(void __user *to, long len)
(uaccess_kernel() ? ~0UL : TASK_SIZE)
extern long strncpy_from_user(char *dest, const char __user *src, long count);
-extern __must_check long strlen_user(const char __user *str);
extern __must_check long strnlen_user(const char __user *str, long n);
#include <asm/extable.h>
diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
index a56e608db2f9..db7fc0f511e2 100644
--- a/arch/alpha/include/asm/unistd.h
+++ b/arch/alpha/include/asm/unistd.h
@@ -3,14 +3,13 @@
#include <uapi/asm/unistd.h>
-#define NR_SYSCALLS 514
+#define NR_SYSCALLS 523
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_STAT64
#define __ARCH_WANT_SYS_GETHOSTNAME
#define __ARCH_WANT_SYS_FADVISE64
#define __ARCH_WANT_SYS_GETPGRP
-#define __ARCH_WANT_SYS_OLD_GETRLIMIT
#define __ARCH_WANT_SYS_OLDUMOUNT
#define __ARCH_WANT_SYS_SIGPENDING
#define __ARCH_WANT_SYS_FORK
diff --git a/arch/alpha/include/asm/vga.h b/arch/alpha/include/asm/vga.h
index c00106bac521..3c1c2b6128e7 100644
--- a/arch/alpha/include/asm/vga.h
+++ b/arch/alpha/include/asm/vga.h
@@ -34,7 +34,7 @@ static inline void scr_memsetw(u16 *s, u16 c, unsigned int count)
if (__is_ioaddr(s))
memsetw_io((u16 __iomem *) s, c, count);
else
- memsetw(s, c, count);
+ memset16(s, c, count / 2);
}
/* Do not trust that the usage will be correct; analyze the arguments. */
diff --git a/arch/alpha/include/uapi/asm/ioctls.h b/arch/alpha/include/uapi/asm/ioctls.h
index f30c94ae1bdb..1cd7dc7d4870 100644
--- a/arch/alpha/include/uapi/asm/ioctls.h
+++ b/arch/alpha/include/uapi/asm/ioctls.h
@@ -100,6 +100,7 @@
#define TIOCGPKT _IOR('T', 0x38, int) /* Get packet mode state */
#define TIOCGPTLCK _IOR('T', 0x39, int) /* Get Pty lock state */
#define TIOCGEXCL _IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER _IO('T', 0x41) /* Safely open the slave */
#define TIOCSERCONFIG 0x5453
#define TIOCSERGWILD 0x5454
diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 02760f6e6ca4..3b26cc62dadb 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -64,20 +64,12 @@
overrides the coredump filter bits */
#define MADV_DODUMP 17 /* Clear the MADV_NODUMP flag */
+#define MADV_WIPEONFORK 18 /* Zero memory on fork, child only */
+#define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK */
+
/* compatibility flags */
#define MAP_FILE 0
-/*
- * When MAP_HUGETLB is set bits [26:31] encode the log2 of the huge page size.
- * This gives us 6 bits, which is enough until someone invents 128 bit address
- * spaces.
- *
- * Assume these are all power of twos.
- * When 0 use the default page size.
- */
-#define MAP_HUGE_SHIFT 26
-#define MAP_HUGE_MASK 0x3f
-
#define PKEY_DISABLE_ACCESS 0x1
#define PKEY_DISABLE_WRITE 0x2
#define PKEY_ACCESS_MASK (PKEY_DISABLE_ACCESS |\
diff --git a/arch/alpha/include/uapi/asm/siginfo.h b/arch/alpha/include/uapi/asm/siginfo.h
index 9822362a8424..70494d1d8f29 100644
--- a/arch/alpha/include/uapi/asm/siginfo.h
+++ b/arch/alpha/include/uapi/asm/siginfo.h
@@ -6,4 +6,18 @@
#include <asm-generic/siginfo.h>
+/*
+ * SIGFPE si_codes
+ */
+#ifdef __KERNEL__
+#define FPE_FIXME 0 /* Broken dup of SI_USER */
+#endif /* __KERNEL__ */
+
+/*
+ * SIGTRAP si_codes
+ */
+#ifdef __KERNEL__
+#define TRAP_FIXME 0 /* Broken dup of SI_USER */
+#endif /* __KERNEL__ */
+
#endif
diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h
index 148d7a32754e..c6133a045352 100644
--- a/arch/alpha/include/uapi/asm/socket.h
+++ b/arch/alpha/include/uapi/asm/socket.h
@@ -105,4 +105,10 @@
#define SO_COOKIE 57
+#define SCM_TIMESTAMPING_PKTINFO 58
+
+#define SO_PEERGROUPS 59
+
+#define SO_ZEROCOPY 60
+
#endif /* _UAPI_ASM_SOCKET_H */
diff --git a/arch/alpha/include/uapi/asm/types.h b/arch/alpha/include/uapi/asm/types.h
index 9fd3cd459777..8d1024d7be05 100644
--- a/arch/alpha/include/uapi/asm/types.h
+++ b/arch/alpha/include/uapi/asm/types.h
@@ -9,8 +9,18 @@
* need to be careful to avoid a name clashes.
*/
-#ifndef __KERNEL__
+/*
+ * This is here because we used to use l64 for alpha
+ * and we don't want to impact user mode with our change to ll64
+ * in the kernel.
+ *
+ * However, some user programs are fine with this. They can
+ * flag __SANE_USERSPACE_TYPES__ to get int-ll64.h here.
+ */
+#if !defined(__SANE_USERSPACE_TYPES__) && !defined(__KERNEL__)
#include <asm-generic/int-l64.h>
+#else
+#include <asm-generic/int-ll64.h>
#endif
#endif /* _UAPI_ALPHA_TYPES_H */
diff --git a/arch/alpha/include/uapi/asm/unistd.h b/arch/alpha/include/uapi/asm/unistd.h
index aa33bf5aacb6..53de540e39a7 100644
--- a/arch/alpha/include/uapi/asm/unistd.h
+++ b/arch/alpha/include/uapi/asm/unistd.h
@@ -366,11 +366,6 @@
#define __NR_epoll_create 407
#define __NR_epoll_ctl 408
#define __NR_epoll_wait 409
-/* Feb 2007: These three sys_epoll defines shouldn't be here but culling
- * them would break userspace apps ... we'll kill them off in 2010 :) */
-#define __NR_sys_epoll_create __NR_epoll_create
-#define __NR_sys_epoll_ctl __NR_epoll_ctl
-#define __NR_sys_epoll_wait __NR_epoll_wait
#define __NR_remap_file_pages 410
#define __NR_set_tid_address 411
#define __NR_restart_syscall 412
@@ -475,5 +470,19 @@
#define __NR_getrandom 511
#define __NR_memfd_create 512
#define __NR_execveat 513
+#define __NR_seccomp 514
+#define __NR_bpf 515
+#define __NR_userfaultfd 516
+#define __NR_membarrier 517
+#define __NR_mlock2 518
+#define __NR_copy_file_range 519
+#define __NR_preadv2 520
+#define __NR_pwritev2 521
+#define __NR_statx 522
+
+/* Alpha doesn't have protection keys. */
+#define __IGNORE_pkey_mprotect
+#define __IGNORE_pkey_alloc
+#define __IGNORE_pkey_free
#endif /* _UAPI_ALPHA_UNISTD_H */
diff --git a/arch/alpha/kernel/core_marvel.c b/arch/alpha/kernel/core_marvel.c
index d5f0580746a5..b10c316475dd 100644
--- a/arch/alpha/kernel/core_marvel.c
+++ b/arch/alpha/kernel/core_marvel.c
@@ -118,7 +118,7 @@ alloc_io7(unsigned int pe)
io7 = alloc_bootmem(sizeof(*io7));
io7->pe = pe;
- spin_lock_init(&io7->irq_lock);
+ raw_spin_lock_init(&io7->irq_lock);
for (h = 0; h < 4; h++) {
io7->ports[h].io7 = io7;
@@ -351,7 +351,7 @@ marvel_init_io7(struct io7 *io7)
}
}
-void
+void __init
marvel_io7_present(gct6_node *node)
{
int pe;
@@ -369,6 +369,7 @@ marvel_io7_present(gct6_node *node)
static void __init
marvel_find_console_vga_hose(void)
{
+#ifdef CONFIG_VGA_HOSE
u64 *pu64 = (u64 *)((u64)hwrpb + hwrpb->ctbt_offset);
if (pu64[7] == 3) { /* TERM_TYPE == graphics */
@@ -402,9 +403,10 @@ marvel_find_console_vga_hose(void)
pci_vga_hose = hose;
}
}
+#endif
}
-gct6_search_struct gct_wanted_node_list[] = {
+gct6_search_struct gct_wanted_node_list[] __initdata = {
{ GCT_TYPE_HOSE, GCT_SUBTYPE_IO_PORT_MODULE, marvel_io7_present },
{ 0, 0, NULL }
};
diff --git a/arch/alpha/kernel/core_titan.c b/arch/alpha/kernel/core_titan.c
index 219bf271c0ba..b532d925443d 100644
--- a/arch/alpha/kernel/core_titan.c
+++ b/arch/alpha/kernel/core_titan.c
@@ -461,6 +461,7 @@ titan_ioremap(unsigned long addr, unsigned long size)
unsigned long *ptes;
unsigned long pfn;
+#ifdef CONFIG_VGA_HOSE
/*
* Adjust the address and hose, if necessary.
*/
@@ -468,6 +469,7 @@ titan_ioremap(unsigned long addr, unsigned long size)
h = pci_vga_hose->index;
addr += pci_vga_hose->mem_space->start;
}
+#endif
/*
* Find the hose.
diff --git a/arch/alpha/kernel/module.c b/arch/alpha/kernel/module.c
index 936bc8f89a67..47632fa8c24e 100644
--- a/arch/alpha/kernel/module.c
+++ b/arch/alpha/kernel/module.c
@@ -181,6 +181,9 @@ apply_relocate_add(Elf64_Shdr *sechdrs, const char *strtab,
switch (r_type) {
case R_ALPHA_NONE:
break;
+ case R_ALPHA_REFLONG:
+ *(u32 *)location = value;
+ break;
case R_ALPHA_REFQUAD:
/* BUG() can produce misaligned relocations. */
((u32 *)location)[0] = value;
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index ce93124a850b..df0d0a5e9353 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -564,25 +564,20 @@ SYSCALL_DEFINE0(getdtablesize)
*/
SYSCALL_DEFINE2(osf_getdomainname, char __user *, name, int, namelen)
{
- unsigned len;
- int i;
+ int len, err = 0;
+ char *kname;
- if (!access_ok(VERIFY_WRITE, name, namelen))
- return -EFAULT;
-
- len = namelen;
- if (len > 32)
- len = 32;
+ if (namelen > 32)
+ namelen = 32;
down_read(&uts_sem);
- for (i = 0; i < len; ++i) {
- __put_user(utsname()->domainname[i], name + i);
- if (utsname()->domainname[i] == '\0')
- break;
- }
+ kname = utsname()->domainname;
+ len = strnlen(kname, namelen);
+ if (copy_to_user(name, kname, min(len + 1, namelen)))
+ err = -EFAULT;
up_read(&uts_sem);
- return 0;
+ return err;
}
/*
@@ -718,9 +713,8 @@ SYSCALL_DEFINE2(osf_sigstack, struct sigstack __user *, uss,
if (uoss) {
error = -EFAULT;
- if (! access_ok(VERIFY_WRITE, uoss, sizeof(*uoss))
- || __put_user(oss_sp, &uoss->ss_sp)
- || __put_user(oss_os, &uoss->ss_onstack))
+ if (put_user(oss_sp, &uoss->ss_sp) ||
+ put_user(oss_os, &uoss->ss_onstack))
goto out;
}
@@ -957,37 +951,45 @@ struct itimerval32
static inline long
get_tv32(struct timeval *o, struct timeval32 __user *i)
{
- return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
- (__get_user(o->tv_sec, &i->tv_sec) |
- __get_user(o->tv_usec, &i->tv_usec)));
+ struct timeval32 tv;
+ if (copy_from_user(&tv, i, sizeof(struct timeval32)))
+ return -EFAULT;
+ o->tv_sec = tv.tv_sec;
+ o->tv_usec = tv.tv_usec;
+ return 0;
}
static inline long
put_tv32(struct timeval32 __user *o, struct timeval *i)
{
- return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
- (__put_user(i->tv_sec, &o->tv_sec) |
- __put_user(i->tv_usec, &o->tv_usec)));
+ return copy_to_user(o, &(struct timeval32){
+ .tv_sec = o->tv_sec,
+ .tv_usec = o->tv_usec},
+ sizeof(struct timeval32));
}
static inline long
get_it32(struct itimerval *o, struct itimerval32 __user *i)
{
- return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
- (__get_user(o->it_interval.tv_sec, &i->it_interval.tv_sec) |
- __get_user(o->it_interval.tv_usec, &i->it_interval.tv_usec) |
- __get_user(o->it_value.tv_sec, &i->it_value.tv_sec) |
- __get_user(o->it_value.tv_usec, &i->it_value.tv_usec)));
+ struct itimerval32 itv;
+ if (copy_from_user(&itv, i, sizeof(struct itimerval32)))
+ return -EFAULT;
+ o->it_interval.tv_sec = itv.it_interval.tv_sec;
+ o->it_interval.tv_usec = itv.it_interval.tv_usec;
+ o->it_value.tv_sec = itv.it_value.tv_sec;
+ o->it_value.tv_usec = itv.it_value.tv_usec;
+ return 0;
}
static inline long
put_it32(struct itimerval32 __user *o, struct itimerval *i)
{
- return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
- (__put_user(i->it_interval.tv_sec, &o->it_interval.tv_sec) |
- __put_user(i->it_interval.tv_usec, &o->it_interval.tv_usec) |
- __put_user(i->it_value.tv_sec, &o->it_value.tv_sec) |
- __put_user(i->it_value.tv_usec, &o->it_value.tv_usec)));
+ return copy_to_user(o, &(struct itimerval32){
+ .it_interval.tv_sec = o->it_interval.tv_sec,
+ .it_interval.tv_usec = o->it_interval.tv_usec,
+ .it_value.tv_sec = o->it_value.tv_sec,
+ .it_value.tv_usec = o->it_value.tv_usec},
+ sizeof(struct itimerval32));
}
static inline void
@@ -1106,20 +1108,17 @@ SYSCALL_DEFINE5(osf_select, int, n, fd_set __user *, inp, fd_set __user *, outp,
{
struct timespec end_time, *to = NULL;
if (tvp) {
- time_t sec, usec;
-
+ struct timeval tv;
to = &end_time;
- if (!access_ok(VERIFY_READ, tvp, sizeof(*tvp))
- || __get_user(sec, &tvp->tv_sec)
- || __get_user(usec, &tvp->tv_usec)) {
+ if (get_tv32(&tv, tvp))
return -EFAULT;
- }
- if (sec < 0 || usec < 0)
+ if (tv.tv_sec < 0 || tv.tv_usec < 0)
return -EINVAL;
- if (poll_select_set_timeout(to, sec, usec * NSEC_PER_USEC))
+ if (poll_select_set_timeout(to, tv.tv_sec,
+ tv.tv_usec * NSEC_PER_USEC))
return -EINVAL;
}
@@ -1183,48 +1182,23 @@ SYSCALL_DEFINE2(osf_getrusage, int, who, struct rusage32 __user *, ru)
SYSCALL_DEFINE4(osf_wait4, pid_t, pid, int __user *, ustatus, int, options,
struct rusage32 __user *, ur)
{
- struct rusage r;
- long ret, err;
unsigned int status = 0;
- mm_segment_t old_fs;
-
+ struct rusage r;
+ long err = kernel_wait4(pid, &status, options, &r);
+ if (err <= 0)
+ return err;
+ if (put_user(status, ustatus))
+ return -EFAULT;
if (!ur)
- return sys_wait4(pid, ustatus, options, NULL);
-
- old_fs = get_fs();
-
- set_fs (KERNEL_DS);
- ret = sys_wait4(pid, (unsigned int __user *) &status, options,
- (struct rusage __user *) &r);
- set_fs (old_fs);
-
- if (!access_ok(VERIFY_WRITE, ur, sizeof(*ur)))
+ return err;
+ if (put_tv32(&ur->ru_utime, &r.ru_utime))
return -EFAULT;
-
- err = put_user(status, ustatus);
- if (ret < 0)
- return err ? err : ret;
-
- err |= __put_user(r.ru_utime.tv_sec, &ur->ru_utime.tv_sec);
- err |= __put_user(r.ru_utime.tv_usec, &ur->ru_utime.tv_usec);
- err |= __put_user(r.ru_stime.tv_sec, &ur->ru_stime.tv_sec);
- err |= __put_user(r.ru_stime.tv_usec, &ur->ru_stime.tv_usec);
- err |= __put_user(r.ru_maxrss, &ur->ru_maxrss);
- err |= __put_user(r.ru_ixrss, &ur->ru_ixrss);
- err |= __put_user(r.ru_idrss, &ur->ru_idrss);
- err |= __put_user(r.ru_isrss, &ur->ru_isrss);
- err |= __put_user(r.ru_minflt, &ur->ru_minflt);
- err |= __put_user(r.ru_majflt, &ur->ru_majflt);
- err |= __put_user(r.ru_nswap, &ur->ru_nswap);
- err |= __put_user(r.ru_inblock, &ur->ru_inblock);
- err |= __put_user(r.ru_oublock, &ur->ru_oublock);
- err |= __put_user(r.ru_msgsnd, &ur->ru_msgsnd);
- err |= __put_user(r.ru_msgrcv, &ur->ru_msgrcv);
- err |= __put_user(r.ru_nsignals, &ur->ru_nsignals);
- err |= __put_user(r.ru_nvcsw, &ur->ru_nvcsw);
- err |= __put_user(r.ru_nivcsw, &ur->ru_nivcsw);
-
- return err ? err : ret;
+ if (put_tv32(&ur->ru_stime, &r.ru_stime))
+ return -EFAULT;
+ if (copy_to_user(&ur->ru_maxrss, &r.ru_maxrss,
+ sizeof(struct rusage32) - offsetof(struct rusage32, ru_maxrss)))
+ return -EFAULT;
+ return err;
}
/*
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index ffbdb3fb672f..676bab6e3123 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -42,11 +42,7 @@ alloc_pci_controller(void)
struct resource * __init
alloc_resource(void)
{
- struct resource *res;
-
- res = alloc_bootmem(sizeof(*res));
-
- return res;
+ return alloc_bootmem(sizeof(struct resource));
}
asmlinkage long
diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c
index 92c0d460815b..cbecd527c696 100644
--- a/arch/alpha/kernel/pci-sysfs.c
+++ b/arch/alpha/kernel/pci-sysfs.c
@@ -38,7 +38,7 @@ static int __pci_mmap_fits(struct pci_dev *pdev, int num,
unsigned long nr, start, size;
int shift = sparse ? 5 : 0;
- nr = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+ nr = vma_pages(vma);
start = vma->vm_pgoff;
size = ((pci_resource_len(pdev, num) - 1) >> (PAGE_SHIFT - shift)) + 1;
@@ -64,8 +64,7 @@ static int pci_mmap_resource(struct kobject *kobj,
struct bin_attribute *attr,
struct vm_area_struct *vma, int sparse)
{
- struct pci_dev *pdev = to_pci_dev(container_of(kobj,
- struct device, kobj));
+ struct pci_dev *pdev = to_pci_dev(kobj_to_dev(kobj));
struct resource *res = attr->private;
enum pci_mmap_state mmap_type;
struct pci_bus_region bar;
@@ -255,7 +254,7 @@ static int __legacy_mmap_fits(struct pci_controller *hose,
{
unsigned long nr, start, size;
- nr = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+ nr = vma_pages(vma);
start = vma->vm_pgoff;
size = ((res_size - 1) >> PAGE_SHIFT) + 1;
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index 5f387ee5b5c5..564114eb85e1 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -312,8 +312,9 @@ common_init_pci(void)
{
struct pci_controller *hose;
struct list_head resources;
+ struct pci_host_bridge *bridge;
struct pci_bus *bus;
- int next_busno;
+ int ret, next_busno;
int need_domain_info = 0;
u32 pci_mem_end;
u32 sg_base;
@@ -336,11 +337,25 @@ common_init_pci(void)
pci_add_resource_offset(&resources, hose->mem_space,
hose->mem_space->start);
- bus = pci_scan_root_bus(NULL, next_busno, alpha_mv.pci_ops,
- hose, &resources);
- if (!bus)
+ bridge = pci_alloc_host_bridge(0);
+ if (!bridge)
continue;
- hose->bus = bus;
+
+ list_splice_init(&resources, &bridge->windows);
+ bridge->dev.parent = NULL;
+ bridge->sysdata = hose;
+ bridge->busnr = next_busno;
+ bridge->ops = alpha_mv.pci_ops;
+ bridge->swizzle_irq = alpha_mv.pci_swizzle;
+ bridge->map_irq = alpha_mv.pci_map_irq;
+
+ ret = pci_scan_root_bus_bridge(bridge);
+ if (ret) {
+ pci_free_host_bridge(bridge);
+ continue;
+ }
+
+ bus = hose->bus = bridge->bus;
hose->need_domain_info = need_domain_info;
next_busno = bus->busn_res.end + 1;
/* Don't allow 8-bit bus number overflow inside the hose -
@@ -354,7 +369,6 @@ common_init_pci(void)
pcibios_claim_console_setup();
pci_assign_unassigned_resources();
- pci_fixup_irqs(alpha_mv.pci_swizzle, alpha_mv.pci_map_irq);
for (hose = hose_head; hose; hose = hose->next) {
bus = hose->bus;
if (bus)
@@ -362,7 +376,6 @@ common_init_pci(void)
}
}
-
struct pci_controller * __init
alloc_pci_controller(void)
{
@@ -379,11 +392,7 @@ alloc_pci_controller(void)
struct resource * __init
alloc_resource(void)
{
- struct resource *res;
-
- res = alloc_bootmem(sizeof(*res));
-
- return res;
+ return alloc_bootmem(sizeof(struct resource));
}
diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
index 491e6a604e82..249229ab4942 100644
--- a/arch/alpha/kernel/setup.c
+++ b/arch/alpha/kernel/setup.c
@@ -1094,8 +1094,9 @@ get_sysnames(unsigned long type, unsigned long variation, unsigned long cpu,
default: /* default to variation "0" for now */
break;
case ST_DEC_EB164:
- if (member < ARRAY_SIZE(eb164_indices))
- *variation_name = eb164_names[eb164_indices[member]];
+ if (member >= ARRAY_SIZE(eb164_indices))
+ break;
+ *variation_name = eb164_names[eb164_indices[member]];
/* PC164 may show as EB164 variation, but with EV56 CPU,
so, since no true EB164 had anything but EV5... */
if (eb164_indices[member] == 0 && cpu == EV56_CPU)
diff --git a/arch/alpha/kernel/smc37c669.c b/arch/alpha/kernel/smc37c669.c
index c803fc76ae4f..4dbd4e415041 100644
--- a/arch/alpha/kernel/smc37c669.c
+++ b/arch/alpha/kernel/smc37c669.c
@@ -2007,11 +2007,8 @@ static void __init SMC37c669_config_mode(
static unsigned char __init SMC37c669_read_config(
unsigned char index )
{
- unsigned char data;
-
- wb( &SMC37c669->index_port, index );
- data = rb( &SMC37c669->data_port );
- return data;
+ wb(&SMC37c669->index_port, index);
+ return rb(&SMC37c669->data_port);
}
/*
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 9fc560459ebd..f6726a746427 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -115,7 +115,7 @@ wait_boot_cpu_to_stop(int cpuid)
/*
* Where secondaries begin a life of C.
*/
-void
+void __init
smp_callin(void)
{
int cpuid = hard_smp_processor_id();
diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c
index 24e41bd7d3c9..3e533920371f 100644
--- a/arch/alpha/kernel/sys_marvel.c
+++ b/arch/alpha/kernel/sys_marvel.c
@@ -115,11 +115,11 @@ io7_enable_irq(struct irq_data *d)
return;
}
- spin_lock(&io7->irq_lock);
+ raw_spin_lock(&io7->irq_lock);
*ctl |= 1UL << 24;
mb();
*ctl;
- spin_unlock(&io7->irq_lock);
+ raw_spin_unlock(&io7->irq_lock);
}
static void
@@ -136,11 +136,11 @@ io7_disable_irq(struct irq_data *d)
return;
}
- spin_lock(&io7->irq_lock);
+ raw_spin_lock(&io7->irq_lock);
*ctl &= ~(1UL << 24);
mb();
*ctl;
- spin_unlock(&io7->irq_lock);
+ raw_spin_unlock(&io7->irq_lock);
}
static void
@@ -263,7 +263,7 @@ init_io7_irqs(struct io7 *io7,
*/
printk(" Interrupts reported to CPU at PE %u\n", boot_cpuid);
- spin_lock(&io7->irq_lock);
+ raw_spin_lock(&io7->irq_lock);
/* set up the error irqs */
io7_redirect_irq(io7, &io7->csrs->HLT_CTL.csr, boot_cpuid);
@@ -295,7 +295,7 @@ init_io7_irqs(struct io7 *io7,
for (i = 0; i < 16; ++i)
init_one_io7_msi(io7, i, boot_cpuid);
- spin_unlock(&io7->irq_lock);
+ raw_spin_unlock(&io7->irq_lock);
}
static void __init
diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c
index 2cfaa0e5c577..8ae04a121186 100644
--- a/arch/alpha/kernel/sys_nautilus.c
+++ b/arch/alpha/kernel/sys_nautilus.c
@@ -194,22 +194,46 @@ static struct resource irongate_mem = {
.name = "Irongate PCI MEM",
.flags = IORESOURCE_MEM,
};
+static struct resource busn_resource = {
+ .name = "PCI busn",
+ .start = 0,
+ .end = 255,
+ .flags = IORESOURCE_BUS,
+};
void __init
nautilus_init_pci(void)
{
struct pci_controller *hose = hose_head;
+ struct pci_host_bridge *bridge;
struct pci_bus *bus;
struct pci_dev *irongate;
unsigned long bus_align, bus_size, pci_mem;
unsigned long memtop = max_low_pfn << PAGE_SHIFT;
+ int ret;
+
+ bridge = pci_alloc_host_bridge(0);
+ if (!bridge)
+ return;
+
+ pci_add_resource(&bridge->windows, &ioport_resource);
+ pci_add_resource(&bridge->windows, &iomem_resource);
+ pci_add_resource(&bridge->windows, &busn_resource);
+ bridge->dev.parent = NULL;
+ bridge->sysdata = hose;
+ bridge->busnr = 0;
+ bridge->ops = alpha_mv.pci_ops;
+ bridge->swizzle_irq = alpha_mv.pci_swizzle;
+ bridge->map_irq = alpha_mv.pci_map_irq;
/* Scan our single hose. */
- bus = pci_scan_bus(0, alpha_mv.pci_ops, hose);
- if (!bus)
+ ret = pci_scan_root_bus_bridge(bridge);
+ if (ret) {
+ pci_free_host_bridge(bridge);
return;
+ }
- hose->bus = bus;
+ bus = hose->bus = bridge->bus;
pcibios_claim_one_bus(bus);
irongate = pci_get_bus_and_slot(0, 0);
@@ -254,7 +278,6 @@ nautilus_init_pci(void)
/* pci_common_swizzle() relies on bus->self being NULL
for the root bus, so just clear it. */
bus->self = NULL;
- pci_fixup_irqs(alpha_mv.pci_swizzle, alpha_mv.pci_map_irq);
pci_bus_add_devices(bus);
}
diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S
index 9b62e3fd4f03..5b4514abb234 100644
--- a/arch/alpha/kernel/systbls.S
+++ b/arch/alpha/kernel/systbls.S
@@ -532,6 +532,15 @@ sys_call_table:
.quad sys_getrandom
.quad sys_memfd_create
.quad sys_execveat
+ .quad sys_seccomp
+ .quad sys_bpf /* 515 */
+ .quad sys_userfaultfd
+ .quad sys_membarrier
+ .quad sys_mlock2
+ .quad sys_copy_file_range
+ .quad sys_preadv2 /* 520 */
+ .quad sys_pwritev2
+ .quad sys_statx
.size sys_call_table, . - sys_call_table
.type sys_call_table, @object
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index 65bb102d985b..49d3b1e63ce5 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -193,8 +193,10 @@ die_if_kernel(char * str, struct pt_regs *regs, long err, unsigned long *r9_15)
static long dummy_emul(void) { return 0; }
long (*alpha_fp_emul_imprecise)(struct pt_regs *regs, unsigned long writemask)
= (void *)dummy_emul;
+EXPORT_SYMBOL_GPL(alpha_fp_emul_imprecise);
long (*alpha_fp_emul) (unsigned long pc)
= (void *)dummy_emul;
+EXPORT_SYMBOL_GPL(alpha_fp_emul);
#else
long alpha_fp_emul_imprecise(struct pt_regs *regs, unsigned long writemask);
long alpha_fp_emul (unsigned long pc);
@@ -278,7 +280,7 @@ do_entIF(unsigned long type, struct pt_regs *regs)
case 1: /* bugcheck */
info.si_signo = SIGTRAP;
info.si_errno = 0;
- info.si_code = __SI_FAULT;
+ info.si_code = TRAP_FIXME;
info.si_addr = (void __user *) regs->pc;
info.si_trapno = 0;
send_sig_info(SIGTRAP, &info, current);
@@ -318,7 +320,7 @@ do_entIF(unsigned long type, struct pt_regs *regs)
break;
case GEN_ROPRAND:
signo = SIGFPE;
- code = __SI_FAULT;
+ code = FPE_FIXME;
break;
case GEN_DECOVF:
@@ -340,7 +342,7 @@ do_entIF(unsigned long type, struct pt_regs *regs)
case GEN_SUBRNG7:
default:
signo = SIGTRAP;
- code = __SI_FAULT;
+ code = TRAP_FIXME;
break;
}
diff --git a/arch/alpha/lib/Makefile b/arch/alpha/lib/Makefile
index 7083434dd241..a80815960364 100644
--- a/arch/alpha/lib/Makefile
+++ b/arch/alpha/lib/Makefile
@@ -20,12 +20,8 @@ lib-y = __divqu.o __remqu.o __divlu.o __remlu.o \
checksum.o \
csum_partial_copy.o \
$(ev67-y)strlen.o \
- $(ev67-y)strcat.o \
- strcpy.o \
- $(ev67-y)strncat.o \
- strncpy.o \
- $(ev6-y)stxcpy.o \
- $(ev6-y)stxncpy.o \
+ stycpy.o \
+ styncpy.o \
$(ev67-y)strchr.o \
$(ev67-y)strrchr.o \
$(ev6-y)memchr.o \
@@ -49,3 +45,17 @@ AFLAGS___remlu.o = -DREM -DINTSIZE
$(addprefix $(obj)/,__divqu.o __remqu.o __divlu.o __remlu.o): \
$(src)/$(ev6-y)divide.S FORCE
$(call if_changed_rule,as_o_S)
+
+# There are direct branches between {str*cpy,str*cat} and stx*cpy.
+# Ensure the branches are within range by merging these objects.
+
+LDFLAGS_stycpy.o := -r
+LDFLAGS_styncpy.o := -r
+
+$(obj)/stycpy.o: $(obj)/strcpy.o $(obj)/$(ev67-y)strcat.o \
+ $(obj)/$(ev6-y)stxcpy.o FORCE
+ $(call if_changed,ld)
+
+$(obj)/styncpy.o: $(obj)/strncpy.o $(obj)/$(ev67-y)strncat.o \
+ $(obj)/$(ev6-y)stxncpy.o FORCE
+ $(call if_changed,ld)
diff --git a/arch/alpha/lib/copy_user.S b/arch/alpha/lib/copy_user.S
index 159f1b7e6e49..c277a1a4383e 100644
--- a/arch/alpha/lib/copy_user.S
+++ b/arch/alpha/lib/copy_user.S
@@ -34,7 +34,7 @@
.ent __copy_user
__copy_user:
.prologue 0
- and $18,$18,$0
+ mov $18,$0
and $16,7,$3
beq $0,$35
beq $3,$36
diff --git a/arch/alpha/lib/ev6-copy_user.S b/arch/alpha/lib/ev6-copy_user.S
index 35e6710d0700..954ca03ebebe 100644
--- a/arch/alpha/lib/ev6-copy_user.S
+++ b/arch/alpha/lib/ev6-copy_user.S
@@ -45,9 +45,10 @@
# Pipeline info: Slotting & Comments
__copy_user:
.prologue 0
- andq $18, $18, $0
- subq $18, 32, $1 # .. E .. .. : Is this going to be a small copy?
- beq $0, $zerolength # U .. .. .. : U L U L
+ mov $18, $0 # .. .. .. E
+ subq $18, 32, $1 # .. .. E. .. : Is this going to be a small copy?
+ nop # .. E .. ..
+ beq $18, $zerolength # U .. .. .. : U L U L
and $16,7,$3 # .. .. .. E : is leading dest misalignment
ble $1, $onebyteloop # .. .. U .. : 1st branch : small amount of data
diff --git a/arch/alpha/lib/memset.S b/arch/alpha/lib/memset.S
index 89a26f5e89de..f824969e9e77 100644
--- a/arch/alpha/lib/memset.S
+++ b/arch/alpha/lib/memset.S
@@ -20,7 +20,7 @@
.globl memset
.globl __memset
.globl ___memset
- .globl __memsetw
+ .globl __memset16
.globl __constant_c_memset
.ent ___memset
@@ -110,8 +110,8 @@ EXPORT_SYMBOL(___memset)
EXPORT_SYMBOL(__constant_c_memset)
.align 5
- .ent __memsetw
-__memsetw:
+ .ent __memset16
+__memset16:
.prologue 0
inswl $17,0,$1 /* E0 */
@@ -123,8 +123,8 @@ __memsetw:
or $1,$4,$17 /* E0 */
br __constant_c_memset /* .. E1 */
- .end __memsetw
-EXPORT_SYMBOL(__memsetw)
+ .end __memset16
+EXPORT_SYMBOL(__memset16)
memset = ___memset
__memset = ___memset
diff --git a/arch/alpha/math-emu/math.c b/arch/alpha/math-emu/math.c
index d17d705f6545..1c2d456da7f2 100644
--- a/arch/alpha/math-emu/math.c
+++ b/arch/alpha/math-emu/math.c
@@ -53,6 +53,7 @@ extern void alpha_write_fp_reg_s (unsigned long reg, unsigned long val);
#ifdef MODULE
MODULE_DESCRIPTION("FP Software completion module");
+MODULE_LICENSE("GPL v2");
extern long (*alpha_fp_emul_imprecise)(struct pt_regs *, unsigned long);
extern long (*alpha_fp_emul) (unsigned long pc);
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index a5459698f0ee..c84e67fdea09 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -24,7 +24,7 @@ config ARC
select GENERIC_SMP_IDLE_THREAD
select HAVE_ARCH_KGDB
select HAVE_ARCH_TRACEHOOK
- select HAVE_FUTEX_CMPXCHG
+ select HAVE_FUTEX_CMPXCHG if FUTEX
select HAVE_IOREMAP_PROT
select HAVE_KPROBES
select HAVE_KRETPROBES
@@ -96,11 +96,11 @@ menu "ARC Architecture Configuration"
menu "ARC Platform/SoC/Board"
-source "arch/arc/plat-sim/Kconfig"
source "arch/arc/plat-tb10x/Kconfig"
source "arch/arc/plat-axs10x/Kconfig"
#New platform adds here
source "arch/arc/plat-eznps/Kconfig"
+source "arch/arc/plat-hsdk/Kconfig"
endmenu
@@ -419,7 +419,7 @@ endif # ISA_ARCV2
endmenu # "ARC CPU Configuration"
config LINUX_LINK_BASE
- hex "Linux Link Address"
+ hex "Kernel link address"
default "0x80000000"
help
ARC700 divides the 32 bit phy address space into two equal halves
@@ -432,6 +432,14 @@ config LINUX_LINK_BASE
If you don't know what the above means, leave this setting alone.
This needs to match memory start address specified in Device Tree
+config LINUX_RAM_BASE
+ hex "RAM base address"
+ default LINUX_LINK_BASE
+ help
+ By default Linux is linked at base of RAM. However in some special
+ cases (such as HSDK), Linux can't be linked at start of DDR, hence
+ this option.
+
config HIGHMEM
bool "High Memory Support"
select ARCH_DISCONTIGMEM_ENABLE
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index 44ef35d33956..d37f49d6a27f 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -6,8 +6,6 @@
# published by the Free Software Foundation.
#
-UTS_MACHINE := arc
-
ifeq ($(CROSS_COMPILE),)
ifndef CONFIG_CPU_BIG_ENDIAN
CROSS_COMPILE := arc-linux-
@@ -107,10 +105,11 @@ core-y += arch/arc/
# w/o this dtb won't embed into kernel binary
core-y += arch/arc/boot/dts/
-core-$(CONFIG_ARC_PLAT_SIM) += arch/arc/plat-sim/
+core-y += arch/arc/plat-sim/
core-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/plat-tb10x/
core-$(CONFIG_ARC_PLAT_AXS10X) += arch/arc/plat-axs10x/
core-$(CONFIG_ARC_PLAT_EZNPS) += arch/arc/plat-eznps/
+core-$(CONFIG_ARC_SOC_HSDK) += arch/arc/plat-hsdk/
ifdef CONFIG_ARC_PLAT_EZNPS
KBUILD_CPPFLAGS += -I$(srctree)/arch/arc/plat-eznps/include
diff --git a/arch/arc/boot/dts/axc001.dtsi b/arch/arc/boot/dts/axc001.dtsi
index 53ce226f77a5..fdc266504ada 100644
--- a/arch/arc/boot/dts/axc001.dtsi
+++ b/arch/arc/boot/dts/axc001.dtsi
@@ -15,15 +15,15 @@
/ {
compatible = "snps,arc";
- #address-cells = <1>;
- #size-cells = <1>;
+ #address-cells = <2>;
+ #size-cells = <2>;
cpu_card {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
- ranges = <0x00000000 0xf0000000 0x10000000>;
+ ranges = <0x00000000 0x0 0xf0000000 0x10000000>;
core_clk: core_clk {
#clock-cells = <0>;
@@ -91,23 +91,21 @@
mb_intc: dw-apb-ictl@0xe0012000 {
#interrupt-cells = <1>;
compatible = "snps,dw-apb-ictl";
- reg = < 0xe0012000 0x200 >;
+ reg = < 0x0 0xe0012000 0x0 0x200 >;
interrupt-controller;
interrupt-parent = <&core_intc>;
interrupts = < 7 >;
};
memory {
- #address-cells = <1>;
- #size-cells = <1>;
- ranges = <0x00000000 0x80000000 0x20000000>;
device_type = "memory";
- reg = <0x80000000 0x1b000000>; /* (512 - 32) MiB */
+ /* CONFIG_LINUX_RAM_BASE needs to match low mem start */
+ reg = <0x0 0x80000000 0x0 0x1b000000>; /* (512 - 32) MiB */
};
reserved-memory {
- #address-cells = <1>;
- #size-cells = <1>;
+ #address-cells = <2>;
+ #size-cells = <2>;
ranges;
/*
* We just move frame buffer area to the very end of
@@ -118,7 +116,7 @@
*/
frame_buffer: frame_buffer@9e000000 {
compatible = "shared-dma-pool";
- reg = <0x9e000000 0x2000000>;
+ reg = <0x0 0x9e000000 0x0 0x2000000>;
no-map;
};
};
diff --git a/arch/arc/boot/dts/axc003.dtsi b/arch/arc/boot/dts/axc003.dtsi
index 14df46f141bf..4e6e9f57e790 100644
--- a/arch/arc/boot/dts/axc003.dtsi
+++ b/arch/arc/boot/dts/axc003.dtsi
@@ -14,20 +14,27 @@
/ {
compatible = "snps,arc";
- #address-cells = <1>;
- #size-cells = <1>;
+ #address-cells = <2>;
+ #size-cells = <2>;
cpu_card {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
- ranges = <0x00000000 0xf0000000 0x10000000>;
+ ranges = <0x00000000 0x0 0xf0000000 0x10000000>;
- core_clk: core_clk {
+ input_clk: input-clk {
#clock-cells = <0>;
compatible = "fixed-clock";
- clock-frequency = <90000000>;
+ clock-frequency = <33333333>;
+ };
+
+ core_clk: core-clk@80 {
+ compatible = "snps,axs10x-arc-pll-clock";
+ reg = <0x80 0x10>, <0x100 0x10>;
+ #clock-cells = <0>;
+ clocks = <&input_clk>;
};
core_intc: archs-intc@cpu {
@@ -94,30 +101,29 @@
mb_intc: dw-apb-ictl@0xe0012000 {
#interrupt-cells = <1>;
compatible = "snps,dw-apb-ictl";
- reg = < 0xe0012000 0x200 >;
+ reg = < 0x0 0xe0012000 0x0 0x200 >;
interrupt-controller;
interrupt-parent = <&core_intc>;
interrupts = < 24 >;
};
memory {
- #address-cells = <1>;
- #size-cells = <1>;
- ranges = <0x00000000 0x80000000 0x40000000>;
device_type = "memory";
- reg = <0x80000000 0x20000000>; /* 512MiB */
+ /* CONFIG_LINUX_RAM_BASE needs to match low mem start */
+ reg = <0x0 0x80000000 0x0 0x20000000 /* 512 MiB low mem */
+ 0x1 0xc0000000 0x0 0x40000000>; /* 1 GiB highmem */
};
reserved-memory {
- #address-cells = <1>;
- #size-cells = <1>;
+ #address-cells = <2>;
+ #size-cells = <2>;
ranges;
/*
* Move frame buffer out of IOC aperture (0x8z-0xAz).
*/
frame_buffer: frame_buffer@be000000 {
compatible = "shared-dma-pool";
- reg = <0xbe000000 0x2000000>;
+ reg = <0x0 0xbe000000 0x0 0x2000000>;
no-map;
};
};
diff --git a/arch/arc/boot/dts/axc003_idu.dtsi b/arch/arc/boot/dts/axc003_idu.dtsi
index 695f9fa1996b..63954a8b0100 100644
--- a/arch/arc/boot/dts/axc003_idu.dtsi
+++ b/arch/arc/boot/dts/axc003_idu.dtsi
@@ -14,20 +14,27 @@
/ {
compatible = "snps,arc";
- #address-cells = <1>;
- #size-cells = <1>;
+ #address-cells = <2>;
+ #size-cells = <2>;
cpu_card {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
- ranges = <0x00000000 0xf0000000 0x10000000>;
+ ranges = <0x00000000 0x0 0xf0000000 0x10000000>;
- core_clk: core_clk {
+ input_clk: input-clk {
#clock-cells = <0>;
compatible = "fixed-clock";
- clock-frequency = <100000000>;
+ clock-frequency = <33333333>;
+ };
+
+ core_clk: core-clk@80 {
+ compatible = "snps,axs10x-arc-pll-clock";
+ reg = <0x80 0x10>, <0x100 0x10>;
+ #clock-cells = <0>;
+ clocks = <&input_clk>;
};
core_intc: archs-intc@cpu {
@@ -100,30 +107,29 @@
mb_intc: dw-apb-ictl@0xe0012000 {
#interrupt-cells = <1>;
compatible = "snps,dw-apb-ictl";
- reg = < 0xe0012000 0x200 >;
+ reg = < 0x0 0xe0012000 0x0 0x200 >;
interrupt-controller;
interrupt-parent = <&idu_intc>;
interrupts = <0>;
};
memory {
- #address-cells = <1>;
- #size-cells = <1>;
- ranges = <0x00000000 0x80000000 0x40000000>;
device_type = "memory";
- reg = <0x80000000 0x20000000>; /* 512MiB */
+ /* CONFIG_LINUX_RAM_BASE needs to match low mem start */
+ reg = <0x0 0x80000000 0x0 0x20000000 /* 512 MiB low mem */
+ 0x1 0xc0000000 0x0 0x40000000>; /* 1 GiB highmem */
};
reserved-memory {
- #address-cells = <1>;
- #size-cells = <1>;
+ #address-cells = <2>;
+ #size-cells = <2>;
ranges;
/*
* Move frame buffer out of IOC aperture (0x8z-0xAz).
*/
frame_buffer: frame_buffer@be000000 {
compatible = "shared-dma-pool";
- reg = <0xbe000000 0x2000000>;
+ reg = <0x0 0xbe000000 0x0 0x2000000>;
no-map;
};
};
diff --git a/arch/arc/boot/dts/axs10x_mb.dtsi b/arch/arc/boot/dts/axs10x_mb.dtsi
index 41cfb29b62c1..e114000a84f5 100644
--- a/arch/arc/boot/dts/axs10x_mb.dtsi
+++ b/arch/arc/boot/dts/axs10x_mb.dtsi
@@ -13,7 +13,7 @@
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
- ranges = <0x00000000 0xe0000000 0x10000000>;
+ ranges = <0x00000000 0x0 0xe0000000 0x10000000>;
interrupt-parent = <&mb_intc>;
i2sclk: i2sclk@100a0 {
@@ -44,7 +44,14 @@
mmcclk: mmcclk {
compatible = "fixed-clock";
- clock-frequency = <50000000>;
+ /*
+ * DW sdio controller has external ciu clock divider
+ * controlled via register in SDIO IP. It divides
+ * sdio_ref_clk (which comes from CGU) by 16 for
+ * default. So default mmcclk clock (which comes
+ * to sdk_in) is 25000000 Hz.
+ */
+ clock-frequency = <25000000>;
#clock-cells = <0>;
};
@@ -101,7 +108,6 @@
mmc@0x15000 {
compatible = "altr,socfpga-dw-mshc";
reg = < 0x15000 0x400 >;
- num-slots = < 1 >;
fifo-depth = < 16 >;
card-detect-delay = < 200 >;
clocks = <&apbclk>, <&mmcclk>;
diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts
new file mode 100644
index 000000000000..8adde1b492f1
--- /dev/null
+++ b/arch/arc/boot/dts/hsdk.dts
@@ -0,0 +1,215 @@
+/*
+ * Copyright (C) 2017 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * Device Tree for ARC HS Development Kit
+ */
+/dts-v1/;
+
+#include <dt-bindings/net/ti-dp83867.h>
+#include <dt-bindings/reset/snps,hsdk-reset.h>
+
+/ {
+ model = "snps,hsdk";
+ compatible = "snps,hsdk";
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ chosen {
+ bootargs = "earlycon=uart8250,mmio32,0xf0005000,115200n8 console=ttyS0,115200n8 debug print-fatal-signals=1";
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "snps,archs38";
+ reg = <0>;
+ clocks = <&core_clk>;
+ };
+
+ cpu@1 {
+ device_type = "cpu";
+ compatible = "snps,archs38";
+ reg = <1>;
+ clocks = <&core_clk>;
+ };
+
+ cpu@2 {
+ device_type = "cpu";
+ compatible = "snps,archs38";
+ reg = <2>;
+ clocks = <&core_clk>;
+ };
+
+ cpu@3 {
+ device_type = "cpu";
+ compatible = "snps,archs38";
+ reg = <3>;
+ clocks = <&core_clk>;
+ };
+ };
+
+ input_clk: input-clk {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <33333333>;
+ };
+
+ cpu_intc: cpu-interrupt-controller {
+ compatible = "snps,archs-intc";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+
+ idu_intc: idu-interrupt-controller {
+ compatible = "snps,archs-idu-intc";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ interrupt-parent = <&cpu_intc>;
+ };
+
+ arcpct: pct {
+ compatible = "snps,archs-pct";
+ };
+
+ /* TIMER0 with interrupt for clockevent */
+ timer {
+ compatible = "snps,arc-timer";
+ interrupts = <16>;
+ interrupt-parent = <&cpu_intc>;
+ clocks = <&core_clk>;
+ };
+
+ /* 64-bit Global Free Running Counter */
+ gfrc {
+ compatible = "snps,archs-timer-gfrc";
+ clocks = <&core_clk>;
+ };
+
+ soc {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ interrupt-parent = <&idu_intc>;
+
+ ranges = <0x00000000 0xf0000000 0x10000000>;
+
+ cgu_rst: reset-controller@8a0 {
+ compatible = "snps,hsdk-reset";
+ #reset-cells = <1>;
+ reg = <0x8A0 0x4>, <0xFF0 0x4>;
+ };
+
+ core_clk: core-clk@0 {
+ compatible = "snps,hsdk-core-pll-clock";
+ reg = <0x00 0x10>, <0x14B8 0x4>;
+ #clock-cells = <0>;
+ clocks = <&input_clk>;
+ };
+
+ serial: serial@5000 {
+ compatible = "snps,dw-apb-uart";
+ reg = <0x5000 0x100>;
+ clock-frequency = <33330000>;
+ interrupts = <6>;
+ baud = <115200>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ };
+
+ gmacclk: gmacclk {
+ compatible = "fixed-clock";
+ clock-frequency = <400000000>;
+ #clock-cells = <0>;
+ };
+
+ mmcclk_ciu: mmcclk-ciu {
+ compatible = "fixed-clock";
+ /*
+ * DW sdio controller has external ciu clock divider
+ * controlled via register in SDIO IP. Due to its
+ * unexpected default value (it should devide by 1
+ * but it devides by 8) SDIO IP uses wrong clock and
+ * works unstable (see STAR 9001204800)
+ * So add temporary fix and change clock frequency
+ * from 100000000 to 12500000 Hz until we fix dw sdio
+ * driver itself.
+ */
+ clock-frequency = <12500000>;
+ #clock-cells = <0>;
+ };
+
+ mmcclk_biu: mmcclk-biu {
+ compatible = "fixed-clock";
+ clock-frequency = <400000000>;
+ #clock-cells = <0>;
+ };
+
+ ethernet@8000 {
+ #interrupt-cells = <1>;
+ compatible = "snps,dwmac";
+ reg = <0x8000 0x2000>;
+ interrupts = <10>;
+ interrupt-names = "macirq";
+ phy-mode = "rgmii";
+ snps,pbl = <32>;
+ clocks = <&gmacclk>;
+ clock-names = "stmmaceth";
+ phy-handle = <&phy0>;
+ resets = <&cgu_rst HSDK_ETH_RESET>;
+ reset-names = "stmmaceth";
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "snps,dwmac-mdio";
+ phy0: ethernet-phy@0 {
+ reg = <0>;
+ ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
+ ti,tx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
+ ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+ };
+ };
+ };
+
+ ohci@60000 {
+ compatible = "snps,hsdk-v1.0-ohci", "generic-ohci";
+ reg = <0x60000 0x100>;
+ interrupts = <15>;
+ };
+
+ ehci@40000 {
+ compatible = "snps,hsdk-v1.0-ehci", "generic-ehci";
+ reg = <0x40000 0x100>;
+ interrupts = <15>;
+ };
+
+ mmc@a000 {
+ compatible = "altr,socfpga-dw-mshc";
+ reg = <0xa000 0x400>;
+ num-slots = <1>;
+ fifo-depth = <16>;
+ card-detect-delay = <200>;
+ clocks = <&mmcclk_biu>, <&mmcclk_ciu>;
+ clock-names = "biu", "ciu";
+ interrupts = <12>;
+ bus-width = <4>;
+ };
+ };
+
+ memory@80000000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ device_type = "memory";
+ reg = <0x80000000 0x40000000>; /* 1 GiB */
+ };
+};
diff --git a/arch/arc/boot/dts/nsim_hs.dts b/arch/arc/boot/dts/nsim_hs.dts
index 3772c40c245e..8d787b251f73 100644
--- a/arch/arc/boot/dts/nsim_hs.dts
+++ b/arch/arc/boot/dts/nsim_hs.dts
@@ -18,7 +18,7 @@
memory {
device_type = "memory";
- /* CONFIG_LINUX_LINK_BASE needs to match low mem start */
+ /* CONFIG_LINUX_RAM_BASE needs to match low mem start */
reg = <0x0 0x80000000 0x0 0x20000000 /* 512 MB low mem */
0x1 0x00000000 0x0 0x40000000>; /* 1 GB highmem */
};
diff --git a/arch/arc/boot/dts/vdk_axs10x_mb.dtsi b/arch/arc/boot/dts/vdk_axs10x_mb.dtsi
index 459fc656b759..48bb4b4cd234 100644
--- a/arch/arc/boot/dts/vdk_axs10x_mb.dtsi
+++ b/arch/arc/boot/dts/vdk_axs10x_mb.dtsi
@@ -104,7 +104,6 @@
mmc@0x15000 {
compatible = "snps,dw-mshc";
reg = <0x15000 0x400>;
- num-slots = <1>;
fifo-depth = <1024>;
card-detect-delay = <200>;
clocks = <&apbclk>, <&mmcclk>;
diff --git a/arch/arc/configs/axs101_defconfig b/arch/arc/configs/axs101_defconfig
index 6980b966a364..ec7c849a5c8e 100644
--- a/arch/arc/configs/axs101_defconfig
+++ b/arch/arc/configs/axs101_defconfig
@@ -105,7 +105,7 @@ CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_STRIP_ASM_SYMS=y
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
# CONFIG_SCHED_DEBUG is not set
# CONFIG_DEBUG_PREEMPT is not set
diff --git a/arch/arc/configs/axs103_defconfig b/arch/arc/configs/axs103_defconfig
index 2233f5777a71..63d3cf69e0b0 100644
--- a/arch/arc/configs/axs103_defconfig
+++ b/arch/arc/configs/axs103_defconfig
@@ -104,7 +104,7 @@ CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_STRIP_ASM_SYMS=y
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
# CONFIG_SCHED_DEBUG is not set
# CONFIG_DEBUG_PREEMPT is not set
diff --git a/arch/arc/configs/axs103_smp_defconfig b/arch/arc/configs/axs103_smp_defconfig
index 30a3d4cf53d2..f613ecac14a7 100644
--- a/arch/arc/configs/axs103_smp_defconfig
+++ b/arch/arc/configs/axs103_smp_defconfig
@@ -107,7 +107,7 @@ CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_STRIP_ASM_SYMS=y
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
# CONFIG_SCHED_DEBUG is not set
# CONFIG_DEBUG_PREEMPT is not set
diff --git a/arch/arc/configs/haps_hs_defconfig b/arch/arc/configs/haps_hs_defconfig
index 57b3e599322f..db04ea4dd2d9 100644
--- a/arch/arc/configs/haps_hs_defconfig
+++ b/arch/arc/configs/haps_hs_defconfig
@@ -21,7 +21,6 @@ CONFIG_MODULES=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
CONFIG_ISA_ARCV2=y
CONFIG_ARC_BUILTIN_DTB_NAME="haps_hs"
CONFIG_PREEMPT=y
diff --git a/arch/arc/configs/haps_hs_smp_defconfig b/arch/arc/configs/haps_hs_smp_defconfig
index f85985adebb2..3507be2af6fe 100644
--- a/arch/arc/configs/haps_hs_smp_defconfig
+++ b/arch/arc/configs/haps_hs_smp_defconfig
@@ -23,7 +23,6 @@ CONFIG_MODULES=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
CONFIG_ISA_ARCV2=y
CONFIG_SMP=y
CONFIG_ARC_BUILTIN_DTB_NAME="haps_hs_idu"
@@ -85,5 +84,5 @@ CONFIG_TMPFS=y
CONFIG_NFS_FS=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
# CONFIG_DEBUG_PREEMPT is not set
diff --git a/arch/arc/configs/hsdk_defconfig b/arch/arc/configs/hsdk_defconfig
new file mode 100644
index 000000000000..15f0f6b5fec1
--- /dev/null
+++ b/arch/arc/configs/hsdk_defconfig
@@ -0,0 +1,81 @@
+CONFIG_DEFAULT_HOSTNAME="ARCLinux"
+CONFIG_SYSVIPC=y
+# CONFIG_CROSS_MEMORY_ATTACH is not set
+CONFIG_NO_HZ_IDLE=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_NAMESPACES=y
+# CONFIG_UTS_NS is not set
+# CONFIG_PID_NS is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE="../../arc_initramfs_hs/"
+CONFIG_EMBEDDED=y
+CONFIG_PERF_EVENTS=y
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_COMPAT_BRK is not set
+CONFIG_SLAB=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_ARC_SOC_HSDK=y
+CONFIG_ISA_ARCV2=y
+CONFIG_SMP=y
+CONFIG_LINUX_LINK_BASE=0x90000000
+CONFIG_LINUX_RAM_BASE=0x80000000
+CONFIG_ARC_BUILTIN_DTB_NAME="hsdk"
+CONFIG_PREEMPT=y
+# CONFIG_COMPACTION is not set
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_DEVTMPFS=y
+# CONFIG_STANDALONE is not set
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+# CONFIG_FIRMWARE_IN_KERNEL is not set
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_NETDEVICES=y
+CONFIG_STMMAC_ETH=y
+CONFIG_MICREL_PHY=y
+CONFIG_INPUT_EVDEV=y
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+# CONFIG_LEGACY_PTYS is not set
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_DW=y
+CONFIG_SERIAL_OF_PLATFORM=y
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+CONFIG_FB=y
+CONFIG_FB_UDL=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_HCD_PLATFORM=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
+CONFIG_USB_STORAGE=y
+CONFIG_MMC=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MMC_DW=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_RESET_HSDK=y
+CONFIG_EXT3_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_TMPFS=y
+CONFIG_NFS_FS=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_ISO8859_1=y
+# CONFIG_ENABLE_WARN_DEPRECATED is not set
+# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_STRIP_ASM_SYMS=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
+CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_PREEMPT is not set
+# CONFIG_FTRACE is not set
+CONFIG_CRYPTO_ECHAINIV=y
diff --git a/arch/arc/configs/nps_defconfig b/arch/arc/configs/nps_defconfig
index ede625c76216..7c9c706ae7f6 100644
--- a/arch/arc/configs/nps_defconfig
+++ b/arch/arc/configs/nps_defconfig
@@ -39,7 +39,6 @@ CONFIG_IP_PNP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
diff --git a/arch/arc/configs/nsim_700_defconfig b/arch/arc/configs/nsim_700_defconfig
index b0066a749d4c..6dff83a238b8 100644
--- a/arch/arc/configs/nsim_700_defconfig
+++ b/arch/arc/configs/nsim_700_defconfig
@@ -23,7 +23,6 @@ CONFIG_MODULES=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
CONFIG_ARC_BUILTIN_DTB_NAME="nsim_700"
CONFIG_PREEMPT=y
# CONFIG_COMPACTION is not set
diff --git a/arch/arc/configs/nsim_hs_defconfig b/arch/arc/configs/nsim_hs_defconfig
index ebe9ebb92933..31ee51b987e7 100644
--- a/arch/arc/configs/nsim_hs_defconfig
+++ b/arch/arc/configs/nsim_hs_defconfig
@@ -26,7 +26,6 @@ CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
CONFIG_ISA_ARCV2=y
CONFIG_ARC_BUILTIN_DTB_NAME="nsim_hs"
CONFIG_PREEMPT=y
diff --git a/arch/arc/configs/nsim_hs_smp_defconfig b/arch/arc/configs/nsim_hs_smp_defconfig
index 4bde43278be6..8d3b1f67cae4 100644
--- a/arch/arc/configs/nsim_hs_smp_defconfig
+++ b/arch/arc/configs/nsim_hs_smp_defconfig
@@ -24,7 +24,6 @@ CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
CONFIG_ISA_ARCV2=y
CONFIG_SMP=y
CONFIG_ARC_BUILTIN_DTB_NAME="nsim_hs_idu"
diff --git a/arch/arc/configs/nsimosci_defconfig b/arch/arc/configs/nsimosci_defconfig
index f6fb3d26557e..6168ce2ac2ef 100644
--- a/arch/arc/configs/nsimosci_defconfig
+++ b/arch/arc/configs/nsimosci_defconfig
@@ -23,7 +23,6 @@ CONFIG_MODULES=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
CONFIG_ARC_BUILTIN_DTB_NAME="nsimosci"
# CONFIG_COMPACTION is not set
CONFIG_NET=y
diff --git a/arch/arc/configs/nsimosci_hs_defconfig b/arch/arc/configs/nsimosci_hs_defconfig
index b9f0fe00044b..a70bdeb2b3fd 100644
--- a/arch/arc/configs/nsimosci_hs_defconfig
+++ b/arch/arc/configs/nsimosci_hs_defconfig
@@ -23,7 +23,6 @@ CONFIG_MODULES=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
CONFIG_ISA_ARCV2=y
CONFIG_ARC_BUILTIN_DTB_NAME="nsimosci_hs"
# CONFIG_COMPACTION is not set
diff --git a/arch/arc/configs/nsimosci_hs_smp_defconfig b/arch/arc/configs/nsimosci_hs_smp_defconfig
index 155add7761ed..ef96406c446e 100644
--- a/arch/arc/configs/nsimosci_hs_smp_defconfig
+++ b/arch/arc/configs/nsimosci_hs_smp_defconfig
@@ -18,7 +18,6 @@ CONFIG_MODULES=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
CONFIG_ISA_ARCV2=y
CONFIG_SMP=y
# CONFIG_ARC_TIMERS_64BIT is not set
diff --git a/arch/arc/configs/tb10x_defconfig b/arch/arc/configs/tb10x_defconfig
index 4c5118384eb5..f30182549395 100644
--- a/arch/arc/configs/tb10x_defconfig
+++ b/arch/arc/configs/tb10x_defconfig
@@ -38,7 +38,6 @@ CONFIG_IP_MULTICAST=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
diff --git a/arch/arc/configs/vdk_hs38_defconfig b/arch/arc/configs/vdk_hs38_defconfig
index c0d6a010751a..4fcf4f2503f6 100644
--- a/arch/arc/configs/vdk_hs38_defconfig
+++ b/arch/arc/configs/vdk_hs38_defconfig
@@ -94,7 +94,7 @@ CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_STRIP_ASM_SYMS=y
CONFIG_DEBUG_SHIRQ=y
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
# CONFIG_SCHED_DEBUG is not set
# CONFIG_DEBUG_PREEMPT is not set
diff --git a/arch/arc/configs/vdk_hs38_smp_defconfig b/arch/arc/configs/vdk_hs38_smp_defconfig
index 5c0971787acf..7b71464f6c2f 100644
--- a/arch/arc/configs/vdk_hs38_smp_defconfig
+++ b/arch/arc/configs/vdk_hs38_smp_defconfig
@@ -98,7 +98,7 @@ CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_STRIP_ASM_SYMS=y
CONFIG_DEBUG_SHIRQ=y
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
# CONFIG_SCHED_DEBUG is not set
# CONFIG_DEBUG_PREEMPT is not set
diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild
index 7bee4e4799fd..353dae386b2f 100644
--- a/arch/arc/include/asm/Kbuild
+++ b/arch/arc/include/asm/Kbuild
@@ -1,52 +1,27 @@
-generic-y += auxvec.h
-generic-y += bitsperlong.h
generic-y += bugs.h
generic-y += clkdev.h
generic-y += device.h
generic-y += div64.h
generic-y += emergency-restart.h
-generic-y += errno.h
generic-y += extable.h
generic-y += fb.h
-generic-y += fcntl.h
generic-y += ftrace.h
generic-y += hardirq.h
generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += kmap_types.h
-generic-y += kvm_para.h
generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
-generic-y += mman.h
-generic-y += msgbuf.h
generic-y += msi.h
-generic-y += param.h
generic-y += parport.h
generic-y += pci.h
generic-y += percpu.h
-generic-y += poll.h
-generic-y += posix_types.h
generic-y += preempt.h
-generic-y += resource.h
-generic-y += sembuf.h
-generic-y += shmbuf.h
-generic-y += siginfo.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += stat.h
-generic-y += statfs.h
-generic-y += termbits.h
-generic-y += termios.h
generic-y += topology.h
generic-y += trace_clock.h
-generic-y += types.h
-generic-y += ucontext.h
generic-y += user.h
generic-y += vga.h
generic-y += word-at-a-time.h
diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h
index ba8e802dba80..b1c56d35f2a9 100644
--- a/arch/arc/include/asm/arcregs.h
+++ b/arch/arc/include/asm/arcregs.h
@@ -98,6 +98,7 @@
/* Auxiliary registers */
#define AUX_IDENTITY 4
+#define AUX_EXEC_CTRL 8
#define AUX_INTR_VEC_BASE 0x25
#define AUX_VOL 0x5e
@@ -135,12 +136,12 @@ struct bcr_identity {
#endif
};
-struct bcr_isa {
+struct bcr_isa_arcv2 {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int div_rem:4, pad2:4, ldd:1, unalign:1, atomic:1, be:1,
- pad1:11, atomic1:1, ver:8;
+ pad1:12, ver:8;
#else
- unsigned int ver:8, atomic1:1, pad1:11, be:1, atomic:1, unalign:1,
+ unsigned int ver:8, pad1:12, be:1, atomic:1, unalign:1,
ldd:1, pad2:4, div_rem:4;
#endif
};
@@ -263,13 +264,13 @@ struct cpuinfo_arc {
struct cpuinfo_arc_mmu mmu;
struct cpuinfo_arc_bpu bpu;
struct bcr_identity core;
- struct bcr_isa isa;
+ struct bcr_isa_arcv2 isa;
const char *details, *name;
unsigned int vec_base;
struct cpuinfo_arc_ccm iccm, dccm;
struct {
unsigned int swap:1, norm:1, minmax:1, barrel:1, crc:1, swape:1, pad1:2,
- fpu_sp:1, fpu_dp:1, pad2:6,
+ fpu_sp:1, fpu_dp:1, dual_iss_enb:1, dual_iss_exist:1, pad2:4,
debug:1, ap:1, smart:1, rtt:1, pad3:4,
timer0:1, timer1:1, rtc:1, gfrc:1, pad4:4;
} extn;
diff --git a/arch/arc/include/asm/atomic.h b/arch/arc/include/asm/atomic.h
index 54b54da6384c..11859287c52a 100644
--- a/arch/arc/include/asm/atomic.h
+++ b/arch/arc/include/asm/atomic.h
@@ -123,6 +123,8 @@ static inline void atomic_set(atomic_t *v, int i)
atomic_ops_unlock(flags);
}
+#define atomic_set_release(v, i) atomic_set((v), (i))
+
#endif
/*
diff --git a/arch/arc/include/asm/cache.h b/arch/arc/include/asm/cache.h
index 19ebddffb279..8486f328cc5d 100644
--- a/arch/arc/include/asm/cache.h
+++ b/arch/arc/include/asm/cache.h
@@ -47,7 +47,8 @@
: "r"(data), "r"(ptr)); \
})
-#define ARCH_DMA_MINALIGN L1_CACHE_BYTES
+/* Largest line length for either L1 or L2 is 128 bytes */
+#define ARCH_DMA_MINALIGN 128
extern void arc_cache_init(void);
extern char *arc_cache_mumbojumbo(int cpu_id, char *buf, int len);
@@ -95,8 +96,12 @@ extern unsigned long perip_base, perip_end;
#define ARC_REG_SLC_CTRL 0x903
#define ARC_REG_SLC_FLUSH 0x904
#define ARC_REG_SLC_INVALIDATE 0x905
+#define ARC_AUX_SLC_IVDL 0x910
+#define ARC_AUX_SLC_FLDL 0x912
#define ARC_REG_SLC_RGN_START 0x914
+#define ARC_REG_SLC_RGN_START1 0x915
#define ARC_REG_SLC_RGN_END 0x916
+#define ARC_REG_SLC_RGN_END1 0x917
/* Bit val in SLC_CONTROL */
#define SLC_CTRL_DIS 0x001
diff --git a/arch/arc/include/asm/entry-compact.h b/arch/arc/include/asm/entry-compact.h
index 14c310f2e0b1..ec36d5b6d435 100644
--- a/arch/arc/include/asm/entry-compact.h
+++ b/arch/arc/include/asm/entry-compact.h
@@ -192,6 +192,12 @@
PUSHAX lp_start
PUSHAX erbta
+#ifdef CONFIG_ARC_PLAT_EZNPS
+ .word CTOP_INST_SCHD_RW
+ PUSHAX CTOP_AUX_GPA1
+ PUSHAX CTOP_AUX_EFLAGS
+#endif
+
lr r9, [ecr]
st r9, [sp, PT_event] /* EV_Trap expects r9 to have ECR */
.endm
@@ -208,6 +214,12 @@
* by hardware and that is not good.
*-------------------------------------------------------------*/
.macro EXCEPTION_EPILOGUE
+#ifdef CONFIG_ARC_PLAT_EZNPS
+ .word CTOP_INST_SCHD_RW
+ POPAX CTOP_AUX_EFLAGS
+ POPAX CTOP_AUX_GPA1
+#endif
+
POPAX erbta
POPAX lp_start
POPAX lp_end
@@ -265,6 +277,12 @@
PUSHAX lp_end
PUSHAX lp_start
PUSHAX bta_l\LVL\()
+
+#ifdef CONFIG_ARC_PLAT_EZNPS
+ .word CTOP_INST_SCHD_RW
+ PUSHAX CTOP_AUX_GPA1
+ PUSHAX CTOP_AUX_EFLAGS
+#endif
.endm
/*--------------------------------------------------------------
@@ -277,6 +295,12 @@
* by hardware and that is not good.
*-------------------------------------------------------------*/
.macro INTERRUPT_EPILOGUE LVL
+#ifdef CONFIG_ARC_PLAT_EZNPS
+ .word CTOP_INST_SCHD_RW
+ POPAX CTOP_AUX_EFLAGS
+ POPAX CTOP_AUX_GPA1
+#endif
+
POPAX bta_l\LVL\()
POPAX lp_start
POPAX lp_end
diff --git a/arch/arc/include/asm/futex.h b/arch/arc/include/asm/futex.h
index 11e1b1f3acda..eb887dd13e74 100644
--- a/arch/arc/include/asm/futex.h
+++ b/arch/arc/include/asm/futex.h
@@ -73,20 +73,11 @@
#endif
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+ u32 __user *uaddr)
{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
int oldval = 0, ret;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
- return -EFAULT;
-
#ifndef CONFIG_ARC_HAS_LLSC
preempt_disable(); /* to guarantee atomic r-m-w of futex op */
#endif
@@ -118,30 +109,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
preempt_enable();
#endif
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ:
- ret = (oldval == cmparg);
- break;
- case FUTEX_OP_CMP_NE:
- ret = (oldval != cmparg);
- break;
- case FUTEX_OP_CMP_LT:
- ret = (oldval < cmparg);
- break;
- case FUTEX_OP_CMP_GE:
- ret = (oldval >= cmparg);
- break;
- case FUTEX_OP_CMP_LE:
- ret = (oldval <= cmparg);
- break;
- case FUTEX_OP_CMP_GT:
- ret = (oldval > cmparg);
- break;
- default:
- ret = -ENOSYS;
- }
- }
+ if (!ret)
+ *oval = oldval;
+
return ret;
}
diff --git a/arch/arc/include/asm/irqflags-arcv2.h b/arch/arc/include/asm/irqflags-arcv2.h
index a64c447b0337..8a4f77ea3238 100644
--- a/arch/arc/include/asm/irqflags-arcv2.h
+++ b/arch/arc/include/asm/irqflags-arcv2.h
@@ -47,9 +47,6 @@
#define ISA_INIT_STATUS_BITS (STATUS_IE_MASK | STATUS_AD_MASK | \
(ARCV2_IRQ_DEF_PRIO << 1))
-/* SLEEP needs default irq priority (<=) which can interrupt the doze */
-#define ISA_SLEEP_ARG (0x10 | ARCV2_IRQ_DEF_PRIO)
-
#ifndef __ASSEMBLY__
/*
diff --git a/arch/arc/include/asm/irqflags-compact.h b/arch/arc/include/asm/irqflags-compact.h
index 4c6eed80cd8b..fcb80171fc34 100644
--- a/arch/arc/include/asm/irqflags-compact.h
+++ b/arch/arc/include/asm/irqflags-compact.h
@@ -43,8 +43,6 @@
#define ISA_INIT_STATUS_BITS STATUS_IE_MASK
-#define ISA_SLEEP_ARG 0x3
-
#ifndef __ASSEMBLY__
/******************************************************************
diff --git a/arch/arc/include/asm/mmu.h b/arch/arc/include/asm/mmu.h
index db7319e9b506..efb79fafff1d 100644
--- a/arch/arc/include/asm/mmu.h
+++ b/arch/arc/include/asm/mmu.h
@@ -94,6 +94,8 @@ static inline int is_pae40_enabled(void)
return IS_ENABLED(CONFIG_ARC_HAS_PAE40);
}
+extern int pae40_exist_but_not_enab(void);
+
#endif /* !__ASSEMBLY__ */
#endif
diff --git a/arch/arc/include/asm/page.h b/arch/arc/include/asm/page.h
index 296c3426a6ad..109baa06831c 100644
--- a/arch/arc/include/asm/page.h
+++ b/arch/arc/include/asm/page.h
@@ -85,7 +85,7 @@ typedef pte_t * pgtable_t;
*/
#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT)
-#define ARCH_PFN_OFFSET virt_to_pfn(CONFIG_LINUX_LINK_BASE)
+#define ARCH_PFN_OFFSET virt_to_pfn(CONFIG_LINUX_RAM_BASE)
#ifdef CONFIG_FLATMEM
#define pfn_valid(pfn) (((pfn) - ARCH_PFN_OFFSET) < max_mapnr)
diff --git a/arch/arc/include/asm/processor.h b/arch/arc/include/asm/processor.h
index 4104a0839214..8ee41e988169 100644
--- a/arch/arc/include/asm/processor.h
+++ b/arch/arc/include/asm/processor.h
@@ -27,6 +27,13 @@ struct arc_fpu {
};
#endif
+#ifdef CONFIG_ARC_PLAT_EZNPS
+struct eznps_dp {
+ unsigned int eflags;
+ unsigned int gpa1;
+};
+#endif
+
/* Arch specific stuff which needs to be saved per task.
* However these items are not so important so as to earn a place in
* struct thread_info
@@ -38,6 +45,9 @@ struct thread_struct {
#ifdef CONFIG_ARC_FPU_SAVE_RESTORE
struct arc_fpu fpu;
#endif
+#ifdef CONFIG_ARC_PLAT_EZNPS
+ struct eznps_dp dp;
+#endif
};
#define INIT_THREAD { \
@@ -68,9 +78,6 @@ struct task_struct;
#endif
-#define copy_segments(tsk, mm) do { } while (0)
-#define release_segments(mm) do { } while (0)
-
#define KSTK_EIP(tsk) (task_pt_regs(tsk)->ret)
#define KSTK_ESP(tsk) (task_pt_regs(tsk)->sp)
diff --git a/arch/arc/include/asm/ptrace.h b/arch/arc/include/asm/ptrace.h
index 5297faa8a378..5a8cb22724a1 100644
--- a/arch/arc/include/asm/ptrace.h
+++ b/arch/arc/include/asm/ptrace.h
@@ -19,6 +19,11 @@
#ifdef CONFIG_ISA_ARCOMPACT
struct pt_regs {
+#ifdef CONFIG_ARC_PLAT_EZNPS
+ unsigned long eflags; /* Extended FLAGS */
+ unsigned long gpa1; /* General Purpose Aux */
+#endif
+
/* Real registers */
unsigned long bta; /* bta_l1, bta_l2, erbta */
diff --git a/arch/arc/include/asm/spinlock.h b/arch/arc/include/asm/spinlock.h
index 233d5ffe6ec7..47efc8451b70 100644
--- a/arch/arc/include/asm/spinlock.h
+++ b/arch/arc/include/asm/spinlock.h
@@ -16,11 +16,6 @@
#define arch_spin_is_locked(x) ((x)->slock != __ARCH_SPIN_LOCK_UNLOCKED__)
#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- smp_cond_load_acquire(&lock->slock, !VAL);
-}
-
#ifdef CONFIG_ARC_HAS_LLSC
static inline void arch_spin_lock(arch_spinlock_t *lock)
@@ -252,9 +247,15 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
__asm__ __volatile__(
"1: ex %0, [%1] \n"
+#ifdef CONFIG_EZNPS_MTM_EXT
+ " .word %3 \n"
+#endif
" breq %0, %2, 1b \n"
: "+&r" (val)
: "r"(&(lock->slock)), "ir"(__ARCH_SPIN_LOCK_LOCKED__)
+#ifdef CONFIG_EZNPS_MTM_EXT
+ , "i"(CTOP_INST_SCHD_RW)
+#endif
: "memory");
/*
@@ -296,6 +297,12 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
*/
smp_mb();
+ /*
+ * EX is not really required here, a simple STore of 0 suffices.
+ * However this causes tasklist livelocks in SystemC based SMP virtual
+ * platforms where the systemc core scheduler uses EX as a cue for
+ * moving to next core. Do a git log of this file for details
+ */
__asm__ __volatile__(
" ex %0, [%1] \n"
: "+r" (val)
diff --git a/arch/arc/include/asm/switch_to.h b/arch/arc/include/asm/switch_to.h
index 1b171ab5fec0..f7d07feeea61 100644
--- a/arch/arc/include/asm/switch_to.h
+++ b/arch/arc/include/asm/switch_to.h
@@ -26,10 +26,19 @@ extern void fpu_save_restore(struct task_struct *p, struct task_struct *n);
#endif /* !CONFIG_ARC_FPU_SAVE_RESTORE */
+#ifdef CONFIG_ARC_PLAT_EZNPS
+extern void dp_save_restore(struct task_struct *p, struct task_struct *n);
+#define ARC_EZNPS_DP_PREV(p, n) dp_save_restore(p, n)
+#else
+#define ARC_EZNPS_DP_PREV(p, n)
+
+#endif /* !CONFIG_ARC_PLAT_EZNPS */
+
struct task_struct *__switch_to(struct task_struct *p, struct task_struct *n);
#define switch_to(prev, next, last) \
do { \
+ ARC_EZNPS_DP_PREV(prev, next); \
ARC_FPU_PREV(prev, next); \
last = __switch_to(prev, next);\
ARC_FPU_NEXT(next); \
diff --git a/arch/arc/include/uapi/asm/Kbuild b/arch/arc/include/uapi/asm/Kbuild
index b15bf6bc0e94..fa6d0ff4ff89 100644
--- a/arch/arc/include/uapi/asm/Kbuild
+++ b/arch/arc/include/uapi/asm/Kbuild
@@ -1,2 +1,28 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
+generic-y += siginfo.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
+generic-y += ucontext.h
diff --git a/arch/arc/kernel/Makefile b/arch/arc/kernel/Makefile
index 8942c5c3b4c5..2dc5f4296d44 100644
--- a/arch/arc/kernel/Makefile
+++ b/arch/arc/kernel/Makefile
@@ -12,7 +12,6 @@ obj-y := arcksyms.o setup.o irq.o reset.o ptrace.o process.o devtree.o
obj-y += signal.o traps.o sys.o troubleshoot.o stacktrace.o disasm.o
obj-$(CONFIG_ISA_ARCOMPACT) += entry-compact.o intc-compact.o
obj-$(CONFIG_ISA_ARCV2) += entry-arcv2.o intc-arcv2.o
-obj-$(CONFIG_PCI) += pcibios.o
obj-$(CONFIG_MODULES) += arcksyms.o module.o
obj-$(CONFIG_SMP) += smp.o
diff --git a/arch/arc/kernel/devtree.c b/arch/arc/kernel/devtree.c
index 3b67f538f142..521ef3521a1c 100644
--- a/arch/arc/kernel/devtree.c
+++ b/arch/arc/kernel/devtree.c
@@ -29,8 +29,9 @@ static void __init arc_set_early_base_baud(unsigned long dt_root)
{
if (of_flat_dt_is_compatible(dt_root, "abilis,arc-tb10x"))
arc_base_baud = 166666666; /* Fixed 166.6MHz clk (TB10x) */
- else if (of_flat_dt_is_compatible(dt_root, "snps,arc-sdp"))
- arc_base_baud = 33333333; /* Fixed 33MHz clk (AXS10x) */
+ else if (of_flat_dt_is_compatible(dt_root, "snps,arc-sdp") ||
+ of_flat_dt_is_compatible(dt_root, "snps,hsdk"))
+ arc_base_baud = 33333333; /* Fixed 33MHz clk (AXS10x & HSDK) */
else if (of_flat_dt_is_compatible(dt_root, "ezchip,arc-nps"))
arc_base_baud = 800000000; /* Fixed 800MHz clk (NPS) */
else
diff --git a/arch/arc/kernel/entry-compact.S b/arch/arc/kernel/entry-compact.S
index 9211707634dc..f285dbb28066 100644
--- a/arch/arc/kernel/entry-compact.S
+++ b/arch/arc/kernel/entry-compact.S
@@ -25,12 +25,12 @@
*
* vineetg: Nov 2009 (Everything needed for TIF_RESTORE_SIGMASK)
* -do_signal()invoked upon TIF_RESTORE_SIGMASK as well
- * -Wrappers for sys_{,rt_}sigsuspend() nolonger needed as they don't
+ * -Wrappers for sys_{,rt_}sigsuspend() no longer needed as they don't
* need ptregs anymore
*
* Vineetg: Oct 2009
* -In a rare scenario, Process gets a Priv-V exception and gets scheduled
- * out. Since we don't do FAKE RTIE for Priv-V, CPU excpetion state remains
+ * out. Since we don't do FAKE RTIE for Priv-V, CPU exception state remains
* active (AE bit enabled). This causes a double fault for a subseq valid
* exception. Thus FAKE RTIE needed in low level Priv-Violation handler.
* Instr Error could also cause similar scenario, so same there as well.
@@ -59,7 +59,7 @@
*/
#include <linux/errno.h>
-#include <linux/linkage.h> /* {EXTRY,EXIT} */
+#include <linux/linkage.h> /* {ENTRY,EXIT} */
#include <asm/entry.h>
#include <asm/irqflags.h>
@@ -80,8 +80,8 @@
.align 4
/* Each entry in the vector table must occupy 2 words. Since it is a jump
- * across sections (.vector to .text) we are gauranteed that 'j somewhere'
- * will use the 'j limm' form of the intrsuction as long as somewhere is in
+ * across sections (.vector to .text) we are guaranteed that 'j somewhere'
+ * will use the 'j limm' form of the instruction as long as somewhere is in
* a section other than .vector.
*/
@@ -105,13 +105,13 @@ VECTOR handle_interrupt_level1 ; Other devices
; ******************** Exceptions **********************
VECTOR EV_MachineCheck ; 0x100, Fatal Machine check (0x20)
-VECTOR EV_TLBMissI ; 0x108, Intruction TLB miss (0x21)
+VECTOR EV_TLBMissI ; 0x108, Instruction TLB miss (0x21)
VECTOR EV_TLBMissD ; 0x110, Data TLB miss (0x22)
VECTOR EV_TLBProtV ; 0x118, Protection Violation (0x23)
; or Misaligned Access
VECTOR EV_PrivilegeV ; 0x120, Privilege Violation (0x24)
VECTOR EV_Trap ; 0x128, Trap exception (0x25)
-VECTOR EV_Extension ; 0x130, Extn Intruction Excp (0x26)
+VECTOR EV_Extension ; 0x130, Extn Instruction Excp (0x26)
.rept 24
VECTOR reserved ; Reserved Exceptions
@@ -199,7 +199,7 @@ END(handle_interrupt_level2)
; ---------------------------------------------
; User Mode Memory Bus Error Interrupt Handler
-; (Kernel mode memory errors handled via seperate exception vectors)
+; (Kernel mode memory errors handled via separate exception vectors)
; ---------------------------------------------
ENTRY(mem_service)
@@ -273,7 +273,7 @@ ENTRY(EV_TLBProtV)
;------ (5) Type of Protection Violation? ----------
;
; ProtV Hardware Exception is triggered for Access Faults of 2 types
- ; -Access Violaton : 00_23_(00|01|02|03)_00
+ ; -Access Violation : 00_23_(00|01|02|03)_00
; x r w r+w
; -Unaligned Access : 00_23_04_00
;
@@ -327,7 +327,7 @@ END(call_do_page_fault)
.Lrestore_regs:
- # Interrpts are actually disabled from this point on, but will get
+ # Interrupts are actually disabled from this point on, but will get
# reenabled after we return from interrupt/exception.
# But irq tracer needs to be told now...
TRACE_ASM_IRQ_ENABLE
@@ -335,7 +335,7 @@ END(call_do_page_fault)
lr r10, [status32]
; Restore REG File. In case multiple Events outstanding,
- ; use the same priorty as rtie: EXCPN, L2 IRQ, L1 IRQ, None
+ ; use the same priority as rtie: EXCPN, L2 IRQ, L1 IRQ, None
; Note that we use realtime STATUS32 (not pt_regs->status32) to
; decide that.
diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S
index 1eea99beecc3..85d9ea4a0acc 100644
--- a/arch/arc/kernel/entry.S
+++ b/arch/arc/kernel/entry.S
@@ -92,6 +92,12 @@ ENTRY(EV_MachineCheck)
lr r0, [efa]
mov r1, sp
+ ; hardware auto-disables MMU, re-enable it to allow kernel vaddr
+ ; access for say stack unwinding of modules for crash dumps
+ lr r3, [ARC_REG_PID]
+ or r3, r3, MMU_ENABLE
+ sr r3, [ARC_REG_PID]
+
lsr r3, r2, 8
bmsk r3, r3, 7
brne r3, ECR_C_MCHK_DUP_TLB, 1f
diff --git a/arch/arc/kernel/intc-arcv2.c b/arch/arc/kernel/intc-arcv2.c
index f928795fd07a..067ea362fb3e 100644
--- a/arch/arc/kernel/intc-arcv2.c
+++ b/arch/arc/kernel/intc-arcv2.c
@@ -75,10 +75,20 @@ void arc_init_IRQ(void)
* Set a default priority for all available interrupts to prevent
* switching of register banks if Fast IRQ and multiple register banks
* are supported by CPU.
+ * Also disable private-per-core IRQ lines so faulty external HW won't
+ * trigger interrupt that kernel is not ready to handle.
*/
for (i = NR_EXCEPTIONS; i < irq_bcr.irqs + NR_EXCEPTIONS; i++) {
write_aux_reg(AUX_IRQ_SELECT, i);
write_aux_reg(AUX_IRQ_PRIORITY, ARCV2_IRQ_DEF_PRIO);
+
+ /*
+ * Only mask cpu private IRQs here.
+ * "common" interrupts are masked at IDU, otherwise it would
+ * need to be unmasked at each cpu, with IPIs
+ */
+ if (i < FIRST_EXT_IRQ)
+ write_aux_reg(AUX_IRQ_ENABLE, 0);
}
/* setup status32, don't enable intr yet as kernel doesn't want */
diff --git a/arch/arc/kernel/intc-compact.c b/arch/arc/kernel/intc-compact.c
index 7e608c6b0a01..47b421fa0147 100644
--- a/arch/arc/kernel/intc-compact.c
+++ b/arch/arc/kernel/intc-compact.c
@@ -27,7 +27,7 @@
*/
void arc_init_IRQ(void)
{
- int level_mask = 0;
+ unsigned int level_mask = 0, i;
/* Is timer high priority Interrupt (Level2 in ARCompact jargon) */
level_mask |= IS_ENABLED(CONFIG_ARC_COMPACT_IRQ_LEVELS) << TIMER0_IRQ;
@@ -40,6 +40,18 @@ void arc_init_IRQ(void)
if (level_mask)
pr_info("Level-2 interrupts bitset %x\n", level_mask);
+
+ /*
+ * Disable all IRQ lines so faulty external hardware won't
+ * trigger interrupt that kernel is not ready to handle.
+ */
+ for (i = TIMER0_IRQ; i < NR_CPU_IRQS; i++) {
+ unsigned int ienb;
+
+ ienb = read_aux_reg(AUX_IENABLE);
+ ienb &= ~(1 << i);
+ write_aux_reg(AUX_IENABLE, ienb);
+ }
}
/*
diff --git a/arch/arc/kernel/pcibios.c b/arch/arc/kernel/pcibios.c
deleted file mode 100644
index 72e1d73d0bd6..000000000000
--- a/arch/arc/kernel/pcibios.c
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright (C) 2014-2015 Synopsys, Inc. (www.synopsys.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/pci.h>
-
-/*
- * We don't have to worry about legacy ISA devices, so nothing to do here
- */
-resource_size_t pcibios_align_resource(void *data, const struct resource *res,
- resource_size_t size, resource_size_t align)
-{
- return res->start;
-}
-
-void pcibios_fixup_bus(struct pci_bus *bus)
-{
-}
diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c
index 2a018de6d6cd..5ac3b547453f 100644
--- a/arch/arc/kernel/process.c
+++ b/arch/arc/kernel/process.c
@@ -79,15 +79,40 @@ done:
return uval;
}
+#ifdef CONFIG_ISA_ARCV2
+
void arch_cpu_idle(void)
{
- /* sleep, but enable all interrupts before committing */
+ /* Re-enable interrupts <= default irq priority before commiting SLEEP */
+ const unsigned int arg = 0x10 | ARCV2_IRQ_DEF_PRIO;
+
__asm__ __volatile__(
"sleep %0 \n"
:
- :"I"(ISA_SLEEP_ARG)); /* can't be "r" has to be embedded const */
+ :"I"(arg)); /* can't be "r" has to be embedded const */
+}
+
+#elif defined(CONFIG_EZNPS_MTM_EXT) /* ARC700 variant in NPS */
+
+void arch_cpu_idle(void)
+{
+ /* only the calling HW thread needs to sleep */
+ __asm__ __volatile__(
+ ".word %0 \n"
+ :
+ :"i"(CTOP_INST_HWSCHD_WFT_IE12));
+}
+
+#else /* ARC700 */
+
+void arch_cpu_idle(void)
+{
+ /* sleep, but enable both set E1/E2 (levels of interrutps) before committing */
+ __asm__ __volatile__("sleep 0x3 \n");
}
+#endif
+
asmlinkage void ret_from_fork(void);
/*
@@ -209,6 +234,10 @@ void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long usp)
*/
regs->status32 = STATUS_U_MASK | STATUS_L_MASK | ISA_INIT_STATUS_BITS;
+#ifdef CONFIG_EZNPS_MTM_EXT
+ regs->eflags = 0;
+#endif
+
/* bogus seed values for debugging */
regs->lp_start = 0x10;
regs->lp_end = 0x80;
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index fc8211f338ad..fb83844daeea 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -51,6 +51,7 @@ static const struct id_to_str arc_cpu_rel[] = {
{ 0x51, "R2.0" },
{ 0x52, "R2.1" },
{ 0x53, "R3.0" },
+ { 0x54, "R4.0" },
#endif
{ 0x00, NULL }
};
@@ -62,6 +63,7 @@ static const struct id_to_str arc_cpu_nm[] = {
#else
{ 0x40, "ARC EM" },
{ 0x50, "ARC HS38" },
+ { 0x54, "ARC HS48" },
#endif
{ 0x00, "Unknown" }
};
@@ -119,11 +121,11 @@ static void read_arc_build_cfg_regs(void)
struct bcr_generic bcr;
struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];
const struct id_to_str *tbl;
+ struct bcr_isa_arcv2 isa;
FIX_PTR(cpu);
READ_BCR(AUX_IDENTITY, cpu->core);
- READ_BCR(ARC_REG_ISA_CFG_BCR, cpu->isa);
for (tbl = &arc_cpu_rel[0]; tbl->id != 0; tbl++) {
if (cpu->core.family == tbl->id) {
@@ -133,7 +135,7 @@ static void read_arc_build_cfg_regs(void)
}
for (tbl = &arc_cpu_nm[0]; tbl->id != 0; tbl++) {
- if ((cpu->core.family & 0xF0) == tbl->id)
+ if ((cpu->core.family & 0xF4) == tbl->id)
break;
}
cpu->name = tbl->str;
@@ -192,6 +194,14 @@ static void read_arc_build_cfg_regs(void)
cpu->bpu.full = bpu.ft;
cpu->bpu.num_cache = 256 << bpu.bce;
cpu->bpu.num_pred = 2048 << bpu.pte;
+
+ if (cpu->core.family >= 0x54) {
+ unsigned int exec_ctrl;
+
+ READ_BCR(AUX_EXEC_CTRL, exec_ctrl);
+ cpu->extn.dual_iss_exist = 1;
+ cpu->extn.dual_iss_enb = exec_ctrl & 1;
+ }
}
READ_BCR(ARC_REG_AP_BCR, bcr);
@@ -205,18 +215,25 @@ static void read_arc_build_cfg_regs(void)
cpu->extn.debug = cpu->extn.ap | cpu->extn.smart | cpu->extn.rtt;
+ READ_BCR(ARC_REG_ISA_CFG_BCR, isa);
+
/* some hacks for lack of feature BCR info in old ARC700 cores */
if (is_isa_arcompact()) {
- if (!cpu->isa.ver) /* ISA BCR absent, use Kconfig info */
+ if (!isa.ver) /* ISA BCR absent, use Kconfig info */
cpu->isa.atomic = IS_ENABLED(CONFIG_ARC_HAS_LLSC);
- else
- cpu->isa.atomic = cpu->isa.atomic1;
+ else {
+ /* ARC700_BUILD only has 2 bits of isa info */
+ struct bcr_generic bcr = *(struct bcr_generic *)&isa;
+ cpu->isa.atomic = bcr.info & 1;
+ }
cpu->isa.be = IS_ENABLED(CONFIG_CPU_BIG_ENDIAN);
/* there's no direct way to distinguish 750 vs. 770 */
if (unlikely(cpu->core.family < 0x34 || cpu->mmu.ver < 3))
cpu->name = "ARC750";
+ } else {
+ cpu->isa = isa;
}
}
@@ -232,10 +249,11 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len)
"\nIDENTITY\t: ARCVER [%#02x] ARCNUM [%#02x] CHIPID [%#4x]\n",
core->family, core->cpu_id, core->chip_id);
- n += scnprintf(buf + n, len - n, "processor [%d]\t: %s %s (%s ISA) %s\n",
+ n += scnprintf(buf + n, len - n, "processor [%d]\t: %s %s (%s ISA) %s%s%s\n",
cpu_id, cpu->name, cpu->details,
is_isa_arcompact() ? "ARCompact" : "ARCv2",
- IS_AVAIL1(cpu->isa.be, "[Big-Endian]"));
+ IS_AVAIL1(cpu->isa.be, "[Big-Endian]"),
+ IS_AVAIL3(cpu->extn.dual_iss_exist, cpu->extn.dual_iss_enb, " Dual-Issue"));
n += scnprintf(buf + n, len - n, "Timers\t\t: %s%s%s%s%s%s\nISA Extn\t: ",
IS_AVAIL1(cpu->extn.timer0, "Timer0 "),
@@ -385,13 +403,13 @@ void setup_processor(void)
read_arc_build_cfg_regs();
arc_init_IRQ();
- printk(arc_cpu_mumbojumbo(cpu_id, str, sizeof(str)));
+ pr_info("%s", arc_cpu_mumbojumbo(cpu_id, str, sizeof(str)));
arc_mmu_init();
arc_cache_init();
- printk(arc_extn_mumbojumbo(cpu_id, str, sizeof(str)));
- printk(arc_platform_smp_cpuinfo());
+ pr_info("%s", arc_extn_mumbojumbo(cpu_id, str, sizeof(str)));
+ pr_info("%s", arc_platform_smp_cpuinfo());
arc_chk_core_config();
}
@@ -470,7 +488,7 @@ void __init setup_arch(char **cmdline_p)
void __init time_init(void)
{
of_clk_init(NULL);
- clocksource_probe();
+ timer_probe();
}
static int __init customize_machine(void)
@@ -510,7 +528,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
goto done;
}
- str = (char *)__get_free_page(GFP_TEMPORARY);
+ str = (char *)__get_free_page(GFP_KERNEL);
if (!str)
goto done;
diff --git a/arch/arc/kernel/traps.c b/arch/arc/kernel/traps.c
index ff83e78d0cfb..bcd7c9fc5d0f 100644
--- a/arch/arc/kernel/traps.c
+++ b/arch/arc/kernel/traps.c
@@ -80,7 +80,7 @@ int name(unsigned long address, struct pt_regs *regs) \
DO_ERROR_INFO(SIGILL, "Priv Op/Disabled Extn", do_privilege_fault, ILL_PRVOPC)
DO_ERROR_INFO(SIGILL, "Invalid Extn Insn", do_extension_fault, ILL_ILLOPC)
DO_ERROR_INFO(SIGILL, "Illegal Insn (or Seq)", insterror_is_error, ILL_ILLOPC)
-DO_ERROR_INFO(SIGBUS, "Invalid Mem Access", do_memory_error, BUS_ADRERR)
+DO_ERROR_INFO(SIGBUS, "Invalid Mem Access", __weak do_memory_error, BUS_ADRERR)
DO_ERROR_INFO(SIGTRAP, "Breakpoint Set", trap_is_brkpt, TRAP_BRKPT)
DO_ERROR_INFO(SIGBUS, "Misaligned Access", do_misaligned_error, BUS_ADRALN)
@@ -103,7 +103,7 @@ int do_misaligned_access(unsigned long address, struct pt_regs *regs,
*/
void do_machine_check_fault(unsigned long address, struct pt_regs *regs)
{
- die("Machine Check Exception", regs, address);
+ die("Unhandled Machine Check Exception", regs, address);
}
diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c
index f9caf79186d4..7d8c1d6c2f60 100644
--- a/arch/arc/kernel/troubleshoot.c
+++ b/arch/arc/kernel/troubleshoot.c
@@ -140,7 +140,7 @@ static void show_ecr_verbose(struct pt_regs *regs)
} else if (vec == ECR_V_ITLB_MISS) {
pr_cont("Insn could not be fetched\n");
} else if (vec == ECR_V_MACH_CHK) {
- pr_cont("%s\n", (cause_code == 0x0) ?
+ pr_cont("Machine Check (%s)\n", (cause_code == 0x0) ?
"Double Fault" : "Other Fatal Err");
} else if (vec == ECR_V_PROTV) {
@@ -178,7 +178,7 @@ void show_regs(struct pt_regs *regs)
struct callee_regs *cregs;
char *buf;
- buf = (char *)__get_free_page(GFP_TEMPORARY);
+ buf = (char *)__get_free_page(GFP_KERNEL);
if (!buf)
return;
@@ -233,6 +233,9 @@ void show_kernel_fault_diag(const char *str, struct pt_regs *regs,
{
current->thread.fault_address = address;
+ /* Show fault description */
+ pr_info("\n%s\n", str);
+
/* Caller and Callee regs */
show_regs(regs);
diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c
index a867575a758b..eee924dfffa6 100644
--- a/arch/arc/mm/cache.c
+++ b/arch/arc/mm/cache.c
@@ -652,7 +652,7 @@ static void __ic_line_inv_vaddr(phys_addr_t paddr, unsigned long vaddr,
#endif /* CONFIG_ARC_HAS_ICACHE */
-noinline void slc_op(phys_addr_t paddr, unsigned long sz, const int op)
+noinline void slc_op_rgn(phys_addr_t paddr, unsigned long sz, const int op)
{
#ifdef CONFIG_ISA_ARCV2
/*
@@ -665,6 +665,7 @@ noinline void slc_op(phys_addr_t paddr, unsigned long sz, const int op)
static DEFINE_SPINLOCK(lock);
unsigned long flags;
unsigned int ctrl;
+ phys_addr_t end;
spin_lock_irqsave(&lock, flags);
@@ -694,8 +695,19 @@ noinline void slc_op(phys_addr_t paddr, unsigned long sz, const int op)
* END needs to be setup before START (latter triggers the operation)
* END can't be same as START, so add (l2_line_sz - 1) to sz
*/
- write_aux_reg(ARC_REG_SLC_RGN_END, (paddr + sz + l2_line_sz - 1));
- write_aux_reg(ARC_REG_SLC_RGN_START, paddr);
+ end = paddr + sz + l2_line_sz - 1;
+ if (is_pae40_enabled())
+ write_aux_reg(ARC_REG_SLC_RGN_END1, upper_32_bits(end));
+
+ write_aux_reg(ARC_REG_SLC_RGN_END, lower_32_bits(end));
+
+ if (is_pae40_enabled())
+ write_aux_reg(ARC_REG_SLC_RGN_START1, upper_32_bits(paddr));
+
+ write_aux_reg(ARC_REG_SLC_RGN_START, lower_32_bits(paddr));
+
+ /* Make sure "busy" bit reports correct stataus, see STAR 9001165532 */
+ read_aux_reg(ARC_REG_SLC_CTRL);
while (read_aux_reg(ARC_REG_SLC_CTRL) & SLC_CTRL_BUSY);
@@ -703,6 +715,58 @@ noinline void slc_op(phys_addr_t paddr, unsigned long sz, const int op)
#endif
}
+noinline void slc_op_line(phys_addr_t paddr, unsigned long sz, const int op)
+{
+#ifdef CONFIG_ISA_ARCV2
+ /*
+ * SLC is shared between all cores and concurrent aux operations from
+ * multiple cores need to be serialized using a spinlock
+ * A concurrent operation can be silently ignored and/or the old/new
+ * operation can remain incomplete forever (lockup in SLC_CTRL_BUSY loop
+ * below)
+ */
+ static DEFINE_SPINLOCK(lock);
+
+ const unsigned long SLC_LINE_MASK = ~(l2_line_sz - 1);
+ unsigned int ctrl, cmd;
+ unsigned long flags;
+ int num_lines;
+
+ spin_lock_irqsave(&lock, flags);
+
+ ctrl = read_aux_reg(ARC_REG_SLC_CTRL);
+
+ /* Don't rely on default value of IM bit */
+ if (!(op & OP_FLUSH)) /* i.e. OP_INV */
+ ctrl &= ~SLC_CTRL_IM; /* clear IM: Disable flush before Inv */
+ else
+ ctrl |= SLC_CTRL_IM;
+
+ write_aux_reg(ARC_REG_SLC_CTRL, ctrl);
+
+ cmd = op & OP_INV ? ARC_AUX_SLC_IVDL : ARC_AUX_SLC_FLDL;
+
+ sz += paddr & ~SLC_LINE_MASK;
+ paddr &= SLC_LINE_MASK;
+
+ num_lines = DIV_ROUND_UP(sz, l2_line_sz);
+
+ while (num_lines-- > 0) {
+ write_aux_reg(cmd, paddr);
+ paddr += l2_line_sz;
+ }
+
+ /* Make sure "busy" bit reports correct stataus, see STAR 9001165532 */
+ read_aux_reg(ARC_REG_SLC_CTRL);
+
+ while (read_aux_reg(ARC_REG_SLC_CTRL) & SLC_CTRL_BUSY);
+
+ spin_unlock_irqrestore(&lock, flags);
+#endif
+}
+
+#define slc_op(paddr, sz, op) slc_op_rgn(paddr, sz, op)
+
noinline static void slc_entire_op(const int op)
{
unsigned int ctrl, r = ARC_REG_SLC_CTRL;
@@ -1083,7 +1147,7 @@ SYSCALL_DEFINE3(cacheflush, uint32_t, start, uint32_t, sz, uint32_t, flags)
*/
noinline void __init arc_ioc_setup(void)
{
- unsigned int ap_sz;
+ unsigned int ioc_base, mem_sz;
/* Flush + invalidate + disable L1 dcache */
__dc_disable();
@@ -1092,18 +1156,29 @@ noinline void __init arc_ioc_setup(void)
if (read_aux_reg(ARC_REG_SLC_BCR))
slc_entire_op(OP_FLUSH_N_INV);
- /* IOC Aperture start: TDB: handle non default CONFIG_LINUX_LINK_BASE */
- write_aux_reg(ARC_REG_IO_COH_AP0_BASE, 0x80000);
-
/*
- * IOC Aperture size:
- * decoded as 2 ^ (SIZE + 2) KB: so setting 0x11 implies 512M
+ * currently IOC Aperture covers entire DDR
* TBD: fix for PGU + 1GB of low mem
* TBD: fix for PAE
*/
- ap_sz = order_base_2(arc_get_mem_sz()/1024) - 2;
- write_aux_reg(ARC_REG_IO_COH_AP0_SIZE, ap_sz);
+ mem_sz = arc_get_mem_sz();
+
+ if (!is_power_of_2(mem_sz) || mem_sz < 4096)
+ panic("IOC Aperture size must be power of 2 larger than 4KB");
+
+ /*
+ * IOC Aperture size decoded as 2 ^ (SIZE + 2) KB,
+ * so setting 0x11 implies 512MB, 0x12 implies 1GB...
+ */
+ write_aux_reg(ARC_REG_IO_COH_AP0_SIZE, order_base_2(mem_sz >> 10) - 2);
+
+ /* for now assume kernel base is start of IOC aperture */
+ ioc_base = CONFIG_LINUX_RAM_BASE;
+
+ if (ioc_base % mem_sz != 0)
+ panic("IOC Aperture start must be aligned to the size of the aperture");
+ write_aux_reg(ARC_REG_IO_COH_AP0_BASE, ioc_base >> 12);
write_aux_reg(ARC_REG_IO_COH_PARTIAL, 1);
write_aux_reg(ARC_REG_IO_COH_ENABLE, 1);
@@ -1111,6 +1186,13 @@ noinline void __init arc_ioc_setup(void)
__dc_enable();
}
+/*
+ * Cache related boot time checks/setups only needed on master CPU:
+ * - Geometry checks (kernel build and hardware agree: e.g. L1_CACHE_BYTES)
+ * Assume SMP only, so all cores will have same cache config. A check on
+ * one core suffices for all
+ * - IOC setup / dma callbacks only need to be done once
+ */
void __init arc_cache_init_master(void)
{
unsigned int __maybe_unused cpu = smp_processor_id();
@@ -1188,14 +1270,29 @@ void __ref arc_cache_init(void)
unsigned int __maybe_unused cpu = smp_processor_id();
char str[256];
- printk(arc_cache_mumbojumbo(0, str, sizeof(str)));
+ pr_info("%s", arc_cache_mumbojumbo(0, str, sizeof(str)));
- /*
- * Only master CPU needs to execute rest of function:
- * - Assume SMP so all cores will have same cache config so
- * any geomtry checks will be same for all
- * - IOC setup / dma callbacks only need to be setup once
- */
if (!cpu)
arc_cache_init_master();
+
+ /*
+ * In PAE regime, TLB and cache maintenance ops take wider addresses
+ * And even if PAE is not enabled in kernel, the upper 32-bits still need
+ * to be zeroed to keep the ops sane.
+ * As an optimization for more common !PAE enabled case, zero them out
+ * once at init, rather than checking/setting to 0 for every runtime op
+ */
+ if (is_isa_arcv2() && pae40_exist_but_not_enab()) {
+
+ if (IS_ENABLED(CONFIG_ARC_HAS_ICACHE))
+ write_aux_reg(ARC_REG_IC_PTAG_HI, 0);
+
+ if (IS_ENABLED(CONFIG_ARC_HAS_DCACHE))
+ write_aux_reg(ARC_REG_DC_PTAG_HI, 0);
+
+ if (l2_line_sz) {
+ write_aux_reg(ARC_REG_SLC_RGN_END1, 0);
+ write_aux_reg(ARC_REG_SLC_RGN_START1, 0);
+ }
+ }
}
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index 2a07e6ecafbd..e9d93604ad0f 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -117,7 +117,7 @@ static int arc_dma_mmap(struct device *dev, struct vm_area_struct *vma,
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
- if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
+ if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
return ret;
if (off < count && user_count <= (count - off)) {
@@ -153,6 +153,19 @@ static void _dma_cache_sync(phys_addr_t paddr, size_t size,
}
}
+/*
+ * arc_dma_map_page - map a portion of a page for streaming DMA
+ *
+ * Ensure that any data held in the cache is appropriately discarded
+ * or written back.
+ *
+ * The device owns this memory once this call has completed. The CPU
+ * can regain ownership by calling dma_unmap_page().
+ *
+ * Note: while it takes struct page as arg, caller can "abuse" it to pass
+ * a region larger than PAGE_SIZE, provided it is physically contiguous
+ * and this still works correctly
+ */
static dma_addr_t arc_dma_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size, enum dma_data_direction dir,
unsigned long attrs)
@@ -165,6 +178,24 @@ static dma_addr_t arc_dma_map_page(struct device *dev, struct page *page,
return plat_phys_to_dma(dev, paddr);
}
+/*
+ * arc_dma_unmap_page - unmap a buffer previously mapped through dma_map_page()
+ *
+ * After this call, reads by the CPU to the buffer are guaranteed to see
+ * whatever the device wrote there.
+ *
+ * Note: historically this routine was not implemented for ARC
+ */
+static void arc_dma_unmap_page(struct device *dev, dma_addr_t handle,
+ size_t size, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ phys_addr_t paddr = plat_dma_to_phys(dev, handle);
+
+ if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+ _dma_cache_sync(paddr, size, dir);
+}
+
static int arc_dma_map_sg(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction dir, unsigned long attrs)
{
@@ -178,6 +209,18 @@ static int arc_dma_map_sg(struct device *dev, struct scatterlist *sg,
return nents;
}
+static void arc_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+ int nents, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ struct scatterlist *s;
+ int i;
+
+ for_each_sg(sg, s, nents, i)
+ arc_dma_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir,
+ attrs);
+}
+
static void arc_dma_sync_single_for_cpu(struct device *dev,
dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)
{
@@ -223,7 +266,9 @@ const struct dma_map_ops arc_dma_ops = {
.free = arc_dma_free,
.mmap = arc_dma_mmap,
.map_page = arc_dma_map_page,
+ .unmap_page = arc_dma_unmap_page,
.map_sg = arc_dma_map_sg,
+ .unmap_sg = arc_dma_unmap_sg,
.sync_single_for_device = arc_dma_sync_single_for_device,
.sync_single_for_cpu = arc_dma_sync_single_for_cpu,
.sync_sg_for_cpu = arc_dma_sync_sg_for_cpu,
diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c
index 162c97528872..a0b7bd6d030d 100644
--- a/arch/arc/mm/fault.c
+++ b/arch/arc/mm/fault.c
@@ -207,7 +207,7 @@ no_context:
/* Are we prepared to handle this kernel fault?
*
* (The kernel has valid exception-points in the source
- * when it acesses user-memory. When it fails in one
+ * when it accesses user-memory. When it fails in one
* of those points, we find it in a table and do a jump
* to some fixup code that loads an appropriate error
* code)
diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c
index 8c9415ed6280..ba145065c579 100644
--- a/arch/arc/mm/init.c
+++ b/arch/arc/mm/init.c
@@ -26,7 +26,7 @@ pgd_t swapper_pg_dir[PTRS_PER_PGD] __aligned(PAGE_SIZE);
char empty_zero_page[PAGE_SIZE] __aligned(PAGE_SIZE);
EXPORT_SYMBOL(empty_zero_page);
-static const unsigned long low_mem_start = CONFIG_LINUX_LINK_BASE;
+static const unsigned long low_mem_start = CONFIG_LINUX_RAM_BASE;
static unsigned long low_mem_sz;
#ifdef CONFIG_HIGHMEM
@@ -63,7 +63,7 @@ void __init early_init_dt_add_memory_arch(u64 base, u64 size)
if (!low_mem_sz) {
if (base != low_mem_start)
- panic("CONFIG_LINUX_LINK_BASE != DT memory { }");
+ panic("CONFIG_LINUX_RAM_BASE != DT memory { }");
low_mem_sz = size;
in_use = 1;
@@ -161,7 +161,7 @@ void __init setup_arch_memory(void)
* We can't use the helper free_area_init(zones[]) because it uses
* PAGE_OFFSET to compute the @min_low_pfn which would be wrong
* when our kernel doesn't start at PAGE_OFFSET, i.e.
- * PAGE_OFFSET != CONFIG_LINUX_LINK_BASE
+ * PAGE_OFFSET != CONFIG_LINUX_RAM_BASE
*/
free_area_init_node(0, /* node-id */
zones_size, /* num pages per zone */
diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index d0126fdfe2d8..8ceefbf72fb0 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c
@@ -104,6 +104,8 @@
/* A copy of the ASID from the PID reg is kept in asid_cache */
DEFINE_PER_CPU(unsigned int, asid_cache) = MM_CTXT_FIRST_CYCLE;
+static int __read_mostly pae_exists;
+
/*
* Utility Routine to erase a J-TLB entry
* Caller needs to setup Index Reg (manually or via getIndex)
@@ -784,7 +786,7 @@ void read_decode_mmu_bcr(void)
mmu->u_dtlb = mmu4->u_dtlb * 4;
mmu->u_itlb = mmu4->u_itlb * 4;
mmu->sasid = mmu4->sasid;
- mmu->pae = mmu4->pae;
+ pae_exists = mmu->pae = mmu4->pae;
}
}
@@ -809,12 +811,17 @@ char *arc_mmu_mumbojumbo(int cpu_id, char *buf, int len)
return buf;
}
+int pae40_exist_but_not_enab(void)
+{
+ return pae_exists && !is_pae40_enabled();
+}
+
void arc_mmu_init(void)
{
char str[256];
struct cpuinfo_arc_mmu *mmu = &cpuinfo_arc700[smp_processor_id()].mmu;
- printk(arc_mmu_mumbojumbo(0, str, sizeof(str)));
+ pr_info("%s", arc_mmu_mumbojumbo(0, str, sizeof(str)));
/*
* Can't be done in processor.h due to header include depenedencies
@@ -859,6 +866,9 @@ void arc_mmu_init(void)
/* swapper_pg_dir is the pgd for the kernel, used by vmalloc */
write_aux_reg(ARC_REG_SCRATCH_DATA0, swapper_pg_dir);
#endif
+
+ if (pae40_exist_but_not_enab())
+ write_aux_reg(ARC_REG_TLBPD1HI, 0);
}
/*
@@ -898,9 +908,6 @@ void do_tlb_overlap_fault(unsigned long cause, unsigned long address,
local_irq_save(flags);
- /* re-enable the MMU */
- write_aux_reg(ARC_REG_PID, MMU_ENABLE | read_aux_reg(ARC_REG_PID));
-
/* loop thru all sets of TLB */
for (set = 0; set < mmu->sets; set++) {
diff --git a/arch/arc/mm/tlbex.S b/arch/arc/mm/tlbex.S
index b30e4e36bb00..0e1e47a67c73 100644
--- a/arch/arc/mm/tlbex.S
+++ b/arch/arc/mm/tlbex.S
@@ -274,6 +274,13 @@ ex_saved_reg1:
.macro COMMIT_ENTRY_TO_MMU
#if (CONFIG_ARC_MMU_VER < 4)
+#ifdef CONFIG_EZNPS_MTM_EXT
+ /* verify if entry for this vaddr+ASID already exists */
+ sr TLBProbe, [ARC_REG_TLBCOMMAND]
+ lr r0, [ARC_REG_TLBINDEX]
+ bbit0 r0, 31, 88f
+#endif
+
/* Get free TLB slot: Set = computed from vaddr, way = random */
sr TLBGetIndex, [ARC_REG_TLBCOMMAND]
@@ -287,6 +294,8 @@ ex_saved_reg1:
#else
sr TLBInsertEntry, [ARC_REG_TLBCOMMAND]
#endif
+
+88:
.endm
diff --git a/arch/arc/plat-axs10x/axs10x.c b/arch/arc/plat-axs10x/axs10x.c
index 38ff349d7f2a..cf14ebc36916 100644
--- a/arch/arc/plat-axs10x/axs10x.c
+++ b/arch/arc/plat-axs10x/axs10x.c
@@ -80,22 +80,6 @@ static void __init axs10x_enable_gpio_intc_wire(void)
iowrite32(1 << MB_TO_GPIO_IRQ, (void __iomem *) GPIO_INTEN);
}
-static inline void __init
-write_cgu_reg(uint32_t value, void __iomem *reg, void __iomem *lock_reg)
-{
- unsigned int loops = 128 * 1024, ctr;
-
- iowrite32(value, reg);
-
- ctr = loops;
- while (((ioread32(lock_reg) & 1) == 1) && ctr--) /* wait for unlock */
- cpu_relax();
-
- ctr = loops;
- while (((ioread32(lock_reg) & 1) == 0) && ctr--) /* wait for re-lock */
- cpu_relax();
-}
-
static void __init axs10x_print_board_ver(unsigned int creg, const char *str)
{
union ver {
@@ -127,6 +111,13 @@ static void __init axs10x_early_init(void)
axs10x_enable_gpio_intc_wire();
+ /*
+ * Reset ethernet IP core.
+ * TODO: get rid of this quirk after axs10x reset driver (or simple
+ * reset driver) will be available in upstream.
+ */
+ iowrite32((1 << 5), (void __iomem *) CREG_MB_SW_RESET);
+
scnprintf(mb, 32, "MainBoard v%d", mb_rev);
axs10x_print_board_ver(CREG_MB_VER, mb);
}
@@ -314,7 +305,6 @@ static void __init axs101_early_init(void)
#ifdef CONFIG_AXS103
-#define AXC003_CGU 0xF0000000
#define AXC003_CREG 0xF0001000
#define AXC003_MST_AXI_TUNNEL 0
#define AXC003_MST_HS38 1
@@ -324,131 +314,38 @@ static void __init axs101_early_init(void)
#define CREG_CPU_TUN_IO_CTRL (AXC003_CREG + 0x494)
-union pll_reg {
- struct {
-#ifdef CONFIG_CPU_BIG_ENDIAN
- unsigned int pad:17, noupd:1, bypass:1, edge:1, high:6, low:6;
-#else
- unsigned int low:6, high:6, edge:1, bypass:1, noupd:1, pad:17;
-#endif
- };
- unsigned int val;
-};
-
-static unsigned int __init axs103_get_freq(void)
-{
- union pll_reg idiv, fbdiv, odiv;
- unsigned int f = 33333333;
-
- idiv.val = ioread32((void __iomem *)AXC003_CGU + 0x80 + 0);
- fbdiv.val = ioread32((void __iomem *)AXC003_CGU + 0x80 + 4);
- odiv.val = ioread32((void __iomem *)AXC003_CGU + 0x80 + 8);
-
- if (idiv.bypass != 1)
- f = f / (idiv.low + idiv.high);
-
- if (fbdiv.bypass != 1)
- f = f * (fbdiv.low + fbdiv.high);
-
- if (odiv.bypass != 1)
- f = f / (odiv.low + odiv.high);
-
- f = (f + 500000) / 1000000; /* Rounding */
- return f;
-}
-
-static inline unsigned int __init encode_div(unsigned int id, int upd)
-{
- union pll_reg div;
-
- div.val = 0;
-
- div.noupd = !upd;
- div.bypass = id == 1 ? 1 : 0;
- div.edge = (id%2 == 0) ? 0 : 1; /* 0 = rising */
- div.low = (id%2 == 0) ? id >> 1 : (id >> 1)+1;
- div.high = id >> 1;
-
- return div.val;
-}
-
-noinline static void __init
-axs103_set_freq(unsigned int id, unsigned int fd, unsigned int od)
-{
- write_cgu_reg(encode_div(id, 0),
- (void __iomem *)AXC003_CGU + 0x80 + 0,
- (void __iomem *)AXC003_CGU + 0x110);
-
- write_cgu_reg(encode_div(fd, 0),
- (void __iomem *)AXC003_CGU + 0x80 + 4,
- (void __iomem *)AXC003_CGU + 0x110);
-
- write_cgu_reg(encode_div(od, 1),
- (void __iomem *)AXC003_CGU + 0x80 + 8,
- (void __iomem *)AXC003_CGU + 0x110);
-}
-
static void __init axs103_early_init(void)
{
- int offset = fdt_path_offset(initial_boot_params, "/cpu_card/core_clk");
- const struct fdt_property *prop = fdt_get_property(initial_boot_params,
- offset,
- "clock-frequency",
- NULL);
- u32 freq = be32_to_cpu(*(u32*)(prop->data)) / 1000000, orig = freq;
-
+#ifdef CONFIG_ARC_MCIP
/*
* AXS103 configurations for SMP/QUAD configurations share device tree
- * which defaults to 90 MHz. However recent failures of Quad config
+ * which defaults to 100 MHz. However recent failures of Quad config
* revealed P&R timing violations so clamp it down to safe 50 MHz
* Instead of duplicating defconfig/DT for SMP/QUAD, add a small hack
- *
- * This hack is really hacky as of now. Fix it properly by getting the
- * number of cores as return value of platform's early SMP callback
+ * of fudging the freq in DT
*/
-#ifdef CONFIG_ARC_MCIP
unsigned int num_cores = (read_aux_reg(ARC_REG_MCIP_BCR) >> 16) & 0x3F;
- if (num_cores > 2)
- freq = 50;
-#endif
-
- switch (freq) {
- case 33:
- axs103_set_freq(1, 1, 1);
- break;
- case 50:
- axs103_set_freq(1, 30, 20);
- break;
- case 75:
- axs103_set_freq(2, 45, 10);
- break;
- case 90:
- axs103_set_freq(2, 54, 10);
- break;
- case 100:
- axs103_set_freq(1, 30, 10);
- break;
- case 125:
- axs103_set_freq(2, 45, 6);
- break;
- default:
+ if (num_cores > 2) {
+ u32 freq = 50, orig;
/*
- * In this case, core_frequency derived from
- * DT "clock-frequency" might not match with board value.
- * Hence update it to match the board value.
+ * TODO: use cpu node "cpu-freq" param instead of platform-specific
+ * "/cpu_card/core_clk" as it works only if we use fixed-clock for cpu.
*/
- freq = axs103_get_freq();
- break;
- }
-
- pr_info("Freq is %dMHz\n", freq);
-
- /* Patching .dtb in-place with new core clock value */
- if (freq != orig ) {
- freq = cpu_to_be32(freq * 1000000);
- fdt_setprop_inplace(initial_boot_params, offset,
- "clock-frequency", &freq, sizeof(freq));
+ int off = fdt_path_offset(initial_boot_params, "/cpu_card/core_clk");
+ const struct fdt_property *prop;
+
+ prop = fdt_get_property(initial_boot_params, off,
+ "clock-frequency", NULL);
+ orig = be32_to_cpu(*(u32*)(prop->data)) / 1000000;
+
+ /* Patching .dtb in-place with new core clock value */
+ if (freq != orig ) {
+ freq = cpu_to_be32(freq * 1000000);
+ fdt_setprop_inplace(initial_boot_params, off,
+ "clock-frequency", &freq, sizeof(freq));
+ }
}
+#endif
/* Memory maps already config in pre-bootloader */
diff --git a/arch/arc/plat-eznps/Kconfig b/arch/arc/plat-eznps/Kconfig
index 1595a38e50cd..e151e2067886 100644
--- a/arch/arc/plat-eznps/Kconfig
+++ b/arch/arc/plat-eznps/Kconfig
@@ -12,8 +12,8 @@ menuconfig ARC_PLAT_EZNPS
help
Support for EZchip development platforms,
based on ARC700 cores.
- We handle few flavours:
- - Hardware Emulator AKA HE which is FPGA based chasis
+ We handle few flavors:
+ - Hardware Emulator AKA HE which is FPGA based chassis
- Simulator based on MetaWare nSIM
- NPS400 chip based on ASIC
@@ -32,3 +32,25 @@ config EZNPS_MTM_EXT
any of them seem like CPU from Linux point of view.
All threads within same core share the execution unit of the
core and HW scheduler round robin between them.
+
+config EZNPS_MEM_ERROR_ALIGN
+ bool "ARC-EZchip Memory error as an exception"
+ depends on EZNPS_MTM_EXT
+ default n
+ help
+ On the real chip of the NPS, user memory errors are handled
+ as a machine check exception, which is fatal, whereas on
+ simulator platform for NPS, is handled as a Level 2 interrupt
+ (just a stock ARC700) which is recoverable. This option makes
+ simulator behave like hardware.
+
+config EZNPS_SHARED_AUX_REGS
+ bool "ARC-EZchip Shared Auxiliary Registers Per Core"
+ depends on ARC_PLAT_EZNPS
+ default y
+ help
+ On the real chip of the NPS, auxiliary registers are shared between
+ all the cpus of the core, whereas on simulator platform for NPS,
+ each cpu has a different set of auxiliary registers. Configuration
+ should be unset if auxiliary registers are not shared between the cpus
+ of the core, so there will be a need to initialize them per cpu.
diff --git a/arch/arc/plat-eznps/Makefile b/arch/arc/plat-eznps/Makefile
index 21091b199df0..8d4371706b2f 100644
--- a/arch/arc/plat-eznps/Makefile
+++ b/arch/arc/plat-eznps/Makefile
@@ -2,6 +2,6 @@
# Makefile for the linux kernel.
#
-obj-y := entry.o platform.o
+obj-y := entry.o platform.o ctop.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_EZNPS_MTM_EXT) += mtm.o
diff --git a/arch/arc/plat-eznps/ctop.c b/arch/arc/plat-eznps/ctop.c
new file mode 100644
index 000000000000..030bcd070a1b
--- /dev/null
+++ b/arch/arc/plat-eznps/ctop.c
@@ -0,0 +1,32 @@
+/*
+ * Copyright(c) 2015 EZchip Technologies.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ */
+
+#include <linux/sched.h>
+#include <asm/processor.h>
+#include <plat/ctop.h>
+
+void dp_save_restore(struct task_struct *prev, struct task_struct *next)
+{
+ struct eznps_dp *prev_task_dp = &prev->thread.dp;
+ struct eznps_dp *next_task_dp = &next->thread.dp;
+
+ /* Here we save all Data Plane related auxiliary registers */
+ prev_task_dp->eflags = read_aux_reg(CTOP_AUX_EFLAGS);
+ write_aux_reg(CTOP_AUX_EFLAGS, next_task_dp->eflags);
+
+ prev_task_dp->gpa1 = read_aux_reg(CTOP_AUX_GPA1);
+ write_aux_reg(CTOP_AUX_GPA1, next_task_dp->gpa1);
+}
diff --git a/arch/arc/plat-eznps/entry.S b/arch/arc/plat-eznps/entry.S
index 328261c27cda..091c92c32ab6 100644
--- a/arch/arc/plat-eznps/entry.S
+++ b/arch/arc/plat-eznps/entry.S
@@ -27,7 +27,7 @@
.align 1024 ; HW requierment for restart first PC
ENTRY(res_service)
-#ifdef CONFIG_EZNPS_MTM_EXT
+#if defined(CONFIG_EZNPS_MTM_EXT) && defined(CONFIG_EZNPS_SHARED_AUX_REGS)
; There is no work for HW thread id != 0
lr r3, [CTOP_AUX_THREAD_ID]
cmp r3, 0
diff --git a/arch/arc/plat-eznps/include/plat/ctop.h b/arch/arc/plat-eznps/include/plat/ctop.h
index ee2e32df5e90..0c7d11022d0f 100644
--- a/arch/arc/plat-eznps/include/plat/ctop.h
+++ b/arch/arc/plat-eznps/include/plat/ctop.h
@@ -39,6 +39,7 @@
#define CTOP_AUX_LOGIC_CORE_ID (CTOP_AUX_BASE + 0x018)
#define CTOP_AUX_MT_CTRL (CTOP_AUX_BASE + 0x020)
#define CTOP_AUX_HW_COMPLY (CTOP_AUX_BASE + 0x024)
+#define CTOP_AUX_DPC (CTOP_AUX_BASE + 0x02C)
#define CTOP_AUX_LPC (CTOP_AUX_BASE + 0x030)
#define CTOP_AUX_EFLAGS (CTOP_AUX_BASE + 0x080)
#define CTOP_AUX_IACK (CTOP_AUX_BASE + 0x088)
@@ -46,6 +47,7 @@
#define CTOP_AUX_UDMC (CTOP_AUX_BASE + 0x300)
/* EZchip core instructions */
+#define CTOP_INST_HWSCHD_WFT_IE12 0x3E6F7344
#define CTOP_INST_HWSCHD_OFF_R4 0x3C6F00BF
#define CTOP_INST_HWSCHD_RESTORE_R4 0x3E6F7103
#define CTOP_INST_SCHD_RW 0x3E6F7004
diff --git a/arch/arc/plat-eznps/mtm.c b/arch/arc/plat-eznps/mtm.c
index aaaaffd3d940..2388de3d09ef 100644
--- a/arch/arc/plat-eznps/mtm.c
+++ b/arch/arc/plat-eznps/mtm.c
@@ -21,10 +21,22 @@
#include <plat/mtm.h>
#include <plat/smp.h>
-#define MT_CTRL_HS_CNT 0xFF
+#define MT_HS_CNT_MIN 0x01
+#define MT_HS_CNT_MAX 0xFF
#define MT_CTRL_ST_CNT 0xF
#define NPS_NUM_HW_THREADS 0x10
+static int mtm_hs_ctr = MT_HS_CNT_MAX;
+
+#ifdef CONFIG_EZNPS_MEM_ERROR_ALIGN
+int do_memory_error(unsigned long address, struct pt_regs *regs)
+{
+ die("Invalid Mem Access", regs, address);
+
+ return 1;
+}
+#endif
+
static void mtm_init_nat(int cpu)
{
struct nps_host_reg_mtm_cfg mtm_cfg;
@@ -98,6 +110,18 @@ void mtm_enable_core(unsigned int cpu)
int i;
struct nps_host_reg_aux_mt_ctrl mt_ctrl;
struct nps_host_reg_mtm_cfg mtm_cfg;
+ struct nps_host_reg_aux_dpc dpc;
+
+ /*
+ * Initializing dpc register in each CPU.
+ * Overwriting the init value of the DPC
+ * register so that CMEM and FMT virtual address
+ * spaces are accessible, and Data Plane HW
+ * facilities are enabled.
+ */
+ dpc.ien = 1;
+ dpc.men = 1;
+ write_aux_reg(CTOP_AUX_DPC, dpc.value);
if (NPS_CPU_TO_THREAD_NUM(cpu) != 0)
return;
@@ -118,9 +142,7 @@ void mtm_enable_core(unsigned int cpu)
/* Enable HW schedule, stall counter, mtm */
mt_ctrl.value = 0;
mt_ctrl.hsen = 1;
- mt_ctrl.hs_cnt = MT_CTRL_HS_CNT;
- mt_ctrl.sten = 1;
- mt_ctrl.st_cnt = MT_CTRL_ST_CNT;
+ mt_ctrl.hs_cnt = mtm_hs_ctr;
mt_ctrl.mten = 1;
write_aux_reg(CTOP_AUX_MT_CTRL, mt_ctrl.value);
@@ -131,3 +153,23 @@ void mtm_enable_core(unsigned int cpu)
*/
cpu_relax();
}
+
+/* Verify and set the value of the mtm hs counter */
+static int __init set_mtm_hs_ctr(char *ctr_str)
+{
+ long hs_ctr;
+ int ret;
+
+ ret = kstrtol(ctr_str, 0, &hs_ctr);
+
+ if (ret || hs_ctr > MT_HS_CNT_MAX || hs_ctr < MT_HS_CNT_MIN) {
+ pr_err("** Invalid @nps_mtm_hs_ctr [%d] needs to be [%d:%d] (incl)\n",
+ hs_ctr, MT_HS_CNT_MIN, MT_HS_CNT_MAX);
+ return -EINVAL;
+ }
+
+ mtm_hs_ctr = hs_ctr;
+
+ return 0;
+}
+early_param("nps_mtm_hs_ctr", set_mtm_hs_ctr);
diff --git a/arch/arc/plat-hsdk/Kconfig b/arch/arc/plat-hsdk/Kconfig
new file mode 100644
index 000000000000..bd08de4be75e
--- /dev/null
+++ b/arch/arc/plat-hsdk/Kconfig
@@ -0,0 +1,10 @@
+# Copyright (C) 2017 Synopsys, Inc. (www.synopsys.com)
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+
+menuconfig ARC_SOC_HSDK
+ bool "ARC HS Development Kit SOC"
+ select CLK_HSDK
diff --git a/arch/arc/plat-hsdk/Makefile b/arch/arc/plat-hsdk/Makefile
new file mode 100644
index 000000000000..9a50c511a672
--- /dev/null
+++ b/arch/arc/plat-hsdk/Makefile
@@ -0,0 +1,9 @@
+#
+# Copyright (C) 2017 Synopsys, Inc. (www.synopsys.com)
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+
+obj-y := platform.o
diff --git a/arch/arc/plat-hsdk/platform.c b/arch/arc/plat-hsdk/platform.c
new file mode 100644
index 000000000000..744e62e58788
--- /dev/null
+++ b/arch/arc/plat-hsdk/platform.c
@@ -0,0 +1,108 @@
+/*
+ * ARC HSDK Platform support code
+ *
+ * Copyright (C) 2017 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/smp.h>
+#include <asm/arcregs.h>
+#include <asm/io.h>
+#include <asm/mach_desc.h>
+
+#define ARC_CCM_UNUSED_ADDR 0x60000000
+
+static void __init hsdk_init_per_cpu(unsigned int cpu)
+{
+ /*
+ * By default ICCM is mapped to 0x7z while this area is used for
+ * kernel virtual mappings, so move it to currently unused area.
+ */
+ if (cpuinfo_arc700[cpu].iccm.sz)
+ write_aux_reg(ARC_REG_AUX_ICCM, ARC_CCM_UNUSED_ADDR);
+
+ /*
+ * By default DCCM is mapped to 0x8z while this area is used by kernel,
+ * so move it to currently unused area.
+ */
+ if (cpuinfo_arc700[cpu].dccm.sz)
+ write_aux_reg(ARC_REG_AUX_DCCM, ARC_CCM_UNUSED_ADDR);
+}
+
+#define ARC_PERIPHERAL_BASE 0xf0000000
+#define CREG_BASE (ARC_PERIPHERAL_BASE + 0x1000)
+#define CREG_PAE (CREG_BASE + 0x180)
+#define CREG_PAE_UPDATE (CREG_BASE + 0x194)
+
+#define CREG_CORE_IF_CLK_DIV (CREG_BASE + 0x4B8)
+#define CREG_CORE_IF_CLK_DIV_2 0x1
+#define CGU_BASE ARC_PERIPHERAL_BASE
+#define CGU_PLL_STATUS (ARC_PERIPHERAL_BASE + 0x4)
+#define CGU_PLL_CTRL (ARC_PERIPHERAL_BASE + 0x0)
+#define CGU_PLL_STATUS_LOCK BIT(0)
+#define CGU_PLL_STATUS_ERR BIT(1)
+#define CGU_PLL_CTRL_1GHZ 0x3A10
+#define HSDK_PLL_LOCK_TIMEOUT 500
+
+#define HSDK_PLL_LOCKED() \
+ !!(ioread32((void __iomem *) CGU_PLL_STATUS) & CGU_PLL_STATUS_LOCK)
+
+#define HSDK_PLL_ERR() \
+ !!(ioread32((void __iomem *) CGU_PLL_STATUS) & CGU_PLL_STATUS_ERR)
+
+static void __init hsdk_set_cpu_freq_1ghz(void)
+{
+ u32 timeout = HSDK_PLL_LOCK_TIMEOUT;
+
+ /*
+ * As we set cpu clock which exceeds 500MHz, the divider for the interface
+ * clock must be programmed to div-by-2.
+ */
+ iowrite32(CREG_CORE_IF_CLK_DIV_2, (void __iomem *) CREG_CORE_IF_CLK_DIV);
+
+ /* Set cpu clock to 1GHz */
+ iowrite32(CGU_PLL_CTRL_1GHZ, (void __iomem *) CGU_PLL_CTRL);
+
+ while (!HSDK_PLL_LOCKED() && timeout--)
+ cpu_relax();
+
+ if (!HSDK_PLL_LOCKED() || HSDK_PLL_ERR())
+ pr_err("Failed to setup CPU frequency to 1GHz!");
+}
+
+static void __init hsdk_init_early(void)
+{
+ /*
+ * PAE remapping for DMA clients does not work due to an RTL bug, so
+ * CREG_PAE register must be programmed to all zeroes, otherwise it
+ * will cause problems with DMA to/from peripherals even if PAE40 is
+ * not used.
+ */
+
+ /* Default is 1, which means "PAE offset = 4GByte" */
+ writel_relaxed(0, (void __iomem *) CREG_PAE);
+
+ /* Really apply settings made above */
+ writel(1, (void __iomem *) CREG_PAE_UPDATE);
+
+ /*
+ * Setup CPU frequency to 1GHz.
+ * TODO: remove it after smart hsdk pll driver will be introduced.
+ */
+ hsdk_set_cpu_freq_1ghz();
+}
+
+static const char *hsdk_compat[] __initconst = {
+ "snps,hsdk",
+ NULL,
+};
+
+MACHINE_START(SIMULATION, "hsdk")
+ .dt_compat = hsdk_compat,
+ .init_early = hsdk_init_early,
+ .init_per_cpu = hsdk_init_per_cpu,
+MACHINE_END
diff --git a/arch/arc/plat-sim/Kconfig b/arch/arc/plat-sim/Kconfig
deleted file mode 100644
index ac6af96a82f3..000000000000
--- a/arch/arc/plat-sim/Kconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# Copyright (C) 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
-#
-
-menuconfig ARC_PLAT_SIM
- bool "ARC nSIM based simulation virtual platforms"
- help
- Support for nSIM based ARC simulation platforms
- This includes the standalone nSIM (uart only) vs. System C OSCI VP
diff --git a/arch/arc/plat-sim/platform.c b/arch/arc/plat-sim/platform.c
index aea87389e44b..5cda56b1a2ea 100644
--- a/arch/arc/plat-sim/platform.c
+++ b/arch/arc/plat-sim/platform.c
@@ -20,11 +20,14 @@
*/
static const char *simulation_compat[] __initconst = {
+#ifdef CONFIG_ISA_ARCOMPACT
"snps,nsim",
- "snps,nsim_hs",
"snps,nsimosci",
+#else
+ "snps,nsim_hs",
"snps,nsimosci_hs",
"snps,zebu_hs",
+#endif
NULL,
};
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c0fcab6a5504..7888c9803eb0 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -22,9 +22,11 @@ config ARM
select CLONE_BACKWARDS
select CPU_PM if (SUSPEND || CPU_IDLE)
select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
+ select DMA_NOOP_OPS if !MMU
select EDAC_SUPPORT
select EDAC_ATOMIC_SCRUB
select GENERIC_ALLOCATOR
+ select GENERIC_ARCH_TOPOLOGY if ARM_CPU_TOPOLOGY
select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
select GENERIC_CLOCKEVENTS_BROADCAST if SMP
select GENERIC_CPU_AUTOPROBE
@@ -48,7 +50,7 @@ config ARM
select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
select HAVE_ARCH_TRACEHOOK
select HAVE_ARM_SMCCC if CPU_V7
- select HAVE_CBPF_JIT
+ select HAVE_EBPF_JIT if !CPU_ENDIAN_BE32
select HAVE_CC_STACKPROTECTOR
select HAVE_CONTEXT_TRACKING
select HAVE_C_RECORDMCOUNT
@@ -56,6 +58,7 @@ config ARM
select HAVE_DMA_API_DEBUG
select HAVE_DMA_CONTIGUOUS if MMU
select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL) && !CPU_ENDIAN_BE32 && MMU
+ select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE
select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
select HAVE_EXIT_THREAD
select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
@@ -337,7 +340,7 @@ config ARCH_MULTIPLATFORM
select ARM_HAS_SG_CHAIN
select ARM_PATCH_PHYS_VIRT
select AUTO_ZRELADDR
- select CLKSRC_OF
+ select TIMER_OF
select COMMON_CLK
select GENERIC_CLOCKEVENTS
select MIGHT_HAVE_PCI
@@ -351,7 +354,7 @@ config ARM_SINGLE_ARMV7M
depends on !MMU
select ARM_NVIC
select AUTO_ZRELADDR
- select CLKSRC_OF
+ select TIMER_OF
select COMMON_CLK
select CPU_V7M
select GENERIC_CLOCKEVENTS
@@ -377,7 +380,7 @@ config ARCH_EP93XX
bool "EP93xx-based"
select ARCH_HAS_HOLES_MEMORYMODEL
select ARM_AMBA
- select ARM_PATCH_PHYS_VIRT
+ imply ARM_PATCH_PHYS_VIRT
select ARM_VIC
select AUTO_ZRELADDR
select CLKDEV_LOOKUP
@@ -532,7 +535,7 @@ config ARCH_PXA
select CLKDEV_LOOKUP
select CLKSRC_PXA
select CLKSRC_MMIO
- select CLKSRC_OF
+ select TIMER_OF
select CPU_XSCALE if !CPU_XSC3
select GENERIC_CLOCKEVENTS
select GPIO_PXA
@@ -571,7 +574,7 @@ config ARCH_SA1100
select CLKDEV_LOOKUP
select CLKSRC_MMIO
select CLKSRC_PXA
- select CLKSRC_OF if OF
+ select TIMER_OF if OF
select CPU_FREQ
select CPU_SA1100
select GENERIC_CLOCKEVENTS
@@ -711,6 +714,8 @@ config ARCH_VIRT
#
source "arch/arm/mach-mvebu/Kconfig"
+source "arch/arm/mach-actions/Kconfig"
+
source "arch/arm/mach-alpine/Kconfig"
source "arch/arm/mach-artpec/Kconfig"
@@ -1357,7 +1362,7 @@ config HAVE_ARM_ARCH_TIMER
config HAVE_ARM_TWD
bool
- select CLKSRC_OF if OF
+ select TIMER_OF if OF
help
This options enables support for the ARM timer and watchdog unit
@@ -1461,6 +1466,7 @@ config ARM_PSCI
# selected platforms.
config ARCH_NR_GPIO
int
+ default 2048 if ARCH_SOCFPGA
default 1024 if ARCH_BRCMSTB || ARCH_SHMOBILE || ARCH_TEGRA || \
ARCH_ZYNQ
default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \
@@ -1525,7 +1531,6 @@ config THUMB2_KERNEL
bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
default y if CPU_THUMBONLY
- select AEABI
select ARM_ASM_UNIFIED
select ARM_UNWIND
help
@@ -1588,7 +1593,8 @@ config ARM_PATCH_IDIV
code to do integer division.
config AEABI
- bool "Use the ARM EABI to compile the kernel"
+ bool "Use the ARM EABI to compile the kernel" if !CPU_V7 && !CPU_V7M && !CPU_V6 && !CPU_V6K
+ default CPU_V7 || CPU_V7M || CPU_V6 || CPU_V6K
help
This option allows for the kernel to be compiled using the latest
ARM ABI (aka EABI). This is only useful if you are using a user
@@ -1638,7 +1644,7 @@ config ARCH_SELECT_MEMORY_MODEL
config HAVE_ARCH_PFN_VALID
def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
-config HAVE_GENERIC_RCU_GUP
+config HAVE_GENERIC_GUP
def_bool y
depends on ARM_LPAE
@@ -2062,6 +2068,23 @@ config EFI
is only useful for kernels that may run on systems that have
UEFI firmware.
+config DMI
+ bool "Enable support for SMBIOS (DMI) tables"
+ depends on EFI
+ default y
+ help
+ This enables SMBIOS/DMI feature for systems.
+
+ This option is only useful on systems that have UEFI firmware.
+ However, even with this option, the resultant kernel should
+ continue to boot on existing non-UEFI platforms.
+
+ NOTE: This does *NOT* enable or encourage the use of DMI quirks,
+ i.e., the the practice of identifying the platform via DMI to
+ decide whether certain workarounds for buggy hardware and/or
+ firmware need to be enabled. This would require the DMI subsystem
+ to be enabled much earlier than we do on ARM, which is non-trivial.
+
endmenu
menu "CPU Power Management"
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 426d2716f55d..6dcea8e8e941 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -145,6 +145,15 @@ choice
Say Y here if you want kernel low-level debugging support
on the USART3 port of sama5d4.
+ config DEBUG_AT91_SAMV7_USART1
+ bool "Kernel low-level debugging via SAMV7 USART1"
+ select DEBUG_AT91_UART
+ depends on SOC_SAMV7
+ help
+ Say Y here if you want the debug print routines to direct
+ their output to the USART1 port on SAMV7 based
+ machines.
+
config DEBUG_BCM2835
bool "Kernel low-level debugging on BCM2835 PL011 UART"
depends on ARCH_BCM2835 && ARCH_MULTI_V6
@@ -637,7 +646,7 @@ choice
config DEBUG_OMAP2UART1
bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
depends on ARCH_OMAP2PLUS
- select DEBUG_OMAP2PLUS_UART
+ select DEBUG_UART_8250
help
This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
omap3 torpedo and 3530 lv som.
@@ -645,17 +654,17 @@ choice
config DEBUG_OMAP2UART2
bool "Kernel low-level debugging messages via OMAP2/3/4 UART2"
depends on ARCH_OMAP2PLUS
- select DEBUG_OMAP2PLUS_UART
+ select DEBUG_UART_8250
config DEBUG_OMAP2UART3
bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)"
depends on ARCH_OMAP2PLUS
- select DEBUG_OMAP2PLUS_UART
+ select DEBUG_UART_8250
config DEBUG_OMAP3UART3
bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
depends on ARCH_OMAP2PLUS
- select DEBUG_OMAP2PLUS_UART
+ select DEBUG_UART_8250
help
This covers at least cm_t3x, beagle, crane, devkit8000,
igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
@@ -664,17 +673,17 @@ choice
config DEBUG_OMAP4UART3
bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
depends on ARCH_OMAP2PLUS
- select DEBUG_OMAP2PLUS_UART
+ select DEBUG_UART_8250
config DEBUG_OMAP3UART4
bool "Kernel low-level debugging messages via OMAP36XX UART4"
depends on ARCH_OMAP2PLUS
- select DEBUG_OMAP2PLUS_UART
+ select DEBUG_UART_8250
config DEBUG_OMAP4UART4
bool "Kernel low-level debugging messages via OMAP4/5 UART4"
depends on ARCH_OMAP2PLUS
- select DEBUG_OMAP2PLUS_UART
+ select DEBUG_UART_8250
config DEBUG_OMAP7XXUART1
bool "Kernel low-level debugging via OMAP730 UART1"
@@ -703,22 +712,22 @@ choice
config DEBUG_TI81XXUART1
bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
depends on ARCH_OMAP2PLUS
- select DEBUG_OMAP2PLUS_UART
+ select DEBUG_UART_8250
config DEBUG_TI81XXUART2
bool "Kernel low-level debugging messages via TI81XX UART2"
depends on ARCH_OMAP2PLUS
- select DEBUG_OMAP2PLUS_UART
+ select DEBUG_UART_8250
config DEBUG_TI81XXUART3
bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)"
depends on ARCH_OMAP2PLUS
- select DEBUG_OMAP2PLUS_UART
+ select DEBUG_UART_8250
config DEBUG_AM33XXUART1
bool "Kernel low-level debugging messages via AM33XX UART1"
depends on ARCH_OMAP2PLUS
- select DEBUG_OMAP2PLUS_UART
+ select DEBUG_UART_8250
config DEBUG_ZOOM_UART
bool "Kernel low-level debugging messages via Zoom2/3 UART"
@@ -751,6 +760,7 @@ choice
ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT
APQ8064 0x16640000 0xf0040000
APQ8084 0xf995e000 0xfa75e000
+ IPQ4019 0x078af000 0xf78af000
MSM8X60 0x19c40000 0xf0040000
MSM8960 0x16440000 0xf0040000
MSM8974 0xf991e000 0xfa71e000
@@ -776,6 +786,30 @@ choice
their output to the standard serial port on the RealView
PB1176 platform.
+ config DEBUG_RV1108_UART0
+ bool "Kernel low-level debugging messages via Rockchip RV1108 UART0"
+ depends on ARCH_ROCKCHIP
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Rockchip RV1108 based platforms.
+
+ config DEBUG_RV1108_UART1
+ bool "Kernel low-level debugging messages via Rockchip RV1108 UART1"
+ depends on ARCH_ROCKCHIP
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Rockchip RV1108 based platforms.
+
+ config DEBUG_RV1108_UART2
+ bool "Kernel low-level debugging messages via Rockchip RV1108 UART2"
+ depends on ARCH_ROCKCHIP
+ select DEBUG_UART_8250
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Rockchip RV1108 based platforms.
+
config DEBUG_RK29_UART0
bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
depends on ARCH_ROCKCHIP
@@ -862,12 +896,13 @@ choice
via SCIF2 on Renesas R-Car H1 (R8A7779).
config DEBUG_RCAR_GEN2_SCIF0
- bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7792/R8A7793"
- depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7792 || ARCH_R8A7793
+ bool "Kernel low-level debugging messages via SCIF0 on R-Car Gen2 and RZ/G1"
+ depends on ARCH_R8A7743 || ARCH_R8A7790 || ARCH_R8A7791 || \
+ ARCH_R8A7792 || ARCH_R8A7793
help
Say Y here if you want kernel low-level debugging support
- via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), V2H
- (R8A7792), or M2-N (R8A7793).
+ via SCIF0 on Renesas RZ/G1M (R8A7743), R-Car H2 (R8A7790),
+ M2-W (R8A7791), V2H (R8A7792), or M2-N (R8A7793).
config DEBUG_RCAR_GEN2_SCIF2
bool "Kernel low-level debugging messages via SCIF2 on R8A7794"
@@ -1465,6 +1500,9 @@ config DEBUG_UART_PHYS
default 0x10126000 if DEBUG_RK3X_UART1
default 0x101f1000 if DEBUG_VERSATILE
default 0x101fb000 if DEBUG_NOMADIK_UART
+ default 0x10210000 if DEBUG_RV1108_UART2
+ default 0x10220000 if DEBUG_RV1108_UART1
+ default 0x10230000 if DEBUG_RV1108_UART0
default 0x11002000 if DEBUG_MT8127_UART0
default 0x11006000 if DEBUG_MT6589_UART0
default 0x11009000 if DEBUG_MT8135_UART3
@@ -1481,10 +1519,22 @@ config DEBUG_UART_PHYS
default 0x3f201000 if DEBUG_BCM2836
default 0x3e000000 if DEBUG_BCM_KONA_UART
default 0x4000e400 if DEBUG_LL_UART_EFM32
+ default 0x40028000 if DEBUG_AT91_SAMV7_USART1
default 0x40081000 if DEBUG_LPC18XX_UART0
default 0x40090000 if DEBUG_LPC32XX
default 0x40100000 if DEBUG_PXA_UART1
default 0x42000000 if DEBUG_GEMINI
+ default 0x44e09000 if DEBUG_AM33XXUART1
+ default 0x48020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
+ default 0x48022000 if DEBUG_TI81XXUART2
+ default 0x48024000 if DEBUG_TI81XXUART3
+ default 0x4806a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
+ DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
+ default 0x4806c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
+ DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
+ default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
+ default 0x49020000 if DEBUG_OMAP3UART3
+ default 0x49042000 if DEBUG_OMAP3UART4
default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
DEBUG_S3C2410_UART0)
default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
@@ -1563,6 +1613,9 @@ config DEBUG_UART_PHYS
config DEBUG_UART_VIRT
hex "Virtual base address of debug UART"
+ default 0xc881f000 if DEBUG_RV1108_UART2
+ default 0xc8821000 if DEBUG_RV1108_UART1
+ default 0xc8912000 if DEBUG_RV1108_UART0
default 0xe0000a00 if DEBUG_NETX_UART
default 0xe0010fe0 if ARCH_RPC
default 0xf0000be0 if ARCH_EBSA110
@@ -1600,10 +1653,21 @@ config DEBUG_UART_VIRT
default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU
default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU
+ default 0xf9e09000 if DEBUG_AM33XXUART1
+ default 0xfa020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1
+ default 0xfa022000 if DEBUG_TI81XXUART2
+ default 0xfa024000 if DEBUG_TI81XXUART3
+ default 0xfa06a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
+ DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
+ default 0xfa06c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
+ DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
+ default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
default 0xfa71e000 if DEBUG_QCOM_UARTDM
default 0xfb002000 if DEBUG_CNS3XXX
default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3
+ default 0xfb020000 if DEBUG_OMAP3UART3
+ default 0xfb042000 if DEBUG_OMAP3UART4
default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
default 0xfc705000 if DEBUG_ZTE_ZX
default 0xfcfe8600 if DEBUG_BCM63XX_UART
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 65f4e2a4eb94..817e5cfef83a 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -131,7 +131,7 @@ endif
KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
-CHECKFLAGS += -D__arm__
+CHECKFLAGS += -D__arm__ -m32
#Default value
head-y := arch/arm/kernel/head$(MMUEXT).o
@@ -151,6 +151,7 @@ textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000
# Machine directory name. This list is sorted alphanumerically
# by CONFIG_* macro name.
+machine-$(CONFIG_ARCH_ACTIONS) += actions
machine-$(CONFIG_ARCH_ALPINE) += alpine
machine-$(CONFIG_ARCH_ARTPEC) += artpec
machine-$(CONFIG_ARCH_AT91) += at91
diff --git a/arch/arm/boot/compressed/debug.S b/arch/arm/boot/compressed/debug.S
index 5392ee63338f..8f6e37177de1 100644
--- a/arch/arm/boot/compressed/debug.S
+++ b/arch/arm/boot/compressed/debug.S
@@ -23,7 +23,11 @@ ENTRY(putc)
strb r0, [r1]
mov r0, #0x03 @ SYS_WRITEC
ARM( svc #0x123456 )
+#ifdef CONFIG_CPU_V7M
+ THUMB( bkpt #0xab )
+#else
THUMB( svc #0xab )
+#endif
mov pc, lr
.align 2
1: .word _GLOBAL_OFFSET_TABLE_ - .
diff --git a/arch/arm/boot/compressed/decompress.c b/arch/arm/boot/compressed/decompress.c
index ea7832702a8f..f3a4bedd1afc 100644
--- a/arch/arm/boot/compressed/decompress.c
+++ b/arch/arm/boot/compressed/decompress.c
@@ -33,6 +33,7 @@ extern void error(char *);
/* Not needed, but used in some headers pulled in by decompressors */
extern char * strstr(const char * s1, const char *s2);
extern size_t strlen(const char *s);
+extern int memcmp(const void *cs, const void *ct, size_t count);
#ifdef CONFIG_KERNEL_GZIP
#include "../../../../lib/decompress_inflate.c"
diff --git a/arch/arm/boot/compressed/efi-header.S b/arch/arm/boot/compressed/efi-header.S
index a17ca8d78656..c94a88ae834d 100644
--- a/arch/arm/boot/compressed/efi-header.S
+++ b/arch/arm/boot/compressed/efi-header.S
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2013-2015 Linaro Ltd
+ * Copyright (C) 2013-2017 Linaro Ltd
* Authors: Roy Franz <roy.franz@linaro.org>
* Ard Biesheuvel <ard.biesheuvel@linaro.org>
*
@@ -8,6 +8,9 @@
* published by the Free Software Foundation.
*/
+#include <linux/pe.h>
+#include <linux/sizes.h>
+
.macro __nop
#ifdef CONFIG_EFI_STUB
@ This is almost but not quite a NOP, since it does clobber the
@@ -15,7 +18,7 @@
@ PE/COFF expects the magic string "MZ" at offset 0, while the
@ ARM/Linux boot protocol expects an executable instruction
@ there.
- .inst 'M' | ('Z' << 8) | (0x1310 << 16) @ tstne r0, #0x4d000
+ .inst MZ_MAGIC | (0x1310 << 16) @ tstne r0, #0x4d000
#else
AR_CLASS( mov r0, r0 )
M_CLASS( nop.w )
@@ -34,96 +37,97 @@
@ The only 2 fields of the MSDOS header that are used are this
@ PE/COFF offset, and the "MZ" bytes at offset 0x0.
@
- .long pe_header - start @ Offset to the PE header.
+ .long pe_header - start @ Offset to the PE header.
pe_header:
- .ascii "PE\0\0"
+ .long PE_MAGIC
coff_header:
- .short 0x01c2 @ ARM or Thumb
- .short 2 @ nr_sections
- .long 0 @ TimeDateStamp
- .long 0 @ PointerToSymbolTable
- .long 1 @ NumberOfSymbols
- .short section_table - optional_header
- @ SizeOfOptionalHeader
- .short 0x306 @ Characteristics.
- @ IMAGE_FILE_32BIT_MACHINE |
- @ IMAGE_FILE_DEBUG_STRIPPED |
- @ IMAGE_FILE_EXECUTABLE_IMAGE |
- @ IMAGE_FILE_LINE_NUMS_STRIPPED
+ .short IMAGE_FILE_MACHINE_THUMB @ Machine
+ .short section_count @ NumberOfSections
+ .long 0 @ TimeDateStamp
+ .long 0 @ PointerToSymbolTable
+ .long 0 @ NumberOfSymbols
+ .short section_table - optional_header @ SizeOfOptionalHeader
+ .short IMAGE_FILE_32BIT_MACHINE | \
+ IMAGE_FILE_DEBUG_STRIPPED | \
+ IMAGE_FILE_EXECUTABLE_IMAGE | \
+ IMAGE_FILE_LINE_NUMS_STRIPPED @ Characteristics
+
+#define __pecoff_code_size (__pecoff_data_start - __efi_start)
optional_header:
- .short 0x10b @ PE32 format
- .byte 0x02 @ MajorLinkerVersion
- .byte 0x14 @ MinorLinkerVersion
- .long _end - __efi_start @ SizeOfCode
- .long 0 @ SizeOfInitializedData
- .long 0 @ SizeOfUninitializedData
- .long efi_stub_entry - start @ AddressOfEntryPoint
- .long start_offset @ BaseOfCode
- .long 0 @ data
+ .short PE_OPT_MAGIC_PE32 @ PE32 format
+ .byte 0x02 @ MajorLinkerVersion
+ .byte 0x14 @ MinorLinkerVersion
+ .long __pecoff_code_size @ SizeOfCode
+ .long __pecoff_data_size @ SizeOfInitializedData
+ .long 0 @ SizeOfUninitializedData
+ .long efi_stub_entry - start @ AddressOfEntryPoint
+ .long start_offset @ BaseOfCode
+ .long __pecoff_data_start - start @ BaseOfData
extra_header_fields:
- .long 0 @ ImageBase
- .long 0x200 @ SectionAlignment
- .long 0x200 @ FileAlignment
- .short 0 @ MajorOperatingSystemVersion
- .short 0 @ MinorOperatingSystemVersion
- .short 0 @ MajorImageVersion
- .short 0 @ MinorImageVersion
- .short 0 @ MajorSubsystemVersion
- .short 0 @ MinorSubsystemVersion
- .long 0 @ Win32VersionValue
+ .long 0 @ ImageBase
+ .long SZ_4K @ SectionAlignment
+ .long SZ_512 @ FileAlignment
+ .short 0 @ MajorOsVersion
+ .short 0 @ MinorOsVersion
+ .short 0 @ MajorImageVersion
+ .short 0 @ MinorImageVersion
+ .short 0 @ MajorSubsystemVersion
+ .short 0 @ MinorSubsystemVersion
+ .long 0 @ Win32VersionValue
- .long _end - start @ SizeOfImage
- .long start_offset @ SizeOfHeaders
- .long 0 @ CheckSum
- .short 0xa @ Subsystem (EFI application)
- .short 0 @ DllCharacteristics
- .long 0 @ SizeOfStackReserve
- .long 0 @ SizeOfStackCommit
- .long 0 @ SizeOfHeapReserve
- .long 0 @ SizeOfHeapCommit
- .long 0 @ LoaderFlags
- .long 0x6 @ NumberOfRvaAndSizes
+ .long __pecoff_end - start @ SizeOfImage
+ .long start_offset @ SizeOfHeaders
+ .long 0 @ CheckSum
+ .short IMAGE_SUBSYSTEM_EFI_APPLICATION @ Subsystem
+ .short 0 @ DllCharacteristics
+ .long 0 @ SizeOfStackReserve
+ .long 0 @ SizeOfStackCommit
+ .long 0 @ SizeOfHeapReserve
+ .long 0 @ SizeOfHeapCommit
+ .long 0 @ LoaderFlags
+ .long (section_table - .) / 8 @ NumberOfRvaAndSizes
- .quad 0 @ ExportTable
- .quad 0 @ ImportTable
- .quad 0 @ ResourceTable
- .quad 0 @ ExceptionTable
- .quad 0 @ CertificationTable
- .quad 0 @ BaseRelocationTable
+ .quad 0 @ ExportTable
+ .quad 0 @ ImportTable
+ .quad 0 @ ResourceTable
+ .quad 0 @ ExceptionTable
+ .quad 0 @ CertificationTable
+ .quad 0 @ BaseRelocationTable
section_table:
- @
- @ The EFI application loader requires a relocation section
- @ because EFI applications must be relocatable. This is a
- @ dummy section as far as we are concerned.
- @
- .ascii ".reloc\0\0"
- .long 0 @ VirtualSize
- .long 0 @ VirtualAddress
- .long 0 @ SizeOfRawData
- .long 0 @ PointerToRawData
- .long 0 @ PointerToRelocations
- .long 0 @ PointerToLineNumbers
- .short 0 @ NumberOfRelocations
- .short 0 @ NumberOfLineNumbers
- .long 0x42100040 @ Characteristics
-
.ascii ".text\0\0\0"
- .long _end - __efi_start @ VirtualSize
- .long __efi_start @ VirtualAddress
- .long _edata - __efi_start @ SizeOfRawData
- .long __efi_start @ PointerToRawData
- .long 0 @ PointerToRelocations
- .long 0 @ PointerToLineNumbers
- .short 0 @ NumberOfRelocations
- .short 0 @ NumberOfLineNumbers
- .long 0xe0500020 @ Characteristics
+ .long __pecoff_code_size @ VirtualSize
+ .long __efi_start @ VirtualAddress
+ .long __pecoff_code_size @ SizeOfRawData
+ .long __efi_start @ PointerToRawData
+ .long 0 @ PointerToRelocations
+ .long 0 @ PointerToLineNumbers
+ .short 0 @ NumberOfRelocations
+ .short 0 @ NumberOfLineNumbers
+ .long IMAGE_SCN_CNT_CODE | \
+ IMAGE_SCN_MEM_READ | \
+ IMAGE_SCN_MEM_EXECUTE @ Characteristics
+
+ .ascii ".data\0\0\0"
+ .long __pecoff_data_size @ VirtualSize
+ .long __pecoff_data_start - start @ VirtualAddress
+ .long __pecoff_data_rawsize @ SizeOfRawData
+ .long __pecoff_data_start - start @ PointerToRawData
+ .long 0 @ PointerToRelocations
+ .long 0 @ PointerToLineNumbers
+ .short 0 @ NumberOfRelocations
+ .short 0 @ NumberOfLineNumbers
+ .long IMAGE_SCN_CNT_INITIALIZED_DATA | \
+ IMAGE_SCN_MEM_READ | \
+ IMAGE_SCN_MEM_WRITE @ Characteristics
+
+ .set section_count, (. - section_table) / 40
- .align 9
+ .align 12
__efi_start:
#endif
.endm
diff --git a/arch/arm/boot/compressed/vmlinux.lds.S b/arch/arm/boot/compressed/vmlinux.lds.S
index 81c493156ce8..7a4c59154361 100644
--- a/arch/arm/boot/compressed/vmlinux.lds.S
+++ b/arch/arm/boot/compressed/vmlinux.lds.S
@@ -48,13 +48,6 @@ SECTIONS
*(.rodata)
*(.rodata.*)
}
- .data : {
- /*
- * The EFI stub always executes from RAM, and runs strictly before the
- * decompressor, so we can make an exception for its r/w data, and keep it
- */
- *(.data.efistub)
- }
.piggydata : {
*(.piggydata)
}
@@ -70,6 +63,26 @@ SECTIONS
/* ensure the zImage file size is always a multiple of 64 bits */
/* (without a dummy byte, ld just ignores the empty section) */
.pad : { BYTE(0); . = ALIGN(8); }
+
+#ifdef CONFIG_EFI_STUB
+ .data : ALIGN(4096) {
+ __pecoff_data_start = .;
+ /*
+ * The EFI stub always executes from RAM, and runs strictly before the
+ * decompressor, so we can make an exception for its r/w data, and keep it
+ */
+ *(.data.efistub)
+ __pecoff_data_end = .;
+
+ /*
+ * PE/COFF mandates a file size which is a multiple of 512 bytes if the
+ * section size equals or exceeds 4 KB
+ */
+ . = ALIGN(512);
+ }
+ __pecoff_data_rawsize = . - ADDR(.data);
+#endif
+
_edata = .;
_magic_sig = ZIMAGE_MAGIC(0x016f2818);
@@ -84,6 +97,9 @@ SECTIONS
. = ALIGN(8); /* the stack must be 64-bit aligned */
.stack : { *(.stack) }
+ PROVIDE(__pecoff_data_size = ALIGN(512) - ADDR(.data));
+ PROVIDE(__pecoff_end = ALIGN(512));
+
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 9c5e1d944d1c..faf46abaa4a2 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -46,6 +46,7 @@ dtb-$(CONFIG_SOC_AT91SAM9) += \
at91sam9x35ek.dtb
dtb-$(CONFIG_SOC_SAM_V7) += \
at91-kizbox2.dtb \
+ at91-sama5d27_som1_ek.dtb \
at91-sama5d2_xplained.dtb \
at91-sama5d3_xplained.dtb \
at91-tse850-3.dtb \
@@ -72,7 +73,9 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
bcm2835-rpi-b-plus.dtb \
bcm2835-rpi-a-plus.dtb \
bcm2836-rpi-2-b.dtb \
- bcm2835-rpi-zero.dtb
+ bcm2837-rpi-3-b.dtb \
+ bcm2835-rpi-zero.dtb \
+ bcm2835-rpi-zero-w.dtb
dtb-$(CONFIG_ARCH_BCM_5301X) += \
bcm4708-asus-rt-ac56u.dtb \
bcm4708-asus-rt-ac68u.dtb \
@@ -105,7 +108,8 @@ dtb-$(CONFIG_ARCH_BCM_5301X) += \
bcm953012hr.dtb \
bcm953012k.dtb
dtb-$(CONFIG_ARCH_BCM_53573) += \
- bcm47189-tenda-ac9.dtb
+ bcm47189-tenda-ac9.dtb \
+ bcm947189acdbmr.dtb
dtb-$(CONFIG_ARCH_BCM_63XX) += \
bcm963138dvt.dtb
dtb-$(CONFIG_ARCH_BCM_CYGNUS) += \
@@ -179,6 +183,7 @@ dtb-$(CONFIG_ARCH_EXYNOS5) += \
exynos5440-ssdk5440.dtb \
exynos5800-peach-pi.dtb
dtb-$(CONFIG_ARCH_GEMINI) += \
+ gemini-dlink-dir-685.dtb \
gemini-nas4220b.dtb \
gemini-rut1xx.dtb \
gemini-sq201.dtb \
@@ -204,7 +209,8 @@ dtb-$(CONFIG_ARCH_KEYSTONE) += \
keystone-k2hk-evm.dtb \
keystone-k2l-evm.dtb \
keystone-k2e-evm.dtb \
- keystone-k2g-evm.dtb
+ keystone-k2g-evm.dtb \
+ keystone-k2g-ice.dtb
dtb-$(CONFIG_MACH_KIRKWOOD) += \
kirkwood-b3.dtb \
kirkwood-blackarmor-nas220.dtb \
@@ -338,6 +344,7 @@ dtb-$(CONFIG_SOC_IMX51) += \
imx51-ts4800.dtb
dtb-$(CONFIG_SOC_IMX53) += \
imx53-ard.dtb \
+ imx53-cx9020.dtb \
imx53-m53evk.dtb \
imx53-mba53.dtb \
imx53-qsb.dtb \
@@ -363,6 +370,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
imx6dl-gw551x.dtb \
imx6dl-gw552x.dtb \
imx6dl-gw553x.dtb \
+ imx6dl-gw560x.dtb \
imx6dl-gw5903.dtb \
imx6dl-gw5904.dtb \
imx6dl-hummingboard.dtb \
@@ -388,7 +396,9 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
imx6dl-udoo.dtb \
imx6dl-wandboard.dtb \
imx6dl-wandboard-revb1.dtb \
+ imx6q-apalis-eval.dtb \
imx6q-apalis-ixora.dtb \
+ imx6q-apalis-ixora-v1.1.dtb \
imx6q-apf6dev.dtb \
imx6q-arm2.dtb \
imx6q-b450v3.dtb \
@@ -408,6 +418,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
imx6q-gw551x.dtb \
imx6q-gw552x.dtb \
imx6q-gw553x.dtb \
+ imx6q-gw560x.dtb \
imx6q-gw5903.dtb \
imx6q-gw5904.dtb \
imx6q-h100.dtb \
@@ -462,7 +473,7 @@ dtb-$(CONFIG_SOC_IMX6SX) += \
imx6sx-udoo-neo-full.dtb
dtb-$(CONFIG_SOC_IMX6UL) += \
imx6ul-14x14-evk.dtb \
- imx6ul-geam-kit.dtb \
+ imx6ul-geam.dtb \
imx6ul-isiot-emmc.dtb \
imx6ul-isiot-nand.dtb \
imx6ul-liteboard.dtb \
@@ -476,6 +487,7 @@ dtb-$(CONFIG_SOC_IMX7D) += \
imx7d-cl-som-imx7.dtb \
imx7d-colibri-eval-v3.dtb \
imx7d-nitrogen7.dtb \
+ imx7d-pico.dtb \
imx7d-sbc-imx7.dtb \
imx7d-sdb.dtb \
imx7d-sdb-sht11.dtb \
@@ -603,6 +615,7 @@ dtb-$(CONFIG_SOC_AM33XX) += \
am335x-bone.dtb \
am335x-boneblack.dtb \
am335x-boneblack-wireless.dtb \
+ am335x-boneblue.dtb \
am335x-bonegreen.dtb \
am335x-bonegreen-wireless.dtb \
am335x-chiliboard.dtb \
@@ -611,6 +624,7 @@ dtb-$(CONFIG_SOC_AM33XX) += \
am335x-evmsk.dtb \
am335x-icev2.dtb \
am335x-lxm.dtb \
+ am335x-moxa-uc-8100-me-t.dtb \
am335x-nano.dtb \
am335x-pepper.dtb \
am335x-phycore-rdk.dtb \
@@ -644,6 +658,7 @@ dtb-$(CONFIG_SOC_OMAP5) += \
dtb-$(CONFIG_SOC_DRA7XX) += \
am57xx-beagle-x15.dtb \
am57xx-beagle-x15-revb1.dtb \
+ am57xx-beagle-x15-revc.dtb \
am57xx-cl-som-am57x.dtb \
am57xx-sbc-am57x.dtb \
am572x-idk.dtb \
@@ -651,7 +666,8 @@ dtb-$(CONFIG_SOC_DRA7XX) += \
dra7-evm.dtb \
dra72-evm.dtb \
dra72-evm-revc.dtb \
- dra71-evm.dtb
+ dra71-evm.dtb \
+ dra76-evm.dtb
dtb-$(CONFIG_ARCH_ORION5X) += \
orion5x-kuroboxpro.dtb \
orion5x-lacie-d2-network.dtb \
@@ -663,6 +679,8 @@ dtb-$(CONFIG_ARCH_ORION5X) += \
orion5x-maxtor-shared-storage-2.dtb \
orion5x-netgear-wnr854t.dtb \
orion5x-rd88f5182-nas.dtb
+dtb-$(CONFIG_ARCH_ACTIONS) += \
+ owl-s500-guitar-bb-rev-b.dtb
dtb-$(CONFIG_ARCH_PRIMA2) += \
prima2-evb.dtb
dtb-$(CONFIG_ARCH_OXNAS) += \
@@ -701,9 +719,11 @@ dtb-$(CONFIG_ARCH_REALVIEW) += \
dtb-$(CONFIG_ARCH_RENESAS) += \
emev2-kzm9d.dtb \
r7s72100-genmai.dtb \
+ r7s72100-gr-peach.dtb \
r7s72100-rskrza1.dtb \
r8a73a4-ape6evm.dtb \
r8a7740-armadillo800eva.dtb \
+ r8a7743-iwg20d-q7.dtb \
r8a7743-sk-rzg1m.dtb \
r8a7745-sk-rzg1e.dtb \
r8a7778-bockw.dtb \
@@ -718,7 +738,7 @@ dtb-$(CONFIG_ARCH_RENESAS) += \
r8a7794-silk.dtb \
sh73a0-kzm9g.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += \
- rk1108-evb.dtb \
+ rv1108-evb.dtb \
rk3036-evb.dtb \
rk3036-kylin.dtb \
rk3066a-bqcurie2.dtb \
@@ -790,9 +810,12 @@ dtb-$(CONFIG_ARCH_STI) += \
dtb-$(CONFIG_ARCH_STM32)+= \
stm32f429-disco.dtb \
stm32f469-disco.dtb \
+ stm32f746-disco.dtb \
+ stm32f769-disco.dtb \
stm32429i-eval.dtb \
stm32746g-eval.dtb \
- stm32h743i-eval.dtb
+ stm32h743i-eval.dtb \
+ stm32h743i-disco.dtb
dtb-$(CONFIG_MACH_SUN4I) += \
sun4i-a10-a1000.dtb \
sun4i-a10-ba10-tvbox.dtb \
@@ -890,11 +913,13 @@ dtb-$(CONFIG_MACH_SUN8I) += \
sun8i-a33-q8-tablet.dtb \
sun8i-a33-sinlinx-sina33.dtb \
sun8i-a83t-allwinner-h8homlet-v2.dtb \
+ sun8i-a83t-bananapi-m3.dtb \
sun8i-a83t-cubietruck-plus.dtb \
sun8i-h2-plus-orangepi-zero.dtb \
sun8i-h3-bananapi-m2-plus.dtb \
sun8i-h3-beelink-x2.dtb \
sun8i-h3-nanopi-m1.dtb \
+ sun8i-h3-nanopi-m1-plus.dtb \
sun8i-h3-nanopi-neo.dtb \
sun8i-h3-nanopi-neo-air.dtb \
sun8i-h3-orangepi-2.dtb \
@@ -904,8 +929,10 @@ dtb-$(CONFIG_MACH_SUN8I) += \
sun8i-h3-orangepi-pc-plus.dtb \
sun8i-h3-orangepi-plus.dtb \
sun8i-h3-orangepi-plus2e.dtb \
+ sun8i-r16-bananapi-m2m.dtb \
sun8i-r16-parrot.dtb \
- sun8i-v3s-licheepi-zero.dtb
+ sun8i-v3s-licheepi-zero.dtb \
+ sun8i-v3s-licheepi-zero-dock.dtb
dtb-$(CONFIG_MACH_SUN9I) += \
sun9i-a80-optimus.dtb \
sun9i-a80-cubieboard4.dtb
@@ -920,8 +947,7 @@ dtb-$(CONFIG_ARCH_TEGRA_2x_SOC) += \
tegra20-seaboard.dtb \
tegra20-tec.dtb \
tegra20-trimslice.dtb \
- tegra20-ventana.dtb \
- tegra20-whistler.dtb
+ tegra20-ventana.dtb
dtb-$(CONFIG_ARCH_TEGRA_3x_SOC) += \
tegra30-apalis-eval.dtb \
tegra30-beaver.dtb \
@@ -956,7 +982,6 @@ dtb-$(CONFIG_ARCH_UNIPHIER) += \
uniphier-pro4-sanji.dtb \
uniphier-pxs2-gentil.dtb \
uniphier-pxs2-vodka.dtb \
- uniphier-sld3-ref.dtb \
uniphier-sld8-ref.dtb
dtb-$(CONFIG_ARCH_VERSATILE) += \
versatile-ab.dtb \
@@ -999,6 +1024,7 @@ dtb-$(CONFIG_MACH_ARMADA_38X) += \
armada-385-db-ap.dtb \
armada-385-linksys-caiman.dtb \
armada-385-linksys-cobra.dtb \
+ armada-385-linksys-rango.dtb \
armada-385-linksys-shelby.dtb \
armada-385-synology-ds116.dtb \
armada-385-turris-omnia.dtb \
@@ -1034,7 +1060,8 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += \
mt6580-evbp1.dtb \
mt6589-aquaris5.dtb \
mt6592-evb.dtb \
- mt7623-evb.dtb \
+ mt7623n-rfb-nand.dtb \
+ mt7623n-bananapi-bpi-r2.dtb \
mt8127-moose.dtb \
mt8135-evbp1.dtb
dtb-$(CONFIG_ARCH_ZX) += zx296702-ad1.dtb
diff --git a/arch/arm/boot/dts/aks-cdu.dts b/arch/arm/boot/dts/aks-cdu.dts
index 5b1bf92d927c..888bfcd4a402 100644
--- a/arch/arm/boot/dts/aks-cdu.dts
+++ b/arch/arm/boot/dts/aks-cdu.dts
@@ -62,32 +62,36 @@
status = "okay";
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "soft";
- nand-on-flash-bbt;
- status = "okay";
-
- bootstrap@0 {
- label = "bootstrap";
- reg = <0x0 0x40000>;
- };
-
- uboot@40000 {
- label = "uboot";
- reg = <0x40000 0x80000>;
- };
- ubootenv@c0000 {
- label = "ubootenv";
- reg = <0xc0000 0x40000>;
- };
- kernel@100000 {
- label = "kernel";
- reg = <0x100000 0x400000>;
- };
- rootfs@500000 {
- label = "rootfs";
- reg = <0x500000 0x7b00000>;
+ ebi: ebi@10000000 {
+ nand_controller: nand-controller {
+ nand: nand@3 {
+ partitions {
+ bootstrap@0 {
+ label = "bootstrap";
+ reg = <0x0 0x40000>;
+ };
+
+ uboot@40000 {
+ label = "uboot";
+ reg = <0x40000 0x80000>;
+ };
+
+ ubootenv@c0000 {
+ label = "ubootenv";
+ reg = <0xc0000 0x40000>;
+ };
+
+ kernel@100000 {
+ label = "kernel";
+ reg = <0x100000 0x400000>;
+ };
+
+ rootfs@500000 {
+ label = "rootfs";
+ reg = <0x500000 0x7b00000>;
+ };
+ };
+ };
};
};
};
diff --git a/arch/arm/boot/dts/am335x-baltos.dtsi b/arch/arm/boot/dts/am335x-baltos.dtsi
index d42b98f15e8b..ec6052c521ef 100644
--- a/arch/arm/boot/dts/am335x-baltos.dtsi
+++ b/arch/arm/boot/dts/am335x-baltos.dtsi
@@ -255,7 +255,7 @@
};
at24@50 {
- compatible = "at24,24c02";
+ compatible = "atmel,24c02";
pagesize = <8>;
reg = <0x50>;
};
diff --git a/arch/arm/boot/dts/am335x-base0033.dts b/arch/arm/boot/dts/am335x-base0033.dts
index c2bee452dab8..29782be07605 100644
--- a/arch/arm/boot/dts/am335x-base0033.dts
+++ b/arch/arm/boot/dts/am335x-base0033.dts
@@ -89,7 +89,7 @@
&i2c0 {
eeprom: eeprom@50 {
- compatible = "at,24c256";
+ compatible = "atmel,24c256";
reg = <0x50>;
};
};
diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
index bf6b26abe35b..48a15fc641f2 100644
--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
+++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
@@ -232,7 +232,7 @@
};
baseboard_eeprom: baseboard_eeprom@50 {
- compatible = "at,24c256";
+ compatible = "atmel,24c256";
reg = <0x50>;
#address-cells = <1>;
@@ -251,7 +251,7 @@
clock-frequency = <100000>;
cape_eeprom0: cape_eeprom0@54 {
- compatible = "at,24c256";
+ compatible = "atmel,24c256";
reg = <0x54>;
#address-cells = <1>;
#size-cells = <1>;
@@ -261,7 +261,7 @@
};
cape_eeprom1: cape_eeprom1@55 {
- compatible = "at,24c256";
+ compatible = "atmel,24c256";
reg = <0x55>;
#address-cells = <1>;
#size-cells = <1>;
@@ -271,7 +271,7 @@
};
cape_eeprom2: cape_eeprom2@56 {
- compatible = "at,24c256";
+ compatible = "atmel,24c256";
reg = <0x56>;
#address-cells = <1>;
#size-cells = <1>;
@@ -281,7 +281,7 @@
};
cape_eeprom3: cape_eeprom3@57 {
- compatible = "at,24c256";
+ compatible = "atmel,24c256";
reg = <0x57>;
#address-cells = <1>;
#size-cells = <1>;
@@ -319,13 +319,10 @@
ti,pmic-shutdown-controller;
charger {
- interrupts = <0>, <1>;
- interrupt-names = "USB", "AC";
status = "okay";
};
pwrbutton {
- interrupts = <2>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/am335x-boneblack-wireless.dts b/arch/arm/boot/dts/am335x-boneblack-wireless.dts
index 105bd10655f7..83f49f616b19 100644
--- a/arch/arm/boot/dts/am335x-boneblack-wireless.dts
+++ b/arch/arm/boot/dts/am335x-boneblack-wireless.dts
@@ -97,6 +97,11 @@
pinctrl-names = "default";
pinctrl-0 = <&uart3_pins &bt_pins>;
status = "okay";
+
+ bluetooth {
+ compatible = "ti,wl1835-st";
+ enable-gpios = <&gpio0 28 GPIO_ACTIVE_HIGH>;
+ };
};
&gpio3 {
diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts
index 935ed17d22e4..d154d3133c16 100644
--- a/arch/arm/boot/dts/am335x-boneblack.dts
+++ b/arch/arm/boot/dts/am335x-boneblack.dts
@@ -22,7 +22,7 @@
* BeagleBone Blacks have PG 2.0 silicon which is guaranteed
* to support 1GHz OPP so enable it for PG 2.0 on this board.
*/
- oppnitro@1000000000 {
+ oppnitro-1000000000 {
opp-supported-hw = <0x06 0x0100>;
};
};
diff --git a/arch/arm/boot/dts/am335x-boneblue.dts b/arch/arm/boot/dts/am335x-boneblue.dts
new file mode 100644
index 000000000000..cdc1b2be792f
--- /dev/null
+++ b/arch/arm/boot/dts/am335x-boneblue.dts
@@ -0,0 +1,460 @@
+/*
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+/dts-v1/;
+
+#include "am33xx.dtsi"
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+ model = "TI AM335x BeagleBone Blue";
+ compatible = "ti,am335x-bone-blue", "ti,am33xx";
+
+ cpus {
+ cpu@0 {
+ cpu0-supply = <&dcdc2_reg>;
+ };
+ };
+
+ memory@80000000 {
+ device_type = "memory";
+ reg = <0x80000000 0x20000000>; /* 512 MB */
+ };
+
+ chosen {
+ stdout-path = &uart0;
+ };
+
+ leds {
+ pinctrl-names = "default";
+ pinctrl-0 = <&user_leds_s0>;
+
+ compatible = "gpio-leds";
+
+ usr_0_led {
+ label = "beaglebone:green:usr0";
+ gpios = <&gpio1 21 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "heartbeat";
+ default-state = "off";
+ };
+
+ usr_1_led {
+ label = "beaglebone:green:usr1";
+ gpios = <&gpio1 22 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "mmc0";
+ default-state = "off";
+ };
+
+ usr_2_led {
+ label = "beaglebone:green:usr2";
+ gpios = <&gpio1 23 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "cpu0";
+ default-state = "off";
+ };
+
+ usr_3_led {
+ label = "beaglebone:green:usr3";
+ gpios = <&gpio1 24 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "mmc1";
+ default-state = "off";
+ };
+
+ wifi_led {
+ label = "wifi";
+ gpios = <&gpio0 19 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ linux,default-trigger = "phy0assoc";
+ };
+
+ red_led {
+ label = "red";
+ gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+
+ green_led {
+ label = "green";
+ gpios = <&gpio2 3 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+
+ batt_1_led {
+ label = "bat25";
+ gpios = <&gpio0 27 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+
+ batt_2_led {
+ label = "bat50";
+ gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+
+ batt_3_led {
+ label = "bat75";
+ gpios = <&gpio1 29 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+
+ batt_4_led {
+ label = "bat100";
+ gpios = <&gpio0 26 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+ };
+
+ vmmcsd_fixed: fixedregulator0 {
+ compatible = "regulator-fixed";
+ regulator-name = "vmmcsd_fixed";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ wlan_en_reg: fixedregulator@2 {
+ compatible = "regulator-fixed";
+ regulator-name = "wlan-en-regulator";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ startup-delay-us= <70000>;
+
+ /* WL_EN */
+ gpio = <&gpio3 9 0>;
+ enable-active-high;
+ };
+};
+
+&am33xx_pinmux {
+ user_leds_s0: user_leds_s0 {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x854, PIN_OUTPUT | MUX_MODE7) /* (V15) gpmc_a5.gpio1[21] - USR_LED_0 */
+ AM33XX_IOPAD(0x858, PIN_OUTPUT | MUX_MODE7) /* (U15) gpmc_a6.gpio1[22] - USR_LED_1 */
+ AM33XX_IOPAD(0x85c, PIN_OUTPUT | MUX_MODE7) /* (T15) gpmc_a7.gpio1[23] - USR_LED_2 */
+ AM33XX_IOPAD(0x860, PIN_OUTPUT | MUX_MODE7) /* (V16) gpmc_a8.gpio1[24] - USR_LED_3 */
+ AM33XX_IOPAD(0x9b0, PIN_OUTPUT | MUX_MODE7) /* (A15) xdma_event_intr0.gpio0[19] - WIFI_LED */
+ AM33XX_IOPAD(0x890, PIN_OUTPUT | MUX_MODE7) /* (R7) gpmc_advn_ale.gpio2[2] - P8.7, LED_RED, GP1_PIN_5 */
+ AM33XX_IOPAD(0x894, PIN_OUTPUT | MUX_MODE7) /* (T7) gpmc_oen_ren.gpio2[3] - P8.8, LED_GREEN, GP1_PIN_6 */
+ AM33XX_IOPAD(0x82c, PIN_OUTPUT | MUX_MODE7) /* (U12) gpmc_ad11.gpio0[27] - P8.17, BATT_LED_1 */
+ AM33XX_IOPAD(0x8dc, PIN_OUTPUT | MUX_MODE7) /* (T5) lcd_data15.gpio0[11] - P8.32, BATT_LED_2 */
+ AM33XX_IOPAD(0x87c, PIN_OUTPUT | MUX_MODE7) /* (V6) gpmc_csn0.gpio1[29] - P8.26, BATT_LED_3 */
+ AM33XX_IOPAD(0x828, PIN_OUTPUT | MUX_MODE7) /* (T11) gpmc_ad10.gpio0[26] - P8.14, BATT_LED_4 */
+
+ >;
+ };
+
+ i2c0_pins: pinmux_i2c0_pins {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x988, PIN_INPUT_PULLUP | MUX_MODE0) /* (C17) I2C0_SDA.I2C0_SDA */
+ AM33XX_IOPAD(0x98c, PIN_INPUT_PULLUP | MUX_MODE0) /* (C16) I2C0_SCL.I2C0_SCL */
+ >;
+ };
+
+ i2c2_pins: pinmux_i2c2_pins {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x978, PIN_INPUT_PULLUP | MUX_MODE3) /* (D18) uart1_ctsn.I2C2_SDA */
+ AM33XX_IOPAD(0x97c, PIN_INPUT_PULLUP | MUX_MODE3) /* (D17) uart1_rtsn.I2C2_SCL */
+ >;
+ };
+
+ uart0_pins: pinmux_uart0_pins {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x970, PIN_INPUT_PULLUP | MUX_MODE0) /* (E15) uart0_rxd.uart0_rxd */
+ AM33XX_IOPAD(0x974, PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* (E16) uart0_txd.uart0_txd */
+ >;
+ };
+
+ mmc1_pins: pinmux_mmc1_pins {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x960, PIN_INPUT | MUX_MODE7) /* (C15) spi0_cs1.gpio0[6] */
+ >;
+ };
+
+ mmc2_pins: pinmux_mmc2_pins {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x880, PIN_INPUT_PULLUP | MUX_MODE2) /* (U9) gpmc_csn1.mmc1_clk */
+ AM33XX_IOPAD(0x884, PIN_INPUT_PULLUP | MUX_MODE2) /* (V9) gpmc_csn2.mmc1_cmd */
+ AM33XX_IOPAD(0x800, PIN_INPUT_PULLUP | MUX_MODE1) /* (U7) gpmc_ad0.mmc1_dat0 */
+ AM33XX_IOPAD(0x804, PIN_INPUT_PULLUP | MUX_MODE1) /* (V7) gpmc_ad1.mmc1_dat1 */
+ AM33XX_IOPAD(0x808, PIN_INPUT_PULLUP | MUX_MODE1) /* (R8) gpmc_ad2.mmc1_dat2 */
+ AM33XX_IOPAD(0x80c, PIN_INPUT_PULLUP | MUX_MODE1) /* (T8) gpmc_ad3.mmc1_dat3 */
+ AM33XX_IOPAD(0x810, PIN_INPUT_PULLUP | MUX_MODE1) /* (U8) gpmc_ad4.mmc1_dat4 */
+ AM33XX_IOPAD(0x814, PIN_INPUT_PULLUP | MUX_MODE1) /* (V8) gpmc_ad5.mmc1_dat5 */
+ AM33XX_IOPAD(0x818, PIN_INPUT_PULLUP | MUX_MODE1) /* (R9) gpmc_ad6.mmc1_dat6 */
+ AM33XX_IOPAD(0x81c, PIN_INPUT_PULLUP | MUX_MODE1) /* (T9) gpmc_ad7.mmc1_dat7 */
+ >;
+ };
+
+ mmc3_pins: pinmux_mmc3_pins {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x93c, PIN_INPUT_PULLUP | MUX_MODE6) /* (L15) gmii1_rxd1.mmc2_clk */
+ AM33XX_IOPAD(0x914, PIN_INPUT_PULLUP | MUX_MODE6) /* (J16) gmii1_txen.mmc2_cmd */
+ AM33XX_IOPAD(0x918, PIN_INPUT_PULLUP | MUX_MODE5) /* (J17) gmii1_rxdv.mmc2_dat0 */
+ AM33XX_IOPAD(0x91c, PIN_INPUT_PULLUP | MUX_MODE5) /* (J18) gmii1_txd3.mmc2_dat1 */
+ AM33XX_IOPAD(0x920, PIN_INPUT_PULLUP | MUX_MODE5) /* (K15) gmii1_txd2.mmc2_dat2 */
+ AM33XX_IOPAD(0x908, PIN_INPUT_PULLUP | MUX_MODE5) /* (H16) gmii1_col.mmc2_dat3 */
+ >;
+ };
+
+ bt_pins: pinmux_bt_pins {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x928, PIN_OUTPUT_PULLUP | MUX_MODE7) /* (K17) gmii1_txd0.gpio0[28] - BT_EN */
+ >;
+ };
+
+ uart3_pins: pinmux_uart3_pins {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x934, PIN_INPUT_PULLUP | MUX_MODE1) /* (L17) gmii1_rxd3.uart3_rxd */
+ AM33XX_IOPAD(0x938, PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* (L16) gmii1_rxd2.uart3_txd */
+ AM33XX_IOPAD(0x948, PIN_INPUT | MUX_MODE3) /* (M17) mdio_data.uart3_ctsn */
+ AM33XX_IOPAD(0x94c, PIN_OUTPUT_PULLDOWN | MUX_MODE3) /* (M18) mdio_clk.uart3_rtsn */
+ >;
+ };
+
+ wl18xx_pins: pinmux_wl18xx_pins {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x92c, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* (K18) gmii1_txclk.gpio3[9] - WL_EN */
+ AM33XX_IOPAD(0x944, PIN_INPUT_PULLDOWN | MUX_MODE7) /* (H18) rmii1_refclk.gpio0[29] - WL_IRQ */
+ AM33XX_IOPAD(0x930, PIN_OUTPUT_PULLUP | MUX_MODE7) /* (L18) gmii1_rxclk.gpio3[10] - LS_BUF_EN */
+ >;
+ };
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pins>;
+
+ status = "okay";
+};
+
+&usb {
+ status = "okay";
+};
+
+&usb_ctrl_mod {
+ status = "okay";
+};
+
+&usb0_phy {
+ status = "okay";
+};
+
+&usb1_phy {
+ status = "okay";
+};
+
+&usb0 {
+ status = "okay";
+ dr_mode = "peripheral";
+ interrupts-extended = <&intc 18 &tps 0>;
+ interrupt-names = "mc", "vbus";
+};
+
+&usb1 {
+ status = "okay";
+ dr_mode = "host";
+};
+
+&cppi41dma {
+ status = "okay";
+};
+
+&i2c0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_pins>;
+
+ status = "okay";
+ clock-frequency = <400000>;
+
+ tps: tps@24 {
+ reg = <0x24>;
+ };
+
+ baseboard_eeprom: baseboard_eeprom@50 {
+ compatible = "at,24c256";
+ reg = <0x50>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ baseboard_data: baseboard_data@0 {
+ reg = <0 0x100>;
+ };
+ };
+};
+
+&i2c2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c2_pins>;
+
+ status = "okay";
+ clock-frequency = <400000>;
+
+ mpu9250@68 {
+ compatible = "invensense,mpu9250";
+ reg = <0x68>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <21 GPIO_ACTIVE_LOW>;
+ i2c-gate {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ ax8975@c {
+ compatible = "ak,ak8975";
+ reg = <0x0c>;
+ };
+ };
+ };
+
+ pressure@76 {
+ compatible = "bosch,bmp280";
+ reg = <0x76>;
+ };
+};
+
+/include/ "tps65217.dtsi"
+
+&tps {
+ interrupts = <7>; /* NMI */
+ interrupt-parent = <&intc>;
+
+ charger {
+ interrupts = <0>, <1>;
+ interrupt-names = "USB", "AC";
+ status = "okay";
+ };
+
+ pwrbutton {
+ interrupts = <2>;
+ status = "okay";
+ };
+
+ regulators {
+ dcdc1_reg: regulator@0 {
+ regulator-name = "vdds_dpr";
+ regulator-always-on;
+ };
+
+ dcdc2_reg: regulator@1 {
+ /* VDD_MPU voltage limits 0.95V - 1.26V with +/-4% tolerance */
+ regulator-name = "vdd_mpu";
+ regulator-min-microvolt = <925000>;
+ regulator-max-microvolt = <1351500>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ dcdc3_reg: regulator@2 {
+ /* VDD_CORE voltage limits 0.95V - 1.1V with +/-4% tolerance */
+ regulator-name = "vdd_core";
+ regulator-min-microvolt = <925000>;
+ regulator-max-microvolt = <1150000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo1_reg: regulator@3 {
+ regulator-name = "vio,vrtc,vdds";
+ regulator-always-on;
+ };
+
+ ldo2_reg: regulator@4 {
+ regulator-name = "vdd_3v3aux";
+ regulator-always-on;
+ };
+
+ ldo3_reg: regulator@5 {
+ regulator-name = "vdd_1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
+ ldo4_reg: regulator@6 {
+ regulator-name = "vdd_3v3a";
+ regulator-always-on;
+ };
+ };
+};
+
+&mmc1 {
+ status = "okay";
+ vmmc-supply = <&vmmcsd_fixed>;
+ bus-width = <4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc1_pins>;
+ cd-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
+};
+
+&mmc2 {
+ status = "okay";
+ vmmc-supply = <&vmmcsd_fixed>;
+ bus-width = <8>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc2_pins>;
+};
+
+&mmc3 {
+ dmas = <&edma_xbar 12 0 1
+ &edma_xbar 13 0 2>;
+ dma-names = "tx", "rx";
+ status = "okay";
+ vmmc-supply = <&wlan_en_reg>;
+ bus-width = <4>;
+ non-removable;
+ cap-power-off-card;
+ ti,needs-special-hs-handling;
+ keep-power-in-suspend;
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc3_pins &wl18xx_pins>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ wlcore: wlcore@2 {
+ compatible = "ti,wl1835";
+ reg = <2>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <29 IRQ_TYPE_EDGE_RISING>;
+ };
+};
+
+&tscadc {
+ status = "okay";
+ adc {
+ ti,adc-channels = <0 1 2 3 4 5 6 7>;
+ };
+};
+
+&uart3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart3_pins &bt_pins>;
+ status = "okay";
+
+ bluetooth {
+ compatible = "ti,wl1835-st";
+ enable-gpios = <&gpio0 28 GPIO_ACTIVE_HIGH>;
+ };
+};
+
+&aes {
+ status = "okay";
+};
+
+&sham {
+ status = "okay";
+};
+
+&rtc {
+ system-power-controller;
+ clocks = <&clk_32768_ck>, <&clkdiv32k_ick>;
+ clock-names = "ext-clk", "int-clk";
+};
+
+&gpio3 {
+ ls_buf_en {
+ gpio-hog;
+ gpios = <10 GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "LS_BUF_EN";
+ };
+};
diff --git a/arch/arm/boot/dts/am335x-bonegreen-wireless.dts b/arch/arm/boot/dts/am335x-bonegreen-wireless.dts
index 9d1a0fd555f3..57731f0daf10 100644
--- a/arch/arm/boot/dts/am335x-bonegreen-wireless.dts
+++ b/arch/arm/boot/dts/am335x-bonegreen-wireless.dts
@@ -97,6 +97,11 @@
pinctrl-names = "default";
pinctrl-0 = <&uart3_pins &bt_pins>;
status = "okay";
+
+ bluetooth {
+ compatible = "ti,wl1835-st";
+ enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
+ };
};
&gpio1 {
diff --git a/arch/arm/boot/dts/am335x-chiliboard.dts b/arch/arm/boot/dts/am335x-chiliboard.dts
index d8769799772e..59431b235944 100644
--- a/arch/arm/boot/dts/am335x-chiliboard.dts
+++ b/arch/arm/boot/dts/am335x-chiliboard.dts
@@ -191,13 +191,10 @@
interrupts = <7>; /* NNMI */
charger {
- interrupts = <0>, <1>;
- interrupt-names = "USB", "AC";
status = "okay";
};
pwrbutton {
- interrupts = <2>;
status = "okay";
};
};
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index 1c37a7c1ea17..ddd897556e03 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -531,6 +531,7 @@
interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
<1 IRQ_TYPE_NONE>; /* termcount */
rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */
+ ti,nand-xfer-type = "prefetch-dma";
ti,nand-ecc-opt = "bch8";
ti,elm-id = <&elm>;
nand-bus-width = <8>;
diff --git a/arch/arm/boot/dts/am335x-moxa-uc-8100-me-t.dts b/arch/arm/boot/dts/am335x-moxa-uc-8100-me-t.dts
new file mode 100644
index 000000000000..f82233cd18e0
--- /dev/null
+++ b/arch/arm/boot/dts/am335x-moxa-uc-8100-me-t.dts
@@ -0,0 +1,525 @@
+/*
+ * Copyright (C) 2017 MOXA Inc. - https://www.moxa.com/
+ *
+ * Author: SZ Lin (林上智) <sz.lin@moxa.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/dts-v1/;
+
+#include "am33xx.dtsi"
+
+/ {
+ model = "Moxa UC-8100-ME-T";
+ compatible = "moxa,uc-8100-me-t", "ti,am33xx";
+
+ cpus {
+ cpu@0 {
+ cpu0-supply = <&vdd1_reg>;
+ };
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0x80000000 0x20000000>; /* 512 MB */
+ };
+
+ vbat: vbat-regulator {
+ compatible = "regulator-fixed";
+ };
+
+ /* Power supply provides a fixed 3.3V @3A */
+ vmmcsd_fixed: vmmcsd-regulator {
+ compatible = "regulator-fixed";
+ regulator-name = "vmmcsd_fixed";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ led1 {
+ label = "uc8100me:CEL1";
+ gpios = <&gpio_xten 8 0>;
+ default-state = "off";
+ };
+
+ led2 {
+ label = "uc8100me:CEL2";
+ gpios = <&gpio_xten 9 0>;
+ default-state = "off";
+ };
+
+ led3 {
+ label = "uc8100me:CEL3";
+ gpios = <&gpio_xten 10 0>;
+ default-state = "off";
+ };
+
+ led4 {
+ label = "uc8100me:DIA1";
+ gpios = <&gpio_xten 11 0>;
+ default-state = "off";
+ };
+ led5 {
+ label = "uc8100me:DIA2";
+ gpios = <&gpio_xten 12 0>;
+ default-state = "off";
+ };
+ led6 {
+ label = "uc8100me:DIA3";
+ gpios = <&gpio_xten 13 0>;
+ default-state = "off";
+ };
+ led7 {
+ label = "uc8100me:SD";
+ gpios = <&gpio_xten 14 0>;
+ default-state = "off";
+ };
+ led8 {
+ label = "uc8100me:USB";
+ gpios = <&gpio_xten 15 0>;
+ default-state = "off";
+ };
+ led9 {
+ label = "uc8100me:USER";
+ gpios = <&gpio0 20 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+ };
+
+ buttons: push_button {
+ compatible = "gpio-keys";
+ };
+
+};
+
+&am33xx_pinmux {
+ pinctrl-names = "default";
+ pinctrl-0 = <&minipcie_pins>;
+
+ minipcie_pins: pinmux_minipcie {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x8e8, PIN_INPUT_PULLDOWN | MUX_MODE7) /* lcd_pclk.gpio2_24 */
+ AM33XX_IOPAD(0x8ec, PIN_INPUT_PULLDOWN | MUX_MODE7) /* lcd_ac_bias_en.gpio2_25 */
+ AM33XX_IOPAD(0x8e0, PIN_INPUT_PULLDOWN | MUX_MODE7) /* lcd_vsync.gpio2_22 Power off PIN*/
+ >;
+ };
+
+ push_button_pins: pinmux_push_button {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x9ac, PIN_INPUT_PULLDOWN | MUX_MODE7) /* mcasp0_ahcklx.gpio3_21 */
+ >;
+ };
+
+ i2c0_pins: pinmux_i2c0_pins {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x988, PIN_INPUT_PULLUP | MUX_MODE0) /* i2c0_sda.i2c0_sda */
+ AM33XX_IOPAD(0x98c, PIN_INPUT_PULLUP | MUX_MODE0) /* i2c0_scl.i2c0_scl */
+ >;
+ };
+
+
+ i2c1_pins: pinmux_i2c1_pins {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x968, PIN_INPUT_PULLUP | MUX_MODE3) /* uart0_ctsn.i2c1_sda */
+ AM33XX_IOPAD(0x96c, PIN_INPUT_PULLUP | MUX_MODE3) /* uart0_rtsn.i2c1_scl */
+ >;
+ };
+
+ uart0_pins: pinmux_uart0_pins {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x970, PIN_INPUT_PULLUP | MUX_MODE0) /* uart0_rxd.uart0_rxd */
+ AM33XX_IOPAD(0x974, PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* uart0_txd.uart0_txd */
+ >;
+ };
+
+ uart1_pins: pinmux_uart1_pins {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x978, PIN_INPUT | MUX_MODE0) /* uart1_ctsn.uart1_ctsn */
+ AM33XX_IOPAD(0x97C, PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* uart1_rtsn.uart1_rtsn */
+ AM33XX_IOPAD(0x980, PIN_INPUT_PULLUP | MUX_MODE0) /* uart1_rxd.uart1_rxd */
+ AM33XX_IOPAD(0x984, PIN_OUTPUT | MUX_MODE0) /* uart1_txd.uart1_txd */
+ >;
+ };
+
+ uart2_pins: pinmux_uart2_pins {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x8d8, PIN_INPUT | MUX_MODE6) /* lcd_data14.uart5_ctsn */
+ AM33XX_IOPAD(0x8dc, PIN_OUTPUT_PULLDOWN | MUX_MODE6) /* lcd_data15.uart5_rtsn */
+ AM33XX_IOPAD(0x8c4, PIN_INPUT_PULLUP | MUX_MODE4) /* lcd_data9.uart5_rxd */
+ AM33XX_IOPAD(0x8c0, PIN_OUTPUT | MUX_MODE4) /* lcd_data8.uart5_txd */
+ >;
+ };
+
+ cpsw_default: cpsw_default {
+ pinctrl-single,pins = <
+ /* Slave 1 */
+ AM33XX_IOPAD(0x90c, PIN_INPUT_PULLDOWN | MUX_MODE1) /* mii1_crs.rmii1_crs_dv */
+ AM33XX_IOPAD(0x910, PIN_INPUT_PULLUP | MUX_MODE1) /* mii1_rxerr.rmii1_rxerr */
+ AM33XX_IOPAD(0x914, PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* mii1_txen.rmii1_txen */
+ AM33XX_IOPAD(0x924, PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* mii1_txd1.rmii1_txd1 */
+ AM33XX_IOPAD(0x928, PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* mii1_txd0.rmii1_txd0 */
+ AM33XX_IOPAD(0x93c, PIN_INPUT_PULLUP | MUX_MODE1) /* mii1_rxd1.rmii1_rxd1 */
+ AM33XX_IOPAD(0x940, PIN_INPUT_PULLUP | MUX_MODE1) /* mii1_rxd0.rmii1_rxd0 */
+ AM33XX_IOPAD(0x944, PIN_INPUT_PULLDOWN | MUX_MODE0) /* mii1_refclk.rmii1_refclk */
+
+ /* Slave 2 */
+ AM33XX_IOPAD(0x870, PIN_INPUT_PULLDOWN | MUX_MODE3) /* rmii2_crs_dv */
+ AM33XX_IOPAD(0x874, PIN_INPUT_PULLDOWN | MUX_MODE3) /* rmii2_rxer */
+ AM33XX_IOPAD(0x840, PIN_OUTPUT_PULLDOWN | MUX_MODE3) /* rmii2_txen */
+ AM33XX_IOPAD(0x850, PIN_OUTPUT_PULLDOWN | MUX_MODE3) /* rmii2_td1 */
+ AM33XX_IOPAD(0x854, PIN_OUTPUT_PULLDOWN | MUX_MODE3) /* rmii2_td0 */
+ AM33XX_IOPAD(0x868, PIN_INPUT_PULLDOWN | MUX_MODE3) /* rmii2_rd1 */
+ AM33XX_IOPAD(0x86c, PIN_INPUT_PULLDOWN | MUX_MODE3) /* rmii2_rd0 */
+ AM33XX_IOPAD(0x908, PIN_INPUT_PULLDOWN | MUX_MODE1) /* rmii2_refclk */
+
+ >;
+ };
+
+ davinci_mdio_default: davinci_mdio_default {
+ pinctrl-single,pins = <
+ /* MDIO */
+ AM33XX_IOPAD(0x948, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0) /* mdio_data.mdio_data */
+ AM33XX_IOPAD(0x94c, PIN_OUTPUT_PULLUP | MUX_MODE0) /* mdio_clk.mdio_clk */
+ >;
+ };
+
+ mmc0_pins_default: pinmux_mmc0_pins {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x8f0, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc0_dat3 */
+ AM33XX_IOPAD(0x8f4, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc0_dat2 */
+ AM33XX_IOPAD(0x8f8, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc0_dat1 */
+ AM33XX_IOPAD(0x8fc, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc0_dat0 */
+ AM33XX_IOPAD(0x900, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc0_clk */
+ AM33XX_IOPAD(0x904, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc0_cmd */
+ AM33XX_IOPAD(0x990, PIN_INPUT_PULLUP | MUX_MODE7) /* mcasp0_aclkx.gpio3_14 */
+ AM33XX_IOPAD(0x9a0, PIN_INPUT_PULLUP | MUX_MODE7) /* mcasp0_aclkx.gpio3_18 */
+ >;
+ };
+
+ mmc2_pins_default: pinmux_mmc2_pins {
+ pinctrl-single,pins = <
+ /* eMMC */
+ AM33XX_IOPAD(0x830, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_ad12.mmc2_dat0 */
+ AM33XX_IOPAD(0x834, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_ad13.mmc2_dat1 */
+ AM33XX_IOPAD(0x838, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_ad14.mmc2_dat2 */
+ AM33XX_IOPAD(0x83c, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_ad15.mmc2_dat3 */
+ AM33XX_IOPAD(0x820, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_ad8.mmc2_dat4 */
+ AM33XX_IOPAD(0x824, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_ad9.mmc2_dat5 */
+ AM33XX_IOPAD(0x828, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_ad10.mmc2_dat6 */
+ AM33XX_IOPAD(0x82c, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_ad11.mmc2_dat7 */
+ AM33XX_IOPAD(0x888, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_csn3.mmc2_cmd */
+ AM33XX_IOPAD(0x88c, PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_clk.mmc2_clk */
+ >;
+ };
+
+ spi0_pins: pinmux_spi0 {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x950, PIN_INPUT_PULLUP | MUX_MODE0) /* spi0_sclk.spi0_sclk */
+ AM33XX_IOPAD(0x95C, PIN_INPUT_PULLUP | MUX_MODE0) /* spi0_cs0.spi0_cs0 */
+ AM33XX_IOPAD(0x954, PIN_INPUT_PULLUP | MUX_MODE0) /* spi0_d0.spi0_d0 */
+ AM33XX_IOPAD(0x958, PIN_INPUT_PULLUP | MUX_MODE0) /* spi0_d1.spi0_d1 */
+ >;
+ };
+
+};
+
+&uart0 {
+ /* Console */
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pins>;
+};
+
+&uart1 {
+ /* UART 1 setting */
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_pins>;
+};
+
+&uart5 {
+ /* UART 2 setting */
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2_pins>;
+};
+
+&i2c0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_pins>;
+
+ status = "okay";
+ clock-frequency = <400000>;
+
+ tpm: tpm@20 {
+ compatible = "infineon,slb9645tt";
+ reg = <0x20>;
+ };
+
+ tps: tps@2d {
+ compatible = "ti,tps65910";
+ reg = <0x2d>;
+ };
+
+ eeprom: eeprom@50 {
+ compatible = "atmel,24c16";
+ pagesize = <16>;
+ reg = <0x50>;
+ };
+
+ rtc_wdt: rtc_wdt@68 {
+ compatible = "dallas,ds1374";
+ reg = <0x68>;
+ };
+};
+
+&i2c1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_pins>;
+
+ status = "okay";
+ clock-frequency = <400000>;
+ gpio_xten: gpio_xten@27 {
+ compatible = "nxp,pca9535";
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0x27>;
+ };
+};
+
+&usb {
+ status = "okay";
+};
+
+&usb_ctrl_mod {
+ status = "okay";
+};
+
+&usb0_phy {
+ status = "okay";
+};
+
+&usb1_phy {
+ status = "okay";
+};
+
+&usb0 {
+ status = "okay";
+ dr_mode = "host";
+};
+
+&usb1 {
+ status = "okay";
+ dr_mode = "host";
+};
+
+&cppi41dma {
+ status = "okay";
+};
+
+#include "tps65910.dtsi"
+
+&tps {
+ vcc1-supply = <&vbat>;
+ vcc2-supply = <&vbat>;
+ vcc3-supply = <&vbat>;
+ vcc4-supply = <&vbat>;
+ vcc5-supply = <&vbat>;
+ vcc6-supply = <&vbat>;
+ vcc7-supply = <&vbat>;
+ vccio-supply = <&vbat>;
+
+ regulators {
+ vrtc_reg: regulator@0 {
+ regulator-always-on;
+ };
+
+ vio_reg: regulator@1 {
+ regulator-always-on;
+ };
+
+ vdd1_reg: regulator@2 {
+ /* VDD_MPU voltage limits 0.95V - 1.26V with +/-4% tolerance */
+ regulator-name = "vdd_mpu";
+ regulator-min-microvolt = <912500>;
+ regulator-max-microvolt = <1378000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ vdd2_reg: regulator@3 {
+ /* VDD_CORE voltage limits 0.95V - 1.1V with +/-4% tolerance */
+ regulator-name = "vdd_core";
+ regulator-min-microvolt = <912500>;
+ regulator-max-microvolt = <1150000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ vdd3_reg: regulator@4 {
+ regulator-always-on;
+ };
+
+ vdig1_reg: regulator@5 {
+ regulator-always-on;
+ };
+
+ vdig2_reg: regulator@6 {
+ regulator-always-on;
+ };
+
+ vpll_reg: regulator@7 {
+ regulator-always-on;
+ };
+
+ vdac_reg: regulator@8 {
+ regulator-always-on;
+ };
+
+ vaux1_reg: regulator@9 {
+ regulator-always-on;
+ };
+
+ vaux2_reg: regulator@10 {
+ regulator-always-on;
+ };
+
+ vaux33_reg: regulator@11 {
+ regulator-always-on;
+ };
+
+ vmmc_reg: regulator@12 {
+ compatible = "regulator-fixed";
+ regulator-name = "vmmc_reg";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+ };
+};
+
+/* Power */
+&vbat {
+ regulator-name = "vbat";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+};
+
+&mac {
+ pinctrl-names = "default";
+ pinctrl-0 = <&cpsw_default>;
+ dual_emac = <1>;
+ status = "okay";
+};
+
+&davinci_mdio {
+ pinctrl-names = "default";
+ pinctrl-0 = <&davinci_mdio_default>;
+ status = "okay";
+};
+
+&cpsw_emac0 {
+ status = "okay";
+ phy_id = <&davinci_mdio>, <4>;
+ phy-mode = "rmii";
+ dual_emac_res_vlan = <1>;
+};
+
+&cpsw_emac1 {
+ status = "okay";
+ phy_id = <&davinci_mdio>, <5>;
+ phy-mode = "rmii";
+ dual_emac_res_vlan = <2>;
+};
+
+&phy_sel {
+ reg= <0x44e10650 0xf5>;
+ rmii-clock-ext;
+};
+
+&sham {
+ status = "okay";
+};
+
+&aes {
+ status = "okay";
+};
+
+&gpio0 {
+ ti,no-reset-on-init;
+};
+
+&mmc1 {
+ pinctrl-names = "default";
+ vmmc-supply = <&vmmcsd_fixed>;
+ bus-width = <4>;
+ pinctrl-0 = <&mmc0_pins_default>;
+ cd-gpios = <&gpio3 14 GPIO_ACTIVE_HIGH>;
+ wp-gpios = <&gpio3 18 GPIO_ACTIVE_HIGH>;
+ status = "okay";
+};
+
+&mmc3 {
+ dmas = <&edma_xbar 12 0 1
+ &edma_xbar 13 0 2>;
+ dma-names = "tx", "rx";
+ pinctrl-names = "default";
+ vmmc-supply = <&vmmcsd_fixed>;
+ bus-width = <8>;
+ pinctrl-0 = <&mmc2_pins_default>;
+ ti,non-removable;
+ status = "okay";
+};
+
+&buttons {
+ pinctrl-names = "default";
+ pinctrl-0 = <&push_button_pins>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ button@0 {
+ label = "push_button";
+ linux,code = <0x100>;
+ gpios = <&gpio3 21 GPIO_ACTIVE_LOW>;
+ };
+};
+
+/* SPI Busses */
+&spi0 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi0_pins>;
+
+ m25p80@0 {
+ compatible = "mx25l6405d";
+ spi-max-frequency = <40000000>;
+
+ reg = <0>;
+ spi-cpol;
+ spi-cpha;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ /* reg : The partition's offset and size within the mtd bank. */
+ partitions@0 {
+ label = "MLO";
+ reg = <0x0 0x80000>;
+ };
+
+ partitions@1 {
+ label = "U-Boot";
+ reg = <0x80000 0x100000>;
+ };
+
+ partitions@2 {
+ label = "U-Boot Env";
+ reg = <0x180000 0x20000>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/am335x-nano.dts b/arch/arm/boot/dts/am335x-nano.dts
index 807494bc722b..946d7069f417 100644
--- a/arch/arm/boot/dts/am335x-nano.dts
+++ b/arch/arm/boot/dts/am335x-nano.dts
@@ -224,7 +224,7 @@
};
eeprom@53 {
- compatible = "microchip,24c02";
+ compatible = "microchip,24c02", "atmel,24c02";
reg = <0x53>;
pagesize = <8>;
};
diff --git a/arch/arm/boot/dts/am335x-pepper.dts b/arch/arm/boot/dts/am335x-pepper.dts
index 30e2f8770aaf..03c7d77023c6 100644
--- a/arch/arm/boot/dts/am335x-pepper.dts
+++ b/arch/arm/boot/dts/am335x-pepper.dts
@@ -67,7 +67,7 @@
};
eeprom: eeprom@50 {
- compatible = "at,24c256";
+ compatible = "atmel,24c256";
reg = <0x50>;
};
diff --git a/arch/arm/boot/dts/am335x-phycore-som.dtsi b/arch/arm/boot/dts/am335x-phycore-som.dtsi
index 14533ff6d0ad..428a25e952b0 100644
--- a/arch/arm/boot/dts/am335x-phycore-som.dtsi
+++ b/arch/arm/boot/dts/am335x-phycore-som.dtsi
@@ -138,7 +138,7 @@
};
i2c_rtc: rtc@68 {
- compatible = "rv4162";
+ compatible = "microcrystal,rv4162";
reg = <0x68>;
status = "disabled";
};
diff --git a/arch/arm/boot/dts/am335x-shc.dts b/arch/arm/boot/dts/am335x-shc.dts
index bf8727a19ece..4f6a286ea293 100644
--- a/arch/arm/boot/dts/am335x-shc.dts
+++ b/arch/arm/boot/dts/am335x-shc.dts
@@ -188,7 +188,7 @@
};
at24@50 {
- compatible = "at24,24c32";
+ compatible = "atmel,24c32";
pagesize = <32>;
reg = <0x50>;
};
diff --git a/arch/arm/boot/dts/am335x-sl50.dts b/arch/arm/boot/dts/am335x-sl50.dts
index fc864a855991..1bcc60424ecd 100644
--- a/arch/arm/boot/dts/am335x-sl50.dts
+++ b/arch/arm/boot/dts/am335x-sl50.dts
@@ -305,7 +305,7 @@
};
eeprom: eeprom@50 {
- compatible = "at,24c256";
+ compatible = "atmel,24c256";
reg = <0x50>;
};
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 9e242943dcec..e58fab8aec5d 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -36,6 +36,8 @@
phy1 = &usb1_phy;
ethernet0 = &cpsw_emac0;
ethernet1 = &cpsw_emac1;
+ spi0 = &spi0;
+ spi1 = &spi1;
};
cpus {
@@ -64,64 +66,64 @@
* because the can not be enabled simultaneously on a
* single SoC.
*/
- opp50@300000000 {
+ opp50-300000000 {
opp-hz = /bits/ 64 <300000000>;
opp-microvolt = <950000 931000 969000>;
opp-supported-hw = <0x06 0x0010>;
opp-suspend;
};
- opp100@275000000 {
+ opp100-275000000 {
opp-hz = /bits/ 64 <275000000>;
opp-microvolt = <1100000 1078000 1122000>;
opp-supported-hw = <0x01 0x00FF>;
opp-suspend;
};
- opp100@300000000 {
+ opp100-300000000 {
opp-hz = /bits/ 64 <300000000>;
opp-microvolt = <1100000 1078000 1122000>;
opp-supported-hw = <0x06 0x0020>;
opp-suspend;
};
- opp100@500000000 {
+ opp100-500000000 {
opp-hz = /bits/ 64 <500000000>;
opp-microvolt = <1100000 1078000 1122000>;
opp-supported-hw = <0x01 0xFFFF>;
};
- opp100@600000000 {
+ opp100-600000000 {
opp-hz = /bits/ 64 <600000000>;
opp-microvolt = <1100000 1078000 1122000>;
opp-supported-hw = <0x06 0x0040>;
};
- opp120@600000000 {
+ opp120-600000000 {
opp-hz = /bits/ 64 <600000000>;
opp-microvolt = <1200000 1176000 1224000>;
opp-supported-hw = <0x01 0xFFFF>;
};
- opp120@720000000 {
+ opp120-720000000 {
opp-hz = /bits/ 64 <720000000>;
opp-microvolt = <1200000 1176000 1224000>;
opp-supported-hw = <0x06 0x0080>;
};
- oppturbo@720000000 {
+ oppturbo-720000000 {
opp-hz = /bits/ 64 <720000000>;
opp-microvolt = <1260000 1234800 1285200>;
opp-supported-hw = <0x01 0xFFFF>;
};
- oppturbo@800000000 {
+ oppturbo-800000000 {
opp-hz = /bits/ 64 <800000000>;
opp-microvolt = <1260000 1234800 1285200>;
opp-supported-hw = <0x06 0x0100>;
};
- oppnitro@1000000000 {
+ oppnitro-1000000000 {
opp-hz = /bits/ 64 <1000000000>;
opp-microvolt = <1325000 1298500 1351500>;
opp-supported-hw = <0x04 0x0200>;
@@ -431,7 +433,6 @@
&edma_xbar 25 0 0>;
dma-names = "tx", "rx";
interrupts = <64>;
- interrupt-parent = <&intc>;
reg = <0x48060000 0x1000>;
status = "disabled";
};
@@ -444,7 +445,6 @@
&edma 3 0>;
dma-names = "tx", "rx";
interrupts = <28>;
- interrupt-parent = <&intc>;
reg = <0x481d8000 0x1000>;
status = "disabled";
};
@@ -454,7 +454,6 @@
ti,hwmods = "mmc3";
ti,needs-special-reset;
interrupts = <29>;
- interrupt-parent = <&intc>;
reg = <0x47810000 0x1000>;
status = "disabled";
};
@@ -853,7 +852,6 @@
0x4a101200 0x100>;
#address-cells = <1>;
#size-cells = <1>;
- interrupt-parent = <&intc>;
/*
* c0_rx_thresh_pend
* c0_rx_pend
@@ -908,7 +906,6 @@
lcdc: lcdc@4830e000 {
compatible = "ti,am33xx-tilcdc";
reg = <0x4830e000 0x1000>;
- interrupt-parent = <&intc>;
interrupts = <36>;
ti,hwmods = "lcdc";
status = "disabled";
@@ -917,7 +914,6 @@
tscadc: tscadc@44e0d000 {
compatible = "ti,am3359-tscadc";
reg = <0x44e0d000 0x1000>;
- interrupt-parent = <&intc>;
interrupts = <16>;
ti,hwmods = "adc_tsc";
status = "disabled";
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index 176e09e9a45e..e5b061469bf8 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -59,32 +59,32 @@
compatible = "operating-points-v2-ti-cpu";
syscon = <&scm_conf>;
- opp50@300000000 {
+ opp50-300000000 {
opp-hz = /bits/ 64 <300000000>;
opp-microvolt = <950000 931000 969000>;
opp-supported-hw = <0xFF 0x01>;
opp-suspend;
};
- opp100@600000000 {
+ opp100-600000000 {
opp-hz = /bits/ 64 <600000000>;
opp-microvolt = <1100000 1078000 1122000>;
opp-supported-hw = <0xFF 0x04>;
};
- opp120@720000000 {
+ opp120-720000000 {
opp-hz = /bits/ 64 <720000000>;
opp-microvolt = <1200000 1176000 1224000>;
opp-supported-hw = <0xFF 0x08>;
};
- oppturbo@800000000 {
+ oppturbo-800000000 {
opp-hz = /bits/ 64 <800000000>;
opp-microvolt = <1260000 1234800 1285200>;
opp-supported-hw = <0xFF 0x10>;
};
- oppnitro@1000000000 {
+ oppnitro-1000000000 {
opp-hz = /bits/ 64 <1000000000>;
opp-microvolt = <1325000 1298500 1351500>;
opp-supported-hw = <0xFF 0x20>;
diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index 397e98b7e246..afb8eb0a0a16 100644
--- a/arch/arm/boot/dts/am437x-gp-evm.dts
+++ b/arch/arm/boot/dts/am437x-gp-evm.dts
@@ -149,6 +149,13 @@
system-clock-frequency = <12000000>;
};
};
+
+ beeper: beeper {
+ compatible = "gpio-beeper";
+ pinctrl-names = "default";
+ pinctrl-0 = <&beeper_pins>;
+ gpios = <&gpio4 12 GPIO_ACTIVE_HIGH>;
+ };
};
&am43xx_pinmux {
@@ -510,6 +517,13 @@
AM4372_IOPAD(0x974, PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* uart0_txd.uart0_txd */
>;
};
+
+ beeper_pins: beeper_pins {
+ pinctrl-single,pins = <
+ AM4372_IOPAD(0x9e0, PIN_OUTPUT_PULLUP | MUX_MODE7) /* cam1_field.gpio4_12 */
+ >;
+ };
+
};
&uart0 {
@@ -549,8 +563,6 @@
dcdc3: regulator-dcdc3 {
regulator-name = "vdcdc3";
- regulator-min-microvolt = <1500000>;
- regulator-max-microvolt = <1500000>;
regulator-boot-on;
regulator-always-on;
regulator-state-mem {
@@ -844,6 +856,7 @@
interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
<1 IRQ_TYPE_NONE>; /* termcount */
rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */
+ ti,nand-xfer-type = "prefetch-dma";
ti,nand-ecc-opt = "bch16";
ti,elm-id = <&elm>;
nand-bus-width = <8>;
diff --git a/arch/arm/boot/dts/am437x-idk-evm.dts b/arch/arm/boot/dts/am437x-idk-evm.dts
index c1f7f9336e64..5e364473067f 100644
--- a/arch/arm/boot/dts/am437x-idk-evm.dts
+++ b/arch/arm/boot/dts/am437x-idk-evm.dts
@@ -339,7 +339,7 @@
clock-frequency = <400000>;
at24@50 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
pagesize = <64>;
reg = <0x50>;
};
diff --git a/arch/arm/boot/dts/am437x-sk-evm.dts b/arch/arm/boot/dts/am437x-sk-evm.dts
index 4dc54bee2f36..2c6bf0684f50 100644
--- a/arch/arm/boot/dts/am437x-sk-evm.dts
+++ b/arch/arm/boot/dts/am437x-sk-evm.dts
@@ -451,8 +451,6 @@
dcdc3: regulator-dcdc3 {
regulator-name = "vdds_ddr";
- regulator-min-microvolt = <1500000>;
- regulator-max-microvolt = <1500000>;
regulator-boot-on;
regulator-always-on;
regulator-state-mem {
@@ -511,7 +509,7 @@
};
at24@50 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
pagesize = <64>;
reg = <0x50>;
};
diff --git a/arch/arm/boot/dts/am43x-epos-evm.dts b/arch/arm/boot/dts/am43x-epos-evm.dts
index 9acd4ccdec4e..081fa68b6f98 100644
--- a/arch/arm/boot/dts/am43x-epos-evm.dts
+++ b/arch/arm/boot/dts/am43x-epos-evm.dts
@@ -388,6 +388,7 @@
pinctrl-0 = <&cpsw_default>;
pinctrl-1 = <&cpsw_sleep>;
status = "okay";
+ slaves = <1>;
};
&davinci_mdio {
@@ -402,11 +403,6 @@
phy-mode = "rmii";
};
-&cpsw_emac1 {
- phy_id = <&davinci_mdio>, <1>;
- phy-mode = "rmii";
-};
-
&phy_sel {
rmii-clock-ext;
};
@@ -442,8 +438,6 @@
dcdc3: regulator-dcdc3 {
regulator-name = "vdcdc3";
- regulator-min-microvolt = <1500000>;
- regulator-max-microvolt = <1500000>;
regulator-boot-on;
regulator-always-on;
};
@@ -477,7 +471,7 @@
};
at24@50 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
pagesize = <64>;
reg = <0x50>;
};
@@ -566,6 +560,7 @@
interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
<1 IRQ_TYPE_NONE>; /* termcount */
rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */
+ ti,nand-xfer-type = "prefetch-dma";
ti,nand-ecc-opt = "bch16";
ti,elm-id = <&elm>;
nand-bus-width = <8>;
diff --git a/arch/arm/boot/dts/am43xx-clocks.dtsi b/arch/arm/boot/dts/am43xx-clocks.dtsi
index d1d73b725f47..430be5829f8f 100644
--- a/arch/arm/boot/dts/am43xx-clocks.dtsi
+++ b/arch/arm/boot/dts/am43xx-clocks.dtsi
@@ -833,4 +833,40 @@
ti,bit-shift = <23>;
reg = <0x4100>;
};
+
+ clkout2_src_mux_ck: clkout2_src_mux_ck {
+ #clock-cells = <0>;
+ compatible = "ti,mux-clock";
+ clocks = <&clk_rc32k_ck>, <&sysclk_div>, <&dpll_ddr_m2_ck>,
+ <&dpll_per_m2_ck>, <&dpll_disp_m2_ck>,
+ <&dpll_mpu_m2_ck>, <&dpll_extdev_ck>;
+ reg = <0x4108>;
+ };
+
+ clkout2_pre_div_ck: clkout2_pre_div_ck {
+ #clock-cells = <0>;
+ compatible = "ti,divider-clock";
+ clocks = <&clkout2_src_mux_ck>;
+ ti,bit-shift = <4>;
+ ti,max-div = <8>;
+ reg = <0x4108>;
+ };
+
+ clkout2_post_div_ck: clkout2_post_div_ck {
+ #clock-cells = <0>;
+ compatible = "ti,divider-clock";
+ clocks = <&clkout2_pre_div_ck>;
+ ti,bit-shift = <8>;
+ ti,max-div = <32>;
+ ti,index-power-of-two;
+ reg = <0x4108>;
+ };
+
+ clkout2_ck: clkout2_ck {
+ #clock-cells = <0>;
+ compatible = "ti,gate-clock";
+ clocks = <&clkout2_post_div_ck>;
+ ti,bit-shift = <16>;
+ reg = <0x4108>;
+ };
};
diff --git a/arch/arm/boot/dts/am571x-idk.dts b/arch/arm/boot/dts/am571x-idk.dts
index ad68d1eb3bc3..debf9464403e 100644
--- a/arch/arm/boot/dts/am571x-idk.dts
+++ b/arch/arm/boot/dts/am571x-idk.dts
@@ -11,6 +11,7 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include "am57xx-idk-common.dtsi"
+#include "dra72x-mmc-iodelay.dtsi"
/ {
model = "TI AM5718 IDK";
@@ -64,13 +65,6 @@
};
};
-&mmc1 {
- status = "okay";
- vmmc-supply = <&ldo1_reg>;
- bus-width = <4>;
- cd-gpios = <&gpio6 27 0>; /* gpio 219 */
-};
-
&omap_dwc3_2 {
extcon = <&extcon_usb2>;
};
@@ -79,3 +73,47 @@
id-gpio = <&gpio5 7 GPIO_ACTIVE_HIGH>;
vbus-gpio = <&gpio7 22 GPIO_ACTIVE_HIGH>;
};
+
+&mailbox5 {
+ status = "okay";
+ mbox_ipu1_ipc3x: mbox_ipu1_ipc3x {
+ status = "okay";
+ };
+ mbox_dsp1_ipc3x: mbox_dsp1_ipc3x {
+ status = "okay";
+ };
+};
+
+&mailbox6 {
+ status = "okay";
+ mbox_ipu2_ipc3x: mbox_ipu2_ipc3x {
+ status = "okay";
+ };
+};
+
+&pcie1_rc {
+ status = "okay";
+ gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
+};
+
+&pcie1_ep {
+ gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
+};
+
+&mmc1 {
+ pinctrl-names = "default", "hs", "sdr12", "sdr25", "sdr50", "ddr50", "sdr104";
+ pinctrl-0 = <&mmc1_pins_default>;
+ pinctrl-1 = <&mmc1_pins_hs>;
+ pinctrl-2 = <&mmc1_pins_sdr12>;
+ pinctrl-3 = <&mmc1_pins_sdr25>;
+ pinctrl-4 = <&mmc1_pins_sdr50>;
+ pinctrl-5 = <&mmc1_pins_ddr50_rev20 &mmc1_iodelay_ddr50_conf>;
+ pinctrl-6 = <&mmc1_pins_sdr104 &mmc1_iodelay_sdr104_rev20_conf>;
+};
+
+&mmc2 {
+ pinctrl-names = "default", "hs", "ddr_1_8v";
+ pinctrl-0 = <&mmc2_pins_default>;
+ pinctrl-1 = <&mmc2_pins_hs>;
+ pinctrl-2 = <&mmc2_pins_ddr_rev20 &mmc2_iodelay_ddr_conf>;
+};
diff --git a/arch/arm/boot/dts/am572x-idk.dts b/arch/arm/boot/dts/am572x-idk.dts
index 8350b4b34b08..a578fe97ba3b 100644
--- a/arch/arm/boot/dts/am572x-idk.dts
+++ b/arch/arm/boot/dts/am572x-idk.dts
@@ -12,6 +12,7 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include "am57xx-idk-common.dtsi"
+#include "dra74x-mmc-iodelay.dtsi"
/ {
model = "TI AM5728 IDK";
@@ -67,6 +68,24 @@
};
};
+&mmc1 {
+ pinctrl-names = "default", "hs", "sdr12", "sdr25", "sdr50", "ddr50", "sdr104";
+ pinctrl-0 = <&mmc1_pins_default>;
+ pinctrl-1 = <&mmc1_pins_hs>;
+ pinctrl-2 = <&mmc1_pins_sdr12>;
+ pinctrl-3 = <&mmc1_pins_sdr25>;
+ pinctrl-4 = <&mmc1_pins_sdr50>;
+ pinctrl-5 = <&mmc1_pins_ddr50 &mmc1_iodelay_ddr_rev20_conf>;
+ pinctrl-6 = <&mmc1_pins_sdr104 &mmc1_iodelay_sdr104_rev20_conf>;
+};
+
+&mmc2 {
+ pinctrl-names = "default", "hs", "ddr_1_8v";
+ pinctrl-0 = <&mmc2_pins_default>;
+ pinctrl-1 = <&mmc2_pins_hs>;
+ pinctrl-2 = <&mmc2_pins_ddr_rev20>;
+};
+
&omap_dwc3_2 {
extcon = <&extcon_usb2>;
};
@@ -76,18 +95,35 @@
vbus-gpio = <&gpio3 26 GPIO_ACTIVE_HIGH>;
};
-&mmc1 {
- status = "okay";
- vmmc-supply = <&v3_3d>;
- vmmc_aux-supply = <&ldo1_reg>;
- bus-width = <4>;
- cd-gpios = <&gpio6 27 0>; /* gpio 219 */
-};
-
&sn65hvs882 {
load-gpios = <&gpio3 19 GPIO_ACTIVE_LOW>;
};
-&pcie1 {
+&pcie1_rc {
+ status = "okay";
gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
};
+
+&pcie1_ep {
+ gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
+};
+
+&mailbox5 {
+ status = "okay";
+ mbox_ipu1_ipc3x: mbox_ipu1_ipc3x {
+ status = "okay";
+ };
+ mbox_dsp1_ipc3x: mbox_dsp1_ipc3x {
+ status = "okay";
+ };
+};
+
+&mailbox6 {
+ status = "okay";
+ mbox_ipu2_ipc3x: mbox_ipu2_ipc3x {
+ status = "okay";
+ };
+ mbox_dsp2_ipc3x: mbox_dsp2_ipc3x {
+ status = "okay";
+ };
+};
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi
index 585d792a8fdd..49aeecd312b4 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi
+++ b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi
@@ -9,6 +9,7 @@
#include "dra74x.dtsi"
#include "am57xx-commercial-grade.dtsi"
+#include "dra74x-mmc-iodelay.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
@@ -166,34 +167,6 @@
};
};
-&dra7_pmx_core {
- mmc1_pins_default: mmc1_pins_default {
- pinctrl-single,pins = <
- DRA7XX_CORE_IOPAD(0x376c, PIN_INPUT | MUX_MODE14) /* mmc1sdcd.gpio219 */
- DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_clk.clk */
- DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_cmd.cmd */
- DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat0.dat0 */
- DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat1.dat1 */
- DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat2.dat2 */
- DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat3.dat3 */
- >;
- };
-
- mmc2_pins_default: mmc2_pins_default {
- pinctrl-single,pins = <
- DRA7XX_CORE_IOPAD(0x349c, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a23.mmc2_clk */
- DRA7XX_CORE_IOPAD(0x34b0, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_cs1.mmc2_cmd */
- DRA7XX_CORE_IOPAD(0x34a0, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a24.mmc2_dat0 */
- DRA7XX_CORE_IOPAD(0x34a4, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a25.mmc2_dat1 */
- DRA7XX_CORE_IOPAD(0x34a8, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a26.mmc2_dat2 */
- DRA7XX_CORE_IOPAD(0x34ac, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a27.mmc2_dat3 */
- DRA7XX_CORE_IOPAD(0x348c, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a19.mmc2_dat4 */
- DRA7XX_CORE_IOPAD(0x3490, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a20.mmc2_dat5 */
- DRA7XX_CORE_IOPAD(0x3494, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a21.mmc2_dat6 */
- DRA7XX_CORE_IOPAD(0x3498, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */
- >;
- };
-};
&i2c1 {
status = "okay";
clock-frequency = <400000>;
@@ -388,7 +361,7 @@
};
eeprom: eeprom@50 {
- compatible = "at,24c32";
+ compatible = "atmel,24c32";
reg = <0x50>;
};
};
@@ -570,7 +543,12 @@
};
};
-&pcie1 {
+&pcie1_rc {
+ status = "ok";
+ gpios = <&gpio2 8 GPIO_ACTIVE_LOW>;
+};
+
+&pcie1_ep {
gpios = <&gpio2 8 GPIO_ACTIVE_LOW>;
};
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts b/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts
index 39a92aff0a0d..5a77b334923d 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts
+++ b/arch/arm/boot/dts/am57xx-beagle-x15-revb1.dts
@@ -19,8 +19,23 @@
};
&mmc1 {
+ pinctrl-names = "default", "hs", "sdr12", "sdr25", "sdr50", "ddr50", "sdr104";
+ pinctrl-0 = <&mmc1_pins_default>;
+ pinctrl-1 = <&mmc1_pins_hs>;
+ pinctrl-2 = <&mmc1_pins_sdr12>;
+ pinctrl-3 = <&mmc1_pins_sdr25>;
+ pinctrl-4 = <&mmc1_pins_sdr50>;
+ pinctrl-5 = <&mmc1_pins_ddr50 &mmc1_iodelay_ddr_rev11_conf>;
+ pinctrl-6 = <&mmc1_pins_sdr104 &mmc1_iodelay_sdr104_rev11_conf>;
vmmc-supply = <&vdd_3v3>;
- vmmc-aux-supply = <&ldo1_reg>;
+ vqmmc-supply = <&ldo1_reg>;
+};
+
+&mmc2 {
+ pinctrl-names = "default", "hs", "ddr_1_8v";
+ pinctrl-0 = <&mmc2_pins_default>;
+ pinctrl-1 = <&mmc2_pins_hs>;
+ pinctrl-2 = <&mmc2_pins_ddr_3_3v_rev11 &mmc2_iodelay_ddr_3_3v_rev11_conf>;
};
/* errata i880 "Ethernet RGMII2 Limited to 10/100 Mbps" */
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15-revc.dts b/arch/arm/boot/dts/am57xx-beagle-x15-revc.dts
new file mode 100644
index 000000000000..17c41da3b55f
--- /dev/null
+++ b/arch/arm/boot/dts/am57xx-beagle-x15-revc.dts
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2014-2017 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "am57xx-beagle-x15-common.dtsi"
+
+/ {
+ model = "TI AM5728 BeagleBoard-X15 rev C";
+};
+
+&tpd12s015 {
+ gpios = <&gpio7 10 GPIO_ACTIVE_HIGH>, /* gpio7_10, CT CP HPD */
+ <&gpio2 30 GPIO_ACTIVE_HIGH>, /* gpio2_30, LS OE */
+ <&gpio7 12 GPIO_ACTIVE_HIGH>; /* gpio7_12/sp1_cs2, HPD */
+};
+
+&mmc1 {
+ pinctrl-names = "default", "hs", "sdr12", "sdr25", "sdr50", "ddr50", "sdr104";
+ pinctrl-0 = <&mmc1_pins_default>;
+ pinctrl-1 = <&mmc1_pins_hs>;
+ pinctrl-2 = <&mmc1_pins_sdr12>;
+ pinctrl-3 = <&mmc1_pins_sdr25>;
+ pinctrl-4 = <&mmc1_pins_sdr50>;
+ pinctrl-5 = <&mmc1_pins_ddr50 &mmc1_iodelay_ddr_rev20_conf>;
+ pinctrl-6 = <&mmc1_pins_sdr104 &mmc1_iodelay_sdr104_rev20_conf>;
+ vmmc-supply = <&vdd_3v3>;
+ vqmmc-supply = <&ldo1_reg>;
+};
+
+&mmc2 {
+ pinctrl-names = "default", "hs", "ddr_1_8v";
+ pinctrl-0 = <&mmc2_pins_default>;
+ pinctrl-1 = <&mmc2_pins_hs>;
+ pinctrl-2 = <&mmc2_pins_ddr_rev20>;
+};
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts
index 19a60a11c198..d6689106d2a8 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
+++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts
@@ -20,9 +20,20 @@
};
&mmc1 {
+ pinctrl-names = "default", "hs";
+ pinctrl-0 = <&mmc1_pins_default>;
+ pinctrl-1 = <&mmc1_pins_hs>;
+
vmmc-supply = <&ldo1_reg>;
};
+&mmc2 {
+ pinctrl-names = "default", "hs", "ddr_1_8v";
+ pinctrl-0 = <&mmc2_pins_default>;
+ pinctrl-1 = <&mmc2_pins_hs>;
+ pinctrl-2 = <&mmc2_pins_ddr_3_3v_rev11 &mmc2_iodelay_ddr_3_3v_rev11_conf>;
+};
+
/* errata i880 "Ethernet RGMII2 Limited to 10/100 Mbps" */
&phy1 {
max-speed = <100>;
diff --git a/arch/arm/boot/dts/am57xx-idk-common.dtsi b/arch/arm/boot/dts/am57xx-idk-common.dtsi
index c536b2f5389f..97aa8e6a56da 100644
--- a/arch/arm/boot/dts/am57xx-idk-common.dtsi
+++ b/arch/arm/boot/dts/am57xx-idk-common.dtsi
@@ -399,6 +399,14 @@
dr_mode = "peripheral";
};
+&mmc1 {
+ status = "okay";
+ vmmc-supply = <&v3_3d>;
+ vqmmc-supply = <&ldo1_reg>;
+ bus-width = <4>;
+ cd-gpios = <&gpio6 27 GPIO_ACTIVE_LOW>; /* gpio 219 */
+};
+
&mmc2 {
status = "okay";
vmmc-supply = <&v3_3d>;
diff --git a/arch/arm/boot/dts/animeo_ip.dts b/arch/arm/boot/dts/animeo_ip.dts
index 9cc372b9fb9b..26ade8c0a960 100644
--- a/arch/arm/boot/dts/animeo_ip.dts
+++ b/arch/arm/boot/dts/animeo_ip.dts
@@ -83,25 +83,44 @@
};
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "soft";
- nand-on-flash-bbt;
+ ebi: ebi@10000000 {
status = "okay";
- barebox@0 {
- label = "barebox";
- reg = <0x0 0x58000>;
- };
-
- u_boot_env@58000 {
- label = "u_boot_env";
- reg = <0x58000 0x8000>;
- };
-
- ubi@60000 {
- label = "ubi";
- reg = <0x60000 0x1FA0000>;
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_cs &pinctrl_nand_rb>;
+ pinctrl-names = "default";
+
+ nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ rb-gpios = <&pioC 13 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&pioC 14 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "soft";
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ barebox@0 {
+ label = "barebox";
+ reg = <0x0 0x58000>;
+ };
+
+ u_boot_env@58000 {
+ label = "u_boot_env";
+ reg = <0x58000 0x8000>;
+ };
+
+ ubi@60000 {
+ label = "ubi";
+ reg = <0x60000 0x1FA0000>;
+ };
+ };
+ };
};
};
diff --git a/arch/arm/boot/dts/armada-370.dtsi b/arch/arm/boot/dts/armada-370.dtsi
index cc011c8bc36b..b1cf5a26f3c2 100644
--- a/arch/arm/boot/dts/armada-370.dtsi
+++ b/arch/arm/boot/dts/armada-370.dtsi
@@ -72,7 +72,7 @@
reg = <MBUS_ID(0x01, 0xe0) 0 0x100000>;
};
- pciec: pcie-controller@82000000 {
+ pciec: pcie@82000000 {
compatible = "marvell,armada-370-pcie";
status = "disabled";
device_type = "pci";
@@ -100,6 +100,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x1 0 1 0
0x81000000 0 0 0x81000000 0x1 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 58>;
marvell,pcie-port = <0>;
@@ -117,6 +118,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x2 0 1 0
0x81000000 0 0 0x81000000 0x2 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 62>;
marvell,pcie-port = <1>;
@@ -137,29 +139,38 @@
};
gpio0: gpio@18100 {
- compatible = "marvell,orion-gpio";
- reg = <0x18100 0x40>;
+ compatible = "marvell,armada-370-gpio",
+ "marvell,orion-gpio";
+ reg = <0x18100 0x40>, <0x181c0 0x08>;
+ reg-names = "gpio", "pwm";
ngpios = <32>;
gpio-controller;
#gpio-cells = <2>;
+ #pwm-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <82>, <83>, <84>, <85>;
+ clocks = <&coreclk 0>;
};
gpio1: gpio@18140 {
- compatible = "marvell,orion-gpio";
- reg = <0x18140 0x40>;
+ compatible = "marvell,armada-370-gpio",
+ "marvell,orion-gpio";
+ reg = <0x18140 0x40>, <0x181c8 0x08>;
+ reg-names = "gpio", "pwm";
ngpios = <32>;
gpio-controller;
#gpio-cells = <2>;
+ #pwm-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <87>, <88>, <89>, <90>;
+ clocks = <&coreclk 0>;
};
gpio2: gpio@18180 {
- compatible = "marvell,orion-gpio";
+ compatible = "marvell,armada-370-gpio",
+ "marvell,orion-gpio";
reg = <0x18180 0x40>;
ngpios = <2>;
gpio-controller;
diff --git a/arch/arm/boot/dts/armada-375.dtsi b/arch/arm/boot/dts/armada-375.dtsi
index 50c5e8417802..7225c7ce9a8d 100644
--- a/arch/arm/boot/dts/armada-375.dtsi
+++ b/arch/arm/boot/dts/armada-375.dtsi
@@ -582,7 +582,7 @@
};
};
- pciec: pcie-controller@82000000 {
+ pciec: pcie@82000000 {
compatible = "marvell,armada-370-pcie";
status = "disabled";
device_type = "pci";
@@ -610,6 +610,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x1 0 1 0
0x81000000 0 0 0x81000000 0x1 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &gic GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
marvell,pcie-port = <0>;
@@ -627,6 +628,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x2 0 1 0
0x81000000 0 0 0x81000000 0x2 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &gic GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
marvell,pcie-port = <0>;
diff --git a/arch/arm/boot/dts/armada-380.dtsi b/arch/arm/boot/dts/armada-380.dtsi
index e392f6036f39..132596fd0860 100644
--- a/arch/arm/boot/dts/armada-380.dtsi
+++ b/arch/arm/boot/dts/armada-380.dtsi
@@ -71,7 +71,7 @@
};
};
- pcie-controller {
+ pcie {
compatible = "marvell,armada-370-pcie";
status = "disabled";
device_type = "pci";
@@ -104,6 +104,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x1 0 1 0
0x81000000 0 0 0x81000000 0x1 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &gic GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
marvell,pcie-port = <0>;
@@ -122,6 +123,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x2 0 1 0
0x81000000 0 0 0x81000000 0x2 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &gic GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
marvell,pcie-port = <1>;
@@ -140,6 +142,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x3 0 1 0
0x81000000 0 0 0x81000000 0x3 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &gic GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
marvell,pcie-port = <2>;
diff --git a/arch/arm/boot/dts/armada-385-db-ap.dts b/arch/arm/boot/dts/armada-385-db-ap.dts
index db5b9f6b615d..25d2d720dc0e 100644
--- a/arch/arm/boot/dts/armada-385-db-ap.dts
+++ b/arch/arm/boot/dts/armada-385-db-ap.dts
@@ -209,7 +209,7 @@
status = "okay";
};
- pcie-controller {
+ pcie {
status = "okay";
/*
diff --git a/arch/arm/boot/dts/armada-385-linksys-caiman.dts b/arch/arm/boot/dts/armada-385-linksys-caiman.dts
index f3cee918d285..ee669ae61011 100644
--- a/arch/arm/boot/dts/armada-385-linksys-caiman.dts
+++ b/arch/arm/boot/dts/armada-385-linksys-caiman.dts
@@ -44,71 +44,128 @@
model = "Linksys WRT1200AC";
compatible = "linksys,caiman", "linksys,armada385", "marvell,armada385",
"marvell,armada380";
+};
+
+&expander0 {
+ wan_amber@0 {
+ label = "caiman:amber:wan";
+ reg = <0x0>;
+ };
+
+ wan_white@1 {
+ label = "caiman:white:wan";
+ reg = <0x1>;
+ };
+
+ wlan_2g@2 {
+ label = "caiman:white:wlan_2g";
+ reg = <0x2>;
+ };
+
+ wlan_5g@3 {
+ label = "caiman:white:wlan_5g";
+ reg = <0x3>;
+ };
+
+ usb2@5 {
+ label = "caiman:white:usb2";
+ reg = <0x5>;
+ };
+
+ usb3_1@6 {
+ label = "caiman:white:usb3_1";
+ reg = <0x6>;
+ };
+
+ usb3_2@7 {
+ label = "caiman:white:usb3_2";
+ reg = <0x7>;
+ };
+
+ wps_white@8 {
+ label = "caiman:white:wps";
+ reg = <0x8>;
+ };
+
+ wps_amber@9 {
+ label = "caiman:amber:wps";
+ reg = <0x9>;
+ };
+};
+
+&gpio_leds {
+ power {
+ label = "caiman:white:power";
+ };
+
+ sata {
+ label = "caiman:white:sata";
+ };
+};
+
+&nand {
+ /* 128MiB */
+
+ partition@0 {
+ label = "u-boot";
+ reg = <0x0000000 0x200000>; /* 2MiB */
+ read-only;
+ };
+
+ partition@100000 {
+ label = "u_env";
+ reg = <0x200000 0x40000>; /* 256KiB */
+ };
+
+ partition@140000 {
+ label = "s_env";
+ reg = <0x240000 0x40000>; /* 256KiB */
+ };
+
+ partition@900000 {
+ label = "devinfo";
+ reg = <0x900000 0x100000>; /* 1MiB */
+ read-only;
+ };
+
+ /* kernel1 overlaps with rootfs1 by design */
+ partition@a00000 {
+ label = "kernel1";
+ reg = <0xa00000 0x2800000>; /* 40MiB */
+ };
+
+ partition@1000000 {
+ label = "rootfs1";
+ reg = <0x1000000 0x2200000>; /* 34MiB */
+ };
+
+ /* kernel2 overlaps with rootfs2 by design */
+ partition@3200000 {
+ label = "kernel2";
+ reg = <0x3200000 0x2800000>; /* 40MiB */
+ };
+
+ partition@3800000 {
+ label = "rootfs2";
+ reg = <0x3800000 0x2200000>; /* 34MiB */
+ };
+
+ /*
+ * 38MiB, last MiB is for the BBT, not writable
+ */
+ partition@5a00000 {
+ label = "syscfg";
+ reg = <0x5a00000 0x2600000>;
+ };
- soc {
- internal-regs{
- i2c@11000 {
-
- pca9635@68 {
- #address-cells = <1>;
- #size-cells = <0>;
-
- wan_amber@0 {
- label = "caiman:amber:wan";
- reg = <0x0>;
- };
-
- wan_white@1 {
- label = "caiman:white:wan";
- reg = <0x1>;
- };
-
- wlan_2g@2 {
- label = "caiman:white:wlan_2g";
- reg = <0x2>;
- };
-
- wlan_5g@3 {
- label = "caiman:white:wlan_5g";
- reg = <0x3>;
- };
-
- usb2@5 {
- label = "caiman:white:usb2";
- reg = <0x5>;
- };
-
- usb3_1@6 {
- label = "caiman:white:usb3_1";
- reg = <0x6>;
- };
-
- usb3_2@7 {
- label = "caiman:white:usb3_2";
- reg = <0x7>;
- };
-
- wps_white@8 {
- label = "caiman:white:wps";
- reg = <0x8>;
- };
-
- wps_amber@9 {
- label = "caiman:amber:wps";
- reg = <0x9>;
- };
- };
- };
- };
- };
-
- gpio-leds {
- power {
- label = "caiman:white:power";
- };
-
- sata {
- label = "caiman:white:sata";
- };
+ /*
+ * Unused area between "s_env" and "devinfo".
+ * Moved here because otherwise the renumbered
+ * partitions would break the bootloader
+ * supplied bootargs
+ */
+ partition@180000 {
+ label = "unused_area";
+ reg = <0x280000 0x680000>; /* 6.5MiB */
};
};
diff --git a/arch/arm/boot/dts/armada-385-linksys-cobra.dts b/arch/arm/boot/dts/armada-385-linksys-cobra.dts
index 111071860559..5169ca89c55a 100644
--- a/arch/arm/boot/dts/armada-385-linksys-cobra.dts
+++ b/arch/arm/boot/dts/armada-385-linksys-cobra.dts
@@ -44,71 +44,128 @@
model = "Linksys WRT1900ACv2";
compatible = "linksys,cobra", "linksys,armada385", "marvell,armada385",
"marvell,armada380";
+};
+
+&expander0 {
+ wan_amber@0 {
+ label = "cobra:amber:wan";
+ reg = <0x0>;
+ };
+
+ wan_white@1 {
+ label = "cobra:white:wan";
+ reg = <0x1>;
+ };
+
+ wlan_2g@2 {
+ label = "cobra:white:wlan_2g";
+ reg = <0x2>;
+ };
+
+ wlan_5g@3 {
+ label = "cobra:white:wlan_5g";
+ reg = <0x3>;
+ };
+
+ usb2@5 {
+ label = "cobra:white:usb2";
+ reg = <0x5>;
+ };
+
+ usb3_1@6 {
+ label = "cobra:white:usb3_1";
+ reg = <0x6>;
+ };
+
+ usb3_2@7 {
+ label = "cobra:white:usb3_2";
+ reg = <0x7>;
+ };
+
+ wps_white@8 {
+ label = "cobra:white:wps";
+ reg = <0x8>;
+ };
+
+ wps_amber@9 {
+ label = "cobra:amber:wps";
+ reg = <0x9>;
+ };
+};
+
+&gpio_leds {
+ power {
+ label = "cobra:white:power";
+ };
+
+ sata {
+ label = "cobra:white:sata";
+ };
+};
+
+&nand {
+ /* 128MiB */
+
+ partition@0 {
+ label = "u-boot";
+ reg = <0x0000000 0x200000>; /* 2MiB */
+ read-only;
+ };
+
+ partition@100000 {
+ label = "u_env";
+ reg = <0x200000 0x40000>; /* 256KiB */
+ };
+
+ partition@140000 {
+ label = "s_env";
+ reg = <0x240000 0x40000>; /* 256KiB */
+ };
+
+ partition@900000 {
+ label = "devinfo";
+ reg = <0x900000 0x100000>; /* 1MiB */
+ read-only;
+ };
+
+ /* kernel1 overlaps with rootfs1 by design */
+ partition@a00000 {
+ label = "kernel1";
+ reg = <0xa00000 0x2800000>; /* 40MiB */
+ };
+
+ partition@1000000 {
+ label = "rootfs1";
+ reg = <0x1000000 0x2200000>; /* 34MiB */
+ };
+
+ /* kernel2 overlaps with rootfs2 by design */
+ partition@3200000 {
+ label = "kernel2";
+ reg = <0x3200000 0x2800000>; /* 40MiB */
+ };
+
+ partition@3800000 {
+ label = "rootfs2";
+ reg = <0x3800000 0x2200000>; /* 34MiB */
+ };
+
+ /*
+ * 38MiB, last MiB is for the BBT, not writable
+ */
+ partition@5a00000 {
+ label = "syscfg";
+ reg = <0x5a00000 0x2600000>;
+ };
- soc {
- internal-regs{
- i2c@11000 {
-
- pca9635@68 {
- #address-cells = <1>;
- #size-cells = <0>;
-
- wan_amber@0 {
- label = "cobra:amber:wan";
- reg = <0x0>;
- };
-
- wan_white@1 {
- label = "cobra:white:wan";
- reg = <0x1>;
- };
-
- wlan_2g@2 {
- label = "cobra:white:wlan_2g";
- reg = <0x2>;
- };
-
- wlan_5g@3 {
- label = "cobra:white:wlan_5g";
- reg = <0x3>;
- };
-
- usb2@5 {
- label = "cobra:white:usb2";
- reg = <0x5>;
- };
-
- usb3_1@6 {
- label = "cobra:white:usb3_1";
- reg = <0x6>;
- };
-
- usb3_2@7 {
- label = "cobra:white:usb3_2";
- reg = <0x7>;
- };
-
- wps_white@8 {
- label = "cobra:white:wps";
- reg = <0x8>;
- };
-
- wps_amber@9 {
- label = "cobra:amber:wps";
- reg = <0x9>;
- };
- };
- };
- };
- };
-
- gpio-leds {
- power {
- label = "cobra:white:power";
- };
-
- sata {
- label = "cobra:white:sata";
- };
+ /*
+ * Unused area between "s_env" and "devinfo".
+ * Moved here because otherwise the renumbered
+ * partitions would break the bootloader
+ * supplied bootargs
+ */
+ partition@180000 {
+ label = "unused_area";
+ reg = <0x280000 0x680000>; /* 6.5MiB */
};
};
diff --git a/arch/arm/boot/dts/armada-385-linksys-rango.dts b/arch/arm/boot/dts/armada-385-linksys-rango.dts
new file mode 100644
index 000000000000..da8a0f3d432b
--- /dev/null
+++ b/arch/arm/boot/dts/armada-385-linksys-rango.dts
@@ -0,0 +1,203 @@
+/*
+ * Device Tree file for the Linksys WRT3200ACM (Rango)
+ *
+ * Copyright (C) 2016 Imre Kaloz <kaloz@openwrt.org>
+ *
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without
+ * any warranty of any kind, whether express or implied.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include "armada-385-linksys.dtsi"
+
+/ {
+ model = "Linksys WRT3200ACM";
+ compatible = "linksys,rango", "linksys,armada385", "marvell,armada385",
+ "marvell,armada380";
+};
+
+&expander0 {
+ wan_amber@0 {
+ label = "rango:amber:wan";
+ reg = <0x0>;
+ };
+
+ wan_white@1 {
+ label = "rango:white:wan";
+ reg = <0x1>;
+ };
+
+ usb2@5 {
+ label = "rango:white:usb2";
+ reg = <0x5>;
+ };
+
+ usb3_1@6 {
+ label = "rango:white:usb3_1";
+ reg = <0x6>;
+ };
+
+ usb3_2@7 {
+ label = "rango:white:usb3_2";
+ reg = <0x7>;
+ };
+
+ wps_white@8 {
+ label = "rango:white:wps";
+ reg = <0x8>;
+ };
+
+ wps_amber@9 {
+ label = "rango:amber:wps";
+ reg = <0x9>;
+ };
+};
+
+&gpio_leds {
+ power {
+ gpios = <&gpio1 24 GPIO_ACTIVE_HIGH>;
+ label = "rango:white:power";
+ };
+
+ sata {
+ gpios = <&gpio0 21 GPIO_ACTIVE_LOW>;
+ label = "rango:white:sata";
+ };
+
+ wlan_2g {
+ gpios = <&gpio1 13 GPIO_ACTIVE_LOW>;
+ label = "rango:white:wlan_2g";
+ };
+
+ wlan_5g {
+ gpios = <&gpio1 14 GPIO_ACTIVE_LOW>;
+ label = "rango:white:wlan_5g";
+ };
+};
+
+&gpio_leds_pins {
+ marvell,pins = "mpp21", "mpp45", "mpp46", "mpp56";
+};
+
+&nand {
+ /* AMD/Spansion S34ML02G2 256MiB, OEM Layout */
+
+ partition@0 {
+ label = "u-boot";
+ reg = <0x0000000 0x200000>; /* 2MiB */
+ read-only;
+ };
+
+ partition@200000 {
+ label = "u_env";
+ reg = <0x200000 0x20000>; /* 128KiB */
+ };
+
+ partition@220000 {
+ label = "s_env";
+ reg = <0x220000 0x40000>; /* 256KiB */
+ };
+
+ partition@7e0000 {
+ label = "devinfo";
+ reg = <0x7e0000 0x40000>; /* 256KiB */
+ read-only;
+ };
+
+ partition@820000 {
+ label = "sysdiag";
+ reg = <0x820000 0x1e0000>; /* 1920KiB */
+ read-only;
+ };
+
+ /* kernel1 overlaps with rootfs1 by design */
+ partition@a00000 {
+ label = "kernel1";
+ reg = <0xa00000 0x5000000>; /* 80MiB */
+ };
+
+ partition@1000000 {
+ label = "rootfs1";
+ reg = <0x1000000 0x4a00000>; /* 74MiB */
+ };
+
+ /* kernel2 overlaps with rootfs2 by design */
+ partition@5a00000 {
+ label = "kernel2";
+ reg = <0x5a00000 0x5000000>; /* 80MiB */
+ };
+
+ partition@6000000 {
+ label = "rootfs2";
+ reg = <0x6000000 0x4a00000>; /* 74MiB */
+ };
+
+ /*
+ * 86MiB, last MiB is for the BBT, not writable
+ */
+ partition@aa00000 {
+ label = "syscfg";
+ reg = <0xaa00000 0x5600000>;
+ };
+
+ /*
+ * Unused area between "s_env" and "devinfo".
+ * Moved here because otherwise the renumbered
+ * partitions would break the bootloader
+ * supplied bootargs
+ */
+ partition@180000 {
+ label = "unused_area";
+ reg = <0x260000 0x5c0000>; /* 5.75MiB */
+ };
+};
+
+&sdhci {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdhci_pins>;
+ no-1-8-v;
+ non-removable;
+ wp-inverted;
+ bus-width = <8>;
+ status = "okay";
+};
+
+&usb3_1_vbus {
+ gpio = <&gpio1 12 GPIO_ACTIVE_HIGH>;
+};
+
+&usb3_1_vbus_pins {
+ marvell,pins = "mpp44";
+};
diff --git a/arch/arm/boot/dts/armada-385-linksys-shelby.dts b/arch/arm/boot/dts/armada-385-linksys-shelby.dts
index c7a8ddd7f9a5..94aa35bc0bff 100644
--- a/arch/arm/boot/dts/armada-385-linksys-shelby.dts
+++ b/arch/arm/boot/dts/armada-385-linksys-shelby.dts
@@ -44,71 +44,128 @@
model = "Linksys WRT1900ACS";
compatible = "linksys,shelby", "linksys,armada385", "marvell,armada385",
"marvell,armada380";
+};
+
+&expander0 {
+ wan_amber@0 {
+ label = "shelby:amber:wan";
+ reg = <0x0>;
+ };
+
+ wan_white@1 {
+ label = "shelby:white:wan";
+ reg = <0x1>;
+ };
+
+ wlan_2g@2 {
+ label = "shelby:white:wlan_2g";
+ reg = <0x2>;
+ };
+
+ wlan_5g@3 {
+ label = "shelby:white:wlan_5g";
+ reg = <0x3>;
+ };
+
+ usb2@5 {
+ label = "shelby:white:usb2";
+ reg = <0x5>;
+ };
+
+ usb3_1@6 {
+ label = "shelby:white:usb3_1";
+ reg = <0x6>;
+ };
+
+ usb3_2@7 {
+ label = "shelby:white:usb3_2";
+ reg = <0x7>;
+ };
+
+ wps_white@8 {
+ label = "shelby:white:wps";
+ reg = <0x8>;
+ };
+
+ wps_amber@9 {
+ label = "shelby:amber:wps";
+ reg = <0x9>;
+ };
+};
+
+&gpio_leds {
+ power {
+ label = "shelby:white:power";
+ };
+
+ sata {
+ label = "shelby:white:sata";
+ };
+};
+
+&nand {
+ /* 128MiB */
+
+ partition@0 {
+ label = "u-boot";
+ reg = <0x0000000 0x200000>; /* 2MiB */
+ read-only;
+ };
+
+ partition@100000 {
+ label = "u_env";
+ reg = <0x200000 0x40000>; /* 256KiB */
+ };
+
+ partition@140000 {
+ label = "s_env";
+ reg = <0x240000 0x40000>; /* 256KiB */
+ };
+
+ partition@900000 {
+ label = "devinfo";
+ reg = <0x900000 0x100000>; /* 1MiB */
+ read-only;
+ };
+
+ /* kernel1 overlaps with rootfs1 by design */
+ partition@a00000 {
+ label = "kernel1";
+ reg = <0xa00000 0x2800000>; /* 40MiB */
+ };
+
+ partition@1000000 {
+ label = "rootfs1";
+ reg = <0x1000000 0x2200000>; /* 34MiB */
+ };
+
+ /* kernel2 overlaps with rootfs2 by design */
+ partition@3200000 {
+ label = "kernel2";
+ reg = <0x3200000 0x2800000>; /* 40MiB */
+ };
+
+ partition@3800000 {
+ label = "rootfs2";
+ reg = <0x3800000 0x2200000>; /* 34MiB */
+ };
+
+ /*
+ * 38MiB, last MiB is for the BBT, not writable
+ */
+ partition@5a00000 {
+ label = "syscfg";
+ reg = <0x5a00000 0x2600000>;
+ };
- soc {
- internal-regs{
- i2c@11000 {
-
- pca9635@68 {
- #address-cells = <1>;
- #size-cells = <0>;
-
- wan_amber@0 {
- label = "shelby:amber:wan";
- reg = <0x0>;
- };
-
- wan_white@1 {
- label = "shelby:white:wan";
- reg = <0x1>;
- };
-
- wlan_2g@2 {
- label = "shelby:white:wlan_2g";
- reg = <0x2>;
- };
-
- wlan_5g@3 {
- label = "shelby:white:wlan_5g";
- reg = <0x3>;
- };
-
- usb2@5 {
- label = "shelby:white:usb2";
- reg = <0x5>;
- };
-
- usb3_1@6 {
- label = "shelby:white:usb3_1";
- reg = <0x6>;
- };
-
- usb3_2@7 {
- label = "shelby:white:usb3_2";
- reg = <0x7>;
- };
-
- wps_white@8 {
- label = "shelby:white:wps";
- reg = <0x8>;
- };
-
- wps_amber@9 {
- label = "shelby:amber:wps";
- reg = <0x9>;
- };
- };
- };
- };
- };
-
- gpio-leds {
- power {
- label = "shelby:white:power";
- };
-
- sata {
- label = "shelby:white:sata";
- };
+ /*
+ * Unused area between "s_env" and "devinfo".
+ * Moved here because otherwise the renumbered
+ * partitions would break the bootloader
+ * supplied bootargs
+ */
+ partition@180000 {
+ label = "unused_area";
+ reg = <0x280000 0x680000>; /* 6.5MiB */
};
};
diff --git a/arch/arm/boot/dts/armada-385-linksys.dtsi b/arch/arm/boot/dts/armada-385-linksys.dtsi
index 2306c45685b1..e1f355ffc8f7 100644
--- a/arch/arm/boot/dts/armada-385-linksys.dtsi
+++ b/arch/arm/boot/dts/armada-385-linksys.dtsi
@@ -52,7 +52,7 @@
memory {
device_type = "memory";
- reg = <0x00000000 0x20000000>; /* 512 MB */
+ reg = <0x00000000 0x20000000>; /* 512 MiB */
};
soc {
@@ -61,255 +61,45 @@
MBUS_ID(0x09, 0x19) 0 0xf1100000 0x10000
MBUS_ID(0x09, 0x15) 0 0xf1110000 0x10000
MBUS_ID(0x0c, 0x04) 0 0xf1200000 0x100000>;
-
- internal-regs {
- i2c@11000 {
- pinctrl-names = "default";
- pinctrl-0 = <&i2c0_pins>;
- status = "okay";
-
- tmp421@4c {
- compatible = "ti,tmp421";
- reg = <0x4c>;
- };
-
- pca9635@68 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "nxp,pca9635";
- reg = <0x68>;
- };
- };
-
- /* J10: VCC, NC, RX, NC, TX, GND */
- serial@12000 {
- status = "okay";
- };
-
- ethernet@70000 {
- status = "okay";
- phy-mode = "rgmii-id";
- buffer-manager = <&bm>;
- bm,pool-long = <2>;
- bm,pool-short = <3>;
- fixed-link {
- speed = <1000>;
- full-duplex;
- };
- };
-
- ethernet@34000 {
- status = "okay";
- phy-mode = "sgmii";
- buffer-manager = <&bm>;
- bm,pool-long = <0>;
- bm,pool-short = <1>;
- fixed-link {
- speed = <1000>;
- full-duplex;
- };
- };
-
- mdio@72004 {
- status = "okay";
-
- switch@0 {
- compatible = "marvell,mv88e6085";
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- label = "lan4";
- };
-
- port@1 {
- reg = <1>;
- label = "lan3";
- };
-
- port@2 {
- reg = <2>;
- label = "lan2";
- };
-
- port@3 {
- reg = <3>;
- label = "lan1";
- };
-
- port@4 {
- reg = <4>;
- label = "wan";
- };
-
- port@5 {
- reg = <5>;
- label = "cpu";
- ethernet = <&eth2>;
-
- fixed-link {
- speed = <1000>;
- full-duplex;
- };
- };
- };
- };
- };
-
- sata@a8000 {
- status = "okay";
- };
-
- bm@c8000 {
- status = "okay";
- };
-
- /* USB part of the eSATA/USB 2.0 port */
- usb@58000 {
- status = "okay";
- };
-
- usb3@f8000 {
- status = "okay";
- usb-phy = <&usb3_phy>;
- };
-
- flash@d0000 {
- status = "okay";
- num-cs = <1>;
- marvell,nand-keep-config;
- marvell,nand-enable-arbiter;
- nand-on-flash-bbt;
-
- partition@0 {
- label = "u-boot";
- reg = <0x0000000 0x200000>; /* 2MB */
- read-only;
- };
-
- partition@100000 {
- label = "u_env";
- reg = <0x200000 0x40000>; /* 256KB */
- };
-
- partition@140000 {
- label = "s_env";
- reg = <0x240000 0x40000>; /* 256KB */
- };
-
- partition@900000 {
- label = "devinfo";
- reg = <0x900000 0x100000>; /* 1MB */
- read-only;
- };
-
- /* kernel1 overlaps with rootfs1 by design */
- partition@a00000 {
- label = "kernel1";
- reg = <0xa00000 0x2800000>; /* 40MB */
- };
-
- partition@1000000 {
- label = "rootfs1";
- reg = <0x1000000 0x2200000>; /* 34MB */
- };
-
- /* kernel2 overlaps with rootfs2 by design */
- partition@3200000 {
- label = "kernel2";
- reg = <0x3200000 0x2800000>; /* 40MB */
- };
-
- partition@3800000 {
- label = "rootfs2";
- reg = <0x3800000 0x2200000>; /* 34MB */
- };
-
- /*
- * 38MB, last MB is for the BBT, not writable
- */
- partition@5a00000 {
- label = "syscfg";
- reg = <0x5a00000 0x2600000>;
- };
-
- /*
- * Unused area between "s_env" and "devinfo".
- * Moved here because otherwise the renumbered
- * partitions would break the bootloader
- * supplied bootargs
- */
- partition@180000 {
- label = "unused_area";
- reg = <0x280000 0x680000>; /* 6.5MB */
- };
- };
- };
-
- bm-bppi {
- status = "okay";
- };
-
- pcie-controller {
- status = "okay";
-
- pcie@1,0 {
- /* Marvell 88W8864, 5GHz-only */
- status = "okay";
- };
-
- pcie@2,0 {
- /* Marvell 88W8864, 2GHz-only */
- status = "okay";
- };
- };
};
- usb3_phy: usb3_phy {
+ usb3_1_phy: usb3_1-phy {
compatible = "usb-nop-xceiv";
- vcc-supply = <&reg_xhci0_vbus>;
+ vcc-supply = <&usb3_1_vbus>;
};
- reg_xhci0_vbus: xhci0-vbus {
+ usb3_1_vbus: usb3_1-vbus {
compatible = "regulator-fixed";
pinctrl-names = "default";
- pinctrl-0 = <&xhci0_vbus_pins>;
- regulator-name = "xhci0-vbus";
+ pinctrl-0 = <&usb3_1_vbus_pins>;
+ regulator-name = "usb3_1-vbus";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
enable-active-high;
gpio = <&gpio1 18 GPIO_ACTIVE_HIGH>;
};
- gpio_keys {
+ gpio_keys: gpio-keys {
compatible = "gpio-keys";
- #address-cells = <1>;
- #size-cells = <0>;
- pinctrl-0 = <&keys_pin>;
+ pinctrl-0 = <&gpio_keys_pins>;
pinctrl-names = "default";
- button@1 {
+ wps {
label = "WPS";
linux,code = <KEY_WPS_BUTTON>;
gpios = <&gpio0 24 GPIO_ACTIVE_LOW>;
};
- button@2 {
+ reset {
label = "Factory Reset Button";
linux,code = <KEY_RESTART>;
gpios = <&gpio0 29 GPIO_ACTIVE_LOW>;
};
};
- gpio-leds {
+ gpio_leds: gpio-leds {
compatible = "gpio-leds";
- pinctrl-0 = <&power_led_pin &sata_led_pin>;
+ pinctrl-0 = <&gpio_leds_pins>;
pinctrl-names = "default";
power {
@@ -323,21 +113,83 @@
linux,default-trigger = "disk-activity";
};
};
+};
- dsa@0 {
- status = "disabled";
+&ahci0 {
+ status = "okay";
+};
+
+&bm {
+ status = "okay";
+};
- compatible = "marvell,dsa";
- #address-cells = <2>;
+&bm_bppi {
+ status = "okay";
+};
+
+&eth0 {
+ status = "okay";
+ phy-mode = "rgmii-id";
+ buffer-manager = <&bm>;
+ bm,pool-long = <0>;
+ bm,pool-short = <1>;
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+};
+
+&eth2 {
+ status = "okay";
+ phy-mode = "sgmii";
+ buffer-manager = <&bm>;
+ bm,pool-long = <2>;
+ bm,pool-short = <3>;
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+};
+
+&i2c0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_pins>;
+ status = "okay";
+
+ tmp421@4c {
+ compatible = "ti,tmp421";
+ reg = <0x4c>;
+ };
+
+ expander0: pca9635@68 {
+ #address-cells = <1>;
#size-cells = <0>;
+ compatible = "nxp,pca9635";
+ reg = <0x68>;
+ };
+};
+
+&nand {
+ /* 128MiB or 256MiB */
+ status = "okay";
+ num-cs = <1>;
+ marvell,nand-keep-config;
+ marvell,nand-enable-arbiter;
+ nand-on-flash-bbt;
+};
- dsa,ethernet = <&eth2>;
- dsa,mii-bus = <&mdio>;
+&mdio {
+ status = "okay";
- switch@0 {
+ switch@0 {
+ compatible = "marvell,mv88e6085";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ ports {
#address-cells = <1>;
#size-cells = <0>;
- reg = <0x0 0>; /* MDIO address 0, switch 0 in tree */
port@0 {
reg = <0>;
@@ -367,28 +219,45 @@
port@5 {
reg = <5>;
label = "cpu";
+ ethernet = <&eth2>;
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
};
};
};
};
+&pciec {
+ status = "okay";
+};
+
+&pcie1 {
+ /* Marvell 88W8864, 5GHz-only */
+ status = "okay";
+};
+
+&pcie2 {
+ /* Marvell 88W8864, 2GHz-only */
+ status = "okay";
+};
+
&pinctrl {
- keys_pin: keys-pin {
+ gpio_keys_pins: gpio-keys-pins {
+ /* mpp24: wps, mpp29: reset */
marvell,pins = "mpp24", "mpp29";
marvell,function = "gpio";
};
- power_led_pin: power-led-pin {
- marvell,pins = "mpp55";
- marvell,function = "gpio";
- };
-
- sata_led_pin: sata-led-pin {
- marvell,pins = "mpp54";
+ gpio_leds_pins: gpio-leds-pins {
+ /* mpp54: sata, mpp55: power */
+ marvell,pins = "mpp54", "mpp55";
marvell,function = "gpio";
};
- xhci0_vbus_pins: xhci0-vbus-pins {
+ usb3_1_vbus_pins: usb3_1-vbus-pins {
marvell,pins = "mpp50";
marvell,function = "gpio";
};
@@ -397,3 +266,18 @@
&spi0 {
status = "disabled";
};
+
+&uart0 {
+ /* J10: VCC, NC, RX, NC, TX, GND */
+ status = "okay";
+};
+
+&usb0 {
+ /* USB part of the eSATA/USB 2.0 port */
+ status = "okay";
+};
+
+&usb3_1 {
+ status = "okay";
+ usb-phy = <&usb3_1_phy>;
+};
diff --git a/arch/arm/boot/dts/armada-385-turris-omnia.dts b/arch/arm/boot/dts/armada-385-turris-omnia.dts
index 28eede180e4f..06831e1e3f80 100644
--- a/arch/arm/boot/dts/armada-385-turris-omnia.dts
+++ b/arch/arm/boot/dts/armada-385-turris-omnia.dts
@@ -96,7 +96,7 @@
};
};
- pcie-controller {
+ pcie {
status = "okay";
pcie@1,0 {
@@ -171,7 +171,7 @@
/* leds device (in STM32F0) at address 0x2b */
eeprom@54 {
- compatible = "at,24c64";
+ compatible = "atmel,24c64";
reg = <0x54>;
/* The EEPROM contains data for bootloader.
diff --git a/arch/arm/boot/dts/armada-385.dtsi b/arch/arm/boot/dts/armada-385.dtsi
index 7fcc4c4885cf..74863aff01c6 100644
--- a/arch/arm/boot/dts/armada-385.dtsi
+++ b/arch/arm/boot/dts/armada-385.dtsi
@@ -70,7 +70,7 @@
};
soc {
- pciec: pcie-controller {
+ pciec: pcie {
compatible = "marvell,armada-370-pcie";
status = "disabled";
device_type = "pci";
@@ -109,6 +109,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x1 0 1 0
0x81000000 0 0 0x81000000 0x1 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &gic GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
marvell,pcie-port = <0>;
@@ -127,6 +128,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x2 0 1 0
0x81000000 0 0 0x81000000 0x2 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &gic GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
marvell,pcie-port = <1>;
@@ -145,6 +147,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x3 0 1 0
0x81000000 0 0 0x81000000 0x3 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &gic GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
marvell,pcie-port = <2>;
@@ -166,6 +169,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x4 0 1 0
0x81000000 0 0 0x81000000 0x4 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &gic GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
marvell,pcie-port = <3>;
diff --git a/arch/arm/boot/dts/armada-388-clearfog.dts b/arch/arm/boot/dts/armada-388-clearfog.dts
index 0d5f1f062275..ee7b0089eff0 100644
--- a/arch/arm/boot/dts/armada-388-clearfog.dts
+++ b/arch/arm/boot/dts/armada-388-clearfog.dts
@@ -62,7 +62,7 @@
};
};
- pcie-controller {
+ pcie {
pcie@3,0 {
/* Port 2, Lane 0. CON2, nearest CPU. */
reset-gpios = <&expander0 2 GPIO_ACTIVE_LOW>;
diff --git a/arch/arm/boot/dts/armada-388-clearfog.dtsi b/arch/arm/boot/dts/armada-388-clearfog.dtsi
index 0f5938bede53..68acfc968706 100644
--- a/arch/arm/boot/dts/armada-388-clearfog.dtsi
+++ b/arch/arm/boot/dts/armada-388-clearfog.dtsi
@@ -104,7 +104,7 @@
};
};
- pcie-controller {
+ pcie {
status = "okay";
/*
* The two PCIe units are accessible through
diff --git a/arch/arm/boot/dts/armada-388-db.dts b/arch/arm/boot/dts/armada-388-db.dts
index 1ac923826445..a4ec1fa37529 100644
--- a/arch/arm/boot/dts/armada-388-db.dts
+++ b/arch/arm/boot/dts/armada-388-db.dts
@@ -172,7 +172,7 @@
status = "okay";
};
- pcie-controller {
+ pcie {
status = "okay";
/*
* The two PCIe units are accessible through
diff --git a/arch/arm/boot/dts/armada-388-gp.dts b/arch/arm/boot/dts/armada-388-gp.dts
index 895fa6cfa15a..f503955dbd3b 100644
--- a/arch/arm/boot/dts/armada-388-gp.dts
+++ b/arch/arm/boot/dts/armada-388-gp.dts
@@ -75,7 +75,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pca0_pins>;
interrupt-parent = <&gpio0>;
- interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
+ interrupts = <18 IRQ_TYPE_LEVEL_LOW>;
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;
@@ -87,7 +87,7 @@
compatible = "nxp,pca9555";
pinctrl-names = "default";
interrupt-parent = <&gpio0>;
- interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
+ interrupts = <18 IRQ_TYPE_LEVEL_LOW>;
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;
@@ -240,7 +240,7 @@
status = "okay";
};
- pcie-controller {
+ pcie {
status = "okay";
/*
* One PCIe units is accessible through
diff --git a/arch/arm/boot/dts/armada-388-rd.dts b/arch/arm/boot/dts/armada-388-rd.dts
index af82f275eac2..9cc3ca0376b9 100644
--- a/arch/arm/boot/dts/armada-388-rd.dts
+++ b/arch/arm/boot/dts/armada-388-rd.dts
@@ -117,7 +117,7 @@
};
};
- pcie-controller {
+ pcie {
status = "okay";
/*
* One PCIe units is accessible through
diff --git a/arch/arm/boot/dts/armada-38x.dtsi b/arch/arm/boot/dts/armada-38x.dtsi
index 8b165c31de1e..4960722aab32 100644
--- a/arch/arm/boot/dts/armada-38x.dtsi
+++ b/arch/arm/boot/dts/armada-38x.dtsi
@@ -154,6 +154,13 @@
reg = <0xc000 0x58>;
};
+ timer@c200 {
+ compatible = "arm,cortex-a9-global-timer";
+ reg = <0xc200 0x20>;
+ interrupts = <GIC_PPI 11 (IRQ_TYPE_EDGE_RISING | GIC_CPU_MASK_SIMPLE(2))>;
+ clocks = <&coreclk 2>;
+ };
+
timer@c600 {
compatible = "arm,cortex-a9-twd-timer";
reg = <0xc600 0x20>;
@@ -171,7 +178,7 @@
};
i2c0: i2c@11000 {
- compatible = "marvell,mv64xxx-i2c";
+ compatible = "marvell,mv78230-a0-i2c", "marvell,mv64xxx-i2c";
reg = <0x11000 0x20>;
#address-cells = <1>;
#size-cells = <0>;
@@ -182,7 +189,7 @@
};
i2c1: i2c@11100 {
- compatible = "marvell,mv64xxx-i2c";
+ compatible = "marvell,mv78230-a0-i2c", "marvell,mv64xxx-i2c";
reg = <0x11100 0x20>;
#address-cells = <1>;
#size-cells = <0>;
@@ -312,31 +319,39 @@
};
gpio0: gpio@18100 {
- compatible = "marvell,orion-gpio";
- reg = <0x18100 0x40>;
+ compatible = "marvell,armada-370-gpio",
+ "marvell,orion-gpio";
+ reg = <0x18100 0x40>, <0x181c0 0x08>;
+ reg-names = "gpio", "pwm";
ngpios = <32>;
gpio-controller;
#gpio-cells = <2>;
+ #pwm-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&coreclk 0>;
};
gpio1: gpio@18140 {
- compatible = "marvell,orion-gpio";
- reg = <0x18140 0x40>;
+ compatible = "marvell,armada-370-gpio",
+ "marvell,orion-gpio";
+ reg = <0x18140 0x40>, <0x181c8 0x08>;
+ reg-names = "gpio", "pwm";
ngpios = <28>;
gpio-controller;
#gpio-cells = <2>;
+ #pwm-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&coreclk 0>;
};
systemc: system-controller@18200 {
diff --git a/arch/arm/boot/dts/armada-390-db.dts b/arch/arm/boot/dts/armada-390-db.dts
index 2afed2ce4741..c718a5242595 100644
--- a/arch/arm/boot/dts/armada-390-db.dts
+++ b/arch/arm/boot/dts/armada-390-db.dts
@@ -123,7 +123,7 @@
};
};
- pcie-controller {
+ pcie {
status = "okay";
/* CON30 */
diff --git a/arch/arm/boot/dts/armada-395-gp.dts b/arch/arm/boot/dts/armada-395-gp.dts
index 2cdbba804c1e..ef491b524fd6 100644
--- a/arch/arm/boot/dts/armada-395-gp.dts
+++ b/arch/arm/boot/dts/armada-395-gp.dts
@@ -139,7 +139,7 @@
};
};
- pcie-controller {
+ pcie {
status = "okay";
/*
diff --git a/arch/arm/boot/dts/armada-398-db.dts b/arch/arm/boot/dts/armada-398-db.dts
index e8604281c3c9..f0e0379f7619 100644
--- a/arch/arm/boot/dts/armada-398-db.dts
+++ b/arch/arm/boot/dts/armada-398-db.dts
@@ -118,7 +118,7 @@
};
};
- pcie-controller {
+ pcie {
status = "okay";
pcie@1,0 {
diff --git a/arch/arm/boot/dts/armada-39x.dtsi b/arch/arm/boot/dts/armada-39x.dtsi
index 60fbfd5907c7..ea657071e278 100644
--- a/arch/arm/boot/dts/armada-39x.dtsi
+++ b/arch/arm/boot/dts/armada-39x.dtsi
@@ -442,7 +442,7 @@
};
};
- pcie-controller {
+ pcie {
compatible = "marvell,armada-370-pcie";
status = "disabled";
device_type = "pci";
@@ -481,6 +481,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x1 0 1 0
0x81000000 0 0 0x81000000 0x1 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &gic GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
marvell,pcie-port = <0>;
@@ -499,6 +500,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x2 0 1 0
0x81000000 0 0 0x81000000 0x2 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &gic GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
marvell,pcie-port = <1>;
@@ -517,6 +519,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x3 0 1 0
0x81000000 0 0 0x81000000 0x3 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &gic GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
marvell,pcie-port = <2>;
@@ -538,6 +541,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x4 0 1 0
0x81000000 0 0 0x81000000 0x4 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &gic GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
marvell,pcie-port = <3>;
diff --git a/arch/arm/boot/dts/armada-xp-98dx3236.dtsi b/arch/arm/boot/dts/armada-xp-98dx3236.dtsi
index 84cc232a29e9..bdd4c7a45fbf 100644
--- a/arch/arm/boot/dts/armada-xp-98dx3236.dtsi
+++ b/arch/arm/boot/dts/armada-xp-98dx3236.dtsi
@@ -91,7 +91,7 @@
/*
* 98DX3236 has 1 x1 PCIe unit Gen2.0
*/
- pciec: pcie-controller@82000000 {
+ pciec: pcie@82000000 {
compatible = "marvell,armada-xp-pcie";
status = "disabled";
device_type = "pci";
@@ -116,6 +116,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x1 0 1 0
0x81000000 0 0 0x81000000 0x1 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 58>;
marvell,pcie-port = <0>;
@@ -311,6 +312,10 @@
reg = <0x20a00 0x2d0>, <0x21070 0x58>;
};
+&rtc {
+ status = "disabled";
+};
+
&timer {
compatible = "marvell,armada-xp-timer";
clocks = <&coreclk 2>, <&refclk>;
diff --git a/arch/arm/boot/dts/armada-xp-98dx4251.dtsi b/arch/arm/boot/dts/armada-xp-98dx4251.dtsi
index 51de91b31a9d..bc9f824020eb 100644
--- a/arch/arm/boot/dts/armada-xp-98dx4251.dtsi
+++ b/arch/arm/boot/dts/armada-xp-98dx4251.dtsi
@@ -87,4 +87,5 @@
&pp0 {
compatible = "marvell,prestera-98dx4251";
+ interrupts = <33>, <34>, <35>, <36>;
};
diff --git a/arch/arm/boot/dts/armada-xp-db.dts b/arch/arm/boot/dts/armada-xp-db.dts
index a33974254d8c..065282c21789 100644
--- a/arch/arm/boot/dts/armada-xp-db.dts
+++ b/arch/arm/boot/dts/armada-xp-db.dts
@@ -242,7 +242,7 @@
/* Port 2, Lane 0 */
status = "okay";
};
- pcie@10,0 {
+ pcie@a,0 {
/* Port 3, Lane 0 */
status = "okay";
};
diff --git a/arch/arm/boot/dts/armada-xp-gp.dts b/arch/arm/boot/dts/armada-xp-gp.dts
index d62bf7bea1df..ac9eab8ac186 100644
--- a/arch/arm/boot/dts/armada-xp-gp.dts
+++ b/arch/arm/boot/dts/armada-xp-gp.dts
@@ -227,7 +227,7 @@
/* Port 2, Lane 0 */
status = "okay";
};
- pcie@10,0 {
+ pcie@a,0 {
/* Port 3, Lane 0 */
status = "okay";
};
diff --git a/arch/arm/boot/dts/armada-xp-linksys-mamba.dts b/arch/arm/boot/dts/armada-xp-linksys-mamba.dts
index 9efcf59c9b44..6d705f518254 100644
--- a/arch/arm/boot/dts/armada-xp-linksys-mamba.dts
+++ b/arch/arm/boot/dts/armada-xp-linksys-mamba.dts
@@ -308,13 +308,11 @@
};
};
- gpio_fan {
+ pwm_fan {
/* SUNON HA4010V4-0000-C99 */
- compatible = "gpio-fan";
- gpios = <&gpio0 24 0>;
- gpio-fan,speed-map = <0 0
- 4500 1>;
+ compatible = "pwm-fan";
+ pwms = <&gpio0 24 4000>;
};
dsa {
diff --git a/arch/arm/boot/dts/armada-xp-mv78230.dtsi b/arch/arm/boot/dts/armada-xp-mv78230.dtsi
index 07c5090ecd29..129738f7973d 100644
--- a/arch/arm/boot/dts/armada-xp-mv78230.dtsi
+++ b/arch/arm/boot/dts/armada-xp-mv78230.dtsi
@@ -86,7 +86,7 @@
* configured as x4 or quad x1 lanes. One unit is
* x1 only.
*/
- pciec: pcie-controller@82000000 {
+ pciec: pcie@82000000 {
compatible = "marvell,armada-xp-pcie";
status = "disabled";
device_type = "pci";
@@ -123,6 +123,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x1 0 1 0
0x81000000 0 0 0x81000000 0x1 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 58>;
marvell,pcie-port = <0>;
@@ -140,6 +141,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x2 0 1 0
0x81000000 0 0 0x81000000 0x2 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 59>;
marvell,pcie-port = <0>;
@@ -157,6 +159,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x3 0 1 0
0x81000000 0 0 0x81000000 0x3 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 60>;
marvell,pcie-port = <0>;
@@ -174,6 +177,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x4 0 1 0
0x81000000 0 0 0x81000000 0x4 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 61>;
marvell,pcie-port = <0>;
@@ -191,6 +195,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x5 0 1 0
0x81000000 0 0 0x81000000 0x5 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 62>;
marvell,pcie-port = <1>;
@@ -202,25 +207,33 @@
internal-regs {
gpio0: gpio@18100 {
- compatible = "marvell,orion-gpio";
- reg = <0x18100 0x40>;
+ compatible = "marvell,armada-370-gpio",
+ "marvell,orion-gpio";
+ reg = <0x18100 0x40>, <0x181c0 0x08>;
+ reg-names = "gpio", "pwm";
ngpios = <32>;
gpio-controller;
#gpio-cells = <2>;
+ #pwm-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <82>, <83>, <84>, <85>;
+ clocks = <&coreclk 0>;
};
gpio1: gpio@18140 {
- compatible = "marvell,orion-gpio";
- reg = <0x18140 0x40>;
+ compatible = "marvell,armada-370-gpio",
+ "marvell,orion-gpio";
+ reg = <0x18140 0x40>, <0x181c8 0x08>;
+ reg-names = "gpio", "pwm";
ngpios = <17>;
gpio-controller;
#gpio-cells = <2>;
+ #pwm-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <87>, <88>, <89>;
+ clocks = <&coreclk 0>;
};
};
};
diff --git a/arch/arm/boot/dts/armada-xp-mv78260.dtsi b/arch/arm/boot/dts/armada-xp-mv78260.dtsi
index 64e936ae7b22..e58d597e37b9 100644
--- a/arch/arm/boot/dts/armada-xp-mv78260.dtsi
+++ b/arch/arm/boot/dts/armada-xp-mv78260.dtsi
@@ -87,7 +87,7 @@
* configured as x4 or quad x1 lanes. One unit is
* x4 only.
*/
- pciec: pcie-controller@82000000 {
+ pciec: pcie@82000000 {
compatible = "marvell,armada-xp-pcie";
status = "disabled";
device_type = "pci";
@@ -138,6 +138,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x1 0 1 0
0x81000000 0 0 0x81000000 0x1 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 58>;
marvell,pcie-port = <0>;
@@ -155,6 +156,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x2 0 1 0
0x81000000 0 0 0x81000000 0x2 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 59>;
marvell,pcie-port = <0>;
@@ -172,6 +174,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x3 0 1 0
0x81000000 0 0 0x81000000 0x3 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 60>;
marvell,pcie-port = <0>;
@@ -189,6 +192,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x4 0 1 0
0x81000000 0 0 0x81000000 0x4 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 61>;
marvell,pcie-port = <0>;
@@ -206,6 +210,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x5 0 1 0
0x81000000 0 0 0x81000000 0x5 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 62>;
marvell,pcie-port = <1>;
@@ -223,6 +228,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x6 0 1 0
0x81000000 0 0 0x81000000 0x6 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 63>;
marvell,pcie-port = <1>;
@@ -240,6 +246,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x7 0 1 0
0x81000000 0 0 0x81000000 0x7 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 64>;
marvell,pcie-port = <1>;
@@ -257,6 +264,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x8 0 1 0
0x81000000 0 0 0x81000000 0x8 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 65>;
marvell,pcie-port = <1>;
@@ -274,6 +282,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x9 0 1 0
0x81000000 0 0 0x81000000 0x9 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 99>;
marvell,pcie-port = <2>;
@@ -285,29 +294,38 @@
internal-regs {
gpio0: gpio@18100 {
- compatible = "marvell,orion-gpio";
- reg = <0x18100 0x40>;
+ compatible = "marvell,armada-370-gpio",
+ "marvell,orion-gpio";
+ reg = <0x18100 0x40>, <0x181c0 0x08>;
+ reg-names = "gpio", "pwm";
ngpios = <32>;
gpio-controller;
#gpio-cells = <2>;
+ #pwm-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <82>, <83>, <84>, <85>;
+ clocks = <&coreclk 0>;
};
gpio1: gpio@18140 {
- compatible = "marvell,orion-gpio";
- reg = <0x18140 0x40>;
+ compatible = "marvell,armada-370-gpio",
+ "marvell,orion-gpio";
+ reg = <0x18140 0x40>, <0x181c8 0x08>;
+ reg-names = "gpio", "pwm";
ngpios = <32>;
gpio-controller;
#gpio-cells = <2>;
+ #pwm-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <87>, <88>, <89>, <90>;
+ clocks = <&coreclk 0>;
};
gpio2: gpio@18180 {
- compatible = "marvell,orion-gpio";
+ compatible = "marvell,armada-370-gpio",
+ "marvell,orion-gpio";
reg = <0x18180 0x40>;
ngpios = <3>;
gpio-controller;
diff --git a/arch/arm/boot/dts/armada-xp-mv78460.dtsi b/arch/arm/boot/dts/armada-xp-mv78460.dtsi
index d1383dde43eb..a5c961cee7de 100644
--- a/arch/arm/boot/dts/armada-xp-mv78460.dtsi
+++ b/arch/arm/boot/dts/armada-xp-mv78460.dtsi
@@ -104,7 +104,7 @@
* configured as x4 or quad x1 lanes. Two units are
* x4/x1.
*/
- pciec: pcie-controller@82000000 {
+ pciec: pcie@82000000 {
compatible = "marvell,armada-xp-pcie";
status = "disabled";
device_type = "pci";
@@ -159,6 +159,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x1 0 1 0
0x81000000 0 0 0x81000000 0x1 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 58>;
marvell,pcie-port = <0>;
@@ -176,6 +177,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x2 0 1 0
0x81000000 0 0 0x81000000 0x2 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 59>;
marvell,pcie-port = <0>;
@@ -193,6 +195,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x3 0 1 0
0x81000000 0 0 0x81000000 0x3 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 60>;
marvell,pcie-port = <0>;
@@ -210,6 +213,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x4 0 1 0
0x81000000 0 0 0x81000000 0x4 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 61>;
marvell,pcie-port = <0>;
@@ -227,6 +231,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x5 0 1 0
0x81000000 0 0 0x81000000 0x5 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 62>;
marvell,pcie-port = <1>;
@@ -244,6 +249,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x6 0 1 0
0x81000000 0 0 0x81000000 0x6 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 63>;
marvell,pcie-port = <1>;
@@ -261,6 +267,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x7 0 1 0
0x81000000 0 0 0x81000000 0x7 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 64>;
marvell,pcie-port = <1>;
@@ -278,6 +285,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x8 0 1 0
0x81000000 0 0 0x81000000 0x8 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 65>;
marvell,pcie-port = <1>;
@@ -295,6 +303,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x9 0 1 0
0x81000000 0 0 0x81000000 0x9 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 99>;
marvell,pcie-port = <2>;
@@ -303,7 +312,7 @@
status = "disabled";
};
- pcie10: pcie@10,0 {
+ pcie10: pcie@a,0 {
device_type = "pci";
assigned-addresses = <0x82005000 0 0x82000 0 0x2000>;
reg = <0x5000 0 0 0 0>;
@@ -312,6 +321,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0xa 0 1 0
0x81000000 0 0 0x81000000 0xa 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &mpic 103>;
marvell,pcie-port = <3>;
@@ -323,29 +333,38 @@
internal-regs {
gpio0: gpio@18100 {
- compatible = "marvell,orion-gpio";
- reg = <0x18100 0x40>;
+ compatible = "marvell,armada-370-gpio",
+ "marvell,orion-gpio";
+ reg = <0x18100 0x40>, <0x181c0 0x08>;
+ reg-names = "gpio", "pwm";
ngpios = <32>;
gpio-controller;
#gpio-cells = <2>;
+ #pwm-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <82>, <83>, <84>, <85>;
+ clocks = <&coreclk 0>;
};
gpio1: gpio@18140 {
- compatible = "marvell,orion-gpio";
- reg = <0x18140 0x40>;
+ compatible = "marvell,armada-370-gpio",
+ "marvell,orion-gpio";
+ reg = <0x18140 0x40>, <0x181c8 0x08>;
+ reg-names = "gpio", "pwm";
ngpios = <32>;
gpio-controller;
#gpio-cells = <2>;
+ #pwm-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <87>, <88>, <89>, <90>;
+ clocks = <&coreclk 0>;
};
gpio2: gpio@18180 {
- compatible = "marvell,orion-gpio";
+ compatible = "marvell,armada-370-gpio",
+ "marvell,orion-gpio";
reg = <0x18180 0x40>;
ngpios = <3>;
gpio-controller;
diff --git a/arch/arm/boot/dts/aspeed-g4.dtsi b/arch/arm/boot/dts/aspeed-g4.dtsi
index 8c6bc29eb7f6..22b958537d31 100644
--- a/arch/arm/boot/dts/aspeed-g4.dtsi
+++ b/arch/arm/boot/dts/aspeed-g4.dtsi
@@ -26,7 +26,7 @@
fmc: flash-controller@1e620000 {
reg = < 0x1e620000 0x94
- 0x20000000 0x02000000 >;
+ 0x20000000 0x10000000 >;
#address-cells = <1>;
#size-cells = <0>;
compatible = "aspeed,ast2400-fmc";
@@ -41,7 +41,7 @@
spi: flash-controller@1e630000 {
reg = < 0x1e630000 0x18
- 0x30000000 0x02000000 >;
+ 0x30000000 0x10000000 >;
#address-cells = <1>;
#size-cells = <0>;
compatible = "aspeed,ast2400-spi";
@@ -886,13 +886,12 @@
};
timer: timer@1e782000 {
+ /* This timer is a Faraday FTTMR010 derivative */
compatible = "aspeed,ast2400-timer";
reg = <0x1e782000 0x90>;
- // The moxart_timer driver registers only one
- // interrupt and assumes it's for timer 1
- //interrupts = <16 17 18 35 36 37 38 39>;
- interrupts = <16>;
+ interrupts = <16 17 18 35 36 37 38 39>;
clocks = <&clk_apb>;
+ clock-names = "PCLK";
};
wdt1: wdt@1e785000 {
diff --git a/arch/arm/boot/dts/aspeed-g5.dtsi b/arch/arm/boot/dts/aspeed-g5.dtsi
index a0bea4a6ec77..9cffe347b828 100644
--- a/arch/arm/boot/dts/aspeed-g5.dtsi
+++ b/arch/arm/boot/dts/aspeed-g5.dtsi
@@ -993,13 +993,12 @@
};
timer: timer@1e782000 {
+ /* This timer is a Faraday FTTMR010 derivative */
compatible = "aspeed,ast2400-timer";
reg = <0x1e782000 0x90>;
- // The moxart_timer driver registers only one
- // interrupt and assumes it's for timer 1
- //interrupts = <16 17 18 35 36 37 38 39>;
- interrupts = <16>;
+ interrupts = <16 17 18 35 36 37 38 39>;
clocks = <&clk_apb>;
+ clock-names = "PCLK";
};
diff --git a/arch/arm/boot/dts/at91-cosino.dtsi b/arch/arm/boot/dts/at91-cosino.dtsi
index 02d8ef43de3a..89cde175154e 100644
--- a/arch/arm/boot/dts/at91-cosino.dtsi
+++ b/arch/arm/boot/dts/at91-cosino.dtsi
@@ -82,38 +82,61 @@
};
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "hw";
- atmel,has-pmecc; /* Enable PMECC */
- atmel,pmecc-cap = <4>;
- atmel,pmecc-sector-size = <512>;
- nand-on-flash-bbt;
+ ebi: ebi@10000000 {
+ pinctrl-0 = <&pinctrl_ebi_addr_nand
+ &pinctrl_ebi_data_0_7>;
+ pinctrl-names = "default";
status = "okay";
- at91bootstrap@0 {
- label = "at91bootstrap";
- reg = <0x0 0x40000>;
- };
-
- uboot@40000 {
- label = "u-boot";
- reg = <0x40000 0x80000>;
- };
-
- ubootenv@c0000 {
- label = "U-Boot Env";
- reg = <0xc0000 0x140000>;
- };
-
- kernel@200000 {
- label = "kernel";
- reg = <0x200000 0x600000>;
- };
-
- rootfs@800000 {
- label = "rootfs";
- reg = <0x800000 0x0f800000>;
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_oe_we
+ &pinctrl_nand_cs
+ &pinctrl_nand_rb>;
+ pinctrl-names = "default";
+
+ nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ rb-gpios = <&pioD 5 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&pioD 4 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "hw";
+ nand-ecc-strength = <4>;
+ nand-ecc-step-size = <512>;
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x40000>;
+ };
+
+ uboot@40000 {
+ label = "u-boot";
+ reg = <0x40000 0x80000>;
+ };
+
+ ubootenv@c0000 {
+ label = "U-Boot Env";
+ reg = <0xc0000 0x140000>;
+ };
+
+ kernel@200000 {
+ label = "kernel";
+ reg = <0x200000 0x600000>;
+ };
+
+ rootfs@800000 {
+ label = "rootfs";
+ reg = <0x800000 0x0f800000>;
+ };
+ };
+ };
};
};
};
diff --git a/arch/arm/boot/dts/at91-kizbox.dts b/arch/arm/boot/dts/at91-kizbox.dts
index b4f147c193fd..1f31df846d61 100644
--- a/arch/arm/boot/dts/at91-kizbox.dts
+++ b/arch/arm/boot/dts/at91-kizbox.dts
@@ -59,19 +59,39 @@
status = "okay";
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "soft";
+ ebi: ebi@10000000 {
status = "okay";
- bootstrap@0 {
- label = "bootstrap";
- reg = <0x0 0x20000>;
- };
-
- ubi@20000 {
- label = "ubi";
- reg = <0x20000 0x7fe0000>;
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_cs &pinctrl_nand_rb>;
+ pinctrl-names = "default";
+
+ nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ rb-gpios = <&pioC 13 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&pioC 14 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "soft";
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ bootstrap@0 {
+ label = "bootstrap";
+ reg = <0x0 0x20000>;
+ };
+
+ ubi@20000 {
+ label = "ubi";
+ reg = <0x20000 0x7fe0000>;
+ };
+ };
+ };
};
};
};
diff --git a/arch/arm/boot/dts/at91-kizbox2.dts b/arch/arm/boot/dts/at91-kizbox2.dts
index 50a14568f094..4372c0287c1c 100644
--- a/arch/arm/boot/dts/at91-kizbox2.dts
+++ b/arch/arm/boot/dts/at91-kizbox2.dts
@@ -141,23 +141,40 @@
status = "okay";
};
- nand0: nand@60000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "hw";
- atmel,has-pmecc;
- atmel,pmecc-cap = <4>;
- atmel,pmecc-sector-size = <512>;
- nand-on-flash-bbt;
+ ebi: ebi@10000000 {
+ pinctrl-0 = <&pinctrl_ebi_nand_addr>;
+ pinctrl-names = "default";
status = "okay";
- bootstrap@0 {
- label = "bootstrap";
- reg = <0x0 0x20000>;
- };
+ nand_controller: nand-controller {
+ status = "okay";
+
+ nand@3 {
+ reg = <0x3 0x0 0x2>;
+ atmel,rb = <0>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "hw";
+ nand-ecc-strength = <4>;
+ nand-ecc-step-size = <512>;
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ bootstrap@0 {
+ label = "bootstrap";
+ reg = <0x0 0x20000>;
+ };
- ubi@20000 {
- label = "ubi";
- reg = <0x20000 0x7fe0000>;
+ ubi@20000 {
+ label = "ubi";
+ reg = <0x20000 0x7fe0000>;
+ };
+ };
+ };
};
};
};
diff --git a/arch/arm/boot/dts/at91-kizboxmini.dts b/arch/arm/boot/dts/at91-kizboxmini.dts
index 9682d105d4d8..33238fcb6d0b 100644
--- a/arch/arm/boot/dts/at91-kizboxmini.dts
+++ b/arch/arm/boot/dts/at91-kizboxmini.dts
@@ -68,6 +68,49 @@
status = "okay";
};
+ ebi: ebi@10000000 {
+ pinctrl-0 = <&pinctrl_ebi_addr_nand
+ &pinctrl_ebi_data_0_7>;
+ pinctrl-names = "default";
+ status = "okay";
+
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_oe_we
+ &pinctrl_nand_cs
+ &pinctrl_nand_rb>;
+ pinctrl-names = "default";
+
+ nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ rb-gpios = <&pioD 5 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&pioD 4 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "hw";
+ nand-ecc-strength = <4>;
+ nand-ecc-step-size = <512>;
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ bootstrap@0 {
+ label = "bootstrap";
+ reg = <0x0 0x20000>;
+ };
+
+ ubi@20000 {
+ label = "ubi";
+ reg = <0x20000 0x7fe0000>;
+ };
+ };
+ };
+ };
+ };
+
nand0: nand@40000000 {
nand-bus-width = <8>;
nand-ecc-mode = "hw";
@@ -77,15 +120,6 @@
nand-on-flash-bbt;
status = "okay";
- bootstrap@0 {
- label = "bootstrap";
- reg = <0x0 0x20000>;
- };
-
- ubi@20000 {
- label = "ubi";
- reg = <0x20000 0x7fe0000>;
- };
};
};
diff --git a/arch/arm/boot/dts/at91-linea.dtsi b/arch/arm/boot/dts/at91-linea.dtsi
index 0721c8472509..87e5090fb4c4 100644
--- a/arch/arm/boot/dts/at91-linea.dtsi
+++ b/arch/arm/boot/dts/at91-linea.dtsi
@@ -31,19 +31,30 @@
status = "okay";
eeprom@51 {
- compatible = "st,24c64";
+ compatible = "st,24c64", "atmel,24c64";
reg = <0x51>;
pagesize = <32>;
};
};
-&nand0 {
+&ebi {
+ pinctrl-0 = <&pinctrl_ebi_nand_addr>;
+ pinctrl-names = "default";
status = "okay";
+};
+
- nand-bus-width = <8>;
- nand-ecc-mode = "hw";
- atmel,has-pmecc;
- atmel,pmecc-cap = <4>;
- atmel,pmecc-sector-size = <512>;
- nand-on-flash-bbt;
+&nand_controller {
+ status = "okay";
+
+ nand: nand@3 {
+ reg = <0x3 0x0 0x2>;
+ atmel,rb = <0>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "hw";
+ nand-ecc-strength = <4>;
+ nand-ecc-step-size = <512>;
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+ };
};
diff --git a/arch/arm/boot/dts/at91-qil_a9260.dts b/arch/arm/boot/dts/at91-qil_a9260.dts
index 8f019184fccf..f46352790a41 100644
--- a/arch/arm/boot/dts/at91-qil_a9260.dts
+++ b/arch/arm/boot/dts/at91-qil_a9260.dts
@@ -107,50 +107,69 @@
status = "okay";
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "soft";
- nand-on-flash-bbt;
+ ebi: ebi@10000000 {
status = "okay";
- at91bootstrap@0 {
- label = "at91bootstrap";
- reg = <0x0 0x20000>;
- };
-
- barebox@20000 {
- label = "barebox";
- reg = <0x20000 0x40000>;
- };
-
- bareboxenv@60000 {
- label = "bareboxenv";
- reg = <0x60000 0x20000>;
- };
-
- bareboxenv2@80000 {
- label = "bareboxenv2";
- reg = <0x80000 0x20000>;
- };
-
- oftree@a0000 {
- label = "oftree";
- reg = <0xa0000 0x20000>;
- };
-
- kernel@c0000 {
- label = "kernel";
- reg = <0xc0000 0x400000>;
- };
-
- rootfs@4c0000 {
- label = "rootfs";
- reg = <0x4c0000 0x7800000>;
- };
-
- data@7cc0000 {
- label = "data";
- reg = <0x7cc0000 0x8340000>;
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_cs &pinctrl_nand_rb>;
+ pinctrl-names = "default";
+
+ nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ rb-gpios = <&pioC 13 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&pioC 14 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "soft";
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x20000>;
+ };
+
+ barebox@20000 {
+ label = "barebox";
+ reg = <0x20000 0x40000>;
+ };
+
+ bareboxenv@60000 {
+ label = "bareboxenv";
+ reg = <0x60000 0x20000>;
+ };
+
+ bareboxenv2@80000 {
+ label = "bareboxenv2";
+ reg = <0x80000 0x20000>;
+ };
+
+ oftree@a0000 {
+ label = "oftree";
+ reg = <0xa0000 0x20000>;
+ };
+
+ kernel@c0000 {
+ label = "kernel";
+ reg = <0xc0000 0x400000>;
+ };
+
+ rootfs@4c0000 {
+ label = "rootfs";
+ reg = <0x4c0000 0x7800000>;
+ };
+
+ data@7cc0000 {
+ label = "data";
+ reg = <0x7cc0000 0x8340000>;
+ };
+ };
+ };
};
};
};
diff --git a/arch/arm/boot/dts/at91-sama5d27_som1.dtsi b/arch/arm/boot/dts/at91-sama5d27_som1.dtsi
new file mode 100644
index 000000000000..cf0087b4c9e1
--- /dev/null
+++ b/arch/arm/boot/dts/at91-sama5d27_som1.dtsi
@@ -0,0 +1,102 @@
+/*
+ * at91-sama5d27_som1.dtsi - Device Tree file for SAMA5D27 SoM1 board
+ *
+ * Copyright (c) 2017, Microchip Technology Inc.
+ * 2017 Cristian Birsan <cristian.birsan@microchip.com>
+ * 2017 Claudiu Beznea <claudiu.beznea@microchip.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "sama5d2.dtsi"
+#include "sama5d2-pinfunc.h"
+
+/ {
+ model = "Atmel SAMA5D27 SoM1";
+ compatible = "atmel,sama5d27-som1", "atmel,sama5d27", "atmel,sama5d2", "atmel,sama5";
+
+ clocks {
+ slow_xtal {
+ clock-frequency = <32768>;
+ };
+
+ main_xtal {
+ clock-frequency = <24000000>;
+ };
+ };
+
+ ahb {
+ apb {
+ macb0: ethernet@f8008000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_macb0_default>;
+ phy-mode = "rmii";
+
+ ethernet-phy@0 {
+ reg = <0x0>;
+ interrupt-parent = <&pioA>;
+ interrupts = <PIN_PD31 IRQ_TYPE_LEVEL_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_macb0_phy_irq>;
+ };
+ };
+
+ pinctrl@fc038000 {
+
+ pinctrl_macb0_default: macb0_default {
+ pinmux = <PIN_PD9__GTXCK>,
+ <PIN_PD10__GTXEN>,
+ <PIN_PD11__GRXDV>,
+ <PIN_PD12__GRXER>,
+ <PIN_PD13__GRX0>,
+ <PIN_PD14__GRX1>,
+ <PIN_PD15__GTX0>,
+ <PIN_PD16__GTX1>,
+ <PIN_PD17__GMDC>,
+ <PIN_PD18__GMDIO>;
+ bias-disable;
+ };
+
+ pinctrl_macb0_phy_irq: macb0_phy_irq {
+ pinmux = <PIN_PD31__GPIO>;
+ bias-disable;
+ };
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts b/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
new file mode 100644
index 000000000000..60cb084a8d92
--- /dev/null
+++ b/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
@@ -0,0 +1,540 @@
+/*
+ * at91-sama5d27_som1_ek.dts - Device Tree file for SAMA5D27-SOM1-EK board
+ *
+ * Copyright (c) 2017, Microchip Technology Inc.
+ * 2016 Nicolas Ferre <nicolas.ferre@atmel.com>
+ * 2017 Cristian Birsan <cristian.birsan@microchip.com>
+ * 2017 Claudiu Beznea <claudiu.beznea@microchip.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+/dts-v1/;
+#include "at91-sama5d27_som1.dtsi"
+#include <dt-bindings/mfd/atmel-flexcom.h>
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ model = "Atmel SAMA5D27 SOM1 EK";
+ compatible = "atmel,sama5d27-som1-ek", "atmel,sama5d27-som1", "atmel,sama5d27", "atmel,sama5d2", "atmel,sama5";
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ ahb {
+ usb0: gadget@00300000 {
+ atmel,vbus-gpio = <&pioA PIN_PD20 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usba_vbus>;
+ status = "okay";
+ };
+
+ usb1: ohci@00400000 {
+ num-ports = <3>;
+ atmel,vbus-gpio = <0 /* &pioA PIN_PD20 GPIO_ACTIVE_HIGH */
+ &pioA PIN_PA27 GPIO_ACTIVE_HIGH
+ 0
+ >;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usb_default>;
+ status = "okay";
+ };
+
+ usb2: ehci@00500000 {
+ status = "okay";
+ };
+
+ sdmmc0: sdio-host@a0000000 {
+ bus-width = <8>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sdmmc0_default>;
+ status = "okay";
+ };
+
+ sdmmc1: sdio-host@b0000000 {
+ bus-width = <4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sdmmc1_default>;
+ status = "okay";
+ };
+
+ apb {
+ isc: isc@f0008000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_isc_base &pinctrl_isc_data_8bit &pinctrl_isc_data_9_10 &pinctrl_isc_data_11_12>;
+ status = "okay";
+ };
+
+ spi0: spi@f8000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_spi0_default>;
+ status = "okay";
+ };
+
+ macb0: ethernet@f8008000 {
+ status = "okay";
+ };
+
+ uart1: serial@f8020000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart1_default>;
+ atmel,use-dma-rx;
+ atmel,use-dma-tx;
+ status = "okay";
+ };
+
+ uart2: serial@f8024000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_mikrobus2_uart>;
+ atmel,use-dma-rx;
+ atmel,use-dma-tx;
+ status = "okay";
+ };
+
+ pwm0: pwm@f802c000 {
+ status = "okay";
+ };
+
+ flx1: flexcom@f8038000 {
+ atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;
+ status = "disabled";
+
+ i2c2: i2c@600 {
+ compatible = "atmel,sama5d2-i2c";
+ reg = <0x600 0x200>;
+ interrupts = <20 IRQ_TYPE_LEVEL_HIGH 7>;
+ dmas = <0>, <0>;
+ dma-names = "tx", "rx";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&flx1_clk>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_mikrobus_i2c>;
+ atmel,fifo-size = <16>;
+ status = "disabled";
+ };
+ };
+
+ shdwc@f8048010 {
+ atmel,shdwc-debouncer = <976>;
+ atmel,wakeup-rtc-timer;
+
+ input@0 {
+ reg = <0>;
+ atmel,wakeup-type = "low";
+ };
+ };
+
+ watchdog@f8048040 {
+ status = "okay";
+ };
+
+ can0: can@f8054000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_can0_default>;
+ };
+
+ uart3: serial@fc008000 {
+ atmel,use-dma-rx;
+ atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart3_default>;
+ status = "disabled";
+ };
+
+ uart4: serial@fc00c000 {
+ atmel,use-dma-rx;
+ atmel,use-dma-tx;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_mikrobus1_uart>;
+ status = "okay";
+ };
+
+ flx3: flexcom@fc014000 {
+ atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_SPI>;
+ status = "disabled";
+
+ uart7: serial@200 {
+ compatible = "atmel,at91sam9260-usart";
+ reg = <0x200 0x200>;
+ interrupts = <22 IRQ_TYPE_LEVEL_HIGH 7>;
+ clocks = <&flx3_clk>;
+ clock-names = "usart";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flx3_default>;
+ atmel,fifo-size = <32>;
+ status = "disabled";
+ };
+
+ spi2: spi@400 {
+ compatible = "atmel,at91rm9200-spi";
+ reg = <0x400 0x200>;
+ interrupts = <22 IRQ_TYPE_LEVEL_HIGH 7>;
+ clocks = <&flx3_clk>;
+ clock-names = "spi_clk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flx3_default>;
+ atmel,fifo-size = <16>;
+ status = "disabled";
+ };
+ };
+
+ flx4: flexcom@fc018000 {
+ atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_SPI>;
+ status = "okay";
+
+ uart6: serial@200 {
+ compatible = "atmel,at91sam9260-usart";
+ reg = <0x200 0x200>;
+ interrupts = <23 IRQ_TYPE_LEVEL_HIGH 7>;
+ clocks = <&flx4_clk>;
+ clock-names = "usart";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flx4_default>;
+ atmel,fifo-size = <32>;
+ status = "disabled";
+ };
+
+ spi3: spi@400 {
+ compatible = "atmel,at91rm9200-spi";
+ reg = <0x400 0x200>;
+ interrupts = <23 IRQ_TYPE_LEVEL_HIGH 7>;
+ clocks = <&flx4_clk>;
+ clock-names = "spi_clk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_mikrobus_spi &pinctrl_mikrobus1_spi_cs &pinctrl_mikrobus2_spi_cs>;
+ atmel,fifo-size = <16>;
+ status = "okay";
+ };
+
+ i2c3: i2c@600 {
+ compatible = "atmel,sama5d2-i2c";
+ reg = <0x600 0x200>;
+ interrupts = <23 IRQ_TYPE_LEVEL_HIGH 7>;
+ dmas = <0>, <0>;
+ dma-names = "tx", "rx";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&flx4_clk>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flx4_default>;
+ atmel,fifo-size = <16>;
+ status = "disabled";
+ };
+ };
+
+ i2c1: i2c@fc028000 {
+ dmas = <0>, <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c1_default>;
+ status = "okay";
+ };
+
+ pinctrl@fc038000 {
+
+ pinctrl_can0_default: can0_default {
+ pinmux = <PIN_PC10__CANTX0>,
+ <PIN_PC11__CANRX0>;
+ bias-disable;
+ };
+
+ pinctrl_can1_default: can1_default {
+ pinmux = <PIN_PC26__CANTX1>,
+ <PIN_PC27__CANRX1>;
+ bias-disable;
+ };
+
+ pinctrl_flx3_default: flx3_default {
+ pinmux = <PIN_PC20__FLEXCOM3_IO0>,
+ <PIN_PC19__FLEXCOM3_IO1>,
+ <PIN_PC18__FLEXCOM3_IO2>,
+ <PIN_PC21__FLEXCOM3_IO3>,
+ <PIN_PC22__FLEXCOM3_IO4>;
+ bias-disable;
+ };
+
+ pinctrl_i2c1_default: i2c1_default {
+ pinmux = <PIN_PD4__TWD1>,
+ <PIN_PD5__TWCK1>;
+ bias-disable;
+ };
+
+ pinctrl_isc_base: isc_base {
+ pinmux = <PIN_PC21__ISC_PCK>,
+ <PIN_PC22__ISC_VSYNC>,
+ <PIN_PC23__ISC_HSYNC>,
+ <PIN_PC24__ISC_MCK>;
+ bias-disable;
+ };
+
+ pinctrl_isc_data_8bit: isc_data_8bit {
+ pinmux = <PIN_PC20__ISC_D11>,
+ <PIN_PC19__ISC_D10>,
+ <PIN_PC18__ISC_D9>,
+ <PIN_PC17__ISC_D8>,
+ <PIN_PC16__ISC_D7>,
+ <PIN_PC15__ISC_D6>,
+ <PIN_PC14__ISC_D5>,
+ <PIN_PC13__ISC_D4>;
+ bias-disable;
+ };
+
+ pinctrl_isc_data_9_10: isc_data_9_10 {
+ pinmux = <PIN_PC12__ISC_D3>,
+ <PIN_PC11__ISC_D2>;
+ bias-disable;
+ };
+
+ pinctrl_isc_data_11_12: isc_data_11_12 {
+ pinmux = <PIN_PC10__ISC_D1>,
+ <PIN_PC9__ISC_D0>;
+ bias-disable;
+ };
+
+ pinctrl_key_gpio_default: key_gpio_default {
+ pinmux = <PIN_PA29__GPIO>;
+ bias-pull-up;
+ };
+
+ pinctrl_led_gpio_default: led_gpio_default {
+ pinmux = <PIN_PA10__GPIO>,
+ <PIN_PB1__GPIO>,
+ <PIN_PA31__GPIO>;
+ bias-pull-up;
+ };
+
+ pinctrl_sdmmc0_default: sdmmc0_default {
+ cmd_data {
+ pinmux = <PIN_PA1__SDMMC0_CMD>,
+ <PIN_PA2__SDMMC0_DAT0>,
+ <PIN_PA3__SDMMC0_DAT1>,
+ <PIN_PA4__SDMMC0_DAT2>,
+ <PIN_PA5__SDMMC0_DAT3>,
+ <PIN_PA6__SDMMC0_DAT4>,
+ <PIN_PA7__SDMMC0_DAT5>,
+ <PIN_PA8__SDMMC0_DAT6>,
+ <PIN_PA9__SDMMC0_DAT7>;
+ bias-pull-up;
+ };
+
+ ck_cd_vddsel {
+ pinmux = <PIN_PA0__SDMMC0_CK>,
+ <PIN_PA11__SDMMC0_VDDSEL>,
+ <PIN_PA13__SDMMC0_CD>;
+ bias-disable;
+ };
+ };
+
+ pinctrl_sdmmc1_default: sdmmc1_default {
+ cmd_data {
+ pinmux = <PIN_PA28__SDMMC1_CMD>,
+ <PIN_PA18__SDMMC1_DAT0>,
+ <PIN_PA19__SDMMC1_DAT1>,
+ <PIN_PA20__SDMMC1_DAT2>,
+ <PIN_PA21__SDMMC1_DAT3>;
+ bias-pull-up;
+ };
+
+ conf-ck_cd {
+ pinmux = <PIN_PA22__SDMMC1_CK>,
+ <PIN_PA30__SDMMC1_CD>;
+ bias-disable;
+ };
+ };
+
+ pinctrl_spi0_default: spi0_default {
+ pinmux = <PIN_PA14__SPI0_SPCK>,
+ <PIN_PA15__SPI0_MOSI>,
+ <PIN_PA16__SPI0_MISO>,
+ <PIN_PA17__SPI0_NPCS0>;
+ bias-disable;
+ };
+
+ pinctrl_uart1_default: uart1_default {
+ pinmux = <PIN_PD2__URXD1>,
+ <PIN_PD3__UTXD1>;
+ bias-disable;
+ };
+
+ pinctrl_uart3_default: uart3_default {
+ pinmux = <PIN_PC12__URXD3>,
+ <PIN_PC13__UTXD3>;
+ bias-disable;
+ };
+
+ pinctrl_usb_default: usb_default {
+ pinmux = <PIN_PA27__GPIO>,
+ <PIN_PD19__GPIO>;
+ bias-disable;
+ };
+
+ pinctrl_usba_vbus: usba_vbus {
+ pinmux = <PIN_PD20__GPIO>;
+ bias-disable;
+ };
+
+ pinctrl_mikrobus1_an: mikrobus1_an {
+ pinmux = <PIN_PD25__GPIO>;
+ bias-disable;
+ };
+
+ pinctrl_mikrobus2_an: mikrobus2_an {
+ pinmux = <PIN_PD26__GPIO>;
+ bias-disable;
+ };
+
+ pinctrl_mikrobus1_rst: mikrobus1_rst {
+ pinmux = <PIN_PB2__GPIO>;
+ bias-disable;
+ };
+
+ pinctrl_mikrobus2_rst: mikrobus2_rst {
+ pinmux = <PIN_PA26__GPIO>;
+ bias-disable;
+ };
+
+ pinctrl_mikrobus1_spi_cs: mikrobus1_spi_cs {
+ pinmux = <PIN_PD0__FLEXCOM4_IO4>;
+ bias-disable;
+ };
+
+ pinctrl_mikrobus2_spi_cs: mikrobus2_spi_cs {
+ pinmux = <PIN_PC31__FLEXCOM4_IO3>;
+ bias-disable;
+ };
+
+ pinctrl_mikrobus_spi: mikrobus_spi {
+ pinmux = <PIN_PC28__FLEXCOM4_IO0>,
+ <PIN_PC29__FLEXCOM4_IO1>,
+ <PIN_PC30__FLEXCOM4_IO2>;
+ bias-disable;
+ };
+
+ pinctrl_mikrobus1_pwm: mikrobus1_pwm {
+ pinmux = <PIN_PB1__PWML1>;
+ bias-disable;
+ };
+
+ pinctrl_mikrobus2_pwm: mikrobus2_pwm {
+ pinmux = <PIN_PA31__PWML0>;
+ bias-disable;
+ };
+
+ pinctrl_mikrobus1_int: mikrobus1_int {
+ pinmux = <PIN_PB0__GPIO>;
+ bias-disable;
+ };
+
+ pinctrl_mikrobus2_int: mikrobus2_int {
+ pinmux = <PIN_PA25__GPIO>;
+ bias-disable;
+ };
+
+ pinctrl_mikrobus1_uart: mikrobus1_uart {
+ pinmux = <PIN_PB3__URXD4>,
+ <PIN_PB4__UTXD4>;
+ bias-disable;
+ };
+
+ pinctrl_mikrobus2_uart: mikrobus2_uart {
+ pinmux = <PIN_PD23__URXD2>,
+ <PIN_PD24__UTXD2>;
+ bias-disable;
+ };
+
+ pinctrl_mikrobus_i2c: mikrobus1_i2c {
+ pinmux = <PIN_PA24__FLEXCOM1_IO0>,
+ <PIN_PA23__FLEXCOM1_IO1>;
+ bias-disable;
+ };
+
+ pinctrl_flx4_default: flx4_uart_default {
+ pinmux = <PIN_PC28__FLEXCOM4_IO0>,
+ <PIN_PC29__FLEXCOM4_IO1>,
+ <PIN_PC30__FLEXCOM4_IO2>,
+ <PIN_PC31__FLEXCOM4_IO3>,
+ <PIN_PD0__FLEXCOM4_IO4>;
+ bias-disable;
+ };
+ };
+
+ can1: can@fc050000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_can1_default>;
+ status = "okay";
+ };
+ };
+ };
+
+ gpio_keys {
+ compatible = "gpio-keys";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_key_gpio_default>;
+
+ pb4 {
+ label = "USER";
+ gpios = <&pioA PIN_PA29 GPIO_ACTIVE_LOW>;
+ linux,code = <0x104>;
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_led_gpio_default>;
+ status = "okay";
+
+ red {
+ label = "red";
+ gpios = <&pioA PIN_PA10 GPIO_ACTIVE_HIGH>;
+ };
+
+ green {
+ label = "green";
+ gpios = <&pioA PIN_PB1 GPIO_ACTIVE_HIGH>;
+ };
+
+ blue {
+ label = "blue";
+ gpios = <&pioA PIN_PA31 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "heartbeat";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/at91-sama5d2_xplained.dts b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
index 0bef9e0b89c6..cbc26001247b 100644
--- a/arch/arm/boot/dts/at91-sama5d2_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
@@ -56,10 +56,6 @@
stdout-path = "serial0:115200n8";
};
- memory {
- reg = <0x20000000 0x80000>;
- };
-
clocks {
slow_xtal {
clock-frequency = <32768>;
@@ -72,7 +68,7 @@
ahb {
usb0: gadget@00300000 {
- atmel,vbus-gpio = <&pioA 31 GPIO_ACTIVE_HIGH>;
+ atmel,vbus-gpio = <&pioA PIN_PA31 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usba_vbus>;
status = "okay";
@@ -80,8 +76,8 @@
usb1: ohci@00400000 {
num-ports = <3>;
- atmel,vbus-gpio = <0 /* &pioA 41 GPIO_ACTIVE_HIGH */
- &pioA 42 GPIO_ACTIVE_HIGH
+ atmel,vbus-gpio = <0 /* &pioA PIN_PB9 GPIO_ACTIVE_HIGH */
+ &pioA PIN_PB10 GPIO_ACTIVE_HIGH
0
>;
pinctrl-names = "default";
@@ -131,7 +127,7 @@
ethernet-phy@1 {
reg = <0x1>;
interrupt-parent = <&pioA>;
- interrupts = <73 IRQ_TYPE_LEVEL_LOW>;
+ interrupts = <PIN_PC9 IRQ_TYPE_LEVEL_LOW>;
};
};
@@ -164,9 +160,9 @@
compatible = "active-semi,act8945a";
reg = <0x5b>;
active-semi,vsel-high;
- active-semi,chglev-gpios = <&pioA 12 GPIO_ACTIVE_HIGH>;
- active-semi,lbo-gpios = <&pioA 72 GPIO_ACTIVE_LOW>;
- active-semi,irq_gpios = <&pioA 45 GPIO_ACTIVE_LOW>;
+ active-semi,chglev-gpios = <&pioA PIN_PA12 GPIO_ACTIVE_HIGH>;
+ active-semi,lbo-gpios = <&pioA PIN_PC8 GPIO_ACTIVE_LOW>;
+ active-semi,irq_gpios = <&pioA PIN_PB13 GPIO_ACTIVE_LOW>;
active-semi,input-voltage-threshold-microvolt = <6600>;
active-semi,precondition-timeout = <40>;
active-semi,total-timeout = <3>;
@@ -227,6 +223,10 @@
};
};
+ pwm0: pwm@f802c000 {
+ status = "okay";
+ };
+
flx0: flexcom@f8034000 {
atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;
status = "disabled"; /* conflict with ISC_D2 & ISC_D3 data pins */
@@ -258,6 +258,12 @@
status = "okay";
};
+ can0: can@f8054000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_can0_default>;
+ status = "okay";
+ };
+
uart3: serial@fc008000 {
atmel,use-dma-rx;
atmel,use-dma-tx;
@@ -303,7 +309,7 @@
vddana-supply = <&vdd_3v3_lp_reg>;
vref-supply = <&vdd_3v3_lp_reg>;
pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_adc_default>;
+ pinctrl-0 = <&pinctrl_adc_default &pinctrl_adtrg_default>;
status = "okay";
};
@@ -322,6 +328,32 @@
bias-disable;
};
+ pinctrl_can0_default: can0_default {
+ pinmux = <PIN_PC10__CANTX0>,
+ <PIN_PC11__CANRX0>;
+ bias-disable;
+ };
+
+ pinctrl_can1_default: can1_default {
+ pinmux = <PIN_PC26__CANTX1>,
+ <PIN_PC27__CANRX1>;
+ bias-disable;
+ };
+
+ /*
+ * The ADTRG pin can work on any edge type.
+ * In here it's being pulled up, so need to
+ * connect it to ground to get an edge e.g.
+ * Trigger can be configured on falling, rise
+ * or any edge, and the pull-up can be changed
+ * to pull-down or left floating according to
+ * needs.
+ */
+ pinctrl_adtrg_default: adtrg_default {
+ pinmux = <PIN_PD31__ADTRG>;
+ bias-pull-up;
+ };
+
pinctrl_charger_chglev: charger_chglev {
pinmux = <PIN_PA12__GPIO>;
bias-disable;
@@ -337,6 +369,14 @@
bias-pull-up;
};
+ pinctrl_classd_default: classd_default {
+ pinmux = <PIN_PB1__CLASSD_R0>,
+ <PIN_PB2__CLASSD_R1>,
+ <PIN_PB3__CLASSD_R2>,
+ <PIN_PB4__CLASSD_R3>;
+ bias-pull-up;
+ };
+
pinctrl_flx0_default: flx0_default {
pinmux = <PIN_PB28__FLEXCOM0_IO0>,
<PIN_PB29__FLEXCOM0_IO1>;
@@ -469,6 +509,20 @@
};
};
+
+ classd: classd@fc048000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_classd_default>;
+ atmel,pwm-type = "diff";
+ atmel,non-overlap-time = <10>;
+ status = "okay";
+ };
+
+ can1: can@fc050000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_can1_default>;
+ status = "okay";
+ };
};
};
@@ -480,7 +534,7 @@
bp1 {
label = "PB_USER";
- gpios = <&pioA 41 GPIO_ACTIVE_LOW>;
+ gpios = <&pioA PIN_PB9 GPIO_ACTIVE_LOW>;
linux,code = <0x104>;
};
};
@@ -493,17 +547,18 @@
red {
label = "red";
- gpios = <&pioA 38 GPIO_ACTIVE_LOW>;
+ gpios = <&pioA PIN_PB6 GPIO_ACTIVE_LOW>;
};
+
green {
label = "green";
- gpios = <&pioA 37 GPIO_ACTIVE_LOW>;
+ gpios = <&pioA PIN_PB5 GPIO_ACTIVE_LOW>;
};
blue {
label = "blue";
- gpios = <&pioA 32 GPIO_ACTIVE_LOW>;
+ gpios = <&pioA PIN_PB0 GPIO_ACTIVE_LOW>;
linux,default-trigger = "heartbeat";
};
};
diff --git a/arch/arm/boot/dts/at91-sama5d3_xplained.dts b/arch/arm/boot/dts/at91-sama5d3_xplained.dts
index 5a53fcf542ab..3af088d2cba7 100644
--- a/arch/arm/boot/dts/at91-sama5d3_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d3_xplained.dts
@@ -235,46 +235,6 @@
};
};
- nand0: nand@60000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "hw";
- atmel,has-pmecc;
- atmel,pmecc-cap = <4>;
- atmel,pmecc-sector-size = <512>;
- nand-on-flash-bbt;
- status = "okay";
-
- at91bootstrap@0 {
- label = "at91bootstrap";
- reg = <0x0 0x40000>;
- };
-
- bootloader@40000 {
- label = "bootloader";
- reg = <0x40000 0x80000>;
- };
-
- bootloaderenv@c0000 {
- label = "bootloader env";
- reg = <0xc0000 0xc0000>;
- };
-
- dtb@180000 {
- label = "device tree";
- reg = <0x180000 0x80000>;
- };
-
- kernel@200000 {
- label = "kernel";
- reg = <0x200000 0x600000>;
- };
-
- rootfs@800000 {
- label = "rootfs";
- reg = <0x800000 0x0f800000>;
- };
- };
-
usb0: gadget@00500000 {
atmel,vbus-gpio = <&pioE 9 GPIO_ACTIVE_HIGH>; /* PE9, conflicts with A9 */
pinctrl-names = "default";
@@ -294,6 +254,63 @@
usb2: ehci@00700000 {
status = "okay";
};
+
+ ebi: ebi@10000000 {
+ pinctrl-0 = <&pinctrl_ebi_nand_addr>;
+ pinctrl-names = "default";
+ status = "okay";
+
+ nand_controller: nand-controller {
+ status = "okay";
+
+ nand@3 {
+ reg = <0x3 0x0 0x2>;
+ atmel,rb = <0>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "hw";
+ nand-ecc-strength = <4>;
+ nand-ecc-step-size = <512>;
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x40000>;
+ };
+
+ bootloader@40000 {
+ label = "bootloader";
+ reg = <0x40000 0x80000>;
+ };
+
+ bootloaderenv@c0000 {
+ label = "bootloader env";
+ reg = <0xc0000 0xc0000>;
+ };
+
+ dtb@180000 {
+ label = "device tree";
+ reg = <0x180000 0x80000>;
+ };
+
+ kernel@200000 {
+ label = "kernel";
+ reg = <0x200000 0x600000>;
+ };
+
+ rootfs@800000 {
+ label = "rootfs";
+ reg = <0x800000 0x0f800000>;
+ };
+ };
+ };
+ };
+ };
};
vcc_mmc0_reg: fixedregulator_mmc0 {
diff --git a/arch/arm/boot/dts/at91-sama5d4_ma5d4.dtsi b/arch/arm/boot/dts/at91-sama5d4_ma5d4.dtsi
index b5a5a91bc2ef..b813fdfa2842 100644
--- a/arch/arm/boot/dts/at91-sama5d4_ma5d4.dtsi
+++ b/arch/arm/boot/dts/at91-sama5d4_ma5d4.dtsi
@@ -75,7 +75,7 @@
reg = <0>;
clocks = <&clk20m>;
interrupt-parent = <&pioE>;
- interrupts = <6 GPIO_ACTIVE_LOW>;
+ interrupts = <6 IRQ_TYPE_EDGE_RISING>;
spi-max-frequency = <10000000>;
};
@@ -84,7 +84,7 @@
reg = <1>;
clocks = <&clk20m>;
interrupt-parent = <&pioE>;
- interrupts = <7 GPIO_ACTIVE_LOW>;
+ interrupts = <7 IRQ_TYPE_EDGE_RISING>;
spi-max-frequency = <10000000>;
};
};
diff --git a/arch/arm/boot/dts/at91-sama5d4_xplained.dts b/arch/arm/boot/dts/at91-sama5d4_xplained.dts
index 5ab14cedb1db..cf712444b2c2 100644
--- a/arch/arm/boot/dts/at91-sama5d4_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d4_xplained.dts
@@ -190,41 +190,60 @@
status = "okay";
};
- nand0: nand@80000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "hw";
- nand-on-flash-bbt;
- atmel,has-pmecc;
+ ebi: ebi@10000000 {
+ pinctrl-0 = <&pinctrl_ebi_cs3 &pinctrl_ebi_nrd_nandoe
+ &pinctrl_ebi_nwe_nandwe &pinctrl_ebi_nandrdy
+ &pinctrl_ebi_data_0_7 &pinctrl_ebi_nand_addr>;
+ pinctrl-names = "default";
status = "okay";
- at91bootstrap@0 {
- label = "at91bootstrap";
- reg = <0x0 0x40000>;
- };
-
- bootloader@40000 {
- label = "bootloader";
- reg = <0x40000 0x80000>;
- };
-
- bootloaderenv@c0000 {
- label = "bootloader env";
- reg = <0xc0000 0xc0000>;
- };
-
- dtb@180000 {
- label = "device tree";
- reg = <0x180000 0x80000>;
- };
-
- kernel@200000 {
- label = "kernel";
- reg = <0x200000 0x600000>;
- };
+ nand_controller: nand-controller {
+ status = "okay";
- rootfs@800000 {
- label = "rootfs";
- reg = <0x800000 0x0f800000>;
+ nand@3 {
+ reg = <0x3 0x0 0x2>;
+ atmel,rb = <0>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "hw";
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x40000>;
+ };
+
+ bootloader@40000 {
+ label = "bootloader";
+ reg = <0x40000 0x80000>;
+ };
+
+ bootloaderenv@c0000 {
+ label = "bootloader env";
+ reg = <0xc0000 0xc0000>;
+ };
+
+ dtb@180000 {
+ label = "device tree";
+ reg = <0x180000 0x80000>;
+ };
+
+ kernel@200000 {
+ label = "kernel";
+ reg = <0x200000 0x600000>;
+ };
+
+ rootfs@800000 {
+ label = "rootfs";
+ reg = <0x800000 0x0f800000>;
+ };
+ };
+ };
};
};
};
diff --git a/arch/arm/boot/dts/at91-sama5d4ek.dts b/arch/arm/boot/dts/at91-sama5d4ek.dts
index f8b96cef5e1a..bae5248f126e 100644
--- a/arch/arm/boot/dts/at91-sama5d4ek.dts
+++ b/arch/arm/boot/dts/at91-sama5d4ek.dts
@@ -236,41 +236,60 @@
status = "okay";
};
- nand0: nand@80000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "hw";
- nand-on-flash-bbt;
- atmel,has-pmecc;
+ ebi: ebi@10000000 {
+ pinctrl-0 = <&pinctrl_ebi_cs3 &pinctrl_ebi_nrd_nandoe
+ &pinctrl_ebi_nwe_nandwe &pinctrl_ebi_nandrdy
+ &pinctrl_ebi_data_0_7 &pinctrl_ebi_nand_addr>;
+ pinctrl-names = "default";
status = "okay";
- at91bootstrap@0 {
- label = "at91bootstrap";
- reg = <0x0 0x40000>;
- };
-
- bootloader@40000 {
- label = "bootloader";
- reg = <0x40000 0x80000>;
- };
-
- bootloaderenv@c0000 {
- label = "bootloader env";
- reg = <0xc0000 0xc0000>;
- };
-
- dtb@180000 {
- label = "device tree";
- reg = <0x180000 0x80000>;
- };
-
- kernel@200000 {
- label = "kernel";
- reg = <0x200000 0x600000>;
- };
+ nand_controller: nand-controller {
+ status = "okay";
- rootfs@800000 {
- label = "rootfs";
- reg = <0x800000 0x0f800000>;
+ nand@3 {
+ reg = <0x3 0x0 0x2>;
+ atmel,rb = <0>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "hw";
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x40000>;
+ };
+
+ bootloader@40000 {
+ label = "bootloader";
+ reg = <0x40000 0x80000>;
+ };
+
+ bootloaderenv@c0000 {
+ label = "bootloader env";
+ reg = <0xc0000 0xc0000>;
+ };
+
+ dtb@180000 {
+ label = "device tree";
+ reg = <0x180000 0x80000>;
+ };
+
+ kernel@200000 {
+ label = "kernel";
+ reg = <0x200000 0x600000>;
+ };
+
+ rootfs@800000 {
+ label = "rootfs";
+ reg = <0x800000 0x0f800000>;
+ };
+ };
+ };
};
};
};
diff --git a/arch/arm/boot/dts/at91-tse850-3.dts b/arch/arm/boot/dts/at91-tse850-3.dts
index 498fba3e52b5..5f29010cdbd8 100644
--- a/arch/arm/boot/dts/at91-tse850-3.dts
+++ b/arch/arm/boot/dts/at91-tse850-3.dts
@@ -161,45 +161,51 @@
};
};
-&nand0 {
- at91bootstrap@0 {
- label = "at91bootstrap";
- reg = <0x0 0x40000>;
- };
+&nand {
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x40000>;
+ };
- barebox@40000 {
- label = "bootloader";
- reg = <0x40000 0x60000>;
- };
+ barebox@40000 {
+ label = "bootloader";
+ reg = <0x40000 0x60000>;
+ };
- bareboxenv@c0000 {
- label = "bareboxenv";
- reg = <0xc0000 0x40000>;
- };
+ bareboxenv@c0000 {
+ label = "bareboxenv";
+ reg = <0xc0000 0x40000>;
+ };
- bareboxenv2@100000 {
- label = "bareboxenv2";
- reg = <0x100000 0x40000>;
- };
+ bareboxenv2@100000 {
+ label = "bareboxenv2";
+ reg = <0x100000 0x40000>;
+ };
- oftree@180000 {
- label = "oftree";
- reg = <0x180000 0x20000>;
- };
+ oftree@180000 {
+ label = "oftree";
+ reg = <0x180000 0x20000>;
+ };
- kernel@200000 {
- label = "kernel";
- reg = <0x200000 0x500000>;
- };
+ kernel@200000 {
+ label = "kernel";
+ reg = <0x200000 0x500000>;
+ };
- rootfs@800000 {
- label = "rootfs";
- reg = <0x800000 0x0f800000>;
- };
+ rootfs@800000 {
+ label = "rootfs";
+ reg = <0x800000 0x0f800000>;
+ };
- ovlfs@10000000 {
- label = "ovlfs";
- reg = <0x10000000 0x10000000>;
+ ovlfs@10000000 {
+ label = "ovlfs";
+ reg = <0x10000000 0x10000000>;
+ };
};
};
@@ -239,7 +245,7 @@
};
eeprom@50 {
- compatible = "nxp,24c02";
+ compatible = "nxp,24c02", "atmel,24c02";
reg = <0x50>;
pagesize = <16>;
};
diff --git a/arch/arm/boot/dts/at91sam9260.dtsi b/arch/arm/boot/dts/at91sam9260.dtsi
index 9e035b21e1b6..6582f3cca929 100644
--- a/arch/arm/boot/dts/at91sam9260.dtsi
+++ b/arch/arm/boot/dts/at91sam9260.dtsi
@@ -99,6 +99,16 @@
reg = <0xffffea00 0x200>;
};
+ smc: smc@ffffec00 {
+ compatible = "atmel,at91sam9260-smc", "syscon";
+ reg = <0xffffec00 0x200>;
+ };
+
+ matrix: matrix@ffffee00 {
+ compatible = "atmel,at91sam9260-matrix", "syscon";
+ reg = <0xffffee00 0x200>;
+ };
+
pmc: pmc@fffffc00 {
compatible = "atmel,at91sam9260-pmc", "syscon";
reg = <0xfffffc00 0x100>;
@@ -522,10 +532,14 @@
};
nand {
- pinctrl_nand: nand-0 {
+ pinctrl_nand_rb: nand-rb-0 {
+ atmel,pins =
+ <AT91_PIOC 13 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
+ };
+
+ pinctrl_nand_cs: nand-cs-0 {
atmel,pins =
- <AT91_PIOC 13 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP /* PC13 gpio RDY pin pull_up */
- AT91_PIOC 14 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>; /* PC14 gpio enable pin pull_up */
+ <AT91_PIOC 14 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
};
};
@@ -985,24 +999,6 @@
};
};
- nand0: nand@40000000 {
- compatible = "atmel,at91rm9200-nand";
- #address-cells = <1>;
- #size-cells = <1>;
- reg = <0x40000000 0x10000000
- 0xffffe800 0x200
- >;
- atmel,nand-addr-offset = <21>;
- atmel,nand-cmd-offset = <22>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_nand>;
- gpios = <&pioC 13 GPIO_ACTIVE_HIGH
- &pioC 14 GPIO_ACTIVE_HIGH
- 0
- >;
- status = "disabled";
- };
-
usb0: ohci@500000 {
compatible = "atmel,at91rm9200-ohci", "usb-ohci";
reg = <0x00500000 0x100000>;
@@ -1011,6 +1007,33 @@
clock-names = "ohci_clk", "hclk", "uhpck";
status = "disabled";
};
+
+ ebi: ebi@10000000 {
+ compatible = "atmel,at91sam9260-ebi";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ atmel,smc = <&smc>;
+ atmel,matrix = <&matrix>;
+ reg = <0x10000000 0x80000000>;
+ ranges = <0x0 0x0 0x10000000 0x10000000
+ 0x1 0x0 0x20000000 0x10000000
+ 0x2 0x0 0x30000000 0x10000000
+ 0x3 0x0 0x40000000 0x10000000
+ 0x4 0x0 0x50000000 0x10000000
+ 0x5 0x0 0x60000000 0x10000000
+ 0x6 0x0 0x70000000 0x10000000
+ 0x7 0x0 0x80000000 0x10000000>;
+ clocks = <&mck>;
+ status = "disabled";
+
+ nand_controller: nand-controller {
+ compatible = "atmel,at91sam9260-nand-controller";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges;
+ status = "disabled";
+ };
+ };
};
i2c-gpio-0 {
diff --git a/arch/arm/boot/dts/at91sam9261.dtsi b/arch/arm/boot/dts/at91sam9261.dtsi
index 7e80acda8f69..a05353f96151 100644
--- a/arch/arm/boot/dts/at91sam9261.dtsi
+++ b/arch/arm/boot/dts/at91sam9261.dtsi
@@ -91,20 +91,31 @@
status = "disabled";
};
- nand0: nand@40000000 {
- compatible = "atmel,at91rm9200-nand";
- #address-cells = <1>;
+ ebi: ebi@10000000 {
+ compatible = "atmel,at91sam9261-ebi";
+ #address-cells = <2>;
#size-cells = <1>;
- reg = <0x40000000 0x10000000>;
- atmel,nand-addr-offset = <22>;
- atmel,nand-cmd-offset = <21>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_nand>;
-
- gpios = <&pioC 15 GPIO_ACTIVE_HIGH>,
- <&pioC 14 GPIO_ACTIVE_HIGH>,
- <0>;
+ atmel,smc = <&smc>;
+ atmel,matrix = <&matrix>;
+ reg = <0x10000000 0x80000000>;
+ ranges = <0x0 0x0 0x10000000 0x10000000
+ 0x1 0x0 0x20000000 0x10000000
+ 0x2 0x0 0x30000000 0x10000000
+ 0x3 0x0 0x40000000 0x10000000
+ 0x4 0x0 0x50000000 0x10000000
+ 0x5 0x0 0x60000000 0x10000000
+ 0x6 0x0 0x70000000 0x10000000
+ 0x7 0x0 0x80000000 0x10000000>;
+ clocks = <&mck>;
status = "disabled";
+
+ nand_controller: nand-controller {
+ compatible = "atmel,at91sam9261-nand-controller";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges;
+ status = "disabled";
+ };
};
apb {
@@ -262,6 +273,11 @@
reg = <0xffffea00 0x200>;
};
+ smc: smc@ffffec00 {
+ compatible = "atmel,at91sam9260-smc", "syscon";
+ reg = <0xffffec00 0x200>;
+ };
+
matrix: matrix@ffffee00 {
compatible = "atmel,at91sam9261-matrix", "syscon";
reg = <0xffffee00 0x200>;
@@ -362,9 +378,13 @@
};
nand {
- pinctrl_nand: nand-0 {
+ pinctrl_nand_rb: nand-rb-0 {
+ atmel,pins =
+ <AT91_PIOC 15 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
+ };
+
+ pinctrl_nand_cs: nand-cs-0 {
atmel,pins =
- <AT91_PIOC 15 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>,
<AT91_PIOC 14 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
};
};
diff --git a/arch/arm/boot/dts/at91sam9261ek.dts b/arch/arm/boot/dts/at91sam9261ek.dts
index 55bd51f07fa6..157e1493e6eb 100644
--- a/arch/arm/boot/dts/at91sam9261ek.dts
+++ b/arch/arm/boot/dts/at91sam9261ek.dts
@@ -68,40 +68,59 @@
};
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "soft";
- nand-on-flash-bbt;
+ ebi: ebi@10000000 {
status = "okay";
- at91bootstrap@0 {
- label = "at91bootstrap";
- reg = <0x0 0x40000>;
- };
-
- bootloader@40000 {
- label = "bootloader";
- reg = <0x40000 0x80000>;
- };
-
- bootloaderenv@c0000 {
- label = "bootloader env";
- reg = <0xc0000 0xc0000>;
- };
-
- dtb@180000 {
- label = "device tree";
- reg = <0x180000 0x80000>;
- };
-
- kernel@200000 {
- label = "kernel";
- reg = <0x200000 0x600000>;
- };
-
- rootfs@800000 {
- label = "rootfs";
- reg = <0x800000 0x0f800000>;
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_cs &pinctrl_nand_rb>;
+ pinctrl-names = "default";
+
+ nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ rb-gpios = <&pioC 15 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&pioC 14 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "soft";
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x40000>;
+ };
+
+ bootloader@40000 {
+ label = "bootloader";
+ reg = <0x40000 0x80000>;
+ };
+
+ bootloaderenv@c0000 {
+ label = "bootloader env";
+ reg = <0xc0000 0xc0000>;
+ };
+
+ dtb@180000 {
+ label = "device tree";
+ reg = <0x180000 0x80000>;
+ };
+
+ kernel@200000 {
+ label = "kernel";
+ reg = <0x200000 0x600000>;
+ };
+
+ rootfs@800000 {
+ label = "rootfs";
+ reg = <0x800000 0x0f800000>;
+ };
+ };
+ };
};
};
diff --git a/arch/arm/boot/dts/at91sam9263.dtsi b/arch/arm/boot/dts/at91sam9263.dtsi
index a1888f6d892b..ed4b564f8de5 100644
--- a/arch/arm/boot/dts/at91sam9263.dtsi
+++ b/arch/arm/boot/dts/at91sam9263.dtsi
@@ -361,11 +361,26 @@
reg = <0xffffe200 0x200>;
};
+ smc0: smc@ffffe400 {
+ compatible = "atmel,at91sam9260-smc", "syscon";
+ reg = <0xffffe400 0x200>;
+ };
+
ramc1: ramc@ffffe800 {
compatible = "atmel,at91sam9260-sdramc";
reg = <0xffffe800 0x200>;
};
+ smc1: smc@ffffea00 {
+ compatible = "atmel,at91sam9260-smc", "syscon";
+ reg = <0xffffea00 0x200>;
+ };
+
+ matrix: matrix@ffffec00 {
+ compatible = "atmel,at91sam9263-matrix", "syscon";
+ reg = <0xffffec00 0x200>;
+ };
+
pit: timer@fffffd30 {
compatible = "atmel,at91sam9260-pit";
reg = <0xfffffd30 0xf>;
@@ -472,10 +487,14 @@
};
nand {
- pinctrl_nand: nand-0 {
+ pinctrl_nand_rb: nand-rb-0 {
+ atmel,pins =
+ <AT91_PIOA 22 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
+ };
+
+ pinctrl_nand_cs: nand-cs-0 {
atmel,pins =
- <AT91_PIOA 22 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP /* PA22 gpio RDY pin pull_up*/
- AT91_PIOD 15 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>; /* PD15 gpio enable pin pull_up */
+ <AT91_PIOD 15 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
};
};
@@ -991,24 +1010,6 @@
status = "disabled";
};
- nand0: nand@40000000 {
- compatible = "atmel,at91rm9200-nand";
- #address-cells = <1>;
- #size-cells = <1>;
- reg = <0x40000000 0x10000000
- 0xffffe000 0x200
- >;
- atmel,nand-addr-offset = <21>;
- atmel,nand-cmd-offset = <22>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_nand>;
- gpios = <&pioA 22 GPIO_ACTIVE_HIGH
- &pioD 15 GPIO_ACTIVE_HIGH
- 0
- >;
- status = "disabled";
- };
-
usb0: ohci@00a00000 {
compatible = "atmel,at91rm9200-ohci", "usb-ohci";
reg = <0x00a00000 0x100000>;
@@ -1017,6 +1018,52 @@
clock-names = "ohci_clk", "hclk", "uhpck";
status = "disabled";
};
+
+ ebi0: ebi@10000000 {
+ compatible = "atmel,at91sam9263-ebi0";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ atmel,smc = <&smc0>;
+ atmel,matrix = <&matrix>;
+ reg = <0x10000000 0x80000000>;
+ ranges = <0x0 0x0 0x10000000 0x10000000
+ 0x1 0x0 0x20000000 0x10000000
+ 0x2 0x0 0x30000000 0x10000000
+ 0x3 0x0 0x40000000 0x10000000
+ 0x4 0x0 0x50000000 0x10000000
+ 0x5 0x0 0x60000000 0x10000000>;
+ clocks = <&mck>;
+ status = "disabled";
+
+ nand_controller0: nand-controller {
+ compatible = "atmel,at91sam9260-nand-controller";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges;
+ status = "disabled";
+ };
+ };
+
+ ebi1: ebi@70000000 {
+ compatible = "atmel,at91sam9263-ebi1";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ atmel,smc = <&smc1>;
+ atmel,matrix = <&matrix>;
+ reg = <0x80000000 0x20000000>;
+ ranges = <0x0 0x0 0x80000000 0x10000000
+ 0x1 0x0 0x90000000 0x10000000>;
+ clocks = <&mck>;
+ status = "disabled";
+
+ nand_controller1: nand-controller {
+ compatible = "atmel,at91sam9260-nand-controller";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges;
+ status = "disabled";
+ };
+ };
};
i2c-gpio-0 {
diff --git a/arch/arm/boot/dts/at91sam9263ek.dts b/arch/arm/boot/dts/at91sam9263ek.dts
index 127cc42e9e29..10a0925da10e 100644
--- a/arch/arm/boot/dts/at91sam9263ek.dts
+++ b/arch/arm/boot/dts/at91sam9263ek.dts
@@ -125,50 +125,69 @@
};
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "soft";
- nand-on-flash-bbt = <1>;
+ ebi0: ebi@10000000 {
status = "okay";
- at91bootstrap@0 {
- label = "at91bootstrap";
- reg = <0x0 0x20000>;
- };
-
- barebox@20000 {
- label = "barebox";
- reg = <0x20000 0x40000>;
- };
-
- bareboxenv@60000 {
- label = "bareboxenv";
- reg = <0x60000 0x20000>;
- };
-
- bareboxenv2@80000 {
- label = "bareboxenv2";
- reg = <0x80000 0x20000>;
- };
-
- oftree@80000 {
- label = "oftree";
- reg = <0xa0000 0x20000>;
- };
-
- kernel@a0000 {
- label = "kernel";
- reg = <0xc0000 0x400000>;
- };
-
- rootfs@4a0000 {
- label = "rootfs";
- reg = <0x4c0000 0x7800000>;
- };
-
- data@7ca0000 {
- label = "data";
- reg = <0x7cc0000 0x8340000>;
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_cs &pinctrl_nand_rb>;
+ pinctrl-names = "default";
+
+ nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ rb-gpios = <&pioA 22 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&pioA 15 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "soft";
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x20000>;
+ };
+
+ barebox@20000 {
+ label = "barebox";
+ reg = <0x20000 0x40000>;
+ };
+
+ bareboxenv@60000 {
+ label = "bareboxenv";
+ reg = <0x60000 0x20000>;
+ };
+
+ bareboxenv2@80000 {
+ label = "bareboxenv2";
+ reg = <0x80000 0x20000>;
+ };
+
+ oftree@80000 {
+ label = "oftree";
+ reg = <0xa0000 0x20000>;
+ };
+
+ kernel@a0000 {
+ label = "kernel";
+ reg = <0xc0000 0x400000>;
+ };
+
+ rootfs@4a0000 {
+ label = "rootfs";
+ reg = <0x4c0000 0x7800000>;
+ };
+
+ data@7ca0000 {
+ label = "data";
+ reg = <0x7cc0000 0x8340000>;
+ };
+ };
+ };
};
};
diff --git a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
index 27847a47c108..ac9a1511e239 100644
--- a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
+++ b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
@@ -123,50 +123,69 @@
};
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "soft";
- nand-on-flash-bbt;
+ ebi: ebi@10000000 {
status = "okay";
- at91bootstrap@0 {
- label = "at91bootstrap";
- reg = <0x0 0x20000>;
- };
-
- barebox@20000 {
- label = "barebox";
- reg = <0x20000 0x40000>;
- };
-
- bareboxenv@60000 {
- label = "bareboxenv";
- reg = <0x60000 0x20000>;
- };
-
- bareboxenv2@80000 {
- label = "bareboxenv2";
- reg = <0x80000 0x20000>;
- };
-
- oftree@80000 {
- label = "oftree";
- reg = <0xa0000 0x20000>;
- };
-
- kernel@a0000 {
- label = "kernel";
- reg = <0xc0000 0x400000>;
- };
-
- rootfs@4a0000 {
- label = "rootfs";
- reg = <0x4c0000 0x7800000>;
- };
-
- data@7ca0000 {
- label = "data";
- reg = <0x7cc0000 0x8340000>;
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_cs &pinctrl_nand_rb>;
+ pinctrl-names = "default";
+
+ nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ rb-gpios = <&pioC 13 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&pioC 14 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "soft";
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x20000>;
+ };
+
+ barebox@20000 {
+ label = "barebox";
+ reg = <0x20000 0x40000>;
+ };
+
+ bareboxenv@60000 {
+ label = "bareboxenv";
+ reg = <0x60000 0x20000>;
+ };
+
+ bareboxenv2@80000 {
+ label = "bareboxenv2";
+ reg = <0x80000 0x20000>;
+ };
+
+ oftree@80000 {
+ label = "oftree";
+ reg = <0xa0000 0x20000>;
+ };
+
+ kernel@a0000 {
+ label = "kernel";
+ reg = <0xc0000 0x400000>;
+ };
+
+ rootfs@4a0000 {
+ label = "rootfs";
+ reg = <0x4c0000 0x7800000>;
+ };
+
+ data@7ca0000 {
+ label = "data";
+ reg = <0x7cc0000 0x8340000>;
+ };
+ };
+ };
};
};
diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi
index e567d5fd3f9d..64fa3f9a39d3 100644
--- a/arch/arm/boot/dts/at91sam9g45.dtsi
+++ b/arch/arm/boot/dts/at91sam9g45.dtsi
@@ -113,6 +113,16 @@
clock-names = "ddrck";
};
+ smc: smc@ffffe800 {
+ compatible = "atmel,at91sam9260-smc", "syscon";
+ reg = <0xffffe800 0x200>;
+ };
+
+ matrix: matrix@ffffea00 {
+ compatible = "atmel,at91sam9g45-matrix", "syscon";
+ reg = <0xffffea00 0x200>;
+ };
+
pmc: pmc@fffffc00 {
compatible = "atmel,at91sam9g45-pmc", "syscon";
reg = <0xfffffc00 0x100>;
@@ -445,6 +455,16 @@
>;
/* shared pinctrl settings */
+ ac97 {
+ pinctrl_ac97: ac97-0 {
+ atmel,pins =
+ <AT91_PIOD 6 AT91_PERIPH_A AT91_PINCTRL_NONE /* AC97RX */
+ AT91_PIOD 7 AT91_PERIPH_A AT91_PINCTRL_NONE /* AC97TX */
+ AT91_PIOD 8 AT91_PERIPH_A AT91_PINCTRL_NONE /* AC97FS */
+ AT91_PIOD 9 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* AC97CK */
+ };
+ };
+
adc0 {
pinctrl_adc0_adtrg: adc0_adtrg {
atmel,pins = <AT91_PIOD 28 AT91_PERIPH_A AT91_PINCTRL_NONE>;
@@ -601,10 +621,14 @@
};
nand {
- pinctrl_nand: nand-0 {
+ pinctrl_nand_rb: nand-rb-0 {
atmel,pins =
- <AT91_PIOC 8 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP /* PC8 gpio RDY pin pull_up*/
- AT91_PIOC 14 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>; /* PC14 gpio enable pin pull_up */
+ <AT91_PIOC 8 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
+ };
+
+ pinctrl_nand_cs: nand-cs-0 {
+ atmel,pins =
+ <AT91_PIOC 14 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
};
};
@@ -1029,6 +1053,17 @@
status = "disabled";
};
+ ac97: sound@fffac000 {
+ compatible = "atmel,at91sam9263-ac97c";
+ reg = <0xfffac000 0x4000>;
+ interrupts = <24 IRQ_TYPE_LEVEL_HIGH 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ac97>;
+ clocks = <&ac97_clk>;
+ clock-names = "ac97_clk";
+ status = "disabled";
+ };
+
adc0: adc@fffb0000 {
#address-cells = <1>;
#size-cells = <0>;
@@ -1278,25 +1313,6 @@
status = "disabled";
};
- nand0: nand@40000000 {
- compatible = "atmel,at91rm9200-nand";
- #address-cells = <1>;
- #size-cells = <1>;
- reg = <0x40000000 0x10000000
- 0xffffe200 0x200
- >;
- atmel,nand-addr-offset = <21>;
- atmel,nand-cmd-offset = <22>;
- atmel,nand-has-dma;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_nand>;
- gpios = <&pioC 8 GPIO_ACTIVE_HIGH
- &pioC 14 GPIO_ACTIVE_HIGH
- 0
- >;
- status = "disabled";
- };
-
usb0: ohci@00700000 {
compatible = "atmel,at91rm9200-ohci", "usb-ohci";
reg = <0x00700000 0x100000>;
@@ -1314,6 +1330,31 @@
clock-names = "usb_clk", "ehci_clk";
status = "disabled";
};
+
+ ebi: ebi@10000000 {
+ compatible = "atmel,at91sam9g45-ebi";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ atmel,smc = <&smc>;
+ atmel,matrix = <&matrix>;
+ reg = <0x10000000 0x80000000>;
+ ranges = <0x0 0x0 0x10000000 0x10000000
+ 0x1 0x0 0x20000000 0x10000000
+ 0x2 0x0 0x30000000 0x10000000
+ 0x3 0x0 0x40000000 0x10000000
+ 0x4 0x0 0x50000000 0x10000000
+ 0x5 0x0 0x60000000 0x10000000>;
+ clocks = <&mck>;
+ status = "disabled";
+
+ nand_controller: nand-controller {
+ compatible = "atmel,at91sam9g45-nand-controller";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges;
+ status = "disabled";
+ };
+ };
};
i2c-gpio-0 {
diff --git a/arch/arm/boot/dts/at91sam9m10g45ek.dts b/arch/arm/boot/dts/at91sam9m10g45ek.dts
index 2400c99134f7..94c52c555f83 100644
--- a/arch/arm/boot/dts/at91sam9m10g45ek.dts
+++ b/arch/arm/boot/dts/at91sam9m10g45ek.dts
@@ -166,6 +166,10 @@
status = "okay";
};
+ ac97: sound@fffac000 {
+ status = "okay";
+ };
+
adc0: adc@fffb0000 {
pinctrl-names = "default";
pinctrl-0 = <
@@ -245,25 +249,44 @@
};
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "soft";
- nand-on-flash-bbt;
+ ebi: ebi@10000000 {
status = "okay";
- boot@0 {
- label = "bootstrap/uboot/kernel";
- reg = <0x0 0x400000>;
- };
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_cs &pinctrl_nand_rb>;
+ pinctrl-names = "default";
- rootfs@400000 {
- label = "rootfs";
- reg = <0x400000 0x3C00000>;
- };
+ nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ rb-gpios = <&pioC 8 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&pioC 14 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "soft";
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ boot@0 {
+ label = "bootstrap/uboot/kernel";
+ reg = <0x0 0x400000>;
+ };
+
+ rootfs@400000 {
+ label = "rootfs";
+ reg = <0x400000 0x3C00000>;
+ };
- data@4000000 {
- label = "data";
- reg = <0x4000000 0xC000000>;
+ data@4000000 {
+ label = "data";
+ reg = <0x4000000 0xC000000>;
+ };
+ };
+ };
};
};
diff --git a/arch/arm/boot/dts/at91sam9n12.dtsi b/arch/arm/boot/dts/at91sam9n12.dtsi
index f43d7695352d..06516d02d351 100644
--- a/arch/arm/boot/dts/at91sam9n12.dtsi
+++ b/arch/arm/boot/dts/at91sam9n12.dtsi
@@ -89,6 +89,17 @@
atmel,external-irqs = <31>;
};
+ matrix: matrix@ffffde00 {
+ compatible = "atmel,at91sam9n12-matrix", "syscon";
+ reg = <0xffffde00 0x100>;
+ };
+
+ pmecc: ecc-engine@ffffe000 {
+ compatible = "atmel,at91sam9g45-pmecc";
+ reg = <0xffffe000 0x600>,
+ <0xffffe600 0x200>;
+ };
+
ramc0: ramc@ffffe800 {
compatible = "atmel,at91sam9g45-ddramc";
reg = <0xffffe800 0x200>;
@@ -96,6 +107,11 @@
clock-names = "ddrck";
};
+ smc: smc@ffffea00 {
+ compatible = "atmel,at91sam9260-smc", "syscon";
+ reg = <0xffffea00 0x200>;
+ };
+
pmc: pmc@fffffc00 {
compatible = "atmel,at91sam9n12-pmc", "syscon";
reg = <0xfffffc00 0x200>;
@@ -627,10 +643,14 @@
};
nand {
- pinctrl_nand: nand-0 {
+ pinctrl_nand_rb: nand-rb-0 {
atmel,pins =
- <AT91_PIOD 5 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP /* PD5 gpio RDY pin pull_up*/
- AT91_PIOD 4 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>; /* PD4 gpio enable pin pull_up */
+ <AT91_PIOD 5 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
+ };
+
+ pinctrl_nand_cs: nand-cs-0 {
+ atmel,pins =
+ <AT91_PIOD 4 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
};
};
@@ -998,28 +1018,6 @@
};
};
- nand0: nand@40000000 {
- compatible = "atmel,at91rm9200-nand";
- #address-cells = <1>;
- #size-cells = <1>;
- reg = < 0x40000000 0x10000000
- 0xffffe000 0x00000600
- 0xffffe600 0x00000200
- 0x00108000 0x00018000
- >;
- atmel,pmecc-lookup-table-offset = <0x0 0x8000>;
- atmel,nand-addr-offset = <21>;
- atmel,nand-cmd-offset = <22>;
- atmel,nand-has-dma;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_nand>;
- gpios = <&pioD 5 GPIO_ACTIVE_HIGH
- &pioD 4 GPIO_ACTIVE_HIGH
- 0
- >;
- status = "disabled";
- };
-
usb0: ohci@00500000 {
compatible = "atmel,at91rm9200-ohci", "usb-ohci";
reg = <0x00500000 0x00100000>;
@@ -1028,6 +1026,32 @@
clock-names = "ohci_clk", "hclk", "uhpck";
status = "disabled";
};
+
+ ebi: ebi@10000000 {
+ compatible = "atmel,at91sam9x5-ebi";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ atmel,smc = <&smc>;
+ atmel,matrix = <&matrix>;
+ reg = <0x10000000 0x60000000>;
+ ranges = <0x0 0x0 0x10000000 0x10000000
+ 0x1 0x0 0x20000000 0x10000000
+ 0x2 0x0 0x30000000 0x10000000
+ 0x3 0x0 0x40000000 0x10000000
+ 0x4 0x0 0x50000000 0x10000000
+ 0x5 0x0 0x60000000 0x10000000>;
+ clocks = <&mck>;
+ status = "disabled";
+
+ nand_controller: nand-controller {
+ compatible = "atmel,at91sam9g45-nand-controller";
+ ecc-engine = <&pmecc>;
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges;
+ status = "disabled";
+ };
+ };
};
i2c-gpio-0 {
diff --git a/arch/arm/boot/dts/at91sam9n12ek.dts b/arch/arm/boot/dts/at91sam9n12ek.dts
index 626c67d66626..5bea8c59b115 100644
--- a/arch/arm/boot/dts/at91sam9n12ek.dts
+++ b/arch/arm/boot/dts/at91sam9n12ek.dts
@@ -147,14 +147,26 @@
};
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "hw";
- atmel,has-pmecc;
- atmel,pmecc-cap = <2>;
- atmel,pmecc-sector-size = <512>;
- nand-on-flash-bbt;
+ ebi: ebi@10000000 {
status = "okay";
+
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_cs &pinctrl_nand_rb>;
+ pinctrl-names = "default";
+
+ nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ rb-gpios = <&pioD 5 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&pioD 4 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "soft";
+ nand-ecc-strength = <2>;
+ nand-ecc-step-size = <512>;
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+ };
+ };
};
usb0: ohci@00500000 {
diff --git a/arch/arm/boot/dts/at91sam9rl.dtsi b/arch/arm/boot/dts/at91sam9rl.dtsi
index f4c129a98f17..7768342a6638 100644
--- a/arch/arm/boot/dts/at91sam9rl.dtsi
+++ b/arch/arm/boot/dts/at91sam9rl.dtsi
@@ -92,21 +92,29 @@
status = "disabled";
};
- nand0: nand@40000000 {
- compatible = "atmel,at91rm9200-nand";
- #address-cells = <1>;
+ ebi: ebi@10000000 {
+ compatible = "atmel,at91sam9rl-ebi";
+ #address-cells = <2>;
#size-cells = <1>;
- reg = <0x40000000 0x10000000>,
- <0xffffe800 0x200>;
- atmel,nand-addr-offset = <21>;
- atmel,nand-cmd-offset = <22>;
- atmel,nand-has-dma;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_nand>;
- gpios = <&pioD 17 GPIO_ACTIVE_HIGH>,
- <&pioB 6 GPIO_ACTIVE_HIGH>,
- <0>;
+ atmel,smc = <&smc>;
+ atmel,matrix = <&matrix>;
+ reg = <0x10000000 0x80000000>;
+ ranges = <0x0 0x0 0x10000000 0x10000000
+ 0x1 0x0 0x20000000 0x10000000
+ 0x2 0x0 0x30000000 0x10000000
+ 0x3 0x0 0x40000000 0x10000000
+ 0x4 0x0 0x50000000 0x10000000
+ 0x5 0x0 0x60000000 0x10000000>;
+ clocks = <&mck>;
status = "disabled";
+
+ nand_controller: nand-controller {
+ compatible = "atmel,at91sam9g45-nand-controller";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges;
+ status = "disabled";
+ };
};
apb {
@@ -364,6 +372,16 @@
reg = <0xffffea00 0x200>;
};
+ smc: smc@ffffec00 {
+ compatible = "atmel,at91sam9260-smc", "syscon";
+ reg = <0xffffec00 0x200>;
+ };
+
+ matrix: matrix@ffffee00 {
+ compatible = "atmel,at91sam9rl-matrix", "syscon";
+ reg = <0xffffee00 0x200>;
+ };
+
aic: interrupt-controller@fffff000 {
#interrupt-cells = <3>;
compatible = "atmel,at91rm9200-aic";
@@ -443,6 +461,14 @@
};
};
+ ebi {
+ pinctrl_ebi_addr_nand: ebi-addr-0 {
+ atmel,pins =
+ <AT91_PIOB 2 AT91_PERIPH_A AT91_PINCTRL_NONE>,
+ <AT91_PIOB 3 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+ };
+
fb {
pinctrl_fb: fb-0 {
atmel,pins =
@@ -507,28 +533,21 @@
};
nand {
- pinctrl_nand: nand-0 {
+ pinctrl_nand_rb: nand-rb-0 {
atmel,pins =
- <AT91_PIOD 17 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>,
- <AT91_PIOB 6 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
+ <AT91_PIOD 17 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
};
- pinctrl_nand0_ale_cle: nand_ale_cle-0 {
+ pinctrl_nand_cs: nand-cs-0 {
atmel,pins =
- <AT91_PIOB 2 AT91_PERIPH_A AT91_PINCTRL_NONE>,
- <AT91_PIOB 3 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ <AT91_PIOB 6 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
};
- pinctrl_nand0_oe_we: nand_oe_we-0 {
+ pinctrl_nand_oe_we: nand-oe-we-0 {
atmel,pins =
<AT91_PIOB 4 AT91_PERIPH_A AT91_PINCTRL_NONE>,
<AT91_PIOB 5 AT91_PERIPH_A AT91_PINCTRL_NONE>;
};
-
- pinctrl_nand0_cs: nand_cs-0 {
- atmel,pins =
- <AT91_PIOB 6 AT91_PERIPH_A AT91_PINCTRL_NONE>;
- };
};
pwm0 {
diff --git a/arch/arm/boot/dts/at91sam9rlek.dts b/arch/arm/boot/dts/at91sam9rlek.dts
index 2e567d90fba8..9047c168298a 100644
--- a/arch/arm/boot/dts/at91sam9rlek.dts
+++ b/arch/arm/boot/dts/at91sam9rlek.dts
@@ -63,40 +63,63 @@
};
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "soft";
- nand-on-flash-bbt = <1>;
+ ebi: ebi@10000000 {
+ pinctrl-0 = <&pinctrl_ebi_addr_nand>;
+ pinctrl-names = "default";
status = "okay";
- at91bootstrap@0 {
- label = "at91bootstrap";
- reg = <0x0 0x40000>;
- };
-
- bootloader@40000 {
- label = "bootloader";
- reg = <0x40000 0x80000>;
- };
-
- bootloaderenv@c0000 {
- label = "bootloader env";
- reg = <0xc0000 0xc0000>;
- };
-
- dtb@180000 {
- label = "device tree";
- reg = <0x180000 0x80000>;
- };
-
- kernel@200000 {
- label = "kernel";
- reg = <0x200000 0x600000>;
- };
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_oe_we
+ &pinctrl_nand_cs
+ &pinctrl_nand_rb>;
+ pinctrl-names = "default";
- rootfs@800000 {
- label = "rootfs";
- reg = <0x800000 0x0f800000>;
+ nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ rb-gpios = <&pioD 17 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&pioB 6 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "soft";
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x40000>;
+ };
+
+ bootloader@40000 {
+ label = "bootloader";
+ reg = <0x40000 0x80000>;
+ };
+
+ bootloaderenv@c0000 {
+ label = "bootloader env";
+ reg = <0xc0000 0xc0000>;
+ };
+
+ dtb@180000 {
+ label = "device tree";
+ reg = <0x180000 0x80000>;
+ };
+
+ kernel@200000 {
+ label = "kernel";
+ reg = <0x200000 0x600000>;
+ };
+
+ rootfs@800000 {
+ label = "rootfs";
+ reg = <0x800000 0x0f800000>;
+ };
+ };
+ };
};
};
diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index f66bae925705..57f307541d2e 100644
--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi
@@ -97,6 +97,17 @@
atmel,external-irqs = <31>;
};
+ matrix: matrix@ffffde00 {
+ compatible = "atmel,at91sam9x5-matrix", "syscon";
+ reg = <0xffffde00 0x100>;
+ };
+
+ pmecc: ecc-engine@ffffe000 {
+ compatible = "atmel,at91sam9g45-pmecc";
+ reg = <0xffffe000 0x600>,
+ <0xffffe600 0x200>;
+ };
+
ramc0: ramc@ffffe800 {
compatible = "atmel,at91sam9g45-ddramc";
reg = <0xffffe800 0x200>;
@@ -104,6 +115,11 @@
clock-names = "ddrck";
};
+ smc: smc@ffffea00 {
+ compatible = "atmel,at91sam9260-smc", "syscon";
+ reg = <0xffffea00 0x200>;
+ };
+
pmc: pmc@fffffc00 {
compatible = "atmel,at91sam9x5-pmc", "syscon";
reg = <0xfffffc00 0x200>;
@@ -465,6 +481,38 @@
};
};
+ ebi {
+ pinctrl_ebi_data_0_7: ebi-data-lsb-0 {
+ atmel,pins =
+ <AT91_PIOD 6 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOD 7 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOD 8 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOD 9 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOD 10 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOD 11 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOD 12 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOD 13 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_data_8_15: ebi-data-msb-0 {
+ atmel,pins =
+ <AT91_PIOD 14 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOD 15 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOD 16 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOD 17 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOD 18 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOD 19 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOD 20 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOD 21 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_addr_nand: ebi-addr-0 {
+ atmel,pins =
+ <AT91_PIOD 2 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOD 3 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+ };
+
usart0 {
pinctrl_usart0: usart0-0 {
atmel,pins =
@@ -551,34 +599,20 @@
};
nand {
- pinctrl_nand: nand-0 {
+ pinctrl_nand_oe_we: nand-oe-we-0 {
+ atmel,pins =
+ <AT91_PIOD 0 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOD 1 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_nand_rb: nand-rb-0 {
atmel,pins =
- <AT91_PIOD 0 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD0 periph A Read Enable */
- AT91_PIOD 1 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD1 periph A Write Enable */
- AT91_PIOD 2 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD2 periph A Address Latch Enable */
- AT91_PIOD 3 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD3 periph A Command Latch Enable */
- AT91_PIOD 4 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP /* PD4 gpio Chip Enable pin pull_up */
- AT91_PIOD 5 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP /* PD5 gpio RDY/BUSY pin pull_up */
- AT91_PIOD 6 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD6 periph A Data bit 0 */
- AT91_PIOD 7 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD7 periph A Data bit 1 */
- AT91_PIOD 8 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD8 periph A Data bit 2 */
- AT91_PIOD 9 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD9 periph A Data bit 3 */
- AT91_PIOD 10 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD10 periph A Data bit 4 */
- AT91_PIOD 11 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD11 periph A Data bit 5 */
- AT91_PIOD 12 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD12 periph A Data bit 6 */
- AT91_PIOD 13 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* PD13 periph A Data bit 7 */
- };
-
- pinctrl_nand_16bits: nand_16bits-0 {
+ <AT91_PIOD 5 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
+ };
+
+ pinctrl_nand_cs: nand-cs-0 {
atmel,pins =
- <AT91_PIOD 14 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD14 periph A Data bit 8 */
- AT91_PIOD 15 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD15 periph A Data bit 9 */
- AT91_PIOD 16 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD16 periph A Data bit 10 */
- AT91_PIOD 17 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD17 periph A Data bit 11 */
- AT91_PIOD 18 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD18 periph A Data bit 12 */
- AT91_PIOD 19 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD19 periph A Data bit 13 */
- AT91_PIOD 20 AT91_PERIPH_A AT91_PINCTRL_NONE /* PD20 periph A Data bit 14 */
- AT91_PIOD 21 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* PD21 periph A Data bit 15 */
+ <AT91_PIOD 4 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
};
};
@@ -1197,28 +1231,6 @@
};
};
- nand0: nand@40000000 {
- compatible = "atmel,at91rm9200-nand";
- #address-cells = <1>;
- #size-cells = <1>;
- reg = <0x40000000 0x10000000
- 0xffffe000 0x600 /* PMECC Registers */
- 0xffffe600 0x200 /* PMECC Error Location Registers */
- 0x00108000 0x18000 /* PMECC looup table in ROM code */
- >;
- atmel,pmecc-lookup-table-offset = <0x0 0x8000>;
- atmel,nand-addr-offset = <21>;
- atmel,nand-cmd-offset = <22>;
- atmel,nand-has-dma;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_nand>;
- gpios = <&pioD 5 GPIO_ACTIVE_HIGH
- &pioD 4 GPIO_ACTIVE_HIGH
- 0
- >;
- status = "disabled";
- };
-
usb0: ohci@00600000 {
compatible = "atmel,at91rm9200-ohci", "usb-ohci";
reg = <0x00600000 0x100000>;
@@ -1236,6 +1248,32 @@
clock-names = "usb_clk", "ehci_clk";
status = "disabled";
};
+
+ ebi: ebi@10000000 {
+ compatible = "atmel,at91sam9x5-ebi";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ atmel,smc = <&smc>;
+ atmel,matrix = <&matrix>;
+ reg = <0x10000000 0x60000000>;
+ ranges = <0x0 0x0 0x10000000 0x10000000
+ 0x1 0x0 0x20000000 0x10000000
+ 0x2 0x0 0x30000000 0x10000000
+ 0x3 0x0 0x40000000 0x10000000
+ 0x4 0x0 0x50000000 0x10000000
+ 0x5 0x0 0x60000000 0x10000000>;
+ clocks = <&mck>;
+ status = "disabled";
+
+ nand_controller: nand-controller {
+ compatible = "atmel,at91sam9g45-nand-controller";
+ ecc-engine = <&pmecc>;
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges;
+ status = "disabled";
+ };
+ };
};
i2c-gpio-0 {
diff --git a/arch/arm/boot/dts/at91sam9x5cm.dtsi b/arch/arm/boot/dts/at91sam9x5cm.dtsi
index b098ad8cd93a..bdeaa0b64a5b 100644
--- a/arch/arm/boot/dts/at91sam9x5cm.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5cm.dtsi
@@ -37,38 +37,61 @@
};
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "hw";
- atmel,has-pmecc; /* Enable PMECC */
- atmel,pmecc-cap = <2>;
- atmel,pmecc-sector-size = <512>;
- nand-on-flash-bbt;
+ ebi: ebi@10000000 {
+ pinctrl-0 = <&pinctrl_ebi_addr_nand
+ &pinctrl_ebi_data_0_7>;
+ pinctrl-names = "default";
status = "okay";
- at91bootstrap@0 {
- label = "at91bootstrap";
- reg = <0x0 0x40000>;
- };
-
- uboot@40000 {
- label = "u-boot";
- reg = <0x40000 0x80000>;
- };
-
- ubootenv@c0000 {
- label = "U-Boot Env";
- reg = <0xc0000 0x140000>;
- };
-
- kernel@200000 {
- label = "kernel";
- reg = <0x200000 0x600000>;
- };
-
- rootfs@800000 {
- label = "rootfs";
- reg = <0x800000 0x1f800000>;
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_oe_we
+ &pinctrl_nand_cs
+ &pinctrl_nand_rb>;
+ pinctrl-names = "default";
+
+ nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ rb-gpios = <&pioD 5 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&pioD 4 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "hw";
+ nand-ecc-strength = <2>;
+ nand-ecc-step-size = <512>;
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x40000>;
+ };
+
+ uboot@40000 {
+ label = "u-boot";
+ reg = <0x40000 0x80000>;
+ };
+
+ ubootenv@c0000 {
+ label = "U-Boot Env";
+ reg = <0xc0000 0x140000>;
+ };
+
+ kernel@200000 {
+ label = "kernel";
+ reg = <0x200000 0x600000>;
+ };
+
+ rootfs@800000 {
+ label = "rootfs";
+ reg = <0x800000 0x1f800000>;
+ };
+ };
+ };
};
};
};
diff --git a/arch/arm/boot/dts/axp209.dtsi b/arch/arm/boot/dts/axp209.dtsi
index 9677dd5cf6b6..3c8fa26e87b7 100644
--- a/arch/arm/boot/dts/axp209.dtsi
+++ b/arch/arm/boot/dts/axp209.dtsi
@@ -64,6 +64,11 @@
#gpio-cells = <2>;
};
+ battery_power_supply: battery-power-supply {
+ compatible = "x-powers,axp209-battery-power-supply";
+ status = "disabled";
+ };
+
regulators {
/* Default work frequency for buck regulators */
x-powers,dcdc-freq = <1500>;
diff --git a/arch/arm/boot/dts/axp22x.dtsi b/arch/arm/boot/dts/axp22x.dtsi
index 67331c5f1714..87fb08e812ec 100644
--- a/arch/arm/boot/dts/axp22x.dtsi
+++ b/arch/arm/boot/dts/axp22x.dtsi
@@ -57,6 +57,11 @@
status = "disabled";
};
+ battery_power_supply: battery-power-supply {
+ compatible = "x-powers,axp221-battery-power-supply";
+ status = "disabled";
+ };
+
regulators {
/* Default work frequency for buck regulators */
x-powers,dcdc-freq = <3000>;
diff --git a/arch/arm/boot/dts/bcm-cygnus.dtsi b/arch/arm/boot/dts/bcm-cygnus.dtsi
index 9644fddb5e3c..7c957ea06c66 100644
--- a/arch/arm/boot/dts/bcm-cygnus.dtsi
+++ b/arch/arm/boot/dts/bcm-cygnus.dtsi
@@ -55,6 +55,11 @@
/include/ "bcm-cygnus-clock.dtsi"
+ pmu {
+ compatible = "arm,cortex-a9-pmu";
+ interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
core {
compatible = "simple-bus";
ranges = <0x00000000 0x19000000 0x1000000>;
@@ -119,6 +124,21 @@
compatible = "brcm,cygnus-pinmux";
reg = <0x0301d0c8 0x30>,
<0x0301d24c 0x2c>;
+
+ spi_0: spi_0 {
+ function = "spi0";
+ groups = "spi0_grp";
+ };
+
+ spi_1: spi_1 {
+ function = "spi1";
+ groups = "spi1_grp";
+ };
+
+ spi_2: spi_2 {
+ function = "spi2";
+ groups = "spi2_grp";
+ };
};
mailbox: mailbox@03024024 {
@@ -142,6 +162,55 @@
interrupts = <0>;
};
+ mdio: mdio@18002000 {
+ compatible = "brcm,iproc-mdio";
+ reg = <0x18002000 0x8>;
+ #size-cells = <1>;
+ #address-cells = <0>;
+ status = "disabled";
+
+ gphy0: ethernet-phy@0 {
+ reg = <0>;
+ };
+
+ gphy1: ethernet-phy@1 {
+ reg = <1>;
+ };
+ };
+
+ switch: switch@18007000 {
+ compatible = "brcm,bcm11360-srab", "brcm,cygnus-srab";
+ reg = <0x18007000 0x1000>;
+ status = "disabled";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ phy-handle = <&gphy0>;
+ phy-mode = "rgmii";
+ };
+
+ port@1 {
+ reg = <1>;
+ phy-handle = <&gphy1>;
+ phy-mode = "rgmii";
+ };
+
+ port@8 {
+ reg = <8>;
+ label = "cpu";
+ ethernet = <&eth0>;
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+ };
+ };
+ };
+
i2c0: i2c@18008000 {
compatible = "brcm,cygnus-iproc-i2c", "brcm,iproc-i2c";
reg = <0x18008000 0x100>;
@@ -251,6 +320,23 @@
};
};
+ dma0: dma@18018000 {
+ compatible = "arm,pl330", "arm,primecell";
+ reg = <0x18018000 0x1000>;
+ interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&apb_clk>;
+ clock-names = "apb_pclk";
+ #dma-cells = <1>;
+ };
+
uart0: serial@18020000 {
compatible = "snps,dw-apb-uart";
reg = <0x18020000 0x100>;
@@ -275,7 +361,7 @@
uart2: serial@18022000 {
compatible = "snps,dw-apb-uart";
- reg = <0x18020000 0x100>;
+ reg = <0x18022000 0x100>;
reg-shift = <2>;
reg-io-width = <4>;
interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
@@ -295,6 +381,71 @@
status = "disabled";
};
+ spi0: spi@18028000 {
+ compatible = "arm,pl022", "arm,primecell";
+ reg = <0x18028000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-0 = <&spi_0>;
+ clocks = <&axi81_clk>;
+ clock-names = "apb_pclk";
+ status = "disabled";
+ };
+
+ spi1: spi@18029000 {
+ compatible = "arm,pl022", "arm,primecell";
+ reg = <0x18029000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-0 = <&spi_1>;
+ clocks = <&axi81_clk>;
+ clock-names = "apb_pclk";
+ status = "disabled";
+ };
+
+ spi2: spi@1802a000 {
+ compatible = "arm,pl022", "arm,primecell";
+ reg = <0x1802a000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-0 = <&spi_2>;
+ clocks = <&axi81_clk>;
+ clock-names = "apb_pclk";
+ status = "disabled";
+ };
+
+ sdhci0: sdhci@18041000 {
+ compatible = "brcm,sdhci-iproc-cygnus";
+ reg = <0x18041000 0x100>;
+ interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&lcpll0 BCM_CYGNUS_LCPLL0_SDIO_CLK>;
+ bus-width = <4>;
+ sdhci,auto-cmd12;
+ status = "disabled";
+ };
+
+ eth0: ethernet@18042000 {
+ compatible = "brcm,amac";
+ reg = <0x18042000 0x1000>,
+ <0x18110000 0x1000>;
+ reg-names = "amac_base", "idm_base";
+ interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ sdhci1: sdhci@18043000 {
+ compatible = "brcm,sdhci-iproc-cygnus";
+ reg = <0x18043000 0x100>;
+ interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&lcpll0 BCM_CYGNUS_LCPLL0_SDIO_CLK>;
+ bus-width = <4>;
+ sdhci,auto-cmd12;
+ status = "disabled";
+ };
+
nand: nand@18046000 {
compatible = "brcm,nand-iproc", "brcm,brcmnand-v6.1";
reg = <0x18046000 0x600>, <0xf8105408 0x600>,
@@ -308,6 +459,33 @@
brcm,nand-has-wp;
};
+ ehci0: usb@18048000 {
+ compatible = "generic-ehci";
+ reg = <0x18048000 0x100>;
+ interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ ohci0: usb@18048800 {
+ compatible = "generic-ohci";
+ reg = <0x18048800 0x100>;
+ interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ v3d: v3d@180a2000 {
+ compatible = "brcm,cygnus-v3d";
+ reg = <0x180a2000 0x1000>;
+ clocks = <&mipipll BCM_CYGNUS_MIPIPLL_CH2_V3D>;
+ clock-names = "v3d_clk";
+ interrupts = <GIC_SPI 182 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ vc4: gpu {
+ compatible = "brcm,cygnus-vc4";
+ };
+
gpio_asiu: gpio@180a5000 {
compatible = "brcm,cygnus-asiu-gpio";
reg = <0x180a5000 0x668>;
@@ -396,5 +574,19 @@
interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";
};
+
+ keypad: keypad@180ac000 {
+ compatible = "brcm,bcm-keypad";
+ reg = <0x180ac000 0x14c>;
+ interrupts = <GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&asiu_clks BCM_CYGNUS_ASIU_KEYPAD_CLK>;
+ clock-names = "peri_clk";
+ clock-frequency = <31250>;
+ pull-up-enabled;
+ col-debounce-filter-period = <0>;
+ status-debounce-filter-period = <0>;
+ row-output-enabled;
+ status = "disabled";
+ };
};
};
diff --git a/arch/arm/boot/dts/bcm-nsp.dtsi b/arch/arm/boot/dts/bcm-nsp.dtsi
index fe6cba994a97..dff66974feed 100644
--- a/arch/arm/boot/dts/bcm-nsp.dtsi
+++ b/arch/arm/boot/dts/bcm-nsp.dtsi
@@ -215,6 +215,7 @@
interrupts = <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>;
sdhci,auto-cmd12;
clocks = <&lcpll0 BCM_NSP_LCPLL0_SDIO_CLK>;
+ dma-coherent;
status = "disabled";
};
@@ -224,6 +225,7 @@
<0x110000 0x1000>;
reg-names = "amac_base", "idm_base";
interrupts = <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
+ dma-coherent;
status = "disabled";
};
@@ -233,6 +235,7 @@
<0x111000 0x1000>;
reg-names = "amac_base", "idm_base";
interrupts = <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
+ dma-coherent;
status = "disabled";
};
@@ -242,6 +245,7 @@
<0x112000 0x1000>;
reg-names = "amac_base", "idm_base";
interrupts = <GIC_SPI 149 IRQ_TYPE_LEVEL_HIGH>;
+ dma-coherent;
status = "disabled";
};
@@ -252,6 +256,7 @@
#mbox-cells = <1>;
brcm,rx-status-len = <32>;
brcm,use-bcm-hdr;
+ dma-coherent;
};
nand: nand@26000 {
@@ -297,6 +302,32 @@
#size-cells = <0>;
};
+ xhci: usb@29000 {
+ compatible = "generic-xhci";
+ reg = <0x29000 0x1000>;
+ interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
+ phys = <&usb3_phy>;
+ phy-names = "usb3-phy";
+ dma-coherent;
+ status = "disabled";
+ };
+
+ ehci0: usb@2a000 {
+ compatible = "generic-ehci";
+ reg = <0x2a000 0x100>;
+ interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
+ dma-coherent;
+ status = "disabled";
+ };
+
+ ohci0: usb@2b000 {
+ compatible = "generic-ohci";
+ reg = <0x2b000 0x100>;
+ interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
+ dma-coherent;
+ status = "disabled";
+ };
+
crypto@2f000 {
compatible = "brcm,spum-nsp-crypto";
reg = <0x2f000 0x900>;
@@ -321,20 +352,6 @@
status = "disabled";
};
- ehci0: usb@2a000 {
- compatible = "generic-ehci";
- reg = <0x2a000 0x100>;
- interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
- status = "disabled";
- };
-
- ohci0: usb@2b000 {
- compatible = "generic-ohci";
- reg = <0x2b000 0x100>;
- interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
- status = "disabled";
- };
-
rng: rng@33000 {
compatible = "brcm,bcm-nsp-rng";
reg = <0x33000 0x14>;
@@ -376,6 +393,7 @@
#size-cells = <0>;
interrupts = <GIC_SPI 89 IRQ_TYPE_NONE>;
clock-frequency = <100000>;
+ dma-coherent;
status = "disabled";
};
@@ -413,6 +431,12 @@
<0x3f408 0x04>;
};
+ thermal: thermal@3f2c0 {
+ compatible = "brcm,ns-thermal";
+ reg = <0x3f2c0 0x10>;
+ #thermal-sensor-cells = <0>;
+ };
+
sata_phy: sata_phy@40100 {
compatible = "brcm,iproc-nsp-sata-phy";
reg = <0x40100 0x340>;
@@ -440,6 +464,7 @@
interrupts = <GIC_SPI 159 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
+ dma-coherent;
status = "disabled";
sata0: sata-port@0 {
@@ -454,6 +479,15 @@
phy-names = "sata-phy";
};
};
+
+ usb3_phy: usb3-phy@104000 {
+ compatible = "brcm,ns-bx-usb3-phy";
+ reg = <0x104000 0x1000>,
+ <0x032000 0x1000>;
+ reg-names = "dmp", "ccb-mii";
+ #phy-cells = <0>;
+ status = "disabled";
+ };
};
pcie0: pcie@18012000 {
@@ -477,6 +511,7 @@
*/
ranges = <0x82000000 0 0x08000000 0x08000000 0 0x8000000>;
+ dma-coherent;
status = "disabled";
msi-parent = <&msi0>;
@@ -513,6 +548,7 @@
*/
ranges = <0x82000000 0 0x40000000 0x40000000 0 0x8000000>;
+ dma-coherent;
status = "disabled";
msi-parent = <&msi1>;
@@ -549,6 +585,7 @@
*/
ranges = <0x82000000 0 0x48000000 0x48000000 0 0x8000000>;
+ dma-coherent;
status = "disabled";
msi-parent = <&msi2>;
@@ -563,4 +600,24 @@
brcm,pcie-msi-inten;
};
};
+
+ thermal-zones {
+ cpu-thermal {
+ polling-delay-passive = <0>;
+ polling-delay = <1000>;
+ coefficients = <(-556) 418000>;
+ thermal-sensors = <&thermal>;
+
+ trips {
+ cpu-crit {
+ temperature = <125000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ };
+ };
+ };
};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
index d0704540db6b..9f866491efdf 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
@@ -99,3 +99,9 @@
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio14>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-a.dts b/arch/arm/boot/dts/bcm2835-rpi-a.dts
index 46d078e29017..4b1af06c8dc0 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-a.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-a.dts
@@ -94,3 +94,9 @@
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio14>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
index 432088ebb0a1..a846f1e781d8 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
@@ -101,3 +101,9 @@
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio14>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
index 4133bc2cd9be..e860964e39fa 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
@@ -94,3 +94,9 @@
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio14>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b.dts b/arch/arm/boot/dts/bcm2835-rpi-b.dts
index 4d56fe3006b0..5d77f3f8c4c5 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-b.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-b.dts
@@ -89,3 +89,9 @@
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio14>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts b/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts
new file mode 100644
index 000000000000..b8565fc33eea
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts
@@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 2017 Stefan Wahren <stefan.wahren@i2se.com>
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/dts-v1/;
+#include "bcm2835.dtsi"
+#include "bcm2835-rpi.dtsi"
+#include "bcm283x-rpi-usb-host.dtsi"
+
+/ {
+ compatible = "raspberrypi,model-zero-w", "brcm,bcm2835";
+ model = "Raspberry Pi Zero W";
+
+ chosen {
+ /* 8250 auxiliary UART instead of pl011 */
+ stdout-path = "serial1:115200n8";
+ };
+
+ leds {
+ act {
+ gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
+ };
+ };
+
+ wifi_pwrseq: wifi-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ pinctrl-names = "default";
+ pinctrl-0 = <&wl_on>;
+ reset-gpios = <&gpio 41 GPIO_ACTIVE_LOW>;
+ };
+};
+
+&gpio {
+ /*
+ * This is based on the official GPU firmware DT blob.
+ *
+ * Legend:
+ * "NC" = not connected (no rail from the SoC)
+ * "FOO" = GPIO line named "FOO" on the schematic
+ * "FOO_N" = GPIO line named "FOO" on schematic, active low
+ */
+ gpio-line-names = "GPIO0",
+ "GPIO1",
+ "SDA1",
+ "SCL1",
+ "GPIO_GCLK",
+ "GPIO5",
+ "GPIO6",
+ "SPI_CE1_N",
+ "SPI_CE0_N",
+ "SPI_MISO",
+ "SPI_MOSI",
+ "SPI_SCLK",
+ "GPIO12",
+ "GPIO13",
+ /* Serial port */
+ "TXD0",
+ "RXD0",
+ "GPIO16",
+ "GPIO17",
+ "GPIO18",
+ "GPIO19",
+ "GPIO20",
+ "GPIO21",
+ "GPIO22",
+ "GPIO23",
+ "GPIO24",
+ "GPIO25",
+ "GPIO26",
+ "GPIO27",
+ "SDA0",
+ "SCL0",
+ "NC", /* GPIO30 */
+ "NC", /* GPIO31 */
+ "NC", /* GPIO32 */
+ "NC", /* GPIO33 */
+ "NC", /* GPIO34 */
+ "NC", /* GPIO35 */
+ "NC", /* GPIO36 */
+ "NC", /* GPIO37 */
+ "NC", /* GPIO38 */
+ "NC", /* GPIO39 */
+ "CAM_GPIO1", /* GPIO40 */
+ "WL_ON", /* GPIO41 */
+ "NC", /* GPIO42 */
+ "WIFI_CLK", /* GPIO43 */
+ "CAM_GPIO0", /* GPIO44 */
+ "BT_ON", /* GPIO45 */
+ "HDMI_HPD_N",
+ "STATUS_LED_N",
+ /* Used by SD Card */
+ "SD_CLK_R",
+ "SD_CMD_R",
+ "SD_DATA0_R",
+ "SD_DATA1_R",
+ "SD_DATA2_R",
+ "SD_DATA3_R";
+
+ pinctrl-0 = <&gpioout &alt0>;
+
+ wl_on: wl-on {
+ brcm,pins = <41>;
+ brcm,function = <BCM2835_FSEL_GPIO_OUT>;
+ };
+};
+
+&hdmi {
+ hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
+};
+
+&sdhci {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>;
+ mmc-pwrseq = <&wifi_pwrseq>;
+ non-removable;
+ status = "okay";
+
+ brcmf: wifi@1 {
+ reg = <1>;
+ compatible = "brcm,bcm4329-fmac";
+ };
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio14>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero.dts b/arch/arm/boot/dts/bcm2835-rpi-zero.dts
index cc8b832c4c78..70362405c595 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-zero.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-zero.dts
@@ -12,7 +12,7 @@
/dts-v1/;
#include "bcm2835.dtsi"
#include "bcm2835-rpi.dtsi"
-#include "bcm283x-rpi-usb-host.dtsi"
+#include "bcm283x-rpi-usb-otg.dtsi"
/ {
compatible = "raspberrypi,model-zero", "brcm,bcm2835";
@@ -103,3 +103,9 @@
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio14>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
index a7b5ce133784..e36c392a2b8f 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -39,7 +39,7 @@
};
alt0: alt0 {
- brcm,pins = <4 5 7 8 9 10 11 14 15>;
+ brcm,pins = <4 5 7 8 9 10 11>;
brcm,function = <BCM2835_FSEL_ALT0>;
};
};
@@ -65,13 +65,13 @@
&sdhci {
pinctrl-names = "default";
pinctrl-0 = <&emmc_gpio48>;
- status = "okay";
bus-width = <4>;
};
&sdhost {
pinctrl-names = "default";
pinctrl-0 = <&sdhost_gpio48>;
+ status = "okay";
bus-width = <4>;
};
diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi
index 0890d97e674d..659b6e9513b1 100644
--- a/arch/arm/boot/dts/bcm2835.dtsi
+++ b/arch/arm/boot/dts/bcm2835.dtsi
@@ -24,6 +24,10 @@
};
};
+&cpu_thermal {
+ coefficients = <(-538) 407000>;
+};
+
/* enable thermal sensor with the correct compatible property set */
&thermal {
compatible = "brcm,bcm2835-thermal";
diff --git a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
index bf19e8cfb9e6..e8de41444b68 100644
--- a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
+++ b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
@@ -39,3 +39,9 @@
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio14>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm2836.dtsi b/arch/arm/boot/dts/bcm2836.dtsi
index 519a44f5d25a..2c26d0be8b03 100644
--- a/arch/arm/boot/dts/bcm2836.dtsi
+++ b/arch/arm/boot/dts/bcm2836.dtsi
@@ -36,6 +36,7 @@
cpus: cpus {
#address-cells = <1>;
#size-cells = <0>;
+ enable-method = "brcm,bcm2836-smp";
v7_cpu0: cpu@0 {
device_type = "cpu";
@@ -77,6 +78,10 @@
interrupts = <8>;
};
+&cpu_thermal {
+ coefficients = <(-538) 407000>;
+};
+
/* enable thermal sensor with the correct compatible property set */
&thermal {
compatible = "brcm,bcm2836-thermal";
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
new file mode 100644
index 000000000000..c71a0d73d2a2
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
@@ -0,0 +1,56 @@
+/dts-v1/;
+#include "bcm2837.dtsi"
+#include "bcm2835-rpi.dtsi"
+#include "bcm283x-rpi-smsc9514.dtsi"
+#include "bcm283x-rpi-usb-host.dtsi"
+
+/ {
+ compatible = "raspberrypi,3-model-b", "brcm,bcm2837";
+ model = "Raspberry Pi 3 Model B";
+
+ chosen {
+ /* 8250 auxiliary UART instead of pl011 */
+ stdout-path = "serial1:115200n8";
+ };
+
+ memory {
+ reg = <0 0x40000000>;
+ };
+
+ leds {
+ act {
+ gpios = <&gpio 47 0>;
+ };
+ };
+};
+
+/* uart0 communicates with the BT module */
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio32 &gpclk2_gpio43>;
+ status = "okay";
+};
+
+/* uart1 is mapped to the pin header */
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_gpio14>;
+ status = "okay";
+};
+
+/* SDHCI is used to control the SDIO for wireless */
+&sdhci {
+ pinctrl-names = "default";
+ pinctrl-0 = <&emmc_gpio34>;
+ status = "okay";
+ bus-width = <4>;
+ non-removable;
+};
+
+/* SDHOST is used to drive the SD card */
+&sdhost {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdhost_gpio48>;
+ status = "okay";
+ bus-width = <4>;
+};
diff --git a/arch/arm64/boot/dts/broadcom/bcm2837.dtsi b/arch/arm/boot/dts/bcm2837.dtsi
index 19f2fe620a21..bc1cca5cf43c 100644
--- a/arch/arm64/boot/dts/broadcom/bcm2837.dtsi
+++ b/arch/arm/boot/dts/bcm2837.dtsi
@@ -30,6 +30,7 @@
cpus: cpus {
#address-cells = <1>;
#size-cells = <0>;
+ enable-method = "brcm,bcm2836-smp"; // for ARM 32-bit
cpu0: cpu@0 {
device_type = "cpu";
@@ -75,6 +76,10 @@
interrupts = <8>;
};
+&cpu_thermal {
+ coefficients = <(-538) 412000>;
+};
+
/* enable thermal sensor with the correct compatible property set */
&thermal {
compatible = "brcm,bcm2837-thermal";
diff --git a/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi b/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi
new file mode 100644
index 000000000000..e7d217c967a1
--- /dev/null
+++ b/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi
@@ -0,0 +1,10 @@
+&usb {
+ dr_mode = "otg";
+ g-rx-fifo-size = <256>;
+ g-np-tx-fifo-size = <32>;
+ /*
+ * According to dwc2 the sum of all device EP
+ * fifo sizes shouldn't exceed 3776 bytes.
+ */
+ g-tx-fifo-size = <256 256 512 512 512 768 768>;
+};
diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi
index 9444a9a9ba10..013431e3d7c3 100644
--- a/arch/arm/boot/dts/bcm283x.dtsi
+++ b/arch/arm/boot/dts/bcm283x.dtsi
@@ -20,8 +20,33 @@
#address-cells = <1>;
#size-cells = <1>;
+ aliases {
+ serial0 = &uart0;
+ serial1 = &uart1;
+ };
+
chosen {
- bootargs = "earlyprintk console=ttyAMA0";
+ stdout-path = "serial0:115200n8";
+ };
+
+ thermal-zones {
+ cpu_thermal: cpu-thermal {
+ polling-delay-passive = <0>;
+ polling-delay = <1000>;
+
+ thermal-sensors = <&thermal>;
+
+ trips {
+ cpu-crit {
+ temperature = <80000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ };
+ };
};
soc {
@@ -435,6 +460,7 @@
compatible = "brcm,bcm2835-thermal";
reg = <0x7e212000 0x8>;
clocks = <&clocks BCM2835_CLOCK_TSENS>;
+ #thermal-sensor-cells = <0>;
status = "disabled";
};
@@ -573,6 +599,8 @@
#size-cells = <0>;
clocks = <&clk_usb>;
clock-names = "otg";
+ phys = <&usbphy>;
+ phy-names = "usb2-phy";
};
v3d: v3d@7ec00000 {
@@ -608,4 +636,8 @@
clock-frequency = <480000000>;
};
};
+
+ usbphy: phy {
+ compatible = "usb-nop-xceiv";
+ };
};
diff --git a/arch/arm/boot/dts/bcm4708-buffalo-wzr-1750dhp.dts b/arch/arm/boot/dts/bcm4708-buffalo-wzr-1750dhp.dts
index 62e1427b3f10..8b64caabaad8 100644
--- a/arch/arm/boot/dts/bcm4708-buffalo-wzr-1750dhp.dts
+++ b/arch/arm/boot/dts/bcm4708-buffalo-wzr-1750dhp.dts
@@ -52,6 +52,10 @@
usb {
label = "bcm53xx:blue:usb";
gpios = <&hc595 0 GPIO_ACTIVE_HIGH>;
+ trigger-sources = <&ohci_port1>, <&ehci_port1>,
+ <&xhci_port1>, <&ohci_port2>,
+ <&ehci_port2>;
+ linux,default-trigger = "usbport";
};
power0 {
diff --git a/arch/arm/boot/dts/bcm4708-netgear-r6250.dts b/arch/arm/boot/dts/bcm4708-netgear-r6250.dts
index a5647efe4118..d7c34fa72b4b 100644
--- a/arch/arm/boot/dts/bcm4708-netgear-r6250.dts
+++ b/arch/arm/boot/dts/bcm4708-netgear-r6250.dts
@@ -48,6 +48,9 @@
usb {
label = "bcm53xx:blue:usb";
gpios = <&chipcommon 8 GPIO_ACTIVE_LOW>;
+ trigger-sources = <&ohci_port1>, <&ehci_port1>,
+ <&xhci_port1>;
+ linux,default-trigger = "usbport";
};
wireless {
diff --git a/arch/arm/boot/dts/bcm4708-smartrg-sr400ac.dts b/arch/arm/boot/dts/bcm4708-smartrg-sr400ac.dts
index 19ee924d7d53..83a4c60bb431 100644
--- a/arch/arm/boot/dts/bcm4708-smartrg-sr400ac.dts
+++ b/arch/arm/boot/dts/bcm4708-smartrg-sr400ac.dts
@@ -42,16 +42,22 @@
usb2 {
label = "bcm53xx:white:usb2";
gpios = <&chipcommon 3 GPIO_ACTIVE_HIGH>;
+ trigger-sources = <&ohci_port2>, <&ehci_port2>;
+ linux,default-trigger = "usbport";
};
usb3-white {
label = "bcm53xx:white:usb3";
gpios = <&chipcommon 4 GPIO_ACTIVE_HIGH>;
+ trigger-sources = <&xhci_port1>;
+ linux,default-trigger = "usbport";
};
usb3-green {
label = "bcm53xx:green:usb3";
gpios = <&chipcommon 5 GPIO_ACTIVE_HIGH>;
+ trigger-sources = <&ohci_port1>, <&ehci_port1>;
+ linux,default-trigger = "usbport";
};
wps {
diff --git a/arch/arm/boot/dts/bcm47081-tplink-archer-c5-v2.dts b/arch/arm/boot/dts/bcm47081-tplink-archer-c5-v2.dts
index a854a5174b7f..3ed8de42cb48 100644
--- a/arch/arm/boot/dts/bcm47081-tplink-archer-c5-v2.dts
+++ b/arch/arm/boot/dts/bcm47081-tplink-archer-c5-v2.dts
@@ -36,6 +36,8 @@
usb2-port1 {
label = "bcm53xx:green:usb2-port1";
gpios = <&chipcommon 2 GPIO_ACTIVE_HIGH>;
+ trigger-sources = <&ohci_port1>, <&ehci_port1>;
+ linux,default-trigger = "usbport";
};
power {
@@ -67,6 +69,8 @@
usb2-port2 {
label = "bcm53xx:green:usb2-port2";
gpios = <&chipcommon 13 GPIO_ACTIVE_HIGH>;
+ trigger-sources = <&ohci_port2>, <&ehci_port2>;
+ linux,default-trigger = "usbport";
};
};
diff --git a/arch/arm/boot/dts/bcm4709-tplink-archer-c9-v1.dts b/arch/arm/boot/dts/bcm4709-tplink-archer-c9-v1.dts
index 97aa5d59a1d8..ec4a50e440f6 100644
--- a/arch/arm/boot/dts/bcm4709-tplink-archer-c9-v1.dts
+++ b/arch/arm/boot/dts/bcm4709-tplink-archer-c9-v1.dts
@@ -46,11 +46,16 @@
usb3 {
label = "bcm53xx:blue:usb3";
gpios = <&chipcommon 6 GPIO_ACTIVE_HIGH>;
+ trigger-sources = <&ohci_port1>, <&ehci_port1>,
+ <&xhci_port1>;
+ linux,default-trigger = "usbport";
};
usb2 {
label = "bcm53xx:blue:usb2";
gpios = <&chipcommon 7 GPIO_ACTIVE_HIGH>;
+ trigger-sources = <&ohci_port2>, <&ehci_port2>;
+ linux,default-trigger = "usbport";
};
wan-blue {
diff --git a/arch/arm/boot/dts/bcm47094-dlink-dir-885l.dts b/arch/arm/boot/dts/bcm47094-dlink-dir-885l.dts
index 51b0641b5f79..7cc7d344fe5b 100644
--- a/arch/arm/boot/dts/bcm47094-dlink-dir-885l.dts
+++ b/arch/arm/boot/dts/bcm47094-dlink-dir-885l.dts
@@ -71,6 +71,9 @@
usb3-white {
label = "bcm53xx:white:usb3";
gpios = <&chipcommon 8 GPIO_ACTIVE_LOW>;
+ trigger-sources = <&ohci_port1>, <&ehci_port1>,
+ <&xhci_port1>;
+ linux,default-trigger = "usbport";
};
2ghz {
diff --git a/arch/arm/boot/dts/bcm47094-luxul-xwr-3100.dts b/arch/arm/boot/dts/bcm47094-luxul-xwr-3100.dts
index 5f8621d00c50..bc1d1e10d4ac 100644
--- a/arch/arm/boot/dts/bcm47094-luxul-xwr-3100.dts
+++ b/arch/arm/boot/dts/bcm47094-luxul-xwr-3100.dts
@@ -59,6 +59,9 @@
usb3 {
label = "bcm53xx:green:usb3";
gpios = <&chipcommon 8 GPIO_ACTIVE_LOW>;
+ trigger-sources = <&ohci_port1>, <&ehci_port1>,
+ <&xhci_port1>;
+ linux,default-trigger = "usbport";
};
status {
diff --git a/arch/arm/boot/dts/bcm47189-tenda-ac9.dts b/arch/arm/boot/dts/bcm47189-tenda-ac9.dts
index 34417dac1cd0..19e61b5b066c 100644
--- a/arch/arm/boot/dts/bcm47189-tenda-ac9.dts
+++ b/arch/arm/boot/dts/bcm47189-tenda-ac9.dts
@@ -26,6 +26,8 @@
usb {
label = "bcm53xx:blue:usb";
gpios = <&chipcommon 1 GPIO_ACTIVE_HIGH>;
+ trigger-sources = <&ohci_port1>, <&ehci_port1>;
+ linux,default-trigger = "usbport";
};
wps {
diff --git a/arch/arm/boot/dts/bcm5301x.dtsi b/arch/arm/boot/dts/bcm5301x.dtsi
index acee36a61004..045b9bb857f9 100644
--- a/arch/arm/boot/dts/bcm5301x.dtsi
+++ b/arch/arm/boot/dts/bcm5301x.dtsi
@@ -272,6 +272,19 @@
reg = <0x00021000 0x1000>;
interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
phys = <&usb2_phy>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ehci_port1: port@1 {
+ reg = <1>;
+ #trigger-source-cells = <0>;
+ };
+
+ ehci_port2: port@2 {
+ reg = <2>;
+ #trigger-source-cells = <0>;
+ };
};
ohci: ohci@22000 {
@@ -280,6 +293,19 @@
compatible = "generic-ohci";
reg = <0x00022000 0x1000>;
interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ohci_port1: port@1 {
+ reg = <1>;
+ #trigger-source-cells = <0>;
+ };
+
+ ohci_port2: port@2 {
+ reg = <2>;
+ #trigger-source-cells = <0>;
+ };
};
};
@@ -300,6 +326,14 @@
interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
phys = <&usb3_phy>;
phy-names = "usb";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ xhci_port1: port@1 {
+ reg = <1>;
+ #trigger-source-cells = <0>;
+ };
};
};
@@ -320,6 +354,14 @@
};
};
+ mdio: mdio@18003000 {
+ compatible = "brcm,iproc-mdio";
+ reg = <0x18003000 0x8>;
+ #size-cells = <1>;
+ #address-cells = <0>;
+ status = "disabled";
+ };
+
i2c0: i2c@18009000 {
compatible = "brcm,iproc-i2c";
reg = <0x18009000 0x50>;
@@ -349,6 +391,12 @@
"sata2";
};
+ thermal: thermal@1800c2c0 {
+ compatible = "brcm,ns-thermal";
+ reg = <0x1800c2c0 0x10>;
+ #thermal-sensor-cells = <0>;
+ };
+
srab: srab@18007000 {
compatible = "brcm,bcm5301x-srab";
reg = <0x18007000 0x1000>;
@@ -412,4 +460,24 @@
status = "disabled";
};
};
+
+ thermal-zones {
+ cpu_thermal: cpu-thermal {
+ polling-delay-passive = <0>;
+ polling-delay = <1000>;
+ coefficients = <(-556) 418000>;
+ thermal-sensors = <&thermal>;
+
+ trips {
+ cpu-crit {
+ temperature = <125000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ };
+ };
+ };
};
diff --git a/arch/arm/boot/dts/bcm53573.dtsi b/arch/arm/boot/dts/bcm53573.dtsi
index eae623f76401..c698a565b8ae 100644
--- a/arch/arm/boot/dts/bcm53573.dtsi
+++ b/arch/arm/boot/dts/bcm53573.dtsi
@@ -138,10 +138,12 @@
ehci_port1: port@1 {
reg = <1>;
+ #trigger-source-cells = <0>;
};
ehci_port2: port@2 {
reg = <2>;
+ #trigger-source-cells = <0>;
};
};
@@ -158,10 +160,12 @@
ohci_port1: port@1 {
reg = <1>;
+ #trigger-source-cells = <0>;
};
ohci_port2: port@2 {
reg = <2>;
+ #trigger-source-cells = <0>;
};
};
};
diff --git a/arch/arm/boot/dts/bcm911360_entphn.dts b/arch/arm/boot/dts/bcm911360_entphn.dts
index 8b3800f46288..53f990defd6a 100644
--- a/arch/arm/boot/dts/bcm911360_entphn.dts
+++ b/arch/arm/boot/dts/bcm911360_entphn.dts
@@ -39,9 +39,12 @@
model = "Cygnus Enterprise Phone (BCM911360_ENTPHN)";
compatible = "brcm,bcm11360", "brcm,cygnus";
+ aliases {
+ serial0 = &uart3;
+ };
+
chosen {
- stdout-path = &uart3;
- bootargs = "console=ttyS0,115200";
+ stdout-path = "serial0:115200n8";
};
gpio_keys {
@@ -57,6 +60,26 @@
};
};
+&eth0 {
+ status = "okay";
+};
+
+&mdio {
+ status = "okay";
+};
+
+&switch {
+ status = "okay";
+};
+
+&v3d {
+ assigned-clocks =
+ <&mipipll BCM_CYGNUS_MIPIPLL>,
+ <&mipipll BCM_CYGNUS_MIPIPLL_CH2_V3D>;
+ assigned-clock-rates = <525000000>, <300000000>;
+ status = "okay";
+};
+
&uart3 {
status = "okay";
};
diff --git a/arch/arm/boot/dts/bcm947189acdbmr.dts b/arch/arm/boot/dts/bcm947189acdbmr.dts
new file mode 100644
index 000000000000..ef263412fea5
--- /dev/null
+++ b/arch/arm/boot/dts/bcm947189acdbmr.dts
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2017 Broadcom
+ * Author: Florian Fainelli <f.fainelli@gmail.com>
+ *
+ * Licensed under the ISC license.
+ */
+
+/dts-v1/;
+
+#include "bcm53573.dtsi"
+
+/ {
+ compatible = "brcm,bcm947189acdbmr", "brcm,bcm47189", "brcm,bcm53573";
+ model = "Broadcom BCM947189ACDBMR";
+
+ chosen {
+ bootargs = "console=ttyS0,115200 earlycon";
+ };
+
+ memory {
+ reg = <0x00000000 0x08000000>;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ wps {
+ label = "bcm53xx:blue:wps";
+ gpios = <&chipcommon 10 GPIO_ACTIVE_HIGH>;
+ };
+
+ 5ghz {
+ label = "bcm53xx:blue:5ghz";
+ gpios = <&chipcommon 11 GPIO_ACTIVE_HIGH>;
+ };
+
+ 2ghz {
+ label = "bcm53xx:blue:2ghz";
+ gpios = <&chipcommon 12 GPIO_ACTIVE_HIGH>;
+ };
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ restart {
+ label = "Reset";
+ linux,code = <KEY_RESTART>;
+ gpios = <&chipcommon 7 GPIO_ACTIVE_HIGH>;
+ };
+
+ wps {
+ label = "WPS";
+ linux,code = <KEY_WPS_BUTTON>;
+ gpios = <&chipcommon 9 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ spi {
+ compatible = "spi-gpio";
+ num-chipselects = <1>;
+ gpio-sck = <&chipcommon 21 0>;
+ gpio-miso = <&chipcommon 22 0>;
+ gpio-mosi = <&chipcommon 23 0>;
+ cs-gpios = <&chipcommon 24 0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* External BCM6802 MoCA chip is connected */
+ };
+};
+
+&pcie0 {
+ ranges = <0x00000000 0 0 0 0 0x00100000>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+
+ bridge@0,0,0 {
+ reg = <0x0000 0 0 0 0>;
+ ranges = <0x00000000 0 0 0 0 0 0 0x00100000>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+
+ wifi@0,1,0 {
+ reg = <0x0000 0 0 0 0>;
+ ranges = <0x00000000 0 0 0 0x00100000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ };
+ };
+};
+
+&usb2 {
+ vcc-gpio = <&chipcommon 8 GPIO_ACTIVE_HIGH>;
+};
diff --git a/arch/arm/boot/dts/bcm958522er.dts b/arch/arm/boot/dts/bcm958522er.dts
index f5c42962c201..f9dd342cc2ae 100644
--- a/arch/arm/boot/dts/bcm958522er.dts
+++ b/arch/arm/boot/dts/bcm958522er.dts
@@ -170,3 +170,11 @@
&uart0 {
status = "okay";
};
+
+&usb3_phy {
+ status = "okay";
+};
+
+&xhci {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm958525er.dts b/arch/arm/boot/dts/bcm958525er.dts
index efcb1f67bdad..374508a9cfbf 100644
--- a/arch/arm/boot/dts/bcm958525er.dts
+++ b/arch/arm/boot/dts/bcm958525er.dts
@@ -182,3 +182,11 @@
&uart0 {
status = "okay";
};
+
+&usb3_phy {
+ status = "okay";
+};
+
+&xhci {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm958525xmc.dts b/arch/arm/boot/dts/bcm958525xmc.dts
index b335ce02e32f..403250c5ad8e 100644
--- a/arch/arm/boot/dts/bcm958525xmc.dts
+++ b/arch/arm/boot/dts/bcm958525xmc.dts
@@ -202,3 +202,11 @@
&uart0 {
status = "okay";
};
+
+&usb3_phy {
+ status = "okay";
+};
+
+&xhci {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm958622hr.dts b/arch/arm/boot/dts/bcm958622hr.dts
index 16ab2d82a14b..fd8b8c689ffe 100644
--- a/arch/arm/boot/dts/bcm958622hr.dts
+++ b/arch/arm/boot/dts/bcm958622hr.dts
@@ -219,3 +219,11 @@
&uart0 {
status = "okay";
};
+
+&usb3_phy {
+ status = "okay";
+};
+
+&xhci {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm958623hr.dts b/arch/arm/boot/dts/bcm958623hr.dts
index 9b921c6aa8f8..3bc50849d013 100644
--- a/arch/arm/boot/dts/bcm958623hr.dts
+++ b/arch/arm/boot/dts/bcm958623hr.dts
@@ -227,3 +227,11 @@
&uart0 {
status = "okay";
};
+
+&usb3_phy {
+ status = "okay";
+};
+
+&xhci {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm958625hr.dts b/arch/arm/boot/dts/bcm958625hr.dts
index 006b08e41a3b..d94d14b3c745 100644
--- a/arch/arm/boot/dts/bcm958625hr.dts
+++ b/arch/arm/boot/dts/bcm958625hr.dts
@@ -229,3 +229,11 @@
&uart0 {
status = "okay";
};
+
+&usb3_phy {
+ status = "okay";
+};
+
+&xhci {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/bcm958625k.dts b/arch/arm/boot/dts/bcm958625k.dts
index 64740f85cf4c..2cf2392483b2 100644
--- a/arch/arm/boot/dts/bcm958625k.dts
+++ b/arch/arm/boot/dts/bcm958625k.dts
@@ -264,3 +264,11 @@
&uart1 {
status = "okay";
};
+
+&usb3_phy {
+ status = "okay";
+};
+
+&xhci {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts
index 8d244cd76c36..c75507922f7d 100644
--- a/arch/arm/boot/dts/da850-evm.dts
+++ b/arch/arm/boot/dts/da850-evm.dts
@@ -15,6 +15,13 @@
compatible = "ti,da850-evm", "ti,da850";
model = "DA850/AM1808/OMAP-L138 EVM";
+ aliases {
+ serial0 = &serial0;
+ serial1 = &serial1;
+ serial2 = &serial2;
+ ethernet0 = &eth0;
+ };
+
soc@1c00000 {
pmx_core: pinmux@14120 {
status = "okay";
@@ -82,6 +89,8 @@
tca6416: gpio@20 {
compatible = "ti,tca6416";
reg = <0x20>;
+ gpio-controller;
+ #gpio-cells = <2>;
};
};
wdt: wdt@21000 {
@@ -299,25 +308,4 @@
pinctrl-names = "default";
pinctrl-0 = <&vpif_capture_pins>, <&vpif_display_pins>;
status = "okay";
-
- /* VPIF capture port */
- port@0 {
- vpif_input_ch0: endpoint@0 {
- reg = <0>;
- bus-width = <8>;
- };
-
- vpif_input_ch1: endpoint@1 {
- reg = <1>;
- bus-width = <8>;
- data-shift = <8>;
- };
- };
-
- /* VPIF display port */
- port@1 {
- vpif_output_ch0: endpoint {
- bus-width = <8>;
- };
- };
};
diff --git a/arch/arm/boot/dts/da850-lcdk.dts b/arch/arm/boot/dts/da850-lcdk.dts
index b837fec70eec..a0f0916156e6 100644
--- a/arch/arm/boot/dts/da850-lcdk.dts
+++ b/arch/arm/boot/dts/da850-lcdk.dts
@@ -318,11 +318,4 @@
pinctrl-names = "default";
pinctrl-0 = <&vpif_capture_pins>;
status = "okay";
-
- /* VPIF capture port */
- port {
- vpif_ch0: endpoint {
- bus-width = <8>;
- };
- };
};
diff --git a/arch/arm/boot/dts/da850-lego-ev3.dts b/arch/arm/boot/dts/da850-lego-ev3.dts
index 512604ad8b71..413dbd5d9f64 100644
--- a/arch/arm/boot/dts/da850-lego-ev3.dts
+++ b/arch/arm/boot/dts/da850-lego-ev3.dts
@@ -172,6 +172,18 @@
gpio = <&gpio 111 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
+
+ /*
+ * The EV3 can use 6-AA batteries or a rechargeable Li-ion battery pack.
+ */
+ battery {
+ pinctrl-names = "default";
+ pintctrl-0 = <&battery_pins>;
+ compatible = "lego,ev3-battery";
+ io-channels = <&adc 4>, <&adc 3>;
+ io-channel-names = "voltage", "current";
+ rechargeable-gpios = <&gpio 136 GPIO_ACTIVE_LOW>;
+ };
};
&pmx_core {
@@ -228,6 +240,24 @@
0x34 0x00000008 0x0000000f
>;
};
+
+ battery_pins: pinmux_battery_pins {
+ pinctrl-single,bits = <
+ /* GP0[6] */
+ 0x04 0x00000080 0x000000f0
+ /* GP8[8] */
+ 0x4c 0x00000080 0x000000f0
+ >;
+ };
+
+ ev3_lcd_pins: pinmux_lcd {
+ pinctrl-single,bits = <
+ /* SIMO, GP2[11], GP2[12], CLK */
+ 0x14 0x00188100 0x00ffff00
+ /* GP5[0] */
+ 0x30 0x80000000 0xf0000000
+ >;
+ };
};
&pinconf {
@@ -336,12 +366,34 @@
};
};
+&spi1 {
+ status = "okay";
+ pinctrl-0 = <&ev3_lcd_pins>;
+ pinctrl-names = "default";
+ cs-gpios = <&gpio 44 GPIO_ACTIVE_LOW>;
+
+ display@0{
+ compatible = "lego,ev3-lcd";
+ reg = <0>;
+ spi-max-frequency = <10000000>;
+ a0-gpios = <&gpio 43 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio 80 GPIO_ACTIVE_HIGH>;
+ };
+};
+
&ehrpwm0 {
status = "okay";
};
&gpio {
status = "okay";
+
+ /* Don't pull down battery voltage adc io channel */
+ batt_volt_en {
+ gpio-hog;
+ gpios = <6 GPIO_ACTIVE_HIGH>;
+ output-low;
+ };
};
&usb_phy {
diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
index 941d455000a7..af68ef7b0caa 100644
--- a/arch/arm/boot/dts/da850.dtsi
+++ b/arch/arm/boot/dts/da850.dtsi
@@ -446,13 +446,38 @@
};
usb0: usb@200000 {
compatible = "ti,da830-musb";
- reg = <0x200000 0x10000>;
+ reg = <0x200000 0x1000>;
+ ranges;
interrupts = <58>;
interrupt-names = "mc";
dr_mode = "otg";
phys = <&usb_phy 0>;
phy-names = "usb-phy";
status = "disabled";
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ dmas = <&cppi41dma 0 0 &cppi41dma 1 0
+ &cppi41dma 2 0 &cppi41dma 3 0
+ &cppi41dma 0 1 &cppi41dma 1 1
+ &cppi41dma 2 1 &cppi41dma 3 1>;
+ dma-names =
+ "rx1", "rx2", "rx3", "rx4",
+ "tx1", "tx2", "tx3", "tx4";
+
+ cppi41dma: dma-controller@201000 {
+ compatible = "ti,da830-cppi41";
+ reg = <0x201000 0x1000
+ 0x202000 0x1000
+ 0x204000 0x4000>;
+ reg-names = "controller",
+ "scheduler", "queuemgr";
+ interrupts = <58>;
+ #dma-cells = <2>;
+ #dma-channels = <4>;
+ status = "okay";
+ };
};
sata: sata@218000 {
compatible = "ti,da850-ahci";
@@ -503,6 +528,8 @@
ti,ngpio = <144>;
ti,davinci-gpio-unbanked = <0>;
status = "disabled";
+ interrupt-controller;
+ #interrupt-cells = <2>;
};
pinconf: pin-controller@22c00c {
compatible = "ti,da850-pupd";
diff --git a/arch/arm/boot/dts/dm8168-evm.dts b/arch/arm/boot/dts/dm8168-evm.dts
index 1865976db5f9..c72a2132aa82 100644
--- a/arch/arm/boot/dts/dm8168-evm.dts
+++ b/arch/arm/boot/dts/dm8168-evm.dts
@@ -68,6 +68,34 @@
DM816X_IOPAD(0x0d08, MUX_MODE0) /* USB1_DRVVBUS */
>;
};
+
+ nandflash_pins: nandflash_pins {
+ pinctrl-single,pins = <
+ DM816X_IOPAD(0x0b38, PULL_UP | MUX_MODE0) /* PINCTRL207 GPMC_CS0*/
+ DM816X_IOPAD(0x0b60, PULL_ENA | MUX_MODE0) /* PINCTRL217 GPMC_ADV_ALE */
+ DM816X_IOPAD(0x0b54, PULL_UP | PULL_ENA | MUX_MODE0) /* PINCTRL214 GPMC_OE_RE */
+ DM816X_IOPAD(0x0b58, PULL_ENA | MUX_MODE0) /* PINCTRL215 GPMC_BE0_CLE */
+ DM816X_IOPAD(0x0b50, PULL_UP | MUX_MODE0) /* PINCTRL213 GPMC_WE */
+ DM816X_IOPAD(0x0b6c, MUX_MODE0) /* PINCTRL220 GPMC_WAIT */
+ DM816X_IOPAD(0x0be4, PULL_ENA | MUX_MODE0) /* PINCTRL250 GPMC_CLK */
+ DM816X_IOPAD(0x0ba4, MUX_MODE0) /* PINCTRL234 GPMC_D0 */
+ DM816X_IOPAD(0x0ba8, MUX_MODE0) /* PINCTRL234 GPMC_D1 */
+ DM816X_IOPAD(0x0bac, MUX_MODE0) /* PINCTRL234 GPMC_D2 */
+ DM816X_IOPAD(0x0bb0, MUX_MODE0) /* PINCTRL234 GPMC_D3 */
+ DM816X_IOPAD(0x0bb4, MUX_MODE0) /* PINCTRL234 GPMC_D4 */
+ DM816X_IOPAD(0x0bb8, MUX_MODE0) /* PINCTRL234 GPMC_D5 */
+ DM816X_IOPAD(0x0bbc, MUX_MODE0) /* PINCTRL234 GPMC_D6 */
+ DM816X_IOPAD(0x0bc0, MUX_MODE0) /* PINCTRL234 GPMC_D7 */
+ DM816X_IOPAD(0x0bc4, MUX_MODE0) /* PINCTRL234 GPMC_D8 */
+ DM816X_IOPAD(0x0bc8, MUX_MODE0) /* PINCTRL234 GPMC_D9 */
+ DM816X_IOPAD(0x0bcc, MUX_MODE0) /* PINCTRL234 GPMC_D10 */
+ DM816X_IOPAD(0x0bd0, MUX_MODE0) /* PINCTRL234 GPMC_D11 */
+ DM816X_IOPAD(0x0bd4, MUX_MODE0) /* PINCTRL234 GPMC_D12 */
+ DM816X_IOPAD(0x0bd8, MUX_MODE0) /* PINCTRL234 GPMC_D13 */
+ DM816X_IOPAD(0x0bdc, MUX_MODE0) /* PINCTRL234 GPMC_D14 */
+ DM816X_IOPAD(0x0be0, MUX_MODE0) /* PINCTRL234 GPMC_D15 */
+ >;
+ };
};
&i2c1 {
@@ -90,6 +118,8 @@
&gpmc {
ranges = <0 0 0x04000000 0x01000000>; /* CS0: 16MB for NAND */
+ pinctrl-names = "default";
+ pinctrl-0 = <&nandflash_pins>;
nand@0,0 {
compatible = "ti,omap2-nand";
@@ -98,9 +128,11 @@
interrupt-parent = <&gpmc>;
interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
<1 IRQ_TYPE_NONE>; /* termcount */
+ rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */
#address-cells = <1>;
#size-cells = <1>;
ti,nand-ecc-opt = "bch8";
+ ti,elm-id = <&elm>;
nand-bus-width = <16>;
gpmc,device-width = <2>;
gpmc,sync-clk-ps = <0>;
@@ -164,7 +196,7 @@
vmmc-supply = <&vmmcsd_fixed>;
bus-width = <4>;
cd-gpios = <&gpio2 7 GPIO_ACTIVE_LOW>;
- wp-gpios = <&gpio2 8 GPIO_ACTIVE_LOW>;
+ wp-gpios = <&gpio2 8 GPIO_ACTIVE_HIGH>;
};
/* At least dm8168-evm rev c won't support multipoint, later may */
diff --git a/arch/arm/boot/dts/dm816x.dtsi b/arch/arm/boot/dts/dm816x.dtsi
index 59cbf958fcc3..566b2a8c8b96 100644
--- a/arch/arm/boot/dts/dm816x.dtsi
+++ b/arch/arm/boot/dts/dm816x.dtsi
@@ -145,7 +145,7 @@
};
elm: elm@48080000 {
- compatible = "ti,816-elm";
+ compatible = "ti,am3352-elm";
ti,hwmods = "elm";
reg = <0x48080000 0x2000>;
interrupts = <4>;
diff --git a/arch/arm/boot/dts/dove-d3plug.dts b/arch/arm/boot/dts/dove-d3plug.dts
index f5f59bb5a534..e88ff83f1dec 100644
--- a/arch/arm/boot/dts/dove-d3plug.dts
+++ b/arch/arm/boot/dts/dove-d3plug.dts
@@ -88,7 +88,7 @@
&pcie {
status = "okay";
/* Fresco Logic USB3.0 xHCI controller */
- pcie-port@0 {
+ pcie@1 {
status = "okay";
reset-gpios = <&gpio0 26 1>;
reset-delay-us = <20000>;
@@ -96,7 +96,7 @@
pinctrl-names = "default";
};
/* Mini-PCIe slot */
- pcie-port@1 {
+ pcie@2 {
status = "okay";
reset-gpios = <&gpio0 25 1>;
};
diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
index 698d58cea20d..1475d3672e56 100644
--- a/arch/arm/boot/dts/dove.dtsi
+++ b/arch/arm/boot/dts/dove.dtsi
@@ -89,7 +89,7 @@
MBUS_ID(0x03, 0x01) 0 0xc8000000 0x0100000 /* CESA SRAM 1M */
MBUS_ID(0x0d, 0x00) 0 0xf0000000 0x0100000>; /* PMU SRAM 1M */
- pcie: pcie-controller {
+ pcie: pcie {
compatible = "marvell,dove-pcie";
status = "disabled";
device_type = "pci";
@@ -106,7 +106,7 @@
0x82000000 0x2 0x0 MBUS_ID(0x08, 0xe8) 0 1 0 /* Port 1.0 Mem */
0x81000000 0x2 0x0 MBUS_ID(0x08, 0xe0) 0 1 0>; /* Port 1.0 I/O */
- pcie0: pcie-port@0 {
+ pcie0: pcie@1 {
device_type = "pci";
status = "disabled";
assigned-addresses = <0x82000800 0 0x40000 0 0x2000>;
@@ -118,13 +118,14 @@
#size-cells = <2>;
ranges = <0x82000000 0 0 0x82000000 0x1 0 1 0
0x81000000 0 0 0x81000000 0x1 0 1 0>;
+ bus-range = <0x00 0xff>;
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &intc 16>;
};
- pcie1: pcie-port@1 {
+ pcie1: pcie@2 {
device_type = "pci";
status = "disabled";
assigned-addresses = <0x82002800 0 0x80000 0 0x2000>;
@@ -136,6 +137,7 @@
#size-cells = <2>;
ranges = <0x82000000 0 0 0x82000000 0x2 0 1 0
0x81000000 0 0 0x81000000 0x2 0 1 0>;
+ bus-range = <0x00 0xff>;
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 0>;
diff --git a/arch/arm/boot/dts/dra7-evm-common.dtsi b/arch/arm/boot/dts/dra7-evm-common.dtsi
new file mode 100644
index 000000000000..343e95f9a001
--- /dev/null
+++ b/arch/arm/boot/dts/dra7-evm-common.dtsi
@@ -0,0 +1,258 @@
+/*
+ * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/clk/ti-dra7-atl.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+ chosen {
+ stdout-path = &uart1;
+ };
+
+ extcon_usb1: extcon_usb1 {
+ compatible = "linux,extcon-usb-gpio";
+ id-gpio = <&pcf_gpio_21 1 GPIO_ACTIVE_HIGH>;
+ };
+
+ sound0: sound0 {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "DRA7xx-EVM";
+ simple-audio-card,widgets =
+ "Headphone", "Headphone Jack",
+ "Line", "Line Out",
+ "Microphone", "Mic Jack",
+ "Line", "Line In";
+ simple-audio-card,routing =
+ "Headphone Jack", "HPLOUT",
+ "Headphone Jack", "HPROUT",
+ "Line Out", "LLOUT",
+ "Line Out", "RLOUT",
+ "MIC3L", "Mic Jack",
+ "MIC3R", "Mic Jack",
+ "Mic Jack", "Mic Bias",
+ "LINE1L", "Line In",
+ "LINE1R", "Line In";
+ simple-audio-card,format = "dsp_b";
+ simple-audio-card,bitclock-master = <&sound0_master>;
+ simple-audio-card,frame-master = <&sound0_master>;
+ simple-audio-card,bitclock-inversion;
+
+ sound0_master: simple-audio-card,cpu {
+ sound-dai = <&mcasp3>;
+ system-clock-frequency = <5644800>;
+ };
+
+ simple-audio-card,codec {
+ sound-dai = <&tlv320aic3106>;
+ clocks = <&atl_clkin2_ck>;
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ led0 {
+ label = "dra7:usr1";
+ gpios = <&pcf_lcd 4 GPIO_ACTIVE_LOW>;
+ default-state = "off";
+ };
+
+ led1 {
+ label = "dra7:usr2";
+ gpios = <&pcf_lcd 5 GPIO_ACTIVE_LOW>;
+ default-state = "off";
+ };
+
+ led2 {
+ label = "dra7:usr3";
+ gpios = <&pcf_lcd 6 GPIO_ACTIVE_LOW>;
+ default-state = "off";
+ };
+
+ led3 {
+ label = "dra7:usr4";
+ gpios = <&pcf_lcd 7 GPIO_ACTIVE_LOW>;
+ default-state = "off";
+ };
+ };
+
+ gpio_keys {
+ compatible = "gpio-keys";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ autorepeat;
+
+ USER1 {
+ label = "btnUser1";
+ linux,code = <BTN_0>;
+ gpios = <&pcf_lcd 2 GPIO_ACTIVE_LOW>;
+ };
+
+ USER2 {
+ label = "btnUser2";
+ linux,code = <BTN_1>;
+ gpios = <&pcf_lcd 3 GPIO_ACTIVE_LOW>;
+ };
+ };
+};
+
+&i2c3 {
+ status = "okay";
+ clock-frequency = <400000>;
+};
+
+&mcspi1 {
+ status = "okay";
+};
+
+&mcspi2 {
+ status = "okay";
+};
+
+&uart1 {
+ status = "okay";
+ interrupts-extended = <&crossbar_mpu GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
+ <&dra7_pmx_core 0x3e0>;
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&uart3 {
+ status = "okay";
+};
+
+&qspi {
+ status = "okay";
+
+ spi-max-frequency = <76800000>;
+ m25p80@0 {
+ compatible = "s25fl256s1";
+ spi-max-frequency = <76800000>;
+ reg = <0>;
+ spi-tx-bus-width = <1>;
+ spi-rx-bus-width = <4>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ /* MTD partition table.
+ * The ROM checks the first four physical blocks
+ * for a valid file to boot and the flash here is
+ * 64KiB block size.
+ */
+ partition@0 {
+ label = "QSPI.SPL";
+ reg = <0x00000000 0x000010000>;
+ };
+ partition@1 {
+ label = "QSPI.SPL.backup1";
+ reg = <0x00010000 0x00010000>;
+ };
+ partition@2 {
+ label = "QSPI.SPL.backup2";
+ reg = <0x00020000 0x00010000>;
+ };
+ partition@3 {
+ label = "QSPI.SPL.backup3";
+ reg = <0x00030000 0x00010000>;
+ };
+ partition@4 {
+ label = "QSPI.u-boot";
+ reg = <0x00040000 0x00100000>;
+ };
+ partition@5 {
+ label = "QSPI.u-boot-spl-os";
+ reg = <0x00140000 0x00080000>;
+ };
+ partition@6 {
+ label = "QSPI.u-boot-env";
+ reg = <0x001c0000 0x00010000>;
+ };
+ partition@7 {
+ label = "QSPI.u-boot-env.backup1";
+ reg = <0x001d0000 0x0010000>;
+ };
+ partition@8 {
+ label = "QSPI.kernel";
+ reg = <0x001e0000 0x0800000>;
+ };
+ partition@9 {
+ label = "QSPI.file-system";
+ reg = <0x009e0000 0x01620000>;
+ };
+ };
+};
+
+&omap_dwc3_1 {
+ extcon = <&extcon_usb1>;
+};
+
+&usb1 {
+ dr_mode = "otg";
+ extcon = <&extcon_usb1>;
+};
+
+&usb2 {
+ dr_mode = "host";
+};
+
+&atl {
+ assigned-clocks = <&abe_dpll_sys_clk_mux>,
+ <&atl_gfclk_mux>,
+ <&dpll_abe_ck>,
+ <&dpll_abe_m2x2_ck>,
+ <&atl_clkin2_ck>;
+ assigned-clock-parents = <&sys_clkin2>, <&dpll_abe_m2_ck>;
+ assigned-clock-rates = <0>, <0>, <180633600>, <361267200>, <5644800>;
+
+ status = "okay";
+
+ atl2 {
+ bws = <DRA7_ATL_WS_MCASP2_FSX>;
+ aws = <DRA7_ATL_WS_MCASP3_FSX>;
+ };
+};
+
+&mcasp3 {
+ #sound-dai-cells = <0>;
+
+ assigned-clocks = <&mcasp3_ahclkx_mux>;
+ assigned-clock-parents = <&atl_clkin2_ck>;
+
+ status = "okay";
+
+ op-mode = <0>; /* MCASP_IIS_MODE */
+ tdm-slots = <2>;
+ /* 4 serializer */
+ serial-dir = < /* 0: INACTIVE, 1: TX, 2: RX */
+ 1 2 0 0
+ >;
+ tx-num-evt = <32>;
+ rx-num-evt = <32>;
+};
+
+&mailbox5 {
+ status = "okay";
+ mbox_ipu1_ipc3x: mbox_ipu1_ipc3x {
+ status = "okay";
+ };
+ mbox_dsp1_ipc3x: mbox_dsp1_ipc3x {
+ status = "okay";
+ };
+};
+
+&mailbox6 {
+ status = "okay";
+ mbox_ipu2_ipc3x: mbox_ipu2_ipc3x {
+ status = "okay";
+ };
+ mbox_dsp2_ipc3x: mbox_dsp2_ipc3x {
+ status = "okay";
+ };
+};
diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index 31a9e061ddd0..aa426dabb6c3 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -8,9 +8,8 @@
/dts-v1/;
#include "dra74x.dtsi"
-#include <dt-bindings/gpio/gpio.h>
-#include <dt-bindings/clk/ti-dra7-atl.h>
-#include <dt-bindings/input/input.h>
+#include "dra7-evm-common.dtsi"
+#include "dra74x-mmc-iodelay.dtsi"
/ {
model = "TI DRA742";
@@ -21,8 +20,12 @@
reg = <0x0 0x80000000 0x0 0x60000000>; /* 1536 MB */
};
- chosen {
- stdout-path = &uart1;
+ evm_1v8_sw: fixedregulator-evm_1v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "evm_1v8";
+ vin-supply = <&smps9_reg>;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
};
evm_3v3_sd: fixedregulator-sd {
@@ -51,11 +54,6 @@
regulator-max-microvolt = <1800000>;
};
- extcon_usb1: extcon_usb1 {
- compatible = "linux,extcon-usb-gpio";
- id-gpio = <&pcf_gpio_21 1 GPIO_ACTIVE_HIGH>;
- };
-
extcon_usb2: extcon_usb2 {
compatible = "linux,extcon-usb-gpio";
id-gpio = <&pcf_gpio_21 2 GPIO_ACTIVE_HIGH>;
@@ -73,85 +71,6 @@
gpio = <&gpio7 11 GPIO_ACTIVE_HIGH>;
};
- sound0: sound0 {
- compatible = "simple-audio-card";
- simple-audio-card,name = "DRA7xx-EVM";
- simple-audio-card,widgets =
- "Headphone", "Headphone Jack",
- "Line", "Line Out",
- "Microphone", "Mic Jack",
- "Line", "Line In";
- simple-audio-card,routing =
- "Headphone Jack", "HPLOUT",
- "Headphone Jack", "HPROUT",
- "Line Out", "LLOUT",
- "Line Out", "RLOUT",
- "MIC3L", "Mic Jack",
- "MIC3R", "Mic Jack",
- "Mic Jack", "Mic Bias",
- "LINE1L", "Line In",
- "LINE1R", "Line In";
- simple-audio-card,format = "dsp_b";
- simple-audio-card,bitclock-master = <&sound0_master>;
- simple-audio-card,frame-master = <&sound0_master>;
- simple-audio-card,bitclock-inversion;
-
- sound0_master: simple-audio-card,cpu {
- sound-dai = <&mcasp3>;
- system-clock-frequency = <5644800>;
- };
-
- simple-audio-card,codec {
- sound-dai = <&tlv320aic3106>;
- clocks = <&atl_clkin2_ck>;
- };
- };
-
- leds {
- compatible = "gpio-leds";
- led0 {
- label = "dra7:usr1";
- gpios = <&pcf_lcd 4 GPIO_ACTIVE_LOW>;
- default-state = "off";
- };
-
- led1 {
- label = "dra7:usr2";
- gpios = <&pcf_lcd 5 GPIO_ACTIVE_LOW>;
- default-state = "off";
- };
-
- led2 {
- label = "dra7:usr3";
- gpios = <&pcf_lcd 6 GPIO_ACTIVE_LOW>;
- default-state = "off";
- };
-
- led3 {
- label = "dra7:usr4";
- gpios = <&pcf_lcd 7 GPIO_ACTIVE_LOW>;
- default-state = "off";
- };
- };
-
- gpio_keys {
- compatible = "gpio-keys";
- #address-cells = <1>;
- #size-cells = <0>;
- autorepeat;
-
- USER1 {
- label = "btnUser1";
- linux,code = <BTN_0>;
- gpios = <&pcf_lcd 2 GPIO_ACTIVE_LOW>;
- };
-
- USER2 {
- label = "btnUser2";
- linux,code = <BTN_1>;
- gpios = <&pcf_lcd 3 GPIO_ACTIVE_LOW>;
- };
- };
};
&dra7_pmx_core {
@@ -406,136 +325,49 @@
};
};
-&i2c3 {
- status = "okay";
- clock-frequency = <400000>;
-};
-
-&mcspi1 {
- status = "okay";
-};
-
-&mcspi2 {
- status = "okay";
-};
-
-&uart1 {
- status = "okay";
- interrupts-extended = <&crossbar_mpu GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
- <&dra7_pmx_core 0x3e0>;
-};
-
-&uart2 {
- status = "okay";
-};
-
-&uart3 {
- status = "okay";
-};
-
&mmc1 {
status = "okay";
- pinctrl-names = "default";
- pinctrl-0 = <&mmc1_pins_default>;
vmmc-supply = <&evm_3v3_sd>;
- vmmc_aux-supply = <&ldo1_reg>;
+ vqmmc-supply = <&ldo1_reg>;
bus-width = <4>;
/*
* SDCD signal is not being used here - using the fact that GPIO mode
* is always hardwired.
*/
cd-gpios = <&gpio6 27 GPIO_ACTIVE_LOW>;
+ pinctrl-names = "default", "hs", "sdr12", "sdr25", "sdr50", "ddr50-rev11", "sdr104-rev11", "ddr50", "sdr104";
+ pinctrl-0 = <&mmc1_pins_default>;
+ pinctrl-1 = <&mmc1_pins_hs>;
+ pinctrl-2 = <&mmc1_pins_sdr12>;
+ pinctrl-3 = <&mmc1_pins_sdr25>;
+ pinctrl-4 = <&mmc1_pins_sdr50>;
+ pinctrl-5 = <&mmc1_pins_ddr50 &mmc1_iodelay_ddr_rev11_conf>;
+ pinctrl-6 = <&mmc1_pins_sdr104 &mmc1_iodelay_sdr104_rev11_conf>;
+ pinctrl-7 = <&mmc1_pins_ddr50 &mmc1_iodelay_ddr_rev20_conf>;
+ pinctrl-8 = <&mmc1_pins_sdr104 &mmc1_iodelay_sdr104_rev20_conf>;
};
&mmc2 {
status = "okay";
- pinctrl-names = "default";
- pinctrl-0 = <&mmc2_pins_default>;
- vmmc-supply = <&evm_3v3_sw>;
+ vmmc-supply = <&evm_1v8_sw>;
bus-width = <8>;
+ pinctrl-names = "default", "hs", "ddr_1_8v-rev11", "ddr_1_8v", "hs200_1_8v-rev11", "hs200_1_8v";
+ pinctrl-0 = <&mmc2_pins_default>;
+ pinctrl-1 = <&mmc2_pins_hs>;
+ pinctrl-2 = <&mmc2_pins_ddr_1_8v_rev11 &mmc2_iodelay_ddr_1_8v_rev11_conf>;
+ pinctrl-3 = <&mmc2_pins_ddr_rev20>;
+ pinctrl-4 = <&mmc2_pins_hs200 &mmc2_iodelay_hs200_rev11_conf>;
+ pinctrl-5 = <&mmc2_pins_hs200 &mmc2_iodelay_hs200_rev20_conf>;
};
&cpu0 {
cpu0-supply = <&smps123_reg>;
};
-&qspi {
- status = "okay";
-
- spi-max-frequency = <76800000>;
- m25p80@0 {
- compatible = "s25fl256s1";
- spi-max-frequency = <76800000>;
- reg = <0>;
- spi-tx-bus-width = <1>;
- spi-rx-bus-width = <4>;
- #address-cells = <1>;
- #size-cells = <1>;
-
- /* MTD partition table.
- * The ROM checks the first four physical blocks
- * for a valid file to boot and the flash here is
- * 64KiB block size.
- */
- partition@0 {
- label = "QSPI.SPL";
- reg = <0x00000000 0x000010000>;
- };
- partition@1 {
- label = "QSPI.SPL.backup1";
- reg = <0x00010000 0x00010000>;
- };
- partition@2 {
- label = "QSPI.SPL.backup2";
- reg = <0x00020000 0x00010000>;
- };
- partition@3 {
- label = "QSPI.SPL.backup3";
- reg = <0x00030000 0x00010000>;
- };
- partition@4 {
- label = "QSPI.u-boot";
- reg = <0x00040000 0x00100000>;
- };
- partition@5 {
- label = "QSPI.u-boot-spl-os";
- reg = <0x00140000 0x00080000>;
- };
- partition@6 {
- label = "QSPI.u-boot-env";
- reg = <0x001c0000 0x00010000>;
- };
- partition@7 {
- label = "QSPI.u-boot-env.backup1";
- reg = <0x001d0000 0x0010000>;
- };
- partition@8 {
- label = "QSPI.kernel";
- reg = <0x001e0000 0x0800000>;
- };
- partition@9 {
- label = "QSPI.file-system";
- reg = <0x009e0000 0x01620000>;
- };
- };
-};
-
-&omap_dwc3_1 {
- extcon = <&extcon_usb1>;
-};
-
&omap_dwc3_2 {
extcon = <&extcon_usb2>;
};
-&usb1 {
- dr_mode = "peripheral";
-};
-
-&usb2 {
- dr_mode = "host";
-};
-
&elm {
status = "okay";
};
@@ -555,6 +387,7 @@
interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
<1 IRQ_TYPE_NONE>; /* termcount */
rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 pin */
+ ti,nand-xfer-type = "prefetch-dma";
ti,nand-ecc-opt = "bch8";
ti,elm-id = <&elm>;
nand-bus-width = <16>;
@@ -665,57 +498,6 @@
pinctrl-2 = <&dcan1_pins_default>;
};
-&atl {
- assigned-clocks = <&abe_dpll_sys_clk_mux>,
- <&atl_gfclk_mux>,
- <&dpll_abe_ck>,
- <&dpll_abe_m2x2_ck>,
- <&atl_clkin2_ck>;
- assigned-clock-parents = <&sys_clkin2>, <&dpll_abe_m2_ck>;
- assigned-clock-rates = <0>, <0>, <180633600>, <361267200>, <5644800>;
-
- status = "okay";
-
- atl2 {
- bws = <DRA7_ATL_WS_MCASP2_FSX>;
- aws = <DRA7_ATL_WS_MCASP3_FSX>;
- };
-};
-
-&mcasp3 {
- #sound-dai-cells = <0>;
-
- assigned-clocks = <&mcasp3_ahclkx_mux>;
- assigned-clock-parents = <&atl_clkin2_ck>;
-
- status = "okay";
-
- op-mode = <0>; /* MCASP_IIS_MODE */
- tdm-slots = <2>;
- /* 4 serializer */
- serial-dir = < /* 0: INACTIVE, 1: TX, 2: RX */
- 1 2 0 0
- >;
- tx-num-evt = <32>;
- rx-num-evt = <32>;
-};
-
-&mailbox5 {
+&pcie1_rc {
status = "okay";
- mbox_ipu1_ipc3x: mbox_ipu1_ipc3x {
- status = "okay";
- };
- mbox_dsp1_ipc3x: mbox_dsp1_ipc3x {
- status = "okay";
- };
-};
-
-&mailbox6 {
- status = "okay";
- mbox_ipu2_ipc3x: mbox_ipu2_ipc3x {
- status = "okay";
- };
- mbox_dsp2_ipc3x: mbox_dsp2_ipc3x {
- status = "okay";
- };
};
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index e7144662af45..02a136a4661a 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -99,14 +99,14 @@
compatible = "operating-points-v2-ti-cpu";
syscon = <&scm_wkup>;
- opp_nom@1000000000 {
+ opp_nom-1000000000 {
opp-hz = /bits/ 64 <1000000000>;
opp-microvolt = <1060000 850000 1150000>;
opp-supported-hw = <0xFF 0x01>;
opp-suspend;
};
- opp_od@1176000000 {
+ opp_od-1176000000 {
opp-hz = /bits/ 64 <1176000000>;
opp-microvolt = <1160000 885000 1160000>;
opp-supported-hw = <0xFF 0x02>;
@@ -196,6 +196,7 @@
scm_conf1: scm_conf@1c04 {
compatible = "syscon";
reg = <0x1c04 0x0020>;
+ #syscon-cells = <2>;
};
scm_conf_pcie: scm_conf@1c24 {
@@ -287,7 +288,11 @@
#address-cells = <1>;
ranges = <0x51000000 0x51000000 0x3000
0x0 0x20000000 0x10000000>;
- pcie1: pcie@51000000 {
+ /**
+ * To enable PCI endpoint mode, disable the pcie1_rc
+ * node and enable pcie1_ep mode.
+ */
+ pcie1_rc: pcie@51000000 {
compatible = "ti,dra7-pcie";
reg = <0x51000000 0x2000>, <0x51002000 0x14c>, <0x1000 0x2000>;
reg-names = "rc_dbics", "ti_conf", "config";
@@ -309,12 +314,28 @@
<0 0 0 2 &pcie1_intc 2>,
<0 0 0 3 &pcie1_intc 3>,
<0 0 0 4 &pcie1_intc 4>;
+ status = "disabled";
pcie1_intc: interrupt-controller {
interrupt-controller;
#address-cells = <0>;
#interrupt-cells = <1>;
};
};
+
+ pcie1_ep: pcie_ep@51000000 {
+ compatible = "ti,dra7-pcie-ep";
+ reg = <0x51000000 0x28>, <0x51002000 0x14c>, <0x51001000 0x28>, <0x1000 0x10000000>;
+ reg-names = "ep_dbics", "ti_conf", "ep_dbics2", "addr_space";
+ interrupts = <0 232 0x4>;
+ num-lanes = <1>;
+ num-ib-windows = <4>;
+ num-ob-windows = <16>;
+ ti,hwmods = "pcie1";
+ phys = <&pcie1_phy>;
+ phy-names = "pcie-phy0";
+ ti,syscon-unaligned-access = <&scm_conf1 0x14 2>;
+ status = "disabled";
+ };
};
axi@1 {
@@ -418,6 +439,14 @@
reg = <0x40d00000 0x100>;
};
+ dra7_iodelay_core: padconf@4844a000 {
+ compatible = "ti,dra7-iodelay";
+ reg = <0x4844a000 0x0d1c>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #pinctrl-cells = <2>;
+ };
+
sdma: dma-controller@4a056000 {
compatible = "ti,omap4430-sdma";
reg = <0x4a056000 0x1000>;
@@ -1037,6 +1066,7 @@
dma-names = "tx", "rx";
status = "disabled";
pbias-supply = <&pbias_mmc_reg>;
+ max-frequency = <192000000>;
};
mmc2: mmc@480b4000 {
@@ -1048,6 +1078,7 @@
dmas = <&sdma_xbar 47>, <&sdma_xbar 48>;
dma-names = "tx", "rx";
status = "disabled";
+ max-frequency = <192000000>;
};
mmc3: mmc@480ad000 {
@@ -1059,6 +1090,8 @@
dmas = <&sdma_xbar 77>, <&sdma_xbar 78>;
dma-names = "tx", "rx";
status = "disabled";
+ /* Errata i887 limits max-frequency of MMC3 to 64 MHz */
+ max-frequency = <64000000>;
};
mmc4: mmc@480d1000 {
@@ -1070,6 +1103,7 @@
dmas = <&sdma_xbar 57>, <&sdma_xbar 58>;
dma-names = "tx", "rx";
status = "disabled";
+ max-frequency = <192000000>;
};
mmu0_dsp1: mmu@40d01000 {
diff --git a/arch/arm/boot/dts/dra71-evm.dts b/arch/arm/boot/dts/dra71-evm.dts
index 4d57a55473af..41c9132eb550 100644
--- a/arch/arm/boot/dts/dra71-evm.dts
+++ b/arch/arm/boot/dts/dra71-evm.dts
@@ -7,6 +7,7 @@
*/
#include "dra72-evm-common.dtsi"
+#include "dra72x-mmc-iodelay.dtsi"
#include <dt-bindings/net/ti-dp83867.h>
/ {
@@ -32,6 +33,16 @@
3000000 0x1>;
};
+ evm_1v8_sw: fixedregulator-evm_1v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "evm_1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ vin-supply = <&lp8732_buck0_reg>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
poweroff: gpio-poweroff {
compatible = "gpio-poweroff";
gpios = <&gpio7 30 GPIO_ACTIVE_HIGH>;
@@ -162,7 +173,24 @@
};
&mmc1 {
- vmmc_aux-supply = <&vpo_sd_1v8_3v3>;
+ pinctrl-names = "default", "hs", "sdr12", "sdr25", "sdr50", "ddr50", "sdr104";
+ pinctrl-0 = <&mmc1_pins_default>;
+ pinctrl-1 = <&mmc1_pins_hs>;
+ pinctrl-2 = <&mmc1_pins_sdr12>;
+ pinctrl-3 = <&mmc1_pins_sdr25>;
+ pinctrl-4 = <&mmc1_pins_sdr50>;
+ pinctrl-5 = <&mmc1_pins_ddr50_rev20 &mmc1_iodelay_ddr50_conf>;
+ pinctrl-6 = <&mmc1_pins_sdr104 &mmc1_iodelay_sdr104_rev20_conf>;
+ vqmmc-supply = <&vpo_sd_1v8_3v3>;
+};
+
+&mmc2 {
+ pinctrl-names = "default", "hs", "ddr_1_8v", "hs200_1_8v";
+ pinctrl-0 = <&mmc2_pins_default>;
+ pinctrl-1 = <&mmc2_pins_hs>;
+ pinctrl-2 = <&mmc2_pins_ddr_rev20 &mmc2_iodelay_ddr_conf>;
+ pinctrl-3 = <&mmc2_pins_hs200 &mmc2_iodelay_hs200_rev20_conf>;
+ vmmc-supply = <&evm_1v8_sw>;
};
&mac {
@@ -190,7 +218,8 @@
ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
ti,tx-internal-delay = <DP83867_RGMIIDCTL_250_PS>;
ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
- ti,impedance-control = <0x1f>;
+ ti,min-output-impedance;
+ ti,dp83867-rxctrl-strap-quirk;
};
dp83867_1: ethernet-phy@3 {
@@ -198,7 +227,8 @@
ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
ti,tx-internal-delay = <DP83867_RGMIIDCTL_250_PS>;
ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
- ti,impedance-control = <0x1f>;
+ ti,min-output-impedance;
+ ti,dp83867-rxctrl-strap-quirk;
};
};
diff --git a/arch/arm/boot/dts/dra72-evm-common.dtsi b/arch/arm/boot/dts/dra72-evm-common.dtsi
index ad24544adf0f..2e485a13dfd7 100644
--- a/arch/arm/boot/dts/dra72-evm-common.dtsi
+++ b/arch/arm/boot/dts/dra72-evm-common.dtsi
@@ -311,6 +311,7 @@
interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
<1 IRQ_TYPE_NONE>; /* termcount */
rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 pin */
+ ti,nand-xfer-type = "prefetch-dma";
ti,nand-ecc-opt = "bch8";
ti,elm-id = <&elm>;
nand-bus-width = <16>;
@@ -392,7 +393,8 @@
};
&usb1 {
- dr_mode = "peripheral";
+ dr_mode = "otg";
+ extcon = <&extcon_usb1>;
};
&usb2 {
@@ -418,8 +420,6 @@
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&mmc2_pins_default>;
-
- vmmc-supply = <&evm_3v3_sw>;
bus-width = <8>;
ti,non-removable;
max-frequency = <192000000>;
@@ -563,3 +563,7 @@
status = "okay";
};
};
+
+&pcie1_rc {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/dra72-evm-revc.dts b/arch/arm/boot/dts/dra72-evm-revc.dts
index 3ecac56bf504..bf588d00728d 100644
--- a/arch/arm/boot/dts/dra72-evm-revc.dts
+++ b/arch/arm/boot/dts/dra72-evm-revc.dts
@@ -6,6 +6,7 @@
* published by the Free Software Foundation.
*/
#include "dra72-evm-common.dtsi"
+#include "dra72x-mmc-iodelay.dtsi"
#include <dt-bindings/net/ti-dp83867.h>
/ {
@@ -15,6 +16,16 @@
device_type = "memory";
reg = <0x0 0x80000000 0x0 0x80000000>; /* 2GB */
};
+
+ evm_1v8_sw: fixedregulator-evm_1v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "evm_1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ vin-supply = <&smps4_reg>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
};
&i2c1 {
@@ -70,6 +81,7 @@
ti,min-output-impedance;
interrupt-parent = <&gpio6>;
interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
+ ti,dp83867-rxctrl-strap-quirk;
};
dp83867_1: ethernet-phy@3 {
@@ -80,5 +92,27 @@
ti,min-output-impedance;
interrupt-parent = <&gpio6>;
interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
+ ti,dp83867-rxctrl-strap-quirk;
};
};
+
+&mmc1 {
+ pinctrl-names = "default", "hs", "sdr12", "sdr25", "sdr50", "ddr50", "sdr104";
+ pinctrl-0 = <&mmc1_pins_default>;
+ pinctrl-1 = <&mmc1_pins_hs>;
+ pinctrl-2 = <&mmc1_pins_sdr12>;
+ pinctrl-3 = <&mmc1_pins_sdr25>;
+ pinctrl-4 = <&mmc1_pins_sdr50>;
+ pinctrl-5 = <&mmc1_pins_ddr50_rev20 &mmc1_iodelay_ddr50_conf>;
+ pinctrl-6 = <&mmc1_pins_sdr104 &mmc1_iodelay_sdr104_rev20_conf>;
+ vqmmc-supply = <&ldo1_reg>;
+};
+
+&mmc2 {
+ pinctrl-names = "default", "hs", "ddr_1_8v", "hs200_1_8v";
+ pinctrl-0 = <&mmc2_pins_default>;
+ pinctrl-1 = <&mmc2_pins_hs>;
+ pinctrl-2 = <&mmc2_pins_ddr_rev20 &mmc2_iodelay_ddr_conf>;
+ pinctrl-3 = <&mmc2_pins_hs200 &mmc2_iodelay_hs200_rev20_conf>;
+ vmmc-supply = <&evm_1v8_sw>;
+};
diff --git a/arch/arm/boot/dts/dra72-evm-tps65917.dtsi b/arch/arm/boot/dts/dra72-evm-tps65917.dtsi
index e6df676886c0..57bfe5caf5e4 100644
--- a/arch/arm/boot/dts/dra72-evm-tps65917.dtsi
+++ b/arch/arm/boot/dts/dra72-evm-tps65917.dtsi
@@ -146,5 +146,5 @@
};
&mmc1 {
- vmmc_aux-supply = <&ldo1_reg>;
+ vqmmc-supply = <&ldo1_reg>;
};
diff --git a/arch/arm/boot/dts/dra72-evm.dts b/arch/arm/boot/dts/dra72-evm.dts
index cd9c4ff12654..c572693b1665 100644
--- a/arch/arm/boot/dts/dra72-evm.dts
+++ b/arch/arm/boot/dts/dra72-evm.dts
@@ -6,6 +6,7 @@
* published by the Free Software Foundation.
*/
#include "dra72-evm-common.dtsi"
+#include "dra72x-mmc-iodelay.dtsi"
/ {
model = "TI DRA722";
@@ -13,6 +14,16 @@
device_type = "memory";
reg = <0x0 0x80000000 0x0 0x40000000>; /* 1024 MB */
};
+
+ evm_1v8_sw: fixedregulator-evm_1v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "evm_1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ vin-supply = <&smps4_reg>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
};
&i2c1 {
@@ -43,3 +54,24 @@
phy_id = <&davinci_mdio>, <3>;
phy-mode = "rgmii";
};
+
+&mmc1 {
+ pinctrl-names = "default", "hs", "sdr12", "sdr25", "sdr50", "ddr50", "sdr104";
+ pinctrl-0 = <&mmc1_pins_default>;
+ pinctrl-1 = <&mmc1_pins_hs>;
+ pinctrl-2 = <&mmc1_pins_sdr12>;
+ pinctrl-3 = <&mmc1_pins_sdr25>;
+ pinctrl-4 = <&mmc1_pins_sdr50>;
+ pinctrl-5 = <&mmc1_pins_ddr50_rev10>;
+ pinctrl-6 = <&mmc1_pins_sdr104 &mmc1_iodelay_sdr104_rev10_conf>;
+ vqmmc-supply = <&ldo1_reg>;
+};
+
+&mmc2 {
+ pinctrl-names = "default", "hs", "ddr_1_8v", "hs200_1_8v";
+ pinctrl-0 = <&mmc2_pins_default>;
+ pinctrl-1 = <&mmc2_pins_hs>;
+ pinctrl-2 = <&mmc2_pins_ddr_rev10>;
+ pinctrl-3 = <&mmc2_pins_hs200 &mmc2_iodelay_hs200_rev10_conf>;
+ vmmc-supply = <&evm_1v8_sw>;
+};
diff --git a/arch/arm/boot/dts/dra72x-mmc-iodelay.dtsi b/arch/arm/boot/dts/dra72x-mmc-iodelay.dtsi
new file mode 100644
index 000000000000..088013c6dc6e
--- /dev/null
+++ b/arch/arm/boot/dts/dra72x-mmc-iodelay.dtsi
@@ -0,0 +1,350 @@
+/*
+ * MMC IOdelay values for TI's DRA72x, DRA71x and AM571x SoCs.
+ *
+ * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+/*
+ * Rules for modifying this file:
+ * a) Update of this file should typically correspond to a datamanual revision.
+ * Datamanual revision that was used should be updated in comment below.
+ * If there is no update to datamanual, do not update the values. If you
+ * need to use values different from that recommended by the datamanual
+ * for your design, then you should consider adding values to the device-
+ * -tree file for your board directly.
+ * b) We keep the mode names as close to the datamanual as possible. So
+ * if the manual calls a mode, DDR50, or DDR or DDR 1.8v or DDR 3.3v,
+ * we follow that in code too.
+ * c) If the values change between multiple revisions of silicon, we add
+ * a revision tag to both the new and old entry. Use 'rev10' for PG 1.0,
+ * 'rev20' for PG 2.0 and so on.
+ * d) The node name and node label should be the exact same string. This is
+ * to curb naming creativity and achieve consistency.
+ * e) If in future, DRA71x and DRA72x values differ, then add 'dra71_' and
+ * 'dra72_' tag to entries. Both the new and old entries should gain a tag.
+ *
+ * Datamanual Revisions:
+ *
+ * AM571x Silicon Revision 2.0: SPRS957D, Revised January 2017
+ * AM571x Silicon Revision 1.0: SPRS919M, Revised November 2017
+ * DRA71x : SPRS960B, Revised February 2017
+ */
+
+&dra7_pmx_core {
+ mmc1_pins_default: mmc1_pins_default {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_clk.clk */
+ DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_cmd.cmd */
+ DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat0.dat0 */
+ DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat1.dat1 */
+ DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat2.dat2 */
+ DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat3.dat3 */
+ >;
+ };
+
+ mmc1_pins_sdr12: mmc1_pins_sdr12 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_clk.clk */
+ DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_cmd.cmd */
+ DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat0.dat0 */
+ DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat1.dat1 */
+ DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat2.dat2 */
+ DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat3.dat3 */
+ >;
+ };
+
+ mmc1_pins_hs: mmc1_pins_hs {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_clk.clk */
+ DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_cmd.cmd */
+ DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat0.dat0 */
+ DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat1.dat1 */
+ DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat2.dat2 */
+ DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat3.dat3 */
+ >;
+ };
+
+ mmc1_pins_sdr25: mmc1_pins_sdr25 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_clk.clk */
+ DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_cmd.cmd */
+ DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat0.dat0 */
+ DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat1.dat1 */
+ DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat2.dat2 */
+ DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat3.dat3 */
+ >;
+ };
+
+ mmc1_pins_sdr50: mmc1_pins_sdr50 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE15 | MUX_MODE0) /* mmc1_clk.clk */
+ DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE15 | MUX_MODE0) /* mmc1_cmd.cmd */
+ DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE15 | MUX_MODE0) /* mmc1_dat0.dat0 */
+ DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE15 | MUX_MODE0) /* mmc1_dat1.dat1 */
+ DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE15 | MUX_MODE0) /* mmc1_dat2.dat2 */
+ DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE15 | MUX_MODE0) /* mmc1_dat3.dat3 */
+ >;
+ };
+
+ mmc1_pins_ddr50_rev10: mmc1_pins_ddr50_rev10 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE14 | MUX_MODE0) /* mmc1_clk.mmc1_clk */
+ DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE14 | MUX_MODE0) /* mmc1_cmd.mmc1_cmd */
+ DRA7XX_CORE_IOPAD(0x375C, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE14 | MUX_MODE0) /* mmc1_dat0.mmc1_dat0 */
+ DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE14 | MUX_MODE0) /* mmc1_dat1.mmc1_dat1 */
+ DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE14 | MUX_MODE0) /* mmc1_dat2.mmc1_dat2 */
+ DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE14 | MUX_MODE0) /* mmc1_dat3.mmc1_dat3 */
+ >;
+ };
+
+ mmc1_pins_ddr50_rev20: mmc1_pins_ddr50_rev20 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_clk.clk */
+ DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_cmd.cmd */
+ DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_dat0.dat0 */
+ DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_dat1.dat1 */
+ DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_dat2.dat2 */
+ DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_dat3.dat3 */
+ >;
+ };
+
+ mmc1_pins_sdr104: mmc1_pins_sdr104 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_clk.clk */
+ DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_cmd.cmd */
+ DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_dat0.dat0 */
+ DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_dat1.dat1 */
+ DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_dat2.dat2 */
+ DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_dat3.dat3 */
+ >;
+ };
+
+ mmc2_pins_default: mmc2_pins_default {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x349c, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a23.mmc2_clk */
+ DRA7XX_CORE_IOPAD(0x34b0, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_cs1.mmc2_cmd */
+ DRA7XX_CORE_IOPAD(0x34a0, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a24.mmc2_dat0 */
+ DRA7XX_CORE_IOPAD(0x34a4, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a25.mmc2_dat1 */
+ DRA7XX_CORE_IOPAD(0x34a8, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a26.mmc2_dat2 */
+ DRA7XX_CORE_IOPAD(0x34ac, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a27.mmc2_dat3 */
+ DRA7XX_CORE_IOPAD(0x348c, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a19.mmc2_dat4 */
+ DRA7XX_CORE_IOPAD(0x3490, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a20.mmc2_dat5 */
+ DRA7XX_CORE_IOPAD(0x3494, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a21.mmc2_dat6 */
+ DRA7XX_CORE_IOPAD(0x3498, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */
+ >;
+ };
+
+ mmc2_pins_hs: mmc2_pins_hs {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x349c, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a23.mmc2_clk */
+ DRA7XX_CORE_IOPAD(0x34b0, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_cs1.mmc2_cmd */
+ DRA7XX_CORE_IOPAD(0x34a0, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a24.mmc2_dat0 */
+ DRA7XX_CORE_IOPAD(0x34a4, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a25.mmc2_dat1 */
+ DRA7XX_CORE_IOPAD(0x34a8, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a26.mmc2_dat2 */
+ DRA7XX_CORE_IOPAD(0x34ac, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a27.mmc2_dat3 */
+ DRA7XX_CORE_IOPAD(0x348c, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a19.mmc2_dat4 */
+ DRA7XX_CORE_IOPAD(0x3490, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a20.mmc2_dat5 */
+ DRA7XX_CORE_IOPAD(0x3494, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a21.mmc2_dat6 */
+ DRA7XX_CORE_IOPAD(0x3498, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */
+ >;
+ };
+
+ mmc2_pins_ddr_rev10: mmc2_pins_ddr_rev10 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x348c, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a19.mmc2_dat4 */
+ DRA7XX_CORE_IOPAD(0x3490, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a20.mmc2_dat5 */
+ DRA7XX_CORE_IOPAD(0x3494, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a21.mmc2_dat6 */
+ DRA7XX_CORE_IOPAD(0x3498, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */
+ DRA7XX_CORE_IOPAD(0x349c, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a23.mmc2_clk */
+ DRA7XX_CORE_IOPAD(0x34a0, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a24.mmc2_dat0 */
+ DRA7XX_CORE_IOPAD(0x34a4, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a25.mmc2_dat1 */
+ DRA7XX_CORE_IOPAD(0x34a8, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a26.mmc2_dat2 */
+ DRA7XX_CORE_IOPAD(0x34ac, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a27.mmc2_dat3 */
+ DRA7XX_CORE_IOPAD(0x34b0, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_cs1.mmc2_cmd */
+ >;
+ };
+
+ mmc2_pins_ddr_rev20: mmc2_pins_ddr_rev20 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x349c, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a23.mmc2_clk */
+ DRA7XX_CORE_IOPAD(0x34b0, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_cs1.mmc2_cmd */
+ DRA7XX_CORE_IOPAD(0x34a0, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a24.mmc2_dat0 */
+ DRA7XX_CORE_IOPAD(0x34a4, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a25.mmc2_dat1 */
+ DRA7XX_CORE_IOPAD(0x34a8, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a26.mmc2_dat2 */
+ DRA7XX_CORE_IOPAD(0x34ac, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a27.mmc2_dat3 */
+ DRA7XX_CORE_IOPAD(0x348c, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a19.mmc2_dat4 */
+ DRA7XX_CORE_IOPAD(0x3490, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a20.mmc2_dat5 */
+ DRA7XX_CORE_IOPAD(0x3494, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a21.mmc2_dat6 */
+ DRA7XX_CORE_IOPAD(0x3498, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */
+ >;
+ };
+
+ mmc2_pins_hs200: mmc2_pins_hs200 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x349c, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a23.mmc2_clk */
+ DRA7XX_CORE_IOPAD(0x34b0, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_cs1.mmc2_cmd */
+ DRA7XX_CORE_IOPAD(0x34a0, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a24.mmc2_dat0 */
+ DRA7XX_CORE_IOPAD(0x34a4, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a25.mmc2_dat1 */
+ DRA7XX_CORE_IOPAD(0x34a8, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a26.mmc2_dat2 */
+ DRA7XX_CORE_IOPAD(0x34ac, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a27.mmc2_dat3 */
+ DRA7XX_CORE_IOPAD(0x348c, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a19.mmc2_dat4 */
+ DRA7XX_CORE_IOPAD(0x3490, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a20.mmc2_dat5 */
+ DRA7XX_CORE_IOPAD(0x3494, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a21.mmc2_dat6 */
+ DRA7XX_CORE_IOPAD(0x3498, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */
+ >;
+ };
+};
+
+&dra7_iodelay_core {
+
+ /* Corresponds to MMC1_MANUAL1 in datamanual */
+ mmc1_iodelay_ddr50_conf: mmc1_iodelay_ddr50_conf {
+ pinctrl-pin-array = <
+ 0x618 A_DELAY_PS(588) G_DELAY_PS(0) /* CFG_MMC1_CLK_IN */
+ 0x624 A_DELAY_PS(1000) G_DELAY_PS(0) /* CFG_MMC1_CMD_IN */
+ 0x630 A_DELAY_PS(1375) G_DELAY_PS(0) /* CFG_MMC1_DAT0_IN */
+ 0x63C A_DELAY_PS(1000) G_DELAY_PS(0) /* CFG_MMC1_DAT1_IN */
+ 0x648 A_DELAY_PS(1000) G_DELAY_PS(0) /* CFG_MMC1_DAT2_IN */
+ 0x654 A_DELAY_PS(1000) G_DELAY_PS(0) /* CFG_MMC1_DAT3_IN */
+ 0x620 A_DELAY_PS(1230) G_DELAY_PS(0) /* CFG_MMC1_CLK_OUT */
+ 0x62C A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_CMD_OUT */
+ 0x638 A_DELAY_PS(56) G_DELAY_PS(0) /* CFG_MMC1_DAT0_OUT */
+ 0x644 A_DELAY_PS(76) G_DELAY_PS(0) /* CFG_MMC1_DAT1_OUT */
+ 0x650 A_DELAY_PS(91) G_DELAY_PS(0) /* CFG_MMC1_DAT2_OUT */
+ 0x65C A_DELAY_PS(99) G_DELAY_PS(0) /* CFG_MMC1_DAT3_OUT */
+ 0x628 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_CMD_OEN */
+ 0x634 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT0_OEN */
+ 0x640 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT1_OEN */
+ 0x64C A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT2_OEN */
+ 0x658 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT3_OEN */
+ >;
+ };
+
+ /* Corresponds to MMC1_MANUAL2 in datamanual */
+ mmc1_iodelay_sdr104_rev10_conf: mmc1_iodelay_sdr104_rev10_conf {
+ pinctrl-pin-array = <
+ 0x620 A_DELAY_PS(560) G_DELAY_PS(365) /* CFG_MMC1_CLK_OUT */
+ 0x62c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_CMD_OUT */
+ 0x638 A_DELAY_PS(29) G_DELAY_PS(0) /* CFG_MMC1_DAT0_OUT */
+ 0x644 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT1_OUT */
+ 0x650 A_DELAY_PS(47) G_DELAY_PS(0) /* CFG_MMC1_DAT2_OUT */
+ 0x65c A_DELAY_PS(30) G_DELAY_PS(0) /* CFG_MMC1_DAT3_OUT */
+ 0x628 A_DELAY_PS(125) G_DELAY_PS(0) /* CFG_MMC1_CMD_OEN */
+ 0x634 A_DELAY_PS(43) G_DELAY_PS(0) /* CFG_MMC1_DAT0_OEN */
+ 0x640 A_DELAY_PS(433) G_DELAY_PS(0) /* CFG_MMC1_DAT1_OEN */
+ 0x64c A_DELAY_PS(287) G_DELAY_PS(0) /* CFG_MMC1_DAT2_OEN */
+ 0x658 A_DELAY_PS(351) G_DELAY_PS(0) /* CFG_MMC1_DAT3_OEN */
+ >;
+ };
+
+ /* Corresponds to MMC1_MANUAL2 in datamanual */
+ mmc1_iodelay_sdr104_rev20_conf: mmc1_iodelay_sdr104_rev20_conf {
+ pinctrl-pin-array = <
+ 0x620 A_DELAY_PS(520) G_DELAY_PS(320) /* CFG_MMC1_CLK_OUT */
+ 0x62c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_CMD_OUT */
+ 0x638 A_DELAY_PS(40) G_DELAY_PS(0) /* CFG_MMC1_DAT0_OUT */
+ 0x644 A_DELAY_PS(83) G_DELAY_PS(0) /* CFG_MMC1_DAT1_OUT */
+ 0x650 A_DELAY_PS(98) G_DELAY_PS(0) /* CFG_MMC1_DAT2_OUT */
+ 0x65c A_DELAY_PS(106) G_DELAY_PS(0) /* CFG_MMC1_DAT3_OUT */
+ 0x628 A_DELAY_PS(51) G_DELAY_PS(0) /* CFG_MMC1_CMD_OEN */
+ 0x634 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT0_OEN */
+ 0x640 A_DELAY_PS(363) G_DELAY_PS(0) /* CFG_MMC1_DAT1_OEN */
+ 0x64c A_DELAY_PS(199) G_DELAY_PS(0) /* CFG_MMC1_DAT2_OEN */
+ 0x658 A_DELAY_PS(273) G_DELAY_PS(0) /* CFG_MMC1_DAT3_OEN */
+ >;
+ };
+
+ /* Corresponds to MMC2_MANUAL1 in datamanual */
+ mmc2_iodelay_ddr_conf: mmc2_iodelay_ddr_conf {
+ pinctrl-pin-array = <
+ 0x18c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A19_IN */
+ 0x1a4 A_DELAY_PS(119) G_DELAY_PS(0) /* CFG_GPMC_A20_IN */
+ 0x1b0 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A21_IN */
+ 0x1bc A_DELAY_PS(18) G_DELAY_PS(0) /* CFG_GPMC_A22_IN */
+ 0x1c8 A_DELAY_PS(894) G_DELAY_PS(0) /* CFG_GPMC_A23_IN */
+ 0x1d4 A_DELAY_PS(30) G_DELAY_PS(0) /* CFG_GPMC_A24_IN */
+ 0x1e0 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A25_IN */
+ 0x1ec A_DELAY_PS(23) G_DELAY_PS(0) /* CFG_GPMC_A26_IN */
+ 0x1f8 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A27_IN */
+ 0x360 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_CS1_IN */
+ 0x194 A_DELAY_PS(152) G_DELAY_PS(0) /* CFG_GPMC_A19_OUT */
+ 0x1ac A_DELAY_PS(206) G_DELAY_PS(0) /* CFG_GPMC_A20_OUT */
+ 0x1b8 A_DELAY_PS(78) G_DELAY_PS(0) /* CFG_GPMC_A21_OUT */
+ 0x1c4 A_DELAY_PS(2) G_DELAY_PS(0) /* CFG_GPMC_A22_OUT */
+ 0x1d0 A_DELAY_PS(266) G_DELAY_PS(0) /* CFG_GPMC_A23_OUT */
+ 0x1dc A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A24_OUT */
+ 0x1e8 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A25_OUT */
+ 0x1f4 A_DELAY_PS(43) G_DELAY_PS(0) /* CFG_GPMC_A26_OUT */
+ 0x200 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A27_OUT */
+ 0x368 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_CS1_OUT */
+ 0x190 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A19_OEN */
+ 0x1a8 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A20_OEN */
+ 0x1b4 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A21_OEN */
+ 0x1c0 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A22_OEN */
+ 0x1d8 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A24_OEN */
+ 0x1e4 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A25_OEN */
+ 0x1f0 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A26_OEN */
+ 0x1fc A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A27_OEN */
+ 0x364 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_CS1_OEN */
+ >;
+ };
+
+ /* Corresponds to MMC2_MANUAL3 in datamanual */
+ mmc2_iodelay_hs200_rev10_conf: mmc2_iodelay_hs200_rev10_conf {
+ pinctrl-pin-array = <
+ 0x194 A_DELAY_PS(150) G_DELAY_PS(95) /* CFG_GPMC_A19_OUT */
+ 0x1ac A_DELAY_PS(250) G_DELAY_PS(0) /* CFG_GPMC_A20_OUT */
+ 0x1b8 A_DELAY_PS(125) G_DELAY_PS(0) /* CFG_GPMC_A21_OUT */
+ 0x1c4 A_DELAY_PS(100) G_DELAY_PS(0) /* CFG_GPMC_A22_OUT */
+ 0x1d0 A_DELAY_PS(870) G_DELAY_PS(415) /* CFG_GPMC_A23_OUT */
+ 0x1dc A_DELAY_PS(30) G_DELAY_PS(0) /* CFG_GPMC_A24_OUT */
+ 0x1e8 A_DELAY_PS(200) G_DELAY_PS(0) /* CFG_GPMC_A25_OUT */
+ 0x1f4 A_DELAY_PS(200) G_DELAY_PS(0) /* CFG_GPMC_A26_OUT */
+ 0x200 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A27_OUT */
+ 0x368 A_DELAY_PS(240) G_DELAY_PS(0) /* CFG_GPMC_CS1_OUT */
+ 0x190 A_DELAY_PS(695) G_DELAY_PS(0) /* CFG_GPMC_A19_OEN */
+ 0x1a8 A_DELAY_PS(924) G_DELAY_PS(0) /* CFG_GPMC_A20_OEN */
+ 0x1b4 A_DELAY_PS(719) G_DELAY_PS(0) /* CFG_GPMC_A21_OEN */
+ 0x1c0 A_DELAY_PS(824) G_DELAY_PS(0) /* CFG_GPMC_A22_OEN */
+ 0x1d8 A_DELAY_PS(877) G_DELAY_PS(0) /* CFG_GPMC_A24_OEN */
+ 0x1e4 A_DELAY_PS(446) G_DELAY_PS(0) /* CFG_GPMC_A25_OEN */
+ 0x1f0 A_DELAY_PS(847) G_DELAY_PS(0) /* CFG_GPMC_A26_OEN */
+ 0x1fc A_DELAY_PS(586) G_DELAY_PS(0) /* CFG_GPMC_A27_OEN */
+ 0x364 A_DELAY_PS(1039) G_DELAY_PS(0) /* CFG_GPMC_CS1_OEN */
+ >;
+ };
+
+ /* Corresponds to MMC2_MANUAL3 in datamanual */
+ mmc2_iodelay_hs200_rev20_conf: mmc2_iodelay_hs200_rev20_conf {
+ pinctrl-pin-array = <
+ 0x194 A_DELAY_PS(285) G_DELAY_PS(0) /* CFG_GPMC_A19_OUT */
+ 0x1ac A_DELAY_PS(189) G_DELAY_PS(0) /* CFG_GPMC_A20_OUT */
+ 0x1b8 A_DELAY_PS(0) G_DELAY_PS(120) /* CFG_GPMC_A21_OUT */
+ 0x1c4 A_DELAY_PS(0) G_DELAY_PS(70) /* CFG_GPMC_A22_OUT */
+ 0x1d0 A_DELAY_PS(730) G_DELAY_PS(360) /* CFG_GPMC_A23_OUT */
+ 0x1dc A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A24_OUT */
+ 0x1e8 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A25_OUT */
+ 0x1f4 A_DELAY_PS(70) G_DELAY_PS(0) /* CFG_GPMC_A26_OUT */
+ 0x200 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A27_OUT */
+ 0x368 A_DELAY_PS(0) G_DELAY_PS(120) /* CFG_GPMC_CS1_OUT */
+ 0x190 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A19_OEN */
+ 0x1a8 A_DELAY_PS(231) G_DELAY_PS(0) /* CFG_GPMC_A20_OEN */
+ 0x1b4 A_DELAY_PS(39) G_DELAY_PS(0) /* CFG_GPMC_A21_OEN */
+ 0x1c0 A_DELAY_PS(91) G_DELAY_PS(0) /* CFG_GPMC_A22_OEN */
+ 0x1d8 A_DELAY_PS(176) G_DELAY_PS(0) /* CFG_GPMC_A24_OEN */
+ 0x1e4 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A25_OEN */
+ 0x1f0 A_DELAY_PS(101) G_DELAY_PS(0) /* CFG_GPMC_A26_OEN */
+ 0x1fc A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A27_OEN */
+ 0x364 A_DELAY_PS(360) G_DELAY_PS(0) /* CFG_GPMC_CS1_OEN */
+ >;
+ };
+};
diff --git a/arch/arm/boot/dts/dra74x-mmc-iodelay.dtsi b/arch/arm/boot/dts/dra74x-mmc-iodelay.dtsi
new file mode 100644
index 000000000000..28ebb4eb884a
--- /dev/null
+++ b/arch/arm/boot/dts/dra74x-mmc-iodelay.dtsi
@@ -0,0 +1,647 @@
+/*
+ * MMC IOdelay values for TI's DRA74x, DRA75x and AM572x SoCs.
+ *
+ * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+/*
+ * Rules for modifying this file:
+ * a) Update of this file should typically correspond to a datamanual revision.
+ * Datamanual revision that was used should be updated in comment below.
+ * If there is no update to datamanual, do not update the values. If you
+ * need to use values different from that recommended by the datamanual
+ * for your design, then you should consider adding values to the device-
+ * -tree file for your board directly.
+ * b) We keep the mode names as close to the datamanual as possible. So
+ * if the manual calls a mode, DDR50, or DDR or DDR 1.8v or DDR 3.3v,
+ * we follow that in code too.
+ * c) If the values change between multiple revisions of silicon, we add
+ * a revision tag to both the new and old entry. Use 'rev11' for PG 1.1,
+ * 'rev20' for PG 2.0 and so on.
+ * d) The node name and node label should be the exact same string. This is
+ * to curb naming creativity and achieve consistency.
+ *
+ * Datamanual Revisions:
+ *
+ * AM572x Silicon Revision 2.0: SPRS953B, Revised November 2016
+ * AM572x Silicon Revision 1.1: SPRS915R, Revised November 2016
+ *
+ */
+
+&dra7_pmx_core {
+ mmc1_pins_default: mmc1_pins_default {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_clk.clk */
+ DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_cmd.cmd */
+ DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat0.dat0 */
+ DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat1.dat1 */
+ DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat2.dat2 */
+ DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat3.dat3 */
+ >;
+ };
+
+ mmc1_pins_sdr12: mmc1_pins_sdr12 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_clk.clk */
+ DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_cmd.cmd */
+ DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat0.dat0 */
+ DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat1.dat1 */
+ DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat2.dat2 */
+ DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat3.dat3 */
+ >;
+ };
+
+ mmc1_pins_hs: mmc1_pins_hs {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0) /* mmc1_clk.clk */
+ DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0) /* mmc1_cmd.cmd */
+ DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0) /* mmc1_dat0.dat0 */
+ DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0) /* mmc1_dat1.dat1 */
+ DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0) /* mmc1_dat2.dat2 */
+ DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0) /* mmc1_dat3.dat3 */
+ >;
+ };
+
+ mmc1_pins_sdr25: mmc1_pins_sdr25 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0) /* mmc1_clk.clk */
+ DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0) /* mmc1_cmd.cmd */
+ DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0) /* mmc1_dat0.dat0 */
+ DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0) /* mmc1_dat1.dat1 */
+ DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0) /* mmc1_dat2.dat2 */
+ DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE11 | MUX_MODE0) /* mmc1_dat3.dat3 */
+ >;
+ };
+
+ mmc1_pins_sdr50: mmc1_pins_sdr50 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE10 | MUX_MODE0) /* mmc1_clk.clk */
+ DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE10 | MUX_MODE0) /* mmc1_cmd.cmd */
+ DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE10 | MUX_MODE0) /* mmc1_dat0.dat0 */
+ DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE10 | MUX_MODE0) /* mmc1_dat1.dat1 */
+ DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE10 | MUX_MODE0) /* mmc1_dat2.dat2 */
+ DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MUX_VIRTUAL_MODE10 | MUX_MODE0) /* mmc1_dat3.dat3 */
+ >;
+ };
+
+ mmc1_pins_ddr50: mmc1_pins_ddr50 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_clk.clk */
+ DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_cmd.cmd */
+ DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_dat0.dat0 */
+ DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_dat1.dat1 */
+ DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_dat2.dat2 */
+ DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_dat3.dat3 */
+ >;
+ };
+
+ mmc1_pins_sdr104: mmc1_pins_sdr104 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_clk.clk */
+ DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_cmd.cmd */
+ DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_dat0.dat0 */
+ DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_dat1.dat1 */
+ DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_dat2.dat2 */
+ DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0) /* mmc1_dat3.dat3 */
+ >;
+ };
+
+ mmc2_pins_default: mmc2_pins_default {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x349c, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a23.mmc2_clk */
+ DRA7XX_CORE_IOPAD(0x34b0, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_cs1.mmc2_cmd */
+ DRA7XX_CORE_IOPAD(0x34a0, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a24.mmc2_dat0 */
+ DRA7XX_CORE_IOPAD(0x34a4, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a25.mmc2_dat1 */
+ DRA7XX_CORE_IOPAD(0x34a8, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a26.mmc2_dat2 */
+ DRA7XX_CORE_IOPAD(0x34ac, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a27.mmc2_dat3 */
+ DRA7XX_CORE_IOPAD(0x348c, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a19.mmc2_dat4 */
+ DRA7XX_CORE_IOPAD(0x3490, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a20.mmc2_dat5 */
+ DRA7XX_CORE_IOPAD(0x3494, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a21.mmc2_dat6 */
+ DRA7XX_CORE_IOPAD(0x3498, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */
+ >;
+ };
+
+ mmc2_pins_hs: mmc2_pins_hs {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x349c, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a23.mmc2_clk */
+ DRA7XX_CORE_IOPAD(0x34b0, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_cs1.mmc2_cmd */
+ DRA7XX_CORE_IOPAD(0x34a0, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a24.mmc2_dat0 */
+ DRA7XX_CORE_IOPAD(0x34a4, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a25.mmc2_dat1 */
+ DRA7XX_CORE_IOPAD(0x34a8, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a26.mmc2_dat2 */
+ DRA7XX_CORE_IOPAD(0x34ac, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a27.mmc2_dat3 */
+ DRA7XX_CORE_IOPAD(0x348c, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a19.mmc2_dat4 */
+ DRA7XX_CORE_IOPAD(0x3490, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a20.mmc2_dat5 */
+ DRA7XX_CORE_IOPAD(0x3494, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a21.mmc2_dat6 */
+ DRA7XX_CORE_IOPAD(0x3498, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */
+ >;
+ };
+
+ mmc2_pins_ddr_3_3v_rev11: mmc2_pins_ddr_3_3v_rev11 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x349c, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a23.mmc2_clk */
+ DRA7XX_CORE_IOPAD(0x34b0, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_cs1.mmc2_cmd */
+ DRA7XX_CORE_IOPAD(0x34a0, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a24.mmc2_dat0 */
+ DRA7XX_CORE_IOPAD(0x34a4, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a25.mmc2_dat1 */
+ DRA7XX_CORE_IOPAD(0x34a8, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a26.mmc2_dat2 */
+ DRA7XX_CORE_IOPAD(0x34ac, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a27.mmc2_dat3 */
+ DRA7XX_CORE_IOPAD(0x348c, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a19.mmc2_dat4 */
+ DRA7XX_CORE_IOPAD(0x3490, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a20.mmc2_dat5 */
+ DRA7XX_CORE_IOPAD(0x3494, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a21.mmc2_dat6 */
+ DRA7XX_CORE_IOPAD(0x3498, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */
+ >;
+ };
+
+ mmc2_pins_ddr_1_8v_rev11: mmc2_pins_ddr_1_8v_rev11 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x349c, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a23.mmc2_clk */
+ DRA7XX_CORE_IOPAD(0x34b0, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_cs1.mmc2_cmd */
+ DRA7XX_CORE_IOPAD(0x34a0, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a24.mmc2_dat0 */
+ DRA7XX_CORE_IOPAD(0x34a4, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a25.mmc2_dat1 */
+ DRA7XX_CORE_IOPAD(0x34a8, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a26.mmc2_dat2 */
+ DRA7XX_CORE_IOPAD(0x34ac, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a27.mmc2_dat3 */
+ DRA7XX_CORE_IOPAD(0x348c, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a19.mmc2_dat4 */
+ DRA7XX_CORE_IOPAD(0x3490, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a20.mmc2_dat5 */
+ DRA7XX_CORE_IOPAD(0x3494, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a21.mmc2_dat6 */
+ DRA7XX_CORE_IOPAD(0x3498, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */
+ >;
+ };
+
+ mmc2_pins_ddr_rev20: mmc2_pins_ddr_rev20 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x349c, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a23.mmc2_clk */
+ DRA7XX_CORE_IOPAD(0x34b0, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_cs1.mmc2_cmd */
+ DRA7XX_CORE_IOPAD(0x34a0, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a24.mmc2_dat0 */
+ DRA7XX_CORE_IOPAD(0x34a4, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a25.mmc2_dat1 */
+ DRA7XX_CORE_IOPAD(0x34a8, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a26.mmc2_dat2 */
+ DRA7XX_CORE_IOPAD(0x34ac, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a27.mmc2_dat3 */
+ DRA7XX_CORE_IOPAD(0x348c, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a19.mmc2_dat4 */
+ DRA7XX_CORE_IOPAD(0x3490, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a20.mmc2_dat5 */
+ DRA7XX_CORE_IOPAD(0x3494, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a21.mmc2_dat6 */
+ DRA7XX_CORE_IOPAD(0x3498, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */
+ >;
+ };
+
+ mmc2_pins_hs200: mmc2_pins_hs200 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x349c, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a23.mmc2_clk */
+ DRA7XX_CORE_IOPAD(0x34b0, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_cs1.mmc2_cmd */
+ DRA7XX_CORE_IOPAD(0x34a0, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a24.mmc2_dat0 */
+ DRA7XX_CORE_IOPAD(0x34a4, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a25.mmc2_dat1 */
+ DRA7XX_CORE_IOPAD(0x34a8, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a26.mmc2_dat2 */
+ DRA7XX_CORE_IOPAD(0x34ac, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a27.mmc2_dat3 */
+ DRA7XX_CORE_IOPAD(0x348c, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a19.mmc2_dat4 */
+ DRA7XX_CORE_IOPAD(0x3490, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a20.mmc2_dat5 */
+ DRA7XX_CORE_IOPAD(0x3494, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a21.mmc2_dat6 */
+ DRA7XX_CORE_IOPAD(0x3498, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */
+ >;
+ };
+
+ mmc4_pins_default: mmc4_pins_default {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x37e8, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart1_ctsn.mmc4_clk */
+ DRA7XX_CORE_IOPAD(0x37ec, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart1_rtsn.mmc4_cmd */
+ DRA7XX_CORE_IOPAD(0x37f0, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart2_rxd.mmc4_dat0 */
+ DRA7XX_CORE_IOPAD(0x37f4, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart2_txd.mmc4_dat1 */
+ DRA7XX_CORE_IOPAD(0x37f8, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart2_ctsn.mmc4_dat2 */
+ DRA7XX_CORE_IOPAD(0x37fc, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart2_rtsn.mmc4_dat3 */
+ >;
+ };
+
+ mmc4_pins_hs: mmc4_pins_hs {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x37e8, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart1_ctsn.mmc4_clk */
+ DRA7XX_CORE_IOPAD(0x37ec, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart1_rtsn.mmc4_cmd */
+ DRA7XX_CORE_IOPAD(0x37f0, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart2_rxd.mmc4_dat0 */
+ DRA7XX_CORE_IOPAD(0x37f4, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart2_txd.mmc4_dat1 */
+ DRA7XX_CORE_IOPAD(0x37f8, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart2_ctsn.mmc4_dat2 */
+ DRA7XX_CORE_IOPAD(0x37fc, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart2_rtsn.mmc4_dat3 */
+ >;
+ };
+
+ mmc3_pins_default: mmc3_pins_default {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x377c, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_clk.mmc3_clk */
+ DRA7XX_CORE_IOPAD(0x3780, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_cmd.mmc3_cmd */
+ DRA7XX_CORE_IOPAD(0x3784, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_dat0.mmc3_dat0 */
+ DRA7XX_CORE_IOPAD(0x3788, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_dat1.mmc3_dat1 */
+ DRA7XX_CORE_IOPAD(0x378c, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_dat2.mmc3_dat2 */
+ DRA7XX_CORE_IOPAD(0x3790, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_dat3.mmc3_dat3 */
+ >;
+ };
+
+ mmc3_pins_hs: mmc3_pins_hs {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x377c, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_clk.mmc3_clk */
+ DRA7XX_CORE_IOPAD(0x3780, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_cmd.mmc3_cmd */
+ DRA7XX_CORE_IOPAD(0x3784, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_dat0.mmc3_dat0 */
+ DRA7XX_CORE_IOPAD(0x3788, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_dat1.mmc3_dat1 */
+ DRA7XX_CORE_IOPAD(0x378c, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_dat2.mmc3_dat2 */
+ DRA7XX_CORE_IOPAD(0x3790, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_dat3.mmc3_dat3 */
+ >;
+ };
+
+ mmc3_pins_sdr12: mmc3_pins_sdr12 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x377c, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_clk.mmc3_clk */
+ DRA7XX_CORE_IOPAD(0x3780, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_cmd.mmc3_cmd */
+ DRA7XX_CORE_IOPAD(0x3784, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_dat0.mmc3_dat0 */
+ DRA7XX_CORE_IOPAD(0x3788, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_dat1.mmc3_dat1 */
+ DRA7XX_CORE_IOPAD(0x378c, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_dat2.mmc3_dat2 */
+ DRA7XX_CORE_IOPAD(0x3790, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_dat3.mmc3_dat3 */
+ >;
+ };
+
+ mmc3_pins_sdr25: mmc3_pins_sdr25 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x377c, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_clk.mmc3_clk */
+ DRA7XX_CORE_IOPAD(0x3780, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_cmd.mmc3_cmd */
+ DRA7XX_CORE_IOPAD(0x3784, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_dat0.mmc3_dat0 */
+ DRA7XX_CORE_IOPAD(0x3788, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_dat1.mmc3_dat1 */
+ DRA7XX_CORE_IOPAD(0x378c, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_dat2.mmc3_dat2 */
+ DRA7XX_CORE_IOPAD(0x3790, (PIN_INPUT_PULLUP | MUX_MODE0)) /* mmc3_dat3.mmc3_dat3 */
+ >;
+ };
+
+ mmc3_pins_sdr50: mmc3_pins_sdr50 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x377c, (PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0)) /* mmc3_clk.mmc3_clk */
+ DRA7XX_CORE_IOPAD(0x3780, (PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0)) /* mmc3_cmd.mmc3_cmd */
+ DRA7XX_CORE_IOPAD(0x3784, (PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0)) /* mmc3_dat0.mmc3_dat0 */
+ DRA7XX_CORE_IOPAD(0x3788, (PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0)) /* mmc3_dat1.mmc3_dat1 */
+ DRA7XX_CORE_IOPAD(0x378c, (PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0)) /* mmc3_dat2.mmc3_dat2 */
+ DRA7XX_CORE_IOPAD(0x3790, (PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE0)) /* mmc3_dat3.mmc3_dat3 */
+ >;
+ };
+
+ mmc4_pins_sdr12: mmc4_pins_sdr12 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x37e8, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart1_ctsn.mmc4_clk */
+ DRA7XX_CORE_IOPAD(0x37ec, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart1_rtsn.mmc4_cmd */
+ DRA7XX_CORE_IOPAD(0x37f0, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart2_rxd.mmc4_dat0 */
+ DRA7XX_CORE_IOPAD(0x37f4, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart2_txd.mmc4_dat1 */
+ DRA7XX_CORE_IOPAD(0x37f8, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart2_ctsn.mmc4_dat2 */
+ DRA7XX_CORE_IOPAD(0x37fc, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart2_rtsn.mmc4_dat3 */
+ >;
+ };
+
+ mmc4_pins_sdr25: mmc4_pins_sdr25 {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x37e8, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart1_ctsn.mmc4_clk */
+ DRA7XX_CORE_IOPAD(0x37ec, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart1_rtsn.mmc4_cmd */
+ DRA7XX_CORE_IOPAD(0x37f0, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart2_rxd.mmc4_dat0 */
+ DRA7XX_CORE_IOPAD(0x37f4, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart2_txd.mmc4_dat1 */
+ DRA7XX_CORE_IOPAD(0x37f8, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart2_ctsn.mmc4_dat2 */
+ DRA7XX_CORE_IOPAD(0x37fc, PIN_INPUT_PULLUP | MODE_SELECT | MUX_MODE3) /* uart2_rtsn.mmc4_dat3 */
+ >;
+ };
+};
+
+&dra7_iodelay_core {
+
+ /* Corresponds to MMC1_DDR_MANUAL1 in datamanual */
+ mmc1_iodelay_ddr_rev11_conf: mmc1_iodelay_ddr_rev11_conf {
+ pinctrl-pin-array = <
+ 0x618 A_DELAY_PS(572) G_DELAY_PS(540) /* CFG_MMC1_CLK_IN */
+ 0x620 A_DELAY_PS(1525) G_DELAY_PS(0) /* CFG_MMC1_CLK_OUT */
+ 0x624 A_DELAY_PS(0) G_DELAY_PS(600) /* CFG_MMC1_CMD_IN */
+ 0x628 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_CMD_OEN */
+ 0x62c A_DELAY_PS(55) G_DELAY_PS(0) /* CFG_MMC1_CMD_OUT */
+ 0x630 A_DELAY_PS(403) G_DELAY_PS(120) /* CFG_MMC1_DAT0_IN */
+ 0x634 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT0_OEN */
+ 0x638 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT0_OUT */
+ 0x63c A_DELAY_PS(23) G_DELAY_PS(60) /* CFG_MMC1_DAT1_IN */
+ 0x640 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT1_OEN */
+ 0x644 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT1_OUT */
+ 0x648 A_DELAY_PS(25) G_DELAY_PS(60) /* CFG_MMC1_DAT2_IN */
+ 0x64c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT2_OEN */
+ 0x650 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT2_OUT */
+ 0x654 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT3_IN */
+ 0x658 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT3_OEN */
+ 0x65c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT3_OUT */
+ >;
+ };
+
+ /* Corresponds to MMC1_DDR_MANUAL1 in datamanual */
+ mmc1_iodelay_ddr_rev20_conf: mmc1_iodelay_ddr50_rev20_conf {
+ pinctrl-pin-array = <
+ 0x618 A_DELAY_PS(1076) G_DELAY_PS(330) /* CFG_MMC1_CLK_IN */
+ 0x620 A_DELAY_PS(1271) G_DELAY_PS(0) /* CFG_MMC1_CLK_OUT */
+ 0x624 A_DELAY_PS(722) G_DELAY_PS(0) /* CFG_MMC1_CMD_IN */
+ 0x628 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_CMD_OEN */
+ 0x62C A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_CMD_OUT */
+ 0x630 A_DELAY_PS(751) G_DELAY_PS(0) /* CFG_MMC1_DAT0_IN */
+ 0x634 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT0_OEN */
+ 0x638 A_DELAY_PS(20) G_DELAY_PS(0) /* CFG_MMC1_DAT0_OUT */
+ 0x63C A_DELAY_PS(256) G_DELAY_PS(0) /* CFG_MMC1_DAT1_IN */
+ 0x640 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT1_OEN */
+ 0x644 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT1_OUT */
+ 0x648 A_DELAY_PS(263) G_DELAY_PS(0) /* CFG_MMC1_DAT2_IN */
+ 0x64C A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT2_OEN */
+ 0x650 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT2_OUT */
+ 0x654 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT3_IN */
+ 0x658 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT3_OEN */
+ 0x65C A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT3_OUT */
+ >;
+ };
+
+ /* Corresponds to MMC1_SDR104_MANUAL1 in datamanual */
+ mmc1_iodelay_sdr104_rev11_conf: mmc1_iodelay_sdr104_rev11_conf {
+ pinctrl-pin-array = <
+ 0x620 A_DELAY_PS(1063) G_DELAY_PS(17) /* CFG_MMC1_CLK_OUT */
+ 0x628 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_CMD_OEN */
+ 0x62c A_DELAY_PS(23) G_DELAY_PS(0) /* CFG_MMC1_CMD_OUT */
+ 0x634 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT0_OEN */
+ 0x638 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT0_OUT */
+ 0x640 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT1_OEN */
+ 0x644 A_DELAY_PS(2) G_DELAY_PS(0) /* CFG_MMC1_DAT1_OUT */
+ 0x64c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT2_OEN */
+ 0x650 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT2_OUT */
+ 0x658 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT3_OEN */
+ 0x65c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT3_OUT */
+ >;
+ };
+
+ /* Corresponds to MMC1_SDR104_MANUAL1 in datamanual */
+ mmc1_iodelay_sdr104_rev20_conf: mmc1_iodelay_sdr104_rev20_conf {
+ pinctrl-pin-array = <
+ 0x620 A_DELAY_PS(600) G_DELAY_PS(400) /* CFG_MMC1_CLK_OUT */
+ 0x628 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_CMD_OEN */
+ 0x62c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_CMD_OUT */
+ 0x634 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT0_OEN */
+ 0x638 A_DELAY_PS(30) G_DELAY_PS(0) /* CFG_MMC1_DAT0_OUT */
+ 0x640 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT1_OEN */
+ 0x644 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT1_OUT */
+ 0x64c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT2_OEN */
+ 0x650 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT2_OUT */
+ 0x658 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT3_OEN */
+ 0x65c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC1_DAT3_OUT */
+ >;
+ };
+
+ /* Corresponds to MMC2_HS200_MANUAL1 in datamanual */
+ mmc2_iodelay_hs200_rev11_conf: mmc2_iodelay_hs200_rev11_conf {
+ pinctrl-pin-array = <
+ 0x190 A_DELAY_PS(621) G_DELAY_PS(600) /* CFG_GPMC_A19_OEN */
+ 0x194 A_DELAY_PS(300) G_DELAY_PS(0) /* CFG_GPMC_A19_OUT */
+ 0x1a8 A_DELAY_PS(739) G_DELAY_PS(600) /* CFG_GPMC_A20_OEN */
+ 0x1ac A_DELAY_PS(240) G_DELAY_PS(0) /* CFG_GPMC_A20_OUT */
+ 0x1b4 A_DELAY_PS(812) G_DELAY_PS(600) /* CFG_GPMC_A21_OEN */
+ 0x1b8 A_DELAY_PS(240) G_DELAY_PS(0) /* CFG_GPMC_A21_OUT */
+ 0x1c0 A_DELAY_PS(954) G_DELAY_PS(600) /* CFG_GPMC_A22_OEN */
+ 0x1c4 A_DELAY_PS(60) G_DELAY_PS(0) /* CFG_GPMC_A22_OUT */
+ 0x1d0 A_DELAY_PS(1340) G_DELAY_PS(420) /* CFG_GPMC_A23_OUT */
+ 0x1d8 A_DELAY_PS(935) G_DELAY_PS(600) /* CFG_GPMC_A24_OEN */
+ 0x1dc A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A24_OUT */
+ 0x1e4 A_DELAY_PS(525) G_DELAY_PS(600) /* CFG_GPMC_A25_OEN */
+ 0x1e8 A_DELAY_PS(120) G_DELAY_PS(0) /* CFG_GPMC_A25_OUT */
+ 0x1f0 A_DELAY_PS(767) G_DELAY_PS(600) /* CFG_GPMC_A26_OEN */
+ 0x1f4 A_DELAY_PS(225) G_DELAY_PS(0) /* CFG_GPMC_A26_OUT */
+ 0x1fc A_DELAY_PS(565) G_DELAY_PS(600) /* CFG_GPMC_A27_OEN */
+ 0x200 A_DELAY_PS(60) G_DELAY_PS(0) /* CFG_GPMC_A27_OUT */
+ 0x364 A_DELAY_PS(969) G_DELAY_PS(600) /* CFG_GPMC_CS1_OEN */
+ 0x368 A_DELAY_PS(180) G_DELAY_PS(0) /* CFG_GPMC_CS1_OUT */
+ >;
+ };
+
+ /* Corresponds to MMC2_HS200_MANUAL1 in datamanual */
+ mmc2_iodelay_hs200_rev20_conf: mmc2_iodelay_hs200_rev20_conf {
+ pinctrl-pin-array = <
+ 0x190 A_DELAY_PS(274) G_DELAY_PS(0) /* CFG_GPMC_A19_OEN */
+ 0x194 A_DELAY_PS(162) G_DELAY_PS(0) /* CFG_GPMC_A19_OUT */
+ 0x1a8 A_DELAY_PS(401) G_DELAY_PS(0) /* CFG_GPMC_A20_OEN */
+ 0x1ac A_DELAY_PS(73) G_DELAY_PS(0) /* CFG_GPMC_A20_OUT */
+ 0x1b4 A_DELAY_PS(465) G_DELAY_PS(0) /* CFG_GPMC_A21_OEN */
+ 0x1b8 A_DELAY_PS(115) G_DELAY_PS(0) /* CFG_GPMC_A21_OUT */
+ 0x1c0 A_DELAY_PS(633) G_DELAY_PS(0) /* CFG_GPMC_A22_OEN */
+ 0x1c4 A_DELAY_PS(47) G_DELAY_PS(0) /* CFG_GPMC_A22_OUT */
+ 0x1d0 A_DELAY_PS(935) G_DELAY_PS(280) /* CFG_GPMC_A23_OUT */
+ 0x1d8 A_DELAY_PS(621) G_DELAY_PS(0) /* CFG_GPMC_A24_OEN */
+ 0x1dc A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A24_OUT */
+ 0x1e4 A_DELAY_PS(183) G_DELAY_PS(0) /* CFG_GPMC_A25_OEN */
+ 0x1e8 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A25_OUT */
+ 0x1f0 A_DELAY_PS(467) G_DELAY_PS(0) /* CFG_GPMC_A26_OEN */
+ 0x1f4 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A26_OUT */
+ 0x1fc A_DELAY_PS(262) G_DELAY_PS(0) /* CFG_GPMC_A27_OEN */
+ 0x200 A_DELAY_PS(46) G_DELAY_PS(0) /* CFG_GPMC_A27_OUT */
+ 0x364 A_DELAY_PS(684) G_DELAY_PS(0) /* CFG_GPMC_CS1_OEN */
+ 0x368 A_DELAY_PS(76) G_DELAY_PS(0) /* CFG_GPMC_CS1_OUT */
+ >;
+ };
+
+ /* Correspnds to MMC2_DDR_3V3_MANUAL1 in datamanual */
+ mmc2_iodelay_ddr_3_3v_rev11_conf: mmc2_iodelay_ddr_3_3v_rev11_conf {
+ pinctrl-pin-array = <
+ 0x18c A_DELAY_PS(0) G_DELAY_PS(120) /* CFG_GPMC_A19_IN */
+ 0x190 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A19_OEN */
+ 0x194 A_DELAY_PS(174) G_DELAY_PS(0) /* CFG_GPMC_A19_OUT */
+ 0x1a4 A_DELAY_PS(265) G_DELAY_PS(360) /* CFG_GPMC_A20_IN */
+ 0x1a8 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A20_OEN */
+ 0x1ac A_DELAY_PS(168) G_DELAY_PS(0) /* CFG_GPMC_A20_OUT */
+ 0x1b0 A_DELAY_PS(0) G_DELAY_PS(120) /* CFG_GPMC_A21_IN */
+ 0x1b4 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A21_OEN */
+ 0x1b8 A_DELAY_PS(136) G_DELAY_PS(0) /* CFG_GPMC_A21_OUT */
+ 0x1bc A_DELAY_PS(0) G_DELAY_PS(120) /* CFG_GPMC_A22_IN */
+ 0x1c0 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A22_OEN */
+ 0x1c4 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A22_OUT */
+ 0x1c8 A_DELAY_PS(287) G_DELAY_PS(420) /* CFG_GPMC_A23_IN */
+ 0x1d0 A_DELAY_PS(879) G_DELAY_PS(0) /* CFG_GPMC_A23_OUT */
+ 0x1d4 A_DELAY_PS(144) G_DELAY_PS(240) /* CFG_GPMC_A24_IN */
+ 0x1d8 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A24_OEN */
+ 0x1dc A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A24_OUT */
+ 0x1e0 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A25_IN */
+ 0x1e4 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A25_OEN */
+ 0x1e8 A_DELAY_PS(34) G_DELAY_PS(0) /* CFG_GPMC_A25_OUT */
+ 0x1ec A_DELAY_PS(0) G_DELAY_PS(120) /* CFG_GPMC_A26_IN */
+ 0x1f0 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A26_OEN */
+ 0x1f4 A_DELAY_PS(120) G_DELAY_PS(0) /* CFG_GPMC_A26_OUT */
+ 0x1f8 A_DELAY_PS(120) G_DELAY_PS(180) /* CFG_GPMC_A27_IN */
+ 0x1fc A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A27_OEN */
+ 0x200 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A27_OUT */
+ 0x360 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_CS1_IN */
+ 0x364 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_CS1_OEN */
+ 0x368 A_DELAY_PS(11) G_DELAY_PS(0) /* CFG_GPMC_CS1_OUT */
+ >;
+ };
+
+ /* Corresponds to MMC2_DDR_1V8_MANUAL1 in datamanual */
+ mmc2_iodelay_ddr_1_8v_rev11_conf: mmc2_iodelay_ddr_1_8v_rev11_conf {
+ pinctrl-pin-array = <
+ 0x18c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A19_IN */
+ 0x190 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A19_OEN */
+ 0x194 A_DELAY_PS(174) G_DELAY_PS(0) /* CFG_GPMC_A19_OUT */
+ 0x1a4 A_DELAY_PS(274) G_DELAY_PS(240) /* CFG_GPMC_A20_IN */
+ 0x1a8 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A20_OEN */
+ 0x1ac A_DELAY_PS(168) G_DELAY_PS(0) /* CFG_GPMC_A20_OUT */
+ 0x1b0 A_DELAY_PS(0) G_DELAY_PS(60) /* CFG_GPMC_A21_IN */
+ 0x1b4 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A21_OEN */
+ 0x1b8 A_DELAY_PS(136) G_DELAY_PS(0) /* CFG_GPMC_A21_OUT */
+ 0x1bc A_DELAY_PS(0) G_DELAY_PS(60) /* CFG_GPMC_A22_IN */
+ 0x1c0 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A22_OEN */
+ 0x1c4 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A22_OUT */
+ 0x1c8 A_DELAY_PS(514) G_DELAY_PS(360) /* CFG_GPMC_A23_IN */
+ 0x1d0 A_DELAY_PS(879) G_DELAY_PS(0) /* CFG_GPMC_A23_OUT */
+ 0x1d4 A_DELAY_PS(187) G_DELAY_PS(120) /* CFG_GPMC_A24_IN */
+ 0x1d8 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A24_OEN */
+ 0x1dc A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A24_OUT */
+ 0x1e0 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A25_IN */
+ 0x1e4 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A25_OEN */
+ 0x1e8 A_DELAY_PS(34) G_DELAY_PS(0) /* CFG_GPMC_A25_OUT */
+ 0x1ec A_DELAY_PS(0) G_DELAY_PS(60) /* CFG_GPMC_A26_IN */
+ 0x1f0 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A26_OEN */
+ 0x1f4 A_DELAY_PS(120) G_DELAY_PS(0) /* CFG_GPMC_A26_OUT */
+ 0x1f8 A_DELAY_PS(121) G_DELAY_PS(60) /* CFG_GPMC_A27_IN */
+ 0x1fc A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A27_OEN */
+ 0x200 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_A27_OUT */
+ 0x360 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_CS1_IN */
+ 0x364 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_GPMC_CS1_OEN */
+ 0x368 A_DELAY_PS(11) G_DELAY_PS(0) /* CFG_GPMC_CS1_OUT */
+ >;
+ };
+
+ /* Corresponds to MMC3_MANUAL1 in datamanual */
+ mmc3_iodelay_manual1_rev20_conf: mmc3_iodelay_manual1_conf {
+ pinctrl-pin-array = <
+ 0x678 A_DELAY_PS(0) G_DELAY_PS(386) /* CFG_MMC3_CLK_IN */
+ 0x680 A_DELAY_PS(605) G_DELAY_PS(0) /* CFG_MMC3_CLK_OUT */
+ 0x684 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_CMD_IN */
+ 0x688 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_CMD_OEN */
+ 0x68c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_CMD_OUT */
+ 0x690 A_DELAY_PS(171) G_DELAY_PS(0) /* CFG_MMC3_DAT0_IN */
+ 0x694 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_DAT0_OEN */
+ 0x698 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_DAT0_OUT */
+ 0x69c A_DELAY_PS(221) G_DELAY_PS(0) /* CFG_MMC3_DAT1_IN */
+ 0x6a0 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_DAT1_OEN */
+ 0x6a4 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_DAT1_OUT */
+ 0x6a8 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_DAT2_IN */
+ 0x6ac A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_DAT2_OEN */
+ 0x6b0 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_DAT2_OUT */
+ 0x6b4 A_DELAY_PS(474) G_DELAY_PS(0) /* CFG_MMC3_DAT3_IN */
+ 0x6b8 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_DAT3_OEN */
+ 0x6bc A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_DAT3_OUT */
+ >;
+ };
+
+ /* Corresponds to MMC3_MANUAL1 in datamanual */
+ mmc3_iodelay_manual1_rev11_conf: mmc3_iodelay_manual1_conf {
+ pinctrl-pin-array = <
+ 0x678 A_DELAY_PS(406) G_DELAY_PS(0) /* CFG_MMC3_CLK_IN */
+ 0x680 A_DELAY_PS(659) G_DELAY_PS(0) /* CFG_MMC3_CLK_OUT */
+ 0x684 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_CMD_IN */
+ 0x688 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_CMD_OEN */
+ 0x68c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_CMD_OUT */
+ 0x690 A_DELAY_PS(130) G_DELAY_PS(0) /* CFG_MMC3_DAT0_IN */
+ 0x694 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_DAT0_OEN */
+ 0x698 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_DAT0_OUT */
+ 0x69c A_DELAY_PS(169) G_DELAY_PS(0) /* CFG_MMC3_DAT1_IN */
+ 0x6a0 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_DAT1_OEN */
+ 0x6a4 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_DAT1_OUT */
+ 0x6a8 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_DAT2_IN */
+ 0x6ac A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_DAT2_OEN */
+ 0x6b0 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_DAT2_OUT */
+ 0x6b4 A_DELAY_PS(457) G_DELAY_PS(0) /* CFG_MMC3_DAT3_IN */
+ 0x6b8 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_DAT3_OEN */
+ 0x6bc A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_MMC3_DAT3_OUT */
+ >;
+ };
+
+ /* Corresponds to MMC4_DS_MANUAL1 in datamanual */
+ mmc4_iodelay_ds_rev11_conf: mmc4_iodelay_ds_rev11_conf {
+ pinctrl-pin-array = <
+ 0x840 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART1_CTSN_IN */
+ 0x848 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART1_CTSN_OUT */
+ 0x84c A_DELAY_PS(96) G_DELAY_PS(0) /* CFG_UART1_RTSN_IN */
+ 0x850 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART1_RTSN_OEN */
+ 0x854 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART1_RTSN_OUT */
+ 0x870 A_DELAY_PS(582) G_DELAY_PS(0) /* CFG_UART2_CTSN_IN */
+ 0x874 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_CTSN_OEN */
+ 0x878 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_CTSN_OUT */
+ 0x87c A_DELAY_PS(391) G_DELAY_PS(0) /* CFG_UART2_RTSN_IN */
+ 0x880 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RTSN_OEN */
+ 0x884 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RTSN_OUT */
+ 0x888 A_DELAY_PS(561) G_DELAY_PS(0) /* CFG_UART2_RXD_IN */
+ 0x88c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RXD_OEN */
+ 0x890 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RXD_OUT */
+ 0x894 A_DELAY_PS(588) G_DELAY_PS(0) /* CFG_UART2_TXD_IN */
+ 0x898 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_TXD_OEN */
+ 0x89c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_TXD_OUT */
+ >;
+ };
+
+ /* Corresponds to MMC4_DS_MANUAL1 in datamanual */
+ mmc4_iodelay_ds_rev20_conf: mmc4_iodelay_ds_rev20_conf {
+ pinctrl-pin-array = <
+ 0x840 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART1_CTSN_IN */
+ 0x848 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART1_CTSN_OUT */
+ 0x84c A_DELAY_PS(307) G_DELAY_PS(0) /* CFG_UART1_RTSN_IN */
+ 0x850 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART1_RTSN_OEN */
+ 0x854 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART1_RTSN_OUT */
+ 0x870 A_DELAY_PS(785) G_DELAY_PS(0) /* CFG_UART2_CTSN_IN */
+ 0x874 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_CTSN_OEN */
+ 0x878 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_CTSN_OUT */
+ 0x87c A_DELAY_PS(613) G_DELAY_PS(0) /* CFG_UART2_RTSN_IN */
+ 0x880 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RTSN_OEN */
+ 0x884 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RTSN_OUT */
+ 0x888 A_DELAY_PS(683) G_DELAY_PS(0) /* CFG_UART2_RXD_IN */
+ 0x88c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RXD_OEN */
+ 0x890 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RXD_OUT */
+ 0x894 A_DELAY_PS(835) G_DELAY_PS(0) /* CFG_UART2_TXD_IN */
+ 0x898 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_TXD_OEN */
+ 0x89c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_TXD_OUT */
+ >;
+ };
+
+ /* Corresponds to MMC4_MANUAL1 in datamanual */
+ mmc4_iodelay_sdr12_hs_sdr25_rev11_conf: mmc4_iodelay_sdr12_hs_sdr25_rev11_conf {
+ pinctrl-pin-array = <
+ 0x840 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART1_CTSN_IN */
+ 0x848 A_DELAY_PS(2651) G_DELAY_PS(0) /* CFG_UART1_CTSN_OUT */
+ 0x84c A_DELAY_PS(1572) G_DELAY_PS(0) /* CFG_UART1_RTSN_IN */
+ 0x850 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART1_RTSN_OEN */
+ 0x854 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART1_RTSN_OUT */
+ 0x870 A_DELAY_PS(1913) G_DELAY_PS(0) /* CFG_UART2_CTSN_IN */
+ 0x874 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_CTSN_OEN */
+ 0x878 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_CTSN_OUT */
+ 0x87c A_DELAY_PS(1721) G_DELAY_PS(0) /* CFG_UART2_RTSN_IN */
+ 0x880 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RTSN_OEN */
+ 0x884 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RTSN_OUT */
+ 0x888 A_DELAY_PS(1891) G_DELAY_PS(0) /* CFG_UART2_RXD_IN */
+ 0x88c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RXD_OEN */
+ 0x890 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RXD_OUT */
+ 0x894 A_DELAY_PS(1919) G_DELAY_PS(0) /* CFG_UART2_TXD_IN */
+ 0x898 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_TXD_OEN */
+ 0x89c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_TXD_OUT */
+ >;
+ };
+
+ /* Corresponds to MMC4_MANUAL1 in datamanual */
+ mmc4_iodelay_sdr12_hs_sdr25_rev20_conf: mmc4_iodelay_sdr12_hs_sdr25_rev20_conf {
+ pinctrl-pin-array = <
+ 0x840 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART1_CTSN_IN */
+ 0x848 A_DELAY_PS(1147) G_DELAY_PS(0) /* CFG_UART1_CTSN_OUT */
+ 0x84c A_DELAY_PS(1834) G_DELAY_PS(0) /* CFG_UART1_RTSN_IN */
+ 0x850 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART1_RTSN_OEN */
+ 0x854 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART1_RTSN_OUT */
+ 0x870 A_DELAY_PS(2165) G_DELAY_PS(0) /* CFG_UART2_CTSN_IN */
+ 0x874 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_CTSN_OEN */
+ 0x878 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_CTSN_OUT */
+ 0x87c A_DELAY_PS(1929) G_DELAY_PS(64) /* CFG_UART2_RTSN_IN */
+ 0x880 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RTSN_OEN */
+ 0x884 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RTSN_OUT */
+ 0x888 A_DELAY_PS(1935) G_DELAY_PS(128) /* CFG_UART2_RXD_IN */
+ 0x88c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RXD_OEN */
+ 0x890 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RXD_OUT */
+ 0x894 A_DELAY_PS(2172) G_DELAY_PS(44) /* CFG_UART2_TXD_IN */
+ 0x898 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_TXD_OEN */
+ 0x89c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_TXD_OUT */
+ >;
+ };
+};
diff --git a/arch/arm/boot/dts/dra76-evm.dts b/arch/arm/boot/dts/dra76-evm.dts
new file mode 100644
index 000000000000..b024a65c6e27
--- /dev/null
+++ b/arch/arm/boot/dts/dra76-evm.dts
@@ -0,0 +1,423 @@
+/*
+ * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+/dts-v1/;
+
+#include "dra76x.dtsi"
+#include "dra7-evm-common.dtsi"
+#include <dt-bindings/net/ti-dp83867.h>
+
+/ {
+ model = "TI DRA762 EVM";
+ compatible = "ti,dra76-evm", "ti,dra762", "ti,dra7";
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x80000000 0x0 0x80000000>;
+ };
+
+ vsys_12v0: fixedregulator-vsys12v0 {
+ /* main supply */
+ compatible = "regulator-fixed";
+ regulator-name = "vsys_12v0";
+ regulator-min-microvolt = <12000000>;
+ regulator-max-microvolt = <12000000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vsys_5v0: fixedregulator-vsys5v0 {
+ /* Output of Cntlr B of TPS43351-Q1 on dra76-evm */
+ compatible = "regulator-fixed";
+ regulator-name = "vsys_5v0";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ vin-supply = <&vsys_12v0>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vsys_3v3: fixedregulator-vsys3v3 {
+ /* Output of Cntlr A of TPS43351-Q1 on dra76-evm */
+ compatible = "regulator-fixed";
+ regulator-name = "vsys_3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ vin-supply = <&vsys_12v0>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vio_3v3: fixedregulator-vio_3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "vio_3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ vin-supply = <&vsys_3v3>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vio_3v3_sd: fixedregulator-sd {
+ compatible = "regulator-fixed";
+ regulator-name = "vio_3v3_sd";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ vin-supply = <&vio_3v3>;
+ enable-active-high;
+ gpio = <&gpio4 21 GPIO_ACTIVE_HIGH>;
+ };
+
+ vio_1v8: fixedregulator-vio_1v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "vio_1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ vin-supply = <&smps5_reg>;
+ };
+
+ vtt_fixed: fixedregulator-vtt {
+ compatible = "regulator-fixed";
+ regulator-name = "vtt_fixed";
+ regulator-min-microvolt = <1350000>;
+ regulator-max-microvolt = <1350000>;
+ vin-supply = <&vsys_3v3>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ aic_dvdd: fixedregulator-aic_dvdd {
+ /* TPS77018DBVT */
+ compatible = "regulator-fixed";
+ regulator-name = "aic_dvdd";
+ vin-supply = <&vio_3v3>;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+};
+
+&dra7_pmx_core {
+ mmc1_pins_default: mmc1_pins_default {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x376c, PIN_INPUT | MUX_MODE14) /* mmc1sdcd.gpio219 */
+ DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_clk.clk */
+ DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_cmd.cmd */
+ DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat0.dat0 */
+ DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat1.dat1 */
+ DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat2.dat2 */
+ DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat3.dat3 */
+ >;
+ };
+
+ mmc1_pins_sdr12: pinmux_mmc1_sdr12_pins {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x3754, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_clk.clk */
+ DRA7XX_CORE_IOPAD(0x3758, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_cmd.cmd */
+ DRA7XX_CORE_IOPAD(0x375c, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat0.dat0 */
+ DRA7XX_CORE_IOPAD(0x3760, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat1.dat1 */
+ DRA7XX_CORE_IOPAD(0x3764, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat2.dat2 */
+ DRA7XX_CORE_IOPAD(0x3768, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc1_dat3.dat3 */
+ >;
+ };
+
+ mmc2_pins_default: mmc2_pins_default {
+ pinctrl-single,pins = <
+ DRA7XX_CORE_IOPAD(0x349c, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a23.mmc2_clk */
+ DRA7XX_CORE_IOPAD(0x34b0, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_cs1.mmc2_cmd */
+ DRA7XX_CORE_IOPAD(0x34a0, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a24.mmc2_dat0 */
+ DRA7XX_CORE_IOPAD(0x34a4, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a25.mmc2_dat1 */
+ DRA7XX_CORE_IOPAD(0x34a8, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a26.mmc2_dat2 */
+ DRA7XX_CORE_IOPAD(0x34ac, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a27.mmc2_dat3 */
+ DRA7XX_CORE_IOPAD(0x348c, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a19.mmc2_dat4 */
+ DRA7XX_CORE_IOPAD(0x3490, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a20.mmc2_dat5 */
+ DRA7XX_CORE_IOPAD(0x3494, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a21.mmc2_dat6 */
+ DRA7XX_CORE_IOPAD(0x3498, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */
+ >;
+ };
+};
+
+&i2c1 {
+ status = "okay";
+ clock-frequency = <400000>;
+
+ tps65917: tps65917@58 {
+ compatible = "ti,tps65917";
+ reg = <0x58>;
+ ti,system-power-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ tps65917_pmic {
+ compatible = "ti,tps65917-pmic";
+
+ smps12-in-supply = <&vsys_3v3>;
+ smps3-in-supply = <&vsys_3v3>;
+ smps4-in-supply = <&vsys_3v3>;
+ smps5-in-supply = <&vsys_3v3>;
+ ldo1-in-supply = <&vsys_3v3>;
+ ldo2-in-supply = <&vsys_3v3>;
+ ldo3-in-supply = <&vsys_5v0>;
+ ldo4-in-supply = <&vsys_5v0>;
+ ldo5-in-supply = <&vsys_3v3>;
+
+ tps65917_regulators: regulators {
+ smps12_reg: smps12 {
+ /* VDD_DSPEVE */
+ regulator-name = "smps12";
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <1250000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ smps3_reg: smps3 {
+ /* VDD_CORE */
+ regulator-name = "smps3";
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <1250000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ smps4_reg: smps4 {
+ /* VDD_IVA */
+ regulator-name = "smps4";
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <1250000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ smps5_reg: smps5 {
+ /* VDDS1V8 */
+ regulator-name = "smps5";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo1_reg: ldo1 {
+ /* LDO1_OUT --> VDA_PHY1_1V8 */
+ regulator-name = "ldo1";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-allow-bypass;
+ };
+
+ ldo2_reg: ldo2 {
+ /* LDO2_OUT --> VDA_PHY2_1V8 */
+ regulator-name = "ldo2";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-allow-bypass;
+ regulator-always-on;
+ };
+
+ ldo3_reg: ldo3 {
+ /* VDA_USB_3V3 */
+ regulator-name = "ldo3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo5_reg: ldo5 {
+ /* VDDA_1V8_PLL */
+ regulator-name = "ldo5";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ ldo4_reg: ldo4 {
+ /* VDD_SDIO_DV */
+ regulator-name = "ldo4";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+ };
+ };
+
+ tps65917_power_button {
+ compatible = "ti,palmas-pwrbutton";
+ interrupt-parent = <&tps65917>;
+ interrupts = <1 IRQ_TYPE_NONE>;
+ wakeup-source;
+ ti,palmas-long-press-seconds = <6>;
+ };
+ };
+
+ lp87565: lp87565@60 {
+ compatible = "ti,lp87565-q1";
+ reg = <0x60>;
+
+ buck10-in-supply =<&vsys_3v3>;
+ buck23-in-supply =<&vsys_3v3>;
+
+ regulators: regulators {
+ buck10_reg: buck10 {
+ /*VDD_MPU*/
+ regulator-name = "buck10";
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <1250000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ buck23_reg: buck23 {
+ /* VDD_GPU*/
+ regulator-name = "buck23";
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <1250000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+ };
+ };
+
+ pcf_lcd: pcf8757@20 {
+ compatible = "ti,pcf8575", "nxp,pcf8575";
+ reg = <0x20>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
+ };
+
+ pcf_gpio_21: pcf8757@21 {
+ compatible = "ti,pcf8575", "nxp,pcf8575";
+ reg = <0x21>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pcf_hdmi: pcf8575@26 {
+ compatible = "ti,pcf8575", "nxp,pcf8575";
+ reg = <0x26>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ p1 {
+ /* vin6_sel_s0: high: VIN6, low: audio */
+ gpio-hog;
+ gpios = <1 GPIO_ACTIVE_HIGH>;
+ output-low;
+ line-name = "vin6_sel_s0";
+ };
+ };
+
+ tlv320aic3106: tlv320aic3106@19 {
+ #sound-dai-cells = <0>;
+ compatible = "ti,tlv320aic3106";
+ reg = <0x19>;
+ adc-settle-ms = <40>;
+ ai3x-micbias-vg = <1>; /* 2.0V */
+ status = "okay";
+
+ /* Regulators */
+ AVDD-supply = <&vio_3v3>;
+ IOVDD-supply = <&vio_3v3>;
+ DRVDD-supply = <&vio_3v3>;
+ DVDD-supply = <&aic_dvdd>;
+ };
+};
+
+&cpu0 {
+ vdd-supply = <&buck10_reg>;
+};
+
+&mmc1 {
+ status = "okay";
+ vmmc-supply = <&vio_3v3_sd>;
+ vmmc_aux-supply = <&ldo4_reg>;
+ bus-width = <4>;
+ /*
+ * SDCD signal is not being used here - using the fact that GPIO mode
+ * is always hardwired.
+ */
+ cd-gpios = <&gpio6 27 GPIO_ACTIVE_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc1_pins_default>;
+};
+
+&mmc2 {
+ status = "okay";
+ vmmc-supply = <&vio_1v8>;
+ bus-width = <8>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc2_pins_default>;
+};
+
+/* No RTC on this device */
+&rtc {
+ status = "disabled";
+};
+
+&mac {
+ status = "okay";
+
+ dual_emac;
+};
+
+&cpsw_emac0 {
+ phy_id = <&davinci_mdio>, <2>;
+ phy-mode = "rgmii-id";
+ dual_emac_res_vlan = <1>;
+};
+
+&cpsw_emac1 {
+ phy_id = <&davinci_mdio>, <3>;
+ phy-mode = "rgmii-id";
+ dual_emac_res_vlan = <2>;
+};
+
+&davinci_mdio {
+ dp83867_0: ethernet-phy@2 {
+ reg = <2>;
+ ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
+ ti,tx-internal-delay = <DP83867_RGMIIDCTL_250_PS>;
+ ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
+ ti,min-output-impedance;
+ ti,dp83867-rxctrl-strap-quirk;
+ };
+
+ dp83867_1: ethernet-phy@3 {
+ reg = <3>;
+ ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
+ ti,tx-internal-delay = <DP83867_RGMIIDCTL_250_PS>;
+ ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
+ ti,min-output-impedance;
+ ti,dp83867-rxctrl-strap-quirk;
+ };
+};
+
+&usb2_phy1 {
+ phy-supply = <&ldo3_reg>;
+};
+
+&usb2_phy2 {
+ phy-supply = <&ldo3_reg>;
+};
+
+&qspi {
+ spi-max-frequency = <96000000>;
+ m25p80@0 {
+ spi-max-frequency = <96000000>;
+ };
+};
diff --git a/arch/arm/boot/dts/dra76x.dtsi b/arch/arm/boot/dts/dra76x.dtsi
new file mode 100644
index 000000000000..1c88c581ff18
--- /dev/null
+++ b/arch/arm/boot/dts/dra76x.dtsi
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "dra74x.dtsi"
+
+/ {
+ compatible = "ti,dra762", "ti,dra7";
+
+};
+
+/* MCAN interrupts are hard-wired to irqs 67, 68 */
+&crossbar_mpu {
+ ti,irqs-skip = <10 67 68 133 139 140>;
+};
diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi
index 3330738e4c6e..e62b62875cba 100644
--- a/arch/arm/boot/dts/dra7xx-clocks.dtsi
+++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi
@@ -338,6 +338,8 @@
compatible = "ti,omap4-dpll-clock";
clocks = <&sys_clkin1>, <&dpll_dsp_byp_mux>;
reg = <0x0234>, <0x0238>, <0x0240>, <0x023c>;
+ assigned-clocks = <&dpll_dsp_ck>;
+ assigned-clock-rates = <600000000>;
};
dpll_dsp_m2_ck: dpll_dsp_m2_ck@244 {
@@ -349,6 +351,8 @@
reg = <0x0244>;
ti,index-starts-at-one;
ti,invert-autoidle-bit;
+ assigned-clocks = <&dpll_dsp_m2_ck>;
+ assigned-clock-rates = <600000000>;
};
iva_dpll_hs_clk_div: iva_dpll_hs_clk_div {
@@ -372,6 +376,8 @@
compatible = "ti,omap4-dpll-clock";
clocks = <&sys_clkin1>, <&dpll_iva_byp_mux>;
reg = <0x01a0>, <0x01a4>, <0x01ac>, <0x01a8>;
+ assigned-clocks = <&dpll_iva_ck>;
+ assigned-clock-rates = <1165000000>;
};
dpll_iva_m2_ck: dpll_iva_m2_ck@1b0 {
@@ -383,6 +389,8 @@
reg = <0x01b0>;
ti,index-starts-at-one;
ti,invert-autoidle-bit;
+ assigned-clocks = <&dpll_iva_m2_ck>;
+ assigned-clock-rates = <388333334>;
};
iva_dclk: iva_dclk {
@@ -406,6 +414,8 @@
compatible = "ti,omap4-dpll-clock";
clocks = <&sys_clkin1>, <&dpll_gpu_byp_mux>;
reg = <0x02d8>, <0x02dc>, <0x02e4>, <0x02e0>;
+ assigned-clocks = <&dpll_gpu_ck>;
+ assigned-clock-rates = <1277000000>;
};
dpll_gpu_m2_ck: dpll_gpu_m2_ck@2e8 {
@@ -417,6 +427,8 @@
reg = <0x02e8>;
ti,index-starts-at-one;
ti,invert-autoidle-bit;
+ assigned-clocks = <&dpll_gpu_m2_ck>;
+ assigned-clock-rates = <425666667>;
};
dpll_core_m2_ck: dpll_core_m2_ck@130 {
@@ -659,6 +671,8 @@
reg = <0x0248>;
ti,index-starts-at-one;
ti,invert-autoidle-bit;
+ assigned-clocks = <&dpll_dsp_m3x2_ck>;
+ assigned-clock-rates = <400000000>;
};
dpll_gmac_x2_ck: dpll_gmac_x2_ck {
@@ -791,6 +805,8 @@
clocks = <&dpll_abe_m2x2_ck>, <&dpll_core_h22x2_ck>;
ti,bit-shift = <24>;
reg = <0x0520>;
+ assigned-clocks = <&ipu1_gfclk_mux>;
+ assigned-clock-parents = <&dpll_core_h22x2_ck>;
};
mcasp1_ahclkr_mux: mcasp1_ahclkr_mux@550 {
@@ -1748,6 +1764,8 @@
clocks = <&dpll_core_h14x2_ck>, <&dpll_per_h14x2_ck>, <&dpll_gpu_m2_ck>;
ti,bit-shift = <24>;
reg = <0x1220>;
+ assigned-clocks = <&gpu_core_gclk_mux>;
+ assigned-clock-parents = <&dpll_gpu_m2_ck>;
};
gpu_hyd_gclk_mux: gpu_hyd_gclk_mux@1220 {
@@ -1756,6 +1774,8 @@
clocks = <&dpll_core_h14x2_ck>, <&dpll_per_h14x2_ck>, <&dpll_gpu_m2_ck>;
ti,bit-shift = <26>;
reg = <0x1220>;
+ assigned-clocks = <&gpu_hyd_gclk_mux>;
+ assigned-clock-parents = <&dpll_gpu_m2_ck>;
};
l3instr_ts_gclk_div: l3instr_ts_gclk_div@e50 {
@@ -1797,6 +1817,8 @@
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <24>;
reg = <0x1868>;
+ assigned-clocks = <&mcasp3_ahclkx_mux>;
+ assigned-clock-parents = <&abe_24m_fclk>;
};
mcasp3_aux_gfclk_mux: mcasp3_aux_gfclk_mux@1868 {
diff --git a/arch/arm/boot/dts/emev2.dtsi b/arch/arm/boot/dts/emev2.dtsi
index 0124faf175c8..42ea246e71cb 100644
--- a/arch/arm/boot/dts/emev2.dtsi
+++ b/arch/arm/boot/dts/emev2.dtsi
@@ -197,7 +197,7 @@
clock-names = "sclk";
};
- pfc: pfc@e0140200 {
+ pfc: pin-controller@e0140200 {
compatible = "renesas,pfc-emev2";
reg = <0xe0140200 0x100>;
};
diff --git a/arch/arm/boot/dts/ethernut5.dts b/arch/arm/boot/dts/ethernut5.dts
index 4687229a3ab9..123b203be06c 100644
--- a/arch/arm/boot/dts/ethernut5.dts
+++ b/arch/arm/boot/dts/ethernut5.dts
@@ -55,25 +55,38 @@
};
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "soft";
- nand-on-flash-bbt;
+ ebi: ebi@10000000 {
status = "okay";
- gpios = <0
- &pioC 14 GPIO_ACTIVE_HIGH
- 0
- >;
-
- root@0 {
- label = "root";
- reg = <0x0 0x08000000>;
- };
-
- data@20000 {
- label = "data";
- reg = <0x08000000 0x38000000>;
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_cs>;
+ pinctrl-names = "default";
+
+ nand: nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ cs-gpios = <&pioC 14 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "soft";
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ root@0 {
+ label = "root";
+ reg = <0x0 0x08000000>;
+ };
+
+ data@20000 {
+ label = "data";
+ reg = <0x08000000 0x38000000>;
+ };
+ };
+ };
};
};
diff --git a/arch/arm/boot/dts/exynos3250-artik5-eval.dts b/arch/arm/boot/dts/exynos3250-artik5-eval.dts
index 4bd2ee87124e..4cbfa09c6c4e 100644
--- a/arch/arm/boot/dts/exynos3250-artik5-eval.dts
+++ b/arch/arm/boot/dts/exynos3250-artik5-eval.dts
@@ -22,7 +22,6 @@
};
&mshc_2 {
- num-slots = <1>;
cap-sd-highspeed;
disable-wp;
vqmmc-supply = <&ldo3_reg>;
diff --git a/arch/arm/boot/dts/exynos3250-artik5.dtsi b/arch/arm/boot/dts/exynos3250-artik5.dtsi
index 59c89d7662a8..639c2e605f3c 100644
--- a/arch/arm/boot/dts/exynos3250-artik5.dtsi
+++ b/arch/arm/boot/dts/exynos3250-artik5.dtsi
@@ -304,7 +304,6 @@
};
&mshc_0 {
- num-slots = <1>;
non-removable;
cap-mmc-highspeed;
card-detect-delay = <200>;
diff --git a/arch/arm/boot/dts/exynos3250-monk.dts b/arch/arm/boot/dts/exynos3250-monk.dts
index cccfe4b791d1..bbdfcbc6e7d2 100644
--- a/arch/arm/boot/dts/exynos3250-monk.dts
+++ b/arch/arm/boot/dts/exynos3250-monk.dts
@@ -67,7 +67,7 @@
max77836: subpmic@25 {
compatible = "maxim,max77836";
interrupt-parent = <&gpx1>;
- interrupts = <5 0>;
+ interrupts = <5 IRQ_TYPE_NONE>;
reg = <0x25>;
wakeup-source;
@@ -191,7 +191,7 @@
s2mps14_pmic@66 {
compatible = "samsung,s2mps14-pmic";
interrupt-parent = <&gpx0>;
- interrupts = <7 0>;
+ interrupts = <7 IRQ_TYPE_NONE>;
reg = <0x66>;
wakeup-source;
@@ -414,7 +414,7 @@
fuelgauge@36 {
compatible = "maxim,max77836-battery";
interrupt-parent = <&gpx1>;
- interrupts = <2 8>;
+ interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
reg = <0x36>;
};
};
@@ -426,7 +426,6 @@
&mshc_0 {
#address-cells = <1>;
#size-cells = <0>;
- num-slots = <1>;
broken-cd;
non-removable;
cap-mmc-highspeed;
diff --git a/arch/arm/boot/dts/exynos3250-rinato.dts b/arch/arm/boot/dts/exynos3250-rinato.dts
index c9f191ca7b9c..0b45467d77a8 100644
--- a/arch/arm/boot/dts/exynos3250-rinato.dts
+++ b/arch/arm/boot/dts/exynos3250-rinato.dts
@@ -58,7 +58,7 @@
max77836: subpmic@25 {
compatible = "maxim,max77836";
interrupt-parent = <&gpx1>;
- interrupts = <5 0>;
+ interrupts = <5 IRQ_TYPE_NONE>;
reg = <0x25>;
wakeup-source;
@@ -220,27 +220,12 @@
samsung,pll-clock-frequency = <24000000>;
status = "okay";
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@1 {
- reg = <1>;
-
- dsi_out: endpoint {
- remote-endpoint = <&dsi_in>;
- samsung,burst-clock-frequency = <250000000>;
- samsung,esc-clock-frequency = <20000000>;
- };
- };
- };
-
panel@0 {
compatible = "samsung,s6e63j0x03";
reg = <0>;
vdd3-supply = <&ldo16_reg>;
vci-supply = <&ldo20_reg>;
- reset-gpios = <&gpe0 1 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpe0 1 GPIO_ACTIVE_LOW>;
te-gpios = <&gpx0 6 GPIO_ACTIVE_HIGH>;
power-on-delay= <30>;
power-off-delay= <120>;
@@ -264,12 +249,6 @@
vsync-len = <2>;
};
};
-
- port {
- dsi_in: endpoint {
- remote-endpoint = <&dsi_out>;
- };
- };
};
};
@@ -295,7 +274,7 @@
s2mps14_pmic@66 {
compatible = "samsung,s2mps14-pmic";
interrupt-parent = <&gpx0>;
- interrupts = <7 0>;
+ interrupts = <7 IRQ_TYPE_NONE>;
reg = <0x66>;
wakeup-source;
@@ -626,7 +605,7 @@
fuelgauge@36 {
compatible = "maxim,max77836-battery";
interrupt-parent = <&gpx1>;
- interrupts = <2 8>;
+ interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
reg = <0x36>;
};
};
@@ -642,7 +621,6 @@
&mshc_0 {
#address-cells = <1>;
#size-cells = <0>;
- num-slots = <1>;
broken-cd;
non-removable;
cap-mmc-highspeed;
diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
index 497a9470c888..5739389f5bb8 100644
--- a/arch/arm/boot/dts/exynos4.dtsi
+++ b/arch/arm/boot/dts/exynos4.dtsi
@@ -59,6 +59,9 @@
compatible = "samsung,exynos4210-audss-clock";
reg = <0x03810000 0x0C>;
#clock-cells = <1>;
+ clocks = <&clock CLK_FIN_PLL>, <&clock CLK_FOUT_EPLL>,
+ <&clock CLK_SCLK_AUDIO0>, <&clock CLK_SCLK_AUDIO0>;
+ clock-names = "pll_ref", "pll_in", "sclk_audio", "sclk_pcm_in";
};
i2s0: i2s@03830000 {
diff --git a/arch/arm/boot/dts/exynos4210-origen.dts b/arch/arm/boot/dts/exynos4210-origen.dts
index 312650e2450f..084fcc5574ef 100644
--- a/arch/arm/boot/dts/exynos4210-origen.dts
+++ b/arch/arm/boot/dts/exynos4210-origen.dts
@@ -151,7 +151,7 @@
compatible = "maxim,max8997-pmic";
reg = <0x66>;
interrupt-parent = <&gpx0>;
- interrupts = <4 0>, <3 0>;
+ interrupts = <4 IRQ_TYPE_NONE>, <3 IRQ_TYPE_NONE>;
max8997,pmic-buck1-dvs-voltage = <1350000>;
max8997,pmic-buck2-dvs-voltage = <1100000>;
diff --git a/arch/arm/boot/dts/exynos4210-trats.dts b/arch/arm/boot/dts/exynos4210-trats.dts
index 1743ca850070..7b6ab7265110 100644
--- a/arch/arm/boot/dts/exynos4210-trats.dts
+++ b/arch/arm/boot/dts/exynos4210-trats.dts
@@ -202,21 +202,6 @@
samsung,pll-clock-frequency = <24000000>;
status = "okay";
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@1 {
- reg = <1>;
-
- dsi_out: endpoint {
- remote-endpoint = <&dsi_in>;
- samsung,burst-clock-frequency = <500000000>;
- samsung,esc-clock-frequency = <20000000>;
- };
- };
- };
-
panel@0 {
reg = <0>;
compatible = "samsung,s6e8aa0";
@@ -244,12 +229,6 @@
vsync-len = <2>;
};
};
-
- port {
- dsi_in: endpoint {
- remote-endpoint = <&dsi_out>;
- };
- };
};
};
@@ -281,7 +260,7 @@
compatible = "melfas,mms114";
reg = <0x48>;
interrupt-parent = <&gpx0>;
- interrupts = <4 2>;
+ interrupts = <4 IRQ_TYPE_EDGE_FALLING>;
x-size = <720>;
y-size = <1280>;
avdd-supply = <&tsp_reg>;
@@ -302,7 +281,7 @@
reg = <0x66>;
interrupt-parent = <&gpx0>;
- interrupts = <7 0>;
+ interrupts = <7 IRQ_TYPE_NONE>;
max8997,pmic-buck1-uses-gpio-dvs;
max8997,pmic-buck2-uses-gpio-dvs;
diff --git a/arch/arm/boot/dts/exynos4412-itop-scp-core.dtsi b/arch/arm/boot/dts/exynos4412-itop-scp-core.dtsi
index 4cd62487bb16..14ce2c69bc0b 100644
--- a/arch/arm/boot/dts/exynos4412-itop-scp-core.dtsi
+++ b/arch/arm/boot/dts/exynos4412-itop-scp-core.dtsi
@@ -466,7 +466,6 @@
pinctrl-names = "default";
status = "okay";
vmmc-supply = <&buck9_reg>;
- num-slots = <1>;
broken-cd;
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
index 0f1ff792fe44..102acd78be15 100644
--- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
+++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
@@ -32,7 +32,7 @@
power_key {
interrupt-parent = <&gpx1>;
- interrupts = <3 0>;
+ interrupts = <3 IRQ_TYPE_NONE>;
gpios = <&gpx1 3 GPIO_ACTIVE_LOW>;
linux,code = <KEY_POWER>;
label = "power key";
@@ -266,7 +266,7 @@
max77686: pmic@09 {
compatible = "maxim,max77686";
interrupt-parent = <&gpx3>;
- interrupts = <2 0>;
+ interrupts = <2 IRQ_TYPE_NONE>;
pinctrl-names = "default";
pinctrl-0 = <&max77686_irq>;
reg = <0x09>;
@@ -484,7 +484,7 @@
compatible = "maxim,max98090";
reg = <0x10>;
interrupt-parent = <&gpx0>;
- interrupts = <0 0>;
+ interrupts = <0 IRQ_TYPE_NONE>;
clocks = <&i2s0 CLK_I2S_CDCLK>;
clock-names = "mclk";
#sound-dai-cells = <0>;
@@ -516,7 +516,6 @@
mmc-pwrseq = <&emmc_pwrseq>;
status = "okay";
- num-slots = <1>;
broken-cd;
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
diff --git a/arch/arm/boot/dts/exynos4412-odroidu3.dts b/arch/arm/boot/dts/exynos4412-odroidu3.dts
index 7504a5aa538e..44a4de08466b 100644
--- a/arch/arm/boot/dts/exynos4412-odroidu3.dts
+++ b/arch/arm/boot/dts/exynos4412-odroidu3.dts
@@ -78,6 +78,10 @@
regulator-max-microvolt = <3300000>;
};
+&hdmicec {
+ needs-hpd;
+};
+
/* VDDQ for MSHC (eMMC card) */
&ldo22_reg {
regulator-name = "LDO22_VDDQ_MMC4_2.8V";
diff --git a/arch/arm/boot/dts/exynos4412-odroidx.dts b/arch/arm/boot/dts/exynos4412-odroidx.dts
index 46b931eec228..97882267ef09 100644
--- a/arch/arm/boot/dts/exynos4412-odroidx.dts
+++ b/arch/arm/boot/dts/exynos4412-odroidx.dts
@@ -44,7 +44,7 @@
home_key {
interrupt-parent = <&gpx2>;
- interrupts = <2 0>;
+ interrupts = <2 IRQ_TYPE_NONE>;
gpios = <&gpx2 2 GPIO_ACTIVE_HIGH>;
linux,code = <KEY_HOME>;
label = "home key";
diff --git a/arch/arm/boot/dts/exynos4412-origen.dts b/arch/arm/boot/dts/exynos4412-origen.dts
index 7a83e2df18a6..8a89eb893d64 100644
--- a/arch/arm/boot/dts/exynos4412-origen.dts
+++ b/arch/arm/boot/dts/exynos4412-origen.dts
@@ -488,7 +488,6 @@
pinctrl-names = "default";
status = "okay";
- num-slots = <1>;
broken-cd;
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
index 82221a00444d..bceb919ac637 100644
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -144,7 +144,7 @@
max77693@66 {
compatible = "maxim,max77693";
interrupt-parent = <&gpx1>;
- interrupts = <5 2>;
+ interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
reg = <0x66>;
regulators {
@@ -224,7 +224,7 @@
compatible = "capella,cm36651";
reg = <0x18>;
interrupt-parent = <&gpx0>;
- interrupts = <2 2>;
+ interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
vled-supply = <&ps_als_reg>;
};
};
@@ -390,21 +390,6 @@
samsung,pll-clock-frequency = <24000000>;
status = "okay";
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@1 {
- reg = <1>;
-
- dsi_out: endpoint {
- remote-endpoint = <&dsi_in>;
- samsung,burst-clock-frequency = <500000000>;
- samsung,esc-clock-frequency = <20000000>;
- };
- };
- };
-
panel@0 {
compatible = "samsung,s6e8aa0";
reg = <0>;
@@ -432,12 +417,6 @@
vsync-len = <2>;
};
};
-
- port {
- dsi_in: endpoint {
- remote-endpoint = <&dsi_out>;
- };
- };
};
};
@@ -573,7 +552,7 @@
compatible = "melfas,mms114";
reg = <0x48>;
interrupt-parent = <&gpm2>;
- interrupts = <3 2>;
+ interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
x-size = <720>;
y-size = <1280>;
avdd-supply = <&ldo23_reg>;
@@ -611,7 +590,7 @@
max77686: max77686_pmic@09 {
compatible = "maxim,max77686";
interrupt-parent = <&gpx0>;
- interrupts = <7 0>;
+ interrupts = <7 IRQ_TYPE_NONE>;
reg = <0x09>;
#clock-cells = <1>;
@@ -901,7 +880,6 @@
};
&mshc_0 {
- num-slots = <1>;
broken-cd;
non-removable;
card-detect-delay = <200>;
diff --git a/arch/arm/boot/dts/exynos5.dtsi b/arch/arm/boot/dts/exynos5.dtsi
index b74c5379ca26..66d22521c976 100644
--- a/arch/arm/boot/dts/exynos5.dtsi
+++ b/arch/arm/boot/dts/exynos5.dtsi
@@ -55,38 +55,38 @@
interrupt-controller;
samsung,combiner-nr = <32>;
reg = <0x10440000 0x1000>;
- interrupts = <0 0 IRQ_TYPE_LEVEL_HIGH>,
- <0 1 IRQ_TYPE_LEVEL_HIGH>,
- <0 2 IRQ_TYPE_LEVEL_HIGH>,
- <0 3 IRQ_TYPE_LEVEL_HIGH>,
- <0 4 IRQ_TYPE_LEVEL_HIGH>,
- <0 5 IRQ_TYPE_LEVEL_HIGH>,
- <0 6 IRQ_TYPE_LEVEL_HIGH>,
- <0 7 IRQ_TYPE_LEVEL_HIGH>,
- <0 8 IRQ_TYPE_LEVEL_HIGH>,
- <0 9 IRQ_TYPE_LEVEL_HIGH>,
- <0 10 IRQ_TYPE_LEVEL_HIGH>,
- <0 11 IRQ_TYPE_LEVEL_HIGH>,
- <0 12 IRQ_TYPE_LEVEL_HIGH>,
- <0 13 IRQ_TYPE_LEVEL_HIGH>,
- <0 14 IRQ_TYPE_LEVEL_HIGH>,
- <0 15 IRQ_TYPE_LEVEL_HIGH>,
- <0 16 IRQ_TYPE_LEVEL_HIGH>,
- <0 17 IRQ_TYPE_LEVEL_HIGH>,
- <0 18 IRQ_TYPE_LEVEL_HIGH>,
- <0 19 IRQ_TYPE_LEVEL_HIGH>,
- <0 20 IRQ_TYPE_LEVEL_HIGH>,
- <0 21 IRQ_TYPE_LEVEL_HIGH>,
- <0 22 IRQ_TYPE_LEVEL_HIGH>,
- <0 23 IRQ_TYPE_LEVEL_HIGH>,
- <0 24 IRQ_TYPE_LEVEL_HIGH>,
- <0 25 IRQ_TYPE_LEVEL_HIGH>,
- <0 26 IRQ_TYPE_LEVEL_HIGH>,
- <0 27 IRQ_TYPE_LEVEL_HIGH>,
- <0 28 IRQ_TYPE_LEVEL_HIGH>,
- <0 29 IRQ_TYPE_LEVEL_HIGH>,
- <0 30 IRQ_TYPE_LEVEL_HIGH>,
- <0 31 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
};
gic: interrupt-controller@10481000 {
@@ -109,31 +109,31 @@
serial_0: serial@12C00000 {
compatible = "samsung,exynos4210-uart";
reg = <0x12C00000 0x100>;
- interrupts = <0 51 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>;
};
serial_1: serial@12C10000 {
compatible = "samsung,exynos4210-uart";
reg = <0x12C10000 0x100>;
- interrupts = <0 52 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;
};
serial_2: serial@12C20000 {
compatible = "samsung,exynos4210-uart";
reg = <0x12C20000 0x100>;
- interrupts = <0 53 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>;
};
serial_3: serial@12C30000 {
compatible = "samsung,exynos4210-uart";
reg = <0x12C30000 0x100>;
- interrupts = <0 54 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>;
};
i2c_0: i2c@12C60000 {
compatible = "samsung,s3c2440-i2c";
reg = <0x12C60000 0x100>;
- interrupts = <0 56 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
samsung,sysreg-phandle = <&sysreg_system_controller>;
@@ -143,7 +143,7 @@
i2c_1: i2c@12C70000 {
compatible = "samsung,s3c2440-i2c";
reg = <0x12C70000 0x100>;
- interrupts = <0 57 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
samsung,sysreg-phandle = <&sysreg_system_controller>;
@@ -153,7 +153,7 @@
i2c_2: i2c@12C80000 {
compatible = "samsung,s3c2440-i2c";
reg = <0x12C80000 0x100>;
- interrupts = <0 58 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
samsung,sysreg-phandle = <&sysreg_system_controller>;
@@ -163,7 +163,7 @@
i2c_3: i2c@12C90000 {
compatible = "samsung,s3c2440-i2c";
reg = <0x12C90000 0x100>;
- interrupts = <0 59 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
samsung,sysreg-phandle = <&sysreg_system_controller>;
@@ -180,8 +180,8 @@
rtc: rtc@101E0000 {
compatible = "samsung,s3c6410-rtc";
reg = <0x101E0000 0x100>;
- interrupts = <0 43 IRQ_TYPE_LEVEL_HIGH>,
- <0 44 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";
};
diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts
index 6098dacd09f1..18a7f396ac5f 100644
--- a/arch/arm/boot/dts/exynos5250-arndale.dts
+++ b/arch/arm/boot/dts/exynos5250-arndale.dts
@@ -14,7 +14,6 @@
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/input/input.h>
#include "exynos5250.dtsi"
-#include "exynos-mfc-reserved-memory.dtsi"
/ {
model = "Insignal Arndale evaluation board based on EXYNOS5250";
@@ -519,7 +518,6 @@
&mmc_0 {
status = "okay";
- num-slots = <1>;
broken-cd;
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
@@ -534,7 +532,6 @@
&mmc_2 {
status = "okay";
- num-slots = <1>;
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
samsung,dw-mshc-sdr-timing = <2 3>;
diff --git a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
index 2f6ab32b5954..1fd122db18e6 100644
--- a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
+++ b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
@@ -589,6 +589,13 @@
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
};
+
+ hdmi_cec: hdmi-cec {
+ samsung,pins = "gpx3-6";
+ samsung,pin-function = <EXYNOS_PIN_FUNC_3>;
+ samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+ samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
+ };
};
&pinctrl_1 {
diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index a97a785ccc6b..062cba4c2c31 100644
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -13,7 +13,6 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include "exynos5250.dtsi"
-#include "exynos-mfc-reserved-memory.dtsi"
/ {
model = "SAMSUNG SMDK5250 board based on EXYNOS5250";
@@ -347,7 +346,6 @@
&mmc_0 {
status = "okay";
- num-slots = <1>;
broken-cd;
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
@@ -361,7 +359,6 @@
&mmc_2 {
status = "okay";
- num-slots = <1>;
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
samsung,dw-mshc-sdr-timing = <2 3>;
diff --git a/arch/arm/boot/dts/exynos5250-snow-common.dtsi b/arch/arm/boot/dts/exynos5250-snow-common.dtsi
index 8f3a80430748..8788880e459d 100644
--- a/arch/arm/boot/dts/exynos5250-snow-common.dtsi
+++ b/arch/arm/boot/dts/exynos5250-snow-common.dtsi
@@ -272,6 +272,10 @@
vdd_pll-supply = <&ldo8_reg>;
};
+&hdmicec {
+ status = "okay";
+};
+
&i2c_0 {
status = "okay";
samsung,i2c-sda-delay = <100>;
@@ -526,7 +530,6 @@
/* eMMC flash */
&mmc_0 {
status = "okay";
- num-slots = <1>;
non-removable;
samsung,dw-mshc-ciu-div = <3>;
samsung,dw-mshc-sdr-timing = <2 3>;
@@ -540,7 +543,6 @@
/* uSD card */
&mmc_2 {
status = "okay";
- num-slots = <1>;
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
samsung,dw-mshc-sdr-timing = <2 3>;
@@ -560,7 +562,6 @@
*/
&mmc_3 {
status = "okay";
- num-slots = <1>;
non-removable;
cap-sdio-irq;
keep-power-in-suspend;
diff --git a/arch/arm/boot/dts/exynos5250-spring.dts b/arch/arm/boot/dts/exynos5250-spring.dts
index 4d7bdb735ed3..d53bfcbeb39c 100644
--- a/arch/arm/boot/dts/exynos5250-spring.dts
+++ b/arch/arm/boot/dts/exynos5250-spring.dts
@@ -14,7 +14,6 @@
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/input/input.h>
#include "exynos5250.dtsi"
-#include "exynos-mfc-reserved-memory.dtsi"
/ {
model = "Google Spring";
@@ -428,7 +427,6 @@
&mmc_0 {
status = "okay";
- num-slots = <1>;
broken-cd;
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
@@ -446,7 +444,6 @@
*/
&mmc_1 {
status = "okay";
- num-slots = <1>;
broken-cd;
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 79c9c885613a..8dbeb873e99c 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -153,10 +153,10 @@
timer {
compatible = "arm,armv7-timer";
- interrupts = <1 13 0xf08>,
- <1 14 0xf08>,
- <1 11 0xf08>,
- <1 10 0xf08>;
+ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
/*
* Unfortunately we need this since some versions
* of U-Boot on Exynos don't set the CNTFRQ register,
@@ -689,6 +689,19 @@
samsung,syscon-phandle = <&pmu_system_controller>;
};
+ hdmicec: cec@101B0000 {
+ compatible = "samsung,s5p-cec";
+ reg = <0x101B0000 0x200>;
+ interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clock CLK_HDMI_CEC>;
+ clock-names = "hdmicec";
+ samsung,syscon-phandle = <&pmu_system_controller>;
+ hdmi-phandle = <&hdmi>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&hdmi_cec>;
+ status = "disabled";
+ };
+
mixer@14450000 {
compatible = "samsung,exynos5250-mixer";
reg = <0x14450000 0x10000>;
diff --git a/arch/arm/boot/dts/exynos5260-xyref5260.dts b/arch/arm/boot/dts/exynos5260-xyref5260.dts
index d0cc300cfb4b..73b7cdd5f522 100644
--- a/arch/arm/boot/dts/exynos5260-xyref5260.dts
+++ b/arch/arm/boot/dts/exynos5260-xyref5260.dts
@@ -67,7 +67,6 @@
&mmc_0 {
status = "okay";
- num-slots = <1>;
broken-cd;
bypass-smu;
cap-mmc-highspeed;
@@ -83,7 +82,6 @@
&mmc_2 {
status = "okay";
- num-slots = <1>;
cap-sd-highspeed;
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
diff --git a/arch/arm/boot/dts/exynos5410-smdk5410.dts b/arch/arm/boot/dts/exynos5410-smdk5410.dts
index 6cc74d97daae..9cb7726ef8d0 100644
--- a/arch/arm/boot/dts/exynos5410-smdk5410.dts
+++ b/arch/arm/boot/dts/exynos5410-smdk5410.dts
@@ -41,7 +41,6 @@
&mmc_0 {
status = "okay";
- num-slots = <1>;
cap-mmc-highspeed;
broken-cd;
card-detect-delay = <200>;
@@ -53,7 +52,6 @@
&mmc_2 {
status = "okay";
- num-slots = <1>;
cap-sd-highspeed;
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
index 9cc83c51c925..ee1bb9b8b366 100644
--- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
+++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
@@ -16,7 +16,6 @@
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/clock/samsung,s2mps11.h>
-#include "exynos-mfc-reserved-memory.dtsi"
/ {
model = "Insignal Arndale Octa evaluation board based on EXYNOS5420";
diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
index 1f964ec35c5e..683a4cfb4a23 100644
--- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
+++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
@@ -16,7 +16,6 @@
#include <dt-bindings/regulator/maxim,max77802.h>
#include "exynos5420.dtsi"
#include "exynos5420-cpus.dtsi"
-#include "exynos-mfc-reserved-memory.dtsi"
/ {
model = "Google Peach Pit Rev 6+";
@@ -604,7 +603,7 @@
max98090: codec@10 {
compatible = "maxim,max98090";
reg = <0x10>;
- interrupts = <2 0>;
+ interrupts = <2 IRQ_TYPE_NONE>;
interrupt-parent = <&gpx0>;
pinctrl-names = "default";
pinctrl-0 = <&max98090_irq>;
@@ -700,7 +699,6 @@
/* eMMC flash */
&mmc_0 {
status = "okay";
- num-slots = <1>;
mmc-hs200-1_8v;
cap-mmc-highspeed;
non-removable;
@@ -718,7 +716,6 @@
/* WiFi SDIO module */
&mmc_1 {
status = "okay";
- num-slots = <1>;
non-removable;
cap-sdio-irq;
keep-power-in-suspend;
@@ -738,7 +735,6 @@
/* uSD card */
&mmc_2 {
status = "okay";
- num-slots = <1>;
cap-sd-highspeed;
card-detect-delay = <200>;
clock-frequency = <400000000>;
@@ -945,7 +941,7 @@
cros_ec: cros-ec@0 {
compatible = "google,cros-ec-spi";
interrupt-parent = <&gpx1>;
- interrupts = <5 0>;
+ interrupts = <5 IRQ_TYPE_NONE>;
pinctrl-names = "default";
pinctrl-0 = <&ec_spi_cs &ec_irq>;
reg = <0>;
diff --git a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
index 3924b4fafe72..65aa0e300c23 100644
--- a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
+++ b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
@@ -67,6 +67,13 @@
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
};
+
+ hdmi_cec: hdmi-cec {
+ samsung,pins = "gpx3-6";
+ samsung,pin-function = <EXYNOS_PIN_FUNC_3>;
+ samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+ samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
+ };
};
&pinctrl_1 {
diff --git a/arch/arm/boot/dts/exynos5420-smdk5420.dts b/arch/arm/boot/dts/exynos5420-smdk5420.dts
index aaccd0da41e5..08c8ab173e87 100644
--- a/arch/arm/boot/dts/exynos5420-smdk5420.dts
+++ b/arch/arm/boot/dts/exynos5420-smdk5420.dts
@@ -13,7 +13,6 @@
#include "exynos5420.dtsi"
#include "exynos5420-cpus.dtsi"
#include <dt-bindings/gpio/gpio.h>
-#include "exynos-mfc-reserved-memory.dtsi"
/ {
model = "Samsung SMDK5420 board based on EXYNOS5420";
diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index 0db0bcf8da36..02d2f898efa6 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -193,7 +193,7 @@
mfc: codec@11000000 {
compatible = "samsung,mfc-v7";
reg = <0x11000000 0x10000>;
- interrupts = <0 96 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_MFC>;
clock-names = "mfc";
power-domains = <&mfc_pd>;
@@ -203,7 +203,7 @@
mmc_0: mmc@12200000 {
compatible = "samsung,exynos5420-dw-mshc-smu";
- interrupts = <0 75 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
reg = <0x12200000 0x2000>;
@@ -215,7 +215,7 @@
mmc_1: mmc@12210000 {
compatible = "samsung,exynos5420-dw-mshc-smu";
- interrupts = <0 76 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
reg = <0x12210000 0x2000>;
@@ -227,7 +227,7 @@
mmc_2: mmc@12220000 {
compatible = "samsung,exynos5420-dw-mshc";
- interrupts = <0 77 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
reg = <0x12220000 0x1000>;
@@ -325,37 +325,37 @@
pinctrl_0: pinctrl@13400000 {
compatible = "samsung,exynos5420-pinctrl";
reg = <0x13400000 0x1000>;
- interrupts = <0 45 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
wakeup-interrupt-controller {
compatible = "samsung,exynos4210-wakeup-eint";
interrupt-parent = <&gic>;
- interrupts = <0 32 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
};
};
pinctrl_1: pinctrl@13410000 {
compatible = "samsung,exynos5420-pinctrl";
reg = <0x13410000 0x1000>;
- interrupts = <0 78 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
};
pinctrl_2: pinctrl@14000000 {
compatible = "samsung,exynos5420-pinctrl";
reg = <0x14000000 0x1000>;
- interrupts = <0 46 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
};
pinctrl_3: pinctrl@14010000 {
compatible = "samsung,exynos5420-pinctrl";
reg = <0x14010000 0x1000>;
- interrupts = <0 50 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
};
pinctrl_4: pinctrl@03860000 {
compatible = "samsung,exynos5420-pinctrl";
reg = <0x03860000 0x1000>;
- interrupts = <0 47 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
};
amba {
@@ -368,7 +368,7 @@
adma: adma@03880000 {
compatible = "arm,pl330", "arm,primecell";
reg = <0x03880000 0x1000>;
- interrupts = <0 110 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock_audss EXYNOS_ADMA>;
clock-names = "apb_pclk";
#dma-cells = <1>;
@@ -379,7 +379,7 @@
pdma0: pdma@121A0000 {
compatible = "arm,pl330", "arm,primecell";
reg = <0x121A0000 0x1000>;
- interrupts = <0 34 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_PDMA0>;
clock-names = "apb_pclk";
#dma-cells = <1>;
@@ -390,7 +390,7 @@
pdma1: pdma@121B0000 {
compatible = "arm,pl330", "arm,primecell";
reg = <0x121B0000 0x1000>;
- interrupts = <0 35 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_PDMA1>;
clock-names = "apb_pclk";
#dma-cells = <1>;
@@ -401,7 +401,7 @@
mdma0: mdma@10800000 {
compatible = "arm,pl330", "arm,primecell";
reg = <0x10800000 0x1000>;
- interrupts = <0 33 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_MDMA0>;
clock-names = "apb_pclk";
#dma-cells = <1>;
@@ -412,7 +412,7 @@
mdma1: mdma@11C10000 {
compatible = "arm,pl330", "arm,primecell";
reg = <0x11C10000 0x1000>;
- interrupts = <0 124 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_MDMA1>;
clock-names = "apb_pclk";
#dma-cells = <1>;
@@ -484,7 +484,7 @@
spi_0: spi@12d20000 {
compatible = "samsung,exynos4210-spi";
reg = <0x12d20000 0x100>;
- interrupts = <0 68 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&pdma0 5
&pdma0 4>;
dma-names = "tx", "rx";
@@ -500,7 +500,7 @@
spi_1: spi@12d30000 {
compatible = "samsung,exynos4210-spi";
reg = <0x12d30000 0x100>;
- interrupts = <0 69 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&pdma1 5
&pdma1 4>;
dma-names = "tx", "rx";
@@ -516,7 +516,7 @@
spi_2: spi@12d40000 {
compatible = "samsung,exynos4210-spi";
reg = <0x12d40000 0x100>;
- interrupts = <0 70 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&pdma0 7
&pdma0 6>;
dma-names = "tx", "rx";
@@ -544,7 +544,7 @@
dsi@14500000 {
compatible = "samsung,exynos5410-mipi-dsi";
reg = <0x14500000 0x10000>;
- interrupts = <0 82 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
phys = <&mipi_phy 1>;
phy-names = "dsim";
clocks = <&clock CLK_DSIM1>, <&clock CLK_SCLK_MIPI1>;
@@ -557,7 +557,7 @@
adc: adc@12D10000 {
compatible = "samsung,exynos-adc-v2";
reg = <0x12D10000 0x100>;
- interrupts = <0 106 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_TSADC>;
clock-names = "adc";
#io-channel-cells = <1>;
@@ -569,7 +569,7 @@
hsi2c_8: i2c@12E00000 {
compatible = "samsung,exynos5250-hsi2c";
reg = <0x12E00000 0x1000>;
- interrupts = <0 87 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
pinctrl-names = "default";
@@ -582,7 +582,7 @@
hsi2c_9: i2c@12E10000 {
compatible = "samsung,exynos5250-hsi2c";
reg = <0x12E10000 0x1000>;
- interrupts = <0 88 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
pinctrl-names = "default";
@@ -595,7 +595,7 @@
hsi2c_10: i2c@12E20000 {
compatible = "samsung,exynos5250-hsi2c";
reg = <0x12E20000 0x1000>;
- interrupts = <0 203 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 203 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
pinctrl-names = "default";
@@ -608,7 +608,7 @@
hdmi: hdmi@14530000 {
compatible = "samsung,exynos5420-hdmi";
reg = <0x14530000 0x70000>;
- interrupts = <0 95 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_HDMI>, <&clock CLK_SCLK_HDMI>,
<&clock CLK_DOUT_PIXEL>, <&clock CLK_SCLK_HDMIPHY>,
<&clock CLK_MOUT_HDMI>;
@@ -624,10 +624,23 @@
reg = <0x145D0000 0x20>;
};
+ hdmicec: cec@101B0000 {
+ compatible = "samsung,s5p-cec";
+ reg = <0x101B0000 0x200>;
+ interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clock CLK_HDMI_CEC>;
+ clock-names = "hdmicec";
+ samsung,syscon-phandle = <&pmu_system_controller>;
+ hdmi-phandle = <&hdmi>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&hdmi_cec>;
+ status = "disabled";
+ };
+
mixer: mixer@14450000 {
compatible = "samsung,exynos5420-mixer";
reg = <0x14450000 0x10000>;
- interrupts = <0 94 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_MIXER>, <&clock CLK_HDMI>,
<&clock CLK_SCLK_HDMI>;
clock-names = "mixer", "hdmi", "sclk_hdmi";
@@ -638,7 +651,7 @@
rotator: rotator@11C00000 {
compatible = "samsung,exynos5250-rotator";
reg = <0x11C00000 0x64>;
- interrupts = <0 84 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_ROTATOR>;
clock-names = "rotator";
iommus = <&sysmmu_rotator>;
@@ -647,7 +660,7 @@
gsc_0: video-scaler@13e00000 {
compatible = "samsung,exynos5-gsc";
reg = <0x13e00000 0x1000>;
- interrupts = <0 85 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_GSCL0>;
clock-names = "gscl";
power-domains = <&gsc_pd>;
@@ -657,7 +670,7 @@
gsc_1: video-scaler@13e10000 {
compatible = "samsung,exynos5-gsc";
reg = <0x13e10000 0x1000>;
- interrupts = <0 86 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_GSCL1>;
clock-names = "gscl";
power-domains = <&gsc_pd>;
@@ -667,7 +680,7 @@
jpeg_0: jpeg@11F50000 {
compatible = "samsung,exynos5420-jpeg";
reg = <0x11F50000 0x1000>;
- interrupts = <0 89 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
clock-names = "jpeg";
clocks = <&clock CLK_JPEG>;
iommus = <&sysmmu_jpeg0>;
@@ -676,7 +689,7 @@
jpeg_1: jpeg@11F60000 {
compatible = "samsung,exynos5420-jpeg";
reg = <0x11F60000 0x1000>;
- interrupts = <0 168 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>;
clock-names = "jpeg";
clocks = <&clock CLK_JPEG2>;
iommus = <&sysmmu_jpeg1>;
@@ -696,7 +709,7 @@
tmu_cpu0: tmu@10060000 {
compatible = "samsung,exynos5420-tmu";
reg = <0x10060000 0x100>;
- interrupts = <0 65 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_TMU>;
clock-names = "tmu_apbif";
#include "exynos5420-tmu-sensor-conf.dtsi"
@@ -705,7 +718,7 @@
tmu_cpu1: tmu@10064000 {
compatible = "samsung,exynos5420-tmu";
reg = <0x10064000 0x100>;
- interrupts = <0 183 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 183 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_TMU>;
clock-names = "tmu_apbif";
#include "exynos5420-tmu-sensor-conf.dtsi"
@@ -714,7 +727,7 @@
tmu_cpu2: tmu@10068000 {
compatible = "samsung,exynos5420-tmu-ext-triminfo";
reg = <0x10068000 0x100>, <0x1006c000 0x4>;
- interrupts = <0 184 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_TMU>, <&clock CLK_TMU>;
clock-names = "tmu_apbif", "tmu_triminfo_apbif";
#include "exynos5420-tmu-sensor-conf.dtsi"
@@ -723,7 +736,7 @@
tmu_cpu3: tmu@1006c000 {
compatible = "samsung,exynos5420-tmu-ext-triminfo";
reg = <0x1006c000 0x100>, <0x100a0000 0x4>;
- interrupts = <0 185 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 185 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_TMU>, <&clock CLK_TMU_GPU>;
clock-names = "tmu_apbif", "tmu_triminfo_apbif";
#include "exynos5420-tmu-sensor-conf.dtsi"
@@ -732,7 +745,7 @@
tmu_gpu: tmu@100a0000 {
compatible = "samsung,exynos5420-tmu-ext-triminfo";
reg = <0x100a0000 0x100>, <0x10068000 0x4>;
- interrupts = <0 215 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 215 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clock CLK_TMU_GPU>, <&clock CLK_TMU>;
clock-names = "tmu_apbif", "tmu_triminfo_apbif";
#include "exynos5420-tmu-sensor-conf.dtsi"
@@ -804,7 +817,7 @@
sysmmu_scaler1r: sysmmu@0x12890000 {
compatible = "samsung,exynos-sysmmu";
reg = <0x12890000 0x1000>;
- interrupts = <0 186 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 186 IRQ_TYPE_LEVEL_HIGH>;
clock-names = "sysmmu", "master";
clocks = <&clock CLK_SMMU_MSCL1>, <&clock CLK_MSCL1>;
#iommu-cells = <0>;
@@ -813,7 +826,7 @@
sysmmu_scaler2r: sysmmu@0x128A0000 {
compatible = "samsung,exynos-sysmmu";
reg = <0x128A0000 0x1000>;
- interrupts = <0 188 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>;
clock-names = "sysmmu", "master";
clocks = <&clock CLK_SMMU_MSCL2>, <&clock CLK_MSCL2>;
#iommu-cells = <0>;
@@ -872,7 +885,7 @@
sysmmu_jpeg1: sysmmu@0x11F20000 {
compatible = "samsung,exynos-sysmmu";
reg = <0x11F20000 0x1000>;
- interrupts = <0 169 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
clock-names = "sysmmu", "master";
clocks = <&clock CLK_SMMU_JPEG2>, <&clock CLK_JPEG2>;
#iommu-cells = <0>;
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi
index 9493923ec652..c0b85981c6bf 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi
@@ -49,7 +49,7 @@
compatible = "maxim,max98090";
reg = <0x10>;
interrupt-parent = <&gpx3>;
- interrupts = <2 0>;
+ interrupts = <2 IRQ_TYPE_NONE>;
clocks = <&i2s0 CLK_I2S_CDCLK>;
clock-names = "mclk";
#sound-dai-cells = <0>;
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
index 05b9afdd6757..a183b56283f8 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
@@ -18,7 +18,6 @@
#include <dt-bindings/sound/samsung-i2s.h>
#include "exynos5800.dtsi"
#include "exynos5422-cpus.dtsi"
-#include "exynos-mfc-reserved-memory.dtsi"
/ {
memory@40000000 {
@@ -265,6 +264,11 @@
vdd-supply = <&ldo6_reg>;
};
+&hdmicec {
+ status = "okay";
+ needs-hpd;
+};
+
&hsi2c_4 {
status = "okay";
diff --git a/arch/arm/boot/dts/exynos5440.dtsi b/arch/arm/boot/dts/exynos5440.dtsi
index a4ea018464fc..7a00be7ea6d7 100644
--- a/arch/arm/boot/dts/exynos5440.dtsi
+++ b/arch/arm/boot/dts/exynos5440.dtsi
@@ -200,7 +200,7 @@
compatible = "snps,dwmac-3.70a", "snps,dwmac";
reg = <0x00230000 0x8000>;
interrupt-parent = <&gic>;
- interrupts = <GIC_SPI 31 4>;
+ interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "macirq";
phy-mode = "sgmii";
clocks = <&clock CLK_GMAC0>;
@@ -317,6 +317,7 @@
phys = <&pcie_phy0>;
ranges = <0x81000000 0 0 0x40001000 0 0x00010000 /* downstream I/O */
0x82000000 0 0x40011000 0x40011000 0 0x1ffef000>; /* non-prefetchable memory */
+ bus-range = <0x00 0xff>;
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0x0 0 &gic 53>;
@@ -339,6 +340,7 @@
phys = <&pcie_phy1>;
ranges = <0x81000000 0 0 0x60001000 0 0x00010000 /* downstream I/O */
0x82000000 0 0x60011000 0x60011000 0 0x1ffef000>; /* non-prefetchable memory */
+ bus-range = <0x00 0xff>;
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0x0 0 &gic 56>;
diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
index f9ff7f07ae0c..b2b95ff205e8 100644
--- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
+++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
@@ -16,7 +16,6 @@
#include <dt-bindings/regulator/maxim,max77802.h>
#include "exynos5800.dtsi"
#include "exynos5420-cpus.dtsi"
-#include "exynos-mfc-reserved-memory.dtsi"
/ {
model = "Google Peach Pi Rev 10+";
@@ -604,7 +603,7 @@
max98091: codec@10 {
compatible = "maxim,max98091";
reg = <0x10>;
- interrupts = <2 0>;
+ interrupts = <2 IRQ_TYPE_NONE>;
interrupt-parent = <&gpx0>;
pinctrl-names = "default";
pinctrl-0 = <&max98091_irq>;
@@ -668,7 +667,6 @@
/* eMMC flash */
&mmc_0 {
status = "okay";
- num-slots = <1>;
mmc-hs200-1_8v;
mmc-hs400-1_8v;
cap-mmc-highspeed;
@@ -687,7 +685,6 @@
/* WiFi SDIO module */
&mmc_1 {
status = "okay";
- num-slots = <1>;
non-removable;
cap-sdio-irq;
keep-power-in-suspend;
@@ -707,7 +704,6 @@
/* uSD card */
&mmc_2 {
status = "okay";
- num-slots = <1>;
cap-sd-highspeed;
card-detect-delay = <200>;
clock-frequency = <400000000>;
@@ -914,7 +910,7 @@
cros_ec: cros-ec@0 {
compatible = "google,cros-ec-spi";
interrupt-parent = <&gpx1>;
- interrupts = <5 0>;
+ interrupts = <5 IRQ_TYPE_NONE>;
pinctrl-names = "default";
pinctrl-0 = <&ec_spi_cs &ec_irq>;
reg = <0>;
diff --git a/arch/arm/boot/dts/ge863-pro3.dtsi b/arch/arm/boot/dts/ge863-pro3.dtsi
index 4aee5cc75fa4..8613944ea5c5 100644
--- a/arch/arm/boot/dts/ge863-pro3.dtsi
+++ b/arch/arm/boot/dts/ge863-pro3.dtsi
@@ -23,20 +23,39 @@
};
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "soft";
- nand-on-flash-bbt;
+ ebi: ebi@10000000 {
status = "okay";
- boot@0 {
- label = "boot";
- reg = <0x0 0x7c0000>;
- };
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_cs &pinctrl_nand_rb>;
+ pinctrl-names = "default";
+
+ nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ rb-gpios = <&pioC 13 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&pioC 14 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "soft";
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ boot@0 {
+ label = "boot";
+ reg = <0x0 0x7c0000>;
+ };
- root@07c0000 {
- label = "root";
- reg = <0x7c0000 0x7840000>;
+ root@07c0000 {
+ label = "root";
+ reg = <0x7c0000 0x7840000>;
+ };
+ };
+ };
};
};
};
diff --git a/arch/arm/boot/dts/gemini-dlink-dir-685.dts b/arch/arm/boot/dts/gemini-dlink-dir-685.dts
new file mode 100644
index 000000000000..e75e2d44371c
--- /dev/null
+++ b/arch/arm/boot/dts/gemini-dlink-dir-685.dts
@@ -0,0 +1,246 @@
+/*
+ * Device Tree file for D-Link DIR-685 Xtreme N Storage Router
+ */
+
+/dts-v1/;
+
+#include "gemini.dtsi"
+#include <dt-bindings/input/input.h>
+
+/ {
+ model = "D-Link DIR-685 Xtreme N Storage Router";
+ compatible = "dlink,dir-685", "cortina,gemini";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ memory {
+ /* 128 MB SDRAM in 2 x Hynix HY5DU121622DTP-D43 */
+ device_type = "memory";
+ reg = <0x00000000 0x8000000>;
+ };
+
+ chosen {
+ stdout-path = "uart0:115200n8";
+ };
+
+ gpio_keys {
+ compatible = "gpio-keys";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ button-esc {
+ debounce_interval = <50>;
+ wakeup-source;
+ linux,code = <KEY_ESC>;
+ label = "reset";
+ /* Collides with LPC_LAD[0], UART DCD, SSP 97RST */
+ gpios = <&gpio0 8 GPIO_ACTIVE_LOW>;
+ };
+ button-eject {
+ debounce_interval = <50>;
+ wakeup-source;
+ linux,code = <KEY_EJECTCD>;
+ label = "unmount";
+ /* Collides with LPC LFRAME, UART RTS, SSP TXD */
+ gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ led-wps {
+ label = "dir685:blue:WPS";
+ /* Collides with ICE */
+ gpios = <&gpio0 7 GPIO_ACTIVE_LOW>;
+ default-state = "on";
+ linux,default-trigger = "heartbeat";
+ };
+ /*
+ * These two LEDs are on the side of the device.
+ * For electrical reasons, both LEDs cannot be active
+ * at the same time so only blue or orange can on at
+ * one time. Enabling both makes the LED go dark.
+ * The LEDs both sit inside the unmount button and the
+ * label on the case says "unmount".
+ */
+ led-blue-hd {
+ label = "dir685:blue:HD";
+ /* Collides with LPC_SERIRQ, UART DTR, SSP FSC pins */
+ gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+ led-orange-hd {
+ label = "dir685:orange:HD";
+ /* Collides with LPC_LAD[2], UART DSR, SSP ECLK pins */
+ gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+ };
+
+ /*
+ * This is a Sunon Maglev GM0502PFV2-8 cooling fan @10000 RPM.
+ * Since the platform has no temperature sensor, this is controlled
+ * from userspace by using the hard disks S.M.A.R.T. temperature
+ * sensor. It is turned on when the temperature exceeds 46 degrees
+ * and turned off when the temperatures goes below 41 degrees
+ * (celsius).
+ */
+ gpio-fan {
+ compatible = "gpio-fan";
+ /* Collides with IDE */
+ gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
+ gpio-fan,speed-map = <0 0>, <10000 1>;
+ #cooling-cells = <2>;
+ };
+
+ /*
+ * The touchpad input is connected to a GPIO bit-banged
+ * I2C bus.
+ */
+ gpio-i2c {
+ compatible = "i2c-gpio";
+ /* Collides with ICE */
+ gpios = <&gpio0 5 0>, /* SDA */
+ <&gpio0 6 0>; /* SCL */
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ touchkeys@26 {
+ compatible = "dlink,dir685-touchkeys";
+ reg = <0x26>;
+ interrupt-parent = <&gpio0>;
+ /* Collides with NAND flash */
+ interrupts = <17 IRQ_TYPE_EDGE_FALLING>;
+ };
+ };
+
+ soc {
+ flash@30000000 {
+ status = "okay";
+ /* 32MB of flash */
+ reg = <0x30000000 0x02000000>;
+
+ /*
+ * This "RedBoot" is the Storlink derivative.
+ */
+ partition@0 {
+ label = "RedBoot";
+ reg = <0x00000000 0x00040000>;
+ read-only;
+ };
+ /*
+ * Between the boot loader and the rootfs is the kernel
+ * in a custom Storlink format flashed from the boot
+ * menu. The rootfs is in squashfs format.
+ */
+ partition@1800c0 {
+ label = "rootfs";
+ reg = <0x001800c0 0x01dbff40>;
+ read-only;
+ };
+ partition@1f40000 {
+ label = "upgrade";
+ reg = <0x01f40000 0x00040000>;
+ read-only;
+ };
+ partition@1f80000 {
+ label = "rgdb";
+ reg = <0x01f80000 0x00040000>;
+ read-only;
+ };
+ /*
+ * This partition contains MAC addresses for WAN,
+ * WLAN and LAN, and the country code (for wireless
+ * I guess).
+ */
+ partition@1fc0000 {
+ label = "nvram";
+ reg = <0x01fc0000 0x00020000>;
+ read-only;
+ };
+ partition@1fe0000 {
+ label = "LangPack";
+ reg = <0x01fe0000 0x00020000>;
+ read-only;
+ };
+ };
+
+ syscon: syscon@40000000 {
+ pinctrl {
+ /*
+ * gpio0bgrp cover line 5, 6 used by TK I2C
+ * gpio0bgrp cover line 7 used by WPS LED
+ * gpio0cgrp cover line 8, 13 used by keys
+ * and 11, 12 used by the HD LEDs
+ * gpio0egrp cover line 16 used by VDISP
+ * gpio0fgrp cover line 17 used by TK IRQ
+ * gpio0ggrp cover line 20 used by panel CS
+ * gpio0hgrp cover line 21,22 used by RTL8366RB
+ */
+ gpio0_default_pins: pinctrl-gpio0 {
+ mux {
+ function = "gpio0";
+ groups = "gpio0bgrp",
+ "gpio0cgrp",
+ "gpio0egrp",
+ "gpio0fgrp",
+ "gpio0ggrp",
+ "gpio0hgrp";
+ };
+ };
+ /*
+ * gpio1bgrp cover line 5,8,7 used by panel SPI
+ * also line 6 used by the fan
+ *
+ */
+ gpio1_default_pins: pinctrl-gpio1 {
+ mux {
+ function = "gpio1";
+ groups = "gpio1bgrp";
+ };
+ };
+ };
+ };
+
+ sata: sata@46000000 {
+ cortina,gemini-ata-muxmode = <0>;
+ cortina,gemini-enable-sata-bridge;
+ status = "okay";
+ };
+
+ gpio0: gpio@4d000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio0_default_pins>;
+ };
+
+ gpio1: gpio@4e000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio1_default_pins>;
+ };
+
+ pci@50000000 {
+ status = "okay";
+ interrupt-map-mask = <0xf800 0 0 7>;
+ interrupt-map =
+ <0x4800 0 0 1 &pci_intc 0>, /* Slot 9 */
+ <0x4800 0 0 2 &pci_intc 1>,
+ <0x4800 0 0 3 &pci_intc 2>,
+ <0x4800 0 0 4 &pci_intc 3>,
+ <0x5000 0 0 1 &pci_intc 1>, /* Slot 10 */
+ <0x5000 0 0 2 &pci_intc 2>,
+ <0x5000 0 0 3 &pci_intc 3>,
+ <0x5000 0 0 4 &pci_intc 0>,
+ <0x5800 0 0 1 &pci_intc 2>, /* Slot 11 */
+ <0x5800 0 0 2 &pci_intc 3>,
+ <0x5800 0 0 3 &pci_intc 0>,
+ <0x5800 0 0 4 &pci_intc 1>,
+ <0x6000 0 0 1 &pci_intc 3>, /* Slot 12 */
+ <0x6000 0 0 2 &pci_intc 0>,
+ <0x6000 0 0 3 &pci_intc 1>,
+ <0x6000 0 0 4 &pci_intc 2>;
+ };
+
+ ata@63000000 {
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/gemini-nas4220b.dts b/arch/arm/boot/dts/gemini-nas4220b.dts
index 7668ba52158e..b4fc58c8cf8d 100644
--- a/arch/arm/boot/dts/gemini-nas4220b.dts
+++ b/arch/arm/boot/dts/gemini-nas4220b.dts
@@ -33,6 +33,7 @@
wakeup-source;
linux,code = <KEY_SETUP>;
label = "Backup button";
+ /* Conflict with TVC */
gpios = <&gpio1 29 GPIO_ACTIVE_LOW>;
};
button@31 {
@@ -40,6 +41,7 @@
wakeup-source;
linux,code = <KEY_RESTART>;
label = "Softreset button";
+ /* Conflict with TVC */
gpios = <&gpio1 31 GPIO_ACTIVE_LOW>;
};
};
@@ -48,11 +50,13 @@
compatible = "gpio-leds";
led@28 {
label = "nas4220b:orange:hdd";
+ /* Conflict with TVC */
gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
default-state = "on";
};
led@30 {
label = "nas4220b:green:os";
+ /* Conflict with TVC */
gpios = <&gpio1 30 GPIO_ACTIVE_HIGH>;
default-state = "on";
linux,default-trigger = "heartbeat";
@@ -98,5 +102,35 @@
read-only;
};
};
+
+ syscon: syscon@40000000 {
+ pinctrl {
+ /*
+ * gpio1dgrp cover line 28-31 otherwise used
+ * by TVC.
+ */
+ gpio1_default_pins: pinctrl-gpio1 {
+ mux {
+ function = "gpio1";
+ groups = "gpio1dgrp";
+ };
+ };
+ };
+ };
+
+ sata: sata@46000000 {
+ cortina,gemini-ata-muxmode = <0>;
+ cortina,gemini-enable-sata-bridge;
+ status = "okay";
+ };
+
+ gpio1: gpio@4e000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio1_default_pins>;
+ };
+
+ ata@63000000 {
+ status = "okay";
+ };
};
};
diff --git a/arch/arm/boot/dts/gemini-rut1xx.dts b/arch/arm/boot/dts/gemini-rut1xx.dts
index 7b920bfbda32..3613b264f45f 100644
--- a/arch/arm/boot/dts/gemini-rut1xx.dts
+++ b/arch/arm/boot/dts/gemini-rut1xx.dts
@@ -33,6 +33,7 @@
wakeup-source;
linux,code = <KEY_SETUP>;
label = "Reset to defaults";
+ /* Conflict with TVC */
gpios = <&gpio1 28 GPIO_ACTIVE_LOW>;
};
};
@@ -42,12 +43,14 @@
led@7 {
/* FIXME: add the LED color */
label = "rut1xx::gsm";
+ /* Conflict with ICE */
gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
default-state = "on";
};
led@31 {
/* FIXME: add the LED color */
label = "rut1xx::power";
+ /* Conflict with NAND CE0 */
gpios = <&gpio0 17 GPIO_ACTIVE_HIGH>;
default-state = "off";
linux,default-trigger = "heartbeat";
@@ -61,5 +64,41 @@
reg = <0x30000000 0x00800000>;
/* TODO: add flash partitions here */
};
+
+ syscon: syscon@40000000 {
+ pinctrl {
+ /*
+ * gpio0bgrp cover line 7 used by GSM LED
+ * gpio0fgrp cover line 17 used by power LED
+ */
+ gpio0_default_pins: pinctrl-gpio0 {
+ mux {
+ function = "gpio0";
+ groups = "gpio0bgrp",
+ "gpio0fgrp";
+ };
+ };
+ /*
+ * gpio1dgrp cover line 28-31 otherwise used
+ * by TVC.
+ */
+ gpio1_default_pins: pinctrl-gpio1 {
+ mux {
+ function = "gpio1";
+ groups = "gpio1dgrp";
+ };
+ };
+ };
+ };
+
+ gpio0: gpio@4d000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio0_default_pins>;
+ };
+
+ gpio1: gpio@4e000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio1_default_pins>;
+ };
};
};
diff --git a/arch/arm/boot/dts/gemini-sq201.dts b/arch/arm/boot/dts/gemini-sq201.dts
index 46309e79cc7b..7cfa9caf47d4 100644
--- a/arch/arm/boot/dts/gemini-sq201.dts
+++ b/arch/arm/boot/dts/gemini-sq201.dts
@@ -33,6 +33,7 @@
wakeup-source;
linux,code = <KEY_SETUP>;
label = "factory reset";
+ /* Conflict with NAND flash */
gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
};
};
@@ -41,12 +42,14 @@
compatible = "gpio-leds";
led@20 {
label = "sq201:green:info";
+ /* Conflict with parallel flash */
gpios = <&gpio0 20 GPIO_ACTIVE_HIGH>;
default-state = "on";
linux,default-trigger = "heartbeat";
};
led@31 {
label = "sq201:green:usb";
+ /* Conflict with parallel and NAND flash */
gpios = <&gpio0 31 GPIO_ACTIVE_HIGH>;
default-state = "off";
linux,default-trigger = "usb-host";
@@ -55,7 +58,15 @@
soc {
flash@30000000 {
- status = "okay";
+ /*
+ * Flash access can be enabled, with the side effect
+ * of disabling access to GPIO LED on GPIO0[20] which
+ * reuse one of the parallel flash chip select lines.
+ * Also the default firmware on the machine has the
+ * problem that since it uses the flash, the two LEDS
+ * on the right become numb.
+ */
+ /* status = "okay"; */
/* 16MB of flash */
reg = <0x30000000 0x01000000>;
@@ -93,6 +104,35 @@
};
};
+ syscon: syscon@40000000 {
+ pinctrl {
+ /*
+ * gpio0fgrp cover line 18 used by reset button
+ * gpio0ggrp cover line 20 used by info LED
+ * gpio0kgrp cover line 31 used by USB LED
+ */
+ gpio0_default_pins: pinctrl-gpio0 {
+ mux {
+ function = "gpio0";
+ groups = "gpio0fgrp",
+ "gpio0ggrp",
+ "gpio0kgrp";
+ };
+ };
+ };
+ };
+
+ sata: sata@46000000 {
+ cortina,gemini-ata-muxmode = <0>;
+ cortina,gemini-enable-sata-bridge;
+ status = "okay";
+ };
+
+ gpio0: gpio@4d000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio0_default_pins>;
+ };
+
pci@50000000 {
status = "okay";
interrupt-map-mask = <0xf800 0 0 7>;
@@ -114,5 +154,9 @@
<0x6000 0 0 3 &pci_intc 1>,
<0x6000 0 0 4 &pci_intc 2>;
};
+
+ ata@63000000 {
+ status = "okay";
+ };
};
};
diff --git a/arch/arm/boot/dts/gemini-wbd111.dts b/arch/arm/boot/dts/gemini-wbd111.dts
index 63b756e3bf5a..38a49e750478 100644
--- a/arch/arm/boot/dts/gemini-wbd111.dts
+++ b/arch/arm/boot/dts/gemini-wbd111.dts
@@ -33,6 +33,7 @@
wakeup-source;
linux,code = <KEY_SETUP>;
label = "reset";
+ /* Conflict with ICE */
gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;
};
};
@@ -42,21 +43,25 @@
led@1 {
label = "wbd111:red:L3";
+ /* Conflict with TVC and extended parallel flash */
gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
default-state = "off";
};
led@2 {
label = "wbd111:green:L4";
+ /* Conflict with TVC and extended parallel flash */
gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>;
default-state = "off";
};
led@3 {
label = "wbd111:red:L4";
+ /* Conflict with TVC and extended parallel flash */
gpios = <&gpio0 3 GPIO_ACTIVE_HIGH>;
default-state = "off";
};
led@5 {
label = "wbd111:green:L3";
+ /* Conflict with TVC and extended parallel flash */
gpios = <&gpio0 5 GPIO_ACTIVE_HIGH>;
default-state = "on";
linux,default-trigger = "heartbeat";
@@ -98,5 +103,26 @@
read-only;
};
};
+
+ syscon: syscon@40000000 {
+ pinctrl {
+ /*
+ * gpio0agrp cover line 0-4
+ * gpio0bgrp cover line 5
+ */
+ gpio0_default_pins: pinctrl-gpio0 {
+ mux {
+ function = "gpio0";
+ groups = "gpio0agrp",
+ "gpio0bgrp";
+ };
+ };
+ };
+ };
+
+ gpio0: gpio@4d000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio0_default_pins>;
+ };
};
};
diff --git a/arch/arm/boot/dts/gemini-wbd222.dts b/arch/arm/boot/dts/gemini-wbd222.dts
index 9747f5a47807..f77e34e0df0b 100644
--- a/arch/arm/boot/dts/gemini-wbd222.dts
+++ b/arch/arm/boot/dts/gemini-wbd222.dts
@@ -33,6 +33,7 @@
wakeup-source;
linux,code = <KEY_SETUP>;
label = "reset";
+ /* Conflict with ICE */
gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;
};
};
@@ -42,21 +43,25 @@
led@1 {
label = "wbd111:red:L3";
+ /* Conflict with TVC and extended parallel flash */
gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
default-state = "off";
};
led@2 {
label = "wbd111:green:L4";
+ /* Conflict with TVC and extended parallel flash */
gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>;
default-state = "off";
};
led@3 {
label = "wbd111:red:L4";
+ /* Conflict with TVC and extended parallel flash */
gpios = <&gpio0 3 GPIO_ACTIVE_HIGH>;
default-state = "off";
};
led@5 {
label = "wbd111:green:L3";
+ /* Conflict with TVC and extended parallel flash */
gpios = <&gpio0 5 GPIO_ACTIVE_HIGH>;
default-state = "on";
linux,default-trigger = "heartbeat";
@@ -98,5 +103,26 @@
read-only;
};
};
+
+ syscon: syscon@40000000 {
+ pinctrl {
+ /*
+ * gpio0agrp cover line 0-4
+ * gpio0bgrp cover line 5
+ */
+ gpio0_default_pins: pinctrl-gpio0 {
+ mux {
+ function = "gpio0";
+ groups = "gpio0agrp",
+ "gpio0bgrp";
+ };
+ };
+ };
+ };
+
+ gpio0: gpio@4d000000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio0_default_pins>;
+ };
};
};
diff --git a/arch/arm/boot/dts/gemini.dtsi b/arch/arm/boot/dts/gemini.dtsi
index b8d011bdcc76..f0d178c77153 100644
--- a/arch/arm/boot/dts/gemini.dtsi
+++ b/arch/arm/boot/dts/gemini.dtsi
@@ -5,6 +5,8 @@
/include/ "skeleton.dtsi"
#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/clock/cortina,gemini-clock.h>
+#include <dt-bindings/reset/cortina,gemini-reset.h>
#include <dt-bindings/gpio/gpio.h>
/ {
@@ -18,6 +20,8 @@
flash@30000000 {
compatible = "cortina,gemini-flash", "cfi-flash";
syscon = <&syscon>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pflash_default_pins>;
bank-width = <2>;
#address-cells = <1>;
#size-cells = <1>;
@@ -25,8 +29,11 @@
};
syscon: syscon@40000000 {
- compatible = "cortina,gemini-syscon", "syscon", "simple-mfd";
+ compatible = "cortina,gemini-syscon",
+ "syscon", "simple-mfd";
reg = <0x40000000 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
syscon-reboot {
compatible = "syscon-reboot";
@@ -36,29 +43,138 @@
/* RESET_GLOBAL | RESET_CPU1 */
mask = <0xC0000000>;
};
+
+ pinctrl {
+ compatible = "cortina,gemini-pinctrl";
+ regmap = <&syscon>;
+ /* Hog the DRAM pins */
+ pinctrl-names = "default";
+ pinctrl-0 = <&dram_default_pins>, <&system_default_pins>,
+ <&vcontrol_default_pins>;
+
+ dram_default_pins: pinctrl-dram {
+ mux {
+ function = "dram";
+ groups = "dramgrp";
+ };
+ };
+ rtc_default_pins: pinctrl-rtc {
+ mux {
+ function = "rtc";
+ groups = "rtcgrp";
+ };
+ };
+ power_default_pins: pinctrl-power {
+ mux {
+ function = "power";
+ groups = "powergrp";
+ };
+ };
+ cir_default_pins: pinctrl-cir {
+ mux {
+ function = "cir";
+ groups = "cirgrp";
+ };
+ };
+ system_default_pins: pinctrl-system {
+ mux {
+ function = "system";
+ groups = "systemgrp";
+ };
+ };
+ vcontrol_default_pins: pinctrl-vcontrol {
+ mux {
+ function = "vcontrol";
+ groups = "vcontrolgrp";
+ };
+ };
+ ice_default_pins: pinctrl-ice {
+ mux {
+ function = "ice";
+ groups = "icegrp";
+ };
+ };
+ uart_default_pins: pinctrl-uart {
+ mux {
+ function = "uart";
+ groups = "uartrxtxgrp";
+ };
+ };
+ pflash_default_pins: pinctrl-pflash {
+ mux {
+ function = "pflash";
+ groups = "pflashgrp";
+ };
+ };
+ usb_default_pins: pinctrl-usb {
+ mux {
+ function = "usb";
+ groups = "usbgrp";
+ };
+ };
+ gmii_default_pins: pinctrl-gmii {
+ mux {
+ function = "gmii";
+ groups = "gmiigrp";
+ };
+ };
+ pci_default_pins: pinctrl-pci {
+ mux {
+ function = "pci";
+ groups = "pcigrp";
+ };
+ };
+ sata_default_pins: pinctrl-sata {
+ mux {
+ function = "sata";
+ groups = "satagrp";
+ };
+ };
+ /* Activate both groups of pins for this state */
+ sata_and_ide_pins: pinctrl-sata-ide {
+ mux0 {
+ function = "sata";
+ groups = "satagrp";
+ };
+ mux1 {
+ function = "ide";
+ groups = "idegrp";
+ };
+ };
+ };
};
watchdog@41000000 {
- compatible = "cortina,gemini-watchdog";
+ compatible = "cortina,gemini-watchdog", "faraday,ftwdt010";
reg = <0x41000000 0x1000>;
interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
+ resets = <&syscon GEMINI_RESET_WDOG>;
+ clocks = <&syscon GEMINI_CLK_APB>;
+ clock-names = "PCLK";
};
uart0: serial@42000000 {
compatible = "ns16550a";
reg = <0x42000000 0x100>;
- clock-frequency = <48000000>;
+ resets = <&syscon GEMINI_RESET_UART>;
+ clocks = <&syscon GEMINI_CLK_UART>;
interrupts = <18 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart_default_pins>;
reg-shift = <2>;
};
timer@43000000 {
- compatible = "cortina,gemini-timer";
+ compatible = "faraday,fttmr010";
reg = <0x43000000 0x1000>;
interrupt-parent = <&intcon>;
interrupts = <14 IRQ_TYPE_EDGE_FALLING>, /* Timer 1 */
<15 IRQ_TYPE_EDGE_FALLING>, /* Timer 2 */
<16 IRQ_TYPE_EDGE_FALLING>; /* Timer 3 */
+ resets = <&syscon GEMINI_RESET_TIMER>;
+ /* APB clock or RTC clock */
+ clocks = <&syscon GEMINI_CLK_APB>, <&syscon GEMINI_CLK_RTC>;
+ clock-names = "PCLK", "EXTCLK";
syscon = <&syscon>;
};
@@ -66,11 +182,38 @@
compatible = "cortina,gemini-rtc";
reg = <0x45000000 0x100>;
interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;
+ resets = <&syscon GEMINI_RESET_RTC>;
+ clocks = <&syscon GEMINI_CLK_APB>, <&syscon GEMINI_CLK_RTC>;
+ clock-names = "PCLK", "EXTCLK";
+ pinctrl-names = "default";
+ pinctrl-0 = <&rtc_default_pins>;
+ };
+
+ sata: sata@46000000 {
+ compatible = "cortina,gemini-sata-bridge";
+ reg = <0x46000000 0x100>;
+ resets = <&syscon GEMINI_RESET_SATA0>,
+ <&syscon GEMINI_RESET_SATA1>;
+ reset-names = "sata0", "sata1";
+ clocks = <&syscon GEMINI_CLK_GATE_SATA0>,
+ <&syscon GEMINI_CLK_GATE_SATA1>;
+ clock-names = "SATA0_PCLK", "SATA1_PCLK";
+ /*
+ * This defines the special "ide" state that needs
+ * to be explicitly enabled to enable the IDE pins,
+ * as these pins are normally used for other things.
+ */
+ pinctrl-names = "default", "ide";
+ pinctrl-0 = <&sata_default_pins>;
+ pinctrl-1 = <&sata_and_ide_pins>;
+ syscon = <&syscon>;
+ status = "disabled";
};
intcon: interrupt-controller@48000000 {
compatible = "faraday,ftintc010";
reg = <0x48000000 0x1000>;
+ resets = <&syscon GEMINI_RESET_INTCON0>;
interrupt-controller;
#interrupt-cells = <2>;
};
@@ -79,12 +222,16 @@
compatible = "cortina,gemini-power-controller";
reg = <0x4b000000 0x100>;
interrupts = <26 IRQ_TYPE_EDGE_RISING>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&power_default_pins>;
};
gpio0: gpio@4d000000 {
compatible = "cortina,gemini-gpio", "faraday,ftgpio010";
reg = <0x4d000000 0x100>;
interrupts = <22 IRQ_TYPE_LEVEL_HIGH>;
+ resets = <&syscon GEMINI_RESET_GPIO0>;
+ clocks = <&syscon GEMINI_CLK_APB>;
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;
@@ -95,6 +242,8 @@
compatible = "cortina,gemini-gpio", "faraday,ftgpio010";
reg = <0x4e000000 0x100>;
interrupts = <23 IRQ_TYPE_LEVEL_HIGH>;
+ resets = <&syscon GEMINI_RESET_GPIO1>;
+ clocks = <&syscon GEMINI_CLK_APB>;
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;
@@ -105,6 +254,8 @@
compatible = "cortina,gemini-gpio", "faraday,ftgpio010";
reg = <0x4f000000 0x100>;
interrupts = <24 IRQ_TYPE_LEVEL_HIGH>;
+ resets = <&syscon GEMINI_RESET_GPIO2>;
+ clocks = <&syscon GEMINI_CLK_APB>;
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;
@@ -118,6 +269,11 @@
* to configure the host bridge.
*/
reg = <0x50000000 0x100>;
+ resets = <&syscon GEMINI_RESET_PCI>;
+ clocks = <&syscon GEMINI_CLK_GATE_PCI>, <&syscon GEMINI_CLK_PCI>;
+ clock-names = "PCLK", "PCICLK";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pci_default_pins>;
#address-cells = <3>;
#size-cells = <2>;
#interrupt-cells = <1>;
@@ -152,5 +308,44 @@
#interrupt-cells = <1>;
};
};
+
+ ata@63000000 {
+ compatible = "cortina,gemini-pata", "faraday,ftide010";
+ reg = <0x63000000 0x1000>;
+ interrupts = <4 IRQ_TYPE_EDGE_RISING>;
+ resets = <&syscon GEMINI_RESET_IDE>;
+ clocks = <&syscon GEMINI_CLK_GATE_IDE>;
+ clock-names = "PCLK";
+ sata = <&sata>;
+ status = "disabled";
+ };
+
+ ata@63400000 {
+ compatible = "cortina,gemini-pata", "faraday,ftide010";
+ reg = <0x63400000 0x1000>;
+ interrupts = <5 IRQ_TYPE_EDGE_RISING>;
+ resets = <&syscon GEMINI_RESET_IDE>;
+ clocks = <&syscon GEMINI_CLK_GATE_IDE>;
+ clock-names = "PCLK";
+ sata = <&sata>;
+ status = "disabled";
+ };
+
+ dma-controller@67000000 {
+ compatible = "faraday,ftdma020", "arm,pl080", "arm,primecell";
+ /* Faraday Technology FTDMAC020 variant */
+ arm,primecell-periphid = <0x0003b080>;
+ reg = <0x67000000 0x1000>;
+ interrupts = <9 IRQ_TYPE_EDGE_RISING>;
+ resets = <&syscon GEMINI_RESET_DMAC>;
+ clocks = <&syscon GEMINI_CLK_AHB>;
+ clock-names = "apb_pclk";
+ /* Bus interface AHB1 (AHB0) is totally tilted */
+ lli-bus-interface-ahb2;
+ mem-bus-interface-ahb2;
+ memcpy-burst-size = <256>;
+ memcpy-bus-width = <32>;
+ #dma-cells = <2>;
+ };
};
};
diff --git a/arch/arm/boot/dts/imx23-sansa.dts b/arch/arm/boot/dts/imx23-sansa.dts
index 4ec32f4c7885..221fd55e967e 100644
--- a/arch/arm/boot/dts/imx23-sansa.dts
+++ b/arch/arm/boot/dts/imx23-sansa.dts
@@ -42,6 +42,7 @@
*/
/dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
#include "imx23.dtsi"
/ {
@@ -149,9 +150,8 @@
regulator-name = "vdd-touchpad0";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
- gpio = <&gpio0 26 0>;
+ gpio = <&gpio0 26 GPIO_ACTIVE_LOW>;
regulator-always-on;
- enable-active-low;
};
reg_vdd_tuner: regulator-vdd-tuner0 {
@@ -159,9 +159,8 @@
regulator-name = "vdd-tuner0";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
- gpio = <&gpio0 29 0>;
+ gpio = <&gpio0 29 GPIO_ACTIVE_LOW>;
regulator-always-on;
- enable-active-low;
};
backlight {
diff --git a/arch/arm/boot/dts/imx25-karo-tx25.dts b/arch/arm/boot/dts/imx25-karo-tx25.dts
index 9b31faa96377..30a62d4be8d9 100644
--- a/arch/arm/boot/dts/imx25-karo-tx25.dts
+++ b/arch/arm/boot/dts/imx25-karo-tx25.dts
@@ -97,7 +97,7 @@
&fec {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_fec>;
- phy-reset-gpios = <&gpio3 7 0>;
+ phy-reset-gpios = <&gpio3 7 GPIO_ACTIVE_LOW>;
phy-mode = "rmii";
phy-supply = <&reg_fec_phy>;
status = "okay";
diff --git a/arch/arm/boot/dts/imx25-pdk.dts b/arch/arm/boot/dts/imx25-pdk.dts
index d921dd2ed676..c52692821fb1 100644
--- a/arch/arm/boot/dts/imx25-pdk.dts
+++ b/arch/arm/boot/dts/imx25-pdk.dts
@@ -125,7 +125,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_fec>;
phy-supply = <&reg_fec_3v3>;
- phy-reset-gpios = <&gpio4 8 0>;
+ phy-reset-gpios = <&gpio4 8 GPIO_ACTIVE_LOW>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx25.dtsi b/arch/arm/boot/dts/imx25.dtsi
index 0cdf333336cd..09ce8b81fafa 100644
--- a/arch/arm/boot/dts/imx25.dtsi
+++ b/arch/arm/boot/dts/imx25.dtsi
@@ -9,6 +9,7 @@
* http://www.gnu.org/copyleft/gpl.html
*/
+#include <dt-bindings/gpio/gpio.h>
#include "imx25-pinfunc.h"
/ {
@@ -296,6 +297,7 @@
#address-cells = <1>;
#size-cells = <1>;
status = "disabled";
+ ranges;
adc: adc@50030800 {
compatible = "fsl,imx25-gcq";
@@ -450,6 +452,13 @@
interrupt-names = "scm", "smn";
};
+ rngb: rngb@53fb0000 {
+ compatible = "fsl,imx25-rngb";
+ reg = <0x53fb0000 0x4000>;
+ clocks = <&clks 109>;
+ interrupts = <22>;
+ };
+
esdhc1: esdhc@53fb4000 {
compatible = "fsl,imx25-esdhc";
reg = <0x53fb4000 0x4000>;
diff --git a/arch/arm/boot/dts/imx27-phytec-phycard-s-som.dtsi b/arch/arm/boot/dts/imx27-phytec-phycard-s-som.dtsi
index 4f3e0f473581..0b8490b21a38 100644
--- a/arch/arm/boot/dts/imx27-phytec-phycard-s-som.dtsi
+++ b/arch/arm/boot/dts/imx27-phytec-phycard-s-som.dtsi
@@ -40,7 +40,7 @@
status = "okay";
at24@52 {
- compatible = "at,24c32";
+ compatible = "atmel,24c32";
pagesize = <32>;
reg = <0x52>;
};
diff --git a/arch/arm/boot/dts/imx27-phytec-phycore-som.dtsi b/arch/arm/boot/dts/imx27-phytec-phycore-som.dtsi
index 82fec935ce83..c973c5d91875 100644
--- a/arch/arm/boot/dts/imx27-phytec-phycore-som.dtsi
+++ b/arch/arm/boot/dts/imx27-phytec-phycore-som.dtsi
@@ -193,7 +193,7 @@
status = "okay";
at24@52 {
- compatible = "at,24c32";
+ compatible = "atmel,24c32";
pagesize = <32>;
reg = <0x52>;
};
diff --git a/arch/arm/boot/dts/imx28-cfa10037.dts b/arch/arm/boot/dts/imx28-cfa10037.dts
index e5beaa58bb40..3d13b321d27b 100644
--- a/arch/arm/boot/dts/imx28-cfa10037.dts
+++ b/arch/arm/boot/dts/imx28-cfa10037.dts
@@ -64,7 +64,7 @@
pinctrl-names = "default";
pinctrl-0 = <&mac0_pins_a
&mac0_pins_cfa10037>;
- phy-reset-gpios = <&gpio2 21 0>;
+ phy-reset-gpios = <&gpio2 21 GPIO_ACTIVE_LOW>;
phy-reset-duration = <100>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx28-cfa10049.dts b/arch/arm/boot/dts/imx28-cfa10049.dts
index a9c347e48bcf..4cd52d53cf00 100644
--- a/arch/arm/boot/dts/imx28-cfa10049.dts
+++ b/arch/arm/boot/dts/imx28-cfa10049.dts
@@ -327,7 +327,7 @@
pinctrl-names = "default";
pinctrl-0 = <&mac0_pins_a
&mac0_pins_cfa10049>;
- phy-reset-gpios = <&gpio2 21 0>;
+ phy-reset-gpios = <&gpio2 21 GPIO_ACTIVE_LOW>;
phy-reset-duration = <100>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx28-cfa10057.dts b/arch/arm/boot/dts/imx28-cfa10057.dts
index 7a80bd686c40..c6067915b238 100644
--- a/arch/arm/boot/dts/imx28-cfa10057.dts
+++ b/arch/arm/boot/dts/imx28-cfa10057.dts
@@ -162,7 +162,7 @@
phy-mode = "rmii";
pinctrl-names = "default";
pinctrl-0 = <&mac0_pins_a>;
- phy-reset-gpios = <&gpio2 21 0>;
+ phy-reset-gpios = <&gpio2 21 GPIO_ACTIVE_LOW>;
phy-reset-duration = <100>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx28-cfa10058.dts b/arch/arm/boot/dts/imx28-cfa10058.dts
index f5c6dce34abe..70c7bb4a5a0e 100644
--- a/arch/arm/boot/dts/imx28-cfa10058.dts
+++ b/arch/arm/boot/dts/imx28-cfa10058.dts
@@ -129,7 +129,7 @@
phy-mode = "rmii";
pinctrl-names = "default";
pinctrl-0 = <&mac0_pins_a>;
- phy-reset-gpios = <&gpio2 21 0>;
+ phy-reset-gpios = <&gpio2 21 GPIO_ACTIVE_LOW>;
phy-reset-duration = <100>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx28-eukrea-mbmx287lc.dts b/arch/arm/boot/dts/imx28-eukrea-mbmx287lc.dts
index e773144e1e03..b61fd61eb1c7 100644
--- a/arch/arm/boot/dts/imx28-eukrea-mbmx287lc.dts
+++ b/arch/arm/boot/dts/imx28-eukrea-mbmx287lc.dts
@@ -31,7 +31,7 @@
phy-mode = "rmii";
pinctrl-names = "default";
pinctrl-0 = <&mac1_pins_a>;
- phy-reset-gpios = <&gpio3 27 GPIO_ACTIVE_HIGH>;
+ phy-reset-gpios = <&gpio3 27 GPIO_ACTIVE_LOW>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts
index a5ba669b4eaa..5309bb90d7d5 100644
--- a/arch/arm/boot/dts/imx28-evk.dts
+++ b/arch/arm/boot/dts/imx28-evk.dts
@@ -203,7 +203,7 @@
};
at24@51 {
- compatible = "at24,24c32";
+ compatible = "atmel,24c32";
pagesize = <32>;
reg = <0x51>;
};
@@ -262,7 +262,7 @@
pinctrl-names = "default";
pinctrl-0 = <&mac0_pins_a>;
phy-supply = <&reg_fec_3v3>;
- phy-reset-gpios = <&gpio4 13 0>;
+ phy-reset-gpios = <&gpio4 13 GPIO_ACTIVE_LOW>;
phy-reset-duration = <100>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx28-m28cu3.dts b/arch/arm/boot/dts/imx28-m28cu3.dts
index bb5329479c62..9d6c8fe28d74 100644
--- a/arch/arm/boot/dts/imx28-m28cu3.dts
+++ b/arch/arm/boot/dts/imx28-m28cu3.dts
@@ -188,7 +188,7 @@
phy-mode = "rmii";
pinctrl-names = "default";
pinctrl-0 = <&mac0_pins_a>;
- phy-reset-gpios = <&gpio4 13 0>;
+ phy-reset-gpios = <&gpio4 13 GPIO_ACTIVE_LOW>;
phy-reset-duration = <100>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx50-evk.dts b/arch/arm/boot/dts/imx50-evk.dts
index dba2d951aa15..98b5faa06e27 100644
--- a/arch/arm/boot/dts/imx50-evk.dts
+++ b/arch/arm/boot/dts/imx50-evk.dts
@@ -53,7 +53,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_fec>;
phy-mode = "rmii";
- phy-reset-gpios = <&gpio4 12 0>;
+ phy-reset-gpios = <&gpio4 12 GPIO_ACTIVE_LOW>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx50.dtsi b/arch/arm/boot/dts/imx50.dtsi
index 2a98afcd8a4e..3747d80104f4 100644
--- a/arch/arm/boot/dts/imx50.dtsi
+++ b/arch/arm/boot/dts/imx50.dtsi
@@ -12,6 +12,7 @@
*/
#include "imx50-pinfunc.h"
+#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/clock/imx5-clock.h>
/ {
diff --git a/arch/arm/boot/dts/imx51-apf51.dts b/arch/arm/boot/dts/imx51-apf51.dts
index e88b2a6be079..c83ac1600322 100644
--- a/arch/arm/boot/dts/imx51-apf51.dts
+++ b/arch/arm/boot/dts/imx51-apf51.dts
@@ -36,7 +36,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_fec>;
phy-mode = "mii";
- phy-reset-gpios = <&gpio3 0 GPIO_ACTIVE_HIGH>;
+ phy-reset-gpios = <&gpio3 0 GPIO_ACTIVE_LOW>;
phy-reset-duration = <1>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx53-cx9020.dts b/arch/arm/boot/dts/imx53-cx9020.dts
new file mode 100644
index 000000000000..4f54fd4418a3
--- /dev/null
+++ b/arch/arm/boot/dts/imx53-cx9020.dts
@@ -0,0 +1,297 @@
+/*
+ * Copyright 2017 Beckhoff Automation GmbH & Co. KG
+ * based on imx53-qsb.dts
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/dts-v1/;
+#include "imx53.dtsi"
+
+/ {
+ model = "Beckhoff CX9020 Embedded PC";
+ compatible = "bhf,cx9020", "fsl,imx53";
+
+ chosen {
+ stdout-path = &uart2;
+ };
+
+ memory {
+ reg = <0x70000000 0x20000000>,
+ <0xb0000000 0x20000000>;
+ };
+
+ display-0 {
+ #address-cells =<1>;
+ #size-cells = <0>;
+ compatible = "fsl,imx-parallel-display";
+ interface-pix-fmt = "rgb24";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ipu_disp0>;
+
+ port@0 {
+ reg = <0>;
+
+ display0_in: endpoint {
+ remote-endpoint = <&ipu_di0_disp0>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ display0_out: endpoint {
+ remote-endpoint = <&tfp410_in>;
+ };
+ };
+ };
+
+ dvi-connector {
+ compatible = "dvi-connector";
+ ddc-i2c-bus = <&i2c2>;
+ digital;
+
+ port {
+ dvi_connector_in: endpoint {
+ remote-endpoint = <&tfp410_out>;
+ };
+ };
+ };
+
+ dvi-converter {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "ti,tfp410";
+
+ port@0 {
+ reg = <0>;
+
+ tfp410_in: endpoint {
+ remote-endpoint = <&display0_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ tfp410_out: endpoint {
+ remote-endpoint = <&dvi_connector_in>;
+ };
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ pwr-r {
+ gpios = <&gpio3 22 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+
+ pwr-g {
+ gpios = <&gpio3 24 GPIO_ACTIVE_HIGH>;
+ default-state = "on";
+ };
+
+ pwr-b {
+ gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+
+ sd1-b {
+ linux,default-trigger = "mmc0";
+ gpios = <&gpio3 20 GPIO_ACTIVE_HIGH>;
+ };
+
+ sd2-b {
+ linux,default-trigger = "mmc1";
+ gpios = <&gpio3 17 GPIO_ACTIVE_HIGH>;
+ };
+ };
+
+ regulator-3p2v {
+ compatible = "regulator-fixed";
+ regulator-name = "3P2V";
+ regulator-min-microvolt = <3200000>;
+ regulator-max-microvolt = <3200000>;
+ regulator-always-on;
+ };
+
+ reg_usb_vbus: regulator-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usb_vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&gpio7 8 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+};
+
+&esdhc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_esdhc1>;
+ cd-gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
+ bus-width = <4>;
+ status = "okay";
+};
+
+&esdhc2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_esdhc2>;
+ cd-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
+ bus-width = <4>;
+ status = "okay";
+};
+
+&fec {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_fec>;
+ phy-mode = "rmii";
+ phy-reset-gpios = <&gpio7 6 GPIO_ACTIVE_HIGH>;
+ status = "okay";
+};
+
+&i2c2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c2>;
+ status = "okay";
+};
+
+&ipu_di0_disp0 {
+ remote-endpoint = <&display0_in>;
+};
+
+&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart2>;
+ fsl,dte-mode;
+ status = "okay";
+};
+
+&usbh1 {
+ vbus-supply = <&reg_usb_vbus>;
+ phy_type = "utmi";
+ status = "okay";
+};
+
+&usbotg {
+ dr_mode = "peripheral";
+ status = "okay";
+};
+
+&vpu {
+ status = "okay";
+};
+
+&iomuxc {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_hog>;
+
+ pinctrl_hog: hoggrp {
+ fsl,pins = <
+ MX53_PAD_GPIO_0__CCM_CLKO 0x1c4
+ MX53_PAD_GPIO_16__I2C3_SDA 0x1c4
+ MX53_PAD_EIM_D22__GPIO3_22 0x1c4
+ MX53_PAD_EIM_D23__GPIO3_23 0x1e4
+ MX53_PAD_EIM_D24__GPIO3_24 0x1e4
+ >;
+ };
+
+ pinctrl_esdhc1: esdhc1grp {
+ fsl,pins = <
+ MX53_PAD_SD1_DATA0__ESDHC1_DAT0 0x1d5
+ MX53_PAD_SD1_DATA1__ESDHC1_DAT1 0x1d5
+ MX53_PAD_SD1_DATA2__ESDHC1_DAT2 0x1d5
+ MX53_PAD_SD1_DATA3__ESDHC1_DAT3 0x1d5
+ MX53_PAD_SD1_CMD__ESDHC1_CMD 0x1d5
+ MX53_PAD_SD1_CLK__ESDHC1_CLK 0x1d5
+ MX53_PAD_GPIO_1__ESDHC1_CD 0x1c4
+ MX53_PAD_EIM_D17__GPIO3_17 0x1e4
+ MX53_PAD_GPIO_3__GPIO1_3 0x1c4
+ >;
+ };
+
+ pinctrl_esdhc2: esdhc2grp {
+ fsl,pins = <
+ MX53_PAD_SD2_DATA0__ESDHC2_DAT0 0x1d5
+ MX53_PAD_SD2_DATA1__ESDHC2_DAT1 0x1d5
+ MX53_PAD_SD2_DATA2__ESDHC2_DAT2 0x1d5
+ MX53_PAD_SD2_DATA3__ESDHC2_DAT3 0x1d5
+ MX53_PAD_SD2_CMD__ESDHC2_CMD 0x1d5
+ MX53_PAD_SD2_CLK__ESDHC2_CLK 0x1d5
+ MX53_PAD_GPIO_4__ESDHC2_CD 0x1e4
+ MX53_PAD_EIM_D20__GPIO3_20 0x1e4
+ MX53_PAD_GPIO_8__GPIO1_8 0x1c4
+ >;
+ };
+
+ pinctrl_fec: fecgrp {
+ fsl,pins = <
+ MX53_PAD_FEC_MDC__FEC_MDC 0x4
+ MX53_PAD_FEC_MDIO__FEC_MDIO 0x1fc
+ MX53_PAD_FEC_REF_CLK__FEC_TX_CLK 0x180
+ MX53_PAD_FEC_RX_ER__FEC_RX_ER 0x180
+ MX53_PAD_FEC_CRS_DV__FEC_RX_DV 0x180
+ MX53_PAD_FEC_RXD1__FEC_RDATA_1 0x180
+ MX53_PAD_FEC_RXD0__FEC_RDATA_0 0x180
+ MX53_PAD_FEC_TX_EN__FEC_TX_EN 0x4
+ MX53_PAD_FEC_TXD1__FEC_TDATA_1 0x4
+ MX53_PAD_FEC_TXD0__FEC_TDATA_0 0x4
+ >;
+ };
+
+ pinctrl_i2c2: i2c2grp {
+ fsl,pins = <
+ MX53_PAD_KEY_ROW3__I2C2_SDA 0xc0000000
+ MX53_PAD_KEY_COL3__I2C2_SCL 0xc0000000
+ >;
+ };
+
+ pinctrl_ipu_disp0: ipudisp0grp {
+ fsl,pins = <
+ MX53_PAD_DI0_DISP_CLK__IPU_DI0_DISP_CLK 0x5
+ MX53_PAD_DI0_PIN15__IPU_DI0_PIN15 0x5
+ MX53_PAD_DI0_PIN2__IPU_DI0_PIN2 0x5
+ MX53_PAD_DI0_PIN3__IPU_DI0_PIN3 0x5
+ MX53_PAD_DI0_PIN4__IPU_DI0_PIN4 0x5
+ MX53_PAD_DISP0_DAT0__IPU_DISP0_DAT_0 0x5
+ MX53_PAD_DISP0_DAT1__IPU_DISP0_DAT_1 0x5
+ MX53_PAD_DISP0_DAT2__IPU_DISP0_DAT_2 0x5
+ MX53_PAD_DISP0_DAT3__IPU_DISP0_DAT_3 0x5
+ MX53_PAD_DISP0_DAT4__IPU_DISP0_DAT_4 0x5
+ MX53_PAD_DISP0_DAT5__IPU_DISP0_DAT_5 0x5
+ MX53_PAD_DISP0_DAT6__IPU_DISP0_DAT_6 0x5
+ MX53_PAD_DISP0_DAT7__IPU_DISP0_DAT_7 0x5
+ MX53_PAD_DISP0_DAT8__IPU_DISP0_DAT_8 0x5
+ MX53_PAD_DISP0_DAT9__IPU_DISP0_DAT_9 0x5
+ MX53_PAD_DISP0_DAT10__IPU_DISP0_DAT_10 0x5
+ MX53_PAD_DISP0_DAT11__IPU_DISP0_DAT_11 0x5
+ MX53_PAD_DISP0_DAT12__IPU_DISP0_DAT_12 0x5
+ MX53_PAD_DISP0_DAT13__IPU_DISP0_DAT_13 0x5
+ MX53_PAD_DISP0_DAT14__IPU_DISP0_DAT_14 0x5
+ MX53_PAD_DISP0_DAT15__IPU_DISP0_DAT_15 0x5
+ MX53_PAD_DISP0_DAT16__IPU_DISP0_DAT_16 0x5
+ MX53_PAD_DISP0_DAT17__IPU_DISP0_DAT_17 0x5
+ MX53_PAD_DISP0_DAT18__IPU_DISP0_DAT_18 0x5
+ MX53_PAD_DISP0_DAT19__IPU_DISP0_DAT_19 0x5
+ MX53_PAD_DISP0_DAT20__IPU_DISP0_DAT_20 0x5
+ MX53_PAD_DISP0_DAT21__IPU_DISP0_DAT_21 0x5
+ MX53_PAD_DISP0_DAT22__IPU_DISP0_DAT_22 0x5
+ MX53_PAD_DISP0_DAT23__IPU_DISP0_DAT_23 0x5
+ >;
+ };
+
+ pinctrl_uart2: uart2grp {
+ fsl,pins = <
+ MX53_PAD_EIM_D26__UART2_RXD_MUX 0x1e4
+ MX53_PAD_EIM_D27__UART2_TXD_MUX 0x1e4
+ MX53_PAD_EIM_D28__UART2_RTS 0x1e4
+ MX53_PAD_EIM_D29__UART2_CTS 0x1e4
+ >;
+ };
+};
diff --git a/arch/arm/boot/dts/imx53-mba53.dts b/arch/arm/boot/dts/imx53-mba53.dts
index 2e44d2aba14e..df705ba48897 100644
--- a/arch/arm/boot/dts/imx53-mba53.dts
+++ b/arch/arm/boot/dts/imx53-mba53.dts
@@ -195,7 +195,7 @@
};
&fec {
- phy-reset-gpios = <&gpio7 6 0>;
+ phy-reset-gpios = <&gpio7 6 GPIO_ACTIVE_LOW>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx53-pinfunc.h b/arch/arm/boot/dts/imx53-pinfunc.h
index aec406bc65eb..59f9c29e3fe2 100644
--- a/arch/arm/boot/dts/imx53-pinfunc.h
+++ b/arch/arm/boot/dts/imx53-pinfunc.h
@@ -524,6 +524,7 @@
#define MX53_PAD_EIM_D25__UART1_DSR 0x140 0x488 0x000 0x7 0x0
#define MX53_PAD_EIM_D26__EMI_WEIM_D_26 0x144 0x48c 0x000 0x0 0x0
#define MX53_PAD_EIM_D26__GPIO3_26 0x144 0x48c 0x000 0x1 0x0
+#define MX53_PAD_EIM_D26__UART2_RXD_MUX 0x144 0x48c 0x880 0x2 0x0
#define MX53_PAD_EIM_D26__UART2_TXD_MUX 0x144 0x48c 0x000 0x2 0x0
#define MX53_PAD_EIM_D26__FIRI_RXD 0x144 0x48c 0x80c 0x3 0x0
#define MX53_PAD_EIM_D26__IPU_CSI0_D_1 0x144 0x48c 0x000 0x4 0x0
@@ -533,6 +534,7 @@
#define MX53_PAD_EIM_D27__EMI_WEIM_D_27 0x148 0x490 0x000 0x0 0x0
#define MX53_PAD_EIM_D27__GPIO3_27 0x148 0x490 0x000 0x1 0x0
#define MX53_PAD_EIM_D27__UART2_RXD_MUX 0x148 0x490 0x880 0x2 0x1
+#define MX53_PAD_EIM_D27__UART2_TXD_MUX 0x148 0x490 0x000 0x2 0x0
#define MX53_PAD_EIM_D27__FIRI_TXD 0x148 0x490 0x000 0x3 0x0
#define MX53_PAD_EIM_D27__IPU_CSI0_D_0 0x148 0x490 0x000 0x4 0x0
#define MX53_PAD_EIM_D27__IPU_DI1_PIN13 0x148 0x490 0x000 0x5 0x0
@@ -541,6 +543,7 @@
#define MX53_PAD_EIM_D28__EMI_WEIM_D_28 0x14c 0x494 0x000 0x0 0x0
#define MX53_PAD_EIM_D28__GPIO3_28 0x14c 0x494 0x000 0x1 0x0
#define MX53_PAD_EIM_D28__UART2_CTS 0x14c 0x494 0x000 0x2 0x0
+#define MX53_PAD_EIM_D28__UART2_RTS 0x14c 0x494 0x87c 0x2 0x0
#define MX53_PAD_EIM_D28__IPU_DISPB0_SER_DIO 0x14c 0x494 0x82c 0x3 0x1
#define MX53_PAD_EIM_D28__CSPI_MOSI 0x14c 0x494 0x788 0x4 0x1
#define MX53_PAD_EIM_D28__I2C1_SDA 0x14c 0x494 0x818 0x5 0x1
@@ -548,6 +551,7 @@
#define MX53_PAD_EIM_D28__IPU_DI0_PIN13 0x14c 0x494 0x000 0x7 0x0
#define MX53_PAD_EIM_D29__EMI_WEIM_D_29 0x150 0x498 0x000 0x0 0x0
#define MX53_PAD_EIM_D29__GPIO3_29 0x150 0x498 0x000 0x1 0x0
+#define MX53_PAD_EIM_D29__UART2_CTS 0x150 0x498 0x000 0x2 0x0
#define MX53_PAD_EIM_D29__UART2_RTS 0x150 0x498 0x87c 0x2 0x1
#define MX53_PAD_EIM_D29__IPU_DISPB0_SER_RS 0x150 0x498 0x000 0x3 0x0
#define MX53_PAD_EIM_D29__CSPI_SS0 0x150 0x498 0x78c 0x4 0x2
diff --git a/arch/arm/boot/dts/imx53-qsb-common.dtsi b/arch/arm/boot/dts/imx53-qsb-common.dtsi
index 40b3e31935d0..683dcbe27cbd 100644
--- a/arch/arm/boot/dts/imx53-qsb-common.dtsi
+++ b/arch/arm/boot/dts/imx53-qsb-common.dtsi
@@ -344,7 +344,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_fec>;
phy-mode = "rmii";
- phy-reset-gpios = <&gpio7 6 0>;
+ phy-reset-gpios = <&gpio7 6 GPIO_ACTIVE_LOW>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx53-smd.dts b/arch/arm/boot/dts/imx53-smd.dts
index 472f6f0f55b3..33cb64fc8372 100644
--- a/arch/arm/boot/dts/imx53-smd.dts
+++ b/arch/arm/boot/dts/imx53-smd.dts
@@ -273,6 +273,6 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_fec>;
phy-mode = "rmii";
- phy-reset-gpios = <&gpio7 6 0>;
+ phy-reset-gpios = <&gpio7 6 GPIO_ACTIVE_LOW>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx53-tqma53.dtsi b/arch/arm/boot/dts/imx53-tqma53.dtsi
index 85972f2201c2..eecdc1c55eef 100644
--- a/arch/arm/boot/dts/imx53-tqma53.dtsi
+++ b/arch/arm/boot/dts/imx53-tqma53.dtsi
@@ -272,7 +272,7 @@
};
eeprom: 24c64@50 {
- compatible = "at,24c64";
+ compatible = "atmel,24c64";
pagesize = <32>;
reg = <0x50>;
};
diff --git a/arch/arm/boot/dts/imx53-tx53.dtsi b/arch/arm/boot/dts/imx53-tx53.dtsi
index 3a3220141988..7807c1fa1101 100644
--- a/arch/arm/boot/dts/imx53-tx53.dtsi
+++ b/arch/arm/boot/dts/imx53-tx53.dtsi
@@ -201,7 +201,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_fec>;
phy-mode = "rmii";
- phy-reset-gpios = <&gpio7 6 GPIO_ACTIVE_HIGH>;
+ phy-reset-gpios = <&gpio7 6 GPIO_ACTIVE_LOW>;
phy-handle = <&phy0>;
mac-address = [000000000000]; /* placeholder; will be overwritten by bootloader */
status = "okay";
diff --git a/arch/arm/boot/dts/imx53-voipac-dmm-668.dtsi b/arch/arm/boot/dts/imx53-voipac-dmm-668.dtsi
index 524192cf6a0f..df8dafe2564d 100644
--- a/arch/arm/boot/dts/imx53-voipac-dmm-668.dtsi
+++ b/arch/arm/boot/dts/imx53-voipac-dmm-668.dtsi
@@ -137,7 +137,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_fec>;
phy-mode = "rmii";
- phy-reset-gpios = <&gpio4 2 0>;
+ phy-reset-gpios = <&gpio4 2 GPIO_ACTIVE_LOW>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx53.dtsi b/arch/arm/boot/dts/imx53.dtsi
index 2e516f4985e4..8bf0d89cdd35 100644
--- a/arch/arm/boot/dts/imx53.dtsi
+++ b/arch/arm/boot/dts/imx53.dtsi
@@ -433,6 +433,15 @@
clock-names = "ipg", "per";
};
+ srtc: srtc@53fa4000 {
+ compatible = "fsl,imx53-rtc", "fsl,imx25-rtc";
+ reg = <0x53fa4000 0x4000>;
+ interrupts = <24>;
+ interrupt-parent = <&tzic>;
+ clocks = <&clks IMX5_CLK_SRTC_GATE>;
+ clock-names = "ipg";
+ };
+
iomuxc: iomuxc@53fa8000 {
compatible = "fsl,imx53-iomuxc";
reg = <0x53fa8000 0x4000>;
diff --git a/arch/arm/boot/dts/imx6dl-gw52xx.dts b/arch/arm/boot/dts/imx6dl-gw52xx.dts
index a2e0b73fdd4a..5f9f8948100d 100644
--- a/arch/arm/boot/dts/imx6dl-gw52xx.dts
+++ b/arch/arm/boot/dts/imx6dl-gw52xx.dts
@@ -17,3 +17,61 @@
model = "Gateworks Ventana i.MX6 DualLite/Solo GW52XX";
compatible = "gw,imx6dl-gw52xx", "gw,ventana", "fsl,imx6dl";
};
+
+&i2c3 {
+ adv7180: camera@20 {
+ compatible = "adi,adv7180";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_adv7180>;
+ reg = <0x20>;
+ powerdown-gpios = <&gpio3 31 GPIO_ACTIVE_LOW>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <30 IRQ_TYPE_LEVEL_LOW>;
+
+ port {
+ adv7180_to_ipu1_csi1_mux: endpoint {
+ remote-endpoint = <&ipu1_csi1_mux_from_parallel_sensor>;
+ bus-width = <8>;
+ };
+ };
+ };
+};
+
+&ipu1_csi1_from_ipu1_csi1_mux {
+ bus-width = <8>;
+};
+
+&ipu1_csi1_mux_from_parallel_sensor {
+ remote-endpoint = <&adv7180_to_ipu1_csi1_mux>;
+ bus-width = <8>;
+};
+
+&ipu1_csi1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ipu1_csi1>;
+};
+
+&iomuxc {
+ pinctrl_adv7180: adv7180grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_D30__GPIO3_IO30 0x0001b0b0
+ MX6QDL_PAD_EIM_D31__GPIO3_IO31 0x4001b0b0
+ >;
+ };
+
+ pinctrl_ipu1_csi1: ipu1_csi1grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_EB2__IPU1_CSI1_DATA19 0x1b0b0
+ MX6QDL_PAD_EIM_D16__IPU1_CSI1_DATA18 0x1b0b0
+ MX6QDL_PAD_EIM_D18__IPU1_CSI1_DATA17 0x1b0b0
+ MX6QDL_PAD_EIM_D19__IPU1_CSI1_DATA16 0x1b0b0
+ MX6QDL_PAD_EIM_D20__IPU1_CSI1_DATA15 0x1b0b0
+ MX6QDL_PAD_EIM_D26__IPU1_CSI1_DATA14 0x1b0b0
+ MX6QDL_PAD_EIM_D27__IPU1_CSI1_DATA13 0x1b0b0
+ MX6QDL_PAD_EIM_A17__IPU1_CSI1_DATA12 0x1b0b0
+ MX6QDL_PAD_EIM_D29__IPU1_CSI1_VSYNC 0x1b0b0
+ MX6QDL_PAD_EIM_EB3__IPU1_CSI1_HSYNC 0x1b0b0
+ MX6QDL_PAD_EIM_A16__IPU1_CSI1_PIXCLK 0x1b0b0
+ >;
+ };
+};
diff --git a/arch/arm/boot/dts/imx6dl-gw53xx.dts b/arch/arm/boot/dts/imx6dl-gw53xx.dts
index 6844b708d2f8..9bfc620d37bd 100644
--- a/arch/arm/boot/dts/imx6dl-gw53xx.dts
+++ b/arch/arm/boot/dts/imx6dl-gw53xx.dts
@@ -17,3 +17,61 @@
model = "Gateworks Ventana i.MX6 DualLite/Solo GW53XX";
compatible = "gw,imx6dl-gw53xx", "gw,ventana", "fsl,imx6dl";
};
+
+&i2c3 {
+ adv7180: camera@20 {
+ compatible = "adi,adv7180";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_adv7180>;
+ reg = <0x20>;
+ powerdown-gpios = <&gpio3 31 GPIO_ACTIVE_LOW>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <30 IRQ_TYPE_LEVEL_LOW>;
+
+ port {
+ adv7180_to_ipu1_csi1_mux: endpoint {
+ remote-endpoint = <&ipu1_csi1_mux_from_parallel_sensor>;
+ bus-width = <8>;
+ };
+ };
+ };
+};
+
+&ipu1_csi1_from_ipu1_csi1_mux {
+ bus-width = <8>;
+};
+
+&ipu1_csi1_mux_from_parallel_sensor {
+ remote-endpoint = <&adv7180_to_ipu1_csi1_mux>;
+ bus-width = <8>;
+};
+
+&ipu1_csi1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ipu1_csi1>;
+};
+
+&iomuxc {
+ pinctrl_adv7180: adv7180grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_D30__GPIO3_IO30 0x0001b0b0
+ MX6QDL_PAD_EIM_D31__GPIO3_IO31 0x4001b0b0
+ >;
+ };
+
+ pinctrl_ipu1_csi1: ipu1_csi1grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_EB2__IPU1_CSI1_DATA19 0x1b0b0
+ MX6QDL_PAD_EIM_D16__IPU1_CSI1_DATA18 0x1b0b0
+ MX6QDL_PAD_EIM_D18__IPU1_CSI1_DATA17 0x1b0b0
+ MX6QDL_PAD_EIM_D19__IPU1_CSI1_DATA16 0x1b0b0
+ MX6QDL_PAD_EIM_D20__IPU1_CSI1_DATA15 0x1b0b0
+ MX6QDL_PAD_EIM_D26__IPU1_CSI1_DATA14 0x1b0b0
+ MX6QDL_PAD_EIM_D27__IPU1_CSI1_DATA13 0x1b0b0
+ MX6QDL_PAD_EIM_A17__IPU1_CSI1_DATA12 0x1b0b0
+ MX6QDL_PAD_EIM_D29__IPU1_CSI1_VSYNC 0x1b0b0
+ MX6QDL_PAD_EIM_EB3__IPU1_CSI1_HSYNC 0x1b0b0
+ MX6QDL_PAD_EIM_A16__IPU1_CSI1_PIXCLK 0x1b0b0
+ >;
+ };
+};
diff --git a/arch/arm/boot/dts/imx6dl-gw54xx.dts b/arch/arm/boot/dts/imx6dl-gw54xx.dts
index be915412f852..b909bdf9a2ef 100644
--- a/arch/arm/boot/dts/imx6dl-gw54xx.dts
+++ b/arch/arm/boot/dts/imx6dl-gw54xx.dts
@@ -17,3 +17,61 @@
model = "Gateworks Ventana i.MX6 DualLite/Solo GW54XX";
compatible = "gw,imx6dl-gw54xx", "gw,ventana", "fsl,imx6dl";
};
+
+&i2c3 {
+ adv7180: camera@20 {
+ compatible = "adi,adv7180";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_adv7180>;
+ reg = <0x20>;
+ powerdown-gpios = <&gpio3 31 GPIO_ACTIVE_LOW>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <30 IRQ_TYPE_LEVEL_LOW>;
+
+ port {
+ adv7180_to_ipu1_csi1_mux: endpoint {
+ remote-endpoint = <&ipu1_csi1_mux_from_parallel_sensor>;
+ bus-width = <8>;
+ };
+ };
+ };
+};
+
+&ipu1_csi1_from_ipu1_csi1_mux {
+ bus-width = <8>;
+};
+
+&ipu1_csi1_mux_from_parallel_sensor {
+ remote-endpoint = <&adv7180_to_ipu1_csi1_mux>;
+ bus-width = <8>;
+};
+
+&ipu1_csi1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ipu1_csi1>;
+};
+
+&iomuxc {
+ pinctrl_adv7180: adv7180grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_D30__GPIO3_IO30 0x0001b0b0
+ MX6QDL_PAD_EIM_D31__GPIO3_IO31 0x4001b0b0
+ >;
+ };
+
+ pinctrl_ipu1_csi1: ipu1_csi1grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_EB2__IPU1_CSI1_DATA19 0x1b0b0
+ MX6QDL_PAD_EIM_D16__IPU1_CSI1_DATA18 0x1b0b0
+ MX6QDL_PAD_EIM_D18__IPU1_CSI1_DATA17 0x1b0b0
+ MX6QDL_PAD_EIM_D19__IPU1_CSI1_DATA16 0x1b0b0
+ MX6QDL_PAD_EIM_D20__IPU1_CSI1_DATA15 0x1b0b0
+ MX6QDL_PAD_EIM_D26__IPU1_CSI1_DATA14 0x1b0b0
+ MX6QDL_PAD_EIM_D27__IPU1_CSI1_DATA13 0x1b0b0
+ MX6QDL_PAD_EIM_A17__IPU1_CSI1_DATA12 0x1b0b0
+ MX6QDL_PAD_EIM_D29__IPU1_CSI1_VSYNC 0x1b0b0
+ MX6QDL_PAD_EIM_EB3__IPU1_CSI1_HSYNC 0x1b0b0
+ MX6QDL_PAD_EIM_A16__IPU1_CSI1_PIXCLK 0x1b0b0
+ >;
+ };
+};
diff --git a/arch/arm/boot/dts/imx6dl-gw560x.dts b/arch/arm/boot/dts/imx6dl-gw560x.dts
new file mode 100644
index 000000000000..21bdfaf8df53
--- /dev/null
+++ b/arch/arm/boot/dts/imx6dl-gw560x.dts
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2017 Gateworks Corporation
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this file; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include "imx6dl.dtsi"
+#include "imx6qdl-gw560x.dtsi"
+
+/ {
+ model = "Gateworks Ventana i.MX6 DualLite/Solo GW560X";
+ compatible = "gw,imx6dl-gw560x", "gw,ventana", "fsl,imx6dl";
+};
diff --git a/arch/arm/boot/dts/imx6dl-riotboard.dts b/arch/arm/boot/dts/imx6dl-riotboard.dts
index 2cb72824e800..275c6c05219d 100644
--- a/arch/arm/boot/dts/imx6dl-riotboard.dts
+++ b/arch/arm/boot/dts/imx6dl-riotboard.dts
@@ -94,13 +94,58 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet>;
phy-mode = "rgmii";
- phy-reset-gpios = <&gpio3 31 0>;
+ phy-reset-gpios = <&gpio3 31 GPIO_ACTIVE_LOW>;
interrupts-extended = <&gpio1 6 IRQ_TYPE_LEVEL_HIGH>,
<&intc 0 119 IRQ_TYPE_LEVEL_HIGH>;
fsl,err006687-workaround-present;
status = "okay";
};
+&gpio1 {
+ gpio-line-names =
+ "", "", "SD2_WP", "", "SD2_CD", "I2C3_SCL",
+ "I2C3_SDA", "I2C4_SCL",
+ "I2C4_SDA", "", "", "", "", "", "", "",
+ "", "PWM3", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "";
+};
+
+&gpio3 {
+ gpio-line-names =
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "USB_OTG_VBUS", "",
+ "UART3_TXD", "UART3_RXD", "", "", "EIM_D28", "", "", "";
+};
+
+&gpio4 {
+ gpio-line-names =
+ "", "", "", "", "", "", "UART4_TXD", "UART4_RXD",
+ "UART5_TXD", "UART5_RXD", "", "", "", "", "", "",
+ "GPIO4_16", "GPIO4_17", "GPIO4_18", "GPIO4_19", "",
+ "CSPI3_CLK", "CSPI3_MOSI", "CSPI3_MISO",
+ "CSPI3_CS0", "CSPI3_CS1", "GPIO4_26", "GPIO4_27",
+ "CSPI3_RDY", "PWM1", "PWM2", "GPIO4_31";
+};
+
+&gpio5 {
+ gpio-line-names =
+ "", "", "EIM_A25", "", "", "GPIO5_05", "GPIO5_06",
+ "GPIO5_07",
+ "GPIO5_08", "CSPI2_CS1", "CSPI2_MOSI", "CSPI2_MISO",
+ "CSPI2_CS0", "CSPI2_CLK", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "";
+};
+
+&gpio7 {
+ gpio-line-names =
+ "SD3_CD", "SD3_WP", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "";
+};
+
&hdmi {
ddc-i2c-bus = <&i2c2>;
status = "okay";
diff --git a/arch/arm/boot/dts/imx6dl-sabrelite.dts b/arch/arm/boot/dts/imx6dl-sabrelite.dts
index 2f904527a097..33040761b253 100644
--- a/arch/arm/boot/dts/imx6dl-sabrelite.dts
+++ b/arch/arm/boot/dts/imx6dl-sabrelite.dts
@@ -48,3 +48,8 @@
model = "Freescale i.MX6 DualLite SABRE Lite Board";
compatible = "fsl,imx6dl-sabrelite", "fsl,imx6dl";
};
+
+&ipu1_csi1_from_ipu1_csi1_mux {
+ clock-lanes = <0>;
+ data-lanes = <1 2>;
+};
diff --git a/arch/arm/boot/dts/imx6dl-sabresd.dts b/arch/arm/boot/dts/imx6dl-sabresd.dts
index 1e45f2f9d0b6..9607afe088fc 100644
--- a/arch/arm/boot/dts/imx6dl-sabresd.dts
+++ b/arch/arm/boot/dts/imx6dl-sabresd.dts
@@ -15,3 +15,8 @@
model = "Freescale i.MX6 DualLite SABRE Smart Device Board";
compatible = "fsl,imx6dl-sabresd", "fsl,imx6dl";
};
+
+&ipu1_csi1_from_ipu1_csi1_mux {
+ clock-lanes = <0>;
+ data-lanes = <1 2>;
+};
diff --git a/arch/arm/boot/dts/imx6dl.dtsi b/arch/arm/boot/dts/imx6dl.dtsi
index 7aa120fbdc71..8475e6cc59ac 100644
--- a/arch/arm/boot/dts/imx6dl.dtsi
+++ b/arch/arm/boot/dts/imx6dl.dtsi
@@ -100,6 +100,11 @@
};
};
+ capture-subsystem {
+ compatible = "fsl,imx-capture-subsystem";
+ ports = <&ipu1_csi0>, <&ipu1_csi1>;
+ };
+
display-subsystem {
compatible = "fsl,imx-display-subsystem";
ports = <&ipu1_di0>, <&ipu1_di1>;
@@ -164,6 +169,116 @@
<&iomuxc 9 207 1>, <&iomuxc 10 206 1>, <&iomuxc 11 133 3>;
};
+&gpr {
+ ipu1_csi0_mux: ipu1_csi0_mux@34 {
+ compatible = "video-mux";
+ mux-controls = <&mux 0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ ipu1_csi0_mux_from_mipi_vc0: endpoint {
+ remote-endpoint = <&mipi_vc0_to_ipu1_csi0_mux>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ ipu1_csi0_mux_from_mipi_vc1: endpoint {
+ remote-endpoint = <&mipi_vc1_to_ipu1_csi0_mux>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ ipu1_csi0_mux_from_mipi_vc2: endpoint {
+ remote-endpoint = <&mipi_vc2_to_ipu1_csi0_mux>;
+ };
+ };
+
+ port@3 {
+ reg = <3>;
+
+ ipu1_csi0_mux_from_mipi_vc3: endpoint {
+ remote-endpoint = <&mipi_vc3_to_ipu1_csi0_mux>;
+ };
+ };
+
+ port@4 {
+ reg = <4>;
+
+ ipu1_csi0_mux_from_parallel_sensor: endpoint {
+ };
+ };
+
+ port@5 {
+ reg = <5>;
+
+ ipu1_csi0_mux_to_ipu1_csi0: endpoint {
+ remote-endpoint = <&ipu1_csi0_from_ipu1_csi0_mux>;
+ };
+ };
+ };
+
+ ipu1_csi1_mux: ipu1_csi1_mux@34 {
+ compatible = "video-mux";
+ mux-controls = <&mux 1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ ipu1_csi1_mux_from_mipi_vc0: endpoint {
+ remote-endpoint = <&mipi_vc0_to_ipu1_csi1_mux>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ ipu1_csi1_mux_from_mipi_vc1: endpoint {
+ remote-endpoint = <&mipi_vc1_to_ipu1_csi1_mux>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ ipu1_csi1_mux_from_mipi_vc2: endpoint {
+ remote-endpoint = <&mipi_vc2_to_ipu1_csi1_mux>;
+ };
+ };
+
+ port@3 {
+ reg = <3>;
+
+ ipu1_csi1_mux_from_mipi_vc3: endpoint {
+ remote-endpoint = <&mipi_vc3_to_ipu1_csi1_mux>;
+ };
+ };
+
+ port@4 {
+ reg = <4>;
+
+ ipu1_csi1_mux_from_parallel_sensor: endpoint {
+ };
+ };
+
+ port@5 {
+ reg = <5>;
+
+ ipu1_csi1_mux_to_ipu1_csi1: endpoint {
+ remote-endpoint = <&ipu1_csi1_from_ipu1_csi1_mux>;
+ };
+ };
+ };
+};
+
&gpt {
compatible = "fsl,imx6dl-gpt";
};
@@ -172,6 +287,12 @@
compatible = "fsl,imx6dl-hdmi";
};
+&ipu1_csi1 {
+ ipu1_csi1_from_ipu1_csi1_mux: endpoint {
+ remote-endpoint = <&ipu1_csi1_mux_to_ipu1_csi1>;
+ };
+};
+
&ldb {
clocks = <&clks IMX6QDL_CLK_LDB_DI0_SEL>, <&clks IMX6QDL_CLK_LDB_DI1_SEL>,
<&clks IMX6QDL_CLK_IPU1_DI0_SEL>, <&clks IMX6QDL_CLK_IPU1_DI1_SEL>,
@@ -181,6 +302,74 @@
"di0", "di1";
};
+&mipi_csi {
+ port@1 {
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mipi_vc0_to_ipu1_csi0_mux: endpoint@0 {
+ remote-endpoint = <&ipu1_csi0_mux_from_mipi_vc0>;
+ };
+
+ mipi_vc0_to_ipu1_csi1_mux: endpoint@1 {
+ remote-endpoint = <&ipu1_csi1_mux_from_mipi_vc0>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mipi_vc1_to_ipu1_csi0_mux: endpoint@0 {
+ remote-endpoint = <&ipu1_csi0_mux_from_mipi_vc1>;
+ };
+
+ mipi_vc1_to_ipu1_csi1_mux: endpoint@1 {
+ remote-endpoint = <&ipu1_csi1_mux_from_mipi_vc1>;
+ };
+ };
+
+ port@3 {
+ reg = <3>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mipi_vc2_to_ipu1_csi0_mux: endpoint@0 {
+ remote-endpoint = <&ipu1_csi0_mux_from_mipi_vc2>;
+ };
+
+ mipi_vc2_to_ipu1_csi1_mux: endpoint@1 {
+ remote-endpoint = <&ipu1_csi1_mux_from_mipi_vc2>;
+ };
+ };
+
+ port@4 {
+ reg = <4>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mipi_vc3_to_ipu1_csi0_mux: endpoint@0 {
+ remote-endpoint = <&ipu1_csi0_mux_from_mipi_vc3>;
+ };
+
+ mipi_vc3_to_ipu1_csi1_mux: endpoint@1 {
+ remote-endpoint = <&ipu1_csi1_mux_from_mipi_vc3>;
+ };
+ };
+};
+
+&mux {
+ mux-reg-masks = <0x34 0x00000007>, /* IPU_CSI0_MUX */
+ <0x34 0x00000038>, /* IPU_CSI1_MUX */
+ <0x0c 0x0000000c>, /* HDMI_MUX_CTL */
+ <0x0c 0x000000c0>, /* LVDS0_MUX_CTL */
+ <0x0c 0x00000300>, /* LVDS1_MUX_CTL */
+ <0x28 0x00000003>, /* DCIC1_MUX_CTL */
+ <0x28 0x0000000c>; /* DCIC2_MUX_CTL */
+};
+
&vpu {
compatible = "fsl,imx6dl-vpu", "cnm,coda960";
};
diff --git a/arch/arm/boot/dts/imx6q-apalis-eval.dts b/arch/arm/boot/dts/imx6q-apalis-eval.dts
new file mode 100644
index 000000000000..4bbfe3d61027
--- /dev/null
+++ b/arch/arm/boot/dts/imx6q-apalis-eval.dts
@@ -0,0 +1,278 @@
+/*
+ * Copyright 2014-2017 Toradex AG
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright 2011 Linaro Ltd.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include "imx6q.dtsi"
+#include "imx6qdl-apalis.dtsi"
+
+/ {
+ model = "Toradex Apalis iMX6Q/D Module on Apalis Evaluation Board";
+ compatible = "toradex,apalis_imx6q-eval", "toradex,apalis_imx6q",
+ "fsl,imx6q";
+
+ aliases {
+ i2c0 = &i2c1;
+ i2c1 = &i2c3;
+ i2c2 = &i2c2;
+ rtc0 = &rtc_i2c;
+ rtc1 = &snvs_rtc;
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpio_keys>;
+
+ wakeup {
+ label = "Wake-Up";
+ gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
+ linux,code = <KEY_WAKEUP>;
+ debounce-interval = <10>;
+ wakeup-source;
+ };
+ };
+
+ lcd_display: display@di0 {
+ compatible = "fsl,imx-parallel-display";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interface-pix-fmt = "rgb24";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ipu1_lcdif>;
+ status = "okay";
+
+ port@0 {
+ reg = <0>;
+
+ lcd_display_in: endpoint {
+ remote-endpoint = <&ipu1_di1_disp1>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ lcd_display_out: endpoint {
+ remote-endpoint = <&lcd_panel_in>;
+ };
+ };
+ };
+
+ panel: panel {
+ /*
+ * edt,et057090dhu: EDT 5.7" LCD TFT
+ * edt,et070080dh6: EDT 7.0" LCD TFT
+ */
+ compatible = "edt,et057090dhu";
+ backlight = <&backlight>;
+
+ port {
+ lcd_panel_in: endpoint {
+ remote-endpoint = <&lcd_display_out>;
+ };
+ };
+ };
+
+ reg_pcie_switch: regulator-pcie-switch {
+ compatible = "regulator-fixed";
+ regulator-name = "pcie_switch";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ gpio = <&gpio1 2 GPIO_ACTIVE_HIGH>;
+ startup-delay-us = <100000>;
+ enable-active-high;
+ status = "okay";
+ };
+};
+
+&backlight {
+ brightness-levels = <0 127 191 223 239 247 251 255>;
+ default-brightness-level = <1>;
+ status = "okay";
+};
+
+&can1 {
+ status = "okay";
+};
+
+&can2 {
+ status = "okay";
+};
+
+&hdmi {
+ status = "okay";
+};
+
+/* I2C1_SDA/SCL on MXM3 209/211 (e.g. RTC on carrier board) */
+&i2c1 {
+ status = "okay";
+
+ pcie-switch@58 {
+ compatible = "plx,pex8605";
+ reg = <0x58>;
+ };
+
+ /* M41T0M6 real time clock on carrier board */
+ rtc_i2c: rtc@68 {
+ compatible = "st,m41t00";
+ reg = <0x68>;
+ };
+};
+
+/*
+ * I2C3_SDA/SCL (CAM) on MXM3 pin 201/203 (e.g. camera sensor on carrier
+ * board)
+ */
+&i2c3 {
+ status = "okay";
+};
+
+&ipu1_di1_disp1 {
+ remote-endpoint = <&lcd_display_in>;
+};
+
+&ldb {
+ status = "okay";
+};
+
+&pcie {
+ /* active-high meaning opposite of regular PERST# active-low polarity */
+ reset-gpio = <&gpio1 28 GPIO_ACTIVE_HIGH>;
+ reset-gpio-active-high;
+ vpcie-supply = <&reg_pcie_switch>;
+ status = "okay";
+};
+
+&pwm1 {
+ status = "okay";
+};
+
+&pwm2 {
+ status = "okay";
+};
+
+&pwm3 {
+ status = "okay";
+};
+
+&pwm4 {
+ status = "okay";
+};
+
+&reg_usb_otg_vbus {
+ status = "okay";
+};
+
+&reg_usb_host_vbus {
+ status = "okay";
+};
+
+&sata {
+ status = "okay";
+};
+
+&sound_spdif {
+ status = "okay";
+};
+
+&spdif {
+ status = "okay";
+};
+
+&uart1 {
+ status = "okay";
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&uart4 {
+ status = "okay";
+};
+
+&uart5 {
+ status = "okay";
+};
+
+&usbh1 {
+ vbus-supply = <&reg_usb_host_vbus>;
+ status = "okay";
+};
+
+&usbotg {
+ vbus-supply = <&reg_usb_otg_vbus>;
+ status = "okay";
+};
+
+/* MMC1 */
+&usdhc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usdhc1_4bit &pinctrl_usdhc1_8bit &pinctrl_mmc_cd>;
+ cd-gpios = <&gpio4 20 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+/* SD1 */
+&usdhc2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usdhc2 &pinctrl_sd_cd>;
+ cd-gpios = <&gpio6 14 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+&iomuxc {
+ /*
+ * Mux the Apalis GPIOs
+ */
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_apalis_gpio1 &pinctrl_apalis_gpio2
+ &pinctrl_apalis_gpio3 &pinctrl_apalis_gpio4
+ &pinctrl_apalis_gpio5 &pinctrl_apalis_gpio6
+ &pinctrl_apalis_gpio7 &pinctrl_apalis_gpio8
+ >;
+};
diff --git a/arch/arm/boot/dts/imx6q-apalis-ixora-v1.1.dts b/arch/arm/boot/dts/imx6q-apalis-ixora-v1.1.dts
new file mode 100644
index 000000000000..a35c7a54ad3b
--- /dev/null
+++ b/arch/arm/boot/dts/imx6q-apalis-ixora-v1.1.dts
@@ -0,0 +1,291 @@
+/*
+ * Copyright 2014-2017 Toradex AG
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright 2011 Linaro Ltd.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include "imx6q.dtsi"
+#include "imx6qdl-apalis.dtsi"
+
+/ {
+ model = "Toradex Apalis iMX6Q/D Module on Ixora Carrier Board V1.1";
+ compatible = "toradex,apalis_imx6q-ixora-v1.1",
+ "toradex,apalis_imx6q-ixora", "toradex,apalis_imx6q",
+ "fsl,imx6q";
+
+ aliases {
+ i2c0 = &i2c1;
+ i2c1 = &i2c3;
+ i2c2 = &i2c2;
+ rtc0 = &rtc_i2c;
+ rtc1 = &snvs_rtc;
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpio_keys>;
+
+ wakeup {
+ label = "Wake-Up";
+ gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
+ linux,code = <KEY_WAKEUP>;
+ debounce-interval = <10>;
+ wakeup-source;
+ };
+ };
+
+ lcd_display: display@di0 {
+ compatible = "fsl,imx-parallel-display";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interface-pix-fmt = "rgb24";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ipu1_lcdif>;
+ status = "okay";
+
+ port@0 {
+ reg = <0>;
+
+ lcd_display_in: endpoint {
+ remote-endpoint = <&ipu1_di1_disp1>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ lcd_display_out: endpoint {
+ remote-endpoint = <&lcd_panel_in>;
+ };
+ };
+ };
+
+ panel: panel {
+ /*
+ * edt,et057090dhu: EDT 5.7" LCD TFT
+ * edt,et070080dh6: EDT 7.0" LCD TFT
+ */
+ compatible = "edt,et057090dhu";
+ backlight = <&backlight>;
+
+ port {
+ lcd_panel_in: endpoint {
+ remote-endpoint = <&lcd_display_out>;
+ };
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_leds_ixora>;
+
+ led4-green {
+ label = "LED_4_GREEN";
+ gpios = <&gpio1 14 GPIO_ACTIVE_HIGH>;
+ };
+
+ led4-red {
+ label = "LED_4_RED";
+ gpios = <&gpio1 12 GPIO_ACTIVE_HIGH>;
+ };
+
+ led5-green {
+ label = "LED_5_GREEN";
+ gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
+ };
+
+ led5-red {
+ label = "LED_5_RED";
+ gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>;
+ };
+ };
+};
+
+&backlight {
+ brightness-levels = <0 127 191 223 239 247 251 255>;
+ default-brightness-level = <1>;
+ status = "okay";
+};
+
+&can1 {
+ status = "okay";
+};
+
+&can2 {
+ status = "okay";
+};
+
+&hdmi {
+ status = "okay";
+};
+
+/* I2C1_SDA/SCL on MXM3 209/211 (e.g. RTC on carrier board) */
+&i2c1 {
+ status = "okay";
+
+ /* M41T0M6 real time clock on carrier board */
+ rtc_i2c: rtc@68 {
+ compatible = "st,m41t00";
+ reg = <0x68>;
+ };
+};
+
+/*
+ * I2C3_SDA/SCL (CAM) on MXM3 pin 201/203 (e.g. camera sensor on carrier
+ * board)
+ */
+&i2c3 {
+ status = "okay";
+};
+
+&ipu1_di1_disp1 {
+ remote-endpoint = <&lcd_display_in>;
+};
+
+&ldb {
+ status = "okay";
+};
+
+&pcie {
+ /* active-high meaning opposite of regular PERST# active-low polarity */
+ reset-gpio = <&gpio1 28 GPIO_ACTIVE_HIGH>;
+ reset-gpio-active-high;
+ status = "okay";
+};
+
+&pwm1 {
+ status = "okay";
+};
+
+&pwm2 {
+ status = "okay";
+};
+
+&pwm3 {
+ status = "okay";
+};
+
+&pwm4 {
+ status = "okay";
+};
+
+&reg_usb_otg_vbus {
+ status = "okay";
+};
+
+&reg_usb_host_vbus {
+ status = "okay";
+};
+
+&sata {
+ status = "okay";
+};
+
+&sound_spdif {
+ status = "okay";
+};
+
+&spdif {
+ status = "okay";
+};
+
+&uart1 {
+ status = "okay";
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&uart4 {
+ status = "okay";
+};
+
+&uart5 {
+ status = "okay";
+};
+
+&usbh1 {
+ vbus-supply = <&reg_usb_host_vbus>;
+ status = "okay";
+};
+
+&usbotg {
+ vbus-supply = <&reg_usb_otg_vbus>;
+ status = "okay";
+};
+
+/* MMC1 */
+&usdhc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usdhc1_4bit &pinctrl_mmc_cd>;
+ cd-gpios = <&gpio4 20 GPIO_ACTIVE_LOW>;
+ bus-width = <4>;
+ status = "okay";
+};
+
+&iomuxc {
+ /*
+ * Mux the Apalis GPIOs
+ */
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_apalis_gpio1 &pinctrl_apalis_gpio2
+ &pinctrl_apalis_gpio3 &pinctrl_apalis_gpio4
+ &pinctrl_apalis_gpio5 &pinctrl_apalis_gpio6
+ &pinctrl_apalis_gpio7 &pinctrl_apalis_gpio8
+ >;
+
+ pinctrl_leds_ixora: ledsixoragrp {
+ fsl,pins = <
+ MX6QDL_PAD_SD2_DAT1__GPIO1_IO14 0x1b0b0
+ MX6QDL_PAD_SD2_DAT3__GPIO1_IO12 0x1b0b0
+ MX6QDL_PAD_NANDF_D1__GPIO2_IO01 0x1b0b0
+ MX6QDL_PAD_NANDF_D2__GPIO2_IO02 0x1b0b0
+ >;
+ };
+};
diff --git a/arch/arm/boot/dts/imx6q-apalis-ixora.dts b/arch/arm/boot/dts/imx6q-apalis-ixora.dts
index 88cc7f51a4e9..60d33e99de76 100644
--- a/arch/arm/boot/dts/imx6q-apalis-ixora.dts
+++ b/arch/arm/boot/dts/imx6q-apalis-ixora.dts
@@ -1,5 +1,5 @@
/*
- * Copyright 2014-2016 Toradex AG
+ * Copyright 2014-2017 Toradex AG
* Copyright 2012 Freescale Semiconductor, Inc.
* Copyright 2011 Linaro Ltd.
*
@@ -55,13 +55,9 @@
"fsl,imx6q";
aliases {
- i2c0 = &i2cddc;
- i2c1 = &i2c1;
+ i2c0 = &i2c1;
+ i2c1 = &i2c3;
i2c2 = &i2c2;
- i2c3 = &i2c3;
- };
-
- aliases {
rtc0 = &rtc_i2c;
rtc1 = &snvs_rtc;
};
@@ -164,15 +160,10 @@
};
&hdmi {
- ddc-i2c-bus = <&i2cddc>;
- status = "okay";
-};
-
-&i2cddc {
status = "okay";
};
-/* GEN1_I2C: I2C1_SDA/SCL on MXM3 209/211 (e.g. RTC on carrier board) */
+/* I2C1_SDA/SCL on MXM3 209/211 (e.g. RTC on carrier board) */
&i2c1 {
status = "okay";
@@ -188,6 +179,14 @@
};
};
+/*
+ * I2C3_SDA/SCL (CAM) on MXM3 pin 201/203 (e.g. camera sensor on carrier
+ * board)
+ */
+&i2c3 {
+ status = "okay";
+};
+
&ipu1_di1_disp1 {
remote-endpoint = <&lcd_display_in>;
};
@@ -268,16 +267,13 @@
/* SD1 */
&usdhc2 {
pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_sd_cd>;
+ pinctrl-0 = <&pinctrl_usdhc2 &pinctrl_sd_cd>;
cd-gpios = <&gpio6 14 GPIO_ACTIVE_LOW>;
status = "okay";
};
&iomuxc {
- /*
- * Mux the Apalis GPIOs
- * GPIO5, 6 used by optional fusion_F0710A kernel module
- */
+ /* Mux the Apalis GPIOs */
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_apalis_gpio1 &pinctrl_apalis_gpio2
&pinctrl_apalis_gpio3 &pinctrl_apalis_gpio4
diff --git a/arch/arm/boot/dts/imx6q-b850v3.dts b/arch/arm/boot/dts/imx6q-b850v3.dts
index 2c1e98e0cf7b..46bdc6722715 100644
--- a/arch/arm/boot/dts/imx6q-b850v3.dts
+++ b/arch/arm/boot/dts/imx6q-b850v3.dts
@@ -57,7 +57,7 @@
assigned-clocks = <&clks IMX6QDL_CLK_LDB_DI0_SEL>,
<&clks IMX6QDL_CLK_LDB_DI1_SEL>,
<&clks IMX6QDL_CLK_IPU1_DI0_PRE_SEL>,
- <&clks IMX6QDL_CLK_IPU1_DI1_PRE_SEL>;
+ <&clks IMX6QDL_CLK_IPU2_DI0_PRE_SEL>;
assigned-clock-parents = <&clks IMX6QDL_CLK_PLL5_VIDEO_DIV>,
<&clks IMX6QDL_CLK_PLL5_VIDEO_DIV>,
<&clks IMX6QDL_CLK_PLL2_PFD2_396M>,
diff --git a/arch/arm/boot/dts/imx6q-ba16.dtsi b/arch/arm/boot/dts/imx6q-ba16.dtsi
index 14fa6b25dc45..5fcb0372d58b 100644
--- a/arch/arm/boot/dts/imx6q-ba16.dtsi
+++ b/arch/arm/boot/dts/imx6q-ba16.dtsi
@@ -321,7 +321,7 @@
&pcie {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pcie>;
- reset-gpio = <&gpio7 12 GPIO_ACTIVE_HIGH>;
+ reset-gpio = <&gpio7 12 GPIO_ACTIVE_LOW>;
fsl,tx-swing-full = <103>;
fsl,tx-swing-low = <103>;
status = "okay";
diff --git a/arch/arm/boot/dts/imx6q-bx50v3.dtsi b/arch/arm/boot/dts/imx6q-bx50v3.dtsi
index c90b26f00e24..1015e55ca8f7 100644
--- a/arch/arm/boot/dts/imx6q-bx50v3.dtsi
+++ b/arch/arm/boot/dts/imx6q-bx50v3.dtsi
@@ -111,6 +111,11 @@
};
&i2c1 {
+ pinctrl-names = "default", "gpio";
+ pinctrl-1 = <&pinctrl_i2c1_gpio>;
+ sda-gpios = <&gpio5 26 GPIO_ACTIVE_HIGH>;
+ scl-gpios = <&gpio5 27 GPIO_ACTIVE_HIGH>;
+
pca9547: mux@70 {
compatible = "nxp,pca9547";
reg = <0x70>;
@@ -261,6 +266,43 @@
};
};
+&i2c2 {
+ pinctrl-names = "default", "gpio";
+ pinctrl-1 = <&pinctrl_i2c2_gpio>;
+ sda-gpios = <&gpio4 13 GPIO_ACTIVE_HIGH>;
+ scl-gpios = <&gpio4 12 GPIO_ACTIVE_HIGH>;
+};
+
+&i2c3 {
+ pinctrl-names = "default", "gpio";
+ pinctrl-1 = <&pinctrl_i2c3_gpio>;
+ sda-gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
+ scl-gpios = <&gpio1 3 GPIO_ACTIVE_HIGH>;
+};
+
+&iomuxc {
+ pinctrl_i2c1_gpio: i2c1gpiogrp {
+ fsl,pins = <
+ MX6QDL_PAD_CSI0_DAT8__GPIO5_IO26 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT9__GPIO5_IO27 0x1b0b0
+ >;
+ };
+
+ pinctrl_i2c2_gpio: i2c2gpiogrp {
+ fsl,pins = <
+ MX6QDL_PAD_KEY_COL3__GPIO4_IO12 0x1b0b0
+ MX6QDL_PAD_KEY_ROW3__GPIO4_IO13 0x1b0b0
+ >;
+ };
+
+ pinctrl_i2c3_gpio: i2c3gpiogrp {
+ fsl,pins = <
+ MX6QDL_PAD_GPIO_3__GPIO1_IO03 0x1b0b0
+ MX6QDL_PAD_GPIO_6__GPIO1_IO06 0x1b0b0
+ >;
+ };
+};
+
&usdhc4 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usdhc4>;
diff --git a/arch/arm/boot/dts/imx6q-cm-fx6.dts b/arch/arm/boot/dts/imx6q-cm-fx6.dts
index 66cac5328b86..fe6ab0aa34f9 100644
--- a/arch/arm/boot/dts/imx6q-cm-fx6.dts
+++ b/arch/arm/boot/dts/imx6q-cm-fx6.dts
@@ -64,6 +64,14 @@
};
};
+ awnh387_pwrseq: pwrseq {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pwrseq>;
+ compatible = "mmc-pwrseq-sd8787";
+ powerdown-gpios = <&gpio7 12 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio6 16 GPIO_ACTIVE_HIGH>;
+ };
+
reg_pcie_power_on_gpio: regulator-pcie-power-on-gpio {
compatible = "regulator-fixed";
regulator-name = "regulator-pcie-power-on-gpio";
@@ -215,7 +223,7 @@
clock-frequency = <100000>;
eeprom@50 {
- compatible = "at24,24c02";
+ compatible = "atmel,24c02";
reg = <0x50>;
pagesize = <16>;
};
@@ -304,6 +312,13 @@
>;
};
+ pinctrl_pwrseq: pwrseqgrp {
+ fsl,pins = <
+ MX6QDL_PAD_GPIO_17__GPIO7_IO12 0x1b0b0
+ MX6QDL_PAD_NANDF_CS3__GPIO6_IO16 0x1b0b0
+ >;
+ };
+
pinctrl_spdif: spdifgrp {
fsl,pins = <
MX6QDL_PAD_GPIO_16__SPDIF_IN 0x1b0b0
@@ -330,6 +345,17 @@
MX6QDL_PAD_EIM_D22__GPIO3_IO22 0x130b0
>;
};
+
+ pinctrl_usdhc1: usdhc1grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD1_CMD__SD1_CMD 0x17071
+ MX6QDL_PAD_SD1_CLK__SD1_CLK 0x10071
+ MX6QDL_PAD_SD1_DAT0__SD1_DATA0 0x17071
+ MX6QDL_PAD_SD1_DAT1__SD1_DATA1 0x17071
+ MX6QDL_PAD_SD1_DAT2__SD1_DATA2 0x17071
+ MX6QDL_PAD_SD1_DAT3__SD1_DATA3 0x17071
+ >;
+ };
};
&pcie {
@@ -382,3 +408,18 @@
dr_mode = "otg";
status = "okay";
};
+
+&usdhc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usdhc1>;
+ mmc-pwrseq = <&awnh387_pwrseq>;
+ non-removable;
+ /*
+ * If the OS probes the Bluetooth AMP function advertised on this bus
+ * but the firmware in place does not support it, the WiFi/BT module
+ * gets unresponsive.
+ * Users who configured their OS properly can enable this node to gain
+ * WiFi and/or plain Bluetooth support.
+ */
+ status = "disabled";
+};
diff --git a/arch/arm/boot/dts/imx6q-dmo-edmqmx6.dts b/arch/arm/boot/dts/imx6q-dmo-edmqmx6.dts
index f28883bbe7b1..33eb7f180995 100644
--- a/arch/arm/boot/dts/imx6q-dmo-edmqmx6.dts
+++ b/arch/arm/boot/dts/imx6q-dmo-edmqmx6.dts
@@ -118,7 +118,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet>;
phy-mode = "rgmii";
- phy-reset-gpios = <&gpio1 25 0>;
+ phy-reset-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>;
phy-supply = <&vgen2_1v2_eth>;
status = "okay";
};
@@ -435,7 +435,7 @@
&pcie {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pcie>;
- reset-gpio = <&gpio4 8 0>;
+ reset-gpio = <&gpio4 8 GPIO_ACTIVE_LOW>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6q-evi.dts b/arch/arm/boot/dts/imx6q-evi.dts
index fd2220aa49e2..e0aea782c666 100644
--- a/arch/arm/boot/dts/imx6q-evi.dts
+++ b/arch/arm/boot/dts/imx6q-evi.dts
@@ -94,6 +94,15 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ecspi1 &pinctrl_ecspi1cs>;
status = "okay";
+
+ fpga: fpga@0 {
+ compatible = "altr,fpga-passive-serial";
+ spi-max-frequency = <20000000>;
+ reg = <0>;
+ pinctrl-0 = <&pinctrl_fpgaspi>;
+ nconfig-gpios = <&gpio4 9 GPIO_ACTIVE_LOW>;
+ nstat-gpios = <&gpio4 11 GPIO_ACTIVE_LOW>;
+ };
};
&ecspi3 {
@@ -135,7 +144,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet>;
phy-mode = "rgmii";
- phy-reset-gpios = <&gpio1 25 0>;
+ phy-reset-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>;
interrupts-extended = <&gpio1 6 IRQ_TYPE_LEVEL_HIGH>,
<&intc 0 119 IRQ_TYPE_LEVEL_HIGH>;
fsl,err006687-workaround-present;
@@ -319,6 +328,13 @@
>;
};
+ pinctrl_fpgaspi: fpgaspigrp {
+ fsl,pins = <
+ MX6QDL_PAD_KEY_ROW1__GPIO4_IO09 0x1b0b0
+ MX6QDL_PAD_KEY_ROW2__GPIO4_IO11 0x1b0b0
+ >;
+ };
+
pinctrl_gpminand: gpminandgrp {
fsl,pins = <
MX6QDL_PAD_NANDF_CLE__NAND_CLE 0xb0b1
diff --git a/arch/arm/boot/dts/imx6q-gw52xx.dts b/arch/arm/boot/dts/imx6q-gw52xx.dts
index a12c47e5ee05..0b8ae007ad73 100644
--- a/arch/arm/boot/dts/imx6q-gw52xx.dts
+++ b/arch/arm/boot/dts/imx6q-gw52xx.dts
@@ -18,6 +18,64 @@
compatible = "gw,imx6q-gw52xx", "gw,ventana", "fsl,imx6q";
};
+&i2c3 {
+ adv7180: camera@20 {
+ compatible = "adi,adv7180";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_adv7180>;
+ reg = <0x20>;
+ powerdown-gpios = <&gpio3 31 GPIO_ACTIVE_LOW>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <30 IRQ_TYPE_LEVEL_LOW>;
+
+ port {
+ adv7180_to_ipu2_csi1_mux: endpoint {
+ remote-endpoint = <&ipu2_csi1_mux_from_parallel_sensor>;
+ bus-width = <8>;
+ };
+ };
+ };
+};
+
+&ipu2_csi1_from_ipu2_csi1_mux {
+ bus-width = <8>;
+};
+
+&ipu2_csi1_mux_from_parallel_sensor {
+ remote-endpoint = <&adv7180_to_ipu2_csi1_mux>;
+ bus-width = <8>;
+};
+
+&ipu2_csi1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ipu2_csi1>;
+};
+
+&iomuxc {
+ pinctrl_adv7180: adv7180grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_D30__GPIO3_IO30 0x0001b0b0
+ MX6QDL_PAD_EIM_D31__GPIO3_IO31 0x4001b0b0
+ >;
+ };
+
+ pinctrl_ipu2_csi1: ipu2_csi1grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_EB2__IPU2_CSI1_DATA19 0x1b0b0
+ MX6QDL_PAD_EIM_D16__IPU2_CSI1_DATA18 0x1b0b0
+ MX6QDL_PAD_EIM_D18__IPU2_CSI1_DATA17 0x1b0b0
+ MX6QDL_PAD_EIM_D19__IPU2_CSI1_DATA16 0x1b0b0
+ MX6QDL_PAD_EIM_D20__IPU2_CSI1_DATA15 0x1b0b0
+ MX6QDL_PAD_EIM_D26__IPU2_CSI1_DATA14 0x1b0b0
+ MX6QDL_PAD_EIM_D27__IPU2_CSI1_DATA13 0x1b0b0
+ MX6QDL_PAD_EIM_A17__IPU2_CSI1_DATA12 0x1b0b0
+ MX6QDL_PAD_EIM_D29__IPU2_CSI1_VSYNC 0x1b0b0
+ MX6QDL_PAD_EIM_EB3__IPU2_CSI1_HSYNC 0x1b0b0
+ MX6QDL_PAD_EIM_A16__IPU2_CSI1_PIXCLK 0x1b0b0
+ >;
+ };
+};
+
&sata {
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6q-gw53xx.dts b/arch/arm/boot/dts/imx6q-gw53xx.dts
index d76aaa83dad0..a56ef77eff3f 100644
--- a/arch/arm/boot/dts/imx6q-gw53xx.dts
+++ b/arch/arm/boot/dts/imx6q-gw53xx.dts
@@ -18,6 +18,64 @@
compatible = "gw,imx6q-gw53xx", "gw,ventana", "fsl,imx6q";
};
+&i2c3 {
+ adv7180: camera@20 {
+ compatible = "adi,adv7180";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_adv7180>;
+ reg = <0x20>;
+ powerdown-gpios = <&gpio3 31 GPIO_ACTIVE_LOW>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <30 IRQ_TYPE_LEVEL_LOW>;
+
+ port {
+ adv7180_to_ipu2_csi1_mux: endpoint {
+ remote-endpoint = <&ipu2_csi1_mux_from_parallel_sensor>;
+ bus-width = <8>;
+ };
+ };
+ };
+};
+
+&ipu2_csi1_from_ipu2_csi1_mux {
+ bus-width = <8>;
+};
+
+&ipu2_csi1_mux_from_parallel_sensor {
+ remote-endpoint = <&adv7180_to_ipu2_csi1_mux>;
+ bus-width = <8>;
+};
+
+&ipu2_csi1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ipu2_csi1>;
+};
+
&sata {
status = "okay";
};
+
+&iomuxc {
+ pinctrl_adv7180: adv7180grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_D30__GPIO3_IO30 0x0001b0b0
+ MX6QDL_PAD_EIM_D31__GPIO3_IO31 0x4001b0b0
+ >;
+ };
+
+ pinctrl_ipu2_csi1: ipu2_csi1grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_EB2__IPU2_CSI1_DATA19 0x1b0b0
+ MX6QDL_PAD_EIM_D16__IPU2_CSI1_DATA18 0x1b0b0
+ MX6QDL_PAD_EIM_D18__IPU2_CSI1_DATA17 0x1b0b0
+ MX6QDL_PAD_EIM_D19__IPU2_CSI1_DATA16 0x1b0b0
+ MX6QDL_PAD_EIM_D20__IPU2_CSI1_DATA15 0x1b0b0
+ MX6QDL_PAD_EIM_D26__IPU2_CSI1_DATA14 0x1b0b0
+ MX6QDL_PAD_EIM_D27__IPU2_CSI1_DATA13 0x1b0b0
+ MX6QDL_PAD_EIM_A17__IPU2_CSI1_DATA12 0x1b0b0
+ MX6QDL_PAD_EIM_D29__IPU2_CSI1_VSYNC 0x1b0b0
+ MX6QDL_PAD_EIM_EB3__IPU2_CSI1_HSYNC 0x1b0b0
+ MX6QDL_PAD_EIM_A16__IPU2_CSI1_PIXCLK 0x1b0b0
+ >;
+ };
+};
diff --git a/arch/arm/boot/dts/imx6q-gw5400-a.dts b/arch/arm/boot/dts/imx6q-gw5400-a.dts
index 8e84713f42c0..9dbeea05a949 100644
--- a/arch/arm/boot/dts/imx6q-gw5400-a.dts
+++ b/arch/arm/boot/dts/imx6q-gw5400-a.dts
@@ -19,7 +19,6 @@
/* these are used by bootloader for disabling nodes */
aliases {
- ethernet1 = &eth1;
i2c0 = &i2c1;
i2c1 = &i2c2;
i2c2 = &i2c3;
@@ -154,7 +153,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet>;
phy-mode = "rgmii-id";
- phy-reset-gpios = <&gpio1 30 GPIO_ACTIVE_HIGH>;
+ phy-reset-gpios = <&gpio1 30 GPIO_ACTIVE_LOW>;
status = "okay";
};
@@ -347,10 +346,6 @@
&pcie {
reset-gpio = <&gpio1 29 GPIO_ACTIVE_LOW>;
status = "okay";
-
- eth1: sky2@8 { /* MAC/PHY on bus 8 */
- compatible = "marvell,sky2";
- };
};
&ssi1 {
diff --git a/arch/arm/boot/dts/imx6q-gw54xx.dts b/arch/arm/boot/dts/imx6q-gw54xx.dts
index 6e8f53e92a2d..56e5b5050fcf 100644
--- a/arch/arm/boot/dts/imx6q-gw54xx.dts
+++ b/arch/arm/boot/dts/imx6q-gw54xx.dts
@@ -18,6 +18,64 @@
compatible = "gw,imx6q-gw54xx", "gw,ventana", "fsl,imx6q";
};
+&i2c3 {
+ adv7180: camera@20 {
+ compatible = "adi,adv7180";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_adv7180>;
+ reg = <0x20>;
+ powerdown-gpios = <&gpio3 31 GPIO_ACTIVE_LOW>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <30 IRQ_TYPE_LEVEL_LOW>;
+
+ port {
+ adv7180_to_ipu2_csi1_mux: endpoint {
+ remote-endpoint = <&ipu2_csi1_mux_from_parallel_sensor>;
+ bus-width = <8>;
+ };
+ };
+ };
+};
+
+&ipu2_csi1_from_ipu2_csi1_mux {
+ bus-width = <8>;
+};
+
+&ipu2_csi1_mux_from_parallel_sensor {
+ remote-endpoint = <&adv7180_to_ipu2_csi1_mux>;
+ bus-width = <8>;
+};
+
+&ipu2_csi1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ipu2_csi1>;
+};
+
&sata {
status = "okay";
};
+
+&iomuxc {
+ pinctrl_adv7180: adv7180grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_D30__GPIO3_IO30 0x0001b0b0
+ MX6QDL_PAD_EIM_D31__GPIO3_IO31 0x4001b0b0
+ >;
+ };
+
+ pinctrl_ipu2_csi1: ipu2_csi1grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_EB2__IPU2_CSI1_DATA19 0x1b0b0
+ MX6QDL_PAD_EIM_D16__IPU2_CSI1_DATA18 0x1b0b0
+ MX6QDL_PAD_EIM_D18__IPU2_CSI1_DATA17 0x1b0b0
+ MX6QDL_PAD_EIM_D19__IPU2_CSI1_DATA16 0x1b0b0
+ MX6QDL_PAD_EIM_D20__IPU2_CSI1_DATA15 0x1b0b0
+ MX6QDL_PAD_EIM_D26__IPU2_CSI1_DATA14 0x1b0b0
+ MX6QDL_PAD_EIM_D27__IPU2_CSI1_DATA13 0x1b0b0
+ MX6QDL_PAD_EIM_A17__IPU2_CSI1_DATA12 0x1b0b0
+ MX6QDL_PAD_EIM_D29__IPU2_CSI1_VSYNC 0x1b0b0
+ MX6QDL_PAD_EIM_EB3__IPU2_CSI1_HSYNC 0x1b0b0
+ MX6QDL_PAD_EIM_A16__IPU2_CSI1_PIXCLK 0x1b0b0
+ >;
+ };
+};
diff --git a/arch/arm/boot/dts/imx6q-gw560x.dts b/arch/arm/boot/dts/imx6q-gw560x.dts
new file mode 100644
index 000000000000..735f2bbf1439
--- /dev/null
+++ b/arch/arm/boot/dts/imx6q-gw560x.dts
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2017 Gateworks Corporation
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this file; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include "imx6q.dtsi"
+#include "imx6qdl-gw560x.dtsi"
+
+/ {
+ model = "Gateworks Ventana i.MX6 Dual/Quad GW560X";
+ compatible = "gw,imx6q-gw560x", "gw,ventana", "fsl,imx6q";
+};
+
+&sata {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/imx6q-novena.dts b/arch/arm/boot/dts/imx6q-novena.dts
index 0fa32b2f3aec..d83cfb6ec598 100644
--- a/arch/arm/boot/dts/imx6q-novena.dts
+++ b/arch/arm/boot/dts/imx6q-novena.dts
@@ -217,7 +217,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet_novena>;
phy-mode = "rgmii";
- phy-reset-gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
+ phy-reset-gpios = <&gpio3 23 GPIO_ACTIVE_LOW>;
rxc-skew-ps = <3000>;
rxdv-skew-ps = <0>;
txc-skew-ps = <3000>;
@@ -446,7 +446,7 @@
&pcie {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pcie_novena>;
- reset-gpio = <&gpio3 29 GPIO_ACTIVE_HIGH>;
+ reset-gpio = <&gpio3 29 GPIO_ACTIVE_LOW>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6q-sabrelite.dts b/arch/arm/boot/dts/imx6q-sabrelite.dts
index 02a7cdfd57c9..dc51262e7b2f 100644
--- a/arch/arm/boot/dts/imx6q-sabrelite.dts
+++ b/arch/arm/boot/dts/imx6q-sabrelite.dts
@@ -52,3 +52,8 @@
&sata {
status = "okay";
};
+
+&ipu1_csi1_from_mipi_vc1 {
+ clock-lanes = <0>;
+ data-lanes = <1 2>;
+};
diff --git a/arch/arm/boot/dts/imx6q-sabresd.dts b/arch/arm/boot/dts/imx6q-sabresd.dts
index 9cbdfe7a0931..527772b62fee 100644
--- a/arch/arm/boot/dts/imx6q-sabresd.dts
+++ b/arch/arm/boot/dts/imx6q-sabresd.dts
@@ -23,3 +23,8 @@
&sata {
status = "okay";
};
+
+&ipu1_csi1_from_mipi_vc1 {
+ clock-lanes = <0>;
+ data-lanes = <1 2>;
+};
diff --git a/arch/arm/boot/dts/imx6q-utilite-pro.dts b/arch/arm/boot/dts/imx6q-utilite-pro.dts
index d900ad6ec5f8..16d5be1aeb3c 100644
--- a/arch/arm/boot/dts/imx6q-utilite-pro.dts
+++ b/arch/arm/boot/dts/imx6q-utilite-pro.dts
@@ -130,7 +130,7 @@
#size-cells = <0>;
eeprom@50 {
- compatible = "at24,24c02";
+ compatible = "atmel,24c02";
reg = <0x50>;
pagesize = <16>;
};
diff --git a/arch/arm/boot/dts/imx6q-zii-rdu2.dts b/arch/arm/boot/dts/imx6q-zii-rdu2.dts
index b2d346640fd7..6be8a1eea895 100644
--- a/arch/arm/boot/dts/imx6q-zii-rdu2.dts
+++ b/arch/arm/boot/dts/imx6q-zii-rdu2.dts
@@ -41,8 +41,8 @@
/dts-v1/;
-#include <imx6q.dtsi>
-#include <imx6qdl-zii-rdu2.dtsi>
+#include "imx6q.dtsi"
+#include "imx6qdl-zii-rdu2.dtsi"
/ {
model = "ZII RDU2 Board";
diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi
index e9a5d0b8c7b0..90a741732f60 100644
--- a/arch/arm/boot/dts/imx6q.dtsi
+++ b/arch/arm/boot/dts/imx6q.dtsi
@@ -125,7 +125,7 @@
clocks = <&clks IMX6QDL_CLK_OPENVG_AXI>,
<&clks IMX6QDL_CLK_GPU2D_CORE>;
clock-names = "bus", "core";
- power-domains = <&gpc 1>;
+ power-domains = <&pd_pu>;
};
ipu2: ipu@02800000 {
@@ -143,10 +143,18 @@
ipu2_csi0: port@0 {
reg = <0>;
+
+ ipu2_csi0_from_mipi_vc2: endpoint {
+ remote-endpoint = <&mipi_vc2_to_ipu2_csi0>;
+ };
};
ipu2_csi1: port@1 {
reg = <1>;
+
+ ipu2_csi1_from_ipu2_csi1_mux: endpoint {
+ remote-endpoint = <&ipu2_csi1_mux_to_ipu2_csi1>;
+ };
};
ipu2_di0: port@2 {
@@ -198,6 +206,11 @@
};
};
+ capture-subsystem {
+ compatible = "fsl,imx-capture-subsystem";
+ ports = <&ipu1_csi0>, <&ipu1_csi1>, <&ipu2_csi0>, <&ipu2_csi1>;
+ };
+
display-subsystem {
compatible = "fsl,imx-display-subsystem";
ports = <&ipu1_di0>, <&ipu1_di1>, <&ipu2_di0>, <&ipu2_di1>;
@@ -246,6 +259,68 @@
gpio-ranges = <&iomuxc 0 172 9>, <&iomuxc 9 189 2>, <&iomuxc 11 146 3>;
};
+&gpr {
+ ipu1_csi0_mux {
+ compatible = "video-mux";
+ mux-controls = <&mux 0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ ipu1_csi0_mux_from_mipi_vc0: endpoint {
+ remote-endpoint = <&mipi_vc0_to_ipu1_csi0_mux>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ ipu1_csi0_mux_from_parallel_sensor: endpoint {
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ ipu1_csi0_mux_to_ipu1_csi0: endpoint {
+ remote-endpoint = <&ipu1_csi0_from_ipu1_csi0_mux>;
+ };
+ };
+ };
+
+ ipu2_csi1_mux {
+ compatible = "video-mux";
+ mux-controls = <&mux 1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ ipu2_csi1_mux_from_mipi_vc3: endpoint {
+ remote-endpoint = <&mipi_vc3_to_ipu2_csi1_mux>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ ipu2_csi1_mux_from_parallel_sensor: endpoint {
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ ipu2_csi1_mux_to_ipu2_csi1: endpoint {
+ remote-endpoint = <&ipu2_csi1_from_ipu2_csi1_mux>;
+ };
+ };
+ };
+};
+
&hdmi {
compatible = "fsl,imx6q-hdmi";
@@ -266,6 +341,12 @@
};
};
+&ipu1_csi1 {
+ ipu1_csi1_from_mipi_vc1: endpoint {
+ remote-endpoint = <&mipi_vc1_to_ipu1_csi1>;
+ };
+};
+
&ldb {
clocks = <&clks IMX6QDL_CLK_LDB_DI0_SEL>, <&clks IMX6QDL_CLK_LDB_DI1_SEL>,
<&clks IMX6QDL_CLK_IPU1_DI0_SEL>, <&clks IMX6QDL_CLK_IPU1_DI1_SEL>,
@@ -312,6 +393,40 @@
};
};
+&mipi_csi {
+ port@1 {
+ reg = <1>;
+
+ mipi_vc0_to_ipu1_csi0_mux: endpoint {
+ remote-endpoint = <&ipu1_csi0_mux_from_mipi_vc0>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ mipi_vc1_to_ipu1_csi1: endpoint {
+ remote-endpoint = <&ipu1_csi1_from_mipi_vc1>;
+ };
+ };
+
+ port@3 {
+ reg = <3>;
+
+ mipi_vc2_to_ipu2_csi0: endpoint {
+ remote-endpoint = <&ipu2_csi0_from_mipi_vc2>;
+ };
+ };
+
+ port@4 {
+ reg = <4>;
+
+ mipi_vc3_to_ipu2_csi1_mux: endpoint {
+ remote-endpoint = <&ipu2_csi1_mux_from_mipi_vc3>;
+ };
+ };
+};
+
&mipi_dsi {
ports {
port@2 {
@@ -332,6 +447,16 @@
};
};
+&mux {
+ mux-reg-masks = <0x04 0x00080000>, /* MIPI_IPU1_MUX */
+ <0x04 0x00100000>, /* MIPI_IPU2_MUX */
+ <0x0c 0x0000000c>, /* HDMI_MUX_CTL */
+ <0x0c 0x000000c0>, /* LVDS0_MUX_CTL */
+ <0x0c 0x00000300>, /* LVDS1_MUX_CTL */
+ <0x28 0x00000003>, /* DCIC1_MUX_CTL */
+ <0x28 0x0000000c>; /* DCIC2_MUX_CTL */
+};
+
&vpu {
compatible = "fsl,imx6q-vpu", "cnm,coda960";
};
diff --git a/arch/arm/boot/dts/imx6qdl-apalis.dtsi b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
index ba01dd76d887..ea339fa58f4a 100644
--- a/arch/arm/boot/dts/imx6qdl-apalis.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
@@ -1,5 +1,5 @@
/*
- * Copyright 2014-2016 Toradex AG
+ * Copyright 2014-2017 Toradex AG
* Copyright 2012 Freescale Semiconductor, Inc.
* Copyright 2011 Linaro Ltd.
*
@@ -56,18 +56,6 @@
status = "disabled";
};
- /* DDC_I2C: I2C2_SDA/SCL on MXM3 205/207 */
- i2cddc: i2c@0 {
- compatible = "i2c-gpio";
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_i2c_ddc>;
- gpios = <&gpio3 16 GPIO_ACTIVE_HIGH /* sda */
- &gpio2 30 GPIO_ACTIVE_HIGH /* scl */
- >;
- i2c-gpio,delay-us = <2>; /* ~100 kHz */
- status = "disabled";
- };
-
reg_1p8v: regulator-1p8v {
compatible = "regulator-fixed";
regulator-name = "1P8V";
@@ -210,10 +198,13 @@
};
};
-/*
- * GEN1_I2C: I2C1_SDA/SCL on MXM3 209/211 (e.g. RTC on carrier
- * board)
- */
+&hdmi {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_hdmi_ddc>;
+ status = "disabled";
+};
+
+/* I2C1_SDA/SCL on MXM3 209/211 (e.g. RTC on carrier board) */
&i2c1 {
clock-frequency = <100000>;
pinctrl-names = "default";
@@ -374,7 +365,8 @@
};
/*
- * GEN2_I2C, CAM: I2C3_SDA/SCL on MXM3 201/203 (unused)
+ * I2C3_SDA/SCL (CAM) on MXM3 pin 201/203 (e.g. camera sensor on carrier
+ * board)
*/
&i2c3 {
clock-frequency = <100000>;
@@ -460,7 +452,7 @@
/* MMC1 */
&usdhc1 {
pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_usdhc1>;
+ pinctrl-0 = <&pinctrl_usdhc1_4bit &pinctrl_usdhc1_8bit>;
vqmmc-supply = <&reg_3p3v>;
bus-width = <8>;
voltage-ranges = <3300 3300>;
@@ -640,11 +632,10 @@
>;
};
- pinctrl_i2c_ddc: gpioi2cddcgrp {
+ pinctrl_hdmi_ddc: hdmiddcgrp {
fsl,pins = <
- /* DDC bitbang */
- MX6QDL_PAD_EIM_EB2__GPIO2_IO30 0x1b0b0
- MX6QDL_PAD_EIM_D16__GPIO3_IO16 0x1b0b0
+ MX6QDL_PAD_EIM_EB2__HDMI_TX_DDC_SCL 0x4001b8b1
+ MX6QDL_PAD_EIM_D16__HDMI_TX_DDC_SDA 0x4001b8b1
>;
};
@@ -912,7 +903,7 @@
>;
};
- pinctrl_usdhc1: usdhc1grp {
+ pinctrl_usdhc1_4bit: usdhc1grp_4bit {
fsl,pins = <
MX6QDL_PAD_SD1_CMD__SD1_CMD 0x17071
MX6QDL_PAD_SD1_CLK__SD1_CLK 0x10071
@@ -920,6 +911,11 @@
MX6QDL_PAD_SD1_DAT1__SD1_DATA1 0x17071
MX6QDL_PAD_SD1_DAT2__SD1_DATA2 0x17071
MX6QDL_PAD_SD1_DAT3__SD1_DATA3 0x17071
+ >;
+ };
+
+ pinctrl_usdhc1_8bit: usdhc1grp_8bit {
+ fsl,pins = <
MX6QDL_PAD_NANDF_D0__SD1_DATA4 0x17071
MX6QDL_PAD_NANDF_D1__SD1_DATA5 0x17071
MX6QDL_PAD_NANDF_D2__SD1_DATA6 0x17071
diff --git a/arch/arm/boot/dts/imx6qdl-apf6dev.dtsi b/arch/arm/boot/dts/imx6qdl-apf6dev.dtsi
index 550e100e85fc..9cd2a7477ed7 100644
--- a/arch/arm/boot/dts/imx6qdl-apf6dev.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-apf6dev.dtsi
@@ -232,7 +232,7 @@
&pcie {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pcie>;
- reset-gpio = <&gpio6 2 GPIO_ACTIVE_HIGH>;
+ reset-gpio = <&gpio6 2 GPIO_ACTIVE_LOW>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6qdl-aristainetos.dtsi b/arch/arm/boot/dts/imx6qdl-aristainetos.dtsi
index b2debc0aa720..7d64075204ae 100644
--- a/arch/arm/boot/dts/imx6qdl-aristainetos.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-aristainetos.dtsi
@@ -118,7 +118,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet>;
phy-mode = "rmii";
- phy-reset-gpios = <&gpio3 29 GPIO_ACTIVE_HIGH>;
+ phy-reset-gpios = <&gpio3 29 GPIO_ACTIVE_LOW>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6qdl-aristainetos2.dtsi b/arch/arm/boot/dts/imx6qdl-aristainetos2.dtsi
index ec68f1cace31..1b1872873207 100644
--- a/arch/arm/boot/dts/imx6qdl-aristainetos2.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-aristainetos2.dtsi
@@ -320,7 +320,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet>;
phy-mode = "rgmii";
- phy-reset-gpios = <&gpio7 18 GPIO_ACTIVE_HIGH>;
+ phy-reset-gpios = <&gpio7 18 GPIO_ACTIVE_LOW>;
txd0-skew-ps = <0>;
txd1-skew-ps = <0>;
txd2-skew-ps = <0>;
@@ -335,7 +335,7 @@
};
&pcie {
- reset-gpio = <&gpio2 16 GPIO_ACTIVE_HIGH>;
+ reset-gpio = <&gpio2 16 GPIO_ACTIVE_LOW>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6qdl-colibri.dtsi b/arch/arm/boot/dts/imx6qdl-colibri.dtsi
index e8078758f26c..ad84eddb6836 100644
--- a/arch/arm/boot/dts/imx6qdl-colibri.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-colibri.dtsi
@@ -254,6 +254,7 @@
clocks = <&clks IMX6QDL_CLK_CKO>;
VDDA-supply = <&reg_2p5v>;
VDDIO-supply = <&reg_3p3v>;
+ lrclk-strength = <3>;
};
/* STMPE811 touch screen controller */
diff --git a/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi
index e8c1edc82e6e..885556260bd0 100644
--- a/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi
@@ -231,6 +231,37 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c3>;
status = "okay";
+
+ adv7180: camera@20 {
+ compatible = "adi,adv7180";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_adv7180>;
+ reg = <0x20>;
+ powerdown-gpios = <&gpio5 20 GPIO_ACTIVE_LOW>;
+ interrupt-parent = <&gpio5>;
+ interrupts = <23 IRQ_TYPE_LEVEL_LOW>;
+
+ port {
+ adv7180_to_ipu1_csi0_mux: endpoint {
+ remote-endpoint = <&ipu1_csi0_mux_from_parallel_sensor>;
+ bus-width = <8>;
+ };
+ };
+ };
+};
+
+&ipu1_csi0_from_ipu1_csi0_mux {
+ bus-width = <8>;
+};
+
+&ipu1_csi0_mux_from_parallel_sensor {
+ remote-endpoint = <&adv7180_to_ipu1_csi0_mux>;
+ bus-width = <8>;
+};
+
+&ipu1_csi0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ipu1_csi0>;
};
&pcie {
@@ -302,6 +333,13 @@
&iomuxc {
imx6qdl-gw51xx {
+ pinctrl_adv7180: adv7180grp {
+ fsl,pins = <
+ MX6QDL_PAD_CSI0_DAT5__GPIO5_IO23 0x0001b0b0
+ MX6QDL_PAD_CSI0_DATA_EN__GPIO5_IO20 0x4001b0b0
+ >;
+ };
+
pinctrl_enet: enetgrp {
fsl,pins = <
MX6QDL_PAD_RGMII_RXC__RGMII_RXC 0x1b030
@@ -372,6 +410,22 @@
>;
};
+ pinctrl_ipu1_csi0: ipu1csi0grp {
+ fsl,pins = <
+ MX6QDL_PAD_CSI0_DAT12__IPU1_CSI0_DATA12 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT13__IPU1_CSI0_DATA13 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT14__IPU1_CSI0_DATA14 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT15__IPU1_CSI0_DATA15 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT16__IPU1_CSI0_DATA16 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT17__IPU1_CSI0_DATA17 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT18__IPU1_CSI0_DATA18 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT19__IPU1_CSI0_DATA19 0x1b0b0
+ MX6QDL_PAD_CSI0_MCLK__IPU1_CSI0_HSYNC 0x1b0b0
+ MX6QDL_PAD_CSI0_VSYNC__IPU1_CSI0_VSYNC 0x1b0b0
+ MX6QDL_PAD_CSI0_PIXCLK__IPU1_CSI0_PIXCLK 0x1b0b0
+ >;
+ };
+
pinctrl_pcie: pciegrp {
fsl,pins = <
MX6QDL_PAD_GPIO_0__GPIO1_IO00 0x1b0b0
diff --git a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
index 91991d63a69c..115d706228ef 100644
--- a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
@@ -377,7 +377,6 @@
&uart1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart1>;
- uart-has-rtscts;
rts-gpios = <&gpio7 1 GPIO_ACTIVE_HIGH>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
index a208e7e0dc6e..24be7965056c 100644
--- a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
@@ -14,7 +14,6 @@
/ {
/* these are used by bootloader for disabling nodes */
aliases {
- ethernet1 = &eth1;
led0 = &led0;
led1 = &led1;
led2 = &led2;
@@ -342,10 +341,6 @@
pinctrl-0 = <&pinctrl_pcie>;
reset-gpio = <&gpio1 29 GPIO_ACTIVE_LOW>;
status = "okay";
-
- eth1: sky2@8 { /* MAC/PHY on bus 8 */
- compatible = "marvell,sky2";
- };
};
&pwm2 {
@@ -373,7 +368,6 @@
&uart1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart1>;
- uart-has-rtscts;
rts-gpios = <&gpio7 1 GPIO_ACTIVE_HIGH>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
index 968fda94d14b..4594b2279169 100644
--- a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
@@ -14,7 +14,6 @@
/ {
/* these are used by bootloader for disabling nodes */
aliases {
- ethernet1 = &eth1;
led0 = &led0;
led1 = &led1;
led2 = &led2;
@@ -379,10 +378,6 @@
pinctrl-0 = <&pinctrl_pcie>;
reset-gpio = <&gpio1 29 GPIO_ACTIVE_LOW>;
status = "okay";
-
- eth1: sky2@8 { /* MAC/PHY on bus 8 */
- compatible = "marvell,sky2";
- };
};
&pwm1 {
@@ -421,7 +416,6 @@
&uart1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart1>;
- uart-has-rtscts;
rts-gpios = <&gpio7 1 GPIO_ACTIVE_HIGH>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6qdl-gw553x.dtsi b/arch/arm/boot/dts/imx6qdl-gw553x.dtsi
index 57374dddf98d..1a0faa1a14c8 100644
--- a/arch/arm/boot/dts/imx6qdl-gw553x.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw553x.dtsi
@@ -261,6 +261,37 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c3>;
status = "okay";
+
+ adv7180: camera@20 {
+ compatible = "adi,adv7180";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_adv7180>;
+ reg = <0x20>;
+ powerdown-gpios = <&gpio5 20 GPIO_ACTIVE_LOW>;
+ interrupt-parent = <&gpio5>;
+ interrupts = <23 IRQ_TYPE_LEVEL_LOW>;
+
+ port {
+ adv7180_to_ipu1_csi0_mux: endpoint {
+ remote-endpoint = <&ipu1_csi0_mux_from_parallel_sensor>;
+ bus-width = <8>;
+ };
+ };
+ };
+};
+
+&ipu1_csi0_from_ipu1_csi0_mux {
+ bus-width = <8>;
+};
+
+&ipu1_csi0_mux_from_parallel_sensor {
+ remote-endpoint = <&adv7180_to_ipu1_csi0_mux>;
+ bus-width = <8>;
+};
+
+&ipu1_csi0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ipu1_csi0>;
};
&pcie {
@@ -340,6 +371,13 @@
};
&iomuxc {
+ pinctrl_adv7180: adv7180grp {
+ fsl,pins = <
+ MX6QDL_PAD_CSI0_DAT5__GPIO5_IO23 0x0001b0b0
+ MX6QDL_PAD_CSI0_DATA_EN__GPIO5_IO20 0x4001b0b0
+ >;
+ };
+
pinctrl_gpmi_nand: gpminandgrp {
fsl,pins = <
MX6QDL_PAD_NANDF_CLE__NAND_CLE 0xb0b1
@@ -387,6 +425,22 @@
>;
};
+ pinctrl_ipu1_csi0: ipu1csi0grp {
+ fsl,pins = <
+ MX6QDL_PAD_CSI0_DAT12__IPU1_CSI0_DATA12 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT13__IPU1_CSI0_DATA13 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT14__IPU1_CSI0_DATA14 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT15__IPU1_CSI0_DATA15 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT16__IPU1_CSI0_DATA16 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT17__IPU1_CSI0_DATA17 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT18__IPU1_CSI0_DATA18 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT19__IPU1_CSI0_DATA19 0x1b0b0
+ MX6QDL_PAD_CSI0_MCLK__IPU1_CSI0_HSYNC 0x1b0b0
+ MX6QDL_PAD_CSI0_VSYNC__IPU1_CSI0_VSYNC 0x1b0b0
+ MX6QDL_PAD_CSI0_PIXCLK__IPU1_CSI0_PIXCLK 0x1b0b0
+ >;
+ };
+
pinctrl_gpio_leds: gpioledsgrp {
fsl,pins = <
MX6QDL_PAD_KEY_COL2__GPIO4_IO10 0x1b0b0
diff --git a/arch/arm/boot/dts/imx6qdl-gw560x.dtsi b/arch/arm/boot/dts/imx6qdl-gw560x.dtsi
new file mode 100644
index 000000000000..d894dde6e85d
--- /dev/null
+++ b/arch/arm/boot/dts/imx6qdl-gw560x.dtsi
@@ -0,0 +1,749 @@
+/*
+ * Copyright 2017 Gateworks Corporation
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this file; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+ /* these are used by bootloader for disabling nodes */
+ aliases {
+ led0 = &led0;
+ led1 = &led1;
+ led2 = &led2;
+ ssi0 = &ssi1;
+ usb0 = &usbh1;
+ usb1 = &usbotg;
+ };
+
+ chosen {
+ stdout-path = &uart2;
+ };
+
+ backlight-display {
+ compatible = "pwm-backlight";
+ pwms = <&pwm4 0 5000000>;
+ brightness-levels = <
+ 0 1 2 3 4 5 6 7 8 9
+ 10 11 12 13 14 15 16 17 18 19
+ 20 21 22 23 24 25 26 27 28 29
+ 30 31 32 33 34 35 36 37 38 39
+ 40 41 42 43 44 45 46 47 48 49
+ 50 51 52 53 54 55 56 57 58 59
+ 60 61 62 63 64 65 66 67 68 69
+ 70 71 72 73 74 75 76 77 78 79
+ 80 81 82 83 84 85 86 87 88 89
+ 90 91 92 93 94 95 96 97 98 99
+ 100
+ >;
+ default-brightness-level = <100>;
+ };
+
+ backlight-keypad {
+ compatible = "gpio-backlight";
+ gpios = <&gpio4 30 GPIO_ACTIVE_HIGH>;
+ default-on;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpio_leds>;
+
+ led0: user1 {
+ label = "user1";
+ gpios = <&gpio4 6 GPIO_ACTIVE_HIGH>; /* MX6_PANLEDG */
+ default-state = "on";
+ linux,default-trigger = "heartbeat";
+ };
+
+ led1: user2 {
+ label = "user2";
+ gpios = <&gpio4 7 GPIO_ACTIVE_HIGH>; /* MX6_PANLEDR */
+ default-state = "off";
+ };
+
+ led2: user3 {
+ label = "user3";
+ gpios = <&gpio4 15 GPIO_ACTIVE_LOW>; /* MX6_LOCLED# */
+ default-state = "off";
+ };
+ };
+
+ memory@10000000 {
+ reg = <0x10000000 0x40000000>;
+ };
+
+ pps {
+ compatible = "pps-gpio";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pps>;
+ gpios = <&gpio1 26 GPIO_ACTIVE_HIGH>;
+ };
+
+ reg_2p5v: regulator-2p5v {
+ compatible = "regulator-fixed";
+ regulator-name = "2P5V";
+ regulator-min-microvolt = <2500000>;
+ regulator-max-microvolt = <2500000>;
+ regulator-always-on;
+ };
+
+ reg_3p3v: regulator-3p3v {
+ compatible = "regulator-fixed";
+ regulator-name = "3P3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ reg_5p0v: regulator-5p0v {
+ compatible = "regulator-fixed";
+ regulator-name = "5P0V";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-always-on;
+ };
+
+ reg_12p0v: regulator-12p0v {
+ compatible = "regulator-fixed";
+ regulator-name = "12P0V";
+ regulator-min-microvolt = <12000000>;
+ regulator-max-microvolt = <12000000>;
+ gpio = <&gpio4 25 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ reg_1p4v: regulator-vddsoc {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd_soc";
+ regulator-min-microvolt = <1400000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-always-on;
+ };
+
+ reg_usb_h1_vbus: regulator-usb-h1-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usb_h1_vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-always-on;
+ };
+
+ reg_usb_otg_vbus: regulator-usb-otg-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usb_otg_vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&gpio3 22 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ sound {
+ compatible = "fsl,imx6q-ventana-sgtl5000",
+ "fsl,imx-audio-sgtl5000";
+ model = "sgtl5000-audio";
+ ssi-controller = <&ssi1>;
+ audio-codec = <&sgtl5000>;
+ audio-routing =
+ "MIC_IN", "Mic Jack",
+ "Mic Jack", "Mic Bias",
+ "Headphone Jack", "HP_OUT";
+ mux-int-port = <1>;
+ mux-ext-port = <4>;
+ };
+};
+
+&audmux {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_audmux>;
+ status = "okay";
+};
+
+&ecspi3 {
+ cs-gpios = <&gpio4 24 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ecspi3>;
+ status = "okay";
+};
+
+&can1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flexcan>;
+ status = "okay";
+};
+
+&clks {
+ assigned-clocks = <&clks IMX6QDL_CLK_LDB_DI0_SEL>,
+ <&clks IMX6QDL_CLK_LDB_DI1_SEL>;
+ assigned-clock-parents = <&clks IMX6QDL_CLK_PLL3_USB_OTG>,
+ <&clks IMX6QDL_CLK_PLL3_USB_OTG>;
+};
+
+&fec {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_enet>;
+ phy-mode = "rgmii-id";
+ phy-reset-gpios = <&gpio1 30 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+&hdmi {
+ ddc-i2c-bus = <&i2c3>;
+ status = "okay";
+};
+
+&i2c1 {
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c1>;
+ status = "okay";
+
+ eeprom1: eeprom@50 {
+ compatible = "atmel,24c02";
+ reg = <0x50>;
+ pagesize = <16>;
+ };
+
+ eeprom2: eeprom@51 {
+ compatible = "atmel,24c02";
+ reg = <0x51>;
+ pagesize = <16>;
+ };
+
+ eeprom3: eeprom@52 {
+ compatible = "atmel,24c02";
+ reg = <0x52>;
+ pagesize = <16>;
+ };
+
+ eeprom4: eeprom@53 {
+ compatible = "atmel,24c02";
+ reg = <0x53>;
+ pagesize = <16>;
+ };
+
+ pca9555: gpio@23 {
+ compatible = "nxp,pca9555";
+ reg = <0x23>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ ds1672: rtc@68 {
+ compatible = "dallas,ds1672";
+ reg = <0x68>;
+ };
+};
+
+&i2c2 {
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c2>;
+ status = "okay";
+
+ sgtl5000: codec@a {
+ compatible = "fsl,sgtl5000";
+ reg = <0x0a>;
+ clocks = <&clks IMX6QDL_CLK_CKO>;
+ VDDA-supply = <&reg_1p8v>;
+ VDDIO-supply = <&reg_3p3v>;
+ };
+
+ tca8418: keypad@34 {
+ compatible = "ti,tca8418";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_keypad>;
+ reg = <0x34>;
+ interrupt-parent = <&gpio5>;
+ interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
+ linux,keymap = < MATRIX_KEY(0x00, 0x01, BTN_0)
+ MATRIX_KEY(0x00, 0x00, BTN_1)
+ MATRIX_KEY(0x01, 0x01, BTN_2)
+ MATRIX_KEY(0x01, 0x00, BTN_3)
+ MATRIX_KEY(0x02, 0x00, BTN_4)
+ MATRIX_KEY(0x00, 0x03, BTN_5)
+ MATRIX_KEY(0x00, 0x02, BTN_6)
+ MATRIX_KEY(0x01, 0x03, BTN_7)
+ MATRIX_KEY(0x01, 0x02, BTN_8)
+ MATRIX_KEY(0x02, 0x02, BTN_9)
+ >;
+ keypad,num-rows = <4>;
+ keypad,num-columns = <4>;
+ };
+
+ ltc3676: pmic@3c {
+ compatible = "lltc,ltc3676";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pmic>;
+ reg = <0x3c>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <8 IRQ_TYPE_EDGE_FALLING>;
+
+ regulators {
+ /* VDD_DDR (1+R1/R2 = 2.105) */
+ reg_vdd_ddr: sw2 {
+ regulator-name = "vddddr";
+ regulator-min-microvolt = <868310>;
+ regulator-max-microvolt = <1684000>;
+ lltc,fb-voltage-divider = <221000 200000>;
+ regulator-ramp-delay = <7000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ /* VDD_ARM (1+R1/R2 = 1.931) */
+ reg_vdd_arm: sw3 {
+ regulator-name = "vddarm";
+ regulator-min-microvolt = <796551>;
+ regulator-max-microvolt = <1544827>;
+ lltc,fb-voltage-divider = <243000 261000>;
+ regulator-ramp-delay = <7000>;
+ regulator-boot-on;
+ regulator-always-on;
+ linux,phandle = <&reg_vdd_arm>;
+ };
+
+ /* VDD_1P8 (1+R1/R2 = 2.505): GPS/VideoIn/ENET-PHY */
+ reg_1p8v: sw4 {
+ regulator-name = "vdd1p8";
+ regulator-min-microvolt = <1033310>;
+ regulator-max-microvolt = <2004000>;
+ lltc,fb-voltage-divider = <301000 200000>;
+ regulator-ramp-delay = <7000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ /* VDD_1P0 (1+R1/R2 = 1.39): PCIe/ENET-PHY */
+ reg_1p0v: ldo2 {
+ regulator-name = "vdd1p0";
+ regulator-min-microvolt = <950000>;
+ regulator-max-microvolt = <1050000>;
+ lltc,fb-voltage-divider = <78700 200000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ /* VDD_AUD_1P8: Audio codec */
+ reg_aud_1p8v: ldo3 {
+ regulator-name = "vdd1p8a";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ };
+
+ /* VDD_HIGH (1+R1/R2 = 4.17) */
+ reg_3p0v: ldo4 {
+ regulator-name = "vdd3p0";
+ regulator-min-microvolt = <3023250>;
+ regulator-max-microvolt = <3023250>;
+ lltc,fb-voltage-divider = <634000 200000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+ };
+ };
+};
+
+&i2c3 {
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c3>;
+ status = "okay";
+
+ egalax_ts: touchscreen@4 {
+ compatible = "eeti,egalax_ts";
+ reg = <0x04>;
+ interrupt-parent = <&gpio5>;
+ interrupts = <12 IRQ_TYPE_EDGE_FALLING>;
+ wakeup-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
+ };
+};
+
+&ldb {
+ fsl,dual-channel;
+ status = "okay";
+
+ lvds-channel@0 {
+ fsl,data-mapping = "spwg";
+ fsl,data-width = <18>;
+ status = "okay";
+
+ display-timings {
+ native-mode = <&timing0>;
+ timing0: hsd100pxn1 {
+ clock-frequency = <65000000>;
+ hactive = <1024>;
+ vactive = <768>;
+ hback-porch = <220>;
+ hfront-porch = <40>;
+ vback-porch = <21>;
+ vfront-porch = <7>;
+ hsync-len = <60>;
+ vsync-len = <10>;
+ };
+ };
+ };
+};
+
+&pcie {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pcie>;
+ reset-gpio = <&gpio4 31 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+&pwm2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pwm2>; /* MX6_DIO1 */
+ status = "disabled";
+};
+
+&pwm3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pwm3>; /* MX6_DIO2 */
+ status = "disabled";
+};
+
+&pwm4 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pwm4>;
+ status = "okay";
+};
+
+&ssi1 {
+ status = "okay";
+};
+
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart1>;
+ uart-has-rtscts;
+ rts-gpios = <&gpio7 1 GPIO_ACTIVE_HIGH>;
+ status = "okay";
+};
+
+&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart2>;
+ status = "okay";
+};
+
+&uart5 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart5>;
+ status = "okay";
+};
+
+&usbotg {
+ vbus-supply = <&reg_usb_otg_vbus>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usbotg>;
+ disable-over-current;
+ status = "okay";
+};
+
+&usbh1 {
+ vbus-supply = <&reg_usb_h1_vbus>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usbh1>;
+ status = "okay";
+};
+
+&usdhc2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usdhc2>;
+ bus-width = <8>;
+ vmmc-supply = <&reg_3p3v>;
+ non-removable;
+ status = "okay";
+};
+
+&usdhc3 {
+ pinctrl-names = "default", "state_100mhz", "state_200mhz";
+ pinctrl-0 = <&pinctrl_usdhc3>;
+ pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
+ pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
+ cd-gpios = <&gpio7 0 GPIO_ACTIVE_HIGH>;
+ vmmc-supply = <&reg_3p3v>;
+ status = "okay";
+};
+
+&wdog1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_wdog>;
+ fsl,ext-reset-output;
+};
+
+&iomuxc {
+ pinctrl_audmux: audmuxgrp {
+ fsl,pins = <
+ /* AUD4 */
+ MX6QDL_PAD_DISP0_DAT20__AUD4_TXC 0x130b0
+ MX6QDL_PAD_DISP0_DAT21__AUD4_TXD 0x110b0
+ MX6QDL_PAD_DISP0_DAT22__AUD4_TXFS 0x130b0
+ MX6QDL_PAD_DISP0_DAT23__AUD4_RXD 0x130b0
+ MX6QDL_PAD_GPIO_0__CCM_CLKO1 0x130b0 /* AUD4_MCK */
+ /* AUD6 */
+ MX6QDL_PAD_DI0_PIN2__AUD6_TXD 0x130b0
+ MX6QDL_PAD_DI0_PIN3__AUD6_TXFS 0x130b0
+ MX6QDL_PAD_DI0_PIN4__AUD6_RXD 0x130b0
+ MX6QDL_PAD_DI0_PIN15__AUD6_TXC 0x130b0
+ >;
+ };
+
+ pinctrl_ecspi3: escpi3grp {
+ fsl,pins = <
+ MX6QDL_PAD_DISP0_DAT0__ECSPI3_SCLK 0x100b1
+ MX6QDL_PAD_DISP0_DAT1__ECSPI3_MOSI 0x100b1
+ MX6QDL_PAD_DISP0_DAT2__ECSPI3_MISO 0x100b1
+ MX6QDL_PAD_DISP0_DAT3__GPIO4_IO24 0x100b1
+ >;
+ };
+
+ pinctrl_enet: enetgrp {
+ fsl,pins = <
+ MX6QDL_PAD_RGMII_RXC__RGMII_RXC 0x1b030
+ MX6QDL_PAD_RGMII_RD0__RGMII_RD0 0x1b030
+ MX6QDL_PAD_RGMII_RD1__RGMII_RD1 0x1b030
+ MX6QDL_PAD_RGMII_RD2__RGMII_RD2 0x1b030
+ MX6QDL_PAD_RGMII_RD3__RGMII_RD3 0x1b030
+ MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL 0x1b030
+ MX6QDL_PAD_RGMII_TXC__RGMII_TXC 0x1b030
+ MX6QDL_PAD_RGMII_TD0__RGMII_TD0 0x1b030
+ MX6QDL_PAD_RGMII_TD1__RGMII_TD1 0x1b030
+ MX6QDL_PAD_RGMII_TD2__RGMII_TD2 0x1b030
+ MX6QDL_PAD_RGMII_TD3__RGMII_TD3 0x1b030
+ MX6QDL_PAD_RGMII_TX_CTL__RGMII_TX_CTL 0x1b030
+ MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK 0x1b0b0
+ MX6QDL_PAD_ENET_MDIO__ENET_MDIO 0x1b0b0
+ MX6QDL_PAD_ENET_MDC__ENET_MDC 0x1b0b0
+ MX6QDL_PAD_GPIO_16__ENET_REF_CLK 0x4001b0a8
+ MX6QDL_PAD_ENET_TXD0__GPIO1_IO30 0x4001b0b0 /* PHY_RST# */
+ >;
+ };
+
+ pinctrl_flexcan: flexcangrp {
+ fsl,pins = <
+ MX6QDL_PAD_KEY_ROW2__FLEXCAN1_RX 0x1b0b1
+ MX6QDL_PAD_KEY_COL2__FLEXCAN1_TX 0x1b0b1
+ MX6QDL_PAD_GPIO_2__GPIO1_IO02 0x4001b0b0 /* CAN_STBY */
+ >;
+ };
+
+ pinctrl_gpio_leds: gpioledsgrp {
+ fsl,pins = <
+ MX6QDL_PAD_KEY_COL0__GPIO4_IO06 0x1b0b0
+ MX6QDL_PAD_KEY_ROW0__GPIO4_IO07 0x1b0b0
+ MX6QDL_PAD_KEY_ROW4__GPIO4_IO15 0x1b0b0
+ >;
+ };
+
+ pinctrl_i2c1: i2c1grp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_D21__I2C1_SCL 0x4001b8b1
+ MX6QDL_PAD_EIM_D28__I2C1_SDA 0x4001b8b1
+ >;
+ };
+
+ pinctrl_i2c2: i2c2grp {
+ fsl,pins = <
+ MX6QDL_PAD_KEY_COL3__I2C2_SCL 0x4001b8b1
+ MX6QDL_PAD_KEY_ROW3__I2C2_SDA 0x4001b8b1
+ >;
+ };
+
+ pinctrl_i2c3: i2c3grp {
+ fsl,pins = <
+ MX6QDL_PAD_GPIO_3__I2C3_SCL 0x4001b8b1
+ MX6QDL_PAD_GPIO_6__I2C3_SDA 0x4001b8b1
+ MX6QDL_PAD_GPIO_19__GPIO4_IO05 0x4001b0b0 /* DIOI2C_DIS# */
+ MX6QDL_PAD_DISP0_DAT18__GPIO5_IO12 0x0001b0b0 /* LVDS_TOUCH_IRQ# */
+ MX6QDL_PAD_DISP0_DAT19__GPIO5_IO13 0x0001b0b0 /* LVDS_BACKEN */
+ >;
+ };
+
+ pinctrl_keypad: keypadgrp {
+ fsl,pins = <
+ MX6QDL_PAD_DISP0_DAT17__GPIO5_IO11 0x0001b0b0 /* KEYPAD_IRQ# */
+ MX6QDL_PAD_DISP0_DAT9__GPIO4_IO30 0x0001b0b0 /* KEYPAD_LED_EN */
+ >;
+ };
+
+ pinctrl_pcie: pciegrp {
+ fsl,pins = <
+ MX6QDL_PAD_DISP0_DAT10__GPIO4_IO31 0x1b0b0 /* PCI_RST# */
+ MX6QDL_PAD_GPIO_17__GPIO7_IO12 0x4001b0b0 /* PCIESKT_WDIS# */
+ >;
+ };
+
+ pinctrl_pmic: pmicgrp {
+ fsl,pins = <
+ MX6QDL_PAD_GPIO_8__GPIO1_IO08 0x0001b0b0 /* PMIC_IRQ# */
+ >;
+ };
+
+ pinctrl_pps: ppsgrp {
+ fsl,pins = <
+ MX6QDL_PAD_ENET_RXD1__GPIO1_IO26 0x1b0b1
+ >;
+ };
+
+ pinctrl_pwm2: pwm2grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD1_DAT2__PWM2_OUT 0x1b0b1
+ >;
+ };
+
+ pinctrl_pwm3: pwm3grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD1_DAT1__PWM3_OUT 0x1b0b1
+ >;
+ };
+
+ pinctrl_pwm4: pwm4grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD1_CMD__PWM4_OUT 0x1b0b1
+ >;
+ };
+
+ pinctrl_uart1: uart1grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD3_DAT7__UART1_TX_DATA 0x1b0b1
+ MX6QDL_PAD_SD3_DAT6__UART1_RX_DATA 0x1b0b1
+ MX6QDL_PAD_SD3_DAT4__GPIO7_IO01 0x4001b0b1 /* TEN */
+ >;
+ };
+
+ pinctrl_uart2: uart2grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD4_DAT7__UART2_TX_DATA 0x1b0b1
+ MX6QDL_PAD_SD4_DAT4__UART2_RX_DATA 0x1b0b1
+ >;
+ };
+
+ pinctrl_uart5: uart5grp {
+ fsl,pins = <
+ MX6QDL_PAD_KEY_COL1__UART5_TX_DATA 0x1b0b1
+ MX6QDL_PAD_KEY_ROW1__UART5_RX_DATA 0x1b0b1
+ >;
+ };
+
+ pinctrl_usbh1: usbh1grp {
+ fsl,pins = <
+ MX6QDL_PAD_GPIO_9__GPIO1_IO09 0x4001b0b0 /* USBHUB_RST# */
+ >;
+ };
+
+ pinctrl_usbotg: usbotggrp {
+ fsl,pins = <
+ MX6QDL_PAD_GPIO_1__USB_OTG_ID 0x17059
+ MX6QDL_PAD_EIM_D22__GPIO3_IO22 0x1b0b0 /* PWR_EN */
+ MX6QDL_PAD_KEY_COL4__GPIO4_IO14 0x1b0b0 /* OC */
+ >;
+ };
+
+ pinctrl_usdhc2: usdhc2grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD2_CMD__SD2_CMD 0x170f9
+ MX6QDL_PAD_SD2_CLK__SD2_CLK 0x100f9
+ MX6QDL_PAD_SD2_DAT0__SD2_DATA0 0x170f9
+ MX6QDL_PAD_SD2_DAT1__SD2_DATA1 0x170f9
+ MX6QDL_PAD_SD2_DAT2__SD2_DATA2 0x170f9
+ MX6QDL_PAD_SD2_DAT3__SD2_DATA3 0x170f9
+ MX6QDL_PAD_NANDF_D4__SD2_DATA4 0x170f9
+ MX6QDL_PAD_NANDF_D5__SD2_DATA5 0x170f9
+ MX6QDL_PAD_NANDF_D6__SD2_DATA6 0x170f9
+ MX6QDL_PAD_NANDF_D7__SD2_DATA7 0x170f9
+ >;
+ };
+
+ pinctrl_usdhc3: usdhc3grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD3_CMD__SD3_CMD 0x17059
+ MX6QDL_PAD_SD3_CLK__SD3_CLK 0x10059
+ MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x17059
+ MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x17059
+ MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x17059
+ MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x17059
+ MX6QDL_PAD_SD3_DAT5__GPIO7_IO00 0x17059 /* CD */
+ MX6QDL_PAD_NANDF_CS1__SD3_VSELECT 0x17059
+ >;
+ };
+
+ pinctrl_usdhc3_100mhz: usdhc3grp100mhz {
+ fsl,pins = <
+ MX6QDL_PAD_SD3_CMD__SD3_CMD 0x170b9
+ MX6QDL_PAD_SD3_CLK__SD3_CLK 0x100b9
+ MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x170b9
+ MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x170b9
+ MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x170b9
+ MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x170b9
+ MX6QDL_PAD_SD3_DAT5__GPIO7_IO00 0x170b9 /* CD */
+ MX6QDL_PAD_NANDF_CS1__SD3_VSELECT 0x170b9
+ >;
+ };
+
+ pinctrl_usdhc3_200mhz: usdhc3grp200mhz {
+ fsl,pins = <
+ MX6QDL_PAD_SD3_CMD__SD3_CMD 0x170f9
+ MX6QDL_PAD_SD3_CLK__SD3_CLK 0x100f9
+ MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x170f9
+ MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x170f9
+ MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x170f9
+ MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x170f9
+ MX6QDL_PAD_SD3_DAT5__GPIO7_IO00 0x170f9 /* CD */
+ MX6QDL_PAD_NANDF_CS1__SD3_VSELECT 0x170f9
+ >;
+ };
+
+ pinctrl_wdog: wdoggrp {
+ fsl,pins = <
+ MX6QDL_PAD_DISP0_DAT8__WDOG1_B 0x1b0b0
+ >;
+ };
+};
diff --git a/arch/arm/boot/dts/imx6qdl-icore-rqs.dtsi b/arch/arm/boot/dts/imx6qdl-icore-rqs.dtsi
index 5fab5be414fe..7ca291e9dbdb 100644
--- a/arch/arm/boot/dts/imx6qdl-icore-rqs.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-icore-rqs.dtsi
@@ -184,7 +184,6 @@
};
&ssi1 {
- fsl,mode = "i2s-slave";
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6qdl-microsom-ar8035.dtsi b/arch/arm/boot/dts/imx6qdl-microsom-ar8035.dtsi
index a9b207751a02..900e8c781f91 100644
--- a/arch/arm/boot/dts/imx6qdl-microsom-ar8035.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-microsom-ar8035.dtsi
@@ -46,7 +46,7 @@
pinctrl-0 = <&pinctrl_microsom_enet_ar8035>;
phy-mode = "rgmii";
phy-reset-duration = <2>;
- phy-reset-gpios = <&gpio4 15 0>;
+ phy-reset-gpios = <&gpio4 15 GPIO_ACTIVE_LOW>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6qdl-nitrogen6_max.dtsi b/arch/arm/boot/dts/imx6qdl-nitrogen6_max.dtsi
index bad3c9f9eeac..b63134e3b51a 100644
--- a/arch/arm/boot/dts/imx6qdl-nitrogen6_max.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-nitrogen6_max.dtsi
@@ -408,7 +408,7 @@
};
rtc: rtc@68 {
- compatible = "st,rv4162";
+ compatible = "microcrystal,rv4162";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_rv4162>;
reg = <0x68>;
diff --git a/arch/arm/boot/dts/imx6qdl-nitrogen6_som2.dtsi b/arch/arm/boot/dts/imx6qdl-nitrogen6_som2.dtsi
index 559da17297ef..a24e4f1911ab 100644
--- a/arch/arm/boot/dts/imx6qdl-nitrogen6_som2.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-nitrogen6_som2.dtsi
@@ -326,7 +326,7 @@
};
rtc@68 {
- compatible = "st,rv4162";
+ compatible = "microcrystal,rv4162";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_rv4162>;
reg = <0x68>;
@@ -507,7 +507,7 @@
pinctrl_pcie: pciegrp {
fsl,pins = <
/* PCIe reset */
- MX6QDL_PAD_EIM_BCLK__GPIO6_IO31 0x030b0
+ MX6QDL_PAD_EIM_DA0__GPIO3_IO00 0x030b0
MX6QDL_PAD_EIM_DA4__GPIO3_IO04 0x030b0
>;
};
@@ -668,7 +668,7 @@
&pcie {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pcie>;
- reset-gpio = <&gpio6 31 GPIO_ACTIVE_LOW>;
+ reset-gpio = <&gpio3 0 GPIO_ACTIVE_LOW>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
index 70772ebadd4d..d309a4d0eb08 100644
--- a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
@@ -108,6 +108,18 @@
startup-delay-us = <70000>;
enable-active-high;
};
+
+ reg_usb_h1_vbus: regulator@5 {
+ compatible = "regulator-fixed";
+ reg = <5>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usbh1>;
+ regulator-name = "usb_h1_vbus";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio7 12 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
};
gpio-keys {
@@ -271,7 +283,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet>;
phy-mode = "rgmii";
- phy-reset-gpios = <&gpio1 27 0>;
+ phy-reset-gpios = <&gpio1 27 GPIO_ACTIVE_LOW>;
txen-skew-ps = <0>;
txc-skew-ps = <3000>;
rxdv-skew-ps = <0>;
@@ -515,6 +527,12 @@
>;
};
+ pinctrl_usbh1: usbh1grp {
+ fsl,pins = <
+ MX6QDL_PAD_GPIO_17__GPIO7_IO12 0x030b0
+ >;
+ };
+
pinctrl_usbotg: usbotggrp {
fsl,pins = <
MX6QDL_PAD_GPIO_1__USB_OTG_ID 0x17059
@@ -629,6 +647,7 @@
};
&usbh1 {
+ vbus-supply = <&reg_usb_h1_vbus>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi b/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi
index 6e5cb6a99550..d81b0078a100 100644
--- a/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi
@@ -374,7 +374,7 @@
&pcie {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pcie>;
- reset-gpio = <&gpio4 17 0>;
+ reset-gpio = <&gpio4 17 GPIO_ACTIVE_LOW>;
status = "disabled";
};
diff --git a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
index a2a714d199ea..6a7594e5d183 100644
--- a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
@@ -108,6 +108,76 @@
default-brightness-level = <7>;
status = "okay";
};
+
+ i2cmux {
+ compatible = "i2c-mux-gpio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c3mux>;
+ mux-gpios = <&gpio5 4 0>;
+ i2c-parent = <&i2c3>;
+ idle-state = <0>;
+
+ i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ adv7180: camera@21 {
+ compatible = "adi,adv7180";
+ reg = <0x21>;
+ powerdown-gpios = <&max7310_b 2 GPIO_ACTIVE_LOW>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <27 IRQ_TYPE_LEVEL_LOW>;
+
+ port {
+ adv7180_to_ipu1_csi0_mux: endpoint {
+ remote-endpoint = <&ipu1_csi0_mux_from_parallel_sensor>;
+ bus-width = <8>;
+ };
+ };
+ };
+
+ max7310_a: gpio@30 {
+ compatible = "maxim,max7310";
+ reg = <0x30>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ max7310_b: gpio@32 {
+ compatible = "maxim,max7310";
+ reg = <0x32>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_max7310>;
+ reset-gpios = <&gpio1 15 GPIO_ACTIVE_LOW>;
+ };
+
+ max7310_c: gpio@34 {
+ compatible = "maxim,max7310";
+ reg = <0x34>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+ };
+ };
+};
+
+&ipu1_csi0_from_ipu1_csi0_mux {
+ bus-width = <8>;
+};
+
+&ipu1_csi0_mux_from_parallel_sensor {
+ remote-endpoint = <&adv7180_to_ipu1_csi0_mux>;
+ bus-width = <8>;
+};
+
+&ipu1_csi0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ipu1_csi0>;
};
&clks {
@@ -290,27 +360,6 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c3>;
status = "okay";
-
- max7310_a: gpio@30 {
- compatible = "maxim,max7310";
- reg = <0x30>;
- gpio-controller;
- #gpio-cells = <2>;
- };
-
- max7310_b: gpio@32 {
- compatible = "maxim,max7310";
- reg = <0x32>;
- gpio-controller;
- #gpio-cells = <2>;
- };
-
- max7310_c: gpio@34 {
- compatible = "maxim,max7310";
- reg = <0x34>;
- gpio-controller;
- #gpio-cells = <2>;
- };
};
&iomuxc {
@@ -418,12 +467,52 @@
>;
};
+ pinctrl_i2c3mux: i2c3muxgrp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_A24__GPIO5_IO04 0x0b0b1
+ >;
+ };
+
+ pinctrl_ipu1_csi0: ipu1csi0grp {
+ fsl,pins = <
+ MX6QDL_PAD_CSI0_DAT12__IPU1_CSI0_DATA12 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT13__IPU1_CSI0_DATA13 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT14__IPU1_CSI0_DATA14 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT15__IPU1_CSI0_DATA15 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT16__IPU1_CSI0_DATA16 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT17__IPU1_CSI0_DATA17 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT18__IPU1_CSI0_DATA18 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT19__IPU1_CSI0_DATA19 0x1b0b0
+ MX6QDL_PAD_CSI0_PIXCLK__IPU1_CSI0_PIXCLK 0x1b0b0
+ MX6QDL_PAD_CSI0_MCLK__IPU1_CSI0_HSYNC 0x1b0b0
+ MX6QDL_PAD_CSI0_VSYNC__IPU1_CSI0_VSYNC 0x1b0b0
+ >;
+ };
+
+ pinctrl_max7310: max7310grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD2_DAT0__GPIO1_IO15 0x1b0b0
+ >;
+ };
+
pinctrl_pwm3: pwm1grp {
fsl,pins = <
MX6QDL_PAD_SD4_DAT1__PWM3_OUT 0x1b0b1
>;
};
+ pinctrl_gpt_input_capture0: gptinputcapture0grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD1_DAT0__GPT_CAPTURE1 0x1b0b0
+ >;
+ };
+
+ pinctrl_gpt_input_capture1: gptinputcapture1grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD1_DAT1__GPT_CAPTURE2 0x1b0b0
+ >;
+ };
+
pinctrl_spdif: spdifgrp {
fsl,pins = <
MX6QDL_PAD_KEY_COL3__SPDIF_IN 0x1b0b0
diff --git a/arch/arm/boot/dts/imx6qdl-sabrelite.dtsi b/arch/arm/boot/dts/imx6qdl-sabrelite.dtsi
index 84131794e97b..756c5054f047 100644
--- a/arch/arm/boot/dts/imx6qdl-sabrelite.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabrelite.dtsi
@@ -39,6 +39,8 @@
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
+
+#include <dt-bindings/clock/imx6qdl-clock.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
@@ -94,6 +96,54 @@
pinctrl-0 = <&pinctrl_can_xcvr>;
gpio = <&gpio1 2 GPIO_ACTIVE_LOW>;
};
+
+ reg_1p5v: regulator@4 {
+ compatible = "regulator-fixed";
+ reg = <4>;
+ regulator-name = "1P5V";
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-always-on;
+ };
+
+ reg_1p8v: regulator@5 {
+ compatible = "regulator-fixed";
+ reg = <5>;
+ regulator-name = "1P8V";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
+ reg_2p8v: regulator@6 {
+ compatible = "regulator-fixed";
+ reg = <6>;
+ regulator-name = "2P8V";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-always-on;
+ };
+
+ reg_usb_h1_vbus: regulator@7 {
+ compatible = "regulator-fixed";
+ reg = <7>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usbh1>;
+ regulator-name = "usb_h1_vbus";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio7 12 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+ };
+
+ mipi_xclk: mipi_xclk {
+ compatible = "pwm-clock";
+ #clock-cells = <0>;
+ clock-frequency = <22000000>;
+ clock-output-names = "mipi_pwm3";
+ pwms = <&pwm3 0 45>; /* 1 / 45 ns = 22 MHz */
+ status = "okay";
};
gpio-keys {
@@ -220,6 +270,22 @@
};
};
+&ipu1_csi0_from_ipu1_csi0_mux {
+ bus-width = <8>;
+ data-shift = <12>; /* Lines 19:12 used */
+ hsync-active = <1>;
+ vync-active = <1>;
+};
+
+&ipu1_csi0_mux_from_parallel_sensor {
+ remote-endpoint = <&ov5642_to_ipu1_csi0_mux>;
+};
+
+&ipu1_csi0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ipu1_csi0>;
+};
+
&audmux {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_audmux>;
@@ -270,9 +336,6 @@
txd1-skew-ps = <0>;
txd2-skew-ps = <0>;
txd3-skew-ps = <0>;
- interrupts-extended = <&gpio1 6 IRQ_TYPE_LEVEL_HIGH>,
- <&intc 0 119 IRQ_TYPE_LEVEL_HIGH>;
- fsl,err006687-workaround-present;
status = "okay";
};
@@ -301,6 +364,53 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c2>;
status = "okay";
+
+ ov5640: camera@40 {
+ compatible = "ovti,ov5640";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ov5640>;
+ reg = <0x40>;
+ clocks = <&mipi_xclk>;
+ clock-names = "xclk";
+ DOVDD-supply = <&reg_1p8v>;
+ AVDD-supply = <&reg_2p8v>;
+ DVDD-supply = <&reg_1p5v>;
+ reset-gpios = <&gpio2 5 GPIO_ACTIVE_LOW>; /* NANDF_D5 */
+ powerdown-gpios = <&gpio6 9 GPIO_ACTIVE_HIGH>; /* NANDF_WP_B */
+
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ov5640_to_mipi_csi2: endpoint {
+ remote-endpoint = <&mipi_csi2_in>;
+ clock-lanes = <0>;
+ data-lanes = <1 2>;
+ };
+ };
+ };
+
+ ov5642: camera@42 {
+ compatible = "ovti,ov5642";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ov5642>;
+ clocks = <&clks IMX6QDL_CLK_CKO2>;
+ clock-names = "xclk";
+ reg = <0x42>;
+ reset-gpios = <&gpio1 8 GPIO_ACTIVE_LOW>;
+ powerdown-gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
+ gp-gpios = <&gpio1 16 GPIO_ACTIVE_HIGH>;
+ status = "disabled";
+
+ port {
+ ov5642_to_ipu1_csi0_mux: endpoint {
+ remote-endpoint = <&ipu1_csi0_mux_from_parallel_sensor>;
+ bus-width = <8>;
+ hsync-active = <1>;
+ vsync-active = <1>;
+ };
+ };
+ };
};
&i2c3 {
@@ -373,7 +483,6 @@
MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL 0x1b030
/* Phy reset */
MX6QDL_PAD_EIM_D23__GPIO3_IO23 0x000b0
- MX6QDL_PAD_GPIO_6__ENET_IRQ 0x000b1
>;
};
@@ -415,6 +524,23 @@
>;
};
+ pinctrl_ipu1_csi0: ipu1csi0grp {
+ fsl,pins = <
+ MX6QDL_PAD_CSI0_DAT12__IPU1_CSI0_DATA12 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT13__IPU1_CSI0_DATA13 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT14__IPU1_CSI0_DATA14 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT15__IPU1_CSI0_DATA15 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT16__IPU1_CSI0_DATA16 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT17__IPU1_CSI0_DATA17 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT18__IPU1_CSI0_DATA18 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT19__IPU1_CSI0_DATA19 0x1b0b0
+ MX6QDL_PAD_CSI0_PIXCLK__IPU1_CSI0_PIXCLK 0x1b0b0
+ MX6QDL_PAD_CSI0_MCLK__IPU1_CSI0_HSYNC 0x1b0b0
+ MX6QDL_PAD_CSI0_VSYNC__IPU1_CSI0_VSYNC 0x1b0b0
+ MX6QDL_PAD_CSI0_DATA_EN__IPU1_CSI0_DATA_EN 0x1b0b0
+ >;
+ };
+
pinctrl_j15: j15grp {
fsl,pins = <
MX6QDL_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK 0x10
@@ -448,6 +574,22 @@
>;
};
+ pinctrl_ov5640: ov5640grp {
+ fsl,pins = <
+ MX6QDL_PAD_NANDF_D5__GPIO2_IO05 0x000b0
+ MX6QDL_PAD_NANDF_WP_B__GPIO6_IO09 0x0b0b0
+ >;
+ };
+
+ pinctrl_ov5642: ov5642grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD1_DAT0__GPIO1_IO16 0x1b0b0
+ MX6QDL_PAD_GPIO_6__GPIO1_IO06 0x1b0b0
+ MX6QDL_PAD_GPIO_8__GPIO1_IO08 0x130b0
+ MX6QDL_PAD_GPIO_3__CCM_CLKO2 0x000b0
+ >;
+ };
+
pinctrl_pwm1: pwm1grp {
fsl,pins = <
MX6QDL_PAD_SD1_DAT3__PWM1_OUT 0x1b0b1
@@ -480,6 +622,12 @@
>;
};
+ pinctrl_usbh1: usbh1grp {
+ fsl,pins = <
+ MX6QDL_PAD_GPIO_17__GPIO7_IO12 0x030b0
+ >;
+ };
+
pinctrl_usbotg: usbotggrp {
fsl,pins = <
MX6QDL_PAD_GPIO_1__USB_OTG_ID 0x17059
@@ -575,6 +723,7 @@
};
&usbh1 {
+ vbus-supply = <&reg_usb_h1_vbus>;
status = "okay";
};
@@ -602,3 +751,17 @@
vmmc-supply = <&reg_3p3v>;
status = "okay";
};
+
+&mipi_csi {
+ status = "okay";
+
+ port@0 {
+ reg = <0>;
+
+ mipi_csi2_in: endpoint {
+ remote-endpoint = <&ov5640_to_mipi_csi2>;
+ clock-lanes = <0>;
+ data-lanes = <1 2>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
index 58055ceec6dc..b72b6fa47580 100644
--- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
@@ -10,6 +10,7 @@
* http://www.gnu.org/copyleft/gpl.html
*/
+#include <dt-bindings/clock/imx6qdl-clock.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
@@ -146,6 +147,36 @@
};
};
+&ipu1_csi0_from_ipu1_csi0_mux {
+ bus-width = <8>;
+ data-shift = <12>; /* Lines 19:12 used */
+ hsync-active = <1>;
+ vsync-active = <1>;
+};
+
+&ipu1_csi0_mux_from_parallel_sensor {
+ remote-endpoint = <&ov5642_to_ipu1_csi0_mux>;
+};
+
+&ipu1_csi0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ipu1_csi0>;
+};
+
+&mipi_csi {
+ status = "okay";
+
+ port@0 {
+ reg = <0>;
+
+ mipi_csi2_in: endpoint {
+ remote-endpoint = <&ov5640_to_mipi_csi2>;
+ clock-lanes = <0>;
+ data-lanes = <1 2>;
+ };
+ };
+};
+
&audmux {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_audmux>;
@@ -178,7 +209,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet>;
phy-mode = "rgmii";
- phy-reset-gpios = <&gpio1 25 0>;
+ phy-reset-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>;
status = "okay";
};
@@ -213,7 +244,32 @@
0x8014 /* 4:FN_DMICCDAT */
0x0000 /* 5:Default */
>;
- };
+ };
+
+ ov5642: camera@3c {
+ compatible = "ovti,ov5642";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ov5642>;
+ clocks = <&clks IMX6QDL_CLK_CKO>;
+ clock-names = "xclk";
+ reg = <0x3c>;
+ DOVDD-supply = <&vgen4_reg>; /* 1.8v */
+ AVDD-supply = <&vgen3_reg>; /* 2.8v, rev C board is VGEN3
+ rev B board is VGEN5 */
+ DVDD-supply = <&vgen2_reg>; /* 1.5v*/
+ powerdown-gpios = <&gpio1 16 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio1 17 GPIO_ACTIVE_LOW>;
+ status = "disabled";
+
+ port {
+ ov5642_to_ipu1_csi0_mux: endpoint {
+ remote-endpoint = <&ipu1_csi0_mux_from_parallel_sensor>;
+ bus-width = <8>;
+ hsync-active = <1>;
+ vsync-active = <1>;
+ };
+ };
+ };
};
&i2c2 {
@@ -222,6 +278,32 @@
pinctrl-0 = <&pinctrl_i2c2>;
status = "okay";
+ ov5640: camera@3c {
+ compatible = "ovti,ov5640";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ov5640>;
+ reg = <0x3c>;
+ clocks = <&clks IMX6QDL_CLK_CKO>;
+ clock-names = "xclk";
+ DOVDD-supply = <&vgen4_reg>; /* 1.8v */
+ AVDD-supply = <&vgen3_reg>; /* 2.8v, rev C board is VGEN3
+ rev B board is VGEN5 */
+ DVDD-supply = <&vgen2_reg>; /* 1.5v*/
+ powerdown-gpios = <&gpio1 19 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio1 20 GPIO_ACTIVE_LOW>;
+
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ov5640_to_mipi_csi2: endpoint {
+ remote-endpoint = <&mipi_csi2_in>;
+ clock-lanes = <0>;
+ data-lanes = <1 2>;
+ };
+ };
+ };
+
pmic: pfuze100@08 {
compatible = "fsl,pfuze100";
reg = <0x08>;
@@ -425,6 +507,36 @@
>;
};
+ pinctrl_ipu1_csi0: ipu1csi0grp {
+ fsl,pins = <
+ MX6QDL_PAD_CSI0_DAT12__IPU1_CSI0_DATA12 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT13__IPU1_CSI0_DATA13 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT14__IPU1_CSI0_DATA14 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT15__IPU1_CSI0_DATA15 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT16__IPU1_CSI0_DATA16 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT17__IPU1_CSI0_DATA17 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT18__IPU1_CSI0_DATA18 0x1b0b0
+ MX6QDL_PAD_CSI0_DAT19__IPU1_CSI0_DATA19 0x1b0b0
+ MX6QDL_PAD_CSI0_PIXCLK__IPU1_CSI0_PIXCLK 0x1b0b0
+ MX6QDL_PAD_CSI0_MCLK__IPU1_CSI0_HSYNC 0x1b0b0
+ MX6QDL_PAD_CSI0_VSYNC__IPU1_CSI0_VSYNC 0x1b0b0
+ >;
+ };
+
+ pinctrl_ov5640: ov5640grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD1_DAT2__GPIO1_IO19 0x1b0b0
+ MX6QDL_PAD_SD1_CLK__GPIO1_IO20 0x1b0b0
+ >;
+ };
+
+ pinctrl_ov5642: ov5642grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD1_DAT0__GPIO1_IO16 0x1b0b0
+ MX6QDL_PAD_SD1_DAT1__GPIO1_IO17 0x1b0b0
+ >;
+ };
+
pinctrl_pcie: pciegrp {
fsl,pins = <
MX6QDL_PAD_GPIO_17__GPIO7_IO12 0x1b0b0
diff --git a/arch/arm/boot/dts/imx6qdl-tx6.dtsi b/arch/arm/boot/dts/imx6qdl-tx6.dtsi
index 1691714f13a2..c6bec97fbeaf 100644
--- a/arch/arm/boot/dts/imx6qdl-tx6.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-tx6.dtsi
@@ -133,8 +133,7 @@
regulator-max-microvolt = <3300000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_flexcan_xcvr>;
- gpio = <&gpio4 21 GPIO_ACTIVE_HIGH>;
- enable-active-low;
+ gpio = <&gpio4 21 GPIO_ACTIVE_LOW>;
};
reg_lcd0_pwr: regulator-lcd0-pwr {
@@ -249,7 +248,7 @@
<&clks IMX6QDL_CLK_ENET_REF>;
clock-names = "ipg", "ahb", "ptp", "enet_out";
phy-mode = "rmii";
- phy-reset-gpios = <&gpio7 6 GPIO_ACTIVE_HIGH>;
+ phy-reset-gpios = <&gpio7 6 GPIO_ACTIVE_LOW>;
phy-handle = <&etnphy>;
phy-supply = <&reg_3v3_etn>;
status = "okay";
diff --git a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
index 82dc5744ae19..b4fa7f1d63da 100644
--- a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
@@ -88,6 +88,7 @@
clocks = <&clks IMX6QDL_CLK_CKO>;
VDDA-supply = <&reg_2p5v>;
VDDIO-supply = <&reg_3p3v>;
+ lrclk-strength = <3>;
};
};
@@ -208,7 +209,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet>;
phy-mode = "rgmii";
- phy-reset-gpios = <&gpio3 29 0>;
+ phy-reset-gpios = <&gpio3 29 GPIO_ACTIVE_LOW>;
interrupts-extended = <&gpio1 6 IRQ_TYPE_LEVEL_HIGH>,
<&intc 0 119 IRQ_TYPE_LEVEL_HIGH>;
fsl,err006687-workaround-present;
diff --git a/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi b/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
index 5d94b5ee6aa0..eeb7679fd348 100644
--- a/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
@@ -59,6 +59,14 @@
pinctrl-0 = <&pinctrl_mdio1>;
gpios = <&gpio6 5 GPIO_ACTIVE_HIGH
&gpio6 4 GPIO_ACTIVE_HIGH>;
+
+ phy: ethernet-phy@0 {
+ pinctrl-0 = <&pinctrl_rmii_phy_irq>;
+ pinctrl-names = "default";
+ reg = <0>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <30 IRQ_TYPE_LEVEL_LOW>;
+ };
};
reg_28p0v: regulator-28p0v {
@@ -615,14 +623,106 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet>;
phy-mode = "rmii";
+ phy-handle = <&phy>;
phy-reset-gpios = <&gpio1 23 GPIO_ACTIVE_LOW>;
phy-reset-duration = <100>;
phy-supply = <&reg_3p3v>;
status = "okay";
- fixed-link {
- speed = <100>;
- full-duplex;
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ switch: switch@0 {
+ compatible = "marvell,mv88e6085";
+ pinctrl-0 = <&pinctrl_switch_irq>;
+ pinctrl-names = "default";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ dsa,member = <0 0>;
+ eeprom-length = <512>;
+ interrupt-parent = <&gpio6>;
+ interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ label = "gigabit_proc";
+ phy-handle = <&switchphy0>;
+ };
+
+ port@1 {
+ reg = <1>;
+ label = "netaux";
+ phy-handle = <&switchphy1>;
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "cpu";
+ ethernet = <&fec>;
+
+ fixed-link {
+ speed = <100>;
+ full-duplex;
+ };
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "netright";
+ phy-handle = <&switchphy3>;
+ };
+
+ port@4 {
+ reg = <4>;
+ label = "netleft";
+ phy-handle = <&switchphy4>;
+ };
+ };
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ switchphy0: switchphy@0 {
+ reg = <0>;
+ interrupt-parent = <&switch>;
+ interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ switchphy1: switchphy@1 {
+ reg = <1>;
+ interrupt-parent = <&switch>;
+ interrupts = <1 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ switchphy2: switchphy@2 {
+ reg = <2>;
+ interrupt-parent = <&switch>;
+ interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ switchphy3: switchphy@3 {
+ reg = <3>;
+ interrupt-parent = <&switch>;
+ interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ switchphy4: switchphy@4 {
+ reg = <4>;
+ interrupt-parent = <&switch>;
+ interrupts = <4 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+ };
};
};
@@ -840,6 +940,12 @@
>;
};
+ pinctrl_switch_irq: switchgrp {
+ fsl,pins = <
+ MX6QDL_PAD_CSI0_DAT17__GPIO6_IO03 0x4001b000
+ >;
+ };
+
pinctrl_tc358767: tc358767grp {
fsl,pins = <
MX6QDL_PAD_GPIO_9__GPIO1_IO09 0x10
diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index e426faa9c243..8884b4a3cafb 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -156,7 +156,7 @@
<&clks IMX6QDL_CLK_GPU3D_CORE>,
<&clks IMX6QDL_CLK_GPU3D_SHADER>;
clock-names = "bus", "core", "shader";
- power-domains = <&gpc 1>;
+ power-domains = <&pd_pu>;
};
gpu_2d: gpu@00134000 {
@@ -166,7 +166,7 @@
clocks = <&clks IMX6QDL_CLK_GPU2D_AXI>,
<&clks IMX6QDL_CLK_GPU2D_CORE>;
clock-names = "bus", "core";
- power-domains = <&gpc 1>;
+ power-domains = <&pd_pu>;
};
timer@00a00600 {
@@ -434,7 +434,7 @@
clocks = <&clks IMX6QDL_CLK_VPU_AXI>,
<&clks IMX6QDL_CLK_MMDC_CH0_AXI>;
clock-names = "per", "ahb";
- power-domains = <&gpc 1>;
+ power-domains = <&pd_pu>;
resets = <&src 1>;
iram = <&ocram>;
};
@@ -644,6 +644,7 @@
anatop-min-bit-val = <4>;
anatop-min-voltage = <800000>;
anatop-max-voltage = <1375000>;
+ anatop-enable-bit = <0>;
};
regulator-3p0 {
@@ -658,6 +659,7 @@
anatop-min-bit-val = <0>;
anatop-min-voltage = <2625000>;
anatop-max-voltage = <3400000>;
+ anatop-enable-bit = <0>;
};
regulator-2p5 {
@@ -672,6 +674,7 @@
anatop-min-bit-val = <0>;
anatop-min-voltage = <2100000>;
anatop-max-voltage = <2875000>;
+ anatop-enable-bit = <0>;
};
reg_arm: regulator-vddcore {
@@ -766,6 +769,7 @@
compatible = "syscon-poweroff";
regmap = <&snvs>;
offset = <0x38>;
+ value = <0x60>;
mask = <0x60>;
status = "disabled";
};
@@ -797,19 +801,39 @@
interrupts = <0 89 IRQ_TYPE_LEVEL_HIGH>,
<0 90 IRQ_TYPE_LEVEL_HIGH>;
interrupt-parent = <&intc>;
- pu-supply = <&reg_pu>;
- clocks = <&clks IMX6QDL_CLK_GPU3D_CORE>,
- <&clks IMX6QDL_CLK_GPU3D_SHADER>,
- <&clks IMX6QDL_CLK_GPU2D_CORE>,
- <&clks IMX6QDL_CLK_GPU2D_AXI>,
- <&clks IMX6QDL_CLK_OPENVG_AXI>,
- <&clks IMX6QDL_CLK_VPU_AXI>;
- #power-domain-cells = <1>;
+ clocks = <&clks IMX6QDL_CLK_IPG>;
+ clock-names = "ipg";
+
+ pgc {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ power-domain@0 {
+ reg = <0>;
+ #power-domain-cells = <0>;
+ };
+ pd_pu: power-domain@1 {
+ reg = <1>;
+ #power-domain-cells = <0>;
+ power-supply = <&reg_pu>;
+ clocks = <&clks IMX6QDL_CLK_GPU3D_CORE>,
+ <&clks IMX6QDL_CLK_GPU3D_SHADER>,
+ <&clks IMX6QDL_CLK_GPU2D_CORE>,
+ <&clks IMX6QDL_CLK_GPU2D_AXI>,
+ <&clks IMX6QDL_CLK_OPENVG_AXI>,
+ <&clks IMX6QDL_CLK_VPU_AXI>;
+ };
+ };
};
gpr: iomuxc-gpr@020e0000 {
- compatible = "fsl,imx6q-iomuxc-gpr", "syscon";
+ compatible = "fsl,imx6q-iomuxc-gpr", "syscon", "simple-mfd";
reg = <0x020e0000 0x38>;
+
+ mux: mux-controller {
+ compatible = "mmio-mux";
+ #mux-control-cells = <1>;
+ };
};
iomuxc: iomuxc@020e0000 {
@@ -1135,7 +1159,16 @@
};
mipi_csi: mipi@021dc000 {
+ compatible = "fsl,imx6-mipi-csi2";
reg = <0x021dc000 0x4000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <0 100 0x04>, <0 101 0x04>;
+ clocks = <&clks IMX6QDL_CLK_HSI_TX>,
+ <&clks IMX6QDL_CLK_VIDEO_27M>,
+ <&clks IMX6QDL_CLK_EIM_PODF>;
+ clock-names = "dphy", "ref", "pix";
+ status = "disabled";
};
mipi_dsi: mipi@021e0000 {
@@ -1237,6 +1270,10 @@
ipu1_csi0: port@0 {
reg = <0>;
+
+ ipu1_csi0_from_ipu1_csi0_mux: endpoint {
+ remote-endpoint = <&ipu1_csi0_mux_to_ipu1_csi0>;
+ };
};
ipu1_csi1: port@1 {
diff --git a/arch/arm/boot/dts/imx6qp-zii-rdu2.dts b/arch/arm/boot/dts/imx6qp-zii-rdu2.dts
index 882b3bd97e07..547a76677ab3 100644
--- a/arch/arm/boot/dts/imx6qp-zii-rdu2.dts
+++ b/arch/arm/boot/dts/imx6qp-zii-rdu2.dts
@@ -41,8 +41,8 @@
/dts-v1/;
-#include <imx6qp.dtsi>
-#include <imx6qdl-zii-rdu2.dtsi>
+#include "imx6qp.dtsi"
+#include "imx6qdl-zii-rdu2.dtsi"
/ {
model = "ZII RDU2+ Board";
diff --git a/arch/arm/boot/dts/imx6qp.dtsi b/arch/arm/boot/dts/imx6qp.dtsi
index 59453f2ac4ba..299d863690c5 100644
--- a/arch/arm/boot/dts/imx6qp.dtsi
+++ b/arch/arm/boot/dts/imx6qp.dtsi
@@ -120,6 +120,10 @@
<0 119 IRQ_TYPE_LEVEL_HIGH>;
};
+&gpc {
+ compatible = "fsl,imx6qp-gpc", "fsl,imx6q-gpc";
+};
+
&ipu1 {
compatible = "fsl,imx6qp-ipu", "fsl,imx6q-ipu";
fsl,prg = <&prg1>;
diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index cc9572ea2860..3f76f980947e 100644
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -530,6 +530,7 @@
anatop-min-bit-val = <4>;
anatop-min-voltage = <800000>;
anatop-max-voltage = <1375000>;
+ anatop-enable-bit = <0>;
};
regulator-3p0 {
@@ -544,6 +545,7 @@
anatop-min-bit-val = <0>;
anatop-min-voltage = <2625000>;
anatop-max-voltage = <3400000>;
+ anatop-enable-bit = <0>;
};
regulator-2p5 {
@@ -558,6 +560,7 @@
anatop-min-bit-val = <0>;
anatop-min-voltage = <2100000>;
anatop-max-voltage = <2850000>;
+ anatop-enable-bit = <0>;
};
reg_arm: regulator-vddcore {
@@ -652,6 +655,7 @@
compatible = "syscon-poweroff";
regmap = <&snvs>;
offset = <0x38>;
+ value = <0x60>;
mask = <0x60>;
status = "disabled";
};
diff --git a/arch/arm/boot/dts/imx6sx-nitrogen6sx.dts b/arch/arm/boot/dts/imx6sx-nitrogen6sx.dts
index 802da45aa551..c5578d1c1ee4 100644
--- a/arch/arm/boot/dts/imx6sx-nitrogen6sx.dts
+++ b/arch/arm/boot/dts/imx6sx-nitrogen6sx.dts
@@ -296,7 +296,7 @@
&pcie {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pcie>;
- reset-gpio = <&gpio4 10 GPIO_ACTIVE_HIGH>;
+ reset-gpio = <&gpio4 10 GPIO_ACTIVE_LOW>;
status = "okay";
};
@@ -374,7 +374,7 @@
cap-sdio-irq;
status = "okay";
- brcmf: bcrmf@1 {
+ brcmf: wifi@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
interrupt-parent = <&gpio7>;
diff --git a/arch/arm/boot/dts/imx6sx-sdb.dts b/arch/arm/boot/dts/imx6sx-sdb.dts
index d71da30c9cff..c0139d7e497a 100644
--- a/arch/arm/boot/dts/imx6sx-sdb.dts
+++ b/arch/arm/boot/dts/imx6sx-sdb.dts
@@ -128,3 +128,11 @@
reg = <1>;
};
};
+
+&reg_arm {
+ vin-supply = <&sw1a_reg>;
+};
+
+&reg_soc {
+ vin-supply = <&sw1a_reg>;
+};
diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi
index 3f1416be4c36..6c7eb54be9e2 100644
--- a/arch/arm/boot/dts/imx6sx.dtsi
+++ b/arch/arm/boot/dts/imx6sx.dtsi
@@ -587,6 +587,7 @@
anatop-min-bit-val = <4>;
anatop-min-voltage = <800000>;
anatop-max-voltage = <1375000>;
+ anatop-enable-bit = <0>;
};
regulator-3p0 {
@@ -601,6 +602,7 @@
anatop-min-bit-val = <0>;
anatop-min-voltage = <2625000>;
anatop-max-voltage = <3400000>;
+ anatop-enable-bit = <0>;
};
regulator-2p5 {
@@ -615,6 +617,7 @@
anatop-min-bit-val = <0>;
anatop-min-voltage = <2100000>;
anatop-max-voltage = <2875000>;
+ anatop-enable-bit = <0>;
};
reg_arm: regulator-vddcore {
@@ -707,6 +710,7 @@
compatible = "syscon-poweroff";
regmap = <&snvs>;
offset = <0x38>;
+ value = <0x60>;
mask = <0x60>;
status = "disabled";
};
diff --git a/arch/arm/boot/dts/imx6ul-14x14-evk.dts b/arch/arm/boot/dts/imx6ul-14x14-evk.dts
index d2be8aa3370b..9c23e017d86a 100644
--- a/arch/arm/boot/dts/imx6ul-14x14-evk.dts
+++ b/arch/arm/boot/dts/imx6ul-14x14-evk.dts
@@ -22,7 +22,7 @@
reg = <0x80000000 0x20000000>;
};
- backlight {
+ backlight_display: backlight-display {
compatible = "pwm-backlight";
pwms = <&pwm1 0 5000000>;
brightness-levels = <0 4 8 16 32 64 128 255>;
@@ -78,6 +78,17 @@
clocks = <&clks IMX6UL_CLK_SAI2>;
};
};
+
+ panel {
+ compatible = "innolux,at043tn24";
+ backlight = <&backlight_display>;
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&display_out>;
+ };
+ };
+ };
};
&clks {
@@ -139,31 +150,11 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_lcdif_dat
&pinctrl_lcdif_ctrl>;
- display = <&display0>;
status = "okay";
- display0: display {
- bits-per-pixel = <16>;
- bus-width = <24>;
-
- display-timings {
- native-mode = <&timing0>;
-
- timing0: timing0 {
- clock-frequency = <9200000>;
- hactive = <480>;
- vactive = <272>;
- hfront-porch = <8>;
- hback-porch = <4>;
- hsync-len = <41>;
- vback-porch = <2>;
- vfront-porch = <4>;
- vsync-len = <10>;
- hsync-active = <0>;
- vsync-active = <0>;
- de-active = <1>;
- pixelclk-active = <0>;
- };
+ port {
+ display_out: endpoint {
+ remote-endpoint = <&panel_in>;
};
};
};
@@ -316,7 +307,6 @@
MX6UL_PAD_ENET2_TX_DATA0__ENET2_TDATA00 0x1b0b0
MX6UL_PAD_ENET2_TX_DATA1__ENET2_TDATA01 0x1b0b0
MX6UL_PAD_ENET2_TX_CLK__ENET2_REF_CLK2 0x4001b031
- MX6UL_PAD_SNVS_TAMPER0__GPIO5_IO00 0x17059
>;
};
diff --git a/arch/arm/boot/dts/imx6ul-geam-kit.dts b/arch/arm/boot/dts/imx6ul-geam-kit.dts
deleted file mode 100644
index 142e60cab65f..000000000000
--- a/arch/arm/boot/dts/imx6ul-geam-kit.dts
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * Copyright (C) 2016 Amarula Solutions B.V.
- * Copyright (C) 2016 Engicam S.r.l.
- *
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/dts-v1/;
-
-#include <dt-bindings/gpio/gpio.h>
-#include "imx6ul-geam.dtsi"
-
-/ {
- model = "Engicam GEAM6UL";
- compatible = "engicam,imx6ul-geam", "fsl,imx6ul";
-};
-
-&can1 {
- status = "okay";
-};
-
-&can2 {
- status = "okay";
-};
-
-&lcdif {
- display = <&display0>;
- status = "okay";
-
- display0: display {
- bits-per-pixel = <16>;
- bus-width = <18>;
- status = "okay";
-
- display-timings {
- native-mode = <&timing0>;
- timing0: timing0 {
- clock-frequency = <28000000>;
- hactive = <800>;
- vactive = <480>;
- hfront-porch = <30>;
- hback-porch = <30>;
- hsync-len = <64>;
- vback-porch = <5>;
- vfront-porch = <5>;
- vsync-len = <20>;
- hsync-active = <0>;
- vsync-active = <0>;
- de-active = <1>;
- pixelclk-active = <0>;
- };
- };
- };
-};
-
-&usdhc1 {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_usdhc1>;
- status = "okay";
-};
-
-&tsc {
- measure-delay-time = <0x1ffff>;
- pre-charge-time = <0x1fff>;
- status = "okay";
-};
diff --git a/arch/arm/boot/dts/imx6ul-geam.dts b/arch/arm/boot/dts/imx6ul-geam.dts
new file mode 100644
index 000000000000..571eea7f1c6b
--- /dev/null
+++ b/arch/arm/boot/dts/imx6ul-geam.dts
@@ -0,0 +1,480 @@
+/*
+ * Copyright (C) 2016 Amarula Solutions B.V.
+ * Copyright (C) 2016 Engicam S.r.l.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include "imx6ul.dtsi"
+
+/ {
+ model = "Engicam GEAM6UL Starter Kit";
+ compatible = "engicam,imx6ul-geam", "fsl,imx6ul";
+
+ memory {
+ reg = <0x80000000 0x08000000>;
+ };
+
+ backlight {
+ compatible = "pwm-backlight";
+ pwms = <&pwm8 0 100000>;
+ brightness-levels = < 0 1 2 3 4 5 6 7 8 9
+ 10 11 12 13 14 15 16 17 18 19
+ 20 21 22 23 24 25 26 27 28 29
+ 30 31 32 33 34 35 36 37 38 39
+ 40 41 42 43 44 45 46 47 48 49
+ 50 51 52 53 54 55 56 57 58 59
+ 60 61 62 63 64 65 66 67 68 69
+ 70 71 72 73 74 75 76 77 78 79
+ 80 81 82 83 84 85 86 87 88 89
+ 90 91 92 93 94 95 96 97 98 99
+ 100>;
+ default-brightness-level = <100>;
+ };
+
+ chosen {
+ stdout-path = &uart1;
+ };
+
+ reg_1p8v: regulator-1p8v {
+ compatible = "regulator-fixed";
+ regulator-name = "1P8V";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ reg_3p3v: regulator-3p3v {
+ compatible = "regulator-fixed";
+ regulator-name = "3P3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "imx6ul-geam-sgtl5000";
+ simple-audio-card,format = "i2s";
+ simple-audio-card,bitclock-master = <&dailink_master>;
+ simple-audio-card,frame-master = <&dailink_master>;
+ simple-audio-card,widgets =
+ "Microphone", "Mic Jack",
+ "Line", "Line In",
+ "Line", "Line Out",
+ "Headphone", "Headphone Jack";
+ simple-audio-card,routing =
+ "MIC_IN", "Mic Jack",
+ "Mic Jack", "Mic Bias",
+ "Headphone Jack", "HP_OUT";
+
+ simple-audio-card,cpu {
+ sound-dai = <&sai2>;
+ };
+
+ dailink_master: simple-audio-card,codec {
+ sound-dai = <&sgtl5000>;
+ clocks = <&clks IMX6UL_CLK_SAI2>;
+ };
+ };
+};
+
+&can1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flexcan1>;
+ xceiver-supply = <&reg_3p3v>;
+ status = "okay";
+};
+
+&can2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flexcan2>;
+ xceiver-supply = <&reg_3p3v>;
+ status = "okay";
+};
+
+&fec1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_enet1>;
+ phy-mode = "rmii";
+ phy-handle = <&ethphy0>;
+ status = "okay";
+};
+
+&fec2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_enet2>;
+ phy-mode = "rmii";
+ phy-handle = <&ethphy1>;
+ status = "okay";
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethphy0: ethernet-phy@0 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <0>;
+ };
+
+ ethphy1: ethernet-phy@1 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <1>;
+ };
+ };
+};
+
+&gpmi {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpmi_nand>;
+ nand-on-flash-bbt;
+ status = "okay";
+};
+
+&i2c1 {
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c1>;
+ status = "okay";
+
+ sgtl5000: codec@a {
+ compatible = "fsl,sgtl5000";
+ reg = <0x0a>;
+ clocks = <&clks IMX6UL_CLK_OSC>;
+ clock-names = "mclk";
+ VDDA-supply = <&reg_3p3v>;
+ VDDIO-supply = <&reg_3p3v>;
+ VDDD-supply = <&reg_1p8v>;
+ };
+};
+
+&i2c2 {
+ clock_frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c2>;
+ status = "okay";
+};
+
+&lcdif {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_lcdif_dat
+ &pinctrl_lcdif_ctrl>;
+ display = <&display0>;
+ status = "okay";
+
+ display0: display {
+ bits-per-pixel = <16>;
+ bus-width = <18>;
+
+ display-timings {
+ native-mode = <&timing0>;
+ timing0: timing0 {
+ clock-frequency = <28000000>;
+ hactive = <800>;
+ vactive = <480>;
+ hfront-porch = <30>;
+ hback-porch = <30>;
+ hsync-len = <64>;
+ vback-porch = <5>;
+ vfront-porch = <5>;
+ vsync-len = <20>;
+ hsync-active = <0>;
+ vsync-active = <0>;
+ de-active = <1>;
+ pixelclk-active = <0>;
+ };
+ };
+ };
+};
+
+&pwm8 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pwm8>;
+ status = "okay";
+};
+
+&tsc {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_tsc>;
+ xnur-gpio = <&gpio1 3 GPIO_ACTIVE_LOW>;
+};
+
+&sai2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sai2>;
+ status = "okay";
+};
+
+&tsc {
+ measure-delay-time = <0x1ffff>;
+ pre-charge-time = <0x1fff>;
+ status = "okay";
+};
+
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart1>;
+ status = "okay";
+};
+
+&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart2>;
+ status = "okay";
+};
+
+&usbotg1 {
+ dr_mode = "peripheral";
+ status = "okay";
+};
+
+&usbotg2 {
+ dr_mode = "host";
+ status = "okay";
+};
+
+&usdhc1 {
+ pinctrl-names = "default", "state_100mhz", "state_200mhz";
+ pinctrl-0 = <&pinctrl_usdhc1>;
+ pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
+ pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
+ bus-width = <4>;
+ cd-gpios = <&gpio1 19 GPIO_ACTIVE_LOW>;
+ no-1-8-v;
+ status = "okay";
+};
+
+&iomuxc {
+ pinctrl_enet1: enet1grp {
+ fsl,pins = <
+ MX6UL_PAD_ENET1_RX_EN__ENET1_RX_EN 0x1b0b0
+ MX6UL_PAD_ENET1_RX_DATA0__ENET1_RDATA00 0x1b0b0
+ MX6UL_PAD_ENET1_RX_DATA1__ENET1_RDATA01 0x1b0b0
+ MX6UL_PAD_ENET1_TX_EN__ENET1_TX_EN 0x1b0b0
+ MX6UL_PAD_ENET1_TX_DATA0__ENET1_TDATA00 0x1b0b0
+ MX6UL_PAD_ENET1_TX_DATA1__ENET1_TDATA01 0x1b0b0
+ MX6UL_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 0x4001b031
+ >;
+ };
+
+ pinctrl_enet2: enet2grp {
+ fsl,pins = <
+ MX6UL_PAD_GPIO1_IO07__ENET2_MDC 0x1b0b0
+ MX6UL_PAD_GPIO1_IO06__ENET2_MDIO 0x1b0b0
+ MX6UL_PAD_ENET2_RX_EN__ENET2_RX_EN 0x1b0b0
+ MX6UL_PAD_ENET2_RX_ER__GPIO2_IO15 0x1b0b0 /* ENET_nRST */
+ MX6UL_PAD_ENET2_RX_DATA0__ENET2_RDATA00 0x1b0b0
+ MX6UL_PAD_ENET2_RX_DATA1__ENET2_RDATA01 0x1b0b0
+ MX6UL_PAD_ENET2_TX_EN__ENET2_TX_EN 0x1b0b0
+ MX6UL_PAD_ENET2_TX_DATA0__ENET2_TDATA00 0x1b0b0
+ MX6UL_PAD_ENET2_TX_DATA1__ENET2_TDATA01 0x1b0b0
+ MX6UL_PAD_GPIO1_IO05__ENET2_REF_CLK2 0x4001b031
+ >;
+ };
+
+ pinctrl_flexcan1: flexcan1grp {
+ fsl,pins = <
+ MX6UL_PAD_UART3_RTS_B__FLEXCAN1_RX 0x1b020
+ MX6UL_PAD_UART3_CTS_B__FLEXCAN1_TX 0x1b020
+ >;
+ };
+
+ pinctrl_flexcan2: flexcan2grp {
+ fsl,pins = <
+ MX6UL_PAD_UART2_RTS_B__FLEXCAN2_RX 0x1b020
+ MX6UL_PAD_UART2_CTS_B__FLEXCAN2_TX 0x1b020
+ >;
+ };
+
+ pinctrl_gpmi_nand: gpmi-nand {
+ fsl,pins = <
+ MX6UL_PAD_NAND_CLE__RAWNAND_CLE 0xb0b1
+ MX6UL_PAD_NAND_ALE__RAWNAND_ALE 0xb0b1
+ MX6UL_PAD_NAND_WP_B__RAWNAND_WP_B 0xb0b1
+ MX6UL_PAD_NAND_READY_B__RAWNAND_READY_B 0xb000
+ MX6UL_PAD_NAND_CE0_B__RAWNAND_CE0_B 0xb0b1
+ MX6UL_PAD_NAND_RE_B__RAWNAND_RE_B 0xb0b1
+ MX6UL_PAD_NAND_WE_B__RAWNAND_WE_B 0xb0b1
+ MX6UL_PAD_NAND_DATA00__RAWNAND_DATA00 0xb0b1
+ MX6UL_PAD_NAND_DATA01__RAWNAND_DATA01 0xb0b1
+ MX6UL_PAD_NAND_DATA02__RAWNAND_DATA02 0xb0b1
+ MX6UL_PAD_NAND_DATA03__RAWNAND_DATA03 0xb0b1
+ MX6UL_PAD_NAND_DATA04__RAWNAND_DATA04 0xb0b1
+ MX6UL_PAD_NAND_DATA05__RAWNAND_DATA05 0xb0b1
+ MX6UL_PAD_NAND_DATA06__RAWNAND_DATA06 0xb0b1
+ MX6UL_PAD_NAND_DATA07__RAWNAND_DATA07 0xb0b1
+ >;
+ };
+
+ pinctrl_i2c1: i2c1grp {
+ fsl,pins = <
+ MX6UL_PAD_UART4_TX_DATA__I2C1_SCL 0x4001b8b0
+ MX6UL_PAD_UART4_RX_DATA__I2C1_SDA 0x4001b8b0
+ >;
+ };
+
+ pinctrl_i2c2: i2c2grp {
+ fsl,pins = <
+ MX6UL_PAD_UART5_TX_DATA__I2C2_SCL 0x4001b8b0
+ MX6UL_PAD_UART5_RX_DATA__I2C2_SDA 0x4001b8b0
+ >;
+ };
+
+ pinctrl_lcdif_ctrl: lcdifctrlgrp {
+ fsl,pins = <
+ MX6UL_PAD_LCD_CLK__LCDIF_CLK 0x79
+ MX6UL_PAD_LCD_ENABLE__LCDIF_ENABLE 0x79
+ MX6UL_PAD_LCD_HSYNC__LCDIF_HSYNC 0x79
+ MX6UL_PAD_LCD_VSYNC__LCDIF_VSYNC 0x79
+ >;
+ };
+
+ pinctrl_lcdif_dat: lcdifdatgrp {
+ fsl,pins = <
+ MX6UL_PAD_LCD_DATA00__LCDIF_DATA00 0x79
+ MX6UL_PAD_LCD_DATA01__LCDIF_DATA01 0x79
+ MX6UL_PAD_LCD_DATA02__LCDIF_DATA02 0x79
+ MX6UL_PAD_LCD_DATA03__LCDIF_DATA03 0x79
+ MX6UL_PAD_LCD_DATA04__LCDIF_DATA04 0x79
+ MX6UL_PAD_LCD_DATA05__LCDIF_DATA05 0x79
+ MX6UL_PAD_LCD_DATA06__LCDIF_DATA06 0x79
+ MX6UL_PAD_LCD_DATA07__LCDIF_DATA07 0x79
+ MX6UL_PAD_LCD_DATA08__LCDIF_DATA08 0x79
+ MX6UL_PAD_LCD_DATA09__LCDIF_DATA09 0x79
+ MX6UL_PAD_LCD_DATA10__LCDIF_DATA10 0x79
+ MX6UL_PAD_LCD_DATA11__LCDIF_DATA11 0x79
+ MX6UL_PAD_LCD_DATA12__LCDIF_DATA12 0x79
+ MX6UL_PAD_LCD_DATA13__LCDIF_DATA13 0x79
+ MX6UL_PAD_LCD_DATA14__LCDIF_DATA14 0x79
+ MX6UL_PAD_LCD_DATA15__LCDIF_DATA15 0x79
+ MX6UL_PAD_LCD_DATA16__LCDIF_DATA16 0x79
+ MX6UL_PAD_LCD_DATA17__LCDIF_DATA17 0x79
+ >;
+ };
+
+ pinctrl_pwm8: pwm8grp {
+ fsl,pins = <
+ MX6UL_PAD_ENET1_RX_ER__PWM8_OUT 0x110b0
+ >;
+ };
+
+ pinctrl_tsc: tscgrp {
+ fsl,pin = <
+ MX6UL_PAD_GPIO1_IO01__GPIO1_IO01 0xb0
+ MX6UL_PAD_GPIO1_IO02__GPIO1_IO02 0xb0
+ MX6UL_PAD_GPIO1_IO03__GPIO1_IO03 0xb0
+ MX6UL_PAD_GPIO1_IO04__GPIO1_IO04 0xb0
+ >;
+ };
+
+ pinctrl_sai2: sai2grp {
+ fsl,pins = <
+ MX6UL_PAD_JTAG_TCK__SAI2_RX_DATA 0x130b0
+ MX6UL_PAD_JTAG_TMS__CCM_CLKO1 0x4001b031
+ MX6UL_PAD_JTAG_TDI__SAI2_TX_BCLK 0x17088
+ MX6UL_PAD_JTAG_TDO__SAI2_TX_SYNC 0x17088
+ MX6UL_PAD_JTAG_TRST_B__SAI2_TX_DATA 0x120b0
+ >;
+ };
+
+ pinctrl_uart1: uart1grp {
+ fsl,pins = <
+ MX6UL_PAD_UART1_TX_DATA__UART1_DCE_TX 0x1b0b1
+ MX6UL_PAD_UART1_RX_DATA__UART1_DCE_RX 0x1b0b1
+ >;
+ };
+
+ pinctrl_uart2: uart2grp {
+ fsl,pins = <
+ MX6UL_PAD_UART2_TX_DATA__UART2_DCE_TX 0x1b0b1
+ MX6UL_PAD_UART2_RX_DATA__UART2_DCE_RX 0x1b0b1
+ MX6UL_PAD_UART3_RX_DATA__UART2_DCE_RTS 0x1b0b1
+ MX6UL_PAD_UART3_TX_DATA__UART2_DCE_CTS 0x1b0b1
+ >;
+ };
+
+ pinctrl_usdhc1: usdhc1grp {
+ fsl,pins = <
+ MX6UL_PAD_SD1_CMD__USDHC1_CMD 0x17059
+ MX6UL_PAD_SD1_CLK__USDHC1_CLK 0x10059
+ MX6UL_PAD_SD1_DATA0__USDHC1_DATA0 0x17059
+ MX6UL_PAD_SD1_DATA1__USDHC1_DATA1 0x17059
+ MX6UL_PAD_SD1_DATA2__USDHC1_DATA2 0x17059
+ MX6UL_PAD_SD1_DATA3__USDHC1_DATA3 0x17059
+ >;
+ };
+
+ pinctrl_usdhc1_100mhz: usdhc1grp100mhz {
+ fsl,pins = <
+ MX6UL_PAD_SD1_CMD__USDHC1_CMD 0x170b9
+ MX6UL_PAD_SD1_CLK__USDHC1_CLK 0x100b9
+ MX6UL_PAD_SD1_DATA0__USDHC1_DATA0 0x170b9
+ MX6UL_PAD_SD1_DATA1__USDHC1_DATA1 0x170b9
+ MX6UL_PAD_SD1_DATA2__USDHC1_DATA2 0x170b9
+ MX6UL_PAD_SD1_DATA3__USDHC1_DATA3 0x170b9
+ >;
+ };
+
+ pinctrl_usdhc1_200mhz: usdhc1grp200mhz {
+ fsl,pins = <
+ MX6UL_PAD_SD1_CMD__USDHC1_CMD 0x170f9
+ MX6UL_PAD_SD1_CLK__USDHC1_CLK 0x100f9
+ MX6UL_PAD_SD1_DATA0__USDHC1_DATA0 0x170f9
+ MX6UL_PAD_SD1_DATA1__USDHC1_DATA1 0x170f9
+ MX6UL_PAD_SD1_DATA2__USDHC1_DATA2 0x170f9
+ MX6UL_PAD_SD1_DATA3__USDHC1_DATA3 0x170f9
+ >;
+ };
+
+ pinctrl_usdhc2: usdhc2grp {
+ fsl,pins = <
+ MX6UL_PAD_CSI_VSYNC__USDHC2_CLK 0x17070
+ MX6UL_PAD_CSI_HSYNC__USDHC2_CMD 0x10070
+ MX6UL_PAD_CSI_DATA00__USDHC2_DATA0 0x17070
+ MX6UL_PAD_CSI_DATA01__USDHC2_DATA1 0x17070
+ MX6UL_PAD_CSI_DATA02__USDHC2_DATA2 0x17070
+ MX6UL_PAD_CSI_DATA03__USDHC2_DATA3 0x17070
+ >;
+ };
+};
diff --git a/arch/arm/boot/dts/imx6ul-geam.dtsi b/arch/arm/boot/dts/imx6ul-geam.dtsi
deleted file mode 100644
index eb94d956808b..000000000000
--- a/arch/arm/boot/dts/imx6ul-geam.dtsi
+++ /dev/null
@@ -1,406 +0,0 @@
-/*
- * Copyright (C) 2016 Amarula Solutions B.V.
- * Copyright (C) 2016 Engicam S.r.l.
- *
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include <dt-bindings/gpio/gpio.h>
-#include <dt-bindings/input/input.h>
-#include "imx6ul.dtsi"
-
-/ {
- memory {
- reg = <0x80000000 0x08000000>;
- };
-
- backlight {
- compatible = "pwm-backlight";
- pwms = <&pwm8 0 100000>;
- brightness-levels = < 0 1 2 3 4 5 6 7 8 9
- 10 11 12 13 14 15 16 17 18 19
- 20 21 22 23 24 25 26 27 28 29
- 30 31 32 33 34 35 36 37 38 39
- 40 41 42 43 44 45 46 47 48 49
- 50 51 52 53 54 55 56 57 58 59
- 60 61 62 63 64 65 66 67 68 69
- 70 71 72 73 74 75 76 77 78 79
- 80 81 82 83 84 85 86 87 88 89
- 90 91 92 93 94 95 96 97 98 99
- 100>;
- default-brightness-level = <100>;
- };
-
- chosen {
- stdout-path = &uart1;
- };
-
- reg_1p8v: regulator-1p8v {
- compatible = "regulator-fixed";
- regulator-name = "1P8V";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- regulator-always-on;
- regulator-boot-on;
- };
-
- reg_3p3v: regulator-3p3v {
- compatible = "regulator-fixed";
- regulator-name = "3P3V";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- regulator-always-on;
- regulator-boot-on;
- };
-};
-
-&can1 {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_flexcan1>;
- xceiver-supply = <&reg_3p3v>;
-};
-
-&can2 {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_flexcan2>;
- xceiver-supply = <&reg_3p3v>;
-};
-
-&fec1 {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_enet1>;
- phy-mode = "rmii";
- phy-handle = <&ethphy0>;
- status = "okay";
-};
-
-&fec2 {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_enet2>;
- phy-mode = "rmii";
- phy-handle = <&ethphy1>;
- status = "okay";
-
- mdio {
- #address-cells = <1>;
- #size-cells = <0>;
-
- ethphy0: ethernet-phy@0 {
- compatible = "ethernet-phy-ieee802.3-c22";
- reg = <0>;
- };
-
- ethphy1: ethernet-phy@1 {
- compatible = "ethernet-phy-ieee802.3-c22";
- reg = <1>;
- };
- };
-};
-
-&gpmi {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_gpmi_nand>;
- nand-on-flash-bbt;
- status = "okay";
-};
-
-&i2c1 {
- clock-frequency = <100000>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_i2c1>;
- status = "okay";
-};
-
-&i2c2 {
- clock_frequency = <100000>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_i2c2>;
- status = "okay";
-};
-
-&lcdif {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_lcdif_dat
- &pinctrl_lcdif_ctrl>;
- display = <&display0>;
-};
-
-&pwm8 {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_pwm8>;
- status = "okay";
-};
-
-&tsc {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_tsc>;
- xnur-gpio = <&gpio1 3 GPIO_ACTIVE_LOW>;
-};
-
-&sai2 {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_sai2>;
- status = "okay";
-};
-
-&uart1 {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_uart1>;
- status = "okay";
-};
-
-&uart2 {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_uart2>;
- status = "okay";
-};
-
-&usbotg1 {
- dr_mode = "peripheral";
- status = "okay";
-};
-
-&usbotg2 {
- dr_mode = "host";
- status = "okay";
-};
-
-&usdhc1 {
- pinctrl-names = "default", "state_100mhz", "state_200mhz";
- pinctrl-0 = <&pinctrl_usdhc1>;
- pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
- pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
- bus-width = <4>;
- cd-gpios = <&gpio1 19 GPIO_ACTIVE_LOW>;
- no-1-8-v;
- status = "okay";
-};
-
-&iomuxc {
- pinctrl_enet1: enet1grp {
- fsl,pins = <
- MX6UL_PAD_ENET1_RX_EN__ENET1_RX_EN 0x1b0b0
- MX6UL_PAD_ENET1_RX_DATA0__ENET1_RDATA00 0x1b0b0
- MX6UL_PAD_ENET1_RX_DATA1__ENET1_RDATA01 0x1b0b0
- MX6UL_PAD_ENET1_TX_EN__ENET1_TX_EN 0x1b0b0
- MX6UL_PAD_ENET1_TX_DATA0__ENET1_TDATA00 0x1b0b0
- MX6UL_PAD_ENET1_TX_DATA1__ENET1_TDATA01 0x1b0b0
- MX6UL_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 0x4001b031
- >;
- };
-
- pinctrl_enet2: enet2grp {
- fsl,pins = <
- MX6UL_PAD_GPIO1_IO07__ENET2_MDC 0x1b0b0
- MX6UL_PAD_GPIO1_IO06__ENET2_MDIO 0x1b0b0
- MX6UL_PAD_ENET2_RX_EN__ENET2_RX_EN 0x1b0b0
- MX6UL_PAD_ENET2_RX_ER__GPIO2_IO15 0x1b0b0 /* ENET_nRST */
- MX6UL_PAD_ENET2_RX_DATA0__ENET2_RDATA00 0x1b0b0
- MX6UL_PAD_ENET2_RX_DATA1__ENET2_RDATA01 0x1b0b0
- MX6UL_PAD_ENET2_TX_EN__ENET2_TX_EN 0x1b0b0
- MX6UL_PAD_ENET2_TX_DATA0__ENET2_TDATA00 0x1b0b0
- MX6UL_PAD_ENET2_TX_DATA1__ENET2_TDATA01 0x1b0b0
- MX6UL_PAD_GPIO1_IO05__ENET2_REF_CLK2 0x4001b031
- >;
- };
-
- pinctrl_flexcan1: flexcan1grp {
- fsl,pins = <
- MX6UL_PAD_UART3_RTS_B__FLEXCAN1_RX 0x1b020
- MX6UL_PAD_UART3_CTS_B__FLEXCAN1_TX 0x1b020
- >;
- };
-
- pinctrl_flexcan2: flexcan2grp {
- fsl,pins = <
- MX6UL_PAD_UART2_RTS_B__FLEXCAN2_RX 0x1b020
- MX6UL_PAD_UART2_CTS_B__FLEXCAN2_TX 0x1b020
- >;
- };
-
- pinctrl_gpmi_nand: gpmi-nand {
- fsl,pins = <
- MX6UL_PAD_NAND_CLE__RAWNAND_CLE 0xb0b1
- MX6UL_PAD_NAND_ALE__RAWNAND_ALE 0xb0b1
- MX6UL_PAD_NAND_WP_B__RAWNAND_WP_B 0xb0b1
- MX6UL_PAD_NAND_READY_B__RAWNAND_READY_B 0xb000
- MX6UL_PAD_NAND_CE0_B__RAWNAND_CE0_B 0xb0b1
- MX6UL_PAD_NAND_RE_B__RAWNAND_RE_B 0xb0b1
- MX6UL_PAD_NAND_WE_B__RAWNAND_WE_B 0xb0b1
- MX6UL_PAD_NAND_DATA00__RAWNAND_DATA00 0xb0b1
- MX6UL_PAD_NAND_DATA01__RAWNAND_DATA01 0xb0b1
- MX6UL_PAD_NAND_DATA02__RAWNAND_DATA02 0xb0b1
- MX6UL_PAD_NAND_DATA03__RAWNAND_DATA03 0xb0b1
- MX6UL_PAD_NAND_DATA04__RAWNAND_DATA04 0xb0b1
- MX6UL_PAD_NAND_DATA05__RAWNAND_DATA05 0xb0b1
- MX6UL_PAD_NAND_DATA06__RAWNAND_DATA06 0xb0b1
- MX6UL_PAD_NAND_DATA07__RAWNAND_DATA07 0xb0b1
- >;
- };
-
- pinctrl_i2c1: i2c1grp {
- fsl,pins = <
- MX6UL_PAD_UART4_TX_DATA__I2C1_SCL 0x4001b8b0
- MX6UL_PAD_UART4_RX_DATA__I2C1_SDA 0x4001b8b0
- >;
- };
-
- pinctrl_i2c2: i2c2grp {
- fsl,pins = <
- MX6UL_PAD_UART5_TX_DATA__I2C2_SCL 0x4001b8b0
- MX6UL_PAD_UART5_RX_DATA__I2C2_SDA 0x4001b8b0
- >;
- };
-
- pinctrl_lcdif_ctrl: lcdifctrlgrp {
- fsl,pins = <
- MX6UL_PAD_LCD_CLK__LCDIF_CLK 0x79
- MX6UL_PAD_LCD_ENABLE__LCDIF_ENABLE 0x79
- MX6UL_PAD_LCD_HSYNC__LCDIF_HSYNC 0x79
- MX6UL_PAD_LCD_VSYNC__LCDIF_VSYNC 0x79
- >;
- };
-
- pinctrl_lcdif_dat: lcdifdatgrp {
- fsl,pins = <
- MX6UL_PAD_LCD_DATA00__LCDIF_DATA00 0x79
- MX6UL_PAD_LCD_DATA01__LCDIF_DATA01 0x79
- MX6UL_PAD_LCD_DATA02__LCDIF_DATA02 0x79
- MX6UL_PAD_LCD_DATA03__LCDIF_DATA03 0x79
- MX6UL_PAD_LCD_DATA04__LCDIF_DATA04 0x79
- MX6UL_PAD_LCD_DATA05__LCDIF_DATA05 0x79
- MX6UL_PAD_LCD_DATA06__LCDIF_DATA06 0x79
- MX6UL_PAD_LCD_DATA07__LCDIF_DATA07 0x79
- MX6UL_PAD_LCD_DATA08__LCDIF_DATA08 0x79
- MX6UL_PAD_LCD_DATA09__LCDIF_DATA09 0x79
- MX6UL_PAD_LCD_DATA10__LCDIF_DATA10 0x79
- MX6UL_PAD_LCD_DATA11__LCDIF_DATA11 0x79
- MX6UL_PAD_LCD_DATA12__LCDIF_DATA12 0x79
- MX6UL_PAD_LCD_DATA13__LCDIF_DATA13 0x79
- MX6UL_PAD_LCD_DATA14__LCDIF_DATA14 0x79
- MX6UL_PAD_LCD_DATA15__LCDIF_DATA15 0x79
- MX6UL_PAD_LCD_DATA16__LCDIF_DATA16 0x79
- MX6UL_PAD_LCD_DATA17__LCDIF_DATA17 0x79
- >;
- };
-
- pinctrl_pwm8: pwm8grp {
- fsl,pins = <
- MX6UL_PAD_ENET1_RX_ER__PWM8_OUT 0x110b0
- >;
- };
-
- pinctrl_tsc: tscgrp {
- fsl,pin = <
- MX6UL_PAD_GPIO1_IO01__GPIO1_IO01 0xb0
- MX6UL_PAD_GPIO1_IO02__GPIO1_IO02 0xb0
- MX6UL_PAD_GPIO1_IO03__GPIO1_IO03 0xb0
- MX6UL_PAD_GPIO1_IO04__GPIO1_IO04 0xb0
- >;
- };
-
- pinctrl_sai2: sai2grp {
- fsl,pins = <
- MX6UL_PAD_JTAG_TCK__SAI2_RX_DATA 0x130b0
- MX6UL_PAD_JTAG_TMS__CCM_CLKO1 0x4001b031
- MX6UL_PAD_JTAG_TDI__SAI2_TX_BCLK 0x17088
- MX6UL_PAD_JTAG_TDO__SAI2_TX_SYNC 0x17088
- MX6UL_PAD_JTAG_TRST_B__SAI2_TX_DATA 0x120b0
- >;
- };
-
- pinctrl_uart1: uart1grp {
- fsl,pins = <
- MX6UL_PAD_UART1_TX_DATA__UART1_DCE_TX 0x1b0b1
- MX6UL_PAD_UART1_RX_DATA__UART1_DCE_RX 0x1b0b1
- >;
- };
-
- pinctrl_uart2: uart2grp {
- fsl,pins = <
- MX6UL_PAD_UART2_TX_DATA__UART2_DCE_TX 0x1b0b1
- MX6UL_PAD_UART2_RX_DATA__UART2_DCE_RX 0x1b0b1
- MX6UL_PAD_UART3_RX_DATA__UART2_DCE_RTS 0x1b0b1
- MX6UL_PAD_UART3_TX_DATA__UART2_DCE_CTS 0x1b0b1
- >;
- };
-
- pinctrl_usdhc1: usdhc1grp {
- fsl,pins = <
- MX6UL_PAD_SD1_CMD__USDHC1_CMD 0x17059
- MX6UL_PAD_SD1_CLK__USDHC1_CLK 0x10059
- MX6UL_PAD_SD1_DATA0__USDHC1_DATA0 0x17059
- MX6UL_PAD_SD1_DATA1__USDHC1_DATA1 0x17059
- MX6UL_PAD_SD1_DATA2__USDHC1_DATA2 0x17059
- MX6UL_PAD_SD1_DATA3__USDHC1_DATA3 0x17059
- >;
- };
-
- pinctrl_usdhc1_100mhz: usdhc1grp100mhz {
- fsl,pins = <
- MX6UL_PAD_SD1_CMD__USDHC1_CMD 0x170b9
- MX6UL_PAD_SD1_CLK__USDHC1_CLK 0x100b9
- MX6UL_PAD_SD1_DATA0__USDHC1_DATA0 0x170b9
- MX6UL_PAD_SD1_DATA1__USDHC1_DATA1 0x170b9
- MX6UL_PAD_SD1_DATA2__USDHC1_DATA2 0x170b9
- MX6UL_PAD_SD1_DATA3__USDHC1_DATA3 0x170b9
- >;
- };
-
- pinctrl_usdhc1_200mhz: usdhc1grp200mhz {
- fsl,pins = <
- MX6UL_PAD_SD1_CMD__USDHC1_CMD 0x170f9
- MX6UL_PAD_SD1_CLK__USDHC1_CLK 0x100f9
- MX6UL_PAD_SD1_DATA0__USDHC1_DATA0 0x170f9
- MX6UL_PAD_SD1_DATA1__USDHC1_DATA1 0x170f9
- MX6UL_PAD_SD1_DATA2__USDHC1_DATA2 0x170f9
- MX6UL_PAD_SD1_DATA3__USDHC1_DATA3 0x170f9
- >;
- };
-
- pinctrl_usdhc2: usdhc2grp {
- fsl,pins = <
- MX6UL_PAD_CSI_VSYNC__USDHC2_CLK 0x17070
- MX6UL_PAD_CSI_HSYNC__USDHC2_CMD 0x10070
- MX6UL_PAD_CSI_DATA00__USDHC2_DATA0 0x17070
- MX6UL_PAD_CSI_DATA01__USDHC2_DATA1 0x17070
- MX6UL_PAD_CSI_DATA02__USDHC2_DATA2 0x17070
- MX6UL_PAD_CSI_DATA03__USDHC2_DATA3 0x17070
- >;
- };
-};
diff --git a/arch/arm/boot/dts/imx6ul-isiot-common.dtsi b/arch/arm/boot/dts/imx6ul-isiot-common.dtsi
deleted file mode 100644
index 2beaab6e272e..000000000000
--- a/arch/arm/boot/dts/imx6ul-isiot-common.dtsi
+++ /dev/null
@@ -1,141 +0,0 @@
-/*
- * Copyright (C) 2016 Amarula Solutions B.V.
- * Copyright (C) 2016 Engicam S.r.l.
- *
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-
-&i2c1 {
- stmpe811: gpio-expander@44 {
- compatible = "st,stmpe811";
- reg = <0x44>;
- #address-cells = <1>;
- #size-cells = <0>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_stmpe>;
- interrupt-parent = <&gpio1>;
- interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
- interrupt-controller;
- #interrupt-cells = <2>;
-
- stmpe: touchscreen {
- compatible = "st,stmpe-ts";
- st,sample-time = <4>;
- st,mod-12b = <1>;
- st,ref-sel = <0>;
- st,adc-freq = <1>;
- st,ave-ctrl = <1>;
- st,touch-det-delay = <2>;
- st,settling = <2>;
- st,fraction-z = <7>;
- st,i-drive = <1>;
- };
- };
-};
-
-&lcdif {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_lcdif_dat
- &pinctrl_lcdif_ctrl>;
- display = <&display0>;
- status = "okay";
-
- display0: display {
- bits-per-pixel = <16>;
- bus-width = <18>;
-
- display-timings {
- native-mode = <&timing0>;
- timing0: timing0 {
- clock-frequency = <28000000>;
- hactive = <800>;
- vactive = <480>;
- hfront-porch = <30>;
- hback-porch = <30>;
- hsync-len = <64>;
- vback-porch = <5>;
- vfront-porch = <5>;
- vsync-len = <20>;
- hsync-active = <0>;
- vsync-active = <0>;
- de-active = <1>;
- pixelclk-active = <0>;
- };
- };
- };
-};
-
-&iomuxc {
- pinctrl_lcdif_ctrl: lcdifctrlgrp {
- fsl,pins = <
- MX6UL_PAD_LCD_CLK__LCDIF_CLK 0x79
- MX6UL_PAD_LCD_ENABLE__LCDIF_ENABLE 0x79
- MX6UL_PAD_LCD_HSYNC__LCDIF_HSYNC 0x79
- MX6UL_PAD_LCD_VSYNC__LCDIF_VSYNC 0x79
- >;
- };
-
- pinctrl_lcdif_dat: lcdifdatgrp {
- fsl,pins = <
- MX6UL_PAD_LCD_DATA00__LCDIF_DATA00 0x79
- MX6UL_PAD_LCD_DATA01__LCDIF_DATA01 0x79
- MX6UL_PAD_LCD_DATA02__LCDIF_DATA02 0x79
- MX6UL_PAD_LCD_DATA03__LCDIF_DATA03 0x79
- MX6UL_PAD_LCD_DATA04__LCDIF_DATA04 0x79
- MX6UL_PAD_LCD_DATA05__LCDIF_DATA05 0x79
- MX6UL_PAD_LCD_DATA06__LCDIF_DATA06 0x79
- MX6UL_PAD_LCD_DATA07__LCDIF_DATA07 0x79
- MX6UL_PAD_LCD_DATA08__LCDIF_DATA08 0x79
- MX6UL_PAD_LCD_DATA09__LCDIF_DATA09 0x79
- MX6UL_PAD_LCD_DATA10__LCDIF_DATA10 0x79
- MX6UL_PAD_LCD_DATA11__LCDIF_DATA11 0x79
- MX6UL_PAD_LCD_DATA12__LCDIF_DATA12 0x79
- MX6UL_PAD_LCD_DATA13__LCDIF_DATA13 0x79
- MX6UL_PAD_LCD_DATA14__LCDIF_DATA14 0x79
- MX6UL_PAD_LCD_DATA15__LCDIF_DATA15 0x79
- MX6UL_PAD_LCD_DATA16__LCDIF_DATA16 0x79
- MX6UL_PAD_LCD_DATA17__LCDIF_DATA17 0x79
- >;
- };
-
- pinctrl_stmpe: stmpegrp {
- fsl,pins = <
- MX6UL_PAD_UART1_CTS_B__GPIO1_IO18 0x1b0b0
- >;
- };
-};
diff --git a/arch/arm/boot/dts/imx6ul-isiot-emmc.dts b/arch/arm/boot/dts/imx6ul-isiot-emmc.dts
index 73a1d0f0b9d5..f5b422898e61 100644
--- a/arch/arm/boot/dts/imx6ul-isiot-emmc.dts
+++ b/arch/arm/boot/dts/imx6ul-isiot-emmc.dts
@@ -43,7 +43,6 @@
/dts-v1/;
#include "imx6ul-isiot.dtsi"
-#include "imx6ul-isiot-common.dtsi"
/ {
model = "Engicam Is.IoT MX6UL eMMC Starter kit";
diff --git a/arch/arm/boot/dts/imx6ul-isiot-nand.dts b/arch/arm/boot/dts/imx6ul-isiot-nand.dts
index da29a86eb6a8..de15e1c75dd1 100644
--- a/arch/arm/boot/dts/imx6ul-isiot-nand.dts
+++ b/arch/arm/boot/dts/imx6ul-isiot-nand.dts
@@ -43,7 +43,6 @@
/dts-v1/;
#include "imx6ul-isiot.dtsi"
-#include "imx6ul-isiot-common.dtsi"
/ {
model = "Engicam Is.IoT MX6UL NAND Starter kit";
diff --git a/arch/arm/boot/dts/imx6ul-isiot.dtsi b/arch/arm/boot/dts/imx6ul-isiot.dtsi
index ea30380ad7a4..950fb28b630a 100644
--- a/arch/arm/boot/dts/imx6ul-isiot.dtsi
+++ b/arch/arm/boot/dts/imx6ul-isiot.dtsi
@@ -69,6 +69,68 @@
100>;
default-brightness-level = <100>;
};
+
+ reg_1p8v: regulator-1p8v {
+ compatible = "regulator-fixed";
+ regulator-name = "1P8V";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ reg_3p3v: regulator-3p3v {
+ compatible = "regulator-fixed";
+ regulator-name = "3P3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "imx6ul-isiot-sgtl5000";
+ simple-audio-card,format = "i2s";
+ simple-audio-card,bitclock-master = <&dailink_master>;
+ simple-audio-card,frame-master = <&dailink_master>;
+ simple-audio-card,widgets =
+ "Microphone", "Mic Jack",
+ "Line", "Line In",
+ "Line", "Line Out",
+ "Headphone", "Headphone Jack";
+ simple-audio-card,routing =
+ "MIC_IN", "Mic Jack",
+ "Mic Jack", "Mic Bias",
+ "Headphone Jack", "HP_OUT";
+
+ simple-audio-card,cpu {
+ sound-dai = <&sai2>;
+ };
+
+ dailink_master: simple-audio-card,codec {
+ sound-dai = <&sgtl5000>;
+ clocks = <&clks IMX6UL_CLK_SAI2>;
+ };
+ };
+};
+
+&fec1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_enet1>;
+ phy-mode = "rmii";
+ phy-handle = <&ethphy0>;
+ status = "okay";
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethphy0: ethernet-phy@0 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <0>;
+ };
+ };
};
&i2c1 {
@@ -76,6 +138,42 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c1>;
status = "okay";
+
+ sgtl5000: codec@a {
+ compatible = "fsl,sgtl5000";
+ reg = <0x0a>;
+ clocks = <&clks IMX6UL_CLK_OSC>;
+ clock-names = "mclk";
+ VDDA-supply = <&reg_3p3v>;
+ VDDIO-supply = <&reg_3p3v>;
+ VDDD-supply = <&reg_1p8v>;
+ };
+
+ stmpe811: gpio-expander@44 {
+ compatible = "st,stmpe811";
+ reg = <0x44>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_stmpe>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ stmpe: touchscreen {
+ compatible = "st,stmpe-ts";
+ st,sample-time = <4>;
+ st,mod-12b = <1>;
+ st,ref-sel = <0>;
+ st,adc-freq = <1>;
+ st,ave-ctrl = <1>;
+ st,touch-det-delay = <2>;
+ st,settling = <2>;
+ st,fraction-z = <7>;
+ st,i-drive = <1>;
+ };
+ };
};
&i2c2 {
@@ -85,6 +183,38 @@
status = "okay";
};
+&lcdif {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_lcdif_dat
+ &pinctrl_lcdif_ctrl>;
+ display = <&display0>;
+ status = "okay";
+
+ display0: display {
+ bits-per-pixel = <16>;
+ bus-width = <18>;
+
+ display-timings {
+ native-mode = <&timing0>;
+ timing0: timing0 {
+ clock-frequency = <28000000>;
+ hactive = <800>;
+ vactive = <480>;
+ hfront-porch = <30>;
+ hback-porch = <30>;
+ hsync-len = <64>;
+ vback-porch = <5>;
+ vfront-porch = <5>;
+ vsync-len = <20>;
+ hsync-active = <0>;
+ vsync-active = <0>;
+ de-active = <1>;
+ pixelclk-active = <0>;
+ };
+ };
+ };
+};
+
&pwm8 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pwm8>;
@@ -115,6 +245,21 @@
};
&iomuxc {
+ pinctrl_enet1: enet1grp {
+ fsl,pins = <
+ MX6UL_PAD_ENET2_RX_DATA0__ENET1_MDIO 0x1b0b0
+ MX6UL_PAD_ENET2_RX_DATA1__ENET1_MDC 0x1b0b0
+ MX6UL_PAD_ENET1_RX_EN__ENET1_RX_EN 0x1b0b0
+ MX6UL_PAD_ENET1_RX_DATA0__ENET1_RDATA00 0x1b0b0
+ MX6UL_PAD_ENET1_RX_DATA1__ENET1_RDATA01 0x1b0b0
+ MX6UL_PAD_ENET1_TX_EN__ENET1_TX_EN 0x1b0b0
+ MX6UL_PAD_ENET1_TX_DATA0__ENET1_TDATA00 0x1b0b0
+ MX6UL_PAD_ENET1_TX_DATA1__ENET1_TDATA01 0x1b0b0
+ MX6UL_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 0x4001b031
+ MX6UL_PAD_ENET2_RX_EN__GPIO2_IO10 0x1b0b0
+ >;
+ };
+
pinctrl_i2c1: i2c1grp {
fsl,pins = <
MX6UL_PAD_UART4_TX_DATA__I2C1_SCL 0x4001b8b0
@@ -129,6 +274,38 @@
>;
};
+ pinctrl_lcdif_ctrl: lcdifctrlgrp {
+ fsl,pins = <
+ MX6UL_PAD_LCD_CLK__LCDIF_CLK 0x79
+ MX6UL_PAD_LCD_ENABLE__LCDIF_ENABLE 0x79
+ MX6UL_PAD_LCD_HSYNC__LCDIF_HSYNC 0x79
+ MX6UL_PAD_LCD_VSYNC__LCDIF_VSYNC 0x79
+ >;
+ };
+
+ pinctrl_lcdif_dat: lcdifdatgrp {
+ fsl,pins = <
+ MX6UL_PAD_LCD_DATA00__LCDIF_DATA00 0x79
+ MX6UL_PAD_LCD_DATA01__LCDIF_DATA01 0x79
+ MX6UL_PAD_LCD_DATA02__LCDIF_DATA02 0x79
+ MX6UL_PAD_LCD_DATA03__LCDIF_DATA03 0x79
+ MX6UL_PAD_LCD_DATA04__LCDIF_DATA04 0x79
+ MX6UL_PAD_LCD_DATA05__LCDIF_DATA05 0x79
+ MX6UL_PAD_LCD_DATA06__LCDIF_DATA06 0x79
+ MX6UL_PAD_LCD_DATA07__LCDIF_DATA07 0x79
+ MX6UL_PAD_LCD_DATA08__LCDIF_DATA08 0x79
+ MX6UL_PAD_LCD_DATA09__LCDIF_DATA09 0x79
+ MX6UL_PAD_LCD_DATA10__LCDIF_DATA10 0x79
+ MX6UL_PAD_LCD_DATA11__LCDIF_DATA11 0x79
+ MX6UL_PAD_LCD_DATA12__LCDIF_DATA12 0x79
+ MX6UL_PAD_LCD_DATA13__LCDIF_DATA13 0x79
+ MX6UL_PAD_LCD_DATA14__LCDIF_DATA14 0x79
+ MX6UL_PAD_LCD_DATA15__LCDIF_DATA15 0x79
+ MX6UL_PAD_LCD_DATA16__LCDIF_DATA16 0x79
+ MX6UL_PAD_LCD_DATA17__LCDIF_DATA17 0x79
+ >;
+ };
+
pinctrl_pwm8: pwm8grp {
fsl,pins = <
MX6UL_PAD_ENET1_RX_ER__PWM8_OUT 0x110b0
@@ -145,6 +322,12 @@
>;
};
+ pinctrl_stmpe: stmpegrp {
+ fsl,pins = <
+ MX6UL_PAD_UART1_CTS_B__GPIO1_IO18 0x1b0b0
+ >;
+ };
+
pinctrl_uart1: uart1grp {
fsl,pins = <
MX6UL_PAD_UART1_TX_DATA__UART1_DCE_TX 0x1b0b1
diff --git a/arch/arm/boot/dts/imx6ul-liteboard.dts b/arch/arm/boot/dts/imx6ul-liteboard.dts
index ed1d891d6a89..1d863a16bcf0 100644
--- a/arch/arm/boot/dts/imx6ul-liteboard.dts
+++ b/arch/arm/boot/dts/imx6ul-liteboard.dts
@@ -124,6 +124,10 @@
};
};
+&snvs_poweroff {
+ status = "okay";
+};
+
&uart1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart1>;
diff --git a/arch/arm/boot/dts/imx6ul-opos6ul.dtsi b/arch/arm/boot/dts/imx6ul-opos6ul.dtsi
index 51095df33a90..aec5ccce0321 100644
--- a/arch/arm/boot/dts/imx6ul-opos6ul.dtsi
+++ b/arch/arm/boot/dts/imx6ul-opos6ul.dtsi
@@ -120,7 +120,7 @@
#address-cells = <1>;
#size-cells = <0>;
- brcmf: bcrmf@1 {
+ brcmf: wifi@1 {
compatible = "brcm,bcm4329-fmac";
reg = <1>;
interrupt-parent = <&gpio2>;
diff --git a/arch/arm/boot/dts/imx6ul-tx6ul-mainboard.dts b/arch/arm/boot/dts/imx6ul-tx6ul-mainboard.dts
index 7c5dd1b316ca..28d055e3f301 100644
--- a/arch/arm/boot/dts/imx6ul-tx6ul-mainboard.dts
+++ b/arch/arm/boot/dts/imx6ul-tx6ul-mainboard.dts
@@ -78,7 +78,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet2 &pinctrl_enet2_mdio &pinctrl_etnphy1_rst>;
phy-mode = "rmii";
- phy-reset-gpios = <&gpio4 28 GPIO_ACTIVE_HIGH>;
+ phy-reset-gpios = <&gpio4 28 GPIO_ACTIVE_LOW>;
phy-supply = <&reg_3v3_etn>;
phy-handle = <&etnphy1>;
status = "okay";
diff --git a/arch/arm/boot/dts/imx6ul-tx6ul.dtsi b/arch/arm/boot/dts/imx6ul-tx6ul.dtsi
index c784a0b75ca0..ec745eb3b6a8 100644
--- a/arch/arm/boot/dts/imx6ul-tx6ul.dtsi
+++ b/arch/arm/boot/dts/imx6ul-tx6ul.dtsi
@@ -173,8 +173,7 @@
regulator-max-microvolt = <3300000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_flexcan_xcvr>;
- gpio = <&gpio3 5 GPIO_ACTIVE_HIGH>;
- enable-active-low;
+ gpio = <&gpio3 5 GPIO_ACTIVE_LOW>;
};
reg_lcd_pwr: regulator-lcdpwr {
@@ -308,7 +307,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet1 &pinctrl_enet1_mdio &pinctrl_etnphy0_rst>;
phy-mode = "rmii";
- phy-reset-gpios = <&gpio5 6 GPIO_ACTIVE_HIGH>;
+ phy-reset-gpios = <&gpio5 6 GPIO_ACTIVE_LOW>;
phy-supply = <&reg_3v3_etn>;
phy-handle = <&etnphy0>;
status = "okay";
@@ -343,7 +342,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet2 &pinctrl_etnphy1_rst>;
phy-mode = "rmii";
- phy-reset-gpios = <&gpio4 28 GPIO_ACTIVE_HIGH>;
+ phy-reset-gpios = <&gpio4 28 GPIO_ACTIVE_LOW>;
phy-supply = <&reg_3v3_etn>;
phy-handle = <&etnphy1>;
status = "disabled";
diff --git a/arch/arm/boot/dts/imx6ul.dtsi b/arch/arm/boot/dts/imx6ul.dtsi
index b9d7d2d09402..f11a241a340d 100644
--- a/arch/arm/boot/dts/imx6ul.dtsi
+++ b/arch/arm/boot/dts/imx6ul.dtsi
@@ -542,6 +542,7 @@
anatop-min-bit-val = <0>;
anatop-min-voltage = <2625000>;
anatop-max-voltage = <3400000>;
+ anatop-enable-bit = <0>;
};
reg_arm: regulator-vddcore {
@@ -613,6 +614,7 @@
compatible = "syscon-poweroff";
regmap = <&snvs>;
offset = <0x38>;
+ value = <0x60>;
mask = <0x60>;
status = "disabled";
};
diff --git a/arch/arm/boot/dts/imx7-colibri.dtsi b/arch/arm/boot/dts/imx7-colibri.dtsi
index 2d87489f9105..0a3915868aa3 100644
--- a/arch/arm/boot/dts/imx7-colibri.dtsi
+++ b/arch/arm/boot/dts/imx7-colibri.dtsi
@@ -43,7 +43,7 @@
/ {
bl: backlight {
compatible = "pwm-backlight";
- pwms = <&pwm1 0 5000000>;
+ pwms = <&pwm1 0 5000000 0>;
};
reg_module_3v3: regulator-module-3v3 {
@@ -106,6 +106,15 @@
fsl,magic-packet;
};
+&gpmi {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpmi_nand>;
+ fsl,use-minimum-ecc;
+ nand-on-flash-bbt;
+ nand-ecc-mode = "hw";
+ status = "okay";
+};
+
&i2c1 {
clock-frequency = <100000>;
pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/imx7d-nitrogen7.dts b/arch/arm/boot/dts/imx7d-nitrogen7.dts
index 5d98e2b5d54b..e7998308861f 100644
--- a/arch/arm/boot/dts/imx7d-nitrogen7.dts
+++ b/arch/arm/boot/dts/imx7d-nitrogen7.dts
@@ -67,7 +67,7 @@
backlight-j20 {
compatible = "pwm-backlight";
- pwms = <&pwm1 0 5000000>;
+ pwms = <&pwm1 0 5000000 0>;
brightness-levels = <0 4 8 16 32 64 128 255>;
default-brightness-level = <6>;
status = "okay";
@@ -279,7 +279,7 @@
status = "okay";
rtc@68 {
- compatible = "rv4162";
+ compatible = "microcrystal,rv4162";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c2_rv4162>;
reg = <0x68>;
@@ -738,7 +738,7 @@
pinctrl_wdog1: wdog1grp {
fsl,pins = <
- MX7D_PAD_LPSR_GPIO1_IO00__WDOD1_WDOG_B 0x75
+ MX7D_PAD_LPSR_GPIO1_IO00__WDOG1_WDOG_B 0x75
>;
};
};
diff --git a/arch/arm/boot/dts/imx7d-pico.dts b/arch/arm/boot/dts/imx7d-pico.dts
new file mode 100644
index 000000000000..e78c2c9cc28a
--- /dev/null
+++ b/arch/arm/boot/dts/imx7d-pico.dts
@@ -0,0 +1,403 @@
+/*
+ * Copyright 2017 NXP
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+
+#include "imx7d.dtsi"
+
+/ {
+ model = "Technexion Pico i.MX7D Board";
+ compatible = "technexion,imx7d-pico", "fsl,imx7d";
+
+ memory {
+ reg = <0x80000000 0x80000000>;
+ };
+
+ reg_2p5v: regulator-2p5v {
+ compatible = "regulator-fixed";
+ regulator-name = "2P5V";
+ regulator-min-microvolt = <2500000>;
+ regulator-max-microvolt = <2500000>;
+ regulator-always-on;
+ };
+
+ reg_3p3v: regulator-3p3v {
+ compatible = "regulator-fixed";
+ regulator-name = "3P3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ reg_usb_otg1_vbus: regulator-usb-otg1-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usb_otg1_vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&gpio4 5 GPIO_ACTIVE_LOW>;
+ };
+
+ reg_usb_otg2_vbus: regulator-usb-otg2-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usb_otg2_vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ };
+
+ reg_vref_1v8: regulator-vref-1v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "vref-1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "imx7-sgtl5000";
+ simple-audio-card,format = "i2s";
+ simple-audio-card,bitclock-master = <&dailink_master>;
+ simple-audio-card,frame-master = <&dailink_master>;
+ simple-audio-card,cpu {
+ sound-dai = <&sai1>;
+ };
+
+ dailink_master: simple-audio-card,codec {
+ sound-dai = <&codec>;
+ clocks = <&clks IMX7D_AUDIO_MCLK_ROOT_CLK>;
+ };
+ };
+};
+
+&fec1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_enet1>;
+ assigned-clocks = <&clks IMX7D_ENET1_TIME_ROOT_SRC>,
+ <&clks IMX7D_ENET1_TIME_ROOT_CLK>;
+ assigned-clock-parents = <&clks IMX7D_PLL_ENET_MAIN_100M_CLK>;
+ assigned-clock-rates = <0>, <100000000>;
+ phy-mode = "rgmii";
+ phy-handle = <&ethphy0>;
+ fsl,magic-packet;
+ status = "okay";
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethphy0: ethernet-phy@1 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <1>;
+ status = "okay";
+ };
+ };
+};
+
+&i2c1 {
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c1>;
+ status = "okay";
+
+ codec: sgtl5000@0a {
+ #sound-dai-cells = <0>;
+ reg = <0x0a>;
+ compatible = "fsl,sgtl5000";
+ clocks = <&clks IMX7D_AUDIO_MCLK_ROOT_CLK>;
+ VDDA-supply = <&reg_2p5v>;
+ VDDIO-supply = <&reg_vref_1v8>;
+ };
+};
+
+&i2c4 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c4>;
+ status = "okay";
+
+ pmic: pfuze3000@08 {
+ compatible = "fsl,pfuze3000";
+ reg = <0x08>;
+
+ regulators {
+ sw1a_reg: sw1a {
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-ramp-delay = <6250>;
+ };
+ /* use sw1c_reg to align with pfuze100/pfuze200 */
+ sw1c_reg: sw1b {
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <1475000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-ramp-delay = <6250>;
+ };
+
+ sw2_reg: sw2 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1850000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ sw3a_reg: sw3 {
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <1650000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ swbst_reg: swbst {
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5150000>;
+ };
+
+ snvs_reg: vsnvs {
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ vref_reg: vrefddr {
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ vgen1_reg: vldo1 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ vgen2_reg: vldo2 {
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <1550000>;
+ };
+
+ vgen3_reg: vccsd {
+ regulator-min-microvolt = <2850000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ vgen4_reg: v33 {
+ regulator-min-microvolt = <2850000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ vgen5_reg: vldo3 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ vgen6_reg: vldo4 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+ };
+ };
+};
+
+&sai1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sai1>;
+ assigned-clocks = <&clks IMX7D_SAI1_ROOT_SRC>,
+ <&clks IMX7D_SAI1_ROOT_CLK>;
+ assigned-clock-parents = <&clks IMX7D_PLL_AUDIO_POST_DIV>;
+ assigned-clock-rates = <0>, <24576000>;
+ status = "okay";
+};
+
+&uart5 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart5>;
+ assigned-clocks = <&clks IMX7D_UART5_ROOT_SRC>;
+ assigned-clock-parents = <&clks IMX7D_PLL_SYS_MAIN_240M_CLK>;
+ status = "okay";
+};
+
+&usbotg1 {
+ vbus-supply = <&reg_usb_otg1_vbus>;
+ status = "okay";
+};
+
+&usbotg2 {
+ vbus-supply = <&reg_usb_otg2_vbus>;
+ dr_mode = "host";
+ status = "okay";
+};
+
+&usdhc3 {
+ pinctrl-names = "default", "state_100mhz", "state_200mhz";
+ pinctrl-0 = <&pinctrl_usdhc3>;
+ pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
+ pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
+ assigned-clocks = <&clks IMX7D_USDHC3_ROOT_CLK>;
+ assigned-clock-rates = <400000000>;
+ bus-width = <8>;
+ no-1-8-v;
+ fsl,tuning-step = <2>;
+ non-removable;
+ status = "okay";
+};
+
+&wdog1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_wdog>;
+ fsl,ext-reset-output;
+ status = "okay";
+};
+
+&iomuxc {
+ pinctrl_enet1: enet1grp {
+ fsl,pins = <
+ MX7D_PAD_SD2_CD_B__ENET1_MDIO 0x3
+ MX7D_PAD_SD2_WP__ENET1_MDC 0x3
+ MX7D_PAD_ENET1_RGMII_TXC__ENET1_RGMII_TXC 0x1
+ MX7D_PAD_ENET1_RGMII_TD0__ENET1_RGMII_TD0 0x1
+ MX7D_PAD_ENET1_RGMII_TD1__ENET1_RGMII_TD1 0x1
+ MX7D_PAD_ENET1_RGMII_TD2__ENET1_RGMII_TD2 0x1
+ MX7D_PAD_ENET1_RGMII_TD3__ENET1_RGMII_TD3 0x1
+ MX7D_PAD_ENET1_RGMII_TX_CTL__ENET1_RGMII_TX_CTL 0x1
+ MX7D_PAD_ENET1_RGMII_RXC__ENET1_RGMII_RXC 0x1
+ MX7D_PAD_ENET1_RGMII_RD0__ENET1_RGMII_RD0 0x1
+ MX7D_PAD_ENET1_RGMII_RD1__ENET1_RGMII_RD1 0x1
+ MX7D_PAD_ENET1_RGMII_RD2__ENET1_RGMII_RD2 0x1
+ MX7D_PAD_ENET1_RGMII_RD3__ENET1_RGMII_RD3 0x1
+ MX7D_PAD_ENET1_RGMII_RX_CTL__ENET1_RGMII_RX_CTL 0x1
+ >;
+ };
+
+ pinctrl_i2c1: i2c1grp {
+ fsl,pins = <
+ MX7D_PAD_UART1_TX_DATA__I2C1_SDA 0x4000007f
+ MX7D_PAD_UART1_RX_DATA__I2C1_SCL 0x4000007f
+ >;
+ };
+
+ pinctrl_i2c4: i2c4grp {
+ fsl,pins = <
+ MX7D_PAD_SAI1_RX_BCLK__I2C4_SDA 0x4000007f
+ MX7D_PAD_SAI1_RX_SYNC__I2C4_SCL 0x4000007f
+ >;
+ };
+
+ pinctrl_sai1: sai1grp {
+ fsl,pins = <
+ MX7D_PAD_ENET1_RX_CLK__SAI1_TX_BCLK 0x1f
+ MX7D_PAD_ENET1_CRS__SAI1_TX_SYNC 0x1f
+ MX7D_PAD_ENET1_COL__SAI1_TX_DATA0 0x30
+ MX7D_PAD_ENET1_TX_CLK__SAI1_RX_DATA0 0x1f
+ >;
+ };
+
+ pinctrl_uart5: uart5grp {
+ fsl,pins = <
+ MX7D_PAD_I2C4_SDA__UART5_DCE_TX 0x79
+ MX7D_PAD_I2C4_SCL__UART5_DCE_RX 0x79
+ >;
+ };
+
+ pinctrl_usbotg1_pwr: usbotg_pwr {
+ fsl,pins = <
+ MX7D_PAD_UART3_TX_DATA__GPIO4_IO5 0x14
+ >;
+ };
+
+ pinctrl_usdhc3: usdhc3grp {
+ fsl,pins = <
+ MX7D_PAD_SD3_CMD__SD3_CMD 0x59
+ MX7D_PAD_SD3_CLK__SD3_CLK 0x19
+ MX7D_PAD_SD3_DATA0__SD3_DATA0 0x59
+ MX7D_PAD_SD3_DATA1__SD3_DATA1 0x59
+ MX7D_PAD_SD3_DATA2__SD3_DATA2 0x59
+ MX7D_PAD_SD3_DATA3__SD3_DATA3 0x59
+ MX7D_PAD_SD3_DATA4__SD3_DATA4 0x59
+ MX7D_PAD_SD3_DATA5__SD3_DATA5 0x59
+ MX7D_PAD_SD3_DATA6__SD3_DATA6 0x59
+ MX7D_PAD_SD3_DATA7__SD3_DATA7 0x59
+ >;
+ };
+
+ pinctrl_usdhc3_100mhz: usdhc3grp_100mhz {
+ fsl,pins = <
+ MX7D_PAD_SD3_CMD__SD3_CMD 0x5a
+ MX7D_PAD_SD3_CLK__SD3_CLK 0x1a
+ MX7D_PAD_SD3_DATA0__SD3_DATA0 0x5a
+ MX7D_PAD_SD3_DATA1__SD3_DATA1 0x5a
+ MX7D_PAD_SD3_DATA2__SD3_DATA2 0x5a
+ MX7D_PAD_SD3_DATA3__SD3_DATA3 0x5a
+ MX7D_PAD_SD3_DATA4__SD3_DATA4 0x5a
+ MX7D_PAD_SD3_DATA5__SD3_DATA5 0x5a
+ MX7D_PAD_SD3_DATA6__SD3_DATA6 0x5a
+ MX7D_PAD_SD3_DATA7__SD3_DATA7 0x5a
+ >;
+ };
+
+ pinctrl_usdhc3_200mhz: usdhc3grp_200mhz {
+ fsl,pins = <
+ MX7D_PAD_SD3_CMD__SD3_CMD 0x5b
+ MX7D_PAD_SD3_CLK__SD3_CLK 0x1b
+ MX7D_PAD_SD3_DATA0__SD3_DATA0 0x5b
+ MX7D_PAD_SD3_DATA1__SD3_DATA1 0x5b
+ MX7D_PAD_SD3_DATA2__SD3_DATA2 0x5b
+ MX7D_PAD_SD3_DATA3__SD3_DATA3 0x5b
+ MX7D_PAD_SD3_DATA4__SD3_DATA4 0x5b
+ MX7D_PAD_SD3_DATA5__SD3_DATA5 0x5b
+ MX7D_PAD_SD3_DATA6__SD3_DATA6 0x5b
+ MX7D_PAD_SD3_DATA7__SD3_DATA7 0x5b
+ >;
+ };
+};
+
+&iomuxc_lpsr {
+ pinctrl_wdog: wdoggrp {
+ fsl,pins = <
+ MX7D_PAD_LPSR_GPIO1_IO00__WDOG1_WDOG_B 0x74
+ >;
+ };
+};
diff --git a/arch/arm/boot/dts/imx7d-pinfunc.h b/arch/arm/boot/dts/imx7d-pinfunc.h
index f6f7e78f8820..f2493bc63da4 100644
--- a/arch/arm/boot/dts/imx7d-pinfunc.h
+++ b/arch/arm/boot/dts/imx7d-pinfunc.h
@@ -17,9 +17,9 @@
#define MX7D_PAD_LPSR_GPIO1_IO00__GPIO1_IO0 0x0000 0x0030 0x0000 0x0 0x0
#define MX7D_PAD_LPSR_GPIO1_IO00__PWM4_OUT 0x0000 0x0030 0x0000 0x1 0x0
-#define MX7D_PAD_LPSR_GPIO1_IO00__WDOD1_WDOG_ANY 0x0000 0x0030 0x0000 0x2 0x0
-#define MX7D_PAD_LPSR_GPIO1_IO00__WDOD1_WDOG_B 0x0000 0x0030 0x0000 0x3 0x0
-#define MX7D_PAD_LPSR_GPIO1_IO00__WDOD1_WDOG__RST_B_DEB 0x0000 0x0030 0x0000 0x4 0x0
+#define MX7D_PAD_LPSR_GPIO1_IO00__WDOG1_WDOG_ANY 0x0000 0x0030 0x0000 0x2 0x0
+#define MX7D_PAD_LPSR_GPIO1_IO00__WDOG1_WDOG_B 0x0000 0x0030 0x0000 0x3 0x0
+#define MX7D_PAD_LPSR_GPIO1_IO00__WDOG1_WDOG__RST_B_DEB 0x0000 0x0030 0x0000 0x4 0x0
#define MX7D_PAD_LPSR_GPIO1_IO01__GPIO1_IO1 0x0004 0x0034 0x0000 0x0 0x0
#define MX7D_PAD_LPSR_GPIO1_IO01__PWM1_OUT 0x0004 0x0034 0x0000 0x1 0x0
#define MX7D_PAD_LPSR_GPIO1_IO01__CCM_ENET_REF_CLK3 0x0004 0x0034 0x0000 0x2 0x0
diff --git a/arch/arm/boot/dts/imx7d-sdb.dts b/arch/arm/boot/dts/imx7d-sdb.dts
index 5be01a1bf840..44637cabcc56 100644
--- a/arch/arm/boot/dts/imx7d-sdb.dts
+++ b/arch/arm/boot/dts/imx7d-sdb.dts
@@ -52,46 +52,100 @@
reg = <0x80000000 0x80000000>;
};
- regulators {
- compatible = "simple-bus";
+ spi4 {
+ compatible = "spi-gpio";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_spi4>;
+ gpio-sck = <&gpio1 13 GPIO_ACTIVE_HIGH>;
+ gpio-mosi = <&gpio1 9 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&gpio1 12 GPIO_ACTIVE_HIGH>;
+ num-chipselects = <1>;
#address-cells = <1>;
#size-cells = <0>;
- reg_usb_otg1_vbus: regulator@0 {
- compatible = "regulator-fixed";
+ extended_io: gpio-expander@0 {
+ compatible = "fairchild,74hc595";
+ gpio-controller;
+ #gpio-cells = <2>;
reg = <0>;
- regulator-name = "usb_otg1_vbus";
- regulator-min-microvolt = <5000000>;
- regulator-max-microvolt = <5000000>;
- gpio = <&gpio1 5 GPIO_ACTIVE_HIGH>;
- enable-active-high;
+ registers-number = <1>;
+ spi-max-frequency = <100000>;
};
+ };
- reg_usb_otg2_vbus: regulator@1 {
- compatible = "regulator-fixed";
- reg = <1>;
- regulator-name = "usb_otg2_vbus";
- regulator-min-microvolt = <5000000>;
- regulator-max-microvolt = <5000000>;
- gpio = <&gpio4 7 GPIO_ACTIVE_HIGH>;
- enable-active-high;
- };
+ reg_usb_otg1_vbus: regulator-usb-otg1-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usb_otg1_vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&gpio1 5 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
- reg_can2_3v3: regulator@2 {
- compatible = "regulator-fixed";
- reg = <2>;
- regulator-name = "can2-3v3";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- gpio = <&gpio1 7 GPIO_ACTIVE_LOW>;
- };
+ reg_usb_otg2_vbus: regulator-usb-otg1-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usb_otg2_vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&gpio4 7 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ reg_can2_3v3: regulator-can2-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "can2-3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio1 7 GPIO_ACTIVE_LOW>;
+ };
+
+ reg_vref_1v8: regulator-vref-1v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "vref-1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ reg_brcm: regulator-brcm {
+ compatible = "regulator-fixed";
+ gpio = <&gpio4 21 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ regulator-name = "brcm_reg";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_brcm_reg>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ startup-delay-us = <200000>;
+ };
+
+ reg_lcd_3v3: regulator-lcd-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "lcd-3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&extended_io 7 GPIO_ACTIVE_LOW>;
+ };
- reg_vref_1v8: regulator@3 {
- compatible = "regulator-fixed";
- reg = <3>;
- regulator-name = "vref-1v8";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
+ reg_can2_3v3: regulator-can2-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "can2-3v3";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flexcan2_reg>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio2 14 GPIO_ACTIVE_LOW>;
+ };
+
+ panel {
+ compatible = "innolux,at043tn24";
+ pinctrl-0 = <&pinctrl_backlight>;
+ enable-gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>;
+ power-supply = <&reg_lcd_3v3>;
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&display_out>;
+ };
};
};
};
@@ -145,6 +199,7 @@
phy-mode = "rgmii";
phy-handle = <&ethphy0>;
fsl,magic-packet;
+ phy-reset-gpios = <&extended_io 5 GPIO_ACTIVE_LOW>;
status = "okay";
mdio {
@@ -174,6 +229,13 @@
status = "okay";
};
+&flexcan2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flexcan2>;
+ xceiver-supply = <&reg_can2_3v3>;
+ status = "okay";
+};
+
&i2c1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c1>;
@@ -262,8 +324,8 @@
};
vgen6_reg: vldo4 {
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <3300000>;
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
regulator-always-on;
};
};
@@ -299,38 +361,17 @@
&lcdif {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_lcdif>;
- display = <&display0>;
status = "okay";
- display0: display {
- bits-per-pixel = <16>;
- bus-width = <24>;
-
- display-timings {
- native-mode = <&timing0>;
-
- timing0: timing0 {
- clock-frequency = <9200000>;
- hactive = <480>;
- vactive = <272>;
- hfront-porch = <8>;
- hback-porch = <4>;
- hsync-len = <41>;
- vback-porch = <2>;
- vfront-porch = <4>;
- vsync-len = <10>;
- hsync-active = <0>;
- vsync-active = <0>;
- de-active = <1>;
- pixelclk-active = <0>;
- };
+ port {
+ display_out: endpoint {
+ remote-endpoint = <&panel_in>;
};
};
};
-&pwm1 {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_pwm1>;
+&pcie {
+ reset-gpio = <&extended_io 1 GPIO_ACTIVE_LOW>;
status = "okay";
};
@@ -342,6 +383,15 @@
status = "okay";
};
+&uart6 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart6>;
+ assigned-clocks = <&clks IMX7D_UART6_ROOT_SRC>;
+ assigned-clock-parents = <&clks IMX7D_PLL_SYS_MAIN_240M_CLK>;
+ uart-has-rtscts;
+ status = "okay";
+};
+
&usbotg1 {
vbus-supply = <&reg_usb_otg1_vbus>;
status = "okay";
@@ -363,6 +413,19 @@
status = "okay";
};
+&usdhc2 {
+ pinctrl-names = "default", "state_100mhz", "state_200mhz";
+ pinctrl-0 = <&pinctrl_usdhc2>;
+ pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
+ pinctrl-2 = <&pinctrl_usdhc2_200mhz>;
+ wakeup-source;
+ keep-power-in-suspend;
+ non-removable;
+ vmmc-supply = <&reg_brcm>;
+ fsl,tuning-step = <2>;
+ status = "okay";
+};
+
&usdhc3 {
pinctrl-names = "default", "state_100mhz", "state_200mhz";
pinctrl-0 = <&pinctrl_usdhc3>;
@@ -387,6 +450,12 @@
pinctrl-0 = <&pinctrl_hog>;
imx7d-sdb {
+ pinctrl_brcm_reg: brcmreggrp {
+ fsl,pins = <
+ MX7D_PAD_ECSPI2_MOSI__GPIO4_IO21 0x14
+ >;
+ };
+
pinctrl_ecspi3: ecspi3grp {
fsl,pins = <
MX7D_PAD_SAI2_TX_SYNC__ECSPI3_MISO 0x2
@@ -432,6 +501,20 @@
>;
};
+ pinctrl_flexcan2: flexcan2grp {
+ fsl,pins = <
+ MX7D_PAD_GPIO1_IO14__FLEXCAN2_RX 0x59
+ MX7D_PAD_GPIO1_IO15__FLEXCAN2_TX 0x59
+ >;
+ };
+
+ pinctrl_flexcan2_reg: flexcan2reggrp {
+ fsl,pins = <
+ MX7D_PAD_EPDC_DATA14__GPIO2_IO14 0x59 /* CAN_STBY */
+ >;
+ };
+
+
pinctrl_hog: hoggrp {
fsl,pins = <
MX7D_PAD_UART3_CTS_B__GPIO4_IO7 0x14
@@ -501,6 +584,14 @@
>;
};
+ pinctrl_spi4: spi4grp {
+ fsl,pins = <
+ MX7D_PAD_GPIO1_IO09__GPIO1_IO9 0x59
+ MX7D_PAD_GPIO1_IO12__GPIO1_IO12 0x59
+ MX7D_PAD_GPIO1_IO13__GPIO1_IO13 0x59
+ >;
+ };
+
pinctrl_tsc2046_pendown: tsc2046_pendown {
fsl,pins = <
MX7D_PAD_EPDC_BDR1__GPIO2_IO29 0x59
@@ -554,7 +645,6 @@
MX7D_PAD_SD2_DATA1__SD2_DATA1 0x59
MX7D_PAD_SD2_DATA2__SD2_DATA2 0x59
MX7D_PAD_SD2_DATA3__SD2_DATA3 0x59
- MX7D_PAD_ECSPI2_MOSI__GPIO4_IO21 0x59 /* WL_REG_ON */
>;
};
@@ -634,13 +724,13 @@
&iomuxc_lpsr {
pinctrl_wdog: wdoggrp {
fsl,pins = <
- MX7D_PAD_LPSR_GPIO1_IO00__WDOD1_WDOG_B 0x74
+ MX7D_PAD_LPSR_GPIO1_IO00__WDOG1_WDOG_B 0x74
>;
};
- pinctrl_pwm1: pwm1grp {
+ pinctrl_backlight: backlightgrp {
fsl,pins = <
- MX7D_PAD_LPSR_GPIO1_IO01__PWM1_OUT 0x110b0
+ MX7D_PAD_LPSR_GPIO1_IO01__GPIO1_IO1 0x110b0
>;
};
};
diff --git a/arch/arm/boot/dts/imx7d.dtsi b/arch/arm/boot/dts/imx7d.dtsi
index f6dee41a05d9..4d308d17f040 100644
--- a/arch/arm/boot/dts/imx7d.dtsi
+++ b/arch/arm/boot/dts/imx7d.dtsi
@@ -42,6 +42,7 @@
*/
#include "imx7s.dtsi"
+#include <dt-bindings/reset/imx7-reset.h>
/ {
cpus {
@@ -127,6 +128,42 @@
fsl,num-rx-queues=<3>;
status = "disabled";
};
+
+ pcie: pcie@0x33800000 {
+ compatible = "fsl,imx7d-pcie", "snps,dw-pcie";
+ reg = <0x33800000 0x4000>,
+ <0x4ff00000 0x80000>;
+ reg-names = "dbi", "config";
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ ranges = <0x81000000 0 0 0x4ff80000 0 0x00010000 /* downstream I/O */
+ 0x82000000 0 0x40000000 0x40000000 0 0x0ff00000>; /* non-prefetchable memory */
+ num-lanes = <1>;
+ interrupts = <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "msi";
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 0 0x7>;
+ interrupt-map = <0 0 0 1 &intc GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 0 2 &intc GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 0 3 &intc GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 0 4 &intc GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clks IMX7D_PCIE_CTRL_ROOT_CLK>,
+ <&clks IMX7D_PLL_ENET_MAIN_100M_CLK>,
+ <&clks IMX7D_PCIE_PHY_ROOT_CLK>;
+ clock-names = "pcie", "pcie_bus", "pcie_phy";
+ assigned-clocks = <&clks IMX7D_PCIE_CTRL_ROOT_SRC>,
+ <&clks IMX7D_PCIE_PHY_ROOT_SRC>;
+ assigned-clock-parents = <&clks IMX7D_PLL_ENET_MAIN_250M_CLK>,
+ <&clks IMX7D_PLL_ENET_MAIN_100M_CLK>;
+
+ fsl,max-link-speed = <2>;
+ power-domains = <&pgc_pcie_phy>;
+ resets = <&src IMX7_RESET_PCIEPHY>,
+ <&src IMX7_RESET_PCIE_CTRL_APPS_EN>;
+ reset-names = "pciephy", "apps";
+ status = "disabled";
+ };
};
&ca_funnel_ports {
diff --git a/arch/arm/boot/dts/imx7s-warp.dts b/arch/arm/boot/dts/imx7s-warp.dts
index d5237fd0fa65..07b63f8b7314 100644
--- a/arch/arm/boot/dts/imx7s-warp.dts
+++ b/arch/arm/boot/dts/imx7s-warp.dts
@@ -295,6 +295,7 @@
assigned-clocks = <&clks IMX7D_USDHC3_ROOT_CLK>;
assigned-clock-rates = <400000000>;
bus-width = <8>;
+ no-1-8-v;
fsl,tuning-step = <2>;
non-removable;
status = "okay";
@@ -442,7 +443,7 @@
&iomuxc_lpsr {
pinctrl_wdog: wdoggrp {
fsl,pins = <
- MX7D_PAD_LPSR_GPIO1_IO00__WDOD1_WDOG_B 0x74
+ MX7D_PAD_LPSR_GPIO1_IO00__WDOG1_WDOG_B 0x74
>;
};
};
diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
index c4f12fd2e044..82ad26e766eb 100644
--- a/arch/arm/boot/dts/imx7s.dtsi
+++ b/arch/arm/boot/dts/imx7s.dtsi
@@ -42,6 +42,7 @@
*/
#include <dt-bindings/clock/imx7d-clock.h>
+#include <dt-bindings/power/imx7-power.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
@@ -119,7 +120,7 @@
#address-cells = <1>;
#size-cells = <1>;
compatible = "simple-bus";
- interrupt-parent = <&intc>;
+ interrupt-parent = <&gpc>;
ranges;
funnel@30041000 {
@@ -301,6 +302,7 @@
interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
#interrupt-cells = <3>;
interrupt-controller;
+ interrupt-parent = <&intc>;
reg = <0x31001000 0x1000>,
<0x31002000 0x2000>,
<0x31004000 0x2000>,
@@ -309,6 +311,7 @@
timer {
compatible = "arm,armv7-timer";
+ interrupt-parent = <&intc>;
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
@@ -488,7 +491,8 @@
};
gpr: iomuxc-gpr@30340000 {
- compatible = "fsl,imx7d-iomuxc-gpr", "syscon";
+ compatible = "fsl,imx7d-iomuxc-gpr",
+ "fsl,imx6q-iomuxc-gpr", "syscon";
reg = <0x30340000 0x10000>;
};
@@ -516,6 +520,7 @@
anatop-min-bit-val = <8>;
anatop-min-voltage = <800000>;
anatop-max-voltage = <1200000>;
+ anatop-enable-bit = <0>;
};
};
@@ -535,6 +540,7 @@
compatible = "syscon-poweroff";
regmap = <&snvs>;
offset = <0x38>;
+ value = <0x60>;
mask = <0x60>;
};
@@ -563,6 +569,27 @@
interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
#reset-cells = <1>;
};
+
+ gpc: gpc@303a0000 {
+ compatible = "fsl,imx7d-gpc";
+ reg = <0x303a0000 0x10000>;
+ interrupt-controller;
+ interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
+ #interrupt-cells = <3>;
+ interrupt-parent = <&intc>;
+ #power-domain-cells = <1>;
+
+ pgc {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pgc_pcie_phy: pgc-power-domain@IMX7_POWER_DOMAIN_PCIE_PHY {
+ #power-domain-cells = <0>;
+ reg = <IMX7_POWER_DOMAIN_PCIE_PHY>;
+ power-supply = <&reg_1p0d>;
+ };
+ };
+ };
};
aips2: aips-bus@30400000 {
@@ -609,7 +636,7 @@
clocks = <&clks IMX7D_PWM1_ROOT_CLK>,
<&clks IMX7D_PWM1_ROOT_CLK>;
clock-names = "ipg", "per";
- #pwm-cells = <2>;
+ #pwm-cells = <3>;
status = "disabled";
};
@@ -620,7 +647,7 @@
clocks = <&clks IMX7D_PWM2_ROOT_CLK>,
<&clks IMX7D_PWM2_ROOT_CLK>;
clock-names = "ipg", "per";
- #pwm-cells = <2>;
+ #pwm-cells = <3>;
status = "disabled";
};
@@ -631,7 +658,7 @@
clocks = <&clks IMX7D_PWM3_ROOT_CLK>,
<&clks IMX7D_PWM3_ROOT_CLK>;
clock-names = "ipg", "per";
- #pwm-cells = <2>;
+ #pwm-cells = <3>;
status = "disabled";
};
@@ -642,7 +669,7 @@
clocks = <&clks IMX7D_PWM4_ROOT_CLK>,
<&clks IMX7D_PWM4_ROOT_CLK>;
clock-names = "ipg", "per";
- #pwm-cells = <2>;
+ #pwm-cells = <3>;
status = "disabled";
};
@@ -934,8 +961,8 @@
compatible = "fsl,imx7d-usdhc", "fsl,imx6sl-usdhc";
reg = <0x30b40000 0x10000>;
interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clks IMX7D_CLK_DUMMY>,
- <&clks IMX7D_CLK_DUMMY>,
+ clocks = <&clks IMX7D_IPG_ROOT_CLK>,
+ <&clks IMX7D_NAND_USDHC_BUS_ROOT_CLK>,
<&clks IMX7D_USDHC1_ROOT_CLK>;
clock-names = "ipg", "ahb", "per";
bus-width = <4>;
@@ -946,8 +973,8 @@
compatible = "fsl,imx7d-usdhc", "fsl,imx6sl-usdhc";
reg = <0x30b50000 0x10000>;
interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clks IMX7D_CLK_DUMMY>,
- <&clks IMX7D_CLK_DUMMY>,
+ clocks = <&clks IMX7D_IPG_ROOT_CLK>,
+ <&clks IMX7D_NAND_USDHC_BUS_ROOT_CLK>,
<&clks IMX7D_USDHC2_ROOT_CLK>;
clock-names = "ipg", "ahb", "per";
bus-width = <4>;
@@ -958,8 +985,8 @@
compatible = "fsl,imx7d-usdhc", "fsl,imx6sl-usdhc";
reg = <0x30b60000 0x10000>;
interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clks IMX7D_CLK_DUMMY>,
- <&clks IMX7D_CLK_DUMMY>,
+ clocks = <&clks IMX7D_IPG_ROOT_CLK>,
+ <&clks IMX7D_NAND_USDHC_BUS_ROOT_CLK>,
<&clks IMX7D_USDHC3_ROOT_CLK>;
clock-names = "ipg", "ahb", "per";
bus-width = <4>;
@@ -995,5 +1022,36 @@
status = "disabled";
};
};
+
+ dma_apbh: dma-apbh@33000000 {
+ compatible = "fsl,imx7d-dma-apbh", "fsl,imx28-dma-apbh";
+ reg = <0x33000000 0x2000>;
+ interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "gpmi0", "gpmi1", "gpmi2", "gpmi3";
+ #dma-cells = <1>;
+ dma-channels = <4>;
+ clocks = <&clks IMX7D_NAND_USDHC_BUS_RAWNAND_CLK>;
+ };
+
+ gpmi: gpmi-nand@33002000{
+ compatible = "fsl,imx7d-gpmi-nand";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x33002000 0x2000>, <0x33004000 0x4000>;
+ reg-names = "gpmi-nand", "bch";
+ interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "bch";
+ clocks = <&clks IMX7D_NAND_RAWNAND_CLK>,
+ <&clks IMX7D_NAND_USDHC_BUS_RAWNAND_CLK>;
+ clock-names = "gpmi_io", "gpmi_bch_apb";
+ dmas = <&dma_apbh 0>;
+ dma-names = "rx-tx";
+ status = "disabled";
+ assigned-clocks = <&clks IMX7D_NAND_ROOT_SRC>;
+ assigned-clock-parents = <&clks IMX7D_PLL_ENET_MAIN_500M_CLK>;
+ };
};
};
diff --git a/arch/arm/boot/dts/imx7ulp-pinfunc.h b/arch/arm/boot/dts/imx7ulp-pinfunc.h
new file mode 100644
index 000000000000..fe511775b518
--- /dev/null
+++ b/arch/arm/boot/dts/imx7ulp-pinfunc.h
@@ -0,0 +1,468 @@
+/*
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __DTS_IMX7ULP_PINFUNC_H
+#define __DTS_IMX7ULP_PINFUNC_H
+
+/*
+ * The pin function ID is a tuple of
+ * <mux_conf_reg input_reg mux_mode input_val>
+ */
+
+#define IMX7ULP_PAD_PTC0__PTC0 0x0000 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC0__TRACE_D15 0x0000 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTC0__LPUART4_CTS_B 0x0000 0x0244 0x4 0x1
+#define IMX7ULP_PAD_PTC0__LPI2C4_SCL 0x0000 0x0278 0x5 0x1
+#define IMX7ULP_PAD_PTC0__TPM4_CLKIN 0x0000 0x0298 0x6 0x1
+#define IMX7ULP_PAD_PTC0__FB_AD0 0x0000 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC1__PTC1 0x0004 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC1__TRACE_D14 0x0004 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTC1__LPUART4_RTS_B 0x0004 0x0000 0x4 0x0
+#define IMX7ULP_PAD_PTC1__LPI2C4_SDA 0x0004 0x027c 0x5 0x1
+#define IMX7ULP_PAD_PTC1__TPM4_CH0 0x0004 0x0280 0x6 0x1
+#define IMX7ULP_PAD_PTC1__FB_AD1 0x0004 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC2__PTC2 0x0008 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC2__TRACE_D13 0x0008 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTC2__LPUART4_TX 0x0008 0x024c 0x4 0x1
+#define IMX7ULP_PAD_PTC2__LPI2C4_HREQ 0x0008 0x0274 0x5 0x1
+#define IMX7ULP_PAD_PTC2__TPM4_CH1 0x0008 0x0284 0x6 0x1
+#define IMX7ULP_PAD_PTC2__FB_AD2 0x0008 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC3__PTC3 0x000c 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC3__TRACE_D12 0x000c 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTC3__LPUART4_RX 0x000c 0x0248 0x4 0x1
+#define IMX7ULP_PAD_PTC3__TPM4_CH2 0x000c 0x0288 0x6 0x1
+#define IMX7ULP_PAD_PTC3__FB_AD3 0x000c 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC4__PTC4 0x0010 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC4__TRACE_D11 0x0010 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTC4__FXIO1_D0 0x0010 0x0204 0x2 0x1
+#define IMX7ULP_PAD_PTC4__LPSPI2_PCS1 0x0010 0x02a0 0x3 0x1
+#define IMX7ULP_PAD_PTC4__LPUART5_CTS_B 0x0010 0x0250 0x4 0x1
+#define IMX7ULP_PAD_PTC4__LPI2C5_SCL 0x0010 0x02bc 0x5 0x1
+#define IMX7ULP_PAD_PTC4__TPM4_CH3 0x0010 0x028c 0x6 0x1
+#define IMX7ULP_PAD_PTC4__FB_AD4 0x0010 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC5__PTC5 0x0014 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC5__TRACE_D10 0x0014 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTC5__FXIO1_D1 0x0014 0x0208 0x2 0x1
+#define IMX7ULP_PAD_PTC5__LPSPI2_PCS2 0x0014 0x02a4 0x3 0x1
+#define IMX7ULP_PAD_PTC5__LPUART5_RTS_B 0x0014 0x0000 0x4 0x0
+#define IMX7ULP_PAD_PTC5__LPI2C5_SDA 0x0014 0x02c0 0x5 0x1
+#define IMX7ULP_PAD_PTC5__TPM4_CH4 0x0014 0x0290 0x6 0x1
+#define IMX7ULP_PAD_PTC5__FB_AD5 0x0014 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC6__PTC6 0x0018 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC6__TRACE_D9 0x0018 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTC6__FXIO1_D2 0x0018 0x020c 0x2 0x1
+#define IMX7ULP_PAD_PTC6__LPSPI2_PCS3 0x0018 0x02a8 0x3 0x1
+#define IMX7ULP_PAD_PTC6__LPUART5_TX 0x0018 0x0258 0x4 0x1
+#define IMX7ULP_PAD_PTC6__LPI2C5_HREQ 0x0018 0x02b8 0x5 0x1
+#define IMX7ULP_PAD_PTC6__TPM4_CH5 0x0018 0x0294 0x6 0x1
+#define IMX7ULP_PAD_PTC6__FB_AD6 0x0018 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC7__PTC7 0x001c 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC7__TRACE_D8 0x001c 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTC7__FXIO1_D3 0x001c 0x0210 0x2 0x1
+#define IMX7ULP_PAD_PTC7__LPUART5_RX 0x001c 0x0254 0x4 0x1
+#define IMX7ULP_PAD_PTC7__TPM5_CH1 0x001c 0x02c8 0x6 0x1
+#define IMX7ULP_PAD_PTC7__FB_AD7 0x001c 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC8__PTC8 0x0020 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC8__TRACE_D7 0x0020 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTC8__FXIO1_D4 0x0020 0x0214 0x2 0x1
+#define IMX7ULP_PAD_PTC8__LPSPI2_SIN 0x0020 0x02b0 0x3 0x1
+#define IMX7ULP_PAD_PTC8__LPUART6_CTS_B 0x0020 0x025c 0x4 0x1
+#define IMX7ULP_PAD_PTC8__LPI2C6_SCL 0x0020 0x02fc 0x5 0x1
+#define IMX7ULP_PAD_PTC8__TPM5_CLKIN 0x0020 0x02cc 0x6 0x1
+#define IMX7ULP_PAD_PTC8__FB_AD8 0x0020 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC9__PTC9 0x0024 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC9__TRACE_D6 0x0024 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTC9__FXIO1_D5 0x0024 0x0218 0x2 0x1
+#define IMX7ULP_PAD_PTC9__LPSPI2_SOUT 0x0024 0x02b4 0x3 0x1
+#define IMX7ULP_PAD_PTC9__LPUART6_RTS_B 0x0024 0x0000 0x4 0x0
+#define IMX7ULP_PAD_PTC9__LPI2C6_SDA 0x0024 0x0300 0x5 0x1
+#define IMX7ULP_PAD_PTC9__TPM5_CH0 0x0024 0x02c4 0x6 0x1
+#define IMX7ULP_PAD_PTC9__FB_AD9 0x0024 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC10__PTC10 0x0028 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC10__TRACE_D5 0x0028 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTC10__FXIO1_D6 0x0028 0x021c 0x2 0x1
+#define IMX7ULP_PAD_PTC10__LPSPI2_SCK 0x0028 0x02ac 0x3 0x1
+#define IMX7ULP_PAD_PTC10__LPUART6_TX 0x0028 0x0264 0x4 0x1
+#define IMX7ULP_PAD_PTC10__LPI2C6_HREQ 0x0028 0x02f8 0x5 0x1
+#define IMX7ULP_PAD_PTC10__TPM7_CH3 0x0028 0x02e8 0x6 0x1
+#define IMX7ULP_PAD_PTC10__FB_AD10 0x0028 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC11__PTC11 0x002c 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC11__TRACE_D4 0x002c 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTC11__FXIO1_D7 0x002c 0x0220 0x2 0x1
+#define IMX7ULP_PAD_PTC11__LPSPI2_PCS0 0x002c 0x029c 0x3 0x1
+#define IMX7ULP_PAD_PTC11__LPUART6_RX 0x002c 0x0260 0x4 0x1
+#define IMX7ULP_PAD_PTC11__TPM7_CH4 0x002c 0x02ec 0x6 0x1
+#define IMX7ULP_PAD_PTC11__FB_AD11 0x002c 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC12__PTC12 0x0030 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC12__TRACE_D3 0x0030 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTC12__FXIO1_D8 0x0030 0x0224 0x2 0x1
+#define IMX7ULP_PAD_PTC12__LPSPI3_PCS1 0x0030 0x0314 0x3 0x1
+#define IMX7ULP_PAD_PTC12__LPUART7_CTS_B 0x0030 0x0268 0x4 0x1
+#define IMX7ULP_PAD_PTC12__LPI2C7_SCL 0x0030 0x0308 0x5 0x1
+#define IMX7ULP_PAD_PTC12__TPM7_CH5 0x0030 0x02f0 0x6 0x1
+#define IMX7ULP_PAD_PTC12__FB_AD12 0x0030 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC13__PTC13 0x0034 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC13__TRACE_D2 0x0034 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTC13__FXIO1_D9 0x0034 0x0228 0x2 0x1
+#define IMX7ULP_PAD_PTC13__LPSPI3_PCS2 0x0034 0x0318 0x3 0x1
+#define IMX7ULP_PAD_PTC13__LPUART7_RTS_B 0x0034 0x0000 0x4 0x0
+#define IMX7ULP_PAD_PTC13__LPI2C7_SDA 0x0034 0x030c 0x5 0x1
+#define IMX7ULP_PAD_PTC13__TPM7_CLKIN 0x0034 0x02f4 0x6 0x1
+#define IMX7ULP_PAD_PTC13__FB_AD13 0x0034 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC14__PTC14 0x0038 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC14__TRACE_D1 0x0038 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTC14__FXIO1_D10 0x0038 0x022c 0x2 0x1
+#define IMX7ULP_PAD_PTC14__LPSPI3_PCS3 0x0038 0x031c 0x3 0x1
+#define IMX7ULP_PAD_PTC14__LPUART7_TX 0x0038 0x0270 0x4 0x1
+#define IMX7ULP_PAD_PTC14__LPI2C7_HREQ 0x0038 0x0304 0x5 0x1
+#define IMX7ULP_PAD_PTC14__TPM7_CH0 0x0038 0x02dc 0x6 0x1
+#define IMX7ULP_PAD_PTC14__FB_AD14 0x0038 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC15__PTC15 0x003c 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC15__TRACE_D0 0x003c 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTC15__FXIO1_D11 0x003c 0x0230 0x2 0x1
+#define IMX7ULP_PAD_PTC15__LPUART7_RX 0x003c 0x026c 0x4 0x1
+#define IMX7ULP_PAD_PTC15__TPM7_CH1 0x003c 0x02e0 0x6 0x1
+#define IMX7ULP_PAD_PTC15__FB_AD15 0x003c 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC16__PTC16 0x0040 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC16__TRACE_CLKOUT 0x0040 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTC16__FXIO1_D12 0x0040 0x0234 0x2 0x1
+#define IMX7ULP_PAD_PTC16__LPSPI3_SIN 0x0040 0x0324 0x3 0x1
+#define IMX7ULP_PAD_PTC16__TPM7_CH2 0x0040 0x02e4 0x6 0x1
+#define IMX7ULP_PAD_PTC16__FB_ALE_FB_CS1_B_FB_TS_B 0x0040 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC17__PTC17 0x0044 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC17__FXIO1_D13 0x0044 0x0238 0x2 0x1
+#define IMX7ULP_PAD_PTC17__LPSPI3_SOUT 0x0044 0x0328 0x3 0x1
+#define IMX7ULP_PAD_PTC17__TPM6_CLKIN 0x0044 0x02d8 0x6 0x1
+#define IMX7ULP_PAD_PTC17__FB_CS0_B 0x0044 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC18__PTC18 0x0048 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC18__FXIO1_D14 0x0048 0x023c 0x2 0x1
+#define IMX7ULP_PAD_PTC18__LPSPI3_SCK 0x0048 0x0320 0x3 0x1
+#define IMX7ULP_PAD_PTC18__TPM6_CH0 0x0048 0x02d0 0x6 0x1
+#define IMX7ULP_PAD_PTC18__FB_OE_B 0x0048 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTC19__PTC19 0x004c 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTC19__FXIO1_D15 0x004c 0x0240 0x2 0x1
+#define IMX7ULP_PAD_PTC19__LPSPI3_PCS0 0x004c 0x0310 0x3 0x1
+#define IMX7ULP_PAD_PTC19__TPM6_CH1 0x004c 0x02d4 0x6 0x1
+#define IMX7ULP_PAD_PTC19__FB_A16 0x004c 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTD0__PTD0 0x0080 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTD0__SDHC0_RESET_B 0x0080 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTD1__PTD1 0x0084 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTD1__SDHC0_CMD 0x0084 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTD2__PTD2 0x0088 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTD2__SDHC0_CLK 0x0088 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTD3__PTD3 0x008c 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTD3__SDHC0_D7 0x008c 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTD4__PTD4 0x0090 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTD4__SDHC0_D6 0x0090 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTD5__PTD5 0x0094 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTD5__SDHC0_D5 0x0094 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTD6__PTD6 0x0098 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTD6__SDHC0_D4 0x0098 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTD7__PTD7 0x009c 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTD7__SDHC0_D3 0x009c 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTD8__PTD8 0x00a0 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTD8__TPM4_CLKIN 0x00a0 0x0298 0x6 0x2
+#define IMX7ULP_PAD_PTD8__SDHC0_D2 0x00a0 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTD9__PTD9 0x00a4 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTD9__TPM4_CH0 0x00a4 0x0280 0x6 0x2
+#define IMX7ULP_PAD_PTD9__SDHC0_D1 0x00a4 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTD10__PTD10 0x00a8 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTD10__TPM4_CH1 0x00a8 0x0284 0x6 0x2
+#define IMX7ULP_PAD_PTD10__SDHC0_D0 0x00a8 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTD11__PTD11 0x00ac 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTD11__TPM4_CH2 0x00ac 0x0288 0x6 0x2
+#define IMX7ULP_PAD_PTD11__SDHC0_DQS 0x00ac 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTE0__PTE0 0x0100 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTE0__FXIO1_D31 0x0100 0x0000 0x2 0x0
+#define IMX7ULP_PAD_PTE0__LPSPI2_PCS1 0x0100 0x02a0 0x3 0x2
+#define IMX7ULP_PAD_PTE0__LPUART4_CTS_B 0x0100 0x0244 0x4 0x2
+#define IMX7ULP_PAD_PTE0__LPI2C4_SCL 0x0100 0x0278 0x5 0x2
+#define IMX7ULP_PAD_PTE0__SDHC1_D1 0x0100 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTE0__FB_A25 0x0100 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTE1__PTE1 0x0104 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTE1__FXIO1_D30 0x0104 0x0000 0x2 0x0
+#define IMX7ULP_PAD_PTE1__LPSPI2_PCS2 0x0104 0x02a4 0x3 0x2
+#define IMX7ULP_PAD_PTE1__LPUART4_RTS_B 0x0104 0x0000 0x4 0x0
+#define IMX7ULP_PAD_PTE1__LPI2C4_SDA 0x0104 0x027c 0x5 0x2
+#define IMX7ULP_PAD_PTE1__SDHC1_D0 0x0104 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTE1__FB_A26 0x0104 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTE2__PTE2 0x0108 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTE2__FXIO1_D29 0x0108 0x0000 0x2 0x0
+#define IMX7ULP_PAD_PTE2__LPSPI2_PCS3 0x0108 0x02a8 0x3 0x2
+#define IMX7ULP_PAD_PTE2__LPUART4_TX 0x0108 0x024c 0x4 0x2
+#define IMX7ULP_PAD_PTE2__LPI2C4_HREQ 0x0108 0x0274 0x5 0x2
+#define IMX7ULP_PAD_PTE2__SDHC1_CLK 0x0108 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTE3__PTE3 0x010c 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTE3__FXIO1_D28 0x010c 0x0000 0x2 0x0
+#define IMX7ULP_PAD_PTE3__LPUART4_RX 0x010c 0x0248 0x4 0x2
+#define IMX7ULP_PAD_PTE3__TPM5_CH1 0x010c 0x02c8 0x6 0x2
+#define IMX7ULP_PAD_PTE3__SDHC1_CMD 0x010c 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTE4__PTE4 0x0110 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTE4__FXIO1_D27 0x0110 0x0000 0x2 0x0
+#define IMX7ULP_PAD_PTE4__LPSPI2_SIN 0x0110 0x02b0 0x3 0x2
+#define IMX7ULP_PAD_PTE4__LPUART5_CTS_B 0x0110 0x0250 0x4 0x2
+#define IMX7ULP_PAD_PTE4__LPI2C5_SCL 0x0110 0x02bc 0x5 0x2
+#define IMX7ULP_PAD_PTE4__TPM5_CLKIN 0x0110 0x02cc 0x6 0x2
+#define IMX7ULP_PAD_PTE4__SDHC1_D3 0x0110 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTE5__PTE5 0x0114 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTE5__FXIO1_D26 0x0114 0x0000 0x2 0x0
+#define IMX7ULP_PAD_PTE5__LPSPI2_SOUT 0x0114 0x02b4 0x3 0x2
+#define IMX7ULP_PAD_PTE5__LPUART5_RTS_B 0x0114 0x0000 0x4 0x0
+#define IMX7ULP_PAD_PTE5__LPI2C5_SDA 0x0114 0x02c0 0x5 0x2
+#define IMX7ULP_PAD_PTE5__TPM5_CH0 0x0114 0x02c4 0x6 0x2
+#define IMX7ULP_PAD_PTE5__SDHC1_D2 0x0114 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTE6__PTE6 0x0118 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTE6__FXIO1_D25 0x0118 0x0000 0x2 0x0
+#define IMX7ULP_PAD_PTE6__LPSPI2_SCK 0x0118 0x02ac 0x3 0x2
+#define IMX7ULP_PAD_PTE6__LPUART5_TX 0x0118 0x0258 0x4 0x2
+#define IMX7ULP_PAD_PTE6__LPI2C5_HREQ 0x0118 0x02b8 0x5 0x2
+#define IMX7ULP_PAD_PTE6__TPM7_CH3 0x0118 0x02e8 0x6 0x2
+#define IMX7ULP_PAD_PTE6__SDHC1_D4 0x0118 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTE6__FB_A17 0x0118 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTE7__PTE7 0x011c 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTE7__TRACE_D7 0x011c 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTE7__VIU_FID 0x011c 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTE7__FXIO1_D24 0x011c 0x0000 0x2 0x0
+#define IMX7ULP_PAD_PTE7__LPSPI2_PCS0 0x011c 0x029c 0x3 0x2
+#define IMX7ULP_PAD_PTE7__LPUART5_RX 0x011c 0x0254 0x4 0x2
+#define IMX7ULP_PAD_PTE7__TPM7_CH4 0x011c 0x02ec 0x6 0x2
+#define IMX7ULP_PAD_PTE7__SDHC1_D5 0x011c 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTE7__FB_A18 0x011c 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTE8__PTE8 0x0120 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTE8__TRACE_D6 0x0120 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTE8__VIU_D16 0x0120 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTE8__FXIO1_D23 0x0120 0x0000 0x2 0x0
+#define IMX7ULP_PAD_PTE8__LPSPI3_PCS1 0x0120 0x0314 0x3 0x2
+#define IMX7ULP_PAD_PTE8__LPUART6_CTS_B 0x0120 0x025c 0x4 0x2
+#define IMX7ULP_PAD_PTE8__LPI2C6_SCL 0x0120 0x02fc 0x5 0x2
+#define IMX7ULP_PAD_PTE8__TPM7_CH5 0x0120 0x02f0 0x6 0x2
+#define IMX7ULP_PAD_PTE8__SDHC1_WP 0x0120 0x0200 0x7 0x1
+#define IMX7ULP_PAD_PTE8__SDHC1_D6 0x0120 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTE8__FB_CS3_B_FB_BE7_0_BLS31_24_B 0x0120 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTE9__PTE9 0x0124 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTE9__TRACE_D5 0x0124 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTE9__VIU_D17 0x0124 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTE9__FXIO1_D22 0x0124 0x0000 0x2 0x0
+#define IMX7ULP_PAD_PTE9__LPSPI3_PCS2 0x0124 0x0318 0x3 0x2
+#define IMX7ULP_PAD_PTE9__LPUART6_RTS_B 0x0124 0x0000 0x4 0x0
+#define IMX7ULP_PAD_PTE9__LPI2C6_SDA 0x0124 0x0300 0x5 0x2
+#define IMX7ULP_PAD_PTE9__TPM7_CLKIN 0x0124 0x02f4 0x6 0x2
+#define IMX7ULP_PAD_PTE9__SDHC1_CD 0x0124 0x032c 0x7 0x1
+#define IMX7ULP_PAD_PTE9__SDHC1_D7 0x0124 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTE9__FB_TBST_B_FB_CS2_B_FB_BE15_8_BLS23_16_B 0x0124 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTE10__PTE10 0x0128 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTE10__TRACE_D4 0x0128 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTE10__VIU_D18 0x0128 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTE10__FXIO1_D21 0x0128 0x0000 0x2 0x0
+#define IMX7ULP_PAD_PTE10__LPSPI3_PCS3 0x0128 0x031c 0x3 0x2
+#define IMX7ULP_PAD_PTE10__LPUART6_TX 0x0128 0x0264 0x4 0x2
+#define IMX7ULP_PAD_PTE10__LPI2C6_HREQ 0x0128 0x02f8 0x5 0x2
+#define IMX7ULP_PAD_PTE10__TPM7_CH0 0x0128 0x02dc 0x6 0x2
+#define IMX7ULP_PAD_PTE10__SDHC1_VS 0x0128 0x0000 0x7 0x0
+#define IMX7ULP_PAD_PTE10__SDHC1_DQS 0x0128 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTE10__FB_A19 0x0128 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTE11__PTE11 0x012c 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTE11__TRACE_D3 0x012c 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTE11__VIU_D19 0x012c 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTE11__FXIO1_D20 0x012c 0x0000 0x2 0x0
+#define IMX7ULP_PAD_PTE11__LPUART6_RX 0x012c 0x0260 0x4 0x2
+#define IMX7ULP_PAD_PTE11__TPM7_CH1 0x012c 0x02e0 0x6 0x2
+#define IMX7ULP_PAD_PTE11__SDHC1_RESET_B 0x012c 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTE11__FB_A20 0x012c 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTE12__PTE12 0x0130 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTE12__TRACE_D2 0x0130 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTE12__VIU_D20 0x0130 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTE12__FXIO1_D19 0x0130 0x0000 0x2 0x0
+#define IMX7ULP_PAD_PTE12__LPSPI3_SIN 0x0130 0x0324 0x3 0x2
+#define IMX7ULP_PAD_PTE12__LPUART7_CTS_B 0x0130 0x0268 0x4 0x2
+#define IMX7ULP_PAD_PTE12__LPI2C7_SCL 0x0130 0x0308 0x5 0x2
+#define IMX7ULP_PAD_PTE12__TPM7_CH2 0x0130 0x02e4 0x6 0x2
+#define IMX7ULP_PAD_PTE12__SDHC1_WP 0x0130 0x0200 0x8 0x2
+#define IMX7ULP_PAD_PTE12__FB_A21 0x0130 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTE13__PTE13 0x0134 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTE13__TRACE_D1 0x0134 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTE13__VIU_D21 0x0134 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTE13__FXIO1_D18 0x0134 0x0000 0x2 0x0
+#define IMX7ULP_PAD_PTE13__LPSPI3_SOUT 0x0134 0x0328 0x3 0x2
+#define IMX7ULP_PAD_PTE13__LPUART7_RTS_B 0x0134 0x0000 0x4 0x0
+#define IMX7ULP_PAD_PTE13__LPI2C7_SDA 0x0134 0x030c 0x5 0x2
+#define IMX7ULP_PAD_PTE13__TPM6_CLKIN 0x0134 0x02d8 0x6 0x2
+#define IMX7ULP_PAD_PTE13__SDHC1_CD 0x0134 0x032c 0x8 0x2
+#define IMX7ULP_PAD_PTE13__FB_A22 0x0134 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTE14__PTE14 0x0138 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTE14__TRACE_D0 0x0138 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTE14__VIU_D22 0x0138 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTE14__FXIO1_D17 0x0138 0x0000 0x2 0x0
+#define IMX7ULP_PAD_PTE14__LPSPI3_SCK 0x0138 0x0320 0x3 0x2
+#define IMX7ULP_PAD_PTE14__LPUART7_TX 0x0138 0x0270 0x4 0x2
+#define IMX7ULP_PAD_PTE14__LPI2C7_HREQ 0x0138 0x0304 0x5 0x2
+#define IMX7ULP_PAD_PTE14__TPM6_CH0 0x0138 0x02d0 0x6 0x2
+#define IMX7ULP_PAD_PTE14__SDHC1_VS 0x0138 0x0000 0x8 0x0
+#define IMX7ULP_PAD_PTE14__FB_A23 0x0138 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTE15__PTE15 0x013c 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTE15__TRACE_CLKOUT 0x013c 0x0000 0xa 0x0
+#define IMX7ULP_PAD_PTE15__VIU_D23 0x013c 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTE15__FXIO1_D16 0x013c 0x0000 0x2 0x0
+#define IMX7ULP_PAD_PTE15__LPSPI3_PCS0 0x013c 0x0310 0x3 0x2
+#define IMX7ULP_PAD_PTE15__LPUART7_RX 0x013c 0x026c 0x4 0x2
+#define IMX7ULP_PAD_PTE15__TPM6_CH1 0x013c 0x02d4 0x6 0x2
+#define IMX7ULP_PAD_PTE15__FB_A24 0x013c 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF0__PTF0 0x0180 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF0__VIU_DE 0x0180 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF0__LPUART4_CTS_B 0x0180 0x0244 0x4 0x3
+#define IMX7ULP_PAD_PTF0__LPI2C4_SCL 0x0180 0x0278 0x5 0x3
+#define IMX7ULP_PAD_PTF0__TPM4_CLKIN 0x0180 0x0298 0x6 0x3
+#define IMX7ULP_PAD_PTF0__FB_RW_B 0x0180 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF1__PTF1 0x0184 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF1__VIU_HSYNC 0x0184 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF1__LPUART4_RTS_B 0x0184 0x0000 0x4 0x0
+#define IMX7ULP_PAD_PTF1__LPI2C4_SDA 0x0184 0x027c 0x5 0x3
+#define IMX7ULP_PAD_PTF1__TPM4_CH0 0x0184 0x0280 0x6 0x3
+#define IMX7ULP_PAD_PTF1__CLKOUT 0x0184 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF2__PTF2 0x0188 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF2__VIU_VSYNC 0x0188 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF2__LPUART4_TX 0x0188 0x024c 0x4 0x3
+#define IMX7ULP_PAD_PTF2__LPI2C4_HREQ 0x0188 0x0274 0x5 0x3
+#define IMX7ULP_PAD_PTF2__TPM4_CH1 0x0188 0x0284 0x6 0x3
+#define IMX7ULP_PAD_PTF2__FB_TSIZ1_FB_CS5_B_FB_BE23_16_BLS15_8_B 0x0188 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF3__PTF3 0x018c 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF3__VIU_PCLK 0x018c 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF3__LPUART4_RX 0x018c 0x0248 0x4 0x3
+#define IMX7ULP_PAD_PTF3__TPM4_CH2 0x018c 0x0288 0x6 0x3
+#define IMX7ULP_PAD_PTF3__FB_AD16 0x018c 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF4__PTF4 0x0190 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF4__VIU_D0 0x0190 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF4__FXIO1_D0 0x0190 0x0204 0x2 0x2
+#define IMX7ULP_PAD_PTF4__LPSPI2_PCS1 0x0190 0x02a0 0x3 0x3
+#define IMX7ULP_PAD_PTF4__LPUART5_CTS_B 0x0190 0x0250 0x4 0x3
+#define IMX7ULP_PAD_PTF4__LPI2C5_SCL 0x0190 0x02bc 0x5 0x3
+#define IMX7ULP_PAD_PTF4__TPM4_CH3 0x0190 0x028c 0x6 0x2
+#define IMX7ULP_PAD_PTF4__FB_AD17 0x0190 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF5__PTF5 0x0194 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF5__VIU_D1 0x0194 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF5__FXIO1_D1 0x0194 0x0208 0x2 0x2
+#define IMX7ULP_PAD_PTF5__LPSPI2_PCS2 0x0194 0x02a4 0x3 0x3
+#define IMX7ULP_PAD_PTF5__LPUART5_RTS_B 0x0194 0x0000 0x4 0x0
+#define IMX7ULP_PAD_PTF5__LPI2C5_SDA 0x0194 0x02c0 0x5 0x3
+#define IMX7ULP_PAD_PTF5__TPM4_CH4 0x0194 0x0290 0x6 0x2
+#define IMX7ULP_PAD_PTF5__FB_AD18 0x0194 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF6__PTF6 0x0198 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF6__VIU_D2 0x0198 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF6__FXIO1_D2 0x0198 0x020c 0x2 0x2
+#define IMX7ULP_PAD_PTF6__LPSPI2_PCS3 0x0198 0x02a8 0x3 0x3
+#define IMX7ULP_PAD_PTF6__LPUART5_TX 0x0198 0x0258 0x4 0x3
+#define IMX7ULP_PAD_PTF6__LPI2C5_HREQ 0x0198 0x02b8 0x5 0x3
+#define IMX7ULP_PAD_PTF6__TPM4_CH5 0x0198 0x0294 0x6 0x2
+#define IMX7ULP_PAD_PTF6__FB_AD19 0x0198 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF7__PTF7 0x019c 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF7__VIU_D3 0x019c 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF7__FXIO1_D3 0x019c 0x0210 0x2 0x2
+#define IMX7ULP_PAD_PTF7__LPUART5_RX 0x019c 0x0254 0x4 0x3
+#define IMX7ULP_PAD_PTF7__TPM5_CH1 0x019c 0x02c8 0x6 0x3
+#define IMX7ULP_PAD_PTF7__FB_AD20 0x019c 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF8__PTF8 0x01a0 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF8__USB1_ULPI_CLK 0x01a0 0x0000 0xb 0x0
+#define IMX7ULP_PAD_PTF8__VIU_D4 0x01a0 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF8__FXIO1_D4 0x01a0 0x0214 0x2 0x2
+#define IMX7ULP_PAD_PTF8__LPSPI2_SIN 0x01a0 0x02b0 0x3 0x3
+#define IMX7ULP_PAD_PTF8__LPUART6_CTS_B 0x01a0 0x025c 0x4 0x3
+#define IMX7ULP_PAD_PTF8__LPI2C6_SCL 0x01a0 0x02fc 0x5 0x3
+#define IMX7ULP_PAD_PTF8__TPM5_CLKIN 0x01a0 0x02cc 0x6 0x3
+#define IMX7ULP_PAD_PTF8__FB_AD21 0x01a0 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF9__PTF9 0x01a4 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF9__USB1_ULPI_NXT 0x01a4 0x0000 0xb 0x0
+#define IMX7ULP_PAD_PTF9__VIU_D5 0x01a4 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF9__FXIO1_D5 0x01a4 0x0218 0x2 0x2
+#define IMX7ULP_PAD_PTF9__LPSPI2_SOUT 0x01a4 0x02b4 0x3 0x3
+#define IMX7ULP_PAD_PTF9__LPUART6_RTS_B 0x01a4 0x0000 0x4 0x0
+#define IMX7ULP_PAD_PTF9__LPI2C6_SDA 0x01a4 0x0300 0x5 0x3
+#define IMX7ULP_PAD_PTF9__TPM5_CH0 0x01a4 0x02c4 0x6 0x3
+#define IMX7ULP_PAD_PTF9__FB_AD22 0x01a4 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF10__PTF10 0x01a8 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF10__USB1_ULPI_STP 0x01a8 0x0000 0xb 0x0
+#define IMX7ULP_PAD_PTF10__VIU_D6 0x01a8 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF10__FXIO1_D6 0x01a8 0x021c 0x2 0x2
+#define IMX7ULP_PAD_PTF10__LPSPI2_SCK 0x01a8 0x02ac 0x3 0x3
+#define IMX7ULP_PAD_PTF10__LPUART6_TX 0x01a8 0x0264 0x4 0x3
+#define IMX7ULP_PAD_PTF10__LPI2C6_HREQ 0x01a8 0x02f8 0x5 0x3
+#define IMX7ULP_PAD_PTF10__TPM7_CH3 0x01a8 0x02e8 0x6 0x3
+#define IMX7ULP_PAD_PTF10__FB_AD23 0x01a8 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF11__PTF11 0x01ac 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF11__USB1_ULPI_DIR 0x01ac 0x0000 0xb 0x0
+#define IMX7ULP_PAD_PTF11__VIU_D7 0x01ac 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF11__FXIO1_D7 0x01ac 0x0220 0x2 0x2
+#define IMX7ULP_PAD_PTF11__LPSPI2_PCS0 0x01ac 0x029c 0x3 0x3
+#define IMX7ULP_PAD_PTF11__LPUART6_RX 0x01ac 0x0260 0x4 0x3
+#define IMX7ULP_PAD_PTF11__TPM7_CH4 0x01ac 0x02ec 0x6 0x3
+#define IMX7ULP_PAD_PTF11__FB_CS4_B_FB_TSIZ0_FB_BE31_24_BLS7_0_B 0x01ac 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF12__PTF12 0x01b0 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF12__USB1_ULPI_DATA0 0x01b0 0x0000 0xb 0x0
+#define IMX7ULP_PAD_PTF12__VIU_D8 0x01b0 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF12__FXIO1_D8 0x01b0 0x0224 0x2 0x2
+#define IMX7ULP_PAD_PTF12__LPSPI3_PCS1 0x01b0 0x0314 0x3 0x3
+#define IMX7ULP_PAD_PTF12__LPUART7_CTS_B 0x01b0 0x0268 0x4 0x3
+#define IMX7ULP_PAD_PTF12__LPI2C7_SCL 0x01b0 0x0308 0x5 0x3
+#define IMX7ULP_PAD_PTF12__TPM7_CH5 0x01b0 0x02f0 0x6 0x3
+#define IMX7ULP_PAD_PTF12__FB_AD24 0x01b0 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF13__PTF13 0x01b4 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF13__USB1_ULPI_DATA1 0x01b4 0x0000 0xb 0x0
+#define IMX7ULP_PAD_PTF13__VIU_D9 0x01b4 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF13__FXIO1_D9 0x01b4 0x0228 0x2 0x2
+#define IMX7ULP_PAD_PTF13__LPSPI3_PCS2 0x01b4 0x0318 0x3 0x3
+#define IMX7ULP_PAD_PTF13__LPUART7_RTS_B 0x01b4 0x0000 0x4 0x0
+#define IMX7ULP_PAD_PTF13__LPI2C7_SDA 0x01b4 0x030c 0x5 0x3
+#define IMX7ULP_PAD_PTF13__TPM7_CLKIN 0x01b4 0x02f4 0x6 0x3
+#define IMX7ULP_PAD_PTF13__FB_AD25 0x01b4 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF14__PTF14 0x01b8 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF14__USB1_ULPI_DATA2 0x01b8 0x0000 0xb 0x0
+#define IMX7ULP_PAD_PTF14__VIU_D10 0x01b8 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF14__FXIO1_D10 0x01b8 0x022c 0x2 0x2
+#define IMX7ULP_PAD_PTF14__LPSPI3_PCS3 0x01b8 0x031c 0x3 0x3
+#define IMX7ULP_PAD_PTF14__LPUART7_TX 0x01b8 0x0270 0x4 0x3
+#define IMX7ULP_PAD_PTF14__LPI2C7_HREQ 0x01b8 0x0304 0x5 0x3
+#define IMX7ULP_PAD_PTF14__TPM7_CH0 0x01b8 0x02dc 0x6 0x3
+#define IMX7ULP_PAD_PTF14__FB_AD26 0x01b8 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF15__PTF15 0x01bc 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF15__USB1_ULPI_DATA3 0x01bc 0x0000 0xb 0x0
+#define IMX7ULP_PAD_PTF15__VIU_D11 0x01bc 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF15__FXIO1_D11 0x01bc 0x0230 0x2 0x2
+#define IMX7ULP_PAD_PTF15__LPUART7_RX 0x01bc 0x026c 0x4 0x3
+#define IMX7ULP_PAD_PTF15__TPM7_CH1 0x01bc 0x02e0 0x6 0x3
+#define IMX7ULP_PAD_PTF15__FB_AD27 0x01bc 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF16__PTF16 0x01c0 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF16__USB1_ULPI_DATA4 0x01c0 0x0000 0xb 0x0
+#define IMX7ULP_PAD_PTF16__VIU_D12 0x01c0 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF16__FXIO1_D12 0x01c0 0x0234 0x2 0x2
+#define IMX7ULP_PAD_PTF16__LPSPI3_SIN 0x01c0 0x0324 0x3 0x3
+#define IMX7ULP_PAD_PTF16__TPM7_CH2 0x01c0 0x02e4 0x6 0x3
+#define IMX7ULP_PAD_PTF16__FB_AD28 0x01c0 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF17__PTF17 0x01c4 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF17__USB1_ULPI_DATA5 0x01c4 0x0000 0xb 0x0
+#define IMX7ULP_PAD_PTF17__VIU_D13 0x01c4 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF17__FXIO1_D13 0x01c4 0x0238 0x2 0x2
+#define IMX7ULP_PAD_PTF17__LPSPI3_SOUT 0x01c4 0x0328 0x3 0x3
+#define IMX7ULP_PAD_PTF17__TPM6_CLKIN 0x01c4 0x02d8 0x6 0x3
+#define IMX7ULP_PAD_PTF17__FB_AD29 0x01c4 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF18__PTF18 0x01c8 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF18__USB1_ULPI_DATA6 0x01c8 0x0000 0xb 0x0
+#define IMX7ULP_PAD_PTF18__VIU_D14 0x01c8 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF18__FXIO1_D14 0x01c8 0x023c 0x2 0x2
+#define IMX7ULP_PAD_PTF18__LPSPI3_SCK 0x01c8 0x0320 0x3 0x3
+#define IMX7ULP_PAD_PTF18__TPM6_CH0 0x01c8 0x02d0 0x6 0x3
+#define IMX7ULP_PAD_PTF18__FB_AD30 0x01c8 0x0000 0x9 0x0
+#define IMX7ULP_PAD_PTF19__PTF19 0x01cc 0x0000 0x1 0x0
+#define IMX7ULP_PAD_PTF19__USB1_ULPI_DATA7 0x01cc 0x0000 0xb 0x0
+#define IMX7ULP_PAD_PTF19__VIU_D15 0x01cc 0x0000 0xc 0x0
+#define IMX7ULP_PAD_PTF19__FXIO1_D15 0x01cc 0x0240 0x2 0x2
+#define IMX7ULP_PAD_PTF19__LPSPI3_PCS0 0x01cc 0x0310 0x3 0x3
+#define IMX7ULP_PAD_PTF19__TPM6_CH1 0x01cc 0x02d4 0x6 0x3
+#define IMX7ULP_PAD_PTF19__FB_AD31 0x01cc 0x0000 0x9 0x0
+
+#endif /* __DTS_IMX7ULP_PINFUNC_H */
diff --git a/arch/arm/boot/dts/keystone-k2e-evm.dts b/arch/arm/boot/dts/keystone-k2e-evm.dts
index ae1ebe7ee021..f1f32c54e72f 100644
--- a/arch/arm/boot/dts/keystone-k2e-evm.dts
+++ b/arch/arm/boot/dts/keystone-k2e-evm.dts
@@ -16,6 +16,19 @@
compatible = "ti,k2e-evm", "ti,k2e", "ti,keystone";
model = "Texas Instruments Keystone 2 Edison EVM";
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ dsp_common_memory: dsp-common-memory@81f800000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00000008 0x1f800000 0x00000000 0x800000>;
+ reusable;
+ status = "okay";
+ };
+ };
+
soc {
clocks {
@@ -160,3 +173,8 @@
reg = <1>;
};
};
+
+&dsp0 {
+ memory-region = <&dsp_common_memory>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/keystone-k2e.dtsi b/arch/arm/boot/dts/keystone-k2e.dtsi
index 0dd4cdd6d40c..819ab8345916 100644
--- a/arch/arm/boot/dts/keystone-k2e.dtsi
+++ b/arch/arm/boot/dts/keystone-k2e.dtsi
@@ -45,6 +45,10 @@
};
};
+ aliases {
+ rproc0 = &dsp0;
+ };
+
soc {
/include/ "keystone-k2e-clocks.dtsi"
@@ -114,6 +118,22 @@
gpio,syscon-dev = <&devctrl 0x240>;
};
+ dsp0: dsp@10800000 {
+ compatible = "ti,k2e-dsp";
+ reg = <0x10800000 0x00080000>,
+ <0x10e00000 0x00008000>,
+ <0x10f00000 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ clocks = <&clkgem0>;
+ ti,syscon-dev = <&devctrl 0x844>;
+ resets = <&pscrst 0>;
+ interrupt-parent = <&kirq0>;
+ interrupts = <0 8>;
+ interrupt-names = "vring", "exception";
+ kick-gpios = <&dspgpio0 27 0>;
+ status = "disabled";
+ };
+
pcie1: pcie@21020000 {
compatible = "ti,keystone-pcie","snps,dw-pcie";
clocks = <&clkpcie1>;
diff --git a/arch/arm/boot/dts/keystone-k2g-evm.dts b/arch/arm/boot/dts/keystone-k2g-evm.dts
index 692fcbb1434a..f462f1043531 100644
--- a/arch/arm/boot/dts/keystone-k2g-evm.dts
+++ b/arch/arm/boot/dts/keystone-k2g-evm.dts
@@ -20,11 +20,31 @@
compatible = "ti,k2g-evm", "ti,k2g", "ti,keystone";
model = "Texas Instruments K2G General Purpose EVM";
- memory {
+ memory@800000000 {
device_type = "memory";
reg = <0x00000008 0x00000000 0x00000000 0x80000000>;
};
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ dsp_common_memory: dsp-common-memory@81f800000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00000008 0x1f800000 0x00000000 0x800000>;
+ reusable;
+ status = "okay";
+ };
+ };
+
+ vcc3v3_dcin_reg: fixedregulator-vcc3v3-dcin {
+ compatible = "regulator-fixed";
+ regulator-name = "mmc0_fixed";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
};
&k2g_pinctrl {
@@ -34,6 +54,33 @@
K2G_CORE_IOPAD(0x11d0) (BUFFER_CLASS_B | PIN_PULLDOWN | MUX_MODE0) /* uart0_txd.uart0_txd */
>;
};
+
+ mmc0_pins: pinmux_mmc0_pins {
+ pinctrl-single,pins = <
+ K2G_CORE_IOPAD(0x1300) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE2) /* mmc0_dat3.mmc0_dat3 */
+ K2G_CORE_IOPAD(0x1304) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE2) /* mmc0_dat2.mmc0_dat2 */
+ K2G_CORE_IOPAD(0x1308) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE2) /* mmc0_dat1.mmc0_dat1 */
+ K2G_CORE_IOPAD(0x130c) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE2) /* mmc0_dat0.mmc0_dat0 */
+ K2G_CORE_IOPAD(0x1310) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE2) /* mmc0_clk.mmc0_clk */
+ K2G_CORE_IOPAD(0x1314) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE2) /* mmc0_cmd.mmc0_cmd */
+ K2G_CORE_IOPAD(0x12ec) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE3) /* mmc0_sdcd.gpio1_12 */
+ >;
+ };
+
+ mmc1_pins: pinmux_mmc1_pins {
+ pinctrl-single,pins = <
+ K2G_CORE_IOPAD(0x10ec) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0) /* mmc1_dat7.mmc1_dat7 */
+ K2G_CORE_IOPAD(0x10f0) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0) /* mmc1_dat6.mmc1_dat6 */
+ K2G_CORE_IOPAD(0x10f4) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0) /* mmc1_dat5.mmc1_dat5 */
+ K2G_CORE_IOPAD(0x10f8) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0) /* mmc1_dat4.mmc1_dat4 */
+ K2G_CORE_IOPAD(0x10fc) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0) /* mmc1_dat3.mmc1_dat3 */
+ K2G_CORE_IOPAD(0x1100) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0) /* mmc1_dat2.mmc1_dat2 */
+ K2G_CORE_IOPAD(0x1104) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0) /* mmc1_dat1.mmc1_dat1 */
+ K2G_CORE_IOPAD(0x1108) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0) /* mmc1_dat0.mmc1_dat0 */
+ K2G_CORE_IOPAD(0x110c) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0) /* mmc1_clk.mmc1_clk */
+ K2G_CORE_IOPAD(0x1110) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0) /* mmc1_cmd.mmc1_cmd */
+ >;
+ };
};
&uart0 {
@@ -41,3 +88,27 @@
pinctrl-0 = <&uart0_pins>;
status = "okay";
};
+
+&gpio1 {
+ status = "okay";
+};
+
+&mmc0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_pins>;
+ vmmc-supply = <&vcc3v3_dcin_reg>;
+ cd-gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+&mmc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc1_pins>;
+ vmmc-supply = <&vcc3v3_dcin_reg>; /* VCC3V3_EMMC is connected to VCC3V3_DCIN */
+ status = "okay";
+};
+
+&dsp0 {
+ memory-region = <&dsp_common_memory>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/keystone-k2g-ice.dts b/arch/arm/boot/dts/keystone-k2g-ice.dts
new file mode 100644
index 000000000000..78692745e0af
--- /dev/null
+++ b/arch/arm/boot/dts/keystone-k2g-ice.dts
@@ -0,0 +1,53 @@
+/*
+ * Device Tree Source for K2G Industrial Communication Engine EVM
+ *
+ * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+/dts-v1/;
+
+#include "keystone-k2g.dtsi"
+
+/ {
+ compatible = "ti,k2g-ice", "ti,k2g", "ti,keystone";
+ model = "Texas Instruments K2G Industrial Communication EVM";
+
+ memory@800000000 {
+ device_type = "memory";
+ reg = <0x00000008 0x00000000 0x00000000 0x20000000>;
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ dsp_common_memory: dsp-common-memory@81f800000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00000008 0x1f800000 0x00000000 0x800000>;
+ reusable;
+ status = "okay";
+ };
+ };
+};
+
+&k2g_pinctrl {
+ uart0_pins: pinmux_uart0_pins {
+ pinctrl-single,pins = <
+ K2G_CORE_IOPAD(0x11cc) (BUFFER_CLASS_B | PULL_DISABLE | MUX_MODE0) /* uart0_rxd.uart0_rxd */
+ K2G_CORE_IOPAD(0x11d0) (BUFFER_CLASS_B | PIN_PULLDOWN | MUX_MODE0) /* uart0_txd.uart0_txd */
+ >;
+ };
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pins>;
+ status = "okay";
+};
+
+&dsp0 {
+ memory-region = <&dsp_common_memory>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/keystone-k2g.dtsi b/arch/arm/boot/dts/keystone-k2g.dtsi
index f59567fe7d91..826b286665e6 100644
--- a/arch/arm/boot/dts/keystone-k2g.dtsi
+++ b/arch/arm/boot/dts/keystone-k2g.dtsi
@@ -15,7 +15,7 @@
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/pinctrl/keystone.h>
-#include "skeleton.dtsi"
+#include <dt-bindings/gpio/gpio.h>
/ {
compatible = "ti,k2g","ti,keystone";
@@ -24,8 +24,11 @@
#size-cells = <2>;
interrupt-parent = <&gic>;
+ chosen { };
+
aliases {
serial0 = &uart0;
+ rproc0 = &dsp0;
};
cpus {
@@ -112,6 +115,24 @@
status = "disabled";
};
+ dcan0: can@0260B200 {
+ compatible = "ti,am4372-d_can", "ti,am3352-d_can";
+ reg = <0x0260B200 0x200>;
+ interrupts = <GIC_SPI 190 IRQ_TYPE_EDGE_RISING>;
+ status = "disabled";
+ power-domains = <&k2g_pds 0x0008>;
+ clocks = <&k2g_clks 0x0008 1>;
+ };
+
+ dcan1: can@0260B400 {
+ compatible = "ti,am4372-d_can", "ti,am3352-d_can";
+ reg = <0x0260B400 0x200>;
+ interrupts = <GIC_SPI 193 IRQ_TYPE_EDGE_RISING>;
+ status = "disabled";
+ power-domains = <&k2g_pds 0x0009>;
+ clocks = <&k2g_clks 0x0009 1>;
+ };
+
kirq0: keystone_irq@026202a0 {
compatible = "ti,keystone-irq";
interrupts = <GIC_SPI 1 IRQ_TYPE_EDGE_RISING>;
@@ -127,6 +148,22 @@
gpio,syscon-dev = <&devctrl 0x240>;
};
+ dsp0: dsp@10800000 {
+ compatible = "ti,k2g-dsp";
+ reg = <0x10800000 0x00100000>,
+ <0x10e00000 0x00008000>,
+ <0x10f00000 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ power-domains = <&k2g_pds 0x0046>;
+ ti,syscon-dev = <&devctrl 0x844>;
+ resets = <&k2g_reset 0x0046 0x1>;
+ interrupt-parent = <&kirq0>;
+ interrupts = <0 8>;
+ interrupt-names = "vring", "exception";
+ kick-gpios = <&dspgpio0 27 0>;
+ status = "disabled";
+ };
+
msgmgr: msgmgr@02a00000 {
compatible = "ti,k2g-message-manager";
#mbox-cells = <2>;
@@ -138,5 +175,173 @@
interrupts = <GIC_SPI 324 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 327 IRQ_TYPE_LEVEL_HIGH>;
};
+
+ pmmc: pmmc@02921c00 {
+ compatible = "ti,k2g-sci";
+ /*
+ * In case of rare platforms that does not use k2g as
+ * system master, use /delete-property/
+ */
+ ti,system-reboot-controller;
+ mbox-names = "rx", "tx";
+ mboxes= <&msgmgr 5 2>,
+ <&msgmgr 0 0>;
+ reg-names = "debug_messages";
+ reg = <0x02921c00 0x400>;
+
+ k2g_pds: power-controller {
+ compatible = "ti,sci-pm-domain";
+ #power-domain-cells = <1>;
+ };
+
+ k2g_clks: clocks {
+ compatible = "ti,k2g-sci-clk";
+ #clock-cells = <2>;
+ };
+
+ k2g_reset: reset-controller {
+ compatible = "ti,sci-reset";
+ #reset-cells = <2>;
+ };
+ };
+
+ gpio0: gpio@2603000 {
+ compatible = "ti,k2g-gpio", "ti,keystone-gpio";
+ reg = <0x02603000 0x100>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ interrupts = <GIC_SPI 432 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 433 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 434 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 435 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 436 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 437 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 438 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 439 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 440 IRQ_TYPE_EDGE_RISING>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ ti,ngpio = <144>;
+ ti,davinci-gpio-unbanked = <0>;
+ clocks = <&k2g_clks 0x001b 0x0>;
+ clock-names = "gpio";
+ };
+
+ gpio1: gpio@260a000 {
+ compatible = "ti,k2g-gpio", "ti,keystone-gpio";
+ reg = <0x0260a000 0x100>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupts = <GIC_SPI 442 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 443 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 444 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 445 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 446 IRQ_TYPE_EDGE_RISING>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ ti,ngpio = <68>;
+ ti,davinci-gpio-unbanked = <0>;
+ clocks = <&k2g_clks 0x001c 0x0>;
+ clock-names = "gpio";
+ };
+
+ edma0: edma@02700000 {
+ compatible = "ti,k2g-edma3-tpcc", "ti,edma3-tpcc";
+ reg = <0x02700000 0x8000>;
+ reg-names = "edma3_cc";
+ interrupts = <GIC_SPI 200 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 216 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 217 IRQ_TYPE_EDGE_RISING>;
+ interrupt-names = "edma3_ccint", "emda3_mperr",
+ "edma3_ccerrint";
+ dma-requests = <64>;
+ #dma-cells = <2>;
+
+ ti,tptcs = <&edma0_tptc0 7>, <&edma0_tptc1 0>;
+
+ ti,edma-memcpy-channels = <32 33 34 35>;
+
+ power-domains = <&k2g_pds 0x3f>;
+ };
+
+ edma0_tptc0: tptc@02760000 {
+ compatible = "ti,k2g-edma3-tptc", "ti,edma3-tptc";
+ reg = <0x02760000 0x400>;
+ power-domains = <&k2g_pds 0x3f>;
+ };
+
+ edma0_tptc1: tptc@02768000 {
+ compatible = "ti,k2g-edma3-tptc", "ti,edma3-tptc";
+ reg = <0x02768000 0x400>;
+ power-domains = <&k2g_pds 0x3f>;
+ };
+
+ edma1: edma@02728000 {
+ compatible = "ti,k2g-edma3-tpcc", "ti,edma3-tpcc";
+ reg = <0x02728000 0x8000>;
+ reg-names = "edma3_cc";
+ interrupts = <GIC_SPI 208 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 219 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 220 IRQ_TYPE_EDGE_RISING>;
+ interrupt-names = "edma3_ccint", "emda3_mperr",
+ "edma3_ccerrint";
+ dma-requests = <64>;
+ #dma-cells = <2>;
+
+ ti,tptcs = <&edma1_tptc0 7>, <&edma1_tptc1 0>;
+
+ /*
+ * memcpy is disabled, can be enabled with:
+ * ti,edma-memcpy-channels = <12 13 14 15>;
+ * for example.
+ */
+
+ power-domains = <&k2g_pds 0x4f>;
+ };
+
+ edma1_tptc0: tptc@027b0000 {
+ compatible = "ti,k2g-edma3-tptc", "ti,edma3-tptc";
+ reg = <0x027b0000 0x400>;
+ power-domains = <&k2g_pds 0x4f>;
+ };
+
+ edma1_tptc1: tptc@027b8000 {
+ compatible = "ti,k2g-edma3-tptc", "ti,edma3-tptc";
+ reg = <0x027b8000 0x400>;
+ power-domains = <&k2g_pds 0x4f>;
+ };
+
+ mmc0: mmc@23000000 {
+ compatible = "ti,k2g-hsmmc", "ti,omap4-hsmmc";
+ reg = <0x23000000 0x400>;
+ interrupts = <GIC_SPI 96 IRQ_TYPE_EDGE_RISING>;
+ dmas = <&edma1 24 0>, <&edma1 25 0>;
+ dma-names = "tx", "rx";
+ bus-width = <4>;
+ ti,needs-special-reset;
+ no-1-8-v;
+ max-frequency = <96000000>;
+ power-domains = <&k2g_pds 0xb>;
+ clocks = <&k2g_clks 0xb 1>, <&k2g_clks 0xb 2>;
+ clock-names = "fck", "mmchsdb_fck";
+ status = "disabled";
+ };
+
+ mmc1: mmc@23100000 {
+ compatible = "ti,k2g-hsmmc", "ti,omap4-hsmmc";
+ reg = <0x23100000 0x400>;
+ interrupts = <GIC_SPI 97 IRQ_TYPE_EDGE_RISING>;
+ dmas = <&edma1 26 0>, <&edma1 27 0>;
+ dma-names = "tx", "rx";
+ bus-width = <8>;
+ ti,needs-special-reset;
+ ti,non-removable;
+ max-frequency = <96000000>;
+ power-domains = <&k2g_pds 0xc>;
+ clocks = <&k2g_clks 0xc 1>, <&k2g_clks 0xc 2>;
+ clock-names = "fck", "mmchsdb_fck";
+ status = "disabled";
+ };
};
};
diff --git a/arch/arm/boot/dts/keystone-k2hk-evm.dts b/arch/arm/boot/dts/keystone-k2hk-evm.dts
index 2156ff92d08f..6dd13b98aaba 100644
--- a/arch/arm/boot/dts/keystone-k2hk-evm.dts
+++ b/arch/arm/boot/dts/keystone-k2hk-evm.dts
@@ -16,6 +16,19 @@
compatible = "ti,k2hk-evm", "ti,k2hk", "ti,keystone";
model = "Texas Instruments Keystone 2 Kepler/Hawking EVM";
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ dsp_common_memory: dsp-common-memory@81f800000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00000008 0x1f800000 0x00000000 0x800000>;
+ reusable;
+ status = "okay";
+ };
+ };
+
soc {
clocks {
refclksys: refclksys {
@@ -184,3 +197,43 @@
reg = <1>;
};
};
+
+&dsp0 {
+ memory-region = <&dsp_common_memory>;
+ status = "okay";
+};
+
+&dsp1 {
+ memory-region = <&dsp_common_memory>;
+ status = "okay";
+};
+
+&dsp2 {
+ memory-region = <&dsp_common_memory>;
+ status = "okay";
+};
+
+&dsp3 {
+ memory-region = <&dsp_common_memory>;
+ status = "okay";
+};
+
+&dsp4 {
+ memory-region = <&dsp_common_memory>;
+ status = "okay";
+};
+
+&dsp5 {
+ memory-region = <&dsp_common_memory>;
+ status = "okay";
+};
+
+&dsp6 {
+ memory-region = <&dsp_common_memory>;
+ status = "okay";
+};
+
+&dsp7 {
+ memory-region = <&dsp_common_memory>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/keystone-k2hk.dtsi b/arch/arm/boot/dts/keystone-k2hk.dtsi
index 69d449430511..31dc00e4e5fd 100644
--- a/arch/arm/boot/dts/keystone-k2hk.dtsi
+++ b/arch/arm/boot/dts/keystone-k2hk.dtsi
@@ -45,6 +45,17 @@
};
};
+ aliases {
+ rproc0 = &dsp0;
+ rproc1 = &dsp1;
+ rproc2 = &dsp2;
+ rproc3 = &dsp3;
+ rproc4 = &dsp4;
+ rproc5 = &dsp5;
+ rproc6 = &dsp6;
+ rproc7 = &dsp7;
+ };
+
soc {
/include/ "keystone-k2hk-clocks.dtsi"
@@ -134,6 +145,134 @@
gpio,syscon-dev = <&devctrl 0x25c>;
};
+ dsp0: dsp@10800000 {
+ compatible = "ti,k2hk-dsp";
+ reg = <0x10800000 0x00100000>,
+ <0x10e00000 0x00008000>,
+ <0x10f00000 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ clocks = <&clkgem0>;
+ ti,syscon-dev = <&devctrl 0x40>;
+ resets = <&pscrst 0>;
+ interrupt-parent = <&kirq0>;
+ interrupts = <0 8>;
+ interrupt-names = "vring", "exception";
+ kick-gpios = <&dspgpio0 27 0>;
+ status = "disabled";
+ };
+
+ dsp1: dsp@11800000 {
+ compatible = "ti,k2hk-dsp";
+ reg = <0x11800000 0x00100000>,
+ <0x11e00000 0x00008000>,
+ <0x11f00000 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ clocks = <&clkgem1>;
+ ti,syscon-dev = <&devctrl 0x44>;
+ resets = <&pscrst 1>;
+ interrupt-parent = <&kirq0>;
+ interrupts = <1 9>;
+ interrupt-names = "vring", "exception";
+ kick-gpios = <&dspgpio1 27 0>;
+ status = "disabled";
+ };
+
+ dsp2: dsp@12800000 {
+ compatible = "ti,k2hk-dsp";
+ reg = <0x12800000 0x00100000>,
+ <0x12e00000 0x00008000>,
+ <0x12f00000 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ clocks = <&clkgem2>;
+ ti,syscon-dev = <&devctrl 0x48>;
+ resets = <&pscrst 2>;
+ interrupt-parent = <&kirq0>;
+ interrupts = <2 10>;
+ interrupt-names = "vring", "exception";
+ kick-gpios = <&dspgpio2 27 0>;
+ status = "disabled";
+ };
+
+ dsp3: dsp@13800000 {
+ compatible = "ti,k2hk-dsp";
+ reg = <0x13800000 0x00100000>,
+ <0x13e00000 0x00008000>,
+ <0x13f00000 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ clocks = <&clkgem3>;
+ ti,syscon-dev = <&devctrl 0x4c>;
+ resets = <&pscrst 3>;
+ interrupt-parent = <&kirq0>;
+ interrupts = <3 11>;
+ interrupt-names = "vring", "exception";
+ kick-gpios = <&dspgpio3 27 0>;
+ status = "disabled";
+ };
+
+ dsp4: dsp@14800000 {
+ compatible = "ti,k2hk-dsp";
+ reg = <0x14800000 0x00100000>,
+ <0x14e00000 0x00008000>,
+ <0x14f00000 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ clocks = <&clkgem4>;
+ ti,syscon-dev = <&devctrl 0x50>;
+ resets = <&pscrst 4>;
+ interrupt-parent = <&kirq0>;
+ interrupts = <4 12>;
+ interrupt-names = "vring", "exception";
+ kick-gpios = <&dspgpio4 27 0>;
+ status = "disabled";
+ };
+
+ dsp5: dsp@15800000 {
+ compatible = "ti,k2hk-dsp";
+ reg = <0x15800000 0x00100000>,
+ <0x15e00000 0x00008000>,
+ <0x15f00000 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ clocks = <&clkgem5>;
+ ti,syscon-dev = <&devctrl 0x54>;
+ resets = <&pscrst 5>;
+ interrupt-parent = <&kirq0>;
+ interrupts = <5 13>;
+ interrupt-names = "vring", "exception";
+ kick-gpios = <&dspgpio5 27 0>;
+ status = "disabled";
+ };
+
+ dsp6: dsp@16800000 {
+ compatible = "ti,k2hk-dsp";
+ reg = <0x16800000 0x00100000>,
+ <0x16e00000 0x00008000>,
+ <0x16f00000 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ clocks = <&clkgem6>;
+ ti,syscon-dev = <&devctrl 0x58>;
+ resets = <&pscrst 6>;
+ interrupt-parent = <&kirq0>;
+ interrupts = <6 14>;
+ interrupt-names = "vring", "exception";
+ kick-gpios = <&dspgpio6 27 0>;
+ status = "disabled";
+ };
+
+ dsp7: dsp@17800000 {
+ compatible = "ti,k2hk-dsp";
+ reg = <0x17800000 0x00100000>,
+ <0x17e00000 0x00008000>,
+ <0x17f00000 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ clocks = <&clkgem7>;
+ ti,syscon-dev = <&devctrl 0x5c>;
+ resets = <&pscrst 7>;
+ interrupt-parent = <&kirq0>;
+ interrupts = <7 15>;
+ interrupt-names = "vring", "exception";
+ kick-gpios = <&dspgpio7 27 0>;
+ status = "disabled";
+ };
+
mdio: mdio@02090300 {
compatible = "ti,keystone_mdio", "ti,davinci_mdio";
#address-cells = <1>;
diff --git a/arch/arm/boot/dts/keystone-k2l-evm.dts b/arch/arm/boot/dts/keystone-k2l-evm.dts
index 056b42f99d7a..528667618db4 100644
--- a/arch/arm/boot/dts/keystone-k2l-evm.dts
+++ b/arch/arm/boot/dts/keystone-k2l-evm.dts
@@ -16,6 +16,19 @@
compatible = "ti,k2l-evm", "ti,k2l", "ti,keystone";
model = "Texas Instruments Keystone 2 Lamarr EVM";
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ dsp_common_memory: dsp-common-memory@81f800000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00000008 0x1f800000 0x00000000 0x800000>;
+ reusable;
+ status = "okay";
+ };
+ };
+
soc {
clocks {
refclksys: refclksys {
@@ -133,3 +146,23 @@
reg = <1>;
};
};
+
+&dsp0 {
+ memory-region = <&dsp_common_memory>;
+ status = "okay";
+};
+
+&dsp1 {
+ memory-region = <&dsp_common_memory>;
+ status = "okay";
+};
+
+&dsp2 {
+ memory-region = <&dsp_common_memory>;
+ status = "okay";
+};
+
+&dsp3 {
+ memory-region = <&dsp_common_memory>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/keystone-k2l.dtsi b/arch/arm/boot/dts/keystone-k2l.dtsi
index 148650406cf7..4431310bc922 100644
--- a/arch/arm/boot/dts/keystone-k2l.dtsi
+++ b/arch/arm/boot/dts/keystone-k2l.dtsi
@@ -33,6 +33,13 @@
};
};
+ aliases {
+ rproc0 = &dsp0;
+ rproc1 = &dsp1;
+ rproc2 = &dsp2;
+ rproc3 = &dsp3;
+ };
+
soc {
/include/ "keystone-k2l-clocks.dtsi"
@@ -268,6 +275,70 @@
gpio,syscon-dev = <&devctrl 0x24c>;
};
+ dsp0: dsp@10800000 {
+ compatible = "ti,k2l-dsp";
+ reg = <0x10800000 0x00100000>,
+ <0x10e00000 0x00008000>,
+ <0x10f00000 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ clocks = <&clkgem0>;
+ ti,syscon-dev = <&devctrl 0x844>;
+ resets = <&pscrst 0>;
+ interrupt-parent = <&kirq0>;
+ interrupts = <0 8>;
+ interrupt-names = "vring", "exception";
+ kick-gpios = <&dspgpio0 27 0>;
+ status = "disabled";
+ };
+
+ dsp1: dsp@11800000 {
+ compatible = "ti,k2l-dsp";
+ reg = <0x11800000 0x00100000>,
+ <0x11e00000 0x00008000>,
+ <0x11f00000 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ clocks = <&clkgem1>;
+ ti,syscon-dev = <&devctrl 0x848>;
+ resets = <&pscrst 1>;
+ interrupt-parent = <&kirq0>;
+ interrupts = <1 9>;
+ interrupt-names = "vring", "exception";
+ kick-gpios = <&dspgpio1 27 0>;
+ status = "disabled";
+ };
+
+ dsp2: dsp@12800000 {
+ compatible = "ti,k2l-dsp";
+ reg = <0x12800000 0x00100000>,
+ <0x12e00000 0x00008000>,
+ <0x12f00000 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ clocks = <&clkgem2>;
+ ti,syscon-dev = <&devctrl 0x84c>;
+ resets = <&pscrst 2>;
+ interrupt-parent = <&kirq0>;
+ interrupts = <2 10>;
+ interrupt-names = "vring", "exception";
+ kick-gpios = <&dspgpio2 27 0>;
+ status = "disabled";
+ };
+
+ dsp3: dsp@13800000 {
+ compatible = "ti,k2l-dsp";
+ reg = <0x13800000 0x00100000>,
+ <0x13e00000 0x00008000>,
+ <0x13f00000 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ clocks = <&clkgem3>;
+ ti,syscon-dev = <&devctrl 0x850>;
+ resets = <&pscrst 3>;
+ interrupt-parent = <&kirq0>;
+ interrupts = <3 11>;
+ interrupt-names = "vring", "exception";
+ kick-gpios = <&dspgpio3 27 0>;
+ status = "disabled";
+ };
+
mdio: mdio@26200f00 {
compatible = "ti,keystone_mdio", "ti,davinci_mdio";
#address-cells = <1>;
diff --git a/arch/arm/boot/dts/kirkwood-6192.dtsi b/arch/arm/boot/dts/kirkwood-6192.dtsi
index d573e03f3134..f003f3f1bd65 100644
--- a/arch/arm/boot/dts/kirkwood-6192.dtsi
+++ b/arch/arm/boot/dts/kirkwood-6192.dtsi
@@ -1,6 +1,6 @@
/ {
mbus@f1000000 {
- pciec: pcie-controller@82000000 {
+ pciec: pcie@82000000 {
compatible = "marvell,kirkwood-pcie";
status = "disabled";
device_type = "pci";
@@ -24,6 +24,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x1 0 1 0
0x81000000 0 0 0x81000000 0x1 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &intc 9>;
marvell,pcie-port = <0>;
diff --git a/arch/arm/boot/dts/kirkwood-6281.dtsi b/arch/arm/boot/dts/kirkwood-6281.dtsi
index 748d0b62f233..47d4b3d3d9e9 100644
--- a/arch/arm/boot/dts/kirkwood-6281.dtsi
+++ b/arch/arm/boot/dts/kirkwood-6281.dtsi
@@ -1,6 +1,6 @@
/ {
mbus@f1000000 {
- pciec: pcie-controller@82000000 {
+ pciec: pcie@82000000 {
compatible = "marvell,kirkwood-pcie";
status = "disabled";
device_type = "pci";
@@ -24,6 +24,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x1 0 1 0
0x81000000 0 0 0x81000000 0x1 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &intc 9>;
marvell,pcie-port = <0>;
diff --git a/arch/arm/boot/dts/kirkwood-6282.dtsi b/arch/arm/boot/dts/kirkwood-6282.dtsi
index bb63d2d50fc5..a13dad0a7c08 100644
--- a/arch/arm/boot/dts/kirkwood-6282.dtsi
+++ b/arch/arm/boot/dts/kirkwood-6282.dtsi
@@ -1,6 +1,6 @@
/ {
mbus@f1000000 {
- pciec: pcie-controller@82000000 {
+ pciec: pcie@82000000 {
compatible = "marvell,kirkwood-pcie";
status = "disabled";
device_type = "pci";
@@ -28,6 +28,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x1 0 1 0
0x81000000 0 0 0x81000000 0x1 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &intc 9>;
marvell,pcie-port = <0>;
@@ -45,6 +46,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x2 0 1 0
0x81000000 0 0 0x81000000 0x2 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &intc 10>;
marvell,pcie-port = <1>;
diff --git a/arch/arm/boot/dts/kirkwood-98dx4122.dtsi b/arch/arm/boot/dts/kirkwood-98dx4122.dtsi
index 720c210d491d..90d4d71b6683 100644
--- a/arch/arm/boot/dts/kirkwood-98dx4122.dtsi
+++ b/arch/arm/boot/dts/kirkwood-98dx4122.dtsi
@@ -1,6 +1,6 @@
/ {
mbus@f1000000 {
- pciec: pcie-controller@82000000 {
+ pciec: pcie@82000000 {
compatible = "marvell,kirkwood-pcie";
status = "disabled";
device_type = "pci";
@@ -24,6 +24,7 @@
#interrupt-cells = <1>;
ranges = <0x82000000 0 0 0x82000000 0x1 0 1 0
0x81000000 0 0 0x81000000 0x1 0 1 0>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &intc 9>;
marvell,pcie-port = <0>;
diff --git a/arch/arm/boot/dts/kirkwood-openblocks_a6.dts b/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
index 94e49f32d5f9..c75da5f0ca48 100644
--- a/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
+++ b/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
@@ -141,7 +141,7 @@
partition@d4000 {
label = "test";
- reg = <0xd4000 0x24000>;
+ reg = <0xd4000 0x20000>;
};
partition@f4000 {
diff --git a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
index 43e9364083de..b4575bbaf085 100644
--- a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
+++ b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
@@ -192,7 +192,7 @@
interrupts-extended = <&intc 83 &omap3_pmx_core 0x11a>;
pinctrl-names = "default";
pinctrl-0 = <&mmc1_pins &mmc1_cd>;
- cd-gpios = <&gpio4 31 IRQ_TYPE_LEVEL_LOW>; /* gpio127 */
+ cd-gpios = <&gpio4 31 GPIO_ACTIVE_LOW>; /* gpio127 */
vmmc-supply = <&vmmc1>;
bus-width = <4>;
cap-power-off-card;
diff --git a/arch/arm/boot/dts/logicpd-torpedo-som.dtsi b/arch/arm/boot/dts/logicpd-torpedo-som.dtsi
index efe53998c961..6d89736c7b44 100644
--- a/arch/arm/boot/dts/logicpd-torpedo-som.dtsi
+++ b/arch/arm/boot/dts/logicpd-torpedo-som.dtsi
@@ -7,6 +7,10 @@
#include <dt-bindings/input/input.h>
/ {
+ chosen {
+ stdout-path = &uart1;
+ };
+
cpus {
cpu@0 {
cpu0-supply = <&vcc>;
diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi
index 45ea57fafa18..9319e1f0f1d8 100644
--- a/arch/arm/boot/dts/ls1021a.dtsi
+++ b/arch/arm/boot/dts/ls1021a.dtsi
@@ -75,7 +75,7 @@
compatible = "arm,cortex-a7";
device_type = "cpu";
reg = <0xf00>;
- clocks = <&cluster1_clk>;
+ clocks = <&clockgen 1 0>;
#cooling-cells = <2>;
};
@@ -83,10 +83,17 @@
compatible = "arm,cortex-a7";
device_type = "cpu";
reg = <0xf01>;
- clocks = <&cluster1_clk>;
+ clocks = <&clockgen 1 0>;
};
};
+ sysclk: sysclk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <100000000>;
+ clock-output-names = "sysclk";
+ };
+
timer {
compatible = "arm,armv7-timer";
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
@@ -122,14 +129,14 @@
};
msi1: msi-controller@1570e00 {
- compatible = "fsl,1s1021a-msi";
+ compatible = "fsl,ls1021a-msi";
reg = <0x0 0x1570e00 0x0 0x8>;
msi-controller;
interrupts = <GIC_SPI 179 IRQ_TYPE_LEVEL_HIGH>;
};
msi2: msi-controller@1570e08 {
- compatible = "fsl,1s1021a-msi";
+ compatible = "fsl,ls1021a-msi";
reg = <0x0 0x1570e08 0x0 0x8>;
msi-controller;
interrupts = <GIC_SPI 180 IRQ_TYPE_LEVEL_HIGH>;
@@ -165,7 +172,7 @@
<0x0 0x20220520 0x0 0x4>;
reg-names = "ahci", "sata-ecc";
interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&platform_clk 1>;
+ clocks = <&clockgen 4 1>;
dma-coherent;
status = "disabled";
};
@@ -216,41 +223,10 @@
};
clockgen: clocking@1ee1000 {
- #address-cells = <1>;
- #size-cells = <1>;
- ranges = <0x0 0x0 0x1ee1000 0x10000>;
-
- sysclk: sysclk {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-output-names = "sysclk";
- };
-
- cga_pll1: pll@800 {
- compatible = "fsl,qoriq-core-pll-2.0";
- #clock-cells = <1>;
- reg = <0x800 0x10>;
- clocks = <&sysclk>;
- clock-output-names = "cga-pll1", "cga-pll1-div2",
- "cga-pll1-div4";
- };
-
- platform_clk: pll@c00 {
- compatible = "fsl,qoriq-core-pll-2.0";
- #clock-cells = <1>;
- reg = <0xc00 0x10>;
- clocks = <&sysclk>;
- clock-output-names = "platform-clk", "platform-clk-div2";
- };
-
- cluster1_clk: clk0c0@0 {
- compatible = "fsl,qoriq-core-mux-2.0";
- #clock-cells = <0>;
- reg = <0x0 0x10>;
- clock-names = "pll1cga", "pll1cga-div2", "pll1cga-div4";
- clocks = <&cga_pll1 0>, <&cga_pll1 1>, <&cga_pll1 2>;
- clock-output-names = "cluster1-clk";
- };
+ compatible = "fsl,ls1021a-clockgen";
+ reg = <0x0 0x1ee1000 0x0 0x1000>;
+ #clock-cells = <2>;
+ clocks = <&sysclk>;
};
tmu: tmu@1f00000 {
@@ -338,7 +314,7 @@
reg = <0x0 0x2100000 0x0 0x10000>;
interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
clock-names = "dspi";
- clocks = <&platform_clk 1>;
+ clocks = <&clockgen 4 1>;
spi-num-chipselects = <6>;
big-endian;
status = "disabled";
@@ -351,7 +327,7 @@
reg = <0x0 0x2110000 0x0 0x10000>;
interrupts = <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>;
clock-names = "dspi";
- clocks = <&platform_clk 1>;
+ clocks = <&clockgen 4 1>;
spi-num-chipselects = <6>;
big-endian;
status = "disabled";
@@ -364,7 +340,7 @@
reg = <0x0 0x2180000 0x0 0x10000>;
interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>;
clock-names = "i2c";
- clocks = <&platform_clk 1>;
+ clocks = <&clockgen 4 1>;
status = "disabled";
};
@@ -375,7 +351,7 @@
reg = <0x0 0x2190000 0x0 0x10000>;
interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
clock-names = "i2c";
- clocks = <&platform_clk 1>;
+ clocks = <&clockgen 4 1>;
status = "disabled";
};
@@ -386,7 +362,7 @@
reg = <0x0 0x21a0000 0x0 0x10000>;
interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
clock-names = "i2c";
- clocks = <&platform_clk 1>;
+ clocks = <&clockgen 4 1>;
status = "disabled";
};
@@ -479,7 +455,7 @@
compatible = "fsl,ls1021a-lpuart";
reg = <0x0 0x2960000 0x0 0x1000>;
interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&platform_clk 1>;
+ clocks = <&clockgen 4 1>;
clock-names = "ipg";
status = "disabled";
};
@@ -488,7 +464,7 @@
compatible = "fsl,ls1021a-lpuart";
reg = <0x0 0x2970000 0x0 0x1000>;
interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&platform_clk 1>;
+ clocks = <&clockgen 4 1>;
clock-names = "ipg";
status = "disabled";
};
@@ -497,7 +473,7 @@
compatible = "fsl,ls1021a-lpuart";
reg = <0x0 0x2980000 0x0 0x1000>;
interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&platform_clk 1>;
+ clocks = <&clockgen 4 1>;
clock-names = "ipg";
status = "disabled";
};
@@ -506,7 +482,7 @@
compatible = "fsl,ls1021a-lpuart";
reg = <0x0 0x2990000 0x0 0x1000>;
interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&platform_clk 1>;
+ clocks = <&clockgen 4 1>;
clock-names = "ipg";
status = "disabled";
};
@@ -515,7 +491,7 @@
compatible = "fsl,ls1021a-lpuart";
reg = <0x0 0x29a0000 0x0 0x1000>;
interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&platform_clk 1>;
+ clocks = <&clockgen 4 1>;
clock-names = "ipg";
status = "disabled";
};
@@ -524,7 +500,7 @@
compatible = "fsl,imx21-wdt";
reg = <0x0 0x2ad0000 0x0 0x10000>;
interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&platform_clk 1>;
+ clocks = <&clockgen 4 1>;
clock-names = "wdog-en";
big-endian;
};
@@ -534,8 +510,8 @@
compatible = "fsl,vf610-sai";
reg = <0x0 0x2b50000 0x0 0x10000>;
interrupts = <GIC_SPI 132 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&platform_clk 1>, <&platform_clk 1>,
- <&platform_clk 1>, <&platform_clk 1>;
+ clocks = <&clockgen 4 1>, <&clockgen 4 1>,
+ <&clockgen 4 1>, <&clockgen 4 1>;
clock-names = "bus", "mclk1", "mclk2", "mclk3";
dma-names = "tx", "rx";
dmas = <&edma0 1 47>,
@@ -548,8 +524,8 @@
compatible = "fsl,vf610-sai";
reg = <0x0 0x2b60000 0x0 0x10000>;
interrupts = <GIC_SPI 133 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&platform_clk 1>, <&platform_clk 1>,
- <&platform_clk 1>, <&platform_clk 1>;
+ clocks = <&clockgen 4 1>, <&clockgen 4 1>,
+ <&clockgen 4 1>, <&clockgen 4 1>;
clock-names = "bus", "mclk1", "mclk2", "mclk3";
dma-names = "tx", "rx";
dmas = <&edma0 1 45>,
@@ -569,16 +545,16 @@
dma-channels = <32>;
big-endian;
clock-names = "dmamux0", "dmamux1";
- clocks = <&platform_clk 1>,
- <&platform_clk 1>;
+ clocks = <&clockgen 4 1>,
+ <&clockgen 4 1>;
};
dcu: dcu@2ce0000 {
compatible = "fsl,ls1021a-dcu";
reg = <0x0 0x2ce0000 0x0 0x10000>;
interrupts = <GIC_SPI 172 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&platform_clk 0>,
- <&platform_clk 0>;
+ clocks = <&clockgen 4 0>,
+ <&clockgen 4 0>;
clock-names = "dcu", "pix";
big-endian;
status = "disabled";
@@ -723,7 +699,7 @@
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x40 0x00010000 0x0 0x00010000 /* downstream I/O */
0x82000000 0x0 0x40000000 0x40 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */
- msi-parent = <&msi1>;
+ msi-parent = <&msi1>, <&msi2>;
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 7>;
interrupt-map = <0000 0 0 1 &gic GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>,
@@ -746,7 +722,7 @@
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x48 0x00010000 0x0 0x00010000 /* downstream I/O */
0x82000000 0x0 0x40000000 0x48 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */
- msi-parent = <&msi2>;
+ msi-parent = <&msi1>, <&msi2>;
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 7>;
interrupt-map = <0000 0 0 1 &gic GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>,
diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi
index 8c77c87660cd..cd6ad072e72c 100644
--- a/arch/arm/boot/dts/meson.dtsi
+++ b/arch/arm/boot/dts/meson.dtsi
@@ -45,6 +45,8 @@
* OTHER DEALINGS IN THE SOFTWARE.
*/
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
/include/ "skeleton.dtsi"
/ {
@@ -65,99 +67,172 @@
#interrupt-cells = <3>;
};
- timer@c1109940 {
- compatible = "amlogic,meson6-timer";
- reg = <0xc1109940 0x18>;
- interrupts = <0 10 1>;
- };
-
soc {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
ranges;
- wdt: watchdog@c1109900 {
- compatible = "amlogic,meson6-wdt";
- reg = <0xc1109900 0x8>;
- interrupts = <0 0 1>;
- };
+ cbus: cbus@c1100000 {
+ compatible = "simple-bus";
+ reg = <0xc1100000 0x200000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0xc1100000 0x200000>;
- uart_AO: serial@c81004c0 {
- compatible = "amlogic,meson-uart";
- reg = <0xc81004c0 0x18>;
- interrupts = <0 90 1>;
- clocks = <&clk81>;
- status = "disabled";
- };
+ hwrng: rng@8100 {
+ compatible = "amlogic,meson-rng";
+ reg = <0x8100 0x8>;
+ };
- uart_A: serial@c11084c0 {
- compatible = "amlogic,meson-uart";
- reg = <0xc11084c0 0x18>;
- interrupts = <0 26 1>;
- clocks = <&clk81>;
- status = "disabled";
- };
+ uart_A: serial@84c0 {
+ compatible = "amlogic,meson6-uart", "amlogic,meson-uart";
+ reg = <0x84c0 0x18>;
+ interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
+ status = "disabled";
+ };
- uart_B: serial@c11084dc {
- compatible = "amlogic,meson-uart";
- reg = <0xc11084dc 0x18>;
- interrupts = <0 75 1>;
- clocks = <&clk81>;
- status = "disabled";
- };
+ uart_B: serial@84dc {
+ compatible = "amlogic,meson6-uart", "amlogic,meson-uart";
+ reg = <0x84dc 0x18>;
+ interrupts = <GIC_SPI 75 IRQ_TYPE_EDGE_RISING>;
+ status = "disabled";
+ };
- uart_C: serial@c1108700 {
- compatible = "amlogic,meson-uart";
- reg = <0xc1108700 0x18>;
- interrupts = <0 93 1>;
- clocks = <&clk81>;
- status = "disabled";
- };
+ i2c_A: i2c@8500 {
+ compatible = "amlogic,meson6-i2c";
+ reg = <0x8500 0x20>;
+ interrupts = <GIC_SPI 21 IRQ_TYPE_EDGE_RISING>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
- i2c_AO: i2c@c8100500 {
- compatible = "amlogic,meson6-i2c";
- reg = <0xc8100500 0x20>;
- interrupts = <0 92 1>;
- clocks = <&clk81>;
- #address-cells = <1>;
- #size-cells = <0>;
- status = "disabled";
+ pwm_ab: pwm@8550 {
+ compatible = "amlogic,meson-pwm";
+ reg = <0x8550 0x10>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm_cd: pwm@8650 {
+ compatible = "amlogic,meson-pwm";
+ reg = <0x8650 0x10>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ saradc: adc@8680 {
+ compatible = "amlogic,meson-saradc";
+ reg = <0x8680 0x34>;
+ #io-channel-cells = <1>;
+ interrupts = <GIC_SPI 73 IRQ_TYPE_EDGE_RISING>;
+ status = "disabled";
+ };
+
+ uart_C: serial@8700 {
+ compatible = "amlogic,meson6-uart", "amlogic,meson-uart";
+ reg = <0x8700 0x18>;
+ interrupts = <GIC_SPI 93 IRQ_TYPE_EDGE_RISING>;
+ status = "disabled";
+ };
+
+ i2c_B: i2c@87c0 {
+ compatible = "amlogic,meson6-i2c";
+ reg = <0x87c0 0x20>;
+ interrupts = <GIC_SPI 128 IRQ_TYPE_EDGE_RISING>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ usb0_phy: phy@8800 {
+ compatible = "amlogic,meson-mx-usb2-phy";
+ #phy-cells = <0>;
+ reg = <0x8800 0x20>;
+ status = "disabled";
+ };
+
+ usb1_phy: phy@8820 {
+ compatible = "amlogic,meson-mx-usb2-phy";
+ #phy-cells = <0>;
+ reg = <0x8820 0x20>;
+ status = "disabled";
+ };
+
+ spifc: spi@8c80 {
+ compatible = "amlogic,meson6-spifc";
+ reg = <0x8c80 0x80>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ wdt: watchdog@9900 {
+ compatible = "amlogic,meson6-wdt";
+ reg = <0x9900 0x8>;
+ interrupts = <GIC_SPI 0 IRQ_TYPE_EDGE_RISING>;
+ };
+
+ timer@9940 {
+ compatible = "amlogic,meson6-timer";
+ reg = <0x9940 0x18>;
+ interrupts = <GIC_SPI 10 IRQ_TYPE_EDGE_RISING>;
+ };
};
- i2c_A: i2c@c1108500 {
- compatible = "amlogic,meson6-i2c";
- reg = <0xc1108500 0x20>;
- interrupts = <0 21 1>;
- clocks = <&clk81>;
+ aobus: aobus@c8100000 {
+ compatible = "simple-bus";
+ reg = <0xc8100000 0x100000>;
#address-cells = <1>;
- #size-cells = <0>;
- status = "disabled";
+ #size-cells = <1>;
+ ranges = <0x0 0xc8100000 0x100000>;
+
+ ir_receiver: ir-receiver@480 {
+ compatible= "amlogic,meson6-ir";
+ reg = <0x480 0x20>;
+ interrupts = <GIC_SPI 15 IRQ_TYPE_EDGE_RISING>;
+ status = "disabled";
+ };
+
+ uart_AO: serial@4c0 {
+ compatible = "amlogic,meson6-uart", "amlogic,meson-ao-uart", "amlogic,meson-uart";
+ reg = <0x4c0 0x18>;
+ interrupts = <GIC_SPI 90 IRQ_TYPE_EDGE_RISING>;
+ status = "disabled";
+ };
+
+ i2c_AO: i2c@500 {
+ compatible = "amlogic,meson6-i2c";
+ reg = <0x500 0x20>;
+ interrupts = <GIC_SPI 92 IRQ_TYPE_EDGE_RISING>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
};
- i2c_B: i2c@c11087c0 {
- compatible = "amlogic,meson6-i2c";
- reg = <0xc11087c0 0x20>;
- interrupts = <0 128 1>;
- clocks = <&clk81>;
+ usb0: usb@c9040000 {
+ compatible = "snps,dwc2";
#address-cells = <1>;
#size-cells = <0>;
+ reg = <0xc9040000 0x40000>;
+ interrupts = <GIC_SPI 30 IRQ_TYPE_EDGE_RISING>;
+ phys = <&usb0_phy>;
+ phy-names = "usb2-phy";
+ dr_mode = "host";
status = "disabled";
};
- ir_receiver: ir-receiver@c8100480 {
- compatible= "amlogic,meson6-ir";
- reg = <0xc8100480 0x20>;
- interrupts = <0 15 1>;
- status = "disabled";
- };
-
- spifc: spi@c1108c80 {
- compatible = "amlogic,meson6-spifc";
- reg = <0xc1108c80 0x80>;
+ usb1: usb@c90c0000 {
+ compatible = "snps,dwc2";
#address-cells = <1>;
#size-cells = <0>;
- clocks = <&clk81>;
+ reg = <0xc90c0000 0x40000>;
+ interrupts = <GIC_SPI 31 IRQ_TYPE_EDGE_RISING>;
+ phys = <&usb1_phy>;
+ phy-names = "usb2-phy";
+ dr_mode = "host";
status = "disabled";
};
@@ -165,11 +240,17 @@
compatible = "amlogic,meson6-dwmac", "snps,dwmac";
reg = <0xc9410000 0x10000
0xc1108108 0x4>;
- interrupts = <0 8 1>;
+ interrupts = <GIC_SPI 8 IRQ_TYPE_EDGE_RISING>;
interrupt-names = "macirq";
- clocks = <&clk81>;
- clock-names = "stmmaceth";
status = "disabled";
};
+
+ ahb_sram: sram@d9000000 {
+ compatible = "mmio-sram";
+ reg = <0xd9000000 0x20000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0xd9000000 0x20000>;
+ };
};
}; /* end of / */
diff --git a/arch/arm/boot/dts/meson6-atv1200.dts b/arch/arm/boot/dts/meson6-atv1200.dts
index 1237faa63ce6..9444b0d9628f 100644
--- a/arch/arm/boot/dts/meson6-atv1200.dts
+++ b/arch/arm/boot/dts/meson6-atv1200.dts
@@ -46,7 +46,7 @@
*/
/dts-v1/;
-/include/ "meson6.dtsi"
+#include "meson6.dtsi"
/ {
model = "Geniatech ATV1200";
diff --git a/arch/arm/boot/dts/meson6.dtsi b/arch/arm/boot/dts/meson6.dtsi
index 8b33be15af94..ef281d290052 100644
--- a/arch/arm/boot/dts/meson6.dtsi
+++ b/arch/arm/boot/dts/meson6.dtsi
@@ -45,14 +45,12 @@
* OTHER DEALINGS IN THE SOFTWARE.
*/
-/include/ "meson.dtsi"
+#include "meson.dtsi"
/ {
model = "Amlogic Meson6 SoC";
compatible = "amlogic,meson6";
- interrupt-parent = <&gic>;
-
cpus {
#address-cells = <1>;
#size-cells = <0>;
@@ -72,9 +70,37 @@
};
};
+ xtal: xtal-clk {
+ compatible = "fixed-clock";
+ clock-frequency = <24000000>;
+ clock-output-names = "xtal";
+ #clock-cells = <0>;
+ };
+
clk81: clk@0 {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <200000000>;
};
}; /* end of / */
+
+
+&uart_AO {
+ clocks = <&xtal>, <&clk81>, <&clk81>;
+ clock-names = "xtal", "pclk", "baud";
+};
+
+&uart_A {
+ clocks = <&xtal>, <&clk81>, <&clk81>;
+ clock-names = "xtal", "pclk", "baud";
+};
+
+&uart_B {
+ clocks = <&xtal>, <&clk81>, <&clk81>;
+ clock-names = "xtal", "pclk", "baud";
+};
+
+&uart_C {
+ clocks = <&xtal>, <&clk81>, <&clk81>;
+ clock-names = "xtal", "pclk", "baud";
+};
diff --git a/arch/arm/boot/dts/meson8.dtsi b/arch/arm/boot/dts/meson8.dtsi
index ebc763eab195..b98d44fde6b6 100644
--- a/arch/arm/boot/dts/meson8.dtsi
+++ b/arch/arm/boot/dts/meson8.dtsi
@@ -43,15 +43,14 @@
* OTHER DEALINGS IN THE SOFTWARE.
*/
+#include <dt-bindings/clock/meson8b-clkc.h>
#include <dt-bindings/gpio/meson8-gpio.h>
-/include/ "meson.dtsi"
+#include "meson.dtsi"
/ {
model = "Amlogic Meson8 SoC";
compatible = "amlogic,meson8";
- interrupt-parent = <&gic>;
-
cpus {
#address-cells = <1>;
#size-cells = <0>;
@@ -85,34 +84,68 @@
};
};
- clk81: clk@0 {
- #clock-cells = <0>;
- compatible = "fixed-clock";
- clock-frequency = <141666666>;
+ reserved-memory {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ /* 2 MiB reserved for Hardware ROM Firmware? */
+ hwrom@0 {
+ reg = <0x0 0x200000>;
+ no-map;
+ };
+
+ /*
+ * 1 MiB reserved for the "ARM Power Firmware": this is ARM
+ * code which is responsible for system suspend. It loads a
+ * piece of ARC code ("arc_power" in the vendor u-boot tree)
+ * into SRAM, executes that and shuts down the (last) ARM core.
+ * The arc_power firmware then checks various wakeup sources
+ * (IR remote receiver, HDMI CEC, WIFI and Bluetooth wakeup or
+ * simply the power key) and re-starts the ARM core once it
+ * detects a wakeup request.
+ */
+ power-firmware@4f00000 {
+ reg = <0x4f00000 0x100000>;
+ no-map;
+ };
};
- pinctrl_cbus: pinctrl@c1109880 {
- compatible = "amlogic,meson8-cbus-pinctrl";
- reg = <0xc1109880 0x10>;
+ scu@c4300000 {
+ compatible = "arm,cortex-a9-scu";
+ reg = <0xc4300000 0x100>;
+ };
+}; /* end of / */
+
+&aobus {
+ pinctrl_aobus: pinctrl@84 {
+ compatible = "amlogic,meson8-aobus-pinctrl";
+ reg = <0x84 0xc>;
#address-cells = <1>;
#size-cells = <1>;
ranges;
- gpio: banks@c11080b0 {
- reg = <0xc11080b0 0x28>,
- <0xc11080e8 0x18>,
- <0xc1108120 0x18>,
- <0xc1108030 0x30>;
- reg-names = "mux", "pull", "pull-enable", "gpio";
+ gpio_ao: ao-bank@14 {
+ reg = <0x14 0x4>,
+ <0x2c 0x4>,
+ <0x24 0x8>;
+ reg-names = "mux", "pull", "gpio";
gpio-controller;
#gpio-cells = <2>;
- gpio-ranges = <&pinctrl_cbus 0 0 120>;
+ gpio-ranges = <&pinctrl_aobus 0 120 16>;
};
- spi_nor_pins: nor {
+ uart_ao_a_pins: uart_ao_a {
mux {
- groups = "nor_d", "nor_q", "nor_c", "nor_cs";
- function = "nor";
+ groups = "uart_tx_ao_a", "uart_rx_ao_a";
+ function = "uart_ao";
+ };
+ };
+
+ i2c_ao_pins: i2c_mst_ao {
+ mux {
+ groups = "i2c_mst_sck_ao", "i2c_mst_sda_ao";
+ function = "i2c_mst_ao";
};
};
@@ -123,47 +156,184 @@
};
};
- eth_pins: ethernet {
+ pwm_f_ao_pins: pwm-f-ao {
mux {
- groups = "eth_tx_clk_50m", "eth_tx_en",
- "eth_txd1", "eth_txd0",
- "eth_rx_clk_in", "eth_rx_dv",
- "eth_rxd1", "eth_rxd0", "eth_mdio",
- "eth_mdc";
- function = "ethernet";
+ groups = "pwm_f_ao";
+ function = "pwm_f_ao";
};
};
};
+};
- pinctrl_aobus: pinctrl@c8100084 {
- compatible = "amlogic,meson8-aobus-pinctrl";
- reg = <0xc8100084 0xc>;
+&cbus {
+ clkc: clock-controller@4000 {
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ compatible = "amlogic,meson8-clkc";
+ reg = <0x8000 0x4>, <0x4000 0x460>;
+ };
+
+ pwm_ef: pwm@86c0 {
+ compatible = "amlogic,meson8-pwm", "amlogic,meson8b-pwm";
+ reg = <0x86c0 0x10>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pinctrl_cbus: pinctrl@9880 {
+ compatible = "amlogic,meson8-cbus-pinctrl";
+ reg = <0x9880 0x10>;
#address-cells = <1>;
#size-cells = <1>;
ranges;
- gpio_ao: ao-bank@c1108030 {
- reg = <0xc8100014 0x4>,
- <0xc810002c 0x4>,
- <0xc8100024 0x8>;
- reg-names = "mux", "pull", "gpio";
+ gpio: banks@80b0 {
+ reg = <0x80b0 0x28>,
+ <0x80e8 0x18>,
+ <0x8120 0x18>,
+ <0x8030 0x30>;
+ reg-names = "mux", "pull", "pull-enable", "gpio";
gpio-controller;
#gpio-cells = <2>;
- gpio-ranges = <&pinctrl_aobus 0 120 16>;
+ gpio-ranges = <&pinctrl_cbus 0 0 120>;
};
- uart_ao_a_pins: uart_ao_a {
+ sd_a_pins: sd-a {
mux {
- groups = "uart_tx_ao_a", "uart_rx_ao_a";
- function = "uart_ao";
+ groups = "sd_d0_a", "sd_d1_a", "sd_d2_a",
+ "sd_d3_a", "sd_clk_a", "sd_cmd_a";
+ function = "sd_a";
};
};
- i2c_ao_pins: i2c_mst_ao {
+ sd_b_pins: sd-b {
mux {
- groups = "i2c_mst_sck_ao", "i2c_mst_sda_ao";
- function = "i2c_mst_ao";
+ groups = "sd_d0_b", "sd_d1_b", "sd_d2_b",
+ "sd_d3_b", "sd_clk_b", "sd_cmd_b";
+ function = "sd_b";
+ };
+ };
+
+ sd_c_pins: sd-c {
+ mux {
+ groups = "sd_d0_c", "sd_d1_c", "sd_d2_c",
+ "sd_d3_c", "sd_clk_c", "sd_cmd_c";
+ function = "sd_c";
+ };
+ };
+
+ spi_nor_pins: nor {
+ mux {
+ groups = "nor_d", "nor_q", "nor_c", "nor_cs";
+ function = "nor";
+ };
+ };
+
+ eth_pins: ethernet {
+ mux {
+ groups = "eth_tx_clk_50m", "eth_tx_en",
+ "eth_txd1", "eth_txd0",
+ "eth_rx_clk_in", "eth_rx_dv",
+ "eth_rxd1", "eth_rxd0", "eth_mdio",
+ "eth_mdc";
+ function = "ethernet";
+ };
+ };
+
+ pwm_e_pins: pwm-e {
+ mux {
+ groups = "pwm_e";
+ function = "pwm_e";
};
};
};
-}; /* end of / */
+};
+
+&ethmac {
+ clocks = <&clkc CLKID_ETH>;
+ clock-names = "stmmaceth";
+};
+
+&hwrng {
+ compatible = "amlogic,meson8-rng", "amlogic,meson-rng";
+ clocks = <&clkc CLKID_RNG0>;
+ clock-names = "core";
+};
+
+&i2c_AO {
+ clocks = <&clkc CLKID_CLK81>;
+};
+
+&i2c_A {
+ clocks = <&clkc CLKID_CLK81>;
+};
+
+&i2c_B {
+ clocks = <&clkc CLKID_CLK81>;
+};
+
+&L2 {
+ arm,data-latency = <3 3 3>;
+ arm,tag-latency = <2 2 2>;
+ arm,filter-ranges = <0x100000 0xc0000000>;
+};
+
+&pwm_ab {
+ compatible = "amlogic,meson8-pwm", "amlogic,meson8b-pwm";
+};
+
+&pwm_cd {
+ compatible = "amlogic,meson8-pwm", "amlogic,meson8b-pwm";
+};
+
+&saradc {
+ compatible = "amlogic,meson8-saradc", "amlogic,meson-saradc";
+ clocks = <&clkc CLKID_XTAL>,
+ <&clkc CLKID_SAR_ADC>,
+ <&clkc CLKID_SANA>;
+ clock-names = "clkin", "core", "sana";
+};
+
+&spifc {
+ clocks = <&clkc CLKID_CLK81>;
+};
+
+&uart_AO {
+ clocks = <&clkc CLKID_CLK81>;
+};
+
+&uart_A {
+ clocks = <&clkc CLKID_CLK81>;
+};
+
+&uart_B {
+ clocks = <&clkc CLKID_CLK81>;
+};
+
+&uart_C {
+ clocks = <&clkc CLKID_CLK81>;
+};
+
+&usb0 {
+ compatible = "amlogic,meson8-usb", "snps,dwc2";
+ clocks = <&clkc CLKID_USB0_DDR_BRIDGE>;
+ clock-names = "otg";
+};
+
+&usb1 {
+ compatible = "amlogic,meson8-usb", "snps,dwc2";
+ clocks = <&clkc CLKID_USB1_DDR_BRIDGE>;
+ clock-names = "otg";
+};
+
+&usb0_phy {
+ compatible = "amlogic,meson8-usb2-phy", "amlogic,meson-mx-usb2-phy";
+ clocks = <&clkc CLKID_USB>, <&clkc CLKID_USB0>;
+ clock-names = "usb_general", "usb";
+};
+
+&usb1_phy {
+ compatible = "amlogic,meson8-usb2-phy", "amlogic,meson-mx-usb2-phy";
+ clocks = <&clkc CLKID_USB>, <&clkc CLKID_USB1>;
+ clock-names = "usb_general", "usb";
+};
diff --git a/arch/arm/boot/dts/meson8b.dtsi b/arch/arm/boot/dts/meson8b.dtsi
index 828aa49c678c..bc278da7df0d 100644
--- a/arch/arm/boot/dts/meson8b.dtsi
+++ b/arch/arm/boot/dts/meson8b.dtsi
@@ -47,11 +47,9 @@
#include <dt-bindings/clock/meson8b-clkc.h>
#include <dt-bindings/gpio/meson8b-gpio.h>
#include <dt-bindings/reset/amlogic,meson8b-reset.h>
-#include "skeleton.dtsi"
+#include "meson.dtsi"
/ {
- interrupt-parent = <&gic>;
-
cpus {
#address-cells = <1>;
#size-cells = <0>;
@@ -85,146 +83,155 @@
};
};
- soc {
- compatible = "simple-bus";
+ scu@c4300000 {
+ compatible = "arm,cortex-a5-scu";
+ reg = <0xc4300000 0x100>;
+ };
+}; /* end of / */
+
+&aobus {
+ pinctrl_aobus: pinctrl@84 {
+ compatible = "amlogic,meson8b-aobus-pinctrl";
+ reg = <0x84 0xc>;
#address-cells = <1>;
#size-cells = <1>;
ranges;
- L2: l2-cache-controller@c4200000 {
- compatible = "arm,pl310-cache";
- reg = <0xc4200000 0x1000>;
- cache-unified;
- cache-level = <2>;
- };
-
- gic: interrupt-controller@c4301000 {
- compatible = "arm,cortex-a9-gic";
- reg = <0xc4301000 0x1000>,
- <0xc4300100 0x0100>;
- interrupt-controller;
- #interrupt-cells = <3>;
- };
-
- reset: reset-controller@c1104404 {
- compatible = "amlogic,meson8b-reset";
- reg = <0xc1104404 0x20>;
- #reset-cells = <1>;
- };
-
- wdt: watchdog@c1109900 {
- compatible = "amlogic,meson8b-wdt";
- reg = <0xc1109900 0x8>;
- interrupts = <0 0 1>;
- };
-
- timer@c1109940 {
- compatible = "amlogic,meson6-timer";
- reg = <0xc1109940 0x18>;
- interrupts = <0 10 1>;
- };
-
- uart_AO: serial@c81004c0 {
- compatible = "amlogic,meson-uart";
- reg = <0xc81004c0 0x18>;
- interrupts = <0 90 1>;
- clocks = <&clkc CLKID_CLK81>;
- status = "disabled";
- };
-
- uart_A: serial@c11084c0 {
- compatible = "amlogic,meson-uart";
- reg = <0xc11084c0 0x18>;
- interrupts = <0 26 1>;
- clocks = <&clkc CLKID_CLK81>;
- status = "disabled";
- };
-
- uart_B: serial@c11084dc {
- compatible = "amlogic,meson-uart";
- reg = <0xc11084dc 0x18>;
- interrupts = <0 75 1>;
- clocks = <&clkc CLKID_CLK81>;
- status = "disabled";
- };
-
- uart_C: serial@c1108700 {
- compatible = "amlogic,meson-uart";
- reg = <0xc1108700 0x18>;
- interrupts = <0 93 1>;
- clocks = <&clkc CLKID_CLK81>;
- status = "disabled";
- };
-
- clkc: clock-controller@c1104000 {
- #clock-cells = <1>;
- compatible = "amlogic,meson8b-clkc";
- reg = <0xc1108000 0x4>, <0xc1104000 0x460>;
- };
-
- pwm_ab: pwm@8550 {
- compatible = "amlogic,meson8b-pwm";
- reg = <0xc1108550 0x10>;
- #pwm-cells = <3>;
- status = "disabled";
+ gpio_ao: ao-bank@14 {
+ reg = <0x14 0x4>,
+ <0x2c 0x4>,
+ <0x24 0x8>;
+ reg-names = "mux", "pull", "gpio";
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl_aobus 0 130 16>;
};
- pwm_cd: pwm@8650 {
- compatible = "amlogic,meson8b-pwm";
- reg = <0xc1108650 0x10>;
- #pwm-cells = <3>;
- status = "disabled";
+ uart_ao_a_pins: uart_ao_a {
+ mux {
+ groups = "uart_tx_ao_a", "uart_rx_ao_a";
+ function = "uart_ao";
+ };
};
+ };
+};
+
+&cbus {
+ clkc: clock-controller@4000 {
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ compatible = "amlogic,meson8b-clkc";
+ reg = <0x8000 0x4>, <0x4000 0x460>;
+ };
- pwm_ef: pwm@86c0 {
- compatible = "amlogic,meson8b-pwm";
- reg = <0xc11086c0 0x10>;
- #pwm-cells = <3>;
- status = "disabled";
- };
+ reset: reset-controller@4404 {
+ compatible = "amlogic,meson8b-reset";
+ reg = <0x4404 0x20>;
+ #reset-cells = <1>;
+ };
- pinctrl_cbus: pinctrl@c1109880 {
- compatible = "amlogic,meson8b-cbus-pinctrl";
- reg = <0xc1109880 0x10>;
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
-
- gpio: banks@c11080b0 {
- reg = <0xc11080b0 0x28>,
- <0xc11080e8 0x18>,
- <0xc1108120 0x18>,
- <0xc1108030 0x38>;
- reg-names = "mux", "pull", "pull-enable", "gpio";
- gpio-controller;
- #gpio-cells = <2>;
- gpio-ranges = <&pinctrl_cbus 0 0 130>;
- };
- };
+ pwm_ef: pwm@86c0 {
+ compatible = "amlogic,meson8b-pwm";
+ reg = <0x86c0 0x10>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
- pinctrl_aobus: pinctrl@c8100084 {
- compatible = "amlogic,meson8b-aobus-pinctrl";
- reg = <0xc8100084 0xc>;
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
-
- gpio_ao: ao-bank@c1108030 {
- reg = <0xc8100014 0x4>,
- <0xc810002c 0x4>,
- <0xc8100024 0x8>;
- reg-names = "mux", "pull", "gpio";
- gpio-controller;
- #gpio-cells = <2>;
- gpio-ranges = <&pinctrl_aobus 0 130 16>;
- };
+ pinctrl_cbus: pinctrl@9880 {
+ compatible = "amlogic,meson8b-cbus-pinctrl";
+ reg = <0x9880 0x10>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
- uart_ao_a_pins: uart_ao_a {
- mux {
- groups = "uart_tx_ao_a", "uart_rx_ao_a";
- function = "uart_ao";
- };
- };
+ gpio: banks@80b0 {
+ reg = <0x80b0 0x28>,
+ <0x80e8 0x18>,
+ <0x8120 0x18>,
+ <0x8030 0x38>;
+ reg-names = "mux", "pull", "pull-enable", "gpio";
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl_cbus 0 0 130>;
};
};
-}; /* end of / */
+};
+
+&ethmac {
+ clocks = <&clkc CLKID_ETH>;
+ clock-names = "stmmaceth";
+};
+
+&hwrng {
+ compatible = "amlogic,meson8b-rng", "amlogic,meson-rng";
+ clocks = <&clkc CLKID_RNG0>;
+ clock-names = "core";
+};
+
+&L2 {
+ arm,data-latency = <3 3 3>;
+ arm,tag-latency = <2 2 2>;
+ arm,filter-ranges = <0x100000 0xc0000000>;
+};
+
+&pwm_ab {
+ compatible = "amlogic,meson8b-pwm";
+};
+
+&pwm_cd {
+ compatible = "amlogic,meson8b-pwm";
+};
+
+&saradc {
+ compatible = "amlogic,meson8b-saradc", "amlogic,meson-saradc";
+ clocks = <&clkc CLKID_XTAL>,
+ <&clkc CLKID_SAR_ADC>,
+ <&clkc CLKID_SANA>;
+ clock-names = "clkin", "core", "sana";
+};
+
+&uart_AO {
+ clocks = <&clkc CLKID_CLK81>;
+};
+
+&uart_A {
+ clocks = <&clkc CLKID_CLK81>;
+};
+
+&uart_B {
+ clocks = <&clkc CLKID_CLK81>;
+};
+
+&uart_C {
+ clocks = <&clkc CLKID_CLK81>;
+};
+
+&usb0 {
+ compatible = "amlogic,meson8b-usb", "snps,dwc2";
+ clocks = <&clkc CLKID_USB0_DDR_BRIDGE>;
+ clock-names = "otg";
+};
+
+&usb1 {
+ compatible = "amlogic,meson8b-usb", "snps,dwc2";
+ clocks = <&clkc CLKID_USB1_DDR_BRIDGE>;
+ clock-names = "otg";
+};
+
+&usb0_phy {
+ compatible = "amlogic,meson8b-usb2-phy", "amlogic,meson-mx-usb2-phy";
+ clocks = <&clkc CLKID_USB>, <&clkc CLKID_USB0>;
+ clock-names = "usb_general", "usb";
+ resets = <&reset RESET_USB_OTG>;
+};
+
+&usb1_phy {
+ compatible = "amlogic,meson8b-usb2-phy", "amlogic,meson-mx-usb2-phy";
+ clocks = <&clkc CLKID_USB>, <&clkc CLKID_USB1>;
+ clock-names = "usb_general", "usb";
+ resets = <&reset RESET_USB_OTG>;
+};
+
+&wdt {
+ compatible = "amlogic,meson8b-wdt";
+};
diff --git a/arch/arm/boot/dts/motorola-cpcap-mapphone.dtsi b/arch/arm/boot/dts/motorola-cpcap-mapphone.dtsi
index f5aeb3959afd..4d61e5b1334a 100644
--- a/arch/arm/boot/dts/motorola-cpcap-mapphone.dtsi
+++ b/arch/arm/boot/dts/motorola-cpcap-mapphone.dtsi
@@ -26,6 +26,22 @@
#io-channel-cells = <1>;
};
+ cpcap_battery: battery {
+ compatible = "motorola,cpcap-battery";
+ interrupts-extended = <
+ &cpcap 6 0 &cpcap 5 0 &cpcap 3 0
+ &cpcap 20 0 &cpcap 54 0
+ >;
+ interrupt-names =
+ "eol", "lowbph", "lowbpl",
+ "chrgcurr1", "battdetb";
+ io-channels = <&cpcap_adc 0 &cpcap_adc 1
+ &cpcap_adc 5 &cpcap_adc 6>;
+ io-channel-names = "battdetb", "battp",
+ "chg_isense", "batti";
+ power-supplies = <&cpcap_charger>;
+ };
+
cpcap_charger: charger {
compatible = "motorola,mapphone-cpcap-charger";
interrupts-extended = <
@@ -239,5 +255,6 @@
regulator-min-microvolt = <2775000>;
regulator-max-microvolt = <2775000>;
regulator-enable-ramp-delay = <1000>;
+ regulator-initial-mode = <0x00>; /* NORMAL */
};
};
diff --git a/arch/arm/boot/dts/moxart.dtsi b/arch/arm/boot/dts/moxart.dtsi
index e86f8c905ac5..da7b3237bfe9 100644
--- a/arch/arm/boot/dts/moxart.dtsi
+++ b/arch/arm/boot/dts/moxart.dtsi
@@ -58,10 +58,11 @@
};
timer: timer@98400000 {
- compatible = "moxa,moxart-timer";
+ compatible = "moxa,moxart-timer", "faraday,fttmr010";
reg = <0x98400000 0x42>;
interrupts = <19 IRQ_TYPE_EDGE_FALLING>;
clocks = <&clk_apb>;
+ clock-names = "PCLK";
};
gpio: gpio@98700000 {
@@ -86,9 +87,10 @@
};
watchdog: watchdog@98500000 {
- compatible = "moxa,moxart-watchdog";
+ compatible = "moxa,moxart-watchdog", "faraday,ftwdt010";
reg = <0x98500000 0x10>;
clocks = <&clk_apb>;
+ clock-names = "PCLK";
};
sdhci: sdhci@98e00000 {
diff --git a/arch/arm/boot/dts/mt2701-evb.dts b/arch/arm/boot/dts/mt2701-evb.dts
index a4837985b7a7..f48497354221 100644
--- a/arch/arm/boot/dts/mt2701-evb.dts
+++ b/arch/arm/boot/dts/mt2701-evb.dts
@@ -22,13 +22,95 @@
memory {
reg = <0 0x80000000 0 0x40000000>;
};
+
+ sound:sound {
+ compatible = "mediatek,mt2701-cs42448-machine";
+ mediatek,platform = <&afe>;
+ /* CS42448 Machine name */
+ audio-routing =
+ "Line Out Jack", "AOUT1L",
+ "Line Out Jack", "AOUT1R",
+ "Line Out Jack", "AOUT2L",
+ "Line Out Jack", "AOUT2R",
+ "Line Out Jack", "AOUT3L",
+ "Line Out Jack", "AOUT3R",
+ "Line Out Jack", "AOUT4L",
+ "Line Out Jack", "AOUT4R",
+ "AIN1L", "AMIC",
+ "AIN1R", "AMIC",
+ "AIN2L", "Tuner In",
+ "AIN2R", "Tuner In",
+ "AIN3L", "Satellite Tuner In",
+ "AIN3R", "Satellite Tuner In",
+ "AIN3L", "AUX In",
+ "AIN3R", "AUX In";
+ mediatek,audio-codec = <&cs42448>;
+ mediatek,audio-codec-bt-mrg = <&bt_sco_codec>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&aud_pins_default>;
+ i2s1-in-sel-gpio1 = <&pio 53 0>;
+ i2s1-in-sel-gpio2 = <&pio 54 0>;
+ status = "okay";
+ };
+
+ bt_sco_codec:bt_sco_codec {
+ compatible = "linux,bt-sco";
+ };
};
&auxadc {
status = "okay";
};
+&i2c0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_pins_a>;
+ status = "okay";
+};
+
+&i2c1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_pins_a>;
+ status = "okay";
+};
+
+&i2c2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c2_pins_a>;
+ status = "okay";
+ cs42448: cs42448@48 {
+ compatible = "cirrus,cs42448";
+ reg = <0x48>;
+ clocks = <&topckgen CLK_TOP_AUD_I2S1_MCLK>;
+ clock-names = "mclk";
+ };
+};
+
&pio {
+ i2c0_pins_a: i2c0@0 {
+ pins1 {
+ pinmux = <MT2701_PIN_75_SDA0__FUNC_SDA0>,
+ <MT2701_PIN_76_SCL0__FUNC_SCL0>;
+ bias-disable;
+ };
+ };
+
+ i2c1_pins_a: i2c1@0 {
+ pins1 {
+ pinmux = <MT2701_PIN_57_SDA1__FUNC_SDA1>,
+ <MT2701_PIN_58_SCL1__FUNC_SCL1>;
+ bias-disable;
+ };
+ };
+
+ i2c2_pins_a: i2c2@0 {
+ pins1 {
+ pinmux = <MT2701_PIN_77_SDA2__FUNC_SDA2>,
+ <MT2701_PIN_78_SCL2__FUNC_SCL2>;
+ bias-disable;
+ };
+ };
+
spi_pins_a: spi0@0 {
pins_spi {
pinmux = <MT2701_PIN_53_SPI0_CSN__FUNC_SPI0_CS>,
@@ -39,6 +121,31 @@
};
};
+ aud_pins_default: audiodefault {
+ pins_cmd_dat {
+ pinmux = <MT2701_PIN_49_I2S0_DATA__FUNC_I2S0_DATA>,
+ <MT2701_PIN_72_I2S0_DATA_IN__FUNC_I2S0_DATA_IN>,
+ <MT2701_PIN_73_I2S0_LRCK__FUNC_I2S0_LRCK>,
+ <MT2701_PIN_74_I2S0_BCK__FUNC_I2S0_BCK>,
+ <MT2701_PIN_126_I2S0_MCLK__FUNC_I2S0_MCLK>,
+ <MT2701_PIN_33_I2S1_DATA__FUNC_I2S1_DATA>,
+ <MT2701_PIN_34_I2S1_DATA_IN__FUNC_I2S1_DATA_IN>,
+ <MT2701_PIN_35_I2S1_BCK__FUNC_I2S1_BCK>,
+ <MT2701_PIN_36_I2S1_LRCK__FUNC_I2S1_LRCK>,
+ <MT2701_PIN_37_I2S1_MCLK__FUNC_I2S1_MCLK>,
+ <MT2701_PIN_203_PWM0__FUNC_I2S2_DATA>,
+ <MT2701_PIN_204_PWM1__FUNC_I2S3_DATA>,
+ <MT2701_PIN_53_SPI0_CSN__FUNC_GPIO53>,
+ <MT2701_PIN_54_SPI0_CK__FUNC_GPIO54>,
+ <MT2701_PIN_18_PCM_CLK__FUNC_MRG_CLK>,
+ <MT2701_PIN_19_PCM_SYNC__FUNC_MRG_SYNC>,
+ <MT2701_PIN_20_PCM_RX__FUNC_MRG_TX>,
+ <MT2701_PIN_21_PCM_TX__FUNC_MRG_RX>;
+ drive-strength = <MTK_DRIVE_12mA>;
+ bias-pull-down;
+ };
+ };
+
spi_pins_b: spi1@0 {
pins_spi {
pinmux = <MT2701_PIN_7_SPI1_CSN__FUNC_SPI1_CS>,
@@ -78,6 +185,31 @@
status = "disabled";
};
+&nor_flash {
+ pinctrl-names = "default";
+ pinctrl-0 = <&nor_pins_default>;
+ status = "okay";
+ flash@0 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ };
+};
+
+&pio {
+ nor_pins_default: nor {
+ pins1 {
+ pinmux = <MT2701_PIN_240_EXT_XCS__FUNC_EXT_XCS>,
+ <MT2701_PIN_241_EXT_SCK__FUNC_EXT_SCK>,
+ <MT2701_PIN_239_EXT_SDIO0__FUNC_EXT_SDIO0>,
+ <MT2701_PIN_238_EXT_SDIO1__FUNC_EXT_SDIO1>,
+ <MT2701_PIN_237_EXT_SDIO2__FUNC_EXT_SDIO2>,
+ <MT2701_PIN_236_EXT_SDIO3__FUNC_EXT_SDIO3>;
+ drive-strength = <MTK_DRIVE_4mA>;
+ bias-pull-up;
+ };
+ };
+};
+
&uart0 {
status = "okay";
};
diff --git a/arch/arm/boot/dts/mt2701.dtsi b/arch/arm/boot/dts/mt2701.dtsi
index 803721050116..afe12e5b51f9 100644
--- a/arch/arm/boot/dts/mt2701.dtsi
+++ b/arch/arm/boot/dts/mt2701.dtsi
@@ -13,16 +13,18 @@
*/
#include <dt-bindings/clock/mt2701-clk.h>
+#include <dt-bindings/phy/phy.h>
#include <dt-bindings/power/mt2701-power.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/memory/mt2701-larb-port.h>
#include <dt-bindings/reset/mt2701-resets.h>
#include "skeleton64.dtsi"
#include "mt2701-pinfunc.h"
/ {
compatible = "mediatek,mt2701";
- interrupt-parent = <&sysirq>;
+ interrupt-parent = <&cirq>;
cpus {
#address-cells = <1>;
@@ -210,6 +212,16 @@
reg = <0 0x10200100 0 0x1c>;
};
+ cirq: interrupt-controller@10204000 {
+ compatible = "mediatek,mt2701-cirq",
+ "mediatek,mtk-cirq";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ interrupt-parent = <&sysirq>;
+ reg = <0 0x10204000 0 0x400>;
+ mediatek,ext-irq-range = <32 200>;
+ };
+
iommu: mmsys_iommu@10205000 {
compatible = "mediatek,mt2701-m4u";
reg = <0 0x10205000 0 0x1000>;
@@ -286,6 +298,48 @@
status = "disabled";
};
+ i2c0: i2c@11007000 {
+ compatible = "mediatek,mt2701-i2c",
+ "mediatek,mt6577-i2c";
+ reg = <0 0x11007000 0 0x70>,
+ <0 0x11000200 0 0x80>;
+ interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_LOW>;
+ clock-div = <16>;
+ clocks = <&pericfg CLK_PERI_I2C0>, <&pericfg CLK_PERI_AP_DMA>;
+ clock-names = "main", "dma";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ i2c1: i2c@11008000 {
+ compatible = "mediatek,mt2701-i2c",
+ "mediatek,mt6577-i2c";
+ reg = <0 0x11008000 0 0x70>,
+ <0 0x11000280 0 0x80>;
+ interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_LOW>;
+ clock-div = <16>;
+ clocks = <&pericfg CLK_PERI_I2C1>, <&pericfg CLK_PERI_AP_DMA>;
+ clock-names = "main", "dma";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ i2c2: i2c@11009000 {
+ compatible = "mediatek,mt2701-i2c",
+ "mediatek,mt6577-i2c";
+ reg = <0 0x11009000 0 0x70>,
+ <0 0x11000300 0 0x80>;
+ interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_LOW>;
+ clock-div = <16>;
+ clocks = <&pericfg CLK_PERI_I2C2>, <&pericfg CLK_PERI_AP_DMA>;
+ clock-names = "main", "dma";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
spi0: spi@1100a000 {
compatible = "mediatek,mt2701-spi";
#address-cells = <1>;
@@ -334,6 +388,18 @@
status = "disabled";
};
+ nor_flash: spi@11014000 {
+ compatible = "mediatek,mt2701-nor",
+ "mediatek,mt8173-nor";
+ reg = <0 0x11014000 0 0xe0>;
+ clocks = <&pericfg CLK_PERI_FLASH>,
+ <&topckgen CLK_TOP_FLASH_SEL>;
+ clock-names = "spi", "sf";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
spi1: spi@11016000 {
compatible = "mediatek,mt2701-spi";
#address-cells = <1>;
@@ -360,6 +426,104 @@
status = "disabled";
};
+ afe: audio-controller@11220000 {
+ compatible = "mediatek,mt2701-audio";
+ reg = <0 0x11220000 0 0x2000>,
+ <0 0x112a0000 0 0x20000>;
+ interrupts = <GIC_SPI 132 IRQ_TYPE_LEVEL_LOW>;
+ power-domains = <&scpsys MT2701_POWER_DOMAIN_IFR_MSC>;
+
+ clocks = <&infracfg CLK_INFRA_AUDIO>,
+ <&topckgen CLK_TOP_AUD_MUX1_SEL>,
+ <&topckgen CLK_TOP_AUD_MUX2_SEL>,
+ <&topckgen CLK_TOP_AUD_MUX1_DIV>,
+ <&topckgen CLK_TOP_AUD_MUX2_DIV>,
+ <&topckgen CLK_TOP_AUD_48K_TIMING>,
+ <&topckgen CLK_TOP_AUD_44K_TIMING>,
+ <&topckgen CLK_TOP_AUDPLL_MUX_SEL>,
+ <&topckgen CLK_TOP_APLL_SEL>,
+ <&topckgen CLK_TOP_AUD1PLL_98M>,
+ <&topckgen CLK_TOP_AUD2PLL_90M>,
+ <&topckgen CLK_TOP_HADDS2PLL_98M>,
+ <&topckgen CLK_TOP_HADDS2PLL_294M>,
+ <&topckgen CLK_TOP_AUDPLL>,
+ <&topckgen CLK_TOP_AUDPLL_D4>,
+ <&topckgen CLK_TOP_AUDPLL_D8>,
+ <&topckgen CLK_TOP_AUDPLL_D16>,
+ <&topckgen CLK_TOP_AUDPLL_D24>,
+ <&topckgen CLK_TOP_AUDINTBUS_SEL>,
+ <&clk26m>,
+ <&topckgen CLK_TOP_SYSPLL1_D4>,
+ <&topckgen CLK_TOP_AUD_K1_SRC_SEL>,
+ <&topckgen CLK_TOP_AUD_K2_SRC_SEL>,
+ <&topckgen CLK_TOP_AUD_K3_SRC_SEL>,
+ <&topckgen CLK_TOP_AUD_K4_SRC_SEL>,
+ <&topckgen CLK_TOP_AUD_K5_SRC_SEL>,
+ <&topckgen CLK_TOP_AUD_K6_SRC_SEL>,
+ <&topckgen CLK_TOP_AUD_K1_SRC_DIV>,
+ <&topckgen CLK_TOP_AUD_K2_SRC_DIV>,
+ <&topckgen CLK_TOP_AUD_K3_SRC_DIV>,
+ <&topckgen CLK_TOP_AUD_K4_SRC_DIV>,
+ <&topckgen CLK_TOP_AUD_K5_SRC_DIV>,
+ <&topckgen CLK_TOP_AUD_K6_SRC_DIV>,
+ <&topckgen CLK_TOP_AUD_I2S1_MCLK>,
+ <&topckgen CLK_TOP_AUD_I2S2_MCLK>,
+ <&topckgen CLK_TOP_AUD_I2S3_MCLK>,
+ <&topckgen CLK_TOP_AUD_I2S4_MCLK>,
+ <&topckgen CLK_TOP_AUD_I2S5_MCLK>,
+ <&topckgen CLK_TOP_AUD_I2S6_MCLK>,
+ <&topckgen CLK_TOP_ASM_M_SEL>,
+ <&topckgen CLK_TOP_ASM_H_SEL>,
+ <&topckgen CLK_TOP_UNIVPLL2_D4>,
+ <&topckgen CLK_TOP_UNIVPLL2_D2>,
+ <&topckgen CLK_TOP_SYSPLL_D5>;
+
+ clock-names = "infra_sys_audio_clk",
+ "top_audio_mux1_sel",
+ "top_audio_mux2_sel",
+ "top_audio_mux1_div",
+ "top_audio_mux2_div",
+ "top_audio_48k_timing",
+ "top_audio_44k_timing",
+ "top_audpll_mux_sel",
+ "top_apll_sel",
+ "top_aud1_pll_98M",
+ "top_aud2_pll_90M",
+ "top_hadds2_pll_98M",
+ "top_hadds2_pll_294M",
+ "top_audpll",
+ "top_audpll_d4",
+ "top_audpll_d8",
+ "top_audpll_d16",
+ "top_audpll_d24",
+ "top_audintbus_sel",
+ "clk_26m",
+ "top_syspll1_d4",
+ "top_aud_k1_src_sel",
+ "top_aud_k2_src_sel",
+ "top_aud_k3_src_sel",
+ "top_aud_k4_src_sel",
+ "top_aud_k5_src_sel",
+ "top_aud_k6_src_sel",
+ "top_aud_k1_src_div",
+ "top_aud_k2_src_div",
+ "top_aud_k3_src_div",
+ "top_aud_k4_src_div",
+ "top_aud_k5_src_div",
+ "top_aud_k6_src_div",
+ "top_aud_i2s1_mclk",
+ "top_aud_i2s2_mclk",
+ "top_aud_i2s3_mclk",
+ "top_aud_i2s4_mclk",
+ "top_aud_i2s5_mclk",
+ "top_aud_i2s6_mclk",
+ "top_asm_m_sel",
+ "top_asm_h_sel",
+ "top_univpll2_d4",
+ "top_univpll2_d2",
+ "top_syspll_d5";
+ };
+
mmsys: syscon@14000000 {
compatible = "mediatek,mt2701-mmsys", "syscon";
reg = <0 0x14000000 0 0x1000>;
@@ -370,6 +534,7 @@
compatible = "mediatek,mt2701-smi-larb";
reg = <0 0x14010000 0 0x1000>;
mediatek,smi = <&smi_common>;
+ mediatek,larb-id = <0>;
clocks = <&mmsys CLK_MM_SMI_LARB0>,
<&mmsys CLK_MM_SMI_LARB0>;
clock-names = "apb", "smi";
@@ -386,12 +551,27 @@
compatible = "mediatek,mt2701-smi-larb";
reg = <0 0x15001000 0 0x1000>;
mediatek,smi = <&smi_common>;
+ mediatek,larb-id = <2>;
clocks = <&imgsys CLK_IMG_SMI_COMM>,
<&imgsys CLK_IMG_SMI_COMM>;
clock-names = "apb", "smi";
power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>;
};
+ jpegdec: jpegdec@15004000 {
+ compatible = "mediatek,mt2701-jpgdec";
+ reg = <0 0x15004000 0 0x1000>;
+ interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&imgsys CLK_IMG_JPGDEC_SMI>,
+ <&imgsys CLK_IMG_JPGDEC>;
+ clock-names = "jpgdec-smi",
+ "jpgdec";
+ power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>;
+ mediatek,larb = <&larb2>;
+ iommus = <&iommu MT2701_M4U_PORT_JPGDEC_WDMA>,
+ <&iommu MT2701_M4U_PORT_JPGDEC_BSDMA>;
+ };
+
vdecsys: syscon@16000000 {
compatible = "mediatek,mt2701-vdecsys", "syscon";
reg = <0 0x16000000 0 0x1000>;
@@ -402,6 +582,7 @@
compatible = "mediatek,mt2701-smi-larb";
reg = <0 0x16010000 0 0x1000>;
mediatek,smi = <&smi_common>;
+ mediatek,larb-id = <1>;
clocks = <&vdecsys CLK_VDEC_CKGEN>,
<&vdecsys CLK_VDEC_LARB>;
clock-names = "apb", "smi";
@@ -414,12 +595,114 @@
#clock-cells = <1>;
};
+ usb0: usb@1a1c0000 {
+ compatible = "mediatek,mt8173-xhci";
+ reg = <0 0x1a1c0000 0 0x1000>,
+ <0 0x1a1c4700 0 0x0100>;
+ reg-names = "mac", "ippc";
+ interrupts = <GIC_SPI 196 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&hifsys CLK_HIFSYS_USB0PHY>,
+ <&topckgen CLK_TOP_ETHIF_SEL>;
+ clock-names = "sys_ck", "ref_ck";
+ power-domains = <&scpsys MT2701_POWER_DOMAIN_HIF>;
+ phys = <&u2port0 PHY_TYPE_USB2>, <&u3port0 PHY_TYPE_USB3>;
+ status = "disabled";
+ };
+
+ u3phy0: usb-phy@1a1c4000 {
+ compatible = "mediatek,mt2701-u3phy";
+ reg = <0 0x1a1c4000 0 0x0700>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+ status = "disabled";
+
+ u2port0: usb-phy@1a1c4800 {
+ reg = <0 0x1a1c4800 0 0x0100>;
+ clocks = <&topckgen CLK_TOP_USB_PHY48M>;
+ clock-names = "ref";
+ #phy-cells = <1>;
+ status = "okay";
+ };
+
+ u3port0: usb-phy@1a1c4900 {
+ reg = <0 0x1a1c4900 0 0x0700>;
+ clocks = <&clk26m>;
+ clock-names = "ref";
+ #phy-cells = <1>;
+ status = "okay";
+ };
+ };
+
+ usb1: usb@1a240000 {
+ compatible = "mediatek,mt8173-xhci";
+ reg = <0 0x1a240000 0 0x1000>,
+ <0 0x1a244700 0 0x0100>;
+ reg-names = "mac", "ippc";
+ interrupts = <GIC_SPI 197 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&hifsys CLK_HIFSYS_USB1PHY>,
+ <&topckgen CLK_TOP_ETHIF_SEL>;
+ clock-names = "sys_ck", "ref_ck";
+ power-domains = <&scpsys MT2701_POWER_DOMAIN_HIF>;
+ phys = <&u2port1 PHY_TYPE_USB2>, <&u3port1 PHY_TYPE_USB3>;
+ status = "disabled";
+ };
+
+ u3phy1: usb-phy@1a244000 {
+ compatible = "mediatek,mt2701-u3phy";
+ reg = <0 0x1a244000 0 0x0700>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+ status = "disabled";
+
+ u2port1: usb-phy@1a244800 {
+ reg = <0 0x1a244800 0 0x0100>;
+ clocks = <&topckgen CLK_TOP_USB_PHY48M>;
+ clock-names = "ref";
+ #phy-cells = <1>;
+ status = "okay";
+ };
+
+ u3port1: usb-phy@1a244900 {
+ reg = <0 0x1a244900 0 0x0700>;
+ clocks = <&clk26m>;
+ clock-names = "ref";
+ #phy-cells = <1>;
+ status = "okay";
+ };
+ };
+
ethsys: syscon@1b000000 {
compatible = "mediatek,mt2701-ethsys", "syscon";
reg = <0 0x1b000000 0 0x1000>;
#clock-cells = <1>;
};
+ eth: ethernet@1b100000 {
+ compatible = "mediatek,mt2701-eth", "syscon";
+ reg = <0 0x1b100000 0 0x20000>;
+ interrupts = <GIC_SPI 200 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_SPI 199 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_SPI 198 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&topckgen CLK_TOP_ETHIF_SEL>,
+ <&ethsys CLK_ETHSYS_ESW>,
+ <&ethsys CLK_ETHSYS_GP1>,
+ <&ethsys CLK_ETHSYS_GP2>,
+ <&apmixedsys CLK_APMIXED_TRGPLL>;
+ clock-names = "ethif", "esw", "gp1", "gp2", "trgpll";
+ resets = <&ethsys MT2701_ETHSYS_FE_RST>,
+ <&ethsys MT2701_ETHSYS_GMAC_RST>,
+ <&ethsys MT2701_ETHSYS_PPE_RST>;
+ reset-names = "fe", "gmac", "ppe";
+ power-domains = <&scpsys MT2701_POWER_DOMAIN_ETH>;
+ mediatek,ethsys = <&ethsys>;
+ mediatek,pctl = <&syscfg_pctl_a>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
bdpsys: syscon@1c000000 {
compatible = "mediatek,mt2701-bdpsys", "syscon";
reg = <0 0x1c000000 0 0x1000>;
diff --git a/arch/arm/boot/dts/mt6323.dtsi b/arch/arm/boot/dts/mt6323.dtsi
new file mode 100644
index 000000000000..7c783d6c750e
--- /dev/null
+++ b/arch/arm/boot/dts/mt6323.dtsi
@@ -0,0 +1,241 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: John Crispin <john@phrozen.org>
+ * Sean Wang <sean.wang@mediatek.com>
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+&pwrap {
+ pmic: mt6323 {
+ compatible = "mediatek,mt6323";
+ interrupt-parent = <&pio>;
+ interrupts = <150 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ mt6323regulator: mt6323regulator{
+ compatible = "mediatek,mt6323-regulator";
+
+ mt6323_vproc_reg: buck_vproc{
+ regulator-name = "vproc";
+ regulator-min-microvolt = < 700000>;
+ regulator-max-microvolt = <1350000>;
+ regulator-ramp-delay = <12500>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ mt6323_vsys_reg: buck_vsys{
+ regulator-name = "vsys";
+ regulator-min-microvolt = <1400000>;
+ regulator-max-microvolt = <2987500>;
+ regulator-ramp-delay = <25000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ mt6323_vpa_reg: buck_vpa{
+ regulator-name = "vpa";
+ regulator-min-microvolt = < 500000>;
+ regulator-max-microvolt = <3650000>;
+ };
+
+ mt6323_vtcxo_reg: ldo_vtcxo{
+ regulator-name = "vtcxo";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-enable-ramp-delay = <90>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ mt6323_vcn28_reg: ldo_vcn28{
+ regulator-name = "vcn28";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-enable-ramp-delay = <185>;
+ };
+
+ mt6323_vcn33_bt_reg: ldo_vcn33_bt{
+ regulator-name = "vcn33_bt";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3600000>;
+ regulator-enable-ramp-delay = <185>;
+ };
+
+ mt6323_vcn33_wifi_reg: ldo_vcn33_wifi{
+ regulator-name = "vcn33_wifi";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3600000>;
+ regulator-enable-ramp-delay = <185>;
+ };
+
+ mt6323_va_reg: ldo_va{
+ regulator-name = "va";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-enable-ramp-delay = <216>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ mt6323_vcama_reg: ldo_vcama{
+ regulator-name = "vcama";
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-enable-ramp-delay = <216>;
+ };
+
+ mt6323_vio28_reg: ldo_vio28{
+ regulator-name = "vio28";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-enable-ramp-delay = <216>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ mt6323_vusb_reg: ldo_vusb{
+ regulator-name = "vusb";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-enable-ramp-delay = <216>;
+ regulator-boot-on;
+ };
+
+ mt6323_vmc_reg: ldo_vmc{
+ regulator-name = "vmc";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-enable-ramp-delay = <36>;
+ regulator-boot-on;
+ };
+
+ mt6323_vmch_reg: ldo_vmch{
+ regulator-name = "vmch";
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-enable-ramp-delay = <36>;
+ regulator-boot-on;
+ };
+
+ mt6323_vemc3v3_reg: ldo_vemc3v3{
+ regulator-name = "vemc3v3";
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-enable-ramp-delay = <36>;
+ regulator-boot-on;
+ };
+
+ mt6323_vgp1_reg: ldo_vgp1{
+ regulator-name = "vgp1";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-enable-ramp-delay = <216>;
+ };
+
+ mt6323_vgp2_reg: ldo_vgp2{
+ regulator-name = "vgp2";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-enable-ramp-delay = <216>;
+ };
+
+ mt6323_vgp3_reg: ldo_vgp3{
+ regulator-name = "vgp3";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-enable-ramp-delay = <216>;
+ };
+
+ mt6323_vcn18_reg: ldo_vcn18{
+ regulator-name = "vcn18";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-enable-ramp-delay = <216>;
+ };
+
+ mt6323_vsim1_reg: ldo_vsim1{
+ regulator-name = "vsim1";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-enable-ramp-delay = <216>;
+ };
+
+ mt6323_vsim2_reg: ldo_vsim2{
+ regulator-name = "vsim2";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-enable-ramp-delay = <216>;
+ };
+
+ mt6323_vrtc_reg: ldo_vrtc{
+ regulator-name = "vrtc";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ mt6323_vcamaf_reg: ldo_vcamaf{
+ regulator-name = "vcamaf";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-enable-ramp-delay = <216>;
+ };
+
+ mt6323_vibr_reg: ldo_vibr{
+ regulator-name = "vibr";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-enable-ramp-delay = <36>;
+ };
+
+ mt6323_vrf18_reg: ldo_vrf18{
+ regulator-name = "vrf18";
+ regulator-min-microvolt = <1825000>;
+ regulator-max-microvolt = <1825000>;
+ regulator-enable-ramp-delay = <187>;
+ };
+
+ mt6323_vm_reg: ldo_vm{
+ regulator-name = "vm";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-enable-ramp-delay = <216>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ mt6323_vio18_reg: ldo_vio18{
+ regulator-name = "vio18";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-enable-ramp-delay = <216>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ mt6323_vcamd_reg: ldo_vcamd{
+ regulator-name = "vcamd";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-enable-ramp-delay = <216>;
+ };
+
+ mt6323_vcamio_reg: ldo_vcamio{
+ regulator-name = "vcamio";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-enable-ramp-delay = <216>;
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/mt7623-evb.dts b/arch/arm/boot/dts/mt7623-evb.dts
deleted file mode 100644
index b60b41cad592..000000000000
--- a/arch/arm/boot/dts/mt7623-evb.dts
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Copyright (c) 2016 MediaTek Inc.
- * Author: John Crispin <john@phrozen.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-/dts-v1/;
-#include "mt7623.dtsi"
-
-/ {
- model = "MediaTek MT7623 evaluation board";
- compatible = "mediatek,mt7623-evb", "mediatek,mt7623";
-
- chosen {
- stdout-path = &uart2;
- };
-
- memory {
- reg = <0 0x80000000 0 0x40000000>;
- };
-};
-
-&uart2 {
- status = "okay";
-};
diff --git a/arch/arm/boot/dts/mt7623.dtsi b/arch/arm/boot/dts/mt7623.dtsi
index 3a9e9b6aea68..ec8a07415cb3 100644
--- a/arch/arm/boot/dts/mt7623.dtsi
+++ b/arch/arm/boot/dts/mt7623.dtsi
@@ -1,6 +1,7 @@
/*
- * Copyright (c) 2016 MediaTek Inc.
+ * Copyright (c) 2017 MediaTek Inc.
* Author: John Crispin <john@phrozen.org>
+ * Sean Wang <sean.wang@mediatek.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -14,36 +15,105 @@
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/mt2701-clk.h>
+#include <dt-bindings/pinctrl/mt7623-pinfunc.h>
+#include <dt-bindings/power/mt2701-power.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/phy/phy.h>
+#include <dt-bindings/reset/mt2701-resets.h>
+#include <dt-bindings/thermal/thermal.h>
#include "skeleton64.dtsi"
/ {
compatible = "mediatek,mt7623";
interrupt-parent = <&sysirq>;
+ cpu_opp_table: opp_table {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp-98000000 {
+ opp-hz = /bits/ 64 <98000000>;
+ opp-microvolt = <1050000>;
+ };
+
+ opp-198000000 {
+ opp-hz = /bits/ 64 <198000000>;
+ opp-microvolt = <1050000>;
+ };
+
+ opp-398000000 {
+ opp-hz = /bits/ 64 <398000000>;
+ opp-microvolt = <1050000>;
+ };
+
+ opp-598000000 {
+ opp-hz = /bits/ 64 <598000000>;
+ opp-microvolt = <1050000>;
+ };
+
+ opp-747500000 {
+ opp-hz = /bits/ 64 <747500000>;
+ opp-microvolt = <1050000>;
+ };
+
+ opp-1040000000 {
+ opp-hz = /bits/ 64 <1040000000>;
+ opp-microvolt = <1150000>;
+ };
+
+ opp-1196000000 {
+ opp-hz = /bits/ 64 <1196000000>;
+ opp-microvolt = <1200000>;
+ };
+
+ opp-1300000000 {
+ opp-hz = /bits/ 64 <1300000000>;
+ opp-microvolt = <1300000>;
+ };
+ };
+
cpus {
#address-cells = <1>;
#size-cells = <0>;
enable-method = "mediatek,mt6589-smp";
- cpu@0 {
+ cpu0: cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a7";
reg = <0x0>;
+ clocks = <&infracfg CLK_INFRA_CPUSEL>,
+ <&apmixedsys CLK_APMIXED_MAINPLL>;
+ clock-names = "cpu", "intermediate";
+ operating-points-v2 = <&cpu_opp_table>;
+ #cooling-cells = <2>;
+ cooling-min-level = <0>;
+ cooling-max-level = <7>;
+ clock-frequency = <1300000000>;
};
- cpu@1 {
+
+ cpu1: cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a7";
reg = <0x1>;
+ operating-points-v2 = <&cpu_opp_table>;
+ clock-frequency = <1300000000>;
};
- cpu@2 {
+
+ cpu2: cpu@2 {
device_type = "cpu";
compatible = "arm,cortex-a7";
reg = <0x2>;
+ operating-points-v2 = <&cpu_opp_table>;
+ clock-frequency = <1300000000>;
};
- cpu@3 {
+
+ cpu3: cpu@3 {
device_type = "cpu";
compatible = "arm,cortex-a7";
reg = <0x3>;
+ operating-points-v2 = <&cpu_opp_table>;
+ clock-frequency = <1300000000>;
};
};
@@ -53,16 +123,70 @@
#clock-cells = <0>;
};
- rtc_clk: dummy32k {
+ rtc32k: oscillator@1 {
compatible = "fixed-clock";
- clock-frequency = <32000>;
#clock-cells = <0>;
+ clock-frequency = <32000>;
+ clock-output-names = "rtc32k";
};
- uart_clk: dummy26m {
+ clk26m: oscillator@0 {
compatible = "fixed-clock";
- clock-frequency = <26000000>;
#clock-cells = <0>;
+ clock-frequency = <26000000>;
+ clock-output-names = "clk26m";
+ };
+
+ thermal-zones {
+ cpu_thermal: cpu_thermal {
+ polling-delay-passive = <1000>;
+ polling-delay = <1000>;
+
+ thermal-sensors = <&thermal 0>;
+
+ trips {
+ cpu_passive: cpu_passive {
+ temperature = <47000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ cpu_active: cpu_active {
+ temperature = <67000>;
+ hysteresis = <2000>;
+ type = "active";
+ };
+
+ cpu_hot: cpu_hot {
+ temperature = <87000>;
+ hysteresis = <2000>;
+ type = "hot";
+ };
+
+ cpu_crit {
+ temperature = <107000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&cpu_passive>;
+ cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+
+ map1 {
+ trip = <&cpu_active>;
+ cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+
+ map2 {
+ trip = <&cpu_hot>;
+ cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
+ };
};
timer {
@@ -76,6 +200,65 @@
arm,cpu-registers-not-fw-configured;
};
+ topckgen: syscon@10000000 {
+ compatible = "mediatek,mt7623-topckgen",
+ "mediatek,mt2701-topckgen",
+ "syscon";
+ reg = <0 0x10000000 0 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ infracfg: syscon@10001000 {
+ compatible = "mediatek,mt7623-infracfg",
+ "mediatek,mt2701-infracfg",
+ "syscon";
+ reg = <0 0x10001000 0 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+ pericfg: syscon@10003000 {
+ compatible = "mediatek,mt7623-pericfg",
+ "mediatek,mt2701-pericfg",
+ "syscon";
+ reg = <0 0x10003000 0 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+ pio: pinctrl@10005000 {
+ compatible = "mediatek,mt7623-pinctrl",
+ "mediatek,mt2701-pinctrl";
+ reg = <0 0x1000b000 0 0x1000>;
+ mediatek,pctl-regmap = <&syscfg_pctl_a>;
+ pins-are-numbered;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ interrupt-parent = <&gic>;
+ #interrupt-cells = <2>;
+ interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ syscfg_pctl_a: syscfg@10005000 {
+ compatible = "mediatek,mt7623-pctl-a-syscfg", "syscon";
+ reg = <0 0x10005000 0 0x1000>;
+ };
+
+ scpsys: scpsys@10006000 {
+ compatible = "mediatek,mt7623-scpsys",
+ "mediatek,mt2701-scpsys",
+ "syscon";
+ #power-domain-cells = <1>;
+ reg = <0 0x10006000 0 0x1000>;
+ infracfg = <&infracfg>;
+ clocks = <&topckgen CLK_TOP_MM_SEL>,
+ <&topckgen CLK_TOP_MFG_SEL>,
+ <&topckgen CLK_TOP_ETHIF_SEL>;
+ clock-names = "mm", "mfg", "ethif";
+ };
+
watchdog: watchdog@10007000 {
compatible = "mediatek,mt7623-wdt",
"mediatek,mt6589-wdt";
@@ -87,10 +270,32 @@
"mediatek,mt6577-timer";
reg = <0 0x10008000 0 0x80>;
interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_LOW>;
- clocks = <&system_clk>, <&rtc_clk>;
+ clocks = <&system_clk>, <&rtc32k>;
clock-names = "system-clk", "rtc-clk";
};
+ pwrap: pwrap@1000d000 {
+ compatible = "mediatek,mt7623-pwrap",
+ "mediatek,mt2701-pwrap";
+ reg = <0 0x1000d000 0 0x1000>;
+ reg-names = "pwrap";
+ interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
+ resets = <&infracfg MT2701_INFRA_PMIC_WRAP_RST>;
+ reset-names = "pwrap";
+ clocks = <&infracfg CLK_INFRA_PMICSPI>,
+ <&infracfg CLK_INFRA_PMICWRAP>;
+ clock-names = "spi", "wrap";
+ };
+
+ cir: cir@10013000 {
+ compatible = "mediatek,mt7623-cir";
+ reg = <0 0x10013000 0 0x1000>;
+ interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&infracfg CLK_INFRA_IRRX>;
+ clock-names = "clk";
+ status = "disabled";
+ };
+
sysirq: interrupt-controller@10200100 {
compatible = "mediatek,mt7623-sysirq",
"mediatek,mt6577-sysirq";
@@ -100,6 +305,32 @@
reg = <0 0x10200100 0 0x1c>;
};
+ efuse: efuse@10206000 {
+ compatible = "mediatek,mt7623-efuse",
+ "mediatek,mt8173-efuse";
+ reg = <0 0x10206000 0 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ thermal_calibration_data: calib@424 {
+ reg = <0x424 0xc>;
+ };
+ };
+
+ apmixedsys: syscon@10209000 {
+ compatible = "mediatek,mt7623-apmixedsys",
+ "mediatek,mt2701-apmixedsys",
+ "syscon";
+ reg = <0 0x10209000 0 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ rng: rng@1020f000 {
+ compatible = "mediatek,mt7623-rng";
+ reg = <0 0x1020f000 0 0x1000>;
+ clocks = <&infracfg CLK_INFRA_TRNG>;
+ clock-names = "rng";
+ };
+
gic: interrupt-controller@10211000 {
compatible = "arm,cortex-a7-gic";
interrupt-controller;
@@ -111,12 +342,23 @@
<0 0x10216000 0 0x2000>;
};
+ auxadc: adc@11001000 {
+ compatible = "mediatek,mt7623-auxadc",
+ "mediatek,mt2701-auxadc";
+ reg = <0 0x11001000 0 0x1000>;
+ clocks = <&pericfg CLK_PERI_AUXADC>;
+ clock-names = "main";
+ #io-channel-cells = <1>;
+ };
+
uart0: serial@11002000 {
compatible = "mediatek,mt7623-uart",
"mediatek,mt6577-uart";
reg = <0 0x11002000 0 0x400>;
interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_LOW>;
- clocks = <&uart_clk>;
+ clocks = <&pericfg CLK_PERI_UART0_SEL>,
+ <&pericfg CLK_PERI_UART0>;
+ clock-names = "baud", "bus";
status = "disabled";
};
@@ -125,7 +367,9 @@
"mediatek,mt6577-uart";
reg = <0 0x11003000 0 0x400>;
interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_LOW>;
- clocks = <&uart_clk>;
+ clocks = <&pericfg CLK_PERI_UART1_SEL>,
+ <&pericfg CLK_PERI_UART1>;
+ clock-names = "baud", "bus";
status = "disabled";
};
@@ -134,7 +378,9 @@
"mediatek,mt6577-uart";
reg = <0 0x11004000 0 0x400>;
interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_LOW>;
- clocks = <&uart_clk>;
+ clocks = <&pericfg CLK_PERI_UART2_SEL>,
+ <&pericfg CLK_PERI_UART2>;
+ clock-names = "baud", "bus";
status = "disabled";
};
@@ -143,7 +389,410 @@
"mediatek,mt6577-uart";
reg = <0 0x11005000 0 0x400>;
interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_LOW>;
- clocks = <&uart_clk>;
+ clocks = <&pericfg CLK_PERI_UART3_SEL>,
+ <&pericfg CLK_PERI_UART3>;
+ clock-names = "baud", "bus";
+ status = "disabled";
+ };
+
+ pwm: pwm@11006000 {
+ compatible = "mediatek,mt7623-pwm";
+ reg = <0 0x11006000 0 0x1000>;
+ #pwm-cells = <2>;
+ clocks = <&topckgen CLK_TOP_PWM_SEL>,
+ <&pericfg CLK_PERI_PWM>,
+ <&pericfg CLK_PERI_PWM1>,
+ <&pericfg CLK_PERI_PWM2>,
+ <&pericfg CLK_PERI_PWM3>,
+ <&pericfg CLK_PERI_PWM4>,
+ <&pericfg CLK_PERI_PWM5>;
+ clock-names = "top", "main", "pwm1", "pwm2",
+ "pwm3", "pwm4", "pwm5";
+ status = "disabled";
+ };
+
+ i2c0: i2c@11007000 {
+ compatible = "mediatek,mt7623-i2c",
+ "mediatek,mt6577-i2c";
+ reg = <0 0x11007000 0 0x70>,
+ <0 0x11000200 0 0x80>;
+ interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_LOW>;
+ clock-div = <16>;
+ clocks = <&pericfg CLK_PERI_I2C0>,
+ <&pericfg CLK_PERI_AP_DMA>;
+ clock-names = "main", "dma";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ i2c1: i2c@11008000 {
+ compatible = "mediatek,mt7623-i2c",
+ "mediatek,mt6577-i2c";
+ reg = <0 0x11008000 0 0x70>,
+ <0 0x11000280 0 0x80>;
+ interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_LOW>;
+ clock-div = <16>;
+ clocks = <&pericfg CLK_PERI_I2C1>,
+ <&pericfg CLK_PERI_AP_DMA>;
+ clock-names = "main", "dma";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ i2c2: i2c@11009000 {
+ compatible = "mediatek,mt7623-i2c",
+ "mediatek,mt6577-i2c";
+ reg = <0 0x11009000 0 0x70>,
+ <0 0x11000300 0 0x80>;
+ interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_LOW>;
+ clock-div = <16>;
+ clocks = <&pericfg CLK_PERI_I2C2>,
+ <&pericfg CLK_PERI_AP_DMA>;
+ clock-names = "main", "dma";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ spi0: spi@1100a000 {
+ compatible = "mediatek,mt7623-spi",
+ "mediatek,mt2701-spi";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0 0x1100a000 0 0x100>;
+ interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&topckgen CLK_TOP_SYSPLL3_D2>,
+ <&topckgen CLK_TOP_SPI0_SEL>,
+ <&pericfg CLK_PERI_SPI0>;
+ clock-names = "parent-clk", "sel-clk", "spi-clk";
+ status = "disabled";
+ };
+
+ thermal: thermal@1100b000 {
+ #thermal-sensor-cells = <1>;
+ compatible = "mediatek,mt7623-thermal",
+ "mediatek,mt2701-thermal";
+ reg = <0 0x1100b000 0 0x1000>;
+ interrupts = <0 70 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&pericfg CLK_PERI_THERM>, <&pericfg CLK_PERI_AUXADC>;
+ clock-names = "therm", "auxadc";
+ resets = <&pericfg MT2701_PERI_THERM_SW_RST>;
+ reset-names = "therm";
+ mediatek,auxadc = <&auxadc>;
+ mediatek,apmixedsys = <&apmixedsys>;
+ nvmem-cells = <&thermal_calibration_data>;
+ nvmem-cell-names = "calibration-data";
+ };
+
+ nandc: nfi@1100d000 {
+ compatible = "mediatek,mt7623-nfc",
+ "mediatek,mt2701-nfc";
+ reg = <0 0x1100d000 0 0x1000>;
+ interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_LOW>;
+ power-domains = <&scpsys MT2701_POWER_DOMAIN_IFR_MSC>;
+ clocks = <&pericfg CLK_PERI_NFI>,
+ <&pericfg CLK_PERI_NFI_PAD>;
+ clock-names = "nfi_clk", "pad_clk";
+ status = "disabled";
+ ecc-engine = <&bch>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ bch: ecc@1100e000 {
+ compatible = "mediatek,mt7623-ecc",
+ "mediatek,mt2701-ecc";
+ reg = <0 0x1100e000 0 0x1000>;
+ interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&pericfg CLK_PERI_NFI_ECC>;
+ clock-names = "nfiecc_clk";
+ status = "disabled";
+ };
+
+ spi1: spi@11016000 {
+ compatible = "mediatek,mt7623-spi",
+ "mediatek,mt2701-spi";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0 0x11016000 0 0x100>;
+ interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&topckgen CLK_TOP_SYSPLL3_D2>,
+ <&topckgen CLK_TOP_SPI1_SEL>,
+ <&pericfg CLK_PERI_SPI1>;
+ clock-names = "parent-clk", "sel-clk", "spi-clk";
+ status = "disabled";
+ };
+
+ spi2: spi@11017000 {
+ compatible = "mediatek,mt7623-spi",
+ "mediatek,mt2701-spi";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0 0x11017000 0 0x1000>;
+ interrupts = <GIC_SPI 142 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&topckgen CLK_TOP_SYSPLL3_D2>,
+ <&topckgen CLK_TOP_SPI2_SEL>,
+ <&pericfg CLK_PERI_SPI2>;
+ clock-names = "parent-clk", "sel-clk", "spi-clk";
+ status = "disabled";
+ };
+
+ afe: audio-controller@11220000 {
+ compatible = "mediatek,mt7623-audio",
+ "mediatek,mt2701-audio";
+ reg = <0 0x11220000 0 0x2000>,
+ <0 0x112a0000 0 0x20000>;
+ interrupts = <GIC_SPI 132 IRQ_TYPE_LEVEL_LOW>;
+ power-domains = <&scpsys MT2701_POWER_DOMAIN_IFR_MSC>;
+
+ clocks = <&infracfg CLK_INFRA_AUDIO>,
+ <&topckgen CLK_TOP_AUD_MUX1_SEL>,
+ <&topckgen CLK_TOP_AUD_MUX2_SEL>,
+ <&topckgen CLK_TOP_AUD_MUX1_DIV>,
+ <&topckgen CLK_TOP_AUD_MUX2_DIV>,
+ <&topckgen CLK_TOP_AUD_48K_TIMING>,
+ <&topckgen CLK_TOP_AUD_44K_TIMING>,
+ <&topckgen CLK_TOP_AUDPLL_MUX_SEL>,
+ <&topckgen CLK_TOP_APLL_SEL>,
+ <&topckgen CLK_TOP_AUD1PLL_98M>,
+ <&topckgen CLK_TOP_AUD2PLL_90M>,
+ <&topckgen CLK_TOP_HADDS2PLL_98M>,
+ <&topckgen CLK_TOP_HADDS2PLL_294M>,
+ <&topckgen CLK_TOP_AUDPLL>,
+ <&topckgen CLK_TOP_AUDPLL_D4>,
+ <&topckgen CLK_TOP_AUDPLL_D8>,
+ <&topckgen CLK_TOP_AUDPLL_D16>,
+ <&topckgen CLK_TOP_AUDPLL_D24>,
+ <&topckgen CLK_TOP_AUDINTBUS_SEL>,
+ <&clk26m>,
+ <&topckgen CLK_TOP_SYSPLL1_D4>,
+ <&topckgen CLK_TOP_AUD_K1_SRC_SEL>,
+ <&topckgen CLK_TOP_AUD_K2_SRC_SEL>,
+ <&topckgen CLK_TOP_AUD_K3_SRC_SEL>,
+ <&topckgen CLK_TOP_AUD_K4_SRC_SEL>,
+ <&topckgen CLK_TOP_AUD_K5_SRC_SEL>,
+ <&topckgen CLK_TOP_AUD_K6_SRC_SEL>,
+ <&topckgen CLK_TOP_AUD_K1_SRC_DIV>,
+ <&topckgen CLK_TOP_AUD_K2_SRC_DIV>,
+ <&topckgen CLK_TOP_AUD_K3_SRC_DIV>,
+ <&topckgen CLK_TOP_AUD_K4_SRC_DIV>,
+ <&topckgen CLK_TOP_AUD_K5_SRC_DIV>,
+ <&topckgen CLK_TOP_AUD_K6_SRC_DIV>,
+ <&topckgen CLK_TOP_AUD_I2S1_MCLK>,
+ <&topckgen CLK_TOP_AUD_I2S2_MCLK>,
+ <&topckgen CLK_TOP_AUD_I2S3_MCLK>,
+ <&topckgen CLK_TOP_AUD_I2S4_MCLK>,
+ <&topckgen CLK_TOP_AUD_I2S5_MCLK>,
+ <&topckgen CLK_TOP_AUD_I2S6_MCLK>,
+ <&topckgen CLK_TOP_ASM_M_SEL>,
+ <&topckgen CLK_TOP_ASM_H_SEL>,
+ <&topckgen CLK_TOP_UNIVPLL2_D4>,
+ <&topckgen CLK_TOP_UNIVPLL2_D2>,
+ <&topckgen CLK_TOP_SYSPLL_D5>;
+
+ clock-names = "infra_sys_audio_clk",
+ "top_audio_mux1_sel",
+ "top_audio_mux2_sel",
+ "top_audio_mux1_div",
+ "top_audio_mux2_div",
+ "top_audio_48k_timing",
+ "top_audio_44k_timing",
+ "top_audpll_mux_sel",
+ "top_apll_sel",
+ "top_aud1_pll_98M",
+ "top_aud2_pll_90M",
+ "top_hadds2_pll_98M",
+ "top_hadds2_pll_294M",
+ "top_audpll",
+ "top_audpll_d4",
+ "top_audpll_d8",
+ "top_audpll_d16",
+ "top_audpll_d24",
+ "top_audintbus_sel",
+ "clk_26m",
+ "top_syspll1_d4",
+ "top_aud_k1_src_sel",
+ "top_aud_k2_src_sel",
+ "top_aud_k3_src_sel",
+ "top_aud_k4_src_sel",
+ "top_aud_k5_src_sel",
+ "top_aud_k6_src_sel",
+ "top_aud_k1_src_div",
+ "top_aud_k2_src_div",
+ "top_aud_k3_src_div",
+ "top_aud_k4_src_div",
+ "top_aud_k5_src_div",
+ "top_aud_k6_src_div",
+ "top_aud_i2s1_mclk",
+ "top_aud_i2s2_mclk",
+ "top_aud_i2s3_mclk",
+ "top_aud_i2s4_mclk",
+ "top_aud_i2s5_mclk",
+ "top_aud_i2s6_mclk",
+ "top_asm_m_sel",
+ "top_asm_h_sel",
+ "top_univpll2_d4",
+ "top_univpll2_d2",
+ "top_syspll_d5";
+ };
+
+ mmc0: mmc@11230000 {
+ compatible = "mediatek,mt7623-mmc",
+ "mediatek,mt8135-mmc";
+ reg = <0 0x11230000 0 0x1000>;
+ interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&pericfg CLK_PERI_MSDC30_0>,
+ <&topckgen CLK_TOP_MSDC30_0_SEL>;
+ clock-names = "source", "hclk";
+ status = "disabled";
+ };
+
+ mmc1: mmc@11240000 {
+ compatible = "mediatek,mt7623-mmc",
+ "mediatek,mt8135-mmc";
+ reg = <0 0x11240000 0 0x1000>;
+ interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&pericfg CLK_PERI_MSDC30_1>,
+ <&topckgen CLK_TOP_MSDC30_1_SEL>;
+ clock-names = "source", "hclk";
+ status = "disabled";
+ };
+
+ hifsys: syscon@1a000000 {
+ compatible = "mediatek,mt7623-hifsys",
+ "mediatek,mt2701-hifsys",
+ "syscon";
+ reg = <0 0x1a000000 0 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+ usb1: usb@1a1c0000 {
+ compatible = "mediatek,mt7623-xhci",
+ "mediatek,mt8173-xhci";
+ reg = <0 0x1a1c0000 0 0x1000>,
+ <0 0x1a1c4700 0 0x0100>;
+ reg-names = "mac", "ippc";
+ interrupts = <GIC_SPI 196 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&hifsys CLK_HIFSYS_USB0PHY>,
+ <&topckgen CLK_TOP_ETHIF_SEL>;
+ clock-names = "sys_ck", "free_ck";
+ power-domains = <&scpsys MT2701_POWER_DOMAIN_HIF>;
+ phys = <&u2port0 PHY_TYPE_USB2>, <&u3port0 PHY_TYPE_USB3>;
+ status = "disabled";
+ };
+
+ u3phy1: usb-phy@1a1c4000 {
+ compatible = "mediatek,mt7623-u3phy",
+ "mediatek,mt2701-u3phy";
+ reg = <0 0x1a1c4000 0 0x0700>;
+ clocks = <&clk26m>;
+ clock-names = "u3phya_ref";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+ status = "disabled";
+
+ u2port0: usb-phy@1a1c4800 {
+ reg = <0 0x1a1c4800 0 0x0100>;
+ #phy-cells = <1>;
+ status = "okay";
+ };
+
+ u3port0: usb-phy@1a1c4900 {
+ reg = <0 0x1a1c4900 0 0x0700>;
+ #phy-cells = <1>;
+ status = "okay";
+ };
+ };
+
+ usb2: usb@1a240000 {
+ compatible = "mediatek,mt7623-xhci",
+ "mediatek,mt8173-xhci";
+ reg = <0 0x1a240000 0 0x1000>,
+ <0 0x1a244700 0 0x0100>;
+ reg-names = "mac", "ippc";
+ interrupts = <GIC_SPI 197 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&hifsys CLK_HIFSYS_USB1PHY>,
+ <&topckgen CLK_TOP_ETHIF_SEL>;
+ clock-names = "sys_ck", "free_ck";
+ power-domains = <&scpsys MT2701_POWER_DOMAIN_HIF>;
+ phys = <&u2port1 PHY_TYPE_USB2>, <&u3port1 PHY_TYPE_USB3>;
+ status = "disabled";
+ };
+
+ u3phy2: usb-phy@1a244000 {
+ compatible = "mediatek,mt7623-u3phy",
+ "mediatek,mt2701-u3phy";
+ reg = <0 0x1a244000 0 0x0700>;
+ clocks = <&clk26m>;
+ clock-names = "u3phya_ref";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+ status = "disabled";
+
+ u2port1: usb-phy@1a244800 {
+ reg = <0 0x1a244800 0 0x0100>;
+ #phy-cells = <1>;
+ status = "okay";
+ };
+
+ u3port1: usb-phy@1a244900 {
+ reg = <0 0x1a244900 0 0x0700>;
+ #phy-cells = <1>;
+ status = "okay";
+ };
+ };
+
+ ethsys: syscon@1b000000 {
+ compatible = "mediatek,mt7623-ethsys",
+ "mediatek,mt2701-ethsys",
+ "syscon";
+ reg = <0 0x1b000000 0 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ eth: ethernet@1b100000 {
+ compatible = "mediatek,mt7623-eth",
+ "mediatek,mt2701-eth",
+ "syscon";
+ reg = <0 0x1b100000 0 0x20000>;
+ interrupts = <GIC_SPI 200 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_SPI 199 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_SPI 198 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&topckgen CLK_TOP_ETHIF_SEL>,
+ <&ethsys CLK_ETHSYS_ESW>,
+ <&ethsys CLK_ETHSYS_GP1>,
+ <&ethsys CLK_ETHSYS_GP2>,
+ <&apmixedsys CLK_APMIXED_TRGPLL>;
+ clock-names = "ethif", "esw", "gp1", "gp2", "trgpll";
+ resets = <&ethsys MT2701_ETHSYS_FE_RST>,
+ <&ethsys MT2701_ETHSYS_GMAC_RST>,
+ <&ethsys MT2701_ETHSYS_PPE_RST>;
+ reset-names = "fe", "gmac", "ppe";
+ power-domains = <&scpsys MT2701_POWER_DOMAIN_ETH>;
+ mediatek,ethsys = <&ethsys>;
+ mediatek,pctl = <&syscfg_pctl_a>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ crypto: crypto@1b240000 {
+ compatible = "mediatek,mt7623-crypto";
+ reg = <0 0x1b240000 0 0x20000>;
+ interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_SPI 83 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_SPI 84 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_SPI 91 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_SPI 97 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&topckgen CLK_TOP_ETHIF_SEL>,
+ <&ethsys CLK_ETHSYS_CRYPTO>;
+ clock-names = "ethif","cryp";
+ power-domains = <&scpsys MT2701_POWER_DOMAIN_ETH>;
status = "disabled";
};
};
diff --git a/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts b/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
new file mode 100644
index 000000000000..688a86378cee
--- /dev/null
+++ b/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
@@ -0,0 +1,487 @@
+/*
+ * Copyright 2017 Sean Wang <sean.wang@mediatek.com>
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+/dts-v1/;
+#include <dt-bindings/input/input.h>
+#include "mt7623.dtsi"
+#include "mt6323.dtsi"
+
+/ {
+ model = "Bananapi BPI-R2";
+ compatible = "bananapi,bpi-r2", "mediatek,mt7623";
+
+ aliases {
+ serial2 = &uart2;
+ };
+
+ chosen {
+ stdout-path = "serial2:115200n8";
+ };
+
+ cpus {
+ cpu@0 {
+ proc-supply = <&mt6323_vproc_reg>;
+ };
+
+ cpu@1 {
+ proc-supply = <&mt6323_vproc_reg>;
+ };
+
+ cpu@2 {
+ proc-supply = <&mt6323_vproc_reg>;
+ };
+
+ cpu@3 {
+ proc-supply = <&mt6323_vproc_reg>;
+ };
+ };
+
+ gpio_keys {
+ compatible = "gpio-keys";
+ pinctrl-names = "default";
+ pinctrl-0 = <&key_pins_a>;
+
+ factory {
+ label = "factory";
+ linux,code = <BTN_0>;
+ gpios = <&pio 256 GPIO_ACTIVE_LOW>;
+ };
+
+ wps {
+ label = "wps";
+ linux,code = <KEY_WPS_BUTTON>;
+ gpios = <&pio 257 GPIO_ACTIVE_HIGH>;
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&led_pins_a>;
+
+ blue {
+ label = "bpi-r2:pio:blue";
+ gpios = <&pio 241 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+
+ green {
+ label = "bpi-r2:pio:green";
+ gpios = <&pio 240 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+
+ red {
+ label = "bpi-r2:pio:red";
+ gpios = <&pio 239 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+ };
+
+ memory@80000000 {
+ reg = <0 0x80000000 0 0x40000000>;
+ };
+};
+
+&cir {
+ pinctrl-names = "default";
+ pinctrl-0 = <&cir_pins_a>;
+ status = "okay";
+};
+
+&crypto {
+ status = "okay";
+};
+
+&eth {
+ status = "okay";
+
+ gmac0: mac@0 {
+ compatible = "mediatek,eth-mac";
+ reg = <0>;
+ phy-mode = "trgmii";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ pause;
+ };
+ };
+
+ mdio: mdio-bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ switch@0 {
+ compatible = "mediatek,mt7530";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ pinctrl-names = "default";
+ reset-gpios = <&pio 33 0>;
+ core-supply = <&mt6323_vpa_reg>;
+ io-supply = <&mt6323_vemc3v3_reg>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ port@0 {
+ reg = <0>;
+ label = "wan";
+ };
+
+ port@1 {
+ reg = <1>;
+ label = "lan0";
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "lan1";
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "lan2";
+ };
+
+ port@4 {
+ reg = <4>;
+ label = "lan3";
+ };
+
+ port@6 {
+ reg = <6>;
+ label = "cpu";
+ ethernet = <&gmac0>;
+ phy-mode = "trgmii";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+ };
+ };
+ };
+ };
+};
+
+&i2c0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_pins_a>;
+ status = "okay";
+};
+
+&i2c1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_pins_a>;
+ status = "okay";
+};
+
+&mmc0 {
+ pinctrl-names = "default", "state_uhs";
+ pinctrl-0 = <&mmc0_pins_default>;
+ pinctrl-1 = <&mmc0_pins_uhs>;
+ status = "okay";
+ bus-width = <8>;
+ max-frequency = <50000000>;
+ cap-mmc-highspeed;
+ vmmc-supply = <&mt6323_vemc3v3_reg>;
+ vqmmc-supply = <&mt6323_vio18_reg>;
+ non-removable;
+};
+
+&mmc1 {
+ pinctrl-names = "default", "state_uhs";
+ pinctrl-0 = <&mmc1_pins_default>;
+ pinctrl-1 = <&mmc1_pins_uhs>;
+ status = "okay";
+ bus-width = <4>;
+ max-frequency = <50000000>;
+ cap-sd-highspeed;
+ cd-gpios = <&pio 261 0>;
+ vmmc-supply = <&mt6323_vmch_reg>;
+ vqmmc-supply = <&mt6323_vio18_reg>;
+};
+
+&pio {
+ cir_pins_a:cir@0 {
+ pins_cir {
+ pinmux = <MT7623_PIN_46_IR_FUNC_IR>;
+ bias-disable;
+ };
+ };
+
+ i2c0_pins_a: i2c@0 {
+ pins_i2c0 {
+ pinmux = <MT7623_PIN_75_SDA0_FUNC_SDA0>,
+ <MT7623_PIN_76_SCL0_FUNC_SCL0>;
+ bias-disable;
+ };
+ };
+
+ i2c1_pins_a: i2c@1 {
+ pin_i2c1 {
+ pinmux = <MT7623_PIN_57_SDA1_FUNC_SDA1>,
+ <MT7623_PIN_58_SCL1_FUNC_SCL1>;
+ bias-disable;
+ };
+ };
+
+ i2s0_pins_a: i2s@0 {
+ pin_i2s0 {
+ pinmux = <MT7623_PIN_49_I2S0_DATA_FUNC_I2S0_DATA>,
+ <MT7623_PIN_72_I2S0_DATA_IN_FUNC_I2S0_DATA_IN>,
+ <MT7623_PIN_73_I2S0_LRCK_FUNC_I2S0_LRCK>,
+ <MT7623_PIN_74_I2S0_BCK_FUNC_I2S0_BCK>,
+ <MT7623_PIN_126_I2S0_MCLK_FUNC_I2S0_MCLK>;
+ drive-strength = <MTK_DRIVE_12mA>;
+ bias-pull-down;
+ };
+ };
+
+ i2s1_pins_a: i2s@1 {
+ pin_i2s1 {
+ pinmux = <MT7623_PIN_33_I2S1_DATA_FUNC_I2S1_DATA>,
+ <MT7623_PIN_34_I2S1_DATA_IN_FUNC_I2S1_DATA_IN>,
+ <MT7623_PIN_35_I2S1_BCK_FUNC_I2S1_BCK>,
+ <MT7623_PIN_36_I2S1_LRCK_FUNC_I2S1_LRCK>,
+ <MT7623_PIN_37_I2S1_MCLK_FUNC_I2S1_MCLK>;
+ drive-strength = <MTK_DRIVE_12mA>;
+ bias-pull-down;
+ };
+ };
+
+ key_pins_a: keys@0 {
+ pins_keys {
+ pinmux = <MT7623_PIN_256_GPIO256_FUNC_GPIO256>,
+ <MT7623_PIN_257_GPIO257_FUNC_GPIO257> ;
+ input-enable;
+ };
+ };
+
+ led_pins_a: leds@0 {
+ pins_leds {
+ pinmux = <MT7623_PIN_239_EXT_SDIO0_FUNC_GPIO239>,
+ <MT7623_PIN_240_EXT_XCS_FUNC_GPIO240>,
+ <MT7623_PIN_241_EXT_SCK_FUNC_GPIO241>;
+ };
+ };
+
+ mmc0_pins_default: mmc0default {
+ pins_cmd_dat {
+ pinmux = <MT7623_PIN_111_MSDC0_DAT7_FUNC_MSDC0_DAT7>,
+ <MT7623_PIN_112_MSDC0_DAT6_FUNC_MSDC0_DAT6>,
+ <MT7623_PIN_113_MSDC0_DAT5_FUNC_MSDC0_DAT5>,
+ <MT7623_PIN_114_MSDC0_DAT4_FUNC_MSDC0_DAT4>,
+ <MT7623_PIN_118_MSDC0_DAT3_FUNC_MSDC0_DAT3>,
+ <MT7623_PIN_119_MSDC0_DAT2_FUNC_MSDC0_DAT2>,
+ <MT7623_PIN_120_MSDC0_DAT1_FUNC_MSDC0_DAT1>,
+ <MT7623_PIN_121_MSDC0_DAT0_FUNC_MSDC0_DAT0>,
+ <MT7623_PIN_116_MSDC0_CMD_FUNC_MSDC0_CMD>;
+ input-enable;
+ bias-pull-up;
+ };
+
+ pins_clk {
+ pinmux = <MT7623_PIN_117_MSDC0_CLK_FUNC_MSDC0_CLK>;
+ bias-pull-down;
+ };
+
+ pins_rst {
+ pinmux = <MT7623_PIN_115_MSDC0_RSTB_FUNC_MSDC0_RSTB>;
+ bias-pull-up;
+ };
+ };
+
+ mmc0_pins_uhs: mmc0 {
+ pins_cmd_dat {
+ pinmux = <MT7623_PIN_111_MSDC0_DAT7_FUNC_MSDC0_DAT7>,
+ <MT7623_PIN_112_MSDC0_DAT6_FUNC_MSDC0_DAT6>,
+ <MT7623_PIN_113_MSDC0_DAT5_FUNC_MSDC0_DAT5>,
+ <MT7623_PIN_114_MSDC0_DAT4_FUNC_MSDC0_DAT4>,
+ <MT7623_PIN_118_MSDC0_DAT3_FUNC_MSDC0_DAT3>,
+ <MT7623_PIN_119_MSDC0_DAT2_FUNC_MSDC0_DAT2>,
+ <MT7623_PIN_120_MSDC0_DAT1_FUNC_MSDC0_DAT1>,
+ <MT7623_PIN_121_MSDC0_DAT0_FUNC_MSDC0_DAT0>,
+ <MT7623_PIN_116_MSDC0_CMD_FUNC_MSDC0_CMD>;
+ input-enable;
+ drive-strength = <MTK_DRIVE_2mA>;
+ bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
+ };
+
+ pins_clk {
+ pinmux = <MT7623_PIN_117_MSDC0_CLK_FUNC_MSDC0_CLK>;
+ drive-strength = <MTK_DRIVE_2mA>;
+ bias-pull-down = <MTK_PUPD_SET_R1R0_01>;
+ };
+
+ pins_rst {
+ pinmux = <MT7623_PIN_115_MSDC0_RSTB_FUNC_MSDC0_RSTB>;
+ bias-pull-up;
+ };
+ };
+
+ mmc1_pins_default: mmc1default {
+ pins_cmd_dat {
+ pinmux = <MT7623_PIN_107_MSDC1_DAT0_FUNC_MSDC1_DAT0>,
+ <MT7623_PIN_108_MSDC1_DAT1_FUNC_MSDC1_DAT1>,
+ <MT7623_PIN_109_MSDC1_DAT2_FUNC_MSDC1_DAT2>,
+ <MT7623_PIN_110_MSDC1_DAT3_FUNC_MSDC1_DAT3>,
+ <MT7623_PIN_105_MSDC1_CMD_FUNC_MSDC1_CMD>;
+ input-enable;
+ drive-strength = <MTK_DRIVE_4mA>;
+ bias-pull-up = <MTK_PUPD_SET_R1R0_10>;
+ };
+
+ pins_clk {
+ pinmux = <MT7623_PIN_106_MSDC1_CLK_FUNC_MSDC1_CLK>;
+ bias-pull-down;
+ drive-strength = <MTK_DRIVE_4mA>;
+ };
+
+ pins_wp {
+ pinmux = <MT7623_PIN_29_EINT7_FUNC_MSDC1_WP>;
+ input-enable;
+ bias-pull-up;
+ };
+
+ pins_insert {
+ pinmux = <MT7623_PIN_261_MSDC1_INS_FUNC_GPIO261>;
+ bias-pull-up;
+ };
+ };
+
+ mmc1_pins_uhs: mmc1 {
+ pins_cmd_dat {
+ pinmux = <MT7623_PIN_107_MSDC1_DAT0_FUNC_MSDC1_DAT0>,
+ <MT7623_PIN_108_MSDC1_DAT1_FUNC_MSDC1_DAT1>,
+ <MT7623_PIN_109_MSDC1_DAT2_FUNC_MSDC1_DAT2>,
+ <MT7623_PIN_110_MSDC1_DAT3_FUNC_MSDC1_DAT3>,
+ <MT7623_PIN_105_MSDC1_CMD_FUNC_MSDC1_CMD>;
+ input-enable;
+ drive-strength = <MTK_DRIVE_4mA>;
+ bias-pull-up = <MTK_PUPD_SET_R1R0_10>;
+ };
+
+ pins_clk {
+ pinmux = <MT7623_PIN_106_MSDC1_CLK_FUNC_MSDC1_CLK>;
+ drive-strength = <MTK_DRIVE_4mA>;
+ bias-pull-down = <MTK_PUPD_SET_R1R0_10>;
+ };
+ };
+
+ pwm_pins_a: pwm@0 {
+ pins_pwm {
+ pinmux = <MT7623_PIN_203_PWM0_FUNC_PWM0>,
+ <MT7623_PIN_204_PWM1_FUNC_PWM1>,
+ <MT7623_PIN_205_PWM2_FUNC_PWM2>,
+ <MT7623_PIN_206_PWM3_FUNC_PWM3>,
+ <MT7623_PIN_207_PWM4_FUNC_PWM4>;
+ };
+ };
+
+ spi0_pins_a: spi@0 {
+ pins_spi {
+ pinmux = <MT7623_PIN_53_SPI0_CSN_FUNC_SPI0_CS>,
+ <MT7623_PIN_54_SPI0_CK_FUNC_SPI0_CK>,
+ <MT7623_PIN_55_SPI0_MI_FUNC_SPI0_MI>,
+ <MT7623_PIN_56_SPI0_MO_FUNC_SPI0_MO>;
+ bias-disable;
+ };
+ };
+
+ uart0_pins_a: uart@0 {
+ pins_dat {
+ pinmux = <MT7623_PIN_79_URXD0_FUNC_URXD0>,
+ <MT7623_PIN_80_UTXD0_FUNC_UTXD0>;
+ };
+ };
+
+ uart1_pins_a: uart@1 {
+ pins_dat {
+ pinmux = <MT7623_PIN_81_URXD1_FUNC_URXD1>,
+ <MT7623_PIN_82_UTXD1_FUNC_UTXD1>;
+ };
+ };
+};
+
+&pwm {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm_pins_a>;
+ status = "okay";
+};
+
+&pwrap {
+ mt6323 {
+ mt6323led: led {
+ compatible = "mediatek,mt6323-led";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led@0 {
+ reg = <0>;
+ label = "bpi-r2:isink:green";
+ default-state = "off";
+ };
+
+ led@1 {
+ reg = <1>;
+ label = "bpi-r2:isink:red";
+ default-state = "off";
+ };
+
+ led@2 {
+ reg = <2>;
+ label = "bpi-r2:isink:blue";
+ default-state = "off";
+ };
+ };
+ };
+};
+
+&spi0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi0_pins_a>;
+ status = "okay";
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pins_a>;
+ status = "disabled";
+};
+
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_pins_a>;
+ status = "disabled";
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&usb1 {
+ vusb33-supply = <&mt6323_vusb_reg>;
+ status = "okay";
+};
+
+&usb2 {
+ vusb33-supply = <&mt6323_vusb_reg>;
+ status = "okay";
+};
+
+&u3phy1 {
+ status = "okay";
+};
+
+&u3phy2 {
+ status = "okay";
+};
+
diff --git a/arch/arm/boot/dts/mt7623n-rfb-nand.dts b/arch/arm/boot/dts/mt7623n-rfb-nand.dts
new file mode 100644
index 000000000000..17c578f0d261
--- /dev/null
+++ b/arch/arm/boot/dts/mt7623n-rfb-nand.dts
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: John Crispin <john@phrozen.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+/dts-v1/;
+#include "mt7623n-rfb.dtsi"
+
+/ {
+ model = "MediaTek MT7623N NAND reference board";
+ compatible = "mediatek,mt7623n-rfb-nand", "mediatek,mt7623";
+};
+
+&bch {
+ status = "okay";
+};
+
+&nandc {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&nand_pins_default>;
+
+ nand@0 {
+ reg = <0>;
+ spare_per_sector = <64>;
+ nand-ecc-mode = "hw";
+ nand-ecc-strength = <12>;
+ nand-ecc-step-size = <1024>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "preloader";
+ reg = <0x0 0x40000>;
+ };
+
+ partition@40000 {
+ label = "uboot";
+ reg = <0x40000 0x80000>;
+ };
+
+ partition@C0000 {
+ label = "uboot-env";
+ reg = <0xC0000 0x40000>;
+ };
+
+ partition@140000 {
+ label = "bootimg";
+ reg = <0x140000 0x2000000>;
+ };
+
+ partition@2140000 {
+ label = "recovery";
+ reg = <0x2140000 0x2000000>;
+ };
+
+ partition@4140000 {
+ label = "rootfs";
+ reg = <0x4140000 0x1000000>;
+ };
+
+ partition@5140000 {
+ label = "usrdata";
+ reg = <0x5140000 0x1000000>;
+ };
+ };
+ };
+};
+
+&pio {
+ nand_pins_default: nanddefault {
+ pins_ale {
+ pinmux = <MT7623_PIN_116_MSDC0_CMD_FUNC_NALE>;
+ drive-strength = <MTK_DRIVE_8mA>;
+ bias-pull-down = <MTK_PUPD_SET_R1R0_10>;
+ };
+
+ pins_dat {
+ pinmux = <MT7623_PIN_111_MSDC0_DAT7_FUNC_NLD7>,
+ <MT7623_PIN_112_MSDC0_DAT6_FUNC_NLD6>,
+ <MT7623_PIN_114_MSDC0_DAT4_FUNC_NLD4>,
+ <MT7623_PIN_118_MSDC0_DAT3_FUNC_NLD3>,
+ <MT7623_PIN_121_MSDC0_DAT0_FUNC_NLD0>,
+ <MT7623_PIN_120_MSDC0_DAT1_FUNC_NLD1>,
+ <MT7623_PIN_113_MSDC0_DAT5_FUNC_NLD5>,
+ <MT7623_PIN_115_MSDC0_RSTB_FUNC_NLD8>,
+ <MT7623_PIN_119_MSDC0_DAT2_FUNC_NLD2>;
+ input-enable;
+ drive-strength = <MTK_DRIVE_8mA>;
+ bias-pull-up;
+ };
+
+ pins_we {
+ pinmux = <MT7623_PIN_117_MSDC0_CLK_FUNC_NWEB>;
+ drive-strength = <MTK_DRIVE_8mA>;
+ bias-pull-up = <MTK_PUPD_SET_R1R0_10>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/mt7623n-rfb.dtsi b/arch/arm/boot/dts/mt7623n-rfb.dtsi
new file mode 100644
index 000000000000..256c5fd947bf
--- /dev/null
+++ b/arch/arm/boot/dts/mt7623n-rfb.dtsi
@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: John Crispin <john@phrozen.org>
+ * Sean Wang <sean.wang@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+/dts-v1/;
+#include "mt7623.dtsi"
+#include "mt6323.dtsi"
+
+/ {
+ aliases {
+ serial0 = &uart0;
+ serial1 = &uart1;
+ serial2 = &uart2;
+ };
+
+ chosen {
+ stdout-path = "serial2:115200n8";
+ };
+
+ cpus {
+ cpu0 {
+ proc-supply = <&mt6323_vproc_reg>;
+ };
+
+ cpu1 {
+ proc-supply = <&mt6323_vproc_reg>;
+ };
+
+ cpu2 {
+ proc-supply = <&mt6323_vproc_reg>;
+ };
+
+ cpu3 {
+ proc-supply = <&mt6323_vproc_reg>;
+ };
+ };
+
+ memory@80000000 {
+ reg = <0 0x80000000 0 0x40000000>;
+ };
+
+ usb_p1_vbus: regulator@0 {
+ compatible = "regulator-fixed";
+ regulator-name = "usb_vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&pio 135 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+};
+
+&mmc0 {
+ vmmc-supply = <&mt6323_vemc3v3_reg>;
+ vqmmc-supply = <&mt6323_vio18_reg>;
+};
+
+&mmc1 {
+ vmmc-supply = <&mt6323_vmch_reg>;
+ vqmmc-supply = <&mt6323_vmc_reg>;
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&uart1 {
+ status = "okay";
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&usb1 {
+ vbus-supply = <&usb_p1_vbus>;
+ status = "okay";
+};
+
+&u3phy1 {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/omap2420-n8x0-common.dtsi b/arch/arm/boot/dts/omap2420-n8x0-common.dtsi
index 7e5ffc583c90..91886231e5a8 100644
--- a/arch/arm/boot/dts/omap2420-n8x0-common.dtsi
+++ b/arch/arm/boot/dts/omap2420-n8x0-common.dtsi
@@ -15,8 +15,8 @@
>;
#address-cells = <1>;
#size-cells = <0>;
- retu_mfd: retu@1 {
- compatible = "retu-mfd";
+ retu: retu@1 {
+ compatible = "nokia,retu";
interrupt-parent = <&gpio4>;
interrupts = <12 IRQ_TYPE_EDGE_RISING>;
reg = <0x1>;
diff --git a/arch/arm/boot/dts/omap3-beagle-xm.dts b/arch/arm/boot/dts/omap3-beagle-xm.dts
index 673cee2234b2..683b96a8f73e 100644
--- a/arch/arm/boot/dts/omap3-beagle-xm.dts
+++ b/arch/arm/boot/dts/omap3-beagle-xm.dts
@@ -299,7 +299,7 @@
&mmc1 {
vmmc-supply = <&vmmc1>;
- vmmc_aux-supply = <&vsim>;
+ vqmmc-supply = <&vsim>;
bus-width = <8>;
};
diff --git a/arch/arm/boot/dts/omap3-beagle.dts b/arch/arm/boot/dts/omap3-beagle.dts
index 4be85ce59dd1..4d2eaf843fa9 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -283,7 +283,7 @@
&mmc1 {
vmmc-supply = <&vmmc1>;
- vmmc_aux-supply = <&vsim>;
+ vqmmc-supply = <&vsim>;
bus-width = <8>;
};
diff --git a/arch/arm/boot/dts/omap3-cm-t3517.dts b/arch/arm/boot/dts/omap3-cm-t3517.dts
index 53ae04f9104d..3d293b345e99 100644
--- a/arch/arm/boot/dts/omap3-cm-t3517.dts
+++ b/arch/arm/boot/dts/omap3-cm-t3517.dts
@@ -129,7 +129,7 @@
pinctrl-names = "default";
pinctrl-0 = <&mmc2_pins>;
vmmc-supply = <&wl12xx_vmmc2>;
- vmmc_aux-supply = <&wl12xx_vaux2>;
+ vqmmc-supply = <&wl12xx_vaux2>;
non-removable;
bus-width = <4>;
cap-power-off-card;
diff --git a/arch/arm/boot/dts/omap3-cm-t3730.dts b/arch/arm/boot/dts/omap3-cm-t3730.dts
index 2294f5b0aa10..bdf4b7fdda39 100644
--- a/arch/arm/boot/dts/omap3-cm-t3730.dts
+++ b/arch/arm/boot/dts/omap3-cm-t3730.dts
@@ -69,7 +69,7 @@
pinctrl-names = "default";
pinctrl-0 = <&mmc2_pins>;
vmmc-supply = <&wl12xx_vmmc2>;
- vmmc_aux-supply = <&wl12xx_vaux2>;
+ vqmmc-supply = <&wl12xx_vaux2>;
non-removable;
bus-width = <4>;
cap-power-off-card;
diff --git a/arch/arm/boot/dts/omap3-cm-t3x.dtsi b/arch/arm/boot/dts/omap3-cm-t3x.dtsi
index 57b9a028a49a..fccd5383243c 100644
--- a/arch/arm/boot/dts/omap3-cm-t3x.dtsi
+++ b/arch/arm/boot/dts/omap3-cm-t3x.dtsi
@@ -188,7 +188,7 @@
clock-frequency = <400000>;
at24@50 {
- compatible = "at24,24c02";
+ compatible = "atmel,24c02";
pagesize = <16>;
reg = <0x50>;
};
diff --git a/arch/arm/boot/dts/omap3-devkit8000-common.dtsi b/arch/arm/boot/dts/omap3-devkit8000-common.dtsi
index f330c69cc683..0c0bb1b01b0b 100644
--- a/arch/arm/boot/dts/omap3-devkit8000-common.dtsi
+++ b/arch/arm/boot/dts/omap3-devkit8000-common.dtsi
@@ -149,7 +149,7 @@
&mmc1 {
vmmc-supply = <&vmmc1>;
- vmmc_aux-supply = <&vsim>;
+ vqmmc-supply = <&vsim>;
bus-width = <8>;
};
@@ -201,7 +201,8 @@
};
&gpmc {
- ranges = <0 0 0x30000000 0x1000000>; /* CS0: 16MB for NAND */
+ ranges = <0 0 0x30000000 0x1000000 /* CS0: 16MB for NAND */
+ 6 0 0x2c000000 0x1000000>; /* CS6: 16MB for DM9000 */
nand@0,0 {
compatible = "ti,omap2-nand";
@@ -256,12 +257,8 @@
reg = <0x680000 0xf980000>;
};
};
-};
-
-&gpmc {
- ranges = <6 0 0x2c000000 0x1000000>; /* CS6: 16MB for DM9000 */
- ethernet@0,0 {
+ ethernet@6,0 {
compatible = "davicom,dm9000";
reg = <6 0x000 2
6 0x400 2>; /* CS6, offset 0 and 0x400, IO size 2 */
diff --git a/arch/arm/boot/dts/omap3-evm-37xx.dts b/arch/arm/boot/dts/omap3-evm-37xx.dts
index 4f9a76544602..c963b31ec3b3 100644
--- a/arch/arm/boot/dts/omap3-evm-37xx.dts
+++ b/arch/arm/boot/dts/omap3-evm-37xx.dts
@@ -34,7 +34,15 @@
>;
};
+&hsusb2_phy {
+ pinctrl-names = "default";
+ pinctrl-0 = <&ehci_phy_pins>;
+};
+
&omap3_pmx_core {
+ pinctrl-names = "default";
+ pinctrl-0 = <&on_board_gpio_61 &hsusb2_pins>;
+
dss_dpi_pins1: pinmux_dss_dpi_pins2 {
pinctrl-single,pins = <
OMAP3_CORE1_IOPAD(0x20d4, PIN_OUTPUT | MUX_MODE0) /* dss_pclk.dss_pclk */
@@ -98,6 +106,37 @@
>;
};
+ /* Devices are routed with gpmc_nbe1.gpio_61 to on-board devices */
+ on_board_gpio_61: pinmux_ehci_port_select_pins {
+ pinctrl-single,pins = <
+ OMAP3_CORE1_IOPAD(0x20c8, PIN_OUTPUT | MUX_MODE4)
+ >;
+ };
+
+ /* Used by OHCI and EHCI. OHCI won't work without external phy */
+ hsusb2_pins: pinmux_hsusb2_pins {
+ pinctrl-single,pins = <
+
+ /* mcspi1_cs3.hsusb2_data2 */
+ OMAP3_CORE1_IOPAD(0x21d4, PIN_INPUT_PULLDOWN | MUX_MODE3)
+
+ /* mcspi2_clk.hsusb2_data7 */
+ OMAP3_CORE1_IOPAD(0x21d6, PIN_INPUT_PULLDOWN | MUX_MODE3)
+
+ /* mcspi2_simo.hsusb2_data4 */
+ OMAP3_CORE1_IOPAD(0x21d8, PIN_INPUT_PULLDOWN | MUX_MODE3)
+
+ /* mcspi2_somi.hsusb2_data5 */
+ OMAP3_CORE1_IOPAD(0x21da, PIN_INPUT_PULLDOWN | MUX_MODE3)
+
+ /* mcspi2_cs0.hsusb2_data6 */
+ OMAP3_CORE1_IOPAD(0x21dc, PIN_INPUT_PULLDOWN | MUX_MODE3)
+
+ /* mcspi2_cs1.hsusb2_data3 */
+ OMAP3_CORE1_IOPAD(0x21de, PIN_INPUT_PULLDOWN | MUX_MODE3)
+ >;
+ };
+
wl12xx_gpio: pinmux_wl12xx_gpio {
pinctrl-single,pins = <
OMAP3_CORE1_IOPAD(0x2180, PIN_OUTPUT | MUX_MODE4) /* uart1_cts.gpio_150 */
@@ -112,6 +151,46 @@
};
};
+&omap3_pmx_core2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&hsusb2_2_pins>;
+
+ ehci_phy_pins: pinmux_ehci_phy_pins {
+ pinctrl-single,pins = <
+
+ /* EHCI PHY reset GPIO etk_d7.gpio_21 */
+ OMAP3630_CORE2_IOPAD(0x25ea, PIN_OUTPUT | MUX_MODE4)
+
+ /* EHCI VBUS etk_d8.gpio_22 */
+ OMAP3630_CORE2_IOPAD(0x25ec, PIN_OUTPUT | MUX_MODE4)
+ >;
+ };
+
+ /* Used by OHCI and EHCI. OHCI won't work without external phy */
+ hsusb2_2_pins: pinmux_hsusb2_2_pins {
+ pinctrl-single,pins = <
+
+ /* etk_d10.hsusb2_clk */
+ OMAP3630_CORE2_IOPAD(0x25f0, PIN_OUTPUT | MUX_MODE3)
+
+ /* etk_d11.hsusb2_stp */
+ OMAP3630_CORE2_IOPAD(0x25f2, PIN_OUTPUT | MUX_MODE3)
+
+ /* etk_d12.hsusb2_dir */
+ OMAP3630_CORE2_IOPAD(0x25f4, PIN_INPUT_PULLDOWN | MUX_MODE3)
+
+ /* etk_d13.hsusb2_nxt */
+ OMAP3630_CORE2_IOPAD(0x25f6, PIN_INPUT_PULLDOWN | MUX_MODE3)
+
+ /* etk_d14.hsusb2_data0 */
+ OMAP3630_CORE2_IOPAD(0x25f8, PIN_INPUT_PULLDOWN | MUX_MODE3)
+
+ /* etk_d15.hsusb2_data1 */
+ OMAP3630_CORE2_IOPAD(0x25fa, PIN_INPUT_PULLDOWN | MUX_MODE3)
+ >;
+ };
+};
+
&omap3_pmx_wkup {
dss_dpi_pins2: pinmux_dss_dpi_pins1 {
pinctrl-single,pins = <
@@ -153,6 +232,29 @@
pinctrl-0 = <&uart3_pins>;
};
+/*
+ * GPIO_61 (nUSB2_EN_1V8) must be low to enable on-board EHCI USB2 interface
+ * for bus switch SN74CB3Q3384A, level-shifter SN74AVC16T245DGGR, and 1.8V.
+ */
+&gpio2 {
+ en_usb2_port {
+ gpio-hog;
+ gpios = <29 GPIO_ACTIVE_HIGH>; /* gpio_61 */
+ output-low;
+ line-name = "enable usb2 port";
+ };
+};
+
+/* T2_GPIO_2 low to route GPIO_61 to on-board devices */
+&twl_gpio {
+ en_on_board_gpio_61 {
+ gpio-hog;
+ gpios = <2 GPIO_ACTIVE_HIGH>;
+ output-low;
+ line-name = "en_hsusb2_clk";
+ };
+};
+
&gpmc {
ranges = <0 0 0x30000000 0x1000000>, /* CS0: 16MB for NAND */
<5 0 0x2c000000 0x01000000>;
diff --git a/arch/arm/boot/dts/omap3-evm-common.dtsi b/arch/arm/boot/dts/omap3-evm-common.dtsi
index 090475083c2f..ff35803088e3 100644
--- a/arch/arm/boot/dts/omap3-evm-common.dtsi
+++ b/arch/arm/boot/dts/omap3-evm-common.dtsi
@@ -12,6 +12,24 @@
};
};
+ /* HS USB Port 2 Power */
+ hsusb2_power: hsusb2_power_reg {
+ compatible = "regulator-fixed";
+ regulator-name = "hsusb2_vbus";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio1 22 GPIO_ACTIVE_HIGH>; /* gpio_22 */
+ startup-delay-us = <70000>;
+ enable-active-high;
+ };
+
+ /* HS USB Host PHY on PORT 2 */
+ hsusb2_phy: hsusb2_phy {
+ compatible = "usb-nop-xceiv";
+ reset-gpios = <&gpio1 21 GPIO_ACTIVE_LOW>; /* gpio_21 */
+ vcc-supply = <&hsusb2_power>;
+ };
+
leds {
compatible = "gpio-leds";
ledb {
@@ -76,7 +94,6 @@
&lcd_3v3 {
gpio = <&gpio5 25 GPIO_ACTIVE_LOW>; /* gpio153 */
- enable-active-low;
};
&lcd0 {
@@ -98,7 +115,7 @@
&mmc1 {
interrupts-extended = <&intc 83 &omap3_pmx_core 0x11a>;
vmmc-supply = <&vmmc1>;
- vmmc_aux-supply = <&vsim>;
+ vqmmc-supply = <&vsim>;
bus-width = <8>;
};
@@ -143,6 +160,14 @@
>;
};
+&usbhshost {
+ port2-mode = "ehci-phy";
+};
+
+&usbhsehci {
+ phys = <0 &hsusb2_phy>;
+};
+
&usb_otg_hs {
interface-type = <0>;
usb-phy = <&usb2_phy>;
@@ -159,3 +184,10 @@
reg = <5 0 0xff>;
};
};
+
+&vaux2 {
+ regulator-name = "usb_1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+};
diff --git a/arch/arm/boot/dts/omap3-gta04.dtsi b/arch/arm/boot/dts/omap3-gta04.dtsi
index 9ec737069369..4504908c23fe 100644
--- a/arch/arm/boot/dts/omap3-gta04.dtsi
+++ b/arch/arm/boot/dts/omap3-gta04.dtsi
@@ -419,7 +419,7 @@
/* RFID EEPROM */
m24lr64@50 {
- compatible = "at,24c64";
+ compatible = "atmel,24c64";
reg = <0x50>;
};
};
diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index 49f37084e435..4acd32a1c4ef 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -164,6 +164,29 @@
};
};
+&isp {
+ vdds_csib-supply = <&vaux2>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&camera_pins>;
+
+ ports {
+ port@1 {
+ reg = <1>;
+
+ csi_isp: endpoint {
+ remote-endpoint = <&csi_cam1>;
+ bus-type = <3>; /* CCP2 */
+ clock-lanes = <1>;
+ data-lanes = <0>;
+ lane-polarity = <0 0>;
+ /* Select strobe = <1> for back camera, <0> for front camera */
+ strobe = <1>;
+ };
+ };
+ };
+};
+
&omap3_pmx_core {
pinctrl-names = "default";
@@ -328,6 +351,22 @@
OMAP3_CORE1_IOPAD(0x218e, PIN_OUTPUT | MUX_MODE4) /* gpio 157 => cmt_bsi */
>;
};
+
+ camera_pins: pinmux_camera {
+ pinctrl-single,pins = <
+ OMAP3_CORE1_IOPAD(0x210c, PIN_OUTPUT | MUX_MODE7) /* cam_hs */
+ OMAP3_CORE1_IOPAD(0x210e, PIN_OUTPUT | MUX_MODE7) /* cam_vs */
+ OMAP3_CORE1_IOPAD(0x2110, PIN_OUTPUT | MUX_MODE0) /* cam_xclka */
+ OMAP3_CORE1_IOPAD(0x211e, PIN_OUTPUT | MUX_MODE7) /* cam_d4 */
+ OMAP3_CORE1_IOPAD(0x2122, PIN_INPUT | MUX_MODE0) /* cam_d6 */
+ OMAP3_CORE1_IOPAD(0x2124, PIN_INPUT | MUX_MODE0) /* cam_d7 */
+ OMAP3_CORE1_IOPAD(0x2126, PIN_INPUT | MUX_MODE0) /* cam_d8 */
+ OMAP3_CORE1_IOPAD(0x2128, PIN_INPUT | MUX_MODE0) /* cam_d9 */
+ OMAP3_CORE1_IOPAD(0x212a, PIN_OUTPUT | MUX_MODE7) /* cam_d10 */
+ OMAP3_CORE1_IOPAD(0x212e, PIN_OUTPUT | MUX_MODE7) /* cam_xclkb */
+ OMAP3_CORE1_IOPAD(0x2132, PIN_OUTPUT | MUX_MODE0) /* cam_strobe */
+ >;
+ };
};
&i2c1 {
@@ -726,6 +765,40 @@
st,max-limit-y = <32>;
st,max-limit-z = <32>;
};
+
+ cam1: camera@3e {
+ compatible = "toshiba,et8ek8";
+ reg = <0x3e>;
+
+ vana-supply = <&vaux4>;
+
+ clocks = <&isp 0>;
+ clock-names = "extclk";
+ clock-frequency = <9600000>;
+
+ reset-gpio = <&gpio4 6 GPIO_ACTIVE_HIGH>; /* 102 */
+
+ port {
+ csi_cam1: endpoint {
+ bus-type = <3>; /* CCP2 */
+ strobe = <1>;
+ clock-inv = <0>;
+ crc = <1>;
+
+ remote-endpoint = <&csi_isp>;
+ };
+ };
+ };
+
+ /* D/A converter for auto-focus */
+ ad5820: dac@0c {
+ compatible = "adi,ad5820";
+ reg = <0x0c>;
+
+ VANA-supply = <&vaux4>;
+
+ #io-channel-cells = <0>;
+ };
};
&mmc1 {
@@ -733,6 +806,9 @@
pinctrl-0 = <&mmc1_pins>;
vmmc-supply = <&vmmc1>;
bus-width = <4>;
+ /* For debugging, it is often good idea to remove this GPIO.
+ It means you can remove back cover (to reboot by removing
+ battery) and still use the MMC card. */
cd-gpios = <&gpio6 0 GPIO_ACTIVE_HIGH>; /* 160 */
};
@@ -741,7 +817,7 @@
pinctrl-names = "default";
pinctrl-0 = <&mmc2_pins>;
vmmc-supply = <&vaux3>;
- vmmc_aux-supply = <&vsim>;
+ vqmmc-supply = <&vsim>;
bus-width = <8>;
non-removable;
no-sdio;
diff --git a/arch/arm/boot/dts/omap3-n950-n9.dtsi b/arch/arm/boot/dts/omap3-n950-n9.dtsi
index df3366fa5409..1b0bd72945f2 100644
--- a/arch/arm/boot/dts/omap3-n950-n9.dtsi
+++ b/arch/arm/boot/dts/omap3-n950-n9.dtsi
@@ -265,6 +265,24 @@
&i2c2 {
clock-frequency = <400000>;
+
+ as3645a@30 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x30>;
+ compatible = "ams,as3645a";
+ flash@0 {
+ reg = <0x0>;
+ flash-timeout-us = <150000>;
+ flash-max-microamp = <320000>;
+ led-max-microamp = <60000>;
+ ams,input-max-microamp = <1750000>;
+ };
+ indicator@1 {
+ reg = <0x1>;
+ led-max-microamp = <10000>;
+ };
+ };
};
&i2c3 {
diff --git a/arch/arm/boot/dts/omap3-overo-base.dtsi b/arch/arm/boot/dts/omap3-overo-base.dtsi
index 401fae838fe9..f25e158e7163 100644
--- a/arch/arm/boot/dts/omap3-overo-base.dtsi
+++ b/arch/arm/boot/dts/omap3-overo-base.dtsi
@@ -74,16 +74,6 @@
gpio = <&gpio1 16 GPIO_ACTIVE_HIGH>; /* gpio_16: WiFi nReset */
startup-delay-us = <10000>;
};
-
- /* Regulator to trigger the nReset signal of the Bluetooth module */
- w3cbw003c_bt_nreset: regulator-w3cbw003c-bt-nreset {
- compatible = "regulator-fixed";
- regulator-name = "regulator-w3cbw003c-bt-nreset";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- gpio = <&gpio6 4 GPIO_ACTIVE_HIGH>; /* gpio_164: BT nReset */
- startup-delay-us = <10000>;
- };
};
&omap3_pmx_core {
@@ -191,8 +181,7 @@
pinctrl-names = "default";
pinctrl-0 = <&mmc2_pins>;
vmmc-supply = <&w3cbw003c_npoweron>;
- vqmmc-supply = <&w3cbw003c_bt_nreset>;
- vmmc_aux-supply = <&w3cbw003c_wifi_nreset>;
+ vqmmc-supply = <&w3cbw003c_wifi_nreset>;
bus-width = <4>;
cap-sdio-irq;
non-removable;
diff --git a/arch/arm/boot/dts/omap3-sb-t35.dtsi b/arch/arm/boot/dts/omap3-sb-t35.dtsi
index 73643fabde5d..4476fb685a1b 100644
--- a/arch/arm/boot/dts/omap3-sb-t35.dtsi
+++ b/arch/arm/boot/dts/omap3-sb-t35.dtsi
@@ -50,7 +50,6 @@
pinctrl-names = "default";
pinctrl-0 = <&sb_t35_audio_amp>;
gpio = <&gpio2 29 GPIO_ACTIVE_LOW>; /* gpio_61 */
- enable-active-low;
regulator-always-on;
};
};
@@ -90,7 +89,7 @@
clock-frequency = <400000>;
at24@50 {
- compatible = "at24,24c02";
+ compatible = "atmel,24c02";
pagesize = <16>;
reg = <0x50>;
};
diff --git a/arch/arm/boot/dts/omap3-tao3530.dtsi b/arch/arm/boot/dts/omap3-tao3530.dtsi
index dc80886b5329..9a601d15247b 100644
--- a/arch/arm/boot/dts/omap3-tao3530.dtsi
+++ b/arch/arm/boot/dts/omap3-tao3530.dtsi
@@ -63,7 +63,6 @@
regulator-min-microvolt = <3150000>;
regulator-max-microvolt = <3150000>;
gpio = <&gpio5 29 GPIO_ACTIVE_LOW>; /* gpio_157 */
- enable-active-low;
startup-delay-us = <10000>;
};
};
@@ -224,7 +223,7 @@
pinctrl-names = "default";
pinctrl-0 = <&mmc1_pins>;
vmmc-supply = <&vmmc1>;
- vmmc_aux-supply = <&vsim>;
+ vqmmc-supply = <&vsim>;
cd-gpios = <&twl_gpio 0 GPIO_ACTIVE_HIGH>;
bus-width = <8>;
};
diff --git a/arch/arm/boot/dts/omap3-zoom3.dts b/arch/arm/boot/dts/omap3-zoom3.dts
index 45e2ce0803de..96d0301a336a 100644
--- a/arch/arm/boot/dts/omap3-zoom3.dts
+++ b/arch/arm/boot/dts/omap3-zoom3.dts
@@ -174,7 +174,7 @@
&mmc1 {
vmmc-supply = <&vmmc1>;
- vmmc_aux-supply = <&vsim>;
+ vqmmc-supply = <&vsim>;
bus-width = <4>;
pinctrl-names = "default";
pinctrl-0 = <&mmc1_pins>;
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index a3ff4933dbc1..bdaf30c8c405 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -713,14 +713,12 @@
usbhsohci: ohci@48064400 {
compatible = "ti,ohci-omap3";
reg = <0x48064400 0x400>;
- interrupt-parent = <&intc>;
interrupts = <76>;
};
usbhsehci: ehci@48064800 {
compatible = "ti,ehci-omap";
reg = <0x48064800 0x400>;
- interrupt-parent = <&intc>;
interrupts = <77>;
};
};
@@ -831,7 +829,6 @@
reg-names = "tx",
"rx";
- interrupt-parent = <&intc>;
interrupts = <67>,
<68>;
};
@@ -844,7 +841,6 @@
reg-names = "tx",
"rx";
- interrupt-parent = <&intc>;
interrupts = <69>,
<70>;
};
diff --git a/arch/arm/boot/dts/omap3430-sdp.dts b/arch/arm/boot/dts/omap3430-sdp.dts
index abd6921143be..908951eb5943 100644
--- a/arch/arm/boot/dts/omap3430-sdp.dts
+++ b/arch/arm/boot/dts/omap3430-sdp.dts
@@ -33,7 +33,7 @@
&mmc1 {
vmmc-supply = <&vmmc1>;
- vmmc_aux-supply = <&vsim>;
+ vqmmc-supply = <&vsim>;
/*
* S6-3 must be in ON position for 8 bit mode to function
* Else, use 4 bit mode
diff --git a/arch/arm/boot/dts/omap4-droid4-xt894.dts b/arch/arm/boot/dts/omap4-droid4-xt894.dts
index 89eb607f4a9e..8b93d37310f2 100644
--- a/arch/arm/boot/dts/omap4-droid4-xt894.dts
+++ b/arch/arm/boot/dts/omap4-droid4-xt894.dts
@@ -129,6 +129,34 @@
output-high;
line-name = "touchscreen-reset";
};
+
+ pwm8: dmtimer-pwm-8 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&vibrator_direction_pin>;
+
+ compatible = "ti,omap-dmtimer-pwm";
+ #pwm-cells = <3>;
+ ti,timers = <&timer8>;
+ ti,clock-source = <0x01>;
+ };
+
+ pwm9: dmtimer-pwm-9 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&vibrator_enable_pin>;
+
+ compatible = "ti,omap-dmtimer-pwm";
+ #pwm-cells = <3>;
+ ti,timers = <&timer9>;
+ ti,clock-source = <0x01>;
+ };
+
+ vibrator {
+ compatible = "pwm-vibrator";
+ pwms = <&pwm9 0 10000000 0>, <&pwm8 0 10000000 0>;
+ pwm-names = "enable", "direction";
+ direction-duty-cycle-ns = <10000000>;
+ };
+
};
&dsi1 {
@@ -301,7 +329,7 @@
#address-cells = <1>;
#size-cells = <0>;
wlcore: wlcore@2 {
- compatible = "ti,wl1283";
+ compatible = "ti,wl1285", "ti,wl1283";
reg = <2>;
interrupt-parent = <&gpio4>;
interrupts = <4 IRQ_TYPE_LEVEL_HIGH>; /* gpio100 */
@@ -348,6 +376,17 @@
interrupt-names = "irq", "wakeup";
wakeup-source;
};
+
+ isl29030@44 {
+ compatible = "isil,isl29030";
+ reg = <0x44>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&als_proximity_pins>;
+
+ interrupt-parent = <&gpio6>;
+ interrupts = <17 IRQ_TYPE_LEVEL_LOW>; /* gpio177 */
+ };
};
&omap4_pmx_core {
@@ -362,7 +401,7 @@
/* hdmi_cec.hdmi_cec, hdmi_scl.hdmi_scl, hdmi_sda.hdmi_sda */
dss_hdmi_pins: pinmux_dss_hdmi_pins {
pinctrl-single,pins = <
- OMAP4_IOPAD(0x09a, PIN_INPUT_PULLUP | MUX_MODE0)
+ OMAP4_IOPAD(0x09a, PIN_INPUT | MUX_MODE0)
OMAP4_IOPAD(0x09c, PIN_INPUT | MUX_MODE0)
OMAP4_IOPAD(0x09e, PIN_INPUT | MUX_MODE0)
>;
@@ -395,6 +434,12 @@
>;
};
+ als_proximity_pins: pinmux_als_proximity_pins {
+ pinctrl-single,pins = <
+ OMAP4_IOPAD(0x18c, PIN_INPUT_PULLUP | MUX_MODE3)
+ >;
+ };
+
usb_ulpi_pins: pinmux_usb_ulpi_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x196, MUX_MODE7)
@@ -453,6 +498,15 @@
OMAP4_IOPAD(0x1c8, PIN_INPUT_PULLUP | MUX_MODE7)
>;
};
+
+ uart4_pins: pinmux_uart4_pins {
+ pinctrl-single,pins = <
+ OMAP4_IOPAD(0x15c, PIN_INPUT | MUX_MODE0) /* uart4_rx */
+ OMAP4_IOPAD(0x15e, PIN_OUTPUT | MUX_MODE0) /* uart4_tx */
+ OMAP4_IOPAD(0x110, PIN_INPUT_PULLUP | MUX_MODE5) /* uart4_cts */
+ OMAP4_IOPAD(0x112, PIN_OUTPUT_PULLUP | MUX_MODE5) /* uart4_rts */
+ >;
+ };
};
&omap4_pmx_wkup {
@@ -462,6 +516,18 @@
OMAP4_IOPAD(0x040, PIN_OUTPUT_PULLDOWN | MUX_MODE3)
>;
};
+
+ vibrator_direction_pin: pinmux_vibrator_direction_pin {
+ pinctrl-single,pins = <
+ OMAP4_IOPAD(0x1ce, PIN_OUTPUT | MUX_MODE1) /* dmtimer8_pwm_evt (gpio_27) */
+ >;
+ };
+
+ vibrator_enable_pin: pinmux_vibrator_enable_pin {
+ pinctrl-single,pins = <
+ OMAP4_IOPAD(0X1d0, PIN_OUTPUT | MUX_MODE1) /* dmtimer9_pwm_evt (gpio_28) */
+ >;
+ };
};
&uart3 {
@@ -469,6 +535,17 @@
&omap4_pmx_core 0x17c>;
};
+&uart4 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart4_pins>;
+
+ bluetooth {
+ compatible = "ti,wl1285-st";
+ enable-gpios = <&gpio6 14 GPIO_ACTIVE_HIGH>; /* gpio 174 */
+ max-speed = <3686400>;
+ };
+};
+
&usbhsehci {
phys = <&hsusb1_phy>;
};
diff --git a/arch/arm/boot/dts/omap4-duovero-parlor.dts b/arch/arm/boot/dts/omap4-duovero-parlor.dts
index 1b825128a7b9..a9a584b5b955 100644
--- a/arch/arm/boot/dts/omap4-duovero-parlor.dts
+++ b/arch/arm/boot/dts/omap4-duovero-parlor.dts
@@ -100,7 +100,7 @@
dss_hdmi_pins: pinmux_dss_hdmi_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x098, PIN_INPUT | MUX_MODE3) /* hdmi_hpd.gpio_63 */
- OMAP4_IOPAD(0x09a, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_cec.hdmi_cec */
+ OMAP4_IOPAD(0x09a, PIN_INPUT | MUX_MODE0) /* hdmi_cec.hdmi_cec */
OMAP4_IOPAD(0x09c, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_ddc_scl.hdmi_ddc_scl */
OMAP4_IOPAD(0x09e, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_ddc_sda.hdmi_ddc_sda */
>;
diff --git a/arch/arm/boot/dts/omap4-duovero.dtsi b/arch/arm/boot/dts/omap4-duovero.dtsi
index ec0bd9779e1a..6e6810c258eb 100644
--- a/arch/arm/boot/dts/omap4-duovero.dtsi
+++ b/arch/arm/boot/dts/omap4-duovero.dtsi
@@ -12,6 +12,10 @@
model = "Gumstix Duovero";
compatible = "gumstix,omap4-duovero", "ti,omap4430", "ti,omap4";
+ chosen {
+ stdout-path = &uart3;
+ };
+
memory@80000000 {
device_type = "memory";
reg = <0x80000000 0x40000000>; /* 1 GB */
diff --git a/arch/arm/boot/dts/omap4-panda-common.dtsi b/arch/arm/boot/dts/omap4-panda-common.dtsi
index edbc4090297d..2b48e51c372a 100644
--- a/arch/arm/boot/dts/omap4-panda-common.dtsi
+++ b/arch/arm/boot/dts/omap4-panda-common.dtsi
@@ -267,7 +267,7 @@
dss_hdmi_pins: pinmux_dss_hdmi_pins {
pinctrl-single,pins = <
- OMAP4_IOPAD(0x09a, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_cec.hdmi_cec */
+ OMAP4_IOPAD(0x09a, PIN_INPUT | MUX_MODE0) /* hdmi_cec.hdmi_cec */
OMAP4_IOPAD(0x09c, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_scl.hdmi_scl */
OMAP4_IOPAD(0x09e, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_sda.hdmi_sda */
>;
diff --git a/arch/arm/boot/dts/omap4-sdp-es23plus.dts b/arch/arm/boot/dts/omap4-sdp-es23plus.dts
index b4d19a7ae393..3d3140fd9659 100644
--- a/arch/arm/boot/dts/omap4-sdp-es23plus.dts
+++ b/arch/arm/boot/dts/omap4-sdp-es23plus.dts
@@ -10,7 +10,7 @@
/* SDP boards with 4430 ES2.3+ or 4460 have external pullups on SCL & SDA */
&dss_hdmi_pins {
pinctrl-single,pins = <
- OMAP4_IOPAD(0x09a, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_cec.hdmi_cec */
+ OMAP4_IOPAD(0x09a, PIN_INPUT | MUX_MODE0) /* hdmi_cec.hdmi_cec */
OMAP4_IOPAD(0x09c, PIN_INPUT | MUX_MODE0) /* hdmi_scl.hdmi_scl */
OMAP4_IOPAD(0x09e, PIN_INPUT | MUX_MODE0) /* hdmi_sda.hdmi_sda */
>;
diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index d728ec963111..280d92d42bf1 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -290,7 +290,7 @@
dss_hdmi_pins: pinmux_dss_hdmi_pins {
pinctrl-single,pins = <
- OMAP4_IOPAD(0x09a, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_cec.hdmi_cec */
+ OMAP4_IOPAD(0x09a, PIN_INPUT | MUX_MODE0) /* hdmi_cec.hdmi_cec */
OMAP4_IOPAD(0x09c, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_scl.hdmi_scl */
OMAP4_IOPAD(0x09e, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_sda.hdmi_sda */
>;
diff --git a/arch/arm/boot/dts/omap4-var-om44customboard.dtsi b/arch/arm/boot/dts/omap4-var-om44customboard.dtsi
index 74940b6d7719..676d8dd0624a 100644
--- a/arch/arm/boot/dts/omap4-var-om44customboard.dtsi
+++ b/arch/arm/boot/dts/omap4-var-om44customboard.dtsi
@@ -122,7 +122,7 @@
dss_hdmi_pins: pinmux_dss_hdmi_pins {
pinctrl-single,pins = <
- OMAP4_IOPAD(0x09a, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_cec.hdmi_cec */
+ OMAP4_IOPAD(0x09a, PIN_INPUT | MUX_MODE0) /* hdmi_cec.hdmi_cec */
OMAP4_IOPAD(0x09c, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_scl.hdmi_scl */
OMAP4_IOPAD(0x09e, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_sda.hdmi_sda */
>;
diff --git a/arch/arm/boot/dts/omap4-var-som-om44.dtsi b/arch/arm/boot/dts/omap4-var-som-om44.dtsi
index 758b6eb7ae43..6500bfc8d130 100644
--- a/arch/arm/boot/dts/omap4-var-som-om44.dtsi
+++ b/arch/arm/boot/dts/omap4-var-som-om44.dtsi
@@ -241,7 +241,7 @@
};
eeprom@50 {
- compatible = "microchip,24c32";
+ compatible = "microchip,24c32", "atmel,24c32";
reg = <0x50>;
};
};
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 578c53f08309..64d00f5893a6 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -900,15 +900,24 @@
ctrl-module = <&omap_control_usbotg>;
};
- aes: aes@4b501000 {
+ aes1: aes@4b501000 {
compatible = "ti,omap4-aes";
- ti,hwmods = "aes";
+ ti,hwmods = "aes1";
reg = <0x4b501000 0xa0>;
interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&sdma 111>, <&sdma 110>;
dma-names = "tx", "rx";
};
+ aes2: aes@4b701000 {
+ compatible = "ti,omap4-aes";
+ ti,hwmods = "aes2";
+ reg = <0x4b701000 0xa0>;
+ interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&sdma 114>, <&sdma 113>;
+ dma-names = "tx", "rx";
+ };
+
des: des@480a5000 {
compatible = "ti,omap4-des";
ti,hwmods = "des";
@@ -918,6 +927,15 @@
dma-names = "tx", "rx";
};
+ sham: sham@4b100000 {
+ compatible = "ti,omap4-sham";
+ ti,hwmods = "sham";
+ reg = <0x4b100000 0x300>;
+ interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&sdma 119>;
+ dma-names = "rx";
+ };
+
abb_mpu: regulator-abb-mpu {
compatible = "ti,abb-v2";
regulator-name = "abb_mpu";
diff --git a/arch/arm/boot/dts/omap44xx-clocks.dtsi b/arch/arm/boot/dts/omap44xx-clocks.dtsi
index 9573b37fbaa7..05732ed4f50f 100644
--- a/arch/arm/boot/dts/omap44xx-clocks.dtsi
+++ b/arch/arm/boot/dts/omap44xx-clocks.dtsi
@@ -357,6 +357,8 @@
compatible = "ti,omap4-dpll-clock";
clocks = <&sys_clkin_ck>, <&iva_hsd_byp_clk_mux_ck>;
reg = <0x01a0>, <0x01a4>, <0x01ac>, <0x01a8>;
+ assigned-clocks = <&dpll_iva_ck>;
+ assigned-clock-rates = <931200000>;
};
dpll_iva_x2_ck: dpll_iva_x2_ck {
@@ -374,6 +376,8 @@
reg = <0x01b8>;
ti,index-starts-at-one;
ti,invert-autoidle-bit;
+ assigned-clocks = <&dpll_iva_m4x2_ck>;
+ assigned-clock-rates = <465600000>;
};
dpll_iva_m5x2_ck: dpll_iva_m5x2_ck@1bc {
@@ -385,6 +389,8 @@
reg = <0x01bc>;
ti,index-starts-at-one;
ti,invert-autoidle-bit;
+ assigned-clocks = <&dpll_iva_m5x2_ck>;
+ assigned-clock-rates = <266100000>;
};
dpll_mpu_ck: dpll_mpu_ck@160 {
@@ -969,22 +975,6 @@
ti,max-div = <2>;
};
- aes1_fck: aes1_fck@15a0 {
- #clock-cells = <0>;
- compatible = "ti,gate-clock";
- clocks = <&l3_div_ck>;
- ti,bit-shift = <1>;
- reg = <0x15a0>;
- };
-
- aes2_fck: aes2_fck@15a8 {
- #clock-cells = <0>;
- compatible = "ti,gate-clock";
- clocks = <&l3_div_ck>;
- ti,bit-shift = <1>;
- reg = <0x15a8>;
- };
-
dss_sys_clk: dss_sys_clk@1120 {
#clock-cells = <0>;
compatible = "ti,gate-clock";
diff --git a/arch/arm/boot/dts/omap5-board-common.dtsi b/arch/arm/boot/dts/omap5-board-common.dtsi
index 4caadb253249..7824b2631cb6 100644
--- a/arch/arm/boot/dts/omap5-board-common.dtsi
+++ b/arch/arm/boot/dts/omap5-board-common.dtsi
@@ -290,7 +290,7 @@
dss_hdmi_pins: pinmux_dss_hdmi_pins {
pinctrl-single,pins = <
- OMAP5_IOPAD(0x13c, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_cec.hdmi_cec */
+ OMAP5_IOPAD(0x13c, PIN_INPUT | MUX_MODE0) /* hdmi_cec.hdmi_cec */
OMAP5_IOPAD(0x140, PIN_INPUT | MUX_MODE0) /* hdmi_ddc_scl.hdmi_ddc_scl */
OMAP5_IOPAD(0x142, PIN_INPUT | MUX_MODE0) /* hdmi_ddc_sda.hdmi_ddc_sda */
>;
diff --git a/arch/arm/boot/dts/omap5-cm-t54.dts b/arch/arm/boot/dts/omap5-cm-t54.dts
index b153f604932a..552a5c4c5942 100644
--- a/arch/arm/boot/dts/omap5-cm-t54.dts
+++ b/arch/arm/boot/dts/omap5-cm-t54.dts
@@ -266,7 +266,7 @@
dss_hdmi_pins: pinmux_dss_hdmi_pins {
pinctrl-single,pins = <
- OMAP5_IOPAD(0x013c, PIN_INPUT_PULLUP | MUX_MODE0) /* hdmi_cec */
+ OMAP5_IOPAD(0x013c, PIN_INPUT | MUX_MODE0) /* hdmi_cec */
OMAP5_IOPAD(0x0140, PIN_INPUT | MUX_MODE0) /* hdmi_ddc_scl */
OMAP5_IOPAD(0x0142, PIN_INPUT | MUX_MODE0) /* hdmi_ddc_sda */
>;
@@ -404,7 +404,7 @@
clock-frequency = <400000>;
at24@50 {
- compatible = "at24,24c02";
+ compatible = "atmel,24c02";
pagesize = <16>;
reg = <0x50>;
};
diff --git a/arch/arm/boot/dts/omap5-sbc-t54.dts b/arch/arm/boot/dts/omap5-sbc-t54.dts
index 337bbbc01a35..7b8810d13257 100644
--- a/arch/arm/boot/dts/omap5-sbc-t54.dts
+++ b/arch/arm/boot/dts/omap5-sbc-t54.dts
@@ -44,7 +44,7 @@
clock-frequency = <400000>;
at24@50 {
- compatible = "at24,24c02";
+ compatible = "atmel,24c02";
pagesize = <16>;
reg = <0x50>;
};
diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts
index 0d42c46f13e7..ec2c8baef62a 100644
--- a/arch/arm/boot/dts/omap5-uevm.dts
+++ b/arch/arm/boot/dts/omap5-uevm.dts
@@ -137,6 +137,13 @@
};
};
+&mmc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc1_pins>;
+
+ cd-gpios = <&gpio5 24 GPIO_ACTIVE_LOW>; /* gpio5_152 */
+};
+
&omap5_pmx_core {
evm_keys_pins: pinmux_evm_keys_gpio_pins {
pinctrl-single,pins = <
@@ -150,6 +157,12 @@
OMAP5_IOPAD(0x1c8, PIN_INPUT | MUX_MODE0) /* i2c5_sda */
>;
};
+
+ mmc1_pins: pinmux_mmc1_pins {
+ pinctrl-single,pins = <
+ OMAP5_IOPAD(0x1d4, PIN_INPUT_PULLUP | MUX_MODE6) /* gpio5_152 */
+ >;
+ };
};
&tpd12s015 {
diff --git a/arch/arm/boot/dts/omap54xx-clocks.dtsi b/arch/arm/boot/dts/omap54xx-clocks.dtsi
index 4899c2359d0a..529193442620 100644
--- a/arch/arm/boot/dts/omap54xx-clocks.dtsi
+++ b/arch/arm/boot/dts/omap54xx-clocks.dtsi
@@ -315,6 +315,8 @@
compatible = "ti,omap4-dpll-clock";
clocks = <&sys_clkin>, <&dpll_iva_byp_mux>;
reg = <0x01a0>, <0x01a4>, <0x01ac>, <0x01a8>;
+ assigned-clocks = <&dpll_iva_ck>;
+ assigned-clock-rates = <1165000000>;
};
dpll_iva_x2_ck: dpll_iva_x2_ck {
@@ -330,6 +332,8 @@
ti,max-div = <63>;
reg = <0x01b8>;
ti,index-starts-at-one;
+ assigned-clocks = <&dpll_iva_h11x2_ck>;
+ assigned-clock-rates = <465920000>;
};
dpll_iva_h12x2_ck: dpll_iva_h12x2_ck@1bc {
@@ -339,6 +343,8 @@
ti,max-div = <63>;
reg = <0x01bc>;
ti,index-starts-at-one;
+ assigned-clocks = <&dpll_iva_h12x2_ck>;
+ assigned-clock-rates = <388300000>;
};
mpu_dpll_hs_clk_div: mpu_dpll_hs_clk_div {
diff --git a/arch/arm/boot/dts/owl-s500-guitar-bb-rev-b.dts b/arch/arm/boot/dts/owl-s500-guitar-bb-rev-b.dts
new file mode 100644
index 000000000000..521463d4cac6
--- /dev/null
+++ b/arch/arm/boot/dts/owl-s500-guitar-bb-rev-b.dts
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2016-2017 Andreas Färber
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+/dts-v1/;
+
+#include "owl-s500-guitar.dtsi"
+
+/ {
+ compatible = "lemaker,guitar-bb-rev-b", "lemaker,guitar", "actions,s500";
+ model = "LeMaker Guitar Base Board rev. B";
+
+ aliases {
+ serial3 = &uart3;
+ };
+
+ chosen {
+ stdout-path = "serial3:115200n8";
+ };
+};
+
+&uart3 {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/owl-s500-guitar.dtsi b/arch/arm/boot/dts/owl-s500-guitar.dtsi
new file mode 100644
index 000000000000..079b2c02cc13
--- /dev/null
+++ b/arch/arm/boot/dts/owl-s500-guitar.dtsi
@@ -0,0 +1,22 @@
+/*
+ * LeMaker Guitar SoM
+ *
+ * Copyright (c) 2016-2017 Andreas Färber
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+#include "owl-s500.dtsi"
+
+/ {
+ compatible = "lemaker,guitar", "actions,s500";
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x40000000>;
+ };
+};
+
+&timer {
+ clocks = <&hosc>;
+};
diff --git a/arch/arm/boot/dts/owl-s500.dtsi b/arch/arm/boot/dts/owl-s500.dtsi
new file mode 100644
index 000000000000..51a48741d4c0
--- /dev/null
+++ b/arch/arm/boot/dts/owl-s500.dtsi
@@ -0,0 +1,186 @@
+/*
+ * Actions Semi S500 SoC
+ *
+ * Copyright (c) 2016-2017 Andreas Färber
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ compatible = "actions,s500";
+ interrupt-parent = <&gic>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ aliases {
+ };
+
+ chosen {
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ reg = <0x0>;
+ enable-method = "actions,s500-smp";
+ };
+
+ cpu1: cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ reg = <0x1>;
+ enable-method = "actions,s500-smp";
+ };
+
+ cpu2: cpu@2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ reg = <0x2>;
+ enable-method = "actions,s500-smp";
+ };
+
+ cpu3: cpu@3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ reg = <0x3>;
+ enable-method = "actions,s500-smp";
+ };
+ };
+
+ arm-pmu {
+ compatible = "arm,cortex-a9-pmu";
+ interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
+ };
+
+ hosc: hosc {
+ compatible = "fixed-clock";
+ clock-frequency = <24000000>;
+ #clock-cells = <0>;
+ };
+
+ soc {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ scu: scu@b0020000 {
+ compatible = "arm,cortex-a9-scu";
+ reg = <0xb0020000 0x100>;
+ };
+
+ global_timer: timer@b0020200 {
+ compatible = "arm,cortex-a9-global-timer";
+ reg = <0xb0020200 0x100>;
+ interrupts = <GIC_PPI 0 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_EDGE_RISING)>;
+ status = "disabled";
+ };
+
+ twd_timer: timer@b0020600 {
+ compatible = "arm,cortex-a9-twd-timer";
+ reg = <0xb0020600 0x20>;
+ interrupts = <GIC_PPI 2 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_EDGE_RISING)>;
+ status = "disabled";
+ };
+
+ twd_wdt: wdt@b0020620 {
+ compatible = "arm,cortex-a9-twd-wdt";
+ reg = <0xb0020620 0xe0>;
+ interrupts = <GIC_PPI 3 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_EDGE_RISING)>;
+ status = "disabled";
+ };
+
+ gic: interrupt-controller@b0021000 {
+ compatible = "arm,cortex-a9-gic";
+ reg = <0xb0021000 0x1000>,
+ <0xb0020100 0x0100>;
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ };
+
+ l2: cache-controller@b0022000 {
+ compatible = "arm,pl310-cache";
+ reg = <0xb0022000 0x1000>;
+ cache-unified;
+ cache-level = <2>;
+ interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
+ arm,tag-latency = <3 3 2>;
+ arm,data-latency = <5 3 3>;
+ };
+
+ uart0: serial@b0120000 {
+ compatible = "actions,s500-uart", "actions,owl-uart";
+ reg = <0xb0120000 0x2000>;
+ interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ uart1: serial@b0122000 {
+ compatible = "actions,s500-uart", "actions,owl-uart";
+ reg = <0xb0122000 0x2000>;
+ interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ uart2: serial@b0124000 {
+ compatible = "actions,s500-uart", "actions,owl-uart";
+ reg = <0xb0124000 0x2000>;
+ interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ uart3: serial@b0126000 {
+ compatible = "actions,s500-uart", "actions,owl-uart";
+ reg = <0xb0126000 0x2000>;
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ uart4: serial@b0128000 {
+ compatible = "actions,s500-uart", "actions,owl-uart";
+ reg = <0xb0128000 0x2000>;
+ interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ uart5: serial@b012a000 {
+ compatible = "actions,s500-uart", "actions,owl-uart";
+ reg = <0xb012a000 0x2000>;
+ interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ uart6: serial@b012c000 {
+ compatible = "actions,s500-uart", "actions,owl-uart";
+ reg = <0xb012c000 0x2000>;
+ interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ timer: timer@b0168000 {
+ compatible = "actions,s500-timer";
+ reg = <0xb0168000 0x8000>;
+ interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "2hz0", "2hz1", "timer0", "timer1";
+ };
+
+ sps: power-controller@b01b0100 {
+ compatible = "actions,s500-sps";
+ reg = <0xb01b0100 0x100>;
+ #power-domain-cells = <1>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/pm9g45.dts b/arch/arm/boot/dts/pm9g45.dts
index 0abd7bf17568..3139221737ee 100644
--- a/arch/arm/boot/dts/pm9g45.dts
+++ b/arch/arm/boot/dts/pm9g45.dts
@@ -37,12 +37,10 @@
};
pinctrl@fffff200 {
-
- board {
- pinctrl_board_nand: nand0-board {
+ nand {
+ pinctrl_nand_rb: nand-rb-0 {
atmel,pins =
- <AT91_PIOD 3 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP /* PD3 gpio RDY pin pull_up*/
- AT91_PIOC 14 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>; /* PC14 gpio enable pin pull_up */
+ <AT91_PIOD 3 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
};
};
@@ -71,50 +69,61 @@
phy-mode = "rmii";
status = "okay";
};
-
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "soft";
- nand-on-flash-bbt;
- pinctrl-0 = <&pinctrl_board_nand>;
-
- gpios = <&pioD 3 GPIO_ACTIVE_HIGH
- &pioC 14 GPIO_ACTIVE_HIGH
- 0
- >;
-
+ ebi: ebi@10000000 {
status = "okay";
- at91bootstrap@0 {
- label = "at91bootstrap";
- reg = <0x0 0x20000>;
- };
-
- barebox@20000 {
- label = "barebox";
- reg = <0x20000 0x40000>;
- };
-
- bareboxenv@60000 {
- label = "bareboxenv";
- reg = <0x60000 0x1A0000>;
- };
-
- kernel@200000 {
- label = "bareboxenv2";
- reg = <0x200000 0x300000>;
- };
-
- kernel@500000 {
- label = "root";
- reg = <0x500000 0x400000>;
- };
-
- data@900000 {
- label = "data";
- reg = <0x900000 0x8340000>;
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_cs &pinctrl_nand_rb>;
+ pinctrl-names = "default";
+
+ nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ rb-gpios = <&pioD 3 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&pioC 14 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "soft";
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x20000>;
+ };
+
+ barebox@20000 {
+ label = "barebox";
+ reg = <0x20000 0x40000>;
+ };
+
+ bareboxenv@60000 {
+ label = "bareboxenv";
+ reg = <0x60000 0x1A0000>;
+ };
+
+ kernel@200000 {
+ label = "bareboxenv2";
+ reg = <0x200000 0x300000>;
+ };
+
+ kernel@500000 {
+ label = "root";
+ reg = <0x500000 0x400000>;
+ };
+
+ data@900000 {
+ label = "data";
+ reg = <0x900000 0x8340000>;
+ };
+ };
+ };
};
};
diff --git a/arch/arm/boot/dts/pxa25x.dtsi b/arch/arm/boot/dts/pxa25x.dtsi
index f9f4726396a0..95d59be97213 100644
--- a/arch/arm/boot/dts/pxa25x.dtsi
+++ b/arch/arm/boot/dts/pxa25x.dtsi
@@ -93,22 +93,22 @@
pxa250_opp_table: opp_table0 {
compatible = "operating-points-v2";
- opp@99532800 {
+ opp-99532800 {
opp-hz = /bits/ 64 <99532800>;
opp-microvolt = <1000000 950000 1650000>;
clock-latency-ns = <20>;
};
- opp@199065600 {
+ opp-199065600 {
opp-hz = /bits/ 64 <199065600>;
opp-microvolt = <1000000 950000 1650000>;
clock-latency-ns = <20>;
};
- opp@298598400 {
+ opp-298598400 {
opp-hz = /bits/ 64 <298598400>;
opp-microvolt = <1100000 1045000 1650000>;
clock-latency-ns = <20>;
};
- opp@398131200 {
+ opp-398131200 {
opp-hz = /bits/ 64 <398131200>;
opp-microvolt = <1300000 1235000 1650000>;
clock-latency-ns = <20>;
diff --git a/arch/arm/boot/dts/pxa27x.dtsi b/arch/arm/boot/dts/pxa27x.dtsi
index e0fab48ba6fa..5f1d6da02a4c 100644
--- a/arch/arm/boot/dts/pxa27x.dtsi
+++ b/arch/arm/boot/dts/pxa27x.dtsi
@@ -141,37 +141,37 @@
pxa270_opp_table: opp_table0 {
compatible = "operating-points-v2";
- opp@104000000 {
+ opp-104000000 {
opp-hz = /bits/ 64 <104000000>;
opp-microvolt = <900000 900000 1705000>;
clock-latency-ns = <20>;
};
- opp@156000000 {
+ opp-156000000 {
opp-hz = /bits/ 64 <156000000>;
opp-microvolt = <1000000 1000000 1705000>;
clock-latency-ns = <20>;
};
- opp@208000000 {
+ opp-208000000 {
opp-hz = /bits/ 64 <208000000>;
opp-microvolt = <1180000 1180000 1705000>;
clock-latency-ns = <20>;
};
- opp@312000000 {
+ opp-312000000 {
opp-hz = /bits/ 64 <312000000>;
opp-microvolt = <1250000 1250000 1705000>;
clock-latency-ns = <20>;
};
- opp@416000000 {
+ opp-416000000 {
opp-hz = /bits/ 64 <416000000>;
opp-microvolt = <1350000 1350000 1705000>;
clock-latency-ns = <20>;
};
- opp@520000000 {
+ opp-520000000 {
opp-hz = /bits/ 64 <520000000>;
opp-microvolt = <1450000 1450000 1705000>;
clock-latency-ns = <20>;
};
- opp@624000000 {
+ opp-624000000 {
opp-hz = /bits/ 64 <624000000>;
opp-microvolt = <1550000 1550000 1705000>;
clock-latency-ns = <20>;
diff --git a/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts b/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts
index 2da1413f5720..9d725f983282 100644
--- a/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts
+++ b/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts
@@ -23,6 +23,7 @@
#include <dt-bindings/input/input.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
+#include <dt-bindings/pinctrl/qcom,pmic-mpp.h>
#include "qcom-msm8660.dtsi"
/ {
@@ -83,6 +84,25 @@
};
};
+ /*
+ * Capella CM3605 light and proximity sensor mounted directly
+ * on the sensor board.
+ */
+ cm3605 {
+ compatible = "capella,cm3605";
+ vdd-supply = <&pm8058_l14>; // 2.85V
+ aset-gpios = <&pm8058_gpio 35 GPIO_ACTIVE_LOW>;
+ capella,aset-resistance-ohms = <100000>;
+ /* GPIO34 has interrupt 225 on the PM8058 */
+ /* Trig on both edges - getting close or far away */
+ interrupts-extended = <&pm8058 225 IRQ_TYPE_EDGE_BOTH>;
+ /* MPP05 analog input to the XOADC */
+ io-channels = <&xoadc 0x00 0x05>;
+ io-channel-names = "aout";
+ pinctrl-names = "default";
+ pinctrl-0 = <&dragon_cm3605_gpios>, <&dragon_cm3605_mpps>;
+ };
+
soc {
pinctrl@800000 {
/* eMMMC pins, all 8 data lines connected */
@@ -160,6 +180,19 @@
};
};
+ dragon_gsbi8_i2c_pins: gsbi8_i2c {
+ mux {
+ pins = "gpio64", "gpio65";
+ function = "gsbi8";
+ };
+ pinconf {
+ pins = "gpio64", "gpio65";
+ drive-strength = <16>;
+ /* These have external pull-up 2.2kOhm to 1.8V */
+ bias-disable;
+ };
+ };
+
dragon_gsbi12_i2c_pins: gsbi12_i2c {
mux {
pins = "gpio115", "gpio116";
@@ -317,6 +350,24 @@
power-source = <PM8058_GPIO_S3>;
};
};
+ dragon_cm3605_gpios: cm3605-gpios {
+ /* Pin 34 connected to the proxy IRQ */
+ pinconf_gpio34 {
+ pins = "gpio34";
+ function = "normal";
+ input-enable;
+ bias-disable;
+ power-source = <PM8058_GPIO_S3>;
+ };
+ /* Pin 35 connected to ASET */
+ pinconf_gpio35 {
+ pins = "gpio35";
+ function = "normal";
+ output-high;
+ bias-disable;
+ power-source = <PM8058_GPIO_S3>;
+ };
+ };
dragon_veth_gpios: veth-gpios {
pinconf {
pins = "gpio40";
@@ -327,6 +378,47 @@
};
};
+ mpps@50 {
+ dragon_cm3605_mpps: cm3605-mpps {
+ pinconf {
+ pins = "mpp5";
+ function = "analog";
+ input-enable;
+ bias-high-impedance;
+ /* Let's use channel 5 */
+ qcom,amux-route = <PMIC_MPP_AMUX_ROUTE_CH5>;
+ power-source = <PM8058_GPIO_S3>;
+ };
+ };
+ };
+
+ xoadc@197 {
+ /* Reference voltage 2.2 V */
+ xoadc-ref-supply = <&pm8058_l18>;
+
+ /* Board-specific channels */
+ mpp5@05 {
+ /* Connected to AOUT of ALS sensor */
+ reg = <0x00 0x05>;
+ };
+ mpp6@06 {
+ /* Connected to test point TP43 */
+ reg = <0x00 0x06>;
+ };
+ mpp7@07 {
+ /* Connected to battery thermistor */
+ reg = <0x00 0x07>;
+ };
+ mpp8@08 {
+ /* Connected to battery ID detector */
+ reg = <0x00 0x08>;
+ };
+ mpp9@09 {
+ /* Connected to XO thermistor */
+ reg = <0x00 0x09>;
+ };
+ };
+
led@48 {
/*
* The keypad LED @0x48 is routed to
@@ -340,6 +432,7 @@
reg = <0x48>;
label = "pm8058:infrared:proximitysensor";
default-state = "off";
+ linux,default-trigger = "cm3605";
};
led@131 {
compatible = "qcom,pm8058-led";
@@ -368,6 +461,42 @@
};
};
+ gsbi@19800000 {
+ status = "ok";
+ qcom,mode = <GSBI_PROT_I2C>;
+
+ i2c@19880000 {
+ status = "ok";
+ pinctrl-names = "default";
+ pinctrl-0 = <&dragon_gsbi8_i2c_pins>;
+
+ eeprom@52 {
+ /* A 16KiB Platform ID EEPROM on the CPU carrier board */
+ compatible = "atmel,24c128";
+ reg = <0x52>;
+ vcc-supply = <&pm8058_s3>;
+ pagesize = <64>;
+ };
+ wm8903: wm8903@1a {
+ /* This Woolfson Micro device has an unrouted interrupt line */
+ compatible = "wlf,wm8903";
+ reg = <0x1a>;
+
+ AVDD-supply = <&pm8058_l16>;
+ CPVDD-supply = <&pm8058_l16>;
+ DBVDD-supply = <&pm8058_s3>;
+ DCVDD-supply = <&pm8058_l0>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ micdet-cfg = <0>;
+ micdet-delay = <100>;
+ gpio-cfg = <0xffffffff 0xffffffff 0 0xffffffff 0xffffffff>;
+ };
+ };
+ };
+
gsbi@19c00000 {
status = "ok";
qcom,mode = <GSBI_PROT_I2C_UART>;
diff --git a/arch/arm/boot/dts/qcom-apq8064-arrow-sd-600eval.dts b/arch/arm/boot/dts/qcom-apq8064-arrow-sd-600eval.dts
index 8f5de029bca9..f245064f320e 100644
--- a/arch/arm/boot/dts/qcom-apq8064-arrow-sd-600eval.dts
+++ b/arch/arm/boot/dts/qcom-apq8064-arrow-sd-600eval.dts
@@ -320,43 +320,37 @@
};
/* OTG */
- phy@12500000 {
- status = "okay";
- dr_mode = "peripheral";
- vddcx-supply = <&pm8921_s3>;
- v3p3-supply = <&pm8921_l3>;
- v1p8-supply = <&pm8921_l4>;
- };
-
- phy@12520000 {
- status = "okay";
- vddcx-supply = <&pm8921_s3>;
- v3p3-supply = <&pm8921_l3>;
- v1p8-supply = <&pm8921_l23>;
- };
-
- phy@12530000 {
- status = "okay";
- vddcx-supply = <&pm8921_s3>;
- v3p3-supply = <&pm8921_l3>;
- v1p8-supply = <&pm8921_l23>;
- };
-
- gadget@12500000 {
- status = "okay";
- };
-
- /* OTG */
usb@12500000 {
status = "okay";
+ dr_mode = "peripheral";
+ ulpi {
+ phy {
+ v3p3-supply = <&pm8921_l3>;
+ v1p8-supply = <&pm8921_l4>;
+ };
+ };
};
usb@12520000 {
status = "okay";
+ dr_mode = "otg";
+ ulpi {
+ phy {
+ v3p3-supply = <&pm8921_l3>;
+ v1p8-supply = <&pm8921_l23>;
+ };
+ };
};
usb@12530000 {
status = "okay";
+ dr_mode = "otg";
+ ulpi {
+ phy {
+ v3p3-supply = <&pm8921_l3>;
+ v1p8-supply = <&pm8921_l23>;
+ };
+ };
};
amba {
diff --git a/arch/arm/boot/dts/qcom-apq8064-asus-nexus7-flo.dts b/arch/arm/boot/dts/qcom-apq8064-asus-nexus7-flo.dts
index e39440a86739..3483a66e44c1 100644
--- a/arch/arm/boot/dts/qcom-apq8064-asus-nexus7-flo.dts
+++ b/arch/arm/boot/dts/qcom-apq8064-asus-nexus7-flo.dts
@@ -321,21 +321,15 @@
};
/* OTG */
- phy@12500000 {
- status = "okay";
- vddcx-supply = <&pm8921_s3>;
- v3p3-supply = <&pm8921_l3>;
- v1p8-supply = <&pm8921_l4>;
- dr_mode = "otg";
- };
-
- gadget@12500000 {
- status = "okay";
- };
-
- /* OTG */
usb@12500000 {
status = "okay";
+ dr_mode = "otg";
+ ulpi {
+ phy {
+ v3p3-supply = <&pm8921_l3>;
+ v1p8-supply = <&pm8921_l4>;
+ };
+ };
};
amba {
diff --git a/arch/arm/boot/dts/qcom-apq8064-cm-qs600.dts b/arch/arm/boot/dts/qcom-apq8064-cm-qs600.dts
index 35f1d46edded..5b151e425530 100644
--- a/arch/arm/boot/dts/qcom-apq8064-cm-qs600.dts
+++ b/arch/arm/boot/dts/qcom-apq8064-cm-qs600.dts
@@ -150,42 +150,37 @@
};
/* OTG */
- usb1_phy: phy@12500000 {
- status = "okay";
- vddcx-supply = <&pm8921_s3>;
- v3p3-supply = <&pm8921_l3>;
- v1p8-supply = <&pm8921_l4>;
- };
-
- usb3_phy: phy@12520000 {
- status = "okay";
- vddcx-supply = <&pm8921_s3>;
- v3p3-supply = <&pm8921_l3>;
- v1p8-supply = <&pm8921_l23>;
- };
-
- usb4_phy: phy@12530000 {
- status = "okay";
- vddcx-supply = <&pm8921_s3>;
- v3p3-supply = <&pm8921_l3>;
- v1p8-supply = <&pm8921_l23>;
- };
-
- gadget1: gadget@12500000 {
- status = "ok";
- };
-
- /* OTG */
- usb1: usb@12500000 {
+ usb@12500000 {
status = "ok";
+ dr_mode = "otg";
+ ulpi {
+ phy {
+ v3p3-supply = <&pm8921_l3>;
+ v1p8-supply = <&pm8921_l4>;
+ };
+ };
};
- usb3: usb@12520000 {
+ usb@12520000 {
status = "okay";
+ dr_mode = "host";
+ ulpi {
+ phy {
+ v3p3-supply = <&pm8921_l3>;
+ v1p8-supply = <&pm8921_l23>;
+ };
+ };
};
- usb4: usb@12530000 {
+ usb@12530000 {
status = "okay";
+ dr_mode = "host";
+ ulpi {
+ phy {
+ v3p3-supply = <&pm8921_l3>;
+ v1p8-supply = <&pm8921_l23>;
+ };
+ };
};
/* on board fixed 3.3v supply */
diff --git a/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts b/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
index 881ce707311a..053b5bdd7808 100644
--- a/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
+++ b/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
@@ -244,42 +244,37 @@
};
/* OTG */
- usb1_phy: phy@12500000 {
- status = "okay";
- vddcx-supply = <&pm8921_s3>;
- v3p3-supply = <&pm8921_l3>;
- v1p8-supply = <&pm8921_l4>;
- };
-
- usb3_phy: phy@12520000 {
- status = "okay";
- vddcx-supply = <&pm8921_s3>;
- v3p3-supply = <&pm8921_l3>;
- v1p8-supply = <&pm8921_l23>;
- };
-
- usb4_phy: phy@12530000 {
- status = "okay";
- vddcx-supply = <&pm8921_s3>;
- v3p3-supply = <&pm8921_l3>;
- v1p8-supply = <&pm8921_l23>;
- };
-
- gadget1: gadget@12500000 {
- status = "okay";
- };
-
- /* OTG */
- usb1: usb@12500000 {
+ usb@12500000 {
status = "okay";
+ dr_mode = "otg";
+ ulpi {
+ phy {
+ v3p3-supply = <&pm8921_l3>;
+ v1p8-supply = <&pm8921_l4>;
+ };
+ };
};
- usb3: usb@12520000 {
+ usb@12520000 {
status = "okay";
+ dr_mode = "host";
+ ulpi {
+ phy {
+ v3p3-supply = <&pm8921_l3>;
+ v1p8-supply = <&pm8921_l23>;
+ };
+ };
};
- usb4: usb@12530000 {
+ usb@12530000 {
status = "okay";
+ dr_mode = "host";
+ ulpi {
+ phy {
+ v3p3-supply = <&pm8921_l3>;
+ v1p8-supply = <&pm8921_l23>;
+ };
+ };
};
pci@1b500000 {
diff --git a/arch/arm/boot/dts/qcom-apq8064-sony-xperia-yuga.dts b/arch/arm/boot/dts/qcom-apq8064-sony-xperia-yuga.dts
index a34ba3555454..88a9aff41e2f 100644
--- a/arch/arm/boot/dts/qcom-apq8064-sony-xperia-yuga.dts
+++ b/arch/arm/boot/dts/qcom-apq8064-sony-xperia-yuga.dts
@@ -349,15 +349,15 @@
};
};
- phy@12500000 {
- status = "okay";
- vddcx-supply = <&pm8921_s3>;
- v3p3-supply = <&pm8921_l3>;
- v1p8-supply = <&pm8921_l4>;
- };
-
- gadget@12500000 {
+ usb@12500000 {
status = "okay";
+ dr_mode = "otg";
+ ulpi {
+ phy {
+ v3p3-supply = <&pm8921_l3>;
+ v1p8-supply = <&pm8921_l4>;
+ };
+ };
};
gsbi@1a200000 {
diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom-apq8064.dtsi
index 14a6f5ed02de..f3db185a6809 100644
--- a/arch/arm/boot/dts/qcom-apq8064.dtsi
+++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
@@ -197,7 +197,7 @@
clock-frequency = <27000000>;
};
- sleep_clk {
+ sleep_clk: sleep_clk {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <32768>;
@@ -884,81 +884,97 @@
};
};
- usb1_phy: phy@12500000 {
- compatible = "qcom,usb-otg-ci";
- reg = <0x12500000 0x400>;
- interrupts = <GIC_SPI 100 IRQ_TYPE_NONE>;
- status = "disabled";
-
- clocks = <&gcc USB_HS1_XCVR_CLK>,
- <&gcc USB_HS1_H_CLK>;
- clock-names = "core", "iface";
-
- resets = <&gcc USB_HS1_RESET>;
- reset-names = "link";
- };
-
- usb3_phy: phy@12520000 {
- compatible = "qcom,usb-otg-ci";
- reg = <0x12520000 0x400>;
- interrupts = <GIC_SPI 188 IRQ_TYPE_NONE>;
- status = "disabled";
- dr_mode = "host";
-
- clocks = <&gcc USB_HS3_XCVR_CLK>,
- <&gcc USB_HS3_H_CLK>;
- clock-names = "core", "iface";
-
- resets = <&gcc USB_HS3_RESET>;
- reset-names = "link";
- };
-
- usb4_phy: phy@12530000 {
- compatible = "qcom,usb-otg-ci";
- reg = <0x12530000 0x400>;
- interrupts = <GIC_SPI 215 IRQ_TYPE_NONE>;
- status = "disabled";
- dr_mode = "host";
-
- clocks = <&gcc USB_HS4_XCVR_CLK>,
- <&gcc USB_HS4_H_CLK>;
- clock-names = "core", "iface";
-
- resets = <&gcc USB_HS4_RESET>;
- reset-names = "link";
- };
-
- gadget1: gadget@12500000 {
- compatible = "qcom,ci-hdrc";
- reg = <0x12500000 0x400>;
- status = "disabled";
- dr_mode = "peripheral";
- interrupts = <GIC_SPI 100 IRQ_TYPE_NONE>;
- usb-phy = <&usb1_phy>;
- };
-
usb1: usb@12500000 {
- compatible = "qcom,ehci-host";
- reg = <0x12500000 0x400>;
- interrupts = <GIC_SPI 100 IRQ_TYPE_NONE>;
- status = "disabled";
- usb-phy = <&usb1_phy>;
+ compatible = "qcom,ci-hdrc";
+ reg = <0x12500000 0x200>,
+ <0x12500200 0x200>;
+ interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&gcc USB_HS1_XCVR_CLK>, <&gcc USB_HS1_H_CLK>;
+ clock-names = "core", "iface";
+ assigned-clocks = <&gcc USB_HS1_XCVR_CLK>;
+ assigned-clock-rates = <60000000>;
+ resets = <&gcc USB_HS1_RESET>;
+ reset-names = "core";
+ phy_type = "ulpi";
+ ahb-burst-config = <0>;
+ phys = <&usb_hs1_phy>;
+ phy-names = "usb-phy";
+ status = "disabled";
+ #reset-cells = <1>;
+
+ ulpi {
+ usb_hs1_phy: phy {
+ compatible = "qcom,usb-hs-phy-apq8064",
+ "qcom,usb-hs-phy";
+ #phy-cells = <0>;
+ clocks = <&sleep_clk>, <&cxo_board>;
+ clock-names = "sleep", "ref";
+ resets = <&usb1 0>;
+ reset-names = "por";
+ };
+ };
};
usb3: usb@12520000 {
- compatible = "qcom,ehci-host";
- reg = <0x12520000 0x400>;
- interrupts = <GIC_SPI 188 IRQ_TYPE_NONE>;
- status = "disabled";
- usb-phy = <&usb3_phy>;
+ compatible = "qcom,ci-hdrc";
+ reg = <0x12520000 0x200>,
+ <0x12520200 0x200>;
+ interrupts = <GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&gcc USB_HS3_XCVR_CLK>, <&gcc USB_HS3_H_CLK>;
+ clock-names = "core", "iface";
+ assigned-clocks = <&gcc USB_HS3_XCVR_CLK>;
+ assigned-clock-rates = <60000000>;
+ resets = <&gcc USB_HS3_RESET>;
+ reset-names = "core";
+ phy_type = "ulpi";
+ ahb-burst-config = <0>;
+ phys = <&usb_hs3_phy>;
+ phy-names = "usb-phy";
+ status = "disabled";
+ #reset-cells = <1>;
+
+ ulpi {
+ usb_hs3_phy: phy {
+ compatible = "qcom,usb-hs-phy-apq8064",
+ "qcom,usb-hs-phy";
+ #phy-cells = <0>;
+ clocks = <&sleep_clk>, <&cxo_board>;
+ clock-names = "sleep", "ref";
+ resets = <&usb3 0>;
+ reset-names = "por";
+ };
+ };
};
usb4: usb@12530000 {
- compatible = "qcom,ehci-host";
- reg = <0x12530000 0x400>;
- interrupts = <GIC_SPI 215 IRQ_TYPE_NONE>;
- status = "disabled";
- usb-phy = <&usb4_phy>;
+ compatible = "qcom,ci-hdrc";
+ reg = <0x12530000 0x200>,
+ <0x12530200 0x200>;
+ interrupts = <GIC_SPI 215 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&gcc USB_HS4_XCVR_CLK>, <&gcc USB_HS4_H_CLK>;
+ clock-names = "core", "iface";
+ assigned-clocks = <&gcc USB_HS4_XCVR_CLK>;
+ assigned-clock-rates = <60000000>;
+ resets = <&gcc USB_HS4_RESET>;
+ reset-names = "core";
+ phy_type = "ulpi";
+ ahb-burst-config = <0>;
+ phys = <&usb_hs4_phy>;
+ phy-names = "usb-phy";
+ status = "disabled";
+ #reset-cells = <1>;
+
+ ulpi {
+ usb_hs4_phy: phy {
+ compatible = "qcom,usb-hs-phy-apq8064",
+ "qcom,usb-hs-phy";
+ #phy-cells = <0>;
+ clocks = <&sleep_clk>, <&cxo_board>;
+ clock-names = "sleep", "ref";
+ resets = <&usb4 0>;
+ reset-names = "por";
+ };
+ };
};
sata_phy0: phy@1b400000 {
diff --git a/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts b/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts
index ad51df27dfb7..32f3b81f609c 100644
--- a/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts
+++ b/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts
@@ -44,6 +44,26 @@
vqmmc-supply = <&pm8941_l13>;
};
+ usb@f9a55000 {
+ status = "ok";
+ phys = <&usb_hs2_phy>;
+ phy-select = <&tcsr 0xb000 1>;
+ extcon = <&smbb>, <&usb_id>;
+ vbus-supply = <&chg_otg>;
+ hnp-disable;
+ srp-disable;
+ adp-disable;
+ ulpi {
+ phy@b {
+ status = "ok";
+ v3p3-supply = <&pm8941_l24>;
+ v1p8-supply = <&pm8941_l6>;
+ extcon = <&smbb>;
+ qcom,init-seq = /bits/ 8 <0x1 0x63>;
+ };
+ };
+ };
+
pinctrl@fd510000 {
i2c11_pins: i2c11 {
diff --git a/arch/arm/boot/dts/qcom-ipq4019-ap.dk01.1.dtsi b/arch/arm/boot/dts/qcom-ipq4019-ap.dk01.1.dtsi
index b9457dd21a69..e413b21ee331 100644
--- a/arch/arm/boot/dts/qcom-ipq4019-ap.dk01.1.dtsi
+++ b/arch/arm/boot/dts/qcom-ipq4019-ap.dk01.1.dtsi
@@ -20,27 +20,12 @@
model = "Qualcomm Technologies, Inc. IPQ4019/AP-DK01.1";
compatible = "qcom,ipq4019";
- clocks {
- xo: xo {
- compatible = "fixed-clock";
- clock-frequency = <48000000>;
- #clock-cells = <0>;
- };
- };
-
soc {
-
-
- timer {
- compatible = "arm,armv7-timer";
- interrupts = <1 2 0xf08>,
- <1 3 0xf08>,
- <1 4 0xf08>,
- <1 1 0xf08>;
- clock-frequency = <48000000>;
+ rng@22000 {
+ status = "ok";
};
- pinctrl@0x01000000 {
+ pinctrl@1000000 {
serial_pins: serial_pinmux {
mux {
pins = "gpio60", "gpio61";
@@ -108,5 +93,13 @@
watchdog@b017000 {
status = "ok";
};
+
+ wifi@a000000 {
+ status = "ok";
+ };
+
+ wifi@a800000 {
+ status = "ok";
+ };
};
};
diff --git a/arch/arm/boot/dts/qcom-ipq4019.dtsi b/arch/arm/boot/dts/qcom-ipq4019.dtsi
index b7a24af8f47b..10d112a4078e 100644
--- a/arch/arm/boot/dts/qcom-ipq4019.dtsi
+++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi
@@ -96,6 +96,21 @@
clock-frequency = <32768>;
#clock-cells = <0>;
};
+
+ xo: xo {
+ compatible = "fixed-clock";
+ clock-frequency = <48000000>;
+ #clock-cells = <0>;
+ };
+ };
+
+ timer {
+ compatible = "arm,armv7-timer";
+ interrupts = <1 2 0xf08>,
+ <1 3 0xf08>,
+ <1 4 0xf08>,
+ <1 1 0xf08>;
+ clock-frequency = <48000000>;
};
soc {
@@ -119,7 +134,15 @@
reg = <0x1800000 0x60000>;
};
- tlmm: pinctrl@0x01000000 {
+ rng@22000 {
+ compatible = "qcom,prng";
+ reg = <0x22000 0x140>;
+ clocks = <&gcc GCC_PRNG_AHB_CLK>;
+ clock-names = "core";
+ status = "disabled";
+ };
+
+ tlmm: pinctrl@1000000 {
compatible = "qcom,ipq4019-pinctrl";
reg = <0x01000000 0x300000>;
gpio-controller;
@@ -154,10 +177,10 @@
i2c_0: i2c@78b7000 {
compatible = "qcom,i2c-qup-v2.2.1";
- reg = <0x78b7000 0x6000>;
+ reg = <0x78b7000 0x600>;
interrupts = <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&gcc GCC_BLSP1_AHB_CLK>,
- <&gcc GCC_BLSP1_QUP2_I2C_APPS_CLK>;
+ <&gcc GCC_BLSP1_QUP1_I2C_APPS_CLK>;
clock-names = "iface", "core";
#address-cells = <1>;
#size-cells = <0>;
@@ -269,5 +292,89 @@
compatible = "qcom,pshold";
reg = <0x4ab000 0x4>;
};
+
+ wifi0: wifi@a000000 {
+ compatible = "qcom,ipq4019-wifi";
+ reg = <0xa000000 0x200000>;
+ resets = <&gcc WIFI0_CPU_INIT_RESET>,
+ <&gcc WIFI0_RADIO_SRIF_RESET>,
+ <&gcc WIFI0_RADIO_WARM_RESET>,
+ <&gcc WIFI0_RADIO_COLD_RESET>,
+ <&gcc WIFI0_CORE_WARM_RESET>,
+ <&gcc WIFI0_CORE_COLD_RESET>;
+ reset-names = "wifi_cpu_init", "wifi_radio_srif",
+ "wifi_radio_warm", "wifi_radio_cold",
+ "wifi_core_warm", "wifi_core_cold";
+ clocks = <&gcc GCC_WCSS2G_CLK>,
+ <&gcc GCC_WCSS2G_REF_CLK>,
+ <&gcc GCC_WCSS2G_RTC_CLK>;
+ clock-names = "wifi_wcss_cmd", "wifi_wcss_ref",
+ "wifi_wcss_rtc";
+ interrupts = <GIC_SPI 32 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 33 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 34 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 35 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 36 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 37 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 38 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 39 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 40 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 41 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 42 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 43 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 44 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 45 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 46 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 47 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 168 IRQ_TYPE_NONE>;
+ interrupt-names = "msi0", "msi1", "msi2", "msi3",
+ "msi4", "msi5", "msi6", "msi7",
+ "msi8", "msi9", "msi10", "msi11",
+ "msi12", "msi13", "msi14", "msi15",
+ "legacy";
+ status = "disabled";
+ };
+
+ wifi1: wifi@a800000 {
+ compatible = "qcom,ipq4019-wifi";
+ reg = <0xa800000 0x200000>;
+ resets = <&gcc WIFI1_CPU_INIT_RESET>,
+ <&gcc WIFI1_RADIO_SRIF_RESET>,
+ <&gcc WIFI1_RADIO_WARM_RESET>,
+ <&gcc WIFI1_RADIO_COLD_RESET>,
+ <&gcc WIFI1_CORE_WARM_RESET>,
+ <&gcc WIFI1_CORE_COLD_RESET>;
+ reset-names = "wifi_cpu_init", "wifi_radio_srif",
+ "wifi_radio_warm", "wifi_radio_cold",
+ "wifi_core_warm", "wifi_core_cold";
+ clocks = <&gcc GCC_WCSS5G_CLK>,
+ <&gcc GCC_WCSS5G_REF_CLK>,
+ <&gcc GCC_WCSS5G_RTC_CLK>;
+ clock-names = "wifi_wcss_cmd", "wifi_wcss_ref",
+ "wifi_wcss_rtc";
+ interrupts = <GIC_SPI 48 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 49 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 50 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 51 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 52 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 53 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 54 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 55 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 56 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 57 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 58 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 59 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 60 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 61 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 62 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 63 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 169 IRQ_TYPE_NONE>;
+ interrupt-names = "msi0", "msi1", "msi2", "msi3",
+ "msi4", "msi5", "msi6", "msi7",
+ "msi8", "msi9", "msi10", "msi11",
+ "msi12", "msi13", "msi14", "msi15",
+ "legacy";
+ status = "disabled";
+ };
};
};
diff --git a/arch/arm/boot/dts/qcom-ipq8064.dtsi b/arch/arm/boot/dts/qcom-ipq8064.dtsi
index 76f4e8921d58..f1fbffe59b93 100644
--- a/arch/arm/boot/dts/qcom-ipq8064.dtsi
+++ b/arch/arm/boot/dts/qcom-ipq8064.dtsi
@@ -284,6 +284,29 @@
};
};
+ gsbi7: gsbi@16600000 {
+ status = "disabled";
+ compatible = "qcom,gsbi-v1.0.0";
+ cell-index = <7>;
+ reg = <0x16600000 0x100>;
+ clocks = <&gcc GSBI7_H_CLK>;
+ clock-names = "iface";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ syscon-tcsr = <&tcsr>;
+
+ gsbi7_serial: serial@16640000 {
+ compatible = "qcom,msm-uartdm-v1.3", "qcom,msm-uartdm";
+ reg = <0x16640000 0x1000>,
+ <0x16600000 0x1000>;
+ interrupts = <0 158 0x0>;
+ clocks = <&gcc GSBI7_UART_CLK>, <&gcc GSBI7_H_CLK>;
+ clock-names = "core", "iface";
+ status = "disabled";
+ };
+ };
+
sata_phy: sata-phy@1b400000 {
compatible = "qcom,ipq806x-sata-phy";
reg = <0x1b400000 0x200>;
diff --git a/arch/arm/boot/dts/qcom-msm8660.dtsi b/arch/arm/boot/dts/qcom-msm8660.dtsi
index 747669a62aa8..1b5d31b33b5e 100644
--- a/arch/arm/boot/dts/qcom-msm8660.dtsi
+++ b/arch/arm/boot/dts/qcom-msm8660.dtsi
@@ -63,6 +63,22 @@
};
};
+ /*
+ * These channels from the ADC are simply hardware monitors.
+ * That is why the ADC is referred to as "HKADC" - HouseKeeping
+ * ADC.
+ */
+ iio-hwmon {
+ compatible = "iio-hwmon";
+ io-channels = <&xoadc 0x00 0x01>, /* Battery */
+ <&xoadc 0x00 0x02>, /* DC in (charger) */
+ <&xoadc 0x00 0x04>, /* VPH the main system voltage */
+ <&xoadc 0x00 0x0b>, /* Die temperature */
+ <&xoadc 0x00 0x0c>, /* Reference voltage 1.25V */
+ <&xoadc 0x00 0x0d>, /* Reference voltage 0.625V */
+ <&xoadc 0x00 0x0e>; /* Reference voltage 0.325V */
+ };
+
soc: soc {
#address-cells = <1>;
#size-cells = <1>;
@@ -107,6 +123,31 @@
reg = <0x900000 0x4000>;
};
+
+ gsbi8: gsbi@19800000 {
+ compatible = "qcom,gsbi-v1.0.0";
+ cell-index = <12>;
+ reg = <0x19800000 0x100>;
+ clocks = <&gcc GSBI8_H_CLK>;
+ clock-names = "iface";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ syscon-tcsr = <&tcsr>;
+
+ gsbi8_i2c: i2c@19880000 {
+ compatible = "qcom,i2c-qup-v1.1.1";
+ reg = <0x19880000 0x1000>;
+ interrupts = <GIC_SPI 161 IRQ_TYPE_NONE>;
+ clocks = <&gcc GSBI8_QUP_CLK>, <&gcc GSBI8_H_CLK>;
+ clock-names = "core", "iface";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+ };
+
gsbi12: gsbi@19c00000 {
compatible = "qcom,gsbi-v1.0.0";
cell-index = <12>;
@@ -267,6 +308,49 @@
row-hold = <91500>;
};
+ xoadc: xoadc@197 {
+ compatible = "qcom,pm8058-adc";
+ reg = <0x197>;
+ interrupts-extended = <&pm8058 76 IRQ_TYPE_EDGE_RISING>;
+ #address-cells = <2>;
+ #size-cells = <0>;
+ #io-channel-cells = <2>;
+
+ vcoin: adc-channel@00 {
+ reg = <0x00 0x00>;
+ };
+ vbat: adc-channel@01 {
+ reg = <0x00 0x01>;
+ };
+ dcin: adc-channel@02 {
+ reg = <0x00 0x02>;
+ };
+ ichg: adc-channel@03 {
+ reg = <0x00 0x03>;
+ };
+ vph_pwr: adc-channel@04 {
+ reg = <0x00 0x04>;
+ };
+ usb_vbus: adc-channel@0a {
+ reg = <0x00 0x0a>;
+ };
+ die_temp: adc-channel@0b {
+ reg = <0x00 0x0b>;
+ };
+ ref_625mv: adc-channel@0c {
+ reg = <0x00 0x0c>;
+ };
+ ref_1250mv: adc-channel@0d {
+ reg = <0x00 0x0d>;
+ };
+ ref_325mv: adc-channel@0e {
+ reg = <0x00 0x0e>;
+ };
+ ref_muxoff: adc-channel@0f {
+ reg = <0x00 0x0f>;
+ };
+ };
+
rtc@1e8 {
compatible = "qcom,pm8058-rtc";
reg = <0x1e8>;
diff --git a/arch/arm/boot/dts/qcom-msm8974-sony-xperia-honami.dts b/arch/arm/boot/dts/qcom-msm8974-sony-xperia-honami.dts
index e7c1577d56f4..50966378f9e4 100644
--- a/arch/arm/boot/dts/qcom-msm8974-sony-xperia-honami.dts
+++ b/arch/arm/boot/dts/qcom-msm8974-sony-xperia-honami.dts
@@ -92,7 +92,6 @@
vdd_l9_l10_l17_l22-supply = <&vreg_boost>;
vdd_l13_l20_l23_l24-supply = <&vreg_boost>;
vdd_l21-supply = <&vreg_boost>;
- vin_5vs-supply = <&pm8941_5v>;
s1 {
regulator-min-microvolt = <1300000>;
diff --git a/arch/arm/boot/dts/qcom-msm8974.dtsi b/arch/arm/boot/dts/qcom-msm8974.dtsi
index 307bf6a647b3..a39207625354 100644
--- a/arch/arm/boot/dts/qcom-msm8974.dtsi
+++ b/arch/arm/boot/dts/qcom-msm8974.dtsi
@@ -3,6 +3,7 @@
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/clock/qcom,gcc-msm8974.h>
#include <dt-bindings/clock/qcom,rpmcc.h>
+#include <dt-bindings/reset/qcom,gcc-msm8974.h>
#include <dt-bindings/gpio/gpio.h>
#include "skeleton.dtsi"
@@ -551,6 +552,11 @@
reg = <0xfc400000 0x4000>;
};
+ tcsr: syscon@fd4a0000 {
+ compatible = "syscon";
+ reg = <0xfd4a0000 0x10000>;
+ };
+
tcsr_mutex_block: syscon@fd484000 {
compatible = "syscon";
reg = <0xfd484000 0x2000>;
@@ -620,6 +626,50 @@
status = "disabled";
};
+ otg: usb@f9a55000 {
+ compatible = "qcom,ci-hdrc";
+ reg = <0xf9a55000 0x200>,
+ <0xf9a55200 0x200>;
+ interrupts = <GIC_SPI 134 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&gcc GCC_USB_HS_AHB_CLK>,
+ <&gcc GCC_USB_HS_SYSTEM_CLK>;
+ clock-names = "iface", "core";
+ assigned-clocks = <&gcc GCC_USB_HS_SYSTEM_CLK>;
+ assigned-clock-rates = <75000000>;
+ resets = <&gcc GCC_USB_HS_BCR>;
+ reset-names = "core";
+ phy_type = "ulpi";
+ dr_mode = "otg";
+ ahb-burst-config = <0>;
+ phy-names = "usb-phy";
+ status = "disabled";
+ #reset-cells = <1>;
+
+ ulpi {
+ usb_hs1_phy: phy@a {
+ compatible = "qcom,usb-hs-phy-msm8974",
+ "qcom,usb-hs-phy";
+ #phy-cells = <0>;
+ clocks = <&xo_board>, <&gcc GCC_USB2A_PHY_SLEEP_CLK>;
+ clock-names = "ref", "sleep";
+ resets = <&gcc GCC_USB2A_PHY_BCR>, <&otg 0>;
+ reset-names = "phy", "por";
+ status = "disabled";
+ };
+
+ usb_hs2_phy: phy@b {
+ compatible = "qcom,usb-hs-phy-msm8974",
+ "qcom,usb-hs-phy";
+ #phy-cells = <0>;
+ clocks = <&xo_board>, <&gcc GCC_USB2B_PHY_SLEEP_CLK>;
+ clock-names = "ref", "sleep";
+ resets = <&gcc GCC_USB2B_PHY_BCR>, <&otg 1>;
+ reset-names = "phy", "por";
+ status = "disabled";
+ };
+ };
+ };
+
rng@f9bff000 {
compatible = "qcom,prng";
reg = <0xf9bff000 0x200>;
@@ -729,7 +779,7 @@
};
replicator@fc31c000 {
- compatible = "qcom,coresight-replicator1x", "arm,primecell";
+ compatible = "arm,coresight-dynamic-replicator", "arm,primecell";
reg = <0xfc31c000 0x1000>;
clocks = <&rpmcc RPM_SMD_QDSS_CLK>, <&rpmcc RPM_SMD_QDSS_A_CLK>;
@@ -1021,7 +1071,6 @@
pm8941_s1: s1 {};
pm8941_s2: s2 {};
pm8941_s3: s3 {};
- pm8941_5v: s4 {};
pm8941_l1: l1 {};
pm8941_l2: l2 {};
@@ -1051,9 +1100,6 @@
pm8941_lvs1: lvs1 {};
pm8941_lvs2: lvs2 {};
pm8941_lvs3: lvs3 {};
-
- pm8941_5vs1: 5vs1 {};
- pm8941_5vs2: 5vs2 {};
};
};
};
diff --git a/arch/arm/boot/dts/qcom-pm8941.dtsi b/arch/arm/boot/dts/qcom-pm8941.dtsi
index f8eb5e31c920..3fc9f34f45bb 100644
--- a/arch/arm/boot/dts/qcom-pm8941.dtsi
+++ b/arch/arm/boot/dts/qcom-pm8941.dtsi
@@ -26,7 +26,14 @@
bias-pull-up;
};
- charger@1000 {
+ usb_id: misc@900 {
+ compatible = "qcom,pm8941-misc";
+ reg = <0x900>;
+ interrupts = <0x0 0x9 0 IRQ_TYPE_EDGE_BOTH>;
+ interrupt-names = "usb_id";
+ };
+
+ smbb: charger@1000 {
compatible = "qcom,pm8941-charger";
reg = <0x1000>;
interrupts = <0x0 0x10 7 IRQ_TYPE_EDGE_BOTH>,
@@ -45,6 +52,10 @@
"chg-gone",
"usb-valid",
"dc-valid";
+
+ usb-otg-in-supply = <&pm8941_5vs1>;
+
+ chg_otg: otg-vbus { };
};
pm8941_gpios: gpios@c000 {
@@ -171,5 +182,28 @@
status = "disabled";
};
+
+ regulators {
+ compatible = "qcom,pm8941-regulators";
+ interrupts = <0x1 0x83 0x2 0>, <0x1 0x84 0x2 0>;
+ interrupt-names = "ocp-5vs1", "ocp-5vs2";
+ vin_5vs-supply = <&pm8941_5v>;
+
+ pm8941_5v: s4 {
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-enable-ramp-delay = <500>;
+ };
+
+ pm8941_5vs1: 5vs1 {
+ regulator-enable-ramp-delay = <1000>;
+ regulator-pull-down;
+ regulator-over-current-protection;
+ qcom,ocp-max-retries = <10>;
+ qcom,ocp-retry-delay = <30>;
+ qcom,vs-soft-start-strength = <0>;
+ regulator-initial-mode = <1>;
+ };
+ };
};
};
diff --git a/arch/arm/boot/dts/r7s72100-genmai.dts b/arch/arm/boot/dts/r7s72100-genmai.dts
index 52a7b586bac7..cd4d5ff7749e 100644
--- a/arch/arm/boot/dts/r7s72100-genmai.dts
+++ b/arch/arm/boot/dts/r7s72100-genmai.dts
@@ -11,6 +11,8 @@
/dts-v1/;
#include "r7s72100.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/r7s72100-pinctrl.h>
/ {
model = "Genmai";
@@ -34,6 +36,54 @@
#address-cells = <1>;
#size-cells = <1>;
};
+
+ leds {
+ status = "okay";
+ compatible = "gpio-leds";
+
+ led1 {
+ gpios = <&port4 10 GPIO_ACTIVE_LOW>;
+ };
+
+ led2 {
+ gpios = <&port4 11 GPIO_ACTIVE_LOW>;
+ };
+ };
+};
+
+&pinctrl {
+
+ scif2_pins: serial2 {
+ /* P3_0 as TxD2; P3_2 as RxD2 */
+ pinmux = <RZA1_PINMUX(3, 0, 6)>, <RZA1_PINMUX(3, 2, 4)>;
+ };
+
+ i2c2_pins: i2c2 {
+ /* RIIC2: P1_4 as SCL, P1_5 as SDA */
+ pinmux = <RZA1_PINMUX(1, 4, 1)>, <RZA1_PINMUX(1, 5, 1)>;
+ };
+
+ ether_pins: ether {
+ /* Ethernet on Ports 1,2,3,5 */
+ pinmux = <RZA1_PINMUX(1, 14, 4)>,/* P1_14 = ET_COL */
+ <RZA1_PINMUX(5, 9, 2)>, /* P5_9 = ET_MDC */
+ <RZA1_PINMUX(3, 3, 2)>, /* P3_3 = ET_MDIO */
+ <RZA1_PINMUX(3, 4, 2)>, /* P3_4 = ET_RXCLK */
+ <RZA1_PINMUX(3, 5, 2)>, /* P3_5 = ET_RXER */
+ <RZA1_PINMUX(3, 6, 2)>, /* P3_6 = ET_RXDV */
+ <RZA1_PINMUX(2, 0, 2)>, /* P2_0 = ET_TXCLK */
+ <RZA1_PINMUX(2, 1, 2)>, /* P2_1 = ET_TXER */
+ <RZA1_PINMUX(2, 2, 2)>, /* P2_2 = ET_TXEN */
+ <RZA1_PINMUX(2, 3, 2)>, /* P2_3 = ET_CRS */
+ <RZA1_PINMUX(2, 4, 2)>, /* P2_4 = ET_TXD0 */
+ <RZA1_PINMUX(2, 5, 2)>, /* P2_5 = ET_TXD1 */
+ <RZA1_PINMUX(2, 6, 2)>, /* P2_6 = ET_TXD2 */
+ <RZA1_PINMUX(2, 7, 2)>, /* P2_7 = ET_TXD3 */
+ <RZA1_PINMUX(2, 8, 2)>, /* P2_8 = ET_RXD0 */
+ <RZA1_PINMUX(2, 9, 2)>, /* P2_9 = ET_RXD1 */
+ <RZA1_PINMUX(2, 10, 2)>,/* P2_10 = ET_RXD2 */
+ <RZA1_PINMUX(2, 11, 2)>;/* P2_11 = ET_RXD3 */
+ };
};
&extal_clk {
@@ -52,12 +102,28 @@
status = "okay";
};
+&ether {
+ pinctrl-names = "default";
+ pinctrl-0 = <&ether_pins>;
+
+ status = "okay";
+
+ renesas,no-ether-link;
+ phy-handle = <&phy0>;
+ phy0: ethernet-phy@0 {
+ reg = <0>;
+ };
+};
+
&i2c2 {
status = "okay";
clock-frequency = <400000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c2_pins>;
+
eeprom@50 {
- compatible = "renesas,24c128";
+ compatible = "renesas,24c128", "atmel,24c128";
reg = <0x50>;
pagesize = <64>;
};
@@ -68,6 +134,9 @@
};
&scif2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&scif2_pins>;
+
status = "okay";
};
diff --git a/arch/arm/boot/dts/r7s72100-gr-peach.dts b/arch/arm/boot/dts/r7s72100-gr-peach.dts
new file mode 100644
index 000000000000..a1b2aef984f6
--- /dev/null
+++ b/arch/arm/boot/dts/r7s72100-gr-peach.dts
@@ -0,0 +1,66 @@
+/*
+ * Device Tree Source for the GR-Peach board
+ *
+ * Copyright (C) 2017 Jacopo Mondi <jacopo+renesas@jmondi.org>
+ * Copyright (C) 2016 Renesas Electronics
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/dts-v1/;
+#include "r7s72100.dtsi"
+
+/ {
+ model = "GR-Peach";
+ compatible = "renesas,gr-peach", "renesas,r7s72100";
+
+ aliases {
+ serial0 = &scif2;
+ };
+
+ chosen {
+ bootargs = "ignore_loglevel rw root=/dev/mtdblock0";
+ stdout-path = "serial0:115200n8";
+ };
+
+ memory@20000000 {
+ device_type = "memory";
+ reg = <0x20000000 0x00a00000>;
+
+ };
+
+ lbsc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ };
+
+ flash@18000000 {
+ compatible = "mtd-rom";
+ probe-type = "map_rom";
+ reg = <0x18000000 0x00800000>;
+ bank-width = <4>;
+ device-width = <1>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ rootfs@600000 {
+ label = "rootfs";
+ reg = <0x00600000 0x00200000>;
+ };
+ };
+};
+
+&extal_clk {
+ clock-frequency = <13333000>;
+};
+
+&usb_x1_clk {
+ clock-frequency = <48000000>;
+};
+
+&scif2 {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/r7s72100-rskrza1.dts b/arch/arm/boot/dts/r7s72100-rskrza1.dts
index 72df20a04320..5dcaaf131d27 100644
--- a/arch/arm/boot/dts/r7s72100-rskrza1.dts
+++ b/arch/arm/boot/dts/r7s72100-rskrza1.dts
@@ -10,6 +10,8 @@
/dts-v1/;
#include "r7s72100.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/r7s72100-pinctrl.h>
/ {
model = "RSKRZA1";
@@ -33,6 +35,15 @@
#address-cells = <1>;
#size-cells = <1>;
};
+
+ leds {
+ status = "okay";
+ compatible = "gpio-leds";
+
+ led0 {
+ gpios = <&port7 1 GPIO_ACTIVE_LOW>;
+ };
+ };
};
&extal_clk {
@@ -47,11 +58,57 @@
clock-frequency = <32768>;
};
+&pinctrl {
+
+ /* Serial Console */
+ scif2_pins: serial2 {
+ pinmux = <RZA1_PINMUX(3, 0, 6)>, /* TxD2 */
+ <RZA1_PINMUX(3, 2, 4)>; /* RxD2 */
+ };
+
+ /* Ethernet */
+ ether_pins: ether {
+ /* Ethernet on Ports 1,2,3,5 */
+ pinmux = <RZA1_PINMUX(1, 14, 4)>, /* ET_COL */
+ <RZA1_PINMUX(5, 9, 2)>, /* ET_MDC */
+ <RZA1_PINMUX(3, 3, 2)>, /* ET_MDIO */
+ <RZA1_PINMUX(3, 4, 2)>, /* ET_RXCLK */
+ <RZA1_PINMUX(3, 5, 2)>, /* ET_RXER */
+ <RZA1_PINMUX(3, 6, 2)>, /* ET_RXDV */
+ <RZA1_PINMUX(2, 0, 2)>, /* ET_TXCLK */
+ <RZA1_PINMUX(2, 1, 2)>, /* ET_TXER */
+ <RZA1_PINMUX(2, 2, 2)>, /* ET_TXEN */
+ <RZA1_PINMUX(2, 3, 2)>, /* ET_CRS */
+ <RZA1_PINMUX(2, 4, 2)>, /* ET_TXD0 */
+ <RZA1_PINMUX(2, 5, 2)>, /* ET_TXD1 */
+ <RZA1_PINMUX(2, 6, 2)>, /* ET_TXD2 */
+ <RZA1_PINMUX(2, 7, 2)>, /* ET_TXD3 */
+ <RZA1_PINMUX(2, 8, 2)>, /* ET_RXD0 */
+ <RZA1_PINMUX(2, 9, 2)>, /* ET_RXD1 */
+ <RZA1_PINMUX(2, 10, 2)>, /* ET_RXD2 */
+ <RZA1_PINMUX(2, 11, 2)>; /* ET_RXD3 */
+ };
+
+ /* SDHI ch1 on CN1 */
+ sdhi1_pins: sdhi1 {
+ pinmux = <RZA1_PINMUX(3, 8, 7)>, /* SD_CD_1 */
+ <RZA1_PINMUX(3, 9, 7)>, /* SD_WP_1 */
+ <RZA1_PINMUX(3, 10, 7)>, /* SD_D1_1 */
+ <RZA1_PINMUX(3, 11, 7)>, /* SD_D0_1 */
+ <RZA1_PINMUX(3, 12, 7)>, /* SD_CLK_1 */
+ <RZA1_PINMUX(3, 13, 7)>, /* SD_CMD_1 */
+ <RZA1_PINMUX(3, 14, 7)>, /* SD_D3_1 */
+ <RZA1_PINMUX(3, 15, 7)>; /* SD_D2_1 */
+ };
+};
+
&mtu2 {
status = "okay";
};
&ether {
+ pinctrl-names = "default";
+ pinctrl-0 = <&ether_pins>;
status = "okay";
renesas,no-ether-link;
phy-handle = <&phy0>;
@@ -61,6 +118,8 @@
};
&sdhi1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdhi1_pins>;
bus-width = <4>;
status = "okay";
};
@@ -78,5 +137,7 @@
};
&scif2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&scif2_pins>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/r7s72100.dtsi b/arch/arm/boot/dts/r7s72100.dtsi
index 0423996e4dcc..4ed12a4d9d51 100644
--- a/arch/arm/boot/dts/r7s72100.dtsi
+++ b/arch/arm/boot/dts/r7s72100.dtsi
@@ -144,9 +144,9 @@
#clock-cells = <1>;
compatible = "renesas,r7s72100-mstp-clocks", "renesas,cpg-mstp-clocks";
reg = <0xfcfe0430 4>;
- clocks = <&b_clk>;
- clock-indices = <R7S72100_CLK_ETHER>;
- clock-output-names = "ether";
+ clocks = <&b_clk>, <&p1_clk>, <&p1_clk>;
+ clock-indices = <R7S72100_CLK_ETHER R7S72100_CLK_USB0 R7S72100_CLK_USB1>;
+ clock-output-names = "ether", "usb0", "usb1";
};
mstp8_clks: mstp8_clks@fcfe0434 {
@@ -207,6 +207,84 @@
};
};
+ pinctrl: pin-controller@fcfe3000 {
+ compatible = "renesas,r7s72100-ports";
+
+ reg = <0xfcfe3000 0x4230>;
+
+ port0: gpio-0 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl 0 0 6>;
+ };
+
+ port1: gpio-1 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl 0 16 16>;
+ };
+
+ port2: gpio-2 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl 0 32 16>;
+ };
+
+ port3: gpio-3 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl 0 48 16>;
+ };
+
+ port4: gpio-4 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl 0 64 16>;
+ };
+
+ port5: gpio-5 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl 0 80 11>;
+ };
+
+ port6: gpio-6 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl 0 96 16>;
+ };
+
+ port7: gpio-7 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl 0 112 16>;
+ };
+
+ port8: gpio-8 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl 0 128 16>;
+ };
+
+ port9: gpio-9 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl 0 144 8>;
+ };
+
+ port10: gpio-10 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl 0 160 16>;
+ };
+
+ port11: gpio-11 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl 0 176 16>;
+ };
+ };
+
scif0: serial@e8007000 {
compatible = "renesas,scif-r7s72100", "renesas,scif";
reg = <0xe8007000 64>;
diff --git a/arch/arm/boot/dts/r8a73a4.dtsi b/arch/arm/boot/dts/r8a73a4.dtsi
index 1f5c9f6dddba..310222634570 100644
--- a/arch/arm/boot/dts/r8a73a4.dtsi
+++ b/arch/arm/boot/dts/r8a73a4.dtsi
@@ -219,7 +219,7 @@
power-domains = <&pd_c4>;
};
- pfc: pfc@e6050000 {
+ pfc: pin-controller@e6050000 {
compatible = "renesas,pfc-r8a73a4";
reg = <0 0xe6050000 0 0x9000>;
gpio-controller;
diff --git a/arch/arm/boot/dts/r8a7740-armadillo800eva.dts b/arch/arm/boot/dts/r8a7740-armadillo800eva.dts
index 7885075428bb..1788e186a512 100644
--- a/arch/arm/boot/dts/r8a7740-armadillo800eva.dts
+++ b/arch/arm/boot/dts/r8a7740-armadillo800eva.dts
@@ -266,7 +266,9 @@
lcd0_pins: lcd0 {
groups = "lcd0_data24_0", "lcd0_lclk_1", "lcd0_sync";
function = "lcd0";
+ };
+ lcd0_mux {
/* DBGMD/LCDC0/FSIA MUX */
gpio-hog;
gpios = <176 0>;
diff --git a/arch/arm/boot/dts/r8a7740.dtsi b/arch/arm/boot/dts/r8a7740.dtsi
index 34159a8349de..d37d22682a63 100644
--- a/arch/arm/boot/dts/r8a7740.dtsi
+++ b/arch/arm/boot/dts/r8a7740.dtsi
@@ -299,7 +299,7 @@
status = "disabled";
};
- pfc: pfc@e6050000 {
+ pfc: pin-controller@e6050000 {
compatible = "renesas,pfc-r8a7740";
reg = <0xe6050000 0x8000>,
<0xe605800c 0x20>;
diff --git a/arch/arm/boot/dts/r8a7743-iwg20d-q7.dts b/arch/arm/boot/dts/r8a7743-iwg20d-q7.dts
new file mode 100644
index 000000000000..081af0192851
--- /dev/null
+++ b/arch/arm/boot/dts/r8a7743-iwg20d-q7.dts
@@ -0,0 +1,56 @@
+/*
+ * Device Tree Source for the iWave-RZG1M Qseven carrier board
+ *
+ * Copyright (C) 2017 Renesas Electronics Corp.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/dts-v1/;
+#include "r8a7743-iwg20m.dtsi"
+
+/ {
+ model = "iWave Systems RainboW-G20D-Qseven board based on RZ/G1M";
+ compatible = "iwave,g20d", "iwave,g20m", "renesas,r8a7743";
+
+ aliases {
+ serial0 = &scif0;
+ ethernet0 = &avb;
+ };
+};
+
+&pfc {
+ scif0_pins: scif0 {
+ groups = "scif0_data_d";
+ function = "scif0";
+ };
+
+ avb_pins: avb {
+ groups = "avb_mdio", "avb_gmii";
+ function = "avb";
+ };
+};
+
+&scif0 {
+ pinctrl-0 = <&scif0_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+};
+
+&avb {
+ pinctrl-0 = <&avb_pins>;
+ pinctrl-names = "default";
+
+ phy-handle = <&phy3>;
+ phy-mode = "gmii";
+ renesas,no-ether-link;
+ status = "okay";
+
+ phy3: ethernet-phy@3 {
+ reg = <3>;
+ micrel,led-mode = <1>;
+ };
+};
diff --git a/arch/arm/boot/dts/r8a7743-iwg20m.dtsi b/arch/arm/boot/dts/r8a7743-iwg20m.dtsi
new file mode 100644
index 000000000000..ff7993818637
--- /dev/null
+++ b/arch/arm/boot/dts/r8a7743-iwg20m.dtsi
@@ -0,0 +1,55 @@
+/*
+ * Device Tree Source for the iWave-RZG1M-20M Qseven SOM
+ *
+ * Copyright (C) 2017 Renesas Electronics Corp.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include "r8a7743.dtsi"
+
+/ {
+ compatible = "iwave,g20m", "renesas,r8a7743";
+
+ memory@40000000 {
+ device_type = "memory";
+ reg = <0 0x40000000 0 0x20000000>;
+ };
+
+ memory@200000000 {
+ device_type = "memory";
+ reg = <2 0x00000000 0 0x20000000>;
+ };
+
+ reg_3p3v: 3p3v {
+ compatible = "regulator-fixed";
+ regulator-name = "3P3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+};
+
+&extal_clk {
+ clock-frequency = <20000000>;
+};
+
+&pfc {
+ mmcif0_pins: mmc {
+ groups = "mmc_data8_b", "mmc_ctrl";
+ function = "mmc";
+ };
+};
+
+&mmcif0 {
+ pinctrl-0 = <&mmcif0_pins>;
+ pinctrl-names = "default";
+
+ vmmc-supply = <&reg_3p3v>;
+ bus-width = <8>;
+ non-removable;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/r8a7743-sk-rzg1m.dts b/arch/arm/boot/dts/r8a7743-sk-rzg1m.dts
index 3a22538208f2..3d918d106593 100644
--- a/arch/arm/boot/dts/r8a7743-sk-rzg1m.dts
+++ b/arch/arm/boot/dts/r8a7743-sk-rzg1m.dts
@@ -1,7 +1,7 @@
/*
* Device Tree Source for the SK-RZG1M board
*
- * Copyright (C) 2016 Cogent Embedded, Inc.
+ * Copyright (C) 2016-2017 Cogent Embedded, Inc.
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
@@ -39,11 +39,34 @@
clock-frequency = <20000000>;
};
+&pfc {
+ scif0_pins: scif0 {
+ groups = "scif0_data_d";
+ function = "scif0";
+ };
+
+ ether_pins: ether {
+ groups = "eth_link", "eth_mdio", "eth_rmii";
+ function = "eth";
+ };
+
+ phy1_pins: phy1 {
+ groups = "intc_irq0";
+ function = "intc";
+ };
+};
+
&scif0 {
+ pinctrl-0 = <&scif0_pins>;
+ pinctrl-names = "default";
+
status = "okay";
};
&ether {
+ pinctrl-0 = <&ether_pins &phy1_pins>;
+ pinctrl-names = "default";
+
phy-handle = <&phy1>;
renesas,ether-link-active-low;
status = "okay";
diff --git a/arch/arm/boot/dts/r8a7743.dtsi b/arch/arm/boot/dts/r8a7743.dtsi
index 0ddac81742e4..14222c72f0e0 100644
--- a/arch/arm/boot/dts/r8a7743.dtsi
+++ b/arch/arm/boot/dts/r8a7743.dtsi
@@ -1,7 +1,7 @@
/*
* Device Tree Source for the r8a7743 SoC
*
- * Copyright (C) 2016 Cogent Embedded Inc.
+ * Copyright (C) 2016-2017 Cogent Embedded Inc.
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
@@ -18,9 +18,19 @@
#address-cells = <2>;
#size-cells = <2>;
+ aliases {
+ i2c0 = &i2c0;
+ i2c1 = &i2c1;
+ i2c2 = &i2c2;
+ i2c3 = &i2c3;
+ i2c4 = &i2c4;
+ i2c5 = &i2c5;
+ };
+
cpus {
#address-cells = <1>;
#size-cells = <0>;
+ enable-method = "renesas,apmu";
cpu0: cpu@0 {
device_type = "cpu";
@@ -28,8 +38,26 @@
reg = <0>;
clock-frequency = <1500000000>;
clocks = <&cpg CPG_CORE R8A7743_CLK_Z>;
+ clock-latency = <300000>; /* 300 us */
power-domains = <&sysc R8A7743_PD_CA15_CPU0>;
next-level-cache = <&L2_CA15>;
+
+ /* kHz - uV - OPPs unknown yet */
+ operating-points = <1500000 1000000>,
+ <1312500 1000000>,
+ <1125000 1000000>,
+ < 937500 1000000>,
+ < 750000 1000000>,
+ < 375000 1000000>;
+ };
+
+ cpu1: cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a15";
+ reg = <1>;
+ clock-frequency = <1500000000>;
+ power-domains = <&sysc R8A7743_PD_CA15_CPU1>;
+ next-level-cache = <&L2_CA15>;
};
L2_CA15: cache-controller-0 {
@@ -48,6 +76,12 @@
#size-cells = <2>;
ranges;
+ apmu@e6152000 {
+ compatible = "renesas,r8a7743-apmu", "renesas,apmu";
+ reg = <0 0xe6152000 0 0x188>;
+ cpus = <&cpu0 &cpu1>;
+ };
+
gic: interrupt-controller@f1001000 {
compatible = "arm,gic-400";
#interrupt-cells = <3>;
@@ -65,6 +99,126 @@
resets = <&cpg 408>;
};
+ gpio0: gpio@e6050000 {
+ compatible = "renesas,gpio-r8a7743",
+ "renesas,gpio-rcar";
+ reg = <0 0xe6050000 0 0x50>;
+ interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-ranges = <&pfc 0 0 32>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ clocks = <&cpg CPG_MOD 912>;
+ power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+ resets = <&cpg 912>;
+ };
+
+ gpio1: gpio@e6051000 {
+ compatible = "renesas,gpio-r8a7743",
+ "renesas,gpio-rcar";
+ reg = <0 0xe6051000 0 0x50>;
+ interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-ranges = <&pfc 0 32 26>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ clocks = <&cpg CPG_MOD 911>;
+ power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+ resets = <&cpg 911>;
+ };
+
+ gpio2: gpio@e6052000 {
+ compatible = "renesas,gpio-r8a7743",
+ "renesas,gpio-rcar";
+ reg = <0 0xe6052000 0 0x50>;
+ interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-ranges = <&pfc 0 64 32>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ clocks = <&cpg CPG_MOD 910>;
+ power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+ resets = <&cpg 910>;
+ };
+
+ gpio3: gpio@e6053000 {
+ compatible = "renesas,gpio-r8a7743",
+ "renesas,gpio-rcar";
+ reg = <0 0xe6053000 0 0x50>;
+ interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-ranges = <&pfc 0 96 32>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ clocks = <&cpg CPG_MOD 909>;
+ power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+ resets = <&cpg 909>;
+ };
+
+ gpio4: gpio@e6054000 {
+ compatible = "renesas,gpio-r8a7743",
+ "renesas,gpio-rcar";
+ reg = <0 0xe6054000 0 0x50>;
+ interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-ranges = <&pfc 0 128 32>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ clocks = <&cpg CPG_MOD 908>;
+ power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+ resets = <&cpg 908>;
+ };
+
+ gpio5: gpio@e6055000 {
+ compatible = "renesas,gpio-r8a7743",
+ "renesas,gpio-rcar";
+ reg = <0 0xe6055000 0 0x50>;
+ interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-ranges = <&pfc 0 160 32>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ clocks = <&cpg CPG_MOD 907>;
+ power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+ resets = <&cpg 907>;
+ };
+
+ gpio6: gpio@e6055400 {
+ compatible = "renesas,gpio-r8a7743",
+ "renesas,gpio-rcar";
+ reg = <0 0xe6055400 0 0x50>;
+ interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-ranges = <&pfc 0 192 32>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ clocks = <&cpg CPG_MOD 905>;
+ power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+ resets = <&cpg 905>;
+ };
+
+ gpio7: gpio@e6055800 {
+ compatible = "renesas,gpio-r8a7743",
+ "renesas,gpio-rcar";
+ reg = <0 0xe6055800 0 0x50>;
+ interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-ranges = <&pfc 0 224 26>;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+ clocks = <&cpg CPG_MOD 904>;
+ power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+ resets = <&cpg 904>;
+ };
+
irqc: interrupt-controller@e61c0000 {
compatible = "renesas,irqc-r8a7743", "renesas,irqc";
#interrupt-cells = <2>;
@@ -123,6 +277,11 @@
#power-domain-cells = <1>;
};
+ pfc: pin-controller@e6060000 {
+ compatible = "renesas,pfc-r8a7743";
+ reg = <0 0xe6060000 0 0x250>;
+ };
+
dmac0: dma-controller@e6700000 {
compatible = "renesas,dmac-r8a7743",
"renesas,rcar-dmac";
@@ -189,6 +348,94 @@
dma-channels = <15>;
};
+ /* The memory map in the User's Manual maps the cores to bus
+ * numbers
+ */
+ i2c0: i2c@e6508000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "renesas,i2c-r8a7743",
+ "renesas,rcar-gen2-i2c";
+ reg = <0 0xe6508000 0 0x40>;
+ interrupts = <GIC_SPI 287 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 931>;
+ power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+ resets = <&cpg 931>;
+ i2c-scl-internal-delay-ns = <6>;
+ status = "disabled";
+ };
+
+ i2c1: i2c@e6518000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "renesas,i2c-r8a7743",
+ "renesas,rcar-gen2-i2c";
+ reg = <0 0xe6518000 0 0x40>;
+ interrupts = <GIC_SPI 288 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 930>;
+ power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+ resets = <&cpg 930>;
+ i2c-scl-internal-delay-ns = <6>;
+ status = "disabled";
+ };
+
+ i2c2: i2c@e6530000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "renesas,i2c-r8a7743",
+ "renesas,rcar-gen2-i2c";
+ reg = <0 0xe6530000 0 0x40>;
+ interrupts = <GIC_SPI 286 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 929>;
+ power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+ resets = <&cpg 929>;
+ i2c-scl-internal-delay-ns = <6>;
+ status = "disabled";
+ };
+
+ i2c3: i2c@e6540000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "renesas,i2c-r8a7743",
+ "renesas,rcar-gen2-i2c";
+ reg = <0 0xe6540000 0 0x40>;
+ interrupts = <GIC_SPI 290 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 928>;
+ power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+ resets = <&cpg 928>;
+ i2c-scl-internal-delay-ns = <6>;
+ status = "disabled";
+ };
+
+ i2c4: i2c@e6520000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "renesas,i2c-r8a7743",
+ "renesas,rcar-gen2-i2c";
+ reg = <0 0xe6520000 0 0x40>;
+ interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 927>;
+ power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+ resets = <&cpg 927>;
+ i2c-scl-internal-delay-ns = <6>;
+ status = "disabled";
+ };
+
+ i2c5: i2c@e6528000 {
+ /* doesn't need pinmux */
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "renesas,i2c-r8a7743",
+ "renesas,rcar-gen2-i2c";
+ reg = <0 0xe6528000 0 0x40>;
+ interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 925>;
+ power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+ resets = <&cpg 925>;
+ i2c-scl-internal-delay-ns = <110>;
+ status = "disabled";
+ };
+
scifa0: serial@e6c40000 {
compatible = "renesas,scifa-r8a7743",
"renesas,rcar-gen2-scifa", "renesas,scifa";
@@ -468,6 +715,29 @@
status = "disabled";
};
+ icram2: sram@e6300000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe6300000 0 0x40000>;
+ };
+
+ icram0: sram@e63a0000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe63a0000 0 0x12000>;
+ };
+
+ icram1: sram@e63c0000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe63c0000 0 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0 0xe63c0000 0x1000>;
+
+ smp-sram@0 {
+ compatible = "renesas,smp-sram";
+ reg = <0 0x10>;
+ };
+ };
+
ether: ethernet@ee700000 {
compatible = "renesas,ether-r8a7743";
reg = <0 0xee700000 0 0x400>;
@@ -480,6 +750,35 @@
#size-cells = <0>;
status = "disabled";
};
+
+ avb: ethernet@e6800000 {
+ compatible = "renesas,etheravb-r8a7743",
+ "renesas,etheravb-rcar-gen2";
+ reg = <0 0xe6800000 0 0x800>, <0 0xee0e8000 0 0x4000>;
+ interrupts = <GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 812>;
+ power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+ resets = <&cpg 812>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ mmcif0: mmc@ee200000 {
+ compatible = "renesas,mmcif-r8a7743",
+ "renesas,sh-mmcif";
+ reg = <0 0xee200000 0 0x80>;
+ interrupts = <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 315>;
+ dmas = <&dmac0 0xd1>, <&dmac0 0xd2>,
+ <&dmac1 0xd1>, <&dmac1 0xd2>;
+ dma-names = "tx", "rx", "tx", "rx";
+ power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+ resets = <&cpg 315>;
+ reg-io-width = <4>;
+ max-frequency = <97500000>;
+ status = "disabled";
+ };
};
/* External root clock */
diff --git a/arch/arm/boot/dts/r8a7745-sk-rzg1e.dts b/arch/arm/boot/dts/r8a7745-sk-rzg1e.dts
index 97840b340197..b4d679b04ad6 100644
--- a/arch/arm/boot/dts/r8a7745-sk-rzg1e.dts
+++ b/arch/arm/boot/dts/r8a7745-sk-rzg1e.dts
@@ -1,7 +1,7 @@
/*
* Device Tree Source for the SK-RZG1E board
*
- * Copyright (C) 2016 Cogent Embedded, Inc.
+ * Copyright (C) 2016-2017 Cogent Embedded, Inc.
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
@@ -34,11 +34,34 @@
clock-frequency = <20000000>;
};
+&pfc {
+ scif2_pins: scif2 {
+ groups = "scif2_data";
+ function = "scif2";
+ };
+
+ ether_pins: ether {
+ groups = "eth_link", "eth_mdio", "eth_rmii";
+ function = "eth";
+ };
+
+ phy1_pins: phy1 {
+ groups = "intc_irq8";
+ function = "intc";
+ };
+};
+
&scif2 {
+ pinctrl-0 = <&scif2_pins>;
+ pinctrl-names = "default";
+
status = "okay";
};
&ether {
+ pinctrl-0 = <&ether_pins &phy1_pins>;
+ pinctrl-names = "default";
+
phy-handle = <&phy1>;
renesas,ether-link-active-low;
status = "okay";
diff --git a/arch/arm/boot/dts/r8a7745.dtsi b/arch/arm/boot/dts/r8a7745.dtsi
index 2feb0084bb3b..aff90dfb8b32 100644
--- a/arch/arm/boot/dts/r8a7745.dtsi
+++ b/arch/arm/boot/dts/r8a7745.dtsi
@@ -1,7 +1,7 @@
/*
* Device Tree Source for the r8a7745 SoC
*
- * Copyright (C) 2016 Cogent Embedded Inc.
+ * Copyright (C) 2016-2017 Cogent Embedded Inc.
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
@@ -123,6 +123,11 @@
#power-domain-cells = <1>;
};
+ pfc: pin-controller@e6060000 {
+ compatible = "renesas,pfc-r8a7745";
+ reg = <0 0xe6060000 0 0x11c>;
+ };
+
dmac0: dma-controller@e6700000 {
compatible = "renesas,dmac-r8a7745",
"renesas,rcar-dmac";
@@ -468,6 +473,29 @@
status = "disabled";
};
+ icram2: sram@e6300000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe6300000 0 0x40000>;
+ };
+
+ icram0: sram@e63a0000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe63a0000 0 0x12000>;
+ };
+
+ icram1: sram@e63c0000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe63c0000 0 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0 0xe63c0000 0x1000>;
+
+ smp-sram@0 {
+ compatible = "renesas,smp-sram";
+ reg = <0 0x10>;
+ };
+ };
+
ether: ethernet@ee700000 {
compatible = "renesas,ether-r8a7745";
reg = <0 0xee700000 0 0x400>;
diff --git a/arch/arm/boot/dts/r8a7778.dtsi b/arch/arm/boot/dts/r8a7778.dtsi
index 1e93c94a9eac..8f3156c0e575 100644
--- a/arch/arm/boot/dts/r8a7778.dtsi
+++ b/arch/arm/boot/dts/r8a7778.dtsi
@@ -142,7 +142,7 @@
interrupt-controller;
};
- pfc: pfc@fffc0000 {
+ pfc: pin-controller@fffc0000 {
compatible = "renesas,pfc-r8a7778";
reg = <0xfffc0000 0x118>;
};
diff --git a/arch/arm/boot/dts/r8a7779.dtsi b/arch/arm/boot/dts/r8a7779.dtsi
index ae2d9a9c65af..8ee0b2ca5d39 100644
--- a/arch/arm/boot/dts/r8a7779.dtsi
+++ b/arch/arm/boot/dts/r8a7779.dtsi
@@ -286,7 +286,7 @@
status = "disabled";
};
- pfc: pfc@fffc0000 {
+ pfc: pin-controller@fffc0000 {
compatible = "renesas,pfc-r8a7779";
reg = <0xfffc0000 0x23c>;
};
diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi
index 99269aaca6fc..16358bf8d1db 100644
--- a/arch/arm/boot/dts/r8a7790.dtsi
+++ b/arch/arm/boot/dts/r8a7790.dtsi
@@ -614,7 +614,7 @@
max-frequency = <97500000>;
};
- pfc: pfc@e6060000 {
+ pfc: pin-controller@e6060000 {
compatible = "renesas,pfc-r8a7790";
reg = <0 0xe6060000 0 0x250>;
};
@@ -830,6 +830,24 @@
status = "disabled";
};
+ icram0: sram@e63a0000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe63a0000 0 0x12000>;
+ };
+
+ icram1: sram@e63c0000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe63c0000 0 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0 0xe63c0000 0x1000>;
+
+ smp-sram@0 {
+ compatible = "renesas,smp-sram";
+ reg = <0 0x10>;
+ };
+ };
+
ether: ethernet@ee700000 {
compatible = "renesas,ether-r8a7790";
reg = <0 0xee700000 0 0x400>;
@@ -855,7 +873,7 @@
};
sata0: sata@ee300000 {
- compatible = "renesas,sata-r8a7790";
+ compatible = "renesas,sata-r8a7790", "renesas,rcar-gen2-sata";
reg = <0 0xee300000 0 0x2000>;
interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp8_clks R8A7790_CLK_SATA0>;
@@ -864,7 +882,7 @@
};
sata1: sata@ee500000 {
- compatible = "renesas,sata-r8a7790";
+ compatible = "renesas,sata-r8a7790", "renesas,rcar-gen2-sata";
reg = <0 0xee500000 0 0x2000>;
interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp8_clks R8A7790_CLK_SATA1>;
@@ -909,7 +927,7 @@
};
vin0: video@e6ef0000 {
- compatible = "renesas,vin-r8a7790";
+ compatible = "renesas,vin-r8a7790", "renesas,rcar-gen2-vin";
reg = <0 0xe6ef0000 0 0x1000>;
interrupts = <GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp8_clks R8A7790_CLK_VIN0>;
@@ -918,7 +936,7 @@
};
vin1: video@e6ef1000 {
- compatible = "renesas,vin-r8a7790";
+ compatible = "renesas,vin-r8a7790", "renesas,rcar-gen2-vin";
reg = <0 0xe6ef1000 0 0x1000>;
interrupts = <GIC_SPI 189 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp8_clks R8A7790_CLK_VIN1>;
@@ -927,7 +945,7 @@
};
vin2: video@e6ef2000 {
- compatible = "renesas,vin-r8a7790";
+ compatible = "renesas,vin-r8a7790", "renesas,rcar-gen2-vin";
reg = <0 0xe6ef2000 0 0x1000>;
interrupts = <GIC_SPI 190 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp8_clks R8A7790_CLK_VIN2>;
@@ -936,7 +954,7 @@
};
vin3: video@e6ef3000 {
- compatible = "renesas,vin-r8a7790";
+ compatible = "renesas,vin-r8a7790", "renesas,rcar-gen2-vin";
reg = <0 0xe6ef3000 0 0x1000>;
interrupts = <GIC_SPI 191 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp8_clks R8A7790_CLK_VIN3>;
@@ -1602,16 +1620,14 @@
0x0800 0 0 1 &gic GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH
0x1000 0 0 2 &gic GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
- usb@0,1 {
+ usb@1,0 {
reg = <0x800 0 0 0 0>;
- device_type = "pci";
phys = <&usb0 0>;
phy-names = "usb";
};
- usb@0,2 {
+ usb@2,0 {
reg = <0x1000 0 0 0 0>;
- device_type = "pci";
phys = <&usb0 0>;
phy-names = "usb";
};
@@ -1658,16 +1674,14 @@
0x0800 0 0 1 &gic GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH
0x1000 0 0 2 &gic GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>;
- usb@0,1 {
- reg = <0x800 0 0 0 0>;
- device_type = "pci";
+ usb@1,0 {
+ reg = <0x20800 0 0 0 0>;
phys = <&usb2 0>;
phy-names = "usb";
};
- usb@0,2 {
- reg = <0x1000 0 0 0 0>;
- device_type = "pci";
+ usb@2,0 {
+ reg = <0x21000 0 0 0 0>;
phys = <&usb2 0>;
phy-names = "usb";
};
diff --git a/arch/arm/boot/dts/r8a7791-koelsch.dts b/arch/arm/boot/dts/r8a7791-koelsch.dts
index 001e6116c47c..0ce0b278e1cb 100644
--- a/arch/arm/boot/dts/r8a7791-koelsch.dts
+++ b/arch/arm/boot/dts/r8a7791-koelsch.dts
@@ -642,11 +642,19 @@
};
};
+ cec_clock: cec-clock {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <12000000>;
+ };
+
hdmi@39 {
compatible = "adi,adv7511w";
reg = <0x39>;
interrupt-parent = <&gpio3>;
interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&cec_clock>;
+ clock-names = "cec";
adi,input-depth = <8>;
adi,input-colorspace = "rgb";
@@ -702,7 +710,7 @@
};
eeprom@50 {
- compatible = "renesas,24c02";
+ compatible = "renesas,24c02", "atmel,24c02";
reg = <0x50>;
pagesize = <16>;
};
diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi
index 4d0c2ce59900..f1d1a9772153 100644
--- a/arch/arm/boot/dts/r8a7791.dtsi
+++ b/arch/arm/boot/dts/r8a7791.dtsi
@@ -562,7 +562,7 @@
status = "disabled";
};
- pfc: pfc@e6060000 {
+ pfc: pin-controller@e6060000 {
compatible = "renesas,pfc-r8a7791";
reg = <0 0xe6060000 0 0x250>;
};
@@ -776,6 +776,15 @@
status = "disabled";
};
+ adc: adc@e6e54000 {
+ compatible = "renesas,r8a7791-gyroadc", "renesas,rcar-gyroadc";
+ reg = <0 0xe6e54000 0 64>;
+ clocks = <&mstp9_clks R8A7791_CLK_GYROADC>;
+ clock-names = "fck";
+ power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
+ status = "disabled";
+ };
+
scif2: serial@e6e58000 {
compatible = "renesas,scif-r8a7791", "renesas,rcar-gen2-scif",
"renesas,scif";
@@ -881,6 +890,24 @@
status = "disabled";
};
+ icram0: sram@e63a0000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe63a0000 0 0x12000>;
+ };
+
+ icram1: sram@e63c0000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe63c0000 0 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0 0xe63c0000 0x1000>;
+
+ smp-sram@0 {
+ compatible = "renesas,smp-sram";
+ reg = <0 0x10>;
+ };
+ };
+
ether: ethernet@ee700000 {
compatible = "renesas,ether-r8a7791";
reg = <0 0xee700000 0 0x400>;
@@ -906,7 +933,7 @@
};
sata0: sata@ee300000 {
- compatible = "renesas,sata-r8a7791";
+ compatible = "renesas,sata-r8a7791", "renesas,rcar-gen2-sata";
reg = <0 0xee300000 0 0x2000>;
interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp8_clks R8A7791_CLK_SATA0>;
@@ -915,7 +942,7 @@
};
sata1: sata@ee500000 {
- compatible = "renesas,sata-r8a7791";
+ compatible = "renesas,sata-r8a7791", "renesas,rcar-gen2-sata";
reg = <0 0xee500000 0 0x2000>;
interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp8_clks R8A7791_CLK_SATA1>;
@@ -960,7 +987,7 @@
};
vin0: video@e6ef0000 {
- compatible = "renesas,vin-r8a7791";
+ compatible = "renesas,vin-r8a7791", "renesas,rcar-gen2-vin";
reg = <0 0xe6ef0000 0 0x1000>;
interrupts = <GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp8_clks R8A7791_CLK_VIN0>;
@@ -969,7 +996,7 @@
};
vin1: video@e6ef1000 {
- compatible = "renesas,vin-r8a7791";
+ compatible = "renesas,vin-r8a7791", "renesas,rcar-gen2-vin";
reg = <0 0xe6ef1000 0 0x1000>;
interrupts = <GIC_SPI 189 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp8_clks R8A7791_CLK_VIN1>;
@@ -978,7 +1005,7 @@
};
vin2: video@e6ef2000 {
- compatible = "renesas,vin-r8a7791";
+ compatible = "renesas,vin-r8a7791", "renesas,rcar-gen2-vin";
reg = <0 0xe6ef2000 0 0x1000>;
interrupts = <GIC_SPI 190 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp8_clks R8A7791_CLK_VIN2>;
@@ -1425,13 +1452,15 @@
mstp9_clks: mstp9_clks@e6150994 {
compatible = "renesas,r8a7791-mstp-clocks", "renesas,cpg-mstp-clocks";
reg = <0 0xe6150994 0 4>, <0 0xe61509a4 0 4>;
- clocks = <&cp_clk>, <&cp_clk>, <&cp_clk>, <&cp_clk>,
+ clocks = <&p_clk>,
+ <&cp_clk>, <&cp_clk>, <&cp_clk>, <&cp_clk>,
<&cp_clk>, <&cp_clk>, <&cp_clk>, <&cp_clk>,
<&p_clk>, <&p_clk>, <&cpg_clocks R8A7791_CLK_QSPI>, <&hp_clk>,
<&cp_clk>, <&hp_clk>, <&hp_clk>, <&hp_clk>,
<&hp_clk>, <&hp_clk>;
#clock-cells = <1>;
clock-indices = <
+ R8A7791_CLK_GYROADC
R8A7791_CLK_GPIO7 R8A7791_CLK_GPIO6 R8A7791_CLK_GPIO5 R8A7791_CLK_GPIO4
R8A7791_CLK_GPIO3 R8A7791_CLK_GPIO2 R8A7791_CLK_GPIO1 R8A7791_CLK_GPIO0
R8A7791_CLK_RCAN1 R8A7791_CLK_RCAN0 R8A7791_CLK_QSPI_MOD R8A7791_CLK_I2C5
@@ -1439,6 +1468,7 @@
R8A7791_CLK_I2C1 R8A7791_CLK_I2C0
>;
clock-output-names =
+ "gyroadc",
"gpio7", "gpio6", "gpio5", "gpio4", "gpio3", "gpio2", "gpio1", "gpio0",
"rcan1", "rcan0", "qspi_mod", "i2c5", "i2c6", "i2c4", "i2c3", "i2c2",
"i2c1", "i2c0";
@@ -1601,16 +1631,14 @@
0x0800 0 0 1 &gic GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH
0x1000 0 0 2 &gic GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
- usb@0,1 {
+ usb@1,0 {
reg = <0x800 0 0 0 0>;
- device_type = "pci";
phys = <&usb0 0>;
phy-names = "usb";
};
- usb@0,2 {
+ usb@2,0 {
reg = <0x1000 0 0 0 0>;
- device_type = "pci";
phys = <&usb0 0>;
phy-names = "usb";
};
@@ -1636,16 +1664,14 @@
0x0800 0 0 1 &gic GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH
0x1000 0 0 2 &gic GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>;
- usb@0,1 {
- reg = <0x800 0 0 0 0>;
- device_type = "pci";
+ usb@1,0 {
+ reg = <0x10800 0 0 0 0>;
phys = <&usb2 0>;
phy-names = "usb";
};
- usb@0,2 {
- reg = <0x1000 0 0 0 0>;
- device_type = "pci";
+ usb@2,0 {
+ reg = <0x11000 0 0 0 0>;
phys = <&usb2 0>;
phy-names = "usb";
};
diff --git a/arch/arm/boot/dts/r8a7792.dtsi b/arch/arm/boot/dts/r8a7792.dtsi
index 0efecb232ee5..2623f39bed2b 100644
--- a/arch/arm/boot/dts/r8a7792.dtsi
+++ b/arch/arm/boot/dts/r8a7792.dtsi
@@ -465,6 +465,24 @@
status = "disabled";
};
+ icram0: sram@e63a0000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe63a0000 0 0x12000>;
+ };
+
+ icram1: sram@e63c0000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe63c0000 0 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0 0xe63c0000 0x1000>;
+
+ smp-sram@0 {
+ compatible = "renesas,smp-sram";
+ reg = <0 0x10>;
+ };
+ };
+
sdhi0: sd@ee100000 {
compatible = "renesas,sdhi-r8a7792";
reg = <0 0xee100000 0 0x328>;
diff --git a/arch/arm/boot/dts/r8a7793-gose.dts b/arch/arm/boot/dts/r8a7793-gose.dts
index 806c93f6ae8b..76e3aca2029e 100644
--- a/arch/arm/boot/dts/r8a7793-gose.dts
+++ b/arch/arm/boot/dts/r8a7793-gose.dts
@@ -253,17 +253,38 @@
};
};
+ hdmi-in {
+ compatible = "hdmi-connector";
+ type = "a";
+
+ port {
+ hdmi_con_in: endpoint {
+ remote-endpoint = <&adv7612_in>;
+ };
+ };
+ };
+
hdmi-out {
compatible = "hdmi-connector";
type = "a";
port {
- hdmi_con: endpoint {
+ hdmi_con_out: endpoint {
remote-endpoint = <&adv7511_out>;
};
};
};
+ composite-in {
+ compatible = "composite-video-connector";
+
+ port {
+ composite_con_in: endpoint {
+ remote-endpoint = <&adv7180_in>;
+ };
+ };
+ };
+
x2_clk: x2-clock {
compatible = "fixed-clock";
#clock-cells = <0>;
@@ -348,16 +369,37 @@
sdhi0_pins: sd0 {
groups = "sdhi0_data4", "sdhi0_ctrl";
function = "sdhi0";
+ power-source = <3300>;
+ };
+
+ sdhi0_pins_uhs: sd0_uhs {
+ groups = "sdhi0_data4", "sdhi0_ctrl";
+ function = "sdhi0";
+ power-source = <1800>;
};
sdhi1_pins: sd1 {
groups = "sdhi1_data4", "sdhi1_ctrl";
function = "sdhi1";
+ power-source = <3300>;
+ };
+
+ sdhi1_pins_uhs: sd1_uhs {
+ groups = "sdhi1_data4", "sdhi1_ctrl";
+ function = "sdhi1";
+ power-source = <1800>;
};
sdhi2_pins: sd2 {
groups = "sdhi2_data4", "sdhi2_ctrl";
function = "sdhi2";
+ power-source = <3300>;
+ };
+
+ sdhi2_pins_uhs: sd2_uhs {
+ groups = "sdhi2_data4", "sdhi2_ctrl";
+ function = "sdhi2";
+ power-source = <1800>;
};
qspi_pins: qspi {
@@ -374,6 +416,16 @@
groups = "audio_clk_a";
function = "audio_clk";
};
+
+ vin0_pins: vin0 {
+ groups = "vin0_data24", "vin0_sync", "vin0_clkenb", "vin0_clk";
+ function = "vin0";
+ };
+
+ vin1_pins: vin1 {
+ groups = "vin1_data8", "vin1_clk";
+ function = "vin1";
+ };
};
&ether {
@@ -416,33 +468,40 @@
&sdhi0 {
pinctrl-0 = <&sdhi0_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&sdhi0_pins_uhs>;
+ pinctrl-names = "default", "state_uhs";
vmmc-supply = <&vcc_sdhi0>;
vqmmc-supply = <&vccq_sdhi0>;
cd-gpios = <&gpio6 6 GPIO_ACTIVE_LOW>;
wp-gpios = <&gpio6 7 GPIO_ACTIVE_HIGH>;
+ sd-uhs-sdr50;
+ sd-uhs-sdr104;
status = "okay";
};
&sdhi1 {
pinctrl-0 = <&sdhi1_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&sdhi1_pins_uhs>;
+ pinctrl-names = "default", "state_uhs";
vmmc-supply = <&vcc_sdhi1>;
vqmmc-supply = <&vccq_sdhi1>;
cd-gpios = <&gpio6 14 GPIO_ACTIVE_LOW>;
wp-gpios = <&gpio6 15 GPIO_ACTIVE_HIGH>;
+ sd-uhs-sdr50;
status = "okay";
};
&sdhi2 {
pinctrl-0 = <&sdhi2_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&sdhi2_pins_uhs>;
+ pinctrl-names = "default", "state_uhs";
vmmc-supply = <&vcc_sdhi2>;
vqmmc-supply = <&vccq_sdhi2>;
cd-gpios = <&gpio6 22 GPIO_ACTIVE_LOW>;
+ sd-uhs-sdr50;
status = "okay";
};
@@ -498,6 +557,32 @@
reg = <0x12>;
};
+ composite-in@20 {
+ compatible = "adi,adv7180cp";
+ reg = <0x20>;
+ remote = <&vin1>;
+
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ adv7180_in: endpoint {
+ remote-endpoint = <&composite_con_in>;
+ };
+ };
+
+ port@3 {
+ reg = <3>;
+ adv7180_out: endpoint {
+ bus-width = <8>;
+ remote-endpoint = <&vin1ep>;
+ };
+ };
+ };
+ };
+
hdmi@39 {
compatible = "adi,adv7511w";
reg = <0x39>;
@@ -524,7 +609,34 @@
port@1 {
reg = <1>;
adv7511_out: endpoint {
- remote-endpoint = <&hdmi_con>;
+ remote-endpoint = <&hdmi_con_out>;
+ };
+ };
+ };
+ };
+
+ hdmi-in@4c {
+ compatible = "adi,adv7612";
+ reg = <0x4c>;
+ interrupt-parent = <&gpio4>;
+ interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
+ default-input = <0>;
+
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ adv7612_in: endpoint {
+ remote-endpoint = <&hdmi_con_in>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+ adv7612_out: endpoint {
+ remote-endpoint = <&vin0ep2>;
};
};
};
@@ -578,3 +690,42 @@
&ssi1 {
shared-pin;
};
+
+/* HDMI video input */
+&vin0 {
+ status = "okay";
+ pinctrl-0 = <&vin0_pins>;
+ pinctrl-names = "default";
+
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ vin0ep2: endpoint {
+ remote-endpoint = <&adv7612_out>;
+ bus-width = <24>;
+ hsync-active = <0>;
+ vsync-active = <0>;
+ pclk-sample = <1>;
+ data-active = <1>;
+ };
+ };
+};
+
+/* composite video input */
+&vin1 {
+ pinctrl-0 = <&vin1_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ vin1ep: endpoint {
+ remote-endpoint = <&adv7180_out>;
+ bus-width = <8>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/r8a7793.dtsi b/arch/arm/boot/dts/r8a7793.dtsi
index 4de6041d61f9..497716b6fbe2 100644
--- a/arch/arm/boot/dts/r8a7793.dtsi
+++ b/arch/arm/boot/dts/r8a7793.dtsi
@@ -529,7 +529,7 @@
status = "disabled";
};
- pfc: pfc@e6060000 {
+ pfc: pin-controller@e6060000 {
compatible = "renesas,pfc-r8a7793";
reg = <0 0xe6060000 0 0x250>;
};
@@ -542,6 +542,7 @@
dmas = <&dmac0 0xcd>, <&dmac0 0xce>,
<&dmac1 0xcd>, <&dmac1 0xce>;
dma-names = "tx", "rx", "tx", "rx";
+ max-frequency = <195000000>;
power-domains = <&sysc R8A7793_PD_ALWAYS_ON>;
status = "disabled";
};
@@ -554,6 +555,7 @@
dmas = <&dmac0 0xc1>, <&dmac0 0xc2>,
<&dmac1 0xc1>, <&dmac1 0xc2>;
dma-names = "tx", "rx", "tx", "rx";
+ max-frequency = <97500000>;
power-domains = <&sysc R8A7793_PD_ALWAYS_ON>;
status = "disabled";
};
@@ -566,6 +568,7 @@
dmas = <&dmac0 0xd3>, <&dmac0 0xd4>,
<&dmac1 0xd3>, <&dmac1 0xd4>;
dma-names = "tx", "rx", "tx", "rx";
+ max-frequency = <97500000>;
power-domains = <&sysc R8A7793_PD_ALWAYS_ON>;
status = "disabled";
};
@@ -845,6 +848,24 @@
status = "disabled";
};
+ icram0: sram@e63a0000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe63a0000 0 0x12000>;
+ };
+
+ icram1: sram@e63c0000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe63c0000 0 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0 0xe63c0000 0x1000>;
+
+ smp-sram@0 {
+ compatible = "renesas,smp-sram";
+ reg = <0 0x10>;
+ };
+ };
+
ether: ethernet@ee700000 {
compatible = "renesas,ether-r8a7793";
reg = <0 0xee700000 0 0x400>;
diff --git a/arch/arm/boot/dts/r8a7794.dtsi b/arch/arm/boot/dts/r8a7794.dtsi
index a19b884fb258..26535414203a 100644
--- a/arch/arm/boot/dts/r8a7794.dtsi
+++ b/arch/arm/boot/dts/r8a7794.dtsi
@@ -588,6 +588,24 @@
status = "disabled";
};
+ icram0: sram@e63a0000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe63a0000 0 0x12000>;
+ };
+
+ icram1: sram@e63c0000 {
+ compatible = "mmio-sram";
+ reg = <0 0xe63c0000 0 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0 0xe63c0000 0x1000>;
+
+ smp-sram@0 {
+ compatible = "renesas,smp-sram";
+ reg = <0 0x10>;
+ };
+ };
+
ether: ethernet@ee700000 {
compatible = "renesas,ether-r8a7794";
reg = <0 0xee700000 0 0x400>;
@@ -783,7 +801,7 @@
};
vin0: video@e6ef0000 {
- compatible = "renesas,vin-r8a7794";
+ compatible = "renesas,vin-r8a7794", "renesas,rcar-gen2-vin";
reg = <0 0xe6ef0000 0 0x1000>;
interrupts = <GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp8_clks R8A7794_CLK_VIN0>;
@@ -792,7 +810,7 @@
};
vin1: video@e6ef1000 {
- compatible = "renesas,vin-r8a7794";
+ compatible = "renesas,vin-r8a7794", "renesas,rcar-gen2-vin";
reg = <0 0xe6ef1000 0 0x1000>;
interrupts = <GIC_SPI 189 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp8_clks R8A7794_CLK_VIN1>;
@@ -820,16 +838,14 @@
0x0800 0 0 1 &gic GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH
0x1000 0 0 2 &gic GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
- usb@0,1 {
+ usb@1,0 {
reg = <0x800 0 0 0 0>;
- device_type = "pci";
phys = <&usb0 0>;
phy-names = "usb";
};
- usb@0,2 {
+ usb@2,0 {
reg = <0x1000 0 0 0 0>;
- device_type = "pci";
phys = <&usb0 0>;
phy-names = "usb";
};
@@ -855,16 +871,14 @@
0x0800 0 0 1 &gic GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH
0x1000 0 0 2 &gic GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>;
- usb@0,1 {
- reg = <0x800 0 0 0 0>;
- device_type = "pci";
+ usb@1,0 {
+ reg = <0x10800 0 0 0 0>;
phys = <&usb2 0>;
phy-names = "usb";
};
- usb@0,2 {
- reg = <0x1000 0 0 0 0>;
- device_type = "pci";
+ usb@2,0 {
+ reg = <0x11000 0 0 0 0>;
phys = <&usb2 0>;
phy-names = "usb";
};
diff --git a/arch/arm/boot/dts/r8a77xx-aa104xd12-panel.dtsi b/arch/arm/boot/dts/r8a77xx-aa104xd12-panel.dtsi
index 65cb50f0c29f..238d14bb0ebe 100644
--- a/arch/arm/boot/dts/r8a77xx-aa104xd12-panel.dtsi
+++ b/arch/arm/boot/dts/r8a77xx-aa104xd12-panel.dtsi
@@ -10,10 +10,11 @@
/ {
panel {
- compatible = "mitsubishi,aa104xd12", "panel-dpi";
+ compatible = "mitsubishi,aa104xd12", "panel-lvds";
width-mm = <210>;
height-mm = <158>;
+ data-mapping = "jeida-18";
panel-timing {
/* 1024x768 @65Hz */
diff --git a/arch/arm/boot/dts/r8a77xx-aa121td01-panel.dtsi b/arch/arm/boot/dts/r8a77xx-aa121td01-panel.dtsi
index a07ebf8f6938..04aafd479775 100644
--- a/arch/arm/boot/dts/r8a77xx-aa121td01-panel.dtsi
+++ b/arch/arm/boot/dts/r8a77xx-aa121td01-panel.dtsi
@@ -10,10 +10,11 @@
/ {
panel {
- compatible = "mitsubishi,aa121td01", "panel-dpi";
+ compatible = "mitsubishi,aa121td01", "panel-lvds";
width-mm = <261>;
height-mm = <163>;
+ data-mapping = "jeida-18";
panel-timing {
/* 1280x800 @60Hz */
diff --git a/arch/arm/boot/dts/rk1108-evb.dts b/arch/arm/boot/dts/rk1108-evb.dts
deleted file mode 100644
index 3956cff4ca79..000000000000
--- a/arch/arm/boot/dts/rk1108-evb.dts
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/dts-v1/;
-
-#include "rk1108.dtsi"
-
-/ {
- model = "Rockchip RK1108 Evaluation board";
- compatible = "rockchip,rk1108-evb", "rockchip,rk1108";
-
- memory@60000000 {
- device_type = "memory";
- reg = <0x60000000 0x08000000>;
- };
-
- chosen {
- stdout-path = "serial2:1500000n8";
- };
-};
-
-&uart0 {
- status = "okay";
-};
-
-&uart1 {
- status = "okay";
-};
-
-&uart2 {
- status = "okay";
-};
diff --git a/arch/arm/boot/dts/rk1108.dtsi b/arch/arm/boot/dts/rk1108.dtsi
deleted file mode 100644
index 1297924db6ad..000000000000
--- a/arch/arm/boot/dts/rk1108.dtsi
+++ /dev/null
@@ -1,452 +0,0 @@
-/*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include <dt-bindings/gpio/gpio.h>
-#include <dt-bindings/interrupt-controller/irq.h>
-#include <dt-bindings/interrupt-controller/arm-gic.h>
-#include <dt-bindings/clock/rv1108-cru.h>
-#include <dt-bindings/pinctrl/rockchip.h>
-/ {
- #address-cells = <1>;
- #size-cells = <1>;
-
- compatible = "rockchip,rk1108";
-
- interrupt-parent = <&gic>;
-
- aliases {
- serial0 = &uart0;
- serial1 = &uart1;
- serial2 = &uart2;
- };
-
- cpus {
- #address-cells = <1>;
- #size-cells = <0>;
-
- cpu0: cpu@f00 {
- device_type = "cpu";
- compatible = "arm,cortex-a7";
- reg = <0xf00>;
- };
- };
-
- arm-pmu {
- compatible = "arm,cortex-a7-pmu";
- interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
- };
-
- timer {
- compatible = "arm,armv7-timer";
- interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_HIGH)>,
- <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_HIGH)>;
- clock-frequency = <24000000>;
- };
-
- xin24m: oscillator {
- compatible = "fixed-clock";
- clock-frequency = <24000000>;
- clock-output-names = "xin24m";
- #clock-cells = <0>;
- };
-
- amba {
- compatible = "simple-bus";
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
-
- pdma: pdma@102a0000 {
- compatible = "arm,pl330", "arm,primecell";
- reg = <0x102a0000 0x4000>;
- interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
- #dma-cells = <1>;
- arm,pl330-broken-no-flushp;
- clocks = <&cru ACLK_DMAC>;
- clock-names = "apb_pclk";
- };
- };
-
- bus_intmem@10080000 {
- compatible = "mmio-sram";
- reg = <0x10080000 0x2000>;
- #address-cells = <1>;
- #size-cells = <1>;
- ranges = <0 0x10080000 0x2000>;
- };
-
- uart2: serial@10210000 {
- compatible = "rockchip,rk1108-uart", "snps,dw-apb-uart";
- reg = <0x10210000 0x100>;
- interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
- reg-shift = <2>;
- reg-io-width = <4>;
- clock-frequency = <24000000>;
- clocks = <&cru SCLK_UART2>, <&cru PCLK_UART2>;
- clock-names = "baudclk", "apb_pclk";
- pinctrl-names = "default";
- pinctrl-0 = <&uart2m0_xfer>;
- status = "disabled";
- };
-
- uart1: serial@10220000 {
- compatible = "rockchip,rk1108-uart", "snps,dw-apb-uart";
- reg = <0x10220000 0x100>;
- interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
- reg-shift = <2>;
- reg-io-width = <4>;
- clock-frequency = <24000000>;
- clocks = <&cru SCLK_UART1>, <&cru PCLK_UART1>;
- clock-names = "baudclk", "apb_pclk";
- pinctrl-names = "default";
- pinctrl-0 = <&uart1_xfer>;
- status = "disabled";
- };
-
- uart0: serial@10230000 {
- compatible = "rockchip,rk1108-uart", "snps,dw-apb-uart";
- reg = <0x10230000 0x100>;
- interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
- reg-shift = <2>;
- reg-io-width = <4>;
- clock-frequency = <24000000>;
- clocks = <&cru SCLK_UART0>, <&cru PCLK_UART0>;
- clock-names = "baudclk", "apb_pclk";
- pinctrl-names = "default";
- pinctrl-0 = <&uart0_xfer &uart0_cts &uart0_rts>;
- status = "disabled";
- };
-
- grf: syscon@10300000 {
- compatible = "rockchip,rk1108-grf", "syscon";
- reg = <0x10300000 0x1000>;
- };
-
- pmugrf: syscon@20060000 {
- compatible = "rockchip,rk1108-pmugrf", "syscon";
- reg = <0x20060000 0x1000>;
- };
-
- cru: clock-controller@20200000 {
- compatible = "rockchip,rk1108-cru";
- reg = <0x20200000 0x1000>;
- rockchip,grf = <&grf>;
- #clock-cells = <1>;
- #reset-cells = <1>;
- };
-
- emmc: dwmmc@30110000 {
- compatible = "rockchip,rk1108-dw-mshc", "rockchip,rk3288-dw-mshc";
- clock-freq-min-max = <400000 150000000>;
- clocks = <&cru HCLK_EMMC>, <&cru SCLK_EMMC>,
- <&cru SCLK_EMMC_DRV>, <&cru SCLK_EMMC_SAMPLE>;
- clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
- fifo-depth = <0x100>;
- interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
- reg = <0x30110000 0x4000>;
- status = "disabled";
- };
-
- sdio: dwmmc@30120000 {
- compatible = "rockchip,rk1108-dw-mshc", "rockchip,rk3288-dw-mshc";
- clock-freq-min-max = <400000 150000000>;
- clocks = <&cru HCLK_SDIO>, <&cru SCLK_SDIO>,
- <&cru SCLK_SDIO_DRV>, <&cru SCLK_SDIO_SAMPLE>;
- clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
- fifo-depth = <0x100>;
- interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
- reg = <0x30120000 0x4000>;
- status = "disabled";
- };
-
- sdmmc: dwmmc@30130000 {
- compatible = "rockchip,rk1108-dw-mshc", "rockchip,rk3288-dw-mshc";
- clock-freq-min-max = <400000 100000000>;
- clocks = <&cru HCLK_SDMMC>, <&cru SCLK_SDMMC>,
- <&cru SCLK_SDMMC_DRV>, <&cru SCLK_SDMMC_SAMPLE>;
- clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
- fifo-depth = <0x100>;
- interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
- reg = <0x30130000 0x4000>;
- status = "disabled";
- };
-
- gic: interrupt-controller@32010000 {
- compatible = "arm,gic-400";
- interrupt-controller;
- #interrupt-cells = <3>;
- #address-cells = <0>;
-
- reg = <0x32011000 0x1000>,
- <0x32012000 0x2000>,
- <0x32014000 0x2000>,
- <0x32016000 0x2000>;
- interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_HIGH)>;
- };
-
- pinctrl: pinctrl {
- compatible = "rockchip,rv1108-pinctrl";
- rockchip,grf = <&grf>;
- rockchip,pmu = <&pmugrf>;
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
-
- gpio0: gpio0@20030000 {
- compatible = "rockchip,gpio-bank";
- reg = <0x20030000 0x100>;
- interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&xin24m>;
-
- gpio-controller;
- #gpio-cells = <2>;
-
- interrupt-controller;
- #interrupt-cells = <2>;
- };
-
- gpio1: gpio1@10310000 {
- compatible = "rockchip,gpio-bank";
- reg = <0x10310000 0x100>;
- interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&xin24m>;
-
- gpio-controller;
- #gpio-cells = <2>;
-
- interrupt-controller;
- #interrupt-cells = <2>;
- };
-
- gpio2: gpio2@10320000 {
- compatible = "rockchip,gpio-bank";
- reg = <0x10320000 0x100>;
- interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&xin24m>;
-
- gpio-controller;
- #gpio-cells = <2>;
-
- interrupt-controller;
- #interrupt-cells = <2>;
- };
-
- gpio3: gpio3@10330000 {
- compatible = "rockchip,gpio-bank";
- reg = <0x10330000 0x100>;
- interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&xin24m>;
-
- gpio-controller;
- #gpio-cells = <2>;
-
- interrupt-controller;
- #interrupt-cells = <2>;
- };
-
- pcfg_pull_up: pcfg-pull-up {
- bias-pull-up;
- };
-
- pcfg_pull_down: pcfg-pull-down {
- bias-pull-down;
- };
-
- pcfg_pull_none: pcfg-pull-none {
- bias-disable;
- };
-
- pcfg_pull_none_drv_8ma: pcfg-pull-none-drv-8ma {
- drive-strength = <8>;
- };
-
- pcfg_pull_none_drv_12ma: pcfg-pull-none-drv-12ma {
- drive-strength = <12>;
- };
-
- pcfg_pull_up_drv_8ma: pcfg-pull-up-drv-8ma {
- bias-pull-up;
- drive-strength = <8>;
- };
-
- pcfg_pull_none_drv_4ma: pcfg-pull-none-drv-4ma {
- drive-strength = <4>;
- };
-
- pcfg_pull_up_drv_4ma: pcfg-pull-up-drv-4ma {
- bias-pull-up;
- drive-strength = <4>;
- };
-
- pcfg_output_high: pcfg-output-high {
- output-high;
- };
-
- pcfg_output_low: pcfg-output-low {
- output-low;
- };
-
- pcfg_input_high: pcfg-input-high {
- bias-pull-up;
- input-enable;
- };
-
- i2c1 {
- i2c1_xfer: i2c1-xfer {
- rockchip,pins = <2 RK_PD3 RK_FUNC_1 &pcfg_pull_up>,
- <2 RK_PD4 RK_FUNC_1 &pcfg_pull_up>;
- };
- };
-
- i2c2m1 {
- i2c2m1_xfer: i2c2m1-xfer {
- rockchip,pins = <0 RK_PC2 RK_FUNC_2 &pcfg_pull_none>,
- <0 RK_PC6 RK_FUNC_3 &pcfg_pull_none>;
- };
-
- i2c2m1_gpio: i2c2m1-gpio {
- rockchip,pins = <0 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>,
- <0 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
- };
- };
-
- i2c2m05v {
- i2c2m05v_xfer: i2c2m05v-xfer {
- rockchip,pins = <1 RK_PD5 RK_FUNC_2 &pcfg_pull_none>,
- <1 RK_PD4 RK_FUNC_2 &pcfg_pull_none>;
- };
-
- i2c2m05v_gpio: i2c2m05v-gpio {
- rockchip,pins = <1 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>,
- <1 RK_PD4 RK_FUNC_GPIO &pcfg_pull_none>;
- };
- };
-
- i2c3 {
- i2c3_xfer: i2c3-xfer {
- rockchip,pins = <0 RK_PB6 RK_FUNC_1 &pcfg_pull_none>,
- <0 RK_PC4 RK_FUNC_2 &pcfg_pull_none>;
- };
- };
-
- sdmmc {
- sdmmc_clk: sdmmc-clk {
- rockchip,pins = <3 RK_PC4 RK_FUNC_1 &pcfg_pull_none_drv_4ma>;
- };
-
- sdmmc_cmd: sdmmc-cmd {
- rockchip,pins = <3 RK_PC5 RK_FUNC_1 &pcfg_pull_up_drv_4ma>;
- };
-
- sdmmc_cd: sdmmc-cd {
- rockchip,pins = <0 RK_PA1 RK_FUNC_1 &pcfg_pull_up_drv_4ma>;
- };
-
- sdmmc_bus1: sdmmc-bus1 {
- rockchip,pins = <3 RK_PC3 RK_FUNC_1 &pcfg_pull_up_drv_4ma>;
- };
-
- sdmmc_bus4: sdmmc-bus4 {
- rockchip,pins = <3 RK_PC3 RK_FUNC_1 &pcfg_pull_up_drv_4ma>,
- <3 RK_PC2 RK_FUNC_1 &pcfg_pull_up_drv_4ma>,
- <3 RK_PC1 RK_FUNC_1 &pcfg_pull_up_drv_4ma>,
- <3 RK_PC0 RK_FUNC_1 &pcfg_pull_up_drv_4ma>;
- };
- };
-
- uart0 {
- uart0_xfer: uart0-xfer {
- rockchip,pins = <3 RK_PA6 RK_FUNC_1 &pcfg_pull_up>,
- <3 RK_PA5 RK_FUNC_1 &pcfg_pull_none>;
- };
-
- uart0_cts: uart0-cts {
- rockchip,pins = <3 RK_PA4 RK_FUNC_1 &pcfg_pull_none>;
- };
-
- uart0_rts: uart0-rts {
- rockchip,pins = <3 RK_PA3 RK_FUNC_1 &pcfg_pull_none>;
- };
-
- uart0_rts_gpio: uart0-rts-gpio {
- rockchip,pins = <3 RK_PA3 RK_FUNC_GPIO &pcfg_pull_none>;
- };
- };
-
- uart1 {
- uart1_xfer: uart1-xfer {
- rockchip,pins = <1 RK_PD3 RK_FUNC_1 &pcfg_pull_up>,
- <1 RK_PD2 RK_FUNC_1 &pcfg_pull_none>;
- };
-
- uart1_cts: uart1-cts {
- rockchip,pins = <1 RK_PD0 RK_FUNC_1 &pcfg_pull_none>;
- };
-
- uart1_rts: uart1-rts {
- rockchip,pins = <1 RK_PD1 RK_FUNC_1 &pcfg_pull_none>;
- };
- };
-
- uart2m0 {
- uart2m0_xfer: uart2m0-xfer {
- rockchip,pins = <2 RK_PD2 RK_FUNC_1 &pcfg_pull_up>,
- <2 RK_PD1 RK_FUNC_1 &pcfg_pull_none>;
- };
- };
-
- uart2m1 {
- uart2m1_xfer: uart2m1-xfer {
- rockchip,pins = <3 RK_PC3 RK_FUNC_2 &pcfg_pull_up>,
- <3 RK_PC2 RK_FUNC_2 &pcfg_pull_none>;
- };
- };
-
- uart2_5v {
- uart2_5v_cts: uart2_5v-cts {
- rockchip,pins = <1 RK_PD4 RK_FUNC_1 &pcfg_pull_none>;
- };
-
- uart2_5v_rts: uart2_5v-rts {
- rockchip,pins = <1 RK_PD5 RK_FUNC_1 &pcfg_pull_none>;
- };
- };
- };
-};
diff --git a/arch/arm/boot/dts/rk3036-kylin.dts b/arch/arm/boot/dts/rk3036-kylin.dts
index 5726135b7f8a..fdb1570bc7d3 100644
--- a/arch/arm/boot/dts/rk3036-kylin.dts
+++ b/arch/arm/boot/dts/rk3036-kylin.dts
@@ -357,7 +357,6 @@
keep-power-in-suspend;
mmc-pwrseq = <&sdio_pwrseq>;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sdio_clk &sdio_cmd &sdio_bus4>;
sd-uhs-sdr12;
@@ -372,7 +371,6 @@
cap-sd-highspeed;
card-detect-delay = <200>;
disable-wp;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sdmmc_clk>, <&sdmmc_cmd>, <&sdmmc_cd>, <&sdmmc_bus4>;
};
diff --git a/arch/arm/boot/dts/rk3036.dtsi b/arch/arm/boot/dts/rk3036.dtsi
index ec91325d3b6e..4916c65e0ace 100644
--- a/arch/arm/boot/dts/rk3036.dtsi
+++ b/arch/arm/boot/dts/rk3036.dtsi
@@ -287,7 +287,6 @@
fifo-depth = <0x100>;
mmc-ddr-1_8v;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;
resets = <&cru SRST_EMMC>;
@@ -599,7 +598,7 @@
rockchip,pins = <1 15 RK_FUNC_1 &pcfg_pull_default>;
};
- sdmmc_cd: sdmcc-cd {
+ sdmmc_cd: sdmmc-cd {
rockchip,pins = <1 17 RK_FUNC_1 &pcfg_pull_default>;
};
diff --git a/arch/arm/boot/dts/rk3066a-bqcurie2.dts b/arch/arm/boot/dts/rk3066a-bqcurie2.dts
index e1f5198723b2..ef1eabf2512c 100644
--- a/arch/arm/boot/dts/rk3066a-bqcurie2.dts
+++ b/arch/arm/boot/dts/rk3066a-bqcurie2.dts
@@ -190,7 +190,6 @@
#include "tps65910.dtsi"
&mmc0 { /* sdmmc */
- num-slots = <1>;
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&sd0_clk>, <&sd0_cmd>, <&sd0_cd>, <&sd0_bus4>;
@@ -202,7 +201,6 @@
};
&mmc1 { /* wifi */
- num-slots = <1>;
status = "okay";
non-removable;
diff --git a/arch/arm/boot/dts/rk3066a-mk808.dts b/arch/arm/boot/dts/rk3066a-mk808.dts
index 7ca1cf5241e0..13e285c53def 100644
--- a/arch/arm/boot/dts/rk3066a-mk808.dts
+++ b/arch/arm/boot/dts/rk3066a-mk808.dts
@@ -132,7 +132,6 @@
bus-width = <4>;
cap-mmc-highspeed;
cap-sd-highspeed;
- num-slots = <1>;
vmmc-supply = <&vcc_sd>;
status = "okay";
};
@@ -141,7 +140,6 @@
bus-width = <4>;
disable-wp;
non-removable;
- num-slots = <1>;
pinctrl-0 = <&sd1_clk &sd1_cmd &sd1_bus4>;
pinctrl-names = "default";
vmmc-supply = <&vcc_wifi>;
diff --git a/arch/arm/boot/dts/rk3066a-rayeager.dts b/arch/arm/boot/dts/rk3066a-rayeager.dts
index 8907deaab18e..400cbf9609e3 100644
--- a/arch/arm/boot/dts/rk3066a-rayeager.dts
+++ b/arch/arm/boot/dts/rk3066a-rayeager.dts
@@ -185,7 +185,6 @@
cap-mmc-highspeed;
disable-wp;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_clk>, <&emmc_cmd>, <&emmc_rst>;
vmmc-supply = <&vcc_emmc>;
@@ -336,7 +335,6 @@
&mmc0 {
bus-width = <4>;
disable-wp;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sd0_clk>, <&sd0_cmd>, <&sd0_cd>, <&sd0_bus4>;
vmmc-supply = <&vcc_sd>;
@@ -349,7 +347,6 @@
bus-width = <4>;
disable-wp;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sd1_clk>, <&sd1_cmd>, <&sd1_bus4>;
vmmc-supply = <&vccio_wl>;
diff --git a/arch/arm/boot/dts/rk3188-px3-evb.dts b/arch/arm/boot/dts/rk3188-px3-evb.dts
index 5b2a0b6885cd..8ba9e06062f3 100644
--- a/arch/arm/boot/dts/rk3188-px3-evb.dts
+++ b/arch/arm/boot/dts/rk3188-px3-evb.dts
@@ -89,7 +89,6 @@
cap-mmc-highspeed;
disable-wp;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_clk>, <&emmc_cmd>, <&emmc_rst>;
status = "okay";
@@ -256,7 +255,6 @@
};
&mmc0 {
- num-slots = <1>;
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&sd0_clk>, <&sd0_cmd>, <&sd0_cd>, <&sd0_bus4>;
diff --git a/arch/arm/boot/dts/rk3188-radxarock.dts b/arch/arm/boot/dts/rk3188-radxarock.dts
index ca0a1c4bc15c..53d6fc2fdbce 100644
--- a/arch/arm/boot/dts/rk3188-radxarock.dts
+++ b/arch/arm/boot/dts/rk3188-radxarock.dts
@@ -296,7 +296,6 @@
};
&mmc0 {
- num-slots = <1>;
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&sd0_clk>, <&sd0_cmd>, <&sd0_cd>, <&sd0_bus4>;
diff --git a/arch/arm/boot/dts/rk3228-evb.dts b/arch/arm/boot/dts/rk3228-evb.dts
index 58834330a5ba..1be9daacc4f9 100644
--- a/arch/arm/boot/dts/rk3228-evb.dts
+++ b/arch/arm/boot/dts/rk3228-evb.dts
@@ -50,6 +50,16 @@
device_type = "memory";
reg = <0x60000000 0x40000000>;
};
+
+ vcc_phy: vcc-phy-regulator {
+ compatible = "regulator-fixed";
+ enable-active-high;
+ regulator-name = "vcc_phy";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
};
&emmc {
@@ -60,6 +70,30 @@
status = "okay";
};
+&gmac {
+ assigned-clocks = <&cru SCLK_MAC_SRC>;
+ assigned-clock-rates = <50000000>;
+ clock_in_out = "output";
+ phy-supply = <&vcc_phy>;
+ phy-mode = "rmii";
+ phy-handle = <&phy>;
+ status = "okay";
+
+ mdio {
+ compatible = "snps,dwmac-mdio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ phy: phy@0 {
+ compatible = "ethernet-phy-id1234.d400", "ethernet-phy-ieee802.3-c22";
+ reg = <0>;
+ clocks = <&cru SCLK_MAC_PHY>;
+ resets = <&cru SRST_MACPHY>;
+ phy-is-integrated;
+ };
+ };
+};
+
&tsadc {
status = "okay";
diff --git a/arch/arm/boot/dts/rk3229-evb.dts b/arch/arm/boot/dts/rk3229-evb.dts
index 275092a950ef..73e384585755 100644
--- a/arch/arm/boot/dts/rk3229-evb.dts
+++ b/arch/arm/boot/dts/rk3229-evb.dts
@@ -40,7 +40,8 @@
/dts-v1/;
-#include "rk322x.dtsi"
+#include <dt-bindings/input/input.h>
+#include "rk3229.dtsi"
/ {
model = "Rockchip RK3229 Evaluation board";
@@ -51,6 +52,15 @@
reg = <0x60000000 0x40000000>;
};
+ dc_12v: dc-12v-regulator {
+ compatible = "regulator-fixed";
+ regulator-name = "dc_12v";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <12000000>;
+ regulator-max-microvolt = <12000000>;
+ };
+
ext_gmac: ext_gmac {
compatible = "fixed-clock";
clock-frequency = <125000000>;
@@ -58,6 +68,18 @@
#clock-cells = <0>;
};
+ vcc_host: vcc-host-regulator {
+ compatible = "regulator-fixed";
+ enable-active-high;
+ gpio = <&gpio3 RK_PC4 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&host_vbus_drv>;
+ regulator-name = "vcc_host";
+ regulator-always-on;
+ regulator-boot-on;
+ vin-supply = <&vcc_sys>;
+ };
+
vcc_phy: vcc-phy-regulator {
compatible = "regulator-fixed";
enable-active-high;
@@ -66,7 +88,96 @@
regulator-max-microvolt = <1800000>;
regulator-always-on;
regulator-boot-on;
+ vin-supply = <&vccio_1v8>;
+ };
+
+ vcc_sys: vcc-sys-regulator {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc_sys";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ vin-supply = <&dc_12v>;
+ };
+
+ vccio_1v8: vccio-1v8-regulator {
+ compatible = "regulator-fixed";
+ regulator-name = "vccio_1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ vin-supply = <&vcc_sys>;
+ };
+
+ vccio_3v3: vccio-3v3-regulator {
+ compatible = "regulator-fixed";
+ regulator-name = "vccio_3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ vin-supply = <&vcc_sys>;
};
+
+ vdd_arm: vdd-arm-regulator {
+ compatible = "pwm-regulator";
+ pwms = <&pwm1 0 25000 1>;
+ pwm-supply = <&vcc_sys>;
+ regulator-name = "vdd_arm";
+ regulator-min-microvolt = <950000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vdd_log: vdd-log-regulator {
+ compatible = "pwm-regulator";
+ pwms = <&pwm2 0 25000 1>;
+ pwm-supply = <&vcc_sys>;
+ regulator-name = "vdd_log";
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ gpio_keys {
+ compatible = "gpio-keys";
+ autorepeat;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwr_key>;
+
+ power_key: power-key {
+ label = "GPIO Key Power";
+ gpios = <&gpio3 23 GPIO_ACTIVE_LOW>;
+ linux,code = <KEY_POWER>;
+ debounce-interval = <100>;
+ wakeup-source;
+ };
+ };
+};
+
+&cpu0 {
+ cpu-supply = <&vdd_arm>;
+};
+
+&cpu1 {
+ cpu-supply = <&vdd_arm>;
+};
+
+&cpu2 {
+ cpu-supply = <&vdd_arm>;
+};
+
+&cpu3 {
+ cpu-supply = <&vdd_arm>;
+};
+
+&emmc {
+ cap-mmc-highspeed;
+ disable-wp;
+ non-removable;
+ status = "okay";
};
&gmac {
@@ -85,6 +196,96 @@
status = "okay";
};
+&io_domains {
+ status = "okay";
+
+ vccio1-supply = <&vccio_3v3>;
+ vccio2-supply = <&vccio_1v8>;
+ vccio4-supply = <&vccio_3v3>;
+};
+
+&pinctrl {
+ keys {
+ pwr_key: pwr-key {
+ rockchip,pins = <3 RK_PC7 RK_FUNC_GPIO &pcfg_pull_up>;
+ };
+ };
+
+ usb {
+ host_vbus_drv: host-vbus-drv {
+ rockchip,pins = <3 RK_PC4 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+};
+
+&pwm1 {
+ status = "okay";
+};
+
+&pwm2 {
+ status = "okay";
+};
+
+&tsadc {
+ rockchip,hw-tshut-mode = <0>; /* tshut mode 0:CRU 1:GPIO */
+ status = "okay";
+};
+
&uart2 {
status = "okay";
};
+
+&u2phy0 {
+ status = "okay";
+
+ u2phy0_otg: otg-port {
+ status = "okay";
+ };
+
+ u2phy0_host: host-port {
+ phy-supply = <&vcc_host>;
+ status = "okay";
+ };
+};
+
+&u2phy1 {
+ status = "okay";
+
+ u2phy1_otg: otg-port {
+ phy-supply = <&vcc_host>;
+ status = "okay";
+ };
+
+ u2phy1_host: host-port {
+ phy-supply = <&vcc_host>;
+ status = "okay";
+ };
+};
+
+&usb_host0_ehci {
+ status = "okay";
+};
+
+&usb_host0_ohci {
+ status = "okay";
+};
+
+&usb_host1_ehci {
+ status = "okay";
+};
+
+&usb_host1_ohci {
+ status = "okay";
+};
+
+&usb_host2_ehci {
+ status = "okay";
+};
+
+&usb_host2_ohci {
+ status = "okay";
+};
+
+&usb_otg {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/rk3229.dtsi b/arch/arm/boot/dts/rk3229.dtsi
new file mode 100644
index 000000000000..6fe6c15fc13a
--- /dev/null
+++ b/arch/arm/boot/dts/rk3229.dtsi
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2017 Fuzhou Rockchip Electronics Co., Ltd
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "rk322x.dtsi"
+
+/ {
+ compatible = "rockchip,rk3229";
+
+ /delete-node/ opp-table0;
+
+ cpu0_opp_table: opp_table0 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp-408000000 {
+ opp-hz = /bits/ 64 <408000000>;
+ opp-microvolt = <950000>;
+ clock-latency-ns = <40000>;
+ opp-suspend;
+ };
+ opp-600000000 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <975000>;
+ };
+ opp-816000000 {
+ opp-hz = /bits/ 64 <816000000>;
+ opp-microvolt = <1000000>;
+ };
+ opp-1008000000 {
+ opp-hz = /bits/ 64 <1008000000>;
+ opp-microvolt = <1175000>;
+ };
+ opp-1200000000 {
+ opp-hz = /bits/ 64 <1200000000>;
+ opp-microvolt = <1275000>;
+ };
+ opp-1296000000 {
+ opp-hz = /bits/ 64 <1296000000>;
+ opp-microvolt = <1325000>;
+ };
+ opp-1392000000 {
+ opp-hz = /bits/ 64 <1392000000>;
+ opp-microvolt = <1375000>;
+ };
+ opp-1464000000 {
+ opp-hz = /bits/ 64 <1464000000>;
+ opp-microvolt = <1400000>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/rk322x.dtsi b/arch/arm/boot/dts/rk322x.dtsi
index 48a0c1cf4301..06814421eed2 100644
--- a/arch/arm/boot/dts/rk322x.dtsi
+++ b/arch/arm/boot/dts/rk322x.dtsi
@@ -55,6 +55,7 @@
serial0 = &uart0;
serial1 = &uart1;
serial2 = &uart2;
+ spi0 = &spi0;
};
cpus {
@@ -66,13 +67,11 @@
compatible = "arm,cortex-a7";
reg = <0xf00>;
resets = <&cru SRST_CORE0>;
- operating-points = <
- /* KHz uV */
- 816000 1000000
- >;
+ operating-points-v2 = <&cpu0_opp_table>;
#cooling-cells = <2>; /* min followed by max */
clock-latency = <40000>;
clocks = <&cru ARMCLK>;
+ enable-method = "psci";
};
cpu1: cpu@f01 {
@@ -80,6 +79,8 @@
compatible = "arm,cortex-a7";
reg = <0xf01>;
resets = <&cru SRST_CORE1>;
+ operating-points-v2 = <&cpu0_opp_table>;
+ enable-method = "psci";
};
cpu2: cpu@f02 {
@@ -87,6 +88,8 @@
compatible = "arm,cortex-a7";
reg = <0xf02>;
resets = <&cru SRST_CORE2>;
+ operating-points-v2 = <&cpu0_opp_table>;
+ enable-method = "psci";
};
cpu3: cpu@f03 {
@@ -94,6 +97,36 @@
compatible = "arm,cortex-a7";
reg = <0xf03>;
resets = <&cru SRST_CORE3>;
+ operating-points-v2 = <&cpu0_opp_table>;
+ enable-method = "psci";
+ };
+ };
+
+ cpu0_opp_table: opp_table0 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp-408000000 {
+ opp-hz = /bits/ 64 <408000000>;
+ opp-microvolt = <950000>;
+ clock-latency-ns = <40000>;
+ opp-suspend;
+ };
+ opp-600000000 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <975000>;
+ };
+ opp-816000000 {
+ opp-hz = /bits/ 64 <816000000>;
+ opp-microvolt = <1000000>;
+ };
+ opp-1008000000 {
+ opp-hz = /bits/ 64 <1008000000>;
+ opp-microvolt = <1175000>;
+ };
+ opp-1200000000 {
+ opp-hz = /bits/ 64 <1200000000>;
+ opp-microvolt = <1275000>;
};
};
@@ -123,6 +156,11 @@
interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
};
+ psci {
+ compatible = "arm,psci-1.0", "arm,psci-0.2";
+ method = "smc";
+ };
+
timer {
compatible = "arm,armv7-timer";
arm,cpu-registers-not-fw-configured;
@@ -168,6 +206,19 @@
status = "disabled";
};
+ spdif: spdif@100d0000 {
+ compatible = "rockchip,rk3228-spdif";
+ reg = <0x100d0000 0x1000>;
+ interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_SPDIF>, <&cru HCLK_SPDIF_8CH>;
+ clock-names = "mclk", "hclk";
+ dmas = <&pdma 10>;
+ dma-names = "tx";
+ pinctrl-names = "default";
+ pinctrl-0 = <&spdif_tx>;
+ status = "disabled";
+ };
+
i2s2: i2s2@100e0000 {
compatible = "rockchip,rk3228-i2s", "rockchip,rk3066-i2s";
reg = <0x100e0000 0x4000>;
@@ -182,8 +233,66 @@
};
grf: syscon@11000000 {
- compatible = "syscon";
+ compatible = "syscon", "simple-mfd";
reg = <0x11000000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ io_domains: io-domains {
+ compatible = "rockchip,rk3228-io-voltage-domain";
+ status = "disabled";
+ };
+
+ u2phy0: usb2-phy@760 {
+ compatible = "rockchip,rk3228-usb2phy";
+ reg = <0x0760 0x0c>;
+ clocks = <&cru SCLK_OTGPHY0>;
+ clock-names = "phyclk";
+ clock-output-names = "usb480m_phy0";
+ #clock-cells = <0>;
+ status = "disabled";
+
+ u2phy0_otg: otg-port {
+ interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "otg-bvalid", "otg-id",
+ "linestate";
+ #phy-cells = <0>;
+ status = "disabled";
+ };
+
+ u2phy0_host: host-port {
+ interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "linestate";
+ #phy-cells = <0>;
+ status = "disabled";
+ };
+ };
+
+ u2phy1: usb2-phy@800 {
+ compatible = "rockchip,rk3228-usb2phy";
+ reg = <0x0800 0x0c>;
+ clocks = <&cru SCLK_OTGPHY1>;
+ clock-names = "phyclk";
+ clock-output-names = "usb480m_phy1";
+ #clock-cells = <0>;
+ status = "disabled";
+
+ u2phy1_otg: otg-port {
+ interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "linestate";
+ #phy-cells = <0>;
+ status = "disabled";
+ };
+
+ u2phy1_host: host-port {
+ interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "linestate";
+ #phy-cells = <0>;
+ status = "disabled";
+ };
+ };
};
uart0: serial@11010000 {
@@ -228,6 +337,23 @@
status = "disabled";
};
+ efuse: efuse@11040000 {
+ compatible = "rockchip,rk3228-efuse";
+ reg = <0x11040000 0x20>;
+ clocks = <&cru PCLK_EFUSE_256>;
+ clock-names = "pclk_efuse";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ /* Data cells */
+ efuse_id: id@7 {
+ reg = <0x7 0x10>;
+ };
+ cpu_leakage: cpu_leakage@17 {
+ reg = <0x17 0x1>;
+ };
+ };
+
i2c0: i2c@11050000 {
compatible = "rockchip,rk3228-i2c";
reg = <0x11050000 0x1000>;
@@ -280,6 +406,27 @@
status = "disabled";
};
+ spi0: spi@11090000 {
+ compatible = "rockchip,rk3228-spi";
+ reg = <0x11090000 0x1000>;
+ interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&cru SCLK_SPI0>, <&cru PCLK_SPI0>;
+ clock-names = "spiclk", "apb_pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi0_clk &spi0_tx &spi0_rx &spi0_cs0 &spi0_cs1>;
+ status = "disabled";
+ };
+
+ wdt: watchdog@110a0000 {
+ compatible = "snps,dw-wdt";
+ reg = <0x110a0000 0x100>;
+ interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru PCLK_CPU>;
+ status = "disabled";
+ };
+
pwm0: pwm@110b0000 {
compatible = "rockchip,rk3288-pwm";
reg = <0x110b0000 0x10>;
@@ -338,8 +485,18 @@
rockchip,grf = <&grf>;
#clock-cells = <1>;
#reset-cells = <1>;
- assigned-clocks = <&cru PLL_GPLL>;
- assigned-clock-rates = <594000000>;
+ assigned-clocks =
+ <&cru PLL_GPLL>, <&cru ARMCLK>,
+ <&cru PLL_CPLL>, <&cru ACLK_PERI>,
+ <&cru HCLK_PERI>, <&cru PCLK_PERI>,
+ <&cru ACLK_CPU>, <&cru HCLK_CPU>,
+ <&cru PCLK_CPU>;
+ assigned-clock-rates =
+ <594000000>, <816000000>,
+ <500000000>, <150000000>,
+ <150000000>, <75000000>,
+ <150000000>, <150000000>,
+ <75000000>;
};
thermal-zones {
@@ -388,6 +545,8 @@
interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru SCLK_TSADC>, <&cru PCLK_TSADC>;
clock-names = "tsadc", "apb_pclk";
+ assigned-clocks = <&cru SCLK_TSADC>;
+ assigned-clock-rates = <32768>;
resets = <&cru SRST_TSADC>;
reset-names = "tsadc-apb";
pinctrl-names = "init", "default", "sleep";
@@ -399,8 +558,70 @@
status = "disabled";
};
+ vpu_mmu: iommu@20020800 {
+ compatible = "rockchip,iommu";
+ reg = <0x20020800 0x100>;
+ interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "vpu_mmu";
+ iommu-cells = <0>;
+ status = "disabled";
+ };
+
+ vdec_mmu: iommu@20030480 {
+ compatible = "rockchip,iommu";
+ reg = <0x20030480 0x40>, <0x200304c0 0x40>;
+ interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "vdec_mmu";
+ iommu-cells = <0>;
+ status = "disabled";
+ };
+
+ vop_mmu: iommu@20053f00 {
+ compatible = "rockchip,iommu";
+ reg = <0x20053f00 0x100>;
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "vop_mmu";
+ iommu-cells = <0>;
+ status = "disabled";
+ };
+
+ iep_mmu: iommu@20070800 {
+ compatible = "rockchip,iommu";
+ reg = <0x20070800 0x100>;
+ interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "iep_mmu";
+ iommu-cells = <0>;
+ status = "disabled";
+ };
+
+ sdmmc: dwmmc@30000000 {
+ compatible = "rockchip,rk3228-dw-mshc", "rockchip,rk3288-dw-mshc";
+ reg = <0x30000000 0x4000>;
+ interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_SDMMC>, <&cru SCLK_SDMMC>,
+ <&cru SCLK_SDMMC_DRV>, <&cru SCLK_SDMMC_SAMPLE>;
+ clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
+ fifo-depth = <0x100>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_bus4>;
+ status = "disabled";
+ };
+
+ sdio: dwmmc@30010000 {
+ compatible = "rockchip,rk3228-dw-mshc", "rockchip,rk3288-dw-mshc";
+ reg = <0x30010000 0x4000>;
+ interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_SDIO>, <&cru SCLK_SDIO>,
+ <&cru SCLK_SDIO_DRV>, <&cru SCLK_SDIO_SAMPLE>;
+ clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
+ fifo-depth = <0x100>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdio_clk &sdio_cmd &sdio_bus4>;
+ status = "disabled";
+ };
+
emmc: dwmmc@30020000 {
- compatible = "rockchip,rk3288-dw-mshc";
+ compatible = "rockchip,rk3228-dw-mshc", "rockchip,rk3288-dw-mshc";
reg = <0x30020000 0x4000>;
interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
clock-frequency = <37500000>;
@@ -410,7 +631,6 @@
clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
bus-width = <8>;
default-sample-phase = <158>;
- num-slots = <1>;
fifo-depth = <0x100>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;
@@ -419,6 +639,89 @@
status = "disabled";
};
+ usb_otg: usb@30040000 {
+ compatible = "rockchip,rk3228-usb", "rockchip,rk3066-usb",
+ "snps,dwc2";
+ reg = <0x30040000 0x40000>;
+ interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_OTG>;
+ clock-names = "otg";
+ dr_mode = "otg";
+ g-np-tx-fifo-size = <16>;
+ g-rx-fifo-size = <280>;
+ g-tx-fifo-size = <256 128 128 64 32 16>;
+ g-use-dma;
+ phys = <&u2phy0_otg>;
+ phy-names = "usb2-phy";
+ status = "disabled";
+ };
+
+ usb_host0_ehci: usb@30080000 {
+ compatible = "generic-ehci";
+ reg = <0x30080000 0x20000>;
+ interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_HOST0>, <&u2phy0>;
+ clock-names = "usbhost", "utmi";
+ phys = <&u2phy0_host>;
+ phy-names = "usb";
+ status = "disabled";
+ };
+
+ usb_host0_ohci: usb@300a0000 {
+ compatible = "generic-ohci";
+ reg = <0x300a0000 0x20000>;
+ interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_HOST0>, <&u2phy0>;
+ clock-names = "usbhost", "utmi";
+ phys = <&u2phy0_host>;
+ phy-names = "usb";
+ status = "disabled";
+ };
+
+ usb_host1_ehci: usb@300c0000 {
+ compatible = "generic-ehci";
+ reg = <0x300c0000 0x20000>;
+ interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_HOST1>, <&u2phy1>;
+ clock-names = "usbhost", "utmi";
+ phys = <&u2phy1_otg>;
+ phy-names = "usb";
+ status = "disabled";
+ };
+
+ usb_host1_ohci: usb@300e0000 {
+ compatible = "generic-ohci";
+ reg = <0x300e0000 0x20000>;
+ interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_HOST1>, <&u2phy1>;
+ clock-names = "usbhost", "utmi";
+ phys = <&u2phy1_otg>;
+ phy-names = "usb";
+ status = "disabled";
+ };
+
+ usb_host2_ehci: usb@30100000 {
+ compatible = "generic-ehci";
+ reg = <0x30100000 0x20000>;
+ interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_HOST2>, <&u2phy1>;
+ phys = <&u2phy1_host>;
+ phy-names = "usb";
+ clock-names = "usbhost", "utmi";
+ status = "disabled";
+ };
+
+ usb_host2_ohci: usb@30120000 {
+ compatible = "generic-ohci";
+ reg = <0x30120000 0x20000>;
+ interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_HOST2>, <&u2phy1>;
+ clock-names = "usbhost", "utmi";
+ phys = <&u2phy1_host>;
+ phy-names = "usb";
+ status = "disabled";
+ };
+
gmac: ethernet@30200000 {
compatible = "rockchip,rk3228-gmac";
reg = <0x30200000 0x10000>;
@@ -526,6 +829,40 @@
drive-strength = <12>;
};
+ sdmmc {
+ sdmmc_clk: sdmmc-clk {
+ rockchip,pins = <1 RK_PC0 1 &pcfg_pull_none_drv_12ma>;
+ };
+
+ sdmmc_cmd: sdmmc-cmd {
+ rockchip,pins = <1 RK_PB7 1 &pcfg_pull_none_drv_12ma>;
+ };
+
+ sdmmc_bus4: sdmmc-bus4 {
+ rockchip,pins = <1 RK_PC2 1 &pcfg_pull_none_drv_12ma>,
+ <1 RK_PC3 1 &pcfg_pull_none_drv_12ma>,
+ <1 RK_PC4 1 &pcfg_pull_none_drv_12ma>,
+ <1 RK_PC5 1 &pcfg_pull_none_drv_12ma>;
+ };
+ };
+
+ sdio {
+ sdio_clk: sdio-clk {
+ rockchip,pins = <3 RK_PA0 1 &pcfg_pull_none_drv_12ma>;
+ };
+
+ sdio_cmd: sdio-cmd {
+ rockchip,pins = <3 RK_PA1 1 &pcfg_pull_none_drv_12ma>;
+ };
+
+ sdio_bus4: sdio-bus4 {
+ rockchip,pins = <3 RK_PA2 1 &pcfg_pull_none_drv_12ma>,
+ <3 RK_PA3 1 &pcfg_pull_none_drv_12ma>,
+ <3 RK_PA4 1 &pcfg_pull_none_drv_12ma>,
+ <3 RK_PA5 1 &pcfg_pull_none_drv_12ma>;
+ };
+ };
+
emmc {
emmc_clk: emmc-clk {
rockchip,pins = <2 7 RK_FUNC_2 &pcfg_pull_none>;
@@ -613,6 +950,42 @@
};
};
+ spi-0 {
+ spi0_clk: spi0-clk {
+ rockchip,pins = <0 9 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi0_cs0: spi0-cs0 {
+ rockchip,pins = <0 14 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi0_tx: spi0-tx {
+ rockchip,pins = <0 11 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi0_rx: spi0-rx {
+ rockchip,pins = <0 13 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi0_cs1: spi0-cs1 {
+ rockchip,pins = <1 12 RK_FUNC_1 &pcfg_pull_up>;
+ };
+ };
+
+ spi-1 {
+ spi1_clk: spi1-clk {
+ rockchip,pins = <0 23 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi1_cs0: spi1-cs0 {
+ rockchip,pins = <2 2 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi1_rx: spi1-rx {
+ rockchip,pins = <2 0 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi1_tx: spi1-tx {
+ rockchip,pins = <2 1 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi1_cs1: spi1-cs1 {
+ rockchip,pins = <2 3 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ };
+
i2s1 {
i2s1_bus: i2s1-bus {
rockchip,pins = <0 8 RK_FUNC_1 &pcfg_pull_none>,
@@ -621,9 +994,9 @@
<0 12 RK_FUNC_1 &pcfg_pull_none>,
<0 13 RK_FUNC_1 &pcfg_pull_none>,
<0 14 RK_FUNC_1 &pcfg_pull_none>,
- <1 2 RK_FUNC_1 &pcfg_pull_none>,
- <1 4 RK_FUNC_1 &pcfg_pull_none>,
- <1 5 RK_FUNC_1 &pcfg_pull_none>;
+ <1 2 RK_FUNC_2 &pcfg_pull_none>,
+ <1 4 RK_FUNC_2 &pcfg_pull_none>,
+ <1 5 RK_FUNC_2 &pcfg_pull_none>;
};
};
@@ -651,6 +1024,12 @@
};
};
+ spdif {
+ spdif_tx: spdif-tx {
+ rockchip,pins = <3 31 RK_FUNC_2 &pcfg_pull_none>;
+ };
+ };
+
tsadc {
otp_gpio: otp-gpio {
rockchip,pins = <0 24 RK_FUNC_GPIO &pcfg_pull_none>;
@@ -693,10 +1072,15 @@
uart2 {
uart2_xfer: uart2-xfer {
- rockchip,pins = <1 18 RK_FUNC_2 &pcfg_pull_none>,
+ rockchip,pins = <1 18 RK_FUNC_2 &pcfg_pull_up>,
<1 19 RK_FUNC_2 &pcfg_pull_none>;
};
+ uart21_xfer: uart21-xfer {
+ rockchip,pins = <1 10 RK_FUNC_2 &pcfg_pull_up>,
+ <1 9 RK_FUNC_2 &pcfg_pull_none>;
+ };
+
uart2_cts: uart2-cts {
rockchip,pins = <0 25 RK_FUNC_1 &pcfg_pull_none>;
};
diff --git a/arch/arm/boot/dts/rk3288-evb.dtsi b/arch/arm/boot/dts/rk3288-evb.dtsi
index 0dec94c3583b..39b61dce97ad 100644
--- a/arch/arm/boot/dts/rk3288-evb.dtsi
+++ b/arch/arm/boot/dts/rk3288-evb.dtsi
@@ -45,7 +45,44 @@
/ {
memory@0 {
device_type = "memory";
- reg = <0x0 0x80000000>;
+ reg = <0x0 0x0 0x0 0x80000000>;
+ };
+
+ adc-keys {
+ compatible = "adc-keys";
+ io-channels = <&saradc 1>;
+ io-channel-names = "buttons";
+ keyup-threshold-microvolt = <1800000>;
+
+ button-up {
+ label = "Volume Up";
+ linux,code = <KEY_VOLUMEUP>;
+ press-threshold-microvolt = <100000>;
+ };
+
+ button-down {
+ label = "Volume Down";
+ linux,code = <KEY_VOLUMEDOWN>;
+ press-threshold-microvolt = <300000>;
+ };
+
+ menu {
+ label = "Menu";
+ linux,code = <KEY_MENU>;
+ press-threshold-microvolt = <640000>;
+ };
+
+ esc {
+ label = "Esc";
+ linux,code = <KEY_ESC>;
+ press-threshold-microvolt = <1000000>;
+ };
+
+ home {
+ label = "Home";
+ linux,code = <KEY_HOME>;
+ press-threshold-microvolt = <1300000>;
+ };
};
backlight: backlight {
@@ -212,19 +249,22 @@
cap-mmc-highspeed;
disable-wp;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_pwr &emmc_bus8>;
status = "okay";
};
+&saradc {
+ vref-supply = <&vcc_18>;
+ status = "okay";
+};
+
&sdmmc {
bus-width = <4>;
cap-mmc-highspeed;
cap-sd-highspeed;
card-detect-delay = <200>;
disable-wp; /* wp not hooked up */
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
status = "okay";
@@ -248,6 +288,11 @@
status = "ok";
};
+&gpu {
+ mali-supply = <&vdd_gpu>;
+ status = "okay";
+};
+
&hdmi {
ddc-i2c-bus = <&i2c5>;
status = "okay";
diff --git a/arch/arm/boot/dts/rk3288-fennec.dts b/arch/arm/boot/dts/rk3288-fennec.dts
index 61d1c1028317..41405974253a 100644
--- a/arch/arm/boot/dts/rk3288-fennec.dts
+++ b/arch/arm/boot/dts/rk3288-fennec.dts
@@ -47,7 +47,7 @@
compatible = "rockchip,rk3288-fennec", "rockchip,rk3288";
memory@0 {
- reg = <0x0 0x80000000>;
+ reg = <0x0 0x0 0x0 0x80000000>;
device_type = "memory";
};
@@ -77,7 +77,6 @@
cap-mmc-highspeed;
disable-wp;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_pwr &emmc_bus8>;
status = "okay";
@@ -99,6 +98,11 @@
status = "okay";
};
+&gpu {
+ mali-supply = <&vdd_gpu>;
+ status = "okay";
+};
+
&hdmi {
status = "okay";
};
diff --git a/arch/arm/boot/dts/rk3288-firefly-reload-core.dtsi b/arch/arm/boot/dts/rk3288-firefly-reload-core.dtsi
index 813496618d08..5f05815f47e0 100644
--- a/arch/arm/boot/dts/rk3288-firefly-reload-core.dtsi
+++ b/arch/arm/boot/dts/rk3288-firefly-reload-core.dtsi
@@ -47,7 +47,7 @@
/ {
memory@0 {
device_type = "memory";
- reg = <0 0x80000000>;
+ reg = <0x0 0x0 0x0 0x80000000>;
};
ext_gmac: external-gmac-clock {
@@ -78,7 +78,6 @@
mmc-ddr-1_8v;
mmc-hs200-1_8v;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_clk>, <&emmc_cmd>, <&emmc_pwr>, <&emmc_bus8>;
vmmc-supply = <&vcc_io>;
diff --git a/arch/arm/boot/dts/rk3288-firefly-reload.dts b/arch/arm/boot/dts/rk3288-firefly-reload.dts
index d0b3204a4799..7da0947ababb 100644
--- a/arch/arm/boot/dts/rk3288-firefly-reload.dts
+++ b/arch/arm/boot/dts/rk3288-firefly-reload.dts
@@ -48,6 +48,19 @@
model = "Firefly-RK3288-reload";
compatible = "firefly,firefly-rk3288-reload", "rockchip,rk3288";
+ adc-keys {
+ compatible = "adc-keys";
+ io-channels = <&saradc 1>;
+ io-channel-names = "buttons";
+ keyup-threshold-microvolt = <1800000>;
+
+ button-recovery {
+ label = "Recovery";
+ linux,code = <KEY_VENDOR>;
+ press-threshold-microvolt = <0>;
+ };
+ };
+
gpio-keys {
compatible = "gpio-keys";
@@ -246,13 +259,16 @@
status = "okay";
};
+&saradc {
+ status = "okay";
+};
+
&sdmmc {
bus-width = <4>;
cap-mmc-highspeed;
cap-sd-highspeed;
card-detect-delay = <200>;
disable-wp;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sdmmc_clk>, <&sdmmc_cmd>, <&sdmmc_cd>, <&sdmmc_bus4>;
vmmc-supply = <&vcc_sd>;
@@ -267,7 +283,6 @@
disable-wp;
mmc-pwrseq = <&sdio_pwrseq>;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sdio0_bus4>, <&sdio0_cmd>, <&sdio0_clk>, <&sdio0_int>;
sd-uhs-sdr12;
diff --git a/arch/arm/boot/dts/rk3288-firefly.dtsi b/arch/arm/boot/dts/rk3288-firefly.dtsi
index 10793ac18599..b9e6f3a97240 100644
--- a/arch/arm/boot/dts/rk3288-firefly.dtsi
+++ b/arch/arm/boot/dts/rk3288-firefly.dtsi
@@ -46,7 +46,20 @@
/ {
memory@0 {
device_type = "memory";
- reg = <0 0x80000000>;
+ reg = <0x0 0x0 0x0 0x80000000>;
+ };
+
+ adc-keys {
+ compatible = "adc-keys";
+ io-channels = <&saradc 1>;
+ io-channel-names = "buttons";
+ keyup-threshold-microvolt = <1800000>;
+
+ button-recovery {
+ label = "Recovery";
+ linux,code = <KEY_VENDOR>;
+ press-threshold-microvolt = <0>;
+ };
};
dovdd_1v8: dovdd-1v8-regulator {
@@ -195,7 +208,6 @@
cap-mmc-highspeed;
disable-wp;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_clk>, <&emmc_cmd>, <&emmc_pwr>, <&emmc_bus8>;
vmmc-supply = <&vcc_io>;
@@ -219,6 +231,11 @@
status = "ok";
};
+&gpu {
+ mali-supply = <&vdd_gpu>;
+ status = "okay";
+};
+
&hdmi {
ddc-i2c-bus = <&i2c5>;
status = "okay";
@@ -509,7 +526,6 @@
bus-width = <4>;
disable-wp;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sdio0_bus4>, <&sdio0_cmd>, <&sdio0_clk>;
vmmc-supply = <&vbat_wl>;
@@ -523,7 +539,6 @@
cap-sd-highspeed;
card-detect-delay = <200>;
disable-wp;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sdmmc_clk>, <&sdmmc_cmd>, <&sdmmc_cd>, <&sdmmc_bus4>;
vmmc-supply = <&vcc_sd>;
diff --git a/arch/arm/boot/dts/rk3288-miqi.dts b/arch/arm/boot/dts/rk3288-miqi.dts
index 30e93f694ae8..4d923aa6ed11 100644
--- a/arch/arm/boot/dts/rk3288-miqi.dts
+++ b/arch/arm/boot/dts/rk3288-miqi.dts
@@ -54,7 +54,7 @@
memory@0 {
device_type = "memory";
- reg = <0 0x80000000>;
+ reg = <0x0 0x0 0x0 0x80000000>;
};
ext_gmac: external-gmac-clock {
@@ -126,7 +126,6 @@
cap-mmc-highspeed;
disable-wp;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_clk>, <&emmc_cmd>, <&emmc_pwr>, <&emmc_bus8>;
vmmc-supply = <&vcc_io>;
@@ -404,7 +403,6 @@
cap-sd-highspeed;
card-detect-delay = <200>;
disable-wp;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sdmmc_clk>, <&sdmmc_cmd>, <&sdmmc_cd>, <&sdmmc_bus4>;
vmmc-supply = <&vcc_sd>;
diff --git a/arch/arm/boot/dts/rk3288-phycore-rdk.dts b/arch/arm/boot/dts/rk3288-phycore-rdk.dts
index 3dda79579b51..1241cbcfc16f 100644
--- a/arch/arm/boot/dts/rk3288-phycore-rdk.dts
+++ b/arch/arm/boot/dts/rk3288-phycore-rdk.dts
@@ -263,7 +263,6 @@
cap-sd-highspeed;
card-detect-delay = <200>;
disable-wp;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
vmmc-supply = <&vdd_io_sd>;
diff --git a/arch/arm/boot/dts/rk3288-phycore-som.dtsi b/arch/arm/boot/dts/rk3288-phycore-som.dtsi
index 26cd3ad45160..99cfae875e12 100644
--- a/arch/arm/boot/dts/rk3288-phycore-som.dtsi
+++ b/arch/arm/boot/dts/rk3288-phycore-som.dtsi
@@ -55,7 +55,7 @@
*/
memory {
device_type = "memory";
- reg = <0 0x8000000>;
+ reg = <0x0 0x0 0x0 0x8000000>;
};
aliases {
@@ -136,7 +136,6 @@
cap-mmc-highspeed;
disable-wp;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_pwr &emmc_bus8>;
vmmc-supply = <&vdd_3v3_io>;
diff --git a/arch/arm/boot/dts/rk3288-popmetal.dts b/arch/arm/boot/dts/rk3288-popmetal.dts
index aa1f9ecff231..f084e0c8dcb3 100644
--- a/arch/arm/boot/dts/rk3288-popmetal.dts
+++ b/arch/arm/boot/dts/rk3288-popmetal.dts
@@ -50,7 +50,7 @@
memory@0 {
device_type = "memory";
- reg = <0 0x80000000>;
+ reg = <0x0 0x0 0x0 0x80000000>;
};
ext_gmac: external-gmac-clock {
@@ -150,7 +150,6 @@
mmc-ddr-1_8v;
mmc-hs200-1_8v;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_pwr &emmc_bus8>;
vmmc-supply = <&vcc_io>;
@@ -164,7 +163,6 @@
cap-sd-highspeed;
card-detect-delay = <200>;
disable-wp; /* wp not hooked up */
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
sd-uhs-sdr12;
diff --git a/arch/arm/boot/dts/rk3288-r89.dts b/arch/arm/boot/dts/rk3288-r89.dts
index 1145b62edde7..e95215c9788b 100644
--- a/arch/arm/boot/dts/rk3288-r89.dts
+++ b/arch/arm/boot/dts/rk3288-r89.dts
@@ -50,7 +50,7 @@
memory@0 {
device_type = "memory";
- reg = <0x0 0x80000000>;
+ reg = <0x0 0x0 0x0 0x80000000>;
};
ext_gmac: external-gmac-clock {
@@ -354,7 +354,6 @@
cap-sd-highspeed;
card-detect-delay = <200>;
disable-wp;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
vmmc-supply = <&vcc_sdmmc>;
diff --git a/arch/arm/boot/dts/rk3288-rock2-som.dtsi b/arch/arm/boot/dts/rk3288-rock2-som.dtsi
index f0778a46bca9..b9c471fcbd42 100644
--- a/arch/arm/boot/dts/rk3288-rock2-som.dtsi
+++ b/arch/arm/boot/dts/rk3288-rock2-som.dtsi
@@ -43,7 +43,7 @@
/ {
memory@0 {
- reg = <0x0 0x80000000>;
+ reg = <0x0 0x0 0x0 0x80000000>;
device_type = "memory";
};
@@ -89,7 +89,6 @@
cap-mmc-highspeed;
disable-wp;
non-removable;
- num-slots = <1>;
mmc-pwrseq = <&emmc_pwrseq>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;
@@ -113,6 +112,11 @@
tx_delay = <0x30>;
};
+&gpu {
+ mali-supply = <&vdd_gpu>;
+ status = "okay";
+};
+
&i2c0 {
status = "okay";
diff --git a/arch/arm/boot/dts/rk3288-rock2-square.dts b/arch/arm/boot/dts/rk3288-rock2-square.dts
index a23a94811be8..0e084b8a86ac 100644
--- a/arch/arm/boot/dts/rk3288-rock2-square.dts
+++ b/arch/arm/boot/dts/rk3288-rock2-square.dts
@@ -125,10 +125,6 @@
gpio = <&gpio0 RK_PB6 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&host_vbus_drv>;
- /* Always on as the rockchip usb phy doesn't have a vbus-supply
- * property
- */
- regulator-always-on;
regulator-name = "vcc_host";
};
@@ -151,7 +147,6 @@
disable-wp;
mmc-pwrseq = <&sdio_pwrseq>;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sdio0_bus4 &sdio0_cmd &sdio0_clk &sdio0_int>;
vmmc-supply = <&vcc_io>;
@@ -165,7 +160,6 @@
cap-sd-highspeed;
card-detect-delay = <200>;
disable-wp; /* wp not hooked up */
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
vmmc-supply = <&vcc_sd>;
@@ -279,6 +273,10 @@
status = "okay";
};
+&usbphy1 {
+ vbus-supply = <&vcc_usb_host>;
+};
+
&usb_host0_ehci {
status = "okay";
};
diff --git a/arch/arm/boot/dts/rk3288-tinker.dts b/arch/arm/boot/dts/rk3288-tinker.dts
index f601c78386a9..346b0d8b474d 100644
--- a/arch/arm/boot/dts/rk3288-tinker.dts
+++ b/arch/arm/boot/dts/rk3288-tinker.dts
@@ -50,7 +50,7 @@
compatible = "asus,rk3288-tinker", "rockchip,rk3288";
memory {
- reg = <0x0 0x80000000>;
+ reg = <0x0 0x0 0x0 0x80000000>;
device_type = "memory";
};
@@ -156,6 +156,11 @@
status = "ok";
};
+&gpu {
+ mali-supply = <&vdd_gpu>;
+ status = "okay";
+};
+
&hdmi {
ddc-i2c-bus = <&i2c5>;
status = "okay";
@@ -465,7 +470,6 @@
cap-sd-highspeed;
card-detect-delay = <200>;
disable-wp; /* wp not hooked up */
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
status = "okay";
diff --git a/arch/arm/boot/dts/rk3288-veyron-sdmmc.dtsi b/arch/arm/boot/dts/rk3288-veyron-sdmmc.dtsi
index aef07101e9ab..95e9bee8bca2 100644
--- a/arch/arm/boot/dts/rk3288-veyron-sdmmc.dtsi
+++ b/arch/arm/boot/dts/rk3288-veyron-sdmmc.dtsi
@@ -117,7 +117,6 @@
card-detect-delay = <200>;
cd-gpios = <&gpio7 RK_PA5 GPIO_ACTIVE_LOW>;
rockchip,default-sample-phase = <90>;
- num-slots = <1>;
sd-uhs-sdr12;
sd-uhs-sdr25;
sd-uhs-sdr50;
diff --git a/arch/arm/boot/dts/rk3288-veyron.dtsi b/arch/arm/boot/dts/rk3288-veyron.dtsi
index 5d1eb0a25827..6e5bd8974f22 100644
--- a/arch/arm/boot/dts/rk3288-veyron.dtsi
+++ b/arch/arm/boot/dts/rk3288-veyron.dtsi
@@ -49,7 +49,7 @@
/ {
memory@0 {
device_type = "memory";
- reg = <0x0 0x80000000>;
+ reg = <0x0 0x0 0x0 0x80000000>;
};
gpio_keys: gpio-keys {
@@ -156,11 +156,15 @@
mmc-hs200-1_8v;
mmc-pwrseq = <&emmc_pwrseq>;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;
};
+&gpu {
+ mali-supply = <&vdd_gpu>;
+ status = "okay";
+};
+
&hdmi {
ddc-i2c-bus = <&i2c5>;
status = "okay";
@@ -367,7 +371,6 @@
keep-power-in-suspend;
mmc-pwrseq = <&sdio_pwrseq>;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sdio0_clk &sdio0_cmd &sdio0_bus4>;
sd-uhs-sdr12;
diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index ad5d6022e95f..356ed1e62452 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -43,13 +43,14 @@
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/pinctrl/rockchip.h>
#include <dt-bindings/clock/rk3288-cru.h>
+#include <dt-bindings/power/rk3288-power.h>
#include <dt-bindings/thermal/thermal.h>
#include <dt-bindings/power/rk3288-power.h>
#include <dt-bindings/soc/rockchip,boot-mode.h>
/ {
- #address-cells = <1>;
- #size-cells = <1>;
+ #address-cells = <2>;
+ #size-cells = <2>;
compatible = "rockchip,rk3288";
@@ -138,13 +139,13 @@
amba {
compatible = "simple-bus";
- #address-cells = <1>;
- #size-cells = <1>;
+ #address-cells = <2>;
+ #size-cells = <2>;
ranges;
dmac_peri: dma-controller@ff250000 {
compatible = "arm,pl330", "arm,primecell";
- reg = <0xff250000 0x4000>;
+ reg = <0x0 0xff250000 0x0 0x4000>;
interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
#dma-cells = <1>;
@@ -155,7 +156,7 @@
dmac_bus_ns: dma-controller@ff600000 {
compatible = "arm,pl330", "arm,primecell";
- reg = <0xff600000 0x4000>;
+ reg = <0x0 0xff600000 0x0 0x4000>;
interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
#dma-cells = <1>;
@@ -167,7 +168,7 @@
dmac_bus_s: dma-controller@ffb20000 {
compatible = "arm,pl330", "arm,primecell";
- reg = <0xffb20000 0x4000>;
+ reg = <0x0 0xffb20000 0x0 0x4000>;
interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
#dma-cells = <1>;
@@ -178,8 +179,8 @@
};
reserved-memory {
- #address-cells = <1>;
- #size-cells = <1>;
+ #address-cells = <2>;
+ #size-cells = <2>;
ranges;
/*
@@ -193,7 +194,7 @@
* is found.
*/
dma-unusable@fe000000 {
- reg = <0xfe000000 0x1000000>;
+ reg = <0x0 0xfe000000 0x0 0x1000000>;
};
};
@@ -216,7 +217,7 @@
timer: timer@ff810000 {
compatible = "rockchip,rk3288-timer";
- reg = <0xff810000 0x20>;
+ reg = <0x0 0xff810000 0x0 0x20>;
interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&xin24m>, <&cru PCLK_TIMER>;
clock-names = "timer", "pclk";
@@ -235,7 +236,7 @@
clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
fifo-depth = <0x100>;
interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
- reg = <0xff0c0000 0x4000>;
+ reg = <0x0 0xff0c0000 0x0 0x4000>;
resets = <&cru SRST_MMC0>;
reset-names = "reset";
status = "disabled";
@@ -249,7 +250,7 @@
clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
fifo-depth = <0x100>;
interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
- reg = <0xff0d0000 0x4000>;
+ reg = <0x0 0xff0d0000 0x0 0x4000>;
resets = <&cru SRST_SDIO0>;
reset-names = "reset";
status = "disabled";
@@ -263,7 +264,7 @@
clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
fifo-depth = <0x100>;
interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
- reg = <0xff0e0000 0x4000>;
+ reg = <0x0 0xff0e0000 0x0 0x4000>;
resets = <&cru SRST_SDIO1>;
reset-names = "reset";
status = "disabled";
@@ -277,7 +278,7 @@
clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
fifo-depth = <0x100>;
interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
- reg = <0xff0f0000 0x4000>;
+ reg = <0x0 0xff0f0000 0x0 0x4000>;
resets = <&cru SRST_EMMC>;
reset-names = "reset";
status = "disabled";
@@ -285,7 +286,7 @@
saradc: saradc@ff100000 {
compatible = "rockchip,saradc";
- reg = <0xff100000 0x100>;
+ reg = <0x0 0xff100000 0x0 0x100>;
interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
#io-channel-cells = <1>;
clocks = <&cru SCLK_SARADC>, <&cru PCLK_SARADC>;
@@ -304,7 +305,7 @@
interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&spi0_clk &spi0_tx &spi0_rx &spi0_cs0>;
- reg = <0xff110000 0x1000>;
+ reg = <0x0 0xff110000 0x0 0x1000>;
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
@@ -319,7 +320,7 @@
interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&spi1_clk &spi1_tx &spi1_rx &spi1_cs0>;
- reg = <0xff120000 0x1000>;
+ reg = <0x0 0xff120000 0x0 0x1000>;
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
@@ -334,7 +335,7 @@
interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&spi2_clk &spi2_tx &spi2_rx &spi2_cs0>;
- reg = <0xff130000 0x1000>;
+ reg = <0x0 0xff130000 0x0 0x1000>;
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
@@ -342,7 +343,7 @@
i2c1: i2c@ff140000 {
compatible = "rockchip,rk3288-i2c";
- reg = <0xff140000 0x1000>;
+ reg = <0x0 0xff140000 0x0 0x1000>;
interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
@@ -355,7 +356,7 @@
i2c3: i2c@ff150000 {
compatible = "rockchip,rk3288-i2c";
- reg = <0xff150000 0x1000>;
+ reg = <0x0 0xff150000 0x0 0x1000>;
interrupts = <GIC_SPI 63 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
@@ -368,7 +369,7 @@
i2c4: i2c@ff160000 {
compatible = "rockchip,rk3288-i2c";
- reg = <0xff160000 0x1000>;
+ reg = <0x0 0xff160000 0x0 0x1000>;
interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
@@ -381,7 +382,7 @@
i2c5: i2c@ff170000 {
compatible = "rockchip,rk3288-i2c";
- reg = <0xff170000 0x1000>;
+ reg = <0x0 0xff170000 0x0 0x1000>;
interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
@@ -394,7 +395,7 @@
uart0: serial@ff180000 {
compatible = "rockchip,rk3288-uart", "snps,dw-apb-uart";
- reg = <0xff180000 0x100>;
+ reg = <0x0 0xff180000 0x0 0x100>;
interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
@@ -407,7 +408,7 @@
uart1: serial@ff190000 {
compatible = "rockchip,rk3288-uart", "snps,dw-apb-uart";
- reg = <0xff190000 0x100>;
+ reg = <0x0 0xff190000 0x0 0x100>;
interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
@@ -420,7 +421,7 @@
uart2: serial@ff690000 {
compatible = "rockchip,rk3288-uart", "snps,dw-apb-uart";
- reg = <0xff690000 0x100>;
+ reg = <0x0 0xff690000 0x0 0x100>;
interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
@@ -433,7 +434,7 @@
uart3: serial@ff1b0000 {
compatible = "rockchip,rk3288-uart", "snps,dw-apb-uart";
- reg = <0xff1b0000 0x100>;
+ reg = <0x0 0xff1b0000 0x0 0x100>;
interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
@@ -446,7 +447,7 @@
uart4: serial@ff1c0000 {
compatible = "rockchip,rk3288-uart", "snps,dw-apb-uart";
- reg = <0xff1c0000 0x100>;
+ reg = <0x0 0xff1c0000 0x0 0x100>;
interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
@@ -534,7 +535,7 @@
tsadc: tsadc@ff280000 {
compatible = "rockchip,rk3288-tsadc";
- reg = <0xff280000 0x100>;
+ reg = <0x0 0xff280000 0x0 0x100>;
interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru SCLK_TSADC>, <&cru PCLK_TSADC>;
clock-names = "tsadc", "apb_pclk";
@@ -551,7 +552,7 @@
gmac: ethernet@ff290000 {
compatible = "rockchip,rk3288-gmac";
- reg = <0xff290000 0x10000>;
+ reg = <0x0 0xff290000 0x0 0x10000>;
interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "macirq", "eth_wake_irq";
@@ -571,7 +572,7 @@
usb_host0_ehci: usb@ff500000 {
compatible = "generic-ehci";
- reg = <0xff500000 0x100>;
+ reg = <0x0 0xff500000 0x0 0x100>;
interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru HCLK_USBHOST0>;
clock-names = "usbhost";
@@ -585,7 +586,7 @@
usb_host1: usb@ff540000 {
compatible = "rockchip,rk3288-usb", "rockchip,rk3066-usb",
"snps,dwc2";
- reg = <0xff540000 0x40000>;
+ reg = <0x0 0xff540000 0x0 0x40000>;
interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru HCLK_USBHOST1>;
clock-names = "otg";
@@ -598,7 +599,7 @@
usb_otg: usb@ff580000 {
compatible = "rockchip,rk3288-usb", "rockchip,rk3066-usb",
"snps,dwc2";
- reg = <0xff580000 0x40000>;
+ reg = <0x0 0xff580000 0x0 0x40000>;
interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru HCLK_OTG0>;
clock-names = "otg";
@@ -613,7 +614,7 @@
usb_hsic: usb@ff5c0000 {
compatible = "generic-ehci";
- reg = <0xff5c0000 0x100>;
+ reg = <0x0 0xff5c0000 0x0 0x100>;
interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru HCLK_HSIC>;
clock-names = "usbhost";
@@ -622,7 +623,7 @@
i2c0: i2c@ff650000 {
compatible = "rockchip,rk3288-i2c";
- reg = <0xff650000 0x1000>;
+ reg = <0x0 0xff650000 0x0 0x1000>;
interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
@@ -635,7 +636,7 @@
i2c2: i2c@ff660000 {
compatible = "rockchip,rk3288-i2c";
- reg = <0xff660000 0x1000>;
+ reg = <0x0 0xff660000 0x0 0x1000>;
interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
@@ -648,7 +649,7 @@
pwm0: pwm@ff680000 {
compatible = "rockchip,rk3288-pwm";
- reg = <0xff680000 0x10>;
+ reg = <0x0 0xff680000 0x0 0x10>;
#pwm-cells = <3>;
pinctrl-names = "default";
pinctrl-0 = <&pwm0_pin>;
@@ -659,7 +660,7 @@
pwm1: pwm@ff680010 {
compatible = "rockchip,rk3288-pwm";
- reg = <0xff680010 0x10>;
+ reg = <0x0 0xff680010 0x0 0x10>;
#pwm-cells = <3>;
pinctrl-names = "default";
pinctrl-0 = <&pwm1_pin>;
@@ -670,7 +671,7 @@
pwm2: pwm@ff680020 {
compatible = "rockchip,rk3288-pwm";
- reg = <0xff680020 0x10>;
+ reg = <0x0 0xff680020 0x0 0x10>;
#pwm-cells = <3>;
pinctrl-names = "default";
pinctrl-0 = <&pwm2_pin>;
@@ -681,7 +682,7 @@
pwm3: pwm@ff680030 {
compatible = "rockchip,rk3288-pwm";
- reg = <0xff680030 0x10>;
+ reg = <0x0 0xff680030 0x0 0x10>;
#pwm-cells = <2>;
pinctrl-names = "default";
pinctrl-0 = <&pwm3_pin>;
@@ -692,10 +693,10 @@
bus_intmem@ff700000 {
compatible = "mmio-sram";
- reg = <0xff700000 0x18000>;
+ reg = <0x0 0xff700000 0x0 0x18000>;
#address-cells = <1>;
#size-cells = <1>;
- ranges = <0 0xff700000 0x18000>;
+ ranges = <0 0x0 0xff700000 0x18000>;
smp-sram@0 {
compatible = "rockchip,rk3066-smp-sram";
reg = <0x00 0x10>;
@@ -704,12 +705,12 @@
sram@ff720000 {
compatible = "rockchip,rk3288-pmu-sram", "mmio-sram";
- reg = <0xff720000 0x1000>;
+ reg = <0x0 0xff720000 0x0 0x1000>;
};
pmu: power-management@ff730000 {
compatible = "rockchip,rk3288-pmu", "syscon", "simple-mfd";
- reg = <0xff730000 0x100>;
+ reg = <0x0 0xff730000 0x0 0x100>;
power: power-controller {
compatible = "rockchip,rk3288-power-controller";
@@ -830,12 +831,12 @@
sgrf: syscon@ff740000 {
compatible = "rockchip,rk3288-sgrf", "syscon";
- reg = <0xff740000 0x1000>;
+ reg = <0x0 0xff740000 0x0 0x1000>;
};
cru: clock-controller@ff760000 {
compatible = "rockchip,rk3288-cru";
- reg = <0xff760000 0x1000>;
+ reg = <0x0 0xff760000 0x0 0x1000>;
rockchip,grf = <&grf>;
#clock-cells = <1>;
#reset-cells = <1>;
@@ -853,7 +854,7 @@
grf: syscon@ff770000 {
compatible = "rockchip,rk3288-grf", "syscon", "simple-mfd";
- reg = <0xff770000 0x1000>;
+ reg = <0x0 0xff770000 0x0 0x1000>;
edp_phy: edp-phy {
compatible = "rockchip,rk3288-dp-phy";
@@ -902,7 +903,7 @@
wdt: watchdog@ff800000 {
compatible = "rockchip,rk3288-wdt", "snps,dw-wdt";
- reg = <0xff800000 0x100>;
+ reg = <0x0 0xff800000 0x0 0x100>;
clocks = <&cru PCLK_WDT>;
interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";
@@ -910,7 +911,7 @@
spdif: sound@ff88b0000 {
compatible = "rockchip,rk3288-spdif", "rockchip,rk3066-spdif";
- reg = <0xff8b0000 0x10000>;
+ reg = <0x0 0xff8b0000 0x0 0x10000>;
#sound-dai-cells = <0>;
clock-names = "hclk", "mclk";
clocks = <&cru HCLK_SPDIF8CH>, <&cru SCLK_SPDIF8CH>;
@@ -925,7 +926,7 @@
i2s: i2s@ff890000 {
compatible = "rockchip,rk3288-i2s", "rockchip,rk3066-i2s";
- reg = <0xff890000 0x10000>;
+ reg = <0x0 0xff890000 0x0 0x10000>;
interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
@@ -942,7 +943,7 @@
crypto: cypto-controller@ff8a0000 {
compatible = "rockchip,rk3288-crypto";
- reg = <0xff8a0000 0x4000>;
+ reg = <0x0 0xff8a0000 0x0 0x4000>;
interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru ACLK_CRYPTO>, <&cru HCLK_CRYPTO>,
<&cru SCLK_CRYPTO>, <&cru ACLK_DMAC1>;
@@ -952,9 +953,28 @@
status = "okay";
};
+ iep_mmu: iommu@ff900800 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff900800 0x0 0x40>;
+ interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH 0>;
+ interrupt-names = "iep_mmu";
+ #iommu-cells = <0>;
+ status = "disabled";
+ };
+
+ isp_mmu: iommu@ff914000 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff914000 0x0 0x100>, <0x0 0xff915000 0x0 0x100>;
+ interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "isp_mmu";
+ #iommu-cells = <0>;
+ rockchip,disable-mmu-reset;
+ status = "disabled";
+ };
+
vopb: vop@ff930000 {
compatible = "rockchip,rk3288-vop";
- reg = <0xff930000 0x19c>;
+ reg = <0x0 0xff930000 0x0 0x19c>;
interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru ACLK_VOP0>, <&cru DCLK_VOP0>, <&cru HCLK_VOP0>;
clock-names = "aclk_vop", "dclk_vop", "hclk_vop";
@@ -987,7 +1007,7 @@
vopb_mmu: iommu@ff930300 {
compatible = "rockchip,iommu";
- reg = <0xff930300 0x100>;
+ reg = <0x0 0xff930300 0x0 0x100>;
interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "vopb_mmu";
power-domains = <&power RK3288_PD_VIO>;
@@ -997,7 +1017,7 @@
vopl: vop@ff940000 {
compatible = "rockchip,rk3288-vop";
- reg = <0xff940000 0x19c>;
+ reg = <0x0 0xff940000 0x0 0x19c>;
interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru ACLK_VOP1>, <&cru DCLK_VOP1>, <&cru HCLK_VOP1>;
clock-names = "aclk_vop", "dclk_vop", "hclk_vop";
@@ -1030,7 +1050,7 @@
vopl_mmu: iommu@ff940300 {
compatible = "rockchip,iommu";
- reg = <0xff940300 0x100>;
+ reg = <0x0 0xff940300 0x0 0x100>;
interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "vopl_mmu";
power-domains = <&power RK3288_PD_VIO>;
@@ -1040,7 +1060,7 @@
mipi_dsi: mipi@ff960000 {
compatible = "rockchip,rk3288-mipi-dsi", "snps,dw-mipi-dsi";
- reg = <0xff960000 0x4000>;
+ reg = <0x0 0xff960000 0x0 0x4000>;
interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru SCLK_MIPIDSI_24M>, <&cru PCLK_MIPI_DSI0>;
clock-names = "ref", "pclk";
@@ -1068,7 +1088,7 @@
edp: dp@ff970000 {
compatible = "rockchip,rk3288-dp";
- reg = <0xff970000 0x4000>;
+ reg = <0x0 0xff970000 0x0 0x4000>;
interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru SCLK_EDP>, <&cru PCLK_EDP_CTRL>;
clock-names = "dp", "pclk";
@@ -1100,7 +1120,7 @@
hdmi: hdmi@ff980000 {
compatible = "rockchip,rk3288-dw-hdmi";
- reg = <0xff980000 0x20000>;
+ reg = <0x0 0xff980000 0x0 0x20000>;
reg-io-width = <4>;
rockchip,grf = <&grf>;
interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
@@ -1125,74 +1145,134 @@
};
};
+ vpu_mmu: iommu@ff9a0800 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff9a0800 0x0 0x100>;
+ interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "vpu_mmu";
+ #iommu-cells = <0>;
+ status = "disabled";
+ };
+
+ hevc_mmu: iommu@ff9c0440 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff9c0440 0x0 0x40>, <0x0 0xff9c0480 0x0 0x40>;
+ interrupts = <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "hevc_mmu";
+ #iommu-cells = <0>;
+ status = "disabled";
+ };
+
+ gpu: gpu@ffa30000 {
+ compatible = "rockchip,rk3288-mali", "arm,mali-t760";
+ reg = <0x0 0xffa30000 0x0 0x10000>;
+ interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "job", "mmu", "gpu";
+ clocks = <&cru ACLK_GPU>;
+ operating-points-v2 = <&gpu_opp_table>;
+ power-domains = <&power RK3288_PD_GPU>;
+ status = "disabled";
+ };
+
+ gpu_opp_table: gpu-opp-table {
+ compatible = "operating-points-v2";
+
+ opp@100000000 {
+ opp-hz = /bits/ 64 <100000000>;
+ opp-microvolt = <950000>;
+ };
+ opp@200000000 {
+ opp-hz = /bits/ 64 <200000000>;
+ opp-microvolt = <950000>;
+ };
+ opp@300000000 {
+ opp-hz = /bits/ 64 <300000000>;
+ opp-microvolt = <1000000>;
+ };
+ opp@400000000 {
+ opp-hz = /bits/ 64 <400000000>;
+ opp-microvolt = <1100000>;
+ };
+ opp@500000000 {
+ opp-hz = /bits/ 64 <500000000>;
+ opp-microvolt = <1200000>;
+ };
+ opp@600000000 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <1250000>;
+ };
+ };
+
qos_gpu_r: qos@ffaa0000 {
compatible = "syscon";
- reg = <0xffaa0000 0x20>;
+ reg = <0x0 0xffaa0000 0x0 0x20>;
};
qos_gpu_w: qos@ffaa0080 {
compatible = "syscon";
- reg = <0xffaa0080 0x20>;
+ reg = <0x0 0xffaa0080 0x0 0x20>;
};
qos_vio1_vop: qos@ffad0000 {
compatible = "syscon";
- reg = <0xffad0000 0x20>;
+ reg = <0x0 0xffad0000 0x0 0x20>;
};
qos_vio1_isp_w0: qos@ffad0100 {
compatible = "syscon";
- reg = <0xffad0100 0x20>;
+ reg = <0x0 0xffad0100 0x0 0x20>;
};
qos_vio1_isp_w1: qos@ffad0180 {
compatible = "syscon";
- reg = <0xffad0180 0x20>;
+ reg = <0x0 0xffad0180 0x0 0x20>;
};
qos_vio0_vop: qos@ffad0400 {
compatible = "syscon";
- reg = <0xffad0400 0x20>;
+ reg = <0x0 0xffad0400 0x0 0x20>;
};
qos_vio0_vip: qos@ffad0480 {
compatible = "syscon";
- reg = <0xffad0480 0x20>;
+ reg = <0x0 0xffad0480 0x0 0x20>;
};
qos_vio0_iep: qos@ffad0500 {
compatible = "syscon";
- reg = <0xffad0500 0x20>;
+ reg = <0x0 0xffad0500 0x0 0x20>;
};
qos_vio2_rga_r: qos@ffad0800 {
compatible = "syscon";
- reg = <0xffad0800 0x20>;
+ reg = <0x0 0xffad0800 0x0 0x20>;
};
qos_vio2_rga_w: qos@ffad0880 {
compatible = "syscon";
- reg = <0xffad0880 0x20>;
+ reg = <0x0 0xffad0880 0x0 0x20>;
};
qos_vio1_isp_r: qos@ffad0900 {
compatible = "syscon";
- reg = <0xffad0900 0x20>;
+ reg = <0x0 0xffad0900 0x0 0x20>;
};
qos_video: qos@ffae0000 {
compatible = "syscon";
- reg = <0xffae0000 0x20>;
+ reg = <0x0 0xffae0000 0x0 0x20>;
};
qos_hevc_r: qos@ffaf0000 {
compatible = "syscon";
- reg = <0xffaf0000 0x20>;
+ reg = <0x0 0xffaf0000 0x0 0x20>;
};
qos_hevc_w: qos@ffaf0080 {
compatible = "syscon";
- reg = <0xffaf0080 0x20>;
+ reg = <0x0 0xffaf0080 0x0 0x20>;
};
gic: interrupt-controller@ffc01000 {
@@ -1201,16 +1281,16 @@
#interrupt-cells = <3>;
#address-cells = <0>;
- reg = <0xffc01000 0x1000>,
- <0xffc02000 0x2000>,
- <0xffc04000 0x2000>,
- <0xffc06000 0x2000>;
+ reg = <0x0 0xffc01000 0x0 0x1000>,
+ <0x0 0xffc02000 0x0 0x2000>,
+ <0x0 0xffc04000 0x0 0x2000>,
+ <0x0 0xffc06000 0x0 0x2000>;
interrupts = <GIC_PPI 9 0xf04>;
};
efuse: efuse@ffb40000 {
compatible = "rockchip,rk3288-efuse";
- reg = <0xffb40000 0x20>;
+ reg = <0x0 0xffb40000 0x0 0x20>;
#address-cells = <1>;
#size-cells = <1>;
clocks = <&cru PCLK_EFUSE256>;
@@ -1225,13 +1305,13 @@
compatible = "rockchip,rk3288-pinctrl";
rockchip,grf = <&grf>;
rockchip,pmu = <&pmu>;
- #address-cells = <1>;
- #size-cells = <1>;
+ #address-cells = <2>;
+ #size-cells = <2>;
ranges;
gpio0: gpio0@ff750000 {
compatible = "rockchip,gpio-bank";
- reg = <0xff750000 0x100>;
+ reg = <0x0 0xff750000 0x0 0x100>;
interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru PCLK_GPIO0>;
@@ -1244,7 +1324,7 @@
gpio1: gpio1@ff780000 {
compatible = "rockchip,gpio-bank";
- reg = <0xff780000 0x100>;
+ reg = <0x0 0xff780000 0x0 0x100>;
interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru PCLK_GPIO1>;
@@ -1257,7 +1337,7 @@
gpio2: gpio2@ff790000 {
compatible = "rockchip,gpio-bank";
- reg = <0xff790000 0x100>;
+ reg = <0x0 0xff790000 0x0 0x100>;
interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru PCLK_GPIO2>;
@@ -1270,7 +1350,7 @@
gpio3: gpio3@ff7a0000 {
compatible = "rockchip,gpio-bank";
- reg = <0xff7a0000 0x100>;
+ reg = <0x0 0xff7a0000 0x0 0x100>;
interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru PCLK_GPIO3>;
@@ -1283,7 +1363,7 @@
gpio4: gpio4@ff7b0000 {
compatible = "rockchip,gpio-bank";
- reg = <0xff7b0000 0x100>;
+ reg = <0x0 0xff7b0000 0x0 0x100>;
interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru PCLK_GPIO4>;
@@ -1296,7 +1376,7 @@
gpio5: gpio5@ff7c0000 {
compatible = "rockchip,gpio-bank";
- reg = <0xff7c0000 0x100>;
+ reg = <0x0 0xff7c0000 0x0 0x100>;
interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru PCLK_GPIO5>;
@@ -1309,7 +1389,7 @@
gpio6: gpio6@ff7d0000 {
compatible = "rockchip,gpio-bank";
- reg = <0xff7d0000 0x100>;
+ reg = <0x0 0xff7d0000 0x0 0x100>;
interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru PCLK_GPIO6>;
@@ -1322,7 +1402,7 @@
gpio7: gpio7@ff7e0000 {
compatible = "rockchip,gpio-bank";
- reg = <0xff7e0000 0x100>;
+ reg = <0x0 0xff7e0000 0x0 0x100>;
interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru PCLK_GPIO7>;
@@ -1335,7 +1415,7 @@
gpio8: gpio8@ff7f0000 {
compatible = "rockchip,gpio-bank";
- reg = <0xff7f0000 0x100>;
+ reg = <0x0 0xff7f0000 0x0 0x100>;
interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru PCLK_GPIO8>;
diff --git a/arch/arm/boot/dts/rv1108-evb.dts b/arch/arm/boot/dts/rv1108-evb.dts
new file mode 100644
index 000000000000..86a57f823616
--- /dev/null
+++ b/arch/arm/boot/dts/rv1108-evb.dts
@@ -0,0 +1,259 @@
+/*
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+
+#include "rv1108.dtsi"
+
+/ {
+ model = "Rockchip RV1108 Evaluation board";
+ compatible = "rockchip,rv1108-evb", "rockchip,rv1108";
+
+ memory@60000000 {
+ device_type = "memory";
+ reg = <0x60000000 0x08000000>;
+ };
+
+ chosen {
+ stdout-path = "serial2:1500000n8";
+ };
+
+ backlight: backlight {
+ compatible = "pwm-backlight";
+ brightness-levels = <
+ 0 1 2 3 4 5 6 7
+ 8 9 10 11 12 13 14 15
+ 16 17 18 19 20 21 22 23
+ 24 25 26 27 28 29 30 31
+ 32 33 34 35 36 37 38 39
+ 40 41 42 43 44 45 46 47
+ 48 49 50 51 52 53 54 55
+ 56 57 58 59 60 61 62 63
+ 64 65 66 67 68 69 70 71
+ 72 73 74 75 76 77 78 79
+ 80 81 82 83 84 85 86 87
+ 88 89 90 91 92 93 94 95
+ 96 97 98 99 100 101 102 103
+ 104 105 106 107 108 109 110 111
+ 112 113 114 115 116 117 118 119
+ 120 121 122 123 124 125 126 127
+ 128 129 130 131 132 133 134 135
+ 136 137 138 139 140 141 142 143
+ 144 145 146 147 148 149 150 151
+ 152 153 154 155 156 157 158 159
+ 160 161 162 163 164 165 166 167
+ 168 169 170 171 172 173 174 175
+ 176 177 178 179 180 181 182 183
+ 184 185 186 187 188 189 190 191
+ 192 193 194 195 196 197 198 199
+ 200 201 202 203 204 205 206 207
+ 208 209 210 211 212 213 214 215
+ 216 217 218 219 220 221 222 223
+ 224 225 226 227 228 229 230 231
+ 232 233 234 235 236 237 238 239
+ 240 241 242 243 244 245 246 247
+ 248 249 250 251 252 253 254 255>;
+ default-brightness-level = <200>;
+ pwms = <&pwm0 0 25000 0>;
+ };
+
+ vcc_sys: vsys-regulator {
+ compatible = "regulator-fixed";
+ regulator-name = "vsys";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-boot-on;
+ };
+};
+
+&cpu0 {
+ cpu-supply = <&vdd_core>;
+};
+
+&i2c0 {
+ status = "okay";
+ i2c-scl-rising-time-ns = <275>;
+ i2c-scl-falling-time-ns = <16>;
+ clock-frequency = <400000>;
+
+ rk805: pmic@18 {
+ compatible = "rockchip,rk805";
+ reg = <0x18>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <RK_PB4 IRQ_TYPE_LEVEL_LOW>;
+ rockchip,system-power-controller;
+
+ vcc1-supply = <&vcc_sys>;
+ vcc2-supply = <&vcc_sys>;
+ vcc3-supply = <&vcc_sys>;
+ vcc4-supply = <&vcc_sys>;
+ vcc5-supply = <&vcc_sys>;
+ vcc6-supply = <&vcc_sys>;
+
+ regulators {
+ vdd_core: DCDC_REG1 {
+ regulator-name= "vdd_core";
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-state-enabled;
+ regulator-state-uv = <900000>;
+ };
+ };
+
+ vdd_cam: DCDC_REG2 {
+ regulator-name= "vdd_cam";
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <2000000>;
+ regulator-state-mem {
+ regulator-state-disabled;
+ };
+ };
+
+ vcc_ddr: DCDC_REG3 {
+ regulator-name= "vcc_ddr";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-state-enabled;
+ };
+ };
+
+ vcc_io: DCDC_REG4 {
+ regulator-name= "vcc_io";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-state-enabled;
+ regulator-state-uv = <3300000>;
+ };
+ };
+
+ vdd_10: LDO_REG1 {
+ regulator-name= "vdd_10";
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1000000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-state-disabled;
+ };
+ };
+
+ vcc_18: LDO_REG2 {
+ regulator-name= "vcc_18";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-state-disabled;
+ };
+ };
+
+ vdd10_pmu: LDO_REG3 {
+ regulator-name= "vdd10_pmu";
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1000000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-state-enabled;
+ regulator-state-uv = <1000000>;
+ };
+ };
+ };
+ };
+
+ bma250: accelerometer@19 {
+ compatible = "bosch,bma250e";
+ reg = <0x19>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <RK_PB3 IRQ_TYPE_LEVEL_LOW>;
+ };
+};
+
+&pwm0 {
+ status = "okay";
+};
+
+&sdmmc {
+ status = "okay";
+};
+
+&u2phy {
+ status = "okay";
+
+ u2phy_host: host-port {
+ status = "okay";
+ };
+
+ u2phy_otg: otg-port {
+ status = "okay";
+ };
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&uart1 {
+ status = "okay";
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&usb_host_ehci {
+ status = "okay";
+};
+
+&usb_host_ohci {
+ status = "okay";
+};
+
+&usb_otg {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/rv1108.dtsi b/arch/arm/boot/dts/rv1108.dtsi
new file mode 100644
index 000000000000..e7cd1315db1b
--- /dev/null
+++ b/arch/arm/boot/dts/rv1108.dtsi
@@ -0,0 +1,801 @@
+/*
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/rv1108-cru.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ compatible = "rockchip,rv1108";
+
+ interrupt-parent = <&gic>;
+
+ aliases {
+ i2c0 = &i2c0;
+ i2c1 = &i2c1;
+ i2c2 = &i2c2;
+ i2c3 = &i2c3;
+ serial0 = &uart0;
+ serial1 = &uart1;
+ serial2 = &uart2;
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu0: cpu@f00 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0xf00>;
+ clocks = <&cru ARMCLK>;
+ operating-points-v2 = <&cpu_opp_table>;
+ };
+ };
+
+ cpu_opp_table: opp_table {
+ compatible = "operating-points-v2";
+
+ opp-408000000 {
+ opp-hz = /bits/ 64 <408000000>;
+ opp-microvolt = <975000>;
+ clock-latency-ns = <40000>;
+ };
+ opp-600000000 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <975000>;
+ clock-latency-ns = <40000>;
+ };
+ opp-816000000 {
+ opp-hz = /bits/ 64 <816000000>;
+ opp-microvolt = <1025000>;
+ clock-latency-ns = <40000>;
+ };
+ opp-1008000000 {
+ opp-hz = /bits/ 64 <1008000000>;
+ opp-microvolt = <1150000>;
+ clock-latency-ns = <40000>;
+ };
+ };
+
+ arm-pmu {
+ compatible = "arm,cortex-a7-pmu";
+ interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ timer {
+ compatible = "arm,armv7-timer";
+ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_HIGH)>,
+ <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_HIGH)>;
+ clock-frequency = <24000000>;
+ };
+
+ xin24m: oscillator {
+ compatible = "fixed-clock";
+ clock-frequency = <24000000>;
+ clock-output-names = "xin24m";
+ #clock-cells = <0>;
+ };
+
+ amba {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ pdma: pdma@102a0000 {
+ compatible = "arm,pl330", "arm,primecell";
+ reg = <0x102a0000 0x4000>;
+ interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
+ #dma-cells = <1>;
+ arm,pl330-broken-no-flushp;
+ clocks = <&cru ACLK_DMAC>;
+ clock-names = "apb_pclk";
+ };
+ };
+
+ bus_intmem@10080000 {
+ compatible = "mmio-sram";
+ reg = <0x10080000 0x2000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x10080000 0x2000>;
+ };
+
+ uart2: serial@10210000 {
+ compatible = "rockchip,rv1108-uart", "snps,dw-apb-uart";
+ reg = <0x10210000 0x100>;
+ interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ clock-frequency = <24000000>;
+ clocks = <&cru SCLK_UART2>, <&cru PCLK_UART2>;
+ clock-names = "baudclk", "apb_pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2m0_xfer>;
+ status = "disabled";
+ };
+
+ uart1: serial@10220000 {
+ compatible = "rockchip,rv1108-uart", "snps,dw-apb-uart";
+ reg = <0x10220000 0x100>;
+ interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ clock-frequency = <24000000>;
+ clocks = <&cru SCLK_UART1>, <&cru PCLK_UART1>;
+ clock-names = "baudclk", "apb_pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_xfer>;
+ status = "disabled";
+ };
+
+ uart0: serial@10230000 {
+ compatible = "rockchip,rv1108-uart", "snps,dw-apb-uart";
+ reg = <0x10230000 0x100>;
+ interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ clock-frequency = <24000000>;
+ clocks = <&cru SCLK_UART0>, <&cru PCLK_UART0>;
+ clock-names = "baudclk", "apb_pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_xfer &uart0_cts &uart0_rts>;
+ status = "disabled";
+ };
+
+ i2c1: i2c@10240000 {
+ compatible = "rockchip,rv1108-i2c";
+ reg = <0x10240000 0x1000>;
+ interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&cru SCLK_I2C1>, <&cru PCLK_I2C1>;
+ clock-names = "i2c", "pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_xfer>;
+ rockchip,grf = <&grf>;
+ status = "disabled";
+ };
+
+ i2c2: i2c@10250000 {
+ compatible = "rockchip,rv1108-i2c";
+ reg = <0x10250000 0x1000>;
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&cru SCLK_I2C2>, <&cru PCLK_I2C2>;
+ clock-names = "i2c", "pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c2m1_xfer>;
+ rockchip,grf = <&grf>;
+ status = "disabled";
+ };
+
+ i2c3: i2c@10260000 {
+ compatible = "rockchip,rv1108-i2c";
+ reg = <0x10260000 0x1000>;
+ interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&cru SCLK_I2C3>, <&cru PCLK_I2C3>;
+ clock-names = "i2c", "pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c3_xfer>;
+ rockchip,grf = <&grf>;
+ status = "disabled";
+ };
+
+ spi: spi@10270000 {
+ compatible = "rockchip,rv1108-spi";
+ reg = <0x10270000 0x1000>;
+ interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_SPI>, <&cru PCLK_SPI>;
+ clock-names = "spiclk", "apb_pclk";
+ dmas = <&pdma 8>, <&pdma 9>;
+ #dma-cells = <2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ pwm4: pwm@10280000 {
+ compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm";
+ reg = <0x10280000 0x10>;
+ interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_PWM>, <&cru PCLK_PWM>;
+ clock-names = "pwm", "pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm4_pin>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm5: pwm@10280010 {
+ compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm";
+ reg = <0x10280010 0x10>;
+ interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_PWM>, <&cru PCLK_PWM>;
+ clock-names = "pwm", "pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm5_pin>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm6: pwm@10280020 {
+ compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm";
+ reg = <0x10280020 0x10>;
+ interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_PWM>, <&cru PCLK_PWM>;
+ clock-names = "pwm", "pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm6_pin>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm7: pwm@10280030 {
+ compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm";
+ reg = <0x10280030 0x10>;
+ interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_PWM>, <&cru PCLK_PWM>;
+ clock-names = "pwm", "pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm7_pin>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ grf: syscon@10300000 {
+ compatible = "rockchip,rv1108-grf", "syscon", "simple-mfd";
+ reg = <0x10300000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ u2phy: usb2-phy@100 {
+ compatible = "rockchip,rv1108-usb2phy";
+ reg = <0x100 0x0c>;
+ clocks = <&cru SCLK_USBPHY>;
+ clock-names = "phyclk";
+ #clock-cells = <0>;
+ clock-output-names = "usbphy";
+ rockchip,usbgrf = <&usbgrf>;
+ status = "disabled";
+
+ u2phy_otg: otg-port {
+ interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "otg-mux";
+ #phy-cells = <0>;
+ status = "disabled";
+ };
+
+ u2phy_host: host-port {
+ interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "linestate";
+ #phy-cells = <0>;
+ status = "disabled";
+ };
+ };
+ };
+
+ watchdog: wdt@10360000 {
+ compatible = "snps,dw-wdt";
+ reg = <0x10360000 0x100>;
+ interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru PCLK_WDT>;
+ clock-names = "pclk_wdt";
+ status = "disabled";
+ };
+
+ adc: adc@1038c000 {
+ compatible = "rockchip,rv1108-saradc", "rockchip,rk3399-saradc";
+ reg = <0x1038c000 0x100>;
+ interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+ #io-channel-cells = <1>;
+ clock-frequency = <1000000>;
+ clocks = <&cru SCLK_SARADC>, <&cru PCLK_SARADC>;
+ clock-names = "saradc", "apb_pclk";
+ status = "disabled";
+ };
+
+ i2c0: i2c@20000000 {
+ compatible = "rockchip,rv1108-i2c";
+ reg = <0x20000000 0x1000>;
+ interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&cru SCLK_I2C0_PMU>, <&cru PCLK_I2C0_PMU>;
+ clock-names = "i2c", "pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_xfer>;
+ rockchip,grf = <&grf>;
+ status = "disabled";
+ };
+
+ pwm0: pwm@20040000 {
+ compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm";
+ reg = <0x20040000 0x10>;
+ interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_PWM0_PMU>, <&cru PCLK_PWM0_PMU>;
+ clock-names = "pwm", "pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm0_pin>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm1: pwm@20040010 {
+ compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm";
+ reg = <0x20040010 0x10>;
+ interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_PWM0_PMU>, <&cru PCLK_PWM0_PMU>;
+ clock-names = "pwm", "pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm1_pin>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm2: pwm@20040020 {
+ compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm";
+ reg = <0x20040020 0x10>;
+ interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_PWM0_PMU>, <&cru PCLK_PWM0_PMU>;
+ clock-names = "pwm", "pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm2_pin>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm3: pwm@20040030 {
+ compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm";
+ reg = <0x20040030 0x10>;
+ interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_PWM0_PMU>, <&cru PCLK_PWM0_PMU>;
+ clock-names = "pwm", "pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm3_pin>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pmugrf: syscon@20060000 {
+ compatible = "rockchip,rv1108-pmugrf", "syscon";
+ reg = <0x20060000 0x1000>;
+ };
+
+ usbgrf: syscon@202a0000 {
+ compatible = "rockchip,rv1108-usbgrf", "syscon";
+ reg = <0x202a0000 0x1000>;
+ };
+
+ cru: clock-controller@20200000 {
+ compatible = "rockchip,rv1108-cru";
+ reg = <0x20200000 0x1000>;
+ rockchip,grf = <&grf>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+ emmc: dwmmc@30110000 {
+ compatible = "rockchip,rv1108-dw-mshc", "rockchip,rk3288-dw-mshc";
+ reg = <0x30110000 0x4000>;
+ interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_EMMC>, <&cru SCLK_EMMC>,
+ <&cru SCLK_EMMC_DRV>, <&cru SCLK_EMMC_SAMPLE>;
+ clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
+ fifo-depth = <0x100>;
+ max-frequency = <150000000>;
+ status = "disabled";
+ };
+
+ sdio: dwmmc@30120000 {
+ compatible = "rockchip,rv1108-dw-mshc", "rockchip,rk3288-dw-mshc";
+ reg = <0x30120000 0x4000>;
+ interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_SDIO>, <&cru SCLK_SDIO>,
+ <&cru SCLK_SDIO_DRV>, <&cru SCLK_SDIO_SAMPLE>;
+ clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
+ fifo-depth = <0x100>;
+ max-frequency = <150000000>;
+ status = "disabled";
+ };
+
+ sdmmc: dwmmc@30130000 {
+ compatible = "rockchip,rv1108-dw-mshc", "rockchip,rk3288-dw-mshc";
+ reg = <0x30130000 0x4000>;
+ interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_SDMMC>, <&cru SCLK_SDMMC>,
+ <&cru SCLK_SDMMC_DRV>, <&cru SCLK_SDMMC_SAMPLE>;
+ clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
+ fifo-depth = <0x100>;
+ max-frequency = <100000000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
+ status = "disabled";
+ };
+
+ usb_host_ehci: usb@30140000 {
+ compatible = "generic-ehci";
+ reg = <0x30140000 0x20000>;
+ interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_HOST0>, <&u2phy>;
+ clock-names = "usbhost", "utmi";
+ phys = <&u2phy_host>;
+ phy-names = "usb";
+ status = "disabled";
+ };
+
+ usb_host_ohci: usb@30160000 {
+ compatible = "generic-ohci";
+ reg = <0x30160000 0x20000>;
+ interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_HOST0>, <&u2phy>;
+ clock-names = "usbhost", "utmi";
+ phys = <&u2phy_host>;
+ phy-names = "usb";
+ status = "disabled";
+ };
+
+ usb_otg: usb@30180000 {
+ compatible = "rockchip,rv1108-usb", "rockchip,rk3066-usb",
+ "snps,dwc2";
+ reg = <0x30180000 0x40000>;
+ interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_OTG>;
+ clock-names = "otg";
+ dr_mode = "otg";
+ g-np-tx-fifo-size = <16>;
+ g-rx-fifo-size = <280>;
+ g-tx-fifo-size = <256 128 128 64 32 16>;
+ g-use-dma;
+ phys = <&u2phy_otg>;
+ phy-names = "usb2-phy";
+ status = "disabled";
+ };
+
+ gic: interrupt-controller@32010000 {
+ compatible = "arm,gic-400";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+
+ reg = <0x32011000 0x1000>,
+ <0x32012000 0x2000>,
+ <0x32014000 0x2000>,
+ <0x32016000 0x2000>;
+ interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_HIGH)>;
+ };
+
+ pinctrl: pinctrl {
+ compatible = "rockchip,rv1108-pinctrl";
+ rockchip,grf = <&grf>;
+ rockchip,pmu = <&pmugrf>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ gpio0: gpio0@20030000 {
+ compatible = "rockchip,gpio-bank";
+ reg = <0x20030000 0x100>;
+ interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&xin24m>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpio1: gpio1@10310000 {
+ compatible = "rockchip,gpio-bank";
+ reg = <0x10310000 0x100>;
+ interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&xin24m>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpio2: gpio2@10320000 {
+ compatible = "rockchip,gpio-bank";
+ reg = <0x10320000 0x100>;
+ interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&xin24m>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpio3: gpio3@10330000 {
+ compatible = "rockchip,gpio-bank";
+ reg = <0x10330000 0x100>;
+ interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&xin24m>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pcfg_pull_up: pcfg-pull-up {
+ bias-pull-up;
+ };
+
+ pcfg_pull_down: pcfg-pull-down {
+ bias-pull-down;
+ };
+
+ pcfg_pull_none: pcfg-pull-none {
+ bias-disable;
+ };
+
+ pcfg_pull_none_drv_8ma: pcfg-pull-none-drv-8ma {
+ drive-strength = <8>;
+ };
+
+ pcfg_pull_none_drv_12ma: pcfg-pull-none-drv-12ma {
+ drive-strength = <12>;
+ };
+
+ pcfg_pull_none_smt: pcfg-pull-none-smt {
+ bias-disable;
+ input-schmitt-enable;
+ };
+
+ pcfg_pull_up_drv_8ma: pcfg-pull-up-drv-8ma {
+ bias-pull-up;
+ drive-strength = <8>;
+ };
+
+ pcfg_pull_none_drv_4ma: pcfg-pull-none-drv-4ma {
+ drive-strength = <4>;
+ };
+
+ pcfg_pull_up_drv_4ma: pcfg-pull-up-drv-4ma {
+ bias-pull-up;
+ drive-strength = <4>;
+ };
+
+ pcfg_output_high: pcfg-output-high {
+ output-high;
+ };
+
+ pcfg_output_low: pcfg-output-low {
+ output-low;
+ };
+
+ pcfg_input_high: pcfg-input-high {
+ bias-pull-up;
+ input-enable;
+ };
+
+ i2c0 {
+ i2c0_xfer: i2c0-xfer {
+ rockchip,pins = <0 RK_PB1 RK_FUNC_1 &pcfg_pull_none_smt>,
+ <0 RK_PB2 RK_FUNC_1 &pcfg_pull_none_smt>;
+ };
+ };
+
+ i2c1 {
+ i2c1_xfer: i2c1-xfer {
+ rockchip,pins = <2 RK_PD3 RK_FUNC_1 &pcfg_pull_up>,
+ <2 RK_PD4 RK_FUNC_1 &pcfg_pull_up>;
+ };
+ };
+
+ i2c2m1 {
+ i2c2m1_xfer: i2c2m1-xfer {
+ rockchip,pins = <0 RK_PC2 RK_FUNC_2 &pcfg_pull_none>,
+ <0 RK_PC6 RK_FUNC_3 &pcfg_pull_none>;
+ };
+
+ i2c2m1_gpio: i2c2m1-gpio {
+ rockchip,pins = <0 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>,
+ <0 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ i2c2m05v {
+ i2c2m05v_xfer: i2c2m05v-xfer {
+ rockchip,pins = <1 RK_PD5 RK_FUNC_2 &pcfg_pull_none>,
+ <1 RK_PD4 RK_FUNC_2 &pcfg_pull_none>;
+ };
+
+ i2c2m05v_gpio: i2c2m05v-gpio {
+ rockchip,pins = <1 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>,
+ <1 RK_PD4 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ i2c3 {
+ i2c3_xfer: i2c3-xfer {
+ rockchip,pins = <0 RK_PB6 RK_FUNC_1 &pcfg_pull_none>,
+ <0 RK_PC4 RK_FUNC_2 &pcfg_pull_none>;
+ };
+ };
+
+ pwm0 {
+ pwm0_pin: pwm0-pin {
+ rockchip,pins = <0 RK_PC5 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ pwm1 {
+ pwm1_pin: pwm1-pin {
+ rockchip,pins = <0 RK_PC4 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ pwm2 {
+ pwm2_pin: pwm2-pin {
+ rockchip,pins = <0 RK_PC6 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ pwm3 {
+ pwm3_pin: pwm3-pin {
+ rockchip,pins = <0 RK_PC0 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ pwm4 {
+ pwm4_pin: pwm4-pin {
+ rockchip,pins = <1 RK_PC1 RK_FUNC_3 &pcfg_pull_none>;
+ };
+ };
+
+ pwm5 {
+ pwm5_pin: pwm5-pin {
+ rockchip,pins = <1 RK_PA7 RK_FUNC_2 &pcfg_pull_none>;
+ };
+ };
+
+ pwm6 {
+ pwm6_pin: pwm6-pin {
+ rockchip,pins = <1 RK_PB0 RK_FUNC_2 &pcfg_pull_none>;
+ };
+ };
+
+ pwm7 {
+ pwm7_pin: pwm7-pin {
+ rockchip,pins = <1 RK_PB1 RK_FUNC_2 &pcfg_pull_none>;
+ };
+ };
+
+ sdmmc {
+ sdmmc_clk: sdmmc-clk {
+ rockchip,pins = <3 RK_PC4 RK_FUNC_1 &pcfg_pull_none_drv_4ma>;
+ };
+
+ sdmmc_cmd: sdmmc-cmd {
+ rockchip,pins = <3 RK_PC5 RK_FUNC_1 &pcfg_pull_up_drv_4ma>;
+ };
+
+ sdmmc_cd: sdmmc-cd {
+ rockchip,pins = <0 RK_PA1 RK_FUNC_1 &pcfg_pull_up_drv_4ma>;
+ };
+
+ sdmmc_bus1: sdmmc-bus1 {
+ rockchip,pins = <3 RK_PC3 RK_FUNC_1 &pcfg_pull_up_drv_4ma>;
+ };
+
+ sdmmc_bus4: sdmmc-bus4 {
+ rockchip,pins = <3 RK_PC3 RK_FUNC_1 &pcfg_pull_up_drv_4ma>,
+ <3 RK_PC2 RK_FUNC_1 &pcfg_pull_up_drv_4ma>,
+ <3 RK_PC1 RK_FUNC_1 &pcfg_pull_up_drv_4ma>,
+ <3 RK_PC0 RK_FUNC_1 &pcfg_pull_up_drv_4ma>;
+ };
+ };
+
+ uart0 {
+ uart0_xfer: uart0-xfer {
+ rockchip,pins = <3 RK_PA6 RK_FUNC_1 &pcfg_pull_up>,
+ <3 RK_PA5 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ uart0_cts: uart0-cts {
+ rockchip,pins = <3 RK_PA4 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ uart0_rts: uart0-rts {
+ rockchip,pins = <3 RK_PA3 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ uart0_rts_gpio: uart0-rts-gpio {
+ rockchip,pins = <3 RK_PA3 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ uart1 {
+ uart1_xfer: uart1-xfer {
+ rockchip,pins = <1 RK_PD3 RK_FUNC_1 &pcfg_pull_up>,
+ <1 RK_PD2 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ uart1_cts: uart1-cts {
+ rockchip,pins = <1 RK_PD0 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ uart1_rts: uart1-rts {
+ rockchip,pins = <1 RK_PD1 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ uart2m0 {
+ uart2m0_xfer: uart2m0-xfer {
+ rockchip,pins = <2 RK_PD2 RK_FUNC_1 &pcfg_pull_up>,
+ <2 RK_PD1 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ uart2m1 {
+ uart2m1_xfer: uart2m1-xfer {
+ rockchip,pins = <3 RK_PC3 RK_FUNC_2 &pcfg_pull_up>,
+ <3 RK_PC2 RK_FUNC_2 &pcfg_pull_none>;
+ };
+ };
+
+ uart2_5v {
+ uart2_5v_cts: uart2_5v-cts {
+ rockchip,pins = <1 RK_PD4 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ uart2_5v_rts: uart2_5v-rts {
+ rockchip,pins = <1 RK_PD5 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi
index 8067c71c3a38..b1a26b42d190 100644
--- a/arch/arm/boot/dts/sama5d2.dtsi
+++ b/arch/arm/boot/dts/sama5d2.dtsi
@@ -135,6 +135,12 @@
#size-cells = <1>;
ranges;
+ nfc_sram: sram@00100000 {
+ compatible = "mmio-sram";
+ no-memory-wc;
+ reg = <0x00100000 0x2400>;
+ };
+
usb0: gadget@00300000 {
#address-cells = <1>;
#size-cells = <0>;
@@ -291,6 +297,32 @@
cache-level = <2>;
};
+ ebi: ebi@10000000 {
+ compatible = "atmel,sama5d3-ebi";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ atmel,smc = <&hsmc>;
+ reg = <0x10000000 0x10000000
+ 0x60000000 0x30000000>;
+ ranges = <0x0 0x0 0x10000000 0x10000000
+ 0x1 0x0 0x60000000 0x10000000
+ 0x2 0x0 0x70000000 0x10000000
+ 0x3 0x0 0x80000000 0x10000000>;
+ clocks = <&mck>;
+ status = "disabled";
+
+ nand_controller: nand-controller {
+ compatible = "atmel,sama5d3-nand-controller";
+ atmel,nfc-sram = <&nfc_sram>;
+ atmel,nfc-io = <&nfc_io>;
+ ecc-engine = <&pmecc>;
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges;
+ status = "disabled";
+ };
+ };
+
nand0: nand@80000000 {
compatible = "atmel,sama5d2-nand";
#address-cells = <1>;
@@ -347,6 +379,11 @@
status = "disabled";
};
+ nfc_io: nfc-io@c0000000 {
+ compatible = "atmel,sama5d3-nfc-io", "syscon";
+ reg = <0xc0000000 0x8000000>;
+ };
+
apb {
compatible = "simple-bus";
#address-cells = <1>;
@@ -379,6 +416,17 @@
};
};
+ isc: isc@f0008000 {
+ compatible = "atmel,sama5d2-isc";
+ reg = <0xf0008000 0x4000>;
+ interrupts = <46 IRQ_TYPE_LEVEL_HIGH 5>;
+ clocks = <&isc_clk>, <&iscck>, <&isc_gclk>;
+ clock-names = "hclock", "iscck", "gck";
+ #clock-cells = <0>;
+ clock-output-names = "isc-mck";
+ status = "disabled";
+ };
+
ramc0: ramc@f000c000 {
compatible = "atmel,sama5d3-ddramc";
reg = <0xf000c000 0x200>;
@@ -457,6 +505,24 @@
clocks = <&plla>;
};
+ audio_pll_frac: audiopll_fracck {
+ compatible = "atmel,sama5d2-clk-audio-pll-frac";
+ #clock-cells = <0>;
+ clocks = <&main>;
+ };
+
+ audio_pll_pad: audiopll_padck {
+ compatible = "atmel,sama5d2-clk-audio-pll-pad";
+ #clock-cells = <0>;
+ clocks = <&audio_pll_frac>;
+ };
+
+ audio_pll_pmc: audiopll_pmcck {
+ compatible = "atmel,sama5d2-clk-audio-pll-pmc";
+ #clock-cells = <0>;
+ clocks = <&audio_pll_frac>;
+ };
+
utmi: utmick {
compatible = "atmel,at91sam9x5-clk-utmi";
#clock-cells = <0>;
@@ -762,6 +828,18 @@
atmel,clk-output-range = <0 83000000>;
};
+ can0_clk: can0_clk {
+ #clock-cells = <0>;
+ reg = <56>;
+ atmel,clk-output-range = <0 83000000>;
+ };
+
+ can1_clk: can1_clk {
+ #clock-cells = <0>;
+ reg = <57>;
+ atmel,clk-output-range = <0 83000000>;
+ };
+
classd_clk: classd_clk {
#clock-cells = <0>;
reg = <59>;
@@ -846,7 +924,7 @@
#address-cells = <1>;
#size-cells = <0>;
interrupt-parent = <&pmc>;
- clocks = <&clk32k>, <&main>, <&plladiv>, <&utmi>, <&mck>;
+ clocks = <&clk32k>, <&main>, <&plladiv>, <&utmi>, <&mck>, <&audio_pll_pmc>;
sdmmc0_gclk: sdmmc0_gclk {
#clock-cells = <0>;
@@ -876,6 +954,11 @@
atmel,clk-output-range = <0 83000000>;
};
+ isc_gclk: isc_gclk {
+ #clock-cells = <0>;
+ reg = <46>;
+ };
+
pdmic_gclk: pdmic_gclk {
#clock-cells = <0>;
reg = <48>;
@@ -890,9 +973,49 @@
#clock-cells = <0>;
reg = <55>;
};
+
+ can0_gclk: can0_gclk {
+ #clock-cells = <0>;
+ reg = <56>;
+ atmel,clk-output-range = <0 80000000>;
+ };
+
+ can1_gclk: can1_gclk {
+ #clock-cells = <0>;
+ reg = <57>;
+ atmel,clk-output-range = <0 80000000>;
+ };
+
+ classd_gclk: classd_gclk {
+ #clock-cells = <0>;
+ reg = <59>;
+ atmel,clk-output-range = <0 100000000>;
+ };
};
};
+ qspi0: spi@f0020000 {
+ compatible = "atmel,sama5d2-qspi";
+ reg = <0xf0020000 0x100>, <0xd0000000 0x08000000>;
+ reg-names = "qspi_base", "qspi_mmap";
+ interrupts = <52 IRQ_TYPE_LEVEL_HIGH 7>;
+ clocks = <&qspi0_clk>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ qspi1: spi@f0024000 {
+ compatible = "atmel,sama5d2-qspi";
+ reg = <0xf0024000 0x100>, <0xd8000000 0x08000000>;
+ reg-names = "qspi_base", "qspi_mmap";
+ interrupts = <53 IRQ_TYPE_LEVEL_HIGH 7>;
+ clocks = <&qspi1_clk>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
sha@f0028000 {
compatible = "atmel,at91sam9g46-sha";
reg = <0xf0028000 0x100>;
@@ -986,6 +1109,22 @@
clock-names = "t0_clk", "slow_clk";
};
+ hsmc: hsmc@f8014000 {
+ compatible = "atmel,sama5d2-smc", "syscon", "simple-mfd";
+ reg = <0xf8014000 0x1000>;
+ interrupts = <17 IRQ_TYPE_LEVEL_HIGH 6>;
+ clocks = <&hsmc_clk>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ pmecc: ecc-engine@f8014070 {
+ compatible = "atmel,sama5d2-pmecc";
+ reg = <0xf8014070 0x490>,
+ <0xf8014500 0x100>;
+ };
+ };
+
pdmic: pdmic@f8018000 {
compatible = "atmel,sama5d2-pdmic";
reg = <0xf8018000 0x124>;
@@ -1065,6 +1204,14 @@
status = "disabled";
};
+ pwm0: pwm@f802c000 {
+ compatible = "atmel,sama5d2-pwm";
+ reg = <0xf802c000 0x4000>;
+ interrupts = <38 IRQ_TYPE_LEVEL_HIGH 7>;
+ #pwm-cells = <3>;
+ clocks = <&pwm_clk>;
+ };
+
sfr: sfr@f8030000 {
compatible = "atmel,sama5d2-sfr", "syscon";
reg = <0xf8030000 0x98>;
@@ -1144,6 +1291,22 @@
clocks = <&clk32k>;
};
+ can0: can@f8054000 {
+ compatible = "bosch,m_can";
+ reg = <0xf8054000 0x4000>, <0x210000 0x4000>;
+ reg-names = "m_can", "message_ram";
+ interrupts = <56 IRQ_TYPE_LEVEL_HIGH 7>,
+ <64 IRQ_TYPE_LEVEL_HIGH 7>;
+ interrupt-names = "int0", "int1";
+ clocks = <&can0_clk>, <&can0_gclk>;
+ clock-names = "hclk", "cclk";
+ assigned-clocks = <&can0_gclk>;
+ assigned-clock-parents = <&utmi>;
+ assigned-clock-rates = <40000000>;
+ bosch,mram-cfg = <0x0 0 0 64 0 0 32 32>;
+ status = "disabled";
+ };
+
spi1: spi@fc000000 {
compatible = "atmel,at91rm9200-spi";
reg = <0xfc000000 0x100>;
@@ -1267,6 +1430,7 @@
atmel,min-sample-rate-hz = <200000>;
atmel,max-sample-rate-hz = <20000000>;
atmel,startup-time-ms = <4>;
+ atmel,trigger-edge-type = <IRQ_TYPE_EDGE_RISING>;
status = "disabled";
};
@@ -1305,6 +1469,35 @@
status = "okay";
};
+ classd: classd@fc048000 {
+ compatible = "atmel,sama5d2-classd";
+ reg = <0xfc048000 0x100>;
+ interrupts = <59 IRQ_TYPE_LEVEL_HIGH 7>;
+ dmas = <&dma0
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+ AT91_XDMAC_DT_PERID(47))>;
+ dma-names = "tx";
+ clocks = <&classd_clk>, <&classd_gclk>;
+ clock-names = "pclk", "gclk";
+ status = "disabled";
+ };
+
+ can1: can@fc050000 {
+ compatible = "bosch,m_can";
+ reg = <0xfc050000 0x4000>, <0x210000 0x4000>;
+ reg-names = "m_can", "message_ram";
+ interrupts = <57 IRQ_TYPE_LEVEL_HIGH 7>,
+ <65 IRQ_TYPE_LEVEL_HIGH 7>;
+ interrupt-names = "int0", "int1";
+ clocks = <&can1_clk>, <&can1_gclk>;
+ clock-names = "hclk", "cclk";
+ assigned-clocks = <&can1_gclk>;
+ assigned-clock-parents = <&utmi>;
+ assigned-clock-rates = <40000000>;
+ bosch,mram-cfg = <0x1100 0 0 64 0 0 32 32>;
+ status = "disabled";
+ };
+
sfrbu: sfr@fc05c000 {
compatible = "atmel,sama5d2-sfrbu", "syscon";
reg = <0xfc05c000 0x20>;
diff --git a/arch/arm/boot/dts/sama5d3.dtsi b/arch/arm/boot/dts/sama5d3.dtsi
index b06448ba6649..554d0bdedc7a 100644
--- a/arch/arm/boot/dts/sama5d3.dtsi
+++ b/arch/arm/boot/dts/sama5d3.dtsi
@@ -429,6 +429,22 @@
clocks = <&trng_clk>;
};
+ hsmc: hsmc@ffffc000 {
+ compatible = "atmel,sama5d3-smc", "syscon", "simple-mfd";
+ reg = <0xffffc000 0x1000>;
+ interrupts = <5 IRQ_TYPE_LEVEL_HIGH 6>;
+ clocks = <&hsmc_clk>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ pmecc: ecc-engine@ffffc070 {
+ compatible = "atmel,at91sam9g45-pmecc";
+ reg = <0xffffc070 0x490>,
+ <0xffffc500 0x100>;
+ };
+ };
+
dma0: dma-controller@ffffe600 {
compatible = "atmel,at91sam9g45-dma";
reg = <0xffffe600 0x200>;
@@ -554,6 +570,66 @@
};
};
+ ebi {
+ pinctrl_ebi_addr: ebi-addr-0 {
+ atmel,pins =
+ <AT91_PIOE 1 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 2 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 3 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 4 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 5 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 6 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 7 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 8 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 9 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 10 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 11 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 12 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 13 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 14 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 15 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 16 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 17 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 18 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 19 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 20 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 21 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 22 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 23 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_nand_addr: ebi-addr-1 {
+ atmel,pins =
+ <AT91_PIOE 21 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 22 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_cs0: ebi-cs0-0 {
+ atmel,pins =
+ <AT91_PIOE 24 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_cs1: ebi-cs1-0 {
+ atmel,pins =
+ <AT91_PIOE 25 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_cs2: ebi-cs2-0 {
+ atmel,pins =
+ <AT91_PIOE 26 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_nwait: ebi-nwait-0 {
+ atmel,pins =
+ <AT91_PIOE 28 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_nwr1_nbs1: ebi-nwr1-nbs1-0 {
+ atmel,pins =
+ <AT91_PIOE 27 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+ };
+
i2c0 {
pinctrl_i2c0: i2c0-0 {
atmel,pins =
@@ -1326,6 +1402,12 @@
};
};
+ nfc_sram: sram@200000 {
+ compatible = "mmio-sram";
+ no-memory-wc;
+ reg = <0x200000 0x2400>;
+ };
+
usb0: gadget@00500000 {
#address-cells = <1>;
#size-cells = <0>;
@@ -1461,36 +1543,35 @@
status = "disabled";
};
- nand0: nand@60000000 {
- compatible = "atmel,at91rm9200-nand";
- #address-cells = <1>;
+ ebi: ebi@10000000 {
+ compatible = "atmel,sama5d3-ebi";
+ #address-cells = <2>;
#size-cells = <1>;
- ranges;
- reg = < 0x60000000 0x01000000 /* EBI CS3 */
- 0xffffc070 0x00000490 /* SMC PMECC regs */
- 0xffffc500 0x00000100 /* SMC PMECC Error Location regs */
- 0x00110000 0x00018000 /* ROM code */
- >;
- interrupts = <5 IRQ_TYPE_LEVEL_HIGH 6>;
- atmel,nand-addr-offset = <21>;
- atmel,nand-cmd-offset = <22>;
- atmel,nand-has-dma;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_nand0_ale_cle>;
- atmel,pmecc-lookup-table-offset = <0x0 0x8000>;
+ atmel,smc = <&hsmc>;
+ reg = <0x10000000 0x10000000
+ 0x40000000 0x30000000>;
+ ranges = <0x0 0x0 0x10000000 0x10000000
+ 0x1 0x0 0x40000000 0x10000000
+ 0x2 0x0 0x50000000 0x10000000
+ 0x3 0x0 0x60000000 0x10000000>;
+ clocks = <&mck>;
status = "disabled";
- nfc@70000000 {
- compatible = "atmel,sama5d3-nfc";
- #address-cells = <1>;
+ nand_controller: nand-controller {
+ compatible = "atmel,sama5d3-nand-controller";
+ atmel,nfc-sram = <&nfc_sram>;
+ atmel,nfc-io = <&nfc_io>;
+ ecc-engine = <&pmecc>;
+ #address-cells = <2>;
#size-cells = <1>;
- reg = <
- 0x70000000 0x08000000 /* NFC Command Registers */
- 0xffffc000 0x00000070 /* NFC HSMC regs */
- 0x00200000 0x00100000 /* NFC SRAM banks */
- >;
- clocks = <&hsmc_clk>;
+ ranges;
+ status = "disabled";
};
};
+
+ nfc_io: nfc-io@70000000 {
+ compatible = "atmel,sama5d3-nfc-io", "syscon";
+ reg = <0x70000000 0x8000000>;
+ };
};
};
diff --git a/arch/arm/boot/dts/sama5d3xcm.dtsi b/arch/arm/boot/dts/sama5d3xcm.dtsi
index b5e111b29da1..9506daf5efb6 100644
--- a/arch/arm/boot/dts/sama5d3xcm.dtsi
+++ b/arch/arm/boot/dts/sama5d3xcm.dtsi
@@ -36,43 +36,82 @@
};
};
- nand0: nand@60000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "hw";
- atmel,has-pmecc;
- atmel,pmecc-cap = <4>;
- atmel,pmecc-sector-size = <512>;
- nand-on-flash-bbt;
+ ebi@10000000 {
+ pinctrl-0 = <&pinctrl_ebi_addr &pinctrl_ebi_cs0>;
+ pinctr-name = "default";
status = "okay";
- at91bootstrap@0 {
- label = "at91bootstrap";
- reg = <0x0 0x40000>;
+ nor: flash@0,0 {
+ compatible = "cfi-flash";
+ linux,mtd-name = "physmap-flash.0";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x0 0x0 0x1000000>;
+ bank-width = <2>;
+ atmel,smc-read-mode = "nrd";
+ atmel,smc-write-mode = "nwe";
+ atmel,smc-bus-width = <16>;
+ atmel,smc-ncs-rd-setup-ns = <0>;
+ atmel,smc-ncs-wr-setup-ns = <0>;
+ atmel,smc-nwe-setup-ns = <8>;
+ atmel,smc-nrd-setup-ns = <16>;
+ atmel,smc-ncs-rd-pulse-ns = <84>;
+ atmel,smc-ncs-wr-pulse-ns = <84>;
+ atmel,smc-nrd-pulse-ns = <76>;
+ atmel,smc-nwe-pulse-ns = <76>;
+ atmel,smc-nrd-cycle-ns = <107>;
+ atmel,smc-nwe-cycle-ns = <84>;
+ atmel,smc-tdf-ns = <16>;
};
- bootloader@40000 {
- label = "bootloader";
- reg = <0x40000 0x80000>;
- };
+ nand_controller: nand-controller {
+ status = "okay";
- bootloaderenv@c0000 {
- label = "bootloader env";
- reg = <0xc0000 0xc0000>;
- };
+ nand@3 {
+ reg = <0x3 0x0 0x2>;
+ atmel,rb = <0>;
+ nand-ecc-mode = "hw";
+ nand-ecc-strength = <4>;
+ nand-ecc-step-size = <512>;
+ nand-on-flash-bbt;
+ label = "atmel_nand";
- dtb@180000 {
- label = "device tree";
- reg = <0x180000 0x80000>;
- };
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
- kernel@200000 {
- label = "kernel";
- reg = <0x200000 0x600000>;
- };
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x40000>;
+ };
+
+ bootloader@40000 {
+ label = "bootloader";
+ reg = <0x40000 0x80000>;
+ };
+
+ bootloaderenv@c0000 {
+ label = "bootloader env";
+ reg = <0xc0000 0xc0000>;
+ };
+
+ dtb@180000 {
+ label = "device tree";
+ reg = <0x180000 0x80000>;
+ };
+
+ kernel@200000 {
+ label = "kernel";
+ reg = <0x200000 0x600000>;
+ };
- rootfs@800000 {
- label = "rootfs";
- reg = <0x800000 0x0f800000>;
+ rootfs@800000 {
+ label = "rootfs";
+ reg = <0x800000 0x0f800000>;
+ };
+ };
+ };
};
};
};
diff --git a/arch/arm/boot/dts/sama5d3xcm_cmp.dtsi b/arch/arm/boot/dts/sama5d3xcm_cmp.dtsi
index dc7572bc7ff0..75cbf4d4ab1a 100644
--- a/arch/arm/boot/dts/sama5d3xcm_cmp.dtsi
+++ b/arch/arm/boot/dts/sama5d3xcm_cmp.dtsi
@@ -148,43 +148,60 @@
};
};
- nand0: nand@60000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "hw";
- atmel,has-pmecc;
- atmel,pmecc-cap = <4>;
- atmel,pmecc-sector-size = <512>;
- nand-on-flash-bbt;
+ ebi: ebi@10000000 {
+ pinctrl-0 = <&pinctrl_ebi_nand_addr>;
+ pinctrl-names = "default";
status = "okay";
- at91bootstrap@0 {
- label = "at91bootstrap";
- reg = <0x0 0x40000>;
- };
+ nand_controller: nand-controller {
+ status = "okay";
+
+ nand@3 {
+ reg = <0x3 0x0 0x2>;
+ atmel,rb = <0>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "hw";
+ nand-ecc-strength = <4>;
+ nand-ecc-step-size = <512>;
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x40000>;
+ };
- bootloader@40000 {
- label = "bootloader";
- reg = <0x40000 0x80000>;
- };
+ bootloader@40000 {
+ label = "bootloader";
+ reg = <0x40000 0x80000>;
+ };
- bootloaderenv@c0000 {
- label = "bootloader env";
- reg = <0xc0000 0xc0000>;
- };
+ bootloaderenv@c0000 {
+ label = "bootloader env";
+ reg = <0xc0000 0xc0000>;
+ };
- dtb@180000 {
- label = "device tree";
- reg = <0x180000 0x80000>;
- };
+ dtb@180000 {
+ label = "device tree";
+ reg = <0x180000 0x80000>;
+ };
- kernel@200000 {
- label = "kernel";
- reg = <0x200000 0x600000>;
- };
+ kernel@200000 {
+ label = "kernel";
+ reg = <0x200000 0x600000>;
+ };
- rootfs@800000 {
- label = "rootfs";
- reg = <0x800000 0x0f800000>;
+ rootfs@800000 {
+ label = "rootfs";
+ reg = <0x800000 0x0f800000>;
+ };
+ };
+ };
};
};
};
diff --git a/arch/arm/boot/dts/sama5d4.dtsi b/arch/arm/boot/dts/sama5d4.dtsi
index d3889c9d25a9..2fa36c525957 100644
--- a/arch/arm/boot/dts/sama5d4.dtsi
+++ b/arch/arm/boot/dts/sama5d4.dtsi
@@ -124,6 +124,12 @@
#size-cells = <1>;
ranges;
+ nfc_sram: sram@100000 {
+ compatible = "mmio-sram";
+ no-memory-wc;
+ reg = <0x100000 0x2400>;
+ };
+
usb0: gadget@00400000 {
#address-cells = <1>;
#size-cells = <0>;
@@ -280,37 +286,37 @@
cache-level = <2>;
};
- nand0: nand@80000000 {
- compatible = "atmel,sama5d4-nand", "atmel,at91rm9200-nand";
- #address-cells = <1>;
+ ebi: ebi@10000000 {
+ compatible = "atmel,sama5d3-ebi";
+ #address-cells = <2>;
#size-cells = <1>;
- ranges;
- reg = < 0x80000000 0x08000000 /* EBI CS3 */
- 0xfc05c070 0x00000490 /* SMC PMECC regs */
- 0xfc05c500 0x00000100 /* SMC PMECC Error Location regs */
- >;
- interrupts = <22 IRQ_TYPE_LEVEL_HIGH 6>;
- atmel,nand-addr-offset = <21>;
- atmel,nand-cmd-offset = <22>;
- atmel,nand-has-dma;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_nand>;
+ atmel,smc = <&hsmc>;
+ reg = <0x10000000 0x10000000
+ 0x60000000 0x28000000>;
+ ranges = <0x0 0x0 0x10000000 0x10000000
+ 0x1 0x0 0x60000000 0x10000000
+ 0x2 0x0 0x70000000 0x10000000
+ 0x3 0x0 0x80000000 0x8000000>;
+ clocks = <&mck>;
status = "disabled";
- nfc@90000000 {
- compatible = "atmel,sama5d3-nfc";
- #address-cells = <1>;
+ nand_controller: nand-controller {
+ compatible = "atmel,sama5d3-nand-controller";
+ atmel,nfc-sram = <&nfc_sram>;
+ atmel,nfc-io = <&nfc_io>;
+ ecc-engine = <&pmecc>;
+ #address-cells = <2>;
#size-cells = <1>;
- reg = <
- 0x90000000 0x08000000 /* NFC Command Registers */
- 0xfc05c000 0x00000070 /* NFC HSMC regs */
- 0x00100000 0x00100000 /* NFC SRAM banks */
- >;
- clocks = <&hsmc_clk>;
- atmel,write-by-sram;
+ ranges;
+ status = "disabled";
};
};
+ nfc_io: nfc-io@90000000 {
+ compatible = "atmel,sama5d3-nfc-io", "syscon";
+ reg = <0x90000000 0x8000000>;
+ };
+
apb {
compatible = "simple-bus";
#address-cells = <1>;
@@ -1287,6 +1293,22 @@
status = "okay";
};
+ hsmc: smc@fc05c000 {
+ compatible = "atmel,sama5d3-smc", "syscon", "simple-mfd";
+ reg = <0xfc05c000 0x1000>;
+ interrupts = <22 IRQ_TYPE_LEVEL_HIGH 6>;
+ clocks = <&hsmc_clk>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ pmecc: ecc-engine@ffffc070 {
+ compatible = "atmel,sama5d4-pmecc";
+ reg = <0xfc05c070 0x490>,
+ <0xfc05c500 0x100>;
+ };
+ };
+
rstc@fc068600 {
compatible = "atmel,sama5d3-rstc", "atmel,at91sam9g45-rstc";
reg = <0xfc068600 0x10>;
@@ -1447,6 +1469,113 @@
};
};
+ ebi {
+ pinctrl_ebi_addr: ebi-addr-0 {
+ atmel,pins =
+ <AT91_PIOE 0 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 1 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 2 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 3 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 4 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 5 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 6 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 7 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 8 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 9 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 10 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 11 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 12 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 13 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 14 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 15 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 16 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 17 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 18 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 19 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 20 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOC 17 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOC 18 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 21 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 22 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOE 23 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_nand_addr: ebi-addr-1 {
+ atmel,pins =
+ <AT91_PIOC 17 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOC 18 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_cs0: ebi-cs0-0 {
+ atmel,pins =
+ <AT91_PIOE 26 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_cs1: ebi-cs1-0 {
+ atmel,pins =
+ <AT91_PIOE 27 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_cs2: ebi-cs2-0 {
+ atmel,pins =
+ <AT91_PIOE 28 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_cs3: ebi-cs3-0 {
+ atmel,pins =
+ <AT91_PIOC 15 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_data_0_7: ebi-data-lsb-0 {
+ atmel,pins =
+ <AT91_PIOC 5 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOC 6 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOC 7 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOC 8 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOC 9 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOC 10 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOC 11 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOC 12 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_data_8_15: ebi-data-msb-0 {
+ atmel,pins =
+ <AT91_PIOB 18 AT91_PERIPH_B AT91_PINCTRL_NONE
+ AT91_PIOB 19 AT91_PERIPH_B AT91_PINCTRL_NONE
+ AT91_PIOB 20 AT91_PERIPH_B AT91_PINCTRL_NONE
+ AT91_PIOB 21 AT91_PERIPH_B AT91_PINCTRL_NONE
+ AT91_PIOB 22 AT91_PERIPH_B AT91_PINCTRL_NONE
+ AT91_PIOB 23 AT91_PERIPH_B AT91_PINCTRL_NONE
+ AT91_PIOB 24 AT91_PERIPH_B AT91_PINCTRL_NONE
+ AT91_PIOB 25 AT91_PERIPH_B AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_nandrdy: ebi-nandrdy-0 {
+ atmel,pins =
+ <AT91_PIOC 16 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_nrd_nandoe: ebi-nrd-nandoe-0 {
+ atmel,pins =
+ <AT91_PIOC 13 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_nwait: ebi-nwait-0 {
+ atmel,pins =
+ <AT91_PIOE 30 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_nwe_nandwe: ebi-nwe-nandwe-0 {
+ atmel,pins =
+ <AT91_PIOC 14 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+
+ pinctrl_ebi_nwr1_nbs1: ebi-nwr1-nbs1-0 {
+ atmel,pins =
+ <AT91_PIOE 29 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+ };
+ };
+
i2c0 {
pinctrl_i2c0: i2c0-0 {
atmel,pins =
diff --git a/arch/arm/boot/dts/sh73a0.dtsi b/arch/arm/boot/dts/sh73a0.dtsi
index 6b01ab354e88..4ea5c5a16c57 100644
--- a/arch/arm/boot/dts/sh73a0.dtsi
+++ b/arch/arm/boot/dts/sh73a0.dtsi
@@ -444,7 +444,7 @@
status = "disabled";
};
- pfc: pfc@e6050000 {
+ pfc: pin-controller@e6050000 {
compatible = "renesas,pfc-sh73a0";
reg = <0xe6050000 0x8000>,
<0xe605801c 0x1c>;
diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index b2674bdb8e6a..7e24dc8e82d4 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -557,7 +557,7 @@
interrupts = <0 115 4>;
interrupt-names = "macirq";
mac-address = [00 00 00 00 00 00];/* Filled in by U-Boot */
- clocks = <&emac0_clk>;
+ clocks = <&emac_0_clk>;
clock-names = "stmmaceth";
resets = <&rst EMAC0_RESET>;
reset-names = "stmmaceth";
@@ -575,7 +575,7 @@
interrupts = <0 120 4>;
interrupt-names = "macirq";
mac-address = [00 00 00 00 00 00];/* Filled in by U-Boot */
- clocks = <&emac1_clk>;
+ clocks = <&emac_1_clk>;
clock-names = "stmmaceth";
resets = <&rst EMAC1_RESET>;
reset-names = "stmmaceth";
diff --git a/arch/arm/boot/dts/socfpga_arria10_socdk.dtsi b/arch/arm/boot/dts/socfpga_arria10_socdk.dtsi
index 94e088473823..3a32de9ded3b 100644
--- a/arch/arm/boot/dts/socfpga_arria10_socdk.dtsi
+++ b/arch/arm/boot/dts/socfpga_arria10_socdk.dtsi
@@ -130,13 +130,13 @@
};
&i2c1 {
- speed-mode = <0>;
status = "okay";
/*
* adjust the falling times to decrease the i2c frequency to 50Khz
* because the LCD module does not work at the standard 100Khz
*/
+ clock-frequency = <100000>;
i2c-sda-falling-time-ns = <6000>;
i2c-scl-falling-time-ns = <6000>;
diff --git a/arch/arm/boot/dts/socfpga_cyclone5_de0_sockit.dts b/arch/arm/boot/dts/socfpga_cyclone5_de0_sockit.dts
index 7b49395452b6..b280e6494193 100644
--- a/arch/arm/boot/dts/socfpga_cyclone5_de0_sockit.dts
+++ b/arch/arm/boot/dts/socfpga_cyclone5_de0_sockit.dts
@@ -86,7 +86,7 @@
&i2c0 {
status = "okay";
- speed-mode = <0>;
+ clock-frequency = <100000>;
adxl345: adxl345@0 {
compatible = "adi,adxl345";
diff --git a/arch/arm/boot/dts/socfpga_cyclone5_mcvevk.dts b/arch/arm/boot/dts/socfpga_cyclone5_mcvevk.dts
index 21e397287e29..c2eb88aab8b3 100644
--- a/arch/arm/boot/dts/socfpga_cyclone5_mcvevk.dts
+++ b/arch/arm/boot/dts/socfpga_cyclone5_mcvevk.dts
@@ -58,7 +58,7 @@
&i2c0 {
status = "okay";
- speed-mode = <0>;
+ clock-frequency = <100000>;
stmpe1: stmpe811@41 {
compatible = "st,stmpe811";
diff --git a/arch/arm/boot/dts/socfpga_cyclone5_vining_fpga.dts b/arch/arm/boot/dts/socfpga_cyclone5_vining_fpga.dts
index 893198049397..655fe87e272d 100644
--- a/arch/arm/boot/dts/socfpga_cyclone5_vining_fpga.dts
+++ b/arch/arm/boot/dts/socfpga_cyclone5_vining_fpga.dts
@@ -69,34 +69,7 @@
* to be added to the gmac1 device tree blob.
*/
ethernet0 = &gmac1;
- };
-
- leds {
- compatible = "gpio-leds";
-
- hps_led0 {
- label = "hps:green:led0"; /* ALIVE_LED_GR */
- gpios = <&portb 19 0>; /* HPS_GPIO48 */
- linux,default-trigger = "heartbeat";
- };
-
- hps_led1 {
- label = "hps:red:led0"; /* ALIVE_LED_RD */
- gpios = <&portb 24 0>; /* HPS_GPIO53 */
- linux,default-trigger = "none";
- };
-
- hps_led2 {
- label = "hps:green:led1"; /* LINK2HOST_LED_GR */
- gpios = <&portb 25 0>; /* HPS_GPIO54 */
- linux,default-trigger = "heartbeat";
- };
-
- hps_led3 {
- label = "hps:red:led1"; /* LINK2HOST_LED_RD */
- gpios = <&portc 7 0>; /* HPS_GPIO65 */
- linux,default-trigger = "none";
- };
+ ethernet1 = &gmac0;
};
gpio-keys {
@@ -203,69 +176,39 @@
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
- eeprom@51 {
- compatible = "at,24c01";
- pagesize = <8>;
- reg = <0x51>;
- };
};
i2c@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
- eeprom@51 {
- compatible = "at,24c01";
- pagesize = <8>;
- reg = <0x51>;
- };
};
i2c@2 {
#address-cells = <1>;
#size-cells = <0>;
reg = <2>;
- eeprom@51 {
- compatible = "at,24c01";
- pagesize = <8>;
- reg = <0x51>;
- };
};
i2c@3 {
#address-cells = <1>;
#size-cells = <0>;
reg = <3>;
- eeprom@51 {
- compatible = "at,24c01";
- pagesize = <8>;
- reg = <0x51>;
- };
};
i2c@4 {
#address-cells = <1>;
#size-cells = <0>;
reg = <4>;
- eeprom@51 {
- compatible = "at,24c01";
- pagesize = <8>;
- reg = <0x51>;
- };
};
i2c@5 {
#address-cells = <1>;
#size-cells = <0>;
reg = <5>;
- eeprom@51 {
- compatible = "at,24c01";
- pagesize = <8>;
- reg = <0x51>;
- };
};
- i2c@6 {
+ i2c@6 { /* Backplane EEPROM */
#address-cells = <1>;
#size-cells = <0>;
reg = <6>;
@@ -276,7 +219,7 @@
};
};
- i2c@7 {
+ i2c@7 { /* Power board EEPROM */
#address-cells = <1>;
#size-cells = <0>;
reg = <7>;
@@ -300,6 +243,44 @@
};
};
+&qspi {
+ status = "okay";
+
+ n25q128@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "n25q128";
+ reg = <0>; /* chip select */
+ spi-max-frequency = <100000000>;
+ m25p,fast-read;
+
+ cdns,page-size = <256>;
+ cdns,block-size = <16>;
+ cdns,read-delay = <4>;
+ cdns,tshsl-ns = <50>;
+ cdns,tsd2d-ns = <50>;
+ cdns,tchsh-ns = <4>;
+ cdns,tslch-ns = <4>;
+ };
+
+ n25q00@1 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "n25q00";
+ reg = <1>; /* chip select */
+ spi-max-frequency = <100000000>;
+ m25p,fast-read;
+
+ cdns,page-size = <256>;
+ cdns,block-size = <16>;
+ cdns,read-delay = <4>;
+ cdns,tshsl-ns = <50>;
+ cdns,tsd2d-ns = <50>;
+ cdns,tchsh-ns = <4>;
+ cdns,tslch-ns = <4>;
+ };
+};
+
&usb0 {
dr_mode = "host";
status = "okay";
diff --git a/arch/arm/boot/dts/spear1310.dtsi b/arch/arm/boot/dts/spear1310.dtsi
index 54bc6d3cf290..40f4ad3c34c6 100644
--- a/arch/arm/boot/dts/spear1310.dtsi
+++ b/arch/arm/boot/dts/spear1310.dtsi
@@ -98,6 +98,7 @@
device_type = "pci";
ranges = <0x81000000 0 0 0x80020000 0 0x00010000 /* downstream I/O */
0x82000000 0 0x80030000 0xc0030000 0 0x0ffd0000>; /* non-prefetchable memory */
+ bus-range = <0x00 0xff>;
status = "disabled";
};
@@ -116,6 +117,7 @@
device_type = "pci";
ranges = <0x81000000 0 0 0x90020000 0 0x00010000 /* downstream I/O */
0x82000000 0 0x90030000 0x90030000 0 0x0ffd0000>; /* non-prefetchable memory */
+ bus-range = <0x00 0xff>;
status = "disabled";
};
@@ -134,6 +136,7 @@
device_type = "pci";
ranges = <0x81000000 0 0 0xc0020000 0 0x00010000 /* downstream I/O */
0x82000000 0 0xc0030000 0xc0030000 0 0x0ffd0000>; /* non-prefetchable memory */
+ bus-range = <0x00 0xff>;
status = "disabled";
};
diff --git a/arch/arm/boot/dts/spear1340.dtsi b/arch/arm/boot/dts/spear1340.dtsi
index df2232d767ed..5f347054527d 100644
--- a/arch/arm/boot/dts/spear1340.dtsi
+++ b/arch/arm/boot/dts/spear1340.dtsi
@@ -63,6 +63,7 @@
device_type = "pci";
ranges = <0x81000000 0 0 0x80020000 0 0x00010000 /* downstream I/O */
0x82000000 0 0x80030000 0xc0030000 0 0x0ffd0000>; /* non-prefetchable memory */
+ bus-range = <0x00 0xff>;
status = "disabled";
};
diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 6c5affe2d0f5..2310a4e97768 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -37,6 +37,14 @@
device_type = "cpu";
compatible = "arm,cortex-a9";
reg = <0x300>;
+ /* cpufreq controls */
+ operating-points = <998400 0
+ 800000 0
+ 400000 0
+ 200000 0>;
+ clocks = <&prcmu_clk PRCMU_ARMSS>;
+ clock-names = "cpu";
+ clock-latency = <20000>;
};
CPU1: cpu@301 {
device_type = "cpu";
@@ -494,13 +502,6 @@
reg = <0x80157450 0xC>;
};
- cpufreq {
- compatible = "stericsson,cpufreq-ux500";
- clocks = <&prcmu_clk PRCMU_ARMSS>;
- clock-names = "armss";
- status = "disabled";
- };
-
thermal@801573c0 {
compatible = "stericsson,db8500-thermal";
reg = <0x801573c0 0x40>;
diff --git a/arch/arm/boot/dts/ste-hrefprev60.dtsi b/arch/arm/boot/dts/ste-hrefprev60.dtsi
index 5882a2606ac3..3f14b4df69b4 100644
--- a/arch/arm/boot/dts/ste-hrefprev60.dtsi
+++ b/arch/arm/boot/dts/ste-hrefprev60.dtsi
@@ -30,7 +30,7 @@
i2c@80004000 {
tps61052@33 {
- compatible = "tps61052";
+ compatible = "ti,tps61052";
reg = <0x33>;
};
diff --git a/arch/arm/boot/dts/stm32429i-eval.dts b/arch/arm/boot/dts/stm32429i-eval.dts
index b6331146aa02..293ecb957227 100644
--- a/arch/arm/boot/dts/stm32429i-eval.dts
+++ b/arch/arm/boot/dts/stm32429i-eval.dts
@@ -47,14 +47,16 @@
/dts-v1/;
#include "stm32f429.dtsi"
+#include "stm32f429-pinctrl.dtsi"
#include <dt-bindings/input/input.h>
+#include <dt-bindings/gpio/gpio.h>
/ {
model = "STMicroelectronics STM32429i-EVAL board";
compatible = "st,stm32429i-eval", "st,stm32f429";
chosen {
- bootargs = "root=/dev/ram rdinit=/linuxrc";
+ bootargs = "root=/dev/ram";
stdout-path = "serial0:115200n8";
};
@@ -66,6 +68,14 @@
serial0 = &usart1;
};
+ clocks {
+ clk_ext_camera: clk-ext-camera {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <24000000>;
+ };
+ };
+
soc {
dma-ranges = <0xc0000000 0x0 0x10000000>;
};
@@ -124,6 +134,16 @@
clocks = <&rcc 0 STM32F4_AHB1_CLOCK(OTGHSULPI)>;
clock-names = "main_clk";
};
+
+ panel_rgb: panel-rgb {
+ compatible = "ampire,am-480272h3tmqw-t01h";
+ status = "okay";
+ port {
+ panel_in_rgb: endpoint {
+ remote-endpoint = <&ltdc_out_rgb>;
+ };
+ };
+ };
};
&adc {
@@ -141,10 +161,77 @@
clock-frequency = <25000000>;
};
+&crc {
+ status = "okay";
+};
+
+&dcmi {
+ status = "okay";
+
+ port {
+ dcmi_0: endpoint {
+ remote-endpoint = <&ov2640_0>;
+ bus-width = <8>;
+ hsync-active = <0>;
+ vsync-active = <0>;
+ pclk-sample = <1>;
+ };
+ };
+};
+
&i2c1 {
pinctrl-0 = <&i2c1_pins>;
pinctrl-names = "default";
status = "okay";
+
+ ov2640: camera@30 {
+ compatible = "ovti,ov2640";
+ reg = <0x30>;
+ resetb-gpios = <&stmpegpio 2 GPIO_ACTIVE_HIGH>;
+ pwdn-gpios = <&stmpegpio 0 GPIO_ACTIVE_LOW>;
+ clocks = <&clk_ext_camera>;
+ clock-names = "xvclk";
+ status = "okay";
+
+ port {
+ ov2640_0: endpoint {
+ remote-endpoint = <&dcmi_0>;
+ };
+ };
+ };
+
+ stmpe1600: stmpe1600@42 {
+ compatible = "st,stmpe1600";
+ reg = <0x42>;
+ interrupts = <8 3>;
+ interrupt-parent = <&gpioi>;
+ interrupt-controller;
+ wakeup-source;
+
+ stmpegpio: stmpe_gpio {
+ compatible = "st,stmpe-gpio";
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+ };
+};
+
+&iwdg {
+ status = "okay";
+ timeout-sec = <32>;
+};
+
+&ltdc {
+ status = "okay";
+ pinctrl-0 = <&ltdc_pins>;
+ pinctrl-names = "default";
+ dma-ranges;
+
+ port {
+ ltdc_out_rgb: endpoint {
+ remote-endpoint = <&panel_in_rgb>;
+ };
+ };
};
&mac {
diff --git a/arch/arm/boot/dts/stm32f4-pinctrl.dtsi b/arch/arm/boot/dts/stm32f4-pinctrl.dtsi
new file mode 100644
index 000000000000..7f3560c0211d
--- /dev/null
+++ b/arch/arm/boot/dts/stm32f4-pinctrl.dtsi
@@ -0,0 +1,343 @@
+/*
+ * Copyright 2017 - Alexandre Torgue <alexandre.torgue@st.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <dt-bindings/pinctrl/stm32f429-pinfunc.h>
+#include <dt-bindings/mfd/stm32f4-rcc.h>
+
+/ {
+ soc {
+ pinctrl: pin-controller {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x40020000 0x3000>;
+ interrupt-parent = <&exti>;
+ st,syscfg = <&syscfg 0x8>;
+ pins-are-numbered;
+
+ gpioa: gpio@40020000 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ reg = <0x0 0x400>;
+ clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOA)>;
+ st,bank-name = "GPIOA";
+ };
+
+ gpiob: gpio@40020400 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ reg = <0x400 0x400>;
+ clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOB)>;
+ st,bank-name = "GPIOB";
+ };
+
+ gpioc: gpio@40020800 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ reg = <0x800 0x400>;
+ clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOC)>;
+ st,bank-name = "GPIOC";
+ };
+
+ gpiod: gpio@40020c00 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ reg = <0xc00 0x400>;
+ clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOD)>;
+ st,bank-name = "GPIOD";
+ };
+
+ gpioe: gpio@40021000 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ reg = <0x1000 0x400>;
+ clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOE)>;
+ st,bank-name = "GPIOE";
+ };
+
+ gpiof: gpio@40021400 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ reg = <0x1400 0x400>;
+ clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOF)>;
+ st,bank-name = "GPIOF";
+ };
+
+ gpiog: gpio@40021800 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ reg = <0x1800 0x400>;
+ clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOG)>;
+ st,bank-name = "GPIOG";
+ };
+
+ gpioh: gpio@40021c00 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ reg = <0x1c00 0x400>;
+ clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOH)>;
+ st,bank-name = "GPIOH";
+ };
+
+ gpioi: gpio@40022000 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ reg = <0x2000 0x400>;
+ clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOI)>;
+ st,bank-name = "GPIOI";
+ };
+
+ gpioj: gpio@40022400 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ reg = <0x2400 0x400>;
+ clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOJ)>;
+ st,bank-name = "GPIOJ";
+ };
+
+ gpiok: gpio@40022800 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ reg = <0x2800 0x400>;
+ clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOK)>;
+ st,bank-name = "GPIOK";
+ };
+
+ usart1_pins_a: usart1@0 {
+ pins1 {
+ pinmux = <STM32F429_PA9_FUNC_USART1_TX>;
+ bias-disable;
+ drive-push-pull;
+ slew-rate = <0>;
+ };
+ pins2 {
+ pinmux = <STM32F429_PA10_FUNC_USART1_RX>;
+ bias-disable;
+ };
+ };
+
+ usart3_pins_a: usart3@0 {
+ pins1 {
+ pinmux = <STM32F429_PB10_FUNC_USART3_TX>;
+ bias-disable;
+ drive-push-pull;
+ slew-rate = <0>;
+ };
+ pins2 {
+ pinmux = <STM32F429_PB11_FUNC_USART3_RX>;
+ bias-disable;
+ };
+ };
+
+ usbotg_fs_pins_a: usbotg_fs@0 {
+ pins {
+ pinmux = <STM32F429_PA10_FUNC_OTG_FS_ID>,
+ <STM32F429_PA11_FUNC_OTG_FS_DM>,
+ <STM32F429_PA12_FUNC_OTG_FS_DP>;
+ bias-disable;
+ drive-push-pull;
+ slew-rate = <2>;
+ };
+ };
+
+ usbotg_fs_pins_b: usbotg_fs@1 {
+ pins {
+ pinmux = <STM32F429_PB12_FUNC_OTG_HS_ID>,
+ <STM32F429_PB14_FUNC_OTG_HS_DM>,
+ <STM32F429_PB15_FUNC_OTG_HS_DP>;
+ bias-disable;
+ drive-push-pull;
+ slew-rate = <2>;
+ };
+ };
+
+ usbotg_hs_pins_a: usbotg_hs@0 {
+ pins {
+ pinmux = <STM32F429_PH4_FUNC_OTG_HS_ULPI_NXT>,
+ <STM32F429_PI11_FUNC_OTG_HS_ULPI_DIR>,
+ <STM32F429_PC0_FUNC_OTG_HS_ULPI_STP>,
+ <STM32F429_PA5_FUNC_OTG_HS_ULPI_CK>,
+ <STM32F429_PA3_FUNC_OTG_HS_ULPI_D0>,
+ <STM32F429_PB0_FUNC_OTG_HS_ULPI_D1>,
+ <STM32F429_PB1_FUNC_OTG_HS_ULPI_D2>,
+ <STM32F429_PB10_FUNC_OTG_HS_ULPI_D3>,
+ <STM32F429_PB11_FUNC_OTG_HS_ULPI_D4>,
+ <STM32F429_PB12_FUNC_OTG_HS_ULPI_D5>,
+ <STM32F429_PB13_FUNC_OTG_HS_ULPI_D6>,
+ <STM32F429_PB5_FUNC_OTG_HS_ULPI_D7>;
+ bias-disable;
+ drive-push-pull;
+ slew-rate = <2>;
+ };
+ };
+
+ ethernet_mii: mii@0 {
+ pins {
+ pinmux = <STM32F429_PG13_FUNC_ETH_MII_TXD0_ETH_RMII_TXD0>,
+ <STM32F429_PG14_FUNC_ETH_MII_TXD1_ETH_RMII_TXD1>,
+ <STM32F429_PC2_FUNC_ETH_MII_TXD2>,
+ <STM32F429_PB8_FUNC_ETH_MII_TXD3>,
+ <STM32F429_PC3_FUNC_ETH_MII_TX_CLK>,
+ <STM32F429_PG11_FUNC_ETH_MII_TX_EN_ETH_RMII_TX_EN>,
+ <STM32F429_PA2_FUNC_ETH_MDIO>,
+ <STM32F429_PC1_FUNC_ETH_MDC>,
+ <STM32F429_PA1_FUNC_ETH_MII_RX_CLK_ETH_RMII_REF_CLK>,
+ <STM32F429_PA7_FUNC_ETH_MII_RX_DV_ETH_RMII_CRS_DV>,
+ <STM32F429_PC4_FUNC_ETH_MII_RXD0_ETH_RMII_RXD0>,
+ <STM32F429_PC5_FUNC_ETH_MII_RXD1_ETH_RMII_RXD1>,
+ <STM32F429_PH6_FUNC_ETH_MII_RXD2>,
+ <STM32F429_PH7_FUNC_ETH_MII_RXD3>;
+ slew-rate = <2>;
+ };
+ };
+
+ adc3_in8_pin: adc@200 {
+ pins {
+ pinmux = <STM32F429_PF10_FUNC_ANALOG>;
+ };
+ };
+
+ pwm1_pins: pwm@1 {
+ pins {
+ pinmux = <STM32F429_PA8_FUNC_TIM1_CH1>,
+ <STM32F429_PB13_FUNC_TIM1_CH1N>,
+ <STM32F429_PB12_FUNC_TIM1_BKIN>;
+ };
+ };
+
+ pwm3_pins: pwm@3 {
+ pins {
+ pinmux = <STM32F429_PB4_FUNC_TIM3_CH1>,
+ <STM32F429_PB5_FUNC_TIM3_CH2>;
+ };
+ };
+
+ i2c1_pins: i2c1@0 {
+ pins {
+ pinmux = <STM32F429_PB9_FUNC_I2C1_SDA>,
+ <STM32F429_PB6_FUNC_I2C1_SCL>;
+ bias-disable;
+ drive-open-drain;
+ slew-rate = <3>;
+ };
+ };
+
+ ltdc_pins: ltdc@0 {
+ pins {
+ pinmux = <STM32F429_PI12_FUNC_LCD_HSYNC>,
+ <STM32F429_PI13_FUNC_LCD_VSYNC>,
+ <STM32F429_PI14_FUNC_LCD_CLK>,
+ <STM32F429_PI15_FUNC_LCD_R0>,
+ <STM32F429_PJ0_FUNC_LCD_R1>,
+ <STM32F429_PJ1_FUNC_LCD_R2>,
+ <STM32F429_PJ2_FUNC_LCD_R3>,
+ <STM32F429_PJ3_FUNC_LCD_R4>,
+ <STM32F429_PJ4_FUNC_LCD_R5>,
+ <STM32F429_PJ5_FUNC_LCD_R6>,
+ <STM32F429_PJ6_FUNC_LCD_R7>,
+ <STM32F429_PJ7_FUNC_LCD_G0>,
+ <STM32F429_PJ8_FUNC_LCD_G1>,
+ <STM32F429_PJ9_FUNC_LCD_G2>,
+ <STM32F429_PJ10_FUNC_LCD_G3>,
+ <STM32F429_PJ11_FUNC_LCD_G4>,
+ <STM32F429_PJ12_FUNC_LCD_B0>,
+ <STM32F429_PJ13_FUNC_LCD_B1>,
+ <STM32F429_PJ14_FUNC_LCD_B2>,
+ <STM32F429_PJ15_FUNC_LCD_B3>,
+ <STM32F429_PK0_FUNC_LCD_G5>,
+ <STM32F429_PK1_FUNC_LCD_G6>,
+ <STM32F429_PK2_FUNC_LCD_G7>,
+ <STM32F429_PK3_FUNC_LCD_B4>,
+ <STM32F429_PK4_FUNC_LCD_B5>,
+ <STM32F429_PK5_FUNC_LCD_B6>,
+ <STM32F429_PK6_FUNC_LCD_B7>,
+ <STM32F429_PK7_FUNC_LCD_DE>;
+ slew-rate = <2>;
+ };
+ };
+
+ dcmi_pins: dcmi@0 {
+ pins {
+ pinmux = <STM32F429_PA4_FUNC_DCMI_HSYNC>,
+ <STM32F429_PB7_FUNC_DCMI_VSYNC>,
+ <STM32F429_PA6_FUNC_DCMI_PIXCLK>,
+ <STM32F429_PC6_FUNC_DCMI_D0>,
+ <STM32F429_PC7_FUNC_DCMI_D1>,
+ <STM32F429_PC8_FUNC_DCMI_D2>,
+ <STM32F429_PC9_FUNC_DCMI_D3>,
+ <STM32F429_PC11_FUNC_DCMI_D4>,
+ <STM32F429_PD3_FUNC_DCMI_D5>,
+ <STM32F429_PB8_FUNC_DCMI_D6>,
+ <STM32F429_PE6_FUNC_DCMI_D7>,
+ <STM32F429_PC10_FUNC_DCMI_D8>,
+ <STM32F429_PC12_FUNC_DCMI_D9>,
+ <STM32F429_PD6_FUNC_DCMI_D10>,
+ <STM32F429_PD2_FUNC_DCMI_D11>;
+ bias-disable;
+ drive-push-pull;
+ slew-rate = <3>;
+ };
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/stm32f429-disco.dts b/arch/arm/boot/dts/stm32f429-disco.dts
index 191fa50e34eb..5ceb2cf3777f 100644
--- a/arch/arm/boot/dts/stm32f429-disco.dts
+++ b/arch/arm/boot/dts/stm32f429-disco.dts
@@ -47,6 +47,7 @@
/dts-v1/;
#include "stm32f429.dtsi"
+#include "stm32f429-pinctrl.dtsi"
#include <dt-bindings/input/input.h>
/ {
@@ -54,7 +55,7 @@
compatible = "st,stm32f429i-disco", "st,stm32f429";
chosen {
- bootargs = "root=/dev/ram rdinit=/linuxrc";
+ bootargs = "root=/dev/ram";
stdout-path = "serial0:115200n8";
};
@@ -102,6 +103,10 @@
clock-frequency = <8000000>;
};
+&crc {
+ status = "okay";
+};
+
&rtc {
assigned-clocks = <&rcc 1 CLK_RTC>;
assigned-clock-parents = <&rcc 1 CLK_LSI>;
diff --git a/arch/arm/boot/dts/stm32f429-pinctrl.dtsi b/arch/arm/boot/dts/stm32f429-pinctrl.dtsi
new file mode 100644
index 000000000000..3e7a17d9112e
--- /dev/null
+++ b/arch/arm/boot/dts/stm32f429-pinctrl.dtsi
@@ -0,0 +1,95 @@
+/*
+ * Copyright 2017 - Alexandre Torgue <alexandre.torgue@st.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "stm32f4-pinctrl.dtsi"
+
+/ {
+ soc {
+ pinctrl: pin-controller {
+ compatible = "st,stm32f429-pinctrl";
+
+ gpioa: gpio@40020000 {
+ gpio-ranges = <&pinctrl 0 0 16>;
+ };
+
+ gpiob: gpio@40020400 {
+ gpio-ranges = <&pinctrl 0 16 16>;
+ };
+
+ gpioc: gpio@40020800 {
+ gpio-ranges = <&pinctrl 0 32 16>;
+ };
+
+ gpiod: gpio@40020c00 {
+ gpio-ranges = <&pinctrl 0 48 16>;
+ };
+
+ gpioe: gpio@40021000 {
+ gpio-ranges = <&pinctrl 0 64 16>;
+ };
+
+ gpiof: gpio@40021400 {
+ gpio-ranges = <&pinctrl 0 80 16>;
+ };
+
+ gpiog: gpio@40021800 {
+ gpio-ranges = <&pinctrl 0 96 16>;
+ };
+
+ gpioh: gpio@40021c00 {
+ gpio-ranges = <&pinctrl 0 112 16>;
+ };
+
+ gpioi: gpio@40022000 {
+ gpio-ranges = <&pinctrl 0 128 16>;
+ };
+
+ gpioj: gpio@40022400 {
+ gpio-ranges = <&pinctrl 0 144 16>;
+ };
+
+ gpiok: gpio@40022800 {
+ gpio-ranges = <&pinctrl 0 160 8>;
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/stm32f429.dtsi b/arch/arm/boot/dts/stm32f429.dtsi
index b2a2b5c38caa..5b36eb114ddc 100644
--- a/arch/arm/boot/dts/stm32f429.dtsi
+++ b/arch/arm/boot/dts/stm32f429.dtsi
@@ -47,7 +47,6 @@
#include "skeleton.dtsi"
#include "armv7-m.dtsi"
-#include <dt-bindings/pinctrl/stm32f429-pinfunc.h>
#include <dt-bindings/clock/stm32fx-clock.h>
#include <dt-bindings/mfd/stm32f4-rcc.h>
@@ -65,7 +64,7 @@
clock-frequency = <32768>;
};
- clk-lsi {
+ clk_lsi: clk-lsi {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <32000>;
@@ -307,6 +306,13 @@
status = "disabled";
};
+ iwdg: watchdog@40003000 {
+ compatible = "st,stm32-iwdg";
+ reg = <0x40003000 0x400>;
+ clocks = <&clk_lsi>;
+ status = "disabled";
+ };
+
usart2: serial@40004400 {
compatible = "st,stm32-usart", "st,stm32-uart";
reg = <0x40004400 0x400>;
@@ -354,6 +360,31 @@
status = "disabled";
};
+ dac: dac@40007400 {
+ compatible = "st,stm32f4-dac-core";
+ reg = <0x40007400 0x400>;
+ resets = <&rcc STM32F4_APB1_RESET(DAC)>;
+ clocks = <&rcc 0 STM32F4_APB1_CLOCK(DAC)>;
+ clock-names = "pclk";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ dac1: dac@1 {
+ compatible = "st,stm32-dac";
+ #io-channels-cells = <1>;
+ reg = <1>;
+ status = "disabled";
+ };
+
+ dac2: dac@2 {
+ compatible = "st,stm32-dac";
+ #io-channels-cells = <1>;
+ reg = <2>;
+ status = "disabled";
+ };
+ };
+
usart7: serial@40007800 {
compatible = "st,stm32-usart", "st,stm32-uart";
reg = <0x40007800 0x400>;
@@ -549,221 +580,21 @@
reg = <0x40007000 0x400>;
};
- pin-controller {
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "st,stm32f429-pinctrl";
- ranges = <0 0x40020000 0x3000>;
- interrupt-parent = <&exti>;
- st,syscfg = <&syscfg 0x8>;
- pins-are-numbered;
-
- gpioa: gpio@40020000 {
- gpio-controller;
- #gpio-cells = <2>;
- reg = <0x0 0x400>;
- clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOA)>;
- st,bank-name = "GPIOA";
- };
-
- gpiob: gpio@40020400 {
- gpio-controller;
- #gpio-cells = <2>;
- reg = <0x400 0x400>;
- clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOB)>;
- st,bank-name = "GPIOB";
- };
-
- gpioc: gpio@40020800 {
- gpio-controller;
- #gpio-cells = <2>;
- reg = <0x800 0x400>;
- clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOC)>;
- st,bank-name = "GPIOC";
- };
-
- gpiod: gpio@40020c00 {
- gpio-controller;
- #gpio-cells = <2>;
- reg = <0xc00 0x400>;
- clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOD)>;
- st,bank-name = "GPIOD";
- };
-
- gpioe: gpio@40021000 {
- gpio-controller;
- #gpio-cells = <2>;
- reg = <0x1000 0x400>;
- clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOE)>;
- st,bank-name = "GPIOE";
- };
-
- gpiof: gpio@40021400 {
- gpio-controller;
- #gpio-cells = <2>;
- reg = <0x1400 0x400>;
- clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOF)>;
- st,bank-name = "GPIOF";
- };
-
- gpiog: gpio@40021800 {
- gpio-controller;
- #gpio-cells = <2>;
- reg = <0x1800 0x400>;
- clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOG)>;
- st,bank-name = "GPIOG";
- };
-
- gpioh: gpio@40021c00 {
- gpio-controller;
- #gpio-cells = <2>;
- reg = <0x1c00 0x400>;
- clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOH)>;
- st,bank-name = "GPIOH";
- };
-
- gpioi: gpio@40022000 {
- gpio-controller;
- #gpio-cells = <2>;
- reg = <0x2000 0x400>;
- clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOI)>;
- st,bank-name = "GPIOI";
- };
-
- gpioj: gpio@40022400 {
- gpio-controller;
- #gpio-cells = <2>;
- reg = <0x2400 0x400>;
- clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOJ)>;
- st,bank-name = "GPIOJ";
- };
-
- gpiok: gpio@40022800 {
- gpio-controller;
- #gpio-cells = <2>;
- reg = <0x2800 0x400>;
- clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOK)>;
- st,bank-name = "GPIOK";
- };
-
- usart1_pins_a: usart1@0 {
- pins1 {
- pinmux = <STM32F429_PA9_FUNC_USART1_TX>;
- bias-disable;
- drive-push-pull;
- slew-rate = <0>;
- };
- pins2 {
- pinmux = <STM32F429_PA10_FUNC_USART1_RX>;
- bias-disable;
- };
- };
-
- usart3_pins_a: usart3@0 {
- pins1 {
- pinmux = <STM32F429_PB10_FUNC_USART3_TX>;
- bias-disable;
- drive-push-pull;
- slew-rate = <0>;
- };
- pins2 {
- pinmux = <STM32F429_PB11_FUNC_USART3_RX>;
- bias-disable;
- };
- };
-
- usbotg_fs_pins_a: usbotg_fs@0 {
- pins {
- pinmux = <STM32F429_PA10_FUNC_OTG_FS_ID>,
- <STM32F429_PA11_FUNC_OTG_FS_DM>,
- <STM32F429_PA12_FUNC_OTG_FS_DP>;
- bias-disable;
- drive-push-pull;
- slew-rate = <2>;
- };
- };
-
- usbotg_fs_pins_b: usbotg_fs@1 {
- pins {
- pinmux = <STM32F429_PB12_FUNC_OTG_HS_ID>,
- <STM32F429_PB14_FUNC_OTG_HS_DM>,
- <STM32F429_PB15_FUNC_OTG_HS_DP>;
- bias-disable;
- drive-push-pull;
- slew-rate = <2>;
- };
- };
-
- usbotg_hs_pins_a: usbotg_hs@0 {
- pins {
- pinmux = <STM32F429_PH4_FUNC_OTG_HS_ULPI_NXT>,
- <STM32F429_PI11_FUNC_OTG_HS_ULPI_DIR>,
- <STM32F429_PC0_FUNC_OTG_HS_ULPI_STP>,
- <STM32F429_PA5_FUNC_OTG_HS_ULPI_CK>,
- <STM32F429_PA3_FUNC_OTG_HS_ULPI_D0>,
- <STM32F429_PB0_FUNC_OTG_HS_ULPI_D1>,
- <STM32F429_PB1_FUNC_OTG_HS_ULPI_D2>,
- <STM32F429_PB10_FUNC_OTG_HS_ULPI_D3>,
- <STM32F429_PB11_FUNC_OTG_HS_ULPI_D4>,
- <STM32F429_PB12_FUNC_OTG_HS_ULPI_D5>,
- <STM32F429_PB13_FUNC_OTG_HS_ULPI_D6>,
- <STM32F429_PB5_FUNC_OTG_HS_ULPI_D7>;
- bias-disable;
- drive-push-pull;
- slew-rate = <2>;
- };
- };
-
- ethernet_mii: mii@0 {
- pins {
- pinmux = <STM32F429_PG13_FUNC_ETH_MII_TXD0_ETH_RMII_TXD0>,
- <STM32F429_PG14_FUNC_ETH_MII_TXD1_ETH_RMII_TXD1>,
- <STM32F429_PC2_FUNC_ETH_MII_TXD2>,
- <STM32F429_PB8_FUNC_ETH_MII_TXD3>,
- <STM32F429_PC3_FUNC_ETH_MII_TX_CLK>,
- <STM32F429_PG11_FUNC_ETH_MII_TX_EN_ETH_RMII_TX_EN>,
- <STM32F429_PA2_FUNC_ETH_MDIO>,
- <STM32F429_PC1_FUNC_ETH_MDC>,
- <STM32F429_PA1_FUNC_ETH_MII_RX_CLK_ETH_RMII_REF_CLK>,
- <STM32F429_PA7_FUNC_ETH_MII_RX_DV_ETH_RMII_CRS_DV>,
- <STM32F429_PC4_FUNC_ETH_MII_RXD0_ETH_RMII_RXD0>,
- <STM32F429_PC5_FUNC_ETH_MII_RXD1_ETH_RMII_RXD1>,
- <STM32F429_PH6_FUNC_ETH_MII_RXD2>,
- <STM32F429_PH7_FUNC_ETH_MII_RXD3>;
- slew-rate = <2>;
- };
- };
-
- adc3_in8_pin: adc@200 {
- pins {
- pinmux = <STM32F429_PF10_FUNC_ANALOG>;
- };
- };
-
- pwm1_pins: pwm@1 {
- pins {
- pinmux = <STM32F429_PA8_FUNC_TIM1_CH1>,
- <STM32F429_PB13_FUNC_TIM1_CH1N>,
- <STM32F429_PB12_FUNC_TIM1_BKIN>;
- };
- };
-
- pwm3_pins: pwm@3 {
- pins {
- pinmux = <STM32F429_PB4_FUNC_TIM3_CH1>,
- <STM32F429_PB5_FUNC_TIM3_CH2>;
- };
- };
+ ltdc: display-controller@40016800 {
+ compatible = "st,stm32-ltdc";
+ reg = <0x40016800 0x200>;
+ interrupts = <88>, <89>;
+ resets = <&rcc STM32F4_APB2_RESET(LTDC)>;
+ clocks = <&rcc 1 CLK_LCD>;
+ clock-names = "lcd";
+ status = "disabled";
+ };
- i2c1_pins: i2c1@0 {
- pins {
- pinmux = <STM32F429_PB9_FUNC_I2C1_SDA>,
- <STM32F429_PB6_FUNC_I2C1_SCL>;
- bias-disable;
- drive-open-drain;
- slew-rate = <3>;
- };
- };
+ crc: crc@40023000 {
+ compatible = "st,stm32f4-crc";
+ reg = <0x40023000 0x400>;
+ clocks = <&rcc 0 STM32F4_AHB1_CLOCK(CRC)>;
+ status = "disabled";
};
rcc: rcc@40023810 {
@@ -842,6 +673,20 @@
status = "disabled";
};
+ dcmi: dcmi@50050000 {
+ compatible = "st,stm32-dcmi";
+ reg = <0x50050000 0x400>;
+ interrupts = <78>;
+ resets = <&rcc STM32F4_AHB2_RESET(DCMI)>;
+ clocks = <&rcc 0 STM32F4_AHB2_CLOCK(DCMI)>;
+ clock-names = "mclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&dcmi_pins>;
+ dmas = <&dma2 1 1 0x414 0x3>;
+ dma-names = "tx";
+ status = "disabled";
+ };
+
rng: rng@50060800 {
compatible = "st,stm32-rng";
reg = <0x50060800 0x400>;
diff --git a/arch/arm/boot/dts/stm32f469-disco.dts b/arch/arm/boot/dts/stm32f469-disco.dts
index 75470c34b92c..c18acbe4cf4e 100644
--- a/arch/arm/boot/dts/stm32f469-disco.dts
+++ b/arch/arm/boot/dts/stm32f469-disco.dts
@@ -47,13 +47,14 @@
/dts-v1/;
#include "stm32f429.dtsi"
+#include "stm32f469-pinctrl.dtsi"
/ {
model = "STMicroelectronics STM32F469i-DISCO board";
compatible = "st,stm32f469i-disco", "st,stm32f469";
chosen {
- bootargs = "root=/dev/ram rdinit=/linuxrc";
+ bootargs = "root=/dev/ram";
stdout-path = "serial0:115200n8";
};
diff --git a/arch/arm/boot/dts/stm32f469-pinctrl.dtsi b/arch/arm/boot/dts/stm32f469-pinctrl.dtsi
new file mode 100644
index 000000000000..fff542662eea
--- /dev/null
+++ b/arch/arm/boot/dts/stm32f469-pinctrl.dtsi
@@ -0,0 +1,96 @@
+/*
+ * Copyright 2017 - Alexandre Torgue <alexandre.torgue@st.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "stm32f4-pinctrl.dtsi"
+
+/ {
+ soc {
+ pinctrl: pin-controller {
+ compatible = "st,stm32f469-pinctrl";
+
+ gpioa: gpio@40020000 {
+ gpio-ranges = <&pinctrl 0 0 16>;
+ };
+
+ gpiob: gpio@40020400 {
+ gpio-ranges = <&pinctrl 0 16 16>;
+ };
+
+ gpioc: gpio@40020800 {
+ gpio-ranges = <&pinctrl 0 32 16>;
+ };
+
+ gpiod: gpio@40020c00 {
+ gpio-ranges = <&pinctrl 0 48 16>;
+ };
+
+ gpioe: gpio@40021000 {
+ gpio-ranges = <&pinctrl 0 64 16>;
+ };
+
+ gpiof: gpio@40021400 {
+ gpio-ranges = <&pinctrl 0 80 16>;
+ };
+
+ gpiog: gpio@40021800 {
+ gpio-ranges = <&pinctrl 0 96 16>;
+ };
+
+ gpioh: gpio@40021c00 {
+ gpio-ranges = <&pinctrl 0 112 16>;
+ };
+
+ gpioi: gpio@40022000 {
+ gpio-ranges = <&pinctrl 0 128 16>;
+ };
+
+ gpioj: gpio@40022400 {
+ gpio-ranges = <&pinctrl 0 144 6>,
+ <&pinctrl 12 156 4>;
+ };
+
+ gpiok: gpio@40022800 {
+ gpio-ranges = <&pinctrl 3 163 5>;
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/stm32f746-disco.dts b/arch/arm/boot/dts/stm32f746-disco.dts
new file mode 100644
index 000000000000..18f656074437
--- /dev/null
+++ b/arch/arm/boot/dts/stm32f746-disco.dts
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2017 - Vikas MANOCHA <vikas.manocha@st.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include "stm32f746.dtsi"
+#include <dt-bindings/input/input.h>
+
+/ {
+ model = "STMicroelectronics STM32F746-DISCO board";
+ compatible = "st,stm32f746-disco", "st,stm32f746";
+
+ chosen {
+ bootargs = "root=/dev/ram";
+ stdout-path = "serial0:115200n8";
+ };
+
+ memory {
+ reg = <0xC0000000 0x800000>;
+ };
+
+ aliases {
+ serial0 = &usart1;
+ };
+
+};
+
+&clk_hse {
+ clock-frequency = <25000000>;
+};
+
+&usart1 {
+ pinctrl-0 = <&usart1_pins_b>;
+ pinctrl-names = "default";
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/stm32f746.dtsi b/arch/arm/boot/dts/stm32f746.dtsi
index c2765ce12e2e..5633860037d2 100644
--- a/arch/arm/boot/dts/stm32f746.dtsi
+++ b/arch/arm/boot/dts/stm32f746.dtsi
@@ -167,6 +167,15 @@
status = "disabled";
};
+ cec: cec@40006c00 {
+ compatible = "st,stm32-cec";
+ reg = <0x40006C00 0x400>;
+ interrupts = <94>;
+ clocks = <&rcc 0 STM32F7_APB1_CLOCK(CEC)>, <&rcc 1 CLK_HDMI_CEC>;
+ clock-names = "cec", "hdmi-cec";
+ status = "disabled";
+ };
+
usart7: serial@40007800 {
compatible = "st,stm32f7-usart", "st,stm32f7-uart";
reg = <0x40007800 0x400>;
@@ -229,6 +238,8 @@
gpioa: gpio@40020000 {
gpio-controller;
#gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
reg = <0x0 0x400>;
clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOA)>;
st,bank-name = "GPIOA";
@@ -237,6 +248,8 @@
gpiob: gpio@40020400 {
gpio-controller;
#gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
reg = <0x400 0x400>;
clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOB)>;
st,bank-name = "GPIOB";
@@ -245,6 +258,8 @@
gpioc: gpio@40020800 {
gpio-controller;
#gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
reg = <0x800 0x400>;
clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOC)>;
st,bank-name = "GPIOC";
@@ -253,6 +268,8 @@
gpiod: gpio@40020c00 {
gpio-controller;
#gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
reg = <0xc00 0x400>;
clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOD)>;
st,bank-name = "GPIOD";
@@ -261,6 +278,8 @@
gpioe: gpio@40021000 {
gpio-controller;
#gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
reg = <0x1000 0x400>;
clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOE)>;
st,bank-name = "GPIOE";
@@ -269,6 +288,8 @@
gpiof: gpio@40021400 {
gpio-controller;
#gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
reg = <0x1400 0x400>;
clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOF)>;
st,bank-name = "GPIOF";
@@ -277,6 +298,8 @@
gpiog: gpio@40021800 {
gpio-controller;
#gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
reg = <0x1800 0x400>;
clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOG)>;
st,bank-name = "GPIOG";
@@ -285,6 +308,8 @@
gpioh: gpio@40021c00 {
gpio-controller;
#gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
reg = <0x1c00 0x400>;
clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOH)>;
st,bank-name = "GPIOH";
@@ -293,6 +318,8 @@
gpioi: gpio@40022000 {
gpio-controller;
#gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
reg = <0x2000 0x400>;
clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOI)>;
st,bank-name = "GPIOI";
@@ -301,6 +328,8 @@
gpioj: gpio@40022400 {
gpio-controller;
#gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
reg = <0x2400 0x400>;
clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOJ)>;
st,bank-name = "GPIOJ";
@@ -309,11 +338,22 @@
gpiok: gpio@40022800 {
gpio-controller;
#gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
reg = <0x2800 0x400>;
clocks = <&rcc 0 STM32F7_AHB1_CLOCK(GPIOK)>;
st,bank-name = "GPIOK";
};
+ cec_pins_a: cec@0 {
+ pins {
+ pinmux = <STM32F746_PA15_FUNC_HDMI_CEC>;
+ slew-rate = <0>;
+ drive-open-drain;
+ bias-disable;
+ };
+ };
+
usart1_pins_a: usart1@0 {
pins1 {
pinmux = <STM32F746_PA9_FUNC_USART1_TX>;
@@ -326,6 +366,19 @@
bias-disable;
};
};
+
+ usart1_pins_b: usart1@1 {
+ pins1 {
+ pinmux = <STM32F746_PA9_FUNC_USART1_TX>;
+ bias-disable;
+ drive-push-pull;
+ slew-rate = <0>;
+ };
+ pins2 {
+ pinmux = <STM32F746_PB7_FUNC_USART1_RX>;
+ bias-disable;
+ };
+ };
};
crc: crc@40023000 {
@@ -336,6 +389,7 @@
};
rcc: rcc@40023800 {
+ #reset-cells = <1>;
#clock-cells = <2>;
compatible = "st,stm32f746-rcc", "st,stm32-rcc";
reg = <0x40023800 0x400>;
@@ -344,6 +398,39 @@
assigned-clocks = <&rcc 1 CLK_HSE_RTC>;
assigned-clock-rates = <1000000>;
};
+
+ dma1: dma@40026000 {
+ compatible = "st,stm32-dma";
+ reg = <0x40026000 0x400>;
+ interrupts = <11>,
+ <12>,
+ <13>,
+ <14>,
+ <15>,
+ <16>,
+ <17>,
+ <47>;
+ clocks = <&rcc 0 STM32F7_AHB1_CLOCK(DMA1)>;
+ #dma-cells = <4>;
+ status = "disabled";
+ };
+
+ dma2: dma@40026400 {
+ compatible = "st,stm32-dma";
+ reg = <0x40026400 0x400>;
+ interrupts = <56>,
+ <57>,
+ <58>,
+ <59>,
+ <60>,
+ <68>,
+ <69>,
+ <70>;
+ clocks = <&rcc 0 STM32F7_AHB1_CLOCK(DMA2)>;
+ #dma-cells = <4>;
+ st,mem2mem;
+ status = "disabled";
+ };
};
};
diff --git a/arch/arm/boot/dts/stm32f769-disco.dts b/arch/arm/boot/dts/stm32f769-disco.dts
new file mode 100644
index 000000000000..4463ca13a740
--- /dev/null
+++ b/arch/arm/boot/dts/stm32f769-disco.dts
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2017 - Vikas MANOCHA <vikas.manocha@st.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include "stm32f746.dtsi"
+#include <dt-bindings/input/input.h>
+
+/ {
+ model = "STMicroelectronics STM32F769-DISCO board";
+ compatible = "st,stm32f769-disco", "st,stm32f7";
+
+ chosen {
+ bootargs = "root=/dev/ram";
+ stdout-path = "serial0:115200n8";
+ };
+
+ memory {
+ reg = <0xC0000000 0x1000000>;
+ };
+
+ aliases {
+ serial0 = &usart1;
+ };
+
+};
+
+&cec {
+ pinctrl-0 = <&cec_pins_a>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
+&clk_hse {
+ clock-frequency = <25000000>;
+};
+
+&usart1 {
+ pinctrl-0 = <&usart1_pins_a>;
+ pinctrl-names = "default";
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/stm32h743-pinctrl.dtsi b/arch/arm/boot/dts/stm32h743-pinctrl.dtsi
index fcc1e0640233..76bbd6575fae 100644
--- a/arch/arm/boot/dts/stm32h743-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32h743-pinctrl.dtsi
@@ -151,6 +151,19 @@
bias-disable;
};
};
+
+ usart2_pins: usart2@0 {
+ pins1 {
+ pinmux = <STM32H7_PD5_FUNC_USART2_TX>;
+ bias-disable;
+ drive-push-pull;
+ slew-rate = <0>;
+ };
+ pins2 {
+ pinmux = <STM32H7_PD6_FUNC_USART2_RX>;
+ bias-disable;
+ };
+ };
};
};
};
diff --git a/arch/arm/boot/dts/stm32h743.dtsi b/arch/arm/boot/dts/stm32h743.dtsi
index 46856298ee16..58ec2275181e 100644
--- a/arch/arm/boot/dts/stm32h743.dtsi
+++ b/arch/arm/boot/dts/stm32h743.dtsi
@@ -59,6 +59,45 @@
};
soc {
+ timer5: timer@40000c00 {
+ compatible = "st,stm32-timer";
+ reg = <0x40000c00 0x400>;
+ interrupts = <50>;
+ clocks = <&timer_clk>;
+ };
+
+ usart2: serial@40004400 {
+ compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+ reg = <0x40004400 0x400>;
+ interrupts = <38>;
+ status = "disabled";
+ clocks = <&timer_clk>;
+ };
+
+ dac: dac@40007400 {
+ compatible = "st,stm32h7-dac-core";
+ reg = <0x40007400 0x400>;
+ clocks = <&timer_clk>;
+ clock-names = "pclk";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ dac1: dac@1 {
+ compatible = "st,stm32-dac";
+ #io-channels-cells = <1>;
+ reg = <1>;
+ status = "disabled";
+ };
+
+ dac2: dac@2 {
+ compatible = "st,stm32-dac";
+ #io-channels-cells = <1>;
+ reg = <2>;
+ status = "disabled";
+ };
+ };
+
usart1: serial@40011000 {
compatible = "st,stm32f7-usart", "st,stm32f7-uart";
reg = <0x40011000 0x400>;
@@ -68,11 +107,91 @@
};
- timer5: timer@40000c00 {
- compatible = "st,stm32-timer";
- reg = <0x40000c00 0x400>;
- interrupts = <50>;
+ dma1: dma@40020000 {
+ compatible = "st,stm32-dma";
+ reg = <0x40020000 0x400>;
+ interrupts = <11>,
+ <12>,
+ <13>,
+ <14>,
+ <15>,
+ <16>,
+ <17>,
+ <47>;
+ clocks = <&timer_clk>;
+ #dma-cells = <4>;
+ st,mem2mem;
+ status = "disabled";
+ };
+
+ dma2: dma@40020400 {
+ compatible = "st,stm32-dma";
+ reg = <0x40020400 0x400>;
+ interrupts = <56>,
+ <57>,
+ <58>,
+ <59>,
+ <60>,
+ <68>,
+ <69>,
+ <70>;
clocks = <&timer_clk>;
+ #dma-cells = <4>;
+ st,mem2mem;
+ status = "disabled";
+ };
+
+ adc_12: adc@40022000 {
+ compatible = "st,stm32h7-adc-core";
+ reg = <0x40022000 0x400>;
+ interrupts = <18>;
+ clocks = <&timer_clk>;
+ clock-names = "bus";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ adc1: adc@0 {
+ compatible = "st,stm32h7-adc";
+ #io-channel-cells = <1>;
+ reg = <0x0>;
+ interrupt-parent = <&adc_12>;
+ interrupts = <0>;
+ status = "disabled";
+ };
+
+ adc2: adc@100 {
+ compatible = "st,stm32h7-adc";
+ #io-channel-cells = <1>;
+ reg = <0x100>;
+ interrupt-parent = <&adc_12>;
+ interrupts = <1>;
+ status = "disabled";
+ };
+ };
+
+ adc_3: adc@58026000 {
+ compatible = "st,stm32h7-adc-core";
+ reg = <0x58026000 0x400>;
+ interrupts = <127>;
+ clocks = <&timer_clk>;
+ clock-names = "bus";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ adc3: adc@0 {
+ compatible = "st,stm32h7-adc";
+ #io-channel-cells = <1>;
+ reg = <0x0>;
+ interrupt-parent = <&adc_3>;
+ interrupts = <0>;
+ status = "disabled";
+ };
};
};
};
diff --git a/arch/arm/boot/dts/stm32h743i-disco.dts b/arch/arm/boot/dts/stm32h743i-disco.dts
new file mode 100644
index 000000000000..79e841d94079
--- /dev/null
+++ b/arch/arm/boot/dts/stm32h743i-disco.dts
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2017 - Patrice Chotard <patrice.chotard@st.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include "stm32h743.dtsi"
+#include "stm32h743-pinctrl.dtsi"
+
+/ {
+ model = "STMicroelectronics STM32H743i-Discovery board";
+ compatible = "st,stm32h743i-disco", "st,stm32h743";
+
+ chosen {
+ bootargs = "root=/dev/ram";
+ stdout-path = "serial0:115200n8";
+ };
+
+ memory {
+ reg = <0xd0000000 0x2000000>;
+ };
+
+ aliases {
+ serial0 = &usart2;
+ };
+};
+
+&clk_hse {
+ clock-frequency = <125000000>;
+};
+
+&usart2 {
+ pinctrl-0 = <&usart2_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/stm32h743i-eval.dts b/arch/arm/boot/dts/stm32h743i-eval.dts
index c6effbb36e4a..6c07786e7ddb 100644
--- a/arch/arm/boot/dts/stm32h743i-eval.dts
+++ b/arch/arm/boot/dts/stm32h743i-eval.dts
@@ -60,6 +60,24 @@
aliases {
serial0 = &usart1;
};
+
+ vdda: regulator-vdda {
+ compatible = "regulator-fixed";
+ regulator-name = "vdda";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+};
+
+&adc_12 {
+ vref-supply = <&vdda>;
+ status = "okay";
+ adc1: adc@0 {
+ /* potentiometer */
+ st,adc-channels = <0>;
+ status = "okay";
+ };
};
&clk_hse {
diff --git a/arch/arm/boot/dts/sun4i-a10-a1000.dts b/arch/arm/boot/dts/sun4i-a10-a1000.dts
index f2a01fe2bebc..f80d37ddc4c6 100644
--- a/arch/arm/boot/dts/sun4i-a10-a1000.dts
+++ b/arch/arm/boot/dts/sun4i-a10-a1000.dts
@@ -171,7 +171,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts b/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts
index 942d739a4384..6b02de592a02 100644
--- a/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts
+++ b/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts
@@ -109,7 +109,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts b/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts
index 17f8c5ec011c..a7d61994b8fd 100644
--- a/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts
+++ b/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts
@@ -128,7 +128,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
index d844938e2aa7..404ce7694899 100644
--- a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
+++ b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
@@ -142,7 +142,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
@@ -182,6 +182,10 @@
#include "axp209.dtsi"
+&ac_power_supply {
+ status = "okay";
+};
+
&reg_dcdc2 {
regulator-always-on;
regulator-min-microvolt = <1000000>;
diff --git a/arch/arm/boot/dts/sun4i-a10-dserve-dsrv9703c.dts b/arch/arm/boot/dts/sun4i-a10-dserve-dsrv9703c.dts
index aad3bec1cb39..e0777ae808c7 100644
--- a/arch/arm/boot/dts/sun4i-a10-dserve-dsrv9703c.dts
+++ b/arch/arm/boot/dts/sun4i-a10-dserve-dsrv9703c.dts
@@ -163,7 +163,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts b/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts
index 9616cdecce93..d8bfd7b74916 100644
--- a/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts
+++ b/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts
@@ -146,7 +146,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH01 */
diff --git a/arch/arm/boot/dts/sun4i-a10-hackberry.dts b/arch/arm/boot/dts/sun4i-a10-hackberry.dts
index a1a7282199d5..856cfc9128e6 100644
--- a/arch/arm/boot/dts/sun4i-a10-hackberry.dts
+++ b/arch/arm/boot/dts/sun4i-a10-hackberry.dts
@@ -107,7 +107,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts b/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts
index 85dcf81ab64e..6506595268b2 100644
--- a/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts
+++ b/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts
@@ -79,7 +79,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
@@ -120,10 +120,6 @@
status = "okay";
};
-&usb2_vbus_pin_a {
- pins = "PH6";
-};
-
&usb_otg {
dr_mode = "otg";
status = "okay";
diff --git a/arch/arm/boot/dts/sun4i-a10-inet1.dts b/arch/arm/boot/dts/sun4i-a10-inet1.dts
index b8923b92cb36..d51d8c302daf 100644
--- a/arch/arm/boot/dts/sun4i-a10-inet1.dts
+++ b/arch/arm/boot/dts/sun4i-a10-inet1.dts
@@ -161,7 +161,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts b/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts
index a1a2bbb3f9d3..a8e479fe43ca 100644
--- a/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts
+++ b/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts
@@ -147,7 +147,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-inet9f-rev03.dts b/arch/arm/boot/dts/sun4i-a10-inet9f-rev03.dts
index 4a27eb9102cd..2acb89a87d41 100644
--- a/arch/arm/boot/dts/sun4i-a10-inet9f-rev03.dts
+++ b/arch/arm/boot/dts/sun4i-a10-inet9f-rev03.dts
@@ -305,7 +305,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-itead-iteaduino-plus.dts b/arch/arm/boot/dts/sun4i-a10-itead-iteaduino-plus.dts
index 4e798f014c99..92e3e030ced3 100644
--- a/arch/arm/boot/dts/sun4i-a10-itead-iteaduino-plus.dts
+++ b/arch/arm/boot/dts/sun4i-a10-itead-iteaduino-plus.dts
@@ -100,7 +100,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts b/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts
index 308dc1513041..92b2d4af3d21 100644
--- a/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts
+++ b/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts
@@ -140,7 +140,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-marsboard.dts b/arch/arm/boot/dts/sun4i-a10-marsboard.dts
index 98a5f7258dca..0f927da28ee1 100644
--- a/arch/arm/boot/dts/sun4i-a10-marsboard.dts
+++ b/arch/arm/boot/dts/sun4i-a10-marsboard.dts
@@ -141,7 +141,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-mini-xplus.dts b/arch/arm/boot/dts/sun4i-a10-mini-xplus.dts
index 484c57493bd2..a5ed9e4e22c6 100644
--- a/arch/arm/boot/dts/sun4i-a10-mini-xplus.dts
+++ b/arch/arm/boot/dts/sun4i-a10-mini-xplus.dts
@@ -97,7 +97,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-mk802.dts b/arch/arm/boot/dts/sun4i-a10-mk802.dts
index 2b75745cd246..81db6824a2c7 100644
--- a/arch/arm/boot/dts/sun4i-a10-mk802.dts
+++ b/arch/arm/boot/dts/sun4i-a10-mk802.dts
@@ -72,7 +72,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-mk802ii.dts b/arch/arm/boot/dts/sun4i-a10-mk802ii.dts
index c861fa7e356c..e74a881fd9a7 100644
--- a/arch/arm/boot/dts/sun4i-a10-mk802ii.dts
+++ b/arch/arm/boot/dts/sun4i-a10-mk802ii.dts
@@ -83,7 +83,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts b/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
index 3a2522a9419d..462412ee903c 100644
--- a/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
+++ b/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
@@ -145,7 +145,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-pcduino.dts b/arch/arm/boot/dts/sun4i-a10-pcduino.dts
index 83596fd2ccfc..84f55e76df0c 100644
--- a/arch/arm/boot/dts/sun4i-a10-pcduino.dts
+++ b/arch/arm/boot/dts/sun4i-a10-pcduino.dts
@@ -147,7 +147,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts b/arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts
index a68c7cc53b94..c0f8c88b5a7d 100644
--- a/arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts
+++ b/arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts
@@ -149,7 +149,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
index b63668ece151..41c2579143fd 100644
--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
@@ -1030,12 +1030,6 @@
bias-pull-up;
};
- mmc0_cd_pin_reference_design: mmc0_cd_pin@0 {
- pins = "PH1";
- function = "gpio_in";
- bias-pull-up;
- };
-
ps20_pins_a: ps20@0 {
pins = "PI20", "PI21";
function = "ps2";
diff --git a/arch/arm/boot/dts/sun5i-a10s-auxtek-t003.dts b/arch/arm/boot/dts/sun5i-a10s-auxtek-t003.dts
index c6f742a7e69f..d2dee8d434bf 100644
--- a/arch/arm/boot/dts/sun5i-a10s-auxtek-t003.dts
+++ b/arch/arm/boot/dts/sun5i-a10s-auxtek-t003.dts
@@ -136,14 +136,6 @@
status = "okay";
};
-&usb0_vbus_pin_a {
- pins = "PG13";
-};
-
-&usb1_vbus_pin_a {
- pins = "PB10";
-};
-
&usb_otg {
dr_mode = "host";
status = "okay";
diff --git a/arch/arm/boot/dts/sun5i-a10s-auxtek-t004.dts b/arch/arm/boot/dts/sun5i-a10s-auxtek-t004.dts
index a27c3fa58736..16f839df4227 100644
--- a/arch/arm/boot/dts/sun5i-a10s-auxtek-t004.dts
+++ b/arch/arm/boot/dts/sun5i-a10s-auxtek-t004.dts
@@ -168,10 +168,6 @@
status = "okay";
};
-&usb1_vbus_pin_a {
- pins = "PG13";
-};
-
&usbphy {
pinctrl-names = "default";
pinctrl-0 = <&usb0_id_detect_pin>;
diff --git a/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts b/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
index 894f874a5beb..da95118af4dc 100644
--- a/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
@@ -63,6 +63,17 @@
stdout-path = "serial0:115200n8";
};
+ connector {
+ compatible = "hdmi-connector";
+ type = "a";
+
+ port {
+ hdmi_con_in: endpoint {
+ remote-endpoint = <&hdmi_out_con>;
+ };
+ };
+ };
+
leds {
compatible = "gpio-leds";
pinctrl-names = "default";
@@ -76,6 +87,10 @@
};
};
+&be0 {
+ status = "okay";
+};
+
&ehci0 {
status = "okay";
};
@@ -91,6 +106,16 @@
status = "okay";
};
+&hdmi {
+ status = "okay";
+};
+
+&hdmi_out {
+ hdmi_out_con: endpoint {
+ remote-endpoint = <&hdmi_con_in>;
+ };
+};
+
&i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins_a>;
@@ -248,6 +273,10 @@
status = "okay";
};
+&tcon0 {
+ status = "okay";
+};
+
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins_a>;
@@ -271,10 +300,6 @@
status = "okay";
};
-&usb0_vbus_pin_a {
- pins = "PG11";
-};
-
&usbphy {
pinctrl-names = "default";
pinctrl-0 = <&usb0_id_detect_pin>;
diff --git a/arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts b/arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts
index ea3e5655a61b..5482be174e12 100644
--- a/arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts
+++ b/arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts
@@ -216,10 +216,6 @@
status = "okay";
};
-&usb1_vbus_pin_a {
- pins = "PG12";
-};
-
&usbphy {
usb1_vbus-supply = <&reg_usb1_vbus>;
status = "okay";
diff --git a/arch/arm/boot/dts/sun5i-a10s.dtsi b/arch/arm/boot/dts/sun5i-a10s.dtsi
index 1e38ff80366c..18f25c5e75ae 100644
--- a/arch/arm/boot/dts/sun5i-a10s.dtsi
+++ b/arch/arm/boot/dts/sun5i-a10s.dtsi
@@ -71,7 +71,46 @@
};
};
+ display-engine {
+ compatible = "allwinner,sun5i-a10s-display-engine";
+ allwinner,pipelines = <&fe0>;
+ };
+
soc@01c00000 {
+ hdmi: hdmi@01c16000 {
+ compatible = "allwinner,sun5i-a10s-hdmi";
+ reg = <0x01c16000 0x1000>;
+ interrupts = <58>;
+ clocks = <&ccu CLK_AHB_HDMI>, <&ccu CLK_HDMI>,
+ <&ccu 9>,
+ <&ccu 16>;
+ clock-names = "ahb", "mod", "pll-0", "pll-1";
+ dmas = <&dma SUN4I_DMA_NORMAL 16>,
+ <&dma SUN4I_DMA_NORMAL 16>,
+ <&dma SUN4I_DMA_DEDICATED 24>;
+ dma-names = "ddc-tx", "ddc-rx", "audio-tx";
+ status = "disabled";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hdmi_in: port@0 {
+ reg = <0>;
+
+ hdmi_in_tcon0: endpoint {
+ remote-endpoint = <&tcon0_out_hdmi>;
+ };
+ };
+
+ hdmi_out: port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ };
+ };
+
pwm: pwm@01c20e00 {
compatible = "allwinner,sun5i-a10s-pwm";
reg = <0x01c20e00 0xc>;
@@ -128,3 +167,11 @@
&sram_a {
};
+
+&tcon0_out {
+ tcon0_out_hdmi: endpoint@2 {
+ reg = <2>;
+ remote-endpoint = <&hdmi_in_tcon0>;
+ allwinner,tcon-channel = <1>;
+ };
+};
diff --git a/arch/arm/boot/dts/sun5i-a13-empire-electronix-d709.dts b/arch/arm/boot/dts/sun5i-a13-empire-electronix-d709.dts
index 34411d27aadf..3dbb0d7c2f8c 100644
--- a/arch/arm/boot/dts/sun5i-a13-empire-electronix-d709.dts
+++ b/arch/arm/boot/dts/sun5i-a13-empire-electronix-d709.dts
@@ -207,10 +207,6 @@
status = "okay";
};
-&usb0_vbus_pin_a {
- pins = "PG12";
-};
-
&usbphy {
pinctrl-names = "default";
pinctrl-0 = <&usb0_id_detect_pin>, <&usb0_vbus_detect_pin>;
diff --git a/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts b/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
index 2489c16f7efa..584fa579ded2 100644
--- a/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
+++ b/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
@@ -186,7 +186,6 @@
};
&reg_usb0_vbus {
- pinctrl-0 = <&usb0_vbus_pin_a>;
gpio = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
status = "okay";
};
@@ -202,10 +201,6 @@
status = "okay";
};
-&usb0_vbus_pin_a {
- pins = "PG12";
-};
-
&usbphy {
pinctrl-names = "default";
pinctrl-0 = <&usb0_id_detect_pin>, <&usb0_vbus_detect_pin>;
diff --git a/arch/arm/boot/dts/sun5i-a13-olinuxino.dts b/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
index 95f591bb8ced..38072c7e10e2 100644
--- a/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
+++ b/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
@@ -269,10 +269,6 @@
status = "okay";
};
-&usb0_vbus_pin_a {
- pins = "PG12";
-};
-
&usbphy {
pinctrl-names = "default";
pinctrl-0 = <&usb0_id_detect_pin>, <&usb0_vbus_detect_pin>;
diff --git a/arch/arm/boot/dts/sun5i-r8-chip.dts b/arch/arm/boot/dts/sun5i-r8-chip.dts
index d0785602663b..879a4b0f3bd5 100644
--- a/arch/arm/boot/dts/sun5i-r8-chip.dts
+++ b/arch/arm/boot/dts/sun5i-r8-chip.dts
@@ -132,6 +132,10 @@
status = "okay";
};
+&battery_power_supply {
+ status = "okay";
+};
+
&i2c1 {
pinctrl-names = "default";
pinctrl-0 = <&i2c1_pins_a>;
diff --git a/arch/arm/boot/dts/sun5i.dtsi b/arch/arm/boot/dts/sun5i.dtsi
index 5175f9cc9bed..98cc00341b00 100644
--- a/arch/arm/boot/dts/sun5i.dtsi
+++ b/arch/arm/boot/dts/sun5i.dtsi
@@ -272,6 +272,7 @@
tcon0_out_tve0: endpoint@1 {
reg = <1>;
remote-endpoint = <&tve0_in_tcon0>;
+ allwinner,tcon-channel = <1>;
};
};
};
@@ -355,6 +356,15 @@
status = "disabled";
};
+ crypto: crypto-engine@01c15000 {
+ compatible = "allwinner,sun5i-a13-crypto",
+ "allwinner,sun4i-a10-crypto";
+ reg = <0x01c15000 0x1000>;
+ interrupts = <54>;
+ clocks = <&ccu CLK_AHB_SS>, <&ccu CLK_SS>;
+ clock-names = "ahb", "mod";
+ };
+
spi2: spi@01c17000 {
compatible = "allwinner,sun4i-a10-spi";
reg = <0x01c17000 0x1000>;
diff --git a/arch/arm/boot/dts/sun6i-a31-hummingbird.dts b/arch/arm/boot/dts/sun6i-a31-hummingbird.dts
index d4f74f476f25..9ecb5f0b3f83 100644
--- a/arch/arm/boot/dts/sun6i-a31-hummingbird.dts
+++ b/arch/arm/boot/dts/sun6i-a31-hummingbird.dts
@@ -253,6 +253,10 @@
#include "axp22x.dtsi"
+&ac_power_supply {
+ status = "okay";
+};
+
&reg_aldo1 {
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
@@ -319,7 +323,6 @@
&tcon0 {
pinctrl-names = "default";
pinctrl-0 = <&lcd0_rgb888_pins>;
- status = "okay";
};
&tcon0_out {
@@ -344,11 +347,6 @@
status = "okay";
};
-&usb1_vbus_pin_a {
- /* different pin from sunxi-common-regulators */
- pins = "PH24";
-};
-
&usbphy {
usb0_id_det-gpio = <&pio 0 15 GPIO_ACTIVE_HIGH>; /* PA15 */
usb0_vbus_det-gpio = <&pio 0 16 GPIO_ACTIVE_HIGH>; /* PA16 */
diff --git a/arch/arm/boot/dts/sun6i-a31.dtsi b/arch/arm/boot/dts/sun6i-a31.dtsi
index 9c999d3788f6..eef072a21acc 100644
--- a/arch/arm/boot/dts/sun6i-a31.dtsi
+++ b/arch/arm/boot/dts/sun6i-a31.dtsi
@@ -232,7 +232,7 @@
de: display-engine {
compatible = "allwinner,sun6i-a31-display-engine";
- allwinner,pipelines = <&fe0>;
+ allwinner,pipelines = <&fe0>, <&fe1>;
status = "disabled";
};
@@ -264,7 +264,6 @@
"tcon-ch0",
"tcon-ch1";
clock-output-names = "tcon0-pixel-clock";
- status = "disabled";
ports {
#address-cells = <1>;
@@ -289,6 +288,43 @@
};
};
+ tcon1: lcd-controller@01c0d000 {
+ compatible = "allwinner,sun6i-a31-tcon";
+ reg = <0x01c0d000 0x1000>;
+ interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
+ resets = <&ccu RST_AHB1_LCD1>;
+ reset-names = "lcd";
+ clocks = <&ccu CLK_AHB1_LCD1>,
+ <&ccu CLK_LCD1_CH0>,
+ <&ccu CLK_LCD1_CH1>;
+ clock-names = "ahb",
+ "tcon-ch0",
+ "tcon-ch1";
+ clock-output-names = "tcon1-pixel-clock";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ tcon1_in: port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ tcon1_in_drc1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&drc1_out_tcon1>;
+ };
+ };
+
+ tcon1_out: port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ };
+ };
+
mmc0: mmc@01c0f000 {
compatible = "allwinner,sun7i-a20-mmc";
reg = <0x01c0f000 0x1000>;
@@ -780,7 +816,8 @@
};
crypto: crypto-engine@01c15000 {
- compatible = "allwinner,sun4i-a10-crypto";
+ compatible = "allwinner,sun6i-a31-crypto",
+ "allwinner,sun4i-a10-crypto";
reg = <0x01c15000 0x1000>;
interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ccu CLK_AHB1_SS>, <&ccu CLK_SS>;
@@ -896,6 +933,130 @@
reg = <0>;
remote-endpoint = <&be0_in_fe0>;
};
+
+ fe0_out_be1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&be1_in_fe0>;
+ };
+ };
+ };
+ };
+
+ fe1: display-frontend@01e20000 {
+ compatible = "allwinner,sun6i-a31-display-frontend";
+ reg = <0x01e20000 0x20000>;
+ interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_AHB1_FE1>, <&ccu CLK_FE1>,
+ <&ccu CLK_DRAM_FE1>;
+ clock-names = "ahb", "mod",
+ "ram";
+ resets = <&ccu RST_AHB1_FE1>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ fe1_out: port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ fe1_out_be0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&be0_in_fe1>;
+ };
+
+ fe1_out_be1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&be1_in_fe1>;
+ };
+ };
+ };
+ };
+
+ be1: display-backend@01e40000 {
+ compatible = "allwinner,sun6i-a31-display-backend";
+ reg = <0x01e40000 0x10000>;
+ interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_AHB1_BE1>, <&ccu CLK_BE1>,
+ <&ccu CLK_DRAM_BE1>;
+ clock-names = "ahb", "mod",
+ "ram";
+ resets = <&ccu RST_AHB1_BE1>;
+
+ assigned-clocks = <&ccu CLK_BE1>;
+ assigned-clock-rates = <300000000>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ be1_in: port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ be1_in_fe0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&fe0_out_be1>;
+ };
+
+ be1_in_fe1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&fe1_out_be1>;
+ };
+ };
+
+ be1_out: port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ be1_out_drc1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&drc1_in_be1>;
+ };
+ };
+ };
+ };
+
+ drc1: drc@01e50000 {
+ compatible = "allwinner,sun6i-a31-drc";
+ reg = <0x01e50000 0x10000>;
+ interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_AHB1_DRC1>, <&ccu CLK_IEP_DRC1>,
+ <&ccu CLK_DRAM_DRC1>;
+ clock-names = "ahb", "mod",
+ "ram";
+ resets = <&ccu RST_AHB1_DRC1>;
+
+ assigned-clocks = <&ccu CLK_IEP_DRC1>;
+ assigned-clock-rates = <300000000>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ drc1_in: port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ drc1_in_be1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&be1_out_drc1>;
+ };
+ };
+
+ drc1_out: port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ drc1_out_tcon1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&tcon1_in_drc1>;
+ };
};
};
};
@@ -926,6 +1087,11 @@
reg = <0>;
remote-endpoint = <&fe0_out_be0>;
};
+
+ be0_in_fe1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&fe1_out_be0>;
+ };
};
be0_out: port@1 {
@@ -989,11 +1155,11 @@
<GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
};
- nmi_intc: interrupt-controller@01f00c0c {
- compatible = "allwinner,sun6i-a31-sc-nmi";
+ nmi_intc: interrupt-controller@1f00c00 {
+ compatible = "allwinner,sun6i-a31-r-intc";
interrupt-controller;
#interrupt-cells = <2>;
- reg = <0x01f00c0c 0x38>;
+ reg = <0x01f00c00 0x400>;
interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
};
diff --git a/arch/arm/boot/dts/sun6i-a31s-primo81.dts b/arch/arm/boot/dts/sun6i-a31s-primo81.dts
index f3712753fa42..4c10123509c4 100644
--- a/arch/arm/boot/dts/sun6i-a31s-primo81.dts
+++ b/arch/arm/boot/dts/sun6i-a31s-primo81.dts
@@ -158,11 +158,16 @@
reg = <0x68>;
interrupt-parent = <&nmi_intc>;
interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ x-powers,drive-vbus-en;
};
};
#include "axp22x.dtsi"
+&battery_power_supply {
+ status = "okay";
+};
+
&reg_aldo3 {
regulator-always-on;
regulator-min-microvolt = <2700000>;
@@ -226,6 +231,11 @@
regulator-name = "vddio-csi";
};
+&reg_drivevbus {
+ regulator-name = "usb0-vbus";
+ status = "okay";
+};
+
&reg_eldo3 {
regulator-min-microvolt = <1080000>;
regulator-max-microvolt = <1320000>;
@@ -238,12 +248,18 @@
};
&usb_otg {
- /* otg support requires support for AXP221 usb-power-supply and GPIO */
- dr_mode = "host";
+ dr_mode = "otg";
+ status = "okay";
+};
+
+&usb_power_supply {
status = "okay";
};
&usbphy {
+ usb0_id_det-gpio = <&pio 0 15 GPIO_ACTIVE_HIGH>; /* PA15 */
+ usb0_vbus_power-supply = <&usb_power_supply>;
+ usb0_vbus-supply = <&reg_drivevbus>;
usb1_vbus-supply = <&reg_dldo1>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts b/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
index bdfdce8ca6ba..51e6f1d21c32 100644
--- a/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
+++ b/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
@@ -138,7 +138,7 @@
non-removable;
status = "okay";
- brcmf: bcrmf@1 {
+ brcmf: wifi@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
interrupt-parent = <&r_pio>;
diff --git a/arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts b/arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts
index 08e776ae095a..eb55e74232c9 100644
--- a/arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts
+++ b/arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts
@@ -144,6 +144,10 @@
#include "axp209.dtsi"
+&ac_power_supply {
+ status = "okay";
+};
+
&ir0 {
pinctrl-names = "default";
pinctrl-0 = <&ir0_rx_pins_a>;
@@ -172,7 +176,7 @@
wakeup-source;
status = "okay";
- brcmf: bcrmf@1 {
+ brcmf: wifi@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
interrupt-parent = <&pio>;
diff --git a/arch/arm/boot/dts/sun7i-a20-bananapi.dts b/arch/arm/boot/dts/sun7i-a20-bananapi.dts
index ed2f35adf542..88a1c2363c6c 100644
--- a/arch/arm/boot/dts/sun7i-a20-bananapi.dts
+++ b/arch/arm/boot/dts/sun7i-a20-bananapi.dts
@@ -177,6 +177,57 @@
};
&pio {
+ gpio-line-names =
+ /* PA */
+ "ERXD3", "ERXD2", "ERXD1", "ERXD0", "ETXD3",
+ "ETXD2", "ETXD1", "ETXD0",
+ "ERXCK", "ERXERR", "ERXDV", "EMDC", "EMDIO",
+ "ETXEN", "ETXCK", "ECRS",
+ "ECOL", "ETXERR", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ /* PB */
+ "PMU-SCK", "PMU-SDA", "", "", "", "", "", "",
+ "", "USB0-DRV", "", "", "", "", "", "",
+ "", "", "", "", "SCL", "SDA", "", "",
+ "", "", "", "", "", "", "", "",
+ /* PC */
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ /* PD */
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ /* PE */
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ /* PF */
+ "SD0-D1", "SD0-D0", "SD0-CLK", "SD0-CMD", "SD0-D3",
+ "SD0-D2", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ /* PG */
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ /* PH */
+ "TXD0", "RXD0", "IO-1", "PH3", "USB0-IDDET", "PH5", "", "",
+ "", "", "SD0-DET", "", "", "", "", "",
+ "", "", "", "", "IO-4", "IO-5", "", "EMAC-PWR-EN",
+ "LED1", "", "", "", "", "", "", "",
+ /* PI */
+ "", "", "", "IO-GCLK", "", "", "", "",
+ "", "", "SPI-CE0", "SPI-CLK", "SPI-MOSI",
+ "SPI-MISO", "SPI-CE1", "",
+ "IO-6", "IO-3", "IO-2", "IO-0", "", "", "", "",
+ "", "", "", "", "", "", "", "";
+
usb0_id_detect_pin: usb0_id_detect_pin@0 {
pins = "PH4";
function = "gpio_in";
diff --git a/arch/arm/boot/dts/sun7i-a20-bananapro.dts b/arch/arm/boot/dts/sun7i-a20-bananapro.dts
index 83516bc81225..e7af1b7c33d5 100644
--- a/arch/arm/boot/dts/sun7i-a20-bananapro.dts
+++ b/arch/arm/boot/dts/sun7i-a20-bananapro.dts
@@ -172,7 +172,7 @@
non-removable;
status = "okay";
- brcmf: bcrmf@1 {
+ brcmf: wifi@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
interrupt-parent = <&pio>;
diff --git a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
index a2eab7aa80e0..2a50207618cb 100644
--- a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
@@ -137,7 +137,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
@@ -174,13 +174,12 @@
status = "okay";
};
-&usb_otg {
- dr_mode = "otg";
+#include "axp209.dtsi"
+
+&ac_power_supply {
status = "okay";
};
-#include "axp209.dtsi"
-
&reg_dcdc2 {
regulator-always-on;
regulator-min-microvolt = <1000000>;
@@ -220,6 +219,11 @@
status = "okay";
};
+&usb_otg {
+ dr_mode = "otg";
+ status = "okay";
+};
+
&usbphy {
pinctrl-names = "default";
pinctrl-0 = <&usb0_id_detect_pin>;
diff --git a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
index 102903e83bd2..852a0aa24dce 100644
--- a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
@@ -178,7 +178,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
@@ -195,7 +195,7 @@
non-removable;
status = "okay";
- brcmf: bcrmf@1 {
+ brcmf: wifi@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
interrupt-parent = <&pio>;
@@ -271,6 +271,10 @@
status = "okay";
};
+&battery_power_supply {
+ status = "okay";
+};
+
&reg_dcdc2 {
regulator-always-on;
regulator-min-microvolt = <1000000>;
@@ -336,6 +340,7 @@
pinctrl-0 = <&usb0_id_detect_pin>, <&usb0_vbus_detect_pin>;
usb0_id_det-gpios = <&pio 7 19 GPIO_ACTIVE_HIGH>; /* PH19 */
usb0_vbus_det-gpios = <&pio 7 22 GPIO_ACTIVE_HIGH>; /* PH22 */
+ usb0_vbus_power-supply = <&usb_power_supply>;
usb0_vbus-supply = <&reg_usb0_vbus>;
usb1_vbus-supply = <&reg_usb1_vbus>;
usb2_vbus-supply = <&reg_usb2_vbus>;
diff --git a/arch/arm/boot/dts/sun7i-a20-hummingbird.dts b/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
index 99c00b9a1546..6e6264cd69f8 100644
--- a/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
+++ b/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
@@ -160,7 +160,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v0>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts b/arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts
index 4da49717da21..55809973a568 100644
--- a/arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts
+++ b/arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts
@@ -157,7 +157,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
@@ -173,7 +173,7 @@
non-removable;
status = "okay";
- brcmf: bcrmf@1 {
+ brcmf: wifi@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
interrupt-parent = <&pio>;
diff --git a/arch/arm/boot/dts/sun7i-a20-icnova-swac.dts b/arch/arm/boot/dts/sun7i-a20-icnova-swac.dts
index 28d3abbdc2d4..794e7617f545 100644
--- a/arch/arm/boot/dts/sun7i-a20-icnova-swac.dts
+++ b/arch/arm/boot/dts/sun7i-a20-icnova-swac.dts
@@ -104,7 +104,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 8 5 GPIO_ACTIVE_HIGH>; /* PI5 */
diff --git a/arch/arm/boot/dts/sun7i-a20-itead-ibox.dts b/arch/arm/boot/dts/sun7i-a20-itead-ibox.dts
index d52222c82cb8..8a8a6dbcd414 100644
--- a/arch/arm/boot/dts/sun7i-a20-itead-ibox.dts
+++ b/arch/arm/boot/dts/sun7i-a20-itead-ibox.dts
@@ -121,7 +121,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts b/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts
index 96bb0bc198ba..004b6ddac813 100644
--- a/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts
+++ b/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts
@@ -85,10 +85,6 @@
};
};
-&ahci_pwr_pin_a {
- pins = "PB3";
-};
-
&ahci {
target-supply = <&reg_ahci_5v>;
status = "okay";
@@ -319,10 +315,6 @@
status = "okay";
};
-&usb2_vbus_pin_a {
- pins = "PH12";
-};
-
&usbphy {
pinctrl-names = "default";
pinctrl-0 = <&usb0_id_detect_pin>;
diff --git a/arch/arm/boot/dts/sun7i-a20-m3.dts b/arch/arm/boot/dts/sun7i-a20-m3.dts
index 86f69813683e..43c94787ef07 100644
--- a/arch/arm/boot/dts/sun7i-a20-m3.dts
+++ b/arch/arm/boot/dts/sun7i-a20-m3.dts
@@ -117,7 +117,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-mk808c.dts b/arch/arm/boot/dts/sun7i-a20-mk808c.dts
index c4ee30709f3a..f7413094183c 100644
--- a/arch/arm/boot/dts/sun7i-a20-mk808c.dts
+++ b/arch/arm/boot/dts/sun7i-a20-mk808c.dts
@@ -109,7 +109,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v0>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts b/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
index 1af5b46862cb..64c8ef9a2756 100644
--- a/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
@@ -187,7 +187,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts
index dcd0f7a0dffa..2ce1a9f13a17 100644
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts
@@ -130,7 +130,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
index e7d45425758c..097bd755764c 100644
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
@@ -131,7 +131,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
index def0ad8395bb..0b7403e4d687 100644
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
@@ -198,7 +198,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts b/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts
index f47a5c46bc20..39bc73db72e5 100644
--- a/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts
+++ b/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts
@@ -130,7 +130,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-pcduino3.dts b/arch/arm/boot/dts/sun7i-a20-pcduino3.dts
index 7c96b53b76bf..777152a3df0f 100644
--- a/arch/arm/boot/dts/sun7i-a20-pcduino3.dts
+++ b/arch/arm/boot/dts/sun7i-a20-pcduino3.dts
@@ -106,10 +106,6 @@
status = "okay";
};
-&ahci_pwr_pin_a {
- pins = "PH2";
-};
-
&codec {
status = "okay";
};
@@ -160,7 +156,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts b/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts
index e19f17177755..f8d0aafb9f88 100644
--- a/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts
+++ b/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts
@@ -151,7 +151,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-wits-pro-a20-dkt.dts b/arch/arm/boot/dts/sun7i-a20-wits-pro-a20-dkt.dts
index c3078d4f1093..7f8405a0dd0f 100644
--- a/arch/arm/boot/dts/sun7i-a20-wits-pro-a20-dkt.dts
+++ b/arch/arm/boot/dts/sun7i-a20-wits-pro-a20-dkt.dts
@@ -120,7 +120,7 @@
&mmc0 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+ pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
bus-width = <4>;
cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
@@ -137,7 +137,7 @@
non-removable;
status = "okay";
- brcmf: bcrmf@1 {
+ brcmf: wifi@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
interrupt-parent = <&pio>;
diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 93aa55970bd7..96bee776e145 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -1019,7 +1019,8 @@
};
crypto: crypto-engine@01c15000 {
- compatible = "allwinner,sun4i-a10-crypto";
+ compatible = "allwinner,sun7i-a20-crypto",
+ "allwinner,sun4i-a10-crypto";
reg = <0x01c15000 0x1000>;
interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ahb_gates 5>, <&ss_clk>;
@@ -1190,12 +1191,6 @@
bias-pull-up;
};
- mmc0_cd_pin_reference_design: mmc0_cd_pin@0 {
- pins = "PH1";
- function = "gpio_in";
- bias-pull-up;
- };
-
mmc2_pins_a: mmc2@0 {
pins = "PC6", "PC7", "PC8",
"PC9", "PC10", "PC11";
diff --git a/arch/arm/boot/dts/sun8i-a23-a33.dtsi b/arch/arm/boot/dts/sun8i-a23-a33.dtsi
index a8b978d0f35b..ea50dda75adc 100644
--- a/arch/arm/boot/dts/sun8i-a23-a33.dtsi
+++ b/arch/arm/boot/dts/sun8i-a23-a33.dtsi
@@ -519,11 +519,11 @@
#clock-cells = <1>;
};
- nmi_intc: interrupt-controller@01f00c0c {
- compatible = "allwinner,sun6i-a31-sc-nmi";
+ nmi_intc: interrupt-controller@1f00c00 {
+ compatible = "allwinner,sun6i-a31-r-intc";
interrupt-controller;
#interrupt-cells = <2>;
- reg = <0x01f00c0c 0x38>;
+ reg = <0x01f00c00 0x400>;
interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
};
diff --git a/arch/arm/boot/dts/sun8i-a33-sinlinx-sina33.dts b/arch/arm/boot/dts/sun8i-a33-sinlinx-sina33.dts
index 9b620cc1d5f1..433cf2a2a9a2 100644
--- a/arch/arm/boot/dts/sun8i-a33-sinlinx-sina33.dts
+++ b/arch/arm/boot/dts/sun8i-a33-sinlinx-sina33.dts
@@ -88,13 +88,13 @@
};
&cpu0_opp_table {
- opp@1104000000 {
+ opp-1104000000 {
opp-hz = /bits/ 64 <1104000000>;
opp-microvolt = <1320000>;
clock-latency-ns = <244144>; /* 8 32k periods */
};
- opp@1200000000 {
+ opp-1200000000 {
opp-hz = /bits/ 64 <1200000000>;
opp-microvolt = <1320000>;
clock-latency-ns = <244144>; /* 8 32k periods */
@@ -196,6 +196,10 @@
status = "okay";
};
+&battery_power_supply {
+ status = "okay";
+};
+
&reg_aldo1 {
regulator-always-on;
regulator-min-microvolt = <3000000>;
diff --git a/arch/arm/boot/dts/sun8i-a33.dtsi b/arch/arm/boot/dts/sun8i-a33.dtsi
index 013978259372..22660919bd08 100644
--- a/arch/arm/boot/dts/sun8i-a33.dtsi
+++ b/arch/arm/boot/dts/sun8i-a33.dtsi
@@ -50,73 +50,73 @@
compatible = "operating-points-v2";
opp-shared;
- opp@120000000 {
+ opp-120000000 {
opp-hz = /bits/ 64 <120000000>;
opp-microvolt = <1040000>;
clock-latency-ns = <244144>; /* 8 32k periods */
};
- opp@240000000 {
+ opp-240000000 {
opp-hz = /bits/ 64 <240000000>;
opp-microvolt = <1040000>;
clock-latency-ns = <244144>; /* 8 32k periods */
};
- opp@312000000 {
+ opp-312000000 {
opp-hz = /bits/ 64 <312000000>;
opp-microvolt = <1040000>;
clock-latency-ns = <244144>; /* 8 32k periods */
};
- opp@408000000 {
+ opp-408000000 {
opp-hz = /bits/ 64 <408000000>;
opp-microvolt = <1040000>;
clock-latency-ns = <244144>; /* 8 32k periods */
};
- opp@480000000 {
+ opp-480000000 {
opp-hz = /bits/ 64 <480000000>;
opp-microvolt = <1040000>;
clock-latency-ns = <244144>; /* 8 32k periods */
};
- opp@504000000 {
+ opp-504000000 {
opp-hz = /bits/ 64 <504000000>;
opp-microvolt = <1040000>;
clock-latency-ns = <244144>; /* 8 32k periods */
};
- opp@600000000 {
+ opp-600000000 {
opp-hz = /bits/ 64 <600000000>;
opp-microvolt = <1040000>;
clock-latency-ns = <244144>; /* 8 32k periods */
};
- opp@648000000 {
+ opp-648000000 {
opp-hz = /bits/ 64 <648000000>;
opp-microvolt = <1040000>;
clock-latency-ns = <244144>; /* 8 32k periods */
};
- opp@720000000 {
+ opp-720000000 {
opp-hz = /bits/ 64 <720000000>;
opp-microvolt = <1100000>;
clock-latency-ns = <244144>; /* 8 32k periods */
};
- opp@816000000 {
+ opp-816000000 {
opp-hz = /bits/ 64 <816000000>;
opp-microvolt = <1100000>;
clock-latency-ns = <244144>; /* 8 32k periods */
};
- opp@912000000 {
+ opp-912000000 {
opp-hz = /bits/ 64 <912000000>;
opp-microvolt = <1200000>;
clock-latency-ns = <244144>; /* 8 32k periods */
};
- opp@1008000000 {
+ opp-1008000000 {
opp-hz = /bits/ 64 <1008000000>;
opp-microvolt = <1200000>;
clock-latency-ns = <244144>; /* 8 32k periods */
@@ -164,15 +164,15 @@
mali_opp_table: gpu-opp-table {
compatible = "operating-points-v2";
- opp@144000000 {
+ opp-144000000 {
opp-hz = /bits/ 64 <144000000>;
};
- opp@240000000 {
+ opp-240000000 {
opp-hz = /bits/ 64 <240000000>;
};
- opp@384000000 {
+ opp-384000000 {
opp-hz = /bits/ 64 <384000000>;
};
};
diff --git a/arch/arm/boot/dts/sun8i-a83t-allwinner-h8homlet-v2.dts b/arch/arm/boot/dts/sun8i-a83t-allwinner-h8homlet-v2.dts
index 342e1d33fa1c..1f0d60afb25b 100644
--- a/arch/arm/boot/dts/sun8i-a83t-allwinner-h8homlet-v2.dts
+++ b/arch/arm/boot/dts/sun8i-a83t-allwinner-h8homlet-v2.dts
@@ -43,6 +43,7 @@
/dts-v1/;
#include "sun8i-a83t.dtsi"
+#include "sunxi-common-regulators.dtsi"
/ {
model = "Allwinner A83T H8Homlet Proto Dev Board v2.0";
@@ -57,8 +58,92 @@
};
};
+&ehci0 {
+ status = "okay";
+};
+
+&mmc0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_pins>;
+ vmmc-supply = <&reg_vcc3v0>;
+ cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>; /* PF6 */
+ bus-width = <4>;
+ cd-inverted;
+ status = "okay";
+};
+
+&mmc2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc2_8bit_emmc_pins>;
+ vmmc-supply = <&reg_vcc3v0>;
+ bus-width = <8>;
+ non-removable;
+ cap-mmc-hw-reset;
+ status = "okay";
+};
+
+&ohci0 {
+ status = "okay";
+};
+
+&reg_usb0_vbus {
+ gpio = <&r_pio 0 5 GPIO_ACTIVE_HIGH>; /* PL5 */
+ status = "okay";
+};
+
+&reg_usb1_vbus {
+ gpio = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
+ status = "okay";
+};
+
+&r_rsb {
+ status = "okay";
+
+ axp81x: pmic@3a3 {
+ compatible = "x-powers,axp818", "x-powers,axp813";
+ reg = <0x3a3>;
+ interrupt-parent = <&r_intc>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ };
+
+ ac100: codec@e89 {
+ compatible = "x-powers,ac100";
+ reg = <0xe89>;
+
+ ac100_codec: codec {
+ compatible = "x-powers,ac100-codec";
+ interrupt-parent = <&r_pio>;
+ interrupts = <0 11 IRQ_TYPE_LEVEL_LOW>; /* PL11 */
+ #clock-cells = <0>;
+ clock-output-names = "4M_adda";
+ };
+
+ ac100_rtc: rtc {
+ compatible = "x-powers,ac100-rtc";
+ interrupt-parent = <&r_intc>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&ac100_codec>;
+ #clock-cells = <1>;
+ clock-output-names = "cko1_rtc",
+ "cko2_rtc",
+ "cko3_rtc";
+ };
+ };
+};
+
&uart0 {
pinctrl-names = "default";
- pinctrl-0 = <&uart0_pins_b>;
+ pinctrl-0 = <&uart0_pb_pins>;
+ status = "okay";
+};
+
+&usbphy {
+ usb0_vbus-supply = <&reg_usb0_vbus>;
+ usb1_vbus-supply = <&reg_usb1_vbus>;
+ status = "okay";
+};
+
+&usb_otg {
+ dr_mode = "host";
status = "okay";
};
diff --git a/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts b/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
new file mode 100644
index 000000000000..2bafd7e99ef7
--- /dev/null
+++ b/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
@@ -0,0 +1,148 @@
+/*
+ * Copyright 2017 Chen-Yu Tsai
+ *
+ * Chen-Yu Tsai <wens@csie.org>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include "sun8i-a83t.dtsi"
+#include "sunxi-common-regulators.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ model = "Banana Pi BPI-M3";
+ compatible = "sinovoip,bpi-m3", "allwinner,sun8i-a83t";
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+};
+
+&ehci0 {
+ /* Terminus Tech FE 1.1s 4-port USB 2.0 hub here */
+ status = "okay";
+
+ /* TODO GL830 USB-to-SATA bridge downstream w/ GPIO power controls */
+};
+
+&mmc0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_pins>;
+ vmmc-supply = <&reg_vcc3v3>;
+ bus-width = <4>;
+ cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>; /* PF6 */
+ cd-inverted;
+ status = "okay";
+};
+
+&mmc2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc2_8bit_emmc_pins>;
+ vmmc-supply = <&reg_vcc3v3>;
+ bus-width = <8>;
+ non-removable;
+ cap-mmc-hw-reset;
+ status = "okay";
+};
+
+&r_rsb {
+ status = "okay";
+
+ axp81x: pmic@3a3 {
+ compatible = "x-powers,axp813";
+ reg = <0x3a3>;
+ interrupt-parent = <&r_intc>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ };
+
+ ac100: codec@e89 {
+ compatible = "x-powers,ac100";
+ reg = <0xe89>;
+
+ ac100_codec: codec {
+ compatible = "x-powers,ac100-codec";
+ interrupt-parent = <&r_pio>;
+ interrupts = <0 11 IRQ_TYPE_LEVEL_LOW>; /* PL11 */
+ #clock-cells = <0>;
+ clock-output-names = "4M_adda";
+ };
+
+ ac100_rtc: rtc {
+ compatible = "x-powers,ac100-rtc";
+ interrupt-parent = <&r_intc>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&ac100_codec>;
+ #clock-cells = <1>;
+ clock-output-names = "cko1_rtc",
+ "cko2_rtc",
+ "cko3_rtc";
+ };
+ };
+};
+
+&reg_usb1_vbus {
+ gpio = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* PD24 */
+ status = "okay";
+};
+
+&reg_vcc3v0 {
+ status = "disabled";
+};
+
+&reg_vcc5v0 {
+ status = "disabled";
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pb_pins>;
+ status = "okay";
+};
+
+&usbphy {
+ usb1_vbus-supply = <&reg_usb1_vbus>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts b/arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts
index 88b1e0970b8d..716a205c6dbb 100644
--- a/arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts
+++ b/arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts
@@ -44,6 +44,9 @@
/dts-v1/;
#include "sun8i-a83t.dtsi"
+#include "sunxi-common-regulators.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
/ {
model = "Cubietech Cubietruck Plus";
@@ -56,10 +59,156 @@
chosen {
stdout-path = "serial0:115200n8";
};
+
+ leds {
+ compatible = "gpio-leds";
+
+ blue {
+ label = "cubietruck-plus:blue:usr";
+ gpios = <&pio 3 25 GPIO_ACTIVE_HIGH>; /* PD25 */
+ };
+
+ orange {
+ label = "cubietruck-plus:orange:usr";
+ gpios = <&pio 3 26 GPIO_ACTIVE_HIGH>; /* PD26 */
+ };
+
+ white {
+ label = "cubietruck-plus:white:usr";
+ gpios = <&pio 3 27 GPIO_ACTIVE_HIGH>; /* PD27 */
+ };
+
+ green {
+ label = "cubietruck-plus:green:usr";
+ gpios = <&pio 4 4 GPIO_ACTIVE_HIGH>; /* PE4 */
+ };
+ };
+
+ usb-hub {
+ /* I2C is not connected */
+ compatible = "smsc,usb3503";
+ initial-mode = <1>; /* initialize in HUB mode */
+ disabled-ports = <1>;
+ intn-gpios = <&pio 7 5 GPIO_ACTIVE_HIGH>; /* PH5 */
+ reset-gpios = <&pio 4 16 GPIO_ACTIVE_HIGH>; /* PE16 */
+ connect-gpios = <&pio 4 17 GPIO_ACTIVE_HIGH>; /* PE17 */
+ refclk-frequency = <19200000>;
+ };
+
+ sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "On-board SPDIF";
+
+ simple-audio-card,cpu {
+ sound-dai = <&spdif>;
+ };
+
+ simple-audio-card,codec {
+ sound-dai = <&spdif_out>;
+ };
+ };
+
+ spdif_out: spdif-out {
+ #sound-dai-cells = <0>;
+ compatible = "linux,spdif-dit";
+ };
+};
+
+&ehci0 {
+ /* GL830 USB-to-SATA bridge here */
+ status = "okay";
+};
+
+&ehci1 {
+ /* USB3503 HSIC USB 2.0 hub here */
+ status = "okay";
+};
+
+&mmc0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_pins>;
+ vmmc-supply = <&reg_vcc3v3>;
+ bus-width = <4>;
+ cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>; /* PF6 */
+ cd-inverted;
+ status = "okay";
+};
+
+&mmc2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc2_8bit_emmc_pins>;
+ vmmc-supply = <&reg_vcc3v3>;
+ bus-width = <8>;
+ non-removable;
+ cap-mmc-hw-reset;
+ status = "okay";
+};
+
+&r_rsb {
+ status = "okay";
+
+ axp81x: pmic@3a3 {
+ compatible = "x-powers,axp818", "x-powers,axp813";
+ reg = <0x3a3>;
+ interrupt-parent = <&r_intc>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ };
+
+ ac100: codec@e89 {
+ compatible = "x-powers,ac100";
+ reg = <0xe89>;
+
+ ac100_codec: codec {
+ compatible = "x-powers,ac100-codec";
+ interrupt-parent = <&r_pio>;
+ interrupts = <0 11 IRQ_TYPE_LEVEL_LOW>; /* PL11 */
+ #clock-cells = <0>;
+ clock-output-names = "4M_adda";
+ };
+
+ ac100_rtc: rtc {
+ compatible = "x-powers,ac100-rtc";
+ interrupt-parent = <&r_intc>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&ac100_codec>;
+ #clock-cells = <1>;
+ clock-output-names = "cko1_rtc",
+ "cko2_rtc",
+ "cko3_rtc";
+ };
+ };
+};
+
+&reg_usb1_vbus {
+ gpio = <&pio 3 29 GPIO_ACTIVE_HIGH>; /* PD29 */
+ status = "okay";
+};
+
+&reg_usb2_vbus {
+ gpio = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
+ status = "okay";
+};
+
+&reg_vcc3v0 {
+ status = "disabled";
+};
+
+&reg_vcc5v0 {
+ status = "disabled";
+};
+
+&spdif {
+ status = "okay";
};
&uart0 {
pinctrl-names = "default";
- pinctrl-0 = <&uart0_pins_b>;
+ pinctrl-0 = <&uart0_pb_pins>;
+ status = "okay";
+};
+
+&usbphy {
+ usb1_vbus-supply = <&reg_usb1_vbus>;
+ usb2_vbus-supply = <&reg_usb2_vbus>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/sun8i-a83t.dtsi b/arch/arm/boot/dts/sun8i-a83t.dtsi
index 0ec143773ee9..f996bd343e50 100644
--- a/arch/arm/boot/dts/sun8i-a83t.dtsi
+++ b/arch/arm/boot/dts/sun8i-a83t.dtsi
@@ -40,15 +40,25 @@
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
-
*/
-#include "skeleton.dtsi"
-
#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/sun8i-a83t-ccu.h>
+#include <dt-bindings/clock/sun8i-r-ccu.h>
+#include <dt-bindings/reset/sun8i-a83t-ccu.h>
+#include <dt-bindings/reset/sun8i-r-ccu.h>
+
/ {
interrupt-parent = <&gic>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ aliases {
+ };
+
+ chosen {
+ };
cpus {
#address-cells = <1>;
@@ -121,6 +131,7 @@
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <24000000>;
+ clock-accuracy = <50000>;
clock-output-names = "osc24M";
};
@@ -146,25 +157,190 @@
};
};
+ memory {
+ reg = <0x40000000 0x80000000>;
+ device_type = "memory";
+ };
+
soc {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
ranges;
- pio: pinctrl@01c20800 {
+ syscon: syscon@1c00000 {
+ compatible = "allwinner,sun8i-a83t-system-controller",
+ "syscon";
+ reg = <0x01c00000 0x1000>;
+ };
+
+ dma: dma-controller@1c02000 {
+ compatible = "allwinner,sun8i-a83t-dma";
+ reg = <0x01c02000 0x1000>;
+ interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_DMA>;
+ resets = <&ccu RST_BUS_DMA>;
+ #dma-cells = <1>;
+ };
+
+ mmc0: mmc@1c0f000 {
+ compatible = "allwinner,sun8i-a83t-mmc",
+ "allwinner,sun7i-a20-mmc";
+ reg = <0x01c0f000 0x1000>;
+ clocks = <&ccu CLK_BUS_MMC0>,
+ <&ccu CLK_MMC0>,
+ <&ccu CLK_MMC0_OUTPUT>,
+ <&ccu CLK_MMC0_SAMPLE>;
+ clock-names = "ahb",
+ "mmc",
+ "output",
+ "sample";
+ resets = <&ccu RST_BUS_MMC0>;
+ reset-names = "ahb";
+ interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ mmc1: mmc@1c10000 {
+ compatible = "allwinner,sun8i-a83t-mmc",
+ "allwinner,sun7i-a20-mmc";
+ reg = <0x01c10000 0x1000>;
+ clocks = <&ccu CLK_BUS_MMC1>,
+ <&ccu CLK_MMC1>,
+ <&ccu CLK_MMC1_OUTPUT>,
+ <&ccu CLK_MMC1_SAMPLE>;
+ clock-names = "ahb",
+ "mmc",
+ "output",
+ "sample";
+ resets = <&ccu RST_BUS_MMC1>;
+ reset-names = "ahb";
+ interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ mmc2: mmc@1c11000 {
+ compatible = "allwinner,sun8i-a83t-emmc";
+ reg = <0x01c11000 0x1000>;
+ clocks = <&ccu CLK_BUS_MMC2>,
+ <&ccu CLK_MMC2>,
+ <&ccu CLK_MMC2_OUTPUT>,
+ <&ccu CLK_MMC2_SAMPLE>;
+ clock-names = "ahb",
+ "mmc",
+ "output",
+ "sample";
+ resets = <&ccu RST_BUS_MMC2>;
+ reset-names = "ahb";
+ interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ usb_otg: usb@01c19000 {
+ compatible = "allwinner,sun8i-a83t-musb",
+ "allwinner,sun8i-a33-musb";
+ reg = <0x01c19000 0x0400>;
+ clocks = <&ccu CLK_BUS_OTG>;
+ resets = <&ccu RST_BUS_OTG>;
+ interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "mc";
+ phys = <&usbphy 0>;
+ phy-names = "usb";
+ extcon = <&usbphy 0>;
+ status = "disabled";
+ };
+
+ usbphy: phy@1c19400 {
+ compatible = "allwinner,sun8i-a83t-usb-phy";
+ reg = <0x01c19400 0x10>,
+ <0x01c1a800 0x14>,
+ <0x01c1b800 0x14>;
+ reg-names = "phy_ctrl",
+ "pmu1",
+ "pmu2";
+ clocks = <&ccu CLK_USB_PHY0>,
+ <&ccu CLK_USB_PHY1>,
+ <&ccu CLK_USB_HSIC>,
+ <&ccu CLK_USB_HSIC_12M>;
+ clock-names = "usb0_phy",
+ "usb1_phy",
+ "usb2_phy",
+ "usb2_hsic_12M";
+ resets = <&ccu RST_USB_PHY0>,
+ <&ccu RST_USB_PHY1>,
+ <&ccu RST_USB_HSIC>;
+ reset-names = "usb0_reset",
+ "usb1_reset",
+ "usb2_reset";
+ status = "disabled";
+ #phy-cells = <1>;
+ };
+
+ ehci0: usb@1c1a000 {
+ compatible = "allwinner,sun8i-a83t-ehci",
+ "generic-ehci";
+ reg = <0x01c1a000 0x100>;
+ interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_EHCI0>;
+ resets = <&ccu RST_BUS_EHCI0>;
+ phys = <&usbphy 1>;
+ phy-names = "usb";
+ status = "disabled";
+ };
+
+ ohci0: usb@1c1a400 {
+ compatible = "allwinner,sun8i-a83t-ohci",
+ "generic-ohci";
+ reg = <0x01c1a400 0x100>;
+ interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_OHCI0>, <&ccu CLK_USB_OHCI0>;
+ resets = <&ccu RST_BUS_OHCI0>;
+ phys = <&usbphy 1>;
+ phy-names = "usb";
+ status = "disabled";
+ };
+
+ ehci1: usb@1c1b000 {
+ compatible = "allwinner,sun8i-a83t-ehci",
+ "generic-ehci";
+ reg = <0x01c1b000 0x100>;
+ interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_EHCI1>;
+ resets = <&ccu RST_BUS_EHCI1>;
+ phys = <&usbphy 2>;
+ phy-names = "usb";
+ status = "disabled";
+ };
+
+ ccu: clock@1c20000 {
+ compatible = "allwinner,sun8i-a83t-ccu";
+ reg = <0x01c20000 0x400>;
+ clocks = <&osc24M>, <&osc16Md512>;
+ clock-names = "hosc", "losc";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+ pio: pinctrl@1c20800 {
compatible = "allwinner,sun8i-a83t-pinctrl";
interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
reg = <0x01c20800 0x400>;
- clocks = <&osc24M>;
+ clocks = <&ccu CLK_BUS_PIO>, <&osc24M>, <&osc16Md512>;
+ clock-names = "apb", "hosc", "losc";
gpio-controller;
interrupt-controller;
#interrupt-cells = <3>;
#gpio-cells = <3>;
- mmc0_pins_a: mmc0@0 {
+ mmc0_pins: mmc0-pins {
pins = "PF0", "PF1", "PF2",
"PF3", "PF4", "PF5";
function = "mmc0";
@@ -172,18 +348,32 @@
bias-pull-up;
};
- uart0_pins_a: uart0@0 {
- pins = "PF2", "PF4";
- function = "uart0";
+ mmc2_8bit_emmc_pins: mmc2-8bit-emmc-pins {
+ pins = "PC5", "PC6", "PC8", "PC9",
+ "PC10", "PC11", "PC12", "PC13",
+ "PC14", "PC15", "PC16";
+ function = "mmc2";
+ drive-strength = <30>;
+ bias-pull-up;
+ };
+
+ spdif_tx_pin: spdif-tx-pin {
+ pins = "PE18";
+ function = "spdif";
};
- uart0_pins_b: uart0@1 {
+ uart0_pb_pins: uart0-pb-pins {
pins = "PB9", "PB10";
function = "uart0";
};
+
+ uart0_pf_pins: uart0-pf-pins {
+ pins = "PF2", "PF4";
+ function = "uart0";
+ };
};
- timer@01c20c00 {
+ timer@1c20c00 {
compatible = "allwinner,sun4i-a10-timer";
reg = <0x01c20c00 0xa0>;
interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>,
@@ -191,24 +381,41 @@
clocks = <&osc24M>;
};
- watchdog@01c20ca0 {
+ watchdog@1c20ca0 {
compatible = "allwinner,sun6i-a31-wdt";
reg = <0x01c20ca0 0x20>;
interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&osc24M>;
};
+ spdif: spdif@1c21000 {
+ #sound-dai-cells = <0>;
+ compatible = "allwinner,sun8i-a83t-spdif",
+ "allwinner,sun8i-h3-spdif";
+ reg = <0x01c21000 0x400>;
+ interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_SPDIF>, <&ccu CLK_SPDIF>;
+ resets = <&ccu RST_BUS_SPDIF>;
+ clock-names = "apb", "spdif";
+ dmas = <&dma 2>;
+ dma-names = "tx";
+ pinctrl-names = "default";
+ pinctrl-0 = <&spdif_tx_pin>;
+ status = "disabled";
+ };
+
uart0: serial@01c28000 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28000 0x400>;
interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
- clocks = <&osc24M>;
+ clocks = <&ccu CLK_BUS_UART0>;
+ resets = <&ccu RST_BUS_UART0>;
status = "disabled";
};
- gic: interrupt-controller@01c81000 {
+ gic: interrupt-controller@1c81000 {
compatible = "arm,cortex-a7-gic", "arm,cortex-a15-gic";
reg = <0x01c81000 0x1000>,
<0x01c82000 0x2000>,
@@ -218,5 +425,59 @@
#interrupt-cells = <3>;
interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_HIGH)>;
};
+
+ r_intc: interrupt-controller@1f00c00 {
+ compatible = "allwinner,sun8i-a83t-r-intc",
+ "allwinner,sun6i-a31-r-intc";
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ reg = <0x01f00c00 0x400>;
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ r_ccu: clock@1f01400 {
+ compatible = "allwinner,sun8i-a83t-r-ccu";
+ reg = <0x01f01400 0x400>;
+ clocks = <&osc24M>, <&osc16Md512>, <&osc16M>,
+ <&ccu 6>;
+ clock-names = "hosc", "losc", "iosc", "pll-periph";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+ r_pio: pinctrl@1f02c00 {
+ compatible = "allwinner,sun8i-a83t-r-pinctrl";
+ reg = <0x01f02c00 0x400>;
+ interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&r_ccu CLK_APB0_PIO>, <&osc24M>,
+ <&osc16Md512>;
+ clock-names = "apb", "hosc", "losc";
+ gpio-controller;
+ #gpio-cells = <3>;
+ interrupt-controller;
+ #interrupt-cells = <3>;
+
+ r_rsb_pins: r-rsb-pins {
+ pins = "PL0", "PL1";
+ function = "s_rsb";
+ drive-strength = <20>;
+ bias-pull-up;
+ };
+ };
+
+ r_rsb: rsb@1f03400 {
+ compatible = "allwinner,sun8i-a83t-rsb",
+ "allwinner,sun8i-a23-rsb";
+ reg = <0x01f03400 0x400>;
+ interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&r_ccu CLK_APB0_RSB>;
+ clock-frequency = <3000000>;
+ resets = <&r_ccu RST_APB0_RSB>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&r_rsb_pins>;
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
};
};
diff --git a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts
index 9e8b082c134f..b1502df7b509 100644
--- a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts
+++ b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts
@@ -56,7 +56,6 @@
aliases {
serial0 = &uart0;
- /* ethernet0 is the H3 emac, defined in sun8i-h3.dtsi */
ethernet1 = &xr819;
};
@@ -143,6 +142,19 @@
status = "okay";
};
+&spi0 {
+ /* Disable SPI NOR by default: it optional on Orange Pi Zero boards */
+ status = "disabled";
+
+ flash@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "mxicy,mx25l1606e", "winbond,w25q128";
+ reg = <0>;
+ spi-max-frequency = <40000000>;
+ };
+};
+
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins_a>;
diff --git a/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts b/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts
index 52acbe111cad..a337af1de322 100644
--- a/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts
+++ b/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts
@@ -84,6 +84,16 @@
};
};
+ reg_gmac_3v3: gmac-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "gmac-3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ startup-delay-us = <100000>;
+ enable-active-high;
+ gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>;
+ };
+
wifi_pwrseq: wifi_pwrseq {
compatible = "mmc-pwrseq-simple";
pinctrl-names = "default";
@@ -92,6 +102,10 @@
};
};
+&ehci0 {
+ status = "okay";
+};
+
&ehci1 {
status = "okay";
};
@@ -126,7 +140,7 @@
non-removable;
status = "okay";
- brcmf: bcrmf@1 {
+ brcmf: wifi@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
interrupt-parent = <&pio>;
@@ -145,6 +159,10 @@
status = "okay";
};
+&ohci0 {
+ status = "okay";
+};
+
&ohci1 {
status = "okay";
};
@@ -170,6 +188,11 @@
};
};
+&reg_usb0_vbus {
+ gpio = <&pio 3 11 GPIO_ACTIVE_HIGH>; /* PD11 */
+ status = "okay";
+};
+
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins_a>;
@@ -182,7 +205,14 @@
status = "okay";
};
+&usb_otg {
+ dr_mode = "otg";
+ status = "okay";
+};
+
&usbphy {
- /* USB VBUS is on as long as VCC-IO is on */
+ usb0_id_det-gpios = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
+ usb0_vbus-supply = <&reg_usb0_vbus>;
+ /* USB host VBUS is on as long as VCC-IO is on */
status = "okay";
};
diff --git a/arch/arm/boot/dts/sun8i-h3-beelink-x2.dts b/arch/arm/boot/dts/sun8i-h3-beelink-x2.dts
index e7fae65eb5d3..10da56e86ab8 100644
--- a/arch/arm/boot/dts/sun8i-h3-beelink-x2.dts
+++ b/arch/arm/boot/dts/sun8i-h3-beelink-x2.dts
@@ -100,6 +100,10 @@
};
};
+&ehci0 {
+ status = "okay";
+};
+
&ehci1 {
status = "okay";
};
@@ -147,10 +151,19 @@
status = "okay";
};
+&ohci0 {
+ status = "okay";
+};
+
&ohci1 {
status = "okay";
};
+&reg_usb0_vbus {
+ gpio = <&r_pio 0 2 GPIO_ACTIVE_HIGH>; /* PL2 */
+ status = "okay";
+};
+
&spdif {
pinctrl-names = "default";
pinctrl-0 = <&spdif_tx_pins_a>;
@@ -163,7 +176,14 @@
status = "okay";
};
+&usb_otg {
+ dr_mode = "otg";
+ status = "okay";
+};
+
&usbphy {
- /* USB VBUS is on as long as VCC-IO is on */
+ /* USB VBUS is always on except for the OTG port */
status = "okay";
+ usb0_id_det-gpios = <&pio 0 7 GPIO_ACTIVE_HIGH>; /* PA07 */
+ usb0_vbus-supply = <&reg_usb0_vbus>;
};
diff --git a/arch/arm/boot/dts/sun8i-h3-nanopi-m1-plus.dts b/arch/arm/boot/dts/sun8i-h3-nanopi-m1-plus.dts
new file mode 100644
index 000000000000..8ddd1b2cc097
--- /dev/null
+++ b/arch/arm/boot/dts/sun8i-h3-nanopi-m1-plus.dts
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2017 Jagan Teki <jteki@openedev.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "sun8i-h3-nanopi.dtsi"
+
+/ {
+ model = "FriendlyArm NanoPi M1 Plus";
+ compatible = "friendlyarm,nanopi-m1-plus", "allwinner,sun8i-h3";
+};
+
+&ehci1 {
+ status = "okay";
+};
+
+&ehci2 {
+ status = "okay";
+};
+
+&ohci1 {
+ status = "okay";
+};
+
+&ohci2 {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-2.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-2.dts
index 5b6d14555b7c..8ff71b1bb45b 100644
--- a/arch/arm/boot/dts/sun8i-h3-orangepi-2.dts
+++ b/arch/arm/boot/dts/sun8i-h3-orangepi-2.dts
@@ -104,6 +104,15 @@
};
};
+&codec {
+ allwinner,pa-gpios = <&pio 0 16 GPIO_ACTIVE_HIGH>; /* PA16 */
+ allwinner,audio-routing =
+ "Speaker", "LINEOUT",
+ "MIC1", "Mic",
+ "Mic", "MBIAS";
+ status = "okay";
+};
+
&ehci1 {
status = "okay";
};
@@ -195,10 +204,6 @@
status = "disabled";
};
-&usb1_vbus_pin_a {
- pins = "PG13";
-};
-
&usbphy {
usb1_vbus-supply = <&reg_usb1_vbus>;
status = "okay";
diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts
index f148111c326d..1a044b17d6c6 100644
--- a/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts
+++ b/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts
@@ -97,6 +97,10 @@
status = "okay";
};
+&ehci0 {
+ status = "okay";
+};
+
&ehci1 {
status = "okay";
};
@@ -125,6 +129,10 @@
status = "okay";
};
+&ohci0 {
+ status = "okay";
+};
+
&ohci1 {
status = "okay";
};
@@ -156,6 +164,11 @@
};
};
+&reg_usb0_vbus {
+ gpio = <&r_pio 0 2 GPIO_ACTIVE_HIGH>; /* PL2 */
+ status = "okay";
+};
+
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins_a>;
@@ -180,7 +193,14 @@
status = "disabled";
};
+&usb_otg {
+ dr_mode = "otg";
+ status = "okay";
+};
+
&usbphy {
- /* USB VBUS is always on */
+ usb0_id_det-gpios = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
+ usb0_vbus-supply = <&reg_usb0_vbus>;
+ /* VBUS on USB host ports are always on */
status = "okay";
};
diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts
index 8c40ab7bfa72..828ae7a526d9 100644
--- a/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts
+++ b/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts
@@ -47,6 +47,16 @@
model = "Xunlong Orange Pi Plus / Plus 2";
compatible = "xunlong,orangepi-plus", "allwinner,sun8i-h3";
+ reg_gmac_3v3: gmac-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "gmac-3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ startup-delay-us = <100000>;
+ enable-active-high;
+ gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>;
+ };
+
reg_usb3_vbus: usb3-vbus {
compatible = "regulator-fixed";
pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-plus2e.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-plus2e.dts
index 5851a47a3089..97920b12a944 100644
--- a/arch/arm/boot/dts/sun8i-h3-orangepi-plus2e.dts
+++ b/arch/arm/boot/dts/sun8i-h3-orangepi-plus2e.dts
@@ -50,4 +50,14 @@
/ {
model = "Xunlong Orange Pi Plus 2E";
compatible = "xunlong,orangepi-plus2e", "allwinner,sun8i-h3";
+
+ reg_gmac_3v3: gmac-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "gmac-3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ startup-delay-us = <100000>;
+ enable-active-high;
+ gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>; /* PD6 */
+ };
};
diff --git a/arch/arm/boot/dts/sun8i-r16-bananapi-m2m.dts b/arch/arm/boot/dts/sun8i-r16-bananapi-m2m.dts
new file mode 100644
index 000000000000..eaf09666720d
--- /dev/null
+++ b/arch/arm/boot/dts/sun8i-r16-bananapi-m2m.dts
@@ -0,0 +1,321 @@
+/*
+ * Copyright (c) 2017 Free Electrons <maxime.ripard@free-electrons.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include "sun8i-a33.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ model = "BananaPi M2 Magic";
+ compatible = "sinovoip,bananapi-m2m", "allwinner,sun8i-a33";
+
+ aliases {
+ i2c0 = &i2c0;
+ i2c1 = &i2c1;
+ i2c2 = &i2c2;
+ serial0 = &uart0;
+ serial1 = &uart1;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ blue {
+ label = "bpi-m2m:blue:usr";
+ gpios = <&pio 2 7 GPIO_ACTIVE_LOW>;
+ };
+
+ green {
+ label = "bpi-m2m:green:usr";
+ gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>;
+ };
+
+ red {
+ label = "bpi-m2m:red:power";
+ gpios = <&r_pio 0 3 GPIO_ACTIVE_LOW>;
+ default-state = "on";
+ };
+ };
+
+ reg_vcc5v0: vcc5v0 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc5v0";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ };
+
+ wifi_pwrseq: wifi_pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ reset-gpios = <&r_pio 0 6 GPIO_ACTIVE_LOW>; /* PL06 */
+ };
+};
+
+&codec {
+ status = "okay";
+};
+
+&cpu0 {
+ cpu-supply = <&reg_dcdc3>;
+};
+
+&cpu0_opp_table {
+ opp@1104000000 {
+ opp-hz = /bits/ 64 <1104000000>;
+ opp-microvolt = <1320000>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ };
+
+ opp@1200000000 {
+ opp-hz = /bits/ 64 <1200000000>;
+ opp-microvolt = <1320000>;
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ };
+};
+
+&dai {
+ status = "okay";
+};
+
+&ehci0 {
+ status = "okay";
+};
+
+/* This is the i2c bus exposed on the DSI connector for the touch panel */
+&i2c0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_pins_a>;
+ status = "disabled";
+};
+
+/* This is the i2c bus exposed on the GPIO header */
+&i2c1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_pins_a>;
+ status = "disabled";
+};
+
+/* This is the i2c bus exposed on the CSI connector to control the sensor */
+&i2c2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c2_pins_a>;
+ status = "disabled";
+};
+
+&mmc0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_pins_a>;
+ vmmc-supply = <&reg_dcdc1>;
+ bus-width = <4>;
+ cd-gpios = <&pio 1 4 GPIO_ACTIVE_HIGH>; /* PB4 */
+ cd-inverted;
+ status = "okay";
+};
+
+&mmc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc1_pins_a>;
+ vmmc-supply = <&reg_aldo1>;
+ mmc-pwrseq = <&wifi_pwrseq>;
+ bus-width = <4>;
+ non-removable;
+ status = "okay";
+};
+
+&mmc2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc2_8bit_pins>;
+ vmmc-supply = <&reg_dcdc1>;
+ bus-width = <8>;
+ non-removable;
+ cap-mmc-hw-reset;
+ status = "okay";
+};
+
+&ohci0 {
+ status = "okay";
+};
+
+&r_rsb {
+ status = "okay";
+
+ axp22x: pmic@3a3 {
+ compatible = "x-powers,axp223";
+ reg = <0x3a3>;
+ interrupt-parent = <&nmi_intc>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ eldoin-supply = <&reg_dcdc1>;
+ x-powers,drive-vbus-en;
+ };
+};
+
+#include "axp223.dtsi"
+
+&ac_power_supply {
+ status = "okay";
+};
+
+&reg_aldo1 {
+ regulator-always-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-name = "vcc-io";
+};
+
+&reg_aldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <2500000>;
+ regulator-max-microvolt = <2500000>;
+ regulator-name = "vdd-dll";
+};
+
+&reg_aldo3 {
+ regulator-always-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-name = "avcc";
+};
+
+&reg_dc1sw {
+ regulator-name = "vcc-lcd";
+};
+
+&reg_dc5ldo {
+ regulator-always-on;
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-name = "vdd-cpus";
+};
+
+&reg_dcdc1 {
+ regulator-always-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-name = "vcc-3v0";
+};
+
+&reg_dcdc2 {
+ regulator-always-on;
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-name = "vdd-sys";
+};
+
+&reg_dcdc3 {
+ regulator-always-on;
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-name = "vdd-cpu";
+};
+
+&reg_dcdc5 {
+ regulator-always-on;
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-name = "vcc-dram";
+};
+
+/*
+ * Our WiFi chip needs both DLDO1 and DLDO2 to be powered at the same
+ * time, with the two being in sync. Since this is not really
+ * supported right now, just use the two as always on, and we will fix
+ * it later.
+ */
+&reg_dldo1 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-wifi0";
+};
+
+&reg_dldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-wifi1";
+};
+
+&reg_drivevbus {
+ regulator-name = "usb0-vbus";
+ status = "okay";
+};
+
+&reg_rtc_ldo {
+ regulator-name = "vcc-rtc";
+};
+
+&sound {
+ status = "okay";
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pins_b>;
+ status = "okay";
+};
+
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_pins_a>, <&uart1_pins_cts_rts_a>;
+ status = "okay";
+};
+
+&usb_otg {
+ dr_mode = "otg";
+ status = "okay";
+};
+
+&usb_power_supply {
+ status = "okay";
+};
+
+&usbphy {
+ usb0_id_det-gpios = <&pio 7 8 GPIO_ACTIVE_HIGH>; /* PH8 */
+ usb0_vbus_power-supply = <&usb_power_supply>;
+ usb0_vbus-supply = <&reg_drivevbus>;
+ usb1_vbus-supply = <&reg_vcc5v0>;
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/sun8i-v3s-licheepi-zero-dock.dts b/arch/arm/boot/dts/sun8i-v3s-licheepi-zero-dock.dts
new file mode 100644
index 000000000000..d1311098ea45
--- /dev/null
+++ b/arch/arm/boot/dts/sun8i-v3s-licheepi-zero-dock.dts
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2016 Icenowy Zheng <icenowy@aosc.xyz>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "sun8i-v3s-licheepi-zero.dts"
+
+#include <dt-bindings/input/input.h>
+
+/ {
+ model = "Lichee Pi Zero with Dock";
+ compatible = "licheepi,licheepi-zero-dock", "licheepi,licheepi-zero",
+ "allwinner,sun8i-v3s";
+
+ leds {
+ /* The LEDs use PG0~2 pins, which conflict with MMC1 */
+ status = "disbaled";
+ };
+};
+
+&mmc1 {
+ broken-cd;
+ bus-width = <4>;
+ vmmc-supply = <&reg_vcc3v3>;
+ status = "okay";
+};
+
+&lradc {
+ vref-supply = <&reg_vcc3v0>;
+ status = "okay";
+
+ button@200 {
+ label = "Volume Up";
+ linux,code = <KEY_VOLUMEUP>;
+ channel = <0>;
+ voltage = <200000>;
+ };
+
+ button@400 {
+ label = "Volume Down";
+ linux,code = <KEY_VOLUMEDOWN>;
+ channel = <0>;
+ voltage = <400000>;
+ };
+
+ button@600 {
+ label = "Select";
+ linux,code = <KEY_SELECT>;
+ channel = <0>;
+ voltage = <600000>;
+ };
+
+ button@800 {
+ label = "Start";
+ linux,code = <KEY_OK>;
+ channel = <0>;
+ voltage = <800000>;
+ };
+};
diff --git a/arch/arm/boot/dts/sun8i-v3s.dtsi b/arch/arm/boot/dts/sun8i-v3s.dtsi
index 71075969e5e6..3a06dc5b3746 100644
--- a/arch/arm/boot/dts/sun8i-v3s.dtsi
+++ b/arch/arm/boot/dts/sun8i-v3s.dtsi
@@ -41,6 +41,8 @@
*/
#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/sun8i-v3s-ccu.h>
+#include <dt-bindings/reset/sun8i-v3s-ccu.h>
/ {
#address-cells = <1>;
@@ -55,10 +57,16 @@
compatible = "arm,cortex-a7";
device_type = "cpu";
reg = <0>;
- clocks = <&ccu 14>;
+ clocks = <&ccu CLK_CPU>;
};
};
+ de: display-engine {
+ compatible = "allwinner,sun8i-v3s-display-engine";
+ allwinner,pipelines = <&mixer0>;
+ status = "disabled";
+ };
+
timer {
compatible = "arm,armv7-timer";
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
@@ -93,18 +101,95 @@
#size-cells = <1>;
ranges;
+ display_clocks: clock@1000000 {
+ compatible = "allwinner,sun8i-v3s-de2-clk";
+ reg = <0x01000000 0x100000>;
+ clocks = <&ccu CLK_DE>,
+ <&ccu CLK_BUS_DE>;
+ clock-names = "mod",
+ "bus";
+ resets = <&ccu RST_BUS_DE>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+ mixer0: mixer@1100000 {
+ compatible = "allwinner,sun8i-v3s-de2-mixer";
+ reg = <0x01100000 0x100000>;
+ clocks = <&display_clocks 0>,
+ <&display_clocks 6>;
+ clock-names = "bus",
+ "mod";
+ resets = <&display_clocks 0>;
+ assigned-clocks = <&display_clocks 6>;
+ assigned-clock-rates = <150000000>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mixer0_out: port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ mixer0_out_tcon0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&tcon0_in_mixer0>;
+ };
+ };
+ };
+ };
+
+ tcon0: lcd-controller@1c0c000 {
+ compatible = "allwinner,sun8i-v3s-tcon";
+ reg = <0x01c0c000 0x1000>;
+ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_TCON0>,
+ <&ccu CLK_TCON0>;
+ clock-names = "ahb",
+ "tcon-ch0";
+ clock-output-names = "tcon-pixel-clock";
+ resets = <&ccu RST_BUS_TCON0>;
+ reset-names = "lcd";
+ status = "disabled";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ tcon0_in: port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ tcon0_in_mixer0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&mixer0_out_tcon0>;
+ };
+ };
+
+ tcon0_out: port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ };
+ };
+
+
mmc0: mmc@01c0f000 {
compatible = "allwinner,sun7i-a20-mmc";
reg = <0x01c0f000 0x1000>;
- clocks = <&ccu 22>,
- <&ccu 45>,
- <&ccu 47>,
- <&ccu 46>;
+ clocks = <&ccu CLK_BUS_MMC0>,
+ <&ccu CLK_MMC0>,
+ <&ccu CLK_MMC0_OUTPUT>,
+ <&ccu CLK_MMC0_SAMPLE>;
clock-names = "ahb",
"mmc",
"output",
"sample";
- resets = <&ccu 7>;
+ resets = <&ccu RST_BUS_MMC0>;
reset-names = "ahb";
interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";
@@ -115,17 +200,19 @@
mmc1: mmc@01c10000 {
compatible = "allwinner,sun7i-a20-mmc";
reg = <0x01c10000 0x1000>;
- clocks = <&ccu 23>,
- <&ccu 48>,
- <&ccu 50>,
- <&ccu 49>;
+ clocks = <&ccu CLK_BUS_MMC1>,
+ <&ccu CLK_MMC1>,
+ <&ccu CLK_MMC1_OUTPUT>,
+ <&ccu CLK_MMC1_SAMPLE>;
clock-names = "ahb",
"mmc",
"output",
"sample";
- resets = <&ccu 8>;
+ resets = <&ccu RST_BUS_MMC1>;
reset-names = "ahb";
interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc1_pins>;
status = "disabled";
#address-cells = <1>;
#size-cells = <0>;
@@ -134,15 +221,15 @@
mmc2: mmc@01c11000 {
compatible = "allwinner,sun7i-a20-mmc";
reg = <0x01c11000 0x1000>;
- clocks = <&ccu 24>,
- <&ccu 51>,
- <&ccu 53>,
- <&ccu 52>;
+ clocks = <&ccu CLK_BUS_MMC2>,
+ <&ccu CLK_MMC2>,
+ <&ccu CLK_MMC2_OUTPUT>,
+ <&ccu CLK_MMC2_SAMPLE>;
clock-names = "ahb",
"mmc",
"output",
"sample";
- resets = <&ccu 9>;
+ resets = <&ccu RST_BUS_MMC2>;
reset-names = "ahb";
interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";
@@ -153,8 +240,8 @@
usb_otg: usb@01c19000 {
compatible = "allwinner,sun8i-h3-musb";
reg = <0x01c19000 0x0400>;
- clocks = <&ccu 29>;
- resets = <&ccu 17>;
+ clocks = <&ccu CLK_BUS_OTG>;
+ resets = <&ccu RST_BUS_OTG>;
interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "mc";
phys = <&usbphy 0>;
@@ -169,9 +256,9 @@
<0x01c1a800 0x4>;
reg-names = "phy_ctrl",
"pmu0";
- clocks = <&ccu 56>;
+ clocks = <&ccu CLK_USB_PHY0>;
clock-names = "usb0_phy";
- resets = <&ccu 0>;
+ resets = <&ccu RST_USB_PHY0>;
reset-names = "usb0_reset";
status = "disabled";
#phy-cells = <1>;
@@ -198,7 +285,7 @@
reg = <0x01c20800 0x400>;
interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&ccu 37>, <&osc24M>, <&osc32k>;
+ clocks = <&ccu CLK_BUS_PIO>, <&osc24M>, <&osc32k>;
clock-names = "apb", "hosc", "losc";
gpio-controller;
#gpio-cells = <3>;
@@ -222,6 +309,19 @@
drive-strength = <30>;
bias-pull-up;
};
+
+ mmc1_pins: mmc1 {
+ pins = "PG0", "PG1", "PG2", "PG3",
+ "PG4", "PG5";
+ function = "mmc1";
+ drive-strength = <30>;
+ bias-pull-up;
+ };
+
+ spi0_pins: spi0 {
+ pins = "PC0", "PC1", "PC2", "PC3";
+ function = "spi0";
+ };
};
timer@01c20c00 {
@@ -238,14 +338,21 @@
interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
};
+ lradc: lradc@1c22800 {
+ compatible = "allwinner,sun4i-a10-lradc-keys";
+ reg = <0x01c22800 0x400>;
+ interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
uart0: serial@01c28000 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28000 0x400>;
interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
- clocks = <&ccu 40>;
- resets = <&ccu 49>;
+ clocks = <&ccu CLK_BUS_UART0>;
+ resets = <&ccu RST_BUS_UART0>;
status = "disabled";
};
@@ -255,8 +362,8 @@
interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
- clocks = <&ccu 41>;
- resets = <&ccu 50>;
+ clocks = <&ccu CLK_BUS_UART1>;
+ resets = <&ccu RST_BUS_UART1>;
status = "disabled";
};
@@ -266,8 +373,8 @@
interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
- clocks = <&ccu 42>;
- resets = <&ccu 51>;
+ clocks = <&ccu CLK_BUS_UART2>;
+ resets = <&ccu RST_BUS_UART2>;
status = "disabled";
};
@@ -275,8 +382,8 @@
compatible = "allwinner,sun6i-a31-i2c";
reg = <0x01c2ac00 0x400>;
interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&ccu 38>;
- resets = <&ccu 46>;
+ clocks = <&ccu CLK_BUS_I2C0>;
+ resets = <&ccu RST_BUS_I2C0>;
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins>;
status = "disabled";
@@ -288,8 +395,22 @@
compatible = "allwinner,sun6i-a31-i2c";
reg = <0x01c2b000 0x400>;
interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&ccu 39>;
- resets = <&ccu 47>;
+ clocks = <&ccu CLK_BUS_I2C1>;
+ resets = <&ccu RST_BUS_I2C1>;
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ spi0: spi@1c68000 {
+ compatible = "allwinner,sun8i-h3-spi";
+ reg = <0x01c68000 0x1000>;
+ interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_SPI0>, <&ccu CLK_SPI0>;
+ clock-names = "ahb", "mod";
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi0_pins>;
+ resets = <&ccu RST_BUS_SPI0>;
status = "disabled";
#address-cells = <1>;
#size-cells = <0>;
diff --git a/arch/arm/boot/dts/sunxi-common-regulators.dtsi b/arch/arm/boot/dts/sunxi-common-regulators.dtsi
index ce5c53e4452f..d8e5826fb3de 100644
--- a/arch/arm/boot/dts/sunxi-common-regulators.dtsi
+++ b/arch/arm/boot/dts/sunxi-common-regulators.dtsi
@@ -44,33 +44,9 @@
#include <dt-bindings/gpio/gpio.h>
-&pio {
- ahci_pwr_pin_a: ahci_pwr_pin@0 {
- pins = "PB8";
- function = "gpio_out";
- };
-
- usb0_vbus_pin_a: usb0_vbus_pin@0 {
- pins = "PB9";
- function = "gpio_out";
- };
-
- usb1_vbus_pin_a: usb1_vbus_pin@0 {
- pins = "PH6";
- function = "gpio_out";
- };
-
- usb2_vbus_pin_a: usb2_vbus_pin@0 {
- pins = "PH3";
- function = "gpio_out";
- };
-};
-
/ {
reg_ahci_5v: ahci-5v {
compatible = "regulator-fixed";
- pinctrl-names = "default";
- pinctrl-0 = <&ahci_pwr_pin_a>;
regulator-name = "ahci-5v";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
@@ -82,8 +58,6 @@
reg_usb0_vbus: usb0-vbus {
compatible = "regulator-fixed";
- pinctrl-names = "default";
- pinctrl-0 = <&usb0_vbus_pin_a>;
regulator-name = "usb0-vbus";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
@@ -94,8 +68,6 @@
reg_usb1_vbus: usb1-vbus {
compatible = "regulator-fixed";
- pinctrl-names = "default";
- pinctrl-0 = <&usb1_vbus_pin_a>;
regulator-name = "usb1-vbus";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
@@ -107,8 +79,6 @@
reg_usb2_vbus: usb2-vbus {
compatible = "regulator-fixed";
- pinctrl-names = "default";
- pinctrl-0 = <&usb2_vbus_pin_a>;
regulator-name = "usb2-vbus";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
index d4f600dbb7eb..11240a8313c2 100644
--- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
+++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
@@ -41,8 +41,10 @@
*/
#include <dt-bindings/clock/sun8i-h3-ccu.h>
+#include <dt-bindings/clock/sun8i-r-ccu.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/reset/sun8i-h3-ccu.h>
+#include <dt-bindings/reset/sun8i-r-ccu.h>
/ {
interrupt-parent = <&gic>;
@@ -83,6 +85,12 @@
#size-cells = <1>;
ranges;
+ syscon: syscon@1c00000 {
+ compatible = "allwinner,sun8i-h3-system-controller",
+ "syscon";
+ reg = <0x01c00000 0x1000>;
+ };
+
dma: dma-controller@01c02000 {
compatible = "allwinner,sun8i-h3-dma";
reg = <0x01c02000 0x1000>;
@@ -279,6 +287,14 @@
interrupt-controller;
#interrupt-cells = <3>;
+ emac_rgmii_pins: emac0 {
+ pins = "PD0", "PD1", "PD2", "PD3", "PD4",
+ "PD5", "PD7", "PD8", "PD9", "PD10",
+ "PD12", "PD13", "PD15", "PD16", "PD17";
+ function = "emac";
+ drive-strength = <40>;
+ };
+
i2c0_pins: i2c0 {
pins = "PA11", "PA12";
function = "i2c0";
@@ -574,9 +590,9 @@
ir: ir@01f02000 {
compatible = "allwinner,sun5i-a13-ir";
- clocks = <&r_ccu 4>, <&r_ccu 11>;
+ clocks = <&r_ccu CLK_APB0_IR>, <&r_ccu CLK_IR>;
clock-names = "apb", "ir";
- resets = <&r_ccu 0>;
+ resets = <&r_ccu RST_APB0_IR>;
interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
reg = <0x01f02000 0x40>;
status = "disabled";
@@ -586,7 +602,7 @@
compatible = "allwinner,sun8i-h3-r-pinctrl";
reg = <0x01f02c00 0x400>;
interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&r_ccu 3>, <&osc24M>, <&osc32k>;
+ clocks = <&r_ccu CLK_APB0_PIO>, <&osc24M>, <&osc32k>;
clock-names = "apb", "hosc", "losc";
gpio-controller;
#gpio-cells = <3>;
diff --git a/arch/arm/boot/dts/tango4-smp8758.dtsi b/arch/arm/boot/dts/tango4-smp8758.dtsi
index d2e65c46bcc7..eca33d568690 100644
--- a/arch/arm/boot/dts/tango4-smp8758.dtsi
+++ b/arch/arm/boot/dts/tango4-smp8758.dtsi
@@ -13,7 +13,6 @@
reg = <0>;
clocks = <&clkgen CPU_CLK>;
clock-latency = <1>;
- operating-points = <1215000 0 607500 0 405000 0 243000 0 135000 0>;
};
cpu1: cpu@1 {
diff --git a/arch/arm/boot/dts/tango4-vantage-1172.dts b/arch/arm/boot/dts/tango4-vantage-1172.dts
index 86d8df98802f..13bcc460bcb2 100644
--- a/arch/arm/boot/dts/tango4-vantage-1172.dts
+++ b/arch/arm/boot/dts/tango4-vantage-1172.dts
@@ -22,7 +22,7 @@
};
&eth0 {
- phy-connection-type = "rgmii";
+ phy-connection-type = "rgmii-id";
phy-handle = <&eth0_phy>;
#address-cells = <1>;
#size-cells = <0>;
diff --git a/arch/arm/boot/dts/tegra114-dalmore.dts b/arch/arm/boot/dts/tegra114-dalmore.dts
index 1444fbd543e7..5af4dd321952 100644
--- a/arch/arm/boot/dts/tegra114-dalmore.dts
+++ b/arch/arm/boot/dts/tegra114-dalmore.dts
@@ -1122,6 +1122,16 @@
non-removable;
};
+ usb@7d000000 {
+ compatible = "nvidia,tegra114-udc";
+ status = "okay";
+ dr_mode = "peripheral";
+ };
+
+ usb-phy@7d000000 {
+ status = "okay";
+ };
+
usb@7d008000 {
status = "okay";
};
diff --git a/arch/arm/boot/dts/tegra124-apalis-eval.dts b/arch/arm/boot/dts/tegra124-apalis-eval.dts
index 5b860ad5cbee..ecffcd115fa7 100644
--- a/arch/arm/boot/dts/tegra124-apalis-eval.dts
+++ b/arch/arm/boot/dts/tegra124-apalis-eval.dts
@@ -63,7 +63,7 @@
stdout-path = "serial0:115200n8";
};
- pcie-controller@01003000 {
+ pcie@1003000 {
pci@1,0 {
status = "okay";
};
diff --git a/arch/arm/boot/dts/tegra124-apalis.dtsi b/arch/arm/boot/dts/tegra124-apalis.dtsi
index f9e623bdd5c3..5d9b18ef5af6 100644
--- a/arch/arm/boot/dts/tegra124-apalis.dtsi
+++ b/arch/arm/boot/dts/tegra124-apalis.dtsi
@@ -54,7 +54,7 @@
reg = <0x0 0x80000000 0x0 0x80000000>;
};
- pcie-controller@01003000 {
+ pcie@1003000 {
status = "okay";
avddio-pex-supply = <&vdd_1v05>;
diff --git a/arch/arm/boot/dts/tegra124-jetson-tk1.dts b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
index 53994f9fbbcc..61873d642a45 100644
--- a/arch/arm/boot/dts/tegra124-jetson-tk1.dts
+++ b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
@@ -27,7 +27,7 @@
reg = <0x0 0x80000000 0x0 0x80000000>;
};
- pcie-controller@01003000 {
+ pcie@1003000 {
status = "okay";
avddio-pex-supply = <&vdd_1v05_run>;
@@ -1722,7 +1722,7 @@
lanes {
usb2-0 {
- nvidia,function = "xusb";
+ nvidia,function = "snps";
status = "okay";
};
@@ -1829,6 +1829,16 @@
};
};
+ usb@7d000000 {
+ compatible = "nvidia,tegra124-udc";
+ status = "okay";
+ dr_mode = "peripheral";
+ };
+
+ usb-phy@7d000000 {
+ status = "okay";
+ };
+
/* mini-PCIe USB */
usb@7d004000 {
status = "okay";
diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
index 187a36c6d0fc..8baf00b89efb 100644
--- a/arch/arm/boot/dts/tegra124.dtsi
+++ b/arch/arm/boot/dts/tegra124.dtsi
@@ -14,7 +14,7 @@
#address-cells = <2>;
#size-cells = <2>;
- pcie-controller@01003000 {
+ pcie@1003000 {
compatible = "nvidia,tegra124-pcie";
device_type = "pci";
reg = <0x0 0x01003000 0x0 0x00000800 /* PADS registers */
@@ -54,6 +54,7 @@
device_type = "pci";
assigned-addresses = <0x82000800 0 0x01000000 0 0x1000>;
reg = <0x000800 0 0 0 0>;
+ bus-range = <0x00 0xff>;
status = "disabled";
#address-cells = <3>;
@@ -67,6 +68,7 @@
device_type = "pci";
assigned-addresses = <0x82001000 0 0x01001000 0 0x1000>;
reg = <0x001000 0 0 0 0>;
+ bus-range = <0x00 0xff>;
status = "disabled";
#address-cells = <3>;
@@ -85,6 +87,7 @@
clocks = <&tegra_car TEGRA124_CLK_HOST1X>;
resets = <&tegra_car 28>;
reset-names = "host1x";
+ iommus = <&mc TEGRA_SWGROUP_HC>;
#address-cells = <2>;
#size-cells = <2>;
diff --git a/arch/arm/boot/dts/tegra20-harmony.dts b/arch/arm/boot/dts/tegra20-harmony.dts
index d4fb4d39ede7..41749693ec3c 100644
--- a/arch/arm/boot/dts/tegra20-harmony.dts
+++ b/arch/arm/boot/dts/tegra20-harmony.dts
@@ -566,7 +566,7 @@
nvidia,sys-clock-req-active-high;
};
- pcie-controller@80003000 {
+ pcie@80003000 {
status = "okay";
avdd-pex-supply = <&pci_vdd_reg>;
diff --git a/arch/arm/boot/dts/tegra20-paz00.dts b/arch/arm/boot/dts/tegra20-paz00.dts
index b4bfa5586c23..bfa9421fcf94 100644
--- a/arch/arm/boot/dts/tegra20-paz00.dts
+++ b/arch/arm/boot/dts/tegra20-paz00.dts
@@ -452,7 +452,9 @@
};
usb@c5000000 {
+ compatible = "nvidia,tegra20-udc";
status = "okay";
+ dr_mode = "peripheral";
};
usb-phy@c5000000 {
diff --git a/arch/arm/boot/dts/tegra20-tamonten.dtsi b/arch/arm/boot/dts/tegra20-tamonten.dtsi
index 27d2bbbf1eae..7361f4a82e80 100644
--- a/arch/arm/boot/dts/tegra20-tamonten.dtsi
+++ b/arch/arm/boot/dts/tegra20-tamonten.dtsi
@@ -478,7 +478,7 @@
nvidia,sys-clock-req-active-high;
};
- pcie-controller@80003000 {
+ pcie@80003000 {
avdd-pex-supply = <&pci_vdd_reg>;
vdd-pex-supply = <&pci_vdd_reg>;
avdd-pex-pll-supply = <&pci_vdd_reg>;
diff --git a/arch/arm/boot/dts/tegra20-tec.dts b/arch/arm/boot/dts/tegra20-tec.dts
index c12d8bead2ee..9cb534f4441e 100644
--- a/arch/arm/boot/dts/tegra20-tec.dts
+++ b/arch/arm/boot/dts/tegra20-tec.dts
@@ -32,7 +32,7 @@
};
};
- pcie-controller@80003000 {
+ pcie@80003000 {
status = "okay";
pci@1,0 {
diff --git a/arch/arm/boot/dts/tegra20-trimslice.dts b/arch/arm/boot/dts/tegra20-trimslice.dts
index 87b07fbadbbe..b902ab594afa 100644
--- a/arch/arm/boot/dts/tegra20-trimslice.dts
+++ b/arch/arm/boot/dts/tegra20-trimslice.dts
@@ -321,7 +321,7 @@
nvidia,sys-clock-req-active-high;
};
- pcie-controller@80003000 {
+ pcie@80003000 {
status = "okay";
avdd-pex-supply = <&pci_vdd_reg>;
diff --git a/arch/arm/boot/dts/tegra20-whistler.dts b/arch/arm/boot/dts/tegra20-whistler.dts
deleted file mode 100644
index 1e06f854c8b4..000000000000
--- a/arch/arm/boot/dts/tegra20-whistler.dts
+++ /dev/null
@@ -1,636 +0,0 @@
-/dts-v1/;
-
-#include <dt-bindings/input/input.h>
-#include "tegra20.dtsi"
-
-/ {
- model = "NVIDIA Tegra20 Whistler evaluation board";
- compatible = "nvidia,whistler", "nvidia,tegra20";
-
- aliases {
- rtc0 = "/i2c@7000d000/max8907@3c";
- rtc1 = "/rtc@7000e000";
- serial0 = &uarta;
- };
-
- chosen {
- stdout-path = "serial0:115200n8";
- };
-
- memory {
- reg = <0x00000000 0x20000000>;
- };
-
- host1x@50000000 {
- hdmi@54280000 {
- status = "okay";
-
- vdd-supply = <&hdmi_vdd_reg>;
- pll-supply = <&hdmi_pll_reg>;
-
- nvidia,ddc-i2c-bus = <&hdmi_ddc>;
- nvidia,hpd-gpio = <&gpio TEGRA_GPIO(N, 7)
- GPIO_ACTIVE_HIGH>;
- };
- };
-
- pinmux@70000014 {
- pinctrl-names = "default";
- pinctrl-0 = <&state_default>;
-
- state_default: pinmux {
- ata {
- nvidia,pins = "ata", "atb", "ate", "gma", "gmb",
- "gmc", "gmd", "gpu";
- nvidia,function = "gmi";
- };
- atc {
- nvidia,pins = "atc", "atd";
- nvidia,function = "sdio4";
- };
- cdev1 {
- nvidia,pins = "cdev1";
- nvidia,function = "plla_out";
- };
- cdev2 {
- nvidia,pins = "cdev2";
- nvidia,function = "osc";
- };
- crtp {
- nvidia,pins = "crtp";
- nvidia,function = "crt";
- };
- csus {
- nvidia,pins = "csus";
- nvidia,function = "vi_sensor_clk";
- };
- dap1 {
- nvidia,pins = "dap1";
- nvidia,function = "dap1";
- };
- dap2 {
- nvidia,pins = "dap2";
- nvidia,function = "dap2";
- };
- dap3 {
- nvidia,pins = "dap3";
- nvidia,function = "dap3";
- };
- dap4 {
- nvidia,pins = "dap4";
- nvidia,function = "dap4";
- };
- ddc {
- nvidia,pins = "ddc";
- nvidia,function = "i2c2";
- };
- dta {
- nvidia,pins = "dta", "dtb", "dtc", "dtd";
- nvidia,function = "vi";
- };
- dte {
- nvidia,pins = "dte";
- nvidia,function = "rsvd1";
- };
- dtf {
- nvidia,pins = "dtf";
- nvidia,function = "i2c3";
- };
- gme {
- nvidia,pins = "gme";
- nvidia,function = "dap5";
- };
- gpu7 {
- nvidia,pins = "gpu7";
- nvidia,function = "rtck";
- };
- gpv {
- nvidia,pins = "gpv";
- nvidia,function = "pcie";
- };
- hdint {
- nvidia,pins = "hdint", "pta";
- nvidia,function = "hdmi";
- };
- i2cp {
- nvidia,pins = "i2cp";
- nvidia,function = "i2cp";
- };
- irrx {
- nvidia,pins = "irrx", "irtx";
- nvidia,function = "uartb";
- };
- kbca {
- nvidia,pins = "kbca", "kbcc", "kbce", "kbcf";
- nvidia,function = "kbc";
- };
- kbcb {
- nvidia,pins = "kbcb", "kbcd";
- nvidia,function = "sdio2";
- };
- lcsn {
- nvidia,pins = "lcsn", "lsck", "lsda", "lsdi",
- "spia", "spib", "spic";
- nvidia,function = "spi3";
- };
- ld0 {
- nvidia,pins = "ld0", "ld1", "ld2", "ld3", "ld4",
- "ld5", "ld6", "ld7", "ld8", "ld9",
- "ld10", "ld11", "ld12", "ld13", "ld14",
- "ld15", "ld16", "ld17", "ldc", "ldi",
- "lhp0", "lhp1", "lhp2", "lhs", "lm0",
- "lm1", "lpp", "lpw0", "lpw1", "lpw2",
- "lsc0", "lsc1", "lspi", "lvp0", "lvp1",
- "lvs";
- nvidia,function = "displaya";
- };
- owc {
- nvidia,pins = "owc", "uac";
- nvidia,function = "owr";
- };
- pmc {
- nvidia,pins = "pmc";
- nvidia,function = "pwr_on";
- };
- rm {
- nvidia,pins = "rm";
- nvidia,function = "i2c1";
- };
- sdb {
- nvidia,pins = "sdb", "sdc", "sdd", "slxa",
- "slxc", "slxd", "slxk";
- nvidia,function = "sdio3";
- };
- sdio1 {
- nvidia,pins = "sdio1";
- nvidia,function = "sdio1";
- };
- spdi {
- nvidia,pins = "spdi", "spdo";
- nvidia,function = "rsvd2";
- };
- spid {
- nvidia,pins = "spid", "spie", "spig", "spih";
- nvidia,function = "spi2_alt";
- };
- spif {
- nvidia,pins = "spif";
- nvidia,function = "spi2";
- };
- uaa {
- nvidia,pins = "uaa", "uab";
- nvidia,function = "uarta";
- };
- uad {
- nvidia,pins = "uad";
- nvidia,function = "irda";
- };
- uca {
- nvidia,pins = "uca", "ucb";
- nvidia,function = "uartc";
- };
- uda {
- nvidia,pins = "uda";
- nvidia,function = "spi1";
- };
- conf_ata {
- nvidia,pins = "ata", "atb", "atc", "ddc", "gma",
- "gmb", "gmc", "gmd", "irrx", "irtx",
- "kbca", "kbcb", "kbcc", "kbcd", "kbce",
- "kbcf", "sdc", "sdd", "spie", "spig",
- "spih", "uaa", "uab", "uad", "uca",
- "ucb";
- nvidia,pull = <TEGRA_PIN_PULL_UP>;
- nvidia,tristate = <TEGRA_PIN_DISABLE>;
- };
- conf_atd {
- nvidia,pins = "atd", "ate", "cdev1", "csus",
- "dap1", "dap2", "dap3", "dap4", "dte",
- "dtf", "gpu", "gpu7", "gpv", "i2cp",
- "rm", "sdio1", "slxa", "slxc", "slxd",
- "slxk", "spdi", "spdo", "uac", "uda";
- nvidia,pull = <TEGRA_PIN_PULL_NONE>;
- nvidia,tristate = <TEGRA_PIN_DISABLE>;
- };
- conf_cdev2 {
- nvidia,pins = "cdev2", "spia", "spib";
- nvidia,pull = <TEGRA_PIN_PULL_DOWN>;
- nvidia,tristate = <TEGRA_PIN_ENABLE>;
- };
- conf_ck32 {
- nvidia,pins = "ck32", "ddrc", "lc", "pmca",
- "pmcb", "pmcc", "pmcd", "xm2c",
- "xm2d";
- nvidia,pull = <TEGRA_PIN_PULL_NONE>;
- };
- conf_crtp {
- nvidia,pins = "crtp";
- nvidia,pull = <TEGRA_PIN_PULL_NONE>;
- nvidia,tristate = <TEGRA_PIN_ENABLE>;
- };
- conf_dta {
- nvidia,pins = "dta", "dtb", "dtc", "dtd",
- "spid", "spif";
- nvidia,pull = <TEGRA_PIN_PULL_DOWN>;
- nvidia,tristate = <TEGRA_PIN_DISABLE>;
- };
- conf_gme {
- nvidia,pins = "gme", "owc", "pta", "spic";
- nvidia,pull = <TEGRA_PIN_PULL_UP>;
- nvidia,tristate = <TEGRA_PIN_ENABLE>;
- };
- conf_ld17_0 {
- nvidia,pins = "ld17_0", "ld19_18", "ld21_20",
- "ld23_22";
- nvidia,pull = <TEGRA_PIN_PULL_DOWN>;
- };
- conf_ls {
- nvidia,pins = "ls", "pmce";
- nvidia,pull = <TEGRA_PIN_PULL_UP>;
- };
- drive_dap1 {
- nvidia,pins = "drive_dap1";
- nvidia,high-speed-mode = <TEGRA_PIN_DISABLE>;
- nvidia,schmitt = <TEGRA_PIN_ENABLE>;
- nvidia,low-power-mode = <TEGRA_PIN_LP_DRIVE_DIV_8>;
- nvidia,pull-down-strength = <0>;
- nvidia,pull-up-strength = <0>;
- nvidia,slew-rate-rising = <TEGRA_PIN_SLEW_RATE_FASTEST>;
- nvidia,slew-rate-falling = <TEGRA_PIN_SLEW_RATE_FASTEST>;
- };
- };
- };
-
- i2s@70002800 {
- status = "okay";
- };
-
- serial@70006000 {
- status = "okay";
- };
-
- hdmi_ddc: i2c@7000c400 {
- status = "okay";
- clock-frequency = <100000>;
- };
-
- i2c@7000d000 {
- status = "okay";
- clock-frequency = <100000>;
-
- codec: codec@1a {
- compatible = "wlf,wm8753";
- reg = <0x1a>;
- };
-
- tca6416: gpio@20 {
- compatible = "ti,tca6416";
- reg = <0x20>;
- gpio-controller;
- #gpio-cells = <2>;
- };
-
- max8907@3c {
- compatible = "maxim,max8907";
- reg = <0x3c>;
- interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
-
- maxim,system-power-controller;
-
- mbatt-supply = <&usb0_vbus_reg>;
- in-v1-supply = <&mbatt_reg>;
- in-v2-supply = <&mbatt_reg>;
- in-v3-supply = <&mbatt_reg>;
- in1-supply = <&mbatt_reg>;
- in2-supply = <&nvvdd_sv3_reg>;
- in3-supply = <&mbatt_reg>;
- in4-supply = <&mbatt_reg>;
- in5-supply = <&mbatt_reg>;
- in6-supply = <&mbatt_reg>;
- in7-supply = <&mbatt_reg>;
- in8-supply = <&mbatt_reg>;
- in9-supply = <&mbatt_reg>;
- in10-supply = <&mbatt_reg>;
- in11-supply = <&mbatt_reg>;
- in12-supply = <&mbatt_reg>;
- in13-supply = <&mbatt_reg>;
- in14-supply = <&mbatt_reg>;
- in15-supply = <&mbatt_reg>;
- in16-supply = <&mbatt_reg>;
- in17-supply = <&nvvdd_sv3_reg>;
- in18-supply = <&nvvdd_sv3_reg>;
- in19-supply = <&mbatt_reg>;
- in20-supply = <&mbatt_reg>;
-
- regulators {
- mbatt_reg: mbatt {
- regulator-name = "vbat_pmu";
- regulator-always-on;
- };
-
- sd1 {
- regulator-name = "nvvdd_sv1,vdd_cpu_pmu";
- regulator-min-microvolt = <1000000>;
- regulator-max-microvolt = <1000000>;
- regulator-always-on;
- };
-
- sd2 {
- regulator-name = "nvvdd_sv2,vdd_core";
- regulator-min-microvolt = <1200000>;
- regulator-max-microvolt = <1200000>;
- regulator-always-on;
- };
-
- nvvdd_sv3_reg: sd3 {
- regulator-name = "nvvdd_sv3";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- regulator-always-on;
- };
-
- ldo1 {
- regulator-name = "nvvdd_ldo1,vddio_rx_ddr,vcore_acc";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- regulator-always-on;
- };
-
- ldo2 {
- regulator-name = "nvvdd_ldo2,avdd_pll*";
- regulator-min-microvolt = <1100000>;
- regulator-max-microvolt = <1100000>;
- regulator-always-on;
- };
-
- ldo3 {
- regulator-name = "nvvdd_ldo3,vcom_1v8b";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- regulator-always-on;
- };
-
- ldo4 {
- regulator-name = "nvvdd_ldo4,avdd_usb*";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- regulator-always-on;
- };
-
- ldo5 {
- regulator-name = "nvvdd_ldo5,vcore_mmc,avdd_lcd1,vddio_1wire";
- regulator-min-microvolt = <2800000>;
- regulator-max-microvolt = <2800000>;
- regulator-always-on;
- };
-
- hdmi_pll_reg: ldo6 {
- regulator-name = "nvvdd_ldo6,avdd_hdmi_pll";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- };
-
- ldo7 {
- regulator-name = "nvvdd_ldo7,avddio_audio";
- regulator-min-microvolt = <2800000>;
- regulator-max-microvolt = <2800000>;
- regulator-always-on;
- };
-
- ldo8 {
- regulator-name = "nvvdd_ldo8,vcom_3v0,vcore_cmps";
- regulator-min-microvolt = <3000000>;
- regulator-max-microvolt = <3000000>;
- };
-
- ldo9 {
- regulator-name = "nvvdd_ldo9,avdd_cam*";
- regulator-min-microvolt = <2800000>;
- regulator-max-microvolt = <2800000>;
- };
-
- ldo10 {
- regulator-name = "nvvdd_ldo10,avdd_usb_ic_3v0";
- regulator-min-microvolt = <3000000>;
- regulator-max-microvolt = <3000000>;
- regulator-always-on;
- };
-
- hdmi_vdd_reg: ldo11 {
- regulator-name = "nvvdd_ldo11,vddio_pex_clk,vcom_33,avdd_hdmi";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- };
-
- ldo12 {
- regulator-name = "nvvdd_ldo12,vddio_sdio";
- regulator-min-microvolt = <2800000>;
- regulator-max-microvolt = <2800000>;
- regulator-always-on;
- };
-
- ldo13 {
- regulator-name = "nvvdd_ldo13,vcore_phtn,vdd_af";
- regulator-min-microvolt = <2800000>;
- regulator-max-microvolt = <2800000>;
- };
-
- ldo14 {
- regulator-name = "nvvdd_ldo14,avdd_vdac";
- regulator-min-microvolt = <2800000>;
- regulator-max-microvolt = <2800000>;
- };
-
- ldo15 {
- regulator-name = "nvvdd_ldo15,vcore_temp,vddio_hdcp";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- };
-
- ldo16 {
- regulator-name = "nvvdd_ldo16,vdd_dbrtr";
- regulator-min-microvolt = <1300000>;
- regulator-max-microvolt = <1300000>;
- };
-
- ldo17 {
- regulator-name = "nvvdd_ldo17,vddio_mipi";
- regulator-min-microvolt = <1200000>;
- regulator-max-microvolt = <1200000>;
- };
-
- ldo18 {
- regulator-name = "nvvdd_ldo18,vddio_vi,vcore_cam*";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- };
-
- ldo19 {
- regulator-name = "nvvdd_ldo19,avdd_lcd2,vddio_lx";
- regulator-min-microvolt = <2800000>;
- regulator-max-microvolt = <2800000>;
- };
-
- ldo20 {
- regulator-name = "nvvdd_ldo20,vddio_ddr_1v2,vddio_hsic,vcom_1v2";
- regulator-min-microvolt = <1200000>;
- regulator-max-microvolt = <1200000>;
- regulator-always-on;
- };
-
- out5v {
- regulator-name = "usb0_vbus_reg";
- };
-
- out33v {
- regulator-name = "pmu_out3v3";
- };
-
- bbat {
- regulator-name = "pmu_bbat";
- regulator-min-microvolt = <2400000>;
- regulator-max-microvolt = <2400000>;
- regulator-always-on;
- };
-
- sdby {
- regulator-name = "vdd_aon";
- regulator-always-on;
- };
-
- vrtc {
- regulator-name = "vrtc,pmu_vccadc";
- regulator-always-on;
- };
- };
- };
- };
-
- kbc@7000e200 {
- status = "okay";
- nvidia,debounce-delay-ms = <20>;
- nvidia,repeat-delay-ms = <160>;
- nvidia,kbc-row-pins = <0 1 2>;
- nvidia,kbc-col-pins = <16 17>;
- wakeup-source;
- linux,keymap = <MATRIX_KEY(0x00, 0x00, KEY_POWER)
- MATRIX_KEY(0x01, 0x00, KEY_HOME)
- MATRIX_KEY(0x01, 0x01, KEY_BACK)
- MATRIX_KEY(0x02, 0x01, KEY_MENU)>;
- };
-
- pmc@7000e400 {
- nvidia,invert-interrupt;
- nvidia,suspend-mode = <1>;
- nvidia,cpu-pwr-good-time = <2000>;
- nvidia,cpu-pwr-off-time = <1000>;
- nvidia,core-pwr-good-time = <0 3845>;
- nvidia,core-pwr-off-time = <93727>;
- nvidia,core-power-req-active-high;
- nvidia,sys-clock-req-active-high;
- nvidia,combined-power-req;
- };
-
- usb@c5000000 {
- status = "okay";
- };
-
- usb-phy@c5000000 {
- status = "okay";
- vbus-supply = <&vbus1_reg>;
- };
-
- usb@c5008000 {
- status = "okay";
- };
-
- usb-phy@c5008000 {
- status = "okay";
- vbus-supply = <&vbus3_reg>;
- };
-
- sdhci@c8000400 {
- status = "okay";
- cd-gpios = <&gpio TEGRA_GPIO(I, 5) GPIO_ACTIVE_LOW>;
- wp-gpios = <&gpio TEGRA_GPIO(V, 5) GPIO_ACTIVE_HIGH>;
- bus-width = <8>;
- };
-
- sdhci@c8000600 {
- status = "okay";
- bus-width = <8>;
- non-removable;
- };
-
- clocks {
- compatible = "simple-bus";
- #address-cells = <1>;
- #size-cells = <0>;
-
- clk32k_in: clock@0 {
- compatible = "fixed-clock";
- reg = <0>;
- #clock-cells = <0>;
- clock-frequency = <32768>;
- };
- };
-
- regulators {
- compatible = "simple-bus";
- #address-cells = <1>;
- #size-cells = <0>;
-
- usb0_vbus_reg: regulator@0 {
- compatible = "regulator-fixed";
- reg = <0>;
- regulator-name = "usb0_vbus";
- regulator-min-microvolt = <5000000>;
- regulator-max-microvolt = <5000000>;
- regulator-always-on;
- };
-
- vbus1_reg: regulator@2 {
- compatible = "regulator-fixed";
- reg = <2>;
- regulator-name = "vbus1";
- regulator-min-microvolt = <5000000>;
- regulator-max-microvolt = <5000000>;
- enable-active-high;
- gpio = <&tca6416 0 0>; /* GPIO_PMU0 */
- regulator-always-on;
- regulator-boot-on;
- };
-
- vbus3_reg: regulator@3 {
- compatible = "regulator-fixed";
- reg = <3>;
- regulator-name = "vbus3";
- regulator-min-microvolt = <5000000>;
- regulator-max-microvolt = <5000000>;
- enable-active-high;
- gpio = <&tca6416 1 0>; /* GPIO_PMU1 */
- regulator-always-on;
- regulator-boot-on;
- };
- };
-
- sound {
- compatible = "nvidia,tegra-audio-wm8753-whistler",
- "nvidia,tegra-audio-wm8753";
- nvidia,model = "NVIDIA Tegra Whistler";
-
- nvidia,audio-routing =
- "Headphone Jack", "LOUT1",
- "Headphone Jack", "ROUT1",
- "MIC2", "Mic Jack",
- "MIC2N", "Mic Jack";
-
- nvidia,i2s-controller = <&tegra_i2s1>;
- nvidia,audio-codec = <&codec>;
-
- clocks = <&tegra_car TEGRA20_CLK_PLL_A>,
- <&tegra_car TEGRA20_CLK_PLL_A_OUT0>,
- <&tegra_car TEGRA20_CLK_CDEV1>;
- clock-names = "pll_a", "pll_a_out0", "mclk";
- };
-};
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index e8807503f87c..7c85f97f72ea 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -586,7 +586,7 @@
reset-names = "fuse";
};
- pcie-controller@80003000 {
+ pcie@80003000 {
compatible = "nvidia,tegra20-pcie";
device_type = "pci";
reg = <0x80003000 0x00000800 /* PADS registers */
@@ -625,6 +625,7 @@
device_type = "pci";
assigned-addresses = <0x82000800 0 0x80000000 0 0x1000>;
reg = <0x000800 0 0 0 0>;
+ bus-range = <0x00 0xff>;
status = "disabled";
#address-cells = <3>;
@@ -638,6 +639,7 @@
device_type = "pci";
assigned-addresses = <0x82001000 0 0x80001000 0 0x1000>;
reg = <0x001000 0 0 0 0>;
+ bus-range = <0x00 0xff>;
status = "disabled";
#address-cells = <3>;
diff --git a/arch/arm/boot/dts/tegra30-apalis-eval.dts b/arch/arm/boot/dts/tegra30-apalis-eval.dts
index 99a69457dbf5..fc530e4a96c4 100644
--- a/arch/arm/boot/dts/tegra30-apalis-eval.dts
+++ b/arch/arm/boot/dts/tegra30-apalis-eval.dts
@@ -21,7 +21,7 @@
stdout-path = "serial0:115200n8";
};
- pcie-controller@00003000 {
+ pcie@3000 {
status = "okay";
pci@1,0 {
diff --git a/arch/arm/boot/dts/tegra30-apalis.dtsi b/arch/arm/boot/dts/tegra30-apalis.dtsi
index f6c7c3e958ac..7a6a1a014603 100644
--- a/arch/arm/boot/dts/tegra30-apalis.dtsi
+++ b/arch/arm/boot/dts/tegra30-apalis.dtsi
@@ -9,7 +9,7 @@
model = "Toradex Apalis T30";
compatible = "toradex,apalis_t30", "nvidia,tegra30";
- pcie-controller@00003000 {
+ pcie@3000 {
avdd-pexa-supply = <&vdd2_reg>;
vdd-pexa-supply = <&vdd2_reg>;
avdd-pexb-supply = <&vdd2_reg>;
diff --git a/arch/arm/boot/dts/tegra30-beaver.dts b/arch/arm/boot/dts/tegra30-beaver.dts
index 0350002849d5..3e104ddeb220 100644
--- a/arch/arm/boot/dts/tegra30-beaver.dts
+++ b/arch/arm/boot/dts/tegra30-beaver.dts
@@ -20,7 +20,7 @@
reg = <0x80000000 0x7ff00000>;
};
- pcie-controller@00003000 {
+ pcie@3000 {
status = "okay";
avdd-pexa-supply = <&ldo1_reg>;
@@ -1927,6 +1927,16 @@
non-removable;
};
+ usb@7d000000 {
+ compatible = "nvidia,tegra30-udc";
+ status = "okay";
+ dr_mode = "peripheral";
+ };
+
+ usb-phy@7d000000 {
+ status = "okay";
+ };
+
usb@7d004000 {
status = "okay";
};
diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi b/arch/arm/boot/dts/tegra30-cardhu.dtsi
index f11012bb58cc..83dc14a9b353 100644
--- a/arch/arm/boot/dts/tegra30-cardhu.dtsi
+++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi
@@ -43,7 +43,7 @@
reg = <0x80000000 0x40000000>;
};
- pcie-controller@00003000 {
+ pcie@3000 {
status = "okay";
/* AVDD_PEXA and VDD_PEXA inputs are grounded on Cardhu. */
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index bbb1c002e7f1..13960fda7471 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -10,7 +10,7 @@
compatible = "nvidia,tegra30";
interrupt-parent = <&lic>;
- pcie-controller@00003000 {
+ pcie@3000 {
compatible = "nvidia,tegra30-pcie";
device_type = "pci";
reg = <0x00003000 0x00000800 /* PADS registers */
@@ -51,6 +51,7 @@
device_type = "pci";
assigned-addresses = <0x82000800 0 0x00000000 0 0x1000>;
reg = <0x000800 0 0 0 0>;
+ bus-range = <0x00 0xff>;
status = "disabled";
#address-cells = <3>;
@@ -64,6 +65,7 @@
device_type = "pci";
assigned-addresses = <0x82001000 0 0x00001000 0 0x1000>;
reg = <0x001000 0 0 0 0>;
+ bus-range = <0x00 0xff>;
status = "disabled";
#address-cells = <3>;
@@ -77,6 +79,7 @@
device_type = "pci";
assigned-addresses = <0x82001800 0 0x00004000 0 0x1000>;
reg = <0x001800 0 0 0 0>;
+ bus-range = <0x00 0xff>;
status = "disabled";
#address-cells = <3>;
diff --git a/arch/arm/boot/dts/tny_a9260_common.dtsi b/arch/arm/boot/dts/tny_a9260_common.dtsi
index f9dc463b9e48..5d83df4675a1 100644
--- a/arch/arm/boot/dts/tny_a9260_common.dtsi
+++ b/arch/arm/boot/dts/tny_a9260_common.dtsi
@@ -32,50 +32,69 @@
};
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "soft";
- nand-on-flash-bbt;
+ ebi: ebi@10000000 {
status = "okay";
- at91bootstrap@0 {
- label = "at91bootstrap";
- reg = <0x0 0x20000>;
- };
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_cs &pinctrl_nand_rb>;
+ pinctrl-names = "default";
- barebox@20000 {
- label = "barebox";
- reg = <0x20000 0x40000>;
- };
+ nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ rb-gpios = <&pioC 13 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&pioC 14 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "soft";
+ nand-on-flash-bbt;
+ label = "atmel_nand";
- bareboxenv@60000 {
- label = "bareboxenv";
- reg = <0x60000 0x20000>;
- };
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
- bareboxenv2@80000 {
- label = "bareboxenv2";
- reg = <0x80000 0x20000>;
- };
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x20000>;
+ };
- oftree@80000 {
- label = "oftree";
- reg = <0xa0000 0x20000>;
- };
+ barebox@20000 {
+ label = "barebox";
+ reg = <0x20000 0x40000>;
+ };
- kernel@a0000 {
- label = "kernel";
- reg = <0xc0000 0x400000>;
- };
+ bareboxenv@60000 {
+ label = "bareboxenv";
+ reg = <0x60000 0x20000>;
+ };
- rootfs@4a0000 {
- label = "rootfs";
- reg = <0x4c0000 0x7800000>;
- };
+ bareboxenv2@80000 {
+ label = "bareboxenv2";
+ reg = <0x80000 0x20000>;
+ };
+
+ oftree@80000 {
+ label = "oftree";
+ reg = <0xa0000 0x20000>;
+ };
+
+ kernel@a0000 {
+ label = "kernel";
+ reg = <0xc0000 0x400000>;
+ };
+
+ rootfs@4a0000 {
+ label = "rootfs";
+ reg = <0x4c0000 0x7800000>;
+ };
- data@7ca0000 {
- label = "data";
- reg = <0x7cc0000 0x8340000>;
+ data@7ca0000 {
+ label = "data";
+ reg = <0x7cc0000 0x8340000>;
+ };
+ };
+ };
};
};
};
diff --git a/arch/arm/boot/dts/tny_a9263.dts b/arch/arm/boot/dts/tny_a9263.dts
index 9161cd9889b4..8cf0a9e08571 100644
--- a/arch/arm/boot/dts/tny_a9263.dts
+++ b/arch/arm/boot/dts/tny_a9263.dts
@@ -42,50 +42,69 @@
};
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "soft";
- nand-on-flash-bbt;
+ ebi0: ebi@10000000 {
status = "okay";
- at91bootstrap@0 {
- label = "at91bootstrap";
- reg = <0x0 0x20000>;
- };
-
- barebox@20000 {
- label = "barebox";
- reg = <0x20000 0x40000>;
- };
-
- bareboxenv@60000 {
- label = "bareboxenv";
- reg = <0x60000 0x20000>;
- };
-
- bareboxenv2@80000 {
- label = "bareboxenv2";
- reg = <0x80000 0x20000>;
- };
-
- oftree@80000 {
- label = "oftree";
- reg = <0xa0000 0x20000>;
- };
-
- kernel@a0000 {
- label = "kernel";
- reg = <0xc0000 0x400000>;
- };
-
- rootfs@4a0000 {
- label = "rootfs";
- reg = <0x4c0000 0x7800000>;
- };
-
- data@7ca0000 {
- label = "data";
- reg = <0x7cc0000 0x8340000>;
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_cs &pinctrl_nand_rb>;
+ pinctrl-names = "default";
+
+ nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ rb-gpios = <&pioA 22 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&pioA 15 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "soft";
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x20000>;
+ };
+
+ barebox@20000 {
+ label = "barebox";
+ reg = <0x20000 0x40000>;
+ };
+
+ bareboxenv@60000 {
+ label = "bareboxenv";
+ reg = <0x60000 0x20000>;
+ };
+
+ bareboxenv2@80000 {
+ label = "bareboxenv2";
+ reg = <0x80000 0x20000>;
+ };
+
+ oftree@80000 {
+ label = "oftree";
+ reg = <0xa0000 0x20000>;
+ };
+
+ kernel@a0000 {
+ label = "kernel";
+ reg = <0xc0000 0x400000>;
+ };
+
+ rootfs@4a0000 {
+ label = "rootfs";
+ reg = <0x4c0000 0x7800000>;
+ };
+
+ data@7ca0000 {
+ label = "data";
+ reg = <0x7cc0000 0x8340000>;
+ };
+ };
+ };
};
};
};
diff --git a/arch/arm/boot/dts/tps65217.dtsi b/arch/arm/boot/dts/tps65217.dtsi
index 02de56b55823..399baaa0a2ab 100644
--- a/arch/arm/boot/dts/tps65217.dtsi
+++ b/arch/arm/boot/dts/tps65217.dtsi
@@ -18,11 +18,14 @@
charger {
compatible = "ti,tps65217-charger";
+ interrupts = <0>, <1>;
+ interrupt-names = "USB", "AC";
status = "disabled";
};
pwrbutton {
compatible = "ti,tps65217-pwrbutton";
+ interrupts = <2>;
status = "disabled";
};
diff --git a/arch/arm/boot/dts/twl4030.dtsi b/arch/arm/boot/dts/twl4030.dtsi
index 36ae9160b558..16533b62b0a2 100644
--- a/arch/arm/boot/dts/twl4030.dtsi
+++ b/arch/arm/boot/dts/twl4030.dtsi
@@ -23,6 +23,8 @@
compatible = "ti,twl4030-bci";
interrupts = <9>, <2>;
bci3v1-supply = <&vusb3v1>;
+ io-channels = <&twl_madc 11>;
+ io-channel-names = "vac";
};
watchdog {
diff --git a/arch/arm/boot/dts/uniphier-ld4-ref.dts b/arch/arm/boot/dts/uniphier-ld4-ref.dts
index e0da4ee21c21..b3aaab354f3e 100644
--- a/arch/arm/boot/dts/uniphier-ld4-ref.dts
+++ b/arch/arm/boot/dts/uniphier-ld4-ref.dts
@@ -4,49 +4,13 @@
* Copyright (C) 2015-2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
/dts-v1/;
-/include/ "uniphier-ld4.dtsi"
-/include/ "uniphier-ref-daughter.dtsi"
-/include/ "uniphier-support-card.dtsi"
+#include "uniphier-ld4.dtsi"
+#include "uniphier-ref-daughter.dtsi"
+#include "uniphier-support-card.dtsi"
/ {
model = "UniPhier LD4 Reference Board";
@@ -100,3 +64,7 @@
&usb1 {
status = "okay";
};
+
+&nand {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/uniphier-ld4.dtsi b/arch/arm/boot/dts/uniphier-ld4.dtsi
index 4f5fe15eaee2..79183db5b386 100644
--- a/arch/arm/boot/dts/uniphier-ld4.dtsi
+++ b/arch/arm/boot/dts/uniphier-ld4.dtsi
@@ -4,43 +4,7 @@
* Copyright (C) 2015-2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
/ {
@@ -201,7 +165,7 @@
pinctrl-0 = <&pinctrl_system_bus>;
};
- smpctrl@59800000 {
+ smpctrl@59801000 {
compatible = "socionext,uniphier-smpctrl";
reg = <0x59801000 0x400>;
};
@@ -306,6 +270,13 @@
interrupt-controller;
};
+ aidet: aidet@61830000 {
+ compatible = "socionext,uniphier-ld4-aidet";
+ reg = <0x61830000 0x200>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
sysctrl@61840000 {
compatible = "socionext,uniphier-ld4-sysctrl",
"simple-mfd", "syscon";
@@ -321,7 +292,18 @@
#reset-cells = <1>;
};
};
+
+ nand: nand@68000000 {
+ compatible = "socionext,uniphier-denali-nand-v5a";
+ status = "disabled";
+ reg-names = "nand_data", "denali_reg";
+ reg = <0x68000000 0x20>, <0x68100000 0x1000>;
+ interrupts = <0 65 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_nand2cs>;
+ clocks = <&sys_clk 2>;
+ };
};
};
-/include/ "uniphier-pinctrl.dtsi"
+#include "uniphier-pinctrl.dtsi"
diff --git a/arch/arm/boot/dts/uniphier-ld6b-ref.dts b/arch/arm/boot/dts/uniphier-ld6b-ref.dts
index a397a8811c78..2188d114d79b 100644
--- a/arch/arm/boot/dts/uniphier-ld6b-ref.dts
+++ b/arch/arm/boot/dts/uniphier-ld6b-ref.dts
@@ -4,49 +4,13 @@
* Copyright (C) 2015-2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
/dts-v1/;
-/include/ "uniphier-ld6b.dtsi"
-/include/ "uniphier-ref-daughter.dtsi"
-/include/ "uniphier-support-card.dtsi"
+#include "uniphier-ld6b.dtsi"
+#include "uniphier-ref-daughter.dtsi"
+#include "uniphier-support-card.dtsi"
/ {
model = "UniPhier LD6b Reference Board";
@@ -94,3 +58,7 @@
&i2c0 {
status = "okay";
};
+
+&nand {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/uniphier-ld6b.dtsi b/arch/arm/boot/dts/uniphier-ld6b.dtsi
index 905c77d499eb..9a7b25cc8233 100644
--- a/arch/arm/boot/dts/uniphier-ld6b.dtsi
+++ b/arch/arm/boot/dts/uniphier-ld6b.dtsi
@@ -4,43 +4,7 @@
* Copyright (C) 2015-2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
/*
@@ -48,7 +12,7 @@
* The D-chip (digital chip) is the same as the PXs2 die.
* Reuse the PXs2 device tree with some properties overridden.
*/
-/include/ "uniphier-pxs2.dtsi"
+#include "uniphier-pxs2.dtsi"
/ {
compatible = "socionext,uniphier-ld6b";
diff --git a/arch/arm/boot/dts/uniphier-pinctrl.dtsi b/arch/arm/boot/dts/uniphier-pinctrl.dtsi
index 246f35ffb638..be82cddc4072 100644
--- a/arch/arm/boot/dts/uniphier-pinctrl.dtsi
+++ b/arch/arm/boot/dts/uniphier-pinctrl.dtsi
@@ -4,51 +4,35 @@
* Copyright (C) 2015-2017 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
&pinctrl {
+ pinctrl_aout: aout_grp {
+ groups = "aout";
+ function = "aout";
+ };
+
pinctrl_emmc: emmc_grp {
groups = "emmc", "emmc_dat8";
function = "emmc";
};
+ pinctrl_ether_mii: ether_mii_grp {
+ groups = "ether_mii";
+ function = "ether_mii";
+ };
+
+ pinctrl_ether_rgmii: ether_rgmii_grp {
+ groups = "ether_rgmii";
+ function = "ether_rgmii";
+ };
+
+ pinctrl_ether_rmii: ether_rmii_grp {
+ groups = "ether_rmii";
+ function = "ether_rmii";
+ };
+
pinctrl_i2c0: i2c0_grp {
groups = "i2c0";
function = "i2c0";
diff --git a/arch/arm/boot/dts/uniphier-pro4-ace.dts b/arch/arm/boot/dts/uniphier-pro4-ace.dts
index fefc89149234..089419cee273 100644
--- a/arch/arm/boot/dts/uniphier-pro4-ace.dts
+++ b/arch/arm/boot/dts/uniphier-pro4-ace.dts
@@ -4,47 +4,11 @@
* Copyright (C) 2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
/dts-v1/;
-/include/ "uniphier-pro4.dtsi"
+#include "uniphier-pro4.dtsi"
/ {
model = "UniPhier Pro4 Ace Board";
@@ -88,7 +52,7 @@
status = "okay";
eeprom@54 {
- compatible = "st,24c64";
+ compatible = "st,24c64", "atmel,24c64";
reg = <0x54>;
pagesize = <32>;
};
diff --git a/arch/arm/boot/dts/uniphier-pro4-ref.dts b/arch/arm/boot/dts/uniphier-pro4-ref.dts
index 6077e634d14a..903df6348e77 100644
--- a/arch/arm/boot/dts/uniphier-pro4-ref.dts
+++ b/arch/arm/boot/dts/uniphier-pro4-ref.dts
@@ -4,49 +4,13 @@
* Copyright (C) 2015-2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
/dts-v1/;
-/include/ "uniphier-pro4.dtsi"
-/include/ "uniphier-ref-daughter.dtsi"
-/include/ "uniphier-support-card.dtsi"
+#include "uniphier-pro4.dtsi"
+#include "uniphier-ref-daughter.dtsi"
+#include "uniphier-support-card.dtsi"
/ {
model = "UniPhier Pro4 Reference Board";
@@ -102,3 +66,7 @@
&usb3 {
status = "okay";
};
+
+&nand {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/uniphier-pro4-sanji.dts b/arch/arm/boot/dts/uniphier-pro4-sanji.dts
index 6c63c8bad825..adef212b45b2 100644
--- a/arch/arm/boot/dts/uniphier-pro4-sanji.dts
+++ b/arch/arm/boot/dts/uniphier-pro4-sanji.dts
@@ -4,47 +4,11 @@
* Copyright (C) 2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
/dts-v1/;
-/include/ "uniphier-pro4.dtsi"
+#include "uniphier-pro4.dtsi"
/ {
model = "UniPhier Pro4 Sanji Board";
@@ -83,7 +47,7 @@
status = "okay";
eeprom@54 {
- compatible = "st,24c64";
+ compatible = "st,24c64", "atmel,24c64";
reg = <0x54>;
pagesize = <32>;
};
diff --git a/arch/arm/boot/dts/uniphier-pro4.dtsi b/arch/arm/boot/dts/uniphier-pro4.dtsi
index 794a85a7068b..b3dbbd9b6e39 100644
--- a/arch/arm/boot/dts/uniphier-pro4.dtsi
+++ b/arch/arm/boot/dts/uniphier-pro4.dtsi
@@ -4,43 +4,7 @@
* Copyright (C) 2015-2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
/ {
@@ -233,7 +197,7 @@
pinctrl-0 = <&pinctrl_system_bus>;
};
- smpctrl@59800000 {
+ smpctrl@59801000 {
compatible = "socionext,uniphier-smpctrl";
reg = <0x59801000 0x400>;
};
@@ -304,6 +268,13 @@
};
};
+ aidet: aidet@5fc20000 {
+ compatible = "socionext,uniphier-pro4-aidet";
+ reg = <0x5fc20000 0x200>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
timer@60000200 {
compatible = "arm,cortex-a9-global-timer";
reg = <0x60000200 0x20>;
@@ -341,7 +312,18 @@
#reset-cells = <1>;
};
};
+
+ nand: nand@68000000 {
+ compatible = "socionext,uniphier-denali-nand-v5a";
+ status = "disabled";
+ reg-names = "nand_data", "denali_reg";
+ reg = <0x68000000 0x20>, <0x68100000 0x1000>;
+ interrupts = <0 65 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_nand>;
+ clocks = <&sys_clk 2>;
+ };
};
};
-/include/ "uniphier-pinctrl.dtsi"
+#include "uniphier-pinctrl.dtsi"
diff --git a/arch/arm/boot/dts/uniphier-pro5.dtsi b/arch/arm/boot/dts/uniphier-pro5.dtsi
index df07b555cbed..b026bcd42a06 100644
--- a/arch/arm/boot/dts/uniphier-pro5.dtsi
+++ b/arch/arm/boot/dts/uniphier-pro5.dtsi
@@ -4,43 +4,7 @@
* Copyright (C) 2015-2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
/ {
@@ -77,67 +41,67 @@
compatible = "operating-points-v2";
opp-shared;
- opp@100000000 {
+ opp-100000000 {
opp-hz = /bits/ 64 <100000000>;
clock-latency-ns = <300>;
};
- opp@116667000 {
+ opp-116667000 {
opp-hz = /bits/ 64 <116667000>;
clock-latency-ns = <300>;
};
- opp@150000000 {
+ opp-150000000 {
opp-hz = /bits/ 64 <150000000>;
clock-latency-ns = <300>;
};
- opp@175000000 {
+ opp-175000000 {
opp-hz = /bits/ 64 <175000000>;
clock-latency-ns = <300>;
};
- opp@200000000 {
+ opp-200000000 {
opp-hz = /bits/ 64 <200000000>;
clock-latency-ns = <300>;
};
- opp@233334000 {
+ opp-233334000 {
opp-hz = /bits/ 64 <233334000>;
clock-latency-ns = <300>;
};
- opp@300000000 {
+ opp-300000000 {
opp-hz = /bits/ 64 <300000000>;
clock-latency-ns = <300>;
};
- opp@350000000 {
+ opp-350000000 {
opp-hz = /bits/ 64 <350000000>;
clock-latency-ns = <300>;
};
- opp@400000000 {
+ opp-400000000 {
opp-hz = /bits/ 64 <400000000>;
clock-latency-ns = <300>;
};
- opp@466667000 {
+ opp-466667000 {
opp-hz = /bits/ 64 <466667000>;
clock-latency-ns = <300>;
};
- opp@600000000 {
+ opp-600000000 {
opp-hz = /bits/ 64 <600000000>;
clock-latency-ns = <300>;
};
- opp@700000000 {
+ opp-700000000 {
opp-hz = /bits/ 64 <700000000>;
clock-latency-ns = <300>;
};
- opp@800000000 {
+ opp-800000000 {
opp-hz = /bits/ 64 <800000000>;
clock-latency-ns = <300>;
};
- opp@933334000 {
+ opp-933334000 {
opp-hz = /bits/ 64 <933334000>;
clock-latency-ns = <300>;
};
- opp@1200000000 {
+ opp-1200000000 {
opp-hz = /bits/ 64 <1200000000>;
clock-latency-ns = <300>;
};
- opp@1400000000 {
+ opp-1400000000 {
opp-hz = /bits/ 64 <1400000000>;
clock-latency-ns = <300>;
};
@@ -320,7 +284,7 @@
pinctrl-0 = <&pinctrl_system_bus>;
};
- smpctrl@59800000 {
+ smpctrl@59801000 {
compatible = "socionext,uniphier-smpctrl";
reg = <0x59801000 0x400>;
};
@@ -328,7 +292,7 @@
sdctrl@59810000 {
compatible = "socionext,uniphier-pro5-sdctrl",
"simple-mfd", "syscon";
- reg = <0x59810000 0x800>;
+ reg = <0x59810000 0x400>;
sd_clk: clock {
compatible = "socionext,uniphier-pro5-sd-clock";
@@ -367,6 +331,13 @@
};
};
+ aidet: aidet@5fc20000 {
+ compatible = "socionext,uniphier-pro5-aidet";
+ reg = <0x5fc20000 0x200>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
timer@60000200 {
compatible = "arm,cortex-a9-global-timer";
reg = <0x60000200 0x20>;
@@ -404,7 +375,18 @@
#reset-cells = <1>;
};
};
+
+ nand: nand@68000000 {
+ compatible = "socionext,uniphier-denali-nand-v5b";
+ status = "disabled";
+ reg-names = "nand_data", "denali_reg";
+ reg = <0x68000000 0x20>, <0x68100000 0x1000>;
+ interrupts = <0 65 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_nand2cs>;
+ clocks = <&sys_clk 2>;
+ };
};
};
-/include/ "uniphier-pinctrl.dtsi"
+#include "uniphier-pinctrl.dtsi"
diff --git a/arch/arm/boot/dts/uniphier-pxs2-gentil.dts b/arch/arm/boot/dts/uniphier-pxs2-gentil.dts
index cccc86658d20..7dfae2667f50 100644
--- a/arch/arm/boot/dts/uniphier-pxs2-gentil.dts
+++ b/arch/arm/boot/dts/uniphier-pxs2-gentil.dts
@@ -4,47 +4,11 @@
* Copyright (C) 2015-2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
/dts-v1/;
-/include/ "uniphier-pxs2.dtsi"
+#include "uniphier-pxs2.dtsi"
/ {
model = "UniPhier PXs2 Gentil Board";
@@ -80,7 +44,7 @@
status = "okay";
eeprom@54 {
- compatible = "st,24c64";
+ compatible = "st,24c64", "atmel,24c64";
reg = <0x54>;
pagesize = <32>;
};
diff --git a/arch/arm/boot/dts/uniphier-pxs2-vodka.dts b/arch/arm/boot/dts/uniphier-pxs2-vodka.dts
index 803a39aa39d0..0cf615463a82 100644
--- a/arch/arm/boot/dts/uniphier-pxs2-vodka.dts
+++ b/arch/arm/boot/dts/uniphier-pxs2-vodka.dts
@@ -4,47 +4,11 @@
* Copyright (C) 2015-2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
/dts-v1/;
-/include/ "uniphier-pxs2.dtsi"
+#include "uniphier-pxs2.dtsi"
/ {
model = "UniPhier PXs2 Vodka Board";
diff --git a/arch/arm/boot/dts/uniphier-pxs2.dtsi b/arch/arm/boot/dts/uniphier-pxs2.dtsi
index 58c3e2f35706..90b020c95083 100644
--- a/arch/arm/boot/dts/uniphier-pxs2.dtsi
+++ b/arch/arm/boot/dts/uniphier-pxs2.dtsi
@@ -4,43 +4,7 @@
* Copyright (C) 2015-2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
/ {
@@ -97,35 +61,35 @@
compatible = "operating-points-v2";
opp-shared;
- opp@100000000 {
+ opp-100000000 {
opp-hz = /bits/ 64 <100000000>;
clock-latency-ns = <300>;
};
- opp@150000000 {
+ opp-150000000 {
opp-hz = /bits/ 64 <150000000>;
clock-latency-ns = <300>;
};
- opp@200000000 {
+ opp-200000000 {
opp-hz = /bits/ 64 <200000000>;
clock-latency-ns = <300>;
};
- opp@300000000 {
+ opp-300000000 {
opp-hz = /bits/ 64 <300000000>;
clock-latency-ns = <300>;
};
- opp@400000000 {
+ opp-400000000 {
opp-hz = /bits/ 64 <400000000>;
clock-latency-ns = <300>;
};
- opp@600000000 {
+ opp-600000000 {
opp-hz = /bits/ 64 <600000000>;
clock-latency-ns = <300>;
};
- opp@800000000 {
+ opp-800000000 {
opp-hz = /bits/ 64 <800000000>;
clock-latency-ns = <300>;
};
- opp@1200000000 {
+ opp-1200000000 {
opp-hz = /bits/ 64 <1200000000>;
clock-latency-ns = <300>;
};
@@ -304,7 +268,7 @@
pinctrl-0 = <&pinctrl_system_bus>;
};
- smpctrl@59800000 {
+ smpctrl@59801000 {
compatible = "socionext,uniphier-smpctrl";
reg = <0x59801000 0x400>;
};
@@ -312,7 +276,7 @@
sdctrl@59810000 {
compatible = "socionext,uniphier-pxs2-sdctrl",
"simple-mfd", "syscon";
- reg = <0x59810000 0x800>;
+ reg = <0x59810000 0x400>;
sd_clk: clock {
compatible = "socionext,uniphier-pxs2-sd-clock";
@@ -351,6 +315,13 @@
};
};
+ aidet: aidet@5fc20000 {
+ compatible = "socionext,uniphier-pxs2-aidet";
+ reg = <0x5fc20000 0x200>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
timer@60000200 {
compatible = "arm,cortex-a9-global-timer";
reg = <0x60000200 0x20>;
@@ -388,7 +359,18 @@
#reset-cells = <1>;
};
};
+
+ nand: nand@68000000 {
+ compatible = "socionext,uniphier-denali-nand-v5b";
+ status = "disabled";
+ reg-names = "nand_data", "denali_reg";
+ reg = <0x68000000 0x20>, <0x68100000 0x1000>;
+ interrupts = <0 65 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_nand2cs>;
+ clocks = <&sys_clk 2>;
+ };
};
};
-/include/ "uniphier-pinctrl.dtsi"
+#include "uniphier-pinctrl.dtsi"
diff --git a/arch/arm/boot/dts/uniphier-ref-daughter.dtsi b/arch/arm/boot/dts/uniphier-ref-daughter.dtsi
index c62ae1a81f47..7a1c29b558d5 100644
--- a/arch/arm/boot/dts/uniphier-ref-daughter.dtsi
+++ b/arch/arm/boot/dts/uniphier-ref-daughter.dtsi
@@ -4,43 +4,7 @@
* Copyright (C) 2015-2017 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
&i2c0 {
diff --git a/arch/arm/boot/dts/uniphier-sld3-ref.dts b/arch/arm/boot/dts/uniphier-sld3-ref.dts
deleted file mode 100644
index eb63dcca92b5..000000000000
--- a/arch/arm/boot/dts/uniphier-sld3-ref.dts
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * Device Tree Source for UniPhier sLD3 Reference Board
- *
- * Copyright (C) 2015-2016 Socionext Inc.
- * Author: Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/dts-v1/;
-/include/ "uniphier-sld3.dtsi"
-/include/ "uniphier-ref-daughter.dtsi"
-/include/ "uniphier-support-card.dtsi"
-
-/ {
- model = "UniPhier sLD3 Reference Board";
- compatible = "socionext,uniphier-sld3-ref", "socionext,uniphier-sld3";
-
- chosen {
- stdout-path = "serial0:115200n8";
- };
-
- aliases {
- serial0 = &serial0;
- serial1 = &serial1;
- serial2 = &serial2;
- i2c0 = &i2c0;
- i2c1 = &i2c1;
- i2c2 = &i2c2;
- i2c3 = &i2c3;
- i2c4 = &i2c4;
- };
-
- memory@8000000 {
- device_type = "memory";
- reg = <0x80000000 0x20000000
- 0xc0000000 0x20000000>;
- };
-};
-
-&ethsc {
- interrupts = <0 49 4>;
-};
-
-&serial0 {
- status = "okay";
-};
-
-&serial1 {
- status = "okay";
-};
-
-&serial2 {
- status = "okay";
-};
-
-&i2c0 {
- status = "okay";
-};
-
-&usb0 {
- status = "okay";
-};
-
-&usb1 {
- status = "okay";
-};
-
-&usb2 {
- status = "okay";
-};
-
-&usb3 {
- status = "okay";
-};
diff --git a/arch/arm/boot/dts/uniphier-sld3.dtsi b/arch/arm/boot/dts/uniphier-sld3.dtsi
deleted file mode 100644
index 01d77edac01f..000000000000
--- a/arch/arm/boot/dts/uniphier-sld3.dtsi
+++ /dev/null
@@ -1,296 +0,0 @@
-/*
- * Device Tree Source for UniPhier sLD3 SoC
- *
- * Copyright (C) 2015-2016 Socionext Inc.
- * Author: Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/ {
- compatible = "socionext,uniphier-sld3";
- #address-cells = <1>;
- #size-cells = <1>;
-
- cpus {
- #address-cells = <1>;
- #size-cells = <0>;
-
- cpu@0 {
- device_type = "cpu";
- compatible = "arm,cortex-a9";
- reg = <0>;
- enable-method = "psci";
- next-level-cache = <&l2>;
- };
-
- cpu@1 {
- device_type = "cpu";
- compatible = "arm,cortex-a9";
- reg = <1>;
- enable-method = "psci";
- next-level-cache = <&l2>;
- };
- };
-
- psci {
- compatible = "arm,psci-0.2";
- method = "smc";
- };
-
- clocks {
- refclk: ref {
- #clock-cells = <0>;
- compatible = "fixed-clock";
- clock-frequency = <24576000>;
- };
-
- arm_timer_clk: arm_timer_clk {
- #clock-cells = <0>;
- compatible = "fixed-clock";
- clock-frequency = <50000000>;
- };
- };
-
- soc {
- compatible = "simple-bus";
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
- interrupt-parent = <&intc>;
-
- timer@20000200 {
- compatible = "arm,cortex-a9-global-timer";
- reg = <0x20000200 0x20>;
- interrupts = <1 11 0x304>;
- clocks = <&arm_timer_clk>;
- };
-
- timer@20000600 {
- compatible = "arm,cortex-a9-twd-timer";
- reg = <0x20000600 0x20>;
- interrupts = <1 13 0x304>;
- clocks = <&arm_timer_clk>;
- };
-
- intc: interrupt-controller@20001000 {
- compatible = "arm,cortex-a9-gic";
- #interrupt-cells = <3>;
- interrupt-controller;
- reg = <0x20001000 0x1000>,
- <0x20000100 0x100>;
- };
-
- l2: l2-cache@500c0000 {
- compatible = "socionext,uniphier-system-cache";
- reg = <0x500c0000 0x2000>, <0x503c0100 0x4>,
- <0x506c0000 0x400>;
- interrupts = <0 174 4>, <0 175 4>;
- cache-unified;
- cache-size = <(512 * 1024)>;
- cache-sets = <256>;
- cache-line-size = <128>;
- cache-level = <2>;
- };
-
- serial0: serial@54006800 {
- compatible = "socionext,uniphier-uart";
- status = "disabled";
- reg = <0x54006800 0x40>;
- interrupts = <0 33 4>;
- clocks = <&sys_clk 0>;
- };
-
- serial1: serial@54006900 {
- compatible = "socionext,uniphier-uart";
- status = "disabled";
- reg = <0x54006900 0x40>;
- interrupts = <0 35 4>;
- clocks = <&sys_clk 0>;
- };
-
- serial2: serial@54006a00 {
- compatible = "socionext,uniphier-uart";
- status = "disabled";
- reg = <0x54006a00 0x40>;
- interrupts = <0 37 4>;
- clocks = <&sys_clk 0>;
- };
-
- i2c0: i2c@58400000 {
- compatible = "socionext,uniphier-i2c";
- status = "disabled";
- reg = <0x58400000 0x40>;
- #address-cells = <1>;
- #size-cells = <0>;
- interrupts = <0 41 1>;
- clocks = <&sys_clk 1>;
- clock-frequency = <100000>;
- };
-
- i2c1: i2c@58480000 {
- compatible = "socionext,uniphier-i2c";
- status = "disabled";
- reg = <0x58480000 0x40>;
- #address-cells = <1>;
- #size-cells = <0>;
- interrupts = <0 42 1>;
- clocks = <&sys_clk 1>;
- clock-frequency = <100000>;
- };
-
- i2c2: i2c@58500000 {
- compatible = "socionext,uniphier-i2c";
- status = "disabled";
- reg = <0x58500000 0x40>;
- #address-cells = <1>;
- #size-cells = <0>;
- interrupts = <0 43 1>;
- clocks = <&sys_clk 1>;
- clock-frequency = <100000>;
- };
-
- i2c3: i2c@58580000 {
- compatible = "socionext,uniphier-i2c";
- status = "disabled";
- reg = <0x58580000 0x40>;
- #address-cells = <1>;
- #size-cells = <0>;
- interrupts = <0 44 1>;
- clocks = <&sys_clk 1>;
- clock-frequency = <100000>;
- };
-
- /* chip-internal connection for DMD */
- i2c4: i2c@58600000 {
- compatible = "socionext,uniphier-i2c";
- reg = <0x58600000 0x40>;
- #address-cells = <1>;
- #size-cells = <0>;
- interrupts = <0 45 1>;
- clocks = <&sys_clk 1>;
- clock-frequency = <400000>;
- };
-
- system_bus: system-bus@58c00000 {
- compatible = "socionext,uniphier-system-bus";
- status = "disabled";
- reg = <0x58c00000 0x400>;
- #address-cells = <2>;
- #size-cells = <1>;
- };
-
- smpctrl@59800000 {
- compatible = "socionext,uniphier-smpctrl";
- reg = <0x59801000 0x400>;
- };
-
- mioctrl@59810000 {
- compatible = "socionext,uniphier-sld3-mioctrl",
- "simple-mfd", "syscon";
- reg = <0x59810000 0x800>;
-
- mio_clk: clock {
- compatible = "socionext,uniphier-sld3-mio-clock";
- #clock-cells = <1>;
- };
-
- mio_rst: reset {
- compatible = "socionext,uniphier-sld3-mio-reset";
- #reset-cells = <1>;
- };
- };
-
- usb0: usb@5a800100 {
- compatible = "socionext,uniphier-ehci", "generic-ehci";
- status = "disabled";
- reg = <0x5a800100 0x100>;
- interrupts = <0 80 4>;
- clocks = <&mio_clk 7>, <&mio_clk 8>, <&mio_clk 12>;
- resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 8>,
- <&mio_rst 12>;
- };
-
- usb1: usb@5a810100 {
- compatible = "socionext,uniphier-ehci", "generic-ehci";
- status = "disabled";
- reg = <0x5a810100 0x100>;
- interrupts = <0 81 4>;
- clocks = <&mio_clk 7>, <&mio_clk 9>, <&mio_clk 13>;
- resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 9>,
- <&mio_rst 13>;
- };
-
- usb2: usb@5a820100 {
- compatible = "socionext,uniphier-ehci", "generic-ehci";
- status = "disabled";
- reg = <0x5a820100 0x100>;
- interrupts = <0 82 4>;
- clocks = <&mio_clk 7>, <&mio_clk 10>, <&mio_clk 14>;
- resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 10>,
- <&mio_rst 14>;
- };
-
- usb3: usb@5a830100 {
- compatible = "socionext,uniphier-ehci", "generic-ehci";
- status = "disabled";
- reg = <0x5a830100 0x100>;
- interrupts = <0 83 4>;
- clocks = <&mio_clk 7>, <&mio_clk 11>, <&mio_clk 15>;
- resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 11>,
- <&mio_rst 15>;
- };
-
- sysctrl@f1840000 {
- compatible = "socionext,uniphier-sld3-sysctrl",
- "simple-mfd", "syscon";
- reg = <0xf1840000 0x10000>;
-
- sys_clk: clock {
- compatible = "socionext,uniphier-sld3-clock";
- #clock-cells = <1>;
- };
-
- sys_rst: reset {
- compatible = "socionext,uniphier-sld3-reset";
- #reset-cells = <1>;
- };
- };
- };
-};
diff --git a/arch/arm/boot/dts/uniphier-sld8-ref.dts b/arch/arm/boot/dts/uniphier-sld8-ref.dts
index 737d276349fd..5accd3cc76e4 100644
--- a/arch/arm/boot/dts/uniphier-sld8-ref.dts
+++ b/arch/arm/boot/dts/uniphier-sld8-ref.dts
@@ -4,49 +4,13 @@
* Copyright (C) 2015-2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
/dts-v1/;
-/include/ "uniphier-sld8.dtsi"
-/include/ "uniphier-ref-daughter.dtsi"
-/include/ "uniphier-support-card.dtsi"
+#include "uniphier-sld8.dtsi"
+#include "uniphier-ref-daughter.dtsi"
+#include "uniphier-support-card.dtsi"
/ {
model = "UniPhier sLD8 Reference Board";
@@ -104,3 +68,7 @@
&usb2 {
status = "okay";
};
+
+&nand {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/uniphier-sld8.dtsi b/arch/arm/boot/dts/uniphier-sld8.dtsi
index eb06fdc04b02..b08390332971 100644
--- a/arch/arm/boot/dts/uniphier-sld8.dtsi
+++ b/arch/arm/boot/dts/uniphier-sld8.dtsi
@@ -4,43 +4,7 @@
* Copyright (C) 2015-2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
/ {
@@ -201,7 +165,7 @@
pinctrl-0 = <&pinctrl_system_bus>;
};
- smpctrl@59800000 {
+ smpctrl@59801000 {
compatible = "socionext,uniphier-smpctrl";
reg = <0x59801000 0x400>;
};
@@ -306,6 +270,13 @@
interrupt-controller;
};
+ aidet: aidet@61830000 {
+ compatible = "socionext,uniphier-sld8-aidet";
+ reg = <0x61830000 0x200>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
sysctrl@61840000 {
compatible = "socionext,uniphier-sld8-sysctrl",
"simple-mfd", "syscon";
@@ -321,7 +292,18 @@
#reset-cells = <1>;
};
};
+
+ nand: nand@68000000 {
+ compatible = "socionext,uniphier-denali-nand-v5a";
+ status = "disabled";
+ reg-names = "nand_data", "denali_reg";
+ reg = <0x68000000 0x20>, <0x68100000 0x1000>;
+ interrupts = <0 65 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_nand2cs>;
+ clocks = <&sys_clk 2>;
+ };
};
};
-/include/ "uniphier-pinctrl.dtsi"
+#include "uniphier-pinctrl.dtsi"
diff --git a/arch/arm/boot/dts/uniphier-support-card.dtsi b/arch/arm/boot/dts/uniphier-support-card.dtsi
index f61dfec2807f..6c825f192e65 100644
--- a/arch/arm/boot/dts/uniphier-support-card.dtsi
+++ b/arch/arm/boot/dts/uniphier-support-card.dtsi
@@ -4,43 +4,7 @@
* Copyright (C) 2015-2017 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
&system_bus {
@@ -53,14 +17,14 @@
#size-cells = <1>;
ranges = <0x00000000 1 0x01f00000 0x00100000>;
- ethsc: ethernet@00000000 {
+ ethsc: ethernet@0 {
compatible = "smsc,lan9118", "smsc,lan9115";
reg = <0x00000000 0x1000>;
phy-mode = "mii";
reg-io-width = <4>;
};
- serialsc: uart@000b0000 {
+ serialsc: uart@b0000 {
compatible = "ns16550a";
reg = <0x000b0000 0x20>;
clock-frequency = <12288000>;
diff --git a/arch/arm/boot/dts/usb_a9260_common.dtsi b/arch/arm/boot/dts/usb_a9260_common.dtsi
index 7514b347cdd2..34a49995eda3 100644
--- a/arch/arm/boot/dts/usb_a9260_common.dtsi
+++ b/arch/arm/boot/dts/usb_a9260_common.dtsi
@@ -34,50 +34,69 @@
};
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "soft";
- nand-on-flash-bbt;
+ ebi: ebi@10000000 {
status = "okay";
- at91bootstrap@0 {
- label = "at91bootstrap";
- reg = <0x0 0x20000>;
- };
-
- barebox@20000 {
- label = "barebox";
- reg = <0x20000 0x40000>;
- };
-
- bareboxenv@60000 {
- label = "bareboxenv";
- reg = <0x60000 0x20000>;
- };
-
- bareboxenv2@80000 {
- label = "bareboxenv2";
- reg = <0x80000 0x20000>;
- };
-
- oftree@80000 {
- label = "oftree";
- reg = <0xa0000 0x20000>;
- };
-
- kernel@a0000 {
- label = "kernel";
- reg = <0xc0000 0x400000>;
- };
-
- rootfs@4a0000 {
- label = "rootfs";
- reg = <0x4c0000 0x7800000>;
- };
-
- data@7ca0000 {
- label = "data";
- reg = <0x7cc0000 0x8340000>;
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_cs &pinctrl_nand_rb>;
+ pinctrl-names = "default";
+
+ nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ rb-gpios = <&pioC 13 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&pioC 14 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "soft";
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x20000>;
+ };
+
+ barebox@20000 {
+ label = "barebox";
+ reg = <0x20000 0x40000>;
+ };
+
+ bareboxenv@60000 {
+ label = "bareboxenv";
+ reg = <0x60000 0x20000>;
+ };
+
+ bareboxenv2@80000 {
+ label = "bareboxenv2";
+ reg = <0x80000 0x20000>;
+ };
+
+ oftree@80000 {
+ label = "oftree";
+ reg = <0xa0000 0x20000>;
+ };
+
+ kernel@a0000 {
+ label = "kernel";
+ reg = <0xc0000 0x400000>;
+ };
+
+ rootfs@4a0000 {
+ label = "rootfs";
+ reg = <0x4c0000 0x7800000>;
+ };
+
+ data@7ca0000 {
+ label = "data";
+ reg = <0x7cc0000 0x8340000>;
+ };
+ };
+ };
};
};
diff --git a/arch/arm/boot/dts/usb_a9263.dts b/arch/arm/boot/dts/usb_a9263.dts
index bfc48a272417..482381c1c962 100644
--- a/arch/arm/boot/dts/usb_a9263.dts
+++ b/arch/arm/boot/dts/usb_a9263.dts
@@ -62,50 +62,69 @@
};
};
- nand0: nand@40000000 {
- nand-bus-width = <8>;
- nand-ecc-mode = "soft";
- nand-on-flash-bbt;
+ ebi0: ebi@10000000 {
status = "okay";
- at91bootstrap@0 {
- label = "at91bootstrap";
- reg = <0x0 0x20000>;
- };
-
- barebox@20000 {
- label = "barebox";
- reg = <0x20000 0x40000>;
- };
-
- bareboxenv@60000 {
- label = "bareboxenv";
- reg = <0x60000 0x20000>;
- };
-
- bareboxenv2@80000 {
- label = "bareboxenv2";
- reg = <0x80000 0x20000>;
- };
-
- oftree@80000 {
- label = "oftree";
- reg = <0xa0000 0x20000>;
- };
-
- kernel@a0000 {
- label = "kernel";
- reg = <0xc0000 0x400000>;
- };
-
- rootfs@4a0000 {
- label = "rootfs";
- reg = <0x4c0000 0x7800000>;
- };
-
- data@7ca0000 {
- label = "data";
- reg = <0x7cc0000 0x8340000>;
+ nand_controller: nand-controller {
+ status = "okay";
+ pinctrl-0 = <&pinctrl_nand_cs &pinctrl_nand_rb>;
+ pinctrl-names = "default";
+
+ nand@3 {
+ reg = <0x3 0x0 0x800000>;
+ rb-gpios = <&pioA 22 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&pioA 15 GPIO_ACTIVE_HIGH>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "soft";
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x20000>;
+ };
+
+ barebox@20000 {
+ label = "barebox";
+ reg = <0x20000 0x40000>;
+ };
+
+ bareboxenv@60000 {
+ label = "bareboxenv";
+ reg = <0x60000 0x20000>;
+ };
+
+ bareboxenv2@80000 {
+ label = "bareboxenv2";
+ reg = <0x80000 0x20000>;
+ };
+
+ oftree@80000 {
+ label = "oftree";
+ reg = <0xa0000 0x20000>;
+ };
+
+ kernel@a0000 {
+ label = "kernel";
+ reg = <0xc0000 0x400000>;
+ };
+
+ rootfs@4a0000 {
+ label = "rootfs";
+ reg = <0x4c0000 0x7800000>;
+ };
+
+ data@7ca0000 {
+ label = "data";
+ reg = <0x7cc0000 0x8340000>;
+ };
+ };
+ };
};
};
diff --git a/arch/arm/boot/dts/versatile-pb.dts b/arch/arm/boot/dts/versatile-pb.dts
index 06e2331f666d..9abe26028c8b 100644
--- a/arch/arm/boot/dts/versatile-pb.dts
+++ b/arch/arm/boot/dts/versatile-pb.dts
@@ -39,7 +39,7 @@
clock-names = "apb_pclk";
};
- pci-controller@10001000 {
+ pci@10001000 {
compatible = "arm,versatile-pci";
device_type = "pci";
reg = <0x10001000 0x1000
diff --git a/arch/arm/boot/dts/vf610-zii-dev-rev-b.dts b/arch/arm/boot/dts/vf610-zii-dev-rev-b.dts
index 37f95427616f..acdf12ad0622 100644
--- a/arch/arm/boot/dts/vf610-zii-dev-rev-b.dts
+++ b/arch/arm/boot/dts/vf610-zii-dev-rev-b.dts
@@ -78,6 +78,7 @@
interrupts = <27 IRQ_TYPE_LEVEL_LOW>;
interrupt-controller;
#interrupt-cells = <2>;
+ eeprom-length = <512>;
ports {
#address-cells = <1>;
@@ -163,6 +164,7 @@
interrupts = <26 IRQ_TYPE_LEVEL_LOW>;
interrupt-controller;
#interrupt-cells = <2>;
+ eeprom-length = <512>;
ports {
#address-cells = <1>;
diff --git a/arch/arm/boot/dts/zx296702-ad1.dts b/arch/arm/boot/dts/zx296702-ad1.dts
index 081f980cfbe6..b0183c3a1d7c 100644
--- a/arch/arm/boot/dts/zx296702-ad1.dts
+++ b/arch/arm/boot/dts/zx296702-ad1.dts
@@ -18,7 +18,6 @@
};
&mmc0 {
- num-slots = <1>;
supports-highspeed;
non-removable;
disable-wp;
@@ -31,7 +30,6 @@
};
&mmc1 {
- num-slots = <1>;
supports-highspeed;
non-removable;
disable-wp;
diff --git a/arch/arm/boot/dts/zynq-7000.dtsi b/arch/arm/boot/dts/zynq-7000.dtsi
index f3ac9bfe580e..0f79fe1ccd9d 100644
--- a/arch/arm/boot/dts/zynq-7000.dtsi
+++ b/arch/arm/boot/dts/zynq-7000.dtsi
@@ -42,6 +42,14 @@
};
};
+ fpga_full: fpga-full {
+ compatible = "fpga-region";
+ fpga-mgr = <&devcfg>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ };
+
pmu@f8891000 {
compatible = "arm,cortex-a9-pmu";
interrupts = <0 5 4>, <0 6 4>;
diff --git a/arch/arm/boot/dts/zynq-parallella.dts b/arch/arm/boot/dts/zynq-parallella.dts
index 64a6390fc501..0144acfa9793 100644
--- a/arch/arm/boot/dts/zynq-parallella.dts
+++ b/arch/arm/boot/dts/zynq-parallella.dts
@@ -34,7 +34,7 @@
};
chosen {
- bootargs = "earlycon root=/dev/mmcblk0p2 rootfstype=ext4 rw rootwait";
+ bootargs = "root=/dev/mmcblk0p2 rootfstype=ext4 rw rootwait";
stdout-path = "serial0:115200n8";
};
};
@@ -54,6 +54,7 @@
compatible = "ethernet-phy-id0141.0e90",
"ethernet-phy-ieee802.3-c22";
reg = <0>;
+ device_type = "ethernet-phy";
marvell,reg-init = <0x3 0x10 0xff00 0x1e>,
<0x3 0x11 0xfff0 0xa>;
};
diff --git a/arch/arm/boot/dts/zynq-zc702.dts b/arch/arm/boot/dts/zynq-zc702.dts
index 0cdad2cc8b78..34e8277fce0d 100644
--- a/arch/arm/boot/dts/zynq-zc702.dts
+++ b/arch/arm/boot/dts/zynq-zc702.dts
@@ -12,7 +12,7 @@
* GNU General Public License for more details.
*/
/dts-v1/;
-/include/ "zynq-7000.dtsi"
+#include "zynq-7000.dtsi"
/ {
model = "Zynq ZC702 Development Board";
@@ -30,7 +30,7 @@
};
chosen {
- bootargs = "earlycon";
+ bootargs = "";
stdout-path = "serial0:115200n8";
};
@@ -97,6 +97,7 @@
ethernet_phy: ethernet-phy@7 {
reg = <7>;
+ device_type = "ethernet-phy";
};
};
@@ -131,6 +132,21 @@
};
};
+ i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ adv7511: hdmi-tx@39 {
+ compatible = "adi,adv7511";
+ reg = <0x39>;
+ adi,input-depth = <8>;
+ adi,input-colorspace = "yuv422";
+ adi,input-clock = "1x";
+ adi,input-style = <3>;
+ adi,input-justification = "right";
+ };
+ };
+
i2c@2 {
#address-cells = <1>;
#size-cells = <0>;
diff --git a/arch/arm/boot/dts/zynq-zc706.dts b/arch/arm/boot/dts/zynq-zc706.dts
index ad4bb06dba25..7ebc8c5ae39d 100644
--- a/arch/arm/boot/dts/zynq-zc706.dts
+++ b/arch/arm/boot/dts/zynq-zc706.dts
@@ -12,7 +12,7 @@
* GNU General Public License for more details.
*/
/dts-v1/;
-/include/ "zynq-7000.dtsi"
+#include "zynq-7000.dtsi"
/ {
model = "Zynq ZC706 Development Board";
@@ -30,7 +30,7 @@
};
chosen {
- bootargs = "earlycon";
+ bootargs = "";
stdout-path = "serial0:115200n8";
};
@@ -53,6 +53,7 @@
ethernet_phy: ethernet-phy@7 {
reg = <7>;
+ device_type = "ethernet-phy";
};
};
@@ -87,6 +88,21 @@
};
};
+ i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ adv7511: hdmi-tx@39 {
+ compatible = "adi,adv7511";
+ reg = <0x39>;
+ adi,input-depth = <8>;
+ adi,input-colorspace = "yuv422";
+ adi,input-clock = "1x";
+ adi,input-style = <3>;
+ adi,input-justification = "evenly";
+ };
+ };
+
i2c@2 {
#address-cells = <1>;
#size-cells = <0>;
diff --git a/arch/arm/boot/dts/zynq-zed.dts b/arch/arm/boot/dts/zynq-zed.dts
index 325379f7983c..5e44dc12fd60 100644
--- a/arch/arm/boot/dts/zynq-zed.dts
+++ b/arch/arm/boot/dts/zynq-zed.dts
@@ -12,7 +12,7 @@
* GNU General Public License for more details.
*/
/dts-v1/;
-/include/ "zynq-7000.dtsi"
+#include "zynq-7000.dtsi"
/ {
model = "Zynq Zed Development Board";
@@ -29,7 +29,7 @@
};
chosen {
- bootargs = "earlycon";
+ bootargs = "";
stdout-path = "serial0:115200n8";
};
@@ -50,6 +50,7 @@
ethernet_phy: ethernet-phy@0 {
reg = <0>;
+ device_type = "ethernet-phy";
};
};
diff --git a/arch/arm/boot/dts/zynq-zybo.dts b/arch/arm/boot/dts/zynq-zybo.dts
index 590ec24b8749..e40cafc5ee5b 100644
--- a/arch/arm/boot/dts/zynq-zybo.dts
+++ b/arch/arm/boot/dts/zynq-zybo.dts
@@ -12,7 +12,7 @@
* GNU General Public License for more details.
*/
/dts-v1/;
-/include/ "zynq-7000.dtsi"
+#include "zynq-7000.dtsi"
/ {
model = "Zynq ZYBO Development Board";
@@ -29,7 +29,7 @@
};
chosen {
- bootargs = "earlycon";
+ bootargs = "";
stdout-path = "serial0:115200n8";
};
@@ -51,6 +51,7 @@
ethernet_phy: ethernet-phy@0 {
reg = <0>;
+ device_type = "ethernet-phy";
};
};
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c
index 9b1b7be2ec0e..9a92de63426f 100644
--- a/arch/arm/common/dmabounce.c
+++ b/arch/arm/common/dmabounce.c
@@ -33,6 +33,7 @@
#include <linux/scatterlist.h>
#include <asm/cacheflush.h>
+#include <asm/dma-iommu.h>
#undef STATS
@@ -256,7 +257,7 @@ static inline dma_addr_t map_single(struct device *dev, void *ptr, size_t size,
if (buf == NULL) {
dev_err(dev, "%s: unable to map unsafe buffer %p!\n",
__func__, ptr);
- return DMA_ERROR_CODE;
+ return ARM_MAPPING_ERROR;
}
dev_dbg(dev, "%s: unsafe buffer %p (dma=%#x) mapped to %p (dma=%#x)\n",
@@ -326,7 +327,7 @@ static dma_addr_t dmabounce_map_page(struct device *dev, struct page *page,
ret = needs_bounce(dev, dma_addr, size);
if (ret < 0)
- return DMA_ERROR_CODE;
+ return ARM_MAPPING_ERROR;
if (ret == 0) {
arm_dma_ops.sync_single_for_device(dev, dma_addr, size, dir);
@@ -335,7 +336,7 @@ static dma_addr_t dmabounce_map_page(struct device *dev, struct page *page,
if (PageHighMem(page)) {
dev_err(dev, "DMA buffer bouncing of HIGHMEM pages is not supported\n");
- return DMA_ERROR_CODE;
+ return ARM_MAPPING_ERROR;
}
return map_single(dev, page_address(page) + offset, size, dir, attrs);
@@ -444,12 +445,17 @@ static void dmabounce_sync_for_device(struct device *dev,
arm_dma_ops.sync_single_for_device(dev, handle, size, dir);
}
-static int dmabounce_set_mask(struct device *dev, u64 dma_mask)
+static int dmabounce_dma_supported(struct device *dev, u64 dma_mask)
{
if (dev->archdata.dmabounce)
return 0;
- return arm_dma_ops.set_dma_mask(dev, dma_mask);
+ return arm_dma_ops.dma_supported(dev, dma_mask);
+}
+
+static int dmabounce_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return arm_dma_ops.mapping_error(dev, dma_addr);
}
static const struct dma_map_ops dmabounce_ops = {
@@ -465,7 +471,8 @@ static const struct dma_map_ops dmabounce_ops = {
.unmap_sg = arm_dma_unmap_sg,
.sync_sg_for_cpu = arm_dma_sync_sg_for_cpu,
.sync_sg_for_device = arm_dma_sync_sg_for_device,
- .set_dma_mask = dmabounce_set_mask,
+ .dma_supported = dmabounce_dma_supported,
+ .mapping_error = dmabounce_mapping_error,
};
static int dmabounce_init_pool(struct dmabounce_pool *pool, struct device *dev,
diff --git a/arch/arm/configs/acs5k_defconfig b/arch/arm/configs/acs5k_defconfig
index 92b0f90d1515..d04ee19e5b75 100644
--- a/arch/arm/configs/acs5k_defconfig
+++ b/arch/arm/configs/acs5k_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -30,13 +29,9 @@ CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
@@ -49,8 +44,6 @@ CONFIG_BLK_DEV_RAM_SIZE=8192
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_ARM_KS8695_ETHER=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_PRISM54=m
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
# CONFIG_INPUT_KEYBOARD is not set
@@ -69,7 +62,6 @@ CONFIG_KS8695_WATCHDOG=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_PCF8563=y
CONFIG_EXT2_FS=y
-CONFIG_INOTIFY=y
CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y
CONFIG_JFFS2_SUMMARY=y
diff --git a/arch/arm/configs/acs5k_tiny_defconfig b/arch/arm/configs/acs5k_tiny_defconfig
index 2a27a147463f..25c593df41d1 100644
--- a/arch/arm/configs/acs5k_tiny_defconfig
+++ b/arch/arm/configs/acs5k_tiny_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -25,13 +24,9 @@ CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
@@ -40,12 +35,9 @@ CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_PHYSMAP=y
# CONFIG_BLK_DEV is not set
-# CONFIG_MISC_DEVICES is not set
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_ARM_KS8695_ETHER=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -62,11 +54,9 @@ CONFIG_GPIO_PCA953X=y
CONFIG_WATCHDOG=y
CONFIG_KS8695_WATCHDOG=y
# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_PCF8563=y
-CONFIG_INOTIFY=y
CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y
CONFIG_JFFS2_SUMMARY=y
diff --git a/arch/arm/configs/am200epdkit_defconfig b/arch/arm/configs/am200epdkit_defconfig
index 113a5d815060..8c9b6ea46188 100644
--- a/arch/arm/configs/am200epdkit_defconfig
+++ b/arch/arm/configs/am200epdkit_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_LOCALVERSION="gum"
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
@@ -30,12 +29,9 @@ CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_BT=m
-CONFIG_BT_L2CAP=m
-CONFIG_BT_SCO=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
@@ -43,7 +39,6 @@ CONFIG_BT_HCIUART=m
CONFIG_BT_HCIUART_H4=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -88,7 +83,6 @@ CONFIG_USB_ETH=m
CONFIG_MMC=y
CONFIG_MMC_PXA=y
# CONFIG_DNOTIFY is not set
-CONFIG_INOTIFY=y
CONFIG_VFAT_FS=y
CONFIG_JFFS2_FS=y
CONFIG_JFFS2_COMPRESSION_OPTIONS=y
@@ -101,7 +95,6 @@ CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_PREEMPT is not set
# CONFIG_DEBUG_BUGVERBOSE is not set
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_CRYPTO=y
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_ECB=m
diff --git a/arch/arm/configs/aspeed_g4_defconfig b/arch/arm/configs/aspeed_g4_defconfig
index cfc2465e8b77..d23b9d56a88b 100644
--- a/arch/arm/configs/aspeed_g4_defconfig
+++ b/arch/arm/configs/aspeed_g4_defconfig
@@ -24,6 +24,7 @@ CONFIG_MODULE_UNLOAD=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_ASPEED=y
CONFIG_MACH_ASPEED_G4=y
+CONFIG_VMSPLIT_2G=y
CONFIG_AEABI=y
# CONFIG_CPU_SW_DOMAIN_PAN is not set
# CONFIG_COMPACTION is not set
@@ -64,6 +65,7 @@ CONFIG_MTD_UBI_FASTMAP=y
CONFIG_MTD_UBI_BLOCK=y
CONFIG_BLK_DEV_RAM=y
CONFIG_ASPEED_LPC_CTRL=y
+CONFIG_ASPEED_LPC_SNOOP=y
CONFIG_EEPROM_AT24=y
CONFIG_NETDEVICES=y
CONFIG_NETCONSOLE=y
@@ -104,6 +106,7 @@ CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=6
CONFIG_SERIAL_8250_RUNTIME_UARTS=6
CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_ASPEED_VUART=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_ASPEED_BT_IPMI_BMC=y
@@ -114,6 +117,7 @@ CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MUX=y
CONFIG_I2C_MUX_PCA9541=y
CONFIG_I2C_MUX_PCA954x=y
+CONFIG_I2C_ASPEED=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_ASPEED=y
@@ -166,7 +170,6 @@ CONFIG_PRINTK_TIME=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_STRIP_ASM_SYMS=y
CONFIG_DEBUG_FS=y
-CONFIG_LOCKUP_DETECTOR=y
CONFIG_WQ_WATCHDOG=y
CONFIG_PANIC_TIMEOUT=-1
# CONFIG_SCHED_DEBUG is not set
diff --git a/arch/arm/configs/aspeed_g5_defconfig b/arch/arm/configs/aspeed_g5_defconfig
index 3c20d93de389..c0ad7b82086b 100644
--- a/arch/arm/configs/aspeed_g5_defconfig
+++ b/arch/arm/configs/aspeed_g5_defconfig
@@ -67,6 +67,7 @@ CONFIG_MTD_UBI_FASTMAP=y
CONFIG_MTD_UBI_BLOCK=y
CONFIG_BLK_DEV_RAM=y
CONFIG_ASPEED_LPC_CTRL=y
+CONFIG_ASPEED_LPC_SNOOP=y
CONFIG_EEPROM_AT24=y
CONFIG_NETDEVICES=y
CONFIG_NETCONSOLE=y
@@ -107,6 +108,7 @@ CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=6
CONFIG_SERIAL_8250_RUNTIME_UARTS=6
CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_ASPEED_VUART=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_ASPEED_BT_IPMI_BMC=y
@@ -117,6 +119,7 @@ CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MUX=y
CONFIG_I2C_MUX_PCA9541=y
CONFIG_I2C_MUX_PCA954x=y
+CONFIG_I2C_ASPEED=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_ASPEED=y
@@ -169,7 +172,6 @@ CONFIG_PRINTK_TIME=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_STRIP_ASM_SYMS=y
CONFIG_DEBUG_FS=y
-CONFIG_LOCKUP_DETECTOR=y
CONFIG_WQ_WATCHDOG=y
CONFIG_PANIC_TIMEOUT=-1
# CONFIG_SCHED_DEBUG is not set
diff --git a/arch/arm/configs/assabet_defconfig b/arch/arm/configs/assabet_defconfig
index ab19ff1a0b71..04c86ff558da 100644
--- a/arch/arm/configs/assabet_defconfig
+++ b/arch/arm/configs/assabet_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
@@ -22,9 +21,7 @@ CONFIG_IRDA=m
CONFIG_IRLAN=m
CONFIG_SA1100_FIR=m
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
diff --git a/arch/arm/configs/axm55xx_defconfig b/arch/arm/configs/axm55xx_defconfig
index d3260d7d5af1..8e17e7ed1f02 100644
--- a/arch/arm/configs/axm55xx_defconfig
+++ b/arch/arm/configs/axm55xx_defconfig
@@ -74,7 +74,6 @@ CONFIG_IP_PNP_BOOTP=y
CONFIG_INET_AH=y
CONFIG_INET_ESP=y
CONFIG_INET_IPCOMP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_NETWORK_PHY_TIMESTAMPING=y
CONFIG_BRIDGE=y
diff --git a/arch/arm/configs/badge4_defconfig b/arch/arm/configs/badge4_defconfig
index 2a604aa3195b..5ae5b5228467 100644
--- a/arch/arm/configs/badge4_defconfig
+++ b/arch/arm/configs/badge4_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_EXPERT=y
CONFIG_MODULES=y
@@ -23,14 +22,11 @@ CONFIG_IRCOMM=y
CONFIG_IRDA_ULTRA=y
CONFIG_SA1100_FIR=y
CONFIG_BT=m
-CONFIG_BT_L2CAP=m
CONFIG_BT_HCIUART=m
CONFIG_BT_HCIVHCI=m
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_DEBUG=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -113,5 +109,4 @@ CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_BUGVERBOSE is not set
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
diff --git a/arch/arm/configs/bcm2835_defconfig b/arch/arm/configs/bcm2835_defconfig
index 3ba8cd3211f8..43dab4890ad3 100644
--- a/arch/arm/configs/bcm2835_defconfig
+++ b/arch/arm/configs/bcm2835_defconfig
@@ -24,6 +24,8 @@ CONFIG_PROFILING=y
CONFIG_OPROFILE=y
CONFIG_JUMP_LABEL=y
CONFIG_CC_STACKPROTECTOR_REGULAR=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
CONFIG_ARCH_MULTI_V6=y
CONFIG_ARCH_BCM=y
CONFIG_ARCH_BCM2835=y
@@ -53,6 +55,7 @@ CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
CONFIG_DMA_CMA=y
+CONFIG_CMA_SIZE_MBYTES=32
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SCSI_CONSTANTS=y
@@ -60,9 +63,15 @@ CONFIG_SCSI_SCAN_ASYNC=y
CONFIG_NETDEVICES=y
CONFIG_USB_USBNET=y
CONFIG_USB_NET_SMSC95XX=y
+CONFIG_BRCMFMAC=m
CONFIG_ZD1211RW=y
CONFIG_INPUT_EVDEV=y
# CONFIG_LEGACY_PTYS is not set
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_8250_BCM2835AUX=y
CONFIG_SERIAL_AMBA_PL011=y
CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
CONFIG_TTY_PRINTK=y
@@ -86,8 +95,14 @@ CONFIG_SND=y
CONFIG_SND_SOC=y
CONFIG_SND_BCM2835_SOC_I2S=y
CONFIG_USB=y
+CONFIG_USB_OTG=y
CONFIG_USB_STORAGE=y
CONFIG_USB_DWC2=y
+CONFIG_NOP_USB_XCEIV=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_ETH=m
+CONFIG_USB_ETH_EEM=y
+CONFIG_USB_G_SERIAL=m
CONFIG_MMC=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_PLTFM=y
diff --git a/arch/arm/configs/cerfcube_defconfig b/arch/arm/configs/cerfcube_defconfig
index 57a2a18690b1..3f910bbf1bfd 100644
--- a/arch/arm/configs/cerfcube_defconfig
+++ b/arch/arm/configs/cerfcube_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_LOG_BUF_SHIFT=14
@@ -29,10 +28,8 @@ CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
# CONFIG_IPV6 is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=m
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
@@ -70,5 +67,4 @@ CONFIG_NLS_ISO8859_1=m
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
diff --git a/arch/arm/configs/cm_x2xx_defconfig b/arch/arm/configs/cm_x2xx_defconfig
index 3b32d5fd9326..fb45b4983d3c 100644
--- a/arch/arm/configs/cm_x2xx_defconfig
+++ b/arch/arm/configs/cm_x2xx_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
@@ -39,12 +38,9 @@ CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_BT=m
-CONFIG_BT_L2CAP=m
-CONFIG_BT_SCO=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_BNEP=m
CONFIG_BT_HIDP=m
@@ -53,7 +49,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_FW_LOADER=m
CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
@@ -69,7 +64,6 @@ CONFIG_MTD_NAND_CM_X270=y
CONFIG_MTD_NAND_PLATFORM=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_ATA=m
@@ -82,8 +76,6 @@ CONFIG_DM9000_DEBUGLEVEL=1
CONFIG_NET_PCI=y
CONFIG_8139TOO=m
# CONFIG_8139TOO_PIO is not set
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_PPP=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPP_FILTER=y
@@ -144,7 +136,6 @@ CONFIG_HID_SAMSUNG=y
CONFIG_HID_SONY=y
CONFIG_HID_SUNPLUS=y
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_MON=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_STORAGE=y
@@ -160,7 +151,6 @@ CONFIG_RTC_DRV_V3020=y
CONFIG_RTC_DRV_PXA=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
-CONFIG_INOTIFY=y
CONFIG_VFAT_FS=m
# CONFIG_PROC_PAGE_MONITOR is not set
CONFIG_TMPFS=y
@@ -179,10 +169,7 @@ CONFIG_DEBUG_KERNEL=y
# CONFIG_DETECT_SOFTLOCKUP is not set
# CONFIG_SCHED_DEBUG is not set
# CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/arm/configs/cm_x300_defconfig b/arch/arm/configs/cm_x300_defconfig
index 7df040e91c1c..c0418e03d180 100644
--- a/arch/arm/configs/cm_x300_defconfig
+++ b/arch/arm/configs/cm_x300_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_LOCALVERSION="-cm-x300"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
@@ -35,12 +34,9 @@ CONFIG_IP_PNP_RARP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_BT=m
-CONFIG_BT_L2CAP=y
-CONFIG_BT_SCO=y
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
@@ -51,8 +47,6 @@ CONFIG_BT_HCIBTUSB=m
CONFIG_LIB80211=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_PXA3xx=y
@@ -66,8 +60,6 @@ CONFIG_NET_ETHERNET=y
CONFIG_DM9000=y
CONFIG_DM9000_DEBUGLEVEL=0
CONFIG_DM9000_FORCE_SIMPLE_PHY_POLL=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_KEYBOARD_ATKBD is not set
@@ -129,7 +121,6 @@ CONFIG_HID_TOPSEED=y
CONFIG_HID_THRUSTMASTER=y
CONFIG_HID_ZEROPLUS=y
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_MON=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_STORAGE=y
@@ -165,7 +156,6 @@ CONFIG_NLS_ISO8859_1=m
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_KERNEL=y
# CONFIG_SCHED_DEBUG is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
# CONFIG_FTRACE is not set
CONFIG_DEBUG_USER=y
CONFIG_DEBUG_LL=y
diff --git a/arch/arm/configs/cns3420vb_defconfig b/arch/arm/configs/cns3420vb_defconfig
index b1ff5cdba9a1..63a953d855a6 100644
--- a/arch/arm/configs/cns3420vb_defconfig
+++ b/arch/arm/configs/cns3420vb_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
@@ -31,9 +30,7 @@ CONFIG_CMDLINE="console=ttyS0,38400 mem=128M root=/dev/mmcblk0p1 ro rootwait"
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -41,7 +38,6 @@ CONFIG_MTD_PHYSMAP=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=20000
-# CONFIG_MISC_DEVICES is not set
CONFIG_BLK_DEV_SD=y
CONFIG_ATA=y
# CONFIG_SATA_PMP is not set
@@ -56,20 +52,17 @@ CONFIG_LEGACY_PTY_COUNT=16
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_MMC=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
-CONFIG_INOTIFY=y
CONFIG_AUTOFS4_FS=y
CONFIG_FSCACHE=y
CONFIG_TMPFS=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_ARM_UNWIND is not set
CONFIG_CRC_CCITT=y
diff --git a/arch/arm/configs/colibri_pxa270_defconfig b/arch/arm/configs/colibri_pxa270_defconfig
index 3146ad055716..8995695fc118 100644
--- a/arch/arm/configs/colibri_pxa270_defconfig
+++ b/arch/arm/configs/colibri_pxa270_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -32,10 +31,8 @@ CONFIG_INET=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
-CONFIG_IP_NF_QUEUE=m
CONFIG_VLAN_8021Q=m
CONFIG_IRDA=m
CONFIG_IRLAN=m
@@ -45,8 +42,6 @@ CONFIG_IRDA_CACHE_LAST_LSAP=y
CONFIG_IRDA_FAST_RR=y
CONFIG_IRTTY_SIR=m
CONFIG_BT=m
-CONFIG_BT_L2CAP=m
-CONFIG_BT_SCO=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
@@ -57,8 +52,6 @@ CONFIG_CFG80211=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_CONNECTOR=y
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
@@ -87,8 +80,6 @@ CONFIG_NETDEVICES=y
CONFIG_PHYLIB=y
CONFIG_NET_ETHERNET=y
CONFIG_DM9000=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_HOSTAP=y
CONFIG_HOSTAP_FIRMWARE=y
CONFIG_HOSTAP_FIRMWARE_NVRAM=y
@@ -123,7 +114,6 @@ CONFIG_FONT_8x16=y
CONFIG_LOGO=y
# CONFIG_USB_HID is not set
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_SERIAL=m
CONFIG_USB_GADGET=m
CONFIG_USB_GADGET_DUMMY_HCD=y
@@ -132,7 +122,6 @@ CONFIG_NEW_LEDS=y
CONFIG_RTC_CLASS=y
# CONFIG_RTC_HCTOSYS is not set
CONFIG_RTC_DRV_PCF8583=m
-CONFIG_INOTIFY=y
CONFIG_AUTOFS4_FS=y
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
@@ -160,9 +149,7 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
CONFIG_KEYS=y
CONFIG_SECURITY=y
diff --git a/arch/arm/configs/colibri_pxa300_defconfig b/arch/arm/configs/colibri_pxa300_defconfig
index be02fe2b14cb..d282e8b0bf33 100644
--- a/arch/arm/configs/colibri_pxa300_defconfig
+++ b/arch/arm/configs/colibri_pxa300_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
@@ -14,18 +13,14 @@ CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_SYN_COOKIES=y
-# CONFIG_INET_LRO is not set
CONFIG_IPV6=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_SG=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_AX88796=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -45,7 +40,6 @@ CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_VGA_CONSOLE is not set
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
CONFIG_USB_MON=y
@@ -54,16 +48,13 @@ CONFIG_MMC=y
# CONFIG_MMC_BLOCK_BOUNCE is not set
CONFIG_MMC_PXA=y
CONFIG_EXT3_FS=y
-CONFIG_INOTIFY=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_ROOT_NFS=y
CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_AES=y
diff --git a/arch/arm/configs/collie_defconfig b/arch/arm/configs/collie_defconfig
index a8f3c596c39c..d398ae53aba7 100644
--- a/arch/arm/configs/collie_defconfig
+++ b/arch/arm/configs/collie_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
@@ -26,8 +25,6 @@ CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IPV6 is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
@@ -91,5 +88,4 @@ CONFIG_DEBUG_KERNEL=y
# CONFIG_DETECT_SOFTLOCKUP is not set
CONFIG_DEBUG_MUTEXES=y
# CONFIG_DEBUG_BUGVERBOSE is not set
-CONFIG_DEBUG_ERRORS=y
CONFIG_CRC_CCITT=y
diff --git a/arch/arm/configs/corgi_defconfig b/arch/arm/configs/corgi_defconfig
index 462533bd84c6..09e1672777c9 100644
--- a/arch/arm/configs/corgi_defconfig
+++ b/arch/arm/configs/corgi_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_LOG_BUF_SHIFT=14
@@ -33,26 +32,22 @@ CONFIG_UNIX=y
CONFIG_XFRM_USER=m
CONFIG_INET=y
CONFIG_SYN_COOKIES=y
-# CONFIG_INET_LRO is not set
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_TUNNEL=m
CONFIG_NETFILTER=y
-CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
-CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_MATCH_FRAG=m
@@ -69,8 +64,6 @@ CONFIG_IRNET=m
CONFIG_IRCOMM=m
CONFIG_PXA_FICP=m
CONFIG_BT=m
-CONFIG_BT_L2CAP=m
-CONFIG_BT_SCO=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
@@ -90,9 +83,7 @@ CONFIG_BT_HCIBTUART=m
CONFIG_BT_HCIVHCI=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_ROM=y
CONFIG_MTD_COMPLEX_MAPPINGS=y
@@ -209,7 +200,6 @@ CONFIG_USB_EMI26=m
CONFIG_USB_RIO500=m
CONFIG_USB_LEGOTOWER=m
CONFIG_USB_LCD=m
-CONFIG_USB_LED=m
CONFIG_USB_CYTHERM=m
CONFIG_USB_IDMOUSE=m
CONFIG_USB_GADGET=y
@@ -221,7 +211,6 @@ CONFIG_USB_G_SERIAL=m
CONFIG_MMC=y
CONFIG_MMC_PXA=y
CONFIG_EXT2_FS=y
-CONFIG_INOTIFY=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
@@ -243,9 +232,7 @@ CONFIG_NLS_UTF8=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_PREEMPT is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_FTRACE is not set
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_TEST=m
diff --git a/arch/arm/configs/davinci_all_defconfig b/arch/arm/configs/davinci_all_defconfig
index 67db82999c06..27d9720f7207 100644
--- a/arch/arm/configs/davinci_all_defconfig
+++ b/arch/arm/configs/davinci_all_defconfig
@@ -58,6 +58,7 @@ CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_FW_LOADER is not set
CONFIG_DA8XX_MSTPRI=y
CONFIG_MTD=m
+CONFIG_MTD_TESTS=m
CONFIG_MTD_BLOCK=m
CONFIG_MTD_CFI=m
CONFIG_MTD_CFI_INTELEXT=m
@@ -83,14 +84,13 @@ CONFIG_NETCONSOLE=y
CONFIG_TUN=m
CONFIG_DM9000=y
CONFIG_TI_DAVINCI_EMAC=y
+CONFIG_LSI_ET1011C_PHY=y
CONFIG_LXT_PHY=y
CONFIG_SMSC_PHY=y
-CONFIG_LSI_ET1011C_PHY=y
CONFIG_PPP=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
-# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_EVDEV=m
CONFIG_INPUT_EVBUG=m
CONFIG_KEYBOARD_ATKBD=m
@@ -122,6 +122,7 @@ CONFIG_GPIO_PCA953X=y
CONFIG_GPIO_PCA953X_IRQ=y
CONFIG_POWER_RESET=y
CONFIG_POWER_RESET_GPIO=y
+CONFIG_BATTERY_LEGO_EV3=m
CONFIG_WATCHDOG=y
CONFIG_DAVINCI_WATCHDOG=m
CONFIG_MFD_DM355EVM_MSP=y
@@ -131,6 +132,8 @@ CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_REGULATOR_TPS6507X=y
CONFIG_MEDIA_SUPPORT=m
CONFIG_MEDIA_CAMERA_SUPPORT=y
+CONFIG_MEDIA_USB_SUPPORT=y
+CONFIG_USB_VIDEO_CLASS=m
CONFIG_V4L_PLATFORM_DRIVERS=y
CONFIG_VIDEO_DAVINCI_VPIF_DISPLAY=m
CONFIG_VIDEO_DAVINCI_VPIF_CAPTURE=m
@@ -140,6 +143,8 @@ CONFIG_VIDEO_ADV7343=m
CONFIG_DRM=m
CONFIG_DRM_TILCDC=m
CONFIG_DRM_DUMB_VGA_DAC=m
+CONFIG_DRM_TINYDRM=m
+CONFIG_TINYDRM_ST7586=m
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_DA8XX=y
@@ -147,6 +152,7 @@ CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
CONFIG_SOUND=m
CONFIG_SND=m
+CONFIG_SND_USB_AUDIO=m
CONFIG_SND_SOC=m
CONFIG_SND_EDMA_SOC=m
CONFIG_SND_DA850_SOC_EVM=m
@@ -174,7 +180,7 @@ CONFIG_USB_OHCI_HCD=m
CONFIG_USB_STORAGE=m
CONFIG_USB_MUSB_HDRC=m
CONFIG_USB_MUSB_DA8XX=m
-CONFIG_MUSB_PIO_ONLY=y
+CONFIG_USB_TI_CPPI41_DMA=y
CONFIG_USB_TEST=m
CONFIG_NOP_USB_XCEIV=m
CONFIG_USB_GADGET=m
@@ -182,6 +188,7 @@ CONFIG_USB_GADGET_DEBUG_FILES=y
CONFIG_USB_GADGET_DEBUG_FS=y
CONFIG_USB_ZERO=m
CONFIG_USB_ETH=m
+CONFIG_USB_G_NCM=m
CONFIG_USB_GADGETFS=m
CONFIG_USB_MASS_STORAGE=m
CONFIG_USB_G_SERIAL=m
@@ -236,7 +243,6 @@ CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_UTF8=m
CONFIG_DEBUG_FS=y
-CONFIG_TIMER_STATS=y
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_MUTEXES=y
# CONFIG_ARM_UNWIND is not set
diff --git a/arch/arm/configs/dove_defconfig b/arch/arm/configs/dove_defconfig
index 701677f9248c..a93cc2fcf791 100644
--- a/arch/arm/configs/dove_defconfig
+++ b/arch/arm/configs/dove_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
diff --git a/arch/arm/configs/ebsa110_defconfig b/arch/arm/configs/ebsa110_defconfig
index 14559dbb4c2c..731a22a55f4e 100644
--- a/arch/arm/configs/ebsa110_defconfig
+++ b/arch/arm/configs/ebsa110_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_LOG_BUF_SHIFT=14
diff --git a/arch/arm/configs/efm32_defconfig b/arch/arm/configs/efm32_defconfig
index c0dac0f0f804..860d27138e6f 100644
--- a/arch/arm/configs/efm32_defconfig
+++ b/arch/arm/configs/efm32_defconfig
@@ -38,7 +38,6 @@ CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
diff --git a/arch/arm/configs/em_x270_defconfig b/arch/arm/configs/em_x270_defconfig
index 8e10df7ba1b4..30a67523f860 100644
--- a/arch/arm/configs/em_x270_defconfig
+++ b/arch/arm/configs/em_x270_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
@@ -34,12 +33,9 @@ CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_BT=m
-CONFIG_BT_L2CAP=m
-CONFIG_BT_SCO=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_BNEP=m
CONFIG_BT_HIDP=m
@@ -49,7 +45,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_FW_LOADER=m
CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
@@ -63,7 +58,6 @@ CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_PLATFORM=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
# CONFIG_SCSI_LOWLEVEL is not set
@@ -71,8 +65,6 @@ CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_DM9000=y
CONFIG_DM9000_DEBUGLEVEL=1
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_PPP=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPP_FILTER=y
@@ -144,7 +136,6 @@ CONFIG_HID_SAMSUNG=y
CONFIG_HID_SONY=y
CONFIG_HID_SUNPLUS=y
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_MON=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_STORAGE=y
@@ -160,7 +151,6 @@ CONFIG_RTC_DRV_V3020=y
CONFIG_RTC_DRV_PXA=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
-CONFIG_INOTIFY=y
CONFIG_VFAT_FS=m
# CONFIG_PROC_PAGE_MONITOR is not set
CONFIG_TMPFS=y
@@ -180,10 +170,7 @@ CONFIG_DEBUG_KERNEL=y
# CONFIG_DETECT_SOFTLOCKUP is not set
# CONFIG_SCHED_DEBUG is not set
# CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_MICHAEL_MIC=m
diff --git a/arch/arm/configs/ep93xx_defconfig b/arch/arm/configs/ep93xx_defconfig
index 158dde87f5d0..78cd73d1c795 100644
--- a/arch/arm/configs/ep93xx_defconfig
+++ b/arch/arm/configs/ep93xx_defconfig
@@ -45,7 +45,6 @@ CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_SYN_COOKIES=y
-# CONFIG_INET_LRO is not set
CONFIG_IPV6=y
# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
diff --git a/arch/arm/configs/eseries_pxa_defconfig b/arch/arm/configs/eseries_pxa_defconfig
index d68ac67c201c..cd27d651463c 100644
--- a/arch/arm/configs/eseries_pxa_defconfig
+++ b/arch/arm/configs/eseries_pxa_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -29,7 +28,6 @@ CONFIG_PM=y
CONFIG_NET=y
CONFIG_UNIX=y
CONFIG_INET=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_IRDA=y
CONFIG_IRLAN=m
@@ -55,8 +53,6 @@ CONFIG_ATA=m
# CONFIG_SATA_PMP is not set
CONFIG_PATA_PCMCIA=m
CONFIG_NETDEVICES=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_HERMES=m
CONFIG_PCMCIA_HERMES=m
CONFIG_NET_PCMCIA=y
@@ -97,11 +93,9 @@ CONFIG_SND_PXA2XX_SOC=m
CONFIG_SND_PXA2XX_SOC_E800=m
# CONFIG_USB_SUPPORT is not set
CONFIG_MMC=y
-CONFIG_MMC_UNSAFE_RESUME=y
CONFIG_MMC_TMIO=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=m
-CONFIG_INOTIFY=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
CONFIG_NFS_FS=y
@@ -111,8 +105,6 @@ CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_PCBC=m
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig
index 6dc661c4a2c1..8c2a2619971b 100644
--- a/arch/arm/configs/exynos_defconfig
+++ b/arch/arm/configs/exynos_defconfig
@@ -3,7 +3,6 @@ CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_CGROUPS=y
CONFIG_BLK_DEV_INITRD=y
-CONFIG_KALLSYMS_ALL=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_PARTITION_ADVANCED=y
@@ -48,8 +47,43 @@ CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
+CONFIG_BT=m
+CONFIG_BT_RFCOMM=m
+CONFIG_BT_RFCOMM_TTY=y
+CONFIG_BT_BNEP=m
+CONFIG_BT_BNEP_MC_FILTER=y
+CONFIG_BT_BNEP_PROTO_FILTER=y
+CONFIG_BT_HIDP=m
+CONFIG_BT_LEDS=y
+CONFIG_BT_HCIBTUSB=m
+CONFIG_BT_HCIBTSDIO=m
+CONFIG_BT_HCIUART=m
+CONFIG_BT_HCIUART_BCSP=y
+CONFIG_BT_HCIUART_ATH3K=y
+CONFIG_BT_HCIUART_3WIRE=y
+CONFIG_BT_HCIUART_INTEL=y
+CONFIG_BT_HCIUART_BCM=y
+CONFIG_BT_HCIUART_QCA=y
+CONFIG_BT_HCIUART_AG6XX=y
+CONFIG_BT_HCIUART_MRVL=y
+CONFIG_BT_HCIBCM203X=m
+CONFIG_BT_HCIBPA10X=m
+CONFIG_BT_HCIBFUSB=m
+CONFIG_BT_HCIVHCI=m
+CONFIG_BT_MRVL=m
+CONFIG_BT_MRVL_SDIO=m
+CONFIG_BT_ATH3K=m
CONFIG_CFG80211=y
-CONFIG_RFKILL_REGULATOR=y
+CONFIG_MAC80211=y
+CONFIG_MAC80211_LEDS=y
+CONFIG_NFC=y
+CONFIG_NFC_DIGITAL=m
+CONFIG_NFC_NCI=y
+CONFIG_NFC_NCI_SPI=m
+CONFIG_NFC_NCI_UART=m
+CONFIG_NFC_HCI=m
+CONFIG_NFC_SHDLC=y
+CONFIG_NFC_S3FWRN5_I2C=y
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_DMA_CMA=y
@@ -66,7 +100,9 @@ CONFIG_BLK_DEV_DM=y
CONFIG_DM_CRYPT=m
CONFIG_NETDEVICES=y
CONFIG_SMSC911X=y
+CONFIG_USB_RTL8150=m
CONFIG_USB_RTL8152=y
+CONFIG_USB_LAN78XX=m
CONFIG_USB_USBNET=y
CONFIG_USB_NET_SMSC75XX=y
CONFIG_USB_NET_SMSC95XX=y
@@ -74,6 +110,7 @@ CONFIG_MWIFIEX=m
CONFIG_MWIFIEX_SDIO=m
CONFIG_INPUT_EVDEV=y
CONFIG_KEYBOARD_GPIO=y
+CONFIG_KEYBOARD_SAMSUNG=y
CONFIG_KEYBOARD_CROS_EC=y
# CONFIG_MOUSE_PS2 is not set
CONFIG_MOUSE_CYAPA=y
@@ -83,7 +120,6 @@ CONFIG_TOUCHSCREEN_MMS114=y
CONFIG_INPUT_MISC=y
CONFIG_INPUT_MAX77693_HAPTIC=y
CONFIG_INPUT_MAX8997_HAPTIC=y
-CONFIG_KEYBOARD_SAMSUNG=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_SAMSUNG=y
@@ -158,6 +194,7 @@ CONFIG_VIDEO_SAMSUNG_S5P_JPEG=m
CONFIG_VIDEO_SAMSUNG_S5P_MFC=m
CONFIG_VIDEO_SAMSUNG_EXYNOS_GSC=m
CONFIG_V4L_TEST_DRIVERS=y
+CONFIG_VIDEO_VIVID=m
CONFIG_DRM=y
CONFIG_DRM_EXYNOS=y
CONFIG_DRM_EXYNOS_FIMD=y
@@ -189,7 +226,25 @@ CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_EXYNOS=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_EXYNOS=y
+CONFIG_USB_ACM=m
+CONFIG_USB_PRINTER=m
+CONFIG_USB_WDM=m
+CONFIG_USB_TMC=m
CONFIG_USB_STORAGE=y
+CONFIG_USB_STORAGE_REALTEK=m
+CONFIG_USB_STORAGE_DATAFAB=m
+CONFIG_USB_STORAGE_FREECOM=m
+CONFIG_USB_STORAGE_ISD200=m
+CONFIG_USB_STORAGE_USBAT=m
+CONFIG_USB_STORAGE_SDDR09=m
+CONFIG_USB_STORAGE_SDDR55=m
+CONFIG_USB_STORAGE_JUMPSHOT=m
+CONFIG_USB_STORAGE_ALAUDA=m
+CONFIG_USB_STORAGE_ONETOUCH=m
+CONFIG_USB_STORAGE_KARMA=m
+CONFIG_USB_STORAGE_CYPRESS_ATACB=m
+CONFIG_USB_STORAGE_ENE_UB6250=m
+CONFIG_USB_UAS=m
CONFIG_USB_DWC3=y
CONFIG_USB_DWC2=y
CONFIG_USB_HSIC_USB3503=y
@@ -209,7 +264,6 @@ CONFIG_LEDS_GPIO=y
CONFIG_LEDS_PWM=y
CONFIG_LEDS_MAX77693=y
CONFIG_LEDS_MAX8997=y
-CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_MAX8997=y
@@ -220,7 +274,6 @@ CONFIG_DMADEVICES=y
CONFIG_PL330_DMA=y
CONFIG_CROS_EC_CHARDEV=y
CONFIG_COMMON_CLK_MAX77686=y
-CONFIG_COMMON_CLK_MAX77802=y
CONFIG_COMMON_CLK_S2MPS11=y
CONFIG_PM_DEVFREQ=y
CONFIG_DEVFREQ_GOV_PERFORMANCE=y
@@ -254,24 +307,42 @@ CONFIG_ROOT_NFS=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_UTF8=y
CONFIG_PRINTK_TIME=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_FS=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
-CONFIG_LOCKUP_DETECTOR=y
-CONFIG_DEBUG_RT_MUTEXES=y
-CONFIG_DEBUG_SPINLOCK=y
-CONFIG_DEBUG_MUTEXES=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
+# CONFIG_DETECT_HUNG_TASK is not set
+CONFIG_PROVE_LOCKING=y
+CONFIG_DEBUG_ATOMIC_SLEEP=y
CONFIG_DEBUG_USER=y
+CONFIG_CRYPTO_RSA=m
+CONFIG_CRYPTO_DH=m
+CONFIG_CRYPTO_USER=m
+CONFIG_CRYPTO_TEST=m
+CONFIG_CRYPTO_LRW=m
+CONFIG_CRYPTO_XTS=m
+CONFIG_CRYPTO_MD5=m
+CONFIG_CRYPTO_SHA512=m
+CONFIG_CRYPTO_SHA3=m
+CONFIG_CRYPTO_SALSA20=m
+CONFIG_CRYPTO_LZO=m
+CONFIG_CRYPTO_LZ4=m
+CONFIG_CRYPTO_USER_API_HASH=m
+CONFIG_CRYPTO_USER_API_SKCIPHER=m
+CONFIG_CRYPTO_USER_API_RNG=m
+CONFIG_CRYPTO_USER_API_AEAD=m
+CONFIG_CRYPTO_DEV_EXYNOS_RNG=y
CONFIG_CRYPTO_DEV_S5P=y
CONFIG_ARM_CRYPTO=y
CONFIG_CRYPTO_SHA1_ARM_NEON=m
CONFIG_CRYPTO_SHA256_ARM=m
CONFIG_CRYPTO_SHA512_ARM=m
CONFIG_CRYPTO_AES_ARM_BS=m
+CONFIG_CRYPTO_CHACHA20_NEON=m
CONFIG_CRC_CCITT=y
CONFIG_FONTS=y
CONFIG_FONT_7x14=y
-CONFIG_VIDEO_VIVID=m
diff --git a/arch/arm/configs/ezx_defconfig b/arch/arm/configs/ezx_defconfig
index d3f1768840e2..484e51fbd4a6 100644
--- a/arch/arm/configs/ezx_defconfig
+++ b/arch/arm/configs/ezx_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_LOCALVERSION="-ezx200910312315"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
@@ -28,7 +27,6 @@ CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_CMDLINE="console=tty1 root=/dev/mmcblk0p2 rootfstype=ext2 rootdelay=3 ip=192.168.0.202:192.168.0.200:192.168.0.200:255.255.255.0 debug"
CONFIG_KEXEC=y
CONFIG_CPU_FREQ=y
-CONFIG_CPU_FREQ_DEBUG=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
CONFIG_CPU_FREQ_GOV_USERSPACE=m
CONFIG_CPU_FREQ_GOV_ONDEMAND=m
@@ -51,7 +49,6 @@ CONFIG_SYN_COOKIES=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
@@ -109,7 +106,6 @@ CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
CONFIG_NF_CONNTRACK_IPV4=m
-CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_AH=m
@@ -118,7 +114,6 @@ CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
@@ -133,7 +128,6 @@ CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
CONFIG_NF_CONNTRACK_IPV6=m
-CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
@@ -144,15 +138,12 @@ CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_HL=m
-CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
CONFIG_IP6_NF_RAW=m
CONFIG_BRIDGE=m
CONFIG_BT=y
-CONFIG_BT_L2CAP=y
-CONFIG_BT_SCO=y
CONFIG_BT_RFCOMM=y
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=y
@@ -174,7 +165,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_FW_LOADER=m
CONFIG_CONNECTOR=m
CONFIG_MTD=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -189,11 +179,8 @@ CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_NETDEVICES=y
CONFIG_DUMMY=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_WLAN is not set
CONFIG_PPP=m
CONFIG_PPP_MULTILINK=y
@@ -282,14 +269,12 @@ CONFIG_SND_PXA2XX_SOC=y
# CONFIG_USB_HID is not set
CONFIG_HID_APPLE=m
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_GADGET=y
CONFIG_USB_PXA27X=y
CONFIG_USB_ETH=m
# CONFIG_USB_ETH_RNDIS is not set
CONFIG_MMC=y
-CONFIG_MMC_UNSAFE_RESUME=y
CONFIG_SDIO_UART=m
CONFIG_MMC_PXA=y
CONFIG_MMC_SPI=y
@@ -311,8 +296,6 @@ CONFIG_REISERFS_FS_XATTR=y
CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_XFS_FS=m
-CONFIG_INOTIFY=y
-CONFIG_AUTOFS_FS=y
CONFIG_AUTOFS4_FS=y
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
@@ -385,10 +368,8 @@ CONFIG_DEBUG_KERNEL=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_PROVE_LOCKING=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_FTRACE is not set
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_TEST=m
diff --git a/arch/arm/configs/footbridge_defconfig b/arch/arm/configs/footbridge_defconfig
index 87e020f303ab..3a7938f244e5 100644
--- a/arch/arm/configs/footbridge_defconfig
+++ b/arch/arm/configs/footbridge_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_LOG_BUF_SHIFT=14
diff --git a/arch/arm/configs/gemini_defconfig b/arch/arm/configs/gemini_defconfig
index d2d75fa664a6..2a63fa10c813 100644
--- a/arch/arm/configs/gemini_defconfig
+++ b/arch/arm/configs/gemini_defconfig
@@ -32,6 +32,7 @@ CONFIG_BLK_DEV_RAM_SIZE=16384
CONFIG_BLK_DEV_SD=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_ATA=y
+CONFIG_PATA_FTIDE010=y
CONFIG_INPUT_EVDEV=y
CONFIG_KEYBOARD_GPIO=y
# CONFIG_INPUT_MOUSE is not set
@@ -55,8 +56,8 @@ CONFIG_LEDS_GPIO=y
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_RTC_CLASS=y
-CONFIG_RTC_DRV_GEMINI=y
CONFIG_DMADEVICES=y
+CONFIG_AMBA_PL08X=y
# CONFIG_DNOTIFY is not set
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
diff --git a/arch/arm/configs/h5000_defconfig b/arch/arm/configs/h5000_defconfig
index 37903e3f0efc..e90d1dfeb188 100644
--- a/arch/arm/configs/h5000_defconfig
+++ b/arch/arm/configs/h5000_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
@@ -31,12 +30,10 @@ CONFIG_IP_PNP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -53,14 +50,12 @@ CONFIG_LEGACY_PTY_COUNT=32
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB_GADGET=y
CONFIG_USB_ETH=m
# CONFIG_USB_ETH_RNDIS is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_SA1100=y
CONFIG_EXT2_FS=y
-CONFIG_INOTIFY=y
# CONFIG_PROC_PAGE_MONITOR is not set
CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y
@@ -70,7 +65,6 @@ CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_KERNEL=y
# CONFIG_SCHED_DEBUG is not set
# CONFIG_DEBUG_BUGVERBOSE is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
# CONFIG_FTRACE is not set
CONFIG_CRYPTO=y
CONFIG_CRYPTO_HMAC=y
diff --git a/arch/arm/configs/hackkit_defconfig b/arch/arm/configs/hackkit_defconfig
index bed804729929..742d18cdabde 100644
--- a/arch/arm/configs/hackkit_defconfig
+++ b/arch/arm/configs/hackkit_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
@@ -22,7 +21,6 @@ CONFIG_SYN_COOKIES=y
CONFIG_MTD=y
CONFIG_MTD_DEBUG=y
CONFIG_MTD_DEBUG_VERBOSE=3
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
@@ -44,6 +42,5 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
# CONFIG_CRC32 is not set
diff --git a/arch/arm/configs/imote2_defconfig b/arch/arm/configs/imote2_defconfig
index 7f479cdb3479..f204017c26b9 100644
--- a/arch/arm/configs/imote2_defconfig
+++ b/arch/arm/configs/imote2_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
@@ -43,7 +42,6 @@ CONFIG_SYN_COOKIES=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
@@ -101,7 +99,6 @@ CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
CONFIG_NF_CONNTRACK_IPV4=m
-CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_AH=m
@@ -110,7 +107,6 @@ CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
@@ -125,7 +121,6 @@ CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
CONFIG_NF_CONNTRACK_IPV6=m
-CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
@@ -136,7 +131,6 @@ CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_HL=m
-CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
@@ -154,7 +148,6 @@ CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_AFS_PARTS=y
CONFIG_MTD_AR7_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -169,11 +162,8 @@ CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_NETDEVICES=y
CONFIG_DUMMY=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_WLAN is not set
CONFIG_PPP=m
CONFIG_PPP_MULTILINK=y
@@ -258,14 +248,12 @@ CONFIG_SND_SOC=y
CONFIG_SND_PXA2XX_SOC=y
# CONFIG_USB_HID is not set
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_GADGET=y
CONFIG_USB_PXA27X=y
CONFIG_USB_ETH=m
# CONFIG_USB_ETH_RNDIS is not set
CONFIG_MMC=y
-CONFIG_MMC_UNSAFE_RESUME=y
CONFIG_SDIO_UART=m
CONFIG_MMC_PXA=y
CONFIG_MMC_SPI=y
@@ -282,8 +270,6 @@ CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_PXA=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=m
-CONFIG_INOTIFY=y
-CONFIG_AUTOFS_FS=y
CONFIG_AUTOFS4_FS=y
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
@@ -356,10 +342,8 @@ CONFIG_DEBUG_KERNEL=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_PROVE_LOCKING=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_FTRACE is not set
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_TEST=m
diff --git a/arch/arm/configs/imx_v4_v5_defconfig b/arch/arm/configs/imx_v4_v5_defconfig
index 5f013c9fc1ed..ca0f13cafe38 100644
--- a/arch/arm/configs/imx_v4_v5_defconfig
+++ b/arch/arm/configs/imx_v4_v5_defconfig
@@ -45,7 +45,6 @@ CONFIG_IP_PNP_DHCP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig
index bb6fa568b620..32acac9ab81a 100644
--- a/arch/arm/configs/imx_v6_v7_defconfig
+++ b/arch/arm/configs/imx_v6_v7_defconfig
@@ -51,10 +51,14 @@ CONFIG_PREEMPT_VOLUNTARY=y
CONFIG_AEABI=y
CONFIG_HIGHMEM=y
CONFIG_CMA=y
+CONFIG_FORCE_MAX_ZONEORDER=14
CONFIG_CMDLINE="noinitrd console=ttymxc0,115200"
CONFIG_KEXEC=y
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
CONFIG_ARM_IMX6Q_CPUFREQ=y
CONFIG_CPU_IDLE=y
CONFIG_VFP=y
@@ -183,6 +187,7 @@ CONFIG_SERIAL_FSL_LPUART=y
CONFIG_SERIAL_FSL_LPUART_CONSOLE=y
# CONFIG_I2C_COMPAT is not set
CONFIG_I2C_CHARDEV=y
+CONFIG_I2C_MUX=y
CONFIG_I2C_MUX_GPIO=y
# CONFIG_I2C_HELPER_AUTO is not set
CONFIG_I2C_ALGOPCF=m
@@ -190,12 +195,14 @@ CONFIG_I2C_ALGOPCA=m
CONFIG_I2C_GPIO=y
CONFIG_I2C_IMX=y
CONFIG_SPI=y
+CONFIG_SPI_GPIO=y
CONFIG_SPI_IMX=y
CONFIG_SPI_FSL_DSPI=y
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_MC9S08DZ60=y
CONFIG_GPIO_PCA953X=y
CONFIG_GPIO_STMPE=y
+CONFIG_GPIO_74X164=y
CONFIG_POWER_RESET=y
CONFIG_POWER_RESET_IMX=y
CONFIG_POWER_RESET_SYSCON=y
@@ -204,6 +211,7 @@ CONFIG_POWER_SUPPLY=y
CONFIG_SENSORS_GPIO_FAN=y
CONFIG_SENSORS_IIO_HWMON=y
CONFIG_THERMAL=y
+CONFIG_THERMAL_WRITABLE_TRIPS=y
CONFIG_CPU_THERMAL=y
CONFIG_IMX_THERMAL=y
CONFIG_WATCHDOG=y
@@ -222,15 +230,21 @@ CONFIG_REGULATOR_MC13892=y
CONFIG_REGULATOR_PFUZE100=y
CONFIG_MEDIA_SUPPORT=y
CONFIG_MEDIA_CAMERA_SUPPORT=y
-CONFIG_MEDIA_RC_SUPPORT=y
+CONFIG_RC_CORE=y
+CONFIG_MEDIA_CONTROLLER=y
+CONFIG_VIDEO_V4L2_SUBDEV_API=y
CONFIG_RC_DEVICES=y
CONFIG_IR_GPIO_CIR=y
CONFIG_MEDIA_USB_SUPPORT=y
CONFIG_USB_VIDEO_CLASS=m
CONFIG_V4L_PLATFORM_DRIVERS=y
+CONFIG_VIDEO_MUX=y
CONFIG_SOC_CAMERA=y
CONFIG_V4L_MEM2MEM_DRIVERS=y
-CONFIG_VIDEO_CODA=y
+CONFIG_VIDEO_CODA=m
+# CONFIG_MEDIA_SUBDRV_AUTOSELECT is not set
+CONFIG_VIDEO_ADV7180=m
+CONFIG_VIDEO_OV5640=m
CONFIG_SOC_CAMERA_OV2640=y
CONFIG_IMX_IPUV3_CORE=y
CONFIG_DRM=y
@@ -340,7 +354,11 @@ CONFIG_FSL_EDMA=y
CONFIG_IMX_SDMA=y
CONFIG_MXS_DMA=y
CONFIG_STAGING=y
+CONFIG_STAGING_MEDIA=y
+CONFIG_VIDEO_IMX_MEDIA=y
+CONFIG_COMMON_CLK_PWM=y
CONFIG_IIO=y
+CONFIG_IMX7D_ADC=y
CONFIG_VF610_ADC=y
CONFIG_MPL3115=y
CONFIG_PWM=y
@@ -378,6 +396,7 @@ CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_UTF8=y
CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_FS=y
CONFIG_MAGIC_SYSRQ=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_PROVE_LOCKING=y
diff --git a/arch/arm/configs/iop13xx_defconfig b/arch/arm/configs/iop13xx_defconfig
index 652b7bd9e544..a73b6a31a4ab 100644
--- a/arch/arm/configs/iop13xx_defconfig
+++ b/arch/arm/configs/iop13xx_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -30,7 +29,6 @@ CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
CONFIG_IPV6=y
# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
@@ -38,7 +36,6 @@ CONFIG_IPV6=y
# CONFIG_IPV6_SIT is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y
CONFIG_MTD_REDBOOT_PARTS_READONLY=y
@@ -79,7 +76,6 @@ CONFIG_DMADEVICES=y
CONFIG_INTEL_IOP_ADMA=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
-CONFIG_INOTIFY=y
CONFIG_TMPFS=y
CONFIG_ECRYPT_FS=y
CONFIG_JFFS2_FS=y
diff --git a/arch/arm/configs/iop32x_defconfig b/arch/arm/configs/iop32x_defconfig
index aa3af0a6b8f7..f63362b665eb 100644
--- a/arch/arm/configs/iop32x_defconfig
+++ b/arch/arm/configs/iop32x_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_LOG_BUF_SHIFT=14
@@ -26,7 +25,6 @@ CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
CONFIG_IPV6=y
# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
@@ -34,11 +32,9 @@ CONFIG_IPV6=y
# CONFIG_IPV6_SIT is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y
CONFIG_MTD_REDBOOT_PARTS_READONLY=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
@@ -91,7 +87,6 @@ CONFIG_INTEL_IOP_ADMA=y
CONFIG_NET_DMA=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
-CONFIG_INOTIFY=y
CONFIG_TMPFS=y
CONFIG_ECRYPT_FS=y
CONFIG_JFFS2_FS=y
diff --git a/arch/arm/configs/iop33x_defconfig b/arch/arm/configs/iop33x_defconfig
index 713faeee8cf4..d22f832ccfd6 100644
--- a/arch/arm/configs/iop33x_defconfig
+++ b/arch/arm/configs/iop33x_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_LOG_BUF_SHIFT=14
@@ -24,7 +23,6 @@ CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
CONFIG_IPV6=y
# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
@@ -32,11 +30,9 @@ CONFIG_IPV6=y
# CONFIG_IPV6_SIT is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y
CONFIG_MTD_REDBOOT_PARTS_READONLY=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -73,7 +69,6 @@ CONFIG_INTEL_IOP_ADMA=y
CONFIG_NET_DMA=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
-CONFIG_INOTIFY=y
CONFIG_TMPFS=y
CONFIG_CRAMFS=y
CONFIG_NFS_FS=y
@@ -84,7 +79,6 @@ CONFIG_NFSD_V3=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_DEBUG_USER=y
CONFIG_DEBUG_LL=y
CONFIG_DEBUG_LL_UART_8250=y
diff --git a/arch/arm/configs/ixp4xx_defconfig b/arch/arm/configs/ixp4xx_defconfig
index bb910d9df6c1..8c3c99cd6de9 100644
--- a/arch/arm/configs/ixp4xx_defconfig
+++ b/arch/arm/configs/ixp4xx_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_LOG_BUF_SHIFT=14
@@ -50,7 +49,6 @@ CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
CONFIG_IP_VS=m
@@ -63,13 +61,11 @@ CONFIG_IP_VS_LBLC=m
CONFIG_IP_VS_LBLCR=m
CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
-CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
@@ -85,12 +81,8 @@ CONFIG_ATALK=m
CONFIG_DEV_APPLETALK=m
CONFIG_IPDDP=m
CONFIG_IPDDP_ENCAP=y
-CONFIG_IPDDP_DECAP=y
CONFIG_X25=m
CONFIG_LAPB=m
-CONFIG_ECONET=m
-CONFIG_ECONET_AUNUDP=y
-CONFIG_ECONET_NATIVE=y
CONFIG_WAN_ROUTER=m
CONFIG_NET_SCHED=y
CONFIG_NET_SCH_CBQ=m
@@ -114,9 +106,7 @@ CONFIG_NET_ACT_POLICE=y
CONFIG_NET_PKTGEN=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
@@ -170,7 +160,6 @@ CONFIG_SENSORS_W83781D=y
CONFIG_WATCHDOG=y
CONFIG_IXP4XX_WATCHDOG=y
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_UHCI_HCD=y
@@ -192,7 +181,6 @@ CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_POSIX_ACL=y
-CONFIG_INOTIFY=y
CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y
CONFIG_NFS_FS=y
@@ -201,6 +189,5 @@ CONFIG_ROOT_NFS=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
CONFIG_DEBUG_LL_UART_8250=y
diff --git a/arch/arm/configs/jornada720_defconfig b/arch/arm/configs/jornada720_defconfig
index 9056284139be..65d37ad6e6b8 100644
--- a/arch/arm/configs/jornada720_defconfig
+++ b/arch/arm/configs/jornada720_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_SYSFS_DEPRECATED_V2=y
@@ -19,7 +18,6 @@ CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
CONFIG_IRDA=m
@@ -35,8 +33,6 @@ CONFIG_PATA_PCMCIA=y
CONFIG_NETDEVICES=y
CONFIG_DUMMY=y
CONFIG_NET_ETHERNET=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_NET_PCMCIA=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=640
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=240
@@ -58,12 +54,10 @@ CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_VGA_CONSOLE is not set
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_SA1100=y
CONFIG_EXT2_FS=y
-CONFIG_INOTIFY=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
# CONFIG_NETWORK_FILESYSTEMS is not set
@@ -106,8 +100,6 @@ CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
CONFIG_DEBUG_KERNEL=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_FTRACE is not set
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/arm/configs/keystone_defconfig b/arch/arm/configs/keystone_defconfig
index 1331f6dc456a..f907869e0ddc 100644
--- a/arch/arm/configs/keystone_defconfig
+++ b/arch/arm/configs/keystone_defconfig
@@ -112,6 +112,9 @@ CONFIG_IP_NF_ARP_MANGLE=y
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP_SCTP=y
CONFIG_VLAN_8021Q=y
+CONFIG_CAN=m
+CONFIG_CAN_C_CAN=m
+CONFIG_CAN_C_CAN_PLATFORM=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
@@ -156,6 +159,8 @@ CONFIG_POWER_RESET_KEYSTONE=y
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
CONFIG_DAVINCI_WATCHDOG=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_USB=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
CONFIG_USB_MON=y
@@ -164,6 +169,8 @@ CONFIG_USB_STORAGE=y
CONFIG_USB_DWC3=y
CONFIG_NOP_USB_XCEIV=y
CONFIG_KEYSTONE_USB_PHY=y
+CONFIG_MMC=y
+CONFIG_MMC_OMAP_HS=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_GPIO=y
@@ -174,12 +181,18 @@ CONFIG_LEDS_TRIGGER_BACKLIGHT=y
CONFIG_LEDS_TRIGGER_GPIO=y
CONFIG_DMADEVICES=y
CONFIG_TI_EDMA=y
+CONFIG_MAILBOX=y
+CONFIG_TI_MESSAGE_MANAGER=y
CONFIG_SOC_TI=y
CONFIG_KEYSTONE_NAVIGATOR_QMSS=y
CONFIG_KEYSTONE_NAVIGATOR_DMA=y
+CONFIG_TI_SCI_PM_DOMAINS=y
CONFIG_MEMORY=y
CONFIG_TI_AEMIF=y
CONFIG_KEYSTONE_IRQ=y
+CONFIG_RESET_TI_SCI=m
+CONFIG_RESET_TI_SYSCON=m
+CONFIG_TI_SCI_PROTOCOL=y
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_FANOTIFY=y
diff --git a/arch/arm/configs/ks8695_defconfig b/arch/arm/configs/ks8695_defconfig
index 47c488379f8f..b8b91d790e9b 100644
--- a/arch/arm/configs/ks8695_defconfig
+++ b/arch/arm/configs/ks8695_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
@@ -28,14 +27,11 @@ CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
@@ -46,8 +42,6 @@ CONFIG_BLK_DEV_RAM_SIZE=8192
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_PRISM54=m
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
# CONFIG_INPUT_KEYBOARD is not set
@@ -58,7 +52,6 @@ CONFIG_SERIAL_KS8695_CONSOLE=y
# CONFIG_HWMON is not set
# CONFIG_VGA_CONSOLE is not set
CONFIG_EXT2_FS=y
-CONFIG_INOTIFY=y
CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y
CONFIG_JFFS2_SUMMARY=y
diff --git a/arch/arm/configs/lart_defconfig b/arch/arm/configs/lart_defconfig
index 8fc6fd09eb6d..b6ddb9884326 100644
--- a/arch/arm/configs/lart_defconfig
+++ b/arch/arm/configs/lart_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
@@ -31,8 +30,6 @@ CONFIG_SA1100_FIR=m
CONFIG_MTD=y
CONFIG_MTD_DEBUG=y
CONFIG_MTD_DEBUG_VERBOSE=1
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_LART=y
CONFIG_BLK_DEV_RAM=y
diff --git a/arch/arm/configs/lpc18xx_defconfig b/arch/arm/configs/lpc18xx_defconfig
index 2de1bf0e497e..23df2518203d 100644
--- a/arch/arm/configs/lpc18xx_defconfig
+++ b/arch/arm/configs/lpc18xx_defconfig
@@ -44,7 +44,6 @@ CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
diff --git a/arch/arm/configs/lpc32xx_defconfig b/arch/arm/configs/lpc32xx_defconfig
index 6ba430d2b5b2..e15fa5f168bb 100644
--- a/arch/arm/configs/lpc32xx_defconfig
+++ b/arch/arm/configs/lpc32xx_defconfig
@@ -112,7 +112,7 @@ CONFIG_GPIO_SX150X=y
CONFIG_GPIO_74X164=y
CONFIG_GPIO_MAX7301=y
CONFIG_GPIO_MC33880=y
-CONFIG_GPIO_MCP23S08=y
+CONFIG_PINCTRL_MCP23S08=y
CONFIG_SENSORS_DS620=y
CONFIG_SENSORS_MAX6639=y
CONFIG_WATCHDOG=y
diff --git a/arch/arm/configs/lpd270_defconfig b/arch/arm/configs/lpd270_defconfig
index a9dd1e93b556..3a4d0e64cd6e 100644
--- a/arch/arm/configs/lpd270_defconfig
+++ b/arch/arm/configs/lpd270_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_SLAB=y
@@ -21,9 +20,7 @@ CONFIG_IPV6=y
# CONFIG_INET6_XFRM_MODE_BEET is not set
# CONFIG_IPV6_SIT is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -50,7 +47,6 @@ CONFIG_SND=y
# CONFIG_SND_SUPPORT_OLD_API is not set
CONFIG_SND_PXA2XX_AC97=y
CONFIG_EXT2_FS=y
-CONFIG_INOTIFY=y
CONFIG_MSDOS_FS=y
CONFIG_JFFS2_FS=y
CONFIG_NFS_FS=y
@@ -60,5 +56,4 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
diff --git a/arch/arm/configs/lubbock_defconfig b/arch/arm/configs/lubbock_defconfig
index c4ba27458baa..4ce2da2e76fa 100644
--- a/arch/arm/configs/lubbock_defconfig
+++ b/arch/arm/configs/lubbock_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_MODULES=y
@@ -20,9 +19,7 @@ CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IPV6 is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -52,5 +49,4 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
diff --git a/arch/arm/configs/magician_defconfig b/arch/arm/configs/magician_defconfig
index a5b4920cd6d4..ec5674c229a3 100644
--- a/arch/arm/configs/magician_defconfig
+++ b/arch/arm/configs/magician_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
@@ -35,7 +34,6 @@ CONFIG_IP_PNP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_IRDA=m
@@ -48,8 +46,6 @@ CONFIG_IRDA_DEBUG=y
CONFIG_IRTTY_SIR=m
CONFIG_PXA_FICP=m
CONFIG_BT=m
-CONFIG_BT_L2CAP=m
-CONFIG_BT_SCO=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
@@ -60,17 +56,12 @@ CONFIG_BT_HCIBTUSB=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_PHYSMAP=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_NETDEVICES=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_PPP=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_DEFLATE=m
@@ -111,7 +102,6 @@ CONFIG_LCD_CLASS_DEVICE=y
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_GENERIC is not set
CONFIG_BACKLIGHT_PWM=y
-CONFIG_DISPLAY_SUPPORT=y
# CONFIG_VGA_CONSOLE is not set
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
@@ -125,9 +115,7 @@ CONFIG_SND_PCM_OSS=m
# CONFIG_SND_USB is not set
CONFIG_SND_SOC=m
CONFIG_SND_PXA2XX_SOC=m
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_MON=m
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_GADGET=y
@@ -152,7 +140,6 @@ CONFIG_RTC_CLASS=y
CONFIG_RTC_DEBUG=y
CONFIG_RTC_DRV_PXA=y
CONFIG_EXT2_FS=y
-CONFIG_INOTIFY=y
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_TMPFS=y
@@ -172,9 +159,7 @@ CONFIG_DEBUG_KERNEL=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_TIMER_STATS=y
# CONFIG_DEBUG_PREEMPT is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
CONFIG_CRYPTO=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/arm/configs/mainstone_defconfig b/arch/arm/configs/mainstone_defconfig
index e8d26b805be6..26499b697f9f 100644
--- a/arch/arm/configs/mainstone_defconfig
+++ b/arch/arm/configs/mainstone_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_MODULES=y
@@ -18,9 +17,7 @@ CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IPV6 is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -50,5 +47,4 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
diff --git a/arch/arm/configs/mini2440_defconfig b/arch/arm/configs/mini2440_defconfig
index 0b02e4f43c6a..cf7dcb2c86e6 100644
--- a/arch/arm/configs/mini2440_defconfig
+++ b/arch/arm/configs/mini2440_defconfig
@@ -1,10 +1,7 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_RELAY=y
-CONFIG_UTS_NS=y
-CONFIG_IPC_NS=y
CONFIG_BLK_DEV_INITRD=y
# CONFIG_COMPAT_BRK is not set
CONFIG_MODULES=y
@@ -13,19 +10,22 @@ CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_BLK_DEV_INTEGRITY=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_BSD_DISKLABEL=y
+CONFIG_MINIX_SUBPARTITION=y
+CONFIG_SOLARIS_X86_PARTITION=y
+CONFIG_UNIXWARE_DISKLABEL=y
+CONFIG_LDM_PARTITION=y
CONFIG_ARCH_S3C24XX=y
# CONFIG_CPU_S3C2410 is not set
CONFIG_CPU_S3C2440=y
+CONFIG_MACH_MINI2440=y
CONFIG_S3C_ADC=y
CONFIG_S3C24XX_PWM=y
-CONFIG_MACH_MINI2440=y
CONFIG_AEABI=y
-# CONFIG_OABI_COMPAT is not set
CONFIG_KEXEC=y
CONFIG_CPU_IDLE=y
-CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_MISC=m
-CONFIG_PM=y
CONFIG_APM_EMULATION=y
CONFIG_NET=y
CONFIG_PACKET=y
@@ -49,7 +49,6 @@ CONFIG_SYN_COOKIES=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
CONFIG_INET_DIAG=m
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
@@ -58,8 +57,6 @@ CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
CONFIG_NET_PKTGEN=m
CONFIG_BT=m
-CONFIG_BT_L2CAP=m
-CONFIG_BT_SCO=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
@@ -69,7 +66,6 @@ CONFIG_BT_HIDP=m
CONFIG_BT_HCIBTUSB=m
CONFIG_BT_HCIBTSDIO=m
CONFIG_BT_HCIUART=m
-CONFIG_BT_HCIUART_H4=y
CONFIG_BT_HCIUART_BCSP=y
CONFIG_BT_HCIUART_LL=y
CONFIG_BT_HCIBCM203X=m
@@ -77,7 +73,6 @@ CONFIG_BT_HCIBPA10X=m
CONFIG_BT_HCIBFUSB=m
CONFIG_BT_HCIVHCI=m
CONFIG_CFG80211=m
-CONFIG_CFG80211_REG_DEBUG=y
CONFIG_MAC80211=m
CONFIG_MAC80211_MESH=y
CONFIG_MAC80211_LEDS=y
@@ -85,10 +80,7 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_CONNECTOR=m
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_FTL=y
CONFIG_NFTL=y
@@ -111,6 +103,7 @@ CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=65536
CONFIG_CDROM_PKTCDVD=m
CONFIG_SENSORS_TSL2550=m
+CONFIG_EEPROM_AT24=y
CONFIG_SCSI=m
# CONFIG_SCSI_PROC_FS is not set
CONFIG_BLK_DEV_SD=m
@@ -118,10 +111,15 @@ CONFIG_CHR_DEV_SG=m
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_NETDEVICES=y
CONFIG_TUN=m
-CONFIG_NET_ETHERNET=y
CONFIG_DM9000=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
+CONFIG_PPP=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPP_FILTER=y
+CONFIG_PPP_MPPE=m
+CONFIG_PPP_MULTILINK=y
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
CONFIG_HOSTAP=m
CONFIG_HOSTAP_FIRMWARE=y
CONFIG_HOSTAP_FIRMWARE_NVRAM=y
@@ -129,14 +127,6 @@ CONFIG_LIBERTAS=m
CONFIG_LIBERTAS_SDIO=m
CONFIG_ZD1211RW=m
CONFIG_ZD1211RW_DEBUG=y
-CONFIG_PPP=m
-CONFIG_PPP_MULTILINK=y
-CONFIG_PPP_FILTER=y
-CONFIG_PPP_ASYNC=m
-CONFIG_PPP_SYNC_TTY=m
-CONFIG_PPP_DEFLATE=m
-CONFIG_PPP_BSDCOMP=m
-CONFIG_PPP_MPPE=m
CONFIG_INPUT_FF_MEMLESS=y
CONFIG_INPUT_EVDEV=y
CONFIG_INPUT_EVBUG=m
@@ -144,10 +134,10 @@ CONFIG_INPUT_EVBUG=m
CONFIG_KEYBOARD_GPIO=y
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_SERIO_RAW=y
-CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_LEGACY_PTY_COUNT=128
CONFIG_SERIAL_SAMSUNG=y
CONFIG_SERIAL_SAMSUNG_CONSOLE=y
-CONFIG_LEGACY_PTY_COUNT=128
+CONFIG_SERIAL_DEV_BUS=m
CONFIG_IPMI_HANDLER=m
CONFIG_IPMI_DEVICE_INTERFACE=m
CONFIG_IPMI_SI=m
@@ -158,7 +148,6 @@ CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_S3C2410=y
CONFIG_I2C_SIMTEC=y
-CONFIG_EEPROM_AT24=y
CONFIG_SPI=y
CONFIG_SPI_S3C24XX=y
CONFIG_SPI_SPIDEV=y
@@ -167,7 +156,6 @@ CONFIG_SENSORS_LM75=y
CONFIG_THERMAL=m
CONFIG_WATCHDOG=y
CONFIG_S3C2410_WATCHDOG=y
-CONFIG_VIDEO_OUTPUT_CONTROL=y
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_MODE_HELPERS=y
@@ -179,14 +167,9 @@ CONFIG_LCD_PLATFORM=y
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_GENERIC is not set
CONFIG_BACKLIGHT_PWM=y
-CONFIG_DISPLAY_SUPPORT=y
-# CONFIG_VGA_CONSOLE is not set
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
-CONFIG_FONTS=y
-CONFIG_FONT_8x8=y
-CONFIG_FONT_MINI_4x6=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
@@ -205,10 +188,7 @@ CONFIG_SND_USB_AUDIO=m
CONFIG_SND_USB_CAIAQ=m
CONFIG_SND_USB_CAIAQ_INPUT=y
CONFIG_SND_SOC=y
-CONFIG_SND_S3C24XX_SOC=y
CONFIG_HIDRAW=y
-CONFIG_HID_PID=y
-CONFIG_USB_HIDDEV=y
CONFIG_HID_GYRATION=y
CONFIG_HID_NTRIG=y
CONFIG_HID_PANTHERLORD=y
@@ -217,8 +197,9 @@ CONFIG_HID_SAMSUNG=y
CONFIG_HID_SONY=y
CONFIG_HID_SUNPLUS=y
CONFIG_HID_TOPSEED=y
+CONFIG_HID_PID=y
+CONFIG_USB_HIDDEV=y
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_ACM=m
CONFIG_USB_WDM=m
@@ -230,13 +211,12 @@ CONFIG_USB_STORAGE_SDDR09=m
CONFIG_USB_STORAGE_SDDR55=m
CONFIG_USB_STORAGE_JUMPSHOT=m
CONFIG_USB_STORAGE_ALAUDA=m
-CONFIG_USB_LIBUSUAL=y
CONFIG_USB_SERIAL=m
CONFIG_USB_SERIAL_CP210X=m
CONFIG_USB_SERIAL_FTDI_SIO=m
CONFIG_USB_SERIAL_SPCP8X5=m
CONFIG_USB_GADGET=y
-CONFIG_USB_GADGET_S3C2410=y
+CONFIG_USB_S3C2410=y
CONFIG_USB_ZERO=m
CONFIG_USB_ETH=m
CONFIG_USB_GADGETFS=m
@@ -248,7 +228,6 @@ CONFIG_SDIO_UART=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SPI=y
CONFIG_MMC_S3C=y
-CONFIG_LEDS_CLASS=y
CONFIG_LEDS_S3C24XX=y
CONFIG_LEDS_GPIO=y
CONFIG_LEDS_TRIGGER_TIMER=y
@@ -259,6 +238,7 @@ CONFIG_RTC_CLASS=y
CONFIG_RTC_INTF_DEV_UIE_EMUL=y
CONFIG_RTC_DRV_S3C=y
CONFIG_DMADEVICES=y
+CONFIG_S3C24XX_DMAC=y
CONFIG_EXT2_FS=m
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
@@ -266,30 +246,19 @@ CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
-CONFIG_INOTIFY=y
-CONFIG_AUTOFS_FS=y
CONFIG_AUTOFS4_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
-CONFIG_CONFIGFS_FS=m
CONFIG_JFFS2_FS=y
CONFIG_CRAMFS=y
CONFIG_ROMFS_FS=y
CONFIG_ROMFS_BACKED_BY_BOTH=y
CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
-CONFIG_PARTITION_ADVANCED=y
-CONFIG_BSD_DISKLABEL=y
-CONFIG_MINIX_SUBPARTITION=y
-CONFIG_SOLARIS_X86_PARTITION=y
-CONFIG_UNIXWARE_DISKLABEL=y
-CONFIG_LDM_PARTITION=y
-CONFIG_EFI_PARTITION=y
CONFIG_NLS_DEFAULT="cp437"
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_737=m
@@ -329,24 +298,17 @@ CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
+CONFIG_DEBUG_INFO=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_STRIP_ASM_SYMS=y
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_KERNEL=y
# CONFIG_SCHED_DEBUG is not set
-CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_DEBUG_USER=y
-CONFIG_KEYS=y
-CONFIG_CRYPTO_FIPS=y
-CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_CCM=m
-CONFIG_CRYPTO_GCM=m
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_LRW=m
@@ -360,11 +322,9 @@ CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_RMD256=m
CONFIG_CRYPTO_RMD320=m
-CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m
-CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=y
CONFIG_CRYPTO_BLOWFISH=m
@@ -379,7 +339,8 @@ CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_DEFLATE=m
-CONFIG_CRYPTO_ZLIB=m
CONFIG_CRYPTO_LZO=m
-CONFIG_CRC_T10DIF=y
CONFIG_LIBCRC32C=m
+CONFIG_FONTS=y
+CONFIG_FONT_8x8=y
+CONFIG_FONT_MINI_4x6=y
diff --git a/arch/arm/configs/mmp2_defconfig b/arch/arm/configs/mmp2_defconfig
index f1cb95e58af0..1eeee7f11d91 100644
--- a/arch/arm/configs/mmp2_defconfig
+++ b/arch/arm/configs/mmp2_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_SYSFS_DEPRECATED_V2=y
@@ -23,7 +22,6 @@ CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_PNP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
@@ -34,12 +32,9 @@ CONFIG_MTD_NAND=y
CONFIG_MTD_ONENAND=y
CONFIG_MTD_ONENAND_GENERIC=y
# CONFIG_BLK_DEV is not set
-# CONFIG_MISC_DEVICES is not set
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SMC91X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -60,13 +55,11 @@ CONFIG_LCD_CLASS_DEVICE=y
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_MAX8925=y
# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_MAX8925=y
CONFIG_MMC=y
# CONFIG_DNOTIFY is not set
-CONFIG_INOTIFY=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_EXT2_FS=y
@@ -87,12 +80,10 @@ CONFIG_DEBUG_FS=y
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_PREEMPT is not set
CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_DYNAMIC_DEBUG is not set
CONFIG_DEBUG_USER=y
CONFIG_DEBUG_LL=y
CONFIG_DEBUG_MMP_UART3=y
CONFIG_EARLY_PRINTK=y
-CONFIG_DEBUG_ERRORS=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRC_CCITT=y
diff --git a/arch/arm/configs/moxart_defconfig b/arch/arm/configs/moxart_defconfig
index b2ddd534867f..2da0d9ee2107 100644
--- a/arch/arm/configs/moxart_defconfig
+++ b/arch/arm/configs/moxart_defconfig
@@ -36,7 +36,6 @@ CONFIG_IP_PNP_DHCP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
diff --git a/arch/arm/configs/mps2_defconfig b/arch/arm/configs/mps2_defconfig
index 19d119f5b77e..0bcdec7cc169 100644
--- a/arch/arm/configs/mps2_defconfig
+++ b/arch/arm/configs/mps2_defconfig
@@ -35,7 +35,6 @@ CONFIG_IP_PNP_DHCP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index 2685e03600b1..0cacdbf84a71 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -104,13 +104,11 @@ CONFIG_ARCH_TEGRA_2x_SOC=y
CONFIG_ARCH_TEGRA_3x_SOC=y
CONFIG_ARCH_TEGRA_114_SOC=y
CONFIG_ARCH_TEGRA_124_SOC=y
-CONFIG_TEGRA_EMC_SCALING_ENABLE=y
CONFIG_ARCH_UNIPHIER=y
CONFIG_ARCH_U8500=y
CONFIG_MACH_HREFV60=y
CONFIG_MACH_SNOWBALL=y
CONFIG_ARCH_VEXPRESS=y
-CONFIG_ARCH_VEXPRESS_CA9X4=y
CONFIG_ARCH_VEXPRESS_TC2_PM=y
CONFIG_ARCH_WM8850=y
CONFIG_ARCH_ZYNQ=y
@@ -202,6 +200,8 @@ CONFIG_MTD_BLOCK=y
CONFIG_MTD_M25P80=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_DENALI_DT=y
+CONFIG_MTD_NAND_OMAP2=y
+CONFIG_MTD_NAND_OMAP_BCH=y
CONFIG_MTD_NAND_ATMEL=y
CONFIG_MTD_NAND_BRCMNAND=y
CONFIG_MTD_NAND_VF610_NFC=y
@@ -229,6 +229,7 @@ CONFIG_ATA=y
CONFIG_SATA_AHCI=y
CONFIG_SATA_AHCI_PLATFORM=y
CONFIG_AHCI_BRCM=y
+CONFIG_AHCI_DM816=y
CONFIG_AHCI_ST=y
CONFIG_AHCI_IMX=y
CONFIG_AHCI_SUNXI=y
@@ -267,6 +268,7 @@ CONFIG_ICPLUS_PHY=y
CONFIG_REALTEK_PHY=y
CONFIG_MICREL_PHY=y
CONFIG_FIXED_PHY=y
+CONFIG_ROCKCHIP_PHY=y
CONFIG_USB_PEGASUS=y
CONFIG_USB_RTL8152=m
CONFIG_USB_USBNET=y
@@ -327,6 +329,7 @@ CONFIG_SERIAL_IMX_CONSOLE=y
CONFIG_SERIAL_SH_SCI=y
CONFIG_SERIAL_SH_SCI_NR_UARTS=20
CONFIG_SERIAL_SH_SCI_CONSOLE=y
+CONFIG_SERIAL_SH_SCI_DMA=y
CONFIG_SERIAL_MSM=y
CONFIG_SERIAL_MSM_CONSOLE=y
CONFIG_SERIAL_VT8500=y
@@ -452,6 +455,7 @@ CONFIG_SENSORS_NTC_THERMISTOR=m
CONFIG_SENSORS_PWM_FAN=m
CONFIG_SENSORS_INA2XX=m
CONFIG_CPU_THERMAL=y
+CONFIG_BRCMSTB_THERMAL=m
CONFIG_ROCKCHIP_THERMAL=y
CONFIG_RCAR_THERMAL=y
CONFIG_ARMADA_THERMAL=y
@@ -581,6 +585,7 @@ CONFIG_VIDEO_ADV7180=m
CONFIG_VIDEO_ML86V7667=m
CONFIG_DRM=y
CONFIG_DRM_I2C_ADV7511=m
+CONFIG_DRM_I2C_ADV7511_AUDIO=y
# CONFIG_DRM_I2C_CH7006 is not set
# CONFIG_DRM_I2C_SIL164 is not set
CONFIG_DRM_DUMB_VGA_DAC=m
@@ -600,7 +605,6 @@ CONFIG_ROCKCHIP_DW_MIPI_DSI=y
CONFIG_ROCKCHIP_INNO_HDMI=y
CONFIG_DRM_ATMEL_HLCDC=m
CONFIG_DRM_RCAR_DU=m
-CONFIG_DRM_RCAR_HDMI=y
CONFIG_DRM_RCAR_LVDS=y
CONFIG_DRM_SUN4I=m
CONFIG_DRM_TEGRA=y
@@ -647,9 +651,11 @@ CONFIG_SND_SOC_SMDK_WM8994_PCM=m
CONFIG_SND_SOC_SNOW=m
CONFIG_SND_SOC_SH4_FSI=m
CONFIG_SND_SOC_RCAR=m
-CONFIG_SND_SOC_RSRC_CARD=m
+CONFIG_SND_SIMPLE_SCU_CARD=m
CONFIG_SND_SUN4I_CODEC=m
CONFIG_SND_SOC_TEGRA=m
+CONFIG_SND_SOC_TEGRA20_I2S=m
+CONFIG_SND_SOC_TEGRA30_I2S=m
CONFIG_SND_SOC_TEGRA_RT5640=m
CONFIG_SND_SOC_TEGRA_WM8753=m
CONFIG_SND_SOC_TEGRA_WM8903=m
@@ -692,7 +698,6 @@ CONFIG_USB_CHIPIDEA_UDC=y
CONFIG_USB_CHIPIDEA_HOST=y
CONFIG_AB8500_USB=y
CONFIG_KEYSTONE_USB_PHY=y
-CONFIG_OMAP_USB3=y
CONFIG_USB_GPIO_VBUS=y
CONFIG_USB_ISP1301=y
CONFIG_USB_MSM_OTG=m
@@ -708,7 +713,7 @@ CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_MMC_SDHCI_OF_ARASAN=y
CONFIG_MMC_SDHCI_OF_AT91=y
-CONFIG_MMC_SDHCI_OF_ESDHC=m
+CONFIG_MMC_SDHCI_OF_ESDHC=y
CONFIG_MMC_SDHCI_ESDHC_IMX=y
CONFIG_MMC_SDHCI_DOVE=y
CONFIG_MMC_SDHCI_TEGRA=y
@@ -725,7 +730,6 @@ CONFIG_MMC_SDHCI_MSM=y
CONFIG_MMC_MVSDIO=y
CONFIG_MMC_SDHI=y
CONFIG_MMC_DW=y
-CONFIG_MMC_DW_IDMAC=y
CONFIG_MMC_DW_PLTFM=y
CONFIG_MMC_DW_EXYNOS=y
CONFIG_MMC_DW_ROCKCHIP=y
@@ -822,7 +826,6 @@ CONFIG_BCMA_DRIVER_GPIO=y
CONFIG_QCOM_GSBI=y
CONFIG_QCOM_PM=y
CONFIG_QCOM_SMEM=y
-CONFIG_QCOM_SMD=y
CONFIG_QCOM_SMD_RPM=y
CONFIG_QCOM_SMP2P=y
CONFIG_QCOM_SMSM=y
@@ -834,7 +837,6 @@ CONFIG_CHROME_PLATFORMS=y
CONFIG_STAGING_BOARD=y
CONFIG_CROS_EC_CHARDEV=m
CONFIG_COMMON_CLK_MAX77686=y
-CONFIG_COMMON_CLK_MAX77802=m
CONFIG_COMMON_CLK_RK808=m
CONFIG_COMMON_CLK_S2MPS11=m
CONFIG_APQ_MMCC_8084=y
@@ -930,12 +932,17 @@ CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_FS=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_LOCKUP_DETECTOR=y
-CONFIG_CRYPTO_DEV_TEGRA_AES=y
CONFIG_CPUFREQ_DT=y
CONFIG_KEYSTONE_IRQ=y
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_ST=y
+CONFIG_CRYPTO_USER=m
+CONFIG_CRYPTO_USER_API_HASH=m
+CONFIG_CRYPTO_USER_API_SKCIPHER=m
+CONFIG_CRYPTO_USER_API_RNG=m
+CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_DEV_MARVELL_CESA=m
+CONFIG_CRYPTO_DEV_EXYNOS_RNG=m
CONFIG_CRYPTO_DEV_S5P=m
CONFIG_CRYPTO_DEV_SUN4I_SS=m
CONFIG_CRYPTO_DEV_ROCKCHIP=m
diff --git a/arch/arm/configs/mv78xx0_defconfig b/arch/arm/configs/mv78xx0_defconfig
index a0345e1ce172..752e2e74de5b 100644
--- a/arch/arm/configs/mv78xx0_defconfig
+++ b/arch/arm/configs/mv78xx0_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_SYSFS_DEPRECATED_V2=y
@@ -40,9 +39,7 @@ CONFIG_NET_PKTGEN=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
@@ -66,7 +63,6 @@ CONFIG_NET_ETHERNET=y
CONFIG_MII=y
CONFIG_NET_PCI=y
CONFIG_MV643XX_ETH=y
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_KEYBOARD is not set
@@ -106,7 +102,6 @@ CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_FS_XATTR is not set
CONFIG_EXT4_FS=m
-CONFIG_INOTIFY=y
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_UDF_FS=m
@@ -130,10 +125,7 @@ CONFIG_DEBUG_KERNEL=y
CONFIG_SCHEDSTATS=y
# CONFIG_DEBUG_BUGVERBOSE is not set
CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_ECB=m
diff --git a/arch/arm/configs/mvebu_v7_defconfig b/arch/arm/configs/mvebu_v7_defconfig
index f1a0e2503cbe..69553704f2dc 100644
--- a/arch/arm/configs/mvebu_v7_defconfig
+++ b/arch/arm/configs/mvebu_v7_defconfig
@@ -135,6 +135,8 @@ CONFIG_DMADEVICES=y
CONFIG_MV_XOR=y
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_MEMORY=y
+CONFIG_PWM=y
+CONFIG_SENSORS_PWM_FAN=y
CONFIG_EXT4_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
diff --git a/arch/arm/configs/mxs_defconfig b/arch/arm/configs/mxs_defconfig
index 6e0f751be229..e5822ab01b7d 100644
--- a/arch/arm/configs/mxs_defconfig
+++ b/arch/arm/configs/mxs_defconfig
@@ -8,6 +8,7 @@ CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
+CONFIG_CGROUPS=y
# CONFIG_UTS_NS is not set
# CONFIG_IPC_NS is not set
# CONFIG_PID_NS is not set
@@ -38,7 +39,6 @@ CONFIG_SYN_COOKIES=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_CAN=m
@@ -75,6 +75,7 @@ CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
CONFIG_INPUT_TOUCHSCREEN=y
+CONFIG_TOUCHSCREEN_MXS_LRADC=y
CONFIG_TOUCHSCREEN_TSC2007=m
# CONFIG_SERIO is not set
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
@@ -95,6 +96,7 @@ CONFIG_GPIO_SYSFS=y
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
CONFIG_STMP3XXX_RTC_WATCHDOG=y
+CONFIG_MFD_MXS_LRADC=y
CONFIG_REGULATOR=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_FB=y
@@ -136,10 +138,9 @@ CONFIG_RTC_DRV_DS1307=m
CONFIG_RTC_DRV_STMP=y
CONFIG_DMADEVICES=y
CONFIG_MXS_DMA=y
-CONFIG_STAGING=y
-CONFIG_MXS_LRADC=y
CONFIG_IIO=y
CONFIG_IIO_SYSFS_TRIGGER=y
+CONFIG_MXS_LRADC_ADC=y
CONFIG_PWM=y
CONFIG_PWM_MXS=y
CONFIG_NVMEM=y
diff --git a/arch/arm/configs/neponset_defconfig b/arch/arm/configs/neponset_defconfig
index 460dca4a4f98..018a1092d0e7 100644
--- a/arch/arm/configs/neponset_defconfig
+++ b/arch/arm/configs/neponset_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
@@ -25,8 +24,6 @@ CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IPV6 is not set
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_BLOCK=y
@@ -84,5 +81,4 @@ CONFIG_NLS_ISO8859_1=m
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
diff --git a/arch/arm/configs/netwinder_defconfig b/arch/arm/configs/netwinder_defconfig
index f1395bbd436c..2e3b20ef0db1 100644
--- a/arch/arm/configs/netwinder_defconfig
+++ b/arch/arm/configs/netwinder_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_ARCH_FOOTBRIDGE=y
@@ -21,7 +20,6 @@ CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
-CONFIG_IP_NF_QUEUE=y
CONFIG_IP_NF_IPTABLES=y
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
@@ -65,7 +63,6 @@ CONFIG_SOUND_DMAP=y
CONFIG_SOUND_YM3812=y
CONFIG_SOUND_WAVEARTIST=y
CONFIG_EXT2_FS=y
-CONFIG_AUTOFS_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_TMPFS=y
diff --git a/arch/arm/configs/netx_defconfig b/arch/arm/configs/netx_defconfig
index 9c0ad7993986..cc5c5f9ef720 100644
--- a/arch/arm/configs/netx_defconfig
+++ b/arch/arm/configs/netx_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -34,12 +33,9 @@ CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
CONFIG_NETFILTER=y
-CONFIG_IP_NF_QUEUE=m
CONFIG_NET_PKTGEN=m
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
@@ -61,7 +57,6 @@ CONFIG_FB_ARMCLCD=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
CONFIG_RTC_CLASS=y
-CONFIG_INOTIFY=y
CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y
CONFIG_NFS_FS=y
@@ -70,7 +65,6 @@ CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
diff --git a/arch/arm/configs/nhk8815_defconfig b/arch/arm/configs/nhk8815_defconfig
index 7d2ad30d9e70..0ac44acd5bc4 100644
--- a/arch/arm/configs/nhk8815_defconfig
+++ b/arch/arm/configs/nhk8815_defconfig
@@ -32,7 +32,6 @@ CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_NET_IPIP=y
CONFIG_IP_MROUTE=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_BT=m
CONFIG_BT_RFCOMM=m
diff --git a/arch/arm/configs/nuc910_defconfig b/arch/arm/configs/nuc910_defconfig
index 10180cfde162..a72653645f9d 100644
--- a/arch/arm/configs/nuc910_defconfig
+++ b/arch/arm/configs/nuc910_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -16,16 +15,12 @@ CONFIG_KEXEC=y
CONFIG_FPE_NWFPE=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_PHYSMAP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=16384
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=y
# CONFIG_SCSI_PROC_FS is not set
CONFIG_BLK_DEV_SD=y
@@ -42,7 +37,6 @@ CONFIG_SERIAL_8250_NR_UARTS=1
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=y
CONFIG_USB_MON=y
CONFIG_USB_STORAGE=y
@@ -56,5 +50,4 @@ CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRC32 is not set
diff --git a/arch/arm/configs/nuc950_defconfig b/arch/arm/configs/nuc950_defconfig
index 27aa8731330b..614a0a28d0b4 100644
--- a/arch/arm/configs/nuc950_defconfig
+++ b/arch/arm/configs/nuc950_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -22,16 +21,12 @@ CONFIG_BINFMT_AOUT=y
CONFIG_BINFMT_MISC=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_PHYSMAP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=16384
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=y
# CONFIG_SCSI_PROC_FS is not set
CONFIG_BLK_DEV_SD=y
@@ -59,7 +54,6 @@ CONFIG_FONT_8x16=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=y
CONFIG_USB_MON=y
CONFIG_USB_STORAGE=y
@@ -73,4 +67,3 @@ CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
diff --git a/arch/arm/configs/nuc960_defconfig b/arch/arm/configs/nuc960_defconfig
index 56fd7ad0ff13..b84bbd216153 100644
--- a/arch/arm/configs/nuc960_defconfig
+++ b/arch/arm/configs/nuc960_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -22,16 +21,12 @@ CONFIG_BINFMT_AOUT=y
CONFIG_BINFMT_MISC=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_PHYSMAP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=16384
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=y
# CONFIG_SCSI_PROC_FS is not set
CONFIG_BLK_DEV_SD=y
@@ -48,7 +43,6 @@ CONFIG_SERIAL_8250_NR_UARTS=1
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=y
CONFIG_USB_MON=y
CONFIG_USB_STORAGE=y
@@ -62,5 +56,4 @@ CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRC32 is not set
diff --git a/arch/arm/configs/omap1_defconfig b/arch/arm/configs/omap1_defconfig
index 6ffc9844542d..72f4bc83f467 100644
--- a/arch/arm/configs/omap1_defconfig
+++ b/arch/arm/configs/omap1_defconfig
@@ -72,7 +72,6 @@ CONFIG_IP_PNP_BOOTP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
CONFIG_IPV6=y
CONFIG_NETFILTER=y
@@ -252,7 +251,6 @@ CONFIG_SECURITY=y
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_DEFLATE=y
-CONFIG_CRYPTO_ZLIB=y
CONFIG_CRYPTO_LZO=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_LIBCRC32C=y
diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index a120ae816260..7b97200c1d64 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -170,6 +170,7 @@ CONFIG_TI_CPTS=y
# CONFIG_NET_VENDOR_WIZNET is not set
CONFIG_AT803X_PHY=y
CONFIG_DP83848_PHY=y
+CONFIG_DP83867_PHY=y
CONFIG_MICREL_PHY=y
CONFIG_SMSC_PHY=y
CONFIG_PPP=m
@@ -250,6 +251,7 @@ CONFIG_DEBUG_GPIO=y
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_PCA953X=m
CONFIG_GPIO_PCF857X=y
+CONFIG_GPIO_LP87565=y
CONFIG_GPIO_PALMAS=y
CONFIG_GPIO_TWL4030=y
CONFIG_W1=m
@@ -284,6 +286,7 @@ CONFIG_MFD_TI_AM335X_TSCADC=m
CONFIG_MFD_PALMAS=y
CONFIG_MFD_TPS65217=y
CONFIG_MFD_TI_LP873X=y
+CONFIG_MFD_TI_LP87565=y
CONFIG_MFD_TPS65218=y
CONFIG_MFD_TPS65910=y
CONFIG_TWL6040_CORE=y
@@ -292,6 +295,7 @@ CONFIG_REGULATOR_GPIO=y
CONFIG_REGULATOR_LM363X=m
CONFIG_REGULATOR_LP872X=y
CONFIG_REGULATOR_LP873X=y
+CONFIG_REGULATOR_LP87565=y
CONFIG_REGULATOR_PALMAS=y
CONFIG_REGULATOR_PBIAS=y
CONFIG_REGULATOR_TI_ABB=y
@@ -304,7 +308,7 @@ CONFIG_REGULATOR_TPS65910=y
CONFIG_REGULATOR_TWL4030=y
CONFIG_MEDIA_SUPPORT=m
CONFIG_MEDIA_CAMERA_SUPPORT=y
-CONFIG_MEDIA_RC_SUPPORT=y
+CONFIG_RC_CORE=m
CONFIG_MEDIA_CONTROLLER=y
CONFIG_VIDEO_V4L2_SUBDEV_API=y
CONFIG_LIRC=m
diff --git a/arch/arm/configs/orion5x_defconfig b/arch/arm/configs/orion5x_defconfig
index 27a70a7a50f6..e39ee282e6ca 100644
--- a/arch/arm/configs/orion5x_defconfig
+++ b/arch/arm/configs/orion5x_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
@@ -64,7 +63,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
diff --git a/arch/arm/configs/palmz72_defconfig b/arch/arm/configs/palmz72_defconfig
index 83c135e19aba..e0a614272561 100644
--- a/arch/arm/configs/palmz72_defconfig
+++ b/arch/arm/configs/palmz72_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
@@ -30,11 +29,9 @@ CONFIG_IP_PNP_BOOTP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_BLK_DEV_LOOP=y
-# CONFIG_MISC_DEVICES is not set
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_KEYBOARD_ATKBD is not set
@@ -56,12 +53,10 @@ CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_PWM=y
-CONFIG_DISPLAY_SUPPORT=y
# CONFIG_VGA_CONSOLE is not set
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FONTS=y
CONFIG_FONT_8x8=y
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_MMC=y
CONFIG_MMC_DEBUG=y
@@ -80,6 +75,5 @@ CONFIG_TMPFS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_866=y
CONFIG_NLS_UTF8=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_DEBUG_USER=y
CONFIG_CRC_T10DIF=y
diff --git a/arch/arm/configs/pcm027_defconfig b/arch/arm/configs/pcm027_defconfig
index b5624e325817..9c88a193490c 100644
--- a/arch/arm/configs/pcm027_defconfig
+++ b/arch/arm/configs/pcm027_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -34,28 +33,22 @@ CONFIG_IP_PNP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_PHYSMAP=y
# CONFIG_BLK_DEV is not set
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SMC91X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -74,7 +67,6 @@ CONFIG_SND=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
CONFIG_SND_PXA2XX_AC97=y
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_STORAGE=y
diff --git a/arch/arm/configs/pleb_defconfig b/arch/arm/configs/pleb_defconfig
index cb08cc561da5..f0541b060cfa 100644
--- a/arch/arm/configs/pleb_defconfig
+++ b/arch/arm/configs/pleb_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
@@ -24,11 +23,9 @@ CONFIG_INET=y
CONFIG_SYN_COOKIES=y
# CONFIG_IPV6 is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
diff --git a/arch/arm/configs/pxa168_defconfig b/arch/arm/configs/pxa168_defconfig
index 74d7e0104f8d..e7c7b91b6de2 100644
--- a/arch/arm/configs/pxa168_defconfig
+++ b/arch/arm/configs/pxa168_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_SYSFS_DEPRECATED_V2=y
@@ -24,18 +23,14 @@ CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_PNP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_BLK_DEV is not set
-# CONFIG_MISC_DEVICES is not set
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SMC91X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -46,9 +41,7 @@ CONFIG_SERIAL_PXA_CONSOLE=y
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
-CONFIG_INOTIFY=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_CRAMFS=y
@@ -62,9 +55,7 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_PREEMPT is not set
CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRC_CCITT=y
diff --git a/arch/arm/configs/pxa255-idp_defconfig b/arch/arm/configs/pxa255-idp_defconfig
index 088627ad875f..4a383afa5e87 100644
--- a/arch/arm/configs/pxa255-idp_defconfig
+++ b/arch/arm/configs/pxa255-idp_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_MODULES=y
@@ -18,8 +17,6 @@ CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
# CONFIG_IPV6 is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -54,5 +51,4 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
diff --git a/arch/arm/configs/pxa3xx_defconfig b/arch/arm/configs/pxa3xx_defconfig
index 5f337d7ceb5b..bfea6874b0a1 100644
--- a/arch/arm/configs/pxa3xx_defconfig
+++ b/arch/arm/configs/pxa3xx_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=18
CONFIG_SYSFS_DEPRECATED_V2=y
@@ -25,15 +24,12 @@ CONFIG_IP_PNP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_PXA3xx=y
@@ -43,12 +39,9 @@ CONFIG_MTD_ONENAND_VERIFY_WRITE=y
CONFIG_MTD_ONENAND_GENERIC=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SMC91X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
# CONFIG_KEYBOARD_ATKBD is not set
CONFIG_KEYBOARD_GPIO=y
@@ -92,7 +85,6 @@ CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_FONTS=y
CONFIG_FONT_6x11=y
CONFIG_LOGO=y
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_MMC=y
CONFIG_MMC_PXA=y
@@ -125,7 +117,6 @@ CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_SPINLOCK_SLEEP=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_FTRACE is not set
CONFIG_DEBUG_USER=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/arm/configs/pxa910_defconfig b/arch/arm/configs/pxa910_defconfig
index 3bb7771d3c19..3aff71e6dae5 100644
--- a/arch/arm/configs/pxa910_defconfig
+++ b/arch/arm/configs/pxa910_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_SYSFS_DEPRECATED_V2=y
@@ -24,18 +23,14 @@ CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_PNP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_BLK_DEV is not set
-# CONFIG_MISC_DEVICES is not set
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SMC91X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -54,9 +49,7 @@ CONFIG_LOGO=y
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
-CONFIG_INOTIFY=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_CRAMFS=y
@@ -70,9 +63,7 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_PREEMPT is not set
CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
CONFIG_DEBUG_MMP_UART2=y
CONFIG_EARLY_PRINTK=y
diff --git a/arch/arm/configs/pxa_defconfig b/arch/arm/configs/pxa_defconfig
index 1318f61589dc..d5e1370ec303 100644
--- a/arch/arm/configs/pxa_defconfig
+++ b/arch/arm/configs/pxa_defconfig
@@ -156,7 +156,6 @@ CONFIG_BT_HCIVHCI=m
CONFIG_BT_MRVL=m
CONFIG_BT_MRVL_SDIO=m
CONFIG_CFG80211=m
-CONFIG_CFG80211_REG_DEBUG=y
CONFIG_MAC80211=m
CONFIG_RFKILL=y
CONFIG_RFKILL_INPUT=y
@@ -472,7 +471,7 @@ CONFIG_LCD_PLATFORM=m
CONFIG_LCD_TOSA=m
CONFIG_BACKLIGHT_PWM=m
CONFIG_BACKLIGHT_TOSA=m
-CONFIG_FRAMEBUFFER_CONSOLE=m
+CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
CONFIG_LOGO=y
CONFIG_SOUND=m
@@ -592,7 +591,6 @@ CONFIG_USB_EMI26=m
CONFIG_USB_RIO500=m
CONFIG_USB_LEGOTOWER=m
CONFIG_USB_LCD=m
-CONFIG_USB_LED=m
CONFIG_USB_CYTHERM=m
CONFIG_USB_IDMOUSE=m
CONFIG_USB_GPIO_VBUS=y
diff --git a/arch/arm/configs/qcom_defconfig b/arch/arm/configs/qcom_defconfig
index 07666a7a9de5..879159e4ab58 100644
--- a/arch/arm/configs/qcom_defconfig
+++ b/arch/arm/configs/qcom_defconfig
@@ -52,7 +52,6 @@ CONFIG_IP_PNP_DHCP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_CFG80211=y
CONFIG_RFKILL=y
@@ -113,6 +112,7 @@ CONFIG_SPI_QUP=y
CONFIG_SPMI=y
CONFIG_PINCTRL_APQ8064=y
CONFIG_PINCTRL_APQ8084=y
+CONFIG_PINCTRL_IPQ4019=y
CONFIG_PINCTRL_IPQ8064=y
CONFIG_PINCTRL_MSM8660=y
CONFIG_PINCTRL_MSM8960=y
@@ -173,6 +173,7 @@ CONFIG_LEDS_GPIO=y
CONFIG_LEDS_PM8058=y
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_RPMSG_QCOM_SMD=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_PM8XXX=y
CONFIG_DMADEVICES=y
@@ -182,6 +183,7 @@ CONFIG_COMMON_CLK_QCOM=y
CONFIG_QCOM_CLK_RPM=y
CONFIG_QCOM_CLK_SMD_RPM=y
CONFIG_APQ_MMCC_8084=y
+CONFIG_IPQ_GCC_4019=y
CONFIG_IPQ_LCC_806X=y
CONFIG_MSM_GCC_8660=y
CONFIG_MSM_LCC_8960=y
@@ -197,7 +199,6 @@ CONFIG_QCOM_WCNSS_PIL=y
CONFIG_QCOM_GSBI=y
CONFIG_QCOM_PM=y
CONFIG_QCOM_SMEM=y
-CONFIG_QCOM_SMD=y
CONFIG_QCOM_SMD_RPM=y
CONFIG_QCOM_SMP2P=y
CONFIG_QCOM_SMSM=y
diff --git a/arch/arm/configs/raumfeld_defconfig b/arch/arm/configs/raumfeld_defconfig
index 3d833aea545a..e3dc80ead465 100644
--- a/arch/arm/configs/raumfeld_defconfig
+++ b/arch/arm/configs/raumfeld_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
# CONFIG_SWAP is not set
CONFIG_MODULES=y
@@ -24,16 +23,11 @@ CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_SYN_COOKIES=y
-# CONFIG_INET_LRO is not set
CONFIG_IPV6=y
CONFIG_CFG80211=y
-CONFIG_CFG80211_REG_DEBUG=y
CONFIG_MAC80211=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_NFTL=y
CONFIG_NFTL_RW=y
@@ -50,8 +44,6 @@ CONFIG_CHR_DEV_SG=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SMSC911X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_LIBERTAS=y
CONFIG_LIBERTAS_SDIO=m
CONFIG_USB_USBNET=y
@@ -146,7 +138,6 @@ CONFIG_UIO=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XIP=y
CONFIG_EXT3_FS=y
-CONFIG_INOTIFY=y
CONFIG_FSCACHE=y
CONFIG_FSCACHE_STATS=y
CONFIG_CACHEFILES=y
@@ -199,9 +190,7 @@ CONFIG_NLS_UTF8=y
CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/arm/configs/realview_defconfig b/arch/arm/configs/realview_defconfig
index 9e77dc7b828f..2a6d69d896bd 100644
--- a/arch/arm/configs/realview_defconfig
+++ b/arch/arm/configs/realview_defconfig
@@ -35,7 +35,6 @@ CONFIG_INET=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
diff --git a/arch/arm/configs/rpc_defconfig b/arch/arm/configs/rpc_defconfig
index 89631795a915..3b82b64950d9 100644
--- a/arch/arm/configs/rpc_defconfig
+++ b/arch/arm/configs/rpc_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
@@ -51,8 +50,6 @@ CONFIG_NET_ETHERNET=y
CONFIG_ARM_ETHER1=y
CONFIG_ARM_ETHER3=y
CONFIG_ARM_ETHERH=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_PPP=m
CONFIG_PPPOE=m
CONFIG_INPUT_EVDEV=y
@@ -81,13 +78,11 @@ CONFIG_SOUND=m
CONFIG_SOUND_PRIME=m
CONFIG_SOUND_OSS=m
CONFIG_SOUND_VIDC=m
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_PCF8583=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
-CONFIG_INOTIFY=y
CONFIG_AUTOFS4_FS=m
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
@@ -129,6 +124,5 @@ CONFIG_NLS_KOI8_R=m
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
CONFIG_DEBUG_LL_UART_8250=y
diff --git a/arch/arm/configs/s3c2410_defconfig b/arch/arm/configs/s3c2410_defconfig
index 1e6c48dd7b11..2afb359f3168 100644
--- a/arch/arm/configs/s3c2410_defconfig
+++ b/arch/arm/configs/s3c2410_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=m
CONFIG_IKCONFIG_PROC=y
@@ -12,9 +11,6 @@ CONFIG_PARTITION_ADVANCED=y
CONFIG_BSD_DISKLABEL=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_ARCH_S3C24XX=y
-CONFIG_S3C_BOOT_ERROR_RESET=y
-CONFIG_S3C_ADC=y
-CONFIG_S3C24XX_PWM=y
CONFIG_CPU_S3C2412=y
CONFIG_CPU_S3C2416=y
CONFIG_CPU_S3C2440=y
@@ -43,15 +39,13 @@ CONFIG_MACH_RX3715=y
CONFIG_ARCH_S3C2440=y
CONFIG_MACH_NEO1973_GTA02=y
CONFIG_MACH_RX1950=y
-CONFIG_SMDK2440_CPU2442=y
CONFIG_MACH_SMDK2443=y
-# CONFIG_ARM_THUMB is not set
+CONFIG_S3C_ADC=y
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_CMDLINE="root=/dev/hda1 ro init=/bin/bash console=ttySAC0"
CONFIG_FPE_NWFPE=y
CONFIG_FPE_NWFPE_XP=y
-CONFIG_BINFMT_AOUT=y
CONFIG_APM_EMULATION=m
CONFIG_NET=y
CONFIG_PACKET=y
@@ -67,7 +61,6 @@ CONFIG_NET_IPIP=m
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
-# CONFIG_INET_LRO is not set
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
@@ -86,9 +79,6 @@ CONFIG_IPV6_TUNNEL=m
CONFIG_NETFILTER=y
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_DCCP=y
-CONFIG_NF_CT_PROTO_SCTP=y
-CONFIG_NF_CT_PROTO_UDPLITE=y
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
@@ -102,6 +92,7 @@ CONFIG_NF_CT_NETLINK=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_LED=m
+CONFIG_NETFILTER_XT_TARGET_LOG=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
@@ -139,16 +130,13 @@ CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
CONFIG_IP_VS=m
CONFIG_NF_CONNTRACK_IPV4=m
-CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
-CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
-CONFIG_NF_NAT=m
+CONFIG_IP_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
CONFIG_IP_NF_TARGET_REDIRECT=m
@@ -161,7 +149,6 @@ CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
CONFIG_NF_CONNTRACK_IPV6=m
-CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
@@ -172,7 +159,6 @@ CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_HL=m
-CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
@@ -185,7 +171,6 @@ CONFIG_BT_BNEP_MC_FILTER=y
CONFIG_BT_BNEP_PROTO_FILTER=y
CONFIG_BT_HIDP=m
CONFIG_BT_HCIUART=m
-CONFIG_BT_HCIUART_H4=y
CONFIG_BT_HCIUART_BCSP=y
CONFIG_BT_HCIUART_LL=y
CONFIG_BT_HCIBCM203X=m
@@ -201,7 +186,6 @@ CONFIG_MTD=y
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
@@ -216,9 +200,9 @@ CONFIG_PARPORT_AX88796=m
CONFIG_PARPORT_1284=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_NBD=m
-CONFIG_BLK_DEV_UB=m
CONFIG_BLK_DEV_RAM=y
CONFIG_ATA_OVER_ETH=m
+CONFIG_EEPROM_AT24=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
CONFIG_BLK_DEV_SR=y
@@ -279,13 +263,13 @@ CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_SAMSUNG=y
CONFIG_SERIAL_SAMSUNG_CONSOLE=y
+CONFIG_SERIAL_DEV_BUS=m
CONFIG_PRINTER=y
CONFIG_PPDEV=y
CONFIG_HW_RANDOM=y
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_S3C2410=y
CONFIG_I2C_SIMTEC=y
-CONFIG_EEPROM_AT24=y
CONFIG_SPI=y
CONFIG_SPI_GPIO=m
CONFIG_SPI_S3C24XX=m
@@ -297,6 +281,7 @@ CONFIG_SENSORS_LM85=m
CONFIG_WATCHDOG=y
CONFIG_S3C2410_WATCHDOG=y
CONFIG_MFD_SM501=y
+CONFIG_TPS65010=y
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_MODE_HELPERS=y
@@ -336,7 +321,6 @@ CONFIG_USB_STORAGE_ALAUDA=m
CONFIG_USB_STORAGE_ONETOUCH=m
CONFIG_USB_STORAGE_KARMA=m
CONFIG_USB_STORAGE_CYPRESS_ATACB=m
-CONFIG_USB_LIBUSUAL=y
CONFIG_USB_MDC800=m
CONFIG_USB_MICROTEK=m
CONFIG_USB_USS720=m
@@ -353,7 +337,6 @@ CONFIG_USB_SEVSEG=m
CONFIG_USB_RIO500=m
CONFIG_USB_LEGOTOWER=m
CONFIG_USB_LCD=m
-CONFIG_USB_LED=m
CONFIG_USB_CYPRESS_CY7C63=m
CONFIG_USB_CYTHERM=m
CONFIG_USB_IDMOUSE=m
@@ -382,14 +365,14 @@ CONFIG_LEDS_TRIGGER_GPIO=m
CONFIG_LEDS_TRIGGER_DEFAULT_ON=m
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_S3C=y
+CONFIG_DMADEVICES=y
+CONFIG_S3C24XX_DMAC=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_POSIX_ACL=y
-CONFIG_EXT4_FS=m
-CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=y
@@ -407,7 +390,6 @@ CONFIG_CRAMFS=y
CONFIG_SQUASHFS=m
CONFIG_ROMFS_FS=y
CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_ROOT_NFS=y
CONFIG_NFSD=m
@@ -452,11 +434,9 @@ CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
+CONFIG_DEBUG_INFO=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MUTEXES=y
-CONFIG_DEBUG_INFO=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_DEBUG_USER=y
CONFIG_DEBUG_LL=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/arm/configs/s3c6400_defconfig b/arch/arm/configs/s3c6400_defconfig
index e0f66936ae02..507d7ad7523a 100644
--- a/arch/arm/configs/s3c6400_defconfig
+++ b/arch/arm/configs/s3c6400_defconfig
@@ -1,4 +1,4 @@
-CONFIG_EXPERIMENTAL=y
+CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_KALLSYMS_ALL=y
@@ -8,7 +8,6 @@ CONFIG_MODULE_UNLOAD=y
CONFIG_ARCH_MULTI_V6=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_S3C64XX=y
-CONFIG_S3C_BOOT_ERROR_RESET=y
CONFIG_MACH_SMDK6400=y
CONFIG_MACH_ANW6410=y
CONFIG_MACH_MINI6410=y
@@ -19,11 +18,9 @@ CONFIG_MACH_HMT=y
CONFIG_MACH_SMARTQ5=y
CONFIG_MACH_SMARTQ7=y
CONFIG_MACH_WLF_CRAGG_6410=y
-CONFIG_CPU_32v6K=y
CONFIG_AEABI=y
CONFIG_CMDLINE="console=ttySAC0,115200 root=/dev/ram init=/linuxrc initrd=0x51000000,6M ramdisk_size=6144"
CONFIG_VFP=y
-CONFIG_PM=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
CONFIG_MTD_NAND=y
@@ -48,14 +45,11 @@ CONFIG_LCD_CLASS_DEVICE=y
CONFIG_LCD_LTV350QV=y
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_PWM=y
-# CONFIG_VGA_CONSOLE is not set
CONFIG_SOUND=y
CONFIG_SND=m
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_SOC=m
-CONFIG_SND_S3C24XX_SOC=m
-CONFIG_SND_SOC_SMDK_WM9713=m
CONFIG_USB=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
CONFIG_USB_OHCI_HCD=y
@@ -68,30 +62,26 @@ CONFIG_USB_SERIAL_FTDI_SIO=m
CONFIG_USB_SERIAL_PL2303=m
CONFIG_MMC=y
CONFIG_MMC_DEBUG=y
-CONFIG_MMC_UNSAFE_RESUME=y
CONFIG_SDIO_UART=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_S3C=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_S3C=y
+CONFIG_PWM=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
-CONFIG_INOTIFY=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_CRAMFS=y
CONFIG_ROMFS_FS=y
+CONFIG_DEBUG_INFO=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
-CONFIG_DEBUG_SPINLOCK_SLEEP=y
-CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
+CONFIG_DEBUG_ATOMIC_SLEEP=y
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
diff --git a/arch/arm/configs/s5pv210_defconfig b/arch/arm/configs/s5pv210_defconfig
index c51f0f02012b..09b5a7386414 100644
--- a/arch/arm/configs/s5pv210_defconfig
+++ b/arch/arm/configs/s5pv210_defconfig
@@ -1,16 +1,16 @@
-CONFIG_EXPERIMENTAL=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_KALLSYMS_ALL=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_BSD_DISKLABEL=y
+CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_ARCH_S5PV210=y
-CONFIG_S3C_LOWLEVEL_UART_PORT=1
-CONFIG_S3C_DEV_FB=y
-CONFIG_S5PV210_SETUP_FB_24BPP=y
-CONFIG_NO_HZ=y
-CONFIG_HIGH_RES_TIMERS=y
CONFIG_VMSPLIT_2G=y
CONFIG_PREEMPT=y
CONFIG_AEABI=y
@@ -21,7 +21,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=8192
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_SG=y
@@ -34,36 +33,27 @@ CONFIG_SERIAL_SAMSUNG=y
CONFIG_SERIAL_SAMSUNG_CONSOLE=y
CONFIG_HW_RANDOM=y
# CONFIG_HWMON is not set
-# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_EXT2_FS=y
-CONFIG_INOTIFY=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_CRAMFS=y
CONFIG_ROMFS_FS=y
-CONFIG_PARTITION_ADVANCED=y
-CONFIG_BSD_DISKLABEL=y
-CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=y
+CONFIG_DEBUG_INFO=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_PREEMPT is not set
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
-CONFIG_DEBUG_SPINLOCK_SLEEP=y
-CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
+CONFIG_DEBUG_ATOMIC_SLEEP=y
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
+CONFIG_DEBUG_S3C_UART1=y
CONFIG_EARLY_PRINTK=y
-CONFIG_DEBUG_S3C_UART=1
CONFIG_CRC_CCITT=y
diff --git a/arch/arm/configs/sama5_defconfig b/arch/arm/configs/sama5_defconfig
index 777c9e986425..6529cb43e0fd 100644
--- a/arch/arm/configs/sama5_defconfig
+++ b/arch/arm/configs/sama5_defconfig
@@ -3,6 +3,8 @@
CONFIG_SYSVIPC=y
CONFIG_FHANDLE=y
CONFIG_IRQ_DOMAIN_DEBUG=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_HIGH_RES_TIMERS=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_CGROUPS=y
CONFIG_BLK_DEV_INITRD=y
@@ -44,7 +46,6 @@ CONFIG_IP_PNP_RARP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
@@ -52,6 +53,7 @@ CONFIG_IP_PNP_RARP=y
CONFIG_IPV6_SIT_6RD=y
CONFIG_CAN=y
CONFIG_CAN_AT91=y
+CONFIG_CAN_M_CAN=y
CONFIG_CFG80211=y
CONFIG_MAC80211=y
CONFIG_MAC80211_LEDS=y
diff --git a/arch/arm/configs/shannon_defconfig b/arch/arm/configs/shannon_defconfig
index e52395629810..de33abdeb6fa 100644
--- a/arch/arm/configs/shannon_defconfig
+++ b/arch/arm/configs/shannon_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
@@ -17,8 +16,6 @@ CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IPV6 is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index 3c66a422fb4d..7b4fc0143148 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -27,6 +27,7 @@ CONFIG_ARCH_SH73A0=y
CONFIG_PL310_ERRATA_588369=y
CONFIG_ARM_ERRATA_754322=y
CONFIG_PCI=y
+CONFIG_PCI_MSI=y
CONFIG_PCI_RCAR_GEN2=y
CONFIG_PCIE_RCAR=y
CONFIG_SMP=y
@@ -83,14 +84,14 @@ CONFIG_NETDEVICES=y
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
CONFIG_SH_ETH=y
+CONFIG_RAVB=y
# CONFIG_NET_VENDOR_SEEQ is not set
CONFIG_SMSC911X=y
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
-CONFIG_SMSC_PHY=y
CONFIG_MICREL_PHY=y
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_SMSC_PHY=y
CONFIG_INPUT_EVDEV=y
CONFIG_KEYBOARD_GPIO=y
# CONFIG_INPUT_MOUSE is not set
@@ -105,6 +106,7 @@ CONFIG_SERIAL_8250_EM=y
CONFIG_SERIAL_SH_SCI=y
CONFIG_SERIAL_SH_SCI_NR_UARTS=20
CONFIG_SERIAL_SH_SCI_CONSOLE=y
+CONFIG_SERIAL_SH_SCI_DMA=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MUX=y
CONFIG_I2C_DEMUX_PINCTRL=y
@@ -121,9 +123,9 @@ CONFIG_SPI_SH_HSPI=y
CONFIG_GPIO_EM=y
CONFIG_GPIO_RCAR=y
CONFIG_GPIO_PCF857X=y
-CONFIG_POWER_SUPPLY=y
CONFIG_POWER_RESET=y
CONFIG_POWER_RESET_RMOBILE=y
+CONFIG_POWER_SUPPLY=y
# CONFIG_HWMON is not set
CONFIG_THERMAL=y
CONFIG_CPU_THERMAL=y
@@ -153,10 +155,11 @@ CONFIG_VIDEO_ADV7180=y
CONFIG_VIDEO_ADV7604=y
CONFIG_VIDEO_ML86V7667=y
CONFIG_DRM=y
-CONFIG_DRM_I2C_ADV7511=y
CONFIG_DRM_RCAR_DU=y
-CONFIG_DRM_RCAR_HDMI=y
CONFIG_DRM_RCAR_LVDS=y
+CONFIG_DRM_DUMB_VGA_DAC=y
+CONFIG_DRM_I2C_ADV7511=y
+CONFIG_DRM_I2C_ADV7511_AUDIO=y
CONFIG_FB_SH_MOBILE_LCDC=y
CONFIG_FB_SH_MOBILE_MERAM=y
# CONFIG_LCD_CLASS_DEVICE is not set
@@ -169,12 +172,12 @@ CONFIG_SND=y
CONFIG_SND_SOC=y
CONFIG_SND_SOC_SH4_FSI=y
CONFIG_SND_SOC_RCAR=y
-CONFIG_SND_SOC_RSRC_CARD=y
CONFIG_SND_SOC_AK4642=y
CONFIG_SND_SOC_WM8978=y
+CONFIG_SND_SIMPLE_SCU_CARD=y
CONFIG_USB=y
CONFIG_USB_XHCI_HCD=y
-CONFIG_USB_XHCI_RCAR=y
+CONFIG_USB_XHCI_PLATFORM=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_R8A66597_HCD=y
@@ -190,6 +193,7 @@ CONFIG_LEDS_CLASS=y
CONFIG_LEDS_GPIO=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_RS5C372=y
+CONFIG_RTC_DRV_BQ32K=y
CONFIG_RTC_DRV_S35390A=y
CONFIG_RTC_DRV_RX8581=y
CONFIG_RTC_DRV_DA9063=y
diff --git a/arch/arm/configs/simpad_defconfig b/arch/arm/configs/simpad_defconfig
index d3358155bf8a..28d99d8895f9 100644
--- a/arch/arm/configs/simpad_defconfig
+++ b/arch/arm/configs/simpad_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_LOCALVERSION="oe1"
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
@@ -33,18 +32,13 @@ CONFIG_IRCOMM=m
CONFIG_IRTTY_SIR=m
CONFIG_SA1100_FIR=m
CONFIG_BT=m
-CONFIG_BT_L2CAP=m
-CONFIG_BT_SCO=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
CONFIG_BT_BNEP_MC_FILTER=y
CONFIG_BT_BNEP_PROTO_FILTER=y
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
@@ -107,5 +101,4 @@ CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_15=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
diff --git a/arch/arm/configs/spear13xx_defconfig b/arch/arm/configs/spear13xx_defconfig
index d271b263f35d..7b36eeb928bb 100644
--- a/arch/arm/configs/spear13xx_defconfig
+++ b/arch/arm/configs/spear13xx_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BLK_DEV_INITRD=y
@@ -32,7 +31,6 @@ CONFIG_NET_IPIP=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
CONFIG_MTD_OF_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_FSMC=y
@@ -73,9 +71,7 @@ CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_PL061=y
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_STORAGE=y
diff --git a/arch/arm/configs/spear3xx_defconfig b/arch/arm/configs/spear3xx_defconfig
index 7ff23a077f5d..2c5e8df33191 100644
--- a/arch/arm/configs/spear3xx_defconfig
+++ b/arch/arm/configs/spear3xx_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BLK_DEV_INITRD=y
@@ -17,7 +16,6 @@ CONFIG_NET=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
CONFIG_MTD_OF_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_FSMC=y
@@ -56,9 +54,7 @@ CONFIG_WATCHDOG=y
CONFIG_ARM_SP805_WATCHDOG=y
CONFIG_FB=y
CONFIG_FB_ARMCLCD=y
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_OHCI_HCD=y
CONFIG_MMC=y
diff --git a/arch/arm/configs/spear6xx_defconfig b/arch/arm/configs/spear6xx_defconfig
index 7822980d7d55..124c244d8df1 100644
--- a/arch/arm/configs/spear6xx_defconfig
+++ b/arch/arm/configs/spear6xx_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BLK_DEV_INITRD=y
@@ -14,7 +13,6 @@ CONFIG_NET=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
CONFIG_MTD_OF_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_FSMC=y
@@ -49,7 +47,6 @@ CONFIG_GPIO_PL061=y
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
CONFIG_ARM_SP805_WATCHDOG=y
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_OHCI_HCD=y
diff --git a/arch/arm/configs/spitz_defconfig b/arch/arm/configs/spitz_defconfig
index d8c529332fb4..9ea82c118661 100644
--- a/arch/arm/configs/spitz_defconfig
+++ b/arch/arm/configs/spitz_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_LOG_BUF_SHIFT=14
@@ -30,26 +29,22 @@ CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_SYN_COOKIES=y
-# CONFIG_INET_LRO is not set
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_TUNNEL=m
CONFIG_NETFILTER=y
-CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
-CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_MATCH_FRAG=m
@@ -66,8 +61,6 @@ CONFIG_IRNET=m
CONFIG_IRCOMM=m
CONFIG_PXA_FICP=m
CONFIG_BT=m
-CONFIG_BT_L2CAP=m
-CONFIG_BT_SCO=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
@@ -87,9 +80,7 @@ CONFIG_BT_HCIBTUART=m
CONFIG_BT_HCIVHCI=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_ROM=y
CONFIG_MTD_COMPLEX_MAPPINGS=y
@@ -203,7 +194,6 @@ CONFIG_USB_EMI26=m
CONFIG_USB_RIO500=m
CONFIG_USB_LEGOTOWER=m
CONFIG_USB_LCD=m
-CONFIG_USB_LED=m
CONFIG_USB_CYTHERM=m
CONFIG_USB_IDMOUSE=m
CONFIG_USB_GADGET=m
@@ -221,7 +211,6 @@ CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_FS_XATTR is not set
-CONFIG_INOTIFY=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
@@ -243,9 +232,7 @@ CONFIG_NLS_UTF8=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_PREEMPT is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_FTRACE is not set
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_TEST=m
diff --git a/arch/arm/configs/stm32_defconfig b/arch/arm/configs/stm32_defconfig
index a0975386a96c..90e5c46913a5 100644
--- a/arch/arm/configs/stm32_defconfig
+++ b/arch/arm/configs/stm32_defconfig
@@ -52,7 +52,10 @@ CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_STM32F4=y
# CONFIG_HWMON is not set
+CONFIG_WATCHDOG=y
CONFIG_REGULATOR=y
+CONFIG_GPIO_STMPE=y
+CONFIG_MFD_STMPE=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
# CONFIG_USB_SUPPORT is not set
CONFIG_NEW_LEDS=y
diff --git a/arch/arm/configs/sunxi_defconfig b/arch/arm/configs/sunxi_defconfig
index 5cd5dd70bc83..5caaf971fb50 100644
--- a/arch/arm/configs/sunxi_defconfig
+++ b/arch/arm/configs/sunxi_defconfig
@@ -1,4 +1,3 @@
-CONFIG_FHANDLE=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_CGROUPS=y
@@ -27,7 +26,6 @@ CONFIG_IP_PNP_BOOTP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_CAN=y
@@ -57,7 +55,6 @@ CONFIG_STMMAC_ETH=y
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_WLAN is not set
-# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_EVDEV=y
CONFIG_KEYBOARD_SUN4I_LRADC=y
# CONFIG_INPUT_MOUSE is not set
@@ -72,7 +69,6 @@ CONFIG_SERIAL_8250_RUNTIME_UARTS=8
CONFIG_SERIAL_8250_DW=y
CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set
-CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MV64XXX=y
CONFIG_I2C_SUN6I_P2WI=y
@@ -81,14 +77,14 @@ CONFIG_SPI_SUN4I=y
CONFIG_SPI_SUN6I=y
CONFIG_GPIO_SYSFS=y
CONFIG_POWER_SUPPLY=y
+CONFIG_CHARGER_AXP20X=y
+CONFIG_BATTERY_AXP20X=y
CONFIG_AXP20X_POWER=y
CONFIG_THERMAL=y
-CONFIG_THERMAL_OF=y
CONFIG_CPU_THERMAL=y
CONFIG_WATCHDOG=y
CONFIG_SUNXI_WATCHDOG=y
CONFIG_MFD_AC100=y
-CONFIG_MFD_AXP20X=y
CONFIG_MFD_AXP20X_I2C=y
CONFIG_MFD_AXP20X_RSB=y
CONFIG_REGULATOR=y
@@ -96,16 +92,13 @@ CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_REGULATOR_AXP20X=y
CONFIG_REGULATOR_GPIO=y
CONFIG_MEDIA_SUPPORT=y
-CONFIG_MEDIA_RC_SUPPORT=y
+CONFIG_RC_CORE=y
CONFIG_RC_DEVICES=y
CONFIG_IR_SUNXI=y
CONFIG_DRM=y
-CONFIG_DRM_DUMB_VGA_DAC=y
CONFIG_DRM_SUN4I=y
-CONFIG_FB=y
+CONFIG_DRM_DUMB_VGA_DAC=y
CONFIG_FB_SIMPLE=y
-CONFIG_FRAMEBUFFER_CONSOLE=y
-CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_SOUND=y
CONFIG_SND=y
CONFIG_SND_SOC=y
@@ -131,12 +124,13 @@ CONFIG_RTC_CLASS=y
# CONFIG_RTC_INTF_SYSFS is not set
# CONFIG_RTC_INTF_PROC is not set
CONFIG_RTC_DRV_AC100=y
-CONFIG_RTC_DRV_SUN6I=y
CONFIG_RTC_DRV_SUNXI=y
CONFIG_DMADEVICES=y
CONFIG_DMA_SUN6I=y
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_EXTCON=y
+CONFIG_IIO=y
+CONFIG_AXP20X_ADC=y
CONFIG_PWM=y
CONFIG_PWM_SUN4I=y
CONFIG_PHY_SUN4I_USB=y
diff --git a/arch/arm/configs/tct_hammer_defconfig b/arch/arm/configs/tct_hammer_defconfig
index 7209a2caefcf..d0a9e5dd9135 100644
--- a/arch/arm/configs/tct_hammer_defconfig
+++ b/arch/arm/configs/tct_hammer_defconfig
@@ -1,13 +1,12 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
+CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EXPERT=y
# CONFIG_KALLSYMS is not set
-# CONFIG_BUGVERBOSE is not set
# CONFIG_ELF_CORE is not set
# CONFIG_SHMEM is not set
CONFIG_SLOB=y
@@ -26,8 +25,6 @@ CONFIG_UNIX=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -36,22 +33,17 @@ CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_PHYSMAP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=10240
-# CONFIG_MISC_DEVICES is not set
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
# CONFIG_VT_CONSOLE is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
-# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_MON=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_GADGET=y
-CONFIG_USB_GADGET_S3C2410=y
+CONFIG_USB_S3C2410=y
CONFIG_USB_ETH=m
CONFIG_EXT2_FS=y
# CONFIG_DNOTIFY is not set
@@ -62,8 +54,5 @@ CONFIG_JFFS2_FS=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_MUST_CHECK is not set
-CONFIG_DEBUG_KERNEL=y
-# CONFIG_DETECT_SOFTLOCKUP is not set
-CONFIG_DEBUG_ERRORS=y
CONFIG_DEBUG_LL=y
CONFIG_CRC_CCITT=y
diff --git a/arch/arm/configs/tegra_defconfig b/arch/arm/configs/tegra_defconfig
index f0efc854b5a2..6678f2929356 100644
--- a/arch/arm/configs/tegra_defconfig
+++ b/arch/arm/configs/tegra_defconfig
@@ -121,7 +121,6 @@ CONFIG_TOUCHSCREEN_WM97XX=y
CONFIG_TOUCHSCREEN_STMPE=y
CONFIG_INPUT_MISC=y
# CONFIG_LEGACY_PTYS is not set
-# CONFIG_DEVKMEM is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_OF_PLATFORM=y
@@ -202,6 +201,8 @@ CONFIG_SND_HDA_CODEC_HDMI=y
# CONFIG_SND_USB is not set
CONFIG_SND_SOC=y
CONFIG_SND_SOC_TEGRA=y
+CONFIG_SND_SOC_TEGRA20_I2S=y
+CONFIG_SND_SOC_TEGRA30_I2S=y
CONFIG_SND_SOC_TEGRA_RT5640=y
CONFIG_SND_SOC_TEGRA_WM8753=y
CONFIG_SND_SOC_TEGRA_WM8903=y
@@ -218,6 +219,9 @@ CONFIG_USB_EHCI_TEGRA=y
CONFIG_USB_ACM=y
CONFIG_USB_WDM=y
CONFIG_USB_STORAGE=y
+CONFIG_USB_CHIPIDEA=y
+CONFIG_USB_CHIPIDEA_UDC=y
+CONFIG_USB_GADGET=y
CONFIG_MMC=y
CONFIG_MMC_BLOCK_MINORS=16
CONFIG_MMC_SDHCI=y
@@ -247,8 +251,6 @@ CONFIG_RTC_DRV_TEGRA=y
CONFIG_DMADEVICES=y
CONFIG_TEGRA20_APB_DMA=y
CONFIG_STAGING=y
-CONFIG_SENSORS_ISL29018=y
-CONFIG_SENSORS_ISL29028=y
CONFIG_MFD_NVEC=y
CONFIG_KEYBOARD_NVEC=y
CONFIG_SERIO_NVEC_PS2=y
@@ -263,6 +265,8 @@ CONFIG_ARCH_TEGRA_124_SOC=y
CONFIG_MEMORY=y
CONFIG_IIO=y
CONFIG_MPU3050_I2C=y
+CONFIG_SENSORS_ISL29018=y
+CONFIG_SENSORS_ISL29028=y
CONFIG_AK8975=y
CONFIG_PWM=y
CONFIG_PWM_TEGRA=y
@@ -288,13 +292,11 @@ CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_INFO=y
-CONFIG_DEBUG_FS=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_SLAB=y
CONFIG_DEBUG_VM=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_SCHEDSTATS=y
-CONFIG_TIMER_STATS=y
# CONFIG_DEBUG_PREEMPT is not set
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_SG=y
diff --git a/arch/arm/configs/trizeps4_defconfig b/arch/arm/configs/trizeps4_defconfig
index 492f7f3eb4ac..2b5a224d2da1 100644
--- a/arch/arm/configs/trizeps4_defconfig
+++ b/arch/arm/configs/trizeps4_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -38,7 +37,6 @@ CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
-CONFIG_IP_NF_QUEUE=m
CONFIG_VLAN_8021Q=m
CONFIG_IRDA=m
CONFIG_IRLAN=m
@@ -49,8 +47,6 @@ CONFIG_IRDA_CACHE_LAST_LSAP=y
CONFIG_IRDA_FAST_RR=y
CONFIG_IRTTY_SIR=m
CONFIG_BT=m
-CONFIG_BT_L2CAP=m
-CONFIG_BT_SCO=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
@@ -60,11 +56,9 @@ CONFIG_BT_HIDP=m
CONFIG_CFG80211=y
CONFIG_CONNECTOR=y
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y
CONFIG_MTD_REDBOOT_PARTS_READONLY=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
@@ -163,7 +157,6 @@ CONFIG_SND_PXA2XX_AC97=y
CONFIG_SND_USB_AUDIO=m
# CONFIG_USB_HID is not set
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_STORAGE=m
CONFIG_USB_SERIAL=m
@@ -183,7 +176,6 @@ CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
-CONFIG_INOTIFY=y
CONFIG_AUTOFS4_FS=y
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
diff --git a/arch/arm/configs/u300_defconfig b/arch/arm/configs/u300_defconfig
index aaa95ab606a8..36d77406e31b 100644
--- a/arch/arm/configs/u300_defconfig
+++ b/arch/arm/configs/u300_defconfig
@@ -49,7 +49,6 @@ CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_USB_SUPPORT is not set
CONFIG_MMC=y
-CONFIG_MMC_UNSAFE_RESUME=y
# CONFIG_MMC_BLOCK_BOUNCE is not set
CONFIG_MMC_ARMMMCI=y
CONFIG_RTC_CLASS=y
diff --git a/arch/arm/configs/vexpress_defconfig b/arch/arm/configs/vexpress_defconfig
index 37fe607a4ede..edae1c58fe80 100644
--- a/arch/arm/configs/vexpress_defconfig
+++ b/arch/arm/configs/vexpress_defconfig
@@ -19,7 +19,6 @@ CONFIG_MODULE_UNLOAD=y
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
CONFIG_ARCH_VEXPRESS=y
-CONFIG_ARCH_VEXPRESS_CA9X4=y
CONFIG_ARCH_VEXPRESS_DCSCB=y
CONFIG_ARCH_VEXPRESS_TC2_PM=y
# CONFIG_SWP_EMULATE is not set
@@ -46,7 +45,6 @@ CONFIG_INET=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
CONFIG_NET_9P=y
diff --git a/arch/arm/configs/viper_defconfig b/arch/arm/configs/viper_defconfig
index 0d717a5eff29..070e5074f1ee 100644
--- a/arch/arm/configs/viper_defconfig
+++ b/arch/arm/configs/viper_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=13
@@ -34,10 +33,8 @@ CONFIG_INET=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_SYN_COOKIES=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_BT=m
-CONFIG_BT_L2CAP=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
@@ -49,7 +46,6 @@ CONFIG_FW_LOADER=m
CONFIG_MTD=y
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=0
-CONFIG_MTD_CHAR=m
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
@@ -72,8 +68,6 @@ CONFIG_PATA_PCMCIA=m
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SMC91X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_USB_PEGASUS=m
CONFIG_USB_USBNET=m
# CONFIG_USB_NET_CDC_SUBSET is not set
@@ -119,7 +113,7 @@ CONFIG_FB_PXA_PARAMETERS=y
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_BACKLIGHT_PWM=m
# CONFIG_VGA_CONSOLE is not set
-CONFIG_FRAMEBUFFER_CONSOLE=m
+CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
CONFIG_SOUND=m
CONFIG_SND=m
@@ -148,7 +142,6 @@ CONFIG_EXT2_FS=m
CONFIG_EXT3_FS=m
# CONFIG_EXT3_FS_XATTR is not set
# CONFIG_DNOTIFY is not set
-CONFIG_INOTIFY=y
CONFIG_VFAT_FS=m
CONFIG_JFFS2_FS=y
CONFIG_NFS_FS=y
@@ -165,9 +158,7 @@ CONFIG_NLS_UTF8=m
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MUTEXES=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
# CONFIG_FTRACE is not set
-CONFIG_DEBUG_ERRORS=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRC_T10DIF=m
diff --git a/arch/arm/configs/xcep_defconfig b/arch/arm/configs/xcep_defconfig
index 721832ffe2d7..2eda24635e65 100644
--- a/arch/arm/configs/xcep_defconfig
+++ b/arch/arm/configs/xcep_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_LOCALVERSION=".xcep-itech"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
@@ -47,14 +46,10 @@ CONFIG_IP_PNP_BOOTP=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
-CONFIG_MTD_CONCAT=y
CONFIG_MTD_COMPLEX_MAPPINGS=y
CONFIG_MTD_PXA2XX=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -71,7 +66,6 @@ CONFIG_HWMON=m
CONFIG_SENSORS_ADM1021=m
CONFIG_SENSORS_MAX6650=m
# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_SA1100=m
@@ -90,8 +84,6 @@ CONFIG_STRIP_ASM_SYMS=y
CONFIG_DEBUG_KERNEL=y
# CONFIG_SCHED_DEBUG is not set
# CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
# CONFIG_FTRACE is not set
# CONFIG_ARM_UNWIND is not set
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/arm/configs/zeus_defconfig b/arch/arm/configs/zeus_defconfig
index cd11da8b5123..09e7050d5653 100644
--- a/arch/arm/configs/zeus_defconfig
+++ b/arch/arm/configs/zeus_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_TINY_RCU=y
CONFIG_LOG_BUF_SHIFT=13
@@ -29,10 +28,8 @@ CONFIG_INET=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_SYN_COOKIES=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_BT=m
-CONFIG_BT_L2CAP=m
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
@@ -46,7 +43,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_REDBOOT_PARTS_READONLY=y
-CONFIG_MTD_CHAR=m
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
@@ -70,8 +66,6 @@ CONFIG_PATA_PCMCIA=m
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_DM9000=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_HERMES=m
CONFIG_PCMCIA_HERMES=m
CONFIG_RT2X00=m
@@ -118,7 +112,7 @@ CONFIG_FB_PXA=m
CONFIG_FB_PXA_PARAMETERS=y
CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_VGA_CONSOLE is not set
-CONFIG_FRAMEBUFFER_CONSOLE=m
+CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
CONFIG_SOUND=m
CONFIG_SND=m
@@ -130,7 +124,6 @@ CONFIG_SND_PXA2XX_AC97=m
# CONFIG_SND_PCMCIA is not set
CONFIG_SND_SOC=m
CONFIG_SND_PXA2XX_SOC=m
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=m
CONFIG_USB_OHCI_HCD=m
CONFIG_USB_ACM=m
@@ -164,7 +157,6 @@ CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_FS_XATTR is not set
# CONFIG_DNOTIFY is not set
-CONFIG_INOTIFY=y
CONFIG_VFAT_FS=m
CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y
@@ -182,7 +174,5 @@ CONFIG_NLS_UTF8=m
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MUTEXES=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
-CONFIG_DEBUG_ERRORS=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRC_T10DIF=m
diff --git a/arch/arm/configs/zx_defconfig b/arch/arm/configs/zx_defconfig
index d6253a48a9fa..dfc061d87d2f 100644
--- a/arch/arm/configs/zx_defconfig
+++ b/arch/arm/configs/zx_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
@@ -79,7 +78,6 @@ CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HWMON is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_MMC=y
-CONFIG_MMC_UNSAFE_RESUME=y
CONFIG_MMC_BLOCK_MINORS=16
CONFIG_MMC_DW=y
CONFIG_EXT2_FS=y
diff --git a/arch/arm/crypto/Kconfig b/arch/arm/crypto/Kconfig
index b9adedcc5b2e..ec72752d5668 100644
--- a/arch/arm/crypto/Kconfig
+++ b/arch/arm/crypto/Kconfig
@@ -94,14 +94,15 @@ config CRYPTO_AES_ARM_CE
ARMv8 Crypto Extensions
config CRYPTO_GHASH_ARM_CE
- tristate "PMULL-accelerated GHASH using ARMv8 Crypto Extensions"
+ tristate "PMULL-accelerated GHASH using NEON/ARMv8 Crypto Extensions"
depends on KERNEL_MODE_NEON
select CRYPTO_HASH
select CRYPTO_CRYPTD
help
Use an implementation of GHASH (used by the GCM AEAD chaining mode)
that uses the 64x64 to 128 bit polynomial multiplication (vmull.p64)
- that is part of the ARMv8 Crypto Extensions
+ that is part of the ARMv8 Crypto Extensions, or a slower variant that
+ uses the vmull.p8 instruction that is part of the basic NEON ISA.
config CRYPTO_CRCT10DIF_ARM_CE
tristate "CRCT10DIF digest algorithm using PMULL instructions"
diff --git a/arch/arm/crypto/aes-ce-glue.c b/arch/arm/crypto/aes-ce-glue.c
index 883b84d828c5..d0a9cec73707 100644
--- a/arch/arm/crypto/aes-ce-glue.c
+++ b/arch/arm/crypto/aes-ce-glue.c
@@ -14,6 +14,7 @@
#include <crypto/aes.h>
#include <crypto/internal/simd.h>
#include <crypto/internal/skcipher.h>
+#include <linux/cpufeature.h>
#include <linux/module.h>
#include <crypto/xts.h>
@@ -284,9 +285,7 @@ static int ctr_encrypt(struct skcipher_request *req)
ce_aes_ctr_encrypt(tail, NULL, (u8 *)ctx->key_enc,
num_rounds(ctx), blocks, walk.iv);
- if (tdst != tsrc)
- memcpy(tdst, tsrc, nbytes);
- crypto_xor(tdst, tail, nbytes);
+ crypto_xor_cpy(tdst, tsrc, tail, nbytes);
err = skcipher_walk_done(&walk, 0);
}
kernel_neon_end();
@@ -425,9 +424,6 @@ static int __init aes_init(void)
int err;
int i;
- if (!(elf_hwcap2 & HWCAP2_AES))
- return -ENODEV;
-
err = crypto_register_skciphers(aes_algs, ARRAY_SIZE(aes_algs));
if (err)
return err;
@@ -451,5 +447,5 @@ unregister_simds:
return err;
}
-module_init(aes_init);
+module_cpu_feature_match(AES, aes_init);
module_exit(aes_exit);
diff --git a/arch/arm/crypto/aes-cipher-core.S b/arch/arm/crypto/aes-cipher-core.S
index c817a86c4ca8..54b384084637 100644
--- a/arch/arm/crypto/aes-cipher-core.S
+++ b/arch/arm/crypto/aes-cipher-core.S
@@ -10,6 +10,7 @@
*/
#include <linux/linkage.h>
+#include <asm/cache.h>
.text
.align 5
@@ -32,19 +33,19 @@
.endif
.endm
- .macro __load, out, in, idx
+ .macro __load, out, in, idx, sz, op
.if __LINUX_ARM_ARCH__ < 7 && \idx > 0
- ldr \out, [ttab, \in, lsr #(8 * \idx) - 2]
+ ldr\op \out, [ttab, \in, lsr #(8 * \idx) - \sz]
.else
- ldr \out, [ttab, \in, lsl #2]
+ ldr\op \out, [ttab, \in, lsl #\sz]
.endif
.endm
- .macro __hround, out0, out1, in0, in1, in2, in3, t3, t4, enc
+ .macro __hround, out0, out1, in0, in1, in2, in3, t3, t4, enc, sz, op
__select \out0, \in0, 0
__select t0, \in1, 1
- __load \out0, \out0, 0
- __load t0, t0, 1
+ __load \out0, \out0, 0, \sz, \op
+ __load t0, t0, 1, \sz, \op
.if \enc
__select \out1, \in1, 0
@@ -53,10 +54,10 @@
__select \out1, \in3, 0
__select t1, \in0, 1
.endif
- __load \out1, \out1, 0
+ __load \out1, \out1, 0, \sz, \op
__select t2, \in2, 2
- __load t1, t1, 1
- __load t2, t2, 2
+ __load t1, t1, 1, \sz, \op
+ __load t2, t2, 2, \sz, \op
eor \out0, \out0, t0, ror #24
@@ -68,9 +69,9 @@
__select \t3, \in1, 2
__select \t4, \in2, 3
.endif
- __load \t3, \t3, 2
- __load t0, t0, 3
- __load \t4, \t4, 3
+ __load \t3, \t3, 2, \sz, \op
+ __load t0, t0, 3, \sz, \op
+ __load \t4, \t4, 3, \sz, \op
eor \out1, \out1, t1, ror #24
eor \out0, \out0, t2, ror #16
@@ -82,14 +83,14 @@
eor \out1, \out1, t2
.endm
- .macro fround, out0, out1, out2, out3, in0, in1, in2, in3
- __hround \out0, \out1, \in0, \in1, \in2, \in3, \out2, \out3, 1
- __hround \out2, \out3, \in2, \in3, \in0, \in1, \in1, \in2, 1
+ .macro fround, out0, out1, out2, out3, in0, in1, in2, in3, sz=2, op
+ __hround \out0, \out1, \in0, \in1, \in2, \in3, \out2, \out3, 1, \sz, \op
+ __hround \out2, \out3, \in2, \in3, \in0, \in1, \in1, \in2, 1, \sz, \op
.endm
- .macro iround, out0, out1, out2, out3, in0, in1, in2, in3
- __hround \out0, \out1, \in0, \in3, \in2, \in1, \out2, \out3, 0
- __hround \out2, \out3, \in2, \in1, \in0, \in3, \in1, \in0, 0
+ .macro iround, out0, out1, out2, out3, in0, in1, in2, in3, sz=2, op
+ __hround \out0, \out1, \in0, \in3, \in2, \in1, \out2, \out3, 0, \sz, \op
+ __hround \out2, \out3, \in2, \in1, \in0, \in3, \in1, \in0, 0, \sz, \op
.endm
.macro __rev, out, in
@@ -114,7 +115,7 @@
.endif
.endm
- .macro do_crypt, round, ttab, ltab
+ .macro do_crypt, round, ttab, ltab, bsz
push {r3-r11, lr}
ldr r4, [in]
@@ -146,9 +147,12 @@
1: subs rounds, rounds, #4
\round r8, r9, r10, r11, r4, r5, r6, r7
- __adrl ttab, \ltab, ls
+ bls 2f
\round r4, r5, r6, r7, r8, r9, r10, r11
- bhi 0b
+ b 0b
+
+2: __adrl ttab, \ltab
+ \round r4, r5, r6, r7, r8, r9, r10, r11, \bsz, b
#ifdef CONFIG_CPU_BIG_ENDIAN
__rev r4, r4
@@ -170,10 +174,48 @@
.ltorg
.endm
+ .align L1_CACHE_SHIFT
+ .type __aes_arm_inverse_sbox, %object
+__aes_arm_inverse_sbox:
+ .byte 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38
+ .byte 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb
+ .byte 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87
+ .byte 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb
+ .byte 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d
+ .byte 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e
+ .byte 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2
+ .byte 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25
+ .byte 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16
+ .byte 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92
+ .byte 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda
+ .byte 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84
+ .byte 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a
+ .byte 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06
+ .byte 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02
+ .byte 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b
+ .byte 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea
+ .byte 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73
+ .byte 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85
+ .byte 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e
+ .byte 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89
+ .byte 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b
+ .byte 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20
+ .byte 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4
+ .byte 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31
+ .byte 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f
+ .byte 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d
+ .byte 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef
+ .byte 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0
+ .byte 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61
+ .byte 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26
+ .byte 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d
+ .size __aes_arm_inverse_sbox, . - __aes_arm_inverse_sbox
+
ENTRY(__aes_arm_encrypt)
- do_crypt fround, crypto_ft_tab, crypto_fl_tab
+ do_crypt fround, crypto_ft_tab, crypto_ft_tab + 1, 2
ENDPROC(__aes_arm_encrypt)
+ .align 5
ENTRY(__aes_arm_decrypt)
- do_crypt iround, crypto_it_tab, crypto_il_tab
+ do_crypt iround, crypto_it_tab, __aes_arm_inverse_sbox, 0
ENDPROC(__aes_arm_decrypt)
diff --git a/arch/arm/crypto/aes-neonbs-glue.c b/arch/arm/crypto/aes-neonbs-glue.c
index c76377961444..18768f330449 100644
--- a/arch/arm/crypto/aes-neonbs-glue.c
+++ b/arch/arm/crypto/aes-neonbs-glue.c
@@ -221,9 +221,8 @@ static int ctr_encrypt(struct skcipher_request *req)
u8 *dst = walk.dst.virt.addr + blocks * AES_BLOCK_SIZE;
u8 *src = walk.src.virt.addr + blocks * AES_BLOCK_SIZE;
- if (dst != src)
- memcpy(dst, src, walk.total % AES_BLOCK_SIZE);
- crypto_xor(dst, final, walk.total % AES_BLOCK_SIZE);
+ crypto_xor_cpy(dst, src, final,
+ walk.total % AES_BLOCK_SIZE);
err = skcipher_walk_done(&walk, 0);
break;
diff --git a/arch/arm/crypto/crc32-ce-glue.c b/arch/arm/crypto/crc32-ce-glue.c
index e1566bec1016..1b0e0e86ee9c 100644
--- a/arch/arm/crypto/crc32-ce-glue.c
+++ b/arch/arm/crypto/crc32-ce-glue.c
@@ -8,6 +8,7 @@
* published by the Free Software Foundation.
*/
+#include <linux/cpufeature.h>
#include <linux/crc32.h>
#include <linux/init.h>
#include <linux/kernel.h>
@@ -233,6 +234,11 @@ static void __exit crc32_pmull_mod_exit(void)
ARRAY_SIZE(crc32_pmull_algs));
}
+static const struct cpu_feature crc32_cpu_feature[] = {
+ { cpu_feature(CRC32) }, { cpu_feature(PMULL) }, { }
+};
+MODULE_DEVICE_TABLE(cpu, crc32_cpu_feature);
+
module_init(crc32_pmull_mod_init);
module_exit(crc32_pmull_mod_exit);
diff --git a/arch/arm/crypto/ghash-ce-core.S b/arch/arm/crypto/ghash-ce-core.S
index f6ab8bcc9efe..2f78c10b1881 100644
--- a/arch/arm/crypto/ghash-ce-core.S
+++ b/arch/arm/crypto/ghash-ce-core.S
@@ -1,7 +1,7 @@
/*
- * Accelerated GHASH implementation with ARMv8 vmull.p64 instructions.
+ * Accelerated GHASH implementation with NEON/ARMv8 vmull.p8/64 instructions.
*
- * Copyright (C) 2015 Linaro Ltd. <ard.biesheuvel@linaro.org>
+ * Copyright (C) 2015 - 2017 Linaro Ltd. <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
@@ -12,40 +12,162 @@
#include <asm/assembler.h>
SHASH .req q0
- SHASH2 .req q1
- T1 .req q2
- T2 .req q3
- MASK .req q4
- XL .req q5
- XM .req q6
- XH .req q7
- IN1 .req q7
+ T1 .req q1
+ XL .req q2
+ XM .req q3
+ XH .req q4
+ IN1 .req q4
SHASH_L .req d0
SHASH_H .req d1
- SHASH2_L .req d2
- T1_L .req d4
- MASK_L .req d8
- XL_L .req d10
- XL_H .req d11
- XM_L .req d12
- XM_H .req d13
- XH_L .req d14
+ T1_L .req d2
+ T1_H .req d3
+ XL_L .req d4
+ XL_H .req d5
+ XM_L .req d6
+ XM_H .req d7
+ XH_L .req d8
+
+ t0l .req d10
+ t0h .req d11
+ t1l .req d12
+ t1h .req d13
+ t2l .req d14
+ t2h .req d15
+ t3l .req d16
+ t3h .req d17
+ t4l .req d18
+ t4h .req d19
+
+ t0q .req q5
+ t1q .req q6
+ t2q .req q7
+ t3q .req q8
+ t4q .req q9
+ T2 .req q9
+
+ s1l .req d20
+ s1h .req d21
+ s2l .req d22
+ s2h .req d23
+ s3l .req d24
+ s3h .req d25
+ s4l .req d26
+ s4h .req d27
+
+ MASK .req d28
+ SHASH2_p8 .req d28
+
+ k16 .req d29
+ k32 .req d30
+ k48 .req d31
+ SHASH2_p64 .req d31
.text
.fpu crypto-neon-fp-armv8
+ .macro __pmull_p64, rd, rn, rm, b1, b2, b3, b4
+ vmull.p64 \rd, \rn, \rm
+ .endm
+
/*
- * void pmull_ghash_update(int blocks, u64 dg[], const char *src,
- * struct ghash_key const *k, const char *head)
+ * This implementation of 64x64 -> 128 bit polynomial multiplication
+ * using vmull.p8 instructions (8x8 -> 16) is taken from the paper
+ * "Fast Software Polynomial Multiplication on ARM Processors Using
+ * the NEON Engine" by Danilo Camara, Conrado Gouvea, Julio Lopez and
+ * Ricardo Dahab (https://hal.inria.fr/hal-01506572)
+ *
+ * It has been slightly tweaked for in-order performance, and to allow
+ * 'rq' to overlap with 'ad' or 'bd'.
*/
-ENTRY(pmull_ghash_update)
- vld1.64 {SHASH}, [r3]
+ .macro __pmull_p8, rq, ad, bd, b1=t4l, b2=t3l, b3=t4l, b4=t3l
+ vext.8 t0l, \ad, \ad, #1 @ A1
+ .ifc \b1, t4l
+ vext.8 t4l, \bd, \bd, #1 @ B1
+ .endif
+ vmull.p8 t0q, t0l, \bd @ F = A1*B
+ vext.8 t1l, \ad, \ad, #2 @ A2
+ vmull.p8 t4q, \ad, \b1 @ E = A*B1
+ .ifc \b2, t3l
+ vext.8 t3l, \bd, \bd, #2 @ B2
+ .endif
+ vmull.p8 t1q, t1l, \bd @ H = A2*B
+ vext.8 t2l, \ad, \ad, #3 @ A3
+ vmull.p8 t3q, \ad, \b2 @ G = A*B2
+ veor t0q, t0q, t4q @ L = E + F
+ .ifc \b3, t4l
+ vext.8 t4l, \bd, \bd, #3 @ B3
+ .endif
+ vmull.p8 t2q, t2l, \bd @ J = A3*B
+ veor t0l, t0l, t0h @ t0 = (L) (P0 + P1) << 8
+ veor t1q, t1q, t3q @ M = G + H
+ .ifc \b4, t3l
+ vext.8 t3l, \bd, \bd, #4 @ B4
+ .endif
+ vmull.p8 t4q, \ad, \b3 @ I = A*B3
+ veor t1l, t1l, t1h @ t1 = (M) (P2 + P3) << 16
+ vmull.p8 t3q, \ad, \b4 @ K = A*B4
+ vand t0h, t0h, k48
+ vand t1h, t1h, k32
+ veor t2q, t2q, t4q @ N = I + J
+ veor t0l, t0l, t0h
+ veor t1l, t1l, t1h
+ veor t2l, t2l, t2h @ t2 = (N) (P4 + P5) << 24
+ vand t2h, t2h, k16
+ veor t3l, t3l, t3h @ t3 = (K) (P6 + P7) << 32
+ vmov.i64 t3h, #0
+ vext.8 t0q, t0q, t0q, #15
+ veor t2l, t2l, t2h
+ vext.8 t1q, t1q, t1q, #14
+ vmull.p8 \rq, \ad, \bd @ D = A*B
+ vext.8 t2q, t2q, t2q, #13
+ vext.8 t3q, t3q, t3q, #12
+ veor t0q, t0q, t1q
+ veor t2q, t2q, t3q
+ veor \rq, \rq, t0q
+ veor \rq, \rq, t2q
+ .endm
+
+ //
+ // PMULL (64x64->128) based reduction for CPUs that can do
+ // it in a single instruction.
+ //
+ .macro __pmull_reduce_p64
+ vmull.p64 T1, XL_L, MASK
+
+ veor XH_L, XH_L, XM_H
+ vext.8 T1, T1, T1, #8
+ veor XL_H, XL_H, XM_L
+ veor T1, T1, XL
+
+ vmull.p64 XL, T1_H, MASK
+ .endm
+
+ //
+ // Alternative reduction for CPUs that lack support for the
+ // 64x64->128 PMULL instruction
+ //
+ .macro __pmull_reduce_p8
+ veor XL_H, XL_H, XM_L
+ veor XH_L, XH_L, XM_H
+
+ vshl.i64 T1, XL, #57
+ vshl.i64 T2, XL, #62
+ veor T1, T1, T2
+ vshl.i64 T2, XL, #63
+ veor T1, T1, T2
+ veor XL_H, XL_H, T1_L
+ veor XH_L, XH_L, T1_H
+
+ vshr.u64 T1, XL, #1
+ veor XH, XH, XL
+ veor XL, XL, T1
+ vshr.u64 T1, T1, #6
+ vshr.u64 XL, XL, #1
+ .endm
+
+ .macro ghash_update, pn
vld1.64 {XL}, [r1]
- vmov.i8 MASK, #0xe1
- vext.8 SHASH2, SHASH, SHASH, #8
- vshl.u64 MASK, MASK, #57
- veor SHASH2, SHASH2, SHASH
/* do the head block first, if supplied */
ldr ip, [sp]
@@ -62,33 +184,59 @@ ENTRY(pmull_ghash_update)
#ifndef CONFIG_CPU_BIG_ENDIAN
vrev64.8 T1, T1
#endif
- vext.8 T2, XL, XL, #8
vext.8 IN1, T1, T1, #8
- veor T1, T1, T2
+ veor T1_L, T1_L, XL_H
veor XL, XL, IN1
- vmull.p64 XH, SHASH_H, XL_H @ a1 * b1
+ __pmull_\pn XH, XL_H, SHASH_H, s1h, s2h, s3h, s4h @ a1 * b1
veor T1, T1, XL
- vmull.p64 XL, SHASH_L, XL_L @ a0 * b0
- vmull.p64 XM, SHASH2_L, T1_L @ (a1 + a0)(b1 + b0)
+ __pmull_\pn XL, XL_L, SHASH_L, s1l, s2l, s3l, s4l @ a0 * b0
+ __pmull_\pn XM, T1_L, SHASH2_\pn @ (a1+a0)(b1+b0)
- vext.8 T1, XL, XH, #8
- veor T2, XL, XH
+ veor T1, XL, XH
veor XM, XM, T1
- veor XM, XM, T2
- vmull.p64 T2, XL_L, MASK_L
- vmov XH_L, XM_H
- vmov XM_H, XL_L
+ __pmull_reduce_\pn
- veor XL, XM, T2
- vext.8 T2, XL, XL, #8
- vmull.p64 XL, XL_L, MASK_L
- veor T2, T2, XH
- veor XL, XL, T2
+ veor T1, T1, XH
+ veor XL, XL, T1
bne 0b
vst1.64 {XL}, [r1]
bx lr
-ENDPROC(pmull_ghash_update)
+ .endm
+
+ /*
+ * void pmull_ghash_update(int blocks, u64 dg[], const char *src,
+ * struct ghash_key const *k, const char *head)
+ */
+ENTRY(pmull_ghash_update_p64)
+ vld1.64 {SHASH}, [r3]
+ veor SHASH2_p64, SHASH_L, SHASH_H
+
+ vmov.i8 MASK, #0xe1
+ vshl.u64 MASK, MASK, #57
+
+ ghash_update p64
+ENDPROC(pmull_ghash_update_p64)
+
+ENTRY(pmull_ghash_update_p8)
+ vld1.64 {SHASH}, [r3]
+ veor SHASH2_p8, SHASH_L, SHASH_H
+
+ vext.8 s1l, SHASH_L, SHASH_L, #1
+ vext.8 s2l, SHASH_L, SHASH_L, #2
+ vext.8 s3l, SHASH_L, SHASH_L, #3
+ vext.8 s4l, SHASH_L, SHASH_L, #4
+ vext.8 s1h, SHASH_H, SHASH_H, #1
+ vext.8 s2h, SHASH_H, SHASH_H, #2
+ vext.8 s3h, SHASH_H, SHASH_H, #3
+ vext.8 s4h, SHASH_H, SHASH_H, #4
+
+ vmov.i64 k16, #0xffff
+ vmov.i64 k32, #0xffffffff
+ vmov.i64 k48, #0xffffffffffff
+
+ ghash_update p8
+ENDPROC(pmull_ghash_update_p8)
diff --git a/arch/arm/crypto/ghash-ce-glue.c b/arch/arm/crypto/ghash-ce-glue.c
index 7546b3c02466..d9bb52cae2ac 100644
--- a/arch/arm/crypto/ghash-ce-glue.c
+++ b/arch/arm/crypto/ghash-ce-glue.c
@@ -15,12 +15,14 @@
#include <crypto/cryptd.h>
#include <crypto/internal/hash.h>
#include <crypto/gf128mul.h>
+#include <linux/cpufeature.h>
#include <linux/crypto.h>
#include <linux/module.h>
MODULE_DESCRIPTION("GHASH secure hash using ARMv8 Crypto Extensions");
MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
MODULE_LICENSE("GPL v2");
+MODULE_ALIAS_CRYPTO("ghash");
#define GHASH_BLOCK_SIZE 16
#define GHASH_DIGEST_SIZE 16
@@ -40,8 +42,17 @@ struct ghash_async_ctx {
struct cryptd_ahash *cryptd_tfm;
};
-asmlinkage void pmull_ghash_update(int blocks, u64 dg[], const char *src,
- struct ghash_key const *k, const char *head);
+asmlinkage void pmull_ghash_update_p64(int blocks, u64 dg[], const char *src,
+ struct ghash_key const *k,
+ const char *head);
+
+asmlinkage void pmull_ghash_update_p8(int blocks, u64 dg[], const char *src,
+ struct ghash_key const *k,
+ const char *head);
+
+static void (*pmull_ghash_update)(int blocks, u64 dg[], const char *src,
+ struct ghash_key const *k,
+ const char *head);
static int ghash_init(struct shash_desc *desc)
{
@@ -311,9 +322,14 @@ static int __init ghash_ce_mod_init(void)
{
int err;
- if (!(elf_hwcap2 & HWCAP2_PMULL))
+ if (!(elf_hwcap & HWCAP_NEON))
return -ENODEV;
+ if (elf_hwcap2 & HWCAP2_PMULL)
+ pmull_ghash_update = pmull_ghash_update_p64;
+ else
+ pmull_ghash_update = pmull_ghash_update_p8;
+
err = crypto_register_shash(&ghash_alg);
if (err)
return err;
diff --git a/arch/arm/crypto/sha1-ce-glue.c b/arch/arm/crypto/sha1-ce-glue.c
index 80bc2fcd241a..555f72b5e659 100644
--- a/arch/arm/crypto/sha1-ce-glue.c
+++ b/arch/arm/crypto/sha1-ce-glue.c
@@ -11,6 +11,7 @@
#include <crypto/internal/hash.h>
#include <crypto/sha.h>
#include <crypto/sha1_base.h>
+#include <linux/cpufeature.h>
#include <linux/crypto.h>
#include <linux/module.h>
@@ -82,8 +83,6 @@ static struct shash_alg alg = {
static int __init sha1_ce_mod_init(void)
{
- if (!(elf_hwcap2 & HWCAP2_SHA1))
- return -ENODEV;
return crypto_register_shash(&alg);
}
@@ -92,5 +91,5 @@ static void __exit sha1_ce_mod_fini(void)
crypto_unregister_shash(&alg);
}
-module_init(sha1_ce_mod_init);
+module_cpu_feature_match(SHA1, sha1_ce_mod_init);
module_exit(sha1_ce_mod_fini);
diff --git a/arch/arm/crypto/sha2-ce-glue.c b/arch/arm/crypto/sha2-ce-glue.c
index 0755b2d657f3..df4dcef054ae 100644
--- a/arch/arm/crypto/sha2-ce-glue.c
+++ b/arch/arm/crypto/sha2-ce-glue.c
@@ -11,6 +11,7 @@
#include <crypto/internal/hash.h>
#include <crypto/sha.h>
#include <crypto/sha256_base.h>
+#include <linux/cpufeature.h>
#include <linux/crypto.h>
#include <linux/module.h>
@@ -100,8 +101,6 @@ static struct shash_alg algs[] = { {
static int __init sha2_ce_mod_init(void)
{
- if (!(elf_hwcap2 & HWCAP2_SHA2))
- return -ENODEV;
return crypto_register_shashes(algs, ARRAY_SIZE(algs));
}
@@ -110,5 +109,5 @@ static void __exit sha2_ce_mod_fini(void)
crypto_unregister_shashes(algs, ARRAY_SIZE(algs));
}
-module_init(sha2_ce_mod_init);
+module_cpu_feature_match(SHA2, sha2_ce_mod_init);
module_exit(sha2_ce_mod_fini);
diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild
index 3a36d99ff836..721ab5ecfb9b 100644
--- a/arch/arm/include/asm/Kbuild
+++ b/arch/arm/include/asm/Kbuild
@@ -1,40 +1,23 @@
-
-
-generic-y += bitsperlong.h
generic-y += clkdev.h
generic-y += current.h
generic-y += early_ioremap.h
generic-y += emergency-restart.h
-generic-y += errno.h
generic-y += exec.h
generic-y += extable.h
-generic-y += ioctl.h
-generic-y += ipcbuf.h
generic-y += irq_regs.h
generic-y += kdebug.h
generic-y += local.h
generic-y += local64.h
generic-y += mm-arch-hooks.h
-generic-y += msgbuf.h
generic-y += msi.h
-generic-y += param.h
generic-y += parport.h
-generic-y += poll.h
generic-y += preempt.h
-generic-y += resource.h
generic-y += rwsem.h
generic-y += seccomp.h
generic-y += segment.h
-generic-y += sembuf.h
generic-y += serial.h
-generic-y += shmbuf.h
-generic-y += siginfo.h
generic-y += simd.h
generic-y += sizes.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += termbits.h
-generic-y += termios.h
generic-y += timex.h
generic-y += trace_clock.h
generic-y += unaligned.h
diff --git a/arch/arm/include/asm/arch_gicv3.h b/arch/arm/include/asm/arch_gicv3.h
index 27475904e096..eee269321923 100644
--- a/arch/arm/include/asm/arch_gicv3.h
+++ b/arch/arm/include/asm/arch_gicv3.h
@@ -276,6 +276,12 @@ static inline u64 __gic_readq_nonatomic(const volatile void __iomem *addr)
#define gicr_write_pendbaser(v, c) __gic_writeq_nonatomic(v, c)
/*
+ * GICR_xLPIR - only the lower bits are significant
+ */
+#define gic_read_lpir(c) readl_relaxed(c)
+#define gic_write_lpir(v, c) writel_relaxed(lower_32_bits(v), c)
+
+/*
* GITS_TYPER is an ID register and doesn't need atomicity.
*/
#define gits_read_typer(c) __gic_readq_nonatomic(c)
@@ -291,5 +297,33 @@ static inline u64 __gic_readq_nonatomic(const volatile void __iomem *addr)
*/
#define gits_write_cwriter(v, c) __gic_writeq_nonatomic(v, c)
+/*
+ * GITS_VPROPBASER - hi and lo bits may be accessed independently.
+ */
+#define gits_write_vpropbaser(v, c) __gic_writeq_nonatomic(v, c)
+
+/*
+ * GITS_VPENDBASER - the Valid bit must be cleared before changing
+ * anything else.
+ */
+static inline void gits_write_vpendbaser(u64 val, void * __iomem addr)
+{
+ u32 tmp;
+
+ tmp = readl_relaxed(addr + 4);
+ if (tmp & (GICR_VPENDBASER_Valid >> 32)) {
+ tmp &= ~(GICR_VPENDBASER_Valid >> 32);
+ writel_relaxed(tmp, addr + 4);
+ }
+
+ /*
+ * Use the fact that __gic_writeq_nonatomic writes the second
+ * half of the 64bit quantity after the first.
+ */
+ __gic_writeq_nonatomic(val, addr);
+}
+
+#define gits_read_vpendbaser(c) __gic_readq_nonatomic(c)
+
#endif /* !__ASSEMBLY__ */
#endif /* !__ASM_ARCH_GICV3_H */
diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index 68b06f9c65de..ad301f107dd2 100644
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -87,6 +87,8 @@
#define CALGN(code...)
#endif
+#define IMM12_MASK 0xfff
+
/*
* Enable and disable interrupts
*/
diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h
index e943e6cee254..f308c8c40cb9 100644
--- a/arch/arm/include/asm/bitops.h
+++ b/arch/arm/include/asm/bitops.h
@@ -159,16 +159,16 @@ extern int _test_and_change_bit(int nr, volatile unsigned long * p);
/*
* Little endian assembly bitops. nr = 0 -> byte 0 bit 0.
*/
-extern int _find_first_zero_bit_le(const void * p, unsigned size);
-extern int _find_next_zero_bit_le(const void * p, int size, int offset);
+extern int _find_first_zero_bit_le(const unsigned long *p, unsigned size);
+extern int _find_next_zero_bit_le(const unsigned long *p, int size, int offset);
extern int _find_first_bit_le(const unsigned long *p, unsigned size);
extern int _find_next_bit_le(const unsigned long *p, int size, int offset);
/*
* Big endian assembly bitops. nr = 0 -> byte 3 bit 0.
*/
-extern int _find_first_zero_bit_be(const void * p, unsigned size);
-extern int _find_next_zero_bit_be(const void * p, int size, int offset);
+extern int _find_first_zero_bit_be(const unsigned long *p, unsigned size);
+extern int _find_next_zero_bit_be(const unsigned long *p, int size, int offset);
extern int _find_first_bit_be(const unsigned long *p, unsigned size);
extern int _find_next_bit_be(const unsigned long *p, int size, int offset);
diff --git a/arch/arm/include/asm/bug.h b/arch/arm/include/asm/bug.h
index 4e6e88a6b2f4..2244a94ed9c9 100644
--- a/arch/arm/include/asm/bug.h
+++ b/arch/arm/include/asm/bug.h
@@ -37,7 +37,7 @@ do { \
".pushsection .rodata.str, \"aMS\", %progbits, 1\n" \
"2:\t.asciz " #__file "\n" \
".popsection\n" \
- ".pushsection __bug_table,\"a\"\n" \
+ ".pushsection __bug_table,\"aw\"\n" \
".align 2\n" \
"3:\t.word 1b, 2b\n" \
"\t.hword " #__line ", 0\n" \
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index d69bebf697e7..74504b154256 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -116,7 +116,7 @@ struct cpu_cache_fns {
void (*dma_unmap_area)(const void *, size_t, int);
void (*dma_flush_range)(const void *, const void *);
-};
+} __no_randomize_layout;
/*
* Select the calling method
diff --git a/arch/arm/include/asm/dma-iommu.h b/arch/arm/include/asm/dma-iommu.h
index 2ef282f96651..c090ec675eac 100644
--- a/arch/arm/include/asm/dma-iommu.h
+++ b/arch/arm/include/asm/dma-iommu.h
@@ -9,6 +9,8 @@
#include <linux/kmemcheck.h>
#include <linux/kref.h>
+#define ARM_MAPPING_ERROR (~(dma_addr_t)0x0)
+
struct dma_iommu_mapping {
/* iommu specific data */
struct iommu_domain *domain;
@@ -33,5 +35,7 @@ int arm_iommu_attach_device(struct device *dev,
struct dma_iommu_mapping *mapping);
void arm_iommu_detach_device(struct device *dev);
+int arm_dma_supported(struct device *dev, u64 mask);
+
#endif /* __KERNEL__ */
#endif
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 680d3f3889e7..4e0285a66ef8 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -12,18 +12,14 @@
#include <xen/xen.h>
#include <asm/xen/hypervisor.h>
-#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
extern const struct dma_map_ops arm_dma_ops;
extern const struct dma_map_ops arm_coherent_dma_ops;
static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- return &arm_dma_ops;
+ return IS_ENABLED(CONFIG_MMU) ? &arm_dma_ops : &dma_noop_ops;
}
-#define HAVE_ARCH_DMA_SUPPORTED 1
-extern int dma_supported(struct device *dev, u64 mask);
-
#ifdef __arch_page_to_dma
#error Please update to __arch_pfn_to_dma
#endif
diff --git a/arch/arm/include/asm/dmi.h b/arch/arm/include/asm/dmi.h
new file mode 100644
index 000000000000..df2d2ff06f5b
--- /dev/null
+++ b/arch/arm/include/asm/dmi.h
@@ -0,0 +1,19 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ASM_DMI_H
+#define __ASM_DMI_H
+
+#include <linux/io.h>
+#include <linux/slab.h>
+
+#define dmi_early_remap(x, l) memremap(x, l, MEMREMAP_WB)
+#define dmi_early_unmap(x, l) memunmap(x)
+#define dmi_remap(x, l) memremap(x, l, MEMREMAP_WB)
+#define dmi_unmap(x) memunmap(x)
+#define dmi_alloc(l) kzalloc(l, GFP_KERNEL)
+
+#endif
diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h
index d2315ffd8f12..f13ae153fb24 100644
--- a/arch/arm/include/asm/elf.h
+++ b/arch/arm/include/asm/elf.h
@@ -112,12 +112,8 @@ int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
#define CORE_DUMP_USE_REGSET
#define ELF_EXEC_PAGESIZE 4096
-/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
- use of this is to invoke "./ld.so someprog" to test out a new version of
- the loader. We need to make sure that it is out of the way of the program
- that it will "exec", and that there is sufficient room for the brk. */
-
-#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
+/* This is the base location for PIE (ET_DYN with INTERP) loads. */
+#define ELF_ET_DYN_BASE 0x400000UL
/* When the program starts, a1 contains a pointer to a function to be
registered with atexit, as per the SVR4 ABI. A value of 0 means we
diff --git a/arch/arm/include/asm/flat.h b/arch/arm/include/asm/flat.h
index acf1d14b89a6..29d3a1524bce 100644
--- a/arch/arm/include/asm/flat.h
+++ b/arch/arm/include/asm/flat.h
@@ -5,12 +5,31 @@
#ifndef __ARM_FLAT_H__
#define __ARM_FLAT_H__
+#include <linux/uaccess.h>
+
#define flat_argvp_envp_on_stack() 1
#define flat_old_ram_flag(flags) (flags)
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
- ({ unsigned long __val; __get_user_unaligned(__val, rp); __val; })
-#define flat_put_addr_at_rp(rp, val, relval) __put_user_unaligned(val, rp)
+
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+ return copy_from_user(addr, rp, 4) ? -EFAULT : 0;
+#else
+ return get_user(*addr, rp);
+#endif
+}
+
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+ return copy_to_user(rp, &addr, 4) ? -EFAULT : 0;
+#else
+ return put_user(addr, rp);
+#endif
+}
+
#define flat_get_relocate_addr(rel) (rel)
#define flat_set_persistent(relval, p) 0
diff --git a/arch/arm/include/asm/ftrace.h b/arch/arm/include/asm/ftrace.h
index 22b73112b75f..f379881d5cc3 100644
--- a/arch/arm/include/asm/ftrace.h
+++ b/arch/arm/include/asm/ftrace.h
@@ -1,6 +1,10 @@
#ifndef _ASM_ARM_FTRACE
#define _ASM_ARM_FTRACE
+#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
+#define ARCH_SUPPORTS_FTRACE_OPS 1
+#endif
+
#ifdef CONFIG_FUNCTION_TRACER
#define MCOUNT_ADDR ((unsigned long)(__gnu_mcount_nc))
#define MCOUNT_INSN_SIZE 4 /* sizeof mcount call */
diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h
index 6795368ad023..cc414382dab4 100644
--- a/arch/arm/include/asm/futex.h
+++ b/arch/arm/include/asm/futex.h
@@ -128,20 +128,10 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
#endif /* !SMP */
static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
int oldval = 0, ret, tmp;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
- return -EFAULT;
-
#ifndef CONFIG_SMP
preempt_disable();
#endif
@@ -172,17 +162,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
preempt_enable();
#endif
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
- case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
- case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
- case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
- case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
- case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
- default: ret = -ENOSYS;
- }
- }
+ if (!ret)
+ *oval = oldval;
+
return ret;
}
diff --git a/arch/arm/include/asm/kexec.h b/arch/arm/include/asm/kexec.h
index 1869af6bac5c..25021b798a1e 100644
--- a/arch/arm/include/asm/kexec.h
+++ b/arch/arm/include/asm/kexec.h
@@ -19,6 +19,11 @@
#ifndef __ASSEMBLY__
+#define ARCH_HAS_KIMAGE_ARCH
+struct kimage_arch {
+ u32 kernel_r2;
+};
+
/**
* crash_setup_regs() - save registers for the panic kernel
* @newregs: registers are saved here
diff --git a/arch/arm/include/asm/kvm_arm.h b/arch/arm/include/asm/kvm_arm.h
index a3f0b3d50089..c8781450905b 100644
--- a/arch/arm/include/asm/kvm_arm.h
+++ b/arch/arm/include/asm/kvm_arm.h
@@ -187,6 +187,16 @@
#define FSC_FAULT (0x04)
#define FSC_ACCESS (0x08)
#define FSC_PERM (0x0c)
+#define FSC_SEA (0x10)
+#define FSC_SEA_TTW0 (0x14)
+#define FSC_SEA_TTW1 (0x15)
+#define FSC_SEA_TTW2 (0x16)
+#define FSC_SEA_TTW3 (0x17)
+#define FSC_SECC (0x18)
+#define FSC_SECC_TTW0 (0x1c)
+#define FSC_SECC_TTW1 (0x1d)
+#define FSC_SECC_TTW2 (0x1e)
+#define FSC_SECC_TTW3 (0x1f)
/* Hyp Prefetch Fault Address Register (HPFAR/HDFAR) */
#define HPFAR_MASK (~0xf)
@@ -217,7 +227,6 @@
#define HSR_DABT_S1PTW (_AC(1, UL) << 7)
#define HSR_DABT_CM (_AC(1, UL) << 8)
-#define HSR_DABT_EA (_AC(1, UL) << 9)
#define kvm_arm_exception_type \
{0, "RESET" }, \
diff --git a/arch/arm/include/asm/kvm_emulate.h b/arch/arm/include/asm/kvm_emulate.h
index 9a8a45aaf19a..98089ffd91bb 100644
--- a/arch/arm/include/asm/kvm_emulate.h
+++ b/arch/arm/include/asm/kvm_emulate.h
@@ -149,11 +149,6 @@ static inline int kvm_vcpu_dabt_get_rd(struct kvm_vcpu *vcpu)
return (kvm_vcpu_get_hsr(vcpu) & HSR_SRT_MASK) >> HSR_SRT_SHIFT;
}
-static inline bool kvm_vcpu_dabt_isextabt(struct kvm_vcpu *vcpu)
-{
- return kvm_vcpu_get_hsr(vcpu) & HSR_DABT_EA;
-}
-
static inline bool kvm_vcpu_dabt_iss1tw(struct kvm_vcpu *vcpu)
{
return kvm_vcpu_get_hsr(vcpu) & HSR_DABT_S1PTW;
@@ -206,6 +201,25 @@ static inline u8 kvm_vcpu_trap_get_fault_type(struct kvm_vcpu *vcpu)
return kvm_vcpu_get_hsr(vcpu) & HSR_FSC_TYPE;
}
+static inline bool kvm_vcpu_dabt_isextabt(struct kvm_vcpu *vcpu)
+{
+ switch (kvm_vcpu_trap_get_fault_type(vcpu)) {
+ case FSC_SEA:
+ case FSC_SEA_TTW0:
+ case FSC_SEA_TTW1:
+ case FSC_SEA_TTW2:
+ case FSC_SEA_TTW3:
+ case FSC_SECC:
+ case FSC_SECC_TTW0:
+ case FSC_SECC_TTW1:
+ case FSC_SECC_TTW2:
+ case FSC_SECC_TTW3:
+ return true;
+ default:
+ return false;
+ }
+}
+
static inline u32 kvm_vcpu_hvc_get_imm(struct kvm_vcpu *vcpu)
{
return kvm_vcpu_get_hsr(vcpu) & HSR_HVC_IMM_MASK;
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index f0e66577ce05..4a879f6ff13b 100644
--- a/arch/arm/include/asm/kvm_host.h
+++ b/arch/arm/include/asm/kvm_host.h
@@ -44,7 +44,9 @@
#define KVM_MAX_VCPUS VGIC_V2_MAX_CPUS
#endif
-#define KVM_REQ_VCPU_EXIT (8 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
+#define KVM_REQ_SLEEP \
+ KVM_ARCH_REQ_FLAGS(0, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
+#define KVM_REQ_IRQ_PENDING KVM_ARCH_REQ(1)
u32 *kvm_vcpu_reg(struct kvm_vcpu *vcpu, u8 reg_num, u32 mode);
int __attribute_const__ kvm_target_cpu(void);
@@ -223,18 +225,10 @@ int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices);
int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
-/* We do not have shadow page tables, hence the empty hooks */
-static inline void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm,
- unsigned long address)
-{
-}
-
struct kvm_vcpu *kvm_arm_get_running_vcpu(void);
struct kvm_vcpu __percpu **kvm_get_running_vcpus(void);
void kvm_arm_halt_guest(struct kvm *kvm);
void kvm_arm_resume_guest(struct kvm *kvm);
-void kvm_arm_halt_vcpu(struct kvm_vcpu *vcpu);
-void kvm_arm_resume_vcpu(struct kvm_vcpu *vcpu);
int kvm_arm_copy_coproc_indices(struct kvm_vcpu *vcpu, u64 __user *uindices);
unsigned long kvm_arm_num_coproc_regs(struct kvm_vcpu *vcpu);
@@ -291,20 +285,12 @@ static inline void kvm_arm_init_debug(void) {}
static inline void kvm_arm_setup_debug(struct kvm_vcpu *vcpu) {}
static inline void kvm_arm_clear_debug(struct kvm_vcpu *vcpu) {}
static inline void kvm_arm_reset_debug_ptr(struct kvm_vcpu *vcpu) {}
-static inline int kvm_arm_vcpu_arch_set_attr(struct kvm_vcpu *vcpu,
- struct kvm_device_attr *attr)
-{
- return -ENXIO;
-}
-static inline int kvm_arm_vcpu_arch_get_attr(struct kvm_vcpu *vcpu,
- struct kvm_device_attr *attr)
-{
- return -ENXIO;
-}
-static inline int kvm_arm_vcpu_arch_has_attr(struct kvm_vcpu *vcpu,
- struct kvm_device_attr *attr)
-{
- return -ENXIO;
-}
+
+int kvm_arm_vcpu_arch_set_attr(struct kvm_vcpu *vcpu,
+ struct kvm_device_attr *attr);
+int kvm_arm_vcpu_arch_get_attr(struct kvm_vcpu *vcpu,
+ struct kvm_device_attr *attr);
+int kvm_arm_vcpu_arch_has_attr(struct kvm_vcpu *vcpu,
+ struct kvm_device_attr *attr);
#endif /* __ARM_KVM_HOST_H__ */
diff --git a/arch/arm/include/asm/kvm_hyp.h b/arch/arm/include/asm/kvm_hyp.h
index 58508900c4bb..14b5903f0224 100644
--- a/arch/arm/include/asm/kvm_hyp.h
+++ b/arch/arm/include/asm/kvm_hyp.h
@@ -110,8 +110,8 @@ void __sysreg_restore_state(struct kvm_cpu_context *ctxt);
void __vgic_v3_save_state(struct kvm_vcpu *vcpu);
void __vgic_v3_restore_state(struct kvm_vcpu *vcpu);
-void asmlinkage __vfp_save_state(struct vfp_hard_struct *vfp);
-void asmlinkage __vfp_restore_state(struct vfp_hard_struct *vfp);
+asmlinkage void __vfp_save_state(struct vfp_hard_struct *vfp);
+asmlinkage void __vfp_restore_state(struct vfp_hard_struct *vfp);
static inline bool __vfp_enabled(void)
{
return !(read_sysreg(HCPTR) & (HCPTR_TCP(11) | HCPTR_TCP(10)));
@@ -120,8 +120,8 @@ static inline bool __vfp_enabled(void)
void __hyp_text __banked_save_state(struct kvm_cpu_context *ctxt);
void __hyp_text __banked_restore_state(struct kvm_cpu_context *ctxt);
-int asmlinkage __guest_enter(struct kvm_vcpu *vcpu,
+asmlinkage int __guest_enter(struct kvm_vcpu *vcpu,
struct kvm_cpu_context *host);
-int asmlinkage __hyp_do_panic(const char *, int, u32);
+asmlinkage int __hyp_do_panic(const char *, int, u32);
#endif /* __ARM_KVM_HYP_H__ */
diff --git a/arch/arm/include/asm/mach/pci.h b/arch/arm/include/asm/mach/pci.h
index 2d88af5be45f..233b4b50eff3 100644
--- a/arch/arm/include/asm/mach/pci.h
+++ b/arch/arm/include/asm/mach/pci.h
@@ -16,6 +16,7 @@
struct pci_sys_data;
struct pci_ops;
struct pci_bus;
+struct pci_host_bridge;
struct device;
struct hw_pci {
@@ -25,7 +26,7 @@ struct hw_pci {
unsigned int io_optional:1;
void **private_data;
int (*setup)(int nr, struct pci_sys_data *);
- struct pci_bus *(*scan)(int nr, struct pci_sys_data *);
+ int (*scan)(int nr, struct pci_host_bridge *);
void (*preinit)(void);
void (*postinit)(void);
u8 (*swizzle)(struct pci_dev *dev, u8 *pin);
diff --git a/arch/arm/include/asm/page-nommu.h b/arch/arm/include/asm/page-nommu.h
index 503f488053de..8f2c47bec375 100644
--- a/arch/arm/include/asm/page-nommu.h
+++ b/arch/arm/include/asm/page-nommu.h
@@ -11,12 +11,6 @@
#ifndef _ASMARM_PAGE_NOMMU_H
#define _ASMARM_PAGE_NOMMU_H
-#if !defined(CONFIG_SMALL_TASKS) && PAGE_SHIFT < 13
-#define KTHREAD_SIZE (8192)
-#else
-#define KTHREAD_SIZE PAGE_SIZE
-#endif
-
#define clear_page(page) memset((page), 0, PAGE_SIZE)
#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE)
diff --git a/arch/arm/include/asm/smp_scu.h b/arch/arm/include/asm/smp_scu.h
index bfe163c40024..5983f6bc62d5 100644
--- a/arch/arm/include/asm/smp_scu.h
+++ b/arch/arm/include/asm/smp_scu.h
@@ -7,6 +7,7 @@
#ifndef __ASSEMBLER__
+#include <linux/errno.h>
#include <asm/cputype.h>
static inline bool scu_a9_has_base(void)
diff --git a/arch/arm/include/asm/spinlock.h b/arch/arm/include/asm/spinlock.h
index 4bec45442072..c030143c18c6 100644
--- a/arch/arm/include/asm/spinlock.h
+++ b/arch/arm/include/asm/spinlock.h
@@ -52,22 +52,6 @@ static inline void dsb_sev(void)
* memory.
*/
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- u16 owner = READ_ONCE(lock->tickets.owner);
-
- for (;;) {
- arch_spinlock_t tmp = READ_ONCE(*lock);
-
- if (tmp.tickets.owner == tmp.tickets.next ||
- tmp.tickets.owner != owner)
- break;
-
- wfe();
- }
- smp_acquire__after_ctrl_dep();
-}
-
#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
static inline void arch_spin_lock(arch_spinlock_t *lock)
diff --git a/arch/arm/include/asm/string.h b/arch/arm/include/asm/string.h
index cf4f3aad0fc1..fe1c6af3a1b1 100644
--- a/arch/arm/include/asm/string.h
+++ b/arch/arm/include/asm/string.h
@@ -24,6 +24,20 @@ extern void * memchr(const void *, int, __kernel_size_t);
#define __HAVE_ARCH_MEMSET
extern void * memset(void *, int, __kernel_size_t);
+#define __HAVE_ARCH_MEMSET32
+extern void *__memset32(uint32_t *, uint32_t v, __kernel_size_t);
+static inline void *memset32(uint32_t *p, uint32_t v, __kernel_size_t n)
+{
+ return __memset32(p, v, n * 4);
+}
+
+#define __HAVE_ARCH_MEMSET64
+extern void *__memset64(uint64_t *, uint32_t low, __kernel_size_t, uint32_t hi);
+static inline void *memset64(uint64_t *p, uint64_t v, __kernel_size_t n)
+{
+ return __memset64(p, v, n * 8, v >> 32);
+}
+
extern void __memzero(void *ptr, __kernel_size_t n);
#define memset(p,v,n) \
diff --git a/arch/arm/include/asm/suspend.h b/arch/arm/include/asm/suspend.h
index 6c7182f32cef..a61905c86732 100644
--- a/arch/arm/include/asm/suspend.h
+++ b/arch/arm/include/asm/suspend.h
@@ -1,6 +1,8 @@
#ifndef __ASM_ARM_SUSPEND_H
#define __ASM_ARM_SUSPEND_H
+#include <linux/types.h>
+
struct sleep_save_sp {
u32 *save_ptr_stash;
u32 save_ptr_stash_phys;
diff --git a/arch/arm/include/asm/system_misc.h b/arch/arm/include/asm/system_misc.h
index a3d61ad984af..8c4a89f5ce7d 100644
--- a/arch/arm/include/asm/system_misc.h
+++ b/arch/arm/include/asm/system_misc.h
@@ -22,6 +22,11 @@ extern void (*arm_pm_idle)(void);
extern unsigned int user_debug;
+static inline int handle_guest_sea(phys_addr_t addr, unsigned int esr)
+{
+ return -1;
+}
+
#endif /* !__ASSEMBLY__ */
#endif /* __ASM_ARM_SYSTEM_MISC_H */
diff --git a/arch/arm/include/asm/tlb.h b/arch/arm/include/asm/tlb.h
index 3f2eb76243e3..d5562f9ce600 100644
--- a/arch/arm/include/asm/tlb.h
+++ b/arch/arm/include/asm/tlb.h
@@ -148,7 +148,8 @@ static inline void tlb_flush_mmu(struct mmu_gather *tlb)
}
static inline void
-tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
+arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
+ unsigned long start, unsigned long end)
{
tlb->mm = mm;
tlb->fullmm = !(start | (end+1));
@@ -166,8 +167,14 @@ tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start
}
static inline void
-tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
+arch_tlb_finish_mmu(struct mmu_gather *tlb,
+ unsigned long start, unsigned long end, bool force)
{
+ if (force) {
+ tlb->range_start = start;
+ tlb->range_end = end;
+ }
+
tlb_flush_mmu(tlb);
/* keep the page table cache within bounds */
diff --git a/arch/arm/include/asm/traps.h b/arch/arm/include/asm/traps.h
index f555bb3664dc..683d9230984a 100644
--- a/arch/arm/include/asm/traps.h
+++ b/arch/arm/include/asm/traps.h
@@ -18,7 +18,6 @@ struct undef_hook {
void register_undef_hook(struct undef_hook *hook);
void unregister_undef_hook(struct undef_hook *hook);
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
static inline int __in_irqentry_text(unsigned long ptr)
{
extern char __irqentry_text_start[];
@@ -27,12 +26,6 @@ static inline int __in_irqentry_text(unsigned long ptr)
return ptr >= (unsigned long)&__irqentry_text_start &&
ptr < (unsigned long)&__irqentry_text_end;
}
-#else
-static inline int __in_irqentry_text(unsigned long ptr)
-{
- return 0;
-}
-#endif
static inline int in_exception_text(unsigned long ptr)
{
diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
index 2577405d082d..0bf2347495f1 100644
--- a/arch/arm/include/asm/uaccess.h
+++ b/arch/arm/include/asm/uaccess.h
@@ -17,13 +17,6 @@
#include <asm/unified.h>
#include <asm/compiler.h>
-#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
-#include <asm-generic/uaccess-unaligned.h>
-#else
-#define __get_user_unaligned __get_user
-#define __put_user_unaligned __put_user
-#endif
-
#include <asm/extable.h>
/*
@@ -526,7 +519,6 @@ static inline unsigned long __must_check clear_user(void __user *to, unsigned lo
/* These are from lib/ code, and use __get_user() and friends */
extern long strncpy_from_user(char *dest, const char __user *src, long count);
-extern __must_check long strlen_user(const char __user *str);
extern __must_check long strnlen_user(const char __user *str, long n);
#endif /* _ASMARM_UACCESS_H */
diff --git a/arch/arm/include/asm/ucontext.h b/arch/arm/include/asm/ucontext.h
index 14749aec94bf..921d8274855c 100644
--- a/arch/arm/include/asm/ucontext.h
+++ b/arch/arm/include/asm/ucontext.h
@@ -35,6 +35,12 @@ struct ucontext {
* bytes, to prevent unpredictable padding in the signal frame.
*/
+/*
+ * Dummy padding block: if this magic is encountered, the block should
+ * be skipped using the corresponding size field.
+ */
+#define DUMMY_MAGIC 0xb0d9ed01
+
#ifdef CONFIG_CRUNCH
#define CRUNCH_MAGIC 0x5065cf03
#define CRUNCH_STORAGE_SIZE (CRUNCH_SIZE + 8)
diff --git a/arch/arm/include/asm/xen/events.h b/arch/arm/include/asm/xen/events.h
index 71e473d05fcc..620dc75362e5 100644
--- a/arch/arm/include/asm/xen/events.h
+++ b/arch/arm/include/asm/xen/events.h
@@ -16,7 +16,7 @@ static inline int xen_irqs_disabled(struct pt_regs *regs)
return raw_irqs_disabled_flags(regs->ARM_cpsr);
}
-#define xchg_xen_ulong(ptr, val) atomic64_xchg(container_of((ptr), \
+#define xchg_xen_ulong(ptr, val) atomic64_xchg(container_of((long long*)(ptr),\
atomic64_t, \
counter), (val))
diff --git a/arch/arm/include/debug/omap2plus.S b/arch/arm/include/debug/omap2plus.S
index 6d867aef18eb..192a7583999c 100644
--- a/arch/arm/include/debug/omap2plus.S
+++ b/arch/arm/include/debug/omap2plus.S
@@ -12,43 +12,6 @@
#include <linux/serial_reg.h>
-/* OMAP2 serial ports */
-#define OMAP2_UART1_BASE 0x4806a000
-#define OMAP2_UART2_BASE 0x4806c000
-#define OMAP2_UART3_BASE 0x4806e000
-
-/* OMAP3 serial ports */
-#define OMAP3_UART1_BASE OMAP2_UART1_BASE
-#define OMAP3_UART2_BASE OMAP2_UART2_BASE
-#define OMAP3_UART3_BASE 0x49020000
-#define OMAP3_UART4_BASE 0x49042000 /* Only on 36xx */
-#define OMAP3_UART4_AM35XX_BASE 0x4809E000 /* Only on AM35xx */
-
-/* OMAP4 serial ports */
-#define OMAP4_UART1_BASE OMAP2_UART1_BASE
-#define OMAP4_UART2_BASE OMAP2_UART2_BASE
-#define OMAP4_UART3_BASE 0x48020000
-#define OMAP4_UART4_BASE 0x4806e000
-
-/* TI81XX serial ports */
-#define TI81XX_UART1_BASE 0x48020000
-#define TI81XX_UART2_BASE 0x48022000
-#define TI81XX_UART3_BASE 0x48024000
-
-/* AM3505/3517 UART4 */
-#define AM35XX_UART4_BASE 0x4809E000 /* Only on AM3505/3517 */
-
-/* AM33XX serial port */
-#define AM33XX_UART1_BASE 0x44E09000
-
-/* OMAP5 serial ports */
-#define OMAP5_UART1_BASE OMAP2_UART1_BASE
-#define OMAP5_UART2_BASE OMAP2_UART2_BASE
-#define OMAP5_UART3_BASE OMAP4_UART3_BASE
-#define OMAP5_UART4_BASE OMAP4_UART4_BASE
-#define OMAP5_UART5_BASE 0x48066000
-#define OMAP5_UART6_BASE 0x48068000
-
/* External port on Zoom2/3 */
#define ZOOM_UART_BASE 0x10000000
#define ZOOM_UART_VIRT 0xfa400000
@@ -59,6 +22,7 @@
#define UART_OFFSET(addr) ((addr) & 0x00ffffff)
.pushsection .data
+ .align 2
omap_uart_phys: .word 0
omap_uart_virt: .word 0
omap_uart_lsr: .word 0
@@ -79,55 +43,6 @@ omap_uart_lsr: .word 0
bne 100f @ already configured
/* Configure the UART offset from the phys/virt base */
-#ifdef CONFIG_DEBUG_OMAP2UART1
- mov \rp, #UART_OFFSET(OMAP2_UART1_BASE) @ omap2/3/4
- b 98f
-#endif
-#ifdef CONFIG_DEBUG_OMAP2UART2
- mov \rp, #UART_OFFSET(OMAP2_UART2_BASE) @ omap2/3/4
- b 98f
-#endif
-#ifdef CONFIG_DEBUG_OMAP2UART3
- mov \rp, #UART_OFFSET(OMAP2_UART3_BASE)
- b 98f
-#endif
-#ifdef CONFIG_DEBUG_OMAP3UART3
- mov \rp, #UART_OFFSET(OMAP3_UART1_BASE)
- add \rp, \rp, #0x00fb0000
- add \rp, \rp, #0x00006000 @ OMAP3_UART3_BASE
- b 98f
-#endif
-#ifdef CONFIG_DEBUG_OMAP4UART3
- mov \rp, #UART_OFFSET(OMAP4_UART3_BASE)
- b 98f
-#endif
-#ifdef CONFIG_DEBUG_OMAP3UART4
- mov \rp, #UART_OFFSET(OMAP3_UART1_BASE)
- add \rp, \rp, #0x00fb0000
- add \rp, \rp, #0x00028000 @ OMAP3_UART4_BASE
- b 98f
-#endif
-#ifdef CONFIG_DEBUG_OMAP4UART4
- mov \rp, #UART_OFFSET(OMAP4_UART4_BASE)
- b 98f
-#endif
-#ifdef CONFIG_DEBUG_TI81XXUART1
- mov \rp, #UART_OFFSET(TI81XX_UART1_BASE)
- b 98f
-#endif
-#ifdef CONFIG_DEBUG_TI81XXUART2
- mov \rp, #UART_OFFSET(TI81XX_UART2_BASE)
- b 98f
-#endif
-#ifdef CONFIG_DEBUG_TI81XXUART3
- mov \rp, #UART_OFFSET(TI81XX_UART3_BASE)
- b 98f
-#endif
-#ifdef CONFIG_DEBUG_AM33XXUART1
- ldr \rp, =AM33XX_UART1_BASE
- and \rp, \rp, #0x00ffffff
- b 97f
-#endif
#ifdef CONFIG_DEBUG_ZOOM_UART
ldr \rp, =ZOOM_UART_BASE
str \rp, [\tmp, #0] @ omap_uart_phys
@@ -138,28 +53,6 @@ omap_uart_lsr: .word 0
#endif
b 10b
- /* AM33XX: Store both phys and virt address for the uart */
-97: add \rp, \rp, #0x44000000 @ phys base
- str \rp, [\tmp, #0] @ omap_uart_phys
- sub \rp, \rp, #0x44000000 @ phys base
- add \rp, \rp, #0xf9000000 @ virt base
- str \rp, [\tmp, #4] @ omap_uart_virt
- mov \rp, #(UART_LSR << OMAP_PORT_SHIFT)
- str \rp, [\tmp, #8] @ omap_uart_lsr
-
- b 10b
-
- /* Store both phys and virt address for the uart */
-98: add \rp, \rp, #0x48000000 @ phys base
- str \rp, [\tmp, #0] @ omap_uart_phys
- sub \rp, \rp, #0x48000000 @ phys base
- add \rp, \rp, #0xfa000000 @ virt base
- str \rp, [\tmp, #4] @ omap_uart_virt
- mov \rp, #(UART_LSR << OMAP_PORT_SHIFT)
- str \rp, [\tmp, #8] @ omap_uart_lsr
-
- b 10b
-
.align
99: .word .
.word omap_uart_phys
diff --git a/arch/arm/include/uapi/asm/Kbuild b/arch/arm/include/uapi/asm/Kbuild
index 607f702c2d62..8e17fe80b55b 100644
--- a/arch/arm/include/uapi/asm/Kbuild
+++ b/arch/arm/include/uapi/asm/Kbuild
@@ -1,6 +1,22 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
-genhdr-y += unistd-common.h
-genhdr-y += unistd-oabi.h
-genhdr-y += unistd-eabi.h
+generated-y += unistd-common.h
+generated-y += unistd-oabi.h
+generated-y += unistd-eabi.h
+
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += ioctl.h
+generic-y += ipcbuf.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
+generic-y += siginfo.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += termbits.h
+generic-y += termios.h
diff --git a/arch/arm/include/uapi/asm/kvm.h b/arch/arm/include/uapi/asm/kvm.h
index 5e3c673fa3f4..5db2d4c6a55f 100644
--- a/arch/arm/include/uapi/asm/kvm.h
+++ b/arch/arm/include/uapi/asm/kvm.h
@@ -203,6 +203,14 @@ struct kvm_arch_memory_slot {
#define KVM_DEV_ARM_VGIC_LINE_LEVEL_INTID_MASK 0x3ff
#define VGIC_LEVEL_INFO_LINE_LEVEL 0
+/* Device Control API on vcpu fd */
+#define KVM_ARM_VCPU_PMU_V3_CTRL 0
+#define KVM_ARM_VCPU_PMU_V3_IRQ 0
+#define KVM_ARM_VCPU_PMU_V3_INIT 1
+#define KVM_ARM_VCPU_TIMER_CTRL 1
+#define KVM_ARM_VCPU_TIMER_IRQ_VTIMER 0
+#define KVM_ARM_VCPU_TIMER_IRQ_PTIMER 1
+
#define KVM_DEV_ARM_VGIC_CTRL_INIT 0
#define KVM_DEV_ARM_ITS_SAVE_TABLES 1
#define KVM_DEV_ARM_ITS_RESTORE_TABLES 2
diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
index 8e8d20cdbce7..5266fd9ad6b4 100644
--- a/arch/arm/kernel/armksyms.c
+++ b/arch/arm/kernel/armksyms.c
@@ -87,6 +87,8 @@ EXPORT_SYMBOL(__raw_writesl);
EXPORT_SYMBOL(strchr);
EXPORT_SYMBOL(strrchr);
EXPORT_SYMBOL(memset);
+EXPORT_SYMBOL(__memset32);
+EXPORT_SYMBOL(__memset64);
EXPORT_SYMBOL(memcpy);
EXPORT_SYMBOL(memmove);
EXPORT_SYMBOL(memchr);
diff --git a/arch/arm/kernel/atags_parse.c b/arch/arm/kernel/atags_parse.c
index 68c6ae0b9e4c..98fbfd235ac8 100644
--- a/arch/arm/kernel/atags_parse.c
+++ b/arch/arm/kernel/atags_parse.c
@@ -18,6 +18,7 @@
*/
#include <linux/init.h>
+#include <linux/initrd.h>
#include <linux/kernel.h>
#include <linux/fs.h>
#include <linux/root_dev.h>
@@ -91,8 +92,6 @@ __tagtable(ATAG_VIDEOTEXT, parse_tag_videotext);
#ifdef CONFIG_BLK_DEV_RAM
static int __init parse_tag_ramdisk(const struct tag *tag)
{
- extern int rd_size, rd_image_start, rd_prompt, rd_doload;
-
rd_image_start = tag->u.ramdisk.start;
rd_doload = (tag->u.ramdisk.flags & 1) == 0;
rd_prompt = (tag->u.ramdisk.flags & 2) == 0;
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index b259956365a0..c1809fb549dd 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -458,10 +458,14 @@ static void pcibios_init_hw(struct device *parent, struct hw_pci *hw,
int nr, busnr;
for (nr = busnr = 0; nr < hw->nr_controllers; nr++) {
- sys = kzalloc(sizeof(struct pci_sys_data), GFP_KERNEL);
- if (WARN(!sys, "PCI: unable to allocate sys data!"))
+ struct pci_host_bridge *bridge;
+
+ bridge = pci_alloc_host_bridge(sizeof(struct pci_sys_data));
+ if (WARN(!bridge, "PCI: unable to allocate bridge!"))
break;
+ sys = pci_host_bridge_priv(bridge);
+
sys->busnr = busnr;
sys->swizzle = hw->swizzle;
sys->map_irq = hw->map_irq;
@@ -473,34 +477,44 @@ static void pcibios_init_hw(struct device *parent, struct hw_pci *hw,
ret = hw->setup(nr, sys);
if (ret > 0) {
- struct pci_host_bridge *host_bridge;
ret = pcibios_init_resource(nr, sys, hw->io_optional);
if (ret) {
- kfree(sys);
+ pci_free_host_bridge(bridge);
break;
}
+ bridge->map_irq = pcibios_map_irq;
+ bridge->swizzle_irq = pcibios_swizzle;
+
if (hw->scan)
- sys->bus = hw->scan(nr, sys);
- else
- sys->bus = pci_scan_root_bus_msi(parent,
- sys->busnr, hw->ops, sys,
- &sys->resources, hw->msi_ctrl);
-
- if (WARN(!sys->bus, "PCI: unable to scan bus!")) {
- kfree(sys);
+ ret = hw->scan(nr, bridge);
+ else {
+ list_splice_init(&sys->resources,
+ &bridge->windows);
+ bridge->dev.parent = parent;
+ bridge->sysdata = sys;
+ bridge->busnr = sys->busnr;
+ bridge->ops = hw->ops;
+ bridge->msi = hw->msi_ctrl;
+ bridge->align_resource =
+ hw->align_resource;
+
+ ret = pci_scan_root_bus_bridge(bridge);
+ }
+
+ if (WARN(ret < 0, "PCI: unable to scan bus!")) {
+ pci_free_host_bridge(bridge);
break;
}
+ sys->bus = bridge->bus;
+
busnr = sys->bus->busn_res.end + 1;
list_add(&sys->node, head);
-
- host_bridge = pci_find_host_bridge(sys->bus);
- host_bridge->align_resource = hw->align_resource;
} else {
- kfree(sys);
+ pci_free_host_bridge(bridge);
if (ret < 0)
break;
}
@@ -519,8 +533,6 @@ void pci_common_init_dev(struct device *parent, struct hw_pci *hw)
if (hw->postinit)
hw->postinit();
- pci_fixup_irqs(pcibios_swizzle, pcibios_map_irq);
-
list_for_each_entry(sys, &head, node) {
struct pci_bus *bus = sys->bus;
diff --git a/arch/arm/kernel/cpuidle.c b/arch/arm/kernel/cpuidle.c
index a3308ad1a024..fda5579123a8 100644
--- a/arch/arm/kernel/cpuidle.c
+++ b/arch/arm/kernel/cpuidle.c
@@ -101,8 +101,8 @@ static int __init arm_cpuidle_read_ops(struct device_node *dn, int cpu)
ops = arm_cpuidle_get_ops(enable_method);
if (!ops) {
- pr_warn("%s: unsupported enable-method property: %s\n",
- dn->full_name, enable_method);
+ pr_warn("%pOF: unsupported enable-method property: %s\n",
+ dn, enable_method);
return -EOPNOTSUPP;
}
diff --git a/arch/arm/kernel/debug.S b/arch/arm/kernel/debug.S
index ea9646cc2a0e..0a498cb3fad8 100644
--- a/arch/arm/kernel/debug.S
+++ b/arch/arm/kernel/debug.S
@@ -115,7 +115,11 @@ ENTRY(printascii)
mov r1, r0
mov r0, #0x04 @ SYS_WRITE0
ARM( svc #0x123456 )
+#ifdef CONFIG_CPU_V7M
+ THUMB( bkpt #0xab )
+#else
THUMB( svc #0xab )
+#endif
ret lr
ENDPROC(printascii)
@@ -124,7 +128,11 @@ ENTRY(printch)
strb r0, [r1]
mov r0, #0x03 @ SYS_WRITEC
ARM( svc #0x123456 )
+#ifdef CONFIG_CPU_V7M
+ THUMB( bkpt #0xab )
+#else
THUMB( svc #0xab )
+#endif
ret lr
ENDPROC(printch)
diff --git a/arch/arm/kernel/devtree.c b/arch/arm/kernel/devtree.c
index f676febbb270..ecaa68dd1af5 100644
--- a/arch/arm/kernel/devtree.c
+++ b/arch/arm/kernel/devtree.c
@@ -95,7 +95,7 @@ void __init arm_dt_init_cpu_maps(void)
if (of_node_cmp(cpu->type, "cpu"))
continue;
- pr_debug(" * %s...\n", cpu->full_name);
+ pr_debug(" * %pOF...\n", cpu);
/*
* A device tree containing CPU nodes with missing "reg"
* properties is considered invalid to build the
@@ -103,8 +103,7 @@ void __init arm_dt_init_cpu_maps(void)
*/
cell = of_get_property(cpu, "reg", &prop_bytes);
if (!cell || prop_bytes < sizeof(*cell)) {
- pr_debug(" * %s missing reg property\n",
- cpu->full_name);
+ pr_debug(" * %pOF missing reg property\n", cpu);
of_node_put(cpu);
return;
}
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 9f157e7c51e7..fbc707626b3e 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -721,6 +721,7 @@ do_fpe:
*/
.pushsection .data
+ .align 2
ENTRY(fp_enter)
.word no_fp
.popsection
@@ -797,7 +798,10 @@ ENTRY(__switch_to)
#if defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_SMP)
ldr r7, [r2, #TI_TASK]
ldr r8, =__stack_chk_guard
- ldr r7, [r7, #TSK_STACK_CANARY]
+ .if (TSK_STACK_CANARY > IMM12_MASK)
+ add r7, r7, #TSK_STACK_CANARY & ~IMM12_MASK
+ .endif
+ ldr r7, [r7, #TSK_STACK_CANARY & IMM12_MASK]
#endif
#ifdef CONFIG_CPU_USE_DOMAINS
mcr p15, 0, r6, c3, c0, 0 @ Set domain register
@@ -1221,6 +1225,7 @@ vector_addrexcptn:
W(b) vector_fiq
.data
+ .align 2
.globl cr_alignment
cr_alignment:
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index eb5cd77bf1d8..99c908226065 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -12,6 +12,7 @@
#include <asm/unistd.h>
#include <asm/ftrace.h>
#include <asm/unwind.h>
+#include <asm/memory.h>
#ifdef CONFIG_AEABI
#include <asm/unistd-oabi.h>
#endif
@@ -27,6 +28,14 @@
#include "entry-header.S"
+saved_psr .req r8
+#if defined(CONFIG_TRACE_IRQFLAGS) || defined(CONFIG_CONTEXT_TRACKING)
+saved_pc .req r9
+#define TRACE(x...) x
+#else
+saved_pc .req lr
+#define TRACE(x...)
+#endif
.align 5
#if !(IS_ENABLED(CONFIG_TRACE_IRQFLAGS) || IS_ENABLED(CONFIG_CONTEXT_TRACKING))
@@ -40,10 +49,14 @@ ret_fast_syscall:
UNWIND(.fnstart )
UNWIND(.cantunwind )
disable_irq_notrace @ disable interrupts
+ ldr r2, [tsk, #TI_ADDR_LIMIT]
+ cmp r2, #TASK_SIZE
+ blne addr_limit_check_failed
ldr r1, [tsk, #TI_FLAGS] @ re-check for syscall tracing
tst r1, #_TIF_SYSCALL_WORK | _TIF_WORK_MASK
bne fast_work_pending
+
/* perform architecture specific actions before user return */
arch_ret_to_user r1, lr
@@ -66,6 +79,9 @@ ret_fast_syscall:
UNWIND(.cantunwind )
str r0, [sp, #S_R0 + S_OFF]! @ save returned r0
disable_irq_notrace @ disable interrupts
+ ldr r2, [tsk, #TI_ADDR_LIMIT]
+ cmp r2, #TASK_SIZE
+ blne addr_limit_check_failed
ldr r1, [tsk, #TI_FLAGS] @ re-check for syscall tracing
tst r1, #_TIF_SYSCALL_WORK | _TIF_WORK_MASK
beq no_work_pending
@@ -98,6 +114,9 @@ ENTRY(ret_to_user)
ret_slow_syscall:
disable_irq_notrace @ disable interrupts
ENTRY(ret_to_user_from_irq)
+ ldr r2, [tsk, #TI_ADDR_LIMIT]
+ cmp r2, #TASK_SIZE
+ blne addr_limit_check_failed
ldr r1, [tsk, #TI_FLAGS]
tst r1, #_TIF_WORK_MASK
bne slow_work_pending
@@ -141,16 +160,17 @@ ENTRY(vector_swi)
ARM( stmdb r8, {sp, lr}^ ) @ Calling sp, lr
THUMB( mov r8, sp )
THUMB( store_user_sp_lr r8, r10, S_SP ) @ calling sp, lr
- mrs r8, spsr @ called from non-FIQ mode, so ok.
- str lr, [sp, #S_PC] @ Save calling PC
- str r8, [sp, #S_PSR] @ Save CPSR
+ mrs saved_psr, spsr @ called from non-FIQ mode, so ok.
+ TRACE( mov saved_pc, lr )
+ str saved_pc, [sp, #S_PC] @ Save calling PC
+ str saved_psr, [sp, #S_PSR] @ Save CPSR
str r0, [sp, #S_OLD_R0] @ Save OLD_R0
#endif
zero_fp
alignment_trap r10, ip, __cr_alignment
- enable_irq
- ct_user_exit
- get_thread_info tsk
+ asm_trace_hardirqs_on save=0
+ enable_irq_notrace
+ ct_user_exit save=0
/*
* Get the system call number.
@@ -163,11 +183,11 @@ ENTRY(vector_swi)
* value to determine if it is an EABI or an old ABI call.
*/
#ifdef CONFIG_ARM_THUMB
- tst r8, #PSR_T_BIT
+ tst saved_psr, #PSR_T_BIT
movne r10, #0 @ no thumb OABI emulation
- USER( ldreq r10, [lr, #-4] ) @ get SWI instruction
+ USER( ldreq r10, [saved_pc, #-4] ) @ get SWI instruction
#else
- USER( ldr r10, [lr, #-4] ) @ get SWI instruction
+ USER( ldr r10, [saved_pc, #-4] ) @ get SWI instruction
#endif
ARM_BE8(rev r10, r10) @ little endian instruction
@@ -178,15 +198,17 @@ ENTRY(vector_swi)
*/
#elif defined(CONFIG_ARM_THUMB)
/* Legacy ABI only, possibly thumb mode. */
- tst r8, #PSR_T_BIT @ this is SPSR from save_user_regs
+ tst saved_psr, #PSR_T_BIT @ this is SPSR from save_user_regs
addne scno, r7, #__NR_SYSCALL_BASE @ put OS number in
- USER( ldreq scno, [lr, #-4] )
+ USER( ldreq scno, [saved_pc, #-4] )
#else
/* Legacy ABI only. */
- USER( ldr scno, [lr, #-4] ) @ get SWI instruction
+ USER( ldr scno, [saved_pc, #-4] ) @ get SWI instruction
#endif
+ /* saved_psr and saved_pc are now dead */
+
uaccess_disable tbl
adr tbl, sys_call_table @ load syscall table pointer
@@ -205,6 +227,12 @@ ENTRY(vector_swi)
bic scno, scno, #0xff000000 @ mask off SWI op-code
eor scno, scno, #__NR_SYSCALL_BASE @ check OS number
#endif
+ get_thread_info tsk
+ /*
+ * Reload the registers that may have been corrupted on entry to
+ * the syscall assembly (by tracing or context tracking.)
+ */
+ TRACE( ldmia sp, {r0 - r3} )
local_restart:
ldr r10, [tsk, #TI_FLAGS] @ check for syscall tracing
@@ -234,8 +262,9 @@ local_restart:
* current task.
*/
9001:
- sub lr, lr, #4
+ sub lr, saved_pc, #4
str lr, [sp, #S_PC]
+ get_thread_info tsk
b ret_fast_syscall
#endif
ENDPROC(vector_swi)
diff --git a/arch/arm/kernel/entry-ftrace.S b/arch/arm/kernel/entry-ftrace.S
index c73c4030ca5d..efcd9f25a14b 100644
--- a/arch/arm/kernel/entry-ftrace.S
+++ b/arch/arm/kernel/entry-ftrace.S
@@ -92,12 +92,95 @@
2: mcount_exit
.endm
+#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
+
+.macro __ftrace_regs_caller
+
+ sub sp, sp, #8 @ space for PC and CPSR OLD_R0,
+ @ OLD_R0 will overwrite previous LR
+
+ add ip, sp, #12 @ move in IP the value of SP as it was
+ @ before the push {lr} of the mcount mechanism
+
+ str lr, [sp, #0] @ store LR instead of PC
+
+ ldr lr, [sp, #8] @ get previous LR
+
+ str r0, [sp, #8] @ write r0 as OLD_R0 over previous LR
+
+ stmdb sp!, {ip, lr}
+ stmdb sp!, {r0-r11, lr}
+
+ @ stack content at this point:
+ @ 0 4 48 52 56 60 64 68 72
+ @ R0 | R1 | ... | LR | SP + 4 | previous LR | LR | PSR | OLD_R0 |
+
+ mov r3, sp @ struct pt_regs*
+
+ ldr r2, =function_trace_op
+ ldr r2, [r2] @ pointer to the current
+ @ function tracing op
+
+ ldr r1, [sp, #S_LR] @ lr of instrumented func
+
+ ldr lr, [sp, #S_PC] @ get LR
+
+ mcount_adjust_addr r0, lr @ instrumented function
+
+ .globl ftrace_regs_call
+ftrace_regs_call:
+ bl ftrace_stub
+
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ .globl ftrace_graph_regs_call
+ftrace_graph_regs_call:
+ mov r0, r0
+#endif
+
+ @ pop saved regs
+ ldmia sp!, {r0-r12} @ restore r0 through r12
+ ldr ip, [sp, #8] @ restore PC
+ ldr lr, [sp, #4] @ restore LR
+ ldr sp, [sp, #0] @ restore SP
+ mov pc, ip @ return
+.endm
+
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+.macro __ftrace_graph_regs_caller
+
+ sub r0, fp, #4 @ lr of instrumented routine (parent)
+
+ @ called from __ftrace_regs_caller
+ ldr r1, [sp, #S_PC] @ instrumented routine (func)
+ mcount_adjust_addr r1, r1
+
+ mov r2, fp @ frame pointer
+ bl prepare_ftrace_return
+
+ @ pop registers saved in ftrace_regs_caller
+ ldmia sp!, {r0-r12} @ restore r0 through r12
+ ldr ip, [sp, #8] @ restore PC
+ ldr lr, [sp, #4] @ restore LR
+ ldr sp, [sp, #0] @ restore SP
+ mov pc, ip @ return
+
+.endm
+#endif
+#endif
+
.macro __ftrace_caller suffix
mcount_enter
mcount_get_lr r1 @ lr of instrumented func
mcount_adjust_addr r0, lr @ instrumented function
+#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
+ ldr r2, =function_trace_op
+ ldr r2, [r2] @ pointer to the current
+ @ function tracing op
+ mov r3, #0 @ regs is NULL
+#endif
+
.globl ftrace_call\suffix
ftrace_call\suffix:
bl ftrace_stub
@@ -212,6 +295,15 @@ UNWIND(.fnstart)
__ftrace_caller
UNWIND(.fnend)
ENDPROC(ftrace_caller)
+
+#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
+ENTRY(ftrace_regs_caller)
+UNWIND(.fnstart)
+ __ftrace_regs_caller
+UNWIND(.fnend)
+ENDPROC(ftrace_regs_caller)
+#endif
+
#endif
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
@@ -220,6 +312,14 @@ UNWIND(.fnstart)
__ftrace_graph_caller
UNWIND(.fnend)
ENDPROC(ftrace_graph_caller)
+
+#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
+ENTRY(ftrace_graph_regs_caller)
+UNWIND(.fnstart)
+ __ftrace_graph_regs_caller
+UNWIND(.fnend)
+ENDPROC(ftrace_graph_regs_caller)
+#endif
#endif
.purgem mcount_enter
diff --git a/arch/arm/kernel/ftrace.c b/arch/arm/kernel/ftrace.c
index 833c991075a1..5617932a83df 100644
--- a/arch/arm/kernel/ftrace.c
+++ b/arch/arm/kernel/ftrace.c
@@ -141,6 +141,15 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
ret = ftrace_modify_code(pc, 0, new, false);
+#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
+ if (!ret) {
+ pc = (unsigned long)&ftrace_regs_call;
+ new = ftrace_call_replace(pc, (unsigned long)func);
+
+ ret = ftrace_modify_code(pc, 0, new, false);
+ }
+#endif
+
#ifdef CONFIG_OLD_MCOUNT
if (!ret) {
pc = (unsigned long)&ftrace_call_old;
@@ -159,11 +168,29 @@ int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
unsigned long ip = rec->ip;
old = ftrace_nop_replace(rec);
+
+ new = ftrace_call_replace(ip, adjust_address(rec, addr));
+
+ return ftrace_modify_code(rec->ip, old, new, true);
+}
+
+#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
+
+int ftrace_modify_call(struct dyn_ftrace *rec, unsigned long old_addr,
+ unsigned long addr)
+{
+ unsigned long new, old;
+ unsigned long ip = rec->ip;
+
+ old = ftrace_call_replace(ip, adjust_address(rec, old_addr));
+
new = ftrace_call_replace(ip, adjust_address(rec, addr));
return ftrace_modify_code(rec->ip, old, new, true);
}
+#endif
+
int ftrace_make_nop(struct module *mod,
struct dyn_ftrace *rec, unsigned long addr)
{
@@ -231,6 +258,8 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
extern unsigned long ftrace_graph_call;
extern unsigned long ftrace_graph_call_old;
extern void ftrace_graph_caller_old(void);
+extern unsigned long ftrace_graph_regs_call;
+extern void ftrace_graph_regs_caller(void);
static int __ftrace_modify_caller(unsigned long *callsite,
void (*func) (void), bool enable)
@@ -253,6 +282,14 @@ static int ftrace_modify_graph_caller(bool enable)
ftrace_graph_caller,
enable);
+#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
+ if (!ret)
+ ret = __ftrace_modify_caller(&ftrace_graph_regs_call,
+ ftrace_graph_regs_caller,
+ enable);
+#endif
+
+
#ifdef CONFIG_OLD_MCOUNT
if (!ret)
ret = __ftrace_modify_caller(&ftrace_graph_call_old,
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 04286fd9e09c..6b1148cafffd 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -556,6 +556,7 @@ ENDPROC(__fixup_smp)
.word __smpalt_end
.pushsection .data
+ .align 2
.globl smp_on_up
smp_on_up:
ALT_SMP(.long 1)
@@ -716,6 +717,7 @@ ENTRY(fixup_pv_table)
ENDPROC(fixup_pv_table)
.data
+ .align 2
.globl __pv_phys_pfn_offset
.type __pv_phys_pfn_offset, %object
__pv_phys_pfn_offset:
diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c
index be3b3fbd382f..af2a7f1e3103 100644
--- a/arch/arm/kernel/hw_breakpoint.c
+++ b/arch/arm/kernel/hw_breakpoint.c
@@ -1090,7 +1090,7 @@ static int __init arch_hw_breakpoint_init(void)
* driven low on this core and there isn't an architected way to
* determine that.
*/
- get_online_cpus();
+ cpus_read_lock();
register_undef_hook(&debug_reg_hook);
/*
@@ -1098,15 +1098,16 @@ static int __init arch_hw_breakpoint_init(void)
* assume that a halting debugger will leave the world in a nice state
* for us.
*/
- ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "arm/hw_breakpoint:online",
- dbg_reset_online, NULL);
+ ret = cpuhp_setup_state_cpuslocked(CPUHP_AP_ONLINE_DYN,
+ "arm/hw_breakpoint:online",
+ dbg_reset_online, NULL);
unregister_undef_hook(&debug_reg_hook);
if (WARN_ON(ret < 0) || !cpumask_empty(&debug_err_mask)) {
core_num_brps = 0;
core_num_wrps = 0;
if (ret > 0)
- cpuhp_remove_state_nocalls(ret);
- put_online_cpus();
+ cpuhp_remove_state_nocalls_cpuslocked(ret);
+ cpus_read_unlock();
return 0;
}
@@ -1124,7 +1125,7 @@ static int __init arch_hw_breakpoint_init(void)
TRAP_HWBKPT, "watchpoint debug exception");
hook_ifault_code(FAULT_CODE_DEBUG, hw_breakpoint_pending, SIGTRAP,
TRAP_HWBKPT, "breakpoint debug exception");
- put_online_cpus();
+ cpus_read_unlock();
/* Register PM notifiers. */
pm_init();
diff --git a/arch/arm/kernel/hyp-stub.S b/arch/arm/kernel/hyp-stub.S
index ec7e7377d423..60146e32619a 100644
--- a/arch/arm/kernel/hyp-stub.S
+++ b/arch/arm/kernel/hyp-stub.S
@@ -31,6 +31,7 @@
* zeroing of .bss would clobber it.
*/
.data
+ .align 2
ENTRY(__boot_cpu_mode)
.long 0
.text
diff --git a/arch/arm/kernel/iwmmxt.S b/arch/arm/kernel/iwmmxt.S
index 49fadbda8c63..81cd4d43b3ec 100644
--- a/arch/arm/kernel/iwmmxt.S
+++ b/arch/arm/kernel/iwmmxt.S
@@ -367,6 +367,7 @@ ENTRY(iwmmxt_task_release)
ENDPROC(iwmmxt_task_release)
.data
+ .align 2
concan_owner:
.word 0
diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c
index 15495887ca14..fe1419eeb932 100644
--- a/arch/arm/kernel/machine_kexec.c
+++ b/arch/arm/kernel/machine_kexec.c
@@ -30,7 +30,6 @@ extern unsigned long kexec_boot_atags;
static atomic_t waiting_for_crash_ipi;
-static unsigned long dt_mem;
/*
* Provide a dummy crash_notes definition while crash dump arrives to arm.
* This prevents breakage of crash_notes attribute in kernel/ksysfs.c.
@@ -42,6 +41,9 @@ int machine_kexec_prepare(struct kimage *image)
__be32 header;
int i, err;
+ image->arch.kernel_r2 = image->start - KEXEC_ARM_ZIMAGE_OFFSET
+ + KEXEC_ARM_ATAGS_OFFSET;
+
/*
* Validate that if the current HW supports SMP, then the SW supports
* and implements CPU hotplug for the current HW. If not, we won't be
@@ -66,8 +68,8 @@ int machine_kexec_prepare(struct kimage *image)
if (err)
return err;
- if (be32_to_cpu(header) == OF_DT_HEADER)
- dt_mem = current_segment->mem;
+ if (header == cpu_to_be32(OF_DT_HEADER))
+ image->arch.kernel_r2 = current_segment->mem;
}
return 0;
}
@@ -165,8 +167,7 @@ void machine_kexec(struct kimage *image)
kexec_start_address = image->start;
kexec_indirection_page = page_list;
kexec_mach_type = machine_arch_type;
- kexec_boot_atags = dt_mem ?: image->start - KEXEC_ARM_ZIMAGE_OFFSET
- + KEXEC_ARM_ATAGS_OFFSET;
+ kexec_boot_atags = image->arch.kernel_r2;
/* copy our kernel relocation code to the control code page */
reboot_entry = fncpy(reboot_code_buffer,
diff --git a/arch/arm/kernel/patch.c b/arch/arm/kernel/patch.c
index 020560b2dcb7..a1a34722c655 100644
--- a/arch/arm/kernel/patch.c
+++ b/arch/arm/kernel/patch.c
@@ -124,5 +124,5 @@ void __kprobes patch_text(void *addr, unsigned int insn)
.insn = insn,
};
- stop_machine(patch_text_stop_machine, &patch, NULL);
+ stop_machine_cpuslocked(patch_text_stop_machine, &patch, NULL);
}
diff --git a/arch/arm/kernel/perf_event_v6.c b/arch/arm/kernel/perf_event_v6.c
index 96b7a477a8db..8226d0b71fd3 100644
--- a/arch/arm/kernel/perf_event_v6.c
+++ b/arch/arm/kernel/perf_event_v6.c
@@ -552,7 +552,7 @@ static int armv6mpcore_pmu_init(struct arm_pmu *cpu_pmu)
return 0;
}
-static struct of_device_id armv6_pmu_of_device_ids[] = {
+static const struct of_device_id armv6_pmu_of_device_ids[] = {
{.compatible = "arm,arm11mpcore-pmu", .data = armv6mpcore_pmu_init},
{.compatible = "arm,arm1176-pmu", .data = armv6_1176_pmu_init},
{.compatible = "arm,arm1136-pmu", .data = armv6_1136_pmu_init},
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 939e8b58c59d..d96714e1858c 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -123,10 +123,10 @@ void __show_regs(struct pt_regs *regs)
print_symbol("PC is at %s\n", instruction_pointer(regs));
print_symbol("LR is at %s\n", regs->ARM_lr);
- printk("pc : [<%08lx>] lr : [<%08lx>] psr: %08lx\n"
- "sp : %08lx ip : %08lx fp : %08lx\n",
- regs->ARM_pc, regs->ARM_lr, regs->ARM_cpsr,
- regs->ARM_sp, regs->ARM_ip, regs->ARM_fp);
+ printk("pc : [<%08lx>] lr : [<%08lx>] psr: %08lx\n",
+ regs->ARM_pc, regs->ARM_lr, regs->ARM_cpsr);
+ printk("sp : %08lx ip : %08lx fp : %08lx\n",
+ regs->ARM_sp, regs->ARM_ip, regs->ARM_fp);
printk("r10: %08lx r9 : %08lx r8 : %08lx\n",
regs->ARM_r10, regs->ARM_r9,
regs->ARM_r8);
@@ -404,9 +404,17 @@ static unsigned long sigpage_addr(const struct mm_struct *mm,
static struct page *signal_page;
extern struct page *get_signal_page(void);
+static int sigpage_mremap(const struct vm_special_mapping *sm,
+ struct vm_area_struct *new_vma)
+{
+ current->mm->context.sigpage = new_vma->vm_start;
+ return 0;
+}
+
static const struct vm_special_mapping sigpage_mapping = {
.name = "[sigpage]",
.pages = &signal_page,
+ .mremap = sigpage_mremap,
};
int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 4e80bf7420d4..8e9a3e40d949 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -987,6 +987,9 @@ static void __init reserve_crashkernel(void)
if (crash_base <= 0) {
unsigned long long crash_max = idmap_to_phys((u32)~0);
+ unsigned long long lowmem_max = __pa(high_memory - 1) + 1;
+ if (crash_max > lowmem_max)
+ crash_max = lowmem_max;
crash_base = memblock_find_in_range(CRASH_ALIGN, crash_max,
crash_size, CRASH_ALIGN);
if (!crash_base) {
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 7b8f2141427b..b67ae12503f3 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -14,6 +14,7 @@
#include <linux/uaccess.h>
#include <linux/tracehook.h>
#include <linux/uprobes.h>
+#include <linux/syscalls.h>
#include <asm/elf.h>
#include <asm/cacheflush.h>
@@ -40,8 +41,10 @@ static int preserve_crunch_context(struct crunch_sigframe __user *frame)
return __copy_to_user(frame, kframe, sizeof(*frame));
}
-static int restore_crunch_context(struct crunch_sigframe __user *frame)
+static int restore_crunch_context(char __user **auxp)
{
+ struct crunch_sigframe __user *frame =
+ (struct crunch_sigframe __user *)*auxp;
char kbuf[sizeof(*frame) + 8];
struct crunch_sigframe *kframe;
@@ -52,6 +55,7 @@ static int restore_crunch_context(struct crunch_sigframe __user *frame)
if (kframe->magic != CRUNCH_MAGIC ||
kframe->size != CRUNCH_STORAGE_SIZE)
return -1;
+ *auxp += CRUNCH_STORAGE_SIZE;
crunch_task_restore(current_thread_info(), &kframe->storage);
return 0;
}
@@ -59,21 +63,39 @@ static int restore_crunch_context(struct crunch_sigframe __user *frame)
#ifdef CONFIG_IWMMXT
-static int preserve_iwmmxt_context(struct iwmmxt_sigframe *frame)
+static int preserve_iwmmxt_context(struct iwmmxt_sigframe __user *frame)
{
char kbuf[sizeof(*frame) + 8];
struct iwmmxt_sigframe *kframe;
+ int err = 0;
/* the iWMMXt context must be 64 bit aligned */
kframe = (struct iwmmxt_sigframe *)((unsigned long)(kbuf + 8) & ~7);
- kframe->magic = IWMMXT_MAGIC;
- kframe->size = IWMMXT_STORAGE_SIZE;
- iwmmxt_task_copy(current_thread_info(), &kframe->storage);
- return __copy_to_user(frame, kframe, sizeof(*frame));
+
+ if (test_thread_flag(TIF_USING_IWMMXT)) {
+ kframe->magic = IWMMXT_MAGIC;
+ kframe->size = IWMMXT_STORAGE_SIZE;
+ iwmmxt_task_copy(current_thread_info(), &kframe->storage);
+
+ err = __copy_to_user(frame, kframe, sizeof(*frame));
+ } else {
+ /*
+ * For bug-compatibility with older kernels, some space
+ * has to be reserved for iWMMXt even if it's not used.
+ * Set the magic and size appropriately so that properly
+ * written userspace can skip it reliably:
+ */
+ __put_user_error(DUMMY_MAGIC, &frame->magic, err);
+ __put_user_error(IWMMXT_STORAGE_SIZE, &frame->size, err);
+ }
+
+ return err;
}
-static int restore_iwmmxt_context(struct iwmmxt_sigframe *frame)
+static int restore_iwmmxt_context(char __user **auxp)
{
+ struct iwmmxt_sigframe __user *frame =
+ (struct iwmmxt_sigframe __user *)*auxp;
char kbuf[sizeof(*frame) + 8];
struct iwmmxt_sigframe *kframe;
@@ -81,10 +103,28 @@ static int restore_iwmmxt_context(struct iwmmxt_sigframe *frame)
kframe = (struct iwmmxt_sigframe *)((unsigned long)(kbuf + 8) & ~7);
if (__copy_from_user(kframe, frame, sizeof(*frame)))
return -1;
- if (kframe->magic != IWMMXT_MAGIC ||
- kframe->size != IWMMXT_STORAGE_SIZE)
+
+ /*
+ * For non-iWMMXt threads: a single iwmmxt_sigframe-sized dummy
+ * block is discarded for compatibility with setup_sigframe() if
+ * present, but we don't mandate its presence. If some other
+ * magic is here, it's not for us:
+ */
+ if (!test_thread_flag(TIF_USING_IWMMXT) &&
+ kframe->magic != DUMMY_MAGIC)
+ return 0;
+
+ if (kframe->size != IWMMXT_STORAGE_SIZE)
return -1;
- iwmmxt_task_restore(current_thread_info(), &kframe->storage);
+
+ if (test_thread_flag(TIF_USING_IWMMXT)) {
+ if (kframe->magic != IWMMXT_MAGIC)
+ return -1;
+
+ iwmmxt_task_restore(current_thread_info(), &kframe->storage);
+ }
+
+ *auxp += IWMMXT_STORAGE_SIZE;
return 0;
}
@@ -107,8 +147,10 @@ static int preserve_vfp_context(struct vfp_sigframe __user *frame)
return vfp_preserve_user_clear_hwstate(&frame->ufp, &frame->ufp_exc);
}
-static int restore_vfp_context(struct vfp_sigframe __user *frame)
+static int restore_vfp_context(char __user **auxp)
{
+ struct vfp_sigframe __user *frame =
+ (struct vfp_sigframe __user *)*auxp;
unsigned long magic;
unsigned long size;
int err = 0;
@@ -121,6 +163,7 @@ static int restore_vfp_context(struct vfp_sigframe __user *frame)
if (magic != VFP_MAGIC || size != VFP_STORAGE_SIZE)
return -EINVAL;
+ *auxp += size;
return vfp_restore_user_hwstate(&frame->ufp, &frame->ufp_exc);
}
@@ -141,7 +184,7 @@ struct rt_sigframe {
static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf)
{
- struct aux_sigframe __user *aux;
+ char __user *aux;
sigset_t set;
int err;
@@ -169,18 +212,18 @@ static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf)
err |= !valid_user_regs(regs);
- aux = (struct aux_sigframe __user *) sf->uc.uc_regspace;
+ aux = (char __user *) sf->uc.uc_regspace;
#ifdef CONFIG_CRUNCH
if (err == 0)
- err |= restore_crunch_context(&aux->crunch);
+ err |= restore_crunch_context(&aux);
#endif
#ifdef CONFIG_IWMMXT
- if (err == 0 && test_thread_flag(TIF_USING_IWMMXT))
- err |= restore_iwmmxt_context(&aux->iwmmxt);
+ if (err == 0)
+ err |= restore_iwmmxt_context(&aux);
#endif
#ifdef CONFIG_VFP
if (err == 0)
- err |= restore_vfp_context(&aux->vfp);
+ err |= restore_vfp_context(&aux);
#endif
return err;
@@ -286,7 +329,7 @@ setup_sigframe(struct sigframe __user *sf, struct pt_regs *regs, sigset_t *set)
err |= preserve_crunch_context(&aux->crunch);
#endif
#ifdef CONFIG_IWMMXT
- if (err == 0 && test_thread_flag(TIF_USING_IWMMXT))
+ if (err == 0)
err |= preserve_iwmmxt_context(&aux->iwmmxt);
#endif
#ifdef CONFIG_VFP
@@ -631,3 +674,9 @@ struct page *get_signal_page(void)
return page;
}
+
+/* Defer to generic check */
+asmlinkage void addr_limit_check_failed(void)
+{
+ addr_limit_user_check();
+}
diff --git a/arch/arm/kernel/sleep.S b/arch/arm/kernel/sleep.S
index 0f6c1000582c..9f08d214d05a 100644
--- a/arch/arm/kernel/sleep.S
+++ b/arch/arm/kernel/sleep.S
@@ -171,6 +171,7 @@ mpidr_hash_ptr:
.long mpidr_hash - . @ mpidr_hash struct offset
.data
+ .align 2
.type sleep_save_sp, #object
ENTRY(sleep_save_sp)
.space SLEEP_SAVE_SP_SZ @ struct sleep_save_sp
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 572a8df1b766..c9a0a5299827 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -555,8 +555,7 @@ static DEFINE_RAW_SPINLOCK(stop_lock);
*/
static void ipi_cpu_stop(unsigned int cpu)
{
- if (system_state == SYSTEM_BOOTING ||
- system_state == SYSTEM_RUNNING) {
+ if (system_state <= SYSTEM_RUNNING) {
raw_spin_lock(&stop_lock);
pr_crit("CPU%u: stopping\n", cpu);
dump_stack();
diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c
index 895ae5197159..b30eafeef096 100644
--- a/arch/arm/kernel/smp_twd.c
+++ b/arch/arm/kernel/smp_twd.c
@@ -403,7 +403,7 @@ out:
WARN(err, "twd_local_timer_of_register failed (%d)\n", err);
return err;
}
-CLOCKSOURCE_OF_DECLARE(arm_twd_a9, "arm,cortex-a9-twd-timer", twd_local_timer_of_register);
-CLOCKSOURCE_OF_DECLARE(arm_twd_a5, "arm,cortex-a5-twd-timer", twd_local_timer_of_register);
-CLOCKSOURCE_OF_DECLARE(arm_twd_11mp, "arm,arm11mp-twd-timer", twd_local_timer_of_register);
+TIMER_OF_DECLARE(arm_twd_a9, "arm,cortex-a9-twd-timer", twd_local_timer_of_register);
+TIMER_OF_DECLARE(arm_twd_a5, "arm,cortex-a5-twd-timer", twd_local_timer_of_register);
+TIMER_OF_DECLARE(arm_twd_11mp, "arm,arm11mp-twd-timer", twd_local_timer_of_register);
#endif
diff --git a/arch/arm/kernel/stacktrace.c b/arch/arm/kernel/stacktrace.c
index 3a2fa203637a..65228bf4c6df 100644
--- a/arch/arm/kernel/stacktrace.c
+++ b/arch/arm/kernel/stacktrace.c
@@ -171,6 +171,7 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
{
__save_stack_trace(tsk, trace, 1);
}
+EXPORT_SYMBOL(save_stack_trace_tsk);
void save_stack_trace(struct stack_trace *trace)
{
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index 97b22fa7cb3a..629f8e9981f1 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -120,6 +120,6 @@ void __init time_init(void)
#ifdef CONFIG_COMMON_CLK
of_clk_init(NULL);
#endif
- clocksource_probe();
+ timer_probe();
}
}
diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c
index f8a3ab82e77f..24ac3cab411d 100644
--- a/arch/arm/kernel/topology.c
+++ b/arch/arm/kernel/topology.c
@@ -11,6 +11,7 @@
* for more details.
*/
+#include <linux/arch_topology.h>
#include <linux/cpu.h>
#include <linux/cpufreq.h>
#include <linux/cpumask.h>
@@ -44,77 +45,6 @@
* to run the rebalance_domains for all idle cores and the cpu_capacity can be
* updated during this sequence.
*/
-static DEFINE_PER_CPU(unsigned long, cpu_scale) = SCHED_CAPACITY_SCALE;
-static DEFINE_MUTEX(cpu_scale_mutex);
-
-unsigned long arch_scale_cpu_capacity(struct sched_domain *sd, int cpu)
-{
- return per_cpu(cpu_scale, cpu);
-}
-
-static void set_capacity_scale(unsigned int cpu, unsigned long capacity)
-{
- per_cpu(cpu_scale, cpu) = capacity;
-}
-
-#ifdef CONFIG_PROC_SYSCTL
-static ssize_t cpu_capacity_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct cpu *cpu = container_of(dev, struct cpu, dev);
-
- return sprintf(buf, "%lu\n",
- arch_scale_cpu_capacity(NULL, cpu->dev.id));
-}
-
-static ssize_t cpu_capacity_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t count)
-{
- struct cpu *cpu = container_of(dev, struct cpu, dev);
- int this_cpu = cpu->dev.id, i;
- unsigned long new_capacity;
- ssize_t ret;
-
- if (count) {
- ret = kstrtoul(buf, 0, &new_capacity);
- if (ret)
- return ret;
- if (new_capacity > SCHED_CAPACITY_SCALE)
- return -EINVAL;
-
- mutex_lock(&cpu_scale_mutex);
- for_each_cpu(i, &cpu_topology[this_cpu].core_sibling)
- set_capacity_scale(i, new_capacity);
- mutex_unlock(&cpu_scale_mutex);
- }
-
- return count;
-}
-
-static DEVICE_ATTR_RW(cpu_capacity);
-
-static int register_cpu_capacity_sysctl(void)
-{
- int i;
- struct device *cpu;
-
- for_each_possible_cpu(i) {
- cpu = get_cpu_device(i);
- if (!cpu) {
- pr_err("%s: too early to get CPU%d device!\n",
- __func__, i);
- continue;
- }
- device_create_file(cpu, &dev_attr_cpu_capacity);
- }
-
- return 0;
-}
-subsys_initcall(register_cpu_capacity_sysctl);
-#endif
#ifdef CONFIG_OF
struct cpu_efficiency {
@@ -143,145 +73,6 @@ static unsigned long *__cpu_capacity;
static unsigned long middle_capacity = 1;
static bool cap_from_dt = true;
-static u32 *raw_capacity;
-static bool cap_parsing_failed;
-static u32 capacity_scale;
-
-static int __init parse_cpu_capacity(struct device_node *cpu_node, int cpu)
-{
- int ret = 1;
- u32 cpu_capacity;
-
- if (cap_parsing_failed)
- return !ret;
-
- ret = of_property_read_u32(cpu_node,
- "capacity-dmips-mhz",
- &cpu_capacity);
- if (!ret) {
- if (!raw_capacity) {
- raw_capacity = kcalloc(num_possible_cpus(),
- sizeof(*raw_capacity),
- GFP_KERNEL);
- if (!raw_capacity) {
- pr_err("cpu_capacity: failed to allocate memory for raw capacities\n");
- cap_parsing_failed = true;
- return !ret;
- }
- }
- capacity_scale = max(cpu_capacity, capacity_scale);
- raw_capacity[cpu] = cpu_capacity;
- pr_debug("cpu_capacity: %s cpu_capacity=%u (raw)\n",
- cpu_node->full_name, raw_capacity[cpu]);
- } else {
- if (raw_capacity) {
- pr_err("cpu_capacity: missing %s raw capacity\n",
- cpu_node->full_name);
- pr_err("cpu_capacity: partial information: fallback to 1024 for all CPUs\n");
- }
- cap_parsing_failed = true;
- kfree(raw_capacity);
- }
-
- return !ret;
-}
-
-static void normalize_cpu_capacity(void)
-{
- u64 capacity;
- int cpu;
-
- if (!raw_capacity || cap_parsing_failed)
- return;
-
- pr_debug("cpu_capacity: capacity_scale=%u\n", capacity_scale);
- mutex_lock(&cpu_scale_mutex);
- for_each_possible_cpu(cpu) {
- capacity = (raw_capacity[cpu] << SCHED_CAPACITY_SHIFT)
- / capacity_scale;
- set_capacity_scale(cpu, capacity);
- pr_debug("cpu_capacity: CPU%d cpu_capacity=%lu\n",
- cpu, arch_scale_cpu_capacity(NULL, cpu));
- }
- mutex_unlock(&cpu_scale_mutex);
-}
-
-#ifdef CONFIG_CPU_FREQ
-static cpumask_var_t cpus_to_visit;
-static bool cap_parsing_done;
-static void parsing_done_workfn(struct work_struct *work);
-static DECLARE_WORK(parsing_done_work, parsing_done_workfn);
-
-static int
-init_cpu_capacity_callback(struct notifier_block *nb,
- unsigned long val,
- void *data)
-{
- struct cpufreq_policy *policy = data;
- int cpu;
-
- if (cap_parsing_failed || cap_parsing_done)
- return 0;
-
- switch (val) {
- case CPUFREQ_NOTIFY:
- pr_debug("cpu_capacity: init cpu capacity for CPUs [%*pbl] (to_visit=%*pbl)\n",
- cpumask_pr_args(policy->related_cpus),
- cpumask_pr_args(cpus_to_visit));
- cpumask_andnot(cpus_to_visit,
- cpus_to_visit,
- policy->related_cpus);
- for_each_cpu(cpu, policy->related_cpus) {
- raw_capacity[cpu] = arch_scale_cpu_capacity(NULL, cpu) *
- policy->cpuinfo.max_freq / 1000UL;
- capacity_scale = max(raw_capacity[cpu], capacity_scale);
- }
- if (cpumask_empty(cpus_to_visit)) {
- normalize_cpu_capacity();
- kfree(raw_capacity);
- pr_debug("cpu_capacity: parsing done\n");
- cap_parsing_done = true;
- schedule_work(&parsing_done_work);
- }
- }
- return 0;
-}
-
-static struct notifier_block init_cpu_capacity_notifier = {
- .notifier_call = init_cpu_capacity_callback,
-};
-
-static int __init register_cpufreq_notifier(void)
-{
- if (cap_parsing_failed)
- return -EINVAL;
-
- if (!alloc_cpumask_var(&cpus_to_visit, GFP_KERNEL)) {
- pr_err("cpu_capacity: failed to allocate memory for cpus_to_visit\n");
- return -ENOMEM;
- }
- cpumask_copy(cpus_to_visit, cpu_possible_mask);
-
- return cpufreq_register_notifier(&init_cpu_capacity_notifier,
- CPUFREQ_POLICY_NOTIFIER);
-}
-core_initcall(register_cpufreq_notifier);
-
-static void parsing_done_workfn(struct work_struct *work)
-{
- cpufreq_unregister_notifier(&init_cpu_capacity_notifier,
- CPUFREQ_POLICY_NOTIFIER);
-}
-
-#else
-static int __init free_raw_capacity(void)
-{
- kfree(raw_capacity);
-
- return 0;
-}
-core_initcall(free_raw_capacity);
-#endif
/*
* Iterate all CPUs' descriptor in DT and compute the efficiency
@@ -320,7 +111,7 @@ static void __init parse_dt_topology(void)
continue;
}
- if (parse_cpu_capacity(cn, cpu)) {
+ if (topology_parse_cpu_capacity(cn, cpu)) {
of_node_put(cn);
continue;
}
@@ -336,8 +127,7 @@ static void __init parse_dt_topology(void)
rate = of_get_property(cn, "clock-frequency", &len);
if (!rate || len != 4) {
- pr_err("%s missing clock-frequency property\n",
- cn->full_name);
+ pr_err("%pOF missing clock-frequency property\n", cn);
continue;
}
@@ -368,8 +158,8 @@ static void __init parse_dt_topology(void)
middle_capacity = ((max_capacity / 3)
>> (SCHED_CAPACITY_SHIFT-1)) + 1;
- if (cap_from_dt && !cap_parsing_failed)
- normalize_cpu_capacity();
+ if (cap_from_dt)
+ topology_normalize_cpu_scale();
}
/*
@@ -382,10 +172,10 @@ static void update_cpu_capacity(unsigned int cpu)
if (!cpu_capacity(cpu) || cap_from_dt)
return;
- set_capacity_scale(cpu, cpu_capacity(cpu) / middle_capacity);
+ topology_set_cpu_scale(cpu, cpu_capacity(cpu) / middle_capacity);
pr_info("CPU%u: update cpu_capacity %lu\n",
- cpu, arch_scale_cpu_capacity(NULL, cpu));
+ cpu, topology_get_cpu_scale(NULL, cpu));
}
#else
diff --git a/arch/arm/kernel/vdso.c b/arch/arm/kernel/vdso.c
index 53cf86cf2d1a..a4d6dc0f2427 100644
--- a/arch/arm/kernel/vdso.c
+++ b/arch/arm/kernel/vdso.c
@@ -54,8 +54,26 @@ static const struct vm_special_mapping vdso_data_mapping = {
.pages = &vdso_data_page,
};
+static int vdso_mremap(const struct vm_special_mapping *sm,
+ struct vm_area_struct *new_vma)
+{
+ unsigned long new_size = new_vma->vm_end - new_vma->vm_start;
+ unsigned long vdso_size;
+
+ /* without VVAR page */
+ vdso_size = (vdso_total_pages - 1) << PAGE_SHIFT;
+
+ if (vdso_size != new_size)
+ return -EINVAL;
+
+ current->mm->context.vdso = new_vma->vm_start;
+
+ return 0;
+}
+
static struct vm_special_mapping vdso_text_mapping __ro_after_init = {
.name = "[vdso]",
+ .mremap = vdso_mremap,
};
struct elfinfo {
diff --git a/arch/arm/kvm/guest.c b/arch/arm/kvm/guest.c
index fa6182a40941..1e0784ebbfd6 100644
--- a/arch/arm/kvm/guest.c
+++ b/arch/arm/kvm/guest.c
@@ -301,3 +301,54 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
{
return -EINVAL;
}
+
+int kvm_arm_vcpu_arch_set_attr(struct kvm_vcpu *vcpu,
+ struct kvm_device_attr *attr)
+{
+ int ret;
+
+ switch (attr->group) {
+ case KVM_ARM_VCPU_TIMER_CTRL:
+ ret = kvm_arm_timer_set_attr(vcpu, attr);
+ break;
+ default:
+ ret = -ENXIO;
+ break;
+ }
+
+ return ret;
+}
+
+int kvm_arm_vcpu_arch_get_attr(struct kvm_vcpu *vcpu,
+ struct kvm_device_attr *attr)
+{
+ int ret;
+
+ switch (attr->group) {
+ case KVM_ARM_VCPU_TIMER_CTRL:
+ ret = kvm_arm_timer_get_attr(vcpu, attr);
+ break;
+ default:
+ ret = -ENXIO;
+ break;
+ }
+
+ return ret;
+}
+
+int kvm_arm_vcpu_arch_has_attr(struct kvm_vcpu *vcpu,
+ struct kvm_device_attr *attr)
+{
+ int ret;
+
+ switch (attr->group) {
+ case KVM_ARM_VCPU_TIMER_CTRL:
+ ret = kvm_arm_timer_has_attr(vcpu, attr);
+ break;
+ default:
+ ret = -ENXIO;
+ break;
+ }
+
+ return ret;
+}
diff --git a/arch/arm/kvm/handle_exit.c b/arch/arm/kvm/handle_exit.c
index f86a9aaef462..cf8bf6bf87c4 100644
--- a/arch/arm/kvm/handle_exit.c
+++ b/arch/arm/kvm/handle_exit.c
@@ -67,11 +67,12 @@ static int kvm_handle_wfx(struct kvm_vcpu *vcpu, struct kvm_run *run)
if (kvm_vcpu_get_hsr(vcpu) & HSR_WFI_IS_WFE) {
trace_kvm_wfx(*vcpu_pc(vcpu), true);
vcpu->stat.wfe_exit_stat++;
- kvm_vcpu_on_spin(vcpu);
+ kvm_vcpu_on_spin(vcpu, vcpu_mode_priv(vcpu));
} else {
trace_kvm_wfx(*vcpu_pc(vcpu), false);
vcpu->stat.wfi_exit_stat++;
kvm_vcpu_block(vcpu);
+ kvm_clear_request(KVM_REQ_UNHALT, vcpu);
}
kvm_skip_instr(vcpu, kvm_vcpu_trap_il_is32bit(vcpu));
diff --git a/arch/arm/kvm/hyp/switch.c b/arch/arm/kvm/hyp/switch.c
index 624a510d31df..ebd2dd46adf7 100644
--- a/arch/arm/kvm/hyp/switch.c
+++ b/arch/arm/kvm/hyp/switch.c
@@ -237,8 +237,10 @@ void __hyp_text __noreturn __hyp_panic(int cause)
vcpu = (struct kvm_vcpu *)read_sysreg(HTPIDR);
host_ctxt = kern_hyp_va(vcpu->arch.host_cpu_context);
+ __timer_save_state(vcpu);
__deactivate_traps(vcpu);
__deactivate_vm(vcpu);
+ __banked_restore_state(host_ctxt);
__sysreg_restore_state(host_ctxt);
}
diff --git a/arch/arm/kvm/reset.c b/arch/arm/kvm/reset.c
index 1da8b2d14550..5ed0c3ee33d6 100644
--- a/arch/arm/kvm/reset.c
+++ b/arch/arm/kvm/reset.c
@@ -37,16 +37,6 @@ static struct kvm_regs cortexa_regs_reset = {
.usr_regs.ARM_cpsr = SVC_MODE | PSR_A_BIT | PSR_I_BIT | PSR_F_BIT,
};
-static const struct kvm_irq_level cortexa_ptimer_irq = {
- { .irq = 30 },
- .level = 1,
-};
-
-static const struct kvm_irq_level cortexa_vtimer_irq = {
- { .irq = 27 },
- .level = 1,
-};
-
/*******************************************************************************
* Exported reset function
@@ -62,16 +52,12 @@ static const struct kvm_irq_level cortexa_vtimer_irq = {
int kvm_reset_vcpu(struct kvm_vcpu *vcpu)
{
struct kvm_regs *reset_regs;
- const struct kvm_irq_level *cpu_vtimer_irq;
- const struct kvm_irq_level *cpu_ptimer_irq;
switch (vcpu->arch.target) {
case KVM_ARM_TARGET_CORTEX_A7:
case KVM_ARM_TARGET_CORTEX_A15:
reset_regs = &cortexa_regs_reset;
vcpu->arch.midr = read_cpuid_id();
- cpu_vtimer_irq = &cortexa_vtimer_irq;
- cpu_ptimer_irq = &cortexa_ptimer_irq;
break;
default:
return -ENODEV;
@@ -84,5 +70,5 @@ int kvm_reset_vcpu(struct kvm_vcpu *vcpu)
kvm_reset_coprocs(vcpu);
/* Reset arch_timer context */
- return kvm_timer_vcpu_reset(vcpu, cpu_vtimer_irq, cpu_ptimer_irq);
+ return kvm_timer_vcpu_reset(vcpu);
}
diff --git a/arch/arm/lib/memset.S b/arch/arm/lib/memset.S
index 3c65e3bd790f..ed6d35d9cdb5 100644
--- a/arch/arm/lib/memset.S
+++ b/arch/arm/lib/memset.S
@@ -28,7 +28,7 @@ UNWIND( .fnstart )
1: orr r1, r1, r1, lsl #8
orr r1, r1, r1, lsl #16
mov r3, r1
- cmp r2, #16
+7: cmp r2, #16
blt 4f
#if ! CALGN(1)+0
@@ -41,7 +41,7 @@ UNWIND( .fnend )
UNWIND( .fnstart )
UNWIND( .save {r8, lr} )
mov r8, r1
- mov lr, r1
+ mov lr, r3
2: subs r2, r2, #64
stmgeia ip!, {r1, r3, r8, lr} @ 64 bytes at a time.
@@ -73,11 +73,11 @@ UNWIND( .fnend )
UNWIND( .fnstart )
UNWIND( .save {r4-r8, lr} )
mov r4, r1
- mov r5, r1
+ mov r5, r3
mov r6, r1
- mov r7, r1
+ mov r7, r3
mov r8, r1
- mov lr, r1
+ mov lr, r3
cmp r2, #96
tstgt ip, #31
@@ -114,7 +114,7 @@ UNWIND( .fnstart )
tst r2, #4
strne r1, [ip], #4
/*
- * When we get here, we've got less than 4 bytes to zero. We
+ * When we get here, we've got less than 4 bytes to set. We
* may have an unaligned pointer as well.
*/
5: tst r2, #2
@@ -135,3 +135,15 @@ UNWIND( .fnstart )
UNWIND( .fnend )
ENDPROC(memset)
ENDPROC(mmioset)
+
+ENTRY(__memset32)
+UNWIND( .fnstart )
+ mov r3, r1 @ copy r1 to r3 and fall into memset64
+UNWIND( .fnend )
+ENDPROC(__memset32)
+ENTRY(__memset64)
+UNWIND( .fnstart )
+ mov ip, r0 @ preserve r0 as return value
+ b 7b @ jump into the middle of memset
+UNWIND( .fnend )
+ENDPROC(__memset64)
diff --git a/arch/arm/mach-actions/Kconfig b/arch/arm/mach-actions/Kconfig
new file mode 100644
index 000000000000..ad9c5c89c683
--- /dev/null
+++ b/arch/arm/mach-actions/Kconfig
@@ -0,0 +1,16 @@
+menuconfig ARCH_ACTIONS
+ bool "Actions Semi SoCs"
+ depends on ARCH_MULTI_V7
+ select ARM_AMBA
+ select ARM_GIC
+ select ARM_GLOBAL_TIMER
+ select CACHE_L2X0
+ select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
+ select COMMON_CLK
+ select GENERIC_IRQ_CHIP
+ select HAVE_ARM_SCU if SMP
+ select HAVE_ARM_TWD if SMP
+ select OWL_PM_DOMAINS_HELPER
+ select OWL_TIMER
+ help
+ This enables support for the Actions Semiconductor S500 SoC family.
diff --git a/arch/arm/mach-actions/Makefile b/arch/arm/mach-actions/Makefile
new file mode 100644
index 000000000000..c0f116241da7
--- /dev/null
+++ b/arch/arm/mach-actions/Makefile
@@ -0,0 +1,3 @@
+obj-${CONFIG_SMP} += platsmp.o headsmp.o
+
+AFLAGS_headsmp.o := -Wa,-march=armv7-a
diff --git a/arch/arm/mach-actions/headsmp.S b/arch/arm/mach-actions/headsmp.S
new file mode 100644
index 000000000000..65f53bdb69e7
--- /dev/null
+++ b/arch/arm/mach-actions/headsmp.S
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2012 Actions Semi Inc.
+ * Author: Actions Semi, Inc.
+ *
+ * Copyright (c) 2017 Andreas Färber
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/linkage.h>
+#include <linux/init.h>
+
+ENTRY(owl_v7_invalidate_l1)
+ mov r0, #0
+ mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
+ mcr p15, 2, r0, c0, c0, 0
+ mrc p15, 1, r0, c0, c0, 0
+
+ ldr r1, =0x7fff
+ and r2, r1, r0, lsr #13
+
+ ldr r1, =0x3ff
+
+ and r3, r1, r0, lsr #3 @ NumWays - 1
+ add r2, r2, #1 @ NumSets
+
+ and r0, r0, #0x7
+ add r0, r0, #4 @ SetShift
+
+ clz r1, r3 @ WayShift
+ add r4, r3, #1 @ NumWays
+1: sub r2, r2, #1 @ NumSets--
+ mov r3, r4 @ Temp = NumWays
+2: subs r3, r3, #1 @ Temp--
+ mov r5, r3, lsl r1
+ mov r6, r2, lsl r0
+ orr r5, r5, r6 @ Reg = (Temp<<WayShift)|(NumSets<<SetShift)
+ mcr p15, 0, r5, c7, c6, 2
+ bgt 2b
+ cmp r2, #0
+ bgt 1b
+ dsb
+ isb
+ mov pc, lr
+ENDPROC(owl_v7_invalidate_l1)
+
+ENTRY(owl_secondary_startup)
+ bl owl_v7_invalidate_l1
+ b secondary_startup
diff --git a/arch/arm/mach-actions/platsmp.c b/arch/arm/mach-actions/platsmp.c
new file mode 100644
index 000000000000..12a9e331b432
--- /dev/null
+++ b/arch/arm/mach-actions/platsmp.c
@@ -0,0 +1,171 @@
+/*
+ * Actions Semi Leopard
+ *
+ * This file is based on arm realview smp platform.
+ *
+ * Copyright 2012 Actions Semi Inc.
+ * Author: Actions Semi, Inc.
+ *
+ * Copyright (c) 2017 Andreas Färber
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/smp.h>
+#include <linux/soc/actions/owl-sps.h>
+#include <asm/cacheflush.h>
+#include <asm/smp_plat.h>
+#include <asm/smp_scu.h>
+
+#define OWL_CPU1_ADDR 0x50
+#define OWL_CPU1_FLAG 0x5c
+
+#define OWL_CPUx_FLAG_BOOT 0x55aa
+
+#define OWL_SPS_PG_CTL_PWR_CPU2 BIT(5)
+#define OWL_SPS_PG_CTL_PWR_CPU3 BIT(6)
+#define OWL_SPS_PG_CTL_ACK_CPU2 BIT(21)
+#define OWL_SPS_PG_CTL_ACK_CPU3 BIT(22)
+
+static void __iomem *scu_base_addr;
+static void __iomem *sps_base_addr;
+static void __iomem *timer_base_addr;
+static int ncores;
+
+static DEFINE_SPINLOCK(boot_lock);
+
+void owl_secondary_startup(void);
+
+static int s500_wakeup_secondary(unsigned int cpu)
+{
+ int ret;
+
+ if (cpu > 3)
+ return -EINVAL;
+
+ /* The generic PM domain driver is not available this early. */
+ switch (cpu) {
+ case 2:
+ ret = owl_sps_set_pg(sps_base_addr,
+ OWL_SPS_PG_CTL_PWR_CPU2,
+ OWL_SPS_PG_CTL_ACK_CPU2, true);
+ if (ret)
+ return ret;
+ break;
+ case 3:
+ ret = owl_sps_set_pg(sps_base_addr,
+ OWL_SPS_PG_CTL_PWR_CPU3,
+ OWL_SPS_PG_CTL_ACK_CPU3, true);
+ if (ret)
+ return ret;
+ break;
+ }
+
+ /* wait for CPUx to run to WFE instruction */
+ udelay(200);
+
+ writel(virt_to_phys(owl_secondary_startup),
+ timer_base_addr + OWL_CPU1_ADDR + (cpu - 1) * 4);
+ writel(OWL_CPUx_FLAG_BOOT,
+ timer_base_addr + OWL_CPU1_FLAG + (cpu - 1) * 4);
+
+ dsb_sev();
+ mb();
+
+ return 0;
+}
+
+static int s500_smp_boot_secondary(unsigned int cpu, struct task_struct *idle)
+{
+ unsigned long timeout;
+ int ret;
+
+ ret = s500_wakeup_secondary(cpu);
+ if (ret)
+ return ret;
+
+ udelay(10);
+
+ spin_lock(&boot_lock);
+
+ smp_send_reschedule(cpu);
+
+ timeout = jiffies + (1 * HZ);
+ while (time_before(jiffies, timeout)) {
+ if (pen_release == -1)
+ break;
+ }
+
+ writel(0, timer_base_addr + OWL_CPU1_ADDR + (cpu - 1) * 4);
+ writel(0, timer_base_addr + OWL_CPU1_FLAG + (cpu - 1) * 4);
+
+ spin_unlock(&boot_lock);
+
+ return 0;
+}
+
+static void __init s500_smp_prepare_cpus(unsigned int max_cpus)
+{
+ struct device_node *node;
+
+ node = of_find_compatible_node(NULL, NULL, "actions,s500-timer");
+ if (!node) {
+ pr_err("%s: missing timer\n", __func__);
+ return;
+ }
+
+ timer_base_addr = of_iomap(node, 0);
+ if (!timer_base_addr) {
+ pr_err("%s: could not map timer registers\n", __func__);
+ return;
+ }
+
+ node = of_find_compatible_node(NULL, NULL, "actions,s500-sps");
+ if (!node) {
+ pr_err("%s: missing sps\n", __func__);
+ return;
+ }
+
+ sps_base_addr = of_iomap(node, 0);
+ if (!sps_base_addr) {
+ pr_err("%s: could not map sps registers\n", __func__);
+ return;
+ }
+
+ if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9) {
+ node = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-scu");
+ if (!node) {
+ pr_err("%s: missing scu\n", __func__);
+ return;
+ }
+
+ scu_base_addr = of_iomap(node, 0);
+ if (!scu_base_addr) {
+ pr_err("%s: could not map scu registers\n", __func__);
+ return;
+ }
+
+ /*
+ * While the number of cpus is gathered from dt, also get the
+ * number of cores from the scu to verify this value when
+ * booting the cores.
+ */
+ ncores = scu_get_core_count(scu_base_addr);
+ pr_debug("%s: ncores %d\n", __func__, ncores);
+
+ scu_enable(scu_base_addr);
+ }
+}
+
+static const struct smp_operations s500_smp_ops __initconst = {
+ .smp_prepare_cpus = s500_smp_prepare_cpus,
+ .smp_boot_secondary = s500_smp_boot_secondary,
+};
+CPU_METHOD_OF_DECLARE(s500_smp, "actions,s500-smp", &s500_smp_ops);
diff --git a/arch/arm/mach-aspeed/Kconfig b/arch/arm/mach-aspeed/Kconfig
index f3f8c5c658db..2d5570e6e186 100644
--- a/arch/arm/mach-aspeed/Kconfig
+++ b/arch/arm/mach-aspeed/Kconfig
@@ -4,7 +4,7 @@ menuconfig ARCH_ASPEED
select SRAM
select WATCHDOG
select ASPEED_WATCHDOG
- select MOXART_TIMER
+ select FTTMR010_TIMER
select MFD_SYSCON
select PINCTRL
help
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index cbd959b73654..6d870421a7a6 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -1,13 +1,21 @@
menuconfig ARCH_AT91
bool "Atmel SoCs"
- depends on ARCH_MULTI_V4T || ARCH_MULTI_V5 || ARCH_MULTI_V7
- select ARM_CPU_SUSPEND if PM
+ depends on ARCH_MULTI_V4T || ARCH_MULTI_V5 || ARCH_MULTI_V7 || ARM_SINGLE_ARMV7M
+ select ARM_CPU_SUSPEND if PM && ARCH_MULTI_V7
select COMMON_CLK_AT91
select GPIOLIB
select PINCTRL
select SOC_BUS
if ARCH_AT91
+config SOC_SAMV7
+ bool "SAM Cortex-M7 family" if ARM_SINGLE_ARMV7M
+ select COMMON_CLK_AT91
+ select PINCTRL_AT91
+ help
+ Select this if you are using an SoC from Atmel's SAME7, SAMS7 or SAMV7
+ families.
+
config SOC_SAMA5D2
bool "SAMA5D2 family"
depends on ARCH_MULTI_V7
@@ -18,6 +26,7 @@ config SOC_SAMA5D2
select HAVE_AT91_USB_CLK
select HAVE_AT91_H32MX
select HAVE_AT91_GENERATED_CLK
+ select HAVE_AT91_AUDIO_PLL
select PINCTRL_AT91PIO4
help
Select this if ou are using one of Atmel's SAMA5D2 family SoC.
@@ -53,6 +62,7 @@ config SOC_AT91RM9200
bool "AT91RM9200"
depends on ARCH_MULTI_V4T
select ATMEL_AIC_IRQ
+ select ATMEL_PM if PM
select ATMEL_ST
select CPU_ARM920T
select HAVE_AT91_USB_CLK
@@ -66,6 +76,7 @@ config SOC_AT91SAM9
bool "AT91SAM9"
depends on ARCH_MULTI_V5
select ATMEL_AIC_IRQ
+ select ATMEL_PM if PM
select ATMEL_SDRAMC
select CPU_ARM926T
select HAVE_AT91_SMD
@@ -115,6 +126,9 @@ config HAVE_AT91_H32MX
config HAVE_AT91_GENERATED_CLK
bool
+config HAVE_AT91_AUDIO_PLL
+ bool
+
config SOC_SAM_V4_V5
bool
@@ -124,9 +138,13 @@ config SOC_SAM_V7
config SOC_SAMA5
bool
select ATMEL_AIC5_IRQ
+ select ATMEL_PM if PM
select ATMEL_SDRAMC
select MEMORY
select SOC_SAM_V7
select SRAM if PM
+config ATMEL_PM
+ bool
+
endif
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index cfd8f60a9268..ee34aa34cc51 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -6,10 +6,10 @@
obj-$(CONFIG_SOC_AT91RM9200) += at91rm9200.o
obj-$(CONFIG_SOC_AT91SAM9) += at91sam9.o
obj-$(CONFIG_SOC_SAMA5) += sama5.o
+obj-$(CONFIG_SOC_SAMV7) += samv7.o
# Power Management
-obj-$(CONFIG_PM) += pm.o
-obj-$(CONFIG_PM) += pm_suspend.o
+obj-$(CONFIG_ATMEL_PM) += pm.o pm_suspend.o
ifeq ($(CONFIG_CPU_V7),y)
AFLAGS_pm_suspend.o := -march=armv7-a
diff --git a/arch/arm/mach-at91/Makefile.boot b/arch/arm/mach-at91/Makefile.boot
new file mode 100644
index 000000000000..eacfc3f5c33e
--- /dev/null
+++ b/arch/arm/mach-at91/Makefile.boot
@@ -0,0 +1,3 @@
+# Empty file waiting for deletion once Makefile.boot isn't needed any more.
+# Patch waits for application at
+# http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=7889/1 .
diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h
index f1ead0f13c19..e2bd17237964 100644
--- a/arch/arm/mach-at91/generic.h
+++ b/arch/arm/mach-at91/generic.h
@@ -15,10 +15,12 @@
extern void __init at91rm9200_pm_init(void);
extern void __init at91sam9_pm_init(void);
extern void __init sama5_pm_init(void);
+extern void __init sama5d2_pm_init(void);
#else
static inline void __init at91rm9200_pm_init(void) { }
static inline void __init at91sam9_pm_init(void) { }
static inline void __init sama5_pm_init(void) { }
+static inline void __init sama5d2_pm_init(void) { }
#endif
#endif /* _AT91_GENERIC_H */
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 283e79ab587d..849014c01cf4 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -15,6 +15,7 @@
#include <linux/of_address.h>
#include <linux/of.h>
#include <linux/of_platform.h>
+#include <linux/parser.h>
#include <linux/suspend.h>
#include <linux/clk/at91_pmc.h>
@@ -22,6 +23,7 @@
#include <asm/cacheflush.h>
#include <asm/fncpy.h>
#include <asm/system_misc.h>
+#include <asm/suspend.h>
#include "generic.h"
#include "pm.h"
@@ -37,7 +39,17 @@ extern void at91_pinctrl_gpio_suspend(void);
extern void at91_pinctrl_gpio_resume(void);
#endif
-static struct at91_pm_data pm_data;
+static const match_table_t pm_modes __initconst = {
+ { 0, "standby" },
+ { AT91_PM_SLOW_CLOCK, "ulp0" },
+ { AT91_PM_BACKUP, "backup" },
+ { -1, NULL },
+};
+
+static struct at91_pm_data pm_data = {
+ .standby_mode = 0,
+ .suspend_mode = AT91_PM_SLOW_CLOCK,
+};
#define at91_ramc_read(id, field) \
__raw_readl(pm_data.ramc[id] + field)
@@ -58,15 +70,33 @@ static int at91_pm_valid_state(suspend_state_t state)
}
}
+static int canary = 0xA5A5A5A5;
-static suspend_state_t target_state;
+static struct at91_pm_bu {
+ int suspended;
+ unsigned long reserved;
+ phys_addr_t canary;
+ phys_addr_t resume;
+} *pm_bu;
/*
* Called after processes are frozen, but before we shutdown devices.
*/
static int at91_pm_begin(suspend_state_t state)
{
- target_state = state;
+ switch (state) {
+ case PM_SUSPEND_MEM:
+ pm_data.mode = pm_data.suspend_mode;
+ break;
+
+ case PM_SUSPEND_STANDBY:
+ pm_data.mode = pm_data.standby_mode;
+ break;
+
+ default:
+ pm_data.mode = -1;
+ }
+
return 0;
}
@@ -115,7 +145,7 @@ static int at91_pm_verify_clocks(void)
*/
int at91_suspend_entering_slow_clock(void)
{
- return (target_state == PM_SUSPEND_MEM);
+ return (pm_data.mode >= AT91_PM_SLOW_CLOCK);
}
EXPORT_SYMBOL(at91_suspend_entering_slow_clock);
@@ -123,50 +153,65 @@ static void (*at91_suspend_sram_fn)(struct at91_pm_data *);
extern void at91_pm_suspend_in_sram(struct at91_pm_data *pm_data);
extern u32 at91_pm_suspend_in_sram_sz;
-static void at91_pm_suspend(suspend_state_t state)
+static int at91_suspend_finish(unsigned long val)
{
- pm_data.mode = (state == PM_SUSPEND_MEM) ? AT91_PM_SLOW_CLOCK : 0;
-
flush_cache_all();
outer_disable();
at91_suspend_sram_fn(&pm_data);
+ return 0;
+}
+
+static void at91_pm_suspend(suspend_state_t state)
+{
+ if (pm_data.mode == AT91_PM_BACKUP) {
+ pm_bu->suspended = 1;
+
+ cpu_suspend(0, at91_suspend_finish);
+
+ /* The SRAM is lost between suspend cycles */
+ at91_suspend_sram_fn = fncpy(at91_suspend_sram_fn,
+ &at91_pm_suspend_in_sram,
+ at91_pm_suspend_in_sram_sz);
+ } else {
+ at91_suspend_finish(0);
+ }
+
outer_resume();
}
+/*
+ * STANDBY mode has *all* drivers suspended; ignores irqs not marked as 'wakeup'
+ * event sources; and reduces DRAM power. But otherwise it's identical to
+ * PM_SUSPEND_ON: cpu idle, and nothing fancy done with main or cpu clocks.
+ *
+ * AT91_PM_SLOW_CLOCK is like STANDBY plus slow clock mode, so drivers must
+ * suspend more deeply, the master clock switches to the clk32k and turns off
+ * the main oscillator
+ *
+ * AT91_PM_BACKUP turns off the whole SoC after placing the DDR in self refresh
+ */
static int at91_pm_enter(suspend_state_t state)
{
#ifdef CONFIG_PINCTRL_AT91
at91_pinctrl_gpio_suspend();
#endif
+
switch (state) {
- /*
- * Suspend-to-RAM is like STANDBY plus slow clock mode, so
- * drivers must suspend more deeply, the master clock switches
- * to the clk32k and turns off the main oscillator
- */
case PM_SUSPEND_MEM:
+ case PM_SUSPEND_STANDBY:
/*
* Ensure that clocks are in a valid state.
*/
- if (!at91_pm_verify_clocks())
+ if ((pm_data.mode >= AT91_PM_SLOW_CLOCK) &&
+ !at91_pm_verify_clocks())
goto error;
at91_pm_suspend(state);
break;
- /*
- * STANDBY mode has *all* drivers suspended; ignores irqs not
- * marked as 'wakeup' event sources; and reduces DRAM power.
- * But otherwise it's identical to PM_SUSPEND_ON: cpu idle, and
- * nothing fancy done with main or cpu clocks.
- */
- case PM_SUSPEND_STANDBY:
- at91_pm_suspend(state);
- break;
-
case PM_SUSPEND_ON:
cpu_do_idle();
break;
@@ -177,8 +222,6 @@ static int at91_pm_enter(suspend_state_t state)
}
error:
- target_state = PM_SUSPEND_ON;
-
#ifdef CONFIG_PINCTRL_AT91
at91_pinctrl_gpio_resume();
#endif
@@ -190,7 +233,6 @@ error:
*/
static void at91_pm_end(void)
{
- target_state = PM_SUSPEND_ON;
}
@@ -436,6 +478,79 @@ static void __init at91_pm_sram_init(void)
&at91_pm_suspend_in_sram, at91_pm_suspend_in_sram_sz);
}
+static void __init at91_pm_backup_init(void)
+{
+ struct gen_pool *sram_pool;
+ struct device_node *np;
+ struct platform_device *pdev = NULL;
+
+ if ((pm_data.standby_mode != AT91_PM_BACKUP) &&
+ (pm_data.suspend_mode != AT91_PM_BACKUP))
+ return;
+
+ pm_bu = NULL;
+
+ np = of_find_compatible_node(NULL, NULL, "atmel,sama5d2-shdwc");
+ if (!np) {
+ pr_warn("%s: failed to find shdwc!\n", __func__);
+ return;
+ }
+
+ pm_data.shdwc = of_iomap(np, 0);
+ of_node_put(np);
+
+ np = of_find_compatible_node(NULL, NULL, "atmel,sama5d2-sfrbu");
+ if (!np) {
+ pr_warn("%s: failed to find sfrbu!\n", __func__);
+ goto sfrbu_fail;
+ }
+
+ pm_data.sfrbu = of_iomap(np, 0);
+ of_node_put(np);
+ pm_bu = NULL;
+
+ np = of_find_compatible_node(NULL, NULL, "atmel,sama5d2-securam");
+ if (!np)
+ goto securam_fail;
+
+ pdev = of_find_device_by_node(np);
+ of_node_put(np);
+ if (!pdev) {
+ pr_warn("%s: failed to find securam device!\n", __func__);
+ goto securam_fail;
+ }
+
+ sram_pool = gen_pool_get(&pdev->dev, NULL);
+ if (!sram_pool) {
+ pr_warn("%s: securam pool unavailable!\n", __func__);
+ goto securam_fail;
+ }
+
+ pm_bu = (void *)gen_pool_alloc(sram_pool, sizeof(struct at91_pm_bu));
+ if (!pm_bu) {
+ pr_warn("%s: unable to alloc securam!\n", __func__);
+ goto securam_fail;
+ }
+
+ pm_bu->suspended = 0;
+ pm_bu->canary = __pa_symbol(&canary);
+ pm_bu->resume = __pa_symbol(cpu_resume);
+
+ return;
+
+sfrbu_fail:
+ iounmap(pm_data.shdwc);
+ pm_data.shdwc = NULL;
+securam_fail:
+ iounmap(pm_data.sfrbu);
+ pm_data.sfrbu = NULL;
+
+ if (pm_data.standby_mode == AT91_PM_BACKUP)
+ pm_data.standby_mode = AT91_PM_SLOW_CLOCK;
+ if (pm_data.suspend_mode == AT91_PM_BACKUP)
+ pm_data.suspend_mode = AT91_PM_SLOW_CLOCK;
+}
+
struct pmc_info {
unsigned long uhp_udp_mask;
};
@@ -481,14 +596,21 @@ static void __init at91_pm_init(void (*pm_idle)(void))
at91_pm_sram_init();
- if (at91_suspend_sram_fn)
+ if (at91_suspend_sram_fn) {
suspend_set_ops(&at91_pm_ops);
- else
+ pr_info("AT91: PM: standby: %s, suspend: %s\n",
+ pm_modes[pm_data.standby_mode].pattern,
+ pm_modes[pm_data.suspend_mode].pattern);
+ } else {
pr_info("AT91: PM not supported, due to no SRAM allocated\n");
+ }
}
void __init at91rm9200_pm_init(void)
{
+ if (!IS_ENABLED(CONFIG_SOC_AT91RM9200))
+ return;
+
at91_dt_ramc();
/*
@@ -501,12 +623,52 @@ void __init at91rm9200_pm_init(void)
void __init at91sam9_pm_init(void)
{
+ if (!IS_ENABLED(CONFIG_SOC_AT91SAM9))
+ return;
+
at91_dt_ramc();
at91_pm_init(at91sam9_idle);
}
void __init sama5_pm_init(void)
{
+ if (!IS_ENABLED(CONFIG_SOC_SAMA5))
+ return;
+
at91_dt_ramc();
at91_pm_init(NULL);
}
+
+void __init sama5d2_pm_init(void)
+{
+ if (!IS_ENABLED(CONFIG_SOC_SAMA5D2))
+ return;
+
+ at91_pm_backup_init();
+ sama5_pm_init();
+}
+
+static int __init at91_pm_modes_select(char *str)
+{
+ char *s;
+ substring_t args[MAX_OPT_ARGS];
+ int standby, suspend;
+
+ if (!str)
+ return 0;
+
+ s = strsep(&str, ",");
+ standby = match_token(s, pm_modes, args);
+ if (standby < 0)
+ return 0;
+
+ suspend = match_token(str, pm_modes, args);
+ if (suspend < 0)
+ return 0;
+
+ pm_data.standby_mode = standby;
+ pm_data.suspend_mode = suspend;
+
+ return 0;
+}
+early_param("atmel.pm_modes", at91_pm_modes_select);
diff --git a/arch/arm/mach-at91/pm.h b/arch/arm/mach-at91/pm.h
index fc0f7d048187..f95d31496f08 100644
--- a/arch/arm/mach-at91/pm.h
+++ b/arch/arm/mach-at91/pm.h
@@ -22,6 +22,7 @@
#define AT91_MEMCTRL_DDRSDR 2
#define AT91_PM_SLOW_CLOCK 0x01
+#define AT91_PM_BACKUP 0x02
#ifndef __ASSEMBLY__
struct at91_pm_data {
@@ -30,6 +31,10 @@ struct at91_pm_data {
unsigned long uhp_udp_mask;
unsigned int memctrl;
unsigned int mode;
+ void __iomem *shdwc;
+ void __iomem *sfrbu;
+ unsigned int standby_mode;
+ unsigned int suspend_mode;
};
#endif
diff --git a/arch/arm/mach-at91/pm_data-offsets.c b/arch/arm/mach-at91/pm_data-offsets.c
index 30302cb16df0..c0a73e62b725 100644
--- a/arch/arm/mach-at91/pm_data-offsets.c
+++ b/arch/arm/mach-at91/pm_data-offsets.c
@@ -9,5 +9,8 @@ int main(void)
DEFINE(PM_DATA_RAMC1, offsetof(struct at91_pm_data, ramc[1]));
DEFINE(PM_DATA_MEMCTRL, offsetof(struct at91_pm_data, memctrl));
DEFINE(PM_DATA_MODE, offsetof(struct at91_pm_data, mode));
+ DEFINE(PM_DATA_SHDWC, offsetof(struct at91_pm_data, shdwc));
+ DEFINE(PM_DATA_SFRBU, offsetof(struct at91_pm_data, sfrbu));
+
return 0;
}
diff --git a/arch/arm/mach-at91/pm_suspend.S b/arch/arm/mach-at91/pm_suspend.S
index 96781daa671a..daca91feea6a 100644
--- a/arch/arm/mach-at91/pm_suspend.S
+++ b/arch/arm/mach-at91/pm_suspend.S
@@ -97,15 +97,61 @@ ENTRY(at91_pm_suspend_in_sram)
str tmp1, .memtype
ldr tmp1, [r0, #PM_DATA_MODE]
str tmp1, .pm_mode
+ /* Both ldrne below are here to preload their address in the TLB */
+ ldr tmp1, [r0, #PM_DATA_SHDWC]
+ str tmp1, .shdwc
+ cmp tmp1, #0
+ ldrne tmp2, [tmp1, #0]
+ ldr tmp1, [r0, #PM_DATA_SFRBU]
+ str tmp1, .sfr
+ cmp tmp1, #0
+ ldrne tmp2, [tmp1, #0x10]
/* Active the self-refresh mode */
mov r0, #SRAMC_SELF_FRESH_ACTIVE
bl at91_sramc_self_refresh
ldr r0, .pm_mode
- tst r0, #AT91_PM_SLOW_CLOCK
- beq skip_disable_main_clock
+ cmp r0, #AT91_PM_SLOW_CLOCK
+ beq slow_clock
+ cmp r0, #AT91_PM_BACKUP
+ beq backup_mode
+ /* Wait for interrupt */
+ ldr pmc, .pmc_base
+ at91_cpu_idle
+ b exit_suspend
+
+slow_clock:
+ bl at91_slowck_mode
+ b exit_suspend
+backup_mode:
+ bl at91_backup_mode
+ b exit_suspend
+
+exit_suspend:
+ /* Exit the self-refresh mode */
+ mov r0, #SRAMC_SELF_FRESH_EXIT
+ bl at91_sramc_self_refresh
+
+ /* Restore registers, and return */
+ ldmfd sp!, {r4 - r12, pc}
+ENDPROC(at91_pm_suspend_in_sram)
+
+ENTRY(at91_backup_mode)
+ /*BUMEN*/
+ ldr r0, .sfr
+ mov tmp1, #0x1
+ str tmp1, [r0, #0x10]
+
+ /* Shutdown */
+ ldr r0, .shdwc
+ mov tmp1, #0xA5000000
+ add tmp1, tmp1, #0x1
+ str tmp1, [r0, #0]
+ENDPROC(at91_backup_mode)
+
+ENTRY(at91_slowck_mode)
ldr pmc, .pmc_base
/* Save Master clock setting */
@@ -134,18 +180,9 @@ ENTRY(at91_pm_suspend_in_sram)
orr tmp1, tmp1, #AT91_PMC_KEY
str tmp1, [pmc, #AT91_CKGR_MOR]
-skip_disable_main_clock:
- ldr pmc, .pmc_base
-
/* Wait for interrupt */
at91_cpu_idle
- ldr r0, .pm_mode
- tst r0, #AT91_PM_SLOW_CLOCK
- beq skip_enable_main_clock
-
- ldr pmc, .pmc_base
-
/* Turn on the main oscillator */
ldr tmp1, [pmc, #AT91_CKGR_MOR]
orr tmp1, tmp1, #AT91_PMC_MOSCEN
@@ -174,14 +211,8 @@ skip_disable_main_clock:
wait_mckrdy
-skip_enable_main_clock:
- /* Exit the self-refresh mode */
- mov r0, #SRAMC_SELF_FRESH_EXIT
- bl at91_sramc_self_refresh
-
- /* Restore registers, and return */
- ldmfd sp!, {r4 - r12, pc}
-ENDPROC(at91_pm_suspend_in_sram)
+ mov pc, lr
+ENDPROC(at91_slowck_mode)
/*
* void at91_sramc_self_refresh(unsigned int is_active)
@@ -314,6 +345,10 @@ ENDPROC(at91_sramc_self_refresh)
.word 0
.sramc1_base:
.word 0
+.shdwc:
+ .word 0
+.sfr:
+ .word 0
.memtype:
.word 0
.pm_mode:
diff --git a/arch/arm/mach-at91/sama5.c b/arch/arm/mach-at91/sama5.c
index 6d157d0ead8e..3d0bf95a56ae 100644
--- a/arch/arm/mach-at91/sama5.c
+++ b/arch/arm/mach-at91/sama5.c
@@ -34,7 +34,6 @@ DT_MACHINE_START(sama5_dt, "Atmel SAMA5")
MACHINE_END
static const char *const sama5_alt_dt_board_compat[] __initconst = {
- "atmel,sama5d2",
"atmel,sama5d4",
NULL
};
@@ -45,3 +44,21 @@ DT_MACHINE_START(sama5_alt_dt, "Atmel SAMA5")
.dt_compat = sama5_alt_dt_board_compat,
.l2c_aux_mask = ~0UL,
MACHINE_END
+
+static void __init sama5d2_init(void)
+{
+ of_platform_default_populate(NULL, NULL, NULL);
+ sama5d2_pm_init();
+}
+
+static const char *const sama5d2_compat[] __initconst = {
+ "atmel,sama5d2",
+ NULL
+};
+
+DT_MACHINE_START(sama5d2, "Atmel SAMA5")
+ /* Maintainer: Atmel */
+ .init_machine = sama5d2_init,
+ .dt_compat = sama5d2_compat,
+ .l2c_aux_mask = ~0UL,
+MACHINE_END
diff --git a/arch/arm/mach-at91/samv7.c b/arch/arm/mach-at91/samv7.c
new file mode 100644
index 000000000000..11386f190c83
--- /dev/null
+++ b/arch/arm/mach-at91/samv7.c
@@ -0,0 +1,25 @@
+/*
+ * Setup code for SAMv7x
+ *
+ * Copyright (C) 2013 Atmel,
+ * 2016 Andras Szemzo <szemzo.andras@gmail.com>
+ *
+ * Licensed under GPLv2 or later.
+ */
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/of_address.h>
+#include <linux/slab.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/system_misc.h>
+#include "generic.h"
+
+static const char *const samv7_dt_board_compat[] __initconst = {
+ "atmel,samv7",
+ NULL
+};
+
+DT_MACHINE_START(samv7_dt, "Atmel SAMV7")
+ .dt_compat = samv7_dt_board_compat,
+MACHINE_END
diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
index f9389c5910e7..73be3d578851 100644
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -44,6 +44,8 @@ config ARCH_BCM_NSP
select ARM_ERRATA_775420
select ARM_ERRATA_764369 if SMP
select HAVE_SMP
+ select THERMAL
+ select THERMAL_OF
help
Support for Broadcom Northstar Plus SoC.
Broadcom Northstar Plus family of SoCs are used for switching control
@@ -150,7 +152,7 @@ config ARCH_BCM2835
select ARM_ERRATA_411920 if ARCH_MULTI_V6
select ARM_TIMER_SP804
select HAVE_ARM_ARCH_TIMER if ARCH_MULTI_V7
- select CLKSRC_OF
+ select TIMER_OF
select BCM2835_TIMER
select PINCTRL
select PINCTRL_BCM2835
diff --git a/arch/arm/mach-clps711x/Kconfig b/arch/arm/mach-clps711x/Kconfig
index 61284b9389cf..f385b1fcafef 100644
--- a/arch/arm/mach-clps711x/Kconfig
+++ b/arch/arm/mach-clps711x/Kconfig
@@ -2,7 +2,7 @@ menuconfig ARCH_CLPS711X
bool "Cirrus Logic EP721x/EP731x-based"
depends on ARCH_MULTI_V4T
select AUTO_ZRELADDR
- select CLKSRC_OF
+ select TIMER_OF
select CLPS711X_TIMER
select COMMON_CLK
select CPU_ARM720T
diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c
index 58075627c6df..f673cd7a6766 100644
--- a/arch/arm/mach-davinci/board-da830-evm.c
+++ b/arch/arm/mach-davinci/board-da830-evm.c
@@ -17,7 +17,7 @@
#include <linux/gpio/machine.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
-#include <linux/i2c/pcf857x.h>
+#include <linux/platform_data/pcf857x.h>
#include <linux/platform_data/at24.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index b5625d009288..cbde0030c092 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -26,7 +26,7 @@
#include <linux/input/tps6507x-ts.h>
#include <linux/mfd/tps6507x.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>
@@ -1166,7 +1166,7 @@ static struct tvp514x_platform_data tvp5146_pdata = {
#define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
-static const struct vpif_input da850_ch0_inputs[] = {
+static struct vpif_input da850_ch0_inputs[] = {
{
.input = {
.index = 0,
@@ -1181,7 +1181,7 @@ static const struct vpif_input da850_ch0_inputs[] = {
},
};
-static const struct vpif_input da850_ch1_inputs[] = {
+static struct vpif_input da850_ch1_inputs[] = {
{
.input = {
.index = 0,
diff --git a/arch/arm/mach-davinci/board-dm355-evm.c b/arch/arm/mach-davinci/board-dm355-evm.c
index 18296a99c4d2..62e7bc3018f0 100644
--- a/arch/arm/mach-davinci/board-dm355-evm.c
+++ b/arch/arm/mach-davinci/board-dm355-evm.c
@@ -14,7 +14,7 @@
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/clk.h>
diff --git a/arch/arm/mach-davinci/board-dm355-leopard.c b/arch/arm/mach-davinci/board-dm355-leopard.c
index 284ff27c1b32..be997243447b 100644
--- a/arch/arm/mach-davinci/board-dm355-leopard.c
+++ b/arch/arm/mach-davinci/board-dm355-leopard.c
@@ -13,7 +13,7 @@
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/clk.h>
diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c
index 0464999b7137..e75741fb2c1d 100644
--- a/arch/arm/mach-davinci/board-dm365-evm.c
+++ b/arch/arm/mach-davinci/board-dm365-evm.c
@@ -23,7 +23,7 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/slab.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/input.h>
#include <linux/spi/spi.h>
#include <linux/spi/eeprom.h>
diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index 20f1874a5657..b07c9b18d427 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -14,10 +14,10 @@
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
-#include <linux/i2c/pcf857x.h>
+#include <linux/platform_data/pcf857x.h>
#include <linux/platform_data/at24.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/phy.h>
diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c
index cb176826d1cb..cb0a41e83582 100644
--- a/arch/arm/mach-davinci/board-dm646x-evm.c
+++ b/arch/arm/mach-davinci/board-dm646x-evm.c
@@ -23,13 +23,13 @@
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/platform_data/at24.h>
-#include <linux/i2c/pcf857x.h>
+#include <linux/platform_data/pcf857x.h>
#include <media/i2c/tvp514x.h>
#include <media/i2c/adv7343.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/clk.h>
#include <linux/export.h>
@@ -641,7 +641,7 @@ static struct vpif_subdev_info vpif_capture_sdev_info[] = {
},
};
-static const struct vpif_input dm6467_ch0_inputs[] = {
+static struct vpif_input dm6467_ch0_inputs[] = {
{
.input = {
.index = 0,
@@ -656,7 +656,7 @@ static const struct vpif_input dm6467_ch0_inputs[] = {
},
};
-static const struct vpif_input dm6467_ch1_inputs[] = {
+static struct vpif_input dm6467_ch1_inputs[] = {
{
.input = {
.index = 0,
diff --git a/arch/arm/mach-davinci/board-sffsdr.c b/arch/arm/mach-davinci/board-sffsdr.c
index 41c7c9615791..d85accf7f760 100644
--- a/arch/arm/mach-davinci/board-sffsdr.c
+++ b/arch/arm/mach-davinci/board-sffsdr.c
@@ -28,7 +28,7 @@
#include <linux/i2c.h>
#include <linux/platform_data/at24.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <asm/mach-types.h>
diff --git a/arch/arm/mach-davinci/clock.c b/arch/arm/mach-davinci/clock.c
index f5dce9b4e617..f77a4f766050 100644
--- a/arch/arm/mach-davinci/clock.c
+++ b/arch/arm/mach-davinci/clock.c
@@ -218,6 +218,15 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
}
EXPORT_SYMBOL(clk_set_parent);
+struct clk *clk_get_parent(struct clk *clk)
+{
+ if (!clk)
+ return NULL;
+
+ return clk->parent;
+}
+EXPORT_SYMBOL(clk_get_parent);
+
int clk_register(struct clk *clk)
{
if (clk == NULL || IS_ERR(clk))
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index 7cf529ffbe5a..22440c05d66a 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -789,15 +789,35 @@ int __init da850_register_mmcsd1(struct davinci_mmc_config *config)
static struct resource da8xx_rproc_resources[] = {
{ /* DSP boot address */
+ .name = "host1cfg",
.start = DA8XX_SYSCFG0_BASE + DA8XX_HOST1CFG_REG,
.end = DA8XX_SYSCFG0_BASE + DA8XX_HOST1CFG_REG + 3,
.flags = IORESOURCE_MEM,
},
{ /* DSP interrupt registers */
+ .name = "chipsig",
.start = DA8XX_SYSCFG0_BASE + DA8XX_CHIPSIG_REG,
.end = DA8XX_SYSCFG0_BASE + DA8XX_CHIPSIG_REG + 7,
.flags = IORESOURCE_MEM,
},
+ { /* DSP L2 RAM */
+ .name = "l2sram",
+ .start = DA8XX_DSP_L2_RAM_BASE,
+ .end = DA8XX_DSP_L2_RAM_BASE + SZ_256K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ { /* DSP L1P RAM */
+ .name = "l1pram",
+ .start = DA8XX_DSP_L1P_RAM_BASE,
+ .end = DA8XX_DSP_L1P_RAM_BASE + SZ_32K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ { /* DSP L1D RAM */
+ .name = "l1dram",
+ .start = DA8XX_DSP_L1D_RAM_BASE,
+ .end = DA8XX_DSP_L1D_RAM_BASE + SZ_32K - 1,
+ .flags = IORESOURCE_MEM,
+ },
{ /* dsp irq */
.start = IRQ_DA8XX_CHIPINT0,
.end = IRQ_DA8XX_CHIPINT0,
@@ -814,6 +834,8 @@ static struct platform_device da8xx_dsp = {
.resource = da8xx_rproc_resources,
};
+static bool rproc_mem_inited __initdata;
+
#if IS_ENABLED(CONFIG_DA8XX_REMOTEPROC)
static phys_addr_t rproc_base __initdata;
@@ -852,6 +874,8 @@ void __init da8xx_rproc_reserve_cma(void)
ret = dma_declare_contiguous(&da8xx_dsp.dev, rproc_size, rproc_base, 0);
if (ret)
pr_err("%s: dma_declare_contiguous failed %d\n", __func__, ret);
+ else
+ rproc_mem_inited = true;
}
#else
@@ -866,6 +890,12 @@ int __init da8xx_register_rproc(void)
{
int ret;
+ if (!rproc_mem_inited) {
+ pr_warn("%s: memory not reserved for DSP, not registering DSP device\n",
+ __func__);
+ return -ENOMEM;
+ }
+
ret = platform_device_register(&da8xx_dsp);
if (ret)
pr_err("%s: can't register DSP device: %d\n", __func__, ret);
diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
index 7e464228948b..93ff1569cee5 100644
--- a/arch/arm/mach-davinci/include/mach/da8xx.h
+++ b/arch/arm/mach-davinci/include/mach/da8xx.h
@@ -75,6 +75,11 @@ extern unsigned int da850_max_speed;
#define DA8XX_VPIF_BASE 0x01e17000
#define DA8XX_GPIO_BASE 0x01e26000
#define DA8XX_PSC1_BASE 0x01e27000
+
+#define DA8XX_DSP_L2_RAM_BASE 0x11800000
+#define DA8XX_DSP_L1P_RAM_BASE (DA8XX_DSP_L2_RAM_BASE + 0x600000)
+#define DA8XX_DSP_L1D_RAM_BASE (DA8XX_DSP_L2_RAM_BASE + 0x700000)
+
#define DA8XX_AEMIF_CS2_BASE 0x60000000
#define DA8XX_AEMIF_CS3_BASE 0x62000000
#define DA8XX_AEMIF_CTL_BASE 0x68000000
diff --git a/arch/arm/mach-davinci/pdata-quirks.c b/arch/arm/mach-davinci/pdata-quirks.c
index 329f5402ad1d..4858b1cdf31b 100644
--- a/arch/arm/mach-davinci/pdata-quirks.c
+++ b/arch/arm/mach-davinci/pdata-quirks.c
@@ -33,7 +33,7 @@ static struct tvp514x_platform_data tvp5146_pdata = {
#define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
-static const struct vpif_input da850_ch0_inputs[] = {
+static struct vpif_input da850_ch0_inputs[] = {
{
.input = {
.index = 0,
@@ -48,7 +48,7 @@ static const struct vpif_input da850_ch0_inputs[] = {
},
};
-static const struct vpif_input da850_ch1_inputs[] = {
+static struct vpif_input da850_ch1_inputs[] = {
{
.input = {
.index = 0,
diff --git a/arch/arm/mach-dove/dove-db-setup.c b/arch/arm/mach-dove/dove-db-setup.c
index bcb678fd2415..8971c3c0f0fe 100644
--- a/arch/arm/mach-dove/dove-db-setup.c
+++ b/arch/arm/mach-dove/dove-db-setup.c
@@ -13,7 +13,7 @@
#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/mtd/physmap.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/timer.h>
#include <linux/ata_platform.h>
#include <linux/mv643xx_eth.h>
diff --git a/arch/arm/mach-dove/pcie.c b/arch/arm/mach-dove/pcie.c
index 91fe97144570..dfb62f3f5dcf 100644
--- a/arch/arm/mach-dove/pcie.c
+++ b/arch/arm/mach-dove/pcie.c
@@ -152,16 +152,23 @@ static void rc_pci_fixup(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL, PCI_ANY_ID, rc_pci_fixup);
-static struct pci_bus __init *
-dove_pcie_scan_bus(int nr, struct pci_sys_data *sys)
+static int __init
+dove_pcie_scan_bus(int nr, struct pci_host_bridge *bridge)
{
+ struct pci_sys_data *sys = pci_host_bridge_priv(bridge);
+
if (nr >= num_pcie_ports) {
BUG();
- return NULL;
+ return -EINVAL;
}
- return pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys,
- &sys->resources);
+ list_splice_init(&sys->resources, &bridge->windows);
+ bridge->dev.parent = NULL;
+ bridge->sysdata = sys;
+ bridge->busnr = sys->busnr;
+ bridge->ops = &pcie_ops;
+
+ return pci_scan_root_bus_bridge(bridge);
}
static int __init dove_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
diff --git a/arch/arm/mach-ep93xx/clock.c b/arch/arm/mach-ep93xx/clock.c
index 39ef3b613912..d2eee707d27f 100644
--- a/arch/arm/mach-ep93xx/clock.c
+++ b/arch/arm/mach-ep93xx/clock.c
@@ -98,6 +98,13 @@ static struct clk clk_keypad = {
.enable_mask = EP93XX_SYSCON_KEYTCHCLKDIV_KEN,
.set_rate = set_keytchclk_rate,
};
+static struct clk clk_adc = {
+ .parent = &clk_xtali,
+ .sw_locked = 1,
+ .enable_reg = EP93XX_SYSCON_KEYTCHCLKDIV,
+ .enable_mask = EP93XX_SYSCON_KEYTCHCLKDIV_TSEN,
+ .set_rate = set_keytchclk_rate,
+};
static struct clk clk_spi = {
.parent = &clk_xtali,
.rate = EP93XX_EXT_CLK_RATE,
@@ -214,6 +221,7 @@ static struct clk_lookup clocks[] = {
INIT_CK(NULL, "pll2", &clk_pll2),
INIT_CK("ohci-platform", NULL, &clk_usb_host),
INIT_CK("ep93xx-keypad", NULL, &clk_keypad),
+ INIT_CK("ep93xx-adc", NULL, &clk_adc),
INIT_CK("ep93xx-fb", NULL, &clk_video),
INIT_CK("ep93xx-spi.0", NULL, &clk_spi),
INIT_CK("ep93xx-i2s", "mclk", &clk_i2s_mclk),
@@ -475,6 +483,26 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
}
EXPORT_SYMBOL(clk_set_rate);
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+ WARN_ON(clk);
+ return 0;
+}
+EXPORT_SYMBOL(clk_round_rate);
+
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+ WARN_ON(clk);
+ return 0;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
+struct clk *clk_get_parent(struct clk *clk)
+{
+ return clk->parent;
+}
+EXPORT_SYMBOL(clk_get_parent);
+
static char fclk_divisors[] = { 1, 2, 4, 8, 16, 1, 1, 1 };
static char hclk_divisors[] = { 1, 2, 4, 5, 6, 8, 16, 32 };
diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index c393b1b0310d..f53c61813998 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -821,6 +821,30 @@ void ep93xx_ide_release_gpio(struct platform_device *pdev)
EXPORT_SYMBOL(ep93xx_ide_release_gpio);
/*************************************************************************
+ * EP93xx ADC
+ *************************************************************************/
+static struct resource ep93xx_adc_resources[] = {
+ DEFINE_RES_MEM(EP93XX_ADC_PHYS_BASE, 0x28),
+ DEFINE_RES_IRQ(IRQ_EP93XX_TOUCH),
+};
+
+static struct platform_device ep93xx_adc_device = {
+ .name = "ep93xx-adc",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(ep93xx_adc_resources),
+ .resource = ep93xx_adc_resources,
+};
+
+void __init ep93xx_register_adc(void)
+{
+ /* Power up ADC, deactivate Touch Screen Controller */
+ ep93xx_devcfg_set_clear(EP93XX_SYSCON_DEVCFG_TIN,
+ EP93XX_SYSCON_DEVCFG_ADCPD);
+
+ platform_device_register(&ep93xx_adc_device);
+}
+
+/*************************************************************************
* EP93xx Security peripheral
*************************************************************************/
diff --git a/arch/arm/mach-ep93xx/edb93xx.c b/arch/arm/mach-ep93xx/edb93xx.c
index 0ac176386789..7a7f280b07d7 100644
--- a/arch/arm/mach-ep93xx/edb93xx.c
+++ b/arch/arm/mach-ep93xx/edb93xx.c
@@ -245,6 +245,7 @@ static void __init edb93xx_init_machine(void)
edb93xx_register_pwm();
edb93xx_register_fb();
edb93xx_register_ide();
+ ep93xx_register_adc();
}
diff --git a/arch/arm/mach-ep93xx/include/mach/platform.h b/arch/arm/mach-ep93xx/include/mach/platform.h
index 4c0bbd97f741..db0839691ef5 100644
--- a/arch/arm/mach-ep93xx/include/mach/platform.h
+++ b/arch/arm/mach-ep93xx/include/mach/platform.h
@@ -52,6 +52,7 @@ int ep93xx_i2s_acquire(void);
void ep93xx_i2s_release(void);
void ep93xx_register_ac97(void);
void ep93xx_register_ide(void);
+void ep93xx_register_adc(void);
int ep93xx_ide_acquire_gpio(struct platform_device *pdev);
void ep93xx_ide_release_gpio(struct platform_device *pdev);
diff --git a/arch/arm/mach-ep93xx/snappercl15.c b/arch/arm/mach-ep93xx/snappercl15.c
index b2db791b3b38..8b29398f4dc7 100644
--- a/arch/arm/mach-ep93xx/snappercl15.c
+++ b/arch/arm/mach-ep93xx/snappercl15.c
@@ -25,7 +25,7 @@
#include <linux/fb.h>
#include <linux/mtd/partitions.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <mach/hardware.h>
#include <linux/platform_data/video-ep93xx.h>
diff --git a/arch/arm/mach-ep93xx/soc.h b/arch/arm/mach-ep93xx/soc.h
index 7bf7ff8beae7..d20e631164cf 100644
--- a/arch/arm/mach-ep93xx/soc.h
+++ b/arch/arm/mach-ep93xx/soc.h
@@ -95,6 +95,7 @@
#define EP93XX_KEY_MATRIX_PHYS_BASE EP93XX_APB_PHYS(0x000f0000)
#define EP93XX_KEY_MATRIX_BASE EP93XX_APB_IOMEM(0x000f0000)
+#define EP93XX_ADC_PHYS_BASE EP93XX_APB_PHYS(0x00100000)
#define EP93XX_ADC_BASE EP93XX_APB_IOMEM(0x00100000)
#define EP93XX_TOUCHSCREEN_BASE EP93XX_APB_IOMEM(0x00100000)
diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c
index 55b186ef863a..8745162ec05d 100644
--- a/arch/arm/mach-ep93xx/ts72xx.c
+++ b/arch/arm/mach-ep93xx/ts72xx.c
@@ -16,7 +16,7 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/io.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <mach/hardware.h>
diff --git a/arch/arm/mach-exynos/sleep.S b/arch/arm/mach-exynos/sleep.S
index cf950790fbdc..4292cae43f3c 100644
--- a/arch/arm/mach-exynos/sleep.S
+++ b/arch/arm/mach-exynos/sleep.S
@@ -124,6 +124,7 @@ _cp15_save_diag:
#endif /* CONFIG_CACHE_L2X0 */
.data
+ .align 2
.globl cp15_save_diag
cp15_save_diag:
.long 0 @ cp15 diagnostic
diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c
index 748cfb8d5212..b529ba04ed16 100644
--- a/arch/arm/mach-exynos/suspend.c
+++ b/arch/arm/mach-exynos/suspend.c
@@ -187,21 +187,20 @@ static int __init exynos_pmu_irq_init(struct device_node *node,
struct irq_domain *parent_domain, *domain;
if (!parent) {
- pr_err("%s: no parent, giving up\n", node->full_name);
+ pr_err("%pOF: no parent, giving up\n", node);
return -ENODEV;
}
parent_domain = irq_find_host(parent);
if (!parent_domain) {
- pr_err("%s: unable to obtain parent domain\n", node->full_name);
+ pr_err("%pOF: unable to obtain parent domain\n", node);
return -ENXIO;
}
pmu_base_addr = of_iomap(node, 0);
if (!pmu_base_addr) {
- pr_err("%s: failed to find exynos pmu register\n",
- node->full_name);
+ pr_err("%pOF: failed to find exynos pmu register\n", node);
return -ENOMEM;
}
diff --git a/arch/arm/mach-gemini/Kconfig b/arch/arm/mach-gemini/Kconfig
index 06c8b095154c..70106b67631c 100644
--- a/arch/arm/mach-gemini/Kconfig
+++ b/arch/arm/mach-gemini/Kconfig
@@ -1,11 +1,16 @@
menuconfig ARCH_GEMINI
bool "Cortina Systems Gemini"
depends on ARCH_MULTI_V4
+ select ARCH_HAS_RESET_CONTROLLER
+ select ARM_AMBA
select ARM_APPENDED_DTB # Old Redboot bootloaders deployed
+ select COMMON_CLK_GEMINI
select FARADAY_FTINTC010
select FTTMR010_TIMER
select GPIO_FTGPIO010
select GPIOLIB
+ select PINCTRL
+ select PINCTRL_GEMINI
select POWER_RESET
select POWER_RESET_GEMINI_POWEROFF
select POWER_RESET_SYSCON
diff --git a/arch/arm/mach-hisi/Kconfig b/arch/arm/mach-hisi/Kconfig
index a3b091a4d344..65a048fa08ec 100644
--- a/arch/arm/mach-hisi/Kconfig
+++ b/arch/arm/mach-hisi/Kconfig
@@ -39,6 +39,7 @@ config ARCH_HIP04
select HAVE_ARM_ARCH_TIMER
select MCPM if SMP
select MCPM_QUAD_CLUSTER if SMP
+ select GENERIC_IRQ_EFFECTIVE_AFF_MASK
help
Support for Hisilicon HiP04 SoC family
diff --git a/arch/arm/mach-hisi/platsmp.c b/arch/arm/mach-hisi/platsmp.c
index 91bb02dec20f..da5689ababf7 100644
--- a/arch/arm/mach-hisi/platsmp.c
+++ b/arch/arm/mach-hisi/platsmp.c
@@ -109,7 +109,7 @@ static void hix5hd2_set_scu_boot_addr(phys_addr_t start_addr, phys_addr_t jump_a
virt = ioremap(start_addr, PAGE_SIZE);
- writel_relaxed(0xe51ff004, virt); /* ldr pc, [rc, #-4] */
+ writel_relaxed(0xe51ff004, virt); /* ldr pc, [pc, #-4] */
writel_relaxed(jump_addr, virt + 4); /* pc jump phy address */
iounmap(virt);
}
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 936c59d0e18b..782699e67600 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -536,6 +536,7 @@ config SOC_IMX7D
select HAVE_IMX_ANATOP
select HAVE_IMX_MMDC
select HAVE_IMX_SRC
+ select IMX_GPCV2
help
This enables support for Freescale i.MX7 Dual processor.
diff --git a/arch/arm/mach-imx/cpu.c b/arch/arm/mach-imx/cpu.c
index b3347d32349f..94906ed49392 100644
--- a/arch/arm/mach-imx/cpu.c
+++ b/arch/arm/mach-imx/cpu.c
@@ -131,6 +131,9 @@ struct device * __init imx_soc_device_init(void)
case MXC_CPU_IMX6UL:
soc_id = "i.MX6UL";
break;
+ case MXC_CPU_IMX6ULL:
+ soc_id = "i.MX6ULL";
+ break;
case MXC_CPU_IMX7D:
soc_id = "i.MX7D";
break;
diff --git a/arch/arm/mach-imx/gpc.c b/arch/arm/mach-imx/gpc.c
index 93f584ba0130..de535cb679b3 100644
--- a/arch/arm/mach-imx/gpc.c
+++ b/arch/arm/mach-imx/gpc.c
@@ -224,13 +224,13 @@ static int __init imx_gpc_init(struct device_node *node,
int i;
if (!parent) {
- pr_err("%s: no parent, giving up\n", node->full_name);
+ pr_err("%pOF: no parent, giving up\n", node);
return -ENODEV;
}
parent_domain = irq_find_host(parent);
if (!parent_domain) {
- pr_err("%s: unable to obtain parent domain\n", node->full_name);
+ pr_err("%pOF: unable to obtain parent domain\n", node);
return -ENXIO;
}
diff --git a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
index dd75a4756761..5169dfba9718 100644
--- a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
+++ b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
@@ -245,7 +245,6 @@ static phys_addr_t mx2_camera_base __initdata;
static void __init visstrim_analog_camera_init(void)
{
struct platform_device *pdev;
- int dma;
gpio_set_value(TVP5150_PWDN, 1);
ndelay(1);
@@ -258,12 +257,9 @@ static void __init visstrim_analog_camera_init(void)
if (IS_ERR(pdev))
return;
- dma = dma_declare_coherent_memory(&pdev->dev,
- mx2_camera_base, mx2_camera_base,
- MX2_CAMERA_BUF_SIZE,
- DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
- if (!(dma & DMA_MEMORY_MAP))
- return;
+ dma_declare_coherent_memory(&pdev->dev, mx2_camera_base,
+ mx2_camera_base, MX2_CAMERA_BUF_SIZE,
+ DMA_MEMORY_EXCLUSIVE);
}
static void __init visstrim_reserve(void)
@@ -444,16 +440,13 @@ static const struct imx_ssi_platform_data visstrim_m10_ssi_pdata __initconst = {
static void __init visstrim_coda_init(void)
{
struct platform_device *pdev;
- int dma;
pdev = imx27_add_coda();
- dma = dma_declare_coherent_memory(&pdev->dev,
- mx2_camera_base + MX2_CAMERA_BUF_SIZE,
- mx2_camera_base + MX2_CAMERA_BUF_SIZE,
- MX2_CAMERA_BUF_SIZE,
- DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
- if (!(dma & DMA_MEMORY_MAP))
- return;
+ dma_declare_coherent_memory(&pdev->dev,
+ mx2_camera_base + MX2_CAMERA_BUF_SIZE,
+ mx2_camera_base + MX2_CAMERA_BUF_SIZE,
+ MX2_CAMERA_BUF_SIZE,
+ DMA_MEMORY_EXCLUSIVE);
}
/* DMA deinterlace */
@@ -466,24 +459,21 @@ static void __init visstrim_deinterlace_init(void)
{
int ret = -ENOMEM;
struct platform_device *pdev = &visstrim_deinterlace;
- int dma;
ret = platform_device_register(pdev);
- dma = dma_declare_coherent_memory(&pdev->dev,
- mx2_camera_base + 2 * MX2_CAMERA_BUF_SIZE,
- mx2_camera_base + 2 * MX2_CAMERA_BUF_SIZE,
- MX2_CAMERA_BUF_SIZE,
- DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
- if (!(dma & DMA_MEMORY_MAP))
- return;
+ dma_declare_coherent_memory(&pdev->dev,
+ mx2_camera_base + 2 * MX2_CAMERA_BUF_SIZE,
+ mx2_camera_base + 2 * MX2_CAMERA_BUF_SIZE,
+ MX2_CAMERA_BUF_SIZE,
+ DMA_MEMORY_EXCLUSIVE);
}
/* Emma-PrP for format conversion */
static void __init visstrim_emmaprp_init(void)
{
struct platform_device *pdev;
- int dma;
+ int ret;
pdev = imx27_add_mx2_emmaprp();
if (IS_ERR(pdev))
@@ -493,11 +483,11 @@ static void __init visstrim_emmaprp_init(void)
* Use the same memory area as the analog camera since both
* devices are, by nature, exclusive.
*/
- dma = dma_declare_coherent_memory(&pdev->dev,
+ ret = dma_declare_coherent_memory(&pdev->dev,
mx2_camera_base, mx2_camera_base,
MX2_CAMERA_BUF_SIZE,
- DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
- if (!(dma & DMA_MEMORY_MAP))
+ DMA_MEMORY_EXCLUSIVE);
+ if (ret)
pr_err("Failed to declare memory for emmaprp\n");
}
diff --git a/arch/arm/mach-imx/mach-mx31moboard.c b/arch/arm/mach-imx/mach-mx31moboard.c
index bde9a9af6714..7716f83aecdd 100644
--- a/arch/arm/mach-imx/mach-mx31moboard.c
+++ b/arch/arm/mach-imx/mach-mx31moboard.c
@@ -475,7 +475,7 @@ static phys_addr_t mx3_camera_base __initdata;
static int __init mx31moboard_init_cam(void)
{
- int dma, ret = -ENOMEM;
+ int ret;
struct platform_device *pdev;
imx31_add_ipu_core();
@@ -484,11 +484,11 @@ static int __init mx31moboard_init_cam(void)
if (IS_ERR(pdev))
return PTR_ERR(pdev);
- dma = dma_declare_coherent_memory(&pdev->dev,
- mx3_camera_base, mx3_camera_base,
- MX3_CAMERA_BUF_SIZE,
- DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
- if (!(dma & DMA_MEMORY_MAP))
+ ret = dma_declare_coherent_memory(&pdev->dev,
+ mx3_camera_base, mx3_camera_base,
+ MX3_CAMERA_BUF_SIZE,
+ DMA_MEMORY_EXCLUSIVE);
+ if (ret)
goto err;
ret = platform_device_add(pdev);
diff --git a/arch/arm/mach-imx/mach-qong.c b/arch/arm/mach-imx/mach-qong.c
index 8c2cbd693d21..42a700053103 100644
--- a/arch/arm/mach-imx/mach-qong.c
+++ b/arch/arm/mach-imx/mach-qong.c
@@ -18,7 +18,7 @@
#include <linux/memory.h>
#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/gpio.h>
#include <asm/mach-types.h>
diff --git a/arch/arm/mach-imx/mxc.h b/arch/arm/mach-imx/mxc.h
index 34f2ff62583c..e00d6260c3df 100644
--- a/arch/arm/mach-imx/mxc.h
+++ b/arch/arm/mach-imx/mxc.h
@@ -39,6 +39,7 @@
#define MXC_CPU_IMX6SX 0x62
#define MXC_CPU_IMX6Q 0x63
#define MXC_CPU_IMX6UL 0x64
+#define MXC_CPU_IMX6ULL 0x65
#define MXC_CPU_IMX7D 0x72
#define IMX_DDR_TYPE_LPDDR2 1
@@ -73,6 +74,11 @@ static inline bool cpu_is_imx6ul(void)
return __mxc_cpu_type == MXC_CPU_IMX6UL;
}
+static inline bool cpu_is_imx6ull(void)
+{
+ return __mxc_cpu_type == MXC_CPU_IMX6ULL;
+}
+
static inline bool cpu_is_imx6q(void)
{
return __mxc_cpu_type == MXC_CPU_IMX6Q;
diff --git a/arch/arm/mach-imx/pm-imx6.c b/arch/arm/mach-imx/pm-imx6.c
index e61b1d1027e1..ecdf071653d4 100644
--- a/arch/arm/mach-imx/pm-imx6.c
+++ b/arch/arm/mach-imx/pm-imx6.c
@@ -295,7 +295,8 @@ int imx6_set_lpm(enum mxc_cpu_pwr_mode mode)
val &= ~BM_CLPCR_SBYOS;
if (cpu_is_imx6sl())
val |= BM_CLPCR_BYPASS_PMIC_READY;
- if (cpu_is_imx6sl() || cpu_is_imx6sx() || cpu_is_imx6ul())
+ if (cpu_is_imx6sl() || cpu_is_imx6sx() || cpu_is_imx6ul() ||
+ cpu_is_imx6ull())
val |= BM_CLPCR_BYP_MMDC_CH0_LPM_HS;
else
val |= BM_CLPCR_BYP_MMDC_CH1_LPM_HS;
@@ -312,7 +313,8 @@ int imx6_set_lpm(enum mxc_cpu_pwr_mode mode)
val |= BM_CLPCR_SBYOS;
if (cpu_is_imx6sl() || cpu_is_imx6sx())
val |= BM_CLPCR_BYPASS_PMIC_READY;
- if (cpu_is_imx6sl() || cpu_is_imx6sx() || cpu_is_imx6ul())
+ if (cpu_is_imx6sl() || cpu_is_imx6sx() || cpu_is_imx6ul() ||
+ cpu_is_imx6ull())
val |= BM_CLPCR_BYP_MMDC_CH0_LPM_HS;
else
val |= BM_CLPCR_BYP_MMDC_CH1_LPM_HS;
diff --git a/arch/arm/mach-iop13xx/pci.c b/arch/arm/mach-iop13xx/pci.c
index 204eb4460271..070d92ae1b6f 100644
--- a/arch/arm/mach-iop13xx/pci.c
+++ b/arch/arm/mach-iop13xx/pci.c
@@ -504,10 +504,10 @@ iop13xx_pci_abort(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
/* Scan an IOP13XX PCI bus. nr selects which ATU we use.
*/
-struct pci_bus *iop13xx_scan_bus(int nr, struct pci_sys_data *sys)
+int iop13xx_scan_bus(int nr, struct pci_host_bridge *bridge)
{
- int which_atu;
- struct pci_bus *bus = NULL;
+ int which_atu, ret;
+ struct pci_sys_data *sys = pci_host_bridge_priv(bridge);
switch (init_atu) {
case IOP13XX_INIT_ATU_ATUX:
@@ -525,9 +525,14 @@ struct pci_bus *iop13xx_scan_bus(int nr, struct pci_sys_data *sys)
if (!which_atu) {
BUG();
- return NULL;
+ return -ENODEV;
}
+ list_splice_init(&sys->resources, &bridge->windows);
+ bridge->dev.parent = NULL;
+ bridge->sysdata = sys;
+ bridge->busnr = sys->busnr;
+
switch (which_atu) {
case IOP13XX_INIT_ATU_ATUX:
if (time_after_eq(jiffies + msecs_to_jiffies(1000),
@@ -535,18 +540,22 @@ struct pci_bus *iop13xx_scan_bus(int nr, struct pci_sys_data *sys)
while(time_before(jiffies, atux_trhfa_timeout))
udelay(100);
- bus = pci_bus_atux = pci_scan_root_bus(NULL, sys->busnr,
- &iop13xx_atux_ops,
- sys, &sys->resources);
+ bridge->ops = &iop13xx_atux_ops;
+ ret = pci_scan_root_bus_bridge(bridge);
+ if (!ret)
+ pci_bus_atux = bridge->bus;
break;
case IOP13XX_INIT_ATU_ATUE:
- bus = pci_bus_atue = pci_scan_root_bus(NULL, sys->busnr,
- &iop13xx_atue_ops,
- sys, &sys->resources);
+ bridge->ops = &iop13xx_atue_ops;
+ ret = pci_scan_root_bus_bridge(bridge);
+ if (!ret)
+ pci_bus_atue = bridge->bus;
break;
+ default:
+ ret = -EINVAL;
}
- return bus;
+ return ret;
}
/* This function is called from iop13xx_pci_init() after assigning valid
diff --git a/arch/arm/mach-iop13xx/pci.h b/arch/arm/mach-iop13xx/pci.h
index 71b9c57e1fde..8dc343cb887a 100644
--- a/arch/arm/mach-iop13xx/pci.h
+++ b/arch/arm/mach-iop13xx/pci.h
@@ -11,9 +11,10 @@ extern size_t iop13xx_atue_mem_size;
extern size_t iop13xx_atux_mem_size;
struct pci_sys_data;
+struct pci_host_bridge;
struct hw_pci;
int iop13xx_pci_setup(int nr, struct pci_sys_data *sys);
-struct pci_bus *iop13xx_scan_bus(int nr, struct pci_sys_data *);
+int iop13xx_scan_bus(int nr, struct pci_host_bridge *bridge);
void iop13xx_atu_select(struct hw_pci *plat_pci);
void iop13xx_pci_init(void);
void iop13xx_map_pci_memory(void);
diff --git a/arch/arm/mach-ixp4xx/include/mach/io.h b/arch/arm/mach-ixp4xx/include/mach/io.h
index 7a0c13bf4269..844e8ac593e2 100644
--- a/arch/arm/mach-ixp4xx/include/mach/io.h
+++ b/arch/arm/mach-ixp4xx/include/mach/io.h
@@ -95,8 +95,10 @@ static inline void __indirect_writeb(u8 value, volatile void __iomem *p)
}
static inline void __indirect_writesb(volatile void __iomem *bus_addr,
- const u8 *vaddr, int count)
+ const void *p, int count)
{
+ const u8 *vaddr = p;
+
while (count--)
writeb(*vaddr++, bus_addr);
}
@@ -118,8 +120,10 @@ static inline void __indirect_writew(u16 value, volatile void __iomem *p)
}
static inline void __indirect_writesw(volatile void __iomem *bus_addr,
- const u16 *vaddr, int count)
+ const void *p, int count)
{
+ const u16 *vaddr = p;
+
while (count--)
writew(*vaddr++, bus_addr);
}
@@ -137,8 +141,9 @@ static inline void __indirect_writel(u32 value, volatile void __iomem *p)
}
static inline void __indirect_writesl(volatile void __iomem *bus_addr,
- const u32 *vaddr, int count)
+ const void *p, int count)
{
+ const u32 *vaddr = p;
while (count--)
writel(*vaddr++, bus_addr);
}
@@ -160,8 +165,10 @@ static inline u8 __indirect_readb(const volatile void __iomem *p)
}
static inline void __indirect_readsb(const volatile void __iomem *bus_addr,
- u8 *vaddr, u32 count)
+ void *p, u32 count)
{
+ u8 *vaddr = p;
+
while (count--)
*vaddr++ = readb(bus_addr);
}
@@ -183,8 +190,10 @@ static inline u16 __indirect_readw(const volatile void __iomem *p)
}
static inline void __indirect_readsw(const volatile void __iomem *bus_addr,
- u16 *vaddr, u32 count)
+ void *p, u32 count)
{
+ u16 *vaddr = p;
+
while (count--)
*vaddr++ = readw(bus_addr);
}
@@ -204,8 +213,10 @@ static inline u32 __indirect_readl(const volatile void __iomem *p)
}
static inline void __indirect_readsl(const volatile void __iomem *bus_addr,
- u32 *vaddr, u32 count)
+ void *p, u32 count)
{
+ u32 *vaddr = p;
+
while (count--)
*vaddr++ = readl(bus_addr);
}
@@ -523,8 +534,15 @@ static inline void iowrite32_rep(void __iomem *addr, const void *vaddr,
#endif
}
-#define ioport_map(port, nr) ((void __iomem*)(port + PIO_OFFSET))
-#define ioport_unmap(addr)
+#define ioport_map(port, nr) ioport_map(port, nr)
+static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
+{
+ return ((void __iomem*)((port) + PIO_OFFSET));
+}
+#define ioport_unmap(addr) ioport_unmap(addr)
+static inline void ioport_unmap(void __iomem *addr)
+{
+}
#endif /* CONFIG_PCI */
#endif /* __ASM_ARM_ARCH_IO_H */
diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c
index 508c2d7786e2..93b89291c06b 100644
--- a/arch/arm/mach-ixp4xx/ixdp425-setup.c
+++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c
@@ -17,7 +17,7 @@
#include <linux/i2c-gpio.h>
#include <linux/io.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/delay.h>
#include <linux/gpio.h>
diff --git a/arch/arm/mach-lpc32xx/phy3250.c b/arch/arm/mach-lpc32xx/phy3250.c
index 6c52bd32610e..e48cc06c2aec 100644
--- a/arch/arm/mach-lpc32xx/phy3250.c
+++ b/arch/arm/mach-lpc32xx/phy3250.c
@@ -137,6 +137,9 @@ static void pl08x_put_signal(const struct pl08x_channel_data *cd, int ch)
}
static struct pl08x_platform_data pl08x_pd = {
+ /* Some reasonable memcpy defaults */
+ .memcpy_burst_size = PL08X_BURST_SZ_256,
+ .memcpy_bus_width = PL08X_BUS_WIDTH_32_BITS,
.slave_channels = &pl08x_slave_channels[0],
.num_slave_channels = ARRAY_SIZE(pl08x_slave_channels),
.get_xfer_signal = pl08x_get_signal,
diff --git a/arch/arm/mach-mediatek/mediatek.c b/arch/arm/mach-mediatek/mediatek.c
index a6e3c98b95ed..6910b4e0d913 100644
--- a/arch/arm/mach-mediatek/mediatek.c
+++ b/arch/arm/mach-mediatek/mediatek.c
@@ -30,6 +30,7 @@ static void __init mediatek_timer_init(void)
if (of_machine_is_compatible("mediatek,mt6589") ||
of_machine_is_compatible("mediatek,mt7623") ||
+ of_machine_is_compatible("mediatek,mt7623a") ||
of_machine_is_compatible("mediatek,mt8135") ||
of_machine_is_compatible("mediatek,mt8127")) {
/* turn on GPT6 which ungates arch timer clocks */
@@ -41,7 +42,7 @@ static void __init mediatek_timer_init(void)
}
of_clk_init(NULL);
- clocksource_probe();
+ timer_probe();
};
static const char * const mediatek_board_dt_compat[] = {
@@ -49,6 +50,7 @@ static const char * const mediatek_board_dt_compat[] = {
"mediatek,mt6589",
"mediatek,mt6592",
"mediatek,mt7623",
+ "mediatek,mt7623a",
"mediatek,mt8127",
"mediatek,mt8135",
NULL,
diff --git a/arch/arm/mach-mediatek/platsmp.c b/arch/arm/mach-mediatek/platsmp.c
index 726eb69bb655..27d78c945caf 100644
--- a/arch/arm/mach-mediatek/platsmp.c
+++ b/arch/arm/mach-mediatek/platsmp.c
@@ -59,6 +59,7 @@ static const struct of_device_id mtk_tz_smp_boot_infos[] __initconst = {
static const struct of_device_id mtk_smp_boot_infos[] __initconst = {
{ .compatible = "mediatek,mt6589", .data = &mtk_mt6589_boot },
{ .compatible = "mediatek,mt7623", .data = &mtk_mt7623_boot },
+ { .compatible = "mediatek,mt7623a", .data = &mtk_mt7623_boot },
};
static void __iomem *mtk_smp_base;
diff --git a/arch/arm/mach-meson/Kconfig b/arch/arm/mach-meson/Kconfig
index b6e3acc63e14..ee30511849ca 100644
--- a/arch/arm/mach-meson/Kconfig
+++ b/arch/arm/mach-meson/Kconfig
@@ -21,6 +21,7 @@ config MACH_MESON8
bool "Amlogic Meson8 SoCs support"
default ARCH_MESON
select MESON6_TIMER
+ select COMMON_CLK_MESON8B
config MACH_MESON8B
bool "Amlogic Meson8b SoCs support"
diff --git a/arch/arm/mach-mmp/aspenite.c b/arch/arm/mach-mmp/aspenite.c
index 5db0edf716dd..d2283009a5ff 100644
--- a/arch/arm/mach-mmp/aspenite.c
+++ b/arch/arm/mach-mmp/aspenite.c
@@ -16,7 +16,7 @@
#include <linux/smc91x.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/interrupt.h>
#include <linux/platform_data/mv_usb.h>
diff --git a/arch/arm/mach-mmp/devices.c b/arch/arm/mach-mmp/devices.c
index 3330ac7cfbef..671c7a09ab3d 100644
--- a/arch/arm/mach-mmp/devices.c
+++ b/arch/arm/mach-mmp/devices.c
@@ -238,7 +238,7 @@ void pxa_usb_phy_deinit(void __iomem *phy_reg)
#endif
#if IS_ENABLED(CONFIG_USB_SUPPORT)
-static u64 usb_dma_mask = ~(u32)0;
+static u64 __maybe_unused usb_dma_mask = ~(u32)0;
#if IS_ENABLED(CONFIG_USB_MV_UDC)
struct resource pxa168_u2o_resources[] = {
diff --git a/arch/arm/mach-moxart/Kconfig b/arch/arm/mach-moxart/Kconfig
index 70db2abf6163..a4a91f9a3301 100644
--- a/arch/arm/mach-moxart/Kconfig
+++ b/arch/arm/mach-moxart/Kconfig
@@ -4,7 +4,7 @@ menuconfig ARCH_MOXART
select CPU_FA526
select ARM_DMA_MEM_BUFFERABLE
select FARADAY_FTINTC010
- select MOXART_TIMER
+ select FTTMR010_TIMER
select GPIOLIB
select PHYLIB if NETDEVICES
help
diff --git a/arch/arm/mach-mv78xx0/pcie.c b/arch/arm/mach-mv78xx0/pcie.c
index 81ff4327a962..636d84b40466 100644
--- a/arch/arm/mach-mv78xx0/pcie.c
+++ b/arch/arm/mach-mv78xx0/pcie.c
@@ -194,16 +194,22 @@ static void rc_pci_fixup(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL, PCI_ANY_ID, rc_pci_fixup);
-static struct pci_bus __init *
-mv78xx0_pcie_scan_bus(int nr, struct pci_sys_data *sys)
+static int __init mv78xx0_pcie_scan_bus(int nr, struct pci_host_bridge *bridge)
{
+ struct pci_sys_data *sys = pci_host_bridge_priv(bridge);
+
if (nr >= num_pcie_ports) {
BUG();
- return NULL;
+ return -EINVAL;
}
- return pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys,
- &sys->resources);
+ list_splice_init(&sys->resources, &bridge->windows);
+ bridge->dev.parent = NULL;
+ bridge->sysdata = sys;
+ bridge->busnr = sys->busnr;
+ bridge->ops = &pcie_ops;
+
+ return pci_scan_root_bus_bridge(bridge);
}
static int __init mv78xx0_pcie_map_irq(const struct pci_dev *dev, u8 slot,
diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig
index 541647f57192..9b49867154bf 100644
--- a/arch/arm/mach-mvebu/Kconfig
+++ b/arch/arm/mach-mvebu/Kconfig
@@ -60,6 +60,8 @@ config MACH_ARMADA_38X
select ARM_ERRATA_720789
select ARM_ERRATA_753970
select ARM_GIC
+ select ARM_GLOBAL_TIMER
+ select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
select ARMADA_370_XP_IRQ
select ARMADA_38X_CLK
select HAVE_ARM_SCU
diff --git a/arch/arm/mach-mvebu/kirkwood.c b/arch/arm/mach-mvebu/kirkwood.c
index 7d9f2fd9e450..0aa88105d46e 100644
--- a/arch/arm/mach-mvebu/kirkwood.c
+++ b/arch/arm/mach-mvebu/kirkwood.c
@@ -107,8 +107,7 @@ static void __init kirkwood_dt_eth_fixup(void)
clk_prepare_enable(clk);
/* store MAC address register contents in local-mac-address */
- pr_err(FW_INFO "%s: local-mac-address is not set\n",
- np->full_name);
+ pr_err(FW_INFO "%pOF: local-mac-address is not set\n", np);
pmac = kzalloc(sizeof(*pmac) + 6, GFP_KERNEL);
if (!pmac)
diff --git a/arch/arm/mach-mvebu/platsmp.c b/arch/arm/mach-mvebu/platsmp.c
index e62273aacb43..4ffbbd217e82 100644
--- a/arch/arm/mach-mvebu/platsmp.c
+++ b/arch/arm/mach-mvebu/platsmp.c
@@ -211,7 +211,7 @@ static int mv98dx3236_resume_set_cpu_boot_addr(int hw_cpu, void *boot_addr)
return PTR_ERR(base);
writel(0, base + MV98DX3236_CPU_RESUME_CTRL_REG);
- writel(virt_to_phys(boot_addr), base + MV98DX3236_CPU_RESUME_ADDR_REG);
+ writel(__pa_symbol(boot_addr), base + MV98DX3236_CPU_RESUME_ADDR_REG);
iounmap(base);
diff --git a/arch/arm/mach-omap1/board-ams-delta.c b/arch/arm/mach-omap1/board-ams-delta.c
index 6613a6ff5dbc..6cbc69c92913 100644
--- a/arch/arm/mach-omap1/board-ams-delta.c
+++ b/arch/arm/mach-omap1/board-ams-delta.c
@@ -510,6 +510,7 @@ static void __init ams_delta_init(void)
static void modem_pm(struct uart_port *port, unsigned int state, unsigned old)
{
struct modem_private_data *priv = port->private_data;
+ int ret;
if (IS_ERR(priv->regulator))
return;
@@ -518,9 +519,16 @@ static void modem_pm(struct uart_port *port, unsigned int state, unsigned old)
return;
if (state == 0)
- regulator_enable(priv->regulator);
+ ret = regulator_enable(priv->regulator);
else if (old == 0)
- regulator_disable(priv->regulator);
+ ret = regulator_disable(priv->regulator);
+ else
+ ret = 0;
+
+ if (ret)
+ dev_warn(port->dev,
+ "ams_delta modem_pm: failed to %sable regulator: %d\n",
+ state ? "dis" : "en", ret);
}
static struct plat_serial8250_port ams_delta_modem_ports[] = {
diff --git a/arch/arm/mach-omap1/board-fsample.c b/arch/arm/mach-omap1/board-fsample.c
index fad95b74bb65..b93ad58b0a63 100644
--- a/arch/arm/mach-omap1/board-fsample.c
+++ b/arch/arm/mach-omap1/board-fsample.c
@@ -16,7 +16,7 @@
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/input.h>
diff --git a/arch/arm/mach-omap1/board-h2-mmc.c b/arch/arm/mach-omap1/board-h2-mmc.c
index 357be2debc9d..91bda9c802ff 100644
--- a/arch/arm/mach-omap1/board-h2-mmc.c
+++ b/arch/arm/mach-omap1/board-h2-mmc.c
@@ -14,7 +14,7 @@
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/platform_data/gpio-omap.h>
-#include <linux/i2c/tps65010.h>
+#include <linux/mfd/tps65010.h>
#include "board-h2.h"
#include "mmc.h"
diff --git a/arch/arm/mach-omap1/board-h2.c b/arch/arm/mach-omap1/board-h2.c
index 675254ee4b1e..6a38c7603064 100644
--- a/arch/arm/mach-omap1/board-h2.c
+++ b/arch/arm/mach-omap1/board-h2.c
@@ -24,11 +24,11 @@
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/input.h>
-#include <linux/i2c/tps65010.h>
+#include <linux/mfd/tps65010.h>
#include <linux/smc91x.h>
#include <linux/omapfb.h>
#include <linux/platform_data/gpio-omap.h>
diff --git a/arch/arm/mach-omap1/board-h3-mmc.c b/arch/arm/mach-omap1/board-h3-mmc.c
index 4f58bfa5e754..692c267a9a90 100644
--- a/arch/arm/mach-omap1/board-h3-mmc.c
+++ b/arch/arm/mach-omap1/board-h3-mmc.c
@@ -14,7 +14,7 @@
#include <linux/gpio.h>
#include <linux/platform_device.h>
-#include <linux/i2c/tps65010.h>
+#include <linux/mfd/tps65010.h>
#include "common.h"
#include "board-h3.h"
diff --git a/arch/arm/mach-omap1/board-h3.c b/arch/arm/mach-omap1/board-h3.c
index e62f9d454f10..302260583e8e 100644
--- a/arch/arm/mach-omap1/board-h3.c
+++ b/arch/arm/mach-omap1/board-h3.c
@@ -23,12 +23,12 @@
#include <linux/workqueue.h>
#include <linux/i2c.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/input.h>
#include <linux/spi/spi.h>
-#include <linux/i2c/tps65010.h>
+#include <linux/mfd/tps65010.h>
#include <linux/smc91x.h>
#include <linux/omapfb.h>
#include <linux/platform_data/gpio-omap.h>
diff --git a/arch/arm/mach-omap1/board-nand.c b/arch/arm/mach-omap1/board-nand.c
index 7684f9203474..1bffbb4e050f 100644
--- a/arch/arm/mach-omap1/board-nand.c
+++ b/arch/arm/mach-omap1/board-nand.c
@@ -16,7 +16,7 @@
#include <linux/kernel.h>
#include <linux/io.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include "common.h"
diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c
index ee8d9f553db4..06243c0b12d2 100644
--- a/arch/arm/mach-omap1/board-nokia770.c
+++ b/arch/arm/mach-omap1/board-nokia770.c
@@ -233,10 +233,10 @@ static struct platform_device nokia770_cbus_device = {
static struct i2c_board_info nokia770_i2c_board_info_2[] __initdata = {
{
- I2C_BOARD_INFO("retu-mfd", 0x01),
+ I2C_BOARD_INFO("retu", 0x01),
},
{
- I2C_BOARD_INFO("tahvo-mfd", 0x02),
+ I2C_BOARD_INFO("tahvo", 0x02),
},
};
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c
index 4dfb99504810..d579f4e04137 100644
--- a/arch/arm/mach-omap1/board-osk.c
+++ b/arch/arm/mach-omap1/board-osk.c
@@ -38,7 +38,7 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
-#include <linux/i2c/tps65010.h>
+#include <linux/mfd/tps65010.h>
#include <linux/platform_data/gpio-omap.h>
#include <linux/platform_data/omap1_bl.h>
@@ -441,13 +441,11 @@ static struct spi_board_info __initdata mistral_boardinfo[] = { {
.chip_select = 0,
} };
-#ifdef CONFIG_PM
static irqreturn_t
osk_mistral_wake_interrupt(int irq, void *ignored)
{
return IRQ_HANDLED;
}
-#endif
static void __init osk_mistral_init(void)
{
@@ -515,7 +513,6 @@ static void __init osk_mistral_init(void)
gpio_direction_input(OMAP_MPUIO(2));
irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
-#ifdef CONFIG_PM
/* share the IRQ in case someone wants to use the
* button for more than wakeup from system sleep.
*/
@@ -529,7 +526,6 @@ static void __init osk_mistral_init(void)
ret);
} else
enable_irq_wake(irq);
-#endif
} else
printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
diff --git a/arch/arm/mach-omap1/board-perseus2.c b/arch/arm/mach-omap1/board-perseus2.c
index 150b57ba42bf..e994a78bdd09 100644
--- a/arch/arm/mach-omap1/board-perseus2.c
+++ b/arch/arm/mach-omap1/board-perseus2.c
@@ -16,7 +16,7 @@
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/input.h>
diff --git a/arch/arm/mach-omap1/dma.c b/arch/arm/mach-omap1/dma.c
index c821c1d5610e..52d7eda1adec 100644
--- a/arch/arm/mach-omap1/dma.c
+++ b/arch/arm/mach-omap1/dma.c
@@ -240,7 +240,6 @@ static void omap1_show_dma_caps(void)
w |= 1 << 3;
dma_write(w, GSCR, 0);
}
- return;
}
static unsigned configure_dma_errata(void)
@@ -339,10 +338,8 @@ static int __init omap1_system_dma_init(void)
goto exit_iounmap;
}
- d = kzalloc(sizeof(struct omap_dma_dev_attr), GFP_KERNEL);
+ d = kzalloc(sizeof(*d), GFP_KERNEL);
if (!d) {
- dev_err(&pdev->dev, "%s: Unable to allocate 'd' for %s\n",
- __func__, pdev->name);
ret = -ENOMEM;
goto exit_iounmap;
}
diff --git a/arch/arm/mach-omap1/timer.c b/arch/arm/mach-omap1/timer.c
index 06c5ba7574a5..8fb1ec6fa999 100644
--- a/arch/arm/mach-omap1/timer.c
+++ b/arch/arm/mach-omap1/timer.c
@@ -3,7 +3,7 @@
*
* Contains first level initialization routines which internally
* generates timer device information and registers with linux
- * device model. It also has low level function to chnage the timer
+ * device model. It also has a low level function to change the timer
* input clock source.
*
* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
@@ -134,8 +134,6 @@ static int __init omap1_dm_timer_init(void)
pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
if (!pdata) {
- dev_err(&pdev->dev, "%s: Failed to allocate pdata.\n",
- __func__);
ret = -ENOMEM;
goto err_free_pdata;
}
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 0465338183c7..e31a5a22e171 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -87,6 +87,7 @@ config SOC_DRA7XX
select OMAP_INTERCONNECT_BARRIER
select PM_OPP if PM
select ZONE_DMA if ARM_LPAE
+ select PINCTRL_TI_IODELAY if OF && PINCTRL
config ARCH_OMAP2PLUS
bool
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index c89757abb0ae..b3b3b3a19183 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -8,7 +8,7 @@ ccflags-y := -I$(srctree)/$(src)/include \
# Common support
obj-y := id.o io.o control.o devices.o fb.o timer.o pm.o \
common.o dma.o wd_timer.o display.o i2c.o hdq1w.o omap_hwmod.o \
- omap_device.o omap-headsmp.o sram.o drm.o
+ omap_device.o omap-headsmp.o sram.o
hwmod-common = omap_hwmod.o omap_hwmod_reset.o \
omap_hwmod_common_data.o
@@ -69,7 +69,6 @@ obj-$(CONFIG_ARCH_OMAP2) += sdrc2xxx.o
# OPP table initialization
ifeq ($(CONFIG_PM_OPP),y)
-obj-y += opp.o
obj-$(CONFIG_ARCH_OMAP3) += opp3xxx_data.o
obj-$(CONFIG_ARCH_OMAP4) += opp4xxx_data.o
endif
@@ -220,9 +219,6 @@ obj-$(CONFIG_ARCH_OMAP4) += omap_hwmod_44xx_data.o
obj-$(CONFIG_SOC_OMAP5) += omap_hwmod_54xx_data.o
obj-$(CONFIG_SOC_DRA7XX) += omap_hwmod_7xx_data.o
-# EMU peripherals
-obj-$(CONFIG_HW_PERF_EVENTS) += pmu.o
-
# OMAP2420 MSDI controller integration support ("MMC")
obj-$(CONFIG_SOC_OMAP2420) += msdi.o
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index dc9e34e670a2..6c61ecc62905 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -28,11 +28,12 @@ static const struct of_device_id omap_dt_match_table[] __initconst = {
{ }
};
-static void __init omap_generic_init(void)
+static void __init __maybe_unused omap_generic_init(void)
{
pdata_quirks_init(omap_dt_match_table);
omapdss_init_of();
+ omap_soc_device_init();
}
#ifdef CONFIG_SOC_OMAP2420
@@ -312,6 +313,7 @@ MACHINE_END
#ifdef CONFIG_SOC_DRA7XX
static const char *const dra74x_boards_compat[] __initconst = {
+ "ti,dra762",
"ti,am5728",
"ti,am5726",
"ti,dra742",
diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c
index 91272db09fa3..20f25539d572 100644
--- a/arch/arm/mach-omap2/board-n8x0.c
+++ b/arch/arm/mach-omap2/board-n8x0.c
@@ -53,14 +53,12 @@ static u32 board_caps;
static void board_check_revision(void)
{
- if (of_have_populated_dt()) {
- if (of_machine_is_compatible("nokia,n800"))
- board_caps = NOKIA_N800;
- else if (of_machine_is_compatible("nokia,n810"))
- board_caps = NOKIA_N810;
- else if (of_machine_is_compatible("nokia,n810-wimax"))
- board_caps = NOKIA_N810_WIMAX;
- }
+ if (of_machine_is_compatible("nokia,n800"))
+ board_caps = NOKIA_N800;
+ else if (of_machine_is_compatible("nokia,n810"))
+ board_caps = NOKIA_N810;
+ else if (of_machine_is_compatible("nokia,n810-wimax"))
+ board_caps = NOKIA_N810_WIMAX;
if (!board_caps)
pr_err("Unknown board\n");
diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c
index b79b1ca9aee9..518926410b62 100644
--- a/arch/arm/mach-omap2/clockdomain.c
+++ b/arch/arm/mach-omap2/clockdomain.c
@@ -1224,6 +1224,14 @@ ccd_exit:
return 0;
}
+u32 clkdm_xlate_address(struct clockdomain *clkdm)
+{
+ if (arch_clkdm->clkdm_xlate_address)
+ return arch_clkdm->clkdm_xlate_address(clkdm);
+
+ return 0;
+}
+
/**
* clkdm_hwmod_enable - add an enabled downstream hwmod to this clkdm
* @clkdm: struct clockdomain *
diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h
index 24667a5a9dc0..827f01e2d0af 100644
--- a/arch/arm/mach-omap2/clockdomain.h
+++ b/arch/arm/mach-omap2/clockdomain.h
@@ -175,6 +175,7 @@ struct clkdm_ops {
void (*clkdm_deny_idle)(struct clockdomain *clkdm);
int (*clkdm_clk_enable)(struct clockdomain *clkdm);
int (*clkdm_clk_disable)(struct clockdomain *clkdm);
+ u32 (*clkdm_xlate_address)(struct clockdomain *clkdm);
};
int clkdm_register_platform_funcs(struct clkdm_ops *co);
@@ -213,6 +214,7 @@ int clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk);
int clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk);
int clkdm_hwmod_enable(struct clockdomain *clkdm, struct omap_hwmod *oh);
int clkdm_hwmod_disable(struct clockdomain *clkdm, struct omap_hwmod *oh);
+u32 clkdm_xlate_address(struct clockdomain *clkdm);
extern void __init omap242x_clockdomains_init(void);
extern void __init omap243x_clockdomains_init(void);
diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h
index de75cbcdc9d1..e833984cc85e 100644
--- a/arch/arm/mach-omap2/cm.h
+++ b/arch/arm/mach-omap2/cm.h
@@ -24,8 +24,11 @@
# ifndef __ASSEMBLER__
#include <linux/clk/ti.h>
-extern void __iomem *cm_base;
-extern void __iomem *cm2_base;
+
+#include "prcm-common.h"
+
+extern struct omap_domain_base cm_base;
+extern struct omap_domain_base cm2_base;
extern void omap2_set_globals_cm(void __iomem *cm, void __iomem *cm2);
# endif
diff --git a/arch/arm/mach-omap2/cm2xxx_3xxx.h b/arch/arm/mach-omap2/cm2xxx_3xxx.h
index 72928a3ce2aa..aa148cd57cc1 100644
--- a/arch/arm/mach-omap2/cm2xxx_3xxx.h
+++ b/arch/arm/mach-omap2/cm2xxx_3xxx.h
@@ -52,12 +52,12 @@
static inline u32 omap2_cm_read_mod_reg(s16 module, u16 idx)
{
- return readl_relaxed(cm_base + module + idx);
+ return readl_relaxed(cm_base.va + module + idx);
}
static inline void omap2_cm_write_mod_reg(u32 val, s16 module, u16 idx)
{
- writel_relaxed(val, cm_base + module + idx);
+ writel_relaxed(val, cm_base.va + module + idx);
}
/* Read-modify-write a register in a CM module. Caller must lock */
diff --git a/arch/arm/mach-omap2/cm33xx.c b/arch/arm/mach-omap2/cm33xx.c
index 6f2d0aec0513..a9e08d89104e 100644
--- a/arch/arm/mach-omap2/cm33xx.c
+++ b/arch/arm/mach-omap2/cm33xx.c
@@ -50,13 +50,13 @@
/* Read a register in a CM instance */
static inline u32 am33xx_cm_read_reg(u16 inst, u16 idx)
{
- return readl_relaxed(cm_base + inst + idx);
+ return readl_relaxed(cm_base.va + inst + idx);
}
/* Write into a register in a CM */
static inline void am33xx_cm_write_reg(u32 val, u16 inst, u16 idx)
{
- writel_relaxed(val, cm_base + inst + idx);
+ writel_relaxed(val, cm_base.va + inst + idx);
}
/* Read-modify-write a register in CM */
diff --git a/arch/arm/mach-omap2/cm3xxx.c b/arch/arm/mach-omap2/cm3xxx.c
index 55b046a719dc..961bc478b9de 100644
--- a/arch/arm/mach-omap2/cm3xxx.c
+++ b/arch/arm/mach-omap2/cm3xxx.c
@@ -669,7 +669,8 @@ static struct cm_ll_data omap3xxx_cm_ll_data = {
int __init omap3xxx_cm_init(const struct omap_prcm_init_data *data)
{
- omap2_clk_legacy_provider_init(TI_CLKM_CM, cm_base + OMAP3430_IVA2_MOD);
+ omap2_clk_legacy_provider_init(TI_CLKM_CM, cm_base.va +
+ OMAP3430_IVA2_MOD);
return cm_register(&omap3xxx_cm_ll_data);
}
diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c
index bbe41f4c9dc8..d555791cf349 100644
--- a/arch/arm/mach-omap2/cm_common.c
+++ b/arch/arm/mach-omap2/cm_common.c
@@ -32,10 +32,10 @@ static struct cm_ll_data null_cm_ll_data;
static struct cm_ll_data *cm_ll_data = &null_cm_ll_data;
/* cm_base: base virtual address of the CM IP block */
-void __iomem *cm_base;
+struct omap_domain_base cm_base;
/* cm2_base: base virtual address of the CM2 IP block (OMAP44xx only) */
-void __iomem *cm2_base;
+struct omap_domain_base cm2_base;
#define CM_NO_CLOCKS 0x1
#define CM_SINGLE_INSTANCE 0x2
@@ -49,8 +49,8 @@ void __iomem *cm2_base;
*/
void __init omap2_set_globals_cm(void __iomem *cm, void __iomem *cm2)
{
- cm_base = cm;
- cm2_base = cm2;
+ cm_base.va = cm;
+ cm2_base.va = cm2;
}
/**
@@ -315,27 +315,34 @@ int __init omap2_cm_base_init(void)
struct device_node *np;
const struct of_device_id *match;
struct omap_prcm_init_data *data;
- void __iomem *mem;
+ struct resource res;
+ int ret;
+ struct omap_domain_base *mem = NULL;
for_each_matching_node_and_match(np, omap_cm_dt_match_table, &match) {
data = (struct omap_prcm_init_data *)match->data;
- mem = of_iomap(np, 0);
- if (!mem)
- return -ENOMEM;
+ ret = of_address_to_resource(np, 0, &res);
+ if (ret)
+ return ret;
if (data->index == TI_CLKM_CM)
- cm_base = mem + data->offset;
+ mem = &cm_base;
if (data->index == TI_CLKM_CM2)
- cm2_base = mem + data->offset;
+ mem = &cm2_base;
+
+ data->mem = ioremap(res.start, resource_size(&res));
- data->mem = mem;
+ if (mem) {
+ mem->pa = res.start + data->offset;
+ mem->va = data->mem + data->offset;
+ }
data->np = np;
if (data->init && (data->flags & CM_SINGLE_INSTANCE ||
- (cm_base && cm2_base)))
+ (cm_base.va && cm2_base.va)))
data->init(data);
}
diff --git a/arch/arm/mach-omap2/cminst44xx.c b/arch/arm/mach-omap2/cminst44xx.c
index 2ab27ade136a..8774e983bea1 100644
--- a/arch/arm/mach-omap2/cminst44xx.c
+++ b/arch/arm/mach-omap2/cminst44xx.c
@@ -55,7 +55,7 @@
#define CLKCTRL_IDLEST_INTERFACE_IDLE 0x2
#define CLKCTRL_IDLEST_DISABLED 0x3
-static void __iomem *_cm_bases[OMAP4_MAX_PRCM_PARTITIONS];
+static struct omap_domain_base _cm_bases[OMAP4_MAX_PRCM_PARTITIONS];
/**
* omap_cm_base_init - Populates the cm partitions
@@ -65,10 +65,11 @@ static void __iomem *_cm_bases[OMAP4_MAX_PRCM_PARTITIONS];
*/
static void omap_cm_base_init(void)
{
- _cm_bases[OMAP4430_PRM_PARTITION] = prm_base;
- _cm_bases[OMAP4430_CM1_PARTITION] = cm_base;
- _cm_bases[OMAP4430_CM2_PARTITION] = cm2_base;
- _cm_bases[OMAP4430_PRCM_MPU_PARTITION] = prcm_mpu_base;
+ memcpy(&_cm_bases[OMAP4430_PRM_PARTITION], &prm_base, sizeof(prm_base));
+ memcpy(&_cm_bases[OMAP4430_CM1_PARTITION], &cm_base, sizeof(cm_base));
+ memcpy(&_cm_bases[OMAP4430_CM2_PARTITION], &cm2_base, sizeof(cm2_base));
+ memcpy(&_cm_bases[OMAP4430_PRCM_MPU_PARTITION], &prcm_mpu_base,
+ sizeof(prcm_mpu_base));
}
/* Private functions */
@@ -116,8 +117,8 @@ static u32 omap4_cminst_read_inst_reg(u8 part, u16 inst, u16 idx)
{
BUG_ON(part >= OMAP4_MAX_PRCM_PARTITIONS ||
part == OMAP4430_INVALID_PRCM_PARTITION ||
- !_cm_bases[part]);
- return readl_relaxed(_cm_bases[part] + inst + idx);
+ !_cm_bases[part].va);
+ return readl_relaxed(_cm_bases[part].va + inst + idx);
}
/* Write into a register in a CM instance */
@@ -125,8 +126,8 @@ static void omap4_cminst_write_inst_reg(u32 val, u8 part, u16 inst, u16 idx)
{
BUG_ON(part >= OMAP4_MAX_PRCM_PARTITIONS ||
part == OMAP4430_INVALID_PRCM_PARTITION ||
- !_cm_bases[part]);
- writel_relaxed(val, _cm_bases[part] + inst + idx);
+ !_cm_bases[part].va);
+ writel_relaxed(val, _cm_bases[part].va + inst + idx);
}
/* Read-modify-write a register in CM1. Caller must lock */
@@ -475,6 +476,14 @@ static int omap4_clkdm_clk_disable(struct clockdomain *clkdm)
return 0;
}
+static u32 omap4_clkdm_xlate_address(struct clockdomain *clkdm)
+{
+ u32 addr = _cm_bases[clkdm->prcm_partition].pa + clkdm->cm_inst +
+ clkdm->clkdm_offs;
+
+ return addr;
+}
+
struct clkdm_ops omap4_clkdm_operations = {
.clkdm_add_wkdep = omap4_clkdm_add_wkup_sleep_dep,
.clkdm_del_wkdep = omap4_clkdm_del_wkup_sleep_dep,
@@ -490,6 +499,7 @@ struct clkdm_ops omap4_clkdm_operations = {
.clkdm_deny_idle = omap4_clkdm_deny_idle,
.clkdm_clk_enable = omap4_clkdm_clk_enable,
.clkdm_clk_disable = omap4_clkdm_clk_disable,
+ .clkdm_xlate_address = omap4_clkdm_xlate_address,
};
struct clkdm_ops am43xx_clkdm_operations = {
@@ -499,6 +509,7 @@ struct clkdm_ops am43xx_clkdm_operations = {
.clkdm_deny_idle = omap4_clkdm_deny_idle,
.clkdm_clk_enable = omap4_clkdm_clk_enable,
.clkdm_clk_disable = omap4_clkdm_clk_disable,
+ .clkdm_xlate_address = omap4_clkdm_xlate_address,
};
static struct cm_ll_data omap4xxx_cm_ll_data = {
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index 8cc6338fcb12..b5ad7fcb80ed 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -29,7 +29,7 @@
#include <linux/irq.h>
#include <linux/delay.h>
#include <linux/i2c.h>
-#include <linux/i2c/twl.h>
+#include <linux/mfd/twl.h>
#include <linux/i2c-omap.h>
#include <linux/reboot.h>
#include <linux/irqchip/irq-omap-intc.h>
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 473951203104..93057fb65f44 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -36,130 +36,6 @@
#define L3_MODULES_MAX_LEN 12
#define L3_MODULES 3
-static int __init omap3_l3_init(void)
-{
- struct omap_hwmod *oh;
- struct platform_device *pdev;
- char oh_name[L3_MODULES_MAX_LEN];
-
- /*
- * To avoid code running on other OMAPs in
- * multi-omap builds
- */
- if (!(cpu_is_omap34xx()) || of_have_populated_dt())
- return -ENODEV;
-
- snprintf(oh_name, L3_MODULES_MAX_LEN, "l3_main");
-
- oh = omap_hwmod_lookup(oh_name);
-
- if (!oh)
- pr_err("could not look up %s\n", oh_name);
-
- pdev = omap_device_build("omap_l3_smx", 0, oh, NULL, 0);
-
- WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
-
- return PTR_ERR_OR_ZERO(pdev);
-}
-omap_postcore_initcall(omap3_l3_init);
-
-static inline void omap_init_sti(void) {}
-
-#if IS_ENABLED(CONFIG_SPI_OMAP24XX)
-
-#include <linux/platform_data/spi-omap2-mcspi.h>
-
-static int __init omap_mcspi_init(struct omap_hwmod *oh, void *unused)
-{
- struct platform_device *pdev;
- char *name = "omap2_mcspi";
- struct omap2_mcspi_platform_config *pdata;
- static int spi_num;
- struct omap2_mcspi_dev_attr *mcspi_attrib = oh->dev_attr;
-
- pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
- if (!pdata) {
- pr_err("Memory allocation for McSPI device failed\n");
- return -ENOMEM;
- }
-
- pdata->num_cs = mcspi_attrib->num_chipselect;
- switch (oh->class->rev) {
- case OMAP2_MCSPI_REV:
- case OMAP3_MCSPI_REV:
- pdata->regs_offset = 0;
- break;
- case OMAP4_MCSPI_REV:
- pdata->regs_offset = OMAP4_MCSPI_REG_OFFSET;
- break;
- default:
- pr_err("Invalid McSPI Revision value\n");
- kfree(pdata);
- return -EINVAL;
- }
-
- spi_num++;
- pdev = omap_device_build(name, spi_num, oh, pdata, sizeof(*pdata));
- WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s\n",
- name, oh->name);
- kfree(pdata);
- return 0;
-}
-
-static void omap_init_mcspi(void)
-{
- omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL);
-}
-
-#else
-static inline void omap_init_mcspi(void) {}
-#endif
-
-/**
- * omap_init_rng - bind the RNG hwmod to the RNG omap_device
- *
- * Bind the RNG hwmod to the RNG omap_device. No return value.
- */
-static void __init omap_init_rng(void)
-{
- struct omap_hwmod *oh;
- struct platform_device *pdev;
-
- oh = omap_hwmod_lookup("rng");
- if (!oh)
- return;
-
- pdev = omap_device_build("omap_rng", -1, oh, NULL, 0);
- WARN(IS_ERR(pdev), "Can't build omap_device for omap_rng\n");
-}
-
-static void __init omap_init_sham(void)
-{
- struct omap_hwmod *oh;
- struct platform_device *pdev;
-
- oh = omap_hwmod_lookup("sham");
- if (!oh)
- return;
-
- pdev = omap_device_build("omap-sham", -1, oh, NULL, 0);
- WARN(IS_ERR(pdev), "Can't build omap_device for omap-sham\n");
-}
-
-static void __init omap_init_aes(void)
-{
- struct omap_hwmod *oh;
- struct platform_device *pdev;
-
- oh = omap_hwmod_lookup("aes");
- if (!oh)
- return;
-
- pdev = omap_device_build("omap-aes", -1, oh, NULL, 0);
- WARN(IS_ERR(pdev), "Can't build omap_device for omap-aes\n");
-}
-
/*-------------------------------------------------------------------------*/
#if IS_ENABLED(CONFIG_VIDEO_OMAP2_VOUT)
@@ -185,54 +61,3 @@ int __init omap_init_vout(void)
#else
int __init omap_init_vout(void) { return 0; }
#endif
-
-/*-------------------------------------------------------------------------*/
-
-static int __init omap2_init_devices(void)
-{
- /* Enable dummy states for those platforms without pinctrl support */
- if (!of_have_populated_dt())
- pinctrl_provide_dummies();
-
- /* If dtb is there, the devices will be created dynamically */
- if (!of_have_populated_dt()) {
- /*
- * please keep these calls, and their implementations above,
- * in alphabetical order so they're easier to sort through.
- */
- omap_init_mcspi();
- omap_init_sham();
- omap_init_aes();
- omap_init_rng();
- }
- omap_init_sti();
-
- return 0;
-}
-omap_arch_initcall(omap2_init_devices);
-
-static int __init omap_gpmc_init(void)
-{
- struct omap_hwmod *oh;
- struct platform_device *pdev;
- char *oh_name = "gpmc";
-
- /*
- * if the board boots up with a populated DT, do not
- * manually add the device from this initcall
- */
- if (of_have_populated_dt())
- return -ENODEV;
-
- oh = omap_hwmod_lookup(oh_name);
- if (!oh) {
- pr_err("Could not look up %s\n", oh_name);
- return -ENODEV;
- }
-
- pdev = omap_device_build("omap-gpmc", -1, oh, NULL, 0);
- WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
-
- return PTR_ERR_OR_ZERO(pdev);
-}
-omap_postcore_initcall(omap_gpmc_init);
diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index 8fa01c0ecdb2..b3f6eb5d04a2 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -66,6 +66,7 @@
*/
#define FRAMEDONE_IRQ_TIMEOUT 100
+#if defined(CONFIG_FB_OMAP2)
static struct platform_device omap_display_device = {
.name = "omapdss",
.id = -1,
@@ -163,6 +164,65 @@ static enum omapdss_version __init omap_display_get_version(void)
return OMAPDSS_VER_UNKNOWN;
}
+static int __init omapdss_init_fbdev(void)
+{
+ static struct omap_dss_board_info board_data = {
+ .dsi_enable_pads = omap_dsi_enable_pads,
+ .dsi_disable_pads = omap_dsi_disable_pads,
+ .set_min_bus_tput = omap_dss_set_min_bus_tput,
+ };
+ struct device_node *node;
+ int r;
+
+ board_data.version = omap_display_get_version();
+ if (board_data.version == OMAPDSS_VER_UNKNOWN) {
+ pr_err("DSS not supported on this SoC\n");
+ return -ENODEV;
+ }
+
+ omap_display_device.dev.platform_data = &board_data;
+
+ r = platform_device_register(&omap_display_device);
+ if (r < 0) {
+ pr_err("Unable to register omapdss device\n");
+ return r;
+ }
+
+ /* create vrfb device */
+ r = omap_init_vrfb();
+ if (r < 0) {
+ pr_err("Unable to register omapvrfb device\n");
+ return r;
+ }
+
+ /* create FB device */
+ r = omap_init_fb();
+ if (r < 0) {
+ pr_err("Unable to register omapfb device\n");
+ return r;
+ }
+
+ /* create V4L2 display device */
+ r = omap_init_vout();
+ if (r < 0) {
+ pr_err("Unable to register omap_vout device\n");
+ return r;
+ }
+
+ /* add DSI info for omap4 */
+ node = of_find_node_by_name(NULL, "omap4_padconf_global");
+ if (node)
+ omap4_dsi_mux_syscon = syscon_node_to_regmap(node);
+
+ return 0;
+}
+#else
+static inline int omapdss_init_fbdev(void)
+{
+ return 0;
+}
+#endif /* CONFIG_FB_OMAP2 */
+
static void dispc_disable_outputs(void)
{
u32 v, irq_mask = 0;
@@ -335,16 +395,9 @@ static struct device_node * __init omapdss_find_dss_of_node(void)
int __init omapdss_init_of(void)
{
int r;
- enum omapdss_version ver;
struct device_node *node;
struct platform_device *pdev;
- static struct omap_dss_board_info board_data = {
- .dsi_enable_pads = omap_dsi_enable_pads,
- .dsi_disable_pads = omap_dsi_disable_pads,
- .set_min_bus_tput = omap_dss_set_min_bus_tput,
- };
-
/* only create dss helper devices if dss is enabled in the .dts */
node = omapdss_find_dss_of_node();
@@ -354,13 +407,6 @@ int __init omapdss_init_of(void)
if (!of_device_is_available(node))
return 0;
- ver = omap_display_get_version();
-
- if (ver == OMAPDSS_VER_UNKNOWN) {
- pr_err("DSS not supported on this SoC\n");
- return -ENODEV;
- }
-
pdev = of_find_device_by_node(node);
if (!pdev) {
@@ -374,48 +420,5 @@ int __init omapdss_init_of(void)
return r;
}
- board_data.version = ver;
-
- omap_display_device.dev.platform_data = &board_data;
-
- r = platform_device_register(&omap_display_device);
- if (r < 0) {
- pr_err("Unable to register omapdss device\n");
- return r;
- }
-
- /* create DRM device */
- r = omap_init_drm();
- if (r < 0) {
- pr_err("Unable to register omapdrm device\n");
- return r;
- }
-
- /* create vrfb device */
- r = omap_init_vrfb();
- if (r < 0) {
- pr_err("Unable to register omapvrfb device\n");
- return r;
- }
-
- /* create FB device */
- r = omap_init_fb();
- if (r < 0) {
- pr_err("Unable to register omapfb device\n");
- return r;
- }
-
- /* create V4L2 display device */
- r = omap_init_vout();
- if (r < 0) {
- pr_err("Unable to register omap_vout device\n");
- return r;
- }
-
- /* add DSI info for omap4 */
- node = of_find_node_by_name(NULL, "omap4_padconf_global");
- if (node)
- omap4_dsi_mux_syscon = syscon_node_to_regmap(node);
-
- return 0;
+ return omapdss_init_fbdev();
}
diff --git a/arch/arm/mach-omap2/display.h b/arch/arm/mach-omap2/display.h
index 9a39646d4316..42ec2e99a2f4 100644
--- a/arch/arm/mach-omap2/display.h
+++ b/arch/arm/mach-omap2/display.h
@@ -26,7 +26,6 @@ struct omap_dss_dispc_dev_attr {
bool has_framedonetv_irq;
};
-int omap_init_drm(void);
int omap_init_vrfb(void);
int omap_init_fb(void);
int omap_init_vout(void);
diff --git a/arch/arm/mach-omap2/dma.c b/arch/arm/mach-omap2/dma.c
index e58c13a9bea5..694ce0939d50 100644
--- a/arch/arm/mach-omap2/dma.c
+++ b/arch/arm/mach-omap2/dma.c
@@ -204,106 +204,14 @@ static unsigned configure_dma_errata(void)
return errata;
}
-static const struct dma_slave_map omap24xx_sdma_map[] = {
- { "omap-gpmc", "rxtx", SDMA_FILTER_PARAM(4) },
- { "omap-aes", "tx", SDMA_FILTER_PARAM(9) },
- { "omap-aes", "rx", SDMA_FILTER_PARAM(10) },
- { "omap-sham", "rx", SDMA_FILTER_PARAM(13) },
- { "omap2_mcspi.2", "tx0", SDMA_FILTER_PARAM(15) },
- { "omap2_mcspi.2", "rx0", SDMA_FILTER_PARAM(16) },
- { "omap-mcbsp.3", "tx", SDMA_FILTER_PARAM(17) },
- { "omap-mcbsp.3", "rx", SDMA_FILTER_PARAM(18) },
- { "omap-mcbsp.4", "tx", SDMA_FILTER_PARAM(19) },
- { "omap-mcbsp.4", "rx", SDMA_FILTER_PARAM(20) },
- { "omap-mcbsp.5", "tx", SDMA_FILTER_PARAM(21) },
- { "omap-mcbsp.5", "rx", SDMA_FILTER_PARAM(22) },
- { "omap2_mcspi.2", "tx1", SDMA_FILTER_PARAM(23) },
- { "omap2_mcspi.2", "rx1", SDMA_FILTER_PARAM(24) },
- { "omap_i2c.1", "tx", SDMA_FILTER_PARAM(27) },
- { "omap_i2c.1", "rx", SDMA_FILTER_PARAM(28) },
- { "omap_i2c.2", "tx", SDMA_FILTER_PARAM(29) },
- { "omap_i2c.2", "rx", SDMA_FILTER_PARAM(30) },
- { "omap-mcbsp.1", "tx", SDMA_FILTER_PARAM(31) },
- { "omap-mcbsp.1", "rx", SDMA_FILTER_PARAM(32) },
- { "omap-mcbsp.2", "tx", SDMA_FILTER_PARAM(33) },
- { "omap-mcbsp.2", "rx", SDMA_FILTER_PARAM(34) },
- { "omap2_mcspi.0", "tx0", SDMA_FILTER_PARAM(35) },
- { "omap2_mcspi.0", "rx0", SDMA_FILTER_PARAM(36) },
- { "omap2_mcspi.0", "tx1", SDMA_FILTER_PARAM(37) },
- { "omap2_mcspi.0", "rx1", SDMA_FILTER_PARAM(38) },
- { "omap2_mcspi.0", "tx2", SDMA_FILTER_PARAM(39) },
- { "omap2_mcspi.0", "rx2", SDMA_FILTER_PARAM(40) },
- { "omap2_mcspi.0", "tx3", SDMA_FILTER_PARAM(41) },
- { "omap2_mcspi.0", "rx3", SDMA_FILTER_PARAM(42) },
- { "omap2_mcspi.1", "tx0", SDMA_FILTER_PARAM(43) },
- { "omap2_mcspi.1", "rx0", SDMA_FILTER_PARAM(44) },
- { "omap2_mcspi.1", "tx1", SDMA_FILTER_PARAM(45) },
- { "omap2_mcspi.1", "rx1", SDMA_FILTER_PARAM(46) },
- { "omap_hsmmc.1", "tx", SDMA_FILTER_PARAM(47) },
- { "omap_hsmmc.1", "rx", SDMA_FILTER_PARAM(48) },
- { "omap_uart.0", "tx", SDMA_FILTER_PARAM(49) },
- { "omap_uart.0", "rx", SDMA_FILTER_PARAM(50) },
- { "omap_uart.1", "tx", SDMA_FILTER_PARAM(51) },
- { "omap_uart.1", "rx", SDMA_FILTER_PARAM(52) },
- { "omap_uart.2", "tx", SDMA_FILTER_PARAM(53) },
- { "omap_uart.2", "rx", SDMA_FILTER_PARAM(54) },
- { "omap_hsmmc.0", "tx", SDMA_FILTER_PARAM(61) },
- { "omap_hsmmc.0", "rx", SDMA_FILTER_PARAM(62) },
-};
-
-static const struct dma_slave_map omap3xxx_sdma_map[] = {
- { "omap-gpmc", "rxtx", SDMA_FILTER_PARAM(4) },
- { "omap2_mcspi.2", "tx0", SDMA_FILTER_PARAM(15) },
- { "omap2_mcspi.2", "rx0", SDMA_FILTER_PARAM(16) },
- { "omap-mcbsp.3", "tx", SDMA_FILTER_PARAM(17) },
- { "omap-mcbsp.3", "rx", SDMA_FILTER_PARAM(18) },
- { "omap-mcbsp.4", "tx", SDMA_FILTER_PARAM(19) },
- { "omap-mcbsp.4", "rx", SDMA_FILTER_PARAM(20) },
- { "omap-mcbsp.5", "tx", SDMA_FILTER_PARAM(21) },
- { "omap-mcbsp.5", "rx", SDMA_FILTER_PARAM(22) },
- { "omap2_mcspi.2", "tx1", SDMA_FILTER_PARAM(23) },
- { "omap2_mcspi.2", "rx1", SDMA_FILTER_PARAM(24) },
- { "omap_i2c.3", "tx", SDMA_FILTER_PARAM(25) },
- { "omap_i2c.3", "rx", SDMA_FILTER_PARAM(26) },
- { "omap_i2c.1", "tx", SDMA_FILTER_PARAM(27) },
- { "omap_i2c.1", "rx", SDMA_FILTER_PARAM(28) },
- { "omap_i2c.2", "tx", SDMA_FILTER_PARAM(29) },
- { "omap_i2c.2", "rx", SDMA_FILTER_PARAM(30) },
- { "omap-mcbsp.1", "tx", SDMA_FILTER_PARAM(31) },
- { "omap-mcbsp.1", "rx", SDMA_FILTER_PARAM(32) },
- { "omap-mcbsp.2", "tx", SDMA_FILTER_PARAM(33) },
- { "omap-mcbsp.2", "rx", SDMA_FILTER_PARAM(34) },
- { "omap2_mcspi.0", "tx0", SDMA_FILTER_PARAM(35) },
- { "omap2_mcspi.0", "rx0", SDMA_FILTER_PARAM(36) },
- { "omap2_mcspi.0", "tx1", SDMA_FILTER_PARAM(37) },
- { "omap2_mcspi.0", "rx1", SDMA_FILTER_PARAM(38) },
- { "omap2_mcspi.0", "tx2", SDMA_FILTER_PARAM(39) },
- { "omap2_mcspi.0", "rx2", SDMA_FILTER_PARAM(40) },
- { "omap2_mcspi.0", "tx3", SDMA_FILTER_PARAM(41) },
- { "omap2_mcspi.0", "rx3", SDMA_FILTER_PARAM(42) },
- { "omap2_mcspi.1", "tx0", SDMA_FILTER_PARAM(43) },
- { "omap2_mcspi.1", "rx0", SDMA_FILTER_PARAM(44) },
- { "omap2_mcspi.1", "tx1", SDMA_FILTER_PARAM(45) },
- { "omap2_mcspi.1", "rx1", SDMA_FILTER_PARAM(46) },
- { "omap_hsmmc.1", "tx", SDMA_FILTER_PARAM(47) },
- { "omap_hsmmc.1", "rx", SDMA_FILTER_PARAM(48) },
- { "omap_uart.0", "tx", SDMA_FILTER_PARAM(49) },
- { "omap_uart.0", "rx", SDMA_FILTER_PARAM(50) },
- { "omap_uart.1", "tx", SDMA_FILTER_PARAM(51) },
- { "omap_uart.1", "rx", SDMA_FILTER_PARAM(52) },
- { "omap_uart.2", "tx", SDMA_FILTER_PARAM(53) },
- { "omap_uart.2", "rx", SDMA_FILTER_PARAM(54) },
- { "omap_hsmmc.0", "tx", SDMA_FILTER_PARAM(61) },
- { "omap_hsmmc.0", "rx", SDMA_FILTER_PARAM(62) },
- { "omap-aes", "tx", SDMA_FILTER_PARAM(65) },
- { "omap-aes", "rx", SDMA_FILTER_PARAM(66) },
- { "omap-sham", "rx", SDMA_FILTER_PARAM(69) },
- { "omap2_mcspi.3", "tx0", SDMA_FILTER_PARAM(70) },
- { "omap2_mcspi.3", "rx0", SDMA_FILTER_PARAM(71) },
- { "omap_hsmmc.2", "tx", SDMA_FILTER_PARAM(77) },
- { "omap_hsmmc.2", "rx", SDMA_FILTER_PARAM(78) },
- { "omap_uart.3", "tx", SDMA_FILTER_PARAM(81) },
- { "omap_uart.3", "rx", SDMA_FILTER_PARAM(82) },
+static const struct dma_slave_map omap24xx_sdma_dt_map[] = {
+ /* external DMA requests when tusb6010 is used */
+ { "musb-hdrc.1.auto", "dmareq0", SDMA_FILTER_PARAM(2) },
+ { "musb-hdrc.1.auto", "dmareq1", SDMA_FILTER_PARAM(3) },
+ { "musb-hdrc.1.auto", "dmareq2", SDMA_FILTER_PARAM(14) }, /* OMAP2420 only */
+ { "musb-hdrc.1.auto", "dmareq3", SDMA_FILTER_PARAM(15) }, /* OMAP2420 only */
+ { "musb-hdrc.1.auto", "dmareq4", SDMA_FILTER_PARAM(16) }, /* OMAP2420 only */
+ { "musb-hdrc.1.auto", "dmareq5", SDMA_FILTER_PARAM(64) }, /* OMAP2420 only */
};
static struct omap_system_dma_plat_info dma_plat_info __initdata = {
@@ -334,18 +242,10 @@ static int __init omap2_system_dma_init_dev(struct omap_hwmod *oh, void *unused)
p.dma_attr = (struct omap_dma_dev_attr *)oh->dev_attr;
p.errata = configure_dma_errata();
- if (!of_have_populated_dt()) {
- if (soc_is_omap24xx()) {
- p.slave_map = omap24xx_sdma_map;
- p.slavecnt = ARRAY_SIZE(omap24xx_sdma_map);
- } else if (soc_is_omap34xx() || soc_is_omap3630()) {
- p.slave_map = omap3xxx_sdma_map;
- p.slavecnt = ARRAY_SIZE(omap3xxx_sdma_map);
- } else {
- pr_err("%s: The legacy DMA map is not provided!\n",
- __func__);
- return -ENODEV;
- }
+ if (soc_is_omap24xx()) {
+ /* DMA slave map for drivers not yet converted to DT */
+ p.slave_map = omap24xx_sdma_dt_map;
+ p.slavecnt = ARRAY_SIZE(omap24xx_sdma_dt_map);
}
pdev = omap_device_build(name, 0, oh, &p, sizeof(p));
@@ -389,21 +289,7 @@ static int __init omap2_system_dma_init_dev(struct omap_hwmod *oh, void *unused)
static int __init omap2_system_dma_init(void)
{
- struct platform_device *pdev;
- int res;
-
- res = omap_hwmod_for_each_by_class("dma",
+ return omap_hwmod_for_each_by_class("dma",
omap2_system_dma_init_dev, NULL);
- if (res)
- return res;
-
- if (of_have_populated_dt())
- return res;
-
- pdev = platform_device_register_full(&omap_dma_dev_info);
- if (IS_ERR(pdev))
- return PTR_ERR(pdev);
-
- return res;
}
omap_arch_initcall(omap2_system_dma_init);
diff --git a/arch/arm/mach-omap2/drm.c b/arch/arm/mach-omap2/drm.c
deleted file mode 100644
index 44fef961bb70..000000000000
--- a/arch/arm/mach-omap2/drm.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * DRM/KMS device registration for TI OMAP platforms
- *
- * Copyright (C) 2012 Texas Instruments
- * Author: Rob Clark <rob.clark@linaro.org>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <linux/platform_data/omap_drm.h>
-
-#include "soc.h"
-#include "display.h"
-
-#if IS_ENABLED(CONFIG_DRM_OMAP)
-
-static struct omap_drm_platform_data platform_data;
-
-static struct platform_device omap_drm_device = {
- .dev = {
- .coherent_dma_mask = DMA_BIT_MASK(32),
- .platform_data = &platform_data,
- },
- .name = "omapdrm",
- .id = 0,
-};
-
-int __init omap_init_drm(void)
-{
- platform_data.omaprev = GET_OMAP_TYPE;
-
- return platform_device_register(&omap_drm_device);
-
-}
-#else
-int __init omap_init_drm(void) { return 0; }
-#endif
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index cb754c46747e..6d28aa20a7d3 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -32,120 +32,6 @@ static u16 control_devconf1_offset;
#define HSMMC_NAME_LEN 9
-static void omap_hsmmc1_before_set_reg(struct device *dev,
- int power_on, int vdd)
-{
- u32 reg, prog_io;
- struct omap_hsmmc_platform_data *mmc = dev->platform_data;
-
- if (mmc->remux)
- mmc->remux(dev, power_on);
-
- /*
- * Assume we power both OMAP VMMC1 (for CMD, CLK, DAT0..3) and the
- * card with Vcc regulator (from twl4030 or whatever). OMAP has both
- * 1.8V and 3.0V modes, controlled by the PBIAS register.
- *
- * In 8-bit modes, OMAP VMMC1A (for DAT4..7) needs a supply, which
- * is most naturally TWL VSIM; those pins also use PBIAS.
- *
- * FIXME handle VMMC1A as needed ...
- */
- if (power_on) {
- if (cpu_is_omap2430()) {
- reg = omap_ctrl_readl(OMAP243X_CONTROL_DEVCONF1);
- if ((1 << vdd) >= MMC_VDD_30_31)
- reg |= OMAP243X_MMC1_ACTIVE_OVERWRITE;
- else
- reg &= ~OMAP243X_MMC1_ACTIVE_OVERWRITE;
- omap_ctrl_writel(reg, OMAP243X_CONTROL_DEVCONF1);
- }
-
- if (mmc->internal_clock) {
- reg = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
- reg |= OMAP2_MMCSDIO1ADPCLKISEL;
- omap_ctrl_writel(reg, OMAP2_CONTROL_DEVCONF0);
- }
-
- reg = omap_ctrl_readl(control_pbias_offset);
- if (cpu_is_omap3630()) {
- /* Set MMC I/O to 52MHz */
- prog_io = omap_ctrl_readl(OMAP343X_CONTROL_PROG_IO1);
- prog_io |= OMAP3630_PRG_SDMMC1_SPEEDCTRL;
- omap_ctrl_writel(prog_io, OMAP343X_CONTROL_PROG_IO1);
- } else {
- reg |= OMAP2_PBIASSPEEDCTRL0;
- }
- reg &= ~OMAP2_PBIASLITEPWRDNZ0;
- omap_ctrl_writel(reg, control_pbias_offset);
- } else {
- reg = omap_ctrl_readl(control_pbias_offset);
- reg &= ~OMAP2_PBIASLITEPWRDNZ0;
- omap_ctrl_writel(reg, control_pbias_offset);
- }
-}
-
-static void omap_hsmmc1_after_set_reg(struct device *dev, int power_on, int vdd)
-{
- u32 reg;
-
- /* 100ms delay required for PBIAS configuration */
- msleep(100);
-
- if (power_on) {
- reg = omap_ctrl_readl(control_pbias_offset);
- reg |= (OMAP2_PBIASLITEPWRDNZ0 | OMAP2_PBIASSPEEDCTRL0);
- if ((1 << vdd) <= MMC_VDD_165_195)
- reg &= ~OMAP2_PBIASLITEVMODE0;
- else
- reg |= OMAP2_PBIASLITEVMODE0;
- omap_ctrl_writel(reg, control_pbias_offset);
- } else {
- reg = omap_ctrl_readl(control_pbias_offset);
- reg |= (OMAP2_PBIASSPEEDCTRL0 | OMAP2_PBIASLITEPWRDNZ0 |
- OMAP2_PBIASLITEVMODE0);
- omap_ctrl_writel(reg, control_pbias_offset);
- }
-}
-
-static void hsmmc2_select_input_clk_src(struct omap_hsmmc_platform_data *mmc)
-{
- u32 reg;
-
- reg = omap_ctrl_readl(control_devconf1_offset);
- if (mmc->internal_clock)
- reg |= OMAP2_MMCSDIO2ADPCLKISEL;
- else
- reg &= ~OMAP2_MMCSDIO2ADPCLKISEL;
- omap_ctrl_writel(reg, control_devconf1_offset);
-}
-
-static void hsmmc2_before_set_reg(struct device *dev, int power_on, int vdd)
-{
- struct omap_hsmmc_platform_data *mmc = dev->platform_data;
-
- if (mmc->remux)
- mmc->remux(dev, power_on);
-
- if (power_on)
- hsmmc2_select_input_clk_src(mmc);
-}
-
-static int am35x_hsmmc2_set_power(struct device *dev, int power_on, int vdd)
-{
- struct omap_hsmmc_platform_data *mmc = dev->platform_data;
-
- if (power_on)
- hsmmc2_select_input_clk_src(mmc);
-
- return 0;
-}
-
-static int nop_mmc_set_power(struct device *dev, int power_on, int vdd)
-{
- return 0;
-}
-
static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
struct omap_hsmmc_platform_data *mmc)
{
@@ -153,106 +39,15 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
hc_name = kzalloc(sizeof(char) * (HSMMC_NAME_LEN + 1), GFP_KERNEL);
if (!hc_name) {
- pr_err("Cannot allocate memory for controller slot name\n");
kfree(hc_name);
return -ENOMEM;
}
- if (c->name)
- strncpy(hc_name, c->name, HSMMC_NAME_LEN);
- else
- snprintf(hc_name, (HSMMC_NAME_LEN + 1), "mmc%islot%i",
- c->mmc, 1);
+ snprintf(hc_name, (HSMMC_NAME_LEN + 1), "mmc%islot%i", c->mmc, 1);
mmc->name = hc_name;
mmc->caps = c->caps;
- mmc->internal_clock = !c->ext_clock;
mmc->reg_offset = 0;
- if (c->cover_only) {
- /* detect if mobile phone cover removed */
- mmc->gpio_cd = -EINVAL;
- mmc->gpio_cod = c->gpio_cd;
- } else {
- /* card detect pin on the mmc socket itself */
- mmc->gpio_cd = c->gpio_cd;
- mmc->gpio_cod = -EINVAL;
- }
- mmc->gpio_wp = c->gpio_wp;
-
- mmc->remux = c->remux;
- mmc->init_card = c->init_card;
-
- if (c->nonremovable)
- mmc->nonremovable = 1;
-
- /*
- * NOTE: MMC slots should have a Vcc regulator set up.
- * This may be from a TWL4030-family chip, another
- * controllable regulator, or a fixed supply.
- *
- * temporary HACK: ocr_mask instead of fixed supply
- */
- if (soc_is_am35xx())
- mmc->ocr_mask = MMC_VDD_165_195 |
- MMC_VDD_26_27 |
- MMC_VDD_27_28 |
- MMC_VDD_29_30 |
- MMC_VDD_30_31 |
- MMC_VDD_31_32;
- else
- mmc->ocr_mask = c->ocr_mask;
-
- if (!soc_is_am35xx())
- mmc->features |= HSMMC_HAS_PBIAS;
-
- switch (c->mmc) {
- case 1:
- if (mmc->features & HSMMC_HAS_PBIAS) {
- /* on-chip level shifting via PBIAS0/PBIAS1 */
- mmc->before_set_reg =
- omap_hsmmc1_before_set_reg;
- mmc->after_set_reg =
- omap_hsmmc1_after_set_reg;
- }
-
- if (soc_is_am35xx())
- mmc->set_power = nop_mmc_set_power;
-
- /* OMAP3630 HSMMC1 supports only 4-bit */
- if (cpu_is_omap3630() &&
- (c->caps & MMC_CAP_8_BIT_DATA)) {
- c->caps &= ~MMC_CAP_8_BIT_DATA;
- c->caps |= MMC_CAP_4_BIT_DATA;
- mmc->caps = c->caps;
- }
- break;
- case 2:
- if (soc_is_am35xx())
- mmc->set_power = am35x_hsmmc2_set_power;
-
- if (c->ext_clock)
- c->transceiver = 1;
- if (c->transceiver && (c->caps & MMC_CAP_8_BIT_DATA)) {
- c->caps &= ~MMC_CAP_8_BIT_DATA;
- c->caps |= MMC_CAP_4_BIT_DATA;
- }
- if (mmc->features & HSMMC_HAS_PBIAS) {
- /* off-chip level shifting, or none */
- mmc->before_set_reg = hsmmc2_before_set_reg;
- mmc->after_set_reg = NULL;
- }
- break;
- case 3:
- case 4:
- case 5:
- mmc->before_set_reg = NULL;
- mmc->after_set_reg = NULL;
- break;
- default:
- pr_err("MMC%d configuration not supported!\n", c->mmc);
- kfree(hc_name);
- return -ENODEV;
- }
return 0;
}
@@ -261,41 +56,20 @@ static int omap_hsmmc_done;
void omap_hsmmc_late_init(struct omap2_hsmmc_info *c)
{
struct platform_device *pdev;
- struct omap_hsmmc_platform_data *mmc_pdata;
int res;
- if (omap_hsmmc_done != 1)
+ if (omap_hsmmc_done)
return;
- omap_hsmmc_done++;
+ omap_hsmmc_done = 1;
for (; c->mmc; c++) {
- if (!c->deferred)
- continue;
-
pdev = c->pdev;
if (!pdev)
continue;
-
- mmc_pdata = pdev->dev.platform_data;
- if (!mmc_pdata)
- continue;
-
- if (c->cover_only) {
- /* detect if mobile phone cover removed */
- mmc_pdata->gpio_cd = -EINVAL;
- mmc_pdata->gpio_cod = c->gpio_cd;
- } else {
- /* card detect pin on the mmc socket itself */
- mmc_pdata->gpio_cd = c->gpio_cd;
- mmc_pdata->gpio_cod = -EINVAL;
- }
- mmc_pdata->gpio_wp = c->gpio_wp;
-
res = omap_device_register(pdev);
if (res)
- pr_err("Could not late init MMC %s\n",
- c->name);
+ pr_err("Could not late init MMC\n");
}
}
@@ -315,10 +89,8 @@ static void __init omap_hsmmc_init_one(struct omap2_hsmmc_info *hsmmcinfo,
int res;
mmc_data = kzalloc(sizeof(*mmc_data), GFP_KERNEL);
- if (!mmc_data) {
- pr_err("Cannot allocate memory for mmc device!\n");
+ if (!mmc_data)
return;
- }
res = omap_hsmmc_pdata_init(hsmmcinfo, mmc_data);
if (res < 0)
@@ -339,13 +111,6 @@ static void __init omap_hsmmc_init_one(struct omap2_hsmmc_info *hsmmcinfo,
if (oh->dev_attr != NULL) {
mmc_dev_attr = oh->dev_attr;
mmc_data->controller_flags = mmc_dev_attr->flags;
- /*
- * erratum 2.1.1.128 doesn't apply if board has
- * a transceiver is attached
- */
- if (hsmmcinfo->transceiver)
- mmc_data->controller_flags &=
- ~OMAP_HSMMC_BROKEN_MULTIBLOCK_READ;
}
pdev = platform_device_alloc(name, ctrl_nr - 1);
@@ -370,9 +135,6 @@ static void __init omap_hsmmc_init_one(struct omap2_hsmmc_info *hsmmcinfo,
hsmmcinfo->pdev = pdev;
- if (hsmmcinfo->deferred)
- goto free_mmc;
-
res = omap_device_register(pdev);
if (res) {
pr_err("Could not register od for %s\n", name);
diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h
index 69b619ddc765..af9af5094ec3 100644
--- a/arch/arm/mach-omap2/hsmmc.h
+++ b/arch/arm/mach-omap2/hsmmc.h
@@ -12,18 +12,9 @@ struct omap2_hsmmc_info {
u8 mmc; /* controller 1/2/3 */
u32 caps; /* 4/8 wires and any additional host
* capabilities OR'd (ref. linux/mmc/host.h) */
- bool transceiver; /* MMC-2 option */
- bool ext_clock; /* use external pin for input clock */
- bool cover_only; /* No card detect - just cover switch */
- bool nonremovable; /* Nonremovable e.g. eMMC */
- bool deferred; /* mmc needs a deferred probe */
int gpio_cd; /* or -EINVAL */
int gpio_wp; /* or -EINVAL */
- char *name; /* or NULL for default */
struct platform_device *pdev; /* mmc controller instance */
- int ocr_mask; /* temporary HACK */
- /* Remux (pad configuration) when powering on/off */
- void (*remux)(struct device *dev, int power_on);
/* init some special card */
void (*init_card)(struct mmc_card *card);
};
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index e2274a162b74..16cb1c195fd8 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -663,6 +663,15 @@ void __init dra7xxx_check_revision(void)
hawkeye = (idcode >> 12) & 0xffff;
rev = (idcode >> 28) & 0xff;
switch (hawkeye) {
+ case 0xbb50:
+ switch (rev) {
+ case 0:
+ default:
+ omap_revision = DRA762_REV_ES1_0;
+ break;
+ }
+ break;
+
case 0xb990:
switch (rev) {
case 0:
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 5aafb8449c40..cb5d7314cf99 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -410,7 +410,7 @@ static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data)
return omap_hwmod_set_postsetup_state(oh, *(u8 *)data);
}
-static void __init omap_hwmod_init_postsetup(void)
+static void __init __maybe_unused omap_hwmod_init_postsetup(void)
{
u8 postsetup_state;
@@ -428,7 +428,6 @@ static void __init omap_hwmod_init_postsetup(void)
static void __init __maybe_unused omap_common_late_init(void)
{
omap2_common_pm_late_init();
- omap_soc_device_init();
}
#ifdef CONFIG_SOC_OMAP2420
@@ -493,67 +492,39 @@ void __init omap3_init_early(void)
omap2_set_globals_tap(OMAP343X_CLASS, OMAP2_L4_IO_ADDRESS(0x4830A000));
omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE),
OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE));
- /* XXX: remove these once OMAP3 is DT only */
- if (!of_have_populated_dt()) {
- omap2_set_globals_control(
- OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE));
- omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE));
- omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE),
- NULL);
- }
omap2_control_base_init();
omap3xxx_check_revision();
omap3xxx_check_features();
omap2_prcm_base_init();
- /* XXX: remove these once OMAP3 is DT only */
- if (!of_have_populated_dt()) {
- omap3xxx_prm_init(NULL);
- omap3xxx_cm_init(NULL);
- }
omap3xxx_voltagedomains_init();
omap3xxx_powerdomains_init();
omap3xxx_clockdomains_init();
omap3xxx_hwmod_init();
omap_hwmod_init_postsetup();
- if (!of_have_populated_dt()) {
- omap3_control_legacy_iomap_init();
- if (soc_is_am35xx())
- omap_clk_soc_init = am35xx_clk_legacy_init;
- else if (cpu_is_omap3630())
- omap_clk_soc_init = omap36xx_clk_legacy_init;
- else if (omap_rev() == OMAP3430_REV_ES1_0)
- omap_clk_soc_init = omap3430es1_clk_legacy_init;
- else
- omap_clk_soc_init = omap3430_clk_legacy_init;
- }
}
void __init omap3430_init_early(void)
{
omap3_init_early();
- if (of_have_populated_dt())
- omap_clk_soc_init = omap3430_dt_clk_init;
+ omap_clk_soc_init = omap3430_dt_clk_init;
}
void __init omap35xx_init_early(void)
{
omap3_init_early();
- if (of_have_populated_dt())
- omap_clk_soc_init = omap3430_dt_clk_init;
+ omap_clk_soc_init = omap3430_dt_clk_init;
}
void __init omap3630_init_early(void)
{
omap3_init_early();
- if (of_have_populated_dt())
- omap_clk_soc_init = omap3630_dt_clk_init;
+ omap_clk_soc_init = omap3630_dt_clk_init;
}
void __init am35xx_init_early(void)
{
omap3_init_early();
- if (of_have_populated_dt())
- omap_clk_soc_init = am35xx_dt_clk_init;
+ omap_clk_soc_init = am35xx_dt_clk_init;
}
void __init omap3_init_late(void)
@@ -628,8 +599,7 @@ void __init ti816x_init_early(void)
ti816x_clockdomains_init();
dm816x_hwmod_init();
omap_hwmod_init_postsetup();
- if (of_have_populated_dt())
- omap_clk_soc_init = dm816x_dt_clk_init;
+ omap_clk_soc_init = dm816x_dt_clk_init;
}
#endif
@@ -785,21 +755,19 @@ int __init omap_clk_init(void)
omap2_clk_setup_ll_ops();
- if (of_have_populated_dt()) {
- ret = omap_control_init();
- if (ret)
- return ret;
+ ret = omap_control_init();
+ if (ret)
+ return ret;
- ret = omap_prcm_init();
- if (ret)
- return ret;
+ ret = omap_prcm_init();
+ if (ret)
+ return ret;
- of_clk_init(NULL);
+ of_clk_init(NULL);
- ti_dt_clk_init_retry_clks();
+ ti_dt_clk_init_retry_clks();
- ti_dt_clockdomains_setup();
- }
+ ti_dt_clockdomains_setup();
ret = omap_clk_soc_init();
diff --git a/arch/arm/mach-omap2/mcbsp.c b/arch/arm/mach-omap2/mcbsp.c
index fc04be74e064..4acc0dae27e0 100644
--- a/arch/arm/mach-omap2/mcbsp.c
+++ b/arch/arm/mach-omap2/mcbsp.c
@@ -53,73 +53,3 @@ void __init omap3_mcbsp_init_pdata_callback(
pdata->force_ick_on = omap3_mcbsp_force_ick_on;
}
-
-static int __init omap_init_mcbsp(struct omap_hwmod *oh, void *unused)
-{
- int id, count = 1;
- char *name = "omap-mcbsp";
- struct omap_hwmod *oh_device[2];
- struct omap_mcbsp_platform_data *pdata = NULL;
- struct platform_device *pdev;
-
- sscanf(oh->name, "mcbsp%d", &id);
-
- pdata = kzalloc(sizeof(struct omap_mcbsp_platform_data), GFP_KERNEL);
- if (!pdata) {
- pr_err("%s: No memory for mcbsp\n", __func__);
- return -ENOMEM;
- }
-
- pdata->reg_step = 4;
- if (oh->class->rev < MCBSP_CONFIG_TYPE2) {
- pdata->reg_size = 2;
- } else {
- pdata->reg_size = 4;
- pdata->has_ccr = true;
- }
-
- if (oh->class->rev == MCBSP_CONFIG_TYPE2) {
- /* The FIFO has 128 locations */
- pdata->buffer_size = 0x80;
- } else if (oh->class->rev == MCBSP_CONFIG_TYPE3) {
- if (id == 2)
- /* The FIFO has 1024 + 256 locations */
- pdata->buffer_size = 0x500;
- else
- /* The FIFO has 128 locations */
- pdata->buffer_size = 0x80;
- } else if (oh->class->rev == MCBSP_CONFIG_TYPE4) {
- /* The FIFO has 128 locations for all instances */
- pdata->buffer_size = 0x80;
- }
-
- if (oh->class->rev >= MCBSP_CONFIG_TYPE3)
- pdata->has_wakeup = true;
-
- oh_device[0] = oh;
-
- if (oh->dev_attr) {
- oh_device[1] = omap_hwmod_lookup((
- (struct omap_mcbsp_dev_attr *)(oh->dev_attr))->sidetone);
- pdata->force_ick_on = omap3_mcbsp_force_ick_on;
- count++;
- }
- pdev = omap_device_build_ss(name, id, oh_device, count, pdata,
- sizeof(*pdata));
- kfree(pdata);
- if (IS_ERR(pdev)) {
- pr_err("%s: Can't build omap_device for %s:%s.\n", __func__,
- name, oh->name);
- return PTR_ERR(pdev);
- }
- return 0;
-}
-
-static int __init omap2_mcbsp_init(void)
-{
- if (!of_have_populated_dt())
- omap_hwmod_for_each_by_class("mcbsp", omap_init_mcbsp, NULL);
-
- return 0;
-}
-omap_arch_initcall(omap2_mcbsp_init);
diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
index 33e4953c61a8..69df3620eca5 100644
--- a/arch/arm/mach-omap2/omap-smp.c
+++ b/arch/arm/mach-omap2/omap-smp.c
@@ -342,7 +342,7 @@ static void __init omap4_smp_prepare_cpus(unsigned int max_cpus)
c = &omap443x_cfg;
else if (soc_is_omap446x())
c = &omap446x_cfg;
- else if (soc_is_dra74x() || soc_is_omap54xx())
+ else if (soc_is_dra74x() || soc_is_omap54xx() || soc_is_dra76x())
c = &omap5_cfg;
if (!c) {
@@ -355,7 +355,7 @@ static void __init omap4_smp_prepare_cpus(unsigned int max_cpus)
cfg.startup_addr = c->startup_addr;
cfg.wakeupgen_base = omap_get_wakeupgen_base();
- if (soc_is_dra74x() || soc_is_omap54xx()) {
+ if (soc_is_dra74x() || soc_is_omap54xx() || soc_is_dra76x()) {
if ((__boot_cpu_mode & MODE_MASK) == HYP_MODE)
cfg.startup_addr = omap5_secondary_hyp_startup;
omap5_erratum_workaround_801819();
diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c
index 369f95a703ac..4bb6751864a5 100644
--- a/arch/arm/mach-omap2/omap-wakeupgen.c
+++ b/arch/arm/mach-omap2/omap-wakeupgen.c
@@ -58,6 +58,17 @@ static unsigned int irq_banks = DEFAULT_NR_REG_BANKS;
static unsigned int max_irqs = DEFAULT_IRQS;
static unsigned int omap_secure_apis;
+#ifdef CONFIG_CPU_PM
+static unsigned int wakeupgen_context[MAX_NR_REG_BANKS];
+#endif
+
+struct omap_wakeupgen_ops {
+ void (*save_context)(void);
+ void (*restore_context)(void);
+};
+
+static struct omap_wakeupgen_ops *wakeupgen_ops;
+
/*
* Static helper functions.
*/
@@ -264,6 +275,16 @@ static inline void omap5_irq_save_context(void)
}
+static inline void am43xx_irq_save_context(void)
+{
+ u32 i;
+
+ for (i = 0; i < irq_banks; i++) {
+ wakeupgen_context[i] = wakeupgen_readl(i, 0);
+ wakeupgen_writel(0, i, CPU0_ID);
+ }
+}
+
/*
* Save WakeupGen interrupt context in SAR BANK3. Restore is done by
* ROM code. WakeupGen IP is integrated along with GIC to manage the
@@ -280,11 +301,8 @@ static void irq_save_context(void)
if (!sar_base)
sar_base = omap4_get_sar_ram_base();
-
- if (soc_is_omap54xx())
- omap5_irq_save_context();
- else
- omap4_irq_save_context();
+ if (wakeupgen_ops && wakeupgen_ops->save_context)
+ wakeupgen_ops->save_context();
}
/*
@@ -306,6 +324,20 @@ static void irq_sar_clear(void)
writel_relaxed(val, sar_base + offset);
}
+static void am43xx_irq_restore_context(void)
+{
+ u32 i;
+
+ for (i = 0; i < irq_banks; i++)
+ wakeupgen_writel(wakeupgen_context[i], i, CPU0_ID);
+}
+
+static void irq_restore_context(void)
+{
+ if (wakeupgen_ops && wakeupgen_ops->restore_context)
+ wakeupgen_ops->restore_context();
+}
+
/*
* Save GIC and Wakeupgen interrupt context using secure API
* for HS/EMU devices.
@@ -319,6 +351,26 @@ static void irq_save_secure_context(void)
if (ret != API_HAL_RET_VALUE_OK)
pr_err("GIC and Wakeupgen context save failed\n");
}
+
+/* Define ops for context save and restore for each SoC */
+static struct omap_wakeupgen_ops omap4_wakeupgen_ops = {
+ .save_context = omap4_irq_save_context,
+ .restore_context = irq_sar_clear,
+};
+
+static struct omap_wakeupgen_ops omap5_wakeupgen_ops = {
+ .save_context = omap5_irq_save_context,
+ .restore_context = irq_sar_clear,
+};
+
+static struct omap_wakeupgen_ops am43xx_wakeupgen_ops = {
+ .save_context = am43xx_irq_save_context,
+ .restore_context = am43xx_irq_restore_context,
+};
+#else
+static struct omap_wakeupgen_ops omap4_wakeupgen_ops = {};
+static struct omap_wakeupgen_ops omap5_wakeupgen_ops = {};
+static struct omap_wakeupgen_ops am43xx_wakeupgen_ops = {};
#endif
#ifdef CONFIG_HOTPLUG_CPU
@@ -359,7 +411,7 @@ static int irq_notifier(struct notifier_block *self, unsigned long cmd, void *v)
break;
case CPU_CLUSTER_PM_EXIT:
if (omap_type() == OMAP2_DEVICE_TYPE_GP)
- irq_sar_clear();
+ irq_restore_context();
break;
}
return NOTIFY_OK;
@@ -470,13 +522,13 @@ static int __init wakeupgen_init(struct device_node *node,
u32 val;
if (!parent) {
- pr_err("%s: no parent, giving up\n", node->full_name);
+ pr_err("%pOF: no parent, giving up\n", node);
return -ENODEV;
}
parent_domain = irq_find_host(parent);
if (!parent_domain) {
- pr_err("%s: unable to obtain parent domain\n", node->full_name);
+ pr_err("%pOF: unable to obtain parent domain\n", node);
return -ENXIO;
}
/* Not supported on OMAP4 ES1.0 silicon */
@@ -494,9 +546,13 @@ static int __init wakeupgen_init(struct device_node *node,
irq_banks = OMAP4_NR_BANKS;
max_irqs = OMAP4_NR_IRQS;
omap_secure_apis = 1;
+ wakeupgen_ops = &omap4_wakeupgen_ops;
+ } else if (soc_is_omap54xx()) {
+ wakeupgen_ops = &omap5_wakeupgen_ops;
} else if (soc_is_am43xx()) {
irq_banks = AM43XX_NR_REG_BANKS;
max_irqs = AM43XX_IRQS;
+ wakeupgen_ops = &am43xx_wakeupgen_ops;
}
domain = irq_domain_add_hierarchy(parent_domain, 0, max_irqs,
diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c
index f989145480c8..acbede082b5b 100644
--- a/arch/arm/mach-omap2/omap_device.c
+++ b/arch/arm/mach-omap2/omap_device.c
@@ -65,7 +65,7 @@ static void _add_clkdev(struct omap_device *od, const char *clk_alias,
r = clk_get_sys(NULL, clk_name);
- if (IS_ERR(r) && of_have_populated_dt()) {
+ if (IS_ERR(r)) {
struct of_phandle_args clkspec;
clkspec.np = of_find_node_by_name(NULL, clk_name);
@@ -672,7 +672,6 @@ static int _od_suspend_noirq(struct device *dev)
if (!ret && !pm_runtime_status_suspended(dev)) {
if (pm_generic_runtime_suspend(dev) == 0) {
- pm_runtime_set_suspended(dev);
omap_device_idle(pdev);
od->flags |= OMAP_DEVICE_SUSPENDED;
}
@@ -689,15 +688,6 @@ static int _od_resume_noirq(struct device *dev)
if (od->flags & OMAP_DEVICE_SUSPENDED) {
od->flags &= ~OMAP_DEVICE_SUSPENDED;
omap_device_enable(pdev);
- /*
- * XXX: we run before core runtime pm has resumed itself. At
- * this point in time, we just restore the runtime pm state and
- * considering symmetric operations in resume, we donot expect
- * to fail. If we failed, something changed in core runtime_pm
- * framework OR some device driver messed things up, hence, WARN
- */
- WARN(pm_runtime_set_active(dev),
- "Could not set %s runtime state active\n", dev_name(dev));
pm_generic_runtime_resume(dev);
}
@@ -953,9 +943,6 @@ static int __init omap_device_late_init(void)
{
bus_for_each_dev(&platform_bus_type, NULL, NULL, omap_device_late_idle);
- WARN(!of_have_populated_dt(),
- "legacy booting deprecated, please update to boot with .dts\n");
-
return 0;
}
omap_late_initcall_sync(omap_device_late_init);
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 8bcea0d83fa0..2dbd63239c54 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -141,6 +141,7 @@
#include <linux/cpu.h>
#include <linux/of.h>
#include <linux/of_address.h>
+#include <linux/bootmem.h>
#include <asm/system_misc.h>
@@ -182,6 +183,24 @@
#define MOD_CLK_MAX_NAME_LEN 32
/**
+ * struct clkctrl_provider - clkctrl provider mapping data
+ * @addr: base address for the provider
+ * @offset: base offset for the provider
+ * @clkdm: base clockdomain for provider
+ * @node: device node associated with the provider
+ * @link: list link
+ */
+struct clkctrl_provider {
+ u32 addr;
+ u16 offset;
+ struct clockdomain *clkdm;
+ struct device_node *node;
+ struct list_head link;
+};
+
+static LIST_HEAD(clkctrl_providers);
+
+/**
* struct omap_hwmod_soc_ops - fn ptrs for some SoC-specific operations
* @enable_module: function to enable a module (via MODULEMODE)
* @disable_module: function to disable a module (via MODULEMODE)
@@ -204,6 +223,8 @@ struct omap_hwmod_soc_ops {
void (*update_context_lost)(struct omap_hwmod *oh);
int (*get_context_lost)(struct omap_hwmod *oh);
int (*disable_direct_prcm)(struct omap_hwmod *oh);
+ u32 (*xlate_clkctrl)(struct omap_hwmod *oh,
+ struct clkctrl_provider *provider);
};
/* soc_ops: adapts the omap_hwmod code to the currently-booted SoC */
@@ -690,6 +711,103 @@ static int _del_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh)
return clkdm_del_sleepdep(clkdm, init_clkdm);
}
+static const struct of_device_id ti_clkctrl_match_table[] __initconst = {
+ { .compatible = "ti,clkctrl" },
+ { }
+};
+
+static int _match_clkdm(struct clockdomain *clkdm, void *user)
+{
+ struct clkctrl_provider *provider = user;
+
+ if (clkdm_xlate_address(clkdm) == provider->addr) {
+ pr_debug("%s: Matched clkdm %s for addr %x (%s)\n", __func__,
+ clkdm->name, provider->addr,
+ provider->node->parent->name);
+ provider->clkdm = clkdm;
+
+ return -1;
+ }
+
+ return 0;
+}
+
+static int _setup_clkctrl_provider(struct device_node *np)
+{
+ const __be32 *addrp;
+ struct clkctrl_provider *provider;
+
+ provider = memblock_virt_alloc(sizeof(*provider), 0);
+ if (!provider)
+ return -ENOMEM;
+
+ addrp = of_get_address(np, 0, NULL, NULL);
+ provider->addr = (u32)of_translate_address(np, addrp);
+ provider->offset = provider->addr & 0xff;
+ provider->addr &= ~0xff;
+ provider->node = np;
+
+ clkdm_for_each(_match_clkdm, provider);
+
+ if (!provider->clkdm) {
+ pr_err("%s: nothing matched for node %s (%x)\n",
+ __func__, np->parent->name, provider->addr);
+ memblock_free_early(__pa(provider), sizeof(*provider));
+ return -EINVAL;
+ }
+
+ list_add(&provider->link, &clkctrl_providers);
+
+ return 0;
+}
+
+static int _init_clkctrl_providers(void)
+{
+ struct device_node *np;
+ int ret = 0;
+
+ for_each_matching_node(np, ti_clkctrl_match_table) {
+ ret = _setup_clkctrl_provider(np);
+ if (ret)
+ break;
+ }
+
+ return ret;
+}
+
+static u32 _omap4_xlate_clkctrl(struct omap_hwmod *oh,
+ struct clkctrl_provider *provider)
+{
+ return oh->prcm.omap4.clkctrl_offs -
+ provider->offset - provider->clkdm->clkdm_offs;
+}
+
+static struct clk *_lookup_clkctrl_clk(struct omap_hwmod *oh)
+{
+ struct clkctrl_provider *provider;
+ struct clk *clk;
+
+ if (!soc_ops.xlate_clkctrl)
+ return NULL;
+
+ list_for_each_entry(provider, &clkctrl_providers, link) {
+ if (provider->clkdm == oh->clkdm) {
+ struct of_phandle_args clkspec;
+
+ clkspec.np = provider->node;
+ clkspec.args_count = 2;
+ clkspec.args[0] = soc_ops.xlate_clkctrl(oh, provider);
+ clkspec.args[1] = 0;
+
+ clk = of_clk_get_from_provider(&clkspec);
+
+ return clk;
+ }
+ }
+
+ return NULL;
+}
+
/**
* _init_main_clk - get a struct clk * for the the hwmod's main functional clk
* @oh: struct omap_hwmod *
@@ -701,22 +819,16 @@ static int _del_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh)
static int _init_main_clk(struct omap_hwmod *oh)
{
int ret = 0;
- char name[MOD_CLK_MAX_NAME_LEN];
- struct clk *clk;
- static const char modck[] = "_mod_ck";
+ struct clk *clk = NULL;
- if (strlen(oh->name) >= MOD_CLK_MAX_NAME_LEN - strlen(modck))
- pr_warn("%s: warning: cropping name for %s\n", __func__,
- oh->name);
-
- strlcpy(name, oh->name, MOD_CLK_MAX_NAME_LEN - strlen(modck));
- strlcat(name, modck, MOD_CLK_MAX_NAME_LEN);
+ clk = _lookup_clkctrl_clk(oh);
- clk = clk_get(NULL, name);
- if (!IS_ERR(clk)) {
+ if (!IS_ERR_OR_NULL(clk)) {
+ pr_debug("%s: mapped main_clk %s for %s\n", __func__,
+ __clk_get_name(clk), oh->name);
+ oh->main_clk = __clk_get_name(clk);
oh->_clk = clk;
soc_ops.disable_direct_prcm(oh);
- oh->main_clk = kstrdup(name, GFP_KERNEL);
} else {
if (!oh->main_clk)
return 0;
@@ -1482,13 +1594,13 @@ static int _init_clkdm(struct omap_hwmod *oh)
* _init_clocks - clk_get() all clocks associated with this hwmod. Retrieve as
* well the clockdomain.
* @oh: struct omap_hwmod *
- * @data: not used; pass NULL
+ * @np: device_node mapped to this hwmod
*
* Called by omap_hwmod_setup_*() (after omap2_clk_init()).
* Resolves all clock names embedded in the hwmod. Returns 0 on
* success, or a negative error code on failure.
*/
-static int _init_clocks(struct omap_hwmod *oh, void *data)
+static int _init_clocks(struct omap_hwmod *oh, struct device_node *np)
{
int ret = 0;
@@ -2305,8 +2417,8 @@ static int __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data,
if (mem)
pr_err("omap_hwmod: %s: Could not ioremap\n", oh->name);
else
- pr_err("omap_hwmod: %s: Missing dt reg%i for %s\n",
- oh->name, index, np->full_name);
+ pr_err("omap_hwmod: %s: Missing dt reg%i for %pOF\n",
+ oh->name, index, np);
return -ENXIO;
}
@@ -2334,24 +2446,21 @@ static int __init _init(struct omap_hwmod *oh, void *data)
{
int r, index;
struct device_node *np = NULL;
+ struct device_node *bus;
if (oh->_state != _HWMOD_STATE_REGISTERED)
return 0;
- if (of_have_populated_dt()) {
- struct device_node *bus;
+ bus = of_find_node_by_name(NULL, "ocp");
+ if (!bus)
+ return -ENODEV;
- bus = of_find_node_by_name(NULL, "ocp");
- if (!bus)
- return -ENODEV;
-
- r = of_dev_hwmod_lookup(bus, oh, &index, &np);
- if (r)
- pr_debug("omap_hwmod: %s missing dt data\n", oh->name);
- else if (np && index)
- pr_warn("omap_hwmod: %s using broken dt data from %s\n",
- oh->name, np->name);
- }
+ r = of_dev_hwmod_lookup(bus, oh, &index, &np);
+ if (r)
+ pr_debug("omap_hwmod: %s missing dt data\n", oh->name);
+ else if (np && index)
+ pr_warn("omap_hwmod: %s using broken dt data from %s\n",
+ oh->name, np->name);
r = _init_mpu_rt_base(oh, NULL, index, np);
if (r < 0) {
@@ -2360,7 +2469,7 @@ static int __init _init(struct omap_hwmod *oh, void *data)
return 0;
}
- r = _init_clocks(oh, NULL);
+ r = _init_clocks(oh, np);
if (r < 0) {
WARN(1, "omap_hwmod: %s: couldn't init clocks\n", oh->name);
return -EINVAL;
@@ -3722,6 +3831,7 @@ void __init omap_hwmod_init(void)
soc_ops.update_context_lost = _omap4_update_context_lost;
soc_ops.get_context_lost = _omap4_get_context_lost;
soc_ops.disable_direct_prcm = _omap4_disable_direct_prcm;
+ soc_ops.xlate_clkctrl = _omap4_xlate_clkctrl;
} else if (cpu_is_ti814x() || cpu_is_ti816x() || soc_is_am33xx() ||
soc_is_am43xx()) {
soc_ops.enable_module = _omap4_enable_module;
@@ -3736,6 +3846,8 @@ void __init omap_hwmod_init(void)
WARN(1, "omap_hwmod: unknown SoC type\n");
}
+ _init_clkctrl_providers();
+
inited = true;
}
diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
index 1c6ca4d5fa2d..c3276436b0ae 100644
--- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
@@ -3204,8 +3204,7 @@ int __init omap3xxx_hwmod_init(void)
* If DT information is missing, enable them only for GP devices.
*/
- if (of_have_populated_dt())
- bus = of_find_node_by_name(NULL, "ocp");
+ bus = of_find_node_by_name(NULL, "ocp");
if (h_sham && omap3xxx_hwmod_is_hs_ip_block_usable(bus, "sham")) {
r = omap_hwmod_register_links(h_sham);
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index 94f09c720f29..3e2d792fd9df 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -775,6 +775,7 @@ static struct omap_hwmod_dma_info omap44xx_dss_hdmi_sdma_reqs[] = {
static struct omap_hwmod_opt_clk dss_hdmi_opt_clks[] = {
{ .role = "sys_clk", .clk = "dss_sys_clk" },
+ { .role = "hdmi_clk", .clk = "dss_48mhz_clk" },
};
static struct omap_hwmod omap44xx_dss_hdmi_hwmod = {
@@ -785,7 +786,7 @@ static struct omap_hwmod omap44xx_dss_hdmi_hwmod = {
* HDMI audio requires to use no-idle mode. Hence,
* set idle mode by software.
*/
- .flags = HWMOD_SWSUP_SIDLE,
+ .flags = HWMOD_SWSUP_SIDLE | HWMOD_OPT_CLKS_NEEDED,
.mpu_irqs = omap44xx_dss_hdmi_irqs,
.xlate_irq = omap4_xlate_irq,
.sdma_reqs = omap44xx_dss_hdmi_sdma_reqs,
@@ -858,11 +859,16 @@ static struct omap_hwmod_class omap44xx_venc_hwmod_class = {
};
/* dss_venc */
+static struct omap_hwmod_opt_clk dss_venc_opt_clks[] = {
+ { .role = "tv_clk", .clk = "dss_tv_clk" },
+};
+
static struct omap_hwmod omap44xx_dss_venc_hwmod = {
.name = "dss_venc",
.class = &omap44xx_venc_hwmod_class,
.clkdm_name = "l3_dss_clkdm",
.main_clk = "dss_tv_clk",
+ .flags = HWMOD_OPT_CLKS_NEEDED,
.prcm = {
.omap4 = {
.clkctrl_offs = OMAP4_CM_DSS_DSS_CLKCTRL_OFFSET,
@@ -870,6 +876,35 @@ static struct omap_hwmod omap44xx_dss_venc_hwmod = {
},
},
.parent_hwmod = &omap44xx_dss_hwmod,
+ .opt_clks = dss_venc_opt_clks,
+ .opt_clks_cnt = ARRAY_SIZE(dss_venc_opt_clks),
+};
+
+/* sha0 HIB2 (the 'P' (public) device) */
+static struct omap_hwmod_class_sysconfig omap44xx_sha0_sysc = {
+ .rev_offs = 0x100,
+ .sysc_offs = 0x110,
+ .syss_offs = 0x114,
+ .sysc_flags = SYSS_HAS_RESET_STATUS,
+};
+
+static struct omap_hwmod_class omap44xx_sha0_hwmod_class = {
+ .name = "sham",
+ .sysc = &omap44xx_sha0_sysc,
+};
+
+struct omap_hwmod omap44xx_sha0_hwmod = {
+ .name = "sham",
+ .class = &omap44xx_sha0_hwmod_class,
+ .clkdm_name = "l4_secure_clkdm",
+ .main_clk = "l3_div_ck",
+ .prcm = {
+ .omap4 = {
+ .clkctrl_offs = OMAP4_CM_L4SEC_SHA2MD51_CLKCTRL_OFFSET,
+ .context_offs = OMAP4_RM_L4SEC_SHA2MD51_CONTEXT_OFFSET,
+ .modulemode = MODULEMODE_SWCTRL,
+ },
+ },
};
/*
@@ -953,6 +988,103 @@ static struct omap_hwmod omap44xx_emif2_hwmod = {
};
/*
+ Crypto modules AES0/1 belong to:
+ PD_L4_PER power domain
+ CD_L4_SEC clock domain
+ On the L3, the AES modules are mapped to
+ L3_CLK2: Peripherals and multimedia sub clock domain
+*/
+static struct omap_hwmod_class_sysconfig omap44xx_aes_sysc = {
+ .rev_offs = 0x80,
+ .sysc_offs = 0x84,
+ .syss_offs = 0x88,
+ .sysc_flags = SYSS_HAS_RESET_STATUS,
+};
+
+static struct omap_hwmod_class omap44xx_aes_hwmod_class = {
+ .name = "aes",
+ .sysc = &omap44xx_aes_sysc,
+};
+
+static struct omap_hwmod omap44xx_aes1_hwmod = {
+ .name = "aes1",
+ .class = &omap44xx_aes_hwmod_class,
+ .clkdm_name = "l4_secure_clkdm",
+ .main_clk = "l3_div_ck",
+ .prcm = {
+ .omap4 = {
+ .context_offs = OMAP4_RM_L4SEC_AES1_CONTEXT_OFFSET,
+ .clkctrl_offs = OMAP4_CM_L4SEC_AES1_CLKCTRL_OFFSET,
+ .modulemode = MODULEMODE_SWCTRL,
+ },
+ },
+};
+
+static struct omap_hwmod_ocp_if omap44xx_l3_main_2__aes1 = {
+ .master = &omap44xx_l4_per_hwmod,
+ .slave = &omap44xx_aes1_hwmod,
+ .clk = "l3_div_ck",
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+static struct omap_hwmod omap44xx_aes2_hwmod = {
+ .name = "aes2",
+ .class = &omap44xx_aes_hwmod_class,
+ .clkdm_name = "l4_secure_clkdm",
+ .main_clk = "l3_div_ck",
+ .prcm = {
+ .omap4 = {
+ .context_offs = OMAP4_RM_L4SEC_AES2_CONTEXT_OFFSET,
+ .clkctrl_offs = OMAP4_CM_L4SEC_AES2_CLKCTRL_OFFSET,
+ .modulemode = MODULEMODE_SWCTRL,
+ },
+ },
+};
+
+static struct omap_hwmod_ocp_if omap44xx_l3_main_2__aes2 = {
+ .master = &omap44xx_l4_per_hwmod,
+ .slave = &omap44xx_aes2_hwmod,
+ .clk = "l3_div_ck",
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/*
+ * 'des' class for DES3DES module
+ */
+static struct omap_hwmod_class_sysconfig omap44xx_des_sysc = {
+ .rev_offs = 0x30,
+ .sysc_offs = 0x34,
+ .syss_offs = 0x38,
+ .sysc_flags = SYSS_HAS_RESET_STATUS,
+};
+
+static struct omap_hwmod_class omap44xx_des_hwmod_class = {
+ .name = "des",
+ .sysc = &omap44xx_des_sysc,
+};
+
+static struct omap_hwmod omap44xx_des_hwmod = {
+ .name = "des",
+ .class = &omap44xx_des_hwmod_class,
+ .clkdm_name = "l4_secure_clkdm",
+ .main_clk = "l3_div_ck",
+ .prcm = {
+ .omap4 = {
+ .context_offs = OMAP4_RM_L4SEC_DES3DES_CONTEXT_OFFSET,
+ .clkctrl_offs = OMAP4_CM_L4SEC_DES3DES_CLKCTRL_OFFSET,
+ .modulemode = MODULEMODE_SWCTRL,
+ },
+ },
+};
+
+struct omap_hwmod_ocp_if omap44xx_l3_main_2__des = {
+ .master = &omap44xx_l3_main_2_hwmod,
+ .slave = &omap44xx_des_hwmod,
+ .clk = "l3_div_ck",
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/*
* 'fdif' class
* face detection hw accelerator module
*/
@@ -3882,6 +4014,14 @@ static struct omap_hwmod_ocp_if omap44xx_l4_per__dss_venc = {
.user = OCP_USER_MPU,
};
+/* l3_main_2 -> sham */
+static struct omap_hwmod_ocp_if omap44xx_l3_main_2__sha0 = {
+ .master = &omap44xx_l3_main_2_hwmod,
+ .slave = &omap44xx_sha0_hwmod,
+ .clk = "l3_div_ck",
+ .user = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
/* l4_per -> elm */
static struct omap_hwmod_ocp_if omap44xx_l4_per__elm = {
.master = &omap44xx_l4_per_hwmod,
@@ -4793,6 +4933,10 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
&omap44xx_l4_abe__wd_timer3_dma,
&omap44xx_mpu__emif1,
&omap44xx_mpu__emif2,
+ &omap44xx_l3_main_2__aes1,
+ &omap44xx_l3_main_2__aes2,
+ &omap44xx_l3_main_2__des,
+ &omap44xx_l3_main_2__sha0,
NULL,
};
diff --git a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
index b3abb8d8b2f6..2f4f7002f38d 100644
--- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
@@ -839,6 +839,7 @@ static struct omap_hwmod dra7xx_gpio1_hwmod = {
.name = "gpio1",
.class = &dra7xx_gpio_hwmod_class,
.clkdm_name = "wkupaon_clkdm",
+ .flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET,
.main_clk = "wkupaon_iclk_mux",
.prcm = {
.omap4 = {
@@ -4070,6 +4071,11 @@ static struct omap_hwmod_ocp_if *dra7xx_gp_hwmod_ocp_ifs[] __initdata = {
};
/* SoC variant specific hwmod links */
+static struct omap_hwmod_ocp_if *dra76x_hwmod_ocp_ifs[] __initdata = {
+ &dra7xx_l4_per3__usb_otg_ss4,
+ NULL,
+};
+
static struct omap_hwmod_ocp_if *dra74x_hwmod_ocp_ifs[] __initdata = {
&dra7xx_l4_per3__usb_otg_ss4,
NULL,
@@ -4095,12 +4101,14 @@ int __init dra7xx_hwmod_init(void)
ret = omap_hwmod_register_links(dra74x_hwmod_ocp_ifs);
else if (!ret && soc_is_dra72x())
ret = omap_hwmod_register_links(dra72x_hwmod_ocp_ifs);
+ else if (!ret && soc_is_dra76x())
+ ret = omap_hwmod_register_links(dra76x_hwmod_ocp_ifs);
if (!ret && omap_type() == OMAP2_DEVICE_TYPE_GP)
ret = omap_hwmod_register_links(dra7xx_gp_hwmod_ocp_ifs);
- /* now for the IPs *NOT* in dra71 */
- if (!ret && !of_machine_is_compatible("ti,dra718"))
+ /* now for the IPs available only in dra74 and dra72 */
+ if (!ret && !of_machine_is_compatible("ti,dra718") && !soc_is_dra76x())
ret = omap_hwmod_register_links(dra74x_dra72x_hwmod_ocp_ifs);
return ret;
diff --git a/arch/arm/mach-omap2/omap_twl.c b/arch/arm/mach-omap2/omap_twl.c
index 1346b3ab34a5..295124b248ae 100644
--- a/arch/arm/mach-omap2/omap_twl.c
+++ b/arch/arm/mach-omap2/omap_twl.c
@@ -16,7 +16,7 @@
#include <linux/err.h>
#include <linux/io.h>
#include <linux/kernel.h>
-#include <linux/i2c/twl.h>
+#include <linux/mfd/twl.h>
#include "soc.h"
#include "voltage.h"
diff --git a/arch/arm/mach-omap2/opp.c b/arch/arm/mach-omap2/opp.c
deleted file mode 100644
index a358a07e18f2..000000000000
--- a/arch/arm/mach-omap2/opp.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * OMAP SoC specific OPP wrapper function
- *
- * Copyright (C) 2009-2010 Texas Instruments Incorporated - http://www.ti.com/
- * Nishanth Menon
- * Kevin Hilman
- * Copyright (C) 2010 Nokia Corporation.
- * Eduardo Valentin
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/pm_opp.h>
-#include <linux/cpu.h>
-
-#include "omap_device.h"
-
-#include "omap_opp_data.h"
-
-/* Temp variable to allow multiple calls */
-static u8 __initdata omap_table_init;
-
-/**
- * omap_init_opp_table() - Initialize opp table as per the CPU type
- * @opp_def: opp default list for this silicon
- * @opp_def_size: number of opp entries for this silicon
- *
- * Register the initial OPP table with the OPP library based on the CPU
- * type. This is meant to be used only by SoC specific registration.
- */
-int __init omap_init_opp_table(struct omap_opp_def *opp_def,
- u32 opp_def_size)
-{
- int i, r;
-
- if (of_have_populated_dt())
- return -EINVAL;
-
- if (!opp_def || !opp_def_size) {
- pr_err("%s: invalid params!\n", __func__);
- return -EINVAL;
- }
-
- /*
- * Initialize only if not already initialized even if the previous
- * call failed, because, no reason we'd succeed again.
- */
- if (omap_table_init)
- return -EEXIST;
- omap_table_init = 1;
-
- /* Lets now register with OPP library */
- for (i = 0; i < opp_def_size; i++, opp_def++) {
- struct omap_hwmod *oh;
- struct device *dev;
-
- if (!opp_def->hwmod_name) {
- pr_err("%s: NULL name of omap_hwmod, failing [%d].\n",
- __func__, i);
- return -EINVAL;
- }
-
- if (!strncmp(opp_def->hwmod_name, "mpu", 3)) {
- /*
- * All current OMAPs share voltage rail and
- * clock source, so CPU0 is used to represent
- * the MPU-SS.
- */
- dev = get_cpu_device(0);
- } else {
- oh = omap_hwmod_lookup(opp_def->hwmod_name);
- if (!oh || !oh->od) {
- pr_debug("%s: no hwmod or odev for %s, [%d] cannot add OPPs.\n",
- __func__, opp_def->hwmod_name, i);
- continue;
- }
- dev = &oh->od->pdev->dev;
- }
-
- r = dev_pm_opp_add(dev, opp_def->freq, opp_def->u_volt);
- if (r) {
- dev_err(dev, "%s: add OPP %ld failed for %s [%d] result=%d\n",
- __func__, opp_def->freq,
- opp_def->hwmod_name, i, r);
- } else {
- if (!opp_def->default_available)
- r = dev_pm_opp_disable(dev, opp_def->freq);
- if (r)
- dev_err(dev, "%s: disable %ld failed for %s [%d] result=%d\n",
- __func__, opp_def->freq,
- opp_def->hwmod_name, i, r);
- }
- }
-
- return 0;
-}
diff --git a/arch/arm/mach-omap2/opp3xxx_data.c b/arch/arm/mach-omap2/opp3xxx_data.c
index fc67add76444..c2d459f5b0da 100644
--- a/arch/arm/mach-omap2/opp3xxx_data.c
+++ b/arch/arm/mach-omap2/opp3xxx_data.c
@@ -83,89 +83,3 @@ struct omap_volt_data omap36xx_vddcore_volt_data[] = {
VOLT_DATA_DEFINE(OMAP3630_VDD_CORE_OPP100_UV, OMAP3630_CONTROL_FUSE_OPP100_VDD2, 0xf9, 0x16),
VOLT_DATA_DEFINE(0, 0, 0, 0),
};
-
-/* OPP data */
-
-static struct omap_opp_def __initdata omap34xx_opp_def_list[] = {
- /* MPU OPP1 */
- OPP_INITIALIZER("mpu", true, 125000000, OMAP3430_VDD_MPU_OPP1_UV),
- /* MPU OPP2 */
- OPP_INITIALIZER("mpu", true, 250000000, OMAP3430_VDD_MPU_OPP2_UV),
- /* MPU OPP3 */
- OPP_INITIALIZER("mpu", true, 500000000, OMAP3430_VDD_MPU_OPP3_UV),
- /* MPU OPP4 */
- OPP_INITIALIZER("mpu", true, 550000000, OMAP3430_VDD_MPU_OPP4_UV),
- /* MPU OPP5 */
- OPP_INITIALIZER("mpu", true, 600000000, OMAP3430_VDD_MPU_OPP5_UV),
-
- /*
- * L3 OPP1 - 41.5 MHz is disabled because: The voltage for that OPP is
- * almost the same than the one at 83MHz thus providing very little
- * gain for the power point of view. In term of energy it will even
- * increase the consumption due to the very negative performance
- * impact that frequency will do to the MPU and the whole system in
- * general.
- */
- OPP_INITIALIZER("l3_main", false, 41500000, OMAP3430_VDD_CORE_OPP1_UV),
- /* L3 OPP2 */
- OPP_INITIALIZER("l3_main", true, 83000000, OMAP3430_VDD_CORE_OPP2_UV),
- /* L3 OPP3 */
- OPP_INITIALIZER("l3_main", true, 166000000, OMAP3430_VDD_CORE_OPP3_UV),
-
- /* DSP OPP1 */
- OPP_INITIALIZER("iva", true, 90000000, OMAP3430_VDD_MPU_OPP1_UV),
- /* DSP OPP2 */
- OPP_INITIALIZER("iva", true, 180000000, OMAP3430_VDD_MPU_OPP2_UV),
- /* DSP OPP3 */
- OPP_INITIALIZER("iva", true, 360000000, OMAP3430_VDD_MPU_OPP3_UV),
- /* DSP OPP4 */
- OPP_INITIALIZER("iva", true, 400000000, OMAP3430_VDD_MPU_OPP4_UV),
- /* DSP OPP5 */
- OPP_INITIALIZER("iva", true, 430000000, OMAP3430_VDD_MPU_OPP5_UV),
-};
-
-static struct omap_opp_def __initdata omap36xx_opp_def_list[] = {
- /* MPU OPP1 - OPP50 */
- OPP_INITIALIZER("mpu", true, 300000000, OMAP3630_VDD_MPU_OPP50_UV),
- /* MPU OPP2 - OPP100 */
- OPP_INITIALIZER("mpu", true, 600000000, OMAP3630_VDD_MPU_OPP100_UV),
- /* MPU OPP3 - OPP-Turbo */
- OPP_INITIALIZER("mpu", false, 800000000, OMAP3630_VDD_MPU_OPP120_UV),
- /* MPU OPP4 - OPP-SB */
- OPP_INITIALIZER("mpu", false, 1000000000, OMAP3630_VDD_MPU_OPP1G_UV),
-
- /* L3 OPP1 - OPP50 */
- OPP_INITIALIZER("l3_main", true, 100000000, OMAP3630_VDD_CORE_OPP50_UV),
- /* L3 OPP2 - OPP100, OPP-Turbo, OPP-SB */
- OPP_INITIALIZER("l3_main", true, 200000000, OMAP3630_VDD_CORE_OPP100_UV),
-
- /* DSP OPP1 - OPP50 */
- OPP_INITIALIZER("iva", true, 260000000, OMAP3630_VDD_MPU_OPP50_UV),
- /* DSP OPP2 - OPP100 */
- OPP_INITIALIZER("iva", true, 520000000, OMAP3630_VDD_MPU_OPP100_UV),
- /* DSP OPP3 - OPP-Turbo */
- OPP_INITIALIZER("iva", false, 660000000, OMAP3630_VDD_MPU_OPP120_UV),
- /* DSP OPP4 - OPP-SB */
- OPP_INITIALIZER("iva", false, 800000000, OMAP3630_VDD_MPU_OPP1G_UV),
-};
-
-/**
- * omap3_opp_init() - initialize omap3 opp table
- */
-int __init omap3_opp_init(void)
-{
- int r = -ENODEV;
-
- if (!cpu_is_omap34xx())
- return r;
-
- if (cpu_is_omap3630())
- r = omap_init_opp_table(omap36xx_opp_def_list,
- ARRAY_SIZE(omap36xx_opp_def_list));
- else
- r = omap_init_opp_table(omap34xx_opp_def_list,
- ARRAY_SIZE(omap34xx_opp_def_list));
-
- return r;
-}
-omap_device_initcall(omap3_opp_init);
diff --git a/arch/arm/mach-omap2/opp4xxx_data.c b/arch/arm/mach-omap2/opp4xxx_data.c
index 1ef7a3e5ce4a..adea43ea1c60 100644
--- a/arch/arm/mach-omap2/opp4xxx_data.c
+++ b/arch/arm/mach-omap2/opp4xxx_data.c
@@ -63,29 +63,6 @@ struct omap_volt_data omap443x_vdd_core_volt_data[] = {
VOLT_DATA_DEFINE(0, 0, 0, 0),
};
-
-static struct omap_opp_def __initdata omap443x_opp_def_list[] = {
- /* MPU OPP1 - OPP50 */
- OPP_INITIALIZER("mpu", true, 300000000, OMAP4430_VDD_MPU_OPP50_UV),
- /* MPU OPP2 - OPP100 */
- OPP_INITIALIZER("mpu", true, 600000000, OMAP4430_VDD_MPU_OPP100_UV),
- /* MPU OPP3 - OPP-Turbo */
- OPP_INITIALIZER("mpu", true, 800000000, OMAP4430_VDD_MPU_OPPTURBO_UV),
- /* MPU OPP4 - OPP-SB */
- OPP_INITIALIZER("mpu", true, 1008000000, OMAP4430_VDD_MPU_OPPNITRO_UV),
- /* L3 OPP1 - OPP50 */
- OPP_INITIALIZER("l3_main_1", true, 100000000, OMAP4430_VDD_CORE_OPP50_UV),
- /* L3 OPP2 - OPP100, OPP-Turbo, OPP-SB */
- OPP_INITIALIZER("l3_main_1", true, 200000000, OMAP4430_VDD_CORE_OPP100_UV),
- /* IVA OPP1 - OPP50 */
- OPP_INITIALIZER("iva", true, 133000000, OMAP4430_VDD_IVA_OPP50_UV),
- /* IVA OPP2 - OPP100 */
- OPP_INITIALIZER("iva", true, 266100000, OMAP4430_VDD_IVA_OPP100_UV),
- /* IVA OPP3 - OPP-Turbo */
- OPP_INITIALIZER("iva", false, 332000000, OMAP4430_VDD_IVA_OPPTURBO_UV),
- /* TODO: add DSP, aess, fdif, gpu */
-};
-
#define OMAP4460_VDD_MPU_OPP50_UV 1025000
#define OMAP4460_VDD_MPU_OPP100_UV 1200000
#define OMAP4460_VDD_MPU_OPPTURBO_UV 1313000
@@ -122,59 +99,3 @@ struct omap_volt_data omap446x_vdd_core_volt_data[] = {
VOLT_DATA_DEFINE(OMAP4460_VDD_CORE_OPP100_OV_UV, OMAP44XX_CONTROL_FUSE_CORE_OPP100OV, 0xf9, 0x16),
VOLT_DATA_DEFINE(0, 0, 0, 0),
};
-
-static struct omap_opp_def __initdata omap446x_opp_def_list[] = {
- /* MPU OPP1 - OPP50 */
- OPP_INITIALIZER("mpu", true, 350000000, OMAP4460_VDD_MPU_OPP50_UV),
- /* MPU OPP2 - OPP100 */
- OPP_INITIALIZER("mpu", true, 700000000, OMAP4460_VDD_MPU_OPP100_UV),
- /* MPU OPP3 - OPP-Turbo */
- OPP_INITIALIZER("mpu", true, 920000000, OMAP4460_VDD_MPU_OPPTURBO_UV),
- /*
- * MPU OPP4 - OPP-Nitro + Disabled as the reference schematics
- * recommends TPS623631 - confirm and enable the opp in board file
- * XXX: May be we should enable these based on mpu capability and
- * Exception board files disable it...
- */
- OPP_INITIALIZER("mpu", false, 1200000000, OMAP4460_VDD_MPU_OPPNITRO_UV),
- /* MPU OPP4 - OPP-Nitro SpeedBin */
- OPP_INITIALIZER("mpu", false, 1500000000, OMAP4460_VDD_MPU_OPPNITRO_UV),
- /* L3 OPP1 - OPP50 */
- OPP_INITIALIZER("l3_main_1", true, 100000000, OMAP4460_VDD_CORE_OPP50_UV),
- /* L3 OPP2 - OPP100 */
- OPP_INITIALIZER("l3_main_1", true, 200000000, OMAP4460_VDD_CORE_OPP100_UV),
- /* IVA OPP1 - OPP50 */
- OPP_INITIALIZER("iva", true, 133000000, OMAP4460_VDD_IVA_OPP50_UV),
- /* IVA OPP2 - OPP100 */
- OPP_INITIALIZER("iva", true, 266100000, OMAP4460_VDD_IVA_OPP100_UV),
- /*
- * IVA OPP3 - OPP-Turbo + Disabled as the reference schematics
- * recommends Phoenix VCORE2 which can supply only 600mA - so the ones
- * above this OPP frequency, even though OMAP is capable, should be
- * enabled by board file which is sure of the chip power capability
- */
- OPP_INITIALIZER("iva", false, 332000000, OMAP4460_VDD_IVA_OPPTURBO_UV),
- /* IVA OPP4 - OPP-Nitro */
- OPP_INITIALIZER("iva", false, 430000000, OMAP4460_VDD_IVA_OPPNITRO_UV),
- /* IVA OPP5 - OPP-Nitro SpeedBin*/
- OPP_INITIALIZER("iva", false, 500000000, OMAP4460_VDD_IVA_OPPNITRO_UV),
-
- /* TODO: add DSP, aess, fdif, gpu */
-};
-
-/**
- * omap4_opp_init() - initialize omap4 opp table
- */
-int __init omap4_opp_init(void)
-{
- int r = -ENODEV;
-
- if (cpu_is_omap443x())
- r = omap_init_opp_table(omap443x_opp_def_list,
- ARRAY_SIZE(omap443x_opp_def_list));
- else if (cpu_is_omap446x())
- r = omap_init_opp_table(omap446x_opp_def_list,
- ARRAY_SIZE(omap446x_opp_def_list));
- return r;
-}
-omap_device_initcall(omap4_opp_init);
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index 9700a8ef0f16..6b433fce65a5 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -434,6 +434,26 @@ static void __init omap5_uevm_legacy_init(void)
}
#endif
+#ifdef CONFIG_SOC_DRA7XX
+static struct omap_hsmmc_platform_data dra7_hsmmc_data_mmc1;
+static struct omap_hsmmc_platform_data dra7_hsmmc_data_mmc2;
+static struct omap_hsmmc_platform_data dra7_hsmmc_data_mmc3;
+
+static void __init dra7x_evm_mmc_quirk(void)
+{
+ if (omap_rev() == DRA752_REV_ES1_1 || omap_rev() == DRA752_REV_ES1_0) {
+ dra7_hsmmc_data_mmc1.version = "rev11";
+ dra7_hsmmc_data_mmc1.max_freq = 96000000;
+
+ dra7_hsmmc_data_mmc2.version = "rev11";
+ dra7_hsmmc_data_mmc2.max_freq = 48000000;
+
+ dra7_hsmmc_data_mmc3.version = "rev11";
+ dra7_hsmmc_data_mmc3.max_freq = 48000000;
+ }
+}
+#endif
+
static struct pcs_pdata pcs_pdata;
void omap_pcs_legacy_init(int irq, void (*rearm)(void))
@@ -561,6 +581,14 @@ static struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("ti,omap4-iommu", 0x55082000, "55082000.mmu",
&omap4_iommu_pdata),
#endif
+#ifdef CONFIG_SOC_DRA7XX
+ OF_DEV_AUXDATA("ti,dra7-hsmmc", 0x4809c000, "4809c000.mmc",
+ &dra7_hsmmc_data_mmc1),
+ OF_DEV_AUXDATA("ti,dra7-hsmmc", 0x480b4000, "480b4000.mmc",
+ &dra7_hsmmc_data_mmc2),
+ OF_DEV_AUXDATA("ti,dra7-hsmmc", 0x480ad000, "480ad000.mmc",
+ &dra7_hsmmc_data_mmc3),
+#endif
/* Common auxdata */
OF_DEV_AUXDATA("pinctrl-single", 0, NULL, &pcs_pdata),
{ /* sentinel */ },
@@ -590,6 +618,9 @@ static struct pdata_init pdata_quirks[] __initdata = {
#ifdef CONFIG_SOC_OMAP5
{ "ti,omap5-uevm", omap5_uevm_legacy_init, },
#endif
+#ifdef CONFIG_SOC_DRA7XX
+ { "ti,dra7-evm", dra7x_evm_mmc_quirk, },
+#endif
{ /* sentinel */ },
};
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index 63027e60cc20..366158a54fcd 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -71,7 +71,7 @@ void omap_pm_get_oscillator(u32 *tstart, u32 *tshut)
}
#endif
-int __init omap_pm_clkdms_setup(struct clockdomain *clkdm, void *unused)
+int omap_pm_clkdms_setup(struct clockdomain *clkdm, void *unused)
{
clkdm_allow_idle(clkdm);
return 0;
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index d44e0e2f1106..841ba19d64a6 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -486,7 +486,6 @@ int __init omap3_pm_init(void)
ret = request_irq(omap_prcm_event_to_irq("io"),
_prcm_int_handle_io, IRQF_SHARED | IRQF_NO_SUSPEND, "pm_io",
omap3_pm_init);
- enable_irq(omap_prcm_event_to_irq("io"));
if (ret) {
pr_err("pm: Failed to request pm_io irq\n");
diff --git a/arch/arm/mach-omap2/pmu.c b/arch/arm/mach-omap2/pmu.c
deleted file mode 100644
index d2adfebd3b3f..000000000000
--- a/arch/arm/mach-omap2/pmu.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * OMAP2 ARM Performance Monitoring Unit (PMU) Support
- *
- * Copyright (C) 2012 Texas Instruments, Inc.
- *
- * Contacts:
- * Jon Hunter <jon-hunter@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-#include <linux/of.h>
-
-#include <asm/system_info.h>
-
-#include "soc.h"
-#include "omap_hwmod.h"
-#include "omap_device.h"
-
-static char *omap2_pmu_oh_names[] = {"mpu"};
-static char *omap3_pmu_oh_names[] = {"mpu", "debugss"};
-static char *omap4430_pmu_oh_names[] = {"l3_main_3", "l3_instr", "debugss"};
-static struct platform_device *omap_pmu_dev;
-
-/**
- * omap2_init_pmu - creates and registers PMU platform device
- * @oh_num: Number of OMAP HWMODs required to create PMU device
- * @oh_names: Array of OMAP HWMODS names required to create PMU device
- *
- * Uses OMAP HWMOD framework to create and register an ARM PMU device
- * from a list of HWMOD names passed. Currently supports OMAP2, OMAP3
- * and OMAP4 devices.
- */
-static int __init omap2_init_pmu(unsigned oh_num, char *oh_names[])
-{
- int i;
- struct omap_hwmod *oh[3];
- char *dev_name = cpu_architecture() == CPU_ARCH_ARMv6 ?
- "armv6-pmu" : "armv7-pmu";
-
- if ((!oh_num) || (oh_num > 3))
- return -EINVAL;
-
- for (i = 0; i < oh_num; i++) {
- oh[i] = omap_hwmod_lookup(oh_names[i]);
- if (!oh[i]) {
- pr_err("Could not look up %s hwmod\n", oh_names[i]);
- return -ENODEV;
- }
- }
-
- omap_pmu_dev = omap_device_build_ss(dev_name, -1, oh, oh_num, NULL, 0);
- WARN(IS_ERR(omap_pmu_dev), "Can't build omap_device for %s.\n",
- dev_name);
-
- return PTR_ERR_OR_ZERO(omap_pmu_dev);
-}
-
-static int __init omap_init_pmu(void)
-{
- unsigned oh_num;
- char **oh_names;
-
- /* XXX Remove this check when the CTI driver is available */
- if (cpu_is_omap443x()) {
- pr_info("ARM PMU: not yet supported on OMAP4430 due to missing CTI driver\n");
- return 0;
- }
-
- if (of_have_populated_dt())
- return 0;
-
- /*
- * To create an ARM-PMU device the following HWMODs
- * are required for the various OMAP2+ devices.
- *
- * OMAP24xx: mpu
- * OMAP3xxx: mpu, debugss
- * OMAP4430: l3_main_3, l3_instr, debugss
- * OMAP4460/70: mpu, debugss
- */
- if (cpu_is_omap443x()) {
- oh_num = ARRAY_SIZE(omap4430_pmu_oh_names);
- oh_names = omap4430_pmu_oh_names;
- } else if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
- oh_num = ARRAY_SIZE(omap3_pmu_oh_names);
- oh_names = omap3_pmu_oh_names;
- } else {
- oh_num = ARRAY_SIZE(omap2_pmu_oh_names);
- oh_names = omap2_pmu_oh_names;
- }
-
- return omap2_init_pmu(oh_num, oh_names);
-}
-omap_subsys_initcall(omap_init_pmu);
diff --git a/arch/arm/mach-omap2/powerdomains7xx_data.c b/arch/arm/mach-omap2/powerdomains7xx_data.c
index eb350a673133..f50963916a21 100644
--- a/arch/arm/mach-omap2/powerdomains7xx_data.c
+++ b/arch/arm/mach-omap2/powerdomains7xx_data.c
@@ -29,6 +29,7 @@
#include "prcm44xx.h"
#include "prm7xx.h"
#include "prcm_mpu7xx.h"
+#include "soc.h"
/* iva_7xx_pwrdm: IVA-HD power domain */
static struct powerdomain iva_7xx_pwrdm = {
@@ -63,6 +64,14 @@ static struct powerdomain custefuse_7xx_pwrdm = {
.flags = PWRDM_HAS_LOWPOWERSTATECHANGE,
};
+/* custefuse_aon_7xx_pwrdm: Customer efuse controller power domain */
+static struct powerdomain custefuse_aon_7xx_pwrdm = {
+ .name = "custefuse_pwrdm",
+ .prcm_offs = DRA7XX_PRM_CUSTEFUSE_INST,
+ .prcm_partition = DRA7XX_PRM_PARTITION,
+ .pwrsts = PWRSTS_ON,
+};
+
/* ipu_7xx_pwrdm: Audio back end power domain */
static struct powerdomain ipu_7xx_pwrdm = {
.name = "ipu_pwrdm",
@@ -350,7 +359,6 @@ static struct powerdomain eve1_7xx_pwrdm = {
static struct powerdomain *powerdomains_dra7xx[] __initdata = {
&iva_7xx_pwrdm,
&rtc_7xx_pwrdm,
- &custefuse_7xx_pwrdm,
&ipu_7xx_pwrdm,
&dss_7xx_pwrdm,
&l4per_7xx_pwrdm,
@@ -374,9 +382,32 @@ static struct powerdomain *powerdomains_dra7xx[] __initdata = {
NULL
};
+static struct powerdomain *powerdomains_dra76x[] __initdata = {
+ &custefuse_aon_7xx_pwrdm,
+ NULL
+};
+
+static struct powerdomain *powerdomains_dra74x[] __initdata = {
+ &custefuse_7xx_pwrdm,
+ NULL
+};
+
+static struct powerdomain *powerdomains_dra72x[] __initdata = {
+ &custefuse_aon_7xx_pwrdm,
+ NULL
+};
+
void __init dra7xx_powerdomains_init(void)
{
pwrdm_register_platform_funcs(&omap4_pwrdm_operations);
pwrdm_register_pwrdms(powerdomains_dra7xx);
+
+ if (soc_is_dra76x())
+ pwrdm_register_pwrdms(powerdomains_dra76x);
+ else if (soc_is_dra74x())
+ pwrdm_register_pwrdms(powerdomains_dra74x);
+ else if (soc_is_dra72x())
+ pwrdm_register_pwrdms(powerdomains_dra72x);
+
pwrdm_complete_init();
}
diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h
index c8f590b7c32d..ee7041d523cf 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -526,10 +526,16 @@ struct omap_prcm_irq_setup {
.priority = _priority \
}
+struct omap_domain_base {
+ u32 pa;
+ void __iomem *va;
+};
+
/**
* struct omap_prcm_init_data - PRCM driver init data
* @index: clock memory mapping index to be used
* @mem: IO mem pointer for this module
+ * @phys: IO mem physical base address for this module
* @offset: module base address offset from the IO base
* @flags: PRCM module init flags
* @device_inst_offset: device instance offset within the module address space
@@ -539,6 +545,7 @@ struct omap_prcm_irq_setup {
struct omap_prcm_init_data {
int index;
void __iomem *mem;
+ u32 phys;
s16 offset;
u16 flags;
s32 device_inst_offset;
diff --git a/arch/arm/mach-omap2/prcm_mpu44xx.c b/arch/arm/mach-omap2/prcm_mpu44xx.c
index cdbee6326d29..9c782f5c3f94 100644
--- a/arch/arm/mach-omap2/prcm_mpu44xx.c
+++ b/arch/arm/mach-omap2/prcm_mpu44xx.c
@@ -24,7 +24,7 @@
* prcm_mpu_base: the virtual address of the start of the PRCM_MPU IP
* block registers
*/
-void __iomem *prcm_mpu_base;
+struct omap_domain_base prcm_mpu_base;
/* PRCM_MPU low-level functions */
@@ -58,5 +58,5 @@ u32 omap4_prcm_mpu_rmw_inst_reg_bits(u32 mask, u32 bits, s16 inst, s16 reg)
*/
void __init omap2_set_globals_prcm_mpu(void __iomem *prcm_mpu)
{
- prcm_mpu_base = prcm_mpu;
+ prcm_mpu_base.va = prcm_mpu;
}
diff --git a/arch/arm/mach-omap2/prcm_mpu_44xx_54xx.h b/arch/arm/mach-omap2/prcm_mpu_44xx_54xx.h
index ca149e70bed0..f565f7f73175 100644
--- a/arch/arm/mach-omap2/prcm_mpu_44xx_54xx.h
+++ b/arch/arm/mach-omap2/prcm_mpu_44xx_54xx.h
@@ -24,7 +24,9 @@
#define __ARCH_ARM_MACH_OMAP2_PRCM_MPU_44XX_54XX_H
#ifndef __ASSEMBLER__
-extern void __iomem *prcm_mpu_base;
+#include "prcm-common.h"
+
+extern struct omap_domain_base prcm_mpu_base;
extern u32 omap4_prcm_mpu_read_inst_reg(s16 inst, u16 idx);
extern void omap4_prcm_mpu_write_inst_reg(u32 val, s16 inst, u16 idx);
diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h
index 233bc84fbc0e..94dc3565add8 100644
--- a/arch/arm/mach-omap2/prm.h
+++ b/arch/arm/mach-omap2/prm.h
@@ -16,7 +16,7 @@
#include "prcm-common.h"
# ifndef __ASSEMBLER__
-extern void __iomem *prm_base;
+extern struct omap_domain_base prm_base;
extern u16 prm_features;
extern void omap2_set_globals_prm(void __iomem *prm);
int omap_prcm_init(void);
diff --git a/arch/arm/mach-omap2/prm2xxx_3xxx.h b/arch/arm/mach-omap2/prm2xxx_3xxx.h
index f57e29b0e041..6775e10883fb 100644
--- a/arch/arm/mach-omap2/prm2xxx_3xxx.h
+++ b/arch/arm/mach-omap2/prm2xxx_3xxx.h
@@ -55,12 +55,12 @@
/* Power/reset management domain register get/set */
static inline u32 omap2_prm_read_mod_reg(s16 module, u16 idx)
{
- return readl_relaxed(prm_base + module + idx);
+ return readl_relaxed(prm_base.va + module + idx);
}
static inline void omap2_prm_write_mod_reg(u32 val, s16 module, u16 idx)
{
- writel_relaxed(val, prm_base + module + idx);
+ writel_relaxed(val, prm_base.va + module + idx);
}
/* Read-modify-write a register in a PRM module. Caller must lock */
diff --git a/arch/arm/mach-omap2/prm33xx.c b/arch/arm/mach-omap2/prm33xx.c
index dcb5001d77da..d2c5bcabdbeb 100644
--- a/arch/arm/mach-omap2/prm33xx.c
+++ b/arch/arm/mach-omap2/prm33xx.c
@@ -30,13 +30,13 @@
/* Read a register in a PRM instance */
static u32 am33xx_prm_read_reg(s16 inst, u16 idx)
{
- return readl_relaxed(prm_base + inst + idx);
+ return readl_relaxed(prm_base.va + inst + idx);
}
/* Write into a register in a PRM instance */
static void am33xx_prm_write_reg(u32 val, s16 inst, u16 idx)
{
- writel_relaxed(val, prm_base + inst + idx);
+ writel_relaxed(val, prm_base.va + inst + idx);
}
/* Read-modify-write a register in PRM. Caller must lock */
diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c
index 718981bb80cd..a2dd13217c89 100644
--- a/arch/arm/mach-omap2/prm3xxx.c
+++ b/arch/arm/mach-omap2/prm3xxx.c
@@ -676,7 +676,7 @@ static struct prm_ll_data omap3xxx_prm_ll_data = {
int __init omap3xxx_prm_init(const struct omap_prcm_init_data *data)
{
omap2_clk_legacy_provider_init(TI_CLKM_PRM,
- prm_base + OMAP3430_IVA2_MOD);
+ prm_base.va + OMAP3430_IVA2_MOD);
if (omap3_has_io_wakeup())
prm_features |= PRM_HAS_IO_WAKEUP;
@@ -690,7 +690,8 @@ static const struct of_device_id omap3_prm_dt_match_table[] = {
static int omap3xxx_prm_late_init(void)
{
- int ret;
+ struct device_node *np;
+ int irq_num;
if (!(prm_features & PRM_HAS_IO_WAKEUP))
return 0;
@@ -702,25 +703,16 @@ static int omap3xxx_prm_late_init(void)
omap3_prcm_irq_setup.reconfigure_io_chain =
omap3430_pre_es3_1_reconfigure_io_chain;
- if (of_have_populated_dt()) {
- struct device_node *np;
- int irq_num;
-
- np = of_find_matching_node(NULL, omap3_prm_dt_match_table);
- if (np) {
- irq_num = of_irq_get(np, 0);
- if (irq_num >= 0)
- omap3_prcm_irq_setup.irq = irq_num;
- }
+ np = of_find_matching_node(NULL, omap3_prm_dt_match_table);
+ if (np) {
+ irq_num = of_irq_get(np, 0);
+ if (irq_num > 0)
+ omap3_prcm_irq_setup.irq = irq_num;
}
omap3xxx_prm_enable_io_wakeup();
- ret = omap_prcm_register_chain_handler(&omap3_prcm_irq_setup);
- if (!ret)
- irq_set_status_flags(omap_prcm_event_to_irq("io"),
- IRQ_NOAUTOEN);
- return ret;
+ return omap_prcm_register_chain_handler(&omap3_prcm_irq_setup);
}
static void __exit omap3xxx_prm_exit(void)
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index 30768003f854..1c0c1663f078 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -91,13 +91,13 @@ static struct prm_reset_src_map omap44xx_prm_reset_src_map[] = {
/* Read a register in a CM/PRM instance in the PRM module */
static u32 omap4_prm_read_inst_reg(s16 inst, u16 reg)
{
- return readl_relaxed(prm_base + inst + reg);
+ return readl_relaxed(prm_base.va + inst + reg);
}
/* Write into a register in a CM/PRM instance in the PRM module */
static void omap4_prm_write_inst_reg(u32 val, s16 inst, u16 reg)
{
- writel_relaxed(val, prm_base + inst + reg);
+ writel_relaxed(val, prm_base.va + inst + reg);
}
/* Read-modify-write a register in a PRM module. Caller must lock */
@@ -742,16 +742,12 @@ static int omap44xx_prm_late_init(void)
if (!(prm_features & PRM_HAS_IO_WAKEUP))
return 0;
- /* OMAP4+ is DT only now */
- if (!of_have_populated_dt())
- return 0;
-
irq_num = of_irq_get(prm_init_data->np, 0);
/*
* Already have OMAP4 IRQ num. For all other platforms, we need
* IRQ numbers from DT
*/
- if (irq_num < 0 && !(prm_init_data->flags & PRM_IRQ_DEFAULT)) {
+ if (irq_num <= 0 && !(prm_init_data->flags & PRM_IRQ_DEFAULT)) {
if (irq_num == -EPROBE_DEFER)
return irq_num;
@@ -760,7 +756,7 @@ static int omap44xx_prm_late_init(void)
}
/* Once OMAP4 DT is filled as well */
- if (irq_num >= 0) {
+ if (irq_num > 0) {
omap4_prcm_irq_setup.irq = irq_num;
omap4_prcm_irq_setup.xlate_irq = NULL;
}
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index dc11841ca334..09180a59b1c9 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -66,7 +66,7 @@ static struct irq_chip_generic **prcm_irq_chips;
static struct omap_prcm_irq_setup *prcm_irq_setup;
/* prm_base: base virtual address of the PRM IP block */
-void __iomem *prm_base;
+struct omap_domain_base prm_base;
u16 prm_features;
@@ -267,10 +267,9 @@ int omap_prcm_register_chain_handler(struct omap_prcm_irq_setup *irq_setup)
{
int nr_regs;
u32 mask[OMAP_PRCM_MAX_NR_PENDING_REG];
- int offset, i;
+ int offset, i, irq;
struct irq_chip_generic *gc;
struct irq_chip_type *ct;
- unsigned int irq;
if (!irq_setup)
return -EINVAL;
@@ -325,7 +324,7 @@ int omap_prcm_register_chain_handler(struct omap_prcm_irq_setup *irq_setup)
for (i = 0; i < irq_setup->nr_regs; i++) {
gc = irq_alloc_generic_chip("PRCM", 1,
- irq_setup->base_irq + i * 32, prm_base,
+ irq_setup->base_irq + i * 32, prm_base.va,
handle_level_irq);
if (!gc) {
@@ -344,10 +343,8 @@ int omap_prcm_register_chain_handler(struct omap_prcm_irq_setup *irq_setup)
prcm_irq_chips[i] = gc;
}
- if (of_have_populated_dt()) {
- int irq = omap_prcm_event_to_irq("io");
- omap_pcs_legacy_init(irq, irq_setup->reconfigure_io_chain);
- }
+ irq = omap_prcm_event_to_irq("io");
+ omap_pcs_legacy_init(irq, irq_setup->reconfigure_io_chain);
return 0;
@@ -364,7 +361,7 @@ err:
*/
void __init omap2_set_globals_prm(void __iomem *prm)
{
- prm_base = prm;
+ prm_base.va = prm;
}
/**
@@ -755,19 +752,22 @@ int __init omap2_prm_base_init(void)
struct device_node *np;
const struct of_device_id *match;
struct omap_prcm_init_data *data;
- void __iomem *mem;
+ struct resource res;
+ int ret;
for_each_matching_node_and_match(np, omap_prcm_dt_match_table, &match) {
data = (struct omap_prcm_init_data *)match->data;
- mem = of_iomap(np, 0);
- if (!mem)
- return -ENOMEM;
+ ret = of_address_to_resource(np, 0, &res);
+ if (ret)
+ return ret;
- if (data->index == TI_CLKM_PRM)
- prm_base = mem + data->offset;
+ data->mem = ioremap(res.start, resource_size(&res));
- data->mem = mem;
+ if (data->index == TI_CLKM_PRM) {
+ prm_base.va = data->mem + data->offset;
+ prm_base.pa = res.start + data->offset;
+ }
data->np = np;
diff --git a/arch/arm/mach-omap2/prminst44xx.c b/arch/arm/mach-omap2/prminst44xx.c
index d0b15dbafa2e..48b8127b4e99 100644
--- a/arch/arm/mach-omap2/prminst44xx.c
+++ b/arch/arm/mach-omap2/prminst44xx.c
@@ -29,7 +29,7 @@
#include "prcm_mpu44xx.h"
#include "soc.h"
-static void __iomem *_prm_bases[OMAP4_MAX_PRCM_PARTITIONS];
+static struct omap_domain_base _prm_bases[OMAP4_MAX_PRCM_PARTITIONS];
static s32 prm_dev_inst = PRM_INSTANCE_UNKNOWN;
@@ -41,8 +41,10 @@ static s32 prm_dev_inst = PRM_INSTANCE_UNKNOWN;
*/
void omap_prm_base_init(void)
{
- _prm_bases[OMAP4430_PRM_PARTITION] = prm_base;
- _prm_bases[OMAP4430_PRCM_MPU_PARTITION] = prcm_mpu_base;
+ memcpy(&_prm_bases[OMAP4430_PRM_PARTITION], &prm_base,
+ sizeof(prm_base));
+ memcpy(&_prm_bases[OMAP4430_PRCM_MPU_PARTITION], &prcm_mpu_base,
+ sizeof(prcm_mpu_base));
}
s32 omap4_prmst_get_prm_dev_inst(void)
@@ -60,8 +62,8 @@ u32 omap4_prminst_read_inst_reg(u8 part, s16 inst, u16 idx)
{
BUG_ON(part >= OMAP4_MAX_PRCM_PARTITIONS ||
part == OMAP4430_INVALID_PRCM_PARTITION ||
- !_prm_bases[part]);
- return readl_relaxed(_prm_bases[part] + inst + idx);
+ !_prm_bases[part].va);
+ return readl_relaxed(_prm_bases[part].va + inst + idx);
}
/* Write into a register in a PRM instance */
@@ -69,8 +71,8 @@ void omap4_prminst_write_inst_reg(u32 val, u8 part, s16 inst, u16 idx)
{
BUG_ON(part >= OMAP4_MAX_PRCM_PARTITIONS ||
part == OMAP4430_INVALID_PRCM_PARTITION ||
- !_prm_bases[part]);
- writel_relaxed(val, _prm_bases[part] + inst + idx);
+ !_prm_bases[part].va);
+ writel_relaxed(val, _prm_bases[part].va + inst + idx);
}
/* Read-modify-write a register in PRM. Caller must lock */
diff --git a/arch/arm/mach-omap2/sleep34xx.S b/arch/arm/mach-omap2/sleep34xx.S
index 1b9f0520dea9..fa5fd24f524c 100644
--- a/arch/arm/mach-omap2/sleep34xx.S
+++ b/arch/arm/mach-omap2/sleep34xx.S
@@ -530,10 +530,12 @@ l2dis_3630_offset:
.long l2dis_3630 - .
.data
+ .align 2
l2dis_3630:
.word 0
.data
+ .align 2
l2_inv_api_params:
.word 0x1, 0x00
diff --git a/arch/arm/mach-omap2/sleep44xx.S b/arch/arm/mach-omap2/sleep44xx.S
index c7a3b4aab4b5..56dfa2d5d0a8 100644
--- a/arch/arm/mach-omap2/sleep44xx.S
+++ b/arch/arm/mach-omap2/sleep44xx.S
@@ -385,6 +385,7 @@ ppa_zero_params_offset:
ENDPROC(omap_do_wfi)
.data
+ .align 2
ppa_zero_params:
.word 0
diff --git a/arch/arm/mach-omap2/soc.h b/arch/arm/mach-omap2/soc.h
index 2aa01c270898..754cd0fc0e7b 100644
--- a/arch/arm/mach-omap2/soc.h
+++ b/arch/arm/mach-omap2/soc.h
@@ -167,6 +167,7 @@ IS_TI_SUBCLASS(816x, 0x816)
IS_TI_SUBCLASS(814x, 0x814)
IS_AM_SUBCLASS(335x, 0x335)
IS_AM_SUBCLASS(437x, 0x437)
+IS_DRA_SUBCLASS(76x, 0x76)
IS_DRA_SUBCLASS(75x, 0x75)
IS_DRA_SUBCLASS(72x, 0x72)
@@ -185,6 +186,7 @@ IS_DRA_SUBCLASS(72x, 0x72)
#define soc_is_omap54xx() 0
#define soc_is_omap543x() 0
#define soc_is_dra7xx() 0
+#define soc_is_dra76x() 0
#define soc_is_dra74x() 0
#define soc_is_dra72x() 0
@@ -314,9 +316,11 @@ IS_OMAP_TYPE(3430, 0x3430)
#if defined(CONFIG_SOC_DRA7XX)
#undef soc_is_dra7xx
+#undef soc_is_dra76x
#undef soc_is_dra74x
#undef soc_is_dra72x
#define soc_is_dra7xx() is_dra7xx()
+#define soc_is_dra76x() is_dra76x()
#define soc_is_dra74x() is_dra75x()
#define soc_is_dra72x() is_dra72x()
#endif
@@ -386,6 +390,7 @@ IS_OMAP_TYPE(3430, 0x3430)
#define OMAP5432_REV_ES2_0 (OMAP54XX_CLASS | (0x32 << 16) | (0x20 << 8))
#define DRA7XX_CLASS 0x07000000
+#define DRA762_REV_ES1_0 (DRA7XX_CLASS | (0x62 << 16) | (0x10 << 8))
#define DRA752_REV_ES1_0 (DRA7XX_CLASS | (0x52 << 16) | (0x10 << 8))
#define DRA752_REV_ES1_1 (DRA7XX_CLASS | (0x52 << 16) | (0x11 << 8))
#define DRA752_REV_ES2_0 (DRA7XX_CLASS | (0x52 << 16) | (0x20 << 8))
diff --git a/arch/arm/mach-omap2/sr_device.c b/arch/arm/mach-omap2/sr_device.c
index d7cff2632d1e..eef6935e0403 100644
--- a/arch/arm/mach-omap2/sr_device.c
+++ b/arch/arm/mach-omap2/sr_device.c
@@ -44,13 +44,9 @@ static void __init sr_set_nvalues(struct omap_volt_data *volt_data,
while (volt_data[count].volt_nominal)
count++;
- nvalue_table = kzalloc(sizeof(struct omap_sr_nvalue_table)*count,
- GFP_KERNEL);
-
- if (!nvalue_table) {
- pr_err("OMAP: SmartReflex: cannot allocate memory for n-value table\n");
+ nvalue_table = kcalloc(count, sizeof(*nvalue_table), GFP_KERNEL);
+ if (!nvalue_table)
return;
- }
for (i = 0, j = 0; i < count; i++) {
u32 v;
@@ -102,12 +98,9 @@ static int __init sr_dev_init(struct omap_hwmod *oh, void *user)
char *name = "smartreflex";
static int i;
- sr_data = kzalloc(sizeof(struct omap_sr_data), GFP_KERNEL);
- if (!sr_data) {
- pr_err("%s: Unable to allocate memory for %s sr_data\n",
- __func__, oh->name);
+ sr_data = kzalloc(sizeof(*sr_data), GFP_KERNEL);
+ if (!sr_data)
return -ENOMEM;
- }
sr_dev_attr = (struct omap_smartreflex_dev_attr *)oh->dev_attr;
if (!sr_dev_attr || !sr_dev_attr->sensor_voltdm_name) {
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index 07dd692c4737..ece09c9461f7 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -68,6 +68,9 @@
static struct omap_dm_timer clkev;
static struct clock_event_device clockevent_gpt;
+/* Clockevent hwmod for am335x and am437x suspend */
+static struct omap_hwmod *clockevent_gpt_hwmod;
+
#ifdef CONFIG_SOC_HAS_REALTIME_COUNTER
static unsigned long arch_timer_freq;
@@ -125,6 +128,23 @@ static int omap2_gp_timer_set_periodic(struct clock_event_device *evt)
return 0;
}
+static void omap_clkevt_idle(struct clock_event_device *unused)
+{
+ if (!clockevent_gpt_hwmod)
+ return;
+
+ omap_hwmod_idle(clockevent_gpt_hwmod);
+}
+
+static void omap_clkevt_unidle(struct clock_event_device *unused)
+{
+ if (!clockevent_gpt_hwmod)
+ return;
+
+ omap_hwmod_enable(clockevent_gpt_hwmod);
+ __omap_dm_timer_int_enable(&clkev, OMAP_TIMER_INT_OVERFLOW);
+}
+
static struct clock_event_device clockevent_gpt = {
.features = CLOCK_EVT_FEAT_PERIODIC |
CLOCK_EVT_FEAT_ONESHOT,
@@ -232,37 +252,29 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
const char **timer_name,
int posted)
{
- char name[10]; /* 10 = sizeof("gptXX_Xck0") */
const char *oh_name = NULL;
struct device_node *np;
struct omap_hwmod *oh;
- struct resource irq, mem;
struct clk *src;
int r = 0;
- if (of_have_populated_dt()) {
- np = omap_get_timer_dt(omap_timer_match, property);
- if (!np)
- return -ENODEV;
+ np = omap_get_timer_dt(omap_timer_match, property);
+ if (!np)
+ return -ENODEV;
- of_property_read_string_index(np, "ti,hwmods", 0, &oh_name);
- if (!oh_name)
- return -ENODEV;
+ of_property_read_string_index(np, "ti,hwmods", 0, &oh_name);
+ if (!oh_name)
+ return -ENODEV;
- timer->irq = irq_of_parse_and_map(np, 0);
- if (!timer->irq)
- return -ENXIO;
+ timer->irq = irq_of_parse_and_map(np, 0);
+ if (!timer->irq)
+ return -ENXIO;
- timer->io_base = of_iomap(np, 0);
+ timer->io_base = of_iomap(np, 0);
- of_node_put(np);
- } else {
- if (omap_dm_timer_reserve_systimer(timer->id))
- return -ENODEV;
+ timer->fclk = of_clk_get_by_name(np, "fck");
- sprintf(name, "timer%d", timer->id);
- oh_name = name;
- }
+ of_node_put(np);
oh = omap_hwmod_lookup(oh_name);
if (!oh)
@@ -270,29 +282,14 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
*timer_name = oh->name;
- if (!of_have_populated_dt()) {
- r = omap_hwmod_get_resource_byname(oh, IORESOURCE_IRQ, NULL,
- &irq);
- if (r)
- return -ENXIO;
- timer->irq = irq.start;
-
- r = omap_hwmod_get_resource_byname(oh, IORESOURCE_MEM, NULL,
- &mem);
- if (r)
- return -ENXIO;
-
- /* Static mapping, never released */
- timer->io_base = ioremap(mem.start, mem.end - mem.start);
- }
-
if (!timer->io_base)
return -ENXIO;
omap_hwmod_setup_one(oh_name);
/* After the dmtimer is using hwmod these clocks won't be needed */
- timer->fclk = clk_get(NULL, omap_hwmod_get_main_clk(oh));
+ if (IS_ERR_OR_NULL(timer->fclk))
+ timer->fclk = clk_get(NULL, omap_hwmod_get_main_clk(oh));
if (IS_ERR(timer->fclk))
return PTR_ERR(timer->fclk);
@@ -358,6 +355,14 @@ static void __init omap2_gp_clockevent_init(int gptimer_id,
3, /* Timer internal resynch latency */
0xffffffff);
+ if (soc_is_am33xx() || soc_is_am43xx()) {
+ clockevent_gpt.suspend = omap_clkevt_idle;
+ clockevent_gpt.resume = omap_clkevt_unidle;
+
+ clockevent_gpt_hwmod =
+ omap_hwmod_lookup(clockevent_gpt.name);
+ }
+
pr_info("OMAP clockevent source: %s at %lu Hz\n", clockevent_gpt.name,
clkev.rate);
}
@@ -405,18 +410,15 @@ static int __init __maybe_unused omap2_sync32k_clocksource_init(void)
const char *oh_name = "counter_32k";
/*
- * If device-tree is present, then search the DT blob
- * to see if the 32kHz counter is supported.
+ * See if the 32kHz counter is supported.
*/
- if (of_have_populated_dt()) {
- np = omap_get_timer_dt(omap_counter_match, NULL);
- if (!np)
- return -ENODEV;
-
- of_property_read_string_index(np, "ti,hwmods", 0, &oh_name);
- if (!oh_name)
- return -ENODEV;
- }
+ np = omap_get_timer_dt(omap_counter_match, NULL);
+ if (!np)
+ return -ENODEV;
+
+ of_property_read_string_index(np, "ti,hwmods", 0, &oh_name);
+ if (!oh_name)
+ return -ENODEV;
/*
* First check hwmod data is available for sync32k counter
@@ -434,18 +436,6 @@ static int __init __maybe_unused omap2_sync32k_clocksource_init(void)
return ret;
}
- if (!of_have_populated_dt()) {
- void __iomem *vbase;
-
- vbase = omap_hwmod_get_mpu_rt_va(oh);
-
- ret = omap_init_clocksource_32k(vbase);
- if (ret) {
- pr_warn("%s: failed to initialize counter_32k as a clocksource (%d)\n",
- __func__, ret);
- omap_hwmod_idle(oh);
- }
- }
return ret;
}
@@ -497,7 +487,7 @@ void __init omap_init_time(void)
__omap_sync32k_timer_init(1, "timer_32k_ck", "ti,timer-alwon",
2, "timer_sys_ck", NULL, false);
- clocksource_probe();
+ timer_probe();
}
#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_SOC_AM43XX)
@@ -506,7 +496,7 @@ void __init omap3_secure_sync32k_timer_init(void)
__omap_sync32k_timer_init(12, "secure_32k_fck", "ti,timer-secure",
2, "timer_sys_ck", NULL, false);
- clocksource_probe();
+ timer_probe();
}
#endif /* CONFIG_ARCH_OMAP3 */
@@ -517,7 +507,7 @@ void __init omap3_gptimer_timer_init(void)
__omap_sync32k_timer_init(2, "timer_sys_ck", NULL,
1, "timer_sys_ck", "ti,timer-alwon", true);
if (of_have_populated_dt())
- clocksource_probe();
+ timer_probe();
}
#endif
@@ -532,7 +522,7 @@ static void __init omap4_sync32k_timer_init(void)
void __init omap4_local_timer_init(void)
{
omap4_sync32k_timer_init();
- clocksource_probe();
+ timer_probe();
}
#endif
@@ -656,101 +646,11 @@ void __init omap5_realtime_timer_init(void)
omap4_sync32k_timer_init();
realtime_counter_init();
- clocksource_probe();
+ timer_probe();
}
#endif /* CONFIG_SOC_OMAP5 || CONFIG_SOC_DRA7XX */
/**
- * omap_timer_init - build and register timer device with an
- * associated timer hwmod
- * @oh: timer hwmod pointer to be used to build timer device
- * @user: parameter that can be passed from calling hwmod API
- *
- * Called by omap_hwmod_for_each_by_class to register each of the timer
- * devices present in the system. The number of timer devices is known
- * by parsing through the hwmod database for a given class name. At the
- * end of function call memory is allocated for timer device and it is
- * registered to the framework ready to be proved by the driver.
- */
-static int __init omap_timer_init(struct omap_hwmod *oh, void *unused)
-{
- int id;
- int ret = 0;
- char *name = "omap_timer";
- struct dmtimer_platform_data *pdata;
- struct platform_device *pdev;
- struct omap_timer_capability_dev_attr *timer_dev_attr;
-
- pr_debug("%s: %s\n", __func__, oh->name);
-
- /* on secure device, do not register secure timer */
- timer_dev_attr = oh->dev_attr;
- if (omap_type() != OMAP2_DEVICE_TYPE_GP && timer_dev_attr)
- if (timer_dev_attr->timer_capability == OMAP_TIMER_SECURE)
- return ret;
-
- pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
- if (!pdata) {
- pr_err("%s: No memory for [%s]\n", __func__, oh->name);
- return -ENOMEM;
- }
-
- /*
- * Extract the IDs from name field in hwmod database
- * and use the same for constructing ids' for the
- * timer devices. In a way, we are avoiding usage of
- * static variable witin the function to do the same.
- * CAUTION: We have to be careful and make sure the
- * name in hwmod database does not change in which case
- * we might either make corresponding change here or
- * switch back static variable mechanism.
- */
- sscanf(oh->name, "timer%2d", &id);
-
- if (timer_dev_attr)
- pdata->timer_capability = timer_dev_attr->timer_capability;
-
- pdata->timer_errata = omap_dm_timer_get_errata();
- pdata->get_context_loss_count = omap_pm_get_dev_context_loss_count;
-
- pdev = omap_device_build(name, id, oh, pdata, sizeof(*pdata));
-
- if (IS_ERR(pdev)) {
- pr_err("%s: Can't build omap_device for %s: %s.\n",
- __func__, name, oh->name);
- ret = -EINVAL;
- }
-
- kfree(pdata);
-
- return ret;
-}
-
-/**
- * omap2_dm_timer_init - top level regular device initialization
- *
- * Uses dedicated hwmod api to parse through hwmod database for
- * given class name and then build and register the timer device.
- */
-static int __init omap2_dm_timer_init(void)
-{
- int ret;
-
- /* If dtb is there, the devices will be created dynamically */
- if (of_have_populated_dt())
- return -ENODEV;
-
- ret = omap_hwmod_for_each_by_class("timer", omap_timer_init, NULL);
- if (unlikely(ret)) {
- pr_err("%s: device registration failed.\n", __func__);
- return -EINVAL;
- }
-
- return 0;
-}
-omap_arch_initcall(omap2_dm_timer_init);
-
-/**
* omap2_override_clocksource - clocksource override with user configuration
*
* Allows user to override default clocksource, using kernel parameter
diff --git a/arch/arm/mach-omap2/wd_timer.c b/arch/arm/mach-omap2/wd_timer.c
index ff0a68cf7439..0084b6c77cf1 100644
--- a/arch/arm/mach-omap2/wd_timer.c
+++ b/arch/arm/mach-omap2/wd_timer.c
@@ -102,31 +102,3 @@ int omap2_wd_timer_reset(struct omap_hwmod *oh)
return (c == MAX_MODULE_SOFTRESET_WAIT) ? -ETIMEDOUT :
omap2_wd_timer_disable(oh);
}
-
-static int __init omap_init_wdt(void)
-{
- int id = -1;
- struct platform_device *pdev;
- struct omap_hwmod *oh;
- char *oh_name = "wd_timer2";
- char *dev_name = "omap_wdt";
- struct omap_wd_timer_platform_data pdata;
-
- if (!cpu_class_is_omap2() || of_have_populated_dt())
- return 0;
-
- oh = omap_hwmod_lookup(oh_name);
- if (!oh) {
- pr_err("Could not look up wd_timer%d hwmod\n", id);
- return -EINVAL;
- }
-
- pdata.read_reset_sources = prm_read_reset_sources;
-
- pdev = omap_device_build(dev_name, id, oh, &pdata,
- sizeof(struct omap_wd_timer_platform_data));
- WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s.\n",
- dev_name, oh->name);
- return 0;
-}
-omap_subsys_initcall(omap_init_wdt);
diff --git a/arch/arm/mach-orion5x/common.h b/arch/arm/mach-orion5x/common.h
index efeffc6b4ebb..4c0c7de665c3 100644
--- a/arch/arm/mach-orion5x/common.h
+++ b/arch/arm/mach-orion5x/common.h
@@ -54,6 +54,7 @@ void orion5x_restart(enum reboot_mode, const char *);
* PCIe/PCI functions.
*/
struct pci_bus;
+struct pci_host_bridge;
struct pci_sys_data;
struct pci_dev;
@@ -61,7 +62,7 @@ void orion5x_pcie_id(u32 *dev, u32 *rev);
void orion5x_pci_disable(void);
void orion5x_pci_set_cardbus_mode(void);
int orion5x_pci_sys_setup(int nr, struct pci_sys_data *sys);
-struct pci_bus *orion5x_pci_sys_scan_bus(int nr, struct pci_sys_data *sys);
+int orion5x_pci_sys_scan_bus(int nr, struct pci_host_bridge *bridge);
int orion5x_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
struct tag;
diff --git a/arch/arm/mach-orion5x/db88f5281-setup.c b/arch/arm/mach-orion5x/db88f5281-setup.c
index 12f74b46e2ff..3f5863de766a 100644
--- a/arch/arm/mach-orion5x/db88f5281-setup.c
+++ b/arch/arm/mach-orion5x/db88f5281-setup.c
@@ -16,7 +16,7 @@
#include <linux/pci.h>
#include <linux/irq.h>
#include <linux/mtd/physmap.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/timer.h>
#include <linux/mv643xx_eth.h>
#include <linux/i2c.h>
diff --git a/arch/arm/mach-orion5x/kurobox_pro-setup.c b/arch/arm/mach-orion5x/kurobox_pro-setup.c
index 9dc3f59bed9c..83d43cff4bd7 100644
--- a/arch/arm/mach-orion5x/kurobox_pro-setup.c
+++ b/arch/arm/mach-orion5x/kurobox_pro-setup.c
@@ -15,7 +15,7 @@
#include <linux/irq.h>
#include <linux/delay.h>
#include <linux/mtd/physmap.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mv643xx_eth.h>
#include <linux/i2c.h>
#include <linux/serial_reg.h>
diff --git a/arch/arm/mach-orion5x/pci.c b/arch/arm/mach-orion5x/pci.c
index ecb998e7f8dc..76951bfbacf5 100644
--- a/arch/arm/mach-orion5x/pci.c
+++ b/arch/arm/mach-orion5x/pci.c
@@ -555,18 +555,27 @@ int __init orion5x_pci_sys_setup(int nr, struct pci_sys_data *sys)
return 0;
}
-struct pci_bus __init *orion5x_pci_sys_scan_bus(int nr, struct pci_sys_data *sys)
+int __init orion5x_pci_sys_scan_bus(int nr, struct pci_host_bridge *bridge)
{
- if (nr == 0)
- return pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys,
- &sys->resources);
+ struct pci_sys_data *sys = pci_host_bridge_priv(bridge);
- if (nr == 1 && !orion5x_pci_disabled)
- return pci_scan_root_bus(NULL, sys->busnr, &pci_ops, sys,
- &sys->resources);
+ list_splice_init(&sys->resources, &bridge->windows);
+ bridge->dev.parent = NULL;
+ bridge->sysdata = sys;
+ bridge->busnr = sys->busnr;
+
+ if (nr == 0) {
+ bridge->ops = &pcie_ops;
+ return pci_scan_root_bus_bridge(bridge);
+ }
+
+ if (nr == 1 && !orion5x_pci_disabled) {
+ bridge->ops = &pci_ops;
+ return pci_scan_root_bus_bridge(bridge);
+ }
BUG();
- return NULL;
+ return -ENODEV;
}
int __init orion5x_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
diff --git a/arch/arm/mach-orion5x/ts209-setup.c b/arch/arm/mach-orion5x/ts209-setup.c
index 7bd671b2854c..0c315515dd2d 100644
--- a/arch/arm/mach-orion5x/ts209-setup.c
+++ b/arch/arm/mach-orion5x/ts209-setup.c
@@ -15,7 +15,7 @@
#include <linux/pci.h>
#include <linux/irq.h>
#include <linux/mtd/physmap.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mv643xx_eth.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
diff --git a/arch/arm/mach-orion5x/ts78xx-setup.c b/arch/arm/mach-orion5x/ts78xx-setup.c
index 7ef80a8304c0..94778739e38f 100644
--- a/arch/arm/mach-orion5x/ts78xx-setup.c
+++ b/arch/arm/mach-orion5x/ts78xx-setup.c
@@ -16,7 +16,7 @@
#include <linux/platform_device.h>
#include <linux/mv643xx_eth.h>
#include <linux/ata_platform.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/timeriomem-rng.h>
#include <asm/mach-types.h>
diff --git a/arch/arm/mach-prima2/Kconfig b/arch/arm/mach-prima2/Kconfig
index 85e874a97337..7426211bddaf 100644
--- a/arch/arm/mach-prima2/Kconfig
+++ b/arch/arm/mach-prima2/Kconfig
@@ -27,7 +27,6 @@ config ARCH_ATLAS7
bool "CSR SiRFSoC ATLAS7 ARM Cortex A7 Platform"
default y
select ARM_GIC
- select CPU_V7
select ATLAS7_TIMER
select HAVE_ARM_SCU if SMP
select HAVE_SMP
diff --git a/arch/arm/mach-prima2/common.c b/arch/arm/mach-prima2/common.c
index 8cadb302a7d2..ffe05c27087e 100644
--- a/arch/arm/mach-prima2/common.c
+++ b/arch/arm/mach-prima2/common.c
@@ -15,7 +15,7 @@
#include <linux/of_platform.h>
#include "common.h"
-static void __init sirfsoc_init_late(void)
+static void __init __maybe_unused sirfsoc_init_late(void)
{
sirfsoc_pm_init();
}
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index 76fbc115ec33..ce7d97babb0f 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -566,6 +566,7 @@ config MACH_ICONTROL
config ARCH_PXA_ESERIES
bool "PXA based Toshiba e-series PDAs"
select FB_W100
+ select FB
select PXA25x
config MACH_E330
diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c
index d452a49c0396..d6d92f388f14 100644
--- a/arch/arm/mach-pxa/balloon3.c
+++ b/arch/arm/mach-pxa/balloon3.c
@@ -27,9 +27,9 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/types.h>
-#include <linux/i2c/pcf857x.h>
+#include <linux/platform_data/pcf857x.h>
#include <linux/i2c/pxa-i2c.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/physmap.h>
#include <linux/regulator/max1586.h>
diff --git a/arch/arm/mach-pxa/em-x270.c b/arch/arm/mach-pxa/em-x270.c
index 811a7317f3ea..6d28035ebba5 100644
--- a/arch/arm/mach-pxa/em-x270.c
+++ b/arch/arm/mach-pxa/em-x270.c
@@ -15,7 +15,7 @@
#include <linux/dm9000.h>
#include <linux/platform_data/rtc-v3020.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/input.h>
diff --git a/arch/arm/mach-pxa/eseries.c b/arch/arm/mach-pxa/eseries.c
index fa9d71d194f0..91f7c3e40065 100644
--- a/arch/arm/mach-pxa/eseries.c
+++ b/arch/arm/mach-pxa/eseries.c
@@ -20,7 +20,7 @@
#include <linux/mfd/tc6387xb.h>
#include <linux/mfd/tc6393xb.h>
#include <linux/mfd/t7l66xb.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/usb/gpio_vbus.h>
#include <linux/memblock.h>
diff --git a/arch/arm/mach-pxa/include/mach/magician.h b/arch/arm/mach-pxa/include/mach/magician.h
index 5f6b850ebe33..c48b54d0f331 100644
--- a/arch/arm/mach-pxa/include/mach/magician.h
+++ b/arch/arm/mach-pxa/include/mach/magician.h
@@ -24,6 +24,7 @@
#define GPIO10_MAGICIAN_GSM_IRQ 10
#define GPIO11_MAGICIAN_GSM_OUT1 11
#define GPIO13_MAGICIAN_CPLD_IRQ 13
+#define GPIO14_MAGICIAN_TSC2046_CS 14
#define GPIO18_MAGICIAN_UNKNOWN 18
#define GPIO22_MAGICIAN_VIBRA_EN 22
#define GPIO26_MAGICIAN_GSM_POWER 26
diff --git a/arch/arm/mach-pxa/include/mach/mtd-xip.h b/arch/arm/mach-pxa/include/mach/mtd-xip.h
index 990d2bf2fb45..9bf4ea6a6f74 100644
--- a/arch/arm/mach-pxa/include/mach/mtd-xip.h
+++ b/arch/arm/mach-pxa/include/mach/mtd-xip.h
@@ -17,11 +17,15 @@
#include <mach/regs-ost.h>
-#define xip_irqpending() (ICIP & ICMR)
+/* restored July 2017, this did not build since 2011! */
+
+#define ICIP io_p2v(0x40d00000)
+#define ICMR io_p2v(0x40d00004)
+#define xip_irqpending() (readl(ICIP) & readl(ICMR))
/* we sample OSCR and convert desired delta to usec (1/4 ~= 1000000/3686400) */
-#define xip_currtime() (OSCR)
-#define xip_elapsed_since(x) (signed)((OSCR - (x)) / 4)
+#define xip_currtime() readl(OSCR)
+#define xip_elapsed_since(x) (signed)((readl(OSCR) - (x)) / 4)
/*
* xip_cpu_idle() is used when waiting for a delay equal or larger than
diff --git a/arch/arm/mach-pxa/littleton.c b/arch/arm/mach-pxa/littleton.c
index 051c554776a6..fae38fdc8d8e 100644
--- a/arch/arm/mach-pxa/littleton.c
+++ b/arch/arm/mach-pxa/littleton.c
@@ -27,7 +27,7 @@
#include <linux/i2c.h>
#include <linux/leds.h>
#include <linux/mfd/da903x.h>
-#include <linux/i2c/max732x.h>
+#include <linux/platform_data/max732x.h>
#include <linux/i2c/pxa-i2c.h>
#include <asm/types.h>
diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c
index b413e36506af..7f3566c93733 100644
--- a/arch/arm/mach-pxa/magician.c
+++ b/arch/arm/mach-pxa/magician.c
@@ -54,6 +54,10 @@
#include "devices.h"
#include "generic.h"
+#include <linux/spi/spi.h>
+#include <linux/spi/pxa2xx_spi.h>
+#include <linux/spi/ads7846.h>
+
static unsigned long magician_pin_config[] __initdata = {
/* SDRAM and Static Memory I/O Signals */
@@ -85,7 +89,7 @@ static unsigned long magician_pin_config[] __initdata = {
/* SSP 2 TSC2046 touchscreen */
GPIO19_SSP2_SCLK,
- GPIO14_SSP2_SFRM,
+ MFP_CFG_OUT(GPIO14, AF0, DRIVE_HIGH), /* frame as GPIO */
GPIO89_SSP2_TXD,
GPIO88_SSP2_RXD,
@@ -675,6 +679,37 @@ static struct platform_device bq24022 = {
};
/*
+ * fixed regulator for ads7846
+ */
+
+static struct regulator_consumer_supply ads7846_supply =
+ REGULATOR_SUPPLY("vcc", "spi2.0");
+
+static struct regulator_init_data vads7846_regulator = {
+ .constraints = {
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ },
+ .num_consumer_supplies = 1,
+ .consumer_supplies = &ads7846_supply,
+};
+
+static struct fixed_voltage_config vads7846 = {
+ .supply_name = "vads7846",
+ .microvolts = 3300000, /* probably */
+ .gpio = -EINVAL,
+ .startup_delay = 0,
+ .init_data = &vads7846_regulator,
+};
+
+static struct platform_device vads7846_device = {
+ .name = "reg-fixed-voltage",
+ .id = -1,
+ .dev = {
+ .platform_data = &vads7846,
+ },
+};
+
+/*
* Vcore regulator MAX1587A
*/
@@ -852,6 +887,49 @@ static struct i2c_pxa_platform_data magician_i2c_power_info = {
};
/*
+ * Touchscreen
+ */
+
+static struct ads7846_platform_data ads7846_pdata = {
+ .model = 7846,
+ .x_plate_ohms = 317,
+ .y_plate_ohms = 500,
+ .pressure_max = 1023, /* with x plate ohms it will overflow 255 */
+ .debounce_max = 3, /* first readout is always bad */
+ .debounce_tol = 30,
+ .debounce_rep = 0,
+ .gpio_pendown = GPIO115_MAGICIAN_nPEN_IRQ,
+ .keep_vref_on = 1,
+ .wakeup = true,
+ .vref_delay_usecs = 100,
+ .penirq_recheck_delay_usecs = 100,
+};
+
+struct pxa2xx_spi_chip tsc2046_chip_info = {
+ .tx_threshold = 1,
+ .rx_threshold = 2,
+ .timeout = 64,
+ /* NOTICE must be GPIO, incompatibility with hw PXA SPI framing */
+ .gpio_cs = GPIO14_MAGICIAN_TSC2046_CS,
+};
+
+static struct pxa2xx_spi_master magician_spi_info = {
+ .num_chipselect = 1,
+ .enable_dma = 1,
+};
+
+static struct spi_board_info ads7846_spi_board_info[] __initdata = {
+ {
+ .modalias = "ads7846",
+ .bus_num = 2,
+ .max_speed_hz = 2500000,
+ .platform_data = &ads7846_pdata,
+ .controller_data = &tsc2046_chip_info,
+ .irq = PXA_GPIO_TO_IRQ(GPIO115_MAGICIAN_nPEN_IRQ),
+ },
+};
+
+/*
* Platform devices
*/
@@ -865,6 +943,7 @@ static struct platform_device *devices[] __initdata = {
&power_supply,
&strataflash,
&leds_gpio,
+ &vads7846_device,
};
static struct gpio magician_global_gpios[] = {
@@ -922,6 +1001,9 @@ static void __init magician_init(void)
} else
pr_err("LCD detection: CPLD mapping failed\n");
+ pxa2xx_set_spi_info(2, &magician_spi_info);
+ spi_register_board_info(ARRAY_AND_SIZE(ads7846_spi_board_info));
+
regulator_register_always_on(0, "power", pwm_backlight_supply,
ARRAY_SIZE(pwm_backlight_supply), 5000000);
diff --git a/arch/arm/mach-pxa/mioa701_bootresume.S b/arch/arm/mach-pxa/mioa701_bootresume.S
index 81591491ab94..42d93f40a59f 100644
--- a/arch/arm/mach-pxa/mioa701_bootresume.S
+++ b/arch/arm/mach-pxa/mioa701_bootresume.S
@@ -16,6 +16,7 @@
* insist on it to be truly read-only.
*/
.data
+ .align 2
ENTRY(mioa701_bootstrap)
0:
b 1f
@@ -34,4 +35,5 @@ ENTRY(mioa701_jumpaddr)
ENTRY(mioa701_bootstrap_lg)
.data
+ .align 2
.word 2b-0b
diff --git a/arch/arm/mach-pxa/palmtx.c b/arch/arm/mach-pxa/palmtx.c
index 36646975b5d2..47e3e38e9bec 100644
--- a/arch/arm/mach-pxa/palmtx.c
+++ b/arch/arm/mach-pxa/palmtx.c
@@ -28,7 +28,7 @@
#include <linux/wm97xx.h>
#include <linux/power_supply.h>
#include <linux/usb/gpio_vbus.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/physmap.h>
diff --git a/arch/arm/mach-pxa/pm.c b/arch/arm/mach-pxa/pm.c
index e7450fb49d24..f2237f471750 100644
--- a/arch/arm/mach-pxa/pm.c
+++ b/arch/arm/mach-pxa/pm.c
@@ -107,10 +107,8 @@ static int __init pxa_pm_init(void)
sleep_save = kmalloc_array(pxa_cpu_pm_fns->save_count,
sizeof(*sleep_save),
GFP_KERNEL);
- if (!sleep_save) {
- printk(KERN_ERR "failed to alloc memory for pm save\n");
+ if (!sleep_save)
return -ENOMEM;
- }
suspend_set_ops(&pxa_pm_ops);
return 0;
diff --git a/arch/arm/mach-pxa/pxa3xx-ulpi.c b/arch/arm/mach-pxa/pxa3xx-ulpi.c
index eba595fac8ca..60cb59a7ebd1 100644
--- a/arch/arm/mach-pxa/pxa3xx-ulpi.c
+++ b/arch/arm/mach-pxa/pxa3xx-ulpi.c
@@ -286,11 +286,9 @@ static int pxa3xx_u2d_probe(struct platform_device *pdev)
struct resource *r;
int err;
- u2d = kzalloc(sizeof(struct pxa3xx_u2d_ulpi), GFP_KERNEL);
- if (!u2d) {
- dev_err(&pdev->dev, "failed to allocate memory\n");
+ u2d = kzalloc(sizeof(*u2d), GFP_KERNEL);
+ if (!u2d)
return -ENOMEM;
- }
u2d->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(u2d->clk)) {
diff --git a/arch/arm/mach-pxa/stargate2.c b/arch/arm/mach-pxa/stargate2.c
index 7b6610e9dae4..2d45d18b1a5e 100644
--- a/arch/arm/mach-pxa/stargate2.c
+++ b/arch/arm/mach-pxa/stargate2.c
@@ -26,7 +26,7 @@
#include <linux/mtd/partitions.h>
#include <linux/i2c/pxa-i2c.h>
-#include <linux/i2c/pcf857x.h>
+#include <linux/platform_data/pcf857x.h>
#include <linux/platform_data/at24.h>
#include <linux/smc91x.h>
#include <linux/gpio.h>
diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index 13de6602966f..6a386fd6363e 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -24,7 +24,7 @@
#include <linux/mmc/host.h>
#include <linux/mfd/tc6393xb.h>
#include <linux/mfd/tmio.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/pm.h>
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index 9ad84cd01ba0..a4065966881a 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -3,6 +3,7 @@ config ARCH_ROCKCHIP
depends on ARCH_MULTI_V7
select PINCTRL
select PINCTRL_ROCKCHIP
+ select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
select ARCH_HAS_RESET_CONTROLLER
select ARM_AMBA
select ARM_GIC
@@ -16,6 +17,7 @@ config ARCH_ROCKCHIP
select ROCKCHIP_TIMER
select ARM_GLOBAL_TIMER
select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
+ select ZONE_DMA if ARM_LPAE
help
Support for Rockchip's Cortex-A9 Single-to-Quad-Core-SoCs
containing the RK2928, RK30xx and RK31xx series.
diff --git a/arch/arm/mach-rockchip/platsmp.c b/arch/arm/mach-rockchip/platsmp.c
index 3abafdbdd7f4..ecec340ca345 100644
--- a/arch/arm/mach-rockchip/platsmp.c
+++ b/arch/arm/mach-rockchip/platsmp.c
@@ -67,7 +67,7 @@ static struct reset_control *rockchip_get_core_reset(int cpu)
else
np = of_get_cpu_node(cpu, NULL);
- return of_reset_control_get(np, NULL);
+ return of_reset_control_get_exclusive(np, NULL);
}
static int pmu_set_power_domain(int pd, bool on)
@@ -182,8 +182,8 @@ static int __init rockchip_smp_prepare_sram(struct device_node *node)
ret = of_address_to_resource(node, 0, &res);
if (ret < 0) {
- pr_err("%s: could not get address for node %s\n",
- __func__, node->full_name);
+ pr_err("%s: could not get address for node %pOF\n",
+ __func__, node);
return ret;
}
diff --git a/arch/arm/mach-rockchip/rockchip.c b/arch/arm/mach-rockchip/rockchip.c
index ef0500a4c8ad..e41cabc4dc2b 100644
--- a/arch/arm/mach-rockchip/rockchip.c
+++ b/arch/arm/mach-rockchip/rockchip.c
@@ -55,7 +55,7 @@ static void __init rockchip_timer_init(void)
}
of_clk_init(NULL);
- clocksource_probe();
+ timer_probe();
}
static void __init rockchip_dt_init(void)
@@ -70,6 +70,7 @@ static const char * const rockchip_board_dt_compat[] = {
"rockchip,rk3188",
"rockchip,rk3228",
"rockchip,rk3288",
+ "rockchip,rv1108",
NULL,
};
diff --git a/arch/arm/mach-rockchip/sleep.S b/arch/arm/mach-rockchip/sleep.S
index 2eec9a341f05..9927f06f52fe 100644
--- a/arch/arm/mach-rockchip/sleep.S
+++ b/arch/arm/mach-rockchip/sleep.S
@@ -23,7 +23,7 @@
* ddr to sram for system resumeing.
* so it is ".data section".
*/
-.align
+ .align 2
ENTRY(rockchip_slp_cpu_resume)
setmode PSR_I_BIT | PSR_F_BIT | SVC_MODE, r1 @ set svc, irqs off
diff --git a/arch/arm/mach-rpc/ecard.c b/arch/arm/mach-rpc/ecard.c
index 6b279d037774..bdb5ec1cf560 100644
--- a/arch/arm/mach-rpc/ecard.c
+++ b/arch/arm/mach-rpc/ecard.c
@@ -761,19 +761,21 @@ static struct expansion_card *__init ecard_alloc_card(int type, int slot)
return ec;
}
-static ssize_t ecard_show_irq(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t irq_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct expansion_card *ec = ECARD_DEV(dev);
return sprintf(buf, "%u\n", ec->irq);
}
+static DEVICE_ATTR_RO(irq);
-static ssize_t ecard_show_dma(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t dma_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct expansion_card *ec = ECARD_DEV(dev);
return sprintf(buf, "%u\n", ec->dma);
}
+static DEVICE_ATTR_RO(dma);
-static ssize_t ecard_show_resources(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t resource_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct expansion_card *ec = ECARD_DEV(dev);
char *str = buf;
@@ -787,35 +789,39 @@ static ssize_t ecard_show_resources(struct device *dev, struct device_attribute
return str - buf;
}
+static DEVICE_ATTR_RO(resource);
-static ssize_t ecard_show_vendor(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t vendor_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct expansion_card *ec = ECARD_DEV(dev);
return sprintf(buf, "%u\n", ec->cid.manufacturer);
}
+static DEVICE_ATTR_RO(vendor);
-static ssize_t ecard_show_device(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t device_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct expansion_card *ec = ECARD_DEV(dev);
return sprintf(buf, "%u\n", ec->cid.product);
}
+static DEVICE_ATTR_RO(device);
-static ssize_t ecard_show_type(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t type_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct expansion_card *ec = ECARD_DEV(dev);
return sprintf(buf, "%s\n", ec->easi ? "EASI" : "IOC");
}
-
-static struct device_attribute ecard_dev_attrs[] = {
- __ATTR(device, S_IRUGO, ecard_show_device, NULL),
- __ATTR(dma, S_IRUGO, ecard_show_dma, NULL),
- __ATTR(irq, S_IRUGO, ecard_show_irq, NULL),
- __ATTR(resource, S_IRUGO, ecard_show_resources, NULL),
- __ATTR(type, S_IRUGO, ecard_show_type, NULL),
- __ATTR(vendor, S_IRUGO, ecard_show_vendor, NULL),
- __ATTR_NULL,
+static DEVICE_ATTR_RO(type);
+
+static struct attribute *ecard_dev_attrs[] = {
+ &dev_attr_device.attr,
+ &dev_attr_dma.attr,
+ &dev_attr_irq.attr,
+ &dev_attr_resource.attr,
+ &dev_attr_type.attr,
+ &dev_attr_vendor.attr,
+ NULL,
};
-
+ATTRIBUTE_GROUPS(ecard_dev);
int ecard_request_resources(struct expansion_card *ec)
{
@@ -1120,7 +1126,7 @@ static int ecard_match(struct device *_dev, struct device_driver *_drv)
struct bus_type ecard_bus_type = {
.name = "ecard",
- .dev_attrs = ecard_dev_attrs,
+ .dev_groups = ecard_dev_groups,
.match = ecard_match,
.probe = ecard_drv_probe,
.remove = ecard_drv_remove,
diff --git a/arch/arm/mach-rpc/include/mach/hardware.h b/arch/arm/mach-rpc/include/mach/hardware.h
index aa79fa47373a..622d4e5df029 100644
--- a/arch/arm/mach-rpc/include/mach/hardware.h
+++ b/arch/arm/mach-rpc/include/mach/hardware.h
@@ -25,8 +25,8 @@
* *_SIZE is the size of the region
* *_BASE is the virtual address
*/
-#define RAM_SIZE 0x10000000
-#define RAM_START 0x10000000
+#define RPC_RAM_SIZE 0x10000000
+#define RPC_RAM_START 0x10000000
#define EASI_SIZE 0x08000000 /* EASI I/O */
#define EASI_START 0x08000000
diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig
index 4b1690acb6a5..b198be7d32b6 100644
--- a/arch/arm/mach-s3c24xx/Kconfig
+++ b/arch/arm/mach-s3c24xx/Kconfig
@@ -229,7 +229,7 @@ config ARCH_H1940
config H1940BT
tristate "Control the state of H1940 bluetooth chip"
depends on ARCH_H1940
- select RFKILL
+ depends on RFKILL
help
This is a simple driver that is able to control
the state of built in bluetooth chip on h1940.
@@ -394,7 +394,7 @@ config MACH_SMDK2416
config MACH_S3C2416_DT
bool "Samsung S3C2416 machine using devicetree"
- select CLKSRC_OF
+ select TIMER_OF
select USE_OF
select PINCTRL
select PINCTRL_S3C24XX
diff --git a/arch/arm/mach-s3c24xx/common-smdk.c b/arch/arm/mach-s3c24xx/common-smdk.c
index 9e0bc46e90ec..0e116c92bf01 100644
--- a/arch/arm/mach-s3c24xx/common-smdk.c
+++ b/arch/arm/mach-s3c24xx/common-smdk.c
@@ -23,7 +23,7 @@
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
#include <linux/io.h>
diff --git a/arch/arm/mach-s3c24xx/common.c b/arch/arm/mach-s3c24xx/common.c
index b59f4f4f256f..5b6b94ef41e2 100644
--- a/arch/arm/mach-s3c24xx/common.c
+++ b/arch/arm/mach-s3c24xx/common.c
@@ -173,7 +173,7 @@ static unsigned long s3c24xx_read_idcode_v5(void)
return gs;
#endif
-#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413)
+#if defined(CONFIG_CPU_S3C2412)
return __raw_readl(S3C2412_GSTATUS1);
#else
return 1UL; /* don't look like an 2400 */
diff --git a/arch/arm/mach-s3c24xx/include/mach/regs-clock.h b/arch/arm/mach-s3c24xx/include/mach/regs-clock.h
index 3db6c10de023..ae4a3e0f3ba2 100644
--- a/arch/arm/mach-s3c24xx/include/mach/regs-clock.h
+++ b/arch/arm/mach-s3c24xx/include/mach/regs-clock.h
@@ -77,7 +77,7 @@
#endif /* CONFIG_CPU_S3C2440 or CONFIG_CPU_S3C2442 */
-#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413)
+#if defined(CONFIG_CPU_S3C2412)
#define S3C2412_OSCSET S3C2410_CLKREG(0x18)
#define S3C2412_CLKSRC S3C2410_CLKREG(0x1C)
@@ -141,7 +141,7 @@
#define S3C2412_CLKSRC_UREFCLK_EXTCLK (1<<12)
#define S3C2412_CLKSRC_EREFCLK_EXTCLK (1<<14)
-#endif /* CONFIG_CPU_S3C2412 | CONFIG_CPU_S3C2413 */
+#endif /* CONFIG_CPU_S3C2412 */
#define S3C2416_CLKDIV2 S3C2410_CLKREG(0x28)
diff --git a/arch/arm/mach-s3c24xx/mach-anubis.c b/arch/arm/mach-s3c24xx/mach-anubis.c
index 029ef1b58925..c14cab361922 100644
--- a/arch/arm/mach-s3c24xx/mach-anubis.c
+++ b/arch/arm/mach-s3c24xx/mach-anubis.c
@@ -40,7 +40,7 @@
#include <linux/platform_data/i2c-s3c2410.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
diff --git a/arch/arm/mach-s3c24xx/mach-at2440evb.c b/arch/arm/mach-s3c24xx/mach-at2440evb.c
index 7b28eb623fc1..ebdbafb9382a 100644
--- a/arch/arm/mach-s3c24xx/mach-at2440evb.c
+++ b/arch/arm/mach-s3c24xx/mach-at2440evb.c
@@ -41,7 +41,7 @@
#include <linux/platform_data/i2c-s3c2410.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
diff --git a/arch/arm/mach-s3c24xx/mach-bast.c b/arch/arm/mach-s3c24xx/mach-bast.c
index 5185036765db..704dc84b3480 100644
--- a/arch/arm/mach-s3c24xx/mach-bast.c
+++ b/arch/arm/mach-s3c24xx/mach-bast.c
@@ -28,7 +28,7 @@
#include <linux/serial_8250.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
diff --git a/arch/arm/mach-s3c24xx/mach-gta02.c b/arch/arm/mach-s3c24xx/mach-gta02.c
index b0ed401da3a3..afe18baf0c84 100644
--- a/arch/arm/mach-s3c24xx/mach-gta02.c
+++ b/arch/arm/mach-s3c24xx/mach-gta02.c
@@ -50,7 +50,7 @@
#include <linux/mfd/pcf50633/pmic.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
diff --git a/arch/arm/mach-s3c24xx/mach-jive.c b/arch/arm/mach-s3c24xx/mach-jive.c
index f5b5c49b56ac..17821976f769 100644
--- a/arch/arm/mach-s3c24xx/mach-jive.c
+++ b/arch/arm/mach-s3c24xx/mach-jive.c
@@ -43,7 +43,7 @@
#include <asm/mach-types.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
diff --git a/arch/arm/mach-s3c24xx/mach-mini2440.c b/arch/arm/mach-s3c24xx/mach-mini2440.c
index 71af8d2fd320..04c9f488c498 100644
--- a/arch/arm/mach-s3c24xx/mach-mini2440.c
+++ b/arch/arm/mach-s3c24xx/mach-mini2440.c
@@ -49,7 +49,7 @@
#include <linux/platform_data/usb-s3c2410_udc.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
@@ -287,7 +287,7 @@ static struct s3c2410_platform_nand mini2440_nand_info __initdata = {
.nr_sets = ARRAY_SIZE(mini2440_nand_sets),
.sets = mini2440_nand_sets,
.ignore_unset_ecc = 1,
- .ecc_mode = NAND_ECC_SOFT,
+ .ecc_mode = NAND_ECC_HW,
};
/* DM9000AEP 10/100 ethernet controller */
diff --git a/arch/arm/mach-s3c24xx/mach-osiris-dvs.c b/arch/arm/mach-s3c24xx/mach-osiris-dvs.c
index 262ab0744748..6cac7da15e2b 100644
--- a/arch/arm/mach-s3c24xx/mach-osiris-dvs.c
+++ b/arch/arm/mach-s3c24xx/mach-osiris-dvs.c
@@ -17,7 +17,7 @@
#include <linux/cpufreq.h>
#include <linux/gpio.h>
-#include <linux/i2c/tps65010.h>
+#include <linux/mfd/tps65010.h>
#include <plat/cpu-freq.h>
#include <mach/gpio-samsung.h>
diff --git a/arch/arm/mach-s3c24xx/mach-osiris.c b/arch/arm/mach-s3c24xx/mach-osiris.c
index 70b0eb7d3134..ed3b22ceef06 100644
--- a/arch/arm/mach-s3c24xx/mach-osiris.c
+++ b/arch/arm/mach-s3c24xx/mach-osiris.c
@@ -24,7 +24,7 @@
#include <linux/io.h>
#include <linux/platform_device.h>
-#include <linux/i2c/tps65010.h>
+#include <linux/mfd/tps65010.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -36,7 +36,7 @@
#include <linux/platform_data/i2c-s3c2410.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
diff --git a/arch/arm/mach-s3c24xx/mach-qt2410.c b/arch/arm/mach-s3c24xx/mach-qt2410.c
index 868c82087403..84e3a9c53184 100644
--- a/arch/arm/mach-s3c24xx/mach-qt2410.c
+++ b/arch/arm/mach-s3c24xx/mach-qt2410.c
@@ -36,7 +36,7 @@
#include <linux/spi/spi_gpio.h>
#include <linux/io.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
diff --git a/arch/arm/mach-s3c24xx/mach-rx3715.c b/arch/arm/mach-s3c24xx/mach-rx3715.c
index a39fb9780dd3..b5ba615cf9dd 100644
--- a/arch/arm/mach-s3c24xx/mach-rx3715.c
+++ b/arch/arm/mach-s3c24xx/mach-rx3715.c
@@ -27,7 +27,7 @@
#include <linux/serial.h>
#include <linux/io.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
diff --git a/arch/arm/mach-s3c24xx/mach-smdk2443.c b/arch/arm/mach-s3c24xx/mach-smdk2443.c
index 87fe5c5b8073..474cd81aa8ad 100644
--- a/arch/arm/mach-s3c24xx/mach-smdk2443.c
+++ b/arch/arm/mach-s3c24xx/mach-smdk2443.c
@@ -111,9 +111,6 @@ static struct platform_device *smdk2443_devices[] __initdata = {
&s3c_device_wdt,
&s3c_device_i2c0,
&s3c_device_hsmmc1,
-#ifdef CONFIG_SND_SOC_SMDK2443_WM9710
- &s3c_device_ac97,
-#endif
&s3c2443_device_dma,
};
@@ -133,11 +130,6 @@ static void __init smdk2443_init_time(void)
static void __init smdk2443_machine_init(void)
{
s3c_i2c0_set_platdata(NULL);
-
-#ifdef CONFIG_SND_SOC_SMDK2443_WM9710
- s3c24xx_ac97_setup_gpio(S3C24XX_AC97_GPE0);
-#endif
-
platform_add_devices(smdk2443_devices, ARRAY_SIZE(smdk2443_devices));
smdk_machine_init();
}
diff --git a/arch/arm/mach-s3c24xx/mach-vstms.c b/arch/arm/mach-s3c24xx/mach-vstms.c
index f5e6322145fa..1adc957edf0f 100644
--- a/arch/arm/mach-s3c24xx/mach-vstms.c
+++ b/arch/arm/mach-s3c24xx/mach-vstms.c
@@ -20,7 +20,7 @@
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
#include <linux/memblock.h>
diff --git a/arch/arm/mach-s3c24xx/sleep.S b/arch/arm/mach-s3c24xx/sleep.S
index d833d616bd2e..b859268fa8da 100644
--- a/arch/arm/mach-s3c24xx/sleep.S
+++ b/arch/arm/mach-s3c24xx/sleep.S
@@ -33,10 +33,11 @@
#include <mach/regs-gpio.h>
#include <mach/regs-clock.h>
-/* CONFIG_DEBUG_RESUME is dangerous if your bootloader does not
+/*
+ * S3C24XX_DEBUG_RESUME is dangerous if your bootloader does not
* reset the UART configuration, only enable if you really need this!
-*/
-//#define CONFIG_DEBUG_RESUME
+ */
+//#define S3C24XX_DEBUG_RESUME
.text
@@ -71,13 +72,13 @@ ENTRY(s3c_cpu_resume)
str r12, [ r14, #0x54 ]
#endif
-#ifdef CONFIG_DEBUG_RESUME
+#ifdef S3C24XX_DEBUG_RESUME
mov r3, #'L'
strb r3, [ r2, #S3C2410_UTXH ]
1001:
ldrb r14, [ r3, #S3C2410_UTRSTAT ]
tst r14, #S3C2410_UTRSTAT_TXE
beq 1001b
-#endif /* CONFIG_DEBUG_RESUME */
+#endif /* S3C24XX_DEBUG_RESUME */
b cpu_resume
diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig
index 459214fa20b4..afd1f20be49e 100644
--- a/arch/arm/mach-s3c64xx/Kconfig
+++ b/arch/arm/mach-s3c64xx/Kconfig
@@ -40,7 +40,6 @@ config CPU_S3C6410
config S3C64XX_PL080
def_bool DMADEVICES
- select ARM_AMBA
select AMBA_PL08X
config S3C64XX_SETUP_SDHCI
@@ -336,7 +335,7 @@ config MACH_WLF_CRAGG_6410
config MACH_S3C64XX_DT
bool "Samsung S3C6400/S3C6410 machine using Device Tree"
- select CLKSRC_OF
+ select TIMER_OF
select CPU_S3C6400
select CPU_S3C6410
select PINCTRL
diff --git a/arch/arm/mach-s3c64xx/pl080.c b/arch/arm/mach-s3c64xx/pl080.c
index 261820a855ec..66fc774b70ec 100644
--- a/arch/arm/mach-s3c64xx/pl080.c
+++ b/arch/arm/mach-s3c64xx/pl080.c
@@ -137,16 +137,10 @@ static const struct dma_slave_map s3c64xx_dma0_slave_map[] = {
};
struct pl08x_platform_data s3c64xx_dma0_plat_data = {
- .memcpy_channel = {
- .bus_id = "memcpy",
- .cctl_memcpy =
- (PL080_BSIZE_4 << PL080_CONTROL_SB_SIZE_SHIFT |
- PL080_BSIZE_4 << PL080_CONTROL_DB_SIZE_SHIFT |
- PL080_WIDTH_32BIT << PL080_CONTROL_SWIDTH_SHIFT |
- PL080_WIDTH_32BIT << PL080_CONTROL_DWIDTH_SHIFT |
- PL080_CONTROL_PROT_BUFF | PL080_CONTROL_PROT_CACHE |
- PL080_CONTROL_PROT_SYS),
- },
+ .memcpy_burst_size = PL08X_BURST_SZ_4,
+ .memcpy_bus_width = PL08X_BUS_WIDTH_32_BITS,
+ .memcpy_prot_buff = true,
+ .memcpy_prot_cache = true,
.lli_buses = PL08X_AHB1,
.mem_buses = PL08X_AHB1,
.get_xfer_signal = pl08x_get_xfer_signal,
@@ -238,16 +232,10 @@ static const struct dma_slave_map s3c64xx_dma1_slave_map[] = {
};
struct pl08x_platform_data s3c64xx_dma1_plat_data = {
- .memcpy_channel = {
- .bus_id = "memcpy",
- .cctl_memcpy =
- (PL080_BSIZE_4 << PL080_CONTROL_SB_SIZE_SHIFT |
- PL080_BSIZE_4 << PL080_CONTROL_DB_SIZE_SHIFT |
- PL080_WIDTH_32BIT << PL080_CONTROL_SWIDTH_SHIFT |
- PL080_WIDTH_32BIT << PL080_CONTROL_DWIDTH_SHIFT |
- PL080_CONTROL_PROT_BUFF | PL080_CONTROL_PROT_CACHE |
- PL080_CONTROL_PROT_SYS),
- },
+ .memcpy_burst_size = PL08X_BURST_SZ_4,
+ .memcpy_bus_width = PL08X_BUS_WIDTH_32_BITS,
+ .memcpy_prot_buff = true,
+ .memcpy_prot_cache = true,
.lli_buses = PL08X_AHB1,
.mem_buses = PL08X_AHB1,
.get_xfer_signal = pl08x_get_xfer_signal,
diff --git a/arch/arm/mach-sa1100/clock.c b/arch/arm/mach-sa1100/clock.c
index 0db46895c82a..7d52cd97d96e 100644
--- a/arch/arm/mach-sa1100/clock.c
+++ b/arch/arm/mach-sa1100/clock.c
@@ -35,6 +35,31 @@ struct clk clk_##_name = { \
static DEFINE_SPINLOCK(clocks_lock);
+/* Dummy clk routine to build generic kernel parts that may be using them */
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+ return clk_get_rate(clk);
+}
+EXPORT_SYMBOL(clk_round_rate);
+
+int clk_set_rate(struct clk *clk, unsigned long rate)
+{
+ return 0;
+}
+EXPORT_SYMBOL(clk_set_rate);
+
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+ return 0;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
+struct clk *clk_get_parent(struct clk *clk)
+{
+ return NULL;
+}
+EXPORT_SYMBOL(clk_get_parent);
+
static void clk_gpio27_enable(struct clk *clk)
{
/*
diff --git a/arch/arm/mach-sa1100/include/mach/mtd-xip.h b/arch/arm/mach-sa1100/include/mach/mtd-xip.h
index b3d684098fbf..cb76096a2e36 100644
--- a/arch/arm/mach-sa1100/include/mach/mtd-xip.h
+++ b/arch/arm/mach-sa1100/include/mach/mtd-xip.h
@@ -20,7 +20,7 @@
#define xip_irqpending() (ICIP & ICMR)
/* we sample OSCR and convert desired delta to usec (1/4 ~= 1000000/3686400) */
-#define xip_currtime() (OSCR)
-#define xip_elapsed_since(x) (signed)((OSCR - (x)) / 4)
+#define xip_currtime() readl_relaxed(OSCR)
+#define xip_elapsed_since(x) (signed)((readl_relaxed(OSCR) - (x)) / 4)
#endif /* __ARCH_SA1100_MTD_XIP_H__ */
diff --git a/arch/arm/mach-sa1100/jornada720_ssp.c b/arch/arm/mach-sa1100/jornada720_ssp.c
index b143c4659346..7fc11a3c17b4 100644
--- a/arch/arm/mach-sa1100/jornada720_ssp.c
+++ b/arch/arm/mach-sa1100/jornada720_ssp.c
@@ -33,7 +33,7 @@ static unsigned long jornada_ssp_flags;
* we need to reverse all data we receive from the mcu due to its physical location
* returns : 01110111 -> 11101110
*/
-u8 inline jornada_ssp_reverse(u8 byte)
+inline u8 jornada_ssp_reverse(u8 byte)
{
return
((0x80 & byte) >> 7) |
diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index ad7d604ff001..280e7312a9e1 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -1,9 +1,6 @@
config ARCH_SHMOBILE
bool
-config ARCH_SHMOBILE_MULTI
- bool
-
config PM_RMOBILE
bool
select PM
@@ -34,7 +31,6 @@ menuconfig ARCH_RENESAS
depends on ARCH_MULTI_V7 && MMU
select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
select ARCH_SHMOBILE
- select ARCH_SHMOBILE_MULTI
select ARM_GIC
select GPIOLIB
select HAVE_ARM_SCU if SMP
diff --git a/arch/arm/mach-shmobile/pm-rcar-gen2.c b/arch/arm/mach-shmobile/pm-rcar-gen2.c
index 0178da7ace82..e5f215c8b218 100644
--- a/arch/arm/mach-shmobile/pm-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/pm-rcar-gen2.c
@@ -11,7 +11,9 @@
*/
#include <linux/kernel.h>
+#include <linux/ioport.h>
#include <linux/of.h>
+#include <linux/of_address.h>
#include <linux/smp.h>
#include <linux/soc/renesas/rcar-sysc.h>
#include <asm/io.h>
@@ -69,8 +71,9 @@ void __init rcar_gen2_pm_init(void)
struct device_node *np, *cpus;
bool has_a7 = false;
bool has_a15 = false;
- phys_addr_t boot_vector_addr = ICRAM1;
+ struct resource res;
u32 syscier = 0;
+ int error;
if (once++)
return;
@@ -91,14 +94,38 @@ void __init rcar_gen2_pm_init(void)
else if (of_machine_is_compatible("renesas,r8a7791"))
syscier = 0x00111003;
+ np = of_find_compatible_node(NULL, NULL, "renesas,smp-sram");
+ if (!np) {
+ /* No smp-sram in DT, fall back to hardcoded address */
+ res = (struct resource)DEFINE_RES_MEM(ICRAM1,
+ shmobile_boot_size);
+ goto map;
+ }
+
+ error = of_address_to_resource(np, 0, &res);
+ if (error) {
+ pr_err("Failed to get smp-sram address: %d\n", error);
+ return;
+ }
+
+map:
/* RAM for jump stub, because BAR requires 256KB aligned address */
- p = ioremap_nocache(boot_vector_addr, shmobile_boot_size);
+ if (res.start & (256 * 1024 - 1) ||
+ resource_size(&res) < shmobile_boot_size) {
+ pr_err("Invalid smp-sram region\n");
+ return;
+ }
+
+ p = ioremap(res.start, resource_size(&res));
+ if (!p)
+ return;
+
memcpy_toio(p, shmobile_boot_vector, shmobile_boot_size);
iounmap(p);
/* setup reset vectors */
p = ioremap_nocache(RST, 0x63);
- bar = phys_to_sbar(boot_vector_addr);
+ bar = phys_to_sbar(res.start);
if (has_a15) {
writel_relaxed(bar, p + CA15BAR);
writel_relaxed(bar | SBAR_BAREN, p + CA15BAR);
diff --git a/arch/arm/mach-shmobile/pm-rmobile.c b/arch/arm/mach-shmobile/pm-rmobile.c
index 45a195501b78..3a4ed4c33a68 100644
--- a/arch/arm/mach-shmobile/pm-rmobile.c
+++ b/arch/arm/mach-shmobile/pm-rmobile.c
@@ -130,7 +130,7 @@ static void rmobile_init_pm_domain(struct rmobile_pm_domain *rmobile_pd)
struct generic_pm_domain *genpd = &rmobile_pd->genpd;
struct dev_power_governor *gov = rmobile_pd->gov;
- genpd->flags = GENPD_FLAG_PM_CLK;
+ genpd->flags |= GENPD_FLAG_PM_CLK;
genpd->dev_ops.active_wakeup = rmobile_pd_active_wakeup;
genpd->power_off = rmobile_pd_power_down;
genpd->power_on = rmobile_pd_power_up;
@@ -140,14 +140,6 @@ static void rmobile_init_pm_domain(struct rmobile_pm_domain *rmobile_pd)
pm_genpd_init(genpd, gov ? : &simple_qos_governor, false);
}
-static int rmobile_pd_suspend_busy(void)
-{
- /*
- * This domain should not be turned off.
- */
- return -EBUSY;
-}
-
static int rmobile_pd_suspend_console(void)
{
/*
@@ -203,8 +195,7 @@ static void __init add_special_pd(struct device_node *np, enum pd_types type)
return;
}
- pr_debug("Special PM domain %s type %d for %s\n", pd->name, type,
- np->full_name);
+ pr_debug("Special PM domain %s type %d for %pOF\n", pd->name, type, np);
special_pds[num_special_pds].pd = pd;
special_pds[num_special_pds].type = type;
@@ -260,8 +251,7 @@ static void __init rmobile_setup_pm_domain(struct device_node *np,
* only be turned off if the CPU is not in use.
*/
pr_debug("PM domain %s contains CPU\n", name);
- pd->gov = &pm_domain_always_on_gov;
- pd->suspend = rmobile_pd_suspend_busy;
+ pd->genpd.flags |= GENPD_FLAG_ALWAYS_ON;
break;
case PD_CONSOLE:
@@ -277,8 +267,7 @@ static void __init rmobile_setup_pm_domain(struct device_node *np,
* is not in use.
*/
pr_debug("PM domain %s contains Coresight-ETM\n", name);
- pd->gov = &pm_domain_always_on_gov;
- pd->suspend = rmobile_pd_suspend_busy;
+ pd->genpd.flags |= GENPD_FLAG_ALWAYS_ON;
break;
case PD_MEMCTL:
@@ -287,8 +276,7 @@ static void __init rmobile_setup_pm_domain(struct device_node *np,
* should only be turned off if memory is not in use.
*/
pr_debug("PM domain %s contains MEMCTL\n", name);
- pd->gov = &pm_domain_always_on_gov;
- pd->suspend = rmobile_pd_suspend_busy;
+ pd->genpd.flags |= GENPD_FLAG_ALWAYS_ON;
break;
case PD_NORMAL:
@@ -342,13 +330,13 @@ static int __init rmobile_init_pm_domains(void)
for_each_compatible_node(np, NULL, "renesas,sysc-rmobile") {
base = of_iomap(np, 0);
if (!base) {
- pr_warn("%s cannot map reg 0\n", np->full_name);
+ pr_warn("%pOF cannot map reg 0\n", np);
continue;
}
pmd = of_get_child_by_name(np, "pm-domains");
if (!pmd) {
- pr_warn("%s lacks pm-domains node\n", np->full_name);
+ pr_warn("%pOF lacks pm-domains node\n", np);
continue;
}
diff --git a/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c b/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
index 73e3adbc1330..44438f344dc8 100644
--- a/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
@@ -67,8 +67,12 @@ static int regulator_quirk_notify(struct notifier_block *nb,
{
struct device *dev = data;
struct i2c_client *client;
+ static bool done;
u32 mon;
+ if (done)
+ return 0;
+
mon = ioread32(irqc + IRQC_MONITOR);
dev_dbg(dev, "%s: %ld, IRQC_MONITOR = 0x%x\n", __func__, action, mon);
if (mon & REGULATOR_IRQ_MASK)
@@ -99,7 +103,7 @@ static int regulator_quirk_notify(struct notifier_block *nb,
remove:
dev_info(dev, "IRQ2 is not asserted, removing quirk\n");
- bus_unregister_notifier(&i2c_bus_type, nb);
+ done = true;
iounmap(irqc);
return 0;
}
diff --git a/arch/arm/mach-shmobile/setup-rcar-gen2.c b/arch/arm/mach-shmobile/setup-rcar-gen2.c
index 52d466b75973..7ab1690fab82 100644
--- a/arch/arm/mach-shmobile/setup-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/setup-rcar-gen2.c
@@ -29,17 +29,29 @@
#include "common.h"
#include "rcar-gen2.h"
+static const struct of_device_id cpg_matches[] __initconst = {
+ { .compatible = "renesas,rcar-gen2-cpg-clocks", },
+ { .compatible = "renesas,r8a7743-cpg-mssr", .data = "extal" },
+ { .compatible = "renesas,r8a7790-cpg-mssr", .data = "extal" },
+ { .compatible = "renesas,r8a7791-cpg-mssr", .data = "extal" },
+ { .compatible = "renesas,r8a7793-cpg-mssr", .data = "extal" },
+ { /* sentinel */ }
+};
+
static unsigned int __init get_extal_freq(void)
{
+ const struct of_device_id *match;
struct device_node *cpg, *extal;
u32 freq = 20000000;
+ int idx = 0;
- cpg = of_find_compatible_node(NULL, NULL,
- "renesas,rcar-gen2-cpg-clocks");
+ cpg = of_find_matching_node_and_match(NULL, cpg_matches, &match);
if (!cpg)
return freq;
- extal = of_parse_phandle(cpg, "clocks", 0);
+ if (match->data)
+ idx = of_property_match_string(cpg, "clock-names", match->data);
+ extal = of_parse_phandle(cpg, "clocks", idx);
of_node_put(cpg);
if (!extal)
return freq;
@@ -58,7 +70,8 @@ void __init rcar_gen2_timer_init(void)
void __iomem *base;
u32 freq;
- if (of_machine_is_compatible("renesas,r8a7792") ||
+ if (of_machine_is_compatible("renesas,r8a7745") ||
+ of_machine_is_compatible("renesas,r8a7792") ||
of_machine_is_compatible("renesas,r8a7794")) {
freq = 260000000 / 8; /* ZS / 8 */
/* CNTVOFF has to be initialized either from non-secure
@@ -113,7 +126,7 @@ void __init rcar_gen2_timer_init(void)
#endif /* CONFIG_ARM_ARCH_TIMER */
of_clk_init(NULL);
- clocksource_probe();
+ timer_probe();
}
struct memory_reserve_config {
diff --git a/arch/arm/mach-spear/spear13xx.c b/arch/arm/mach-spear/spear13xx.c
index ca2f6a82a414..31c43cabf362 100644
--- a/arch/arm/mach-spear/spear13xx.c
+++ b/arch/arm/mach-spear/spear13xx.c
@@ -124,5 +124,5 @@ void __init spear13xx_timer_init(void)
clk_put(pclk);
spear_setup_of_timer();
- clocksource_probe();
+ timer_probe();
}
diff --git a/arch/arm/mach-spear/spear3xx.c b/arch/arm/mach-spear/spear3xx.c
index 23394ac76cf2..8537fcffe5a8 100644
--- a/arch/arm/mach-spear/spear3xx.c
+++ b/arch/arm/mach-spear/spear3xx.c
@@ -44,16 +44,10 @@ struct pl022_ssp_controller pl022_plat_data = {
/* dmac device registration */
struct pl08x_platform_data pl080_plat_data = {
- .memcpy_channel = {
- .bus_id = "memcpy",
- .cctl_memcpy =
- (PL080_BSIZE_16 << PL080_CONTROL_SB_SIZE_SHIFT | \
- PL080_BSIZE_16 << PL080_CONTROL_DB_SIZE_SHIFT | \
- PL080_WIDTH_32BIT << PL080_CONTROL_SWIDTH_SHIFT | \
- PL080_WIDTH_32BIT << PL080_CONTROL_DWIDTH_SHIFT | \
- PL080_CONTROL_PROT_BUFF | PL080_CONTROL_PROT_CACHE | \
- PL080_CONTROL_PROT_SYS),
- },
+ .memcpy_burst_size = PL08X_BURST_SZ_16,
+ .memcpy_bus_width = PL08X_BUS_WIDTH_32_BITS,
+ .memcpy_prot_buff = true,
+ .memcpy_prot_cache = true,
.lli_buses = PL08X_AHB1,
.mem_buses = PL08X_AHB1,
.get_xfer_signal = pl080_get_signal,
diff --git a/arch/arm/mach-spear/spear6xx.c b/arch/arm/mach-spear/spear6xx.c
index ccf3573b831c..c5fc110134ba 100644
--- a/arch/arm/mach-spear/spear6xx.c
+++ b/arch/arm/mach-spear/spear6xx.c
@@ -322,16 +322,10 @@ static struct pl08x_channel_data spear600_dma_info[] = {
};
static struct pl08x_platform_data spear6xx_pl080_plat_data = {
- .memcpy_channel = {
- .bus_id = "memcpy",
- .cctl_memcpy =
- (PL080_BSIZE_16 << PL080_CONTROL_SB_SIZE_SHIFT | \
- PL080_BSIZE_16 << PL080_CONTROL_DB_SIZE_SHIFT | \
- PL080_WIDTH_32BIT << PL080_CONTROL_SWIDTH_SHIFT | \
- PL080_WIDTH_32BIT << PL080_CONTROL_DWIDTH_SHIFT | \
- PL080_CONTROL_PROT_BUFF | PL080_CONTROL_PROT_CACHE | \
- PL080_CONTROL_PROT_SYS),
- },
+ .memcpy_burst_size = PL08X_BURST_SZ_16,
+ .memcpy_bus_width = PL08X_BUS_WIDTH_32_BITS,
+ .memcpy_prot_buff = true,
+ .memcpy_prot_cache = true,
.lli_buses = PL08X_AHB1,
.mem_buses = PL08X_AHB1,
.get_xfer_signal = pl080_get_signal,
diff --git a/arch/arm/mach-stm32/Kconfig b/arch/arm/mach-stm32/Kconfig
index 2d1419eb0896..0d1889bbde58 100644
--- a/arch/arm/mach-stm32/Kconfig
+++ b/arch/arm/mach-stm32/Kconfig
@@ -15,6 +15,11 @@ config MACH_STM32F429
depends on ARCH_STM32
default y
+config MACH_STM32F469
+ bool "STMicrolectronics STM32F469"
+ depends on ARCH_STM32
+ default y
+
config MACH_STM32F746
bool "STMicrolectronics STM32F746"
depends on ARCH_STM32
diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c
index f44e3acb5c90..7ab353fb25f2 100644
--- a/arch/arm/mach-sunxi/sunxi.c
+++ b/arch/arm/mach-sunxi/sunxi.c
@@ -42,7 +42,7 @@ static void __init sun6i_timer_init(void)
of_clk_init(NULL);
if (IS_ENABLED(CONFIG_RESET_CONTROLLER))
sun6i_reset_init();
- clocksource_probe();
+ timer_probe();
}
DT_MACHINE_START(SUN6I_DT, "Allwinner sun6i (A31) Family")
diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index 329f01c5b6f8..c8368d647741 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -13,5 +13,7 @@ menuconfig ARCH_TEGRA
select ARCH_HAS_RESET_CONTROLLER
select RESET_CONTROLLER
select SOC_BUS
+ select ZONE_DMA if ARM_LPAE
+ select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
help
This enables support for NVIDIA Tegra based systems.
diff --git a/arch/arm/mach-tegra/cpuidle-tegra114.c b/arch/arm/mach-tegra/cpuidle-tegra114.c
index d3aa9be16621..e3fbcfedf845 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra114.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra114.c
@@ -60,7 +60,7 @@ static int tegra114_idle_power_down(struct cpuidle_device *dev,
return index;
}
-static void tegra114_idle_enter_freeze(struct cpuidle_device *dev,
+static void tegra114_idle_enter_s2idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
{
@@ -77,7 +77,7 @@ static struct cpuidle_driver tegra_idle_driver = {
#ifdef CONFIG_PM_SLEEP
[1] = {
.enter = tegra114_idle_power_down,
- .enter_freeze = tegra114_idle_enter_freeze,
+ .enter_s2idle = tegra114_idle_enter_s2idle,
.exit_latency = 500,
.target_residency = 1000,
.flags = CPUIDLE_FLAG_TIMER_STOP,
diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c
index 649e9e8c7bcc..02e712d2ea30 100644
--- a/arch/arm/mach-tegra/tegra.c
+++ b/arch/arm/mach-tegra/tegra.c
@@ -84,35 +84,8 @@ static void __init tegra_dt_init_irq(void)
static void __init tegra_dt_init(void)
{
- struct soc_device_attribute *soc_dev_attr;
- struct soc_device *soc_dev;
- struct device *parent = NULL;
+ struct device *parent = tegra_soc_device_register();
- soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
- if (!soc_dev_attr)
- goto out;
-
- soc_dev_attr->family = kasprintf(GFP_KERNEL, "Tegra");
- soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%d",
- tegra_sku_info.revision);
- soc_dev_attr->soc_id = kasprintf(GFP_KERNEL, "%u", tegra_get_chip_id());
-
- soc_dev = soc_device_register(soc_dev_attr);
- if (IS_ERR(soc_dev)) {
- kfree(soc_dev_attr->family);
- kfree(soc_dev_attr->revision);
- kfree(soc_dev_attr->soc_id);
- kfree(soc_dev_attr);
- goto out;
- }
-
- parent = soc_device_to_device(soc_dev);
-
- /*
- * Finished with the static registrations now; fill in the missing
- * devices
- */
-out:
of_platform_default_populate(NULL, NULL, parent);
}
diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c
index a4910ea6811a..048f15e8c669 100644
--- a/arch/arm/mach-u300/core.c
+++ b/arch/arm/mach-u300/core.c
@@ -407,7 +407,7 @@ static const char * u300_board_compat[] = {
DT_MACHINE_START(U300_DT, "U300 S335/B335 (Device Tree)")
.map_io = u300_map_io,
.init_irq = u300_init_irq_dt,
- .init_time = clocksource_probe,
+ .init_time = timer_probe,
.init_machine = u300_init_machine_dt,
.restart = u300_restart,
.dt_compat = u300_board_compat,
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 28083ef72819..57058ac46f49 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -32,6 +32,7 @@
#include <asm/mach/arch.h>
#include "db8500-regs.h"
+#include "pm_domains.h"
static int __init ux500_l2x0_unlock(void)
{
@@ -133,6 +134,7 @@ static irqreturn_t db8500_pmu_handler(int irq, void *dev, irq_handler_t handler)
static struct arm_pmu_platdata db8500_pmu_platdata = {
.handle_irq = db8500_pmu_handler,
+ .irq_flags = IRQF_NOBALANCING | IRQF_NO_THREAD,
};
static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
@@ -156,6 +158,9 @@ static const struct of_device_id u8500_local_bus_nodes[] = {
static void __init u8500_init_machine(void)
{
+ /* Initialize ux500 power domains */
+ ux500_pm_domains_init();
+
/* automatically probe child nodes of dbx5x0 devices */
if (of_machine_is_compatible("st-ericsson,u8540"))
of_platform_populate(NULL, u8500_local_bus_nodes,
diff --git a/arch/arm/mach-ux500/pm.c b/arch/arm/mach-ux500/pm.c
index a970e7fcba9e..f6c33a0c1c61 100644
--- a/arch/arm/mach-ux500/pm.c
+++ b/arch/arm/mach-ux500/pm.c
@@ -19,7 +19,6 @@
#include <linux/of_address.h>
#include "db8500-regs.h"
-#include "pm_domains.h"
/* ARM WFI Standby signal register */
#define PRCM_ARM_WFI_STANDBY (prcmu_base + 0x130)
@@ -203,7 +202,4 @@ void __init ux500_pm_init(u32 phy_base, u32 size)
/* Set up ux500 suspend callbacks. */
suspend_set_ops(UX500_SUSPEND_OPS);
-
- /* Initialize ux500 power domains */
- ux500_pm_domains_init();
}
diff --git a/arch/arm/mach-w90x900/clock.c b/arch/arm/mach-w90x900/clock.c
index ac6fd1a2cb59..3f93fac98d97 100644
--- a/arch/arm/mach-w90x900/clock.c
+++ b/arch/arm/mach-w90x900/clock.c
@@ -93,3 +93,32 @@ void nuc900_subclk_enable(struct clk *clk, int enable)
__raw_writel(clken, W90X900_VA_CLKPWR + SUBCLK);
}
+
+/* dummy functions, should not be called */
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+ WARN_ON(clk);
+ return 0;
+}
+EXPORT_SYMBOL(clk_round_rate);
+
+int clk_set_rate(struct clk *clk, unsigned long rate)
+{
+ WARN_ON(clk);
+ return 0;
+}
+EXPORT_SYMBOL(clk_set_rate);
+
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+ WARN_ON(clk);
+ return 0;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
+struct clk *clk_get_parent(struct clk *clk)
+{
+ WARN_ON(clk);
+ return NULL;
+}
+EXPORT_SYMBOL(clk_get_parent);
diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c
index ed118648313f..6aba9ebf8041 100644
--- a/arch/arm/mach-zynq/common.c
+++ b/arch/arm/mach-zynq/common.c
@@ -150,7 +150,7 @@ static void __init zynq_timer_init(void)
{
zynq_clock_init();
of_clk_init(NULL);
- clocksource_probe();
+ timer_probe();
}
static struct map_desc zynq_cortex_a9_scu_map __initdata = {
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index c6c4c9c8824b..60cdfdc151aa 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -679,7 +679,7 @@ config ARCH_DMA_ADDR_T_64BIT
bool
config ARM_THUMB
- bool "Support Thumb user binaries" if !CPU_THUMBONLY
+ bool "Support Thumb user binaries" if !CPU_THUMBONLY && EXPERT
depends on CPU_THUMB_CAPABLE
default y
help
@@ -690,6 +690,10 @@ config ARM_THUMB
instruction set resulting in smaller binaries at the expense of
slightly less efficient code.
+ If this option is disabled, and you run userspace that switches to
+ Thumb mode, signal handling will not work correctly, resulting in
+ segmentation faults or illegal instruction aborts.
+
If you don't know what this all is, saying Y is a safe choice.
config ARM_THUMBEE
@@ -1045,8 +1049,8 @@ config ARM_L1_CACHE_SHIFT
default 5
config ARM_DMA_MEM_BUFFERABLE
- bool "Use non-cacheable memory for DMA" if (CPU_V6 || CPU_V6K) && !CPU_V7
- default y if CPU_V6 || CPU_V6K || CPU_V7
+ bool "Use non-cacheable memory for DMA" if (CPU_V6 || CPU_V6K || CPU_V7M) && !CPU_V7
+ default y if CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M
help
Historically, the kernel has used strongly ordered mappings to
provide DMA coherent memory. With the advent of ARMv7, mapping
@@ -1061,6 +1065,10 @@ config ARM_DMA_MEM_BUFFERABLE
and therefore turning this on may result in unpredictable driver
behaviour. Therefore, we offer this as an option.
+ On some of the beefier ARMv7-M machines (with DMA and write
+ buffers) you likely want this enabled, while those that
+ didn't need it until now also won't need it in the future.
+
You are recommended say 'Y' here and debug any affected drivers.
config ARM_HEAVY_MB
diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile
index b3dea80715b4..950d19babb5f 100644
--- a/arch/arm/mm/Makefile
+++ b/arch/arm/mm/Makefile
@@ -2,9 +2,8 @@
# Makefile for the linux arm-specific parts of the memory manager.
#
-obj-y := dma-mapping.o extable.o fault.o init.o \
- iomap.o
-
+obj-y := extable.o fault.o init.o iomap.o
+obj-y += dma-mapping$(MMUEXT).o
obj-$(CONFIG_MMU) += fault-armv.o flush.o idmap.o ioremap.o \
mmap.o pgd.o mmu.o pageattr.o
diff --git a/arch/arm/mm/cache-v4wb.S b/arch/arm/mm/cache-v4wb.S
index 2522f8c8fbb1..a5084ec70c6e 100644
--- a/arch/arm/mm/cache-v4wb.S
+++ b/arch/arm/mm/cache-v4wb.S
@@ -47,6 +47,7 @@
#define CACHE_DLIMIT (CACHE_DSIZE * 4)
.data
+ .align 2
flush_base:
.long FLUSH_BASE
.text
diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
new file mode 100644
index 000000000000..6db5fc26d154
--- /dev/null
+++ b/arch/arm/mm/dma-mapping-nommu.c
@@ -0,0 +1,255 @@
+/*
+ * Based on linux/arch/arm/mm/dma-mapping.c
+ *
+ * Copyright (C) 2000-2004 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/export.h>
+#include <linux/mm.h>
+#include <linux/dma-mapping.h>
+#include <linux/scatterlist.h>
+
+#include <asm/cachetype.h>
+#include <asm/cacheflush.h>
+#include <asm/outercache.h>
+#include <asm/cp15.h>
+
+#include "dma.h"
+
+/*
+ * dma_noop_ops is used if
+ * - MMU/MPU is off
+ * - cpu is v7m w/o cache support
+ * - device is coherent
+ * otherwise arm_nommu_dma_ops is used.
+ *
+ * arm_nommu_dma_ops rely on consistent DMA memory (please, refer to
+ * [1] on how to declare such memory).
+ *
+ * [1] Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
+ */
+
+static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t gfp,
+ unsigned long attrs)
+
+{
+ const struct dma_map_ops *ops = &dma_noop_ops;
+ void *ret;
+
+ /*
+ * Try generic allocator first if we are advertised that
+ * consistency is not required.
+ */
+
+ if (attrs & DMA_ATTR_NON_CONSISTENT)
+ return ops->alloc(dev, size, dma_handle, gfp, attrs);
+
+ ret = dma_alloc_from_global_coherent(size, dma_handle);
+
+ /*
+ * dma_alloc_from_global_coherent() may fail because:
+ *
+ * - no consistent DMA region has been defined, so we can't
+ * continue.
+ * - there is no space left in consistent DMA region, so we
+ * only can fallback to generic allocator if we are
+ * advertised that consistency is not required.
+ */
+
+ WARN_ON_ONCE(ret == NULL);
+ return ret;
+}
+
+static void arm_nommu_dma_free(struct device *dev, size_t size,
+ void *cpu_addr, dma_addr_t dma_addr,
+ unsigned long attrs)
+{
+ const struct dma_map_ops *ops = &dma_noop_ops;
+
+ if (attrs & DMA_ATTR_NON_CONSISTENT) {
+ ops->free(dev, size, cpu_addr, dma_addr, attrs);
+ } else {
+ int ret = dma_release_from_global_coherent(get_order(size),
+ cpu_addr);
+
+ WARN_ON_ONCE(ret == 0);
+ }
+
+ return;
+}
+
+static int arm_nommu_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+ void *cpu_addr, dma_addr_t dma_addr, size_t size,
+ unsigned long attrs)
+{
+ int ret;
+
+ if (dma_mmap_from_global_coherent(vma, cpu_addr, size, &ret))
+ return ret;
+
+ return dma_common_mmap(dev, vma, cpu_addr, dma_addr, size);
+}
+
+
+static void __dma_page_cpu_to_dev(phys_addr_t paddr, size_t size,
+ enum dma_data_direction dir)
+{
+ dmac_map_area(__va(paddr), size, dir);
+
+ if (dir == DMA_FROM_DEVICE)
+ outer_inv_range(paddr, paddr + size);
+ else
+ outer_clean_range(paddr, paddr + size);
+}
+
+static void __dma_page_dev_to_cpu(phys_addr_t paddr, size_t size,
+ enum dma_data_direction dir)
+{
+ if (dir != DMA_TO_DEVICE) {
+ outer_inv_range(paddr, paddr + size);
+ dmac_unmap_area(__va(paddr), size, dir);
+ }
+}
+
+static dma_addr_t arm_nommu_dma_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ dma_addr_t handle = page_to_phys(page) + offset;
+
+ __dma_page_cpu_to_dev(handle, size, dir);
+
+ return handle;
+}
+
+static void arm_nommu_dma_unmap_page(struct device *dev, dma_addr_t handle,
+ size_t size, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ __dma_page_dev_to_cpu(handle, size, dir);
+}
+
+
+static int arm_nommu_dma_map_sg(struct device *dev, struct scatterlist *sgl,
+ int nents, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ int i;
+ struct scatterlist *sg;
+
+ for_each_sg(sgl, sg, nents, i) {
+ sg_dma_address(sg) = sg_phys(sg);
+ sg_dma_len(sg) = sg->length;
+ __dma_page_cpu_to_dev(sg_dma_address(sg), sg_dma_len(sg), dir);
+ }
+
+ return nents;
+}
+
+static void arm_nommu_dma_unmap_sg(struct device *dev, struct scatterlist *sgl,
+ int nents, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ struct scatterlist *sg;
+ int i;
+
+ for_each_sg(sgl, sg, nents, i)
+ __dma_page_dev_to_cpu(sg_dma_address(sg), sg_dma_len(sg), dir);
+}
+
+static void arm_nommu_dma_sync_single_for_device(struct device *dev,
+ dma_addr_t handle, size_t size, enum dma_data_direction dir)
+{
+ __dma_page_cpu_to_dev(handle, size, dir);
+}
+
+static void arm_nommu_dma_sync_single_for_cpu(struct device *dev,
+ dma_addr_t handle, size_t size, enum dma_data_direction dir)
+{
+ __dma_page_cpu_to_dev(handle, size, dir);
+}
+
+static void arm_nommu_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sgl,
+ int nents, enum dma_data_direction dir)
+{
+ struct scatterlist *sg;
+ int i;
+
+ for_each_sg(sgl, sg, nents, i)
+ __dma_page_cpu_to_dev(sg_dma_address(sg), sg_dma_len(sg), dir);
+}
+
+static void arm_nommu_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sgl,
+ int nents, enum dma_data_direction dir)
+{
+ struct scatterlist *sg;
+ int i;
+
+ for_each_sg(sgl, sg, nents, i)
+ __dma_page_dev_to_cpu(sg_dma_address(sg), sg_dma_len(sg), dir);
+}
+
+const struct dma_map_ops arm_nommu_dma_ops = {
+ .alloc = arm_nommu_dma_alloc,
+ .free = arm_nommu_dma_free,
+ .mmap = arm_nommu_dma_mmap,
+ .map_page = arm_nommu_dma_map_page,
+ .unmap_page = arm_nommu_dma_unmap_page,
+ .map_sg = arm_nommu_dma_map_sg,
+ .unmap_sg = arm_nommu_dma_unmap_sg,
+ .sync_single_for_device = arm_nommu_dma_sync_single_for_device,
+ .sync_single_for_cpu = arm_nommu_dma_sync_single_for_cpu,
+ .sync_sg_for_device = arm_nommu_dma_sync_sg_for_device,
+ .sync_sg_for_cpu = arm_nommu_dma_sync_sg_for_cpu,
+};
+EXPORT_SYMBOL(arm_nommu_dma_ops);
+
+static const struct dma_map_ops *arm_nommu_get_dma_map_ops(bool coherent)
+{
+ return coherent ? &dma_noop_ops : &arm_nommu_dma_ops;
+}
+
+void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
+ const struct iommu_ops *iommu, bool coherent)
+{
+ const struct dma_map_ops *dma_ops;
+
+ if (IS_ENABLED(CONFIG_CPU_V7M)) {
+ /*
+ * Cache support for v7m is optional, so can be treated as
+ * coherent if no cache has been detected. Note that it is not
+ * enough to check if MPU is in use or not since in absense of
+ * MPU system memory map is used.
+ */
+ dev->archdata.dma_coherent = (cacheid) ? coherent : true;
+ } else {
+ /*
+ * Assume coherent DMA in case MMU/MPU has not been set up.
+ */
+ dev->archdata.dma_coherent = (get_cr() & CR_M) ? coherent : true;
+ }
+
+ dma_ops = arm_nommu_get_dma_map_ops(dev->archdata.dma_coherent);
+
+ set_dma_ops(dev, dma_ops);
+}
+
+void arch_teardown_dma_ops(struct device *dev)
+{
+}
+
+#define PREALLOC_DMA_DEBUG_ENTRIES 4096
+
+static int __init dma_debug_do_init(void)
+{
+ dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
+ return 0;
+}
+core_initcall(dma_debug_do_init);
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index bd83c531828a..fcf1473d6fed 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -180,6 +180,11 @@ static void arm_dma_sync_single_for_device(struct device *dev,
__dma_page_cpu_to_dev(page, offset, size, dir);
}
+static int arm_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return dma_addr == ARM_MAPPING_ERROR;
+}
+
const struct dma_map_ops arm_dma_ops = {
.alloc = arm_dma_alloc,
.free = arm_dma_free,
@@ -193,6 +198,8 @@ const struct dma_map_ops arm_dma_ops = {
.sync_single_for_device = arm_dma_sync_single_for_device,
.sync_sg_for_cpu = arm_dma_sync_sg_for_cpu,
.sync_sg_for_device = arm_dma_sync_sg_for_device,
+ .mapping_error = arm_dma_mapping_error,
+ .dma_supported = arm_dma_supported,
};
EXPORT_SYMBOL(arm_dma_ops);
@@ -211,6 +218,8 @@ const struct dma_map_ops arm_coherent_dma_ops = {
.get_sgtable = arm_dma_get_sgtable,
.map_page = arm_coherent_dma_map_page,
.map_sg = arm_dma_map_sg,
+ .mapping_error = arm_dma_mapping_error,
+ .dma_supported = arm_dma_supported,
};
EXPORT_SYMBOL(arm_coherent_dma_ops);
@@ -344,8 +353,6 @@ static void __dma_free_buffer(struct page *page, size_t size)
}
}
-#ifdef CONFIG_MMU
-
static void *__alloc_from_contiguous(struct device *dev, size_t size,
pgprot_t prot, struct page **ret_page,
const void *caller, bool want_vaddr,
@@ -647,22 +654,6 @@ static inline pgprot_t __get_dma_pgprot(unsigned long attrs, pgprot_t prot)
return prot;
}
-#define nommu() 0
-
-#else /* !CONFIG_MMU */
-
-#define nommu() 1
-
-#define __get_dma_pgprot(attrs, prot) __pgprot(0)
-#define __alloc_remap_buffer(dev, size, gfp, prot, ret, c, wv) NULL
-#define __alloc_from_pool(size, ret_page) NULL
-#define __alloc_from_contiguous(dev, size, prot, ret, c, wv, coherent_flag, gfp) NULL
-#define __free_from_pool(cpu_addr, size) do { } while (0)
-#define __free_from_contiguous(dev, page, cpu_addr, size, wv) do { } while (0)
-#define __dma_free_remap(cpu_addr, size) do { } while (0)
-
-#endif /* CONFIG_MMU */
-
static void *__alloc_simple_buffer(struct device *dev, size_t size, gfp_t gfp,
struct page **ret_page)
{
@@ -799,13 +790,13 @@ static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
gfp &= ~(__GFP_COMP);
args.gfp = gfp;
- *handle = DMA_ERROR_CODE;
+ *handle = ARM_MAPPING_ERROR;
allowblock = gfpflags_allow_blocking(gfp);
cma = allowblock ? dev_get_cma_area(dev) : false;
if (cma)
buf->allocator = &cma_allocator;
- else if (nommu() || is_coherent)
+ else if (is_coherent)
buf->allocator = &simple_allocator;
else if (allowblock)
buf->allocator = &remap_allocator;
@@ -854,14 +845,13 @@ static int __arm_dma_mmap(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size,
unsigned long attrs)
{
- int ret = -ENXIO;
-#ifdef CONFIG_MMU
+ int ret;
unsigned long nr_vma_pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
unsigned long nr_pages = PAGE_ALIGN(size) >> PAGE_SHIFT;
unsigned long pfn = dma_to_pfn(dev, dma_addr);
unsigned long off = vma->vm_pgoff;
- if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
+ if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
return ret;
if (off < nr_pages && nr_vma_pages <= (nr_pages - off)) {
@@ -870,10 +860,6 @@ static int __arm_dma_mmap(struct device *dev, struct vm_area_struct *vma,
vma->vm_end - vma->vm_start,
vma->vm_page_prot);
}
-#else
- ret = vm_iomap_memory(vma, vma->vm_start,
- (vma->vm_end - vma->vm_start));
-#endif /* CONFIG_MMU */
return ret;
}
@@ -892,9 +878,7 @@ int arm_dma_mmap(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size,
unsigned long attrs)
{
-#ifdef CONFIG_MMU
vma->vm_page_prot = __get_dma_pgprot(attrs, vma->vm_page_prot);
-#endif /* CONFIG_MMU */
return __arm_dma_mmap(dev, vma, cpu_addr, dma_addr, size, attrs);
}
@@ -1177,11 +1161,10 @@ void arm_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
* during bus mastering, then you would pass 0x00ffffff as the mask
* to this function.
*/
-int dma_supported(struct device *dev, u64 mask)
+int arm_dma_supported(struct device *dev, u64 mask)
{
return __dma_supported(dev, mask, false);
}
-EXPORT_SYMBOL(dma_supported);
#define PREALLOC_DMA_DEBUG_ENTRIES 4096
@@ -1254,7 +1237,7 @@ static inline dma_addr_t __alloc_iova(struct dma_iommu_mapping *mapping,
if (i == mapping->nr_bitmaps) {
if (extend_iommu_mapping(mapping)) {
spin_unlock_irqrestore(&mapping->lock, flags);
- return DMA_ERROR_CODE;
+ return ARM_MAPPING_ERROR;
}
start = bitmap_find_next_zero_area(mapping->bitmaps[i],
@@ -1262,7 +1245,7 @@ static inline dma_addr_t __alloc_iova(struct dma_iommu_mapping *mapping,
if (start > mapping->bits) {
spin_unlock_irqrestore(&mapping->lock, flags);
- return DMA_ERROR_CODE;
+ return ARM_MAPPING_ERROR;
}
bitmap_set(mapping->bitmaps[i], start, count);
@@ -1445,7 +1428,7 @@ __iommu_create_mapping(struct device *dev, struct page **pages, size_t size,
int i;
dma_addr = __alloc_iova(mapping, size);
- if (dma_addr == DMA_ERROR_CODE)
+ if (dma_addr == ARM_MAPPING_ERROR)
return dma_addr;
iova = dma_addr;
@@ -1472,7 +1455,7 @@ __iommu_create_mapping(struct device *dev, struct page **pages, size_t size,
fail:
iommu_unmap(mapping->domain, dma_addr, iova-dma_addr);
__free_iova(mapping, dma_addr, size);
- return DMA_ERROR_CODE;
+ return ARM_MAPPING_ERROR;
}
static int __iommu_remove_mapping(struct device *dev, dma_addr_t iova, size_t size)
@@ -1533,7 +1516,7 @@ static void *__iommu_alloc_simple(struct device *dev, size_t size, gfp_t gfp,
return NULL;
*handle = __iommu_create_mapping(dev, &page, size, attrs);
- if (*handle == DMA_ERROR_CODE)
+ if (*handle == ARM_MAPPING_ERROR)
goto err_mapping;
return addr;
@@ -1561,7 +1544,7 @@ static void *__arm_iommu_alloc_attrs(struct device *dev, size_t size,
struct page **pages;
void *addr = NULL;
- *handle = DMA_ERROR_CODE;
+ *handle = ARM_MAPPING_ERROR;
size = PAGE_ALIGN(size);
if (coherent_flag == COHERENT || !gfpflags_allow_blocking(gfp))
@@ -1582,7 +1565,7 @@ static void *__arm_iommu_alloc_attrs(struct device *dev, size_t size,
return NULL;
*handle = __iommu_create_mapping(dev, pages, size, attrs);
- if (*handle == DMA_ERROR_CODE)
+ if (*handle == ARM_MAPPING_ERROR)
goto err_buffer;
if (attrs & DMA_ATTR_NO_KERNEL_MAPPING)
@@ -1732,10 +1715,10 @@ static int __map_sg_chunk(struct device *dev, struct scatterlist *sg,
int prot;
size = PAGE_ALIGN(size);
- *handle = DMA_ERROR_CODE;
+ *handle = ARM_MAPPING_ERROR;
iova_base = iova = __alloc_iova(mapping, size);
- if (iova == DMA_ERROR_CODE)
+ if (iova == ARM_MAPPING_ERROR)
return -ENOMEM;
for (count = 0, s = sg; count < (size >> PAGE_SHIFT); s = sg_next(s)) {
@@ -1775,7 +1758,7 @@ static int __iommu_map_sg(struct device *dev, struct scatterlist *sg, int nents,
for (i = 1; i < nents; i++) {
s = sg_next(s);
- s->dma_address = DMA_ERROR_CODE;
+ s->dma_address = ARM_MAPPING_ERROR;
s->dma_length = 0;
if (s->offset || (size & ~PAGE_MASK) || size + s->length > max) {
@@ -1950,7 +1933,7 @@ static dma_addr_t arm_coherent_iommu_map_page(struct device *dev, struct page *p
int ret, prot, len = PAGE_ALIGN(size + offset);
dma_addr = __alloc_iova(mapping, len);
- if (dma_addr == DMA_ERROR_CODE)
+ if (dma_addr == ARM_MAPPING_ERROR)
return dma_addr;
prot = __dma_info_to_prot(dir, attrs);
@@ -1962,7 +1945,7 @@ static dma_addr_t arm_coherent_iommu_map_page(struct device *dev, struct page *p
return dma_addr + offset;
fail:
__free_iova(mapping, dma_addr, len);
- return DMA_ERROR_CODE;
+ return ARM_MAPPING_ERROR;
}
/**
@@ -2056,7 +2039,7 @@ static dma_addr_t arm_iommu_map_resource(struct device *dev,
size_t len = PAGE_ALIGN(size + offset);
dma_addr = __alloc_iova(mapping, len);
- if (dma_addr == DMA_ERROR_CODE)
+ if (dma_addr == ARM_MAPPING_ERROR)
return dma_addr;
prot = __dma_info_to_prot(dir, attrs) | IOMMU_MMIO;
@@ -2068,7 +2051,7 @@ static dma_addr_t arm_iommu_map_resource(struct device *dev,
return dma_addr + offset;
fail:
__free_iova(mapping, dma_addr, len);
- return DMA_ERROR_CODE;
+ return ARM_MAPPING_ERROR;
}
/**
@@ -2140,6 +2123,9 @@ const struct dma_map_ops iommu_ops = {
.map_resource = arm_iommu_map_resource,
.unmap_resource = arm_iommu_unmap_resource,
+
+ .mapping_error = arm_dma_mapping_error,
+ .dma_supported = arm_dma_supported,
};
const struct dma_map_ops iommu_coherent_ops = {
@@ -2156,6 +2142,9 @@ const struct dma_map_ops iommu_coherent_ops = {
.map_resource = arm_iommu_map_resource,
.unmap_resource = arm_iommu_unmap_resource,
+
+ .mapping_error = arm_dma_mapping_error,
+ .dma_supported = arm_dma_supported,
};
/**
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index ff8b0aa2dfde..42f585379e19 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -315,8 +315,11 @@ retry:
* signal first. We do not need to release the mmap_sem because
* it would already be released in __lock_page_or_retry in
* mm/filemap.c. */
- if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+ if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current)) {
+ if (!user_mode(regs))
+ goto no_context;
return 0;
+ }
/*
* Major/minor page fault accounting is only done on the
diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c
index 3b8e728cc944..91537d90f5f5 100644
--- a/arch/arm/mm/nommu.c
+++ b/arch/arm/mm/nommu.c
@@ -344,6 +344,11 @@ void __init arm_mm_memblock_reserve(void)
* reserved here.
*/
#endif
+ /*
+ * In any case, always ensure address 0 is never used as many things
+ * get very confused if 0 is returned as a legitimate address.
+ */
+ memblock_reserve(0, 1);
}
void __init adjust_lowmem_bounds(void)
diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S
index 0d40c285bd86..f944836da8a2 100644
--- a/arch/arm/mm/proc-macros.S
+++ b/arch/arm/mm/proc-macros.S
@@ -25,11 +25,6 @@
ldr \rd, [\rn, #VMA_VM_FLAGS]
.endm
- .macro tsk_mm, rd, rn
- ldr \rd, [\rn, #TI_TASK]
- ldr \rd, [\rd, #TSK_ACTIVE_MM]
- .endm
-
/*
* act_mm - get current->active_mm
*/
@@ -37,7 +32,10 @@
bic \rd, sp, #8128
bic \rd, \rd, #63
ldr \rd, [\rd, #TI_TASK]
- ldr \rd, [\rd, #TSK_ACTIVE_MM]
+ .if (TSK_ACTIVE_MM > IMM12_MASK)
+ add \rd, \rd, #TSK_ACTIVE_MM & ~IMM12_MASK
+ .endif
+ ldr \rd, [\rd, #TSK_ACTIVE_MM & IMM12_MASK]
.endm
/*
diff --git a/arch/arm/mm/proc-v7-3level.S b/arch/arm/mm/proc-v7-3level.S
index 5e5720e8bc5f..7d16bbc4102b 100644
--- a/arch/arm/mm/proc-v7-3level.S
+++ b/arch/arm/mm/proc-v7-3level.S
@@ -129,8 +129,7 @@ ENDPROC(cpu_v7_set_pte_ext)
.macro v7_ttb_setup, zero, ttbr0l, ttbr0h, ttbr1, tmp
ldr \tmp, =swapper_pg_dir @ swapper_pg_dir virtual address
cmp \ttbr1, \tmp, lsr #12 @ PHYS_OFFSET > PAGE_OFFSET?
- mrc p15, 0, \tmp, c2, c0, 2 @ TTB control egister
- orr \tmp, \tmp, #TTB_EAE
+ mov \tmp, #TTB_EAE @ for TTB control egister
ALT_SMP(orr \tmp, \tmp, #TTB_FLAGS_SMP)
ALT_UP(orr \tmp, \tmp, #TTB_FLAGS_UP)
ALT_SMP(orr \tmp, \tmp, #TTB_FLAGS_SMP << 16)
diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S
index b6bbfdb6dfdc..3d75b7972fd1 100644
--- a/arch/arm/mm/proc-xscale.S
+++ b/arch/arm/mm/proc-xscale.S
@@ -104,6 +104,7 @@
.endm
.data
+ .align 2
clean_addr: .word CLEAN_ADDR
.text
diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
index d5b9fa19b684..c199990e12b6 100644
--- a/arch/arm/net/bpf_jit_32.c
+++ b/arch/arm/net/bpf_jit_32.c
@@ -1,6 +1,7 @@
/*
- * Just-In-Time compiler for BPF filters on 32bit ARM
+ * Just-In-Time compiler for eBPF filters on 32bit ARM
*
+ * Copyright (c) 2017 Shubham Bansal <illusionist.neo@gmail.com>
* Copyright (c) 2011 Mircea Gherzan <mgherzan@gmail.com>
*
* This program is free software; you can redistribute it and/or modify it
@@ -8,6 +9,7 @@
* Free Software Foundation; version 2 of the License.
*/
+#include <linux/bpf.h>
#include <linux/bitops.h>
#include <linux/compiler.h>
#include <linux/errno.h>
@@ -18,54 +20,101 @@
#include <linux/if_vlan.h>
#include <asm/cacheflush.h>
-#include <asm/set_memory.h>
#include <asm/hwcap.h>
#include <asm/opcodes.h>
#include "bpf_jit_32.h"
+int bpf_jit_enable __read_mostly;
+
+#define STACK_OFFSET(k) (k)
+#define TMP_REG_1 (MAX_BPF_JIT_REG + 0) /* TEMP Register 1 */
+#define TMP_REG_2 (MAX_BPF_JIT_REG + 1) /* TEMP Register 2 */
+#define TCALL_CNT (MAX_BPF_JIT_REG + 2) /* Tail Call Count */
+
+/* Flags used for JIT optimization */
+#define SEEN_CALL (1 << 0)
+
+#define FLAG_IMM_OVERFLOW (1 << 0)
+
/*
- * ABI:
+ * Map eBPF registers to ARM 32bit registers or stack scratch space.
+ *
+ * 1. First argument is passed using the arm 32bit registers and rest of the
+ * arguments are passed on stack scratch space.
+ * 2. First callee-saved arugument is mapped to arm 32 bit registers and rest
+ * arguments are mapped to scratch space on stack.
+ * 3. We need two 64 bit temp registers to do complex operations on eBPF
+ * registers.
+ *
+ * As the eBPF registers are all 64 bit registers and arm has only 32 bit
+ * registers, we have to map each eBPF registers with two arm 32 bit regs or
+ * scratch memory space and we have to build eBPF 64 bit register from those.
*
- * r0 scratch register
- * r4 BPF register A
- * r5 BPF register X
- * r6 pointer to the skb
- * r7 skb->data
- * r8 skb_headlen(skb)
*/
+static const u8 bpf2a32[][2] = {
+ /* return value from in-kernel function, and exit value from eBPF */
+ [BPF_REG_0] = {ARM_R1, ARM_R0},
+ /* arguments from eBPF program to in-kernel function */
+ [BPF_REG_1] = {ARM_R3, ARM_R2},
+ /* Stored on stack scratch space */
+ [BPF_REG_2] = {STACK_OFFSET(0), STACK_OFFSET(4)},
+ [BPF_REG_3] = {STACK_OFFSET(8), STACK_OFFSET(12)},
+ [BPF_REG_4] = {STACK_OFFSET(16), STACK_OFFSET(20)},
+ [BPF_REG_5] = {STACK_OFFSET(24), STACK_OFFSET(28)},
+ /* callee saved registers that in-kernel function will preserve */
+ [BPF_REG_6] = {ARM_R5, ARM_R4},
+ /* Stored on stack scratch space */
+ [BPF_REG_7] = {STACK_OFFSET(32), STACK_OFFSET(36)},
+ [BPF_REG_8] = {STACK_OFFSET(40), STACK_OFFSET(44)},
+ [BPF_REG_9] = {STACK_OFFSET(48), STACK_OFFSET(52)},
+ /* Read only Frame Pointer to access Stack */
+ [BPF_REG_FP] = {STACK_OFFSET(56), STACK_OFFSET(60)},
+ /* Temporary Register for internal BPF JIT, can be used
+ * for constant blindings and others.
+ */
+ [TMP_REG_1] = {ARM_R7, ARM_R6},
+ [TMP_REG_2] = {ARM_R10, ARM_R8},
+ /* Tail call count. Stored on stack scratch space. */
+ [TCALL_CNT] = {STACK_OFFSET(64), STACK_OFFSET(68)},
+ /* temporary register for blinding constants.
+ * Stored on stack scratch space.
+ */
+ [BPF_REG_AX] = {STACK_OFFSET(72), STACK_OFFSET(76)},
+};
-#define r_scratch ARM_R0
-/* r1-r3 are (also) used for the unaligned loads on the non-ARMv7 slowpath */
-#define r_off ARM_R1
-#define r_A ARM_R4
-#define r_X ARM_R5
-#define r_skb ARM_R6
-#define r_skb_data ARM_R7
-#define r_skb_hl ARM_R8
-
-#define SCRATCH_SP_OFFSET 0
-#define SCRATCH_OFF(k) (SCRATCH_SP_OFFSET + 4 * (k))
-
-#define SEEN_MEM ((1 << BPF_MEMWORDS) - 1)
-#define SEEN_MEM_WORD(k) (1 << (k))
-#define SEEN_X (1 << BPF_MEMWORDS)
-#define SEEN_CALL (1 << (BPF_MEMWORDS + 1))
-#define SEEN_SKB (1 << (BPF_MEMWORDS + 2))
-#define SEEN_DATA (1 << (BPF_MEMWORDS + 3))
+#define dst_lo dst[1]
+#define dst_hi dst[0]
+#define src_lo src[1]
+#define src_hi src[0]
-#define FLAG_NEED_X_RESET (1 << 0)
-#define FLAG_IMM_OVERFLOW (1 << 1)
+/*
+ * JIT Context:
+ *
+ * prog : bpf_prog
+ * idx : index of current last JITed instruction.
+ * prologue_bytes : bytes used in prologue.
+ * epilogue_offset : offset of epilogue starting.
+ * seen : bit mask used for JIT optimization.
+ * offsets : array of eBPF instruction offsets in
+ * JITed code.
+ * target : final JITed code.
+ * epilogue_bytes : no of bytes used in epilogue.
+ * imm_count : no of immediate counts used for global
+ * variables.
+ * imms : array of global variable addresses.
+ */
struct jit_ctx {
- const struct bpf_prog *skf;
- unsigned idx;
- unsigned prologue_bytes;
- int ret0_fp_idx;
+ const struct bpf_prog *prog;
+ unsigned int idx;
+ unsigned int prologue_bytes;
+ unsigned int epilogue_offset;
u32 seen;
u32 flags;
u32 *offsets;
u32 *target;
+ u32 stack_size;
#if __LINUX_ARM_ARCH__ < 7
u16 epilogue_bytes;
u16 imm_count;
@@ -73,68 +122,16 @@ struct jit_ctx {
#endif
};
-int bpf_jit_enable __read_mostly;
-
-static inline int call_neg_helper(struct sk_buff *skb, int offset, void *ret,
- unsigned int size)
-{
- void *ptr = bpf_internal_load_pointer_neg_helper(skb, offset, size);
-
- if (!ptr)
- return -EFAULT;
- memcpy(ret, ptr, size);
- return 0;
-}
-
-static u64 jit_get_skb_b(struct sk_buff *skb, int offset)
-{
- u8 ret;
- int err;
-
- if (offset < 0)
- err = call_neg_helper(skb, offset, &ret, 1);
- else
- err = skb_copy_bits(skb, offset, &ret, 1);
-
- return (u64)err << 32 | ret;
-}
-
-static u64 jit_get_skb_h(struct sk_buff *skb, int offset)
-{
- u16 ret;
- int err;
-
- if (offset < 0)
- err = call_neg_helper(skb, offset, &ret, 2);
- else
- err = skb_copy_bits(skb, offset, &ret, 2);
-
- return (u64)err << 32 | ntohs(ret);
-}
-
-static u64 jit_get_skb_w(struct sk_buff *skb, int offset)
-{
- u32 ret;
- int err;
-
- if (offset < 0)
- err = call_neg_helper(skb, offset, &ret, 4);
- else
- err = skb_copy_bits(skb, offset, &ret, 4);
-
- return (u64)err << 32 | ntohl(ret);
-}
-
/*
* Wrappers which handle both OABI and EABI and assures Thumb2 interworking
* (where the assembly routines like __aeabi_uidiv could cause problems).
*/
-static u32 jit_udiv(u32 dividend, u32 divisor)
+static u32 jit_udiv32(u32 dividend, u32 divisor)
{
return dividend / divisor;
}
-static u32 jit_mod(u32 dividend, u32 divisor)
+static u32 jit_mod32(u32 dividend, u32 divisor)
{
return dividend % divisor;
}
@@ -158,36 +155,22 @@ static inline void emit(u32 inst, struct jit_ctx *ctx)
_emit(ARM_COND_AL, inst, ctx);
}
-static u16 saved_regs(struct jit_ctx *ctx)
+/*
+ * Checks if immediate value can be converted to imm12(12 bits) value.
+ */
+static int16_t imm8m(u32 x)
{
- u16 ret = 0;
-
- if ((ctx->skf->len > 1) ||
- (ctx->skf->insns[0].code == (BPF_RET | BPF_A)))
- ret |= 1 << r_A;
-
-#ifdef CONFIG_FRAME_POINTER
- ret |= (1 << ARM_FP) | (1 << ARM_IP) | (1 << ARM_LR) | (1 << ARM_PC);
-#else
- if (ctx->seen & SEEN_CALL)
- ret |= 1 << ARM_LR;
-#endif
- if (ctx->seen & (SEEN_DATA | SEEN_SKB))
- ret |= 1 << r_skb;
- if (ctx->seen & SEEN_DATA)
- ret |= (1 << r_skb_data) | (1 << r_skb_hl);
- if (ctx->seen & SEEN_X)
- ret |= 1 << r_X;
-
- return ret;
-}
+ u32 rot;
-static inline int mem_words_used(struct jit_ctx *ctx)
-{
- /* yes, we do waste some stack space IF there are "holes" in the set" */
- return fls(ctx->seen & SEEN_MEM);
+ for (rot = 0; rot < 16; rot++)
+ if ((x & ~ror32(0xff, 2 * rot)) == 0)
+ return rol32(x, 2 * rot) | (rot << 8);
+ return -1;
}
+/*
+ * Initializes the JIT space with undefined instructions.
+ */
static void jit_fill_hole(void *area, unsigned int size)
{
u32 *ptr;
@@ -196,88 +179,34 @@ static void jit_fill_hole(void *area, unsigned int size)
*ptr++ = __opcode_to_mem_arm(ARM_INST_UDF);
}
-static void build_prologue(struct jit_ctx *ctx)
-{
- u16 reg_set = saved_regs(ctx);
- u16 off;
-
-#ifdef CONFIG_FRAME_POINTER
- emit(ARM_MOV_R(ARM_IP, ARM_SP), ctx);
- emit(ARM_PUSH(reg_set), ctx);
- emit(ARM_SUB_I(ARM_FP, ARM_IP, 4), ctx);
-#else
- if (reg_set)
- emit(ARM_PUSH(reg_set), ctx);
-#endif
-
- if (ctx->seen & (SEEN_DATA | SEEN_SKB))
- emit(ARM_MOV_R(r_skb, ARM_R0), ctx);
-
- if (ctx->seen & SEEN_DATA) {
- off = offsetof(struct sk_buff, data);
- emit(ARM_LDR_I(r_skb_data, r_skb, off), ctx);
- /* headlen = len - data_len */
- off = offsetof(struct sk_buff, len);
- emit(ARM_LDR_I(r_skb_hl, r_skb, off), ctx);
- off = offsetof(struct sk_buff, data_len);
- emit(ARM_LDR_I(r_scratch, r_skb, off), ctx);
- emit(ARM_SUB_R(r_skb_hl, r_skb_hl, r_scratch), ctx);
- }
-
- if (ctx->flags & FLAG_NEED_X_RESET)
- emit(ARM_MOV_I(r_X, 0), ctx);
-
- /* do not leak kernel data to userspace */
- if (bpf_needs_clear_a(&ctx->skf->insns[0]))
- emit(ARM_MOV_I(r_A, 0), ctx);
-
- /* stack space for the BPF_MEM words */
- if (ctx->seen & SEEN_MEM)
- emit(ARM_SUB_I(ARM_SP, ARM_SP, mem_words_used(ctx) * 4), ctx);
-}
-
-static void build_epilogue(struct jit_ctx *ctx)
-{
- u16 reg_set = saved_regs(ctx);
-
- if (ctx->seen & SEEN_MEM)
- emit(ARM_ADD_I(ARM_SP, ARM_SP, mem_words_used(ctx) * 4), ctx);
-
- reg_set &= ~(1 << ARM_LR);
+/* Stack must be multiples of 16 Bytes */
+#define STACK_ALIGN(sz) (((sz) + 3) & ~3)
-#ifdef CONFIG_FRAME_POINTER
- /* the first instruction of the prologue was: mov ip, sp */
- reg_set &= ~(1 << ARM_IP);
- reg_set |= (1 << ARM_SP);
- emit(ARM_LDM(ARM_SP, reg_set), ctx);
-#else
- if (reg_set) {
- if (ctx->seen & SEEN_CALL)
- reg_set |= 1 << ARM_PC;
- emit(ARM_POP(reg_set), ctx);
- }
+/* Stack space for BPF_REG_2, BPF_REG_3, BPF_REG_4,
+ * BPF_REG_5, BPF_REG_7, BPF_REG_8, BPF_REG_9,
+ * BPF_REG_FP and Tail call counts.
+ */
+#define SCRATCH_SIZE 80
- if (!(ctx->seen & SEEN_CALL))
- emit(ARM_BX(ARM_LR), ctx);
-#endif
-}
+/* total stack size used in JITed code */
+#define _STACK_SIZE \
+ (ctx->prog->aux->stack_depth + \
+ + SCRATCH_SIZE + \
+ + 4 /* extra for skb_copy_bits buffer */)
-static int16_t imm8m(u32 x)
-{
- u32 rot;
+#define STACK_SIZE STACK_ALIGN(_STACK_SIZE)
- for (rot = 0; rot < 16; rot++)
- if ((x & ~ror32(0xff, 2 * rot)) == 0)
- return rol32(x, 2 * rot) | (rot << 8);
+/* Get the offset of eBPF REGISTERs stored on scratch space. */
+#define STACK_VAR(off) (STACK_SIZE-off-4)
- return -1;
-}
+/* Offset of skb_copy_bits buffer */
+#define SKB_BUFFER STACK_VAR(SCRATCH_SIZE)
#if __LINUX_ARM_ARCH__ < 7
static u16 imm_offset(u32 k, struct jit_ctx *ctx)
{
- unsigned i = 0, offset;
+ unsigned int i = 0, offset;
u16 imm;
/* on the "fake" run we just count them (duplicates included) */
@@ -296,7 +225,7 @@ static u16 imm_offset(u32 k, struct jit_ctx *ctx)
ctx->imms[i] = k;
/* constants go just after the epilogue */
- offset = ctx->offsets[ctx->skf->len];
+ offset = ctx->offsets[ctx->prog->len - 1] * 4;
offset += ctx->prologue_bytes;
offset += ctx->epilogue_bytes;
offset += i * 4;
@@ -320,10 +249,22 @@ static u16 imm_offset(u32 k, struct jit_ctx *ctx)
#endif /* __LINUX_ARM_ARCH__ */
+static inline int bpf2a32_offset(int bpf_to, int bpf_from,
+ const struct jit_ctx *ctx) {
+ int to, from;
+
+ if (ctx->target == NULL)
+ return 0;
+ to = ctx->offsets[bpf_to];
+ from = ctx->offsets[bpf_from];
+
+ return to - from - 1;
+}
+
/*
* Move an immediate that's not an imm8m to a core register.
*/
-static inline void emit_mov_i_no8m(int rd, u32 val, struct jit_ctx *ctx)
+static inline void emit_mov_i_no8m(const u8 rd, u32 val, struct jit_ctx *ctx)
{
#if __LINUX_ARM_ARCH__ < 7
emit(ARM_LDR_I(rd, ARM_PC, imm_offset(val, ctx)), ctx);
@@ -334,7 +275,7 @@ static inline void emit_mov_i_no8m(int rd, u32 val, struct jit_ctx *ctx)
#endif
}
-static inline void emit_mov_i(int rd, u32 val, struct jit_ctx *ctx)
+static inline void emit_mov_i(const u8 rd, u32 val, struct jit_ctx *ctx)
{
int imm12 = imm8m(val);
@@ -344,676 +285,1594 @@ static inline void emit_mov_i(int rd, u32 val, struct jit_ctx *ctx)
emit_mov_i_no8m(rd, val, ctx);
}
-#if __LINUX_ARM_ARCH__ < 6
-
-static void emit_load_be32(u8 cond, u8 r_res, u8 r_addr, struct jit_ctx *ctx)
+static inline void emit_blx_r(u8 tgt_reg, struct jit_ctx *ctx)
{
- _emit(cond, ARM_LDRB_I(ARM_R3, r_addr, 1), ctx);
- _emit(cond, ARM_LDRB_I(ARM_R1, r_addr, 0), ctx);
- _emit(cond, ARM_LDRB_I(ARM_R2, r_addr, 3), ctx);
- _emit(cond, ARM_LSL_I(ARM_R3, ARM_R3, 16), ctx);
- _emit(cond, ARM_LDRB_I(ARM_R0, r_addr, 2), ctx);
- _emit(cond, ARM_ORR_S(ARM_R3, ARM_R3, ARM_R1, SRTYPE_LSL, 24), ctx);
- _emit(cond, ARM_ORR_R(ARM_R3, ARM_R3, ARM_R2), ctx);
- _emit(cond, ARM_ORR_S(r_res, ARM_R3, ARM_R0, SRTYPE_LSL, 8), ctx);
+ ctx->seen |= SEEN_CALL;
+#if __LINUX_ARM_ARCH__ < 5
+ emit(ARM_MOV_R(ARM_LR, ARM_PC), ctx);
+
+ if (elf_hwcap & HWCAP_THUMB)
+ emit(ARM_BX(tgt_reg), ctx);
+ else
+ emit(ARM_MOV_R(ARM_PC, tgt_reg), ctx);
+#else
+ emit(ARM_BLX_R(tgt_reg), ctx);
+#endif
}
-static void emit_load_be16(u8 cond, u8 r_res, u8 r_addr, struct jit_ctx *ctx)
+static inline int epilogue_offset(const struct jit_ctx *ctx)
{
- _emit(cond, ARM_LDRB_I(ARM_R1, r_addr, 0), ctx);
- _emit(cond, ARM_LDRB_I(ARM_R2, r_addr, 1), ctx);
- _emit(cond, ARM_ORR_S(r_res, ARM_R2, ARM_R1, SRTYPE_LSL, 8), ctx);
+ int to, from;
+ /* No need for 1st dummy run */
+ if (ctx->target == NULL)
+ return 0;
+ to = ctx->epilogue_offset;
+ from = ctx->idx;
+
+ return to - from - 2;
}
-static inline void emit_swap16(u8 r_dst, u8 r_src, struct jit_ctx *ctx)
+static inline void emit_udivmod(u8 rd, u8 rm, u8 rn, struct jit_ctx *ctx, u8 op)
{
- /* r_dst = (r_src << 8) | (r_src >> 8) */
- emit(ARM_LSL_I(ARM_R1, r_src, 8), ctx);
- emit(ARM_ORR_S(r_dst, ARM_R1, r_src, SRTYPE_LSR, 8), ctx);
+ const u8 *tmp = bpf2a32[TMP_REG_1];
+ s32 jmp_offset;
+
+ /* checks if divisor is zero or not. If it is, then
+ * exit directly.
+ */
+ emit(ARM_CMP_I(rn, 0), ctx);
+ _emit(ARM_COND_EQ, ARM_MOV_I(ARM_R0, 0), ctx);
+ jmp_offset = epilogue_offset(ctx);
+ _emit(ARM_COND_EQ, ARM_B(jmp_offset), ctx);
+#if __LINUX_ARM_ARCH__ == 7
+ if (elf_hwcap & HWCAP_IDIVA) {
+ if (op == BPF_DIV)
+ emit(ARM_UDIV(rd, rm, rn), ctx);
+ else {
+ emit(ARM_UDIV(ARM_IP, rm, rn), ctx);
+ emit(ARM_MLS(rd, rn, ARM_IP, rm), ctx);
+ }
+ return;
+ }
+#endif
/*
- * we need to mask out the bits set in r_dst[23:16] due to
- * the first shift instruction.
- *
- * note that 0x8ff is the encoded immediate 0x00ff0000.
+ * For BPF_ALU | BPF_DIV | BPF_K instructions
+ * As ARM_R1 and ARM_R0 contains 1st argument of bpf
+ * function, we need to save it on caller side to save
+ * it from getting destroyed within callee.
+ * After the return from the callee, we restore ARM_R0
+ * ARM_R1.
*/
- emit(ARM_BIC_I(r_dst, r_dst, 0x8ff), ctx);
-}
+ if (rn != ARM_R1) {
+ emit(ARM_MOV_R(tmp[0], ARM_R1), ctx);
+ emit(ARM_MOV_R(ARM_R1, rn), ctx);
+ }
+ if (rm != ARM_R0) {
+ emit(ARM_MOV_R(tmp[1], ARM_R0), ctx);
+ emit(ARM_MOV_R(ARM_R0, rm), ctx);
+ }
-#else /* ARMv6+ */
+ /* Call appropriate function */
+ ctx->seen |= SEEN_CALL;
+ emit_mov_i(ARM_IP, op == BPF_DIV ?
+ (u32)jit_udiv32 : (u32)jit_mod32, ctx);
+ emit_blx_r(ARM_IP, ctx);
-static void emit_load_be32(u8 cond, u8 r_res, u8 r_addr, struct jit_ctx *ctx)
-{
- _emit(cond, ARM_LDR_I(r_res, r_addr, 0), ctx);
-#ifdef __LITTLE_ENDIAN
- _emit(cond, ARM_REV(r_res, r_res), ctx);
-#endif
+ /* Save return value */
+ if (rd != ARM_R0)
+ emit(ARM_MOV_R(rd, ARM_R0), ctx);
+
+ /* Restore ARM_R0 and ARM_R1 */
+ if (rn != ARM_R1)
+ emit(ARM_MOV_R(ARM_R1, tmp[0]), ctx);
+ if (rm != ARM_R0)
+ emit(ARM_MOV_R(ARM_R0, tmp[1]), ctx);
}
-static void emit_load_be16(u8 cond, u8 r_res, u8 r_addr, struct jit_ctx *ctx)
+/* Checks whether BPF register is on scratch stack space or not. */
+static inline bool is_on_stack(u8 bpf_reg)
{
- _emit(cond, ARM_LDRH_I(r_res, r_addr, 0), ctx);
-#ifdef __LITTLE_ENDIAN
- _emit(cond, ARM_REV16(r_res, r_res), ctx);
-#endif
+ static u8 stack_regs[] = {BPF_REG_AX, BPF_REG_3, BPF_REG_4, BPF_REG_5,
+ BPF_REG_7, BPF_REG_8, BPF_REG_9, TCALL_CNT,
+ BPF_REG_2, BPF_REG_FP};
+ int i, reg_len = sizeof(stack_regs);
+
+ for (i = 0 ; i < reg_len ; i++) {
+ if (bpf_reg == stack_regs[i])
+ return true;
+ }
+ return false;
}
-static inline void emit_swap16(u8 r_dst __maybe_unused,
- u8 r_src __maybe_unused,
- struct jit_ctx *ctx __maybe_unused)
+static inline void emit_a32_mov_i(const u8 dst, const u32 val,
+ bool dstk, struct jit_ctx *ctx)
{
-#ifdef __LITTLE_ENDIAN
- emit(ARM_REV16(r_dst, r_src), ctx);
-#endif
+ const u8 *tmp = bpf2a32[TMP_REG_1];
+
+ if (dstk) {
+ emit_mov_i(tmp[1], val, ctx);
+ emit(ARM_STR_I(tmp[1], ARM_SP, STACK_VAR(dst)), ctx);
+ } else {
+ emit_mov_i(dst, val, ctx);
+ }
}
-#endif /* __LINUX_ARM_ARCH__ < 6 */
+/* Sign extended move */
+static inline void emit_a32_mov_i64(const bool is64, const u8 dst[],
+ const u32 val, bool dstk,
+ struct jit_ctx *ctx) {
+ u32 hi = 0;
+ if (is64 && (val & (1<<31)))
+ hi = (u32)~0;
+ emit_a32_mov_i(dst_lo, val, dstk, ctx);
+ emit_a32_mov_i(dst_hi, hi, dstk, ctx);
+}
-/* Compute the immediate value for a PC-relative branch. */
-static inline u32 b_imm(unsigned tgt, struct jit_ctx *ctx)
-{
- u32 imm;
+static inline void emit_a32_add_r(const u8 dst, const u8 src,
+ const bool is64, const bool hi,
+ struct jit_ctx *ctx) {
+ /* 64 bit :
+ * adds dst_lo, dst_lo, src_lo
+ * adc dst_hi, dst_hi, src_hi
+ * 32 bit :
+ * add dst_lo, dst_lo, src_lo
+ */
+ if (!hi && is64)
+ emit(ARM_ADDS_R(dst, dst, src), ctx);
+ else if (hi && is64)
+ emit(ARM_ADC_R(dst, dst, src), ctx);
+ else
+ emit(ARM_ADD_R(dst, dst, src), ctx);
+}
- if (ctx->target == NULL)
- return 0;
- /*
- * BPF allows only forward jumps and the offset of the target is
- * still the one computed during the first pass.
+static inline void emit_a32_sub_r(const u8 dst, const u8 src,
+ const bool is64, const bool hi,
+ struct jit_ctx *ctx) {
+ /* 64 bit :
+ * subs dst_lo, dst_lo, src_lo
+ * sbc dst_hi, dst_hi, src_hi
+ * 32 bit :
+ * sub dst_lo, dst_lo, src_lo
*/
- imm = ctx->offsets[tgt] + ctx->prologue_bytes - (ctx->idx * 4 + 8);
+ if (!hi && is64)
+ emit(ARM_SUBS_R(dst, dst, src), ctx);
+ else if (hi && is64)
+ emit(ARM_SBC_R(dst, dst, src), ctx);
+ else
+ emit(ARM_SUB_R(dst, dst, src), ctx);
+}
- return imm >> 2;
+static inline void emit_alu_r(const u8 dst, const u8 src, const bool is64,
+ const bool hi, const u8 op, struct jit_ctx *ctx){
+ switch (BPF_OP(op)) {
+ /* dst = dst + src */
+ case BPF_ADD:
+ emit_a32_add_r(dst, src, is64, hi, ctx);
+ break;
+ /* dst = dst - src */
+ case BPF_SUB:
+ emit_a32_sub_r(dst, src, is64, hi, ctx);
+ break;
+ /* dst = dst | src */
+ case BPF_OR:
+ emit(ARM_ORR_R(dst, dst, src), ctx);
+ break;
+ /* dst = dst & src */
+ case BPF_AND:
+ emit(ARM_AND_R(dst, dst, src), ctx);
+ break;
+ /* dst = dst ^ src */
+ case BPF_XOR:
+ emit(ARM_EOR_R(dst, dst, src), ctx);
+ break;
+ /* dst = dst * src */
+ case BPF_MUL:
+ emit(ARM_MUL(dst, dst, src), ctx);
+ break;
+ /* dst = dst << src */
+ case BPF_LSH:
+ emit(ARM_LSL_R(dst, dst, src), ctx);
+ break;
+ /* dst = dst >> src */
+ case BPF_RSH:
+ emit(ARM_LSR_R(dst, dst, src), ctx);
+ break;
+ /* dst = dst >> src (signed)*/
+ case BPF_ARSH:
+ emit(ARM_MOV_SR(dst, dst, SRTYPE_ASR, src), ctx);
+ break;
+ }
}
-#define OP_IMM3(op, r1, r2, imm_val, ctx) \
- do { \
- imm12 = imm8m(imm_val); \
- if (imm12 < 0) { \
- emit_mov_i_no8m(r_scratch, imm_val, ctx); \
- emit(op ## _R((r1), (r2), r_scratch), ctx); \
- } else { \
- emit(op ## _I((r1), (r2), imm12), ctx); \
- } \
- } while (0)
-
-static inline void emit_err_ret(u8 cond, struct jit_ctx *ctx)
-{
- if (ctx->ret0_fp_idx >= 0) {
- _emit(cond, ARM_B(b_imm(ctx->ret0_fp_idx, ctx)), ctx);
- /* NOP to keep the size constant between passes */
- emit(ARM_MOV_R(ARM_R0, ARM_R0), ctx);
+/* ALU operation (32 bit)
+ * dst = dst (op) src
+ */
+static inline void emit_a32_alu_r(const u8 dst, const u8 src,
+ bool dstk, bool sstk,
+ struct jit_ctx *ctx, const bool is64,
+ const bool hi, const u8 op) {
+ const u8 *tmp = bpf2a32[TMP_REG_1];
+ u8 rn = sstk ? tmp[1] : src;
+
+ if (sstk)
+ emit(ARM_LDR_I(rn, ARM_SP, STACK_VAR(src)), ctx);
+
+ /* ALU operation */
+ if (dstk) {
+ emit(ARM_LDR_I(tmp[0], ARM_SP, STACK_VAR(dst)), ctx);
+ emit_alu_r(tmp[0], rn, is64, hi, op, ctx);
+ emit(ARM_STR_I(tmp[0], ARM_SP, STACK_VAR(dst)), ctx);
} else {
- _emit(cond, ARM_MOV_I(ARM_R0, 0), ctx);
- _emit(cond, ARM_B(b_imm(ctx->skf->len, ctx)), ctx);
+ emit_alu_r(dst, rn, is64, hi, op, ctx);
}
}
-static inline void emit_blx_r(u8 tgt_reg, struct jit_ctx *ctx)
-{
-#if __LINUX_ARM_ARCH__ < 5
- emit(ARM_MOV_R(ARM_LR, ARM_PC), ctx);
+/* ALU operation (64 bit) */
+static inline void emit_a32_alu_r64(const bool is64, const u8 dst[],
+ const u8 src[], bool dstk,
+ bool sstk, struct jit_ctx *ctx,
+ const u8 op) {
+ emit_a32_alu_r(dst_lo, src_lo, dstk, sstk, ctx, is64, false, op);
+ if (is64)
+ emit_a32_alu_r(dst_hi, src_hi, dstk, sstk, ctx, is64, true, op);
+ else
+ emit_a32_mov_i(dst_hi, 0, dstk, ctx);
+}
- if (elf_hwcap & HWCAP_THUMB)
- emit(ARM_BX(tgt_reg), ctx);
+/* dst = imm (4 bytes)*/
+static inline void emit_a32_mov_r(const u8 dst, const u8 src,
+ bool dstk, bool sstk,
+ struct jit_ctx *ctx) {
+ const u8 *tmp = bpf2a32[TMP_REG_1];
+ u8 rt = sstk ? tmp[0] : src;
+
+ if (sstk)
+ emit(ARM_LDR_I(tmp[0], ARM_SP, STACK_VAR(src)), ctx);
+ if (dstk)
+ emit(ARM_STR_I(rt, ARM_SP, STACK_VAR(dst)), ctx);
else
- emit(ARM_MOV_R(ARM_PC, tgt_reg), ctx);
-#else
- emit(ARM_BLX_R(tgt_reg), ctx);
-#endif
+ emit(ARM_MOV_R(dst, rt), ctx);
}
-static inline void emit_udivmod(u8 rd, u8 rm, u8 rn, struct jit_ctx *ctx,
- int bpf_op)
-{
-#if __LINUX_ARM_ARCH__ == 7
- if (elf_hwcap & HWCAP_IDIVA) {
- if (bpf_op == BPF_DIV)
- emit(ARM_UDIV(rd, rm, rn), ctx);
- else {
- emit(ARM_UDIV(ARM_R3, rm, rn), ctx);
- emit(ARM_MLS(rd, rn, ARM_R3, rm), ctx);
- }
- return;
+/* dst = src */
+static inline void emit_a32_mov_r64(const bool is64, const u8 dst[],
+ const u8 src[], bool dstk,
+ bool sstk, struct jit_ctx *ctx) {
+ emit_a32_mov_r(dst_lo, src_lo, dstk, sstk, ctx);
+ if (is64) {
+ /* complete 8 byte move */
+ emit_a32_mov_r(dst_hi, src_hi, dstk, sstk, ctx);
+ } else {
+ /* Zero out high 4 bytes */
+ emit_a32_mov_i(dst_hi, 0, dstk, ctx);
}
-#endif
+}
- /*
- * For BPF_ALU | BPF_DIV | BPF_K instructions, rm is ARM_R4
- * (r_A) and rn is ARM_R0 (r_scratch) so load rn first into
- * ARM_R1 to avoid accidentally overwriting ARM_R0 with rm
- * before using it as a source for ARM_R1.
- *
- * For BPF_ALU | BPF_DIV | BPF_X rm is ARM_R4 (r_A) and rn is
- * ARM_R5 (r_X) so there is no particular register overlap
- * issues.
- */
- if (rn != ARM_R1)
- emit(ARM_MOV_R(ARM_R1, rn), ctx);
- if (rm != ARM_R0)
- emit(ARM_MOV_R(ARM_R0, rm), ctx);
+/* Shift operations */
+static inline void emit_a32_alu_i(const u8 dst, const u32 val, bool dstk,
+ struct jit_ctx *ctx, const u8 op) {
+ const u8 *tmp = bpf2a32[TMP_REG_1];
+ u8 rd = dstk ? tmp[0] : dst;
+
+ if (dstk)
+ emit(ARM_LDR_I(rd, ARM_SP, STACK_VAR(dst)), ctx);
+
+ /* Do shift operation */
+ switch (op) {
+ case BPF_LSH:
+ emit(ARM_LSL_I(rd, rd, val), ctx);
+ break;
+ case BPF_RSH:
+ emit(ARM_LSR_I(rd, rd, val), ctx);
+ break;
+ case BPF_NEG:
+ emit(ARM_RSB_I(rd, rd, val), ctx);
+ break;
+ }
+ if (dstk)
+ emit(ARM_STR_I(rd, ARM_SP, STACK_VAR(dst)), ctx);
+}
+
+/* dst = ~dst (64 bit) */
+static inline void emit_a32_neg64(const u8 dst[], bool dstk,
+ struct jit_ctx *ctx){
+ const u8 *tmp = bpf2a32[TMP_REG_1];
+ u8 rd = dstk ? tmp[1] : dst[1];
+ u8 rm = dstk ? tmp[0] : dst[0];
+
+ /* Setup Operand */
+ if (dstk) {
+ emit(ARM_LDR_I(rd, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_LDR_I(rm, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ }
+
+ /* Do Negate Operation */
+ emit(ARM_RSBS_I(rd, rd, 0), ctx);
+ emit(ARM_RSC_I(rm, rm, 0), ctx);
+
+ if (dstk) {
+ emit(ARM_STR_I(rd, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_STR_I(rm, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ }
+}
+
+/* dst = dst << src */
+static inline void emit_a32_lsh_r64(const u8 dst[], const u8 src[], bool dstk,
+ bool sstk, struct jit_ctx *ctx) {
+ const u8 *tmp = bpf2a32[TMP_REG_1];
+ const u8 *tmp2 = bpf2a32[TMP_REG_2];
+
+ /* Setup Operands */
+ u8 rt = sstk ? tmp2[1] : src_lo;
+ u8 rd = dstk ? tmp[1] : dst_lo;
+ u8 rm = dstk ? tmp[0] : dst_hi;
+
+ if (sstk)
+ emit(ARM_LDR_I(rt, ARM_SP, STACK_VAR(src_lo)), ctx);
+ if (dstk) {
+ emit(ARM_LDR_I(rd, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_LDR_I(rm, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ }
+
+ /* Do LSH operation */
+ emit(ARM_SUB_I(ARM_IP, rt, 32), ctx);
+ emit(ARM_RSB_I(tmp2[0], rt, 32), ctx);
+ /* As we are using ARM_LR */
ctx->seen |= SEEN_CALL;
- emit_mov_i(ARM_R3, bpf_op == BPF_DIV ? (u32)jit_udiv : (u32)jit_mod,
- ctx);
- emit_blx_r(ARM_R3, ctx);
+ emit(ARM_MOV_SR(ARM_LR, rm, SRTYPE_ASL, rt), ctx);
+ emit(ARM_ORR_SR(ARM_LR, ARM_LR, rd, SRTYPE_ASL, ARM_IP), ctx);
+ emit(ARM_ORR_SR(ARM_IP, ARM_LR, rd, SRTYPE_LSR, tmp2[0]), ctx);
+ emit(ARM_MOV_SR(ARM_LR, rd, SRTYPE_ASL, rt), ctx);
+
+ if (dstk) {
+ emit(ARM_STR_I(ARM_LR, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_STR_I(ARM_IP, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ } else {
+ emit(ARM_MOV_R(rd, ARM_LR), ctx);
+ emit(ARM_MOV_R(rm, ARM_IP), ctx);
+ }
+}
- if (rd != ARM_R0)
- emit(ARM_MOV_R(rd, ARM_R0), ctx);
+/* dst = dst >> src (signed)*/
+static inline void emit_a32_arsh_r64(const u8 dst[], const u8 src[], bool dstk,
+ bool sstk, struct jit_ctx *ctx) {
+ const u8 *tmp = bpf2a32[TMP_REG_1];
+ const u8 *tmp2 = bpf2a32[TMP_REG_2];
+ /* Setup Operands */
+ u8 rt = sstk ? tmp2[1] : src_lo;
+ u8 rd = dstk ? tmp[1] : dst_lo;
+ u8 rm = dstk ? tmp[0] : dst_hi;
+
+ if (sstk)
+ emit(ARM_LDR_I(rt, ARM_SP, STACK_VAR(src_lo)), ctx);
+ if (dstk) {
+ emit(ARM_LDR_I(rd, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_LDR_I(rm, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ }
+
+ /* Do the ARSH operation */
+ emit(ARM_RSB_I(ARM_IP, rt, 32), ctx);
+ emit(ARM_SUBS_I(tmp2[0], rt, 32), ctx);
+ /* As we are using ARM_LR */
+ ctx->seen |= SEEN_CALL;
+ emit(ARM_MOV_SR(ARM_LR, rd, SRTYPE_LSR, rt), ctx);
+ emit(ARM_ORR_SR(ARM_LR, ARM_LR, rm, SRTYPE_ASL, ARM_IP), ctx);
+ _emit(ARM_COND_MI, ARM_B(0), ctx);
+ emit(ARM_ORR_SR(ARM_LR, ARM_LR, rm, SRTYPE_ASR, tmp2[0]), ctx);
+ emit(ARM_MOV_SR(ARM_IP, rm, SRTYPE_ASR, rt), ctx);
+ if (dstk) {
+ emit(ARM_STR_I(ARM_LR, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_STR_I(ARM_IP, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ } else {
+ emit(ARM_MOV_R(rd, ARM_LR), ctx);
+ emit(ARM_MOV_R(rm, ARM_IP), ctx);
+ }
+}
+
+/* dst = dst >> src */
+static inline void emit_a32_lsr_r64(const u8 dst[], const u8 src[], bool dstk,
+ bool sstk, struct jit_ctx *ctx) {
+ const u8 *tmp = bpf2a32[TMP_REG_1];
+ const u8 *tmp2 = bpf2a32[TMP_REG_2];
+ /* Setup Operands */
+ u8 rt = sstk ? tmp2[1] : src_lo;
+ u8 rd = dstk ? tmp[1] : dst_lo;
+ u8 rm = dstk ? tmp[0] : dst_hi;
+
+ if (sstk)
+ emit(ARM_LDR_I(rt, ARM_SP, STACK_VAR(src_lo)), ctx);
+ if (dstk) {
+ emit(ARM_LDR_I(rd, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_LDR_I(rm, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ }
+
+ /* Do LSH operation */
+ emit(ARM_RSB_I(ARM_IP, rt, 32), ctx);
+ emit(ARM_SUBS_I(tmp2[0], rt, 32), ctx);
+ /* As we are using ARM_LR */
+ ctx->seen |= SEEN_CALL;
+ emit(ARM_MOV_SR(ARM_LR, rd, SRTYPE_LSR, rt), ctx);
+ emit(ARM_ORR_SR(ARM_LR, ARM_LR, rm, SRTYPE_ASL, ARM_IP), ctx);
+ emit(ARM_ORR_SR(ARM_LR, ARM_LR, rm, SRTYPE_LSR, tmp2[0]), ctx);
+ emit(ARM_MOV_SR(ARM_IP, rm, SRTYPE_LSR, rt), ctx);
+ if (dstk) {
+ emit(ARM_STR_I(ARM_LR, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_STR_I(ARM_IP, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ } else {
+ emit(ARM_MOV_R(rd, ARM_LR), ctx);
+ emit(ARM_MOV_R(rm, ARM_IP), ctx);
+ }
}
-static inline void update_on_xread(struct jit_ctx *ctx)
+/* dst = dst << val */
+static inline void emit_a32_lsh_i64(const u8 dst[], bool dstk,
+ const u32 val, struct jit_ctx *ctx){
+ const u8 *tmp = bpf2a32[TMP_REG_1];
+ const u8 *tmp2 = bpf2a32[TMP_REG_2];
+ /* Setup operands */
+ u8 rd = dstk ? tmp[1] : dst_lo;
+ u8 rm = dstk ? tmp[0] : dst_hi;
+
+ if (dstk) {
+ emit(ARM_LDR_I(rd, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_LDR_I(rm, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ }
+
+ /* Do LSH operation */
+ if (val < 32) {
+ emit(ARM_MOV_SI(tmp2[0], rm, SRTYPE_ASL, val), ctx);
+ emit(ARM_ORR_SI(rm, tmp2[0], rd, SRTYPE_LSR, 32 - val), ctx);
+ emit(ARM_MOV_SI(rd, rd, SRTYPE_ASL, val), ctx);
+ } else {
+ if (val == 32)
+ emit(ARM_MOV_R(rm, rd), ctx);
+ else
+ emit(ARM_MOV_SI(rm, rd, SRTYPE_ASL, val - 32), ctx);
+ emit(ARM_EOR_R(rd, rd, rd), ctx);
+ }
+
+ if (dstk) {
+ emit(ARM_STR_I(rd, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_STR_I(rm, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ }
+}
+
+/* dst = dst >> val */
+static inline void emit_a32_lsr_i64(const u8 dst[], bool dstk,
+ const u32 val, struct jit_ctx *ctx) {
+ const u8 *tmp = bpf2a32[TMP_REG_1];
+ const u8 *tmp2 = bpf2a32[TMP_REG_2];
+ /* Setup operands */
+ u8 rd = dstk ? tmp[1] : dst_lo;
+ u8 rm = dstk ? tmp[0] : dst_hi;
+
+ if (dstk) {
+ emit(ARM_LDR_I(rd, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_LDR_I(rm, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ }
+
+ /* Do LSR operation */
+ if (val < 32) {
+ emit(ARM_MOV_SI(tmp2[1], rd, SRTYPE_LSR, val), ctx);
+ emit(ARM_ORR_SI(rd, tmp2[1], rm, SRTYPE_ASL, 32 - val), ctx);
+ emit(ARM_MOV_SI(rm, rm, SRTYPE_LSR, val), ctx);
+ } else if (val == 32) {
+ emit(ARM_MOV_R(rd, rm), ctx);
+ emit(ARM_MOV_I(rm, 0), ctx);
+ } else {
+ emit(ARM_MOV_SI(rd, rm, SRTYPE_LSR, val - 32), ctx);
+ emit(ARM_MOV_I(rm, 0), ctx);
+ }
+
+ if (dstk) {
+ emit(ARM_STR_I(rd, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_STR_I(rm, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ }
+}
+
+/* dst = dst >> val (signed) */
+static inline void emit_a32_arsh_i64(const u8 dst[], bool dstk,
+ const u32 val, struct jit_ctx *ctx){
+ const u8 *tmp = bpf2a32[TMP_REG_1];
+ const u8 *tmp2 = bpf2a32[TMP_REG_2];
+ /* Setup operands */
+ u8 rd = dstk ? tmp[1] : dst_lo;
+ u8 rm = dstk ? tmp[0] : dst_hi;
+
+ if (dstk) {
+ emit(ARM_LDR_I(rd, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_LDR_I(rm, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ }
+
+ /* Do ARSH operation */
+ if (val < 32) {
+ emit(ARM_MOV_SI(tmp2[1], rd, SRTYPE_LSR, val), ctx);
+ emit(ARM_ORR_SI(rd, tmp2[1], rm, SRTYPE_ASL, 32 - val), ctx);
+ emit(ARM_MOV_SI(rm, rm, SRTYPE_ASR, val), ctx);
+ } else if (val == 32) {
+ emit(ARM_MOV_R(rd, rm), ctx);
+ emit(ARM_MOV_SI(rm, rm, SRTYPE_ASR, 31), ctx);
+ } else {
+ emit(ARM_MOV_SI(rd, rm, SRTYPE_ASR, val - 32), ctx);
+ emit(ARM_MOV_SI(rm, rm, SRTYPE_ASR, 31), ctx);
+ }
+
+ if (dstk) {
+ emit(ARM_STR_I(rd, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_STR_I(rm, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ }
+}
+
+static inline void emit_a32_mul_r64(const u8 dst[], const u8 src[], bool dstk,
+ bool sstk, struct jit_ctx *ctx) {
+ const u8 *tmp = bpf2a32[TMP_REG_1];
+ const u8 *tmp2 = bpf2a32[TMP_REG_2];
+ /* Setup operands for multiplication */
+ u8 rd = dstk ? tmp[1] : dst_lo;
+ u8 rm = dstk ? tmp[0] : dst_hi;
+ u8 rt = sstk ? tmp2[1] : src_lo;
+ u8 rn = sstk ? tmp2[0] : src_hi;
+
+ if (dstk) {
+ emit(ARM_LDR_I(rd, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_LDR_I(rm, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ }
+ if (sstk) {
+ emit(ARM_LDR_I(rt, ARM_SP, STACK_VAR(src_lo)), ctx);
+ emit(ARM_LDR_I(rn, ARM_SP, STACK_VAR(src_hi)), ctx);
+ }
+
+ /* Do Multiplication */
+ emit(ARM_MUL(ARM_IP, rd, rn), ctx);
+ emit(ARM_MUL(ARM_LR, rm, rt), ctx);
+ /* As we are using ARM_LR */
+ ctx->seen |= SEEN_CALL;
+ emit(ARM_ADD_R(ARM_LR, ARM_IP, ARM_LR), ctx);
+
+ emit(ARM_UMULL(ARM_IP, rm, rd, rt), ctx);
+ emit(ARM_ADD_R(rm, ARM_LR, rm), ctx);
+ if (dstk) {
+ emit(ARM_STR_I(ARM_IP, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_STR_I(rm, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ } else {
+ emit(ARM_MOV_R(rd, ARM_IP), ctx);
+ }
+}
+
+/* *(size *)(dst + off) = src */
+static inline void emit_str_r(const u8 dst, const u8 src, bool dstk,
+ const s32 off, struct jit_ctx *ctx, const u8 sz){
+ const u8 *tmp = bpf2a32[TMP_REG_1];
+ u8 rd = dstk ? tmp[1] : dst;
+
+ if (dstk)
+ emit(ARM_LDR_I(rd, ARM_SP, STACK_VAR(dst)), ctx);
+ if (off) {
+ emit_a32_mov_i(tmp[0], off, false, ctx);
+ emit(ARM_ADD_R(tmp[0], rd, tmp[0]), ctx);
+ rd = tmp[0];
+ }
+ switch (sz) {
+ case BPF_W:
+ /* Store a Word */
+ emit(ARM_STR_I(src, rd, 0), ctx);
+ break;
+ case BPF_H:
+ /* Store a HalfWord */
+ emit(ARM_STRH_I(src, rd, 0), ctx);
+ break;
+ case BPF_B:
+ /* Store a Byte */
+ emit(ARM_STRB_I(src, rd, 0), ctx);
+ break;
+ }
+}
+
+/* dst = *(size*)(src + off) */
+static inline void emit_ldx_r(const u8 dst, const u8 src, bool dstk,
+ const s32 off, struct jit_ctx *ctx, const u8 sz){
+ const u8 *tmp = bpf2a32[TMP_REG_1];
+ u8 rd = dstk ? tmp[1] : dst;
+ u8 rm = src;
+
+ if (off) {
+ emit_a32_mov_i(tmp[0], off, false, ctx);
+ emit(ARM_ADD_R(tmp[0], tmp[0], src), ctx);
+ rm = tmp[0];
+ }
+ switch (sz) {
+ case BPF_W:
+ /* Load a Word */
+ emit(ARM_LDR_I(rd, rm, 0), ctx);
+ break;
+ case BPF_H:
+ /* Load a HalfWord */
+ emit(ARM_LDRH_I(rd, rm, 0), ctx);
+ break;
+ case BPF_B:
+ /* Load a Byte */
+ emit(ARM_LDRB_I(rd, rm, 0), ctx);
+ break;
+ }
+ if (dstk)
+ emit(ARM_STR_I(rd, ARM_SP, STACK_VAR(dst)), ctx);
+}
+
+/* Arithmatic Operation */
+static inline void emit_ar_r(const u8 rd, const u8 rt, const u8 rm,
+ const u8 rn, struct jit_ctx *ctx, u8 op) {
+ switch (op) {
+ case BPF_JSET:
+ ctx->seen |= SEEN_CALL;
+ emit(ARM_AND_R(ARM_IP, rt, rn), ctx);
+ emit(ARM_AND_R(ARM_LR, rd, rm), ctx);
+ emit(ARM_ORRS_R(ARM_IP, ARM_LR, ARM_IP), ctx);
+ break;
+ case BPF_JEQ:
+ case BPF_JNE:
+ case BPF_JGT:
+ case BPF_JGE:
+ case BPF_JLE:
+ case BPF_JLT:
+ emit(ARM_CMP_R(rd, rm), ctx);
+ _emit(ARM_COND_EQ, ARM_CMP_R(rt, rn), ctx);
+ break;
+ case BPF_JSLE:
+ case BPF_JSGT:
+ emit(ARM_CMP_R(rn, rt), ctx);
+ emit(ARM_SBCS_R(ARM_IP, rm, rd), ctx);
+ break;
+ case BPF_JSLT:
+ case BPF_JSGE:
+ emit(ARM_CMP_R(rt, rn), ctx);
+ emit(ARM_SBCS_R(ARM_IP, rd, rm), ctx);
+ break;
+ }
+}
+
+static int out_offset = -1; /* initialized on the first pass of build_body() */
+static int emit_bpf_tail_call(struct jit_ctx *ctx)
{
- if (!(ctx->seen & SEEN_X))
- ctx->flags |= FLAG_NEED_X_RESET;
- ctx->seen |= SEEN_X;
+ /* bpf_tail_call(void *prog_ctx, struct bpf_array *array, u64 index) */
+ const u8 *r2 = bpf2a32[BPF_REG_2];
+ const u8 *r3 = bpf2a32[BPF_REG_3];
+ const u8 *tmp = bpf2a32[TMP_REG_1];
+ const u8 *tmp2 = bpf2a32[TMP_REG_2];
+ const u8 *tcc = bpf2a32[TCALL_CNT];
+ const int idx0 = ctx->idx;
+#define cur_offset (ctx->idx - idx0)
+#define jmp_offset (out_offset - (cur_offset))
+ u32 off, lo, hi;
+
+ /* if (index >= array->map.max_entries)
+ * goto out;
+ */
+ off = offsetof(struct bpf_array, map.max_entries);
+ /* array->map.max_entries */
+ emit_a32_mov_i(tmp[1], off, false, ctx);
+ emit(ARM_LDR_I(tmp2[1], ARM_SP, STACK_VAR(r2[1])), ctx);
+ emit(ARM_LDR_R(tmp[1], tmp2[1], tmp[1]), ctx);
+ /* index (64 bit) */
+ emit(ARM_LDR_I(tmp2[1], ARM_SP, STACK_VAR(r3[1])), ctx);
+ /* index >= array->map.max_entries */
+ emit(ARM_CMP_R(tmp2[1], tmp[1]), ctx);
+ _emit(ARM_COND_CS, ARM_B(jmp_offset), ctx);
+
+ /* if (tail_call_cnt > MAX_TAIL_CALL_CNT)
+ * goto out;
+ * tail_call_cnt++;
+ */
+ lo = (u32)MAX_TAIL_CALL_CNT;
+ hi = (u32)((u64)MAX_TAIL_CALL_CNT >> 32);
+ emit(ARM_LDR_I(tmp[1], ARM_SP, STACK_VAR(tcc[1])), ctx);
+ emit(ARM_LDR_I(tmp[0], ARM_SP, STACK_VAR(tcc[0])), ctx);
+ emit(ARM_CMP_I(tmp[0], hi), ctx);
+ _emit(ARM_COND_EQ, ARM_CMP_I(tmp[1], lo), ctx);
+ _emit(ARM_COND_HI, ARM_B(jmp_offset), ctx);
+ emit(ARM_ADDS_I(tmp[1], tmp[1], 1), ctx);
+ emit(ARM_ADC_I(tmp[0], tmp[0], 0), ctx);
+ emit(ARM_STR_I(tmp[1], ARM_SP, STACK_VAR(tcc[1])), ctx);
+ emit(ARM_STR_I(tmp[0], ARM_SP, STACK_VAR(tcc[0])), ctx);
+
+ /* prog = array->ptrs[index]
+ * if (prog == NULL)
+ * goto out;
+ */
+ off = offsetof(struct bpf_array, ptrs);
+ emit_a32_mov_i(tmp[1], off, false, ctx);
+ emit(ARM_LDR_I(tmp2[1], ARM_SP, STACK_VAR(r2[1])), ctx);
+ emit(ARM_ADD_R(tmp[1], tmp2[1], tmp[1]), ctx);
+ emit(ARM_LDR_I(tmp2[1], ARM_SP, STACK_VAR(r3[1])), ctx);
+ emit(ARM_MOV_SI(tmp[0], tmp2[1], SRTYPE_ASL, 2), ctx);
+ emit(ARM_LDR_R(tmp[1], tmp[1], tmp[0]), ctx);
+ emit(ARM_CMP_I(tmp[1], 0), ctx);
+ _emit(ARM_COND_EQ, ARM_B(jmp_offset), ctx);
+
+ /* goto *(prog->bpf_func + prologue_size); */
+ off = offsetof(struct bpf_prog, bpf_func);
+ emit_a32_mov_i(tmp2[1], off, false, ctx);
+ emit(ARM_LDR_R(tmp[1], tmp[1], tmp2[1]), ctx);
+ emit(ARM_ADD_I(tmp[1], tmp[1], ctx->prologue_bytes), ctx);
+ emit(ARM_BX(tmp[1]), ctx);
+
+ /* out: */
+ if (out_offset == -1)
+ out_offset = cur_offset;
+ if (cur_offset != out_offset) {
+ pr_err_once("tail_call out_offset = %d, expected %d!\n",
+ cur_offset, out_offset);
+ return -1;
+ }
+ return 0;
+#undef cur_offset
+#undef jmp_offset
}
-static int build_body(struct jit_ctx *ctx)
+/* 0xabcd => 0xcdab */
+static inline void emit_rev16(const u8 rd, const u8 rn, struct jit_ctx *ctx)
{
- void *load_func[] = {jit_get_skb_b, jit_get_skb_h, jit_get_skb_w};
- const struct bpf_prog *prog = ctx->skf;
- const struct sock_filter *inst;
- unsigned i, load_order, off, condt;
- int imm12;
- u32 k;
+#if __LINUX_ARM_ARCH__ < 6
+ const u8 *tmp2 = bpf2a32[TMP_REG_2];
+
+ emit(ARM_AND_I(tmp2[1], rn, 0xff), ctx);
+ emit(ARM_MOV_SI(tmp2[0], rn, SRTYPE_LSR, 8), ctx);
+ emit(ARM_AND_I(tmp2[0], tmp2[0], 0xff), ctx);
+ emit(ARM_ORR_SI(rd, tmp2[0], tmp2[1], SRTYPE_LSL, 8), ctx);
+#else /* ARMv6+ */
+ emit(ARM_REV16(rd, rn), ctx);
+#endif
+}
- for (i = 0; i < prog->len; i++) {
- u16 code;
+/* 0xabcdefgh => 0xghefcdab */
+static inline void emit_rev32(const u8 rd, const u8 rn, struct jit_ctx *ctx)
+{
+#if __LINUX_ARM_ARCH__ < 6
+ const u8 *tmp2 = bpf2a32[TMP_REG_2];
+
+ emit(ARM_AND_I(tmp2[1], rn, 0xff), ctx);
+ emit(ARM_MOV_SI(tmp2[0], rn, SRTYPE_LSR, 24), ctx);
+ emit(ARM_ORR_SI(ARM_IP, tmp2[0], tmp2[1], SRTYPE_LSL, 24), ctx);
+
+ emit(ARM_MOV_SI(tmp2[1], rn, SRTYPE_LSR, 8), ctx);
+ emit(ARM_AND_I(tmp2[1], tmp2[1], 0xff), ctx);
+ emit(ARM_MOV_SI(tmp2[0], rn, SRTYPE_LSR, 16), ctx);
+ emit(ARM_AND_I(tmp2[0], tmp2[0], 0xff), ctx);
+ emit(ARM_MOV_SI(tmp2[0], tmp2[0], SRTYPE_LSL, 8), ctx);
+ emit(ARM_ORR_SI(tmp2[0], tmp2[0], tmp2[1], SRTYPE_LSL, 16), ctx);
+ emit(ARM_ORR_R(rd, ARM_IP, tmp2[0]), ctx);
+
+#else /* ARMv6+ */
+ emit(ARM_REV(rd, rn), ctx);
+#endif
+}
- inst = &(prog->insns[i]);
- /* K as an immediate value operand */
- k = inst->k;
- code = bpf_anc_helper(inst);
+// push the scratch stack register on top of the stack
+static inline void emit_push_r64(const u8 src[], const u8 shift,
+ struct jit_ctx *ctx)
+{
+ const u8 *tmp2 = bpf2a32[TMP_REG_2];
+ u16 reg_set = 0;
- /* compute offsets only in the fake pass */
- if (ctx->target == NULL)
- ctx->offsets[i] = ctx->idx * 4;
+ emit(ARM_LDR_I(tmp2[1], ARM_SP, STACK_VAR(src[1]+shift)), ctx);
+ emit(ARM_LDR_I(tmp2[0], ARM_SP, STACK_VAR(src[0]+shift)), ctx);
+
+ reg_set = (1 << tmp2[1]) | (1 << tmp2[0]);
+ emit(ARM_PUSH(reg_set), ctx);
+}
+
+static void build_prologue(struct jit_ctx *ctx)
+{
+ const u8 r0 = bpf2a32[BPF_REG_0][1];
+ const u8 r2 = bpf2a32[BPF_REG_1][1];
+ const u8 r3 = bpf2a32[BPF_REG_1][0];
+ const u8 r4 = bpf2a32[BPF_REG_6][1];
+ const u8 r5 = bpf2a32[BPF_REG_6][0];
+ const u8 r6 = bpf2a32[TMP_REG_1][1];
+ const u8 r7 = bpf2a32[TMP_REG_1][0];
+ const u8 r8 = bpf2a32[TMP_REG_2][1];
+ const u8 r10 = bpf2a32[TMP_REG_2][0];
+ const u8 fplo = bpf2a32[BPF_REG_FP][1];
+ const u8 fphi = bpf2a32[BPF_REG_FP][0];
+ const u8 sp = ARM_SP;
+ const u8 *tcc = bpf2a32[TCALL_CNT];
+
+ u16 reg_set = 0;
+
+ /*
+ * eBPF prog stack layout
+ *
+ * high
+ * original ARM_SP => +-----+ eBPF prologue
+ * |FP/LR|
+ * current ARM_FP => +-----+
+ * | ... | callee saved registers
+ * eBPF fp register => +-----+ <= (BPF_FP)
+ * | ... | eBPF JIT scratch space
+ * | | eBPF prog stack
+ * +-----+
+ * |RSVD | JIT scratchpad
+ * current A64_SP => +-----+ <= (BPF_FP - STACK_SIZE)
+ * | |
+ * | ... | Function call stack
+ * | |
+ * +-----+
+ * low
+ */
+
+ /* Save callee saved registers. */
+ reg_set |= (1<<r4) | (1<<r5) | (1<<r6) | (1<<r7) | (1<<r8) | (1<<r10);
+#ifdef CONFIG_FRAME_POINTER
+ reg_set |= (1<<ARM_FP) | (1<<ARM_IP) | (1<<ARM_LR) | (1<<ARM_PC);
+ emit(ARM_MOV_R(ARM_IP, sp), ctx);
+ emit(ARM_PUSH(reg_set), ctx);
+ emit(ARM_SUB_I(ARM_FP, ARM_IP, 4), ctx);
+#else
+ /* Check if call instruction exists in BPF body */
+ if (ctx->seen & SEEN_CALL)
+ reg_set |= (1<<ARM_LR);
+ emit(ARM_PUSH(reg_set), ctx);
+#endif
+ /* Save frame pointer for later */
+ emit(ARM_SUB_I(ARM_IP, sp, SCRATCH_SIZE), ctx);
+
+ ctx->stack_size = imm8m(STACK_SIZE);
+
+ /* Set up function call stack */
+ emit(ARM_SUB_I(ARM_SP, ARM_SP, ctx->stack_size), ctx);
- switch (code) {
- case BPF_LD | BPF_IMM:
- emit_mov_i(r_A, k, ctx);
+ /* Set up BPF prog stack base register */
+ emit_a32_mov_r(fplo, ARM_IP, true, false, ctx);
+ emit_a32_mov_i(fphi, 0, true, ctx);
+
+ /* mov r4, 0 */
+ emit(ARM_MOV_I(r4, 0), ctx);
+
+ /* Move BPF_CTX to BPF_R1 */
+ emit(ARM_MOV_R(r3, r4), ctx);
+ emit(ARM_MOV_R(r2, r0), ctx);
+ /* Initialize Tail Count */
+ emit(ARM_STR_I(r4, ARM_SP, STACK_VAR(tcc[0])), ctx);
+ emit(ARM_STR_I(r4, ARM_SP, STACK_VAR(tcc[1])), ctx);
+ /* end of prologue */
+}
+
+static void build_epilogue(struct jit_ctx *ctx)
+{
+ const u8 r4 = bpf2a32[BPF_REG_6][1];
+ const u8 r5 = bpf2a32[BPF_REG_6][0];
+ const u8 r6 = bpf2a32[TMP_REG_1][1];
+ const u8 r7 = bpf2a32[TMP_REG_1][0];
+ const u8 r8 = bpf2a32[TMP_REG_2][1];
+ const u8 r10 = bpf2a32[TMP_REG_2][0];
+ u16 reg_set = 0;
+
+ /* unwind function call stack */
+ emit(ARM_ADD_I(ARM_SP, ARM_SP, ctx->stack_size), ctx);
+
+ /* restore callee saved registers. */
+ reg_set |= (1<<r4) | (1<<r5) | (1<<r6) | (1<<r7) | (1<<r8) | (1<<r10);
+#ifdef CONFIG_FRAME_POINTER
+ /* the first instruction of the prologue was: mov ip, sp */
+ reg_set |= (1<<ARM_FP) | (1<<ARM_SP) | (1<<ARM_PC);
+ emit(ARM_LDM(ARM_SP, reg_set), ctx);
+#else
+ if (ctx->seen & SEEN_CALL)
+ reg_set |= (1<<ARM_PC);
+ /* Restore callee saved registers. */
+ emit(ARM_POP(reg_set), ctx);
+ /* Return back to the callee function */
+ if (!(ctx->seen & SEEN_CALL))
+ emit(ARM_BX(ARM_LR), ctx);
+#endif
+}
+
+/*
+ * Convert an eBPF instruction to native instruction, i.e
+ * JITs an eBPF instruction.
+ * Returns :
+ * 0 - Successfully JITed an 8-byte eBPF instruction
+ * >0 - Successfully JITed a 16-byte eBPF instruction
+ * <0 - Failed to JIT.
+ */
+static int build_insn(const struct bpf_insn *insn, struct jit_ctx *ctx)
+{
+ const u8 code = insn->code;
+ const u8 *dst = bpf2a32[insn->dst_reg];
+ const u8 *src = bpf2a32[insn->src_reg];
+ const u8 *tmp = bpf2a32[TMP_REG_1];
+ const u8 *tmp2 = bpf2a32[TMP_REG_2];
+ const s16 off = insn->off;
+ const s32 imm = insn->imm;
+ const int i = insn - ctx->prog->insnsi;
+ const bool is64 = BPF_CLASS(code) == BPF_ALU64;
+ const bool dstk = is_on_stack(insn->dst_reg);
+ const bool sstk = is_on_stack(insn->src_reg);
+ u8 rd, rt, rm, rn;
+ s32 jmp_offset;
+
+#define check_imm(bits, imm) do { \
+ if ((((imm) > 0) && ((imm) >> (bits))) || \
+ (((imm) < 0) && (~(imm) >> (bits)))) { \
+ pr_info("[%2d] imm=%d(0x%x) out of range\n", \
+ i, imm, imm); \
+ return -EINVAL; \
+ } \
+} while (0)
+#define check_imm24(imm) check_imm(24, imm)
+
+ switch (code) {
+ /* ALU operations */
+
+ /* dst = src */
+ case BPF_ALU | BPF_MOV | BPF_K:
+ case BPF_ALU | BPF_MOV | BPF_X:
+ case BPF_ALU64 | BPF_MOV | BPF_K:
+ case BPF_ALU64 | BPF_MOV | BPF_X:
+ switch (BPF_SRC(code)) {
+ case BPF_X:
+ emit_a32_mov_r64(is64, dst, src, dstk, sstk, ctx);
break;
- case BPF_LD | BPF_W | BPF_LEN:
- ctx->seen |= SEEN_SKB;
- BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, len) != 4);
- emit(ARM_LDR_I(r_A, r_skb,
- offsetof(struct sk_buff, len)), ctx);
+ case BPF_K:
+ /* Sign-extend immediate value to destination reg */
+ emit_a32_mov_i64(is64, dst, imm, dstk, ctx);
break;
- case BPF_LD | BPF_MEM:
- /* A = scratch[k] */
- ctx->seen |= SEEN_MEM_WORD(k);
- emit(ARM_LDR_I(r_A, ARM_SP, SCRATCH_OFF(k)), ctx);
+ }
+ break;
+ /* dst = dst + src/imm */
+ /* dst = dst - src/imm */
+ /* dst = dst | src/imm */
+ /* dst = dst & src/imm */
+ /* dst = dst ^ src/imm */
+ /* dst = dst * src/imm */
+ /* dst = dst << src */
+ /* dst = dst >> src */
+ case BPF_ALU | BPF_ADD | BPF_K:
+ case BPF_ALU | BPF_ADD | BPF_X:
+ case BPF_ALU | BPF_SUB | BPF_K:
+ case BPF_ALU | BPF_SUB | BPF_X:
+ case BPF_ALU | BPF_OR | BPF_K:
+ case BPF_ALU | BPF_OR | BPF_X:
+ case BPF_ALU | BPF_AND | BPF_K:
+ case BPF_ALU | BPF_AND | BPF_X:
+ case BPF_ALU | BPF_XOR | BPF_K:
+ case BPF_ALU | BPF_XOR | BPF_X:
+ case BPF_ALU | BPF_MUL | BPF_K:
+ case BPF_ALU | BPF_MUL | BPF_X:
+ case BPF_ALU | BPF_LSH | BPF_X:
+ case BPF_ALU | BPF_RSH | BPF_X:
+ case BPF_ALU | BPF_ARSH | BPF_K:
+ case BPF_ALU | BPF_ARSH | BPF_X:
+ case BPF_ALU64 | BPF_ADD | BPF_K:
+ case BPF_ALU64 | BPF_ADD | BPF_X:
+ case BPF_ALU64 | BPF_SUB | BPF_K:
+ case BPF_ALU64 | BPF_SUB | BPF_X:
+ case BPF_ALU64 | BPF_OR | BPF_K:
+ case BPF_ALU64 | BPF_OR | BPF_X:
+ case BPF_ALU64 | BPF_AND | BPF_K:
+ case BPF_ALU64 | BPF_AND | BPF_X:
+ case BPF_ALU64 | BPF_XOR | BPF_K:
+ case BPF_ALU64 | BPF_XOR | BPF_X:
+ switch (BPF_SRC(code)) {
+ case BPF_X:
+ emit_a32_alu_r64(is64, dst, src, dstk, sstk,
+ ctx, BPF_OP(code));
break;
- case BPF_LD | BPF_W | BPF_ABS:
- load_order = 2;
- goto load;
- case BPF_LD | BPF_H | BPF_ABS:
- load_order = 1;
- goto load;
- case BPF_LD | BPF_B | BPF_ABS:
- load_order = 0;
-load:
- emit_mov_i(r_off, k, ctx);
-load_common:
- ctx->seen |= SEEN_DATA | SEEN_CALL;
-
- if (load_order > 0) {
- emit(ARM_SUB_I(r_scratch, r_skb_hl,
- 1 << load_order), ctx);
- emit(ARM_CMP_R(r_scratch, r_off), ctx);
- condt = ARM_COND_GE;
- } else {
- emit(ARM_CMP_R(r_skb_hl, r_off), ctx);
- condt = ARM_COND_HI;
- }
-
- /*
- * test for negative offset, only if we are
- * currently scheduled to take the fast
- * path. this will update the flags so that
- * the slowpath instruction are ignored if the
- * offset is negative.
- *
- * for loard_order == 0 the HI condition will
- * make loads at offset 0 take the slow path too.
+ case BPF_K:
+ /* Move immediate value to the temporary register
+ * and then do the ALU operation on the temporary
+ * register as this will sign-extend the immediate
+ * value into temporary reg and then it would be
+ * safe to do the operation on it.
*/
- _emit(condt, ARM_CMP_I(r_off, 0), ctx);
-
- _emit(condt, ARM_ADD_R(r_scratch, r_off, r_skb_data),
- ctx);
-
- if (load_order == 0)
- _emit(condt, ARM_LDRB_I(r_A, r_scratch, 0),
- ctx);
- else if (load_order == 1)
- emit_load_be16(condt, r_A, r_scratch, ctx);
- else if (load_order == 2)
- emit_load_be32(condt, r_A, r_scratch, ctx);
-
- _emit(condt, ARM_B(b_imm(i + 1, ctx)), ctx);
-
- /* the slowpath */
- emit_mov_i(ARM_R3, (u32)load_func[load_order], ctx);
- emit(ARM_MOV_R(ARM_R0, r_skb), ctx);
- /* the offset is already in R1 */
- emit_blx_r(ARM_R3, ctx);
- /* check the result of skb_copy_bits */
- emit(ARM_CMP_I(ARM_R1, 0), ctx);
- emit_err_ret(ARM_COND_NE, ctx);
- emit(ARM_MOV_R(r_A, ARM_R0), ctx);
+ emit_a32_mov_i64(is64, tmp2, imm, false, ctx);
+ emit_a32_alu_r64(is64, dst, tmp2, dstk, false,
+ ctx, BPF_OP(code));
break;
- case BPF_LD | BPF_W | BPF_IND:
- load_order = 2;
- goto load_ind;
- case BPF_LD | BPF_H | BPF_IND:
- load_order = 1;
- goto load_ind;
- case BPF_LD | BPF_B | BPF_IND:
- load_order = 0;
-load_ind:
- update_on_xread(ctx);
- OP_IMM3(ARM_ADD, r_off, r_X, k, ctx);
- goto load_common;
- case BPF_LDX | BPF_IMM:
- ctx->seen |= SEEN_X;
- emit_mov_i(r_X, k, ctx);
+ }
+ break;
+ /* dst = dst / src(imm) */
+ /* dst = dst % src(imm) */
+ case BPF_ALU | BPF_DIV | BPF_K:
+ case BPF_ALU | BPF_DIV | BPF_X:
+ case BPF_ALU | BPF_MOD | BPF_K:
+ case BPF_ALU | BPF_MOD | BPF_X:
+ rt = src_lo;
+ rd = dstk ? tmp2[1] : dst_lo;
+ if (dstk)
+ emit(ARM_LDR_I(rd, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ switch (BPF_SRC(code)) {
+ case BPF_X:
+ rt = sstk ? tmp2[0] : rt;
+ if (sstk)
+ emit(ARM_LDR_I(rt, ARM_SP, STACK_VAR(src_lo)),
+ ctx);
break;
- case BPF_LDX | BPF_W | BPF_LEN:
- ctx->seen |= SEEN_X | SEEN_SKB;
- emit(ARM_LDR_I(r_X, r_skb,
- offsetof(struct sk_buff, len)), ctx);
+ case BPF_K:
+ rt = tmp2[0];
+ emit_a32_mov_i(rt, imm, false, ctx);
break;
- case BPF_LDX | BPF_MEM:
- ctx->seen |= SEEN_X | SEEN_MEM_WORD(k);
- emit(ARM_LDR_I(r_X, ARM_SP, SCRATCH_OFF(k)), ctx);
+ }
+ emit_udivmod(rd, rd, rt, ctx, BPF_OP(code));
+ if (dstk)
+ emit(ARM_STR_I(rd, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit_a32_mov_i(dst_hi, 0, dstk, ctx);
+ break;
+ case BPF_ALU64 | BPF_DIV | BPF_K:
+ case BPF_ALU64 | BPF_DIV | BPF_X:
+ case BPF_ALU64 | BPF_MOD | BPF_K:
+ case BPF_ALU64 | BPF_MOD | BPF_X:
+ goto notyet;
+ /* dst = dst >> imm */
+ /* dst = dst << imm */
+ case BPF_ALU | BPF_RSH | BPF_K:
+ case BPF_ALU | BPF_LSH | BPF_K:
+ if (unlikely(imm > 31))
+ return -EINVAL;
+ if (imm)
+ emit_a32_alu_i(dst_lo, imm, dstk, ctx, BPF_OP(code));
+ emit_a32_mov_i(dst_hi, 0, dstk, ctx);
+ break;
+ /* dst = dst << imm */
+ case BPF_ALU64 | BPF_LSH | BPF_K:
+ if (unlikely(imm > 63))
+ return -EINVAL;
+ emit_a32_lsh_i64(dst, dstk, imm, ctx);
+ break;
+ /* dst = dst >> imm */
+ case BPF_ALU64 | BPF_RSH | BPF_K:
+ if (unlikely(imm > 63))
+ return -EINVAL;
+ emit_a32_lsr_i64(dst, dstk, imm, ctx);
+ break;
+ /* dst = dst << src */
+ case BPF_ALU64 | BPF_LSH | BPF_X:
+ emit_a32_lsh_r64(dst, src, dstk, sstk, ctx);
+ break;
+ /* dst = dst >> src */
+ case BPF_ALU64 | BPF_RSH | BPF_X:
+ emit_a32_lsr_r64(dst, src, dstk, sstk, ctx);
+ break;
+ /* dst = dst >> src (signed) */
+ case BPF_ALU64 | BPF_ARSH | BPF_X:
+ emit_a32_arsh_r64(dst, src, dstk, sstk, ctx);
+ break;
+ /* dst = dst >> imm (signed) */
+ case BPF_ALU64 | BPF_ARSH | BPF_K:
+ if (unlikely(imm > 63))
+ return -EINVAL;
+ emit_a32_arsh_i64(dst, dstk, imm, ctx);
+ break;
+ /* dst = ~dst */
+ case BPF_ALU | BPF_NEG:
+ emit_a32_alu_i(dst_lo, 0, dstk, ctx, BPF_OP(code));
+ emit_a32_mov_i(dst_hi, 0, dstk, ctx);
+ break;
+ /* dst = ~dst (64 bit) */
+ case BPF_ALU64 | BPF_NEG:
+ emit_a32_neg64(dst, dstk, ctx);
+ break;
+ /* dst = dst * src/imm */
+ case BPF_ALU64 | BPF_MUL | BPF_X:
+ case BPF_ALU64 | BPF_MUL | BPF_K:
+ switch (BPF_SRC(code)) {
+ case BPF_X:
+ emit_a32_mul_r64(dst, src, dstk, sstk, ctx);
break;
- case BPF_LDX | BPF_B | BPF_MSH:
- /* x = ((*(frame + k)) & 0xf) << 2; */
- ctx->seen |= SEEN_X | SEEN_DATA | SEEN_CALL;
- /* the interpreter should deal with the negative K */
- if ((int)k < 0)
- return -1;
- /* offset in r1: we might have to take the slow path */
- emit_mov_i(r_off, k, ctx);
- emit(ARM_CMP_R(r_skb_hl, r_off), ctx);
-
- /* load in r0: common with the slowpath */
- _emit(ARM_COND_HI, ARM_LDRB_R(ARM_R0, r_skb_data,
- ARM_R1), ctx);
- /*
- * emit_mov_i() might generate one or two instructions,
- * the same holds for emit_blx_r()
+ case BPF_K:
+ /* Move immediate value to the temporary register
+ * and then do the multiplication on it as this
+ * will sign-extend the immediate value into temp
+ * reg then it would be safe to do the operation
+ * on it.
*/
- _emit(ARM_COND_HI, ARM_B(b_imm(i + 1, ctx) - 2), ctx);
-
- emit(ARM_MOV_R(ARM_R0, r_skb), ctx);
- /* r_off is r1 */
- emit_mov_i(ARM_R3, (u32)jit_get_skb_b, ctx);
- emit_blx_r(ARM_R3, ctx);
- /* check the return value of skb_copy_bits */
- emit(ARM_CMP_I(ARM_R1, 0), ctx);
- emit_err_ret(ARM_COND_NE, ctx);
-
- emit(ARM_AND_I(r_X, ARM_R0, 0x00f), ctx);
- emit(ARM_LSL_I(r_X, r_X, 2), ctx);
- break;
- case BPF_ST:
- ctx->seen |= SEEN_MEM_WORD(k);
- emit(ARM_STR_I(r_A, ARM_SP, SCRATCH_OFF(k)), ctx);
- break;
- case BPF_STX:
- update_on_xread(ctx);
- ctx->seen |= SEEN_MEM_WORD(k);
- emit(ARM_STR_I(r_X, ARM_SP, SCRATCH_OFF(k)), ctx);
- break;
- case BPF_ALU | BPF_ADD | BPF_K:
- /* A += K */
- OP_IMM3(ARM_ADD, r_A, r_A, k, ctx);
- break;
- case BPF_ALU | BPF_ADD | BPF_X:
- update_on_xread(ctx);
- emit(ARM_ADD_R(r_A, r_A, r_X), ctx);
- break;
- case BPF_ALU | BPF_SUB | BPF_K:
- /* A -= K */
- OP_IMM3(ARM_SUB, r_A, r_A, k, ctx);
- break;
- case BPF_ALU | BPF_SUB | BPF_X:
- update_on_xread(ctx);
- emit(ARM_SUB_R(r_A, r_A, r_X), ctx);
- break;
- case BPF_ALU | BPF_MUL | BPF_K:
- /* A *= K */
- emit_mov_i(r_scratch, k, ctx);
- emit(ARM_MUL(r_A, r_A, r_scratch), ctx);
- break;
- case BPF_ALU | BPF_MUL | BPF_X:
- update_on_xread(ctx);
- emit(ARM_MUL(r_A, r_A, r_X), ctx);
+ emit_a32_mov_i64(is64, tmp2, imm, false, ctx);
+ emit_a32_mul_r64(dst, tmp2, dstk, false, ctx);
break;
- case BPF_ALU | BPF_DIV | BPF_K:
- if (k == 1)
- break;
- emit_mov_i(r_scratch, k, ctx);
- emit_udivmod(r_A, r_A, r_scratch, ctx, BPF_DIV);
- break;
- case BPF_ALU | BPF_DIV | BPF_X:
- update_on_xread(ctx);
- emit(ARM_CMP_I(r_X, 0), ctx);
- emit_err_ret(ARM_COND_EQ, ctx);
- emit_udivmod(r_A, r_A, r_X, ctx, BPF_DIV);
+ }
+ break;
+ /* dst = htole(dst) */
+ /* dst = htobe(dst) */
+ case BPF_ALU | BPF_END | BPF_FROM_LE:
+ case BPF_ALU | BPF_END | BPF_FROM_BE:
+ rd = dstk ? tmp[0] : dst_hi;
+ rt = dstk ? tmp[1] : dst_lo;
+ if (dstk) {
+ emit(ARM_LDR_I(rt, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_LDR_I(rd, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ }
+ if (BPF_SRC(code) == BPF_FROM_LE)
+ goto emit_bswap_uxt;
+ switch (imm) {
+ case 16:
+ emit_rev16(rt, rt, ctx);
+ goto emit_bswap_uxt;
+ case 32:
+ emit_rev32(rt, rt, ctx);
+ goto emit_bswap_uxt;
+ case 64:
+ /* Because of the usage of ARM_LR */
+ ctx->seen |= SEEN_CALL;
+ emit_rev32(ARM_LR, rt, ctx);
+ emit_rev32(rt, rd, ctx);
+ emit(ARM_MOV_R(rd, ARM_LR), ctx);
break;
- case BPF_ALU | BPF_MOD | BPF_K:
- if (k == 1) {
- emit_mov_i(r_A, 0, ctx);
- break;
- }
- emit_mov_i(r_scratch, k, ctx);
- emit_udivmod(r_A, r_A, r_scratch, ctx, BPF_MOD);
+ }
+ goto exit;
+emit_bswap_uxt:
+ switch (imm) {
+ case 16:
+ /* zero-extend 16 bits into 64 bits */
+#if __LINUX_ARM_ARCH__ < 6
+ emit_a32_mov_i(tmp2[1], 0xffff, false, ctx);
+ emit(ARM_AND_R(rt, rt, tmp2[1]), ctx);
+#else /* ARMv6+ */
+ emit(ARM_UXTH(rt, rt), ctx);
+#endif
+ emit(ARM_EOR_R(rd, rd, rd), ctx);
break;
- case BPF_ALU | BPF_MOD | BPF_X:
- update_on_xread(ctx);
- emit(ARM_CMP_I(r_X, 0), ctx);
- emit_err_ret(ARM_COND_EQ, ctx);
- emit_udivmod(r_A, r_A, r_X, ctx, BPF_MOD);
+ case 32:
+ /* zero-extend 32 bits into 64 bits */
+ emit(ARM_EOR_R(rd, rd, rd), ctx);
break;
- case BPF_ALU | BPF_OR | BPF_K:
- /* A |= K */
- OP_IMM3(ARM_ORR, r_A, r_A, k, ctx);
+ case 64:
+ /* nop */
break;
- case BPF_ALU | BPF_OR | BPF_X:
- update_on_xread(ctx);
- emit(ARM_ORR_R(r_A, r_A, r_X), ctx);
+ }
+exit:
+ if (dstk) {
+ emit(ARM_STR_I(rt, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_STR_I(rd, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ }
+ break;
+ /* dst = imm64 */
+ case BPF_LD | BPF_IMM | BPF_DW:
+ {
+ const struct bpf_insn insn1 = insn[1];
+ u32 hi, lo = imm;
+
+ hi = insn1.imm;
+ emit_a32_mov_i(dst_lo, lo, dstk, ctx);
+ emit_a32_mov_i(dst_hi, hi, dstk, ctx);
+
+ return 1;
+ }
+ /* LDX: dst = *(size *)(src + off) */
+ case BPF_LDX | BPF_MEM | BPF_W:
+ case BPF_LDX | BPF_MEM | BPF_H:
+ case BPF_LDX | BPF_MEM | BPF_B:
+ case BPF_LDX | BPF_MEM | BPF_DW:
+ rn = sstk ? tmp2[1] : src_lo;
+ if (sstk)
+ emit(ARM_LDR_I(rn, ARM_SP, STACK_VAR(src_lo)), ctx);
+ switch (BPF_SIZE(code)) {
+ case BPF_W:
+ /* Load a Word */
+ case BPF_H:
+ /* Load a Half-Word */
+ case BPF_B:
+ /* Load a Byte */
+ emit_ldx_r(dst_lo, rn, dstk, off, ctx, BPF_SIZE(code));
+ emit_a32_mov_i(dst_hi, 0, dstk, ctx);
break;
- case BPF_ALU | BPF_XOR | BPF_K:
- /* A ^= K; */
- OP_IMM3(ARM_EOR, r_A, r_A, k, ctx);
+ case BPF_DW:
+ /* Load a double word */
+ emit_ldx_r(dst_lo, rn, dstk, off, ctx, BPF_W);
+ emit_ldx_r(dst_hi, rn, dstk, off+4, ctx, BPF_W);
break;
- case BPF_ANC | SKF_AD_ALU_XOR_X:
- case BPF_ALU | BPF_XOR | BPF_X:
- /* A ^= X */
- update_on_xread(ctx);
- emit(ARM_EOR_R(r_A, r_A, r_X), ctx);
+ }
+ break;
+ /* R0 = ntohx(*(size *)(((struct sk_buff *)R6)->data + imm)) */
+ case BPF_LD | BPF_ABS | BPF_W:
+ case BPF_LD | BPF_ABS | BPF_H:
+ case BPF_LD | BPF_ABS | BPF_B:
+ /* R0 = ntohx(*(size *)(((struct sk_buff *)R6)->data + src + imm)) */
+ case BPF_LD | BPF_IND | BPF_W:
+ case BPF_LD | BPF_IND | BPF_H:
+ case BPF_LD | BPF_IND | BPF_B:
+ {
+ const u8 r4 = bpf2a32[BPF_REG_6][1]; /* r4 = ptr to sk_buff */
+ const u8 r0 = bpf2a32[BPF_REG_0][1]; /*r0: struct sk_buff *skb*/
+ /* rtn value */
+ const u8 r1 = bpf2a32[BPF_REG_0][0]; /* r1: int k */
+ const u8 r2 = bpf2a32[BPF_REG_1][1]; /* r2: unsigned int size */
+ const u8 r3 = bpf2a32[BPF_REG_1][0]; /* r3: void *buffer */
+ const u8 r6 = bpf2a32[TMP_REG_1][1]; /* r6: void *(*func)(..) */
+ int size;
+
+ /* Setting up first argument */
+ emit(ARM_MOV_R(r0, r4), ctx);
+
+ /* Setting up second argument */
+ emit_a32_mov_i(r1, imm, false, ctx);
+ if (BPF_MODE(code) == BPF_IND)
+ emit_a32_alu_r(r1, src_lo, false, sstk, ctx,
+ false, false, BPF_ADD);
+
+ /* Setting up third argument */
+ switch (BPF_SIZE(code)) {
+ case BPF_W:
+ size = 4;
break;
- case BPF_ALU | BPF_AND | BPF_K:
- /* A &= K */
- OP_IMM3(ARM_AND, r_A, r_A, k, ctx);
+ case BPF_H:
+ size = 2;
break;
- case BPF_ALU | BPF_AND | BPF_X:
- update_on_xread(ctx);
- emit(ARM_AND_R(r_A, r_A, r_X), ctx);
+ case BPF_B:
+ size = 1;
break;
- case BPF_ALU | BPF_LSH | BPF_K:
- if (unlikely(k > 31))
- return -1;
- emit(ARM_LSL_I(r_A, r_A, k), ctx);
+ default:
+ return -EINVAL;
+ }
+ emit_a32_mov_i(r2, size, false, ctx);
+
+ /* Setting up fourth argument */
+ emit(ARM_ADD_I(r3, ARM_SP, imm8m(SKB_BUFFER)), ctx);
+
+ /* Setting up function pointer to call */
+ emit_a32_mov_i(r6, (unsigned int)bpf_load_pointer, false, ctx);
+ emit_blx_r(r6, ctx);
+
+ emit(ARM_EOR_R(r1, r1, r1), ctx);
+ /* Check if return address is NULL or not.
+ * if NULL then jump to epilogue
+ * else continue to load the value from retn address
+ */
+ emit(ARM_CMP_I(r0, 0), ctx);
+ jmp_offset = epilogue_offset(ctx);
+ check_imm24(jmp_offset);
+ _emit(ARM_COND_EQ, ARM_B(jmp_offset), ctx);
+
+ /* Load value from the address */
+ switch (BPF_SIZE(code)) {
+ case BPF_W:
+ emit(ARM_LDR_I(r0, r0, 0), ctx);
+ emit_rev32(r0, r0, ctx);
break;
- case BPF_ALU | BPF_LSH | BPF_X:
- update_on_xread(ctx);
- emit(ARM_LSL_R(r_A, r_A, r_X), ctx);
+ case BPF_H:
+ emit(ARM_LDRH_I(r0, r0, 0), ctx);
+ emit_rev16(r0, r0, ctx);
break;
- case BPF_ALU | BPF_RSH | BPF_K:
- if (unlikely(k > 31))
- return -1;
- if (k)
- emit(ARM_LSR_I(r_A, r_A, k), ctx);
+ case BPF_B:
+ emit(ARM_LDRB_I(r0, r0, 0), ctx);
+ /* No need to reverse */
break;
- case BPF_ALU | BPF_RSH | BPF_X:
- update_on_xread(ctx);
- emit(ARM_LSR_R(r_A, r_A, r_X), ctx);
+ }
+ break;
+ }
+ /* ST: *(size *)(dst + off) = imm */
+ case BPF_ST | BPF_MEM | BPF_W:
+ case BPF_ST | BPF_MEM | BPF_H:
+ case BPF_ST | BPF_MEM | BPF_B:
+ case BPF_ST | BPF_MEM | BPF_DW:
+ switch (BPF_SIZE(code)) {
+ case BPF_DW:
+ /* Sign-extend immediate value into temp reg */
+ emit_a32_mov_i64(true, tmp2, imm, false, ctx);
+ emit_str_r(dst_lo, tmp2[1], dstk, off, ctx, BPF_W);
+ emit_str_r(dst_lo, tmp2[0], dstk, off+4, ctx, BPF_W);
break;
- case BPF_ALU | BPF_NEG:
- /* A = -A */
- emit(ARM_RSB_I(r_A, r_A, 0), ctx);
+ case BPF_W:
+ case BPF_H:
+ case BPF_B:
+ emit_a32_mov_i(tmp2[1], imm, false, ctx);
+ emit_str_r(dst_lo, tmp2[1], dstk, off, ctx,
+ BPF_SIZE(code));
break;
- case BPF_JMP | BPF_JA:
- /* pc += K */
- emit(ARM_B(b_imm(i + k + 1, ctx)), ctx);
+ }
+ break;
+ /* STX XADD: lock *(u32 *)(dst + off) += src */
+ case BPF_STX | BPF_XADD | BPF_W:
+ /* STX XADD: lock *(u64 *)(dst + off) += src */
+ case BPF_STX | BPF_XADD | BPF_DW:
+ goto notyet;
+ /* STX: *(size *)(dst + off) = src */
+ case BPF_STX | BPF_MEM | BPF_W:
+ case BPF_STX | BPF_MEM | BPF_H:
+ case BPF_STX | BPF_MEM | BPF_B:
+ case BPF_STX | BPF_MEM | BPF_DW:
+ {
+ u8 sz = BPF_SIZE(code);
+
+ rn = sstk ? tmp2[1] : src_lo;
+ rm = sstk ? tmp2[0] : src_hi;
+ if (sstk) {
+ emit(ARM_LDR_I(rn, ARM_SP, STACK_VAR(src_lo)), ctx);
+ emit(ARM_LDR_I(rm, ARM_SP, STACK_VAR(src_hi)), ctx);
+ }
+
+ /* Store the value */
+ if (BPF_SIZE(code) == BPF_DW) {
+ emit_str_r(dst_lo, rn, dstk, off, ctx, BPF_W);
+ emit_str_r(dst_lo, rm, dstk, off+4, ctx, BPF_W);
+ } else {
+ emit_str_r(dst_lo, rn, dstk, off, ctx, sz);
+ }
+ break;
+ }
+ /* PC += off if dst == src */
+ /* PC += off if dst > src */
+ /* PC += off if dst >= src */
+ /* PC += off if dst < src */
+ /* PC += off if dst <= src */
+ /* PC += off if dst != src */
+ /* PC += off if dst > src (signed) */
+ /* PC += off if dst >= src (signed) */
+ /* PC += off if dst < src (signed) */
+ /* PC += off if dst <= src (signed) */
+ /* PC += off if dst & src */
+ case BPF_JMP | BPF_JEQ | BPF_X:
+ case BPF_JMP | BPF_JGT | BPF_X:
+ case BPF_JMP | BPF_JGE | BPF_X:
+ case BPF_JMP | BPF_JNE | BPF_X:
+ case BPF_JMP | BPF_JSGT | BPF_X:
+ case BPF_JMP | BPF_JSGE | BPF_X:
+ case BPF_JMP | BPF_JSET | BPF_X:
+ case BPF_JMP | BPF_JLE | BPF_X:
+ case BPF_JMP | BPF_JLT | BPF_X:
+ case BPF_JMP | BPF_JSLT | BPF_X:
+ case BPF_JMP | BPF_JSLE | BPF_X:
+ /* Setup source registers */
+ rm = sstk ? tmp2[0] : src_hi;
+ rn = sstk ? tmp2[1] : src_lo;
+ if (sstk) {
+ emit(ARM_LDR_I(rn, ARM_SP, STACK_VAR(src_lo)), ctx);
+ emit(ARM_LDR_I(rm, ARM_SP, STACK_VAR(src_hi)), ctx);
+ }
+ goto go_jmp;
+ /* PC += off if dst == imm */
+ /* PC += off if dst > imm */
+ /* PC += off if dst >= imm */
+ /* PC += off if dst < imm */
+ /* PC += off if dst <= imm */
+ /* PC += off if dst != imm */
+ /* PC += off if dst > imm (signed) */
+ /* PC += off if dst >= imm (signed) */
+ /* PC += off if dst < imm (signed) */
+ /* PC += off if dst <= imm (signed) */
+ /* PC += off if dst & imm */
+ case BPF_JMP | BPF_JEQ | BPF_K:
+ case BPF_JMP | BPF_JGT | BPF_K:
+ case BPF_JMP | BPF_JGE | BPF_K:
+ case BPF_JMP | BPF_JNE | BPF_K:
+ case BPF_JMP | BPF_JSGT | BPF_K:
+ case BPF_JMP | BPF_JSGE | BPF_K:
+ case BPF_JMP | BPF_JSET | BPF_K:
+ case BPF_JMP | BPF_JLT | BPF_K:
+ case BPF_JMP | BPF_JLE | BPF_K:
+ case BPF_JMP | BPF_JSLT | BPF_K:
+ case BPF_JMP | BPF_JSLE | BPF_K:
+ if (off == 0)
break;
- case BPF_JMP | BPF_JEQ | BPF_K:
- /* pc += (A == K) ? pc->jt : pc->jf */
- condt = ARM_COND_EQ;
- goto cmp_imm;
- case BPF_JMP | BPF_JGT | BPF_K:
- /* pc += (A > K) ? pc->jt : pc->jf */
- condt = ARM_COND_HI;
- goto cmp_imm;
- case BPF_JMP | BPF_JGE | BPF_K:
- /* pc += (A >= K) ? pc->jt : pc->jf */
- condt = ARM_COND_HS;
-cmp_imm:
- imm12 = imm8m(k);
- if (imm12 < 0) {
- emit_mov_i_no8m(r_scratch, k, ctx);
- emit(ARM_CMP_R(r_A, r_scratch), ctx);
- } else {
- emit(ARM_CMP_I(r_A, imm12), ctx);
- }
-cond_jump:
- if (inst->jt)
- _emit(condt, ARM_B(b_imm(i + inst->jt + 1,
- ctx)), ctx);
- if (inst->jf)
- _emit(condt ^ 1, ARM_B(b_imm(i + inst->jf + 1,
- ctx)), ctx);
+ rm = tmp2[0];
+ rn = tmp2[1];
+ /* Sign-extend immediate value */
+ emit_a32_mov_i64(true, tmp2, imm, false, ctx);
+go_jmp:
+ /* Setup destination register */
+ rd = dstk ? tmp[0] : dst_hi;
+ rt = dstk ? tmp[1] : dst_lo;
+ if (dstk) {
+ emit(ARM_LDR_I(rt, ARM_SP, STACK_VAR(dst_lo)), ctx);
+ emit(ARM_LDR_I(rd, ARM_SP, STACK_VAR(dst_hi)), ctx);
+ }
+
+ /* Check for the condition */
+ emit_ar_r(rd, rt, rm, rn, ctx, BPF_OP(code));
+
+ /* Setup JUMP instruction */
+ jmp_offset = bpf2a32_offset(i+off, i, ctx);
+ switch (BPF_OP(code)) {
+ case BPF_JNE:
+ case BPF_JSET:
+ _emit(ARM_COND_NE, ARM_B(jmp_offset), ctx);
break;
- case BPF_JMP | BPF_JEQ | BPF_X:
- /* pc += (A == X) ? pc->jt : pc->jf */
- condt = ARM_COND_EQ;
- goto cmp_x;
- case BPF_JMP | BPF_JGT | BPF_X:
- /* pc += (A > X) ? pc->jt : pc->jf */
- condt = ARM_COND_HI;
- goto cmp_x;
- case BPF_JMP | BPF_JGE | BPF_X:
- /* pc += (A >= X) ? pc->jt : pc->jf */
- condt = ARM_COND_CS;
-cmp_x:
- update_on_xread(ctx);
- emit(ARM_CMP_R(r_A, r_X), ctx);
- goto cond_jump;
- case BPF_JMP | BPF_JSET | BPF_K:
- /* pc += (A & K) ? pc->jt : pc->jf */
- condt = ARM_COND_NE;
- /* not set iff all zeroes iff Z==1 iff EQ */
-
- imm12 = imm8m(k);
- if (imm12 < 0) {
- emit_mov_i_no8m(r_scratch, k, ctx);
- emit(ARM_TST_R(r_A, r_scratch), ctx);
- } else {
- emit(ARM_TST_I(r_A, imm12), ctx);
- }
- goto cond_jump;
- case BPF_JMP | BPF_JSET | BPF_X:
- /* pc += (A & X) ? pc->jt : pc->jf */
- update_on_xread(ctx);
- condt = ARM_COND_NE;
- emit(ARM_TST_R(r_A, r_X), ctx);
- goto cond_jump;
- case BPF_RET | BPF_A:
- emit(ARM_MOV_R(ARM_R0, r_A), ctx);
- goto b_epilogue;
- case BPF_RET | BPF_K:
- if ((k == 0) && (ctx->ret0_fp_idx < 0))
- ctx->ret0_fp_idx = i;
- emit_mov_i(ARM_R0, k, ctx);
-b_epilogue:
- if (i != ctx->skf->len - 1)
- emit(ARM_B(b_imm(prog->len, ctx)), ctx);
+ case BPF_JEQ:
+ _emit(ARM_COND_EQ, ARM_B(jmp_offset), ctx);
break;
- case BPF_MISC | BPF_TAX:
- /* X = A */
- ctx->seen |= SEEN_X;
- emit(ARM_MOV_R(r_X, r_A), ctx);
+ case BPF_JGT:
+ _emit(ARM_COND_HI, ARM_B(jmp_offset), ctx);
break;
- case BPF_MISC | BPF_TXA:
- /* A = X */
- update_on_xread(ctx);
- emit(ARM_MOV_R(r_A, r_X), ctx);
+ case BPF_JGE:
+ _emit(ARM_COND_CS, ARM_B(jmp_offset), ctx);
break;
- case BPF_ANC | SKF_AD_PROTOCOL:
- /* A = ntohs(skb->protocol) */
- ctx->seen |= SEEN_SKB;
- BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff,
- protocol) != 2);
- off = offsetof(struct sk_buff, protocol);
- emit(ARM_LDRH_I(r_scratch, r_skb, off), ctx);
- emit_swap16(r_A, r_scratch, ctx);
+ case BPF_JSGT:
+ _emit(ARM_COND_LT, ARM_B(jmp_offset), ctx);
break;
- case BPF_ANC | SKF_AD_CPU:
- /* r_scratch = current_thread_info() */
- OP_IMM3(ARM_BIC, r_scratch, ARM_SP, THREAD_SIZE - 1, ctx);
- /* A = current_thread_info()->cpu */
- BUILD_BUG_ON(FIELD_SIZEOF(struct thread_info, cpu) != 4);
- off = offsetof(struct thread_info, cpu);
- emit(ARM_LDR_I(r_A, r_scratch, off), ctx);
+ case BPF_JSGE:
+ _emit(ARM_COND_GE, ARM_B(jmp_offset), ctx);
break;
- case BPF_ANC | SKF_AD_IFINDEX:
- case BPF_ANC | SKF_AD_HATYPE:
- /* A = skb->dev->ifindex */
- /* A = skb->dev->type */
- ctx->seen |= SEEN_SKB;
- off = offsetof(struct sk_buff, dev);
- emit(ARM_LDR_I(r_scratch, r_skb, off), ctx);
-
- emit(ARM_CMP_I(r_scratch, 0), ctx);
- emit_err_ret(ARM_COND_EQ, ctx);
-
- BUILD_BUG_ON(FIELD_SIZEOF(struct net_device,
- ifindex) != 4);
- BUILD_BUG_ON(FIELD_SIZEOF(struct net_device,
- type) != 2);
-
- if (code == (BPF_ANC | SKF_AD_IFINDEX)) {
- off = offsetof(struct net_device, ifindex);
- emit(ARM_LDR_I(r_A, r_scratch, off), ctx);
- } else {
- /*
- * offset of field "type" in "struct
- * net_device" is above what can be
- * used in the ldrh rd, [rn, #imm]
- * instruction, so load the offset in
- * a register and use ldrh rd, [rn, rm]
- */
- off = offsetof(struct net_device, type);
- emit_mov_i(ARM_R3, off, ctx);
- emit(ARM_LDRH_R(r_A, r_scratch, ARM_R3), ctx);
- }
+ case BPF_JLE:
+ _emit(ARM_COND_LS, ARM_B(jmp_offset), ctx);
break;
- case BPF_ANC | SKF_AD_MARK:
- ctx->seen |= SEEN_SKB;
- BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, mark) != 4);
- off = offsetof(struct sk_buff, mark);
- emit(ARM_LDR_I(r_A, r_skb, off), ctx);
+ case BPF_JLT:
+ _emit(ARM_COND_CC, ARM_B(jmp_offset), ctx);
break;
- case BPF_ANC | SKF_AD_RXHASH:
- ctx->seen |= SEEN_SKB;
- BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, hash) != 4);
- off = offsetof(struct sk_buff, hash);
- emit(ARM_LDR_I(r_A, r_skb, off), ctx);
+ case BPF_JSLT:
+ _emit(ARM_COND_LT, ARM_B(jmp_offset), ctx);
break;
- case BPF_ANC | SKF_AD_VLAN_TAG:
- case BPF_ANC | SKF_AD_VLAN_TAG_PRESENT:
- ctx->seen |= SEEN_SKB;
- BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, vlan_tci) != 2);
- off = offsetof(struct sk_buff, vlan_tci);
- emit(ARM_LDRH_I(r_A, r_skb, off), ctx);
- if (code == (BPF_ANC | SKF_AD_VLAN_TAG))
- OP_IMM3(ARM_AND, r_A, r_A, ~VLAN_TAG_PRESENT, ctx);
- else {
- OP_IMM3(ARM_LSR, r_A, r_A, 12, ctx);
- OP_IMM3(ARM_AND, r_A, r_A, 0x1, ctx);
- }
+ case BPF_JSLE:
+ _emit(ARM_COND_GE, ARM_B(jmp_offset), ctx);
break;
- case BPF_ANC | SKF_AD_PKTTYPE:
- ctx->seen |= SEEN_SKB;
- BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff,
- __pkt_type_offset[0]) != 1);
- off = PKT_TYPE_OFFSET();
- emit(ARM_LDRB_I(r_A, r_skb, off), ctx);
- emit(ARM_AND_I(r_A, r_A, PKT_TYPE_MAX), ctx);
-#ifdef __BIG_ENDIAN_BITFIELD
- emit(ARM_LSR_I(r_A, r_A, 5), ctx);
-#endif
+ }
+ break;
+ /* JMP OFF */
+ case BPF_JMP | BPF_JA:
+ {
+ if (off == 0)
break;
- case BPF_ANC | SKF_AD_QUEUE:
- ctx->seen |= SEEN_SKB;
- BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff,
- queue_mapping) != 2);
- BUILD_BUG_ON(offsetof(struct sk_buff,
- queue_mapping) > 0xff);
- off = offsetof(struct sk_buff, queue_mapping);
- emit(ARM_LDRH_I(r_A, r_skb, off), ctx);
+ jmp_offset = bpf2a32_offset(i+off, i, ctx);
+ check_imm24(jmp_offset);
+ emit(ARM_B(jmp_offset), ctx);
+ break;
+ }
+ /* tail call */
+ case BPF_JMP | BPF_TAIL_CALL:
+ if (emit_bpf_tail_call(ctx))
+ return -EFAULT;
+ break;
+ /* function call */
+ case BPF_JMP | BPF_CALL:
+ {
+ const u8 *r0 = bpf2a32[BPF_REG_0];
+ const u8 *r1 = bpf2a32[BPF_REG_1];
+ const u8 *r2 = bpf2a32[BPF_REG_2];
+ const u8 *r3 = bpf2a32[BPF_REG_3];
+ const u8 *r4 = bpf2a32[BPF_REG_4];
+ const u8 *r5 = bpf2a32[BPF_REG_5];
+ const u32 func = (u32)__bpf_call_base + (u32)imm;
+
+ emit_a32_mov_r64(true, r0, r1, false, false, ctx);
+ emit_a32_mov_r64(true, r1, r2, false, true, ctx);
+ emit_push_r64(r5, 0, ctx);
+ emit_push_r64(r4, 8, ctx);
+ emit_push_r64(r3, 16, ctx);
+
+ emit_a32_mov_i(tmp[1], func, false, ctx);
+ emit_blx_r(tmp[1], ctx);
+
+ emit(ARM_ADD_I(ARM_SP, ARM_SP, imm8m(24)), ctx); // callee clean
+ break;
+ }
+ /* function return */
+ case BPF_JMP | BPF_EXIT:
+ /* Optimization: when last instruction is EXIT
+ * simply fallthrough to epilogue.
+ */
+ if (i == ctx->prog->len - 1)
break;
- case BPF_ANC | SKF_AD_PAY_OFFSET:
- ctx->seen |= SEEN_SKB | SEEN_CALL;
+ jmp_offset = epilogue_offset(ctx);
+ check_imm24(jmp_offset);
+ emit(ARM_B(jmp_offset), ctx);
+ break;
+notyet:
+ pr_info_once("*** NOT YET: opcode %02x ***\n", code);
+ return -EFAULT;
+ default:
+ pr_err_once("unknown opcode %02x\n", code);
+ return -EINVAL;
+ }
- emit(ARM_MOV_R(ARM_R0, r_skb), ctx);
- emit_mov_i(ARM_R3, (unsigned int)skb_get_poff, ctx);
- emit_blx_r(ARM_R3, ctx);
- emit(ARM_MOV_R(r_A, ARM_R0), ctx);
- break;
- case BPF_LDX | BPF_W | BPF_ABS:
- /*
- * load a 32bit word from struct seccomp_data.
- * seccomp_check_filter() will already have checked
- * that k is 32bit aligned and lies within the
- * struct seccomp_data.
- */
- ctx->seen |= SEEN_SKB;
- emit(ARM_LDR_I(r_A, r_skb, k), ctx);
- break;
- default:
- return -1;
+ if (ctx->flags & FLAG_IMM_OVERFLOW)
+ /*
+ * this instruction generated an overflow when
+ * trying to access the literal pool, so
+ * delegate this filter to the kernel interpreter.
+ */
+ return -1;
+ return 0;
+}
+
+static int build_body(struct jit_ctx *ctx)
+{
+ const struct bpf_prog *prog = ctx->prog;
+ unsigned int i;
+
+ for (i = 0; i < prog->len; i++) {
+ const struct bpf_insn *insn = &(prog->insnsi[i]);
+ int ret;
+
+ ret = build_insn(insn, ctx);
+
+ /* It's used with loading the 64 bit immediate value. */
+ if (ret > 0) {
+ i++;
+ if (ctx->target == NULL)
+ ctx->offsets[i] = ctx->idx;
+ continue;
}
- if (ctx->flags & FLAG_IMM_OVERFLOW)
- /*
- * this instruction generated an overflow when
- * trying to access the literal pool, so
- * delegate this filter to the kernel interpreter.
- */
- return -1;
+ if (ctx->target == NULL)
+ ctx->offsets[i] = ctx->idx;
+
+ /* If unsuccesfull, return with error code */
+ if (ret)
+ return ret;
}
+ return 0;
+}
- /* compute offsets only during the first pass */
- if (ctx->target == NULL)
- ctx->offsets[i] = ctx->idx * 4;
+static int validate_code(struct jit_ctx *ctx)
+{
+ int i;
+
+ for (i = 0; i < ctx->idx; i++) {
+ if (ctx->target[i] == __opcode_to_mem_arm(ARM_INST_UDF))
+ return -1;
+ }
return 0;
}
+void bpf_jit_compile(struct bpf_prog *prog)
+{
+ /* Nothing to do here. We support Internal BPF. */
+}
-void bpf_jit_compile(struct bpf_prog *fp)
+struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
{
+ struct bpf_prog *tmp, *orig_prog = prog;
struct bpf_binary_header *header;
+ bool tmp_blinded = false;
struct jit_ctx ctx;
- unsigned tmp_idx;
- unsigned alloc_size;
- u8 *target_ptr;
+ unsigned int tmp_idx;
+ unsigned int image_size;
+ u8 *image_ptr;
+ /* If BPF JIT was not enabled then we must fall back to
+ * the interpreter.
+ */
if (!bpf_jit_enable)
- return;
+ return orig_prog;
- memset(&ctx, 0, sizeof(ctx));
- ctx.skf = fp;
- ctx.ret0_fp_idx = -1;
+ /* If constant blinding was enabled and we failed during blinding
+ * then we must fall back to the interpreter. Otherwise, we save
+ * the new JITed code.
+ */
+ tmp = bpf_jit_blind_constants(prog);
- ctx.offsets = kzalloc(4 * (ctx.skf->len + 1), GFP_KERNEL);
- if (ctx.offsets == NULL)
- return;
+ if (IS_ERR(tmp))
+ return orig_prog;
+ if (tmp != prog) {
+ tmp_blinded = true;
+ prog = tmp;
+ }
- /* fake pass to fill in the ctx->seen */
- if (unlikely(build_body(&ctx)))
+ memset(&ctx, 0, sizeof(ctx));
+ ctx.prog = prog;
+
+ /* Not able to allocate memory for offsets[] , then
+ * we must fall back to the interpreter
+ */
+ ctx.offsets = kcalloc(prog->len, sizeof(int), GFP_KERNEL);
+ if (ctx.offsets == NULL) {
+ prog = orig_prog;
goto out;
+ }
+
+ /* 1) fake pass to find in the length of the JITed code,
+ * to compute ctx->offsets and other context variables
+ * needed to compute final JITed code.
+ * Also, calculate random starting pointer/start of JITed code
+ * which is prefixed by random number of fault instructions.
+ *
+ * If the first pass fails then there is no chance of it
+ * being successful in the second pass, so just fall back
+ * to the interpreter.
+ */
+ if (build_body(&ctx)) {
+ prog = orig_prog;
+ goto out_off;
+ }
tmp_idx = ctx.idx;
build_prologue(&ctx);
ctx.prologue_bytes = (ctx.idx - tmp_idx) * 4;
+ ctx.epilogue_offset = ctx.idx;
+
#if __LINUX_ARM_ARCH__ < 7
tmp_idx = ctx.idx;
build_epilogue(&ctx);
@@ -1021,64 +1880,83 @@ void bpf_jit_compile(struct bpf_prog *fp)
ctx.idx += ctx.imm_count;
if (ctx.imm_count) {
- ctx.imms = kzalloc(4 * ctx.imm_count, GFP_KERNEL);
- if (ctx.imms == NULL)
- goto out;
+ ctx.imms = kcalloc(ctx.imm_count, sizeof(u32), GFP_KERNEL);
+ if (ctx.imms == NULL) {
+ prog = orig_prog;
+ goto out_off;
+ }
}
#else
- /* there's nothing after the epilogue on ARMv7 */
+ /* there's nothing about the epilogue on ARMv7 */
build_epilogue(&ctx);
#endif
- alloc_size = 4 * ctx.idx;
- header = bpf_jit_binary_alloc(alloc_size, &target_ptr,
- 4, jit_fill_hole);
- if (header == NULL)
- goto out;
+ /* Now we can get the actual image size of the JITed arm code.
+ * Currently, we are not considering the THUMB-2 instructions
+ * for jit, although it can decrease the size of the image.
+ *
+ * As each arm instruction is of length 32bit, we are translating
+ * number of JITed intructions into the size required to store these
+ * JITed code.
+ */
+ image_size = sizeof(u32) * ctx.idx;
- ctx.target = (u32 *) target_ptr;
+ /* Now we know the size of the structure to make */
+ header = bpf_jit_binary_alloc(image_size, &image_ptr,
+ sizeof(u32), jit_fill_hole);
+ /* Not able to allocate memory for the structure then
+ * we must fall back to the interpretation
+ */
+ if (header == NULL) {
+ prog = orig_prog;
+ goto out_imms;
+ }
+
+ /* 2.) Actual pass to generate final JIT code */
+ ctx.target = (u32 *) image_ptr;
ctx.idx = 0;
build_prologue(&ctx);
+
+ /* If building the body of the JITed code fails somehow,
+ * we fall back to the interpretation.
+ */
if (build_body(&ctx) < 0) {
-#if __LINUX_ARM_ARCH__ < 7
- if (ctx.imm_count)
- kfree(ctx.imms);
-#endif
+ image_ptr = NULL;
bpf_jit_binary_free(header);
- goto out;
+ prog = orig_prog;
+ goto out_imms;
}
build_epilogue(&ctx);
+ /* 3.) Extra pass to validate JITed Code */
+ if (validate_code(&ctx)) {
+ image_ptr = NULL;
+ bpf_jit_binary_free(header);
+ prog = orig_prog;
+ goto out_imms;
+ }
flush_icache_range((u32)header, (u32)(ctx.target + ctx.idx));
-#if __LINUX_ARM_ARCH__ < 7
- if (ctx.imm_count)
- kfree(ctx.imms);
-#endif
-
if (bpf_jit_enable > 1)
/* there are 2 passes here */
- bpf_jit_dump(fp->len, alloc_size, 2, ctx.target);
+ bpf_jit_dump(prog->len, image_size, 2, ctx.target);
set_memory_ro((unsigned long)header, header->pages);
- fp->bpf_func = (void *)ctx.target;
- fp->jited = 1;
-out:
+ prog->bpf_func = (void *)ctx.target;
+ prog->jited = 1;
+ prog->jited_len = image_size;
+
+out_imms:
+#if __LINUX_ARM_ARCH__ < 7
+ if (ctx.imm_count)
+ kfree(ctx.imms);
+#endif
+out_off:
kfree(ctx.offsets);
- return;
+out:
+ if (tmp_blinded)
+ bpf_jit_prog_release_other(prog, prog == orig_prog ?
+ tmp : orig_prog);
+ return prog;
}
-void bpf_jit_free(struct bpf_prog *fp)
-{
- unsigned long addr = (unsigned long)fp->bpf_func & PAGE_MASK;
- struct bpf_binary_header *header = (void *)addr;
-
- if (!fp->jited)
- goto free_filter;
-
- set_memory_rw(addr, header->pages);
- bpf_jit_binary_free(header);
-
-free_filter:
- bpf_prog_unlock_free(fp);
-}
diff --git a/arch/arm/net/bpf_jit_32.h b/arch/arm/net/bpf_jit_32.h
index c46fca2972f7..d5cf5f6208aa 100644
--- a/arch/arm/net/bpf_jit_32.h
+++ b/arch/arm/net/bpf_jit_32.h
@@ -11,6 +11,7 @@
#ifndef PFILTER_OPCODES_ARM_H
#define PFILTER_OPCODES_ARM_H
+/* ARM 32bit Registers */
#define ARM_R0 0
#define ARM_R1 1
#define ARM_R2 2
@@ -22,38 +23,43 @@
#define ARM_R8 8
#define ARM_R9 9
#define ARM_R10 10
-#define ARM_FP 11
-#define ARM_IP 12
-#define ARM_SP 13
-#define ARM_LR 14
-#define ARM_PC 15
-
-#define ARM_COND_EQ 0x0
-#define ARM_COND_NE 0x1
-#define ARM_COND_CS 0x2
+#define ARM_FP 11 /* Frame Pointer */
+#define ARM_IP 12 /* Intra-procedure scratch register */
+#define ARM_SP 13 /* Stack pointer: as load/store base reg */
+#define ARM_LR 14 /* Link Register */
+#define ARM_PC 15 /* Program counter */
+
+#define ARM_COND_EQ 0x0 /* == */
+#define ARM_COND_NE 0x1 /* != */
+#define ARM_COND_CS 0x2 /* unsigned >= */
#define ARM_COND_HS ARM_COND_CS
-#define ARM_COND_CC 0x3
+#define ARM_COND_CC 0x3 /* unsigned < */
#define ARM_COND_LO ARM_COND_CC
-#define ARM_COND_MI 0x4
-#define ARM_COND_PL 0x5
-#define ARM_COND_VS 0x6
-#define ARM_COND_VC 0x7
-#define ARM_COND_HI 0x8
-#define ARM_COND_LS 0x9
-#define ARM_COND_GE 0xa
-#define ARM_COND_LT 0xb
-#define ARM_COND_GT 0xc
-#define ARM_COND_LE 0xd
-#define ARM_COND_AL 0xe
+#define ARM_COND_MI 0x4 /* < 0 */
+#define ARM_COND_PL 0x5 /* >= 0 */
+#define ARM_COND_VS 0x6 /* Signed Overflow */
+#define ARM_COND_VC 0x7 /* No Signed Overflow */
+#define ARM_COND_HI 0x8 /* unsigned > */
+#define ARM_COND_LS 0x9 /* unsigned <= */
+#define ARM_COND_GE 0xa /* Signed >= */
+#define ARM_COND_LT 0xb /* Signed < */
+#define ARM_COND_GT 0xc /* Signed > */
+#define ARM_COND_LE 0xd /* Signed <= */
+#define ARM_COND_AL 0xe /* None */
/* register shift types */
#define SRTYPE_LSL 0
#define SRTYPE_LSR 1
#define SRTYPE_ASR 2
#define SRTYPE_ROR 3
+#define SRTYPE_ASL (SRTYPE_LSL)
#define ARM_INST_ADD_R 0x00800000
+#define ARM_INST_ADDS_R 0x00900000
+#define ARM_INST_ADC_R 0x00a00000
+#define ARM_INST_ADC_I 0x02a00000
#define ARM_INST_ADD_I 0x02800000
+#define ARM_INST_ADDS_I 0x02900000
#define ARM_INST_AND_R 0x00000000
#define ARM_INST_AND_I 0x02000000
@@ -76,8 +82,10 @@
#define ARM_INST_LDRH_I 0x01d000b0
#define ARM_INST_LDRH_R 0x019000b0
#define ARM_INST_LDR_I 0x05900000
+#define ARM_INST_LDR_R 0x07900000
#define ARM_INST_LDM 0x08900000
+#define ARM_INST_LDM_IA 0x08b00000
#define ARM_INST_LSL_I 0x01a00000
#define ARM_INST_LSL_R 0x01a00010
@@ -86,6 +94,7 @@
#define ARM_INST_LSR_R 0x01a00030
#define ARM_INST_MOV_R 0x01a00000
+#define ARM_INST_MOVS_R 0x01b00000
#define ARM_INST_MOV_I 0x03a00000
#define ARM_INST_MOVW 0x03000000
#define ARM_INST_MOVT 0x03400000
@@ -96,17 +105,28 @@
#define ARM_INST_PUSH 0x092d0000
#define ARM_INST_ORR_R 0x01800000
+#define ARM_INST_ORRS_R 0x01900000
#define ARM_INST_ORR_I 0x03800000
#define ARM_INST_REV 0x06bf0f30
#define ARM_INST_REV16 0x06bf0fb0
#define ARM_INST_RSB_I 0x02600000
+#define ARM_INST_RSBS_I 0x02700000
+#define ARM_INST_RSC_I 0x02e00000
#define ARM_INST_SUB_R 0x00400000
+#define ARM_INST_SUBS_R 0x00500000
+#define ARM_INST_RSB_R 0x00600000
#define ARM_INST_SUB_I 0x02400000
+#define ARM_INST_SUBS_I 0x02500000
+#define ARM_INST_SBC_I 0x02c00000
+#define ARM_INST_SBC_R 0x00c00000
+#define ARM_INST_SBCS_R 0x00d00000
#define ARM_INST_STR_I 0x05800000
+#define ARM_INST_STRB_I 0x05c00000
+#define ARM_INST_STRH_I 0x01c000b0
#define ARM_INST_TST_R 0x01100000
#define ARM_INST_TST_I 0x03100000
@@ -117,6 +137,8 @@
#define ARM_INST_MLS 0x00600090
+#define ARM_INST_UXTH 0x06ff0070
+
/*
* Use a suitable undefined instruction to use for ARM/Thumb2 faulting.
* We need to be careful not to conflict with those used by other modules
@@ -135,9 +157,15 @@
#define _AL3_R(op, rd, rn, rm) ((op ## _R) | (rd) << 12 | (rn) << 16 | (rm))
/* immediate */
#define _AL3_I(op, rd, rn, imm) ((op ## _I) | (rd) << 12 | (rn) << 16 | (imm))
+/* register with register-shift */
+#define _AL3_SR(inst) (inst | (1 << 4))
#define ARM_ADD_R(rd, rn, rm) _AL3_R(ARM_INST_ADD, rd, rn, rm)
+#define ARM_ADDS_R(rd, rn, rm) _AL3_R(ARM_INST_ADDS, rd, rn, rm)
#define ARM_ADD_I(rd, rn, imm) _AL3_I(ARM_INST_ADD, rd, rn, imm)
+#define ARM_ADDS_I(rd, rn, imm) _AL3_I(ARM_INST_ADDS, rd, rn, imm)
+#define ARM_ADC_R(rd, rn, rm) _AL3_R(ARM_INST_ADC, rd, rn, rm)
+#define ARM_ADC_I(rd, rn, imm) _AL3_I(ARM_INST_ADC, rd, rn, imm)
#define ARM_AND_R(rd, rn, rm) _AL3_R(ARM_INST_AND, rd, rn, rm)
#define ARM_AND_I(rd, rn, imm) _AL3_I(ARM_INST_AND, rd, rn, imm)
@@ -156,7 +184,9 @@
#define ARM_EOR_I(rd, rn, imm) _AL3_I(ARM_INST_EOR, rd, rn, imm)
#define ARM_LDR_I(rt, rn, off) (ARM_INST_LDR_I | (rt) << 12 | (rn) << 16 \
- | (off))
+ | ((off) & 0xfff))
+#define ARM_LDR_R(rt, rn, rm) (ARM_INST_LDR_R | (rt) << 12 | (rn) << 16 \
+ | (rm))
#define ARM_LDRB_I(rt, rn, off) (ARM_INST_LDRB_I | (rt) << 12 | (rn) << 16 \
| (off))
#define ARM_LDRB_R(rt, rn, rm) (ARM_INST_LDRB_R | (rt) << 12 | (rn) << 16 \
@@ -167,15 +197,23 @@
| (rm))
#define ARM_LDM(rn, regs) (ARM_INST_LDM | (rn) << 16 | (regs))
+#define ARM_LDM_IA(rn, regs) (ARM_INST_LDM_IA | (rn) << 16 | (regs))
#define ARM_LSL_R(rd, rn, rm) (_AL3_R(ARM_INST_LSL, rd, 0, rn) | (rm) << 8)
#define ARM_LSL_I(rd, rn, imm) (_AL3_I(ARM_INST_LSL, rd, 0, rn) | (imm) << 7)
#define ARM_LSR_R(rd, rn, rm) (_AL3_R(ARM_INST_LSR, rd, 0, rn) | (rm) << 8)
#define ARM_LSR_I(rd, rn, imm) (_AL3_I(ARM_INST_LSR, rd, 0, rn) | (imm) << 7)
+#define ARM_ASR_R(rd, rn, rm) (_AL3_R(ARM_INST_ASR, rd, 0, rn) | (rm) << 8)
+#define ARM_ASR_I(rd, rn, imm) (_AL3_I(ARM_INST_ASR, rd, 0, rn) | (imm) << 7)
#define ARM_MOV_R(rd, rm) _AL3_R(ARM_INST_MOV, rd, 0, rm)
+#define ARM_MOVS_R(rd, rm) _AL3_R(ARM_INST_MOVS, rd, 0, rm)
#define ARM_MOV_I(rd, imm) _AL3_I(ARM_INST_MOV, rd, 0, imm)
+#define ARM_MOV_SR(rd, rm, type, rs) \
+ (_AL3_SR(ARM_MOV_R(rd, rm)) | (type) << 5 | (rs) << 8)
+#define ARM_MOV_SI(rd, rm, type, imm6) \
+ (ARM_MOV_R(rd, rm) | (type) << 5 | (imm6) << 7)
#define ARM_MOVW(rd, imm) \
(ARM_INST_MOVW | ((imm) >> 12) << 16 | (rd) << 12 | ((imm) & 0x0fff))
@@ -190,19 +228,38 @@
#define ARM_ORR_R(rd, rn, rm) _AL3_R(ARM_INST_ORR, rd, rn, rm)
#define ARM_ORR_I(rd, rn, imm) _AL3_I(ARM_INST_ORR, rd, rn, imm)
-#define ARM_ORR_S(rd, rn, rm, type, rs) \
- (ARM_ORR_R(rd, rn, rm) | (type) << 5 | (rs) << 7)
+#define ARM_ORR_SR(rd, rn, rm, type, rs) \
+ (_AL3_SR(ARM_ORR_R(rd, rn, rm)) | (type) << 5 | (rs) << 8)
+#define ARM_ORRS_R(rd, rn, rm) _AL3_R(ARM_INST_ORRS, rd, rn, rm)
+#define ARM_ORRS_SR(rd, rn, rm, type, rs) \
+ (_AL3_SR(ARM_ORRS_R(rd, rn, rm)) | (type) << 5 | (rs) << 8)
+#define ARM_ORR_SI(rd, rn, rm, type, imm6) \
+ (ARM_ORR_R(rd, rn, rm) | (type) << 5 | (imm6) << 7)
+#define ARM_ORRS_SI(rd, rn, rm, type, imm6) \
+ (ARM_ORRS_R(rd, rn, rm) | (type) << 5 | (imm6) << 7)
#define ARM_REV(rd, rm) (ARM_INST_REV | (rd) << 12 | (rm))
#define ARM_REV16(rd, rm) (ARM_INST_REV16 | (rd) << 12 | (rm))
#define ARM_RSB_I(rd, rn, imm) _AL3_I(ARM_INST_RSB, rd, rn, imm)
+#define ARM_RSBS_I(rd, rn, imm) _AL3_I(ARM_INST_RSBS, rd, rn, imm)
+#define ARM_RSC_I(rd, rn, imm) _AL3_I(ARM_INST_RSC, rd, rn, imm)
#define ARM_SUB_R(rd, rn, rm) _AL3_R(ARM_INST_SUB, rd, rn, rm)
+#define ARM_SUBS_R(rd, rn, rm) _AL3_R(ARM_INST_SUBS, rd, rn, rm)
+#define ARM_RSB_R(rd, rn, rm) _AL3_R(ARM_INST_RSB, rd, rn, rm)
+#define ARM_SBC_R(rd, rn, rm) _AL3_R(ARM_INST_SBC, rd, rn, rm)
+#define ARM_SBCS_R(rd, rn, rm) _AL3_R(ARM_INST_SBCS, rd, rn, rm)
#define ARM_SUB_I(rd, rn, imm) _AL3_I(ARM_INST_SUB, rd, rn, imm)
+#define ARM_SUBS_I(rd, rn, imm) _AL3_I(ARM_INST_SUBS, rd, rn, imm)
+#define ARM_SBC_I(rd, rn, imm) _AL3_I(ARM_INST_SBC, rd, rn, imm)
#define ARM_STR_I(rt, rn, off) (ARM_INST_STR_I | (rt) << 12 | (rn) << 16 \
- | (off))
+ | ((off) & 0xfff))
+#define ARM_STRH_I(rt, rn, off) (ARM_INST_STRH_I | (rt) << 12 | (rn) << 16 \
+ | (((off) & 0xf0) << 4) | ((off) & 0xf))
+#define ARM_STRB_I(rt, rn, off) (ARM_INST_STRB_I | (rt) << 12 | (rn) << 16 \
+ | (((off) & 0xf0) << 4) | ((off) & 0xf))
#define ARM_TST_R(rn, rm) _AL3_R(ARM_INST_TST, 0, rn, rm)
#define ARM_TST_I(rn, imm) _AL3_I(ARM_INST_TST, 0, rn, imm)
@@ -214,5 +271,6 @@
#define ARM_MLS(rd, rn, rm, ra) (ARM_INST_MLS | (rd) << 16 | (rn) | (rm) << 8 \
| (ra) << 12)
+#define ARM_UXTH(rd, rm) (ARM_INST_UXTH | (rd) << 12 | (rm))
#endif /* PFILTER_OPCODES_ARM_H */
diff --git a/arch/arm/plat-samsung/include/plat/map-s3c.h b/arch/arm/plat-samsung/include/plat/map-s3c.h
index 6feedd47d875..33104911862e 100644
--- a/arch/arm/plat-samsung/include/plat/map-s3c.h
+++ b/arch/arm/plat-samsung/include/plat/map-s3c.h
@@ -61,7 +61,7 @@
/* deal with the registers that move under the 2412/2413 */
-#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413)
+#if defined(CONFIG_CPU_S3C2412)
#ifndef __ASSEMBLY__
extern void __iomem *s3c24xx_va_gpio2;
#endif
diff --git a/arch/arm/probes/kprobes/core.c b/arch/arm/probes/kprobes/core.c
index ad1f4e6a9e33..52d1cd14fda4 100644
--- a/arch/arm/probes/kprobes/core.c
+++ b/arch/arm/probes/kprobes/core.c
@@ -182,7 +182,8 @@ void __kprobes kprobes_remove_breakpoint(void *addr, unsigned int insn)
.addr = addr,
.insn = insn,
};
- stop_machine(__kprobes_remove_breakpoint, &p, cpu_online_mask);
+ stop_machine_cpuslocked(__kprobes_remove_breakpoint, &p,
+ cpu_online_mask);
}
void __kprobes arch_disarm_kprobe(struct kprobe *p)
diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index f0325d96b97a..785d2a562a23 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -185,23 +185,6 @@ EXPORT_SYMBOL_GPL(xen_destroy_contiguous_region);
const struct dma_map_ops *xen_dma_ops;
EXPORT_SYMBOL(xen_dma_ops);
-static const struct dma_map_ops xen_swiotlb_dma_ops = {
- .alloc = xen_swiotlb_alloc_coherent,
- .free = xen_swiotlb_free_coherent,
- .sync_single_for_cpu = xen_swiotlb_sync_single_for_cpu,
- .sync_single_for_device = xen_swiotlb_sync_single_for_device,
- .sync_sg_for_cpu = xen_swiotlb_sync_sg_for_cpu,
- .sync_sg_for_device = xen_swiotlb_sync_sg_for_device,
- .map_sg = xen_swiotlb_map_sg_attrs,
- .unmap_sg = xen_swiotlb_unmap_sg_attrs,
- .map_page = xen_swiotlb_map_page,
- .unmap_page = xen_swiotlb_unmap_page,
- .dma_supported = xen_swiotlb_dma_supported,
- .set_dma_mask = xen_swiotlb_set_dma_mask,
- .mmap = xen_swiotlb_dma_mmap,
- .get_sgtable = xen_swiotlb_get_sgtable,
-};
-
int __init xen_mm_init(void)
{
struct gnttab_cache_flush cflush;
diff --git a/arch/arm/xen/p2m.c b/arch/arm/xen/p2m.c
index 0ed01f2d5ee4..e71eefa2e427 100644
--- a/arch/arm/xen/p2m.c
+++ b/arch/arm/xen/p2m.c
@@ -144,17 +144,17 @@ bool __set_phys_to_machine_multi(unsigned long pfn,
return true;
}
- p2m_entry = kzalloc(sizeof(struct xen_p2m_entry), GFP_NOWAIT);
- if (!p2m_entry) {
- pr_warn("cannot allocate xen_p2m_entry\n");
+ p2m_entry = kzalloc(sizeof(*p2m_entry), GFP_NOWAIT);
+ if (!p2m_entry)
return false;
- }
+
p2m_entry->pfn = pfn;
p2m_entry->nr_pages = nr_pages;
p2m_entry->mfn = mfn;
write_lock_irqsave(&p2m_lock, irqflags);
- if ((rc = xen_add_phys_to_mach_entry(p2m_entry)) < 0) {
+ rc = xen_add_phys_to_mach_entry(p2m_entry);
+ if (rc < 0) {
write_unlock_irqrestore(&p2m_lock, irqflags);
return false;
}
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index b2024db225a9..0df64a6a56d4 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -3,6 +3,7 @@ config ARM64
select ACPI_CCA_REQUIRED if ACPI
select ACPI_GENERIC_GSI if ACPI
select ACPI_GTDT if ACPI
+ select ACPI_IORT if ACPI
select ACPI_REDUCED_HARDWARE_ONLY if ACPI
select ACPI_MCFG if ACPI
select ACPI_SPCR_TABLE if ACPI
@@ -11,15 +12,18 @@ config ARM64
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
select ARCH_HAS_ELF_RANDOMIZE
+ select ARCH_HAS_FORTIFY_SOURCE
select ARCH_HAS_GCOV_PROFILE_ALL
- select ARCH_HAS_GIGANTIC_PAGE
+ select ARCH_HAS_GIGANTIC_PAGE if (MEMORY_ISOLATION && COMPACTION) || CMA
select ARCH_HAS_KCOV
select ARCH_HAS_SET_MEMORY
select ARCH_HAS_SG_CHAIN
select ARCH_HAS_STRICT_KERNEL_RWX
select ARCH_HAS_STRICT_MODULE_RWX
select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
+ select ARCH_HAVE_NMI_SAFE_CMPXCHG if ACPI_APEI_SEA
select ARCH_USE_CMPXCHG_LOCKREF
+ select ARCH_SUPPORTS_MEMORY_FAILURE
select ARCH_SUPPORTS_ATOMIC_RMW
select ARCH_SUPPORTS_NUMA_BALANCING
select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
@@ -41,6 +45,7 @@ config ARM64
select EDAC_SUPPORT
select FRAME_POINTER
select GENERIC_ALLOCATOR
+ select GENERIC_ARCH_TOPOLOGY
select GENERIC_CLOCKEVENTS
select GENERIC_CLOCKEVENTS_BROADCAST
select GENERIC_CPU_AUTOPROBE
@@ -70,6 +75,7 @@ config ARM64
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ARCH_TRACEHOOK
select HAVE_ARCH_TRANSPARENT_HUGEPAGE
+ select HAVE_ARCH_VMAP_STACK
select HAVE_ARM_SMCCC
select HAVE_EBPF_JIT
select HAVE_C_RECORDMCOUNT
@@ -92,6 +98,7 @@ config ARM64
select HAVE_IRQ_TIME_ACCOUNTING
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP if NUMA
+ select HAVE_NMI if ACPI_APEI_SEA
select HAVE_PATA_PLATFORM
select HAVE_PERF_EVENTS
select HAVE_PERF_REGS
@@ -205,7 +212,7 @@ config GENERIC_CALIBRATE_DELAY
config ZONE_DMA
def_bool y
-config HAVE_GENERIC_RCU_GUP
+config HAVE_GENERIC_GUP
def_bool y
config ARCH_DMA_ADDR_T_64BIT
@@ -244,6 +251,9 @@ config PGTABLE_LEVELS
config ARCH_SUPPORTS_UPROBES
def_bool y
+config ARCH_PROC_KCORE_TEXT
+ def_bool y
+
source "init/Kconfig"
source "kernel/Kconfig.freezer"
@@ -480,6 +490,17 @@ config CAVIUM_ERRATUM_27456
If unsure, say Y.
+config CAVIUM_ERRATUM_30115
+ bool "Cavium erratum 30115: Guest may disable interrupts in host"
+ default y
+ help
+ On ThunderX T88 pass 1.x through 2.2, T81 pass 1.0 through
+ 1.2, and T83 Pass 1.0, KVM guest execution may disable
+ interrupts in host. Trapping both GICv3 group-0 and group-1
+ accesses sidesteps the issue.
+
+ If unsure, say Y.
+
config QCOM_FALKOR_ERRATUM_1003
bool "Falkor E1003: Incorrect translation due to ASID change"
default y
@@ -940,6 +961,18 @@ config ARM64_UAO
regular load/store instructions if the cpu does not implement the
feature.
+config ARM64_PMEM
+ bool "Enable support for persistent memory"
+ select ARCH_HAS_PMEM_API
+ select ARCH_HAS_UACCESS_FLUSHCACHE
+ help
+ Say Y to enable support for the persistent memory API based on the
+ ARMv8.2 DCPoP feature.
+
+ The feature is detected at runtime, and the kernel will use DC CVAC
+ operations if DC CVAP is not supported (following the behaviour of
+ DC CVAP itself if the system does not define a point of persistence).
+
endmenu
config ARM64_MODULE_CMODEL_LARGE
@@ -982,7 +1015,7 @@ config RANDOMIZE_BASE
config RANDOMIZE_MODULE_REGION_FULL
bool "Randomize the module region independently from the core kernel"
- depends on RANDOMIZE_BASE && !DYNAMIC_FTRACE
+ depends on RANDOMIZE_BASE
default y
help
Randomizes the location of the module region without considering the
diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index 73272f43ca01..6b54ee8c1262 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -1,5 +1,11 @@
menu "Platform selection"
+config ARCH_ACTIONS
+ bool "Actions Semi Platforms"
+ select OWL_TIMER
+ help
+ This enables support for the Actions Semiconductor S900 SoC family.
+
config ARCH_SUNXI
bool "Allwinner sunxi 64-bit SoC Family"
select ARCH_HAS_RESET_CONTROLLER
@@ -18,7 +24,7 @@ config ARCH_ALPINE
config ARCH_BCM2835
bool "Broadcom BCM2835 family"
- select CLKSRC_OF
+ select TIMER_OF
select GPIOLIB
select PINCTRL
select PINCTRL_BCM2835
@@ -108,11 +114,15 @@ config ARCH_MVEBU
select ARMADA_37XX_CLK
select GPIOLIB
select GPIOLIB_IRQCHIP
+ select MVEBU_GICP
+ select MVEBU_ICU
select MVEBU_ODMI
select MVEBU_PIC
select OF_GPIO
select PINCTRL
select PINCTRL_ARMADA_37XX
+ select PINCTRL_ARMADA_AP806
+ select PINCTRL_ARMADA_CP110
help
This enables support for Marvell EBU familly, including:
- Armada 3700 SoC Family
@@ -126,6 +136,12 @@ config ARCH_QCOM
help
This enables support for the ARMv8 based Qualcomm chipsets.
+config ARCH_REALTEK
+ bool "Realtek Platforms"
+ help
+ This enables support for the ARMv8 based Realtek chipsets,
+ like the RTD1295.
+
config ARCH_ROCKCHIP
bool "Rockchip Platforms"
select ARCH_HAS_RESET_CONTROLLER
@@ -168,6 +184,12 @@ config ARCH_R8A7796
help
This enables support for the Renesas R-Car M3-W SoC.
+config ARCH_R8A77995
+ bool "Renesas R-Car D3 SoC Platform"
+ depends on ARCH_RENESAS
+ help
+ This enables support for the Renesas R-Car D3 SoC.
+
config ARCH_STRATIX10
bool "Altera's Stratix 10 SoCFPGA Family"
help
@@ -178,7 +200,7 @@ config ARCH_TEGRA
select ARCH_HAS_RESET_CONTROLLER
select CLKDEV_LOOKUP
select CLKSRC_MMIO
- select CLKSRC_OF
+ select TIMER_OF
select GENERIC_CLOCKEVENTS
select GPIOLIB
select PINCTRL
@@ -225,10 +247,7 @@ config ARCH_VEXPRESS
Express).
config ARCH_VULCAN
- bool "Broadcom Vulcan SOC Family"
- select GPIOLIB
- help
- This enables support for Broadcom Vulcan SoC Family
+ def_bool n
config ARCH_XGENE
bool "AppliedMicro X-Gene SOC Family"
@@ -237,6 +256,7 @@ config ARCH_XGENE
config ARCH_ZX
bool "ZTE ZX SoC Family"
+ select PINCTRL
help
This enables support for ZTE ZX SoC Family
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index f839ecd919f9..939b310913cf 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -50,19 +50,26 @@ KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
KBUILD_CFLAGS += $(call cc-option, -mpc-relative-literal-loads)
KBUILD_AFLAGS += $(lseinstr) $(brokengasinst)
+KBUILD_CFLAGS += $(call cc-option,-mabi=lp64)
+KBUILD_AFLAGS += $(call cc-option,-mabi=lp64)
+
ifeq ($(CONFIG_CPU_BIG_ENDIAN), y)
KBUILD_CPPFLAGS += -mbig-endian
+CHECKFLAGS += -D__AARCH64EB__
AS += -EB
LD += -EB
+LDFLAGS += -maarch64linuxb
UTS_MACHINE := aarch64_be
else
KBUILD_CPPFLAGS += -mlittle-endian
+CHECKFLAGS += -D__AARCH64EL__
AS += -EL
LD += -EL
+LDFLAGS += -maarch64linux
UTS_MACHINE := aarch64
endif
-CHECKFLAGS += -D__aarch64__
+CHECKFLAGS += -D__aarch64__ -m64
ifeq ($(CONFIG_ARM64_MODULE_CMODEL_LARGE), y)
KBUILD_CFLAGS_MODULE += -mcmodel=large
@@ -70,6 +77,9 @@ endif
ifeq ($(CONFIG_ARM64_MODULE_PLTS),y)
KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/arm64/kernel/module.lds
+ifeq ($(CONFIG_DYNAMIC_FTRACE),y)
+KBUILD_LDFLAGS_MODULE += $(objtree)/arch/arm64/kernel/ftrace-mod.o
+endif
endif
# Default value
diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
index 080232b0270e..8e1951273fd7 100644
--- a/arch/arm64/boot/dts/Makefile
+++ b/arch/arm64/boot/dts/Makefile
@@ -1,3 +1,4 @@
+dts-dirs += actions
dts-dirs += al
dts-dirs += allwinner
dts-dirs += altera
@@ -14,6 +15,7 @@ dts-dirs += marvell
dts-dirs += mediatek
dts-dirs += nvidia
dts-dirs += qcom
+dts-dirs += realtek
dts-dirs += renesas
dts-dirs += rockchip
dts-dirs += socionext
diff --git a/arch/arm64/boot/dts/actions/Makefile b/arch/arm64/boot/dts/actions/Makefile
new file mode 100644
index 000000000000..62922d688ce3
--- /dev/null
+++ b/arch/arm64/boot/dts/actions/Makefile
@@ -0,0 +1,5 @@
+dtb-$(CONFIG_ARCH_ACTIONS) += s900-bubblegum-96.dtb
+
+always := $(dtb-y)
+subdir-y := $(dts-dirs)
+clean-files := *.dtb
diff --git a/arch/arm64/boot/dts/actions/s900-bubblegum-96.dts b/arch/arm64/boot/dts/actions/s900-bubblegum-96.dts
new file mode 100644
index 000000000000..a0c3484dbd12
--- /dev/null
+++ b/arch/arm64/boot/dts/actions/s900-bubblegum-96.dts
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2017 Andreas Färber
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+/dts-v1/;
+
+#include "s900.dtsi"
+
+/ {
+ compatible = "ucrobotics,bubblegum-96", "actions,s900";
+ model = "Bubblegum-96";
+
+ aliases {
+ serial5 = &uart5;
+ };
+
+ chosen {
+ stdout-path = "serial5:115200n8";
+ };
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x0 0x0 0x80000000>;
+ };
+};
+
+&timer {
+ clocks = <&hosc>;
+};
+
+&uart5 {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/actions/s900.dtsi b/arch/arm64/boot/dts/actions/s900.dtsi
new file mode 100644
index 000000000000..11406f6d3a6d
--- /dev/null
+++ b/arch/arm64/boot/dts/actions/s900.dtsi
@@ -0,0 +1,164 @@
+/*
+ * Copyright (c) 2017 Andreas Färber
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ compatible = "actions,s900";
+ interrupt-parent = <&gic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ cpus {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0 0x0>;
+ enable-method = "psci";
+ };
+
+ cpu1: cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0 0x1>;
+ enable-method = "psci";
+ };
+
+ cpu2: cpu@2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0 0x2>;
+ enable-method = "psci";
+ };
+
+ cpu3: cpu@3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0 0x3>;
+ enable-method = "psci";
+ };
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ secmon@1f000000 {
+ reg = <0x0 0x1f000000 0x0 0x1000000>;
+ no-map;
+ };
+ };
+
+ psci {
+ compatible = "arm,psci-0.2";
+ method = "smc";
+ };
+
+ arm-pmu {
+ compatible = "arm,cortex-a53-pmu";
+ interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 13
+ (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 14
+ (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 11
+ (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 10
+ (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+ };
+
+ hosc: hosc {
+ compatible = "fixed-clock";
+ clock-frequency = <24000000>;
+ #clock-cells = <0>;
+ };
+
+ soc {
+ compatible = "simple-bus";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ gic: interrupt-controller@e00f1000 {
+ compatible = "arm,gic-400";
+ reg = <0x0 0xe00f1000 0x0 0x1000>,
+ <0x0 0xe00f2000 0x0 0x2000>,
+ <0x0 0xe00f4000 0x0 0x2000>,
+ <0x0 0xe00f6000 0x0 0x2000>;
+ interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ };
+
+ uart0: serial@e0120000 {
+ compatible = "actions,s900-uart", "actions,owl-uart";
+ reg = <0x0 0xe0120000 0x0 0x2000>;
+ interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ uart1: serial@e0122000 {
+ compatible = "actions,s900-uart", "actions,owl-uart";
+ reg = <0x0 0xe0122000 0x0 0x2000>;
+ interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ uart2: serial@e0124000 {
+ compatible = "actions,s900-uart", "actions,owl-uart";
+ reg = <0x0 0xe0124000 0x0 0x2000>;
+ interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ uart3: serial@e0126000 {
+ compatible = "actions,s900-uart", "actions,owl-uart";
+ reg = <0x0 0xe0126000 0x0 0x2000>;
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ uart4: serial@e0128000 {
+ compatible = "actions,s900-uart", "actions,owl-uart";
+ reg = <0x0 0xe0128000 0x0 0x2000>;
+ interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ uart5: serial@e012a000 {
+ compatible = "actions,s900-uart", "actions,owl-uart";
+ reg = <0x0 0xe012a000 0x0 0x2000>;
+ interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ uart6: serial@e012c000 {
+ compatible = "actions,s900-uart", "actions,owl-uart";
+ reg = <0x0 0xe012c000 0x0 0x2000>;
+ interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ timer: timer@e0228000 {
+ compatible = "actions,s900-timer";
+ reg = <0x0 0xe0228000 0x0 0x8000>;
+ interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "timer1";
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/allwinner/Makefile b/arch/arm64/boot/dts/allwinner/Makefile
index 244e8b7565f9..19c3fbd75eda 100644
--- a/arch/arm64/boot/dts/allwinner/Makefile
+++ b/arch/arm64/boot/dts/allwinner/Makefile
@@ -1,6 +1,13 @@
dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-bananapi-m64.dtb
+dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-nanopi-a64.dtb
+dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-olinuxino.dtb
+dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-orangepi-win.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-pine64-plus.dtb sun50i-a64-pine64.dtb
+dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-sopine-baseboard.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-orangepi-pc2.dtb
+dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-orangepi-prime.dtb
+dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-orangepi-zero-plus2.dtb
+dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-nanopi-neo2.dtb
always := $(dtb-y)
subdir-y := $(dts-dirs)
diff --git a/arch/arm64/boot/dts/allwinner/axp803.dtsi b/arch/arm64/boot/dts/allwinner/axp803.dtsi
new file mode 100644
index 000000000000..ff8af52743ff
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/axp803.dtsi
@@ -0,0 +1,150 @@
+/*
+ * Copyright 2017 Icenowy Zheng <icenowy@aosc.xyz>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * AXP803 Integrated Power Management Chip
+ * http://files.pine64.org/doc/datasheet/pine64/AXP803_Datasheet_V1.0.pdf
+ */
+
+&axp803 {
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ regulators {
+ /* Default work frequency for buck regulators */
+ x-powers,dcdc-freq = <3000>;
+
+ reg_aldo1: aldo1 {
+ regulator-name = "aldo1";
+ };
+
+ reg_aldo2: aldo2 {
+ regulator-name = "aldo2";
+ };
+
+ reg_aldo3: aldo3 {
+ regulator-name = "aldo3";
+ };
+
+ reg_dc1sw: dc1sw {
+ regulator-name = "dc1sw";
+ };
+
+ reg_dcdc1: dcdc1 {
+ regulator-name = "dcdc1";
+ };
+
+ reg_dcdc2: dcdc2 {
+ regulator-name = "dcdc2";
+ };
+
+ reg_dcdc3: dcdc3 {
+ regulator-name = "dcdc3";
+ };
+
+ reg_dcdc4: dcdc4 {
+ regulator-name = "dcdc4";
+ };
+
+ reg_dcdc5: dcdc5 {
+ regulator-name = "dcdc5";
+ };
+
+ reg_dcdc6: dcdc6 {
+ regulator-name = "dcdc6";
+ };
+
+ reg_dldo1: dldo1 {
+ regulator-name = "dldo1";
+ };
+
+ reg_dldo2: dldo2 {
+ regulator-name = "dldo2";
+ };
+
+ reg_dldo3: dldo3 {
+ regulator-name = "dldo3";
+ };
+
+ reg_dldo4: dldo4 {
+ regulator-name = "dldo4";
+ };
+
+ reg_eldo1: eldo1 {
+ regulator-name = "eldo1";
+ };
+
+ reg_eldo2: eldo2 {
+ regulator-name = "eldo2";
+ };
+
+ reg_eldo3: eldo3 {
+ regulator-name = "eldo3";
+ };
+
+ reg_fldo1: fldo1 {
+ regulator-name = "fldo1";
+ };
+
+ reg_fldo2: fldo2 {
+ regulator-name = "fldo2";
+ };
+
+ reg_ldo_io0: ldo-io0 {
+ regulator-name = "ldo-io0";
+ status = "disabled";
+ };
+
+ reg_ldo_io1: ldo-io1 {
+ regulator-name = "ldo-io1";
+ status = "disabled";
+ };
+
+ reg_rtc_ldo: rtc-ldo {
+ /* RTC_LDO is a fixed, always-on regulator */
+ regulator-always-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-name = "rtc-ldo";
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts
index 6872135d7f84..d347f52e27f6 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts
@@ -59,14 +59,16 @@
stdout-path = "serial0:115200n8";
};
- reg_vcc3v3: vcc3v3 {
- compatible = "regulator-fixed";
- regulator-name = "vcc3v3";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
+ wifi_pwrseq: wifi_pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 */
};
};
+&ehci1 {
+ status = "okay";
+};
+
&i2c1 {
pinctrl-names = "default";
pinctrl-0 = <&i2c1_pins>;
@@ -80,7 +82,7 @@
&mmc0 {
pinctrl-names = "default";
pinctrl-0 = <&mmc0_pins>;
- vmmc-supply = <&reg_vcc3v3>;
+ vmmc-supply = <&reg_dcdc1>;
cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>;
cd-inverted;
disable-wp;
@@ -91,22 +93,143 @@
&mmc1 {
pinctrl-names = "default";
pinctrl-0 = <&mmc1_pins>;
- vmmc-supply = <&reg_vcc3v3>;
+ vmmc-supply = <&reg_dldo2>;
+ vqmmc-supply = <&reg_dldo4>;
+ mmc-pwrseq = <&wifi_pwrseq>;
bus-width = <4>;
non-removable;
status = "okay";
+
+ brcmf: wifi@1 {
+ reg = <1>;
+ compatible = "brcm,bcm4329-fmac";
+ interrupt-parent = <&r_pio>;
+ interrupts = <0 3 IRQ_TYPE_LEVEL_LOW>; /* PL3 */
+ interrupt-names = "host-wake";
+ };
};
&mmc2 {
pinctrl-names = "default";
pinctrl-0 = <&mmc2_pins>;
- vmmc-supply = <&reg_vcc3v3>;
+ vmmc-supply = <&reg_dcdc1>;
bus-width = <8>;
non-removable;
cap-mmc-hw-reset;
status = "okay";
};
+&ohci1 {
+ status = "okay";
+};
+
+&r_rsb {
+ status = "okay";
+
+ axp803: pmic@3a3 {
+ compatible = "x-powers,axp803";
+ reg = <0x3a3>;
+ interrupt-parent = <&r_intc>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ };
+};
+
+#include "axp803.dtsi"
+
+&reg_aldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-pl";
+};
+
+&reg_aldo3 {
+ regulator-always-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-name = "vcc-pll-avcc";
+};
+
+&reg_dc1sw {
+ regulator-name = "vcc-phy";
+};
+
+&reg_dcdc1 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-3v3";
+};
+
+&reg_dcdc2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1040000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-name = "vdd-cpux";
+};
+
+/* DCDC3 is polyphased with DCDC2 */
+
+&reg_dcdc5 {
+ regulator-always-on;
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-name = "vcc-dram";
+};
+
+&reg_dcdc6 {
+ regulator-always-on;
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-sys";
+};
+
+&reg_dldo1 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-hdmi-dsi";
+};
+
+&reg_dldo2 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-wifi";
+};
+
+&reg_dldo4 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-wifi-io";
+};
+
+&reg_eldo1 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-name = "cpvdd";
+};
+
+&reg_fldo1 {
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-name = "vcc-1v2-hsic";
+};
+
+/*
+ * The A64 chip cannot work without this regulator off, although
+ * it seems to be only driving the AR100 core.
+ * Maybe we don't still know well about CPUs domain.
+ */
+&reg_fldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-cpus";
+};
+
+&reg_rtc_ldo {
+ regulator-name = "vcc-rtc";
+};
+
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins_a>;
@@ -118,3 +241,7 @@
pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
status = "okay";
};
+
+&usbphy {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-nanopi-a64.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-nanopi-a64.dts
new file mode 100644
index 000000000000..2beef9e6cb88
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-nanopi-a64.dts
@@ -0,0 +1,207 @@
+/*
+ * Copyright (C) 2017 Jagan Teki <jteki@openedev.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+
+#include "sun50i-a64.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ model = "FriendlyARM NanoPi A64";
+ compatible = "friendlyarm,nanopi-a64", "allwinner,sun50i-a64";
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+};
+
+&ehci0 {
+ status = "okay";
+};
+
+&ehci1 {
+ status = "okay";
+};
+
+/* i2c1 connected with gpio headers like pine64, bananapi */
+&i2c1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_pins>;
+ status = "disabled";
+};
+
+&i2c1_pins {
+ bias-pull-up;
+};
+
+&mmc0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_pins>;
+ vmmc-supply = <&reg_dcdc1>;
+ cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>;
+ cd-inverted;
+ disable-wp;
+ bus-width = <4>;
+ status = "okay";
+};
+
+&ohci0 {
+ status = "okay";
+};
+
+&ohci1 {
+ status = "okay";
+};
+
+&r_rsb {
+ status = "okay";
+
+ axp803: pmic@3a3 {
+ compatible = "x-powers,axp803";
+ reg = <0x3a3>;
+ interrupt-parent = <&r_intc>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ };
+};
+
+#include "axp803.dtsi"
+
+&reg_aldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-pl";
+};
+
+&reg_aldo3 {
+ regulator-always-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-name = "vcc-pll-avcc";
+};
+
+&reg_dcdc1 {
+ regulator-always-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-name = "vcc-3v";
+};
+
+&reg_dcdc2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1040000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-name = "vdd-cpux";
+};
+
+/* DCDC3 is polyphased with DCDC2 */
+
+&reg_dcdc5 {
+ regulator-always-on;
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-name = "vcc-dram";
+};
+
+&reg_dcdc6 {
+ regulator-always-on;
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-sys";
+};
+
+&reg_dldo1 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-hdmi-dsi";
+};
+
+&reg_dldo4 {
+ regulator-always-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-name = "vcc-pg-wifi-io";
+};
+
+&reg_eldo1 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-name = "cpvdd";
+};
+
+&reg_fldo1 {
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-name = "vcc-1v2-hsic";
+};
+
+/*
+ * The A64 chip cannot work without this regulator off, although
+ * it seems to be only driving the AR100 core.
+ * Maybe we don't still know well about CPUs domain.
+ */
+&reg_fldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-cpus";
+};
+
+&reg_rtc_ldo {
+ regulator-name = "vcc-rtc";
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pins_a>;
+ status = "okay";
+};
+
+&usbphy {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts
new file mode 100644
index 000000000000..338e786155b1
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts
@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2017 Jagan Teki <jteki@openedev.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+
+#include "sun50i-a64.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ model = "Olimex A64-Olinuxino";
+ compatible = "olimex,a64-olinuxino", "allwinner,sun50i-a64";
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+};
+
+&mmc0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_pins>;
+ vmmc-supply = <&reg_dcdc1>;
+ cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>;
+ cd-inverted;
+ disable-wp;
+ bus-width = <4>;
+ status = "okay";
+};
+
+&r_rsb {
+ status = "okay";
+
+ axp803: pmic@3a3 {
+ compatible = "x-powers,axp803";
+ reg = <0x3a3>;
+ interrupt-parent = <&r_intc>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ };
+};
+
+#include "axp803.dtsi"
+
+&reg_aldo1 {
+ regulator-always-on;
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-name = "vcc-pe";
+};
+
+&reg_aldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-pl";
+};
+
+&reg_aldo3 {
+ regulator-always-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-name = "vcc-pll-avcc";
+};
+
+&reg_dcdc1 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-3v3";
+};
+
+&reg_dcdc2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1040000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-name = "vdd-cpux";
+};
+
+/* DCDC3 is polyphased with DCDC2 */
+
+&reg_dcdc5 {
+ regulator-always-on;
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-name = "vcc-ddr3";
+};
+
+&reg_dcdc6 {
+ regulator-always-on;
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-sys";
+};
+
+&reg_dldo1 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-hdmi";
+};
+
+&reg_dldo2 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-mipi";
+};
+
+&reg_dldo3 {
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-name = "vcc-avdd-csi";
+};
+
+&reg_dldo4 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-wifi-io";
+};
+
+&reg_eldo1 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-name = "cpvdd";
+};
+
+&reg_eldo2 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-name = "vcc-dvdd-csi";
+};
+
+&reg_fldo1 {
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-name = "vcc-1v2-hsic";
+};
+
+/*
+ * The A64 chip cannot work without this regulator off, although
+ * it seems to be only driving the AR100 core.
+ * Maybe we don't still know well about CPUs domain.
+ */
+&reg_fldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-cpus";
+};
+
+&reg_rtc_ldo {
+ regulator-name = "vcc-rtc";
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pins_a>;
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-orangepi-win.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-orangepi-win.dts
new file mode 100644
index 000000000000..5f8ff4017d45
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-orangepi-win.dts
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2017 Jagan Teki <jteki@openedev.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+
+#include "sun50i-a64.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ model = "OrangePi Win/Win Plus";
+ compatible = "xunlong,orangepi-win", "allwinner,sun50i-a64";
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ reg_vcc3v3: vcc3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+};
+
+&ehci1 {
+ status = "okay";
+};
+
+&mmc0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_pins>;
+ vmmc-supply = <&reg_vcc3v3>;
+ cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>;
+ cd-inverted;
+ status = "okay";
+};
+
+&ohci1 {
+ status = "okay";
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pins_a>;
+ status = "okay";
+};
+
+&usbphy {
+ status = "okay";
+};
+
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts
index 790d14daaa6a..f82ccf332c0f 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64-plus.dts
@@ -46,5 +46,5 @@
model = "Pine64+";
compatible = "pine64,pine64-plus", "allwinner,sun50i-a64";
- /* TODO: Camera, Ethernet PHY, touchscreen, etc. */
+ /* TODO: Camera, touchscreen, etc. */
};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
index c680ed385da3..d06e34b5d192 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
@@ -52,18 +52,19 @@
aliases {
serial0 = &uart0;
+ serial1 = &uart1;
+ serial2 = &uart2;
+ serial3 = &uart3;
+ serial4 = &uart4;
};
chosen {
stdout-path = "serial0:115200n8";
};
+};
- reg_vcc3v3: vcc3v3 {
- compatible = "regulator-fixed";
- regulator-name = "vcc3v3";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- };
+&ehci0 {
+ status = "okay";
};
&ehci1 {
@@ -83,7 +84,7 @@
&mmc0 {
pinctrl-names = "default";
pinctrl-0 = <&mmc0_pins>;
- vmmc-supply = <&reg_vcc3v3>;
+ vmmc-supply = <&reg_dcdc1>;
cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>;
cd-inverted;
disable-wp;
@@ -91,16 +92,161 @@
status = "okay";
};
+&ohci0 {
+ status = "okay";
+};
+
&ohci1 {
status = "okay";
};
+&r_rsb {
+ status = "okay";
+
+ axp803: pmic@3a3 {
+ compatible = "x-powers,axp803";
+ reg = <0x3a3>;
+ interrupt-parent = <&r_intc>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ };
+};
+
+#include "axp803.dtsi"
+
+&reg_aldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-pl";
+};
+
+&reg_aldo3 {
+ regulator-always-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-name = "vcc-pll-avcc";
+};
+
+&reg_dc1sw {
+ regulator-name = "vcc-phy";
+};
+
+&reg_dcdc1 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-3v3";
+};
+
+&reg_dcdc2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1040000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-name = "vdd-cpux";
+};
+
+/* DCDC3 is polyphased with DCDC2 */
+
+/*
+ * The DRAM chips used by Pine64 boards are DDR3L-compatible, so they can
+ * work at 1.35V with less power consumption.
+ * As AXP803 DCDC5 cannot reach 1.35V accurately, use 1.36V instead.
+ */
+&reg_dcdc5 {
+ regulator-always-on;
+ regulator-min-microvolt = <1360000>;
+ regulator-max-microvolt = <1360000>;
+ regulator-name = "vcc-dram";
+};
+
+&reg_dcdc6 {
+ regulator-always-on;
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-sys";
+};
+
+&reg_dldo1 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-hdmi";
+};
+
+&reg_dldo2 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-mipi";
+};
+
+&reg_dldo4 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-wifi";
+};
+
+&reg_eldo1 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-name = "cpvdd";
+};
+
+&reg_fldo1 {
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-name = "vcc-1v2-hsic";
+};
+
+/*
+ * The A64 chip cannot work without this regulator off, although
+ * it seems to be only driving the AR100 core.
+ * Maybe we don't still know well about CPUs domain.
+ */
+&reg_fldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-cpus";
+};
+
+&reg_rtc_ldo {
+ regulator-name = "vcc-rtc";
+};
+
+/* On Exp and Euler connectors */
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins_a>;
status = "okay";
};
+/* On Wifi/BT connector, with RTS/CTS */
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
+ status = "disabled";
+};
+
+/* On Pi-2 connector */
+&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2_pins>;
+ status = "disabled";
+};
+
+/* On Euler connector */
+&uart3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart3_pins>;
+ status = "disabled";
+};
+
+/* On Euler connector, RTS/CTS optional */
+&uart4 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart4_pins>;
+ status = "disabled";
+};
+
&usb_otg {
dr_mode = "host";
status = "okay";
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-sopine-baseboard.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-sopine-baseboard.dts
new file mode 100644
index 000000000000..17ccc12b58df
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-sopine-baseboard.dts
@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2017 Icenowy Zheng <icenowy@aosc.xyz>
+ *
+ * Based on sun50i-a64-pine64.dts, which is:
+ * Copyright (c) 2016 ARM Ltd.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+
+#include "sun50i-a64-sopine.dtsi"
+
+/ {
+ model = "SoPine with baseboard";
+ compatible = "pine64,sopine-baseboard", "pine64,sopine",
+ "allwinner,sun50i-a64";
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ reg_vcc1v8: vcc1v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+};
+
+&ehci0 {
+ status = "okay";
+};
+
+&ehci1 {
+ status = "okay";
+};
+
+&mmc2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc2_pins>;
+ vmmc-supply = <&reg_vcc3v3>;
+ vqmmc-supply = <&reg_vcc1v8>;
+ bus-width = <8>;
+ non-removable;
+ cap-mmc-hw-reset;
+ status = "okay";
+};
+
+&ohci0 {
+ status = "okay";
+};
+
+&ohci1 {
+ status = "okay";
+};
+
+&reg_dc1sw {
+ regulator-name = "vcc-phy";
+};
+
+&reg_dldo1 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-hdmi";
+};
+
+&reg_dldo2 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-mipi";
+};
+
+&reg_dldo4 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-wifi";
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pins_a>;
+ status = "okay";
+};
+
+&usb_otg {
+ dr_mode = "host";
+ status = "okay";
+};
+
+&usbphy {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-sopine.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64-sopine.dtsi
new file mode 100644
index 000000000000..a5da18a6f286
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-sopine.dtsi
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2017 Icenowy Zheng <icenowy@aosc.xyz>
+ *
+ * Based on sun50i-a64-pine64.dts, which is:
+ * Copyright (c) 2016 ARM Ltd.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "sun50i-a64.dtsi"
+
+/ {
+ reg_vcc3v3: vcc3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+};
+
+&mmc0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_pins>;
+ vmmc-supply = <&reg_vcc3v3>;
+ non-removable;
+ disable-wp;
+ bus-width = <4>;
+ status = "okay";
+};
+
+&r_rsb {
+ status = "okay";
+
+ axp803: pmic@3a3 {
+ compatible = "x-powers,axp803";
+ reg = <0x3a3>;
+ interrupt-parent = <&r_intc>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ };
+};
+
+#include "axp803.dtsi"
+
+&reg_aldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-pl";
+};
+
+&reg_aldo3 {
+ regulator-always-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-name = "vcc-pll-avcc";
+};
+
+&reg_dcdc1 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-3v3";
+};
+
+&reg_dcdc2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1040000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-name = "vdd-cpux";
+};
+
+/* DCDC3 is polyphased with DCDC2 */
+
+&reg_dcdc5 {
+ regulator-always-on;
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-name = "vcc-dram";
+};
+
+&reg_dcdc6 {
+ regulator-always-on;
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-sys";
+};
+
+&reg_eldo1 {
+ regulator-always-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-name = "vdd-1v8-lpddr";
+};
+
+&reg_fldo1 {
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-name = "vcc-1v2-hsic";
+};
+
+/*
+ * The A64 chip cannot work without this regulator off, although
+ * it seems to be only driving the AR100 core.
+ * Maybe we don't still know well about CPUs domain.
+ */
+&reg_fldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-cpus";
+};
+
+&reg_rtc_ldo {
+ regulator-name = "vcc-rtc";
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index 166c9ef884dc..8c8db1b057df 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -43,6 +43,7 @@
*/
#include <dt-bindings/clock/sun50i-a64-ccu.h>
+#include <dt-bindings/clock/sun8i-r-ccu.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/reset/sun50i-a64-ccu.h>
@@ -129,6 +130,12 @@
#size-cells = <1>;
ranges;
+ syscon: syscon@1c00000 {
+ compatible = "allwinner,sun50i-a64-system-controller",
+ "syscon";
+ reg = <0x01c00000 0x1000>;
+ };
+
mmc0: mmc@1c0f000 {
compatible = "allwinner,sun50i-a64-mmc";
reg = <0x01c0f000 0x1000>;
@@ -204,6 +211,28 @@
#phy-cells = <1>;
};
+ ehci0: usb@01c1a000 {
+ compatible = "allwinner,sun50i-a64-ehci", "generic-ehci";
+ reg = <0x01c1a000 0x100>;
+ interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_OHCI0>,
+ <&ccu CLK_BUS_EHCI0>,
+ <&ccu CLK_USB_OHCI0>;
+ resets = <&ccu RST_BUS_OHCI0>,
+ <&ccu RST_BUS_EHCI0>;
+ status = "disabled";
+ };
+
+ ohci0: usb@01c1a400 {
+ compatible = "allwinner,sun50i-a64-ohci", "generic-ohci";
+ reg = <0x01c1a400 0x100>;
+ interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_OHCI0>,
+ <&ccu CLK_USB_OHCI0>;
+ resets = <&ccu RST_BUS_OHCI0>;
+ status = "disabled";
+ };
+
ehci1: usb@01c1b000 {
compatible = "allwinner,sun50i-a64-ehci", "generic-ehci";
reg = <0x01c1b000 0x100>;
@@ -281,6 +310,21 @@
bias-pull-up;
};
+ rmii_pins: rmii_pins {
+ pins = "PD10", "PD11", "PD13", "PD14", "PD17",
+ "PD18", "PD19", "PD20", "PD22", "PD23";
+ function = "emac";
+ drive-strength = <40>;
+ };
+
+ rgmii_pins: rgmii_pins {
+ pins = "PD8", "PD9", "PD10", "PD11", "PD12",
+ "PD13", "PD15", "PD16", "PD17", "PD18",
+ "PD19", "PD20", "PD21", "PD22", "PD23";
+ function = "emac";
+ drive-strength = <40>;
+ };
+
uart0_pins_a: uart0@0 {
pins = "PB8", "PB9";
function = "uart0";
@@ -295,6 +339,26 @@
pins = "PG8", "PG9";
function = "uart1";
};
+
+ uart2_pins: uart2-pins {
+ pins = "PB0", "PB1";
+ function = "uart2";
+ };
+
+ uart3_pins: uart3-pins {
+ pins = "PD0", "PD1";
+ function = "uart3";
+ };
+
+ uart4_pins: uart4-pins {
+ pins = "PD2", "PD3";
+ function = "uart4";
+ };
+
+ uart4_rts_cts_pins: uart4-rts-cts-pins {
+ pins = "PD4", "PD5";
+ function = "uart4";
+ };
};
uart0: serial@1c28000 {
@@ -303,8 +367,8 @@
interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
- clocks = <&ccu 67>;
- resets = <&ccu 46>;
+ clocks = <&ccu CLK_BUS_UART0>;
+ resets = <&ccu RST_BUS_UART0>;
status = "disabled";
};
@@ -314,8 +378,8 @@
interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
- clocks = <&ccu 68>;
- resets = <&ccu 47>;
+ clocks = <&ccu CLK_BUS_UART1>;
+ resets = <&ccu RST_BUS_UART1>;
status = "disabled";
};
@@ -325,8 +389,8 @@
interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
- clocks = <&ccu 69>;
- resets = <&ccu 48>;
+ clocks = <&ccu CLK_BUS_UART2>;
+ resets = <&ccu RST_BUS_UART2>;
status = "disabled";
};
@@ -336,8 +400,8 @@
interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
- clocks = <&ccu 70>;
- resets = <&ccu 49>;
+ clocks = <&ccu CLK_BUS_UART3>;
+ resets = <&ccu RST_BUS_UART3>;
status = "disabled";
};
@@ -347,8 +411,8 @@
interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
- clocks = <&ccu 71>;
- resets = <&ccu 50>;
+ clocks = <&ccu CLK_BUS_UART4>;
+ resets = <&ccu RST_BUS_UART4>;
status = "disabled";
};
@@ -356,8 +420,8 @@
compatible = "allwinner,sun6i-a31-i2c";
reg = <0x01c2ac00 0x400>;
interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&ccu 63>;
- resets = <&ccu 42>;
+ clocks = <&ccu CLK_BUS_I2C0>;
+ resets = <&ccu RST_BUS_I2C0>;
status = "disabled";
#address-cells = <1>;
#size-cells = <0>;
@@ -367,8 +431,8 @@
compatible = "allwinner,sun6i-a31-i2c";
reg = <0x01c2b000 0x400>;
interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&ccu 64>;
- resets = <&ccu 43>;
+ clocks = <&ccu CLK_BUS_I2C1>;
+ resets = <&ccu RST_BUS_I2C1>;
status = "disabled";
#address-cells = <1>;
#size-cells = <0>;
@@ -378,8 +442,8 @@
compatible = "allwinner,sun6i-a31-i2c";
reg = <0x01c2b400 0x400>;
interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&ccu 65>;
- resets = <&ccu 44>;
+ clocks = <&ccu CLK_BUS_I2C2>;
+ resets = <&ccu RST_BUS_I2C2>;
status = "disabled";
#address-cells = <1>;
#size-cells = <0>;
@@ -403,6 +467,15 @@
<GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
};
+ r_intc: interrupt-controller@1f00c00 {
+ compatible = "allwinner,sun50i-a64-r-intc",
+ "allwinner,sun6i-a31-r-intc";
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ reg = <0x01f00c00 0x400>;
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
r_ccu: clock@1f01400 {
compatible = "allwinner,sun50i-a64-r-ccu";
reg = <0x01f01400 0x100>;
@@ -417,12 +490,31 @@
compatible = "allwinner,sun50i-a64-r-pinctrl";
reg = <0x01f02c00 0x400>;
interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&r_ccu 3>, <&osc24M>, <&osc32k>;
+ clocks = <&r_ccu CLK_APB0_PIO>, <&osc24M>, <&osc32k>;
clock-names = "apb", "hosc", "losc";
gpio-controller;
#gpio-cells = <3>;
interrupt-controller;
#interrupt-cells = <3>;
+
+ r_rsb_pins: rsb@0 {
+ pins = "PL0", "PL1";
+ function = "s_rsb";
+ };
+ };
+
+ r_rsb: rsb@1f03400 {
+ compatible = "allwinner,sun8i-a23-rsb";
+ reg = <0x01f03400 0x400>;
+ interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&r_ccu 6>;
+ clock-frequency = <3000000>;
+ resets = <&r_ccu 2>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&r_rsb_pins>;
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
};
};
};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo2.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo2.dts
new file mode 100644
index 000000000000..1c2387bd5df6
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo2.dts
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include "sun50i-h5.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ model = "FriendlyARM NanoPi NEO 2";
+ compatible = "friendlyarm,nanopi-neo2", "allwinner,sun50i-h5";
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ pwr {
+ label = "nanopi:green:pwr";
+ gpios = <&r_pio 0 10 GPIO_ACTIVE_HIGH>;
+ default-state = "on";
+ };
+
+ status {
+ label = "nanopi:blue:status";
+ gpios = <&pio 0 10 GPIO_ACTIVE_HIGH>;
+ };
+ };
+
+ reg_gmac_3v3: gmac-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "gmac-3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ startup-delay-us = <100000>;
+ enable-active-high;
+ gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>;
+ };
+
+ reg_vcc3v3: vcc3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ reg_usb0_vbus: usb0-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usb0-vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ enable-active-high;
+ gpio = <&r_pio 0 2 GPIO_ACTIVE_HIGH>; /* PL2 */
+ status = "okay";
+ };
+};
+
+&ehci0 {
+ status = "okay";
+};
+
+&ehci3 {
+ status = "okay";
+};
+
+&mmc0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin>;
+ vmmc-supply = <&reg_vcc3v3>;
+ bus-width = <4>;
+ cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>; /* PF6 */
+ status = "okay";
+};
+
+&ohci0 {
+ status = "okay";
+};
+
+&ohci3 {
+ status = "okay";
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pins_a>;
+ status = "okay";
+};
+
+&usb_otg {
+ dr_mode = "otg";
+ status = "okay";
+};
+
+&usbphy {
+ /* USB Type-A port's VBUS is always on */
+ usb0_id_det-gpios = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
+ usb0_vbus-supply = <&reg_usb0_vbus>;
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-pc2.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-pc2.dts
index dfecc17dcc92..4f77c8470f6c 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-pc2.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-pc2.dts
@@ -91,6 +91,16 @@
};
};
+ reg_gmac_3v3: gmac-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "gmac-3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ startup-delay-us = <100000>;
+ enable-active-high;
+ gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>;
+ };
+
reg_usb0_vbus: usb0-vbus {
compatible = "regulator-fixed";
regulator-name = "usb0-vbus";
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-prime.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-prime.dts
new file mode 100644
index 000000000000..6be06873e5af
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-prime.dts
@@ -0,0 +1,215 @@
+/*
+ * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.xyz>
+ *
+ * Based on sun50i-h5-orangepi-pc2.dts, which is:
+ * Copyright (C) 2016 ARM Ltd.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include "sun50i-h5.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+ model = "Xunlong Orange Pi Prime";
+ compatible = "xunlong,orangepi-prime", "allwinner,sun50i-h5";
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ pwr {
+ label = "orangepi:green:pwr";
+ gpios = <&r_pio 0 10 GPIO_ACTIVE_HIGH>;
+ default-state = "on";
+ };
+
+ status {
+ label = "orangepi:red:status";
+ gpios = <&pio 0 20 GPIO_ACTIVE_HIGH>;
+ };
+ };
+
+ r-gpio-keys {
+ compatible = "gpio-keys";
+
+ sw4 {
+ label = "sw4";
+ linux,code = <BTN_0>;
+ gpios = <&r_pio 0 3 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ reg_gmac_3v3: gmac-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "gmac-3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ startup-delay-us = <100000>;
+ enable-active-high;
+ gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>;
+ };
+
+ reg_vcc3v3: vcc3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ reg_usb0_vbus: usb0-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usb0-vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ enable-active-high;
+ gpio = <&r_pio 0 2 GPIO_ACTIVE_HIGH>; /* PL2 */
+ status = "okay";
+ };
+
+ wifi_pwrseq: wifi_pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ reset-gpios = <&pio 2 14 GPIO_ACTIVE_LOW>; /* PC14 */
+ };
+};
+
+&codec {
+ allwinner,audio-routing =
+ "Line Out", "LINEOUT",
+ "MIC1", "Mic",
+ "Mic", "MBIAS";
+ status = "okay";
+};
+
+&ehci0 {
+ status = "okay";
+};
+
+&ehci1 {
+ status = "okay";
+};
+
+&ehci2 {
+ status = "okay";
+};
+
+&ehci3 {
+ status = "okay";
+};
+
+&ir {
+ pinctrl-names = "default";
+ pinctrl-0 = <&ir_pins_a>;
+ status = "okay";
+};
+
+&mmc0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin>;
+ vmmc-supply = <&reg_vcc3v3>;
+ bus-width = <4>;
+ cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>; /* PF6 */
+ status = "okay";
+};
+
+&mmc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc1_pins_a>;
+ vmmc-supply = <&reg_vcc3v3>;
+ mmc-pwrseq = <&wifi_pwrseq>;
+ bus-width = <4>;
+ non-removable;
+ status = "okay";
+};
+
+&ohci0 {
+ status = "okay";
+};
+
+&ohci1 {
+ status = "okay";
+};
+
+&ohci2 {
+ status = "okay";
+};
+
+&ohci3 {
+ status = "okay";
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pins_a>;
+ status = "okay";
+};
+
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_pins>;
+ status = "disabled";
+};
+
+&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2_pins>;
+ status = "disabled";
+};
+
+&usb_otg {
+ dr_mode = "otg";
+ status = "okay";
+};
+
+&usbphy {
+ /* USB Type-A ports' VBUS is always on */
+ usb0_id_det-gpios = <&pio 0 21 GPIO_ACTIVE_HIGH>; /* PA21 */
+ usb0_vbus-supply = <&reg_usb0_vbus>;
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus2.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus2.dts
new file mode 100644
index 000000000000..b6b7a561df8c
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus2.dts
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2017 Jagan Teki <jteki@openedev.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+
+#include "sun50i-h5.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ model = "OrangePi Zero Plus2";
+ compatible = "xunlong,orangepi-zero-plus2", "allwinner,sun50i-h5";
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ reg_vcc3v3: vcc3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+};
+
+&mmc0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin>;
+ vmmc-supply = <&reg_vcc3v3>;
+ bus-width = <4>;
+ cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>;
+ status = "okay";
+};
+
+&mmc2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc2_8bit_pins>;
+ vmmc-supply = <&reg_vcc3v3>;
+ bus-width = <8>;
+ non-removable;
+ cap-mmc-hw-reset;
+ status = "okay";
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pins_a>;
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
index 732e2e06f503..d9a720bff05d 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
@@ -120,5 +120,8 @@
};
&pio {
+ interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
compatible = "allwinner,sun50i-h5-pinctrl";
};
diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
index b9ad2db7398b..7a9f48c27b1f 100644
--- a/arch/arm64/boot/dts/amlogic/Makefile
+++ b/arch/arm64/boot/dts/amlogic/Makefile
@@ -1,3 +1,4 @@
+dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-nanopi-k2.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-nexbox-a95x.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-odroidc2.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-p200.dtb
@@ -7,15 +8,17 @@ dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-vega-s95-meta.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-vega-s95-telos.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-wetek-hub.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-wetek-play2.dtb
+dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905x-hwacom-amazetv.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905x-khadas-vim.dtb
+dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905x-libretech-cc.dtb
+dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905x-nexbox-a95x.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905x-p212.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905d-p230.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905d-p231.dtb
-dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905x-hwacom-amazetv.dtb
-dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905x-nexbox-a95x.dtb
+dtb-$(CONFIG_ARCH_MESON) += meson-gxm-nexbox-a1.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxm-q200.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxm-q201.dtb
-dtb-$(CONFIG_ARCH_MESON) += meson-gxm-nexbox-a1.dtb
+dtb-$(CONFIG_ARCH_MESON) += meson-gxm-rbox-pro.dtb
always := $(dtb-y)
subdir-y := $(dts-dirs)
diff --git a/arch/arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi
index a84e27622639..4157987f4a3d 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi
@@ -121,11 +121,33 @@
};
};
-/* This UART is brought out to the DB9 connector */
-&uart_AO {
+&cec_AO {
status = "okay";
- pinctrl-0 = <&uart_ao_a_pins>;
+ pinctrl-0 = <&ao_cec_pins>;
pinctrl-names = "default";
+ hdmi-phandle = <&hdmi_tx>;
+};
+
+&cvbs_vdac_port {
+ cvbs_vdac_out: endpoint {
+ remote-endpoint = <&cvbs_connector_in>;
+ };
+};
+
+&ethmac {
+ status = "okay";
+};
+
+&hdmi_tx {
+ status = "okay";
+ pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
+ pinctrl-names = "default";
+};
+
+&hdmi_tx_tmds_port {
+ hdmi_tx_tmds_out: endpoint {
+ remote-endpoint = <&hdmi_connector_in>;
+ };
};
&ir {
@@ -134,11 +156,20 @@
pinctrl-names = "default";
};
+&pwm_ef {
+ status = "okay";
+ pinctrl-0 = <&pwm_e_pins>;
+ pinctrl-names = "default";
+ clocks = <&clkc CLKID_FCLK_DIV4>;
+ clock-names = "clkin0";
+};
+
/* Wireless SDIO Module */
&sd_emmc_a {
status = "okay";
pinctrl-0 = <&sdio_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&sdio_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
#address-cells = <1>;
#size-cells = <0>;
@@ -154,7 +185,7 @@
vmmc-supply = <&vddao_3v3>;
vqmmc-supply = <&vddio_boot>;
- brcmf: bcrmf@1 {
+ brcmf: wifi@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
};
@@ -164,7 +195,8 @@
&sd_emmc_b {
status = "okay";
pinctrl-0 = <&sdcard_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&sdcard_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
bus-width = <4>;
cap-sd-highspeed;
@@ -182,10 +214,10 @@
&sd_emmc_c {
status = "okay";
pinctrl-0 = <&emmc_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&emmc_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
bus-width = <8>;
- cap-sd-highspeed;
cap-mmc-highspeed;
max-frequency = <200000000>;
non-removable;
@@ -198,32 +230,9 @@
vqmmc-supply = <&vddio_boot>;
};
-&pwm_ef {
- status = "okay";
- pinctrl-0 = <&pwm_e_pins>;
- pinctrl-names = "default";
- clocks = <&clkc CLKID_FCLK_DIV4>;
- clock-names = "clkin0";
-};
-
-&ethmac {
- status = "okay";
-};
-
-&cvbs_vdac_port {
- cvbs_vdac_out: endpoint {
- remote-endpoint = <&cvbs_connector_in>;
- };
-};
-
-&hdmi_tx {
+/* This UART is brought out to the DB9 connector */
+&uart_AO {
status = "okay";
- pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
+ pinctrl-0 = <&uart_ao_a_pins>;
pinctrl-names = "default";
};
-
-&hdmi_tx_tmds_port {
- hdmi_tx_tmds_out: endpoint {
- remote-endpoint = <&hdmi_connector_in>;
- };
-};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
index 436b875060e7..f175db846286 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
@@ -200,7 +200,7 @@
};
scpi_sensors: sensors {
- compatible = "arm,scpi-sensors";
+ compatible = "amlogic,meson-gxbb-scpi-sensors", "arm,scpi-sensors";
#thermal-sensor-cells = <1>;
};
};
@@ -225,7 +225,7 @@
};
uart_A: serial@84c0 {
- compatible = "amlogic,meson-uart";
+ compatible = "amlogic,meson-gx-uart", "amlogic,meson-uart";
reg = <0x0 0x84c0 0x0 0x14>;
interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
clocks = <&xtal>;
@@ -233,7 +233,7 @@
};
uart_B: serial@84dc {
- compatible = "amlogic,meson-uart";
+ compatible = "amlogic,meson-gx-uart", "amlogic,meson-uart";
reg = <0x0 0x84dc 0x0 0x14>;
interrupts = <GIC_SPI 75 IRQ_TYPE_EDGE_RISING>;
clocks = <&xtal>;
@@ -279,7 +279,7 @@
};
uart_C: serial@8700 {
- compatible = "amlogic,meson-uart";
+ compatible = "amlogic,meson-gx-uart", "amlogic,meson-uart";
reg = <0x0 0x8700 0x0 0x14>;
interrupts = <GIC_SPI 93 IRQ_TYPE_EDGE_RISING>;
clocks = <&xtal>;
@@ -304,6 +304,15 @@
status = "disabled";
};
+ spicc: spi@8d80 {
+ compatible = "amlogic,meson-gx-spicc";
+ reg = <0x0 0x08d80 0x0 0x80>;
+ interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
spifc: spi@8c80 {
compatible = "amlogic,meson-gx-spifc", "amlogic,meson-gxbb-spifc";
reg = <0x0 0x08c80 0x0 0x80>;
@@ -358,26 +367,40 @@
#size-cells = <2>;
ranges = <0x0 0x0 0x0 0xc8100000 0x0 0x100000>;
- clkc_AO: clock-controller@040 {
- compatible = "amlogic,gx-aoclkc", "amlogic,gxbb-aoclkc";
- reg = <0x0 0x00040 0x0 0x4>;
- #clock-cells = <1>;
- #reset-cells = <1>;
+ sysctrl_AO: sys-ctrl@0 {
+ compatible = "amlogic,meson-gx-ao-sysctrl", "syscon", "simple-mfd";
+ reg = <0x0 0x0 0x0 0x100>;
+
+ clkc_AO: clock-controller {
+ compatible = "amlogic,meson-gx-aoclkc";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+ };
+
+ cec_AO: cec@100 {
+ compatible = "amlogic,meson-gx-ao-cec";
+ reg = <0x0 0x00100 0x0 0x14>;
+ interrupts = <GIC_SPI 199 IRQ_TYPE_EDGE_RISING>;
+ };
+
+ sec_AO: ao-secure@140 {
+ compatible = "amlogic,meson-gx-ao-secure", "syscon";
+ reg = <0x0 0x140 0x0 0x140>;
+ amlogic,has-chip-id;
};
uart_AO: serial@4c0 {
- compatible = "amlogic,meson-uart";
+ compatible = "amlogic,meson-gx-uart", "amlogic,meson-ao-uart", "amlogic,meson-uart";
reg = <0x0 0x004c0 0x0 0x14>;
interrupts = <GIC_SPI 193 IRQ_TYPE_EDGE_RISING>;
- clocks = <&xtal>;
status = "disabled";
};
uart_AO_B: serial@4e0 {
- compatible = "amlogic,meson-uart";
+ compatible = "amlogic,meson-gx-uart", "amlogic,meson-ao-uart", "amlogic,meson-uart";
reg = <0x0 0x004e0 0x0 0x14>;
interrupts = <GIC_SPI 197 IRQ_TYPE_EDGE_RISING>;
- clocks = <&xtal>;
status = "disabled";
};
@@ -391,7 +414,7 @@
};
pwm_AO_ab: pwm@550 {
- compatible = "amlogic,meson-gx-pwm", "amlogic,meson-gxbb-pwm";
+ compatible = "amlogic,meson-gx-ao-pwm", "amlogic,meson-gxbb-ao-pwm";
reg = <0x0 0x00550 0x0 0x10>;
#pwm-cells = <3>;
status = "disabled";
@@ -428,9 +451,9 @@
mailbox: mailbox@404 {
compatible = "amlogic,meson-gx-mhu", "amlogic,meson-gxbb-mhu";
reg = <0 0x404 0 0x4c>;
- interrupts = <0 208 IRQ_TYPE_EDGE_RISING>,
- <0 209 IRQ_TYPE_EDGE_RISING>,
- <0 210 IRQ_TYPE_EDGE_RISING>;
+ interrupts = <GIC_SPI 208 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 209 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 210 IRQ_TYPE_EDGE_RISING>;
#mbox-cells = <1>;
};
};
@@ -439,7 +462,7 @@
compatible = "amlogic,meson-gx-dwmac", "amlogic,meson-gxbb-dwmac", "snps,dwmac";
reg = <0x0 0xc9410000 0x0 0x10000
0x0 0xc8834540 0x0 0x4>;
- interrupts = <0 8 1>;
+ interrupts = <GIC_SPI 8 IRQ_TYPE_EDGE_RISING>;
interrupt-names = "macirq";
status = "disabled";
};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
new file mode 100644
index 000000000000..4b17a76959b2
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
@@ -0,0 +1,358 @@
+/*
+ * Copyright (c) 2017 Andreas Färber
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+/dts-v1/;
+
+#include "meson-gxbb.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ compatible = "friendlyarm,nanopi-k2", "amlogic,meson-gxbb";
+
+ aliases {
+ serial0 = &uart_AO;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x0 0x0 0x80000000>;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ stat {
+ label = "nanopi-k2:blue:stat";
+ gpios = <&gpio_ao GPIOAO_13 GPIO_ACTIVE_HIGH>;
+ default-state = "on";
+ panic-indicator;
+ };
+ };
+
+ vdd_5v: regulator-vdd-5v {
+ compatible = "regulator-fixed";
+ regulator-name = "VDD_5V";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ };
+
+ vddio_ao18: regulator-vddio-ao18 {
+ compatible = "regulator-fixed";
+ regulator-name = "VDDIO_AO18";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ vddio_ao3v3: regulator-vddio-ao3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "VDDIO_AO3.3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ vddio_tf: regulator-vddio-tf {
+ compatible = "regulator-gpio";
+
+ regulator-name = "VDDIO_TF";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_HIGH>;
+ gpios-states = <0>;
+
+ states = <3300000 0>,
+ <1800000 1>;
+
+ regulator-settling-time-up-us = <100>;
+ regulator-settling-time-down-us = <5000>;
+ };
+
+ wifi_32k: wifi-32k {
+ compatible = "pwm-clock";
+ #clock-cells = <0>;
+ clock-frequency = <32768>;
+ pwms = <&pwm_ef 0 30518 0>; /* PWM_E at 32.768KHz */
+ };
+
+ sdio_pwrseq: sdio-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ reset-gpios = <&gpio GPIOX_6 GPIO_ACTIVE_LOW>;
+ clocks = <&wifi_32k>;
+ clock-names = "ext_clock";
+ };
+
+ vcc1v8: regulator-vcc1v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "VCC1.8V";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ vcc3v3: regulator-vcc3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "VCC3.3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ emmc_pwrseq: emmc-pwrseq {
+ compatible = "mmc-pwrseq-emmc";
+ reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>;
+ };
+};
+
+&ethmac {
+ status = "okay";
+ pinctrl-0 = <&eth_rgmii_pins>;
+ pinctrl-names = "default";
+
+ phy-handle = <&eth_phy0>;
+ phy-mode = "rgmii";
+
+ amlogic,tx-delay-ns = <2>;
+
+ snps,reset-gpio = <&gpio GPIOZ_14 0>;
+ snps,reset-delays-us = <0 10000 1000000>;
+ snps,reset-active-low;
+
+ mdio {
+ compatible = "snps,dwmac-mdio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ eth_phy0: ethernet-phy@0 {
+ /* Realtek RTL8211F (0x001cc916) */
+ reg = <0>;
+ };
+ };
+};
+
+&ir {
+ status = "okay";
+ pinctrl-0 = <&remote_input_ao_pins>;
+ pinctrl-names = "default";
+};
+
+&pinctrl_aobus {
+ gpio-line-names = "UART TX", "UART RX", "Power Control", "Power Key In",
+ "VCCK En", "CON1 Header Pin31",
+ "I2S Header Pin6", "IR In", "I2S Header Pin7",
+ "I2S Header Pin3", "I2S Header Pin4",
+ "I2S Header Pin5", "HDMI CEC", "SYS LED";
+};
+
+&pinctrl_periphs {
+ gpio-line-names = /* Bank GPIOZ */
+ "Eth MDIO", "Eth MDC", "Eth RGMII RX Clk",
+ "Eth RX DV", "Eth RX D0", "Eth RX D1", "Eth RX D2",
+ "Eth RX D3", "Eth RGMII TX Clk", "Eth TX En",
+ "Eth TX D0", "Eth TX D1", "Eth TX D2", "Eth TX D3",
+ "Eth PHY nRESET", "Eth PHY Intc",
+ /* Bank GPIOH */
+ "HDMI HPD", "HDMI DDC SDA", "HDMI DDC SCL",
+ "CON1 Header Pin33",
+ /* Bank BOOT */
+ "eMMC D0", "eMMC D1", "eMMC D2", "eMMC D3", "eMMC D4",
+ "eMMC D5", "eMMC D6", "eMMC D7", "eMMC Clk",
+ "eMMC Reset", "eMMC CMD",
+ "", "", "", "", "eMMC DS",
+ "", "",
+ /* Bank CARD */
+ "SDCard D1", "SDCard D0", "SDCard CLK", "SDCard CMD",
+ "SDCard D3", "SDCard D2", "SDCard Det",
+ /* Bank GPIODV */
+ "", "", "", "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "", "",
+ "I2C A SDA", "I2C A SCK", "I2C B SDA", "I2C B SCK",
+ "VDDEE Regulator", "VCCK Regulator",
+ /* Bank GPIOY */
+ "CON1 Header Pin7", "CON1 Header Pin11",
+ "CON1 Header Pin13", "CON1 Header Pin15",
+ "CON1 Header Pin18", "CON1 Header Pin19",
+ "CON1 Header Pin22", "CON1 Header Pin21",
+ "CON1 Header Pin24", "CON1 Header Pin23",
+ "CON1 Header Pin26", "CON1 Header Pin29",
+ "CON1 Header Pin32", "CON1 Header Pin8",
+ "CON1 Header Pin10", "CON1 Header Pin16",
+ "CON1 Header Pin12",
+ /* Bank GPIOX */
+ "WIFI SDIO D0", "WIFI SDIO D1", "WIFI SDIO D2",
+ "WIFI SDIO D3", "WIFI SDIO CLK", "WIFI SDIO CMD",
+ "WIFI Power Enable", "WIFI WAKE HOST",
+ "Bluetooth PCM DOUT", "Bluetooth PCM DIN",
+ "Bluetooth PCM SYNC", "Bluetooth PCM CLK",
+ "Bluetooth UART TX", "Bluetooth UART RX",
+ "Bluetooth UART CTS", "Bluetooth UART RTS",
+ "", "", "", "WIFI 32K", "Bluetooth Enable",
+ "Bluetooth WAKE HOST",
+ /* Bank GPIOCLK */
+ "", "CON1 Header Pin35", "", "",
+ /* GPIO_TEST_N */
+ "";
+};
+
+&pwm_ef {
+ status = "okay";
+ pinctrl-0 = <&pwm_e_pins>;
+ pinctrl-names = "default";
+ clocks = <&clkc CLKID_FCLK_DIV4>;
+ clock-names = "clkin0";
+};
+
+&saradc {
+ status = "okay";
+ vref-supply = <&vddio_ao18>;
+};
+
+/* SDIO */
+&sd_emmc_a {
+ status = "okay";
+ pinctrl-0 = <&sdio_pins>, <&sdio_irq_pins>;
+ pinctrl-1 = <&sdio_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ bus-width = <4>;
+ cap-sd-highspeed;
+ max-frequency = <200000000>;
+
+ non-removable;
+ disable-wp;
+
+ mmc-pwrseq = <&sdio_pwrseq>;
+
+ vmmc-supply = <&vddio_ao3v3>;
+ vqmmc-supply = <&vddio_ao18>;
+
+ brcmf: wifi@1 {
+ compatible = "brcm,bcm4329-fmac";
+ reg = <1>;
+ };
+};
+
+/* SD */
+&sd_emmc_b {
+ status = "okay";
+ pinctrl-0 = <&sdcard_pins>;
+ pinctrl-1 = <&sdcard_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
+
+ bus-width = <4>;
+ cap-sd-highspeed;
+ sd-uhs-sdr12;
+ sd-uhs-sdr25;
+ sd-uhs-sdr50;
+ sd-uhs-sdr104;
+ max-frequency = <200000000>;
+ disable-wp;
+
+ cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
+ cd-inverted;
+
+ vmmc-supply = <&vddio_ao3v3>;
+ vqmmc-supply = <&vddio_tf>;
+};
+
+/* eMMC */
+&sd_emmc_c {
+ status = "disabled";
+ pinctrl-0 = <&emmc_pins>;
+ pinctrl-1 = <&emmc_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
+
+ bus-width = <8>;
+ max-frequency = <200000000>;
+ non-removable;
+ disable-wp;
+ cap-mmc-highspeed;
+ mmc-ddr-1_8v;
+ mmc-hs200-1_8v;
+
+ mmc-pwrseq = <&emmc_pwrseq>;
+ vmmc-supply = <&vcc3v3>;
+ vqmmc-supply = <&vcc1v8>;
+};
+
+/* DBG_UART */
+&uart_AO {
+ status = "okay";
+ pinctrl-0 = <&uart_ao_a_pins>;
+ pinctrl-names = "default";
+};
+
+/* Bluetooth on AP6212 */
+&uart_A {
+ status = "disabled";
+ pinctrl-0 = <&uart_a_pins>, <&uart_a_cts_rts_pins>;
+ pinctrl-names = "default";
+};
+
+/* 40-pin CON1 */
+&uart_C {
+ status = "disabled";
+ pinctrl-0 = <&uart_c_pins>;
+ pinctrl-names = "default";
+};
+
+&usb0_phy {
+ status = "okay";
+ phy-supply = <&vdd_5v>;
+};
+
+&usb1_phy {
+ status = "okay";
+};
+
+&usb0 {
+ status = "okay";
+};
+
+&usb1 {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts
index 87198eafb04b..38dfdde5c147 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts
@@ -51,7 +51,7 @@
/ {
compatible = "nexbox,a95x", "amlogic,meson-gxbb";
model = "NEXBOX A95X";
-
+
aliases {
serial0 = &uart_AO;
};
@@ -165,10 +165,17 @@
};
};
-&uart_AO {
+&cvbs_vdac_port {
+ cvbs_vdac_out: endpoint {
+ remote-endpoint = <&cvbs_connector_in>;
+ };
+};
+
+&cec_AO {
status = "okay";
- pinctrl-0 = <&uart_ao_a_pins>;
+ pinctrl-0 = <&ao_cec_pins>;
pinctrl-names = "default";
+ hdmi-phandle = <&hdmi_tx>;
};
&ethmac {
@@ -195,17 +202,38 @@
};
};
+&hdmi_tx {
+ status = "okay";
+ pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
+ pinctrl-names = "default";
+};
+
+&hdmi_tx_tmds_port {
+ hdmi_tx_tmds_out: endpoint {
+ remote-endpoint = <&hdmi_connector_in>;
+ };
+};
+
&ir {
status = "okay";
pinctrl-0 = <&remote_input_ao_pins>;
pinctrl-names = "default";
};
+&pwm_ef {
+ status = "okay";
+ pinctrl-0 = <&pwm_e_pins>;
+ pinctrl-names = "default";
+ clocks = <&clkc CLKID_FCLK_DIV4>;
+ clock-names = "clkin0";
+};
+
/* Wireless SDIO Module */
&sd_emmc_a {
status = "okay";
pinctrl-0 = <&sdio_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&sdio_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
#address-cells = <1>;
#size-cells = <0>;
@@ -226,7 +254,8 @@
&sd_emmc_b {
status = "okay";
pinctrl-0 = <&sdcard_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&sdcard_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
bus-width = <4>;
cap-sd-highspeed;
@@ -244,10 +273,10 @@
&sd_emmc_c {
status = "okay";
pinctrl-0 = <&emmc_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&emmc_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
bus-width = <8>;
- cap-sd-highspeed;
cap-mmc-highspeed;
max-frequency = <200000000>;
non-removable;
@@ -260,28 +289,8 @@
vqmmc-supply = <&vddio_boot>;
};
-&pwm_ef {
- status = "okay";
- pinctrl-0 = <&pwm_e_pins>;
- pinctrl-names = "default";
- clocks = <&clkc CLKID_FCLK_DIV4>;
- clock-names = "clkin0";
-};
-
-&cvbs_vdac_port {
- cvbs_vdac_out: endpoint {
- remote-endpoint = <&cvbs_connector_in>;
- };
-};
-
-&hdmi_tx {
+&uart_AO {
status = "okay";
- pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
+ pinctrl-0 = <&uart_ao_a_pins>;
pinctrl-names = "default";
};
-
-&hdmi_tx_tmds_port {
- hdmi_tx_tmds_out: endpoint {
- remote-endpoint = <&hdmi_connector_in>;
- };
-};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
index 54a9c6a6b392..1ffa1c238a72 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
@@ -50,7 +50,7 @@
/ {
compatible = "hardkernel,odroid-c2", "amlogic,meson-gxbb";
model = "Hardkernel ODROID-C2";
-
+
aliases {
serial0 = &uart_AO;
};
@@ -137,16 +137,6 @@
};
};
-&scpi_clocks {
- status = "disabled";
-};
-
-&uart_AO {
- status = "okay";
- pinctrl-0 = <&uart_ao_a_pins>;
- pinctrl-names = "default";
-};
-
&ethmac {
status = "okay";
pinctrl-0 = <&eth_rgmii_pins>;
@@ -172,6 +162,33 @@
};
};
+&gpio_ao {
+ /*
+ * WARNING: The USB Hub on the Odroid-C2 needs a reset signal
+ * to be turned high in order to be detected by the USB Controller
+ * This signal should be handled by a USB specific power sequence
+ * in order to reset the Hub when USB bus is powered down.
+ */
+ usb-hub {
+ gpio-hog;
+ gpios = <GPIOAO_4 GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "usb-hub-reset";
+ };
+};
+
+&i2c_A {
+ status = "okay";
+ pinctrl-0 = <&i2c_a_pins>;
+ pinctrl-names = "default";
+};
+
+&ir {
+ status = "okay";
+ pinctrl-0 = <&remote_input_ao_pins>;
+ pinctrl-names = "default";
+};
+
&pinctrl_aobus {
gpio-line-names = "UART TX", "UART RX", "VCCK En", "TF 3V3/1V8 En",
"USB HUB nRESET", "USB OTG Power En",
@@ -223,60 +240,21 @@
"";
};
-&ir {
- status = "okay";
- pinctrl-0 = <&remote_input_ao_pins>;
- pinctrl-names = "default";
-};
-
-&i2c_A {
- status = "okay";
- pinctrl-0 = <&i2c_a_pins>;
- pinctrl-names = "default";
-};
-
-&gpio_ao {
- /*
- * WARNING: The USB Hub on the Odroid-C2 needs a reset signal
- * to be turned high in order to be detected by the USB Controller
- * This signal should be handled by a USB specific power sequence
- * in order to reset the Hub when USB bus is powered down.
- */
- usb-hub {
- gpio-hog;
- gpios = <GPIOAO_4 GPIO_ACTIVE_HIGH>;
- output-high;
- line-name = "usb-hub-reset";
- };
-};
-
-&usb0_phy {
- status = "okay";
- phy-supply = <&usb_otg_pwr>;
-};
-
-&usb1_phy {
- status = "okay";
-};
-
-&usb0 {
- status = "okay";
-};
-
-&usb1 {
- status = "okay";
-};
-
&saradc {
status = "okay";
vref-supply = <&vcc1v8>;
};
+&scpi_clocks {
+ status = "disabled";
+};
+
/* SD */
&sd_emmc_b {
status = "okay";
pinctrl-0 = <&sdcard_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&sdcard_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
bus-width = <4>;
cap-sd-highspeed;
@@ -294,10 +272,10 @@
&sd_emmc_c {
status = "okay";
pinctrl-0 = <&emmc_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&emmc_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
bus-width = <8>;
- cap-sd-highspeed;
max-frequency = <200000000>;
non-removable;
disable-wp;
@@ -309,3 +287,26 @@
vmmc-supply = <&vcc3v3>;
vqmmc-supply = <&vcc1v8>;
};
+
+&uart_AO {
+ status = "okay";
+ pinctrl-0 = <&uart_ao_a_pins>;
+ pinctrl-names = "default";
+};
+
+&usb0_phy {
+ status = "okay";
+ phy-supply = <&usb_otg_pwr>;
+};
+
+&usb1_phy {
+ status = "okay";
+};
+
+&usb0 {
+ status = "okay";
+};
+
+&usb1 {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi
index 3c6c0b7f4187..23c08c3afd0a 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi
@@ -84,6 +84,9 @@
/* Based on P200 schematics, signal CARD_1.8V/3.3V_CTR */
states = <1800000 0
3300000 1>;
+
+ regulator-settling-time-up-us = <10000>;
+ regulator-settling-time-down-us = <150000>;
};
vddio_boot: regulator-vddio_boot {
@@ -126,7 +129,7 @@
clock-names = "ext_clock";
};
- cvbs-connector {
+ cvbs_connector: cvbs-connector {
compatible = "composite-video-connector";
port {
@@ -148,41 +151,51 @@
};
};
-/* This UART is brought out to the DB9 connector */
-&uart_AO {
+&cec_AO {
status = "okay";
- pinctrl-0 = <&uart_ao_a_pins>;
+ pinctrl-0 = <&ao_cec_pins>;
pinctrl-names = "default";
+ hdmi-phandle = <&hdmi_tx>;
};
-&ir {
- status = "okay";
- pinctrl-0 = <&remote_input_ao_pins>;
- pinctrl-names = "default";
+&cvbs_vdac_port {
+ cvbs_vdac_out: endpoint {
+ remote-endpoint = <&cvbs_connector_in>;
+ };
};
-&usb0_phy {
+&hdmi_tx {
status = "okay";
- phy-supply = <&usb_pwr>;
+ pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
+ pinctrl-names = "default";
};
-&usb1_phy {
- status = "okay";
+&hdmi_tx_tmds_port {
+ hdmi_tx_tmds_out: endpoint {
+ remote-endpoint = <&hdmi_connector_in>;
+ };
};
-&usb0 {
+&ir {
status = "okay";
+ pinctrl-0 = <&remote_input_ao_pins>;
+ pinctrl-names = "default";
};
-&usb1 {
+&pwm_ef {
status = "okay";
+ pinctrl-0 = <&pwm_e_pins>;
+ pinctrl-names = "default";
+ clocks = <&clkc CLKID_FCLK_DIV4>;
+ clock-names = "clkin0";
};
/* Wireless SDIO Module */
&sd_emmc_a {
status = "okay";
pinctrl-0 = <&sdio_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&sdio_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
#address-cells = <1>;
#size-cells = <0>;
@@ -198,7 +211,7 @@
vmmc-supply = <&vddao_3v3>;
vqmmc-supply = <&vddio_boot>;
- brcmf: bcrmf@1 {
+ brcmf: wifi@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
};
@@ -208,10 +221,14 @@
&sd_emmc_b {
status = "okay";
pinctrl-0 = <&sdcard_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&sdcard_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
bus-width = <4>;
cap-sd-highspeed;
+ sd-uhs-sdr12;
+ sd-uhs-sdr25;
+ sd-uhs-sdr50;
max-frequency = <100000000>;
disable-wp;
@@ -226,10 +243,10 @@
&sd_emmc_c {
status = "okay";
pinctrl-0 = <&emmc_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&emmc_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
bus-width = <8>;
- cap-sd-highspeed;
cap-mmc-highspeed;
max-frequency = <200000000>;
non-removable;
@@ -242,28 +259,26 @@
vqmmc-supply = <&vddio_boot>;
};
-&pwm_ef {
+/* This UART is brought out to the DB9 connector */
+&uart_AO {
status = "okay";
- pinctrl-0 = <&pwm_e_pins>;
+ pinctrl-0 = <&uart_ao_a_pins>;
pinctrl-names = "default";
- clocks = <&clkc CLKID_FCLK_DIV4>;
- clock-names = "clkin0";
};
-&cvbs_vdac_port {
- cvbs_vdac_out: endpoint {
- remote-endpoint = <&cvbs_connector_in>;
- };
+&usb0_phy {
+ status = "okay";
+ phy-supply = <&usb_pwr>;
};
-&hdmi_tx {
+&usb1_phy {
status = "okay";
- pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
- pinctrl-names = "default";
};
-&hdmi_tx_tmds_port {
- hdmi_tx_tmds_out: endpoint {
- remote-endpoint = <&hdmi_connector_in>;
- };
+&usb0 {
+ status = "okay";
+};
+
+&usb1 {
+ status = "okay";
};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
index aefa66dff72d..f2bc6dea1fc6 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
@@ -111,18 +111,6 @@
};
};
-&uart_AO {
- status = "okay";
- pinctrl-0 = <&uart_ao_a_pins>;
- pinctrl-names = "default";
-};
-
-&ir {
- status = "okay";
- pinctrl-0 = <&remote_input_ao_pins>;
- pinctrl-names = "default";
-};
-
&ethmac {
status = "okay";
pinctrl-0 = <&eth_rgmii_pins>;
@@ -149,28 +137,26 @@
};
};
-&usb0_phy {
- status = "okay";
- phy-supply = <&usb_vbus>;
-};
-
-&usb1_phy {
- status = "okay";
-};
-
-&usb0 {
+&ir {
status = "okay";
+ pinctrl-0 = <&remote_input_ao_pins>;
+ pinctrl-names = "default";
};
-&usb1 {
+&pwm_ef {
status = "okay";
+ pinctrl-0 = <&pwm_e_pins>;
+ pinctrl-names = "default";
+ clocks = <&clkc CLKID_FCLK_DIV4>;
+ clock-names = "clkin0";
};
/* Wireless SDIO Module */
&sd_emmc_a {
status = "okay";
pinctrl-0 = <&sdio_pins &sdio_irq_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&sdio_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
#address-cells = <1>;
#size-cells = <0>;
@@ -186,7 +172,7 @@
vmmc-supply = <&vcc_3v3>;
vqmmc-supply = <&vcc_1v8>;
- brcmf: bcrmf@1 {
+ brcmf: wifi@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
};
@@ -196,7 +182,8 @@
&sd_emmc_b {
status = "okay";
pinctrl-0 = <&sdcard_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&sdcard_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
bus-width = <4>;
cap-sd-highspeed;
@@ -213,10 +200,10 @@
&sd_emmc_c {
status = "okay";
pinctrl-0 = <&emmc_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&emmc_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
bus-width = <8>;
- cap-sd-highspeed;
cap-mmc-highspeed;
max-frequency = <200000000>;
non-removable;
@@ -229,10 +216,25 @@
vmmcq-sumpply = <&vcc_1v8>;
};
-&pwm_ef {
+&uart_AO {
status = "okay";
- pinctrl-0 = <&pwm_e_pins>;
+ pinctrl-0 = <&uart_ao_a_pins>;
pinctrl-names = "default";
- clocks = <&clkc CLKID_FCLK_DIV4>;
- clock-names = "clkin0";
+};
+
+&usb0_phy {
+ status = "okay";
+ phy-supply = <&usb_vbus>;
+};
+
+&usb1_phy {
+ status = "okay";
+};
+
+&usb0 {
+ status = "okay";
+};
+
+&usb1 {
+ status = "okay";
};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-hub.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-hub.dts
index f057fb48fee5..1878ac2b2b83 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-hub.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-hub.dts
@@ -59,10 +59,10 @@
panic-indicator;
};
};
+};
- cvbs-connector {
- status = "disabled";
- };
+&cvbs_connector {
+ status = "disabled";
};
&ethmac {
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts
index 743acb5f5d06..f7144fd5e03f 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts
@@ -85,6 +85,40 @@
gpios = <&gpio_ao GPIOAO_3 GPIO_ACTIVE_LOW>;
};
};
+
+ cvbs-connector {
+ compatible = "composite-video-connector";
+
+ port {
+ cvbs_connector_in: endpoint {
+ remote-endpoint = <&cvbs_vdac_out>;
+ };
+ };
+ };
+
+ hdmi-connector {
+ compatible = "hdmi-connector";
+ type = "a";
+
+ port {
+ hdmi_connector_in: endpoint {
+ remote-endpoint = <&hdmi_tx_tmds_out>;
+ };
+ };
+ };
+};
+
+&cec_AO {
+ status = "okay";
+ pinctrl-0 = <&ao_cec_pins>;
+ pinctrl-names = "default";
+ hdmi-phandle = <&hdmi_tx>;
+};
+
+&cvbs_vdac_port {
+ cvbs_vdac_out: endpoint {
+ remote-endpoint = <&cvbs_connector_in>;
+ };
};
&ethmac {
@@ -113,6 +147,18 @@
};
};
+&hdmi_tx {
+ status = "okay";
+ pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
+ pinctrl-names = "default";
+};
+
+&hdmi_tx_tmds_port {
+ hdmi_tx_tmds_out: endpoint {
+ remote-endpoint = <&hdmi_connector_in>;
+ };
+};
+
&i2c_A {
status = "okay";
pinctrl-0 = <&i2c_a_pins>;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
index 86105a69690a..af834cdbba79 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
@@ -97,13 +97,6 @@
};
};
-&ethmac {
- clocks = <&clkc CLKID_ETH>,
- <&clkc CLKID_FCLK_DIV2>,
- <&clkc CLKID_MPLL2>;
- clock-names = "stmmaceth", "clkin0", "clkin1";
-};
-
&aobus {
pinctrl_aobus: pinctrl@14 {
compatible = "amlogic,meson-gxbb-aobus-pinctrl";
@@ -249,9 +242,128 @@
function = "spdif_out_ao";
};
};
+
+ ao_cec_pins: ao_cec {
+ mux {
+ groups = "ao_cec";
+ function = "cec_ao";
+ };
+ };
+
+ ee_cec_pins: ee_cec {
+ mux {
+ groups = "ee_cec";
+ function = "cec_ao";
+ };
+ };
+ };
+};
+
+&apb {
+ mali: gpu@c0000 {
+ compatible = "amlogic,meson-gxbb-mali", "arm,mali-450";
+ reg = <0x0 0xc0000 0x0 0x40000>;
+ interrupts = <GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "gp", "gpmmu", "pp", "pmu",
+ "pp0", "ppmmu0", "pp1", "ppmmu1",
+ "pp2", "ppmmu2";
+ clocks = <&clkc CLKID_CLK81>, <&clkc CLKID_MALI>;
+ clock-names = "bus", "core";
+
+ /*
+ * Mali clocking is provided by two identical clock paths
+ * MALI_0 and MALI_1 muxed to a single clock by a glitch
+ * free mux to safely change frequency while running.
+ */
+ assigned-clocks = <&clkc CLKID_MALI_0_SEL>,
+ <&clkc CLKID_MALI_0>,
+ <&clkc CLKID_MALI>; /* Glitch free mux */
+ assigned-clock-parents = <&clkc CLKID_FCLK_DIV3>,
+ <0>, /* Do Nothing */
+ <&clkc CLKID_MALI_0>;
+ assigned-clock-rates = <0>, /* Do Nothing */
+ <666666666>,
+ <0>; /* Do Nothing */
+ };
+};
+
+&cbus {
+ spifc: spi@8c80 {
+ compatible = "amlogic,meson-gxbb-spifc";
+ reg = <0x0 0x08c80 0x0 0x80>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clkc CLKID_SPI>;
+ status = "disabled";
};
};
+&cec_AO {
+ clocks = <&clkc_AO CLKID_AO_CEC_32K>;
+ clock-names = "core";
+};
+
+&clkc_AO {
+ compatible = "amlogic,meson-gxbb-aoclkc", "amlogic,meson-gx-aoclkc";
+};
+
+&ethmac {
+ clocks = <&clkc CLKID_ETH>,
+ <&clkc CLKID_FCLK_DIV2>,
+ <&clkc CLKID_MPLL2>;
+ clock-names = "stmmaceth", "clkin0", "clkin1";
+};
+
+&hdmi_tx {
+ compatible = "amlogic,meson-gxbb-dw-hdmi", "amlogic,meson-gx-dw-hdmi";
+ resets = <&reset RESET_HDMITX_CAPB3>,
+ <&reset RESET_HDMI_SYSTEM_RESET>,
+ <&reset RESET_HDMI_TX>;
+ reset-names = "hdmitx_apb", "hdmitx", "hdmitx_phy";
+ clocks = <&clkc CLKID_HDMI_PCLK>,
+ <&clkc CLKID_CLK81>,
+ <&clkc CLKID_GCLK_VENCI_INT0>;
+ clock-names = "isfr", "iahb", "venci";
+};
+
+&hiubus {
+ clkc: clock-controller@0 {
+ compatible = "amlogic,gxbb-clkc";
+ #clock-cells = <1>;
+ reg = <0x0 0x0 0x0 0x3db>;
+ };
+};
+
+&hwrng {
+ clocks = <&clkc CLKID_RNG0>;
+ clock-names = "core";
+};
+
+&i2c_A {
+ clocks = <&clkc CLKID_I2C>;
+};
+
+&i2c_AO {
+ clocks = <&clkc CLKID_AO_I2C>;
+};
+
+&i2c_B {
+ clocks = <&clkc CLKID_I2C>;
+};
+
+&i2c_C {
+ clocks = <&clkc CLKID_I2C>;
+};
+
&periphs {
pinctrl_periphs: pinctrl@4b0 {
compatible = "amlogic,meson-gxbb-periphs-pinctrl";
@@ -262,7 +374,7 @@
gpio: bank@4b0 {
reg = <0x0 0x004b0 0x0 0x28>,
<0x0 0x004e8 0x0 0x14>,
- <0x0 0x00120 0x0 0x14>,
+ <0x0 0x00520 0x0 0x14>,
<0x0 0x00430 0x0 0x40>;
reg-names = "mux", "pull", "pull-enable", "gpio";
gpio-controller;
@@ -280,6 +392,17 @@
};
};
+ emmc_clk_gate_pins: emmc_clk_gate {
+ mux {
+ groups = "BOOT_8";
+ function = "gpio_periphs";
+ };
+ cfg-pull-down {
+ pins = "BOOT_8";
+ bias-pull-down;
+ };
+ };
+
nor_pins: nor {
mux {
groups = "nor_d",
@@ -290,6 +413,22 @@
};
};
+ spi_pins: spi {
+ mux {
+ groups = "spi_miso",
+ "spi_mosi",
+ "spi_sclk";
+ function = "spi";
+ };
+ };
+
+ spi_ss0_pins: spi-ss0 {
+ mux {
+ groups = "spi_ss0";
+ function = "spi";
+ };
+ };
+
sdcard_pins: sdcard {
mux {
groups = "sdcard_d0",
@@ -302,6 +441,17 @@
};
};
+ sdcard_clk_gate_pins: sdcard_clk_gate {
+ mux {
+ groups = "CARD_2";
+ function = "gpio_periphs";
+ };
+ cfg-pull-down {
+ pins = "CARD_2";
+ bias-pull-down;
+ };
+ };
+
sdio_pins: sdio {
mux {
groups = "sdio_d0",
@@ -314,6 +464,17 @@
};
};
+ sdio_clk_gate_pins: sdio_clk_gate {
+ mux {
+ groups = "GPIOX_4";
+ function = "gpio_periphs";
+ };
+ cfg-pull-down {
+ pins = "GPIOX_4";
+ bias-pull-down;
+ };
+ };
+
sdio_irq_pins: sdio_irq {
mux {
groups = "sdio_irq";
@@ -521,67 +682,6 @@
};
};
-&hiubus {
- clkc: clock-controller@0 {
- compatible = "amlogic,gxbb-clkc";
- #clock-cells = <1>;
- reg = <0x0 0x0 0x0 0x3db>;
- };
-};
-
-&apb {
- mali: gpu@c0000 {
- compatible = "amlogic,meson-gxbb-mali", "arm,mali-450";
- reg = <0x0 0xc0000 0x0 0x40000>;
- interrupts = <GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "gp", "gpmmu", "pp", "pmu",
- "pp0", "ppmmu0", "pp1", "ppmmu1",
- "pp2", "ppmmu2";
- clocks = <&clkc CLKID_CLK81>, <&clkc CLKID_MALI>;
- clock-names = "bus", "core";
-
- /*
- * Mali clocking is provided by two identical clock paths
- * MALI_0 and MALI_1 muxed to a single clock by a glitch
- * free mux to safely change frequency while running.
- */
- assigned-clocks = <&clkc CLKID_MALI_0_SEL>,
- <&clkc CLKID_MALI_0>,
- <&clkc CLKID_MALI>; /* Glitch free mux */
- assigned-clock-parents = <&clkc CLKID_FCLK_DIV3>,
- <0>, /* Do Nothing */
- <&clkc CLKID_MALI_0>;
- assigned-clock-rates = <0>, /* Do Nothing */
- <666666666>,
- <0>; /* Do Nothing */
- };
-};
-
-&i2c_A {
- clocks = <&clkc CLKID_I2C>;
-};
-
-&i2c_AO {
- clocks = <&clkc CLKID_AO_I2C>;
-};
-
-&i2c_B {
- clocks = <&clkc CLKID_I2C>;
-};
-
-&i2c_C {
- clocks = <&clkc CLKID_I2C>;
-};
-
&saradc {
compatible = "amlogic,meson-gxbb-saradc", "amlogic,meson-saradc";
clocks = <&xtal>,
@@ -594,46 +694,61 @@
&sd_emmc_a {
clocks = <&clkc CLKID_SD_EMMC_A>,
- <&xtal>,
+ <&clkc CLKID_SD_EMMC_A_CLK0>,
<&clkc CLKID_FCLK_DIV2>;
clock-names = "core", "clkin0", "clkin1";
};
&sd_emmc_b {
clocks = <&clkc CLKID_SD_EMMC_B>,
- <&xtal>,
+ <&clkc CLKID_SD_EMMC_B_CLK0>,
<&clkc CLKID_FCLK_DIV2>;
clock-names = "core", "clkin0", "clkin1";
};
&sd_emmc_c {
clocks = <&clkc CLKID_SD_EMMC_C>,
- <&xtal>,
+ <&clkc CLKID_SD_EMMC_C_CLK0>,
<&clkc CLKID_FCLK_DIV2>;
clock-names = "core", "clkin0", "clkin1";
};
+&spicc {
+ clocks = <&clkc CLKID_SPICC>;
+ clock-names = "core";
+ resets = <&reset RESET_PERIPHS_SPICC>;
+ num-cs = <1>;
+};
+
&spifc {
clocks = <&clkc CLKID_SPI>;
};
-&vpu {
- compatible = "amlogic,meson-gxbb-vpu", "amlogic,meson-gx-vpu";
+&uart_A {
+ clocks = <&xtal>, <&clkc CLKID_UART0>, <&xtal>;
+ clock-names = "xtal", "pclk", "baud";
};
-&hwrng {
- clocks = <&clkc CLKID_RNG0>;
- clock-names = "core";
+&uart_AO {
+ clocks = <&xtal>, <&clkc CLKID_CLK81>, <&xtal>;
+ clock-names = "xtal", "pclk", "baud";
};
-&hdmi_tx {
- compatible = "amlogic,meson-gxbb-dw-hdmi", "amlogic,meson-gx-dw-hdmi";
- resets = <&reset RESET_HDMITX_CAPB3>,
- <&reset RESET_HDMI_SYSTEM_RESET>,
- <&reset RESET_HDMI_TX>;
- reset-names = "hdmitx_apb", "hdmitx", "hdmitx_phy";
- clocks = <&clkc CLKID_HDMI_PCLK>,
- <&clkc CLKID_CLK81>,
- <&clkc CLKID_GCLK_VENCI_INT0>;
- clock-names = "isfr", "iahb", "venci";
+&uart_AO_B {
+ clocks = <&xtal>, <&clkc CLKID_CLK81>, <&xtal>;
+ clock-names = "xtal", "pclk", "baud";
+};
+
+&uart_B {
+ clocks = <&xtal>, <&clkc CLKID_UART1>, <&xtal>;
+ clock-names = "xtal", "core", "baud";
+};
+
+&uart_C {
+ clocks = <&xtal>, <&clkc CLKID_UART2>, <&xtal>;
+ clock-names = "xtal", "core", "baud";
+};
+
+&vpu {
+ compatible = "amlogic,meson-gxbb-vpu", "amlogic,meson-gx-vpu";
};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905d-p230.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905d-p230.dts
index f9fbfdad8dde..6827f235d7cf 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905d-p230.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905d-p230.dts
@@ -84,6 +84,24 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
+
+ hdmi-connector {
+ compatible = "hdmi-connector";
+ type = "a";
+
+ port {
+ hdmi_connector_in: endpoint {
+ remote-endpoint = <&hdmi_tx_tmds_out>;
+ };
+ };
+ };
+};
+
+&cec_AO {
+ status = "okay";
+ pinctrl-0 = <&ao_cec_pins>;
+ pinctrl-names = "default";
+ hdmi-phandle = <&hdmi_tx>;
};
/* P230 has exclusive choice between internal or external PHY */
@@ -113,6 +131,18 @@
};
};
+&hdmi_tx {
+ status = "okay";
+ pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
+ pinctrl-names = "default";
+};
+
+&hdmi_tx_tmds_port {
+ hdmi_tx_tmds_out: endpoint {
+ remote-endpoint = <&hdmi_connector_in>;
+ };
+};
+
&saradc {
status = "okay";
vref-supply = <&vddio_ao18>;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-hwacom-amazetv.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-hwacom-amazetv.dts
index 2a5804ce7f4b..977b4240f3c1 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-hwacom-amazetv.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-hwacom-amazetv.dts
@@ -123,7 +123,8 @@
&sd_emmc_b {
status = "okay";
pinctrl-0 = <&sdcard_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&sdcard_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
bus-width = <4>;
cap-sd-highspeed;
@@ -141,10 +142,10 @@
&sd_emmc_c {
status = "okay";
pinctrl-0 = <&emmc_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&emmc_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
bus-width = <8>;
- cap-sd-highspeed;
cap-mmc-highspeed;
max-frequency = <100000000>;
non-removable;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-khadas-vim.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-khadas-vim.dts
index 3c8b0b51ef27..edc512ad0bac 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-khadas-vim.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-khadas-vim.dts
@@ -54,6 +54,36 @@
linux,default-trigger = "default-on";
};
};
+
+ hdmi-connector {
+ compatible = "hdmi-connector";
+ type = "a";
+
+ port {
+ hdmi_connector_in: endpoint {
+ remote-endpoint = <&hdmi_tx_tmds_out>;
+ };
+ };
+ };
+};
+
+&cec_AO {
+ status = "okay";
+ pinctrl-0 = <&ao_cec_pins>;
+ pinctrl-names = "default";
+ hdmi-phandle = <&hdmi_tx>;
+};
+
+&hdmi_tx {
+ status = "okay";
+ pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
+ pinctrl-names = "default";
+};
+
+&hdmi_tx_tmds_port {
+ hdmi_tx_tmds_out: endpoint {
+ remote-endpoint = <&hdmi_connector_in>;
+ };
};
&i2c_A {
@@ -82,12 +112,68 @@
linux,rc-map-name = "rc-geekbox";
};
+&pinctrl_aobus {
+ gpio-line-names = "UART TX",
+ "UART RX",
+ "Power Key In",
+ "J9 Header Pin35",
+ "J9 Header Pin16",
+ "J9 Header Pin15",
+ "J9 Header Pin33",
+ "IR In",
+ "HDMI CEC",
+ "SYS LED";
+};
+
+&pinctrl_periphs {
+ gpio-line-names = /* Bank GPIOZ */
+ "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "",
+ "Power OFF",
+ "VCCK Enable",
+ /* Bank GPIOH */
+ "HDMI HPD", "HDMI SDA", "HDMI SCL",
+ "HDMI_5V_EN", "SPDIF",
+ "J9 Header Pin37",
+ "J9 Header Pin30",
+ "J9 Header Pin29",
+ "J9 Header Pin32",
+ "J9 Header Pin31",
+ /* Bank BOOT */
+ "eMMC D0", "eMMC D1", "eMMC D2", "eMMC D3",
+ "eMMC D4", "eMMC D5", "eMMC D6", "eMMC D7",
+ "eMMC Clk", "eMMC Reset", "eMMC CMD",
+ "", "BOOT_MODE", "", "", "eMMC Data Strobe",
+ /* Bank CARD */
+ "SDCard D1", "SDCard D0", "SDCard CLK", "SDCard CMD",
+ "SDCard D3", "SDCard D2", "SDCard Det",
+ /* Bank GPIODV */
+ "", "", "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "", "", "",
+ "I2C A SDA", "I2C A SCK", "I2C B SDA", "I2C B SCK",
+ "VCCK Regulator", "VDDEE Regulator",
+ /* Bank GPIOX */
+ "WIFI SDIO D0", "WIFI SDIO D1", "WIFI SDIO D2",
+ "WIFI SDIO D3", "WIFI SDIO CLK", "WIFI SDIO CMD",
+ "WIFI Power Enable", "WIFI WAKE HOST",
+ "Bluetooth PCM DOUT", "Bluetooth PCM DIN",
+ "Bluetooth PCM SYNC", "Bluetooth PCM CLK",
+ "Bluetooth UART TX", "Bluetooth UART RX",
+ "Bluetooth UART CTS", "Bluetooth UART RTS",
+ "WIFI 32K", "Bluetooth Enable",
+ "Bluetooth WAKE HOST",
+ /* Bank GPIOCLK */
+ "", "J9 Header Pin39",
+ /* GPIO_TEST_N */
+ "";
+};
+
&pwm_AO_ab {
status = "okay";
pinctrl-0 = <&pwm_ao_a_3_pins>, <&pwm_ao_b_pins>;
pinctrl-names = "default";
- clocks = <&clkc CLKID_FCLK_DIV4>;
- clock-names = "clkin0";
+ clocks = <&xtal> , <&xtal>;
+ clock-names = "clkin0", "clkin1" ;
};
&pwm_ef {
@@ -95,7 +181,7 @@
};
&sd_emmc_a {
- brcmf: bcrmf@1 {
+ brcmf: wifi@1 {
reg = <1>;
compatible = "brcm,bcm4329-fmac";
};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts
new file mode 100644
index 000000000000..64c54c92e214
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts
@@ -0,0 +1,244 @@
+/*
+ * Copyright (c) 2017 BayLibre, SAS.
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ * Author: Jerome Brunet <jbrunet@baylibre.com>
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/input/input.h>
+
+#include "meson-gxl-s905x.dtsi"
+
+/ {
+ compatible = "libretech,cc", "amlogic,s905x", "amlogic,meson-gxl";
+ model = "Libre Technology CC";
+
+ aliases {
+ serial0 = &uart_AO;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ cvbs-connector {
+ compatible = "composite-video-connector";
+
+ port {
+ cvbs_connector_in: endpoint {
+ remote-endpoint = <&cvbs_vdac_out>;
+ };
+ };
+ };
+
+ emmc_pwrseq: emmc-pwrseq {
+ compatible = "mmc-pwrseq-emmc";
+ reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>;
+ };
+
+ hdmi-connector {
+ compatible = "hdmi-connector";
+ type = "a";
+
+ port {
+ hdmi_connector_in: endpoint {
+ remote-endpoint = <&hdmi_tx_tmds_out>;
+ };
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ system {
+ label = "librecomputer:system-status";
+ gpios = <&gpio GPIODV_24 GPIO_ACTIVE_HIGH>;
+ default-state = "on";
+ panic-indicator;
+ };
+
+ blue {
+ label = "librecomputer:blue";
+ gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "heartbeat";
+ };
+ };
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x0 0x0 0x80000000>;
+ };
+
+ vcc_3v3: regulator-vcc_3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "VCC_3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ vcc_card: regulator-vcc-card {
+ compatible = "regulator-gpio";
+
+ regulator-name = "VCC_CARD";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpios = <&gpio_ao GPIOAO_3 GPIO_ACTIVE_HIGH>;
+ gpios-states = <0>;
+
+ states = <3300000 0>,
+ <1800000 1>;
+
+ regulator-settling-time-up-us = <200>;
+ regulator-settling-time-down-us = <50000>;
+ };
+
+ vddio_boot: regulator-vddio_boot {
+ compatible = "regulator-fixed";
+ regulator-name = "VDDIO_BOOT";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+};
+
+&cec_AO {
+ status = "okay";
+ pinctrl-0 = <&ao_cec_pins>;
+ pinctrl-names = "default";
+ hdmi-phandle = <&hdmi_tx>;
+};
+
+&cvbs_vdac_port {
+ cvbs_vdac_out: endpoint {
+ remote-endpoint = <&cvbs_connector_in>;
+ };
+};
+
+&ethmac {
+ status = "okay";
+};
+
+&ir {
+ status = "okay";
+ pinctrl-0 = <&remote_input_ao_pins>;
+ pinctrl-names = "default";
+};
+
+&hdmi_tx {
+ status = "okay";
+ pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
+ pinctrl-names = "default";
+};
+
+&hdmi_tx_tmds_port {
+ hdmi_tx_tmds_out: endpoint {
+ remote-endpoint = <&hdmi_connector_in>;
+ };
+};
+
+&pinctrl_aobus {
+ gpio-line-names = "UART TX",
+ "UART RX",
+ "Blue LED",
+ "SDCard Voltage Switch",
+ "7J1 Header Pin5",
+ "7J1 Header Pin3",
+ "7J1 Header Pin12",
+ "IR In",
+ "9J3 Switch HDMI CEC/7J1 Header Pin11",
+ "7J1 Header Pin13";
+};
+
+&pinctrl_periphs {
+ gpio-line-names = /* Bank GPIOZ */
+ "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "",
+ "Eth Link LED", "Eth Activity LED",
+ /* Bank GPIOH */
+ "HDMI HPD", "HDMI SDA", "HDMI SCL",
+ "HDMI_5V_EN", "9J1 Header Pin2",
+ "Analog Audio Mute",
+ "2J3 Header Pin6",
+ "2J3 Header Pin5",
+ "2J3 Header Pin4",
+ "2J3 Header Pin3",
+ /* Bank BOOT */
+ "eMMC D0", "eMMC D1", "eMMC D2", "eMMC D3",
+ "eMMC D4", "eMMC D5", "eMMC D6", "eMMC D7",
+ "eMMC Clk", "eMMC Reset", "eMMC CMD",
+ "ALT BOOT MODE", "", "", "", "eMMC Data Strobe",
+ /* Bank CARD */
+ "SDCard D1", "SDCard D0", "SDCard CLK", "SDCard CMD",
+ "SDCard D3", "SDCard D2", "SDCard Det",
+ /* Bank GPIODV */
+ "", "", "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "", "", "",
+ "Green LED", "VCCK Enable",
+ "7J1 Header Pin27", "7J1 Header Pin28",
+ "VCCK Regulator", "VDDEE Regulator",
+ /* Bank GPIOX */
+ "7J1 Header Pin22", "7J1 Header Pin26",
+ "7J1 Header Pin36", "7J1 Header Pin38",
+ "7J1 Header Pin40", "7J1 Header Pin37",
+ "7J1 Header Pin33", "7J1 Header Pin35",
+ "7J1 Header Pin19", "7J1 Header Pin21",
+ "7J1 Header Pin24", "7J1 Header Pin23",
+ "7J1 Header Pin8", "7J1 Header Pin10",
+ "7J1 Header Pin16", "7J1 Header Pin18",
+ "7J1 Header Pin32", "7J1 Header Pin29",
+ "7J1 Header Pin31",
+ /* Bank GPIOCLK */
+ "7J1 Header Pin7", "",
+ /* GPIO_TEST_N */
+ "7J1 Header Pin15";
+};
+
+/* SD card */
+&sd_emmc_b {
+ status = "okay";
+ pinctrl-0 = <&sdcard_pins>;
+ pinctrl-1 = <&sdcard_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
+
+ bus-width = <4>;
+ cap-sd-highspeed;
+ sd-uhs-sdr12;
+ sd-uhs-sdr25;
+ sd-uhs-sdr50;
+ max-frequency = <100000000>;
+ disable-wp;
+
+ cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
+ cd-inverted;
+
+ vmmc-supply = <&vcc_3v3>;
+ vqmmc-supply = <&vcc_card>;
+};
+
+/* eMMC */
+&sd_emmc_c {
+ status = "okay";
+ pinctrl-0 = <&emmc_pins>;
+ pinctrl-1 = <&emmc_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
+
+ bus-width = <8>;
+ cap-mmc-highspeed;
+ mmc-ddr-3_3v;
+ max-frequency = <50000000>;
+ non-removable;
+ disable-wp;
+
+ mmc-pwrseq = <&emmc_pwrseq>;
+ vmmc-supply = <&vcc_3v3>;
+ vqmmc-supply = <&vddio_boot>;
+};
+
+&uart_AO {
+ status = "okay";
+ pinctrl-0 = <&uart_ao_a_pins>;
+ pinctrl-names = "default";
+};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-nexbox-a95x.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-nexbox-a95x.dts
index 8873c058fad2..1b8f32867aa1 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-nexbox-a95x.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-nexbox-a95x.dts
@@ -140,10 +140,17 @@
};
};
-&uart_AO {
+&cec_AO {
status = "okay";
- pinctrl-0 = <&uart_ao_a_pins>;
+ pinctrl-0 = <&ao_cec_pins>;
pinctrl-names = "default";
+ hdmi-phandle = <&hdmi_tx>;
+};
+
+&cvbs_vdac_port {
+ cvbs_vdac_out: endpoint {
+ remote-endpoint = <&cvbs_connector_in>;
+ };
};
&ethmac {
@@ -152,17 +159,38 @@
phy-handle = <&internal_phy>;
};
+&hdmi_tx {
+ status = "okay";
+ pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
+ pinctrl-names = "default";
+};
+
+&hdmi_tx_tmds_port {
+ hdmi_tx_tmds_out: endpoint {
+ remote-endpoint = <&hdmi_connector_in>;
+ };
+};
+
&ir {
status = "okay";
pinctrl-0 = <&remote_input_ao_pins>;
pinctrl-names = "default";
};
+&pwm_ef {
+ status = "okay";
+ pinctrl-0 = <&pwm_e_pins>;
+ pinctrl-names = "default";
+ clocks = <&clkc CLKID_FCLK_DIV4>;
+ clock-names = "clkin0";
+};
+
/* Wireless SDIO Module */
&sd_emmc_a {
status = "okay";
pinctrl-0 = <&sdio_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&sdio_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
#address-cells = <1>;
#size-cells = <0>;
@@ -183,7 +211,8 @@
&sd_emmc_b {
status = "okay";
pinctrl-0 = <&sdcard_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&sdcard_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
bus-width = <4>;
cap-sd-highspeed;
@@ -201,10 +230,10 @@
&sd_emmc_c {
status = "okay";
pinctrl-0 = <&emmc_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&emmc_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
bus-width = <8>;
- cap-sd-highspeed;
cap-mmc-highspeed;
max-frequency = <200000000>;
non-removable;
@@ -217,28 +246,8 @@
vqmmc-supply = <&vddio_boot>;
};
-&pwm_ef {
- status = "okay";
- pinctrl-0 = <&pwm_e_pins>;
- pinctrl-names = "default";
- clocks = <&clkc CLKID_FCLK_DIV4>;
- clock-names = "clkin0";
-};
-
-&cvbs_vdac_port {
- cvbs_vdac_out: endpoint {
- remote-endpoint = <&cvbs_connector_in>;
- };
-};
-
-&hdmi_tx {
+&uart_AO {
status = "okay";
- pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
+ pinctrl-0 = <&uart_ao_a_pins>;
pinctrl-names = "default";
};
-
-&hdmi_tx_tmds_port {
- hdmi_tx_tmds_out: endpoint {
- remote-endpoint = <&hdmi_connector_in>;
- };
-};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dts
index db31e093f40e..6e2bf858291c 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dts
@@ -58,6 +58,24 @@
};
};
};
+
+ hdmi-connector {
+ compatible = "hdmi-connector";
+ type = "a";
+
+ port {
+ hdmi_connector_in: endpoint {
+ remote-endpoint = <&hdmi_tx_tmds_out>;
+ };
+ };
+ };
+};
+
+&cec_AO {
+ status = "okay";
+ pinctrl-0 = <&ao_cec_pins>;
+ pinctrl-names = "default";
+ hdmi-phandle = <&hdmi_tx>;
};
&cvbs_vdac_port {
@@ -66,6 +84,18 @@
};
};
+&hdmi_tx {
+ status = "okay";
+ pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
+ pinctrl-names = "default";
+};
+
+&hdmi_tx_tmds_port {
+ hdmi_tx_tmds_out: endpoint {
+ remote-endpoint = <&hdmi_connector_in>;
+ };
+};
+
/* This UART is brought out to the DB9 connector */
&uart_AO {
status = "okay";
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi
index f3eea8e89d12..129af9068814 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi
@@ -95,7 +95,8 @@
&sd_emmc_a {
status = "okay";
pinctrl-0 = <&sdio_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&sdio_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
#address-cells = <1>;
#size-cells = <0>;
@@ -116,7 +117,8 @@
&sd_emmc_b {
status = "okay";
pinctrl-0 = <&sdcard_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&sdcard_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
bus-width = <4>;
cap-sd-highspeed;
@@ -134,10 +136,10 @@
&sd_emmc_c {
status = "okay";
pinctrl-0 = <&emmc_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&emmc_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
bus-width = <8>;
- cap-sd-highspeed;
cap-mmc-highspeed;
max-frequency = <200000000>;
non-removable;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x.dtsi
index 0f78d836edaf..3314a0b3dad9 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x.dtsi
@@ -48,7 +48,7 @@
compatible = "amlogic,s905x", "amlogic,meson-gxl";
};
-/* S905X Only has access to its internal PHY */
+/* S905X only has access to its internal PHY */
&ethmac {
phy-mode = "rmii";
phy-handle = <&internal_phy>;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
index d8e096dff10a..d8dd3298b15c 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
@@ -43,6 +43,7 @@
#include "meson-gx.dtsi"
#include <dt-bindings/clock/gxbb-clkc.h>
+#include <dt-bindings/clock/gxbb-aoclkc.h>
#include <dt-bindings/gpio/meson-gxl-gpio.h>
#include <dt-bindings/reset/amlogic,meson-gxbb-reset.h>
@@ -190,9 +191,68 @@
function = "spdif_out_ao";
};
};
+
+ ao_cec_pins: ao_cec {
+ mux {
+ groups = "ao_cec";
+ function = "cec_ao";
+ };
+ };
+
+ ee_cec_pins: ee_cec {
+ mux {
+ groups = "ee_cec";
+ function = "cec_ao";
+ };
+ };
+ };
+};
+
+&cec_AO {
+ clocks = <&clkc_AO CLKID_AO_CEC_32K>;
+ clock-names = "core";
+};
+
+&clkc_AO {
+ compatible = "amlogic,meson-gxl-aoclkc", "amlogic,meson-gx-aoclkc";
+};
+
+&hdmi_tx {
+ compatible = "amlogic,meson-gxl-dw-hdmi", "amlogic,meson-gx-dw-hdmi";
+ resets = <&reset RESET_HDMITX_CAPB3>,
+ <&reset RESET_HDMI_SYSTEM_RESET>,
+ <&reset RESET_HDMI_TX>;
+ reset-names = "hdmitx_apb", "hdmitx", "hdmitx_phy";
+ clocks = <&clkc CLKID_HDMI_PCLK>,
+ <&clkc CLKID_CLK81>,
+ <&clkc CLKID_GCLK_VENCI_INT0>;
+ clock-names = "isfr", "iahb", "venci";
+};
+
+&hiubus {
+ clkc: clock-controller@0 {
+ compatible = "amlogic,gxl-clkc", "amlogic,gxbb-clkc";
+ #clock-cells = <1>;
+ reg = <0x0 0x0 0x0 0x3db>;
};
};
+&i2c_A {
+ clocks = <&clkc CLKID_I2C>;
+};
+
+&i2c_AO {
+ clocks = <&clkc CLKID_AO_I2C>;
+};
+
+&i2c_B {
+ clocks = <&clkc CLKID_I2C>;
+};
+
+&i2c_C {
+ clocks = <&clkc CLKID_I2C>;
+};
+
&periphs {
pinctrl_periphs: pinctrl@4b0 {
compatible = "amlogic,meson-gxl-periphs-pinctrl";
@@ -203,12 +263,12 @@
gpio: bank@4b0 {
reg = <0x0 0x004b0 0x0 0x28>,
<0x0 0x004e8 0x0 0x14>,
- <0x0 0x00120 0x0 0x14>,
+ <0x0 0x00520 0x0 0x14>,
<0x0 0x00430 0x0 0x40>;
reg-names = "mux", "pull", "pull-enable", "gpio";
gpio-controller;
#gpio-cells = <2>;
- gpio-ranges = <&pinctrl_periphs 0 14 101>;
+ gpio-ranges = <&pinctrl_periphs 0 10 101>;
};
emmc_pins: emmc {
@@ -221,6 +281,17 @@
};
};
+ emmc_clk_gate_pins: emmc_clk_gate {
+ mux {
+ groups = "BOOT_8";
+ function = "gpio_periphs";
+ };
+ cfg-pull-down {
+ pins = "BOOT_8";
+ bias-pull-down;
+ };
+ };
+
nor_pins: nor {
mux {
groups = "nor_d",
@@ -231,6 +302,22 @@
};
};
+ spi_pins: spi {
+ mux {
+ groups = "spi_miso",
+ "spi_mosi",
+ "spi_sclk";
+ function = "spi";
+ };
+ };
+
+ spi_ss0_pins: spi-ss0 {
+ mux {
+ groups = "spi_ss0";
+ function = "spi";
+ };
+ };
+
sdcard_pins: sdcard {
mux {
groups = "sdcard_d0",
@@ -243,6 +330,17 @@
};
};
+ sdcard_clk_gate_pins: sdcard_clk_gate {
+ mux {
+ groups = "CARD_2";
+ function = "gpio_periphs";
+ };
+ cfg-pull-down {
+ pins = "CARD_2";
+ bias-pull-down;
+ };
+ };
+
sdio_pins: sdio {
mux {
groups = "sdio_d0",
@@ -255,6 +353,17 @@
};
};
+ sdio_clk_gate_pins: sdio_clk_gate {
+ mux {
+ groups = "GPIOX_4";
+ function = "gpio_periphs";
+ };
+ cfg-pull-down {
+ pins = "GPIOX_4";
+ bias-pull-down;
+ };
+ };
+
sdio_irq_pins: sdio_irq {
mux {
groups = "sdio_irq";
@@ -354,6 +463,20 @@
};
};
+ eth_link_led_pins: eth_link_led {
+ mux {
+ groups = "eth_link_led";
+ function = "eth_led";
+ };
+ };
+
+ eth_act_led_pins: eth_act_led {
+ mux {
+ groups = "eth_act_led";
+ function = "eth_led";
+ };
+ };
+
pwm_a_pins: pwm_a {
mux {
groups = "pwm_a";
@@ -501,30 +624,6 @@
};
};
-&hiubus {
- clkc: clock-controller@0 {
- compatible = "amlogic,gxl-clkc", "amlogic,gxbb-clkc";
- #clock-cells = <1>;
- reg = <0x0 0x0 0x0 0x3db>;
- };
-};
-
-&i2c_A {
- clocks = <&clkc CLKID_I2C>;
-};
-
-&i2c_AO {
- clocks = <&clkc CLKID_AO_I2C>;
-};
-
-&i2c_B {
- clocks = <&clkc CLKID_I2C>;
-};
-
-&i2c_C {
- clocks = <&clkc CLKID_I2C>;
-};
-
&saradc {
compatible = "amlogic,meson-gxl-saradc", "amlogic,meson-saradc";
clocks = <&xtal>,
@@ -537,41 +636,61 @@
&sd_emmc_a {
clocks = <&clkc CLKID_SD_EMMC_A>,
- <&xtal>,
+ <&clkc CLKID_SD_EMMC_A_CLK0>,
<&clkc CLKID_FCLK_DIV2>;
clock-names = "core", "clkin0", "clkin1";
};
&sd_emmc_b {
clocks = <&clkc CLKID_SD_EMMC_B>,
- <&xtal>,
+ <&clkc CLKID_SD_EMMC_B_CLK0>,
<&clkc CLKID_FCLK_DIV2>;
clock-names = "core", "clkin0", "clkin1";
};
&sd_emmc_c {
clocks = <&clkc CLKID_SD_EMMC_C>,
- <&xtal>,
+ <&clkc CLKID_SD_EMMC_C_CLK0>,
<&clkc CLKID_FCLK_DIV2>;
clock-names = "core", "clkin0", "clkin1";
};
+&spicc {
+ clocks = <&clkc CLKID_SPICC>;
+ clock-names = "core";
+ resets = <&reset RESET_PERIPHS_SPICC>;
+ num-cs = <1>;
+};
+
&spifc {
clocks = <&clkc CLKID_SPI>;
};
-&vpu {
- compatible = "amlogic,meson-gxl-vpu", "amlogic,meson-gx-vpu";
+&uart_A {
+ clocks = <&xtal>, <&clkc CLKID_UART0>, <&xtal>;
+ clock-names = "xtal", "core", "baud";
};
-&hdmi_tx {
- compatible = "amlogic,meson-gxl-dw-hdmi", "amlogic,meson-gx-dw-hdmi";
- resets = <&reset RESET_HDMITX_CAPB3>,
- <&reset RESET_HDMI_SYSTEM_RESET>,
- <&reset RESET_HDMI_TX>;
- reset-names = "hdmitx_apb", "hdmitx", "hdmitx_phy";
- clocks = <&clkc CLKID_HDMI_PCLK>,
- <&clkc CLKID_CLK81>,
- <&clkc CLKID_GCLK_VENCI_INT0>;
- clock-names = "isfr", "iahb", "venci";
+&uart_AO {
+ clocks = <&xtal>, <&clkc CLKID_CLK81>, <&xtal>;
+ clock-names = "xtal", "pclk", "baud";
+};
+
+&uart_AO_B {
+ clocks = <&xtal>, <&clkc CLKID_CLK81>, <&xtal>;
+ clock-names = "xtal", "pclk", "baud";
+};
+
+&uart_B {
+ clocks = <&xtal>, <&clkc CLKID_UART1>, <&xtal>;
+ clock-names = "xtal", "core", "baud";
+};
+
+&uart_C {
+ clocks = <&xtal>, <&clkc CLKID_UART2>, <&xtal>;
+ clock-names = "xtal", "core", "baud";
+};
+
+&vpu {
+ compatible = "amlogic,meson-gxl-vpu", "amlogic,meson-gx-vpu";
};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxm-nexbox-a1.dts b/arch/arm64/boot/dts/amlogic/meson-gxm-nexbox-a1.dts
index 11b0bf46a95c..22c697732f66 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxm-nexbox-a1.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxm-nexbox-a1.dts
@@ -113,11 +113,56 @@
};
};
-/* This UART is brought out to the DB9 connector */
-&uart_AO {
+&cec_AO {
status = "okay";
- pinctrl-0 = <&uart_ao_a_pins>;
+ pinctrl-0 = <&ao_cec_pins>;
+ pinctrl-names = "default";
+ hdmi-phandle = <&hdmi_tx>;
+};
+
+&cvbs_vdac_port {
+ cvbs_vdac_out: endpoint {
+ remote-endpoint = <&cvbs_connector_in>;
+ };
+};
+
+&ethmac {
+ status = "okay";
+
+ pinctrl-0 = <&eth_pins>;
pinctrl-names = "default";
+
+ /* Select external PHY by default */
+ phy-handle = <&external_phy>;
+
+ amlogic,tx-delay-ns = <2>;
+
+ snps,reset-gpio = <&gpio GPIOZ_14 0>;
+ snps,reset-delays-us = <0 10000 1000000>;
+ snps,reset-active-low;
+
+ /* External PHY is in RGMII */
+ phy-mode = "rgmii";
+};
+
+&external_mdio {
+ external_phy: ethernet-phy@0 {
+ compatible = "ethernet-phy-id001c.c916", "ethernet-phy-ieee802.3-c22";
+ reg = <0>;
+ max-speed = <1000>;
+ };
+};
+
+&hdmi_tx {
+ status = "okay";
+ pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
+ pinctrl-names = "default";
+};
+
+&hdmi_tx_tmds_port {
+ hdmi_tx_tmds_out: endpoint {
+ remote-endpoint = <&hdmi_connector_in>;
+ };
};
&ir {
@@ -130,7 +175,8 @@
&sd_emmc_b {
status = "okay";
pinctrl-0 = <&sdcard_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&sdcard_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
bus-width = <4>;
cap-sd-highspeed;
@@ -148,10 +194,10 @@
&sd_emmc_c {
status = "okay";
pinctrl-0 = <&emmc_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&emmc_clk_gate_pins>;
+ pinctrl-names = "default", "clk-gate";
bus-width = <8>;
- cap-sd-highspeed;
cap-mmc-highspeed;
max-frequency = <200000000>;
non-removable;
@@ -164,47 +210,8 @@
vqmmc-supply = <&vddio_boot>;
};
-&ethmac {
- status = "okay";
-
- pinctrl-0 = <&eth_pins>;
- pinctrl-names = "default";
-
- /* Select external PHY by default */
- phy-handle = <&external_phy>;
-
- amlogic,tx-delay-ns = <2>;
-
- snps,reset-gpio = <&gpio GPIOZ_14 0>;
- snps,reset-delays-us = <0 10000 1000000>;
- snps,reset-active-low;
-
- /* External PHY is in RGMII */
- phy-mode = "rgmii";
-};
-
-&external_mdio {
- external_phy: ethernet-phy@0 {
- compatible = "ethernet-phy-id001c.c916", "ethernet-phy-ieee802.3-c22";
- reg = <0>;
- max-speed = <1000>;
- };
-};
-
-&cvbs_vdac_port {
- cvbs_vdac_out: endpoint {
- remote-endpoint = <&cvbs_connector_in>;
- };
-};
-
-&hdmi_tx {
+&uart_AO {
status = "okay";
- pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
+ pinctrl-0 = <&uart_ao_a_pins>;
pinctrl-names = "default";
};
-
-&hdmi_tx_tmds_port {
- hdmi_tx_tmds_out: endpoint {
- remote-endpoint = <&hdmi_connector_in>;
- };
-};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxm-rbox-pro.dts b/arch/arm64/boot/dts/amlogic/meson-gxm-rbox-pro.dts
new file mode 100644
index 000000000000..470f72bb863c
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/meson-gxm-rbox-pro.dts
@@ -0,0 +1,239 @@
+/*
+ * Copyright (c) 2016-2017 Andreas Färber
+ *
+ * Based on nexbox-a1:
+ *
+ * Copyright (c) 2016 BayLibre, SAS.
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ *
+ * Copyright (c) 2016 Endless Computers, Inc.
+ * Author: Carlo Caione <carlo@endlessm.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+
+#include "meson-gxm.dtsi"
+
+/ {
+ compatible = "kingnovel,r-box-pro", "amlogic,s912", "amlogic,meson-gxm";
+ model = "R-Box Pro";
+
+ aliases {
+ serial0 = &uart_AO;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x0 0x0 0x80000000>; /* 2 GiB or 3 GiB */
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ blue {
+ label = "rbox-pro:blue:on";
+ gpios = <&gpio_ao GPIOAO_9 GPIO_ACTIVE_HIGH>;
+ default-state = "on";
+ };
+
+ red {
+ label = "rbox-pro:red:standby";
+ gpios = <&gpio GPIODV_28 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ retain-state-suspended;
+ panic-indicator;
+ };
+ };
+
+ vddio_boot: regulator-vddio-boot {
+ compatible = "regulator-fixed";
+ regulator-name = "VDDIO_BOOT";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ vddao_3v3: regulator-vddao-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "VDDAO_3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ vcc_3v3: regulator-vcc-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "VCC_3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ emmc_pwrseq: emmc-pwrseq {
+ compatible = "mmc-pwrseq-emmc";
+ reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>;
+ };
+
+ wifi32k: wifi32k {
+ compatible = "pwm-clock";
+ #clock-cells = <0>;
+ clock-frequency = <32768>;
+ pwms = <&pwm_ef 0 30518 0>; /* PWM_E at 32.768KHz */
+ };
+
+ sdio_pwrseq: sdio-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ reset-gpios = <&gpio GPIOX_6 GPIO_ACTIVE_LOW>;
+ clocks = <&wifi32k>;
+ clock-names = "ext_clock";
+ };
+};
+
+&ethmac {
+ status = "okay";
+
+ pinctrl-0 = <&eth_pins>;
+ pinctrl-names = "default";
+
+ /* Select external PHY by default */
+ phy-handle = <&external_phy>;
+
+ snps,reset-gpio = <&gpio GPIOZ_14 0>;
+ snps,reset-delays-us = <0 10000 1000000>;
+ snps,reset-active-low;
+
+ amlogic,tx-delay-ns = <2>;
+
+ /* External PHY is in RGMII */
+ phy-mode = "rgmii";
+};
+
+&external_mdio {
+ external_phy: ethernet-phy@0 {
+ compatible = "ethernet-phy-id001c.c916", "ethernet-phy-ieee802.3-c22";
+ reg = <0>;
+ max-speed = <1000>;
+ };
+};
+
+&ir {
+ status = "okay";
+ pinctrl-0 = <&remote_input_ao_pins>;
+ pinctrl-names = "default";
+};
+
+&pwm_ef {
+ status = "okay";
+ pinctrl-0 = <&pwm_e_pins>;
+ pinctrl-names = "default";
+ clocks = <&clkc CLKID_FCLK_DIV4>;
+ clock-names = "clkin0";
+};
+
+/* Wireless SDIO Module */
+&sd_emmc_a {
+ status = "okay";
+ pinctrl-0 = <&sdio_pins>;
+ pinctrl-names = "default";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ bus-width = <4>;
+ cap-sd-highspeed;
+ max-frequency = <100000000>;
+
+ non-removable;
+ disable-wp;
+
+ mmc-pwrseq = <&sdio_pwrseq>;
+
+ vmmc-supply = <&vddao_3v3>;
+ vqmmc-supply = <&vddio_boot>;
+
+ brcmf: brcmf@1 {
+ reg = <1>;
+ compatible = "brcm,bcm4329-fmac";
+ };
+};
+
+/* SD card */
+&sd_emmc_b {
+ status = "okay";
+ pinctrl-0 = <&sdcard_pins>;
+ pinctrl-names = "default";
+
+ bus-width = <4>;
+ cap-sd-highspeed;
+ max-frequency = <100000000>;
+ disable-wp;
+
+ cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
+ cd-inverted;
+
+ vmmc-supply = <&vddao_3v3>;
+ vqmmc-supply = <&vddio_boot>;
+};
+
+/* eMMC */
+&sd_emmc_c {
+ status = "okay";
+ pinctrl-0 = <&emmc_pins>;
+ pinctrl-names = "default";
+
+ bus-width = <8>;
+ cap-mmc-highspeed;
+ max-frequency = <200000000>;
+ non-removable;
+ disable-wp;
+ mmc-ddr-1_8v;
+ mmc-hs200-1_8v;
+
+ mmc-pwrseq = <&emmc_pwrseq>;
+ vmmc-supply = <&vcc_3v3>;
+ vqmmc-supply = <&vddio_boot>;
+};
+
+&uart_AO {
+ status = "okay";
+ pinctrl-0 = <&uart_ao_a_pins>;
+ pinctrl-names = "default";
+};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxm.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxm.dtsi
index fe451cce93e7..19a798d2ae2f 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxm.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxm.dtsi
@@ -117,6 +117,10 @@
};
};
+&clkc_AO {
+ compatible = "amlogic,meson-gxm-aoclkc", "amlogic,meson-gx-aoclkc";
+};
+
&saradc {
compatible = "amlogic,meson-gxm-saradc", "amlogic,meson-saradc";
};
diff --git a/arch/arm64/boot/dts/apm/apm-shadowcat.dtsi b/arch/arm64/boot/dts/apm/apm-shadowcat.dtsi
index 72720e9132a1..c9ffffb96e43 100644
--- a/arch/arm64/boot/dts/apm/apm-shadowcat.dtsi
+++ b/arch/arm64/boot/dts/apm/apm-shadowcat.dtsi
@@ -626,6 +626,7 @@
0x43000000 0xe0 0x00000000 0xe0 0x00000000 0x20 0x00000000>; /* mem */
dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0x0 0x0 0x0 0x7>;
interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0x0 0x0 0x10 0x4
0x0 0x0 0x0 0x2 &gic 0x0 0x0 0x0 0x11 0x4
@@ -651,6 +652,7 @@
0x43000000 0xb0 0x00000000 0xb0 0x00000000 0x10 0x00000000>; /* mem */
dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0x0 0x0 0x0 0x7>;
interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0x0 0x0 0x16 0x4
0x0 0x0 0x0 0x2 &gic 0x0 0x0 0x0 0x17 0x4
diff --git a/arch/arm64/boot/dts/apm/apm-storm.dtsi b/arch/arm64/boot/dts/apm/apm-storm.dtsi
index 63be8e51eaa8..c09a36fed917 100644
--- a/arch/arm64/boot/dts/apm/apm-storm.dtsi
+++ b/arch/arm64/boot/dts/apm/apm-storm.dtsi
@@ -626,6 +626,7 @@
0x43000000 0xf0 0x00000000 0xf0 0x00000000 0x10 0x00000000>; /* mem */
dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0x0 0x0 0x0 0x7>;
interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0xc2 0x4
0x0 0x0 0x0 0x2 &gic 0x0 0xc3 0x4
@@ -651,6 +652,7 @@
0x43000000 0xd8 0x00000000 0xd8 0x00000000 0x08 0x00000000>; /* mem */
dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0x0 0x0 0x0 0x7>;
interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0xc8 0x4
0x0 0x0 0x0 0x2 &gic 0x0 0xc9 0x4
@@ -676,6 +678,7 @@
0x43000000 0x94 0x00000000 0x94 0x00000000 0x04 0x00000000>; /* mem */
dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0x0 0x0 0x0 0x7>;
interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0xce 0x4
0x0 0x0 0x0 0x2 &gic 0x0 0xcf 0x4
@@ -701,6 +704,7 @@
0x43000000 0xb0 0x00000000 0xb0 0x00000000 0x10 0x00000000>; /* mem */
dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0x0 0x0 0x0 0x7>;
interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0xd4 0x4
0x0 0x0 0x0 0x2 &gic 0x0 0xd5 0x4
@@ -726,6 +730,7 @@
0x43000000 0xc8 0x00000000 0xc8 0x00000000 0x08 0x00000000>; /* mem */
dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0x0 0x0 0x0 0x7>;
interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0xda 0x4
0x0 0x0 0x0 0x2 &gic 0x0 0xdb 0x4
diff --git a/arch/arm64/boot/dts/arm/foundation-v8.dtsi b/arch/arm64/boot/dts/arm/foundation-v8.dtsi
index 7cfa8e414e7f..8ecdd4331980 100644
--- a/arch/arm64/boot/dts/arm/foundation-v8.dtsi
+++ b/arch/arm64/boot/dts/arm/foundation-v8.dtsi
@@ -226,7 +226,7 @@
clock-names = "uartclk", "apb_pclk";
};
- virtio_block@0130000 {
+ virtio-block@0130000 {
compatible = "virtio,mmio";
reg = <0x130000 0x200>;
interrupts = <42>;
diff --git a/arch/arm64/boot/dts/arm/juno-base.dtsi b/arch/arm64/boot/dts/arm/juno-base.dtsi
index bfe7d683a42e..fbafe62d6b22 100644
--- a/arch/arm64/boot/dts/arm/juno-base.dtsi
+++ b/arch/arm64/boot/dts/arm/juno-base.dtsi
@@ -53,7 +53,6 @@
#global-interrupts = <1>;
dma-coherent;
power-domains = <&scpi_devpd 0>;
- status = "disabled";
};
gic: interrupt-controller@2c010000 {
@@ -202,6 +201,15 @@
};
};
+ cpu_debug0: cpu-debug@22010000 {
+ compatible = "arm,coresight-cpu-debug", "arm,primecell";
+ reg = <0x0 0x22010000 0x0 0x1000>;
+
+ clocks = <&soc_smc50mhz>;
+ clock-names = "apb_pclk";
+ power-domains = <&scpi_devpd 0>;
+ };
+
etm0: etm@22040000 {
compatible = "arm,coresight-etm4x", "arm,primecell";
reg = <0 0x22040000 0 0x1000>;
@@ -252,6 +260,15 @@
};
};
+ cpu_debug1: cpu-debug@22110000 {
+ compatible = "arm,coresight-cpu-debug", "arm,primecell";
+ reg = <0x0 0x22110000 0x0 0x1000>;
+
+ clocks = <&soc_smc50mhz>;
+ clock-names = "apb_pclk";
+ power-domains = <&scpi_devpd 0>;
+ };
+
etm1: etm@22140000 {
compatible = "arm,coresight-etm4x", "arm,primecell";
reg = <0 0x22140000 0 0x1000>;
@@ -266,6 +283,15 @@
};
};
+ cpu_debug2: cpu-debug@23010000 {
+ compatible = "arm,coresight-cpu-debug", "arm,primecell";
+ reg = <0x0 0x23010000 0x0 0x1000>;
+
+ clocks = <&soc_smc50mhz>;
+ clock-names = "apb_pclk";
+ power-domains = <&scpi_devpd 0>;
+ };
+
etm2: etm@23040000 {
compatible = "arm,coresight-etm4x", "arm,primecell";
reg = <0 0x23040000 0 0x1000>;
@@ -330,6 +356,15 @@
};
};
+ cpu_debug3: cpu-debug@23110000 {
+ compatible = "arm,coresight-cpu-debug", "arm,primecell";
+ reg = <0x0 0x23110000 0x0 0x1000>;
+
+ clocks = <&soc_smc50mhz>;
+ clock-names = "apb_pclk";
+ power-domains = <&scpi_devpd 0>;
+ };
+
etm3: etm@23140000 {
compatible = "arm,coresight-etm4x", "arm,primecell";
reg = <0 0x23140000 0 0x1000>;
@@ -344,6 +379,15 @@
};
};
+ cpu_debug4: cpu-debug@23210000 {
+ compatible = "arm,coresight-cpu-debug", "arm,primecell";
+ reg = <0x0 0x23210000 0x0 0x1000>;
+
+ clocks = <&soc_smc50mhz>;
+ clock-names = "apb_pclk";
+ power-domains = <&scpi_devpd 0>;
+ };
+
etm4: etm@23240000 {
compatible = "arm,coresight-etm4x", "arm,primecell";
reg = <0 0x23240000 0 0x1000>;
@@ -358,6 +402,15 @@
};
};
+ cpu_debug5: cpu-debug@23310000 {
+ compatible = "arm,coresight-cpu-debug", "arm,primecell";
+ reg = <0x0 0x23310000 0x0 0x1000>;
+
+ clocks = <&soc_smc50mhz>;
+ clock-names = "apb_pclk";
+ power-domains = <&scpi_devpd 0>;
+ };
+
etm5: etm@23340000 {
compatible = "arm,coresight-etm4x", "arm,primecell";
reg = <0 0x23340000 0 0x1000>;
@@ -373,7 +426,7 @@
};
replicator@20120000 {
- compatible = "qcom,coresight-replicator1x", "arm,primecell";
+ compatible = "arm,coresight-dynamic-replicator", "arm,primecell";
reg = <0 0x20120000 0 0x1000>;
clocks = <&soc_smc50mhz>;
@@ -546,7 +599,6 @@
<GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
#iommu-cells = <1>;
#global-interrupts = <1>;
- status = "disabled";
};
smmu_hdlcd0: iommu@7fb20000 {
@@ -556,7 +608,6 @@
<GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>;
#iommu-cells = <1>;
#global-interrupts = <1>;
- status = "disabled";
};
smmu_usb: iommu@7fb30000 {
@@ -567,7 +618,6 @@
#iommu-cells = <1>;
#global-interrupts = <1>;
dma-coherent;
- status = "disabled";
};
dma@7ff00000 {
diff --git a/arch/arm64/boot/dts/arm/juno-r1.dts b/arch/arm64/boot/dts/arm/juno-r1.dts
index 0e8943ab94d7..aed6389468c4 100644
--- a/arch/arm64/boot/dts/arm/juno-r1.dts
+++ b/arch/arm64/boot/dts/arm/juno-r1.dts
@@ -281,3 +281,27 @@
&stm_out_port {
remote-endpoint = <&csys1_funnel_in_port0>;
};
+
+&cpu_debug0 {
+ cpu = <&A57_0>;
+};
+
+&cpu_debug1 {
+ cpu = <&A57_1>;
+};
+
+&cpu_debug2 {
+ cpu = <&A53_0>;
+};
+
+&cpu_debug3 {
+ cpu = <&A53_1>;
+};
+
+&cpu_debug4 {
+ cpu = <&A53_2>;
+};
+
+&cpu_debug5 {
+ cpu = <&A53_3>;
+};
diff --git a/arch/arm64/boot/dts/arm/juno-r2.dts b/arch/arm64/boot/dts/arm/juno-r2.dts
index 405e2fba025b..b39b6d6ec5aa 100644
--- a/arch/arm64/boot/dts/arm/juno-r2.dts
+++ b/arch/arm64/boot/dts/arm/juno-r2.dts
@@ -281,3 +281,27 @@
&stm_out_port {
remote-endpoint = <&csys1_funnel_in_port0>;
};
+
+&cpu_debug0 {
+ cpu = <&A72_0>;
+};
+
+&cpu_debug1 {
+ cpu = <&A72_1>;
+};
+
+&cpu_debug2 {
+ cpu = <&A53_0>;
+};
+
+&cpu_debug3 {
+ cpu = <&A53_1>;
+};
+
+&cpu_debug4 {
+ cpu = <&A53_2>;
+};
+
+&cpu_debug5 {
+ cpu = <&A53_3>;
+};
diff --git a/arch/arm64/boot/dts/arm/juno.dts b/arch/arm64/boot/dts/arm/juno.dts
index 0220494c9b80..c9236c4b967d 100644
--- a/arch/arm64/boot/dts/arm/juno.dts
+++ b/arch/arm64/boot/dts/arm/juno.dts
@@ -268,3 +268,27 @@
};
};
};
+
+&cpu_debug0 {
+ cpu = <&A57_0>;
+};
+
+&cpu_debug1 {
+ cpu = <&A57_1>;
+};
+
+&cpu_debug2 {
+ cpu = <&A53_0>;
+};
+
+&cpu_debug3 {
+ cpu = <&A53_1>;
+};
+
+&cpu_debug4 {
+ cpu = <&A53_2>;
+};
+
+&cpu_debug5 {
+ cpu = <&A53_3>;
+};
diff --git a/arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi b/arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi
index 161ac98418a3..528875c75598 100644
--- a/arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi
+++ b/arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi
@@ -219,7 +219,7 @@
};
};
- virtio_block@0130000 {
+ virtio-block@0130000 {
compatible = "virtio,mmio";
reg = <0x130000 0x200>;
interrupts = <42>;
diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile
index bfa8f8e4c5af..3eaef3895d66 100644
--- a/arch/arm64/boot/dts/broadcom/Makefile
+++ b/arch/arm64/boot/dts/broadcom/Makefile
@@ -1,6 +1,7 @@
dtb-$(CONFIG_ARCH_BCM2835) += bcm2837-rpi-3-b.dtb
-dtb-$(CONFIG_ARCH_BCM_IPROC) += ns2-svk.dtb ns2-xmc.dtb
+dts-dirs += northstar2
+dts-dirs += stingray
always := $(dtb-y)
subdir-y := $(dts-dirs)
clean-files := *.dtb
diff --git a/arch/arm64/boot/dts/broadcom/bcm2835-rpi.dtsi b/arch/arm64/boot/dts/broadcom/bcm2835-rpi.dtsi
deleted file mode 120000
index 3937b77cb310..000000000000
--- a/arch/arm64/boot/dts/broadcom/bcm2835-rpi.dtsi
+++ /dev/null
@@ -1 +0,0 @@
-../../../../arm/boot/dts/bcm2835-rpi.dtsi \ No newline at end of file
diff --git a/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts b/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts
index c309633a1e87..699d340a3437 100644
--- a/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts
+++ b/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts
@@ -1,24 +1 @@
-/dts-v1/;
-#include "bcm2837.dtsi"
-#include "bcm2835-rpi.dtsi"
-#include "bcm283x-rpi-smsc9514.dtsi"
-#include "bcm283x-rpi-usb-host.dtsi"
-
-/ {
- compatible = "raspberrypi,3-model-b", "brcm,bcm2837";
- model = "Raspberry Pi 3 Model B";
-
- memory {
- reg = <0 0x40000000>;
- };
-
- leds {
- act {
- gpios = <&gpio 47 0>;
- };
- };
-};
-
-&uart1 {
- status = "okay";
-};
+#include "arm/bcm2837-rpi-3-b.dts"
diff --git a/arch/arm64/boot/dts/broadcom/bcm283x-rpi-smsc9514.dtsi b/arch/arm64/boot/dts/broadcom/bcm283x-rpi-smsc9514.dtsi
deleted file mode 120000
index dca7c057d5a5..000000000000
--- a/arch/arm64/boot/dts/broadcom/bcm283x-rpi-smsc9514.dtsi
+++ /dev/null
@@ -1 +0,0 @@
-../../../../arm/boot/dts/bcm283x-rpi-smsc9514.dtsi \ No newline at end of file
diff --git a/arch/arm64/boot/dts/broadcom/bcm283x-rpi-usb-host.dtsi b/arch/arm64/boot/dts/broadcom/bcm283x-rpi-usb-host.dtsi
deleted file mode 120000
index cbeebe312ff8..000000000000
--- a/arch/arm64/boot/dts/broadcom/bcm283x-rpi-usb-host.dtsi
+++ /dev/null
@@ -1 +0,0 @@
-../../../../arm/boot/dts/bcm283x-rpi-usb-host.dtsi \ No newline at end of file
diff --git a/arch/arm64/boot/dts/broadcom/bcm283x.dtsi b/arch/arm64/boot/dts/broadcom/bcm283x.dtsi
deleted file mode 120000
index 5f54e4cab99b..000000000000
--- a/arch/arm64/boot/dts/broadcom/bcm283x.dtsi
+++ /dev/null
@@ -1 +0,0 @@
-../../../../arm/boot/dts/bcm283x.dtsi \ No newline at end of file
diff --git a/arch/arm64/boot/dts/broadcom/northstar2/Makefile b/arch/arm64/boot/dts/broadcom/northstar2/Makefile
new file mode 100644
index 000000000000..e01a1485b813
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/northstar2/Makefile
@@ -0,0 +1,6 @@
+dtb-$(CONFIG_ARCH_BCM_IPROC) += ns2-svk.dtb
+dtb-$(CONFIG_ARCH_BCM_IPROC) += ns2-xmc.dtb
+
+always := $(dtb-y)
+subdir-y := $(dts-dirs)
+clean-files := *.dtb
diff --git a/arch/arm64/boot/dts/broadcom/ns2-clock.dtsi b/arch/arm64/boot/dts/broadcom/northstar2/ns2-clock.dtsi
index 99009fdf10a4..99009fdf10a4 100644
--- a/arch/arm64/boot/dts/broadcom/ns2-clock.dtsi
+++ b/arch/arm64/boot/dts/broadcom/northstar2/ns2-clock.dtsi
diff --git a/arch/arm64/boot/dts/broadcom/ns2-svk.dts b/arch/arm64/boot/dts/broadcom/northstar2/ns2-svk.dts
index ec19fbf928a1..ec19fbf928a1 100644
--- a/arch/arm64/boot/dts/broadcom/ns2-svk.dts
+++ b/arch/arm64/boot/dts/broadcom/northstar2/ns2-svk.dts
diff --git a/arch/arm64/boot/dts/broadcom/ns2-xmc.dts b/arch/arm64/boot/dts/broadcom/northstar2/ns2-xmc.dts
index ab4ae1a32fab..ab4ae1a32fab 100644
--- a/arch/arm64/boot/dts/broadcom/ns2-xmc.dts
+++ b/arch/arm64/boot/dts/broadcom/northstar2/ns2-xmc.dts
diff --git a/arch/arm64/boot/dts/broadcom/ns2.dtsi b/arch/arm64/boot/dts/broadcom/northstar2/ns2.dtsi
index 35a309ae3ed8..35c8457e3d1f 100644
--- a/arch/arm64/boot/dts/broadcom/ns2.dtsi
+++ b/arch/arm64/boot/dts/broadcom/northstar2/ns2.dtsi
@@ -460,6 +460,20 @@
};
};
+ usbdrd_phy: phy@66000960 {
+ #phy-cells = <0>;
+ compatible = "brcm,ns2-drd-phy";
+ reg = <0x66000960 0x24>,
+ <0x67012800 0x4>,
+ <0x6501d148 0x4>,
+ <0x664d0700 0x4>;
+ reg-names = "icfg", "rst-ctrl",
+ "crmu-ctrl", "usb2-strap";
+ id-gpios = <&gpio_g 30 0>;
+ vbus-gpios = <&gpio_g 31 0>;
+ status = "disabled";
+ };
+
pwm: pwm@66010000 {
compatible = "brcm,iproc-pwm";
reg = <0x66010000 0x28>;
diff --git a/arch/arm64/boot/dts/broadcom/stingray/Makefile b/arch/arm64/boot/dts/broadcom/stingray/Makefile
new file mode 100644
index 000000000000..f70028edad63
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/stingray/Makefile
@@ -0,0 +1,6 @@
+dtb-$(CONFIG_ARCH_BCM_IPROC) += bcm958742k.dtb
+dtb-$(CONFIG_ARCH_BCM_IPROC) += bcm958742t.dtb
+
+always := $(dtb-y)
+subdir-y := $(dts-dirs)
+clean-files := *.dtb
diff --git a/arch/arm64/boot/dts/broadcom/stingray/bcm958742-base.dtsi b/arch/arm64/boot/dts/broadcom/stingray/bcm958742-base.dtsi
new file mode 100644
index 000000000000..8862ec907fd8
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/stingray/bcm958742-base.dtsi
@@ -0,0 +1,209 @@
+/*
+ * BSD LICENSE
+ *
+ * Copyright(c) 2016-2017 Broadcom. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Broadcom nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "stingray.dtsi"
+
+/ {
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ aliases {
+ serial0 = &uart1;
+ serial1 = &uart0;
+ serial2 = &uart2;
+ serial3 = &uart3;
+ };
+
+ sdio0_vddo_ctrl_reg: sdio0_vddo_ctrl {
+ compatible = "regulator-gpio";
+ regulator-name = "sdio0_vddo_ctrl_reg";
+ regulator-type = "voltage";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ gpios = <&pca9505 18 0>;
+ states = <3300000 0x0
+ 1800000 0x1>;
+ };
+
+ sdio1_vddo_ctrl_reg: sdio1_vddo_ctrl {
+ compatible = "regulator-gpio";
+ regulator-name = "sdio1_vddo_ctrl_reg";
+ regulator-type = "voltage";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ gpios = <&pca9505 19 0>;
+ states = <3300000 0x0
+ 1800000 0x1>;
+ };
+};
+
+&memory { /* Default DRAM banks */
+ reg = <0x00000000 0x80000000 0x0 0x80000000>, /* 2G @ 2G */
+ <0x00000008 0x80000000 0x1 0x80000000>; /* 6G @ 34G */
+};
+
+&sata0 {
+ status = "okay";
+};
+
+&sata_phy0{
+ status = "okay";
+};
+
+&sata1 {
+ status = "okay";
+};
+
+&sata_phy1{
+ status = "okay";
+};
+
+&sata2 {
+ status = "okay";
+};
+
+&sata_phy2{
+ status = "okay";
+};
+
+&sata3 {
+ status = "okay";
+};
+
+&sata_phy3{
+ status = "okay";
+};
+
+&sata4 {
+ status = "okay";
+};
+
+&sata_phy4{
+ status = "okay";
+};
+
+&sata5 {
+ status = "okay";
+};
+
+&sata_phy5{
+ status = "okay";
+};
+
+&sata6 {
+ status = "okay";
+};
+
+&sata_phy6{
+ status = "okay";
+};
+
+&sata7 {
+ status = "okay";
+};
+
+&sata_phy7{
+ status = "okay";
+};
+
+&mdio_mux_iproc {
+ mdio@10 {
+ gphy0: eth-phy@10 {
+ reg = <0x10>;
+ };
+ };
+};
+
+&uart1 {
+ status = "okay";
+};
+
+&pwm {
+ status = "okay";
+};
+
+&i2c0 {
+ status = "okay";
+
+ pca9505: pca9505@20 {
+ compatible = "nxp,pca9505";
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0x20>;
+ };
+};
+
+&i2c1 {
+ status = "okay";
+
+ pcf8574: pcf8574@20 {
+ compatible = "nxp,pcf8574a";
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0x27>;
+ };
+};
+
+&enet {
+ phy-mode = "rgmii-id";
+ phy-handle = <&gphy0>;
+ status = "okay";
+};
+
+&nand {
+ status = "ok";
+ nandcs@0 {
+ compatible = "brcm,nandcs";
+ reg = <0>;
+ nand-ecc-mode = "hw";
+ nand-ecc-strength = <8>;
+ nand-ecc-step-size = <512>;
+ nand-bus-width = <16>;
+ brcm,nand-oob-sector-size = <16>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ };
+};
+
+&sdio0 {
+ vqmmc-supply = <&sdio0_vddo_ctrl_reg>;
+ non-removable;
+ full-pwr-cycle;
+ status = "okay";
+};
+
+&sdio1 {
+ vqmmc-supply = <&sdio1_vddo_ctrl_reg>;
+ full-pwr-cycle;
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/broadcom/stingray/bcm958742k.dts b/arch/arm64/boot/dts/broadcom/stingray/bcm958742k.dts
new file mode 100644
index 000000000000..eb6f08cdbd79
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/stingray/bcm958742k.dts
@@ -0,0 +1,82 @@
+/*
+ * BSD LICENSE
+ *
+ * Copyright(c) 2016-2017 Broadcom. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Broadcom nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/dts-v1/;
+
+#include "bcm958742-base.dtsi"
+
+/ {
+ compatible = "brcm,bcm958742k", "brcm,stingray";
+ model = "Stingray Combo SVK (BCM958742K)";
+};
+
+&gphy0 {
+ enet-phy-lane-swap;
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&uart3 {
+ status = "okay";
+};
+
+&ssp0 {
+ pinctrl-0 = <&spi0_pins>;
+ pinctrl-names = "default";
+ cs-gpios = <&gpio_hsls 34 0>;
+ status = "okay";
+
+ spi-flash@0 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <20000000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ };
+};
+
+&ssp1 {
+ pinctrl-0 = <&spi1_pins>;
+ pinctrl-names = "default";
+ cs-gpios = <&gpio_hsls 96 0>;
+ status = "okay";
+
+ spi-flash@0 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <20000000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ };
+};
diff --git a/arch/arm64/boot/dts/broadcom/stingray/bcm958742t.dts b/arch/arm64/boot/dts/broadcom/stingray/bcm958742t.dts
new file mode 100644
index 000000000000..5084b037320f
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/stingray/bcm958742t.dts
@@ -0,0 +1,44 @@
+/*
+ * BSD LICENSE
+ *
+ * Copyright(c) 2017 Broadcom. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Broadcom nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/dts-v1/;
+
+#include "bcm958742-base.dtsi"
+
+/ {
+ compatible = "brcm,bcm958742t", "brcm,stingray";
+ model = "Stingray SST100 (BCM958742T)";
+};
+
+&gphy0 {
+ enet-phy-lane-swap;
+};
diff --git a/arch/arm64/boot/dts/broadcom/stingray/stingray-clock.dtsi b/arch/arm64/boot/dts/broadcom/stingray/stingray-clock.dtsi
new file mode 100644
index 000000000000..cbc43376e25e
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/stingray/stingray-clock.dtsi
@@ -0,0 +1,170 @@
+/*
+ * BSD LICENSE
+ *
+ * Copyright(c) 2016-2017 Broadcom. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Broadcom nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <dt-bindings/clock/bcm-sr.h>
+
+ osc: oscillator {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <50000000>;
+ };
+
+ crmu_ref25m: crmu_ref25m {
+ #clock-cells = <0>;
+ compatible = "fixed-factor-clock";
+ clocks = <&osc>;
+ clock-div = <2>;
+ clock-mult = <1>;
+ };
+
+ genpll0: genpll0@0001d104 {
+ #clock-cells = <1>;
+ compatible = "brcm,sr-genpll0";
+ reg = <0x0001d104 0x32>,
+ <0x0001c854 0x4>;
+ clocks = <&osc>;
+ clock-output-names = "genpll0", "clk_125", "clk_scr",
+ "clk_250", "clk_pcie_axi",
+ "clk_paxc_axi_x2",
+ "clk_paxc_axi";
+ };
+
+ genpll3: genpll3@0001d1e0 {
+ #clock-cells = <1>;
+ compatible = "brcm,sr-genpll3";
+ reg = <0x0001d1e0 0x32>,
+ <0x0001c854 0x4>;
+ clocks = <&osc>;
+ clock-output-names = "genpll3", "clk_hsls",
+ "clk_sdio";
+ };
+
+ genpll4: genpll4@0001d214 {
+ #clock-cells = <1>;
+ compatible = "brcm,sr-genpll4";
+ reg = <0x0001d214 0x32>,
+ <0x0001c854 0x4>;
+ clocks = <&osc>;
+ clock-output-names = "genpll4", "clk_ccn",
+ "clk_tpiu_pll", "noc_clk",
+ "pll_chclk_fs4",
+ "clk_bridge_fscpu";
+ };
+
+ genpll5: genpll5@0001d248 {
+ #clock-cells = <1>;
+ compatible = "brcm,sr-genpll5";
+ reg = <0x0001d248 0x32>,
+ <0x0001c870 0x4>;
+ clocks = <&osc>;
+ clock-output-names = "genpll5", "fs4_hf_clk",
+ "crypto_ae_clk", "raid_ae_clk";
+ };
+
+ lcpll0: lcpll0@0001d0c4 {
+ #clock-cells = <1>;
+ compatible = "brcm,sr-lcpll0";
+ reg = <0x0001d0c4 0x3c>,
+ <0x0001c870 0x4>;
+ clocks = <&osc>;
+ clock-output-names = "lcpll0", "clk_sata_refp",
+ "clk_sata_refn", "clk_sata_350",
+ "clk_sata_500";
+ };
+
+ lcpll1: lcpll1@0001d138 {
+ #clock-cells = <1>;
+ compatible = "brcm,sr-lcpll1";
+ reg = <0x0001d138 0x3c>,
+ <0x0001c870 0x4>;
+ clocks = <&osc>;
+ clock-output-names = "lcpll1", "clk_wanpn",
+ "clk_usb_ref",
+ "timesync_evt_clk";
+ };
+
+ hsls_clk: hsls_clk {
+ #clock-cells = <0>;
+ compatible = "fixed-factor-clock";
+ clocks = <&genpll3 1>;
+ clock-div = <1>;
+ clock-mult = <1>;
+ };
+
+ hsls_div2_clk: hsls_div2_clk {
+ #clock-cells = <0>;
+ compatible = "fixed-factor-clock";
+ clocks = <&genpll3 BCM_SR_GENPLL3_HSLS_CLK>;
+ clock-div = <2>;
+ clock-mult = <1>;
+
+ };
+
+ hsls_div4_clk: hsls_div4_clk {
+ #clock-cells = <0>;
+ compatible = "fixed-factor-clock";
+ clocks = <&genpll3 BCM_SR_GENPLL3_HSLS_CLK>;
+ clock-div = <4>;
+ clock-mult = <1>;
+ };
+
+ hsls_25m_clk: hsls_25m_clk {
+ #clock-cells = <0>;
+ compatible = "fixed-factor-clock";
+ clocks = <&crmu_ref25m>;
+ clock-div = <1>;
+ clock-mult = <1>;
+ };
+
+ hsls_25m_div2_clk: hsls_25m_div2_clk {
+ #clock-cells = <0>;
+ compatible = "fixed-factor-clock";
+ clocks = <&hsls_25m_clk>;
+ clock-div = <2>;
+ clock-mult = <1>;
+ };
+
+ sdio0_clk: sdio0_clk {
+ #clock-cells = <0>;
+ compatible = "fixed-factor-clock";
+ clocks = <&genpll3 BCM_SR_GENPLL3_SDIO_CLK>;
+ clock-div = <1>;
+ clock-mult = <1>;
+ };
+
+ sdio1_clk: sdio1_clk {
+ #clock-cells = <0>;
+ compatible = "fixed-factor-clock";
+ clocks = <&genpll3 BCM_SR_GENPLL3_SDIO_CLK>;
+ clock-div = <1>;
+ clock-mult = <1>;
+ };
diff --git a/arch/arm64/boot/dts/broadcom/stingray/stingray-fs4.dtsi b/arch/arm64/boot/dts/broadcom/stingray/stingray-fs4.dtsi
new file mode 100644
index 000000000000..8bf1dc6b46ca
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/stingray/stingray-fs4.dtsi
@@ -0,0 +1,118 @@
+/*
+ * BSD LICENSE
+ *
+ * Copyright(c) 2016-2017 Broadcom. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Broadcom nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+ fs4: fs4 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x0 0x67000000 0x00800000>;
+
+ crypto_mbox: crypto_mbox@00000000 {
+ compatible = "brcm,iproc-flexrm-mbox";
+ reg = <0x00000000 0x200000>;
+ msi-parent = <&gic_its 0x4100>;
+ #mbox-cells = <3>;
+ dma-coherent;
+ };
+
+ raid_mbox: raid_mbox@00400000 {
+ compatible = "brcm,iproc-flexrm-mbox";
+ reg = <0x00400000 0x200000>;
+ dma-coherent;
+ msi-parent = <&gic_its 0x4300>;
+ #mbox-cells = <3>;
+ };
+
+ raid0: raid@0 {
+ compatible = "brcm,iproc-sba-v2";
+ mboxes = <&raid_mbox 0 0x1 0xff00>,
+ <&raid_mbox 1 0x1 0xff00>,
+ <&raid_mbox 2 0x1 0xff00>,
+ <&raid_mbox 3 0x1 0xff00>;
+ };
+
+ raid1: raid@1 {
+ compatible = "brcm,iproc-sba-v2";
+ mboxes = <&raid_mbox 4 0x1 0xff00>,
+ <&raid_mbox 5 0x1 0xff00>,
+ <&raid_mbox 6 0x1 0xff00>,
+ <&raid_mbox 7 0x1 0xff00>;
+ };
+
+ raid2: raid@2 {
+ compatible = "brcm,iproc-sba-v2";
+ mboxes = <&raid_mbox 8 0x1 0xff00>,
+ <&raid_mbox 9 0x1 0xff00>,
+ <&raid_mbox 10 0x1 0xff00>,
+ <&raid_mbox 11 0x1 0xff00>;
+ };
+
+ raid3: raid@3 {
+ compatible = "brcm,iproc-sba-v2";
+ mboxes = <&raid_mbox 12 0x1 0xff00>,
+ <&raid_mbox 13 0x1 0xff00>,
+ <&raid_mbox 14 0x1 0xff00>,
+ <&raid_mbox 15 0x1 0xff00>;
+ };
+
+ raid4: raid@4 {
+ compatible = "brcm,iproc-sba-v2";
+ mboxes = <&raid_mbox 16 0x1 0xff00>,
+ <&raid_mbox 17 0x1 0xff00>,
+ <&raid_mbox 18 0x1 0xff00>,
+ <&raid_mbox 19 0x1 0xff00>;
+ };
+
+ raid5: raid@5 {
+ compatible = "brcm,iproc-sba-v2";
+ mboxes = <&raid_mbox 20 0x1 0xff00>,
+ <&raid_mbox 21 0x1 0xff00>,
+ <&raid_mbox 22 0x1 0xff00>,
+ <&raid_mbox 23 0x1 0xff00>;
+ };
+
+ raid6: raid@6 {
+ compatible = "brcm,iproc-sba-v2";
+ mboxes = <&raid_mbox 24 0x1 0xff00>,
+ <&raid_mbox 25 0x1 0xff00>,
+ <&raid_mbox 26 0x1 0xff00>,
+ <&raid_mbox 27 0x1 0xff00>;
+ };
+
+ raid7: raid@7 {
+ compatible = "brcm,iproc-sba-v2";
+ mboxes = <&raid_mbox 28 0x1 0xff00>,
+ <&raid_mbox 29 0x1 0xff00>,
+ <&raid_mbox 30 0x1 0xff00>,
+ <&raid_mbox 31 0x1 0xff00>;
+ };
+ };
diff --git a/arch/arm64/boot/dts/broadcom/stingray/stingray-pinctrl.dtsi b/arch/arm64/boot/dts/broadcom/stingray/stingray-pinctrl.dtsi
new file mode 100644
index 000000000000..15214d05fec1
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/stingray/stingray-pinctrl.dtsi
@@ -0,0 +1,345 @@
+/*
+ * BSD LICENSE
+ *
+ * Copyright(c) 2016-2017 Broadcom. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Broadcom nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <dt-bindings/pinctrl/brcm,pinctrl-stingray.h>
+
+ pinconf: pinconf@00140000 {
+ compatible = "pinconf-single";
+ reg = <0x00140000 0x250>;
+ pinctrl-single,register-width = <32>;
+
+ /* pinconf functions */
+ };
+
+ pinmux: pinmux@0014029c {
+ compatible = "pinctrl-single";
+ reg = <0x0014029c 0x250>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ pinctrl-single,register-width = <32>;
+ pinctrl-single,function-mask = <0xf>;
+ pinctrl-single,gpio-range = <
+ &range 0 154 MODE_GPIO
+ >;
+ range: gpio-range {
+ #pinctrl-single,gpio-range-cells = <3>;
+ };
+
+ /* pinctrl functions */
+ tsio_pins: pinmux_gpio_14 {
+ pinctrl-single,pins = <
+ 0x038 MODE_NITRO /* tsio_0 */
+ 0x03c MODE_NITRO /* tsio_1 */
+ >;
+ };
+
+ nor_pins: pinmux_pnor_adv_n {
+ pinctrl-single,pins = <
+ 0x0ac MODE_PNOR /* nand_ce1_n */
+ 0x0b0 MODE_PNOR /* nand_ce0_n */
+ 0x0b4 MODE_PNOR /* nand_we_n */
+ 0x0b8 MODE_PNOR /* nand_wp_n */
+ 0x0bc MODE_PNOR /* nand_re_n */
+ 0x0c0 MODE_PNOR /* nand_rdy_bsy_n */
+ 0x0c4 MODE_PNOR /* nand_io0_0 */
+ 0x0c8 MODE_PNOR /* nand_io1_0 */
+ 0x0cc MODE_PNOR /* nand_io2_0 */
+ 0x0d0 MODE_PNOR /* nand_io3_0 */
+ 0x0d4 MODE_PNOR /* nand_io4_0 */
+ 0x0d8 MODE_PNOR /* nand_io5_0 */
+ 0x0dc MODE_PNOR /* nand_io6_0 */
+ 0x0e0 MODE_PNOR /* nand_io7_0 */
+ 0x0e4 MODE_PNOR /* nand_io8_0 */
+ 0x0e8 MODE_PNOR /* nand_io9_0 */
+ 0x0ec MODE_PNOR /* nand_io10_0 */
+ 0x0f0 MODE_PNOR /* nand_io11_0 */
+ 0x0f4 MODE_PNOR /* nand_io12_0 */
+ 0x0f8 MODE_PNOR /* nand_io13_0 */
+ 0x0fc MODE_PNOR /* nand_io14_0 */
+ 0x100 MODE_PNOR /* nand_io15_0 */
+ 0x104 MODE_PNOR /* nand_ale_0 */
+ 0x108 MODE_PNOR /* nand_cle_0 */
+ 0x040 MODE_PNOR /* pnor_adv_n */
+ 0x044 MODE_PNOR /* pnor_baa_n */
+ 0x048 MODE_PNOR /* pnor_bls_0_n */
+ 0x04c MODE_PNOR /* pnor_bls_1_n */
+ 0x050 MODE_PNOR /* pnor_cre */
+ 0x054 MODE_PNOR /* pnor_cs_2_n */
+ 0x058 MODE_PNOR /* pnor_cs_1_n */
+ 0x05c MODE_PNOR /* pnor_cs_0_n */
+ 0x060 MODE_PNOR /* pnor_we_n */
+ 0x064 MODE_PNOR /* pnor_oe_n */
+ 0x068 MODE_PNOR /* pnor_intr */
+ 0x06c MODE_PNOR /* pnor_dat_0 */
+ 0x070 MODE_PNOR /* pnor_dat_1 */
+ 0x074 MODE_PNOR /* pnor_dat_2 */
+ 0x078 MODE_PNOR /* pnor_dat_3 */
+ 0x07c MODE_PNOR /* pnor_dat_4 */
+ 0x080 MODE_PNOR /* pnor_dat_5 */
+ 0x084 MODE_PNOR /* pnor_dat_6 */
+ 0x088 MODE_PNOR /* pnor_dat_7 */
+ 0x08c MODE_PNOR /* pnor_dat_8 */
+ 0x090 MODE_PNOR /* pnor_dat_9 */
+ 0x094 MODE_PNOR /* pnor_dat_10 */
+ 0x098 MODE_PNOR /* pnor_dat_11 */
+ 0x09c MODE_PNOR /* pnor_dat_12 */
+ 0x0a0 MODE_PNOR /* pnor_dat_13 */
+ 0x0a4 MODE_PNOR /* pnor_dat_14 */
+ 0x0a8 MODE_PNOR /* pnor_dat_15 */
+ >;
+ };
+
+ nand_pins: pinmux_nand_ce1_n {
+ pinctrl-single,pins = <
+ 0x0ac MODE_NAND /* nand_ce1_n */
+ 0x0b0 MODE_NAND /* nand_ce0_n */
+ 0x0b4 MODE_NAND /* nand_we_n */
+ 0x0b8 MODE_NAND /* nand_wp_n */
+ 0x0bc MODE_NAND /* nand_re_n */
+ 0x0c0 MODE_NAND /* nand_rdy_bsy_n */
+ 0x0c4 MODE_NAND /* nand_io0_0 */
+ 0x0c8 MODE_NAND /* nand_io1_0 */
+ 0x0cc MODE_NAND /* nand_io2_0 */
+ 0x0d0 MODE_NAND /* nand_io3_0 */
+ 0x0d4 MODE_NAND /* nand_io4_0 */
+ 0x0d8 MODE_NAND /* nand_io5_0 */
+ 0x0dc MODE_NAND /* nand_io6_0 */
+ 0x0e0 MODE_NAND /* nand_io7_0 */
+ 0x0e4 MODE_NAND /* nand_io8_0 */
+ 0x0e8 MODE_NAND /* nand_io9_0 */
+ 0x0ec MODE_NAND /* nand_io10_0 */
+ 0x0f0 MODE_NAND /* nand_io11_0 */
+ 0x0f4 MODE_NAND /* nand_io12_0 */
+ 0x0f8 MODE_NAND /* nand_io13_0 */
+ 0x0fc MODE_NAND /* nand_io14_0 */
+ 0x100 MODE_NAND /* nand_io15_0 */
+ 0x104 MODE_NAND /* nand_ale_0 */
+ 0x108 MODE_NAND /* nand_cle_0 */
+ >;
+ };
+
+ pwm0_pins: pinmux_pwm_0 {
+ pinctrl-single,pins = <
+ 0x10c MODE_NITRO
+ >;
+ };
+
+ pwm1_pins: pinmux_pwm_1 {
+ pinctrl-single,pins = <
+ 0x110 MODE_NITRO
+ >;
+ };
+
+ pwm2_pins: pinmux_pwm_2 {
+ pinctrl-single,pins = <
+ 0x114 MODE_NITRO
+ >;
+ };
+
+ pwm3_pins: pinmux_pwm_3 {
+ pinctrl-single,pins = <
+ 0x118 MODE_NITRO
+ >;
+ };
+
+ dbu_rxd_pins: pinmux_uart1_sin_nitro {
+ pinctrl-single,pins = <
+ 0x11c MODE_NITRO /* dbu_rxd */
+ 0x120 MODE_NITRO /* dbu_txd */
+ >;
+ };
+
+ uart1_pins: pinmux_uart1_sin_nand {
+ pinctrl-single,pins = <
+ 0x11c MODE_NAND /* uart1_sin */
+ 0x120 MODE_NAND /* uart1_out */
+ >;
+ };
+
+ uart2_pins: pinmux_uart2_sin {
+ pinctrl-single,pins = <
+ 0x124 MODE_NITRO /* uart2_sin */
+ 0x128 MODE_NITRO /* uart2_out */
+ >;
+ };
+
+ uart3_pins: pinmux_uart3_sin {
+ pinctrl-single,pins = <
+ 0x12c MODE_NITRO /* uart3_sin */
+ 0x130 MODE_NITRO /* uart3_out */
+ >;
+ };
+
+ i2s_pins: pinmux_i2s_bitclk {
+ pinctrl-single,pins = <
+ 0x134 MODE_NITRO /* i2s_bitclk */
+ 0x138 MODE_NITRO /* i2s_sdout */
+ 0x13c MODE_NITRO /* i2s_sdin */
+ 0x140 MODE_NITRO /* i2s_ws */
+ 0x144 MODE_NITRO /* i2s_mclk */
+ 0x148 MODE_NITRO /* i2s_spdif_out */
+ >;
+ };
+
+ qspi_pins: pinumx_qspi_hold_n {
+ pinctrl-single,pins = <
+ 0x14c MODE_NAND /* qspi_hold_n */
+ 0x150 MODE_NAND /* qspi_wp_n */
+ 0x154 MODE_NAND /* qspi_sck */
+ 0x158 MODE_NAND /* qspi_cs_n */
+ 0x15c MODE_NAND /* qspi_mosi */
+ 0x160 MODE_NAND /* qspi_miso */
+ >;
+ };
+
+ mdio_pins: pinumx_ext_mdio {
+ pinctrl-single,pins = <
+ 0x164 MODE_NITRO /* ext_mdio */
+ 0x168 MODE_NITRO /* ext_mdc */
+ >;
+ };
+
+ i2c0_pins: pinmux_i2c0_sda {
+ pinctrl-single,pins = <
+ 0x16c MODE_NITRO /* i2c0_sda */
+ 0x170 MODE_NITRO /* i2c0_scl */
+ >;
+ };
+
+ i2c1_pins: pinmux_i2c1_sda {
+ pinctrl-single,pins = <
+ 0x174 MODE_NITRO /* i2c1_sda */
+ 0x178 MODE_NITRO /* i2c1_scl */
+ >;
+ };
+
+ sdio0_pins: pinmux_sdio0_cd_l {
+ pinctrl-single,pins = <
+ 0x17c MODE_NITRO /* sdio0_cd_l */
+ 0x180 MODE_NITRO /* sdio0_clk_sdcard */
+ 0x184 MODE_NITRO /* sdio0_data0 */
+ 0x188 MODE_NITRO /* sdio0_data1 */
+ 0x18c MODE_NITRO /* sdio0_data2 */
+ 0x190 MODE_NITRO /* sdio0_data3 */
+ 0x194 MODE_NITRO /* sdio0_data4 */
+ 0x198 MODE_NITRO /* sdio0_data5 */
+ 0x19c MODE_NITRO /* sdio0_data6 */
+ 0x1a0 MODE_NITRO /* sdio0_data7 */
+ 0x1a4 MODE_NITRO /* sdio0_cmd */
+ 0x1a8 MODE_NITRO /* sdio0_emmc_rst_n */
+ 0x1ac MODE_NITRO /* sdio0_led_on */
+ 0x1b0 MODE_NITRO /* sdio0_wp */
+ >;
+ };
+
+ sdio1_pins: pinmux_sdio1_cd_l {
+ pinctrl-single,pins = <
+ 0x1b4 MODE_NITRO /* sdio1_cd_l */
+ 0x1b8 MODE_NITRO /* sdio1_clk_sdcard */
+ 0x1bc MODE_NITRO /* sdio1_data0 */
+ 0x1c0 MODE_NITRO /* sdio1_data1 */
+ 0x1c4 MODE_NITRO /* sdio1_data2 */
+ 0x1c8 MODE_NITRO /* sdio1_data3 */
+ 0x1cc MODE_NITRO /* sdio1_data4 */
+ 0x1d0 MODE_NITRO /* sdio1_data5 */
+ 0x1d4 MODE_NITRO /* sdio1_data6 */
+ 0x1d8 MODE_NITRO /* sdio1_data7 */
+ 0x1dc MODE_NITRO /* sdio1_cmd */
+ 0x1e0 MODE_NITRO /* sdio1_emmc_rst_n */
+ 0x1e4 MODE_NITRO /* sdio1_led_on */
+ 0x1e8 MODE_NITRO /* sdio1_wp */
+ >;
+ };
+
+ spi0_pins: pinmux_spi0_sck_nand {
+ pinctrl-single,pins = <
+ 0x1ec MODE_NITRO /* spi0_sck */
+ 0x1f0 MODE_NITRO /* spi0_rxd */
+ 0x1f4 MODE_NITRO /* spi0_fss */
+ 0x1f8 MODE_NITRO /* spi0_txd */
+ >;
+ };
+
+ spi1_pins: pinmux_spi1_sck_nand {
+ pinctrl-single,pins = <
+ 0x1fc MODE_NITRO /* spi1_sck */
+ 0x200 MODE_NITRO /* spi1_rxd */
+ 0x204 MODE_NITRO /* spi1_fss */
+ 0x208 MODE_NITRO /* spi1_txd */
+ >;
+ };
+
+ nuart_pins: pinmux_uart0_sin_nitro {
+ pinctrl-single,pins = <
+ 0x20c MODE_NITRO /* nuart_rxd */
+ 0x210 MODE_NITRO /* nuart_txd */
+ >;
+ };
+
+ uart0_pins: pinumux_uart0_sin_nand {
+ pinctrl-single,pins = <
+ 0x20c MODE_NAND /* uart0_sin */
+ 0x210 MODE_NAND /* uart0_out */
+ 0x214 MODE_NAND /* uart0_rts */
+ 0x218 MODE_NAND /* uart0_cts */
+ 0x21c MODE_NAND /* uart0_dtr */
+ 0x220 MODE_NAND /* uart0_dcd */
+ 0x224 MODE_NAND /* uart0_dsr */
+ 0x228 MODE_NAND /* uart0_ri */
+ >;
+ };
+
+ drdu2_pins: pinmux_drdu2_overcurrent {
+ pinctrl-single,pins = <
+ 0x22c MODE_NITRO /* drdu2_overcurrent */
+ 0x230 MODE_NITRO /* drdu2_vbus_ppc */
+ 0x234 MODE_NITRO /* drdu2_vbus_present */
+ 0x238 MODE_NITRO /* drdu2_id */
+ >;
+ };
+
+ drdu3_pins: pinmux_drdu3_overcurrent {
+ pinctrl-single,pins = <
+ 0x23c MODE_NITRO /* drdu3_overcurrent */
+ 0x240 MODE_NITRO /* drdu3_vbus_ppc */
+ 0x244 MODE_NITRO /* drdu3_vbus_present */
+ 0x248 MODE_NITRO /* drdu3_id */
+ >;
+ };
+
+ usb3h_pins: pinmux_usb3h_overcurrent {
+ pinctrl-single,pins = <
+ 0x24c MODE_NITRO /* usb3h_overcurrent */
+ 0x250 MODE_NITRO /* usb3h_vbus_ppc */
+ >;
+ };
+ };
diff --git a/arch/arm64/boot/dts/broadcom/stingray/stingray-sata.dtsi b/arch/arm64/boot/dts/broadcom/stingray/stingray-sata.dtsi
new file mode 100644
index 000000000000..a774709388df
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/stingray/stingray-sata.dtsi
@@ -0,0 +1,278 @@
+/*
+ * BSD LICENSE
+ *
+ * Copyright(c) 2016-2017 Broadcom. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Broadcom nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+ sata {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x0 0x67d00000 0x00800000>;
+
+ sata0: ahci@00210000 {
+ compatible = "brcm,iproc-ahci", "generic-ahci";
+ reg = <0x00210000 0x1000>;
+ reg-names = "ahci";
+ interrupts = <GIC_SPI 339 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata0_port0: sata-port@0 {
+ reg = <0>;
+ phys = <&sata0_phy0>;
+ phy-names = "sata-phy";
+ };
+ };
+
+ sata_phy0: sata_phy@00212100 {
+ compatible = "brcm,iproc-sr-sata-phy";
+ reg = <0x00212100 0x1000>;
+ reg-names = "phy";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata0_phy0: sata-phy@0 {
+ reg = <0>;
+ #phy-cells = <0>;
+ };
+ };
+
+ sata1: ahci@00310000 {
+ compatible = "brcm,iproc-ahci", "generic-ahci";
+ reg = <0x00310000 0x1000>;
+ reg-names = "ahci";
+ interrupts = <GIC_SPI 347 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata1_port0: sata-port@0 {
+ reg = <0>;
+ phys = <&sata1_phy0>;
+ phy-names = "sata-phy";
+ };
+ };
+
+ sata_phy1: sata_phy@00312100 {
+ compatible = "brcm,iproc-sr-sata-phy";
+ reg = <0x00312100 0x1000>;
+ reg-names = "phy";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata1_phy0: sata-phy@0 {
+ reg = <0>;
+ #phy-cells = <0>;
+ };
+ };
+
+ sata2: ahci@00120000 {
+ compatible = "brcm,iproc-ahci", "generic-ahci";
+ reg = <0x00120000 0x1000>;
+ reg-names = "ahci";
+ interrupts = <GIC_SPI 333 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata2_port0: sata-port@0 {
+ reg = <0>;
+ phys = <&sata2_phy0>;
+ phy-names = "sata-phy";
+ };
+ };
+
+ sata_phy2: sata_phy@00122100 {
+ compatible = "brcm,iproc-sr-sata-phy";
+ reg = <0x00122100 0x1000>;
+ reg-names = "phy";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata2_phy0: sata-phy@0 {
+ reg = <0>;
+ #phy-cells = <0>;
+ };
+ };
+
+ sata3: ahci@00130000 {
+ compatible = "brcm,iproc-ahci", "generic-ahci";
+ reg = <0x00130000 0x1000>;
+ reg-names = "ahci";
+ interrupts = <GIC_SPI 335 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata3_port0: sata-port@0 {
+ reg = <0>;
+ phys = <&sata3_phy0>;
+ phy-names = "sata-phy";
+ };
+ };
+
+ sata_phy3: sata_phy@00132100 {
+ compatible = "brcm,iproc-sr-sata-phy";
+ reg = <0x00132100 0x1000>;
+ reg-names = "phy";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata3_phy0: sata-phy@0 {
+ reg = <0>;
+ #phy-cells = <0>;
+ };
+ };
+
+ sata4: ahci@00330000 {
+ compatible = "brcm,iproc-ahci", "generic-ahci";
+ reg = <0x00330000 0x1000>;
+ reg-names = "ahci";
+ interrupts = <GIC_SPI 351 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata4_port0: sata-port@0 {
+ reg = <0>;
+ phys = <&sata4_phy0>;
+ phy-names = "sata-phy";
+ };
+ };
+
+ sata_phy4: sata_phy@00332100 {
+ compatible = "brcm,iproc-sr-sata-phy";
+ reg = <0x00332100 0x1000>;
+ reg-names = "phy";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata4_phy0: sata-phy@0 {
+ reg = <0>;
+ #phy-cells = <0>;
+ };
+ };
+
+ sata5: ahci@00400000 {
+ compatible = "brcm,iproc-ahci", "generic-ahci";
+ reg = <0x00400000 0x1000>;
+ reg-names = "ahci";
+ interrupts = <GIC_SPI 353 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata5_port0: sata-port@0 {
+ reg = <0>;
+ phys = <&sata5_phy0>;
+ phy-names = "sata-phy";
+ };
+ };
+
+ sata_phy5: sata_phy@00402100 {
+ compatible = "brcm,iproc-sr-sata-phy";
+ reg = <0x00402100 0x1000>;
+ reg-names = "phy";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata5_phy0: sata-phy@0 {
+ reg = <0>;
+ #phy-cells = <0>;
+ };
+ };
+
+ sata6: ahci@00410000 {
+ compatible = "brcm,iproc-ahci", "generic-ahci";
+ reg = <0x00410000 0x1000>;
+ reg-names = "ahci";
+ interrupts = <GIC_SPI 355 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata6_port0: sata-port@0 {
+ reg = <0>;
+ phys = <&sata6_phy0>;
+ phy-names = "sata-phy";
+ };
+ };
+
+ sata_phy6: sata_phy@00412100 {
+ compatible = "brcm,iproc-sr-sata-phy";
+ reg = <0x00412100 0x1000>;
+ reg-names = "phy";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata6_phy0: sata-phy@0 {
+ reg = <0>;
+ #phy-cells = <0>;
+ };
+ };
+
+ sata7: ahci@00420000 {
+ compatible = "brcm,iproc-ahci", "generic-ahci";
+ reg = <0x00420000 0x1000>;
+ reg-names = "ahci";
+ interrupts = <GIC_SPI 357 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata7_port0: sata-port@0 {
+ reg = <0>;
+ phys = <&sata7_phy0>;
+ phy-names = "sata-phy";
+ };
+ };
+
+ sata_phy7: sata_phy@00422100 {
+ compatible = "brcm,iproc-sr-sata-phy";
+ reg = <0x00422100 0x1000>;
+ reg-names = "phy";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata7_phy0: sata-phy@0 {
+ reg = <0>;
+ #phy-cells = <0>;
+ };
+ };
+ };
diff --git a/arch/arm64/boot/dts/broadcom/stingray/stingray.dtsi b/arch/arm64/boot/dts/broadcom/stingray/stingray.dtsi
new file mode 100644
index 000000000000..e6f75c633623
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/stingray/stingray.dtsi
@@ -0,0 +1,596 @@
+/*
+ * BSD LICENSE
+ *
+ * Copyright(c) 2015-2017 Broadcom. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Broadcom nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ compatible = "brcm,stingray";
+ interrupt-parent = <&gic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ cpus {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cpu@000 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72", "arm,armv8";
+ reg = <0x0 0x0>;
+ enable-method = "psci";
+ next-level-cache = <&CLUSTER0_L2>;
+ };
+
+ cpu@001 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72", "arm,armv8";
+ reg = <0x0 0x1>;
+ enable-method = "psci";
+ next-level-cache = <&CLUSTER0_L2>;
+ };
+
+ cpu@100 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72", "arm,armv8";
+ reg = <0x0 0x100>;
+ enable-method = "psci";
+ next-level-cache = <&CLUSTER1_L2>;
+ };
+
+ cpu@101 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72", "arm,armv8";
+ reg = <0x0 0x101>;
+ enable-method = "psci";
+ next-level-cache = <&CLUSTER1_L2>;
+ };
+
+ cpu@200 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72", "arm,armv8";
+ reg = <0x0 0x200>;
+ enable-method = "psci";
+ next-level-cache = <&CLUSTER2_L2>;
+ };
+
+ cpu@201 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72", "arm,armv8";
+ reg = <0x0 0x201>;
+ enable-method = "psci";
+ next-level-cache = <&CLUSTER2_L2>;
+ };
+
+ cpu@300 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72", "arm,armv8";
+ reg = <0x0 0x300>;
+ enable-method = "psci";
+ next-level-cache = <&CLUSTER3_L2>;
+ };
+
+ cpu@301 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72", "arm,armv8";
+ reg = <0x0 0x301>;
+ enable-method = "psci";
+ next-level-cache = <&CLUSTER3_L2>;
+ };
+
+ CLUSTER0_L2: l2-cache@000 {
+ compatible = "cache";
+ };
+
+ CLUSTER1_L2: l2-cache@100 {
+ compatible = "cache";
+ };
+
+ CLUSTER2_L2: l2-cache@200 {
+ compatible = "cache";
+ };
+
+ CLUSTER3_L2: l2-cache@300 {
+ compatible = "cache";
+ };
+ };
+
+ memory: memory@80000000 {
+ device_type = "memory";
+ reg = <0x00000000 0x80000000 0 0x40000000>;
+ };
+
+ psci {
+ compatible = "arm,psci-0.2";
+ method = "smc";
+ };
+
+ pmu {
+ compatible = "arm,armv8-pmuv3";
+ interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
+ };
+
+ scr {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x0 0x61000000 0x05000000>;
+
+ ccn: ccn@00000000 {
+ compatible = "arm,ccn-502";
+ reg = <0x00000000 0x900000>;
+ interrupts = <GIC_SPI 799 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ gic: interrupt-controller@02c00000 {
+ compatible = "arm,gic-v3";
+ #interrupt-cells = <3>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ interrupt-controller;
+ reg = <0x02c00000 0x010000>, /* GICD */
+ <0x02e00000 0x600000>; /* GICR */
+ interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
+
+ gic_its: gic-its@63c20000 {
+ compatible = "arm,gic-v3-its";
+ msi-controller;
+ #msi-cells = <1>;
+ reg = <0x02c20000 0x10000>;
+ };
+ };
+
+ smmu: mmu@03000000 {
+ compatible = "arm,mmu-500";
+ reg = <0x03000000 0x80000>;
+ #global-interrupts = <1>;
+ interrupts = <GIC_SPI 704 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 711 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 712 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 713 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 714 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 715 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 716 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 717 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 718 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 719 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 720 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 721 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 722 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 723 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 724 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 725 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 726 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 727 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 728 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 729 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 730 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 731 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 732 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 733 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 734 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 735 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 736 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 737 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 738 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 739 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 740 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 741 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 742 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 743 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 744 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 745 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 746 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 747 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 748 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 749 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 750 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 751 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 752 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 753 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 754 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 755 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 756 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 757 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 758 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 759 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 760 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 761 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 762 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 763 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 764 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 765 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 766 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 767 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 768 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 769 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 770 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 771 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 772 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 773 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 774 IRQ_TYPE_LEVEL_HIGH>;
+ #iommu-cells = <2>;
+ };
+ };
+
+ crmu: crmu {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x0 0x66400000 0x100000>;
+
+ #include "stingray-clock.dtsi"
+
+ gpio_crmu: gpio@00024800 {
+ compatible = "brcm,iproc-gpio";
+ reg = <0x00024800 0x4c>;
+ ngpios = <6>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ };
+ };
+
+ #include "stingray-fs4.dtsi"
+ #include "stingray-sata.dtsi"
+
+ hsls {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x0 0x68900000 0x17700000>;
+
+ #include "stingray-pinctrl.dtsi"
+
+ mdio_mux_iproc: mdio-mux@0002023c {
+ compatible = "brcm,mdio-mux-iproc";
+ reg = <0x0002023c 0x14>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mdio@0 { /* PCIe serdes */
+ reg = <0x0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ mdio@2 { /* SATA */
+ reg = <0x2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ mdio@3 { /* USB */
+ reg = <0x3>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ mdio@10 { /* RGMII */
+ reg = <0x10>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
+
+ pwm: pwm@00010000 {
+ compatible = "brcm,iproc-pwm";
+ reg = <0x00010000 0x1000>;
+ clocks = <&crmu_ref25m>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ timer0: timer@00030000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x00030000 0x1000>;
+ interrupts = <GIC_SPI 179 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&hsls_25m_div2_clk>,
+ <&hsls_25m_div2_clk>,
+ <&hsls_div4_clk>;
+ clock-names = "timer1", "timer2", "apb_pclk";
+ status = "disabled";
+ };
+
+ timer1: timer@00040000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x00040000 0x1000>;
+ interrupts = <GIC_SPI 180 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&hsls_25m_div2_clk>,
+ <&hsls_25m_div2_clk>,
+ <&hsls_div4_clk>;
+ clock-names = "timer1", "timer2", "apb_pclk";
+ };
+
+ timer2: timer@00050000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x00050000 0x1000>;
+ interrupts = <GIC_SPI 181 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&hsls_25m_div2_clk>,
+ <&hsls_25m_div2_clk>,
+ <&hsls_div4_clk>;
+ clock-names = "timer1", "timer2", "apb_pclk";
+ status = "disabled";
+ };
+
+ timer3: timer@00060000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x00060000 0x1000>;
+ interrupts = <GIC_SPI 182 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&hsls_25m_div2_clk>,
+ <&hsls_25m_div2_clk>,
+ <&hsls_div4_clk>;
+ clock-names = "timer1", "timer2", "apb_pclk";
+ status = "disabled";
+ };
+
+ timer4: timer@00070000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x00070000 0x1000>;
+ interrupts = <GIC_SPI 207 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&hsls_25m_div2_clk>,
+ <&hsls_25m_div2_clk>,
+ <&hsls_div4_clk>;
+ clock-names = "timer1", "timer2", "apb_pclk";
+ status = "disabled";
+ };
+
+ timer5: timer@00080000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x00080000 0x1000>;
+ interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&hsls_25m_div2_clk>,
+ <&hsls_25m_div2_clk>,
+ <&hsls_div4_clk>;
+ clock-names = "timer1", "timer2", "apb_pclk";
+ status = "disabled";
+ };
+
+ timer6: timer@00090000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x00090000 0x1000>;
+ interrupts = <GIC_SPI 209 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&hsls_25m_div2_clk>,
+ <&hsls_25m_div2_clk>,
+ <&hsls_div4_clk>;
+ clock-names = "timer1", "timer2", "apb_pclk";
+ status = "disabled";
+ };
+
+ timer7: timer@000a0000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x000a0000 0x1000>;
+ interrupts = <GIC_SPI 210 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&hsls_25m_div2_clk>,
+ <&hsls_25m_div2_clk>,
+ <&hsls_div4_clk>;
+ clock-names = "timer1", "timer2", "apb_pclk";
+ status = "disabled";
+ };
+
+ i2c0: i2c@000b0000 {
+ compatible = "brcm,iproc-i2c";
+ reg = <0x000b0000 0x100>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <GIC_SPI 177 IRQ_TYPE_NONE>;
+ clock-frequency = <100000>;
+ status = "disabled";
+ };
+
+ wdt0: watchdog@000c0000 {
+ compatible = "arm,sp805", "arm,primecell";
+ reg = <0x000c0000 0x1000>;
+ interrupts = <GIC_SPI 189 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&hsls_25m_div2_clk>, <&hsls_div4_clk>;
+ clock-names = "wdogclk", "apb_pclk";
+ };
+
+ gpio_hsls: gpio@000d0000 {
+ compatible = "brcm,iproc-gpio";
+ reg = <0x000d0000 0x864>;
+ ngpios = <151>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ interrupts = <GIC_SPI 183 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-ranges = <&pinmux 0 0 16>,
+ <&pinmux 16 71 2>,
+ <&pinmux 18 131 8>,
+ <&pinmux 26 83 6>,
+ <&pinmux 32 123 4>,
+ <&pinmux 36 43 24>,
+ <&pinmux 60 89 2>,
+ <&pinmux 62 73 4>,
+ <&pinmux 66 95 28>,
+ <&pinmux 94 127 4>,
+ <&pinmux 98 139 10>,
+ <&pinmux 108 16 27>,
+ <&pinmux 135 77 6>,
+ <&pinmux 141 67 4>,
+ <&pinmux 145 149 6>,
+ <&pinmux 151 91 4>;
+ };
+
+ i2c1: i2c@000e0000 {
+ compatible = "brcm,iproc-i2c";
+ reg = <0x000e0000 0x100>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <GIC_SPI 178 IRQ_TYPE_NONE>;
+ clock-frequency = <100000>;
+ status = "disabled";
+ };
+
+ uart0: uart@00100000 {
+ device_type = "serial";
+ compatible = "snps,dw-apb-uart";
+ reg = <0x00100000 0x1000>;
+ reg-shift = <2>;
+ clock-frequency = <25000000>;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SPI 173 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ uart1: uart@00110000 {
+ device_type = "serial";
+ compatible = "snps,dw-apb-uart";
+ reg = <0x00110000 0x1000>;
+ reg-shift = <2>;
+ clock-frequency = <25000000>;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ uart2: uart@00120000 {
+ device_type = "serial";
+ compatible = "snps,dw-apb-uart";
+ reg = <0x00120000 0x1000>;
+ reg-shift = <2>;
+ clock-frequency = <25000000>;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SPI 175 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ uart3: uart@00130000 {
+ device_type = "serial";
+ compatible = "snps,dw-apb-uart";
+ reg = <0x00130000 0x1000>;
+ reg-shift = <2>;
+ clock-frequency = <25000000>;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SPI 176 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ ssp0: ssp@00180000 {
+ compatible = "arm,pl022", "arm,primecell";
+ reg = <0x00180000 0x1000>;
+ interrupts = <GIC_SPI 187 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&hsls_div2_clk>, <&hsls_div2_clk>;
+ clock-names = "spiclk", "apb_pclk";
+ num-cs = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ ssp1: ssp@00190000 {
+ compatible = "arm,pl022", "arm,primecell";
+ reg = <0x00190000 0x1000>;
+ interrupts = <GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&hsls_div2_clk>, <&hsls_div2_clk>;
+ clock-names = "spiclk", "apb_pclk";
+ num-cs = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ hwrng: hwrng@00220000 {
+ compatible = "brcm,iproc-rng200";
+ reg = <0x00220000 0x28>;
+ };
+
+ dma0: dma@00310000 {
+ compatible = "arm,pl330", "arm,primecell";
+ reg = <0x00310000 0x1000>;
+ interrupts = <GIC_SPI 193 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 194 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 195 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 196 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 197 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 198 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 199 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 200 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 201 IRQ_TYPE_LEVEL_HIGH>;
+ #dma-cells = <1>;
+ #dma-channels = <8>;
+ #dma-requests = <32>;
+ clocks = <&hsls_div2_clk>;
+ clock-names = "apb_pclk";
+ iommus = <&smmu 0x6000 0x0000>;
+ };
+
+ enet: ethernet@00340000{
+ compatible = "brcm,amac";
+ reg = <0x00340000 0x1000>;
+ reg-names = "amac_base";
+ dma-coherent;
+ interrupts = <GIC_SPI 213 IRQ_TYPE_LEVEL_HIGH>;
+ status= "disabled";
+ };
+
+ nand: nand@00360000 {
+ compatible = "brcm,nand-iproc", "brcm,brcmnand-v6.1";
+ reg = <0x00360000 0x600>,
+ <0x0050a408 0x600>,
+ <0x00360f00 0x20>;
+ reg-names = "nand", "iproc-idm", "iproc-ext";
+ interrupts = <GIC_SPI 203 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ brcm,nand-has-wp;
+ status = "disabled";
+ };
+
+ sdio0: sdhci@003f1000 {
+ compatible = "brcm,sdhci-iproc";
+ reg = <0x003f1000 0x100>;
+ interrupts = <GIC_SPI 204 IRQ_TYPE_LEVEL_HIGH>;
+ bus-width = <8>;
+ clocks = <&sdio0_clk>;
+ iommus = <&smmu 0x6002 0x0000>;
+ status = "disabled";
+ };
+
+ sdio1: sdhci@003f2000 {
+ compatible = "brcm,sdhci-iproc";
+ reg = <0x003f2000 0x100>;
+ interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
+ bus-width = <8>;
+ clocks = <&sdio1_clk>;
+ iommus = <&smmu 0x6003 0x0000>;
+ status = "disabled";
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
index e2b0da2c0bc7..297597442c44 100644
--- a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
@@ -280,9 +280,6 @@
&decon {
status = "okay";
-
- i80-if-timings {
- };
};
&decon_tv {
@@ -310,20 +307,6 @@
samsung,pll-clock-frequency = <24000000>;
pinctrl-names = "default";
pinctrl-0 = <&te_irq>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@1 {
- reg = <1>;
-
- dsi_out: endpoint {
- samsung,burst-clock-frequency = <512000000>;
- samsung,esc-clock-frequency = <16000000>;
- };
- };
- };
};
&hdmi {
@@ -846,7 +829,6 @@
&mshc_0 {
status = "okay";
- num-slots = <1>;
mmc-hs200-1_8v;
mmc-hs400-1_8v;
cap-mmc-highspeed;
@@ -868,7 +850,6 @@
&mshc_2 {
status = "okay";
- num-slots = <1>;
cap-sd-highspeed;
disable-wp;
cd-gpios = <&gpa2 4 GPIO_ACTIVE_HIGH>;
@@ -1116,9 +1097,6 @@
&mic {
status = "okay";
-
- i80-if-timings {
- };
};
&pmu_system_controller {
@@ -1216,8 +1194,9 @@
status = "okay";
};
-&usbdrd_dwc3_0 {
+&usbdrd_dwc3 {
dr_mode = "otg";
+ extcon = <&muic>;
};
&usbdrd30_phy {
diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts b/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts
index 3ff95277a8ec..23191eb9397c 100644
--- a/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts
+++ b/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts
@@ -60,7 +60,6 @@
vci-supply = <&ldo28_reg>;
reset-gpios = <&gpg0 0 GPIO_ACTIVE_LOW>;
enable-gpios = <&gpf1 5 GPIO_ACTIVE_HIGH>;
- te-gpios = <&gpf1 3 GPIO_ACTIVE_HIGH>;
};
};
diff --git a/arch/arm64/boot/dts/exynos/exynos5433.dtsi b/arch/arm64/boot/dts/exynos/exynos5433.dtsi
index 727f36abf3d4..7fe994b750da 100644
--- a/arch/arm64/boot/dts/exynos/exynos5433.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos5433.dtsi
@@ -1367,7 +1367,7 @@
ranges;
status = "disabled";
- dwc3@15400000 {
+ usbdrd_dwc3: dwc3@15400000 {
compatible = "snps,dwc3";
reg = <0x15400000 0x10000>;
interrupts = <GIC_SPI 231 IRQ_TYPE_LEVEL_HIGH>;
@@ -1414,7 +1414,7 @@
ranges;
status = "disabled";
- usbdrd_dwc3_0: dwc3@15a00000 {
+ usbhost_dwc3: dwc3@15a00000 {
compatible = "snps,dwc3";
reg = <0x15a00000 0x10000>;
interrupts = <GIC_SPI 244 IRQ_TYPE_LEVEL_HIGH>;
diff --git a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
index e5892bb0ae6e..4a8b1fb51243 100644
--- a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
+++ b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
@@ -359,7 +359,6 @@
&mmc_0 {
status = "okay";
- num-slots = <1>;
cap-mmc-highspeed;
mmc-hs200-1_8v;
non-removable;
@@ -375,7 +374,6 @@
&mmc_2 {
status = "okay";
- num-slots = <1>;
cap-sd-highspeed;
card-detect-delay = <200>;
clock-frequency = <400000000>;
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1012a-frdm.dts b/arch/arm64/boot/dts/freescale/fsl-ls1012a-frdm.dts
index 17fae8112e4d..7286b1ebfd7a 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1012a-frdm.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a-frdm.dts
@@ -1,7 +1,7 @@
/*
* Device Tree file for Freescale LS1012A Freedom Board.
*
- * Copyright 2016, Freescale Semiconductor
+ * Copyright 2016 Freescale Semiconductor, Inc.
*
* This file is dual-licensed: you can use it either under the terms
* of the GPLv2 or the X11 license, at your option. Note that this dual
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1012a-qds.dts b/arch/arm64/boot/dts/freescale/fsl-ls1012a-qds.dts
index e2a93d53d3d8..8c013b54db14 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1012a-qds.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a-qds.dts
@@ -1,7 +1,7 @@
/*
* Device Tree file for Freescale LS1012A QDS Board.
*
- * Copyright 2016, Freescale Semiconductor
+ * Copyright 2016 Freescale Semiconductor, Inc.
*
* This file is dual-licensed: you can use it either under the terms
* of the GPLv2 or the X11 license, at your option. Note that this dual
@@ -97,6 +97,14 @@
status = "okay";
};
+&esdhc0 {
+ status = "okay";
+};
+
+&esdhc1 {
+ status = "okay";
+};
+
&i2c0 {
status = "okay";
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1012a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1012a-rdb.dts
index ed77f6b0937b..c1a119effa61 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1012a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a-rdb.dts
@@ -1,7 +1,7 @@
/*
* Device Tree file for Freescale LS1012A RDB Board.
*
- * Copyright 2016, Freescale Semiconductor
+ * Copyright 2016 Freescale Semiconductor, Inc.
*
* This file is dual-licensed: you can use it either under the terms
* of the GPLv2 or the X11 license, at your option. Note that this dual
@@ -54,6 +54,19 @@
status = "okay";
};
+&esdhc0 {
+ sd-uhs-sdr104;
+ sd-uhs-sdr50;
+ sd-uhs-sdr25;
+ sd-uhs-sdr12;
+ status = "okay";
+};
+
+&esdhc1 {
+ mmc-hs200-1_8v;
+ status = "okay";
+};
+
&i2c0 {
status = "okay";
};
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
index b497ac196ccc..df83915d6ea6 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
@@ -1,7 +1,7 @@
/*
* Device Tree Include file for Freescale Layerscape-1012A family SoC.
*
- * Copyright 2016, Freescale Semiconductor
+ * Copyright 2016 Freescale Semiconductor, Inc.
*
* This file is dual-licensed: you can use it either under the terms
* of the GPLv2 or the X11 license, at your option. Note that this dual
@@ -76,10 +76,17 @@
sysclk: sysclk {
compatible = "fixed-clock";
#clock-cells = <0>;
- clock-frequency = <100000000>;
+ clock-frequency = <125000000>;
clock-output-names = "sysclk";
};
+ coreclk: coreclk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <100000000>;
+ clock-output-names = "coreclk";
+ };
+
timer {
compatible = "arm,armv8-timer";
interrupts = <1 13 IRQ_TYPE_LEVEL_LOW>,/* Physical Secure PPI */
@@ -117,12 +124,37 @@
#size-cells = <2>;
ranges;
+ esdhc0: esdhc@1560000 {
+ compatible = "fsl,ls1012a-esdhc", "fsl,esdhc";
+ reg = <0x0 0x1560000 0x0 0x10000>;
+ interrupts = <0 62 0x4>;
+ clocks = <&clockgen 4 0>;
+ voltage-ranges = <1800 1800 3300 3300>;
+ sdhci,auto-cmd12;
+ big-endian;
+ bus-width = <4>;
+ status = "disabled";
+ };
+
scfg: scfg@1570000 {
compatible = "fsl,ls1012a-scfg", "syscon";
reg = <0x0 0x1570000 0x0 0x10000>;
big-endian;
};
+ esdhc1: esdhc@1580000 {
+ compatible = "fsl,ls1012a-esdhc", "fsl,esdhc";
+ reg = <0x0 0x1580000 0x0 0x10000>;
+ interrupts = <0 65 0x4>;
+ clocks = <&clockgen 4 0>;
+ voltage-ranges = <1800 1800 3300 3300>;
+ sdhci,auto-cmd12;
+ big-endian;
+ broken-cd;
+ bus-width = <4>;
+ status = "disabled";
+ };
+
crypto: crypto@1700000 {
compatible = "fsl,sec-v5.4", "fsl,sec-v5.0",
"fsl,sec-v4.0";
@@ -223,7 +255,8 @@
compatible = "fsl,ls1012a-clockgen";
reg = <0x0 0x1ee1000 0x0 0x1000>;
#clock-cells = <2>;
- clocks = <&sysclk>;
+ clocks = <&sysclk &coreclk>;
+ clock-names = "sysclk", "coreclk";
};
tmu: tmu@1f00000 {
@@ -411,6 +444,15 @@
<&clockgen 4 3>;
};
+ usb0: usb3@2f00000 {
+ compatible = "snps,dwc3";
+ reg = <0x0 0x2f00000 0x0 0x10000>;
+ interrupts = <0 60 0x4>;
+ dr_mode = "host";
+ snps,quirk-frame-length-adjustment = <0x20>;
+ snps,dis_rxdet_inp3_quirk;
+ };
+
sata: sata@3200000 {
compatible = "fsl,ls1012a-ahci", "fsl,ls1043a-ahci";
reg = <0x0 0x3200000 0x0 0x10000>,
@@ -421,5 +463,13 @@
dma-coherent;
status = "disabled";
};
+
+ usb1: usb2@8600000 {
+ compatible = "fsl-usb2-dr-v2.5", "fsl-usb2-dr";
+ reg = <0x0 0x8600000 0x0 0x1000>;
+ interrupts = <0 139 0x4>;
+ dr_mode = "host";
+ phy_type = "ulpi";
+ };
};
};
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1043-post.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1043-post.dtsi
new file mode 100644
index 000000000000..169e171407a6
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1043-post.dtsi
@@ -0,0 +1,45 @@
+/*
+ * QorIQ FMan v3 device tree nodes for ls1043
+ *
+ * Copyright 2015-2016 Freescale Semiconductor Inc.
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+ */
+
+&soc {
+
+/* include used FMan blocks */
+#include "qoriq-fman3-0.dtsi"
+#include "qoriq-fman3-0-1g-0.dtsi"
+#include "qoriq-fman3-0-1g-1.dtsi"
+#include "qoriq-fman3-0-1g-2.dtsi"
+#include "qoriq-fman3-0-1g-3.dtsi"
+#include "qoriq-fman3-0-1g-4.dtsi"
+#include "qoriq-fman3-0-1g-5.dtsi"
+#include "qoriq-fman3-0-10g-0.dtsi"
+
+};
+
+&fman0 {
+ /* these aliases provide the FMan ports mapping */
+ enet0: ethernet@e0000 {
+ };
+
+ enet1: ethernet@e2000 {
+ };
+
+ enet2: ethernet@e4000 {
+ };
+
+ enet3: ethernet@e6000 {
+ };
+
+ enet4: ethernet@e8000 {
+ };
+
+ enet5: ethernet@ea000 {
+ };
+
+ enet6: ethernet@f0000 {
+ };
+};
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1043a-qds.dts b/arch/arm64/boot/dts/freescale/fsl-ls1043a-qds.dts
index 0989d635b558..6341281485cf 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1043a-qds.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1043a-qds.dts
@@ -1,7 +1,7 @@
/*
* Device Tree Include file for Freescale Layerscape-1043A family SoC.
*
- * Copyright 2014-2015, Freescale Semiconductor
+ * Copyright 2014-2015 Freescale Semiconductor, Inc.
*
* Mingkai Hu <Mingkai.hu@freescale.com>
*
@@ -181,3 +181,5 @@
reg = <0>;
};
};
+
+#include "fsl-ls1043-post.dtsi"
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1043a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1043a-rdb.dts
index c37110bc1506..3dc0c8e9663d 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1043a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1043a-rdb.dts
@@ -1,7 +1,7 @@
/*
* Device Tree Include file for Freescale Layerscape-1043A family SoC.
*
- * Copyright 2014-2015, Freescale Semiconductor
+ * Copyright 2014-2015 Freescale Semiconductor, Inc.
*
* Mingkai Hu <Mingkai.hu@freescale.com>
*
@@ -75,11 +75,11 @@
reg = <0x4c>;
};
eeprom@52 {
- compatible = "at24,24c512";
+ compatible = "atmel,24c512";
reg = <0x52>;
};
eeprom@53 {
- compatible = "at24,24c512";
+ compatible = "atmel,24c512";
reg = <0x53>;
};
rtc@68 {
@@ -139,3 +139,76 @@
&duart1 {
status = "okay";
};
+
+#include "fsl-ls1043-post.dtsi"
+
+&fman0 {
+ ethernet@e0000 {
+ phy-handle = <&qsgmii_phy1>;
+ phy-connection-type = "qsgmii";
+ };
+
+ ethernet@e2000 {
+ phy-handle = <&qsgmii_phy2>;
+ phy-connection-type = "qsgmii";
+ };
+
+ ethernet@e4000 {
+ phy-handle = <&rgmii_phy1>;
+ phy-connection-type = "rgmii-txid";
+ };
+
+ ethernet@e6000 {
+ phy-handle = <&rgmii_phy2>;
+ phy-connection-type = "rgmii-txid";
+ };
+
+ ethernet@e8000 {
+ phy-handle = <&qsgmii_phy3>;
+ phy-connection-type = "qsgmii";
+ };
+
+ ethernet@ea000 {
+ phy-handle = <&qsgmii_phy4>;
+ phy-connection-type = "qsgmii";
+ };
+
+ ethernet@f0000 { /* 10GEC1 */
+ phy-handle = <&aqr105_phy>;
+ phy-connection-type = "xgmii";
+ };
+
+ mdio@fc000 {
+ rgmii_phy1: ethernet-phy@1 {
+ reg = <0x1>;
+ };
+
+ rgmii_phy2: ethernet-phy@2 {
+ reg = <0x2>;
+ };
+
+ qsgmii_phy1: ethernet-phy@4 {
+ reg = <0x4>;
+ };
+
+ qsgmii_phy2: ethernet-phy@5 {
+ reg = <0x5>;
+ };
+
+ qsgmii_phy3: ethernet-phy@6 {
+ reg = <0x6>;
+ };
+
+ qsgmii_phy4: ethernet-phy@7 {
+ reg = <0x7>;
+ };
+ };
+
+ mdio@fd000 {
+ aqr105_phy: ethernet-phy@1 {
+ compatible = "ethernet-phy-ieee802.3-c45";
+ interrupts = <0 132 4>;
+ reg = <0x1>;
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
index 45cface08cbb..d16b9cc1e825 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
@@ -1,7 +1,7 @@
/*
* Device Tree Include file for Freescale Layerscape-1043A family SoC.
*
- * Copyright 2014-2015, Freescale Semiconductor
+ * Copyright 2014-2015 Freescale Semiconductor, Inc.
*
* Mingkai Hu <Mingkai.hu@freescale.com>
*
@@ -45,6 +45,7 @@
*/
#include <dt-bindings/thermal/thermal.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
/ {
compatible = "fsl,ls1043a";
@@ -52,6 +53,17 @@
#address-cells = <2>;
#size-cells = <2>;
+ aliases {
+ fman0 = &fman0;
+ ethernet0 = &enet0;
+ ethernet1 = &enet1;
+ ethernet2 = &enet2;
+ ethernet3 = &enet3;
+ ethernet4 = &enet4;
+ ethernet5 = &enet5;
+ ethernet6 = &enet6;
+ };
+
cpus {
#address-cells = <1>;
#size-cells = <0>;
@@ -106,6 +118,33 @@
/* DRAM space 1, size: 2GiB DRAM */
};
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ bman_fbpr: bman-fbpr {
+ compatible = "shared-dma-pool";
+ size = <0 0x1000000>;
+ alignment = <0 0x1000000>;
+ no-map;
+ };
+
+ qman_fqd: qman-fqd {
+ compatible = "shared-dma-pool";
+ size = <0 0x400000>;
+ alignment = <0 0x400000>;
+ no-map;
+ };
+
+ qman_pfdr: qman-pfdr {
+ compatible = "shared-dma-pool";
+ size = <0 0x2000000>;
+ alignment = <0 0x2000000>;
+ no-map;
+ };
+ };
+
sysclk: sysclk {
compatible = "fixed-clock";
#clock-cells = <0>;
@@ -152,7 +191,7 @@
interrupts = <1 9 0xf08>;
};
- soc {
+ soc: soc {
compatible = "simple-bus";
#address-cells = <2>;
#size-cells = <2>;
@@ -223,6 +262,7 @@
ifc: ifc@1530000 {
compatible = "fsl,ifc", "simple-bus";
reg = <0x0 0x1530000 0x0 0x10000>;
+ big-endian;
interrupts = <0 43 0x4>;
};
@@ -333,6 +373,28 @@
};
};
+ qman: qman@1880000 {
+ compatible = "fsl,qman";
+ reg = <0x0 0x1880000 0x0 0x10000>;
+ interrupts = <0 45 0x4>;
+ memory-region = <&qman_fqd &qman_pfdr>;
+ };
+
+ bman: bman@1890000 {
+ compatible = "fsl,bman";
+ reg = <0x0 0x1890000 0x0 0x10000>;
+ interrupts = <0 45 0x4>;
+ memory-region = <&bman_fbpr>;
+ };
+
+ bportals: bman-portals@508000000 {
+ ranges = <0x0 0x5 0x08000000 0x8000000>;
+ };
+
+ qportals: qman-portals@500000000 {
+ ranges = <0x0 0x5 0x00000000 0x8000000>;
+ };
+
dspi0: dspi@2100000 {
compatible = "fsl,ls1043a-dspi", "fsl,ls1021a-v1.0-dspi";
#address-cells = <1>;
@@ -591,21 +653,21 @@
};
msi1: msi-controller1@1571000 {
- compatible = "fsl,1s1043a-msi";
+ compatible = "fsl,ls1043a-msi";
reg = <0x0 0x1571000 0x0 0x8>;
msi-controller;
interrupts = <0 116 0x4>;
};
msi2: msi-controller2@1572000 {
- compatible = "fsl,1s1043a-msi";
+ compatible = "fsl,ls1043a-msi";
reg = <0x0 0x1572000 0x0 0x8>;
msi-controller;
interrupts = <0 126 0x4>;
};
msi3: msi-controller3@1573000 {
- compatible = "fsl,1s1043a-msi";
+ compatible = "fsl,ls1043a-msi";
reg = <0x0 0x1573000 0x0 0x8>;
msi-controller;
interrupts = <0 160 0x4>;
@@ -627,7 +689,7 @@
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x40 0x00010000 0x0 0x00010000 /* downstream I/O */
0x82000000 0x0 0x40000000 0x40 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */
- msi-parent = <&msi1>;
+ msi-parent = <&msi1>, <&msi2>, <&msi3>;
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 7>;
interrupt-map = <0000 0 0 1 &gic 0 110 0x4>,
@@ -652,7 +714,7 @@
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x48 0x00010000 0x0 0x00010000 /* downstream I/O */
0x82000000 0x0 0x40000000 0x48 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */
- msi-parent = <&msi2>;
+ msi-parent = <&msi1>, <&msi2>, <&msi3>;
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 7>;
interrupt-map = <0000 0 0 1 &gic 0 120 0x4>,
@@ -677,7 +739,7 @@
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x50 0x00010000 0x0 0x00010000 /* downstream I/O */
0x82000000 0x0 0x40000000 0x50 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */
- msi-parent = <&msi3>;
+ msi-parent = <&msi1>, <&msi2>, <&msi3>;
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 7>;
interrupt-map = <0000 0 0 1 &gic 0 154 0x4>,
@@ -688,3 +750,6 @@
};
};
+
+#include "qoriq-qman-portals.dtsi"
+#include "qoriq-bman-portals.dtsi"
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046-post.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1046-post.dtsi
new file mode 100644
index 000000000000..f5017dba0f17
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1046-post.dtsi
@@ -0,0 +1,48 @@
+/*
+ * QorIQ FMan v3 device tree nodes for ls1046
+ *
+ * Copyright 2015-2016 Freescale Semiconductor Inc.
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+ */
+
+&soc {
+
+/* include used FMan blocks */
+#include "qoriq-fman3-0.dtsi"
+#include "qoriq-fman3-0-1g-0.dtsi"
+#include "qoriq-fman3-0-1g-1.dtsi"
+#include "qoriq-fman3-0-1g-2.dtsi"
+#include "qoriq-fman3-0-1g-3.dtsi"
+#include "qoriq-fman3-0-1g-4.dtsi"
+#include "qoriq-fman3-0-1g-5.dtsi"
+#include "qoriq-fman3-0-10g-0.dtsi"
+#include "qoriq-fman3-0-10g-1.dtsi"
+};
+
+&fman0 {
+ /* these aliases provide the FMan ports mapping */
+ enet0: ethernet@e0000 {
+ };
+
+ enet1: ethernet@e2000 {
+ };
+
+ enet2: ethernet@e4000 {
+ };
+
+ enet3: ethernet@e6000 {
+ };
+
+ enet4: ethernet@e8000 {
+ };
+
+ enet5: ethernet@ea000 {
+ };
+
+ enet6: ethernet@f0000 {
+ };
+
+ enet7: ethernet@f2000 {
+ };
+};
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a-qds.dts b/arch/arm64/boot/dts/freescale/fsl-ls1046a-qds.dts
index 290e5b014414..434383bade0e 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1046a-qds.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a-qds.dts
@@ -1,7 +1,7 @@
/*
* Device Tree Include file for Freescale Layerscape-1046A family SoC.
*
- * Copyright 2016, Freescale Semiconductor, Inc.
+ * Copyright 2016 Freescale Semiconductor, Inc.
*
* Shaohui Xie <Shaohui.Xie@nxp.com>
*
@@ -210,3 +210,5 @@
reg = <0>;
};
};
+
+#include "fsl-ls1046-post.dtsi"
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts
index d1ccc000d05a..5dc2782e2a58 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts
@@ -1,7 +1,7 @@
/*
* Device Tree Include file for Freescale Layerscape-1046A family SoC.
*
- * Copyright 2016, Freescale Semiconductor, Inc.
+ * Copyright 2016 Freescale Semiconductor, Inc.
*
* Mingkai Hu <mingkai.hu@nxp.com>
*
@@ -72,6 +72,14 @@
status = "okay";
};
+&esdhc {
+ mmc-hs200-1_8v;
+ sd-uhs-sdr104;
+ sd-uhs-sdr50;
+ sd-uhs-sdr25;
+ sd-uhs-sdr12;
+};
+
&i2c0 {
status = "okay";
@@ -148,3 +156,63 @@
reg = <1>;
};
};
+
+#include "fsl-ls1046-post.dtsi"
+
+&fman0 {
+ ethernet@e4000 {
+ phy-handle = <&rgmii_phy1>;
+ phy-connection-type = "rgmii";
+ };
+
+ ethernet@e6000 {
+ phy-handle = <&rgmii_phy2>;
+ phy-connection-type = "rgmii";
+ };
+
+ ethernet@e8000 {
+ phy-handle = <&sgmii_phy1>;
+ phy-connection-type = "sgmii";
+ };
+
+ ethernet@ea000 {
+ phy-handle = <&sgmii_phy2>;
+ phy-connection-type = "sgmii";
+ };
+
+ ethernet@f0000 { /* 10GEC1 */
+ phy-handle = <&aqr106_phy>;
+ phy-connection-type = "xgmii";
+ };
+
+ ethernet@f2000 { /* 10GEC2 */
+ fixed-link = <0 1 1000 0 0>;
+ phy-connection-type = "xgmii";
+ };
+
+ mdio@fc000 {
+ rgmii_phy1: ethernet-phy@1 {
+ reg = <0x1>;
+ };
+
+ rgmii_phy2: ethernet-phy@2 {
+ reg = <0x2>;
+ };
+
+ sgmii_phy1: ethernet-phy@3 {
+ reg = <0x3>;
+ };
+
+ sgmii_phy2: ethernet-phy@4 {
+ reg = <0x4>;
+ };
+ };
+
+ mdio@fd000 {
+ aqr106_phy: ethernet-phy@0 {
+ compatible = "ethernet-phy-ieee802.3-c45";
+ interrupts = <0 131 4>;
+ reg = <0x0>;
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
index f4b8b7edaf9d..c8ff0baddf1d 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
@@ -1,7 +1,7 @@
/*
* Device Tree Include file for Freescale Layerscape-1046A family SoC.
*
- * Copyright 2016, Freescale Semiconductor, Inc.
+ * Copyright 2016 Freescale Semiconductor, Inc.
*
* Mingkai Hu <mingkai.hu@nxp.com>
*
@@ -55,6 +55,15 @@
aliases {
crypto = &crypto;
+ fman0 = &fman0;
+ ethernet0 = &enet0;
+ ethernet1 = &enet1;
+ ethernet2 = &enet2;
+ ethernet3 = &enet3;
+ ethernet4 = &enet4;
+ ethernet5 = &enet5;
+ ethernet6 = &enet6;
+ ethernet7 = &enet7;
};
cpus {
@@ -174,7 +183,7 @@
IRQ_TYPE_LEVEL_LOW)>;
};
- soc {
+ soc: soc {
compatible = "simple-bus";
#address-cells = <2>;
#size-cells = <2>;
@@ -190,6 +199,7 @@
ifc: ifc@1530000 {
compatible = "fsl,ifc", "simple-bus";
reg = <0x0 0x1530000 0x0 0x10000>;
+ big-endian;
interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
};
@@ -209,10 +219,10 @@
};
esdhc: esdhc@1560000 {
- compatible = "fsl,esdhc";
+ compatible = "fsl,ls1046a-esdhc", "fsl,esdhc";
reg = <0x0 0x1560000 0x0 0x10000>;
interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
- clock-frequency = <0>;
+ clocks = <&clockgen 2 1>;
voltage-ranges = <1800 1800 3300 3300>;
sdhci,auto-cmd12;
big-endian;
@@ -268,6 +278,30 @@
};
};
+ qman: qman@1880000 {
+ compatible = "fsl,qman";
+ reg = <0x0 0x1880000 0x0 0x10000>;
+ interrupts = <0 45 0x4>;
+ memory-region = <&qman_fqd &qman_pfdr>;
+
+ };
+
+ bman: bman@1890000 {
+ compatible = "fsl,bman";
+ reg = <0x0 0x1890000 0x0 0x10000>;
+ interrupts = <0 45 0x4>;
+ memory-region = <&bman_fbpr>;
+
+ };
+
+ qportals: qman-portals@500000000 {
+ ranges = <0x0 0x5 0x00000000 0x8000000>;
+ };
+
+ bportals: bman-portals@508000000 {
+ ranges = <0x0 0x5 0x08000000 0x8000000>;
+ };
+
dcfg: dcfg@1ee0000 {
compatible = "fsl,ls1046a-dcfg", "syscon";
reg = <0x0 0x1ee0000 0x0 0x10000>;
@@ -567,6 +601,7 @@
interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
dr_mode = "host";
snps,quirk-frame-length-adjustment = <0x20>;
+ snps,dis_rxdet_inp3_quirk;
};
usb1: usb@3000000 {
@@ -575,6 +610,7 @@
interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
dr_mode = "host";
snps,quirk-frame-length-adjustment = <0x20>;
+ snps,dis_rxdet_inp3_quirk;
};
usb2: usb@3100000 {
@@ -583,6 +619,7 @@
interrupts = <GIC_SPI 63 IRQ_TYPE_LEVEL_HIGH>;
dr_mode = "host";
snps,quirk-frame-length-adjustment = <0x20>;
+ snps,dis_rxdet_inp3_quirk;
};
sata: sata@3200000 {
@@ -593,5 +630,66 @@
interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clockgen 4 1>;
};
+
+ msi1: msi-controller@1580000 {
+ compatible = "fsl,ls1046a-msi";
+ msi-controller;
+ reg = <0x0 0x1580000 0x0 0x10000>;
+ interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ msi2: msi-controller@1590000 {
+ compatible = "fsl,ls1046a-msi";
+ msi-controller;
+ reg = <0x0 0x1590000 0x0 0x10000>;
+ interrupts = <GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ msi3: msi-controller@15a0000 {
+ compatible = "fsl,ls1046a-msi";
+ msi-controller;
+ reg = <0x0 0x15a0000 0x0 0x10000>;
+ interrupts = <GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 155 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ bman_fbpr: bman-fbpr {
+ compatible = "shared-dma-pool";
+ size = <0 0x1000000>;
+ alignment = <0 0x1000000>;
+ no-map;
+ };
+
+ qman_fqd: qman-fqd {
+ compatible = "shared-dma-pool";
+ size = <0 0x800000>;
+ alignment = <0 0x800000>;
+ no-map;
+ };
+
+ qman_pfdr: qman-pfdr {
+ compatible = "shared-dma-pool";
+ size = <0 0x2000000>;
+ alignment = <0 0x2000000>;
+ no-map;
+ };
};
};
+
+#include "qoriq-qman-portals.dtsi"
+#include "qoriq-bman-portals.dtsi"
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a-qds.dts b/arch/arm64/boot/dts/freescale/fsl-ls1088a-qds.dts
index 8c3cae530f8f..30128051d0c0 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a-qds.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a-qds.dts
@@ -110,6 +110,30 @@
};
};
+&ifc {
+ ranges = <0 0 0x5 0x80000000 0x08000000
+ 2 0 0x5 0x30000000 0x00010000
+ 3 0 0x5 0x20000000 0x00010000>;
+ status = "okay";
+
+ nor@0,0 {
+ compatible = "cfi-flash";
+ reg = <0x0 0x0 0x8000000>;
+ bank-width = <2>;
+ device-width = <1>;
+ };
+
+ nand@2,0 {
+ compatible = "fsl,ifc-nand";
+ reg = <0x2 0x0 0x10000>;
+ };
+
+ fpga: board-control@3,0 {
+ compatible = "fsl,ls1088aqds-fpga", "fsl,fpga-qixis";
+ reg = <0x3 0x0 0x0000100>;
+ };
+};
+
&duart0 {
status = "okay";
};
@@ -118,6 +142,10 @@
status = "okay";
};
+&esdhc {
+ status = "okay";
+};
+
&sata {
status = "okay";
};
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
index 8a04fbb25cb4..0f6fcda36b9e 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
@@ -49,7 +49,7 @@
#include "fsl-ls1088a.dtsi"
/ {
- model = "L1088A RDB Board";
+ model = "LS1088A RDB Board";
compatible = "fsl,ls1088a-rdb", "fsl,ls1088a";
};
@@ -94,6 +94,22 @@
};
};
+&ifc {
+ ranges = <0 0 0x5 0x30000000 0x00010000
+ 2 0 0x5 0x20000000 0x00010000>;
+ status = "okay";
+
+ nand@0,0 {
+ compatible = "fsl,ifc-nand";
+ reg = <0x0 0x0 0x10000>;
+ };
+
+ fpga: board-control@2,0 {
+ compatible = "fsl,ls1088ardb-fpga", "fsl,fpga-qixis";
+ reg = <0x2 0x0 0x0000100>;
+ };
+};
+
&duart0 {
status = "okay";
};
@@ -102,6 +118,10 @@
status = "okay";
};
+&esdhc {
+ status = "okay";
+};
+
&sata {
status = "okay";
};
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
index 2946fd797121..33797b373674 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
@@ -44,6 +44,7 @@
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/thermal/thermal.h>
/ {
compatible = "fsl,ls1088a";
@@ -51,6 +52,10 @@
#address-cells = <2>;
#size-cells = <2>;
+ aliases {
+ crypto = &crypto;
+ };
+
cpus {
#address-cells = <1>;
#size-cells = <0>;
@@ -61,6 +66,8 @@
compatible = "arm,cortex-a53";
reg = <0x0>;
clocks = <&clockgen 1 0>;
+ cpu-idle-states = <&CPU_PH20>;
+ #cooling-cells = <2>;
};
cpu1: cpu@1 {
@@ -68,6 +75,7 @@
compatible = "arm,cortex-a53";
reg = <0x1>;
clocks = <&clockgen 1 0>;
+ cpu-idle-states = <&CPU_PH20>;
};
cpu2: cpu@2 {
@@ -75,6 +83,7 @@
compatible = "arm,cortex-a53";
reg = <0x2>;
clocks = <&clockgen 1 0>;
+ cpu-idle-states = <&CPU_PH20>;
};
cpu3: cpu@3 {
@@ -82,6 +91,7 @@
compatible = "arm,cortex-a53";
reg = <0x3>;
clocks = <&clockgen 1 0>;
+ cpu-idle-states = <&CPU_PH20>;
};
cpu4: cpu@100 {
@@ -89,6 +99,8 @@
compatible = "arm,cortex-a53";
reg = <0x100>;
clocks = <&clockgen 1 1>;
+ cpu-idle-states = <&CPU_PH20>;
+ #cooling-cells = <2>;
};
cpu5: cpu@101 {
@@ -96,6 +108,7 @@
compatible = "arm,cortex-a53";
reg = <0x101>;
clocks = <&clockgen 1 1>;
+ cpu-idle-states = <&CPU_PH20>;
};
cpu6: cpu@102 {
@@ -103,6 +116,7 @@
compatible = "arm,cortex-a53";
reg = <0x102>;
clocks = <&clockgen 1 1>;
+ cpu-idle-states = <&CPU_PH20>;
};
cpu7: cpu@103 {
@@ -110,6 +124,16 @@
compatible = "arm,cortex-a53";
reg = <0x103>;
clocks = <&clockgen 1 1>;
+ cpu-idle-states = <&CPU_PH20>;
+ };
+
+ CPU_PH20: cpu-ph20 {
+ compatible = "arm,idle-state";
+ idle-state-name = "PH20";
+ arm,psci-suspend-param = <0x00010000>;
+ entry-latency-us = <1000>;
+ exit-latency-us = <1000>;
+ min-residency-us = <3000>;
};
};
@@ -133,6 +157,11 @@
<1 10 IRQ_TYPE_LEVEL_LOW>;/* Hypervisor PPI */
};
+ psci {
+ compatible = "arm,psci-0.2";
+ method = "smc";
+ };
+
sysclk: sysclk {
compatible = "fixed-clock";
#clock-cells = <0>;
@@ -153,6 +182,91 @@
clocks = <&sysclk>;
};
+ tmu: tmu@1f80000 {
+ compatible = "fsl,qoriq-tmu";
+ reg = <0x0 0x1f80000 0x0 0x10000>;
+ interrupts = <0 23 0x4>;
+ fsl,tmu-range = <0xb0000 0x9002a 0x6004c 0x30062>;
+ fsl,tmu-calibration =
+ /* Calibration data group 1 */
+ <0x00000000 0x00000026
+ 0x00000001 0x0000002d
+ 0x00000002 0x00000032
+ 0x00000003 0x00000039
+ 0x00000004 0x0000003f
+ 0x00000005 0x00000046
+ 0x00000006 0x0000004d
+ 0x00000007 0x00000054
+ 0x00000008 0x0000005a
+ 0x00000009 0x00000061
+ 0x0000000a 0x0000006a
+ 0x0000000b 0x00000071
+ /* Calibration data group 2 */
+ 0x00010000 0x00000025
+ 0x00010001 0x0000002c
+ 0x00010002 0x00000035
+ 0x00010003 0x0000003d
+ 0x00010004 0x00000045
+ 0x00010005 0x0000004e
+ 0x00010006 0x00000057
+ 0x00010007 0x00000061
+ 0x00010008 0x0000006b
+ 0x00010009 0x00000076
+ /* Calibration data group 3 */
+ 0x00020000 0x00000029
+ 0x00020001 0x00000033
+ 0x00020002 0x0000003d
+ 0x00020003 0x00000049
+ 0x00020004 0x00000056
+ 0x00020005 0x00000061
+ 0x00020006 0x0000006d
+ /* Calibration data group 4 */
+ 0x00030000 0x00000021
+ 0x00030001 0x0000002a
+ 0x00030002 0x0000003c
+ 0x00030003 0x0000004e>;
+ little-endian;
+ #thermal-sensor-cells = <1>;
+ };
+
+ thermal-zones {
+ cpu_thermal: cpu-thermal {
+ polling-delay-passive = <1000>;
+ polling-delay = <5000>;
+ thermal-sensors = <&tmu 0>;
+
+ trips {
+ cpu_alert: cpu-alert {
+ temperature = <85000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ cpu_crit: cpu-crit {
+ temperature = <95000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&cpu_alert>;
+ cooling-device =
+ <&cpu0 THERMAL_NO_LIMIT
+ THERMAL_NO_LIMIT>;
+ };
+
+ map1 {
+ trip = <&cpu_alert>;
+ cooling-device =
+ <&cpu4 THERMAL_NO_LIMIT
+ THERMAL_NO_LIMIT>;
+ };
+ };
+ };
+ };
+
duart0: serial@21c0500 {
compatible = "fsl,ns16550", "ns16550a";
reg = <0x0 0x21c0500 0x0 0x100>;
@@ -216,10 +330,6 @@
little-endian;
#address-cells = <2>;
#size-cells = <1>;
-
- ranges = <0 0 0x5 0x80000000 0x08000000
- 2 0 0x5 0x30000000 0x00010000
- 3 0 0x5 0x20000000 0x00010000>;
status = "disabled";
};
@@ -263,13 +373,67 @@
status = "disabled";
};
+ esdhc: esdhc@2140000 {
+ compatible = "fsl,ls1088a-esdhc", "fsl,esdhc";
+ reg = <0x0 0x2140000 0x0 0x10000>;
+ interrupts = <0 28 0x4>; /* Level high type */
+ clock-frequency = <0>;
+ voltage-ranges = <1800 1800 3300 3300>;
+ sdhci,auto-cmd12;
+ little-endian;
+ bus-width = <4>;
+ status = "disabled";
+ };
+
sata: sata@3200000 {
- compatible = "fsl,ls1088a-ahci", "fsl,ls1043a-ahci";
- reg = <0x0 0x3200000 0x0 0x10000>;
+ compatible = "fsl,ls1088a-ahci";
+ reg = <0x0 0x3200000 0x0 0x10000>,
+ <0x7 0x100520 0x0 0x4>;
+ reg-names = "ahci", "sata-ecc";
interrupts = <0 133 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clockgen 4 3>;
+ dma-coherent;
status = "disabled";
};
+
+ crypto: crypto@8000000 {
+ compatible = "fsl,sec-v5.0", "fsl,sec-v4.0";
+ fsl,sec-era = <8>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x00 0x8000000 0x100000>;
+ reg = <0x00 0x8000000 0x0 0x100000>;
+ interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>;
+ dma-coherent;
+
+ sec_jr0: jr@10000 {
+ compatible = "fsl,sec-v5.0-job-ring",
+ "fsl,sec-v4.0-job-ring";
+ reg = <0x10000 0x10000>;
+ interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ sec_jr1: jr@20000 {
+ compatible = "fsl,sec-v5.0-job-ring",
+ "fsl,sec-v4.0-job-ring";
+ reg = <0x20000 0x10000>;
+ interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ sec_jr2: jr@30000 {
+ compatible = "fsl,sec-v5.0-job-ring",
+ "fsl,sec-v4.0-job-ring";
+ reg = <0x30000 0x10000>;
+ interrupts = <GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ sec_jr3: jr@40000 {
+ compatible = "fsl,sec-v5.0-job-ring",
+ "fsl,sec-v4.0-job-ring";
+ reg = <0x40000 0x10000>;
+ interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
};
};
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls2080a-qds.dts b/arch/arm64/boot/dts/freescale/fsl-ls2080a-qds.dts
index c1e76dfca48e..3c99608b9b45 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls2080a-qds.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls2080a-qds.dts
@@ -1,7 +1,8 @@
/*
* Device Tree file for Freescale LS2080a QDS Board.
*
- * Copyright (C) 2015-17, Freescale Semiconductor
+ * Copyright 2015-2016 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
*
* Abhimanyu Saini <abhimanyu.saini@nxp.com>
* Bhupesh Sharma <bhupesh.sharma@freescale.com>
@@ -54,11 +55,6 @@
model = "Freescale Layerscape 2080a QDS Board";
compatible = "fsl,ls2080a-qds", "fsl,ls2080a";
- aliases {
- serial0 = &serial0;
- serial1 = &serial1;
- };
-
chosen {
stdout-path = "serial0:115200n8";
};
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls2080a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls2080a-rdb.dts
index 18ad19587311..a4e7de9f70d8 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls2080a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls2080a-rdb.dts
@@ -1,7 +1,8 @@
/*
* Device Tree file for Freescale LS2080a RDB Board.
*
- * Copyright (C) 2016-17, Freescale Semiconductor
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
*
* Abhimanyu Saini <abhimanyu.saini@nxp.com>
* Bhupesh Sharma <bhupesh.sharma@freescale.com>
@@ -54,11 +55,6 @@
model = "Freescale Layerscape 2080a RDB Board";
compatible = "fsl,ls2080a-rdb", "fsl,ls2080a";
- aliases {
- serial0 = &serial0;
- serial1 = &serial1;
- };
-
chosen {
stdout-path = "serial1:115200n8";
};
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls2080a-simu.dts b/arch/arm64/boot/dts/freescale/fsl-ls2080a-simu.dts
index 290604b0a603..fbbb73e571c0 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls2080a-simu.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls2080a-simu.dts
@@ -1,7 +1,7 @@
/*
* Device Tree file for Freescale LS2080a software Simulator model
*
- * Copyright (C) 2014-2015, Freescale Semiconductor
+ * Copyright 2014-2015 Freescale Semiconductor, Inc.
*
* Bhupesh Sharma <bhupesh.sharma@freescale.com>
*
@@ -52,11 +52,6 @@
model = "Freescale Layerscape 2080a software Simulator model";
compatible = "fsl,ls2080a-simu", "fsl,ls2080a";
- aliases {
- serial0 = &serial0;
- serial1 = &serial1;
- };
-
ethernet@2210000 {
compatible = "smsc,lan91c111";
reg = <0x0 0x2210000 0x0 0x100>;
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
index 46a26c021421..8d739301e7b8 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
@@ -1,7 +1,7 @@
/*
* Device Tree Include file for Freescale Layerscape-2080A family SoC.
*
- * Copyright (C) 2014-2016, Freescale Semiconductor
+ * Copyright 2014-2016 Freescale Semiconductor, Inc.
*
* Abhimanyu Saini <abhimanyu.saini@nxp.com>
* Bhupesh Sharma <bhupesh.sharma@freescale.com>
@@ -53,6 +53,7 @@
compatible = "arm,cortex-a57";
reg = <0x0>;
clocks = <&clockgen 1 0>;
+ cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster0_l2>;
#cooling-cells = <2>;
};
@@ -62,6 +63,7 @@
compatible = "arm,cortex-a57";
reg = <0x1>;
clocks = <&clockgen 1 0>;
+ cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster0_l2>;
};
@@ -70,6 +72,7 @@
compatible = "arm,cortex-a57";
reg = <0x100>;
clocks = <&clockgen 1 1>;
+ cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster1_l2>;
#cooling-cells = <2>;
};
@@ -79,6 +82,7 @@
compatible = "arm,cortex-a57";
reg = <0x101>;
clocks = <&clockgen 1 1>;
+ cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster1_l2>;
};
@@ -87,6 +91,7 @@
compatible = "arm,cortex-a57";
reg = <0x200>;
clocks = <&clockgen 1 2>;
+ cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster2_l2>;
#cooling-cells = <2>;
};
@@ -96,6 +101,7 @@
compatible = "arm,cortex-a57";
reg = <0x201>;
clocks = <&clockgen 1 2>;
+ cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster2_l2>;
};
@@ -105,6 +111,7 @@
reg = <0x300>;
clocks = <&clockgen 1 3>;
next-level-cache = <&cluster3_l2>;
+ cpu-idle-states = <&CPU_PW20>;
#cooling-cells = <2>;
};
@@ -113,6 +120,7 @@
compatible = "arm,cortex-a57";
reg = <0x301>;
clocks = <&clockgen 1 3>;
+ cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster3_l2>;
};
@@ -131,6 +139,15 @@
cluster3_l2: l2-cache3 {
compatible = "cache";
};
+
+ CPU_PW20: cpu-pw20 {
+ compatible = "arm,idle-state";
+ idle-state-name = "PW20";
+ arm,psci-suspend-param = <0x00010000>;
+ entry-latency-us = <2000>;
+ exit-latency-us = <2000>;
+ min-residency-us = <6000>;
+ };
};
&pcie1 {
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls2088a-qds.dts b/arch/arm64/boot/dts/freescale/fsl-ls2088a-qds.dts
index ebcd6ee4da0d..eaee5b1c3a44 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls2088a-qds.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls2088a-qds.dts
@@ -1,7 +1,8 @@
/*
* Device Tree file for Freescale LS2088A QDS Board.
*
- * Copyright (C) 2016-17, Freescale Semiconductor
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
*
* Abhimanyu Saini <abhimanyu.saini@nxp.com>
*
@@ -53,11 +54,6 @@
model = "Freescale Layerscape 2088A QDS Board";
compatible = "fsl,ls2088a-qds", "fsl,ls2088a";
- aliases {
- serial0 = &serial0;
- serial1 = &serial1;
- };
-
chosen {
stdout-path = "serial0:115200n8";
};
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls2088a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls2088a-rdb.dts
index 5992dc130faa..c411442cac62 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls2088a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls2088a-rdb.dts
@@ -1,7 +1,8 @@
/*
* Device Tree file for Freescale LS2088A RDB Board.
*
- * Copyright (C) 2016-17, Freescale Semiconductor
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
*
* Abhimanyu Saini <abhimanyu.saini@nxp.com>
*
@@ -53,11 +54,6 @@
model = "Freescale Layerscape 2088A RDB Board";
compatible = "fsl,ls2088a-rdb", "fsl,ls2088a";
- aliases {
- serial0 = &serial0;
- serial1 = &serial1;
- };
-
chosen {
stdout-path = "serial1:115200n8";
};
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls2088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls2088a.dtsi
index 33ce404cf7e4..6aa319dae396 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls2088a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls2088a.dtsi
@@ -1,7 +1,8 @@
/*
* Device Tree Include file for Freescale Layerscape-2088A family SoC.
*
- * Copyright (C) 2016-17, Freescale Semiconductor
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
*
* Abhimanyu Saini <abhimanyu.saini@nxp.com>
*
@@ -52,6 +53,7 @@
compatible = "arm,cortex-a72";
reg = <0x0>;
clocks = <&clockgen 1 0>;
+ cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster0_l2>;
#cooling-cells = <2>;
};
@@ -61,6 +63,7 @@
compatible = "arm,cortex-a72";
reg = <0x1>;
clocks = <&clockgen 1 0>;
+ cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster0_l2>;
};
@@ -69,6 +72,7 @@
compatible = "arm,cortex-a72";
reg = <0x100>;
clocks = <&clockgen 1 1>;
+ cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster1_l2>;
#cooling-cells = <2>;
};
@@ -78,6 +82,7 @@
compatible = "arm,cortex-a72";
reg = <0x101>;
clocks = <&clockgen 1 1>;
+ cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster1_l2>;
};
@@ -87,6 +92,7 @@
reg = <0x200>;
clocks = <&clockgen 1 2>;
next-level-cache = <&cluster2_l2>;
+ cpu-idle-states = <&CPU_PW20>;
#cooling-cells = <2>;
};
@@ -95,6 +101,7 @@
compatible = "arm,cortex-a72";
reg = <0x201>;
clocks = <&clockgen 1 2>;
+ cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster2_l2>;
};
@@ -103,6 +110,7 @@
compatible = "arm,cortex-a72";
reg = <0x300>;
clocks = <&clockgen 1 3>;
+ cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster3_l2>;
#cooling-cells = <2>;
};
@@ -112,6 +120,7 @@
compatible = "arm,cortex-a72";
reg = <0x301>;
clocks = <&clockgen 1 3>;
+ cpu-idle-states = <&CPU_PW20>;
next-level-cache = <&cluster3_l2>;
};
@@ -130,6 +139,15 @@
cluster3_l2: l2-cache3 {
compatible = "cache";
};
+
+ CPU_PW20: cpu-pw20 {
+ compatible = "arm,idle-state";
+ idle-state-name = "PW20";
+ arm,psci-suspend-param = <0x00010000>;
+ entry-latency-us = <2000>;
+ exit-latency-us = <2000>;
+ min-residency-us = <6000>;
+ };
};
&pcie1 {
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls208xa-qds.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls208xa-qds.dtsi
index 8b6204845973..b2374469a830 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls208xa-qds.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls208xa-qds.dtsi
@@ -1,7 +1,8 @@
/*
* Device Tree file for Freescale LS2080A QDS Board.
*
- * Copyright (C) 2016-17, Freescale Semiconductor
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
*
* Abhimanyu Saini <abhimanyu.saini@nxp.com>
*
@@ -45,6 +46,7 @@
*/
&esdhc {
+ mmc-hs200-1_8v;
status = "okay";
};
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls208xa-rdb.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls208xa-rdb.dtsi
index 3737587ffb33..9a1d0d2ab1c3 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls208xa-rdb.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls208xa-rdb.dtsi
@@ -1,7 +1,8 @@
/*
* Device Tree file for Freescale LS2080A RDB Board.
*
- * Copyright (C) 2016-17, Freescale Semiconductor
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
*
* Abhimanyu Saini <abhimanyu.saini@nxp.com>
*
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
index abb2fff7d162..4fb9a0966a84 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
@@ -1,7 +1,8 @@
/*
* Device Tree Include file for Freescale Layerscape-2080A family SoC.
*
- * Copyright (C) 2016-2017, Freescale Semiconductor
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
*
* Abhimanyu Saini <abhimanyu.saini@nxp.com>
*
@@ -45,6 +46,7 @@
*/
#include <dt-bindings/thermal/thermal.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
/ {
compatible = "fsl,ls2080a";
@@ -52,6 +54,12 @@
#address-cells = <2>;
#size-cells = <2>;
+ aliases {
+ crypto = &crypto;
+ serial0 = &serial0;
+ serial1 = &serial1;
+ };
+
cpu: cpus {
#address-cells = <1>;
#size-cells = <0>;
@@ -117,6 +125,11 @@
interrupts = <1 7 0x8>; /* PMU PPI, Level low type */
};
+ psci {
+ compatible = "arm,psci-0.2";
+ method = "smc";
+ };
+
soc {
compatible = "simple-bus";
#address-cells = <2>;
@@ -300,6 +313,45 @@
clock-names = "apb_pclk", "wdog_clk";
};
+ crypto: crypto@8000000 {
+ compatible = "fsl,sec-v5.0", "fsl,sec-v4.0";
+ fsl,sec-era = <8>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x00 0x8000000 0x100000>;
+ reg = <0x00 0x8000000 0x0 0x100000>;
+ interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>;
+ dma-coherent;
+
+ sec_jr0: jr@10000 {
+ compatible = "fsl,sec-v5.0-job-ring",
+ "fsl,sec-v4.0-job-ring";
+ reg = <0x10000 0x10000>;
+ interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ sec_jr1: jr@20000 {
+ compatible = "fsl,sec-v5.0-job-ring",
+ "fsl,sec-v4.0-job-ring";
+ reg = <0x20000 0x10000>;
+ interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ sec_jr2: jr@30000 {
+ compatible = "fsl,sec-v5.0-job-ring",
+ "fsl,sec-v4.0-job-ring";
+ reg = <0x30000 0x10000>;
+ interrupts = <GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ sec_jr3: jr@40000 {
+ compatible = "fsl,sec-v5.0-job-ring",
+ "fsl,sec-v4.0-job-ring";
+ reg = <0x40000 0x10000>;
+ interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+
fsl_mc: fsl-mc@80c000000 {
compatible = "fsl,qoriq-mc";
reg = <0x00000008 0x0c000000 0 0x40>, /* MC portal base */
@@ -471,7 +523,7 @@
compatible = "fsl,ls2080a-esdhc", "fsl,esdhc";
reg = <0x0 0x2140000 0x0 0x10000>;
interrupts = <0 28 0x4>; /* Level high type */
- clock-frequency = <0>; /* Updated by bootloader */
+ clocks = <&clockgen 4 1>;
voltage-ranges = <1800 1800 3300 3300>;
sdhci,auto-cmd12;
little-endian;
diff --git a/arch/arm64/boot/dts/freescale/qoriq-bman-portals.dtsi b/arch/arm64/boot/dts/freescale/qoriq-bman-portals.dtsi
new file mode 100644
index 000000000000..c3c2be4f5072
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/qoriq-bman-portals.dtsi
@@ -0,0 +1,71 @@
+/*
+ * QorIQ BMan Portals device tree
+ *
+ * Copyright 2011-2016 Freescale Semiconductor Inc.
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+ */
+
+&bportals {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+
+ bman-portal@0 {
+ /*
+ * bootloader fix-ups are expected to provide the
+ * "fsl,bman-portal-<hardware revision>" compatible
+ */
+ compatible = "fsl,bman-portal";
+ reg = <0x0 0x4000>, <0x4000000 0x4000>;
+ interrupts = <GIC_SPI 173 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ bman-portal@10000 {
+ compatible = "fsl,bman-portal";
+ reg = <0x10000 0x4000>, <0x4010000 0x4000>;
+ interrupts = <GIC_SPI 175 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ bman-portal@20000 {
+ compatible = "fsl,bman-portal";
+ reg = <0x20000 0x4000>, <0x4020000 0x4000>;
+ interrupts = <GIC_SPI 177 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ bman-portal@30000 {
+ compatible = "fsl,bman-portal";
+ reg = <0x30000 0x4000>, <0x4030000 0x4000>;
+ interrupts = <GIC_SPI 179 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ bman-portal@40000 {
+ compatible = "fsl,bman-portal";
+ reg = <0x40000 0x4000>, <0x4040000 0x4000>;
+ interrupts = <GIC_SPI 181 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ bman-portal@50000 {
+ compatible = "fsl,bman-portal";
+ reg = <0x50000 0x4000>, <0x4050000 0x4000>;
+ interrupts = <GIC_SPI 183 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ bman-portal@60000 {
+ compatible = "fsl,bman-portal";
+ reg = <0x60000 0x4000>, <0x4060000 0x4000>;
+ interrupts = <GIC_SPI 185 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ bman-portal@70000 {
+ compatible = "fsl,bman-portal";
+ reg = <0x70000 0x4000>, <0x4070000 0x4000>;
+ interrupts = <GIC_SPI 187 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ bman-portal@80000 {
+ compatible = "fsl,bman-portal";
+ reg = <0x80000 0x4000>, <0x4080000 0x4000>;
+ interrupts = <GIC_SPI 189 IRQ_TYPE_LEVEL_HIGH>;
+ };
+};
diff --git a/arch/arm64/boot/dts/freescale/qoriq-fman3-0-10g-0.dtsi b/arch/arm64/boot/dts/freescale/qoriq-fman3-0-10g-0.dtsi
new file mode 100644
index 000000000000..ecdffe731b98
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/qoriq-fman3-0-10g-0.dtsi
@@ -0,0 +1,42 @@
+/*
+ * QorIQ FMan v3 10g port #0 device tree
+ *
+ * Copyright 2012-2015 Freescale Semiconductor Inc.
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+ */
+
+fman@1a00000 {
+ fman0_rx_0x10: port@90000 {
+ cell-index = <0x10>;
+ compatible = "fsl,fman-v3-port-rx";
+ reg = <0x90000 0x1000>;
+ fsl,fman-10g-port;
+ };
+
+ fman0_tx_0x30: port@b0000 {
+ cell-index = <0x30>;
+ compatible = "fsl,fman-v3-port-tx";
+ reg = <0xb0000 0x1000>;
+ fsl,fman-10g-port;
+ };
+
+ ethernet@f0000 {
+ cell-index = <0x8>;
+ compatible = "fsl,fman-memac";
+ reg = <0xf0000 0x1000>;
+ fsl,fman-ports = <&fman0_rx_0x10 &fman0_tx_0x30>;
+ pcsphy-handle = <&pcsphy6>;
+ };
+
+ mdio@f1000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
+ reg = <0xf1000 0x1000>;
+
+ pcsphy6: ethernet-phy@0 {
+ reg = <0x0>;
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/freescale/qoriq-fman3-0-10g-1.dtsi b/arch/arm64/boot/dts/freescale/qoriq-fman3-0-10g-1.dtsi
new file mode 100644
index 000000000000..a7f6af56b6a5
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/qoriq-fman3-0-10g-1.dtsi
@@ -0,0 +1,42 @@
+/*
+ * QorIQ FMan v3 10g port #1 device tree
+ *
+ * Copyright 2012-2015 Freescale Semiconductor Inc.
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+ */
+
+fman@1a00000 {
+ fman0_rx_0x11: port@91000 {
+ cell-index = <0x11>;
+ compatible = "fsl,fman-v3-port-rx";
+ reg = <0x91000 0x1000>;
+ fsl,fman-10g-port;
+ };
+
+ fman0_tx_0x31: port@b1000 {
+ cell-index = <0x31>;
+ compatible = "fsl,fman-v3-port-tx";
+ reg = <0xb1000 0x1000>;
+ fsl,fman-10g-port;
+ };
+
+ ethernet@f2000 {
+ cell-index = <0x9>;
+ compatible = "fsl,fman-memac";
+ reg = <0xf2000 0x1000>;
+ fsl,fman-ports = <&fman0_rx_0x11 &fman0_tx_0x31>;
+ pcsphy-handle = <&pcsphy7>;
+ };
+
+ mdio@f3000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
+ reg = <0xf3000 0x1000>;
+
+ pcsphy7: ethernet-phy@0 {
+ reg = <0x0>;
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/freescale/qoriq-fman3-0-1g-0.dtsi b/arch/arm64/boot/dts/freescale/qoriq-fman3-0-1g-0.dtsi
new file mode 100644
index 000000000000..d600786719fb
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/qoriq-fman3-0-1g-0.dtsi
@@ -0,0 +1,41 @@
+/*
+ * QorIQ FMan v3 1g port #0 device tree
+ *
+ * Copyright 2012-2015 Freescale Semiconductor Inc.
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+ */
+
+fman@1a00000 {
+ fman0_rx_0x08: port@88000 {
+ cell-index = <0x8>;
+ compatible = "fsl,fman-v3-port-rx";
+ reg = <0x88000 0x1000>;
+ };
+
+ fman0_tx_0x28: port@a8000 {
+ cell-index = <0x28>;
+ compatible = "fsl,fman-v3-port-tx";
+ reg = <0xa8000 0x1000>;
+ };
+
+ ethernet@e0000 {
+ cell-index = <0>;
+ compatible = "fsl,fman-memac";
+ reg = <0xe0000 0x1000>;
+ fsl,fman-ports = <&fman0_rx_0x08 &fman0_tx_0x28>;
+ ptp-timer = <&ptp_timer0>;
+ pcsphy-handle = <&pcsphy0>;
+ };
+
+ mdio@e1000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
+ reg = <0xe1000 0x1000>;
+
+ pcsphy0: ethernet-phy@0 {
+ reg = <0x0>;
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/freescale/qoriq-fman3-0-1g-1.dtsi b/arch/arm64/boot/dts/freescale/qoriq-fman3-0-1g-1.dtsi
new file mode 100644
index 000000000000..3c0b76d43043
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/qoriq-fman3-0-1g-1.dtsi
@@ -0,0 +1,41 @@
+/*
+ * QorIQ FMan v3 1g port #1 device tree
+ *
+ * Copyright 2012-2015 Freescale Semiconductor Inc.
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+ */
+
+fman@1a00000 {
+ fman0_rx_0x09: port@89000 {
+ cell-index = <0x9>;
+ compatible = "fsl,fman-v3-port-rx";
+ reg = <0x89000 0x1000>;
+ };
+
+ fman0_tx_0x29: port@a9000 {
+ cell-index = <0x29>;
+ compatible = "fsl,fman-v3-port-tx";
+ reg = <0xa9000 0x1000>;
+ };
+
+ ethernet@e2000 {
+ cell-index = <1>;
+ compatible = "fsl,fman-memac";
+ reg = <0xe2000 0x1000>;
+ fsl,fman-ports = <&fman0_rx_0x09 &fman0_tx_0x29>;
+ ptp-timer = <&ptp_timer0>;
+ pcsphy-handle = <&pcsphy1>;
+ };
+
+ mdio@e3000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
+ reg = <0xe3000 0x1000>;
+
+ pcsphy1: ethernet-phy@0 {
+ reg = <0x0>;
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/freescale/qoriq-fman3-0-1g-2.dtsi b/arch/arm64/boot/dts/freescale/qoriq-fman3-0-1g-2.dtsi
new file mode 100644
index 000000000000..89633afca26a
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/qoriq-fman3-0-1g-2.dtsi
@@ -0,0 +1,41 @@
+/*
+ * QorIQ FMan v3 1g port #2 device tree
+ *
+ * Copyright 2012-2015 Freescale Semiconductor Inc.
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+ */
+
+fman@1a00000 {
+ fman0_rx_0x0a: port@8a000 {
+ cell-index = <0xa>;
+ compatible = "fsl,fman-v3-port-rx";
+ reg = <0x8a000 0x1000>;
+ };
+
+ fman0_tx_0x2a: port@aa000 {
+ cell-index = <0x2a>;
+ compatible = "fsl,fman-v3-port-tx";
+ reg = <0xaa000 0x1000>;
+ };
+
+ ethernet@e4000 {
+ cell-index = <2>;
+ compatible = "fsl,fman-memac";
+ reg = <0xe4000 0x1000>;
+ fsl,fman-ports = <&fman0_rx_0x0a &fman0_tx_0x2a>;
+ ptp-timer = <&ptp_timer0>;
+ pcsphy-handle = <&pcsphy2>;
+ };
+
+ mdio@e5000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
+ reg = <0xe5000 0x1000>;
+
+ pcsphy2: ethernet-phy@0 {
+ reg = <0x0>;
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/freescale/qoriq-fman3-0-1g-3.dtsi b/arch/arm64/boot/dts/freescale/qoriq-fman3-0-1g-3.dtsi
new file mode 100644
index 000000000000..87c2b705b1f9
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/qoriq-fman3-0-1g-3.dtsi
@@ -0,0 +1,41 @@
+/*
+ * QorIQ FMan v3 1g port #3 device tree
+ *
+ * Copyright 2012-2015 Freescale Semiconductor Inc.
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+ */
+
+fman@1a00000 {
+ fman0_rx_0x0b: port@8b000 {
+ cell-index = <0xb>;
+ compatible = "fsl,fman-v3-port-rx";
+ reg = <0x8b000 0x1000>;
+ };
+
+ fman0_tx_0x2b: port@ab000 {
+ cell-index = <0x2b>;
+ compatible = "fsl,fman-v3-port-tx";
+ reg = <0xab000 0x1000>;
+ };
+
+ ethernet@e6000 {
+ cell-index = <3>;
+ compatible = "fsl,fman-memac";
+ reg = <0xe6000 0x1000>;
+ fsl,fman-ports = <&fman0_rx_0x0b &fman0_tx_0x2b>;
+ ptp-timer = <&ptp_timer0>;
+ pcsphy-handle = <&pcsphy3>;
+ };
+
+ mdio@e7000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
+ reg = <0xe7000 0x1000>;
+
+ pcsphy3: ethernet-phy@0 {
+ reg = <0x0>;
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/freescale/qoriq-fman3-0-1g-4.dtsi b/arch/arm64/boot/dts/freescale/qoriq-fman3-0-1g-4.dtsi
new file mode 100644
index 000000000000..8f4d74b96b67
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/qoriq-fman3-0-1g-4.dtsi
@@ -0,0 +1,41 @@
+/*
+ * QorIQ FMan v3 1g port #4 device tree
+ *
+ * Copyright 2012-2015 Freescale Semiconductor Inc.
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+ */
+
+fman@1a00000 {
+ fman0_rx_0x0c: port@8c000 {
+ cell-index = <0xc>;
+ compatible = "fsl,fman-v3-port-rx";
+ reg = <0x8c000 0x1000>;
+ };
+
+ fman0_tx_0x2c: port@ac000 {
+ cell-index = <0x2c>;
+ compatible = "fsl,fman-v3-port-tx";
+ reg = <0xac000 0x1000>;
+ };
+
+ ethernet@e8000 {
+ cell-index = <4>;
+ compatible = "fsl,fman-memac";
+ reg = <0xe8000 0x1000>;
+ fsl,fman-ports = <&fman0_rx_0x0c &fman0_tx_0x2c>;
+ ptp-timer = <&ptp_timer0>;
+ pcsphy-handle = <&pcsphy4>;
+ };
+
+ mdio@e9000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
+ reg = <0xe9000 0x1000>;
+
+ pcsphy4: ethernet-phy@0 {
+ reg = <0x0>;
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/freescale/qoriq-fman3-0-1g-5.dtsi b/arch/arm64/boot/dts/freescale/qoriq-fman3-0-1g-5.dtsi
new file mode 100644
index 000000000000..d534f770f729
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/qoriq-fman3-0-1g-5.dtsi
@@ -0,0 +1,41 @@
+/*
+ * QorIQ FMan v3 1g port #5 device tree
+ *
+ * Copyright 2012-2015 Freescale Semiconductor Inc.
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+ */
+
+fman@1a00000 {
+ fman0_rx_0x0d: port@8d000 {
+ cell-index = <0xd>;
+ compatible = "fsl,fman-v3-port-rx";
+ reg = <0x8d000 0x1000>;
+ };
+
+ fman0_tx_0x2d: port@ad000 {
+ cell-index = <0x2d>;
+ compatible = "fsl,fman-v3-port-tx";
+ reg = <0xad000 0x1000>;
+ };
+
+ ethernet@ea000 {
+ cell-index = <5>;
+ compatible = "fsl,fman-memac";
+ reg = <0xea000 0x1000>;
+ fsl,fman-ports = <&fman0_rx_0x0d &fman0_tx_0x2d>;
+ ptp-timer = <&ptp_timer0>;
+ pcsphy-handle = <&pcsphy5>;
+ };
+
+ mdio@eb000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
+ reg = <0xeb000 0x1000>;
+
+ pcsphy5: ethernet-phy@0 {
+ reg = <0x0>;
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/freescale/qoriq-fman3-0.dtsi b/arch/arm64/boot/dts/freescale/qoriq-fman3-0.dtsi
new file mode 100644
index 000000000000..4dd06767f839
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/qoriq-fman3-0.dtsi
@@ -0,0 +1,81 @@
+/*
+ * QorIQ FMan v3 device tree
+ *
+ * Copyright 2012-2015 Freescale Semiconductor Inc.
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+ */
+
+fman0: fman@1a00000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ cell-index = <0>;
+ compatible = "fsl,fman";
+ ranges = <0x0 0x0 0x1a00000 0x100000>;
+ reg = <0x0 0x1a00000 0x0 0x100000>;
+ interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clockgen 3 0>;
+ clock-names = "fmanclk";
+ fsl,qman-channel-range = <0x800 0x10>;
+
+ muram@0 {
+ compatible = "fsl,fman-muram";
+ reg = <0x0 0x60000>;
+ };
+
+ fman0_oh_0x2: port@82000 {
+ cell-index = <0x2>;
+ compatible = "fsl,fman-v3-port-oh";
+ reg = <0x82000 0x1000>;
+ };
+
+ fman0_oh_0x3: port@83000 {
+ cell-index = <0x3>;
+ compatible = "fsl,fman-v3-port-oh";
+ reg = <0x83000 0x1000>;
+ };
+
+ fman0_oh_0x4: port@84000 {
+ cell-index = <0x4>;
+ compatible = "fsl,fman-v3-port-oh";
+ reg = <0x84000 0x1000>;
+ };
+
+ fman0_oh_0x5: port@85000 {
+ cell-index = <0x5>;
+ compatible = "fsl,fman-v3-port-oh";
+ reg = <0x85000 0x1000>;
+ };
+
+ fman0_oh_0x6: port@86000 {
+ cell-index = <0x6>;
+ compatible = "fsl,fman-v3-port-oh";
+ reg = <0x86000 0x1000>;
+ };
+
+ fman0_oh_0x7: port@87000 {
+ cell-index = <0x7>;
+ compatible = "fsl,fman-v3-port-oh";
+ reg = <0x87000 0x1000>;
+ };
+
+ mdio0: mdio@fc000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
+ reg = <0xfc000 0x1000>;
+ };
+
+ xmdio0: mdio@fd000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
+ reg = <0xfd000 0x1000>;
+ };
+
+ ptp_timer0: ptp-timer@fe000 {
+ compatible = "fsl,fman-ptp-timer";
+ reg = <0xfe000 0x1000>;
+ };
+};
diff --git a/arch/arm64/boot/dts/freescale/qoriq-qman-portals.dtsi b/arch/arm64/boot/dts/freescale/qoriq-qman-portals.dtsi
new file mode 100644
index 000000000000..2a9aa060efda
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/qoriq-qman-portals.dtsi
@@ -0,0 +1,80 @@
+/*
+ * QorIQ QMan Portals device tree
+ *
+ * Copyright 2011-2016 Freescale Semiconductor Inc.
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+ */
+
+&qportals {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+
+ qportal0: qman-portal@0 {
+ /*
+ * bootloader fix-ups are expected to provide the
+ * "fsl,bman-portal-<hardware revision>" compatible
+ */
+ compatible = "fsl,qman-portal";
+ reg = <0x0 0x4000>, <0x4000000 0x4000>;
+ interrupts = <GIC_SPI 172 IRQ_TYPE_LEVEL_HIGH>;
+ cell-index = <0>;
+ };
+
+ qportal1: qman-portal@10000 {
+ compatible = "fsl,qman-portal";
+ reg = <0x10000 0x4000>, <0x4010000 0x4000>;
+ interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
+ cell-index = <1>;
+ };
+
+ qportal2: qman-portal@20000 {
+ compatible = "fsl,qman-portal";
+ reg = <0x20000 0x4000>, <0x4020000 0x4000>;
+ interrupts = <GIC_SPI 176 IRQ_TYPE_LEVEL_HIGH>;
+ cell-index = <2>;
+ };
+
+ qportal3: qman-portal@30000 {
+ compatible = "fsl,qman-portal";
+ reg = <0x30000 0x4000>, <0x4030000 0x4000>;
+ interrupts = <GIC_SPI 178 IRQ_TYPE_LEVEL_HIGH>;
+ cell-index = <3>;
+ };
+
+ qportal4: qman-portal@40000 {
+ compatible = "fsl,qman-portal";
+ reg = <0x40000 0x4000>, <0x4040000 0x4000>;
+ interrupts = <GIC_SPI 180 IRQ_TYPE_LEVEL_HIGH>;
+ cell-index = <4>;
+ };
+
+ qportal5: qman-portal@50000 {
+ compatible = "fsl,qman-portal";
+ reg = <0x50000 0x4000>, <0x4050000 0x4000>;
+ interrupts = <GIC_SPI 182 IRQ_TYPE_LEVEL_HIGH>;
+ cell-index = <5>;
+ };
+
+ qportal6: qman-portal@60000 {
+ compatible = "fsl,qman-portal";
+ reg = <0x60000 0x4000>, <0x4060000 0x4000>;
+ interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>;
+ cell-index = <6>;
+ };
+
+ qportal7: qman-portal@70000 {
+ compatible = "fsl,qman-portal";
+ reg = <0x70000 0x4000>, <0x4070000 0x4000>;
+ interrupts = <GIC_SPI 186 IRQ_TYPE_LEVEL_HIGH>;
+ cell-index = <7>;
+ };
+
+ qportal8: qman-portal@80000 {
+ compatible = "fsl,qman-portal";
+ reg = <0x80000 0x4000>, <0x4080000 0x4000>;
+ interrupts = <GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>;
+ cell-index = <8>;
+ };
+};
diff --git a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
index 186251ffc6b2..fd4705c451e2 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
@@ -9,17 +9,28 @@
#include "hi3660.dtsi"
#include "hikey960-pinctrl.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
/ {
model = "HiKey960";
- compatible = "hisilicon,hi3660";
+ compatible = "hisilicon,hi3660-hikey960", "hisilicon,hi3660";
aliases {
- serial5 = &uart5; /* console UART */
+ mshc1 = &dwmmc1;
+ mshc2 = &dwmmc2;
+ serial0 = &uart0;
+ serial1 = &uart1;
+ serial2 = &uart2;
+ serial3 = &uart3;
+ serial4 = &uart4;
+ serial5 = &uart5;
+ serial6 = &uart6;
};
chosen {
- stdout-path = "serial5:115200n8";
+ stdout-path = "serial6:115200n8";
};
memory@0 {
@@ -27,8 +38,241 @@
/* rewrite this at bootloader */
reg = <0x0 0x0 0x0 0x0>;
};
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ ramoops@32000000 {
+ compatible = "ramoops";
+ reg = <0x0 0x32000000 0x0 0x00100000>;
+ record-size = <0x00020000>;
+ console-size = <0x00020000>;
+ ftrace-size = <0x00020000>;
+ };
+ };
+
+ reboot-mode-syscon@32100000 {
+ compatible = "syscon", "simple-mfd";
+ reg = <0x0 0x32100000 0x0 0x00001000>;
+
+ reboot-mode {
+ compatible = "syscon-reboot-mode";
+ offset = <0x0>;
+
+ mode-normal = <0x77665501>;
+ mode-bootloader = <0x77665500>;
+ mode-recovery = <0x77665502>;
+ };
+ };
+
+ keys {
+ compatible = "gpio-keys";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwr_key_pmx_func &pwr_key_cfg_func>;
+
+ power {
+ wakeup-source;
+ gpios = <&gpio4 2 GPIO_ACTIVE_LOW>;
+ label = "GPIO Power";
+ linux,code = <KEY_POWER>;
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ user_led1 {
+ label = "user_led1";
+ /* gpio_150_user_led1 */
+ gpios = <&gpio18 6 0>;
+ linux,default-trigger = "heartbeat";
+ };
+
+ user_led2 {
+ label = "user_led2";
+ /* gpio_151_user_led2 */
+ gpios = <&gpio18 7 0>;
+ linux,default-trigger = "mmc0";
+ };
+
+ user_led3 {
+ label = "user_led3";
+ /* gpio_189_user_led3 */
+ gpios = <&gpio23 5 0>;
+ default-state = "off";
+ };
+
+ user_led4 {
+ label = "user_led4";
+ /* gpio_190_user_led4 */
+ gpios = <&gpio23 6 0>;
+ linux,default-trigger = "cpu0";
+ };
+
+ wlan_active_led {
+ label = "wifi_active";
+ /* gpio_205_wifi_active */
+ gpios = <&gpio25 5 0>;
+ linux,default-trigger = "phy0tx";
+ default-state = "off";
+ };
+
+ bt_active_led {
+ label = "bt_active";
+ gpios = <&gpio25 7 0>;
+ /* gpio_207_user_led1 */
+ linux,default-trigger = "hci0-power";
+ default-state = "off";
+ };
+ };
+
+ pmic: pmic@fff34000 {
+ compatible = "hisilicon,hi6421v530-pmic";
+ reg = <0x0 0xfff34000 0x0 0x1000>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ regulators {
+ ldo3: LDO3 { /* HDMI */
+ regulator-name = "VOUT3_1V85";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <2200000>;
+ regulator-enable-ramp-delay = <120>;
+ };
+
+ ldo9: LDO9 { /* SDCARD I/O */
+ regulator-name = "VOUT9_1V8_2V95";
+ regulator-min-microvolt = <1750000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-enable-ramp-delay = <240>;
+ };
+
+ ldo11: LDO11 { /* Low Speed Connector */
+ regulator-name = "VOUT11_1V8_2V95";
+ regulator-min-microvolt = <1750000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-enable-ramp-delay = <240>;
+ };
+
+ ldo15: LDO15 { /* UFS VCC */
+ regulator-name = "VOUT15_3V0";
+ regulator-min-microvolt = <1750000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-enable-ramp-delay = <120>;
+ };
+
+ ldo16: LDO16 { /* SD VDD */
+ regulator-name = "VOUT16_2V95";
+ regulator-min-microvolt = <1750000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-enable-ramp-delay = <360>;
+ };
+ };
+ };
+
+ wlan_en: wlan-en-1-8v {
+ compatible = "regulator-fixed";
+ regulator-name = "wlan-en-regulator";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+
+ /* GPIO_051_WIFI_EN */
+ gpio = <&gpio6 3 0>;
+
+ /* WLAN card specific delay */
+ startup-delay-us = <70000>;
+ enable-active-high;
+ };
+
+ firmware {
+ optee {
+ compatible = "linaro,optee-tz";
+ method = "smc";
+ };
+ };
};
-&uart5 {
+&i2c0 {
+ /* On Low speed expansion */
+ label = "LS-I2C0";
status = "okay";
};
+
+&i2c1 {
+ status = "okay";
+
+ adv7533: adv7533@39 {
+ status = "ok";
+ compatible = "adi,adv7533";
+ reg = <0x39>;
+ };
+};
+
+&i2c7 {
+ /* On Low speed expansion */
+ label = "LS-I2C1";
+ status = "okay";
+};
+
+&uart3 {
+ /* On Low speed expansion */
+ label = "LS-UART0";
+ status = "okay";
+};
+
+&uart4 {
+ status = "okay";
+
+ bluetooth {
+ compatible = "ti,wl1837-st";
+ enable-gpios = <&gpio15 6 GPIO_ACTIVE_HIGH>;
+ max-speed = <3000000>;
+ };
+};
+
+&uart6 {
+ /* On Low speed expansion */
+ label = "LS-UART1";
+ status = "okay";
+};
+
+&spi2 {
+ /* On Low speed expansion */
+ label = "LS-SPI0";
+ status = "okay";
+};
+
+&spi3 {
+ /* On High speed expansion */
+ label = "HS-SPI1";
+ status = "okay";
+};
+
+&dwmmc1 {
+ vmmc-supply = <&ldo16>;
+ vqmmc-supply = <&ldo9>;
+ status = "okay";
+};
+
+&dwmmc2 { /* WIFI */
+ broken-cd;
+ /* WL_EN */
+ vmmc-supply = <&wlan_en>;
+ ti,non-removable;
+ non-removable;
+ #address-cells = <0x1>;
+ #size-cells = <0x0>;
+ status = "ok";
+
+ wlcore: wlcore@2 {
+ compatible = "ti,wl1837";
+ reg = <2>; /* sdio func num */
+ /* WL_IRQ, GPIO_179_WL_WAKEUP_AP */
+ interrupt-parent = <&gpio22>;
+ interrupts = <3 IRQ_TYPE_EDGE_RISING>;
+ };
+};
diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
index 3983086bd67b..b7a90d632959 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
@@ -5,6 +5,7 @@
*/
#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/hi3660-clock.h>
/ {
compatible = "hisilicon,hi3660";
@@ -57,6 +58,8 @@
device_type = "cpu";
reg = <0x0 0x0>;
enable-method = "psci";
+ next-level-cache = <&A53_L2>;
+ cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP_0>;
};
cpu1: cpu@1 {
@@ -64,6 +67,8 @@
device_type = "cpu";
reg = <0x0 0x1>;
enable-method = "psci";
+ next-level-cache = <&A53_L2>;
+ cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP_0>;
};
cpu2: cpu@2 {
@@ -71,6 +76,8 @@
device_type = "cpu";
reg = <0x0 0x2>;
enable-method = "psci";
+ next-level-cache = <&A53_L2>;
+ cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP_0>;
};
cpu3: cpu@3 {
@@ -78,6 +85,8 @@
device_type = "cpu";
reg = <0x0 0x3>;
enable-method = "psci";
+ next-level-cache = <&A53_L2>;
+ cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP_0>;
};
cpu4: cpu@100 {
@@ -85,6 +94,12 @@
device_type = "cpu";
reg = <0x0 0x100>;
enable-method = "psci";
+ next-level-cache = <&A73_L2>;
+ cpu-idle-states = <
+ &CPU_NAP
+ &CPU_SLEEP
+ &CLUSTER_SLEEP_1
+ >;
};
cpu5: cpu@101 {
@@ -92,6 +107,12 @@
device_type = "cpu";
reg = <0x0 0x101>;
enable-method = "psci";
+ next-level-cache = <&A73_L2>;
+ cpu-idle-states = <
+ &CPU_NAP
+ &CPU_SLEEP
+ &CLUSTER_SLEEP_1
+ >;
};
cpu6: cpu@102 {
@@ -99,6 +120,12 @@
device_type = "cpu";
reg = <0x0 0x102>;
enable-method = "psci";
+ next-level-cache = <&A73_L2>;
+ cpu-idle-states = <
+ &CPU_NAP
+ &CPU_SLEEP
+ &CLUSTER_SLEEP_1
+ >;
};
cpu7: cpu@103 {
@@ -106,6 +133,59 @@
device_type = "cpu";
reg = <0x0 0x103>;
enable-method = "psci";
+ next-level-cache = <&A73_L2>;
+ cpu-idle-states = <
+ &CPU_NAP
+ &CPU_SLEEP
+ &CLUSTER_SLEEP_1
+ >;
+ };
+
+ idle-states {
+ entry-method = "psci";
+
+ CPU_NAP: cpu-nap {
+ compatible = "arm,idle-state";
+ arm,psci-suspend-param = <0x0000001>;
+ entry-latency-us = <7>;
+ exit-latency-us = <2>;
+ min-residency-us = <15>;
+ };
+
+ CPU_SLEEP: cpu-sleep {
+ compatible = "arm,idle-state";
+ local-timer-stop;
+ arm,psci-suspend-param = <0x0010000>;
+ entry-latency-us = <40>;
+ exit-latency-us = <70>;
+ min-residency-us = <3000>;
+ };
+
+ CLUSTER_SLEEP_0: cluster-sleep-0 {
+ compatible = "arm,idle-state";
+ local-timer-stop;
+ arm,psci-suspend-param = <0x1010000>;
+ entry-latency-us = <500>;
+ exit-latency-us = <5000>;
+ min-residency-us = <20000>;
+ };
+
+ CLUSTER_SLEEP_1: cluster-sleep-1 {
+ compatible = "arm,idle-state";
+ local-timer-stop;
+ arm,psci-suspend-param = <0x1010000>;
+ entry-latency-us = <1000>;
+ exit-latency-us = <5000>;
+ min-residency-us = <20000>;
+ };
+ };
+
+ A53_L2: l2-cache0 {
+ compatible = "cache";
+ };
+
+ A73_L2: l2-cache1 {
+ compatible = "cache";
};
};
@@ -122,6 +202,26 @@
IRQ_TYPE_LEVEL_HIGH)>;
};
+ pmu {
+ compatible = "arm,armv8-pmuv3";
+ interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-affinity = <&cpu0>,
+ <&cpu1>,
+ <&cpu2>,
+ <&cpu3>,
+ <&cpu4>,
+ <&cpu5>,
+ <&cpu6>,
+ <&cpu7>;
+ };
+
timer {
compatible = "arm,armv8-timer";
interrupt-parent = <&gic>;
@@ -141,20 +241,742 @@
#size-cells = <2>;
ranges;
- fixed_uart5: fixed_19_2M {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <19200000>;
- clock-output-names = "fixed:uart5";
+ crg_ctrl: crg_ctrl@fff35000 {
+ compatible = "hisilicon,hi3660-crgctrl", "syscon";
+ reg = <0x0 0xfff35000 0x0 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ crg_rst: crg_rst_controller {
+ compatible = "hisilicon,hi3660-reset";
+ #reset-cells = <2>;
+ hisi,rst-syscon = <&crg_ctrl>;
+ };
+
+
+ pctrl: pctrl@e8a09000 {
+ compatible = "hisilicon,hi3660-pctrl", "syscon";
+ reg = <0x0 0xe8a09000 0x0 0x2000>;
+ #clock-cells = <1>;
+ };
+
+ pmuctrl: crg_ctrl@fff34000 {
+ compatible = "hisilicon,hi3660-pmuctrl", "syscon";
+ reg = <0x0 0xfff34000 0x0 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ sctrl: sctrl@fff0a000 {
+ compatible = "hisilicon,hi3660-sctrl", "syscon";
+ reg = <0x0 0xfff0a000 0x0 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ iomcu: iomcu@ffd7e000 {
+ compatible = "hisilicon,hi3660-iomcu", "syscon";
+ reg = <0x0 0xffd7e000 0x0 0x1000>;
+ #clock-cells = <1>;
+
+ };
+
+ iomcu_rst: reset {
+ compatible = "hisilicon,hi3660-reset";
+ hisi,rst-syscon = <&iomcu>;
+ #reset-cells = <2>;
+ };
+
+ dual_timer0: timer@fff14000 {
+ compatible = "arm,sp804", "arm,primecell";
+ reg = <0x0 0xfff14000 0x0 0x1000>;
+ interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg_ctrl HI3660_OSC32K>,
+ <&crg_ctrl HI3660_OSC32K>,
+ <&crg_ctrl HI3660_OSC32K>;
+ clock-names = "timer1", "timer2", "apb_pclk";
+ };
+
+ i2c0: i2c@ffd71000 {
+ compatible = "snps,designware-i2c";
+ reg = <0x0 0xffd71000 0x0 0x1000>;
+ interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clock-frequency = <400000>;
+ clocks = <&crg_ctrl HI3660_CLK_GATE_I2C0>;
+ resets = <&iomcu_rst 0x20 3>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_pmx_func &i2c0_cfg_func>;
+ status = "disabled";
+ };
+
+ i2c1: i2c@ffd72000 {
+ compatible = "snps,designware-i2c";
+ reg = <0x0 0xffd72000 0x0 0x1000>;
+ interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clock-frequency = <400000>;
+ clocks = <&crg_ctrl HI3660_CLK_GATE_I2C1>;
+ resets = <&iomcu_rst 0x20 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_pmx_func &i2c1_cfg_func>;
+ status = "disabled";
+ };
+
+ i2c3: i2c@fdf0c000 {
+ compatible = "snps,designware-i2c";
+ reg = <0x0 0xfdf0c000 0x0 0x1000>;
+ interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clock-frequency = <400000>;
+ clocks = <&crg_ctrl HI3660_CLK_GATE_I2C3>;
+ resets = <&crg_rst 0x78 7>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c3_pmx_func &i2c3_cfg_func>;
+ status = "disabled";
+ };
+
+ i2c7: i2c@fdf0b000 {
+ compatible = "snps,designware-i2c";
+ reg = <0x0 0xfdf0b000 0x0 0x1000>;
+ interrupts = <GIC_SPI 314 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clock-frequency = <400000>;
+ clocks = <&crg_ctrl HI3660_CLK_GATE_I2C7>;
+ resets = <&crg_rst 0x60 14>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c7_pmx_func &i2c7_cfg_func>;
+ status = "disabled";
+ };
+
+ uart0: serial@fdf02000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x0 0xfdf02000 0x0 0x1000>;
+ interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg_ctrl HI3660_CLK_MUX_UART0>,
+ <&crg_ctrl HI3660_PCLK>;
+ clock-names = "uartclk", "apb_pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pmx_func &uart0_cfg_func>;
+ status = "disabled";
+ };
+
+ uart1: serial@fdf00000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x0 0xfdf00000 0x0 0x1000>;
+ interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg_ctrl HI3660_CLK_GATE_UART1>,
+ <&crg_ctrl HI3660_CLK_GATE_UART1>;
+ clock-names = "uartclk", "apb_pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_pmx_func &uart1_cfg_func>;
+ status = "disabled";
+ };
+
+ uart2: serial@fdf03000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x0 0xfdf03000 0x0 0x1000>;
+ interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg_ctrl HI3660_CLK_GATE_UART2>,
+ <&crg_ctrl HI3660_PCLK>;
+ clock-names = "uartclk", "apb_pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2_pmx_func &uart2_cfg_func>;
+ status = "disabled";
};
- uart5: uart@fdf05000 {
+ uart3: serial@ffd74000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x0 0xffd74000 0x0 0x1000>;
+ interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg_ctrl HI3660_FACTOR_UART3>,
+ <&crg_ctrl HI3660_PCLK>;
+ clock-names = "uartclk", "apb_pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart3_pmx_func &uart3_cfg_func>;
+ status = "disabled";
+ };
+
+ uart4: serial@fdf01000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x0 0xfdf01000 0x0 0x1000>;
+ interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg_ctrl HI3660_CLK_GATE_UART4>,
+ <&crg_ctrl HI3660_CLK_GATE_UART4>;
+ clock-names = "uartclk", "apb_pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart4_pmx_func &uart4_cfg_func>;
+ status = "disabled";
+ };
+
+ uart5: serial@fdf05000 {
compatible = "arm,pl011", "arm,primecell";
reg = <0x0 0xfdf05000 0x0 0x1000>;
interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&fixed_uart5 &fixed_uart5>;
+ clocks = <&crg_ctrl HI3660_CLK_GATE_UART5>,
+ <&crg_ctrl HI3660_CLK_GATE_UART5>;
clock-names = "uartclk", "apb_pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart5_pmx_func &uart5_cfg_func>;
+ status = "disabled";
+ };
+
+ uart6: serial@fff32000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x0 0xfff32000 0x0 0x1000>;
+ interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg_ctrl HI3660_CLK_UART6>,
+ <&crg_ctrl HI3660_PCLK>;
+ clock-names = "uartclk", "apb_pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart6_pmx_func &uart6_cfg_func>;
+ status = "disabled";
+ };
+
+ dma0: dma@fdf30000 {
+ compatible = "hisilicon,k3-dma-1.0";
+ reg = <0x0 0xfdf30000 0x0 0x1000>;
+ #dma-cells = <1>;
+ dma-channels = <16>;
+ dma-requests = <32>;
+ dma-min-chan = <1>;
+ interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg_ctrl HI3660_CLK_GATE_DMAC>;
+ dma-no-cci;
+ dma-type = "hi3660_dma";
+ };
+
+ rtc0: rtc@fff04000 {
+ compatible = "arm,pl031", "arm,primecell";
+ reg = <0x0 0Xfff04000 0x0 0x1000>;
+ interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg_ctrl HI3660_PCLK>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio0: gpio@e8a0b000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a0b000 0 0x1000>;
+ interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx0 1 0 7>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO0>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio1: gpio@e8a0c000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a0c000 0 0x1000>;
+ interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx0 1 7 7>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO1>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio2: gpio@e8a0d000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a0d000 0 0x1000>;
+ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx0 0 14 8>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO2>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio3: gpio@e8a0e000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a0e000 0 0x1000>;
+ interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx0 0 22 8>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO3>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio4: gpio@e8a0f000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a0f000 0 0x1000>;
+ interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx0 0 30 8>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO4>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio5: gpio@e8a10000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a10000 0 0x1000>;
+ interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx0 0 38 8>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO5>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio6: gpio@e8a11000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a11000 0 0x1000>;
+ interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx0 0 46 8>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO6>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio7: gpio@e8a12000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a12000 0 0x1000>;
+ interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx0 0 54 8>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO7>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio8: gpio@e8a13000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a13000 0 0x1000>;
+ interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx0 0 62 8>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO8>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio9: gpio@e8a14000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a14000 0 0x1000>;
+ interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx0 0 70 8>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO9>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio10: gpio@e8a15000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a15000 0 0x1000>;
+ interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx0 0 78 8>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO10>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio11: gpio@e8a16000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a16000 0 0x1000>;
+ interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx0 0 86 8>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO11>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio12: gpio@e8a17000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a17000 0 0x1000>;
+ interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx0 0 94 3 &pmx0 7 101 1>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO12>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio13: gpio@e8a18000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a18000 0 0x1000>;
+ interrupts = <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx0 0 102 8>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO13>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio14: gpio@e8a19000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a19000 0 0x1000>;
+ interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx0 0 110 8>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO14>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio15: gpio@e8a1a000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a1a000 0 0x1000>;
+ interrupts = <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx0 0 118 6>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO15>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio16: gpio@e8a1b000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a1b000 0 0x1000>;
+ interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO16>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio17: gpio@e8a1c000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a1c000 0 0x1000>;
+ interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO17>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio18: gpio@ff3b4000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xff3b4000 0 0x1000>;
+ interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx2 0 0 8>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO18>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio19: gpio@ff3b5000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xff3b5000 0 0x1000>;
+ interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx2 0 8 4>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO19>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio20: gpio@e8a1f000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a1f000 0 0x1000>;
+ interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmx1 0 0 6>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO20>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio21: gpio@e8a20000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xe8a20000 0 0x1000>;
+ interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ gpio-ranges = <&pmx3 0 0 6>;
+ clocks = <&crg_ctrl HI3660_PCLK_GPIO21>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio22: gpio@fff0b000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xfff0b000 0 0x1000>;
+ interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ /* GPIO176 */
+ gpio-ranges = <&pmx4 2 0 6>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&sctrl HI3660_PCLK_AO_GPIO0>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio23: gpio@fff0c000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xfff0c000 0 0x1000>;
+ interrupts = <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ /* GPIO184 */
+ gpio-ranges = <&pmx4 0 6 7>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&sctrl HI3660_PCLK_AO_GPIO1>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio24: gpio@fff0d000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xfff0d000 0 0x1000>;
+ interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ /* GPIO192 */
+ gpio-ranges = <&pmx4 0 13 8>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&sctrl HI3660_PCLK_AO_GPIO2>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio25: gpio@fff0e000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xfff0e000 0 0x1000>;
+ interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ /* GPIO200 */
+ gpio-ranges = <&pmx4 0 21 4 &pmx4 5 25 3>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&sctrl HI3660_PCLK_AO_GPIO3>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio26: gpio@fff0f000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xfff0f000 0 0x1000>;
+ interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ /* GPIO208 */
+ gpio-ranges = <&pmx4 0 28 8>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&sctrl HI3660_PCLK_AO_GPIO4>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio27: gpio@fff10000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xfff10000 0 0x1000>;
+ interrupts = <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ /* GPIO216 */
+ gpio-ranges = <&pmx4 0 36 6>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&sctrl HI3660_PCLK_AO_GPIO5>;
+ clock-names = "apb_pclk";
+ };
+
+ gpio28: gpio@fff1d000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0 0xfff1d000 0 0x1000>;
+ interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ clocks = <&sctrl HI3660_PCLK_AO_GPIO6>;
+ clock-names = "apb_pclk";
+ };
+
+ spi2: spi@ffd68000 {
+ compatible = "arm,pl022", "arm,primecell";
+ reg = <0x0 0xffd68000 0x0 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg_ctrl HI3660_CLK_GATE_SPI2>;
+ clock-names = "apb_pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi2_pmx_func>;
+ num-cs = <1>;
+ cs-gpios = <&gpio27 2 0>;
+ status = "disabled";
+ };
+
+ spi3: spi@ff3b3000 {
+ compatible = "arm,pl022", "arm,primecell";
+ reg = <0x0 0xff3b3000 0x0 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <GIC_SPI 312 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg_ctrl HI3660_CLK_GATE_SPI3>;
+ clock-names = "apb_pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi3_pmx_func>;
+ num-cs = <1>;
+ cs-gpios = <&gpio18 5 0>;
+ status = "disabled";
+ };
+
+ pcie@f4000000 {
+ compatible = "hisilicon,kirin960-pcie";
+ reg = <0x0 0xf4000000 0x0 0x1000>,
+ <0x0 0xff3fe000 0x0 0x1000>,
+ <0x0 0xf3f20000 0x0 0x40000>,
+ <0x0 0xf5000000 0x0 0x2000>;
+ reg-names = "dbi", "apb", "phy", "config";
+ bus-range = <0x0 0x1>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ ranges = <0x02000000 0x0 0x00000000
+ 0x0 0xf6000000
+ 0x0 0x02000000>;
+ num-lanes = <1>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0xf800 0 0 7>;
+ interrupt-map = <0x0 0 0 1
+ &gic GIC_SPI 282 IRQ_TYPE_LEVEL_HIGH>,
+ <0x0 0 0 2
+ &gic GIC_SPI 283 IRQ_TYPE_LEVEL_HIGH>,
+ <0x0 0 0 3
+ &gic GIC_SPI 284 IRQ_TYPE_LEVEL_HIGH>,
+ <0x0 0 0 4
+ &gic GIC_SPI 285 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg_ctrl HI3660_PCIEPHY_REF>,
+ <&crg_ctrl HI3660_CLK_GATE_PCIEAUX>,
+ <&crg_ctrl HI3660_PCLK_GATE_PCIE_PHY>,
+ <&crg_ctrl HI3660_PCLK_GATE_PCIE_SYS>,
+ <&crg_ctrl HI3660_ACLK_GATE_PCIE>;
+ clock-names = "pcie_phy_ref", "pcie_aux",
+ "pcie_apb_phy", "pcie_apb_sys",
+ "pcie_aclk";
+ reset-gpios = <&gpio11 1 0 >;
+ };
+
+ /* SD */
+ dwmmc1: dwmmc1@ff37f000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ cd-inverted;
+ compatible = "hisilicon,hi3660-dw-mshc";
+ num-slots = <1>;
+ bus-width = <0x4>;
+ disable-wp;
+ cap-sd-highspeed;
+ supports-highspeed;
+ card-detect-delay = <200>;
+ reg = <0x0 0xff37f000 0x0 0x1000>;
+ interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg_ctrl HI3660_CLK_GATE_SD>,
+ <&crg_ctrl HI3660_HCLK_GATE_SD>;
+ clock-names = "ciu", "biu";
+ clock-frequency = <3200000>;
+ resets = <&crg_rst 0x94 18>;
+ reset-names = "reset";
+ cd-gpios = <&gpio25 3 0>;
+ hisilicon,peripheral-syscon = <&sctrl>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sd_pmx_func
+ &sd_clk_cfg_func
+ &sd_cfg_func>;
+ sd-uhs-sdr12;
+ sd-uhs-sdr25;
+ sd-uhs-sdr50;
+ sd-uhs-sdr104;
status = "disabled";
+
+ slot@0 {
+ reg = <0x0>;
+ bus-width = <4>;
+ disable-wp;
+ };
+ };
+
+ /* SDIO */
+ dwmmc2: dwmmc2@ff3ff000 {
+ compatible = "hisilicon,hi3660-dw-mshc";
+ reg = <0x0 0xff3ff000 0x0 0x1000>;
+ interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
+ num-slots = <1>;
+ clocks = <&crg_ctrl HI3660_CLK_GATE_SDIO0>,
+ <&crg_ctrl HI3660_HCLK_GATE_SDIO0>;
+ clock-names = "ciu", "biu";
+ resets = <&crg_rst 0x94 20>;
+ reset-names = "reset";
+ card-detect-delay = <200>;
+ supports-highspeed;
+ keep-power-in-suspend;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdio_pmx_func
+ &sdio_clk_cfg_func
+ &sdio_cfg_func>;
+ status = "disabled";
+ };
+
+ watchdog0: watchdog@e8a06000 {
+ compatible = "arm,sp805-wdt", "arm,primecell";
+ reg = <0x0 0xe8a06000 0x0 0x1000>;
+ interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg_ctrl HI3660_OSC32K>;
+ clock-names = "apb_pclk";
+ };
+
+ watchdog1: watchdog@e8a07000 {
+ compatible = "arm,sp805-wdt", "arm,primecell";
+ reg = <0x0 0xe8a07000 0x0 0x1000>;
+ interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&crg_ctrl HI3660_OSC32K>;
+ clock-names = "apb_pclk";
};
};
};
diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
index 49f6a6242cf9..2b526304ed27 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
@@ -141,6 +141,8 @@
bluetooth {
compatible = "ti,wl1835-st";
enable-gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>;
+ clocks = <&pmic>;
+ clock-names = "ext_clock";
};
};
@@ -466,6 +468,11 @@
method = "smc";
};
};
+
+ sound_card {
+ compatible = "audio-graph-card";
+ dais = <&i2s0_port0>;
+ };
};
&uart2 {
@@ -506,10 +513,33 @@
interrupts = <1 2>;
pd-gpio = <&gpio0 4 0>;
adi,dsi-lanes = <4>;
+ #sound-dai-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ adv7533_in: endpoint {
+ remote-endpoint = <&dsi_out0>;
+ };
+ };
+ port@2 {
+ reg = <2>;
+ codec_endpoint: endpoint {
+ remote-endpoint = <&i2s0_cpu_endpoint>;
+ };
+ };
+ };
+ };
+};
- port {
- adv7533_in: endpoint {
- remote-endpoint = <&dsi_out0>;
+&i2s0 {
+
+ ports {
+ i2s0_port0: port@0 {
+ i2s0_cpu_endpoint: endpoint {
+ remote-endpoint = <&codec_endpoint>;
+ dai-format = "i2s";
};
};
};
diff --git a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
index 5013e4b2ea71..02a3aa4b2165 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
@@ -262,6 +262,12 @@
#clock-cells = <1>;
};
+ acpu_sctrl: acpu_sctrl@f6504000 {
+ compatible = "hisilicon,hi6220-acpu-sctrl", "syscon";
+ reg = <0x0 0xf6504000 0x0 0x1000>;
+ #clock-cells = <1>;
+ };
+
medianoc_ade: medianoc_ade@f4520000 {
compatible = "syscon";
reg = <0x0 0xf4520000 0x0 0x4000>;
@@ -332,6 +338,19 @@
status = "disabled";
};
+ dma0: dma@f7370000 {
+ compatible = "hisilicon,k3-dma-1.0";
+ reg = <0x0 0xf7370000 0x0 0x1000>;
+ #dma-cells = <1>;
+ dma-channels = <15>;
+ dma-requests = <32>;
+ interrupts = <0 84 4>;
+ clocks = <&sys_ctrl HI6220_EDMAC_ACLK>;
+ dma-no-cci;
+ dma-type = "hi6220_dma";
+ status = "ok";
+ };
+
dual_timer0: timer@f8008000 {
compatible = "arm,sp804", "arm,primecell";
reg = <0x0 0xf8008000 0x0 0x1000>;
@@ -742,7 +761,8 @@
dr_mode = "otg";
g-rx-fifo-size = <512>;
g-np-tx-fifo-size = <128>;
- g-tx-fifo-size = <128 128 128 128 128 128>;
+ g-tx-fifo-size = <128 128 128 128 128 128 128 128
+ 16 16 16 16 16 16 16>;
interrupts = <0 77 0x4>;
};
@@ -805,6 +825,19 @@
#thermal-sensor-cells = <1>;
};
+ i2s0: i2s@f7118000{
+ compatible = "hisilicon,hi6210-i2s";
+ reg = <0x0 0xf7118000 0x0 0x8000>; /* i2s unit */
+ interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>; /* 155 "DigACodec_intr"-32 */
+ clocks = <&sys_ctrl HI6220_DACODEC_PCLK>,
+ <&sys_ctrl HI6220_BBPPLL0_DIV>;
+ clock-names = "dacodec", "i2s-base";
+ dmas = <&dma0 15 &dma0 14>;
+ dma-names = "rx", "tx";
+ hisilicon,sysctrl-syscon = <&sys_ctrl>;
+ #sound-dai-cells = <1>;
+ };
+
thermal-zones {
cls0: cls0 {
@@ -887,5 +920,69 @@
};
};
};
+
+ debug@f6590000 {
+ compatible = "arm,coresight-cpu-debug","arm,primecell";
+ reg = <0 0xf6590000 0 0x1000>;
+ clocks = <&sys_ctrl HI6220_DAPB_CLK>;
+ clock-names = "apb_pclk";
+ cpu = <&cpu0>;
+ };
+
+ debug@f6592000 {
+ compatible = "arm,coresight-cpu-debug","arm,primecell";
+ reg = <0 0xf6592000 0 0x1000>;
+ clocks = <&sys_ctrl HI6220_DAPB_CLK>;
+ clock-names = "apb_pclk";
+ cpu = <&cpu1>;
+ };
+
+ debug@f6594000 {
+ compatible = "arm,coresight-cpu-debug","arm,primecell";
+ reg = <0 0xf6594000 0 0x1000>;
+ clocks = <&sys_ctrl HI6220_DAPB_CLK>;
+ clock-names = "apb_pclk";
+ cpu = <&cpu2>;
+ };
+
+ debug@f6596000 {
+ compatible = "arm,coresight-cpu-debug","arm,primecell";
+ reg = <0 0xf6596000 0 0x1000>;
+ clocks = <&sys_ctrl HI6220_DAPB_CLK>;
+ clock-names = "apb_pclk";
+ cpu = <&cpu3>;
+ };
+
+ debug@f65d0000 {
+ compatible = "arm,coresight-cpu-debug","arm,primecell";
+ reg = <0 0xf65d0000 0 0x1000>;
+ clocks = <&sys_ctrl HI6220_DAPB_CLK>;
+ clock-names = "apb_pclk";
+ cpu = <&cpu4>;
+ };
+
+ debug@f65d2000 {
+ compatible = "arm,coresight-cpu-debug","arm,primecell";
+ reg = <0 0xf65d2000 0 0x1000>;
+ clocks = <&sys_ctrl HI6220_DAPB_CLK>;
+ clock-names = "apb_pclk";
+ cpu = <&cpu5>;
+ };
+
+ debug@f65d4000 {
+ compatible = "arm,coresight-cpu-debug","arm,primecell";
+ reg = <0 0xf65d4000 0 0x1000>;
+ clocks = <&sys_ctrl HI6220_DAPB_CLK>;
+ clock-names = "apb_pclk";
+ cpu = <&cpu6>;
+ };
+
+ debug@f65d6000 {
+ compatible = "arm,coresight-cpu-debug","arm,primecell";
+ reg = <0 0xf65d6000 0 0x1000>;
+ clocks = <&sys_ctrl HI6220_DAPB_CLK>;
+ clock-names = "apb_pclk";
+ cpu = <&cpu7>;
+ };
};
};
diff --git a/arch/arm64/boot/dts/hisilicon/hikey960-pinctrl.dtsi b/arch/arm64/boot/dts/hisilicon/hikey960-pinctrl.dtsi
index 719c4bc937a4..7e542d28dadb 100644
--- a/arch/arm64/boot/dts/hisilicon/hikey960-pinctrl.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hikey960-pinctrl.dtsi
@@ -24,6 +24,27 @@
&range 0 7 0
&range 8 116 0>;
+ pmu_pmx_func: pmu_pmx_func {
+ pinctrl-single,pins = <
+ 0x008 MUX_M1 /* PMU1_SSI */
+ 0x00c MUX_M1 /* PMU2_SSI */
+ 0x010 MUX_M1 /* PMU_CLKOUT */
+ 0x100 MUX_M1 /* PMU_HKADC_SSI */
+ >;
+ };
+
+ csi0_pwd_n_pmx_func: csi0_pwd_n_pmx_func {
+ pinctrl-single,pins = <
+ 0x044 MUX_M0 /* CSI0_PWD_N */
+ >;
+ };
+
+ csi1_pwd_n_pmx_func: csi1_pwd_n_pmx_func {
+ pinctrl-single,pins = <
+ 0x04c MUX_M0 /* CSI1_PWD_N */
+ >;
+ };
+
isp0_pmx_func: isp0_pmx_func {
pinctrl-single,pins = <
0x058 MUX_M1 /* ISP_CLK0 */
@@ -40,6 +61,12 @@
>;
};
+ pwr_key_pmx_func: pwr_key_pmx_func {
+ pinctrl-single,pins = <
+ 0x080 MUX_M0 /* GPIO_034 */
+ >;
+ };
+
i2c3_pmx_func: i2c3_pmx_func {
pinctrl-single,pins = <
0x02c MUX_M1 /* I2C3_SCL */
@@ -67,21 +94,10 @@
>;
};
- spi1_pmx_func: spi1_pmx_func {
- pinctrl-single,pins = <
- 0x034 MUX_M1 /* SPI1_CLK */
- 0x038 MUX_M1 /* SPI1_DI */
- 0x03c MUX_M1 /* SPI1_DO */
- 0x040 MUX_M1 /* SPI1_CS_N */
- >;
- };
-
uart0_pmx_func: uart0_pmx_func {
pinctrl-single,pins = <
0x0cc MUX_M2 /* UART0_RXD */
0x0d0 MUX_M2 /* UART0_TXD */
- 0x0d4 MUX_M2 /* UART0_RXD_M */
- 0x0d8 MUX_M2 /* UART0_TXD_M */
>;
};
@@ -138,6 +154,18 @@
0x0d8 MUX_M1 /* UART6_TXD */
>;
};
+
+ cam0_rst_pmx_func: cam0_rst_pmx_func {
+ pinctrl-single,pins = <
+ 0x0c8 MUX_M0 /* CAM0_RST */
+ >;
+ };
+
+ cam1_rst_pmx_func: cam1_rst_pmx_func {
+ pinctrl-single,pins = <
+ 0x124 MUX_M0 /* CAM1_RST */
+ >;
+ };
};
/* [IOMG_MMC0_000, IOMG_MMC0_005] */
@@ -174,6 +202,13 @@
/* pin base, nr pins & gpio function */
pinctrl-single,gpio-range = <&range 0 12 0>;
+ ufs_pmx_func: ufs_pmx_func {
+ pinctrl-single,pins = <
+ 0x000 MUX_M1 /* UFS_REF_CLK */
+ 0x004 MUX_M1 /* UFS_RST_N */
+ >;
+ };
+
spi3_pmx_func: spi3_pmx_func {
pinctrl-single,pins = <
0x008 MUX_M1 /* SPI3_CLK */
@@ -248,17 +283,17 @@
>;
};
- i2c2_pmx_func: i2c2_pmx_func {
+ i2c7_pmx_func: i2c7_pmx_func {
pinctrl-single,pins = <
- 0x024 MUX_M1 /* I2C2_SCL */
- 0x028 MUX_M1 /* I2C2_SDA */
+ 0x024 MUX_M3 /* I2C7_SCL */
+ 0x028 MUX_M3 /* I2C7_SDA */
>;
};
- i2c7_pmx_func: i2c7_pmx_func {
+ pcie_pmx_func: pcie_pmx_func {
pinctrl-single,pins = <
- 0x024 MUX_M3 /* I2C7_SCL */
- 0x028 MUX_M3 /* I2C7_SDA */
+ 0x084 MUX_M1 /* PCIE_CLKREQ_N */
+ 0x088 MUX_M1 /* PCIE_WAKE_N */
>;
};
@@ -271,15 +306,6 @@
>;
};
- spi4_pmx_func: spi4_pmx_func {
- pinctrl-single,pins = <
- 0x08c MUX_M4 /* SPI4_CLK */
- 0x090 MUX_M4 /* SPI4_DI */
- 0x094 MUX_M4 /* SPI4_DO */
- 0x098 MUX_M4 /* SPI4_CS0_N */
- >;
- };
-
i2s0_pmx_func: i2s0_pmx_func {
pinctrl-single,pins = <
0x034 MUX_M1 /* I2S0_DI */
@@ -290,13 +316,433 @@
};
};
- pmx5: pinmux@ff3fd800 {
+ pmx5: pinmux@e896c800 {
+ compatible = "pinconf-single";
+ reg = <0x0 0xe896c800 0x0 0x200>;
+ #pinctrl-cells = <1>;
+ pinctrl-single,register-width = <0x20>;
+
+ pmu_cfg_func: pmu_cfg_func {
+ pinctrl-single,pins = <
+ 0x010 0x0 /* PMU1_SSI */
+ 0x014 0x0 /* PMU2_SSI */
+ 0x018 0x0 /* PMU_CLKOUT */
+ 0x10c 0x0 /* PMU_HKADC_SSI */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_DIS
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_06MA DRIVE6_MASK
+ >;
+ };
+
+ i2c3_cfg_func: i2c3_cfg_func {
+ pinctrl-single,pins = <
+ 0x038 0x0 /* I2C3_SCL */
+ 0x03c 0x0 /* I2C3_SDA */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_DIS
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+
+ csi0_pwd_n_cfg_func: csi0_pwd_n_cfg_func {
+ pinctrl-single,pins = <
+ 0x050 0x0 /* CSI0_PWD_N */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_DIS
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_04MA DRIVE6_MASK
+ >;
+ };
+
+ csi1_pwd_n_cfg_func: csi1_pwd_n_cfg_func {
+ pinctrl-single,pins = <
+ 0x058 0x0 /* CSI1_PWD_N */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_DIS
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_04MA DRIVE6_MASK
+ >;
+ };
+
+ isp0_cfg_func: isp0_cfg_func {
+ pinctrl-single,pins = <
+ 0x064 0x0 /* ISP_CLK0 */
+ 0x070 0x0 /* ISP_SCL0 */
+ 0x074 0x0 /* ISP_SDA0 */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_DIS
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_04MA DRIVE6_MASK>;
+ };
+
+ isp1_cfg_func: isp1_cfg_func {
+ pinctrl-single,pins = <
+ 0x068 0x0 /* ISP_CLK1 */
+ 0x078 0x0 /* ISP_SCL1 */
+ 0x07c 0x0 /* ISP_SDA1 */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_DIS
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_04MA DRIVE6_MASK
+ >;
+ };
+
+ pwr_key_cfg_func: pwr_key_cfg_func {
+ pinctrl-single,pins = <
+ 0x08c 0x0 /* GPIO_034 */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_DIS
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+
+ uart1_cfg_func: uart1_cfg_func {
+ pinctrl-single,pins = <
+ 0x0b4 0x0 /* UART1_RXD */
+ 0x0b8 0x0 /* UART1_TXD */
+ 0x0bc 0x0 /* UART1_CTS_N */
+ 0x0c0 0x0 /* UART1_RTS_N */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_DIS
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+
+ uart2_cfg_func: uart2_cfg_func {
+ pinctrl-single,pins = <
+ 0x0c8 0x0 /* UART2_CTS_N */
+ 0x0cc 0x0 /* UART2_RTS_N */
+ 0x0d0 0x0 /* UART2_TXD */
+ 0x0d4 0x0 /* UART2_RXD */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_DIS
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+
+ uart5_cfg_func: uart5_cfg_func {
+ pinctrl-single,pins = <
+ 0x0c8 0x0 /* UART5_RXD */
+ 0x0cc 0x0 /* UART5_TXD */
+ 0x0d0 0x0 /* UART5_CTS_N */
+ 0x0d4 0x0 /* UART5_RTS_N */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_DIS
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+
+ cam0_rst_cfg_func: cam0_rst_cfg_func {
+ pinctrl-single,pins = <
+ 0x0d4 0x0 /* CAM0_RST */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_DIS
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_04MA DRIVE6_MASK
+ >;
+ };
+
+ uart0_cfg_func: uart0_cfg_func {
+ pinctrl-single,pins = <
+ 0x0d8 0x0 /* UART0_RXD */
+ 0x0dc 0x0 /* UART0_TXD */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_DIS
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+
+ uart6_cfg_func: uart6_cfg_func {
+ pinctrl-single,pins = <
+ 0x0d8 0x0 /* UART6_CTS_N */
+ 0x0dc 0x0 /* UART6_RTS_N */
+ 0x0e0 0x0 /* UART6_RXD */
+ 0x0e4 0x0 /* UART6_TXD */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_DIS
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+
+ uart3_cfg_func: uart3_cfg_func {
+ pinctrl-single,pins = <
+ 0x0e8 0x0 /* UART3_CTS_N */
+ 0x0ec 0x0 /* UART3_RTS_N */
+ 0x0f0 0x0 /* UART3_RXD */
+ 0x0f4 0x0 /* UART3_TXD */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_DIS
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+
+ uart4_cfg_func: uart4_cfg_func {
+ pinctrl-single,pins = <
+ 0x0f8 0x0 /* UART4_CTS_N */
+ 0x0fc 0x0 /* UART4_RTS_N */
+ 0x100 0x0 /* UART4_RXD */
+ 0x104 0x0 /* UART4_TXD */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_DIS
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+
+ cam1_rst_cfg_func: cam1_rst_cfg_func {
+ pinctrl-single,pins = <
+ 0x130 0x0 /* CAM1_RST */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_DIS
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_04MA DRIVE6_MASK
+ >;
+ };
+ };
+
+ pmx6: pinmux@ff3b6800 {
+ compatible = "pinconf-single";
+ reg = <0x0 0xff3b6800 0x0 0x18>;
+ #pinctrl-cells = <1>;
+ pinctrl-single,register-width = <0x20>;
+
+ ufs_cfg_func: ufs_cfg_func {
+ pinctrl-single,pins = <
+ 0x000 0x0 /* UFS_REF_CLK */
+ 0x004 0x0 /* UFS_RST_N */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_DIS
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_08MA DRIVE6_MASK
+ >;
+ };
+
+ spi3_cfg_func: spi3_cfg_func {
+ pinctrl-single,pins = <
+ 0x008 0x0 /* SPI3_CLK */
+ 0x0 /* SPI3_DI */
+ 0x010 0x0 /* SPI3_DO */
+ 0x014 0x0 /* SPI3_CS0_N */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_DIS
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+ };
+
+ pmx7: pinmux@ff3fd800 {
compatible = "pinconf-single";
reg = <0x0 0xff3fd800 0x0 0x18>;
#pinctrl-cells = <1>;
- #address-cells = <1>;
- #size-cells = <1>;
- pinctrl-single,register-width = <32>;
+ pinctrl-single,register-width = <0x20>;
sdio_clk_cfg_func: sdio_clk_cfg_func {
pinctrl-single,pins = <
@@ -315,8 +761,7 @@
PULL_UP
>;
pinctrl-single,drive-strength = <
- DRIVE6_32MA
- DRIVE6_MASK
+ DRIVE6_32MA DRIVE6_MASK
>;
};
@@ -341,19 +786,16 @@
PULL_UP
>;
pinctrl-single,drive-strength = <
- DRIVE6_19MA
- DRIVE6_MASK
+ DRIVE6_19MA DRIVE6_MASK
>;
};
};
- pmx6: pinmux@ff37e800 {
+ pmx8: pinmux@ff37e800 {
compatible = "pinconf-single";
reg = <0x0 0xff37e800 0x0 0x18>;
#pinctrl-cells = <1>;
- #address-cells = <1>;
- #size-cells = <1>;
- pinctrl-single,register-width = <32>;
+ pinctrl-single,register-width = <0x20>;
sd_clk_cfg_func: sd_clk_cfg_func {
pinctrl-single,pins = <
@@ -403,5 +845,215 @@
>;
};
};
+
+ pmx9: pinmux@fff11800 {
+ compatible = "pinconf-single";
+ reg = <0x0 0xfff11800 0x0 0xbc>;
+ #pinctrl-cells = <1>;
+ pinctrl-single,register-width = <0x20>;
+
+ i2c0_cfg_func: i2c0_cfg_func {
+ pinctrl-single,pins = <
+ 0x01c 0x0 /* I2C0_SCL */
+ 0x020 0x0 /* I2C0_SDA */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_UP
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+
+ i2c1_cfg_func: i2c1_cfg_func {
+ pinctrl-single,pins = <
+ 0x024 0x0 /* I2C1_SCL */
+ 0x028 0x0 /* I2C1_SDA */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_UP
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+
+ i2c7_cfg_func: i2c7_cfg_func {
+ pinctrl-single,pins = <
+ 0x02c 0x0 /* I2C7_SCL */
+ 0x030 0x0 /* I2C7_SDA */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_UP
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+
+ slimbus_cfg_func: slimbus_cfg_func {
+ pinctrl-single,pins = <
+ 0x034 0x0 /* SLIMBUS_CLK */
+ 0x038 0x0 /* SLIMBUS_DATA */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_UP
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+
+ i2s0_cfg_func: i2s0_cfg_func {
+ pinctrl-single,pins = <
+ 0x040 0x0 /* I2S0_DI */
+ 0x044 0x0 /* I2S0_DO */
+ 0x048 0x0 /* I2S0_XCLK */
+ 0x04c 0x0 /* I2S0_XFS */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_UP
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+
+ i2s2_cfg_func: i2s2_cfg_func {
+ pinctrl-single,pins = <
+ 0x050 0x0 /* I2S2_DI */
+ 0x054 0x0 /* I2S2_DO */
+ 0x058 0x0 /* I2S2_XCLK */
+ 0x05c 0x0 /* I2S2_XFS */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_UP
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+
+ pcie_cfg_func: pcie_cfg_func {
+ pinctrl-single,pins = <
+ 0x094 0x0 /* PCIE_CLKREQ_N */
+ 0x098 0x0 /* PCIE_WAKE_N */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_UP
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+
+ spi2_cfg_func: spi2_cfg_func {
+ pinctrl-single,pins = <
+ 0x09c 0x0 /* SPI2_CLK */
+ 0x0a0 0x0 /* SPI2_DI */
+ 0x0a4 0x0 /* SPI2_DO */
+ 0x0a8 0x0 /* SPI2_CS0_N */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_UP
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+
+ usb_cfg_func: usb_cfg_func {
+ pinctrl-single,pins = <
+ 0x0ac 0x0 /* GPIO_219 */
+ >;
+ pinctrl-single,bias-pulldown = <
+ PULL_DIS
+ PULL_DOWN
+ PULL_DIS
+ PULL_DOWN
+ >;
+ pinctrl-single,bias-pullup = <
+ PULL_UP
+ PULL_UP
+ PULL_DIS
+ PULL_UP
+ >;
+ pinctrl-single,drive-strength = <
+ DRIVE7_02MA DRIVE6_MASK
+ >;
+ };
+ };
};
};
diff --git a/arch/arm64/boot/dts/hisilicon/hip07-d05.dts b/arch/arm64/boot/dts/hisilicon/hip07-d05.dts
index f5d7f0889b41..fe7c16c36025 100644
--- a/arch/arm64/boot/dts/hisilicon/hip07-d05.dts
+++ b/arch/arm64/boot/dts/hisilicon/hip07-d05.dts
@@ -84,3 +84,7 @@
&sas1 {
status = "ok";
};
+
+&p0_pcie2_a {
+ status = "ok";
+};
diff --git a/arch/arm64/boot/dts/hisilicon/hip07.dtsi b/arch/arm64/boot/dts/hisilicon/hip07.dtsi
index 283d7b532e16..2c01a21c3665 100644
--- a/arch/arm64/boot/dts/hisilicon/hip07.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hip07.dtsi
@@ -1534,5 +1534,27 @@
<637 1>,<638 1>,<639 1>;
status = "disabled";
};
+
+ p0_pcie2_a: pcie@a00a0000 {
+ compatible = "hisilicon,hip07-pcie-ecam";
+ reg = <0 0xaf800000 0 0x800000>,
+ <0 0xa00a0000 0 0x10000>;
+ bus-range = <0xf8 0xff>;
+ msi-map = <0xf800 &p0_its_dsa_a 0xf800 0x800>;
+ msi-map-mask = <0xffff>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ dma-coherent;
+ ranges = <0x02000000 0 0xa8000000 0 0xa8000000 0 0x77f0000
+ 0x01000000 0 0 0 0xaf7f0000 0 0x10000>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0xf800 0 0 7>;
+ interrupt-map = <0x0 0 0 1 &mbigen_pcie2_a 671 4
+ 0x0 0 0 2 &mbigen_pcie2_a 671 4
+ 0x0 0 0 3 &mbigen_pcie2_a 671 4
+ 0x0 0 0 4 &mbigen_pcie2_a 671 4>;
+ status = "disabled";
+ };
};
};
diff --git a/arch/arm64/boot/dts/marvell/Makefile b/arch/arm64/boot/dts/marvell/Makefile
index 3e6ce6c15a74..6cff81eeaae2 100644
--- a/arch/arm64/boot/dts/marvell/Makefile
+++ b/arch/arm64/boot/dts/marvell/Makefile
@@ -8,6 +8,7 @@ dtb-$(CONFIG_ARCH_MVEBU) += armada-3720-espressobin.dtb
dtb-$(CONFIG_ARCH_MVEBU) += armada-7040-db.dtb
dtb-$(CONFIG_ARCH_MVEBU) += armada-8040-db.dtb
dtb-$(CONFIG_ARCH_MVEBU) += armada-8040-mcbin.dtb
+dtb-$(CONFIG_ARCH_MVEBU) += armada-8080-db.dtb
always := $(dtb-y)
subdir-y := $(dts-dirs)
diff --git a/arch/arm64/boot/dts/marvell/armada-3720-db.dts b/arch/arm64/boot/dts/marvell/armada-3720-db.dts
index a89855f57091..9df0f06ce607 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-db.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-db.dts
@@ -42,6 +42,10 @@
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * This file is compatible with the version 1.4 and the version 2.0 of
+ * the board, however the CON numbers are different between the 2
+ * version
*/
/dts-v1/;
@@ -76,6 +80,36 @@
compatible = "usb-nop-xceiv";
vcc-supply = <&exp_usb3_vbus>;
};
+
+ vcc_sd_reg1: regulator {
+ compatible = "regulator-gpio";
+ regulator-name = "vcc_sd1";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+
+ gpios = <&gpiosb 23 GPIO_ACTIVE_HIGH>;
+ gpios-states = <0>;
+ states = <1800000 0x1
+ 3300000 0x0>;
+ enable-active-high;
+ };
+};
+
+/* Gigabit module on CON19(V2.0)/CON21(V1.4) */
+&eth0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&rgmii_pins>;
+ phy-mode = "rgmii-id";
+ phy = <&phy0>;
+ status = "okay";
+};
+
+/* Gigabit module on CON18(V2.0)/CON20(V1.4) */
+&eth1 {
+ phy-mode = "sgmii";
+ phy = <&phy1>;
+ status = "okay";
};
&i2c0 {
@@ -108,11 +142,46 @@
};
};
+&mdio {
+ status = "okay";
+ phy0: ethernet-phy@0 {
+ reg = <0>;
+ };
+
+ phy1: ethernet-phy@1 {
+ reg = <1>;
+ };
+};
+
+/* CON15(V2.0)/CON17(V1.4) : PCIe / CON15(V2.0)/CON12(V1.4) :mini-PCIe */
+&pcie0 {
+ status = "okay";
+};
+
/* CON3 */
&sata {
status = "okay";
};
+&sdhci0 {
+ non-removable;
+ bus-width = <8>;
+ mmc-ddr-1_8v;
+ mmc-hs400-1_8v;
+ marvell,pad-type = "fixed-1-8v";
+ status = "okay";
+};
+
+/* SD slot module on CON14(V2.0)/CON15(V1.4) */
+&sdhci1 {
+ wp-inverted;
+ cd-gpios = <&gpiosb 2 GPIO_ACTIVE_LOW>;
+ bus-width = <4>;
+ marvell,pad-type = "sd";
+ vqmmc-supply = <&vcc_sd_reg1>;
+ status = "okay";
+};
+
&spi0 {
status = "okay";
pinctrl-names = "default";
@@ -145,60 +214,23 @@
};
};
-/* Exported on the micro USB connector CON32 through an FTDI */
+/*
+ * Exported on the micro USB connector CON30(V2.0)/CON32(V1.4) through
+ * an FTDI
+ */
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart1_pins>;
status = "okay";
};
-&sdhci0 {
- non-removable;
- bus-width = <8>;
- mmc-ddr-1_8v;
- mmc-hs400-1_8v;
- marvell,pad-type = "fixed-1-8v";
+/* CON27(V2.0)/CON29(V1.4) */
+&usb2 {
status = "okay";
};
-/* CON31 */
+/* CON29(V2.0)/CON31(V1.4) */
&usb3 {
status = "okay";
usb-phy = <&usb3_phy>;
};
-
-/* CON17 (PCIe) / CON12 (mini-PCIe) */
-&pcie0 {
- status = "okay";
-};
-
-/* CON27 */
-&usb2 {
- status = "okay";
-};
-
-
-&mdio {
- status = "okay";
- phy0: ethernet-phy@0 {
- reg = <0>;
- };
-
- phy1: ethernet-phy@1 {
- reg = <1>;
- };
-};
-
-&eth0 {
- pinctrl-names = "default";
- pinctrl-0 = <&rgmii_pins>;
- phy-mode = "rgmii-id";
- phy = <&phy0>;
- status = "okay";
-};
-
-&eth1 {
- phy-mode = "sgmii";
- phy = <&phy1>;
- status = "okay";
-};
diff --git a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
index e3a136ed77b0..2ce52ba74f73 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
@@ -45,6 +45,7 @@
/dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
#include "armada-372x.dtsi"
/ {
@@ -59,6 +60,20 @@
device_type = "memory";
reg = <0x00000000 0x00000000 0x00000000 0x20000000>;
};
+
+ vcc_sd_reg1: regulator {
+ compatible = "regulator-gpio";
+ regulator-name = "vcc_sd1";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+
+ gpios = <&gpionb 4 GPIO_ACTIVE_HIGH>;
+ gpios-states = <0>;
+ states = <1800000 0x1
+ 3300000 0x0>;
+ enable-active-high;
+ };
};
/* J9 */
@@ -71,6 +86,16 @@
status = "okay";
};
+/* J1 */
+&sdhci1 {
+ wp-inverted;
+ bus-width = <4>;
+ cd-gpios = <&gpionb 3 GPIO_ACTIVE_LOW>;
+ marvell,pad-type = "sd";
+ vqmmc-supply = <&vcc_sd_reg1>;
+ status = "okay";
+};
+
/* Exported on the micro USB connector J5 through an FTDI */
&uart0 {
status = "okay";
@@ -81,6 +106,11 @@
status = "okay";
};
+/* J8 */
+&usb2 {
+ status = "okay";
+};
+
&mdio {
switch0: switch0@1 {
compatible = "marvell,mv88e6085";
diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
index 4d495ec39202..8c0cf7efac65 100644
--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
@@ -75,14 +75,15 @@
timer {
compatible = "arm,armv8-timer";
- interrupts = <GIC_PPI 13
- (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>,
- <GIC_PPI 14
- (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>,
- <GIC_PPI 11
- (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>,
- <GIC_PPI 10
- (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>;
+ interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_PPI 14 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_PPI 10 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ pmu {
+ compatible = "arm,armv8-pmuv3";
+ interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_HIGH>;
};
soc {
@@ -163,7 +164,7 @@
pinctrl_nb: pinctrl@13800 {
compatible = "marvell,armada3710-nb-pinctrl",
- "syscon", "simple-mfd";
+ "syscon", "simple-mfd";
reg = <0x13800 0x100>, <0x13C00 0x20>;
gpionb: gpio {
#gpio-cells = <2>;
@@ -219,11 +220,11 @@
pinctrl_sb: pinctrl@18800 {
compatible = "marvell,armada3710-sb-pinctrl",
- "syscon", "simple-mfd";
+ "syscon", "simple-mfd";
reg = <0x18800 0x100>, <0x18C00 0x20>;
gpiosb: gpio {
#gpio-cells = <2>;
- gpio-ranges = <&pinctrl_sb 0 0 29>;
+ gpio-ranges = <&pinctrl_sb 0 0 30>;
gpio-controller;
interrupts =
<GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>,
@@ -281,8 +282,8 @@
xor@60900 {
compatible = "marvell,armada-3700-xor";
- reg = <0x60900 0x100
- 0x60b00 0x100>;
+ reg = <0x60900 0x100>,
+ <0x60b00 0x100>;
xor10 {
interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
@@ -292,11 +293,22 @@
};
};
+ sdhci1: sdhci@d0000 {
+ compatible = "marvell,armada-3700-sdhci",
+ "marvell,sdhci-xenon";
+ reg = <0xd0000 0x300>,
+ <0x1e808 0x4>;
+ interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&nb_periph_clk 0>;
+ clock-names = "core";
+ status = "disabled";
+ };
+
sdhci0: sdhci@d8000 {
compatible = "marvell,armada-3700-sdhci",
- "marvell,sdhci-xenon";
- reg = <0xd8000 0x300
- 0x17808 0x4>;
+ "marvell,sdhci-xenon";
+ reg = <0xd8000 0x300>,
+ <0x17808 0x4>;
interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&nb_periph_clk 0>;
clock-names = "core";
@@ -315,7 +327,11 @@
#interrupt-cells = <3>;
interrupt-controller;
reg = <0x1d00000 0x10000>, /* GICD */
- <0x1d40000 0x40000>; /* GICR */
+ <0x1d40000 0x40000>, /* GICR */
+ <0x1d80000 0x2000>, /* GICC */
+ <0x1d90000 0x2000>, /* GICH */
+ <0x1da0000 0x20000>; /* GICV */
+ interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
};
};
diff --git a/arch/arm64/boot/dts/marvell/armada-7020.dtsi b/arch/arm64/boot/dts/marvell/armada-7020.dtsi
index 975e73302753..4ab012991d9d 100644
--- a/arch/arm64/boot/dts/marvell/armada-7020.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-7020.dtsi
@@ -46,7 +46,7 @@
*/
#include "armada-ap806-dual.dtsi"
-#include "armada-cp110-master.dtsi"
+#include "armada-70x0.dtsi"
/ {
model = "Marvell Armada 7020";
diff --git a/arch/arm64/boot/dts/marvell/armada-7040-db.dts b/arch/arm64/boot/dts/marvell/armada-7040-db.dts
index 12442329b80f..9c3bdf87e543 100644
--- a/arch/arm64/boot/dts/marvell/armada-7040-db.dts
+++ b/arch/arm64/boot/dts/marvell/armada-7040-db.dts
@@ -44,6 +44,7 @@
* Device Tree file for Marvell Armada 7040 Development board platform
*/
+#include <dt-bindings/gpio/gpio.h>
#include "armada-7040.dtsi"
/ {
@@ -59,6 +60,34 @@
device_type = "memory";
reg = <0x0 0x0 0x0 0x80000000>;
};
+
+ cpm_reg_usb3_0_vbus: cpm-usb3-0-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usb3h0-vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ enable-active-high;
+ gpio = <&expander0 0 GPIO_ACTIVE_HIGH>;
+ };
+
+ cpm_reg_usb3_1_vbus: cpm-usb3-1-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usb3h1-vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ enable-active-high;
+ gpio = <&expander0 1 GPIO_ACTIVE_HIGH>;
+ };
+
+ cpm_usb3_0_phy: cpm-usb3-0-phy {
+ compatible = "usb-nop-xceiv";
+ vcc-supply = <&cpm_reg_usb3_0_vbus>;
+ };
+
+ cpm_usb3_1_phy: cpm-usb3-1-phy {
+ compatible = "usb-nop-xceiv";
+ vcc-supply = <&cpm_reg_usb3_1_vbus>;
+ };
};
&i2c0 {
@@ -105,6 +134,14 @@
&cpm_i2c0 {
status = "okay";
clock-frequency = <100000>;
+
+ expander0: pca9555@21 {
+ compatible = "nxp,pca9555";
+ pinctrl-names = "default";
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0x21>;
+ };
};
&cpm_spi1 {
@@ -140,10 +177,12 @@
};
&cpm_usb3_0 {
+ usb-phy = <&cpm_usb3_0_phy>;
status = "okay";
};
&cpm_usb3_1 {
+ usb-phy = <&cpm_usb3_1_phy>;
status = "okay";
};
@@ -162,6 +201,8 @@
};
&cpm_mdio {
+ status = "okay";
+
phy0: ethernet-phy@0 {
reg = <0>;
};
@@ -185,7 +226,3 @@
phy = <&phy1>;
phy-mode = "rgmii-id";
};
-
-&cpm_crypto {
- status = "okay";
-};
diff --git a/arch/arm64/boot/dts/marvell/armada-7040.dtsi b/arch/arm64/boot/dts/marvell/armada-7040.dtsi
index 78d995d62707..cbe460b8fc00 100644
--- a/arch/arm64/boot/dts/marvell/armada-7040.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-7040.dtsi
@@ -46,7 +46,7 @@
*/
#include "armada-ap806-quad.dtsi"
-#include "armada-cp110-master.dtsi"
+#include "armada-70x0.dtsi"
/ {
model = "Marvell Armada 7040";
diff --git a/arch/arm64/boot/dts/marvell/armada-70x0.dtsi b/arch/arm64/boot/dts/marvell/armada-70x0.dtsi
new file mode 100644
index 000000000000..860b6ae9dcc5
--- /dev/null
+++ b/arch/arm64/boot/dts/marvell/armada-70x0.dtsi
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2017 Marvell Technology Group Ltd.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPLv2 or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * Device Tree file for the Armada 70x0 SoC
+ */
+
+#include "armada-cp110-master.dtsi"
+
+/ {
+ aliases {
+ gpio1 = &cpm_gpio1;
+ gpio2 = &cpm_gpio2;
+ };
+};
+
+&cpm_gpio1 {
+ status = "okay";
+};
+
+&cpm_gpio2 {
+ status = "okay";
+};
+
+&cpm_syscon0 {
+ cpm_pinctrl: pinctrl {
+ compatible = "marvell,armada-7k-pinctrl";
+ };
+};
diff --git a/arch/arm64/boot/dts/marvell/armada-8020.dtsi b/arch/arm64/boot/dts/marvell/armada-8020.dtsi
index 7c08f1f28d9e..0ba0bc942598 100644
--- a/arch/arm64/boot/dts/marvell/armada-8020.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-8020.dtsi
@@ -46,8 +46,7 @@
*/
#include "armada-ap806-dual.dtsi"
-#include "armada-cp110-master.dtsi"
-#include "armada-cp110-slave.dtsi"
+#include "armada-80x0.dtsi"
/ {
model = "Marvell Armada 8020";
diff --git a/arch/arm64/boot/dts/marvell/armada-8040-db.dts b/arch/arm64/boot/dts/marvell/armada-8040-db.dts
index dc0d084005b2..0d7b2ae46610 100644
--- a/arch/arm64/boot/dts/marvell/armada-8040-db.dts
+++ b/arch/arm64/boot/dts/marvell/armada-8040-db.dts
@@ -44,6 +44,7 @@
* Device Tree file for Marvell Armada 8040 Development board platform
*/
+#include <dt-bindings/gpio/gpio.h>
#include "armada-8040.dtsi"
/ {
@@ -59,6 +60,48 @@
device_type = "memory";
reg = <0x0 0x0 0x0 0x80000000>;
};
+
+ cpm_reg_usb3_0_vbus: cpm-usb3-0-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "cpm-usb3h0-vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ enable-active-high;
+ gpio = <&expander0 0 GPIO_ACTIVE_HIGH>;
+ };
+
+ cpm_reg_usb3_1_vbus: cpm-usb3-1-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "cpm-usb3h1-vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ enable-active-high;
+ gpio = <&expander0 1 GPIO_ACTIVE_HIGH>;
+ };
+
+ cpm_usb3_0_phy: cpm-usb3-0-phy {
+ compatible = "usb-nop-xceiv";
+ vcc-supply = <&cpm_reg_usb3_0_vbus>;
+ };
+
+ cpm_usb3_1_phy: cpm-usb3-1-phy {
+ compatible = "usb-nop-xceiv";
+ vcc-supply = <&cpm_reg_usb3_1_vbus>;
+ };
+
+ cps_reg_usb3_0_vbus: cps-usb3-0-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "cps-usb3h0-vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ enable-active-high;
+ gpio = <&expander1 0 GPIO_ACTIVE_HIGH>;
+ };
+
+ cps_usb3_0_phy: cps-usb3-0-phy {
+ compatible = "usb-nop-xceiv";
+ vcc-supply = <&cps_reg_usb3_0_vbus>;
+ };
};
&i2c0 {
@@ -107,6 +150,25 @@
&cpm_i2c0 {
status = "okay";
clock-frequency = <100000>;
+
+ /* U31 */
+ expander0: pca9555@21 {
+ compatible = "nxp,pca9555";
+ pinctrl-names = "default";
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0x21>;
+ };
+
+ /* U25 */
+ expander1: pca9555@25 {
+ compatible = "nxp,pca9555";
+ pinctrl-names = "default";
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0x25>;
+ };
+
};
/* CON4 on CP0 expansion */
@@ -116,15 +178,19 @@
/* CON9 on CP0 expansion */
&cpm_usb3_0 {
+ usb-phy = <&cpm_usb3_0_phy>;
status = "okay";
};
/* CON10 on CP0 expansion */
&cpm_usb3_1 {
+ usb-phy = <&cpm_usb3_1_phy>;
status = "okay";
};
&cpm_mdio {
+ status = "okay";
+
phy1: ethernet-phy@1 {
reg = <1>;
};
@@ -140,10 +206,6 @@
phy-mode = "rgmii-id";
};
-&cpm_crypto {
- status = "okay";
-};
-
/* CON5 on CP1 expansion */
&cps_pcie2 {
status = "okay";
@@ -161,6 +223,7 @@
/* CON9 on CP1 expansion */
&cps_usb3_0 {
+ usb-phy = <&cps_usb3_0_phy>;
status = "okay";
};
@@ -169,6 +232,24 @@
status = "okay";
};
+&cps_mdio {
+ status = "okay";
+
+ phy0: ethernet-phy@0 {
+ reg = <0>;
+ };
+};
+
+&cps_ethernet {
+ status = "okay";
+};
+
+&cps_eth1 {
+ status = "okay";
+ phy = <&phy0>;
+ phy-mode = "rgmii-id";
+};
+
&ap_sdhci0 {
status = "okay";
bus-width = <4>;
diff --git a/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts b/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts
index f7bb0cc03147..acf5c7d16d79 100644
--- a/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts
+++ b/arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts
@@ -46,11 +46,17 @@
#include "armada-8040.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
/ {
model = "Marvell 8040 MACHIATOBin";
compatible = "marvell,armada8040-mcbin", "marvell,armada8040",
"marvell,armada-ap806-quad", "marvell,armada-ap806";
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
memory@00000000 {
device_type = "memory";
reg = <0x0 0x0 0x0 0x80000000>;
@@ -77,11 +83,13 @@
v_5v0_usb3_hst_vbus: regulator-usb3-vbus0 {
compatible = "regulator-fixed";
+ enable-active-high;
+ gpio = <&cpm_gpio2 15 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&cpm_xhci_vbus_pins>;
regulator-name = "v_5v0_usb3_hst_vbus";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
- /* actually GPIO controlled, but 8k has no GPIO support yet */
- regulator-always-on;
status = "okay";
};
@@ -95,9 +103,127 @@
status = "okay";
};
+&ap_sdhci0 {
+ bus-width = <8>;
+ /*
+ * Not stable in HS modes - phy needs "more calibration", so add
+ * the "slow-mode" and disable SDR104, SDR50 and DDR50 modes.
+ */
+ marvell,xenon-phy-slow-mode;
+ no-1-8-v;
+ no-sd;
+ no-sdio;
+ non-removable;
+ status = "okay";
+ vqmmc-supply = <&v_vddo_h>;
+};
+
&cpm_i2c0 {
clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&cpm_i2c0_pins>;
+ status = "okay";
+};
+
+&cpm_i2c1 {
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&cpm_i2c1_pins>;
+ status = "okay";
+
+ i2c-switch@70 {
+ compatible = "nxp,pca9548";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x70>;
+
+ sfpp0_i2c: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+ sfpp1_i2c: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ sfp_1g_i2c: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+ };
+};
+
+&cpm_mdio {
+ pinctrl-names = "default";
+ pinctrl-0 = <&cpm_ge_mdio_pins>;
+ status = "okay";
+
+ ge_phy: ethernet-phy@0 {
+ reg = <0>;
+ };
+};
+
+&cpm_pcie0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&cpm_pcie_pins>;
+ num-lanes = <4>;
+ num-viewport = <8>;
+ reset-gpio = <&cpm_gpio1 20 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+&cpm_pinctrl {
+ cpm_ge_mdio_pins: ge-mdio-pins {
+ marvell,pins = "mpp32", "mpp34";
+ marvell,function = "ge";
+ };
+ cpm_i2c1_pins: i2c1-pins {
+ marvell,pins = "mpp35", "mpp36";
+ marvell,function = "i2c1";
+ };
+ cpm_i2c0_pins: i2c0-pins {
+ marvell,pins = "mpp37", "mpp38";
+ marvell,function = "i2c0";
+ };
+ cpm_xhci_vbus_pins: xhci0-vbus-pins {
+ marvell,pins = "mpp47";
+ marvell,function = "gpio";
+ };
+ cpm_pcie_pins: pcie-pins {
+ marvell,pins = "mpp52";
+ marvell,function = "gpio";
+ };
+ cpm_sdhci_pins: sdhci-pins {
+ marvell,pins = "mpp55", "mpp56", "mpp57", "mpp58", "mpp59",
+ "mpp60", "mpp61";
+ marvell,function = "sdio";
+ };
+};
+
+&cpm_xmdio {
+ status = "okay";
+
+ phy0: ethernet-phy@0 {
+ compatible = "ethernet-phy-ieee802.3-c45";
+ reg = <0>;
+ };
+
+ phy8: ethernet-phy@8 {
+ compatible = "ethernet-phy-ieee802.3-c45";
+ reg = <8>;
+ };
+};
+
+&cpm_ethernet {
+ status = "okay";
+};
+
+&cpm_eth0 {
status = "okay";
+ phy = <&phy0>;
+ phy-mode = "10gbase-kr";
};
&cpm_sata0 {
@@ -105,6 +231,16 @@
status = "okay";
};
+&cpm_sdhci0 {
+ /* U6 */
+ broken-cd;
+ bus-width = <4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&cpm_sdhci_pins>;
+ status = "okay";
+ vqmmc-supply = <&v_3_3>;
+};
+
&cpm_usb3_0 {
/* J38? - USB2.0 only */
status = "okay";
@@ -115,6 +251,30 @@
status = "okay";
};
+&cps_ethernet {
+ status = "okay";
+};
+
+&cps_eth0 {
+ status = "okay";
+ phy = <&phy8>;
+ phy-mode = "10gbase-kr";
+};
+
+&cps_eth1 {
+ /* CPS Lane 0 - J5 (Gigabit RJ45) */
+ status = "okay";
+ phy = <&ge_phy>;
+ phy-mode = "sgmii";
+};
+
+&cps_pinctrl {
+ cps_spi1_pins: spi1-pins {
+ marvell,pins = "mpp12", "mpp13", "mpp14", "mpp15", "mpp16";
+ marvell,function = "spi1";
+ };
+};
+
&cps_sata0 {
/* CPS Lane 1 - U32 */
/* CPS Lane 3 - U31 */
@@ -122,6 +282,8 @@
};
&cps_spi1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&cps_spi1_pins>;
status = "okay";
spi-flash@0 {
diff --git a/arch/arm64/boot/dts/marvell/armada-8040.dtsi b/arch/arm64/boot/dts/marvell/armada-8040.dtsi
index 33813a75bc30..60fe84f5cbcc 100644
--- a/arch/arm64/boot/dts/marvell/armada-8040.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-8040.dtsi
@@ -46,8 +46,7 @@
*/
#include "armada-ap806-quad.dtsi"
-#include "armada-cp110-master.dtsi"
-#include "armada-cp110-slave.dtsi"
+#include "armada-80x0.dtsi"
/ {
model = "Marvell Armada 8040";
diff --git a/arch/arm64/boot/dts/marvell/armada-8080-db.dts b/arch/arm64/boot/dts/marvell/armada-8080-db.dts
new file mode 100644
index 000000000000..707af833832b
--- /dev/null
+++ b/arch/arm64/boot/dts/marvell/armada-8080-db.dts
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2017 Marvell Technology Group Ltd.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPLv2 or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * Device Tree file for Marvell Armada-8080 Development board platform
+ */
+
+#include "armada-8080.dtsi"
+
+/ {
+ model = "Marvell 8080 board";
+ compatible = "marvell,armada-8080-db", "marvell,armada-8080",
+ "marvell,armada-ap810-octa", "marvell,armada-ap810";
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ memory@00000000 {
+ device_type = "memory";
+ reg = <0x0 0x0 0x0 0x80000000>;
+ };
+};
+
+&uart0_ap0 {
+ clock-frequency = <384000>;
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/marvell/armada-8080.dtsi b/arch/arm64/boot/dts/marvell/armada-8080.dtsi
new file mode 100644
index 000000000000..d5535b716735
--- /dev/null
+++ b/arch/arm64/boot/dts/marvell/armada-8080.dtsi
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2017 Marvell Technology Group Ltd.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPLv2 or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * Device Tree file for Marvell Armada-8080 SoC, made of an AP810 OCTA.
+ */
+
+#include "armada-ap810-ap0-octa-core.dtsi"
+
+/ {
+ model = "Marvell 8080 board";
+ compatible = "marvell,armada-8080", "marvell,armada-ap810-octa",
+ "marvell,armada-ap810";
+};
diff --git a/arch/arm64/boot/dts/marvell/armada-80x0.dtsi b/arch/arm64/boot/dts/marvell/armada-80x0.dtsi
new file mode 100644
index 000000000000..666ebe96ba0d
--- /dev/null
+++ b/arch/arm64/boot/dts/marvell/armada-80x0.dtsi
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2017 Marvell Technology Group Ltd.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPLv2 or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * Device Tree file for the Armada 80x0 SoC family
+ */
+
+#include "armada-cp110-master.dtsi"
+#include "armada-cp110-slave.dtsi"
+
+/ {
+ aliases {
+ gpio1 = &cps_gpio1;
+ gpio2 = &cpm_gpio2;
+ };
+};
+
+/* The 80x0 has two CP blocks, but uses only one block from each. */
+&cps_gpio1 {
+ status = "okay";
+};
+
+&cpm_gpio2 {
+ status = "okay";
+};
+
+&cpm_syscon0 {
+ cpm_pinctrl: pinctrl {
+ compatible = "marvell,armada-8k-cpm-pinctrl";
+ };
+};
+
+&cps_syscon0 {
+ cps_pinctrl: pinctrl {
+ compatible = "marvell,armada-8k-cps-pinctrl";
+ };
+};
diff --git a/arch/arm64/boot/dts/marvell/armada-ap806.dtsi b/arch/arm64/boot/dts/marvell/armada-ap806.dtsi
index fe41bf9c301e..30d48ecf46e0 100644
--- a/arch/arm64/boot/dts/marvell/armada-ap806.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-ap806.dtsi
@@ -57,6 +57,7 @@
aliases {
serial0 = &uart0;
serial1 = &uart1;
+ gpio0 = &ap_gpio;
};
psci {
@@ -146,6 +147,13 @@
marvell,spi-base = <128>, <136>, <144>, <152>;
};
+ gicp: gicp@3f0040 {
+ compatible = "marvell,ap806-gicp";
+ reg = <0x3f0040 0x10>;
+ marvell,spi-ranges = <64 64>, <288 64>;
+ msi-controller;
+ };
+
pic: interrupt-controller@3f0100 {
compatible = "marvell,armada-8k-pic";
reg = <0x3f0100 0x10>;
@@ -159,6 +167,7 @@
reg = <0x400000 0x1000>,
<0x410000 0x1000>;
msi-parent = <&gic_v2m0>;
+ clocks = <&ap_clk 3>;
dma-coherent;
};
@@ -167,6 +176,7 @@
reg = <0x420000 0x1000>,
<0x430000 0x1000>;
msi-parent = <&gic_v2m0>;
+ clocks = <&ap_clk 3>;
dma-coherent;
};
@@ -175,6 +185,7 @@
reg = <0x440000 0x1000>,
<0x450000 0x1000>;
msi-parent = <&gic_v2m0>;
+ clocks = <&ap_clk 3>;
dma-coherent;
};
@@ -183,6 +194,7 @@
reg = <0x460000 0x1000>,
<0x470000 0x1000>;
msi-parent = <&gic_v2m0>;
+ clocks = <&ap_clk 3>;
dma-coherent;
};
@@ -193,7 +205,7 @@
#size-cells = <0>;
cell-index = <0>;
interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&ap_syscon 3>;
+ clocks = <&ap_clk 3>;
status = "disabled";
};
@@ -204,7 +216,7 @@
#size-cells = <0>;
interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
timeout-ms = <1000>;
- clocks = <&ap_syscon 3>;
+ clocks = <&ap_clk 3>;
status = "disabled";
};
@@ -214,7 +226,7 @@
reg-shift = <2>;
interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
reg-io-width = <1>;
- clocks = <&ap_syscon 3>;
+ clocks = <&ap_clk 3>;
status = "disabled";
};
@@ -224,7 +236,7 @@
reg-shift = <2>;
interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
reg-io-width = <1>;
- clocks = <&ap_syscon 3>;
+ clocks = <&ap_clk 3>;
status = "disabled";
};
@@ -234,21 +246,33 @@
reg = <0x6e0000 0x300>;
interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
clock-names = "core";
- clocks = <&ap_syscon 4>;
+ clocks = <&ap_clk 4>;
dma-coherent;
marvell,xenon-phy-slow-mode;
status = "disabled";
};
ap_syscon: system-controller@6f4000 {
- compatible = "marvell,ap806-system-controller",
- "syscon";
- #clock-cells = <1>;
- clock-output-names = "ap-cpu-cluster-0",
- "ap-cpu-cluster-1",
- "ap-fixed", "ap-mss",
- "ap-emmc";
- reg = <0x6f4000 0x1000>;
+ compatible = "syscon", "simple-mfd";
+ reg = <0x6f4000 0x2000>;
+
+ ap_clk: clock {
+ compatible = "marvell,ap806-clock";
+ #clock-cells = <1>;
+ };
+
+ ap_pinctrl: pinctrl {
+ compatible = "marvell,ap806-pinctrl";
+ };
+
+ ap_gpio: gpio@1040 {
+ compatible = "marvell,armada-8k-gpio";
+ offset = <0x1040>;
+ ngpios = <20>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&ap_pinctrl 0 0 20>;
+ };
};
};
};
diff --git a/arch/arm64/boot/dts/marvell/armada-ap810-ap0-octa-core.dtsi b/arch/arm64/boot/dts/marvell/armada-ap810-ap0-octa-core.dtsi
new file mode 100644
index 000000000000..bf1b22b70384
--- /dev/null
+++ b/arch/arm64/boot/dts/marvell/armada-ap810-ap0-octa-core.dtsi
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2017 Marvell Technology Group Ltd.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPLv2 or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * Device Tree file for Marvell Armada AP810 OCTA cores.
+ */
+
+#include "armada-ap810-ap0.dtsi"
+
+/ {
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "marvell,armada-ap810-octa";
+
+ cpu@000 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72", "arm,armv8";
+ reg = <0x000>;
+ enable-method = "psci";
+ };
+ cpu@001 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72", "arm,armv8";
+ reg = <0x001>;
+ enable-method = "psci";
+ };
+ cpu@100 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72", "arm,armv8";
+ reg = <0x100>;
+ enable-method = "psci";
+ };
+ cpu@101 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72", "arm,armv8";
+ reg = <0x101>;
+ enable-method = "psci";
+ };
+ cpu@200 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72", "arm,armv8";
+ reg = <0x200>;
+ enable-method = "psci";
+ };
+ cpu@201 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72", "arm,armv8";
+ reg = <0x201>;
+ enable-method = "psci";
+ };
+ cpu@300 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72", "arm,armv8";
+ reg = <0x300>;
+ enable-method = "psci";
+ };
+ cpu@301 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72", "arm,armv8";
+ reg = <0x301>;
+ enable-method = "psci";
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/marvell/armada-ap810-ap0.dtsi b/arch/arm64/boot/dts/marvell/armada-ap810-ap0.dtsi
new file mode 100644
index 000000000000..7e6f039f0f80
--- /dev/null
+++ b/arch/arm64/boot/dts/marvell/armada-ap810-ap0.dtsi
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2017 Marvell Technology Group Ltd.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPLv2 or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * Device Tree file for Marvell Armada AP810.
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/dts-v1/;
+
+/ {
+ model = "Marvell Armada AP810";
+ compatible = "marvell,armada-ap810";
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ aliases {
+ serial0 = &uart0_ap0;
+ serial1 = &uart1_ap0;
+ };
+
+ psci {
+ compatible = "arm,psci-0.2";
+ method = "smc";
+ };
+
+ ap810-ap0 {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ compatible = "simple-bus";
+ interrupt-parent = <&gic>;
+ ranges;
+
+ config-space@e8000000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+ ranges = <0x0 0x0 0xe8000000 0x4000000>;
+ interrupt-parent = <&gic>;
+
+ gic: interrupt-controller@3000000 {
+ compatible = "arm,gic-v3";
+ #interrupt-cells = <3>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ interrupt-controller;
+ interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
+ ranges;
+
+ reg = <0x3000000 0x10000>, /* GICD */
+ <0x3060000 0x100000>, /* GICR */
+ <0x00c0000 0x2000>, /* GICC */
+ <0x00d0000 0x1000>, /* GICH */
+ <0x00e0000 0x2000>; /* GICV */
+
+ gic_its_ap0: interrupt-controller@3040000 {
+ compatible = "arm,gic-v3-its";
+ msi-controller;
+ #msi-cells = <1>;
+ reg = <0x3040000 0x20000>;
+ };
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
+ };
+
+ xor@400000 {
+ compatible = "marvell,armada-7k-xor", "marvell,xor-v2";
+ reg = <0x400000 0x1000>,
+ <0x410000 0x1000>;
+ msi-parent = <&gic_its_ap0 0xa0>;
+ dma-coherent;
+ };
+
+ xor@420000 {
+ compatible = "marvell,armada-7k-xor", "marvell,xor-v2";
+ reg = <0x420000 0x1000>,
+ <0x430000 0x1000>;
+ msi-parent = <&gic_its_ap0 0xa1>;
+ dma-coherent;
+ };
+
+ xor@440000 {
+ compatible = "marvell,armada-7k-xor", "marvell,xor-v2";
+ reg = <0x440000 0x1000>,
+ <0x450000 0x1000>;
+ msi-parent = <&gic_its_ap0 0xa2>;
+ dma-coherent;
+ };
+
+ xor@460000 {
+ compatible = "marvell,armada-7k-xor", "marvell,xor-v2";
+ reg = <0x460000 0x1000>,
+ <0x470000 0x1000>;
+ msi-parent = <&gic_its_ap0 0xa3>;
+ dma-coherent;
+ };
+
+ uart0_ap0: serial@512000 {
+ compatible = "snps,dw-apb-uart";
+ reg = <0x512000 0x100>;
+ reg-shift = <2>;
+ interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>;
+ reg-io-width = <1>;
+ status = "disabled";
+ };
+
+ uart1_ap0: serial@512100 {
+ compatible = "snps,dw-apb-uart";
+ reg = <0x512100 0x100>;
+ reg-shift = <2>;
+ interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
+ reg-io-width = <1>;
+ status = "disabled";
+ };
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi b/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
index b4bc42ece754..f2aa2a81de4d 100644
--- a/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
@@ -44,45 +44,65 @@
* Device Tree file for Marvell Armada CP110 Master.
*/
+#define ICU_GRP_NSR 0x0
+
/ {
cp110-master {
#address-cells = <2>;
#size-cells = <2>;
compatible = "simple-bus";
- interrupt-parent = <&gic>;
+ interrupt-parent = <&cpm_icu>;
ranges;
config-space@f2000000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "simple-bus";
- interrupt-parent = <&gic>;
ranges = <0x0 0x0 0xf2000000 0x2000000>;
cpm_ethernet: ethernet@0 {
compatible = "marvell,armada-7k-pp22";
reg = <0x0 0x100000>, <0x129000 0xb000>;
- clocks = <&cpm_syscon0 1 3>, <&cpm_syscon0 1 9>, <&cpm_syscon0 1 5>;
+ clocks = <&cpm_clk 1 3>, <&cpm_clk 1 9>, <&cpm_clk 1 5>;
clock-names = "pp_clk", "gop_clk", "mg_clk";
+ marvell,system-controller = <&cpm_syscon0>;
status = "disabled";
dma-coherent;
cpm_eth0: eth0 {
- interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 39 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 43 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 47 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 51 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 55 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "tx-cpu0", "tx-cpu1", "tx-cpu2",
+ "tx-cpu3", "rx-shared";
port-id = <0>;
gop-port-id = <0>;
status = "disabled";
};
cpm_eth1: eth1 {
- interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 40 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 44 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 48 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 52 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 56 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "tx-cpu0", "tx-cpu1", "tx-cpu2",
+ "tx-cpu3", "rx-shared";
port-id = <1>;
gop-port-id = <2>;
status = "disabled";
};
cpm_eth2: eth2 {
- interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 41 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 45 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 49 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 53 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 57 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "tx-cpu0", "tx-cpu1", "tx-cpu2",
+ "tx-cpu3", "rx-shared";
port-id = <2>;
gop-port-id = <3>;
status = "disabled";
@@ -94,42 +114,71 @@
#size-cells = <0>;
compatible = "marvell,orion-mdio";
reg = <0x12a200 0x10>;
+ clocks = <&cpm_clk 1 9>, <&cpm_clk 1 5>;
+ status = "disabled";
};
- cpm_syscon0: system-controller@440000 {
- compatible = "marvell,cp110-system-controller0",
- "syscon";
- reg = <0x440000 0x1000>;
- #clock-cells = <2>;
- core-clock-output-names =
- "cpm-apll", "cpm-ppv2-core", "cpm-eip",
- "cpm-core", "cpm-nand-core";
- gate-clock-output-names =
- "cpm-audio", "cpm-communit", "cpm-nand",
- "cpm-ppv2", "cpm-sdio", "cpm-mg-domain",
- "cpm-mg-core", "cpm-xor1", "cpm-xor0",
- "cpm-gop-dp", "none", "cpm-pcie_x10",
- "cpm-pcie_x11", "cpm-pcie_x4", "cpm-pcie-xor",
- "cpm-sata", "cpm-sata-usb", "cpm-main",
- "cpm-sd-mmc-gop", "none", "none",
- "cpm-slow-io", "cpm-usb3h0", "cpm-usb3h1",
- "cpm-usb3dev", "cpm-eip150", "cpm-eip197";
+ cpm_xmdio: mdio@12a600 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "marvell,xmdio";
+ reg = <0x12a600 0x10>;
+ status = "disabled";
+ };
+
+ cpm_icu: interrupt-controller@1e0000 {
+ compatible = "marvell,cp110-icu";
+ reg = <0x1e0000 0x10>;
+ #interrupt-cells = <3>;
+ interrupt-controller;
+ msi-parent = <&gicp>;
};
cpm_rtc: rtc@284000 {
compatible = "marvell,armada-8k-rtc";
reg = <0x284000 0x20>, <0x284080 0x24>;
reg-names = "rtc", "rtc-soc";
- interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 77 IRQ_TYPE_LEVEL_HIGH>;
};
- cpm_sata0: sata@540000 {
- compatible = "marvell,armada-8k-ahci",
- "generic-ahci";
- reg = <0x540000 0x30000>;
- interrupts = <GIC_SPI 63 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cpm_syscon0 1 15>;
- status = "disabled";
+ cpm_syscon0: system-controller@440000 {
+ compatible = "syscon", "simple-mfd";
+ reg = <0x440000 0x1000>;
+
+ cpm_clk: clock {
+ compatible = "marvell,cp110-clock";
+ #clock-cells = <2>;
+ };
+
+ cpm_gpio1: gpio@100 {
+ compatible = "marvell,armada-8k-gpio";
+ offset = <0x100>;
+ ngpios = <32>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&cpm_pinctrl 0 0 32>;
+ interrupt-controller;
+ interrupts = <ICU_GRP_NSR 86 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 85 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 84 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 83 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ cpm_gpio2: gpio@140 {
+ compatible = "marvell,armada-8k-gpio";
+ offset = <0x140>;
+ ngpios = <31>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&cpm_pinctrl 0 32 31>;
+ interrupt-controller;
+ interrupts = <ICU_GRP_NSR 82 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 81 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 80 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 79 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
};
cpm_usb3_0: usb3@500000 {
@@ -137,8 +186,8 @@
"generic-xhci";
reg = <0x500000 0x4000>;
dma-coherent;
- interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cpm_syscon0 1 22>;
+ interrupts = <ICU_GRP_NSR 106 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpm_clk 1 22>;
status = "disabled";
};
@@ -147,8 +196,17 @@
"generic-xhci";
reg = <0x510000 0x4000>;
dma-coherent;
- interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cpm_syscon0 1 23>;
+ interrupts = <ICU_GRP_NSR 105 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpm_clk 1 23>;
+ status = "disabled";
+ };
+
+ cpm_sata0: sata@540000 {
+ compatible = "marvell,armada-8k-ahci",
+ "generic-ahci";
+ reg = <0x540000 0x30000>;
+ interrupts = <ICU_GRP_NSR 107 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpm_clk 1 15>;
status = "disabled";
};
@@ -158,7 +216,7 @@
<0x6b0000 0x1000>;
dma-coherent;
msi-parent = <&gic_v2m0>;
- clocks = <&cpm_syscon0 1 8>;
+ clocks = <&cpm_clk 1 8>;
};
cpm_xor1: xor@6c0000 {
@@ -167,7 +225,7 @@
<0x6d0000 0x1000>;
dma-coherent;
msi-parent = <&gic_v2m0>;
- clocks = <&cpm_syscon0 1 7>;
+ clocks = <&cpm_clk 1 7>;
};
cpm_spi0: spi@700600 {
@@ -176,7 +234,7 @@
#address-cells = <0x1>;
#size-cells = <0x0>;
cell-index = <1>;
- clocks = <&cpm_syscon0 1 21>;
+ clocks = <&cpm_clk 1 21>;
status = "disabled";
};
@@ -186,7 +244,7 @@
#address-cells = <1>;
#size-cells = <0>;
cell-index = <2>;
- clocks = <&cpm_syscon0 1 21>;
+ clocks = <&cpm_clk 1 21>;
status = "disabled";
};
@@ -195,8 +253,8 @@
reg = <0x701000 0x20>;
#address-cells = <1>;
#size-cells = <0>;
- interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cpm_syscon0 1 21>;
+ interrupts = <ICU_GRP_NSR 120 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpm_clk 1 21>;
status = "disabled";
};
@@ -205,25 +263,40 @@
reg = <0x701100 0x20>;
#address-cells = <1>;
#size-cells = <0>;
- interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cpm_syscon0 1 21>;
+ interrupts = <ICU_GRP_NSR 121 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpm_clk 1 21>;
+ status = "disabled";
+ };
+
+ cpm_nand: nand@720000 {
+ /*
+ * Due to the limiation of the pin available
+ * this controller is only usable on the CPM
+ * for A7K and on the CPS for A8K.
+ */
+ compatible = "marvell,armada370-nand";
+ reg = <0x720000 0x54>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ interrupts = <ICU_GRP_NSR 115 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpm_clk 1 2>;
status = "disabled";
};
cpm_trng: trng@760000 {
compatible = "marvell,armada-8k-rng", "inside-secure,safexcel-eip76";
reg = <0x760000 0x7d>;
- interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cpm_syscon0 1 25>;
+ interrupts = <ICU_GRP_NSR 95 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpm_clk 1 25>;
status = "okay";
};
cpm_sdhci0: sdhci@780000 {
compatible = "marvell,armada-cp110-sdhci";
reg = <0x780000 0x300>;
- interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 27 IRQ_TYPE_LEVEL_HIGH>;
clock-names = "core";
- clocks = <&cpm_syscon0 1 4>;
+ clocks = <&cpm_clk 1 4>;
dma-coherent;
status = "disabled";
};
@@ -231,16 +304,16 @@
cpm_crypto: crypto@800000 {
compatible = "inside-secure,safexcel-eip197";
reg = <0x800000 0x200000>;
- interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 87 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 88 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 89 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 90 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 91 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 92 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "mem", "ring0", "ring1",
"ring2", "ring3", "eip";
- clocks = <&cpm_syscon0 1 26>;
- status = "disabled";
+ clocks = <&cpm_clk 1 26>;
+ dma-coherent;
};
};
@@ -263,10 +336,10 @@
/* non-prefetchable memory */
0x82000000 0 0xf6000000 0 0xf6000000 0 0xf00000>;
interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &gic 0 GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
- interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-map = <0 0 0 0 &cpm_icu ICU_GRP_NSR 22 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 22 IRQ_TYPE_LEVEL_HIGH>;
num-lanes = <1>;
- clocks = <&cpm_syscon0 1 13>;
+ clocks = <&cpm_clk 1 13>;
status = "disabled";
};
@@ -289,11 +362,11 @@
/* non-prefetchable memory */
0x82000000 0 0xf7000000 0 0xf7000000 0 0xf00000>;
interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &gic 0 GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
- interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-map = <0 0 0 0 &cpm_icu ICU_GRP_NSR 24 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 24 IRQ_TYPE_LEVEL_HIGH>;
num-lanes = <1>;
- clocks = <&cpm_syscon0 1 11>;
+ clocks = <&cpm_clk 1 11>;
status = "disabled";
};
@@ -316,11 +389,11 @@
/* non-prefetchable memory */
0x82000000 0 0xf8000000 0 0xf8000000 0 0xf00000>;
interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &gic 0 GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
- interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-map = <0 0 0 0 &cpm_icu ICU_GRP_NSR 23 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 23 IRQ_TYPE_LEVEL_HIGH>;
num-lanes = <1>;
- clocks = <&cpm_syscon0 1 12>;
+ clocks = <&cpm_clk 1 12>;
status = "disabled";
};
};
diff --git a/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi b/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
index 6e2058847ddc..4fe70323abb3 100644
--- a/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
@@ -44,52 +44,65 @@
* Device Tree file for Marvell Armada CP110 Slave.
*/
+#define ICU_GRP_NSR 0x0
+
/ {
cp110-slave {
#address-cells = <2>;
#size-cells = <2>;
compatible = "simple-bus";
- interrupt-parent = <&gic>;
+ interrupt-parent = <&cps_icu>;
ranges;
config-space@f4000000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "simple-bus";
- interrupt-parent = <&gic>;
ranges = <0x0 0x0 0xf4000000 0x2000000>;
- cps_rtc: rtc@284000 {
- compatible = "marvell,armada-8k-rtc";
- reg = <0x284000 0x20>, <0x284080 0x24>;
- reg-names = "rtc", "rtc-soc";
- interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
- };
-
cps_ethernet: ethernet@0 {
compatible = "marvell,armada-7k-pp22";
reg = <0x0 0x100000>, <0x129000 0xb000>;
- clocks = <&cps_syscon0 1 3>, <&cps_syscon0 1 9>, <&cps_syscon0 1 5>;
+ clocks = <&cps_clk 1 3>, <&cps_clk 1 9>, <&cps_clk 1 5>;
clock-names = "pp_clk", "gop_clk", "mg_clk";
+ marvell,system-controller = <&cps_syscon0>;
status = "disabled";
dma-coherent;
cps_eth0: eth0 {
- interrupts = <GIC_SPI 261 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 39 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 43 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 47 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 51 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 55 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "tx-cpu0", "tx-cpu1", "tx-cpu2",
+ "tx-cpu3", "rx-shared";
port-id = <0>;
gop-port-id = <0>;
status = "disabled";
};
cps_eth1: eth1 {
- interrupts = <GIC_SPI 262 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 40 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 44 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 48 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 52 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 56 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "tx-cpu0", "tx-cpu1", "tx-cpu2",
+ "tx-cpu3", "rx-shared";
port-id = <1>;
gop-port-id = <2>;
status = "disabled";
};
cps_eth2: eth2 {
- interrupts = <GIC_SPI 263 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 41 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 45 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 49 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 53 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 57 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "tx-cpu0", "tx-cpu1", "tx-cpu2",
+ "tx-cpu3", "rx-shared";
port-id = <2>;
gop-port-id = <3>;
status = "disabled";
@@ -101,35 +114,72 @@
#size-cells = <0>;
compatible = "marvell,orion-mdio";
reg = <0x12a200 0x10>;
+ clocks = <&cps_clk 1 9>, <&cps_clk 1 5>;
+ status = "disabled";
+ };
+
+ cps_xmdio: mdio@12a600 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "marvell,xmdio";
+ reg = <0x12a600 0x10>;
+ status = "disabled";
+ };
+
+ cps_icu: interrupt-controller@1e0000 {
+ compatible = "marvell,cp110-icu";
+ reg = <0x1e0000 0x10>;
+ #interrupt-cells = <3>;
+ interrupt-controller;
+ msi-parent = <&gicp>;
+ };
+
+ cps_rtc: rtc@284000 {
+ compatible = "marvell,armada-8k-rtc";
+ reg = <0x284000 0x20>, <0x284080 0x24>;
+ reg-names = "rtc", "rtc-soc";
+ interrupts = <ICU_GRP_NSR 77 IRQ_TYPE_LEVEL_HIGH>;
};
cps_syscon0: system-controller@440000 {
- compatible = "marvell,cp110-system-controller0",
- "syscon";
+ compatible = "syscon", "simple-mfd";
reg = <0x440000 0x1000>;
- #clock-cells = <2>;
- core-clock-output-names =
- "cps-apll", "cps-ppv2-core", "cps-eip",
- "cps-core", "cps-nand-core";
- gate-clock-output-names =
- "cps-audio", "cps-communit", "cps-nand",
- "cps-ppv2", "cps-sdio", "cps-mg-domain",
- "cps-mg-core", "cps-xor1", "cps-xor0",
- "cps-gop-dp", "none", "cps-pcie_x10",
- "cps-pcie_x11", "cps-pcie_x4", "cps-pcie-xor",
- "cps-sata", "cps-sata-usb", "cps-main",
- "cps-sd-mmc-gop", "none", "none",
- "cps-slow-io", "cps-usb3h0", "cps-usb3h1",
- "cps-usb3dev", "cps-eip150", "cps-eip197";
- };
- cps_sata0: sata@540000 {
- compatible = "marvell,armada-8k-ahci",
- "generic-ahci";
- reg = <0x540000 0x30000>;
- interrupts = <GIC_SPI 287 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cps_syscon0 1 15>;
- status = "disabled";
+ cps_clk: clock {
+ compatible = "marvell,cp110-clock";
+ #clock-cells = <2>;
+ };
+
+ cps_gpio1: gpio@100 {
+ compatible = "marvell,armada-8k-gpio";
+ offset = <0x100>;
+ ngpios = <32>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&cps_pinctrl 0 0 32>;
+ interrupt-controller;
+ interrupts = <ICU_GRP_NSR 86 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 85 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 84 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 83 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ cps_gpio2: gpio@140 {
+ compatible = "marvell,armada-8k-gpio";
+ offset = <0x140>;
+ ngpios = <31>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&cps_pinctrl 0 32 31>;
+ interrupt-controller;
+ interrupts = <ICU_GRP_NSR 82 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 81 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 80 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 79 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
};
cps_usb3_0: usb3@500000 {
@@ -137,8 +187,8 @@
"generic-xhci";
reg = <0x500000 0x4000>;
dma-coherent;
- interrupts = <GIC_SPI 286 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cps_syscon0 1 22>;
+ interrupts = <ICU_GRP_NSR 106 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cps_clk 1 22>;
status = "disabled";
};
@@ -147,8 +197,17 @@
"generic-xhci";
reg = <0x510000 0x4000>;
dma-coherent;
- interrupts = <GIC_SPI 285 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cps_syscon0 1 23>;
+ interrupts = <ICU_GRP_NSR 105 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cps_clk 1 23>;
+ status = "disabled";
+ };
+
+ cps_sata0: sata@540000 {
+ compatible = "marvell,armada-8k-ahci",
+ "generic-ahci";
+ reg = <0x540000 0x30000>;
+ interrupts = <ICU_GRP_NSR 107 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cps_clk 1 15>;
status = "disabled";
};
@@ -158,7 +217,7 @@
<0x6b0000 0x1000>;
dma-coherent;
msi-parent = <&gic_v2m0>;
- clocks = <&cps_syscon0 1 8>;
+ clocks = <&cps_clk 1 8>;
};
cps_xor1: xor@6c0000 {
@@ -167,7 +226,7 @@
<0x6d0000 0x1000>;
dma-coherent;
msi-parent = <&gic_v2m0>;
- clocks = <&cps_syscon0 1 7>;
+ clocks = <&cps_clk 1 7>;
};
cps_spi0: spi@700600 {
@@ -176,7 +235,7 @@
#address-cells = <0x1>;
#size-cells = <0x0>;
cell-index = <3>;
- clocks = <&cps_syscon0 1 21>;
+ clocks = <&cps_clk 1 21>;
status = "disabled";
};
@@ -186,7 +245,7 @@
#address-cells = <1>;
#size-cells = <0>;
cell-index = <4>;
- clocks = <&cps_syscon0 1 21>;
+ clocks = <&cps_clk 1 21>;
status = "disabled";
};
@@ -195,8 +254,8 @@
reg = <0x701000 0x20>;
#address-cells = <1>;
#size-cells = <0>;
- interrupts = <GIC_SPI 310 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cps_syscon0 1 21>;
+ interrupts = <ICU_GRP_NSR 120 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cps_clk 1 21>;
status = "disabled";
};
@@ -205,31 +264,54 @@
reg = <0x701100 0x20>;
#address-cells = <1>;
#size-cells = <0>;
- interrupts = <GIC_SPI 311 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cps_syscon0 1 21>;
+ interrupts = <ICU_GRP_NSR 121 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cps_clk 1 21>;
+ status = "disabled";
+ };
+
+ cps_nand: nand@720000 {
+ /*
+ * Due to the limiation of the pin available
+ * this controller is only usable on the CPM
+ * for A7K and on the CPS for A8K.
+ */
+ compatible = "marvell,armada370-nand";
+ reg = <0x720000 0x54>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ interrupts = <ICU_GRP_NSR 115 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cps_clk 1 2>;
status = "disabled";
};
cps_trng: trng@760000 {
compatible = "marvell,armada-8k-rng", "inside-secure,safexcel-eip76";
reg = <0x760000 0x7d>;
- interrupts = <GIC_SPI 312 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cps_syscon0 1 25>;
+ interrupts = <ICU_GRP_NSR 95 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cps_clk 1 25>;
status = "okay";
};
cps_crypto: crypto@800000 {
compatible = "inside-secure,safexcel-eip197";
reg = <0x800000 0x200000>;
- interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 278 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 279 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 280 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 281 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 282 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 87 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 88 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 89 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 90 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 91 IRQ_TYPE_LEVEL_HIGH>,
+ <ICU_GRP_NSR 92 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "mem", "ring0", "ring1",
"ring2", "ring3", "eip";
- clocks = <&cps_syscon0 1 26>;
+ clocks = <&cps_clk 1 26>;
+ dma-coherent;
+ /*
+ * The cryptographic engine found on the cp110
+ * master is enabled by default at the SoC
+ * level. Because it is not possible as of now
+ * to enable two cryptographic engines in
+ * parallel, disable this one by default.
+ */
status = "disabled";
};
};
@@ -253,10 +335,10 @@
/* non-prefetchable memory */
0x82000000 0 0xfa000000 0 0xfa000000 0 0xf00000>;
interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &gic 0 GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH>;
- interrupts = <GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-map = <0 0 0 0 &cps_icu ICU_GRP_NSR 22 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 22 IRQ_TYPE_LEVEL_HIGH>;
num-lanes = <1>;
- clocks = <&cps_syscon0 1 13>;
+ clocks = <&cps_clk 1 13>;
status = "disabled";
};
@@ -279,11 +361,11 @@
/* non-prefetchable memory */
0x82000000 0 0xfb000000 0 0xfb000000 0 0xf00000>;
interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &gic 0 GIC_SPI 258 IRQ_TYPE_LEVEL_HIGH>;
- interrupts = <GIC_SPI 258 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-map = <0 0 0 0 &cps_icu ICU_GRP_NSR 24 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 24 IRQ_TYPE_LEVEL_HIGH>;
num-lanes = <1>;
- clocks = <&cps_syscon0 1 11>;
+ clocks = <&cps_clk 1 11>;
status = "disabled";
};
@@ -306,11 +388,11 @@
/* non-prefetchable memory */
0x82000000 0 0xfc000000 0 0xfc000000 0 0xf00000>;
interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &gic 0 GIC_SPI 257 IRQ_TYPE_LEVEL_HIGH>;
- interrupts = <GIC_SPI 257 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-map = <0 0 0 0 &cps_icu ICU_GRP_NSR 23 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <ICU_GRP_NSR 23 IRQ_TYPE_LEVEL_HIGH>;
num-lanes = <1>;
- clocks = <&cps_syscon0 1 12>;
+ clocks = <&cps_clk 1 12>;
status = "disabled";
};
};
diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index 9fbfd3238469..151723b5c733 100644
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/arch/arm64/boot/dts/mediatek/Makefile
@@ -1,5 +1,8 @@
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt2712-evb.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt6755-evb.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt6795-evb.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt6797-evb.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt7622-rfb1.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt8173-evb.dtb
always := $(dtb-y)
diff --git a/arch/arm64/boot/dts/mediatek/mt2712-evb.dts b/arch/arm64/boot/dts/mediatek/mt2712-evb.dts
new file mode 100644
index 000000000000..8c804df3da4e
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt2712-evb.dts
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: YT Shen <yt.shen@mediatek.com>
+ *
+ * SPDX-License-Identifier: (GPL-2.0 OR MIT)
+ */
+
+/dts-v1/;
+#include "mt2712e.dtsi"
+
+/ {
+ model = "MediaTek MT2712 evaluation board";
+ compatible = "mediatek,mt2712-evb", "mediatek,mt2712";
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ memory@40000000 {
+ device_type = "memory";
+ reg = <0 0x40000000 0 0x80000000>;
+ };
+
+ chosen {
+ stdout-path = "serial0:921600n8";
+ };
+};
+
+&uart0 {
+ status = "okay";
+};
+
diff --git a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
new file mode 100644
index 000000000000..57d0396b7faa
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
@@ -0,0 +1,171 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: YT Shen <yt.shen@mediatek.com>
+ *
+ * SPDX-License-Identifier: (GPL-2.0 OR MIT)
+ */
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ compatible = "mediatek,mt2712";
+ interrupt-parent = <&sysirq>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu-map {
+ cluster0 {
+ core0 {
+ cpu = <&cpu0>;
+ };
+ core1 {
+ cpu = <&cpu1>;
+ };
+ };
+
+ cluster1 {
+ core0 {
+ cpu = <&cpu2>;
+ };
+ };
+ };
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a35";
+ reg = <0x000>;
+ };
+
+ cpu1: cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a35";
+ reg = <0x001>;
+ enable-method = "psci";
+ };
+
+ cpu2: cpu@200 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72";
+ reg = <0x200>;
+ enable-method = "psci";
+ };
+ };
+
+ psci {
+ compatible = "arm,psci-0.2";
+ method = "smc";
+ };
+
+ baud_clk: dummy26m {
+ compatible = "fixed-clock";
+ clock-frequency = <26000000>;
+ #clock-cells = <0>;
+ };
+
+ sys_clk: dummyclk {
+ compatible = "fixed-clock";
+ clock-frequency = <26000000>;
+ #clock-cells = <0>;
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_PPI 13
+ (GIC_CPU_MASK_RAW(0x13) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 14
+ (GIC_CPU_MASK_RAW(0x13) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 11
+ (GIC_CPU_MASK_RAW(0x13) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 10
+ (GIC_CPU_MASK_RAW(0x13) | IRQ_TYPE_LEVEL_LOW)>;
+ };
+
+ uart5: serial@1000f000 {
+ compatible = "mediatek,mt2712-uart",
+ "mediatek,mt6577-uart";
+ reg = <0 0x1000f000 0 0x400>;
+ interrupts = <GIC_SPI 127 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&baud_clk>, <&sys_clk>;
+ clock-names = "baud", "bus";
+ status = "disabled";
+ };
+
+ sysirq: interrupt-controller@10220a80 {
+ compatible = "mediatek,mt2712-sysirq",
+ "mediatek,mt6577-sysirq";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ interrupt-parent = <&gic>;
+ reg = <0 0x10220a80 0 0x40>;
+ };
+
+ gic: interrupt-controller@10510000 {
+ compatible = "arm,gic-400";
+ #interrupt-cells = <3>;
+ interrupt-parent = <&gic>;
+ interrupt-controller;
+ reg = <0 0x10510000 0 0x10000>,
+ <0 0x10520000 0 0x20000>,
+ <0 0x10540000 0 0x20000>,
+ <0 0x10560000 0 0x20000>;
+ interrupts = <GIC_PPI 9
+ (GIC_CPU_MASK_RAW(0x13) | IRQ_TYPE_LEVEL_HIGH)>;
+ };
+
+ uart0: serial@11002000 {
+ compatible = "mediatek,mt2712-uart",
+ "mediatek,mt6577-uart";
+ reg = <0 0x11002000 0 0x400>;
+ interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&baud_clk>, <&sys_clk>;
+ clock-names = "baud", "bus";
+ status = "disabled";
+ };
+
+ uart1: serial@11003000 {
+ compatible = "mediatek,mt2712-uart",
+ "mediatek,mt6577-uart";
+ reg = <0 0x11003000 0 0x400>;
+ interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&baud_clk>, <&sys_clk>;
+ clock-names = "baud", "bus";
+ status = "disabled";
+ };
+
+ uart2: serial@11004000 {
+ compatible = "mediatek,mt2712-uart",
+ "mediatek,mt6577-uart";
+ reg = <0 0x11004000 0 0x400>;
+ interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&baud_clk>, <&sys_clk>;
+ clock-names = "baud", "bus";
+ status = "disabled";
+ };
+
+ uart3: serial@11005000 {
+ compatible = "mediatek,mt2712-uart",
+ "mediatek,mt6577-uart";
+ reg = <0 0x11005000 0 0x400>;
+ interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&baud_clk>, <&sys_clk>;
+ clock-names = "baud", "bus";
+ status = "disabled";
+ };
+
+ uart4: serial@11019000 {
+ compatible = "mediatek,mt2712-uart",
+ "mediatek,mt6577-uart";
+ reg = <0 0x11019000 0 0x400>;
+ interrupts = <GIC_SPI 126 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&baud_clk>, <&sys_clk>;
+ clock-names = "baud", "bus";
+ status = "disabled";
+ };
+};
+
diff --git a/arch/arm64/boot/dts/mediatek/mt6797-evb.dts b/arch/arm64/boot/dts/mediatek/mt6797-evb.dts
new file mode 100644
index 000000000000..c79109c65409
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt6797-evb.dts
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: Mars.C <mars.cheng@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+/dts-v1/;
+#include "mt6797.dtsi"
+
+/ {
+ model = "MediaTek MT6797 Evaluation Board";
+ compatible = "mediatek,mt6797-evb", "mediatek,mt6797";
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ memory@40000000 {
+ device_type = "memory";
+ reg = <0 0x40000000 0 0x1e800000>;
+ };
+
+ chosen {};
+};
+
+&uart0 {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt6797.dtsi b/arch/arm64/boot/dts/mediatek/mt6797.dtsi
new file mode 100644
index 000000000000..4beaa71107d7
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt6797.dtsi
@@ -0,0 +1,242 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: Mars.C <mars.cheng@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <dt-bindings/clock/mt6797-clk.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ compatible = "mediatek,mt6797";
+ interrupt-parent = <&sysirq>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ psci {
+ compatible = "arm,psci-0.2";
+ method = "smc";
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ enable-method = "psci";
+ reg = <0x000>;
+ };
+
+ cpu1: cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ enable-method = "psci";
+ reg = <0x001>;
+ };
+
+ cpu2: cpu@2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ enable-method = "psci";
+ reg = <0x002>;
+ };
+
+ cpu3: cpu@3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ enable-method = "psci";
+ reg = <0x003>;
+ };
+
+ cpu4: cpu@100 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ enable-method = "psci";
+ reg = <0x100>;
+ };
+
+ cpu5: cpu@101 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ enable-method = "psci";
+ reg = <0x101>;
+ };
+
+ cpu6: cpu@102 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ enable-method = "psci";
+ reg = <0x102>;
+ };
+
+ cpu7: cpu@103 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ enable-method = "psci";
+ reg = <0x103>;
+ };
+
+ cpu8: cpu@200 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72";
+ enable-method = "psci";
+ reg = <0x200>;
+ };
+
+ cpu9: cpu@201 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a72";
+ enable-method = "psci";
+ reg = <0x201>;
+ };
+ };
+
+ clk26m: oscillator@0 {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <26000000>;
+ clock-output-names = "clk26m";
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
+ };
+
+ topckgen: topckgen@10000000 {
+ compatible = "mediatek,mt6797-topckgen";
+ reg = <0 0x10000000 0 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ infrasys: infracfg_ao@10001000 {
+ compatible = "mediatek,mt6797-infracfg", "syscon";
+ reg = <0 0x10001000 0 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ scpsys: scpsys@10006000 {
+ compatible = "mediatek,mt6797-scpsys";
+ #power-domain-cells = <1>;
+ reg = <0 0x10006000 0 0x1000>;
+ clocks = <&topckgen CLK_TOP_MUX_MFG>,
+ <&topckgen CLK_TOP_MUX_MM>,
+ <&topckgen CLK_TOP_MUX_VDEC>;
+ clock-names = "mfg", "mm", "vdec";
+ infracfg = <&infrasys>;
+ };
+
+ watchdog: watchdog@10007000 {
+ compatible = "mediatek,mt6797-wdt", "mediatek,mt6589-wdt";
+ reg = <0 0x10007000 0 0x100>;
+ };
+
+ apmixedsys: apmixed@1000c000 {
+ compatible = "mediatek,mt6797-apmixedsys";
+ reg = <0 0x1000c000 0 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ sysirq: intpol-controller@10200620 {
+ compatible = "mediatek,mt6797-sysirq",
+ "mediatek,mt6577-sysirq";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ interrupt-parent = <&gic>;
+ reg = <0 0x10220620 0 0x20>,
+ <0 0x10220690 0 0x10>;
+ };
+
+ uart0: serial@11002000 {
+ compatible = "mediatek,mt6797-uart",
+ "mediatek,mt6577-uart";
+ reg = <0 0x11002000 0 0x400>;
+ interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&infrasys CLK_INFRA_UART0>,
+ <&infrasys CLK_INFRA_AP_DMA>;
+ clock-names = "baud", "bus";
+ status = "disabled";
+ };
+
+ uart1: serial@11003000 {
+ compatible = "mediatek,mt6797-uart",
+ "mediatek,mt6577-uart";
+ reg = <0 0x11003000 0 0x400>;
+ interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&infrasys CLK_INFRA_UART1>,
+ <&infrasys CLK_INFRA_AP_DMA>;
+ clock-names = "baud", "bus";
+ status = "disabled";
+ };
+
+ uart2: serial@11004000 {
+ compatible = "mediatek,mt6797-uart",
+ "mediatek,mt6577-uart";
+ reg = <0 0x11004000 0 0x400>;
+ interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&infrasys CLK_INFRA_UART2>,
+ <&infrasys CLK_INFRA_AP_DMA>;
+ clock-names = "baud", "bus";
+ status = "disabled";
+ };
+
+ uart3: serial@11005000 {
+ compatible = "mediatek,mt6797-uart",
+ "mediatek,mt6577-uart";
+ reg = <0 0x11005000 0 0x400>;
+ interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&infrasys CLK_INFRA_UART3>,
+ <&infrasys CLK_INFRA_AP_DMA>;
+ clock-names = "baud", "bus";
+ status = "disabled";
+ };
+
+ mmsys: mmsys_config@14000000 {
+ compatible = "mediatek,mt6797-mmsys", "syscon";
+ reg = <0 0x14000000 0 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ imgsys: imgsys_config@15000000 {
+ compatible = "mediatek,mt6797-imgsys", "syscon";
+ reg = <0 0x15000000 0 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ vdecsys: vdec_gcon@16000000 {
+ compatible = "mediatek,mt6797-vdecsys", "syscon";
+ reg = <0 0x16000000 0 0x10000>;
+ #clock-cells = <1>;
+ };
+
+ vencsys: venc_gcon@17000000 {
+ compatible = "mediatek,mt6797-vencsys", "syscon";
+ reg = <0 0x17000000 0 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ gic: interrupt-controller@19000000 {
+ compatible = "arm,gic-v3";
+ #interrupt-cells = <3>;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ reg = <0 0x19000000 0 0x10000>, /* GICD */
+ <0 0x19200000 0 0x200000>, /* GICR */
+ <0 0x10240000 0 0x2000>; /* GICC */
+ };
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts b/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts
new file mode 100644
index 000000000000..c08309df2cc7
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: Ming Huang <ming.huang@mediatek.com>
+ * Sean Wang <sean.wang@mediatek.com>
+ *
+ * SPDX-License-Identifier: (GPL-2.0 OR MIT)
+ */
+
+/dts-v1/;
+#include "mt7622.dtsi"
+
+/ {
+ model = "MediaTek MT7622 RFB1 board";
+ compatible = "mediatek,mt7622-rfb1", "mediatek,mt7622";
+
+ chosen {
+ bootargs = "console=ttyS0,115200n1";
+ };
+
+ memory {
+ reg = <0 0x40000000 0 0x3F000000>;
+ };
+};
+
+&uart0 {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt7622.dtsi b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
new file mode 100644
index 000000000000..b111fec2ed9d
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: Ming Huang <ming.huang@mediatek.com>
+ * Sean Wang <sean.wang@mediatek.com>
+ *
+ * SPDX-License-Identifier: (GPL-2.0 OR MIT)
+ */
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ compatible = "mediatek,mt7622";
+ interrupt-parent = <&sysirq>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ cpus {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0 0x0>;
+ enable-method = "psci";
+ clock-frequency = <1300000000>;
+ };
+
+ cpu1: cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0 0x1>;
+ enable-method = "psci";
+ clock-frequency = <1300000000>;
+ };
+ };
+
+ uart_clk: dummy25m {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <25000000>;
+ };
+
+ bus_clk: dummy280m {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <280000000>;
+ };
+
+ psci {
+ compatible = "arm,psci-0.2";
+ method = "smc";
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ /* 192 KiB reserved for ARM Trusted Firmware (BL31) */
+ secmon_reserved: secmon@43000000 {
+ reg = <0 0x43000000 0 0x30000>;
+ no-map;
+ };
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) |
+ IRQ_TYPE_LEVEL_HIGH)>,
+ <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) |
+ IRQ_TYPE_LEVEL_HIGH)>,
+ <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) |
+ IRQ_TYPE_LEVEL_HIGH)>,
+ <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) |
+ IRQ_TYPE_LEVEL_HIGH)>;
+ };
+
+ sysirq: interrupt-controller@10200620 {
+ compatible = "mediatek,mt7622-sysirq",
+ "mediatek,mt6577-sysirq";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ interrupt-parent = <&gic>;
+ reg = <0 0x10200620 0 0x20>;
+ };
+
+ gic: interrupt-controller@10300000 {
+ compatible = "arm,gic-400";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ interrupt-parent = <&gic>;
+ reg = <0 0x10310000 0 0x1000>,
+ <0 0x10320000 0 0x1000>,
+ <0 0x10340000 0 0x2000>,
+ <0 0x10360000 0 0x2000>;
+ };
+
+ uart0: serial@11002000 {
+ compatible = "mediatek,mt7622-uart",
+ "mediatek,mt6577-uart";
+ reg = <0 0x11002000 0 0x400>;
+ interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&uart_clk>, <&bus_clk>;
+ clock-names = "baud", "bus";
+ status = "disabled";
+ };
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
index 6922252f317b..b99a27372965 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
@@ -731,8 +731,9 @@
<0 0x11280700 0 0x0100>;
reg-names = "mac", "ippc";
interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_LOW>;
- phys = <&phy_port0 PHY_TYPE_USB3>,
- <&phy_port1 PHY_TYPE_USB2>;
+ phys = <&u2port0 PHY_TYPE_USB2>,
+ <&u3port0 PHY_TYPE_USB3>,
+ <&u2port1 PHY_TYPE_USB2>;
power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>;
clocks = <&topckgen CLK_TOP_USB30_SEL>,
<&clk26m>,
@@ -763,21 +764,31 @@
u3phy: usb-phy@11290000 {
compatible = "mediatek,mt8173-u3phy";
reg = <0 0x11290000 0 0x800>;
- clocks = <&apmixedsys CLK_APMIXED_REF2USB_TX>;
- clock-names = "u3phya_ref";
#address-cells = <2>;
#size-cells = <2>;
ranges;
status = "okay";
- phy_port0: port@11290800 {
- reg = <0 0x11290800 0 0x800>;
+ u2port0: usb-phy@11290800 {
+ reg = <0 0x11290800 0 0x100>;
+ clocks = <&apmixedsys CLK_APMIXED_REF2USB_TX>;
+ clock-names = "ref";
#phy-cells = <1>;
status = "okay";
};
- phy_port1: port@11291000 {
- reg = <0 0x11291000 0 0x800>;
+ u3port0: usb-phy@11290900 {
+ reg = <0 0x11290900 0 0x700>;
+ clocks = <&clk26m>;
+ clock-names = "ref";
+ #phy-cells = <1>;
+ status = "okay";
+ };
+
+ u2port1: usb-phy@11291000 {
+ reg = <0 0x11291000 0 0x100>;
+ clocks = <&apmixedsys CLK_APMIXED_REF2USB_TX>;
+ clock-names = "ref";
#phy-cells = <1>;
status = "okay";
};
@@ -792,80 +803,74 @@
#clock-cells = <1>;
};
- mdp {
- compatible = "mediatek,mt8173-mdp";
- #address-cells = <2>;
- #size-cells = <2>;
- ranges;
+ mdp_rdma0: rdma@14001000 {
+ compatible = "mediatek,mt8173-mdp-rdma",
+ "mediatek,mt8173-mdp";
+ reg = <0 0x14001000 0 0x1000>;
+ clocks = <&mmsys CLK_MM_MDP_RDMA0>,
+ <&mmsys CLK_MM_MUTEX_32K>;
+ power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
+ iommus = <&iommu M4U_PORT_MDP_RDMA0>;
+ mediatek,larb = <&larb0>;
mediatek,vpu = <&vpu>;
+ };
- mdp_rdma0: rdma@14001000 {
- compatible = "mediatek,mt8173-mdp-rdma";
- reg = <0 0x14001000 0 0x1000>;
- clocks = <&mmsys CLK_MM_MDP_RDMA0>,
- <&mmsys CLK_MM_MUTEX_32K>;
- power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
- iommus = <&iommu M4U_PORT_MDP_RDMA0>;
- mediatek,larb = <&larb0>;
- };
-
- mdp_rdma1: rdma@14002000 {
- compatible = "mediatek,mt8173-mdp-rdma";
- reg = <0 0x14002000 0 0x1000>;
- clocks = <&mmsys CLK_MM_MDP_RDMA1>,
- <&mmsys CLK_MM_MUTEX_32K>;
- power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
- iommus = <&iommu M4U_PORT_MDP_RDMA1>;
- mediatek,larb = <&larb4>;
- };
+ mdp_rdma1: rdma@14002000 {
+ compatible = "mediatek,mt8173-mdp-rdma";
+ reg = <0 0x14002000 0 0x1000>;
+ clocks = <&mmsys CLK_MM_MDP_RDMA1>,
+ <&mmsys CLK_MM_MUTEX_32K>;
+ power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
+ iommus = <&iommu M4U_PORT_MDP_RDMA1>;
+ mediatek,larb = <&larb4>;
+ };
- mdp_rsz0: rsz@14003000 {
- compatible = "mediatek,mt8173-mdp-rsz";
- reg = <0 0x14003000 0 0x1000>;
- clocks = <&mmsys CLK_MM_MDP_RSZ0>;
- power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
- };
+ mdp_rsz0: rsz@14003000 {
+ compatible = "mediatek,mt8173-mdp-rsz";
+ reg = <0 0x14003000 0 0x1000>;
+ clocks = <&mmsys CLK_MM_MDP_RSZ0>;
+ power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
+ };
- mdp_rsz1: rsz@14004000 {
- compatible = "mediatek,mt8173-mdp-rsz";
- reg = <0 0x14004000 0 0x1000>;
- clocks = <&mmsys CLK_MM_MDP_RSZ1>;
- power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
- };
+ mdp_rsz1: rsz@14004000 {
+ compatible = "mediatek,mt8173-mdp-rsz";
+ reg = <0 0x14004000 0 0x1000>;
+ clocks = <&mmsys CLK_MM_MDP_RSZ1>;
+ power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
+ };
- mdp_rsz2: rsz@14005000 {
- compatible = "mediatek,mt8173-mdp-rsz";
- reg = <0 0x14005000 0 0x1000>;
- clocks = <&mmsys CLK_MM_MDP_RSZ2>;
- power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
- };
+ mdp_rsz2: rsz@14005000 {
+ compatible = "mediatek,mt8173-mdp-rsz";
+ reg = <0 0x14005000 0 0x1000>;
+ clocks = <&mmsys CLK_MM_MDP_RSZ2>;
+ power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
+ };
- mdp_wdma0: wdma@14006000 {
- compatible = "mediatek,mt8173-mdp-wdma";
- reg = <0 0x14006000 0 0x1000>;
- clocks = <&mmsys CLK_MM_MDP_WDMA>;
- power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
- iommus = <&iommu M4U_PORT_MDP_WDMA>;
- mediatek,larb = <&larb0>;
- };
+ mdp_wdma0: wdma@14006000 {
+ compatible = "mediatek,mt8173-mdp-wdma";
+ reg = <0 0x14006000 0 0x1000>;
+ clocks = <&mmsys CLK_MM_MDP_WDMA>;
+ power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
+ iommus = <&iommu M4U_PORT_MDP_WDMA>;
+ mediatek,larb = <&larb0>;
+ };
- mdp_wrot0: wrot@14007000 {
- compatible = "mediatek,mt8173-mdp-wrot";
- reg = <0 0x14007000 0 0x1000>;
- clocks = <&mmsys CLK_MM_MDP_WROT0>;
- power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
- iommus = <&iommu M4U_PORT_MDP_WROT0>;
- mediatek,larb = <&larb0>;
- };
+ mdp_wrot0: wrot@14007000 {
+ compatible = "mediatek,mt8173-mdp-wrot";
+ reg = <0 0x14007000 0 0x1000>;
+ clocks = <&mmsys CLK_MM_MDP_WROT0>;
+ power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
+ iommus = <&iommu M4U_PORT_MDP_WROT0>;
+ mediatek,larb = <&larb0>;
+ };
- mdp_wrot1: wrot@14008000 {
- compatible = "mediatek,mt8173-mdp-wrot";
- reg = <0 0x14008000 0 0x1000>;
- clocks = <&mmsys CLK_MM_MDP_WROT1>;
- power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
- iommus = <&iommu M4U_PORT_MDP_WROT1>;
- mediatek,larb = <&larb4>;
- };
+ mdp_wrot1: wrot@14008000 {
+ compatible = "mediatek,mt8173-mdp-wrot";
+ reg = <0 0x14008000 0 0x1000>;
+ clocks = <&mmsys CLK_MM_MDP_WROT1>;
+ power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
+ iommus = <&iommu M4U_PORT_MDP_WROT1>;
+ mediatek,larb = <&larb4>;
};
ovl0: ovl@1400c000 {
diff --git a/arch/arm64/boot/dts/nvidia/tegra132.dtsi b/arch/arm64/boot/dts/nvidia/tegra132.dtsi
index 2b17936ac5be..c2f0f2743578 100644
--- a/arch/arm64/boot/dts/nvidia/tegra132.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra132.dtsi
@@ -12,7 +12,7 @@
#address-cells = <2>;
#size-cells = <2>;
- pcie-controller@01003000 {
+ pcie@1003000 {
compatible = "nvidia,tegra124-pcie";
device_type = "pci";
reg = <0x0 0x01003000 0x0 0x00000800 /* PADS registers */
@@ -55,6 +55,7 @@
device_type = "pci";
assigned-addresses = <0x82000800 0 0x01000000 0 0x1000>;
reg = <0x000800 0 0 0 0>;
+ bus-range = <0x00 0xff>;
status = "disabled";
#address-cells = <3>;
@@ -68,6 +69,7 @@
device_type = "pci";
assigned-addresses = <0x82001000 0 0x01001000 0 0x1000>;
reg = <0x001000 0 0 0 0>;
+ bus-range = <0x00 0xff>;
status = "disabled";
#address-cells = <3>;
diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
index 5e62e68ac053..0b0552c9f7dd 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
@@ -348,6 +348,13 @@
reg-names = "pmc", "wake", "aotag", "scratch";
};
+ ccplex@e000000 {
+ compatible = "nvidia,tegra186-ccplex-cluster";
+ reg = <0x0 0x0e000000 0x0 0x3fffff>;
+
+ nvidia,bpmp = <&bpmp>;
+ };
+
gpu@17000000 {
compatible = "nvidia,gp10b";
reg = <0x0 0x17000000 0x0 0x1000000>,
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts b/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts
index 4c1ea7a08d43..7cb95e042117 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts
@@ -7,7 +7,7 @@
model = "NVIDIA Jetson TX1 Developer Kit";
compatible = "nvidia,p2371-2180", "nvidia,tegra210";
- pcie-controller@01003000 {
+ pcie@1003000 {
status = "okay";
avdd-pll-uerefe-supply = <&avdd_1v05_pll>;
diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
index 8f26c4d4409a..29f471e0f22a 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
@@ -11,7 +11,7 @@
#address-cells = <2>;
#size-cells = <2>;
- pcie-controller@01003000 {
+ pcie@1003000 {
compatible = "nvidia,tegra210-pcie";
device_type = "pci";
reg = <0x0 0x01003000 0x0 0x00000800 /* PADS registers */
@@ -51,6 +51,7 @@
device_type = "pci";
assigned-addresses = <0x82000800 0 0x01000000 0 0x1000>;
reg = <0x000800 0 0 0 0>;
+ bus-range = <0x00 0xff>;
status = "disabled";
#address-cells = <3>;
@@ -64,6 +65,7 @@
device_type = "pci";
assigned-addresses = <0x82001000 0 0x01001000 0 0x1000>;
reg = <0x001000 0 0 0 0>;
+ bus-range = <0x00 0xff>;
status = "disabled";
#address-cells = <3>;
diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index cc0f02d9dd02..ff81d7e5805e 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -1,5 +1,6 @@
dtb-$(CONFIG_ARCH_QCOM) += apq8016-sbc.dtb
dtb-$(CONFIG_ARCH_QCOM) += apq8096-db820c.dtb
+dtb-$(CONFIG_ARCH_QCOM) += ipq8074-hk01.dtb
dtb-$(CONFIG_ARCH_QCOM) += msm8916-mtp.dtb
dtb-$(CONFIG_ARCH_QCOM) += msm8992-bullhead-rev-101.dtb
dtb-$(CONFIG_ARCH_QCOM) += msm8994-angler-rev-101.dtb
diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi b/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi
index d94640812194..790b7775b901 100644
--- a/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi
@@ -17,6 +17,7 @@
function = PMIC_GPIO_FUNC_NORMAL;
power-source = <PM8916_GPIO_VPH>;
input-disable;
+ output-high;
};
};
diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
index a17f5b9a5de6..1d63e6b879de 100644
--- a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
@@ -88,6 +88,8 @@
interrupts = <31 2>;
adi,dsi-lanes = <4>;
+ clocks = <&rpmcc RPM_SMD_BB_CLK2>;
+ clock-names = "cec";
pd-gpios = <&msmgpio 32 0>;
@@ -178,7 +180,7 @@
led@5 {
label = "apq8016-sbc:yellow:wlan";
gpios = <&pm8916_mpps 2 GPIO_ACTIVE_HIGH>;
- linux,default-trigger = "wlan";
+ linux,default-trigger = "phy0tx";
default-state = "off";
};
@@ -213,24 +215,21 @@
};
usb@78d9000 {
- extcon = <&usb_id>, <&usb_id>;
+ extcon = <&usb_id>;
status = "okay";
- };
-
- ehci@78d9000 {
- status = "okay";
- };
-
- phy@78d9000 {
- v1p8-supply = <&pm8916_l7>;
- v3p3-supply = <&pm8916_l13>;
- vddcx-supply = <&pm8916_s1>;
- extcon = <&usb_id>, <&usb_id>;
- dr_mode = "otg";
- status = "okay";
- switch-gpio = <&pm8916_gpios 4 GPIO_ACTIVE_HIGH>;
+ adp-disable;
+ hnp-disable;
+ srp-disable;
+ dr_mode = "host";
pinctrl-names = "default";
pinctrl-0 = <&usb_sw_sel_pm>;
+ ulpi {
+ phy {
+ v1p8-supply = <&pm8916_l7>;
+ v3p3-supply = <&pm8916_l13>;
+ extcon = <&usb_id>;
+ };
+ };
};
lpass@07708000 {
@@ -343,7 +342,7 @@
usb_id: usb-id {
compatible = "linux,extcon-usb-gpio";
- id-gpio = <&msmgpio 121 GPIO_ACTIVE_HIGH>;
+ vbus-gpio = <&msmgpio 121 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&usb_id_default>;
};
diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
index b1142c45fdc9..8e379782597a 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
@@ -24,4 +24,28 @@
power-source = <PM8994_GPIO_S4>; // 1.8V
};
};
+
+ usb3_vbus_det_gpio: pm8996_gpio22 {
+ pinconf {
+ pins = "gpio22";
+ function = PMIC_GPIO_FUNC_NORMAL;
+ input-enable;
+ bias-pull-down;
+ qcom,drive-strength = <PMIC_GPIO_STRENGTH_NO>;
+ power-source = <PM8994_GPIO_S4>; // 1.8V
+ };
+ };
+};
+
+&pmi8994_gpios {
+ usb2_vbus_det_gpio: pmi8996_gpio6 {
+ pinconf {
+ pins = "gpio6";
+ function = PMIC_GPIO_FUNC_NORMAL;
+ input-enable;
+ bias-pull-down;
+ qcom,drive-strength = <PMIC_GPIO_STRENGTH_NO>;
+ power-source = <PM8994_GPIO_S4>; // 1.8V
+ };
+ };
};
diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
index d2196fc6d739..789f3e87321e 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
@@ -13,6 +13,7 @@
#include "msm8996.dtsi"
#include "pm8994.dtsi"
+#include "pmi8994.dtsi"
#include "apq8096-db820c-pins.dtsi"
#include "apq8096-db820c-pmic-pins.dtsi"
#include <dt-bindings/input/input.h>
@@ -88,6 +89,55 @@
cd-gpios = <&msmgpio 38 0x1>;
status = "okay";
};
+
+ phy@34000 {
+ status = "okay";
+ };
+
+ phy@7410000 {
+ status = "okay";
+ };
+
+ phy@7411000 {
+ status = "okay";
+ };
+
+ phy@7412000 {
+ status = "okay";
+ };
+
+ usb@6a00000 {
+ status = "okay";
+
+ dwc3@6a00000 {
+ extcon = <&usb3_id>;
+ dr_mode = "otg";
+ };
+ };
+
+ usb3_id: usb3-id {
+ compatible = "linux,extcon-usb-gpio";
+ id-gpio = <&pm8994_gpios 22 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&usb3_vbus_det_gpio>;
+ };
+
+ usb@7600000 {
+ status = "okay";
+
+ dwc3@7600000 {
+ extcon = <&usb2_id>;
+ dr_mode = "otg";
+ maximum-speed = "high-speed";
+ };
+ };
+
+ usb2_id: usb2-id {
+ compatible = "linux,extcon-usb-gpio";
+ id-gpio = <&pmi8994_gpios 6 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&usb2_vbus_det_gpio>;
+ };
};
@@ -106,4 +156,152 @@
gpios = <&pm8994_gpios 2 GPIO_ACTIVE_LOW>;
};
};
+
+ rpm-glink {
+ rpm_requests {
+ pm8994-regulators {
+ vdd_l1-supply = <&pm8994_s3>;
+ vdd_l2_l26_l28-supply = <&pm8994_s3>;
+ vdd_l3_l11-supply = <&pm8994_s3>;
+ vdd_l4_l27_l31-supply = <&pm8994_s3>;
+ vdd_l5_l7-supply = <&pm8994_s5>;
+ vdd_l14_l15-supply = <&pm8994_s5>;
+ vdd_l20_l21-supply = <&pm8994_s5>;
+ vdd_l25-supply = <&pm8994_s3>;
+
+ s3 {
+ regulator-min-microvolt = <1300000>;
+ regulator-max-microvolt = <1300000>;
+ };
+ s4 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+ s5 {
+ regulator-min-microvolt = <2150000>;
+ regulator-max-microvolt = <2150000>;
+ };
+ s7 {
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <800000>;
+ };
+
+ l1 {
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1000000>;
+ };
+ l2 {
+ regulator-min-microvolt = <1250000>;
+ regulator-max-microvolt = <1250000>;
+ };
+ l3 {
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <850000>;
+ };
+ l4 {
+ regulator-min-microvolt = <1225000>;
+ regulator-max-microvolt = <1225000>;
+ };
+ l6 {
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ };
+ l8 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+ l9 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+ l10 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+ l11 {
+ regulator-min-microvolt = <1150000>;
+ regulator-max-microvolt = <1150000>;
+ };
+ l12 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+ l13 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <2950000>;
+ };
+ l14 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+ l15 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+ l16 {
+ regulator-min-microvolt = <2700000>;
+ regulator-max-microvolt = <2700000>;
+ };
+ l17 {
+ regulator-min-microvolt = <2500000>;
+ regulator-max-microvolt = <2500000>;
+ };
+ l18 {
+ regulator-min-microvolt = <2700000>;
+ regulator-max-microvolt = <2900000>;
+ };
+ l19 {
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ };
+ l20 {
+ regulator-min-microvolt = <2950000>;
+ regulator-max-microvolt = <2950000>;
+ regulator-allow-set-load;
+ };
+ l21 {
+ regulator-min-microvolt = <2950000>;
+ regulator-max-microvolt = <2950000>;
+ };
+ l22 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+ l23 {
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ };
+ l24 {
+ regulator-min-microvolt = <3075000>;
+ regulator-max-microvolt = <3075000>;
+ };
+ l25 {
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-allow-set-load;
+ };
+ l27 {
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1000000>;
+ };
+ l28 {
+ regulator-min-microvolt = <925000>;
+ regulator-max-microvolt = <925000>;
+ regulator-allow-set-load;
+ };
+ l29 {
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ };
+ l30 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+ l32 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+ };
+ };
+ };
};
diff --git a/arch/arm64/boot/dts/qcom/ipq8074-hk01.dts b/arch/arm64/boot/dts/qcom/ipq8074-hk01.dts
new file mode 100644
index 000000000000..6a838b5d321e
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/ipq8074-hk01.dts
@@ -0,0 +1,52 @@
+/dts-v1/;
+/* Copyright (c) 2017, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+#include "ipq8074.dtsi"
+
+/ {
+ #address-cells = <0x2>;
+ #size-cells = <0x2>;
+ model = "Qualcomm Technologies, Inc. IPQ8074-HK01";
+ compatible = "qcom,ipq8074-hk01", "qcom,ipq8074";
+ interrupt-parent = <&intc>;
+
+ aliases {
+ serial0 = &blsp1_uart5;
+ };
+
+ chosen {
+ stdout-path = "serial0";
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0x0 0x40000000 0x0 0x20000000>;
+ };
+
+ soc {
+ pinctrl@1000000 {
+ serial_4_pins: serial4_pinmux {
+ mux {
+ pins = "gpio23", "gpio24";
+ function = "blsp4_uart1";
+ bias-disable;
+ };
+ };
+ };
+
+ serial@78b3000 {
+ pinctrl-0 = <&serial_4_pins>;
+ pinctrl-names = "default";
+ status = "ok";
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/qcom/ipq8074.dtsi b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
new file mode 100644
index 000000000000..2bc5dec5614d
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
@@ -0,0 +1,194 @@
+/*
+ * Copyright (c) 2017, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/qcom,gcc-ipq8074.h>
+
+/ {
+ model = "Qualcomm Technologies, Inc. IPQ8074";
+ compatible = "qcom,ipq8074";
+
+ soc: soc {
+ #address-cells = <0x1>;
+ #size-cells = <0x1>;
+ ranges = <0 0 0 0xffffffff>;
+ compatible = "simple-bus";
+
+ pinctrl@1000000 {
+ compatible = "qcom,ipq8074-pinctrl";
+ reg = <0x1000000 0x300000>;
+ interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <0x2>;
+ interrupt-controller;
+ #interrupt-cells = <0x2>;
+ };
+
+ intc: interrupt-controller@b000000 {
+ compatible = "qcom,msm-qgic2";
+ interrupt-controller;
+ #interrupt-cells = <0x3>;
+ reg = <0xb000000 0x1000>, <0xb002000 0x1000>;
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 2 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 3 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 4 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 1 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+ };
+
+ timer@b120000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ compatible = "arm,armv7-timer-mem";
+ reg = <0xb120000 0x1000>;
+ clock-frequency = <19200000>;
+
+ frame@b120000 {
+ frame-number = <0>;
+ interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0xb121000 0x1000>,
+ <0xb122000 0x1000>;
+ };
+
+ frame@b123000 {
+ frame-number = <1>;
+ interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0xb123000 0x1000>;
+ status = "disabled";
+ };
+
+ frame@b124000 {
+ frame-number = <2>;
+ interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0xb124000 0x1000>;
+ status = "disabled";
+ };
+
+ frame@b125000 {
+ frame-number = <3>;
+ interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0xb125000 0x1000>;
+ status = "disabled";
+ };
+
+ frame@b126000 {
+ frame-number = <4>;
+ interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0xb126000 0x1000>;
+ status = "disabled";
+ };
+
+ frame@b127000 {
+ frame-number = <5>;
+ interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0xb127000 0x1000>;
+ status = "disabled";
+ };
+
+ frame@b128000 {
+ frame-number = <6>;
+ interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0xb128000 0x1000>;
+ status = "disabled";
+ };
+ };
+
+ gcc: gcc@1800000 {
+ compatible = "qcom,gcc-ipq8074";
+ reg = <0x1800000 0x80000>;
+ #clock-cells = <0x1>;
+ #reset-cells = <0x1>;
+ };
+
+ blsp1_uart5: serial@78b3000 {
+ compatible = "qcom,msm-uartdm-v1.4", "qcom,msm-uartdm";
+ reg = <0x78b3000 0x200>;
+ interrupts = <GIC_SPI 308 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&gcc GCC_BLSP1_UART5_APPS_CLK>,
+ <&gcc GCC_BLSP1_AHB_CLK>;
+ clock-names = "core", "iface";
+ status = "disabled";
+ };
+ };
+
+ cpus {
+ #address-cells = <0x1>;
+ #size-cells = <0x0>;
+
+ CPU0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0>;
+ next-level-cache = <&L2_0>;
+ enable-method = "psci";
+ };
+
+ CPU1: cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ enable-method = "psci";
+ reg = <0x1>;
+ next-level-cache = <&L2_0>;
+ };
+
+ CPU2: cpu@2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ enable-method = "psci";
+ reg = <0x2>;
+ next-level-cache = <&L2_0>;
+ };
+
+ CPU3: cpu@3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ enable-method = "psci";
+ reg = <0x3>;
+ next-level-cache = <&L2_0>;
+ };
+
+ L2_0: l2-cache {
+ compatible = "cache";
+ cache-level = <0x2>;
+ };
+ };
+
+ psci {
+ compatible = "arm,psci-1.0";
+ method = "smc";
+ };
+
+ pmu {
+ compatible = "arm,armv8-pmuv3";
+ interrupts = <GIC_PPI 7 GIC_CPU_MASK_SIMPLE(4)>;
+ };
+
+ clocks {
+ sleep_clk: sleep_clk {
+ compatible = "fixed-clock";
+ clock-frequency = <32000>;
+ #clock-cells = <0>;
+ };
+
+ xo: xo {
+ compatible = "fixed-clock";
+ clock-frequency = <19200000>;
+ #clock-cells = <0>;
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index ab3093995ded..dc3817593e14 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -88,6 +88,11 @@
no-map;
};
+ venus_mem: venus@89900000 {
+ reg = <0x0 0x89900000 0x0 0x600000>;
+ no-map;
+ };
+
mba_mem: mba@8ea00000 {
no-map;
reg = <0 0x8ea00000 0 0x100000>;
@@ -204,6 +209,17 @@
};
+ gpu_opp_table: opp_table {
+ compatible = "operating-points-v2";
+
+ opp-400000000 {
+ opp-hz = /bits/ 64 <400000000>;
+ };
+ opp-19200000 {
+ opp-hz = /bits/ 64 <19200000>;
+ };
+ };
+
timer {
compatible = "arm,armv8-timer";
interrupts = <GIC_PPI 2 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
@@ -546,44 +562,40 @@
status = "disabled";
};
- usb_dev: usb@78d9000 {
+ otg: usb@78d9000 {
compatible = "qcom,ci-hdrc";
- reg = <0x78d9000 0x400>;
- dr_mode = "peripheral";
- interrupts = <GIC_SPI 134 IRQ_TYPE_LEVEL_HIGH>;
- usb-phy = <&usb_otg>;
- status = "disabled";
- };
-
- usb_host: ehci@78d9000 {
- compatible = "qcom,ehci-host";
- reg = <0x78d9000 0x400>;
- interrupts = <GIC_SPI 134 IRQ_TYPE_LEVEL_HIGH>;
- usb-phy = <&usb_otg>;
- status = "disabled";
- };
-
- usb_otg: phy@78d9000 {
- compatible = "qcom,usb-otg-snps";
- reg = <0x78d9000 0x400>;
+ reg = <0x78d9000 0x200>,
+ <0x78d9200 0x200>;
interrupts = <GIC_SPI 134 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
-
- qcom,vdd-levels = <500000 1000000 1320000>;
- qcom,phy-init-sequence = <0x44 0x6B 0x24 0x13>;
- dr_mode = "peripheral";
- qcom,otg-control = <2>; // PMIC
- qcom,manual-pullup;
-
clocks = <&gcc GCC_USB_HS_AHB_CLK>,
- <&gcc GCC_USB_HS_SYSTEM_CLK>,
- <&gcc GCC_USB2A_PHY_SLEEP_CLK>;
- clock-names = "iface", "core", "sleep";
-
- resets = <&gcc GCC_USB2A_PHY_BCR>,
- <&gcc GCC_USB_HS_BCR>;
- reset-names = "phy", "link";
+ <&gcc GCC_USB_HS_SYSTEM_CLK>;
+ clock-names = "iface", "core";
+ assigned-clocks = <&gcc GCC_USB_HS_SYSTEM_CLK>;
+ assigned-clock-rates = <80000000>;
+ resets = <&gcc GCC_USB_HS_BCR>;
+ reset-names = "core";
+ phy_type = "ulpi";
+ dr_mode = "otg";
+ ahb-burst-config = <0>;
+ phy-names = "usb-phy";
+ phys = <&usb_hs_phy>;
status = "disabled";
+ #reset-cells = <1>;
+
+ ulpi {
+ usb_hs_phy: phy {
+ compatible = "qcom,usb-hs-phy-msm8916",
+ "qcom,usb-hs-phy";
+ #phy-cells = <0>;
+ clocks = <&xo_board>, <&gcc GCC_USB2A_PHY_SLEEP_CLK>;
+ clock-names = "ref", "sleep";
+ resets = <&gcc GCC_USB2A_PHY_BCR>, <&otg 0>;
+ reset-names = "phy", "por";
+ qcom,init-seq = /bits/ 8 <0x0 0x44
+ 0x1 0x6b 0x2 0x24 0x3 0x13>;
+ };
+ };
};
intc: interrupt-controller@b000000 {
@@ -698,6 +710,84 @@
#thermal-sensor-cells = <1>;
};
+ apps_iommu: iommu@1ef0000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ #iommu-cells = <1>;
+ compatible = "qcom,msm8916-iommu", "qcom,msm-iommu-v1";
+ ranges = <0 0x1e20000 0x40000>;
+ reg = <0x1ef0000 0x3000>;
+ clocks = <&gcc GCC_SMMU_CFG_CLK>,
+ <&gcc GCC_APSS_TCU_CLK>;
+ clock-names = "iface", "bus";
+ qcom,iommu-secure-id = <17>;
+
+ // mdp_0:
+ iommu-ctx@4000 {
+ compatible = "qcom,msm-iommu-v1-ns";
+ reg = <0x4000 0x1000>;
+ interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ // venus_ns:
+ iommu-ctx@5000 {
+ compatible = "qcom,msm-iommu-v1-sec";
+ reg = <0x5000 0x1000>;
+ interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+
+ gpu_iommu: iommu@1f08000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ #iommu-cells = <1>;
+ compatible = "qcom,msm8916-iommu", "qcom,msm-iommu-v1";
+ ranges = <0 0x1f08000 0x10000>;
+ clocks = <&gcc GCC_SMMU_CFG_CLK>,
+ <&gcc GCC_GFX_TCU_CLK>;
+ clock-names = "iface", "bus";
+ qcom,iommu-secure-id = <18>;
+
+ // gfx3d_user:
+ iommu-ctx@1000 {
+ compatible = "qcom,msm-iommu-v1-ns";
+ reg = <0x1000 0x1000>;
+ interrupts = <GIC_SPI 241 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ // gfx3d_priv:
+ iommu-ctx@2000 {
+ compatible = "qcom,msm-iommu-v1-ns";
+ reg = <0x2000 0x1000>;
+ interrupts = <GIC_SPI 242 0>;
+ };
+ };
+
+ gpu@1c00000 {
+ compatible = "qcom,adreno-306.0", "qcom,adreno";
+ reg = <0x01c00000 0x20000>;
+ reg-names = "kgsl_3d0_reg_memory";
+ interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "kgsl_3d0_irq";
+ clock-names =
+ "core",
+ "iface",
+ "mem",
+ "mem_iface",
+ "alt_mem_iface",
+ "gfx3d";
+ clocks =
+ <&gcc GCC_OXILI_GFX3D_CLK>,
+ <&gcc GCC_OXILI_AHB_CLK>,
+ <&gcc GCC_OXILI_GMEM_CLK>,
+ <&gcc GCC_BIMC_GFX_CLK>,
+ <&gcc GCC_BIMC_GPU_CLK>,
+ <&gcc GFX3D_CLK_SRC>;
+ power-domains = <&gcc OXILI_GDSC>;
+ operating-points-v2 = <&gpu_opp_table>;
+ iommus = <&gpu_iommu 1>, <&gpu_iommu 2>;
+ };
+
mdss: mdss@1a00000 {
compatible = "qcom,mdss";
reg = <0x1a00000 0x1000>,
@@ -739,6 +829,8 @@
"core_clk",
"vsync_clk";
+ iommus = <&apps_iommu 4>;
+
ports {
#address-cells = <1>;
#size-cells = <0>;
@@ -994,7 +1086,7 @@
};
replicator@824000 {
- compatible = "qcom,coresight-replicator1x", "arm,primecell";
+ compatible = "arm,coresight-dynamic-replicator", "arm,primecell";
reg = <0x824000 0x1000>;
clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>;
@@ -1116,6 +1208,38 @@
};
};
+ debug@850000 {
+ compatible = "arm,coresight-cpu-debug","arm,primecell";
+ reg = <0x850000 0x1000>;
+ clocks = <&rpmcc RPM_QDSS_CLK>;
+ clock-names = "apb_pclk";
+ cpu = <&CPU0>;
+ };
+
+ debug@852000 {
+ compatible = "arm,coresight-cpu-debug","arm,primecell";
+ reg = <0x852000 0x1000>;
+ clocks = <&rpmcc RPM_QDSS_CLK>;
+ clock-names = "apb_pclk";
+ cpu = <&CPU1>;
+ };
+
+ debug@854000 {
+ compatible = "arm,coresight-cpu-debug","arm,primecell";
+ reg = <0x854000 0x1000>;
+ clocks = <&rpmcc RPM_QDSS_CLK>;
+ clock-names = "apb_pclk";
+ cpu = <&CPU2>;
+ };
+
+ debug@856000 {
+ compatible = "arm,coresight-cpu-debug","arm,primecell";
+ reg = <0x856000 0x1000>;
+ clocks = <&rpmcc RPM_QDSS_CLK>;
+ clock-names = "apb_pclk";
+ cpu = <&CPU3>;
+ };
+
etm@85c000 {
compatible = "arm,coresight-etm4x", "arm,primecell";
reg = <0x85c000 0x1000>;
@@ -1179,6 +1303,28 @@
};
};
};
+
+ venus: video-codec@1d00000 {
+ compatible = "qcom,msm8916-venus";
+ reg = <0x01d00000 0xff000>;
+ interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+ power-domains = <&gcc VENUS_GDSC>;
+ clocks = <&gcc GCC_VENUS0_VCODEC0_CLK>,
+ <&gcc GCC_VENUS0_AHB_CLK>,
+ <&gcc GCC_VENUS0_AXI_CLK>;
+ clock-names = "core", "iface", "bus";
+ iommus = <&apps_iommu 5>;
+ memory-region = <&venus_mem>;
+ status = "okay";
+
+ video-decoder {
+ compatible = "venus-decoder";
+ };
+
+ video-encoder {
+ compatible = "venus-encoder";
+ };
+ };
};
smd {
diff --git a/arch/arm64/boot/dts/qcom/msm8992.dtsi b/arch/arm64/boot/dts/qcom/msm8992.dtsi
index 44b2d37d8c4b..171578747ed0 100644
--- a/arch/arm64/boot/dts/qcom/msm8992.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8992.dtsi
@@ -68,6 +68,30 @@
clock-frequency = <32768>;
};
+ vreg_vph_pwr: vreg-vph-pwr {
+ compatible = "regulator-fixed";
+ status = "okay";
+ regulator-name = "vph-pwr";
+
+ regulator-min-microvolt = <3600000>;
+ regulator-max-microvolt = <3600000>;
+
+ regulator-always-on;
+ };
+
+ sfpb_mutex: hwmutex {
+ compatible = "qcom,sfpb-mutex";
+ syscon = <&sfpb_mutex_regs 0x0 0x100>;
+ #hwlock-cells = <1>;
+ };
+
+ smem {
+ compatible = "qcom,smem";
+ memory-region = <&smem_region>;
+ qcom,rpm-msg-ram = <&rpm_msg_ram>;
+ hwlocks = <&sfpb_mutex 3>;
+ };
+
soc {
#address-cells = <1>;
#size-cells = <1>;
@@ -82,6 +106,11 @@
<0xf9002000 0x1000>;
};
+ apcs: syscon@f900d000 {
+ compatible = "syscon";
+ reg = <0xf900d000 0x2000>;
+ };
+
timer@f9020000 {
#address-cells = <1>;
#size-cells = <1>;
@@ -172,12 +201,36 @@
#power-domain-cells = <1>;
reg = <0xfc400000 0x2000>;
};
+
+ rpm_msg_ram: memory@fc428000 {
+ compatible = "qcom,rpm-msg-ram";
+ reg = <0xfc428000 0x4000>;
+ };
+
+ sfpb_mutex_regs: syscon@fd484000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "syscon";
+ reg = <0xfd484000 0x400>;
+ };
};
memory {
device_type = "memory";
reg = <0 0 0 0>; // bootloader will update
};
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ smem_region: smem@6a00000 {
+ reg = <0x0 0x6a00000 0x0 0x200000>;
+ no-map;
+ };
+ };
+
};
diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
index 9bc9c857a000..887b61c872dd 100644
--- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
@@ -276,12 +276,83 @@
hwlocks = <&tcsr_mutex 3>;
};
+ rpm-glink {
+ compatible = "qcom,glink-rpm";
+
+ interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
+
+ qcom,rpm-msg-ram = <&rpm_msg_ram>;
+
+ mboxes = <&apcs_glb 0>;
+
+ rpm_requests {
+ compatible = "qcom,rpm-msm8996";
+ qcom,glink-channels = "rpm_requests";
+
+ pm8994-regulators {
+ compatible = "qcom,rpm-pm8994-regulators";
+
+ pm8994_s1: s1 {};
+ pm8994_s2: s2 {};
+ pm8994_s3: s3 {};
+ pm8994_s4: s4 {};
+ pm8994_s5: s5 {};
+ pm8994_s6: s6 {};
+ pm8994_s7: s7 {};
+ pm8994_s8: s8 {};
+ pm8994_s9: s9 {};
+ pm8994_s10: s10 {};
+ pm8994_s11: s11 {};
+ pm8994_s12: s12 {};
+
+ pm8994_l1: l1 {};
+ pm8994_l2: l2 {};
+ pm8994_l3: l3 {};
+ pm8994_l4: l4 {};
+ pm8994_l5: l5 {};
+ pm8994_l6: l6 {};
+ pm8994_l7: l7 {};
+ pm8994_l8: l8 {};
+ pm8994_l9: l9 {};
+ pm8994_l10: l10 {};
+ pm8994_l11: l11 {};
+ pm8994_l12: l12 {};
+ pm8994_l13: l13 {};
+ pm8994_l14: l14 {};
+ pm8994_l15: l15 {};
+ pm8994_l16: l16 {};
+ pm8994_l17: l17 {};
+ pm8994_l18: l18 {};
+ pm8994_l19: l19 {};
+ pm8994_l20: l20 {};
+ pm8994_l21: l21 {};
+ pm8994_l22: l22 {};
+ pm8994_l23: l23 {};
+ pm8994_l24: l24 {};
+ pm8994_l25: l25 {};
+ pm8994_l26: l26 {};
+ pm8994_l27: l27 {};
+ pm8994_l28: l28 {};
+ pm8994_l29: l29 {};
+ pm8994_l30: l30 {};
+ pm8994_l31: l31 {};
+ pm8994_l32: l32 {};
+ };
+
+ };
+ };
+
soc: soc {
#address-cells = <1>;
#size-cells = <1>;
ranges = <0 0 0 0xffffffff>;
compatible = "simple-bus";
+ rpm_msg_ram: memory@68000 {
+ compatible = "qcom,rpm-msg-ram";
+ reg = <0x68000 0x6000>;
+ };
+
tcsr_mutex_regs: syscon@740000 {
compatible = "syscon";
reg = <0x740000 0x20000>;
@@ -303,6 +374,13 @@
reg = <0x9820000 0x1000>;
};
+ apcs_glb: mailbox@9820000 {
+ compatible = "qcom,msm8996-apcs-hmss-global";
+ reg = <0x9820000 0x1000>;
+
+ #mbox-cells = <1>;
+ };
+
gcc: clock-controller@300000 {
compatible = "qcom,gcc-msm8996";
#clock-cells = <1>;
@@ -311,6 +389,12 @@
reg = <0x300000 0x90000>;
};
+ kryocc: clock-controller@6400000 {
+ compatible = "qcom,apcc-msm8996";
+ reg = <0x6400000 0x90000>;
+ #clock-cells = <1>;
+ };
+
blsp1_spi0: spi@07575000 {
compatible = "qcom,spi-qup-v2.2.1";
reg = <0x07575000 0x600>;
@@ -532,6 +616,209 @@
<960000000>,
<825000000>;
};
+
+ qfprom@74000 {
+ compatible = "qcom,qfprom";
+ reg = <0x74000 0x8ff>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ qusb2p_hstx_trim: hstx_trim@24e {
+ reg = <0x24e 0x2>;
+ bits = <5 4>;
+ };
+
+ qusb2s_hstx_trim: hstx_trim@24f {
+ reg = <0x24f 0x1>;
+ bits = <1 4>;
+ };
+ };
+
+ phy@34000 {
+ compatible = "qcom,msm8996-qmp-pcie-phy";
+ reg = <0x34000 0x488>;
+ #clock-cells = <1>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ clocks = <&gcc GCC_PCIE_PHY_AUX_CLK>,
+ <&gcc GCC_PCIE_PHY_CFG_AHB_CLK>,
+ <&gcc GCC_PCIE_CLKREF_CLK>;
+ clock-names = "aux", "cfg_ahb", "ref";
+
+ vdda-phy-supply = <&pm8994_l28>;
+ vdda-pll-supply = <&pm8994_l12>;
+
+ resets = <&gcc GCC_PCIE_PHY_BCR>,
+ <&gcc GCC_PCIE_PHY_COM_BCR>,
+ <&gcc GCC_PCIE_PHY_COM_NOCSR_BCR>;
+ reset-names = "phy", "common", "cfg";
+ status = "disabled";
+
+ pciephy_0: lane@35000 {
+ reg = <0x035000 0x130>,
+ <0x035200 0x200>,
+ <0x035400 0x1dc>;
+ #phy-cells = <0>;
+
+ clock-output-names = "pcie_0_pipe_clk_src";
+ clocks = <&gcc GCC_PCIE_0_PIPE_CLK>;
+ clock-names = "pipe0";
+ resets = <&gcc GCC_PCIE_0_PHY_BCR>;
+ reset-names = "lane0";
+ };
+
+ pciephy_1: lane@36000 {
+ reg = <0x036000 0x130>,
+ <0x036200 0x200>,
+ <0x036400 0x1dc>;
+ #phy-cells = <0>;
+
+ clock-output-names = "pcie_1_pipe_clk_src";
+ clocks = <&gcc GCC_PCIE_1_PIPE_CLK>;
+ clock-names = "pipe1";
+ resets = <&gcc GCC_PCIE_1_PHY_BCR>;
+ reset-names = "lane1";
+ };
+
+ pciephy_2: lane@37000 {
+ reg = <0x037000 0x130>,
+ <0x037200 0x200>,
+ <0x037400 0x1dc>;
+ #phy-cells = <0>;
+
+ clock-output-names = "pcie_2_pipe_clk_src";
+ clocks = <&gcc GCC_PCIE_2_PIPE_CLK>;
+ clock-names = "pipe2";
+ resets = <&gcc GCC_PCIE_2_PHY_BCR>;
+ reset-names = "lane2";
+ };
+ };
+
+ phy@7410000 {
+ compatible = "qcom,msm8996-qmp-usb3-phy";
+ reg = <0x7410000 0x1c4>;
+ #clock-cells = <1>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ clocks = <&gcc GCC_USB3_PHY_AUX_CLK>,
+ <&gcc GCC_USB_PHY_CFG_AHB2PHY_CLK>,
+ <&gcc GCC_USB3_CLKREF_CLK>;
+ clock-names = "aux", "cfg_ahb", "ref";
+
+ vdda-phy-supply = <&pm8994_l28>;
+ vdda-pll-supply = <&pm8994_l12>;
+
+ resets = <&gcc GCC_USB3_PHY_BCR>,
+ <&gcc GCC_USB3PHY_PHY_BCR>;
+ reset-names = "phy", "common";
+ status = "disabled";
+
+ ssusb_phy_0: lane@7410200 {
+ reg = <0x7410200 0x200>,
+ <0x7410400 0x130>,
+ <0x7410600 0x1a8>;
+ #phy-cells = <0>;
+
+ clock-output-names = "usb3_phy_pipe_clk_src";
+ clocks = <&gcc GCC_USB3_PHY_PIPE_CLK>;
+ clock-names = "pipe0";
+ };
+ };
+
+ hsusb_phy1: phy@7411000 {
+ compatible = "qcom,msm8996-qusb2-phy";
+ reg = <0x7411000 0x180>;
+ #phy-cells = <0>;
+
+ clocks = <&gcc GCC_USB_PHY_CFG_AHB2PHY_CLK>,
+ <&gcc GCC_RX1_USB2_CLKREF_CLK>;
+ clock-names = "cfg_ahb", "ref";
+
+ vdda-pll-supply = <&pm8994_l12>;
+ vdda-phy-dpdm-supply = <&pm8994_l24>;
+
+ resets = <&gcc GCC_QUSB2PHY_PRIM_BCR>;
+ nvmem-cells = <&qusb2p_hstx_trim>;
+ status = "disabled";
+ };
+
+ hsusb_phy2: phy@7412000 {
+ compatible = "qcom,msm8996-qusb2-phy";
+ reg = <0x7412000 0x180>;
+ #phy-cells = <0>;
+
+ clocks = <&gcc GCC_USB_PHY_CFG_AHB2PHY_CLK>,
+ <&gcc GCC_RX2_USB2_CLKREF_CLK>;
+ clock-names = "cfg_ahb", "ref";
+
+ vdda-pll-supply = <&pm8994_l12>;
+ vdda-phy-dpdm-supply = <&pm8994_l24>;
+
+ resets = <&gcc GCC_QUSB2PHY_SEC_BCR>;
+ nvmem-cells = <&qusb2s_hstx_trim>;
+ status = "disabled";
+ };
+
+ usb2: usb@7600000 {
+ compatible = "qcom,dwc3";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ clocks = <&gcc GCC_PERIPH_NOC_USB20_AHB_CLK>,
+ <&gcc GCC_USB20_MASTER_CLK>,
+ <&gcc GCC_USB20_MOCK_UTMI_CLK>,
+ <&gcc GCC_USB20_SLEEP_CLK>,
+ <&gcc GCC_USB_PHY_CFG_AHB2PHY_CLK>;
+
+ assigned-clocks = <&gcc GCC_USB20_MOCK_UTMI_CLK>,
+ <&gcc GCC_USB20_MASTER_CLK>;
+ assigned-clock-rates = <19200000>, <60000000>;
+
+ power-domains = <&gcc USB30_GDSC>;
+ status = "disabled";
+
+ dwc3@7600000 {
+ compatible = "snps,dwc3";
+ reg = <0x7600000 0xcc00>;
+ interrupts = <0 138 0>;
+ phys = <&hsusb_phy2>;
+ phy-names = "usb2-phy";
+ };
+ };
+
+ usb3: usb@6a00000 {
+ compatible = "qcom,dwc3";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ clocks = <&gcc GCC_SYS_NOC_USB3_AXI_CLK>,
+ <&gcc GCC_USB30_MASTER_CLK>,
+ <&gcc GCC_AGGRE2_USB3_AXI_CLK>,
+ <&gcc GCC_USB30_MOCK_UTMI_CLK>,
+ <&gcc GCC_USB30_SLEEP_CLK>,
+ <&gcc GCC_USB_PHY_CFG_AHB2PHY_CLK>;
+
+ assigned-clocks = <&gcc GCC_USB30_MOCK_UTMI_CLK>,
+ <&gcc GCC_USB30_MASTER_CLK>;
+ assigned-clock-rates = <19200000>, <120000000>;
+
+ power-domains = <&gcc USB30_GDSC>;
+ status = "disabled";
+
+ dwc3@6a00000 {
+ compatible = "snps,dwc3";
+ reg = <0x6a00000 0xcc00>;
+ interrupts = <0 131 0>;
+ phys = <&hsusb_phy1>, <&ssusb_phy_0>;
+ phy-names = "usb2-phy", "usb3-phy";
+ };
+ };
};
adsp-pil {
@@ -552,6 +839,15 @@
qcom,smem-states = <&adsp_smp2p_out 0>;
qcom,smem-state-names = "stop";
+
+ smd-edge {
+ interrupts = <GIC_SPI 156 IRQ_TYPE_EDGE_RISING>;
+
+ label = "lpass";
+ qcom,ipc = <&apcs 16 8>;
+ qcom,smd-edge = <1>;
+ qcom,remote-pid = <2>;
+ };
};
adsp-smp2p {
@@ -578,6 +874,30 @@
};
};
+ modem-smp2p {
+ compatible = "qcom,smp2p";
+ qcom,smem = <435>, <428>;
+
+ interrupts = <GIC_SPI 451 IRQ_TYPE_EDGE_RISING>;
+
+ qcom,ipc = <&apcs 16 14>;
+
+ qcom,local-pid = <0>;
+ qcom,remote-pid = <1>;
+
+ modem_smp2p_out: master-kernel {
+ qcom,entry-name = "master-kernel";
+ #qcom,smem-state-cells = <1>;
+ };
+
+ modem_smp2p_in: slave-kernel {
+ qcom,entry-name = "slave-kernel";
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+ };
+
smp2p-slpi {
compatible = "qcom,smp2p";
qcom,smem = <481>, <430>;
diff --git a/arch/arm64/boot/dts/qcom/pmi8994.dtsi b/arch/arm64/boot/dts/qcom/pmi8994.dtsi
index d3879a4e8076..57673f92805d 100644
--- a/arch/arm64/boot/dts/qcom/pmi8994.dtsi
+++ b/arch/arm64/boot/dts/qcom/pmi8994.dtsi
@@ -8,6 +8,23 @@
reg = <0x2 SPMI_USID>;
#address-cells = <1>;
#size-cells = <0>;
+
+ pmi8994_gpios: gpios@c000 {
+ compatible = "qcom,pmi8994-gpio", "qcom,spmi-gpio";
+ reg = <0xc000>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupts = <2 0xc0 0 IRQ_TYPE_NONE>,
+ <2 0xc1 0 IRQ_TYPE_NONE>,
+ <2 0xc2 0 IRQ_TYPE_NONE>,
+ <2 0xc3 0 IRQ_TYPE_NONE>,
+ <2 0xc4 0 IRQ_TYPE_NONE>,
+ <2 0xc5 0 IRQ_TYPE_NONE>,
+ <2 0xc6 0 IRQ_TYPE_NONE>,
+ <2 0xc7 0 IRQ_TYPE_NONE>,
+ <2 0xc8 0 IRQ_TYPE_NONE>,
+ <2 0xc9 0 IRQ_TYPE_NONE>;
+ };
};
pmic@3 {
diff --git a/arch/arm64/boot/dts/realtek/Makefile b/arch/arm64/boot/dts/realtek/Makefile
new file mode 100644
index 000000000000..8521e921e59a
--- /dev/null
+++ b/arch/arm64/boot/dts/realtek/Makefile
@@ -0,0 +1,5 @@
+dtb-$(CONFIG_ARCH_REALTEK) += rtd1295-zidoo-x9s.dtb
+
+always := $(dtb-y)
+subdir-y := $(dts-dirs)
+clean-files := *.dtb
diff --git a/arch/arm64/boot/dts/realtek/rtd1295-zidoo-x9s.dts b/arch/arm64/boot/dts/realtek/rtd1295-zidoo-x9s.dts
new file mode 100644
index 000000000000..6efa8091bb30
--- /dev/null
+++ b/arch/arm64/boot/dts/realtek/rtd1295-zidoo-x9s.dts
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2016-2017 Andreas Färber
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+/dts-v1/;
+
+/memreserve/ 0x0000000000000000 0x0000000000030000;
+/memreserve/ 0x000000000001f000 0x0000000000001000;
+/memreserve/ 0x0000000000030000 0x00000000000d0000;
+/memreserve/ 0x0000000001b00000 0x00000000004be000;
+/memreserve/ 0x0000000001ffe000 0x0000000000004000;
+
+#include "rtd1295.dtsi"
+
+/ {
+ compatible = "zidoo,x9s", "realtek,rtd1295";
+ model = "Zidoo X9S";
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x80000000>;
+ };
+
+ aliases {
+ serial0 = &uart0;
+ serial1 = &uart1;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&uart1 {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/realtek/rtd1295.dtsi b/arch/arm64/boot/dts/realtek/rtd1295.dtsi
new file mode 100644
index 000000000000..d8f84666c8ce
--- /dev/null
+++ b/arch/arm64/boot/dts/realtek/rtd1295.dtsi
@@ -0,0 +1,131 @@
+/*
+ * Realtek RTD1295 SoC
+ *
+ * Copyright (c) 2016-2017 Andreas Färber
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ compatible = "realtek,rtd1295";
+ interrupt-parent = <&gic>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ cpus {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0 0x0>;
+ next-level-cache = <&l2>;
+ };
+
+ cpu1: cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0 0x1>;
+ next-level-cache = <&l2>;
+ };
+
+ cpu2: cpu@2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0 0x2>;
+ next-level-cache = <&l2>;
+ };
+
+ cpu3: cpu@3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0 0x3>;
+ next-level-cache = <&l2>;
+ };
+
+ l2: l2-cache {
+ compatible = "cache";
+ };
+ };
+
+ reserved-memory {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ tee@10100000 {
+ reg = <0x10100000 0xf00000>;
+ no-map;
+ };
+ };
+
+ arm-pmu {
+ compatible = "arm,cortex-a53-pmu";
+ interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 13
+ (GIC_CPU_MASK_RAW(0xf) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 14
+ (GIC_CPU_MASK_RAW(0xf) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 11
+ (GIC_CPU_MASK_RAW(0xf) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 10
+ (GIC_CPU_MASK_RAW(0xf) | IRQ_TYPE_LEVEL_LOW)>;
+ };
+
+ soc {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ /* Exclude up to 2 GiB of RAM */
+ ranges = <0x80000000 0x80000000 0x80000000>;
+
+ uart0: serial@98007800 {
+ compatible = "snps,dw-apb-uart";
+ reg = <0x98007800 0x400>,
+ <0x98007000 0x100>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ clock-frequency = <27000000>;
+ status = "disabled";
+ };
+
+ uart1: serial@9801b200 {
+ compatible = "snps,dw-apb-uart";
+ reg = <0x9801b200 0x100>,
+ <0x9801b00c 0x100>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ clock-frequency = <432000000>;
+ status = "disabled";
+ };
+
+ uart2: serial@9801b400 {
+ compatible = "snps,dw-apb-uart";
+ reg = <0x9801b400 0x100>,
+ <0x9801b00c 0x100>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ clock-frequency = <432000000>;
+ status = "disabled";
+ };
+
+ gic: interrupt-controller@ff011000 {
+ compatible = "arm,gic-400";
+ reg = <0xff011000 0x1000>,
+ <0xff012000 0x2000>,
+ <0xff014000 0x2000>,
+ <0xff016000 0x2000>;
+ interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile
index 1618e0a3c81d..381928bc1358 100644
--- a/arch/arm64/boot/dts/renesas/Makefile
+++ b/arch/arm64/boot/dts/renesas/Makefile
@@ -1,5 +1,8 @@
dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-salvator-x.dtb r8a7795-h3ulcb.dtb
+dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-salvator-xs.dtb
+dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-es1-salvator-x.dtb r8a7795-es1-h3ulcb.dtb
dtb-$(CONFIG_ARCH_R8A7796) += r8a7796-salvator-x.dtb r8a7796-m3ulcb.dtb
+dtb-$(CONFIG_ARCH_R8A77995) += r8a77995-draak.dtb
always := $(dtb-y)
clean-files := *.dtb
diff --git a/arch/arm64/boot/dts/renesas/r8a7795-es1-h3ulcb.dts b/arch/arm64/boot/dts/renesas/r8a7795-es1-h3ulcb.dts
new file mode 100644
index 000000000000..dd4f9b6a4254
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r8a7795-es1-h3ulcb.dts
@@ -0,0 +1,40 @@
+/*
+ * Device Tree Source for the H3ULCB (R-Car Starter Kit Premier) board
+ *
+ * Copyright (C) 2016 Renesas Electronics Corp.
+ * Copyright (C) 2016 Cogent Embedded, Inc.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/dts-v1/;
+#include "r8a7795-es1.dtsi"
+#include "ulcb.dtsi"
+
+/ {
+ model = "Renesas H3ULCB board based on r8a7795 ES1.x";
+ compatible = "renesas,h3ulcb", "renesas,r8a7795";
+
+ memory@48000000 {
+ device_type = "memory";
+ /* first 128MB is reserved for secure area. */
+ reg = <0x0 0x48000000 0x0 0x38000000>;
+ };
+
+ memory@500000000 {
+ device_type = "memory";
+ reg = <0x5 0x00000000 0x0 0x40000000>;
+ };
+
+ memory@600000000 {
+ device_type = "memory";
+ reg = <0x6 0x00000000 0x0 0x40000000>;
+ };
+
+ memory@700000000 {
+ device_type = "memory";
+ reg = <0x7 0x00000000 0x0 0x40000000>;
+ };
+};
diff --git a/arch/arm64/boot/dts/renesas/r8a7795-es1-salvator-x.dts b/arch/arm64/boot/dts/renesas/r8a7795-es1-salvator-x.dts
new file mode 100644
index 000000000000..3f7d5f51e428
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r8a7795-es1-salvator-x.dts
@@ -0,0 +1,113 @@
+/*
+ * Device Tree Source for the Salvator-X board
+ *
+ * Copyright (C) 2015 Renesas Electronics Corp.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/dts-v1/;
+#include "r8a7795-es1.dtsi"
+#include "salvator-x.dtsi"
+
+/ {
+ model = "Renesas Salvator-X board based on r8a7795 ES1.x";
+ compatible = "renesas,salvator-x", "renesas,r8a7795";
+
+ memory@48000000 {
+ device_type = "memory";
+ /* first 128MB is reserved for secure area. */
+ reg = <0x0 0x48000000 0x0 0x38000000>;
+ };
+
+ memory@500000000 {
+ device_type = "memory";
+ reg = <0x5 0x00000000 0x0 0x40000000>;
+ };
+
+ memory@600000000 {
+ device_type = "memory";
+ reg = <0x6 0x00000000 0x0 0x40000000>;
+ };
+
+ memory@700000000 {
+ device_type = "memory";
+ reg = <0x7 0x00000000 0x0 0x40000000>;
+ };
+};
+
+&du {
+ clocks = <&cpg CPG_MOD 724>,
+ <&cpg CPG_MOD 723>,
+ <&cpg CPG_MOD 722>,
+ <&cpg CPG_MOD 721>,
+ <&cpg CPG_MOD 727>,
+ <&versaclock5 1>,
+ <&x21_clk>,
+ <&x22_clk>,
+ <&versaclock5 2>;
+ clock-names = "du.0", "du.1", "du.2", "du.3", "lvds.0",
+ "dclkin.0", "dclkin.1", "dclkin.2", "dclkin.3";
+};
+
+&ehci2 {
+ status = "okay";
+};
+
+&hdmi0 {
+ status = "okay";
+
+ ports {
+ port@1 {
+ reg = <1>;
+ rcar_dw_hdmi0_out: endpoint {
+ remote-endpoint = <&hdmi0_con>;
+ };
+ };
+ };
+};
+
+&hdmi0_con {
+ remote-endpoint = <&rcar_dw_hdmi0_out>;
+};
+
+&hdmi1 {
+ status = "okay";
+
+ ports {
+ port@1 {
+ reg = <1>;
+ rcar_dw_hdmi1_out: endpoint {
+ remote-endpoint = <&hdmi1_con>;
+ };
+ };
+ };
+};
+
+&hdmi1_con {
+ remote-endpoint = <&rcar_dw_hdmi1_out>;
+};
+
+&ohci2 {
+ status = "okay";
+};
+
+&pfc {
+ usb2_pins: usb2 {
+ groups = "usb2";
+ function = "usb2";
+ };
+};
+
+&sata {
+ status = "okay";
+};
+
+&usb2_phy2 {
+ pinctrl-0 = <&usb2_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/renesas/r8a7795-es1.dtsi b/arch/arm64/boot/dts/renesas/r8a7795-es1.dtsi
new file mode 100644
index 000000000000..aaa5e67a963e
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r8a7795-es1.dtsi
@@ -0,0 +1,91 @@
+/*
+ * Device Tree Source for the r8a7795 ES1.x SoC
+ *
+ * Copyright (C) 2015 Renesas Electronics Corp.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include "r8a7795.dtsi"
+
+&soc {
+ xhci1: usb@ee0400000 {
+ compatible = "renesas,xhci-r8a7795", "renesas,rcar-gen3-xhci";
+ reg = <0 0xee040000 0 0xc00>;
+ interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 327>;
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 327>;
+ status = "disabled";
+ };
+
+ /delete-node/ usb-phy@ee0e0200;
+ /delete-node/ usb@ee0e0100;
+ /delete-node/ usb@ee0e0000;
+ /delete-node/ usb@e659c000;
+
+ /delete-node/ dma-controller@e6460000;
+ /delete-node/ dma-controller@e6470000;
+
+ fcpf2: fcp@fe952000 {
+ compatible = "renesas,fcpf";
+ reg = <0 0xfe952000 0 0x200>;
+ clocks = <&cpg CPG_MOD 613>;
+ power-domains = <&sysc R8A7795_PD_A3VP>;
+ resets = <&cpg 613>;
+ };
+
+ vspi2: vsp@fe9c0000 {
+ compatible = "renesas,vsp2";
+ reg = <0 0xfe9c0000 0 0x8000>;
+ interrupts = <GIC_SPI 446 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 629>;
+ power-domains = <&sysc R8A7795_PD_A3VP>;
+ resets = <&cpg 629>;
+
+ renesas,fcp = <&fcpvi2>;
+ };
+
+ fcpvi2: fcp@fe9cf000 {
+ compatible = "renesas,fcpv";
+ reg = <0 0xfe9cf000 0 0x200>;
+ clocks = <&cpg CPG_MOD 609>;
+ power-domains = <&sysc R8A7795_PD_A3VP>;
+ resets = <&cpg 609>;
+ };
+
+ vspd3: vsp@fea38000 {
+ compatible = "renesas,vsp2";
+ reg = <0 0xfea38000 0 0x4000>;
+ interrupts = <GIC_SPI 469 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 620>;
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 620>;
+
+ renesas,fcp = <&fcpvd3>;
+ };
+
+ fcpvd3: fcp@fea3f000 {
+ compatible = "renesas,fcpv";
+ reg = <0 0xfea3f000 0 0x200>;
+ clocks = <&cpg CPG_MOD 600>;
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 600>;
+ };
+
+ fdp1@fe948000 {
+ compatible = "renesas,fdp1";
+ reg = <0 0xfe948000 0 0x2400>;
+ interrupts = <GIC_SPI 264 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 117>;
+ power-domains = <&sysc R8A7795_PD_A3VP>;
+ resets = <&cpg 117>;
+ renesas,fcp = <&fcpf2>;
+ };
+};
+
+&du {
+ vsps = <&vspd0 &vspd1 &vspd2 &vspd3>;
+};
diff --git a/arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts b/arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts
index ab352159de65..0afe777973de 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts
+++ b/arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts
@@ -11,22 +11,12 @@
/dts-v1/;
#include "r8a7795.dtsi"
-#include <dt-bindings/gpio/gpio.h>
-#include <dt-bindings/input/input.h>
+#include "ulcb.dtsi"
/ {
- model = "Renesas H3ULCB board based on r8a7795";
+ model = "Renesas H3ULCB board based on r8a7795 ES2.0+";
compatible = "renesas,h3ulcb", "renesas,r8a7795";
- aliases {
- serial0 = &scif2;
- ethernet0 = &avb;
- };
-
- chosen {
- stdout-path = "serial0:115200n8";
- };
-
memory@48000000 {
device_type = "memory";
/* first 128MB is reserved for secure area. */
@@ -47,330 +37,18 @@
device_type = "memory";
reg = <0x7 0x00000000 0x0 0x40000000>;
};
-
- leds {
- compatible = "gpio-leds";
-
- led5 {
- gpios = <&gpio6 12 GPIO_ACTIVE_HIGH>;
- };
- led6 {
- gpios = <&gpio6 13 GPIO_ACTIVE_HIGH>;
- };
- };
-
- keyboard {
- compatible = "gpio-keys";
-
- key-1 {
- linux,code = <KEY_1>;
- label = "SW3";
- wakeup-source;
- debounce-interval = <20>;
- gpios = <&gpio6 11 GPIO_ACTIVE_LOW>;
- };
- };
-
- x12_clk: x12 {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <24576000>;
- };
-
- reg_1p8v: regulator0 {
- compatible = "regulator-fixed";
- regulator-name = "fixed-1.8V";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- regulator-boot-on;
- regulator-always-on;
- };
-
- reg_3p3v: regulator1 {
- compatible = "regulator-fixed";
- regulator-name = "fixed-3.3V";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- regulator-boot-on;
- regulator-always-on;
- };
-
- vcc_sdhi0: regulator-vcc-sdhi0 {
- compatible = "regulator-fixed";
-
- regulator-name = "SDHI0 Vcc";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
-
- gpio = <&gpio5 2 GPIO_ACTIVE_HIGH>;
- enable-active-high;
- };
-
- vccq_sdhi0: regulator-vccq-sdhi0 {
- compatible = "regulator-gpio";
-
- regulator-name = "SDHI0 VccQ";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <3300000>;
-
- gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>;
- gpios-states = <1>;
- states = <3300000 1
- 1800000 0>;
- };
-
- audio_clkout: audio-clkout {
- /*
- * This is same as <&rcar_sound 0>
- * but needed to avoid cs2000/rcar_sound probe dead-lock
- */
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <11289600>;
- };
-
- rsnd_ak4613: sound {
- compatible = "simple-audio-card";
-
- simple-audio-card,format = "left_j";
- simple-audio-card,bitclock-master = <&sndcpu>;
- simple-audio-card,frame-master = <&sndcpu>;
-
- sndcpu: simple-audio-card,cpu {
- sound-dai = <&rcar_sound>;
- };
-
- sndcodec: simple-audio-card,codec {
- sound-dai = <&ak4613>;
- };
- };
-};
-
-&extal_clk {
- clock-frequency = <16666666>;
-};
-
-&extalr_clk {
- clock-frequency = <32768>;
-};
-
-&pfc {
- pinctrl-0 = <&scif_clk_pins>;
- pinctrl-names = "default";
-
- scif2_pins: scif2 {
- groups = "scif2_data_a";
- function = "scif2";
- };
-
- scif_clk_pins: scif_clk {
- groups = "scif_clk_a";
- function = "scif_clk";
- };
-
- i2c2_pins: i2c2 {
- groups = "i2c2_a";
- function = "i2c2";
- };
-
- avb_pins: avb {
- groups = "avb_mdc";
- function = "avb";
- };
-
- sdhi0_pins: sd0 {
- groups = "sdhi0_data4", "sdhi0_ctrl";
- function = "sdhi0";
- power-source = <3300>;
- };
-
- sdhi0_pins_uhs: sd0_uhs {
- groups = "sdhi0_data4", "sdhi0_ctrl";
- function = "sdhi0";
- power-source = <1800>;
- };
-
- sdhi2_pins: sd2 {
- groups = "sdhi2_data8", "sdhi2_ctrl";
- function = "sdhi2";
- power-source = <3300>;
- };
-
- sdhi2_pins_uhs: sd2_uhs {
- groups = "sdhi2_data8", "sdhi2_ctrl";
- function = "sdhi2";
- power-source = <1800>;
- };
-
- sound_pins: sound {
- groups = "ssi01239_ctrl", "ssi0_data", "ssi1_data_a";
- function = "ssi";
- };
-
- sound_clk_pins: sound-clk {
- groups = "audio_clk_a_a", "audio_clk_b_a", "audio_clk_c_a",
- "audio_clkout_a", "audio_clkout3_a";
- function = "audio_clk";
- };
-
- usb1_pins: usb1 {
- groups = "usb1";
- function = "usb1";
- };
-};
-
-&scif2 {
- pinctrl-0 = <&scif2_pins>;
- pinctrl-names = "default";
-
- status = "okay";
-};
-
-&scif_clk {
- clock-frequency = <14745600>;
-};
-
-&i2c2 {
- pinctrl-0 = <&i2c2_pins>;
- pinctrl-names = "default";
-
- status = "okay";
-
- clock-frequency = <100000>;
-
- ak4613: codec@10 {
- compatible = "asahi-kasei,ak4613";
- #sound-dai-cells = <0>;
- reg = <0x10>;
- clocks = <&rcar_sound 3>;
-
- asahi-kasei,in1-single-end;
- asahi-kasei,in2-single-end;
- asahi-kasei,out1-single-end;
- asahi-kasei,out2-single-end;
- asahi-kasei,out3-single-end;
- asahi-kasei,out4-single-end;
- asahi-kasei,out5-single-end;
- asahi-kasei,out6-single-end;
- };
-
- cs2000: clk-multiplier@4f {
- #clock-cells = <0>;
- compatible = "cirrus,cs2000-cp";
- reg = <0x4f>;
- clocks = <&audio_clkout>, <&x12_clk>;
- clock-names = "clk_in", "ref_clk";
-
- assigned-clocks = <&cs2000>;
- assigned-clock-rates = <24576000>; /* 1/1 divide */
- };
-};
-
-&rcar_sound {
- pinctrl-0 = <&sound_pins &sound_clk_pins>;
- pinctrl-names = "default";
-
- /* Single DAI */
- #sound-dai-cells = <0>;
-
- /* audio_clkout0/1/2/3 */
- #clock-cells = <1>;
- clock-frequency = <11289600>;
-
- status = "okay";
-
- /* update <audio_clk_b> to <cs2000> */
- clocks = <&cpg CPG_MOD 1005>,
- <&cpg CPG_MOD 1006>, <&cpg CPG_MOD 1007>,
- <&cpg CPG_MOD 1008>, <&cpg CPG_MOD 1009>,
- <&cpg CPG_MOD 1010>, <&cpg CPG_MOD 1011>,
- <&cpg CPG_MOD 1012>, <&cpg CPG_MOD 1013>,
- <&cpg CPG_MOD 1014>, <&cpg CPG_MOD 1015>,
- <&cpg CPG_MOD 1022>, <&cpg CPG_MOD 1023>,
- <&cpg CPG_MOD 1024>, <&cpg CPG_MOD 1025>,
- <&cpg CPG_MOD 1026>, <&cpg CPG_MOD 1027>,
- <&cpg CPG_MOD 1028>, <&cpg CPG_MOD 1029>,
- <&cpg CPG_MOD 1030>, <&cpg CPG_MOD 1031>,
- <&cpg CPG_MOD 1020>, <&cpg CPG_MOD 1021>,
- <&cpg CPG_MOD 1020>, <&cpg CPG_MOD 1021>,
- <&cpg CPG_MOD 1019>, <&cpg CPG_MOD 1018>,
- <&audio_clk_a>, <&cs2000>,
- <&audio_clk_c>,
- <&cpg CPG_CORE R8A7795_CLK_S0D4>;
-
- rcar_sound,dai {
- dai0 {
- playback = <&ssi0 &src0 &dvc0>;
- capture = <&ssi1 &src1 &dvc1>;
- };
- };
-};
-
-&sdhi0 {
- pinctrl-0 = <&sdhi0_pins>;
- pinctrl-1 = <&sdhi0_pins_uhs>;
- pinctrl-names = "default", "state_uhs";
-
- vmmc-supply = <&vcc_sdhi0>;
- vqmmc-supply = <&vccq_sdhi0>;
- cd-gpios = <&gpio3 12 GPIO_ACTIVE_LOW>;
- bus-width = <4>;
- sd-uhs-sdr50;
- status = "okay";
-};
-
-&sdhi2 {
- /* used for on-board 8bit eMMC */
- pinctrl-0 = <&sdhi2_pins>;
- pinctrl-1 = <&sdhi2_pins_uhs>;
- pinctrl-names = "default", "state_uhs";
-
- vmmc-supply = <&reg_3p3v>;
- vqmmc-supply = <&reg_1p8v>;
- bus-width = <8>;
- non-removable;
- status = "okay";
-};
-
-&ssi1 {
- shared-pin;
-};
-
-&wdt0 {
- timeout-sec = <60>;
- status = "okay";
-};
-
-&audio_clk_a {
- clock-frequency = <22579200>;
-};
-
-&avb {
- pinctrl-0 = <&avb_pins>;
- pinctrl-names = "default";
- renesas,no-ether-link;
- phy-handle = <&phy0>;
- status = "okay";
-
- phy0: ethernet-phy@0 {
- rxc-skew-ps = <1500>;
- reg = <0>;
- interrupt-parent = <&gpio2>;
- interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
- };
-};
-
-&usb2_phy1 {
- pinctrl-0 = <&usb1_pins>;
- pinctrl-names = "default";
-
- status = "okay";
-};
-
-&ehci1 {
- status = "okay";
};
-&ohci1 {
- status = "okay";
+&du {
+ clocks = <&cpg CPG_MOD 724>,
+ <&cpg CPG_MOD 723>,
+ <&cpg CPG_MOD 722>,
+ <&cpg CPG_MOD 721>,
+ <&cpg CPG_MOD 727>,
+ <&versaclock5 1>,
+ <&versaclock5 3>,
+ <&versaclock5 4>,
+ <&versaclock5 2>;
+ clock-names = "du.0", "du.1", "du.2", "du.3", "lvds.0",
+ "dclkin.0", "dclkin.1", "dclkin.2", "dclkin.3";
};
diff --git a/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts b/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
index 639aa085d996..17953070f38d 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
+++ b/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
@@ -8,577 +8,106 @@
* kind, whether express or implied.
*/
-/*
- * SSI-AK4613
- *
- * This command is required when Playback/Capture
- *
- * amixer set "DVC Out" 100%
- * amixer set "DVC In" 100%
- *
- * You can use Mute
- *
- * amixer set "DVC Out Mute" on
- * amixer set "DVC In Mute" on
- *
- * You can use Volume Ramp
- *
- * amixer set "DVC Out Ramp Up Rate" "0.125 dB/64 steps"
- * amixer set "DVC Out Ramp Down Rate" "0.125 dB/512 steps"
- * amixer set "DVC Out Ramp" on
- * aplay xxx.wav &
- * amixer set "DVC Out" 80% // Volume Down
- * amixer set "DVC Out" 100% // Volume Up
- */
-
/dts-v1/;
#include "r8a7795.dtsi"
-#include <dt-bindings/gpio/gpio.h>
+#include "salvator-x.dtsi"
/ {
- model = "Renesas Salvator-X board based on r8a7795";
+ model = "Renesas Salvator-X board based on r8a7795 ES2.0+";
compatible = "renesas,salvator-x", "renesas,r8a7795";
- aliases {
- serial0 = &scif2;
- serial1 = &scif1;
- ethernet0 = &avb;
- };
-
- chosen {
- bootargs = "ignore_loglevel rw root=/dev/nfs ip=dhcp";
- stdout-path = "serial0:115200n8";
- };
-
memory@48000000 {
device_type = "memory";
/* first 128MB is reserved for secure area. */
reg = <0x0 0x48000000 0x0 0x38000000>;
};
- x12_clk: x12 {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <24576000>;
- };
-
- reg_1p8v: regulator0 {
- compatible = "regulator-fixed";
- regulator-name = "fixed-1.8V";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- regulator-boot-on;
- regulator-always-on;
- };
-
- reg_3p3v: regulator1 {
- compatible = "regulator-fixed";
- regulator-name = "fixed-3.3V";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- regulator-boot-on;
- regulator-always-on;
- };
-
- vcc_sdhi0: regulator-vcc-sdhi0 {
- compatible = "regulator-fixed";
-
- regulator-name = "SDHI0 Vcc";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
-
- gpio = <&gpio5 2 GPIO_ACTIVE_HIGH>;
- enable-active-high;
- };
-
- vccq_sdhi0: regulator-vccq-sdhi0 {
- compatible = "regulator-gpio";
-
- regulator-name = "SDHI0 VccQ";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <3300000>;
-
- gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>;
- gpios-states = <1>;
- states = <3300000 1
- 1800000 0>;
- };
-
- vcc_sdhi3: regulator-vcc-sdhi3 {
- compatible = "regulator-fixed";
-
- regulator-name = "SDHI3 Vcc";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
-
- gpio = <&gpio3 15 GPIO_ACTIVE_HIGH>;
- enable-active-high;
- };
-
- vccq_sdhi3: regulator-vccq-sdhi3 {
- compatible = "regulator-gpio";
-
- regulator-name = "SDHI3 VccQ";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <3300000>;
-
- gpios = <&gpio3 14 GPIO_ACTIVE_HIGH>;
- gpios-states = <1>;
- states = <3300000 1
- 1800000 0>;
+ memory@500000000 {
+ device_type = "memory";
+ reg = <0x5 0x00000000 0x0 0x40000000>;
};
- vbus0_usb2: regulator-vbus0-usb2 {
- compatible = "regulator-fixed";
-
- regulator-name = "USB20_VBUS0";
- regulator-min-microvolt = <5000000>;
- regulator-max-microvolt = <5000000>;
-
- gpio = <&gpio6 16 GPIO_ACTIVE_HIGH>;
- enable-active-high;
+ memory@600000000 {
+ device_type = "memory";
+ reg = <0x6 0x00000000 0x0 0x40000000>;
};
- audio_clkout: audio_clkout {
- /*
- * This is same as <&rcar_sound 0>
- * but needed to avoid cs2000/rcar_sound probe dead-lock
- */
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <11289600>;
+ memory@700000000 {
+ device_type = "memory";
+ reg = <0x7 0x00000000 0x0 0x40000000>;
};
+};
- rsnd_ak4613: sound {
- compatible = "simple-audio-card";
-
- simple-audio-card,format = "left_j";
- simple-audio-card,bitclock-master = <&sndcpu>;
- simple-audio-card,frame-master = <&sndcpu>;
-
- sndcpu: simple-audio-card,cpu {
- sound-dai = <&rcar_sound>;
- };
-
- sndcodec: simple-audio-card,codec {
- sound-dai = <&ak4613>;
- };
- };
+&du {
+ clocks = <&cpg CPG_MOD 724>,
+ <&cpg CPG_MOD 723>,
+ <&cpg CPG_MOD 722>,
+ <&cpg CPG_MOD 721>,
+ <&cpg CPG_MOD 727>,
+ <&versaclock5 1>,
+ <&x21_clk>,
+ <&x22_clk>,
+ <&versaclock5 2>;
+ clock-names = "du.0", "du.1", "du.2", "du.3", "lvds.0",
+ "dclkin.0", "dclkin.1", "dclkin.2", "dclkin.3";
+};
- vga-encoder {
- compatible = "adi,adv7123";
+&ehci2 {
+ status = "okay";
+};
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
+&hdmi0 {
+ status = "okay";
- port@0 {
- reg = <0>;
- adv7123_in: endpoint {
- remote-endpoint = <&du_out_rgb>;
- };
- };
- port@1 {
- reg = <1>;
- adv7123_out: endpoint {
- remote-endpoint = <&vga_in>;
- };
+ ports {
+ port@1 {
+ reg = <1>;
+ rcar_dw_hdmi0_out: endpoint {
+ remote-endpoint = <&hdmi0_con>;
};
};
};
+};
- vga {
- compatible = "vga-connector";
-
- port {
- vga_in: endpoint {
- remote-endpoint = <&adv7123_out>;
- };
- };
- };
+&hdmi0_con {
+ remote-endpoint = <&rcar_dw_hdmi0_out>;
};
-&du {
- pinctrl-0 = <&du_pins>;
- pinctrl-names = "default";
+&hdmi1 {
status = "okay";
ports {
- port@0 {
- endpoint {
- remote-endpoint = <&adv7123_in>;
- };
- };
- port@3 {
- lvds_connector: endpoint {
+ port@1 {
+ reg = <1>;
+ rcar_dw_hdmi1_out: endpoint {
+ remote-endpoint = <&hdmi1_con>;
};
};
};
};
-&extal_clk {
- clock-frequency = <16666666>;
+&hdmi1_con {
+ remote-endpoint = <&rcar_dw_hdmi1_out>;
};
-&extalr_clk {
- clock-frequency = <32768>;
+&ohci2 {
+ status = "okay";
};
&pfc {
- pinctrl-0 = <&scif_clk_pins>;
- pinctrl-names = "default";
-
- scif1_pins: scif1 {
- groups = "scif1_data_a", "scif1_ctrl";
- function = "scif1";
- };
- scif2_pins: scif2 {
- groups = "scif2_data_a";
- function = "scif2";
- };
- scif_clk_pins: scif_clk {
- groups = "scif_clk_a";
- function = "scif_clk";
- };
-
- i2c2_pins: i2c2 {
- groups = "i2c2_a";
- function = "i2c2";
- };
-
- avb_pins: avb {
- mux {
- groups = "avb_link", "avb_phy_int", "avb_mdc",
- "avb_mii";
- function = "avb";
- };
-
- pins_mdc {
- groups = "avb_mdc";
- drive-strength = <24>;
- };
-
- pins_mii_tx {
- pins = "PIN_AVB_TX_CTL", "PIN_AVB_TXC", "PIN_AVB_TD0",
- "PIN_AVB_TD1", "PIN_AVB_TD2", "PIN_AVB_TD3";
- drive-strength = <12>;
- };
- };
-
- du_pins: du {
- groups = "du_rgb888", "du_sync", "du_oddf", "du_clk_out_0";
- function = "du";
- };
-
- sdhi0_pins: sd0 {
- groups = "sdhi0_data4", "sdhi0_ctrl";
- function = "sdhi0";
- power-source = <3300>;
- };
-
- sdhi0_pins_uhs: sd0_uhs {
- groups = "sdhi0_data4", "sdhi0_ctrl";
- function = "sdhi0";
- power-source = <1800>;
- };
-
- sdhi2_pins: sd2 {
- groups = "sdhi2_data8", "sdhi2_ctrl";
- function = "sdhi2";
- power-source = <3300>;
- };
-
- sdhi2_pins_uhs: sd2_uhs {
- groups = "sdhi2_data8", "sdhi2_ctrl";
- function = "sdhi2";
- power-source = <1800>;
- };
-
- sdhi3_pins: sd3 {
- groups = "sdhi3_data4", "sdhi3_ctrl";
- function = "sdhi3";
- power-source = <3300>;
- };
-
- sdhi3_pins_uhs: sd3_uhs {
- groups = "sdhi3_data4", "sdhi3_ctrl";
- function = "sdhi3";
- power-source = <1800>;
- };
-
- sound_pins: sound {
- groups = "ssi01239_ctrl", "ssi0_data", "ssi1_data_a";
- function = "ssi";
- };
-
- sound_clk_pins: sound_clk {
- groups = "audio_clk_a_a", "audio_clk_b_a", "audio_clk_c_a",
- "audio_clkout_a", "audio_clkout3_a";
- function = "audio_clk";
- };
-
- usb0_pins: usb0 {
- groups = "usb0";
- function = "usb0";
- };
-
- usb1_pins: usb1 {
- mux {
- groups = "usb1";
- function = "usb1";
- };
-
- ovc {
- pins = "GP_6_27";
- bias-pull-up;
- };
-
- pwen {
- pins = "GP_6_26";
- bias-pull-down;
- };
- };
-
usb2_pins: usb2 {
groups = "usb2";
function = "usb2";
};
};
-&scif1 {
- pinctrl-0 = <&scif1_pins>;
- pinctrl-names = "default";
-
- uart-has-rtscts;
- status = "okay";
-};
-
-&scif2 {
- pinctrl-0 = <&scif2_pins>;
- pinctrl-names = "default";
-
- status = "okay";
-};
-
-&scif_clk {
- clock-frequency = <14745600>;
-};
-
-&i2c2 {
- pinctrl-0 = <&i2c2_pins>;
- pinctrl-names = "default";
-
- status = "okay";
-
- clock-frequency = <100000>;
-
- ak4613: codec@10 {
- compatible = "asahi-kasei,ak4613";
- #sound-dai-cells = <0>;
- reg = <0x10>;
- clocks = <&rcar_sound 3>;
-
- asahi-kasei,in1-single-end;
- asahi-kasei,in2-single-end;
- asahi-kasei,out1-single-end;
- asahi-kasei,out2-single-end;
- asahi-kasei,out3-single-end;
- asahi-kasei,out4-single-end;
- asahi-kasei,out5-single-end;
- asahi-kasei,out6-single-end;
- };
-
- cs2000: clk_multiplier@4f {
- #clock-cells = <0>;
- compatible = "cirrus,cs2000-cp";
- reg = <0x4f>;
- clocks = <&audio_clkout>, <&x12_clk>;
- clock-names = "clk_in", "ref_clk";
-
- assigned-clocks = <&cs2000>;
- assigned-clock-rates = <24576000>; /* 1/1 divide */
- };
-};
-
-&rcar_sound {
- pinctrl-0 = <&sound_pins &sound_clk_pins>;
- pinctrl-names = "default";
-
- /* Single DAI */
- #sound-dai-cells = <0>;
-
- /* audio_clkout0/1/2/3 */
- #clock-cells = <1>;
- clock-frequency = <11289600>;
-
- status = "okay";
-
- /* update <audio_clk_b> to <cs2000> */
- clocks = <&cpg CPG_MOD 1005>,
- <&cpg CPG_MOD 1006>, <&cpg CPG_MOD 1007>,
- <&cpg CPG_MOD 1008>, <&cpg CPG_MOD 1009>,
- <&cpg CPG_MOD 1010>, <&cpg CPG_MOD 1011>,
- <&cpg CPG_MOD 1012>, <&cpg CPG_MOD 1013>,
- <&cpg CPG_MOD 1014>, <&cpg CPG_MOD 1015>,
- <&cpg CPG_MOD 1022>, <&cpg CPG_MOD 1023>,
- <&cpg CPG_MOD 1024>, <&cpg CPG_MOD 1025>,
- <&cpg CPG_MOD 1026>, <&cpg CPG_MOD 1027>,
- <&cpg CPG_MOD 1028>, <&cpg CPG_MOD 1029>,
- <&cpg CPG_MOD 1030>, <&cpg CPG_MOD 1031>,
- <&cpg CPG_MOD 1020>, <&cpg CPG_MOD 1021>,
- <&cpg CPG_MOD 1020>, <&cpg CPG_MOD 1021>,
- <&cpg CPG_MOD 1019>, <&cpg CPG_MOD 1018>,
- <&audio_clk_a>, <&cs2000>,
- <&audio_clk_c>,
- <&cpg CPG_CORE R8A7795_CLK_S0D4>;
-
- rcar_sound,dai {
- dai0 {
- playback = <&ssi0 &src0 &dvc0>;
- capture = <&ssi1 &src1 &dvc1>;
- };
- };
-};
-
&sata {
status = "okay";
};
-&sdhi0 {
- pinctrl-0 = <&sdhi0_pins>;
- pinctrl-1 = <&sdhi0_pins_uhs>;
- pinctrl-names = "default", "state_uhs";
-
- vmmc-supply = <&vcc_sdhi0>;
- vqmmc-supply = <&vccq_sdhi0>;
- cd-gpios = <&gpio3 12 GPIO_ACTIVE_LOW>;
- wp-gpios = <&gpio3 13 GPIO_ACTIVE_HIGH>;
- bus-width = <4>;
- sd-uhs-sdr50;
- status = "okay";
-};
-
-&sdhi2 {
- /* used for on-board 8bit eMMC */
- pinctrl-0 = <&sdhi2_pins>;
- pinctrl-1 = <&sdhi2_pins_uhs>;
- pinctrl-names = "default", "state_uhs";
-
- vmmc-supply = <&reg_3p3v>;
- vqmmc-supply = <&reg_1p8v>;
- bus-width = <8>;
- non-removable;
- status = "okay";
-};
-
-&sdhi3 {
- pinctrl-0 = <&sdhi3_pins>;
- pinctrl-1 = <&sdhi3_pins_uhs>;
- pinctrl-names = "default", "state_uhs";
-
- vmmc-supply = <&vcc_sdhi3>;
- vqmmc-supply = <&vccq_sdhi3>;
- cd-gpios = <&gpio4 15 GPIO_ACTIVE_LOW>;
- wp-gpios = <&gpio4 16 GPIO_ACTIVE_HIGH>;
- bus-width = <4>;
- sd-uhs-sdr50;
- status = "okay";
-};
-
-&ssi1 {
- shared-pin;
-};
-
-&wdt0 {
- timeout-sec = <60>;
- status = "okay";
-};
-
-&audio_clk_a {
- clock-frequency = <22579200>;
-};
-
-&i2c_dvfs {
- status = "okay";
-};
-
-&avb {
- pinctrl-0 = <&avb_pins>;
- pinctrl-names = "default";
- renesas,no-ether-link;
- phy-handle = <&phy0>;
- status = "okay";
-
- phy0: ethernet-phy@0 {
- rxc-skew-ps = <1500>;
- reg = <0>;
- interrupt-parent = <&gpio2>;
- interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
- };
-};
-
-&xhci0 {
- status = "okay";
-};
-
-&usb2_phy0 {
- pinctrl-0 = <&usb0_pins>;
- pinctrl-names = "default";
-
- vbus-supply = <&vbus0_usb2>;
- status = "okay";
-};
-
-&usb2_phy1 {
- pinctrl-0 = <&usb1_pins>;
- pinctrl-names = "default";
-
- status = "okay";
-};
-
&usb2_phy2 {
pinctrl-0 = <&usb2_pins>;
pinctrl-names = "default";
status = "okay";
};
-
-&ehci0 {
- status = "okay";
-};
-
-&ehci1 {
- status = "okay";
-};
-
-&ehci2 {
- status = "okay";
-};
-
-&ohci0 {
- status = "okay";
-};
-
-&ohci1 {
- status = "okay";
-};
-
-&ohci2 {
- status = "okay";
-};
-
-&hsusb {
- status = "okay";
-};
-
-&pcie_bus_clk {
- clock-frequency = <100000000>;
-};
-
-&pciec0 {
- status = "okay";
-};
-
-&pciec1 {
- status = "okay";
-};
diff --git a/arch/arm64/boot/dts/renesas/r8a7795-salvator-xs.dts b/arch/arm64/boot/dts/renesas/r8a7795-salvator-xs.dts
new file mode 100644
index 000000000000..7675de5d4f2c
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r8a7795-salvator-xs.dts
@@ -0,0 +1,109 @@
+/*
+ * Device Tree Source for the Salvator-X 2nd version board
+ *
+ * Copyright (C) 2015-2017 Renesas Electronics Corp.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/dts-v1/;
+#include "r8a7795.dtsi"
+#include "salvator-xs.dtsi"
+
+/ {
+ model = "Renesas Salvator-X 2nd version board based on r8a7795 ES2.0+";
+ compatible = "renesas,salvator-xs", "renesas,r8a7795";
+
+ memory@48000000 {
+ device_type = "memory";
+ /* first 128MB is reserved for secure area. */
+ reg = <0x0 0x48000000 0x0 0x38000000>;
+ };
+
+ memory@500000000 {
+ device_type = "memory";
+ reg = <0x5 0x00000000 0x0 0x40000000>;
+ };
+
+ memory@600000000 {
+ device_type = "memory";
+ reg = <0x6 0x00000000 0x0 0x40000000>;
+ };
+
+ memory@700000000 {
+ device_type = "memory";
+ reg = <0x7 0x00000000 0x0 0x40000000>;
+ };
+};
+
+&du {
+ clocks = <&cpg CPG_MOD 724>,
+ <&cpg CPG_MOD 723>,
+ <&cpg CPG_MOD 722>,
+ <&cpg CPG_MOD 721>,
+ <&cpg CPG_MOD 727>,
+ <&versaclock6 1>,
+ <&x21_clk>,
+ <&x22_clk>,
+ <&versaclock6 2>;
+ clock-names = "du.0", "du.1", "du.2", "du.3", "lvds.0",
+ "dclkin.0", "dclkin.1", "dclkin.2", "dclkin.3";
+};
+
+&ehci2 {
+ status = "okay";
+};
+
+&hdmi0 {
+ status = "okay";
+
+ ports {
+ port@1 {
+ reg = <1>;
+ rcar_dw_hdmi0_out: endpoint {
+ remote-endpoint = <&hdmi0_con>;
+ };
+ };
+ };
+};
+
+&hdmi0_con {
+ remote-endpoint = <&rcar_dw_hdmi0_out>;
+};
+
+&hdmi1 {
+ status = "okay";
+
+ ports {
+ port@1 {
+ reg = <1>;
+ rcar_dw_hdmi1_out: endpoint {
+ remote-endpoint = <&hdmi1_con>;
+ };
+ };
+ };
+};
+
+&hdmi1_con {
+ remote-endpoint = <&rcar_dw_hdmi1_out>;
+};
+
+&ohci2 {
+ status = "okay";
+};
+
+&pfc {
+ usb2_pins: usb2 {
+ groups = "usb2";
+ function = "usb2";
+ };
+};
+
+&usb2_phy2 {
+ pinctrl-0 = <&usb2_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
index e99d6443b3e4..2938195b9571 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
@@ -12,6 +12,8 @@
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/power/r8a7795-sysc.h>
+#define CPG_AUDIO_CLK_I R8A7795_CLK_S0D4
+
/ {
compatible = "renesas,r8a7795";
#address-cells = <2>;
@@ -182,7 +184,7 @@
clock-frequency = <0>;
};
- soc {
+ soc: soc {
compatible = "simple-bus";
interrupt-parent = <&gic>;
@@ -398,7 +400,7 @@
#power-domain-cells = <1>;
};
- pfc: pfc@e6060000 {
+ pfc: pin-controller@e6060000 {
compatible = "renesas,pfc-r8a7795";
reg = <0 0xe6060000 0 0x50c>;
};
@@ -691,6 +693,126 @@
};
};
+ drif00: rif@e6f40000 {
+ compatible = "renesas,r8a7795-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6f40000 0 0x64>;
+ interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 515>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x20>, <&dmac2 0x20>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 515>;
+ renesas,bonding = <&drif01>;
+ status = "disabled";
+ };
+
+ drif01: rif@e6f50000 {
+ compatible = "renesas,r8a7795-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6f50000 0 0x64>;
+ interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 514>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x22>, <&dmac2 0x22>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 514>;
+ renesas,bonding = <&drif00>;
+ status = "disabled";
+ };
+
+ drif10: rif@e6f60000 {
+ compatible = "renesas,r8a7795-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6f60000 0 0x64>;
+ interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 513>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x24>, <&dmac2 0x24>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 513>;
+ renesas,bonding = <&drif11>;
+ status = "disabled";
+ };
+
+ drif11: rif@e6f70000 {
+ compatible = "renesas,r8a7795-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6f70000 0 0x64>;
+ interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 512>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x26>, <&dmac2 0x26>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 512>;
+ renesas,bonding = <&drif10>;
+ status = "disabled";
+ };
+
+ drif20: rif@e6f80000 {
+ compatible = "renesas,r8a7795-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6f80000 0 0x64>;
+ interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 511>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x28>, <&dmac2 0x28>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 511>;
+ renesas,bonding = <&drif21>;
+ status = "disabled";
+ };
+
+ drif21: rif@e6f90000 {
+ compatible = "renesas,r8a7795-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6f90000 0 0x64>;
+ interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 510>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x2a>, <&dmac2 0x2a>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 510>;
+ renesas,bonding = <&drif20>;
+ status = "disabled";
+ };
+
+ drif30: rif@e6fa0000 {
+ compatible = "renesas,r8a7795-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6fa0000 0 0x64>;
+ interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 509>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x2c>, <&dmac2 0x2c>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 509>;
+ renesas,bonding = <&drif31>;
+ status = "disabled";
+ };
+
+ drif31: rif@e6fb0000 {
+ compatible = "renesas,r8a7795-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6fb0000 0 0x64>;
+ interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 508>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x2e>, <&dmac2 0x2e>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 508>;
+ renesas,bonding = <&drif30>;
+ status = "disabled";
+ };
+
hscif0: serial@e6540000 {
compatible = "renesas,hscif-r8a7795",
"renesas,rcar-gen3-hscif",
@@ -776,6 +898,68 @@
status = "disabled";
};
+ msiof0: spi@e6e90000 {
+ compatible = "renesas,msiof-r8a7795",
+ "renesas,rcar-gen3-msiof";
+ reg = <0 0xe6e90000 0 0x0064>;
+ interrupts = <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 211>;
+ dmas = <&dmac1 0x41>, <&dmac1 0x40>,
+ <&dmac2 0x41>, <&dmac2 0x40>;
+ dma-names = "tx", "rx", "tx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 211>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ msiof1: spi@e6ea0000 {
+ compatible = "renesas,msiof-r8a7795",
+ "renesas,rcar-gen3-msiof";
+ reg = <0 0xe6ea0000 0 0x0064>;
+ interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 210>;
+ dmas = <&dmac1 0x43>, <&dmac1 0x42>,
+ <&dmac2 0x43>, <&dmac2 0x42>;
+ dma-names = "tx", "rx", "tx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 210>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ msiof2: spi@e6c00000 {
+ compatible = "renesas,msiof-r8a7795",
+ "renesas,rcar-gen3-msiof";
+ reg = <0 0xe6c00000 0 0x0064>;
+ interrupts = <GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 209>;
+ dmas = <&dmac0 0x45>, <&dmac0 0x44>;
+ dma-names = "tx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 209>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ msiof3: spi@e6c10000 {
+ compatible = "renesas,msiof-r8a7795",
+ "renesas,rcar-gen3-msiof";
+ reg = <0 0xe6c10000 0 0x0064>;
+ interrupts = <GIC_SPI 159 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 208>;
+ dmas = <&dmac0 0x47>, <&dmac0 0x46>;
+ dma-names = "tx", "rx";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 208>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
scif0: serial@e6e60000 {
compatible = "renesas,scif-r8a7795",
"renesas,rcar-gen3-scif", "renesas,scif";
@@ -883,6 +1067,8 @@
clocks = <&cpg CPG_MOD 926>;
power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
resets = <&cpg 926>;
+ dmas = <&dmac0 0x11>, <&dmac0 0x10>;
+ dma-names = "tx", "rx";
status = "disabled";
};
@@ -1118,6 +1304,16 @@
"dvc.0", "dvc.1",
"clk_a", "clk_b", "clk_c", "clk_i";
power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 1005>,
+ <&cpg 1006>, <&cpg 1007>,
+ <&cpg 1008>, <&cpg 1009>,
+ <&cpg 1010>, <&cpg 1011>,
+ <&cpg 1012>, <&cpg 1013>,
+ <&cpg 1014>, <&cpg 1015>;
+ reset-names = "ssi-all",
+ "ssi.9", "ssi.8", "ssi.7", "ssi.6",
+ "ssi.5", "ssi.4", "ssi.3", "ssi.2",
+ "ssi.1", "ssi.0";
status = "disabled";
rcar_sound,dvc {
@@ -1255,7 +1451,8 @@
};
sata: sata@ee300000 {
- compatible = "renesas,sata-r8a7795";
+ compatible = "renesas,sata-r8a7795",
+ "renesas,rcar-gen3-sata";
reg = <0 0xee300000 0 0x200000>;
interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cpg CPG_MOD 815>;
@@ -1274,16 +1471,6 @@
status = "disabled";
};
- xhci1: usb@ee0400000 {
- compatible = "renesas,xhci-r8a7795", "renesas,rcar-gen3-xhci";
- reg = <0 0xee040000 0 0xc00>;
- interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cpg CPG_MOD 327>;
- power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
- resets = <&cpg 327>;
- status = "disabled";
- };
-
usb_dmac0: dma-controller@e65a0000 {
compatible = "renesas,r8a7795-usb-dmac",
"renesas,usb-dmac";
@@ -1312,6 +1499,34 @@
dma-channels = <2>;
};
+ usb_dmac2: dma-controller@e6460000 {
+ compatible = "renesas,r8a7795-usb-dmac",
+ "renesas,usb-dmac";
+ reg = <0 0xe6460000 0 0x100>;
+ interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "ch0", "ch1";
+ clocks = <&cpg CPG_MOD 326>;
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 326>;
+ #dma-cells = <1>;
+ dma-channels = <2>;
+ };
+
+ usb_dmac3: dma-controller@e6470000 {
+ compatible = "renesas,r8a7795-usb-dmac",
+ "renesas,usb-dmac";
+ reg = <0 0xe6470000 0 0x100>;
+ interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "ch0", "ch1";
+ clocks = <&cpg CPG_MOD 329>;
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 329>;
+ #dma-cells = <1>;
+ dma-channels = <2>;
+ };
+
sdhi0: sd@ee100000 {
compatible = "renesas,sdhi-r8a7795";
reg = <0 0xee100000 0 0x2000>;
@@ -1390,6 +1605,18 @@
status = "disabled";
};
+ usb2_phy3: usb-phy@ee0e0200 {
+ compatible = "renesas,usb2-phy-r8a7795",
+ "renesas,rcar-gen3-usb2-phy";
+ reg = <0 0xee0e0200 0 0x700>;
+ interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 700>;
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 700>;
+ #phy-cells = <0>;
+ status = "disabled";
+ };
+
ehci0: usb@ee080100 {
compatible = "generic-ehci";
reg = <0 0xee080100 0 0x100>;
@@ -1397,6 +1624,7 @@
clocks = <&cpg CPG_MOD 703>;
phys = <&usb2_phy0>;
phy-names = "usb";
+ companion = <&ohci0>;
power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
resets = <&cpg 703>;
status = "disabled";
@@ -1409,6 +1637,7 @@
clocks = <&cpg CPG_MOD 702>;
phys = <&usb2_phy1>;
phy-names = "usb";
+ companion = <&ohci1>;
power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
resets = <&cpg 702>;
status = "disabled";
@@ -1421,11 +1650,25 @@
clocks = <&cpg CPG_MOD 701>;
phys = <&usb2_phy2>;
phy-names = "usb";
+ companion = <&ohci2>;
power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
resets = <&cpg 701>;
status = "disabled";
};
+ ehci3: usb@ee0e0100 {
+ compatible = "generic-ehci";
+ reg = <0 0xee0e0100 0 0x100>;
+ interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 700>;
+ phys = <&usb2_phy3>;
+ phy-names = "usb";
+ companion = <&ohci3>;
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 700>;
+ status = "disabled";
+ };
+
ohci0: usb@ee080000 {
compatible = "generic-ohci";
reg = <0 0xee080000 0 0x100>;
@@ -1462,6 +1705,18 @@
status = "disabled";
};
+ ohci3: usb@ee0e0000 {
+ compatible = "generic-ohci";
+ reg = <0 0xee0e0000 0 0x100>;
+ interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 700>;
+ phys = <&usb2_phy3>;
+ phy-names = "usb";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 700>;
+ status = "disabled";
+ };
+
hsusb: usb@e6590000 {
compatible = "renesas,usbhs-r8a7795",
"renesas,rcar-gen3-usbhs";
@@ -1479,6 +1734,23 @@
status = "disabled";
};
+ hsusb3: usb@e659c000 {
+ compatible = "renesas,usbhs-r8a7795",
+ "renesas,rcar-gen3-usbhs";
+ reg = <0 0xe659c000 0 0x100>;
+ interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 705>;
+ dmas = <&usb_dmac2 0>, <&usb_dmac2 1>,
+ <&usb_dmac3 0>, <&usb_dmac3 1>;
+ dma-names = "ch0", "ch1", "ch2", "ch3";
+ renesas,buswait = <11>;
+ phys = <&usb2_phy3>;
+ phy-names = "usb";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 705>;
+ status = "disabled";
+ };
+
pciec0: pcie@fe000000 {
compatible = "renesas,pcie-r8a7795",
"renesas,pcie-rcar-gen3";
@@ -1533,6 +1805,46 @@
status = "disabled";
};
+ imr-lx4@fe860000 {
+ compatible = "renesas,r8a7795-imr-lx4",
+ "renesas,imr-lx4";
+ reg = <0 0xfe860000 0 0x2000>;
+ interrupts = <GIC_SPI 192 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 823>;
+ power-domains = <&sysc R8A7795_PD_A3VC>;
+ resets = <&cpg 823>;
+ };
+
+ imr-lx4@fe870000 {
+ compatible = "renesas,r8a7795-imr-lx4",
+ "renesas,imr-lx4";
+ reg = <0 0xfe870000 0 0x2000>;
+ interrupts = <GIC_SPI 193 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 822>;
+ power-domains = <&sysc R8A7795_PD_A3VC>;
+ resets = <&cpg 822>;
+ };
+
+ imr-lx4@fe880000 {
+ compatible = "renesas,r8a7795-imr-lx4",
+ "renesas,imr-lx4";
+ reg = <0 0xfe880000 0 0x2000>;
+ interrupts = <GIC_SPI 194 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 821>;
+ power-domains = <&sysc R8A7795_PD_A3VC>;
+ resets = <&cpg 821>;
+ };
+
+ imr-lx4@fe890000 {
+ compatible = "renesas,r8a7795-imr-lx4",
+ "renesas,imr-lx4";
+ reg = <0 0xfe890000 0 0x2000>;
+ interrupts = <GIC_SPI 195 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 820>;
+ power-domains = <&sysc R8A7795_PD_A3VC>;
+ resets = <&cpg 820>;
+ };
+
vspbc: vsp@fe920000 {
compatible = "renesas,vsp2";
reg = <0 0xfe920000 0 0x8000>;
@@ -1568,14 +1880,6 @@
resets = <&cpg 614>;
};
- fcpf2: fcp@fe952000 {
- compatible = "renesas,fcpf";
- reg = <0 0xfe952000 0 0x200>;
- clocks = <&cpg CPG_MOD 613>;
- power-domains = <&sysc R8A7795_PD_A3VP>;
- resets = <&cpg 613>;
- };
-
vspbd: vsp@fe960000 {
compatible = "renesas,vsp2";
reg = <0 0xfe960000 0 0x8000>;
@@ -1633,25 +1937,6 @@
resets = <&cpg 610>;
};
- vspi2: vsp@fe9c0000 {
- compatible = "renesas,vsp2";
- reg = <0 0xfe9c0000 0 0x8000>;
- interrupts = <GIC_SPI 446 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cpg CPG_MOD 629>;
- power-domains = <&sysc R8A7795_PD_A3VP>;
- resets = <&cpg 629>;
-
- renesas,fcp = <&fcpvi2>;
- };
-
- fcpvi2: fcp@fe9cf000 {
- compatible = "renesas,fcpv";
- reg = <0 0xfe9cf000 0 0x200>;
- clocks = <&cpg CPG_MOD 609>;
- power-domains = <&sysc R8A7795_PD_A3VP>;
- resets = <&cpg 609>;
- };
-
vspd0: vsp@fea20000 {
compatible = "renesas,vsp2";
reg = <0 0xfea20000 0 0x4000>;
@@ -1709,25 +1994,6 @@
resets = <&cpg 601>;
};
- vspd3: vsp@fea38000 {
- compatible = "renesas,vsp2";
- reg = <0 0xfea38000 0 0x4000>;
- interrupts = <GIC_SPI 469 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cpg CPG_MOD 620>;
- power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
- resets = <&cpg 620>;
-
- renesas,fcp = <&fcpvd3>;
- };
-
- fcpvd3: fcp@fea3f000 {
- compatible = "renesas,fcpv";
- reg = <0 0xfea3f000 0 0x200>;
- clocks = <&cpg CPG_MOD 600>;
- power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
- resets = <&cpg 600>;
- };
-
fdp1@fe940000 {
compatible = "renesas,fdp1";
reg = <0 0xfe940000 0 0x2400>;
@@ -1748,14 +2014,54 @@
renesas,fcp = <&fcpf1>;
};
- fdp1@fe948000 {
- compatible = "renesas,fdp1";
- reg = <0 0xfe948000 0 0x2400>;
- interrupts = <GIC_SPI 264 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cpg CPG_MOD 117>;
- power-domains = <&sysc R8A7795_PD_A3VP>;
- resets = <&cpg 117>;
- renesas,fcp = <&fcpf2>;
+ hdmi0: hdmi0@fead0000 {
+ compatible = "renesas,r8a7795-hdmi", "renesas,rcar-gen3-hdmi";
+ reg = <0 0xfead0000 0 0x10000>;
+ interrupts = <GIC_SPI 389 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 729>, <&cpg CPG_CORE R8A7795_CLK_HDMI>;
+ clock-names = "iahb", "isfr";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 729>;
+ status = "disabled";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ reg = <0>;
+ dw_hdmi0_in: endpoint {
+ remote-endpoint = <&du_out_hdmi0>;
+ };
+ };
+ port@1 {
+ reg = <1>;
+ };
+ };
+ };
+
+ hdmi1: hdmi1@feae0000 {
+ compatible = "renesas,r8a7795-hdmi", "renesas,rcar-gen3-hdmi";
+ reg = <0 0xfeae0000 0 0x10000>;
+ interrupts = <GIC_SPI 436 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 728>, <&cpg CPG_CORE R8A7795_CLK_HDMI>;
+ clock-names = "iahb", "isfr";
+ power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 728>;
+ status = "disabled";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ reg = <0>;
+ dw_hdmi1_in: endpoint {
+ remote-endpoint = <&du_out_hdmi1>;
+ };
+ };
+ port@1 {
+ reg = <1>;
+ };
+ };
};
du: display@feb00000 {
@@ -1773,10 +2079,9 @@
<&cpg CPG_MOD 721>,
<&cpg CPG_MOD 727>;
clock-names = "du.0", "du.1", "du.2", "du.3", "lvds.0";
+ vsps = <&vspd0 0 &vspd1 0 &vspd2 0 &vspd0 1>;
status = "disabled";
- vsps = <&vspd0 &vspd1 &vspd2 &vspd3>;
-
ports {
#address-cells = <1>;
#size-cells = <0>;
@@ -1789,11 +2094,13 @@
port@1 {
reg = <1>;
du_out_hdmi0: endpoint {
+ remote-endpoint = <&dw_hdmi0_in>;
};
};
port@2 {
reg = <2>;
du_out_hdmi1: endpoint {
+ remote-endpoint = <&dw_hdmi1_in>;
};
};
port@3 {
diff --git a/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb.dts b/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb.dts
index 372b2a944716..daee1f1a3f68 100644
--- a/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb.dts
+++ b/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb.dts
@@ -11,178 +11,32 @@
/dts-v1/;
#include "r8a7796.dtsi"
-#include <dt-bindings/gpio/gpio.h>
-#include <dt-bindings/input/input.h>
+#include "ulcb.dtsi"
/ {
model = "Renesas M3ULCB board based on r8a7796";
compatible = "renesas,m3ulcb", "renesas,r8a7796";
- aliases {
- serial0 = &scif2;
- };
-
- chosen {
- stdout-path = "serial0:115200n8";
- };
-
memory@48000000 {
device_type = "memory";
/* first 128MB is reserved for secure area. */
reg = <0x0 0x48000000 0x0 0x38000000>;
};
- leds {
- compatible = "gpio-leds";
-
- led5 {
- gpios = <&gpio6 12 GPIO_ACTIVE_HIGH>;
- };
- led6 {
- gpios = <&gpio6 13 GPIO_ACTIVE_HIGH>;
- };
- };
-
- keyboard {
- compatible = "gpio-keys";
-
- key-1 {
- linux,code = <KEY_1>;
- label = "SW3";
- wakeup-source;
- debounce-interval = <20>;
- gpios = <&gpio6 11 GPIO_ACTIVE_LOW>;
- };
- };
-
- reg_1p8v: regulator0 {
- compatible = "regulator-fixed";
- regulator-name = "fixed-1.8V";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- regulator-boot-on;
- regulator-always-on;
- };
-
- reg_3p3v: regulator1 {
- compatible = "regulator-fixed";
- regulator-name = "fixed-3.3V";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- regulator-boot-on;
- regulator-always-on;
- };
-
- vcc_sdhi0: regulator-vcc-sdhi0 {
- compatible = "regulator-fixed";
-
- regulator-name = "SDHI0 Vcc";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
-
- gpio = <&gpio5 2 GPIO_ACTIVE_HIGH>;
- enable-active-high;
- };
-
- vccq_sdhi0: regulator-vccq-sdhi0 {
- compatible = "regulator-gpio";
-
- regulator-name = "SDHI0 VccQ";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <3300000>;
-
- gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>;
- gpios-states = <1>;
- states = <3300000 1
- 1800000 0>;
- };
-};
-
-&extal_clk {
- clock-frequency = <16666666>;
-};
-
-&extalr_clk {
- clock-frequency = <32768>;
-};
-
-&pfc {
- pinctrl-0 = <&scif_clk_pins>;
- pinctrl-names = "default";
-
- scif2_pins: scif2 {
- groups = "scif2_data_a";
- function = "scif2";
- };
-
- scif_clk_pins: scif_clk {
- groups = "scif_clk_a";
- function = "scif_clk";
- };
-
- sdhi0_pins: sd0 {
- groups = "sdhi0_data4", "sdhi0_ctrl";
- function = "sdhi0";
- power-source = <3300>;
- };
-
- sdhi0_pins_uhs: sd0_uhs {
- groups = "sdhi0_data4", "sdhi0_ctrl";
- function = "sdhi0";
- power-source = <1800>;
- };
-
- sdhi2_pins: sd2 {
- groups = "sdhi2_data8", "sdhi2_ctrl";
- function = "sdhi2";
- power-source = <3300>;
- };
-
- sdhi2_pins_uhs: sd2_uhs {
- groups = "sdhi2_data8", "sdhi2_ctrl";
- function = "sdhi2";
- power-source = <1800>;
+ memory@600000000 {
+ device_type = "memory";
+ reg = <0x6 0x00000000 0x0 0x40000000>;
};
};
-&sdhi0 {
- pinctrl-0 = <&sdhi0_pins>;
- pinctrl-1 = <&sdhi0_pins_uhs>;
- pinctrl-names = "default", "state_uhs";
-
- vmmc-supply = <&vcc_sdhi0>;
- vqmmc-supply = <&vccq_sdhi0>;
- cd-gpios = <&gpio3 12 GPIO_ACTIVE_LOW>;
- bus-width = <4>;
- sd-uhs-sdr50;
- status = "okay";
-};
-
-&sdhi2 {
- /* used for on-board 8bit eMMC */
- pinctrl-0 = <&sdhi2_pins>;
- pinctrl-1 = <&sdhi2_pins_uhs>;
- pinctrl-names = "default", "state_uhs";
-
- vmmc-supply = <&reg_3p3v>;
- vqmmc-supply = <&reg_1p8v>;
- bus-width = <8>;
- non-removable;
- status = "okay";
-};
-
-&scif2 {
- pinctrl-0 = <&scif2_pins>;
- pinctrl-names = "default";
-
- status = "okay";
-};
-
-&scif_clk {
- clock-frequency = <14745600>;
-};
-
-&wdt0 {
- timeout-sec = <60>;
- status = "okay";
+&du {
+ clocks = <&cpg CPG_MOD 724>,
+ <&cpg CPG_MOD 723>,
+ <&cpg CPG_MOD 722>,
+ <&cpg CPG_MOD 727>,
+ <&versaclock5 1>,
+ <&versaclock5 3>,
+ <&versaclock5 2>;
+ clock-names = "du.0", "du.1", "du.2", "lvds.0",
+ "dclkin.0", "dclkin.1", "dclkin.2";
};
diff --git a/arch/arm64/boot/dts/renesas/r8a7796-salvator-x.dts b/arch/arm64/boot/dts/renesas/r8a7796-salvator-x.dts
index c9f59b6ce33f..b317be03306e 100644
--- a/arch/arm64/boot/dts/renesas/r8a7796-salvator-x.dts
+++ b/arch/arm64/boot/dts/renesas/r8a7796-salvator-x.dts
@@ -10,23 +10,12 @@
/dts-v1/;
#include "r8a7796.dtsi"
-#include <dt-bindings/gpio/gpio.h>
+#include "salvator-x.dtsi"
/ {
model = "Renesas Salvator-X board based on r8a7796";
compatible = "renesas,salvator-x", "renesas,r8a7796";
- aliases {
- serial0 = &scif2;
- serial1 = &scif1;
- ethernet0 = &avb;
- };
-
- chosen {
- bootargs = "ignore_loglevel";
- stdout-path = "serial0:115200n8";
- };
-
memory@48000000 {
device_type = "memory";
/* first 128MB is reserved for secure area. */
@@ -37,233 +26,33 @@
device_type = "memory";
reg = <0x6 0x00000000 0x0 0x80000000>;
};
-
- reg_1p8v: regulator0 {
- compatible = "regulator-fixed";
- regulator-name = "fixed-1.8V";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- regulator-boot-on;
- regulator-always-on;
- };
-
- reg_3p3v: regulator1 {
- compatible = "regulator-fixed";
- regulator-name = "fixed-3.3V";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- regulator-boot-on;
- regulator-always-on;
- };
-
- vcc_sdhi0: regulator-vcc-sdhi0 {
- compatible = "regulator-fixed";
-
- regulator-name = "SDHI0 Vcc";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
-
- gpio = <&gpio5 2 GPIO_ACTIVE_HIGH>;
- enable-active-high;
- };
-
- vccq_sdhi0: regulator-vccq-sdhi0 {
- compatible = "regulator-gpio";
-
- regulator-name = "SDHI0 VccQ";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <3300000>;
-
- gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>;
- gpios-states = <1>;
- states = <3300000 1
- 1800000 0>;
- };
-
- vcc_sdhi3: regulator-vcc-sdhi3 {
- compatible = "regulator-fixed";
-
- regulator-name = "SDHI3 Vcc";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
-
- gpio = <&gpio3 15 GPIO_ACTIVE_HIGH>;
- enable-active-high;
- };
-
- vccq_sdhi3: regulator-vccq-sdhi3 {
- compatible = "regulator-gpio";
-
- regulator-name = "SDHI3 VccQ";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <3300000>;
-
- gpios = <&gpio3 14 GPIO_ACTIVE_HIGH>;
- gpios-states = <1>;
- states = <3300000 1
- 1800000 0>;
- };
};
-&pfc {
- pinctrl-0 = <&scif_clk_pins>;
- pinctrl-names = "default";
-
- avb_pins: avb {
- groups = "avb_mdc";
- function = "avb";
- };
-
- scif1_pins: scif1 {
- groups = "scif1_data_a", "scif1_ctrl";
- function = "scif1";
- };
-
- scif2_pins: scif2 {
- groups = "scif2_data_a";
- function = "scif2";
- };
- scif_clk_pins: scif_clk {
- groups = "scif_clk_a";
- function = "scif_clk";
- };
-
- i2c2_pins: i2c2 {
- groups = "i2c2_a";
- function = "i2c2";
- };
-
- sdhi0_pins: sd0 {
- groups = "sdhi0_data4", "sdhi0_ctrl";
- function = "sdhi0";
- power-source = <3300>;
- };
-
- sdhi0_pins_uhs: sd0_uhs {
- groups = "sdhi0_data4", "sdhi0_ctrl";
- function = "sdhi0";
- power-source = <1800>;
- };
-
- sdhi2_pins: sd2 {
- groups = "sdhi2_data8", "sdhi2_ctrl";
- function = "sdhi2";
- power-source = <3300>;
- };
-
- sdhi2_pins_uhs: sd2_uhs {
- groups = "sdhi2_data8", "sdhi2_ctrl";
- function = "sdhi2";
- power-source = <1800>;
- };
-
- sdhi3_pins: sd3 {
- groups = "sdhi3_data4", "sdhi3_ctrl";
- function = "sdhi3";
- power-source = <3300>;
- };
-
- sdhi3_pins_uhs: sd3_uhs {
- groups = "sdhi3_data4", "sdhi3_ctrl";
- function = "sdhi3";
- power-source = <1800>;
- };
+&du {
+ clocks = <&cpg CPG_MOD 724>,
+ <&cpg CPG_MOD 723>,
+ <&cpg CPG_MOD 722>,
+ <&cpg CPG_MOD 727>,
+ <&versaclock5 1>,
+ <&x21_clk>,
+ <&versaclock5 2>;
+ clock-names = "du.0", "du.1", "du.2", "lvds.0",
+ "dclkin.0", "dclkin.1", "dclkin.2";
};
-&avb {
- pinctrl-0 = <&avb_pins>;
- pinctrl-names = "default";
- renesas,no-ether-link;
- phy-handle = <&phy0>;
+&hdmi0 {
status = "okay";
- phy0: ethernet-phy@0 {
- rxc-skew-ps = <1500>;
- reg = <0>;
- interrupt-parent = <&gpio2>;
- interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+ ports {
+ port@1 {
+ reg = <1>;
+ rcar_dw_hdmi0_out: endpoint {
+ remote-endpoint = <&hdmi0_con>;
+ };
+ };
};
};
-&extal_clk {
- clock-frequency = <16666666>;
-};
-
-&extalr_clk {
- clock-frequency = <32768>;
-};
-
-&sdhi0 {
- pinctrl-0 = <&sdhi0_pins>;
- pinctrl-1 = <&sdhi0_pins_uhs>;
- pinctrl-names = "default", "state_uhs";
-
- vmmc-supply = <&vcc_sdhi0>;
- vqmmc-supply = <&vccq_sdhi0>;
- cd-gpios = <&gpio3 12 GPIO_ACTIVE_LOW>;
- wp-gpios = <&gpio3 13 GPIO_ACTIVE_HIGH>;
- bus-width = <4>;
- sd-uhs-sdr50;
- status = "okay";
-};
-
-&sdhi2 {
- /* used for on-board 8bit eMMC */
- pinctrl-0 = <&sdhi2_pins>;
- pinctrl-1 = <&sdhi2_pins_uhs>;
- pinctrl-names = "default", "state_uhs";
-
- vmmc-supply = <&reg_3p3v>;
- vqmmc-supply = <&reg_1p8v>;
- bus-width = <8>;
- non-removable;
- status = "okay";
-};
-
-&sdhi3 {
- pinctrl-0 = <&sdhi3_pins>;
- pinctrl-1 = <&sdhi3_pins_uhs>;
- pinctrl-names = "default", "state_uhs";
-
- vmmc-supply = <&vcc_sdhi3>;
- vqmmc-supply = <&vccq_sdhi3>;
- cd-gpios = <&gpio4 15 GPIO_ACTIVE_LOW>;
- wp-gpios = <&gpio4 16 GPIO_ACTIVE_HIGH>;
- bus-width = <4>;
- sd-uhs-sdr50;
- status = "okay";
-};
-
-&scif1 {
- pinctrl-0 = <&scif1_pins>;
- pinctrl-names = "default";
-
- uart-has-rtscts;
- status = "okay";
-};
-
-&scif2 {
- pinctrl-0 = <&scif2_pins>;
- pinctrl-names = "default";
- status = "okay";
-};
-
-&scif_clk {
- clock-frequency = <14745600>;
-};
-
-&i2c2 {
- pinctrl-0 = <&i2c2_pins>;
- pinctrl-names = "default";
-
- status = "okay";
-};
-
-&wdt0 {
- timeout-sec = <60>;
- status = "okay";
-};
-
-&i2c_dvfs {
- status = "okay";
+&hdmi0_con {
+ remote-endpoint = <&rcar_dw_hdmi0_out>;
};
diff --git a/arch/arm64/boot/dts/renesas/r8a7796.dtsi b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
index 2ec1ed5f4991..369092e17e34 100644
--- a/arch/arm64/boot/dts/renesas/r8a7796.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
@@ -12,6 +12,8 @@
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/power/r8a7796-sysc.h>
+#define CPG_AUDIO_CLK_I R8A7796_CLK_S0D4
+
/ {
compatible = "renesas,r8a7796";
#address-cells = <2>;
@@ -120,6 +122,29 @@
clock-frequency = <0>;
};
+ /*
+ * The external audio clocks are configured as 0 Hz fixed frequency
+ * clocks by default.
+ * Boards that provide audio clocks should override them.
+ */
+ audio_clk_a: audio_clk_a {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <0>;
+ };
+
+ audio_clk_b: audio_clk_b {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <0>;
+ };
+
+ audio_clk_c: audio_clk_c {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <0>;
+ };
+
/* External CAN clock - to be overridden by boards that provide it */
can_clk: can {
compatible = "fixed-clock";
@@ -134,6 +159,13 @@
clock-frequency = <0>;
};
+ /* External PCIe clock - can be overridden by the board */
+ pcie_bus_clk: pcie_bus {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <0>;
+ };
+
soc {
compatible = "simple-bus";
interrupt-parent = <&gic>;
@@ -362,6 +394,78 @@
clocks = <&cpg CPG_MOD 926>;
power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
resets = <&cpg 926>;
+ dmas = <&dmac0 0x11>, <&dmac0 0x10>;
+ dma-names = "tx", "rx";
+ status = "disabled";
+ };
+
+ pwm0: pwm@e6e30000 {
+ compatible = "renesas,pwm-r8a7796", "renesas,pwm-rcar";
+ reg = <0 0xe6e30000 0 8>;
+ #pwm-cells = <2>;
+ clocks = <&cpg CPG_MOD 523>;
+ resets = <&cpg 523>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ status = "disabled";
+ };
+
+ pwm1: pwm@e6e31000 {
+ compatible = "renesas,pwm-r8a7796", "renesas,pwm-rcar";
+ reg = <0 0xe6e31000 0 8>;
+ #pwm-cells = <2>;
+ clocks = <&cpg CPG_MOD 523>;
+ resets = <&cpg 523>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ status = "disabled";
+ };
+
+ pwm2: pwm@e6e32000 {
+ compatible = "renesas,pwm-r8a7796", "renesas,pwm-rcar";
+ reg = <0 0xe6e32000 0 8>;
+ #pwm-cells = <2>;
+ clocks = <&cpg CPG_MOD 523>;
+ resets = <&cpg 523>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ status = "disabled";
+ };
+
+ pwm3: pwm@e6e33000 {
+ compatible = "renesas,pwm-r8a7796", "renesas,pwm-rcar";
+ reg = <0 0xe6e33000 0 8>;
+ #pwm-cells = <2>;
+ clocks = <&cpg CPG_MOD 523>;
+ resets = <&cpg 523>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ status = "disabled";
+ };
+
+ pwm4: pwm@e6e34000 {
+ compatible = "renesas,pwm-r8a7796", "renesas,pwm-rcar";
+ reg = <0 0xe6e34000 0 8>;
+ #pwm-cells = <2>;
+ clocks = <&cpg CPG_MOD 523>;
+ resets = <&cpg 523>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ status = "disabled";
+ };
+
+ pwm5: pwm@e6e35000 {
+ compatible = "renesas,pwm-r8a7796", "renesas,pwm-rcar";
+ reg = <0 0xe6e35000 0 8>;
+ #pwm-cells = <2>;
+ clocks = <&cpg CPG_MOD 523>;
+ resets = <&cpg 523>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ status = "disabled";
+ };
+
+ pwm6: pwm@e6e36000 {
+ compatible = "renesas,pwm-r8a7796", "renesas,pwm-rcar";
+ reg = <0 0xe6e36000 0 8>;
+ #pwm-cells = <2>;
+ clocks = <&cpg CPG_MOD 523>;
+ resets = <&cpg 523>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
status = "disabled";
};
@@ -537,6 +641,126 @@
};
};
+ drif00: rif@e6f40000 {
+ compatible = "renesas,r8a7796-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6f40000 0 0x64>;
+ interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 515>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x20>, <&dmac2 0x20>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 515>;
+ renesas,bonding = <&drif01>;
+ status = "disabled";
+ };
+
+ drif01: rif@e6f50000 {
+ compatible = "renesas,r8a7796-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6f50000 0 0x64>;
+ interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 514>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x22>, <&dmac2 0x22>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 514>;
+ renesas,bonding = <&drif00>;
+ status = "disabled";
+ };
+
+ drif10: rif@e6f60000 {
+ compatible = "renesas,r8a7796-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6f60000 0 0x64>;
+ interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 513>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x24>, <&dmac2 0x24>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 513>;
+ renesas,bonding = <&drif11>;
+ status = "disabled";
+ };
+
+ drif11: rif@e6f70000 {
+ compatible = "renesas,r8a7796-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6f70000 0 0x64>;
+ interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 512>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x26>, <&dmac2 0x26>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 512>;
+ renesas,bonding = <&drif10>;
+ status = "disabled";
+ };
+
+ drif20: rif@e6f80000 {
+ compatible = "renesas,r8a7796-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6f80000 0 0x64>;
+ interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 511>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x28>, <&dmac2 0x28>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 511>;
+ renesas,bonding = <&drif21>;
+ status = "disabled";
+ };
+
+ drif21: rif@e6f90000 {
+ compatible = "renesas,r8a7796-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6f90000 0 0x64>;
+ interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 510>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x2a>, <&dmac2 0x2a>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 510>;
+ renesas,bonding = <&drif20>;
+ status = "disabled";
+ };
+
+ drif30: rif@e6fa0000 {
+ compatible = "renesas,r8a7796-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6fa0000 0 0x64>;
+ interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 509>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x2c>, <&dmac2 0x2c>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 509>;
+ renesas,bonding = <&drif31>;
+ status = "disabled";
+ };
+
+ drif31: rif@e6fb0000 {
+ compatible = "renesas,r8a7796-drif",
+ "renesas,rcar-gen3-drif";
+ reg = <0 0xe6fb0000 0 0x64>;
+ interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 508>;
+ clock-names = "fck";
+ dmas = <&dmac1 0x2e>, <&dmac2 0x2e>;
+ dma-names = "rx", "rx";
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 508>;
+ renesas,bonding = <&drif30>;
+ status = "disabled";
+ };
+
avb: ethernet@e6800000 {
compatible = "renesas,etheravb-r8a7796",
"renesas,etheravb-rcar-gen3";
@@ -775,7 +999,7 @@
clocks = <&cpg CPG_MOD 211>;
dmas = <&dmac1 0x41>, <&dmac1 0x40>,
<&dmac2 0x41>, <&dmac2 0x40>;
- dma-names = "tx", "rx";
+ dma-names = "tx", "rx", "tx", "rx";
power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
resets = <&cpg 211>;
#address-cells = <1>;
@@ -791,7 +1015,7 @@
clocks = <&cpg CPG_MOD 210>;
dmas = <&dmac1 0x43>, <&dmac1 0x42>,
<&dmac2 0x43>, <&dmac2 0x42>;
- dma-names = "tx", "rx";
+ dma-names = "tx", "rx", "tx", "rx";
power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
resets = <&cpg 210>;
#address-cells = <1>;
@@ -931,6 +1155,203 @@
dma-channels = <16>;
};
+ audma0: dma-controller@ec700000 {
+ compatible = "renesas,dmac-r8a7796",
+ "renesas,rcar-dmac";
+ reg = <0 0xec700000 0 0x10000>;
+ interrupts = <GIC_SPI 350 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 320 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 321 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 322 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 323 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 324 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 325 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 326 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 327 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 328 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 329 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 330 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 331 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 332 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 333 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 334 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 335 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "error",
+ "ch0", "ch1", "ch2", "ch3",
+ "ch4", "ch5", "ch6", "ch7",
+ "ch8", "ch9", "ch10", "ch11",
+ "ch12", "ch13", "ch14", "ch15";
+ clocks = <&cpg CPG_MOD 502>;
+ clock-names = "fck";
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 502>;
+ #dma-cells = <1>;
+ dma-channels = <16>;
+ };
+
+ audma1: dma-controller@ec720000 {
+ compatible = "renesas,dmac-r8a7796",
+ "renesas,rcar-dmac";
+ reg = <0 0xec720000 0 0x10000>;
+ interrupts = <GIC_SPI 351 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 336 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 337 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 338 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 339 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 340 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 341 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 342 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 343 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 344 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 345 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 346 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 347 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 348 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 349 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 382 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 383 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "error",
+ "ch0", "ch1", "ch2", "ch3",
+ "ch4", "ch5", "ch6", "ch7",
+ "ch8", "ch9", "ch10", "ch11",
+ "ch12", "ch13", "ch14", "ch15";
+ clocks = <&cpg CPG_MOD 501>;
+ clock-names = "fck";
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 501>;
+ #dma-cells = <1>;
+ dma-channels = <16>;
+ };
+
+ usb_dmac0: dma-controller@e65a0000 {
+ compatible = "renesas,r8a7796-usb-dmac",
+ "renesas,usb-dmac";
+ reg = <0 0xe65a0000 0 0x100>;
+ interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "ch0", "ch1";
+ clocks = <&cpg CPG_MOD 330>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 330>;
+ #dma-cells = <1>;
+ dma-channels = <2>;
+ };
+
+ usb_dmac1: dma-controller@e65b0000 {
+ compatible = "renesas,r8a7796-usb-dmac",
+ "renesas,usb-dmac";
+ reg = <0 0xe65b0000 0 0x100>;
+ interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH
+ GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "ch0", "ch1";
+ clocks = <&cpg CPG_MOD 331>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 331>;
+ #dma-cells = <1>;
+ dma-channels = <2>;
+ };
+
+ hsusb: usb@e6590000 {
+ compatible = "renesas,usbhs-r8a7796",
+ "renesas,rcar-gen3-usbhs";
+ reg = <0 0xe6590000 0 0x100>;
+ interrupts = <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 704>;
+ dmas = <&usb_dmac0 0>, <&usb_dmac0 1>,
+ <&usb_dmac1 0>, <&usb_dmac1 1>;
+ dma-names = "ch0", "ch1", "ch2", "ch3";
+ renesas,buswait = <11>;
+ phys = <&usb2_phy0>;
+ phy-names = "usb";
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 704>;
+ status = "disabled";
+ };
+
+ xhci0: usb@ee000000 {
+ compatible = "renesas,xhci-r8a7796",
+ "renesas,rcar-gen3-xhci";
+ reg = <0 0xee000000 0 0xc00>;
+ interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 328>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 328>;
+ status = "disabled";
+ };
+
+ ohci0: usb@ee080000 {
+ compatible = "generic-ohci";
+ reg = <0 0xee080000 0 0x100>;
+ interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 703>;
+ phys = <&usb2_phy0>;
+ phy-names = "usb";
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 703>;
+ status = "disabled";
+ };
+
+ ehci0: usb@ee080100 {
+ compatible = "generic-ehci";
+ reg = <0 0xee080100 0 0x100>;
+ interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 703>;
+ phys = <&usb2_phy0>;
+ phy-names = "usb";
+ companion= <&ohci0>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 703>;
+ status = "disabled";
+ };
+
+ usb2_phy0: usb-phy@ee080200 {
+ compatible = "renesas,usb2-phy-r8a7796",
+ "renesas,rcar-gen3-usb2-phy";
+ reg = <0 0xee080200 0 0x700>;
+ interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 703>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 703>;
+ #phy-cells = <0>;
+ status = "disabled";
+ };
+
+ ohci1: usb@ee0a0000 {
+ compatible = "generic-ohci";
+ reg = <0 0xee0a0000 0 0x100>;
+ interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 702>;
+ phys = <&usb2_phy1>;
+ phy-names = "usb";
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 702>;
+ status = "disabled";
+ };
+
+ ehci1: usb@ee0a0100 {
+ compatible = "generic-ehci";
+ reg = <0 0xee0a0100 0 0x100>;
+ interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 702>;
+ phys = <&usb2_phy1>;
+ phy-names = "usb";
+ companion= <&ohci1>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 702>;
+ status = "disabled";
+ };
+
+ usb2_phy1: usb-phy@ee0a0200 {
+ compatible = "renesas,usb2-phy-r8a7796",
+ "renesas,rcar-gen3-usb2-phy";
+ reg = <0 0xee0a0200 0 0x700>;
+ clocks = <&cpg CPG_MOD 702>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 702>;
+ #phy-cells = <0>;
+ status = "disabled";
+ };
+
sdhi0: sd@ee100000 {
compatible = "renesas,sdhi-r8a7796";
reg = <0 0xee100000 0 0x2000>;
@@ -1033,5 +1454,397 @@
};
};
};
+
+ rcar_sound: sound@ec500000 {
+ /*
+ * #sound-dai-cells is required
+ *
+ * Single DAI : #sound-dai-cells = <0>; <&rcar_sound>;
+ * Multi DAI : #sound-dai-cells = <1>; <&rcar_sound N>;
+ */
+ /*
+ * #clock-cells is required for audio_clkout0/1/2/3
+ *
+ * clkout : #clock-cells = <0>; <&rcar_sound>;
+ * clkout0/1/2/3: #clock-cells = <1>; <&rcar_sound N>;
+ */
+ compatible = "renesas,rcar_sound-r8a7796", "renesas,rcar_sound-gen3";
+ reg = <0 0xec500000 0 0x1000>, /* SCU */
+ <0 0xec5a0000 0 0x100>, /* ADG */
+ <0 0xec540000 0 0x1000>, /* SSIU */
+ <0 0xec541000 0 0x280>, /* SSI */
+ <0 0xec740000 0 0x200>; /* Audio DMAC peri peri*/
+ reg-names = "scu", "adg", "ssiu", "ssi", "audmapp";
+
+ clocks = <&cpg CPG_MOD 1005>,
+ <&cpg CPG_MOD 1006>, <&cpg CPG_MOD 1007>,
+ <&cpg CPG_MOD 1008>, <&cpg CPG_MOD 1009>,
+ <&cpg CPG_MOD 1010>, <&cpg CPG_MOD 1011>,
+ <&cpg CPG_MOD 1012>, <&cpg CPG_MOD 1013>,
+ <&cpg CPG_MOD 1014>, <&cpg CPG_MOD 1015>,
+ <&cpg CPG_MOD 1022>, <&cpg CPG_MOD 1023>,
+ <&cpg CPG_MOD 1024>, <&cpg CPG_MOD 1025>,
+ <&cpg CPG_MOD 1026>, <&cpg CPG_MOD 1027>,
+ <&cpg CPG_MOD 1028>, <&cpg CPG_MOD 1029>,
+ <&cpg CPG_MOD 1030>, <&cpg CPG_MOD 1031>,
+ <&cpg CPG_MOD 1020>, <&cpg CPG_MOD 1021>,
+ <&cpg CPG_MOD 1020>, <&cpg CPG_MOD 1021>,
+ <&cpg CPG_MOD 1019>, <&cpg CPG_MOD 1018>,
+ <&audio_clk_a>, <&audio_clk_b>,
+ <&audio_clk_c>,
+ <&cpg CPG_CORE R8A7796_CLK_S0D4>;
+ clock-names = "ssi-all",
+ "ssi.9", "ssi.8", "ssi.7", "ssi.6",
+ "ssi.5", "ssi.4", "ssi.3", "ssi.2",
+ "ssi.1", "ssi.0",
+ "src.9", "src.8", "src.7", "src.6",
+ "src.5", "src.4", "src.3", "src.2",
+ "src.1", "src.0",
+ "mix.1", "mix.0",
+ "ctu.1", "ctu.0",
+ "dvc.0", "dvc.1",
+ "clk_a", "clk_b", "clk_c", "clk_i";
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 1005>,
+ <&cpg 1006>, <&cpg 1007>,
+ <&cpg 1008>, <&cpg 1009>,
+ <&cpg 1010>, <&cpg 1011>,
+ <&cpg 1012>, <&cpg 1013>,
+ <&cpg 1014>, <&cpg 1015>;
+ reset-names = "ssi-all",
+ "ssi.9", "ssi.8", "ssi.7", "ssi.6",
+ "ssi.5", "ssi.4", "ssi.3", "ssi.2",
+ "ssi.1", "ssi.0";
+ status = "disabled";
+
+ rcar_sound,dvc {
+ dvc0: dvc-0 {
+ dmas = <&audma1 0xbc>;
+ dma-names = "tx";
+ };
+ dvc1: dvc-1 {
+ dmas = <&audma1 0xbe>;
+ dma-names = "tx";
+ };
+ };
+
+ rcar_sound,mix {
+ mix0: mix-0 { };
+ mix1: mix-1 { };
+ };
+
+ rcar_sound,ctu {
+ ctu00: ctu-0 { };
+ ctu01: ctu-1 { };
+ ctu02: ctu-2 { };
+ ctu03: ctu-3 { };
+ ctu10: ctu-4 { };
+ ctu11: ctu-5 { };
+ ctu12: ctu-6 { };
+ ctu13: ctu-7 { };
+ };
+
+ rcar_sound,src {
+ src0: src-0 {
+ interrupts = <GIC_SPI 352 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x85>, <&audma1 0x9a>;
+ dma-names = "rx", "tx";
+ };
+ src1: src-1 {
+ interrupts = <GIC_SPI 353 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x87>, <&audma1 0x9c>;
+ dma-names = "rx", "tx";
+ };
+ src2: src-2 {
+ interrupts = <GIC_SPI 354 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x89>, <&audma1 0x9e>;
+ dma-names = "rx", "tx";
+ };
+ src3: src-3 {
+ interrupts = <GIC_SPI 355 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x8b>, <&audma1 0xa0>;
+ dma-names = "rx", "tx";
+ };
+ src4: src-4 {
+ interrupts = <GIC_SPI 356 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x8d>, <&audma1 0xb0>;
+ dma-names = "rx", "tx";
+ };
+ src5: src-5 {
+ interrupts = <GIC_SPI 357 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x8f>, <&audma1 0xb2>;
+ dma-names = "rx", "tx";
+ };
+ src6: src-6 {
+ interrupts = <GIC_SPI 358 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x91>, <&audma1 0xb4>;
+ dma-names = "rx", "tx";
+ };
+ src7: src-7 {
+ interrupts = <GIC_SPI 359 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x93>, <&audma1 0xb6>;
+ dma-names = "rx", "tx";
+ };
+ src8: src-8 {
+ interrupts = <GIC_SPI 360 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x95>, <&audma1 0xb8>;
+ dma-names = "rx", "tx";
+ };
+ src9: src-9 {
+ interrupts = <GIC_SPI 361 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x97>, <&audma1 0xba>;
+ dma-names = "rx", "tx";
+ };
+ };
+
+ rcar_sound,ssi {
+ ssi0: ssi-0 {
+ interrupts = <GIC_SPI 370 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x01>, <&audma1 0x02>, <&audma0 0x15>, <&audma1 0x16>;
+ dma-names = "rx", "tx", "rxu", "txu";
+ };
+ ssi1: ssi-1 {
+ interrupts = <GIC_SPI 371 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x03>, <&audma1 0x04>, <&audma0 0x49>, <&audma1 0x4a>;
+ dma-names = "rx", "tx", "rxu", "txu";
+ };
+ ssi2: ssi-2 {
+ interrupts = <GIC_SPI 372 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x05>, <&audma1 0x06>, <&audma0 0x63>, <&audma1 0x64>;
+ dma-names = "rx", "tx", "rxu", "txu";
+ };
+ ssi3: ssi-3 {
+ interrupts = <GIC_SPI 373 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x07>, <&audma1 0x08>, <&audma0 0x6f>, <&audma1 0x70>;
+ dma-names = "rx", "tx", "rxu", "txu";
+ };
+ ssi4: ssi-4 {
+ interrupts = <GIC_SPI 374 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x09>, <&audma1 0x0a>, <&audma0 0x71>, <&audma1 0x72>;
+ dma-names = "rx", "tx", "rxu", "txu";
+ };
+ ssi5: ssi-5 {
+ interrupts = <GIC_SPI 375 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x0b>, <&audma1 0x0c>, <&audma0 0x73>, <&audma1 0x74>;
+ dma-names = "rx", "tx", "rxu", "txu";
+ };
+ ssi6: ssi-6 {
+ interrupts = <GIC_SPI 376 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x0d>, <&audma1 0x0e>, <&audma0 0x75>, <&audma1 0x76>;
+ dma-names = "rx", "tx", "rxu", "txu";
+ };
+ ssi7: ssi-7 {
+ interrupts = <GIC_SPI 377 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x0f>, <&audma1 0x10>, <&audma0 0x79>, <&audma1 0x7a>;
+ dma-names = "rx", "tx", "rxu", "txu";
+ };
+ ssi8: ssi-8 {
+ interrupts = <GIC_SPI 378 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x11>, <&audma1 0x12>, <&audma0 0x7b>, <&audma1 0x7c>;
+ dma-names = "rx", "tx", "rxu", "txu";
+ };
+ ssi9: ssi-9 {
+ interrupts = <GIC_SPI 379 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&audma0 0x13>, <&audma1 0x14>, <&audma0 0x7d>, <&audma1 0x7e>;
+ dma-names = "rx", "tx", "rxu", "txu";
+ };
+ };
+ };
+
+ pciec0: pcie@fe000000 {
+ /* placeholder */
+ };
+
+ pciec1: pcie@ee800000 {
+ /* placeholder */
+ };
+
+ fcpf0: fcp@fe950000 {
+ compatible = "renesas,fcpf";
+ reg = <0 0xfe950000 0 0x200>;
+ clocks = <&cpg CPG_MOD 615>;
+ power-domains = <&sysc R8A7796_PD_A3VC>;
+ resets = <&cpg 615>;
+ };
+
+ vspb: vsp@fe960000 {
+ compatible = "renesas,vsp2";
+ reg = <0 0xfe960000 0 0x8000>;
+ interrupts = <GIC_SPI 266 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 626>;
+ power-domains = <&sysc R8A7796_PD_A3VC>;
+ resets = <&cpg 626>;
+
+ renesas,fcp = <&fcpvb0>;
+ };
+
+ fcpvb0: fcp@fe96f000 {
+ compatible = "renesas,fcpv";
+ reg = <0 0xfe96f000 0 0x200>;
+ clocks = <&cpg CPG_MOD 607>;
+ power-domains = <&sysc R8A7796_PD_A3VC>;
+ resets = <&cpg 607>;
+ };
+
+ vspi0: vsp@fe9a0000 {
+ compatible = "renesas,vsp2";
+ reg = <0 0xfe9a0000 0 0x8000>;
+ interrupts = <GIC_SPI 444 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 631>;
+ power-domains = <&sysc R8A7796_PD_A3VC>;
+ resets = <&cpg 631>;
+
+ renesas,fcp = <&fcpvi0>;
+ };
+
+ fcpvi0: fcp@fe9af000 {
+ compatible = "renesas,fcpv";
+ reg = <0 0xfe9af000 0 0x200>;
+ clocks = <&cpg CPG_MOD 611>;
+ power-domains = <&sysc R8A7796_PD_A3VC>;
+ resets = <&cpg 611>;
+ };
+
+ vspd0: vsp@fea20000 {
+ compatible = "renesas,vsp2";
+ reg = <0 0xfea20000 0 0x4000>;
+ interrupts = <GIC_SPI 466 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 623>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 623>;
+
+ renesas,fcp = <&fcpvd0>;
+ };
+
+ fcpvd0: fcp@fea27000 {
+ compatible = "renesas,fcpv";
+ reg = <0 0xfea27000 0 0x200>;
+ clocks = <&cpg CPG_MOD 603>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 603>;
+ };
+
+ vspd1: vsp@fea28000 {
+ compatible = "renesas,vsp2";
+ reg = <0 0xfea28000 0 0x4000>;
+ interrupts = <GIC_SPI 467 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 622>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 622>;
+
+ renesas,fcp = <&fcpvd1>;
+ };
+
+ fcpvd1: fcp@fea2f000 {
+ compatible = "renesas,fcpv";
+ reg = <0 0xfea2f000 0 0x200>;
+ clocks = <&cpg CPG_MOD 602>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 602>;
+ };
+
+ vspd2: vsp@fea30000 {
+ compatible = "renesas,vsp2";
+ reg = <0 0xfea30000 0 0x4000>;
+ interrupts = <GIC_SPI 468 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 621>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 621>;
+
+ renesas,fcp = <&fcpvd2>;
+ };
+
+ fcpvd2: fcp@fea37000 {
+ compatible = "renesas,fcpv";
+ reg = <0 0xfea37000 0 0x200>;
+ clocks = <&cpg CPG_MOD 601>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 601>;
+ };
+
+ hdmi0: hdmi@fead0000 {
+ compatible = "renesas,r8a7796-hdmi", "renesas,rcar-gen3-hdmi";
+ reg = <0 0xfead0000 0 0x10000>;
+ interrupts = <GIC_SPI 389 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 729>, <&cpg CPG_CORE R8A7796_CLK_HDMI>;
+ clock-names = "iahb", "isfr";
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 729>;
+ status = "disabled";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ reg = <0>;
+ dw_hdmi0_in: endpoint {
+ remote-endpoint = <&du_out_hdmi0>;
+ };
+ };
+ port@1 {
+ reg = <1>;
+ };
+ };
+ };
+
+ du: display@feb00000 {
+ compatible = "renesas,du-r8a7796";
+ reg = <0 0xfeb00000 0 0x70000>,
+ <0 0xfeb90000 0 0x14>;
+ reg-names = "du", "lvds.0";
+ interrupts = <GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 268 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 269 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 724>,
+ <&cpg CPG_MOD 723>,
+ <&cpg CPG_MOD 722>,
+ <&cpg CPG_MOD 727>;
+ clock-names = "du.0", "du.1", "du.2", "lvds.0";
+ status = "disabled";
+
+ vsps = <&vspd0 &vspd1 &vspd2>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ du_out_rgb: endpoint {
+ };
+ };
+ port@1 {
+ reg = <1>;
+ du_out_hdmi0: endpoint {
+ remote-endpoint = <&dw_hdmi0_in>;
+ };
+ };
+ port@2 {
+ reg = <2>;
+ du_out_lvds0: endpoint {
+ };
+ };
+ };
+ };
+
+ imr-lx4@fe860000 {
+ compatible = "renesas,r8a7796-imr-lx4",
+ "renesas,imr-lx4";
+ reg = <0 0xfe860000 0 0x2000>;
+ interrupts = <GIC_SPI 192 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 823>;
+ power-domains = <&sysc R8A7796_PD_A3VC>;
+ resets = <&cpg 823>;
+ };
+
+ imr-lx4@fe870000 {
+ compatible = "renesas,r8a7796-imr-lx4",
+ "renesas,imr-lx4";
+ reg = <0 0xfe870000 0 0x2000>;
+ interrupts = <GIC_SPI 193 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 822>;
+ power-domains = <&sysc R8A7796_PD_A3VC>;
+ resets = <&cpg 822>;
+ };
};
};
diff --git a/arch/arm64/boot/dts/renesas/r8a77995-draak.dts b/arch/arm64/boot/dts/renesas/r8a77995-draak.dts
new file mode 100644
index 000000000000..d144370051d5
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r8a77995-draak.dts
@@ -0,0 +1,46 @@
+/*
+ * Device Tree Source for the Draak board
+ *
+ * Copyright (C) 2016 Renesas Electronics Corp.
+ * Copyright (C) 2017 Glider bvba
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/dts-v1/;
+#include "r8a77995.dtsi"
+
+/ {
+ model = "Renesas Draak board based on r8a77995";
+ compatible = "renesas,draak", "renesas,r8a77995";
+
+ aliases {
+ serial0 = &scif2;
+ };
+
+ chosen {
+ bootargs = "ignore_loglevel";
+ stdout-path = "serial0:115200n8";
+ };
+
+ memory@48000000 {
+ device_type = "memory";
+ /* first 128MB is reserved for secure area. */
+ reg = <0x0 0x48000000 0x0 0x18000000>;
+ };
+};
+
+&extal_clk {
+ clock-frequency = <48000000>;
+};
+
+&scif2 {
+ status = "okay";
+};
+
+&rwdt {
+ timeout-sec = <60>;
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/renesas/r8a77995.dtsi b/arch/arm64/boot/dts/renesas/r8a77995.dtsi
new file mode 100644
index 000000000000..d0f95b78c022
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r8a77995.dtsi
@@ -0,0 +1,155 @@
+/*
+ * Device Tree Source for the r8a77995 SoC
+ *
+ * Copyright (C) 2016 Renesas Electronics Corp.
+ * Copyright (C) 2017 Glider bvba
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <dt-bindings/clock/renesas-cpg-mssr.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ compatible = "renesas,r8a77995";
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ psci {
+ compatible = "arm,psci-1.0", "arm,psci-0.2";
+ method = "smc";
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ a53_0: cpu@0 {
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0>;
+ device_type = "cpu";
+ power-domains = <&sysc 5>;
+ next-level-cache = <&L2_CA53>;
+ enable-method = "psci";
+ };
+
+ L2_CA53: cache-controller-1 {
+ compatible = "cache";
+ power-domains = <&sysc 21>;
+ cache-unified;
+ cache-level = <2>;
+ };
+ };
+
+ extal_clk: extal {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ /* This value must be overridden by the board */
+ clock-frequency = <0>;
+ };
+
+ scif_clk: scif {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <0>;
+ };
+
+ soc {
+ compatible = "simple-bus";
+ interrupt-parent = <&gic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ gic: interrupt-controller@f1010000 {
+ compatible = "arm,gic-400";
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+ interrupt-controller;
+ reg = <0x0 0xf1010000 0 0x1000>,
+ <0x0 0xf1020000 0 0x20000>,
+ <0x0 0xf1040000 0 0x20000>,
+ <0x0 0xf1060000 0 0x20000>;
+ interrupts = <GIC_PPI 9
+ (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_HIGH)>;
+ clocks = <&cpg CPG_MOD 408>;
+ clock-names = "clk";
+ power-domains = <&sysc 32>;
+ resets = <&cpg 408>;
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 13
+ (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 14
+ (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 11
+ (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 10
+ (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>;
+ };
+
+ rwdt: watchdog@e6020000 {
+ compatible = "renesas,r8a77995-wdt",
+ "renesas,rcar-gen3-wdt";
+ reg = <0 0xe6020000 0 0x0c>;
+ clocks = <&cpg CPG_MOD 402>;
+ power-domains = <&sysc 32>;
+ resets = <&cpg 402>;
+ status = "disabled";
+ };
+
+ pmu_a53 {
+ compatible = "arm,cortex-a53-pmu";
+ interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ cpg: clock-controller@e6150000 {
+ compatible = "renesas,r8a77995-cpg-mssr";
+ reg = <0 0xe6150000 0 0x1000>;
+ clocks = <&extal_clk>;
+ clock-names = "extal";
+ #clock-cells = <2>;
+ #power-domain-cells = <0>;
+ #reset-cells = <1>;
+ };
+
+ rst: reset-controller@e6160000 {
+ compatible = "renesas,r8a77995-rst";
+ reg = <0 0xe6160000 0 0x0200>;
+ };
+
+ pfc: pfc@e6060000 {
+ compatible = "renesas,pfc-r8a77995";
+ reg = <0 0xe6060000 0 0x508>;
+ };
+
+ prr: chipid@fff00044 {
+ compatible = "renesas,prr";
+ reg = <0 0xfff00044 0 4>;
+ };
+
+ sysc: system-controller@e6180000 {
+ compatible = "renesas,r8a77995-sysc";
+ reg = <0 0xe6180000 0 0x0400>;
+ #power-domain-cells = <1>;
+ };
+
+ scif2: serial@e6e88000 {
+ compatible = "renesas,scif-r8a77995",
+ "renesas,rcar-gen3-scif", "renesas,scif";
+ reg = <0 0xe6e88000 0 64>;
+ interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 310>,
+ <&cpg CPG_CORE 16>,
+ <&scif_clk>;
+ clock-names = "fck", "brg_int", "scif_clk";
+ power-domains = <&sysc 32>;
+ resets = <&cpg 310>;
+ status = "disabled";
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/renesas/salvator-common.dtsi b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
new file mode 100644
index 000000000000..d9d885006a8e
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
@@ -0,0 +1,635 @@
+/*
+ * Device Tree Source for common parts of Salvator-X board variants
+ *
+ * Copyright (C) 2015-2016 Renesas Electronics Corp.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/*
+ * SSI-AK4613
+ *
+ * This command is required when Playback/Capture
+ *
+ * amixer set "DVC Out" 100%
+ * amixer set "DVC In" 100%
+ *
+ * You can use Mute
+ *
+ * amixer set "DVC Out Mute" on
+ * amixer set "DVC In Mute" on
+ *
+ * You can use Volume Ramp
+ *
+ * amixer set "DVC Out Ramp Up Rate" "0.125 dB/64 steps"
+ * amixer set "DVC Out Ramp Down Rate" "0.125 dB/512 steps"
+ * amixer set "DVC Out Ramp" on
+ * aplay xxx.wav &
+ * amixer set "DVC Out" 80% // Volume Down
+ * amixer set "DVC Out" 100% // Volume Up
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ aliases {
+ serial0 = &scif2;
+ serial1 = &scif1;
+ ethernet0 = &avb;
+ };
+
+ chosen {
+ bootargs = "ignore_loglevel rw root=/dev/nfs ip=dhcp";
+ stdout-path = "serial0:115200n8";
+ };
+
+ audio_clkout: audio-clkout {
+ /*
+ * This is same as <&rcar_sound 0>
+ * but needed to avoid cs2000/rcar_sound probe dead-lock
+ */
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <11289600>;
+ };
+
+ backlight: backlight {
+ compatible = "pwm-backlight";
+ pwms = <&pwm1 0 50000>;
+
+ brightness-levels = <256 128 64 16 8 4 0>;
+ default-brightness-level = <6>;
+
+ power-supply = <&reg_12v>;
+ enable-gpios = <&gpio6 7 GPIO_ACTIVE_HIGH>;
+ };
+
+ reg_1p8v: regulator0 {
+ compatible = "regulator-fixed";
+ regulator-name = "fixed-1.8V";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_3p3v: regulator1 {
+ compatible = "regulator-fixed";
+ regulator-name = "fixed-3.3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_12v: regulator2 {
+ compatible = "regulator-fixed";
+ regulator-name = "fixed-12V";
+ regulator-min-microvolt = <12000000>;
+ regulator-max-microvolt = <12000000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ rsnd_ak4613: sound {
+ compatible = "simple-audio-card";
+
+ simple-audio-card,format = "left_j";
+ simple-audio-card,bitclock-master = <&sndcpu>;
+ simple-audio-card,frame-master = <&sndcpu>;
+
+ sndcpu: simple-audio-card,cpu {
+ sound-dai = <&rcar_sound>;
+ };
+
+ sndcodec: simple-audio-card,codec {
+ sound-dai = <&ak4613>;
+ };
+ };
+
+ vbus0_usb2: regulator-vbus0-usb2 {
+ compatible = "regulator-fixed";
+
+ regulator-name = "USB20_VBUS0";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+
+ gpio = <&gpio6 16 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ vcc_sdhi0: regulator-vcc-sdhi0 {
+ compatible = "regulator-fixed";
+
+ regulator-name = "SDHI0 Vcc";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpio = <&gpio5 2 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ vccq_sdhi0: regulator-vccq-sdhi0 {
+ compatible = "regulator-gpio";
+
+ regulator-name = "SDHI0 VccQ";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>;
+ gpios-states = <1>;
+ states = <3300000 1
+ 1800000 0>;
+ };
+
+ vcc_sdhi3: regulator-vcc-sdhi3 {
+ compatible = "regulator-fixed";
+
+ regulator-name = "SDHI3 Vcc";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpio = <&gpio3 15 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ vccq_sdhi3: regulator-vccq-sdhi3 {
+ compatible = "regulator-gpio";
+
+ regulator-name = "SDHI3 VccQ";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpios = <&gpio3 14 GPIO_ACTIVE_HIGH>;
+ gpios-states = <1>;
+ states = <3300000 1
+ 1800000 0>;
+ };
+
+ hdmi0-out {
+ compatible = "hdmi-connector";
+ label = "HDMI0 OUT";
+ type = "a";
+
+ port {
+ hdmi0_con: endpoint {
+ };
+ };
+ };
+
+ hdmi1-out {
+ compatible = "hdmi-connector";
+ label = "HDMI1 OUT";
+ type = "a";
+
+ port {
+ hdmi1_con: endpoint {
+ };
+ };
+ };
+
+ vga {
+ compatible = "vga-connector";
+
+ port {
+ vga_in: endpoint {
+ remote-endpoint = <&adv7123_out>;
+ };
+ };
+ };
+
+ vga-encoder {
+ compatible = "adi,adv7123";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ adv7123_in: endpoint {
+ remote-endpoint = <&du_out_rgb>;
+ };
+ };
+ port@1 {
+ reg = <1>;
+ adv7123_out: endpoint {
+ remote-endpoint = <&vga_in>;
+ };
+ };
+ };
+ };
+
+ x12_clk: x12 {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <24576000>;
+ };
+
+ /* External DU dot clocks */
+ x21_clk: x21-clock {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <33000000>;
+ };
+
+ x22_clk: x22-clock {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <33000000>;
+ };
+
+ x23_clk: x23-clock {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <25000000>;
+ };
+};
+
+&audio_clk_a {
+ clock-frequency = <22579200>;
+};
+
+&avb {
+ pinctrl-0 = <&avb_pins>;
+ pinctrl-names = "default";
+ renesas,no-ether-link;
+ phy-handle = <&phy0>;
+ status = "okay";
+
+ phy0: ethernet-phy@0 {
+ rxc-skew-ps = <1500>;
+ reg = <0>;
+ interrupt-parent = <&gpio2>;
+ interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+ };
+};
+
+&du {
+ pinctrl-0 = <&du_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+
+ ports {
+ port@0 {
+ endpoint {
+ remote-endpoint = <&adv7123_in>;
+ };
+ };
+ };
+};
+
+&ehci0 {
+ status = "okay";
+};
+
+&ehci1 {
+ status = "okay";
+};
+
+&extalr_clk {
+ clock-frequency = <32768>;
+};
+
+&hsusb {
+ status = "okay";
+};
+
+&i2c2 {
+ pinctrl-0 = <&i2c2_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+
+ clock-frequency = <100000>;
+
+ ak4613: codec@10 {
+ compatible = "asahi-kasei,ak4613";
+ #sound-dai-cells = <0>;
+ reg = <0x10>;
+ clocks = <&rcar_sound 3>;
+
+ asahi-kasei,in1-single-end;
+ asahi-kasei,in2-single-end;
+ asahi-kasei,out1-single-end;
+ asahi-kasei,out2-single-end;
+ asahi-kasei,out3-single-end;
+ asahi-kasei,out4-single-end;
+ asahi-kasei,out5-single-end;
+ asahi-kasei,out6-single-end;
+ };
+
+ cs2000: clk_multiplier@4f {
+ #clock-cells = <0>;
+ compatible = "cirrus,cs2000-cp";
+ reg = <0x4f>;
+ clocks = <&audio_clkout>, <&x12_clk>;
+ clock-names = "clk_in", "ref_clk";
+
+ assigned-clocks = <&cs2000>;
+ assigned-clock-rates = <24576000>; /* 1/1 divide */
+ };
+};
+
+&i2c4 {
+ status = "okay";
+
+ csa_vdd: adc@7c {
+ compatible = "maxim,max9611";
+ reg = <0x7c>;
+
+ shunt-resistor-micro-ohms = <5000>;
+ };
+
+ csa_dvfs: adc@7f {
+ compatible = "maxim,max9611";
+ reg = <0x7f>;
+
+ shunt-resistor-micro-ohms = <5000>;
+ };
+};
+
+&i2c_dvfs {
+ status = "okay";
+};
+
+&ohci0 {
+ status = "okay";
+};
+
+&ohci1 {
+ status = "okay";
+};
+
+&pcie_bus_clk {
+ clock-frequency = <100000000>;
+};
+
+&pciec0 {
+ status = "okay";
+};
+
+&pciec1 {
+ status = "okay";
+};
+
+&pfc {
+ pinctrl-0 = <&scif_clk_pins>;
+ pinctrl-names = "default";
+
+ avb_pins: avb {
+ mux {
+ groups = "avb_link", "avb_phy_int", "avb_mdc",
+ "avb_mii";
+ function = "avb";
+ };
+
+ pins_mdc {
+ groups = "avb_mdc";
+ drive-strength = <24>;
+ };
+
+ pins_mii_tx {
+ pins = "PIN_AVB_TX_CTL", "PIN_AVB_TXC", "PIN_AVB_TD0",
+ "PIN_AVB_TD1", "PIN_AVB_TD2", "PIN_AVB_TD3";
+ drive-strength = <12>;
+ };
+ };
+
+ du_pins: du {
+ groups = "du_rgb888", "du_sync", "du_oddf", "du_clk_out_0";
+ function = "du";
+ };
+
+ i2c2_pins: i2c2 {
+ groups = "i2c2_a";
+ function = "i2c2";
+ };
+
+ pwm1_pins: pwm1 {
+ groups = "pwm1_a";
+ function = "pwm1";
+ };
+
+ scif1_pins: scif1 {
+ groups = "scif1_data_a", "scif1_ctrl";
+ function = "scif1";
+ };
+
+ scif2_pins: scif2 {
+ groups = "scif2_data_a";
+ function = "scif2";
+ };
+
+ scif_clk_pins: scif_clk {
+ groups = "scif_clk_a";
+ function = "scif_clk";
+ };
+
+ sdhi0_pins: sd0 {
+ groups = "sdhi0_data4", "sdhi0_ctrl";
+ function = "sdhi0";
+ power-source = <3300>;
+ };
+
+ sdhi0_pins_uhs: sd0_uhs {
+ groups = "sdhi0_data4", "sdhi0_ctrl";
+ function = "sdhi0";
+ power-source = <1800>;
+ };
+
+ sdhi2_pins: sd2 {
+ groups = "sdhi2_data8", "sdhi2_ctrl";
+ function = "sdhi2";
+ power-source = <3300>;
+ };
+
+ sdhi2_pins_uhs: sd2_uhs {
+ groups = "sdhi2_data8", "sdhi2_ctrl";
+ function = "sdhi2";
+ power-source = <1800>;
+ };
+
+ sdhi3_pins: sd3 {
+ groups = "sdhi3_data4", "sdhi3_ctrl";
+ function = "sdhi3";
+ power-source = <3300>;
+ };
+
+ sdhi3_pins_uhs: sd3_uhs {
+ groups = "sdhi3_data4", "sdhi3_ctrl";
+ function = "sdhi3";
+ power-source = <1800>;
+ };
+
+ sound_pins: sound {
+ groups = "ssi01239_ctrl", "ssi0_data", "ssi1_data_a";
+ function = "ssi";
+ };
+
+ sound_clk_pins: sound_clk {
+ groups = "audio_clk_a_a", "audio_clk_b_a", "audio_clk_c_a",
+ "audio_clkout_a", "audio_clkout3_a";
+ function = "audio_clk";
+ };
+
+ usb0_pins: usb0 {
+ groups = "usb0";
+ function = "usb0";
+ };
+
+ usb1_pins: usb1 {
+ mux {
+ groups = "usb1";
+ function = "usb1";
+ };
+
+ ovc {
+ pins = "GP_6_27";
+ bias-pull-up;
+ };
+
+ pwen {
+ pins = "GP_6_26";
+ bias-pull-down;
+ };
+ };
+};
+
+&pwm1 {
+ pinctrl-0 = <&pwm1_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+};
+
+&rcar_sound {
+ pinctrl-0 = <&sound_pins &sound_clk_pins>;
+ pinctrl-names = "default";
+
+ /* Single DAI */
+ #sound-dai-cells = <0>;
+
+ /* audio_clkout0/1/2/3 */
+ #clock-cells = <1>;
+ clock-frequency = <12288000 11289600>;
+
+ status = "okay";
+
+ /* update <audio_clk_b> to <cs2000> */
+ clocks = <&cpg CPG_MOD 1005>,
+ <&cpg CPG_MOD 1006>, <&cpg CPG_MOD 1007>,
+ <&cpg CPG_MOD 1008>, <&cpg CPG_MOD 1009>,
+ <&cpg CPG_MOD 1010>, <&cpg CPG_MOD 1011>,
+ <&cpg CPG_MOD 1012>, <&cpg CPG_MOD 1013>,
+ <&cpg CPG_MOD 1014>, <&cpg CPG_MOD 1015>,
+ <&cpg CPG_MOD 1022>, <&cpg CPG_MOD 1023>,
+ <&cpg CPG_MOD 1024>, <&cpg CPG_MOD 1025>,
+ <&cpg CPG_MOD 1026>, <&cpg CPG_MOD 1027>,
+ <&cpg CPG_MOD 1028>, <&cpg CPG_MOD 1029>,
+ <&cpg CPG_MOD 1030>, <&cpg CPG_MOD 1031>,
+ <&cpg CPG_MOD 1020>, <&cpg CPG_MOD 1021>,
+ <&cpg CPG_MOD 1020>, <&cpg CPG_MOD 1021>,
+ <&cpg CPG_MOD 1019>, <&cpg CPG_MOD 1018>,
+ <&audio_clk_a>, <&cs2000>,
+ <&audio_clk_c>,
+ <&cpg CPG_CORE CPG_AUDIO_CLK_I>;
+
+ rcar_sound,dai {
+ dai0 {
+ playback = <&ssi0 &src0 &dvc0>;
+ capture = <&ssi1 &src1 &dvc1>;
+ };
+ };
+};
+
+&scif1 {
+ pinctrl-0 = <&scif1_pins>;
+ pinctrl-names = "default";
+
+ uart-has-rtscts;
+ status = "okay";
+};
+
+&scif2 {
+ pinctrl-0 = <&scif2_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+};
+
+&scif_clk {
+ clock-frequency = <14745600>;
+};
+
+&sdhi0 {
+ pinctrl-0 = <&sdhi0_pins>;
+ pinctrl-1 = <&sdhi0_pins_uhs>;
+ pinctrl-names = "default", "state_uhs";
+
+ vmmc-supply = <&vcc_sdhi0>;
+ vqmmc-supply = <&vccq_sdhi0>;
+ cd-gpios = <&gpio3 12 GPIO_ACTIVE_LOW>;
+ wp-gpios = <&gpio3 13 GPIO_ACTIVE_HIGH>;
+ bus-width = <4>;
+ sd-uhs-sdr50;
+ status = "okay";
+};
+
+&sdhi2 {
+ /* used for on-board 8bit eMMC */
+ pinctrl-0 = <&sdhi2_pins>;
+ pinctrl-1 = <&sdhi2_pins_uhs>;
+ pinctrl-names = "default", "state_uhs";
+
+ vmmc-supply = <&reg_3p3v>;
+ vqmmc-supply = <&reg_1p8v>;
+ bus-width = <8>;
+ mmc-hs200-1_8v;
+ non-removable;
+ status = "okay";
+};
+
+&sdhi3 {
+ pinctrl-0 = <&sdhi3_pins>;
+ pinctrl-1 = <&sdhi3_pins_uhs>;
+ pinctrl-names = "default", "state_uhs";
+
+ vmmc-supply = <&vcc_sdhi3>;
+ vqmmc-supply = <&vccq_sdhi3>;
+ cd-gpios = <&gpio4 15 GPIO_ACTIVE_LOW>;
+ wp-gpios = <&gpio4 16 GPIO_ACTIVE_HIGH>;
+ bus-width = <4>;
+ sd-uhs-sdr50;
+ status = "okay";
+};
+
+&ssi1 {
+ shared-pin;
+};
+
+&usb2_phy0 {
+ pinctrl-0 = <&usb0_pins>;
+ pinctrl-names = "default";
+
+ vbus-supply = <&vbus0_usb2>;
+ status = "okay";
+};
+
+&usb2_phy1 {
+ pinctrl-0 = <&usb1_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+};
+
+&wdt0 {
+ timeout-sec = <60>;
+ status = "okay";
+};
+
+&xhci0 {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/renesas/salvator-x.dtsi b/arch/arm64/boot/dts/renesas/salvator-x.dtsi
new file mode 100644
index 000000000000..468868c8ed9f
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/salvator-x.dtsi
@@ -0,0 +1,30 @@
+/*
+ * Device Tree Source for the Salvator-X board
+ *
+ * Copyright (C) 2015-2016 Renesas Electronics Corp.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include "salvator-common.dtsi"
+
+/ {
+ model = "Renesas Salvator-X board";
+ compatible = "renesas,salvator-x";
+};
+
+&extal_clk {
+ clock-frequency = <16666666>;
+};
+
+&i2c4 {
+ versaclock5: clock-generator@6a {
+ compatible = "idt,5p49v5923";
+ reg = <0x6a>;
+ #clock-cells = <1>;
+ clocks = <&x23_clk>;
+ clock-names = "xin";
+ };
+};
diff --git a/arch/arm64/boot/dts/renesas/salvator-xs.dtsi b/arch/arm64/boot/dts/renesas/salvator-xs.dtsi
new file mode 100644
index 000000000000..bf4d200fb546
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/salvator-xs.dtsi
@@ -0,0 +1,30 @@
+/*
+ * Device Tree Source for the Salvator-X 2nd version board
+ *
+ * Copyright (C) 2015-2017 Renesas Electronics Corp.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include "salvator-common.dtsi"
+
+/ {
+ model = "Renesas Salvator-X 2nd version board";
+ compatible = "renesas,salvator-xs";
+};
+
+&extal_clk {
+ clock-frequency = <16640000>;
+};
+
+&i2c4 {
+ versaclock6: clock-generator@6a {
+ compatible = "idt,5p49v6901";
+ reg = <0x6a>;
+ #clock-cells = <1>;
+ clocks = <&x23_clk>;
+ clock-names = "xin";
+ };
+};
diff --git a/arch/arm64/boot/dts/renesas/ulcb.dtsi b/arch/arm64/boot/dts/renesas/ulcb.dtsi
new file mode 100644
index 000000000000..1b868df2393f
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/ulcb.dtsi
@@ -0,0 +1,418 @@
+/*
+ * Device Tree Source for the R-Car Gen3 ULCB board
+ *
+ * Copyright (C) 2016 Renesas Electronics Corp.
+ * Copyright (C) 2016 Cogent Embedded, Inc.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+ model = "Renesas R-Car Gen3 ULCB board";
+
+ aliases {
+ serial0 = &scif2;
+ ethernet0 = &avb;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ audio_clkout: audio-clkout {
+ /*
+ * This is same as <&rcar_sound 0>
+ * but needed to avoid cs2000/rcar_sound probe dead-lock
+ */
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <11289600>;
+ };
+
+ hdmi0-out {
+ compatible = "hdmi-connector";
+ type = "a";
+
+ port {
+ hdmi0_con: endpoint {
+ };
+ };
+ };
+
+ keyboard {
+ compatible = "gpio-keys";
+
+ key-1 {
+ linux,code = <KEY_1>;
+ label = "SW3";
+ wakeup-source;
+ debounce-interval = <20>;
+ gpios = <&gpio6 11 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ led5 {
+ gpios = <&gpio6 12 GPIO_ACTIVE_HIGH>;
+ };
+ led6 {
+ gpios = <&gpio6 13 GPIO_ACTIVE_HIGH>;
+ };
+ };
+
+ reg_1p8v: regulator0 {
+ compatible = "regulator-fixed";
+ regulator-name = "fixed-1.8V";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_3p3v: regulator1 {
+ compatible = "regulator-fixed";
+ regulator-name = "fixed-3.3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ rsnd_ak4613: sound {
+ compatible = "simple-audio-card";
+
+ simple-audio-card,format = "left_j";
+ simple-audio-card,bitclock-master = <&sndcpu>;
+ simple-audio-card,frame-master = <&sndcpu>;
+
+ sndcpu: simple-audio-card,cpu {
+ sound-dai = <&rcar_sound>;
+ };
+
+ sndcodec: simple-audio-card,codec {
+ sound-dai = <&ak4613>;
+ };
+ };
+
+ vcc_sdhi0: regulator-vcc-sdhi0 {
+ compatible = "regulator-fixed";
+
+ regulator-name = "SDHI0 Vcc";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpio = <&gpio5 2 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ vccq_sdhi0: regulator-vccq-sdhi0 {
+ compatible = "regulator-gpio";
+
+ regulator-name = "SDHI0 VccQ";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>;
+ gpios-states = <1>;
+ states = <3300000 1
+ 1800000 0>;
+ };
+
+ x12_clk: x12 {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <24576000>;
+ };
+
+ x23_clk: x23-clock {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <25000000>;
+ };
+};
+
+&audio_clk_a {
+ clock-frequency = <22579200>;
+};
+
+&avb {
+ pinctrl-0 = <&avb_pins>;
+ pinctrl-names = "default";
+ renesas,no-ether-link;
+ phy-handle = <&phy0>;
+ status = "okay";
+
+ phy0: ethernet-phy@0 {
+ rxc-skew-ps = <1500>;
+ reg = <0>;
+ interrupt-parent = <&gpio2>;
+ interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+ };
+};
+
+&ehci1 {
+ status = "okay";
+};
+
+&extal_clk {
+ clock-frequency = <16666666>;
+};
+
+&extalr_clk {
+ clock-frequency = <32768>;
+};
+
+&hdmi0 {
+ status = "okay";
+
+ ports {
+ port@1 {
+ reg = <1>;
+ rcar_dw_hdmi0_out: endpoint {
+ remote-endpoint = <&hdmi0_con>;
+ };
+ };
+ };
+};
+
+&hdmi0_con {
+ remote-endpoint = <&rcar_dw_hdmi0_out>;
+};
+
+&i2c2 {
+ pinctrl-0 = <&i2c2_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+
+ clock-frequency = <100000>;
+
+ ak4613: codec@10 {
+ compatible = "asahi-kasei,ak4613";
+ #sound-dai-cells = <0>;
+ reg = <0x10>;
+ clocks = <&rcar_sound 3>;
+
+ asahi-kasei,in1-single-end;
+ asahi-kasei,in2-single-end;
+ asahi-kasei,out1-single-end;
+ asahi-kasei,out2-single-end;
+ asahi-kasei,out3-single-end;
+ asahi-kasei,out4-single-end;
+ asahi-kasei,out5-single-end;
+ asahi-kasei,out6-single-end;
+ };
+
+ cs2000: clk-multiplier@4f {
+ #clock-cells = <0>;
+ compatible = "cirrus,cs2000-cp";
+ reg = <0x4f>;
+ clocks = <&audio_clkout>, <&x12_clk>;
+ clock-names = "clk_in", "ref_clk";
+
+ assigned-clocks = <&cs2000>;
+ assigned-clock-rates = <24576000>; /* 1/1 divide */
+ };
+};
+
+&i2c4 {
+ status = "okay";
+
+ clock-frequency = <400000>;
+
+ versaclock5: clock-generator@6a {
+ compatible = "idt,5p49v5925";
+ reg = <0x6a>;
+ #clock-cells = <1>;
+ clocks = <&x23_clk>;
+ clock-names = "xin";
+ };
+};
+
+&i2c_dvfs {
+ status = "okay";
+};
+
+&ohci1 {
+ status = "okay";
+};
+
+&pfc {
+ pinctrl-0 = <&scif_clk_pins>;
+ pinctrl-names = "default";
+
+ avb_pins: avb {
+ mux {
+ groups = "avb_link", "avb_phy_int", "avb_mdc",
+ "avb_mii";
+ function = "avb";
+ };
+
+ pins_mdc {
+ groups = "avb_mdc";
+ drive-strength = <24>;
+ };
+
+ pins_mii_tx {
+ pins = "PIN_AVB_TX_CTL", "PIN_AVB_TXC", "PIN_AVB_TD0",
+ "PIN_AVB_TD1", "PIN_AVB_TD2", "PIN_AVB_TD3";
+ drive-strength = <12>;
+ };
+ };
+
+ i2c2_pins: i2c2 {
+ groups = "i2c2_a";
+ function = "i2c2";
+ };
+
+ scif2_pins: scif2 {
+ groups = "scif2_data_a";
+ function = "scif2";
+ };
+
+ scif_clk_pins: scif_clk {
+ groups = "scif_clk_a";
+ function = "scif_clk";
+ };
+
+ sdhi0_pins: sd0 {
+ groups = "sdhi0_data4", "sdhi0_ctrl";
+ function = "sdhi0";
+ power-source = <3300>;
+ };
+
+ sdhi0_pins_uhs: sd0_uhs {
+ groups = "sdhi0_data4", "sdhi0_ctrl";
+ function = "sdhi0";
+ power-source = <1800>;
+ };
+
+ sdhi2_pins: sd2 {
+ groups = "sdhi2_data8", "sdhi2_ctrl";
+ function = "sdhi2";
+ power-source = <3300>;
+ };
+
+ sdhi2_pins_uhs: sd2_uhs {
+ groups = "sdhi2_data8", "sdhi2_ctrl";
+ function = "sdhi2";
+ power-source = <1800>;
+ };
+
+ sound_pins: sound {
+ groups = "ssi01239_ctrl", "ssi0_data", "ssi1_data_a";
+ function = "ssi";
+ };
+
+ sound_clk_pins: sound-clk {
+ groups = "audio_clk_a_a", "audio_clk_b_a", "audio_clk_c_a",
+ "audio_clkout_a", "audio_clkout3_a";
+ function = "audio_clk";
+ };
+
+ usb1_pins: usb1 {
+ groups = "usb1";
+ function = "usb1";
+ };
+};
+
+&rcar_sound {
+ pinctrl-0 = <&sound_pins &sound_clk_pins>;
+ pinctrl-names = "default";
+
+ /* Single DAI */
+ #sound-dai-cells = <0>;
+
+ /* audio_clkout0/1/2/3 */
+ #clock-cells = <1>;
+ clock-frequency = <12288000 11289600>;
+
+ status = "okay";
+
+ /* update <audio_clk_b> to <cs2000> */
+ clocks = <&cpg CPG_MOD 1005>,
+ <&cpg CPG_MOD 1006>, <&cpg CPG_MOD 1007>,
+ <&cpg CPG_MOD 1008>, <&cpg CPG_MOD 1009>,
+ <&cpg CPG_MOD 1010>, <&cpg CPG_MOD 1011>,
+ <&cpg CPG_MOD 1012>, <&cpg CPG_MOD 1013>,
+ <&cpg CPG_MOD 1014>, <&cpg CPG_MOD 1015>,
+ <&cpg CPG_MOD 1022>, <&cpg CPG_MOD 1023>,
+ <&cpg CPG_MOD 1024>, <&cpg CPG_MOD 1025>,
+ <&cpg CPG_MOD 1026>, <&cpg CPG_MOD 1027>,
+ <&cpg CPG_MOD 1028>, <&cpg CPG_MOD 1029>,
+ <&cpg CPG_MOD 1030>, <&cpg CPG_MOD 1031>,
+ <&cpg CPG_MOD 1020>, <&cpg CPG_MOD 1021>,
+ <&cpg CPG_MOD 1020>, <&cpg CPG_MOD 1021>,
+ <&cpg CPG_MOD 1019>, <&cpg CPG_MOD 1018>,
+ <&audio_clk_a>, <&cs2000>,
+ <&audio_clk_c>,
+ <&cpg CPG_CORE CPG_AUDIO_CLK_I>;
+
+ rcar_sound,dai {
+ dai0 {
+ playback = <&ssi0 &src0 &dvc0>;
+ capture = <&ssi1 &src1 &dvc1>;
+ };
+ };
+};
+
+&scif2 {
+ pinctrl-0 = <&scif2_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+};
+
+&scif_clk {
+ clock-frequency = <14745600>;
+};
+
+&sdhi0 {
+ pinctrl-0 = <&sdhi0_pins>;
+ pinctrl-1 = <&sdhi0_pins_uhs>;
+ pinctrl-names = "default", "state_uhs";
+
+ vmmc-supply = <&vcc_sdhi0>;
+ vqmmc-supply = <&vccq_sdhi0>;
+ cd-gpios = <&gpio3 12 GPIO_ACTIVE_LOW>;
+ bus-width = <4>;
+ sd-uhs-sdr50;
+ status = "okay";
+};
+
+&sdhi2 {
+ /* used for on-board 8bit eMMC */
+ pinctrl-0 = <&sdhi2_pins>;
+ pinctrl-1 = <&sdhi2_pins_uhs>;
+ pinctrl-names = "default", "state_uhs";
+
+ vmmc-supply = <&reg_3p3v>;
+ vqmmc-supply = <&reg_1p8v>;
+ bus-width = <8>;
+ mmc-hs200-1_8v;
+ non-removable;
+ status = "okay";
+};
+
+&ssi1 {
+ shared-pin;
+};
+
+&usb2_phy1 {
+ pinctrl-0 = <&usb1_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+};
+
+&wdt0 {
+ timeout-sec = <60>;
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index b5636bba6b1c..f1c9b13cea5c 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -1,11 +1,15 @@
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-evb.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-rock64.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-evb-act8846.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-geekbox.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-orion-r68-meta.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-px5-evb.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-r88.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-evb.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-firefly.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-gru-kevin.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-puma-haikou.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire-excavator.dtb
always := $(dtb-y)
subdir-y := $(dts-dirs)
diff --git a/arch/arm64/boot/dts/rockchip/rk3328-evb.dts b/arch/arm64/boot/dts/rockchip/rk3328-evb.dts
index cf272392cebf..8e6a65431756 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328-evb.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3328-evb.dts
@@ -50,8 +50,189 @@
chosen {
stdout-path = "serial2:1500000n8";
};
+
+ dc_12v: dc-12v {
+ compatible = "regulator-fixed";
+ regulator-name = "dc_12v";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <12000000>;
+ regulator-max-microvolt = <12000000>;
+ };
+
+ vcc_sys: vcc-sys {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc_sys";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ vin-supply = <&dc_12v>;
+ };
+
+ vcc_phy: vcc-phy-regulator {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc_phy";
+ regulator-always-on;
+ regulator-boot-on;
+ };
+};
+
+&gmac2phy {
+ phy-supply = <&vcc_phy>;
+ clock_in_out = "output";
+ assigned-clocks = <&cru SCLK_MAC2PHY_SRC>;
+ assigned-clock-rate = <50000000>;
+ assigned-clocks = <&cru SCLK_MAC2PHY>;
+ assigned-clock-parents = <&cru SCLK_MAC2PHY_SRC>;
+ status = "okay";
+};
+
+&i2c1 {
+ status = "okay";
+
+ rk805: rk805@18 {
+ compatible = "rockchip,rk805";
+ reg = <0x18>;
+ interrupt-parent = <&gpio2>;
+ interrupts = <6 IRQ_TYPE_LEVEL_LOW>;
+ #clock-cells = <1>;
+ clock-output-names = "xin32k", "rk805-clkout2";
+ gpio-controller;
+ #gpio-cells = <2>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pmic_int_l>;
+ rockchip,system-power-controller;
+ wakeup-source;
+
+ vcc1-supply = <&vcc_sys>;
+ vcc2-supply = <&vcc_sys>;
+ vcc3-supply = <&vcc_sys>;
+ vcc4-supply = <&vcc_sys>;
+ vcc5-supply = <&vcc_io>;
+ vcc6-supply = <&vcc_io>;
+
+ regulators {
+ vdd_logic: DCDC_REG1 {
+ regulator-name = "vdd_logic";
+ regulator-min-microvolt = <712500>;
+ regulator-max-microvolt = <1450000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1000000>;
+ };
+ };
+
+ vdd_arm: DCDC_REG2 {
+ regulator-name = "vdd_arm";
+ regulator-min-microvolt = <712500>;
+ regulator-max-microvolt = <1450000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <950000>;
+ };
+ };
+
+ vcc_ddr: DCDC_REG3 {
+ regulator-name = "vcc_ddr";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
+ };
+
+ vcc_io: DCDC_REG4 {
+ regulator-name = "vcc_io";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <3300000>;
+ };
+ };
+
+ vcc_18: LDO_REG1 {
+ regulator-name = "vcc_18";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1800000>;
+ };
+ };
+
+ vcc18_emmc: LDO_REG2 {
+ regulator-name = "vcc18_emmc";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1800000>;
+ };
+ };
+
+ vdd_10: LDO_REG3 {
+ regulator-name = "vdd_10";
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1000000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1000000>;
+ };
+ };
+ };
+ };
+};
+
+&pinctrl {
+ pmic {
+ pmic_int_l: pmic-int-l {
+ rockchip,pins = <2 RK_PA6 RK_FUNC_GPIO &pcfg_pull_up>;
+ };
+ };
+};
+
+&tsadc {
+ status = "okay";
};
&uart2 {
status = "okay";
};
+
+&u2phy {
+ status = "okay";
+};
+
+&u2phy_host {
+ status = "okay";
+};
+
+&u2phy_otg {
+ status = "okay";
+};
+
+&usb20_otg {
+ status = "okay";
+};
+
+&usb_host0_ehci {
+ status = "okay";
+};
+
+&usb_host0_ohci {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts b/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts
new file mode 100644
index 000000000000..d4f80786e7c2
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts
@@ -0,0 +1,333 @@
+/*
+ * Copyright (c) 2017 PINE64
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include "rk3328.dtsi"
+
+/ {
+ model = "Pine64 Rock64";
+ compatible = "pine64,rock64", "rockchip,rk3328";
+
+ chosen {
+ stdout-path = "serial2:1500000n8";
+ };
+
+ gmac_clkin: external-gmac-clock {
+ compatible = "fixed-clock";
+ clock-frequency = <125000000>;
+ clock-output-names = "gmac_clkin";
+ #clock-cells = <0>;
+ };
+
+ vcc_sd: sdmmc-regulator {
+ compatible = "regulator-fixed";
+ gpio = <&gpio0 RK_PD6 GPIO_ACTIVE_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdmmc0m1_gpio>;
+ regulator-name = "vcc_sd";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ vin-supply = <&vcc_io>;
+ };
+
+ vcc_host_5v: vcc-host-5v-regulator {
+ compatible = "regulator-fixed";
+ enable-active-high;
+ gpio = <&gpio0 RK_PA0 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&usb30_host_drv>;
+ regulator-name = "vcc_host_5v";
+ regulator-always-on;
+ vin-supply = <&vcc_sys>;
+ };
+
+ vcc_host1_5v: vcc_otg_5v: vcc-host1-5v-regulator {
+ compatible = "regulator-fixed";
+ enable-active-high;
+ gpio = <&gpio0 RK_PD3 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&usb20_host_drv>;
+ regulator-name = "vcc_host1_5v";
+ regulator-always-on;
+ vin-supply = <&vcc_sys>;
+ };
+
+ vcc_sys: vcc-sys {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc_sys";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ };
+};
+
+&cpu0 {
+ cpu-supply = <&vdd_arm>;
+};
+
+&cpu1 {
+ cpu-supply = <&vdd_arm>;
+};
+
+&cpu2 {
+ cpu-supply = <&vdd_arm>;
+};
+
+&cpu3 {
+ cpu-supply = <&vdd_arm>;
+};
+
+&emmc {
+ bus-width = <8>;
+ cap-mmc-highspeed;
+ non-removable;
+ pinctrl-names = "default";
+ pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;
+ vmmc-supply = <&vcc_io>;
+ vqmmc-supply = <&vcc18_emmc>;
+ status = "okay";
+};
+
+&gmac2io {
+ assigned-clocks = <&cru SCLK_MAC2IO>, <&cru SCLK_MAC2IO_EXT>;
+ assigned-clock-parents = <&gmac_clkin>, <&gmac_clkin>;
+ clock_in_out = "input";
+ phy-supply = <&vcc_io>;
+ phy-mode = "rgmii";
+ pinctrl-names = "default";
+ pinctrl-0 = <&rgmiim1_pins>;
+ snps,reset-gpio = <&gpio1 RK_PC2 GPIO_ACTIVE_LOW>;
+ snps,reset-active-low;
+ snps,reset-delays-us = <0 10000 50000>;
+ tx_delay = <0x26>;
+ rx_delay = <0x11>;
+ status = "okay";
+};
+
+&i2c1 {
+ status = "okay";
+
+ rk805: rk805@18 {
+ compatible = "rockchip,rk805";
+ reg = <0x18>;
+ interrupt-parent = <&gpio2>;
+ interrupts = <6 IRQ_TYPE_LEVEL_LOW>;
+ #clock-cells = <1>;
+ clock-output-names = "xin32k", "rk805-clkout2";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pmic_int_l>;
+ rockchip,system-power-controller;
+ wakeup-source;
+
+ vcc1-supply = <&vcc_sys>;
+ vcc2-supply = <&vcc_sys>;
+ vcc3-supply = <&vcc_sys>;
+ vcc4-supply = <&vcc_sys>;
+ vcc5-supply = <&vcc_io>;
+ vcc6-supply = <&vcc_sys>;
+
+ regulators {
+ vdd_logic: DCDC_REG1 {
+ regulator-name = "vdd_logic";
+ regulator-min-microvolt = <712500>;
+ regulator-max-microvolt = <1450000>;
+ regulator-ramp-delay = <12500>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1000000>;
+ };
+ };
+
+ vdd_arm: DCDC_REG2 {
+ regulator-name = "vdd_arm";
+ regulator-min-microvolt = <712500>;
+ regulator-max-microvolt = <1450000>;
+ regulator-ramp-delay = <12500>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <950000>;
+ };
+ };
+
+ vcc_ddr: DCDC_REG3 {
+ regulator-name = "vcc_ddr";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
+ };
+
+ vcc_io: DCDC_REG4 {
+ regulator-name = "vcc_io";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <3300000>;
+ };
+ };
+
+ vcc_18: LDO_REG1 {
+ regulator-name = "vdd_18";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1800000>;
+ };
+ };
+
+ vcc18_emmc: LDO_REG2 {
+ regulator-name = "vcc_18emmc";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1800000>;
+ };
+ };
+
+ vdd_10: LDO_REG3 {
+ regulator-name = "vdd_10";
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1000000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1000000>;
+ };
+ };
+ };
+ };
+};
+
+&io_domains {
+ status = "okay";
+
+ vccio1-supply = <&vcc_io>;
+ vccio2-supply = <&vcc18_emmc>;
+ vccio3-supply = <&vcc_io>;
+ vccio4-supply = <&vcc_18>;
+ vccio5-supply = <&vcc_io>;
+ vccio6-supply = <&vcc_io>;
+ pmuio-supply = <&vcc_io>;
+};
+
+&pinctrl {
+ pmic {
+ pmic_int_l: pmic-int-l {
+ rockchip,pins = <2 RK_PA6 RK_FUNC_GPIO &pcfg_pull_up>;
+ };
+ };
+
+ usb2 {
+ usb20_host_drv: usb20-host-drv {
+ rockchip,pins = <0 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ usb3 {
+ usb30_host_drv: usb30-host-drv {
+ rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+};
+
+&sdmmc {
+ bus-width = <4>;
+ cap-mmc-highspeed;
+ cap-sd-highspeed;
+ disable-wp;
+ max-frequency = <150000000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdmmc0_clk &sdmmc0_cmd &sdmmc0_dectn &sdmmc0_bus4>;
+ vmmc-supply = <&vcc_sd>;
+ status = "okay";
+};
+
+&tsadc {
+ rockchip,hw-tshut-mode = <0>;
+ rockchip,hw-tshut-polarity = <0>;
+ status = "okay";
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&u2phy {
+ status = "okay";
+
+ u2phy_host: host-port {
+ status = "okay";
+ };
+
+ u2phy_otg: otg-port {
+ status = "okay";
+ };
+};
+
+&usb20_otg {
+ dr_mode = "host";
+ status = "okay";
+};
+
+&usb_host0_ehci {
+ status = "okay";
+};
+
+&usb_host0_ohci {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
index 7e69f1fe78d6..41d61840fb99 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
@@ -47,6 +47,7 @@
#include <dt-bindings/pinctrl/rockchip.h>
#include <dt-bindings/power/rk3328-power.h>
#include <dt-bindings/soc/rockchip,boot-mode.h>
+#include <dt-bindings/thermal/thermal.h>
/ {
compatible = "rockchip,rk3328";
@@ -63,6 +64,8 @@
i2c1 = &i2c1;
i2c2 = &i2c2;
i2c3 = &i2c3;
+ ethernet0 = &gmac2io;
+ ethernet1 = &gmac2phy;
};
cpus {
@@ -74,8 +77,11 @@
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x0>;
clocks = <&cru ARMCLK>;
+ #cooling-cells = <2>;
+ dynamic-power-coefficient = <120>;
enable-method = "psci";
next-level-cache = <&l2>;
+ operating-points-v2 = <&cpu0_opp_table>;
};
cpu1: cpu@1 {
@@ -83,8 +89,10 @@
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x1>;
clocks = <&cru ARMCLK>;
+ dynamic-power-coefficient = <120>;
enable-method = "psci";
next-level-cache = <&l2>;
+ operating-points-v2 = <&cpu0_opp_table>;
};
cpu2: cpu@2 {
@@ -92,8 +100,10 @@
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x2>;
clocks = <&cru ARMCLK>;
+ dynamic-power-coefficient = <120>;
enable-method = "psci";
next-level-cache = <&l2>;
+ operating-points-v2 = <&cpu0_opp_table>;
};
cpu3: cpu@3 {
@@ -101,8 +111,10 @@
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x3>;
clocks = <&cru ARMCLK>;
+ dynamic-power-coefficient = <120>;
enable-method = "psci";
next-level-cache = <&l2>;
+ operating-points-v2 = <&cpu0_opp_table>;
};
l2: l2-cache0 {
@@ -110,6 +122,43 @@
};
};
+ cpu0_opp_table: opp_table0 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp-408000000 {
+ opp-hz = /bits/ 64 <408000000>;
+ opp-microvolt = <950000>;
+ clock-latency-ns = <40000>;
+ opp-suspend;
+ };
+ opp-600000000 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <950000>;
+ clock-latency-ns = <40000>;
+ };
+ opp-816000000 {
+ opp-hz = /bits/ 64 <816000000>;
+ opp-microvolt = <1000000>;
+ clock-latency-ns = <40000>;
+ };
+ opp-1008000000 {
+ opp-hz = /bits/ 64 <1008000000>;
+ opp-microvolt = <1100000>;
+ clock-latency-ns = <40000>;
+ };
+ opp-1200000000 {
+ opp-hz = /bits/ 64 <1200000000>;
+ opp-microvolt = <1225000>;
+ clock-latency-ns = <40000>;
+ };
+ opp-1296000000 {
+ opp-hz = /bits/ 64 <1296000000>;
+ opp-microvolt = <1300000>;
+ clock-latency-ns = <40000>;
+ };
+ };
+
amba {
compatible = "simple-bus";
#address-cells = <2>;
@@ -156,12 +205,84 @@
clock-output-names = "xin24m";
};
+ i2s0: i2s@ff000000 {
+ compatible = "rockchip,rk3328-i2s", "rockchip,rk3066-i2s";
+ reg = <0x0 0xff000000 0x0 0x1000>;
+ interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_I2S0>, <&cru HCLK_I2S0_8CH>;
+ clock-names = "i2s_clk", "i2s_hclk";
+ dmas = <&dmac 11>, <&dmac 12>;
+ dma-names = "tx", "rx";
+ status = "disabled";
+ };
+
+ i2s1: i2s@ff010000 {
+ compatible = "rockchip,rk3328-i2s", "rockchip,rk3066-i2s";
+ reg = <0x0 0xff010000 0x0 0x1000>;
+ interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_I2S1>, <&cru HCLK_I2S1_8CH>;
+ clock-names = "i2s_clk", "i2s_hclk";
+ dmas = <&dmac 14>, <&dmac 15>;
+ dma-names = "tx", "rx";
+ status = "disabled";
+ };
+
+ i2s2: i2s@ff020000 {
+ compatible = "rockchip,rk3328-i2s", "rockchip,rk3066-i2s";
+ reg = <0x0 0xff020000 0x0 0x1000>;
+ interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_I2S2>, <&cru HCLK_I2S2_2CH>;
+ clock-names = "i2s_clk", "i2s_hclk";
+ dmas = <&dmac 0>, <&dmac 1>;
+ dma-names = "tx", "rx";
+ status = "disabled";
+ };
+
+ spdif: spdif@ff030000 {
+ compatible = "rockchip,rk3328-spdif";
+ reg = <0x0 0xff030000 0x0 0x1000>;
+ interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_SPDIF>, <&cru HCLK_SPDIF_8CH>;
+ clock-names = "mclk", "hclk";
+ dmas = <&dmac 10>;
+ dma-names = "tx";
+ pinctrl-names = "default";
+ pinctrl-0 = <&spdifm2_tx>;
+ status = "disabled";
+ };
+
+ pdm: pdm@ff040000 {
+ compatible = "rockchip,pdm";
+ reg = <0x0 0xff040000 0x0 0x1000>;
+ clocks = <&cru SCLK_PDM>, <&cru HCLK_PDM>;
+ clock-names = "pdm_clk", "pdm_hclk";
+ dmas = <&dmac 16>;
+ dma-names = "rx";
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&pdmm0_clk
+ &pdmm0_sdi0
+ &pdmm0_sdi1
+ &pdmm0_sdi2
+ &pdmm0_sdi3>;
+ pinctrl-1 = <&pdmm0_clk_sleep
+ &pdmm0_sdi0_sleep
+ &pdmm0_sdi1_sleep
+ &pdmm0_sdi2_sleep
+ &pdmm0_sdi3_sleep>;
+ status = "disabled";
+ };
+
grf: syscon@ff100000 {
compatible = "rockchip,rk3328-grf", "syscon", "simple-mfd";
reg = <0x0 0xff100000 0x0 0x1000>;
#address-cells = <1>;
#size-cells = <1>;
+ io_domains: io-domains {
+ compatible = "rockchip,rk3328-io-voltage-domain";
+ status = "disabled";
+ };
+
power: power-controller {
compatible = "rockchip,rk3328-power-controller";
#power-domain-cells = <1>;
@@ -308,6 +429,108 @@
interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
};
+ pwm0: pwm@ff1b0000 {
+ compatible = "rockchip,rk3328-pwm";
+ reg = <0x0 0xff1b0000 0x0 0x10>;
+ clocks = <&cru SCLK_PWM>, <&cru PCLK_PWM>;
+ clock-names = "pwm", "pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm0_pin>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm1: pwm@ff1b0010 {
+ compatible = "rockchip,rk3328-pwm";
+ reg = <0x0 0xff1b0010 0x0 0x10>;
+ clocks = <&cru SCLK_PWM>, <&cru PCLK_PWM>;
+ clock-names = "pwm", "pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm1_pin>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm2: pwm@ff1b0020 {
+ compatible = "rockchip,rk3328-pwm";
+ reg = <0x0 0xff1b0020 0x0 0x10>;
+ clocks = <&cru SCLK_PWM>, <&cru PCLK_PWM>;
+ clock-names = "pwm", "pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm2_pin>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm3: pwm@ff1b0030 {
+ compatible = "rockchip,rk3328-pwm";
+ reg = <0x0 0xff1b0030 0x0 0x10>;
+ interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_PWM>, <&cru PCLK_PWM>;
+ clock-names = "pwm", "pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwmir_pin>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ thermal-zones {
+ soc_thermal: soc-thermal {
+ polling-delay-passive = <20>;
+ polling-delay = <1000>;
+ sustainable-power = <1000>;
+
+ thermal-sensors = <&tsadc 0>;
+
+ trips {
+ threshold: trip-point0 {
+ temperature = <70000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+ target: trip-point1 {
+ temperature = <85000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+ soc_crit: soc-crit {
+ temperature = <95000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&target>;
+ cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ contribution = <4096>;
+ };
+ };
+ };
+
+ };
+
+ tsadc: tsadc@ff250000 {
+ compatible = "rockchip,rk3328-tsadc";
+ reg = <0x0 0xff250000 0x0 0x100>;
+ interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH 0>;
+ assigned-clocks = <&cru SCLK_TSADC>;
+ assigned-clock-rates = <50000>;
+ clocks = <&cru SCLK_TSADC>, <&cru PCLK_TSADC>;
+ clock-names = "tsadc", "apb_pclk";
+ pinctrl-names = "init", "default", "sleep";
+ pinctrl-0 = <&otp_gpio>;
+ pinctrl-1 = <&otp_out>;
+ pinctrl-2 = <&otp_gpio>;
+ resets = <&cru SRST_TSADC>;
+ reset-names = "tsadc-apb";
+ rockchip,grf = <&grf>;
+ rockchip,hw-tshut-temp = <100000>;
+ #thermal-sensor-cells = <1>;
+ status = "disabled";
+ };
+
saradc: adc@ff280000 {
compatible = "rockchip,rk3328-saradc", "rockchip,rk3399-saradc";
reg = <0x0 0xff280000 0x0 0x100>;
@@ -320,6 +543,51 @@
status = "disabled";
};
+ h265e_mmu: iommu@ff330200 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff330200 0 0x100>;
+ interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "h265e_mmu";
+ #iommu-cells = <0>;
+ status = "disabled";
+ };
+
+ vepu_mmu: iommu@ff340800 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff340800 0x0 0x40>;
+ interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "vepu_mmu";
+ #iommu-cells = <0>;
+ status = "disabled";
+ };
+
+ vpu_mmu: iommu@ff350800 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff350800 0x0 0x40>;
+ interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "vpu_mmu";
+ #iommu-cells = <0>;
+ status = "disabled";
+ };
+
+ rkvdec_mmu: iommu@ff360480 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff360480 0x0 0x40>, <0x0 0xff3604c0 0x0 0x40>;
+ interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "rkvdec_mmu";
+ #iommu-cells = <0>;
+ status = "disabled";
+ };
+
+ vop_mmu: iommu@ff373f00 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff373f00 0x0 0x100>;
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "vop_mmu";
+ #iommu-cells = <0>;
+ status = "disabled";
+ };
+
cru: clock-controller@ff440000 {
compatible = "rockchip,rk3328-cru", "rockchip,cru", "syscon";
reg = <0x0 0xff440000 0x0 0x1000>;
@@ -372,6 +640,76 @@
<32768>;
};
+ usb2phy_grf: syscon@ff450000 {
+ compatible = "rockchip,rk3328-usb2phy-grf", "syscon",
+ "simple-mfd";
+ reg = <0x0 0xff450000 0x0 0x10000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ u2phy: usb2-phy@100 {
+ compatible = "rockchip,rk3328-usb2phy";
+ reg = <0x100 0x10>;
+ clocks = <&xin24m>;
+ clock-names = "phyclk";
+ clock-output-names = "usb480m_phy";
+ #clock-cells = <0>;
+ assigned-clocks = <&cru USB480M>;
+ assigned-clock-parents = <&u2phy>;
+ status = "disabled";
+
+ u2phy_otg: otg-port {
+ #phy-cells = <0>;
+ interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "otg-bvalid", "otg-id",
+ "linestate";
+ status = "disabled";
+ };
+
+ u2phy_host: host-port {
+ #phy-cells = <0>;
+ interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "linestate";
+ status = "disabled";
+ };
+ };
+ };
+
+ sdmmc: dwmmc@ff500000 {
+ compatible = "rockchip,rk3328-dw-mshc", "rockchip,rk3288-dw-mshc";
+ reg = <0x0 0xff500000 0x0 0x4000>;
+ interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_SDMMC>, <&cru SCLK_SDMMC>,
+ <&cru SCLK_SDMMC_DRV>, <&cru SCLK_SDMMC_SAMPLE>;
+ clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
+ fifo-depth = <0x100>;
+ status = "disabled";
+ };
+
+ sdio: dwmmc@ff510000 {
+ compatible = "rockchip,rk3328-dw-mshc", "rockchip,rk3288-dw-mshc";
+ reg = <0x0 0xff510000 0x0 0x4000>;
+ interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_SDIO>, <&cru SCLK_SDIO>,
+ <&cru SCLK_SDIO_DRV>, <&cru SCLK_SDIO_SAMPLE>;
+ clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
+ fifo-depth = <0x100>;
+ status = "disabled";
+ };
+
+ emmc: dwmmc@ff520000 {
+ compatible = "rockchip,rk3328-dw-mshc", "rockchip,rk3288-dw-mshc";
+ reg = <0x0 0xff520000 0x0 0x4000>;
+ interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_EMMC>, <&cru SCLK_EMMC>,
+ <&cru SCLK_EMMC_DRV>, <&cru SCLK_EMMC_SAMPLE>;
+ clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
+ fifo-depth = <0x100>;
+ status = "disabled";
+ };
+
gmac2io: ethernet@ff540000 {
compatible = "rockchip,rk3328-gmac";
reg = <0x0 0xff540000 0x0 0x10000>;
@@ -391,6 +729,82 @@
status = "disabled";
};
+ gmac2phy: ethernet@ff550000 {
+ compatible = "rockchip,rk3328-gmac";
+ reg = <0x0 0xff550000 0x0 0x10000>;
+ rockchip,grf = <&grf>;
+ interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "macirq";
+ clocks = <&cru SCLK_MAC2PHY_SRC>, <&cru SCLK_MAC2PHY_RXTX>,
+ <&cru SCLK_MAC2PHY_RXTX>, <&cru SCLK_MAC2PHY_REF>,
+ <&cru ACLK_MAC2PHY>, <&cru PCLK_MAC2PHY>,
+ <&cru SCLK_MAC2PHY_OUT>;
+ clock-names = "stmmaceth", "mac_clk_rx",
+ "mac_clk_tx", "clk_mac_ref",
+ "aclk_mac", "pclk_mac",
+ "clk_macphy";
+ resets = <&cru SRST_GMAC2PHY_A>, <&cru SRST_MACPHY>;
+ reset-names = "stmmaceth", "mac-phy";
+ phy-mode = "rmii";
+ phy-handle = <&phy>;
+ status = "disabled";
+
+ mdio {
+ compatible = "snps,dwmac-mdio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ phy: phy@0 {
+ compatible = "ethernet-phy-id1234.d400", "ethernet-phy-ieee802.3-c22";
+ reg = <0>;
+ clocks = <&cru SCLK_MAC2PHY_OUT>;
+ resets = <&cru SRST_MACPHY>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&fephyled_rxm1 &fephyled_linkm1>;
+ phy-is-integrated;
+ };
+ };
+ };
+
+ usb20_otg: usb@ff580000 {
+ compatible = "rockchip,rk3328-usb", "rockchip,rk3066-usb",
+ "snps,dwc2";
+ reg = <0x0 0xff580000 0x0 0x40000>;
+ interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_OTG>;
+ clock-names = "otg";
+ dr_mode = "otg";
+ g-np-tx-fifo-size = <16>;
+ g-rx-fifo-size = <280>;
+ g-tx-fifo-size = <256 128 128 64 32 16>;
+ g-use-dma;
+ phys = <&u2phy_otg>;
+ phy-names = "usb2-phy";
+ status = "disabled";
+ };
+
+ usb_host0_ehci: usb@ff5c0000 {
+ compatible = "generic-ehci";
+ reg = <0x0 0xff5c0000 0x0 0x10000>;
+ interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_HOST0>, <&u2phy>;
+ clock-names = "usbhost", "utmi";
+ phys = <&u2phy_host>;
+ phy-names = "usb";
+ status = "disabled";
+ };
+
+ usb_host0_ohci: usb@ff5d0000 {
+ compatible = "generic-ohci";
+ reg = <0x0 0xff5d0000 0x0 0x10000>;
+ interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_HOST0>, <&u2phy>;
+ clock-names = "usbhost", "utmi";
+ phys = <&u2phy_host>;
+ phy-names = "usb";
+ status = "disabled";
+ };
+
gic: interrupt-controller@ff811000 {
compatible = "arm,gic-400";
#interrupt-cells = <3>;
@@ -577,6 +991,62 @@
};
};
+ pdm-0 {
+ pdmm0_clk: pdmm0-clk {
+ rockchip,pins = <2 RK_PC2 2 &pcfg_pull_none>;
+ };
+
+ pdmm0_fsync: pdmm0-fsync {
+ rockchip,pins = <2 RK_PC7 2 &pcfg_pull_none>;
+ };
+
+ pdmm0_sdi0: pdmm0-sdi0 {
+ rockchip,pins = <2 RK_PC3 2 &pcfg_pull_none>;
+ };
+
+ pdmm0_sdi1: pdmm0-sdi1 {
+ rockchip,pins = <2 RK_PC4 2 &pcfg_pull_none>;
+ };
+
+ pdmm0_sdi2: pdmm0-sdi2 {
+ rockchip,pins = <2 RK_PC5 2 &pcfg_pull_none>;
+ };
+
+ pdmm0_sdi3: pdmm0-sdi3 {
+ rockchip,pins = <2 RK_PC6 2 &pcfg_pull_none>;
+ };
+
+ pdmm0_clk_sleep: pdmm0-clk-sleep {
+ rockchip,pins =
+ <2 RK_PC2 RK_FUNC_GPIO &pcfg_input_high>;
+ };
+
+ pdmm0_sdi0_sleep: pdmm0-sdi0-sleep {
+ rockchip,pins =
+ <2 RK_PC3 RK_FUNC_GPIO &pcfg_input_high>;
+ };
+
+ pdmm0_sdi1_sleep: pdmm0-sdi1-sleep {
+ rockchip,pins =
+ <2 RK_PC4 RK_FUNC_GPIO &pcfg_input_high>;
+ };
+
+ pdmm0_sdi2_sleep: pdmm0-sdi2-sleep {
+ rockchip,pins =
+ <2 RK_PC5 RK_FUNC_GPIO &pcfg_input_high>;
+ };
+
+ pdmm0_sdi3_sleep: pdmm0-sdi3-sleep {
+ rockchip,pins =
+ <2 RK_PC6 RK_FUNC_GPIO &pcfg_input_high>;
+ };
+
+ pdmm0_fsync_sleep: pdmm0-fsync-sleep {
+ rockchip,pins =
+ <2 RK_PC7 RK_FUNC_GPIO &pcfg_input_high>;
+ };
+ };
+
tsadc {
otp_gpio: otp-gpio {
rockchip,pins = <2 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>;
diff --git a/arch/arm64/boot/dts/rockchip/rk3368-evb.dtsi b/arch/arm64/boot/dts/rockchip/rk3368-evb.dtsi
index 4772917c5f7e..a37220a9387c 100644
--- a/arch/arm64/boot/dts/rockchip/rk3368-evb.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3368-evb.dtsi
@@ -156,7 +156,6 @@
disable-wp;
mmc-pwrseq = <&emmc_pwrseq>;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;
status = "okay";
diff --git a/arch/arm64/boot/dts/rockchip/rk3368-geekbox.dts b/arch/arm64/boot/dts/rockchip/rk3368-geekbox.dts
index e631d424f08e..5e4d3a7015f5 100644
--- a/arch/arm64/boot/dts/rockchip/rk3368-geekbox.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3368-geekbox.dts
@@ -117,7 +117,6 @@
clock-frequency = <150000000>;
disable-wp;
non-removable;
- num-slots = <1>;
vmmc-supply = <&vcc_io>;
vqmmc-supply = <&vcc18_flash>;
pinctrl-names = "default";
diff --git a/arch/arm64/boot/dts/rockchip/rk3368-orion-r68-meta.dts b/arch/arm64/boot/dts/rockchip/rk3368-orion-r68-meta.dts
index fac116acc12f..d3f6c8e0d206 100644
--- a/arch/arm64/boot/dts/rockchip/rk3368-orion-r68-meta.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3368-orion-r68-meta.dts
@@ -203,7 +203,6 @@
mmc-hs200-1_2v;
mmc-hs200-1_8v;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;
status = "okay";
@@ -347,7 +346,6 @@
max-frequency = <50000000>;
cap-sd-highspeed;
card-detect-delay = <200>;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
vmmc-supply = <&vcc_sd>;
diff --git a/arch/arm64/boot/dts/rockchip/rk3368-px5-evb.dts b/arch/arm64/boot/dts/rockchip/rk3368-px5-evb.dts
index ff48edd8e348..13a9e22f5d2d 100644
--- a/arch/arm64/boot/dts/rockchip/rk3368-px5-evb.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3368-px5-evb.dts
@@ -86,12 +86,10 @@
cap-mmc-highspeed;
clock-frequency = <150000000>;
disable-wp;
- keep-power-in-suspend;
mmc-hs200-1_8v;
no-sdio;
no-sd;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_clk>, <&emmc_cmd>, <&emmc_bus8>;
vmmc-supply = <&vcc_io>;
@@ -281,7 +279,6 @@
card-detect-delay = <200>;
no-emmc;
no-sdio;
- num-slots = <1>;
sd-uhs-sdr12;
sd-uhs-sdr25;
pinctrl-names = "default";
diff --git a/arch/arm64/boot/dts/rockchip/rk3368-r88.dts b/arch/arm64/boot/dts/rockchip/rk3368-r88.dts
index 7134181f1dc2..b3510d56517a 100644
--- a/arch/arm64/boot/dts/rockchip/rk3368-r88.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3368-r88.dts
@@ -189,7 +189,6 @@
disable-wp;
mmc-pwrseq = <&emmc_pwrseq>;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;
status = "okay";
@@ -254,7 +253,6 @@
keep-power-in-suspend;
mmc-pwrseq = <&sdio_pwrseq>;
non-removable;
- num-slots = <1>;
pinctrl-names = "default";
pinctrl-0 = <&sdio0_clk &sdio0_cmd &sdio0_bus4>;
vmmc-supply = <&vcc_io>;
diff --git a/arch/arm64/boot/dts/rockchip/rk3368.dtsi b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
index 6d5dc0587e59..1070c8264c13 100644
--- a/arch/arm64/boot/dts/rockchip/rk3368.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
@@ -700,6 +700,19 @@
interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>;
};
+ spdif: spdif@ff880000 {
+ compatible = "rockchip,rk3368-spdif";
+ reg = <0x0 0xff880000 0x0 0x1000>;
+ interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_SPDIF_8CH>, <&cru HCLK_SPDIF>;
+ clock-names = "mclk", "hclk";
+ dmas = <&dmac_bus 3>;
+ dma-names = "tx";
+ pinctrl-names = "default";
+ pinctrl-0 = <&spdif_tx>;
+ status = "disabled";
+ };
+
i2s_2ch: i2s-2ch@ff890000 {
compatible = "rockchip,rk3368-i2s", "rockchip,rk3066-i2s";
reg = <0x0 0xff890000 0x0 0x1000>;
@@ -724,6 +737,55 @@
status = "disabled";
};
+ iep_mmu: iommu@ff900800 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff900800 0x0 0x100>;
+ interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "iep_mmu";
+ #iommu-cells = <0>;
+ status = "disabled";
+ };
+
+ isp_mmu: iommu@ff914000 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff914000 0x0 0x100>,
+ <0x0 0xff915000 0x0 0x100>;
+ interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "isp_mmu";
+ #iommu-cells = <0>;
+ rockchip,disable-mmu-reset;
+ status = "disabled";
+ };
+
+ vop_mmu: iommu@ff930300 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff930300 0x0 0x100>;
+ interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "vop_mmu";
+ #iommu-cells = <0>;
+ status = "disabled";
+ };
+
+ hevc_mmu: iommu@ff9a0440 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff9a0440 0x0 0x40>,
+ <0x0 0xff9a0480 0x0 0x40>;
+ interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "hevc_mmu";
+ #iommu-cells = <0>;
+ status = "disabled";
+ };
+
+ vpu_mmu: iommu@ff9a0800 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff9a0800 0x0 0x100>;
+ interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "vepu_mmu", "vdpu_mmu";
+ #iommu-cells = <0>;
+ status = "disabled";
+ };
+
gic: interrupt-controller@ffb71000 {
compatible = "arm,gic-400";
interrupt-controller;
@@ -1024,6 +1086,12 @@
};
};
+ spdif {
+ spdif_tx: spdif-tx {
+ rockchip,pins = <2 RK_PC7 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
spi0 {
spi0_clk: spi0-clk {
rockchip,pins = <1 29 RK_FUNC_2 &pcfg_pull_up>;
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-evb.dts b/arch/arm64/boot/dts/rockchip/rk3399-evb.dts
index 42033bcc614c..56533c344ef2 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-evb.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-evb.dts
@@ -199,7 +199,7 @@
ep-gpios = <&gpio3 RK_PB5 GPIO_ACTIVE_HIGH>;
num-lanes = <4>;
pinctrl-names = "default";
- pinctrl-0 = <&pcie_clkreqn>;
+ pinctrl-0 = <&pcie_clkreqn_cpm>;
status = "disabled";
};
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
new file mode 100644
index 000000000000..fef82274a39d
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
@@ -0,0 +1,730 @@
+/*
+ * Copyright (c) 2017 Fuzhou Rockchip Electronics Co., Ltd.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include <dt-bindings/pwm/pwm.h>
+#include "rk3399.dtsi"
+#include "rk3399-opp.dtsi"
+
+/ {
+ model = "Firefly-RK3399 Board";
+ compatible = "firefly,firefly-rk3399", "rockchip,rk3399";
+
+ backlight: backlight {
+ compatible = "pwm-backlight";
+ enable-gpios = <&gpio1 RK_PB5 GPIO_ACTIVE_HIGH>;
+ pwms = <&pwm0 0 25000 0>;
+ brightness-levels = <
+ 0 1 2 3 4 5 6 7
+ 8 9 10 11 12 13 14 15
+ 16 17 18 19 20 21 22 23
+ 24 25 26 27 28 29 30 31
+ 32 33 34 35 36 37 38 39
+ 40 41 42 43 44 45 46 47
+ 48 49 50 51 52 53 54 55
+ 56 57 58 59 60 61 62 63
+ 64 65 66 67 68 69 70 71
+ 72 73 74 75 76 77 78 79
+ 80 81 82 83 84 85 86 87
+ 88 89 90 91 92 93 94 95
+ 96 97 98 99 100 101 102 103
+ 104 105 106 107 108 109 110 111
+ 112 113 114 115 116 117 118 119
+ 120 121 122 123 124 125 126 127
+ 128 129 130 131 132 133 134 135
+ 136 137 138 139 140 141 142 143
+ 144 145 146 147 148 149 150 151
+ 152 153 154 155 156 157 158 159
+ 160 161 162 163 164 165 166 167
+ 168 169 170 171 172 173 174 175
+ 176 177 178 179 180 181 182 183
+ 184 185 186 187 188 189 190 191
+ 192 193 194 195 196 197 198 199
+ 200 201 202 203 204 205 206 207
+ 208 209 210 211 212 213 214 215
+ 216 217 218 219 220 221 222 223
+ 224 225 226 227 228 229 230 231
+ 232 233 234 235 236 237 238 239
+ 240 241 242 243 244 245 246 247
+ 248 249 250 251 252 253 254 255>;
+ default-brightness-level = <200>;
+ };
+
+ clkin_gmac: external-gmac-clock {
+ compatible = "fixed-clock";
+ clock-frequency = <125000000>;
+ clock-output-names = "clkin_gmac";
+ #clock-cells = <0>;
+ };
+
+ dc_12v: dc-12v {
+ compatible = "regulator-fixed";
+ regulator-name = "dc_12v";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <12000000>;
+ regulator-max-microvolt = <12000000>;
+ };
+
+ rt5640-sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "rockchip,rt5640-codec";
+ simple-audio-card,format = "i2s";
+ simple-audio-card,mclk-fs = <256>;
+ simple-audio-card,widgets =
+ "Microphone", "Mic Jack",
+ "Headphone", "Headphone Jack";
+ simple-audio-card,routing =
+ "Mic Jack", "MICBIAS1",
+ "IN1P", "Mic Jack",
+ "Headphone Jack", "HPOL",
+ "Headphone Jack", "HPOR";
+
+ simple-audio-card,cpu {
+ sound-dai = <&i2s1>;
+ };
+
+ simple-audio-card,codec {
+ sound-dai = <&rt5640>;
+ };
+ };
+
+ sdio_pwrseq: sdio-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ clocks = <&rk808 1>;
+ clock-names = "ext_clock";
+ pinctrl-names = "default";
+ pinctrl-0 = <&wifi_enable_h>;
+
+ /*
+ * On the module itself this is one of these (depending
+ * on the actual card populated):
+ * - SDIO_RESET_L_WL_REG_ON
+ * - PDN (power down when low)
+ */
+ reset-gpios = <&gpio0 RK_PB2 GPIO_ACTIVE_LOW>;
+ };
+
+ /* switched by pmic_sleep */
+ vcc1v8_s3: vcca1v8_s3: vcc1v8-s3 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc1v8_s3";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ vin-supply = <&vcc_1v8>;
+ };
+
+ vcc3v3_pcie: vcc3v3-pcie-regulator {
+ compatible = "regulator-fixed";
+ enable-active-high;
+ gpio = <&gpio1 RK_PC1 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pcie_pwr_en>;
+ regulator-name = "vcc3v3_pcie";
+ regulator-always-on;
+ regulator-boot-on;
+ vin-supply = <&dc_12v>;
+ };
+
+ vcc3v3_sys: vcc3v3-sys {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc3v3_sys";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ vin-supply = <&vcc_sys>;
+ };
+
+ /* Actually 3 regulators (host0, 1, 2) controlled by the same gpio */
+ vcc5v0_host: vcc5v0-host-regulator {
+ compatible = "regulator-fixed";
+ enable-active-high;
+ gpio = <&gpio1 RK_PA0 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&vcc5v0_host_en>;
+ regulator-name = "vcc5v0_host";
+ regulator-always-on;
+ vin-supply = <&vcc_sys>;
+ };
+
+ vcc_sys: vcc-sys {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc_sys";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ vin-supply = <&dc_12v>;
+ };
+
+ vdd_log: vdd-log {
+ compatible = "pwm-regulator";
+ pwms = <&pwm2 0 25000 1>;
+ regulator-name = "vdd_log";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <1400000>;
+ vin-supply = <&vcc_sys>;
+ };
+};
+
+&cpu_l0 {
+ cpu-supply = <&vdd_cpu_l>;
+};
+
+&cpu_l1 {
+ cpu-supply = <&vdd_cpu_l>;
+};
+
+&cpu_l2 {
+ cpu-supply = <&vdd_cpu_l>;
+};
+
+&cpu_l3 {
+ cpu-supply = <&vdd_cpu_l>;
+};
+
+&cpu_b0 {
+ cpu-supply = <&vdd_cpu_b>;
+};
+
+&cpu_b1 {
+ cpu-supply = <&vdd_cpu_b>;
+};
+
+&emmc_phy {
+ status = "okay";
+};
+
+&gmac {
+ assigned-clocks = <&cru SCLK_RMII_SRC>;
+ assigned-clock-parents = <&clkin_gmac>;
+ clock_in_out = "input";
+ phy-supply = <&vcc_lan>;
+ phy-mode = "rgmii";
+ pinctrl-names = "default";
+ pinctrl-0 = <&rgmii_pins>;
+ snps,reset-gpio = <&gpio3 RK_PB7 GPIO_ACTIVE_LOW>;
+ snps,reset-active-low;
+ snps,reset-delays-us = <0 10000 50000>;
+ tx_delay = <0x28>;
+ rx_delay = <0x11>;
+ status = "okay";
+};
+
+&i2c0 {
+ clock-frequency = <400000>;
+ i2c-scl-rising-time-ns = <168>;
+ i2c-scl-falling-time-ns = <4>;
+ status = "okay";
+
+ rk808: pmic@1b {
+ compatible = "rockchip,rk808";
+ reg = <0x1b>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <21 IRQ_TYPE_LEVEL_LOW>;
+ #clock-cells = <1>;
+ clock-output-names = "xin32k", "rk808-clkout2";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pmic_int_l>;
+ rockchip,system-power-controller;
+ wakeup-source;
+
+ vcc1-supply = <&vcc_sys>;
+ vcc2-supply = <&vcc_sys>;
+ vcc3-supply = <&vcc_sys>;
+ vcc4-supply = <&vcc_sys>;
+ vcc6-supply = <&vcc_sys>;
+ vcc7-supply = <&vcc_sys>;
+ vcc8-supply = <&vcc3v3_sys>;
+ vcc9-supply = <&vcc_sys>;
+ vcc10-supply = <&vcc_sys>;
+ vcc11-supply = <&vcc_sys>;
+ vcc12-supply = <&vcc3v3_sys>;
+ vddio-supply = <&vcc1v8_pmu>;
+
+ regulators {
+ vdd_center: DCDC_REG1 {
+ regulator-name = "vdd_center";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <750000>;
+ regulator-max-microvolt = <1350000>;
+ regulator-ramp-delay = <6001>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vdd_cpu_l: DCDC_REG2 {
+ regulator-name = "vdd_cpu_l";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <750000>;
+ regulator-max-microvolt = <1350000>;
+ regulator-ramp-delay = <6001>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc_ddr: DCDC_REG3 {
+ regulator-name = "vcc_ddr";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
+ };
+
+ vcc_1v8: DCDC_REG4 {
+ regulator-name = "vcc_1v8";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1800000>;
+ };
+ };
+
+ vcc1v8_dvp: LDO_REG1 {
+ regulator-name = "vcc1v8_dvp";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc2v8_dvp: LDO_REG2 {
+ regulator-name = "vcc2v8_dvp";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc1v8_pmu: LDO_REG3 {
+ regulator-name = "vcc1v8_pmu";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1800000>;
+ };
+ };
+
+ vcc_sdio: LDO_REG4 {
+ regulator-name = "vcc_sdio";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <3000000>;
+ };
+ };
+
+ vcca3v0_codec: LDO_REG5 {
+ regulator-name = "vcca3v0_codec";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc_1v5: LDO_REG6 {
+ regulator-name = "vcc_1v5";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1500000>;
+ };
+ };
+
+ vcca1v8_codec: LDO_REG7 {
+ regulator-name = "vcca1v8_codec";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc_3v0: LDO_REG8 {
+ regulator-name = "vcc_3v0";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <3000000>;
+ };
+ };
+
+ vcc3v3_s3: vcc_lan: SWITCH_REG1 {
+ regulator-name = "vcc3v3_s3";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc3v3_s0: SWITCH_REG2 {
+ regulator-name = "vcc3v3_s0";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+ };
+ };
+
+ vdd_cpu_b: regulator@40 {
+ compatible = "silergy,syr827";
+ reg = <0x40>;
+ fcs,suspend-voltage-selector = <0>;
+ regulator-name = "vdd_cpu_b";
+ regulator-min-microvolt = <712500>;
+ regulator-max-microvolt = <1500000>;
+ regulator-ramp-delay = <1000>;
+ regulator-always-on;
+ regulator-boot-on;
+ vin-supply = <&vcc_sys>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vdd_gpu: regulator@41 {
+ compatible = "silergy,syr828";
+ reg = <0x41>;
+ fcs,suspend-voltage-selector = <1>;
+ regulator-name = "vdd_gpu";
+ regulator-min-microvolt = <712500>;
+ regulator-max-microvolt = <1500000>;
+ regulator-ramp-delay = <1000>;
+ regulator-always-on;
+ regulator-boot-on;
+ vin-supply = <&vcc_sys>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+};
+
+&i2c1 {
+ i2c-scl-rising-time-ns = <300>;
+ i2c-scl-falling-time-ns = <15>;
+ status = "okay";
+
+ rt5640: rt5640@1c {
+ compatible = "realtek,rt5640";
+ reg = <0x1c>;
+ clocks = <&cru SCLK_I2S_8CH_OUT>;
+ clock-names = "mclk";
+ realtek,in1-differential;
+ #sound-dai-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&rt5640_hpcon>;
+ };
+};
+
+&i2c3 {
+ i2c-scl-rising-time-ns = <450>;
+ i2c-scl-falling-time-ns = <15>;
+ status = "okay";
+};
+
+&i2c4 {
+ i2c-scl-rising-time-ns = <600>;
+ i2c-scl-falling-time-ns = <20>;
+ status = "okay";
+
+ accelerometer@68 {
+ compatible = "invensense,mpu6500";
+ reg = <0x68>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <RK_PC6 IRQ_TYPE_EDGE_RISING>;
+ };
+};
+
+&i2s0 {
+ rockchip,playback-channels = <8>;
+ rockchip,capture-channels = <8>;
+ #sound-dai-cells = <0>;
+ status = "okay";
+};
+
+&i2s1 {
+ rockchip,playback-channels = <2>;
+ rockchip,capture-channels = <2>;
+ #sound-dai-cells = <0>;
+ status = "okay";
+};
+
+&i2s2 {
+ #sound-dai-cells = <0>;
+ status = "okay";
+};
+
+&io_domains {
+ status = "okay";
+
+ bt656-supply = <&vcc1v8_dvp>;
+ audio-supply = <&vcca1v8_codec>;
+ sdmmc-supply = <&vcc_sdio>;
+ gpio1830-supply = <&vcc_3v0>;
+};
+
+&pcie_phy {
+ status = "okay";
+};
+
+&pcie0 {
+ ep-gpios = <&gpio4 RK_PD1 GPIO_ACTIVE_HIGH>;
+ num-lanes = <4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pcie_clkreqn_cpm>;
+ status = "okay";
+};
+
+&pmu_io_domains {
+ pmu1830-supply = <&vcc_3v0>;
+ status = "okay";
+};
+
+&pinctrl {
+ buttons {
+ pwrbtn: pwrbtn {
+ rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>;
+ };
+ };
+
+ lcd-panel {
+ lcd_panel_reset: lcd-panel-reset {
+ rockchip,pins = <4 RK_PD6 RK_FUNC_GPIO &pcfg_pull_up>;
+ };
+ };
+
+ pcie {
+ pcie_pwr_en: pcie-pwr-en {
+ rockchip,pins = <1 RK_PC1 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+
+ pcie_3g_drv: pcie-3g-drv {
+ rockchip,pins = <0 RK_PA2 RK_FUNC_GPIO &pcfg_pull_up>;
+ };
+ };
+
+ pmic {
+ vsel1_gpio: vsel1-gpio {
+ rockchip,pins = <1 RK_PC2 RK_FUNC_GPIO &pcfg_pull_down>;
+ };
+
+ vsel2_gpio: vsel2-gpio {
+ rockchip,pins = <1 RK_PB6 RK_FUNC_GPIO &pcfg_pull_down>;
+ };
+ };
+
+ sdio-pwrseq {
+ wifi_enable_h: wifi-enable-h {
+ rockchip,pins = <0 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ rt5640 {
+ rt5640_hpcon: rt5640-hpcon {
+ rockchip,pins = <4 RK_PC5 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ pmic {
+ pmic_int_l: pmic-int-l {
+ rockchip,pins = <1 RK_PC5 RK_FUNC_GPIO &pcfg_pull_up>;
+ };
+ };
+
+ usb2 {
+ vcc5v0_host_en: vcc5v0-host-en {
+ rockchip,pins = <1 RK_PA0 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+};
+
+&pwm0 {
+ status = "okay";
+};
+
+&pwm2 {
+ status = "okay";
+};
+
+&saradc {
+ vref-supply = <&vcca1v8_s3>;
+ status = "okay";
+};
+
+&sdmmc {
+ bus-width = <4>;
+ cap-mmc-highspeed;
+ cap-sd-highspeed;
+ cd-gpios = <&gpio0 7 GPIO_ACTIVE_LOW>;
+ disable-wp;
+ max-frequency = <150000000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_bus4>;
+ status = "okay";
+};
+
+&sdhci {
+ bus-width = <8>;
+ mmc-hs400-1_8v;
+ mmc-hs400-enhanced-strobe;
+ non-removable;
+ status = "okay";
+};
+
+&tsadc {
+ /* tshut mode 0:CRU 1:GPIO */
+ rockchip,hw-tshut-mode = <1>;
+ /* tshut polarity 0:LOW 1:HIGH */
+ rockchip,hw-tshut-polarity = <1>;
+ status = "okay";
+};
+
+&u2phy0 {
+ status = "okay";
+
+ u2phy0_otg: otg-port {
+ status = "okay";
+ };
+
+ u2phy0_host: host-port {
+ phy-supply = <&vcc5v0_host>;
+ status = "okay";
+ };
+};
+
+&u2phy1 {
+ status = "okay";
+
+ u2phy1_otg: otg-port {
+ status = "okay";
+ };
+
+ u2phy1_host: host-port {
+ phy-supply = <&vcc5v0_host>;
+ status = "okay";
+ };
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_xfer &uart0_cts>;
+ status = "okay";
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&usb_host0_ehci {
+ status = "okay";
+};
+
+&usb_host0_ohci {
+ status = "okay";
+};
+
+&usb_host1_ehci {
+ status = "okay";
+};
+
+&usb_host1_ohci {
+ status = "okay";
+};
+
+&usbdrd3_0 {
+ status = "okay";
+};
+
+&usbdrd_dwc3_0 {
+ status = "okay";
+ dr_mode = "otg";
+};
+
+&usbdrd3_1 {
+ status = "okay";
+};
+
+&usbdrd_dwc3_1 {
+ status = "okay";
+ dr_mode = "host";
+};
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts b/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts
index 7bd31066399b..a3d3cea7dc4f 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts
@@ -264,6 +264,50 @@ ap_i2c_dig: &i2c2 {
};
};
+&ppvar_bigcpu_pwm {
+ regulator-min-microvolt = <798674>;
+ regulator-max-microvolt = <1302172>;
+};
+
+&ppvar_bigcpu {
+ regulator-min-microvolt = <798674>;
+ regulator-max-microvolt = <1302172>;
+ ctrl-voltage-range = <798674 1302172>;
+};
+
+&ppvar_litcpu_pwm {
+ regulator-min-microvolt = <799065>;
+ regulator-max-microvolt = <1303738>;
+};
+
+&ppvar_litcpu {
+ regulator-min-microvolt = <799065>;
+ regulator-max-microvolt = <1303738>;
+ ctrl-voltage-range = <799065 1303738>;
+};
+
+&ppvar_gpu_pwm {
+ regulator-min-microvolt = <785782>;
+ regulator-max-microvolt = <1217729>;
+};
+
+&ppvar_gpu {
+ regulator-min-microvolt = <785782>;
+ regulator-max-microvolt = <1217729>;
+ ctrl-voltage-range = <785782 1217729>;
+};
+
+&ppvar_centerlogic_pwm {
+ regulator-min-microvolt = <800069>;
+ regulator-max-microvolt = <1049692>;
+};
+
+&ppvar_centerlogic {
+ regulator-min-microvolt = <800069>;
+ regulator-max-microvolt = <1049692>;
+ ctrl-voltage-range = <800069 1049692>;
+};
+
&saradc {
status = "okay";
vref-supply = <&pp1800_ap_io>;
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
index 0d960b7f7625..199a5118b20d 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
@@ -44,7 +44,7 @@
#include <dt-bindings/input/input.h>
#include "rk3399.dtsi"
-#include "rk3399-opp.dtsi"
+#include "rk3399-op1-opp.dtsi"
/ {
chosen {
@@ -164,14 +164,9 @@
vin-supply = <&ppvar_sys>;
};
- ppvar_bigcpu: ppvar-bigcpu {
+ ppvar_bigcpu_pwm: ppvar-bigcpu-pwm {
compatible = "pwm-regulator";
- regulator-name = "ppvar_bigcpu";
- /*
- * OVP circuit requires special handling which is not yet
- * represented. Keep disabled for now.
- */
- status = "disabled";
+ regulator-name = "ppvar_bigcpu_pwm";
pwms = <&pwm1 0 3337 0>;
pwm-supply = <&ppvar_sys>;
@@ -181,18 +176,28 @@
/* EC turns on w/ ap_core_en; always on for AP */
regulator-always-on;
regulator-boot-on;
- regulator-min-microvolt = <798674>;
- regulator-max-microvolt = <1302172>;
+ regulator-min-microvolt = <800107>;
+ regulator-max-microvolt = <1302232>;
};
- ppvar_litcpu: ppvar-litcpu {
+ ppvar_bigcpu: ppvar-bigcpu {
+ compatible = "vctrl-regulator";
+ regulator-name = "ppvar_bigcpu";
+
+ regulator-min-microvolt = <800107>;
+ regulator-max-microvolt = <1302232>;
+
+ ctrl-supply = <&ppvar_bigcpu_pwm>;
+ ctrl-voltage-range = <800107 1302232>;
+
+ regulator-settling-time-up-us = <322>;
+ min-slew-down-rate = <225>;
+ ovp-threshold-percent = <16>;
+ };
+
+ ppvar_litcpu_pwm: ppvar-litcpu-pwm {
compatible = "pwm-regulator";
- regulator-name = "ppvar_litcpu";
- /*
- * OVP circuit requires special handling which is not yet
- * represented. Keep disabled for now.
- */
- status = "disabled";
+ regulator-name = "ppvar_litcpu_pwm";
pwms = <&pwm2 0 3337 0>;
pwm-supply = <&ppvar_sys>;
@@ -202,18 +207,28 @@
/* EC turns on w/ ap_core_en; always on for AP */
regulator-always-on;
regulator-boot-on;
- regulator-min-microvolt = <799065>;
- regulator-max-microvolt = <1303738>;
+ regulator-min-microvolt = <797743>;
+ regulator-max-microvolt = <1307837>;
};
- ppvar_gpu: ppvar-gpu {
+ ppvar_litcpu: ppvar-litcpu {
+ compatible = "vctrl-regulator";
+ regulator-name = "ppvar_litcpu";
+
+ regulator-min-microvolt = <797743>;
+ regulator-max-microvolt = <1307837>;
+
+ ctrl-supply = <&ppvar_litcpu_pwm>;
+ ctrl-voltage-range = <797743 1307837>;
+
+ regulator-settling-time-up-us = <384>;
+ min-slew-down-rate = <225>;
+ ovp-threshold-percent = <16>;
+ };
+
+ ppvar_gpu_pwm: ppvar-gpu-pwm {
compatible = "pwm-regulator";
- regulator-name = "ppvar_gpu";
- /*
- * OVP circuit requires special handling which is not yet
- * represented. Keep disabled for now.
- */
- status = "disabled";
+ regulator-name = "ppvar_gpu_pwm";
pwms = <&pwm0 0 3337 0>;
pwm-supply = <&ppvar_sys>;
@@ -223,18 +238,28 @@
/* EC turns on w/ ap_core_en; always on for AP */
regulator-always-on;
regulator-boot-on;
- regulator-min-microvolt = <785782>;
- regulator-max-microvolt = <1217729>;
+ regulator-min-microvolt = <786384>;
+ regulator-max-microvolt = <1217747>;
};
- ppvar_centerlogic: ppvar-centerlogic {
+ ppvar_gpu: ppvar-gpu {
+ compatible = "vctrl-regulator";
+ regulator-name = "ppvar_gpu";
+
+ regulator-min-microvolt = <786384>;
+ regulator-max-microvolt = <1217747>;
+
+ ctrl-supply = <&ppvar_gpu_pwm>;
+ ctrl-voltage-range = <786384 1217747>;
+
+ regulator-settling-time-up-us = <390>;
+ min-slew-down-rate = <225>;
+ ovp-threshold-percent = <16>;
+ };
+
+ ppvar_centerlogic_pwm: ppvar-centerlogic-pwm {
compatible = "pwm-regulator";
- regulator-name = "ppvar_centerlogic";
- /*
- * OVP circuit requires special handling which is not yet
- * represented. Keep disabled for now.
- */
- status = "disabled";
+ regulator-name = "ppvar_centerlogic_pwm";
pwms = <&pwm3 0 3337 0>;
pwm-supply = <&ppvar_sys>;
@@ -244,8 +269,23 @@
/* EC turns on w/ ppvar_centerlogic_en; always on for AP */
regulator-always-on;
regulator-boot-on;
- regulator-min-microvolt = <800069>;
- regulator-max-microvolt = <1049692>;
+ regulator-min-microvolt = <799434>;
+ regulator-max-microvolt = <1049925>;
+ };
+
+ ppvar_centerlogic: ppvar-centerlogic {
+ compatible = "vctrl-regulator";
+ regulator-name = "ppvar_centerlogic";
+
+ regulator-min-microvolt = <799434>;
+ regulator-max-microvolt = <1049925>;
+
+ ctrl-supply = <&ppvar_centerlogic_pwm>;
+ ctrl-voltage-range = <799434 1049925>;
+
+ regulator-settling-time-up-us = <378>;
+ min-slew-down-rate = <225>;
+ ovp-threshold-percent = <16>;
};
/* Schematics call this PPVAR even though it's fixed */
@@ -555,6 +595,11 @@
status = "okay";
};
+&gpu {
+ mali-supply = <&ppvar_gpu>;
+ status = "okay";
+};
+
ap_i2c_mic: &i2c1 {
status = "okay";
@@ -567,12 +612,7 @@ ap_i2c_mic: &i2c1 {
headsetcodec: rt5514@57 {
compatible = "realtek,rt5514";
reg = <0x57>;
- interrupt-parent = <&gpio1>;
- interrupts = <13 IRQ_TYPE_LEVEL_HIGH>;
- pinctrl-names = "default";
- pinctrl-0 = <&mic_int>;
- realtek,dmic-init-delay = <20>;
- wakeup-source;
+ realtek,dmic-init-delay-ms = <20>;
};
};
@@ -781,9 +821,13 @@ ap_i2c_audio: &i2c8 {
wacky_spi_audio: spi2@0 {
compatible = "realtek,rt5514";
reg = <0>;
-
+ interrupt-parent = <&gpio1>;
+ interrupts = <13 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&mic_int>;
/* May run faster once verified. */
spi-max-frequency = <10000000>;
+ wakeup-source;
};
};
@@ -1031,7 +1075,7 @@ ap_i2c_audio: &i2c8 {
* hurt and dw_mmc will ignore it. We make sure to disable
* the pull though so we don't burn needless power.
*/
- sdmmc_cd: sdmcc-cd {
+ sdmmc_cd: sdmmc-cd {
rockchip,pins =
<0 7 RK_FUNC_1 &pcfg_pull_none>;
};
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-op1-opp.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-op1-opp.dtsi
new file mode 100644
index 000000000000..d8a120f945c8
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3399-op1-opp.dtsi
@@ -0,0 +1,178 @@
+/*
+ * Copyright (c) 2016-2017 Fuzhou Rockchip Electronics Co., Ltd
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/ {
+ cluster0_opp: opp-table0 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp00 {
+ opp-hz = /bits/ 64 <408000000>;
+ opp-microvolt = <800000>;
+ clock-latency-ns = <40000>;
+ };
+ opp01 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <825000>;
+ };
+ opp02 {
+ opp-hz = /bits/ 64 <816000000>;
+ opp-microvolt = <850000>;
+ };
+ opp03 {
+ opp-hz = /bits/ 64 <1008000000>;
+ opp-microvolt = <900000>;
+ };
+ opp04 {
+ opp-hz = /bits/ 64 <1200000000>;
+ opp-microvolt = <975000>;
+ };
+ opp05 {
+ opp-hz = /bits/ 64 <1416000000>;
+ opp-microvolt = <1100000>;
+ };
+ opp06 {
+ opp-hz = /bits/ 64 <1512000000>;
+ opp-microvolt = <1150000>;
+ };
+ };
+
+ cluster1_opp: opp-table1 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp00 {
+ opp-hz = /bits/ 64 <408000000>;
+ opp-microvolt = <800000>;
+ clock-latency-ns = <40000>;
+ };
+ opp01 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <800000>;
+ };
+ opp02 {
+ opp-hz = /bits/ 64 <816000000>;
+ opp-microvolt = <825000>;
+ };
+ opp03 {
+ opp-hz = /bits/ 64 <1008000000>;
+ opp-microvolt = <850000>;
+ };
+ opp04 {
+ opp-hz = /bits/ 64 <1200000000>;
+ opp-microvolt = <900000>;
+ };
+ opp05 {
+ opp-hz = /bits/ 64 <1416000000>;
+ opp-microvolt = <975000>;
+ };
+ opp06 {
+ opp-hz = /bits/ 64 <1608000000>;
+ opp-microvolt = <1050000>;
+ };
+ opp07 {
+ opp-hz = /bits/ 64 <1800000000>;
+ opp-microvolt = <1150000>;
+ };
+ opp08 {
+ opp-hz = /bits/ 64 <2016000000>;
+ opp-microvolt = <1250000>;
+ };
+ };
+
+ gpu_opp_table: opp-table2 {
+ compatible = "operating-points-v2";
+
+ opp00 {
+ opp-hz = /bits/ 64 <200000000>;
+ opp-microvolt = <800000>;
+ };
+ opp01 {
+ opp-hz = /bits/ 64 <297000000>;
+ opp-microvolt = <800000>;
+ };
+ opp02 {
+ opp-hz = /bits/ 64 <400000000>;
+ opp-microvolt = <825000>;
+ };
+ opp03 {
+ opp-hz = /bits/ 64 <500000000>;
+ opp-microvolt = <850000>;
+ };
+ opp04 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <925000>;
+ };
+ opp05 {
+ opp-hz = /bits/ 64 <800000000>;
+ opp-microvolt = <1075000>;
+ };
+ };
+};
+
+&cpu_l0 {
+ operating-points-v2 = <&cluster0_opp>;
+};
+
+&cpu_l1 {
+ operating-points-v2 = <&cluster0_opp>;
+};
+
+&cpu_l2 {
+ operating-points-v2 = <&cluster0_opp>;
+};
+
+&cpu_l3 {
+ operating-points-v2 = <&cluster0_opp>;
+};
+
+&cpu_b0 {
+ operating-points-v2 = <&cluster1_opp>;
+};
+
+&cpu_b1 {
+ operating-points-v2 = <&cluster1_opp>;
+};
+
+&gpu {
+ operating-points-v2 = <&gpu_opp_table>;
+};
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-opp.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-opp.dtsi
index dd82e16236a8..81617bcf2522 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-opp.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-opp.dtsi
@@ -56,22 +56,18 @@
};
opp02 {
opp-hz = /bits/ 64 <816000000>;
- opp-microvolt = <800000>;
+ opp-microvolt = <850000>;
};
opp03 {
opp-hz = /bits/ 64 <1008000000>;
- opp-microvolt = <875000>;
+ opp-microvolt = <925000>;
};
opp04 {
opp-hz = /bits/ 64 <1200000000>;
- opp-microvolt = <925000>;
+ opp-microvolt = <1000000>;
};
opp05 {
opp-hz = /bits/ 64 <1416000000>;
- opp-microvolt = <1050000>;
- };
- opp06 {
- opp-hz = /bits/ 64 <1512000000>;
opp-microvolt = <1125000>;
};
};
@@ -107,15 +103,40 @@
};
opp06 {
opp-hz = /bits/ 64 <1608000000>;
- opp-microvolt = <1075000>;
+ opp-microvolt = <1100000>;
};
opp07 {
opp-hz = /bits/ 64 <1800000000>;
- opp-microvolt = <1150000>;
+ opp-microvolt = <1200000>;
};
- opp08 {
- opp-hz = /bits/ 64 <2016000000>;
- opp-microvolt = <1250000>;
+ };
+
+ gpu_opp_table: opp-table2 {
+ compatible = "operating-points-v2";
+
+ opp00 {
+ opp-hz = /bits/ 64 <200000000>;
+ opp-microvolt = <800000>;
+ };
+ opp01 {
+ opp-hz = /bits/ 64 <297000000>;
+ opp-microvolt = <800000>;
+ };
+ opp02 {
+ opp-hz = /bits/ 64 <400000000>;
+ opp-microvolt = <825000>;
+ };
+ opp03 {
+ opp-hz = /bits/ 64 <500000000>;
+ opp-microvolt = <875000>;
+ };
+ opp04 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <925000>;
+ };
+ opp05 {
+ opp-hz = /bits/ 64 <800000000>;
+ opp-microvolt = <1100000>;
};
};
};
@@ -143,3 +164,7 @@
&cpu_b1 {
operating-points-v2 = <&cluster1_opp>;
};
+
+&gpu {
+ operating-points-v2 = <&gpu_opp_table>;
+};
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts b/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
new file mode 100644
index 000000000000..9a7486058455
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
@@ -0,0 +1,228 @@
+/*
+ * Copyright (c) 2017 Theobroma Systems Design und Consulting GmbH
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include "rk3399-puma.dtsi"
+
+/ {
+ model = "Theobroma Systems RK3399-Q7 SoM";
+ compatible = "tsd,rk3399-puma-haikou", "rockchip,rk3399";
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ leds {
+ pinctrl-0 = <&led_pin_module>, <&led_sd_haikou>;
+
+ sd-card-led {
+ label = "sd_card_led";
+ gpios = <&gpio1 RK_PA2 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "mmc0";
+ };
+ };
+
+ dc_12v: dc-12v {
+ compatible = "regulator-fixed";
+ regulator-name = "dc_12v";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <12000000>;
+ regulator-max-microvolt = <12000000>;
+ };
+
+ vcc3v3_baseboard: vcc3v3-baseboard {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc3v3_baseboard";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ vin-supply = <&dc_12v>;
+ };
+
+ vcc5v0_otg: vcc5v0-otg-regulator {
+ compatible = "regulator-fixed";
+ enable-active-high;
+ gpio = <&gpio0 RK_PA2 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&otg_vbus_drv>;
+ regulator-name = "vcc5v0_otg";
+ regulator-always-on;
+ };
+};
+
+&i2c1 {
+ status = "okay";
+ clock-frequency = <400000>;
+};
+
+&i2c2 {
+ status = "okay";
+ clock-frequency = <400000>;
+};
+
+&i2c3 {
+ i2c-scl-rising-time-ns = <450>;
+ i2c-scl-falling-time-ns = <15>;
+ status = "okay";
+};
+
+&i2c4 {
+ status = "okay";
+ clock-frequency = <400000>;
+};
+
+&i2c6 {
+ status = "okay";
+ clock-frequency = <400000>;
+};
+
+&i2s0 {
+ status = "okay";
+ rockchip,playback-channels = <8>;
+ rockchip,capture-channels = <8>;
+ #sound-dai-cells = <0>;
+ status = "okay";
+};
+
+&pcie_phy {
+ status = "okay";
+};
+
+&pcie0 {
+ ep-gpios = <&gpio4 RK_PC6 GPIO_ACTIVE_LOW>;
+ num-lanes = <4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pcie_clkreqn_cpm>;
+ status = "okay";
+};
+
+&pinctrl {
+ pinctrl-names = "default";
+ pinctrl-0 = <&haikou_pin_hog>;
+
+ hog {
+ haikou_pin_hog: haikou-pin-hog {
+ rockchip,pins =
+ /* LID_BTN */
+ <RK_GPIO0 RK_PA4 RK_FUNC_GPIO &pcfg_pull_up>,
+ /* BATLOW# */
+ <RK_GPIO0 RK_PB2 RK_FUNC_GPIO &pcfg_pull_up>,
+ /* SLP_BTN# */
+ <RK_GPIO0 RK_PB3 RK_FUNC_GPIO &pcfg_pull_up>,
+ /* BIOS_DISABLE# */
+ <RK_GPIO0 RK_PB1 RK_FUNC_GPIO &pcfg_pull_up>;
+ };
+ };
+
+ leds {
+ led_sd_haikou: led-sd-gpio {
+ rockchip,pins =
+ <RK_GPIO1 RK_PA2 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ usb2 {
+ otg_vbus_drv: otg-vbus-drv {
+ rockchip,pins =
+ <RK_GPIO0 RK_PA2 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+};
+
+&pwm0 {
+ status = "okay";
+};
+
+&sdmmc {
+ bus-width = <4>;
+ cap-mmc-highspeed;
+ cap-sd-highspeed;
+ cd-gpios = <&gpio0 RK_PA7 GPIO_ACTIVE_LOW>;
+ disable-wp;
+ max-frequency = <150000000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
+ vmmc-supply = <&vcc3v3_baseboard>;
+ status = "okay";
+};
+
+&spi5 {
+ status = "okay";
+};
+
+&u2phy0 {
+ status = "okay";
+};
+
+&usbdrd3_0 {
+ status = "okay";
+};
+
+&usbdrd_dwc3_0 {
+ dr_mode = "otg";
+ status = "okay";
+};
+
+&u2phy0_host {
+ phy-supply = <&vcc5v0_otg>;
+ status = "okay";
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_xfer &uart0_cts &uart0_rts>;
+ status = "okay";
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&usb_host0_ehci {
+ status = "okay";
+};
+
+&usb_host0_ohci {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
new file mode 100644
index 000000000000..910628d18add
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
@@ -0,0 +1,547 @@
+/*
+ * Copyright (c) 2017 Theobroma Systems Design und Consulting GmbH
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <dt-bindings/pwm/pwm.h>
+#include "rk3399.dtsi"
+#include "rk3399-opp.dtsi"
+
+/ {
+ leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&led_pin_module>;
+
+ module-led {
+ label = "module_led";
+ gpios = <&gpio2 RK_PD1 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "heartbeat";
+ panic-indicator;
+ };
+ };
+
+ /*
+ * Overwrite the opp-table for CPUB as this board uses a different
+ * regulator (FAN53555) that only allows 10mV steps and therefore
+ * can't reach the operation point target voltages from rk3399-opp.dtsi
+ */
+ /delete-node/ opp-table1;
+ cluster1_opp: opp-table1 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp00 {
+ opp-hz = /bits/ 64 <408000000>;
+ opp-microvolt = <800000>;
+ clock-latency-ns = <40000>;
+ };
+ opp01 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <800000>;
+ };
+ opp02 {
+ opp-hz = /bits/ 64 <816000000>;
+ opp-microvolt = <830000>;
+ opp-suspend;
+ };
+ opp03 {
+ opp-hz = /bits/ 64 <1008000000>;
+ opp-microvolt = <880000>;
+ };
+ opp04 {
+ opp-hz = /bits/ 64 <1200000000>;
+ opp-microvolt = <950000>;
+ };
+ opp05 {
+ opp-hz = /bits/ 64 <1416000000>;
+ opp-microvolt = <1030000>;
+ };
+ opp06 {
+ opp-hz = /bits/ 64 <1608000000>;
+ opp-microvolt = <1100000>;
+ };
+ opp07 {
+ opp-hz = /bits/ 64 <1800000000>;
+ opp-microvolt = <1200000>;
+ };
+ opp08 {
+ opp-hz = /bits/ 64 <1992000000>;
+ opp-microvolt = <1230000>;
+ turbo-mode;
+ };
+ };
+
+ clkin_gmac: external-gmac-clock {
+ compatible = "fixed-clock";
+ clock-frequency = <125000000>;
+ clock-output-names = "clkin_gmac";
+ #clock-cells = <0>;
+ };
+
+ vcc1v2_phy: vcc1v2-phy {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc1v2_phy";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ vin-supply = <&vcc5v0_sys>;
+ };
+
+ vcc3v3_sys: vcc3v3-sys {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc3v3_sys";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ vin-supply = <&vcc5v0_sys>;
+ };
+
+ vcc5v0_host: vcc5v0-host-regulator {
+ compatible = "regulator-fixed";
+ gpio = <&gpio4 RK_PA3 GPIO_ACTIVE_HIGH>;
+ enable-active-low;
+ pinctrl-names = "default";
+ pinctrl-0 = <&vcc5v0_host_en>;
+ regulator-name = "vcc5v0_host";
+ regulator-always-on;
+ vin-supply = <&vcc5v0_sys>;
+ };
+
+ vcc5v0_sys: vcc5v0-sys {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc5v0_sys";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ };
+
+ vdd_log: vdd-log {
+ compatible = "pwm-regulator";
+ pwms = <&pwm2 0 25000 0>;
+ regulator-name = "vdd_log";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-always-on;
+ regulator-boot-on;
+ status = "okay";
+ };
+};
+
+&cpu_b0 {
+ cpu-supply = <&vdd_cpu_b>;
+};
+
+&cpu_b1 {
+ cpu-supply = <&vdd_cpu_b>;
+};
+
+&cpu_l0 {
+ cpu-supply = <&vdd_cpu_l>;
+};
+
+&cpu_l1 {
+ cpu-supply = <&vdd_cpu_l>;
+};
+
+&cpu_l2 {
+ cpu-supply = <&vdd_cpu_l>;
+};
+
+&cpu_l3 {
+ cpu-supply = <&vdd_cpu_l>;
+};
+
+&emmc_phy {
+ status = "okay";
+};
+
+&gmac {
+ assigned-clocks = <&cru SCLK_RMII_SRC>;
+ assigned-clock-parents = <&clkin_gmac>;
+ clock_in_out = "input";
+ phy-supply = <&vcc1v2_phy>;
+ phy-mode = "rgmii";
+ pinctrl-names = "default";
+ pinctrl-0 = <&rgmii_pins>;
+ snps,reset-gpio = <&gpio3 RK_PC0 GPIO_ACTIVE_HIGH>;
+ snps,reset-active-low;
+ snps,reset-delays-us = <0 10000 50000>;
+ tx_delay = <0x10>;
+ rx_delay = <0x10>;
+ status = "okay";
+};
+
+&i2c0 {
+ status = "okay";
+ i2c-scl-rising-time-ns = <168>;
+ i2c-scl-falling-time-ns = <4>;
+ clock-frequency = <400000>;
+
+ rk808: pmic@1b {
+ compatible = "rockchip,rk808";
+ reg = <0x1b>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <22 IRQ_TYPE_LEVEL_LOW>;
+ #clock-cells = <1>;
+ clock-output-names = "xin32k", "rk808-clkout2";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pmic_int_l>;
+ rockchip,system-power-controller;
+ wakeup-source;
+
+ vcc1-supply = <&vcc5v0_sys>;
+ vcc2-supply = <&vcc5v0_sys>;
+ vcc3-supply = <&vcc5v0_sys>;
+ vcc4-supply = <&vcc5v0_sys>;
+ vcc6-supply = <&vcc5v0_sys>;
+ vcc7-supply = <&vcc5v0_sys>;
+ vcc8-supply = <&vcc3v3_sys>;
+ vcc9-supply = <&vcc5v0_sys>;
+ vcc10-supply = <&vcc5v0_sys>;
+ vcc11-supply = <&vcc5v0_sys>;
+ vcc12-supply = <&vcc3v3_sys>;
+ vddio-supply = <&vcc1v8_pmu>;
+
+ regulators {
+ vdd_center: DCDC_REG1 {
+ regulator-name = "vdd_center";
+ regulator-min-microvolt = <750000>;
+ regulator-max-microvolt = <1350000>;
+ regulator-ramp-delay = <6001>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vdd_cpu_l: DCDC_REG2 {
+ regulator-name = "vdd_cpu_l";
+ regulator-min-microvolt = <750000>;
+ regulator-max-microvolt = <1350000>;
+ regulator-ramp-delay = <6001>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc_ddr: DCDC_REG3 {
+ regulator-name = "vcc_ddr";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
+ };
+
+ vcc_1v8: DCDC_REG4 {
+ regulator-name = "vcc_1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1800000>;
+ };
+ };
+
+ vcc_ldo1: LDO_REG1 {
+ regulator-name = "vcc_ldo1";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc1v8_hdmi: LDO_REG2 {
+ regulator-name = "vcc1v8_hdmi";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc1v8_pmu: LDO_REG3 {
+ regulator-name = "vcc1v8_pmu";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1800000>;
+ };
+ };
+
+ vcc_sd: LDO_REG4 {
+ regulator-name = "vcc_sd";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <3000000>;
+ };
+ };
+
+ vcc_ldo5: LDO_REG5 {
+ regulator-name = "vcc_ldo5";
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc_ldo6: LDO_REG6 {
+ regulator-name = "vcc_ldo6";
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc0v9_hdmi: LDO_REG7 {
+ regulator-name = "vcc0v9_hdmi";
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <900000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc_efuse: LDO_REG8 {
+ regulator-name = "vcc_efuse";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc3v3_s3: SWITCH_REG1 {
+ regulator-name = "vcc3v3_s3";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc3v3_s0: SWITCH_REG2 {
+ regulator-name = "vcc3v3_s0";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+ };
+ };
+
+ vdd_gpu: regulator@60 {
+ compatible = "fcs,fan53555";
+ reg = <0x60>;
+ fcs,suspend-voltage-selector = <1>;
+ regulator-name = "vdd_gpu";
+ regulator-min-microvolt = <600000>;
+ regulator-max-microvolt = <1230000>;
+ regulator-ramp-delay = <1000>;
+ regulator-always-on;
+ regulator-boot-on;
+ vin-supply = <&vcc5v0_sys>;
+ };
+};
+
+&i2c7 {
+ status = "okay";
+ clock-frequency = <400000>;
+
+ fan: fan@18 {
+ compatible = "ti,amc6821";
+ reg = <0x18>;
+ cooling-min-state = <0>;
+ cooling-max-state = <9>;
+ #cooling-cells = <2>;
+ };
+
+ rtc_twi: rtc@6f {
+ compatible = "isil,isl1208";
+ reg = <0x6f>;
+ };
+};
+
+&i2c8 {
+ status = "okay";
+ clock-frequency = <400000>;
+
+ vdd_cpu_b: regulator@60 {
+ compatible = "fcs,fan53555";
+ reg = <0x60>;
+ vin-supply = <&vcc5v0_sys>;
+ regulator-name = "vdd_cpu_b";
+ regulator-min-microvolt = <600000>;
+ regulator-max-microvolt = <1230000>;
+ regulator-ramp-delay = <1000>;
+ fcs,suspend-voltage-selector = <1>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+};
+
+&io_domains {
+ status = "okay";
+ bt656-supply = <&vcc_1v8>;
+ audio-supply = <&vcc_1v8>;
+ sdmmc-supply = <&vcc_sd>;
+ gpio1830-supply = <&vcc_1v8>;
+};
+
+&pmu_io_domains {
+ status = "okay";
+ pmu1830-supply = <&vcc_1v8>;
+};
+
+&pwm2 {
+ status = "okay";
+};
+
+&pinctrl {
+ i2c8 {
+ i2c8_xfer_a: i2c8-xfer {
+ rockchip,pins =
+ <RK_GPIO1 RK_PC4 RK_FUNC_1 &pcfg_pull_up>,
+ <RK_GPIO1 RK_PC5 RK_FUNC_1 &pcfg_pull_up>;
+ };
+ };
+
+ leds {
+ led_pin_module: led-module-gpio {
+ rockchip,pins =
+ <RK_GPIO2 RK_PD1 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ pmic {
+ pmic_int_l: pmic-int-l {
+ rockchip,pins =
+ <RK_GPIO1 RK_PC6 RK_FUNC_GPIO &pcfg_pull_up>;
+ };
+ };
+
+ usb2 {
+ vcc5v0_host_en: vcc5v0-host-en {
+ rockchip,pins =
+ <RK_GPIO4 RK_PA3 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+};
+
+&sdhci {
+ bus-width = <8>;
+ mmc-hs400-1_8v;
+ mmc-hs400-enhanced-strobe;
+ non-removable;
+ status = "okay";
+};
+
+&sdmmc {
+ vqmmc = <&vcc_sd>;
+};
+
+&spi1 {
+ status = "okay";
+
+ norflash: flash@0 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <50000000>;
+ };
+};
+
+&u2phy1 {
+ status = "okay";
+
+ u2phy1_otg: otg-port {
+ status = "okay";
+ };
+
+ u2phy1_host: host-port {
+ phy-supply = <&vcc5v0_host>;
+ status = "okay";
+ };
+};
+
+&usbdrd3_1 {
+ status = "okay";
+};
+
+&usbdrd_dwc3_1 {
+ status = "okay";
+ dr_mode = "host";
+};
+
+&usb_host1_ehci {
+ status = "okay";
+};
+
+&usb_host1_ohci {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-sapphire-excavator.dts b/arch/arm64/boot/dts/rockchip/rk3399-sapphire-excavator.dts
new file mode 100644
index 000000000000..b7bd88fb3ae3
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3399-sapphire-excavator.dts
@@ -0,0 +1,240 @@
+/*
+ * Copyright (c) 2017 Fuzhou Rockchip Electronics Co., Ltd.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include <dt-bindings/input/input.h>
+#include "rk3399-sapphire.dtsi"
+
+/ {
+ model = "Excavator-RK3399 Board";
+ compatible = "rockchip,rk3399-sapphire-excavator", "rockchip,rk3399";
+
+ adc-keys {
+ compatible = "adc-keys";
+ io-channels = <&saradc 1>;
+ io-channel-names = "buttons";
+ keyup-threshold-microvolt = <1800000>;
+ poll-interval = <100>;
+
+ button-up {
+ label = "Volume Up";
+ linux,code = <KEY_VOLUMEUP>;
+ press-threshold-microvolt = <100000>;
+ };
+
+ button-down {
+ label = "Volume Down";
+ linux,code = <KEY_VOLUMEDOWN>;
+ press-threshold-microvolt = <300000>;
+ };
+
+ back {
+ label = "Back";
+ linux,code = <KEY_BACK>;
+ press-threshold-microvolt = <985000>;
+ };
+
+ menu {
+ label = "Menu";
+ linux,code = <KEY_MENU>;
+ press-threshold-microvolt = <1314000>;
+ };
+ };
+
+ edp_panel: edp-panel {
+ compatible ="lg,lp079qx1-sp0v", "simple-panel";
+ backlight = <&backlight>;
+ enable-gpios = <&gpio4 RK_PC6 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&lcd_panel_reset>;
+ power-supply = <&vcc3v3_s0>;
+
+ ports {
+ panel_in_edp: endpoint {
+ remote-endpoint = <&edp_out_panel>;
+ };
+ };
+ };
+
+ keys: gpio-keys {
+ compatible = "gpio-keys";
+ autorepeat;
+
+ power {
+ debounce-interval = <100>;
+ gpios = <&gpio0 RK_PA5 GPIO_ACTIVE_LOW>;
+ label = "GPIO Power";
+ linux,code = <KEY_POWER>;
+ linux,input-type = <1>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwr_btn>;
+ wakeup-source;
+ };
+ };
+
+ rt5651-sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "realtek,rt5651-codec";
+ simple-audio-card,format = "i2s";
+ simple-audio-card,mclk-fs = <256>;
+ simple-audio-card,widgets =
+ "Microphone", "Mic Jack",
+ "Headphone", "Headphone Jack";
+ simple-audio-card,routing =
+ "Mic Jack", "MICBIAS1",
+ "IN1P", "Mic Jack",
+ "Headphone Jack", "HPOL",
+ "Headphone Jack", "HPOR";
+ simple-audio-card,cpu {
+ sound-dai = <&i2s0>;
+ };
+ simple-audio-card,codec {
+ sound-dai = <&rt5651>;
+ };
+ };
+
+ sdio_pwrseq: sdio-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ clocks = <&rk808 1>;
+ clock-names = "ext_clock";
+ pinctrl-names = "default";
+ pinctrl-0 = <&wifi_enable_h>;
+
+ /*
+ * On the module itself this is one of these (depending
+ * on the actual card populated):
+ * - SDIO_RESET_L_WL_REG_ON
+ * - PDN (power down when low)
+ */
+ reset-gpios = <&gpio0 RK_PB2 GPIO_ACTIVE_LOW>;
+ };
+};
+
+&backlight {
+ enable-gpios = <&gpio1 RK_PB5 GPIO_ACTIVE_HIGH>;
+ status = "okay";
+};
+
+&edp {
+ status = "okay";
+
+ ports {
+ edp_out: port@1 {
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ edp_out_panel: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&panel_in_edp>;
+ };
+ };
+ };
+};
+
+&i2c1 {
+ i2c-scl-rising-time-ns = <300>;
+ i2c-scl-falling-time-ns = <15>;
+ status = "okay";
+
+ rt5651: rt5651@1a {
+ compatible = "rockchip,rt5651";
+ reg = <0x1a>;
+ clocks = <&cru SCLK_I2S_8CH_OUT>;
+ clock-names = "mclk";
+ hp-det-gpio = <&gpio4 RK_PC4 GPIO_ACTIVE_LOW>;
+ spk-con-gpio = <&gpio0 RK_PB3 GPIO_ACTIVE_HIGH>;
+ #sound-dai-cells = <0>;
+ };
+};
+
+&i2c4 {
+ i2c-scl-rising-time-ns = <600>;
+ i2c-scl-falling-time-ns = <20>;
+ status = "okay";
+
+ accelerometer@68 {
+ compatible = "invensense,mpu6500";
+ reg = <0x68>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <RK_PC6 IRQ_TYPE_EDGE_RISING>;
+ };
+};
+
+&i2s0 {
+ rockchip,playback-channels = <8>;
+ rockchip,capture-channels = <8>;
+ #sound-dai-cells = <0>;
+ status = "okay";
+};
+
+&i2s2 {
+ #sound-dai-cells = <0>;
+ status = "okay";
+};
+
+&pinctrl {
+ buttons {
+ pwr_btn: pwr-btn {
+ rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>;
+ };
+ };
+
+ sdio-pwrseq {
+ wifi_enable_h: wifi-enable-h {
+ rockchip,pins = <0 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ lcd-panel {
+ lcd_panel_reset: lcd-panel-reset {
+ rockchip,pins = <4 RK_PD6 RK_FUNC_GPIO &pcfg_pull_up>;
+ };
+ };
+};
+
+&spdif {
+ i2c-scl-rising-time-ns = <450>;
+ i2c-scl-falling-time-ns = <15>;
+ #sound-dai-cells = <0>;
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
new file mode 100644
index 000000000000..0f873c897d0d
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
@@ -0,0 +1,644 @@
+/*
+ * Copyright (c) 2017 Fuzhou Rockchip Electronics Co., Ltd.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "dt-bindings/pwm/pwm.h"
+#include "rk3399.dtsi"
+#include "rk3399-opp.dtsi"
+
+/ {
+ compatible = "rockchip,rk3399-sapphire", "rockchip,rk3399";
+
+ backlight: backlight {
+ compatible = "pwm-backlight";
+ brightness-levels = <
+ 0 1 2 3 4 5 6 7
+ 8 9 10 11 12 13 14 15
+ 16 17 18 19 20 21 22 23
+ 24 25 26 27 28 29 30 31
+ 32 33 34 35 36 37 38 39
+ 40 41 42 43 44 45 46 47
+ 48 49 50 51 52 53 54 55
+ 56 57 58 59 60 61 62 63
+ 64 65 66 67 68 69 70 71
+ 72 73 74 75 76 77 78 79
+ 80 81 82 83 84 85 86 87
+ 88 89 90 91 92 93 94 95
+ 96 97 98 99 100 101 102 103
+ 104 105 106 107 108 109 110 111
+ 112 113 114 115 116 117 118 119
+ 120 121 122 123 124 125 126 127
+ 128 129 130 131 132 133 134 135
+ 136 137 138 139 140 141 142 143
+ 144 145 146 147 148 149 150 151
+ 152 153 154 155 156 157 158 159
+ 160 161 162 163 164 165 166 167
+ 168 169 170 171 172 173 174 175
+ 176 177 178 179 180 181 182 183
+ 184 185 186 187 188 189 190 191
+ 192 193 194 195 196 197 198 199
+ 200 201 202 203 204 205 206 207
+ 208 209 210 211 212 213 214 215
+ 216 217 218 219 220 221 222 223
+ 224 225 226 227 228 229 230 231
+ 232 233 234 235 236 237 238 239
+ 240 241 242 243 244 245 246 247
+ 248 249 250 251 252 253 254 255>;
+ default-brightness-level = <200>;
+ pwms = <&pwm0 0 25000 0>;
+ };
+
+ clkin_gmac: external-gmac-clock {
+ compatible = "fixed-clock";
+ clock-frequency = <125000000>;
+ clock-output-names = "clkin_gmac";
+ #clock-cells = <0>;
+ };
+
+ dc_12v: dc-12v {
+ compatible = "regulator-fixed";
+ regulator-name = "dc_12v";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <12000000>;
+ regulator-max-microvolt = <12000000>;
+ };
+
+ /* switched by pmic_sleep */
+ vcc1v8_s3: vcca1v8_s3: vcc1v8-s3 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc1v8_s3";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ vin-supply = <&vcc_1v8>;
+ };
+
+ vcc3v3_sys: vcc3v3-sys {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc3v3_sys";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ vin-supply = <&vcc_sys>;
+ };
+
+ vcc_sys: vcc-sys {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc_sys";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ vin-supply = <&dc_12v>;
+ };
+
+ vcc5v0_host: vcc5v0-host-regulator {
+ compatible = "regulator-fixed";
+ enable-active-high;
+ gpio = <&gpio1 RK_PD1 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&vcc5v0_host_en>;
+ regulator-name = "vcc5v0_host";
+ regulator-always-on;
+ vin-supply = <&vcc_sys>;
+ };
+};
+
+&cpu_l0 {
+ cpu-supply = <&vdd_cpu_l>;
+};
+
+&cpu_l1 {
+ cpu-supply = <&vdd_cpu_l>;
+};
+
+&cpu_l2 {
+ cpu-supply = <&vdd_cpu_l>;
+};
+
+&cpu_l3 {
+ cpu-supply = <&vdd_cpu_l>;
+};
+
+&cpu_b0 {
+ cpu-supply = <&vdd_cpu_b>;
+};
+
+&cpu_b1 {
+ cpu-supply = <&vdd_cpu_b>;
+};
+
+&emmc_phy {
+ status = "okay";
+};
+
+&gmac {
+ assigned-clocks = <&cru SCLK_RMII_SRC>;
+ assigned-clock-parents = <&clkin_gmac>;
+ clock_in_out = "input";
+ phy-supply = <&vcc_lan>;
+ phy-mode = "rgmii";
+ pinctrl-names = "default";
+ pinctrl-0 = <&rgmii_pins>;
+ snps,reset-gpio = <&gpio3 RK_PB7 GPIO_ACTIVE_LOW>;
+ snps,reset-active-low;
+ snps,reset-delays-us = <0 10000 50000>;
+ tx_delay = <0x28>;
+ rx_delay = <0x11>;
+ status = "okay";
+};
+
+&gpu {
+ mali-supply = <&vdd_gpu>;
+ status = "okay";
+};
+
+&hdmi {
+ ddc-i2c-bus = <&i2c3>;
+ status = "okay";
+};
+
+&i2c0 {
+ clock-frequency = <400000>;
+ i2c-scl-rising-time-ns = <168>;
+ i2c-scl-falling-time-ns = <4>;
+ status = "okay";
+
+ rk808: pmic@1b {
+ compatible = "rockchip,rk808";
+ reg = <0x1b>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <21 IRQ_TYPE_LEVEL_LOW>;
+ #clock-cells = <1>;
+ clock-output-names = "xin32k", "rk808-clkout2";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pmic_int_l &pmic_dvs2>;
+ rockchip,system-power-controller;
+ wakeup-source;
+
+ vcc1-supply = <&vcc_sys>;
+ vcc2-supply = <&vcc_sys>;
+ vcc3-supply = <&vcc_sys>;
+ vcc4-supply = <&vcc_sys>;
+ vcc6-supply = <&vcc_sys>;
+ vcc7-supply = <&vcc_sys>;
+ vcc8-supply = <&vcc3v3_sys>;
+ vcc9-supply = <&vcc_sys>;
+ vcc10-supply = <&vcc_sys>;
+ vcc11-supply = <&vcc_sys>;
+ vcc12-supply = <&vcc3v3_sys>;
+ vddio-supply = <&vcc1v8_pmu>;
+
+ regulators {
+ vdd_center: DCDC_REG1 {
+ regulator-name = "vdd_center";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <750000>;
+ regulator-max-microvolt = <1350000>;
+ regulator-ramp-delay = <6001>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vdd_cpu_l: DCDC_REG2 {
+ regulator-name = "vdd_cpu_l";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <750000>;
+ regulator-max-microvolt = <1350000>;
+ regulator-ramp-delay = <6001>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc_ddr: DCDC_REG3 {
+ regulator-name = "vcc_ddr";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
+ };
+
+ vcc_1v8: DCDC_REG4 {
+ regulator-name = "vcc_1v8";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1800000>;
+ };
+ };
+
+ vcc1v8_dvp: LDO_REG1 {
+ regulator-name = "vcc1v8_dvp";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc3v0_tp: LDO_REG2 {
+ regulator-name = "vcc3v0_tp";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc1v8_pmu: LDO_REG3 {
+ regulator-name = "vcc1v8_pmu";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1800000>;
+ };
+ };
+
+ vcc_sdio: LDO_REG4 {
+ regulator-name = "vcc_sdio";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <3000000>;
+ };
+ };
+
+ vcca3v0_codec: LDO_REG5 {
+ regulator-name = "vcca3v0_codec";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc_1v5: LDO_REG6 {
+ regulator-name = "vcc_1v5";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1500000>;
+ };
+ };
+
+ vcca1v8_codec: LDO_REG7 {
+ regulator-name = "vcca1v8_codec";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc_3v0: LDO_REG8 {
+ regulator-name = "vcc_3v0";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <3000000>;
+ };
+ };
+
+ vcc3v3_s3: vcc_lan: SWITCH_REG1 {
+ regulator-name = "vcc3v3_s3";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc3v3_s0: SWITCH_REG2 {
+ regulator-name = "vcc3v3_s0";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+ };
+ };
+
+ vdd_cpu_b: regulator@40 {
+ compatible = "silergy,syr827";
+ reg = <0x40>;
+ fcs,suspend-voltage-selector = <1>;
+ regulator-name = "vdd_cpu_b";
+ regulator-min-microvolt = <712500>;
+ regulator-max-microvolt = <1500000>;
+ regulator-ramp-delay = <1000>;
+ regulator-always-on;
+ regulator-boot-on;
+ vin-supply = <&vcc_sys>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vdd_gpu: regulator@41 {
+ compatible = "silergy,syr828";
+ reg = <0x41>;
+ fcs,suspend-voltage-selector = <1>;
+ regulator-name = "vdd_gpu";
+ regulator-min-microvolt = <712500>;
+ regulator-max-microvolt = <1500000>;
+ regulator-ramp-delay = <1000>;
+ regulator-always-on;
+ regulator-boot-on;
+ vin-supply = <&vcc_sys>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vdd_log: vdd-log {
+ compatible = "pwm-regulator";
+ pwms = <&pwm2 0 25000 1>;
+ regulator-name = "vdd_log";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <1400000>;
+ vin-supply = <&vcc_sys>;
+ };
+};
+
+&i2c3 {
+ i2c-scl-rising-time-ns = <450>;
+ i2c-scl-falling-time-ns = <15>;
+ status = "okay";
+};
+
+&io_domains {
+ status = "okay";
+
+ bt656-supply = <&vcc_3v0>;
+ audio-supply = <&vcca1v8_codec>;
+ sdmmc-supply = <&vcc_sdio>;
+ gpio1830-supply = <&vcc_3v0>;
+};
+
+&pcie_phy {
+ status = "okay";
+};
+
+&pcie0 {
+ assigned-clocks = <&cru SCLK_PCIEPHY_REF>;
+ assigned-clock-parents = <&cru SCLK_PCIEPHY_REF100M>;
+ assigned-clock-rates = <100000000>;
+ ep-gpios = <&gpio3 RK_PB5 GPIO_ACTIVE_HIGH>;
+ num-lanes = <4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pcie_clkreqn_cpm>;
+ status = "okay";
+};
+
+&pmu_io_domains {
+ pmu1830-supply = <&vcc_3v0>;
+ status = "okay";
+};
+
+&pinctrl {
+ pmic {
+ pmic_int_l: pmic-int-l {
+ rockchip,pins =
+ <1 RK_PC5 RK_FUNC_GPIO &pcfg_pull_up>;
+ };
+
+ pmic_dvs2: pmic-dvs2 {
+ rockchip,pins =
+ <1 RK_PC2 RK_FUNC_GPIO &pcfg_pull_down>;
+ };
+
+ vsel1_gpio: vsel1-gpio {
+ rockchip,pins = <1 RK_PC1 RK_FUNC_GPIO &pcfg_pull_down>;
+ };
+
+ vsel2_gpio: vsel2-gpio {
+ rockchip,pins = <1 RK_PB6 RK_FUNC_GPIO &pcfg_pull_down>;
+ };
+ };
+
+ usb2 {
+ vcc5v0_host_en: vcc5v0-host-en {
+ rockchip,pins =
+ <4 RK_PD1 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+};
+
+&pwm0 {
+ status = "okay";
+};
+
+&pwm2 {
+ status = "okay";
+};
+
+&saradc {
+ vref-supply = <&vcca1v8_s3>;
+ status = "okay";
+};
+
+&sdhci {
+ bus-width = <8>;
+ keep-power-in-suspend;
+ mmc-hs400-1_8v;
+ mmc-hs400-enhanced-strobe;
+ non-removable;
+ status = "okay";
+};
+
+&sdio0 {
+ bus-width = <4>;
+ cap-sd-highspeed;
+ cap-sdio-irq;
+ clock-frequency = <50000000>;
+ disable-wp;
+ keep-power-in-suspend;
+ max-frequency = <50000000>;
+ mmc-pwrseq = <&sdio_pwrseq>;
+ non-removable;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdio0_bus4 &sdio0_cmd &sdio0_clk>;
+ sd-uhs-sdr104;
+ status = "okay";
+};
+
+&sdmmc {
+ bus-width = <4>;
+ cap-mmc-highspeed;
+ cap-sd-highspeed;
+ clock-frequency = <150000000>;
+ disable-wp;
+ max-frequency = <150000000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
+ vqmmc-supply = <&vcc_sdio>;
+ status = "okay";
+};
+
+&tsadc {
+ /* tshut mode 0:CRU 1:GPIO */
+ rockchip,hw-tshut-mode = <1>;
+ /* tshut polarity 0:LOW 1:HIGH */
+ rockchip,hw-tshut-polarity = <1>;
+ status = "okay";
+};
+
+&u2phy0 {
+ status = "okay";
+
+ u2phy0_otg: otg-port {
+ status = "okay";
+ };
+
+ u2phy0_host: host-port {
+ phy-supply = <&vcc5v0_host>;
+ status = "okay";
+ };
+};
+
+&u2phy1 {
+ status = "okay";
+
+ u2phy1_otg: otg-port {
+ status = "okay";
+ };
+
+ u2phy1_host: host-port {
+ phy-supply = <&vcc5v0_host>;
+ status = "okay";
+ };
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_xfer &uart0_cts>;
+ status = "okay";
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&usb_host0_ehci {
+ status = "okay";
+};
+
+&usb_host0_ohci {
+ status = "okay";
+};
+
+&usb_host1_ehci {
+ status = "okay";
+};
+
+&usb_host1_ohci {
+ status = "okay";
+};
+
+&usbdrd3_0 {
+ status = "okay";
+};
+
+&usbdrd_dwc3_0 {
+ status = "okay";
+ dr_mode = "otg";
+};
+
+&usbdrd3_1 {
+ status = "okay";
+};
+
+&usbdrd_dwc3_1 {
+ status = "okay";
+ dr_mode = "host";
+};
+
+&vopb {
+ status = "okay";
+};
+
+&vopb_mmu {
+ status = "okay";
+};
+
+&vopl {
+ status = "okay";
+};
+
+&vopl_mmu {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index f4f3c96c798d..ab7629c5b856 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -56,6 +56,7 @@
#size-cells = <2>;
aliases {
+ ethernet0 = &gmac;
i2c0 = &i2c0;
i2c1 = &i2c1;
i2c2 = &i2c2;
@@ -109,6 +110,7 @@
enable-method = "psci";
#cooling-cells = <2>; /* min followed by max */
clocks = <&cru ARMCLKL>;
+ dynamic-power-coefficient = <100>;
};
cpu_l1: cpu@1 {
@@ -117,6 +119,7 @@
reg = <0x0 0x1>;
enable-method = "psci";
clocks = <&cru ARMCLKL>;
+ dynamic-power-coefficient = <100>;
};
cpu_l2: cpu@2 {
@@ -125,6 +128,7 @@
reg = <0x0 0x2>;
enable-method = "psci";
clocks = <&cru ARMCLKL>;
+ dynamic-power-coefficient = <100>;
};
cpu_l3: cpu@3 {
@@ -133,6 +137,7 @@
reg = <0x0 0x3>;
enable-method = "psci";
clocks = <&cru ARMCLKL>;
+ dynamic-power-coefficient = <100>;
};
cpu_b0: cpu@100 {
@@ -142,6 +147,7 @@
enable-method = "psci";
#cooling-cells = <2>; /* min followed by max */
clocks = <&cru ARMCLKB>;
+ dynamic-power-coefficient = <436>;
};
cpu_b1: cpu@101 {
@@ -150,9 +156,15 @@
reg = <0x0 0x101>;
enable-method = "psci";
clocks = <&cru ARMCLKB>;
+ dynamic-power-coefficient = <436>;
};
};
+ display-subsystem {
+ compatible = "rockchip,display-subsystem";
+ ports = <&vopl_out>, <&vopb_out>;
+ };
+
pmu_a53 {
compatible = "arm,cortex-a53-pmu";
interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_LOW &ppi_cluster0>;
@@ -220,7 +232,7 @@
#size-cells = <2>;
#interrupt-cells = <1>;
aspm-no-l0s;
- bus-range = <0x0 0x1>;
+ bus-range = <0x0 0x1f>;
clocks = <&cru ACLK_PCIE>, <&cru ACLK_PERF_PCIE>,
<&cru PCLK_PCIE>, <&cru SCLK_PCIE_PM>;
clock-names = "aclk", "aclk-perf",
@@ -237,10 +249,12 @@
linux,pci-domain = <0>;
max-link-speed = <1>;
msi-map = <0x0 &its 0x0 0x1000>;
- phys = <&pcie_phy>;
- phy-names = "pcie-phy";
- ranges = <0x83000000 0x0 0xfa000000 0x0 0xfa000000 0x0 0x600000
- 0x81000000 0x0 0xfa600000 0x0 0xfa600000 0x0 0x100000>;
+ phys = <&pcie_phy 0>, <&pcie_phy 1>,
+ <&pcie_phy 2>, <&pcie_phy 3>;
+ phy-names = "pcie-phy-0", "pcie-phy-1",
+ "pcie-phy-2", "pcie-phy-3";
+ ranges = <0x83000000 0x0 0xfa000000 0x0 0xfa000000 0x0 0x1e00000
+ 0x81000000 0x0 0xfbe00000 0x0 0xfbe00000 0x0 0x100000>;
resets = <&cru SRST_PCIE_CORE>, <&cru SRST_PCIE_MGMT>,
<&cru SRST_PCIE_MGMT_STICKY>, <&cru SRST_PCIE_PIPE>,
<&cru SRST_PCIE_PM>, <&cru SRST_P_PCIE>,
@@ -286,6 +300,7 @@
<&cru SCLK_SDIO_DRV>, <&cru SCLK_SDIO_SAMPLE>;
clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
fifo-depth = <0x100>;
+ power-domains = <&power RK3399_PD_SDIOAUDIO>;
resets = <&cru SRST_SDIO0>;
reset-names = "reset";
status = "disabled";
@@ -399,6 +414,7 @@
snps,dis-u2-freeclk-exists-quirk;
snps,dis_u2_susphy_quirk;
snps,dis-del-phy-power-chg-quirk;
+ snps,dis-tx-ipgap-linecheck-quirk;
status = "disabled";
};
};
@@ -426,6 +442,7 @@
snps,dis-u2-freeclk-exists-quirk;
snps,dis_u2_susphy_quirk;
snps,dis-del-phy-power-chg-quirk;
+ snps,dis-tx-ipgap-linecheck-quirk;
status = "disabled";
};
};
@@ -675,6 +692,7 @@
interrupts = <GIC_SPI 132 IRQ_TYPE_LEVEL_HIGH 0>;
pinctrl-names = "default";
pinctrl-0 = <&spi5_clk &spi5_tx &spi5_rx &spi5_cs0>;
+ power-domains = <&power RK3399_PD_SDIOAUDIO>;
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
@@ -769,11 +787,6 @@
status = "disabled";
};
- qos_sd: qos@ffa74000 {
- compatible = "syscon";
- reg = <0x0 0xffa74000 0x0 0x20>;
- };
-
qos_emmc: qos@ffa58000 {
compatible = "syscon";
reg = <0x0 0xffa58000 0x0 0x20>;
@@ -784,6 +797,41 @@
reg = <0x0 0xffa5c000 0x0 0x20>;
};
+ qos_pcie: qos@ffa60080 {
+ compatible = "syscon";
+ reg = <0x0 0xffa60080 0x0 0x20>;
+ };
+
+ qos_usb_host0: qos@ffa60100 {
+ compatible = "syscon";
+ reg = <0x0 0xffa60100 0x0 0x20>;
+ };
+
+ qos_usb_host1: qos@ffa60180 {
+ compatible = "syscon";
+ reg = <0x0 0xffa60180 0x0 0x20>;
+ };
+
+ qos_usb_otg0: qos@ffa70000 {
+ compatible = "syscon";
+ reg = <0x0 0xffa70000 0x0 0x20>;
+ };
+
+ qos_usb_otg1: qos@ffa70080 {
+ compatible = "syscon";
+ reg = <0x0 0xffa70080 0x0 0x20>;
+ };
+
+ qos_sd: qos@ffa74000 {
+ compatible = "syscon";
+ reg = <0x0 0xffa74000 0x0 0x20>;
+ };
+
+ qos_sdioaudio: qos@ffa76000 {
+ compatible = "syscon";
+ reg = <0x0 0xffa76000 0x0 0x20>;
+ };
+
qos_hdcp: qos@ffa90000 {
compatible = "syscon";
reg = <0x0 0xffa90000 0x0 0x20>;
@@ -854,6 +902,11 @@
reg = <0x0 0xffad0000 0x0 0x20>;
};
+ qos_perihp: qos@ffad8080 {
+ compatible = "syscon";
+ reg = <0x0 0xffad8080 0x0 0x20>;
+ };
+
qos_gpu: qos@ffae0000 {
compatible = "syscon";
reg = <0x0 0xffae0000 0x0 0x20>;
@@ -912,6 +965,10 @@
};
/* These power domains are grouped by VD_LOGIC */
+ pd_edp@RK3399_PD_EDP {
+ reg = <RK3399_PD_EDP>;
+ clocks = <&cru PCLK_EDP_CTRL>;
+ };
pd_emmc@RK3399_PD_EMMC {
reg = <RK3399_PD_EMMC>;
clocks = <&cru ACLK_EMMC>;
@@ -929,6 +986,11 @@
<&cru SCLK_SDMMC>;
pm_qos = <&qos_sd>;
};
+ pd_sdioaudio@RK3399_PD_SDIOAUDIO {
+ reg = <RK3399_PD_SDIOAUDIO>;
+ clocks = <&cru HCLK_SDIO>;
+ pm_qos = <&qos_sdioaudio>;
+ };
pd_vio@RK3399_PD_VIO {
reg = <RK3399_PD_VIO>;
#address-cells = <1>;
@@ -1115,6 +1177,33 @@
status = "disabled";
};
+ vpu_mmu: iommu@ff650800 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff650800 0x0 0x40>;
+ interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH 0>;
+ interrupt-names = "vpu_mmu";
+ #iommu-cells = <0>;
+ status = "disabled";
+ };
+
+ vdec_mmu: iommu@ff660480 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff660480 0x0 0x40>, <0x0 0xff6604c0 0x0 0x40>;
+ interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH 0>;
+ interrupt-names = "vdec_mmu";
+ #iommu-cells = <0>;
+ status = "disabled";
+ };
+
+ iep_mmu: iommu@ff670800 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff670800 0x0 0x40>;
+ interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH 0>;
+ interrupt-names = "iep_mmu";
+ #iommu-cells = <0>;
+ status = "disabled";
+ };
+
efuse0: efuse@ff690000 {
compatible = "rockchip,rk3399-efuse";
reg = <0x0 0xff690000 0x0 0x80>;
@@ -1259,7 +1348,7 @@
compatible = "rockchip,rk3399-pcie-phy";
clocks = <&cru SCLK_PCIEPHY_REF>;
clock-names = "refclk";
- #phy-cells = <0>;
+ #phy-cells = <1>;
resets = <&cru SRST_PCIEPHY>;
reset-names = "phy";
status = "disabled";
@@ -1349,6 +1438,7 @@
clocks = <&cru SCLK_SPDIF_8CH>, <&cru HCLK_SPDIF>;
pinctrl-names = "default";
pinctrl-0 = <&spdif_bus>;
+ power-domains = <&power RK3399_PD_SDIOAUDIO>;
status = "disabled";
};
@@ -1363,6 +1453,7 @@
clocks = <&cru SCLK_I2S0_8CH>, <&cru HCLK_I2S0_8CH>;
pinctrl-names = "default";
pinctrl-0 = <&i2s0_8ch_bus>;
+ power-domains = <&power RK3399_PD_SDIOAUDIO>;
status = "disabled";
};
@@ -1376,6 +1467,7 @@
clocks = <&cru SCLK_I2S1_8CH>, <&cru HCLK_I2S1_8CH>;
pinctrl-names = "default";
pinctrl-0 = <&i2s1_2ch_bus>;
+ power-domains = <&power RK3399_PD_SDIOAUDIO>;
status = "disabled";
};
@@ -1387,6 +1479,224 @@
dma-names = "tx", "rx";
clock-names = "i2s_clk", "i2s_hclk";
clocks = <&cru SCLK_I2S2_8CH>, <&cru HCLK_I2S2_8CH>;
+ power-domains = <&power RK3399_PD_SDIOAUDIO>;
+ status = "disabled";
+ };
+
+ vopl: vop@ff8f0000 {
+ compatible = "rockchip,rk3399-vop-lit";
+ reg = <0x0 0xff8f0000 0x0 0x3efc>;
+ interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH 0>;
+ assigned-clocks = <&cru ACLK_VOP1>, <&cru HCLK_VOP1>;
+ assigned-clock-rates = <400000000>, <100000000>;
+ clocks = <&cru ACLK_VOP1>, <&cru DCLK_VOP1>, <&cru HCLK_VOP1>;
+ clock-names = "aclk_vop", "dclk_vop", "hclk_vop";
+ iommus = <&vopl_mmu>;
+ power-domains = <&power RK3399_PD_VOPL>;
+ resets = <&cru SRST_A_VOP1>, <&cru SRST_H_VOP1>, <&cru SRST_D_VOP1>;
+ reset-names = "axi", "ahb", "dclk";
+ status = "disabled";
+
+ vopl_out: port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ vopl_out_mipi: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&mipi_in_vopl>;
+ };
+
+ vopl_out_edp: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&edp_in_vopl>;
+ };
+
+ vopl_out_hdmi: endpoint@2 {
+ reg = <2>;
+ remote-endpoint = <&hdmi_in_vopl>;
+ };
+ };
+ };
+
+ vopl_mmu: iommu@ff8f3f00 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff8f3f00 0x0 0x100>;
+ interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH 0>;
+ interrupt-names = "vopl_mmu";
+ clocks = <&cru ACLK_VOP1>, <&cru HCLK_VOP1>;
+ clock-names = "aclk", "hclk";
+ power-domains = <&power RK3399_PD_VOPL>;
+ #iommu-cells = <0>;
+ status = "disabled";
+ };
+
+ vopb: vop@ff900000 {
+ compatible = "rockchip,rk3399-vop-big";
+ reg = <0x0 0xff900000 0x0 0x3efc>;
+ interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH 0>;
+ assigned-clocks = <&cru ACLK_VOP0>, <&cru HCLK_VOP0>;
+ assigned-clock-rates = <400000000>, <100000000>;
+ clocks = <&cru ACLK_VOP0>, <&cru DCLK_VOP0>, <&cru HCLK_VOP0>;
+ clock-names = "aclk_vop", "dclk_vop", "hclk_vop";
+ iommus = <&vopb_mmu>;
+ power-domains = <&power RK3399_PD_VOPB>;
+ resets = <&cru SRST_A_VOP0>, <&cru SRST_H_VOP0>, <&cru SRST_D_VOP0>;
+ reset-names = "axi", "ahb", "dclk";
+ status = "disabled";
+
+ vopb_out: port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ vopb_out_edp: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&edp_in_vopb>;
+ };
+
+ vopb_out_mipi: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&mipi_in_vopb>;
+ };
+
+ vopb_out_hdmi: endpoint@2 {
+ reg = <2>;
+ remote-endpoint = <&hdmi_in_vopb>;
+ };
+ };
+ };
+
+ vopb_mmu: iommu@ff903f00 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff903f00 0x0 0x100>;
+ interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH 0>;
+ interrupt-names = "vopb_mmu";
+ clocks = <&cru ACLK_VOP0>, <&cru HCLK_VOP0>;
+ clock-names = "aclk", "hclk";
+ power-domains = <&power RK3399_PD_VOPB>;
+ #iommu-cells = <0>;
+ status = "disabled";
+ };
+
+ isp0_mmu: iommu@ff914000 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff914000 0x0 0x100>, <0x0 0xff915000 0x0 0x100>;
+ interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH 0>;
+ interrupt-names = "isp0_mmu";
+ #iommu-cells = <0>;
+ rockchip,disable-mmu-reset;
+ status = "disabled";
+ };
+
+ isp1_mmu: iommu@ff924000 {
+ compatible = "rockchip,iommu";
+ reg = <0x0 0xff924000 0x0 0x100>, <0x0 0xff925000 0x0 0x100>;
+ interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH 0>;
+ interrupt-names = "isp1_mmu";
+ #iommu-cells = <0>;
+ rockchip,disable-mmu-reset;
+ status = "disabled";
+ };
+
+ hdmi: hdmi@ff940000 {
+ compatible = "rockchip,rk3399-dw-hdmi";
+ reg = <0x0 0xff940000 0x0 0x20000>;
+ interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH 0>;
+ clocks = <&cru PCLK_HDMI_CTRL>, <&cru SCLK_HDMI_SFR>, <&cru PLL_VPLL>, <&cru PCLK_VIO_GRF>;
+ clock-names = "iahb", "isfr", "vpll", "grf";
+ power-domains = <&power RK3399_PD_HDCP>;
+ reg-io-width = <4>;
+ rockchip,grf = <&grf>;
+ status = "disabled";
+
+ ports {
+ hdmi_in: port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hdmi_in_vopb: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&vopb_out_hdmi>;
+ };
+ hdmi_in_vopl: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&vopl_out_hdmi>;
+ };
+ };
+ };
+ };
+
+ mipi_dsi: mipi@ff960000 {
+ compatible = "rockchip,rk3399-mipi-dsi", "snps,dw-mipi-dsi";
+ reg = <0x0 0xff960000 0x0 0x8000>;
+ interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH 0>;
+ clocks = <&cru SCLK_DPHY_PLL>, <&cru PCLK_MIPI_DSI0>,
+ <&cru SCLK_DPHY_TX0_CFG>, <&cru PCLK_VIO_GRF>;
+ clock-names = "ref", "pclk", "phy_cfg", "grf";
+ power-domains = <&power RK3399_PD_VIO>;
+ rockchip,grf = <&grf>;
+ status = "disabled";
+
+ ports {
+ mipi_in: port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mipi_in_vopb: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&vopb_out_mipi>;
+ };
+ mipi_in_vopl: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&vopl_out_mipi>;
+ };
+ };
+ };
+ };
+
+ edp: edp@ff970000 {
+ compatible = "rockchip,rk3399-edp";
+ reg = <0x0 0xff970000 0x0 0x8000>;
+ interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH 0>;
+ clocks = <&cru PCLK_EDP>, <&cru PCLK_EDP_CTRL>;
+ clock-names = "dp", "pclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&edp_hpd>;
+ power-domains = <&power RK3399_PD_EDP>;
+ resets = <&cru SRST_P_EDP_CTRL>;
+ reset-names = "dp";
+ rockchip,grf = <&grf>;
+ status = "disabled";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ edp_in: port@0 {
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ edp_in_vopb: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&vopb_out_edp>;
+ };
+
+ edp_in_vopl: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&vopl_out_edp>;
+ };
+ };
+ };
+ };
+
+ gpu: gpu@ff9a0000 {
+ compatible = "rockchip,rk3399-mali", "arm,mali-t860";
+ reg = <0x0 0xff9a0000 0x0 0x10000>;
+ interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH 0>,
+ <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH 0>,
+ <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH 0>;
+ interrupt-names = "gpu", "job", "mmu";
+ clocks = <&cru ACLK_GPU>;
+ power-domains = <&power RK3399_PD_GPU>;
status = "disabled";
};
@@ -1676,6 +1986,91 @@
};
};
+ sdio0 {
+ sdio0_bus1: sdio0-bus1 {
+ rockchip,pins =
+ <2 RK_PC4 RK_FUNC_1 &pcfg_pull_up>;
+ };
+
+ sdio0_bus4: sdio0-bus4 {
+ rockchip,pins =
+ <2 RK_PC4 RK_FUNC_1 &pcfg_pull_up>,
+ <2 RK_PC5 RK_FUNC_1 &pcfg_pull_up>,
+ <2 RK_PC6 RK_FUNC_1 &pcfg_pull_up>,
+ <2 RK_PC7 RK_FUNC_1 &pcfg_pull_up>;
+ };
+
+ sdio0_cmd: sdio0-cmd {
+ rockchip,pins =
+ <2 RK_PD0 RK_FUNC_1 &pcfg_pull_up>;
+ };
+
+ sdio0_clk: sdio0-clk {
+ rockchip,pins =
+ <2 RK_PD1 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ sdio0_cd: sdio0-cd {
+ rockchip,pins =
+ <2 RK_PD2 RK_FUNC_1 &pcfg_pull_up>;
+ };
+
+ sdio0_pwr: sdio0-pwr {
+ rockchip,pins =
+ <2 RK_PD3 RK_FUNC_1 &pcfg_pull_up>;
+ };
+
+ sdio0_bkpwr: sdio0-bkpwr {
+ rockchip,pins =
+ <2 RK_PD4 RK_FUNC_1 &pcfg_pull_up>;
+ };
+
+ sdio0_wp: sdio0-wp {
+ rockchip,pins =
+ <0 RK_PA3 RK_FUNC_1 &pcfg_pull_up>;
+ };
+
+ sdio0_int: sdio0-int {
+ rockchip,pins =
+ <0 RK_PA4 RK_FUNC_1 &pcfg_pull_up>;
+ };
+ };
+
+ sdmmc {
+ sdmmc_bus1: sdmmc-bus1 {
+ rockchip,pins =
+ <4 RK_PB0 RK_FUNC_1 &pcfg_pull_up>;
+ };
+
+ sdmmc_bus4: sdmmc-bus4 {
+ rockchip,pins =
+ <4 RK_PB0 RK_FUNC_1 &pcfg_pull_up>,
+ <4 RK_PB1 RK_FUNC_1 &pcfg_pull_up>,
+ <4 RK_PB2 RK_FUNC_1 &pcfg_pull_up>,
+ <4 RK_PB3 RK_FUNC_1 &pcfg_pull_up>;
+ };
+
+ sdmmc_clk: sdmmc-clk {
+ rockchip,pins =
+ <4 RK_PB4 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ sdmmc_cmd: sdmmc-cmd {
+ rockchip,pins =
+ <4 RK_PB5 RK_FUNC_1 &pcfg_pull_up>;
+ };
+
+ sdmmc_cd: sdmmc-cd {
+ rockchip,pins =
+ <0 RK_PA7 RK_FUNC_1 &pcfg_pull_up>;
+ };
+
+ sdmmc_wp: sdmmc-wp {
+ rockchip,pins =
+ <0 RK_PB0 RK_FUNC_1 &pcfg_pull_up>;
+ };
+ };
+
sleep {
ap_pwroff: ap-pwroff {
rockchip,pins = <1 5 RK_FUNC_1 &pcfg_pull_none>;
@@ -1691,6 +2086,11 @@
rockchip,pins =
<4 21 RK_FUNC_1 &pcfg_pull_none>;
};
+
+ spdif_bus_1: spdif-bus-1 {
+ rockchip,pins =
+ <3 RK_PC0 RK_FUNC_3 &pcfg_pull_none>;
+ };
};
spi0 {
@@ -1950,15 +2350,28 @@
};
};
+ hdmi {
+ hdmi_i2c_xfer: hdmi-i2c-xfer {
+ rockchip,pins =
+ <4 RK_PC1 RK_FUNC_3 &pcfg_pull_none>,
+ <4 RK_PC0 RK_FUNC_3 &pcfg_pull_none>;
+ };
+
+ hdmi_cec: hdmi-cec {
+ rockchip,pins =
+ <4 RK_PC7 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
pcie {
- pcie_clkreqn: pci-clkreqn {
+ pcie_clkreqn_cpm: pci-clkreqn-cpm {
rockchip,pins =
- <2 26 RK_FUNC_2 &pcfg_pull_none>;
+ <2 RK_PD2 RK_FUNC_GPIO &pcfg_pull_none>;
};
- pcie_clkreqnb: pci-clkreqnb {
+ pcie_clkreqnb_cpm: pci-clkreqnb-cpm {
rockchip,pins =
- <4 24 RK_FUNC_1 &pcfg_pull_none>;
+ <4 RK_PD0 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
diff --git a/arch/arm64/boot/dts/socionext/Makefile b/arch/arm64/boot/dts/socionext/Makefile
index 5538598b302c..4bc091b365fd 100644
--- a/arch/arm64/boot/dts/socionext/Makefile
+++ b/arch/arm64/boot/dts/socionext/Makefile
@@ -1,6 +1,9 @@
dtb-$(CONFIG_ARCH_UNIPHIER) += \
+ uniphier-ld11-global.dtb \
uniphier-ld11-ref.dtb \
- uniphier-ld20-ref.dtb
+ uniphier-ld20-global.dtb \
+ uniphier-ld20-ref.dtb \
+ uniphier-pxs3-ref.dtb
always := $(dtb-y)
clean-files := *.dtb
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld11-global.dts b/arch/arm64/boot/dts/socionext/uniphier-ld11-global.dts
new file mode 100644
index 000000000000..2452b2243f42
--- /dev/null
+++ b/arch/arm64/boot/dts/socionext/uniphier-ld11-global.dts
@@ -0,0 +1,74 @@
+/*
+ * Device Tree Source for UniPhier LD11 Global Board
+ *
+ * Copyright (C) 2016-2017 Socionext Inc.
+ * Author: Masahiro Yamada <yamada.masahiro@socionext.com>
+ * Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+/dts-v1/;
+#include "uniphier-ld11.dtsi"
+
+/ {
+ model = "UniPhier LD11 Global Board (REF_LD11_GP)";
+ compatible = "socionext,uniphier-ld11-global",
+ "socionext,uniphier-ld11";
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ aliases {
+ serial0 = &serial0;
+ serial1 = &serial1;
+ serial2 = &serial2;
+ serial3 = &serial3;
+ i2c0 = &i2c0;
+ i2c1 = &i2c1;
+ i2c2 = &i2c2;
+ i2c3 = &i2c3;
+ i2c4 = &i2c4;
+ i2c5 = &i2c5;
+ };
+
+ memory@80000000 {
+ device_type = "memory";
+ reg = <0 0x80000000 0 0x40000000>;
+ };
+};
+
+&serial0 {
+ status = "okay";
+};
+
+&serial1 {
+ status = "okay";
+};
+
+&i2c0 {
+ status = "okay";
+
+ eeprom@50 {
+ compatible = "st,24c64", "atmel,24c64";
+ reg = <0x50>;
+ pagesize = <32>;
+ };
+};
+
+&usb0 {
+ status = "okay";
+};
+
+&usb1 {
+ status = "okay";
+};
+
+&usb2 {
+ status = "okay";
+};
+
+&nand {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld11-ref.dts b/arch/arm64/boot/dts/socionext/uniphier-ld11-ref.dts
index 0173e93ab141..ffb473ad2e0f 100644
--- a/arch/arm64/boot/dts/socionext/uniphier-ld11-ref.dts
+++ b/arch/arm64/boot/dts/socionext/uniphier-ld11-ref.dts
@@ -4,49 +4,13 @@
* Copyright (C) 2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
/dts-v1/;
-/include/ "uniphier-ld11.dtsi"
-/include/ "uniphier-ref-daughter.dtsi"
-/include/ "uniphier-support-card.dtsi"
+#include "uniphier-ld11.dtsi"
+#include "uniphier-ref-daughter.dtsi"
+#include "uniphier-support-card.dtsi"
/ {
model = "UniPhier LD11 Reference Board";
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
index 151c043b4835..ee4aff53a5f5 100644
--- a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
@@ -4,46 +4,10 @@
* Copyright (C) 2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
-/memreserve/ 0x80000000 0x00080000;
+/memreserve/ 0x80000000 0x02000000;
/ {
compatible = "socionext,uniphier-ld11";
@@ -89,31 +53,31 @@
compatible = "operating-points-v2";
opp-shared;
- opp@245000000 {
+ opp-245000000 {
opp-hz = /bits/ 64 <245000000>;
clock-latency-ns = <300>;
};
- opp@250000000 {
+ opp-250000000 {
opp-hz = /bits/ 64 <250000000>;
clock-latency-ns = <300>;
};
- opp@490000000 {
+ opp-490000000 {
opp-hz = /bits/ 64 <490000000>;
clock-latency-ns = <300>;
};
- opp@500000000 {
+ opp-500000000 {
opp-hz = /bits/ 64 <500000000>;
clock-latency-ns = <300>;
};
- opp@653334000 {
+ opp-653334000 {
opp-hz = /bits/ 64 <653334000>;
clock-latency-ns = <300>;
};
- opp@666667000 {
+ opp-666667000 {
opp-hz = /bits/ 64 <666667000>;
clock-latency-ns = <300>;
};
- opp@980000000 {
+ opp-980000000 {
opp-hz = /bits/ 64 <980000000>;
clock-latency-ns = <300>;
};
@@ -186,6 +150,17 @@
clocks = <&peri_clk 3>;
};
+ adamv@57920000 {
+ compatible = "socionext,uniphier-ld11-adamv",
+ "simple-mfd", "syscon";
+ reg = <0x57920000 0x1000>;
+
+ adamv_rst: reset {
+ compatible = "socionext,uniphier-ld11-adamv-reset";
+ #reset-cells = <1>;
+ };
+ };
+
i2c0: i2c@58780000 {
compatible = "socionext,uniphier-fi2c";
status = "disabled";
@@ -268,7 +243,7 @@
pinctrl-0 = <&pinctrl_system_bus>;
};
- smpctrl@59800000 {
+ smpctrl@59801000 {
compatible = "socionext,uniphier-smpctrl";
reg = <0x59801000 0x400>;
};
@@ -310,6 +285,11 @@
bus-width = <8>;
mmc-ddr-1_8v;
mmc-hs200-1_8v;
+ cdns,phy-input-delay-legacy = <4>;
+ cdns,phy-input-delay-mmc-highspeed = <2>;
+ cdns,phy-input-delay-mmc-ddr = <3>;
+ cdns,phy-dll-delay-sdclk = <21>;
+ cdns,phy-dll-delay-sdclk-hsmmc = <21>;
};
usb0: usb@5a800100 {
@@ -375,6 +355,13 @@
};
};
+ aidet: aidet@5fc20000 {
+ compatible = "socionext,uniphier-ld11-aidet";
+ reg = <0x5fc20000 0x200>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
gic: interrupt-controller@5fe00000 {
compatible = "arm,gic-v3";
reg = <0x5fe00000 0x10000>, /* GICD */
@@ -398,8 +385,23 @@
compatible = "socionext,uniphier-ld11-reset";
#reset-cells = <1>;
};
+
+ watchdog {
+ compatible = "socionext,uniphier-wdt";
+ };
+ };
+
+ nand: nand@68000000 {
+ compatible = "socionext,uniphier-denali-nand-v5b";
+ status = "disabled";
+ reg-names = "nand_data", "denali_reg";
+ reg = <0x68000000 0x20>, <0x68100000 0x1000>;
+ interrupts = <0 65 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_nand>;
+ clocks = <&sys_clk 2>;
};
};
};
-/include/ "uniphier-pinctrl.dtsi"
+#include "uniphier-pinctrl.dtsi"
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld20-global.dts b/arch/arm64/boot/dts/socionext/uniphier-ld20-global.dts
new file mode 100644
index 000000000000..fc2bc9d75d35
--- /dev/null
+++ b/arch/arm64/boot/dts/socionext/uniphier-ld20-global.dts
@@ -0,0 +1,56 @@
+/*
+ * Device Tree Source for UniPhier LD20 Global Board
+ *
+ * Copyright (C) 2015-2017 Socionext Inc.
+ * Author: Masahiro Yamada <yamada.masahiro@socionext.com>
+ * Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+/dts-v1/;
+#include "uniphier-ld20.dtsi"
+
+/ {
+ model = "UniPhier LD20 Global Board (REF_LD20_GP)";
+ compatible = "socionext,uniphier-ld20-global",
+ "socionext,uniphier-ld20";
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ aliases {
+ serial0 = &serial0;
+ serial1 = &serial1;
+ serial2 = &serial2;
+ serial3 = &serial3;
+ i2c0 = &i2c0;
+ i2c1 = &i2c1;
+ i2c2 = &i2c2;
+ i2c3 = &i2c3;
+ i2c4 = &i2c4;
+ i2c5 = &i2c5;
+ };
+
+ memory@80000000 {
+ device_type = "memory";
+ reg = <0 0x80000000 0 0xc0000000>;
+ };
+};
+
+&serial0 {
+ status = "okay";
+};
+
+&serial1 {
+ status = "okay";
+};
+
+&i2c0 {
+ status = "okay";
+};
+
+&nand {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld20-ref.dts b/arch/arm64/boot/dts/socionext/uniphier-ld20-ref.dts
index fca4c479b469..1ca0c8620dc5 100644
--- a/arch/arm64/boot/dts/socionext/uniphier-ld20-ref.dts
+++ b/arch/arm64/boot/dts/socionext/uniphier-ld20-ref.dts
@@ -4,49 +4,13 @@
* Copyright (C) 2015-2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
/dts-v1/;
-/include/ "uniphier-ld20.dtsi"
-/include/ "uniphier-ref-daughter.dtsi"
-/include/ "uniphier-support-card.dtsi"
+#include "uniphier-ld20.dtsi"
+#include "uniphier-ref-daughter.dtsi"
+#include "uniphier-support-card.dtsi"
/ {
model = "UniPhier LD20 Reference Board";
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi b/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
index 6193f11acb78..a29c279b6e8e 100644
--- a/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
@@ -4,46 +4,10 @@
* Copyright (C) 2015-2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
- * This file is dual-licensed: you can use it either under the terms
- * of the GPL or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This file is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This file is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
*/
-/memreserve/ 0x80000000 0x00080000;
+/memreserve/ 0x80000000 0x02000000;
/ {
compatible = "socionext,uniphier-ld20";
@@ -116,35 +80,35 @@
compatible = "operating-points-v2";
opp-shared;
- opp@250000000 {
+ opp-250000000 {
opp-hz = /bits/ 64 <250000000>;
clock-latency-ns = <300>;
};
- opp@275000000 {
+ opp-275000000 {
opp-hz = /bits/ 64 <275000000>;
clock-latency-ns = <300>;
};
- opp@500000000 {
+ opp-500000000 {
opp-hz = /bits/ 64 <500000000>;
clock-latency-ns = <300>;
};
- opp@550000000 {
+ opp-550000000 {
opp-hz = /bits/ 64 <550000000>;
clock-latency-ns = <300>;
};
- opp@666667000 {
+ opp-666667000 {
opp-hz = /bits/ 64 <666667000>;
clock-latency-ns = <300>;
};
- opp@733334000 {
+ opp-733334000 {
opp-hz = /bits/ 64 <733334000>;
clock-latency-ns = <300>;
};
- opp@1000000000 {
+ opp-1000000000 {
opp-hz = /bits/ 64 <1000000000>;
clock-latency-ns = <300>;
};
- opp@1100000000 {
+ opp-1100000000 {
opp-hz = /bits/ 64 <1100000000>;
clock-latency-ns = <300>;
};
@@ -154,35 +118,35 @@
compatible = "operating-points-v2";
opp-shared;
- opp@250000000 {
+ opp-250000000 {
opp-hz = /bits/ 64 <250000000>;
clock-latency-ns = <300>;
};
- opp@275000000 {
+ opp-275000000 {
opp-hz = /bits/ 64 <275000000>;
clock-latency-ns = <300>;
};
- opp@500000000 {
+ opp-500000000 {
opp-hz = /bits/ 64 <500000000>;
clock-latency-ns = <300>;
};
- opp@550000000 {
+ opp-550000000 {
opp-hz = /bits/ 64 <550000000>;
clock-latency-ns = <300>;
};
- opp@666667000 {
+ opp-666667000 {
opp-hz = /bits/ 64 <666667000>;
clock-latency-ns = <300>;
};
- opp@733334000 {
+ opp-733334000 {
opp-hz = /bits/ 64 <733334000>;
clock-latency-ns = <300>;
};
- opp@1000000000 {
+ opp-1000000000 {
opp-hz = /bits/ 64 <1000000000>;
clock-latency-ns = <300>;
};
- opp@1100000000 {
+ opp-1100000000 {
opp-hz = /bits/ 64 <1100000000>;
clock-latency-ns = <300>;
};
@@ -255,6 +219,17 @@
clocks = <&peri_clk 3>;
};
+ adamv@57920000 {
+ compatible = "socionext,uniphier-ld20-adamv",
+ "simple-mfd", "syscon";
+ reg = <0x57920000 0x1000>;
+
+ adamv_rst: reset {
+ compatible = "socionext,uniphier-ld20-adamv-reset";
+ #reset-cells = <1>;
+ };
+ };
+
i2c0: i2c@58780000 {
compatible = "socionext,uniphier-fi2c";
status = "disabled";
@@ -337,7 +312,7 @@
pinctrl-0 = <&pinctrl_system_bus>;
};
- smpctrl@59800000 {
+ smpctrl@59801000 {
compatible = "socionext,uniphier-smpctrl";
reg = <0x59801000 0x400>;
};
@@ -345,7 +320,7 @@
sdctrl@59810000 {
compatible = "socionext,uniphier-ld20-sdctrl",
"simple-mfd", "syscon";
- reg = <0x59810000 0x800>;
+ reg = <0x59810000 0x400>;
sd_clk: clock {
compatible = "socionext,uniphier-ld20-sd-clock";
@@ -384,6 +359,11 @@
bus-width = <8>;
mmc-ddr-1_8v;
mmc-hs200-1_8v;
+ cdns,phy-input-delay-legacy = <4>;
+ cdns,phy-input-delay-mmc-highspeed = <2>;
+ cdns,phy-input-delay-mmc-ddr = <3>;
+ cdns,phy-dll-delay-sdclk = <21>;
+ cdns,phy-dll-delay-sdclk-hsmmc = <21>;
};
soc-glue@5f800000 {
@@ -396,6 +376,13 @@
};
};
+ aidet: aidet@5fc20000 {
+ compatible = "socionext,uniphier-ld20-aidet";
+ reg = <0x5fc20000 0x200>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
gic: interrupt-controller@5fe00000 {
compatible = "arm,gic-v3";
reg = <0x5fe00000 0x10000>, /* GICD */
@@ -419,8 +406,23 @@
compatible = "socionext,uniphier-ld20-reset";
#reset-cells = <1>;
};
+
+ watchdog {
+ compatible = "socionext,uniphier-wdt";
+ };
+ };
+
+ nand: nand@68000000 {
+ compatible = "socionext,uniphier-denali-nand-v5b";
+ status = "disabled";
+ reg-names = "nand_data", "denali_reg";
+ reg = <0x68000000 0x20>, <0x68100000 0x1000>;
+ interrupts = <0 65 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_nand>;
+ clocks = <&sys_clk 2>;
};
};
};
-/include/ "uniphier-pinctrl.dtsi"
+#include "uniphier-pinctrl.dtsi"
diff --git a/arch/arm64/boot/dts/socionext/uniphier-pinctrl.dtsi b/arch/arm64/boot/dts/socionext/uniphier-pinctrl.dtsi
index f42fb6f38bd3..9caabbb8bae3 120000..100644
--- a/arch/arm64/boot/dts/socionext/uniphier-pinctrl.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-pinctrl.dtsi
@@ -1 +1 @@
-../../../../arm/boot/dts/uniphier-pinctrl.dtsi \ No newline at end of file
+#include <arm/uniphier-pinctrl.dtsi>
diff --git a/arch/arm64/boot/dts/socionext/uniphier-pxs3-ref.dts b/arch/arm64/boot/dts/socionext/uniphier-pxs3-ref.dts
new file mode 100644
index 000000000000..d65f746a3f9d
--- /dev/null
+++ b/arch/arm64/boot/dts/socionext/uniphier-pxs3-ref.dts
@@ -0,0 +1,62 @@
+/*
+ * Device Tree Source for UniPhier PXs3 Reference Board
+ *
+ * Copyright (C) 2017 Socionext Inc.
+ * Author: Masahiro Yamada <yamada.masahiro@socionext.com>
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+/dts-v1/;
+#include "uniphier-pxs3.dtsi"
+#include "uniphier-support-card.dtsi"
+
+/ {
+ model = "UniPhier PXs3 Reference Board";
+ compatible = "socionext,uniphier-pxs3-ref", "socionext,uniphier-pxs3";
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ aliases {
+ serial0 = &serial0;
+ serial1 = &serial1;
+ serial2 = &serial2;
+ serial3 = &serial3;
+ i2c0 = &i2c0;
+ i2c1 = &i2c1;
+ i2c2 = &i2c2;
+ i2c3 = &i2c3;
+ i2c6 = &i2c6;
+ };
+
+ memory@80000000 {
+ device_type = "memory";
+ reg = <0 0x80000000 0 0xa0000000>;
+ };
+};
+
+&ethsc {
+ interrupts = <0 52 4>;
+};
+
+&serial0 {
+ status = "okay";
+};
+
+&i2c0 {
+ status = "okay";
+};
+
+&i2c1 {
+ status = "okay";
+};
+
+&i2c2 {
+ status = "okay";
+};
+
+&i2c3 {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi b/arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi
new file mode 100644
index 000000000000..384729fa740f
--- /dev/null
+++ b/arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi
@@ -0,0 +1,367 @@
+/*
+ * Device Tree Source for UniPhier PXs3 SoC
+ *
+ * Copyright (C) 2017 Socionext Inc.
+ * Author: Masahiro Yamada <yamada.masahiro@socionext.com>
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+/memreserve/ 0x80000000 0x02000000;
+
+/ {
+ compatible = "socionext,uniphier-pxs3";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ interrupt-parent = <&gic>;
+
+ cpus {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cpu-map {
+ cluster0 {
+ core0 {
+ cpu = <&cpu0>;
+ };
+ core1 {
+ cpu = <&cpu1>;
+ };
+ core2 {
+ cpu = <&cpu2>;
+ };
+ core3 {
+ cpu = <&cpu3>;
+ };
+ };
+ };
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0 0x000>;
+ clocks = <&sys_clk 33>;
+ enable-method = "psci";
+ operating-points-v2 = <&cluster0_opp>;
+ };
+
+ cpu1: cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0 0x001>;
+ clocks = <&sys_clk 33>;
+ enable-method = "psci";
+ operating-points-v2 = <&cluster0_opp>;
+ };
+
+ cpu2: cpu@2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0 0x002>;
+ clocks = <&sys_clk 33>;
+ enable-method = "psci";
+ operating-points-v2 = <&cluster0_opp>;
+ };
+
+ cpu3: cpu@3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0 0x003>;
+ clocks = <&sys_clk 33>;
+ enable-method = "psci";
+ operating-points-v2 = <&cluster0_opp>;
+ };
+ };
+
+ cluster0_opp: opp_table {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp-250000000 {
+ opp-hz = /bits/ 64 <250000000>;
+ clock-latency-ns = <300>;
+ };
+ opp-325000000 {
+ opp-hz = /bits/ 64 <325000000>;
+ clock-latency-ns = <300>;
+ };
+ opp-500000000 {
+ opp-hz = /bits/ 64 <500000000>;
+ clock-latency-ns = <300>;
+ };
+ opp-650000000 {
+ opp-hz = /bits/ 64 <650000000>;
+ clock-latency-ns = <300>;
+ };
+ opp-666667000 {
+ opp-hz = /bits/ 64 <666667000>;
+ clock-latency-ns = <300>;
+ };
+ opp-866667000 {
+ opp-hz = /bits/ 64 <866667000>;
+ clock-latency-ns = <300>;
+ };
+ opp-1000000000 {
+ opp-hz = /bits/ 64 <1000000000>;
+ clock-latency-ns = <300>;
+ };
+ opp-1300000000 {
+ opp-hz = /bits/ 64 <1300000000>;
+ clock-latency-ns = <300>;
+ };
+ };
+
+ psci {
+ compatible = "arm,psci-1.0";
+ method = "smc";
+ };
+
+ clocks {
+ refclk: ref {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <25000000>;
+ };
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <1 13 4>,
+ <1 14 4>,
+ <1 11 4>,
+ <1 10 4>;
+ };
+
+ soc@0 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0 0 0xffffffff>;
+
+ serial0: serial@54006800 {
+ compatible = "socionext,uniphier-uart";
+ status = "disabled";
+ reg = <0x54006800 0x40>;
+ interrupts = <0 33 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart0>;
+ clocks = <&peri_clk 0>;
+ };
+
+ serial1: serial@54006900 {
+ compatible = "socionext,uniphier-uart";
+ status = "disabled";
+ reg = <0x54006900 0x40>;
+ interrupts = <0 35 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart1>;
+ clocks = <&peri_clk 1>;
+ };
+
+ serial2: serial@54006a00 {
+ compatible = "socionext,uniphier-uart";
+ status = "disabled";
+ reg = <0x54006a00 0x40>;
+ interrupts = <0 37 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart2>;
+ clocks = <&peri_clk 2>;
+ };
+
+ serial3: serial@54006b00 {
+ compatible = "socionext,uniphier-uart";
+ status = "disabled";
+ reg = <0x54006b00 0x40>;
+ interrupts = <0 177 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart3>;
+ clocks = <&peri_clk 3>;
+ };
+
+ i2c0: i2c@58780000 {
+ compatible = "socionext,uniphier-fi2c";
+ status = "disabled";
+ reg = <0x58780000 0x80>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <0 41 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c0>;
+ clocks = <&peri_clk 4>;
+ clock-frequency = <100000>;
+ };
+
+ i2c1: i2c@58781000 {
+ compatible = "socionext,uniphier-fi2c";
+ status = "disabled";
+ reg = <0x58781000 0x80>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <0 42 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c1>;
+ clocks = <&peri_clk 5>;
+ clock-frequency = <100000>;
+ };
+
+ i2c2: i2c@58782000 {
+ compatible = "socionext,uniphier-fi2c";
+ status = "disabled";
+ reg = <0x58782000 0x80>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <0 43 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c2>;
+ clocks = <&peri_clk 6>;
+ clock-frequency = <100000>;
+ };
+
+ i2c3: i2c@58783000 {
+ compatible = "socionext,uniphier-fi2c";
+ status = "disabled";
+ reg = <0x58783000 0x80>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <0 44 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c3>;
+ clocks = <&peri_clk 7>;
+ clock-frequency = <100000>;
+ };
+
+ /* chip-internal connection for HDMI */
+ i2c6: i2c@58786000 {
+ compatible = "socionext,uniphier-fi2c";
+ reg = <0x58786000 0x80>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <0 26 4>;
+ clocks = <&peri_clk 10>;
+ clock-frequency = <400000>;
+ };
+
+ system_bus: system-bus@58c00000 {
+ compatible = "socionext,uniphier-system-bus";
+ status = "disabled";
+ reg = <0x58c00000 0x400>;
+ #address-cells = <2>;
+ #size-cells = <1>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_system_bus>;
+ };
+
+ smpctrl@59801000 {
+ compatible = "socionext,uniphier-smpctrl";
+ reg = <0x59801000 0x400>;
+ };
+
+ sdctrl@59810000 {
+ compatible = "socionext,uniphier-pxs3-sdctrl",
+ "simple-mfd", "syscon";
+ reg = <0x59810000 0x400>;
+
+ sd_clk: clock {
+ compatible = "socionext,uniphier-pxs3-sd-clock";
+ #clock-cells = <1>;
+ };
+
+ sd_rst: reset {
+ compatible = "socionext,uniphier-pxs3-sd-reset";
+ #reset-cells = <1>;
+ };
+ };
+
+ perictrl@59820000 {
+ compatible = "socionext,uniphier-pxs3-perictrl",
+ "simple-mfd", "syscon";
+ reg = <0x59820000 0x200>;
+
+ peri_clk: clock {
+ compatible = "socionext,uniphier-pxs3-peri-clock";
+ #clock-cells = <1>;
+ };
+
+ peri_rst: reset {
+ compatible = "socionext,uniphier-pxs3-peri-reset";
+ #reset-cells = <1>;
+ };
+ };
+
+ emmc: sdhc@5a000000 {
+ compatible = "socionext,uniphier-sd4hc", "cdns,sd4hc";
+ reg = <0x5a000000 0x400>;
+ interrupts = <0 78 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_emmc>;
+ clocks = <&sys_clk 4>;
+ bus-width = <8>;
+ mmc-ddr-1_8v;
+ mmc-hs200-1_8v;
+ cdns,phy-input-delay-legacy = <4>;
+ cdns,phy-input-delay-mmc-highspeed = <2>;
+ cdns,phy-input-delay-mmc-ddr = <3>;
+ cdns,phy-dll-delay-sdclk = <21>;
+ cdns,phy-dll-delay-sdclk-hsmmc = <21>;
+ };
+
+ soc-glue@5f800000 {
+ compatible = "socionext,uniphier-pxs3-soc-glue",
+ "simple-mfd", "syscon";
+ reg = <0x5f800000 0x2000>;
+
+ pinctrl: pinctrl {
+ compatible = "socionext,uniphier-pxs3-pinctrl";
+ };
+ };
+
+ aidet: aidet@5fc20000 {
+ compatible = "socionext,uniphier-pxs3-aidet";
+ reg = <0x5fc20000 0x200>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gic: interrupt-controller@5fe00000 {
+ compatible = "arm,gic-v3";
+ reg = <0x5fe00000 0x10000>, /* GICD */
+ <0x5fe80000 0x80000>; /* GICR */
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ interrupts = <1 9 4>;
+ };
+
+ sysctrl@61840000 {
+ compatible = "socionext,uniphier-pxs3-sysctrl",
+ "simple-mfd", "syscon";
+ reg = <0x61840000 0x10000>;
+
+ sys_clk: clock {
+ compatible = "socionext,uniphier-pxs3-clock";
+ #clock-cells = <1>;
+ };
+
+ sys_rst: reset {
+ compatible = "socionext,uniphier-pxs3-reset";
+ #reset-cells = <1>;
+ };
+
+ watchdog {
+ compatible = "socionext,uniphier-wdt";
+ };
+ };
+
+ nand: nand@68000000 {
+ compatible = "socionext,uniphier-denali-nand-v5b";
+ status = "disabled";
+ reg-names = "nand_data", "denali_reg";
+ reg = <0x68000000 0x20>, <0x68100000 0x1000>;
+ interrupts = <0 65 4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_nand>;
+ clocks = <&sys_clk 2>;
+ };
+ };
+};
+
+#include "uniphier-pinctrl.dtsi"
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ref-daughter.dtsi b/arch/arm64/boot/dts/socionext/uniphier-ref-daughter.dtsi
index 4685a8d89cba..e66d999d9f5d 120000..100644
--- a/arch/arm64/boot/dts/socionext/uniphier-ref-daughter.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-ref-daughter.dtsi
@@ -1 +1 @@
-../../../../arm/boot/dts/uniphier-ref-daughter.dtsi \ No newline at end of file
+#include <arm/uniphier-ref-daughter.dtsi>
diff --git a/arch/arm64/boot/dts/socionext/uniphier-support-card.dtsi b/arch/arm64/boot/dts/socionext/uniphier-support-card.dtsi
index 1246db9be2a1..28c5b4ed1d95 120000..100644
--- a/arch/arm64/boot/dts/socionext/uniphier-support-card.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-support-card.dtsi
@@ -1 +1 @@
-../../../../arm/boot/dts/uniphier-support-card.dtsi \ No newline at end of file
+#include <arm/uniphier-support-card.dtsi>
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-ep108-clk.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp-ep108-clk.dtsi
index cdc6a437dcc7..b87b8316f4ac 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-ep108-clk.dtsi
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-ep108-clk.dtsi
@@ -11,7 +11,7 @@
* the License, or (at your option) any later version.
*/
-&amba {
+/ {
misc_clk: misc_clk {
compatible = "fixed-clock";
#clock-cells = <0>;
@@ -29,12 +29,60 @@
#clock-cells = <0>;
clock-frequency = <75000000>;
};
+
+ clk100: clk100 {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <100000000>;
+ };
+
+ clk600: clk600 {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <600000000>;
+ };
};
&can0 {
clocks = <&misc_clk &misc_clk>;
};
+&can1 {
+ clocks = <&misc_clk &misc_clk>;
+};
+
+&fpd_dma_chan1 {
+ clocks = <&clk600>, <&clk100>;
+};
+
+&fpd_dma_chan2 {
+ clocks = <&clk600>, <&clk100>;
+};
+
+&fpd_dma_chan3 {
+ clocks = <&clk600>, <&clk100>;
+};
+
+&fpd_dma_chan4 {
+ clocks = <&clk600>, <&clk100>;
+};
+
+&fpd_dma_chan5 {
+ clocks = <&clk600>, <&clk100>;
+};
+
+&fpd_dma_chan6 {
+ clocks = <&clk600>, <&clk100>;
+};
+
+&fpd_dma_chan7 {
+ clocks = <&clk600>, <&clk100>;
+};
+
+&fpd_dma_chan8 {
+ clocks = <&clk600>, <&clk100>;
+};
+
&gem0 {
clocks = <&misc_clk>, <&misc_clk>, <&misc_clk>;
};
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-ep108.dts b/arch/arm64/boot/dts/xilinx/zynqmp-ep108.dts
index ef1b9e573af0..bf552674a834 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-ep108.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-ep108.dts
@@ -13,13 +13,15 @@
/dts-v1/;
-/include/ "zynqmp.dtsi"
-/include/ "zynqmp-ep108-clk.dtsi"
+#include "zynqmp.dtsi"
+#include "zynqmp-ep108-clk.dtsi"
/ {
model = "ZynqMP EP108";
aliases {
+ mmc0 = &sdhci0;
+ mmc1 = &sdhci1;
serial0 = &uart0;
};
@@ -37,6 +39,10 @@
status = "okay";
};
+&can1 {
+ status = "okay";
+};
+
&gem0 {
status = "okay";
phy-handle = <&phy0>;
@@ -55,7 +61,7 @@
status = "okay";
clock-frequency = <400000>;
eeprom@54 {
- compatible = "at,24c64";
+ compatible = "atmel,24c64";
reg = <0x54>;
};
};
@@ -64,7 +70,7 @@
status = "okay";
clock-frequency = <400000>;
eeprom@55 {
- compatible = "at,24c64";
+ compatible = "atmel,24c64";
reg = <0x55>;
};
};
@@ -92,7 +98,7 @@
spi-max-frequency = <50000000>;
reg = <0>;
- spi0_flash0@00000000 {
+ spi0_flash0@0 {
label = "spi0_flash0";
reg = <0x0 0x100000>;
};
@@ -109,7 +115,7 @@
spi-max-frequency = <50000000>;
reg = <0>;
- spi1_flash0@00000000 {
+ spi1_flash0@0 {
label = "spi1_flash0";
reg = <0x0 0x100000>;
};
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
index 54dc28351c8c..7665fbddff28 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
+++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
@@ -20,33 +20,84 @@
#address-cells = <1>;
#size-cells = <0>;
- cpu@0 {
+ cpu0: cpu@0 {
compatible = "arm,cortex-a53", "arm,armv8";
device_type = "cpu";
enable-method = "psci";
+ operating-points-v2 = <&cpu_opp_table>;
reg = <0x0>;
+ cpu-idle-states = <&CPU_SLEEP_0>;
};
- cpu@1 {
+ cpu1: cpu@1 {
compatible = "arm,cortex-a53", "arm,armv8";
device_type = "cpu";
enable-method = "psci";
reg = <0x1>;
+ operating-points-v2 = <&cpu_opp_table>;
+ cpu-idle-states = <&CPU_SLEEP_0>;
};
- cpu@2 {
+ cpu2: cpu@2 {
compatible = "arm,cortex-a53", "arm,armv8";
device_type = "cpu";
enable-method = "psci";
reg = <0x2>;
+ operating-points-v2 = <&cpu_opp_table>;
+ cpu-idle-states = <&CPU_SLEEP_0>;
};
- cpu@3 {
+ cpu3: cpu@3 {
compatible = "arm,cortex-a53", "arm,armv8";
device_type = "cpu";
enable-method = "psci";
reg = <0x3>;
+ operating-points-v2 = <&cpu_opp_table>;
+ cpu-idle-states = <&CPU_SLEEP_0>;
};
+
+ idle-states {
+ entry-method = "arm,psci";
+
+ CPU_SLEEP_0: cpu-sleep-0 {
+ compatible = "arm,idle-state";
+ arm,psci-suspend-param = <0x40000000>;
+ local-timer-stop;
+ entry-latency-us = <300>;
+ exit-latency-us = <600>;
+ min-residency-us = <10000>;
+ };
+ };
+ };
+
+ cpu_opp_table: cpu_opp_table {
+ compatible = "operating-points-v2";
+ opp-shared;
+ opp00 {
+ opp-hz = /bits/ 64 <1199999988>;
+ opp-microvolt = <1000000>;
+ clock-latency-ns = <500000>;
+ };
+ opp01 {
+ opp-hz = /bits/ 64 <599999994>;
+ opp-microvolt = <1000000>;
+ clock-latency-ns = <500000>;
+ };
+ opp02 {
+ opp-hz = /bits/ 64 <399999996>;
+ opp-microvolt = <1000000>;
+ clock-latency-ns = <500000>;
+ };
+ opp03 {
+ opp-hz = /bits/ 64 <299999997>;
+ opp-microvolt = <1000000>;
+ clock-latency-ns = <500000>;
+ };
+ };
+
+ dcc: dcc {
+ compatible = "arm,dcc";
+ status = "disabled";
};
pmu {
@@ -119,6 +170,190 @@
rx-fifo-depth = <0x40>;
};
+ cci: cci@fd6e0000 {
+ compatible = "arm,cci-400";
+ reg = <0x0 0xfd6e0000 0x0 0x9000>;
+ ranges = <0x0 0x0 0xfd6e0000 0x10000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ pmu@9000 {
+ compatible = "arm,cci-400-pmu,r1";
+ reg = <0x9000 0x5000>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 123 4>,
+ <0 123 4>,
+ <0 123 4>,
+ <0 123 4>,
+ <0 123 4>;
+ };
+ };
+
+ /* GDMA */
+ fpd_dma_chan1: dma@fd500000 {
+ status = "disabled";
+ compatible = "xlnx,zynqmp-dma-1.0";
+ reg = <0x0 0xfd500000 0x0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 124 4>;
+ clock-names = "clk_main", "clk_apb";
+ xlnx,bus-width = <128>;
+ };
+
+ fpd_dma_chan2: dma@fd510000 {
+ status = "disabled";
+ compatible = "xlnx,zynqmp-dma-1.0";
+ reg = <0x0 0xfd510000 0x0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 125 4>;
+ clock-names = "clk_main", "clk_apb";
+ xlnx,bus-width = <128>;
+ };
+
+ fpd_dma_chan3: dma@fd520000 {
+ status = "disabled";
+ compatible = "xlnx,zynqmp-dma-1.0";
+ reg = <0x0 0xfd520000 0x0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 126 4>;
+ clock-names = "clk_main", "clk_apb";
+ xlnx,bus-width = <128>;
+ };
+
+ fpd_dma_chan4: dma@fd530000 {
+ status = "disabled";
+ compatible = "xlnx,zynqmp-dma-1.0";
+ reg = <0x0 0xfd530000 0x0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 127 4>;
+ clock-names = "clk_main", "clk_apb";
+ xlnx,bus-width = <128>;
+ };
+
+ fpd_dma_chan5: dma@fd540000 {
+ status = "disabled";
+ compatible = "xlnx,zynqmp-dma-1.0";
+ reg = <0x0 0xfd540000 0x0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 128 4>;
+ clock-names = "clk_main", "clk_apb";
+ xlnx,bus-width = <128>;
+ };
+
+ fpd_dma_chan6: dma@fd550000 {
+ status = "disabled";
+ compatible = "xlnx,zynqmp-dma-1.0";
+ reg = <0x0 0xfd550000 0x0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 129 4>;
+ clock-names = "clk_main", "clk_apb";
+ xlnx,bus-width = <128>;
+ };
+
+ fpd_dma_chan7: dma@fd560000 {
+ status = "disabled";
+ compatible = "xlnx,zynqmp-dma-1.0";
+ reg = <0x0 0xfd560000 0x0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 130 4>;
+ clock-names = "clk_main", "clk_apb";
+ xlnx,bus-width = <128>;
+ };
+
+ fpd_dma_chan8: dma@fd570000 {
+ status = "disabled";
+ compatible = "xlnx,zynqmp-dma-1.0";
+ reg = <0x0 0xfd570000 0x0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 131 4>;
+ clock-names = "clk_main", "clk_apb";
+ xlnx,bus-width = <128>;
+ };
+
+ /* LPDDMA default allows only secured access. inorder to enable
+ * These dma channels, Users should ensure that these dma
+ * Channels are allowed for non secure access.
+ */
+ lpd_dma_chan1: dma@ffa80000 {
+ status = "disabled";
+ compatible = "xlnx,zynqmp-dma-1.0";
+ reg = <0x0 0xffa80000 0x0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 77 4>;
+ clock-names = "clk_main", "clk_apb";
+ xlnx,bus-width = <64>;
+ };
+
+ lpd_dma_chan2: dma@ffa90000 {
+ status = "disabled";
+ compatible = "xlnx,zynqmp-dma-1.0";
+ reg = <0x0 0xffa90000 0x0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 78 4>;
+ clock-names = "clk_main", "clk_apb";
+ xlnx,bus-width = <64>;
+ };
+
+ lpd_dma_chan3: dma@ffaa0000 {
+ status = "disabled";
+ compatible = "xlnx,zynqmp-dma-1.0";
+ reg = <0x0 0xffaa0000 0x0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 79 4>;
+ clock-names = "clk_main", "clk_apb";
+ xlnx,bus-width = <64>;
+ };
+
+ lpd_dma_chan4: dma@ffab0000 {
+ status = "disabled";
+ compatible = "xlnx,zynqmp-dma-1.0";
+ reg = <0x0 0xffab0000 0x0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 80 4>;
+ clock-names = "clk_main", "clk_apb";
+ xlnx,bus-width = <64>;
+ };
+
+ lpd_dma_chan5: dma@ffac0000 {
+ status = "disabled";
+ compatible = "xlnx,zynqmp-dma-1.0";
+ reg = <0x0 0xffac0000 0x0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 81 4>;
+ clock-names = "clk_main", "clk_apb";
+ xlnx,bus-width = <64>;
+ };
+
+ lpd_dma_chan6: dma@ffad0000 {
+ status = "disabled";
+ compatible = "xlnx,zynqmp-dma-1.0";
+ reg = <0x0 0xffad0000 0x0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 82 4>;
+ clock-names = "clk_main", "clk_apb";
+ xlnx,bus-width = <64>;
+ };
+
+ lpd_dma_chan7: dma@ffae0000 {
+ status = "disabled";
+ compatible = "xlnx,zynqmp-dma-1.0";
+ reg = <0x0 0xffae0000 0x0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 83 4>;
+ clock-names = "clk_main", "clk_apb";
+ xlnx,bus-width = <64>;
+ };
+
+ lpd_dma_chan8: dma@ffaf0000 {
+ status = "disabled";
+ compatible = "xlnx,zynqmp-dma-1.0";
+ reg = <0x0 0xffaf0000 0x0 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 84 4>;
+ clock-names = "clk_main", "clk_apb";
+ xlnx,bus-width = <64>;
+ };
+
gem0: ethernet@ff0b0000 {
compatible = "cdns,gem";
status = "disabled";
@@ -215,12 +450,9 @@
<0x0 0xfd480000 0x0 0x1000>,
<0x80 0x00000000 0x0 0x1000000>;
reg-names = "breg", "pcireg", "cfg";
- ranges = <0x02000000 0x00000000 0xe0000000 0x00000000
- 0xe0000000 0x00000000 0x10000000
- /* non-prefetchable memory */
- 0x43000000 0x00000006 0x00000000 0x00000006
- 0x00000000 0x00000002 0x00000000>;
- /* prefetchable memory */
+ ranges = <0x02000000 0x00000000 0xe0000000 0x00000000 0xe0000000 0x00000000 0x10000000 /* non-prefetchable memory */
+ 0x43000000 0x00000006 0x00000000 0x00000006 0x00000000 0x00000002 0x00000000>;/* prefetchable memory */
+ bus-range = <0x00 0xff>;
interrupt-map-mask = <0x0 0x0 0x0 0x7>;
interrupt-map = <0x0 0x0 0x0 0x1 &pcie_intc 0x1>,
<0x0 0x0 0x0 0x2 &pcie_intc 0x2>,
@@ -233,6 +465,16 @@
};
};
+ rtc: rtc@ffa60000 {
+ compatible = "xlnx,zynqmp-rtc";
+ status = "disabled";
+ reg = <0x0 0xffa60000 0x0 0x100>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 26 4>, <0 27 4>;
+ interrupt-names = "alarm", "sec";
+ calibration = <0x8000>;
+ };
+
sata: ahci@fd0c0000 {
compatible = "ceva,ahci-1v84";
status = "disabled";
@@ -262,13 +504,14 @@
smmu: smmu@fd800000 {
compatible = "arm,mmu-500";
reg = <0x0 0xfd800000 0x0 0x20000>;
+ status = "disabled";
#global-interrupts = <1>;
interrupt-parent = <&gic>;
- interrupts = <0 157 4>,
- <0 157 4>, <0 157 4>, <0 157 4>, <0 157 4>,
- <0 157 4>, <0 157 4>, <0 157 4>, <0 157 4>,
- <0 157 4>, <0 157 4>, <0 157 4>, <0 157 4>,
- <0 157 4>, <0 157 4>, <0 157 4>, <0 157 4>;
+ interrupts = <0 155 4>,
+ <0 155 4>, <0 155 4>, <0 155 4>, <0 155 4>,
+ <0 155 4>, <0 155 4>, <0 155 4>, <0 155 4>,
+ <0 155 4>, <0 155 4>, <0 155 4>, <0 155 4>,
+ <0 155 4>, <0 155 4>, <0 155 4>, <0 155 4>;
};
spi0: spi@ff040000 {
@@ -330,7 +573,7 @@
};
uart0: serial@ff000000 {
- compatible = "cdns,uart-r1p8";
+ compatible = "cdns,uart-r1p12", "xlnx,xuartps";
status = "disabled";
interrupt-parent = <&gic>;
interrupts = <0 21 4>;
@@ -339,7 +582,7 @@
};
uart1: serial@ff010000 {
- compatible = "cdns,uart-r1p8";
+ compatible = "cdns,uart-r1p12", "xlnx,xuartps";
status = "disabled";
interrupt-parent = <&gic>;
interrupts = <0 22 4>;
diff --git a/arch/arm64/boot/dts/zte/Makefile b/arch/arm64/boot/dts/zte/Makefile
index 667806620f59..d86c4def6bc9 100644
--- a/arch/arm64/boot/dts/zte/Makefile
+++ b/arch/arm64/boot/dts/zte/Makefile
@@ -1,4 +1,5 @@
dtb-$(CONFIG_ARCH_ZX) += zx296718-evb.dtb
+dtb-$(CONFIG_ARCH_ZX) += zx296718-pcbox.dtb
always := $(dtb-y)
subdir-y := $(dts-dirs)
diff --git a/arch/arm64/boot/dts/zte/zx296718-evb.dts b/arch/arm64/boot/dts/zte/zx296718-evb.dts
index bb900d2bbcfb..cb2519ecd724 100644
--- a/arch/arm64/boot/dts/zte/zx296718-evb.dts
+++ b/arch/arm64/boot/dts/zte/zx296718-evb.dts
@@ -57,16 +57,28 @@
reg = <0x40000000 0x40000000>;
};
- sound0 {
- compatible = "simple-audio-card";
- simple-audio-card,name = "zx_snd_spdif0";
+ sound-spdif0 {
+ compatible = "audio-graph-card";
+ dais = <&spdif0_port>;
+ };
- simple-audio-card,cpu {
- sound-dai = <&spdif0>;
- };
+ sound-i2s0 {
+ compatible = "audio-graph-card";
+ dais = <&i2s0_port>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&amplifier_pins>;
+ pa-gpios = <&bgpio4 0 GPIO_ACTIVE_HIGH>;
+ widgets = "Line", "Line Out Jack";
+ routing = "Amplifier", "LINEOUTL",
+ "Amplifier", "LINEOUTR",
+ "Line Out Jack", "Amplifier";
+ };
+};
- simple-audio-card,codec {
- sound-dai = <&hdmi>;
+&aud96p22 {
+ port {
+ aud96p22_endpoint: endpoint {
+ remote-endpoint = <&i2s0_endpoint>;
};
};
};
@@ -77,6 +89,36 @@
&hdmi {
status = "okay";
+
+ port {
+ hdmi_endpoint: endpoint {
+ remote-endpoint = <&spdif0_endpoint>;
+ };
+ };
+};
+
+&i2c0 {
+ status = "okay";
+};
+
+&i2s0 {
+ status = "okay";
+
+ i2s0_port: port {
+ i2s0_endpoint: endpoint {
+ remote-endpoint = <&aud96p22_endpoint>;
+ dai-format = "i2s";
+ frame-master;
+ bitclock-master;
+ };
+ };
+};
+
+&pmm {
+ amplifier_pins: amplifier {
+ pins = "TSI3_DATA";
+ function = "BGPIO";
+ };
};
&sd1 {
@@ -85,6 +127,16 @@
&spdif0 {
status = "okay";
+
+ spdif0_port: port {
+ spdif0_endpoint: endpoint {
+ remote-endpoint = <&hdmi_endpoint>;
+ };
+ };
+};
+
+&tvenc {
+ status = "okay";
};
&uart0 {
diff --git a/arch/arm64/boot/dts/zte/zx296718-pcbox.dts b/arch/arm64/boot/dts/zte/zx296718-pcbox.dts
new file mode 100644
index 000000000000..e02509f7082b
--- /dev/null
+++ b/arch/arm64/boot/dts/zte/zx296718-pcbox.dts
@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2017 Sanechips Technology Co., Ltd.
+ * Copyright 2017 Linaro Ltd.
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+/dts-v1/;
+#include "zx296718.dtsi"
+#include <dt-bindings/pwm/pwm.h>
+
+/ {
+ model = "ZTE ZX296718 PCBOX Board";
+ compatible = "zte,zx296718-pcbox", "zte,zx296718";
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ memory@80000000 {
+ device_type = "memory";
+ reg = <0x80000000 0x80000000>;
+ };
+
+ a53_vdd0v9: regulator-a53 {
+ compatible = "pwm-regulator";
+ pwms = <&pwm 3 1250 PWM_POLARITY_INVERTED>;
+ regulator-name = "A53_VDD0V9";
+ regulator-min-microvolt = <855000>;
+ regulator-max-microvolt = <1183000>;
+ pwm-dutycycle-unit = <100>;
+ pwm-dutycycle-range = <0 100>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ sound-spdif0 {
+ compatible = "audio-graph-card";
+ dais = <&spdif0_port>;
+ };
+
+ sound-i2s0 {
+ compatible = "audio-graph-card";
+ dais = <&i2s0_port>;
+ };
+};
+
+&aud96p22 {
+ port {
+ aud96p22_endpoint: endpoint {
+ remote-endpoint = <&i2s0_endpoint>;
+ };
+ };
+};
+
+&cpu0 {
+ cpu-supply = <&a53_vdd0v9>;
+};
+
+&emmc {
+ status = "okay";
+};
+
+&hdmi {
+ status = "disabled";
+
+ port {
+ hdmi_endpoint: endpoint {
+ remote-endpoint = <&spdif0_endpoint>;
+ };
+ };
+};
+
+&i2c0 {
+ status = "okay";
+};
+
+&i2s0 {
+ status = "okay";
+
+ i2s0_port: port {
+ i2s0_endpoint: endpoint {
+ remote-endpoint = <&aud96p22_endpoint>;
+ dai-format = "i2s";
+ frame-master;
+ bitclock-master;
+ };
+ };
+};
+
+&irdec {
+ status = "okay";
+};
+
+&pmm {
+ pwm3_pins: pwm3 {
+ pins = "KEY_ROW2";
+ function = "PWM";
+ };
+
+ vga_pins: vga {
+ pins = "KEY_COL1", "KEY_COL2", "VGA_HS", "VGA_VS";
+ function = "VGA";
+ };
+};
+
+&pwm {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm3_pins>;
+ status = "okay";
+};
+
+&sd0 {
+ status = "okay";
+};
+
+&sd1 {
+ status = "okay";
+};
+
+&spdif0 {
+ status = "okay";
+
+ spdif0_port: port {
+ spdif0_endpoint: endpoint {
+ remote-endpoint = <&hdmi_endpoint>;
+ };
+ };
+};
+
+&tvenc {
+ status = "disabled";
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&vga {
+ pinctrl-names = "default";
+ pinctrl-0 = <&vga_pins>;
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/zte/zx296718.dtsi b/arch/arm64/boot/dts/zte/zx296718.dtsi
index 316dc713268c..6eef64761009 100644
--- a/arch/arm64/boot/dts/zte/zx296718.dtsi
+++ b/arch/arm64/boot/dts/zte/zx296718.dtsi
@@ -53,6 +53,13 @@
interrupt-parent = <&gic>;
aliases {
+ gpio0 = &bgpio0;
+ gpio1 = &bgpio1;
+ gpio2 = &bgpio2;
+ gpio3 = &bgpio3;
+ gpio4 = &bgpio4;
+ gpio5 = &bgpio5;
+ gpio6 = &bgpio6;
serial0 = &uart0;
};
@@ -118,28 +125,33 @@
compatible = "operating-points-v2";
opp-shared;
- opp@500000000 {
+ opp-500000000 {
opp-hz = /bits/ 64 <500000000>;
+ opp-microvolt = <866000>;
clock-latency-ns = <500000>;
};
- opp@648000000 {
+ opp-648000000 {
opp-hz = /bits/ 64 <648000000>;
+ opp-microvolt = <866000>;
clock-latency-ns = <500000>;
};
- opp@800000000 {
+ opp-800000000 {
opp-hz = /bits/ 64 <800000000>;
+ opp-microvolt = <888000>;
clock-latency-ns = <500000>;
};
- opp@1000000000 {
+ opp-1000000000 {
opp-hz = /bits/ 64 <1000000000>;
+ opp-microvolt = <898000>;
clock-latency-ns = <500000>;
};
- opp@1188000000 {
+ opp-1188000000 {
opp-hz = /bits/ 64 <1188000000>;
+ opp-microvolt = <1015000>;
clock-latency-ns = <500000>;
};
};
@@ -283,11 +295,23 @@
compatible = "simple-bus";
ranges;
+ irdec: ir-decoder@111000 {
+ compatible = "zte,zx296718-irdec";
+ reg = <0x111000 0x1000>;
+ interrupts = <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
aon_sysctrl: aon-sysctrl@116000 {
compatible = "zte,zx296718-aon-sysctrl", "syscon";
reg = <0x116000 0x1000>;
};
+ iocfg: pin-controller@119000 {
+ compatible = "zte,zx296718-iocfg";
+ reg = <0x119000 0x1000>;
+ };
+
uart0: uart@11f000 {
compatible = "arm,pl011", "arm,primecell";
arm,primecell-periphid = <0x001feffe>;
@@ -311,7 +335,6 @@
clock-frequency = <50000000>;
clocks = <&topcrm SD0_AHB>, <&topcrm SD0_WCLK>;
clock-names = "biu", "ciu";
- num-slots = <1>;
max-frequency = <50000000>;
cap-sdio-irq;
cap-sd-highspeed;
@@ -336,7 +359,6 @@
clock-frequency = <167000000>;
clocks = <&topcrm SD1_AHB>, <&topcrm SD1_WCLK>;
clock-names = "biu", "ciu";
- num-slots = <1>;
max-frequency = <167000000>;
cap-sdio-irq;
cap-sd-highspeed;
@@ -360,12 +382,109 @@
#clock-cells = <1>;
};
+ bgpio0: gpio@142d000 {
+ compatible = "zte,zx296718-gpio", "zte,zx296702-gpio";
+ reg = <0x142d000 0x40>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmm 0 48 16>;
+ interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&gic>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ bgpio1: gpio@142d040 {
+ compatible = "zte,zx296718-gpio", "zte,zx296702-gpio";
+ reg = <0x142d040 0x40>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmm 0 80 16>;
+ interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&gic>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ bgpio2: gpio@142d080 {
+ compatible = "zte,zx296718-gpio", "zte,zx296702-gpio";
+ reg = <0x142d080 0x40>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmm 0 80 3
+ &pmm 3 32 4
+ &pmm 7 83 9>;
+ interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&gic>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ bgpio3: gpio@142d0c0 {
+ compatible = "zte,zx296718-gpio", "zte,zx296702-gpio";
+ reg = <0x142d0c0 0x40>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmm 0 92 16>;
+ interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&gic>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ bgpio4: gpio@142d100 {
+ compatible = "zte,zx296718-gpio", "zte,zx296702-gpio";
+ reg = <0x142d100 0x40>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmm 0 108 12
+ &pmm 12 121 4>;
+ interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&gic>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ bgpio5: gpio@142d140 {
+ compatible = "zte,zx296718-gpio", "zte,zx296702-gpio";
+ reg = <0x142d140 0x40>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmm 0 125 16>;
+ interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&gic>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ bgpio6: gpio@142d180 {
+ compatible = "zte,zx296718-gpio", "zte,zx296702-gpio";
+ reg = <0x142d180 0x40>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pmm 0 141 2>;
+ interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&gic>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
lsp1crm: clock-controller@1430000 {
compatible = "zte,zx296718-lsp1crm";
reg = <0x01430000 0x1000>;
#clock-cells = <1>;
};
+ pwm: pwm@1439000 {
+ compatible = "zte,zx296718-pwm";
+ reg = <0x1439000 0x1000>;
+ clocks = <&lsp1crm LSP1_PWM_PCLK>,
+ <&lsp1crm LSP1_PWM_WCLK>;
+ clock-names = "pclk", "wclk";
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
vou: vou@1440000 {
compatible = "zte,zx296718-vou";
#address-cells = <1>;
@@ -387,6 +506,16 @@
"main_wclk", "aux_wclk";
};
+ vga: vga@8000 {
+ compatible = "zte,zx296718-vga";
+ reg = <0x8000 0x1000>;
+ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&topcrm VGA_I2C_WCLK>;
+ clock-names = "i2c_wclk";
+ zte,vga-power-control = <&sysctrl 0x170 0xe0>;
+ status = "disabled";
+ };
+
hdmi: hdmi@c000 {
compatible = "zte,zx296718-hdmi";
reg = <0xc000 0x4000>;
@@ -413,6 +542,12 @@
#clock-cells = <1>;
};
+ pmm: pin-controller@1462000 {
+ compatible = "zte,zx296718-pmm";
+ reg = <0x1462000 0x1000>;
+ zte,auxiliary-controller = <&iocfg>;
+ };
+
sysctrl: sysctrl@1463000 {
compatible = "zte,zx296718-sysctrl", "syscon";
reg = <0x1463000 0x1000>;
@@ -445,6 +580,38 @@
#clock-cells = <1>;
};
+ i2s0: i2s@1482000 {
+ compatible = "zte,zx296718-i2s", "zte,zx296702-i2s";
+ reg = <0x01482000 0x1000>;
+ clocks = <&audiocrm AUDIO_I2S0_WCLK>,
+ <&audiocrm AUDIO_I2S0_PCLK>;
+ clock-names = "wclk", "pclk";
+ assigned-clocks = <&audiocrm I2S0_WCLK_MUX>;
+ assigned-clock-parents = <&topcrm AUDIO_99M>;
+ interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma 22>, <&dma 23>;
+ dma-names = "tx", "rx";
+ #sound-dai-cells = <0>;
+ status = "disabled";
+ };
+
+ i2c0: i2c@1486000 {
+ compatible = "zte,zx296718-i2c";
+ reg = <0x01486000 0x1000>;
+ interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&audiocrm AUDIO_I2C0_WCLK>;
+ clock-frequency = <1600000>;
+ status = "disabled";
+
+ aud96p22: codec@22 {
+ compatible = "zte,zx-aud96p22";
+ #sound-dai-cells = <0>;
+ reg = <0x22>;
+ };
+ };
+
spdif0: spdif@1488000 {
compatible = "zte,zx296702-spdif";
reg = <0x1488000 0x1000>;
diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 97c123e09e45..34480e9af2e7 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -3,6 +3,7 @@ CONFIG_POSIX_MQUEUE=y
CONFIG_AUDIT=y
CONFIG_NO_HZ_IDLE=y
CONFIG_HIGH_RES_TIMERS=y
+CONFIG_IRQ_TIME_ACCOUNTING=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
@@ -36,6 +37,7 @@ CONFIG_ARCH_ALPINE=y
CONFIG_ARCH_BCM2835=y
CONFIG_ARCH_BCM_IPROC=y
CONFIG_ARCH_BERLIN=y
+CONFIG_ARCH_BRCMSTB=y
CONFIG_ARCH_EXYNOS=y
CONFIG_ARCH_LAYERSCAPE=y
CONFIG_ARCH_LG1K=y
@@ -56,15 +58,18 @@ CONFIG_ARCH_THUNDER=y
CONFIG_ARCH_THUNDER2=y
CONFIG_ARCH_UNIPHIER=y
CONFIG_ARCH_VEXPRESS=y
-CONFIG_ARCH_VULCAN=y
CONFIG_ARCH_XGENE=y
CONFIG_ARCH_ZX=y
CONFIG_ARCH_ZYNQMP=y
CONFIG_PCI=y
+CONFIG_HOTPLUG_PCI_PCIE=y
CONFIG_PCI_IOV=y
+CONFIG_HOTPLUG_PCI=y
+CONFIG_HOTPLUG_PCI_ACPI=y
CONFIG_PCI_LAYERSCAPE=y
CONFIG_PCI_HISI=y
CONFIG_PCIE_QCOM=y
+CONFIG_PCIE_KIRIN=y
CONFIG_PCIE_ARMADA_8K=y
CONFIG_PCI_AARDVARK=y
CONFIG_PCIE_RCAR=y
@@ -85,11 +90,13 @@ CONFIG_XEN=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
CONFIG_COMPAT=y
CONFIG_HIBERNATION=y
+CONFIG_WQ_POWER_EFFICIENT_DEFAULT=y
CONFIG_ARM_CPUIDLE=y
CONFIG_CPU_FREQ=y
CONFIG_CPUFREQ_DT=y
CONFIG_ARM_BIG_LITTLE_CPUFREQ=y
CONFIG_ARM_SCPI_CPUFREQ=y
+CONFIG_ACPI_CPPC_CPUFREQ=m
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
@@ -153,12 +160,14 @@ CONFIG_MTD_SPI_NOR=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_NBD=m
CONFIG_VIRTIO_BLK=y
+CONFIG_BLK_DEV_NVME=m
CONFIG_SRAM=y
CONFIG_EEPROM_AT25=m
# CONFIG_SCSI_PROC_FS is not set
CONFIG_BLK_DEV_SD=y
CONFIG_SCSI_SAS_ATA=y
CONFIG_SCSI_HISI_SAS=y
+CONFIG_SCSI_HISI_SAS_PCI=y
CONFIG_ATA=y
CONFIG_SATA_AHCI=y
CONFIG_SATA_AHCI_PLATFORM=y
@@ -187,14 +196,18 @@ CONFIG_IGBVF=y
CONFIG_MVNETA=y
CONFIG_MVPP2=y
CONFIG_SKY2=y
+CONFIG_QCOM_EMAC=m
CONFIG_RAVB=y
CONFIG_SMC91X=y
CONFIG_SMSC911X=y
CONFIG_STMMAC_ETH=m
CONFIG_MDIO_BUS_MUX_MMIOREG=y
+CONFIG_AT803X_PHY=m
+CONFIG_MARVELL_PHY=m
CONFIG_MESON_GXL_PHY=m
CONFIG_MICREL_PHY=y
CONFIG_REALTEK_PHY=m
+CONFIG_ROCKCHIP_PHY=y
CONFIG_USB_PEGASUS=m
CONFIG_USB_RTL8150=m
CONFIG_USB_RTL8152=m
@@ -242,6 +255,8 @@ CONFIG_SERIAL_MSM_CONSOLE=y
CONFIG_SERIAL_XILINX_PS_UART=y
CONFIG_SERIAL_XILINX_PS_UART_CONSOLE=y
CONFIG_SERIAL_MVEBU_UART=y
+CONFIG_SERIAL_DEV_BUS=y
+CONFIG_SERIAL_DEV_CTRL_TTYPORT=y
CONFIG_VIRTIO_CONSOLE=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MUX=y
@@ -260,9 +275,10 @@ CONFIG_I2C_UNIPHIER_F=y
CONFIG_I2C_RCAR=y
CONFIG_I2C_CROS_EC_TUNNEL=y
CONFIG_SPI=y
+CONFIG_SPI_MESON_SPICC=m
+CONFIG_SPI_MESON_SPIFC=m
CONFIG_SPI_BCM2835=m
CONFIG_SPI_BCM2835AUX=m
-CONFIG_SPI_MESON_SPIFC=m
CONFIG_SPI_ORION=y
CONFIG_SPI_PL022=y
CONFIG_SPI_QUP=y
@@ -270,6 +286,7 @@ CONFIG_SPI_ROCKCHIP=y
CONFIG_SPI_S3C64XX=y
CONFIG_SPI_SPIDEV=m
CONFIG_SPMI=y
+CONFIG_PINCTRL_IPQ8074=y
CONFIG_PINCTRL_SINGLE=y
CONFIG_PINCTRL_MAX77620=y
CONFIG_PINCTRL_MSM8916=y
@@ -288,6 +305,7 @@ CONFIG_GPIO_MAX77620=y
CONFIG_POWER_RESET_MSM=y
CONFIG_POWER_RESET_XGENE=y
CONFIG_POWER_RESET_SYSCON=y
+CONFIG_SYSCON_REBOOT_MODE=y
CONFIG_BATTERY_BQ27XXX=y
CONFIG_SENSORS_ARM_SCPI=y
CONFIG_SENSORS_LM90=m
@@ -295,6 +313,7 @@ CONFIG_SENSORS_INA2XX=m
CONFIG_THERMAL_GOV_POWER_ALLOCATOR=y
CONFIG_CPU_THERMAL=y
CONFIG_THERMAL_EMULATION=y
+CONFIG_BRCMSTB_THERMAL=m
CONFIG_EXYNOS_THERMAL=y
CONFIG_ROCKCHIP_THERMAL=m
CONFIG_WATCHDOG=y
@@ -302,19 +321,24 @@ CONFIG_S3C2410_WATCHDOG=y
CONFIG_MESON_GXBB_WATCHDOG=m
CONFIG_MESON_WATCHDOG=m
CONFIG_RENESAS_WDT=y
+CONFIG_UNIPHIER_WATCHDOG=y
CONFIG_BCM2835_WDT=y
+CONFIG_MFD_AXP20X_RSB=y
CONFIG_MFD_CROS_EC=y
CONFIG_MFD_CROS_EC_I2C=y
CONFIG_MFD_CROS_EC_SPI=y
CONFIG_MFD_EXYNOS_LPASS=m
+CONFIG_MFD_HI6421_PMIC=y
CONFIG_MFD_HI655X_PMIC=y
CONFIG_MFD_MAX77620=y
CONFIG_MFD_SPMI_PMIC=y
CONFIG_MFD_RK808=y
CONFIG_MFD_SEC_CORE=y
+CONFIG_REGULATOR_AXP20X=y
CONFIG_REGULATOR_FAN53555=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_REGULATOR_GPIO=y
+CONFIG_REGULATOR_HI6421V530=y
CONFIG_REGULATOR_HI655X=y
CONFIG_REGULATOR_MAX77620=y
CONFIG_REGULATOR_PWM=y
@@ -327,6 +351,11 @@ CONFIG_MEDIA_CAMERA_SUPPORT=y
CONFIG_MEDIA_ANALOG_TV_SUPPORT=y
CONFIG_MEDIA_DIGITAL_TV_SUPPORT=y
CONFIG_MEDIA_CONTROLLER=y
+CONFIG_MEDIA_RC_SUPPORT=y
+CONFIG_RC_CORE=m
+CONFIG_RC_DEVICES=y
+CONFIG_RC_DECODERS=y
+CONFIG_IR_MESON=m
CONFIG_VIDEO_V4L2_SUBDEV_API=y
# CONFIG_DVB_NET is not set
CONFIG_V4L_MEM2MEM_DRIVERS=y
@@ -344,6 +373,12 @@ CONFIG_DRM_EXYNOS_DSI=y
# CONFIG_DRM_EXYNOS_DP is not set
CONFIG_DRM_EXYNOS_HDMI=y
CONFIG_DRM_EXYNOS_MIC=y
+CONFIG_DRM_ROCKCHIP=m
+CONFIG_ROCKCHIP_ANALOGIX_DP=y
+CONFIG_ROCKCHIP_CDN_DP=y
+CONFIG_ROCKCHIP_DW_HDMI=y
+CONFIG_ROCKCHIP_DW_MIPI_DSI=y
+CONFIG_ROCKCHIP_INNO_HDMI=y
CONFIG_DRM_RCAR_DU=m
CONFIG_DRM_RCAR_LVDS=y
CONFIG_DRM_RCAR_VSP=y
@@ -356,6 +391,7 @@ CONFIG_DRM_MESON=m
CONFIG_FB=y
CONFIG_FB_ARMCLCD=y
CONFIG_BACKLIGHT_GENERIC=m
+CONFIG_BACKLIGHT_PWM=m
CONFIG_BACKLIGHT_LP855X=m
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
@@ -366,8 +402,9 @@ CONFIG_SND=y
CONFIG_SND_SOC=y
CONFIG_SND_BCM2835_SOC_I2S=m
CONFIG_SND_SOC_SAMSUNG=y
-CONFIG_SND_SOC_RCAR=y
-CONFIG_SND_SOC_AK4613=y
+CONFIG_SND_SOC_RCAR=m
+CONFIG_SND_SOC_AK4613=m
+CONFIG_SND_SIMPLE_CARD=y
CONFIG_USB=y
CONFIG_USB_OTG=y
CONFIG_USB_XHCI_HCD=y
@@ -388,6 +425,7 @@ CONFIG_USB_CHIPIDEA_UDC=y
CONFIG_USB_CHIPIDEA_HOST=y
CONFIG_USB_ISP1760=y
CONFIG_USB_HSIC_USB3503=y
+CONFIG_NOP_USB_XCEIV=y
CONFIG_USB_MSM_OTG=y
CONFIG_USB_QCOM_8X16_PHY=y
CONFIG_USB_ULPI=y
@@ -422,6 +460,7 @@ CONFIG_LEDS_SYSCON=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_LEDS_TRIGGER_CPU=y
CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
+CONFIG_EDAC=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_MAX77686=y
CONFIG_RTC_DRV_RK808=m
@@ -435,6 +474,7 @@ CONFIG_RTC_DRV_TEGRA=y
CONFIG_RTC_DRV_XGENE=y
CONFIG_DMADEVICES=y
CONFIG_DMA_BCM2835=m
+CONFIG_K3_DMA=y
CONFIG_MV_XOR_V2=y
CONFIG_PL330_DMA=y
CONFIG_TEGRA20_APB_DMA=y
@@ -457,14 +497,17 @@ CONFIG_CLK_QORIQ=y
CONFIG_COMMON_CLK_PWM=y
CONFIG_COMMON_CLK_QCOM=y
CONFIG_QCOM_CLK_SMD_RPM=y
+CONFIG_IPQ_GCC_8074=y
CONFIG_MSM_GCC_8916=y
CONFIG_MSM_GCC_8994=y
CONFIG_MSM_MMCC_8996=y
+CONFIG_HWSPINLOCK=y
CONFIG_HWSPINLOCK_QCOM=y
CONFIG_ARM_MHU=y
CONFIG_PLATFORM_MHU=y
CONFIG_BCM2835_MBOX=y
CONFIG_HI6220_MBOX=y
+CONFIG_ROCKCHIP_IOMMU=y
CONFIG_ARM_SMMU=y
CONFIG_ARM_SMMU_V3=y
CONFIG_RPMSG_QCOM_SMD=y
@@ -496,9 +539,17 @@ CONFIG_PHY_ROCKCHIP_EMMC=y
CONFIG_PHY_ROCKCHIP_PCIE=m
CONFIG_PHY_XGENE=y
CONFIG_PHY_TEGRA_XUSB=y
+CONFIG_QCOM_L2_PMU=y
+CONFIG_QCOM_L3_PMU=y
+CONFIG_TEE=y
+CONFIG_OPTEE=y
CONFIG_ARM_SCPI_PROTOCOL=y
CONFIG_RASPBERRYPI_FIRMWARE=y
+CONFIG_EFI_CAPSULE_LOADER=y
CONFIG_ACPI=y
+CONFIG_ACPI_APEI=y
+CONFIG_ACPI_APEI_GHES=y
+CONFIG_ACPI_APEI_PCIEAER=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
@@ -540,8 +591,17 @@ CONFIG_SECURITY=y
CONFIG_CRYPTO_ECHAINIV=y
CONFIG_CRYPTO_ANSI_CPRNG=y
CONFIG_ARM64_CRYPTO=y
+CONFIG_CRYPTO_SHA256_ARM64=m
+CONFIG_CRYPTO_SHA512_ARM64=m
CONFIG_CRYPTO_SHA1_ARM64_CE=y
CONFIG_CRYPTO_SHA2_ARM64_CE=y
CONFIG_CRYPTO_GHASH_ARM64_CE=y
+CONFIG_CRYPTO_CRCT10DIF_ARM64_CE=m
+CONFIG_CRYPTO_CRC32_ARM64_CE=m
+CONFIG_CRYPTO_AES_ARM64=m
+CONFIG_CRYPTO_AES_ARM64_CE=m
CONFIG_CRYPTO_AES_ARM64_CE_CCM=y
CONFIG_CRYPTO_AES_ARM64_CE_BLK=y
+CONFIG_CRYPTO_AES_ARM64_NEON_BLK=m
+CONFIG_CRYPTO_CHACHA20_NEON=m
+CONFIG_CRYPTO_AES_ARM64_BS=m
diff --git a/arch/arm64/crypto/Kconfig b/arch/arm64/crypto/Kconfig
index d92293747d63..7ca54a76f6b9 100644
--- a/arch/arm64/crypto/Kconfig
+++ b/arch/arm64/crypto/Kconfig
@@ -18,18 +18,23 @@ config CRYPTO_SHA512_ARM64
config CRYPTO_SHA1_ARM64_CE
tristate "SHA-1 digest algorithm (ARMv8 Crypto Extensions)"
- depends on ARM64 && KERNEL_MODE_NEON
+ depends on KERNEL_MODE_NEON
select CRYPTO_HASH
+ select CRYPTO_SHA1
config CRYPTO_SHA2_ARM64_CE
tristate "SHA-224/SHA-256 digest algorithm (ARMv8 Crypto Extensions)"
- depends on ARM64 && KERNEL_MODE_NEON
+ depends on KERNEL_MODE_NEON
select CRYPTO_HASH
+ select CRYPTO_SHA256_ARM64
config CRYPTO_GHASH_ARM64_CE
- tristate "GHASH (for GCM chaining mode) using ARMv8 Crypto Extensions"
- depends on ARM64 && KERNEL_MODE_NEON
+ tristate "GHASH/AES-GCM using ARMv8 Crypto Extensions"
+ depends on KERNEL_MODE_NEON
select CRYPTO_HASH
+ select CRYPTO_GF128MUL
+ select CRYPTO_AES
+ select CRYPTO_AES_ARM64
config CRYPTO_CRCT10DIF_ARM64_CE
tristate "CRCT10DIF digest algorithm using PMULL instructions"
@@ -49,25 +54,29 @@ config CRYPTO_AES_ARM64_CE
tristate "AES core cipher using ARMv8 Crypto Extensions"
depends on ARM64 && KERNEL_MODE_NEON
select CRYPTO_ALGAPI
+ select CRYPTO_AES_ARM64
config CRYPTO_AES_ARM64_CE_CCM
tristate "AES in CCM mode using ARMv8 Crypto Extensions"
depends on ARM64 && KERNEL_MODE_NEON
select CRYPTO_ALGAPI
select CRYPTO_AES_ARM64_CE
+ select CRYPTO_AES_ARM64
select CRYPTO_AEAD
config CRYPTO_AES_ARM64_CE_BLK
tristate "AES in ECB/CBC/CTR/XTS modes using ARMv8 Crypto Extensions"
- depends on ARM64 && KERNEL_MODE_NEON
+ depends on KERNEL_MODE_NEON
select CRYPTO_BLKCIPHER
select CRYPTO_AES_ARM64_CE
+ select CRYPTO_AES_ARM64
select CRYPTO_SIMD
config CRYPTO_AES_ARM64_NEON_BLK
tristate "AES in ECB/CBC/CTR/XTS modes using NEON instructions"
- depends on ARM64 && KERNEL_MODE_NEON
+ depends on KERNEL_MODE_NEON
select CRYPTO_BLKCIPHER
+ select CRYPTO_AES_ARM64
select CRYPTO_AES
select CRYPTO_SIMD
@@ -82,6 +91,7 @@ config CRYPTO_AES_ARM64_BS
depends on KERNEL_MODE_NEON
select CRYPTO_BLKCIPHER
select CRYPTO_AES_ARM64_NEON_BLK
+ select CRYPTO_AES_ARM64
select CRYPTO_SIMD
endif
diff --git a/arch/arm64/crypto/aes-ce-ccm-core.S b/arch/arm64/crypto/aes-ce-ccm-core.S
index 3363560c79b7..e3a375c4cb83 100644
--- a/arch/arm64/crypto/aes-ce-ccm-core.S
+++ b/arch/arm64/crypto/aes-ce-ccm-core.S
@@ -1,7 +1,7 @@
/*
* aesce-ccm-core.S - AES-CCM transform for ARMv8 with Crypto Extensions
*
- * Copyright (C) 2013 - 2014 Linaro Ltd <ard.biesheuvel@linaro.org>
+ * Copyright (C) 2013 - 2017 Linaro Ltd <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -32,7 +32,7 @@ ENTRY(ce_aes_ccm_auth_data)
beq 8f /* out of input? */
cbnz w8, 0b
eor v0.16b, v0.16b, v1.16b
-1: ld1 {v3.16b}, [x4] /* load first round key */
+1: ld1 {v3.4s}, [x4] /* load first round key */
prfm pldl1strm, [x1]
cmp w5, #12 /* which key size? */
add x6, x4, #16
@@ -42,17 +42,17 @@ ENTRY(ce_aes_ccm_auth_data)
mov v5.16b, v3.16b
b 4f
2: mov v4.16b, v3.16b
- ld1 {v5.16b}, [x6], #16 /* load 2nd round key */
+ ld1 {v5.4s}, [x6], #16 /* load 2nd round key */
3: aese v0.16b, v4.16b
aesmc v0.16b, v0.16b
-4: ld1 {v3.16b}, [x6], #16 /* load next round key */
+4: ld1 {v3.4s}, [x6], #16 /* load next round key */
aese v0.16b, v5.16b
aesmc v0.16b, v0.16b
-5: ld1 {v4.16b}, [x6], #16 /* load next round key */
+5: ld1 {v4.4s}, [x6], #16 /* load next round key */
subs w7, w7, #3
aese v0.16b, v3.16b
aesmc v0.16b, v0.16b
- ld1 {v5.16b}, [x6], #16 /* load next round key */
+ ld1 {v5.4s}, [x6], #16 /* load next round key */
bpl 3b
aese v0.16b, v4.16b
subs w2, w2, #16 /* last data? */
@@ -90,7 +90,7 @@ ENDPROC(ce_aes_ccm_auth_data)
* u32 rounds);
*/
ENTRY(ce_aes_ccm_final)
- ld1 {v3.16b}, [x2], #16 /* load first round key */
+ ld1 {v3.4s}, [x2], #16 /* load first round key */
ld1 {v0.16b}, [x0] /* load mac */
cmp w3, #12 /* which key size? */
sub w3, w3, #2 /* modified # of rounds */
@@ -100,17 +100,17 @@ ENTRY(ce_aes_ccm_final)
mov v5.16b, v3.16b
b 2f
0: mov v4.16b, v3.16b
-1: ld1 {v5.16b}, [x2], #16 /* load next round key */
+1: ld1 {v5.4s}, [x2], #16 /* load next round key */
aese v0.16b, v4.16b
aesmc v0.16b, v0.16b
aese v1.16b, v4.16b
aesmc v1.16b, v1.16b
-2: ld1 {v3.16b}, [x2], #16 /* load next round key */
+2: ld1 {v3.4s}, [x2], #16 /* load next round key */
aese v0.16b, v5.16b
aesmc v0.16b, v0.16b
aese v1.16b, v5.16b
aesmc v1.16b, v1.16b
-3: ld1 {v4.16b}, [x2], #16 /* load next round key */
+3: ld1 {v4.4s}, [x2], #16 /* load next round key */
subs w3, w3, #3
aese v0.16b, v3.16b
aesmc v0.16b, v0.16b
@@ -137,31 +137,31 @@ CPU_LE( rev x8, x8 ) /* keep swabbed ctr in reg */
cmp w4, #12 /* which key size? */
sub w7, w4, #2 /* get modified # of rounds */
ins v1.d[1], x9 /* no carry in lower ctr */
- ld1 {v3.16b}, [x3] /* load first round key */
+ ld1 {v3.4s}, [x3] /* load first round key */
add x10, x3, #16
bmi 1f
bne 4f
mov v5.16b, v3.16b
b 3f
1: mov v4.16b, v3.16b
- ld1 {v5.16b}, [x10], #16 /* load 2nd round key */
+ ld1 {v5.4s}, [x10], #16 /* load 2nd round key */
2: /* inner loop: 3 rounds, 2x interleaved */
aese v0.16b, v4.16b
aesmc v0.16b, v0.16b
aese v1.16b, v4.16b
aesmc v1.16b, v1.16b
-3: ld1 {v3.16b}, [x10], #16 /* load next round key */
+3: ld1 {v3.4s}, [x10], #16 /* load next round key */
aese v0.16b, v5.16b
aesmc v0.16b, v0.16b
aese v1.16b, v5.16b
aesmc v1.16b, v1.16b
-4: ld1 {v4.16b}, [x10], #16 /* load next round key */
+4: ld1 {v4.4s}, [x10], #16 /* load next round key */
subs w7, w7, #3
aese v0.16b, v3.16b
aesmc v0.16b, v0.16b
aese v1.16b, v3.16b
aesmc v1.16b, v1.16b
- ld1 {v5.16b}, [x10], #16 /* load next round key */
+ ld1 {v5.4s}, [x10], #16 /* load next round key */
bpl 2b
aese v0.16b, v4.16b
aese v1.16b, v4.16b
diff --git a/arch/arm64/crypto/aes-ce-ccm-glue.c b/arch/arm64/crypto/aes-ce-ccm-glue.c
index 6a7dbc7c83a6..a1254036f2b1 100644
--- a/arch/arm64/crypto/aes-ce-ccm-glue.c
+++ b/arch/arm64/crypto/aes-ce-ccm-glue.c
@@ -1,7 +1,7 @@
/*
* aes-ccm-glue.c - AES-CCM transform for ARMv8 with Crypto Extensions
*
- * Copyright (C) 2013 - 2014 Linaro Ltd <ard.biesheuvel@linaro.org>
+ * Copyright (C) 2013 - 2017 Linaro Ltd <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -9,6 +9,7 @@
*/
#include <asm/neon.h>
+#include <asm/simd.h>
#include <asm/unaligned.h>
#include <crypto/aes.h>
#include <crypto/scatterwalk.h>
@@ -44,6 +45,8 @@ asmlinkage void ce_aes_ccm_decrypt(u8 out[], u8 const in[], u32 cbytes,
asmlinkage void ce_aes_ccm_final(u8 mac[], u8 const ctr[], u32 const rk[],
u32 rounds);
+asmlinkage void __aes_arm64_encrypt(u32 *rk, u8 *out, const u8 *in, int rounds);
+
static int ccm_setkey(struct crypto_aead *tfm, const u8 *in_key,
unsigned int key_len)
{
@@ -103,7 +106,45 @@ static int ccm_init_mac(struct aead_request *req, u8 maciv[], u32 msglen)
return 0;
}
-static void ccm_calculate_auth_mac(struct aead_request *req, u8 mac[])
+static void ccm_update_mac(struct crypto_aes_ctx *key, u8 mac[], u8 const in[],
+ u32 abytes, u32 *macp, bool use_neon)
+{
+ if (likely(use_neon)) {
+ ce_aes_ccm_auth_data(mac, in, abytes, macp, key->key_enc,
+ num_rounds(key));
+ } else {
+ if (*macp > 0 && *macp < AES_BLOCK_SIZE) {
+ int added = min(abytes, AES_BLOCK_SIZE - *macp);
+
+ crypto_xor(&mac[*macp], in, added);
+
+ *macp += added;
+ in += added;
+ abytes -= added;
+ }
+
+ while (abytes > AES_BLOCK_SIZE) {
+ __aes_arm64_encrypt(key->key_enc, mac, mac,
+ num_rounds(key));
+ crypto_xor(mac, in, AES_BLOCK_SIZE);
+
+ in += AES_BLOCK_SIZE;
+ abytes -= AES_BLOCK_SIZE;
+ }
+
+ if (abytes > 0) {
+ __aes_arm64_encrypt(key->key_enc, mac, mac,
+ num_rounds(key));
+ crypto_xor(mac, in, abytes);
+ *macp = abytes;
+ } else {
+ *macp = 0;
+ }
+ }
+}
+
+static void ccm_calculate_auth_mac(struct aead_request *req, u8 mac[],
+ bool use_neon)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct crypto_aes_ctx *ctx = crypto_aead_ctx(aead);
@@ -122,8 +163,7 @@ static void ccm_calculate_auth_mac(struct aead_request *req, u8 mac[])
ltag.len = 6;
}
- ce_aes_ccm_auth_data(mac, (u8 *)&ltag, ltag.len, &macp, ctx->key_enc,
- num_rounds(ctx));
+ ccm_update_mac(ctx, mac, (u8 *)&ltag, ltag.len, &macp, use_neon);
scatterwalk_start(&walk, req->src);
do {
@@ -135,8 +175,7 @@ static void ccm_calculate_auth_mac(struct aead_request *req, u8 mac[])
n = scatterwalk_clamp(&walk, len);
}
p = scatterwalk_map(&walk);
- ce_aes_ccm_auth_data(mac, p, n, &macp, ctx->key_enc,
- num_rounds(ctx));
+ ccm_update_mac(ctx, mac, p, n, &macp, use_neon);
len -= n;
scatterwalk_unmap(p);
@@ -145,6 +184,56 @@ static void ccm_calculate_auth_mac(struct aead_request *req, u8 mac[])
} while (len);
}
+static int ccm_crypt_fallback(struct skcipher_walk *walk, u8 mac[], u8 iv0[],
+ struct crypto_aes_ctx *ctx, bool enc)
+{
+ u8 buf[AES_BLOCK_SIZE];
+ int err = 0;
+
+ while (walk->nbytes) {
+ int blocks = walk->nbytes / AES_BLOCK_SIZE;
+ u32 tail = walk->nbytes % AES_BLOCK_SIZE;
+ u8 *dst = walk->dst.virt.addr;
+ u8 *src = walk->src.virt.addr;
+ u32 nbytes = walk->nbytes;
+
+ if (nbytes == walk->total && tail > 0) {
+ blocks++;
+ tail = 0;
+ }
+
+ do {
+ u32 bsize = AES_BLOCK_SIZE;
+
+ if (nbytes < AES_BLOCK_SIZE)
+ bsize = nbytes;
+
+ crypto_inc(walk->iv, AES_BLOCK_SIZE);
+ __aes_arm64_encrypt(ctx->key_enc, buf, walk->iv,
+ num_rounds(ctx));
+ __aes_arm64_encrypt(ctx->key_enc, mac, mac,
+ num_rounds(ctx));
+ if (enc)
+ crypto_xor(mac, src, bsize);
+ crypto_xor_cpy(dst, src, buf, bsize);
+ if (!enc)
+ crypto_xor(mac, dst, bsize);
+ dst += bsize;
+ src += bsize;
+ nbytes -= bsize;
+ } while (--blocks);
+
+ err = skcipher_walk_done(walk, tail);
+ }
+
+ if (!err) {
+ __aes_arm64_encrypt(ctx->key_enc, buf, iv0, num_rounds(ctx));
+ __aes_arm64_encrypt(ctx->key_enc, mac, mac, num_rounds(ctx));
+ crypto_xor(mac, buf, AES_BLOCK_SIZE);
+ }
+ return err;
+}
+
static int ccm_encrypt(struct aead_request *req)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
@@ -153,39 +242,46 @@ static int ccm_encrypt(struct aead_request *req)
u8 __aligned(8) mac[AES_BLOCK_SIZE];
u8 buf[AES_BLOCK_SIZE];
u32 len = req->cryptlen;
+ bool use_neon = may_use_simd();
int err;
err = ccm_init_mac(req, mac, len);
if (err)
return err;
- kernel_neon_begin_partial(6);
+ if (likely(use_neon))
+ kernel_neon_begin();
if (req->assoclen)
- ccm_calculate_auth_mac(req, mac);
+ ccm_calculate_auth_mac(req, mac, use_neon);
/* preserve the original iv for the final round */
memcpy(buf, req->iv, AES_BLOCK_SIZE);
err = skcipher_walk_aead_encrypt(&walk, req, true);
- while (walk.nbytes) {
- u32 tail = walk.nbytes % AES_BLOCK_SIZE;
-
- if (walk.nbytes == walk.total)
- tail = 0;
+ if (likely(use_neon)) {
+ while (walk.nbytes) {
+ u32 tail = walk.nbytes % AES_BLOCK_SIZE;
- ce_aes_ccm_encrypt(walk.dst.virt.addr, walk.src.virt.addr,
- walk.nbytes - tail, ctx->key_enc,
- num_rounds(ctx), mac, walk.iv);
+ if (walk.nbytes == walk.total)
+ tail = 0;
- err = skcipher_walk_done(&walk, tail);
- }
- if (!err)
- ce_aes_ccm_final(mac, buf, ctx->key_enc, num_rounds(ctx));
+ ce_aes_ccm_encrypt(walk.dst.virt.addr,
+ walk.src.virt.addr,
+ walk.nbytes - tail, ctx->key_enc,
+ num_rounds(ctx), mac, walk.iv);
- kernel_neon_end();
+ err = skcipher_walk_done(&walk, tail);
+ }
+ if (!err)
+ ce_aes_ccm_final(mac, buf, ctx->key_enc,
+ num_rounds(ctx));
+ kernel_neon_end();
+ } else {
+ err = ccm_crypt_fallback(&walk, mac, buf, ctx, true);
+ }
if (err)
return err;
@@ -205,38 +301,46 @@ static int ccm_decrypt(struct aead_request *req)
u8 __aligned(8) mac[AES_BLOCK_SIZE];
u8 buf[AES_BLOCK_SIZE];
u32 len = req->cryptlen - authsize;
+ bool use_neon = may_use_simd();
int err;
err = ccm_init_mac(req, mac, len);
if (err)
return err;
- kernel_neon_begin_partial(6);
+ if (likely(use_neon))
+ kernel_neon_begin();
if (req->assoclen)
- ccm_calculate_auth_mac(req, mac);
+ ccm_calculate_auth_mac(req, mac, use_neon);
/* preserve the original iv for the final round */
memcpy(buf, req->iv, AES_BLOCK_SIZE);
err = skcipher_walk_aead_decrypt(&walk, req, true);
- while (walk.nbytes) {
- u32 tail = walk.nbytes % AES_BLOCK_SIZE;
+ if (likely(use_neon)) {
+ while (walk.nbytes) {
+ u32 tail = walk.nbytes % AES_BLOCK_SIZE;
- if (walk.nbytes == walk.total)
- tail = 0;
+ if (walk.nbytes == walk.total)
+ tail = 0;
- ce_aes_ccm_decrypt(walk.dst.virt.addr, walk.src.virt.addr,
- walk.nbytes - tail, ctx->key_enc,
- num_rounds(ctx), mac, walk.iv);
+ ce_aes_ccm_decrypt(walk.dst.virt.addr,
+ walk.src.virt.addr,
+ walk.nbytes - tail, ctx->key_enc,
+ num_rounds(ctx), mac, walk.iv);
- err = skcipher_walk_done(&walk, tail);
- }
- if (!err)
- ce_aes_ccm_final(mac, buf, ctx->key_enc, num_rounds(ctx));
+ err = skcipher_walk_done(&walk, tail);
+ }
+ if (!err)
+ ce_aes_ccm_final(mac, buf, ctx->key_enc,
+ num_rounds(ctx));
- kernel_neon_end();
+ kernel_neon_end();
+ } else {
+ err = ccm_crypt_fallback(&walk, mac, buf, ctx, false);
+ }
if (err)
return err;
diff --git a/arch/arm64/crypto/aes-ce-cipher.c b/arch/arm64/crypto/aes-ce-cipher.c
index 50d9fe11d0c8..6a75cd75ed11 100644
--- a/arch/arm64/crypto/aes-ce-cipher.c
+++ b/arch/arm64/crypto/aes-ce-cipher.c
@@ -1,7 +1,7 @@
/*
* aes-ce-cipher.c - core AES cipher using ARMv8 Crypto Extensions
*
- * Copyright (C) 2013 - 2014 Linaro Ltd <ard.biesheuvel@linaro.org>
+ * Copyright (C) 2013 - 2017 Linaro Ltd <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -9,6 +9,8 @@
*/
#include <asm/neon.h>
+#include <asm/simd.h>
+#include <asm/unaligned.h>
#include <crypto/aes.h>
#include <linux/cpufeature.h>
#include <linux/crypto.h>
@@ -20,6 +22,9 @@ MODULE_DESCRIPTION("Synchronous AES cipher using ARMv8 Crypto Extensions");
MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
MODULE_LICENSE("GPL v2");
+asmlinkage void __aes_arm64_encrypt(u32 *rk, u8 *out, const u8 *in, int rounds);
+asmlinkage void __aes_arm64_decrypt(u32 *rk, u8 *out, const u8 *in, int rounds);
+
struct aes_block {
u8 b[AES_BLOCK_SIZE];
};
@@ -44,27 +49,32 @@ static void aes_cipher_encrypt(struct crypto_tfm *tfm, u8 dst[], u8 const src[])
void *dummy0;
int dummy1;
- kernel_neon_begin_partial(4);
+ if (!may_use_simd()) {
+ __aes_arm64_encrypt(ctx->key_enc, dst, src, num_rounds(ctx));
+ return;
+ }
+
+ kernel_neon_begin();
__asm__(" ld1 {v0.16b}, %[in] ;"
- " ld1 {v1.16b}, [%[key]], #16 ;"
+ " ld1 {v1.4s}, [%[key]], #16 ;"
" cmp %w[rounds], #10 ;"
" bmi 0f ;"
" bne 3f ;"
" mov v3.16b, v1.16b ;"
" b 2f ;"
"0: mov v2.16b, v1.16b ;"
- " ld1 {v3.16b}, [%[key]], #16 ;"
+ " ld1 {v3.4s}, [%[key]], #16 ;"
"1: aese v0.16b, v2.16b ;"
" aesmc v0.16b, v0.16b ;"
- "2: ld1 {v1.16b}, [%[key]], #16 ;"
+ "2: ld1 {v1.4s}, [%[key]], #16 ;"
" aese v0.16b, v3.16b ;"
" aesmc v0.16b, v0.16b ;"
- "3: ld1 {v2.16b}, [%[key]], #16 ;"
+ "3: ld1 {v2.4s}, [%[key]], #16 ;"
" subs %w[rounds], %w[rounds], #3 ;"
" aese v0.16b, v1.16b ;"
" aesmc v0.16b, v0.16b ;"
- " ld1 {v3.16b}, [%[key]], #16 ;"
+ " ld1 {v3.4s}, [%[key]], #16 ;"
" bpl 1b ;"
" aese v0.16b, v2.16b ;"
" eor v0.16b, v0.16b, v3.16b ;"
@@ -89,27 +99,32 @@ static void aes_cipher_decrypt(struct crypto_tfm *tfm, u8 dst[], u8 const src[])
void *dummy0;
int dummy1;
- kernel_neon_begin_partial(4);
+ if (!may_use_simd()) {
+ __aes_arm64_decrypt(ctx->key_dec, dst, src, num_rounds(ctx));
+ return;
+ }
+
+ kernel_neon_begin();
__asm__(" ld1 {v0.16b}, %[in] ;"
- " ld1 {v1.16b}, [%[key]], #16 ;"
+ " ld1 {v1.4s}, [%[key]], #16 ;"
" cmp %w[rounds], #10 ;"
" bmi 0f ;"
" bne 3f ;"
" mov v3.16b, v1.16b ;"
" b 2f ;"
"0: mov v2.16b, v1.16b ;"
- " ld1 {v3.16b}, [%[key]], #16 ;"
+ " ld1 {v3.4s}, [%[key]], #16 ;"
"1: aesd v0.16b, v2.16b ;"
" aesimc v0.16b, v0.16b ;"
- "2: ld1 {v1.16b}, [%[key]], #16 ;"
+ "2: ld1 {v1.4s}, [%[key]], #16 ;"
" aesd v0.16b, v3.16b ;"
" aesimc v0.16b, v0.16b ;"
- "3: ld1 {v2.16b}, [%[key]], #16 ;"
+ "3: ld1 {v2.4s}, [%[key]], #16 ;"
" subs %w[rounds], %w[rounds], #3 ;"
" aesd v0.16b, v1.16b ;"
" aesimc v0.16b, v0.16b ;"
- " ld1 {v3.16b}, [%[key]], #16 ;"
+ " ld1 {v3.4s}, [%[key]], #16 ;"
" bpl 1b ;"
" aesd v0.16b, v2.16b ;"
" eor v0.16b, v0.16b, v3.16b ;"
@@ -165,20 +180,16 @@ int ce_aes_expandkey(struct crypto_aes_ctx *ctx, const u8 *in_key,
key_len != AES_KEYSIZE_256)
return -EINVAL;
- memcpy(ctx->key_enc, in_key, key_len);
ctx->key_length = key_len;
+ for (i = 0; i < kwords; i++)
+ ctx->key_enc[i] = get_unaligned_le32(in_key + i * sizeof(u32));
- kernel_neon_begin_partial(2);
+ kernel_neon_begin();
for (i = 0; i < sizeof(rcon); i++) {
u32 *rki = ctx->key_enc + (i * kwords);
u32 *rko = rki + kwords;
-#ifndef CONFIG_CPU_BIG_ENDIAN
rko[0] = ror32(aes_sub(rki[kwords - 1]), 8) ^ rcon[i] ^ rki[0];
-#else
- rko[0] = rol32(aes_sub(rki[kwords - 1]), 8) ^ (rcon[i] << 24) ^
- rki[0];
-#endif
rko[1] = rko[0] ^ rki[1];
rko[2] = rko[1] ^ rki[2];
rko[3] = rko[2] ^ rki[3];
@@ -210,9 +221,9 @@ int ce_aes_expandkey(struct crypto_aes_ctx *ctx, const u8 *in_key,
key_dec[0] = key_enc[j];
for (i = 1, j--; j > 0; i++, j--)
- __asm__("ld1 {v0.16b}, %[in] ;"
+ __asm__("ld1 {v0.4s}, %[in] ;"
"aesimc v1.16b, v0.16b ;"
- "st1 {v1.16b}, %[out] ;"
+ "st1 {v1.4s}, %[out] ;"
: [out] "=Q"(key_dec[i])
: [in] "Q"(key_enc[j])
diff --git a/arch/arm64/crypto/aes-ce.S b/arch/arm64/crypto/aes-ce.S
index b46093d567e5..50330f5c3adc 100644
--- a/arch/arm64/crypto/aes-ce.S
+++ b/arch/arm64/crypto/aes-ce.S
@@ -2,7 +2,7 @@
* linux/arch/arm64/crypto/aes-ce.S - AES cipher for ARMv8 with
* Crypto Extensions
*
- * Copyright (C) 2013 Linaro Ltd <ard.biesheuvel@linaro.org>
+ * Copyright (C) 2013 - 2017 Linaro Ltd <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -22,11 +22,11 @@
cmp \rounds, #12
blo 2222f /* 128 bits */
beq 1111f /* 192 bits */
- ld1 {v17.16b-v18.16b}, [\rk], #32
-1111: ld1 {v19.16b-v20.16b}, [\rk], #32
-2222: ld1 {v21.16b-v24.16b}, [\rk], #64
- ld1 {v25.16b-v28.16b}, [\rk], #64
- ld1 {v29.16b-v31.16b}, [\rk]
+ ld1 {v17.4s-v18.4s}, [\rk], #32
+1111: ld1 {v19.4s-v20.4s}, [\rk], #32
+2222: ld1 {v21.4s-v24.4s}, [\rk], #64
+ ld1 {v25.4s-v28.4s}, [\rk], #64
+ ld1 {v29.4s-v31.4s}, [\rk]
.endm
/* prepare for encryption with key in rk[] */
diff --git a/arch/arm64/crypto/aes-cipher-core.S b/arch/arm64/crypto/aes-cipher-core.S
index f2f9cc519309..6d2445d603cc 100644
--- a/arch/arm64/crypto/aes-cipher-core.S
+++ b/arch/arm64/crypto/aes-cipher-core.S
@@ -10,6 +10,7 @@
#include <linux/linkage.h>
#include <asm/assembler.h>
+#include <asm/cache.h>
.text
@@ -17,94 +18,155 @@
out .req x1
in .req x2
rounds .req x3
- tt .req x4
- lt .req x2
+ tt .req x2
- .macro __pair, enc, reg0, reg1, in0, in1e, in1d, shift
+ .macro __pair1, sz, op, reg0, reg1, in0, in1e, in1d, shift
+ .ifc \op\shift, b0
+ ubfiz \reg0, \in0, #2, #8
+ ubfiz \reg1, \in1e, #2, #8
+ .else
ubfx \reg0, \in0, #\shift, #8
- .if \enc
ubfx \reg1, \in1e, #\shift, #8
- .else
- ubfx \reg1, \in1d, #\shift, #8
.endif
+
+ /*
+ * AArch64 cannot do byte size indexed loads from a table containing
+ * 32-bit quantities, i.e., 'ldrb w12, [tt, w12, uxtw #2]' is not a
+ * valid instruction. So perform the shift explicitly first for the
+ * high bytes (the low byte is shifted implicitly by using ubfiz rather
+ * than ubfx above)
+ */
+ .ifnc \op, b
ldr \reg0, [tt, \reg0, uxtw #2]
ldr \reg1, [tt, \reg1, uxtw #2]
+ .else
+ .if \shift > 0
+ lsl \reg0, \reg0, #2
+ lsl \reg1, \reg1, #2
+ .endif
+ ldrb \reg0, [tt, \reg0, uxtw]
+ ldrb \reg1, [tt, \reg1, uxtw]
+ .endif
.endm
- .macro __hround, out0, out1, in0, in1, in2, in3, t0, t1, enc
+ .macro __pair0, sz, op, reg0, reg1, in0, in1e, in1d, shift
+ ubfx \reg0, \in0, #\shift, #8
+ ubfx \reg1, \in1d, #\shift, #8
+ ldr\op \reg0, [tt, \reg0, uxtw #\sz]
+ ldr\op \reg1, [tt, \reg1, uxtw #\sz]
+ .endm
+
+ .macro __hround, out0, out1, in0, in1, in2, in3, t0, t1, enc, sz, op
ldp \out0, \out1, [rk], #8
- __pair \enc, w13, w14, \in0, \in1, \in3, 0
- __pair \enc, w15, w16, \in1, \in2, \in0, 8
- __pair \enc, w17, w18, \in2, \in3, \in1, 16
- __pair \enc, \t0, \t1, \in3, \in0, \in2, 24
-
- eor \out0, \out0, w13
- eor \out1, \out1, w14
- eor \out0, \out0, w15, ror #24
- eor \out1, \out1, w16, ror #24
- eor \out0, \out0, w17, ror #16
- eor \out1, \out1, w18, ror #16
+ __pair\enc \sz, \op, w12, w13, \in0, \in1, \in3, 0
+ __pair\enc \sz, \op, w14, w15, \in1, \in2, \in0, 8
+ __pair\enc \sz, \op, w16, w17, \in2, \in3, \in1, 16
+ __pair\enc \sz, \op, \t0, \t1, \in3, \in0, \in2, 24
+
+ eor \out0, \out0, w12
+ eor \out1, \out1, w13
+ eor \out0, \out0, w14, ror #24
+ eor \out1, \out1, w15, ror #24
+ eor \out0, \out0, w16, ror #16
+ eor \out1, \out1, w17, ror #16
eor \out0, \out0, \t0, ror #8
eor \out1, \out1, \t1, ror #8
.endm
- .macro fround, out0, out1, out2, out3, in0, in1, in2, in3
- __hround \out0, \out1, \in0, \in1, \in2, \in3, \out2, \out3, 1
- __hround \out2, \out3, \in2, \in3, \in0, \in1, \in1, \in2, 1
+ .macro fround, out0, out1, out2, out3, in0, in1, in2, in3, sz=2, op
+ __hround \out0, \out1, \in0, \in1, \in2, \in3, \out2, \out3, 1, \sz, \op
+ __hround \out2, \out3, \in2, \in3, \in0, \in1, \in1, \in2, 1, \sz, \op
.endm
- .macro iround, out0, out1, out2, out3, in0, in1, in2, in3
- __hround \out0, \out1, \in0, \in3, \in2, \in1, \out2, \out3, 0
- __hround \out2, \out3, \in2, \in1, \in0, \in3, \in1, \in0, 0
+ .macro iround, out0, out1, out2, out3, in0, in1, in2, in3, sz=2, op
+ __hround \out0, \out1, \in0, \in3, \in2, \in1, \out2, \out3, 0, \sz, \op
+ __hround \out2, \out3, \in2, \in1, \in0, \in3, \in1, \in0, 0, \sz, \op
.endm
- .macro do_crypt, round, ttab, ltab
- ldp w5, w6, [in]
- ldp w7, w8, [in, #8]
- ldp w9, w10, [rk], #16
- ldp w11, w12, [rk, #-8]
+ .macro do_crypt, round, ttab, ltab, bsz
+ ldp w4, w5, [in]
+ ldp w6, w7, [in, #8]
+ ldp w8, w9, [rk], #16
+ ldp w10, w11, [rk, #-8]
+CPU_BE( rev w4, w4 )
CPU_BE( rev w5, w5 )
CPU_BE( rev w6, w6 )
CPU_BE( rev w7, w7 )
-CPU_BE( rev w8, w8 )
+ eor w4, w4, w8
eor w5, w5, w9
eor w6, w6, w10
eor w7, w7, w11
- eor w8, w8, w12
adr_l tt, \ttab
- adr_l lt, \ltab
tbnz rounds, #1, 1f
-0: \round w9, w10, w11, w12, w5, w6, w7, w8
- \round w5, w6, w7, w8, w9, w10, w11, w12
+0: \round w8, w9, w10, w11, w4, w5, w6, w7
+ \round w4, w5, w6, w7, w8, w9, w10, w11
1: subs rounds, rounds, #4
- \round w9, w10, w11, w12, w5, w6, w7, w8
- csel tt, tt, lt, hi
- \round w5, w6, w7, w8, w9, w10, w11, w12
- b.hi 0b
-
+ \round w8, w9, w10, w11, w4, w5, w6, w7
+ b.ls 3f
+2: \round w4, w5, w6, w7, w8, w9, w10, w11
+ b 0b
+3: adr_l tt, \ltab
+ \round w4, w5, w6, w7, w8, w9, w10, w11, \bsz, b
+
+CPU_BE( rev w4, w4 )
CPU_BE( rev w5, w5 )
CPU_BE( rev w6, w6 )
CPU_BE( rev w7, w7 )
-CPU_BE( rev w8, w8 )
- stp w5, w6, [out]
- stp w7, w8, [out, #8]
+ stp w4, w5, [out]
+ stp w6, w7, [out, #8]
ret
.endm
- .align 5
+ .align L1_CACHE_SHIFT
+ .type __aes_arm64_inverse_sbox, %object
+__aes_arm64_inverse_sbox:
+ .byte 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38
+ .byte 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb
+ .byte 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87
+ .byte 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb
+ .byte 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d
+ .byte 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e
+ .byte 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2
+ .byte 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25
+ .byte 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16
+ .byte 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92
+ .byte 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda
+ .byte 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84
+ .byte 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a
+ .byte 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06
+ .byte 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02
+ .byte 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b
+ .byte 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea
+ .byte 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73
+ .byte 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85
+ .byte 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e
+ .byte 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89
+ .byte 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b
+ .byte 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20
+ .byte 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4
+ .byte 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31
+ .byte 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f
+ .byte 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d
+ .byte 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef
+ .byte 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0
+ .byte 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61
+ .byte 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26
+ .byte 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d
+ .size __aes_arm64_inverse_sbox, . - __aes_arm64_inverse_sbox
+
ENTRY(__aes_arm64_encrypt)
- do_crypt fround, crypto_ft_tab, crypto_fl_tab
+ do_crypt fround, crypto_ft_tab, crypto_ft_tab + 1, 2
ENDPROC(__aes_arm64_encrypt)
.align 5
ENTRY(__aes_arm64_decrypt)
- do_crypt iround, crypto_it_tab, crypto_il_tab
+ do_crypt iround, crypto_it_tab, __aes_arm64_inverse_sbox, 0
ENDPROC(__aes_arm64_decrypt)
diff --git a/arch/arm64/crypto/aes-ctr-fallback.h b/arch/arm64/crypto/aes-ctr-fallback.h
new file mode 100644
index 000000000000..c9285717b6b5
--- /dev/null
+++ b/arch/arm64/crypto/aes-ctr-fallback.h
@@ -0,0 +1,53 @@
+/*
+ * Fallback for sync aes(ctr) in contexts where kernel mode NEON
+ * is not allowed
+ *
+ * Copyright (C) 2017 Linaro Ltd <ard.biesheuvel@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <crypto/aes.h>
+#include <crypto/internal/skcipher.h>
+
+asmlinkage void __aes_arm64_encrypt(u32 *rk, u8 *out, const u8 *in, int rounds);
+
+static inline int aes_ctr_encrypt_fallback(struct crypto_aes_ctx *ctx,
+ struct skcipher_request *req)
+{
+ struct skcipher_walk walk;
+ u8 buf[AES_BLOCK_SIZE];
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, true);
+
+ while (walk.nbytes > 0) {
+ u8 *dst = walk.dst.virt.addr;
+ u8 *src = walk.src.virt.addr;
+ int nbytes = walk.nbytes;
+ int tail = 0;
+
+ if (nbytes < walk.total) {
+ nbytes = round_down(nbytes, AES_BLOCK_SIZE);
+ tail = walk.nbytes % AES_BLOCK_SIZE;
+ }
+
+ do {
+ int bsize = min(nbytes, AES_BLOCK_SIZE);
+
+ __aes_arm64_encrypt(ctx->key_enc, buf, walk.iv,
+ 6 + ctx->key_length / 4);
+ crypto_xor_cpy(dst, src, buf, bsize);
+ crypto_inc(walk.iv, AES_BLOCK_SIZE);
+
+ dst += AES_BLOCK_SIZE;
+ src += AES_BLOCK_SIZE;
+ nbytes -= AES_BLOCK_SIZE;
+ } while (nbytes > 0);
+
+ err = skcipher_walk_done(&walk, tail);
+ }
+ return err;
+}
diff --git a/arch/arm64/crypto/aes-glue.c b/arch/arm64/crypto/aes-glue.c
index bcf596b0197e..998ba519a026 100644
--- a/arch/arm64/crypto/aes-glue.c
+++ b/arch/arm64/crypto/aes-glue.c
@@ -10,6 +10,7 @@
#include <asm/neon.h>
#include <asm/hwcap.h>
+#include <asm/simd.h>
#include <crypto/aes.h>
#include <crypto/internal/hash.h>
#include <crypto/internal/simd.h>
@@ -19,6 +20,7 @@
#include <crypto/xts.h>
#include "aes-ce-setkey.h"
+#include "aes-ctr-fallback.h"
#ifdef USE_V8_CRYPTO_EXTENSIONS
#define MODE "ce"
@@ -241,9 +243,7 @@ static int ctr_encrypt(struct skcipher_request *req)
aes_ctr_encrypt(tail, NULL, (u8 *)ctx->key_enc, rounds,
blocks, walk.iv, first);
- if (tdst != tsrc)
- memcpy(tdst, tsrc, nbytes);
- crypto_xor(tdst, tail, nbytes);
+ crypto_xor_cpy(tdst, tsrc, tail, nbytes);
err = skcipher_walk_done(&walk, 0);
}
kernel_neon_end();
@@ -251,6 +251,17 @@ static int ctr_encrypt(struct skcipher_request *req)
return err;
}
+static int ctr_encrypt_sync(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ if (!may_use_simd())
+ return aes_ctr_encrypt_fallback(ctx, req);
+
+ return ctr_encrypt(req);
+}
+
static int xts_encrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
@@ -357,8 +368,8 @@ static struct skcipher_alg aes_algs[] = { {
.ivsize = AES_BLOCK_SIZE,
.chunksize = AES_BLOCK_SIZE,
.setkey = skcipher_aes_setkey,
- .encrypt = ctr_encrypt,
- .decrypt = ctr_encrypt,
+ .encrypt = ctr_encrypt_sync,
+ .decrypt = ctr_encrypt_sync,
}, {
.base = {
.cra_name = "__xts(aes)",
@@ -460,11 +471,35 @@ static int mac_init(struct shash_desc *desc)
return 0;
}
+static void mac_do_update(struct crypto_aes_ctx *ctx, u8 const in[], int blocks,
+ u8 dg[], int enc_before, int enc_after)
+{
+ int rounds = 6 + ctx->key_length / 4;
+
+ if (may_use_simd()) {
+ kernel_neon_begin();
+ aes_mac_update(in, ctx->key_enc, rounds, blocks, dg, enc_before,
+ enc_after);
+ kernel_neon_end();
+ } else {
+ if (enc_before)
+ __aes_arm64_encrypt(ctx->key_enc, dg, dg, rounds);
+
+ while (blocks--) {
+ crypto_xor(dg, in, AES_BLOCK_SIZE);
+ in += AES_BLOCK_SIZE;
+
+ if (blocks || enc_after)
+ __aes_arm64_encrypt(ctx->key_enc, dg, dg,
+ rounds);
+ }
+ }
+}
+
static int mac_update(struct shash_desc *desc, const u8 *p, unsigned int len)
{
struct mac_tfm_ctx *tctx = crypto_shash_ctx(desc->tfm);
struct mac_desc_ctx *ctx = shash_desc_ctx(desc);
- int rounds = 6 + tctx->key.key_length / 4;
while (len > 0) {
unsigned int l;
@@ -476,10 +511,8 @@ static int mac_update(struct shash_desc *desc, const u8 *p, unsigned int len)
len %= AES_BLOCK_SIZE;
- kernel_neon_begin();
- aes_mac_update(p, tctx->key.key_enc, rounds, blocks,
- ctx->dg, (ctx->len != 0), (len != 0));
- kernel_neon_end();
+ mac_do_update(&tctx->key, p, blocks, ctx->dg,
+ (ctx->len != 0), (len != 0));
p += blocks * AES_BLOCK_SIZE;
@@ -507,11 +540,8 @@ static int cbcmac_final(struct shash_desc *desc, u8 *out)
{
struct mac_tfm_ctx *tctx = crypto_shash_ctx(desc->tfm);
struct mac_desc_ctx *ctx = shash_desc_ctx(desc);
- int rounds = 6 + tctx->key.key_length / 4;
- kernel_neon_begin();
- aes_mac_update(NULL, tctx->key.key_enc, rounds, 0, ctx->dg, 1, 0);
- kernel_neon_end();
+ mac_do_update(&tctx->key, NULL, 0, ctx->dg, 1, 0);
memcpy(out, ctx->dg, AES_BLOCK_SIZE);
@@ -522,7 +552,6 @@ static int cmac_final(struct shash_desc *desc, u8 *out)
{
struct mac_tfm_ctx *tctx = crypto_shash_ctx(desc->tfm);
struct mac_desc_ctx *ctx = shash_desc_ctx(desc);
- int rounds = 6 + tctx->key.key_length / 4;
u8 *consts = tctx->consts;
if (ctx->len != AES_BLOCK_SIZE) {
@@ -530,9 +559,7 @@ static int cmac_final(struct shash_desc *desc, u8 *out)
consts += AES_BLOCK_SIZE;
}
- kernel_neon_begin();
- aes_mac_update(consts, tctx->key.key_enc, rounds, 1, ctx->dg, 0, 1);
- kernel_neon_end();
+ mac_do_update(&tctx->key, consts, 1, ctx->dg, 0, 1);
memcpy(out, ctx->dg, AES_BLOCK_SIZE);
diff --git a/arch/arm64/crypto/aes-neonbs-glue.c b/arch/arm64/crypto/aes-neonbs-glue.c
index db2501d93550..c55d68ccb89f 100644
--- a/arch/arm64/crypto/aes-neonbs-glue.c
+++ b/arch/arm64/crypto/aes-neonbs-glue.c
@@ -1,7 +1,7 @@
/*
* Bit sliced AES using NEON instructions
*
- * Copyright (C) 2016 Linaro Ltd <ard.biesheuvel@linaro.org>
+ * Copyright (C) 2016 - 2017 Linaro Ltd <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -9,12 +9,15 @@
*/
#include <asm/neon.h>
+#include <asm/simd.h>
#include <crypto/aes.h>
#include <crypto/internal/simd.h>
#include <crypto/internal/skcipher.h>
#include <crypto/xts.h>
#include <linux/module.h>
+#include "aes-ctr-fallback.h"
+
MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
MODULE_LICENSE("GPL v2");
@@ -58,6 +61,11 @@ struct aesbs_cbc_ctx {
u32 enc[AES_MAX_KEYLENGTH_U32];
};
+struct aesbs_ctr_ctx {
+ struct aesbs_ctx key; /* must be first member */
+ struct crypto_aes_ctx fallback;
+};
+
struct aesbs_xts_ctx {
struct aesbs_ctx key;
u32 twkey[AES_MAX_KEYLENGTH_U32];
@@ -196,6 +204,25 @@ static int cbc_decrypt(struct skcipher_request *req)
return err;
}
+static int aesbs_ctr_setkey_sync(struct crypto_skcipher *tfm, const u8 *in_key,
+ unsigned int key_len)
+{
+ struct aesbs_ctr_ctx *ctx = crypto_skcipher_ctx(tfm);
+ int err;
+
+ err = crypto_aes_expand_key(&ctx->fallback, in_key, key_len);
+ if (err)
+ return err;
+
+ ctx->key.rounds = 6 + key_len / 4;
+
+ kernel_neon_begin();
+ aesbs_convert_key(ctx->key.rk, ctx->fallback.key_enc, ctx->key.rounds);
+ kernel_neon_end();
+
+ return 0;
+}
+
static int ctr_encrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
@@ -224,9 +251,8 @@ static int ctr_encrypt(struct skcipher_request *req)
u8 *dst = walk.dst.virt.addr + blocks * AES_BLOCK_SIZE;
u8 *src = walk.src.virt.addr + blocks * AES_BLOCK_SIZE;
- if (dst != src)
- memcpy(dst, src, walk.total % AES_BLOCK_SIZE);
- crypto_xor(dst, final, walk.total % AES_BLOCK_SIZE);
+ crypto_xor_cpy(dst, src, final,
+ walk.total % AES_BLOCK_SIZE);
err = skcipher_walk_done(&walk, 0);
break;
@@ -260,6 +286,17 @@ static int aesbs_xts_setkey(struct crypto_skcipher *tfm, const u8 *in_key,
return aesbs_setkey(tfm, in_key, key_len);
}
+static int ctr_encrypt_sync(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct aesbs_ctr_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ if (!may_use_simd())
+ return aes_ctr_encrypt_fallback(&ctx->fallback, req);
+
+ return ctr_encrypt(req);
+}
+
static int __xts_crypt(struct skcipher_request *req,
void (*fn)(u8 out[], u8 const in[], u8 const rk[],
int rounds, int blocks, u8 iv[]))
@@ -356,7 +393,7 @@ static struct skcipher_alg aes_algs[] = { {
.base.cra_driver_name = "ctr-aes-neonbs",
.base.cra_priority = 250 - 1,
.base.cra_blocksize = 1,
- .base.cra_ctxsize = sizeof(struct aesbs_ctx),
+ .base.cra_ctxsize = sizeof(struct aesbs_ctr_ctx),
.base.cra_module = THIS_MODULE,
.min_keysize = AES_MIN_KEY_SIZE,
@@ -364,9 +401,9 @@ static struct skcipher_alg aes_algs[] = { {
.chunksize = AES_BLOCK_SIZE,
.walksize = 8 * AES_BLOCK_SIZE,
.ivsize = AES_BLOCK_SIZE,
- .setkey = aesbs_setkey,
- .encrypt = ctr_encrypt,
- .decrypt = ctr_encrypt,
+ .setkey = aesbs_ctr_setkey_sync,
+ .encrypt = ctr_encrypt_sync,
+ .decrypt = ctr_encrypt_sync,
}, {
.base.cra_name = "__xts(aes)",
.base.cra_driver_name = "__xts-aes-neonbs",
diff --git a/arch/arm64/crypto/chacha20-neon-glue.c b/arch/arm64/crypto/chacha20-neon-glue.c
index a7cd575ea223..cbdb75d15cd0 100644
--- a/arch/arm64/crypto/chacha20-neon-glue.c
+++ b/arch/arm64/crypto/chacha20-neon-glue.c
@@ -1,7 +1,7 @@
/*
* ChaCha20 256-bit cipher algorithm, RFC7539, arm64 NEON functions
*
- * Copyright (C) 2016 Linaro, Ltd. <ard.biesheuvel@linaro.org>
+ * Copyright (C) 2016 - 2017 Linaro, Ltd. <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -26,6 +26,7 @@
#include <asm/hwcap.h>
#include <asm/neon.h>
+#include <asm/simd.h>
asmlinkage void chacha20_block_xor_neon(u32 *state, u8 *dst, const u8 *src);
asmlinkage void chacha20_4block_xor_neon(u32 *state, u8 *dst, const u8 *src);
@@ -64,7 +65,7 @@ static int chacha20_neon(struct skcipher_request *req)
u32 state[16];
int err;
- if (req->cryptlen <= CHACHA20_BLOCK_SIZE)
+ if (!may_use_simd() || req->cryptlen <= CHACHA20_BLOCK_SIZE)
return crypto_chacha20_crypt(req);
err = skcipher_walk_virt(&walk, req, true);
diff --git a/arch/arm64/crypto/crc32-ce-glue.c b/arch/arm64/crypto/crc32-ce-glue.c
index eccb1ae90064..624f4137918c 100644
--- a/arch/arm64/crypto/crc32-ce-glue.c
+++ b/arch/arm64/crypto/crc32-ce-glue.c
@@ -1,7 +1,7 @@
/*
* Accelerated CRC32(C) using arm64 NEON and Crypto Extensions instructions
*
- * Copyright (C) 2016 Linaro Ltd <ard.biesheuvel@linaro.org>
+ * Copyright (C) 2016 - 2017 Linaro Ltd <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -19,6 +19,7 @@
#include <asm/hwcap.h>
#include <asm/neon.h>
+#include <asm/simd.h>
#include <asm/unaligned.h>
#define PMULL_MIN_LEN 64L /* minimum size of buffer
@@ -105,10 +106,10 @@ static int crc32_pmull_update(struct shash_desc *desc, const u8 *data,
length -= l;
}
- if (length >= PMULL_MIN_LEN) {
+ if (length >= PMULL_MIN_LEN && may_use_simd()) {
l = round_down(length, SCALE_F);
- kernel_neon_begin_partial(10);
+ kernel_neon_begin();
*crc = crc32_pmull_le(data, l, *crc);
kernel_neon_end();
@@ -137,10 +138,10 @@ static int crc32c_pmull_update(struct shash_desc *desc, const u8 *data,
length -= l;
}
- if (length >= PMULL_MIN_LEN) {
+ if (length >= PMULL_MIN_LEN && may_use_simd()) {
l = round_down(length, SCALE_F);
- kernel_neon_begin_partial(10);
+ kernel_neon_begin();
*crc = crc32c_pmull_le(data, l, *crc);
kernel_neon_end();
diff --git a/arch/arm64/crypto/crct10dif-ce-glue.c b/arch/arm64/crypto/crct10dif-ce-glue.c
index 60cb590c2590..96f0cae4a022 100644
--- a/arch/arm64/crypto/crct10dif-ce-glue.c
+++ b/arch/arm64/crypto/crct10dif-ce-glue.c
@@ -1,7 +1,7 @@
/*
* Accelerated CRC-T10DIF using arm64 NEON and Crypto Extensions instructions
*
- * Copyright (C) 2016 Linaro Ltd <ard.biesheuvel@linaro.org>
+ * Copyright (C) 2016 - 2017 Linaro Ltd <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -18,6 +18,7 @@
#include <crypto/internal/hash.h>
#include <asm/neon.h>
+#include <asm/simd.h>
#define CRC_T10DIF_PMULL_CHUNK_SIZE 16U
@@ -48,9 +49,13 @@ static int crct10dif_update(struct shash_desc *desc, const u8 *data,
}
if (length > 0) {
- kernel_neon_begin_partial(14);
- *crc = crc_t10dif_pmull(*crc, data, length);
- kernel_neon_end();
+ if (may_use_simd()) {
+ kernel_neon_begin();
+ *crc = crc_t10dif_pmull(*crc, data, length);
+ kernel_neon_end();
+ } else {
+ *crc = crc_t10dif_generic(*crc, data, length);
+ }
}
return 0;
diff --git a/arch/arm64/crypto/ghash-ce-core.S b/arch/arm64/crypto/ghash-ce-core.S
index f0bb9f0b524f..11ebf1ae248a 100644
--- a/arch/arm64/crypto/ghash-ce-core.S
+++ b/arch/arm64/crypto/ghash-ce-core.S
@@ -1,7 +1,7 @@
/*
* Accelerated GHASH implementation with ARMv8 PMULL instructions.
*
- * Copyright (C) 2014 Linaro Ltd. <ard.biesheuvel@linaro.org>
+ * Copyright (C) 2014 - 2017 Linaro Ltd. <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
@@ -11,31 +11,215 @@
#include <linux/linkage.h>
#include <asm/assembler.h>
- SHASH .req v0
- SHASH2 .req v1
- T1 .req v2
- T2 .req v3
- MASK .req v4
- XL .req v5
- XM .req v6
- XH .req v7
- IN1 .req v7
+ SHASH .req v0
+ SHASH2 .req v1
+ T1 .req v2
+ T2 .req v3
+ MASK .req v4
+ XL .req v5
+ XM .req v6
+ XH .req v7
+ IN1 .req v7
+
+ k00_16 .req v8
+ k32_48 .req v9
+
+ t3 .req v10
+ t4 .req v11
+ t5 .req v12
+ t6 .req v13
+ t7 .req v14
+ t8 .req v15
+ t9 .req v16
+
+ perm1 .req v17
+ perm2 .req v18
+ perm3 .req v19
+
+ sh1 .req v20
+ sh2 .req v21
+ sh3 .req v22
+ sh4 .req v23
+
+ ss1 .req v24
+ ss2 .req v25
+ ss3 .req v26
+ ss4 .req v27
.text
.arch armv8-a+crypto
- /*
- * void pmull_ghash_update(int blocks, u64 dg[], const char *src,
- * struct ghash_key const *k, const char *head)
- */
-ENTRY(pmull_ghash_update)
+ .macro __pmull_p64, rd, rn, rm
+ pmull \rd\().1q, \rn\().1d, \rm\().1d
+ .endm
+
+ .macro __pmull2_p64, rd, rn, rm
+ pmull2 \rd\().1q, \rn\().2d, \rm\().2d
+ .endm
+
+ .macro __pmull_p8, rq, ad, bd
+ ext t3.8b, \ad\().8b, \ad\().8b, #1 // A1
+ ext t5.8b, \ad\().8b, \ad\().8b, #2 // A2
+ ext t7.8b, \ad\().8b, \ad\().8b, #3 // A3
+
+ __pmull_p8_\bd \rq, \ad
+ .endm
+
+ .macro __pmull2_p8, rq, ad, bd
+ tbl t3.16b, {\ad\().16b}, perm1.16b // A1
+ tbl t5.16b, {\ad\().16b}, perm2.16b // A2
+ tbl t7.16b, {\ad\().16b}, perm3.16b // A3
+
+ __pmull2_p8_\bd \rq, \ad
+ .endm
+
+ .macro __pmull_p8_SHASH, rq, ad
+ __pmull_p8_tail \rq, \ad\().8b, SHASH.8b, 8b,, sh1, sh2, sh3, sh4
+ .endm
+
+ .macro __pmull_p8_SHASH2, rq, ad
+ __pmull_p8_tail \rq, \ad\().8b, SHASH2.8b, 8b,, ss1, ss2, ss3, ss4
+ .endm
+
+ .macro __pmull2_p8_SHASH, rq, ad
+ __pmull_p8_tail \rq, \ad\().16b, SHASH.16b, 16b, 2, sh1, sh2, sh3, sh4
+ .endm
+
+ .macro __pmull_p8_tail, rq, ad, bd, nb, t, b1, b2, b3, b4
+ pmull\t t3.8h, t3.\nb, \bd // F = A1*B
+ pmull\t t4.8h, \ad, \b1\().\nb // E = A*B1
+ pmull\t t5.8h, t5.\nb, \bd // H = A2*B
+ pmull\t t6.8h, \ad, \b2\().\nb // G = A*B2
+ pmull\t t7.8h, t7.\nb, \bd // J = A3*B
+ pmull\t t8.8h, \ad, \b3\().\nb // I = A*B3
+ pmull\t t9.8h, \ad, \b4\().\nb // K = A*B4
+ pmull\t \rq\().8h, \ad, \bd // D = A*B
+
+ eor t3.16b, t3.16b, t4.16b // L = E + F
+ eor t5.16b, t5.16b, t6.16b // M = G + H
+ eor t7.16b, t7.16b, t8.16b // N = I + J
+
+ uzp1 t4.2d, t3.2d, t5.2d
+ uzp2 t3.2d, t3.2d, t5.2d
+ uzp1 t6.2d, t7.2d, t9.2d
+ uzp2 t7.2d, t7.2d, t9.2d
+
+ // t3 = (L) (P0 + P1) << 8
+ // t5 = (M) (P2 + P3) << 16
+ eor t4.16b, t4.16b, t3.16b
+ and t3.16b, t3.16b, k32_48.16b
+
+ // t7 = (N) (P4 + P5) << 24
+ // t9 = (K) (P6 + P7) << 32
+ eor t6.16b, t6.16b, t7.16b
+ and t7.16b, t7.16b, k00_16.16b
+
+ eor t4.16b, t4.16b, t3.16b
+ eor t6.16b, t6.16b, t7.16b
+
+ zip2 t5.2d, t4.2d, t3.2d
+ zip1 t3.2d, t4.2d, t3.2d
+ zip2 t9.2d, t6.2d, t7.2d
+ zip1 t7.2d, t6.2d, t7.2d
+
+ ext t3.16b, t3.16b, t3.16b, #15
+ ext t5.16b, t5.16b, t5.16b, #14
+ ext t7.16b, t7.16b, t7.16b, #13
+ ext t9.16b, t9.16b, t9.16b, #12
+
+ eor t3.16b, t3.16b, t5.16b
+ eor t7.16b, t7.16b, t9.16b
+ eor \rq\().16b, \rq\().16b, t3.16b
+ eor \rq\().16b, \rq\().16b, t7.16b
+ .endm
+
+ .macro __pmull_pre_p64
+ movi MASK.16b, #0xe1
+ shl MASK.2d, MASK.2d, #57
+ .endm
+
+ .macro __pmull_pre_p8
+ // k00_16 := 0x0000000000000000_000000000000ffff
+ // k32_48 := 0x00000000ffffffff_0000ffffffffffff
+ movi k32_48.2d, #0xffffffff
+ mov k32_48.h[2], k32_48.h[0]
+ ushr k00_16.2d, k32_48.2d, #32
+
+ // prepare the permutation vectors
+ mov_q x5, 0x080f0e0d0c0b0a09
+ movi T1.8b, #8
+ dup perm1.2d, x5
+ eor perm1.16b, perm1.16b, T1.16b
+ ushr perm2.2d, perm1.2d, #8
+ ushr perm3.2d, perm1.2d, #16
+ ushr T1.2d, perm1.2d, #24
+ sli perm2.2d, perm1.2d, #56
+ sli perm3.2d, perm1.2d, #48
+ sli T1.2d, perm1.2d, #40
+
+ // precompute loop invariants
+ tbl sh1.16b, {SHASH.16b}, perm1.16b
+ tbl sh2.16b, {SHASH.16b}, perm2.16b
+ tbl sh3.16b, {SHASH.16b}, perm3.16b
+ tbl sh4.16b, {SHASH.16b}, T1.16b
+ ext ss1.8b, SHASH2.8b, SHASH2.8b, #1
+ ext ss2.8b, SHASH2.8b, SHASH2.8b, #2
+ ext ss3.8b, SHASH2.8b, SHASH2.8b, #3
+ ext ss4.8b, SHASH2.8b, SHASH2.8b, #4
+ .endm
+
+ //
+ // PMULL (64x64->128) based reduction for CPUs that can do
+ // it in a single instruction.
+ //
+ .macro __pmull_reduce_p64
+ pmull T2.1q, XL.1d, MASK.1d
+ eor XM.16b, XM.16b, T1.16b
+
+ mov XH.d[0], XM.d[1]
+ mov XM.d[1], XL.d[0]
+
+ eor XL.16b, XM.16b, T2.16b
+ ext T2.16b, XL.16b, XL.16b, #8
+ pmull XL.1q, XL.1d, MASK.1d
+ .endm
+
+ //
+ // Alternative reduction for CPUs that lack support for the
+ // 64x64->128 PMULL instruction
+ //
+ .macro __pmull_reduce_p8
+ eor XM.16b, XM.16b, T1.16b
+
+ mov XL.d[1], XM.d[0]
+ mov XH.d[0], XM.d[1]
+
+ shl T1.2d, XL.2d, #57
+ shl T2.2d, XL.2d, #62
+ eor T2.16b, T2.16b, T1.16b
+ shl T1.2d, XL.2d, #63
+ eor T2.16b, T2.16b, T1.16b
+ ext T1.16b, XL.16b, XH.16b, #8
+ eor T2.16b, T2.16b, T1.16b
+
+ mov XL.d[1], T2.d[0]
+ mov XH.d[0], T2.d[1]
+
+ ushr T2.2d, XL.2d, #1
+ eor XH.16b, XH.16b, XL.16b
+ eor XL.16b, XL.16b, T2.16b
+ ushr T2.2d, T2.2d, #6
+ ushr XL.2d, XL.2d, #1
+ .endm
+
+ .macro __pmull_ghash, pn
ld1 {SHASH.2d}, [x3]
ld1 {XL.2d}, [x1]
- movi MASK.16b, #0xe1
ext SHASH2.16b, SHASH.16b, SHASH.16b, #8
- shl MASK.2d, MASK.2d, #57
eor SHASH2.16b, SHASH2.16b, SHASH.16b
+ __pmull_pre_\pn
+
/* do the head block first, if supplied */
cbz x4, 0f
ld1 {T1.2d}, [x4]
@@ -52,28 +236,209 @@ CPU_LE( rev64 T1.16b, T1.16b )
eor T1.16b, T1.16b, T2.16b
eor XL.16b, XL.16b, IN1.16b
+ __pmull2_\pn XH, XL, SHASH // a1 * b1
+ eor T1.16b, T1.16b, XL.16b
+ __pmull_\pn XL, XL, SHASH // a0 * b0
+ __pmull_\pn XM, T1, SHASH2 // (a1 + a0)(b1 + b0)
+
+ eor T2.16b, XL.16b, XH.16b
+ ext T1.16b, XL.16b, XH.16b, #8
+ eor XM.16b, XM.16b, T2.16b
+
+ __pmull_reduce_\pn
+
+ eor T2.16b, T2.16b, XH.16b
+ eor XL.16b, XL.16b, T2.16b
+
+ cbnz w0, 0b
+
+ st1 {XL.2d}, [x1]
+ ret
+ .endm
+
+ /*
+ * void pmull_ghash_update(int blocks, u64 dg[], const char *src,
+ * struct ghash_key const *k, const char *head)
+ */
+ENTRY(pmull_ghash_update_p64)
+ __pmull_ghash p64
+ENDPROC(pmull_ghash_update_p64)
+
+ENTRY(pmull_ghash_update_p8)
+ __pmull_ghash p8
+ENDPROC(pmull_ghash_update_p8)
+
+ KS .req v8
+ CTR .req v9
+ INP .req v10
+
+ .macro load_round_keys, rounds, rk
+ cmp \rounds, #12
+ blo 2222f /* 128 bits */
+ beq 1111f /* 192 bits */
+ ld1 {v17.4s-v18.4s}, [\rk], #32
+1111: ld1 {v19.4s-v20.4s}, [\rk], #32
+2222: ld1 {v21.4s-v24.4s}, [\rk], #64
+ ld1 {v25.4s-v28.4s}, [\rk], #64
+ ld1 {v29.4s-v31.4s}, [\rk]
+ .endm
+
+ .macro enc_round, state, key
+ aese \state\().16b, \key\().16b
+ aesmc \state\().16b, \state\().16b
+ .endm
+
+ .macro enc_block, state, rounds
+ cmp \rounds, #12
+ b.lo 2222f /* 128 bits */
+ b.eq 1111f /* 192 bits */
+ enc_round \state, v17
+ enc_round \state, v18
+1111: enc_round \state, v19
+ enc_round \state, v20
+2222: .irp key, v21, v22, v23, v24, v25, v26, v27, v28, v29
+ enc_round \state, \key
+ .endr
+ aese \state\().16b, v30.16b
+ eor \state\().16b, \state\().16b, v31.16b
+ .endm
+
+ .macro pmull_gcm_do_crypt, enc
+ ld1 {SHASH.2d}, [x4]
+ ld1 {XL.2d}, [x1]
+ ldr x8, [x5, #8] // load lower counter
+
+ movi MASK.16b, #0xe1
+ ext SHASH2.16b, SHASH.16b, SHASH.16b, #8
+CPU_LE( rev x8, x8 )
+ shl MASK.2d, MASK.2d, #57
+ eor SHASH2.16b, SHASH2.16b, SHASH.16b
+
+ .if \enc == 1
+ ld1 {KS.16b}, [x7]
+ .endif
+
+0: ld1 {CTR.8b}, [x5] // load upper counter
+ ld1 {INP.16b}, [x3], #16
+ rev x9, x8
+ add x8, x8, #1
+ sub w0, w0, #1
+ ins CTR.d[1], x9 // set lower counter
+
+ .if \enc == 1
+ eor INP.16b, INP.16b, KS.16b // encrypt input
+ st1 {INP.16b}, [x2], #16
+ .endif
+
+ rev64 T1.16b, INP.16b
+
+ cmp w6, #12
+ b.ge 2f // AES-192/256?
+
+1: enc_round CTR, v21
+
+ ext T2.16b, XL.16b, XL.16b, #8
+ ext IN1.16b, T1.16b, T1.16b, #8
+
+ enc_round CTR, v22
+
+ eor T1.16b, T1.16b, T2.16b
+ eor XL.16b, XL.16b, IN1.16b
+
+ enc_round CTR, v23
+
pmull2 XH.1q, SHASH.2d, XL.2d // a1 * b1
eor T1.16b, T1.16b, XL.16b
+
+ enc_round CTR, v24
+
pmull XL.1q, SHASH.1d, XL.1d // a0 * b0
pmull XM.1q, SHASH2.1d, T1.1d // (a1 + a0)(b1 + b0)
+ enc_round CTR, v25
+
ext T1.16b, XL.16b, XH.16b, #8
eor T2.16b, XL.16b, XH.16b
eor XM.16b, XM.16b, T1.16b
+
+ enc_round CTR, v26
+
eor XM.16b, XM.16b, T2.16b
pmull T2.1q, XL.1d, MASK.1d
+ enc_round CTR, v27
+
mov XH.d[0], XM.d[1]
mov XM.d[1], XL.d[0]
+ enc_round CTR, v28
+
eor XL.16b, XM.16b, T2.16b
+
+ enc_round CTR, v29
+
ext T2.16b, XL.16b, XL.16b, #8
+
+ aese CTR.16b, v30.16b
+
pmull XL.1q, XL.1d, MASK.1d
eor T2.16b, T2.16b, XH.16b
+
+ eor KS.16b, CTR.16b, v31.16b
+
eor XL.16b, XL.16b, T2.16b
+ .if \enc == 0
+ eor INP.16b, INP.16b, KS.16b
+ st1 {INP.16b}, [x2], #16
+ .endif
+
cbnz w0, 0b
+CPU_LE( rev x8, x8 )
st1 {XL.2d}, [x1]
+ str x8, [x5, #8] // store lower counter
+
+ .if \enc == 1
+ st1 {KS.16b}, [x7]
+ .endif
+
+ ret
+
+2: b.eq 3f // AES-192?
+ enc_round CTR, v17
+ enc_round CTR, v18
+3: enc_round CTR, v19
+ enc_round CTR, v20
+ b 1b
+ .endm
+
+ /*
+ * void pmull_gcm_encrypt(int blocks, u64 dg[], u8 dst[], const u8 src[],
+ * struct ghash_key const *k, u8 ctr[],
+ * int rounds, u8 ks[])
+ */
+ENTRY(pmull_gcm_encrypt)
+ pmull_gcm_do_crypt 1
+ENDPROC(pmull_gcm_encrypt)
+
+ /*
+ * void pmull_gcm_decrypt(int blocks, u64 dg[], u8 dst[], const u8 src[],
+ * struct ghash_key const *k, u8 ctr[],
+ * int rounds)
+ */
+ENTRY(pmull_gcm_decrypt)
+ pmull_gcm_do_crypt 0
+ENDPROC(pmull_gcm_decrypt)
+
+ /*
+ * void pmull_gcm_encrypt_block(u8 dst[], u8 src[], u8 rk[], int rounds)
+ */
+ENTRY(pmull_gcm_encrypt_block)
+ cbz x2, 0f
+ load_round_keys w3, x2
+0: ld1 {v0.16b}, [x1]
+ enc_block v0, w3
+ st1 {v0.16b}, [x0]
ret
-ENDPROC(pmull_ghash_update)
+ENDPROC(pmull_gcm_encrypt_block)
diff --git a/arch/arm64/crypto/ghash-ce-glue.c b/arch/arm64/crypto/ghash-ce-glue.c
index 833ec1e3f3e9..cfc9c92814fd 100644
--- a/arch/arm64/crypto/ghash-ce-glue.c
+++ b/arch/arm64/crypto/ghash-ce-glue.c
@@ -1,7 +1,7 @@
/*
* Accelerated GHASH implementation with ARMv8 PMULL instructions.
*
- * Copyright (C) 2014 Linaro Ltd. <ard.biesheuvel@linaro.org>
+ * Copyright (C) 2014 - 2017 Linaro Ltd. <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
@@ -9,22 +9,33 @@
*/
#include <asm/neon.h>
+#include <asm/simd.h>
#include <asm/unaligned.h>
+#include <crypto/aes.h>
+#include <crypto/algapi.h>
+#include <crypto/b128ops.h>
+#include <crypto/gf128mul.h>
+#include <crypto/internal/aead.h>
#include <crypto/internal/hash.h>
+#include <crypto/internal/skcipher.h>
+#include <crypto/scatterwalk.h>
#include <linux/cpufeature.h>
#include <linux/crypto.h>
#include <linux/module.h>
-MODULE_DESCRIPTION("GHASH secure hash using ARMv8 Crypto Extensions");
+MODULE_DESCRIPTION("GHASH and AES-GCM using ARMv8 Crypto Extensions");
MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
MODULE_LICENSE("GPL v2");
+MODULE_ALIAS_CRYPTO("ghash");
#define GHASH_BLOCK_SIZE 16
#define GHASH_DIGEST_SIZE 16
+#define GCM_IV_SIZE 12
struct ghash_key {
u64 a;
u64 b;
+ be128 k;
};
struct ghash_desc_ctx {
@@ -33,8 +44,35 @@ struct ghash_desc_ctx {
u32 count;
};
-asmlinkage void pmull_ghash_update(int blocks, u64 dg[], const char *src,
- struct ghash_key const *k, const char *head);
+struct gcm_aes_ctx {
+ struct crypto_aes_ctx aes_key;
+ struct ghash_key ghash_key;
+};
+
+asmlinkage void pmull_ghash_update_p64(int blocks, u64 dg[], const char *src,
+ struct ghash_key const *k,
+ const char *head);
+
+asmlinkage void pmull_ghash_update_p8(int blocks, u64 dg[], const char *src,
+ struct ghash_key const *k,
+ const char *head);
+
+static void (*pmull_ghash_update)(int blocks, u64 dg[], const char *src,
+ struct ghash_key const *k,
+ const char *head);
+
+asmlinkage void pmull_gcm_encrypt(int blocks, u64 dg[], u8 dst[],
+ const u8 src[], struct ghash_key const *k,
+ u8 ctr[], int rounds, u8 ks[]);
+
+asmlinkage void pmull_gcm_decrypt(int blocks, u64 dg[], u8 dst[],
+ const u8 src[], struct ghash_key const *k,
+ u8 ctr[], int rounds);
+
+asmlinkage void pmull_gcm_encrypt_block(u8 dst[], u8 const src[],
+ u32 const rk[], int rounds);
+
+asmlinkage void __aes_arm64_encrypt(u32 *rk, u8 *out, const u8 *in, int rounds);
static int ghash_init(struct shash_desc *desc)
{
@@ -44,6 +82,36 @@ static int ghash_init(struct shash_desc *desc)
return 0;
}
+static void ghash_do_update(int blocks, u64 dg[], const char *src,
+ struct ghash_key *key, const char *head)
+{
+ if (likely(may_use_simd())) {
+ kernel_neon_begin();
+ pmull_ghash_update(blocks, dg, src, key, head);
+ kernel_neon_end();
+ } else {
+ be128 dst = { cpu_to_be64(dg[1]), cpu_to_be64(dg[0]) };
+
+ do {
+ const u8 *in = src;
+
+ if (head) {
+ in = head;
+ blocks++;
+ head = NULL;
+ } else {
+ src += GHASH_BLOCK_SIZE;
+ }
+
+ crypto_xor((u8 *)&dst, in, GHASH_BLOCK_SIZE);
+ gf128mul_lle(&dst, &key->k);
+ } while (--blocks);
+
+ dg[0] = be64_to_cpu(dst.b);
+ dg[1] = be64_to_cpu(dst.a);
+ }
+}
+
static int ghash_update(struct shash_desc *desc, const u8 *src,
unsigned int len)
{
@@ -67,10 +135,9 @@ static int ghash_update(struct shash_desc *desc, const u8 *src,
blocks = len / GHASH_BLOCK_SIZE;
len %= GHASH_BLOCK_SIZE;
- kernel_neon_begin_partial(8);
- pmull_ghash_update(blocks, ctx->digest, src, key,
- partial ? ctx->buf : NULL);
- kernel_neon_end();
+ ghash_do_update(blocks, ctx->digest, src, key,
+ partial ? ctx->buf : NULL);
+
src += blocks * GHASH_BLOCK_SIZE;
partial = 0;
}
@@ -89,9 +156,7 @@ static int ghash_final(struct shash_desc *desc, u8 *dst)
memset(ctx->buf + partial, 0, GHASH_BLOCK_SIZE - partial);
- kernel_neon_begin_partial(8);
- pmull_ghash_update(1, ctx->digest, ctx->buf, key, NULL);
- kernel_neon_end();
+ ghash_do_update(1, ctx->digest, ctx->buf, key, NULL);
}
put_unaligned_be64(ctx->digest[1], dst);
put_unaligned_be64(ctx->digest[0], dst + 8);
@@ -100,16 +165,13 @@ static int ghash_final(struct shash_desc *desc, u8 *dst)
return 0;
}
-static int ghash_setkey(struct crypto_shash *tfm,
- const u8 *inkey, unsigned int keylen)
+static int __ghash_setkey(struct ghash_key *key,
+ const u8 *inkey, unsigned int keylen)
{
- struct ghash_key *key = crypto_shash_ctx(tfm);
u64 a, b;
- if (keylen != GHASH_BLOCK_SIZE) {
- crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
- return -EINVAL;
- }
+ /* needed for the fallback */
+ memcpy(&key->k, inkey, GHASH_BLOCK_SIZE);
/* perform multiplication by 'x' in GF(2^128) */
b = get_unaligned_be64(inkey);
@@ -124,33 +186,418 @@ static int ghash_setkey(struct crypto_shash *tfm,
return 0;
}
+static int ghash_setkey(struct crypto_shash *tfm,
+ const u8 *inkey, unsigned int keylen)
+{
+ struct ghash_key *key = crypto_shash_ctx(tfm);
+
+ if (keylen != GHASH_BLOCK_SIZE) {
+ crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ return -EINVAL;
+ }
+
+ return __ghash_setkey(key, inkey, keylen);
+}
+
static struct shash_alg ghash_alg = {
- .digestsize = GHASH_DIGEST_SIZE,
- .init = ghash_init,
- .update = ghash_update,
- .final = ghash_final,
- .setkey = ghash_setkey,
- .descsize = sizeof(struct ghash_desc_ctx),
- .base = {
- .cra_name = "ghash",
- .cra_driver_name = "ghash-ce",
- .cra_priority = 200,
- .cra_flags = CRYPTO_ALG_TYPE_SHASH,
- .cra_blocksize = GHASH_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct ghash_key),
- .cra_module = THIS_MODULE,
- },
+ .base.cra_name = "ghash",
+ .base.cra_driver_name = "ghash-ce",
+ .base.cra_priority = 200,
+ .base.cra_flags = CRYPTO_ALG_TYPE_SHASH,
+ .base.cra_blocksize = GHASH_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct ghash_key),
+ .base.cra_module = THIS_MODULE,
+
+ .digestsize = GHASH_DIGEST_SIZE,
+ .init = ghash_init,
+ .update = ghash_update,
+ .final = ghash_final,
+ .setkey = ghash_setkey,
+ .descsize = sizeof(struct ghash_desc_ctx),
+};
+
+static int num_rounds(struct crypto_aes_ctx *ctx)
+{
+ /*
+ * # of rounds specified by AES:
+ * 128 bit key 10 rounds
+ * 192 bit key 12 rounds
+ * 256 bit key 14 rounds
+ * => n byte key => 6 + (n/4) rounds
+ */
+ return 6 + ctx->key_length / 4;
+}
+
+static int gcm_setkey(struct crypto_aead *tfm, const u8 *inkey,
+ unsigned int keylen)
+{
+ struct gcm_aes_ctx *ctx = crypto_aead_ctx(tfm);
+ u8 key[GHASH_BLOCK_SIZE];
+ int ret;
+
+ ret = crypto_aes_expand_key(&ctx->aes_key, inkey, keylen);
+ if (ret) {
+ tfm->base.crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+ return -EINVAL;
+ }
+
+ __aes_arm64_encrypt(ctx->aes_key.key_enc, key, (u8[AES_BLOCK_SIZE]){},
+ num_rounds(&ctx->aes_key));
+
+ return __ghash_setkey(&ctx->ghash_key, key, sizeof(key));
+}
+
+static int gcm_setauthsize(struct crypto_aead *tfm, unsigned int authsize)
+{
+ switch (authsize) {
+ case 4:
+ case 8:
+ case 12 ... 16:
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static void gcm_update_mac(u64 dg[], const u8 *src, int count, u8 buf[],
+ int *buf_count, struct gcm_aes_ctx *ctx)
+{
+ if (*buf_count > 0) {
+ int buf_added = min(count, GHASH_BLOCK_SIZE - *buf_count);
+
+ memcpy(&buf[*buf_count], src, buf_added);
+
+ *buf_count += buf_added;
+ src += buf_added;
+ count -= buf_added;
+ }
+
+ if (count >= GHASH_BLOCK_SIZE || *buf_count == GHASH_BLOCK_SIZE) {
+ int blocks = count / GHASH_BLOCK_SIZE;
+
+ ghash_do_update(blocks, dg, src, &ctx->ghash_key,
+ *buf_count ? buf : NULL);
+
+ src += blocks * GHASH_BLOCK_SIZE;
+ count %= GHASH_BLOCK_SIZE;
+ *buf_count = 0;
+ }
+
+ if (count > 0) {
+ memcpy(buf, src, count);
+ *buf_count = count;
+ }
+}
+
+static void gcm_calculate_auth_mac(struct aead_request *req, u64 dg[])
+{
+ struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ struct gcm_aes_ctx *ctx = crypto_aead_ctx(aead);
+ u8 buf[GHASH_BLOCK_SIZE];
+ struct scatter_walk walk;
+ u32 len = req->assoclen;
+ int buf_count = 0;
+
+ scatterwalk_start(&walk, req->src);
+
+ do {
+ u32 n = scatterwalk_clamp(&walk, len);
+ u8 *p;
+
+ if (!n) {
+ scatterwalk_start(&walk, sg_next(walk.sg));
+ n = scatterwalk_clamp(&walk, len);
+ }
+ p = scatterwalk_map(&walk);
+
+ gcm_update_mac(dg, p, n, buf, &buf_count, ctx);
+ len -= n;
+
+ scatterwalk_unmap(p);
+ scatterwalk_advance(&walk, n);
+ scatterwalk_done(&walk, 0, len);
+ } while (len);
+
+ if (buf_count) {
+ memset(&buf[buf_count], 0, GHASH_BLOCK_SIZE - buf_count);
+ ghash_do_update(1, dg, buf, &ctx->ghash_key, NULL);
+ }
+}
+
+static void gcm_final(struct aead_request *req, struct gcm_aes_ctx *ctx,
+ u64 dg[], u8 tag[], int cryptlen)
+{
+ u8 mac[AES_BLOCK_SIZE];
+ u128 lengths;
+
+ lengths.a = cpu_to_be64(req->assoclen * 8);
+ lengths.b = cpu_to_be64(cryptlen * 8);
+
+ ghash_do_update(1, dg, (void *)&lengths, &ctx->ghash_key, NULL);
+
+ put_unaligned_be64(dg[1], mac);
+ put_unaligned_be64(dg[0], mac + 8);
+
+ crypto_xor(tag, mac, AES_BLOCK_SIZE);
+}
+
+static int gcm_encrypt(struct aead_request *req)
+{
+ struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ struct gcm_aes_ctx *ctx = crypto_aead_ctx(aead);
+ struct skcipher_walk walk;
+ u8 iv[AES_BLOCK_SIZE];
+ u8 ks[AES_BLOCK_SIZE];
+ u8 tag[AES_BLOCK_SIZE];
+ u64 dg[2] = {};
+ int err;
+
+ if (req->assoclen)
+ gcm_calculate_auth_mac(req, dg);
+
+ memcpy(iv, req->iv, GCM_IV_SIZE);
+ put_unaligned_be32(1, iv + GCM_IV_SIZE);
+
+ if (likely(may_use_simd())) {
+ kernel_neon_begin();
+
+ pmull_gcm_encrypt_block(tag, iv, ctx->aes_key.key_enc,
+ num_rounds(&ctx->aes_key));
+ put_unaligned_be32(2, iv + GCM_IV_SIZE);
+ pmull_gcm_encrypt_block(ks, iv, NULL,
+ num_rounds(&ctx->aes_key));
+ put_unaligned_be32(3, iv + GCM_IV_SIZE);
+
+ err = skcipher_walk_aead_encrypt(&walk, req, true);
+
+ while (walk.nbytes >= AES_BLOCK_SIZE) {
+ int blocks = walk.nbytes / AES_BLOCK_SIZE;
+
+ pmull_gcm_encrypt(blocks, dg, walk.dst.virt.addr,
+ walk.src.virt.addr, &ctx->ghash_key,
+ iv, num_rounds(&ctx->aes_key), ks);
+
+ err = skcipher_walk_done(&walk,
+ walk.nbytes % AES_BLOCK_SIZE);
+ }
+ kernel_neon_end();
+ } else {
+ __aes_arm64_encrypt(ctx->aes_key.key_enc, tag, iv,
+ num_rounds(&ctx->aes_key));
+ put_unaligned_be32(2, iv + GCM_IV_SIZE);
+
+ err = skcipher_walk_aead_encrypt(&walk, req, true);
+
+ while (walk.nbytes >= AES_BLOCK_SIZE) {
+ int blocks = walk.nbytes / AES_BLOCK_SIZE;
+ u8 *dst = walk.dst.virt.addr;
+ u8 *src = walk.src.virt.addr;
+
+ do {
+ __aes_arm64_encrypt(ctx->aes_key.key_enc,
+ ks, iv,
+ num_rounds(&ctx->aes_key));
+ crypto_xor_cpy(dst, src, ks, AES_BLOCK_SIZE);
+ crypto_inc(iv, AES_BLOCK_SIZE);
+
+ dst += AES_BLOCK_SIZE;
+ src += AES_BLOCK_SIZE;
+ } while (--blocks > 0);
+
+ ghash_do_update(walk.nbytes / AES_BLOCK_SIZE, dg,
+ walk.dst.virt.addr, &ctx->ghash_key,
+ NULL);
+
+ err = skcipher_walk_done(&walk,
+ walk.nbytes % AES_BLOCK_SIZE);
+ }
+ if (walk.nbytes)
+ __aes_arm64_encrypt(ctx->aes_key.key_enc, ks, iv,
+ num_rounds(&ctx->aes_key));
+ }
+
+ /* handle the tail */
+ if (walk.nbytes) {
+ u8 buf[GHASH_BLOCK_SIZE];
+
+ crypto_xor_cpy(walk.dst.virt.addr, walk.src.virt.addr, ks,
+ walk.nbytes);
+
+ memcpy(buf, walk.dst.virt.addr, walk.nbytes);
+ memset(buf + walk.nbytes, 0, GHASH_BLOCK_SIZE - walk.nbytes);
+ ghash_do_update(1, dg, buf, &ctx->ghash_key, NULL);
+
+ err = skcipher_walk_done(&walk, 0);
+ }
+
+ if (err)
+ return err;
+
+ gcm_final(req, ctx, dg, tag, req->cryptlen);
+
+ /* copy authtag to end of dst */
+ scatterwalk_map_and_copy(tag, req->dst, req->assoclen + req->cryptlen,
+ crypto_aead_authsize(aead), 1);
+
+ return 0;
+}
+
+static int gcm_decrypt(struct aead_request *req)
+{
+ struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ struct gcm_aes_ctx *ctx = crypto_aead_ctx(aead);
+ unsigned int authsize = crypto_aead_authsize(aead);
+ struct skcipher_walk walk;
+ u8 iv[AES_BLOCK_SIZE];
+ u8 tag[AES_BLOCK_SIZE];
+ u8 buf[GHASH_BLOCK_SIZE];
+ u64 dg[2] = {};
+ int err;
+
+ if (req->assoclen)
+ gcm_calculate_auth_mac(req, dg);
+
+ memcpy(iv, req->iv, GCM_IV_SIZE);
+ put_unaligned_be32(1, iv + GCM_IV_SIZE);
+
+ if (likely(may_use_simd())) {
+ kernel_neon_begin();
+
+ pmull_gcm_encrypt_block(tag, iv, ctx->aes_key.key_enc,
+ num_rounds(&ctx->aes_key));
+ put_unaligned_be32(2, iv + GCM_IV_SIZE);
+
+ err = skcipher_walk_aead_decrypt(&walk, req, true);
+
+ while (walk.nbytes >= AES_BLOCK_SIZE) {
+ int blocks = walk.nbytes / AES_BLOCK_SIZE;
+
+ pmull_gcm_decrypt(blocks, dg, walk.dst.virt.addr,
+ walk.src.virt.addr, &ctx->ghash_key,
+ iv, num_rounds(&ctx->aes_key));
+
+ err = skcipher_walk_done(&walk,
+ walk.nbytes % AES_BLOCK_SIZE);
+ }
+ if (walk.nbytes)
+ pmull_gcm_encrypt_block(iv, iv, NULL,
+ num_rounds(&ctx->aes_key));
+
+ kernel_neon_end();
+ } else {
+ __aes_arm64_encrypt(ctx->aes_key.key_enc, tag, iv,
+ num_rounds(&ctx->aes_key));
+ put_unaligned_be32(2, iv + GCM_IV_SIZE);
+
+ err = skcipher_walk_aead_decrypt(&walk, req, true);
+
+ while (walk.nbytes >= AES_BLOCK_SIZE) {
+ int blocks = walk.nbytes / AES_BLOCK_SIZE;
+ u8 *dst = walk.dst.virt.addr;
+ u8 *src = walk.src.virt.addr;
+
+ ghash_do_update(blocks, dg, walk.src.virt.addr,
+ &ctx->ghash_key, NULL);
+
+ do {
+ __aes_arm64_encrypt(ctx->aes_key.key_enc,
+ buf, iv,
+ num_rounds(&ctx->aes_key));
+ crypto_xor_cpy(dst, src, buf, AES_BLOCK_SIZE);
+ crypto_inc(iv, AES_BLOCK_SIZE);
+
+ dst += AES_BLOCK_SIZE;
+ src += AES_BLOCK_SIZE;
+ } while (--blocks > 0);
+
+ err = skcipher_walk_done(&walk,
+ walk.nbytes % AES_BLOCK_SIZE);
+ }
+ if (walk.nbytes)
+ __aes_arm64_encrypt(ctx->aes_key.key_enc, iv, iv,
+ num_rounds(&ctx->aes_key));
+ }
+
+ /* handle the tail */
+ if (walk.nbytes) {
+ memcpy(buf, walk.src.virt.addr, walk.nbytes);
+ memset(buf + walk.nbytes, 0, GHASH_BLOCK_SIZE - walk.nbytes);
+ ghash_do_update(1, dg, buf, &ctx->ghash_key, NULL);
+
+ crypto_xor_cpy(walk.dst.virt.addr, walk.src.virt.addr, iv,
+ walk.nbytes);
+
+ err = skcipher_walk_done(&walk, 0);
+ }
+
+ if (err)
+ return err;
+
+ gcm_final(req, ctx, dg, tag, req->cryptlen - authsize);
+
+ /* compare calculated auth tag with the stored one */
+ scatterwalk_map_and_copy(buf, req->src,
+ req->assoclen + req->cryptlen - authsize,
+ authsize, 0);
+
+ if (crypto_memneq(tag, buf, authsize))
+ return -EBADMSG;
+ return 0;
+}
+
+static struct aead_alg gcm_aes_alg = {
+ .ivsize = GCM_IV_SIZE,
+ .chunksize = AES_BLOCK_SIZE,
+ .maxauthsize = AES_BLOCK_SIZE,
+ .setkey = gcm_setkey,
+ .setauthsize = gcm_setauthsize,
+ .encrypt = gcm_encrypt,
+ .decrypt = gcm_decrypt,
+
+ .base.cra_name = "gcm(aes)",
+ .base.cra_driver_name = "gcm-aes-ce",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct gcm_aes_ctx),
+ .base.cra_module = THIS_MODULE,
};
static int __init ghash_ce_mod_init(void)
{
- return crypto_register_shash(&ghash_alg);
+ int ret;
+
+ if (!(elf_hwcap & HWCAP_ASIMD))
+ return -ENODEV;
+
+ if (elf_hwcap & HWCAP_PMULL)
+ pmull_ghash_update = pmull_ghash_update_p64;
+
+ else
+ pmull_ghash_update = pmull_ghash_update_p8;
+
+ ret = crypto_register_shash(&ghash_alg);
+ if (ret)
+ return ret;
+
+ if (elf_hwcap & HWCAP_PMULL) {
+ ret = crypto_register_aead(&gcm_aes_alg);
+ if (ret)
+ crypto_unregister_shash(&ghash_alg);
+ }
+ return ret;
}
static void __exit ghash_ce_mod_exit(void)
{
crypto_unregister_shash(&ghash_alg);
+ crypto_unregister_aead(&gcm_aes_alg);
}
-module_cpu_feature_match(PMULL, ghash_ce_mod_init);
+static const struct cpu_feature ghash_cpu_feature[] = {
+ { cpu_feature(PMULL) }, { }
+};
+MODULE_DEVICE_TABLE(cpu, ghash_cpu_feature);
+
+module_init(ghash_ce_mod_init);
module_exit(ghash_ce_mod_exit);
diff --git a/arch/arm64/crypto/sha1-ce-core.S b/arch/arm64/crypto/sha1-ce-core.S
index c98e7e849f06..8550408735a0 100644
--- a/arch/arm64/crypto/sha1-ce-core.S
+++ b/arch/arm64/crypto/sha1-ce-core.S
@@ -82,7 +82,8 @@ ENTRY(sha1_ce_transform)
ldr dgb, [x0, #16]
/* load sha1_ce_state::finalize */
- ldr w4, [x0, #:lo12:sha1_ce_offsetof_finalize]
+ ldr_l w4, sha1_ce_offsetof_finalize, x4
+ ldr w4, [x0, x4]
/* load input */
0: ld1 {v8.4s-v11.4s}, [x1], #64
@@ -132,7 +133,8 @@ CPU_LE( rev32 v11.16b, v11.16b )
* the padding is handled by the C code in that case.
*/
cbz x4, 3f
- ldr x4, [x0, #:lo12:sha1_ce_offsetof_count]
+ ldr_l w4, sha1_ce_offsetof_count, x4
+ ldr x4, [x0, x4]
movi v9.2d, #0
mov x8, #0x80000000
movi v10.2d, #0
diff --git a/arch/arm64/crypto/sha1-ce-glue.c b/arch/arm64/crypto/sha1-ce-glue.c
index aefda9868627..efbeb3e0dcfb 100644
--- a/arch/arm64/crypto/sha1-ce-glue.c
+++ b/arch/arm64/crypto/sha1-ce-glue.c
@@ -1,7 +1,7 @@
/*
* sha1-ce-glue.c - SHA-1 secure hash using ARMv8 Crypto Extensions
*
- * Copyright (C) 2014 Linaro Ltd <ard.biesheuvel@linaro.org>
+ * Copyright (C) 2014 - 2017 Linaro Ltd <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -9,6 +9,7 @@
*/
#include <asm/neon.h>
+#include <asm/simd.h>
#include <asm/unaligned.h>
#include <crypto/internal/hash.h>
#include <crypto/sha.h>
@@ -17,9 +18,6 @@
#include <linux/crypto.h>
#include <linux/module.h>
-#define ASM_EXPORT(sym, val) \
- asm(".globl " #sym "; .set " #sym ", %0" :: "I"(val));
-
MODULE_DESCRIPTION("SHA1 secure hash using ARMv8 Crypto Extensions");
MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
MODULE_LICENSE("GPL v2");
@@ -32,13 +30,19 @@ struct sha1_ce_state {
asmlinkage void sha1_ce_transform(struct sha1_ce_state *sst, u8 const *src,
int blocks);
+const u32 sha1_ce_offsetof_count = offsetof(struct sha1_ce_state, sst.count);
+const u32 sha1_ce_offsetof_finalize = offsetof(struct sha1_ce_state, finalize);
+
static int sha1_ce_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
struct sha1_ce_state *sctx = shash_desc_ctx(desc);
+ if (!may_use_simd())
+ return crypto_sha1_update(desc, data, len);
+
sctx->finalize = 0;
- kernel_neon_begin_partial(16);
+ kernel_neon_begin();
sha1_base_do_update(desc, data, len,
(sha1_block_fn *)sha1_ce_transform);
kernel_neon_end();
@@ -52,10 +56,8 @@ static int sha1_ce_finup(struct shash_desc *desc, const u8 *data,
struct sha1_ce_state *sctx = shash_desc_ctx(desc);
bool finalize = !sctx->sst.count && !(len % SHA1_BLOCK_SIZE);
- ASM_EXPORT(sha1_ce_offsetof_count,
- offsetof(struct sha1_ce_state, sst.count));
- ASM_EXPORT(sha1_ce_offsetof_finalize,
- offsetof(struct sha1_ce_state, finalize));
+ if (!may_use_simd())
+ return crypto_sha1_finup(desc, data, len, out);
/*
* Allow the asm code to perform the finalization if there is no
@@ -63,7 +65,7 @@ static int sha1_ce_finup(struct shash_desc *desc, const u8 *data,
*/
sctx->finalize = finalize;
- kernel_neon_begin_partial(16);
+ kernel_neon_begin();
sha1_base_do_update(desc, data, len,
(sha1_block_fn *)sha1_ce_transform);
if (!finalize)
@@ -76,8 +78,11 @@ static int sha1_ce_final(struct shash_desc *desc, u8 *out)
{
struct sha1_ce_state *sctx = shash_desc_ctx(desc);
+ if (!may_use_simd())
+ return crypto_sha1_finup(desc, NULL, 0, out);
+
sctx->finalize = 0;
- kernel_neon_begin_partial(16);
+ kernel_neon_begin();
sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_ce_transform);
kernel_neon_end();
return sha1_base_finish(desc, out);
diff --git a/arch/arm64/crypto/sha2-ce-core.S b/arch/arm64/crypto/sha2-ce-core.S
index 01cfee066837..679c6c002f4f 100644
--- a/arch/arm64/crypto/sha2-ce-core.S
+++ b/arch/arm64/crypto/sha2-ce-core.S
@@ -88,7 +88,8 @@ ENTRY(sha2_ce_transform)
ld1 {dgav.4s, dgbv.4s}, [x0]
/* load sha256_ce_state::finalize */
- ldr w4, [x0, #:lo12:sha256_ce_offsetof_finalize]
+ ldr_l w4, sha256_ce_offsetof_finalize, x4
+ ldr w4, [x0, x4]
/* load input */
0: ld1 {v16.4s-v19.4s}, [x1], #64
@@ -136,7 +137,8 @@ CPU_LE( rev32 v19.16b, v19.16b )
* the padding is handled by the C code in that case.
*/
cbz x4, 3f
- ldr x4, [x0, #:lo12:sha256_ce_offsetof_count]
+ ldr_l w4, sha256_ce_offsetof_count, x4
+ ldr x4, [x0, x4]
movi v17.2d, #0
mov x8, #0x80000000
movi v18.2d, #0
diff --git a/arch/arm64/crypto/sha2-ce-glue.c b/arch/arm64/crypto/sha2-ce-glue.c
index 7cd587564a41..fd1ff2b13dfa 100644
--- a/arch/arm64/crypto/sha2-ce-glue.c
+++ b/arch/arm64/crypto/sha2-ce-glue.c
@@ -1,7 +1,7 @@
/*
* sha2-ce-glue.c - SHA-224/SHA-256 using ARMv8 Crypto Extensions
*
- * Copyright (C) 2014 Linaro Ltd <ard.biesheuvel@linaro.org>
+ * Copyright (C) 2014 - 2017 Linaro Ltd <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -9,6 +9,7 @@
*/
#include <asm/neon.h>
+#include <asm/simd.h>
#include <asm/unaligned.h>
#include <crypto/internal/hash.h>
#include <crypto/sha.h>
@@ -17,9 +18,6 @@
#include <linux/crypto.h>
#include <linux/module.h>
-#define ASM_EXPORT(sym, val) \
- asm(".globl " #sym "; .set " #sym ", %0" :: "I"(val));
-
MODULE_DESCRIPTION("SHA-224/SHA-256 secure hash using ARMv8 Crypto Extensions");
MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
MODULE_LICENSE("GPL v2");
@@ -32,13 +30,24 @@ struct sha256_ce_state {
asmlinkage void sha2_ce_transform(struct sha256_ce_state *sst, u8 const *src,
int blocks);
+const u32 sha256_ce_offsetof_count = offsetof(struct sha256_ce_state,
+ sst.count);
+const u32 sha256_ce_offsetof_finalize = offsetof(struct sha256_ce_state,
+ finalize);
+
+asmlinkage void sha256_block_data_order(u32 *digest, u8 const *src, int blocks);
+
static int sha256_ce_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
struct sha256_ce_state *sctx = shash_desc_ctx(desc);
+ if (!may_use_simd())
+ return sha256_base_do_update(desc, data, len,
+ (sha256_block_fn *)sha256_block_data_order);
+
sctx->finalize = 0;
- kernel_neon_begin_partial(28);
+ kernel_neon_begin();
sha256_base_do_update(desc, data, len,
(sha256_block_fn *)sha2_ce_transform);
kernel_neon_end();
@@ -52,10 +61,14 @@ static int sha256_ce_finup(struct shash_desc *desc, const u8 *data,
struct sha256_ce_state *sctx = shash_desc_ctx(desc);
bool finalize = !sctx->sst.count && !(len % SHA256_BLOCK_SIZE);
- ASM_EXPORT(sha256_ce_offsetof_count,
- offsetof(struct sha256_ce_state, sst.count));
- ASM_EXPORT(sha256_ce_offsetof_finalize,
- offsetof(struct sha256_ce_state, finalize));
+ if (!may_use_simd()) {
+ if (len)
+ sha256_base_do_update(desc, data, len,
+ (sha256_block_fn *)sha256_block_data_order);
+ sha256_base_do_finalize(desc,
+ (sha256_block_fn *)sha256_block_data_order);
+ return sha256_base_finish(desc, out);
+ }
/*
* Allow the asm code to perform the finalization if there is no
@@ -63,7 +76,7 @@ static int sha256_ce_finup(struct shash_desc *desc, const u8 *data,
*/
sctx->finalize = finalize;
- kernel_neon_begin_partial(28);
+ kernel_neon_begin();
sha256_base_do_update(desc, data, len,
(sha256_block_fn *)sha2_ce_transform);
if (!finalize)
@@ -77,8 +90,14 @@ static int sha256_ce_final(struct shash_desc *desc, u8 *out)
{
struct sha256_ce_state *sctx = shash_desc_ctx(desc);
+ if (!may_use_simd()) {
+ sha256_base_do_finalize(desc,
+ (sha256_block_fn *)sha256_block_data_order);
+ return sha256_base_finish(desc, out);
+ }
+
sctx->finalize = 0;
- kernel_neon_begin_partial(28);
+ kernel_neon_begin();
sha256_base_do_finalize(desc, (sha256_block_fn *)sha2_ce_transform);
kernel_neon_end();
return sha256_base_finish(desc, out);
diff --git a/arch/arm64/crypto/sha256-glue.c b/arch/arm64/crypto/sha256-glue.c
index a2226f841960..b064d925fe2a 100644
--- a/arch/arm64/crypto/sha256-glue.c
+++ b/arch/arm64/crypto/sha256-glue.c
@@ -29,6 +29,7 @@ MODULE_ALIAS_CRYPTO("sha256");
asmlinkage void sha256_block_data_order(u32 *digest, const void *data,
unsigned int num_blks);
+EXPORT_SYMBOL(sha256_block_data_order);
asmlinkage void sha256_block_neon(u32 *digest, const void *data,
unsigned int num_blks);
diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild
index a7a97a608033..2326e39d5892 100644
--- a/arch/arm64/include/asm/Kbuild
+++ b/arch/arm64/include/asm/Kbuild
@@ -6,41 +6,23 @@ generic-y += dma.h
generic-y += dma-contiguous.h
generic-y += early_ioremap.h
generic-y += emergency-restart.h
-generic-y += errno.h
generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
generic-y += irq_regs.h
generic-y += kdebug.h
generic-y += kmap_types.h
-generic-y += kvm_para.h
generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
-generic-y += mman.h
-generic-y += msgbuf.h
generic-y += msi.h
-generic-y += poll.h
generic-y += preempt.h
-generic-y += resource.h
generic-y += rwsem.h
generic-y += segment.h
-generic-y += sembuf.h
generic-y += serial.h
generic-y += set_memory.h
-generic-y += shmbuf.h
-generic-y += simd.h
generic-y += sizes.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += swab.h
generic-y += switch_to.h
-generic-y += termbits.h
-generic-y += termios.h
generic-y += trace_clock.h
-generic-y += types.h
generic-y += unaligned.h
generic-y += user.h
generic-y += vga.h
diff --git a/arch/arm64/include/asm/arch_gicv3.h b/arch/arm64/include/asm/arch_gicv3.h
index 1a98bc8602a2..b7e3f74822da 100644
--- a/arch/arm64/include/asm/arch_gicv3.h
+++ b/arch/arm64/include/asm/arch_gicv3.h
@@ -89,7 +89,7 @@ static inline void gic_write_ctlr(u32 val)
static inline void gic_write_grpen1(u32 val)
{
- write_sysreg_s(val, SYS_ICC_GRPEN1_EL1);
+ write_sysreg_s(val, SYS_ICC_IGRPEN1_EL1);
isb();
}
@@ -116,6 +116,8 @@ static inline void gic_write_bpr1(u32 val)
#define gic_read_typer(c) readq_relaxed(c)
#define gic_write_irouter(v, c) writeq_relaxed(v, c)
+#define gic_read_lpir(c) readq_relaxed(c)
+#define gic_write_lpir(v, c) writeq_relaxed(v, c)
#define gic_flush_dcache_to_poc(a,l) __flush_dcache_area((a), (l))
@@ -133,5 +135,10 @@ static inline void gic_write_bpr1(u32 val)
#define gicr_write_pendbaser(v, c) writeq_relaxed(v, c)
#define gicr_read_pendbaser(c) readq_relaxed(c)
+#define gits_write_vpropbaser(v, c) writeq_relaxed(v, c)
+
+#define gits_write_vpendbaser(v, c) writeq_relaxed(v, c)
+#define gits_read_vpendbaser(c) readq_relaxed(c)
+
#endif /* __ASSEMBLY__ */
#endif /* __ASM_ARCH_GICV3_H */
diff --git a/arch/arm64/include/asm/arch_timer.h b/arch/arm64/include/asm/arch_timer.h
index 74d08e44a651..a652ce0a5cb2 100644
--- a/arch/arm64/include/asm/arch_timer.h
+++ b/arch/arm64/include/asm/arch_timer.h
@@ -65,13 +65,13 @@ DECLARE_PER_CPU(const struct arch_timer_erratum_workaround *,
u64 _val; \
if (needs_unstable_timer_counter_workaround()) { \
const struct arch_timer_erratum_workaround *wa; \
- preempt_disable(); \
+ preempt_disable_notrace(); \
wa = __this_cpu_read(timer_unstable_counter_workaround); \
if (wa && wa->read_##reg) \
_val = wa->read_##reg(); \
else \
_val = read_sysreg(reg); \
- preempt_enable(); \
+ preempt_enable_notrace(); \
} else { \
_val = read_sysreg(reg); \
} \
diff --git a/arch/arm64/include/asm/asm-bug.h b/arch/arm64/include/asm/asm-bug.h
new file mode 100644
index 000000000000..636e755bcdca
--- /dev/null
+++ b/arch/arm64/include/asm/asm-bug.h
@@ -0,0 +1,54 @@
+#ifndef __ASM_ASM_BUG_H
+/*
+ * Copyright (C) 2017 ARM Limited
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#define __ASM_ASM_BUG_H
+
+#include <asm/brk-imm.h>
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+#define _BUGVERBOSE_LOCATION(file, line) __BUGVERBOSE_LOCATION(file, line)
+#define __BUGVERBOSE_LOCATION(file, line) \
+ .pushsection .rodata.str,"aMS",@progbits,1; \
+ 2: .string file; \
+ .popsection; \
+ \
+ .long 2b - 0b; \
+ .short line;
+#else
+#define _BUGVERBOSE_LOCATION(file, line)
+#endif
+
+#ifdef CONFIG_GENERIC_BUG
+
+#define __BUG_ENTRY(flags) \
+ .pushsection __bug_table,"aw"; \
+ .align 2; \
+ 0: .long 1f - 0b; \
+_BUGVERBOSE_LOCATION(__FILE__, __LINE__) \
+ .short flags; \
+ .popsection; \
+ 1:
+#else
+#define __BUG_ENTRY(flags)
+#endif
+
+#define ASM_BUG_FLAGS(flags) \
+ __BUG_ENTRY(flags) \
+ brk BUG_BRK_IMM
+
+#define ASM_BUG() ASM_BUG_FLAGS(0)
+
+#endif /* __ASM_ASM_BUG_H */
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index 1b67c3782d00..d58a6253c6ab 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -230,12 +230,18 @@ lr .req x30 // link register
.endm
/*
- * @dst: Result of per_cpu(sym, smp_processor_id())
+ * @dst: Result of per_cpu(sym, smp_processor_id()), can be SP for
+ * non-module code
* @sym: The name of the per-cpu variable
* @tmp: scratch register
*/
.macro adr_this_cpu, dst, sym, tmp
+#ifndef MODULE
+ adrp \tmp, \sym
+ add \dst, \tmp, #:lo12:\sym
+#else
adr_l \dst, \sym
+#endif
mrs \tmp, tpidr_el1
add \dst, \dst, \tmp
.endm
@@ -353,6 +359,12 @@ alternative_if_not ARM64_WORKAROUND_CLEAN_CACHE
alternative_else
dc civac, \kaddr
alternative_endif
+ .elseif (\op == cvap)
+alternative_if ARM64_HAS_DCPOP
+ sys 3, c7, c12, 1, \kaddr // dc cvap
+alternative_else
+ dc cvac, \kaddr
+alternative_endif
.else
dc \op, \kaddr
.endif
@@ -403,6 +415,17 @@ alternative_endif
.size __pi_##x, . - x; \
ENDPROC(x)
+/*
+ * Annotate a function as being unsuitable for kprobes.
+ */
+#ifdef CONFIG_KPROBES
+#define NOKPROBE(x) \
+ .pushsection "_kprobe_blacklist", "aw"; \
+ .quad x; \
+ .popsection;
+#else
+#define NOKPROBE(x)
+#endif
/*
* Emit a 64-bit absolute little endian symbol reference in a way that
* ensures that it will be resolved at build time, even when building a
diff --git a/arch/arm64/include/asm/atomic_lse.h b/arch/arm64/include/asm/atomic_lse.h
index 99fa69c9c3cf..9ef0797380cb 100644
--- a/arch/arm64/include/asm/atomic_lse.h
+++ b/arch/arm64/include/asm/atomic_lse.h
@@ -435,7 +435,7 @@ static inline long atomic64_dec_if_positive(atomic64_t *v)
" sub x30, x30, %[ret]\n"
" cbnz x30, 1b\n"
"2:")
- : [ret] "+&r" (x0), [v] "+Q" (v->counter)
+ : [ret] "+r" (x0), [v] "+Q" (v->counter)
:
: __LL_SC_CLOBBERS, "cc", "memory");
diff --git a/arch/arm64/include/asm/bug.h b/arch/arm64/include/asm/bug.h
index 366448eb0fb7..d7dc43752705 100644
--- a/arch/arm64/include/asm/bug.h
+++ b/arch/arm64/include/asm/bug.h
@@ -18,41 +18,12 @@
#ifndef _ARCH_ARM64_ASM_BUG_H
#define _ARCH_ARM64_ASM_BUG_H
-#include <asm/brk-imm.h>
+#include <linux/stringify.h>
-#ifdef CONFIG_DEBUG_BUGVERBOSE
-#define _BUGVERBOSE_LOCATION(file, line) __BUGVERBOSE_LOCATION(file, line)
-#define __BUGVERBOSE_LOCATION(file, line) \
- ".pushsection .rodata.str,\"aMS\",@progbits,1\n" \
- "2: .string \"" file "\"\n\t" \
- ".popsection\n\t" \
- \
- ".long 2b - 0b\n\t" \
- ".short " #line "\n\t"
-#else
-#define _BUGVERBOSE_LOCATION(file, line)
-#endif
-
-#ifdef CONFIG_GENERIC_BUG
-
-#define __BUG_ENTRY(flags) \
- ".pushsection __bug_table,\"a\"\n\t" \
- ".align 2\n\t" \
- "0: .long 1f - 0b\n\t" \
-_BUGVERBOSE_LOCATION(__FILE__, __LINE__) \
- ".short " #flags "\n\t" \
- ".popsection\n" \
- "1: "
-#else
-#define __BUG_ENTRY(flags) ""
-#endif
+#include <asm/asm-bug.h>
#define __BUG_FLAGS(flags) \
- asm volatile ( \
- __BUG_ENTRY(flags) \
- "brk %[imm]" :: [imm] "i" (BUG_BRK_IMM) \
- );
-
+ asm volatile (__stringify(ASM_BUG_FLAGS(flags)));
#define BUG() do { \
__BUG_FLAGS(0); \
diff --git a/arch/arm64/include/asm/cacheflush.h b/arch/arm64/include/asm/cacheflush.h
index d74a284abdc2..76d1cc85d5b1 100644
--- a/arch/arm64/include/asm/cacheflush.h
+++ b/arch/arm64/include/asm/cacheflush.h
@@ -67,7 +67,9 @@
*/
extern void flush_icache_range(unsigned long start, unsigned long end);
extern void __flush_dcache_area(void *addr, size_t len);
+extern void __inval_dcache_area(void *addr, size_t len);
extern void __clean_dcache_area_poc(void *addr, size_t len);
+extern void __clean_dcache_area_pop(void *addr, size_t len);
extern void __clean_dcache_area_pou(void *addr, size_t len);
extern long __flush_cache_user_range(unsigned long start, unsigned long end);
extern void sync_icache_aliases(void *kaddr, unsigned long len);
@@ -150,6 +152,6 @@ static inline void flush_cache_vunmap(unsigned long start, unsigned long end)
{
}
-int set_memory_valid(unsigned long addr, unsigned long size, int enable);
+int set_memory_valid(unsigned long addr, int numpages, int enable);
#endif
diff --git a/arch/arm64/include/asm/checksum.h b/arch/arm64/include/asm/checksum.h
index 09f65339d66d..0b6f5a7d4027 100644
--- a/arch/arm64/include/asm/checksum.h
+++ b/arch/arm64/include/asm/checksum.h
@@ -42,7 +42,7 @@ static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
} while (--ihl);
sum += ((sum >> 32) | (sum << 32));
- return csum_fold(sum >> 32);
+ return csum_fold((__force u32)(sum >> 32));
}
#define ip_fast_csum ip_fast_csum
diff --git a/arch/arm64/include/asm/cpucaps.h b/arch/arm64/include/asm/cpucaps.h
index b3aab8a17868..8da621627d7c 100644
--- a/arch/arm64/include/asm/cpucaps.h
+++ b/arch/arm64/include/asm/cpucaps.h
@@ -38,7 +38,9 @@
#define ARM64_WORKAROUND_REPEAT_TLBI 17
#define ARM64_WORKAROUND_QCOM_FALKOR_E1003 18
#define ARM64_WORKAROUND_858921 19
+#define ARM64_WORKAROUND_CAVIUM_30115 20
+#define ARM64_HAS_DCPOP 21
-#define ARM64_NCAPS 20
+#define ARM64_NCAPS 22
#endif /* __ASM_CPUCAPS_H */
diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index 0984d1b3a8f2..235e77d98261 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -86,6 +86,7 @@
#define CAVIUM_CPU_PART_THUNDERX 0x0A1
#define CAVIUM_CPU_PART_THUNDERX_81XX 0x0A2
+#define CAVIUM_CPU_PART_THUNDERX_83XX 0x0A3
#define BRCM_CPU_PART_VULCAN 0x516
@@ -96,6 +97,7 @@
#define MIDR_CORTEX_A73 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A73)
#define MIDR_THUNDERX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX)
#define MIDR_THUNDERX_81XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_81XX)
+#define MIDR_THUNDERX_83XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_83XX)
#define MIDR_QCOM_FALKOR_V1 MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_FALKOR_V1)
#ifndef __ASSEMBLY__
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 5392dbeffa45..0df756b24863 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -24,7 +24,6 @@
#include <xen/xen.h>
#include <asm/xen/hypervisor.h>
-#define DMA_ERROR_CODE (~(dma_addr_t)0)
extern const struct dma_map_ops dummy_dma_ops;
static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
@@ -48,8 +47,6 @@ void arch_teardown_dma_ops(struct device *dev);
/* do not use this function in a driver */
static inline bool is_device_dma_coherent(struct device *dev)
{
- if (!dev)
- return false;
return dev->archdata.dma_coherent;
}
diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h
index 8f3043aba873..b93904b16fc2 100644
--- a/arch/arm64/include/asm/efi.h
+++ b/arch/arm64/include/asm/efi.h
@@ -3,7 +3,9 @@
#include <asm/boot.h>
#include <asm/cpufeature.h>
+#include <asm/fpsimd.h>
#include <asm/io.h>
+#include <asm/memory.h>
#include <asm/mmu_context.h>
#include <asm/neon.h>
#include <asm/ptrace.h>
@@ -20,8 +22,8 @@ int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md);
#define arch_efi_call_virt_setup() \
({ \
- kernel_neon_begin(); \
efi_virtmap_load(); \
+ __efi_fpsimd_begin(); \
})
#define arch_efi_call_virt(p, f, args...) \
@@ -33,8 +35,8 @@ int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md);
#define arch_efi_call_virt_teardown() \
({ \
+ __efi_fpsimd_end(); \
efi_virtmap_unload(); \
- kernel_neon_end(); \
})
#define ARCH_EFI_IRQ_FLAGS_MASK (PSR_D_BIT | PSR_A_BIT | PSR_I_BIT | PSR_F_BIT)
@@ -48,6 +50,13 @@ int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md);
*/
#define EFI_FDT_ALIGN SZ_2M /* used by allocate_new_fdt_and_exit_boot() */
+/*
+ * In some configurations (e.g. VMAP_STACK && 64K pages), stacks built into the
+ * kernel need greater alignment than we require the segments to be padded to.
+ */
+#define EFI_KIMG_ALIGN \
+ (SEGMENT_ALIGN > THREAD_ALIGN ? SEGMENT_ALIGN : THREAD_ALIGN)
+
/* on arm64, the FDT may be located anywhere in system RAM */
static inline unsigned long efi_get_max_fdt_addr(unsigned long dram_base)
{
@@ -81,6 +90,9 @@ static inline unsigned long efi_get_max_initrd_addr(unsigned long dram_base,
#define alloc_screen_info(x...) &screen_info
#define free_screen_info(x...)
+/* redeclare as 'hidden' so the compiler will generate relative references */
+extern struct screen_info screen_info __attribute__((__visibility__("hidden")));
+
static inline void efifb_setup_from_dmi(struct screen_info *si, const char *opt)
{
}
diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
index 5d1700425efe..33be513ef24c 100644
--- a/arch/arm64/include/asm/elf.h
+++ b/arch/arm64/include/asm/elf.h
@@ -113,12 +113,11 @@
#define ELF_EXEC_PAGESIZE PAGE_SIZE
/*
- * This is the location that an ET_DYN program is loaded if exec'ed. Typical
- * use of this is to invoke "./ld.so someprog" to test out a new version of
- * the loader. We need to make sure that it is out of the way of the program
- * that it will "exec", and that there is sufficient room for the brk.
+ * This is the base location for PIE (ET_DYN with INTERP) loads. On
+ * 64-bit, this is above 4GB to leave the entire 32-bit address
+ * space open for things that want to use the area for 32-bit pointers.
*/
-#define ELF_ET_DYN_BASE (2 * TASK_SIZE_64 / 3)
+#define ELF_ET_DYN_BASE (2 * TASK_SIZE_64 / 3)
#ifndef __ASSEMBLY__
@@ -140,8 +139,8 @@ typedef struct user_fpsimd_state elf_fpregset_t;
#define SET_PERSONALITY(ex) \
({ \
- clear_bit(TIF_32BIT, &current->mm->context.flags); \
clear_thread_flag(TIF_32BIT); \
+ current->personality &= ~READ_IMPLIES_EXEC; \
})
/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
@@ -173,7 +172,8 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm,
#ifdef CONFIG_COMPAT
-#define COMPAT_ELF_ET_DYN_BASE (2 * TASK_SIZE_32 / 3)
+/* PIE load location for compat arm. Must match ARM ELF_ET_DYN_BASE. */
+#define COMPAT_ELF_ET_DYN_BASE 0x000400000UL
/* AArch32 registers. */
#define COMPAT_ELF_NGREG 18
@@ -187,9 +187,13 @@ typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
((x)->e_flags & EF_ARM_EABI_MASK))
#define compat_start_thread compat_start_thread
+/*
+ * Unlike the native SET_PERSONALITY macro, the compat version inherits
+ * READ_IMPLIES_EXEC across a fork() since this is the behaviour on
+ * arch/arm/.
+ */
#define COMPAT_SET_PERSONALITY(ex) \
({ \
- set_bit(TIF_32BIT, &current->mm->context.flags); \
set_thread_flag(TIF_32BIT); \
})
#define COMPAT_ARCH_DLINFO
diff --git a/arch/arm64/include/asm/esr.h b/arch/arm64/include/asm/esr.h
index 85997c0e5443..66ed8b6b9976 100644
--- a/arch/arm64/include/asm/esr.h
+++ b/arch/arm64/include/asm/esr.h
@@ -19,6 +19,7 @@
#define __ASM_ESR_H
#include <asm/memory.h>
+#include <asm/sysreg.h>
#define ESR_ELx_EC_UNKNOWN (0x00)
#define ESR_ELx_EC_WFx (0x01)
@@ -76,15 +77,23 @@
#define ESR_ELx_EC_MASK (UL(0x3F) << ESR_ELx_EC_SHIFT)
#define ESR_ELx_EC(esr) (((esr) & ESR_ELx_EC_MASK) >> ESR_ELx_EC_SHIFT)
-#define ESR_ELx_IL (UL(1) << 25)
+#define ESR_ELx_IL_SHIFT (25)
+#define ESR_ELx_IL (UL(1) << ESR_ELx_IL_SHIFT)
#define ESR_ELx_ISS_MASK (ESR_ELx_IL - 1)
/* ISS field definitions shared by different classes */
-#define ESR_ELx_WNR (UL(1) << 6)
+#define ESR_ELx_WNR_SHIFT (6)
+#define ESR_ELx_WNR (UL(1) << ESR_ELx_WNR_SHIFT)
/* Shared ISS field definitions for Data/Instruction aborts */
-#define ESR_ELx_EA (UL(1) << 9)
-#define ESR_ELx_S1PTW (UL(1) << 7)
+#define ESR_ELx_SET_SHIFT (11)
+#define ESR_ELx_SET_MASK (UL(3) << ESR_ELx_SET_SHIFT)
+#define ESR_ELx_FnV_SHIFT (10)
+#define ESR_ELx_FnV (UL(1) << ESR_ELx_FnV_SHIFT)
+#define ESR_ELx_EA_SHIFT (9)
+#define ESR_ELx_EA (UL(1) << ESR_ELx_EA_SHIFT)
+#define ESR_ELx_S1PTW_SHIFT (7)
+#define ESR_ELx_S1PTW (UL(1) << ESR_ELx_S1PTW_SHIFT)
/* Shared ISS fault status code(IFSC/DFSC) for Data/Instruction aborts */
#define ESR_ELx_FSC (0x3F)
@@ -95,15 +104,20 @@
#define ESR_ELx_FSC_PERM (0x0C)
/* ISS field definitions for Data Aborts */
-#define ESR_ELx_ISV (UL(1) << 24)
+#define ESR_ELx_ISV_SHIFT (24)
+#define ESR_ELx_ISV (UL(1) << ESR_ELx_ISV_SHIFT)
#define ESR_ELx_SAS_SHIFT (22)
#define ESR_ELx_SAS (UL(3) << ESR_ELx_SAS_SHIFT)
-#define ESR_ELx_SSE (UL(1) << 21)
+#define ESR_ELx_SSE_SHIFT (21)
+#define ESR_ELx_SSE (UL(1) << ESR_ELx_SSE_SHIFT)
#define ESR_ELx_SRT_SHIFT (16)
#define ESR_ELx_SRT_MASK (UL(0x1F) << ESR_ELx_SRT_SHIFT)
-#define ESR_ELx_SF (UL(1) << 15)
-#define ESR_ELx_AR (UL(1) << 14)
-#define ESR_ELx_CM (UL(1) << 8)
+#define ESR_ELx_SF_SHIFT (15)
+#define ESR_ELx_SF (UL(1) << ESR_ELx_SF_SHIFT)
+#define ESR_ELx_AR_SHIFT (14)
+#define ESR_ELx_AR (UL(1) << ESR_ELx_AR_SHIFT)
+#define ESR_ELx_CM_SHIFT (8)
+#define ESR_ELx_CM (UL(1) << ESR_ELx_CM_SHIFT)
/* ISS field definitions for exceptions taken in to Hyp */
#define ESR_ELx_CV (UL(1) << 24)
@@ -155,9 +169,10 @@
/*
* User space cache operations have the following sysreg encoding
* in System instructions.
- * op0=1, op1=3, op2=1, crn=7, crm={ 5, 10, 11, 14 }, WRITE (L=0)
+ * op0=1, op1=3, op2=1, crn=7, crm={ 5, 10, 11, 12, 14 }, WRITE (L=0)
*/
#define ESR_ELx_SYS64_ISS_CRM_DC_CIVAC 14
+#define ESR_ELx_SYS64_ISS_CRM_DC_CVAP 12
#define ESR_ELx_SYS64_ISS_CRM_DC_CVAU 11
#define ESR_ELx_SYS64_ISS_CRM_DC_CVAC 10
#define ESR_ELx_SYS64_ISS_CRM_IC_IVAU 5
@@ -181,9 +196,39 @@
#define ESR_ELx_SYS64_ISS_SYS_CNTFRQ (ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 0, 14, 0) | \
ESR_ELx_SYS64_ISS_DIR_READ)
+#define esr_sys64_to_sysreg(e) \
+ sys_reg((((e) & ESR_ELx_SYS64_ISS_OP0_MASK) >> \
+ ESR_ELx_SYS64_ISS_OP0_SHIFT), \
+ (((e) & ESR_ELx_SYS64_ISS_OP1_MASK) >> \
+ ESR_ELx_SYS64_ISS_OP1_SHIFT), \
+ (((e) & ESR_ELx_SYS64_ISS_CRN_MASK) >> \
+ ESR_ELx_SYS64_ISS_CRN_SHIFT), \
+ (((e) & ESR_ELx_SYS64_ISS_CRM_MASK) >> \
+ ESR_ELx_SYS64_ISS_CRM_SHIFT), \
+ (((e) & ESR_ELx_SYS64_ISS_OP2_MASK) >> \
+ ESR_ELx_SYS64_ISS_OP2_SHIFT))
+
+#define esr_cp15_to_sysreg(e) \
+ sys_reg(3, \
+ (((e) & ESR_ELx_SYS64_ISS_OP1_MASK) >> \
+ ESR_ELx_SYS64_ISS_OP1_SHIFT), \
+ (((e) & ESR_ELx_SYS64_ISS_CRN_MASK) >> \
+ ESR_ELx_SYS64_ISS_CRN_SHIFT), \
+ (((e) & ESR_ELx_SYS64_ISS_CRM_MASK) >> \
+ ESR_ELx_SYS64_ISS_CRM_SHIFT), \
+ (((e) & ESR_ELx_SYS64_ISS_OP2_MASK) >> \
+ ESR_ELx_SYS64_ISS_OP2_SHIFT))
+
#ifndef __ASSEMBLY__
#include <asm/types.h>
+static inline bool esr_is_data_abort(u32 esr)
+{
+ const u32 ec = ESR_ELx_EC(esr);
+
+ return ec == ESR_ELx_EC_DABT_LOW || ec == ESR_ELx_EC_DABT_CUR;
+}
+
const char *esr_get_class_string(u32 esr);
#endif /* __ASSEMBLY */
diff --git a/arch/arm64/include/asm/fpsimd.h b/arch/arm64/include/asm/fpsimd.h
index 50f559f574fe..410c48163c6a 100644
--- a/arch/arm64/include/asm/fpsimd.h
+++ b/arch/arm64/include/asm/fpsimd.h
@@ -41,16 +41,6 @@ struct fpsimd_state {
unsigned int cpu;
};
-/*
- * Struct for stacking the bottom 'n' FP/SIMD registers.
- */
-struct fpsimd_partial_state {
- u32 fpsr;
- u32 fpcr;
- u32 num_regs;
- __uint128_t vregs[32];
-};
-
#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
/* Masks for extracting the FPSR and FPCR from the FPSCR */
@@ -77,9 +67,9 @@ extern void fpsimd_update_current_state(struct fpsimd_state *state);
extern void fpsimd_flush_task_state(struct task_struct *target);
-extern void fpsimd_save_partial_state(struct fpsimd_partial_state *state,
- u32 num_regs);
-extern void fpsimd_load_partial_state(struct fpsimd_partial_state *state);
+/* For use by EFI runtime services calls only */
+extern void __efi_fpsimd_begin(void);
+extern void __efi_fpsimd_end(void);
#endif
diff --git a/arch/arm64/include/asm/fpsimdmacros.h b/arch/arm64/include/asm/fpsimdmacros.h
index a2daf1293028..0f5fdd388b0d 100644
--- a/arch/arm64/include/asm/fpsimdmacros.h
+++ b/arch/arm64/include/asm/fpsimdmacros.h
@@ -75,59 +75,3 @@
ldr w\tmpnr, [\state, #16 * 2 + 4]
fpsimd_restore_fpcr x\tmpnr, \state
.endm
-
-.macro fpsimd_save_partial state, numnr, tmpnr1, tmpnr2
- mrs x\tmpnr1, fpsr
- str w\numnr, [\state, #8]
- mrs x\tmpnr2, fpcr
- stp w\tmpnr1, w\tmpnr2, [\state]
- adr x\tmpnr1, 0f
- add \state, \state, x\numnr, lsl #4
- sub x\tmpnr1, x\tmpnr1, x\numnr, lsl #1
- br x\tmpnr1
- stp q30, q31, [\state, #-16 * 30 - 16]
- stp q28, q29, [\state, #-16 * 28 - 16]
- stp q26, q27, [\state, #-16 * 26 - 16]
- stp q24, q25, [\state, #-16 * 24 - 16]
- stp q22, q23, [\state, #-16 * 22 - 16]
- stp q20, q21, [\state, #-16 * 20 - 16]
- stp q18, q19, [\state, #-16 * 18 - 16]
- stp q16, q17, [\state, #-16 * 16 - 16]
- stp q14, q15, [\state, #-16 * 14 - 16]
- stp q12, q13, [\state, #-16 * 12 - 16]
- stp q10, q11, [\state, #-16 * 10 - 16]
- stp q8, q9, [\state, #-16 * 8 - 16]
- stp q6, q7, [\state, #-16 * 6 - 16]
- stp q4, q5, [\state, #-16 * 4 - 16]
- stp q2, q3, [\state, #-16 * 2 - 16]
- stp q0, q1, [\state, #-16 * 0 - 16]
-0:
-.endm
-
-.macro fpsimd_restore_partial state, tmpnr1, tmpnr2
- ldp w\tmpnr1, w\tmpnr2, [\state]
- msr fpsr, x\tmpnr1
- fpsimd_restore_fpcr x\tmpnr2, x\tmpnr1
- adr x\tmpnr1, 0f
- ldr w\tmpnr2, [\state, #8]
- add \state, \state, x\tmpnr2, lsl #4
- sub x\tmpnr1, x\tmpnr1, x\tmpnr2, lsl #1
- br x\tmpnr1
- ldp q30, q31, [\state, #-16 * 30 - 16]
- ldp q28, q29, [\state, #-16 * 28 - 16]
- ldp q26, q27, [\state, #-16 * 26 - 16]
- ldp q24, q25, [\state, #-16 * 24 - 16]
- ldp q22, q23, [\state, #-16 * 22 - 16]
- ldp q20, q21, [\state, #-16 * 20 - 16]
- ldp q18, q19, [\state, #-16 * 18 - 16]
- ldp q16, q17, [\state, #-16 * 16 - 16]
- ldp q14, q15, [\state, #-16 * 14 - 16]
- ldp q12, q13, [\state, #-16 * 12 - 16]
- ldp q10, q11, [\state, #-16 * 10 - 16]
- ldp q8, q9, [\state, #-16 * 8 - 16]
- ldp q6, q7, [\state, #-16 * 6 - 16]
- ldp q4, q5, [\state, #-16 * 4 - 16]
- ldp q2, q3, [\state, #-16 * 2 - 16]
- ldp q0, q1, [\state, #-16 * 0 - 16]
-0:
-.endm
diff --git a/arch/arm64/include/asm/futex.h b/arch/arm64/include/asm/futex.h
index 85c4a8981d47..5bb2fd4674e7 100644
--- a/arch/arm64/include/asm/futex.h
+++ b/arch/arm64/include/asm/futex.h
@@ -48,20 +48,10 @@ do { \
} while (0)
static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
int oldval = 0, ret, tmp;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
- return -EFAULT;
-
pagefault_disable();
switch (op) {
@@ -91,17 +81,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
pagefault_enable();
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
- case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
- case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
- case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
- case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
- case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
- default: ret = -ENOSYS;
- }
- }
+ if (!ret)
+ *oval = oldval;
+
return ret;
}
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index bbc1e35aa601..1dca41bea16a 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -18,7 +18,6 @@
#ifndef __ASM_HUGETLB_H
#define __ASM_HUGETLB_H
-#include <asm-generic/hugetlb.h>
#include <asm/page.h>
static inline pte_t huge_ptep_get(pte_t *ptep)
@@ -82,5 +81,17 @@ extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
unsigned long addr, pte_t *ptep);
extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep);
+extern void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep, unsigned long sz);
+#define huge_pte_clear huge_pte_clear
+extern void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep, pte_t pte, unsigned long sz);
+#define set_huge_swap_pte_at set_huge_swap_pte_at
+
+#include <asm-generic/hugetlb.h>
+
+#ifdef CONFIG_ARCH_HAS_GIGANTIC_PAGE
+static inline bool gigantic_page_supported(void) { return true; }
+#endif
#endif /* __ASM_HUGETLB_H */
diff --git a/arch/arm64/include/asm/insn.h b/arch/arm64/include/asm/insn.h
index 29cb2ca756f6..4214c38d016b 100644
--- a/arch/arm64/include/asm/insn.h
+++ b/arch/arm64/include/asm/insn.h
@@ -433,7 +433,6 @@ u32 aarch64_set_branch_offset(u32 insn, s32 offset);
bool aarch64_insn_hotpatch_safe(u32 old_insn, u32 new_insn);
int aarch64_insn_patch_text_nosync(void *addr, u32 insn);
-int aarch64_insn_patch_text_sync(void *addrs[], u32 insns[], int cnt);
int aarch64_insn_patch_text(void *addrs[], u32 insns[], int cnt);
s32 aarch64_insn_adrp_get_offset(u32 insn);
diff --git a/arch/arm64/include/asm/irq.h b/arch/arm64/include/asm/irq.h
index b77197d941fc..5e6f77239064 100644
--- a/arch/arm64/include/asm/irq.h
+++ b/arch/arm64/include/asm/irq.h
@@ -1,45 +1,12 @@
#ifndef __ASM_IRQ_H
#define __ASM_IRQ_H
-#define IRQ_STACK_SIZE THREAD_SIZE
-#define IRQ_STACK_START_SP THREAD_START_SP
-
#ifndef __ASSEMBLER__
-#include <linux/percpu.h>
-
#include <asm-generic/irq.h>
-#include <asm/thread_info.h>
struct pt_regs;
-DECLARE_PER_CPU(unsigned long [IRQ_STACK_SIZE/sizeof(long)], irq_stack);
-
-/*
- * The highest address on the stack, and the first to be used. Used to
- * find the dummy-stack frame put down by el?_irq() in entry.S, which
- * is structured as follows:
- *
- * ------------
- * | | <- irq_stack_ptr
- * top ------------
- * | x19 | <- irq_stack_ptr - 0x08
- * ------------
- * | x29 | <- irq_stack_ptr - 0x10
- * ------------
- *
- * where x19 holds a copy of the task stack pointer where the struct pt_regs
- * from kernel_entry can be found.
- *
- */
-#define IRQ_STACK_PTR(cpu) ((unsigned long)per_cpu(irq_stack, cpu) + IRQ_STACK_START_SP)
-
-/*
- * The offset from irq_stack_ptr where entry.S will store the original
- * stack pointer. Used by unwind_frame() and dump_backtrace().
- */
-#define IRQ_STACK_TO_TASK_STACK(ptr) (*((unsigned long *)((ptr) - 0x08)))
-
extern void set_handle_irq(void (*handle_irq)(struct pt_regs *));
static inline int nr_legacy_irqs(void)
@@ -47,14 +14,5 @@ static inline int nr_legacy_irqs(void)
return 0;
}
-static inline bool on_irq_stack(unsigned long sp, int cpu)
-{
- /* variable names the same as kernel/stacktrace.c */
- unsigned long low = (unsigned long)per_cpu(irq_stack, cpu);
- unsigned long high = low + IRQ_STACK_START_SP;
-
- return (low <= sp && sp <= high);
-}
-
#endif /* !__ASSEMBLER__ */
#endif
diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index 6e99978e83bd..61d694c2eae5 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -204,6 +204,16 @@
#define FSC_FAULT ESR_ELx_FSC_FAULT
#define FSC_ACCESS ESR_ELx_FSC_ACCESS
#define FSC_PERM ESR_ELx_FSC_PERM
+#define FSC_SEA ESR_ELx_FSC_EXTABT
+#define FSC_SEA_TTW0 (0x14)
+#define FSC_SEA_TTW1 (0x15)
+#define FSC_SEA_TTW2 (0x16)
+#define FSC_SEA_TTW3 (0x17)
+#define FSC_SECC (0x18)
+#define FSC_SECC_TTW0 (0x1c)
+#define FSC_SECC_TTW1 (0x1d)
+#define FSC_SECC_TTW2 (0x1e)
+#define FSC_SECC_TTW3 (0x1f)
/* Hyp Prefetch Fault Address Register (HPFAR/HDFAR) */
#define HPFAR_MASK (~UL(0xf))
diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index fe39e6841326..e5df3fce0008 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -188,11 +188,6 @@ static inline int kvm_vcpu_dabt_get_rd(const struct kvm_vcpu *vcpu)
return (kvm_vcpu_get_hsr(vcpu) & ESR_ELx_SRT_MASK) >> ESR_ELx_SRT_SHIFT;
}
-static inline bool kvm_vcpu_dabt_isextabt(const struct kvm_vcpu *vcpu)
-{
- return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_EA);
-}
-
static inline bool kvm_vcpu_dabt_iss1tw(const struct kvm_vcpu *vcpu)
{
return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_S1PTW);
@@ -240,6 +235,25 @@ static inline u8 kvm_vcpu_trap_get_fault_type(const struct kvm_vcpu *vcpu)
return kvm_vcpu_get_hsr(vcpu) & ESR_ELx_FSC_TYPE;
}
+static inline bool kvm_vcpu_dabt_isextabt(const struct kvm_vcpu *vcpu)
+{
+ switch (kvm_vcpu_trap_get_fault_type(vcpu)) {
+ case FSC_SEA:
+ case FSC_SEA_TTW0:
+ case FSC_SEA_TTW1:
+ case FSC_SEA_TTW2:
+ case FSC_SEA_TTW3:
+ case FSC_SECC:
+ case FSC_SECC_TTW0:
+ case FSC_SECC_TTW1:
+ case FSC_SECC_TTW2:
+ case FSC_SECC_TTW3:
+ return true;
+ default:
+ return false;
+ }
+}
+
static inline int kvm_vcpu_sys_get_rt(struct kvm_vcpu *vcpu)
{
u32 esr = kvm_vcpu_get_hsr(vcpu);
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 1f252a95bc02..e923b58606e2 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -42,7 +42,9 @@
#define KVM_VCPU_MAX_FEATURES 4
-#define KVM_REQ_VCPU_EXIT (8 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
+#define KVM_REQ_SLEEP \
+ KVM_ARCH_REQ_FLAGS(0, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
+#define KVM_REQ_IRQ_PENDING KVM_ARCH_REQ(1)
int __attribute_const__ kvm_target_cpu(void);
int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
@@ -324,18 +326,10 @@ void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
-/* We do not have shadow page tables, hence the empty hooks */
-static inline void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm,
- unsigned long address)
-{
-}
-
struct kvm_vcpu *kvm_arm_get_running_vcpu(void);
struct kvm_vcpu * __percpu *kvm_get_running_vcpus(void);
void kvm_arm_halt_guest(struct kvm *kvm);
void kvm_arm_resume_guest(struct kvm *kvm);
-void kvm_arm_halt_vcpu(struct kvm_vcpu *vcpu);
-void kvm_arm_resume_vcpu(struct kvm_vcpu *vcpu);
u64 __kvm_call_hyp(void *hypfn, ...);
#define kvm_call_hyp(f, ...) __kvm_call_hyp(kvm_ksym_ref(f), ##__VA_ARGS__)
diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index b18e852d27e8..4572a9b560fa 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -127,6 +127,7 @@ int __vgic_v2_perform_cpuif_access(struct kvm_vcpu *vcpu);
void __vgic_v3_save_state(struct kvm_vcpu *vcpu);
void __vgic_v3_restore_state(struct kvm_vcpu *vcpu);
+int __vgic_v3_perform_cpuif_access(struct kvm_vcpu *vcpu);
void __timer_save_state(struct kvm_vcpu *vcpu);
void __timer_restore_state(struct kvm_vcpu *vcpu);
diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index a89cc22abadc..672c8684d5c2 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -175,18 +175,15 @@ static inline pmd_t kvm_s2pmd_mkwrite(pmd_t pmd)
static inline void kvm_set_s2pte_readonly(pte_t *pte)
{
- pteval_t pteval;
- unsigned long tmp;
-
- asm volatile("// kvm_set_s2pte_readonly\n"
- " prfm pstl1strm, %2\n"
- "1: ldxr %0, %2\n"
- " and %0, %0, %3 // clear PTE_S2_RDWR\n"
- " orr %0, %0, %4 // set PTE_S2_RDONLY\n"
- " stxr %w1, %0, %2\n"
- " cbnz %w1, 1b\n"
- : "=&r" (pteval), "=&r" (tmp), "+Q" (pte_val(*pte))
- : "L" (~PTE_S2_RDWR), "L" (PTE_S2_RDONLY));
+ pteval_t old_pteval, pteval;
+
+ pteval = READ_ONCE(pte_val(*pte));
+ do {
+ old_pteval = pteval;
+ pteval &= ~PTE_S2_RDWR;
+ pteval |= PTE_S2_RDONLY;
+ pteval = cmpxchg_relaxed(&pte_val(*pte), old_pteval, pteval);
+ } while (pteval != old_pteval);
}
static inline bool kvm_s2pte_readonly(pte_t *pte)
diff --git a/arch/arm64/include/asm/linkage.h b/arch/arm64/include/asm/linkage.h
index 636c1bced7d4..1b266292f0be 100644
--- a/arch/arm64/include/asm/linkage.h
+++ b/arch/arm64/include/asm/linkage.h
@@ -1,7 +1,7 @@
#ifndef __ASM_LINKAGE_H
#define __ASM_LINKAGE_H
-#define __ALIGN .align 4
-#define __ALIGN_STR ".align 4"
+#define __ALIGN .align 2
+#define __ALIGN_STR ".align 2"
#endif
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index 32f82723338a..f7c4d2146aed 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -25,6 +25,7 @@
#include <linux/const.h>
#include <linux/types.h>
#include <asm/bug.h>
+#include <asm/page-def.h>
#include <asm/sizes.h>
/*
@@ -64,8 +65,10 @@
* TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area.
*/
#define VA_BITS (CONFIG_ARM64_VA_BITS)
-#define VA_START (UL(0xffffffffffffffff) << VA_BITS)
-#define PAGE_OFFSET (UL(0xffffffffffffffff) << (VA_BITS - 1))
+#define VA_START (UL(0xffffffffffffffff) - \
+ (UL(1) << VA_BITS) + 1)
+#define PAGE_OFFSET (UL(0xffffffffffffffff) - \
+ (UL(1) << (VA_BITS - 1)) + 1)
#define KIMAGE_VADDR (MODULES_END)
#define MODULES_END (MODULES_VADDR + MODULES_VSIZE)
#define MODULES_VADDR (VA_START + KASAN_SHADOW_SIZE)
@@ -92,13 +95,68 @@
#define KERNEL_END _end
/*
- * The size of the KASAN shadow region. This should be 1/8th of the
- * size of the entire kernel virtual address space.
+ * KASAN requires 1/8th of the kernel virtual address space for the shadow
+ * region. KASAN can bloat the stack significantly, so double the (minimum)
+ * stack size when KASAN is in use.
*/
#ifdef CONFIG_KASAN
#define KASAN_SHADOW_SIZE (UL(1) << (VA_BITS - 3))
+#define KASAN_THREAD_SHIFT 1
#else
#define KASAN_SHADOW_SIZE (0)
+#define KASAN_THREAD_SHIFT 0
+#endif
+
+#define MIN_THREAD_SHIFT (14 + KASAN_THREAD_SHIFT)
+
+/*
+ * VMAP'd stacks are allocated at page granularity, so we must ensure that such
+ * stacks are a multiple of page size.
+ */
+#if defined(CONFIG_VMAP_STACK) && (MIN_THREAD_SHIFT < PAGE_SHIFT)
+#define THREAD_SHIFT PAGE_SHIFT
+#else
+#define THREAD_SHIFT MIN_THREAD_SHIFT
+#endif
+
+#if THREAD_SHIFT >= PAGE_SHIFT
+#define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT)
+#endif
+
+#define THREAD_SIZE (UL(1) << THREAD_SHIFT)
+
+/*
+ * By aligning VMAP'd stacks to 2 * THREAD_SIZE, we can detect overflow by
+ * checking sp & (1 << THREAD_SHIFT), which we can do cheaply in the entry
+ * assembly.
+ */
+#ifdef CONFIG_VMAP_STACK
+#define THREAD_ALIGN (2 * THREAD_SIZE)
+#else
+#define THREAD_ALIGN THREAD_SIZE
+#endif
+
+#define IRQ_STACK_SIZE THREAD_SIZE
+
+#define OVERFLOW_STACK_SIZE SZ_4K
+
+/*
+ * Alignment of kernel segments (e.g. .text, .data).
+ */
+#if defined(CONFIG_DEBUG_ALIGN_RODATA)
+/*
+ * 4 KB granule: 1 level 2 entry
+ * 16 KB granule: 128 level 3 entries, with contiguous bit
+ * 64 KB granule: 32 level 3 entries, with contiguous bit
+ */
+#define SEGMENT_ALIGN SZ_2M
+#else
+/*
+ * 4 KB granule: 16 level 3 entries, with contiguous bit
+ * 16 KB granule: 4 level 3 entries, without contiguous bit
+ * 64 KB granule: 1 level 3 entry
+ */
+#define SEGMENT_ALIGN SZ_64K
#endif
/*
diff --git a/arch/arm64/include/asm/mmu.h b/arch/arm64/include/asm/mmu.h
index 5468c834b072..0d34bf0a89c7 100644
--- a/arch/arm64/include/asm/mmu.h
+++ b/arch/arm64/include/asm/mmu.h
@@ -16,6 +16,8 @@
#ifndef __ASM_MMU_H
#define __ASM_MMU_H
+#define MMCF_AARCH32 0x1 /* mm context flag for AArch32 executables */
+
typedef struct {
atomic64_t id;
void *vdso;
diff --git a/arch/arm64/include/asm/module.h b/arch/arm64/include/asm/module.h
index d57693f5d4ec..19bd97671bb8 100644
--- a/arch/arm64/include/asm/module.h
+++ b/arch/arm64/include/asm/module.h
@@ -30,6 +30,9 @@ struct mod_plt_sec {
struct mod_arch_specific {
struct mod_plt_sec core;
struct mod_plt_sec init;
+
+ /* for CONFIG_DYNAMIC_FTRACE */
+ void *ftrace_trampoline;
};
#endif
diff --git a/arch/arm64/include/asm/neon.h b/arch/arm64/include/asm/neon.h
index ad4cdc966c0f..f922eaf780f9 100644
--- a/arch/arm64/include/asm/neon.h
+++ b/arch/arm64/include/asm/neon.h
@@ -8,12 +8,22 @@
* published by the Free Software Foundation.
*/
+#ifndef __ASM_NEON_H
+#define __ASM_NEON_H
+
#include <linux/types.h>
#include <asm/fpsimd.h>
#define cpu_has_neon() system_supports_fpsimd()
-#define kernel_neon_begin() kernel_neon_begin_partial(32)
-
-void kernel_neon_begin_partial(u32 num_regs);
+void kernel_neon_begin(void);
void kernel_neon_end(void);
+
+/*
+ * Temporary macro to allow the crypto code to compile. Note that the
+ * semantics of kernel_neon_begin_partial() are now different from the
+ * original as it does not allow being called in an interrupt context.
+ */
+#define kernel_neon_begin_partial(num_regs) kernel_neon_begin()
+
+#endif /* ! __ASM_NEON_H */
diff --git a/arch/arm64/include/asm/numa.h b/arch/arm64/include/asm/numa.h
index bf466d1876e3..ef7b23863a7c 100644
--- a/arch/arm64/include/asm/numa.h
+++ b/arch/arm64/include/asm/numa.h
@@ -7,9 +7,6 @@
#define NR_NODE_MEMBLKS (MAX_NUMNODES * 2)
-/* currently, arm64 implements flat NUMA topology */
-#define parent_node(node) (node)
-
int __node_distance(int from, int to);
#define node_distance(a, b) __node_distance(a, b)
diff --git a/arch/arm64/include/asm/page-def.h b/arch/arm64/include/asm/page-def.h
new file mode 100644
index 000000000000..01591a29dc2e
--- /dev/null
+++ b/arch/arm64/include/asm/page-def.h
@@ -0,0 +1,34 @@
+/*
+ * Based on arch/arm/include/asm/page.h
+ *
+ * Copyright (C) 1995-2003 Russell King
+ * Copyright (C) 2017 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef __ASM_PAGE_DEF_H
+#define __ASM_PAGE_DEF_H
+
+#include <linux/const.h>
+
+/* PAGE_SHIFT determines the page size */
+/* CONT_SHIFT determines the number of pages which can be tracked together */
+#define PAGE_SHIFT CONFIG_ARM64_PAGE_SHIFT
+#define CONT_SHIFT CONFIG_ARM64_CONT_SHIFT
+#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
+#define PAGE_MASK (~(PAGE_SIZE-1))
+
+#define CONT_SIZE (_AC(1, UL) << (CONT_SHIFT + PAGE_SHIFT))
+#define CONT_MASK (~(CONT_SIZE-1))
+
+#endif /* __ASM_PAGE_DEF_H */
diff --git a/arch/arm64/include/asm/page.h b/arch/arm64/include/asm/page.h
index 8472c6def5ef..60d02c81a3a2 100644
--- a/arch/arm64/include/asm/page.h
+++ b/arch/arm64/include/asm/page.h
@@ -19,17 +19,7 @@
#ifndef __ASM_PAGE_H
#define __ASM_PAGE_H
-#include <linux/const.h>
-
-/* PAGE_SHIFT determines the page size */
-/* CONT_SHIFT determines the number of pages which can be tracked together */
-#define PAGE_SHIFT CONFIG_ARM64_PAGE_SHIFT
-#define CONT_SHIFT CONFIG_ARM64_CONT_SHIFT
-#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
-#define PAGE_MASK (~(PAGE_SIZE-1))
-
-#define CONT_SIZE (_AC(1, UL) << (CONT_SHIFT + PAGE_SHIFT))
-#define CONT_MASK (~(CONT_SIZE-1))
+#include <asm/page-def.h>
#ifndef __ASSEMBLY__
diff --git a/arch/arm64/include/asm/pgtable-prot.h b/arch/arm64/include/asm/pgtable-prot.h
index 2142c7726e76..0a5635fb0ef9 100644
--- a/arch/arm64/include/asm/pgtable-prot.h
+++ b/arch/arm64/include/asm/pgtable-prot.h
@@ -63,23 +63,21 @@
#define PAGE_S2 __pgprot(PROT_DEFAULT | PTE_S2_MEMATTR(MT_S2_NORMAL) | PTE_S2_RDONLY)
#define PAGE_S2_DEVICE __pgprot(PROT_DEFAULT | PTE_S2_MEMATTR(MT_S2_DEVICE_nGnRE) | PTE_S2_RDONLY | PTE_UXN)
-#define PAGE_NONE __pgprot(((_PAGE_DEFAULT) & ~PTE_VALID) | PTE_PROT_NONE | PTE_PXN | PTE_UXN)
+#define PAGE_NONE __pgprot(((_PAGE_DEFAULT) & ~PTE_VALID) | PTE_PROT_NONE | PTE_RDONLY | PTE_PXN | PTE_UXN)
#define PAGE_SHARED __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_UXN | PTE_WRITE)
#define PAGE_SHARED_EXEC __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_WRITE)
-#define PAGE_COPY __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_UXN)
-#define PAGE_COPY_EXEC __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN)
-#define PAGE_READONLY __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_UXN)
-#define PAGE_READONLY_EXEC __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN)
-#define PAGE_EXECONLY __pgprot(_PAGE_DEFAULT | PTE_NG | PTE_PXN)
+#define PAGE_READONLY __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_RDONLY | PTE_NG | PTE_PXN | PTE_UXN)
+#define PAGE_READONLY_EXEC __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_RDONLY | PTE_NG | PTE_PXN)
+#define PAGE_EXECONLY __pgprot(_PAGE_DEFAULT | PTE_RDONLY | PTE_NG | PTE_PXN)
#define __P000 PAGE_NONE
#define __P001 PAGE_READONLY
-#define __P010 PAGE_COPY
-#define __P011 PAGE_COPY
+#define __P010 PAGE_READONLY
+#define __P011 PAGE_READONLY
#define __P100 PAGE_EXECONLY
#define __P101 PAGE_READONLY_EXEC
-#define __P110 PAGE_COPY_EXEC
-#define __P111 PAGE_COPY_EXEC
+#define __P110 PAGE_READONLY_EXEC
+#define __P111 PAGE_READONLY_EXEC
#define __S000 PAGE_NONE
#define __S001 PAGE_READONLY
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index c213fdbd056c..b46e54c2399b 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -39,6 +39,7 @@
#ifndef __ASSEMBLY__
+#include <asm/cmpxchg.h>
#include <asm/fixmap.h>
#include <linux/mmdebug.h>
@@ -84,11 +85,7 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
(__boundary - 1 < (end) - 1) ? __boundary : (end); \
})
-#ifdef CONFIG_ARM64_HW_AFDBM
#define pte_hw_dirty(pte) (pte_write(pte) && !(pte_val(pte) & PTE_RDONLY))
-#else
-#define pte_hw_dirty(pte) (0)
-#endif
#define pte_sw_dirty(pte) (!!(pte_val(pte) & PTE_DIRTY))
#define pte_dirty(pte) (pte_sw_dirty(pte) || pte_hw_dirty(pte))
@@ -124,12 +121,16 @@ static inline pte_t set_pte_bit(pte_t pte, pgprot_t prot)
static inline pte_t pte_wrprotect(pte_t pte)
{
- return clear_pte_bit(pte, __pgprot(PTE_WRITE));
+ pte = clear_pte_bit(pte, __pgprot(PTE_WRITE));
+ pte = set_pte_bit(pte, __pgprot(PTE_RDONLY));
+ return pte;
}
static inline pte_t pte_mkwrite(pte_t pte)
{
- return set_pte_bit(pte, __pgprot(PTE_WRITE));
+ pte = set_pte_bit(pte, __pgprot(PTE_WRITE));
+ pte = clear_pte_bit(pte, __pgprot(PTE_RDONLY));
+ return pte;
}
static inline pte_t pte_mkclean(pte_t pte)
@@ -168,11 +169,6 @@ static inline pte_t pte_mknoncont(pte_t pte)
return clear_pte_bit(pte, __pgprot(PTE_CONT));
}
-static inline pte_t pte_clear_rdonly(pte_t pte)
-{
- return clear_pte_bit(pte, __pgprot(PTE_RDONLY));
-}
-
static inline pte_t pte_mkpresent(pte_t pte)
{
return set_pte_bit(pte, __pgprot(PTE_VALID));
@@ -220,22 +216,15 @@ extern void __sync_icache_dcache(pte_t pteval, unsigned long addr);
static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte)
{
- if (pte_present(pte)) {
- if (pte_sw_dirty(pte) && pte_write(pte))
- pte_val(pte) &= ~PTE_RDONLY;
- else
- pte_val(pte) |= PTE_RDONLY;
- if (pte_user_exec(pte) && !pte_special(pte))
- __sync_icache_dcache(pte, addr);
- }
+ if (pte_present(pte) && pte_user_exec(pte) && !pte_special(pte))
+ __sync_icache_dcache(pte, addr);
/*
* If the existing pte is valid, check for potential race with
* hardware updates of the pte (ptep_set_access_flags safely changes
* valid ptes without going through an invalid entry).
*/
- if (IS_ENABLED(CONFIG_ARM64_HW_AFDBM) &&
- pte_valid(*ptep) && pte_valid(pte)) {
+ if (pte_valid(*ptep) && pte_valid(pte)) {
VM_WARN_ONCE(!pte_young(pte),
"%s: racy access flag clearing: 0x%016llx -> 0x%016llx",
__func__, pte_val(*ptep), pte_val(pte));
@@ -412,7 +401,7 @@ static inline phys_addr_t pmd_page_paddr(pmd_t pmd)
/* Find an entry in the third-level page table. */
#define pte_index(addr) (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
-#define pte_offset_phys(dir,addr) (pmd_page_paddr(*(dir)) + pte_index(addr) * sizeof(pte_t))
+#define pte_offset_phys(dir,addr) (pmd_page_paddr(READ_ONCE(*(dir))) + pte_index(addr) * sizeof(pte_t))
#define pte_offset_kernel(dir,addr) ((pte_t *)__va(pte_offset_phys((dir), (addr))))
#define pte_offset_map(dir,addr) pte_offset_kernel((dir), (addr))
@@ -441,7 +430,7 @@ static inline phys_addr_t pmd_page_paddr(pmd_t pmd)
#define pud_none(pud) (!pud_val(pud))
#define pud_bad(pud) (!(pud_val(pud) & PUD_TABLE_BIT))
-#define pud_present(pud) (pud_val(pud))
+#define pud_present(pud) pte_present(pud_pte(pud))
static inline void set_pud(pud_t *pudp, pud_t pud)
{
@@ -571,7 +560,6 @@ static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot)
return pte_pmd(pte_modify(pmd_pte(pmd), newprot));
}
-#ifdef CONFIG_ARM64_HW_AFDBM
#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
extern int ptep_set_access_flags(struct vm_area_struct *vma,
unsigned long address, pte_t *ptep,
@@ -593,20 +581,17 @@ static inline int pmdp_set_access_flags(struct vm_area_struct *vma,
#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
static inline int __ptep_test_and_clear_young(pte_t *ptep)
{
- pteval_t pteval;
- unsigned int tmp, res;
+ pte_t old_pte, pte;
- asm volatile("// __ptep_test_and_clear_young\n"
- " prfm pstl1strm, %2\n"
- "1: ldxr %0, %2\n"
- " ubfx %w3, %w0, %5, #1 // extract PTE_AF (young)\n"
- " and %0, %0, %4 // clear PTE_AF\n"
- " stxr %w1, %0, %2\n"
- " cbnz %w1, 1b\n"
- : "=&r" (pteval), "=&r" (tmp), "+Q" (pte_val(*ptep)), "=&r" (res)
- : "L" (~PTE_AF), "I" (ilog2(PTE_AF)));
+ pte = READ_ONCE(*ptep);
+ do {
+ old_pte = pte;
+ pte = pte_mkold(pte);
+ pte_val(pte) = cmpxchg_relaxed(&pte_val(*ptep),
+ pte_val(old_pte), pte_val(pte));
+ } while (pte_val(pte) != pte_val(old_pte));
- return res;
+ return pte_young(pte);
}
static inline int ptep_test_and_clear_young(struct vm_area_struct *vma,
@@ -630,17 +615,7 @@ static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,
static inline pte_t ptep_get_and_clear(struct mm_struct *mm,
unsigned long address, pte_t *ptep)
{
- pteval_t old_pteval;
- unsigned int tmp;
-
- asm volatile("// ptep_get_and_clear\n"
- " prfm pstl1strm, %2\n"
- "1: ldxr %0, %2\n"
- " stxr %w1, xzr, %2\n"
- " cbnz %w1, 1b\n"
- : "=&r" (old_pteval), "=&r" (tmp), "+Q" (pte_val(*ptep)));
-
- return __pte(old_pteval);
+ return __pte(xchg_relaxed(&pte_val(*ptep), 0));
}
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
@@ -653,27 +628,32 @@ static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
/*
- * ptep_set_wrprotect - mark read-only while trasferring potential hardware
- * dirty status (PTE_DBM && !PTE_RDONLY) to the software PTE_DIRTY bit.
+ * ptep_set_wrprotect - mark read-only while preserving the hardware update of
+ * the Access Flag.
*/
#define __HAVE_ARCH_PTEP_SET_WRPROTECT
static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long address, pte_t *ptep)
{
- pteval_t pteval;
- unsigned long tmp;
+ pte_t old_pte, pte;
- asm volatile("// ptep_set_wrprotect\n"
- " prfm pstl1strm, %2\n"
- "1: ldxr %0, %2\n"
- " tst %0, %4 // check for hw dirty (!PTE_RDONLY)\n"
- " csel %1, %3, xzr, eq // set PTE_DIRTY|PTE_RDONLY if dirty\n"
- " orr %0, %0, %1 // if !dirty, PTE_RDONLY is already set\n"
- " and %0, %0, %5 // clear PTE_WRITE/PTE_DBM\n"
- " stxr %w1, %0, %2\n"
- " cbnz %w1, 1b\n"
- : "=&r" (pteval), "=&r" (tmp), "+Q" (pte_val(*ptep))
- : "r" (PTE_DIRTY|PTE_RDONLY), "L" (PTE_RDONLY), "L" (~PTE_WRITE)
- : "cc");
+ /*
+ * ptep_set_wrprotect() is only called on CoW mappings which are
+ * private (!VM_SHARED) with the pte either read-only (!PTE_WRITE &&
+ * PTE_RDONLY) or writable and software-dirty (PTE_WRITE &&
+ * !PTE_RDONLY && PTE_DIRTY); see is_cow_mapping() and
+ * protection_map[]. There is no race with the hardware update of the
+ * dirty state: clearing of PTE_RDONLY when PTE_WRITE (a.k.a. PTE_DBM)
+ * is set.
+ */
+ VM_WARN_ONCE(pte_write(*ptep) && !pte_dirty(*ptep),
+ "%s: potential race with hardware DBM", __func__);
+ pte = READ_ONCE(*ptep);
+ do {
+ old_pte = pte;
+ pte = pte_wrprotect(pte);
+ pte_val(pte) = cmpxchg_relaxed(&pte_val(*ptep),
+ pte_val(old_pte), pte_val(pte));
+ } while (pte_val(pte) != pte_val(old_pte));
}
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
@@ -684,7 +664,6 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm,
ptep_set_wrprotect(mm, address, (pte_t *)pmdp);
}
#endif
-#endif /* CONFIG_ARM64_HW_AFDBM */
extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
extern pgd_t idmap_pg_dir[PTRS_PER_PGD];
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
index 9428b93fefb2..29adab8138c3 100644
--- a/arch/arm64/include/asm/processor.h
+++ b/arch/arm64/include/asm/processor.h
@@ -104,12 +104,15 @@ struct thread_struct {
#define task_user_tls(t) (&(t)->thread.tp_value)
#endif
+/* Sync TPIDR_EL0 back to thread_struct for current */
+void tls_preserve_current_state(void);
+
#define INIT_THREAD { }
static inline void start_thread_common(struct pt_regs *regs, unsigned long pc)
{
memset(regs, 0, sizeof(*regs));
- regs->syscallno = ~0UL;
+ forget_syscall(regs);
regs->pc = pc;
}
@@ -156,7 +159,7 @@ extern struct task_struct *cpu_switch_to(struct task_struct *prev,
struct task_struct *next);
#define task_pt_regs(p) \
- ((struct pt_regs *)(THREAD_START_SP + task_stack_page(p)) - 1)
+ ((struct pt_regs *)(THREAD_SIZE + task_stack_page(p)) - 1)
#define KSTK_EIP(tsk) ((unsigned long)task_pt_regs(tsk)->pc)
#define KSTK_ESP(tsk) user_stack_pointer(task_pt_regs(tsk))
diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h
index 11403fdd0a50..6069d66e0bc2 100644
--- a/arch/arm64/include/asm/ptrace.h
+++ b/arch/arm64/include/asm/ptrace.h
@@ -72,8 +72,19 @@
#define COMPAT_PT_TEXT_ADDR 0x10000
#define COMPAT_PT_DATA_ADDR 0x10004
#define COMPAT_PT_TEXT_END_ADDR 0x10008
+
+/*
+ * If pt_regs.syscallno == NO_SYSCALL, then the thread is not executing
+ * a syscall -- i.e., its most recent entry into the kernel from
+ * userspace was not via SVC, or otherwise a tracer cancelled the syscall.
+ *
+ * This must have the value -1, for ABI compatibility with ptrace etc.
+ */
+#define NO_SYSCALL (-1)
+
#ifndef __ASSEMBLY__
#include <linux/bug.h>
+#include <linux/types.h>
/* sizeof(struct user) for AArch32 */
#define COMPAT_USER_SZ 296
@@ -116,11 +127,29 @@ struct pt_regs {
};
};
u64 orig_x0;
- u64 syscallno;
+#ifdef __AARCH64EB__
+ u32 unused2;
+ s32 syscallno;
+#else
+ s32 syscallno;
+ u32 unused2;
+#endif
+
u64 orig_addr_limit;
u64 unused; // maintain 16 byte alignment
+ u64 stackframe[2];
};
+static inline bool in_syscall(struct pt_regs const *regs)
+{
+ return regs->syscallno != NO_SYSCALL;
+}
+
+static inline void forget_syscall(struct pt_regs *regs)
+{
+ regs->syscallno = NO_SYSCALL;
+}
+
#define MAX_REG_OFFSET offsetof(struct pt_regs, pstate)
#define arch_has_single_step() (1)
diff --git a/arch/arm64/include/asm/signal32.h b/arch/arm64/include/asm/signal32.h
index eeaa97559bab..81abea0b7650 100644
--- a/arch/arm64/include/asm/signal32.h
+++ b/arch/arm64/include/asm/signal32.h
@@ -22,8 +22,6 @@
#define AARCH32_KERN_SIGRET_CODE_OFFSET 0x500
-extern const compat_ulong_t aarch32_sigret_code[6];
-
int compat_setup_frame(int usig, struct ksignal *ksig, sigset_t *set,
struct pt_regs *regs);
int compat_setup_rt_frame(int usig, struct ksignal *ksig, sigset_t *set,
diff --git a/arch/arm64/include/asm/simd.h b/arch/arm64/include/asm/simd.h
new file mode 100644
index 000000000000..fa8b3fe932e6
--- /dev/null
+++ b/arch/arm64/include/asm/simd.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2017 Linaro Ltd. <ard.biesheuvel@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#ifndef __ASM_SIMD_H
+#define __ASM_SIMD_H
+
+#include <linux/compiler.h>
+#include <linux/irqflags.h>
+#include <linux/percpu.h>
+#include <linux/preempt.h>
+#include <linux/types.h>
+
+#ifdef CONFIG_KERNEL_MODE_NEON
+
+DECLARE_PER_CPU(bool, kernel_neon_busy);
+
+/*
+ * may_use_simd - whether it is allowable at this time to issue SIMD
+ * instructions or access the SIMD register file
+ *
+ * Callers must not assume that the result remains true beyond the next
+ * preempt_enable() or return from softirq context.
+ */
+static __must_check inline bool may_use_simd(void)
+{
+ /*
+ * The raw_cpu_read() is racy if called with preemption enabled.
+ * This is not a bug: kernel_neon_busy is only set when
+ * preemption is disabled, so we cannot migrate to another CPU
+ * while it is set, nor can we migrate to a CPU where it is set.
+ * So, if we find it clear on some CPU then we're guaranteed to
+ * find it clear on any CPU we could migrate to.
+ *
+ * If we are in between kernel_neon_begin()...kernel_neon_end(),
+ * the flag will be set, but preemption is also disabled, so we
+ * can't migrate to another CPU and spuriously see it become
+ * false.
+ */
+ return !in_irq() && !irqs_disabled() && !in_nmi() &&
+ !raw_cpu_read(kernel_neon_busy);
+}
+
+#else /* ! CONFIG_KERNEL_MODE_NEON */
+
+static __must_check inline bool may_use_simd(void) {
+ return false;
+}
+
+#endif /* ! CONFIG_KERNEL_MODE_NEON */
+
+#endif
diff --git a/arch/arm64/include/asm/smp.h b/arch/arm64/include/asm/smp.h
index 55f08c5acfad..f82b447bd34f 100644
--- a/arch/arm64/include/asm/smp.h
+++ b/arch/arm64/include/asm/smp.h
@@ -148,7 +148,7 @@ static inline void cpu_panic_kernel(void)
*/
bool cpus_are_stuck_in_kernel(void);
-extern void smp_send_crash_stop(void);
+extern void crash_smp_send_stop(void);
extern bool smp_crash_stop_failed(void);
#endif /* ifndef __ASSEMBLY__ */
diff --git a/arch/arm64/include/asm/spinlock.h b/arch/arm64/include/asm/spinlock.h
index cae331d553f8..95ad7102b63c 100644
--- a/arch/arm64/include/asm/spinlock.h
+++ b/arch/arm64/include/asm/spinlock.h
@@ -26,58 +26,6 @@
* The memory barriers are implicit with the load-acquire and store-release
* instructions.
*/
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- unsigned int tmp;
- arch_spinlock_t lockval;
- u32 owner;
-
- /*
- * Ensure prior spin_lock operations to other locks have completed
- * on this CPU before we test whether "lock" is locked.
- */
- smp_mb();
- owner = READ_ONCE(lock->owner) << 16;
-
- asm volatile(
-" sevl\n"
-"1: wfe\n"
-"2: ldaxr %w0, %2\n"
- /* Is the lock free? */
-" eor %w1, %w0, %w0, ror #16\n"
-" cbz %w1, 3f\n"
- /* Lock taken -- has there been a subsequent unlock->lock transition? */
-" eor %w1, %w3, %w0, lsl #16\n"
-" cbz %w1, 1b\n"
- /*
- * The owner has been updated, so there was an unlock->lock
- * transition that we missed. That means we can rely on the
- * store-release of the unlock operation paired with the
- * load-acquire of the lock operation to publish any of our
- * previous stores to the new lock owner and therefore don't
- * need to bother with the writeback below.
- */
-" b 4f\n"
-"3:\n"
- /*
- * Serialise against any concurrent lockers by writing back the
- * unlocked lock value
- */
- ARM64_LSE_ATOMIC_INSN(
- /* LL/SC */
-" stxr %w1, %w0, %2\n"
- __nops(2),
- /* LSE atomics */
-" mov %w1, %w0\n"
-" cas %w0, %w0, %2\n"
-" eor %w1, %w1, %w0\n")
- /* Somebody else wrote to the lock, GOTO 10 and reload the value */
-" cbnz %w1, 2b\n"
-"4:"
- : "=&r" (lockval), "=&r" (tmp), "+Q" (*lock)
- : "r" (owner)
- : "memory");
-}
#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
@@ -176,7 +124,11 @@ static inline int arch_spin_value_unlocked(arch_spinlock_t lock)
static inline int arch_spin_is_locked(arch_spinlock_t *lock)
{
- smp_mb(); /* See arch_spin_unlock_wait */
+ /*
+ * Ensure prior spin_lock operations to other locks have completed
+ * on this CPU before we test whether "lock" is locked.
+ */
+ smp_mb(); /* ^^^ */
return !arch_spin_value_unlocked(READ_ONCE(*lock));
}
@@ -358,14 +310,7 @@ static inline int arch_read_trylock(arch_rwlock_t *rw)
#define arch_read_relax(lock) cpu_relax()
#define arch_write_relax(lock) cpu_relax()
-/*
- * Accesses appearing in program order before a spin_lock() operation
- * can be reordered with accesses inside the critical section, by virtue
- * of arch_spin_lock being constructed using acquire semantics.
- *
- * In cases where this is problematic (e.g. try_to_wake_up), an
- * smp_mb__before_spinlock() can restore the required ordering.
- */
-#define smp_mb__before_spinlock() smp_mb()
+/* See include/linux/spinlock.h */
+#define smp_mb__after_spinlock() smp_mb()
#endif /* __ASM_SPINLOCK_H */
diff --git a/arch/arm64/include/asm/stackprotector.h b/arch/arm64/include/asm/stackprotector.h
index fe5e287dc56b..b86a0865ddf1 100644
--- a/arch/arm64/include/asm/stackprotector.h
+++ b/arch/arm64/include/asm/stackprotector.h
@@ -30,6 +30,7 @@ static __always_inline void boot_init_stack_canary(void)
/* Try to get a semi random initial value. */
get_random_bytes(&canary, sizeof(canary));
canary ^= LINUX_VERSION_CODE;
+ canary &= CANARY_MASK;
current->stack_canary = canary;
__stack_chk_guard = current->stack_canary;
diff --git a/arch/arm64/include/asm/stacktrace.h b/arch/arm64/include/asm/stacktrace.h
index 801a16dbbdf6..6ad30776e984 100644
--- a/arch/arm64/include/asm/stacktrace.h
+++ b/arch/arm64/include/asm/stacktrace.h
@@ -16,11 +16,15 @@
#ifndef __ASM_STACKTRACE_H
#define __ASM_STACKTRACE_H
-struct task_struct;
+#include <linux/percpu.h>
+#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
+
+#include <asm/memory.h>
+#include <asm/ptrace.h>
struct stackframe {
unsigned long fp;
- unsigned long sp;
unsigned long pc;
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
unsigned int graph;
@@ -30,5 +34,59 @@ struct stackframe {
extern int unwind_frame(struct task_struct *tsk, struct stackframe *frame);
extern void walk_stackframe(struct task_struct *tsk, struct stackframe *frame,
int (*fn)(struct stackframe *, void *), void *data);
+extern void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk);
+
+DECLARE_PER_CPU(unsigned long *, irq_stack_ptr);
+
+static inline bool on_irq_stack(unsigned long sp)
+{
+ unsigned long low = (unsigned long)raw_cpu_read(irq_stack_ptr);
+ unsigned long high = low + IRQ_STACK_SIZE;
+
+ if (!low)
+ return false;
+
+ return (low <= sp && sp < high);
+}
+
+static inline bool on_task_stack(struct task_struct *tsk, unsigned long sp)
+{
+ unsigned long low = (unsigned long)task_stack_page(tsk);
+ unsigned long high = low + THREAD_SIZE;
+
+ return (low <= sp && sp < high);
+}
+
+#ifdef CONFIG_VMAP_STACK
+DECLARE_PER_CPU(unsigned long [OVERFLOW_STACK_SIZE/sizeof(long)], overflow_stack);
+
+static inline bool on_overflow_stack(unsigned long sp)
+{
+ unsigned long low = (unsigned long)raw_cpu_ptr(overflow_stack);
+ unsigned long high = low + OVERFLOW_STACK_SIZE;
+
+ return (low <= sp && sp < high);
+}
+#else
+static inline bool on_overflow_stack(unsigned long sp) { return false; }
+#endif
+
+/*
+ * We can only safely access per-cpu stacks from current in a non-preemptible
+ * context.
+ */
+static inline bool on_accessible_stack(struct task_struct *tsk, unsigned long sp)
+{
+ if (on_task_stack(tsk, sp))
+ return true;
+ if (tsk != current || preemptible())
+ return false;
+ if (on_irq_stack(sp))
+ return true;
+ if (on_overflow_stack(sp))
+ return true;
+
+ return false;
+}
#endif /* __ASM_STACKTRACE_H */
diff --git a/arch/arm64/include/asm/string.h b/arch/arm64/include/asm/string.h
index 2eb714c4639f..dd95d33a5bd5 100644
--- a/arch/arm64/include/asm/string.h
+++ b/arch/arm64/include/asm/string.h
@@ -52,6 +52,10 @@ extern void *__memset(void *, int, __kernel_size_t);
#define __HAVE_ARCH_MEMCMP
extern int memcmp(const void *, const void *, size_t);
+#ifdef CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE
+#define __HAVE_ARCH_MEMCPY_FLUSHCACHE
+void memcpy_flushcache(void *dst, const void *src, size_t cnt);
+#endif
#if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__)
@@ -63,6 +67,11 @@ extern int memcmp(const void *, const void *, size_t);
#define memcpy(dst, src, len) __memcpy(dst, src, len)
#define memmove(dst, src, len) __memmove(dst, src, len)
#define memset(s, c, n) __memset(s, c, n)
+
+#ifndef __NO_FORTIFY
+#define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */
+#endif
+
#endif
#endif
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index b4d13d9267ff..f707fed5886f 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -180,14 +180,31 @@
#define SYS_VBAR_EL1 sys_reg(3, 0, 12, 0, 0)
+#define SYS_ICC_IAR0_EL1 sys_reg(3, 0, 12, 8, 0)
+#define SYS_ICC_EOIR0_EL1 sys_reg(3, 0, 12, 8, 1)
+#define SYS_ICC_HPPIR0_EL1 sys_reg(3, 0, 12, 8, 2)
+#define SYS_ICC_BPR0_EL1 sys_reg(3, 0, 12, 8, 3)
+#define SYS_ICC_AP0Rn_EL1(n) sys_reg(3, 0, 12, 8, 4 | n)
+#define SYS_ICC_AP0R0_EL1 SYS_ICC_AP0Rn_EL1(0)
+#define SYS_ICC_AP0R1_EL1 SYS_ICC_AP0Rn_EL1(1)
+#define SYS_ICC_AP0R2_EL1 SYS_ICC_AP0Rn_EL1(2)
+#define SYS_ICC_AP0R3_EL1 SYS_ICC_AP0Rn_EL1(3)
+#define SYS_ICC_AP1Rn_EL1(n) sys_reg(3, 0, 12, 9, n)
+#define SYS_ICC_AP1R0_EL1 SYS_ICC_AP1Rn_EL1(0)
+#define SYS_ICC_AP1R1_EL1 SYS_ICC_AP1Rn_EL1(1)
+#define SYS_ICC_AP1R2_EL1 SYS_ICC_AP1Rn_EL1(2)
+#define SYS_ICC_AP1R3_EL1 SYS_ICC_AP1Rn_EL1(3)
#define SYS_ICC_DIR_EL1 sys_reg(3, 0, 12, 11, 1)
+#define SYS_ICC_RPR_EL1 sys_reg(3, 0, 12, 11, 3)
#define SYS_ICC_SGI1R_EL1 sys_reg(3, 0, 12, 11, 5)
#define SYS_ICC_IAR1_EL1 sys_reg(3, 0, 12, 12, 0)
#define SYS_ICC_EOIR1_EL1 sys_reg(3, 0, 12, 12, 1)
+#define SYS_ICC_HPPIR1_EL1 sys_reg(3, 0, 12, 12, 2)
#define SYS_ICC_BPR1_EL1 sys_reg(3, 0, 12, 12, 3)
#define SYS_ICC_CTLR_EL1 sys_reg(3, 0, 12, 12, 4)
#define SYS_ICC_SRE_EL1 sys_reg(3, 0, 12, 12, 5)
-#define SYS_ICC_GRPEN1_EL1 sys_reg(3, 0, 12, 12, 7)
+#define SYS_ICC_IGRPEN0_EL1 sys_reg(3, 0, 12, 12, 6)
+#define SYS_ICC_IGRPEN1_EL1 sys_reg(3, 0, 12, 12, 7)
#define SYS_CONTEXTIDR_EL1 sys_reg(3, 0, 13, 0, 1)
#define SYS_TPIDR_EL1 sys_reg(3, 0, 13, 0, 4)
@@ -287,8 +304,8 @@
#define SCTLR_ELx_M 1
#define SCTLR_EL2_RES1 ((1 << 4) | (1 << 5) | (1 << 11) | (1 << 16) | \
- (1 << 16) | (1 << 18) | (1 << 22) | (1 << 23) | \
- (1 << 28) | (1 << 29))
+ (1 << 18) | (1 << 22) | (1 << 23) | (1 << 28) | \
+ (1 << 29))
#define SCTLR_ELx_FLAGS (SCTLR_ELx_M | SCTLR_ELx_A | SCTLR_ELx_C | \
SCTLR_ELx_SA | SCTLR_ELx_I)
@@ -312,6 +329,7 @@
#define ID_AA64ISAR1_LRCPC_SHIFT 20
#define ID_AA64ISAR1_FCMA_SHIFT 16
#define ID_AA64ISAR1_JSCVT_SHIFT 12
+#define ID_AA64ISAR1_DPB_SHIFT 0
/* id_aa64pfr0 */
#define ID_AA64PFR0_GIC_SHIFT 24
@@ -475,7 +493,7 @@ asm(
* the "%x0" template means XZR.
*/
#define write_sysreg(v, r) do { \
- u64 __val = (u64)v; \
+ u64 __val = (u64)(v); \
asm volatile("msr " __stringify(r) ", %x0" \
: : "rZ" (__val)); \
} while (0)
@@ -491,7 +509,7 @@ asm(
})
#define write_sysreg_s(v, r) do { \
- u64 __val = (u64)v; \
+ u64 __val = (u64)(v); \
asm volatile("msr_s " __stringify(r) ", %x0" : : "rZ" (__val)); \
} while (0)
diff --git a/arch/arm64/include/asm/system_misc.h b/arch/arm64/include/asm/system_misc.h
index bc812435bc76..07aa8e3c5630 100644
--- a/arch/arm64/include/asm/system_misc.h
+++ b/arch/arm64/include/asm/system_misc.h
@@ -40,7 +40,7 @@ void hook_debug_fault_code(int nr, int (*fn)(unsigned long, unsigned int,
int sig, int code, const char *name);
struct mm_struct;
-extern void show_pte(struct mm_struct *mm, unsigned long addr);
+extern void show_pte(unsigned long addr);
extern void __show_regs(struct pt_regs *);
extern void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
@@ -56,6 +56,8 @@ extern void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
__show_ratelimited; \
})
+int handle_guest_sea(phys_addr_t addr, unsigned int esr);
+
#endif /* __ASSEMBLY__ */
#endif /* __ASM_SYSTEM_MISC_H */
diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h
index 46c3b93cf865..ddded6497a8a 100644
--- a/arch/arm64/include/asm/thread_info.h
+++ b/arch/arm64/include/asm/thread_info.h
@@ -23,19 +23,11 @@
#include <linux/compiler.h>
-#ifdef CONFIG_ARM64_4K_PAGES
-#define THREAD_SIZE_ORDER 2
-#elif defined(CONFIG_ARM64_16K_PAGES)
-#define THREAD_SIZE_ORDER 0
-#endif
-
-#define THREAD_SIZE 16384
-#define THREAD_START_SP (THREAD_SIZE - 16)
-
#ifndef __ASSEMBLY__
struct task_struct;
+#include <asm/memory.h>
#include <asm/stack_pointer.h>
#include <asm/types.h>
@@ -68,6 +60,9 @@ struct thread_info {
#define thread_saved_fp(tsk) \
((unsigned long)(tsk->thread.cpu_context.fp))
+void arch_setup_new_exec(void);
+#define arch_setup_new_exec arch_setup_new_exec
+
#endif
/*
@@ -86,6 +81,7 @@ struct thread_info {
#define TIF_NOTIFY_RESUME 2 /* callback before returning to user */
#define TIF_FOREIGN_FPSTATE 3 /* CPU's FP state is not current's */
#define TIF_UPROBE 4 /* uprobe breakpoint or singlestep */
+#define TIF_FSCHECK 5 /* Check FS is USER_DS on return */
#define TIF_NOHZ 7
#define TIF_SYSCALL_TRACE 8
#define TIF_SYSCALL_AUDIT 9
@@ -107,11 +103,12 @@ struct thread_info {
#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
#define _TIF_SECCOMP (1 << TIF_SECCOMP)
#define _TIF_UPROBE (1 << TIF_UPROBE)
+#define _TIF_FSCHECK (1 << TIF_FSCHECK)
#define _TIF_32BIT (1 << TIF_32BIT)
#define _TIF_WORK_MASK (_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
_TIF_NOTIFY_RESUME | _TIF_FOREIGN_FPSTATE | \
- _TIF_UPROBE)
+ _TIF_UPROBE | _TIF_FSCHECK)
#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
_TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP | \
diff --git a/arch/arm64/include/asm/traps.h b/arch/arm64/include/asm/traps.h
index 02e9035b0685..d131501c6222 100644
--- a/arch/arm64/include/asm/traps.h
+++ b/arch/arm64/include/asm/traps.h
@@ -37,18 +37,11 @@ void unregister_undef_hook(struct undef_hook *hook);
void arm64_notify_segfault(struct pt_regs *regs, unsigned long addr);
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
static inline int __in_irqentry_text(unsigned long ptr)
{
return ptr >= (unsigned long)&__irqentry_text_start &&
ptr < (unsigned long)&__irqentry_text_end;
}
-#else
-static inline int __in_irqentry_text(unsigned long ptr)
-{
- return 0;
-}
-#endif
static inline int in_exception_text(unsigned long ptr)
{
@@ -60,4 +53,9 @@ static inline int in_exception_text(unsigned long ptr)
return in ? : __in_irqentry_text(ptr);
}
+static inline int in_entry_text(unsigned long ptr)
+{
+ return ptr >= (unsigned long)&__entry_text_start &&
+ ptr < (unsigned long)&__entry_text_end;
+}
#endif
diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h
index 7b8a04789cef..fc0f9eb66039 100644
--- a/arch/arm64/include/asm/uaccess.h
+++ b/arch/arm64/include/asm/uaccess.h
@@ -45,6 +45,9 @@ static inline void set_fs(mm_segment_t fs)
{
current_thread_info()->addr_limit = fs;
+ /* On user-mode return, check fs is correct */
+ set_thread_flag(TIF_FSCHECK);
+
/*
* Enable/disable UAO so that copy_to_user() etc can access
* kernel memory with the unprivileged instructions.
@@ -69,7 +72,7 @@ static inline void set_fs(mm_segment_t fs)
*/
#define __range_ok(addr, size) \
({ \
- unsigned long __addr = (unsigned long __force)(addr); \
+ unsigned long __addr = (unsigned long)(addr); \
unsigned long flag, roksum; \
__chk_user_ptr(addr); \
asm("adds %1, %1, %3; ccmp %1, %4, #2, cc; cset %0, ls" \
@@ -254,8 +257,6 @@ do { \
(void)0; \
})
-#define __get_user_unaligned __get_user
-
#define get_user(x, ptr) \
({ \
__typeof__(*(ptr)) __user *__p = (ptr); \
@@ -320,8 +321,6 @@ do { \
(void)0; \
})
-#define __put_user_unaligned __put_user
-
#define put_user(x, ptr) \
({ \
__typeof__(*(ptr)) __user *__p = (ptr); \
@@ -349,7 +348,18 @@ static inline unsigned long __must_check clear_user(void __user *to, unsigned lo
extern long strncpy_from_user(char *dest, const char __user *src, long count);
-extern __must_check long strlen_user(const char __user *str);
extern __must_check long strnlen_user(const char __user *str, long n);
+#ifdef CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE
+struct page;
+void memcpy_page_flushcache(char *to, struct page *page, size_t offset, size_t len);
+extern unsigned long __must_check __copy_user_flushcache(void *to, const void __user *from, unsigned long n);
+
+static inline int __copy_from_user_flushcache(void *dst, const void __user *src, unsigned size)
+{
+ kasan_check_write(dst, size);
+ return __copy_user_flushcache(dst, src, size);
+}
+#endif
+
#endif /* __ASM_UACCESS_H */
diff --git a/arch/arm64/include/uapi/asm/Kbuild b/arch/arm64/include/uapi/asm/Kbuild
index 13a97aa2285f..fc28bd95c6d3 100644
--- a/arch/arm64/include/uapi/asm/Kbuild
+++ b/arch/arm64/include/uapi/asm/Kbuild
@@ -1,4 +1,20 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+generic-y += errno.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += poll.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += swab.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h
index 4e187ce2a811..4b9344cba83a 100644
--- a/arch/arm64/include/uapi/asm/hwcap.h
+++ b/arch/arm64/include/uapi/asm/hwcap.h
@@ -35,5 +35,6 @@
#define HWCAP_JSCVT (1 << 13)
#define HWCAP_FCMA (1 << 14)
#define HWCAP_LRCPC (1 << 15)
+#define HWCAP_DCPOP (1 << 16)
#endif /* _UAPI__ASM_HWCAP_H */
diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h
index 70eea2ecc663..9f3ca24bbcc6 100644
--- a/arch/arm64/include/uapi/asm/kvm.h
+++ b/arch/arm64/include/uapi/asm/kvm.h
@@ -232,6 +232,9 @@ struct kvm_arch_memory_slot {
#define KVM_ARM_VCPU_PMU_V3_CTRL 0
#define KVM_ARM_VCPU_PMU_V3_IRQ 0
#define KVM_ARM_VCPU_PMU_V3_INIT 1
+#define KVM_ARM_VCPU_TIMER_CTRL 1
+#define KVM_ARM_VCPU_TIMER_IRQ_VTIMER 0
+#define KVM_ARM_VCPU_TIMER_IRQ_PTIMER 1
/* KVM_IRQ_LINE irq field index values */
#define KVM_ARM_IRQ_TYPE_SHIFT 24
diff --git a/arch/arm64/include/uapi/asm/sigcontext.h b/arch/arm64/include/uapi/asm/sigcontext.h
index ee469be1ae1d..f0a76b9fcd6e 100644
--- a/arch/arm64/include/uapi/asm/sigcontext.h
+++ b/arch/arm64/include/uapi/asm/sigcontext.h
@@ -34,6 +34,26 @@ struct sigcontext {
};
/*
+ * Allocation of __reserved[]:
+ * (Note: records do not necessarily occur in the order shown here.)
+ *
+ * size description
+ *
+ * 0x210 fpsimd_context
+ * 0x10 esr_context
+ * 0x20 extra_context (optional)
+ * 0x10 terminator (null _aarch64_ctx)
+ *
+ * 0xdb0 (reserved for future allocation)
+ *
+ * New records that can exceed this space need to be opt-in for userspace, so
+ * that an expanded signal frame is not generated unexpectedly. The mechanism
+ * for opting in will depend on the extension that generates each new record.
+ * The above table documents the maximum set and sizes of records than can be
+ * generated when userspace does not opt in for any such extension.
+ */
+
+/*
* Header to be used at the beginning of structures extending the user
* context. Such structures must be placed after the rt_sigframe on the stack
* and be 16-byte aligned. The last structure must be a dummy one with the
@@ -61,4 +81,39 @@ struct esr_context {
__u64 esr;
};
+/*
+ * extra_context: describes extra space in the signal frame for
+ * additional structures that don't fit in sigcontext.__reserved[].
+ *
+ * Note:
+ *
+ * 1) fpsimd_context, esr_context and extra_context must be placed in
+ * sigcontext.__reserved[] if present. They cannot be placed in the
+ * extra space. Any other record can be placed either in the extra
+ * space or in sigcontext.__reserved[], unless otherwise specified in
+ * this file.
+ *
+ * 2) There must not be more than one extra_context.
+ *
+ * 3) If extra_context is present, it must be followed immediately in
+ * sigcontext.__reserved[] by the terminating null _aarch64_ctx.
+ *
+ * 4) The extra space to which datap points must start at the first
+ * 16-byte aligned address immediately after the terminating null
+ * _aarch64_ctx that follows the extra_context structure in
+ * __reserved[]. The extra space may overrun the end of __reserved[],
+ * as indicated by a sufficiently large value for the size field.
+ *
+ * 5) The extra space must itself be terminated with a null
+ * _aarch64_ctx.
+ */
+#define EXTRA_MAGIC 0x45585401
+
+struct extra_context {
+ struct _aarch64_ctx head;
+ __u64 datap; /* 16-byte aligned pointer to extra space cast to __u64 */
+ __u32 size; /* size in bytes of the extra space */
+ __u32 __reserved[3];
+};
+
#endif /* _UAPI__ASM_SIGCONTEXT_H */
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index 1dcb69d3d0e5..f2b4e816b6de 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -62,3 +62,6 @@ extra-y += $(head-y) vmlinux.lds
ifeq ($(CONFIG_DEBUG_EFI),y)
AFLAGS_head.o += -DVMLINUX_PATH="\"$(realpath $(objtree)/vmlinux)\""
endif
+
+# will be included by each individual module but not by the core kernel itself
+extra-$(CONFIG_DYNAMIC_FTRACE) += ftrace-mod.o
diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c
index e25c11e727fe..b3162715ed78 100644
--- a/arch/arm64/kernel/acpi.c
+++ b/arch/arm64/kernel/acpi.c
@@ -95,7 +95,7 @@ static int __init dt_scan_depth1_nodes(unsigned long node,
* __acpi_map_table() will be called before page_init(), so early_ioremap()
* or early_memremap() should be called here to for ACPI table mapping.
*/
-char *__init __acpi_map_table(unsigned long phys, unsigned long size)
+void __init __iomem *__acpi_map_table(unsigned long phys, unsigned long size)
{
if (!size)
return NULL;
@@ -103,7 +103,7 @@ char *__init __acpi_map_table(unsigned long phys, unsigned long size)
return early_memremap(phys, size);
}
-void __init __acpi_unmap_table(char *map, unsigned long size)
+void __init __acpi_unmap_table(void __iomem *map, unsigned long size)
{
if (!map || !size)
return;
diff --git a/arch/arm64/kernel/acpi_parking_protocol.c b/arch/arm64/kernel/acpi_parking_protocol.c
index 1f5655cd9cc9..98a20e58758b 100644
--- a/arch/arm64/kernel/acpi_parking_protocol.c
+++ b/arch/arm64/kernel/acpi_parking_protocol.c
@@ -71,7 +71,7 @@ static int acpi_parking_protocol_cpu_boot(unsigned int cpu)
{
struct cpu_mailbox_entry *cpu_entry = &cpu_mailbox_entries[cpu];
struct parking_protocol_mailbox __iomem *mailbox;
- __le32 cpu_id;
+ u32 cpu_id;
/*
* Map mailbox memory with attribute device nGnRE (ie ioremap -
@@ -123,9 +123,9 @@ static void acpi_parking_protocol_cpu_postboot(void)
int cpu = smp_processor_id();
struct cpu_mailbox_entry *cpu_entry = &cpu_mailbox_entries[cpu];
struct parking_protocol_mailbox __iomem *mailbox = cpu_entry->mailbox;
- __le64 entry_point;
+ u64 entry_point;
- entry_point = readl_relaxed(&mailbox->entry_point);
+ entry_point = readq_relaxed(&mailbox->entry_point);
/*
* Check if firmware has cleared the entry_point as expected
* by the protocol specification.
diff --git a/arch/arm64/kernel/alternative.c b/arch/arm64/kernel/alternative.c
index 8840c109c5d6..6dd0a3a3e5c9 100644
--- a/arch/arm64/kernel/alternative.c
+++ b/arch/arm64/kernel/alternative.c
@@ -28,7 +28,7 @@
#include <asm/sections.h>
#include <linux/stop_machine.h>
-#define __ALT_PTR(a,f) (u32 *)((void *)&(a)->f + (a)->f)
+#define __ALT_PTR(a,f) ((void *)&(a)->f + (a)->f)
#define ALT_ORIG_PTR(a) __ALT_PTR(a, orig_offset)
#define ALT_REPL_PTR(a) __ALT_PTR(a, alt_offset)
@@ -60,7 +60,7 @@ static bool branch_insn_requires_update(struct alt_instr *alt, unsigned long pc)
#define align_down(x, a) ((unsigned long)(x) & ~(((unsigned long)(a)) - 1))
-static u32 get_alt_insn(struct alt_instr *alt, u32 *insnptr, u32 *altinsnptr)
+static u32 get_alt_insn(struct alt_instr *alt, __le32 *insnptr, __le32 *altinsnptr)
{
u32 insn;
@@ -109,7 +109,7 @@ static void __apply_alternatives(void *alt_region, bool use_linear_alias)
{
struct alt_instr *alt;
struct alt_region *region = alt_region;
- u32 *origptr, *replptr, *updptr;
+ __le32 *origptr, *replptr, *updptr;
for (alt = region->begin; alt < region->end; alt++) {
u32 insn;
@@ -124,7 +124,7 @@ static void __apply_alternatives(void *alt_region, bool use_linear_alias)
origptr = ALT_ORIG_PTR(alt);
replptr = ALT_REPL_PTR(alt);
- updptr = use_linear_alias ? (u32 *)lm_alias(origptr) : origptr;
+ updptr = use_linear_alias ? lm_alias(origptr) : origptr;
nr_inst = alt->alt_len / sizeof(insn);
for (i = 0; i < nr_inst; i++) {
diff --git a/arch/arm64/kernel/armv8_deprecated.c b/arch/arm64/kernel/armv8_deprecated.c
index f0e6d717885b..d06fbe4cd38d 100644
--- a/arch/arm64/kernel/armv8_deprecated.c
+++ b/arch/arm64/kernel/armv8_deprecated.c
@@ -649,4 +649,4 @@ static int __init armv8_deprecated_init(void)
return 0;
}
-late_initcall(armv8_deprecated_init);
+core_initcall(armv8_deprecated_init);
diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c
index b3bb7ef97bc8..71bf088f1e4b 100644
--- a/arch/arm64/kernel/asm-offsets.c
+++ b/arch/arm64/kernel/asm-offsets.c
@@ -75,6 +75,7 @@ int main(void)
DEFINE(S_ORIG_X0, offsetof(struct pt_regs, orig_x0));
DEFINE(S_SYSCALLNO, offsetof(struct pt_regs, syscallno));
DEFINE(S_ORIG_ADDR_LIMIT, offsetof(struct pt_regs, orig_addr_limit));
+ DEFINE(S_STACKFRAME, offsetof(struct pt_regs, stackframe));
DEFINE(S_FRAME_SIZE, sizeof(struct pt_regs));
BLANK();
DEFINE(MM_CONTEXT_ID, offsetof(struct mm_struct, context.id.counter));
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 2ed2a7657711..0e27f86ee709 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -133,6 +133,27 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
MIDR_RANGE(MIDR_THUNDERX_81XX, 0x00, 0x00),
},
#endif
+#ifdef CONFIG_CAVIUM_ERRATUM_30115
+ {
+ /* Cavium ThunderX, T88 pass 1.x - 2.2 */
+ .desc = "Cavium erratum 30115",
+ .capability = ARM64_WORKAROUND_CAVIUM_30115,
+ MIDR_RANGE(MIDR_THUNDERX, 0x00,
+ (1 << MIDR_VARIANT_SHIFT) | 2),
+ },
+ {
+ /* Cavium ThunderX, T81 pass 1.0 - 1.2 */
+ .desc = "Cavium erratum 30115",
+ .capability = ARM64_WORKAROUND_CAVIUM_30115,
+ MIDR_RANGE(MIDR_THUNDERX_81XX, 0x00, 0x02),
+ },
+ {
+ /* Cavium ThunderX, T83 pass 1.0 */
+ .desc = "Cavium erratum 30115",
+ .capability = ARM64_WORKAROUND_CAVIUM_30115,
+ MIDR_RANGE(MIDR_THUNDERX_83XX, 0x00, 0x00),
+ },
+#endif
{
.desc = "Mismatched cache line size",
.capability = ARM64_MISMATCHED_CACHE_LINE_SIZE,
diff --git a/arch/arm64/kernel/cpu_ops.c b/arch/arm64/kernel/cpu_ops.c
index e137ceaf5016..d16978213c5b 100644
--- a/arch/arm64/kernel/cpu_ops.c
+++ b/arch/arm64/kernel/cpu_ops.c
@@ -82,8 +82,8 @@ static const char *__init cpu_read_enable_method(int cpu)
* Don't warn spuriously.
*/
if (cpu != 0)
- pr_err("%s: missing enable-method property\n",
- dn->full_name);
+ pr_err("%pOF: missing enable-method property\n",
+ dn);
}
} else {
enable_method = acpi_get_enable_method(cpu);
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 817ce3365e20..21e2c95d24e7 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -51,6 +51,25 @@ unsigned int compat_elf_hwcap2 __read_mostly;
DECLARE_BITMAP(cpu_hwcaps, ARM64_NCAPS);
EXPORT_SYMBOL(cpu_hwcaps);
+static int dump_cpu_hwcaps(struct notifier_block *self, unsigned long v, void *p)
+{
+ /* file-wide pr_fmt adds "CPU features: " prefix */
+ pr_emerg("0x%*pb\n", ARM64_NCAPS, &cpu_hwcaps);
+ return 0;
+}
+
+static struct notifier_block cpu_hwcaps_notifier = {
+ .notifier_call = dump_cpu_hwcaps
+};
+
+static int __init register_cpu_hwcaps_dumper(void)
+{
+ atomic_notifier_chain_register(&panic_notifier_list,
+ &cpu_hwcaps_notifier);
+ return 0;
+}
+__initcall(register_cpu_hwcaps_dumper);
+
DEFINE_STATIC_KEY_ARRAY_FALSE(cpu_hwcap_keys, ARM64_NCAPS);
EXPORT_SYMBOL(cpu_hwcap_keys);
@@ -101,6 +120,7 @@ static const struct arm64_ftr_bits ftr_id_aa64isar1[] = {
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_EXACT, ID_AA64ISAR1_LRCPC_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_EXACT, ID_AA64ISAR1_FCMA_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_EXACT, ID_AA64ISAR1_JSCVT_SHIFT, 4, 0),
+ ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_EXACT, ID_AA64ISAR1_DPB_SHIFT, 4, 0),
ARM64_FTR_END,
};
@@ -639,8 +659,10 @@ void update_cpu_features(int cpu,
* Mismatched CPU features are a recipe for disaster. Don't even
* pretend to support them.
*/
- WARN_TAINT_ONCE(taint, TAINT_CPU_OUT_OF_SPEC,
- "Unsupported CPU feature variation.\n");
+ if (taint) {
+ pr_warn_once("Unsupported CPU feature variation detected.\n");
+ add_taint(TAINT_CPU_OUT_OF_SPEC, LOCKDEP_STILL_OK);
+ }
}
u64 read_sanitised_ftr_reg(u32 id)
@@ -867,6 +889,17 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
.min_field_value = 0,
.matches = has_no_fpsimd,
},
+#ifdef CONFIG_ARM64_PMEM
+ {
+ .desc = "Data cache clean to Point of Persistence",
+ .capability = ARM64_HAS_DCPOP,
+ .def_scope = SCOPE_SYSTEM,
+ .matches = has_cpuid_feature,
+ .sys_reg = SYS_ID_AA64ISAR1_EL1,
+ .field_pos = ID_AA64ISAR1_DPB_SHIFT,
+ .min_field_value = 1,
+ },
+#endif
{},
};
@@ -895,6 +928,7 @@ static const struct arm64_cpu_capabilities arm64_elf_hwcaps[] = {
HWCAP_CAP(SYS_ID_AA64PFR0_EL1, ID_AA64PFR0_FP_SHIFT, FTR_SIGNED, 1, CAP_HWCAP, HWCAP_FPHP),
HWCAP_CAP(SYS_ID_AA64PFR0_EL1, ID_AA64PFR0_ASIMD_SHIFT, FTR_SIGNED, 0, CAP_HWCAP, HWCAP_ASIMD),
HWCAP_CAP(SYS_ID_AA64PFR0_EL1, ID_AA64PFR0_ASIMD_SHIFT, FTR_SIGNED, 1, CAP_HWCAP, HWCAP_ASIMDHP),
+ HWCAP_CAP(SYS_ID_AA64ISAR1_EL1, ID_AA64ISAR1_DPB_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, HWCAP_DCPOP),
HWCAP_CAP(SYS_ID_AA64ISAR1_EL1, ID_AA64ISAR1_JSCVT_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, HWCAP_JSCVT),
HWCAP_CAP(SYS_ID_AA64ISAR1_EL1, ID_AA64ISAR1_FCMA_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, HWCAP_FCMA),
HWCAP_CAP(SYS_ID_AA64ISAR1_EL1, ID_AA64ISAR1_LRCPC_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, HWCAP_LRCPC),
@@ -1273,4 +1307,4 @@ static int __init enable_mrs_emulation(void)
return 0;
}
-late_initcall(enable_mrs_emulation);
+core_initcall(enable_mrs_emulation);
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index 68b1f364c515..311885962830 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -68,6 +68,7 @@ static const char *const hwcap_str[] = {
"jscvt",
"fcma",
"lrcpc",
+ "dcpop",
NULL
};
@@ -227,7 +228,7 @@ static struct attribute *cpuregs_id_attrs[] = {
NULL
};
-static struct attribute_group cpuregs_attr_group = {
+static const struct attribute_group cpuregs_attr_group = {
.attrs = cpuregs_id_attrs,
.name = "identification"
};
diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-monitors.c
index d618e25c3de1..c7ef99904934 100644
--- a/arch/arm64/kernel/debug-monitors.c
+++ b/arch/arm64/kernel/debug-monitors.c
@@ -341,20 +341,22 @@ int aarch32_break_handler(struct pt_regs *regs)
if (compat_thumb_mode(regs)) {
/* get 16-bit Thumb instruction */
- get_user(thumb_instr, (u16 __user *)pc);
- thumb_instr = le16_to_cpu(thumb_instr);
+ __le16 instr;
+ get_user(instr, (__le16 __user *)pc);
+ thumb_instr = le16_to_cpu(instr);
if (thumb_instr == AARCH32_BREAK_THUMB2_LO) {
/* get second half of 32-bit Thumb-2 instruction */
- get_user(thumb_instr, (u16 __user *)(pc + 2));
- thumb_instr = le16_to_cpu(thumb_instr);
+ get_user(instr, (__le16 __user *)(pc + 2));
+ thumb_instr = le16_to_cpu(instr);
bp = thumb_instr == AARCH32_BREAK_THUMB2_HI;
} else {
bp = thumb_instr == AARCH32_BREAK_THUMB;
}
} else {
/* 32-bit ARM instruction */
- get_user(arm_instr, (u32 __user *)pc);
- arm_instr = le32_to_cpu(arm_instr);
+ __le32 instr;
+ get_user(instr, (__le32 __user *)pc);
+ arm_instr = le32_to_cpu(instr);
bp = (arm_instr & ~0xf0000000) == AARCH32_BREAK_ARM;
}
diff --git a/arch/arm64/kernel/efi.c b/arch/arm64/kernel/efi.c
index 5d17f377d905..82cd07592519 100644
--- a/arch/arm64/kernel/efi.c
+++ b/arch/arm64/kernel/efi.c
@@ -11,7 +11,6 @@
*
*/
-#include <linux/dmi.h>
#include <linux/efi.h>
#include <linux/init.h>
@@ -117,20 +116,6 @@ int __init efi_set_mapping_permissions(struct mm_struct *mm,
set_permissions, md);
}
-static int __init arm64_dmi_init(void)
-{
- /*
- * On arm64, DMI depends on UEFI, and dmi_scan_machine() needs to
- * be called early because dmi_id_init(), which is an arch_initcall
- * itself, depends on dmi_scan_machine() having been called already.
- */
- dmi_scan_machine();
- if (dmi_available)
- dmi_set_dump_stack_arch_desc();
- return 0;
-}
-core_initcall(arm64_dmi_init);
-
/*
* UpdateCapsule() depends on the system being shutdown via
* ResetSystem().
diff --git a/arch/arm64/kernel/entry-fpsimd.S b/arch/arm64/kernel/entry-fpsimd.S
index c44a82f146b1..6a27cd6dbfa6 100644
--- a/arch/arm64/kernel/entry-fpsimd.S
+++ b/arch/arm64/kernel/entry-fpsimd.S
@@ -41,27 +41,3 @@ ENTRY(fpsimd_load_state)
fpsimd_restore x0, 8
ret
ENDPROC(fpsimd_load_state)
-
-#ifdef CONFIG_KERNEL_MODE_NEON
-
-/*
- * Save the bottom n FP registers.
- *
- * x0 - pointer to struct fpsimd_partial_state
- */
-ENTRY(fpsimd_save_partial_state)
- fpsimd_save_partial x0, 1, 8, 9
- ret
-ENDPROC(fpsimd_save_partial_state)
-
-/*
- * Load the bottom n FP registers.
- *
- * x0 - pointer to struct fpsimd_partial_state
- */
-ENTRY(fpsimd_load_partial_state)
- fpsimd_restore_partial x0, 8, 9
- ret
-ENDPROC(fpsimd_load_partial_state)
-
-#endif
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index b738880350f9..e1c59d4008a8 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -69,8 +69,55 @@
#define BAD_FIQ 2
#define BAD_ERROR 3
- .macro kernel_entry, el, regsize = 64
+ .macro kernel_ventry label
+ .align 7
sub sp, sp, #S_FRAME_SIZE
+#ifdef CONFIG_VMAP_STACK
+ /*
+ * Test whether the SP has overflowed, without corrupting a GPR.
+ * Task and IRQ stacks are aligned to (1 << THREAD_SHIFT).
+ */
+ add sp, sp, x0 // sp' = sp + x0
+ sub x0, sp, x0 // x0' = sp' - x0 = (sp + x0) - x0 = sp
+ tbnz x0, #THREAD_SHIFT, 0f
+ sub x0, sp, x0 // x0'' = sp' - x0' = (sp + x0) - sp = x0
+ sub sp, sp, x0 // sp'' = sp' - x0 = (sp + x0) - x0 = sp
+ b \label
+
+0:
+ /*
+ * Either we've just detected an overflow, or we've taken an exception
+ * while on the overflow stack. Either way, we won't return to
+ * userspace, and can clobber EL0 registers to free up GPRs.
+ */
+
+ /* Stash the original SP (minus S_FRAME_SIZE) in tpidr_el0. */
+ msr tpidr_el0, x0
+
+ /* Recover the original x0 value and stash it in tpidrro_el0 */
+ sub x0, sp, x0
+ msr tpidrro_el0, x0
+
+ /* Switch to the overflow stack */
+ adr_this_cpu sp, overflow_stack + OVERFLOW_STACK_SIZE, x0
+
+ /*
+ * Check whether we were already on the overflow stack. This may happen
+ * after panic() re-enables interrupts.
+ */
+ mrs x0, tpidr_el0 // sp of interrupted context
+ sub x0, sp, x0 // delta with top of overflow stack
+ tst x0, #~(OVERFLOW_STACK_SIZE - 1) // within range?
+ b.ne __bad_stack // no? -> bad stack pointer
+
+ /* We were already on the overflow stack. Restore sp/x0 and carry on. */
+ sub sp, sp, x0
+ mrs x0, tpidrro_el0
+#endif
+ b \label
+ .endm
+
+ .macro kernel_entry, el, regsize = 64
.if \regsize == 32
mov w0, w0 // zero upper 32 bits of x0
.endif
@@ -111,6 +158,18 @@
mrs x23, spsr_el1
stp lr, x21, [sp, #S_LR]
+ /*
+ * In order to be able to dump the contents of struct pt_regs at the
+ * time the exception was taken (in case we attempt to walk the call
+ * stack later), chain it together with the stack frames.
+ */
+ .if \el == 0
+ stp xzr, xzr, [sp, #S_STACKFRAME]
+ .else
+ stp x29, x22, [sp, #S_STACKFRAME]
+ .endif
+ add x29, sp, #S_STACKFRAME
+
#ifdef CONFIG_ARM64_SW_TTBR0_PAN
/*
* Set the TTBR0 PAN bit in SPSR. When the exception is taken from
@@ -138,12 +197,10 @@ alternative_else_nop_endif
stp x22, x23, [sp, #S_PC]
- /*
- * Set syscallno to -1 by default (overridden later if real syscall).
- */
+ /* Not in a syscall by default (el0_svc overwrites for real syscall) */
.if \el == 0
- mvn x21, xzr
- str x21, [sp, #S_SYSCALLNO]
+ mov w21, #NO_SYSCALL
+ str w21, [sp, #S_SYSCALLNO]
.endif
/*
@@ -259,20 +316,12 @@ alternative_else_nop_endif
and x25, x25, #~(THREAD_SIZE - 1)
cbnz x25, 9998f
- adr_this_cpu x25, irq_stack, x26
- mov x26, #IRQ_STACK_START_SP
+ ldr_this_cpu x25, irq_stack_ptr, x26
+ mov x26, #IRQ_STACK_SIZE
add x26, x25, x26
/* switch to the irq stack */
mov sp, x26
-
- /*
- * Add a dummy stack frame, this non-standard format is fixed up
- * by unwind_frame()
- */
- stp x29, x19, [sp, #-16]!
- mov x29, sp
-
9998:
.endm
@@ -290,8 +339,9 @@ alternative_else_nop_endif
*
* x7 is reserved for the system call number in 32-bit mode.
*/
-sc_nr .req x25 // number of system calls
-scno .req x26 // syscall number
+wsc_nr .req w25 // number of system calls
+wscno .req w26 // syscall number
+xscno .req x26 // syscall number (zero-extended)
stbl .req x27 // syscall table pointer
tsk .req x28 // current thread_info
@@ -315,34 +365,62 @@ tsk .req x28 // current thread_info
.align 11
ENTRY(vectors)
- ventry el1_sync_invalid // Synchronous EL1t
- ventry el1_irq_invalid // IRQ EL1t
- ventry el1_fiq_invalid // FIQ EL1t
- ventry el1_error_invalid // Error EL1t
+ kernel_ventry el1_sync_invalid // Synchronous EL1t
+ kernel_ventry el1_irq_invalid // IRQ EL1t
+ kernel_ventry el1_fiq_invalid // FIQ EL1t
+ kernel_ventry el1_error_invalid // Error EL1t
- ventry el1_sync // Synchronous EL1h
- ventry el1_irq // IRQ EL1h
- ventry el1_fiq_invalid // FIQ EL1h
- ventry el1_error_invalid // Error EL1h
+ kernel_ventry el1_sync // Synchronous EL1h
+ kernel_ventry el1_irq // IRQ EL1h
+ kernel_ventry el1_fiq_invalid // FIQ EL1h
+ kernel_ventry el1_error_invalid // Error EL1h
- ventry el0_sync // Synchronous 64-bit EL0
- ventry el0_irq // IRQ 64-bit EL0
- ventry el0_fiq_invalid // FIQ 64-bit EL0
- ventry el0_error_invalid // Error 64-bit EL0
+ kernel_ventry el0_sync // Synchronous 64-bit EL0
+ kernel_ventry el0_irq // IRQ 64-bit EL0
+ kernel_ventry el0_fiq_invalid // FIQ 64-bit EL0
+ kernel_ventry el0_error_invalid // Error 64-bit EL0
#ifdef CONFIG_COMPAT
- ventry el0_sync_compat // Synchronous 32-bit EL0
- ventry el0_irq_compat // IRQ 32-bit EL0
- ventry el0_fiq_invalid_compat // FIQ 32-bit EL0
- ventry el0_error_invalid_compat // Error 32-bit EL0
+ kernel_ventry el0_sync_compat // Synchronous 32-bit EL0
+ kernel_ventry el0_irq_compat // IRQ 32-bit EL0
+ kernel_ventry el0_fiq_invalid_compat // FIQ 32-bit EL0
+ kernel_ventry el0_error_invalid_compat // Error 32-bit EL0
#else
- ventry el0_sync_invalid // Synchronous 32-bit EL0
- ventry el0_irq_invalid // IRQ 32-bit EL0
- ventry el0_fiq_invalid // FIQ 32-bit EL0
- ventry el0_error_invalid // Error 32-bit EL0
+ kernel_ventry el0_sync_invalid // Synchronous 32-bit EL0
+ kernel_ventry el0_irq_invalid // IRQ 32-bit EL0
+ kernel_ventry el0_fiq_invalid // FIQ 32-bit EL0
+ kernel_ventry el0_error_invalid // Error 32-bit EL0
#endif
END(vectors)
+#ifdef CONFIG_VMAP_STACK
+ /*
+ * We detected an overflow in kernel_ventry, which switched to the
+ * overflow stack. Stash the exception regs, and head to our overflow
+ * handler.
+ */
+__bad_stack:
+ /* Restore the original x0 value */
+ mrs x0, tpidrro_el0
+
+ /*
+ * Store the original GPRs to the new stack. The orginal SP (minus
+ * S_FRAME_SIZE) was stashed in tpidr_el0 by kernel_ventry.
+ */
+ sub sp, sp, #S_FRAME_SIZE
+ kernel_entry 1
+ mrs x0, tpidr_el0
+ add x0, x0, #S_FRAME_SIZE
+ str x0, [sp, #S_SP]
+
+ /* Stash the regs for handle_bad_stack */
+ mov x0, sp
+
+ /* Time to die */
+ bl handle_bad_stack
+ ASM_BUG()
+#endif /* CONFIG_VMAP_STACK */
+
/*
* Invalid mode handlers
*/
@@ -351,7 +429,8 @@ END(vectors)
mov x0, sp
mov x1, #\reason
mrs x2, esr_el1
- b bad_mode
+ bl bad_mode
+ ASM_BUG()
.endm
el0_sync_invalid:
@@ -448,14 +527,16 @@ el1_sp_pc:
mrs x0, far_el1
enable_dbg
mov x2, sp
- b do_sp_pc_abort
+ bl do_sp_pc_abort
+ ASM_BUG()
el1_undef:
/*
* Undefined instruction
*/
enable_dbg
mov x0, sp
- b do_undefinstr
+ bl do_undefinstr
+ ASM_BUG()
el1_dbg:
/*
* Debug exception handling
@@ -473,7 +554,8 @@ el1_inv:
mov x0, sp
mov x2, x1
mov x1, #BAD_SYNC
- b bad_mode
+ bl bad_mode
+ ASM_BUG()
ENDPROC(el1_sync)
.align 6
@@ -577,8 +659,8 @@ el0_svc_compat:
* AArch32 syscall handling
*/
adrp stbl, compat_sys_call_table // load compat syscall table pointer
- uxtw scno, w7 // syscall number in w7 (r7)
- mov sc_nr, #__NR_compat_syscalls
+ mov wscno, w7 // syscall number in w7 (r7)
+ mov wsc_nr, #__NR_compat_syscalls
b el0_svc_naked
.align 6
@@ -707,38 +789,6 @@ el0_irq_naked:
ENDPROC(el0_irq)
/*
- * Register switch for AArch64. The callee-saved registers need to be saved
- * and restored. On entry:
- * x0 = previous task_struct (must be preserved across the switch)
- * x1 = next task_struct
- * Previous and next are guaranteed not to be the same.
- *
- */
-ENTRY(cpu_switch_to)
- mov x10, #THREAD_CPU_CONTEXT
- add x8, x0, x10
- mov x9, sp
- stp x19, x20, [x8], #16 // store callee-saved registers
- stp x21, x22, [x8], #16
- stp x23, x24, [x8], #16
- stp x25, x26, [x8], #16
- stp x27, x28, [x8], #16
- stp x29, x9, [x8], #16
- str lr, [x8]
- add x8, x1, x10
- ldp x19, x20, [x8], #16 // restore callee-saved registers
- ldp x21, x22, [x8], #16
- ldp x23, x24, [x8], #16
- ldp x25, x26, [x8], #16
- ldp x27, x28, [x8], #16
- ldp x29, x9, [x8], #16
- ldr lr, [x8]
- mov sp, x9
- msr sp_el0, x1
- ret
-ENDPROC(cpu_switch_to)
-
-/*
* This is the fast syscall return path. We do as little as possible here,
* and this includes saving x0 back into the kernel stack.
*/
@@ -781,36 +831,24 @@ finish_ret_to_user:
ENDPROC(ret_to_user)
/*
- * This is how we return from a fork.
- */
-ENTRY(ret_from_fork)
- bl schedule_tail
- cbz x19, 1f // not a kernel thread
- mov x0, x20
- blr x19
-1: get_thread_info tsk
- b ret_to_user
-ENDPROC(ret_from_fork)
-
-/*
* SVC handler.
*/
.align 6
el0_svc:
adrp stbl, sys_call_table // load syscall table pointer
- uxtw scno, w8 // syscall number in w8
- mov sc_nr, #__NR_syscalls
+ mov wscno, w8 // syscall number in w8
+ mov wsc_nr, #__NR_syscalls
el0_svc_naked: // compat entry point
- stp x0, scno, [sp, #S_ORIG_X0] // save the original x0 and syscall number
+ stp x0, xscno, [sp, #S_ORIG_X0] // save the original x0 and syscall number
enable_dbg_and_irq
ct_user_exit 1
ldr x16, [tsk, #TSK_TI_FLAGS] // check for syscall hooks
tst x16, #_TIF_SYSCALL_WORK
b.ne __sys_trace
- cmp scno, sc_nr // check upper syscall limit
+ cmp wscno, wsc_nr // check upper syscall limit
b.hs ni_sys
- ldr x16, [stbl, scno, lsl #3] // address in the syscall table
+ ldr x16, [stbl, xscno, lsl #3] // address in the syscall table
blr x16 // call sys_* routine
b ret_fast_syscall
ni_sys:
@@ -824,24 +862,23 @@ ENDPROC(el0_svc)
* switches, and waiting for our parent to respond.
*/
__sys_trace:
- mov w0, #-1 // set default errno for
- cmp scno, x0 // user-issued syscall(-1)
+ cmp wscno, #NO_SYSCALL // user-issued syscall(-1)?
b.ne 1f
- mov x0, #-ENOSYS
+ mov x0, #-ENOSYS // set default errno if so
str x0, [sp, #S_X0]
1: mov x0, sp
bl syscall_trace_enter
- cmp w0, #-1 // skip the syscall?
+ cmp w0, #NO_SYSCALL // skip the syscall?
b.eq __sys_trace_return_skipped
- uxtw scno, w0 // syscall number (possibly new)
+ mov wscno, w0 // syscall number (possibly new)
mov x1, sp // pointer to regs
- cmp scno, sc_nr // check upper syscall limit
+ cmp wscno, wsc_nr // check upper syscall limit
b.hs __ni_sys_trace
ldp x0, x1, [sp] // restore the syscall args
ldp x2, x3, [sp, #S_X2]
ldp x4, x5, [sp, #S_X4]
ldp x6, x7, [sp, #S_X6]
- ldr x16, [stbl, scno, lsl #3] // address in the syscall table
+ ldr x16, [stbl, xscno, lsl #3] // address in the syscall table
blr x16 // call sys_* routine
__sys_trace_return:
@@ -865,3 +902,49 @@ ENTRY(sys_rt_sigreturn_wrapper)
mov x0, sp
b sys_rt_sigreturn
ENDPROC(sys_rt_sigreturn_wrapper)
+
+/*
+ * Register switch for AArch64. The callee-saved registers need to be saved
+ * and restored. On entry:
+ * x0 = previous task_struct (must be preserved across the switch)
+ * x1 = next task_struct
+ * Previous and next are guaranteed not to be the same.
+ *
+ */
+ENTRY(cpu_switch_to)
+ mov x10, #THREAD_CPU_CONTEXT
+ add x8, x0, x10
+ mov x9, sp
+ stp x19, x20, [x8], #16 // store callee-saved registers
+ stp x21, x22, [x8], #16
+ stp x23, x24, [x8], #16
+ stp x25, x26, [x8], #16
+ stp x27, x28, [x8], #16
+ stp x29, x9, [x8], #16
+ str lr, [x8]
+ add x8, x1, x10
+ ldp x19, x20, [x8], #16 // restore callee-saved registers
+ ldp x21, x22, [x8], #16
+ ldp x23, x24, [x8], #16
+ ldp x25, x26, [x8], #16
+ ldp x27, x28, [x8], #16
+ ldp x29, x9, [x8], #16
+ ldr lr, [x8]
+ mov sp, x9
+ msr sp_el0, x1
+ ret
+ENDPROC(cpu_switch_to)
+NOKPROBE(cpu_switch_to)
+
+/*
+ * This is how we return from a fork.
+ */
+ENTRY(ret_from_fork)
+ bl schedule_tail
+ cbz x19, 1f // not a kernel thread
+ mov x0, x20
+ blr x19
+1: get_thread_info tsk
+ b ret_to_user
+ENDPROC(ret_from_fork)
+NOKPROBE(ret_from_fork)
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
index 06da8ea16bbe..5d547deb6996 100644
--- a/arch/arm64/kernel/fpsimd.c
+++ b/arch/arm64/kernel/fpsimd.c
@@ -17,16 +17,19 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <linux/bottom_half.h>
#include <linux/cpu.h>
#include <linux/cpu_pm.h>
#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/percpu.h>
+#include <linux/preempt.h>
#include <linux/sched/signal.h>
#include <linux/signal.h>
-#include <linux/hardirq.h>
#include <asm/fpsimd.h>
#include <asm/cputype.h>
+#include <asm/simd.h>
#define FPEXC_IOF (1 << 0)
#define FPEXC_DZF (1 << 1)
@@ -62,6 +65,13 @@
* CPU currently contain the most recent userland FPSIMD state of the current
* task.
*
+ * In order to allow softirq handlers to use FPSIMD, kernel_neon_begin() may
+ * save the task's FPSIMD context back to task_struct from softirq context.
+ * To prevent this from racing with the manipulation of the task's FPSIMD state
+ * from task context and thereby corrupting the state, it is necessary to
+ * protect any manipulation of a task's fpsimd_state or TIF_FOREIGN_FPSTATE
+ * flag with local_bh_disable() unless softirqs are already masked.
+ *
* For a certain task, the sequence may look something like this:
* - the task gets scheduled in; if both the task's fpsimd_state.cpu field
* contains the id of the current CPU, and the CPU's fpsimd_last_state per-cpu
@@ -161,9 +171,14 @@ void fpsimd_flush_thread(void)
{
if (!system_supports_fpsimd())
return;
+
+ local_bh_disable();
+
memset(&current->thread.fpsimd_state, 0, sizeof(struct fpsimd_state));
fpsimd_flush_task_state(current);
set_thread_flag(TIF_FOREIGN_FPSTATE);
+
+ local_bh_enable();
}
/*
@@ -174,10 +189,13 @@ void fpsimd_preserve_current_state(void)
{
if (!system_supports_fpsimd())
return;
- preempt_disable();
+
+ local_bh_disable();
+
if (!test_thread_flag(TIF_FOREIGN_FPSTATE))
fpsimd_save_state(&current->thread.fpsimd_state);
- preempt_enable();
+
+ local_bh_enable();
}
/*
@@ -189,15 +207,18 @@ void fpsimd_restore_current_state(void)
{
if (!system_supports_fpsimd())
return;
- preempt_disable();
+
+ local_bh_disable();
+
if (test_and_clear_thread_flag(TIF_FOREIGN_FPSTATE)) {
struct fpsimd_state *st = &current->thread.fpsimd_state;
fpsimd_load_state(st);
- this_cpu_write(fpsimd_last_state, st);
+ __this_cpu_write(fpsimd_last_state, st);
st->cpu = smp_processor_id();
}
- preempt_enable();
+
+ local_bh_enable();
}
/*
@@ -209,15 +230,18 @@ void fpsimd_update_current_state(struct fpsimd_state *state)
{
if (!system_supports_fpsimd())
return;
- preempt_disable();
+
+ local_bh_disable();
+
fpsimd_load_state(state);
if (test_and_clear_thread_flag(TIF_FOREIGN_FPSTATE)) {
struct fpsimd_state *st = &current->thread.fpsimd_state;
- this_cpu_write(fpsimd_last_state, st);
+ __this_cpu_write(fpsimd_last_state, st);
st->cpu = smp_processor_id();
}
- preempt_enable();
+
+ local_bh_enable();
}
/*
@@ -230,52 +254,126 @@ void fpsimd_flush_task_state(struct task_struct *t)
#ifdef CONFIG_KERNEL_MODE_NEON
-static DEFINE_PER_CPU(struct fpsimd_partial_state, hardirq_fpsimdstate);
-static DEFINE_PER_CPU(struct fpsimd_partial_state, softirq_fpsimdstate);
+DEFINE_PER_CPU(bool, kernel_neon_busy);
+EXPORT_PER_CPU_SYMBOL(kernel_neon_busy);
/*
* Kernel-side NEON support functions
*/
-void kernel_neon_begin_partial(u32 num_regs)
+
+/*
+ * kernel_neon_begin(): obtain the CPU FPSIMD registers for use by the calling
+ * context
+ *
+ * Must not be called unless may_use_simd() returns true.
+ * Task context in the FPSIMD registers is saved back to memory as necessary.
+ *
+ * A matching call to kernel_neon_end() must be made before returning from the
+ * calling context.
+ *
+ * The caller may freely use the FPSIMD registers until kernel_neon_end() is
+ * called.
+ */
+void kernel_neon_begin(void)
{
if (WARN_ON(!system_supports_fpsimd()))
return;
- if (in_interrupt()) {
- struct fpsimd_partial_state *s = this_cpu_ptr(
- in_irq() ? &hardirq_fpsimdstate : &softirq_fpsimdstate);
- BUG_ON(num_regs > 32);
- fpsimd_save_partial_state(s, roundup(num_regs, 2));
- } else {
- /*
- * Save the userland FPSIMD state if we have one and if we
- * haven't done so already. Clear fpsimd_last_state to indicate
- * that there is no longer userland FPSIMD state in the
- * registers.
- */
- preempt_disable();
- if (current->mm &&
- !test_and_set_thread_flag(TIF_FOREIGN_FPSTATE))
- fpsimd_save_state(&current->thread.fpsimd_state);
- this_cpu_write(fpsimd_last_state, NULL);
- }
+ BUG_ON(!may_use_simd());
+
+ local_bh_disable();
+
+ __this_cpu_write(kernel_neon_busy, true);
+
+ /* Save unsaved task fpsimd state, if any: */
+ if (current->mm && !test_and_set_thread_flag(TIF_FOREIGN_FPSTATE))
+ fpsimd_save_state(&current->thread.fpsimd_state);
+
+ /* Invalidate any task state remaining in the fpsimd regs: */
+ __this_cpu_write(fpsimd_last_state, NULL);
+
+ preempt_disable();
+
+ local_bh_enable();
}
-EXPORT_SYMBOL(kernel_neon_begin_partial);
+EXPORT_SYMBOL(kernel_neon_begin);
+/*
+ * kernel_neon_end(): give the CPU FPSIMD registers back to the current task
+ *
+ * Must be called from a context in which kernel_neon_begin() was previously
+ * called, with no call to kernel_neon_end() in the meantime.
+ *
+ * The caller must not use the FPSIMD registers after this function is called,
+ * unless kernel_neon_begin() is called again in the meantime.
+ */
void kernel_neon_end(void)
{
+ bool busy;
+
if (!system_supports_fpsimd())
return;
- if (in_interrupt()) {
- struct fpsimd_partial_state *s = this_cpu_ptr(
- in_irq() ? &hardirq_fpsimdstate : &softirq_fpsimdstate);
- fpsimd_load_partial_state(s);
- } else {
- preempt_enable();
- }
+
+ busy = __this_cpu_xchg(kernel_neon_busy, false);
+ WARN_ON(!busy); /* No matching kernel_neon_begin()? */
+
+ preempt_enable();
}
EXPORT_SYMBOL(kernel_neon_end);
+#ifdef CONFIG_EFI
+
+static DEFINE_PER_CPU(struct fpsimd_state, efi_fpsimd_state);
+static DEFINE_PER_CPU(bool, efi_fpsimd_state_used);
+
+/*
+ * EFI runtime services support functions
+ *
+ * The ABI for EFI runtime services allows EFI to use FPSIMD during the call.
+ * This means that for EFI (and only for EFI), we have to assume that FPSIMD
+ * is always used rather than being an optional accelerator.
+ *
+ * These functions provide the necessary support for ensuring FPSIMD
+ * save/restore in the contexts from which EFI is used.
+ *
+ * Do not use them for any other purpose -- if tempted to do so, you are
+ * either doing something wrong or you need to propose some refactoring.
+ */
+
+/*
+ * __efi_fpsimd_begin(): prepare FPSIMD for making an EFI runtime services call
+ */
+void __efi_fpsimd_begin(void)
+{
+ if (!system_supports_fpsimd())
+ return;
+
+ WARN_ON(preemptible());
+
+ if (may_use_simd())
+ kernel_neon_begin();
+ else {
+ fpsimd_save_state(this_cpu_ptr(&efi_fpsimd_state));
+ __this_cpu_write(efi_fpsimd_state_used, true);
+ }
+}
+
+/*
+ * __efi_fpsimd_end(): clean up FPSIMD after an EFI runtime services call
+ */
+void __efi_fpsimd_end(void)
+{
+ if (!system_supports_fpsimd())
+ return;
+
+ if (__this_cpu_xchg(efi_fpsimd_state_used, false))
+ fpsimd_load_state(this_cpu_ptr(&efi_fpsimd_state));
+ else
+ kernel_neon_end();
+}
+
+#endif /* CONFIG_EFI */
+
#endif /* CONFIG_KERNEL_MODE_NEON */
#ifdef CONFIG_CPU_PM
@@ -346,4 +444,4 @@ static int __init fpsimd_init(void)
return 0;
}
-late_initcall(fpsimd_init);
+core_initcall(fpsimd_init);
diff --git a/arch/arm64/kernel/ftrace-mod.S b/arch/arm64/kernel/ftrace-mod.S
new file mode 100644
index 000000000000..00c4025be4ff
--- /dev/null
+++ b/arch/arm64/kernel/ftrace-mod.S
@@ -0,0 +1,18 @@
+/*
+ * Copyright (C) 2017 Linaro Ltd <ard.biesheuvel@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+
+ .section ".text.ftrace_trampoline", "ax"
+ .align 3
+0: .quad 0
+__ftrace_trampoline:
+ ldr x16, 0b
+ br x16
+ENDPROC(__ftrace_trampoline)
diff --git a/arch/arm64/kernel/ftrace.c b/arch/arm64/kernel/ftrace.c
index 40ad08ac569a..c13b1fca0e5b 100644
--- a/arch/arm64/kernel/ftrace.c
+++ b/arch/arm64/kernel/ftrace.c
@@ -10,10 +10,12 @@
*/
#include <linux/ftrace.h>
+#include <linux/module.h>
#include <linux/swab.h>
#include <linux/uaccess.h>
#include <asm/cacheflush.h>
+#include <asm/debug-monitors.h>
#include <asm/ftrace.h>
#include <asm/insn.h>
@@ -70,6 +72,58 @@ int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
{
unsigned long pc = rec->ip;
u32 old, new;
+ long offset = (long)pc - (long)addr;
+
+ if (offset < -SZ_128M || offset >= SZ_128M) {
+#ifdef CONFIG_ARM64_MODULE_PLTS
+ unsigned long *trampoline;
+ struct module *mod;
+
+ /*
+ * On kernels that support module PLTs, the offset between the
+ * branch instruction and its target may legally exceed the
+ * range of an ordinary relative 'bl' opcode. In this case, we
+ * need to branch via a trampoline in the module.
+ *
+ * NOTE: __module_text_address() must be called with preemption
+ * disabled, but we can rely on ftrace_lock to ensure that 'mod'
+ * retains its validity throughout the remainder of this code.
+ */
+ preempt_disable();
+ mod = __module_text_address(pc);
+ preempt_enable();
+
+ if (WARN_ON(!mod))
+ return -EINVAL;
+
+ /*
+ * There is only one ftrace trampoline per module. For now,
+ * this is not a problem since on arm64, all dynamic ftrace
+ * invocations are routed via ftrace_caller(). This will need
+ * to be revisited if support for multiple ftrace entry points
+ * is added in the future, but for now, the pr_err() below
+ * deals with a theoretical issue only.
+ */
+ trampoline = (unsigned long *)mod->arch.ftrace_trampoline;
+ if (trampoline[0] != addr) {
+ if (trampoline[0] != 0) {
+ pr_err("ftrace: far branches to multiple entry points unsupported inside a single module\n");
+ return -EINVAL;
+ }
+
+ /* point the trampoline to our ftrace entry point */
+ module_disable_ro(mod);
+ trampoline[0] = addr;
+ module_enable_ro(mod, true);
+
+ /* update trampoline before patching in the branch */
+ smp_wmb();
+ }
+ addr = (unsigned long)&trampoline[1];
+#else /* CONFIG_ARM64_MODULE_PLTS */
+ return -EINVAL;
+#endif /* CONFIG_ARM64_MODULE_PLTS */
+ }
old = aarch64_insn_gen_nop();
new = aarch64_insn_gen_branch_imm(pc, addr, AARCH64_INSN_BRANCH_LINK);
@@ -84,12 +138,55 @@ int ftrace_make_nop(struct module *mod, struct dyn_ftrace *rec,
unsigned long addr)
{
unsigned long pc = rec->ip;
- u32 old, new;
+ bool validate = true;
+ u32 old = 0, new;
+ long offset = (long)pc - (long)addr;
+
+ if (offset < -SZ_128M || offset >= SZ_128M) {
+#ifdef CONFIG_ARM64_MODULE_PLTS
+ u32 replaced;
+
+ /*
+ * 'mod' is only set at module load time, but if we end up
+ * dealing with an out-of-range condition, we can assume it
+ * is due to a module being loaded far away from the kernel.
+ */
+ if (!mod) {
+ preempt_disable();
+ mod = __module_text_address(pc);
+ preempt_enable();
+
+ if (WARN_ON(!mod))
+ return -EINVAL;
+ }
+
+ /*
+ * The instruction we are about to patch may be a branch and
+ * link instruction that was redirected via a PLT entry. In
+ * this case, the normal validation will fail, but we can at
+ * least check that we are dealing with a branch and link
+ * instruction that points into the right module.
+ */
+ if (aarch64_insn_read((void *)pc, &replaced))
+ return -EFAULT;
+
+ if (!aarch64_insn_is_bl(replaced) ||
+ !within_module(pc + aarch64_get_branch_offset(replaced),
+ mod))
+ return -EINVAL;
+
+ validate = false;
+#else /* CONFIG_ARM64_MODULE_PLTS */
+ return -EINVAL;
+#endif /* CONFIG_ARM64_MODULE_PLTS */
+ } else {
+ old = aarch64_insn_gen_branch_imm(pc, addr,
+ AARCH64_INSN_BRANCH_LINK);
+ }
- old = aarch64_insn_gen_branch_imm(pc, addr, AARCH64_INSN_BRANCH_LINK);
new = aarch64_insn_gen_nop();
- return ftrace_modify_code(pc, old, new, true);
+ return ftrace_modify_code(pc, old, new, validate);
}
void arch_ftrace_update_code(int command)
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index 973df7de7bf8..0b243ecaf7ac 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -143,8 +143,8 @@ preserve_boot_args:
dmb sy // needed before dc ivac with
// MMU off
- add x1, x0, #0x20 // 4 x 8 bytes
- b __inval_cache_range // tail call
+ mov x1, #0x20 // 4 x 8 bytes
+ b __inval_dcache_area // tail call
ENDPROC(preserve_boot_args)
/*
@@ -221,20 +221,20 @@ __create_page_tables:
* dirty cache lines being evicted.
*/
adrp x0, idmap_pg_dir
- adrp x1, swapper_pg_dir + SWAPPER_DIR_SIZE + RESERVED_TTBR0_SIZE
- bl __inval_cache_range
+ ldr x1, =(IDMAP_DIR_SIZE + SWAPPER_DIR_SIZE + RESERVED_TTBR0_SIZE)
+ bl __inval_dcache_area
/*
* Clear the idmap and swapper page tables.
*/
adrp x0, idmap_pg_dir
- adrp x6, swapper_pg_dir + SWAPPER_DIR_SIZE + RESERVED_TTBR0_SIZE
+ ldr x1, =(IDMAP_DIR_SIZE + SWAPPER_DIR_SIZE + RESERVED_TTBR0_SIZE)
1: stp xzr, xzr, [x0], #16
stp xzr, xzr, [x0], #16
stp xzr, xzr, [x0], #16
stp xzr, xzr, [x0], #16
- cmp x0, x6
- b.lo 1b
+ subs x1, x1, #64
+ b.ne 1b
mov x7, SWAPPER_MM_MMUFLAGS
@@ -307,9 +307,9 @@ __create_page_tables:
* tables again to remove any speculatively loaded cache lines.
*/
adrp x0, idmap_pg_dir
- adrp x1, swapper_pg_dir + SWAPPER_DIR_SIZE + RESERVED_TTBR0_SIZE
+ ldr x1, =(IDMAP_DIR_SIZE + SWAPPER_DIR_SIZE + RESERVED_TTBR0_SIZE)
dmb sy
- bl __inval_cache_range
+ bl __inval_dcache_area
ret x28
ENDPROC(__create_page_tables)
@@ -354,7 +354,6 @@ __primary_switched:
tst x23, ~(MIN_KIMG_ALIGN - 1) // already running randomized?
b.ne 0f
mov x0, x21 // pass FDT address in x0
- mov x1, x23 // pass modulo offset in x1
bl kaslr_early_init // parse FDT for KASLR options
cbz x0, 0f // KASLR disabled? just proceed
orr x23, x23, x0 // record KASLR offset
@@ -362,6 +361,9 @@ __primary_switched:
ret // to __primary_switch()
0:
#endif
+ add sp, sp, #16
+ mov x29, #0
+ mov x30, #0
b start_kernel
ENDPROC(__primary_switched)
@@ -382,6 +384,7 @@ ENTRY(kimage_vaddr)
* booted in EL1 or EL2 respectively.
*/
ENTRY(el2_setup)
+ msr SPsel, #1 // We want to use SP_EL{1,2}
mrs x0, CurrentEL
cmp x0, #CurrentEL_EL2
b.eq 1f
@@ -617,6 +620,7 @@ __secondary_switched:
ldr x2, [x0, #CPU_BOOT_TASK]
msr sp_el0, x2
mov x29, #0
+ mov x30, #0
b secondary_start_kernel
ENDPROC(__secondary_switched)
diff --git a/arch/arm64/kernel/hibernate.c b/arch/arm64/kernel/hibernate.c
index a44e13942d30..095d3c170f5d 100644
--- a/arch/arm64/kernel/hibernate.c
+++ b/arch/arm64/kernel/hibernate.c
@@ -330,7 +330,7 @@ static void _copy_pte(pte_t *dst_pte, pte_t *src_pte, unsigned long addr)
* read only (code, rodata). Clear the RDONLY bit from
* the temporary mappings we use during restore.
*/
- set_pte(dst_pte, pte_clear_rdonly(pte));
+ set_pte(dst_pte, pte_mkwrite(pte));
} else if (debug_pagealloc_enabled() && !pte_none(pte)) {
/*
* debug_pagealloc will removed the PTE_VALID bit if
@@ -343,7 +343,7 @@ static void _copy_pte(pte_t *dst_pte, pte_t *src_pte, unsigned long addr)
*/
BUG_ON(!pfn_valid(pte_pfn(pte)));
- set_pte(dst_pte, pte_mkpresent(pte_clear_rdonly(pte)));
+ set_pte(dst_pte, pte_mkpresent(pte_mkwrite(pte)));
}
}
diff --git a/arch/arm64/kernel/insn.c b/arch/arm64/kernel/insn.c
index b884a926a632..2718a77da165 100644
--- a/arch/arm64/kernel/insn.c
+++ b/arch/arm64/kernel/insn.c
@@ -117,7 +117,7 @@ static void __kprobes patch_unmap(int fixmap)
int __kprobes aarch64_insn_read(void *addr, u32 *insnp)
{
int ret;
- u32 val;
+ __le32 val;
ret = probe_kernel_read(&val, addr, AARCH64_INSN_SIZE);
if (!ret)
@@ -126,7 +126,7 @@ int __kprobes aarch64_insn_read(void *addr, u32 *insnp)
return ret;
}
-static int __kprobes __aarch64_insn_write(void *addr, u32 insn)
+static int __kprobes __aarch64_insn_write(void *addr, __le32 insn)
{
void *waddr = addr;
unsigned long flags = 0;
@@ -145,8 +145,7 @@ static int __kprobes __aarch64_insn_write(void *addr, u32 insn)
int __kprobes aarch64_insn_write(void *addr, u32 insn)
{
- insn = cpu_to_le32(insn);
- return __aarch64_insn_write(addr, insn);
+ return __aarch64_insn_write(addr, cpu_to_le32(insn));
}
static bool __kprobes __aarch64_insn_hotpatch_safe(u32 insn)
@@ -255,6 +254,7 @@ static int __kprobes aarch64_insn_patch_text_cb(void *arg)
return ret;
}
+static
int __kprobes aarch64_insn_patch_text_sync(void *addrs[], u32 insns[], int cnt)
{
struct aarch64_insn_patch patch = {
@@ -267,8 +267,8 @@ int __kprobes aarch64_insn_patch_text_sync(void *addrs[], u32 insns[], int cnt)
if (cnt <= 0)
return -EINVAL;
- return stop_machine(aarch64_insn_patch_text_cb, &patch,
- cpu_online_mask);
+ return stop_machine_cpuslocked(aarch64_insn_patch_text_cb, &patch,
+ cpu_online_mask);
}
int __kprobes aarch64_insn_patch_text(void *addrs[], u32 insns[], int cnt)
diff --git a/arch/arm64/kernel/irq.c b/arch/arm64/kernel/irq.c
index 2386b26c0712..713561e5bcab 100644
--- a/arch/arm64/kernel/irq.c
+++ b/arch/arm64/kernel/irq.c
@@ -23,15 +23,16 @@
#include <linux/kernel_stat.h>
#include <linux/irq.h>
+#include <linux/memory.h>
#include <linux/smp.h>
#include <linux/init.h>
#include <linux/irqchip.h>
#include <linux/seq_file.h>
+#include <linux/vmalloc.h>
unsigned long irq_err_count;
-/* irq stack only needs to be 16 byte aligned - not IRQ_STACK_SIZE aligned. */
-DEFINE_PER_CPU(unsigned long [IRQ_STACK_SIZE/sizeof(long)], irq_stack) __aligned(16);
+DEFINE_PER_CPU(unsigned long *, irq_stack_ptr);
int arch_show_interrupts(struct seq_file *p, int prec)
{
@@ -50,8 +51,43 @@ void __init set_handle_irq(void (*handle_irq)(struct pt_regs *))
handle_arch_irq = handle_irq;
}
+#ifdef CONFIG_VMAP_STACK
+static void init_irq_stacks(void)
+{
+ int cpu;
+ unsigned long *p;
+
+ for_each_possible_cpu(cpu) {
+ /*
+ * To ensure that VMAP'd stack overflow detection works
+ * correctly, the IRQ stacks need to have the same
+ * alignment as other stacks.
+ */
+ p = __vmalloc_node_range(IRQ_STACK_SIZE, THREAD_ALIGN,
+ VMALLOC_START, VMALLOC_END,
+ THREADINFO_GFP, PAGE_KERNEL,
+ 0, cpu_to_node(cpu),
+ __builtin_return_address(0));
+
+ per_cpu(irq_stack_ptr, cpu) = p;
+ }
+}
+#else
+/* irq stack only needs to be 16 byte aligned - not IRQ_STACK_SIZE aligned. */
+DEFINE_PER_CPU_ALIGNED(unsigned long [IRQ_STACK_SIZE/sizeof(long)], irq_stack);
+
+static void init_irq_stacks(void)
+{
+ int cpu;
+
+ for_each_possible_cpu(cpu)
+ per_cpu(irq_stack_ptr, cpu) = per_cpu(irq_stack, cpu);
+}
+#endif
+
void __init init_IRQ(void)
{
+ init_irq_stacks();
irqchip_init();
if (!handle_arch_irq)
panic("No interrupt controller found.");
diff --git a/arch/arm64/kernel/kaslr.c b/arch/arm64/kernel/kaslr.c
index d7e90d97f5c4..47080c49cc7e 100644
--- a/arch/arm64/kernel/kaslr.c
+++ b/arch/arm64/kernel/kaslr.c
@@ -27,7 +27,7 @@ u16 __initdata memstart_offset_seed;
static __init u64 get_kaslr_seed(void *fdt)
{
int node, len;
- u64 *prop;
+ fdt64_t *prop;
u64 ret;
node = fdt_path_offset(fdt, "/chosen");
@@ -75,7 +75,7 @@ extern void *__init __fixmap_remap_fdt(phys_addr_t dt_phys, int *size,
* containing function pointers) to be reinitialized, and zero-initialized
* .bss variables will be reset to 0.
*/
-u64 __init kaslr_early_init(u64 dt_phys, u64 modulo_offset)
+u64 __init kaslr_early_init(u64 dt_phys)
{
void *fdt;
u64 seed, offset, mask, module_range;
@@ -131,15 +131,17 @@ u64 __init kaslr_early_init(u64 dt_phys, u64 modulo_offset)
/*
* The kernel Image should not extend across a 1GB/32MB/512MB alignment
* boundary (for 4KB/16KB/64KB granule kernels, respectively). If this
- * happens, increase the KASLR offset by the size of the kernel image
- * rounded up by SWAPPER_BLOCK_SIZE.
+ * happens, round down the KASLR offset by (1 << SWAPPER_TABLE_SHIFT).
+ *
+ * NOTE: The references to _text and _end below will already take the
+ * modulo offset (the physical displacement modulo 2 MB) into
+ * account, given that the physical placement is controlled by
+ * the loader, and will not change as a result of the virtual
+ * mapping we choose.
*/
- if ((((u64)_text + offset + modulo_offset) >> SWAPPER_TABLE_SHIFT) !=
- (((u64)_end + offset + modulo_offset) >> SWAPPER_TABLE_SHIFT)) {
- u64 kimg_sz = _end - _text;
- offset = (offset + round_up(kimg_sz, SWAPPER_BLOCK_SIZE))
- & mask;
- }
+ if ((((u64)_text + offset) >> SWAPPER_TABLE_SHIFT) !=
+ (((u64)_end + offset) >> SWAPPER_TABLE_SHIFT))
+ offset = round_down(offset, 1 << SWAPPER_TABLE_SHIFT);
if (IS_ENABLED(CONFIG_KASAN))
/*
diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c
index 481f54a866c5..11121f608eb5 100644
--- a/arch/arm64/kernel/machine_kexec.c
+++ b/arch/arm64/kernel/machine_kexec.c
@@ -252,7 +252,7 @@ void machine_crash_shutdown(struct pt_regs *regs)
local_irq_disable();
/* shutdown non-crashing cpus */
- smp_send_crash_stop();
+ crash_smp_send_stop();
/* for crashing cpu */
crash_save_cpu(regs, smp_processor_id());
diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
index f035ff6fb223..f469e0435903 100644
--- a/arch/arm64/kernel/module.c
+++ b/arch/arm64/kernel/module.c
@@ -74,7 +74,7 @@ enum aarch64_reloc_op {
RELOC_OP_PAGE,
};
-static u64 do_reloc(enum aarch64_reloc_op reloc_op, void *place, u64 val)
+static u64 do_reloc(enum aarch64_reloc_op reloc_op, __le32 *place, u64 val)
{
switch (reloc_op) {
case RELOC_OP_ABS:
@@ -121,12 +121,12 @@ enum aarch64_insn_movw_imm_type {
AARCH64_INSN_IMM_MOVKZ,
};
-static int reloc_insn_movw(enum aarch64_reloc_op op, void *place, u64 val,
+static int reloc_insn_movw(enum aarch64_reloc_op op, __le32 *place, u64 val,
int lsb, enum aarch64_insn_movw_imm_type imm_type)
{
u64 imm;
s64 sval;
- u32 insn = le32_to_cpu(*(u32 *)place);
+ u32 insn = le32_to_cpu(*place);
sval = do_reloc(op, place, val);
imm = sval >> lsb;
@@ -154,7 +154,7 @@ static int reloc_insn_movw(enum aarch64_reloc_op op, void *place, u64 val,
/* Update the instruction with the new encoding. */
insn = aarch64_insn_encode_immediate(AARCH64_INSN_IMM_16, insn, imm);
- *(u32 *)place = cpu_to_le32(insn);
+ *place = cpu_to_le32(insn);
if (imm > U16_MAX)
return -ERANGE;
@@ -162,12 +162,12 @@ static int reloc_insn_movw(enum aarch64_reloc_op op, void *place, u64 val,
return 0;
}
-static int reloc_insn_imm(enum aarch64_reloc_op op, void *place, u64 val,
+static int reloc_insn_imm(enum aarch64_reloc_op op, __le32 *place, u64 val,
int lsb, int len, enum aarch64_insn_imm_type imm_type)
{
u64 imm, imm_mask;
s64 sval;
- u32 insn = le32_to_cpu(*(u32 *)place);
+ u32 insn = le32_to_cpu(*place);
/* Calculate the relocation value. */
sval = do_reloc(op, place, val);
@@ -179,7 +179,7 @@ static int reloc_insn_imm(enum aarch64_reloc_op op, void *place, u64 val,
/* Update the instruction's immediate field. */
insn = aarch64_insn_encode_immediate(imm_type, insn, imm);
- *(u32 *)place = cpu_to_le32(insn);
+ *place = cpu_to_le32(insn);
/*
* Extract the upper value bits (including the sign bit) and
@@ -420,8 +420,12 @@ int module_finalize(const Elf_Ehdr *hdr,
for (s = sechdrs, se = sechdrs + hdr->e_shnum; s < se; s++) {
if (strcmp(".altinstructions", secstrs + s->sh_name) == 0) {
apply_alternatives((void *)s->sh_addr, s->sh_size);
- return 0;
}
+#ifdef CONFIG_ARM64_MODULE_PLTS
+ if (IS_ENABLED(CONFIG_DYNAMIC_FTRACE) &&
+ !strcmp(".text.ftrace_trampoline", secstrs + s->sh_name))
+ me->arch.ftrace_trampoline = (void *)s->sh_addr;
+#endif
}
return 0;
diff --git a/arch/arm64/kernel/pci.c b/arch/arm64/kernel/pci.c
index c7e3e6387a49..0e2ea1c78542 100644
--- a/arch/arm64/kernel/pci.c
+++ b/arch/arm64/kernel/pci.c
@@ -22,37 +22,18 @@
#include <linux/pci-ecam.h>
#include <linux/slab.h>
-/*
- * Called after each bus is probed, but before its children are examined
- */
-void pcibios_fixup_bus(struct pci_bus *bus)
-{
- /* nothing to do, expected to be removed in the future */
-}
-
-/*
- * We don't have to worry about legacy ISA devices, so nothing to do here
- */
-resource_size_t pcibios_align_resource(void *data, const struct resource *res,
- resource_size_t size, resource_size_t align)
-{
- return res->start;
-}
-
+#ifdef CONFIG_ACPI
/*
* Try to assign the IRQ number when probing a new device
*/
int pcibios_alloc_irq(struct pci_dev *dev)
{
- if (acpi_disabled)
- dev->irq = of_irq_parse_and_map_pci(dev, 0, 0);
-#ifdef CONFIG_ACPI
- else
- return acpi_pci_irq_enable(dev);
-#endif
+ if (!acpi_disabled)
+ acpi_pci_irq_enable(dev);
return 0;
}
+#endif
/*
* raw_pci_read/write - Platform-specific PCI config space access.
@@ -108,7 +89,10 @@ int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge)
if (!acpi_disabled) {
struct pci_config_window *cfg = bridge->bus->sysdata;
struct acpi_device *adev = to_acpi_device(cfg->parent);
+ struct device *bus_dev = &bridge->bus->dev;
+
ACPI_COMPANION_SET(&bridge->dev, adev);
+ set_dev_node(bus_dev, acpi_get_node(acpi_device_handle(adev)));
}
return 0;
diff --git a/arch/arm64/kernel/perf_callchain.c b/arch/arm64/kernel/perf_callchain.c
index 713ca824f266..bcafd7dcfe8b 100644
--- a/arch/arm64/kernel/perf_callchain.c
+++ b/arch/arm64/kernel/perf_callchain.c
@@ -162,7 +162,6 @@ void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
}
frame.fp = regs->regs[29];
- frame.sp = regs->sp;
frame.pc = regs->pc;
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
frame.graph = current->curr_ret_stack;
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index 83a1b1ad189f..9eaef51f83ff 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -202,55 +202,6 @@ static const unsigned armv8_pmuv3_perf_map[PERF_COUNT_HW_MAX] = {
[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = ARMV8_PMUV3_PERFCTR_STALL_BACKEND,
};
-/* ARM Cortex-A53 HW events mapping. */
-static const unsigned armv8_a53_perf_map[PERF_COUNT_HW_MAX] = {
- PERF_MAP_ALL_UNSUPPORTED,
- [PERF_COUNT_HW_CPU_CYCLES] = ARMV8_PMUV3_PERFCTR_CPU_CYCLES,
- [PERF_COUNT_HW_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_INST_RETIRED,
- [PERF_COUNT_HW_CACHE_REFERENCES] = ARMV8_PMUV3_PERFCTR_L1D_CACHE,
- [PERF_COUNT_HW_CACHE_MISSES] = ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL,
- [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_PC_WRITE_RETIRED,
- [PERF_COUNT_HW_BRANCH_MISSES] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED,
- [PERF_COUNT_HW_BUS_CYCLES] = ARMV8_PMUV3_PERFCTR_BUS_CYCLES,
-};
-
-/* ARM Cortex-A57 and Cortex-A72 events mapping. */
-static const unsigned armv8_a57_perf_map[PERF_COUNT_HW_MAX] = {
- PERF_MAP_ALL_UNSUPPORTED,
- [PERF_COUNT_HW_CPU_CYCLES] = ARMV8_PMUV3_PERFCTR_CPU_CYCLES,
- [PERF_COUNT_HW_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_INST_RETIRED,
- [PERF_COUNT_HW_CACHE_REFERENCES] = ARMV8_PMUV3_PERFCTR_L1D_CACHE,
- [PERF_COUNT_HW_CACHE_MISSES] = ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL,
- [PERF_COUNT_HW_BRANCH_MISSES] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED,
- [PERF_COUNT_HW_BUS_CYCLES] = ARMV8_PMUV3_PERFCTR_BUS_CYCLES,
-};
-
-static const unsigned armv8_thunder_perf_map[PERF_COUNT_HW_MAX] = {
- PERF_MAP_ALL_UNSUPPORTED,
- [PERF_COUNT_HW_CPU_CYCLES] = ARMV8_PMUV3_PERFCTR_CPU_CYCLES,
- [PERF_COUNT_HW_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_INST_RETIRED,
- [PERF_COUNT_HW_CACHE_REFERENCES] = ARMV8_PMUV3_PERFCTR_L1D_CACHE,
- [PERF_COUNT_HW_CACHE_MISSES] = ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL,
- [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_PC_WRITE_RETIRED,
- [PERF_COUNT_HW_BRANCH_MISSES] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED,
- [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = ARMV8_PMUV3_PERFCTR_STALL_FRONTEND,
- [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = ARMV8_PMUV3_PERFCTR_STALL_BACKEND,
-};
-
-/* Broadcom Vulcan events mapping */
-static const unsigned armv8_vulcan_perf_map[PERF_COUNT_HW_MAX] = {
- PERF_MAP_ALL_UNSUPPORTED,
- [PERF_COUNT_HW_CPU_CYCLES] = ARMV8_PMUV3_PERFCTR_CPU_CYCLES,
- [PERF_COUNT_HW_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_INST_RETIRED,
- [PERF_COUNT_HW_CACHE_REFERENCES] = ARMV8_PMUV3_PERFCTR_L1D_CACHE,
- [PERF_COUNT_HW_CACHE_MISSES] = ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL,
- [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_BR_RETIRED,
- [PERF_COUNT_HW_BRANCH_MISSES] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED,
- [PERF_COUNT_HW_BUS_CYCLES] = ARMV8_PMUV3_PERFCTR_BUS_CYCLES,
- [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = ARMV8_PMUV3_PERFCTR_STALL_FRONTEND,
- [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = ARMV8_PMUV3_PERFCTR_STALL_BACKEND,
-};
-
static const unsigned armv8_pmuv3_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[PERF_COUNT_HW_CACHE_OP_MAX]
[PERF_COUNT_HW_CACHE_RESULT_MAX] = {
@@ -281,27 +232,10 @@ static const unsigned armv8_a53_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[PERF_COUNT_HW_CACHE_RESULT_MAX] = {
PERF_CACHE_MAP_ALL_UNSUPPORTED,
- [C(L1D)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1D_CACHE,
- [C(L1D)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL,
- [C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1D_CACHE,
- [C(L1D)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL,
[C(L1D)][C(OP_PREFETCH)][C(RESULT_MISS)] = ARMV8_A53_PERFCTR_PREF_LINEFILL,
- [C(L1I)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1I_CACHE,
- [C(L1I)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1I_CACHE_REFILL,
-
- [C(LL)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L2D_CACHE,
- [C(LL)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L2D_CACHE_REFILL,
- [C(LL)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L2D_CACHE,
- [C(LL)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L2D_CACHE_REFILL,
-
- [C(DTLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1D_TLB_REFILL,
- [C(ITLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1I_TLB_REFILL,
-
- [C(BPU)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_BR_PRED,
- [C(BPU)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED,
- [C(BPU)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_BR_PRED,
- [C(BPU)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED,
+ [C(NODE)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD,
+ [C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR,
};
static const unsigned armv8_a57_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
@@ -314,18 +248,26 @@ static const unsigned armv8_a57_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WR,
[C(L1D)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_WR,
- [C(L1I)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1I_CACHE,
- [C(L1I)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1I_CACHE_REFILL,
-
[C(DTLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_RD,
[C(DTLB)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_WR,
- [C(ITLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1I_TLB_REFILL,
+ [C(NODE)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD,
+ [C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR,
+};
- [C(BPU)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_BR_PRED,
- [C(BPU)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED,
- [C(BPU)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_BR_PRED,
- [C(BPU)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED,
+static const unsigned armv8_a73_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
+ PERF_CACHE_MAP_ALL_UNSUPPORTED,
+
+ [C(L1D)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_RD,
+ [C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WR,
+
+ [C(NODE)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD,
+ [C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR,
+
+ [C(NODE)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD,
+ [C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR,
};
static const unsigned armv8_thunder_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
@@ -340,8 +282,6 @@ static const unsigned armv8_thunder_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[C(L1D)][C(OP_PREFETCH)][C(RESULT_ACCESS)] = ARMV8_THUNDER_PERFCTR_L1D_CACHE_PREF_ACCESS,
[C(L1D)][C(OP_PREFETCH)][C(RESULT_MISS)] = ARMV8_THUNDER_PERFCTR_L1D_CACHE_PREF_MISS,
- [C(L1I)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1I_CACHE,
- [C(L1I)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1I_CACHE_REFILL,
[C(L1I)][C(OP_PREFETCH)][C(RESULT_ACCESS)] = ARMV8_THUNDER_PERFCTR_L1I_CACHE_PREF_ACCESS,
[C(L1I)][C(OP_PREFETCH)][C(RESULT_MISS)] = ARMV8_THUNDER_PERFCTR_L1I_CACHE_PREF_MISS,
@@ -349,13 +289,6 @@ static const unsigned armv8_thunder_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[C(DTLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_RD,
[C(DTLB)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_WR,
[C(DTLB)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_WR,
-
- [C(ITLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1I_TLB_REFILL,
-
- [C(BPU)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_BR_PRED,
- [C(BPU)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED,
- [C(BPU)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_BR_PRED,
- [C(BPU)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED,
};
static const unsigned armv8_vulcan_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
@@ -368,22 +301,11 @@ static const unsigned armv8_vulcan_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WR,
[C(L1D)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_WR,
- [C(L1I)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1I_CACHE,
- [C(L1I)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1I_CACHE_REFILL,
-
- [C(ITLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1I_TLB_REFILL,
- [C(ITLB)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1I_TLB,
-
[C(DTLB)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_RD,
[C(DTLB)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_WR,
[C(DTLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_RD,
[C(DTLB)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_WR,
- [C(BPU)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_BR_PRED,
- [C(BPU)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED,
- [C(BPU)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_BR_PRED,
- [C(BPU)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED,
-
[C(NODE)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD,
[C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR,
};
@@ -529,7 +451,7 @@ static struct attribute_group armv8_pmuv3_events_attr_group = {
.is_visible = armv8pmu_event_attr_is_visible,
};
-PMU_FORMAT_ATTR(event, "config:0-9");
+PMU_FORMAT_ATTR(event, "config:0-15");
static struct attribute *armv8_pmuv3_format_attrs[] = {
&format_attr_event.attr,
@@ -846,17 +768,14 @@ static int armv8pmu_get_event_idx(struct pmu_hw_events *cpuc,
struct hw_perf_event *hwc = &event->hw;
unsigned long evtype = hwc->config_base & ARMV8_PMU_EVTYPE_EVENT;
- /* Always place a cycle counter into the cycle counter. */
+ /* Always prefer to place a cycle counter into the cycle counter. */
if (evtype == ARMV8_PMUV3_PERFCTR_CPU_CYCLES) {
- if (test_and_set_bit(ARMV8_IDX_CYCLE_COUNTER, cpuc->used_mask))
- return -EAGAIN;
-
- return ARMV8_IDX_CYCLE_COUNTER;
+ if (!test_and_set_bit(ARMV8_IDX_CYCLE_COUNTER, cpuc->used_mask))
+ return ARMV8_IDX_CYCLE_COUNTER;
}
/*
- * For anything other than a cycle counter, try and use
- * the events counters
+ * Otherwise use events counters
*/
for (idx = ARMV8_IDX_COUNTER0; idx < cpu_pmu->num_events; ++idx) {
if (!test_and_set_bit(idx, cpuc->used_mask))
@@ -924,7 +843,13 @@ static void armv8pmu_reset(void *info)
ARMV8_PMU_PMCR_LC);
}
-static int armv8_pmuv3_map_event(struct perf_event *event)
+static int __armv8_pmuv3_map_event(struct perf_event *event,
+ const unsigned (*extra_event_map)
+ [PERF_COUNT_HW_MAX],
+ const unsigned (*extra_cache_map)
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX])
{
int hw_event_id;
struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
@@ -932,44 +857,47 @@ static int armv8_pmuv3_map_event(struct perf_event *event)
hw_event_id = armpmu_map_event(event, &armv8_pmuv3_perf_map,
&armv8_pmuv3_perf_cache_map,
ARMV8_PMU_EVTYPE_EVENT);
- if (hw_event_id < 0)
- return hw_event_id;
- /* disable micro/arch events not supported by this PMU */
- if ((hw_event_id < ARMV8_PMUV3_MAX_COMMON_EVENTS) &&
- !test_bit(hw_event_id, armpmu->pmceid_bitmap)) {
- return -EOPNOTSUPP;
+ /* Onl expose micro/arch events supported by this PMU */
+ if ((hw_event_id > 0) && (hw_event_id < ARMV8_PMUV3_MAX_COMMON_EVENTS)
+ && test_bit(hw_event_id, armpmu->pmceid_bitmap)) {
+ return hw_event_id;
}
- return hw_event_id;
+ return armpmu_map_event(event, extra_event_map, extra_cache_map,
+ ARMV8_PMU_EVTYPE_EVENT);
+}
+
+static int armv8_pmuv3_map_event(struct perf_event *event)
+{
+ return __armv8_pmuv3_map_event(event, NULL, NULL);
}
static int armv8_a53_map_event(struct perf_event *event)
{
- return armpmu_map_event(event, &armv8_a53_perf_map,
- &armv8_a53_perf_cache_map,
- ARMV8_PMU_EVTYPE_EVENT);
+ return __armv8_pmuv3_map_event(event, NULL, &armv8_a53_perf_cache_map);
}
static int armv8_a57_map_event(struct perf_event *event)
{
- return armpmu_map_event(event, &armv8_a57_perf_map,
- &armv8_a57_perf_cache_map,
- ARMV8_PMU_EVTYPE_EVENT);
+ return __armv8_pmuv3_map_event(event, NULL, &armv8_a57_perf_cache_map);
+}
+
+static int armv8_a73_map_event(struct perf_event *event)
+{
+ return __armv8_pmuv3_map_event(event, NULL, &armv8_a73_perf_cache_map);
}
static int armv8_thunder_map_event(struct perf_event *event)
{
- return armpmu_map_event(event, &armv8_thunder_perf_map,
- &armv8_thunder_perf_cache_map,
- ARMV8_PMU_EVTYPE_EVENT);
+ return __armv8_pmuv3_map_event(event, NULL,
+ &armv8_thunder_perf_cache_map);
}
static int armv8_vulcan_map_event(struct perf_event *event)
{
- return armpmu_map_event(event, &armv8_vulcan_perf_map,
- &armv8_vulcan_perf_cache_map,
- ARMV8_PMU_EVTYPE_EVENT);
+ return __armv8_pmuv3_map_event(event, NULL,
+ &armv8_vulcan_perf_cache_map);
}
struct armv8pmu_probe_info {
@@ -1062,6 +990,22 @@ static int armv8_pmuv3_init(struct arm_pmu *cpu_pmu)
return 0;
}
+static int armv8_a35_pmu_init(struct arm_pmu *cpu_pmu)
+{
+ int ret = armv8_pmu_init(cpu_pmu);
+ if (ret)
+ return ret;
+
+ cpu_pmu->name = "armv8_cortex_a35";
+ cpu_pmu->map_event = armv8_a53_map_event;
+ cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] =
+ &armv8_pmuv3_events_attr_group;
+ cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] =
+ &armv8_pmuv3_format_attr_group;
+
+ return 0;
+}
+
static int armv8_a53_pmu_init(struct arm_pmu *cpu_pmu)
{
int ret = armv8_pmu_init(cpu_pmu);
@@ -1110,6 +1054,22 @@ static int armv8_a72_pmu_init(struct arm_pmu *cpu_pmu)
return 0;
}
+static int armv8_a73_pmu_init(struct arm_pmu *cpu_pmu)
+{
+ int ret = armv8_pmu_init(cpu_pmu);
+ if (ret)
+ return ret;
+
+ cpu_pmu->name = "armv8_cortex_a73";
+ cpu_pmu->map_event = armv8_a73_map_event;
+ cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] =
+ &armv8_pmuv3_events_attr_group;
+ cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] =
+ &armv8_pmuv3_format_attr_group;
+
+ return 0;
+}
+
static int armv8_thunder_pmu_init(struct arm_pmu *cpu_pmu)
{
int ret = armv8_pmu_init(cpu_pmu);
@@ -1144,9 +1104,11 @@ static int armv8_vulcan_pmu_init(struct arm_pmu *cpu_pmu)
static const struct of_device_id armv8_pmu_of_device_ids[] = {
{.compatible = "arm,armv8-pmuv3", .data = armv8_pmuv3_init},
+ {.compatible = "arm,cortex-a35-pmu", .data = armv8_a35_pmu_init},
{.compatible = "arm,cortex-a53-pmu", .data = armv8_a53_pmu_init},
{.compatible = "arm,cortex-a57-pmu", .data = armv8_a57_pmu_init},
{.compatible = "arm,cortex-a72-pmu", .data = armv8_a72_pmu_init},
+ {.compatible = "arm,cortex-a73-pmu", .data = armv8_a73_pmu_init},
{.compatible = "cavium,thunder-pmu", .data = armv8_thunder_pmu_init},
{.compatible = "brcm,vulcan-pmu", .data = armv8_vulcan_pmu_init},
{},
diff --git a/arch/arm64/kernel/probes/kprobes.c b/arch/arm64/kernel/probes/kprobes.c
index c5c45942fb6e..d849d9804011 100644
--- a/arch/arm64/kernel/probes/kprobes.c
+++ b/arch/arm64/kernel/probes/kprobes.c
@@ -522,9 +522,9 @@ int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
pr_err("current sp %lx does not match saved sp %lx\n",
orig_sp, stack_addr);
pr_err("Saved registers for jprobe %p\n", jp);
- show_regs(saved_regs);
+ __show_regs(saved_regs);
pr_err("Current registers\n");
- show_regs(regs);
+ __show_regs(regs);
BUG();
}
unpause_graph_tracing();
diff --git a/arch/arm64/kernel/probes/uprobes.c b/arch/arm64/kernel/probes/uprobes.c
index 26c998534dca..636ca0119c0e 100644
--- a/arch/arm64/kernel/probes/uprobes.c
+++ b/arch/arm64/kernel/probes/uprobes.c
@@ -40,7 +40,7 @@ int arch_uprobe_analyze_insn(struct arch_uprobe *auprobe, struct mm_struct *mm,
probe_opcode_t insn;
/* TODO: Currently we do not support AARCH32 instruction probing */
- if (test_bit(TIF_32BIT, &mm->context.flags))
+ if (mm->context.flags & MMCF_AARCH32)
return -ENOTSUPP;
else if (!IS_ALIGNED(addr, AARCH64_INSN_SIZE))
return -EINVAL;
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index ae2a835898d7..2dc0f8482210 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -210,6 +210,7 @@ void __show_regs(struct pt_regs *regs)
void show_regs(struct pt_regs * regs)
{
__show_regs(regs);
+ dump_backtrace(regs, NULL);
}
static void tls_thread_flush(void)
@@ -297,12 +298,16 @@ int copy_thread(unsigned long clone_flags, unsigned long stack_start,
return 0;
}
+void tls_preserve_current_state(void)
+{
+ *task_user_tls(current) = read_sysreg(tpidr_el0);
+}
+
static void tls_thread_switch(struct task_struct *next)
{
unsigned long tpidr, tpidrro;
- tpidr = read_sysreg(tpidr_el0);
- *task_user_tls(current) = tpidr;
+ tls_preserve_current_state();
tpidr = *task_user_tls(next);
tpidrro = is_compat_thread(task_thread_info(next)) ?
@@ -355,6 +360,8 @@ __notrace_funcgraph struct task_struct *__switch_to(struct task_struct *prev,
/*
* Complete any pending TLB or cache maintenance on this CPU in case
* the thread migrates to a different CPU.
+ * This full barrier is also required by the membarrier system
+ * call.
*/
dsb(ish);
@@ -377,15 +384,12 @@ unsigned long get_wchan(struct task_struct *p)
return 0;
frame.fp = thread_saved_fp(p);
- frame.sp = thread_saved_sp(p);
frame.pc = thread_saved_pc(p);
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
frame.graph = p->curr_ret_stack;
#endif
do {
- if (frame.sp < stack_page ||
- frame.sp >= stack_page + THREAD_SIZE ||
- unwind_frame(p, &frame))
+ if (unwind_frame(p, &frame))
goto out;
if (!in_sched_functions(frame.pc)) {
ret = frame.pc;
@@ -412,3 +416,11 @@ unsigned long arch_randomize_brk(struct mm_struct *mm)
else
return randomize_page(mm->brk, SZ_1G);
}
+
+/*
+ * Called from setup_new_exec() after (COMPAT_)SET_PERSONALITY.
+ */
+void arch_setup_new_exec(void)
+{
+ current->mm->context.flags = is_compat_task() ? MMCF_AARCH32 : 0;
+}
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index c142459a88f3..9cbb6123208f 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -42,6 +42,7 @@
#include <asm/compat.h>
#include <asm/debug-monitors.h>
#include <asm/pgtable.h>
+#include <asm/stacktrace.h>
#include <asm/syscall.h>
#include <asm/traps.h>
#include <asm/system_misc.h>
@@ -127,7 +128,7 @@ static bool regs_within_kernel_stack(struct pt_regs *regs, unsigned long addr)
{
return ((addr & ~(THREAD_SIZE - 1)) ==
(kernel_stack_pointer(regs) & ~(THREAD_SIZE - 1))) ||
- on_irq_stack(addr, raw_smp_processor_id());
+ on_irq_stack(addr);
}
/**
@@ -623,6 +624,10 @@ static int fpr_get(struct task_struct *target, const struct user_regset *regset,
{
struct user_fpsimd_state *uregs;
uregs = &target->thread.fpsimd_state.user_fpsimd;
+
+ if (target == current)
+ fpsimd_preserve_current_state();
+
return user_regset_copyout(&pos, &count, &kbuf, &ubuf, uregs, 0, -1);
}
@@ -648,6 +653,10 @@ static int tls_get(struct task_struct *target, const struct user_regset *regset,
void *kbuf, void __user *ubuf)
{
unsigned long *tls = &target->thread.tp_value;
+
+ if (target == current)
+ tls_preserve_current_state();
+
return user_regset_copyout(&pos, &count, &kbuf, &ubuf, tls, 0, -1);
}
@@ -894,21 +903,27 @@ static int compat_vfp_get(struct task_struct *target,
{
struct user_fpsimd_state *uregs;
compat_ulong_t fpscr;
- int ret;
+ int ret, vregs_end_pos;
uregs = &target->thread.fpsimd_state.user_fpsimd;
+ if (target == current)
+ fpsimd_preserve_current_state();
+
/*
* The VFP registers are packed into the fpsimd_state, so they all sit
* nicely together for us. We just need to create the fpscr separately.
*/
- ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, uregs, 0,
- VFP_STATE_SIZE - sizeof(compat_ulong_t));
+ vregs_end_pos = VFP_STATE_SIZE - sizeof(compat_ulong_t);
+ ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, uregs,
+ 0, vregs_end_pos);
if (count && !ret) {
fpscr = (uregs->fpsr & VFP_FPSCR_STAT_MASK) |
(uregs->fpcr & VFP_FPSCR_CTRL_MASK);
- ret = put_user(fpscr, (compat_ulong_t *)ubuf);
+
+ ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, &fpscr,
+ vregs_end_pos, VFP_STATE_SIZE);
}
return ret;
@@ -921,20 +936,21 @@ static int compat_vfp_set(struct task_struct *target,
{
struct user_fpsimd_state *uregs;
compat_ulong_t fpscr;
- int ret;
-
- if (pos + count > VFP_STATE_SIZE)
- return -EIO;
+ int ret, vregs_end_pos;
uregs = &target->thread.fpsimd_state.user_fpsimd;
+ vregs_end_pos = VFP_STATE_SIZE - sizeof(compat_ulong_t);
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, uregs, 0,
- VFP_STATE_SIZE - sizeof(compat_ulong_t));
+ vregs_end_pos);
if (count && !ret) {
- ret = get_user(fpscr, (compat_ulong_t *)ubuf);
- uregs->fpsr = fpscr & VFP_FPSCR_STAT_MASK;
- uregs->fpcr = fpscr & VFP_FPSCR_CTRL_MASK;
+ ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &fpscr,
+ vregs_end_pos, VFP_STATE_SIZE);
+ if (!ret) {
+ uregs->fpsr = fpscr & VFP_FPSCR_STAT_MASK;
+ uregs->fpcr = fpscr & VFP_FPSCR_CTRL_MASK;
+ }
}
fpsimd_flush_task_state(target);
@@ -1348,7 +1364,7 @@ static void tracehook_report_syscall(struct pt_regs *regs,
if (dir == PTRACE_SYSCALL_EXIT)
tracehook_report_syscall_exit(regs, 0);
else if (tracehook_report_syscall_entry(regs))
- regs->syscallno = ~0UL;
+ forget_syscall(regs);
regs->regs[regno] = saved_reg;
}
diff --git a/arch/arm64/kernel/return_address.c b/arch/arm64/kernel/return_address.c
index 12a87f2600f2..933adbc0f654 100644
--- a/arch/arm64/kernel/return_address.c
+++ b/arch/arm64/kernel/return_address.c
@@ -42,7 +42,6 @@ void *return_address(unsigned int level)
data.addr = NULL;
frame.fp = (unsigned long)__builtin_frame_address(0);
- frame.sp = current_stack_pointer;
frame.pc = (unsigned long)return_address; /* dummy */
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
frame.graph = current->curr_ret_stack;
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 2c822ef94f34..d4b740538ad5 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -194,6 +194,9 @@ static void __init setup_machine_fdt(phys_addr_t dt_phys)
}
name = of_flat_dt_get_machine_name();
+ if (!name)
+ return;
+
pr_info("Machine model: %s\n", name);
dump_stack_set_arch_desc("%s (DT)", name);
}
diff --git a/arch/arm64/kernel/signal.c b/arch/arm64/kernel/signal.c
index c7b6de62f9d3..0bdc96c61bc0 100644
--- a/arch/arm64/kernel/signal.c
+++ b/arch/arm64/kernel/signal.c
@@ -19,12 +19,17 @@
#include <linux/compat.h>
#include <linux/errno.h>
+#include <linux/kernel.h>
#include <linux/signal.h>
#include <linux/personality.h>
#include <linux/freezer.h>
+#include <linux/stddef.h>
#include <linux/uaccess.h>
+#include <linux/sizes.h>
+#include <linux/string.h>
#include <linux/tracehook.h>
#include <linux/ratelimit.h>
+#include <linux/syscalls.h>
#include <asm/debug-monitors.h>
#include <asm/elf.h>
@@ -32,6 +37,7 @@
#include <asm/ucontext.h>
#include <asm/unistd.h>
#include <asm/fpsimd.h>
+#include <asm/ptrace.h>
#include <asm/signal32.h>
#include <asm/vdso.h>
@@ -41,10 +47,133 @@
struct rt_sigframe {
struct siginfo info;
struct ucontext uc;
+};
+
+struct frame_record {
u64 fp;
u64 lr;
};
+struct rt_sigframe_user_layout {
+ struct rt_sigframe __user *sigframe;
+ struct frame_record __user *next_frame;
+
+ unsigned long size; /* size of allocated sigframe data */
+ unsigned long limit; /* largest allowed size */
+
+ unsigned long fpsimd_offset;
+ unsigned long esr_offset;
+ unsigned long extra_offset;
+ unsigned long end_offset;
+};
+
+#define BASE_SIGFRAME_SIZE round_up(sizeof(struct rt_sigframe), 16)
+#define TERMINATOR_SIZE round_up(sizeof(struct _aarch64_ctx), 16)
+#define EXTRA_CONTEXT_SIZE round_up(sizeof(struct extra_context), 16)
+
+static void init_user_layout(struct rt_sigframe_user_layout *user)
+{
+ const size_t reserved_size =
+ sizeof(user->sigframe->uc.uc_mcontext.__reserved);
+
+ memset(user, 0, sizeof(*user));
+ user->size = offsetof(struct rt_sigframe, uc.uc_mcontext.__reserved);
+
+ user->limit = user->size + reserved_size;
+
+ user->limit -= TERMINATOR_SIZE;
+ user->limit -= EXTRA_CONTEXT_SIZE;
+ /* Reserve space for extension and terminator ^ */
+}
+
+static size_t sigframe_size(struct rt_sigframe_user_layout const *user)
+{
+ return round_up(max(user->size, sizeof(struct rt_sigframe)), 16);
+}
+
+/*
+ * Sanity limit on the approximate maximum size of signal frame we'll
+ * try to generate. Stack alignment padding and the frame record are
+ * not taken into account. This limit is not a guarantee and is
+ * NOT ABI.
+ */
+#define SIGFRAME_MAXSZ SZ_64K
+
+static int __sigframe_alloc(struct rt_sigframe_user_layout *user,
+ unsigned long *offset, size_t size, bool extend)
+{
+ size_t padded_size = round_up(size, 16);
+
+ if (padded_size > user->limit - user->size &&
+ !user->extra_offset &&
+ extend) {
+ int ret;
+
+ user->limit += EXTRA_CONTEXT_SIZE;
+ ret = __sigframe_alloc(user, &user->extra_offset,
+ sizeof(struct extra_context), false);
+ if (ret) {
+ user->limit -= EXTRA_CONTEXT_SIZE;
+ return ret;
+ }
+
+ /* Reserve space for the __reserved[] terminator */
+ user->size += TERMINATOR_SIZE;
+
+ /*
+ * Allow expansion up to SIGFRAME_MAXSZ, ensuring space for
+ * the terminator:
+ */
+ user->limit = SIGFRAME_MAXSZ - TERMINATOR_SIZE;
+ }
+
+ /* Still not enough space? Bad luck! */
+ if (padded_size > user->limit - user->size)
+ return -ENOMEM;
+
+ *offset = user->size;
+ user->size += padded_size;
+
+ return 0;
+}
+
+/*
+ * Allocate space for an optional record of <size> bytes in the user
+ * signal frame. The offset from the signal frame base address to the
+ * allocated block is assigned to *offset.
+ */
+static int sigframe_alloc(struct rt_sigframe_user_layout *user,
+ unsigned long *offset, size_t size)
+{
+ return __sigframe_alloc(user, offset, size, true);
+}
+
+/* Allocate the null terminator record and prevent further allocations */
+static int sigframe_alloc_end(struct rt_sigframe_user_layout *user)
+{
+ int ret;
+
+ /* Un-reserve the space reserved for the terminator: */
+ user->limit += TERMINATOR_SIZE;
+
+ ret = sigframe_alloc(user, &user->end_offset,
+ sizeof(struct _aarch64_ctx));
+ if (ret)
+ return ret;
+
+ /* Prevent further allocation: */
+ user->limit = user->size;
+ return 0;
+}
+
+static void __user *apply_user_offset(
+ struct rt_sigframe_user_layout const *user, unsigned long offset)
+{
+ char __user *base = (char __user *)user->sigframe;
+
+ return base + offset;
+}
+
static int preserve_fpsimd_context(struct fpsimd_context __user *ctx)
{
struct fpsimd_state *fpsimd = &current->thread.fpsimd_state;
@@ -92,12 +221,159 @@ static int restore_fpsimd_context(struct fpsimd_context __user *ctx)
return err ? -EFAULT : 0;
}
+struct user_ctxs {
+ struct fpsimd_context __user *fpsimd;
+};
+
+static int parse_user_sigframe(struct user_ctxs *user,
+ struct rt_sigframe __user *sf)
+{
+ struct sigcontext __user *const sc = &sf->uc.uc_mcontext;
+ struct _aarch64_ctx __user *head;
+ char __user *base = (char __user *)&sc->__reserved;
+ size_t offset = 0;
+ size_t limit = sizeof(sc->__reserved);
+ bool have_extra_context = false;
+ char const __user *const sfp = (char const __user *)sf;
+
+ user->fpsimd = NULL;
+
+ if (!IS_ALIGNED((unsigned long)base, 16))
+ goto invalid;
+
+ while (1) {
+ int err = 0;
+ u32 magic, size;
+ char const __user *userp;
+ struct extra_context const __user *extra;
+ u64 extra_datap;
+ u32 extra_size;
+ struct _aarch64_ctx const __user *end;
+ u32 end_magic, end_size;
+
+ if (limit - offset < sizeof(*head))
+ goto invalid;
+
+ if (!IS_ALIGNED(offset, 16))
+ goto invalid;
+
+ head = (struct _aarch64_ctx __user *)(base + offset);
+ __get_user_error(magic, &head->magic, err);
+ __get_user_error(size, &head->size, err);
+ if (err)
+ return err;
+
+ if (limit - offset < size)
+ goto invalid;
+
+ switch (magic) {
+ case 0:
+ if (size)
+ goto invalid;
+
+ goto done;
+
+ case FPSIMD_MAGIC:
+ if (user->fpsimd)
+ goto invalid;
+
+ if (size < sizeof(*user->fpsimd))
+ goto invalid;
+
+ user->fpsimd = (struct fpsimd_context __user *)head;
+ break;
+
+ case ESR_MAGIC:
+ /* ignore */
+ break;
+
+ case EXTRA_MAGIC:
+ if (have_extra_context)
+ goto invalid;
+
+ if (size < sizeof(*extra))
+ goto invalid;
+
+ userp = (char const __user *)head;
+
+ extra = (struct extra_context const __user *)userp;
+ userp += size;
+
+ __get_user_error(extra_datap, &extra->datap, err);
+ __get_user_error(extra_size, &extra->size, err);
+ if (err)
+ return err;
+
+ /* Check for the dummy terminator in __reserved[]: */
+
+ if (limit - offset - size < TERMINATOR_SIZE)
+ goto invalid;
+
+ end = (struct _aarch64_ctx const __user *)userp;
+ userp += TERMINATOR_SIZE;
+
+ __get_user_error(end_magic, &end->magic, err);
+ __get_user_error(end_size, &end->size, err);
+ if (err)
+ return err;
+
+ if (end_magic || end_size)
+ goto invalid;
+
+ /* Prevent looping/repeated parsing of extra_context */
+ have_extra_context = true;
+
+ base = (__force void __user *)extra_datap;
+ if (!IS_ALIGNED((unsigned long)base, 16))
+ goto invalid;
+
+ if (!IS_ALIGNED(extra_size, 16))
+ goto invalid;
+
+ if (base != userp)
+ goto invalid;
+
+ /* Reject "unreasonably large" frames: */
+ if (extra_size > sfp + SIGFRAME_MAXSZ - userp)
+ goto invalid;
+
+ /*
+ * Ignore trailing terminator in __reserved[]
+ * and start parsing extra data:
+ */
+ offset = 0;
+ limit = extra_size;
+ continue;
+
+ default:
+ goto invalid;
+ }
+
+ if (size < sizeof(*head))
+ goto invalid;
+
+ if (limit - offset < size)
+ goto invalid;
+
+ offset += size;
+ }
+
+done:
+ if (!user->fpsimd)
+ goto invalid;
+
+ return 0;
+
+invalid:
+ return -EINVAL;
+}
+
static int restore_sigframe(struct pt_regs *regs,
struct rt_sigframe __user *sf)
{
sigset_t set;
int i, err;
- void *aux = sf->uc.uc_mcontext.__reserved;
+ struct user_ctxs user;
err = __copy_from_user(&set, &sf->uc.uc_sigmask, sizeof(set));
if (err == 0)
@@ -113,15 +389,14 @@ static int restore_sigframe(struct pt_regs *regs,
/*
* Avoid sys_rt_sigreturn() restarting.
*/
- regs->syscallno = ~0UL;
+ forget_syscall(regs);
err |= !valid_user_regs(&regs->user_regs, current);
+ if (err == 0)
+ err = parse_user_sigframe(&user, sf);
- if (err == 0) {
- struct fpsimd_context *fpsimd_ctx =
- container_of(aux, struct fpsimd_context, head);
- err |= restore_fpsimd_context(fpsimd_ctx);
- }
+ if (err == 0)
+ err = restore_fpsimd_context(user.fpsimd);
return err;
}
@@ -162,16 +437,37 @@ badframe:
return 0;
}
-static int setup_sigframe(struct rt_sigframe __user *sf,
+/* Determine the layout of optional records in the signal frame */
+static int setup_sigframe_layout(struct rt_sigframe_user_layout *user)
+{
+ int err;
+
+ err = sigframe_alloc(user, &user->fpsimd_offset,
+ sizeof(struct fpsimd_context));
+ if (err)
+ return err;
+
+ /* fault information, if valid */
+ if (current->thread.fault_code) {
+ err = sigframe_alloc(user, &user->esr_offset,
+ sizeof(struct esr_context));
+ if (err)
+ return err;
+ }
+
+ return sigframe_alloc_end(user);
+}
+
+
+static int setup_sigframe(struct rt_sigframe_user_layout *user,
struct pt_regs *regs, sigset_t *set)
{
int i, err = 0;
- void *aux = sf->uc.uc_mcontext.__reserved;
- struct _aarch64_ctx *end;
+ struct rt_sigframe __user *sf = user->sigframe;
/* set up the stack frame for unwinding */
- __put_user_error(regs->regs[29], &sf->fp, err);
- __put_user_error(regs->regs[30], &sf->lr, err);
+ __put_user_error(regs->regs[29], &user->next_frame->fp, err);
+ __put_user_error(regs->regs[30], &user->next_frame->lr, err);
for (i = 0; i < 31; i++)
__put_user_error(regs->regs[i], &sf->uc.uc_mcontext.regs[i],
@@ -185,58 +481,103 @@ static int setup_sigframe(struct rt_sigframe __user *sf,
err |= __copy_to_user(&sf->uc.uc_sigmask, set, sizeof(*set));
if (err == 0) {
- struct fpsimd_context *fpsimd_ctx =
- container_of(aux, struct fpsimd_context, head);
+ struct fpsimd_context __user *fpsimd_ctx =
+ apply_user_offset(user, user->fpsimd_offset);
err |= preserve_fpsimd_context(fpsimd_ctx);
- aux += sizeof(*fpsimd_ctx);
}
/* fault information, if valid */
- if (current->thread.fault_code) {
- struct esr_context *esr_ctx =
- container_of(aux, struct esr_context, head);
+ if (err == 0 && user->esr_offset) {
+ struct esr_context __user *esr_ctx =
+ apply_user_offset(user, user->esr_offset);
+
__put_user_error(ESR_MAGIC, &esr_ctx->head.magic, err);
__put_user_error(sizeof(*esr_ctx), &esr_ctx->head.size, err);
__put_user_error(current->thread.fault_code, &esr_ctx->esr, err);
- aux += sizeof(*esr_ctx);
+ }
+
+ if (err == 0 && user->extra_offset) {
+ char __user *sfp = (char __user *)user->sigframe;
+ char __user *userp =
+ apply_user_offset(user, user->extra_offset);
+
+ struct extra_context __user *extra;
+ struct _aarch64_ctx __user *end;
+ u64 extra_datap;
+ u32 extra_size;
+
+ extra = (struct extra_context __user *)userp;
+ userp += EXTRA_CONTEXT_SIZE;
+
+ end = (struct _aarch64_ctx __user *)userp;
+ userp += TERMINATOR_SIZE;
+
+ /*
+ * extra_datap is just written to the signal frame.
+ * The value gets cast back to a void __user *
+ * during sigreturn.
+ */
+ extra_datap = (__force u64)userp;
+ extra_size = sfp + round_up(user->size, 16) - userp;
+
+ __put_user_error(EXTRA_MAGIC, &extra->head.magic, err);
+ __put_user_error(EXTRA_CONTEXT_SIZE, &extra->head.size, err);
+ __put_user_error(extra_datap, &extra->datap, err);
+ __put_user_error(extra_size, &extra->size, err);
+
+ /* Add the terminator */
+ __put_user_error(0, &end->magic, err);
+ __put_user_error(0, &end->size, err);
}
/* set the "end" magic */
- end = aux;
- __put_user_error(0, &end->magic, err);
- __put_user_error(0, &end->size, err);
+ if (err == 0) {
+ struct _aarch64_ctx __user *end =
+ apply_user_offset(user, user->end_offset);
+
+ __put_user_error(0, &end->magic, err);
+ __put_user_error(0, &end->size, err);
+ }
return err;
}
-static struct rt_sigframe __user *get_sigframe(struct ksignal *ksig,
- struct pt_regs *regs)
+static int get_sigframe(struct rt_sigframe_user_layout *user,
+ struct ksignal *ksig, struct pt_regs *regs)
{
unsigned long sp, sp_top;
- struct rt_sigframe __user *frame;
+ int err;
+
+ init_user_layout(user);
+ err = setup_sigframe_layout(user);
+ if (err)
+ return err;
sp = sp_top = sigsp(regs->sp, ksig);
- sp = (sp - sizeof(struct rt_sigframe)) & ~15;
- frame = (struct rt_sigframe __user *)sp;
+ sp = round_down(sp - sizeof(struct frame_record), 16);
+ user->next_frame = (struct frame_record __user *)sp;
+
+ sp = round_down(sp, 16) - sigframe_size(user);
+ user->sigframe = (struct rt_sigframe __user *)sp;
/*
* Check that we can actually write to the signal frame.
*/
- if (!access_ok(VERIFY_WRITE, frame, sp_top - sp))
- frame = NULL;
+ if (!access_ok(VERIFY_WRITE, user->sigframe, sp_top - sp))
+ return -EFAULT;
- return frame;
+ return 0;
}
static void setup_return(struct pt_regs *regs, struct k_sigaction *ka,
- void __user *frame, int usig)
+ struct rt_sigframe_user_layout *user, int usig)
{
__sigrestore_t sigtramp;
regs->regs[0] = usig;
- regs->sp = (unsigned long)frame;
- regs->regs[29] = regs->sp + offsetof(struct rt_sigframe, fp);
+ regs->sp = (unsigned long)user->sigframe;
+ regs->regs[29] = (unsigned long)&user->next_frame->fp;
regs->pc = (unsigned long)ka->sa.sa_handler;
if (ka->sa.sa_flags & SA_RESTORER)
@@ -250,20 +591,22 @@ static void setup_return(struct pt_regs *regs, struct k_sigaction *ka,
static int setup_rt_frame(int usig, struct ksignal *ksig, sigset_t *set,
struct pt_regs *regs)
{
+ struct rt_sigframe_user_layout user;
struct rt_sigframe __user *frame;
int err = 0;
- frame = get_sigframe(ksig, regs);
- if (!frame)
+ if (get_sigframe(&user, ksig, regs))
return 1;
+ frame = user.sigframe;
+
__put_user_error(0, &frame->uc.uc_flags, err);
__put_user_error(NULL, &frame->uc.uc_link, err);
err |= __save_altstack(&frame->uc.uc_stack, regs->sp);
- err |= setup_sigframe(frame, regs, set);
+ err |= setup_sigframe(&user, regs, set);
if (err == 0) {
- setup_return(regs, &ksig->ka, frame, usig);
+ setup_return(regs, &ksig->ka, &user, usig);
if (ksig->ka.sa.sa_flags & SA_SIGINFO) {
err |= copy_siginfo_to_user(&frame->info, &ksig->info);
regs->regs[1] = (unsigned long)&frame->info;
@@ -332,13 +675,12 @@ static void do_signal(struct pt_regs *regs)
{
unsigned long continue_addr = 0, restart_addr = 0;
int retval = 0;
- int syscall = (int)regs->syscallno;
struct ksignal ksig;
/*
* If we were from a system call, check for system call restarting...
*/
- if (syscall >= 0) {
+ if (in_syscall(regs)) {
continue_addr = regs->pc;
restart_addr = continue_addr - (compat_thumb_mode(regs) ? 2 : 4);
retval = regs->regs[0];
@@ -346,7 +688,7 @@ static void do_signal(struct pt_regs *regs)
/*
* Avoid additional syscall restarting via ret_to_user.
*/
- regs->syscallno = ~0UL;
+ forget_syscall(regs);
/*
* Prepare for system call restart. We do this here so that a
@@ -390,7 +732,7 @@ static void do_signal(struct pt_regs *regs)
* Handle restarting a different system call. As above, if a debugger
* has chosen to restart at a different PC, ignore the restart.
*/
- if (syscall >= 0 && regs->pc == restart_addr) {
+ if (in_syscall(regs) && regs->pc == restart_addr) {
if (retval == -ERESTART_RESTARTBLOCK)
setup_restart_syscall(regs);
user_rewind_single_step(current);
@@ -408,7 +750,11 @@ asmlinkage void do_notify_resume(struct pt_regs *regs,
* Update the trace code with the current status.
*/
trace_hardirqs_off();
+
do {
+ /* Check valid user FS if needed */
+ addr_limit_user_check();
+
if (thread_flags & _TIF_NEED_RESCHED) {
schedule();
} else {
diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c
index c747a0fc5d7d..e09bf5d15606 100644
--- a/arch/arm64/kernel/signal32.c
+++ b/arch/arm64/kernel/signal32.c
@@ -142,25 +142,25 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
*/
err = __put_user(from->si_signo, &to->si_signo);
err |= __put_user(from->si_errno, &to->si_errno);
- err |= __put_user((short)from->si_code, &to->si_code);
+ err |= __put_user(from->si_code, &to->si_code);
if (from->si_code < 0)
err |= __copy_to_user(&to->_sifields._pad, &from->_sifields._pad,
SI_PAD_SIZE);
- else switch (from->si_code & __SI_MASK) {
- case __SI_KILL:
+ else switch (siginfo_layout(from->si_signo, from->si_code)) {
+ case SIL_KILL:
err |= __put_user(from->si_pid, &to->si_pid);
err |= __put_user(from->si_uid, &to->si_uid);
break;
- case __SI_TIMER:
+ case SIL_TIMER:
err |= __put_user(from->si_tid, &to->si_tid);
err |= __put_user(from->si_overrun, &to->si_overrun);
err |= __put_user(from->si_int, &to->si_int);
break;
- case __SI_POLL:
+ case SIL_POLL:
err |= __put_user(from->si_band, &to->si_band);
err |= __put_user(from->si_fd, &to->si_fd);
break;
- case __SI_FAULT:
+ case SIL_FAULT:
err |= __put_user((compat_uptr_t)(unsigned long)from->si_addr,
&to->si_addr);
#ifdef BUS_MCEERR_AO
@@ -173,29 +173,24 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
err |= __put_user(from->si_addr_lsb, &to->si_addr_lsb);
#endif
break;
- case __SI_CHLD:
+ case SIL_CHLD:
err |= __put_user(from->si_pid, &to->si_pid);
err |= __put_user(from->si_uid, &to->si_uid);
err |= __put_user(from->si_status, &to->si_status);
err |= __put_user(from->si_utime, &to->si_utime);
err |= __put_user(from->si_stime, &to->si_stime);
break;
- case __SI_RT: /* This is not generated by the kernel as of now. */
- case __SI_MESGQ: /* But this is */
+ case SIL_RT:
err |= __put_user(from->si_pid, &to->si_pid);
err |= __put_user(from->si_uid, &to->si_uid);
err |= __put_user(from->si_int, &to->si_int);
break;
- case __SI_SYS:
+ case SIL_SYS:
err |= __put_user((compat_uptr_t)(unsigned long)
from->si_call_addr, &to->si_call_addr);
err |= __put_user(from->si_syscall, &to->si_syscall);
err |= __put_user(from->si_arch, &to->si_arch);
break;
- default: /* this is just in case for now ... */
- err |= __put_user(from->si_pid, &to->si_pid);
- err |= __put_user(from->si_uid, &to->si_uid);
- break;
}
return err;
}
@@ -354,7 +349,7 @@ static int compat_restore_sigframe(struct pt_regs *regs,
/*
* Avoid compat_sys_sigreturn() restarting.
*/
- regs->syscallno = ~0UL;
+ forget_syscall(regs);
err |= !valid_user_regs(&regs->user_regs, current);
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 6e0e16a3a7d4..9f7195a5773e 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -154,7 +154,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle)
* page tables.
*/
secondary_data.task = idle;
- secondary_data.stack = task_stack_page(idle) + THREAD_START_SP;
+ secondary_data.stack = task_stack_page(idle) + THREAD_SIZE;
update_cpu_boot_status(CPU_MMU_OFF);
__flush_dcache_area(&secondary_data, sizeof(secondary_data));
@@ -469,7 +469,7 @@ static u64 __init of_get_cpu_mpidr(struct device_node *dn)
*/
cell = of_get_property(dn, "reg", NULL);
if (!cell) {
- pr_err("%s: missing reg property\n", dn->full_name);
+ pr_err("%pOF: missing reg property\n", dn);
return INVALID_HWID;
}
@@ -478,7 +478,7 @@ static u64 __init of_get_cpu_mpidr(struct device_node *dn)
* Non affinity bits must be set to 0 in the DT
*/
if (hwid & ~MPIDR_HWID_BITMASK) {
- pr_err("%s: invalid reg property\n", dn->full_name);
+ pr_err("%pOF: invalid reg property\n", dn);
return INVALID_HWID;
}
return hwid;
@@ -627,8 +627,8 @@ static void __init of_parse_and_init_cpus(void)
goto next;
if (is_mpidr_duplicate(cpu_count, hwid)) {
- pr_err("%s: duplicate cpu reg properties in the DT\n",
- dn->full_name);
+ pr_err("%pOF: duplicate cpu reg properties in the DT\n",
+ dn);
goto next;
}
@@ -640,8 +640,8 @@ static void __init of_parse_and_init_cpus(void)
*/
if (hwid == cpu_logical_map(0)) {
if (bootcpu_valid) {
- pr_err("%s: duplicate boot cpu reg property in DT\n",
- dn->full_name);
+ pr_err("%pOF: duplicate boot cpu reg property in DT\n",
+ dn);
goto next;
}
@@ -690,7 +690,7 @@ void __init smp_init_cpus(void)
acpi_parse_gic_cpu_interface, 0);
if (cpu_count > nr_cpu_ids)
- pr_warn("Number of cores (%d) exceeds configured maximum of %d - clipping\n",
+ pr_warn("Number of cores (%d) exceeds configured maximum of %u - clipping\n",
cpu_count, nr_cpu_ids);
if (!bootcpu_valid) {
@@ -961,8 +961,7 @@ void smp_send_stop(void)
cpumask_copy(&mask, cpu_online_mask);
cpumask_clear_cpu(smp_processor_id(), &mask);
- if (system_state == SYSTEM_BOOTING ||
- system_state == SYSTEM_RUNNING)
+ if (system_state <= SYSTEM_RUNNING)
pr_crit("SMP: stopping secondary CPUs\n");
smp_cross_call(&mask, IPI_CPU_STOP);
}
@@ -978,11 +977,21 @@ void smp_send_stop(void)
}
#ifdef CONFIG_KEXEC_CORE
-void smp_send_crash_stop(void)
+void crash_smp_send_stop(void)
{
+ static int cpus_stopped;
cpumask_t mask;
unsigned long timeout;
+ /*
+ * This function can be called twice in panic path, but obviously
+ * we execute this only once.
+ */
+ if (cpus_stopped)
+ return;
+
+ cpus_stopped = 1;
+
if (num_online_cpus() == 1)
return;
diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c
index feac80c22f61..76809ccd309c 100644
--- a/arch/arm64/kernel/stacktrace.c
+++ b/arch/arm64/kernel/stacktrace.c
@@ -42,33 +42,17 @@
*/
int notrace unwind_frame(struct task_struct *tsk, struct stackframe *frame)
{
- unsigned long high, low;
unsigned long fp = frame->fp;
- unsigned long irq_stack_ptr;
+
+ if (fp & 0xf)
+ return -EINVAL;
if (!tsk)
tsk = current;
- /*
- * Switching between stacks is valid when tracing current and in
- * non-preemptible context.
- */
- if (tsk == current && !preemptible())
- irq_stack_ptr = IRQ_STACK_PTR(smp_processor_id());
- else
- irq_stack_ptr = 0;
-
- low = frame->sp;
- /* irq stacks are not THREAD_SIZE aligned */
- if (on_irq_stack(frame->sp, raw_smp_processor_id()))
- high = irq_stack_ptr;
- else
- high = ALIGN(low, THREAD_SIZE) - 0x20;
-
- if (fp < low || fp > high || fp & 0xf)
+ if (!on_accessible_stack(tsk, fp))
return -EINVAL;
- frame->sp = fp + 0x10;
frame->fp = READ_ONCE_NOCHECK(*(unsigned long *)(fp));
frame->pc = READ_ONCE_NOCHECK(*(unsigned long *)(fp + 8));
@@ -86,34 +70,13 @@ int notrace unwind_frame(struct task_struct *tsk, struct stackframe *frame)
#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
/*
- * Check whether we are going to walk through from interrupt stack
- * to task stack.
- * If we reach the end of the stack - and its an interrupt stack,
- * unpack the dummy frame to find the original elr.
- *
- * Check the frame->fp we read from the bottom of the irq_stack,
- * and the original task stack pointer are both in current->stack.
+ * Frames created upon entry from EL0 have NULL FP and PC values, so
+ * don't bother reporting these. Frames created by __noreturn functions
+ * might have a valid FP even if PC is bogus, so only terminate where
+ * both are NULL.
*/
- if (frame->sp == irq_stack_ptr) {
- struct pt_regs *irq_args;
- unsigned long orig_sp = IRQ_STACK_TO_TASK_STACK(irq_stack_ptr);
-
- if (object_is_on_stack((void *)orig_sp) &&
- object_is_on_stack((void *)frame->fp)) {
- frame->sp = orig_sp;
-
- /* orig_sp is the saved pt_regs, find the elr */
- irq_args = (struct pt_regs *)orig_sp;
- frame->pc = irq_args->pc;
- } else {
- /*
- * This frame has a non-standard format, and we
- * didn't fix it, because the data looked wrong.
- * Refuse to output this frame.
- */
- return -EINVAL;
- }
- }
+ if (!frame->fp && !frame->pc)
+ return -EINVAL;
return 0;
}
@@ -167,7 +130,6 @@ void save_stack_trace_regs(struct pt_regs *regs, struct stack_trace *trace)
data.no_sched_functions = 0;
frame.fp = regs->regs[29];
- frame.sp = regs->sp;
frame.pc = regs->pc;
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
frame.graph = current->curr_ret_stack;
@@ -178,7 +140,8 @@ void save_stack_trace_regs(struct pt_regs *regs, struct stack_trace *trace)
trace->entries[trace->nr_entries++] = ULONG_MAX;
}
-void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
+static noinline void __save_stack_trace(struct task_struct *tsk,
+ struct stack_trace *trace, unsigned int nosched)
{
struct stack_trace_data data;
struct stackframe frame;
@@ -188,17 +151,16 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
data.trace = trace;
data.skip = trace->skip;
+ data.no_sched_functions = nosched;
if (tsk != current) {
- data.no_sched_functions = 1;
frame.fp = thread_saved_fp(tsk);
- frame.sp = thread_saved_sp(tsk);
frame.pc = thread_saved_pc(tsk);
} else {
- data.no_sched_functions = 0;
+ /* We don't want this function nor the caller */
+ data.skip += 2;
frame.fp = (unsigned long)__builtin_frame_address(0);
- frame.sp = current_stack_pointer;
- frame.pc = (unsigned long)save_stack_trace_tsk;
+ frame.pc = (unsigned long)__save_stack_trace;
}
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
frame.graph = tsk->curr_ret_stack;
@@ -210,10 +172,17 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
put_task_stack(tsk);
}
+EXPORT_SYMBOL_GPL(save_stack_trace_tsk);
+
+void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
+{
+ __save_stack_trace(tsk, trace, 1);
+}
void save_stack_trace(struct stack_trace *trace)
{
- save_stack_trace_tsk(current, trace);
+ __save_stack_trace(current, trace, 0);
}
+
EXPORT_SYMBOL_GPL(save_stack_trace);
#endif
diff --git a/arch/arm64/kernel/time.c b/arch/arm64/kernel/time.c
index 59779699a1a4..a4391280fba9 100644
--- a/arch/arm64/kernel/time.c
+++ b/arch/arm64/kernel/time.c
@@ -50,7 +50,6 @@ unsigned long profile_pc(struct pt_regs *regs)
return regs->pc;
frame.fp = regs->regs[29];
- frame.sp = regs->sp;
frame.pc = regs->pc;
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
frame.graph = -1; /* no task info */
@@ -70,7 +69,7 @@ void __init time_init(void)
u32 arch_timer_rate;
of_clk_init(NULL);
- clocksource_probe();
+ timer_probe();
tick_setup_hrtimer_broadcast();
diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c
index 08243533e5ee..8d48b233e6ce 100644
--- a/arch/arm64/kernel/topology.c
+++ b/arch/arm64/kernel/topology.c
@@ -11,7 +11,7 @@
* for more details.
*/
-#include <linux/acpi.h>
+#include <linux/arch_topology.h>
#include <linux/cpu.h>
#include <linux/cpumask.h>
#include <linux/init.h>
@@ -23,227 +23,11 @@
#include <linux/sched/topology.h>
#include <linux/slab.h>
#include <linux/string.h>
-#include <linux/cpufreq.h>
#include <asm/cpu.h>
#include <asm/cputype.h>
#include <asm/topology.h>
-static DEFINE_PER_CPU(unsigned long, cpu_scale) = SCHED_CAPACITY_SCALE;
-static DEFINE_MUTEX(cpu_scale_mutex);
-
-unsigned long arch_scale_cpu_capacity(struct sched_domain *sd, int cpu)
-{
- return per_cpu(cpu_scale, cpu);
-}
-
-static void set_capacity_scale(unsigned int cpu, unsigned long capacity)
-{
- per_cpu(cpu_scale, cpu) = capacity;
-}
-
-static ssize_t cpu_capacity_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct cpu *cpu = container_of(dev, struct cpu, dev);
-
- return sprintf(buf, "%lu\n",
- arch_scale_cpu_capacity(NULL, cpu->dev.id));
-}
-
-static ssize_t cpu_capacity_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t count)
-{
- struct cpu *cpu = container_of(dev, struct cpu, dev);
- int this_cpu = cpu->dev.id, i;
- unsigned long new_capacity;
- ssize_t ret;
-
- if (count) {
- ret = kstrtoul(buf, 0, &new_capacity);
- if (ret)
- return ret;
- if (new_capacity > SCHED_CAPACITY_SCALE)
- return -EINVAL;
-
- mutex_lock(&cpu_scale_mutex);
- for_each_cpu(i, &cpu_topology[this_cpu].core_sibling)
- set_capacity_scale(i, new_capacity);
- mutex_unlock(&cpu_scale_mutex);
- }
-
- return count;
-}
-
-static DEVICE_ATTR_RW(cpu_capacity);
-
-static int register_cpu_capacity_sysctl(void)
-{
- int i;
- struct device *cpu;
-
- for_each_possible_cpu(i) {
- cpu = get_cpu_device(i);
- if (!cpu) {
- pr_err("%s: too early to get CPU%d device!\n",
- __func__, i);
- continue;
- }
- device_create_file(cpu, &dev_attr_cpu_capacity);
- }
-
- return 0;
-}
-subsys_initcall(register_cpu_capacity_sysctl);
-
-static u32 capacity_scale;
-static u32 *raw_capacity;
-static bool cap_parsing_failed;
-
-static void __init parse_cpu_capacity(struct device_node *cpu_node, int cpu)
-{
- int ret;
- u32 cpu_capacity;
-
- if (cap_parsing_failed)
- return;
-
- ret = of_property_read_u32(cpu_node,
- "capacity-dmips-mhz",
- &cpu_capacity);
- if (!ret) {
- if (!raw_capacity) {
- raw_capacity = kcalloc(num_possible_cpus(),
- sizeof(*raw_capacity),
- GFP_KERNEL);
- if (!raw_capacity) {
- pr_err("cpu_capacity: failed to allocate memory for raw capacities\n");
- cap_parsing_failed = true;
- return;
- }
- }
- capacity_scale = max(cpu_capacity, capacity_scale);
- raw_capacity[cpu] = cpu_capacity;
- pr_debug("cpu_capacity: %s cpu_capacity=%u (raw)\n",
- cpu_node->full_name, raw_capacity[cpu]);
- } else {
- if (raw_capacity) {
- pr_err("cpu_capacity: missing %s raw capacity\n",
- cpu_node->full_name);
- pr_err("cpu_capacity: partial information: fallback to 1024 for all CPUs\n");
- }
- cap_parsing_failed = true;
- kfree(raw_capacity);
- }
-}
-
-static void normalize_cpu_capacity(void)
-{
- u64 capacity;
- int cpu;
-
- if (!raw_capacity || cap_parsing_failed)
- return;
-
- pr_debug("cpu_capacity: capacity_scale=%u\n", capacity_scale);
- mutex_lock(&cpu_scale_mutex);
- for_each_possible_cpu(cpu) {
- pr_debug("cpu_capacity: cpu=%d raw_capacity=%u\n",
- cpu, raw_capacity[cpu]);
- capacity = (raw_capacity[cpu] << SCHED_CAPACITY_SHIFT)
- / capacity_scale;
- set_capacity_scale(cpu, capacity);
- pr_debug("cpu_capacity: CPU%d cpu_capacity=%lu\n",
- cpu, arch_scale_cpu_capacity(NULL, cpu));
- }
- mutex_unlock(&cpu_scale_mutex);
-}
-
-#ifdef CONFIG_CPU_FREQ
-static cpumask_var_t cpus_to_visit;
-static bool cap_parsing_done;
-static void parsing_done_workfn(struct work_struct *work);
-static DECLARE_WORK(parsing_done_work, parsing_done_workfn);
-
-static int
-init_cpu_capacity_callback(struct notifier_block *nb,
- unsigned long val,
- void *data)
-{
- struct cpufreq_policy *policy = data;
- int cpu;
-
- if (cap_parsing_failed || cap_parsing_done)
- return 0;
-
- switch (val) {
- case CPUFREQ_NOTIFY:
- pr_debug("cpu_capacity: init cpu capacity for CPUs [%*pbl] (to_visit=%*pbl)\n",
- cpumask_pr_args(policy->related_cpus),
- cpumask_pr_args(cpus_to_visit));
- cpumask_andnot(cpus_to_visit,
- cpus_to_visit,
- policy->related_cpus);
- for_each_cpu(cpu, policy->related_cpus) {
- raw_capacity[cpu] = arch_scale_cpu_capacity(NULL, cpu) *
- policy->cpuinfo.max_freq / 1000UL;
- capacity_scale = max(raw_capacity[cpu], capacity_scale);
- }
- if (cpumask_empty(cpus_to_visit)) {
- normalize_cpu_capacity();
- kfree(raw_capacity);
- pr_debug("cpu_capacity: parsing done\n");
- cap_parsing_done = true;
- schedule_work(&parsing_done_work);
- }
- }
- return 0;
-}
-
-static struct notifier_block init_cpu_capacity_notifier = {
- .notifier_call = init_cpu_capacity_callback,
-};
-
-static int __init register_cpufreq_notifier(void)
-{
- /*
- * on ACPI-based systems we need to use the default cpu capacity
- * until we have the necessary code to parse the cpu capacity, so
- * skip registering cpufreq notifier.
- */
- if (!acpi_disabled || cap_parsing_failed)
- return -EINVAL;
-
- if (!alloc_cpumask_var(&cpus_to_visit, GFP_KERNEL)) {
- pr_err("cpu_capacity: failed to allocate memory for cpus_to_visit\n");
- return -ENOMEM;
- }
- cpumask_copy(cpus_to_visit, cpu_possible_mask);
-
- return cpufreq_register_notifier(&init_cpu_capacity_notifier,
- CPUFREQ_POLICY_NOTIFIER);
-}
-core_initcall(register_cpufreq_notifier);
-
-static void parsing_done_workfn(struct work_struct *work)
-{
- cpufreq_unregister_notifier(&init_cpu_capacity_notifier,
- CPUFREQ_POLICY_NOTIFIER);
-}
-
-#else
-static int __init free_raw_capacity(void)
-{
- kfree(raw_capacity);
-
- return 0;
-}
-core_initcall(free_raw_capacity);
-#endif
-
static int __init get_cpu_for_node(struct device_node *node)
{
struct device_node *cpu_node;
@@ -255,13 +39,13 @@ static int __init get_cpu_for_node(struct device_node *node)
for_each_possible_cpu(cpu) {
if (of_get_cpu_node(cpu, NULL) == cpu_node) {
- parse_cpu_capacity(cpu_node, cpu);
+ topology_parse_cpu_capacity(cpu_node, cpu);
of_node_put(cpu_node);
return cpu;
}
}
- pr_crit("Unable to find CPU node for %s\n", cpu_node->full_name);
+ pr_crit("Unable to find CPU node for %pOF\n", cpu_node);
of_node_put(cpu_node);
return -1;
@@ -287,8 +71,8 @@ static int __init parse_core(struct device_node *core, int cluster_id,
cpu_topology[cpu].core_id = core_id;
cpu_topology[cpu].thread_id = i;
} else {
- pr_err("%s: Can't get CPU for thread\n",
- t->full_name);
+ pr_err("%pOF: Can't get CPU for thread\n",
+ t);
of_node_put(t);
return -EINVAL;
}
@@ -300,15 +84,15 @@ static int __init parse_core(struct device_node *core, int cluster_id,
cpu = get_cpu_for_node(core);
if (cpu >= 0) {
if (!leaf) {
- pr_err("%s: Core has both threads and CPU\n",
- core->full_name);
+ pr_err("%pOF: Core has both threads and CPU\n",
+ core);
return -EINVAL;
}
cpu_topology[cpu].cluster_id = cluster_id;
cpu_topology[cpu].core_id = core_id;
} else if (leaf) {
- pr_err("%s: Can't get CPU for leaf core\n", core->full_name);
+ pr_err("%pOF: Can't get CPU for leaf core\n", core);
return -EINVAL;
}
@@ -353,8 +137,8 @@ static int __init parse_cluster(struct device_node *cluster, int depth)
has_cores = true;
if (depth == 0) {
- pr_err("%s: cpu-map children should be clusters\n",
- c->full_name);
+ pr_err("%pOF: cpu-map children should be clusters\n",
+ c);
of_node_put(c);
return -EINVAL;
}
@@ -362,8 +146,8 @@ static int __init parse_cluster(struct device_node *cluster, int depth)
if (leaf) {
ret = parse_core(c, cluster_id, core_id++);
} else {
- pr_err("%s: Non-leaf cluster with core %s\n",
- cluster->full_name, name);
+ pr_err("%pOF: Non-leaf cluster with core %s\n",
+ cluster, name);
ret = -EINVAL;
}
@@ -375,7 +159,7 @@ static int __init parse_cluster(struct device_node *cluster, int depth)
} while (c);
if (leaf && !has_cores)
- pr_warn("%s: empty cluster\n", cluster->full_name);
+ pr_warn("%pOF: empty cluster\n", cluster);
if (leaf)
cluster_id++;
@@ -400,16 +184,14 @@ static int __init parse_dt_topology(void)
* cluster with restricted subnodes.
*/
map = of_get_child_by_name(cn, "cpu-map");
- if (!map) {
- cap_parsing_failed = true;
+ if (!map)
goto out;
- }
ret = parse_cluster(map, 0);
if (ret != 0)
goto out_map;
- normalize_cpu_capacity();
+ topology_normalize_cpu_scale();
/*
* Check that all cores are in the topology; the SMP code will
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index 0805b44f986a..5ea4b85aee0e 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -32,6 +32,7 @@
#include <linux/sched/signal.h>
#include <linux/sched/debug.h>
#include <linux/sched/task_stack.h>
+#include <linux/sizes.h>
#include <linux/syscalls.h>
#include <linux/mm_types.h>
@@ -41,6 +42,7 @@
#include <asm/esr.h>
#include <asm/insn.h>
#include <asm/traps.h>
+#include <asm/smp.h>
#include <asm/stack_pointer.h>
#include <asm/stacktrace.h>
#include <asm/exception.h>
@@ -140,10 +142,9 @@ static void dump_instr(const char *lvl, struct pt_regs *regs)
}
}
-static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
+void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
{
struct stackframe frame;
- unsigned long irq_stack_ptr;
int skip;
pr_debug("%s(regs = %p tsk = %p)\n", __func__, regs, tsk);
@@ -154,25 +155,14 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
if (!try_get_task_stack(tsk))
return;
- /*
- * Switching between stacks is valid when tracing current and in
- * non-preemptible context.
- */
- if (tsk == current && !preemptible())
- irq_stack_ptr = IRQ_STACK_PTR(smp_processor_id());
- else
- irq_stack_ptr = 0;
-
if (tsk == current) {
frame.fp = (unsigned long)__builtin_frame_address(0);
- frame.sp = current_stack_pointer;
frame.pc = (unsigned long)dump_backtrace;
} else {
/*
* task blocked in __switch_to
*/
frame.fp = thread_saved_fp(tsk);
- frame.sp = thread_saved_sp(tsk);
frame.pc = thread_saved_pc(tsk);
}
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
@@ -182,13 +172,12 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
skip = !!regs;
printk("Call trace:\n");
while (1) {
- unsigned long where = frame.pc;
unsigned long stack;
int ret;
/* skip until specified stack frame */
if (!skip) {
- dump_backtrace_entry(where);
+ dump_backtrace_entry(frame.pc);
} else if (frame.fp == regs->regs[29]) {
skip = 0;
/*
@@ -203,20 +192,12 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
ret = unwind_frame(tsk, &frame);
if (ret < 0)
break;
- stack = frame.sp;
- if (in_exception_text(where)) {
- /*
- * If we switched to the irq_stack before calling this
- * exception handler, then the pt_regs will be on the
- * task stack. The easiest way to tell is if the large
- * pt_regs would overlap with the end of the irq_stack.
- */
- if (stack < irq_stack_ptr &&
- (stack + sizeof(struct pt_regs)) > irq_stack_ptr)
- stack = IRQ_STACK_TO_TASK_STACK(irq_stack_ptr);
+ if (in_entry_text(frame.pc)) {
+ stack = frame.fp - offsetof(struct pt_regs, stackframe);
- dump_mem("", "Exception stack", stack,
- stack + sizeof(struct pt_regs));
+ if (on_accessible_stack(tsk, stack))
+ dump_mem("", "Exception stack", stack,
+ stack + sizeof(struct pt_regs));
}
}
@@ -257,8 +238,6 @@ static int __die(const char *str, int err, struct pt_regs *regs)
end_of_stack(tsk));
if (!user_mode(regs)) {
- dump_mem(KERN_EMERG, "Stack: ", regs->sp,
- THREAD_SIZE + (unsigned long)task_stack_page(tsk));
dump_backtrace(regs, tsk);
dump_instr(KERN_EMERG, regs);
}
@@ -274,10 +253,12 @@ static DEFINE_RAW_SPINLOCK(die_lock);
void die(const char *str, struct pt_regs *regs, int err)
{
int ret;
+ unsigned long flags;
+
+ raw_spin_lock_irqsave(&die_lock, flags);
oops_enter();
- raw_spin_lock_irq(&die_lock);
console_verbose();
bust_spinlocks(1);
ret = __die(str, err, regs);
@@ -287,13 +268,15 @@ void die(const char *str, struct pt_regs *regs, int err)
bust_spinlocks(0);
add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);
- raw_spin_unlock_irq(&die_lock);
oops_exit();
if (in_interrupt())
panic("Fatal exception in interrupt");
if (panic_on_oops)
panic("Fatal exception");
+
+ raw_spin_unlock_irqrestore(&die_lock, flags);
+
if (ret != NOTIFY_STOP)
do_exit(SIGSEGV);
}
@@ -344,22 +327,24 @@ static int call_undef_hook(struct pt_regs *regs)
if (compat_thumb_mode(regs)) {
/* 16-bit Thumb instruction */
- if (get_user(instr, (u16 __user *)pc))
+ __le16 instr_le;
+ if (get_user(instr_le, (__le16 __user *)pc))
goto exit;
- instr = le16_to_cpu(instr);
+ instr = le16_to_cpu(instr_le);
if (aarch32_insn_is_wide(instr)) {
u32 instr2;
- if (get_user(instr2, (u16 __user *)(pc + 2)))
+ if (get_user(instr_le, (__le16 __user *)(pc + 2)))
goto exit;
- instr2 = le16_to_cpu(instr2);
+ instr2 = le16_to_cpu(instr_le);
instr = (instr << 16) | instr2;
}
} else {
/* 32-bit ARM instruction */
- if (get_user(instr, (u32 __user *)pc))
+ __le32 instr_le;
+ if (get_user(instr_le, (__le32 __user *)pc))
goto exit;
- instr = le32_to_cpu(instr);
+ instr = le32_to_cpu(instr_le);
}
raw_spin_lock_irqsave(&undef_lock, flags);
@@ -478,6 +463,9 @@ static void user_cache_maint_handler(unsigned int esr, struct pt_regs *regs)
case ESR_ELx_SYS64_ISS_CRM_DC_CVAC: /* DC CVAC, gets promoted */
__user_cache_maint("dc civac", address, ret);
break;
+ case ESR_ELx_SYS64_ISS_CRM_DC_CVAP: /* DC CVAP */
+ __user_cache_maint("sys 3, c7, c12, 1", address, ret);
+ break;
case ESR_ELx_SYS64_ISS_CRM_DC_CIVAC: /* DC CIVAC */
__user_cache_maint("dc civac", address, ret);
break;
@@ -517,7 +505,7 @@ static void cntfrq_read_handler(unsigned int esr, struct pt_regs *regs)
{
int rt = (esr & ESR_ELx_SYS64_ISS_RT_MASK) >> ESR_ELx_SYS64_ISS_RT_SHIFT;
- pt_regs_write_reg(regs, rt, read_sysreg(cntfrq_el0));
+ pt_regs_write_reg(regs, rt, arch_timer_get_rate());
regs->pc += 4;
}
@@ -587,7 +575,7 @@ asmlinkage long do_ni_syscall(struct pt_regs *regs)
if (show_unhandled_signals_ratelimited()) {
pr_info("%s[%d]: syscall %d\n", current->comm,
- task_pid_nr(current), (int)regs->syscallno);
+ task_pid_nr(current), regs->syscallno);
dump_instr("", regs);
if (user_mode(regs))
__show_regs(regs);
@@ -683,6 +671,43 @@ asmlinkage void bad_el0_sync(struct pt_regs *regs, int reason, unsigned int esr)
force_sig_info(info.si_signo, &info, current);
}
+#ifdef CONFIG_VMAP_STACK
+
+DEFINE_PER_CPU(unsigned long [OVERFLOW_STACK_SIZE/sizeof(long)], overflow_stack)
+ __aligned(16);
+
+asmlinkage void handle_bad_stack(struct pt_regs *regs)
+{
+ unsigned long tsk_stk = (unsigned long)current->stack;
+ unsigned long irq_stk = (unsigned long)this_cpu_read(irq_stack_ptr);
+ unsigned long ovf_stk = (unsigned long)this_cpu_ptr(overflow_stack);
+ unsigned int esr = read_sysreg(esr_el1);
+ unsigned long far = read_sysreg(far_el1);
+
+ console_verbose();
+ pr_emerg("Insufficient stack space to handle exception!");
+
+ pr_emerg("ESR: 0x%08x -- %s\n", esr, esr_get_class_string(esr));
+ pr_emerg("FAR: 0x%016lx\n", far);
+
+ pr_emerg("Task stack: [0x%016lx..0x%016lx]\n",
+ tsk_stk, tsk_stk + THREAD_SIZE);
+ pr_emerg("IRQ stack: [0x%016lx..0x%016lx]\n",
+ irq_stk, irq_stk + THREAD_SIZE);
+ pr_emerg("Overflow stack: [0x%016lx..0x%016lx]\n",
+ ovf_stk, ovf_stk + OVERFLOW_STACK_SIZE);
+
+ __show_regs(regs);
+
+ /*
+ * We use nmi_panic to limit the potential for recusive overflows, and
+ * to get a better stack trace.
+ */
+ nmi_panic(NULL, "kernel stack overflow");
+ cpu_park_loop();
+}
+#endif
+
void __pte_error(const char *file, int line, unsigned long val)
{
pr_err("%s:%d: bad pte %016lx.\n", file, line, val);
@@ -728,8 +753,6 @@ static int bug_handler(struct pt_regs *regs, unsigned int esr)
break;
case BUG_TRAP_TYPE_WARN:
- /* Ideally, report_bug() should backtrace for us... but no. */
- dump_backtrace(regs, NULL);
break;
default:
diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c
index d0cb007fa482..2d419006ad43 100644
--- a/arch/arm64/kernel/vdso.c
+++ b/arch/arm64/kernel/vdso.c
@@ -37,7 +37,7 @@
#include <asm/vdso.h>
#include <asm/vdso_datapage.h>
-extern char vdso_start, vdso_end;
+extern char vdso_start[], vdso_end[];
static unsigned long vdso_pages __ro_after_init;
/*
@@ -110,12 +110,27 @@ int aarch32_setup_vectors_page(struct linux_binprm *bprm, int uses_interp)
}
#endif /* CONFIG_COMPAT */
+static int vdso_mremap(const struct vm_special_mapping *sm,
+ struct vm_area_struct *new_vma)
+{
+ unsigned long new_size = new_vma->vm_end - new_vma->vm_start;
+ unsigned long vdso_size = vdso_end - vdso_start;
+
+ if (vdso_size != new_size)
+ return -EINVAL;
+
+ current->mm->context.vdso = (void *)new_vma->vm_start;
+
+ return 0;
+}
+
static struct vm_special_mapping vdso_spec[2] __ro_after_init = {
{
.name = "[vvar]",
},
{
.name = "[vdso]",
+ .mremap = vdso_mremap,
},
};
@@ -125,14 +140,14 @@ static int __init vdso_init(void)
struct page **vdso_pagelist;
unsigned long pfn;
- if (memcmp(&vdso_start, "\177ELF", 4)) {
+ if (memcmp(vdso_start, "\177ELF", 4)) {
pr_err("vDSO is not a valid ELF object!\n");
return -EINVAL;
}
- vdso_pages = (&vdso_end - &vdso_start) >> PAGE_SHIFT;
+ vdso_pages = (vdso_end - vdso_start) >> PAGE_SHIFT;
pr_info("vdso: %ld pages (%ld code @ %p, %ld data @ %p)\n",
- vdso_pages + 1, vdso_pages, &vdso_start, 1L, vdso_data);
+ vdso_pages + 1, vdso_pages, vdso_start, 1L, vdso_data);
/* Allocate the vDSO pagelist, plus a page for the data. */
vdso_pagelist = kcalloc(vdso_pages + 1, sizeof(struct page *),
@@ -145,7 +160,7 @@ static int __init vdso_init(void)
/* Grab the vDSO code pages. */
- pfn = sym_to_pfn(&vdso_start);
+ pfn = sym_to_pfn(vdso_start);
for (i = 0; i < vdso_pages; i++)
vdso_pagelist[i + 1] = pfn_to_page(pfn + i);
@@ -220,10 +235,8 @@ void update_vsyscall(struct timekeeper *tk)
if (!use_syscall) {
/* tkr_mono.cycle_last == tkr_raw.cycle_last */
vdso_data->cs_cycle_last = tk->tkr_mono.cycle_last;
- vdso_data->raw_time_sec = tk->raw_time.tv_sec;
- vdso_data->raw_time_nsec = (tk->raw_time.tv_nsec <<
- tk->tkr_raw.shift) +
- tk->tkr_raw.xtime_nsec;
+ vdso_data->raw_time_sec = tk->raw_sec;
+ vdso_data->raw_time_nsec = tk->tkr_raw.xtime_nsec;
vdso_data->xtime_clock_sec = tk->xtime_sec;
vdso_data->xtime_clock_nsec = tk->tkr_mono.xtime_nsec;
vdso_data->cs_mono_mult = tk->tkr_mono.mult;
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index 987a00ee446c..fe56c268a7d9 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -72,22 +72,6 @@ PECOFF_FILE_ALIGNMENT = 0x200;
#define PECOFF_EDATA_PADDING
#endif
-#if defined(CONFIG_DEBUG_ALIGN_RODATA)
-/*
- * 4 KB granule: 1 level 2 entry
- * 16 KB granule: 128 level 3 entries, with contiguous bit
- * 64 KB granule: 32 level 3 entries, with contiguous bit
- */
-#define SEGMENT_ALIGN SZ_2M
-#else
-/*
- * 4 KB granule: 16 level 3 entries, with contiguous bit
- * 16 KB granule: 4 level 3 entries, without contiguous bit
- * 64 KB granule: 1 level 3 entry
- */
-#define SEGMENT_ALIGN SZ_64K
-#endif
-
SECTIONS
{
/*
@@ -192,7 +176,7 @@ SECTIONS
_data = .;
_sdata = .;
- RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
+ RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_ALIGN)
/*
* Data written with the MMU off but read with the MMU on requires
diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c
index b37446a8ffdb..5c7f657dd207 100644
--- a/arch/arm64/kvm/guest.c
+++ b/arch/arm64/kvm/guest.c
@@ -390,6 +390,9 @@ int kvm_arm_vcpu_arch_set_attr(struct kvm_vcpu *vcpu,
case KVM_ARM_VCPU_PMU_V3_CTRL:
ret = kvm_arm_pmu_v3_set_attr(vcpu, attr);
break;
+ case KVM_ARM_VCPU_TIMER_CTRL:
+ ret = kvm_arm_timer_set_attr(vcpu, attr);
+ break;
default:
ret = -ENXIO;
break;
@@ -407,6 +410,9 @@ int kvm_arm_vcpu_arch_get_attr(struct kvm_vcpu *vcpu,
case KVM_ARM_VCPU_PMU_V3_CTRL:
ret = kvm_arm_pmu_v3_get_attr(vcpu, attr);
break;
+ case KVM_ARM_VCPU_TIMER_CTRL:
+ ret = kvm_arm_timer_get_attr(vcpu, attr);
+ break;
default:
ret = -ENXIO;
break;
@@ -424,6 +430,9 @@ int kvm_arm_vcpu_arch_has_attr(struct kvm_vcpu *vcpu,
case KVM_ARM_VCPU_PMU_V3_CTRL:
ret = kvm_arm_pmu_v3_has_attr(vcpu, attr);
break;
+ case KVM_ARM_VCPU_TIMER_CTRL:
+ ret = kvm_arm_timer_has_attr(vcpu, attr);
+ break;
default:
ret = -ENXIO;
break;
diff --git a/arch/arm64/kvm/handle_exit.c b/arch/arm64/kvm/handle_exit.c
index fa1b18e364fc..7debb74843a0 100644
--- a/arch/arm64/kvm/handle_exit.c
+++ b/arch/arm64/kvm/handle_exit.c
@@ -84,11 +84,12 @@ static int kvm_handle_wfx(struct kvm_vcpu *vcpu, struct kvm_run *run)
if (kvm_vcpu_get_hsr(vcpu) & ESR_ELx_WFx_ISS_WFE) {
trace_kvm_wfx_arm64(*vcpu_pc(vcpu), true);
vcpu->stat.wfe_exit_stat++;
- kvm_vcpu_on_spin(vcpu);
+ kvm_vcpu_on_spin(vcpu, vcpu_mode_priv(vcpu));
} else {
trace_kvm_wfx_arm64(*vcpu_pc(vcpu), false);
vcpu->stat.wfi_exit_stat++;
kvm_vcpu_block(vcpu);
+ kvm_clear_request(KVM_REQ_UNHALT, vcpu);
}
kvm_skip_instr(vcpu, kvm_vcpu_trap_il_is32bit(vcpu));
diff --git a/arch/arm64/kvm/hyp/s2-setup.c b/arch/arm64/kvm/hyp/s2-setup.c
index b81f4091c909..a81f5e10fc8c 100644
--- a/arch/arm64/kvm/hyp/s2-setup.c
+++ b/arch/arm64/kvm/hyp/s2-setup.c
@@ -70,7 +70,7 @@ u32 __hyp_text __init_stage2_translation(void)
* Management in ID_AA64MMFR1_EL1 and enable the feature in VTCR_EL2.
*/
tmp = (read_sysreg(id_aa64mmfr1_el1) >> ID_AA64MMFR1_HADBS_SHIFT) & 0xf;
- if (IS_ENABLED(CONFIG_ARM64_HW_AFDBM) && tmp)
+ if (tmp)
val |= VTCR_EL2_HA;
/*
diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c
index aede1658aeda..945e79c641c4 100644
--- a/arch/arm64/kvm/hyp/switch.c
+++ b/arch/arm64/kvm/hyp/switch.c
@@ -350,6 +350,20 @@ again:
}
}
+ if (static_branch_unlikely(&vgic_v3_cpuif_trap) &&
+ exit_code == ARM_EXCEPTION_TRAP &&
+ (kvm_vcpu_trap_get_class(vcpu) == ESR_ELx_EC_SYS64 ||
+ kvm_vcpu_trap_get_class(vcpu) == ESR_ELx_EC_CP15_32)) {
+ int ret = __vgic_v3_perform_cpuif_access(vcpu);
+
+ if (ret == 1) {
+ __skip_instr(vcpu);
+ goto again;
+ }
+
+ /* 0 falls through to be handled out of EL2 */
+ }
+
fp_enabled = __fpsimd_enabled();
__sysreg_save_guest_state(guest_ctxt);
@@ -422,6 +436,7 @@ void __hyp_text __noreturn __hyp_panic(void)
vcpu = (struct kvm_vcpu *)read_sysreg(tpidr_el2);
host_ctxt = kern_hyp_va(vcpu->arch.host_cpu_context);
+ __timer_save_state(vcpu);
__deactivate_traps(vcpu);
__deactivate_vm(vcpu);
__sysreg_restore_host_state(host_ctxt);
diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index 561badf93de8..3256b9228e75 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -46,16 +46,6 @@ static const struct kvm_regs default_regs_reset32 = {
COMPAT_PSR_I_BIT | COMPAT_PSR_F_BIT),
};
-static const struct kvm_irq_level default_ptimer_irq = {
- .irq = 30,
- .level = 1,
-};
-
-static const struct kvm_irq_level default_vtimer_irq = {
- .irq = 27,
- .level = 1,
-};
-
static bool cpu_has_32bit_el1(void)
{
u64 pfr0;
@@ -108,8 +98,6 @@ int kvm_arch_dev_ioctl_check_extension(struct kvm *kvm, long ext)
*/
int kvm_reset_vcpu(struct kvm_vcpu *vcpu)
{
- const struct kvm_irq_level *cpu_vtimer_irq;
- const struct kvm_irq_level *cpu_ptimer_irq;
const struct kvm_regs *cpu_reset;
switch (vcpu->arch.target) {
@@ -122,8 +110,6 @@ int kvm_reset_vcpu(struct kvm_vcpu *vcpu)
cpu_reset = &default_regs_reset;
}
- cpu_vtimer_irq = &default_vtimer_irq;
- cpu_ptimer_irq = &default_ptimer_irq;
break;
}
@@ -137,5 +123,5 @@ int kvm_reset_vcpu(struct kvm_vcpu *vcpu)
kvm_pmu_vcpu_reset(vcpu);
/* Reset timer */
- return kvm_timer_vcpu_reset(vcpu, cpu_vtimer_irq, cpu_ptimer_irq);
+ return kvm_timer_vcpu_reset(vcpu);
}
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 0fe27024a2e1..2e070d3baf9f 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -56,7 +56,8 @@
*/
static bool read_from_write_only(struct kvm_vcpu *vcpu,
- const struct sys_reg_params *params)
+ struct sys_reg_params *params,
+ const struct sys_reg_desc *r)
{
WARN_ONCE(1, "Unexpected sys_reg read to write-only register\n");
print_sys_reg_instr(params);
@@ -64,6 +65,16 @@ static bool read_from_write_only(struct kvm_vcpu *vcpu,
return false;
}
+static bool write_to_read_only(struct kvm_vcpu *vcpu,
+ struct sys_reg_params *params,
+ const struct sys_reg_desc *r)
+{
+ WARN_ONCE(1, "Unexpected sys_reg write to read-only register\n");
+ print_sys_reg_instr(params);
+ kvm_inject_undefined(vcpu);
+ return false;
+}
+
/* 3 bits per cache level, as per CLIDR, but non-existent caches always 0 */
static u32 cache_levels;
@@ -93,7 +104,7 @@ static bool access_dcsw(struct kvm_vcpu *vcpu,
const struct sys_reg_desc *r)
{
if (!p->is_write)
- return read_from_write_only(vcpu, p);
+ return read_from_write_only(vcpu, p, r);
kvm_set_way_flush(vcpu);
return true;
@@ -135,7 +146,7 @@ static bool access_gic_sgi(struct kvm_vcpu *vcpu,
const struct sys_reg_desc *r)
{
if (!p->is_write)
- return read_from_write_only(vcpu, p);
+ return read_from_write_only(vcpu, p, r);
vgic_v3_dispatch_sgi(vcpu, p->regval);
@@ -753,7 +764,7 @@ static bool access_pmovs(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
if (p->is_write) {
if (r->CRm & 0x2)
/* accessing PMOVSSET_EL0 */
- kvm_pmu_overflow_set(vcpu, p->regval & mask);
+ vcpu_sys_reg(vcpu, PMOVSSET_EL0) |= (p->regval & mask);
else
/* accessing PMOVSCLR_EL0 */
vcpu_sys_reg(vcpu, PMOVSSET_EL0) &= ~(p->regval & mask);
@@ -773,7 +784,7 @@ static bool access_pmswinc(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
return trap_raz_wi(vcpu, p, r);
if (!p->is_write)
- return read_from_write_only(vcpu, p);
+ return read_from_write_only(vcpu, p, r);
if (pmu_write_swinc_el0_disabled(vcpu))
return false;
@@ -953,7 +964,15 @@ static const struct sys_reg_desc sys_reg_descs[] = {
{ SYS_DESC(SYS_VBAR_EL1), NULL, reset_val, VBAR_EL1, 0 },
+ { SYS_DESC(SYS_ICC_IAR0_EL1), write_to_read_only },
+ { SYS_DESC(SYS_ICC_EOIR0_EL1), read_from_write_only },
+ { SYS_DESC(SYS_ICC_HPPIR0_EL1), write_to_read_only },
+ { SYS_DESC(SYS_ICC_DIR_EL1), read_from_write_only },
+ { SYS_DESC(SYS_ICC_RPR_EL1), write_to_read_only },
{ SYS_DESC(SYS_ICC_SGI1R_EL1), access_gic_sgi },
+ { SYS_DESC(SYS_ICC_IAR1_EL1), write_to_read_only },
+ { SYS_DESC(SYS_ICC_EOIR1_EL1), read_from_write_only },
+ { SYS_DESC(SYS_ICC_HPPIR1_EL1), write_to_read_only },
{ SYS_DESC(SYS_ICC_SRE_EL1), access_gic_sre },
{ SYS_DESC(SYS_CONTEXTIDR_EL1), access_vm_reg, reset_val, CONTEXTIDR_EL1, 0 },
diff --git a/arch/arm64/kvm/trace.h b/arch/arm64/kvm/trace.h
index 7fb0008c4fa3..5188c7007169 100644
--- a/arch/arm64/kvm/trace.h
+++ b/arch/arm64/kvm/trace.h
@@ -93,6 +93,8 @@ TRACE_EVENT(kvm_arm_set_dreg32,
TP_printk("%s: 0x%08x", __entry->name, __entry->value)
);
+TRACE_DEFINE_SIZEOF(__u64);
+
TRACE_EVENT(kvm_arm_set_regset,
TP_PROTO(const char *type, int len, __u64 *control, __u64 *value),
TP_ARGS(type, len, control, value),
diff --git a/arch/arm64/kvm/vgic-sys-reg-v3.c b/arch/arm64/kvm/vgic-sys-reg-v3.c
index 6260b69e5622..c77d508b7462 100644
--- a/arch/arm64/kvm/vgic-sys-reg-v3.c
+++ b/arch/arm64/kvm/vgic-sys-reg-v3.c
@@ -208,29 +208,12 @@ static void vgic_v3_access_apr_reg(struct kvm_vcpu *vcpu,
static bool access_gic_aprn(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
const struct sys_reg_desc *r, u8 apr)
{
- struct vgic_cpu *vgic_v3_cpu = &vcpu->arch.vgic_cpu;
u8 idx = r->Op2 & 3;
- /*
- * num_pri_bits are initialized with HW supported values.
- * We can rely safely on num_pri_bits even if VM has not
- * restored ICC_CTLR_EL1 before restoring APnR registers.
- */
- switch (vgic_v3_cpu->num_pri_bits) {
- case 7:
- vgic_v3_access_apr_reg(vcpu, p, apr, idx);
- break;
- case 6:
- if (idx > 1)
- goto err;
- vgic_v3_access_apr_reg(vcpu, p, apr, idx);
- break;
- default:
- if (idx > 0)
- goto err;
- vgic_v3_access_apr_reg(vcpu, p, apr, idx);
- }
+ if (idx > vgic_v3_max_apr_idx(vcpu))
+ goto err;
+ vgic_v3_access_apr_reg(vcpu, p, apr, idx);
return true;
err:
if (!p->is_write)
@@ -268,36 +251,21 @@ static bool access_gic_sre(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
return true;
}
static const struct sys_reg_desc gic_v3_icc_reg_descs[] = {
- /* ICC_PMR_EL1 */
- { Op0(3), Op1(0), CRn(4), CRm(6), Op2(0), access_gic_pmr },
- /* ICC_BPR0_EL1 */
- { Op0(3), Op1(0), CRn(12), CRm(8), Op2(3), access_gic_bpr0 },
- /* ICC_AP0R0_EL1 */
- { Op0(3), Op1(0), CRn(12), CRm(8), Op2(4), access_gic_ap0r },
- /* ICC_AP0R1_EL1 */
- { Op0(3), Op1(0), CRn(12), CRm(8), Op2(5), access_gic_ap0r },
- /* ICC_AP0R2_EL1 */
- { Op0(3), Op1(0), CRn(12), CRm(8), Op2(6), access_gic_ap0r },
- /* ICC_AP0R3_EL1 */
- { Op0(3), Op1(0), CRn(12), CRm(8), Op2(7), access_gic_ap0r },
- /* ICC_AP1R0_EL1 */
- { Op0(3), Op1(0), CRn(12), CRm(9), Op2(0), access_gic_ap1r },
- /* ICC_AP1R1_EL1 */
- { Op0(3), Op1(0), CRn(12), CRm(9), Op2(1), access_gic_ap1r },
- /* ICC_AP1R2_EL1 */
- { Op0(3), Op1(0), CRn(12), CRm(9), Op2(2), access_gic_ap1r },
- /* ICC_AP1R3_EL1 */
- { Op0(3), Op1(0), CRn(12), CRm(9), Op2(3), access_gic_ap1r },
- /* ICC_BPR1_EL1 */
- { Op0(3), Op1(0), CRn(12), CRm(12), Op2(3), access_gic_bpr1 },
- /* ICC_CTLR_EL1 */
- { Op0(3), Op1(0), CRn(12), CRm(12), Op2(4), access_gic_ctlr },
- /* ICC_SRE_EL1 */
- { Op0(3), Op1(0), CRn(12), CRm(12), Op2(5), access_gic_sre },
- /* ICC_IGRPEN0_EL1 */
- { Op0(3), Op1(0), CRn(12), CRm(12), Op2(6), access_gic_grpen0 },
- /* ICC_GRPEN1_EL1 */
- { Op0(3), Op1(0), CRn(12), CRm(12), Op2(7), access_gic_grpen1 },
+ { SYS_DESC(SYS_ICC_PMR_EL1), access_gic_pmr },
+ { SYS_DESC(SYS_ICC_BPR0_EL1), access_gic_bpr0 },
+ { SYS_DESC(SYS_ICC_AP0R0_EL1), access_gic_ap0r },
+ { SYS_DESC(SYS_ICC_AP0R1_EL1), access_gic_ap0r },
+ { SYS_DESC(SYS_ICC_AP0R2_EL1), access_gic_ap0r },
+ { SYS_DESC(SYS_ICC_AP0R3_EL1), access_gic_ap0r },
+ { SYS_DESC(SYS_ICC_AP1R0_EL1), access_gic_ap1r },
+ { SYS_DESC(SYS_ICC_AP1R1_EL1), access_gic_ap1r },
+ { SYS_DESC(SYS_ICC_AP1R2_EL1), access_gic_ap1r },
+ { SYS_DESC(SYS_ICC_AP1R3_EL1), access_gic_ap1r },
+ { SYS_DESC(SYS_ICC_BPR1_EL1), access_gic_bpr1 },
+ { SYS_DESC(SYS_ICC_CTLR_EL1), access_gic_ctlr },
+ { SYS_DESC(SYS_ICC_SRE_EL1), access_gic_sre },
+ { SYS_DESC(SYS_ICC_IGRPEN0_EL1), access_gic_grpen0 },
+ { SYS_DESC(SYS_ICC_IGRPEN1_EL1), access_gic_grpen1 },
};
int vgic_v3_has_cpu_sysregs_attr(struct kvm_vcpu *vcpu, bool is_write, u64 id,
diff --git a/arch/arm64/lib/Makefile b/arch/arm64/lib/Makefile
index c86b7909ef31..a0abc142c92b 100644
--- a/arch/arm64/lib/Makefile
+++ b/arch/arm64/lib/Makefile
@@ -17,3 +17,5 @@ CFLAGS_atomic_ll_sc.o := -fcall-used-x0 -ffixed-x1 -ffixed-x2 \
-fcall-saved-x10 -fcall-saved-x11 -fcall-saved-x12 \
-fcall-saved-x13 -fcall-saved-x14 -fcall-saved-x15 \
-fcall-saved-x18
+
+lib-$(CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE) += uaccess_flushcache.o
diff --git a/arch/arm64/lib/copy_page.S b/arch/arm64/lib/copy_page.S
index c3cd65e31814..076c43715e64 100644
--- a/arch/arm64/lib/copy_page.S
+++ b/arch/arm64/lib/copy_page.S
@@ -30,9 +30,10 @@
*/
ENTRY(copy_page)
alternative_if ARM64_HAS_NO_HW_PREFETCH
- # Prefetch two cache lines ahead.
- prfm pldl1strm, [x1, #128]
- prfm pldl1strm, [x1, #256]
+ // Prefetch three cache lines ahead.
+ prfm pldl1strm, [x1, #128]
+ prfm pldl1strm, [x1, #256]
+ prfm pldl1strm, [x1, #384]
alternative_else_nop_endif
ldp x2, x3, [x1]
@@ -50,7 +51,7 @@ alternative_else_nop_endif
subs x18, x18, #128
alternative_if ARM64_HAS_NO_HW_PREFETCH
- prfm pldl1strm, [x1, #384]
+ prfm pldl1strm, [x1, #384]
alternative_else_nop_endif
stnp x2, x3, [x0]
diff --git a/arch/arm64/lib/uaccess_flushcache.c b/arch/arm64/lib/uaccess_flushcache.c
new file mode 100644
index 000000000000..b6ceafdb8b72
--- /dev/null
+++ b/arch/arm64/lib/uaccess_flushcache.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2017 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/uaccess.h>
+#include <asm/barrier.h>
+#include <asm/cacheflush.h>
+
+void memcpy_flushcache(void *dst, const void *src, size_t cnt)
+{
+ /*
+ * We assume this should not be called with @dst pointing to
+ * non-cacheable memory, such that we don't need an explicit
+ * barrier to order the cache maintenance against the memcpy.
+ */
+ memcpy(dst, src, cnt);
+ __clean_dcache_area_pop(dst, cnt);
+}
+EXPORT_SYMBOL_GPL(memcpy_flushcache);
+
+void memcpy_page_flushcache(char *to, struct page *page, size_t offset,
+ size_t len)
+{
+ memcpy_flushcache(to, page_address(page) + offset, len);
+}
+
+unsigned long __copy_user_flushcache(void *to, const void __user *from,
+ unsigned long n)
+{
+ unsigned long rc = __arch_copy_from_user(to, from, n);
+
+ /* See above */
+ __clean_dcache_area_pop(to, n - rc);
+ return rc;
+}
diff --git a/arch/arm64/mm/cache.S b/arch/arm64/mm/cache.S
index 83c27b6e6dca..7f1dbe962cf5 100644
--- a/arch/arm64/mm/cache.S
+++ b/arch/arm64/mm/cache.S
@@ -109,20 +109,25 @@ ENTRY(__clean_dcache_area_pou)
ENDPROC(__clean_dcache_area_pou)
/*
- * __dma_inv_area(start, size)
- * - start - virtual start address of region
+ * __inval_dcache_area(kaddr, size)
+ *
+ * Ensure that any D-cache lines for the interval [kaddr, kaddr+size)
+ * are invalidated. Any partial lines at the ends of the interval are
+ * also cleaned to PoC to prevent data loss.
+ *
+ * - kaddr - kernel address
* - size - size in question
*/
-__dma_inv_area:
- add x1, x1, x0
+ENTRY(__inval_dcache_area)
/* FALLTHROUGH */
/*
- * __inval_cache_range(start, end)
- * - start - start address of region
- * - end - end address of region
+ * __dma_inv_area(start, size)
+ * - start - virtual start address of region
+ * - size - size in question
*/
-ENTRY(__inval_cache_range)
+__dma_inv_area:
+ add x1, x1, x0
dcache_line_size x2, x3
sub x3, x2, #1
tst x1, x3 // end cache line aligned?
@@ -140,7 +145,7 @@ ENTRY(__inval_cache_range)
b.lo 2b
dsb sy
ret
-ENDPIPROC(__inval_cache_range)
+ENDPIPROC(__inval_dcache_area)
ENDPROC(__dma_inv_area)
/*
@@ -167,6 +172,20 @@ ENDPIPROC(__clean_dcache_area_poc)
ENDPROC(__dma_clean_area)
/*
+ * __clean_dcache_area_pop(kaddr, size)
+ *
+ * Ensure that any D-cache lines for the interval [kaddr, kaddr+size)
+ * are cleaned to the PoP.
+ *
+ * - kaddr - kernel address
+ * - size - size in question
+ */
+ENTRY(__clean_dcache_area_pop)
+ dcache_by_line_op cvap, sy, x0, x1, x2, x3
+ ret
+ENDPIPROC(__clean_dcache_area_pop)
+
+/*
* __dma_flush_area(start, size)
*
* clean & invalidate D / U line
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index 3216e098c058..614af886b7ef 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -42,7 +42,7 @@ static pgprot_t __get_dma_pgprot(unsigned long attrs, pgprot_t prot,
return prot;
}
-static struct gen_pool *atomic_pool;
+static struct gen_pool *atomic_pool __ro_after_init;
#define DEFAULT_DMA_COHERENT_POOL_SIZE SZ_256K
static size_t atomic_pool_size __initdata = DEFAULT_DMA_COHERENT_POOL_SIZE;
@@ -95,11 +95,6 @@ static void *__dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flags,
unsigned long attrs)
{
- if (dev == NULL) {
- WARN_ONCE(1, "Use an actual device structure for DMA allocation\n");
- return NULL;
- }
-
if (IS_ENABLED(CONFIG_ZONE_DMA) &&
dev->coherent_dma_mask <= DMA_BIT_MASK(32))
flags |= GFP_DMA;
@@ -128,10 +123,6 @@ static void __dma_free_coherent(struct device *dev, size_t size,
bool freed;
phys_addr_t paddr = dma_to_phys(dev, dma_handle);
- if (dev == NULL) {
- WARN_ONCE(1, "Use an actual device structure for DMA allocation\n");
- return;
- }
freed = dma_release_from_contiguous(dev,
phys_to_page(paddr),
@@ -184,7 +175,6 @@ static void *__dma_alloc(struct device *dev, size_t size,
no_map:
__dma_free_coherent(dev, size, ptr, *dma_handle, attrs);
no_mem:
- *dma_handle = DMA_ERROR_CODE;
return NULL;
}
@@ -339,7 +329,7 @@ static int __swiotlb_mmap(struct device *dev,
vma->vm_page_prot = __get_dma_pgprot(attrs, vma->vm_page_prot,
is_device_dma_coherent(dev));
- if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
+ if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
return ret;
return __swiotlb_mmap_pfn(vma, pfn, size);
@@ -435,7 +425,7 @@ static int __init atomic_pool_init(void)
gen_pool_set_algo(atomic_pool,
gen_pool_first_fit_order_align,
- (void *)PAGE_SHIFT);
+ NULL);
pr_info("DMA: preallocated %zu KiB pool for atomic allocations\n",
atomic_pool_size / 1024);
@@ -487,7 +477,7 @@ static dma_addr_t __dummy_map_page(struct device *dev, struct page *page,
enum dma_data_direction dir,
unsigned long attrs)
{
- return DMA_ERROR_CODE;
+ return 0;
}
static void __dummy_unmap_page(struct device *dev, dma_addr_t dev_addr,
@@ -716,7 +706,7 @@ static int __iommu_mmap_attrs(struct device *dev, struct vm_area_struct *vma,
vma->vm_page_prot = __get_dma_pgprot(attrs, vma->vm_page_prot,
is_device_dma_coherent(dev));
- if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
+ if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
return ret;
if (attrs & DMA_ATTR_FORCE_CONTIGUOUS) {
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 37b95dff0b07..b64958b23a7f 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -31,8 +31,10 @@
#include <linux/highmem.h>
#include <linux/perf_event.h>
#include <linux/preempt.h>
+#include <linux/hugetlb.h>
#include <asm/bug.h>
+#include <asm/cmpxchg.h>
#include <asm/cpufeature.h>
#include <asm/exception.h>
#include <asm/debug-monitors.h>
@@ -42,6 +44,8 @@
#include <asm/pgtable.h>
#include <asm/tlbflush.h>
+#include <acpi/ghes.h>
+
struct fault_info {
int (*fn)(unsigned long addr, unsigned int esr,
struct pt_regs *regs);
@@ -79,19 +83,79 @@ static inline int notify_page_fault(struct pt_regs *regs, unsigned int esr)
}
#endif
+static void data_abort_decode(unsigned int esr)
+{
+ pr_alert("Data abort info:\n");
+
+ if (esr & ESR_ELx_ISV) {
+ pr_alert(" Access size = %u byte(s)\n",
+ 1U << ((esr & ESR_ELx_SAS) >> ESR_ELx_SAS_SHIFT));
+ pr_alert(" SSE = %lu, SRT = %lu\n",
+ (esr & ESR_ELx_SSE) >> ESR_ELx_SSE_SHIFT,
+ (esr & ESR_ELx_SRT_MASK) >> ESR_ELx_SRT_SHIFT);
+ pr_alert(" SF = %lu, AR = %lu\n",
+ (esr & ESR_ELx_SF) >> ESR_ELx_SF_SHIFT,
+ (esr & ESR_ELx_AR) >> ESR_ELx_AR_SHIFT);
+ } else {
+ pr_alert(" ISV = 0, ISS = 0x%08lx\n", esr & ESR_ELx_ISS_MASK);
+ }
+
+ pr_alert(" CM = %lu, WnR = %lu\n",
+ (esr & ESR_ELx_CM) >> ESR_ELx_CM_SHIFT,
+ (esr & ESR_ELx_WNR) >> ESR_ELx_WNR_SHIFT);
+}
+
+/*
+ * Decode mem abort information
+ */
+static void mem_abort_decode(unsigned int esr)
+{
+ pr_alert("Mem abort info:\n");
+
+ pr_alert(" Exception class = %s, IL = %u bits\n",
+ esr_get_class_string(esr),
+ (esr & ESR_ELx_IL) ? 32 : 16);
+ pr_alert(" SET = %lu, FnV = %lu\n",
+ (esr & ESR_ELx_SET_MASK) >> ESR_ELx_SET_SHIFT,
+ (esr & ESR_ELx_FnV) >> ESR_ELx_FnV_SHIFT);
+ pr_alert(" EA = %lu, S1PTW = %lu\n",
+ (esr & ESR_ELx_EA) >> ESR_ELx_EA_SHIFT,
+ (esr & ESR_ELx_S1PTW) >> ESR_ELx_S1PTW_SHIFT);
+
+ if (esr_is_data_abort(esr))
+ data_abort_decode(esr);
+}
+
/*
- * Dump out the page tables associated with 'addr' in mm 'mm'.
+ * Dump out the page tables associated with 'addr' in the currently active mm.
*/
-void show_pte(struct mm_struct *mm, unsigned long addr)
+void show_pte(unsigned long addr)
{
+ struct mm_struct *mm;
pgd_t *pgd;
- if (!mm)
+ if (addr < TASK_SIZE) {
+ /* TTBR0 */
+ mm = current->active_mm;
+ if (mm == &init_mm) {
+ pr_alert("[%016lx] user address but active_mm is swapper\n",
+ addr);
+ return;
+ }
+ } else if (addr >= VA_START) {
+ /* TTBR1 */
mm = &init_mm;
+ } else {
+ pr_alert("[%016lx] address between user and kernel address ranges\n",
+ addr);
+ return;
+ }
- pr_alert("pgd = %p\n", mm->pgd);
+ pr_alert("%s pgtable: %luk pages, %u-bit VAs, pgd = %p\n",
+ mm == &init_mm ? "swapper" : "user", PAGE_SIZE / SZ_1K,
+ VA_BITS, mm->pgd);
pgd = pgd_offset(mm, addr);
- pr_alert("[%08lx] *pgd=%016llx", addr, pgd_val(*pgd));
+ pr_alert("[%016lx] *pgd=%016llx", addr, pgd_val(*pgd));
do {
pud_t *pud;
@@ -119,7 +183,6 @@ void show_pte(struct mm_struct *mm, unsigned long addr)
pr_cont("\n");
}
-#ifdef CONFIG_ARM64_HW_AFDBM
/*
* This function sets the access flags (dirty, accessed), as well as write
* permission, and only to a more permissive setting.
@@ -134,40 +197,33 @@ int ptep_set_access_flags(struct vm_area_struct *vma,
unsigned long address, pte_t *ptep,
pte_t entry, int dirty)
{
- pteval_t old_pteval;
- unsigned int tmp;
+ pteval_t old_pteval, pteval;
if (pte_same(*ptep, entry))
return 0;
/* only preserve the access flags and write permission */
- pte_val(entry) &= PTE_AF | PTE_WRITE | PTE_DIRTY;
-
- /*
- * PTE_RDONLY is cleared by default in the asm below, so set it in
- * back if necessary (read-only or clean PTE).
- */
- if (!pte_write(entry) || !pte_sw_dirty(entry))
- pte_val(entry) |= PTE_RDONLY;
+ pte_val(entry) &= PTE_RDONLY | PTE_AF | PTE_WRITE | PTE_DIRTY;
/*
* Setting the flags must be done atomically to avoid racing with the
- * hardware update of the access/dirty state.
+ * hardware update of the access/dirty state. The PTE_RDONLY bit must
+ * be set to the most permissive (lowest value) of *ptep and entry
+ * (calculated as: a & b == ~(~a | ~b)).
*/
- asm volatile("// ptep_set_access_flags\n"
- " prfm pstl1strm, %2\n"
- "1: ldxr %0, %2\n"
- " and %0, %0, %3 // clear PTE_RDONLY\n"
- " orr %0, %0, %4 // set flags\n"
- " stxr %w1, %0, %2\n"
- " cbnz %w1, 1b\n"
- : "=&r" (old_pteval), "=&r" (tmp), "+Q" (pte_val(*ptep))
- : "L" (~PTE_RDONLY), "r" (pte_val(entry)));
+ pte_val(entry) ^= PTE_RDONLY;
+ pteval = READ_ONCE(pte_val(*ptep));
+ do {
+ old_pteval = pteval;
+ pteval ^= PTE_RDONLY;
+ pteval |= pte_val(entry);
+ pteval ^= PTE_RDONLY;
+ pteval = cmpxchg_relaxed(&pte_val(*ptep), old_pteval, pteval);
+ } while (pteval != old_pteval);
flush_tlb_fix_spurious_fault(vma, address);
return 1;
}
-#endif
static bool is_el1_instruction_abort(unsigned int esr)
{
@@ -196,8 +252,8 @@ static inline bool is_permission_fault(unsigned int esr, struct pt_regs *regs,
/*
* The kernel tried to access some page that wasn't present.
*/
-static void __do_kernel_fault(struct mm_struct *mm, unsigned long addr,
- unsigned int esr, struct pt_regs *regs)
+static void __do_kernel_fault(unsigned long addr, unsigned int esr,
+ struct pt_regs *regs)
{
const char *msg;
@@ -227,7 +283,9 @@ static void __do_kernel_fault(struct mm_struct *mm, unsigned long addr,
pr_alert("Unable to handle kernel %s at virtual address %08lx\n", msg,
addr);
- show_pte(mm, addr);
+ mem_abort_decode(esr);
+
+ show_pte(addr);
die("Oops", regs, esr);
bust_spinlocks(0);
do_exit(SIGKILL);
@@ -239,18 +297,20 @@ static void __do_kernel_fault(struct mm_struct *mm, unsigned long addr,
*/
static void __do_user_fault(struct task_struct *tsk, unsigned long addr,
unsigned int esr, unsigned int sig, int code,
- struct pt_regs *regs)
+ struct pt_regs *regs, int fault)
{
struct siginfo si;
const struct fault_info *inf;
+ unsigned int lsb = 0;
if (unhandled_signal(tsk, sig) && show_unhandled_signals_ratelimited()) {
inf = esr_to_fault_info(esr);
- pr_info("%s[%d]: unhandled %s (%d) at 0x%08lx, esr 0x%03x\n",
+ pr_info("%s[%d]: unhandled %s (%d) at 0x%08lx, esr 0x%03x",
tsk->comm, task_pid_nr(tsk), inf->name, sig,
addr, esr);
- show_pte(tsk->mm, addr);
- show_regs(regs);
+ print_vma_addr(KERN_CONT ", in ", regs->pc);
+ pr_cont("\n");
+ __show_regs(regs);
}
tsk->thread.fault_address = addr;
@@ -259,13 +319,23 @@ static void __do_user_fault(struct task_struct *tsk, unsigned long addr,
si.si_errno = 0;
si.si_code = code;
si.si_addr = (void __user *)addr;
+ /*
+ * Either small page or large page may be poisoned.
+ * In other words, VM_FAULT_HWPOISON_LARGE and
+ * VM_FAULT_HWPOISON are mutually exclusive.
+ */
+ if (fault & VM_FAULT_HWPOISON_LARGE)
+ lsb = hstate_index_to_shift(VM_FAULT_GET_HINDEX(fault));
+ else if (fault & VM_FAULT_HWPOISON)
+ lsb = PAGE_SHIFT;
+ si.si_addr_lsb = lsb;
+
force_sig_info(sig, &si, tsk);
}
static void do_bad_area(unsigned long addr, unsigned int esr, struct pt_regs *regs)
{
struct task_struct *tsk = current;
- struct mm_struct *mm = tsk->active_mm;
const struct fault_info *inf;
/*
@@ -274,9 +344,9 @@ static void do_bad_area(unsigned long addr, unsigned int esr, struct pt_regs *re
*/
if (user_mode(regs)) {
inf = esr_to_fault_info(esr);
- __do_user_fault(tsk, addr, esr, inf->sig, inf->code, regs);
+ __do_user_fault(tsk, addr, esr, inf->sig, inf->code, regs, 0);
} else
- __do_kernel_fault(mm, addr, esr, regs);
+ __do_kernel_fault(addr, esr, regs);
}
#define VM_FAULT_BADMAP 0x010000
@@ -329,7 +399,7 @@ static int __kprobes do_page_fault(unsigned long addr, unsigned int esr,
{
struct task_struct *tsk;
struct mm_struct *mm;
- int fault, sig, code;
+ int fault, sig, code, major = 0;
unsigned long vm_flags = VM_READ | VM_WRITE;
unsigned int mm_flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
@@ -368,6 +438,8 @@ static int __kprobes do_page_fault(unsigned long addr, unsigned int esr,
die("Accessing user space memory outside uaccess.h routines", regs, esr);
}
+ perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, addr);
+
/*
* As per x86, we may deadlock here. However, since the kernel only
* validly references user space from well defined areas of the code,
@@ -391,24 +463,45 @@ retry:
}
fault = __do_page_fault(mm, addr, mm_flags, vm_flags, tsk);
+ major |= fault & VM_FAULT_MAJOR;
- /*
- * If we need to retry but a fatal signal is pending, handle the
- * signal first. We do not need to release the mmap_sem because it
- * would already be released in __lock_page_or_retry in mm/filemap.c.
- */
- if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
- return 0;
+ if (fault & VM_FAULT_RETRY) {
+ /*
+ * If we need to retry but a fatal signal is pending,
+ * handle the signal first. We do not need to release
+ * the mmap_sem because it would already be released
+ * in __lock_page_or_retry in mm/filemap.c.
+ */
+ if (fatal_signal_pending(current)) {
+ if (!user_mode(regs))
+ goto no_context;
+ return 0;
+ }
+
+ /*
+ * Clear FAULT_FLAG_ALLOW_RETRY to avoid any risk of
+ * starvation.
+ */
+ if (mm_flags & FAULT_FLAG_ALLOW_RETRY) {
+ mm_flags &= ~FAULT_FLAG_ALLOW_RETRY;
+ mm_flags |= FAULT_FLAG_TRIED;
+ goto retry;
+ }
+ }
+ up_read(&mm->mmap_sem);
/*
- * Major/minor page fault accounting is only done on the initial
- * attempt. If we go through a retry, it is extremely likely that the
- * page will be found in page cache at that point.
+ * Handle the "normal" (no error) case first.
*/
-
- perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, addr);
- if (mm_flags & FAULT_FLAG_ALLOW_RETRY) {
- if (fault & VM_FAULT_MAJOR) {
+ if (likely(!(fault & (VM_FAULT_ERROR | VM_FAULT_BADMAP |
+ VM_FAULT_BADACCESS)))) {
+ /*
+ * Major/minor page fault accounting is only done
+ * once. If we go through a retry, it is extremely
+ * likely that the page will be found in page cache at
+ * that point.
+ */
+ if (major) {
tsk->maj_flt++;
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs,
addr);
@@ -417,25 +510,9 @@ retry:
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs,
addr);
}
- if (fault & VM_FAULT_RETRY) {
- /*
- * Clear FAULT_FLAG_ALLOW_RETRY to avoid any risk of
- * starvation.
- */
- mm_flags &= ~FAULT_FLAG_ALLOW_RETRY;
- mm_flags |= FAULT_FLAG_TRIED;
- goto retry;
- }
- }
-
- up_read(&mm->mmap_sem);
- /*
- * Handle the "normal" case first - VM_FAULT_MAJOR
- */
- if (likely(!(fault & (VM_FAULT_ERROR | VM_FAULT_BADMAP |
- VM_FAULT_BADACCESS))))
return 0;
+ }
/*
* If we are in kernel mode at this point, we have no context to
@@ -461,6 +538,9 @@ retry:
*/
sig = SIGBUS;
code = BUS_ADRERR;
+ } else if (fault & (VM_FAULT_HWPOISON | VM_FAULT_HWPOISON_LARGE)) {
+ sig = SIGBUS;
+ code = BUS_MCEERR_AR;
} else {
/*
* Something tried to access memory that isn't in our memory
@@ -471,11 +551,11 @@ retry:
SEGV_ACCERR : SEGV_MAPERR;
}
- __do_user_fault(tsk, addr, esr, sig, code, regs);
+ __do_user_fault(tsk, addr, esr, sig, code, regs, fault);
return 0;
no_context:
- __do_kernel_fault(mm, addr, esr, regs);
+ __do_kernel_fault(addr, esr, regs);
return 0;
}
@@ -522,6 +602,47 @@ static int do_bad(unsigned long addr, unsigned int esr, struct pt_regs *regs)
return 1;
}
+/*
+ * This abort handler deals with Synchronous External Abort.
+ * It calls notifiers, and then returns "fault".
+ */
+static int do_sea(unsigned long addr, unsigned int esr, struct pt_regs *regs)
+{
+ struct siginfo info;
+ const struct fault_info *inf;
+ int ret = 0;
+
+ inf = esr_to_fault_info(esr);
+ pr_err("Synchronous External Abort: %s (0x%08x) at 0x%016lx\n",
+ inf->name, esr, addr);
+
+ /*
+ * Synchronous aborts may interrupt code which had interrupts masked.
+ * Before calling out into the wider kernel tell the interested
+ * subsystems.
+ */
+ if (IS_ENABLED(CONFIG_ACPI_APEI_SEA)) {
+ if (interrupts_enabled(regs))
+ nmi_enter();
+
+ ret = ghes_notify_sea();
+
+ if (interrupts_enabled(regs))
+ nmi_exit();
+ }
+
+ info.si_signo = SIGBUS;
+ info.si_errno = 0;
+ info.si_code = 0;
+ if (esr & ESR_ELx_FnV)
+ info.si_addr = NULL;
+ else
+ info.si_addr = (void __user *)addr;
+ arm64_notify_die("", regs, &info, esr);
+
+ return ret;
+}
+
static const struct fault_info fault_info[] = {
{ do_bad, SIGBUS, 0, "ttbr address size fault" },
{ do_bad, SIGBUS, 0, "level 1 address size fault" },
@@ -530,7 +651,7 @@ static const struct fault_info fault_info[] = {
{ do_translation_fault, SIGSEGV, SEGV_MAPERR, "level 0 translation fault" },
{ do_translation_fault, SIGSEGV, SEGV_MAPERR, "level 1 translation fault" },
{ do_translation_fault, SIGSEGV, SEGV_MAPERR, "level 2 translation fault" },
- { do_page_fault, SIGSEGV, SEGV_MAPERR, "level 3 translation fault" },
+ { do_translation_fault, SIGSEGV, SEGV_MAPERR, "level 3 translation fault" },
{ do_bad, SIGBUS, 0, "unknown 8" },
{ do_page_fault, SIGSEGV, SEGV_ACCERR, "level 1 access flag fault" },
{ do_page_fault, SIGSEGV, SEGV_ACCERR, "level 2 access flag fault" },
@@ -539,22 +660,22 @@ static const struct fault_info fault_info[] = {
{ do_page_fault, SIGSEGV, SEGV_ACCERR, "level 1 permission fault" },
{ do_page_fault, SIGSEGV, SEGV_ACCERR, "level 2 permission fault" },
{ do_page_fault, SIGSEGV, SEGV_ACCERR, "level 3 permission fault" },
- { do_bad, SIGBUS, 0, "synchronous external abort" },
+ { do_sea, SIGBUS, 0, "synchronous external abort" },
{ do_bad, SIGBUS, 0, "unknown 17" },
{ do_bad, SIGBUS, 0, "unknown 18" },
{ do_bad, SIGBUS, 0, "unknown 19" },
- { do_bad, SIGBUS, 0, "synchronous external abort (translation table walk)" },
- { do_bad, SIGBUS, 0, "synchronous external abort (translation table walk)" },
- { do_bad, SIGBUS, 0, "synchronous external abort (translation table walk)" },
- { do_bad, SIGBUS, 0, "synchronous external abort (translation table walk)" },
- { do_bad, SIGBUS, 0, "synchronous parity error" },
+ { do_sea, SIGBUS, 0, "level 0 (translation table walk)" },
+ { do_sea, SIGBUS, 0, "level 1 (translation table walk)" },
+ { do_sea, SIGBUS, 0, "level 2 (translation table walk)" },
+ { do_sea, SIGBUS, 0, "level 3 (translation table walk)" },
+ { do_sea, SIGBUS, 0, "synchronous parity or ECC error" },
{ do_bad, SIGBUS, 0, "unknown 25" },
{ do_bad, SIGBUS, 0, "unknown 26" },
{ do_bad, SIGBUS, 0, "unknown 27" },
- { do_bad, SIGBUS, 0, "synchronous parity error (translation table walk)" },
- { do_bad, SIGBUS, 0, "synchronous parity error (translation table walk)" },
- { do_bad, SIGBUS, 0, "synchronous parity error (translation table walk)" },
- { do_bad, SIGBUS, 0, "synchronous parity error (translation table walk)" },
+ { do_sea, SIGBUS, 0, "level 0 synchronous parity error (translation table walk)" },
+ { do_sea, SIGBUS, 0, "level 1 synchronous parity error (translation table walk)" },
+ { do_sea, SIGBUS, 0, "level 2 synchronous parity error (translation table walk)" },
+ { do_sea, SIGBUS, 0, "level 3 synchronous parity error (translation table walk)" },
{ do_bad, SIGBUS, 0, "unknown 32" },
{ do_alignment_fault, SIGBUS, BUS_ADRALN, "alignment fault" },
{ do_bad, SIGBUS, 0, "unknown 34" },
@@ -590,6 +711,23 @@ static const struct fault_info fault_info[] = {
};
/*
+ * Handle Synchronous External Aborts that occur in a guest kernel.
+ *
+ * The return value will be zero if the SEA was successfully handled
+ * and non-zero if there was an error processing the error or there was
+ * no error to process.
+ */
+int handle_guest_sea(phys_addr_t addr, unsigned int esr)
+{
+ int ret = -ENOENT;
+
+ if (IS_ENABLED(CONFIG_ACPI_APEI_SEA))
+ ret = ghes_notify_sea();
+
+ return ret;
+}
+
+/*
* Dispatch a data abort to the relevant handler.
*/
asmlinkage void __exception do_mem_abort(unsigned long addr, unsigned int esr,
@@ -604,6 +742,8 @@ asmlinkage void __exception do_mem_abort(unsigned long addr, unsigned int esr,
pr_alert("Unhandled fault: %s (0x%08x) at 0x%016lx\n",
inf->name, esr, addr);
+ mem_abort_decode(esr);
+
info.si_signo = inf->sig;
info.si_errno = 0;
info.si_code = inf->code;
diff --git a/arch/arm64/mm/flush.c b/arch/arm64/mm/flush.c
index 21a8d828cbf4..e36ed5087b5c 100644
--- a/arch/arm64/mm/flush.c
+++ b/arch/arm64/mm/flush.c
@@ -83,3 +83,19 @@ EXPORT_SYMBOL(flush_dcache_page);
* Additional functions defined in assembly.
*/
EXPORT_SYMBOL(flush_icache_range);
+
+#ifdef CONFIG_ARCH_HAS_PMEM_API
+void arch_wb_cache_pmem(void *addr, size_t size)
+{
+ /* Ensure order against any prior non-cacheable writes */
+ dmb(osh);
+ __clean_dcache_area_pop(addr, size);
+}
+EXPORT_SYMBOL_GPL(arch_wb_cache_pmem);
+
+void arch_invalidate_pmem(void *addr, size_t size)
+{
+ __inval_dcache_area(addr, size);
+}
+EXPORT_SYMBOL_GPL(arch_invalidate_pmem);
+#endif
diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
index 7514a000e361..6cb0fa92a651 100644
--- a/arch/arm64/mm/hugetlbpage.c
+++ b/arch/arm64/mm/hugetlbpage.c
@@ -41,16 +41,24 @@ int pud_huge(pud_t pud)
#endif
}
+/*
+ * Select all bits except the pfn
+ */
+static inline pgprot_t pte_pgprot(pte_t pte)
+{
+ unsigned long pfn = pte_pfn(pte);
+
+ return __pgprot(pte_val(pfn_pte(pfn, __pgprot(0))) ^ pte_val(pte));
+}
+
static int find_num_contig(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pte, size_t *pgsize)
+ pte_t *ptep, size_t *pgsize)
{
pgd_t *pgd = pgd_offset(mm, addr);
pud_t *pud;
pmd_t *pmd;
*pgsize = PAGE_SIZE;
- if (!pte_cont(pte))
- return 1;
pud = pud_offset(pgd, addr);
pmd = pmd_offset(pud, addr);
if ((pte_t *)pmd == ptep) {
@@ -60,32 +68,138 @@ static int find_num_contig(struct mm_struct *mm, unsigned long addr,
return CONT_PTES;
}
+static inline int num_contig_ptes(unsigned long size, size_t *pgsize)
+{
+ int contig_ptes = 0;
+
+ *pgsize = size;
+
+ switch (size) {
+#ifdef CONFIG_ARM64_4K_PAGES
+ case PUD_SIZE:
+#endif
+ case PMD_SIZE:
+ contig_ptes = 1;
+ break;
+ case CONT_PMD_SIZE:
+ *pgsize = PMD_SIZE;
+ contig_ptes = CONT_PMDS;
+ break;
+ case CONT_PTE_SIZE:
+ *pgsize = PAGE_SIZE;
+ contig_ptes = CONT_PTES;
+ break;
+ }
+
+ return contig_ptes;
+}
+
+/*
+ * Changing some bits of contiguous entries requires us to follow a
+ * Break-Before-Make approach, breaking the whole contiguous set
+ * before we can change any entries. See ARM DDI 0487A.k_iss10775,
+ * "Misprogramming of the Contiguous bit", page D4-1762.
+ *
+ * This helper performs the break step.
+ */
+static pte_t get_clear_flush(struct mm_struct *mm,
+ unsigned long addr,
+ pte_t *ptep,
+ unsigned long pgsize,
+ unsigned long ncontig)
+{
+ struct vm_area_struct vma = { .vm_mm = mm };
+ pte_t orig_pte = huge_ptep_get(ptep);
+ bool valid = pte_valid(orig_pte);
+ unsigned long i, saddr = addr;
+
+ for (i = 0; i < ncontig; i++, addr += pgsize, ptep++) {
+ pte_t pte = ptep_get_and_clear(mm, addr, ptep);
+
+ /*
+ * If HW_AFDBM is enabled, then the HW could turn on
+ * the dirty bit for any page in the set, so check
+ * them all. All hugetlb entries are already young.
+ */
+ if (pte_dirty(pte))
+ orig_pte = pte_mkdirty(orig_pte);
+ }
+
+ if (valid)
+ flush_tlb_range(&vma, saddr, addr);
+ return orig_pte;
+}
+
+/*
+ * Changing some bits of contiguous entries requires us to follow a
+ * Break-Before-Make approach, breaking the whole contiguous set
+ * before we can change any entries. See ARM DDI 0487A.k_iss10775,
+ * "Misprogramming of the Contiguous bit", page D4-1762.
+ *
+ * This helper performs the break step for use cases where the
+ * original pte is not needed.
+ */
+static void clear_flush(struct mm_struct *mm,
+ unsigned long addr,
+ pte_t *ptep,
+ unsigned long pgsize,
+ unsigned long ncontig)
+{
+ struct vm_area_struct vma = { .vm_mm = mm };
+ unsigned long i, saddr = addr;
+
+ for (i = 0; i < ncontig; i++, addr += pgsize, ptep++)
+ pte_clear(mm, addr, ptep);
+
+ flush_tlb_range(&vma, saddr, addr);
+}
+
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte)
{
size_t pgsize;
int i;
- int ncontig = find_num_contig(mm, addr, ptep, pte, &pgsize);
- unsigned long pfn;
+ int ncontig;
+ unsigned long pfn, dpfn;
pgprot_t hugeprot;
- if (ncontig == 1) {
+ /*
+ * Code needs to be expanded to handle huge swap and migration
+ * entries. Needed for HUGETLB and MEMORY_FAILURE.
+ */
+ WARN_ON(!pte_present(pte));
+
+ if (!pte_cont(pte)) {
set_pte_at(mm, addr, ptep, pte);
return;
}
+ ncontig = find_num_contig(mm, addr, ptep, &pgsize);
pfn = pte_pfn(pte);
- hugeprot = __pgprot(pte_val(pfn_pte(pfn, __pgprot(0))) ^ pte_val(pte));
- for (i = 0; i < ncontig; i++) {
+ dpfn = pgsize >> PAGE_SHIFT;
+ hugeprot = pte_pgprot(pte);
+
+ clear_flush(mm, addr, ptep, pgsize, ncontig);
+
+ for (i = 0; i < ncontig; i++, ptep++, addr += pgsize, pfn += dpfn) {
pr_debug("%s: set pte %p to 0x%llx\n", __func__, ptep,
pte_val(pfn_pte(pfn, hugeprot)));
set_pte_at(mm, addr, ptep, pfn_pte(pfn, hugeprot));
- ptep++;
- pfn += pgsize >> PAGE_SHIFT;
- addr += pgsize;
}
}
+void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep, pte_t pte, unsigned long sz)
+{
+ int i, ncontig;
+ size_t pgsize;
+
+ ncontig = num_contig_ptes(sz, &pgsize);
+
+ for (i = 0; i < ncontig; i++, ptep++)
+ set_pte(ptep, pte);
+}
+
pte_t *huge_pte_alloc(struct mm_struct *mm,
unsigned long addr, unsigned long sz)
{
@@ -132,40 +246,41 @@ pte_t *huge_pte_alloc(struct mm_struct *mm,
return pte;
}
-pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
+pte_t *huge_pte_offset(struct mm_struct *mm,
+ unsigned long addr, unsigned long sz)
{
pgd_t *pgd;
pud_t *pud;
- pmd_t *pmd = NULL;
- pte_t *pte = NULL;
+ pmd_t *pmd;
pgd = pgd_offset(mm, addr);
pr_debug("%s: addr:0x%lx pgd:%p\n", __func__, addr, pgd);
if (!pgd_present(*pgd))
return NULL;
+
pud = pud_offset(pgd, addr);
- if (!pud_present(*pud))
+ if (sz != PUD_SIZE && pud_none(*pud))
return NULL;
-
- if (pud_huge(*pud))
+ /* hugepage or swap? */
+ if (pud_huge(*pud) || !pud_present(*pud))
return (pte_t *)pud;
+ /* table; check the next level */
+
+ if (sz == CONT_PMD_SIZE)
+ addr &= CONT_PMD_MASK;
+
pmd = pmd_offset(pud, addr);
- if (!pmd_present(*pmd))
+ if (!(sz == PMD_SIZE || sz == CONT_PMD_SIZE) &&
+ pmd_none(*pmd))
return NULL;
-
- if (pte_cont(pmd_pte(*pmd))) {
- pmd = pmd_offset(
- pud, (addr & CONT_PMD_MASK));
- return (pte_t *)pmd;
- }
- if (pmd_huge(*pmd))
+ if (pmd_huge(*pmd) || !pmd_present(*pmd))
return (pte_t *)pmd;
- pte = pte_offset_kernel(pmd, addr);
- if (pte_present(*pte) && pte_cont(*pte)) {
- pte = pte_offset_kernel(
- pmd, (addr & CONT_PTE_MASK));
+
+ if (sz == CONT_PTE_SIZE) {
+ pte_t *pte = pte_offset_kernel(pmd, (addr & CONT_PTE_MASK));
return pte;
}
+
return NULL;
}
@@ -185,120 +300,133 @@ pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
return entry;
}
+void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep, unsigned long sz)
+{
+ int i, ncontig;
+ size_t pgsize;
+
+ ncontig = num_contig_ptes(sz, &pgsize);
+
+ for (i = 0; i < ncontig; i++, addr += pgsize, ptep++)
+ pte_clear(mm, addr, ptep);
+}
+
pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
- pte_t pte;
+ int ncontig;
+ size_t pgsize;
+ pte_t orig_pte = huge_ptep_get(ptep);
- if (pte_cont(*ptep)) {
- int ncontig, i;
- size_t pgsize;
- pte_t *cpte;
- bool is_dirty = false;
-
- cpte = huge_pte_offset(mm, addr);
- ncontig = find_num_contig(mm, addr, cpte, *cpte, &pgsize);
- /* save the 1st pte to return */
- pte = ptep_get_and_clear(mm, addr, cpte);
- for (i = 1, addr += pgsize; i < ncontig; ++i, addr += pgsize) {
- /*
- * If HW_AFDBM is enabled, then the HW could
- * turn on the dirty bit for any of the page
- * in the set, so check them all.
- */
- ++cpte;
- if (pte_dirty(ptep_get_and_clear(mm, addr, cpte)))
- is_dirty = true;
- }
- if (is_dirty)
- return pte_mkdirty(pte);
- else
- return pte;
- } else {
+ if (!pte_cont(orig_pte))
return ptep_get_and_clear(mm, addr, ptep);
- }
+
+ ncontig = find_num_contig(mm, addr, ptep, &pgsize);
+
+ return get_clear_flush(mm, addr, ptep, pgsize, ncontig);
}
int huge_ptep_set_access_flags(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep,
pte_t pte, int dirty)
{
- pte_t *cpte;
-
- if (pte_cont(pte)) {
- int ncontig, i, changed = 0;
- size_t pgsize = 0;
- unsigned long pfn = pte_pfn(pte);
- /* Select all bits except the pfn */
- pgprot_t hugeprot =
- __pgprot(pte_val(pfn_pte(pfn, __pgprot(0))) ^
- pte_val(pte));
-
- cpte = huge_pte_offset(vma->vm_mm, addr);
- pfn = pte_pfn(*cpte);
- ncontig = find_num_contig(vma->vm_mm, addr, cpte,
- *cpte, &pgsize);
- for (i = 0; i < ncontig; ++i, ++cpte, addr += pgsize) {
- changed |= ptep_set_access_flags(vma, addr, cpte,
- pfn_pte(pfn,
- hugeprot),
- dirty);
- pfn += pgsize >> PAGE_SHIFT;
- }
- return changed;
- } else {
+ int ncontig, i, changed = 0;
+ size_t pgsize = 0;
+ unsigned long pfn = pte_pfn(pte), dpfn;
+ pgprot_t hugeprot;
+ pte_t orig_pte;
+
+ if (!pte_cont(pte))
return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
- }
+
+ ncontig = find_num_contig(vma->vm_mm, addr, ptep, &pgsize);
+ dpfn = pgsize >> PAGE_SHIFT;
+
+ orig_pte = get_clear_flush(vma->vm_mm, addr, ptep, pgsize, ncontig);
+ if (!pte_same(orig_pte, pte))
+ changed = 1;
+
+ /* Make sure we don't lose the dirty state */
+ if (pte_dirty(orig_pte))
+ pte = pte_mkdirty(pte);
+
+ hugeprot = pte_pgprot(pte);
+ for (i = 0; i < ncontig; i++, ptep++, addr += pgsize, pfn += dpfn)
+ set_pte_at(vma->vm_mm, addr, ptep, pfn_pte(pfn, hugeprot));
+
+ return changed;
}
void huge_ptep_set_wrprotect(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
- if (pte_cont(*ptep)) {
- int ncontig, i;
- pte_t *cpte;
- size_t pgsize = 0;
-
- cpte = huge_pte_offset(mm, addr);
- ncontig = find_num_contig(mm, addr, cpte, *cpte, &pgsize);
- for (i = 0; i < ncontig; ++i, ++cpte, addr += pgsize)
- ptep_set_wrprotect(mm, addr, cpte);
- } else {
+ unsigned long pfn, dpfn;
+ pgprot_t hugeprot;
+ int ncontig, i;
+ size_t pgsize;
+ pte_t pte;
+
+ if (!pte_cont(*ptep)) {
ptep_set_wrprotect(mm, addr, ptep);
+ return;
}
+
+ ncontig = find_num_contig(mm, addr, ptep, &pgsize);
+ dpfn = pgsize >> PAGE_SHIFT;
+
+ pte = get_clear_flush(mm, addr, ptep, pgsize, ncontig);
+ pte = pte_wrprotect(pte);
+
+ hugeprot = pte_pgprot(pte);
+ pfn = pte_pfn(pte);
+
+ for (i = 0; i < ncontig; i++, ptep++, addr += pgsize, pfn += dpfn)
+ set_pte_at(mm, addr, ptep, pfn_pte(pfn, hugeprot));
}
void huge_ptep_clear_flush(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep)
{
- if (pte_cont(*ptep)) {
- int ncontig, i;
- pte_t *cpte;
- size_t pgsize = 0;
-
- cpte = huge_pte_offset(vma->vm_mm, addr);
- ncontig = find_num_contig(vma->vm_mm, addr, cpte,
- *cpte, &pgsize);
- for (i = 0; i < ncontig; ++i, ++cpte, addr += pgsize)
- ptep_clear_flush(vma, addr, cpte);
- } else {
+ size_t pgsize;
+ int ncontig;
+
+ if (!pte_cont(*ptep)) {
ptep_clear_flush(vma, addr, ptep);
+ return;
}
+
+ ncontig = find_num_contig(vma->vm_mm, addr, ptep, &pgsize);
+ clear_flush(vma->vm_mm, addr, ptep, pgsize, ncontig);
}
static __init int setup_hugepagesz(char *opt)
{
unsigned long ps = memparse(opt, &opt);
- if (ps == PMD_SIZE) {
- hugetlb_add_hstate(PMD_SHIFT - PAGE_SHIFT);
- } else if (ps == PUD_SIZE) {
- hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT);
- } else {
- hugetlb_bad_size();
- pr_err("hugepagesz: Unsupported page size %lu K\n", ps >> 10);
- return 0;
+ switch (ps) {
+#ifdef CONFIG_ARM64_4K_PAGES
+ case PUD_SIZE:
+#endif
+ case PMD_SIZE * CONT_PMDS:
+ case PMD_SIZE:
+ case PAGE_SIZE * CONT_PTES:
+ hugetlb_add_hstate(ilog2(ps) - PAGE_SHIFT);
+ return 1;
}
- return 1;
+
+ hugetlb_bad_size();
+ pr_err("hugepagesz: Unsupported page size %lu K\n", ps >> 10);
+ return 0;
}
__setup("hugepagesz=", setup_hugepagesz);
+
+#ifdef CONFIG_ARM64_64K_PAGES
+static __init int add_default_hugepagesz(void)
+{
+ if (size_to_hstate(CONT_PTES * PAGE_SIZE) == NULL)
+ hugetlb_add_hstate(CONT_PTE_SHIFT);
+ return 0;
+}
+arch_initcall(add_default_hugepagesz);
+#endif
diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c
index 687a358a3733..81f03959a4ab 100644
--- a/arch/arm64/mm/kasan_init.c
+++ b/arch/arm64/mm/kasan_init.c
@@ -191,14 +191,8 @@ void __init kasan_init(void)
if (start >= end)
break;
- /*
- * end + 1 here is intentional. We check several shadow bytes in
- * advance to slightly speed up fastpath. In some rare cases
- * we could cross boundary of mapped shadow, so we just map
- * some more here.
- */
vmemmap_populate((unsigned long)kasan_mem_to_shadow(start),
- (unsigned long)kasan_mem_to_shadow(end) + 1,
+ (unsigned long)kasan_mem_to_shadow(end),
pfn_to_nid(virt_to_pfn(start)));
}
diff --git a/arch/arm64/mm/mmap.c b/arch/arm64/mm/mmap.c
index 7b0d55756eb1..decccffb03ca 100644
--- a/arch/arm64/mm/mmap.c
+++ b/arch/arm64/mm/mmap.c
@@ -18,6 +18,7 @@
#include <linux/elf.h>
#include <linux/fs.h>
+#include <linux/memblock.h>
#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/export.h>
@@ -34,7 +35,7 @@
* Leave enough space between the mmap area and the stack to honour ulimit in
* the face of randomisation.
*/
-#define MIN_GAP (SZ_128M + ((STACK_RND_MASK << PAGE_SHIFT) + 1))
+#define MIN_GAP (SZ_128M)
#define MAX_GAP (STACK_TOP/6*5)
static int mmap_is_legacy(void)
@@ -64,6 +65,11 @@ unsigned long arch_mmap_rnd(void)
static unsigned long mmap_base(unsigned long rnd)
{
unsigned long gap = rlimit(RLIMIT_STACK);
+ unsigned long pad = (STACK_RND_MASK << PAGE_SHIFT) + stack_guard_gap;
+
+ /* Values close to RLIM_INFINITY can overflow. */
+ if (gap + pad > gap)
+ gap += pad;
if (gap < MIN_GAP)
gap = MIN_GAP;
@@ -103,12 +109,18 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
*/
int valid_phys_addr_range(phys_addr_t addr, size_t size)
{
- if (addr < PHYS_OFFSET)
- return 0;
- if (addr + size > __pa(high_memory - 1) + 1)
- return 0;
-
- return 1;
+ /*
+ * Check whether addr is covered by a memory region without the
+ * MEMBLOCK_NOMAP attribute, and whether that region covers the
+ * entire range. In theory, this could lead to false negatives
+ * if the range is covered by distinct but adjacent memory regions
+ * that only differ in other attributes. However, few of such
+ * attributes have been defined, and it is debatable whether it
+ * follows that /dev/mem read() calls should be able traverse
+ * such boundaries.
+ */
+ return memblock_is_region_memory(addr, size) &&
+ memblock_is_map_memory(addr);
}
/*
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 0c429ec6fde8..f1eb15e0e864 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -31,6 +31,7 @@
#include <linux/fs.h>
#include <linux/io.h>
#include <linux/mm.h>
+#include <linux/vmalloc.h>
#include <asm/barrier.h>
#include <asm/cputype.h>
@@ -495,7 +496,7 @@ void mark_rodata_ro(void)
static void __init map_kernel_segment(pgd_t *pgd, void *va_start, void *va_end,
pgprot_t prot, struct vm_struct *vma,
- int flags)
+ int flags, unsigned long vm_flags)
{
phys_addr_t pa_start = __pa_symbol(va_start);
unsigned long size = va_end - va_start;
@@ -506,10 +507,13 @@ static void __init map_kernel_segment(pgd_t *pgd, void *va_start, void *va_end,
__create_pgd_mapping(pgd, pa_start, (unsigned long)va_start, size, prot,
early_pgtable_alloc, flags);
+ if (!(vm_flags & VM_NO_GUARD))
+ size += PAGE_SIZE;
+
vma->addr = va_start;
vma->phys_addr = pa_start;
vma->size = size;
- vma->flags = VM_MAP;
+ vma->flags = VM_MAP | vm_flags;
vma->caller = __builtin_return_address(0);
vm_area_add_early(vma);
@@ -540,14 +544,15 @@ static void __init map_kernel(pgd_t *pgd)
* Only rodata will be remapped with different permissions later on,
* all other segments are allowed to use contiguous mappings.
*/
- map_kernel_segment(pgd, _text, _etext, text_prot, &vmlinux_text, 0);
+ map_kernel_segment(pgd, _text, _etext, text_prot, &vmlinux_text, 0,
+ VM_NO_GUARD);
map_kernel_segment(pgd, __start_rodata, __inittext_begin, PAGE_KERNEL,
- &vmlinux_rodata, NO_CONT_MAPPINGS);
+ &vmlinux_rodata, NO_CONT_MAPPINGS, VM_NO_GUARD);
map_kernel_segment(pgd, __inittext_begin, __inittext_end, text_prot,
- &vmlinux_inittext, 0);
+ &vmlinux_inittext, 0, VM_NO_GUARD);
map_kernel_segment(pgd, __initdata_begin, __initdata_end, PAGE_KERNEL,
- &vmlinux_initdata, 0);
- map_kernel_segment(pgd, _data, _end, PAGE_KERNEL, &vmlinux_data, 0);
+ &vmlinux_initdata, 0, VM_NO_GUARD);
+ map_kernel_segment(pgd, _data, _end, PAGE_KERNEL, &vmlinux_data, 0, 0);
if (!pgd_val(*pgd_offset_raw(pgd, FIXADDR_START))) {
/*
diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index b388a99fea7b..dad128ba98bf 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -208,8 +208,6 @@ int __init numa_add_memblk(int nid, u64 start, u64 end)
}
node_set(nid, numa_nodes_parsed);
- pr_info("Adding memblock [0x%llx - 0x%llx] on node %d\n",
- start, (end - 1), nid);
return ret;
}
@@ -223,10 +221,7 @@ static void __init setup_node_data(int nid, u64 start_pfn, u64 end_pfn)
void *nd;
int tnid;
- if (start_pfn < end_pfn)
- pr_info("Initmem setup node %d [mem %#010Lx-%#010Lx]\n", nid,
- start_pfn << PAGE_SHIFT, (end_pfn << PAGE_SHIFT) - 1);
- else
+ if (start_pfn >= end_pfn)
pr_info("Initmem setup node %d [<memory-less node>]\n", nid);
nd_pa = memblock_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);
diff --git a/arch/arm64/net/bpf_jit.h b/arch/arm64/net/bpf_jit.h
index b02a9268dfbf..783de51a6c4e 100644
--- a/arch/arm64/net/bpf_jit.h
+++ b/arch/arm64/net/bpf_jit.h
@@ -44,8 +44,12 @@
#define A64_COND_NE AARCH64_INSN_COND_NE /* != */
#define A64_COND_CS AARCH64_INSN_COND_CS /* unsigned >= */
#define A64_COND_HI AARCH64_INSN_COND_HI /* unsigned > */
+#define A64_COND_LS AARCH64_INSN_COND_LS /* unsigned <= */
+#define A64_COND_CC AARCH64_INSN_COND_CC /* unsigned < */
#define A64_COND_GE AARCH64_INSN_COND_GE /* signed >= */
#define A64_COND_GT AARCH64_INSN_COND_GT /* signed > */
+#define A64_COND_LE AARCH64_INSN_COND_LE /* signed <= */
+#define A64_COND_LT AARCH64_INSN_COND_LT /* signed < */
#define A64_B_(cond, imm19) A64_COND_BRANCH(cond, (imm19) << 2)
/* Unconditional branch (immediate) */
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index c870d6f01ac2..ba38d403abb2 100644
--- a/arch/arm64/net/bpf_jit_comp.c
+++ b/arch/arm64/net/bpf_jit_comp.c
@@ -70,7 +70,8 @@ struct jit_ctx {
int idx;
int epilogue_offset;
int *offset;
- u32 *image;
+ __le32 *image;
+ u32 stack_size;
};
static inline void emit(const u32 insn, struct jit_ctx *ctx)
@@ -130,7 +131,7 @@ static inline int bpf2a64_offset(int bpf_to, int bpf_from,
static void jit_fill_hole(void *area, unsigned int size)
{
- u32 *ptr;
+ __le32 *ptr;
/* We are guaranteed to have aligned memory. */
for (ptr = area; size >= sizeof(u32); size -= sizeof(u32))
*ptr++ = cpu_to_le32(AARCH64_BREAK_FAULT);
@@ -147,16 +148,11 @@ static inline int epilogue_offset(const struct jit_ctx *ctx)
/* Stack must be multiples of 16B */
#define STACK_ALIGN(sz) (((sz) + 15) & ~15)
-#define _STACK_SIZE \
- (MAX_BPF_STACK \
- + 4 /* extra for skb_copy_bits buffer */)
-
-#define STACK_SIZE STACK_ALIGN(_STACK_SIZE)
-
#define PROLOGUE_OFFSET 8
static int build_prologue(struct jit_ctx *ctx)
{
+ const struct bpf_prog *prog = ctx->prog;
const u8 r6 = bpf2a64[BPF_REG_6];
const u8 r7 = bpf2a64[BPF_REG_7];
const u8 r8 = bpf2a64[BPF_REG_8];
@@ -178,9 +174,9 @@ static int build_prologue(struct jit_ctx *ctx)
* | |
* | ... | BPF prog stack
* | |
- * +-----+ <= (BPF_FP - MAX_BPF_STACK)
+ * +-----+ <= (BPF_FP - prog->aux->stack_depth)
* |RSVD | JIT scratchpad
- * current A64_SP => +-----+ <= (BPF_FP - STACK_SIZE)
+ * current A64_SP => +-----+ <= (BPF_FP - ctx->stack_size)
* | |
* | ... | Function call stack
* | |
@@ -204,8 +200,12 @@ static int build_prologue(struct jit_ctx *ctx)
/* Initialize tail_call_cnt */
emit(A64_MOVZ(1, tcc, 0, 0), ctx);
+ /* 4 byte extra for skb_copy_bits buffer */
+ ctx->stack_size = prog->aux->stack_depth + 4;
+ ctx->stack_size = STACK_ALIGN(ctx->stack_size);
+
/* Set up function call stack */
- emit(A64_SUB_I(1, A64_SP, A64_SP, STACK_SIZE), ctx);
+ emit(A64_SUB_I(1, A64_SP, A64_SP, ctx->stack_size), ctx);
cur_offset = ctx->idx - idx0;
if (cur_offset != PROLOGUE_OFFSET) {
@@ -290,7 +290,7 @@ static void build_epilogue(struct jit_ctx *ctx)
const u8 fp = bpf2a64[BPF_REG_FP];
/* We're done with BPF stack */
- emit(A64_ADD_I(1, A64_SP, A64_SP, STACK_SIZE), ctx);
+ emit(A64_ADD_I(1, A64_SP, A64_SP, ctx->stack_size), ctx);
/* Restore fs (x25) and x26 */
emit(A64_POP(fp, A64_R(26), A64_SP), ctx);
@@ -527,10 +527,14 @@ emit_bswap_uxt:
/* IF (dst COND src) JUMP off */
case BPF_JMP | BPF_JEQ | BPF_X:
case BPF_JMP | BPF_JGT | BPF_X:
+ case BPF_JMP | BPF_JLT | BPF_X:
case BPF_JMP | BPF_JGE | BPF_X:
+ case BPF_JMP | BPF_JLE | BPF_X:
case BPF_JMP | BPF_JNE | BPF_X:
case BPF_JMP | BPF_JSGT | BPF_X:
+ case BPF_JMP | BPF_JSLT | BPF_X:
case BPF_JMP | BPF_JSGE | BPF_X:
+ case BPF_JMP | BPF_JSLE | BPF_X:
emit(A64_CMP(1, dst, src), ctx);
emit_cond_jmp:
jmp_offset = bpf2a64_offset(i + off, i, ctx);
@@ -542,9 +546,15 @@ emit_cond_jmp:
case BPF_JGT:
jmp_cond = A64_COND_HI;
break;
+ case BPF_JLT:
+ jmp_cond = A64_COND_CC;
+ break;
case BPF_JGE:
jmp_cond = A64_COND_CS;
break;
+ case BPF_JLE:
+ jmp_cond = A64_COND_LS;
+ break;
case BPF_JSET:
case BPF_JNE:
jmp_cond = A64_COND_NE;
@@ -552,9 +562,15 @@ emit_cond_jmp:
case BPF_JSGT:
jmp_cond = A64_COND_GT;
break;
+ case BPF_JSLT:
+ jmp_cond = A64_COND_LT;
+ break;
case BPF_JSGE:
jmp_cond = A64_COND_GE;
break;
+ case BPF_JSLE:
+ jmp_cond = A64_COND_LE;
+ break;
default:
return -EFAULT;
}
@@ -566,10 +582,14 @@ emit_cond_jmp:
/* IF (dst COND imm) JUMP off */
case BPF_JMP | BPF_JEQ | BPF_K:
case BPF_JMP | BPF_JGT | BPF_K:
+ case BPF_JMP | BPF_JLT | BPF_K:
case BPF_JMP | BPF_JGE | BPF_K:
+ case BPF_JMP | BPF_JLE | BPF_K:
case BPF_JMP | BPF_JNE | BPF_K:
case BPF_JMP | BPF_JSGT | BPF_K:
+ case BPF_JMP | BPF_JSLT | BPF_K:
case BPF_JMP | BPF_JSGE | BPF_K:
+ case BPF_JMP | BPF_JSLE | BPF_K:
emit_a64_mov_i(1, tmp, imm, ctx);
emit(A64_CMP(1, dst, tmp), ctx);
goto emit_cond_jmp;
@@ -589,7 +609,7 @@ emit_cond_jmp:
break;
}
/* tail call */
- case BPF_JMP | BPF_CALL | BPF_X:
+ case BPF_JMP | BPF_TAIL_CALL:
if (emit_bpf_tail_call(ctx))
return -EFAULT;
break;
@@ -735,7 +755,7 @@ emit_cond_jmp:
return -EINVAL;
}
emit_a64_mov_i64(r3, size, ctx);
- emit(A64_SUB_I(1, r4, fp, STACK_SIZE), ctx);
+ emit(A64_SUB_I(1, r4, fp, ctx->stack_size), ctx);
emit_a64_mov_i64(r5, (unsigned long)bpf_load_pointer, ctx);
emit(A64_BLR(r5), ctx);
emit(A64_MOV(1, r0, A64_R(0)), ctx);
@@ -874,7 +894,7 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
/* 2. Now, the actual pass. */
- ctx.image = (u32 *)image_ptr;
+ ctx.image = (__le32 *)image_ptr;
ctx.idx = 0;
build_prologue(&ctx);
@@ -903,6 +923,7 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
bpf_jit_binary_lock_ro(header);
prog->bpf_func = (void *)ctx.image;
prog->jited = 1;
+ prog->jited_len = image_size;
out_off:
kfree(ctx.offset);
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 3c1bd640042a..89bdb8264305 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -41,6 +41,7 @@ config BLACKFIN
select MODULES_USE_ELF_RELA
select HAVE_DEBUG_STACKOVERFLOW
select HAVE_NMI
+ select ARCH_NO_COHERENT_DMA_MMAP
config GENERIC_CSUM
def_bool y
diff --git a/arch/blackfin/configs/BF609-EZKIT_defconfig b/arch/blackfin/configs/BF609-EZKIT_defconfig
index ba4267f658af..3ce77f07208a 100644
--- a/arch/blackfin/configs/BF609-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF609-EZKIT_defconfig
@@ -105,7 +105,7 @@ CONFIG_SPI=y
CONFIG_SPI_ADI_V3=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_SYSFS=y
-CONFIG_GPIO_MCP23S08=y
+CONFIG_PINCTRL_MCP23S08=y
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
CONFIG_BFIN_WDT=y
diff --git a/arch/blackfin/include/asm/Kbuild b/arch/blackfin/include/asm/Kbuild
index dc4ef9ac1e83..fe736973630f 100644
--- a/arch/blackfin/include/asm/Kbuild
+++ b/arch/blackfin/include/asm/Kbuild
@@ -1,50 +1,28 @@
-
-generic-y += auxvec.h
-generic-y += bitsperlong.h
generic-y += bugs.h
generic-y += current.h
generic-y += device.h
generic-y += div64.h
generic-y += emergency-restart.h
-generic-y += errno.h
generic-y += extable.h
generic-y += fb.h
generic-y += futex.h
generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ipcbuf.h
generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += kdebug.h
generic-y += kmap_types.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
-generic-y += mman.h
-generic-y += msgbuf.h
-generic-y += param.h
generic-y += percpu.h
generic-y += pgalloc.h
generic-y += preempt.h
-generic-y += resource.h
-generic-y += sembuf.h
generic-y += serial.h
-generic-y += setup.h
-generic-y += shmbuf.h
-generic-y += shmparam.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += statfs.h
-generic-y += termbits.h
-generic-y += termios.h
generic-y += topology.h
generic-y += trace_clock.h
-generic-y += types.h
-generic-y += ucontext.h
generic-y += unaligned.h
generic-y += user.h
generic-y += word-at-a-time.h
generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/blackfin/include/asm/bfin_twi.h b/arch/blackfin/include/asm/bfin_twi.h
index aaa0834d34aa..211e9c78f6fb 100644
--- a/arch/blackfin/include/asm/bfin_twi.h
+++ b/arch/blackfin/include/asm/bfin_twi.h
@@ -1,7 +1,7 @@
/*
* bfin_twi.h - interface to Blackfin TWIs
*
- * Copyright 2005-2010 Analog Devices Inc.
+ * Copyright 2005-2014 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
@@ -10,6 +10,138 @@
#define __ASM_BFIN_TWI_H__
#include <asm/blackfin.h>
+#include <linux/types.h>
+#include <linux/i2c.h>
+
+/*
+ * ADI twi registers layout
+ */
+struct bfin_twi_regs {
+ u16 clkdiv;
+ u16 dummy1;
+ u16 control;
+ u16 dummy2;
+ u16 slave_ctl;
+ u16 dummy3;
+ u16 slave_stat;
+ u16 dummy4;
+ u16 slave_addr;
+ u16 dummy5;
+ u16 master_ctl;
+ u16 dummy6;
+ u16 master_stat;
+ u16 dummy7;
+ u16 master_addr;
+ u16 dummy8;
+ u16 int_stat;
+ u16 dummy9;
+ u16 int_mask;
+ u16 dummy10;
+ u16 fifo_ctl;
+ u16 dummy11;
+ u16 fifo_stat;
+ u16 dummy12;
+ u32 __pad[20];
+ u16 xmt_data8;
+ u16 dummy13;
+ u16 xmt_data16;
+ u16 dummy14;
+ u16 rcv_data8;
+ u16 dummy15;
+ u16 rcv_data16;
+ u16 dummy16;
+};
+
+struct bfin_twi_iface {
+ int irq;
+ spinlock_t lock;
+ char read_write;
+ u8 command;
+ u8 *transPtr;
+ int readNum;
+ int writeNum;
+ int cur_mode;
+ int manual_stop;
+ int result;
+ struct i2c_adapter adap;
+ struct completion complete;
+ struct i2c_msg *pmsg;
+ int msg_num;
+ int cur_msg;
+ u16 saved_clkdiv;
+ u16 saved_control;
+ struct bfin_twi_regs __iomem *regs_base;
+};
+
+/* ******************** TWO-WIRE INTERFACE (TWI) MASKS ********************/
+/* TWI_CLKDIV Macros (Use: *pTWI_CLKDIV = CLKLOW(x)|CLKHI(y); ) */
+#define CLKLOW(x) ((x) & 0xFF) /* Periods Clock Is Held Low */
+#define CLKHI(y) (((y)&0xFF)<<0x8) /* Periods Before New Clock Low */
+
+/* TWI_PRESCALE Masks */
+#define PRESCALE 0x007F /* SCLKs Per Internal Time Reference (10MHz) */
+#define TWI_ENA 0x0080 /* TWI Enable */
+#define SCCB 0x0200 /* SCCB Compatibility Enable */
+
+/* TWI_SLAVE_CTL Masks */
+#define SEN 0x0001 /* Slave Enable */
+#define SADD_LEN 0x0002 /* Slave Address Length */
+#define STDVAL 0x0004 /* Slave Transmit Data Valid */
+#define NAK 0x0008 /* NAK Generated At Conclusion Of Transfer */
+#define GEN 0x0010 /* General Call Address Matching Enabled */
+
+/* TWI_SLAVE_STAT Masks */
+#define SDIR 0x0001 /* Slave Transfer Direction (RX/TX*) */
+#define GCALL 0x0002 /* General Call Indicator */
+
+/* TWI_MASTER_CTL Masks */
+#define MEN 0x0001 /* Master Mode Enable */
+#define MADD_LEN 0x0002 /* Master Address Length */
+#define MDIR 0x0004 /* Master Transmit Direction (RX/TX*) */
+#define FAST 0x0008 /* Use Fast Mode Timing Specs */
+#define STOP 0x0010 /* Issue Stop Condition */
+#define RSTART 0x0020 /* Repeat Start or Stop* At End Of Transfer */
+#define DCNT 0x3FC0 /* Data Bytes To Transfer */
+#define SDAOVR 0x4000 /* Serial Data Override */
+#define SCLOVR 0x8000 /* Serial Clock Override */
+
+/* TWI_MASTER_STAT Masks */
+#define MPROG 0x0001 /* Master Transfer In Progress */
+#define LOSTARB 0x0002 /* Lost Arbitration Indicator (Xfer Aborted) */
+#define ANAK 0x0004 /* Address Not Acknowledged */
+#define DNAK 0x0008 /* Data Not Acknowledged */
+#define BUFRDERR 0x0010 /* Buffer Read Error */
+#define BUFWRERR 0x0020 /* Buffer Write Error */
+#define SDASEN 0x0040 /* Serial Data Sense */
+#define SCLSEN 0x0080 /* Serial Clock Sense */
+#define BUSBUSY 0x0100 /* Bus Busy Indicator */
+
+/* TWI_INT_SRC and TWI_INT_ENABLE Masks */
+#define SINIT 0x0001 /* Slave Transfer Initiated */
+#define SCOMP 0x0002 /* Slave Transfer Complete */
+#define SERR 0x0004 /* Slave Transfer Error */
+#define SOVF 0x0008 /* Slave Overflow */
+#define MCOMP 0x0010 /* Master Transfer Complete */
+#define MERR 0x0020 /* Master Transfer Error */
+#define XMTSERV 0x0040 /* Transmit FIFO Service */
+#define RCVSERV 0x0080 /* Receive FIFO Service */
+
+/* TWI_FIFO_CTRL Masks */
+#define XMTFLUSH 0x0001 /* Transmit Buffer Flush */
+#define RCVFLUSH 0x0002 /* Receive Buffer Flush */
+#define XMTINTLEN 0x0004 /* Transmit Buffer Interrupt Length */
+#define RCVINTLEN 0x0008 /* Receive Buffer Interrupt Length */
+
+/* TWI_FIFO_STAT Masks */
+#define XMTSTAT 0x0003 /* Transmit FIFO Status */
+#define XMT_EMPTY 0x0000 /* Transmit FIFO Empty */
+#define XMT_HALF 0x0001 /* Transmit FIFO Has 1 Byte To Write */
+#define XMT_FULL 0x0003 /* Transmit FIFO Full (2 Bytes To Write) */
+
+#define RCVSTAT 0x000C /* Receive FIFO Status */
+#define RCV_EMPTY 0x0000 /* Receive FIFO Empty */
+#define RCV_HALF 0x0004 /* Receive FIFO Has 1 Byte To Read */
+#define RCV_FULL 0x000C /* Receive FIFO Full (2 Bytes To Read) */
#define DEFINE_TWI_REG(reg_name, reg) \
static inline u16 read_##reg_name(struct bfin_twi_iface *iface) \
diff --git a/arch/blackfin/include/asm/bug.h b/arch/blackfin/include/asm/bug.h
index 8d9b1eba89c4..76b2e82ee730 100644
--- a/arch/blackfin/include/asm/bug.h
+++ b/arch/blackfin/include/asm/bug.h
@@ -21,7 +21,7 @@
#define _BUG_OR_WARN(flags) \
asm volatile( \
"1: .hword %0\n" \
- " .section __bug_table,\"a\",@progbits\n" \
+ " .section __bug_table,\"aw\",@progbits\n" \
"2: .long 1b\n" \
" .long %1\n" \
" .short %2\n" \
@@ -38,7 +38,7 @@
#define _BUG_OR_WARN(flags) \
asm volatile( \
"1: .hword %0\n" \
- " .section __bug_table,\"a\",@progbits\n" \
+ " .section __bug_table,\"aw\",@progbits\n" \
"2: .long 1b\n" \
" .short %1\n" \
" .org 2b + %2\n" \
diff --git a/arch/blackfin/include/asm/flat.h b/arch/blackfin/include/asm/flat.h
index c1314c56dd18..f1d6ba7afbf2 100644
--- a/arch/blackfin/include/asm/flat.h
+++ b/arch/blackfin/include/asm/flat.h
@@ -14,23 +14,28 @@
#define flat_argvp_envp_on_stack() 0
#define flat_old_ram_flag(flags) (flags)
-extern unsigned long bfin_get_addr_from_rp (unsigned long *ptr,
- unsigned long relval,
- unsigned long flags,
- unsigned long *persistent);
+extern unsigned long bfin_get_addr_from_rp (u32 *ptr, u32 relval,
+ u32 flags, u32 *persistent);
-extern void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr,
- unsigned long relval);
+extern void bfin_put_addr_at_rp(u32 *ptr, u32 addr, u32 relval);
/* The amount by which a relocation can exceed the program image limits
without being regarded as an error. */
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
- bfin_get_addr_from_rp(rp, relval, flags, persistent)
-#define flat_put_addr_at_rp(rp, val, relval) \
- bfin_put_addr_at_rp(rp, val, relval)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+ *addr = bfin_get_addr_from_rp(rp, relval, flags, persistent);
+ return 0;
+}
+
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 val, u32 relval)
+{
+ bfin_put_addr_at_rp(rp, val, relval);
+ return 0;
+}
/* Convert a relocation entry into an address. */
static inline unsigned long
@@ -39,8 +44,7 @@ flat_get_relocate_addr (unsigned long relval)
return relval & 0x03ffffff; /* Mask out top 6 bits */
}
-static inline int flat_set_persistent(unsigned long relval,
- unsigned long *persistent)
+static inline int flat_set_persistent(u32 relval, u32 *persistent)
{
int type = (relval >> 26) & 7;
if (type == 3) {
diff --git a/arch/blackfin/include/asm/nmi.h b/arch/blackfin/include/asm/nmi.h
index b9caac4fcfd8..107d23705f46 100644
--- a/arch/blackfin/include/asm/nmi.h
+++ b/arch/blackfin/include/asm/nmi.h
@@ -9,4 +9,6 @@
#include <linux/nmi.h>
+extern void arch_touch_nmi_watchdog(void);
+
#endif
diff --git a/arch/blackfin/include/asm/spinlock.h b/arch/blackfin/include/asm/spinlock.h
index c58f4a83ed6f..f6431439d15d 100644
--- a/arch/blackfin/include/asm/spinlock.h
+++ b/arch/blackfin/include/asm/spinlock.h
@@ -48,11 +48,6 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
__raw_spin_unlock_asm(&lock->lock);
}
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- smp_cond_load_acquire(&lock->lock, !VAL);
-}
-
static inline int arch_read_can_lock(arch_rwlock_t *rw)
{
return __raw_uncached_fetch_asm(&rw->lock) > 0;
diff --git a/arch/blackfin/include/asm/uaccess.h b/arch/blackfin/include/asm/uaccess.h
index f54a34f31cea..45da4bcb050e 100644
--- a/arch/blackfin/include/asm/uaccess.h
+++ b/arch/blackfin/include/asm/uaccess.h
@@ -194,13 +194,6 @@ static inline long __must_check strnlen_user(const char __user *src, long n)
return strnlen((const char __force *)src, n) + 1;
}
-static inline long __must_check strlen_user(const char __user *src)
-{
- if (!access_ok(VERIFY_READ, src, 1))
- return 0;
- return strlen((const char __force *)src) + 1;
-}
-
/*
* Zero Userspace
*/
diff --git a/arch/blackfin/include/uapi/asm/Kbuild b/arch/blackfin/include/uapi/asm/Kbuild
index b15bf6bc0e94..aa624b4ab655 100644
--- a/arch/blackfin/include/uapi/asm/Kbuild
+++ b/arch/blackfin/include/uapi/asm/Kbuild
@@ -1,2 +1,24 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += ioctl.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += setup.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
+generic-y += ucontext.h
diff --git a/arch/blackfin/include/uapi/asm/siginfo.h b/arch/blackfin/include/uapi/asm/siginfo.h
index c72f4e6e386f..79dfe3979123 100644
--- a/arch/blackfin/include/uapi/asm/siginfo.h
+++ b/arch/blackfin/include/uapi/asm/siginfo.h
@@ -14,28 +14,36 @@
#define si_uid16 _sifields._kill._uid
-#define ILL_ILLPARAOP (__SI_FAULT|2) /* illegal opcode combine ********** */
-#define ILL_ILLEXCPT (__SI_FAULT|4) /* unrecoverable exception ********** */
-#define ILL_CPLB_VI (__SI_FAULT|9) /* D/I CPLB protect violation ******** */
-#define ILL_CPLB_MISS (__SI_FAULT|10) /* D/I CPLB miss ******** */
-#define ILL_CPLB_MULHIT (__SI_FAULT|11) /* D/I CPLB multiple hit ******** */
+#define ILL_ILLPARAOP 2 /* illegal opcode combine ********** */
+#define ILL_ILLEXCPT 4 /* unrecoverable exception ********** */
+#define ILL_CPLB_VI 9 /* D/I CPLB protect violation ******** */
+#define ILL_CPLB_MISS 10 /* D/I CPLB miss ******** */
+#define ILL_CPLB_MULHIT 11 /* D/I CPLB multiple hit ******** */
+#undef NSIGILL
+#define NSIGILL 11
/*
* SIGBUS si_codes
*/
-#define BUS_OPFETCH (__SI_FAULT|4) /* error from instruction fetch ******** */
+#define BUS_OPFETCH 4 /* error from instruction fetch ******** */
+#undef NSIGBUS
+#define NSIGBUS 4
/*
* SIGTRAP si_codes
*/
-#define TRAP_STEP (__SI_FAULT|1) /* single-step breakpoint************* */
-#define TRAP_TRACEFLOW (__SI_FAULT|2) /* trace buffer overflow ************* */
-#define TRAP_WATCHPT (__SI_FAULT|3) /* watchpoint match ************* */
-#define TRAP_ILLTRAP (__SI_FAULT|4) /* illegal trap ************* */
+#define TRAP_STEP 1 /* single-step breakpoint************* */
+#define TRAP_TRACEFLOW 2 /* trace buffer overflow ************* */
+#define TRAP_WATCHPT 3 /* watchpoint match ************* */
+#define TRAP_ILLTRAP 4 /* illegal trap ************* */
+#undef NSIGTRAP
+#define NSIGTRAP 4
/*
* SIGSEGV si_codes
*/
-#define SEGV_STACKFLOW (__SI_FAULT|3) /* stack overflow */
+#define SEGV_STACKFLOW 3 /* stack overflow */
+#undef NSIGSEGV
+#define NSIGSEGV 3
#endif /* _UAPI_BFIN_SIGINFO_H */
diff --git a/arch/blackfin/kernel/debug-mmrs.c b/arch/blackfin/kernel/debug-mmrs.c
index e272bca93c64..f31ace221392 100644
--- a/arch/blackfin/kernel/debug-mmrs.c
+++ b/arch/blackfin/kernel/debug-mmrs.c
@@ -10,7 +10,6 @@
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/i2c/bfin_twi.h>
#include <linux/gpio.h>
#include <asm/blackfin.h>
diff --git a/arch/blackfin/kernel/flat.c b/arch/blackfin/kernel/flat.c
index b5b658449616..8ebc54daaa8e 100644
--- a/arch/blackfin/kernel/flat.c
+++ b/arch/blackfin/kernel/flat.c
@@ -13,14 +13,14 @@
#define FLAT_BFIN_RELOC_TYPE_16H_BIT 1
#define FLAT_BFIN_RELOC_TYPE_32_BIT 2
-unsigned long bfin_get_addr_from_rp(unsigned long *ptr,
- unsigned long relval,
- unsigned long flags,
- unsigned long *persistent)
+unsigned long bfin_get_addr_from_rp(u32 *ptr,
+ u32 relval,
+ u32 flags,
+ u32 *persistent)
{
unsigned short *usptr = (unsigned short *)ptr;
int type = (relval >> 26) & 7;
- unsigned long val;
+ u32 val;
switch (type) {
case FLAT_BFIN_RELOC_TYPE_16_BIT:
@@ -32,7 +32,7 @@ unsigned long bfin_get_addr_from_rp(unsigned long *ptr,
break;
case FLAT_BFIN_RELOC_TYPE_32_BIT:
- pr_debug("*ptr = %lx", get_unaligned(ptr));
+ pr_debug("*ptr = %x", get_unaligned(ptr));
val = get_unaligned(ptr);
break;
@@ -59,8 +59,7 @@ EXPORT_SYMBOL(bfin_get_addr_from_rp);
* Insert the address ADDR into the symbol reference at RP;
* RELVAL is the raw relocation-table entry from which RP is derived
*/
-void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr,
- unsigned long relval)
+void bfin_put_addr_at_rp(u32 *ptr, u32 addr, u32 relval)
{
unsigned short *usptr = (unsigned short *)ptr;
int type = (relval >> 26) & 7;
@@ -78,7 +77,7 @@ void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr,
case FLAT_BFIN_RELOC_TYPE_32_BIT:
put_unaligned(addr, ptr);
- pr_debug("new ptr =%lx", get_unaligned(ptr));
+ pr_debug("new ptr =%x", get_unaligned(ptr));
break;
}
}
diff --git a/arch/blackfin/kernel/module.c b/arch/blackfin/kernel/module.c
index 0188c933b155..15af5768c403 100644
--- a/arch/blackfin/kernel/module.c
+++ b/arch/blackfin/kernel/module.c
@@ -4,8 +4,6 @@
* Licensed under the GPL-2 or later
*/
-#define pr_fmt(fmt) "module %s: " fmt, mod->name
-
#include <linux/moduleloader.h>
#include <linux/elf.h>
#include <linux/vmalloc.h>
@@ -16,6 +14,11 @@
#include <asm/cacheflush.h>
#include <linux/uaccess.h>
+#define mod_err(mod, fmt, ...) \
+ pr_err("module %s: " fmt, (mod)->name, ##__VA_ARGS__)
+#define mod_debug(mod, fmt, ...) \
+ pr_debug("module %s: " fmt, (mod)->name, ##__VA_ARGS__)
+
/* Transfer the section to the L1 memory */
int
module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
@@ -44,7 +47,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l1_inst_sram_alloc(s->sh_size);
mod->arch.text_l1 = dest;
if (dest == NULL) {
- pr_err("L1 inst memory allocation failed\n");
+ mod_err(mod, "L1 inst memory allocation failed\n");
return -1;
}
dma_memcpy(dest, (void *)s->sh_addr, s->sh_size);
@@ -56,7 +59,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l1_data_sram_alloc(s->sh_size);
mod->arch.data_a_l1 = dest;
if (dest == NULL) {
- pr_err("L1 data memory allocation failed\n");
+ mod_err(mod, "L1 data memory allocation failed\n");
return -1;
}
memcpy(dest, (void *)s->sh_addr, s->sh_size);
@@ -68,7 +71,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l1_data_sram_zalloc(s->sh_size);
mod->arch.bss_a_l1 = dest;
if (dest == NULL) {
- pr_err("L1 data memory allocation failed\n");
+ mod_err(mod, "L1 data memory allocation failed\n");
return -1;
}
@@ -77,7 +80,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l1_data_B_sram_alloc(s->sh_size);
mod->arch.data_b_l1 = dest;
if (dest == NULL) {
- pr_err("L1 data memory allocation failed\n");
+ mod_err(mod, "L1 data memory allocation failed\n");
return -1;
}
memcpy(dest, (void *)s->sh_addr, s->sh_size);
@@ -87,7 +90,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l1_data_B_sram_alloc(s->sh_size);
mod->arch.bss_b_l1 = dest;
if (dest == NULL) {
- pr_err("L1 data memory allocation failed\n");
+ mod_err(mod, "L1 data memory allocation failed\n");
return -1;
}
memset(dest, 0, s->sh_size);
@@ -99,7 +102,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l2_sram_alloc(s->sh_size);
mod->arch.text_l2 = dest;
if (dest == NULL) {
- pr_err("L2 SRAM allocation failed\n");
+ mod_err(mod, "L2 SRAM allocation failed\n");
return -1;
}
memcpy(dest, (void *)s->sh_addr, s->sh_size);
@@ -111,7 +114,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l2_sram_alloc(s->sh_size);
mod->arch.data_l2 = dest;
if (dest == NULL) {
- pr_err("L2 SRAM allocation failed\n");
+ mod_err(mod, "L2 SRAM allocation failed\n");
return -1;
}
memcpy(dest, (void *)s->sh_addr, s->sh_size);
@@ -123,7 +126,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l2_sram_zalloc(s->sh_size);
mod->arch.bss_l2 = dest;
if (dest == NULL) {
- pr_err("L2 SRAM allocation failed\n");
+ mod_err(mod, "L2 SRAM allocation failed\n");
return -1;
}
@@ -157,8 +160,8 @@ apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
Elf32_Sym *sym;
unsigned long location, value, size;
- pr_debug("applying relocate section %u to %u\n",
- relsec, sechdrs[relsec].sh_info);
+ mod_debug(mod, "applying relocate section %u to %u\n",
+ relsec, sechdrs[relsec].sh_info);
for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
/* This is where to make the change */
@@ -174,14 +177,14 @@ apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
#ifdef CONFIG_SMP
if (location >= COREB_L1_DATA_A_START) {
- pr_err("cannot relocate in L1: %u (SMP kernel)\n",
+ mod_err(mod, "cannot relocate in L1: %u (SMP kernel)\n",
ELF32_R_TYPE(rel[i].r_info));
return -ENOEXEC;
}
#endif
- pr_debug("location is %lx, value is %lx type is %d\n",
- location, value, ELF32_R_TYPE(rel[i].r_info));
+ mod_debug(mod, "location is %lx, value is %lx type is %d\n",
+ location, value, ELF32_R_TYPE(rel[i].r_info));
switch (ELF32_R_TYPE(rel[i].r_info)) {
@@ -200,12 +203,12 @@ apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
case R_BFIN_PCREL12_JUMP:
case R_BFIN_PCREL12_JUMP_S:
case R_BFIN_PCREL10:
- pr_err("unsupported relocation: %u (no -mlong-calls?)\n",
+ mod_err(mod, "unsupported relocation: %u (no -mlong-calls?)\n",
ELF32_R_TYPE(rel[i].r_info));
return -ENOEXEC;
default:
- pr_err("unknown relocation: %u\n",
+ mod_err(mod, "unknown relocation: %u\n",
ELF32_R_TYPE(rel[i].r_info));
return -ENOEXEC;
}
@@ -222,7 +225,7 @@ apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
isram_memcpy((void *)location, &value, size);
break;
default:
- pr_err("invalid relocation for %#lx\n", location);
+ mod_err(mod, "invalid relocation for %#lx\n", location);
return -ENOEXEC;
}
}
diff --git a/arch/blackfin/kernel/nmi.c b/arch/blackfin/kernel/nmi.c
index 633c37083e87..1e714329fe8a 100644
--- a/arch/blackfin/kernel/nmi.c
+++ b/arch/blackfin/kernel/nmi.c
@@ -190,7 +190,7 @@ static int __init init_nmi_wdt(void)
}
device_initcall(init_nmi_wdt);
-void touch_nmi_watchdog(void)
+void arch_touch_nmi_watchdog(void)
{
atomic_set(&nmi_touched[smp_processor_id()], 1);
}
diff --git a/arch/blackfin/mach-bf527/boards/tll6527m.c b/arch/blackfin/mach-bf527/boards/tll6527m.c
index c1acce4c2e45..ce5488e8226b 100644
--- a/arch/blackfin/mach-bf527/boards/tll6527m.c
+++ b/arch/blackfin/mach-bf527/boards/tll6527m.c
@@ -348,14 +348,14 @@ static struct platform_device bfin_i2s = {
};
#endif
-#if IS_ENABLED(CONFIG_GPIO_MCP23S08)
+#if IS_ENABLED(CONFIG_PINCTRL_MCP23S08)
#include <linux/spi/mcp23s08.h>
static const struct mcp23s08_platform_data bfin_mcp23s08_sys_gpio_info = {
- .chip[0].is_present = true,
+ .spi_present_mask = BIT(0),
.base = 0x30,
};
static const struct mcp23s08_platform_data bfin_mcp23s08_usr_gpio_info = {
- .chip[2].is_present = true,
+ .spi_present_mask = BIT(2),
.base = 0x38,
};
#endif
@@ -423,7 +423,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
.mode = SPI_CPHA | SPI_CPOL,
},
#endif
-#if IS_ENABLED(CONFIG_GPIO_MCP23S08)
+#if IS_ENABLED(CONFIG_PINCTRL_MCP23S08)
{
.modalias = "mcp23s08",
.platform_data = &bfin_mcp23s08_sys_gpio_info,
diff --git a/arch/blackfin/mach-bf537/boards/dnp5370.c b/arch/blackfin/mach-bf537/boards/dnp5370.c
index e79b3b810c39..c4a8ffb15417 100644
--- a/arch/blackfin/mach-bf537/boards/dnp5370.c
+++ b/arch/blackfin/mach-bf537/boards/dnp5370.c
@@ -17,7 +17,7 @@
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/plat-ram.h>
#include <linux/mtd/physmap.h>
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index eaec7b4832a2..400e6693643e 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -12,7 +12,7 @@
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/plat-ram.h>
#include <linux/mtd/physmap.h>
@@ -22,7 +22,7 @@
#include <linux/usb/isp1362.h>
#endif
#include <linux/i2c.h>
-#include <linux/i2c/adp5588.h>
+#include <linux/platform_data/adp5588.h>
#include <linux/etherdevice.h>
#include <linux/ata_platform.h>
#include <linux/irq.h>
@@ -1995,7 +1995,7 @@ static struct adp5588_gpio_platform_data adp5588_gpio_data = {
#endif
#if IS_ENABLED(CONFIG_BACKLIGHT_ADP8870)
-#include <linux/i2c/adp8870.h>
+#include <linux/platform_data/adp8870.h>
static struct led_info adp8870_leds[] = {
{
.name = "adp8870-led7",
@@ -2047,7 +2047,7 @@ static struct adp8870_backlight_platform_data adp8870_pdata = {
#endif
#if IS_ENABLED(CONFIG_BACKLIGHT_ADP8860)
-#include <linux/i2c/adp8860.h>
+#include <linux/platform_data/adp8860.h>
static struct led_info adp8860_leds[] = {
{
.name = "adp8860-led7",
diff --git a/arch/blackfin/mach-bf561/boards/acvilon.c b/arch/blackfin/mach-bf561/boards/acvilon.c
index 37f8f25a1347..696cc9d7820a 100644
--- a/arch/blackfin/mach-bf561/boards/acvilon.c
+++ b/arch/blackfin/mach-bf561/boards/acvilon.c
@@ -38,7 +38,7 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/plat-ram.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
diff --git a/arch/blackfin/mach-bf609/boards/ezkit.c b/arch/blackfin/mach-bf609/boards/ezkit.c
index 9231e5a72b93..51157a255824 100644
--- a/arch/blackfin/mach-bf609/boards/ezkit.c
+++ b/arch/blackfin/mach-bf609/boards/ezkit.c
@@ -1887,7 +1887,7 @@ static struct platform_device i2c_bfin_twi1_device = {
};
#endif
-#if IS_ENABLED(CONFIG_GPIO_MCP23S08)
+#if IS_ENABLED(CONFIG_PINCTRL_MCP23S08)
#include <linux/spi/mcp23s08.h>
static const struct mcp23s08_platform_data bfin_mcp23s08_soft_switch0 = {
.base = 120,
@@ -1929,7 +1929,7 @@ static struct i2c_board_info __initdata bfin_i2c_board_info0[] = {
I2C_BOARD_INFO("ssm2602", 0x1b),
},
#endif
-#if IS_ENABLED(CONFIG_GPIO_MCP23S08)
+#if IS_ENABLED(CONFIG_PINCTRL_MCP23S08)
{
I2C_BOARD_INFO("mcp23017", 0x21),
.platform_data = (void *)&bfin_mcp23s08_soft_switch0
diff --git a/arch/c6x/configs/dsk6455_defconfig b/arch/c6x/configs/dsk6455_defconfig
index 4663487c67a1..d764ea4cce7f 100644
--- a/arch/c6x/configs/dsk6455_defconfig
+++ b/arch/c6x/configs/dsk6455_defconfig
@@ -1,5 +1,4 @@
CONFIG_SOC_TMS320C6455=y
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_SPARSE_IRQ=y
@@ -25,7 +24,6 @@ CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=2
CONFIG_BLK_DEV_RAM_SIZE=17000
-CONFIG_MISC_DEVICES=y
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
diff --git a/arch/c6x/configs/evmc6457_defconfig b/arch/c6x/configs/evmc6457_defconfig
index bba40e195ec4..05d0b4a25ab1 100644
--- a/arch/c6x/configs/evmc6457_defconfig
+++ b/arch/c6x/configs/evmc6457_defconfig
@@ -1,5 +1,4 @@
CONFIG_SOC_TMS320C6457=y
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_SPARSE_IRQ=y
@@ -26,7 +25,6 @@ CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=2
CONFIG_BLK_DEV_RAM_SIZE=17000
-CONFIG_MISC_DEVICES=y
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
diff --git a/arch/c6x/configs/evmc6472_defconfig b/arch/c6x/configs/evmc6472_defconfig
index 8c46155f6d31..8d81fcf86b0e 100644
--- a/arch/c6x/configs/evmc6472_defconfig
+++ b/arch/c6x/configs/evmc6472_defconfig
@@ -1,5 +1,4 @@
CONFIG_SOC_TMS320C6472=y
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_SPARSE_IRQ=y
@@ -27,7 +26,6 @@ CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=2
CONFIG_BLK_DEV_RAM_SIZE=17000
-CONFIG_MISC_DEVICES=y
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
diff --git a/arch/c6x/configs/evmc6474_defconfig b/arch/c6x/configs/evmc6474_defconfig
index 15533f632313..8156a98f3958 100644
--- a/arch/c6x/configs/evmc6474_defconfig
+++ b/arch/c6x/configs/evmc6474_defconfig
@@ -1,5 +1,4 @@
CONFIG_SOC_TMS320C6474=y
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_SPARSE_IRQ=y
@@ -27,7 +26,6 @@ CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=2
CONFIG_BLK_DEV_RAM_SIZE=17000
-CONFIG_MISC_DEVICES=y
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
diff --git a/arch/c6x/configs/evmc6678_defconfig b/arch/c6x/configs/evmc6678_defconfig
index 5f126d4905b1..c4f433c25b69 100644
--- a/arch/c6x/configs/evmc6678_defconfig
+++ b/arch/c6x/configs/evmc6678_defconfig
@@ -1,5 +1,4 @@
CONFIG_SOC_TMS320C6678=y
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_SPARSE_IRQ=y
@@ -27,7 +26,6 @@ CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=2
CONFIG_BLK_DEV_RAM_SIZE=17000
-CONFIG_MISC_DEVICES=y
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
diff --git a/arch/c6x/include/asm/Kbuild b/arch/c6x/include/asm/Kbuild
index f0eaf0475e7e..d717329c8cf9 100644
--- a/arch/c6x/include/asm/Kbuild
+++ b/arch/c6x/include/asm/Kbuild
@@ -1,8 +1,5 @@
-
generic-y += atomic.h
-generic-y += auxvec.h
generic-y += barrier.h
-generic-y += bitsperlong.h
generic-y += bugs.h
generic-y += clkdev.h
generic-y += current.h
@@ -10,56 +7,32 @@ generic-y += device.h
generic-y += div64.h
generic-y += dma.h
generic-y += emergency-restart.h
-generic-y += errno.h
generic-y += exec.h
generic-y += extable.h
generic-y += fb.h
-generic-y += fcntl.h
generic-y += futex.h
generic-y += hw_irq.h
generic-y += io.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += kdebug.h
generic-y += kmap_types.h
+generic-y += kprobes.h
generic-y += local.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
-generic-y += mman.h
generic-y += mmu.h
generic-y += mmu_context.h
-generic-y += msgbuf.h
-generic-y += param.h
generic-y += pci.h
generic-y += percpu.h
generic-y += pgalloc.h
-generic-y += poll.h
-generic-y += posix_types.h
generic-y += preempt.h
-generic-y += resource.h
generic-y += segment.h
-generic-y += sembuf.h
generic-y += serial.h
-generic-y += shmbuf.h
-generic-y += shmparam.h
-generic-y += siginfo.h
-generic-y += signal.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += stat.h
-generic-y += statfs.h
-generic-y += termbits.h
-generic-y += termios.h
generic-y += tlbflush.h
generic-y += topology.h
generic-y += trace_clock.h
-generic-y += types.h
-generic-y += ucontext.h
generic-y += user.h
generic-y += vga.h
generic-y += word-at-a-time.h
generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h
index aca9f755e4f8..05daf1038111 100644
--- a/arch/c6x/include/asm/dma-mapping.h
+++ b/arch/c6x/include/asm/dma-mapping.h
@@ -12,11 +12,6 @@
#ifndef _ASM_C6X_DMA_MAPPING_H
#define _ASM_C6X_DMA_MAPPING_H
-/*
- * DMA errors are defined by all-bits-set in the DMA address.
- */
-#define DMA_ERROR_CODE ~0
-
extern const struct dma_map_ops c6x_dma_ops;
static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
diff --git a/arch/c6x/include/asm/flat.h b/arch/c6x/include/asm/flat.h
index a1858bd5f6c8..6f1feb00bd52 100644
--- a/arch/c6x/include/asm/flat.h
+++ b/arch/c6x/include/asm/flat.h
@@ -1,11 +1,22 @@
#ifndef __ASM_C6X_FLAT_H
#define __ASM_C6X_FLAT_H
+#include <asm/unaligned.h>
+
#define flat_argvp_envp_on_stack() 0
#define flat_old_ram_flag(flags) (flags)
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, p) get_unaligned(rp)
-#define flat_put_addr_at_rp(rp, val, relval) put_unaligned(val, rp)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+ *addr = get_unaligned((__force u32 *)rp);
+ return 0;
+}
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+ put_unaligned(addr, (__force u32 *)rp);
+ return 0;
+}
#define flat_get_relocate_addr(rel) (rel)
#define flat_set_persistent(relval, p) 0
diff --git a/arch/c6x/include/asm/processor.h b/arch/c6x/include/asm/processor.h
index 7c87b5be53b5..8f7cce829f8e 100644
--- a/arch/c6x/include/asm/processor.h
+++ b/arch/c6x/include/asm/processor.h
@@ -92,9 +92,6 @@ static inline void release_thread(struct task_struct *dead_task)
{
}
-#define copy_segments(tsk, mm) do { } while (0)
-#define release_segments(mm) do { } while (0)
-
/*
* saved kernel SP and DP of a blocked thread.
*/
diff --git a/arch/c6x/include/uapi/asm/Kbuild b/arch/c6x/include/uapi/asm/Kbuild
index 13a97aa2285f..67ee896a76a7 100644
--- a/arch/c6x/include/uapi/asm/Kbuild
+++ b/arch/c6x/include/uapi/asm/Kbuild
@@ -1,4 +1,30 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
+generic-y += siginfo.h
+generic-y += signal.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
+generic-y += ucontext.h
diff --git a/arch/c6x/platforms/megamod-pic.c b/arch/c6x/platforms/megamod-pic.c
index 43afc03e4125..9519fa5f97d0 100644
--- a/arch/c6x/platforms/megamod-pic.c
+++ b/arch/c6x/platforms/megamod-pic.c
@@ -208,14 +208,14 @@ static struct megamod_pic * __init init_megamod_pic(struct device_node *np)
pic = kzalloc(sizeof(struct megamod_pic), GFP_KERNEL);
if (!pic) {
- pr_err("%s: Could not alloc PIC structure.\n", np->full_name);
+ pr_err("%pOF: Could not alloc PIC structure.\n", np);
return NULL;
}
pic->irqhost = irq_domain_add_linear(np, NR_COMBINERS * 32,
&megamod_domain_ops, pic);
if (!pic->irqhost) {
- pr_err("%s: Could not alloc host.\n", np->full_name);
+ pr_err("%pOF: Could not alloc host.\n", np);
goto error_free;
}
@@ -225,7 +225,7 @@ static struct megamod_pic * __init init_megamod_pic(struct device_node *np)
pic->regs = of_iomap(np, 0);
if (!pic->regs) {
- pr_err("%s: Could not map registers.\n", np->full_name);
+ pr_err("%pOF: Could not map registers.\n", np);
goto error_free;
}
@@ -253,8 +253,8 @@ static struct megamod_pic * __init init_megamod_pic(struct device_node *np)
irq_data = irq_get_irq_data(irq);
if (!irq_data) {
- pr_err("%s: combiner-%d no irq_data for virq %d!\n",
- np->full_name, i, irq);
+ pr_err("%pOF: combiner-%d no irq_data for virq %d!\n",
+ np, i, irq);
continue;
}
@@ -265,16 +265,16 @@ static struct megamod_pic * __init init_megamod_pic(struct device_node *np)
* of the core priority interrupts (4 - 15).
*/
if (hwirq < 4 || hwirq >= NR_PRIORITY_IRQS) {
- pr_err("%s: combiner-%d core irq %ld out of range!\n",
- np->full_name, i, hwirq);
+ pr_err("%pOF: combiner-%d core irq %ld out of range!\n",
+ np, i, hwirq);
continue;
}
/* record the mapping */
mapping[hwirq - 4] = i;
- pr_debug("%s: combiner-%d cascading to hwirq %ld\n",
- np->full_name, i, hwirq);
+ pr_debug("%pOF: combiner-%d cascading to hwirq %ld\n",
+ np, i, hwirq);
cascade_data[i].pic = pic;
cascade_data[i].index = i;
@@ -290,8 +290,8 @@ static struct megamod_pic * __init init_megamod_pic(struct device_node *np)
/* Finally, set up the MUX registers */
for (i = 0; i < NR_MUX_OUTPUTS; i++) {
if (mapping[i] != IRQ_UNMAPPED) {
- pr_debug("%s: setting mux %d to priority %d\n",
- np->full_name, mapping[i], i + 4);
+ pr_debug("%pOF: setting mux %d to priority %d\n",
+ np, mapping[i], i + 4);
set_megamod_mux(pic, mapping[i], i);
}
}
diff --git a/arch/c6x/platforms/plldata.c b/arch/c6x/platforms/plldata.c
index 755359eb6286..e8b6cc6a7b5a 100644
--- a/arch/c6x/platforms/plldata.c
+++ b/arch/c6x/platforms/plldata.c
@@ -436,8 +436,8 @@ void __init c64x_setup_clocks(void)
err = of_property_read_u32(node, "clock-frequency", &val);
if (err || val == 0) {
- pr_err("%s: no clock-frequency found! Using %dMHz\n",
- node->full_name, (int)val / 1000000);
+ pr_err("%pOF: no clock-frequency found! Using %dMHz\n",
+ node, (int)val / 1000000);
val = 25000000;
}
clkin1.rate = val;
diff --git a/arch/c6x/platforms/timer64.c b/arch/c6x/platforms/timer64.c
index 0bd0452ded80..241a9a607193 100644
--- a/arch/c6x/platforms/timer64.c
+++ b/arch/c6x/platforms/timer64.c
@@ -204,14 +204,14 @@ void __init timer64_init(void)
timer = of_iomap(np, 0);
if (!timer) {
- pr_debug("%s: Cannot map timer registers.\n", np->full_name);
+ pr_debug("%pOF: Cannot map timer registers.\n", np);
goto out;
}
- pr_debug("%s: Timer registers=%p.\n", np->full_name, timer);
+ pr_debug("%pOF: Timer registers=%p.\n", np, timer);
cd->irq = irq_of_parse_and_map(np, 0);
if (cd->irq == NO_IRQ) {
- pr_debug("%s: Cannot find interrupt.\n", np->full_name);
+ pr_debug("%pOF: Cannot find interrupt.\n", np);
iounmap(timer);
goto out;
}
@@ -229,7 +229,7 @@ void __init timer64_init(void)
dscr_set_devstate(timer64_devstate_id, DSCR_DEVSTATE_ENABLED);
}
- pr_debug("%s: Timer irq=%d.\n", np->full_name, cd->irq);
+ pr_debug("%pOF: Timer irq=%d.\n", np, cd->irq);
clockevents_calc_mult_shift(cd, c6x_core_freq / TIMER_DIVISOR, 5);
diff --git a/arch/cris/arch-v10/drivers/gpio.c b/arch/cris/arch-v10/drivers/gpio.c
index 64285e0d3481..dfd3b3ba5e4e 100644
--- a/arch/cris/arch-v10/drivers/gpio.c
+++ b/arch/cris/arch-v10/drivers/gpio.c
@@ -399,7 +399,7 @@ out:
/* Main device API. ioctl's to read/set/clear bits, as well as to
* set alarms to wait for using a subsequent select().
*/
-unsigned long inline setget_input(struct gpio_private *priv, unsigned long arg)
+inline unsigned long setget_input(struct gpio_private *priv, unsigned long arg)
{
/* Set direction 0=unchanged 1=input,
* return mask with 1=input */
@@ -450,7 +450,7 @@ unsigned long inline setget_input(struct gpio_private *priv, unsigned long arg)
return dir_g_in_bits;
} /* setget_input */
-unsigned long inline setget_output(struct gpio_private *priv, unsigned long arg)
+inline unsigned long setget_output(struct gpio_private *priv, unsigned long arg)
{
if (USE_PORTS(priv)) {
*priv->dir = *priv->dir_shadow |=
diff --git a/arch/cris/arch-v32/drivers/mach-a3/nandflash.c b/arch/cris/arch-v32/drivers/mach-a3/nandflash.c
index 3f646c787e58..925a98eb6d68 100644
--- a/arch/cris/arch-v32/drivers/mach-a3/nandflash.c
+++ b/arch/cris/arch-v32/drivers/mach-a3/nandflash.c
@@ -16,7 +16,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <arch/memmap.h>
#include <hwregs/reg_map.h>
diff --git a/arch/cris/arch-v32/drivers/mach-fs/nandflash.c b/arch/cris/arch-v32/drivers/mach-fs/nandflash.c
index a74540514bdb..53b56a429dde 100644
--- a/arch/cris/arch-v32/drivers/mach-fs/nandflash.c
+++ b/arch/cris/arch-v32/drivers/mach-fs/nandflash.c
@@ -16,7 +16,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <arch/memmap.h>
#include <hwregs/reg_map.h>
diff --git a/arch/cris/arch-v32/drivers/pci/bios.c b/arch/cris/arch-v32/drivers/pci/bios.c
index 394c2a73d5e2..5cc622c0225e 100644
--- a/arch/cris/arch-v32/drivers/pci/bios.c
+++ b/arch/cris/arch-v32/drivers/pci/bios.c
@@ -2,10 +2,6 @@
#include <linux/kernel.h>
#include <hwregs/intr_vect.h>
-void pcibios_fixup_bus(struct pci_bus *b)
-{
-}
-
void pcibios_set_master(struct pci_dev *dev)
{
u8 lat;
diff --git a/arch/cris/arch-v32/mach-a3/arbiter.c b/arch/cris/arch-v32/mach-a3/arbiter.c
index ab5c421a4de8..735a9b0abdb8 100644
--- a/arch/cris/arch-v32/mach-a3/arbiter.c
+++ b/arch/cris/arch-v32/mach-a3/arbiter.c
@@ -227,7 +227,7 @@ static void crisv32_arbiter_config(int arbiter, int region, int unused_slots)
}
}
-extern char _stext, _etext;
+extern char _stext[], _etext[];
static void crisv32_arbiter_init(void)
{
@@ -265,7 +265,7 @@ static void crisv32_arbiter_init(void)
#ifndef CONFIG_ETRAX_KGDB
/* Global watch for writes to kernel text segment. */
- crisv32_arbiter_watch(virt_to_phys(&_stext), &_etext - &_stext,
+ crisv32_arbiter_watch(virt_to_phys(_stext), _etext - _stext,
MARB_CLIENTS(arbiter_all_clients, arbiter_bar_all_clients),
arbiter_all_write, NULL);
#endif
diff --git a/arch/cris/arch-v32/mach-fs/arbiter.c b/arch/cris/arch-v32/mach-fs/arbiter.c
index c97f4d8120f9..047c70bdbb23 100644
--- a/arch/cris/arch-v32/mach-fs/arbiter.c
+++ b/arch/cris/arch-v32/mach-fs/arbiter.c
@@ -158,7 +158,7 @@ static void crisv32_arbiter_config(int region, int unused_slots)
}
}
-extern char _stext, _etext;
+extern char _stext[], _etext[];
static void crisv32_arbiter_init(void)
{
@@ -190,7 +190,7 @@ static void crisv32_arbiter_init(void)
#ifndef CONFIG_ETRAX_KGDB
/* Global watch for writes to kernel text segment. */
- crisv32_arbiter_watch(virt_to_phys(&_stext), &_etext - &_stext,
+ crisv32_arbiter_watch(virt_to_phys(_stext), _etext - _stext,
arbiter_all_clients, arbiter_all_write, NULL);
#endif
}
diff --git a/arch/cris/include/asm/Kbuild b/arch/cris/include/asm/Kbuild
index 2890099992a9..460349cb147f 100644
--- a/arch/cris/include/asm/Kbuild
+++ b/arch/cris/include/asm/Kbuild
@@ -1,49 +1,31 @@
generic-y += atomic.h
-generic-y += auxvec.h
generic-y += barrier.h
-generic-y += bitsperlong.h
generic-y += clkdev.h
generic-y += cmpxchg.h
generic-y += current.h
generic-y += device.h
generic-y += div64.h
-generic-y += errno.h
+generic-y += emergency-restart.h
generic-y += exec.h
generic-y += extable.h
-generic-y += emergency-restart.h
-generic-y += fcntl.h
generic-y += futex.h
generic-y += hardirq.h
-generic-y += ioctl.h
-generic-y += ipcbuf.h
generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += kdebug.h
generic-y += kmap_types.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
generic-y += linkage.h
generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
-generic-y += mman.h
generic-y += module.h
-generic-y += msgbuf.h
generic-y += percpu.h
-generic-y += poll.h
generic-y += preempt.h
-generic-y += resource.h
generic-y += sections.h
-generic-y += sembuf.h
-generic-y += shmbuf.h
-generic-y += siginfo.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += statfs.h
generic-y += topology.h
generic-y += trace_clock.h
-generic-y += types.h
generic-y += vga.h
generic-y += word-at-a-time.h
generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/cris/include/asm/uaccess.h b/arch/cris/include/asm/uaccess.h
index 0d473aec3066..b0c6b077b632 100644
--- a/arch/cris/include/asm/uaccess.h
+++ b/arch/cris/include/asm/uaccess.h
@@ -173,12 +173,6 @@ extern unsigned long __copy_user_in(void *to, const void __user *from, unsigned
extern unsigned long __do_clear_user(void __user *to, unsigned long n);
static inline long
-__strncpy_from_user(char *dst, const char __user *src, long count)
-{
- return __do_strncpy_from_user(dst, src, count);
-}
-
-static inline long
strncpy_from_user(char *dst, const char __user *src, long count)
{
long res = -EFAULT;
@@ -363,6 +357,4 @@ __clear_user(void __user *to, unsigned long n)
return __do_clear_user(to, n);
}
-#define strlen_user(str) strnlen_user((str), 0x7ffffffe)
-
#endif /* _CRIS_UACCESS_H */
diff --git a/arch/cris/include/uapi/asm/Kbuild b/arch/cris/include/uapi/asm/Kbuild
index b15bf6bc0e94..3687b54bb18e 100644
--- a/arch/cris/include/uapi/asm/Kbuild
+++ b/arch/cris/include/uapi/asm/Kbuild
@@ -1,2 +1,21 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += poll.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
+generic-y += siginfo.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += statfs.h
+generic-y += types.h
diff --git a/arch/cris/kernel/traps.c b/arch/cris/kernel/traps.c
index a01636a12a6e..d98131c45bb5 100644
--- a/arch/cris/kernel/traps.c
+++ b/arch/cris/kernel/traps.c
@@ -42,7 +42,7 @@ void (*nmi_handler)(struct pt_regs *);
void show_trace(unsigned long *stack)
{
unsigned long addr, module_start, module_end;
- extern char _stext, _etext;
+ extern char _stext[], _etext[];
int i;
pr_err("\nCall Trace: ");
@@ -69,8 +69,8 @@ void show_trace(unsigned long *stack)
* down the cause of the crash will be able to figure
* out the call path that was taken.
*/
- if (((addr >= (unsigned long)&_stext) &&
- (addr <= (unsigned long)&_etext)) ||
+ if (((addr >= (unsigned long)_stext) &&
+ (addr <= (unsigned long)_etext)) ||
((addr >= module_start) && (addr <= module_end))) {
#ifdef CONFIG_KALLSYMS
print_ip_sym(addr);
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index eefd9a4ed156..1cce8243449e 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -17,6 +17,9 @@ config FRV
select HAVE_DEBUG_STACKOVERFLOW
select ARCH_NO_COHERENT_DMA_MMAP
+config CPU_BIG_ENDIAN
+ def_bool y
+
config ZONE_DMA
bool
default y
diff --git a/arch/frv/include/asm/Kbuild b/arch/frv/include/asm/Kbuild
index cce3bc3603ea..2cf7648787b2 100644
--- a/arch/frv/include/asm/Kbuild
+++ b/arch/frv/include/asm/Kbuild
@@ -1,7 +1,9 @@
generic-y += clkdev.h
+generic-y += device.h
generic-y += exec.h
generic-y += extable.h
+generic-y += fb.h
generic-y += irq_work.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
diff --git a/arch/frv/include/asm/cmpxchg.h b/arch/frv/include/asm/cmpxchg.h
index a899765102ea..ad1f11cfa92a 100644
--- a/arch/frv/include/asm/cmpxchg.h
+++ b/arch/frv/include/asm/cmpxchg.h
@@ -76,6 +76,7 @@ extern uint32_t __xchg_32(uint32_t i, volatile void *v);
* - if (*ptr != test) then orig = *ptr;
*/
extern uint64_t __cmpxchg_64(uint64_t test, uint64_t new, volatile uint64_t *v);
+#define cmpxchg64(p, o, n) __cmpxchg_64((o), (n), (p))
#ifndef CONFIG_FRV_OUTOFLINE_ATOMIC_OPS
diff --git a/arch/frv/include/asm/device.h b/arch/frv/include/asm/device.h
deleted file mode 100644
index d8f9872b0e2d..000000000000
--- a/arch/frv/include/asm/device.h
+++ /dev/null
@@ -1,7 +0,0 @@
-/*
- * Arch specific extensions to struct device
- *
- * This file is released under the GPLv2
- */
-#include <asm-generic/device.h>
-
diff --git a/arch/frv/include/asm/fb.h b/arch/frv/include/asm/fb.h
deleted file mode 100644
index c7df38030992..000000000000
--- a/arch/frv/include/asm/fb.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _ASM_FB_H_
-#define _ASM_FB_H_
-#include <linux/fb.h>
-
-#define fb_pgprotect(...) do {} while (0)
-
-static inline int fb_is_primary_device(struct fb_info *info)
-{
- return 0;
-}
-
-#endif /* _ASM_FB_H_ */
diff --git a/arch/frv/include/asm/futex.h b/arch/frv/include/asm/futex.h
index 2e1da71e27a4..ab346f5f8820 100644
--- a/arch/frv/include/asm/futex.h
+++ b/arch/frv/include/asm/futex.h
@@ -7,7 +7,8 @@
#include <asm/errno.h>
#include <linux/uaccess.h>
-extern int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr);
+extern int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+ u32 __user *uaddr);
static inline int
futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
diff --git a/arch/frv/include/asm/processor.h b/arch/frv/include/asm/processor.h
index e4d08d74ed9f..021cce78b401 100644
--- a/arch/frv/include/asm/processor.h
+++ b/arch/frv/include/asm/processor.h
@@ -92,10 +92,6 @@ static inline void release_thread(struct task_struct *dead_task)
extern asmlinkage void save_user_regs(struct user_context *target);
extern asmlinkage void *restore_user_regs(const struct user_context *target, ...);
-#define copy_segments(tsk, mm) do { } while (0)
-#define release_segments(mm) do { } while (0)
-#define forget_segments() do { } while (0)
-
unsigned long get_wchan(struct task_struct *p);
#define KSTK_EIP(tsk) ((tsk)->thread.frame0->pc)
diff --git a/arch/frv/include/asm/tlbflush.h b/arch/frv/include/asm/tlbflush.h
index 7ac5eafc5d98..75879420f578 100644
--- a/arch/frv/include/asm/tlbflush.h
+++ b/arch/frv/include/asm/tlbflush.h
@@ -18,10 +18,10 @@
#ifdef CONFIG_MMU
#ifndef __ASSEMBLY__
-extern void asmlinkage __flush_tlb_all(void);
-extern void asmlinkage __flush_tlb_mm(unsigned long contextid);
-extern void asmlinkage __flush_tlb_page(unsigned long contextid, unsigned long start);
-extern void asmlinkage __flush_tlb_range(unsigned long contextid,
+extern asmlinkage void __flush_tlb_all(void);
+extern asmlinkage void __flush_tlb_mm(unsigned long contextid);
+extern asmlinkage void __flush_tlb_page(unsigned long contextid, unsigned long start);
+extern asmlinkage void __flush_tlb_range(unsigned long contextid,
unsigned long start, unsigned long end);
#endif /* !__ASSEMBLY__ */
diff --git a/arch/frv/include/asm/uaccess.h b/arch/frv/include/asm/uaccess.h
index e4e33b4cd3ae..ff9562dc6825 100644
--- a/arch/frv/include/asm/uaccess.h
+++ b/arch/frv/include/asm/uaccess.h
@@ -282,6 +282,4 @@ clear_user(void __user *to, unsigned long n)
extern long strncpy_from_user(char *dst, const char __user *src, long count);
extern long strnlen_user(const char __user *src, long count);
-#define strlen_user(str) strnlen_user(str, 32767)
-
#endif /* _ASM_UACCESS_H */
diff --git a/arch/frv/include/uapi/asm/siginfo.h b/arch/frv/include/uapi/asm/siginfo.h
index d3fd1ca45653..f55d9e0e9068 100644
--- a/arch/frv/include/uapi/asm/siginfo.h
+++ b/arch/frv/include/uapi/asm/siginfo.h
@@ -4,7 +4,7 @@
#include <linux/types.h>
#include <asm-generic/siginfo.h>
-#define FPE_MDAOVF (__SI_FAULT|9) /* media overflow */
+#define FPE_MDAOVF 9 /* media overflow */
#undef NSIGFPE
#define NSIGFPE 9
diff --git a/arch/frv/include/uapi/asm/socket.h b/arch/frv/include/uapi/asm/socket.h
index 1ccf45657472..9abf02d6855a 100644
--- a/arch/frv/include/uapi/asm/socket.h
+++ b/arch/frv/include/uapi/asm/socket.h
@@ -98,5 +98,11 @@
#define SO_COOKIE 57
+#define SCM_TIMESTAMPING_PKTINFO 58
+
+#define SO_PEERGROUPS 59
+
+#define SO_ZEROCOPY 60
+
#endif /* _ASM_SOCKET_H */
diff --git a/arch/frv/kernel/futex.c b/arch/frv/kernel/futex.c
index d155ca9e5098..37f7b2bf7f73 100644
--- a/arch/frv/kernel/futex.c
+++ b/arch/frv/kernel/futex.c
@@ -186,20 +186,10 @@ static inline int atomic_futex_op_xchg_xor(int oparg, u32 __user *uaddr, int *_o
/*
* do the futex operations
*/
-int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
int oldval = 0, ret;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
- return -EFAULT;
-
pagefault_disable();
switch (op) {
@@ -225,18 +215,9 @@ int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
pagefault_enable();
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
- case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
- case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
- case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
- case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
- case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
- default: ret = -ENOSYS; break;
- }
- }
+ if (!ret)
+ *oval = oldval;
return ret;
-} /* end futex_atomic_op_inuser() */
+} /* end arch_futex_atomic_op_inuser() */
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 3ae852507e57..3089f7fe2abd 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -15,7 +15,7 @@ config H8300
select OF_IRQ
select OF_EARLY_FLATTREE
select HAVE_MEMBLOCK
- select CLKSRC_OF
+ select TIMER_OF
select H8300_TMR8
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_LZO
@@ -23,6 +23,9 @@ config H8300
select HAVE_ARCH_HASH
select CPU_NO_EFFICIENT_FFS
+config CPU_BIG_ENDIAN
+ def_bool y
+
config RWSEM_GENERIC_SPINLOCK
def_bool y
diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild
index 757cdeb24e6e..bc077491d299 100644
--- a/arch/h8300/include/asm/Kbuild
+++ b/arch/h8300/include/asm/Kbuild
@@ -1,5 +1,4 @@
generic-y += asm-offsets.h
-generic-y += auxvec.h
generic-y += barrier.h
generic-y += bugs.h
generic-y += cacheflush.h
@@ -11,67 +10,41 @@ generic-y += device.h
generic-y += div64.h
generic-y += dma.h
generic-y += emergency-restart.h
-generic-y += errno.h
generic-y += exec.h
generic-y += extable.h
generic-y += fb.h
-generic-y += fcntl.h
generic-y += ftrace.h
generic-y += futex.h
generic-y += hardirq.h
generic-y += hash.h
generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += kdebug.h
generic-y += kmap_types.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
generic-y += linkage.h
generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
-generic-y += mman.h
generic-y += mmu.h
generic-y += mmu_context.h
generic-y += module.h
-generic-y += msgbuf.h
-generic-y += param.h
generic-y += parport.h
generic-y += percpu.h
generic-y += pgalloc.h
-generic-y += poll.h
-generic-y += posix_types.h
generic-y += preempt.h
-generic-y += resource.h
generic-y += scatterlist.h
generic-y += sections.h
-generic-y += sembuf.h
generic-y += serial.h
-generic-y += setup.h
-generic-y += shmbuf.h
-generic-y += shmparam.h
-generic-y += siginfo.h
generic-y += sizes.h
-generic-y += socket.h
-generic-y += sockios.h
generic-y += spinlock.h
-generic-y += stat.h
-generic-y += statfs.h
-generic-y += swab.h
-generic-y += termbits.h
-generic-y += termios.h
generic-y += timex.h
generic-y += tlbflush.h
-generic-y += trace_clock.h
generic-y += topology.h
-generic-y += types.h
-generic-y += ucontext.h
+generic-y += trace_clock.h
generic-y += unaligned.h
generic-y += vga.h
generic-y += word-at-a-time.h
generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/h8300/include/asm/flat.h b/arch/h8300/include/asm/flat.h
index a4898eccf2bf..7e0bd6fa1532 100644
--- a/arch/h8300/include/asm/flat.h
+++ b/arch/h8300/include/asm/flat.h
@@ -5,6 +5,8 @@
#ifndef __H8300_FLAT_H__
#define __H8300_FLAT_H__
+#include <asm/unaligned.h>
+
#define flat_argvp_envp_on_stack() 1
#define flat_old_ram_flag(flags) 1
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
@@ -18,11 +20,21 @@
*/
#define flat_get_relocate_addr(rel) (rel & ~0x00000001)
-#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
- ({(void)persistent; \
- get_unaligned(rp) & (((flags) & FLAT_FLAG_GOTPIC) ? \
- 0xffffffff : 0x00ffffff); })
-#define flat_put_addr_at_rp(rp, addr, rel) \
- put_unaligned(((*(char *)(rp)) << 24) | ((addr) & 0x00ffffff), (rp))
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+ u32 val = get_unaligned((__force u32 *)rp);
+ if (!(flags & FLAT_FLAG_GOTPIC))
+ val &= 0x00ffffff;
+ *addr = val;
+ return 0;
+}
+
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+ u32 *p = (__force u32 *)rp;
+ put_unaligned((addr & 0x00ffffff) | (*(char *)p << 24), p);
+ return 0;
+}
#endif /* __H8300_FLAT_H__ */
diff --git a/arch/h8300/include/asm/traps.h b/arch/h8300/include/asm/traps.h
index 15e701130b27..1c5a30ec2df8 100644
--- a/arch/h8300/include/asm/traps.h
+++ b/arch/h8300/include/asm/traps.h
@@ -33,9 +33,9 @@ extern unsigned long *_interrupt_redirect_table;
#define TRAP2_VEC 10
#define TRAP3_VEC 11
-extern char _start, _etext;
+extern char _start[], _etext[];
#define check_kernel_text(addr) \
- ((addr >= (unsigned long)(&_start)) && \
- (addr < (unsigned long)(&_etext)) && !(addr & 1))
+ ((addr >= (unsigned long)(_start)) && \
+ (addr < (unsigned long)(_etext)) && !(addr & 1))
#endif /* _H8300_TRAPS_H */
diff --git a/arch/h8300/include/uapi/asm/Kbuild b/arch/h8300/include/uapi/asm/Kbuild
index b15bf6bc0e94..187aed820e71 100644
--- a/arch/h8300/include/uapi/asm/Kbuild
+++ b/arch/h8300/include/uapi/asm/Kbuild
@@ -1,2 +1,30 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+
+generic-y += auxvec.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += setup.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
+generic-y += siginfo.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += swab.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
+generic-y += ucontext.h
diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c
index c8c25a4e9e48..6be15d634650 100644
--- a/arch/h8300/kernel/setup.c
+++ b/arch/h8300/kernel/setup.c
@@ -246,5 +246,5 @@ void __init calibrate_delay(void)
void __init time_init(void)
{
of_clk_init(NULL);
- clocksource_probe();
+ timer_probe();
}
diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild
index 6b45ef79eb8f..34013683d123 100644
--- a/arch/hexagon/include/asm/Kbuild
+++ b/arch/hexagon/include/asm/Kbuild
@@ -1,4 +1,3 @@
-generic-y += auxvec.h
generic-y += barrier.h
generic-y += bug.h
generic-y += bugs.h
@@ -7,54 +6,32 @@ generic-y += current.h
generic-y += device.h
generic-y += div64.h
generic-y += emergency-restart.h
-generic-y += errno.h
generic-y += extable.h
generic-y += fb.h
-generic-y += fcntl.h
generic-y += ftrace.h
generic-y += hardirq.h
generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
generic-y += iomap.h
-generic-y += ipcbuf.h
generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += kdebug.h
generic-y += kmap_types.h
+generic-y += kprobes.h
generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
-generic-y += mman.h
-generic-y += msgbuf.h
generic-y += pci.h
generic-y += percpu.h
-generic-y += poll.h
-generic-y += posix_types.h
generic-y += preempt.h
-generic-y += resource.h
generic-y += rwsem.h
generic-y += sections.h
generic-y += segment.h
-generic-y += sembuf.h
generic-y += serial.h
-generic-y += shmbuf.h
-generic-y += shmparam.h
-generic-y += siginfo.h
generic-y += sizes.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += stat.h
-generic-y += statfs.h
-generic-y += termbits.h
-generic-y += termios.h
generic-y += topology.h
generic-y += trace_clock.h
-generic-y += types.h
-generic-y += ucontext.h
generic-y += unaligned.h
generic-y += vga.h
generic-y += word-at-a-time.h
generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/hexagon/include/asm/atomic.h b/arch/hexagon/include/asm/atomic.h
index a62ba368b27d..fb3dfb2a667e 100644
--- a/arch/hexagon/include/asm/atomic.h
+++ b/arch/hexagon/include/asm/atomic.h
@@ -42,6 +42,8 @@ static inline void atomic_set(atomic_t *v, int new)
);
}
+#define atomic_set_release(v, i) atomic_set((v), (i))
+
/**
* atomic_read - reads a word, atomically
* @v: pointer to atomic value
diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index d3a87bd9b686..463dbc18f853 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -29,8 +29,6 @@
#include <asm/io.h>
struct device;
-extern int bad_dma_address;
-#define DMA_ERROR_CODE bad_dma_address
extern const struct dma_map_ops *dma_ops;
@@ -39,9 +37,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
return dma_ops;
}
-#define HAVE_ARCH_DMA_SUPPORTED 1
-extern int dma_supported(struct device *dev, u64 mask);
-extern int dma_is_consistent(struct device *dev, dma_addr_t dma_handle);
extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction);
diff --git a/arch/hexagon/include/asm/futex.h b/arch/hexagon/include/asm/futex.h
index 7e597f8434da..c607b77c8215 100644
--- a/arch/hexagon/include/asm/futex.h
+++ b/arch/hexagon/include/asm/futex.h
@@ -31,18 +31,9 @@
static inline int
-futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
int oldval = 0, ret;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
- return -EFAULT;
pagefault_disable();
@@ -72,30 +63,9 @@ futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
pagefault_enable();
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ:
- ret = (oldval == cmparg);
- break;
- case FUTEX_OP_CMP_NE:
- ret = (oldval != cmparg);
- break;
- case FUTEX_OP_CMP_LT:
- ret = (oldval < cmparg);
- break;
- case FUTEX_OP_CMP_GE:
- ret = (oldval >= cmparg);
- break;
- case FUTEX_OP_CMP_LE:
- ret = (oldval <= cmparg);
- break;
- case FUTEX_OP_CMP_GT:
- ret = (oldval > cmparg);
- break;
- default:
- ret = -ENOSYS;
- }
- }
+ if (!ret)
+ *oval = oldval;
+
return ret;
}
diff --git a/arch/hexagon/include/asm/pgtable.h b/arch/hexagon/include/asm/pgtable.h
index 24a9177fb897..aef02f7ca8aa 100644
--- a/arch/hexagon/include/asm/pgtable.h
+++ b/arch/hexagon/include/asm/pgtable.h
@@ -24,7 +24,6 @@
/*
* Page table definitions for Qualcomm Hexagon processor.
*/
-#include <linux/swap.h>
#include <asm/page.h>
#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
diff --git a/arch/hexagon/include/asm/spinlock.h b/arch/hexagon/include/asm/spinlock.h
index a1c55788c5d6..53a8d5885887 100644
--- a/arch/hexagon/include/asm/spinlock.h
+++ b/arch/hexagon/include/asm/spinlock.h
@@ -179,11 +179,6 @@ static inline unsigned int arch_spin_trylock(arch_spinlock_t *lock)
*/
#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- smp_cond_load_acquire(&lock->lock, !VAL);
-}
-
#define arch_spin_is_locked(x) ((x)->lock != 0)
#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
diff --git a/arch/hexagon/include/uapi/asm/Kbuild b/arch/hexagon/include/uapi/asm/Kbuild
index b15bf6bc0e94..cb5df3aad3a8 100644
--- a/arch/hexagon/include/uapi/asm/Kbuild
+++ b/arch/hexagon/include/uapi/asm/Kbuild
@@ -1,2 +1,26 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+
+generic-y += auxvec.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
+generic-y += siginfo.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
+generic-y += ucontext.h
diff --git a/arch/hexagon/kernel/asm-offsets.c b/arch/hexagon/kernel/asm-offsets.c
index 308be68d4fb3..3980c0407aa1 100644
--- a/arch/hexagon/kernel/asm-offsets.c
+++ b/arch/hexagon/kernel/asm-offsets.c
@@ -25,7 +25,6 @@
#include <linux/compat.h>
#include <linux/types.h>
#include <linux/sched.h>
-#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/kbuild.h>
#include <asm/ptrace.h>
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index e74b65009587..546792d176a4 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -25,25 +25,16 @@
#include <linux/module.h>
#include <asm/page.h>
+#define HEXAGON_MAPPING_ERROR 0
+
const struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
-int bad_dma_address; /* globals are automatically initialized to zero */
-
static inline void *dma_addr_to_virt(dma_addr_t dma_addr)
{
return phys_to_virt((unsigned long) dma_addr);
}
-int dma_supported(struct device *dev, u64 mask)
-{
- if (mask == DMA_BIT_MASK(32))
- return 1;
- else
- return 0;
-}
-EXPORT_SYMBOL(dma_supported);
-
static struct gen_pool *coherent_pool;
@@ -181,7 +172,7 @@ static dma_addr_t hexagon_map_page(struct device *dev, struct page *page,
WARN_ON(size == 0);
if (!check_addr("map_single", dev, bus, size))
- return bad_dma_address;
+ return HEXAGON_MAPPING_ERROR;
if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
dma_sync(dma_addr_to_virt(bus), size, dir);
@@ -203,6 +194,11 @@ static void hexagon_sync_single_for_device(struct device *dev,
dma_sync(dma_addr_to_virt(dma_handle), size, dir);
}
+static int hexagon_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return dma_addr == HEXAGON_MAPPING_ERROR;
+}
+
const struct dma_map_ops hexagon_dma_ops = {
.alloc = hexagon_dma_alloc_coherent,
.free = hexagon_free_coherent,
@@ -210,6 +206,7 @@ const struct dma_map_ops hexagon_dma_ops = {
.map_page = hexagon_map_page,
.sync_single_for_cpu = hexagon_sync_single_for_cpu,
.sync_single_for_device = hexagon_sync_single_for_device,
+ .mapping_error = hexagon_mapping_error,
.is_phys = 1,
};
diff --git a/arch/hexagon/kernel/hexagon_ksyms.c b/arch/hexagon/kernel/hexagon_ksyms.c
index 00bcad9cbd8f..aa248f595431 100644
--- a/arch/hexagon/kernel/hexagon_ksyms.c
+++ b/arch/hexagon/kernel/hexagon_ksyms.c
@@ -40,7 +40,6 @@ EXPORT_SYMBOL(memset);
/* Additional variables */
EXPORT_SYMBOL(__phys_offset);
EXPORT_SYMBOL(_dflt_cache_att);
-EXPORT_SYMBOL(bad_dma_address);
#define DECLARE_EXPORT(name) \
extern void name(void); EXPORT_SYMBOL(name)
diff --git a/arch/hexagon/mm/vm_tlb.c b/arch/hexagon/mm/vm_tlb.c
index 9647d00cb761..b474065533ce 100644
--- a/arch/hexagon/mm/vm_tlb.c
+++ b/arch/hexagon/mm/vm_tlb.c
@@ -24,6 +24,7 @@
* be instantiated for it, differently from a native build.
*/
#include <linux/mm.h>
+#include <linux/sched.h>
#include <asm/page.h>
#include <asm/hexagon_vm.h>
diff --git a/arch/ia64/Kconfig.debug b/arch/ia64/Kconfig.debug
index de9d507ba0fd..4763887ba368 100644
--- a/arch/ia64/Kconfig.debug
+++ b/arch/ia64/Kconfig.debug
@@ -56,9 +56,4 @@ config IA64_DEBUG_IRQ
and restore instructions. It's useful for tracking down spinlock
problems, but slow! If you're unsure, select N.
-config SYSVIPC_COMPAT
- bool
- depends on COMPAT && SYSVIPC
- default y
-
endmenu
diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c
index de8cba121013..70d52e9bb575 100644
--- a/arch/ia64/hp/sim/simserial.c
+++ b/arch/ia64/hp/sim/simserial.c
@@ -387,19 +387,6 @@ static int activate(struct tty_port *port, struct tty_struct *tty)
}
state->xmit.head = state->xmit.tail = 0;
-
- /*
- * Set up the tty->alt_speed kludge
- */
- if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- tty->alt_speed = 57600;
- if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- tty->alt_speed = 115200;
- if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
- tty->alt_speed = 230400;
- if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
- tty->alt_speed = 460800;
-
errout:
local_irq_restore(flags);
return retval;
diff --git a/arch/ia64/include/asm/Kbuild b/arch/ia64/include/asm/Kbuild
index 502a91d8dbbd..1d7641f891e1 100644
--- a/arch/ia64/include/asm/Kbuild
+++ b/arch/ia64/include/asm/Kbuild
@@ -1,8 +1,6 @@
-
generic-y += clkdev.h
generic-y += exec.h
generic-y += irq_work.h
-generic-y += kvm_para.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
generic-y += preempt.h
diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index a3d0211970e9..c86a947f5368 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -112,8 +112,6 @@ static inline void arch_acpi_set_pdc_bits(u32 *buf)
buf[2] |= ACPI_PDC_EST_CAPABILITY_SMP;
}
-#define acpi_unlazy_tlb(x)
-
#ifdef CONFIG_ACPI_NUMA
extern cpumask_t early_cpu_possible_map;
#define for_each_possible_early_cpu(cpu) \
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index 73ec3c6f4cfe..3ce5ab4339f3 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -12,8 +12,6 @@
#define ARCH_HAS_DMA_GET_REQUIRED_MASK
-#define DMA_ERROR_CODE 0
-
extern const struct dma_map_ops *dma_ops;
extern struct ia64_machine_vector ia64_mv;
extern void set_iommu_machvec(void);
diff --git a/arch/ia64/include/asm/futex.h b/arch/ia64/include/asm/futex.h
index 76acbcd5c060..6d67dc1eaf2b 100644
--- a/arch/ia64/include/asm/futex.h
+++ b/arch/ia64/include/asm/futex.h
@@ -45,18 +45,9 @@ do { \
} while (0)
static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
int oldval = 0, ret;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
- return -EFAULT;
pagefault_disable();
@@ -84,17 +75,9 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
pagefault_enable();
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
- case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
- case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
- case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
- case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
- case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
- default: ret = -ENOSYS;
- }
- }
+ if (!ret)
+ *oval = oldval;
+
return ret;
}
diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h
index 5de673ac9cb1..a2540e21f919 100644
--- a/arch/ia64/include/asm/io.h
+++ b/arch/ia64/include/asm/io.h
@@ -117,7 +117,7 @@ extern int valid_mmap_phys_addr_range (unsigned long pfn, size_t count);
* following the barrier will arrive after all previous writes. For most
* ia64 platforms, this is a simple 'mf.a' instruction.
*
- * See Documentation/DocBook/deviceiobook.tmpl for more information.
+ * See Documentation/driver-api/device-io.rst for more information.
*/
static inline void ___ia64_mmiowb(void)
{
diff --git a/arch/ia64/include/asm/siginfo.h b/arch/ia64/include/asm/siginfo.h
deleted file mode 100644
index 6f2e2dd0f28f..000000000000
--- a/arch/ia64/include/asm/siginfo.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Based on <asm-i386/siginfo.h>.
- *
- * Modified 1998-2002
- * David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
- */
-#ifndef _ASM_IA64_SIGINFO_H
-#define _ASM_IA64_SIGINFO_H
-
-#include <linux/string.h>
-#include <uapi/asm/siginfo.h>
-
-static inline void
-copy_siginfo (siginfo_t *to, siginfo_t *from)
-{
- if (from->si_code < 0)
- memcpy(to, from, sizeof(siginfo_t));
- else
- /* _sigchld is currently the largest know union member */
- memcpy(to, from, 4*sizeof(int) + sizeof(from->_sifields._sigchld));
-}
-
-#endif /* _ASM_IA64_SIGINFO_H */
diff --git a/arch/ia64/include/asm/spinlock.h b/arch/ia64/include/asm/spinlock.h
index ca9e76149a4a..df2c121164b8 100644
--- a/arch/ia64/include/asm/spinlock.h
+++ b/arch/ia64/include/asm/spinlock.h
@@ -76,22 +76,6 @@ static __always_inline void __ticket_spin_unlock(arch_spinlock_t *lock)
ACCESS_ONCE(*p) = (tmp + 2) & ~1;
}
-static __always_inline void __ticket_spin_unlock_wait(arch_spinlock_t *lock)
-{
- int *p = (int *)&lock->lock, ticket;
-
- ia64_invala();
-
- for (;;) {
- asm volatile ("ld4.c.nc %0=[%1]" : "=r"(ticket) : "r"(p) : "memory");
- if (!(((ticket >> TICKET_SHIFT) ^ ticket) & TICKET_MASK))
- return;
- cpu_relax();
- }
-
- smp_acquire__after_ctrl_dep();
-}
-
static inline int __ticket_spin_is_locked(arch_spinlock_t *lock)
{
long tmp = ACCESS_ONCE(lock->lock);
@@ -143,11 +127,6 @@ static __always_inline void arch_spin_lock_flags(arch_spinlock_t *lock,
arch_spin_lock(lock);
}
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- __ticket_spin_unlock_wait(lock);
-}
-
#define arch_read_can_lock(rw) (*(volatile int *)(rw) >= 0)
#define arch_write_can_lock(rw) (*(volatile int *)(rw) == 0)
diff --git a/arch/ia64/include/asm/tlb.h b/arch/ia64/include/asm/tlb.h
index fced197b9626..cbe5ac3699bf 100644
--- a/arch/ia64/include/asm/tlb.h
+++ b/arch/ia64/include/asm/tlb.h
@@ -168,7 +168,8 @@ static inline void __tlb_alloc_page(struct mmu_gather *tlb)
static inline void
-tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
+arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
+ unsigned long start, unsigned long end)
{
tlb->mm = mm;
tlb->max = ARRAY_SIZE(tlb->local);
@@ -185,8 +186,11 @@ tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start
* collected.
*/
static inline void
-tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
+arch_tlb_finish_mmu(struct mmu_gather *tlb,
+ unsigned long start, unsigned long end, bool force)
{
+ if (force)
+ tlb->need_flush = 1;
/*
* Note: tlb->nr may be 0 at this point, so we can't rely on tlb->start_addr and
* tlb->end_addr.
diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h
index 82a7646c4416..0890ded638f0 100644
--- a/arch/ia64/include/asm/uaccess.h
+++ b/arch/ia64/include/asm/uaccess.h
@@ -87,42 +87,6 @@ static inline int __access_ok(const void __user *p, unsigned long size)
#define __put_user(x, ptr) __put_user_nocheck((__typeof__(*(ptr))) (x), (ptr), sizeof(*(ptr)))
#define __get_user(x, ptr) __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
-extern long __put_user_unaligned_unknown (void);
-
-#define __put_user_unaligned(x, ptr) \
-({ \
- long __ret; \
- switch (sizeof(*(ptr))) { \
- case 1: __ret = __put_user((x), (ptr)); break; \
- case 2: __ret = (__put_user((x), (u8 __user *)(ptr))) \
- | (__put_user((x) >> 8, ((u8 __user *)(ptr) + 1))); break; \
- case 4: __ret = (__put_user((x), (u16 __user *)(ptr))) \
- | (__put_user((x) >> 16, ((u16 __user *)(ptr) + 1))); break; \
- case 8: __ret = (__put_user((x), (u32 __user *)(ptr))) \
- | (__put_user((x) >> 32, ((u32 __user *)(ptr) + 1))); break; \
- default: __ret = __put_user_unaligned_unknown(); \
- } \
- __ret; \
-})
-
-extern long __get_user_unaligned_unknown (void);
-
-#define __get_user_unaligned(x, ptr) \
-({ \
- long __ret; \
- switch (sizeof(*(ptr))) { \
- case 1: __ret = __get_user((x), (ptr)); break; \
- case 2: __ret = (__get_user((x), (u8 __user *)(ptr))) \
- | (__get_user((x) >> 8, ((u8 __user *)(ptr) + 1))); break; \
- case 4: __ret = (__get_user((x), (u16 __user *)(ptr))) \
- | (__get_user((x) >> 16, ((u16 __user *)(ptr) + 1))); break; \
- case 8: __ret = (__get_user((x), (u32 __user *)(ptr))) \
- | (__get_user((x) >> 32, ((u32 __user *)(ptr) + 1))); break; \
- default: __ret = __get_user_unaligned_unknown(); \
- } \
- __ret; \
-})
-
#ifdef ASM_SUPPORTED
struct __large_struct { unsigned long buf[100]; };
# define __m(x) (*(struct __large_struct __user *)(x))
@@ -277,18 +241,6 @@ extern long __must_check __strncpy_from_user (char *to, const char __user *from,
__sfu_ret; \
})
-/* Returns: 0 if bad, string length+1 (memory size) of string if ok */
-extern unsigned long __strlen_user (const char __user *);
-
-#define strlen_user(str) \
-({ \
- const char __user *__su_str = (str); \
- unsigned long __su_ret = 0; \
- if (__access_ok(__su_str, 0)) \
- __su_ret = __strlen_user(__su_str); \
- __su_ret; \
-})
-
/*
* Returns: 0 if exception before NUL or reaching the supplied limit
* (N), a value greater than N if the limit would be exceeded, else
diff --git a/arch/ia64/include/uapi/asm/siginfo.h b/arch/ia64/include/uapi/asm/siginfo.h
index f72bf0172bb2..33389fc36f23 100644
--- a/arch/ia64/include/uapi/asm/siginfo.h
+++ b/arch/ia64/include/uapi/asm/siginfo.h
@@ -11,7 +11,6 @@
#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
#define HAVE_ARCH_SIGINFO_T
-#define HAVE_ARCH_COPY_SIGINFO
#define HAVE_ARCH_COPY_SIGINFO_TO_USER
#include <asm-generic/siginfo.h>
@@ -99,27 +98,30 @@ typedef struct siginfo {
/*
* SIGILL si_codes
*/
-#define ILL_BADIADDR (__SI_FAULT|9) /* unimplemented instruction address */
-#define __ILL_BREAK (__SI_FAULT|10) /* illegal break */
-#define __ILL_BNDMOD (__SI_FAULT|11) /* bundle-update (modification) in progress */
+#define ILL_BADIADDR 9 /* unimplemented instruction address */
+#define __ILL_BREAK 10 /* illegal break */
+#define __ILL_BNDMOD 11 /* bundle-update (modification) in progress */
#undef NSIGILL
#define NSIGILL 11
/*
* SIGFPE si_codes
*/
-#define __FPE_DECOVF (__SI_FAULT|9) /* decimal overflow */
-#define __FPE_DECDIV (__SI_FAULT|10) /* decimal division by zero */
-#define __FPE_DECERR (__SI_FAULT|11) /* packed decimal error */
-#define __FPE_INVASC (__SI_FAULT|12) /* invalid ASCII digit */
-#define __FPE_INVDEC (__SI_FAULT|13) /* invalid decimal digit */
+#ifdef __KERNEL__
+#define FPE_FIXME 0 /* Broken dup of SI_USER */
+#endif /* __KERNEL__ */
+#define __FPE_DECOVF 9 /* decimal overflow */
+#define __FPE_DECDIV 10 /* decimal division by zero */
+#define __FPE_DECERR 11 /* packed decimal error */
+#define __FPE_INVASC 12 /* invalid ASCII digit */
+#define __FPE_INVDEC 13 /* invalid decimal digit */
#undef NSIGFPE
#define NSIGFPE 13
/*
* SIGSEGV si_codes
*/
-#define __SEGV_PSTKOVF (__SI_FAULT|4) /* paragraph stack overflow */
+#define __SEGV_PSTKOVF 4 /* paragraph stack overflow */
#undef NSIGSEGV
#define NSIGSEGV 4
diff --git a/arch/ia64/include/uapi/asm/socket.h b/arch/ia64/include/uapi/asm/socket.h
index 2c3f4b48042a..002eb85a6941 100644
--- a/arch/ia64/include/uapi/asm/socket.h
+++ b/arch/ia64/include/uapi/asm/socket.h
@@ -107,4 +107,10 @@
#define SO_COOKIE 57
+#define SCM_TIMESTAMPING_PKTINFO 58
+
+#define SO_PEERGROUPS 59
+
+#define SO_ZEROCOPY 60
+
#endif /* _ASM_IA64_SOCKET_H */
diff --git a/arch/ia64/kernel/Makefile.gate b/arch/ia64/kernel/Makefile.gate
index a32903ada016..7da7c65a9bb1 100644
--- a/arch/ia64/kernel/Makefile.gate
+++ b/arch/ia64/kernel/Makefile.gate
@@ -1,8 +1,8 @@
# The gate DSO image is built using a special linker script.
-targets += gate.so gate-syms.o
+targets += gate.so gate.lds gate.o gate-dummy.o
-extra-y += gate.so gate-syms.o gate.lds gate.o
+obj-y += gate-syms.o
CPPFLAGS_gate.lds := -P -C -U$(ARCH)
@@ -14,13 +14,14 @@ GATECFLAGS_gate.so = -shared -s -Wl,-soname=linux-gate.so.1 \
$(obj)/gate.so: $(obj)/gate.lds $(obj)/gate.o FORCE
$(call if_changed,gate)
-$(obj)/built-in.o: $(obj)/gate-syms.o
-$(obj)/built-in.o: ld_flags += -R $(obj)/gate-syms.o
-
-GATECFLAGS_gate-syms.o = -r
-$(obj)/gate-syms.o: $(obj)/gate.lds $(obj)/gate.o FORCE
+GATECFLAGS_gate-dummy.o = -r
+$(obj)/gate-dummy.o: $(obj)/gate.lds $(obj)/gate.o FORCE
$(call if_changed,gate)
+LDFLAGS_gate-syms.o := -r -R
+$(obj)/gate-syms.o: $(obj)/gate-dummy.o FORCE
+ $(call if_changed,ld)
+
# gate-data.o contains the gate DSO image as data in section .data..gate.
# We must build gate.so before we can assemble it.
# Note: kbuild does not track this dependency due to usage of .incbin
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 7508c306aa9e..1d29b2f8726b 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -159,12 +159,12 @@ int acpi_request_vector(u32 int_type)
return vector;
}
-char *__init __acpi_map_table(unsigned long phys_addr, unsigned long size)
+void __init __iomem *__acpi_map_table(unsigned long phys, unsigned long size)
{
- return __va(phys_addr);
+ return __va(phys);
}
-void __init __acpi_unmap_table(char *map, unsigned long size)
+void __init __acpi_unmap_table(void __iomem *map, unsigned long size)
{
}
diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
index 121295637d0d..81416000c5e0 100644
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -757,14 +757,14 @@ efi_memmap_intersects (unsigned long phys_addr, unsigned long size)
return 0;
}
-u32
+int
efi_mem_type (unsigned long phys_addr)
{
efi_memory_desc_t *md = efi_memory_descriptor(phys_addr);
if (md)
return md->type;
- return 0;
+ return -EINVAL;
}
u64
diff --git a/arch/ia64/kernel/machine_kexec.c b/arch/ia64/kernel/machine_kexec.c
index 599507bcec91..c14815dca747 100644
--- a/arch/ia64/kernel/machine_kexec.c
+++ b/arch/ia64/kernel/machine_kexec.c
@@ -163,8 +163,3 @@ void arch_crash_save_vmcoreinfo(void)
#endif
}
-phys_addr_t paddr_vmcoreinfo_note(void)
-{
- return ia64_tpa((unsigned long)(char *)&vmcoreinfo_note);
-}
-
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 79c7c46d7dc1..555b11180156 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -334,7 +334,7 @@ static void ia64_mlogbuf_dump_from_init(void)
ia64_mlogbuf_dump();
}
-static void inline
+static inline void
ia64_mca_spin(const char *func)
{
if (monarch_cpu == smp_processor_id())
diff --git a/arch/ia64/kernel/signal.c b/arch/ia64/kernel/signal.c
index 5db52c6813c4..6146d53b6ad7 100644
--- a/arch/ia64/kernel/signal.c
+++ b/arch/ia64/kernel/signal.c
@@ -124,31 +124,30 @@ copy_siginfo_to_user (siginfo_t __user *to, const siginfo_t *from)
*/
err = __put_user(from->si_signo, &to->si_signo);
err |= __put_user(from->si_errno, &to->si_errno);
- err |= __put_user((short)from->si_code, &to->si_code);
- switch (from->si_code >> 16) {
- case __SI_FAULT >> 16:
+ err |= __put_user(from->si_code, &to->si_code);
+ switch (siginfo_layout(from->si_signo, from->si_code)) {
+ case SIL_FAULT:
err |= __put_user(from->si_flags, &to->si_flags);
err |= __put_user(from->si_isr, &to->si_isr);
- case __SI_POLL >> 16:
+ case SIL_POLL:
err |= __put_user(from->si_addr, &to->si_addr);
err |= __put_user(from->si_imm, &to->si_imm);
break;
- case __SI_TIMER >> 16:
+ case SIL_TIMER:
err |= __put_user(from->si_tid, &to->si_tid);
err |= __put_user(from->si_overrun, &to->si_overrun);
err |= __put_user(from->si_ptr, &to->si_ptr);
break;
- case __SI_RT >> 16: /* Not generated by the kernel as of now. */
- case __SI_MESGQ >> 16:
+ case SIL_RT:
err |= __put_user(from->si_uid, &to->si_uid);
err |= __put_user(from->si_pid, &to->si_pid);
err |= __put_user(from->si_ptr, &to->si_ptr);
break;
- case __SI_CHLD >> 16:
+ case SIL_CHLD:
err |= __put_user(from->si_utime, &to->si_utime);
err |= __put_user(from->si_stime, &to->si_stime);
err |= __put_user(from->si_status, &to->si_status);
- default:
+ case SIL_KILL:
err |= __put_user(from->si_uid, &to->si_uid);
err |= __put_user(from->si_pid, &to->si_pid);
break;
diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c
index 7b1fe9462158..3cb17cf9b362 100644
--- a/arch/ia64/kernel/traps.c
+++ b/arch/ia64/kernel/traps.c
@@ -349,7 +349,7 @@ handle_fpu_swa (int fp_fault, struct pt_regs *regs, unsigned long isr)
}
siginfo.si_signo = SIGFPE;
siginfo.si_errno = 0;
- siginfo.si_code = __SI_FAULT; /* default code */
+ siginfo.si_code = FPE_FIXME; /* default code */
siginfo.si_addr = (void __user *) (regs->cr_iip + ia64_psr(regs)->ri);
if (isr & 0x11) {
siginfo.si_code = FPE_FLTINV;
@@ -373,7 +373,7 @@ handle_fpu_swa (int fp_fault, struct pt_regs *regs, unsigned long isr)
/* raise exception */
siginfo.si_signo = SIGFPE;
siginfo.si_errno = 0;
- siginfo.si_code = __SI_FAULT; /* default code */
+ siginfo.si_code = FPE_FIXME; /* default code */
siginfo.si_addr = (void __user *) (regs->cr_iip + ia64_psr(regs)->ri);
if (isr & 0x880) {
siginfo.si_code = FPE_FLTOVF;
diff --git a/arch/ia64/lib/Makefile b/arch/ia64/lib/Makefile
index 0a40b14407b1..1a36a3a39624 100644
--- a/arch/ia64/lib/Makefile
+++ b/arch/ia64/lib/Makefile
@@ -5,7 +5,7 @@
lib-y := io.o __divsi3.o __udivsi3.o __modsi3.o __umodsi3.o \
__divdi3.o __udivdi3.o __moddi3.o __umoddi3.o \
checksum.o clear_page.o csum_partial_copy.o \
- clear_user.o strncpy_from_user.o strlen_user.o strnlen_user.o \
+ clear_user.o strncpy_from_user.o strnlen_user.o \
flush.o ip_fast_csum.o do_csum.o \
memset.o strlen.o xor.o
diff --git a/arch/ia64/lib/strlen_user.S b/arch/ia64/lib/strlen_user.S
deleted file mode 100644
index 9d257684e733..000000000000
--- a/arch/ia64/lib/strlen_user.S
+++ /dev/null
@@ -1,200 +0,0 @@
-/*
- * Optimized version of the strlen_user() function
- *
- * Inputs:
- * in0 address of buffer
- *
- * Outputs:
- * ret0 0 in case of fault, strlen(buffer)+1 otherwise
- *
- * Copyright (C) 1998, 1999, 2001 Hewlett-Packard Co
- * David Mosberger-Tang <davidm@hpl.hp.com>
- * Stephane Eranian <eranian@hpl.hp.com>
- *
- * 01/19/99 S.Eranian heavily enhanced version (see details below)
- * 09/24/99 S.Eranian added speculation recovery code
- */
-
-#include <asm/asmmacro.h>
-#include <asm/export.h>
-
-//
-// int strlen_user(char *)
-// ------------------------
-// Returns:
-// - length of string + 1
-// - 0 in case an exception is raised
-//
-// This is an enhanced version of the basic strlen_user. it includes a
-// combination of compute zero index (czx), parallel comparisons, speculative
-// loads and loop unroll using rotating registers.
-//
-// General Ideas about the algorithm:
-// The goal is to look at the string in chunks of 8 bytes.
-// so we need to do a few extra checks at the beginning because the
-// string may not be 8-byte aligned. In this case we load the 8byte
-// quantity which includes the start of the string and mask the unused
-// bytes with 0xff to avoid confusing czx.
-// We use speculative loads and software pipelining to hide memory
-// latency and do read ahead safely. This way we defer any exception.
-//
-// Because we don't want the kernel to be relying on particular
-// settings of the DCR register, we provide recovery code in case
-// speculation fails. The recovery code is going to "redo" the work using
-// only normal loads. If we still get a fault then we return an
-// error (ret0=0). Otherwise we return the strlen+1 as usual.
-// The fact that speculation may fail can be caused, for instance, by
-// the DCR.dm bit being set. In this case TLB misses are deferred, i.e.,
-// a NaT bit will be set if the translation is not present. The normal
-// load, on the other hand, will cause the translation to be inserted
-// if the mapping exists.
-//
-// It should be noted that we execute recovery code only when we need
-// to use the data that has been speculatively loaded: we don't execute
-// recovery code on pure read ahead data.
-//
-// Remarks:
-// - the cmp r0,r0 is used as a fast way to initialize a predicate
-// register to 1. This is required to make sure that we get the parallel
-// compare correct.
-//
-// - we don't use the epilogue counter to exit the loop but we need to set
-// it to zero beforehand.
-//
-// - after the loop we must test for Nat values because neither the
-// czx nor cmp instruction raise a NaT consumption fault. We must be
-// careful not to look too far for a Nat for which we don't care.
-// For instance we don't need to look at a NaT in val2 if the zero byte
-// was in val1.
-//
-// - Clearly performance tuning is required.
-//
-
-#define saved_pfs r11
-#define tmp r10
-#define base r16
-#define orig r17
-#define saved_pr r18
-#define src r19
-#define mask r20
-#define val r21
-#define val1 r22
-#define val2 r23
-
-GLOBAL_ENTRY(__strlen_user)
- .prologue
- .save ar.pfs, saved_pfs
- alloc saved_pfs=ar.pfs,11,0,0,8
-
- .rotr v[2], w[2] // declares our 4 aliases
-
- extr.u tmp=in0,0,3 // tmp=least significant 3 bits
- mov orig=in0 // keep trackof initial byte address
- dep src=0,in0,0,3 // src=8byte-aligned in0 address
- .save pr, saved_pr
- mov saved_pr=pr // preserve predicates (rotation)
- ;;
-
- .body
-
- ld8.s v[1]=[src],8 // load the initial 8bytes (must speculate)
- shl tmp=tmp,3 // multiply by 8bits/byte
- mov mask=-1 // our mask
- ;;
- ld8.s w[1]=[src],8 // load next 8 bytes in 2nd pipeline
- cmp.eq p6,p0=r0,r0 // sets p6 (required because of // cmp.and)
- sub tmp=64,tmp // how many bits to shift our mask on the right
- ;;
- shr.u mask=mask,tmp // zero enough bits to hold v[1] valuable part
- mov ar.ec=r0 // clear epilogue counter (saved in ar.pfs)
- ;;
- add base=-16,src // keep track of aligned base
- chk.s v[1], .recover // if already NaT, then directly skip to recover
- or v[1]=v[1],mask // now we have a safe initial byte pattern
- ;;
-1:
- ld8.s v[0]=[src],8 // speculatively load next
- czx1.r val1=v[1] // search 0 byte from right
- czx1.r val2=w[1] // search 0 byte from right following 8bytes
- ;;
- ld8.s w[0]=[src],8 // speculatively load next to next
- cmp.eq.and p6,p0=8,val1 // p6 = p6 and val1==8
- cmp.eq.and p6,p0=8,val2 // p6 = p6 and mask==8
-(p6) br.wtop.dptk.few 1b // loop until p6 == 0
- ;;
- //
- // We must return try the recovery code iff
- // val1_is_nat || (val1==8 && val2_is_nat)
- //
- // XXX Fixme
- // - there must be a better way of doing the test
- //
- cmp.eq p8,p9=8,val1 // p6 = val1 had zero (disambiguate)
- tnat.nz p6,p7=val1 // test NaT on val1
-(p6) br.cond.spnt .recover // jump to recovery if val1 is NaT
- ;;
- //
- // if we come here p7 is true, i.e., initialized for // cmp
- //
- cmp.eq.and p7,p0=8,val1// val1==8?
- tnat.nz.and p7,p0=val2 // test NaT if val2
-(p7) br.cond.spnt .recover // jump to recovery if val2 is NaT
- ;;
-(p8) mov val1=val2 // val2 contains the value
-(p8) adds src=-16,src // correct position when 3 ahead
-(p9) adds src=-24,src // correct position when 4 ahead
- ;;
- sub ret0=src,orig // distance from origin
- sub tmp=7,val1 // 7=8-1 because this strlen returns strlen+1
- mov pr=saved_pr,0xffffffffffff0000
- ;;
- sub ret0=ret0,tmp // length=now - back -1
- mov ar.pfs=saved_pfs // because of ar.ec, restore no matter what
- br.ret.sptk.many rp // end of normal execution
-
- //
- // Outlined recovery code when speculation failed
- //
- // This time we don't use speculation and rely on the normal exception
- // mechanism. that's why the loop is not as good as the previous one
- // because read ahead is not possible
- //
- // XXX Fixme
- // - today we restart from the beginning of the string instead
- // of trying to continue where we left off.
- //
-.recover:
- EX(.Lexit1, ld8 val=[base],8) // load the initial bytes
- ;;
- or val=val,mask // remask first bytes
- cmp.eq p0,p6=r0,r0 // nullify first ld8 in loop
- ;;
- //
- // ar.ec is still zero here
- //
-2:
- EX(.Lexit1, (p6) ld8 val=[base],8)
- ;;
- czx1.r val1=val // search 0 byte from right
- ;;
- cmp.eq p6,p0=8,val1 // val1==8 ?
-(p6) br.wtop.dptk.few 2b // loop until p6 == 0
- ;;
- sub ret0=base,orig // distance from base
- sub tmp=7,val1 // 7=8-1 because this strlen returns strlen+1
- mov pr=saved_pr,0xffffffffffff0000
- ;;
- sub ret0=ret0,tmp // length=now - back -1
- mov ar.pfs=saved_pfs // because of ar.ec, restore no matter what
- br.ret.sptk.many rp // end of successful recovery code
-
- //
- // We failed even on the normal load (called from exception handler)
- //
-.Lexit1:
- mov ret0=0
- mov pr=saved_pr,0xffffffffffff0000
- mov ar.pfs=saved_pfs // because of ar.ec, restore no matter what
- br.ret.sptk.many rp
-END(__strlen_user)
-EXPORT_SYMBOL(__strlen_user)
diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c
index 85de86d36fdf..ae35140332f7 100644
--- a/arch/ia64/mm/hugetlbpage.c
+++ b/arch/ia64/mm/hugetlbpage.c
@@ -44,7 +44,7 @@ huge_pte_alloc(struct mm_struct *mm, unsigned long addr, unsigned long sz)
}
pte_t *
-huge_pte_offset (struct mm_struct *mm, unsigned long addr)
+huge_pte_offset (struct mm_struct *mm, unsigned long addr, unsigned long sz)
{
unsigned long taddr = htlbpage_to_page(addr);
pgd_t *pgd;
@@ -92,7 +92,7 @@ struct page *follow_huge_addr(struct mm_struct *mm, unsigned long addr, int writ
if (REGION_NUMBER(addr) != RGN_HPAGE)
return ERR_PTR(-EINVAL);
- ptep = huge_pte_offset(mm, addr);
+ ptep = huge_pte_offset(mm, addr, HPAGE_SIZE);
if (!ptep || pte_none(*ptep))
return NULL;
page = pte_page(*ptep);
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 8f3efa682ee8..a4e8d6bd9cfa 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -646,20 +646,13 @@ mem_init (void)
}
#ifdef CONFIG_MEMORY_HOTPLUG
-int arch_add_memory(int nid, u64 start, u64 size, bool for_device)
+int arch_add_memory(int nid, u64 start, u64 size, bool want_memblock)
{
- pg_data_t *pgdat;
- struct zone *zone;
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;
int ret;
- pgdat = NODE_DATA(nid);
-
- zone = pgdat->node_zones +
- zone_for_memory(nid, start, size, ZONE_NORMAL, for_device);
- ret = __add_pages(nid, zone, start_pfn, nr_pages);
-
+ ret = __add_pages(nid, start_pfn, nr_pages, want_memblock);
if (ret)
printk("%s: Problem encountered in __add_pages() as ret=%d\n",
__func__, ret);
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 4068bde623dc..f5ec736100ee 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -411,13 +411,6 @@ pcibios_disable_device (struct pci_dev *dev)
acpi_pci_irq_disable(dev);
}
-resource_size_t
-pcibios_align_resource (void *data, const struct resource *res,
- resource_size_t size, resource_size_t align)
-{
- return res->start;
-}
-
/**
* ia64_pci_get_legacy_mem - generic legacy mem routine
* @bus: bus to get legacy memory base address for
diff --git a/arch/ia64/sn/kernel/iomv.c b/arch/ia64/sn/kernel/iomv.c
index c77ebdf98119..2b22a71663c1 100644
--- a/arch/ia64/sn/kernel/iomv.c
+++ b/arch/ia64/sn/kernel/iomv.c
@@ -63,7 +63,7 @@ EXPORT_SYMBOL(sn_io_addr);
/**
* __sn_mmiowb - I/O space memory barrier
*
- * See arch/ia64/include/asm/io.h and Documentation/DocBook/deviceiobook.tmpl
+ * See arch/ia64/include/asm/io.h and Documentation/driver-api/device-io.rst
* for details.
*
* On SN2, we wait for the PIO_WRITE_STATUS SHub register to clear.
diff --git a/arch/ia64/sn/pci/pcibr/pcibr_ate.c b/arch/ia64/sn/pci/pcibr/pcibr_ate.c
index 5bc34eac9e01..b67bb4cb73ff 100644
--- a/arch/ia64/sn/pci/pcibr/pcibr_ate.c
+++ b/arch/ia64/sn/pci/pcibr/pcibr_ate.c
@@ -140,7 +140,7 @@ static inline u64 __iomem *pcibr_ate_addr(struct pcibus_info *pcibus_info,
/*
* Update the ate.
*/
-void inline
+inline void
ate_write(struct pcibus_info *pcibus_info, int ate_index, int count,
volatile u64 ate)
{
diff --git a/arch/ia64/sn/pci/tioce_provider.c b/arch/ia64/sn/pci/tioce_provider.c
index 46d3df4b03a1..3bd9abc35485 100644
--- a/arch/ia64/sn/pci/tioce_provider.c
+++ b/arch/ia64/sn/pci/tioce_provider.c
@@ -52,7 +52,7 @@
* All registers defined in struct tioce will meet that criteria.
*/
-static void inline
+static inline void
tioce_mmr_war_pre(struct tioce_kernel *kern, void __iomem *mmr_addr)
{
u64 mmr_base;
@@ -78,7 +78,7 @@ tioce_mmr_war_pre(struct tioce_kernel *kern, void __iomem *mmr_addr)
}
}
-static void inline
+static inline void
tioce_mmr_war_post(struct tioce_kernel *kern, void __iomem *mmr_addr)
{
u64 mmr_base;
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index 95474460b367..0777f3a8a1f3 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -19,6 +19,7 @@ config M32R
select HAVE_DEBUG_STACKOVERFLOW
select CPU_NO_EFFICIENT_FFS
select DMA_NOOP_OPS
+ select ARCH_NO_COHERENT_DMA_MMAP if !MMU
config SBUS
bool
@@ -193,6 +194,10 @@ config TIMER_DIVIDE
int "Timer divider (integer)"
default "128"
+config CPU_BIG_ENDIAN
+ bool "Generate big endian code"
+ default n
+
config CPU_LITTLE_ENDIAN
bool "Generate little endian code"
default n
diff --git a/arch/m32r/configs/m32104ut_defconfig b/arch/m32r/configs/m32104ut_defconfig
index be30e094db71..4aa42acbd512 100644
--- a/arch/m32r/configs/m32104ut_defconfig
+++ b/arch/m32r/configs/m32104ut_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
@@ -40,7 +39,6 @@ CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
-CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_ECN=m
@@ -48,7 +46,6 @@ CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
@@ -106,7 +103,6 @@ CONFIG_SENSORS_SMSC47M1=m
CONFIG_SENSORS_W83781D=m
CONFIG_SENSORS_W83L785TS=m
CONFIG_SENSORS_W83627HF=m
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
diff --git a/arch/m32r/configs/m32700ut.smp_defconfig b/arch/m32r/configs/m32700ut.smp_defconfig
index a3d727ed6a16..41a0495b65df 100644
--- a/arch/m32r/configs/m32700ut.smp_defconfig
+++ b/arch/m32r/configs/m32700ut.smp_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_IKCONFIG=y
@@ -30,7 +29,6 @@ CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
# CONFIG_IPV6 is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=m
@@ -63,7 +61,6 @@ CONFIG_SERIAL_M32R_SIO_CONSOLE=y
CONFIG_SERIAL_M32R_PLDSIO=y
CONFIG_HW_RANDOM=y
CONFIG_DS1302=y
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_S1D13XXX=y
diff --git a/arch/m32r/configs/m32700ut.up_defconfig b/arch/m32r/configs/m32700ut.up_defconfig
index b8334163099d..20078a866f45 100644
--- a/arch/m32r/configs/m32700ut.up_defconfig
+++ b/arch/m32r/configs/m32700ut.up_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_IKCONFIG=y
@@ -29,7 +28,6 @@ CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
# CONFIG_IPV6 is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=m
@@ -62,7 +60,6 @@ CONFIG_SERIAL_M32R_SIO_CONSOLE=y
CONFIG_SERIAL_M32R_PLDSIO=y
CONFIG_HW_RANDOM=y
CONFIG_DS1302=y
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_S1D13XXX=y
diff --git a/arch/m32r/configs/mappi.nommu_defconfig b/arch/m32r/configs/mappi.nommu_defconfig
index 7c90ce2fc42b..4bf3820e054a 100644
--- a/arch/m32r/configs/mappi.nommu_defconfig
+++ b/arch/m32r/configs/mappi.nommu_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_IKCONFIG=y
CONFIG_LOG_BUF_SHIFT=14
@@ -39,7 +38,6 @@ CONFIG_NETDEVICES=y
# CONFIG_VT is not set
CONFIG_SERIAL_M32R_SIO_CONSOLE=y
CONFIG_HW_RANDOM=y
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_NFS_FS=y
diff --git a/arch/m32r/configs/mappi.smp_defconfig b/arch/m32r/configs/mappi.smp_defconfig
index 367d07cebcd3..f9ed7bdbf4de 100644
--- a/arch/m32r/configs/mappi.smp_defconfig
+++ b/arch/m32r/configs/mappi.smp_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
@@ -31,9 +30,7 @@ CONFIG_IP_PNP_DHCP=y
# CONFIG_IPV6 is not set
# CONFIG_STANDALONE is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_NBD=m
@@ -50,7 +47,6 @@ CONFIG_NETDEVICES=y
# CONFIG_VT is not set
CONFIG_SERIAL_M32R_SIO_CONSOLE=y
CONFIG_HW_RANDOM=y
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_ISO9660_FS=y
diff --git a/arch/m32r/configs/mappi.up_defconfig b/arch/m32r/configs/mappi.up_defconfig
index cb11384386ce..289ae7421e12 100644
--- a/arch/m32r/configs/mappi.up_defconfig
+++ b/arch/m32r/configs/mappi.up_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
@@ -29,9 +28,7 @@ CONFIG_IP_PNP_DHCP=y
# CONFIG_IPV6 is not set
# CONFIG_STANDALONE is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_NBD=m
@@ -48,7 +45,6 @@ CONFIG_NETDEVICES=y
# CONFIG_VT is not set
CONFIG_SERIAL_M32R_SIO_CONSOLE=y
CONFIG_HW_RANDOM=y
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_ISO9660_FS=y
diff --git a/arch/m32r/configs/mappi2.opsp_defconfig b/arch/m32r/configs/mappi2.opsp_defconfig
index 3bff779259b4..2852f6e7e246 100644
--- a/arch/m32r/configs/mappi2.opsp_defconfig
+++ b/arch/m32r/configs/mappi2.opsp_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_IKCONFIG=y
@@ -50,7 +49,6 @@ CONFIG_SMC91X=y
# CONFIG_SERIO_I8042 is not set
CONFIG_SERIAL_M32R_SIO_CONSOLE=y
CONFIG_HW_RANDOM=y
-CONFIG_VIDEO_OUTPUT_CONTROL=m
# CONFIG_VGA_CONSOLE is not set
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
diff --git a/arch/m32r/configs/mappi2.vdec2_defconfig b/arch/m32r/configs/mappi2.vdec2_defconfig
index 75246c9c1af8..8da4dbad8510 100644
--- a/arch/m32r/configs/mappi2.vdec2_defconfig
+++ b/arch/m32r/configs/mappi2.vdec2_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_IKCONFIG=y
@@ -49,7 +48,6 @@ CONFIG_SMC91X=y
# CONFIG_SERIO_I8042 is not set
CONFIG_SERIAL_M32R_SIO_CONSOLE=y
CONFIG_HW_RANDOM=y
-CONFIG_VIDEO_OUTPUT_CONTROL=m
# CONFIG_VGA_CONSOLE is not set
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
diff --git a/arch/m32r/configs/mappi3.smp_defconfig b/arch/m32r/configs/mappi3.smp_defconfig
index 27cefd41ac1f..5605b23e2faf 100644
--- a/arch/m32r/configs/mappi3.smp_defconfig
+++ b/arch/m32r/configs/mappi3.smp_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
@@ -29,9 +28,7 @@ CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
# CONFIG_IPV6 is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_NBD=m
@@ -50,7 +47,6 @@ CONFIG_SMC91X=y
# CONFIG_VT is not set
CONFIG_SERIAL_M32R_SIO_CONSOLE=y
CONFIG_HW_RANDOM=y
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_ISO9660_FS=y
diff --git a/arch/m32r/configs/oaks32r_defconfig b/arch/m32r/configs/oaks32r_defconfig
index 5087a510ca4f..5ccab127f6ad 100644
--- a/arch/m32r/configs/oaks32r_defconfig
+++ b/arch/m32r/configs/oaks32r_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -37,7 +36,6 @@ CONFIG_NETDEVICES=y
# CONFIG_VT is not set
CONFIG_SERIAL_M32R_SIO_CONSOLE=y
CONFIG_HW_RANDOM=y
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_EXT2_FS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
diff --git a/arch/m32r/configs/opsput_defconfig b/arch/m32r/configs/opsput_defconfig
index 50c6f525db20..3ce1d08355e5 100644
--- a/arch/m32r/configs/opsput_defconfig
+++ b/arch/m32r/configs/opsput_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_IKCONFIG=y
@@ -46,7 +45,6 @@ CONFIG_SERIAL_M32R_SIO_CONSOLE=y
CONFIG_SERIAL_M32R_PLDSIO=y
CONFIG_HW_RANDOM=y
CONFIG_DS1302=y
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_ISO9660_FS=m
diff --git a/arch/m32r/configs/usrv_defconfig b/arch/m32r/configs/usrv_defconfig
index a3cfaaedab60..cb8c051c3d46 100644
--- a/arch/m32r/configs/usrv_defconfig
+++ b/arch/m32r/configs/usrv_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -34,9 +33,6 @@ CONFIG_INET_ESP=y
CONFIG_INET_IPCOMP=y
# CONFIG_IPV6 is not set
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -62,7 +58,6 @@ CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
# CONFIG_SERIAL_M32R_SIO is not set
# CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_FS_XATTR is not set
diff --git a/arch/m32r/include/asm/Kbuild b/arch/m32r/include/asm/Kbuild
index c000ffac8586..7e11b125c35e 100644
--- a/arch/m32r/include/asm/Kbuild
+++ b/arch/m32r/include/asm/Kbuild
@@ -1,10 +1,9 @@
-
generic-y += clkdev.h
generic-y += current.h
generic-y += exec.h
generic-y += extable.h
generic-y += irq_work.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
generic-y += module.h
@@ -12,4 +11,3 @@ generic-y += preempt.h
generic-y += sections.h
generic-y += trace_clock.h
generic-y += word-at-a-time.h
-generic-y += kprobes.h
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
index c01d9f52d228..aff3ae8b62f7 100644
--- a/arch/m32r/include/asm/dma-mapping.h
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -8,8 +8,6 @@
#include <linux/dma-debug.h>
#include <linux/io.h>
-#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-
static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &dma_noop_ops;
diff --git a/arch/m32r/include/asm/flat.h b/arch/m32r/include/asm/flat.h
index 5d711c4688fb..dfcb0e4eb256 100644
--- a/arch/m32r/include/asm/flat.h
+++ b/arch/m32r/include/asm/flat.h
@@ -17,11 +17,6 @@
#define flat_set_persistent(relval, p) 0
#define flat_reloc_valid(reloc, size) \
(((reloc) - textlen_for_m32r_lo16_data) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
- m32r_flat_get_addr_from_rp(rp, relval, (text_len) )
-
-#define flat_put_addr_at_rp(rp, addr, relval) \
- m32r_flat_put_addr_at_rp(rp, addr, relval)
/* Convert a relocation entry into an address. */
static inline unsigned long
@@ -57,9 +52,9 @@ flat_get_relocate_addr (unsigned long relval)
static unsigned long textlen_for_m32r_lo16_data = 0;
-static inline unsigned long m32r_flat_get_addr_from_rp (unsigned long *rp,
- unsigned long relval,
- unsigned long textlen)
+static inline unsigned long m32r_flat_get_addr_from_rp (u32 *rp,
+ u32 relval,
+ u32 textlen)
{
unsigned int reloc = flat_m32r_get_reloc_type (relval);
textlen_for_m32r_lo16_data = 0;
@@ -100,9 +95,7 @@ static inline unsigned long m32r_flat_get_addr_from_rp (unsigned long *rp,
return ~0; /* bogus value */
}
-static inline void m32r_flat_put_addr_at_rp (unsigned long *rp,
- unsigned long addr,
- unsigned long relval)
+static inline int flat_put_addr_at_rp(u32 *rp, u32 addr, u32 relval)
{
unsigned int reloc = flat_m32r_get_reloc_type (relval);
if (reloc & 0xf0) {
@@ -140,6 +133,11 @@ static inline void m32r_flat_put_addr_at_rp (unsigned long *rp,
break;
}
}
+ return 0;
}
+// kludge - text_len is a local variable in the only user.
+#define flat_get_addr_from_rp(rp, relval, flags, addr, persistent) \
+ (m32r_flat_get_addr_from_rp(rp, relval, text_len), 0)
+
#endif /* __ASM_M32R_FLAT_H */
diff --git a/arch/m32r/include/asm/processor.h b/arch/m32r/include/asm/processor.h
index 657874eeeccc..c70fa9ac7169 100644
--- a/arch/m32r/include/asm/processor.h
+++ b/arch/m32r/include/asm/processor.h
@@ -118,14 +118,6 @@ struct mm_struct;
/* Free all resources held by a thread. */
extern void release_thread(struct task_struct *);
-/* Copy and release all segment info associated with a VM */
-extern void copy_segments(struct task_struct *p, struct mm_struct * mm);
-extern void release_segments(struct mm_struct * mm);
-
-/* Copy and release all segment info associated with a VM */
-#define copy_segments(p, mm) do { } while (0)
-#define release_segments(mm) do { } while (0)
-
unsigned long get_wchan(struct task_struct *p);
#define KSTK_EIP(tsk) ((tsk)->thread.lr)
#define KSTK_ESP(tsk) ((tsk)->thread.sp)
diff --git a/arch/m32r/include/asm/spinlock.h b/arch/m32r/include/asm/spinlock.h
index 323c7fc953cd..a56825592b90 100644
--- a/arch/m32r/include/asm/spinlock.h
+++ b/arch/m32r/include/asm/spinlock.h
@@ -30,11 +30,6 @@
#define arch_spin_is_locked(x) (*(volatile int *)(&(x)->slock) <= 0)
#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- smp_cond_load_acquire(&lock->slock, VAL > 0);
-}
-
/**
* arch_spin_trylock - Try spin lock and return a result
* @lock: Pointer to the lock variable
diff --git a/arch/m32r/include/asm/uaccess.h b/arch/m32r/include/asm/uaccess.h
index 07be349c00ad..496c4716dbc8 100644
--- a/arch/m32r/include/asm/uaccess.h
+++ b/arch/m32r/include/asm/uaccess.h
@@ -482,8 +482,6 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n)
long __must_check strncpy_from_user(char *dst, const char __user *src,
long count);
-long __must_check __strncpy_from_user(char *dst,
- const char __user *src, long count);
/**
* __clear_user: - Zero a block of memory in user space, with less checking.
@@ -511,22 +509,6 @@ unsigned long __clear_user(void __user *mem, unsigned long len);
*/
unsigned long clear_user(void __user *mem, unsigned long len);
-/**
- * strlen_user: - Get the size of a string in user space.
- * @str: The string to measure.
- *
- * Context: User context only. This function may sleep if pagefaults are
- * enabled.
- *
- * Get the size of a NUL-terminated string in user space.
- *
- * Returns the size of the string INCLUDING the terminating NUL.
- * On exception, returns 0.
- *
- * If there is a limit on the length of a valid string, you may wish to
- * consider using strnlen_user() instead.
- */
-#define strlen_user(str) strnlen_user(str, ~0UL >> 1)
long strnlen_user(const char __user *str, long n);
#endif /* _ASM_M32R_UACCESS_H */
diff --git a/arch/m32r/include/asm/unistd.h b/arch/m32r/include/asm/unistd.h
index 59db80193454..de602533a3bd 100644
--- a/arch/m32r/include/asm/unistd.h
+++ b/arch/m32r/include/asm/unistd.h
@@ -18,7 +18,6 @@
#define __ARCH_WANT_SYS_FADVISE64
#define __ARCH_WANT_SYS_GETPGRP
#define __ARCH_WANT_SYS_LLSEEK
-#define __ARCH_WANT_SYS_OLD_GETRLIMIT /*will be unused*/
#define __ARCH_WANT_SYS_OLDUMOUNT
#define __ARCH_WANT_SYS_CLONE
#define __ARCH_WANT_SYS_FORK
diff --git a/arch/m32r/include/uapi/asm/Kbuild b/arch/m32r/include/uapi/asm/Kbuild
index b15bf6bc0e94..1c44d3b3eba0 100644
--- a/arch/m32r/include/uapi/asm/Kbuild
+++ b/arch/m32r/include/uapi/asm/Kbuild
@@ -1,2 +1,5 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+
+generic-y += kvm_para.h
+generic-y += siginfo.h
diff --git a/arch/m32r/include/uapi/asm/siginfo.h b/arch/m32r/include/uapi/asm/siginfo.h
deleted file mode 100644
index 7d9cd9ebfd0e..000000000000
--- a/arch/m32r/include/uapi/asm/siginfo.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _M32R_SIGINFO_H
-#define _M32R_SIGINFO_H
-
-#include <asm-generic/siginfo.h>
-
-#endif /* _M32R_SIGINFO_H */
diff --git a/arch/m32r/include/uapi/asm/socket.h b/arch/m32r/include/uapi/asm/socket.h
index ae6548d29a18..e268e51a38d1 100644
--- a/arch/m32r/include/uapi/asm/socket.h
+++ b/arch/m32r/include/uapi/asm/socket.h
@@ -98,4 +98,10 @@
#define SO_COOKIE 57
+#define SCM_TIMESTAMPING_PKTINFO 58
+
+#define SO_PEERGROUPS 59
+
+#define SO_ZEROCOPY 60
+
#endif /* _ASM_M32R_SOCKET_H */
diff --git a/arch/m32r/kernel/m32r_ksyms.c b/arch/m32r/kernel/m32r_ksyms.c
index a4d43b5cc102..68da6b800453 100644
--- a/arch/m32r/kernel/m32r_ksyms.c
+++ b/arch/m32r/kernel/m32r_ksyms.c
@@ -23,7 +23,6 @@ EXPORT_SYMBOL(__ioremap);
EXPORT_SYMBOL(iounmap);
EXPORT_SYMBOL(strncpy_from_user);
-EXPORT_SYMBOL(__strncpy_from_user);
EXPORT_SYMBOL(clear_user);
EXPORT_SYMBOL(__clear_user);
EXPORT_SYMBOL(strnlen_user);
diff --git a/arch/m32r/kernel/traps.c b/arch/m32r/kernel/traps.c
index 647dd94a0c39..72b96f282689 100644
--- a/arch/m32r/kernel/traps.c
+++ b/arch/m32r/kernel/traps.c
@@ -114,6 +114,15 @@ static void set_eit_vector_entries(void)
_flush_cache_copyback_all();
}
+void abort(void)
+{
+ BUG();
+
+ /* if that doesn't kill us, halt */
+ panic("Oops failed to kill thread");
+}
+EXPORT_SYMBOL(abort);
+
void __init trap_init(void)
{
set_eit_vector_entries();
diff --git a/arch/m32r/lib/usercopy.c b/arch/m32r/lib/usercopy.c
index b3ef2c899f96..b723b11107c7 100644
--- a/arch/m32r/lib/usercopy.c
+++ b/arch/m32r/lib/usercopy.c
@@ -89,14 +89,6 @@ do { \
#endif /* CONFIG_ISA_DUAL_ISSUE */
long
-__strncpy_from_user(char *dst, const char __user *src, long count)
-{
- long res;
- __do_strncpy_from_user(dst, src, count, res);
- return res;
-}
-
-long
strncpy_from_user(char *dst, const char __user *src, long count)
{
long res = -EFAULT;
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index d140206d5d29..353d90487c2b 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -2,6 +2,7 @@ config M68K
bool
default y
select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
+ select ARCH_NO_COHERENT_DMA_MMAP if !MMU
select HAVE_IDE
select HAVE_AOUT if MMU
select HAVE_DEBUG_BUGVERBOSE
@@ -23,6 +24,9 @@ config M68K
select OLD_SIGSUSPEND3
select OLD_SIGACTION
+config CPU_BIG_ENDIAN
+ def_bool y
+
config RWSEM_GENERIC_SPINLOCK
bool
default y
diff --git a/arch/m68k/coldfire/clk.c b/arch/m68k/coldfire/clk.c
index 1e3c7e9193d1..856069a3196d 100644
--- a/arch/m68k/coldfire/clk.c
+++ b/arch/m68k/coldfire/clk.c
@@ -121,6 +121,9 @@ EXPORT_SYMBOL(clk_put);
unsigned long clk_get_rate(struct clk *clk)
{
+ if (!clk)
+ return 0;
+
return clk->rate;
}
EXPORT_SYMBOL(clk_get_rate);
diff --git a/arch/m68k/coldfire/intc-simr.c b/arch/m68k/coldfire/intc-simr.c
index 7cf2c156f72d..15c4b7a6e38f 100644
--- a/arch/m68k/coldfire/intc-simr.c
+++ b/arch/m68k/coldfire/intc-simr.c
@@ -35,7 +35,7 @@
#define EINT7 67 /* EDGE Port interrupt 7 */
static unsigned int irqebitmap[] = { 0, 1, 4, 7 };
-static unsigned int inline irq2ebit(unsigned int irq)
+static inline unsigned int irq2ebit(unsigned int irq)
{
return irqebitmap[irq - EINT0];
}
@@ -51,7 +51,7 @@ static unsigned int inline irq2ebit(unsigned int irq)
#define EINT1 65 /* EDGE Port interrupt 1 */
#define EINT7 71 /* EDGE Port interrupt 7 */
-static unsigned int inline irq2ebit(unsigned int irq)
+static inline unsigned int irq2ebit(unsigned int irq)
{
return irq - EINT0;
}
diff --git a/arch/m68k/coldfire/m5441x.c b/arch/m68k/coldfire/m5441x.c
index dc589b039b62..04fd7fde9fb3 100644
--- a/arch/m68k/coldfire/m5441x.c
+++ b/arch/m68k/coldfire/m5441x.c
@@ -222,40 +222,3 @@ void __init config_BSP(char *commandp, int size)
m5441x_uarts_init();
m5441x_fec_init();
}
-
-
-#if IS_ENABLED(CONFIG_RTC_DRV_M5441x)
-static struct resource m5441x_rtc_resources[] = {
- {
- .start = MCFRTC_BASE,
- .end = MCFRTC_BASE + MCFRTC_SIZE - 1,
- .flags = IORESOURCE_MEM,
- },
- {
- .start = MCF_IRQ_RTC,
- .end = MCF_IRQ_RTC,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static struct platform_device m5441x_rtc = {
- .name = "mcfrtc",
- .id = 0,
- .resource = m5441x_rtc_resources,
- .num_resources = ARRAY_SIZE(m5441x_rtc_resources),
-};
-#endif
-
-static struct platform_device *m5441x_devices[] __initdata = {
-#if IS_ENABLED(CONFIG_RTC_DRV_M5441x)
- &m5441x_rtc,
-#endif
-};
-
-static int __init init_BSP(void)
-{
- platform_add_devices(m5441x_devices, ARRAY_SIZE(m5441x_devices));
- return 0;
-}
-
-arch_initcall(init_BSP);
diff --git a/arch/m68k/coldfire/pci.c b/arch/m68k/coldfire/pci.c
index 6a640be48568..3097fa2ca746 100644
--- a/arch/m68k/coldfire/pci.c
+++ b/arch/m68k/coldfire/pci.c
@@ -243,6 +243,13 @@ static struct resource mcf_pci_io = {
.flags = IORESOURCE_IO,
};
+static struct resource busn_resource = {
+ .name = "PCI busn",
+ .start = 0,
+ .end = 255,
+ .flags = IORESOURCE_BUS,
+};
+
/*
* Interrupt mapping and setting.
*/
@@ -258,6 +265,13 @@ static int mcf_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
static int __init mcf_pci_init(void)
{
+ struct pci_host_bridge *bridge;
+ int ret;
+
+ bridge = pci_alloc_host_bridge(0);
+ if (!bridge)
+ return -ENOMEM;
+
pr_info("ColdFire: PCI bus initialization...\n");
/* Reset the external PCI bus */
@@ -312,14 +326,28 @@ static int __init mcf_pci_init(void)
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(msecs_to_jiffies(200));
- rootbus = pci_scan_bus(0, &mcf_pci_ops, NULL);
- if (!rootbus)
- return -ENODEV;
+
+ pci_add_resource(&bridge->windows, &ioport_resource);
+ pci_add_resource(&bridge->windows, &iomem_resource);
+ pci_add_resource(&bridge->windows, &busn_resource);
+ bridge->dev.parent = NULL;
+ bridge->sysdata = NULL;
+ bridge->busnr = 0;
+ bridge->ops = &mcf_pci_ops;
+ bridge->swizzle_irq = pci_common_swizzle;
+ bridge->map_irq = mcf_pci_map_irq;
+
+ ret = pci_scan_root_bus_bridge(bridge);
+ if (ret) {
+ pci_free_host_bridge(bridge);
+ return ret;
+ }
+
+ rootbus = bridge->bus;
rootbus->resource[0] = &mcf_pci_io;
rootbus->resource[1] = &mcf_pci_mem;
- pci_fixup_irqs(pci_common_swizzle, mcf_pci_map_irq);
pci_bus_size_bridges(rootbus);
pci_bus_assign_resources(rootbus);
pci_bus_add_devices(rootbus);
diff --git a/arch/m68k/configs/amiga_defconfig b/arch/m68k/configs/amiga_defconfig
index 531cb9eb3319..54191f6fc715 100644
--- a/arch/m68k/configs/amiga_defconfig
+++ b/arch/m68k/configs/amiga_defconfig
@@ -26,6 +26,8 @@ CONFIG_SUN_PARTITION=y
CONFIG_SYSV68_PARTITION=y
CONFIG_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_DEADLINE=m
+CONFIG_MQ_IOSCHED_KYBER=m
+CONFIG_IOSCHED_BFQ=m
CONFIG_KEXEC=y
CONFIG_BOOTINFO_PROC=y
CONFIG_M68020=y
@@ -47,6 +49,7 @@ CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=m
+CONFIG_TLS=m
CONFIG_XFRM_MIGRATE=y
CONFIG_NET_KEY=y
CONFIG_INET=y
@@ -349,7 +352,6 @@ CONFIG_SCSI_A4000T=y
CONFIG_SCSI_ZORRO7XX=y
CONFIG_MD=y
CONFIG_MD_LINEAR=m
-CONFIG_MD_RAID0=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
@@ -361,6 +363,7 @@ CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_UEVENT=y
CONFIG_DM_LOG_WRITES=m
+CONFIG_DM_INTEGRITY=m
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
@@ -414,6 +417,7 @@ CONFIG_ZORRO8390=y
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_NET_VENDOR_SYNOPSYS is not set
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
@@ -462,8 +466,10 @@ CONFIG_HID=m
CONFIG_HIDRAW=y
CONFIG_UHID=m
# CONFIG_HID_GENERIC is not set
+# CONFIG_HID_ITE is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
+# CONFIG_RTC_NVMEM is not set
CONFIG_RTC_DRV_MSM6242=m
CONFIG_RTC_DRV_RP5C01=m
# CONFIG_IOMMU_SUPPORT is not set
@@ -474,7 +480,6 @@ CONFIG_SERIAL_CONSOLE=y
CONFIG_EXT4_FS=y
CONFIG_REISERFS_FS=m
CONFIG_JFS_FS=m
-CONFIG_XFS_FS=m
CONFIG_OCFS2_FS=m
# CONFIG_OCFS2_DEBUG_MASKLOG is not set
CONFIG_FS_ENCRYPTION=m
@@ -572,6 +577,8 @@ CONFIG_DLM=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_TEST_LIST_SORT=m
+CONFIG_TEST_SORT=m
CONFIG_ATOMIC64_SELFTEST=m
CONFIG_ASYNC_RAID6_TEST=m
CONFIG_TEST_HEXDUMP=m
@@ -582,14 +589,16 @@ CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_HASH=m
-CONFIG_TEST_LKM=m
CONFIG_TEST_USER_COPY=m
CONFIG_TEST_BPF=m
CONFIG_TEST_FIRMWARE=m
+CONFIG_TEST_SYSCTL=m
CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
+CONFIG_TEST_KMOD=m
CONFIG_EARLY_PRINTK=y
CONFIG_ENCRYPTED_KEYS=m
+CONFIG_HARDENED_USERCOPY=y
CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
diff --git a/arch/m68k/configs/apollo_defconfig b/arch/m68k/configs/apollo_defconfig
index ca91d39555da..fb4663904428 100644
--- a/arch/m68k/configs/apollo_defconfig
+++ b/arch/m68k/configs/apollo_defconfig
@@ -27,6 +27,8 @@ CONFIG_SUN_PARTITION=y
CONFIG_SYSV68_PARTITION=y
CONFIG_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_DEADLINE=m
+CONFIG_MQ_IOSCHED_KYBER=m
+CONFIG_IOSCHED_BFQ=m
CONFIG_KEXEC=y
CONFIG_BOOTINFO_PROC=y
CONFIG_M68020=y
@@ -45,6 +47,7 @@ CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=m
+CONFIG_TLS=m
CONFIG_XFRM_MIGRATE=y
CONFIG_NET_KEY=y
CONFIG_INET=y
@@ -331,7 +334,6 @@ CONFIG_ISCSI_TCP=m
CONFIG_ISCSI_BOOT_SYSFS=m
CONFIG_MD=y
CONFIG_MD_LINEAR=m
-CONFIG_MD_RAID0=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
@@ -343,6 +345,7 @@ CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_UEVENT=y
CONFIG_DM_LOG_WRITES=m
+CONFIG_DM_INTEGRITY=m
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
@@ -388,6 +391,7 @@ CONFIG_VETH=m
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_NET_VENDOR_SYNOPSYS is not set
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
@@ -424,8 +428,10 @@ CONFIG_HID=m
CONFIG_HIDRAW=y
CONFIG_UHID=m
# CONFIG_HID_GENERIC is not set
+# CONFIG_HID_ITE is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
+# CONFIG_RTC_NVMEM is not set
CONFIG_RTC_DRV_GENERIC=m
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_HEARTBEAT=y
@@ -433,7 +439,6 @@ CONFIG_PROC_HARDWARE=y
CONFIG_EXT4_FS=y
CONFIG_REISERFS_FS=m
CONFIG_JFS_FS=m
-CONFIG_XFS_FS=m
CONFIG_OCFS2_FS=m
# CONFIG_OCFS2_DEBUG_MASKLOG is not set
CONFIG_FS_ENCRYPTION=m
@@ -531,6 +536,8 @@ CONFIG_DLM=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_TEST_LIST_SORT=m
+CONFIG_TEST_SORT=m
CONFIG_ATOMIC64_SELFTEST=m
CONFIG_ASYNC_RAID6_TEST=m
CONFIG_TEST_HEXDUMP=m
@@ -541,14 +548,16 @@ CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_HASH=m
-CONFIG_TEST_LKM=m
CONFIG_TEST_USER_COPY=m
CONFIG_TEST_BPF=m
CONFIG_TEST_FIRMWARE=m
+CONFIG_TEST_SYSCTL=m
CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
+CONFIG_TEST_KMOD=m
CONFIG_EARLY_PRINTK=y
CONFIG_ENCRYPTED_KEYS=m
+CONFIG_HARDENED_USERCOPY=y
CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
diff --git a/arch/m68k/configs/atari_defconfig b/arch/m68k/configs/atari_defconfig
index 23a3d8a691e2..4ab393e86e52 100644
--- a/arch/m68k/configs/atari_defconfig
+++ b/arch/m68k/configs/atari_defconfig
@@ -26,6 +26,8 @@ CONFIG_SUN_PARTITION=y
CONFIG_SYSV68_PARTITION=y
CONFIG_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_DEADLINE=m
+CONFIG_MQ_IOSCHED_KYBER=m
+CONFIG_IOSCHED_BFQ=m
CONFIG_KEXEC=y
CONFIG_BOOTINFO_PROC=y
CONFIG_M68020=y
@@ -45,6 +47,7 @@ CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=m
+CONFIG_TLS=m
CONFIG_XFRM_MIGRATE=y
CONFIG_NET_KEY=y
CONFIG_INET=y
@@ -340,7 +343,6 @@ CONFIG_ISCSI_BOOT_SYSFS=m
CONFIG_ATARI_SCSI=y
CONFIG_MD=y
CONFIG_MD_LINEAR=m
-CONFIG_MD_RAID0=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
@@ -352,6 +354,7 @@ CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_UEVENT=y
CONFIG_DM_LOG_WRITES=m
+CONFIG_DM_INTEGRITY=m
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
@@ -399,6 +402,7 @@ CONFIG_SMC91X=y
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_NET_VENDOR_SYNOPSYS is not set
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
@@ -439,7 +443,10 @@ CONFIG_DMASOUND_ATARI=m
CONFIG_HID=m
CONFIG_HIDRAW=y
CONFIG_UHID=m
+# CONFIG_HID_GENERIC is not set
+# CONFIG_HID_ITE is not set
CONFIG_RTC_CLASS=y
+# CONFIG_RTC_NVMEM is not set
CONFIG_RTC_DRV_GENERIC=m
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_HEARTBEAT=y
@@ -454,7 +461,6 @@ CONFIG_ATARI_DSP56K=m
CONFIG_EXT4_FS=y
CONFIG_REISERFS_FS=m
CONFIG_JFS_FS=m
-CONFIG_XFS_FS=m
CONFIG_OCFS2_FS=m
# CONFIG_OCFS2_DEBUG_MASKLOG is not set
CONFIG_FS_ENCRYPTION=m
@@ -552,6 +558,8 @@ CONFIG_DLM=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_TEST_LIST_SORT=m
+CONFIG_TEST_SORT=m
CONFIG_ATOMIC64_SELFTEST=m
CONFIG_ASYNC_RAID6_TEST=m
CONFIG_TEST_HEXDUMP=m
@@ -562,14 +570,16 @@ CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_HASH=m
-CONFIG_TEST_LKM=m
CONFIG_TEST_USER_COPY=m
CONFIG_TEST_BPF=m
CONFIG_TEST_FIRMWARE=m
+CONFIG_TEST_SYSCTL=m
CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
+CONFIG_TEST_KMOD=m
CONFIG_EARLY_PRINTK=y
CONFIG_ENCRYPTED_KEYS=m
+CONFIG_HARDENED_USERCOPY=y
CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
diff --git a/arch/m68k/configs/bvme6000_defconfig b/arch/m68k/configs/bvme6000_defconfig
index 95deb95140fe..1dd8d697545b 100644
--- a/arch/m68k/configs/bvme6000_defconfig
+++ b/arch/m68k/configs/bvme6000_defconfig
@@ -26,6 +26,8 @@ CONFIG_SUN_PARTITION=y
# CONFIG_EFI_PARTITION is not set
CONFIG_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_DEADLINE=m
+CONFIG_MQ_IOSCHED_KYBER=m
+CONFIG_IOSCHED_BFQ=m
CONFIG_KEXEC=y
CONFIG_BOOTINFO_PROC=y
CONFIG_M68040=y
@@ -43,6 +45,7 @@ CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=m
+CONFIG_TLS=m
CONFIG_XFRM_MIGRATE=y
CONFIG_NET_KEY=y
CONFIG_INET=y
@@ -330,7 +333,6 @@ CONFIG_ISCSI_BOOT_SYSFS=m
CONFIG_BVME6000_SCSI=y
CONFIG_MD=y
CONFIG_MD_LINEAR=m
-CONFIG_MD_RAID0=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
@@ -342,6 +344,7 @@ CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_UEVENT=y
CONFIG_DM_LOG_WRITES=m
+CONFIG_DM_INTEGRITY=m
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
@@ -387,6 +390,7 @@ CONFIG_BVME6000_NET=y
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_NET_VENDOR_SYNOPSYS is not set
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
@@ -417,15 +421,16 @@ CONFIG_HID=m
CONFIG_HIDRAW=y
CONFIG_UHID=m
# CONFIG_HID_GENERIC is not set
+# CONFIG_HID_ITE is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
+# CONFIG_RTC_NVMEM is not set
CONFIG_RTC_DRV_GENERIC=m
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_PROC_HARDWARE=y
CONFIG_EXT4_FS=y
CONFIG_REISERFS_FS=m
CONFIG_JFS_FS=m
-CONFIG_XFS_FS=m
CONFIG_OCFS2_FS=m
# CONFIG_OCFS2_DEBUG_MASKLOG is not set
CONFIG_FS_ENCRYPTION=m
@@ -523,6 +528,8 @@ CONFIG_DLM=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_TEST_LIST_SORT=m
+CONFIG_TEST_SORT=m
CONFIG_ATOMIC64_SELFTEST=m
CONFIG_ASYNC_RAID6_TEST=m
CONFIG_TEST_HEXDUMP=m
@@ -533,14 +540,16 @@ CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_HASH=m
-CONFIG_TEST_LKM=m
CONFIG_TEST_USER_COPY=m
CONFIG_TEST_BPF=m
CONFIG_TEST_FIRMWARE=m
+CONFIG_TEST_SYSCTL=m
CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
+CONFIG_TEST_KMOD=m
CONFIG_EARLY_PRINTK=y
CONFIG_ENCRYPTED_KEYS=m
+CONFIG_HARDENED_USERCOPY=y
CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
diff --git a/arch/m68k/configs/hp300_defconfig b/arch/m68k/configs/hp300_defconfig
index afae6958db2d..02b39f50076e 100644
--- a/arch/m68k/configs/hp300_defconfig
+++ b/arch/m68k/configs/hp300_defconfig
@@ -27,6 +27,8 @@ CONFIG_SUN_PARTITION=y
CONFIG_SYSV68_PARTITION=y
CONFIG_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_DEADLINE=m
+CONFIG_MQ_IOSCHED_KYBER=m
+CONFIG_IOSCHED_BFQ=m
CONFIG_KEXEC=y
CONFIG_BOOTINFO_PROC=y
CONFIG_M68020=y
@@ -45,6 +47,7 @@ CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=m
+CONFIG_TLS=m
CONFIG_XFRM_MIGRATE=y
CONFIG_NET_KEY=y
CONFIG_INET=y
@@ -331,7 +334,6 @@ CONFIG_ISCSI_TCP=m
CONFIG_ISCSI_BOOT_SYSFS=m
CONFIG_MD=y
CONFIG_MD_LINEAR=m
-CONFIG_MD_RAID0=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
@@ -343,6 +345,7 @@ CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_UEVENT=y
CONFIG_DM_LOG_WRITES=m
+CONFIG_DM_INTEGRITY=m
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
@@ -389,6 +392,7 @@ CONFIG_HPLANCE=y
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_NET_VENDOR_SYNOPSYS is not set
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
@@ -427,15 +431,16 @@ CONFIG_HID=m
CONFIG_HIDRAW=y
CONFIG_UHID=m
# CONFIG_HID_GENERIC is not set
+# CONFIG_HID_ITE is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
+# CONFIG_RTC_NVMEM is not set
CONFIG_RTC_DRV_GENERIC=m
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_PROC_HARDWARE=y
CONFIG_EXT4_FS=y
CONFIG_REISERFS_FS=m
CONFIG_JFS_FS=m
-CONFIG_XFS_FS=m
CONFIG_OCFS2_FS=m
# CONFIG_OCFS2_DEBUG_MASKLOG is not set
CONFIG_FS_ENCRYPTION=m
@@ -533,6 +538,8 @@ CONFIG_DLM=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_TEST_LIST_SORT=m
+CONFIG_TEST_SORT=m
CONFIG_ATOMIC64_SELFTEST=m
CONFIG_ASYNC_RAID6_TEST=m
CONFIG_TEST_HEXDUMP=m
@@ -543,14 +550,16 @@ CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_HASH=m
-CONFIG_TEST_LKM=m
CONFIG_TEST_USER_COPY=m
CONFIG_TEST_BPF=m
CONFIG_TEST_FIRMWARE=m
+CONFIG_TEST_SYSCTL=m
CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
+CONFIG_TEST_KMOD=m
CONFIG_EARLY_PRINTK=y
CONFIG_ENCRYPTED_KEYS=m
+CONFIG_HARDENED_USERCOPY=y
CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
diff --git a/arch/m68k/configs/m5208evb_defconfig b/arch/m68k/configs/m5208evb_defconfig
index 4c7b7938d53a..a3102ff7e5ed 100644
--- a/arch/m68k/configs/m5208evb_defconfig
+++ b/arch/m68k/configs/m5208evb_defconfig
@@ -26,7 +26,6 @@ CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_FW_LOADER is not set
diff --git a/arch/m68k/configs/m5249evb_defconfig b/arch/m68k/configs/m5249evb_defconfig
index a782f368650f..f7bb9ed3efa8 100644
--- a/arch/m68k/configs/m5249evb_defconfig
+++ b/arch/m68k/configs/m5249evb_defconfig
@@ -27,7 +27,6 @@ CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_FW_LOADER is not set
diff --git a/arch/m68k/configs/m5272c3_defconfig b/arch/m68k/configs/m5272c3_defconfig
index 6f5fb92f5cbf..1e679f6a400f 100644
--- a/arch/m68k/configs/m5272c3_defconfig
+++ b/arch/m68k/configs/m5272c3_defconfig
@@ -27,7 +27,6 @@ CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_FW_LOADER is not set
diff --git a/arch/m68k/configs/m5275evb_defconfig b/arch/m68k/configs/m5275evb_defconfig
index b5d7cd1ce856..d2987b40423e 100644
--- a/arch/m68k/configs/m5275evb_defconfig
+++ b/arch/m68k/configs/m5275evb_defconfig
@@ -27,7 +27,6 @@ CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_FW_LOADER is not set
diff --git a/arch/m68k/configs/m5307c3_defconfig b/arch/m68k/configs/m5307c3_defconfig
index 1b4c09461c40..97a78c99eeee 100644
--- a/arch/m68k/configs/m5307c3_defconfig
+++ b/arch/m68k/configs/m5307c3_defconfig
@@ -27,7 +27,6 @@ CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_FW_LOADER is not set
diff --git a/arch/m68k/configs/m5407c3_defconfig b/arch/m68k/configs/m5407c3_defconfig
index 275ad543d4bc..766a97f39a3a 100644
--- a/arch/m68k/configs/m5407c3_defconfig
+++ b/arch/m68k/configs/m5407c3_defconfig
@@ -28,7 +28,6 @@ CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_FW_LOADER is not set
diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig
index b010734729a7..044dcb2bf8fb 100644
--- a/arch/m68k/configs/mac_defconfig
+++ b/arch/m68k/configs/mac_defconfig
@@ -26,6 +26,8 @@ CONFIG_SUN_PARTITION=y
CONFIG_SYSV68_PARTITION=y
CONFIG_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_DEADLINE=m
+CONFIG_MQ_IOSCHED_KYBER=m
+CONFIG_IOSCHED_BFQ=m
CONFIG_KEXEC=y
CONFIG_BOOTINFO_PROC=y
CONFIG_M68020=y
@@ -44,6 +46,7 @@ CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=m
+CONFIG_TLS=m
CONFIG_XFRM_MIGRATE=y
CONFIG_NET_KEY=y
CONFIG_INET=y
@@ -340,7 +343,6 @@ CONFIG_MAC_SCSI=y
CONFIG_SCSI_MAC_ESP=y
CONFIG_MD=y
CONFIG_MD_LINEAR=m
-CONFIG_MD_RAID0=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
@@ -352,6 +354,7 @@ CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_UEVENT=y
CONFIG_DM_LOG_WRITES=m
+CONFIG_DM_INTEGRITY=m
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
@@ -408,6 +411,7 @@ CONFIG_MAC8390=y
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_NET_VENDOR_SYNOPSYS is not set
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
@@ -449,15 +453,16 @@ CONFIG_HID=m
CONFIG_HIDRAW=y
CONFIG_UHID=m
# CONFIG_HID_GENERIC is not set
+# CONFIG_HID_ITE is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
+# CONFIG_RTC_NVMEM is not set
CONFIG_RTC_DRV_GENERIC=m
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_PROC_HARDWARE=y
CONFIG_EXT4_FS=y
CONFIG_REISERFS_FS=m
CONFIG_JFS_FS=m
-CONFIG_XFS_FS=m
CONFIG_OCFS2_FS=m
# CONFIG_OCFS2_DEBUG_MASKLOG is not set
CONFIG_FS_ENCRYPTION=m
@@ -555,6 +560,8 @@ CONFIG_DLM=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_TEST_LIST_SORT=m
+CONFIG_TEST_SORT=m
CONFIG_ATOMIC64_SELFTEST=m
CONFIG_ASYNC_RAID6_TEST=m
CONFIG_TEST_HEXDUMP=m
@@ -565,14 +572,16 @@ CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_HASH=m
-CONFIG_TEST_LKM=m
CONFIG_TEST_USER_COPY=m
CONFIG_TEST_BPF=m
CONFIG_TEST_FIRMWARE=m
+CONFIG_TEST_SYSCTL=m
CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
+CONFIG_TEST_KMOD=m
CONFIG_EARLY_PRINTK=y
CONFIG_ENCRYPTED_KEYS=m
+CONFIG_HARDENED_USERCOPY=y
CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
diff --git a/arch/m68k/configs/multi_defconfig b/arch/m68k/configs/multi_defconfig
index 0e414549b235..3ad04682077a 100644
--- a/arch/m68k/configs/multi_defconfig
+++ b/arch/m68k/configs/multi_defconfig
@@ -22,6 +22,8 @@ CONFIG_UNIXWARE_DISKLABEL=y
# CONFIG_EFI_PARTITION is not set
CONFIG_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_DEADLINE=m
+CONFIG_MQ_IOSCHED_KYBER=m
+CONFIG_IOSCHED_BFQ=m
CONFIG_KEXEC=y
CONFIG_BOOTINFO_PROC=y
CONFIG_M68020=y
@@ -54,6 +56,7 @@ CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=m
+CONFIG_TLS=m
CONFIG_XFRM_MIGRATE=y
CONFIG_NET_KEY=y
CONFIG_INET=y
@@ -373,7 +376,6 @@ CONFIG_BVME6000_SCSI=y
CONFIG_SUN3X_ESP=y
CONFIG_MD=y
CONFIG_MD_LINEAR=m
-CONFIG_MD_RAID0=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
@@ -385,6 +387,7 @@ CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_UEVENT=y
CONFIG_DM_LOG_WRITES=m
+CONFIG_DM_INTEGRITY=m
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
@@ -454,6 +457,7 @@ CONFIG_SMC91X=y
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_NET_VENDOR_SYNOPSYS is not set
CONFIG_PLIP=m
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
@@ -517,8 +521,10 @@ CONFIG_HID=m
CONFIG_HIDRAW=y
CONFIG_UHID=m
# CONFIG_HID_GENERIC is not set
+# CONFIG_HID_ITE is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
+# CONFIG_RTC_NVMEM is not set
CONFIG_RTC_DRV_MSM6242=m
CONFIG_RTC_DRV_RP5C01=m
CONFIG_RTC_DRV_GENERIC=m
@@ -537,7 +543,6 @@ CONFIG_SERIAL_CONSOLE=y
CONFIG_EXT4_FS=y
CONFIG_REISERFS_FS=m
CONFIG_JFS_FS=m
-CONFIG_XFS_FS=m
CONFIG_OCFS2_FS=m
# CONFIG_OCFS2_DEBUG_MASKLOG is not set
CONFIG_FS_ENCRYPTION=m
@@ -635,6 +640,8 @@ CONFIG_DLM=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_TEST_LIST_SORT=m
+CONFIG_TEST_SORT=m
CONFIG_ATOMIC64_SELFTEST=m
CONFIG_ASYNC_RAID6_TEST=m
CONFIG_TEST_HEXDUMP=m
@@ -645,14 +652,16 @@ CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_HASH=m
-CONFIG_TEST_LKM=m
CONFIG_TEST_USER_COPY=m
CONFIG_TEST_BPF=m
CONFIG_TEST_FIRMWARE=m
+CONFIG_TEST_SYSCTL=m
CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
+CONFIG_TEST_KMOD=m
CONFIG_EARLY_PRINTK=y
CONFIG_ENCRYPTED_KEYS=m
+CONFIG_HARDENED_USERCOPY=y
CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
diff --git a/arch/m68k/configs/mvme147_defconfig b/arch/m68k/configs/mvme147_defconfig
index b2e687a0ec3d..dc2dd61948cd 100644
--- a/arch/m68k/configs/mvme147_defconfig
+++ b/arch/m68k/configs/mvme147_defconfig
@@ -26,6 +26,8 @@ CONFIG_SUN_PARTITION=y
# CONFIG_EFI_PARTITION is not set
CONFIG_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_DEADLINE=m
+CONFIG_MQ_IOSCHED_KYBER=m
+CONFIG_IOSCHED_BFQ=m
CONFIG_KEXEC=y
CONFIG_BOOTINFO_PROC=y
CONFIG_M68030=y
@@ -42,6 +44,7 @@ CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=m
+CONFIG_TLS=m
CONFIG_XFRM_MIGRATE=y
CONFIG_NET_KEY=y
CONFIG_INET=y
@@ -329,7 +332,6 @@ CONFIG_ISCSI_BOOT_SYSFS=m
CONFIG_MVME147_SCSI=y
CONFIG_MD=y
CONFIG_MD_LINEAR=m
-CONFIG_MD_RAID0=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
@@ -341,6 +343,7 @@ CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_UEVENT=y
CONFIG_DM_LOG_WRITES=m
+CONFIG_DM_INTEGRITY=m
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
@@ -387,6 +390,7 @@ CONFIG_MVME147_NET=y
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_NET_VENDOR_SYNOPSYS is not set
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
@@ -417,15 +421,16 @@ CONFIG_HID=m
CONFIG_HIDRAW=y
CONFIG_UHID=m
# CONFIG_HID_GENERIC is not set
+# CONFIG_HID_ITE is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
+# CONFIG_RTC_NVMEM is not set
CONFIG_RTC_DRV_GENERIC=m
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_PROC_HARDWARE=y
CONFIG_EXT4_FS=y
CONFIG_REISERFS_FS=m
CONFIG_JFS_FS=m
-CONFIG_XFS_FS=m
CONFIG_OCFS2_FS=m
# CONFIG_OCFS2_DEBUG_MASKLOG is not set
CONFIG_FS_ENCRYPTION=m
@@ -523,6 +528,8 @@ CONFIG_DLM=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_TEST_LIST_SORT=m
+CONFIG_TEST_SORT=m
CONFIG_ATOMIC64_SELFTEST=m
CONFIG_ASYNC_RAID6_TEST=m
CONFIG_TEST_HEXDUMP=m
@@ -533,14 +540,16 @@ CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_HASH=m
-CONFIG_TEST_LKM=m
CONFIG_TEST_USER_COPY=m
CONFIG_TEST_BPF=m
CONFIG_TEST_FIRMWARE=m
+CONFIG_TEST_SYSCTL=m
CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
+CONFIG_TEST_KMOD=m
CONFIG_EARLY_PRINTK=y
CONFIG_ENCRYPTED_KEYS=m
+CONFIG_HARDENED_USERCOPY=y
CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
diff --git a/arch/m68k/configs/mvme16x_defconfig b/arch/m68k/configs/mvme16x_defconfig
index cbd8ee24d1bc..54e7b523fc3d 100644
--- a/arch/m68k/configs/mvme16x_defconfig
+++ b/arch/m68k/configs/mvme16x_defconfig
@@ -26,6 +26,8 @@ CONFIG_SUN_PARTITION=y
# CONFIG_EFI_PARTITION is not set
CONFIG_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_DEADLINE=m
+CONFIG_MQ_IOSCHED_KYBER=m
+CONFIG_IOSCHED_BFQ=m
CONFIG_KEXEC=y
CONFIG_BOOTINFO_PROC=y
CONFIG_M68040=y
@@ -43,6 +45,7 @@ CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=m
+CONFIG_TLS=m
CONFIG_XFRM_MIGRATE=y
CONFIG_NET_KEY=y
CONFIG_INET=y
@@ -330,7 +333,6 @@ CONFIG_ISCSI_BOOT_SYSFS=m
CONFIG_MVME16x_SCSI=y
CONFIG_MD=y
CONFIG_MD_LINEAR=m
-CONFIG_MD_RAID0=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
@@ -342,6 +344,7 @@ CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_UEVENT=y
CONFIG_DM_LOG_WRITES=m
+CONFIG_DM_INTEGRITY=m
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
@@ -387,6 +390,7 @@ CONFIG_MVME16x_NET=y
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_NET_VENDOR_SYNOPSYS is not set
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
@@ -417,15 +421,16 @@ CONFIG_HID=m
CONFIG_HIDRAW=y
CONFIG_UHID=m
# CONFIG_HID_GENERIC is not set
+# CONFIG_HID_ITE is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
+# CONFIG_RTC_NVMEM is not set
CONFIG_RTC_DRV_GENERIC=m
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_PROC_HARDWARE=y
CONFIG_EXT4_FS=y
CONFIG_REISERFS_FS=m
CONFIG_JFS_FS=m
-CONFIG_XFS_FS=m
CONFIG_OCFS2_FS=m
# CONFIG_OCFS2_DEBUG_MASKLOG is not set
CONFIG_FS_ENCRYPTION=m
@@ -523,6 +528,8 @@ CONFIG_DLM=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_TEST_LIST_SORT=m
+CONFIG_TEST_SORT=m
CONFIG_ATOMIC64_SELFTEST=m
CONFIG_ASYNC_RAID6_TEST=m
CONFIG_TEST_HEXDUMP=m
@@ -533,14 +540,16 @@ CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_HASH=m
-CONFIG_TEST_LKM=m
CONFIG_TEST_USER_COPY=m
CONFIG_TEST_BPF=m
CONFIG_TEST_FIRMWARE=m
+CONFIG_TEST_SYSCTL=m
CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
+CONFIG_TEST_KMOD=m
CONFIG_EARLY_PRINTK=y
CONFIG_ENCRYPTED_KEYS=m
+CONFIG_HARDENED_USERCOPY=y
CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
diff --git a/arch/m68k/configs/q40_defconfig b/arch/m68k/configs/q40_defconfig
index 1e82cc944339..d63d8a15f6db 100644
--- a/arch/m68k/configs/q40_defconfig
+++ b/arch/m68k/configs/q40_defconfig
@@ -27,6 +27,8 @@ CONFIG_SUN_PARTITION=y
CONFIG_SYSV68_PARTITION=y
CONFIG_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_DEADLINE=m
+CONFIG_MQ_IOSCHED_KYBER=m
+CONFIG_IOSCHED_BFQ=m
CONFIG_KEXEC=y
CONFIG_BOOTINFO_PROC=y
CONFIG_M68040=y
@@ -43,6 +45,7 @@ CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=m
+CONFIG_TLS=m
CONFIG_XFRM_MIGRATE=y
CONFIG_NET_KEY=y
CONFIG_INET=y
@@ -336,7 +339,6 @@ CONFIG_ISCSI_TCP=m
CONFIG_ISCSI_BOOT_SYSFS=m
CONFIG_MD=y
CONFIG_MD_LINEAR=m
-CONFIG_MD_RAID0=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
@@ -348,6 +350,7 @@ CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_UEVENT=y
CONFIG_DM_LOG_WRITES=m
+CONFIG_DM_INTEGRITY=m
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
@@ -398,6 +401,7 @@ CONFIG_NE2000=y
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_NET_VENDOR_SYNOPSYS is not set
CONFIG_PLIP=m
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
@@ -439,8 +443,10 @@ CONFIG_HID=m
CONFIG_HIDRAW=y
CONFIG_UHID=m
# CONFIG_HID_GENERIC is not set
+# CONFIG_HID_ITE is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
+# CONFIG_RTC_NVMEM is not set
CONFIG_RTC_DRV_GENERIC=m
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_HEARTBEAT=y
@@ -448,7 +454,6 @@ CONFIG_PROC_HARDWARE=y
CONFIG_EXT4_FS=y
CONFIG_REISERFS_FS=m
CONFIG_JFS_FS=m
-CONFIG_XFS_FS=m
CONFIG_OCFS2_FS=m
# CONFIG_OCFS2_DEBUG_MASKLOG is not set
CONFIG_FS_ENCRYPTION=m
@@ -546,6 +551,8 @@ CONFIG_DLM=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_TEST_LIST_SORT=m
+CONFIG_TEST_SORT=m
CONFIG_ATOMIC64_SELFTEST=m
CONFIG_ASYNC_RAID6_TEST=m
CONFIG_TEST_HEXDUMP=m
@@ -556,14 +563,16 @@ CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_HASH=m
-CONFIG_TEST_LKM=m
CONFIG_TEST_USER_COPY=m
CONFIG_TEST_BPF=m
CONFIG_TEST_FIRMWARE=m
+CONFIG_TEST_SYSCTL=m
CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
+CONFIG_TEST_KMOD=m
CONFIG_EARLY_PRINTK=y
CONFIG_ENCRYPTED_KEYS=m
+CONFIG_HARDENED_USERCOPY=y
CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
diff --git a/arch/m68k/configs/sun3_defconfig b/arch/m68k/configs/sun3_defconfig
index f9e77f57a972..d0924c22f52a 100644
--- a/arch/m68k/configs/sun3_defconfig
+++ b/arch/m68k/configs/sun3_defconfig
@@ -26,6 +26,8 @@ CONFIG_UNIXWARE_DISKLABEL=y
CONFIG_SYSV68_PARTITION=y
CONFIG_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_DEADLINE=m
+CONFIG_MQ_IOSCHED_KYBER=m
+CONFIG_IOSCHED_BFQ=m
CONFIG_KEXEC=y
CONFIG_BOOTINFO_PROC=y
CONFIG_SUN3=y
@@ -40,6 +42,7 @@ CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=m
+CONFIG_TLS=m
CONFIG_XFRM_MIGRATE=y
CONFIG_NET_KEY=y
CONFIG_INET=y
@@ -327,7 +330,6 @@ CONFIG_ISCSI_BOOT_SYSFS=m
CONFIG_SUN3_SCSI=y
CONFIG_MD=y
CONFIG_MD_LINEAR=m
-CONFIG_MD_RAID0=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
@@ -339,6 +341,7 @@ CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_UEVENT=y
CONFIG_DM_LOG_WRITES=m
+CONFIG_DM_INTEGRITY=m
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
@@ -385,6 +388,7 @@ CONFIG_SUN3_82586=y
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_NET_VENDOR_SYNOPSYS is not set
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
@@ -419,15 +423,16 @@ CONFIG_HID=m
CONFIG_HIDRAW=y
CONFIG_UHID=m
# CONFIG_HID_GENERIC is not set
+# CONFIG_HID_ITE is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
+# CONFIG_RTC_NVMEM is not set
CONFIG_RTC_DRV_GENERIC=m
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_PROC_HARDWARE=y
CONFIG_EXT4_FS=y
CONFIG_REISERFS_FS=m
CONFIG_JFS_FS=m
-CONFIG_XFS_FS=m
CONFIG_OCFS2_FS=m
# CONFIG_OCFS2_DEBUG_MASKLOG is not set
CONFIG_FS_ENCRYPTION=m
@@ -525,6 +530,8 @@ CONFIG_DLM=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_TEST_LIST_SORT=m
+CONFIG_TEST_SORT=m
CONFIG_ATOMIC64_SELFTEST=m
CONFIG_ASYNC_RAID6_TEST=m
CONFIG_TEST_HEXDUMP=m
@@ -535,13 +542,15 @@ CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_HASH=m
-CONFIG_TEST_LKM=m
CONFIG_TEST_USER_COPY=m
CONFIG_TEST_BPF=m
CONFIG_TEST_FIRMWARE=m
+CONFIG_TEST_SYSCTL=m
CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
+CONFIG_TEST_KMOD=m
CONFIG_ENCRYPTED_KEYS=m
+CONFIG_HARDENED_USERCOPY=y
CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
diff --git a/arch/m68k/configs/sun3x_defconfig b/arch/m68k/configs/sun3x_defconfig
index 3c394fcfb368..3001ee1e5dc5 100644
--- a/arch/m68k/configs/sun3x_defconfig
+++ b/arch/m68k/configs/sun3x_defconfig
@@ -26,6 +26,8 @@ CONFIG_UNIXWARE_DISKLABEL=y
CONFIG_SYSV68_PARTITION=y
CONFIG_IOSCHED_DEADLINE=m
CONFIG_MQ_IOSCHED_DEADLINE=m
+CONFIG_MQ_IOSCHED_KYBER=m
+CONFIG_IOSCHED_BFQ=m
CONFIG_KEXEC=y
CONFIG_BOOTINFO_PROC=y
CONFIG_SUN3X=y
@@ -40,6 +42,7 @@ CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=m
+CONFIG_TLS=m
CONFIG_XFRM_MIGRATE=y
CONFIG_NET_KEY=y
CONFIG_INET=y
@@ -327,7 +330,6 @@ CONFIG_ISCSI_BOOT_SYSFS=m
CONFIG_SUN3X_ESP=y
CONFIG_MD=y
CONFIG_MD_LINEAR=m
-CONFIG_MD_RAID0=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
@@ -339,6 +341,7 @@ CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_UEVENT=y
CONFIG_DM_LOG_WRITES=m
+CONFIG_DM_INTEGRITY=m
CONFIG_TARGET_CORE=m
CONFIG_TCM_IBLOCK=m
CONFIG_TCM_FILEIO=m
@@ -385,6 +388,7 @@ CONFIG_SUN3LANCE=y
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_NET_VENDOR_SYNOPSYS is not set
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
@@ -419,15 +423,16 @@ CONFIG_HID=m
CONFIG_HIDRAW=y
CONFIG_UHID=m
# CONFIG_HID_GENERIC is not set
+# CONFIG_HID_ITE is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
+# CONFIG_RTC_NVMEM is not set
CONFIG_RTC_DRV_GENERIC=m
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_PROC_HARDWARE=y
CONFIG_EXT4_FS=y
CONFIG_REISERFS_FS=m
CONFIG_JFS_FS=m
-CONFIG_XFS_FS=m
CONFIG_OCFS2_FS=m
# CONFIG_OCFS2_DEBUG_MASKLOG is not set
CONFIG_FS_ENCRYPTION=m
@@ -525,6 +530,8 @@ CONFIG_DLM=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_TEST_LIST_SORT=m
+CONFIG_TEST_SORT=m
CONFIG_ATOMIC64_SELFTEST=m
CONFIG_ASYNC_RAID6_TEST=m
CONFIG_TEST_HEXDUMP=m
@@ -535,14 +542,16 @@ CONFIG_TEST_BITMAP=m
CONFIG_TEST_UUID=m
CONFIG_TEST_RHASHTABLE=m
CONFIG_TEST_HASH=m
-CONFIG_TEST_LKM=m
CONFIG_TEST_USER_COPY=m
CONFIG_TEST_BPF=m
CONFIG_TEST_FIRMWARE=m
+CONFIG_TEST_SYSCTL=m
CONFIG_TEST_UDELAY=m
CONFIG_TEST_STATIC_KEYS=m
+CONFIG_TEST_KMOD=m
CONFIG_EARLY_PRINTK=y
CONFIG_ENCRYPTED_KEYS=m
+CONFIG_HARDENED_USERCOPY=y
CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild
index 82005d2ff717..59d6d0d38f67 100644
--- a/arch/m68k/include/asm/Kbuild
+++ b/arch/m68k/include/asm/Kbuild
@@ -1,37 +1,25 @@
generic-y += barrier.h
-generic-y += bitsperlong.h
generic-y += clkdev.h
generic-y += device.h
generic-y += emergency-restart.h
-generic-y += errno.h
generic-y += exec.h
generic-y += extable.h
generic-y += futex.h
generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ipcbuf.h
generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += kdebug.h
generic-y += kmap_types.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
-generic-y += mman.h
generic-y += percpu.h
generic-y += preempt.h
-generic-y += resource.h
generic-y += sections.h
-generic-y += shmparam.h
-generic-y += siginfo.h
generic-y += spinlock.h
-generic-y += statfs.h
-generic-y += termios.h
generic-y += topology.h
generic-y += trace_clock.h
-generic-y += types.h
generic-y += word-at-a-time.h
generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/m68k/include/asm/asm-prototypes.h b/arch/m68k/include/asm/asm-prototypes.h
new file mode 100644
index 000000000000..22ccb9c97576
--- /dev/null
+++ b/arch/m68k/include/asm/asm-prototypes.h
@@ -0,0 +1,5 @@
+extern int __divsi3(int, int);
+extern int __modsi3(int, int);
+extern int __mulsi3(int, int);
+extern unsigned int __udivsi3(unsigned int, unsigned int);
+extern unsigned int __umodsi3(unsigned int, unsigned int);
diff --git a/arch/m68k/include/asm/flat.h b/arch/m68k/include/asm/flat.h
index 00c392b0cabd..b2a41f5b3890 100644
--- a/arch/m68k/include/asm/flat.h
+++ b/arch/m68k/include/asm/flat.h
@@ -5,16 +5,32 @@
#ifndef __M68KNOMMU_FLAT_H__
#define __M68KNOMMU_FLAT_H__
+#include <linux/uaccess.h>
+
#define flat_argvp_envp_on_stack() 1
#define flat_old_ram_flag(flags) (flags)
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, p) \
- ({ unsigned long __val; __get_user_unaligned(__val, rp); __val; })
-#define flat_put_addr_at_rp(rp, val, relval) __put_user_unaligned(val, rp)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+#ifdef CONFIG_CPU_HAS_NO_UNALIGNED
+ return copy_from_user(addr, rp, 4) ? -EFAULT : 0;
+#else
+ return get_user(*addr, rp);
+#endif
+}
+
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+#ifdef CONFIG_CPU_HAS_NO_UNALIGNED
+ return copy_to_user(rp, &addr, 4) ? -EFAULT : 0;
+#else
+ return put_user(addr, rp);
+#endif
+}
#define flat_get_relocate_addr(rel) (rel)
-static inline int flat_set_persistent(unsigned long relval,
- unsigned long *persistent)
+static inline int flat_set_persistent(u32 relval, u32 *persistent)
{
return 0;
}
diff --git a/arch/m68k/include/asm/page.h b/arch/m68k/include/asm/page.h
index 430d4d54c883..d8a02c7e72d3 100644
--- a/arch/m68k/include/asm/page.h
+++ b/arch/m68k/include/asm/page.h
@@ -32,7 +32,7 @@ typedef struct page *pgtable_t;
#define pgprot_val(x) ((x).pgprot)
#define __pte(x) ((pte_t) { (x) } )
-#define __pmd(x) ((pmd_t) { (x) } )
+#define __pmd(x) ((pmd_t) { { (x) }, })
#define __pgd(x) ((pgd_t) { (x) } )
#define __pgprot(x) ((pgprot_t) { (x) } )
diff --git a/arch/m68k/include/asm/signal.h b/arch/m68k/include/asm/signal.h
index 8c8ce5e1ee0e..3bc64d02ba5f 100644
--- a/arch/m68k/include/asm/signal.h
+++ b/arch/m68k/include/asm/signal.h
@@ -62,9 +62,4 @@ static inline int __gen_sigismember(sigset_t *set, int _sig)
#endif /* !CONFIG_CPU_HAS_NO_BITFIELDS */
-#ifndef __uClinux__
-extern void ptrace_signal_deliver(void);
-#define ptrace_signal_deliver ptrace_signal_deliver
-#endif /* __uClinux__ */
-
#endif /* _M68K_SIGNAL_H */
diff --git a/arch/m68k/include/asm/uaccess.h b/arch/m68k/include/asm/uaccess.h
index 67b3481d6020..63ba18e4c9a2 100644
--- a/arch/m68k/include/asm/uaccess.h
+++ b/arch/m68k/include/asm/uaccess.h
@@ -3,11 +3,4 @@
#else
#include <asm/uaccess_mm.h>
#endif
-
#include <asm/extable.h>
-#ifdef CONFIG_CPU_HAS_NO_UNALIGNED
-#include <asm-generic/uaccess-unaligned.h>
-#else
-#define __get_user_unaligned(x, ptr) __get_user((x), (ptr))
-#define __put_user_unaligned(x, ptr) __put_user((x), (ptr))
-#endif
diff --git a/arch/m68k/include/asm/uaccess_mm.h b/arch/m68k/include/asm/uaccess_mm.h
index ef856ffeffdf..1da1e23de74c 100644
--- a/arch/m68k/include/asm/uaccess_mm.h
+++ b/arch/m68k/include/asm/uaccess_mm.h
@@ -378,7 +378,6 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n)
(uaccess_kernel() ? ~0UL : TASK_SIZE)
extern long strncpy_from_user(char *dst, const char __user *src, long count);
-extern __must_check long strlen_user(const char __user *str);
extern __must_check long strnlen_user(const char __user *str, long n);
unsigned long __clear_user(void __user *to, unsigned long n);
diff --git a/arch/m68k/include/asm/uaccess_no.h b/arch/m68k/include/asm/uaccess_no.h
index e482c3899ff1..53d7b792a43d 100644
--- a/arch/m68k/include/asm/uaccess_no.h
+++ b/arch/m68k/include/asm/uaccess_no.h
@@ -141,8 +141,6 @@ static inline long strnlen_user(const char *src, long n)
return(strlen(src) + 1); /* DAVIDM make safer */
}
-#define strlen_user(str) strnlen_user(str, 32767)
-
/*
* Zero Userspace
*/
diff --git a/arch/m68k/include/uapi/asm/Kbuild b/arch/m68k/include/uapi/asm/Kbuild
index 64368077235a..3717b64a620d 100644
--- a/arch/m68k/include/uapi/asm/Kbuild
+++ b/arch/m68k/include/uapi/asm/Kbuild
@@ -2,10 +2,21 @@
include include/uapi/asm-generic/Kbuild.asm
generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += ioctl.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
+generic-y += mman.h
generic-y += msgbuf.h
+generic-y += resource.h
generic-y += sembuf.h
generic-y += shmbuf.h
+generic-y += shmparam.h
+generic-y += siginfo.h
generic-y += socket.h
generic-y += sockios.h
+generic-y += statfs.h
generic-y += termbits.h
generic-y += termios.h
+generic-y += types.h
diff --git a/arch/m68k/kernel/signal.c b/arch/m68k/kernel/signal.c
index 6f945bb5ffbd..e79421f5b9cd 100644
--- a/arch/m68k/kernel/signal.c
+++ b/arch/m68k/kernel/signal.c
@@ -109,22 +109,6 @@ int fixup_exception(struct pt_regs *regs)
return 1;
}
-void ptrace_signal_deliver(void)
-{
- struct pt_regs *regs = signal_pt_regs();
- if (regs->orig_d0 < 0)
- return;
- switch (regs->d0) {
- case -ERESTARTNOHAND:
- case -ERESTARTSYS:
- case -ERESTARTNOINTR:
- regs->d0 = regs->orig_d0;
- regs->orig_d0 = -1;
- regs->pc -= 2;
- break;
- }
-}
-
static inline void push_cache (unsigned long vaddr)
{
/*
diff --git a/arch/m68k/mac/misc.c b/arch/m68k/mac/misc.c
index 8aa8792e3174..d96348a52362 100644
--- a/arch/m68k/mac/misc.c
+++ b/arch/m68k/mac/misc.c
@@ -357,6 +357,17 @@ static void cuda_shutdown(void)
struct adb_request req;
if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_POWERDOWN) < 0)
return;
+
+ /* Avoid infinite polling loop when PSU is not under Cuda control */
+ switch (macintosh_config->ident) {
+ case MAC_MODEL_C660:
+ case MAC_MODEL_Q605:
+ case MAC_MODEL_Q605_ACC:
+ case MAC_MODEL_P475:
+ case MAC_MODEL_P475F:
+ return;
+ }
+
while (!req.complete)
cuda_poll();
}
@@ -463,8 +474,9 @@ void mac_poweroff(void)
pmu_shutdown();
#endif
}
- local_irq_enable();
+
pr_crit("It is now safe to turn off your Macintosh.\n");
+ local_irq_disable();
while(1);
}
@@ -554,8 +566,8 @@ void mac_reset(void)
}
/* should never get here */
- local_irq_enable();
pr_crit("Restart failed. Please restart manually.\n");
+ local_irq_disable();
while(1);
}
diff --git a/arch/metag/Kconfig b/arch/metag/Kconfig
index 5b7a45d99cfb..7d8b322e5101 100644
--- a/arch/metag/Kconfig
+++ b/arch/metag/Kconfig
@@ -26,6 +26,7 @@ config METAG
select HAVE_SYSCALL_TRACEPOINTS
select HAVE_UNDERSCORE_SYMBOL_PREFIX
select IRQ_DOMAIN
+ select GENERIC_IRQ_EFFECTIVE_AFF_MASK
select MODULES_USE_ELF_RELA
select OF
select OF_EARLY_FLATTREE
diff --git a/arch/metag/include/asm/Kbuild b/arch/metag/include/asm/Kbuild
index 8f940553a579..3fba97ed9bb2 100644
--- a/arch/metag/include/asm/Kbuild
+++ b/arch/metag/include/asm/Kbuild
@@ -1,58 +1,34 @@
-generic-y += auxvec.h
-generic-y += bitsperlong.h
generic-y += bugs.h
generic-y += clkdev.h
generic-y += current.h
generic-y += device.h
generic-y += dma.h
generic-y += emergency-restart.h
-generic-y += errno.h
generic-y += exec.h
generic-y += extable.h
generic-y += fb.h
-generic-y += fcntl.h
generic-y += futex.h
generic-y += hardirq.h
generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += kdebug.h
generic-y += kmap_types.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
-generic-y += msgbuf.h
-generic-y += param.h
generic-y += pci.h
generic-y += percpu.h
-generic-y += poll.h
-generic-y += posix_types.h
generic-y += preempt.h
generic-y += sections.h
-generic-y += sembuf.h
generic-y += serial.h
-generic-y += shmbuf.h
-generic-y += shmparam.h
-generic-y += signal.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += stat.h
-generic-y += statfs.h
generic-y += switch_to.h
-generic-y += termbits.h
-generic-y += termios.h
generic-y += timex.h
generic-y += trace_clock.h
-generic-y += types.h
-generic-y += ucontext.h
generic-y += unaligned.h
generic-y += user.h
generic-y += vga.h
generic-y += word-at-a-time.h
generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/metag/include/asm/atomic_lock1.h b/arch/metag/include/asm/atomic_lock1.h
index 6c1380a8a0d4..eee779f26cc4 100644
--- a/arch/metag/include/asm/atomic_lock1.h
+++ b/arch/metag/include/asm/atomic_lock1.h
@@ -37,6 +37,8 @@ static inline int atomic_set(atomic_t *v, int i)
return i;
}
+#define atomic_set_release(v, i) atomic_set((v), (i))
+
#define ATOMIC_OP(op, c_op) \
static inline void atomic_##op(int i, atomic_t *v) \
{ \
diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h
index fad3dc3cb210..ea573be2b6d0 100644
--- a/arch/metag/include/asm/dma-mapping.h
+++ b/arch/metag/include/asm/dma-mapping.h
@@ -9,7 +9,7 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
}
/*
- * dma_alloc_noncoherent() returns non-cacheable memory, so there's no need to
+ * dma_alloc_attrs() always returns non-cacheable memory, so there's no need to
* do any flushing here.
*/
static inline void
diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h
index ec6a49076980..8ae92d6abfd2 100644
--- a/arch/metag/include/asm/processor.h
+++ b/arch/metag/include/asm/processor.h
@@ -131,9 +131,6 @@ static inline void release_thread(struct task_struct *dead_task)
{
}
-#define copy_segments(tsk, mm) do { } while (0)
-#define release_segments(mm) do { } while (0)
-
/*
* Return saved PC of a blocked thread.
*/
diff --git a/arch/metag/include/asm/spinlock.h b/arch/metag/include/asm/spinlock.h
index c0c7a22be1ae..ddf7fe5708a6 100644
--- a/arch/metag/include/asm/spinlock.h
+++ b/arch/metag/include/asm/spinlock.h
@@ -15,11 +15,6 @@
* locked.
*/
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- smp_cond_load_acquire(&lock->lock, !VAL);
-}
-
#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
diff --git a/arch/metag/include/asm/topology.h b/arch/metag/include/asm/topology.h
index e95f874ded1b..707c7f7b6bea 100644
--- a/arch/metag/include/asm/topology.h
+++ b/arch/metag/include/asm/topology.h
@@ -4,7 +4,6 @@
#ifdef CONFIG_NUMA
#define cpu_to_node(cpu) ((void)(cpu), 0)
-#define parent_node(node) ((void)(node), 0)
#define cpumask_of_node(node) ((void)node, cpu_online_mask)
diff --git a/arch/metag/include/asm/uaccess.h b/arch/metag/include/asm/uaccess.h
index 9c8fbf8fb5aa..47469e26641a 100644
--- a/arch/metag/include/asm/uaccess.h
+++ b/arch/metag/include/asm/uaccess.h
@@ -188,8 +188,6 @@ strncpy_from_user(char *dst, const char __user *src, long count)
*/
extern long __must_check strnlen_user(const char __user *src, long count);
-#define strlen_user(str) strnlen_user(str, 32767)
-
extern unsigned long raw_copy_from_user(void *to, const void __user *from,
unsigned long n);
extern unsigned long raw_copy_to_user(void __user *to, const void *from,
diff --git a/arch/metag/include/uapi/asm/Kbuild b/arch/metag/include/uapi/asm/Kbuild
index b29731ebd7a9..6ac763d9a3e3 100644
--- a/arch/metag/include/uapi/asm/Kbuild
+++ b/arch/metag/include/uapi/asm/Kbuild
@@ -1,6 +1,30 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += posix_types.h
generic-y += resource.h
+generic-y += sembuf.h
generic-y += setup.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
+generic-y += signal.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
+generic-y += ucontext.h
diff --git a/arch/metag/kernel/smp.c b/arch/metag/kernel/smp.c
index 232a12bf3f99..2dbbb7c66043 100644
--- a/arch/metag/kernel/smp.c
+++ b/arch/metag/kernel/smp.c
@@ -567,8 +567,7 @@ static void stop_this_cpu(void *data)
{
unsigned int cpu = smp_processor_id();
- if (system_state == SYSTEM_BOOTING ||
- system_state == SYSTEM_RUNNING) {
+ if (system_state <= SYSTEM_RUNNING) {
spin_lock(&stop_lock);
pr_crit("CPU%u: stopping\n", cpu);
dump_stack();
diff --git a/arch/metag/mm/hugetlbpage.c b/arch/metag/mm/hugetlbpage.c
index db1b7da91e4f..67fd53e2935a 100644
--- a/arch/metag/mm/hugetlbpage.c
+++ b/arch/metag/mm/hugetlbpage.c
@@ -74,7 +74,8 @@ pte_t *huge_pte_alloc(struct mm_struct *mm,
return pte;
}
-pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
+pte_t *huge_pte_offset(struct mm_struct *mm,
+ unsigned long addr, unsigned long sz)
{
pgd_t *pgd;
pud_t *pud;
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 85885a501dce..4f798aa671dd 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -2,9 +2,10 @@ config MICROBLAZE
def_bool y
select ARCH_HAS_GCOV_PROFILE_ALL
select ARCH_MIGHT_HAVE_PC_PARPORT
+ select ARCH_NO_COHERENT_DMA_MMAP if !MMU
select ARCH_WANT_IPC_PARSE_VERSION
select BUILDTIME_EXTABLE_SORT
- select CLKSRC_OF
+ select TIMER_OF
select CLONE_BACKWARDS3
select COMMON_CLK
select GENERIC_ATOMIC64
@@ -35,6 +36,22 @@ config MICROBLAZE
select VIRT_TO_BUS
select CPU_NO_EFFICIENT_FFS
+# Endianness selection
+choice
+ prompt "Endianness selection"
+ default CPU_LITTLE_ENDIAN
+ help
+ microblaze architectures can be configured for either little or
+ big endian formats. Be sure to select the appropriate mode.
+
+config CPU_BIG_ENDIAN
+ bool "Big endian"
+
+config CPU_LITTLE_ENDIAN
+ bool "Little endian"
+
+endchoice
+
config SWAP
def_bool n
diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile
index 740f2b82a182..1f6c486826a0 100644
--- a/arch/microblaze/Makefile
+++ b/arch/microblaze/Makefile
@@ -35,6 +35,8 @@ endif
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
+CPUFLAGS-$(CONFIG_BIG_ENDIAN) += -mbig-endian
+CPUFLAGS-$(CONFIG_LITTLE_ENDIAN) += -mlittle-endian
CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
diff --git a/arch/microblaze/configs/mmu_defconfig b/arch/microblaze/configs/mmu_defconfig
index dc5dd5b69fde..92fd4e95b488 100644
--- a/arch/microblaze/configs/mmu_defconfig
+++ b/arch/microblaze/configs/mmu_defconfig
@@ -1,8 +1,6 @@
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
-CONFIG_FHANDLE=y
CONFIG_AUDIT=y
-CONFIG_AUDIT_LOGINUID_IMMUTABLE=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_SYSFS_DEPRECATED=y
@@ -33,10 +31,12 @@ CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
+CONFIG_BRIDGE=m
CONFIG_MTD=y
-CONFIG_PROC_DEVICETREE=y
+CONFIG_MTD_CFI=y
+CONFIG_MTD_CFI_INTELEXT=y
+CONFIG_MTD_CFI_AMDSTD=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=8192
CONFIG_NETDEVICES=y
@@ -47,9 +47,9 @@ CONFIG_XILINX_LL_TEMAC=y
# CONFIG_VT is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_UARTLITE=y
CONFIG_SERIAL_UARTLITE_CONSOLE=y
-CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set
CONFIG_XILINX_HWICAP=y
CONFIG_I2C=y
@@ -66,7 +66,6 @@ CONFIG_FB=y
CONFIG_FB_XILINX=y
# CONFIG_USB_SUPPORT is not set
CONFIG_UIO=y
-CONFIG_UIO_PDRV=y
CONFIG_UIO_PDRV_GENIRQ=y
CONFIG_UIO_DMEM_GENIRQ=y
CONFIG_EXT2_FS=y
@@ -77,14 +76,13 @@ CONFIG_NFS_FS=y
CONFIG_CIFS=y
CONFIG_CIFS_STATS=y
CONFIG_CIFS_STATS2=y
-CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_SLAB=y
+CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEBUG_SPINLOCK=y
-CONFIG_DEBUG_INFO=y
CONFIG_KGDB=y
CONFIG_KGDB_TESTS=y
CONFIG_KGDB_KDB=y
CONFIG_EARLY_PRINTK=y
CONFIG_KEYS=y
CONFIG_ENCRYPTED_KEYS=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/microblaze/configs/nommu_defconfig b/arch/microblaze/configs/nommu_defconfig
index 4cdaf565e638..06d69a6e192d 100644
--- a/arch/microblaze/configs/nommu_defconfig
+++ b/arch/microblaze/configs/nommu_defconfig
@@ -1,9 +1,6 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
-CONFIG_FHANDLE=y
CONFIG_AUDIT=y
-CONFIG_AUDIT_LOGINUID_IMMUTABLE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_IKCONFIG=y
@@ -34,18 +31,15 @@ CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_RAM=y
CONFIG_MTD_UCLINUX=y
-CONFIG_PROC_DEVICETREE=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=8192
CONFIG_NETDEVICES=y
@@ -56,9 +50,9 @@ CONFIG_XILINX_LL_TEMAC=y
# CONFIG_VT is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_UARTLITE=y
CONFIG_SERIAL_UARTLITE_CONSOLE=y
-CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set
CONFIG_XILINX_HWICAP=y
CONFIG_I2C=y
@@ -74,10 +68,6 @@ CONFIG_XILINX_WATCHDOG=y
CONFIG_FB=y
CONFIG_FB_XILINX=y
# CONFIG_USB_SUPPORT is not set
-CONFIG_UIO=y
-CONFIG_UIO_PDRV=y
-CONFIG_UIO_PDRV_GENIRQ=y
-CONFIG_UIO_DMEM_GENIRQ=y
CONFIG_EXT2_FS=y
# CONFIG_DNOTIFY is not set
CONFIG_CRAMFS=y
@@ -85,10 +75,10 @@ CONFIG_ROMFS_FS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3_ACL=y
CONFIG_NLS=y
-CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_SLAB=y
+CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEBUG_SPINLOCK=y
-CONFIG_DEBUG_INFO=y
CONFIG_EARLY_PRINTK=y
CONFIG_KEYS=y
CONFIG_ENCRYPTED_KEYS=y
@@ -97,4 +87,3 @@ CONFIG_CRYPTO_MD4=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_ARC4=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild
index 56830ff65333..9d66f7793841 100644
--- a/arch/microblaze/include/asm/Kbuild
+++ b/arch/microblaze/include/asm/Kbuild
@@ -1,14 +1,32 @@
-
generic-y += barrier.h
+generic-y += bitops.h
+generic-y += bug.h
+generic-y += bugs.h
generic-y += clkdev.h
generic-y += device.h
+generic-y += div64.h
+generic-y += emergency-restart.h
generic-y += exec.h
generic-y += extable.h
+generic-y += fb.h
+generic-y += hardirq.h
+generic-y += irq_regs.h
generic-y += irq_work.h
+generic-y += kdebug.h
+generic-y += kmap_types.h
+generic-y += kprobes.h
+generic-y += linkage.h
+generic-y += local.h
+generic-y += local64.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
+generic-y += parport.h
+generic-y += percpu.h
generic-y += preempt.h
+generic-y += serial.h
generic-y += syscalls.h
+generic-y += topology.h
generic-y += trace_clock.h
+generic-y += vga.h
generic-y += word-at-a-time.h
-generic-y += kprobes.h
+generic-y += xor.h
diff --git a/arch/microblaze/include/asm/bitops.h b/arch/microblaze/include/asm/bitops.h
deleted file mode 100644
index a72468f15c8b..000000000000
--- a/arch/microblaze/include/asm/bitops.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/bitops.h>
diff --git a/arch/microblaze/include/asm/bug.h b/arch/microblaze/include/asm/bug.h
deleted file mode 100644
index b12fd89e42e9..000000000000
--- a/arch/microblaze/include/asm/bug.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/bug.h>
diff --git a/arch/microblaze/include/asm/bugs.h b/arch/microblaze/include/asm/bugs.h
deleted file mode 100644
index 61791e1ad9f5..000000000000
--- a/arch/microblaze/include/asm/bugs.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/bugs.h>
diff --git a/arch/microblaze/include/asm/div64.h b/arch/microblaze/include/asm/div64.h
deleted file mode 100644
index 6cd978cefb28..000000000000
--- a/arch/microblaze/include/asm/div64.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/div64.h>
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index 3fad5e722a66..e15cd2f76e23 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -28,8 +28,6 @@
#include <asm/io.h>
#include <asm/cacheflush.h>
-#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-
#define __dma_alloc_coherent(dev, gfp, size, handle) NULL
#define __dma_free_coherent(size, addr) ((void)0)
diff --git a/arch/microblaze/include/asm/emergency-restart.h b/arch/microblaze/include/asm/emergency-restart.h
deleted file mode 100644
index 3711bd9d50bd..000000000000
--- a/arch/microblaze/include/asm/emergency-restart.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/emergency-restart.h>
diff --git a/arch/microblaze/include/asm/fb.h b/arch/microblaze/include/asm/fb.h
deleted file mode 100644
index 3a4988e8df45..000000000000
--- a/arch/microblaze/include/asm/fb.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/fb.h>
diff --git a/arch/microblaze/include/asm/flat.h b/arch/microblaze/include/asm/flat.h
index 6847c1512c7b..3d2747d4c967 100644
--- a/arch/microblaze/include/asm/flat.h
+++ b/arch/microblaze/include/asm/flat.h
@@ -32,29 +32,27 @@
* reference
*/
-static inline unsigned long
-flat_get_addr_from_rp(unsigned long *rp, unsigned long relval,
- unsigned long flags, unsigned long *persistent)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
{
- unsigned long addr;
- (void)flags;
+ u32 *p = (__force u32 *)rp;
/* Is it a split 64/32 reference? */
if (relval & 0x80000000) {
/* Grab the two halves of the reference */
- unsigned long val_hi, val_lo;
+ u32 val_hi, val_lo;
- val_hi = get_unaligned(rp);
- val_lo = get_unaligned(rp+1);
+ val_hi = get_unaligned(p);
+ val_lo = get_unaligned(p+1);
/* Crack the address out */
- addr = ((val_hi & 0xffff) << 16) + (val_lo & 0xffff);
+ *addr = ((val_hi & 0xffff) << 16) + (val_lo & 0xffff);
} else {
/* Get the address straight out */
- addr = get_unaligned(rp);
+ *addr = get_unaligned(p);
}
- return addr;
+ return 0;
}
/*
@@ -62,26 +60,28 @@ flat_get_addr_from_rp(unsigned long *rp, unsigned long relval,
* unaligned.
*/
-static inline void
-flat_put_addr_at_rp(unsigned long *rp, unsigned long addr, unsigned long relval)
+static inline int
+flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 relval)
{
+ u32 *p = (__force u32 *)rp;
/* Is this a split 64/32 reloc? */
if (relval & 0x80000000) {
/* Get the two "halves" */
- unsigned long val_hi = get_unaligned(rp);
- unsigned long val_lo = get_unaligned(rp + 1);
+ unsigned long val_hi = get_unaligned(p);
+ unsigned long val_lo = get_unaligned(p + 1);
/* insert the address */
val_hi = (val_hi & 0xffff0000) | addr >> 16;
val_lo = (val_lo & 0xffff0000) | (addr & 0xffff);
/* store the two halves back into memory */
- put_unaligned(val_hi, rp);
- put_unaligned(val_lo, rp+1);
+ put_unaligned(val_hi, p);
+ put_unaligned(val_lo, p+1);
} else {
/* Put it straight in, no messing around */
- put_unaligned(addr, rp);
+ put_unaligned(addr, p);
}
+ return 0;
}
#define flat_get_relocate_addr(rel) (rel & 0x7fffffff)
diff --git a/arch/microblaze/include/asm/futex.h b/arch/microblaze/include/asm/futex.h
index 01848f056f43..a9dad9e5e132 100644
--- a/arch/microblaze/include/asm/futex.h
+++ b/arch/microblaze/include/asm/futex.h
@@ -29,18 +29,9 @@
})
static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
int oldval = 0, ret;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
- return -EFAULT;
pagefault_disable();
@@ -66,30 +57,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
pagefault_enable();
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ:
- ret = (oldval == cmparg);
- break;
- case FUTEX_OP_CMP_NE:
- ret = (oldval != cmparg);
- break;
- case FUTEX_OP_CMP_LT:
- ret = (oldval < cmparg);
- break;
- case FUTEX_OP_CMP_GE:
- ret = (oldval >= cmparg);
- break;
- case FUTEX_OP_CMP_LE:
- ret = (oldval <= cmparg);
- break;
- case FUTEX_OP_CMP_GT:
- ret = (oldval > cmparg);
- break;
- default:
- ret = -ENOSYS;
- }
- }
+ if (!ret)
+ *oval = oldval;
+
return ret;
}
diff --git a/arch/microblaze/include/asm/hardirq.h b/arch/microblaze/include/asm/hardirq.h
deleted file mode 100644
index fb3c05a0cbbf..000000000000
--- a/arch/microblaze/include/asm/hardirq.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/hardirq.h>
diff --git a/arch/microblaze/include/asm/irq_regs.h b/arch/microblaze/include/asm/irq_regs.h
deleted file mode 100644
index 3dd9c0b70270..000000000000
--- a/arch/microblaze/include/asm/irq_regs.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/irq_regs.h>
diff --git a/arch/microblaze/include/asm/kdebug.h b/arch/microblaze/include/asm/kdebug.h
deleted file mode 100644
index 6ece1b037665..000000000000
--- a/arch/microblaze/include/asm/kdebug.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/kdebug.h>
diff --git a/arch/microblaze/include/asm/kmap_types.h b/arch/microblaze/include/asm/kmap_types.h
deleted file mode 100644
index 25975252d83d..000000000000
--- a/arch/microblaze/include/asm/kmap_types.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_MICROBLAZE_KMAP_TYPES_H
-#define _ASM_MICROBLAZE_KMAP_TYPES_H
-
-#include <asm-generic/kmap_types.h>
-
-#endif /* _ASM_MICROBLAZE_KMAP_TYPES_H */
diff --git a/arch/microblaze/include/asm/linkage.h b/arch/microblaze/include/asm/linkage.h
deleted file mode 100644
index 0540bbaad897..000000000000
--- a/arch/microblaze/include/asm/linkage.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/linkage.h>
diff --git a/arch/microblaze/include/asm/local.h b/arch/microblaze/include/asm/local.h
deleted file mode 100644
index c11c530f74d0..000000000000
--- a/arch/microblaze/include/asm/local.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/local.h>
diff --git a/arch/microblaze/include/asm/local64.h b/arch/microblaze/include/asm/local64.h
deleted file mode 100644
index 36c93b5cc239..000000000000
--- a/arch/microblaze/include/asm/local64.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/local64.h>
diff --git a/arch/microblaze/include/asm/parport.h b/arch/microblaze/include/asm/parport.h
deleted file mode 100644
index cf252af64590..000000000000
--- a/arch/microblaze/include/asm/parport.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/parport.h>
diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h
index efd4983cb697..114b93488193 100644
--- a/arch/microblaze/include/asm/pci.h
+++ b/arch/microblaze/include/asm/pci.h
@@ -81,9 +81,6 @@ extern pgprot_t pci_phys_mem_access_prot(struct file *file,
#define HAVE_ARCH_PCI_RESOURCE_TO_USER
-extern void pcibios_setup_bus_devices(struct pci_bus *bus);
-extern void pcibios_setup_bus_self(struct pci_bus *bus);
-
/* This part of code was originally in xilinx-pci.h */
#ifdef CONFIG_PCI_XILINX
extern void __init xilinx_pci_init(void);
diff --git a/arch/microblaze/include/asm/percpu.h b/arch/microblaze/include/asm/percpu.h
deleted file mode 100644
index 06a959d67234..000000000000
--- a/arch/microblaze/include/asm/percpu.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/percpu.h>
diff --git a/arch/microblaze/include/asm/serial.h b/arch/microblaze/include/asm/serial.h
deleted file mode 100644
index a0cb0caff152..000000000000
--- a/arch/microblaze/include/asm/serial.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/serial.h>
diff --git a/arch/microblaze/include/asm/shmparam.h b/arch/microblaze/include/asm/shmparam.h
deleted file mode 100644
index 93f30deb95d0..000000000000
--- a/arch/microblaze/include/asm/shmparam.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/shmparam.h>
diff --git a/arch/microblaze/include/asm/topology.h b/arch/microblaze/include/asm/topology.h
deleted file mode 100644
index 5428f333a02c..000000000000
--- a/arch/microblaze/include/asm/topology.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/topology.h>
diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h
index 38f2c9ccef10..81f16aadbf9e 100644
--- a/arch/microblaze/include/asm/uaccess.h
+++ b/arch/microblaze/include/asm/uaccess.h
@@ -355,14 +355,12 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n)
*/
extern int __strncpy_user(char *to, const char __user *from, int len);
-#define __strncpy_from_user __strncpy_user
-
static inline long
strncpy_from_user(char *dst, const char __user *src, long count)
{
if (!access_ok(VERIFY_READ, src, 1))
return -EFAULT;
- return __strncpy_from_user(dst, src, count);
+ return __strncpy_user(dst, src, count);
}
/*
diff --git a/arch/microblaze/include/asm/ucontext.h b/arch/microblaze/include/asm/ucontext.h
deleted file mode 100644
index 9bc07b9f30fb..000000000000
--- a/arch/microblaze/include/asm/ucontext.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/ucontext.h>
diff --git a/arch/microblaze/include/asm/unistd.h b/arch/microblaze/include/asm/unistd.h
index 032fed71223f..9774e1d9507b 100644
--- a/arch/microblaze/include/asm/unistd.h
+++ b/arch/microblaze/include/asm/unistd.h
@@ -38,6 +38,6 @@
#endif /* __ASSEMBLY__ */
-#define __NR_syscalls 398
+#define __NR_syscalls 399
#endif /* _ASM_MICROBLAZE_UNISTD_H */
diff --git a/arch/microblaze/include/asm/vga.h b/arch/microblaze/include/asm/vga.h
deleted file mode 100644
index 89d82fd8fcf1..000000000000
--- a/arch/microblaze/include/asm/vga.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/vga.h>
diff --git a/arch/microblaze/include/asm/xor.h b/arch/microblaze/include/asm/xor.h
deleted file mode 100644
index c82eb12a5b18..000000000000
--- a/arch/microblaze/include/asm/xor.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/xor.h>
diff --git a/arch/microblaze/include/uapi/asm/Kbuild b/arch/microblaze/include/uapi/asm/Kbuild
index 2178c78c7c1a..06609ca36115 100644
--- a/arch/microblaze/include/uapi/asm/Kbuild
+++ b/arch/microblaze/include/uapi/asm/Kbuild
@@ -1,4 +1,29 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
+generic-y += siginfo.h
+generic-y += signal.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += swab.h
+generic-y += termbits.h
+generic-y += termios.h
generic-y += types.h
+generic-y += ucontext.h
diff --git a/arch/microblaze/include/uapi/asm/bitsperlong.h b/arch/microblaze/include/uapi/asm/bitsperlong.h
deleted file mode 100644
index 6dc0bb0c13b2..000000000000
--- a/arch/microblaze/include/uapi/asm/bitsperlong.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/bitsperlong.h>
diff --git a/arch/microblaze/include/uapi/asm/errno.h b/arch/microblaze/include/uapi/asm/errno.h
deleted file mode 100644
index 4c82b503d92f..000000000000
--- a/arch/microblaze/include/uapi/asm/errno.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/errno.h>
diff --git a/arch/microblaze/include/uapi/asm/fcntl.h b/arch/microblaze/include/uapi/asm/fcntl.h
deleted file mode 100644
index 46ab12db5739..000000000000
--- a/arch/microblaze/include/uapi/asm/fcntl.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/fcntl.h>
diff --git a/arch/microblaze/include/uapi/asm/ioctl.h b/arch/microblaze/include/uapi/asm/ioctl.h
deleted file mode 100644
index b279fe06dfe5..000000000000
--- a/arch/microblaze/include/uapi/asm/ioctl.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/ioctl.h>
diff --git a/arch/microblaze/include/uapi/asm/ioctls.h b/arch/microblaze/include/uapi/asm/ioctls.h
deleted file mode 100644
index ec34c760665e..000000000000
--- a/arch/microblaze/include/uapi/asm/ioctls.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/ioctls.h>
diff --git a/arch/microblaze/include/uapi/asm/ipcbuf.h b/arch/microblaze/include/uapi/asm/ipcbuf.h
deleted file mode 100644
index 84c7e51cb6d0..000000000000
--- a/arch/microblaze/include/uapi/asm/ipcbuf.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/ipcbuf.h>
diff --git a/arch/microblaze/include/uapi/asm/kvm_para.h b/arch/microblaze/include/uapi/asm/kvm_para.h
deleted file mode 100644
index 14fab8f0b957..000000000000
--- a/arch/microblaze/include/uapi/asm/kvm_para.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/kvm_para.h>
diff --git a/arch/microblaze/include/uapi/asm/mman.h b/arch/microblaze/include/uapi/asm/mman.h
deleted file mode 100644
index 8eebf89f5ab1..000000000000
--- a/arch/microblaze/include/uapi/asm/mman.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/mman.h>
diff --git a/arch/microblaze/include/uapi/asm/msgbuf.h b/arch/microblaze/include/uapi/asm/msgbuf.h
deleted file mode 100644
index 809134c644a6..000000000000
--- a/arch/microblaze/include/uapi/asm/msgbuf.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/msgbuf.h>
diff --git a/arch/microblaze/include/uapi/asm/param.h b/arch/microblaze/include/uapi/asm/param.h
deleted file mode 100644
index 965d45427975..000000000000
--- a/arch/microblaze/include/uapi/asm/param.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/param.h>
diff --git a/arch/microblaze/include/uapi/asm/poll.h b/arch/microblaze/include/uapi/asm/poll.h
deleted file mode 100644
index c98509d3149e..000000000000
--- a/arch/microblaze/include/uapi/asm/poll.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/poll.h>
diff --git a/arch/microblaze/include/uapi/asm/resource.h b/arch/microblaze/include/uapi/asm/resource.h
deleted file mode 100644
index 04bc4db8921b..000000000000
--- a/arch/microblaze/include/uapi/asm/resource.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/resource.h>
diff --git a/arch/microblaze/include/uapi/asm/sembuf.h b/arch/microblaze/include/uapi/asm/sembuf.h
deleted file mode 100644
index 7673b83cfef7..000000000000
--- a/arch/microblaze/include/uapi/asm/sembuf.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/sembuf.h>
diff --git a/arch/microblaze/include/uapi/asm/shmbuf.h b/arch/microblaze/include/uapi/asm/shmbuf.h
deleted file mode 100644
index 83c05fc2de38..000000000000
--- a/arch/microblaze/include/uapi/asm/shmbuf.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/shmbuf.h>
diff --git a/arch/microblaze/include/uapi/asm/siginfo.h b/arch/microblaze/include/uapi/asm/siginfo.h
deleted file mode 100644
index 0815d29d82e5..000000000000
--- a/arch/microblaze/include/uapi/asm/siginfo.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/siginfo.h>
diff --git a/arch/microblaze/include/uapi/asm/signal.h b/arch/microblaze/include/uapi/asm/signal.h
deleted file mode 100644
index 7b1573ce19de..000000000000
--- a/arch/microblaze/include/uapi/asm/signal.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/signal.h>
diff --git a/arch/microblaze/include/uapi/asm/socket.h b/arch/microblaze/include/uapi/asm/socket.h
deleted file mode 100644
index 6b71384b9d8b..000000000000
--- a/arch/microblaze/include/uapi/asm/socket.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/socket.h>
diff --git a/arch/microblaze/include/uapi/asm/sockios.h b/arch/microblaze/include/uapi/asm/sockios.h
deleted file mode 100644
index def6d4746ee7..000000000000
--- a/arch/microblaze/include/uapi/asm/sockios.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/sockios.h>
diff --git a/arch/microblaze/include/uapi/asm/stat.h b/arch/microblaze/include/uapi/asm/stat.h
deleted file mode 100644
index 3dc90fa92c70..000000000000
--- a/arch/microblaze/include/uapi/asm/stat.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/stat.h>
diff --git a/arch/microblaze/include/uapi/asm/statfs.h b/arch/microblaze/include/uapi/asm/statfs.h
deleted file mode 100644
index 0b91fe198c20..000000000000
--- a/arch/microblaze/include/uapi/asm/statfs.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/statfs.h>
diff --git a/arch/microblaze/include/uapi/asm/swab.h b/arch/microblaze/include/uapi/asm/swab.h
deleted file mode 100644
index 7847e563ab66..000000000000
--- a/arch/microblaze/include/uapi/asm/swab.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/swab.h>
diff --git a/arch/microblaze/include/uapi/asm/termbits.h b/arch/microblaze/include/uapi/asm/termbits.h
deleted file mode 100644
index 3935b106de79..000000000000
--- a/arch/microblaze/include/uapi/asm/termbits.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/termbits.h>
diff --git a/arch/microblaze/include/uapi/asm/termios.h b/arch/microblaze/include/uapi/asm/termios.h
deleted file mode 100644
index 280d78a9d966..000000000000
--- a/arch/microblaze/include/uapi/asm/termios.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/termios.h>
diff --git a/arch/microblaze/include/uapi/asm/unistd.h b/arch/microblaze/include/uapi/asm/unistd.h
index d8086159d996..a88b3c11cc20 100644
--- a/arch/microblaze/include/uapi/asm/unistd.h
+++ b/arch/microblaze/include/uapi/asm/unistd.h
@@ -413,5 +413,6 @@
#define __NR_pkey_mprotect 395
#define __NR_pkey_alloc 396
#define __NR_pkey_free 397
+#define __NR_statx 398
#endif /* _UAPI_ASM_MICROBLAZE_UNISTD_H */
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 12e093a03e60..94700c5270a9 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -65,8 +65,7 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
continue;
- __dma_sync(page_to_phys(sg_page(sg)) + sg->offset,
- sg->length, direction);
+ __dma_sync(sg_phys(sg), sg->length, direction);
}
return nents;
@@ -166,7 +165,7 @@ int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
unsigned long attrs)
{
#ifdef CONFIG_MMU
- unsigned long user_count = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+ unsigned long user_count = vma_pages(vma);
unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
unsigned long off = vma->vm_pgoff;
unsigned long pfn;
diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S
index ef548510b951..4e1b567becd6 100644
--- a/arch/microblaze/kernel/entry.S
+++ b/arch/microblaze/kernel/entry.S
@@ -208,9 +208,7 @@ syscall_debug_table:
mfs r11, rmsr; /* save MSR */ \
swi r11, r1, PT_MSR;
-#define RESTORE_REGS \
- lwi r11, r1, PT_MSR; \
- mts rmsr , r11; \
+#define RESTORE_REGS_GP \
lwi r2, r1, PT_R2; /* restore SDA */ \
lwi r3, r1, PT_R3; \
lwi r4, r1, PT_R4; \
@@ -242,6 +240,18 @@ syscall_debug_table:
lwi r30, r1, PT_R30; \
lwi r31, r1, PT_R31; /* Restore cur task reg */
+#define RESTORE_REGS \
+ lwi r11, r1, PT_MSR; \
+ mts rmsr , r11; \
+ RESTORE_REGS_GP
+
+#define RESTORE_REGS_RTBD \
+ lwi r11, r1, PT_MSR; \
+ andni r11, r11, MSR_EIP; /* clear EIP */ \
+ ori r11, r11, MSR_EE | MSR_BIP; /* set EE and BIP */ \
+ mts rmsr , r11; \
+ RESTORE_REGS_GP
+
#define SAVE_STATE \
swi r1, r0, TOPHYS(PER_CPU(ENTRY_SP)); /* save stack */ \
/* See if already in kernel mode.*/ \
@@ -427,7 +437,7 @@ C_ENTRY(ret_from_trap):
swi CURRENT_TASK, r0, PER_CPU(CURRENT_SAVE); /* save current */
VM_OFF;
tophys(r1,r1);
- RESTORE_REGS;
+ RESTORE_REGS_RTBD;
addik r1, r1, PT_SIZE /* Clean up stack space. */
lwi r1, r1, PT_R1 - PT_SIZE;/* Restore user stack pointer. */
bri 6f;
@@ -436,7 +446,7 @@ C_ENTRY(ret_from_trap):
2: set_bip; /* Ints masked for state restore */
VM_OFF;
tophys(r1,r1);
- RESTORE_REGS;
+ RESTORE_REGS_RTBD;
addik r1, r1, PT_SIZE /* Clean up stack space. */
tovirt(r1,r1);
6:
@@ -612,7 +622,7 @@ C_ENTRY(ret_from_exc):
VM_OFF;
tophys(r1,r1);
- RESTORE_REGS;
+ RESTORE_REGS_RTBD;
addik r1, r1, PT_SIZE /* Clean up stack space. */
lwi r1, r1, PT_R1 - PT_SIZE; /* Restore user stack pointer. */
@@ -621,7 +631,7 @@ C_ENTRY(ret_from_exc):
2: set_bip; /* Ints masked for state restore */
VM_OFF;
tophys(r1,r1);
- RESTORE_REGS;
+ RESTORE_REGS_RTBD;
addik r1, r1, PT_SIZE /* Clean up stack space. */
tovirt(r1,r1);
@@ -847,7 +857,7 @@ dbtrap_call: /* Return point for kernel/user entry + 8 because of rtsd r15, 8 */
VM_OFF;
tophys(r1,r1);
/* MS: Restore all regs */
- RESTORE_REGS
+ RESTORE_REGS_RTBD
addik r1, r1, PT_SIZE /* Clean up stack space */
lwi r1, r1, PT_R1 - PT_SIZE; /* Restore user stack pointer */
DBTRAP_return_user: /* MS: Make global symbol for debugging */
@@ -858,7 +868,7 @@ DBTRAP_return_user: /* MS: Make global symbol for debugging */
2: VM_OFF;
tophys(r1,r1);
/* MS: Restore all regs */
- RESTORE_REGS
+ RESTORE_REGS_RTBD
lwi r14, r1, PT_R14;
lwi r16, r1, PT_PC;
addik r1, r1, PT_SIZE; /* MS: Clean up stack space */
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c
index f31ebb5dc26c..be98ffe28ca8 100644
--- a/arch/microblaze/kernel/setup.c
+++ b/arch/microblaze/kernel/setup.c
@@ -192,7 +192,7 @@ void __init time_init(void)
{
of_clk_init(NULL);
setup_cpuinfo_clk();
- clocksource_probe();
+ timer_probe();
}
#ifdef CONFIG_DEBUG_FS
diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S
index 6841c2df14d9..c48ff4ad2070 100644
--- a/arch/microblaze/kernel/syscall_table.S
+++ b/arch/microblaze/kernel/syscall_table.S
@@ -398,3 +398,4 @@ ENTRY(sys_call_table)
.long sys_pkey_mprotect /* 395 */
.long sys_pkey_alloc
.long sys_pkey_free
+ .long sys_statx
diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c
index 999066192715..7de941cbbd94 100644
--- a/arch/microblaze/kernel/timer.c
+++ b/arch/microblaze/kernel/timer.c
@@ -178,8 +178,10 @@ static __init int xilinx_clockevent_init(void)
clockevent_xilinx_timer.shift);
clockevent_xilinx_timer.max_delta_ns =
clockevent_delta2ns((u32)~0, &clockevent_xilinx_timer);
+ clockevent_xilinx_timer.max_delta_ticks = (u32)~0;
clockevent_xilinx_timer.min_delta_ns =
clockevent_delta2ns(1, &clockevent_xilinx_timer);
+ clockevent_xilinx_timer.min_delta_ticks = 1;
clockevent_xilinx_timer.cpumask = cpumask_of(0);
clockevents_register_device(&clockevent_xilinx_timer);
@@ -291,7 +293,7 @@ static int __init xilinx_timer_init(struct device_node *timer)
return -EINVAL;
}
- pr_info("%s: irq=%d\n", timer->full_name, irq);
+ pr_info("%pOF: irq=%d\n", timer, irq);
clk = of_clk_get(timer, 0);
if (IS_ERR(clk)) {
@@ -333,5 +335,5 @@ static int __init xilinx_timer_init(struct device_node *timer)
return 0;
}
-CLOCKSOURCE_OF_DECLARE(xilinx_timer, "xlnx,xps-timer-1.00.a",
+TIMER_OF_DECLARE(xilinx_timer, "xlnx,xps-timer-1.00.a",
xilinx_timer_init);
diff --git a/arch/microblaze/mm/highmem.c b/arch/microblaze/mm/highmem.c
index 2fcc5a52d84d..ed4454c5ce35 100644
--- a/arch/microblaze/mm/highmem.c
+++ b/arch/microblaze/mm/highmem.c
@@ -60,6 +60,7 @@ void __kunmap_atomic(void *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
int type;
+ unsigned int idx;
if (vaddr < __fix_to_virt(FIX_KMAP_END)) {
pagefault_enable();
@@ -68,21 +69,18 @@ void __kunmap_atomic(void *kvaddr)
}
type = kmap_atomic_idx();
-#ifdef CONFIG_DEBUG_HIGHMEM
- {
- unsigned int idx;
-
- idx = type + KM_TYPE_NR * smp_processor_id();
- BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(&init_mm, vaddr, kmap_pte-idx);
- local_flush_tlb_page(NULL, vaddr);
- }
+ idx = type + KM_TYPE_NR * smp_processor_id();
+#ifdef CONFIG_DEBUG_HIGHMEM
+ BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
#endif
+ /*
+ * force other mappings to Oops if they'll try to access
+ * this pte without first remap it
+ */
+ pte_clear(&init_mm, vaddr, kmap_pte-idx);
+ local_flush_tlb_page(NULL, vaddr);
+
kmap_atomic_idx_pop();
pagefault_enable();
preempt_enable();
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index 404fb38d06b7..ae79e8638d50 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -508,8 +508,8 @@ void pci_process_bridge_OF_ranges(struct pci_controller *hose,
struct of_pci_range range;
struct of_pci_range_parser parser;
- pr_info("PCI host bridge %s %s ranges:\n",
- dev->full_name, primary ? "(primary)" : "");
+ pr_info("PCI host bridge %pOF %s ranges:\n",
+ dev, primary ? "(primary)" : "");
/* Check for ranges property */
if (of_pci_range_parser_init(&parser, dev))
@@ -678,144 +678,6 @@ static void pcibios_fixup_resources(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pcibios_fixup_resources);
-/* This function tries to figure out if a bridge resource has been initialized
- * by the firmware or not. It doesn't have to be absolutely bullet proof, but
- * things go more smoothly when it gets it right. It should covers cases such
- * as Apple "closed" bridge resources and bare-metal pSeries unassigned bridges
- */
-static int pcibios_uninitialized_bridge_resource(struct pci_bus *bus,
- struct resource *res)
-{
- struct pci_controller *hose = pci_bus_to_host(bus);
- struct pci_dev *dev = bus->self;
- resource_size_t offset;
- u16 command;
- int i;
-
- /* Job is a bit different between memory and IO */
- if (res->flags & IORESOURCE_MEM) {
- /* If the BAR is non-0 (res != pci_mem_offset) then it's
- * probably been initialized by somebody
- */
- if (res->start != hose->pci_mem_offset)
- return 0;
-
- /* The BAR is 0, let's check if memory decoding is enabled on
- * the bridge. If not, we consider it unassigned
- */
- pci_read_config_word(dev, PCI_COMMAND, &command);
- if ((command & PCI_COMMAND_MEMORY) == 0)
- return 1;
-
- /* Memory decoding is enabled and the BAR is 0. If any of
- * the bridge resources covers that starting address (0 then
- * it's good enough for us for memory
- */
- for (i = 0; i < 3; i++) {
- if ((hose->mem_resources[i].flags & IORESOURCE_MEM) &&
- hose->mem_resources[i].start == hose->pci_mem_offset)
- return 0;
- }
-
- /* Well, it starts at 0 and we know it will collide so we may as
- * well consider it as unassigned. That covers the Apple case.
- */
- return 1;
- } else {
- /* If the BAR is non-0, then we consider it assigned */
- offset = (unsigned long)hose->io_base_virt - _IO_BASE;
- if (((res->start - offset) & 0xfffffffful) != 0)
- return 0;
-
- /* Here, we are a bit different than memory as typically IO
- * space starting at low addresses -is- valid. What we do
- * instead if that we consider as unassigned anything that
- * doesn't have IO enabled in the PCI command register,
- * and that's it.
- */
- pci_read_config_word(dev, PCI_COMMAND, &command);
- if (command & PCI_COMMAND_IO)
- return 0;
-
- /* It's starting at 0 and IO is disabled in the bridge, consider
- * it unassigned
- */
- return 1;
- }
-}
-
-/* Fixup resources of a PCI<->PCI bridge */
-static void pcibios_fixup_bridge(struct pci_bus *bus)
-{
- struct resource *res;
- int i;
-
- struct pci_dev *dev = bus->self;
-
- pci_bus_for_each_resource(bus, res, i) {
- if (!res)
- continue;
- if (!res->flags)
- continue;
- if (i >= 3 && bus->self->transparent)
- continue;
-
- pr_debug("PCI:%s Bus rsrc %d %016llx-%016llx [%x] fixup...\n",
- pci_name(dev), i,
- (unsigned long long)res->start,
- (unsigned long long)res->end,
- (unsigned int)res->flags);
-
- /* Try to detect uninitialized P2P bridge resources,
- * and clear them out so they get re-assigned later
- */
- if (pcibios_uninitialized_bridge_resource(bus, res)) {
- res->flags = 0;
- pr_debug("PCI:%s (unassigned)\n",
- pci_name(dev));
- } else {
- pr_debug("PCI:%s %016llx-%016llx\n",
- pci_name(dev),
- (unsigned long long)res->start,
- (unsigned long long)res->end);
- }
- }
-}
-
-void pcibios_setup_bus_self(struct pci_bus *bus)
-{
- /* Fix up the bus resources for P2P bridges */
- if (bus->self != NULL)
- pcibios_fixup_bridge(bus);
-}
-
-void pcibios_setup_bus_devices(struct pci_bus *bus)
-{
- struct pci_dev *dev;
-
- pr_debug("PCI: Fixup bus devices %d (%s)\n",
- bus->number, bus->self ? pci_name(bus->self) : "PHB");
-
- list_for_each_entry(dev, &bus->devices, bus_list) {
- /* Setup OF node pointer in archdata */
- dev->dev.of_node = pci_device_to_OF_node(dev);
-
- /* Fixup NUMA node as it may not be setup yet by the generic
- * code and is needed by the DMA init
- */
- set_dev_node(&dev->dev, pcibus_to_node(dev->bus));
-
- /* Read default IRQs and fixup if necessary */
- dev->irq = of_irq_parse_and_map_pci(dev, 0, 0);
- }
-}
-
-void pcibios_fixup_bus(struct pci_bus *bus)
-{
- /* nothing to do */
-}
-EXPORT_SYMBOL(pcibios_fixup_bus);
-
/*
* We need to avoid collisions with `mirrored' VGA ports
* and other strange ISA hardware, so we always want the
@@ -829,13 +691,6 @@ EXPORT_SYMBOL(pcibios_fixup_bus);
* but we want to try to avoid allocating at 0x2900-0x2bff
* which might have be mirrored at 0x0100-0x03ff..
*/
-resource_size_t pcibios_align_resource(void *data, const struct resource *res,
- resource_size_t size, resource_size_t align)
-{
- return res->start;
-}
-EXPORT_SYMBOL(pcibios_align_resource);
-
int pcibios_add_device(struct pci_dev *dev)
{
dev->irq = of_irq_parse_and_map_pci(dev, 0, 0);
@@ -1219,8 +1074,8 @@ static void pcibios_setup_phb_resources(struct pci_controller *hose,
if (!res->flags) {
pr_warn("PCI: I/O resource not set for host ");
- pr_cont("bridge %s (domain %d)\n",
- hose->dn->full_name, hose->global_number);
+ pr_cont("bridge %pOF (domain %d)\n",
+ hose->dn, hose->global_number);
/* Workaround for lack of IO resource only on 32-bit */
res->start = (unsigned long)hose->io_base_virt - isa_io_base;
res->end = res->start + IO_SPACE_LIMIT;
@@ -1241,8 +1096,8 @@ static void pcibios_setup_phb_resources(struct pci_controller *hose,
if (i > 0)
continue;
pr_err("PCI: Memory resource 0 not set for ");
- pr_cont("host bridge %s (domain %d)\n",
- hose->dn->full_name, hose->global_number);
+ pr_cont("host bridge %pOF (domain %d)\n",
+ hose->dn, hose->global_number);
/* Workaround for lack of MEM resource only on 32-bit */
res->start = hose->pci_mem_offset;
@@ -1270,7 +1125,7 @@ static void pcibios_scan_phb(struct pci_controller *hose)
struct pci_bus *bus;
struct device_node *node = hose->dn;
- pr_debug("PCI: Scanning PHB %s\n", of_node_full_name(node));
+ pr_debug("PCI: Scanning PHB %pOF\n", node);
pcibios_setup_phb_resources(hose, &resources);
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 2828ecde133d..cb7fcc4216fd 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1,75 +1,77 @@
config MIPS
bool
default y
- select ARCH_SUPPORTS_UPROBES
+ select ARCH_BINFMT_ELF_STATE
+ select ARCH_CLOCKSOURCE_DATA
+ select ARCH_DISCARD_MEMBLOCK
+ select ARCH_HAS_ELF_RANDOMIZE
+ select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
- select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
+ select ARCH_SUPPORTS_UPROBES
select ARCH_USE_BUILTIN_BSWAP
- select HAVE_CONTEXT_TRACKING
- select HAVE_GENERIC_DMA_COHERENT
- select HAVE_IDE
- select HAVE_IRQ_EXIT_ON_IRQ_STACK
- select HAVE_OPROFILE
- select HAVE_PERF_EVENTS
- select PERF_USE_VMALLOC
+ select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
+ select ARCH_USE_QUEUED_RWLOCKS
+ select ARCH_USE_QUEUED_SPINLOCKS
+ select ARCH_WANT_IPC_PARSE_VERSION
+ select BUILDTIME_EXTABLE_SORT
+ select CLONE_BACKWARDS
+ select CPU_PM if CPU_IDLE
+ select GENERIC_ATOMIC64 if !64BIT
+ select GENERIC_CLOCKEVENTS
+ select GENERIC_CMOS_UPDATE
+ select GENERIC_CPU_AUTOPROBE
+ select GENERIC_IRQ_PROBE
+ select GENERIC_IRQ_SHOW
+ select GENERIC_PCI_IOMAP
+ select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
+ select GENERIC_SMP_IDLE_THREAD
+ select GENERIC_TIME_VSYSCALL
+ select HANDLE_DOMAIN_IRQ
+ select HAVE_ARCH_JUMP_LABEL
select HAVE_ARCH_KGDB
select HAVE_ARCH_MMAP_RND_BITS if MMU
select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ARCH_TRACEHOOK
- select HAVE_CBPF_JIT if !CPU_MICROMIPS
- select HAVE_FUNCTION_TRACER
+ select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
+ select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS)
+ select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS)
+ select HAVE_CC_STACKPROTECTOR
+ select HAVE_CONTEXT_TRACKING
+ select HAVE_COPY_THREAD_TLS
+ select HAVE_C_RECORDMCOUNT
+ select HAVE_DEBUG_KMEMLEAK
+ select HAVE_DEBUG_STACKOVERFLOW
+ select HAVE_DMA_API_DEBUG
+ select HAVE_DMA_CONTIGUOUS
select HAVE_DYNAMIC_FTRACE
+ select HAVE_EXIT_THREAD
select HAVE_FTRACE_MCOUNT_RECORD
- select HAVE_C_RECORDMCOUNT
select HAVE_FUNCTION_GRAPH_TRACER
+ select HAVE_FUNCTION_TRACER
+ select HAVE_GENERIC_DMA_COHERENT
+ select HAVE_IDE
+ select HAVE_IRQ_EXIT_ON_IRQ_STACK
+ select HAVE_IRQ_TIME_ACCOUNTING
select HAVE_KPROBES
select HAVE_KRETPROBES
- select HAVE_SYSCALL_TRACEPOINTS
- select HAVE_DEBUG_KMEMLEAK
- select HAVE_SYSCALL_TRACEPOINTS
- select ARCH_HAS_ELF_RANDOMIZE
- select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
- select RTC_LIB if !MACH_LOONGSON64
- select GENERIC_ATOMIC64 if !64BIT
- select HAVE_DMA_CONTIGUOUS
- select HAVE_DMA_API_DEBUG
- select GENERIC_IRQ_PROBE
- select GENERIC_IRQ_SHOW
- select GENERIC_PCI_IOMAP
- select HAVE_ARCH_JUMP_LABEL
- select ARCH_WANT_IPC_PARSE_VERSION
- select IRQ_FORCED_THREADING
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
- select ARCH_DISCARD_MEMBLOCK
- select GENERIC_SMP_IDLE_THREAD
- select BUILDTIME_EXTABLE_SORT
- select GENERIC_CPU_AUTOPROBE
- select GENERIC_CLOCKEVENTS
- select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
- select GENERIC_CMOS_UPDATE
select HAVE_MOD_ARCH_SPECIFIC
select HAVE_NMI
- select VIRT_TO_BUS
- select MODULES_USE_ELF_REL if MODULES
+ select HAVE_OPROFILE
+ select HAVE_PERF_EVENTS
+ select HAVE_REGS_AND_STACK_ACCESS_API
+ select HAVE_SYSCALL_TRACEPOINTS
+ select HAVE_VIRT_CPU_ACCOUNTING_GEN
+ select IRQ_FORCED_THREADING
select MODULES_USE_ELF_RELA if MODULES && 64BIT
- select CLONE_BACKWARDS
- select HAVE_DEBUG_STACKOVERFLOW
- select HAVE_CC_STACKPROTECTOR
- select CPU_PM if CPU_IDLE
- select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
- select ARCH_BINFMT_ELF_STATE
+ select MODULES_USE_ELF_REL if MODULES
+ select PERF_USE_VMALLOC
+ select RTC_LIB if !MACH_LOONGSON64
select SYSCTL_EXCEPTION_TRACE
- select HAVE_VIRT_CPU_ACCOUNTING_GEN
- select HAVE_IRQ_TIME_ACCOUNTING
- select GENERIC_TIME_VSYSCALL
- select ARCH_CLOCKSOURCE_DATA
- select HANDLE_DOMAIN_IRQ
- select HAVE_EXIT_THREAD
- select HAVE_REGS_AND_STACK_ACCESS_API
- select HAVE_COPY_THREAD_TLS
+ select VIRT_TO_BUS
menu "Machine selection"
@@ -364,6 +366,7 @@ config MACH_INGENIC
select SYS_SUPPORTS_ZBOOT_UART16550
select DMA_NONCOHERENT
select IRQ_MIPS_CPU
+ select PINCTRL
select GPIOLIB
select COMMON_CLK
select GENERIC_IRQ_CHIP
@@ -1178,6 +1181,15 @@ config SYS_SUPPORTS_RELOCATABLE
The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
to allow access to command line and entropy sources.
+config MIPS_CBPF_JIT
+ def_bool y
+ depends on BPF_JIT && HAVE_CBPF_JIT
+
+config MIPS_EBPF_JIT
+ def_bool y
+ depends on BPF_JIT && HAVE_EBPF_JIT
+
+
#
# Endianness selection. Sufficiently obscure so many users don't know what to
# answer,so we try hard to limit the available choices. Also the use of a
@@ -1615,14 +1627,6 @@ config CPU_R5500
NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
instruction set.
-config CPU_R6000
- bool "R6000"
- depends on SYS_HAS_CPU_R6000
- select CPU_SUPPORTS_32BIT_KERNEL
- help
- MIPS Technologies R6000 and R6000A series processors. Note these
- processors are extremely rare and the support for them is incomplete.
-
config CPU_NEVADA
bool "RM52xx"
depends on SYS_HAS_CPU_NEVADA
@@ -1938,9 +1942,6 @@ config SYS_HAS_CPU_R5432
config SYS_HAS_CPU_R5500
bool
-config SYS_HAS_CPU_R6000
- bool
-
config SYS_HAS_CPU_NEVADA
bool
@@ -2061,7 +2062,7 @@ config CPU_SUPPORTS_UNCACHED_ACCELERATED
bool
config MIPS_PGD_C0_CONTEXT
bool
- default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
+ default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
#
# Set to y for ptrace access to watch registers.
@@ -2168,7 +2169,7 @@ config PAGE_SIZE_32KB
config PAGE_SIZE_64KB
bool "64kB"
- depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000
+ depends on !CPU_R3000 && !CPU_TX39XX
help
Using 64kB page size will result in higher performance kernel at
the price of higher memory consumption. This option is available on
@@ -2236,11 +2237,11 @@ config CPU_HAS_PREFETCH
config CPU_GENERIC_DUMP_TLB
bool
- default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
+ default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
config CPU_R4K_FPU
bool
- default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
+ default y if !(CPU_R3000 || CPU_TX39XX)
config CPU_R4K_CACHE_TLB
bool
@@ -2248,7 +2249,8 @@ config CPU_R4K_CACHE_TLB
config MIPS_MT_SMP
bool "MIPS MT SMP support (1 TC on each available VPE)"
- depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
+ default y
+ depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
select CPU_MIPSR2_IRQ_VI
select CPU_MIPSR2_IRQ_EI
select SYNC_R4K
@@ -2364,11 +2366,11 @@ config MIPS_CPS
bool "MIPS Coherent Processing System support"
depends on SYS_SUPPORTS_MIPS_CPS
select MIPS_CM
- select MIPS_CPC
select MIPS_CPS_PM if HOTPLUG_CPU
select SMP
select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
select SYS_SUPPORTS_HOTPLUG_CPU
+ select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
select SYS_SUPPORTS_SMP
select WEAK_ORDERING
help
@@ -2380,11 +2382,11 @@ config MIPS_CPS
config MIPS_CPS_PM
depends on MIPS_CPS
- select MIPS_CPC
bool
config MIPS_CM
bool
+ select MIPS_CPC
config MIPS_CPC
bool
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 02a1787c888c..a96d97a806c9 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -151,7 +151,6 @@ cflags-y += -fno-stack-check
#
cflags-$(CONFIG_CPU_R3000) += -march=r3000
cflags-$(CONFIG_CPU_TX39XX) += -march=r3900
-cflags-$(CONFIG_CPU_R6000) += -march=r6000 -Wa,--trap
cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap
cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap
cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap
@@ -160,7 +159,7 @@ cflags-$(CONFIG_CPU_MIPS32_R1) += $(call cc-option,-march=mips32,-mips32 -U_MIPS
-Wa,-mips32 -Wa,--trap
cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
-Wa,-mips32r2 -Wa,--trap
-cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap
+cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg
cflags-$(CONFIG_CPU_MIPS64_R1) += $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
-Wa,-mips64 -Wa,--trap
cflags-$(CONFIG_CPU_MIPS64_R2) += $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
@@ -243,8 +242,21 @@ include arch/mips/Kbuild.platforms
ifdef CONFIG_PHYSICAL_START
load-y = $(CONFIG_PHYSICAL_START)
endif
-entry-y = 0x$(shell $(NM) vmlinux 2>/dev/null \
+
+entry-noisa-y = 0x$(shell $(NM) vmlinux 2>/dev/null \
| grep "\bkernel_entry\b" | cut -f1 -d \ )
+ifdef CONFIG_CPU_MICROMIPS
+ #
+ # Set the ISA bit, since the kernel_entry symbol in the ELF will have it
+ # clear which would lead to images containing addresses which bootloaders may
+ # jump to as MIPS32 code.
+ #
+ entry-y = $(patsubst %0,%1,$(patsubst %2,%3,$(patsubst %4,%5, \
+ $(patsubst %6,%7,$(patsubst %8,%9,$(patsubst %a,%b, \
+ $(patsubst %c,%d,$(patsubst %e,%f,$(entry-noisa-y)))))))))
+else
+ entry-y = $(entry-noisa-y)
+endif
cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic
drivers-$(CONFIG_PCI) += arch/mips/pci/
@@ -278,7 +290,8 @@ KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \
VMLINUX_ENTRY_ADDRESS=$(entry-y) \
- PLATFORM="$(platform-y)"
+ PLATFORM="$(platform-y)" \
+ ITS_INPUTS="$(its-y)"
ifdef CONFIG_32BIT
bootvars-y += ADDR_BITS=32
endif
@@ -286,6 +299,10 @@ ifdef CONFIG_64BIT
bootvars-y += ADDR_BITS=64
endif
+# This is required to get dwarf unwinding tables into .debug_frame
+# instead of .eh_frame so we don't discard them.
+KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
+
LDFLAGS += -m $(ld-emul)
ifdef CONFIG_MIPS
@@ -487,8 +504,14 @@ $(eval $(call gen_generic_defconfigs,micro32,r2,eb el))
.PHONY: $(generic_defconfigs)
$(generic_defconfigs):
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
- -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ \
- $(foreach board,$(BOARDS),$(generic_config_dir)/board-$(board).config)
+ -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \
+ grep -Ev '^#'
+ $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@
+ $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \
+ KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null
+ $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \
+ $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \
+ "$(origin BOARDS)" $(BOARDS)
$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
#
@@ -497,6 +520,19 @@ $(generic_defconfigs):
$(generic_config_dir)/%.config: ;
#
+# Prevent direct use of generic_defconfig, which is intended to be used as the
+# basis of the various ISA-specific targets generated above.
+#
+.PHONY: generic_defconfig
+generic_defconfig:
+ $(Q)echo "generic_defconfig is not intended for direct use, but should instead be"
+ $(Q)echo "used via an ISA-specific target from the following list:"
+ $(Q)echo
+ $(Q)for cfg in $(generic_defconfigs); do echo " $${cfg}"; done
+ $(Q)echo
+ $(Q)false
+
+#
# Legacy defconfig compatibility - these targets used to be real defconfigs but
# now that the boards have been converted to use the generic kernel they are
# wrappers around the generic rules above.
diff --git a/arch/mips/alchemy/devboards/db1200.c b/arch/mips/alchemy/devboards/db1200.c
index 992442a03d8b..da7663770425 100644
--- a/arch/mips/alchemy/devboards/db1200.c
+++ b/arch/mips/alchemy/devboards/db1200.c
@@ -29,7 +29,7 @@
#include <linux/leds.h>
#include <linux/mmc/host.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
@@ -344,28 +344,32 @@ static struct platform_device db1200_ide_dev = {
/* SD carddetects: they're supposed to be edge-triggered, but ack
* doesn't seem to work (CPLD Rev 2). Instead, the screaming one
- * is disabled and its counterpart enabled. The 500ms timeout is
- * because the carddetect isn't debounced in hardware.
+ * is disabled and its counterpart enabled. The 200ms timeout is
+ * because the carddetect usually triggers twice, after debounce.
*/
static irqreturn_t db1200_mmc_cd(int irq, void *ptr)
{
- void(*mmc_cd)(struct mmc_host *, unsigned long);
+ disable_irq_nosync(irq);
+ return IRQ_WAKE_THREAD;
+}
- if (irq == DB1200_SD0_INSERT_INT) {
- disable_irq_nosync(DB1200_SD0_INSERT_INT);
- enable_irq(DB1200_SD0_EJECT_INT);
- } else {
- disable_irq_nosync(DB1200_SD0_EJECT_INT);
- enable_irq(DB1200_SD0_INSERT_INT);
- }
+static irqreturn_t db1200_mmc_cdfn(int irq, void *ptr)
+{
+ void (*mmc_cd)(struct mmc_host *, unsigned long);
/* link against CONFIG_MMC=m */
mmc_cd = symbol_get(mmc_detect_change);
if (mmc_cd) {
- mmc_cd(ptr, msecs_to_jiffies(500));
+ mmc_cd(ptr, msecs_to_jiffies(200));
symbol_put(mmc_detect_change);
}
+ msleep(100); /* debounce */
+ if (irq == DB1200_SD0_INSERT_INT)
+ enable_irq(DB1200_SD0_EJECT_INT);
+ else
+ enable_irq(DB1200_SD0_INSERT_INT);
+
return IRQ_HANDLED;
}
@@ -374,13 +378,13 @@ static int db1200_mmc_cd_setup(void *mmc_host, int en)
int ret;
if (en) {
- ret = request_irq(DB1200_SD0_INSERT_INT, db1200_mmc_cd,
- 0, "sd_insert", mmc_host);
+ ret = request_threaded_irq(DB1200_SD0_INSERT_INT, db1200_mmc_cd,
+ db1200_mmc_cdfn, 0, "sd_insert", mmc_host);
if (ret)
goto out;
- ret = request_irq(DB1200_SD0_EJECT_INT, db1200_mmc_cd,
- 0, "sd_eject", mmc_host);
+ ret = request_threaded_irq(DB1200_SD0_EJECT_INT, db1200_mmc_cd,
+ db1200_mmc_cdfn, 0, "sd_eject", mmc_host);
if (ret) {
free_irq(DB1200_SD0_INSERT_INT, mmc_host);
goto out;
@@ -436,23 +440,27 @@ static struct led_classdev db1200_mmc_led = {
static irqreturn_t pb1200_mmc1_cd(int irq, void *ptr)
{
- void(*mmc_cd)(struct mmc_host *, unsigned long);
+ disable_irq_nosync(irq);
+ return IRQ_WAKE_THREAD;
+}
- if (irq == PB1200_SD1_INSERT_INT) {
- disable_irq_nosync(PB1200_SD1_INSERT_INT);
- enable_irq(PB1200_SD1_EJECT_INT);
- } else {
- disable_irq_nosync(PB1200_SD1_EJECT_INT);
- enable_irq(PB1200_SD1_INSERT_INT);
- }
+static irqreturn_t pb1200_mmc1_cdfn(int irq, void *ptr)
+{
+ void (*mmc_cd)(struct mmc_host *, unsigned long);
/* link against CONFIG_MMC=m */
mmc_cd = symbol_get(mmc_detect_change);
if (mmc_cd) {
- mmc_cd(ptr, msecs_to_jiffies(500));
+ mmc_cd(ptr, msecs_to_jiffies(200));
symbol_put(mmc_detect_change);
}
+ msleep(100); /* debounce */
+ if (irq == PB1200_SD1_INSERT_INT)
+ enable_irq(PB1200_SD1_EJECT_INT);
+ else
+ enable_irq(PB1200_SD1_INSERT_INT);
+
return IRQ_HANDLED;
}
@@ -461,13 +469,13 @@ static int pb1200_mmc1_cd_setup(void *mmc_host, int en)
int ret;
if (en) {
- ret = request_irq(PB1200_SD1_INSERT_INT, pb1200_mmc1_cd, 0,
- "sd1_insert", mmc_host);
+ ret = request_threaded_irq(PB1200_SD1_INSERT_INT, pb1200_mmc1_cd,
+ pb1200_mmc1_cdfn, 0, "sd1_insert", mmc_host);
if (ret)
goto out;
- ret = request_irq(PB1200_SD1_EJECT_INT, pb1200_mmc1_cd, 0,
- "sd1_eject", mmc_host);
+ ret = request_threaded_irq(PB1200_SD1_EJECT_INT, pb1200_mmc1_cd,
+ pb1200_mmc1_cdfn, 0, "sd1_eject", mmc_host);
if (ret) {
free_irq(PB1200_SD1_INSERT_INT, mmc_host);
goto out;
diff --git a/arch/mips/alchemy/devboards/db1300.c b/arch/mips/alchemy/devboards/db1300.c
index a5504f57cb00..cd1ae29f95a3 100644
--- a/arch/mips/alchemy/devboards/db1300.c
+++ b/arch/mips/alchemy/devboards/db1300.c
@@ -18,7 +18,7 @@
#include <linux/mmc/host.h>
#include <linux/module.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/platform_device.h>
#include <linux/smsc911x.h>
@@ -450,24 +450,27 @@ static struct platform_device db1300_ide_dev = {
static irqreturn_t db1300_mmc_cd(int irq, void *ptr)
{
- void(*mmc_cd)(struct mmc_host *, unsigned long);
+ disable_irq_nosync(irq);
+ return IRQ_WAKE_THREAD;
+}
- /* disable the one currently screaming. No other way to shut it up */
- if (irq == DB1300_SD1_INSERT_INT) {
- disable_irq_nosync(DB1300_SD1_INSERT_INT);
- enable_irq(DB1300_SD1_EJECT_INT);
- } else {
- disable_irq_nosync(DB1300_SD1_EJECT_INT);
- enable_irq(DB1300_SD1_INSERT_INT);
- }
+static irqreturn_t db1300_mmc_cdfn(int irq, void *ptr)
+{
+ void (*mmc_cd)(struct mmc_host *, unsigned long);
/* link against CONFIG_MMC=m. We can only be called once MMC core has
* initialized the controller, so symbol_get() should always succeed.
*/
mmc_cd = symbol_get(mmc_detect_change);
- mmc_cd(ptr, msecs_to_jiffies(500));
+ mmc_cd(ptr, msecs_to_jiffies(200));
symbol_put(mmc_detect_change);
+ msleep(100); /* debounce */
+ if (irq == DB1300_SD1_INSERT_INT)
+ enable_irq(DB1300_SD1_EJECT_INT);
+ else
+ enable_irq(DB1300_SD1_INSERT_INT);
+
return IRQ_HANDLED;
}
@@ -487,13 +490,13 @@ static int db1300_mmc_cd_setup(void *mmc_host, int en)
int ret;
if (en) {
- ret = request_irq(DB1300_SD1_INSERT_INT, db1300_mmc_cd, 0,
- "sd_insert", mmc_host);
+ ret = request_threaded_irq(DB1300_SD1_INSERT_INT, db1300_mmc_cd,
+ db1300_mmc_cdfn, 0, "sd_insert", mmc_host);
if (ret)
goto out;
- ret = request_irq(DB1300_SD1_EJECT_INT, db1300_mmc_cd, 0,
- "sd_eject", mmc_host);
+ ret = request_threaded_irq(DB1300_SD1_EJECT_INT, db1300_mmc_cd,
+ db1300_mmc_cdfn, 0, "sd_eject", mmc_host);
if (ret) {
free_irq(DB1300_SD1_INSERT_INT, mmc_host);
goto out;
diff --git a/arch/mips/alchemy/devboards/db1550.c b/arch/mips/alchemy/devboards/db1550.c
index 1c01d6eadb08..421bd5793f7e 100644
--- a/arch/mips/alchemy/devboards/db1550.c
+++ b/arch/mips/alchemy/devboards/db1550.c
@@ -12,7 +12,7 @@
#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
diff --git a/arch/mips/alchemy/devboards/db1xxx.c b/arch/mips/alchemy/devboards/db1xxx.c
index 2d47f951121a..c9ad28995cd2 100644
--- a/arch/mips/alchemy/devboards/db1xxx.c
+++ b/arch/mips/alchemy/devboards/db1xxx.c
@@ -2,6 +2,7 @@
* Alchemy DB/PB1xxx board support.
*/
+#include <asm/prom.h>
#include <asm/mach-au1x00/au1000.h>
#include <asm/mach-db1x00/bcsr.h>
@@ -97,6 +98,7 @@ arch_initcall(db1xxx_arch_init);
static int __init db1xxx_dev_init(void)
{
+ mips_set_machine_name(board_type_str());
switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
case BCSR_WHOAMI_DB1000:
case BCSR_WHOAMI_DB1500:
diff --git a/arch/mips/ar7/clock.c b/arch/mips/ar7/clock.c
index dda422a0f36c..0137656107a9 100644
--- a/arch/mips/ar7/clock.c
+++ b/arch/mips/ar7/clock.c
@@ -430,6 +430,9 @@ EXPORT_SYMBOL(clk_disable);
unsigned long clk_get_rate(struct clk *clk)
{
+ if (!clk)
+ return 0;
+
return clk->rate;
}
EXPORT_SYMBOL(clk_get_rate);
diff --git a/arch/mips/ath79/clock.c b/arch/mips/ath79/clock.c
index fa845953f736..6b1000b6a6a6 100644
--- a/arch/mips/ath79/clock.c
+++ b/arch/mips/ath79/clock.c
@@ -487,17 +487,16 @@ static void __init ath79_clocks_init_dt_ng(struct device_node *np)
{
struct clk *ref_clk;
void __iomem *pll_base;
- const char *dnfn = of_node_full_name(np);
ref_clk = of_clk_get(np, 0);
if (IS_ERR(ref_clk)) {
- pr_err("%s: of_clk_get failed\n", dnfn);
+ pr_err("%pOF: of_clk_get failed\n", np);
goto err;
}
pll_base = of_iomap(np, 0);
if (!pll_base) {
- pr_err("%s: can't map pll registers\n", dnfn);
+ pr_err("%pOF: can't map pll registers\n", np);
goto err_clk;
}
@@ -506,12 +505,12 @@ static void __init ath79_clocks_init_dt_ng(struct device_node *np)
else if (of_device_is_compatible(np, "qca,ar9330-pll"))
ar9330_clk_init(ref_clk, pll_base);
else {
- pr_err("%s: could not find any appropriate clk_init()\n", dnfn);
+ pr_err("%pOF: could not find any appropriate clk_init()\n", np);
goto err_iounmap;
}
if (of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data)) {
- pr_err("%s: could not register clk provider\n", dnfn);
+ pr_err("%pOF: could not register clk provider\n", np);
goto err_iounmap;
}
diff --git a/arch/mips/ath79/mach-pb44.c b/arch/mips/ath79/mach-pb44.c
index 67b980d94fb7..be78298dffb4 100644
--- a/arch/mips/ath79/mach-pb44.c
+++ b/arch/mips/ath79/mach-pb44.c
@@ -12,7 +12,7 @@
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/i2c-gpio.h>
-#include <linux/i2c/pcf857x.h>
+#include <linux/platform_data/pcf857x.h>
#include "machtypes.h"
#include "dev-gpio-buttons.h"
diff --git a/arch/mips/ath79/pci.c b/arch/mips/ath79/pci.c
index 730c0b03060d..b816cb4a25ff 100644
--- a/arch/mips/ath79/pci.c
+++ b/arch/mips/ath79/pci.c
@@ -22,10 +22,10 @@
#include "pci.h"
static int (*ath79_pci_plat_dev_init)(struct pci_dev *dev);
-static const struct ath79_pci_irq *ath79_pci_irq_map __initdata;
-static unsigned ath79_pci_nr_irqs __initdata;
+static const struct ath79_pci_irq *ath79_pci_irq_map;
+static unsigned ath79_pci_nr_irqs;
-static const struct ath79_pci_irq ar71xx_pci_irq_map[] __initconst = {
+static const struct ath79_pci_irq ar71xx_pci_irq_map[] = {
{
.slot = 17,
.pin = 1,
@@ -41,7 +41,7 @@ static const struct ath79_pci_irq ar71xx_pci_irq_map[] __initconst = {
}
};
-static const struct ath79_pci_irq ar724x_pci_irq_map[] __initconst = {
+static const struct ath79_pci_irq ar724x_pci_irq_map[] = {
{
.slot = 0,
.pin = 1,
@@ -49,7 +49,7 @@ static const struct ath79_pci_irq ar724x_pci_irq_map[] __initconst = {
}
};
-static const struct ath79_pci_irq qca955x_pci_irq_map[] __initconst = {
+static const struct ath79_pci_irq qca955x_pci_irq_map[] = {
{
.bus = 0,
.slot = 0,
@@ -64,7 +64,7 @@ static const struct ath79_pci_irq qca955x_pci_irq_map[] __initconst = {
},
};
-int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
+int pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
{
int irq = -1;
int i;
diff --git a/arch/mips/bcm63xx/clk.c b/arch/mips/bcm63xx/clk.c
index 73626040e4d6..19577f771c1f 100644
--- a/arch/mips/bcm63xx/clk.c
+++ b/arch/mips/bcm63xx/clk.c
@@ -339,6 +339,9 @@ EXPORT_SYMBOL(clk_disable);
unsigned long clk_get_rate(struct clk *clk)
{
+ if (!clk)
+ return 0;
+
return clk->rate;
}
diff --git a/arch/mips/boot/Makefile b/arch/mips/boot/Makefile
index 145b5ce8eb7e..1bd5c4f00d19 100644
--- a/arch/mips/boot/Makefile
+++ b/arch/mips/boot/Makefile
@@ -118,6 +118,12 @@ ifeq ($(ADDR_BITS),64)
itb_addr_cells = 2
endif
+quiet_cmd_its_cat = CAT $@
+ cmd_its_cat = cat $^ >$@
+
+$(obj)/vmlinux.its.S: $(addprefix $(srctree)/arch/mips/$(PLATFORM)/,$(ITS_INPUTS))
+ $(call if_changed,its_cat)
+
quiet_cmd_cpp_its_S = ITS $@
cmd_cpp_its_S = $(CPP) $(cpp_flags) -P -C -o $@ $< \
-DKERNEL_NAME="\"Linux $(KERNELRELEASE)\"" \
@@ -128,19 +134,19 @@ quiet_cmd_cpp_its_S = ITS $@
-DADDR_BITS=$(ADDR_BITS) \
-DADDR_CELLS=$(itb_addr_cells)
-$(obj)/vmlinux.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
+$(obj)/vmlinux.its: $(obj)/vmlinux.its.S $(VMLINUX) FORCE
$(call if_changed_dep,cpp_its_S,none,vmlinux.bin)
-$(obj)/vmlinux.gz.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
+$(obj)/vmlinux.gz.its: $(obj)/vmlinux.its.S $(VMLINUX) FORCE
$(call if_changed_dep,cpp_its_S,gzip,vmlinux.bin.gz)
-$(obj)/vmlinux.bz2.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
+$(obj)/vmlinux.bz2.its: $(obj)/vmlinux.its.S $(VMLINUX) FORCE
$(call if_changed_dep,cpp_its_S,bzip2,vmlinux.bin.bz2)
-$(obj)/vmlinux.lzma.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
+$(obj)/vmlinux.lzma.its: $(obj)/vmlinux.its.S $(VMLINUX) FORCE
$(call if_changed_dep,cpp_its_S,lzma,vmlinux.bin.lzma)
-$(obj)/vmlinux.lzo.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
+$(obj)/vmlinux.lzo.its: $(obj)/vmlinux.its.S $(VMLINUX) FORCE
$(call if_changed_dep,cpp_its_S,lzo,vmlinux.bin.lzo)
quiet_cmd_itb-image = ITB $@
diff --git a/arch/mips/boot/compressed/.gitignore b/arch/mips/boot/compressed/.gitignore
new file mode 100644
index 000000000000..ebae133f1d00
--- /dev/null
+++ b/arch/mips/boot/compressed/.gitignore
@@ -0,0 +1,2 @@
+ashldi3.c
+bswapsi.c
diff --git a/arch/mips/boot/dts/Makefile b/arch/mips/boot/dts/Makefile
index b9db49203e0c..cbac26ce063e 100644
--- a/arch/mips/boot/dts/Makefile
+++ b/arch/mips/boot/dts/Makefile
@@ -5,6 +5,7 @@ dts-dirs += ingenic
dts-dirs += lantiq
dts-dirs += mti
dts-dirs += netlogic
+dts-dirs += ni
dts-dirs += pic32
dts-dirs += qca
dts-dirs += ralink
diff --git a/arch/mips/boot/dts/img/Makefile b/arch/mips/boot/dts/img/Makefile
index 69a65f0f82d2..3d70958d0f5a 100644
--- a/arch/mips/boot/dts/img/Makefile
+++ b/arch/mips/boot/dts/img/Makefile
@@ -1,6 +1,7 @@
-dtb-$(CONFIG_MACH_PISTACHIO) += pistachio_marduk.dtb
+dtb-$(CONFIG_FIT_IMAGE_FDT_BOSTON) += boston.dtb
-obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
+dtb-$(CONFIG_MACH_PISTACHIO) += pistachio_marduk.dtb
+obj-$(CONFIG_MACH_PISTACHIO) += pistachio_marduk.dtb.o
# Force kbuild to make empty built-in.o if necessary
obj- += dummy.o
diff --git a/arch/mips/boot/dts/img/boston.dts b/arch/mips/boot/dts/img/boston.dts
new file mode 100644
index 000000000000..53bfa29a7093
--- /dev/null
+++ b/arch/mips/boot/dts/img/boston.dts
@@ -0,0 +1,224 @@
+/dts-v1/;
+
+#include <dt-bindings/clock/boston-clock.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/mips-gic.h>
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "img,boston";
+
+ chosen {
+ stdout-path = "uart0:115200";
+ };
+
+ aliases {
+ uart0 = &uart0;
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "img,mips";
+ reg = <0>;
+ clocks = <&clk_boston BOSTON_CLK_CPU>;
+ };
+ };
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x00000000 0x10000000>;
+ };
+
+ pci0: pci@10000000 {
+ compatible = "xlnx,axi-pcie-host-1.00.a";
+ device_type = "pci";
+ reg = <0x10000000 0x2000000>;
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SHARED 2 IRQ_TYPE_LEVEL_HIGH>;
+
+ ranges = <0x02000000 0 0x40000000
+ 0x40000000 0 0x40000000>;
+
+ interrupt-map-mask = <0 0 0 7>;
+ interrupt-map = <0 0 0 1 &pci0_intc 1>,
+ <0 0 0 2 &pci0_intc 2>,
+ <0 0 0 3 &pci0_intc 3>,
+ <0 0 0 4 &pci0_intc 4>;
+
+ pci0_intc: interrupt-controller {
+ interrupt-controller;
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ };
+ };
+
+ pci1: pci@12000000 {
+ compatible = "xlnx,axi-pcie-host-1.00.a";
+ device_type = "pci";
+ reg = <0x12000000 0x2000000>;
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SHARED 1 IRQ_TYPE_LEVEL_HIGH>;
+
+ ranges = <0x02000000 0 0x20000000
+ 0x20000000 0 0x20000000>;
+
+ interrupt-map-mask = <0 0 0 7>;
+ interrupt-map = <0 0 0 1 &pci1_intc 1>,
+ <0 0 0 2 &pci1_intc 2>,
+ <0 0 0 3 &pci1_intc 3>,
+ <0 0 0 4 &pci1_intc 4>;
+
+ pci1_intc: interrupt-controller {
+ interrupt-controller;
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ };
+ };
+
+ pci2: pci@14000000 {
+ compatible = "xlnx,axi-pcie-host-1.00.a";
+ device_type = "pci";
+ reg = <0x14000000 0x2000000>;
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SHARED 0 IRQ_TYPE_LEVEL_HIGH>;
+
+ ranges = <0x02000000 0 0x16000000
+ 0x16000000 0 0x100000>;
+
+ interrupt-map-mask = <0 0 0 7>;
+ interrupt-map = <0 0 0 1 &pci2_intc 1>,
+ <0 0 0 2 &pci2_intc 2>,
+ <0 0 0 3 &pci2_intc 3>,
+ <0 0 0 4 &pci2_intc 4>;
+
+ pci2_intc: interrupt-controller {
+ interrupt-controller;
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ };
+
+ pci2_root@0,0,0 {
+ compatible = "pci10ee,7021";
+ reg = <0x00000000 0 0 0 0>;
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+
+ eg20t_bridge@1,0,0 {
+ compatible = "pci8086,8800";
+ reg = <0x00010000 0 0 0 0>;
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+
+ eg20t_mac@2,0,1 {
+ compatible = "pci8086,8802";
+ reg = <0x00020100 0 0 0 0>;
+ phy-reset-gpios = <&eg20t_gpio 6
+ GPIO_ACTIVE_LOW>;
+ };
+
+ eg20t_gpio: eg20t_gpio@2,0,2 {
+ compatible = "pci8086,8803";
+ reg = <0x00020200 0 0 0 0>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ eg20t_i2c@2,12,2 {
+ compatible = "pci8086,8817";
+ reg = <0x00026200 0 0 0 0>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ rtc@0x68 {
+ compatible = "st,m41t81s";
+ reg = <0x68>;
+ };
+ };
+ };
+ };
+ };
+
+ gic: interrupt-controller@16120000 {
+ compatible = "mti,gic";
+ reg = <0x16120000 0x20000>;
+
+ interrupt-controller;
+ #interrupt-cells = <3>;
+
+ timer {
+ compatible = "mti,gic-timer";
+ interrupts = <GIC_LOCAL 1 IRQ_TYPE_NONE>;
+ clocks = <&clk_boston BOSTON_CLK_CPU>;
+ };
+ };
+
+ cdmm@16140000 {
+ compatible = "mti,mips-cdmm";
+ reg = <0x16140000 0x8000>;
+ };
+
+ cpc@16200000 {
+ compatible = "mti,mips-cpc";
+ reg = <0x16200000 0x8000>;
+ };
+
+ plat_regs: system-controller@17ffd000 {
+ compatible = "img,boston-platform-regs", "syscon";
+ reg = <0x17ffd000 0x1000>;
+
+ clk_boston: clock {
+ compatible = "img,boston-clock";
+ #clock-cells = <1>;
+ };
+ };
+
+ reboot: syscon-reboot {
+ compatible = "syscon-reboot";
+ regmap = <&plat_regs>;
+ offset = <0x10>;
+ mask = <0x10>;
+ };
+
+ uart0: uart@17ffe000 {
+ compatible = "ns16550a";
+ reg = <0x17ffe000 0x1000>;
+ reg-shift = <2>;
+
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SHARED 3 IRQ_TYPE_LEVEL_HIGH>;
+
+ clocks = <&clk_boston BOSTON_CLK_SYS>;
+ };
+
+ lcd: lcd@17fff000 {
+ compatible = "img,boston-lcd";
+ reg = <0x17fff000 0x8>;
+ };
+};
diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts
index 1652d8d60b1e..6c381844929c 100644
--- a/arch/mips/boot/dts/ingenic/ci20.dts
+++ b/arch/mips/boot/dts/ingenic/ci20.dts
@@ -1,6 +1,7 @@
/dts-v1/;
#include "jz4780.dtsi"
+#include <dt-bindings/gpio/gpio.h>
/ {
compatible = "img,ci20", "ingenic,jz4780";
@@ -21,6 +22,13 @@
reg = <0x0 0x10000000
0x30000000 0x30000000>;
};
+
+ eth0_power: fixedregulator@0 {
+ compatible = "regulator-fixed";
+ regulator-name = "eth0_power";
+ gpio = <&gpb 25 GPIO_ACTIVE_LOW>;
+ enable-active-high;
+ };
};
&ext {
@@ -29,18 +37,30 @@
&uart0 {
status = "okay";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pins_uart0>;
};
&uart1 {
status = "okay";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pins_uart1>;
};
&uart3 {
status = "okay";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pins_uart2>;
};
&uart4 {
status = "okay";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pins_uart4>;
};
&nemc {
@@ -61,6 +81,13 @@
ingenic,nemc-tAW = <15>;
ingenic,nemc-tSTRV = <100>;
+ /*
+ * Only CLE/ALE are needed for the devices that are connected, rather
+ * than the full address line set.
+ */
+ pinctrl-names = "default";
+ pinctrl-0 = <&pins_nemc>;
+
nand@1 {
reg = <1>;
@@ -69,6 +96,9 @@
nand-ecc-mode = "hw";
nand-on-flash-bbt;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pins_nemc_cs1>;
+
partitions {
compatible = "fixed-partitions";
#address-cells = <2>;
@@ -101,8 +131,75 @@
};
};
};
+
+ dm9000@6 {
+ compatible = "davicom,dm9000";
+ davicom,no-eeprom;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pins_nemc_cs6>;
+
+ reg = <6 0 1 /* addr */
+ 6 2 1>; /* data */
+
+ ingenic,nemc-tAS = <15>;
+ ingenic,nemc-tAH = <10>;
+ ingenic,nemc-tBP = <20>;
+ ingenic,nemc-tAW = <50>;
+ ingenic,nemc-tSTRV = <100>;
+
+ reset-gpios = <&gpf 12 GPIO_ACTIVE_HIGH>;
+ vcc-supply = <&eth0_power>;
+
+ interrupt-parent = <&gpe>;
+ interrupts = <19 4>;
+ };
};
&bch {
status = "okay";
};
+
+&pinctrl {
+ pins_uart0: uart0 {
+ function = "uart0";
+ groups = "uart0-data";
+ bias-disable;
+ };
+
+ pins_uart1: uart1 {
+ function = "uart1";
+ groups = "uart1-data";
+ bias-disable;
+ };
+
+ pins_uart2: uart2 {
+ function = "uart2";
+ groups = "uart2-data", "uart2-hwflow";
+ bias-disable;
+ };
+
+ pins_uart4: uart4 {
+ function = "uart4";
+ groups = "uart4-data";
+ bias-disable;
+ };
+
+ pins_nemc: nemc {
+ function = "nemc";
+ groups = "nemc-data", "nemc-cle-ale", "nemc-rd-we", "nemc-frd-fwe";
+ bias-disable;
+ };
+
+ pins_nemc_cs1: nemc-cs1 {
+ function = "nemc-cs1";
+ groups = "nemc-cs1";
+ bias-disable;
+ };
+
+ pins_nemc_cs6: nemc-cs6 {
+ function = "nemc-cs6";
+ groups = "nemc-cs6";
+ bias-disable;
+ };
+};
diff --git a/arch/mips/boot/dts/ingenic/jz4740.dtsi b/arch/mips/boot/dts/ingenic/jz4740.dtsi
index 3e1587f1f77a..2ca7ce7481f1 100644
--- a/arch/mips/boot/dts/ingenic/jz4740.dtsi
+++ b/arch/mips/boot/dts/ingenic/jz4740.dtsi
@@ -55,6 +55,74 @@
clock-names = "rtc";
};
+ pinctrl: pin-controller@10010000 {
+ compatible = "ingenic,jz4740-pinctrl";
+ reg = <0x10010000 0x400>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ gpa: gpio@0 {
+ compatible = "ingenic,jz4740-gpio";
+ reg = <0>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 0 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <28>;
+ };
+
+ gpb: gpio@1 {
+ compatible = "ingenic,jz4740-gpio";
+ reg = <1>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 32 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <27>;
+ };
+
+ gpc: gpio@2 {
+ compatible = "ingenic,jz4740-gpio";
+ reg = <2>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 64 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <26>;
+ };
+
+ gpd: gpio@3 {
+ compatible = "ingenic,jz4740-gpio";
+ reg = <3>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 96 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <25>;
+ };
+ };
+
uart0: serial@10030000 {
compatible = "ingenic,jz4740-uart";
reg = <0x10030000 0x100>;
diff --git a/arch/mips/boot/dts/ingenic/jz4780.dtsi b/arch/mips/boot/dts/ingenic/jz4780.dtsi
index b868b429add2..e906134ecaef 100644
--- a/arch/mips/boot/dts/ingenic/jz4780.dtsi
+++ b/arch/mips/boot/dts/ingenic/jz4780.dtsi
@@ -44,6 +44,115 @@
#clock-cells = <1>;
};
+ rtc_dev: rtc@10003000 {
+ compatible = "ingenic,jz4780-rtc";
+ reg = <0x10003000 0x4c>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <32>;
+
+ clocks = <&cgu JZ4780_CLK_RTCLK>;
+ clock-names = "rtc";
+ };
+
+ pinctrl: pin-controller@10010000 {
+ compatible = "ingenic,jz4780-pinctrl";
+ reg = <0x10010000 0x600>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ gpa: gpio@0 {
+ compatible = "ingenic,jz4780-gpio";
+ reg = <0>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 0 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <17>;
+ };
+
+ gpb: gpio@1 {
+ compatible = "ingenic,jz4780-gpio";
+ reg = <1>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 32 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <16>;
+ };
+
+ gpc: gpio@2 {
+ compatible = "ingenic,jz4780-gpio";
+ reg = <2>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 64 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <15>;
+ };
+
+ gpd: gpio@3 {
+ compatible = "ingenic,jz4780-gpio";
+ reg = <3>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 96 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <14>;
+ };
+
+ gpe: gpio@4 {
+ compatible = "ingenic,jz4780-gpio";
+ reg = <4>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 128 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <13>;
+ };
+
+ gpf: gpio@5 {
+ compatible = "ingenic,jz4780-gpio";
+ reg = <5>;
+
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 160 32>;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <12>;
+ };
+ };
+
uart0: serial@10030000 {
compatible = "ingenic,jz4780-uart";
reg = <0x10030000 0x100>;
diff --git a/arch/mips/boot/dts/ingenic/qi_lb60.dts b/arch/mips/boot/dts/ingenic/qi_lb60.dts
index be1a7d3a3e1b..b715ee2ac2ee 100644
--- a/arch/mips/boot/dts/ingenic/qi_lb60.dts
+++ b/arch/mips/boot/dts/ingenic/qi_lb60.dts
@@ -17,3 +17,16 @@
&rtc_dev {
system-power-controller;
};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pins_uart0>;
+};
+
+&pinctrl {
+ pins_uart0: uart0 {
+ function = "uart0";
+ groups = "uart0-data";
+ bias-disable;
+ };
+};
diff --git a/arch/mips/boot/dts/mti/sead3.dts b/arch/mips/boot/dts/mti/sead3.dts
index b112879a5d9d..4f8bc83c2960 100644
--- a/arch/mips/boot/dts/mti/sead3.dts
+++ b/arch/mips/boot/dts/mti/sead3.dts
@@ -11,15 +11,14 @@
#size-cells = <1>;
compatible = "mti,sead-3";
model = "MIPS SEAD-3";
- interrupt-parent = <&gic>;
chosen {
- stdout-path = "uart1:115200";
+ stdout-path = "serial1:115200";
};
aliases {
- uart0 = &uart0;
- uart1 = &uart1;
+ serial0 = &uart0;
+ serial1 = &uart1;
};
cpus {
@@ -54,18 +53,14 @@
* controller & should be probed first.
*/
interrupt-parent = <&cpu_intc>;
-
- timer {
- compatible = "mti,gic-timer";
- interrupts = <GIC_LOCAL 1 IRQ_TYPE_NONE>;
- };
};
ehci@1b200000 {
compatible = "generic-ehci";
reg = <0x1b200000 0x1000>;
- interrupts = <0>; /* GIC 0 or CPU 6 */
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SHARED 0 IRQ_TYPE_LEVEL_HIGH>; /* GIC 0 or CPU 6 */
has-transaction-translator;
};
@@ -227,7 +222,8 @@
clock-frequency = <14745600>;
- interrupts = <3>; /* GIC 3 or CPU 4 */
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SHARED 3 IRQ_TYPE_LEVEL_HIGH>; /* GIC 3 or CPU 4 */
no-loopback-test;
};
@@ -241,7 +237,8 @@
clock-frequency = <14745600>;
- interrupts = <2>; /* GIC 2 or CPU 4 */
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SHARED 2 IRQ_TYPE_LEVEL_HIGH>; /* GIC 2 or CPU 4 */
no-loopback-test;
};
@@ -251,7 +248,8 @@
reg = <0x1f010000 0x10000>;
reg-io-width = <4>;
- interrupts = <0>; /* GIC 0 or CPU 6 */
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SHARED 0 IRQ_TYPE_LEVEL_HIGH>; /* GIC 0 or CPU 6 */
phy-mode = "mii";
smsc,irq-push-pull;
diff --git a/arch/mips/boot/dts/ni/169445.dts b/arch/mips/boot/dts/ni/169445.dts
new file mode 100644
index 000000000000..5389ef46c480
--- /dev/null
+++ b/arch/mips/boot/dts/ni/169445.dts
@@ -0,0 +1,100 @@
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "ni,169445";
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "mti,mips14KEc";
+ clocks = <&baseclk>;
+ reg = <0>;
+ };
+ };
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x10000000>;
+ };
+
+ baseclk: baseclock {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <50000000>;
+ };
+
+ cpu_intc: interrupt-controller {
+ #address-cells = <0>;
+ compatible = "mti,cpu-interrupt-controller";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+
+ ahb@1f300000 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x1f300000 0x80FFF>;
+
+ gpio1: gpio@10 {
+ compatible = "ni,169445-nand-gpio";
+ reg = <0x10 0x4>;
+ reg-names = "dat";
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ gpio2: gpio@14 {
+ compatible = "ni,169445-nand-gpio";
+ reg = <0x14 0x4>;
+ reg-names = "dat";
+ gpio-controller;
+ #gpio-cells = <2>;
+ no-output;
+ };
+
+ nand@0 {
+ compatible = "gpio-control-nand";
+ nand-on-flash-bbt;
+ nand-ecc-mode = "soft_bch";
+ nand-ecc-step-size = <512>;
+ nand-ecc-strength = <4>;
+ reg = <0x0 4>;
+ gpios = <&gpio2 0 0>, /* rdy */
+ <&gpio1 1 0>, /* nce */
+ <&gpio1 2 0>, /* ale */
+ <&gpio1 3 0>, /* cle */
+ <&gpio1 4 0>; /* nwp */
+ };
+
+ serial@80000 {
+ compatible = "ns16550a";
+ reg = <0x80000 0x1000>;
+ interrupt-parent = <&cpu_intc>;
+ interrupts = <6>;
+ clocks = <&baseclk>;
+ reg-shift = <0>;
+ };
+
+ ethernet@40000 {
+ compatible = "snps,dwmac-4.10a";
+ interrupt-parent = <&cpu_intc>;
+ interrupts = <5>;
+ interrupt-names = "macirq";
+ reg = <0x40000 0x2000>;
+ clock-names = "stmmaceth", "pclk";
+ clocks = <&baseclk>, <&baseclk>;
+
+ phy-mode = "rgmii";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+ };
+ };
+};
diff --git a/arch/mips/boot/dts/ni/Makefile b/arch/mips/boot/dts/ni/Makefile
new file mode 100644
index 000000000000..66cfdffc51c2
--- /dev/null
+++ b/arch/mips/boot/dts/ni/Makefile
@@ -0,0 +1,7 @@
+dtb-$(CONFIG_FIT_IMAGE_FDT_NI169445) += 169445.dtb
+
+# Force kbuild to make empty built-in.o if necessary
+obj- += dummy.o
+
+always := $(dtb-y)
+clean-files := *.dtb *.dtb.S
diff --git a/arch/mips/boot/dts/ralink/Makefile b/arch/mips/boot/dts/ralink/Makefile
index 2a7225954bf6..55e2937b61f3 100644
--- a/arch/mips/boot/dts/ralink/Makefile
+++ b/arch/mips/boot/dts/ralink/Makefile
@@ -2,6 +2,8 @@ dtb-$(CONFIG_DTB_RT2880_EVAL) += rt2880_eval.dtb
dtb-$(CONFIG_DTB_RT305X_EVAL) += rt3052_eval.dtb
dtb-$(CONFIG_DTB_RT3883_EVAL) += rt3883_eval.dtb
dtb-$(CONFIG_DTB_MT7620A_EVAL) += mt7620a_eval.dtb
+dtb-$(CONFIG_DTB_OMEGA2P) += omega2p.dtb
+dtb-$(CONFIG_DTB_VOCORE2) += vocore2.dtb
obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
diff --git a/arch/mips/boot/dts/ralink/mt7628a.dtsi b/arch/mips/boot/dts/ralink/mt7628a.dtsi
new file mode 100644
index 000000000000..9ff7e8faaecc
--- /dev/null
+++ b/arch/mips/boot/dts/ralink/mt7628a.dtsi
@@ -0,0 +1,126 @@
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "ralink,mt7628a-soc";
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ compatible = "mti,mips24KEc";
+ device_type = "cpu";
+ reg = <0>;
+ };
+ };
+
+ resetc: reset-controller {
+ compatible = "ralink,rt2880-reset";
+ #reset-cells = <1>;
+ };
+
+ cpuintc: interrupt-controller {
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ compatible = "mti,cpu-interrupt-controller";
+ };
+
+ palmbus@10000000 {
+ compatible = "palmbus";
+ reg = <0x10000000 0x200000>;
+ ranges = <0x0 0x10000000 0x1FFFFF>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ sysc: system-controller@0 {
+ compatible = "ralink,mt7620a-sysc", "syscon";
+ reg = <0x0 0x100>;
+ };
+
+ intc: interrupt-controller@200 {
+ compatible = "ralink,rt2880-intc";
+ reg = <0x200 0x100>;
+
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ resets = <&resetc 9>;
+ reset-names = "intc";
+
+ interrupt-parent = <&cpuintc>;
+ interrupts = <2>;
+
+ ralink,intc-registers = <0x9c 0xa0
+ 0x6c 0xa4
+ 0x80 0x78>;
+ };
+
+ memory-controller@300 {
+ compatible = "ralink,mt7620a-memc";
+ reg = <0x300 0x100>;
+ };
+
+ uart0: uartlite@c00 {
+ compatible = "ns16550a";
+ reg = <0xc00 0x100>;
+
+ resets = <&resetc 12>;
+ reset-names = "uart0";
+
+ interrupt-parent = <&intc>;
+ interrupts = <20>;
+
+ reg-shift = <2>;
+ };
+
+ uart1: uart1@d00 {
+ compatible = "ns16550a";
+ reg = <0xd00 0x100>;
+
+ resets = <&resetc 19>;
+ reset-names = "uart1";
+
+ interrupt-parent = <&intc>;
+ interrupts = <21>;
+
+ reg-shift = <2>;
+ };
+
+ uart2: uart2@e00 {
+ compatible = "ns16550a";
+ reg = <0xe00 0x100>;
+
+ resets = <&resetc 20>;
+ reset-names = "uart2";
+
+ interrupt-parent = <&intc>;
+ interrupts = <22>;
+
+ reg-shift = <2>;
+ };
+ };
+
+ usb_phy: usb-phy@10120000 {
+ compatible = "mediatek,mt7628-usbphy";
+ reg = <0x10120000 0x1000>;
+
+ #phy-cells = <0>;
+
+ ralink,sysctl = <&sysc>;
+ resets = <&resetc 22 &resetc 25>;
+ reset-names = "host", "device";
+ };
+
+ ehci@101c0000 {
+ compatible = "generic-ehci";
+ reg = <0x101c0000 0x1000>;
+
+ phys = <&usb_phy>;
+ phy-names = "usb";
+
+ interrupt-parent = <&intc>;
+ interrupts = <18>;
+ };
+};
diff --git a/arch/mips/boot/dts/ralink/omega2p.dts b/arch/mips/boot/dts/ralink/omega2p.dts
new file mode 100644
index 000000000000..5884fd48f59a
--- /dev/null
+++ b/arch/mips/boot/dts/ralink/omega2p.dts
@@ -0,0 +1,18 @@
+/dts-v1/;
+
+/include/ "mt7628a.dtsi"
+
+/ {
+ compatible = "onion,omega2+", "ralink,mt7688a-soc", "ralink,mt7628a-soc";
+ model = "Onion Omega2+";
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x8000000>;
+ };
+
+ chosen {
+ bootargs = "console=ttyS0,115200";
+ stdout-path = &uart0;
+ };
+};
diff --git a/arch/mips/boot/dts/ralink/vocore2.dts b/arch/mips/boot/dts/ralink/vocore2.dts
new file mode 100644
index 000000000000..fa8a5f8f236a
--- /dev/null
+++ b/arch/mips/boot/dts/ralink/vocore2.dts
@@ -0,0 +1,18 @@
+/dts-v1/;
+
+#include "mt7628a.dtsi"
+
+/ {
+ compatible = "vocore,vocore2", "ralink,mt7628a-soc";
+ model = "VoCore2";
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x8000000>;
+ };
+
+ chosen {
+ bootargs = "console=ttyS2,115200";
+ stdout-path = &uart2;
+ };
+};
diff --git a/arch/mips/cavium-octeon/executive/Makefile b/arch/mips/cavium-octeon/executive/Makefile
index b6d6e841a984..50b427879465 100644
--- a/arch/mips/cavium-octeon/executive/Makefile
+++ b/arch/mips/cavium-octeon/executive/Makefile
@@ -16,4 +16,4 @@ obj-y += cvmx-pko.o cvmx-spi.o cvmx-cmd-queue.o \
cvmx-helper-loop.o cvmx-helper-spi.o cvmx-helper-util.o \
cvmx-interrupt-decodes.o cvmx-interrupt-rsl.o
-obj-y += cvmx-helper-errata.o cvmx-helper-jtag.o
+obj-y += cvmx-helper-errata.o cvmx-helper-jtag.o cvmx-boot-vector.o
diff --git a/arch/mips/cavium-octeon/executive/cvmx-boot-vector.c b/arch/mips/cavium-octeon/executive/cvmx-boot-vector.c
new file mode 100644
index 000000000000..b7019d21808e
--- /dev/null
+++ b/arch/mips/cavium-octeon/executive/cvmx-boot-vector.c
@@ -0,0 +1,167 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2004-2017 Cavium, Inc.
+ */
+
+
+/*
+ We install this program at the bootvector:
+------------------------------------
+ .set noreorder
+ .set nomacro
+ .set noat
+reset_vector:
+ dmtc0 $k0, $31, 0 # Save $k0 to DESAVE
+ dmtc0 $k1, $31, 3 # Save $k1 to KScratch2
+
+ mfc0 $k0, $12, 0 # Status
+ mfc0 $k1, $15, 1 # Ebase
+
+ ori $k0, 0x84 # Enable 64-bit addressing, set
+ # ERL (should already be set)
+ andi $k1, 0x3ff # mask out core ID
+
+ mtc0 $k0, $12, 0 # Status
+ sll $k1, 5
+
+ lui $k0, 0xbfc0
+ cache 17, 0($0) # Core-14345, clear L1 Dcache virtual
+ # tags if the core hit an NMI
+
+ ld $k0, 0x78($k0) # k0 <- (bfc00078) pointer to the reset vector
+ synci 0($0) # Invalidate ICache to get coherent
+ # view of target code.
+
+ daddu $k0, $k0, $k1
+ nop
+
+ ld $k0, 0($k0) # k0 <- core specific target address
+ dmfc0 $k1, $31, 3 # Restore $k1 from KScratch2
+
+ beqz $k0, wait_loop # Spin in wait loop
+ nop
+
+ jr $k0
+ nop
+
+ nop # NOPs needed here to fill delay slots
+ nop # on endian reversal of previous instructions
+
+wait_loop:
+ wait
+ nop
+
+ b wait_loop
+ nop
+
+ nop
+ nop
+------------------------------------
+
+0000000000000000 <reset_vector>:
+ 0: 40baf800 dmtc0 k0,c0_desave
+ 4: 40bbf803 dmtc0 k1,c0_kscratch2
+
+ 8: 401a6000 mfc0 k0,c0_status
+ c: 401b7801 mfc0 k1,c0_ebase
+
+ 10: 375a0084 ori k0,k0,0x84
+ 14: 337b03ff andi k1,k1,0x3ff
+
+ 18: 409a6000 mtc0 k0,c0_status
+ 1c: 001bd940 sll k1,k1,0x5
+
+ 20: 3c1abfc0 lui k0,0xbfc0
+ 24: bc110000 cache 0x11,0(zero)
+
+ 28: df5a0078 ld k0,120(k0)
+ 2c: 041f0000 synci 0(zero)
+
+ 30: 035bd02d daddu k0,k0,k1
+ 34: 00000000 nop
+
+ 38: df5a0000 ld k0,0(k0)
+ 3c: 403bf803 dmfc0 k1,c0_kscratch2
+
+ 40: 13400005 beqz k0,58 <wait_loop>
+ 44: 00000000 nop
+
+ 48: 03400008 jr k0
+ 4c: 00000000 nop
+
+ 50: 00000000 nop
+ 54: 00000000 nop
+
+0000000000000058 <wait_loop>:
+ 58: 42000020 wait
+ 5c: 00000000 nop
+
+ 60: 1000fffd b 58 <wait_loop>
+ 64: 00000000 nop
+
+ 68: 00000000 nop
+ 6c: 00000000 nop
+
+ */
+
+#include <asm/octeon/cvmx-boot-vector.h>
+
+static unsigned long long _cvmx_bootvector_data[16] = {
+ 0x40baf80040bbf803ull, /* patch low order 8-bits if no KScratch*/
+ 0x401a6000401b7801ull,
+ 0x375a0084337b03ffull,
+ 0x409a6000001bd940ull,
+ 0x3c1abfc0bc110000ull,
+ 0xdf5a0078041f0000ull,
+ 0x035bd02d00000000ull,
+ 0xdf5a0000403bf803ull, /* patch low order 8-bits if no KScratch*/
+ 0x1340000500000000ull,
+ 0x0340000800000000ull,
+ 0x0000000000000000ull,
+ 0x4200002000000000ull,
+ 0x1000fffd00000000ull,
+ 0x0000000000000000ull,
+ OCTEON_BOOT_MOVEABLE_MAGIC1,
+ 0 /* To be filled in with address of vector block*/
+};
+
+/* 2^10 CPUs */
+#define VECTOR_TABLE_SIZE (1024 * sizeof(struct cvmx_boot_vector_element))
+
+static void cvmx_boot_vector_init(void *mem)
+{
+ uint64_t kseg0_mem;
+ int i;
+
+ memset(mem, 0, VECTOR_TABLE_SIZE);
+ kseg0_mem = cvmx_ptr_to_phys(mem) | 0x8000000000000000ull;
+
+ for (i = 0; i < 15; i++) {
+ uint64_t v = _cvmx_bootvector_data[i];
+
+ if (OCTEON_IS_OCTEON1PLUS() && (i == 0 || i == 7))
+ v &= 0xffffffff00000000ull; /* KScratch not availble. */
+ cvmx_write_csr(CVMX_MIO_BOOT_LOC_ADR, i * 8);
+ cvmx_write_csr(CVMX_MIO_BOOT_LOC_DAT, v);
+ }
+ cvmx_write_csr(CVMX_MIO_BOOT_LOC_ADR, 15 * 8);
+ cvmx_write_csr(CVMX_MIO_BOOT_LOC_DAT, kseg0_mem);
+ cvmx_write_csr(CVMX_MIO_BOOT_LOC_CFGX(0), 0x81fc0000);
+}
+
+/**
+ * Get a pointer to the per-core table of reset vector pointers
+ *
+ */
+struct cvmx_boot_vector_element *cvmx_boot_vector_get(void)
+{
+ struct cvmx_boot_vector_element *ret;
+
+ ret = cvmx_bootmem_alloc_named_range_once(VECTOR_TABLE_SIZE, 0,
+ (1ull << 32) - 1, 8, "__boot_vector1__", cvmx_boot_vector_init);
+ return ret;
+}
+EXPORT_SYMBOL(cvmx_boot_vector_get);
diff --git a/arch/mips/cavium-octeon/executive/cvmx-bootmem.c b/arch/mips/cavium-octeon/executive/cvmx-bootmem.c
index 8d54d774933c..94d97ebfa036 100644
--- a/arch/mips/cavium-octeon/executive/cvmx-bootmem.c
+++ b/arch/mips/cavium-octeon/executive/cvmx-bootmem.c
@@ -44,6 +44,55 @@ static struct cvmx_bootmem_desc *cvmx_bootmem_desc;
/* See header file for descriptions of functions */
+/**
+ * This macro returns the size of a member of a structure.
+ * Logically it is the same as "sizeof(s::field)" in C++, but
+ * C lacks the "::" operator.
+ */
+#define SIZEOF_FIELD(s, field) sizeof(((s *)NULL)->field)
+
+/**
+ * This macro returns a member of the
+ * cvmx_bootmem_named_block_desc_t structure. These members can't
+ * be directly addressed as they might be in memory not directly
+ * reachable. In the case where bootmem is compiled with
+ * LINUX_HOST, the structure itself might be located on a remote
+ * Octeon. The argument "field" is the member name of the
+ * cvmx_bootmem_named_block_desc_t to read. Regardless of the type
+ * of the field, the return type is always a uint64_t. The "addr"
+ * parameter is the physical address of the structure.
+ */
+#define CVMX_BOOTMEM_NAMED_GET_FIELD(addr, field) \
+ __cvmx_bootmem_desc_get(addr, \
+ offsetof(struct cvmx_bootmem_named_block_desc, field), \
+ SIZEOF_FIELD(struct cvmx_bootmem_named_block_desc, field))
+
+/**
+ * This function is the implementation of the get macros defined
+ * for individual structure members. The argument are generated
+ * by the macros inorder to read only the needed memory.
+ *
+ * @param base 64bit physical address of the complete structure
+ * @param offset Offset from the beginning of the structure to the member being
+ * accessed.
+ * @param size Size of the structure member.
+ *
+ * @return Value of the structure member promoted into a uint64_t.
+ */
+static inline uint64_t __cvmx_bootmem_desc_get(uint64_t base, int offset,
+ int size)
+{
+ base = (1ull << 63) | (base + offset);
+ switch (size) {
+ case 4:
+ return cvmx_read64_uint32(base);
+ case 8:
+ return cvmx_read64_uint64(base);
+ default:
+ return 0;
+ }
+}
+
/*
* Wrapper functions are provided for reading/writing the size and
* next block values as these may not be directly addressible (in 32
@@ -98,6 +147,42 @@ void *cvmx_bootmem_alloc(uint64_t size, uint64_t alignment)
return cvmx_bootmem_alloc_range(size, alignment, 0, 0);
}
+void *cvmx_bootmem_alloc_named_range_once(uint64_t size, uint64_t min_addr,
+ uint64_t max_addr, uint64_t align,
+ char *name,
+ void (*init) (void *))
+{
+ int64_t addr;
+ void *ptr;
+ uint64_t named_block_desc_addr;
+
+ named_block_desc_addr = (uint64_t)
+ cvmx_bootmem_phy_named_block_find(name,
+ (uint32_t)CVMX_BOOTMEM_FLAG_NO_LOCKING);
+
+ if (named_block_desc_addr) {
+ addr = CVMX_BOOTMEM_NAMED_GET_FIELD(named_block_desc_addr,
+ base_addr);
+ return cvmx_phys_to_ptr(addr);
+ }
+
+ addr = cvmx_bootmem_phy_named_block_alloc(size, min_addr, max_addr,
+ align, name,
+ (uint32_t)CVMX_BOOTMEM_FLAG_NO_LOCKING);
+
+ if (addr < 0)
+ return NULL;
+ ptr = cvmx_phys_to_ptr(addr);
+
+ if (init)
+ init(ptr);
+ else
+ memset(ptr, 0, size);
+
+ return ptr;
+}
+EXPORT_SYMBOL(cvmx_bootmem_alloc_named_range_once);
+
void *cvmx_bootmem_alloc_named_range(uint64_t size, uint64_t min_addr,
uint64_t max_addr, uint64_t align,
char *name)
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index c1eb1ff7c800..5b3a3f6a9ad3 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -2963,3 +2963,12 @@ void octeon_fixup_irqs(void)
}
#endif /* CONFIG_HOTPLUG_CPU */
+
+struct irq_domain *octeon_irq_get_block_domain(int node, uint8_t block)
+{
+ struct octeon_ciu3_info *ciu3_info;
+
+ ciu3_info = octeon_ciu3_info_per_node[node & CVMX_NODE_MASK];
+ return ciu3_info->domain[block];
+}
+EXPORT_SYMBOL(octeon_irq_get_block_domain);
diff --git a/arch/mips/cavium-octeon/octeon-usb.c b/arch/mips/cavium-octeon/octeon-usb.c
index 542be1cd0f32..bfdfaf32d2c4 100644
--- a/arch/mips/cavium-octeon/octeon-usb.c
+++ b/arch/mips/cavium-octeon/octeon-usb.c
@@ -13,9 +13,9 @@
#include <linux/mutex.h>
#include <linux/delay.h>
#include <linux/of_platform.h>
+#include <linux/io.h>
#include <asm/octeon/octeon.h>
-#include <asm/octeon/cvmx-gpio-defs.h>
/* USB Control Register */
union cvm_usbdrd_uctl_ctl {
diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c
index 3de786545ded..75e7c8625659 100644
--- a/arch/mips/cavium-octeon/smp.c
+++ b/arch/mips/cavium-octeon/smp.c
@@ -205,7 +205,7 @@ int plat_post_relocation(long offset)
* Firmware CPU startup hook
*
*/
-static void octeon_boot_secondary(int cpu, struct task_struct *idle)
+static int octeon_boot_secondary(int cpu, struct task_struct *idle)
{
int count;
@@ -223,8 +223,12 @@ static void octeon_boot_secondary(int cpu, struct task_struct *idle)
udelay(1);
count--;
}
- if (count == 0)
+ if (count == 0) {
pr_err("Secondary boot timeout\n");
+ return -ETIMEDOUT;
+ }
+
+ return 0;
}
/**
@@ -408,7 +412,7 @@ late_initcall(register_cavium_notifier);
#endif /* CONFIG_HOTPLUG_CPU */
-struct plat_smp_ops octeon_smp_ops = {
+const struct plat_smp_ops octeon_smp_ops = {
.send_ipi_single = octeon_send_ipi_single,
.send_ipi_mask = octeon_send_ipi_mask,
.init_secondary = octeon_init_secondary,
@@ -485,7 +489,7 @@ static void octeon_78xx_send_ipi_mask(const struct cpumask *mask,
octeon_78xx_send_ipi_single(cpu, action);
}
-static struct plat_smp_ops octeon_78xx_smp_ops = {
+static const struct plat_smp_ops octeon_78xx_smp_ops = {
.send_ipi_single = octeon_78xx_send_ipi_single,
.send_ipi_mask = octeon_78xx_send_ipi_mask,
.init_secondary = octeon_init_secondary,
@@ -501,7 +505,7 @@ static struct plat_smp_ops octeon_78xx_smp_ops = {
void __init octeon_setup_smp(void)
{
- struct plat_smp_ops *ops;
+ const struct plat_smp_ops *ops;
if (octeon_has_feature(OCTEON_FEATURE_CIU3))
ops = &octeon_78xx_smp_ops;
diff --git a/arch/mips/configs/ar7_defconfig b/arch/mips/configs/ar7_defconfig
index 320772caf054..92fca3c42eac 100644
--- a/arch/mips/configs/ar7_defconfig
+++ b/arch/mips/configs/ar7_defconfig
@@ -3,7 +3,6 @@ CONFIG_HIGH_RES_TIMERS=y
CONFIG_HZ_100=y
CONFIG_KEXEC=y
# CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_KERNEL_LZMA=y
CONFIG_SYSVIPC=y
@@ -41,7 +40,6 @@ CONFIG_SYN_COOKIES=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
CONFIG_TCP_CONG_ADVANCED=y
# CONFIG_TCP_CONG_BIC is not set
@@ -86,7 +84,6 @@ CONFIG_MAC80211_RC_DEFAULT_PID=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_MTD=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
@@ -99,8 +96,6 @@ CONFIG_FIXED_PHY=y
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
CONFIG_CPMAC=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_PPP=m
CONFIG_PPP_MULTILINK=y
CONFIG_PPP_FILTER=y
@@ -142,7 +137,6 @@ CONFIG_BSD_DISKLABEL=y
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_STRIP_ASM_SYMS=y
CONFIG_DEBUG_FS=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="rootfstype=squashfs,jffs2"
CONFIG_CRYPTO=y
diff --git a/arch/mips/configs/ath79_defconfig b/arch/mips/configs/ath79_defconfig
index 134879c1310a..25ed914933e5 100644
--- a/arch/mips/configs/ath79_defconfig
+++ b/arch/mips/configs/ath79_defconfig
@@ -7,7 +7,6 @@ CONFIG_ATH79_MACH_PB44=y
CONFIG_ATH79_MACH_UBNT_XM=y
CONFIG_HZ_100=y
# CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_HIGH_RES_TIMERS=y
@@ -35,7 +34,6 @@ CONFIG_IP_ADVANCED_ROUTER=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_CFG80211=m
CONFIG_MAC80211=m
diff --git a/arch/mips/configs/bcm63xx_defconfig b/arch/mips/configs/bcm63xx_defconfig
index 5599a9f1e3c6..131b350f014f 100644
--- a/arch/mips/configs/bcm63xx_defconfig
+++ b/arch/mips/configs/bcm63xx_defconfig
@@ -5,7 +5,6 @@ CONFIG_BCM63XX_CPU_6348=y
CONFIG_BCM63XX_CPU_6358=y
CONFIG_NO_HZ=y
# CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
# CONFIG_SWAP is not set
CONFIG_TINY_RCU=y
@@ -33,7 +32,6 @@ CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_CFG80211=y
@@ -50,13 +48,10 @@ CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_PHYSMAP=y
# CONFIG_BLK_DEV is not set
-# CONFIG_MISC_DEVICES is not set
CONFIG_NETDEVICES=y
CONFIG_BCM63XX_PHY=y
CONFIG_NET_ETHERNET=y
CONFIG_BCM63XX_ENET=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_B43=y
# CONFIG_B43_PHY_LP is not set
# CONFIG_INPUT is not set
@@ -70,7 +65,6 @@ CONFIG_SERIAL_BCM63XX_CONSOLE=y
# CONFIG_HWMON is not set
# CONFIG_VGA_ARB is not set
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
CONFIG_USB_OHCI_HCD=y
@@ -84,7 +78,6 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
CONFIG_PROC_KCORE=y
# CONFIG_NETWORK_FILESYSTEMS is not set
CONFIG_MAGIC_SYSRQ=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="console=ttyS0,115200"
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/mips/configs/bigsur_defconfig b/arch/mips/configs/bigsur_defconfig
index d20b09d77b53..a55009edbb29 100644
--- a/arch/mips/configs/bigsur_defconfig
+++ b/arch/mips/configs/bigsur_defconfig
@@ -4,7 +4,6 @@ CONFIG_SMP=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_HZ_1000=y
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -60,7 +59,6 @@ CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_MODE_TRANSPORT=m
CONFIG_INET_XFRM_MODE_TUNNEL=m
-# CONFIG_INET_LRO is not set
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
@@ -182,7 +180,6 @@ CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
CONFIG_QFMT_V2=m
-CONFIG_AUTOFS_FS=m
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=m
@@ -284,7 +281,6 @@ CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_ZLIB=m
CONFIG_CRYPTO_LZO=m
CONFIG_CRC_T10DIF=m
CONFIG_CRC7=m
diff --git a/arch/mips/configs/bmips_be_defconfig b/arch/mips/configs/bmips_be_defconfig
index acf7785c4cdb..a7072a14d396 100644
--- a/arch/mips/configs/bmips_be_defconfig
+++ b/arch/mips/configs/bmips_be_defconfig
@@ -23,7 +23,6 @@ CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
CONFIG_CFG80211=y
CONFIG_NL80211_TESTMODE=y
diff --git a/arch/mips/configs/capcella_defconfig b/arch/mips/configs/capcella_defconfig
index 2924ba34a01b..bd80b5c852dd 100644
--- a/arch/mips/configs/capcella_defconfig
+++ b/arch/mips/configs/capcella_defconfig
@@ -1,6 +1,5 @@
CONFIG_MACH_VR41XX=y
CONFIG_ZAO_CAPCELLA=y
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -46,8 +45,6 @@ CONFIG_SMSC_PHY=m
CONFIG_NET_ETHERNET=y
CONFIG_NET_PCI=y
CONFIG_8139TOO=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -59,7 +56,6 @@ CONFIG_SERIAL_VR41XX_CONSOLE=y
CONFIG_GPIO_VR41XX=y
# CONFIG_HWMON is not set
# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_VR41XX=y
diff --git a/arch/mips/configs/cavium_octeon_defconfig b/arch/mips/configs/cavium_octeon_defconfig
index d4fda41f00ba..490b12af103c 100644
--- a/arch/mips/configs/cavium_octeon_defconfig
+++ b/arch/mips/configs/cavium_octeon_defconfig
@@ -42,7 +42,6 @@ CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
-# CONFIG_INET_LRO is not set
CONFIG_IPV6=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
@@ -61,11 +60,8 @@ CONFIG_BLK_DEV_SD=y
CONFIG_ATA=y
CONFIG_SATA_AHCI=y
CONFIG_SATA_AHCI_PLATFORM=y
-CONFIG_AHCI_OCTEON=y
CONFIG_PATA_OCTEON_CF=y
-CONFIG_SATA_SIL=y
CONFIG_NETDEVICES=y
-CONFIG_MII=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_NET_VENDOR_ALTEON is not set
@@ -122,22 +118,30 @@ CONFIG_SPI=y
CONFIG_SPI_OCTEON=y
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
-CONFIG_USB=m
-CONFIG_USB_EHCI_HCD=m
-CONFIG_USB_EHCI_HCD_PLATFORM=m
-CONFIG_USB_OHCI_HCD=m
-CONFIG_USB_OHCI_HCD_PLATFORM=m
+CONFIG_USB=y
+# CONFIG_USB_PCI is not set
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_HCD_PLATFORM=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_DWC3=y
CONFIG_MMC=y
# CONFIG_PWRSEQ_EMMC is not set
# CONFIG_PWRSEQ_SIMPLE is not set
-# CONFIG_MMC_BLOCK_BOUNCE is not set
CONFIG_MMC_CAVIUM_OCTEON=y
+CONFIG_EDAC=y
+CONFIG_EDAC_OCTEON_PC=y
+CONFIG_EDAC_OCTEON_L2C=y
+CONFIG_EDAC_OCTEON_LMC=y
+CONFIG_EDAC_OCTEON_PCI=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_DS1307=y
CONFIG_STAGING=y
CONFIG_OCTEON_ETHERNET=y
-CONFIG_OCTEON_USB=m
# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_RAS=y
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
diff --git a/arch/mips/configs/ci20_defconfig b/arch/mips/configs/ci20_defconfig
index 43e0ba24470c..5ea3104a3aca 100644
--- a/arch/mips/configs/ci20_defconfig
+++ b/arch/mips/configs/ci20_defconfig
@@ -41,7 +41,6 @@ CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
@@ -92,6 +91,7 @@ CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_I2C=y
CONFIG_I2C_JZ4780=y
CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_INGENIC=y
# CONFIG_HWMON is not set
CONFIG_REGULATOR=y
CONFIG_REGULATOR_DEBUG=y
@@ -100,6 +100,8 @@ CONFIG_REGULATOR_FIXED_VOLTAGE=y
# CONFIG_HID is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_MMC=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_JZ4740=y
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_MEMORY=y
# CONFIG_DNOTIFY is not set
diff --git a/arch/mips/configs/cobalt_defconfig b/arch/mips/configs/cobalt_defconfig
index 23b66934e18d..a9066f300665 100644
--- a/arch/mips/configs/cobalt_defconfig
+++ b/arch/mips/configs/cobalt_defconfig
@@ -1,5 +1,4 @@
CONFIG_MIPS_COBALT=y
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_RELAY=y
@@ -15,17 +14,14 @@ CONFIG_XFRM_USER=y
CONFIG_NET_KEY=y
CONFIG_NET_KEY_MIGRATE=y
CONFIG_INET=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLKDEVS=y
CONFIG_MTD_JEDECPROBE=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_PHYSMAP=y
CONFIG_BLK_DEV_LOOP=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_RAID_ATTRS=y
CONFIG_BLK_DEV_SD=y
# CONFIG_SCSI_LOWLEVEL is not set
@@ -36,8 +32,6 @@ CONFIG_NET_ETHERNET=y
CONFIG_NET_TULIP=y
CONFIG_DE2104X=y
CONFIG_TULIP=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_KEYBOARD is not set
@@ -56,7 +50,6 @@ CONFIG_FB_COBALT=y
# CONFIG_VGA_CONSOLE is not set
CONFIG_HID=m
CONFIG_USB=m
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_EHCI_HCD=m
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
CONFIG_USB_OHCI_HCD=m
@@ -84,6 +77,5 @@ CONFIG_NFS_V3_ACL=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_CRC16=y
CONFIG_LIBCRC32C=y
diff --git a/arch/mips/configs/decstation_defconfig b/arch/mips/configs/decstation_defconfig
index 2b6cb41d5715..e149f78901f8 100644
--- a/arch/mips/configs/decstation_defconfig
+++ b/arch/mips/configs/decstation_defconfig
@@ -1,6 +1,5 @@
CONFIG_MACH_DECSTATION=y
CONFIG_CPU_R3000=y
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
diff --git a/arch/mips/configs/e55_defconfig b/arch/mips/configs/e55_defconfig
index e94d266c4b97..c3ac0209457c 100644
--- a/arch/mips/configs/e55_defconfig
+++ b/arch/mips/configs/e55_defconfig
@@ -1,6 +1,5 @@
CONFIG_MACH_VR41XX=y
CONFIG_CASIO_E55=y
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -28,7 +27,6 @@ CONFIG_SERIAL_VR41XX_CONSOLE=y
CONFIG_GPIO_VR41XX=y
# CONFIG_HWMON is not set
# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_VR41XX=y
diff --git a/arch/mips/configs/fuloong2e_defconfig b/arch/mips/configs/fuloong2e_defconfig
index 87435897fd50..499f51498ecb 100644
--- a/arch/mips/configs/fuloong2e_defconfig
+++ b/arch/mips/configs/fuloong2e_defconfig
@@ -3,7 +3,6 @@ CONFIG_64BIT=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_PREEMPT_VOLUNTARY=y
-CONFIG_EXPERIMENTAL=y
CONFIG_LOCALVERSION="-fuloong2e"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
@@ -47,7 +46,6 @@ CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
@@ -79,7 +77,6 @@ CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
-CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_AH=m
@@ -88,7 +85,6 @@ CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
@@ -101,7 +97,6 @@ CONFIG_NET_9P=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_FW_LOADER=m
CONFIG_MTD=m
-CONFIG_MTD_CHAR=m
CONFIG_MTD_BLOCK=m
CONFIG_MTD_CFI=m
CONFIG_MTD_JEDECPROBE=m
@@ -163,7 +158,6 @@ CONFIG_I2C=m
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_VIAPRO=m
# CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
CONFIG_FB_RADEON=y
# CONFIG_FB_RADEON_I2C is not set
@@ -184,7 +178,6 @@ CONFIG_USB_KBD=y
CONFIG_USB_MOUSE=y
CONFIG_USB=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_OTG_WHITELIST=y
CONFIG_USB_WUSB_CBAF=m
CONFIG_USB_C67X00_HCD=m
@@ -201,7 +194,6 @@ CONFIG_USB_TMC=m
CONFIG_USB_STORAGE=y
CONFIG_USB_STORAGE_ONETOUCH=y
CONFIG_USB_STORAGE_CYPRESS_ATACB=y
-CONFIG_USB_LIBUSUAL=y
CONFIG_USB_SEVSEG=m
CONFIG_USB_ISIGHTFW=m
CONFIG_UIO=m
@@ -215,7 +207,6 @@ CONFIG_EXT4_FS=m
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
CONFIG_REISERFS_FS=m
-CONFIG_AUTOFS_FS=y
CONFIG_AUTOFS4_FS=y
CONFIG_FUSE_FS=y
CONFIG_ISO9660_FS=m
@@ -256,8 +247,6 @@ CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_UTF8=y
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_CRYPTO_FIPS=y
CONFIG_CRYPTO_AUTHENC=m
CONFIG_CRYPTO_CCM=m
diff --git a/arch/mips/configs/generic/board-boston.config b/arch/mips/configs/generic/board-boston.config
new file mode 100644
index 000000000000..19560a45b683
--- /dev/null
+++ b/arch/mips/configs/generic/board-boston.config
@@ -0,0 +1,48 @@
+CONFIG_FIT_IMAGE_FDT_BOSTON=y
+
+CONFIG_ATA=y
+CONFIG_SATA_AHCI=y
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
+
+CONFIG_AUXDISPLAY=y
+CONFIG_IMG_ASCII_LCD=y
+
+CONFIG_COMMON_CLK_BOSTON=y
+
+CONFIG_DMADEVICES=y
+CONFIG_PCH_DMA=y
+
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_PCH=y
+
+CONFIG_I2C=y
+CONFIG_I2C_EG20T=y
+
+CONFIG_MMC=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PCI=y
+
+CONFIG_NETDEVICES=y
+CONFIG_PCH_GBE=y
+
+CONFIG_PCI=y
+CONFIG_PCI_MSI=y
+CONFIG_PCIE_XILINX=y
+
+CONFIG_PCH_PHUB=y
+
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_M41T80=y
+
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_OF_PLATFORM=y
+
+CONFIG_SPI=y
+CONFIG_SPI_TOPCLIFF_PCH=y
+
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_OHCI_HCD=y
diff --git a/arch/mips/configs/generic/board-ni169445.config b/arch/mips/configs/generic/board-ni169445.config
new file mode 100644
index 000000000000..f72223b366ca
--- /dev/null
+++ b/arch/mips/configs/generic/board-ni169445.config
@@ -0,0 +1,30 @@
+# require CONFIG_CPU_MIPS32_R2=y
+# require CONFIG_CPU_LITTLE_ENDIAN=y
+
+CONFIG_FIT_IMAGE_FDT_NI169445=y
+
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_OF_PLATFORM=y
+
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_GENERIC_PLATFORM=y
+
+CONFIG_MTD=y
+CONFIG_MTD_BLOCK=y
+CONFIG_MTD_CMDLINE_PARTS=y
+
+CONFIG_MTD_NAND_ECC=y
+CONFIG_MTD_NAND_ECC_BCH=y
+CONFIG_MTD_NAND=y
+CONFIG_MTD_NAND_GPIO=y
+CONFIG_MTD_NAND_IDS=y
+
+CONFIG_MTD_UBI=y
+CONFIG_MTD_UBI_BLOCK=y
+
+CONFIG_NETDEVICES=y
+CONFIG_STMMAC_ETH=y
+CONFIG_STMMAC_PLATFORM=y
+CONFIG_DWMAC_GENERIC=y
diff --git a/arch/mips/configs/generic/board-sead-3.config b/arch/mips/configs/generic/board-sead-3.config
index 3b5e1ac579eb..df49a592dbb5 100644
--- a/arch/mips/configs/generic/board-sead-3.config
+++ b/arch/mips/configs/generic/board-sead-3.config
@@ -1,3 +1,5 @@
+# require CONFIG_32BIT=y
+
CONFIG_LEGACY_BOARD_SEAD3=y
CONFIG_AUXDISPLAY=y
diff --git a/arch/mips/configs/generic_defconfig b/arch/mips/configs/generic_defconfig
index 91aacf2ef26d..26b1cd5ffbf5 100644
--- a/arch/mips/configs/generic_defconfig
+++ b/arch/mips/configs/generic_defconfig
@@ -3,7 +3,7 @@ CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_MIPS_CPS=y
CONFIG_CPU_HAS_MSA=y
CONFIG_HIGHMEM=y
-CONFIG_NR_CPUS=2
+CONFIG_NR_CPUS=16
CONFIG_MIPS_O32_FP64_SUPPORT=y
CONFIG_SYSVIPC=y
CONFIG_NO_HZ_IDLE=y
@@ -61,7 +61,6 @@ CONFIG_HID_KENSINGTON=y
CONFIG_HID_LOGITECH=y
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
-# CONFIG_USB_SUPPORT is not set
# CONFIG_MIPS_PLATFORM_DEVICES is not set
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_EXT4_FS=y
diff --git a/arch/mips/configs/gpr_defconfig b/arch/mips/configs/gpr_defconfig
index e24feb0633aa..55438fc9991e 100644
--- a/arch/mips/configs/gpr_defconfig
+++ b/arch/mips/configs/gpr_defconfig
@@ -2,7 +2,6 @@ CONFIG_MIPS_ALCHEMY=y
CONFIG_MIPS_GPR=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_PREEMPT_VOLUNTARY=y
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -59,7 +58,6 @@ CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
-CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_AH=m
@@ -68,7 +66,6 @@ CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
@@ -114,12 +111,8 @@ CONFIG_ATALK=m
CONFIG_DEV_APPLETALK=m
CONFIG_IPDDP=m
CONFIG_IPDDP_ENCAP=y
-CONFIG_IPDDP_DECAP=y
CONFIG_X25=m
CONFIG_LAPB=m
-CONFIG_ECONET=m
-CONFIG_ECONET_AUNUDP=y
-CONFIG_ECONET_NATIVE=y
CONFIG_WAN_ROUTER=m
CONFIG_NET_SCHED=y
CONFIG_NET_SCH_CBQ=m
@@ -166,7 +159,6 @@ CONFIG_YAM=m
CONFIG_CFG80211=y
CONFIG_MAC80211=y
CONFIG_MTD=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
@@ -200,8 +192,6 @@ CONFIG_SMSC_PHY=m
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
CONFIG_MIPS_AU1X00_ENET=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_ATH_COMMON=y
CONFIG_ATH_DEBUG=y
CONFIG_ATH5K=y
@@ -286,14 +276,12 @@ CONFIG_USB_HIDDEV=y
CONFIG_USB_KBD=m
CONFIG_USB_MOUSE=m
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_MON=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PLATFORM=y
CONFIG_USB_STORAGE=m
-CONFIG_USB_LIBUSUAL=y
CONFIG_USB_SERIAL=y
CONFIG_USB_EZUSB=y
CONFIG_USB_SERIAL_GENERIC=y
diff --git a/arch/mips/configs/ip22_defconfig b/arch/mips/configs/ip22_defconfig
index ec8e9684296d..83e8fe2064aa 100644
--- a/arch/mips/configs/ip22_defconfig
+++ b/arch/mips/configs/ip22_defconfig
@@ -4,7 +4,6 @@ CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_HZ_1000=y
CONFIG_PREEMPT_VOLUNTARY=y
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
@@ -46,7 +45,6 @@ CONFIG_INET_IPCOMP=m
CONFIG_INET_XFRM_MODE_TRANSPORT=m
CONFIG_INET_XFRM_MODE_TUNNEL=m
CONFIG_INET_XFRM_MODE_BEET=m
-# CONFIG_INET_LRO is not set
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
@@ -139,7 +137,6 @@ CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m
CONFIG_IP_VS_FTP=m
CONFIG_NF_CONNTRACK_IPV4=m
-CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_AH=m
@@ -148,7 +145,6 @@ CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
@@ -163,7 +159,6 @@ CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
CONFIG_NF_CONNTRACK_IPV6=m
-CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
@@ -174,7 +169,6 @@ CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_HL=m
-CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
@@ -215,7 +209,6 @@ CONFIG_RFKILL=m
CONFIG_CONNECTOR=m
CONFIG_CDROM_PKTCDVD=m
CONFIG_ATA_OVER_ETH=m
-# CONFIG_MISC_DEVICES is not set
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
@@ -245,8 +238,6 @@ CONFIG_MDIO_BITBANG=m
CONFIG_NET_ETHERNET=y
CONFIG_SMC91X=m
CONFIG_SGISEEQ=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_HOSTAP=m
CONFIG_INPUT_MOUSEDEV=m
CONFIG_MOUSE_PS2=m
@@ -286,7 +277,6 @@ CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
CONFIG_QFMT_V2=m
-CONFIG_AUTOFS_FS=m
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=m
@@ -355,7 +345,6 @@ CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
CONFIG_DLM=m
CONFIG_DEBUG_MEMORY_INIT=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_KEYS=y
CONFIG_CRYPTO_FIPS=y
CONFIG_CRYPTO_NULL=m
diff --git a/arch/mips/configs/ip27_defconfig b/arch/mips/configs/ip27_defconfig
index e582069b44fd..a0d593248668 100644
--- a/arch/mips/configs/ip27_defconfig
+++ b/arch/mips/configs/ip27_defconfig
@@ -5,7 +5,6 @@ CONFIG_SMP=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_HZ_1000=y
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_IKCONFIG=y
@@ -104,7 +103,6 @@ CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_OSD=m
CONFIG_CDROM_PKTCDVD=m
CONFIG_ATA_OVER_ETH=m
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
@@ -325,7 +323,6 @@ CONFIG_XFS_POSIX_ACL=y
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
-CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
CONFIG_FSCACHE=m
@@ -342,7 +339,6 @@ CONFIG_NFS_V3=y
CONFIG_RPCSEC_GSS_KRB5=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_DLM=m
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_KEYS=y
CONFIG_SECURITYFS=y
CONFIG_CRYPTO_FIPS=y
@@ -378,7 +374,6 @@ CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_ZLIB=m
CONFIG_CRYPTO_LZO=m
CONFIG_CRYPTO_DEV_HIFN_795X=m
CONFIG_CRC_T10DIF=m
diff --git a/arch/mips/configs/ip28_defconfig b/arch/mips/configs/ip28_defconfig
index 4dbf6269b3f9..d0a4c2cfacf8 100644
--- a/arch/mips/configs/ip28_defconfig
+++ b/arch/mips/configs/ip28_defconfig
@@ -1,7 +1,6 @@
CONFIG_SGI_IP28=y
CONFIG_ARC_CONSOLE=y
CONFIG_PREEMPT_VOLUNTARY=y
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
@@ -35,10 +34,8 @@ CONFIG_IP_PNP_BOOTP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
CONFIG_TCP_MD5SIG=y
# CONFIG_IPV6 is not set
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=y
@@ -48,8 +45,6 @@ CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_NET_ETHERNET=y
CONFIG_SGISEEQ=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_MOUSE_PS2_ALPS is not set
# CONFIG_MOUSE_PS2_SYNAPTICS is not set
CONFIG_VT_HW_CONSOLE_BINDING=y
diff --git a/arch/mips/configs/ip32_defconfig b/arch/mips/configs/ip32_defconfig
index f9af98f63cff..1e26e58b9dc3 100644
--- a/arch/mips/configs/ip32_defconfig
+++ b/arch/mips/configs/ip32_defconfig
@@ -1,6 +1,5 @@
CONFIG_SGI_IP32=y
# CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -38,7 +37,6 @@ CONFIG_NET_IPGRE=m
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
-# CONFIG_INET_LRO is not set
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_MD5SIG=y
CONFIG_INET6_AH=m
@@ -76,8 +74,6 @@ CONFIG_NET_TULIP=y
CONFIG_DE2104X=m
CONFIG_TULIP=m
CONFIG_TULIP_MMIO=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_INPUT_EVDEV=m
# CONFIG_SERIO_I8042 is not set
CONFIG_SERIO_MACEPS2=y
@@ -87,7 +83,6 @@ CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_HW_RANDOM=y
CONFIG_WATCHDOG=y
-CONFIG_VIDEO_OUTPUT_CONTROL=y
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_GBE=y
@@ -117,7 +112,6 @@ CONFIG_EXT3_FS_SECURITY=y
CONFIG_QUOTA=y
CONFIG_QFMT_V1=m
CONFIG_QFMT_V2=m
-CONFIG_AUTOFS_FS=m
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=m
@@ -178,8 +172,6 @@ CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
CONFIG_MAGIC_SYSRQ=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_KEYS=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_CBC=y
diff --git a/arch/mips/configs/jazz_defconfig b/arch/mips/configs/jazz_defconfig
index 3019fce63cd3..9ad1c94376c8 100644
--- a/arch/mips/configs/jazz_defconfig
+++ b/arch/mips/configs/jazz_defconfig
@@ -1,7 +1,6 @@
CONFIG_MACH_JAZZ=y
CONFIG_OLIVETTI_M700=y
CONFIG_PREEMPT_VOLUNTARY=y
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -85,7 +84,6 @@ CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NF_CONNTRACK_IPV4=m
-CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_AH=m
@@ -94,7 +92,6 @@ CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
@@ -109,7 +106,6 @@ CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
CONFIG_NF_CONNTRACK_IPV6=m
-CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
@@ -120,7 +116,6 @@ CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_HL=m
-CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
@@ -276,7 +271,6 @@ CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_XFS_FS=m
CONFIG_XFS_QUOTA=y
-CONFIG_AUTOFS_FS=m
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=m
diff --git a/arch/mips/configs/jmr3927_defconfig b/arch/mips/configs/jmr3927_defconfig
index 9bc08f275120..af12281a5c33 100644
--- a/arch/mips/configs/jmr3927_defconfig
+++ b/arch/mips/configs/jmr3927_defconfig
@@ -18,23 +18,18 @@ CONFIG_IP_PNP_BOOTP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_PHYSMAP=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_NET_PCI=y
CONFIG_TC35815=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
@@ -58,5 +53,3 @@ CONFIG_PROC_KCORE=y
# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
diff --git a/arch/mips/configs/lasat_defconfig b/arch/mips/configs/lasat_defconfig
index e620a2c3eba4..947a35c7c46c 100644
--- a/arch/mips/configs/lasat_defconfig
+++ b/arch/mips/configs/lasat_defconfig
@@ -5,7 +5,6 @@ CONFIG_DS1603=y
CONFIG_LASAT_SYSCTL=y
CONFIG_HZ_1000=y
# CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_EXPERT=y
@@ -31,7 +30,6 @@ CONFIG_INET=y
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_MTD=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -44,8 +42,6 @@ CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_NET_PCI=y
CONFIG_PCNET32=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -56,7 +52,6 @@ CONFIG_SERIAL_8250_CONSOLE=y
# CONFIG_SERIAL_8250_PCI is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
diff --git a/arch/mips/configs/lemote2f_defconfig b/arch/mips/configs/lemote2f_defconfig
index 8df80c6383f2..02be95c1b712 100644
--- a/arch/mips/configs/lemote2f_defconfig
+++ b/arch/mips/configs/lemote2f_defconfig
@@ -7,7 +7,6 @@ CONFIG_HIGH_RES_TIMERS=y
CONFIG_PREEMPT=y
CONFIG_KEXEC=y
# CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -38,7 +37,6 @@ CONFIG_PM=y
CONFIG_HIBERNATION=y
CONFIG_PM_STD_PARTITION="/dev/hda3"
CONFIG_CPU_FREQ=y
-CONFIG_CPU_FREQ_DEBUG=y
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
@@ -83,8 +81,6 @@ CONFIG_NET_SCHED=y
CONFIG_NET_EMATCH=y
CONFIG_NET_CLS_ACT=y
CONFIG_BT=m
-CONFIG_BT_L2CAP=y
-CONFIG_BT_SCO=y
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
@@ -142,7 +138,6 @@ CONFIG_8139TOO=y
# CONFIG_8139TOO_PIO is not set
CONFIG_R8169=y
CONFIG_R8169_VLAN=y
-# CONFIG_NETDEV_10000 is not set
CONFIG_USB_USBNET=m
CONFIG_USB_NET_CDC_EEM=m
CONFIG_NETCONSOLE=m
@@ -205,7 +200,6 @@ CONFIG_USB_ZR364XX=m
CONFIG_USB_STKWEBCAM=m
CONFIG_USB_S2255=m
# CONFIG_RADIO_ADAPTERS is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=y
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_MODE_HELPERS=y
@@ -290,7 +284,6 @@ CONFIG_HID_WACOM=m
CONFIG_HID_ZEROPLUS=m
CONFIG_ZEROPLUS_FF=y
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_DYNAMIC_MINORS=y
CONFIG_USB_OTG_WHITELIST=y
CONFIG_USB_MON=y
@@ -313,10 +306,8 @@ CONFIG_USB_STORAGE_SDDR09=m
CONFIG_USB_STORAGE_SDDR55=m
CONFIG_USB_STORAGE_JUMPSHOT=m
CONFIG_USB_STORAGE_ALAUDA=m
-CONFIG_USB_LIBUSUAL=y
CONFIG_USB_SERIAL=m
CONFIG_USB_SERIAL_GENERIC=y
-CONFIG_USB_LED=m
CONFIG_USB_GADGET=m
CONFIG_USB_GADGET_M66592=y
CONFIG_MMC=m
@@ -341,7 +332,6 @@ CONFIG_XFS_POSIX_ACL=y
CONFIG_BTRFS_FS=m
CONFIG_QUOTA=y
CONFIG_QFMT_V2=m
-CONFIG_AUTOFS_FS=m
CONFIG_AUTOFS4_FS=m
CONFIG_FSCACHE=m
CONFIG_CACHEFILES=m
@@ -407,8 +397,6 @@ CONFIG_PRINTK_TIME=y
CONFIG_FRAME_WARN=1024
CONFIG_STRIP_ASM_SYMS=y
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_KEYS=y
CONFIG_CRYPTO_FIPS=y
CONFIG_CRYPTO_NULL=m
@@ -446,6 +434,5 @@ CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_DEFLATE=m
-CONFIG_CRYPTO_ZLIB=m
CONFIG_CRYPTO_LZO=m
CONFIG_CRC_T10DIF=y
diff --git a/arch/mips/configs/loongson3_defconfig b/arch/mips/configs/loongson3_defconfig
index 7f95c4b3ab2c..324dfee23dfb 100644
--- a/arch/mips/configs/loongson3_defconfig
+++ b/arch/mips/configs/loongson3_defconfig
@@ -95,7 +95,6 @@ CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
@@ -252,7 +251,6 @@ CONFIG_MEDIA_USB_SUPPORT=y
CONFIG_USB_VIDEO_CLASS=m
CONFIG_DRM=y
CONFIG_DRM_RADEON=y
-CONFIG_VIDEO_OUTPUT_CONTROL=y
CONFIG_FB_RADEON=y
CONFIG_LCD_CLASS_DEVICE=y
CONFIG_LCD_PLATFORM=m
@@ -335,7 +333,6 @@ CONFIG_STRIP_ASM_SYMS=y
CONFIG_MAGIC_SYSRQ=y
# CONFIG_SCHED_DEBUG is not set
# CONFIG_DEBUG_PREEMPT is not set
-# CONFIG_RCU_CPU_STALL_VERBOSE is not set
# CONFIG_FTRACE is not set
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
diff --git a/arch/mips/configs/malta_defconfig b/arch/mips/configs/malta_defconfig
index 078ecac071ab..396408404487 100644
--- a/arch/mips/configs/malta_defconfig
+++ b/arch/mips/configs/malta_defconfig
@@ -2,7 +2,6 @@ CONFIG_MIPS_MALTA=y
CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_CPU_MIPS32_R2=y
CONFIG_PAGE_SIZE_16KB=y
-CONFIG_MIPS_MT_SMP=y
CONFIG_NR_CPUS=8
CONFIG_HZ_100=y
CONFIG_SYSVIPC=y
diff --git a/arch/mips/configs/malta_kvm_defconfig b/arch/mips/configs/malta_kvm_defconfig
index e233f878afef..5691673a3327 100644
--- a/arch/mips/configs/malta_kvm_defconfig
+++ b/arch/mips/configs/malta_kvm_defconfig
@@ -2,7 +2,6 @@ CONFIG_MIPS_MALTA=y
CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_CPU_MIPS32_R2=y
CONFIG_PAGE_SIZE_16KB=y
-CONFIG_MIPS_MT_SMP=y
CONFIG_NR_CPUS=8
CONFIG_HZ_100=y
CONFIG_SYSVIPC=y
@@ -133,7 +132,6 @@ CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_TARGET_ECN=m
diff --git a/arch/mips/configs/malta_kvm_guest_defconfig b/arch/mips/configs/malta_kvm_guest_defconfig
index fbe085c328ab..e9cadb37d684 100644
--- a/arch/mips/configs/malta_kvm_guest_defconfig
+++ b/arch/mips/configs/malta_kvm_guest_defconfig
@@ -3,6 +3,7 @@ CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_CPU_MIPS32_R2=y
CONFIG_KVM_GUEST=y
CONFIG_PAGE_SIZE_16KB=y
+# CONFIG_MIPS_MT_SMP is not set
CONFIG_HZ_100=y
CONFIG_SYSVIPC=y
CONFIG_NO_HZ=y
@@ -132,7 +133,6 @@ CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_TARGET_ECN=m
diff --git a/arch/mips/configs/malta_qemu_32r6_defconfig b/arch/mips/configs/malta_qemu_32r6_defconfig
index cbf37dd0c490..77145ecaa23b 100644
--- a/arch/mips/configs/malta_qemu_32r6_defconfig
+++ b/arch/mips/configs/malta_qemu_32r6_defconfig
@@ -42,7 +42,6 @@ CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
-# CONFIG_INET_LRO is not set
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
diff --git a/arch/mips/configs/maltaaprp_defconfig b/arch/mips/configs/maltaaprp_defconfig
index 35f6ba260df8..cc2687cfdc13 100644
--- a/arch/mips/configs/maltaaprp_defconfig
+++ b/arch/mips/configs/maltaaprp_defconfig
@@ -43,7 +43,6 @@ CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
-# CONFIG_INET_LRO is not set
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
@@ -135,7 +134,6 @@ CONFIG_HW_RANDOM=y
CONFIG_POWER_RESET=y
CONFIG_POWER_RESET_SYSCON=y
# CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_MATROX=y
diff --git a/arch/mips/configs/maltasmvp_defconfig b/arch/mips/configs/maltasmvp_defconfig
index 900f14543eeb..d8c8f5fb8918 100644
--- a/arch/mips/configs/maltasmvp_defconfig
+++ b/arch/mips/configs/maltasmvp_defconfig
@@ -2,7 +2,6 @@ CONFIG_MIPS_MALTA=y
CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_CPU_MIPS32_R2=y
CONFIG_PAGE_SIZE_16KB=y
-CONFIG_MIPS_MT_SMP=y
CONFIG_SCHED_SMT=y
CONFIG_MIPS_CPS=y
CONFIG_NR_CPUS=8
@@ -46,7 +45,6 @@ CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
-# CONFIG_INET_LRO is not set
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
diff --git a/arch/mips/configs/maltasmvp_eva_defconfig b/arch/mips/configs/maltasmvp_eva_defconfig
index 8e2738b5e180..04827bc9f87f 100644
--- a/arch/mips/configs/maltasmvp_eva_defconfig
+++ b/arch/mips/configs/maltasmvp_eva_defconfig
@@ -3,7 +3,6 @@ CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_CPU_MIPS32_R2=y
CONFIG_CPU_MIPS32_3_5_FEATURES=y
CONFIG_PAGE_SIZE_16KB=y
-CONFIG_MIPS_MT_SMP=y
CONFIG_SCHED_SMT=y
CONFIG_MIPS_CPS=y
CONFIG_NR_CPUS=8
@@ -47,7 +46,6 @@ CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
-# CONFIG_INET_LRO is not set
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
@@ -140,7 +138,6 @@ CONFIG_HW_RANDOM=y
CONFIG_POWER_RESET=y
CONFIG_POWER_RESET_SYSCON=y
# CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_MATROX=y
diff --git a/arch/mips/configs/maltaup_defconfig b/arch/mips/configs/maltaup_defconfig
index 6dc4e309a691..7ea7c0ba2666 100644
--- a/arch/mips/configs/maltaup_defconfig
+++ b/arch/mips/configs/maltaup_defconfig
@@ -42,7 +42,6 @@ CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
-# CONFIG_INET_LRO is not set
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
@@ -134,7 +133,6 @@ CONFIG_HW_RANDOM=y
CONFIG_POWER_RESET=y
CONFIG_POWER_RESET_SYSCON=y
# CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_MATROX=y
diff --git a/arch/mips/configs/markeins_defconfig b/arch/mips/configs/markeins_defconfig
index 0f08e4623ee4..43ce6576ab1c 100644
--- a/arch/mips/configs/markeins_defconfig
+++ b/arch/mips/configs/markeins_defconfig
@@ -1,7 +1,6 @@
CONFIG_NEC_MARKEINS=y
CONFIG_HZ_1000=y
CONFIG_PREEMPT=y
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -92,7 +91,6 @@ CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
@@ -117,7 +115,6 @@ CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_HL=m
-CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
@@ -125,7 +122,6 @@ CONFIG_IP6_NF_RAW=m
CONFIG_FW_LOADER=m
CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
diff --git a/arch/mips/configs/mips_paravirt_defconfig b/arch/mips/configs/mips_paravirt_defconfig
index 84cfcb4bf2ea..accf0db1dc6f 100644
--- a/arch/mips/configs/mips_paravirt_defconfig
+++ b/arch/mips/configs/mips_paravirt_defconfig
@@ -39,7 +39,6 @@ CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
-# CONFIG_INET_LRO is not set
CONFIG_IPV6=y
# CONFIG_WIRELESS is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
diff --git a/arch/mips/configs/mpc30x_defconfig b/arch/mips/configs/mpc30x_defconfig
index a2c045fab6c5..3486b034f726 100644
--- a/arch/mips/configs/mpc30x_defconfig
+++ b/arch/mips/configs/mpc30x_defconfig
@@ -1,6 +1,5 @@
CONFIG_MACH_VR41XX=y
CONFIG_VICTOR_MPC30X=y
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_RELAY=y
@@ -31,8 +30,6 @@ CONFIG_BLK_DEV_SD=y
CONFIG_ATA=y
CONFIG_PATA_LEGACY=y
CONFIG_NETDEVICES=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_USB_PEGASUS=m
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
@@ -45,13 +42,11 @@ CONFIG_SERIAL_VR41XX_CONSOLE=y
CONFIG_GPIO_VR41XX=y
# CONFIG_HWMON is not set
# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=m
CONFIG_USB_OHCI_HCD=m
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_VR41XX=y
CONFIG_EXT2_FS=y
-CONFIG_AUTOFS_FS=y
CONFIG_AUTOFS4_FS=y
CONFIG_PROC_KCORE=y
CONFIG_CONFIGFS_FS=m
diff --git a/arch/mips/configs/msp71xx_defconfig b/arch/mips/configs/msp71xx_defconfig
index 201edfb2637d..3c8c16b10732 100644
--- a/arch/mips/configs/msp71xx_defconfig
+++ b/arch/mips/configs/msp71xx_defconfig
@@ -2,7 +2,6 @@ CONFIG_PMC_MSP=y
CONFIG_PMC_MSP7120_GW=y
CONFIG_CPU_MIPS32_R2=y
CONFIG_PREEMPT=y
-CONFIG_EXPERIMENTAL=y
CONFIG_LOCALVERSION="-pmc"
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
@@ -38,7 +37,6 @@ CONFIG_BRIDGE=y
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig
index f3f60056bc27..c3d0d0a6e044 100644
--- a/arch/mips/configs/mtx1_defconfig
+++ b/arch/mips/configs/mtx1_defconfig
@@ -1,7 +1,6 @@
CONFIG_MIPS_ALCHEMY=y
CONFIG_MIPS_MTX1=y
CONFIG_PREEMPT_VOLUNTARY=y
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -81,7 +80,6 @@ CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
-CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_AH=m
@@ -90,7 +88,6 @@ CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
@@ -98,7 +95,6 @@ CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
-CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
@@ -108,7 +104,6 @@ CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_HL=m
-CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
@@ -151,12 +146,8 @@ CONFIG_ATALK=m
CONFIG_DEV_APPLETALK=m
CONFIG_IPDDP=m
CONFIG_IPDDP_ENCAP=y
-CONFIG_IPDDP_DECAP=y
CONFIG_X25=m
CONFIG_LAPB=m
-CONFIG_ECONET=m
-CONFIG_ECONET_AUNUDP=y
-CONFIG_ECONET_NATIVE=y
CONFIG_WAN_ROUTER=m
CONFIG_NET_SCHED=y
CONFIG_NET_SCH_CBQ=m
@@ -225,8 +216,6 @@ CONFIG_TOSHIBA_FIR=m
CONFIG_VLSI_FIR=m
CONFIG_MCS_FIR=m
CONFIG_BT=m
-CONFIG_BT_L2CAP=y
-CONFIG_BT_SCO=y
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
@@ -246,7 +235,6 @@ CONFIG_BT_HCIBTUART=m
CONFIG_BT_HCIVHCI=m
CONFIG_CONNECTOR=m
CONFIG_MTD=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
@@ -257,7 +245,6 @@ CONFIG_MTD_PHYSMAP=y
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=65536
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=m
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_SG=m
@@ -596,7 +583,6 @@ CONFIG_USB_STORAGE_SDDR55=m
CONFIG_USB_STORAGE_JUMPSHOT=m
CONFIG_USB_STORAGE_ALAUDA=m
CONFIG_USB_STORAGE_KARMA=m
-CONFIG_USB_LIBUSUAL=y
CONFIG_USB_MDC800=m
CONFIG_USB_MICROTEK=m
CONFIG_USB_SERIAL=m
@@ -640,7 +626,6 @@ CONFIG_USB_ADUTUX=m
CONFIG_USB_RIO500=m
CONFIG_USB_LEGOTOWER=m
CONFIG_USB_LCD=m
-CONFIG_USB_LED=m
CONFIG_USB_CYPRESS_CY7C63=m
CONFIG_USB_CYTHERM=m
CONFIG_USB_IDMOUSE=m
diff --git a/arch/mips/configs/nlm_xlp_defconfig b/arch/mips/configs/nlm_xlp_defconfig
index 07d01827a973..7357248b3d7a 100644
--- a/arch/mips/configs/nlm_xlp_defconfig
+++ b/arch/mips/configs/nlm_xlp_defconfig
@@ -6,7 +6,6 @@ CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=65536
CONFIG_SMP=y
# CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -183,14 +182,12 @@ CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m
CONFIG_IP_VS_FTP=m
CONFIG_NF_CONNTRACK_IPV4=m
-CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
@@ -262,7 +259,6 @@ CONFIG_ATALK=m
CONFIG_DEV_APPLETALK=m
CONFIG_IPDDP=m
CONFIG_IPDDP_ENCAP=y
-CONFIG_IPDDP_DECAP=y
CONFIG_X25=m
CONFIG_LAPB=m
CONFIG_WAN_ROUTER=m
@@ -317,7 +313,6 @@ CONFIG_DEVTMPFS_MOUNT=y
CONFIG_CONNECTOR=y
CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -607,7 +602,6 @@ CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_ZLIB=m
CONFIG_CRYPTO_LZO=m
CONFIG_CRC_CCITT=m
CONFIG_CRC7=m
diff --git a/arch/mips/configs/nlm_xlr_defconfig b/arch/mips/configs/nlm_xlr_defconfig
index f59969acb724..1e18fd7de209 100644
--- a/arch/mips/configs/nlm_xlr_defconfig
+++ b/arch/mips/configs/nlm_xlr_defconfig
@@ -7,7 +7,6 @@ CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_PREEMPT_VOLUNTARY=y
CONFIG_KEXEC=y
-CONFIG_EXPERIMENTAL=y
CONFIG_CROSS_COMPILE=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
@@ -163,7 +162,6 @@ CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m
CONFIG_IP_VS_FTP=m
CONFIG_NF_CONNTRACK_IPV4=m
-CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
@@ -171,7 +169,6 @@ CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
@@ -186,7 +183,6 @@ CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
CONFIG_NF_CONNTRACK_IPV6=m
-CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
@@ -197,7 +193,6 @@ CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_HL=m
-CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
@@ -245,12 +240,8 @@ CONFIG_ATALK=m
CONFIG_DEV_APPLETALK=m
CONFIG_IPDDP=m
CONFIG_IPDDP_ENCAP=y
-CONFIG_IPDDP_DECAP=y
CONFIG_X25=m
CONFIG_LAPB=m
-CONFIG_ECONET=m
-CONFIG_ECONET_AUNUDP=y
-CONFIG_ECONET_NATIVE=y
CONFIG_WAN_ROUTER=m
CONFIG_PHONET=m
CONFIG_IEEE802154=m
@@ -308,7 +299,6 @@ CONFIG_BLK_DEV_OSD=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=65536
CONFIG_CDROM_PKTCDVD=y
-CONFIG_MISC_DEVICES=y
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
@@ -369,7 +359,6 @@ CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_DS1374=y
# CONFIG_HWMON is not set
# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_UIO=y
CONFIG_UIO_PDRV=m
@@ -522,7 +511,6 @@ CONFIG_SCHEDSTATS=y
CONFIG_TIMER_STATS=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_MEMORY_INIT=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_SCHED_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_KGDB=y
@@ -568,7 +556,6 @@ CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_ZLIB=m
CONFIG_CRYPTO_LZO=m
CONFIG_CRC_CCITT=m
CONFIG_CRC7=m
diff --git a/arch/mips/configs/omega2p_defconfig b/arch/mips/configs/omega2p_defconfig
new file mode 100644
index 000000000000..e2731c3cc7e7
--- /dev/null
+++ b/arch/mips/configs/omega2p_defconfig
@@ -0,0 +1,129 @@
+CONFIG_RALINK=y
+CONFIG_SOC_MT7620=y
+CONFIG_DTB_OMEGA2P=y
+CONFIG_CPU_MIPS32_R2=y
+# CONFIG_COMPACTION is not set
+CONFIG_HZ_100=y
+CONFIG_PREEMPT=y
+# CONFIG_SECCOMP is not set
+CONFIG_MIPS_CMDLINE_FROM_BOOTLOADER=y
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_CGROUPS=y
+CONFIG_MEMCG=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_NAMESPACES=y
+CONFIG_USER_NS=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_EMBEDDED=y
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_SLUB_DEBUG is not set
+# CONFIG_COMPAT_BRK is not set
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+# CONFIG_SUSPEND is not set
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_WIRELESS is not set
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+# CONFIG_FW_LOADER is not set
+# CONFIG_ALLOW_DEV_COREDUMP is not set
+CONFIG_NETDEVICES=y
+# CONFIG_ETHERNET is not set
+# CONFIG_WLAN is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_LEGACY_PTY_COUNT=2
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=3
+CONFIG_SERIAL_8250_RUNTIME_UARTS=3
+CONFIG_SERIAL_OF_PLATFORM=y
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_VGA_CONSOLE is not set
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_HCD_PLATFORM=y
+CONFIG_MMC=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_MEMORY=y
+CONFIG_PHY_RALINK_USB=y
+# CONFIG_DNOTIFY is not set
+CONFIG_PROC_KCORE=y
+# CONFIG_PROC_PAGE_MONITOR is not set
+CONFIG_TMPFS=y
+CONFIG_CONFIGFS_FS=y
+# CONFIG_NETWORK_FILESYSTEMS is not set
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_CODEPAGE_737=y
+CONFIG_NLS_CODEPAGE_775=y
+CONFIG_NLS_CODEPAGE_850=y
+CONFIG_NLS_CODEPAGE_852=y
+CONFIG_NLS_CODEPAGE_855=y
+CONFIG_NLS_CODEPAGE_857=y
+CONFIG_NLS_CODEPAGE_860=y
+CONFIG_NLS_CODEPAGE_861=y
+CONFIG_NLS_CODEPAGE_862=y
+CONFIG_NLS_CODEPAGE_863=y
+CONFIG_NLS_CODEPAGE_864=y
+CONFIG_NLS_CODEPAGE_865=y
+CONFIG_NLS_CODEPAGE_866=y
+CONFIG_NLS_CODEPAGE_869=y
+CONFIG_NLS_CODEPAGE_936=y
+CONFIG_NLS_CODEPAGE_950=y
+CONFIG_NLS_CODEPAGE_932=y
+CONFIG_NLS_CODEPAGE_949=y
+CONFIG_NLS_CODEPAGE_874=y
+CONFIG_NLS_ISO8859_8=y
+CONFIG_NLS_CODEPAGE_1250=y
+CONFIG_NLS_CODEPAGE_1251=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_ISO8859_2=y
+CONFIG_NLS_ISO8859_3=y
+CONFIG_NLS_ISO8859_4=y
+CONFIG_NLS_ISO8859_5=y
+CONFIG_NLS_ISO8859_6=y
+CONFIG_NLS_ISO8859_7=y
+CONFIG_NLS_ISO8859_9=y
+CONFIG_NLS_ISO8859_13=y
+CONFIG_NLS_ISO8859_14=y
+CONFIG_NLS_ISO8859_15=y
+CONFIG_NLS_KOI8_R=y
+CONFIG_NLS_KOI8_U=y
+CONFIG_NLS_UTF8=y
+CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_INFO=y
+CONFIG_STRIP_ASM_SYMS=y
+CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_PANIC_TIMEOUT=10
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_PREEMPT is not set
+CONFIG_STACKTRACE=y
+# CONFIG_FTRACE is not set
+CONFIG_CRYPTO_DEFLATE=y
+CONFIG_CRYPTO_LZO=y
+CONFIG_CRC16=y
+CONFIG_XZ_DEC=y
diff --git a/arch/mips/configs/pistachio_defconfig b/arch/mips/configs/pistachio_defconfig
index 7d32fbbca962..b22a3cf149b6 100644
--- a/arch/mips/configs/pistachio_defconfig
+++ b/arch/mips/configs/pistachio_defconfig
@@ -47,6 +47,8 @@ CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
@@ -207,7 +209,7 @@ CONFIG_IMGPDC_WDT=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_REGULATOR_GPIO=y
CONFIG_MEDIA_SUPPORT=y
-CONFIG_MEDIA_RC_SUPPORT=y
+CONFIG_RC_CORE=y
# CONFIG_RC_DECODERS is not set
CONFIG_RC_DEVICES=y
CONFIG_IR_IMG=y
@@ -292,7 +294,8 @@ CONFIG_SQUASHFS_LZO=y
CONFIG_PSTORE=y
CONFIG_PSTORE_CONSOLE=y
CONFIG_PSTORE_RAM=y
-# CONFIG_NETWORK_FILESYSTEMS is not set
+CONFIG_NFS_FS=y
+CONFIG_ROOT_NFS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_ASCII=m
diff --git a/arch/mips/configs/pnx8335_stb225_defconfig b/arch/mips/configs/pnx8335_stb225_defconfig
index c887066ecc2a..81b5eb89446c 100644
--- a/arch/mips/configs/pnx8335_stb225_defconfig
+++ b/arch/mips/configs/pnx8335_stb225_defconfig
@@ -5,7 +5,6 @@ CONFIG_HIGH_RES_TIMERS=y
CONFIG_HZ_128=y
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
@@ -27,12 +26,10 @@ CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_INET_AH=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -41,15 +38,12 @@ CONFIG_MTD_CFI_GEOMETRY=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_PHYSMAP=y
CONFIG_BLK_DEV_LOOP=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_BLK_DEV_SD=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_ATA=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_EVDEV=m
CONFIG_INPUT_EVBUG=m
@@ -94,4 +88,3 @@ CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_UTF8=m
-CONFIG_SYSCTL_SYSCALL_CHECK=y
diff --git a/arch/mips/configs/qi_lb60_defconfig b/arch/mips/configs/qi_lb60_defconfig
index d7bb8cce1068..3f1333517405 100644
--- a/arch/mips/configs/qi_lb60_defconfig
+++ b/arch/mips/configs/qi_lb60_defconfig
@@ -34,7 +34,6 @@ CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
CONFIG_TCP_CONG_ADVANCED=y
# CONFIG_TCP_CONG_BIC is not set
@@ -109,7 +108,6 @@ CONFIG_USB_GADGET_DEBUG=y
CONFIG_USB_ETH=y
# CONFIG_USB_ETH_RNDIS is not set
CONFIG_MMC=y
-CONFIG_MMC_UNSAFE_RESUME=y
# CONFIG_MMC_BLOCK_BOUNCE is not set
CONFIG_MMC_JZ4740=y
CONFIG_RTC_CLASS=y
@@ -183,7 +181,6 @@ CONFIG_PANIC_ON_OOPS=y
# CONFIG_FTRACE is not set
CONFIG_KGDB=y
CONFIG_RUNTIME_DEBUG=y
-CONFIG_CRYPTO_ZLIB=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_FONTS=y
CONFIG_FONT_SUN8x16=y
diff --git a/arch/mips/configs/rb532_defconfig b/arch/mips/configs/rb532_defconfig
index 5d9d708e12e5..6fa56c6e53f5 100644
--- a/arch/mips/configs/rb532_defconfig
+++ b/arch/mips/configs/rb532_defconfig
@@ -3,7 +3,6 @@ CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_HZ_100=y
# CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -39,7 +38,6 @@ CONFIG_SYN_COOKIES=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
CONFIG_INET_DIAG=m
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_CUBIC=m
@@ -114,7 +112,6 @@ CONFIG_NET_CLS_IND=y
CONFIG_HAMRADIO=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_BLOCK2MTD=y
CONFIG_MTD_NAND=y
@@ -129,8 +126,6 @@ CONFIG_NET_ETHERNET=y
CONFIG_KORINA=y
CONFIG_NET_PCI=y
CONFIG_VIA_RHINE=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_ATMEL=m
CONFIG_PPP=m
CONFIG_PPP_MULTILINK=y
@@ -183,7 +178,6 @@ CONFIG_BSD_DISKLABEL=y
CONFIG_STRIP_ASM_SYMS=y
CONFIG_CRYPTO=y
CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_ZLIB=y
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC16=m
CONFIG_LIBCRC32C=m
diff --git a/arch/mips/configs/rbtx49xx_defconfig b/arch/mips/configs/rbtx49xx_defconfig
index 43d55e5abacb..fb195e29e449 100644
--- a/arch/mips/configs/rbtx49xx_defconfig
+++ b/arch/mips/configs/rbtx49xx_defconfig
@@ -31,12 +31,10 @@ CONFIG_IP_PNP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=m
CONFIG_MTD_BLOCK_RO=m
CONFIG_MTD_CFI=y
@@ -50,7 +48,6 @@ CONFIG_MTD_NAND_TXX9NDFMC=m
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=8192
-# CONFIG_MISC_DEVICES is not set
CONFIG_IDE=y
CONFIG_BLK_DEV_IDE_TX4938=y
CONFIG_BLK_DEV_IDE_TX4939=y
@@ -60,8 +57,6 @@ CONFIG_SMC91X=y
CONFIG_NE2000=y
CONFIG_NET_PCI=y
CONFIG_TC35815=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_WLAN is not set
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
@@ -108,5 +103,3 @@ CONFIG_NFS_V3=y
CONFIG_ROOT_NFS=y
CONFIG_STRIP_ASM_SYMS=y
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig
index c2b4e3f33a73..99679e514042 100644
--- a/arch/mips/configs/rm200_defconfig
+++ b/arch/mips/configs/rm200_defconfig
@@ -3,7 +3,6 @@ CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_ARC_CONSOLE=y
CONFIG_HZ_1000=y
CONFIG_PREEMPT_VOLUNTARY=y
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -94,7 +93,6 @@ CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NF_CONNTRACK_IPV4=m
-CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_AH=m
@@ -103,7 +101,6 @@ CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
@@ -118,7 +115,6 @@ CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
CONFIG_NF_CONNTRACK_IPV6=m
-CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
@@ -129,7 +125,6 @@ CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_HL=m
-CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
@@ -214,7 +209,6 @@ CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_SX8=m
-CONFIG_BLK_DEV_UB=m
CONFIG_BLK_DEV_RAM=m
CONFIG_CDROM_PKTCDVD=m
CONFIG_ATA_OVER_ETH=m
@@ -353,7 +347,6 @@ CONFIG_USB_SERIAL_OMNINET=m
CONFIG_USB_RIO500=m
CONFIG_USB_LEGOTOWER=m
CONFIG_USB_LCD=m
-CONFIG_USB_LED=m
CONFIG_USB_CYTHERM=m
CONFIG_USB_SISUSBVGA=m
CONFIG_USB_LD=m
@@ -366,7 +359,6 @@ CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_XFS_FS=m
CONFIG_XFS_QUOTA=y
-CONFIG_AUTOFS_FS=m
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=m
diff --git a/arch/mips/configs/rt305x_defconfig b/arch/mips/configs/rt305x_defconfig
index d14ae2fa7d13..c695b7b1c4ae 100644
--- a/arch/mips/configs/rt305x_defconfig
+++ b/arch/mips/configs/rt305x_defconfig
@@ -5,7 +5,6 @@ CONFIG_CPU_MIPS32_R2=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_HZ_100=y
# CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_HIGH_RES_TIMERS=y
@@ -44,7 +43,6 @@ CONFIG_SYN_COOKIES=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
CONFIG_TCP_CONG_ADVANCED=y
# CONFIG_TCP_CONG_BIC is not set
diff --git a/arch/mips/configs/sb1250_swarm_defconfig b/arch/mips/configs/sb1250_swarm_defconfig
index 7fca09fedb59..c724bdd6a7e6 100644
--- a/arch/mips/configs/sb1250_swarm_defconfig
+++ b/arch/mips/configs/sb1250_swarm_defconfig
@@ -4,7 +4,6 @@ CONFIG_64BIT=y
CONFIG_SMP=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_HZ_1000=y
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=15
CONFIG_CGROUPS=y
diff --git a/arch/mips/configs/tb0219_defconfig b/arch/mips/configs/tb0219_defconfig
index 11f51505d562..4041597e3170 100644
--- a/arch/mips/configs/tb0219_defconfig
+++ b/arch/mips/configs/tb0219_defconfig
@@ -1,6 +1,5 @@
CONFIG_MACH_VR41XX=y
CONFIG_TANBAC_TB0219=y
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_SYSFS_DEPRECATED_V2=y
@@ -31,7 +30,6 @@ CONFIG_SYN_COOKIES=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_NETWORK_SECMARK=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
@@ -40,7 +38,6 @@ CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_XIP=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_NETDEVICES=y
CONFIG_PHYLIB=m
CONFIG_MARVELL_PHY=m
@@ -57,7 +54,6 @@ CONFIG_VIA_RHINE=y
CONFIG_VIA_RHINE_MMIO=y
CONFIG_R8169=y
CONFIG_VIA_VELOCITY=y
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -70,7 +66,6 @@ CONFIG_SERIAL_VR41XX_CONSOLE=y
CONFIG_GPIO_TB0219=y
# CONFIG_HWMON is not set
# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=m
CONFIG_USB_MON=m
CONFIG_USB_EHCI_HCD=m
@@ -91,6 +86,5 @@ CONFIG_NFS_V3=y
CONFIG_ROOT_NFS=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="cca=3 mem=64M console=ttyVR0,115200 ip=any root=/dev/nfs"
diff --git a/arch/mips/configs/tb0226_defconfig b/arch/mips/configs/tb0226_defconfig
index 9327b3af32cd..565f0441c50d 100644
--- a/arch/mips/configs/tb0226_defconfig
+++ b/arch/mips/configs/tb0226_defconfig
@@ -1,6 +1,5 @@
CONFIG_MACH_VR41XX=y
CONFIG_TANBAC_TB0226=y
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_SYSFS_DEPRECATED_V2=y
@@ -29,7 +28,6 @@ CONFIG_SYN_COOKIES=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_NETWORK_SECMARK=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
@@ -37,7 +35,6 @@ CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_XIP=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_SCSI_MULTI_LUN=y
@@ -49,8 +46,6 @@ CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_NET_PCI=y
CONFIG_E100=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_USB_CATC=m
CONFIG_USB_KAWETH=m
CONFIG_USB_PEGASUS=m
@@ -66,7 +61,6 @@ CONFIG_SERIAL_VR41XX_CONSOLE=y
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=y
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
@@ -87,7 +81,6 @@ CONFIG_NFS_V3=y
CONFIG_ROOT_NFS=y
CONFIG_NFSD=m
CONFIG_NFSD_V3=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="cca=3 mem=32M console=ttyVR0,115200"
CONFIG_CRC32=m
diff --git a/arch/mips/configs/tb0287_defconfig b/arch/mips/configs/tb0287_defconfig
index a967289b7970..a702be602fb9 100644
--- a/arch/mips/configs/tb0287_defconfig
+++ b/arch/mips/configs/tb0287_defconfig
@@ -1,5 +1,4 @@
CONFIG_MACH_VR41XX=y
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_SYSFS_DEPRECATED_V2=y
@@ -31,7 +30,6 @@ CONFIG_SYN_COOKIES=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=y
CONFIG_TCP_CONG_CUBIC=m
@@ -43,7 +41,6 @@ CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_XIP=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_BLK_DEV_SD=y
CONFIG_SCSI_SCAN_ASYNC=y
# CONFIG_SCSI_LOWLEVEL is not set
@@ -64,7 +61,6 @@ CONFIG_VIA_RHINE=y
CONFIG_VIA_RHINE_MMIO=y
CONFIG_R8169=y
CONFIG_VIA_VELOCITY=y
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -76,7 +72,6 @@ CONFIG_SERIAL_VR41XX_CONSOLE=y
CONFIG_GPIO_VR41XX=y
# CONFIG_HWMON is not set
CONFIG_MFD_SM501=y
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
CONFIG_FB_SM501=y
# CONFIG_VGA_CONSOLE is not set
diff --git a/arch/mips/configs/vocore2_defconfig b/arch/mips/configs/vocore2_defconfig
new file mode 100644
index 000000000000..9121e4194a63
--- /dev/null
+++ b/arch/mips/configs/vocore2_defconfig
@@ -0,0 +1,129 @@
+CONFIG_RALINK=y
+CONFIG_SOC_MT7620=y
+CONFIG_DTB_VOCORE2=y
+CONFIG_CPU_MIPS32_R2=y
+# CONFIG_COMPACTION is not set
+CONFIG_HZ_100=y
+CONFIG_PREEMPT=y
+# CONFIG_SECCOMP is not set
+CONFIG_MIPS_CMDLINE_FROM_BOOTLOADER=y
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_CGROUPS=y
+CONFIG_MEMCG=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_NAMESPACES=y
+CONFIG_USER_NS=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_EMBEDDED=y
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_SLUB_DEBUG is not set
+# CONFIG_COMPAT_BRK is not set
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+# CONFIG_SUSPEND is not set
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_WIRELESS is not set
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+# CONFIG_FW_LOADER is not set
+# CONFIG_ALLOW_DEV_COREDUMP is not set
+CONFIG_NETDEVICES=y
+# CONFIG_ETHERNET is not set
+# CONFIG_WLAN is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_LEGACY_PTY_COUNT=2
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=3
+CONFIG_SERIAL_8250_RUNTIME_UARTS=3
+CONFIG_SERIAL_OF_PLATFORM=y
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_VGA_CONSOLE is not set
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_HCD_PLATFORM=y
+CONFIG_MMC=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_MEMORY=y
+CONFIG_PHY_RALINK_USB=y
+# CONFIG_DNOTIFY is not set
+CONFIG_PROC_KCORE=y
+# CONFIG_PROC_PAGE_MONITOR is not set
+CONFIG_TMPFS=y
+CONFIG_CONFIGFS_FS=y
+# CONFIG_NETWORK_FILESYSTEMS is not set
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_CODEPAGE_737=y
+CONFIG_NLS_CODEPAGE_775=y
+CONFIG_NLS_CODEPAGE_850=y
+CONFIG_NLS_CODEPAGE_852=y
+CONFIG_NLS_CODEPAGE_855=y
+CONFIG_NLS_CODEPAGE_857=y
+CONFIG_NLS_CODEPAGE_860=y
+CONFIG_NLS_CODEPAGE_861=y
+CONFIG_NLS_CODEPAGE_862=y
+CONFIG_NLS_CODEPAGE_863=y
+CONFIG_NLS_CODEPAGE_864=y
+CONFIG_NLS_CODEPAGE_865=y
+CONFIG_NLS_CODEPAGE_866=y
+CONFIG_NLS_CODEPAGE_869=y
+CONFIG_NLS_CODEPAGE_936=y
+CONFIG_NLS_CODEPAGE_950=y
+CONFIG_NLS_CODEPAGE_932=y
+CONFIG_NLS_CODEPAGE_949=y
+CONFIG_NLS_CODEPAGE_874=y
+CONFIG_NLS_ISO8859_8=y
+CONFIG_NLS_CODEPAGE_1250=y
+CONFIG_NLS_CODEPAGE_1251=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_ISO8859_2=y
+CONFIG_NLS_ISO8859_3=y
+CONFIG_NLS_ISO8859_4=y
+CONFIG_NLS_ISO8859_5=y
+CONFIG_NLS_ISO8859_6=y
+CONFIG_NLS_ISO8859_7=y
+CONFIG_NLS_ISO8859_9=y
+CONFIG_NLS_ISO8859_13=y
+CONFIG_NLS_ISO8859_14=y
+CONFIG_NLS_ISO8859_15=y
+CONFIG_NLS_KOI8_R=y
+CONFIG_NLS_KOI8_U=y
+CONFIG_NLS_UTF8=y
+CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_INFO=y
+CONFIG_STRIP_ASM_SYMS=y
+CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_PANIC_TIMEOUT=10
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_PREEMPT is not set
+CONFIG_STACKTRACE=y
+# CONFIG_FTRACE is not set
+CONFIG_CRYPTO_DEFLATE=y
+CONFIG_CRYPTO_LZO=y
+CONFIG_CRC16=y
+CONFIG_XZ_DEC=y
diff --git a/arch/mips/configs/workpad_defconfig b/arch/mips/configs/workpad_defconfig
index ee4b2be43c44..a84eac409c9c 100644
--- a/arch/mips/configs/workpad_defconfig
+++ b/arch/mips/configs/workpad_defconfig
@@ -1,6 +1,5 @@
CONFIG_MACH_VR41XX=y
CONFIG_IBM_WORKPAD=y
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -28,13 +27,10 @@ CONFIG_IP_MULTICAST=y
# CONFIG_IPV6 is not set
CONFIG_NETWORK_SECMARK=y
CONFIG_BLK_DEV_RAM=m
-# CONFIG_MISC_DEVICES is not set
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECS=m
CONFIG_IDE_GENERIC=y
CONFIG_NETDEVICES=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_NET_PCMCIA=y
CONFIG_PCMCIA_3C589=m
CONFIG_PCMCIA_3C574=m
diff --git a/arch/mips/dec/int-handler.S b/arch/mips/dec/int-handler.S
index 1910223a9c02..cea2bb1621e6 100644
--- a/arch/mips/dec/int-handler.S
+++ b/arch/mips/dec/int-handler.S
@@ -147,23 +147,12 @@
* Find irq with highest priority
*/
# open coded PTR_LA t1, cpu_mask_nr_tbl
-#if (_MIPS_SZPTR == 32)
+#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
# open coded la t1, cpu_mask_nr_tbl
lui t1, %hi(cpu_mask_nr_tbl)
addiu t1, %lo(cpu_mask_nr_tbl)
-
-#endif
-#if (_MIPS_SZPTR == 64)
- # open coded dla t1, cpu_mask_nr_tbl
- .set push
- .set noat
- lui t1, %highest(cpu_mask_nr_tbl)
- lui AT, %hi(cpu_mask_nr_tbl)
- daddiu t1, t1, %higher(cpu_mask_nr_tbl)
- daddiu AT, AT, %lo(cpu_mask_nr_tbl)
- dsll t1, 32
- daddu t1, t1, AT
- .set pop
+#else
+#error GCC `-msym32' option required for 64-bit DECstation builds
#endif
1: lw t2,(t1)
nop
@@ -214,23 +203,12 @@
* Find irq with highest priority
*/
# open coded PTR_LA t1,asic_mask_nr_tbl
-#if (_MIPS_SZPTR == 32)
+#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
# open coded la t1, asic_mask_nr_tbl
lui t1, %hi(asic_mask_nr_tbl)
addiu t1, %lo(asic_mask_nr_tbl)
-
-#endif
-#if (_MIPS_SZPTR == 64)
- # open coded dla t1, asic_mask_nr_tbl
- .set push
- .set noat
- lui t1, %highest(asic_mask_nr_tbl)
- lui AT, %hi(asic_mask_nr_tbl)
- daddiu t1, t1, %higher(asic_mask_nr_tbl)
- daddiu AT, AT, %lo(asic_mask_nr_tbl)
- dsll t1, 32
- daddu t1, t1, AT
- .set pop
+#else
+#error GCC `-msym32' option required for 64-bit DECstation builds
#endif
2: lw t2,(t1)
nop
diff --git a/arch/mips/fw/arc/init.c b/arch/mips/fw/arc/init.c
index 629b24db0d3a..008555969534 100644
--- a/arch/mips/fw/arc/init.c
+++ b/arch/mips/fw/arc/init.c
@@ -51,7 +51,7 @@ void __init prom_init(void)
#endif
#ifdef CONFIG_SGI_IP27
{
- extern struct plat_smp_ops ip27_smp_ops;
+ extern const struct plat_smp_ops ip27_smp_ops;
register_smp_ops(&ip27_smp_ops);
}
diff --git a/arch/mips/generic/Kconfig b/arch/mips/generic/Kconfig
index a606b3f9196c..e0436aaf7f38 100644
--- a/arch/mips/generic/Kconfig
+++ b/arch/mips/generic/Kconfig
@@ -9,11 +9,37 @@ config LEGACY_BOARDS
kernel is booted without being provided with an FDT via the UHI
boot protocol.
+config YAMON_DT_SHIM
+ bool
+ help
+ Select this from your board if the board uses the YAMON bootloader
+ and you wish to include code which helps translate various
+ YAMON-provided environment variables into a device tree properties.
+
+comment "Legacy (non-UHI/non-FIT) Boards"
+
config LEGACY_BOARD_SEAD3
bool "Support MIPS SEAD-3 boards"
select LEGACY_BOARDS
+ select YAMON_DT_SHIM
help
Enable this to include support for booting on MIPS SEAD-3 FPGA-based
development boards, which boot using a legacy boot protocol.
+comment "FIT/UHI Boards"
+
+config FIT_IMAGE_FDT_BOSTON
+ bool "Include FDT for MIPS Boston boards"
+ help
+ Enable this to include the FDT for the MIPS Boston development board
+ from Imagination Technologies in the FIT kernel image. You should
+ enable this if you wish to boot on a MIPS Boston board, as it is
+ expected by the bootloader.
+
+config FIT_IMAGE_FDT_NI169445
+ bool "Include FDT for NI 169445"
+ help
+ Enable this to include the FDT for the 169445 platform from
+ National Instruments in the FIT kernel image.
+
endif
diff --git a/arch/mips/generic/Makefile b/arch/mips/generic/Makefile
index acb9b6d62b16..56b3ea565ed9 100644
--- a/arch/mips/generic/Makefile
+++ b/arch/mips/generic/Makefile
@@ -12,5 +12,6 @@ obj-y += init.o
obj-y += irq.o
obj-y += proc.o
+obj-$(CONFIG_YAMON_DT_SHIM) += yamon-dt.o
obj-$(CONFIG_LEGACY_BOARD_SEAD3) += board-sead3.o
obj-$(CONFIG_KEXEC) += kexec.o
diff --git a/arch/mips/generic/Platform b/arch/mips/generic/Platform
index 9a30d69e2281..f5312dfa8184 100644
--- a/arch/mips/generic/Platform
+++ b/arch/mips/generic/Platform
@@ -12,3 +12,7 @@ platform-$(CONFIG_MIPS_GENERIC) += generic/
cflags-$(CONFIG_MIPS_GENERIC) += -I$(srctree)/arch/mips/include/asm/mach-generic
load-$(CONFIG_MIPS_GENERIC) += 0xffffffff80100000
all-$(CONFIG_MIPS_GENERIC) := vmlinux.gz.itb
+
+its-y := vmlinux.its.S
+its-$(CONFIG_FIT_IMAGE_FDT_BOSTON) += board-boston.its.S
+its-$(CONFIG_FIT_IMAGE_FDT_NI169445) += board-ni169445.its.S
diff --git a/arch/mips/generic/board-boston.its.S b/arch/mips/generic/board-boston.its.S
new file mode 100644
index 000000000000..a7f51f97b910
--- /dev/null
+++ b/arch/mips/generic/board-boston.its.S
@@ -0,0 +1,22 @@
+/ {
+ images {
+ fdt@boston {
+ description = "img,boston Device Tree";
+ data = /incbin/("boot/dts/img/boston.dtb");
+ type = "flat_dt";
+ arch = "mips";
+ compression = "none";
+ hash@0 {
+ algo = "sha1";
+ };
+ };
+ };
+
+ configurations {
+ conf@boston {
+ description = "Boston Linux kernel";
+ kernel = "kernel@0";
+ fdt = "fdt@boston";
+ };
+ };
+};
diff --git a/arch/mips/generic/board-ni169445.its.S b/arch/mips/generic/board-ni169445.its.S
new file mode 100644
index 000000000000..d12e12fe90be
--- /dev/null
+++ b/arch/mips/generic/board-ni169445.its.S
@@ -0,0 +1,22 @@
+{
+ images {
+ fdt@ni169445 {
+ description = "NI 169445 device tree";
+ data = /incbin/("boot/dts/ni/169445.dtb");
+ type = "flat_dt";
+ arch = "mips";
+ compression = "none";
+ hash@0 {
+ algo = "sha1";
+ };
+ };
+ };
+
+ configurations {
+ conf@ni169445 {
+ description = "NI 169445 Linux Kernel";
+ kernel = "kernel@0";
+ fdt = "fdt@ni169445";
+ };
+ };
+};
diff --git a/arch/mips/generic/board-sead3.c b/arch/mips/generic/board-sead3.c
index f4ae0584a33b..f109a6b9fdd0 100644
--- a/arch/mips/generic/board-sead3.c
+++ b/arch/mips/generic/board-sead3.c
@@ -13,10 +13,12 @@
#include <linux/errno.h>
#include <linux/libfdt.h>
#include <linux/printk.h>
+#include <linux/sizes.h>
#include <asm/fw/fw.h>
#include <asm/io.h>
#include <asm/machine.h>
+#include <asm/yamon-dt.h>
#define SEAD_CONFIG CKSEG1ADDR(0x1b100110)
#define SEAD_CONFIG_GIC_PRESENT BIT(1)
@@ -25,6 +27,15 @@
#define MIPS_REVISION_MACHINE (0xf << 4)
#define MIPS_REVISION_MACHINE_SEAD3 (0x4 << 4)
+/*
+ * Maximum 384MB RAM at physical address 0, preceding any I/O.
+ */
+static struct yamon_mem_region mem_regions[] __initdata = {
+ /* start size */
+ { 0, SZ_256M + SZ_128M },
+ {}
+};
+
static __init bool sead3_detect(void)
{
uint32_t rev;
@@ -33,96 +44,9 @@ static __init bool sead3_detect(void)
return (rev & MIPS_REVISION_MACHINE) == MIPS_REVISION_MACHINE_SEAD3;
}
-static __init int append_cmdline(void *fdt)
-{
- int err, chosen_off;
-
- /* find or add chosen node */
- chosen_off = fdt_path_offset(fdt, "/chosen");
- if (chosen_off == -FDT_ERR_NOTFOUND)
- chosen_off = fdt_path_offset(fdt, "/chosen@0");
- if (chosen_off == -FDT_ERR_NOTFOUND)
- chosen_off = fdt_add_subnode(fdt, 0, "chosen");
- if (chosen_off < 0) {
- pr_err("Unable to find or add DT chosen node: %d\n",
- chosen_off);
- return chosen_off;
- }
-
- err = fdt_setprop_string(fdt, chosen_off, "bootargs", fw_getcmdline());
- if (err) {
- pr_err("Unable to set bootargs property: %d\n", err);
- return err;
- }
-
- return 0;
-}
-
static __init int append_memory(void *fdt)
{
- unsigned long phys_memsize, memsize;
- __be32 mem_array[2];
- int err, mem_off;
- char *var;
-
- /* find memory size from the bootloader environment */
- var = fw_getenv("memsize");
- if (var) {
- err = kstrtoul(var, 0, &phys_memsize);
- if (err) {
- pr_err("Failed to read memsize env variable '%s'\n",
- var);
- return -EINVAL;
- }
- } else {
- pr_warn("The bootloader didn't provide memsize: defaulting to 32MB\n");
- phys_memsize = 32 << 20;
- }
-
- /* default to using all available RAM */
- memsize = phys_memsize;
-
- /* allow the user to override the usable memory */
- var = strstr(arcs_cmdline, "memsize=");
- if (var)
- memsize = memparse(var + strlen("memsize="), NULL);
-
- /* if the user says there's more RAM than we thought, believe them */
- phys_memsize = max_t(unsigned long, phys_memsize, memsize);
-
- /* find or add a memory node */
- mem_off = fdt_path_offset(fdt, "/memory");
- if (mem_off == -FDT_ERR_NOTFOUND)
- mem_off = fdt_add_subnode(fdt, 0, "memory");
- if (mem_off < 0) {
- pr_err("Unable to find or add memory DT node: %d\n", mem_off);
- return mem_off;
- }
-
- err = fdt_setprop_string(fdt, mem_off, "device_type", "memory");
- if (err) {
- pr_err("Unable to set memory node device_type: %d\n", err);
- return err;
- }
-
- mem_array[0] = 0;
- mem_array[1] = cpu_to_be32(phys_memsize);
- err = fdt_setprop(fdt, mem_off, "reg", mem_array, sizeof(mem_array));
- if (err) {
- pr_err("Unable to set memory regs property: %d\n", err);
- return err;
- }
-
- mem_array[0] = 0;
- mem_array[1] = cpu_to_be32(memsize);
- err = fdt_setprop(fdt, mem_off, "linux,usable-memory",
- mem_array, sizeof(mem_array));
- if (err) {
- pr_err("Unable to set linux,usable-memory property: %d\n", err);
- return err;
- }
-
- return 0;
+ return yamon_dt_append_memory(fdt, mem_regions);
}
static __init int remove_gic(void *fdt)
@@ -163,14 +87,16 @@ static __init int remove_gic(void *fdt)
return -EINVAL;
}
- err = fdt_setprop_u32(fdt, 0, "interrupt-parent", cpu_phandle);
- if (err) {
- pr_err("unable to set root interrupt-parent: %d\n", err);
- return err;
- }
-
uart_off = fdt_node_offset_by_compatible(fdt, -1, "ns16550a");
while (uart_off >= 0) {
+ err = fdt_setprop_u32(fdt, uart_off, "interrupt-parent",
+ cpu_phandle);
+ if (err) {
+ pr_warn("unable to set UART interrupt-parent: %d\n",
+ err);
+ return err;
+ }
+
err = fdt_setprop_u32(fdt, uart_off, "interrupts",
cpu_uart_int);
if (err) {
@@ -193,6 +119,12 @@ static __init int remove_gic(void *fdt)
return eth_off;
}
+ err = fdt_setprop_u32(fdt, eth_off, "interrupt-parent", cpu_phandle);
+ if (err) {
+ pr_err("unable to set ethernet interrupt-parent: %d\n", err);
+ return err;
+ }
+
err = fdt_setprop_u32(fdt, eth_off, "interrupts", cpu_eth_int);
if (err) {
pr_err("unable to set ethernet interrupts property: %d\n", err);
@@ -205,94 +137,29 @@ static __init int remove_gic(void *fdt)
return ehci_off;
}
- err = fdt_setprop_u32(fdt, ehci_off, "interrupts", cpu_ehci_int);
+ err = fdt_setprop_u32(fdt, ehci_off, "interrupt-parent", cpu_phandle);
if (err) {
- pr_err("unable to set EHCI interrupts property: %d\n", err);
+ pr_err("unable to set EHCI interrupt-parent: %d\n", err);
return err;
}
- return 0;
-}
-
-static __init int serial_config(void *fdt)
-{
- const char *yamontty, *mode_var;
- char mode_var_name[9], path[18], parity;
- unsigned int uart, baud, stop_bits;
- bool hw_flow;
- int chosen_off, err;
-
- yamontty = fw_getenv("yamontty");
- if (!yamontty || !strcmp(yamontty, "tty0")) {
- uart = 0;
- } else if (!strcmp(yamontty, "tty1")) {
- uart = 1;
- } else {
- pr_warn("yamontty environment variable '%s' invalid\n",
- yamontty);
- uart = 0;
- }
-
- baud = stop_bits = 0;
- parity = 0;
- hw_flow = false;
-
- snprintf(mode_var_name, sizeof(mode_var_name), "modetty%u", uart);
- mode_var = fw_getenv(mode_var_name);
- if (mode_var) {
- while (mode_var[0] >= '0' && mode_var[0] <= '9') {
- baud *= 10;
- baud += mode_var[0] - '0';
- mode_var++;
- }
- if (mode_var[0] == ',')
- mode_var++;
- if (mode_var[0])
- parity = mode_var[0];
- if (mode_var[0] == ',')
- mode_var++;
- if (mode_var[0])
- stop_bits = mode_var[0] - '0';
- if (mode_var[0] == ',')
- mode_var++;
- if (!strcmp(mode_var, "hw"))
- hw_flow = true;
- }
-
- if (!baud)
- baud = 38400;
-
- if (parity != 'e' && parity != 'n' && parity != 'o')
- parity = 'n';
-
- if (stop_bits != 7 && stop_bits != 8)
- stop_bits = 8;
-
- WARN_ON(snprintf(path, sizeof(path), "uart%u:%u%c%u%s",
- uart, baud, parity, stop_bits,
- hw_flow ? "r" : "") >= sizeof(path));
-
- /* find or add chosen node */
- chosen_off = fdt_path_offset(fdt, "/chosen");
- if (chosen_off == -FDT_ERR_NOTFOUND)
- chosen_off = fdt_path_offset(fdt, "/chosen@0");
- if (chosen_off == -FDT_ERR_NOTFOUND)
- chosen_off = fdt_add_subnode(fdt, 0, "chosen");
- if (chosen_off < 0) {
- pr_err("Unable to find or add DT chosen node: %d\n",
- chosen_off);
- return chosen_off;
- }
-
- err = fdt_setprop_string(fdt, chosen_off, "stdout-path", path);
+ err = fdt_setprop_u32(fdt, ehci_off, "interrupts", cpu_ehci_int);
if (err) {
- pr_err("Unable to set stdout-path property: %d\n", err);
+ pr_err("unable to set EHCI interrupts property: %d\n", err);
return err;
}
return 0;
}
+static const struct mips_fdt_fixup sead3_fdt_fixups[] __initconst = {
+ { yamon_dt_append_cmdline, "append command line" },
+ { append_memory, "append memory" },
+ { remove_gic, "remove GIC when not present" },
+ { yamon_dt_serial_config, "append serial configuration" },
+ { },
+};
+
static __init const void *sead3_fixup_fdt(const void *fdt,
const void *match_data)
{
@@ -307,29 +174,10 @@ static __init const void *sead3_fixup_fdt(const void *fdt,
fw_init_cmdline();
- err = fdt_open_into(fdt, fdt_buf, sizeof(fdt_buf));
- if (err)
- panic("Unable to open FDT: %d", err);
-
- err = append_cmdline(fdt_buf);
- if (err)
- panic("Unable to patch FDT: %d", err);
-
- err = append_memory(fdt_buf);
- if (err)
- panic("Unable to patch FDT: %d", err);
-
- err = remove_gic(fdt_buf);
- if (err)
- panic("Unable to patch FDT: %d", err);
-
- err = serial_config(fdt_buf);
- if (err)
- panic("Unable to patch FDT: %d", err);
-
- err = fdt_pack(fdt_buf);
+ err = apply_mips_fdt_fixups(fdt_buf, sizeof(fdt_buf),
+ fdt, sead3_fdt_fixups);
if (err)
- panic("Unable to pack FDT: %d\n", err);
+ panic("Unable to fixup FDT: %d", err);
return fdt_buf;
}
diff --git a/arch/mips/generic/init.c b/arch/mips/generic/init.c
index 4af619215410..15a7fb8e2a2e 100644
--- a/arch/mips/generic/init.c
+++ b/arch/mips/generic/init.c
@@ -16,6 +16,7 @@
#include <linux/of_fdt.h>
#include <linux/of_platform.h>
+#include <asm/bootinfo.h>
#include <asm/fw/fw.h>
#include <asm/irq_cpu.h>
#include <asm/machine.h>
@@ -88,6 +89,8 @@ void __init *plat_get_fdt(void)
return (void *)fdt;
}
+#ifdef CONFIG_RELOCATABLE
+
void __init plat_fdt_relocated(void *new_location)
{
/*
@@ -101,6 +104,8 @@ void __init plat_fdt_relocated(void *new_location)
fw_arg1 = (unsigned long)new_location;
}
+#endif /* CONFIG_RELOCATABLE */
+
void __init plat_mem_setup(void)
{
if (mach && mach->fixup_fdt)
@@ -122,6 +127,33 @@ void __init device_tree_init(void)
err = register_up_smp_ops();
}
+int __init apply_mips_fdt_fixups(void *fdt_out, size_t fdt_out_size,
+ const void *fdt_in,
+ const struct mips_fdt_fixup *fixups)
+{
+ int err;
+
+ err = fdt_open_into(fdt_in, fdt_out, fdt_out_size);
+ if (err) {
+ pr_err("Failed to open FDT\n");
+ return err;
+ }
+
+ for (; fixups->apply; fixups++) {
+ err = fixups->apply(fdt_out);
+ if (err) {
+ pr_err("Failed to apply FDT fixup \"%s\"\n",
+ fixups->description);
+ return err;
+ }
+ }
+
+ err = fdt_pack(fdt_out);
+ if (err)
+ pr_err("Failed to pack FDT\n");
+ return err;
+}
+
void __init plat_time_init(void)
{
struct device_node *np;
@@ -161,7 +193,7 @@ void __init plat_time_init(void)
}
}
- clocksource_probe();
+ timer_probe();
}
void __init arch_init_irq(void)
diff --git a/arch/mips/generic/irq.c b/arch/mips/generic/irq.c
index 14064bdd91dd..5322d09dd51b 100644
--- a/arch/mips/generic/irq.c
+++ b/arch/mips/generic/irq.c
@@ -12,10 +12,11 @@
#include <linux/clk-provider.h>
#include <linux/clocksource.h>
#include <linux/init.h>
-#include <linux/irqchip/mips-gic.h>
#include <linux/types.h>
#include <asm/irq.h>
+#include <asm/mips-cps.h>
+#include <asm/time.h>
int get_c0_fdc_int(void)
{
@@ -23,7 +24,7 @@ int get_c0_fdc_int(void)
if (cpu_has_veic)
panic("Unimplemented!");
- else if (gic_present)
+ else if (mips_gic_present())
mips_cpu_fdc_irq = gic_get_c0_fdc_int();
else if (cp0_fdc_irq >= 0)
mips_cpu_fdc_irq = MIPS_CPU_IRQ_BASE + cp0_fdc_irq;
@@ -39,7 +40,7 @@ int get_c0_perfcount_int(void)
if (cpu_has_veic)
panic("Unimplemented!");
- else if (gic_present)
+ else if (mips_gic_present())
mips_cpu_perf_irq = gic_get_c0_perfcount_int();
else if (cp0_perfcount_irq >= 0)
mips_cpu_perf_irq = MIPS_CPU_IRQ_BASE + cp0_perfcount_irq;
@@ -55,7 +56,7 @@ unsigned int get_c0_compare_int(void)
if (cpu_has_veic)
panic("Unimplemented!");
- else if (gic_present)
+ else if (mips_gic_present())
mips_cpu_timer_irq = gic_get_c0_compare_int();
else
mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq;
diff --git a/arch/mips/generic/yamon-dt.c b/arch/mips/generic/yamon-dt.c
new file mode 100644
index 000000000000..6077bca9b364
--- /dev/null
+++ b/arch/mips/generic/yamon-dt.c
@@ -0,0 +1,240 @@
+/*
+ * Copyright (C) 2016 Imagination Technologies
+ * Author: Paul Burton <paul.burton@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#define pr_fmt(fmt) "yamon-dt: " fmt
+
+#include <linux/bug.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/libfdt.h>
+#include <linux/printk.h>
+
+#include <asm/fw/fw.h>
+#include <asm/yamon-dt.h>
+
+#define MAX_MEM_ARRAY_ENTRIES 2
+
+__init int yamon_dt_append_cmdline(void *fdt)
+{
+ int err, chosen_off;
+
+ /* find or add chosen node */
+ chosen_off = fdt_path_offset(fdt, "/chosen");
+ if (chosen_off == -FDT_ERR_NOTFOUND)
+ chosen_off = fdt_path_offset(fdt, "/chosen@0");
+ if (chosen_off == -FDT_ERR_NOTFOUND)
+ chosen_off = fdt_add_subnode(fdt, 0, "chosen");
+ if (chosen_off < 0) {
+ pr_err("Unable to find or add DT chosen node: %d\n",
+ chosen_off);
+ return chosen_off;
+ }
+
+ err = fdt_setprop_string(fdt, chosen_off, "bootargs", fw_getcmdline());
+ if (err) {
+ pr_err("Unable to set bootargs property: %d\n", err);
+ return err;
+ }
+
+ return 0;
+}
+
+static unsigned int __init gen_fdt_mem_array(
+ const struct yamon_mem_region *regions,
+ __be32 *mem_array,
+ unsigned int max_entries,
+ unsigned long memsize)
+{
+ const struct yamon_mem_region *mr;
+ unsigned long size;
+ unsigned int entries = 0;
+
+ for (mr = regions; mr->size && memsize; ++mr) {
+ if (entries >= max_entries) {
+ pr_warn("Number of regions exceeds max %u\n",
+ max_entries);
+ break;
+ }
+
+ /* How much of the remaining RAM fits in the next region? */
+ size = min_t(unsigned long, memsize, mr->size);
+ memsize -= size;
+
+ /* Emit a memory region */
+ *(mem_array++) = cpu_to_be32(mr->start);
+ *(mem_array++) = cpu_to_be32(size);
+ ++entries;
+
+ /* Discard the next mr->discard bytes */
+ memsize -= min_t(unsigned long, memsize, mr->discard);
+ }
+ return entries;
+}
+
+__init int yamon_dt_append_memory(void *fdt,
+ const struct yamon_mem_region *regions)
+{
+ unsigned long phys_memsize, memsize;
+ __be32 mem_array[2 * MAX_MEM_ARRAY_ENTRIES];
+ unsigned int mem_entries;
+ int i, err, mem_off;
+ char *var, param_name[10], *var_names[] = {
+ "ememsize", "memsize",
+ };
+
+ /* find memory size from the bootloader environment */
+ for (i = 0; i < ARRAY_SIZE(var_names); i++) {
+ var = fw_getenv(var_names[i]);
+ if (!var)
+ continue;
+
+ err = kstrtoul(var, 0, &phys_memsize);
+ if (!err)
+ break;
+
+ pr_warn("Failed to read the '%s' env variable '%s'\n",
+ var_names[i], var);
+ }
+
+ if (!phys_memsize) {
+ pr_warn("The bootloader didn't provide memsize: defaulting to 32MB\n");
+ phys_memsize = 32 << 20;
+ }
+
+ /* default to using all available RAM */
+ memsize = phys_memsize;
+
+ /* allow the user to override the usable memory */
+ for (i = 0; i < ARRAY_SIZE(var_names); i++) {
+ snprintf(param_name, sizeof(param_name), "%s=", var_names[i]);
+ var = strstr(arcs_cmdline, param_name);
+ if (!var)
+ continue;
+
+ memsize = memparse(var + strlen(param_name), NULL);
+ }
+
+ /* if the user says there's more RAM than we thought, believe them */
+ phys_memsize = max_t(unsigned long, phys_memsize, memsize);
+
+ /* find or add a memory node */
+ mem_off = fdt_path_offset(fdt, "/memory");
+ if (mem_off == -FDT_ERR_NOTFOUND)
+ mem_off = fdt_add_subnode(fdt, 0, "memory");
+ if (mem_off < 0) {
+ pr_err("Unable to find or add memory DT node: %d\n", mem_off);
+ return mem_off;
+ }
+
+ err = fdt_setprop_string(fdt, mem_off, "device_type", "memory");
+ if (err) {
+ pr_err("Unable to set memory node device_type: %d\n", err);
+ return err;
+ }
+
+ mem_entries = gen_fdt_mem_array(regions, mem_array,
+ MAX_MEM_ARRAY_ENTRIES, phys_memsize);
+ err = fdt_setprop(fdt, mem_off, "reg",
+ mem_array, mem_entries * 2 * sizeof(mem_array[0]));
+ if (err) {
+ pr_err("Unable to set memory regs property: %d\n", err);
+ return err;
+ }
+
+ mem_entries = gen_fdt_mem_array(regions, mem_array,
+ MAX_MEM_ARRAY_ENTRIES, memsize);
+ err = fdt_setprop(fdt, mem_off, "linux,usable-memory",
+ mem_array, mem_entries * 2 * sizeof(mem_array[0]));
+ if (err) {
+ pr_err("Unable to set linux,usable-memory property: %d\n", err);
+ return err;
+ }
+
+ return 0;
+}
+
+__init int yamon_dt_serial_config(void *fdt)
+{
+ const char *yamontty, *mode_var;
+ char mode_var_name[9], path[20], parity;
+ unsigned int uart, baud, stop_bits;
+ bool hw_flow;
+ int chosen_off, err;
+
+ yamontty = fw_getenv("yamontty");
+ if (!yamontty || !strcmp(yamontty, "tty0")) {
+ uart = 0;
+ } else if (!strcmp(yamontty, "tty1")) {
+ uart = 1;
+ } else {
+ pr_warn("yamontty environment variable '%s' invalid\n",
+ yamontty);
+ uart = 0;
+ }
+
+ baud = stop_bits = 0;
+ parity = 0;
+ hw_flow = false;
+
+ snprintf(mode_var_name, sizeof(mode_var_name), "modetty%u", uart);
+ mode_var = fw_getenv(mode_var_name);
+ if (mode_var) {
+ while (mode_var[0] >= '0' && mode_var[0] <= '9') {
+ baud *= 10;
+ baud += mode_var[0] - '0';
+ mode_var++;
+ }
+ if (mode_var[0] == ',')
+ mode_var++;
+ if (mode_var[0])
+ parity = mode_var[0];
+ if (mode_var[0] == ',')
+ mode_var++;
+ if (mode_var[0])
+ stop_bits = mode_var[0] - '0';
+ if (mode_var[0] == ',')
+ mode_var++;
+ if (!strcmp(mode_var, "hw"))
+ hw_flow = true;
+ }
+
+ if (!baud)
+ baud = 38400;
+
+ if (parity != 'e' && parity != 'n' && parity != 'o')
+ parity = 'n';
+
+ if (stop_bits != 7 && stop_bits != 8)
+ stop_bits = 8;
+
+ WARN_ON(snprintf(path, sizeof(path), "serial%u:%u%c%u%s",
+ uart, baud, parity, stop_bits,
+ hw_flow ? "r" : "") >= sizeof(path));
+
+ /* find or add chosen node */
+ chosen_off = fdt_path_offset(fdt, "/chosen");
+ if (chosen_off == -FDT_ERR_NOTFOUND)
+ chosen_off = fdt_path_offset(fdt, "/chosen@0");
+ if (chosen_off == -FDT_ERR_NOTFOUND)
+ chosen_off = fdt_add_subnode(fdt, 0, "chosen");
+ if (chosen_off < 0) {
+ pr_err("Unable to find or add DT chosen node: %d\n",
+ chosen_off);
+ return chosen_off;
+ }
+
+ err = fdt_setprop_string(fdt, chosen_off, "stdout-path", path);
+ if (err) {
+ pr_err("Unable to set stdout-path property: %d\n", err);
+ return err;
+ }
+
+ return 0;
+}
diff --git a/arch/mips/include/asm/Kbuild b/arch/mips/include/asm/Kbuild
index 2535c7b4c482..7c8aab23bce8 100644
--- a/arch/mips/include/asm/Kbuild
+++ b/arch/mips/include/asm/Kbuild
@@ -12,6 +12,8 @@ generic-y += mm-arch-hooks.h
generic-y += parport.h
generic-y += percpu.h
generic-y += preempt.h
+generic-y += qrwlock.h
+generic-y += qspinlock.h
generic-y += sections.h
generic-y += segment.h
generic-y += serial.h
diff --git a/arch/mips/include/asm/asm.h b/arch/mips/include/asm/asm.h
index 859cf7048347..81fae23ce7cd 100644
--- a/arch/mips/include/asm/asm.h
+++ b/arch/mips/include/asm/asm.h
@@ -55,6 +55,7 @@
.type symbol, @function; \
.ent symbol, 0; \
symbol: .frame sp, 0, ra; \
+ .cfi_startproc; \
.insn
/*
@@ -66,12 +67,14 @@ symbol: .frame sp, 0, ra; \
.type symbol, @function; \
.ent symbol, 0; \
symbol: .frame sp, framesize, rpc; \
+ .cfi_startproc; \
.insn
/*
* END - mark end of function
*/
#define END(function) \
+ .cfi_endproc; \
.end function; \
.size function, .-function
diff --git a/arch/mips/include/asm/bmips.h b/arch/mips/include/asm/bmips.h
index a92aee7b977a..b3e2975f83d3 100644
--- a/arch/mips/include/asm/bmips.h
+++ b/arch/mips/include/asm/bmips.h
@@ -48,8 +48,8 @@
#include <asm/r4kcache.h>
#include <asm/smp-ops.h>
-extern struct plat_smp_ops bmips43xx_smp_ops;
-extern struct plat_smp_ops bmips5000_smp_ops;
+extern const struct plat_smp_ops bmips43xx_smp_ops;
+extern const struct plat_smp_ops bmips5000_smp_ops;
static inline int register_bmips_smp_ops(void)
{
diff --git a/arch/mips/include/asm/branch.h b/arch/mips/include/asm/branch.h
index de781cf54bc7..da80878f2c0d 100644
--- a/arch/mips/include/asm/branch.h
+++ b/arch/mips/include/asm/branch.h
@@ -74,10 +74,7 @@ static inline int compute_return_epc(struct pt_regs *regs)
return __microMIPS_compute_return_epc(regs);
if (cpu_has_mips16)
return __MIPS16e_compute_return_epc(regs);
- return regs->cp0_epc;
- }
-
- if (!delay_slot(regs)) {
+ } else if (!delay_slot(regs)) {
regs->cp0_epc += 4;
return 0;
}
diff --git a/arch/mips/include/asm/cache.h b/arch/mips/include/asm/cache.h
index fc67947ed658..8b14c2706aa5 100644
--- a/arch/mips/include/asm/cache.h
+++ b/arch/mips/include/asm/cache.h
@@ -9,6 +9,8 @@
#ifndef _ASM_CACHE_H
#define _ASM_CACHE_H
+#include <kmalloc.h>
+
#define L1_CACHE_SHIFT CONFIG_MIPS_L1_CACHE_SHIFT
#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
diff --git a/arch/mips/include/asm/cmpxchg.h b/arch/mips/include/asm/cmpxchg.h
index b71ab4a5fd50..7e25c5cc353a 100644
--- a/arch/mips/include/asm/cmpxchg.h
+++ b/arch/mips/include/asm/cmpxchg.h
@@ -13,153 +13,107 @@
#include <asm/compiler.h>
#include <asm/war.h>
-static inline unsigned long __xchg_u32(volatile int * m, unsigned int val)
-{
- __u32 retval;
-
- smp_mb__before_llsc();
-
- if (kernel_uses_llsc && R10000_LLSC_WAR) {
- unsigned long dummy;
-
- __asm__ __volatile__(
- " .set arch=r4000 \n"
- "1: ll %0, %3 # xchg_u32 \n"
- " .set mips0 \n"
- " move %2, %z4 \n"
- " .set arch=r4000 \n"
- " sc %2, %1 \n"
- " beqzl %2, 1b \n"
- " .set mips0 \n"
- : "=&r" (retval), "=" GCC_OFF_SMALL_ASM() (*m), "=&r" (dummy)
- : GCC_OFF_SMALL_ASM() (*m), "Jr" (val)
- : "memory");
- } else if (kernel_uses_llsc) {
- unsigned long dummy;
-
- do {
- __asm__ __volatile__(
- " .set "MIPS_ISA_ARCH_LEVEL" \n"
- " ll %0, %3 # xchg_u32 \n"
- " .set mips0 \n"
- " move %2, %z4 \n"
- " .set "MIPS_ISA_ARCH_LEVEL" \n"
- " sc %2, %1 \n"
- " .set mips0 \n"
- : "=&r" (retval), "=" GCC_OFF_SMALL_ASM() (*m),
- "=&r" (dummy)
- : GCC_OFF_SMALL_ASM() (*m), "Jr" (val)
- : "memory");
- } while (unlikely(!dummy));
- } else {
- unsigned long flags;
-
- raw_local_irq_save(flags);
- retval = *m;
- *m = val;
- raw_local_irq_restore(flags); /* implies memory barrier */
- }
-
- smp_llsc_mb();
-
- return retval;
-}
+/*
+ * Using a branch-likely instruction to check the result of an sc instruction
+ * works around a bug present in R10000 CPUs prior to revision 3.0 that could
+ * cause ll-sc sequences to execute non-atomically.
+ */
+#if R10000_LLSC_WAR
+# define __scbeqz "beqzl"
+#else
+# define __scbeqz "beqz"
+#endif
-#ifdef CONFIG_64BIT
-static inline __u64 __xchg_u64(volatile __u64 * m, __u64 val)
-{
- __u64 retval;
-
- smp_mb__before_llsc();
-
- if (kernel_uses_llsc && R10000_LLSC_WAR) {
- unsigned long dummy;
-
- __asm__ __volatile__(
- " .set arch=r4000 \n"
- "1: lld %0, %3 # xchg_u64 \n"
- " move %2, %z4 \n"
- " scd %2, %1 \n"
- " beqzl %2, 1b \n"
- " .set mips0 \n"
- : "=&r" (retval), "=" GCC_OFF_SMALL_ASM() (*m), "=&r" (dummy)
- : GCC_OFF_SMALL_ASM() (*m), "Jr" (val)
- : "memory");
- } else if (kernel_uses_llsc) {
- unsigned long dummy;
-
- do {
- __asm__ __volatile__(
- " .set "MIPS_ISA_ARCH_LEVEL" \n"
- " lld %0, %3 # xchg_u64 \n"
- " move %2, %z4 \n"
- " scd %2, %1 \n"
- " .set mips0 \n"
- : "=&r" (retval), "=" GCC_OFF_SMALL_ASM() (*m),
- "=&r" (dummy)
- : GCC_OFF_SMALL_ASM() (*m), "Jr" (val)
- : "memory");
- } while (unlikely(!dummy));
- } else {
- unsigned long flags;
-
- raw_local_irq_save(flags);
- retval = *m;
- *m = val;
- raw_local_irq_restore(flags); /* implies memory barrier */
- }
+/*
+ * These functions doesn't exist, so if they are called you'll either:
+ *
+ * - Get an error at compile-time due to __compiletime_error, if supported by
+ * your compiler.
+ *
+ * or:
+ *
+ * - Get an error at link-time due to the call to the missing function.
+ */
+extern unsigned long __cmpxchg_called_with_bad_pointer(void)
+ __compiletime_error("Bad argument size for cmpxchg");
+extern unsigned long __xchg_called_with_bad_pointer(void)
+ __compiletime_error("Bad argument size for xchg");
- smp_llsc_mb();
+#define __xchg_asm(ld, st, m, val) \
+({ \
+ __typeof(*(m)) __ret; \
+ \
+ if (kernel_uses_llsc) { \
+ __asm__ __volatile__( \
+ " .set push \n" \
+ " .set noat \n" \
+ " .set " MIPS_ISA_ARCH_LEVEL " \n" \
+ "1: " ld " %0, %2 # __xchg_asm \n" \
+ " .set mips0 \n" \
+ " move $1, %z3 \n" \
+ " .set " MIPS_ISA_ARCH_LEVEL " \n" \
+ " " st " $1, %1 \n" \
+ "\t" __scbeqz " $1, 1b \n" \
+ " .set pop \n" \
+ : "=&r" (__ret), "=" GCC_OFF_SMALL_ASM() (*m) \
+ : GCC_OFF_SMALL_ASM() (*m), "Jr" (val) \
+ : "memory"); \
+ } else { \
+ unsigned long __flags; \
+ \
+ raw_local_irq_save(__flags); \
+ __ret = *m; \
+ *m = val; \
+ raw_local_irq_restore(__flags); \
+ } \
+ \
+ __ret; \
+})
- return retval;
-}
-#else
-extern __u64 __xchg_u64_unsupported_on_32bit_kernels(volatile __u64 * m, __u64 val);
-#define __xchg_u64 __xchg_u64_unsupported_on_32bit_kernels
-#endif
+extern unsigned long __xchg_small(volatile void *ptr, unsigned long val,
+ unsigned int size);
-static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
+static inline unsigned long __xchg(volatile void *ptr, unsigned long x,
+ int size)
{
switch (size) {
+ case 1:
+ case 2:
+ return __xchg_small(ptr, x, size);
+
case 4:
- return __xchg_u32(ptr, x);
+ return __xchg_asm("ll", "sc", (volatile u32 *)ptr, x);
+
case 8:
- return __xchg_u64(ptr, x);
- }
+ if (!IS_ENABLED(CONFIG_64BIT))
+ return __xchg_called_with_bad_pointer();
+
+ return __xchg_asm("lld", "scd", (volatile u64 *)ptr, x);
- return x;
+ default:
+ return __xchg_called_with_bad_pointer();
+ }
}
#define xchg(ptr, x) \
({ \
- BUILD_BUG_ON(sizeof(*(ptr)) & ~0xc); \
+ __typeof__(*(ptr)) __res; \
\
- ((__typeof__(*(ptr))) \
- __xchg((unsigned long)(x), (ptr), sizeof(*(ptr)))); \
+ smp_mb__before_llsc(); \
+ \
+ __res = (__typeof__(*(ptr))) \
+ __xchg((ptr), (unsigned long)(x), sizeof(*(ptr))); \
+ \
+ smp_llsc_mb(); \
+ \
+ __res; \
})
#define __cmpxchg_asm(ld, st, m, old, new) \
({ \
__typeof(*(m)) __ret; \
\
- if (kernel_uses_llsc && R10000_LLSC_WAR) { \
- __asm__ __volatile__( \
- " .set push \n" \
- " .set noat \n" \
- " .set arch=r4000 \n" \
- "1: " ld " %0, %2 # __cmpxchg_asm \n" \
- " bne %0, %z3, 2f \n" \
- " .set mips0 \n" \
- " move $1, %z4 \n" \
- " .set arch=r4000 \n" \
- " " st " $1, %1 \n" \
- " beqzl $1, 1b \n" \
- "2: \n" \
- " .set pop \n" \
- : "=&r" (__ret), "=" GCC_OFF_SMALL_ASM() (*m) \
- : GCC_OFF_SMALL_ASM() (*m), "Jr" (old), "Jr" (new) \
- : "memory"); \
- } else if (kernel_uses_llsc) { \
+ if (kernel_uses_llsc) { \
__asm__ __volatile__( \
" .set push \n" \
" .set noat \n" \
@@ -170,7 +124,7 @@ static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int siz
" move $1, %z4 \n" \
" .set "MIPS_ISA_ARCH_LEVEL" \n" \
" " st " $1, %1 \n" \
- " beqz $1, 1b \n" \
+ "\t" __scbeqz " $1, 1b \n" \
" .set pop \n" \
"2: \n" \
: "=&r" (__ret), "=" GCC_OFF_SMALL_ASM() (*m) \
@@ -189,44 +143,52 @@ static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int siz
__ret; \
})
-/*
- * This function doesn't exist, so you'll get a linker error
- * if something tries to do an invalid cmpxchg().
- */
-extern void __cmpxchg_called_with_bad_pointer(void);
+extern unsigned long __cmpxchg_small(volatile void *ptr, unsigned long old,
+ unsigned long new, unsigned int size);
+
+static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
+ unsigned long new, unsigned int size)
+{
+ switch (size) {
+ case 1:
+ case 2:
+ return __cmpxchg_small(ptr, old, new, size);
+
+ case 4:
+ return __cmpxchg_asm("ll", "sc", (volatile u32 *)ptr,
+ (u32)old, new);
+
+ case 8:
+ /* lld/scd are only available for MIPS64 */
+ if (!IS_ENABLED(CONFIG_64BIT))
+ return __cmpxchg_called_with_bad_pointer();
+
+ return __cmpxchg_asm("lld", "scd", (volatile u64 *)ptr,
+ (u64)old, new);
-#define __cmpxchg(ptr, old, new, pre_barrier, post_barrier) \
+ default:
+ return __cmpxchg_called_with_bad_pointer();
+ }
+}
+
+#define cmpxchg_local(ptr, old, new) \
+ ((__typeof__(*(ptr))) \
+ __cmpxchg((ptr), \
+ (unsigned long)(__typeof__(*(ptr)))(old), \
+ (unsigned long)(__typeof__(*(ptr)))(new), \
+ sizeof(*(ptr))))
+
+#define cmpxchg(ptr, old, new) \
({ \
- __typeof__(ptr) __ptr = (ptr); \
- __typeof__(*(ptr)) __old = (old); \
- __typeof__(*(ptr)) __new = (new); \
- __typeof__(*(ptr)) __res = 0; \
+ __typeof__(*(ptr)) __res; \
\
- pre_barrier; \
- \
- switch (sizeof(*(__ptr))) { \
- case 4: \
- __res = __cmpxchg_asm("ll", "sc", __ptr, __old, __new); \
- break; \
- case 8: \
- if (sizeof(long) == 8) { \
- __res = __cmpxchg_asm("lld", "scd", __ptr, \
- __old, __new); \
- break; \
- } \
- default: \
- __cmpxchg_called_with_bad_pointer(); \
- break; \
- } \
- \
- post_barrier; \
+ smp_mb__before_llsc(); \
+ __res = cmpxchg_local((ptr), (old), (new)); \
+ smp_llsc_mb(); \
\
__res; \
})
-#define cmpxchg(ptr, old, new) __cmpxchg(ptr, old, new, smp_mb__before_llsc(), smp_llsc_mb())
-#define cmpxchg_local(ptr, old, new) __cmpxchg(ptr, old, new, , )
-
#ifdef CONFIG_64BIT
#define cmpxchg64_local(ptr, o, n) \
({ \
@@ -245,4 +207,6 @@ extern void __cmpxchg_called_with_bad_pointer(void);
#define cmpxchg64(ptr, o, n) cmpxchg64_local((ptr), (o), (n))
#endif
+#undef __scbeqz
+
#endif /* __ASM_CMPXCHG_H */
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h
index 494d38274142..721b698bfe3c 100644
--- a/arch/mips/include/asm/cpu-features.h
+++ b/arch/mips/include/asm/cpu-features.h
@@ -138,6 +138,9 @@
#ifndef cpu_has_mips16
#define cpu_has_mips16 (cpu_data[0].ases & MIPS_ASE_MIPS16)
#endif
+#ifndef cpu_has_mips16e2
+#define cpu_has_mips16e2 (cpu_data[0].ases & MIPS_ASE_MIPS16E2)
+#endif
#ifndef cpu_has_mdmx
#define cpu_has_mdmx (cpu_data[0].ases & MIPS_ASE_MDMX)
#endif
@@ -425,6 +428,9 @@
#ifndef cpu_scache_line_size
#define cpu_scache_line_size() cpu_data[0].scache.linesz
#endif
+#ifndef cpu_tcache_line_size
+#define cpu_tcache_line_size() cpu_data[0].tcache.linesz
+#endif
#ifndef cpu_hwrena_impl_bits
#define cpu_hwrena_impl_bits 0
@@ -487,6 +493,47 @@
# define cpu_has_perf (cpu_data[0].options & MIPS_CPU_PERF)
#endif
+#if defined(CONFIG_SMP) && defined(__mips_isa_rev) && (__mips_isa_rev >= 6)
+/*
+ * Some systems share FTLB RAMs between threads within a core (siblings in
+ * kernel parlance). This means that FTLB entries may become invalid at almost
+ * any point when an entry is evicted due to a sibling thread writing an entry
+ * to the shared FTLB RAM.
+ *
+ * This is only relevant to SMP systems, and the only systems that exhibit this
+ * property implement MIPSr6 or higher so we constrain support for this to
+ * kernels that will run on such systems.
+ */
+# ifndef cpu_has_shared_ftlb_ram
+# define cpu_has_shared_ftlb_ram \
+ (current_cpu_data.options & MIPS_CPU_SHARED_FTLB_RAM)
+# endif
+
+/*
+ * Some systems take this a step further & share FTLB entries between siblings.
+ * This is implemented as TLB writes happening as usual, but if an entry
+ * written by a sibling exists in the shared FTLB for a translation which would
+ * otherwise cause a TLB refill exception then the CPU will use the entry
+ * written by its sibling rather than triggering a refill & writing a matching
+ * TLB entry for itself.
+ *
+ * This is naturally only valid if a TLB entry is known to be suitable for use
+ * on all siblings in a CPU, and so it only takes effect when MMIDs are in use
+ * rather than ASIDs or when a TLB entry is marked global.
+ */
+# ifndef cpu_has_shared_ftlb_entries
+# define cpu_has_shared_ftlb_entries \
+ (current_cpu_data.options & MIPS_CPU_SHARED_FTLB_ENTRIES)
+# endif
+#endif /* SMP && __mips_isa_rev >= 6 */
+
+#ifndef cpu_has_shared_ftlb_ram
+# define cpu_has_shared_ftlb_ram 0
+#endif
+#ifndef cpu_has_shared_ftlb_entries
+# define cpu_has_shared_ftlb_entries 0
+#endif
+
/*
* Guest capabilities
*/
diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h
index cd6efb07c980..a41059d47d31 100644
--- a/arch/mips/include/asm/cpu-info.h
+++ b/arch/mips/include/asm/cpu-info.h
@@ -15,6 +15,8 @@
#include <linux/cache.h>
#include <linux/types.h>
+#include <asm/mipsregs.h>
+
/*
* Descriptor for a cache
*/
@@ -77,17 +79,10 @@ struct cpuinfo_mips {
struct cache_desc tcache; /* Tertiary/split secondary cache */
int srsets; /* Shadow register sets */
int package;/* physical package number */
- int core; /* physical core number */
+ unsigned int globalnumber;
#ifdef CONFIG_64BIT
int vmbits; /* Virtual memory size in bits */
#endif
-#if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_CPU_MIPSR6)
- /*
- * There is not necessarily a 1:1 mapping of VPE num to CPU number
- * in particular on multi-core systems.
- */
- int vpe_id; /* Virtual Processor number */
-#endif
void *data; /* Additional data */
unsigned int watch_reg_count; /* Number that exist */
unsigned int watch_reg_use_cnt; /* Usable by ptrace */
@@ -144,11 +139,52 @@ struct proc_cpuinfo_notifier_args {
unsigned long n;
};
-#if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_CPU_MIPSR6)
-# define cpu_vpe_id(cpuinfo) ((cpuinfo)->vpe_id)
-#else
-# define cpu_vpe_id(cpuinfo) ({ (void)cpuinfo; 0; })
-#endif
+static inline unsigned int cpu_cluster(struct cpuinfo_mips *cpuinfo)
+{
+ /* Optimisation for systems where multiple clusters aren't used */
+ if (!IS_ENABLED(CONFIG_CPU_MIPSR6))
+ return 0;
+
+ return (cpuinfo->globalnumber & MIPS_GLOBALNUMBER_CLUSTER) >>
+ MIPS_GLOBALNUMBER_CLUSTER_SHF;
+}
+
+static inline unsigned int cpu_core(struct cpuinfo_mips *cpuinfo)
+{
+ return (cpuinfo->globalnumber & MIPS_GLOBALNUMBER_CORE) >>
+ MIPS_GLOBALNUMBER_CORE_SHF;
+}
+
+static inline unsigned int cpu_vpe_id(struct cpuinfo_mips *cpuinfo)
+{
+ /* Optimisation for systems where VP(E)s aren't used */
+ if (!IS_ENABLED(CONFIG_MIPS_MT_SMP) && !IS_ENABLED(CONFIG_CPU_MIPSR6))
+ return 0;
+
+ return (cpuinfo->globalnumber & MIPS_GLOBALNUMBER_VP) >>
+ MIPS_GLOBALNUMBER_VP_SHF;
+}
+
+extern void cpu_set_cluster(struct cpuinfo_mips *cpuinfo, unsigned int cluster);
+extern void cpu_set_core(struct cpuinfo_mips *cpuinfo, unsigned int core);
+extern void cpu_set_vpe_id(struct cpuinfo_mips *cpuinfo, unsigned int vpe);
+
+static inline bool cpus_are_siblings(int cpua, int cpub)
+{
+ struct cpuinfo_mips *infoa = &cpu_data[cpua];
+ struct cpuinfo_mips *infob = &cpu_data[cpub];
+ unsigned int gnuma, gnumb;
+
+ if (infoa->package != infob->package)
+ return false;
+
+ gnuma = infoa->globalnumber & ~MIPS_GLOBALNUMBER_VP;
+ gnumb = infob->globalnumber & ~MIPS_GLOBALNUMBER_VP;
+ if (gnuma != gnumb)
+ return false;
+
+ return true;
+}
static inline unsigned long cpu_asid_inc(void)
{
diff --git a/arch/mips/include/asm/cpu-type.h b/arch/mips/include/asm/cpu-type.h
index bdd6dc18e65c..a45af3de075d 100644
--- a/arch/mips/include/asm/cpu-type.h
+++ b/arch/mips/include/asm/cpu-type.h
@@ -84,6 +84,7 @@ static inline int __pure __get_cpu_type(const int cpu_type)
#ifdef CONFIG_SYS_HAS_CPU_MIPS64_R6
case CPU_I6400:
+ case CPU_I6500:
case CPU_P6600:
#endif
@@ -150,11 +151,6 @@ static inline int __pure __get_cpu_type(const int cpu_type)
case CPU_R5500:
#endif
-#ifdef CONFIG_SYS_HAS_CPU_R6000
- case CPU_R6000:
- case CPU_R6000A:
-#endif
-
#ifdef CONFIG_SYS_HAS_CPU_NEVADA
case CPU_NEVADA:
#endif
diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h
index 98f59307e6a3..ece9b84f3bcb 100644
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -124,6 +124,7 @@
#define PRID_IMP_P5600 0xa800
#define PRID_IMP_I6400 0xa900
#define PRID_IMP_M6250 0xab00
+#define PRID_IMP_I6500 0xb000
/*
* These are the PRID's for when 23:16 == PRID_COMP_SIBYTE
@@ -247,6 +248,7 @@
#define PRID_REV_LOONGSON3B_R1 0x0006
#define PRID_REV_LOONGSON3B_R2 0x0007
#define PRID_REV_LOONGSON3A_R2 0x0008
+#define PRID_REV_LOONGSON3A_R3 0x0009
/*
* Older processors used to encode processor version and revision in two
@@ -284,11 +286,6 @@ enum cpu_type_enum {
CPU_R3081, CPU_R3081E,
/*
- * R6000 class processors
- */
- CPU_R6000, CPU_R6000A,
-
- /*
* R4000 class processors
*/
CPU_R4000PC, CPU_R4000SC, CPU_R4000MC, CPU_R4200, CPU_R4300, CPU_R4310,
@@ -322,7 +319,7 @@ enum cpu_type_enum {
*/
CPU_5KC, CPU_5KE, CPU_20KC, CPU_25KF, CPU_SB1, CPU_SB1A, CPU_LOONGSON2,
CPU_LOONGSON3, CPU_CAVIUM_OCTEON, CPU_CAVIUM_OCTEON_PLUS,
- CPU_CAVIUM_OCTEON2, CPU_CAVIUM_OCTEON3, CPU_XLR, CPU_XLP,
+ CPU_CAVIUM_OCTEON2, CPU_CAVIUM_OCTEON3, CPU_XLR, CPU_XLP, CPU_I6500,
CPU_QEMU_GENERIC,
@@ -416,6 +413,10 @@ enum cpu_type_enum {
#define MIPS_CPU_GUESTID MBIT_ULL(51) /* CPU uses VZ ASE GuestID feature */
#define MIPS_CPU_DRG MBIT_ULL(52) /* CPU has VZ Direct Root to Guest (DRG) */
#define MIPS_CPU_UFR MBIT_ULL(53) /* CPU supports User mode FR switching */
+#define MIPS_CPU_SHARED_FTLB_RAM \
+ MBIT_ULL(54) /* CPU shares FTLB RAM with another */
+#define MIPS_CPU_SHARED_FTLB_ENTRIES \
+ MBIT_ULL(55) /* CPU shares FTLB entries with another */
/*
* CPU ASE encodings
@@ -430,5 +431,6 @@ enum cpu_type_enum {
#define MIPS_ASE_VZ 0x00000080 /* Virtualization ASE */
#define MIPS_ASE_MSA 0x00000100 /* MIPS SIMD Architecture */
#define MIPS_ASE_DSP3 0x00000200 /* Signal Processing ASE Rev 3*/
+#define MIPS_ASE_MIPS16E2 0x00000400 /* MIPS16e2 */
#endif /* _ASM_CPU_H */
diff --git a/arch/mips/include/asm/floppy.h b/arch/mips/include/asm/floppy.h
index d75aed36480a..021d09ae5670 100644
--- a/arch/mips/include/asm/floppy.h
+++ b/arch/mips/include/asm/floppy.h
@@ -10,11 +10,11 @@
#ifndef _ASM_FLOPPY_H
#define _ASM_FLOPPY_H
-#include <linux/dma-mapping.h>
+#include <asm/io.h>
static inline void fd_cacheflush(char * addr, long size)
{
- dma_cache_sync(NULL, addr, size, DMA_BIDIRECTIONAL);
+ dma_cache_wback_inv((unsigned long)addr, size);
}
#define MAX_BUFFER_SECTORS 24
diff --git a/arch/mips/include/asm/fpu_emulator.h b/arch/mips/include/asm/fpu_emulator.h
index c05369e0b8d6..b36097d3cbf4 100644
--- a/arch/mips/include/asm/fpu_emulator.h
+++ b/arch/mips/include/asm/fpu_emulator.h
@@ -36,6 +36,7 @@ struct mips_fpu_emulator_stats {
unsigned long emulated;
unsigned long loads;
unsigned long stores;
+ unsigned long branches;
unsigned long cp1ops;
unsigned long cp1xops;
unsigned long errors;
@@ -45,6 +46,121 @@ struct mips_fpu_emulator_stats {
unsigned long ieee754_zerodiv;
unsigned long ieee754_invalidop;
unsigned long ds_emul;
+
+ unsigned long abs_s;
+ unsigned long abs_d;
+ unsigned long add_s;
+ unsigned long add_d;
+ unsigned long bc1eqz;
+ unsigned long bc1nez;
+ unsigned long ceil_w_s;
+ unsigned long ceil_w_d;
+ unsigned long ceil_l_s;
+ unsigned long ceil_l_d;
+ unsigned long class_s;
+ unsigned long class_d;
+ unsigned long cmp_af_s;
+ unsigned long cmp_af_d;
+ unsigned long cmp_eq_s;
+ unsigned long cmp_eq_d;
+ unsigned long cmp_le_s;
+ unsigned long cmp_le_d;
+ unsigned long cmp_lt_s;
+ unsigned long cmp_lt_d;
+ unsigned long cmp_ne_s;
+ unsigned long cmp_ne_d;
+ unsigned long cmp_or_s;
+ unsigned long cmp_or_d;
+ unsigned long cmp_ueq_s;
+ unsigned long cmp_ueq_d;
+ unsigned long cmp_ule_s;
+ unsigned long cmp_ule_d;
+ unsigned long cmp_ult_s;
+ unsigned long cmp_ult_d;
+ unsigned long cmp_un_s;
+ unsigned long cmp_un_d;
+ unsigned long cmp_une_s;
+ unsigned long cmp_une_d;
+ unsigned long cmp_saf_s;
+ unsigned long cmp_saf_d;
+ unsigned long cmp_seq_s;
+ unsigned long cmp_seq_d;
+ unsigned long cmp_sle_s;
+ unsigned long cmp_sle_d;
+ unsigned long cmp_slt_s;
+ unsigned long cmp_slt_d;
+ unsigned long cmp_sne_s;
+ unsigned long cmp_sne_d;
+ unsigned long cmp_sor_s;
+ unsigned long cmp_sor_d;
+ unsigned long cmp_sueq_s;
+ unsigned long cmp_sueq_d;
+ unsigned long cmp_sule_s;
+ unsigned long cmp_sule_d;
+ unsigned long cmp_sult_s;
+ unsigned long cmp_sult_d;
+ unsigned long cmp_sun_s;
+ unsigned long cmp_sun_d;
+ unsigned long cmp_sune_s;
+ unsigned long cmp_sune_d;
+ unsigned long cvt_d_l;
+ unsigned long cvt_d_s;
+ unsigned long cvt_d_w;
+ unsigned long cvt_l_s;
+ unsigned long cvt_l_d;
+ unsigned long cvt_s_d;
+ unsigned long cvt_s_l;
+ unsigned long cvt_s_w;
+ unsigned long cvt_w_s;
+ unsigned long cvt_w_d;
+ unsigned long div_s;
+ unsigned long div_d;
+ unsigned long floor_w_s;
+ unsigned long floor_w_d;
+ unsigned long floor_l_s;
+ unsigned long floor_l_d;
+ unsigned long maddf_s;
+ unsigned long maddf_d;
+ unsigned long max_s;
+ unsigned long max_d;
+ unsigned long maxa_s;
+ unsigned long maxa_d;
+ unsigned long min_s;
+ unsigned long min_d;
+ unsigned long mina_s;
+ unsigned long mina_d;
+ unsigned long mov_s;
+ unsigned long mov_d;
+ unsigned long msubf_s;
+ unsigned long msubf_d;
+ unsigned long mul_s;
+ unsigned long mul_d;
+ unsigned long neg_s;
+ unsigned long neg_d;
+ unsigned long recip_s;
+ unsigned long recip_d;
+ unsigned long rint_s;
+ unsigned long rint_d;
+ unsigned long round_w_s;
+ unsigned long round_w_d;
+ unsigned long round_l_s;
+ unsigned long round_l_d;
+ unsigned long rsqrt_s;
+ unsigned long rsqrt_d;
+ unsigned long sel_s;
+ unsigned long sel_d;
+ unsigned long seleqz_s;
+ unsigned long seleqz_d;
+ unsigned long selnez_s;
+ unsigned long selnez_d;
+ unsigned long sqrt_s;
+ unsigned long sqrt_d;
+ unsigned long sub_s;
+ unsigned long sub_d;
+ unsigned long trunc_w_s;
+ unsigned long trunc_w_d;
+ unsigned long trunc_l_s;
+ unsigned long trunc_l_d;
};
DECLARE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats);
@@ -62,7 +178,7 @@ do { \
extern int fpu_emulator_cop1Handler(struct pt_regs *xcp,
struct mips_fpu_struct *ctx, int has_fpu,
- void *__user *fault_addr);
+ void __user **fault_addr);
void force_fcr31_sig(unsigned long fcr31, void __user *fault_addr,
struct task_struct *tsk);
int process_fpemu_return(int sig, void __user *fault_addr,
diff --git a/arch/mips/include/asm/futex.h b/arch/mips/include/asm/futex.h
index 1de190bdfb9c..a9e61ea54ca9 100644
--- a/arch/mips/include/asm/futex.h
+++ b/arch/mips/include/asm/futex.h
@@ -83,18 +83,9 @@
}
static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
int oldval = 0, ret;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
- return -EFAULT;
pagefault_disable();
@@ -125,17 +116,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
pagefault_enable();
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
- case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
- case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
- case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
- case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
- case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
- default: ret = -ENOSYS;
- }
- }
+ if (!ret)
+ *oval = oldval;
+
return ret;
}
diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index ecabc00c1e66..0cbf3af37eca 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -632,4 +632,6 @@ extern void (*_dma_cache_inv)(unsigned long start, unsigned long size);
*/
#define xlate_dev_kmem_ptr(p) p
+void __ioread64_copy(void *to, const void __iomem *from, size_t count);
+
#endif /* _ASM_IO_H */
diff --git a/arch/mips/include/asm/irq.h b/arch/mips/include/asm/irq.h
index ddd1c918103b..c5d351786416 100644
--- a/arch/mips/include/asm/irq.h
+++ b/arch/mips/include/asm/irq.h
@@ -18,7 +18,7 @@
#include <irq.h>
#define IRQ_STACK_SIZE THREAD_SIZE
-#define IRQ_STACK_START (IRQ_STACK_SIZE - sizeof(unsigned long))
+#define IRQ_STACK_START (IRQ_STACK_SIZE - 16)
extern void *irq_stack[NR_CPUS];
diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h
index 2998479fd4e8..a9af1d2dcd69 100644
--- a/arch/mips/include/asm/kvm_host.h
+++ b/arch/mips/include/asm/kvm_host.h
@@ -938,11 +938,6 @@ void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
-static inline void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm,
- unsigned long address)
-{
-}
-
/* Emulation */
int kvm_get_inst(u32 *opc, struct kvm_vcpu *vcpu, u32 *out);
enum emulation_result update_pc(struct kvm_vcpu *vcpu, u32 cause);
diff --git a/arch/mips/include/asm/mach-ath25/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ath25/cpu-feature-overrides.h
index ade0356df257..e6a8108cde4e 100644
--- a/arch/mips/include/asm/mach-ath25/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-ath25/cpu-feature-overrides.h
@@ -40,6 +40,7 @@
#endif
#define cpu_has_mips16 0
+#define cpu_has_mips16e2 0
#define cpu_has_mdmx 0
#define cpu_has_mips3d 0
#define cpu_has_smartmips 0
diff --git a/arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h b/arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h
index c5b6eef0efa7..f439cf9cf9d1 100644
--- a/arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h
@@ -8,12 +8,16 @@
#define __ASM_MACH_AU1X00_CPU_FEATURE_OVERRIDES_H
#define cpu_has_tlb 1
+#define cpu_has_ftlb 0
#define cpu_has_tlbinv 0
#define cpu_has_segments 0
#define cpu_has_eva 0
#define cpu_has_htw 0
+#define cpu_has_ldpte 0
#define cpu_has_rixiex 0
#define cpu_has_maar 0
+#define cpu_has_rw_llb 0
+#define cpu_has_3kex 0
#define cpu_has_4kex 1
#define cpu_has_3k_cache 0
#define cpu_has_4k_cache 1
@@ -30,23 +34,36 @@
#define cpu_has_mcheck 1
#define cpu_has_ejtag 1
#define cpu_has_llsc 1
+#define cpu_has_guestctl0ext 0
+#define cpu_has_guestctl1 0
+#define cpu_has_guestctl2 0
+#define cpu_has_guestid 0
+#define cpu_has_drg 0
+#define cpu_has_bp_ghist 0
#define cpu_has_mips16 0
+#define cpu_has_mips16e2 0
#define cpu_has_mdmx 0
#define cpu_has_mips3d 0
#define cpu_has_smartmips 0
#define cpu_has_rixi 0
#define cpu_has_mmips 0
+#define cpu_has_lpa 0
+#define cpu_has_mhv 0
#define cpu_has_vtag_icache 0
#define cpu_has_dc_aliases 0
#define cpu_has_ic_fills_f_dc 1
#define cpu_has_pindexed_dcache 0
#define cpu_has_mips32r1 1
#define cpu_has_mips32r2 0
+#define cpu_has_mips32r6 0
#define cpu_has_mips64r1 0
#define cpu_has_mips64r2 0
+#define cpu_has_mips64r6 0
#define cpu_has_dsp 0
#define cpu_has_dsp2 0
+#define cpu_has_dsp3 0
#define cpu_has_mipsmt 0
+#define cpu_has_vp 0
#define cpu_has_userlocal 0
#define cpu_has_nofpuex 0
#define cpu_has_64bits 0
@@ -57,9 +74,19 @@
#define cpu_dcache_line_size() 32
#define cpu_icache_line_size() 32
+#define cpu_scache_line_size() 0
#define cpu_has_perf_cntr_intr_bit 0
#define cpu_has_vz 0
#define cpu_has_msa 0
+#define cpu_has_fre 0
+#define cpu_has_cdmm 0
+#define cpu_has_small_pages 0
+#define cpu_has_nan_legacy 1
+#define cpu_has_nan_2008 1
+#define cpu_has_ebase_wg 0
+#define cpu_has_badinstr 0
+#define cpu_has_badinstrp 0
+#define cpu_has_contextconfig 0
#endif /* __ASM_MACH_AU1X00_CPU_FEATURE_OVERRIDES_H */
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
index 5035f09c5427..24080af570f9 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
@@ -710,7 +710,7 @@
/* Broadcom 6345 ENET DMA definitions */
#define ENETDMA_6345_CHANCFG_REG (0x00)
-#define ENETDMA_6345_MAXBURST_REG (0x40)
+#define ENETDMA_6345_MAXBURST_REG (0x04)
#define ENETDMA_6345_RSTART_REG (0x08)
diff --git a/arch/mips/include/asm/mach-bcm63xx/cpu-feature-overrides.h b/arch/mips/include/asm/mach-bcm63xx/cpu-feature-overrides.h
index bc1167dbd4e3..b56cf10b91d3 100644
--- a/arch/mips/include/asm/mach-bcm63xx/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-bcm63xx/cpu-feature-overrides.h
@@ -19,6 +19,7 @@
#define cpu_has_ejtag 1
#define cpu_has_llsc 1
#define cpu_has_mips16 0
+#define cpu_has_mips16e2 0
#define cpu_has_mdmx 0
#define cpu_has_mips3d 0
#define cpu_has_smartmips 0
diff --git a/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h b/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
index bd8b9bbe1771..a4f798629c3d 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
@@ -46,9 +46,9 @@
#define cpu_has_64bits 1
#define cpu_has_octeon_cache 1
#define cpu_has_saa octeon_has_saa()
-#define cpu_has_mips32r1 0
-#define cpu_has_mips32r2 0
-#define cpu_has_mips64r1 0
+#define cpu_has_mips32r1 1
+#define cpu_has_mips32r2 1
+#define cpu_has_mips64r1 1
#define cpu_has_mips64r2 1
#define cpu_has_dsp 0
#define cpu_has_dsp2 0
diff --git a/arch/mips/include/asm/mach-cobalt/cpu-feature-overrides.h b/arch/mips/include/asm/mach-cobalt/cpu-feature-overrides.h
index 30c5cd9fd973..291fe90aafa5 100644
--- a/arch/mips/include/asm/mach-cobalt/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-cobalt/cpu-feature-overrides.h
@@ -37,6 +37,7 @@
#endif
#define cpu_has_mips16 0
+#define cpu_has_mips16e2 0
#define cpu_has_mdmx 0
#define cpu_has_mips3d 0
#define cpu_has_smartmips 0
diff --git a/arch/mips/include/asm/mach-dec/cpu-feature-overrides.h b/arch/mips/include/asm/mach-dec/cpu-feature-overrides.h
index 21eae03d752a..2ec10237688c 100644
--- a/arch/mips/include/asm/mach-dec/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-dec/cpu-feature-overrides.h
@@ -27,6 +27,7 @@
#define cpu_has_mcheck 0
#define cpu_has_ejtag 0
#define cpu_has_mips16 0
+#define cpu_has_mips16e2 0
#define cpu_has_mdmx 0
#define cpu_has_mips3d 0
#define cpu_has_smartmips 0
diff --git a/arch/mips/include/asm/mach-generic/mc146818rtc.h b/arch/mips/include/asm/mach-generic/mc146818rtc.h
index 0b9a942f079d..9c72e540ff56 100644
--- a/arch/mips/include/asm/mach-generic/mc146818rtc.h
+++ b/arch/mips/include/asm/mach-generic/mc146818rtc.h
@@ -27,7 +27,7 @@ static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
outb_p(data, RTC_PORT(1));
}
-#define RTC_ALWAYS_BCD 1
+#define RTC_ALWAYS_BCD 0
#ifndef mc146818_decode_year
#define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1900)
diff --git a/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h
index 9b19b72dba56..b80d5eafc9db 100644
--- a/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h
@@ -19,6 +19,7 @@
#define cpu_has_32fpr 1
#define cpu_has_counter 1
#define cpu_has_mips16 0
+#define cpu_has_mips16e2 0
#define cpu_has_divec 0
#define cpu_has_cache_cdex_p 1
#define cpu_has_prefetch 0
diff --git a/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h
index 7449794eade6..136d6d464e32 100644
--- a/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h
@@ -43,6 +43,7 @@
#define cpu_has_ejtag 0
#define cpu_has_llsc 1
#define cpu_has_mips16 0
+#define cpu_has_mips16e2 0
#define cpu_has_mdmx 0
#define cpu_has_mips3d 0
#define cpu_has_smartmips 0
diff --git a/arch/mips/include/asm/mach-ip27/topology.h b/arch/mips/include/asm/mach-ip27/topology.h
index defd135e7ac8..3fb7a0e09494 100644
--- a/arch/mips/include/asm/mach-ip27/topology.h
+++ b/arch/mips/include/asm/mach-ip27/topology.h
@@ -23,7 +23,6 @@ struct cpuinfo_ip27 {
extern struct cpuinfo_ip27 sn_cpu_info[NR_CPUS];
#define cpu_to_node(cpu) (sn_cpu_info[(cpu)].p_nodeid)
-#define parent_node(node) (node)
#define cpumask_of_node(node) ((node) == -1 ? \
cpu_all_mask : \
&hub_data(node)->h_cpus)
diff --git a/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h
index 4cec06d133db..ba8b4e30b3e2 100644
--- a/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h
@@ -16,6 +16,7 @@
*/
#define cpu_has_watch 1
#define cpu_has_mips16 0
+#define cpu_has_mips16e2 0
#define cpu_has_divec 0
#define cpu_has_vce 0
#define cpu_has_cache_cdex_p 0
diff --git a/arch/mips/include/asm/mach-ip32/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip32/cpu-feature-overrides.h
index 241409b78ff1..63b4c889094b 100644
--- a/arch/mips/include/asm/mach-ip32/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-ip32/cpu-feature-overrides.h
@@ -29,6 +29,7 @@
#define cpu_has_32fpr 1
#define cpu_has_counter 1
#define cpu_has_mips16 0
+#define cpu_has_mips16e2 0
#define cpu_has_vce 0
#define cpu_has_cache_cdex_s 0
#define cpu_has_mcheck 0
diff --git a/arch/mips/include/asm/mach-jz4740/cpu-feature-overrides.h b/arch/mips/include/asm/mach-jz4740/cpu-feature-overrides.h
index 0933f94a1e69..7c5e576f9d96 100644
--- a/arch/mips/include/asm/mach-jz4740/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-jz4740/cpu-feature-overrides.h
@@ -23,6 +23,7 @@
#define cpu_has_ejtag 1
#define cpu_has_llsc 1
#define cpu_has_mips16 0
+#define cpu_has_mips16e2 0
#define cpu_has_mdmx 0
#define cpu_has_mips3d 0
#define cpu_has_smartmips 0
diff --git a/arch/mips/include/asm/mach-jz4740/gpio.h b/arch/mips/include/asm/mach-jz4740/gpio.h
index 7c7708a23baa..fd847c984701 100644
--- a/arch/mips/include/asm/mach-jz4740/gpio.h
+++ b/arch/mips/include/asm/mach-jz4740/gpio.h
@@ -16,380 +16,9 @@
#ifndef _JZ_GPIO_H
#define _JZ_GPIO_H
-#include <linux/types.h>
-
-enum jz_gpio_function {
- JZ_GPIO_FUNC_NONE,
- JZ_GPIO_FUNC1,
- JZ_GPIO_FUNC2,
- JZ_GPIO_FUNC3,
-};
-
-/*
- Usually a driver for a SoC component has to request several gpio pins and
- configure them as function pins.
- jz_gpio_bulk_request can be used to ease this process.
- Usually one would do something like:
-
- static const struct jz_gpio_bulk_request i2c_pins[] = {
- JZ_GPIO_BULK_PIN(I2C_SDA),
- JZ_GPIO_BULK_PIN(I2C_SCK),
- };
-
- inside the probe function:
-
- ret = jz_gpio_bulk_request(i2c_pins, ARRAY_SIZE(i2c_pins));
- if (ret) {
- ...
-
- inside the remove function:
-
- jz_gpio_bulk_free(i2c_pins, ARRAY_SIZE(i2c_pins));
-
-*/
-
-struct jz_gpio_bulk_request {
- int gpio;
- const char *name;
- enum jz_gpio_function function;
-};
-
-#define JZ_GPIO_BULK_PIN(pin) { \
- .gpio = JZ_GPIO_ ## pin, \
- .name = #pin, \
- .function = JZ_GPIO_FUNC_ ## pin \
-}
-
-int jz_gpio_bulk_request(const struct jz_gpio_bulk_request *request, size_t num);
-void jz_gpio_bulk_free(const struct jz_gpio_bulk_request *request, size_t num);
-void jz_gpio_bulk_suspend(const struct jz_gpio_bulk_request *request, size_t num);
-void jz_gpio_bulk_resume(const struct jz_gpio_bulk_request *request, size_t num);
-void jz_gpio_enable_pullup(unsigned gpio);
-void jz_gpio_disable_pullup(unsigned gpio);
-int jz_gpio_set_function(int gpio, enum jz_gpio_function function);
-
-int jz_gpio_port_direction_input(int port, uint32_t mask);
-int jz_gpio_port_direction_output(int port, uint32_t mask);
-void jz_gpio_port_set_value(int port, uint32_t value, uint32_t mask);
-uint32_t jz_gpio_port_get_value(int port, uint32_t mask);
-
#define JZ_GPIO_PORTA(x) ((x) + 32 * 0)
#define JZ_GPIO_PORTB(x) ((x) + 32 * 1)
#define JZ_GPIO_PORTC(x) ((x) + 32 * 2)
#define JZ_GPIO_PORTD(x) ((x) + 32 * 3)
-/* Port A function pins */
-#define JZ_GPIO_MEM_DATA0 JZ_GPIO_PORTA(0)
-#define JZ_GPIO_MEM_DATA1 JZ_GPIO_PORTA(1)
-#define JZ_GPIO_MEM_DATA2 JZ_GPIO_PORTA(2)
-#define JZ_GPIO_MEM_DATA3 JZ_GPIO_PORTA(3)
-#define JZ_GPIO_MEM_DATA4 JZ_GPIO_PORTA(4)
-#define JZ_GPIO_MEM_DATA5 JZ_GPIO_PORTA(5)
-#define JZ_GPIO_MEM_DATA6 JZ_GPIO_PORTA(6)
-#define JZ_GPIO_MEM_DATA7 JZ_GPIO_PORTA(7)
-#define JZ_GPIO_MEM_DATA8 JZ_GPIO_PORTA(8)
-#define JZ_GPIO_MEM_DATA9 JZ_GPIO_PORTA(9)
-#define JZ_GPIO_MEM_DATA10 JZ_GPIO_PORTA(10)
-#define JZ_GPIO_MEM_DATA11 JZ_GPIO_PORTA(11)
-#define JZ_GPIO_MEM_DATA12 JZ_GPIO_PORTA(12)
-#define JZ_GPIO_MEM_DATA13 JZ_GPIO_PORTA(13)
-#define JZ_GPIO_MEM_DATA14 JZ_GPIO_PORTA(14)
-#define JZ_GPIO_MEM_DATA15 JZ_GPIO_PORTA(15)
-#define JZ_GPIO_MEM_DATA16 JZ_GPIO_PORTA(16)
-#define JZ_GPIO_MEM_DATA17 JZ_GPIO_PORTA(17)
-#define JZ_GPIO_MEM_DATA18 JZ_GPIO_PORTA(18)
-#define JZ_GPIO_MEM_DATA19 JZ_GPIO_PORTA(19)
-#define JZ_GPIO_MEM_DATA20 JZ_GPIO_PORTA(20)
-#define JZ_GPIO_MEM_DATA21 JZ_GPIO_PORTA(21)
-#define JZ_GPIO_MEM_DATA22 JZ_GPIO_PORTA(22)
-#define JZ_GPIO_MEM_DATA23 JZ_GPIO_PORTA(23)
-#define JZ_GPIO_MEM_DATA24 JZ_GPIO_PORTA(24)
-#define JZ_GPIO_MEM_DATA25 JZ_GPIO_PORTA(25)
-#define JZ_GPIO_MEM_DATA26 JZ_GPIO_PORTA(26)
-#define JZ_GPIO_MEM_DATA27 JZ_GPIO_PORTA(27)
-#define JZ_GPIO_MEM_DATA28 JZ_GPIO_PORTA(28)
-#define JZ_GPIO_MEM_DATA29 JZ_GPIO_PORTA(29)
-#define JZ_GPIO_MEM_DATA30 JZ_GPIO_PORTA(30)
-#define JZ_GPIO_MEM_DATA31 JZ_GPIO_PORTA(31)
-
-#define JZ_GPIO_FUNC_MEM_DATA0 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA1 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA2 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA3 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA4 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA5 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA6 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA7 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA8 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA9 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA10 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA11 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA12 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA13 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA14 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA15 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA16 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA17 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA18 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA19 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA20 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA21 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA22 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA23 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA24 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA25 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA26 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA27 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA28 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA29 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA30 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DATA31 JZ_GPIO_FUNC1
-
-/* Port B function pins */
-#define JZ_GPIO_MEM_ADDR0 JZ_GPIO_PORTB(0)
-#define JZ_GPIO_MEM_ADDR1 JZ_GPIO_PORTB(1)
-#define JZ_GPIO_MEM_ADDR2 JZ_GPIO_PORTB(2)
-#define JZ_GPIO_MEM_ADDR3 JZ_GPIO_PORTB(3)
-#define JZ_GPIO_MEM_ADDR4 JZ_GPIO_PORTB(4)
-#define JZ_GPIO_MEM_ADDR5 JZ_GPIO_PORTB(5)
-#define JZ_GPIO_MEM_ADDR6 JZ_GPIO_PORTB(6)
-#define JZ_GPIO_MEM_ADDR7 JZ_GPIO_PORTB(7)
-#define JZ_GPIO_MEM_ADDR8 JZ_GPIO_PORTB(8)
-#define JZ_GPIO_MEM_ADDR9 JZ_GPIO_PORTB(9)
-#define JZ_GPIO_MEM_ADDR10 JZ_GPIO_PORTB(10)
-#define JZ_GPIO_MEM_ADDR11 JZ_GPIO_PORTB(11)
-#define JZ_GPIO_MEM_ADDR12 JZ_GPIO_PORTB(12)
-#define JZ_GPIO_MEM_ADDR13 JZ_GPIO_PORTB(13)
-#define JZ_GPIO_MEM_ADDR14 JZ_GPIO_PORTB(14)
-#define JZ_GPIO_MEM_ADDR15 JZ_GPIO_PORTB(15)
-#define JZ_GPIO_MEM_ADDR16 JZ_GPIO_PORTB(16)
-#define JZ_GPIO_LCD_CLS JZ_GPIO_PORTB(17)
-#define JZ_GPIO_LCD_SPL JZ_GPIO_PORTB(18)
-#define JZ_GPIO_MEM_DCS JZ_GPIO_PORTB(19)
-#define JZ_GPIO_MEM_RAS JZ_GPIO_PORTB(20)
-#define JZ_GPIO_MEM_CAS JZ_GPIO_PORTB(21)
-#define JZ_GPIO_MEM_SDWE JZ_GPIO_PORTB(22)
-#define JZ_GPIO_MEM_CKE JZ_GPIO_PORTB(23)
-#define JZ_GPIO_MEM_CKO JZ_GPIO_PORTB(24)
-#define JZ_GPIO_MEM_CS0 JZ_GPIO_PORTB(25)
-#define JZ_GPIO_MEM_CS1 JZ_GPIO_PORTB(26)
-#define JZ_GPIO_MEM_CS2 JZ_GPIO_PORTB(27)
-#define JZ_GPIO_MEM_CS3 JZ_GPIO_PORTB(28)
-#define JZ_GPIO_MEM_RD JZ_GPIO_PORTB(29)
-#define JZ_GPIO_MEM_WR JZ_GPIO_PORTB(30)
-#define JZ_GPIO_MEM_WE0 JZ_GPIO_PORTB(31)
-
-#define JZ_GPIO_FUNC_MEM_ADDR0 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_ADDR1 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_ADDR2 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_ADDR3 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_ADDR4 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_ADDR5 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_ADDR6 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_ADDR7 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_ADDR8 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_ADDR9 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_ADDR10 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_ADDR11 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_ADDR12 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_ADDR13 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_ADDR14 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_ADDR15 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_ADDR16 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_CLS JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_SPL JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_DCS JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_RAS JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_CAS JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_SDWE JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_CKE JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_CKO JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_CS0 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_CS1 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_CS2 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_CS3 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_RD JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_WR JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_WE0 JZ_GPIO_FUNC1
-
-
-#define JZ_GPIO_MEM_ADDR21 JZ_GPIO_PORTB(17)
-#define JZ_GPIO_MEM_ADDR22 JZ_GPIO_PORTB(18)
-
-#define JZ_GPIO_FUNC_MEM_ADDR21 JZ_GPIO_FUNC2
-#define JZ_GPIO_FUNC_MEM_ADDR22 JZ_GPIO_FUNC2
-
-/* Port C function pins */
-#define JZ_GPIO_LCD_DATA0 JZ_GPIO_PORTC(0)
-#define JZ_GPIO_LCD_DATA1 JZ_GPIO_PORTC(1)
-#define JZ_GPIO_LCD_DATA2 JZ_GPIO_PORTC(2)
-#define JZ_GPIO_LCD_DATA3 JZ_GPIO_PORTC(3)
-#define JZ_GPIO_LCD_DATA4 JZ_GPIO_PORTC(4)
-#define JZ_GPIO_LCD_DATA5 JZ_GPIO_PORTC(5)
-#define JZ_GPIO_LCD_DATA6 JZ_GPIO_PORTC(6)
-#define JZ_GPIO_LCD_DATA7 JZ_GPIO_PORTC(7)
-#define JZ_GPIO_LCD_DATA8 JZ_GPIO_PORTC(8)
-#define JZ_GPIO_LCD_DATA9 JZ_GPIO_PORTC(9)
-#define JZ_GPIO_LCD_DATA10 JZ_GPIO_PORTC(10)
-#define JZ_GPIO_LCD_DATA11 JZ_GPIO_PORTC(11)
-#define JZ_GPIO_LCD_DATA12 JZ_GPIO_PORTC(12)
-#define JZ_GPIO_LCD_DATA13 JZ_GPIO_PORTC(13)
-#define JZ_GPIO_LCD_DATA14 JZ_GPIO_PORTC(14)
-#define JZ_GPIO_LCD_DATA15 JZ_GPIO_PORTC(15)
-#define JZ_GPIO_LCD_DATA16 JZ_GPIO_PORTC(16)
-#define JZ_GPIO_LCD_DATA17 JZ_GPIO_PORTC(17)
-#define JZ_GPIO_LCD_PCLK JZ_GPIO_PORTC(18)
-#define JZ_GPIO_LCD_HSYNC JZ_GPIO_PORTC(19)
-#define JZ_GPIO_LCD_VSYNC JZ_GPIO_PORTC(20)
-#define JZ_GPIO_LCD_DE JZ_GPIO_PORTC(21)
-#define JZ_GPIO_LCD_PS JZ_GPIO_PORTC(22)
-#define JZ_GPIO_LCD_REV JZ_GPIO_PORTC(23)
-#define JZ_GPIO_MEM_WE1 JZ_GPIO_PORTC(24)
-#define JZ_GPIO_MEM_WE2 JZ_GPIO_PORTC(25)
-#define JZ_GPIO_MEM_WE3 JZ_GPIO_PORTC(26)
-#define JZ_GPIO_MEM_WAIT JZ_GPIO_PORTC(27)
-#define JZ_GPIO_MEM_FRE JZ_GPIO_PORTC(28)
-#define JZ_GPIO_MEM_FWE JZ_GPIO_PORTC(29)
-
-#define JZ_GPIO_FUNC_LCD_DATA0 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_DATA1 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_DATA2 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_DATA3 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_DATA4 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_DATA5 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_DATA6 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_DATA7 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_DATA8 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_DATA9 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_DATA10 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_DATA11 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_DATA12 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_DATA13 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_DATA14 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_DATA15 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_DATA16 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_DATA17 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_PCLK JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_VSYNC JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_HSYNC JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_DE JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_PS JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_LCD_REV JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_WE1 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_WE2 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_WE3 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_WAIT JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_FRE JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MEM_FWE JZ_GPIO_FUNC1
-
-
-#define JZ_GPIO_MEM_ADDR19 JZ_GPIO_PORTB(22)
-#define JZ_GPIO_MEM_ADDR20 JZ_GPIO_PORTB(23)
-
-#define JZ_GPIO_FUNC_MEM_ADDR19 JZ_GPIO_FUNC2
-#define JZ_GPIO_FUNC_MEM_ADDR20 JZ_GPIO_FUNC2
-
-/* Port D function pins */
-#define JZ_GPIO_CIM_DATA0 JZ_GPIO_PORTD(0)
-#define JZ_GPIO_CIM_DATA1 JZ_GPIO_PORTD(1)
-#define JZ_GPIO_CIM_DATA2 JZ_GPIO_PORTD(2)
-#define JZ_GPIO_CIM_DATA3 JZ_GPIO_PORTD(3)
-#define JZ_GPIO_CIM_DATA4 JZ_GPIO_PORTD(4)
-#define JZ_GPIO_CIM_DATA5 JZ_GPIO_PORTD(5)
-#define JZ_GPIO_CIM_DATA6 JZ_GPIO_PORTD(6)
-#define JZ_GPIO_CIM_DATA7 JZ_GPIO_PORTD(7)
-#define JZ_GPIO_MSC_CMD JZ_GPIO_PORTD(8)
-#define JZ_GPIO_MSC_CLK JZ_GPIO_PORTD(9)
-#define JZ_GPIO_MSC_DATA0 JZ_GPIO_PORTD(10)
-#define JZ_GPIO_MSC_DATA1 JZ_GPIO_PORTD(11)
-#define JZ_GPIO_MSC_DATA2 JZ_GPIO_PORTD(12)
-#define JZ_GPIO_MSC_DATA3 JZ_GPIO_PORTD(13)
-#define JZ_GPIO_CIM_MCLK JZ_GPIO_PORTD(14)
-#define JZ_GPIO_CIM_PCLK JZ_GPIO_PORTD(15)
-#define JZ_GPIO_CIM_VSYNC JZ_GPIO_PORTD(16)
-#define JZ_GPIO_CIM_HSYNC JZ_GPIO_PORTD(17)
-#define JZ_GPIO_SPI_CLK JZ_GPIO_PORTD(18)
-#define JZ_GPIO_SPI_CE0 JZ_GPIO_PORTD(19)
-#define JZ_GPIO_SPI_DT JZ_GPIO_PORTD(20)
-#define JZ_GPIO_SPI_DR JZ_GPIO_PORTD(21)
-#define JZ_GPIO_SPI_CE1 JZ_GPIO_PORTD(22)
-#define JZ_GPIO_PWM0 JZ_GPIO_PORTD(23)
-#define JZ_GPIO_PWM1 JZ_GPIO_PORTD(24)
-#define JZ_GPIO_PWM2 JZ_GPIO_PORTD(25)
-#define JZ_GPIO_PWM3 JZ_GPIO_PORTD(26)
-#define JZ_GPIO_PWM4 JZ_GPIO_PORTD(27)
-#define JZ_GPIO_PWM5 JZ_GPIO_PORTD(28)
-#define JZ_GPIO_PWM6 JZ_GPIO_PORTD(30)
-#define JZ_GPIO_PWM7 JZ_GPIO_PORTD(31)
-
-#define JZ_GPIO_FUNC_CIM_DATA JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_CIM_DATA0 JZ_GPIO_FUNC_CIM_DATA
-#define JZ_GPIO_FUNC_CIM_DATA1 JZ_GPIO_FUNC_CIM_DATA
-#define JZ_GPIO_FUNC_CIM_DATA2 JZ_GPIO_FUNC_CIM_DATA
-#define JZ_GPIO_FUNC_CIM_DATA3 JZ_GPIO_FUNC_CIM_DATA
-#define JZ_GPIO_FUNC_CIM_DATA4 JZ_GPIO_FUNC_CIM_DATA
-#define JZ_GPIO_FUNC_CIM_DATA5 JZ_GPIO_FUNC_CIM_DATA
-#define JZ_GPIO_FUNC_CIM_DATA6 JZ_GPIO_FUNC_CIM_DATA
-#define JZ_GPIO_FUNC_CIM_DATA7 JZ_GPIO_FUNC_CIM_DATA
-#define JZ_GPIO_FUNC_MSC_CMD JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MSC_CLK JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MSC_DATA JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_MSC_DATA0 JZ_GPIO_FUNC_MSC_DATA
-#define JZ_GPIO_FUNC_MSC_DATA1 JZ_GPIO_FUNC_MSC_DATA
-#define JZ_GPIO_FUNC_MSC_DATA2 JZ_GPIO_FUNC_MSC_DATA
-#define JZ_GPIO_FUNC_MSC_DATA3 JZ_GPIO_FUNC_MSC_DATA
-#define JZ_GPIO_FUNC_CIM_MCLK JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_CIM_PCLK JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_CIM_VSYNC JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_CIM_HSYNC JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_SPI_CLK JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_SPI_CE0 JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_SPI_DT JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_SPI_DR JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_SPI_CE1 JZ_GPIO_FUNC1
-
-#define JZ_GPIO_FUNC_PWM JZ_GPIO_FUNC1
-#define JZ_GPIO_FUNC_PWM0 JZ_GPIO_FUNC_PWM
-#define JZ_GPIO_FUNC_PWM1 JZ_GPIO_FUNC_PWM
-#define JZ_GPIO_FUNC_PWM2 JZ_GPIO_FUNC_PWM
-#define JZ_GPIO_FUNC_PWM3 JZ_GPIO_FUNC_PWM
-#define JZ_GPIO_FUNC_PWM4 JZ_GPIO_FUNC_PWM
-#define JZ_GPIO_FUNC_PWM5 JZ_GPIO_FUNC_PWM
-#define JZ_GPIO_FUNC_PWM6 JZ_GPIO_FUNC_PWM
-#define JZ_GPIO_FUNC_PWM7 JZ_GPIO_FUNC_PWM
-
-#define JZ_GPIO_MEM_SCLK_RSTN JZ_GPIO_PORTD(18)
-#define JZ_GPIO_MEM_BCLK JZ_GPIO_PORTD(19)
-#define JZ_GPIO_MEM_SDATO JZ_GPIO_PORTD(20)
-#define JZ_GPIO_MEM_SDATI JZ_GPIO_PORTD(21)
-#define JZ_GPIO_MEM_SYNC JZ_GPIO_PORTD(22)
-#define JZ_GPIO_I2C_SDA JZ_GPIO_PORTD(23)
-#define JZ_GPIO_I2C_SCK JZ_GPIO_PORTD(24)
-#define JZ_GPIO_UART0_TXD JZ_GPIO_PORTD(25)
-#define JZ_GPIO_UART0_RXD JZ_GPIO_PORTD(26)
-#define JZ_GPIO_MEM_ADDR17 JZ_GPIO_PORTD(27)
-#define JZ_GPIO_MEM_ADDR18 JZ_GPIO_PORTD(28)
-#define JZ_GPIO_UART0_CTS JZ_GPIO_PORTD(30)
-#define JZ_GPIO_UART0_RTS JZ_GPIO_PORTD(31)
-
-#define JZ_GPIO_FUNC_MEM_SCLK_RSTN JZ_GPIO_FUNC2
-#define JZ_GPIO_FUNC_MEM_BCLK JZ_GPIO_FUNC2
-#define JZ_GPIO_FUNC_MEM_SDATO JZ_GPIO_FUNC2
-#define JZ_GPIO_FUNC_MEM_SDATI JZ_GPIO_FUNC2
-#define JZ_GPIO_FUNC_MEM_SYNC JZ_GPIO_FUNC2
-#define JZ_GPIO_FUNC_I2C_SDA JZ_GPIO_FUNC2
-#define JZ_GPIO_FUNC_I2C_SCK JZ_GPIO_FUNC2
-#define JZ_GPIO_FUNC_UART0_TXD JZ_GPIO_FUNC2
-#define JZ_GPIO_FUNC_UART0_RXD JZ_GPIO_FUNC2
-#define JZ_GPIO_FUNC_MEM_ADDR17 JZ_GPIO_FUNC2
-#define JZ_GPIO_FUNC_MEM_ADDR18 JZ_GPIO_FUNC2
-#define JZ_GPIO_FUNC_UART0_CTS JZ_GPIO_FUNC2
-#define JZ_GPIO_FUNC_UART0_RTS JZ_GPIO_FUNC2
-
-#define JZ_GPIO_UART1_RXD JZ_GPIO_PORTD(30)
-#define JZ_GPIO_UART1_TXD JZ_GPIO_PORTD(31)
-
-#define JZ_GPIO_FUNC_UART1_RXD JZ_GPIO_FUNC3
-#define JZ_GPIO_FUNC_UART1_TXD JZ_GPIO_FUNC3
-
#endif
diff --git a/arch/mips/include/asm/mach-jz4740/jz4740_nand.h b/arch/mips/include/asm/mach-jz4740/jz4740_nand.h
index 7f7b0fc554da..f381d465e768 100644
--- a/arch/mips/include/asm/mach-jz4740/jz4740_nand.h
+++ b/arch/mips/include/asm/mach-jz4740/jz4740_nand.h
@@ -16,7 +16,7 @@
#ifndef __ASM_MACH_JZ4740_JZ4740_NAND_H__
#define __ASM_MACH_JZ4740_JZ4740_NAND_H__
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#define JZ_NAND_NUM_BANKS 4
diff --git a/arch/mips/include/asm/mach-lantiq/lantiq.h b/arch/mips/include/asm/mach-lantiq/lantiq.h
index 8064d7a4b33d..d750f93232e4 100644
--- a/arch/mips/include/asm/mach-lantiq/lantiq.h
+++ b/arch/mips/include/asm/mach-lantiq/lantiq.h
@@ -46,8 +46,6 @@ extern struct clk *clk_get_ppe(void);
/* find out what bootsource we have */
extern unsigned char ltq_boot_select(void);
-/* find out what caused the last cpu reset */
-extern int ltq_reset_cause(void);
/* find out the soc type */
extern int ltq_soc_type(void);
diff --git a/arch/mips/include/asm/mach-loongson64/boot_param.h b/arch/mips/include/asm/mach-loongson64/boot_param.h
index d3f3258b7cd4..9f9bb9c53785 100644
--- a/arch/mips/include/asm/mach-loongson64/boot_param.h
+++ b/arch/mips/include/asm/mach-loongson64/boot_param.h
@@ -27,12 +27,22 @@ struct efi_memory_map_loongson {
} __packed;
enum loongson_cpu_type {
- Loongson_2E = 0,
- Loongson_2F = 1,
- Loongson_3A = 2,
- Loongson_3B = 3,
- Loongson_1A = 4,
- Loongson_1B = 5
+ Legacy_2E = 0x0,
+ Legacy_2F = 0x1,
+ Legacy_3A = 0x2,
+ Legacy_3B = 0x3,
+ Legacy_1A = 0x4,
+ Legacy_1B = 0x5,
+ Legacy_2G = 0x6,
+ Legacy_2H = 0x7,
+ Loongson_1A = 0x100,
+ Loongson_1B = 0x101,
+ Loongson_2E = 0x200,
+ Loongson_2F = 0x201,
+ Loongson_2G = 0x202,
+ Loongson_2H = 0x203,
+ Loongson_3A = 0x300,
+ Loongson_3B = 0x301
};
/*
diff --git a/arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h b/arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h
index 89328a3d44d8..581915ce231c 100644
--- a/arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h
@@ -32,6 +32,7 @@
#define cpu_has_mcheck 0
#define cpu_has_mdmx 0
#define cpu_has_mips16 0
+#define cpu_has_mips16e2 0
#define cpu_has_mips3d 0
#define cpu_has_mipsmt 0
#define cpu_has_smartmips 0
diff --git a/arch/mips/include/asm/mach-loongson64/cs5536/cs5536_pci.h b/arch/mips/include/asm/mach-loongson64/cs5536/cs5536_pci.h
index 8a7ecb4d5c64..bf9dd9eb4ceb 100644
--- a/arch/mips/include/asm/mach-loongson64/cs5536/cs5536_pci.h
+++ b/arch/mips/include/asm/mach-loongson64/cs5536/cs5536_pci.h
@@ -80,7 +80,6 @@ extern u32 cs5536_pci_conf_read4(int function, int reg);
#define PCI_BAR3_REG 0x1c
#define PCI_BAR4_REG 0x20
#define PCI_BAR5_REG 0x24
-#define PCI_BAR_COUNT 6
#define PCI_BAR_RANGE_MASK 0xFFFFFFFF
/* CARDBUS CIS POINTER */
diff --git a/arch/mips/include/asm/mach-loongson64/loongson.h b/arch/mips/include/asm/mach-loongson64/loongson.h
index c68c0cc879c6..d0ae5d55413b 100644
--- a/arch/mips/include/asm/mach-loongson64/loongson.h
+++ b/arch/mips/include/asm/mach-loongson64/loongson.h
@@ -26,7 +26,7 @@ extern void mach_prepare_shutdown(void);
/* environment arguments from bootloader */
extern u32 cpu_clock_freq;
extern u32 memsize, highmemsize;
-extern struct plat_smp_ops loongson3_smp_ops;
+extern const struct plat_smp_ops loongson3_smp_ops;
/* loongson-specific command line, env and memory initialization */
extern void __init prom_init_memory(void);
diff --git a/arch/mips/include/asm/mach-loongson64/topology.h b/arch/mips/include/asm/mach-loongson64/topology.h
index 0d8f3b55bdbc..bcb885615fca 100644
--- a/arch/mips/include/asm/mach-loongson64/topology.h
+++ b/arch/mips/include/asm/mach-loongson64/topology.h
@@ -4,7 +4,6 @@
#ifdef CONFIG_NUMA
#define cpu_to_node(cpu) (cpu_logical_map(cpu) >> 2)
-#define parent_node(node) (node)
#define cpumask_of_node(node) (&__node_data[(node)]->cpumask)
struct pci_bus;
diff --git a/arch/mips/include/asm/mach-netlogic/cpu-feature-overrides.h b/arch/mips/include/asm/mach-netlogic/cpu-feature-overrides.h
index 091deb1700e5..0c29ff820bb9 100644
--- a/arch/mips/include/asm/mach-netlogic/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-netlogic/cpu-feature-overrides.h
@@ -13,6 +13,7 @@
#define cpu_has_4k_cache 1
#define cpu_has_watch 1
#define cpu_has_mips16 0
+#define cpu_has_mips16e2 0
#define cpu_has_counter 1
#define cpu_has_divec 1
#define cpu_has_vce 0
diff --git a/arch/mips/include/asm/mach-ralink/ralink_regs.h b/arch/mips/include/asm/mach-ralink/ralink_regs.h
index 9df1a53bcb36..b4e7dfa214eb 100644
--- a/arch/mips/include/asm/mach-ralink/ralink_regs.h
+++ b/arch/mips/include/asm/mach-ralink/ralink_regs.h
@@ -13,6 +13,8 @@
#ifndef _RALINK_REGS_H_
#define _RALINK_REGS_H_
+#include <linux/io.h>
+
enum ralink_soc_type {
RALINK_UNKNOWN = 0,
RT2880_SOC,
diff --git a/arch/mips/include/asm/mach-rc32434/cpu-feature-overrides.h b/arch/mips/include/asm/mach-rc32434/cpu-feature-overrides.h
index b15307597ee3..6a1087ee8c6e 100644
--- a/arch/mips/include/asm/mach-rc32434/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-rc32434/cpu-feature-overrides.h
@@ -48,6 +48,7 @@
#define cpu_has_llsc 1
#define cpu_has_mips16 0
+#define cpu_has_mips16e2 0
#define cpu_has_mdmx 0
#define cpu_has_mips3d 0
#define cpu_has_smartmips 0
diff --git a/arch/mips/include/asm/mach-rm/cpu-feature-overrides.h b/arch/mips/include/asm/mach-rm/cpu-feature-overrides.h
index d38be668e338..e1e182300fea 100644
--- a/arch/mips/include/asm/mach-rm/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-rm/cpu-feature-overrides.h
@@ -17,6 +17,7 @@
#define cpu_has_counter 1
#define cpu_has_watch 0
#define cpu_has_mips16 0
+#define cpu_has_mips16e2 0
#define cpu_has_divec 0
#define cpu_has_cache_cdex_p 1
#define cpu_has_prefetch 0
diff --git a/arch/mips/include/asm/mach-sibyte/cpu-feature-overrides.h b/arch/mips/include/asm/mach-sibyte/cpu-feature-overrides.h
index 92927b62b5a0..7022358057fd 100644
--- a/arch/mips/include/asm/mach-sibyte/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-sibyte/cpu-feature-overrides.h
@@ -13,6 +13,7 @@
*/
#define cpu_has_watch 1
#define cpu_has_mips16 0
+#define cpu_has_mips16e2 0
#define cpu_has_divec 1
#define cpu_has_vce 0
#define cpu_has_cache_cdex_p 0
diff --git a/arch/mips/include/asm/mach-tx49xx/cpu-feature-overrides.h b/arch/mips/include/asm/mach-tx49xx/cpu-feature-overrides.h
index 7f5144c6ce2d..b9d39dc45420 100644
--- a/arch/mips/include/asm/mach-tx49xx/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-tx49xx/cpu-feature-overrides.h
@@ -6,6 +6,7 @@
#define cpu_has_inclusive_pcaches 0
#define cpu_has_mips16 0
+#define cpu_has_mips16e2 0
#define cpu_has_mdmx 0
#define cpu_has_mips3d 0
#define cpu_has_smartmips 0
diff --git a/arch/mips/include/asm/machine.h b/arch/mips/include/asm/machine.h
index 6b444cd9526f..ecb6c7335484 100644
--- a/arch/mips/include/asm/machine.h
+++ b/arch/mips/include/asm/machine.h
@@ -60,4 +60,35 @@ mips_machine_is_compatible(const struct mips_machine *mach, const void *fdt)
return NULL;
}
+/**
+ * struct mips_fdt_fixup - Describe a fixup to apply to an FDT
+ * @apply: applies the fixup to @fdt, returns zero on success else -errno
+ * @description: a short description of the fixup
+ *
+ * Describes a fixup applied to an FDT blob by the @apply function. The
+ * @description field provides a short description of the fixup intended for
+ * use in error messages if the @apply function returns non-zero.
+ */
+struct mips_fdt_fixup {
+ int (*apply)(void *fdt);
+ const char *description;
+};
+
+/**
+ * apply_mips_fdt_fixups() - apply fixups to an FDT blob
+ * @fdt_out: buffer in which to place the fixed-up FDT
+ * @fdt_out_size: the size of the @fdt_out buffer
+ * @fdt_in: the FDT blob
+ * @fixups: pointer to an array of fixups to be applied
+ *
+ * Loop through the array of fixups pointed to by @fixups, calling the apply
+ * function on each until either one returns an error or we reach the end of
+ * the list as indicated by an entry with a NULL apply field.
+ *
+ * Return: zero on success, else -errno
+ */
+extern int __init apply_mips_fdt_fixups(void *fdt_out, size_t fdt_out_size,
+ const void *fdt_in,
+ const struct mips_fdt_fixup *fixups);
+
#endif /* __MIPS_ASM_MACHINE_H__ */
diff --git a/arch/mips/include/asm/mips-boards/maltaint.h b/arch/mips/include/asm/mips-boards/maltaint.h
index 987ff580466b..817698abf2eb 100644
--- a/arch/mips/include/asm/mips-boards/maltaint.h
+++ b/arch/mips/include/asm/mips-boards/maltaint.h
@@ -10,8 +10,6 @@
#ifndef _MIPS_MALTAINT_H
#define _MIPS_MALTAINT_H
-#include <linux/irqchip/mips-gic.h>
-
/*
* Interrupts 0..15 are used for Malta ISA compatible interrupts
*/
@@ -62,7 +60,4 @@
#define MSC01E_INT_PERFCTR 10
#define MSC01E_INT_CPUCTR 11
-/* GIC external interrupts */
-#define GIC_INT_I8259A GIC_SHARED_TO_HWIRQ(3)
-
#endif /* !(_MIPS_MALTAINT_H) */
diff --git a/arch/mips/include/asm/mips-cm.h b/arch/mips/include/asm/mips-cm.h
index cfdbab015769..f6231b91b724 100644
--- a/arch/mips/include/asm/mips-cm.h
+++ b/arch/mips/include/asm/mips-cm.h
@@ -8,16 +8,18 @@
* option) any later version.
*/
+#ifndef __MIPS_ASM_MIPS_CPS_H__
+# error Please include asm/mips-cps.h rather than asm/mips-cm.h
+#endif
+
#ifndef __MIPS_ASM_MIPS_CM_H__
#define __MIPS_ASM_MIPS_CM_H__
#include <linux/bitops.h>
#include <linux/errno.h>
-#include <linux/io.h>
-#include <linux/types.h>
/* The base address of the CM GCR block */
-extern void __iomem *mips_cm_base;
+extern void __iomem *mips_gcr_base;
/* The base address of the CM L2-only sync region */
extern void __iomem *mips_cm_l2sync_base;
@@ -80,7 +82,7 @@ static inline int mips_cm_probe(void)
static inline bool mips_cm_present(void)
{
#ifdef CONFIG_MIPS_CM
- return mips_cm_base != NULL;
+ return mips_gcr_base != NULL;
#else
return false;
#endif
@@ -112,321 +114,219 @@ static inline bool mips_cm_has_l2sync(void)
/* Size of the L2-only sync region */
#define MIPS_CM_L2SYNC_SIZE 0x1000
-/* Macros to ease the creation of register access functions */
-#define BUILD_CM_R_(name, off) \
-static inline unsigned long __iomem *addr_gcr_##name(void) \
-{ \
- return (unsigned long __iomem *)(mips_cm_base + (off)); \
-} \
- \
-static inline u32 read32_gcr_##name(void) \
-{ \
- return __raw_readl(addr_gcr_##name()); \
-} \
- \
-static inline u64 read64_gcr_##name(void) \
-{ \
- void __iomem *addr = addr_gcr_##name(); \
- u64 ret; \
- \
- if (mips_cm_is64) { \
- ret = __raw_readq(addr); \
- } else { \
- ret = __raw_readl(addr); \
- ret |= (u64)__raw_readl(addr + 0x4) << 32; \
- } \
- \
- return ret; \
-} \
- \
-static inline unsigned long read_gcr_##name(void) \
-{ \
- if (mips_cm_is64) \
- return read64_gcr_##name(); \
- else \
- return read32_gcr_##name(); \
-}
-
-#define BUILD_CM__W(name, off) \
-static inline void write32_gcr_##name(u32 value) \
-{ \
- __raw_writel(value, addr_gcr_##name()); \
-} \
- \
-static inline void write64_gcr_##name(u64 value) \
-{ \
- __raw_writeq(value, addr_gcr_##name()); \
-} \
- \
-static inline void write_gcr_##name(unsigned long value) \
-{ \
- if (mips_cm_is64) \
- write64_gcr_##name(value); \
- else \
- write32_gcr_##name(value); \
-}
-
-#define BUILD_CM_RW(name, off) \
- BUILD_CM_R_(name, off) \
- BUILD_CM__W(name, off)
-
-#define BUILD_CM_Cx_R_(name, off) \
- BUILD_CM_R_(cl_##name, MIPS_CM_CLCB_OFS + (off)) \
- BUILD_CM_R_(co_##name, MIPS_CM_COCB_OFS + (off))
-
-#define BUILD_CM_Cx__W(name, off) \
- BUILD_CM__W(cl_##name, MIPS_CM_CLCB_OFS + (off)) \
- BUILD_CM__W(co_##name, MIPS_CM_COCB_OFS + (off))
-
-#define BUILD_CM_Cx_RW(name, off) \
- BUILD_CM_Cx_R_(name, off) \
- BUILD_CM_Cx__W(name, off)
-
-/* GCB register accessor functions */
-BUILD_CM_R_(config, MIPS_CM_GCB_OFS + 0x00)
-BUILD_CM_RW(base, MIPS_CM_GCB_OFS + 0x08)
-BUILD_CM_RW(access, MIPS_CM_GCB_OFS + 0x20)
-BUILD_CM_R_(rev, MIPS_CM_GCB_OFS + 0x30)
-BUILD_CM_RW(err_control, MIPS_CM_GCB_OFS + 0x38)
-BUILD_CM_RW(error_mask, MIPS_CM_GCB_OFS + 0x40)
-BUILD_CM_RW(error_cause, MIPS_CM_GCB_OFS + 0x48)
-BUILD_CM_RW(error_addr, MIPS_CM_GCB_OFS + 0x50)
-BUILD_CM_RW(error_mult, MIPS_CM_GCB_OFS + 0x58)
-BUILD_CM_RW(l2_only_sync_base, MIPS_CM_GCB_OFS + 0x70)
-BUILD_CM_RW(gic_base, MIPS_CM_GCB_OFS + 0x80)
-BUILD_CM_RW(cpc_base, MIPS_CM_GCB_OFS + 0x88)
-BUILD_CM_RW(reg0_base, MIPS_CM_GCB_OFS + 0x90)
-BUILD_CM_RW(reg0_mask, MIPS_CM_GCB_OFS + 0x98)
-BUILD_CM_RW(reg1_base, MIPS_CM_GCB_OFS + 0xa0)
-BUILD_CM_RW(reg1_mask, MIPS_CM_GCB_OFS + 0xa8)
-BUILD_CM_RW(reg2_base, MIPS_CM_GCB_OFS + 0xb0)
-BUILD_CM_RW(reg2_mask, MIPS_CM_GCB_OFS + 0xb8)
-BUILD_CM_RW(reg3_base, MIPS_CM_GCB_OFS + 0xc0)
-BUILD_CM_RW(reg3_mask, MIPS_CM_GCB_OFS + 0xc8)
-BUILD_CM_R_(gic_status, MIPS_CM_GCB_OFS + 0xd0)
-BUILD_CM_R_(cpc_status, MIPS_CM_GCB_OFS + 0xf0)
-BUILD_CM_RW(l2_config, MIPS_CM_GCB_OFS + 0x130)
-BUILD_CM_RW(sys_config2, MIPS_CM_GCB_OFS + 0x150)
-BUILD_CM_RW(l2_pft_control, MIPS_CM_GCB_OFS + 0x300)
-BUILD_CM_RW(l2_pft_control_b, MIPS_CM_GCB_OFS + 0x308)
-BUILD_CM_RW(bev_base, MIPS_CM_GCB_OFS + 0x680)
-
-/* Core Local & Core Other register accessor functions */
-BUILD_CM_Cx_RW(reset_release, 0x00)
-BUILD_CM_Cx_RW(coherence, 0x08)
-BUILD_CM_Cx_R_(config, 0x10)
-BUILD_CM_Cx_RW(other, 0x18)
-BUILD_CM_Cx_RW(reset_base, 0x20)
-BUILD_CM_Cx_R_(id, 0x28)
-BUILD_CM_Cx_RW(reset_ext_base, 0x30)
-BUILD_CM_Cx_R_(tcid_0_priority, 0x40)
-BUILD_CM_Cx_R_(tcid_1_priority, 0x48)
-BUILD_CM_Cx_R_(tcid_2_priority, 0x50)
-BUILD_CM_Cx_R_(tcid_3_priority, 0x58)
-BUILD_CM_Cx_R_(tcid_4_priority, 0x60)
-BUILD_CM_Cx_R_(tcid_5_priority, 0x68)
-BUILD_CM_Cx_R_(tcid_6_priority, 0x70)
-BUILD_CM_Cx_R_(tcid_7_priority, 0x78)
-BUILD_CM_Cx_R_(tcid_8_priority, 0x80)
-
-/* GCR_CONFIG register fields */
-#define CM_GCR_CONFIG_NUMIOCU_SHF 8
-#define CM_GCR_CONFIG_NUMIOCU_MSK (_ULCAST_(0xf) << 8)
-#define CM_GCR_CONFIG_PCORES_SHF 0
-#define CM_GCR_CONFIG_PCORES_MSK (_ULCAST_(0xff) << 0)
-
-/* GCR_BASE register fields */
-#define CM_GCR_BASE_GCRBASE_SHF 15
-#define CM_GCR_BASE_GCRBASE_MSK (_ULCAST_(0x1ffff) << 15)
-#define CM_GCR_BASE_CMDEFTGT_SHF 0
-#define CM_GCR_BASE_CMDEFTGT_MSK (_ULCAST_(0x3) << 0)
+#define GCR_ACCESSOR_RO(sz, off, name) \
+ CPS_ACCESSOR_RO(gcr, sz, MIPS_CM_GCB_OFS + off, name) \
+ CPS_ACCESSOR_RO(gcr, sz, MIPS_CM_COCB_OFS + off, redir_##name)
+
+#define GCR_ACCESSOR_RW(sz, off, name) \
+ CPS_ACCESSOR_RW(gcr, sz, MIPS_CM_GCB_OFS + off, name) \
+ CPS_ACCESSOR_RW(gcr, sz, MIPS_CM_COCB_OFS + off, redir_##name)
+
+#define GCR_CX_ACCESSOR_RO(sz, off, name) \
+ CPS_ACCESSOR_RO(gcr, sz, MIPS_CM_CLCB_OFS + off, cl_##name) \
+ CPS_ACCESSOR_RO(gcr, sz, MIPS_CM_COCB_OFS + off, co_##name)
+
+#define GCR_CX_ACCESSOR_RW(sz, off, name) \
+ CPS_ACCESSOR_RW(gcr, sz, MIPS_CM_CLCB_OFS + off, cl_##name) \
+ CPS_ACCESSOR_RW(gcr, sz, MIPS_CM_COCB_OFS + off, co_##name)
+
+/* GCR_CONFIG - Information about the system */
+GCR_ACCESSOR_RO(64, 0x000, config)
+#define CM_GCR_CONFIG_CLUSTER_COH_CAPABLE BIT_ULL(43)
+#define CM_GCR_CONFIG_CLUSTER_ID GENMASK_ULL(39, 32)
+#define CM_GCR_CONFIG_NUM_CLUSTERS GENMASK(29, 23)
+#define CM_GCR_CONFIG_NUMIOCU GENMASK(15, 8)
+#define CM_GCR_CONFIG_PCORES GENMASK(7, 0)
+
+/* GCR_BASE - Base address of the Global Configuration Registers (GCRs) */
+GCR_ACCESSOR_RW(64, 0x008, base)
+#define CM_GCR_BASE_GCRBASE GENMASK_ULL(47, 15)
+#define CM_GCR_BASE_CMDEFTGT GENMASK(1, 0)
#define CM_GCR_BASE_CMDEFTGT_DISABLED 0
#define CM_GCR_BASE_CMDEFTGT_MEM 1
#define CM_GCR_BASE_CMDEFTGT_IOCU0 2
#define CM_GCR_BASE_CMDEFTGT_IOCU1 3
-/* GCR_RESET_EXT_BASE register fields */
-#define CM_GCR_RESET_EXT_BASE_EVARESET BIT(31)
-#define CM_GCR_RESET_EXT_BASE_UEB BIT(30)
-
-/* GCR_ACCESS register fields */
-#define CM_GCR_ACCESS_ACCESSEN_SHF 0
-#define CM_GCR_ACCESS_ACCESSEN_MSK (_ULCAST_(0xff) << 0)
+/* GCR_ACCESS - Controls core/IOCU access to GCRs */
+GCR_ACCESSOR_RW(32, 0x020, access)
+#define CM_GCR_ACCESS_ACCESSEN GENMASK(7, 0)
-/* GCR_REV register fields */
-#define CM_GCR_REV_MAJOR_SHF 8
-#define CM_GCR_REV_MAJOR_MSK (_ULCAST_(0xff) << 8)
-#define CM_GCR_REV_MINOR_SHF 0
-#define CM_GCR_REV_MINOR_MSK (_ULCAST_(0xff) << 0)
+/* GCR_REV - Indicates the Coherence Manager revision */
+GCR_ACCESSOR_RO(32, 0x030, rev)
+#define CM_GCR_REV_MAJOR GENMASK(15, 8)
+#define CM_GCR_REV_MINOR GENMASK(7, 0)
#define CM_ENCODE_REV(major, minor) \
- (((major) << CM_GCR_REV_MAJOR_SHF) | \
- ((minor) << CM_GCR_REV_MINOR_SHF))
+ (((major) << __ffs(CM_GCR_REV_MAJOR)) | \
+ ((minor) << __ffs(CM_GCR_REV_MINOR)))
#define CM_REV_CM2 CM_ENCODE_REV(6, 0)
#define CM_REV_CM2_5 CM_ENCODE_REV(7, 0)
#define CM_REV_CM3 CM_ENCODE_REV(8, 0)
-
-/* GCR_ERR_CONTROL register fields */
-#define CM_GCR_ERR_CONTROL_L2_ECC_EN_SHF 1
-#define CM_GCR_ERR_CONTROL_L2_ECC_EN_MSK (_ULCAST_(0x1) << 1)
-#define CM_GCR_ERR_CONTROL_L2_ECC_SUPPORT_SHF 0
-#define CM_GCR_ERR_CONTROL_L2_ECC_SUPPORT_MSK (_ULCAST_(0x1) << 0)
-
-/* GCR_ERROR_CAUSE register fields */
-#define CM_GCR_ERROR_CAUSE_ERRTYPE_SHF 27
-#define CM_GCR_ERROR_CAUSE_ERRTYPE_MSK (_ULCAST_(0x1f) << 27)
-#define CM3_GCR_ERROR_CAUSE_ERRTYPE_SHF 58
-#define CM3_GCR_ERROR_CAUSE_ERRTYPE_MSK GENMASK_ULL(63, 58)
-#define CM_GCR_ERROR_CAUSE_ERRINFO_SHF 0
-#define CM_GCR_ERROR_CAUSE_ERRINGO_MSK (_ULCAST_(0x7ffffff) << 0)
-
-/* GCR_ERROR_MULT register fields */
-#define CM_GCR_ERROR_MULT_ERR2ND_SHF 0
-#define CM_GCR_ERROR_MULT_ERR2ND_MSK (_ULCAST_(0x1f) << 0)
-
-/* GCR_L2_ONLY_SYNC_BASE register fields */
-#define CM_GCR_L2_ONLY_SYNC_BASE_SYNCBASE_SHF 12
-#define CM_GCR_L2_ONLY_SYNC_BASE_SYNCBASE_MSK (_ULCAST_(0xfffff) << 12)
-#define CM_GCR_L2_ONLY_SYNC_BASE_SYNCEN_SHF 0
-#define CM_GCR_L2_ONLY_SYNC_BASE_SYNCEN_MSK (_ULCAST_(0x1) << 0)
-
-/* GCR_GIC_BASE register fields */
-#define CM_GCR_GIC_BASE_GICBASE_SHF 17
-#define CM_GCR_GIC_BASE_GICBASE_MSK (_ULCAST_(0x7fff) << 17)
-#define CM_GCR_GIC_BASE_GICEN_SHF 0
-#define CM_GCR_GIC_BASE_GICEN_MSK (_ULCAST_(0x1) << 0)
-
-/* GCR_CPC_BASE register fields */
-#define CM_GCR_CPC_BASE_CPCBASE_SHF 15
-#define CM_GCR_CPC_BASE_CPCBASE_MSK (_ULCAST_(0x1ffff) << 15)
-#define CM_GCR_CPC_BASE_CPCEN_SHF 0
-#define CM_GCR_CPC_BASE_CPCEN_MSK (_ULCAST_(0x1) << 0)
-
-/* GCR_GIC_STATUS register fields */
-#define CM_GCR_GIC_STATUS_GICEX_SHF 0
-#define CM_GCR_GIC_STATUS_GICEX_MSK (_ULCAST_(0x1) << 0)
-
-/* GCR_REGn_BASE register fields */
-#define CM_GCR_REGn_BASE_BASEADDR_SHF 16
-#define CM_GCR_REGn_BASE_BASEADDR_MSK (_ULCAST_(0xffff) << 16)
-
-/* GCR_REGn_MASK register fields */
-#define CM_GCR_REGn_MASK_ADDRMASK_SHF 16
-#define CM_GCR_REGn_MASK_ADDRMASK_MSK (_ULCAST_(0xffff) << 16)
-#define CM_GCR_REGn_MASK_CCAOVR_SHF 5
-#define CM_GCR_REGn_MASK_CCAOVR_MSK (_ULCAST_(0x3) << 5)
-#define CM_GCR_REGn_MASK_CCAOVREN_SHF 4
-#define CM_GCR_REGn_MASK_CCAOVREN_MSK (_ULCAST_(0x1) << 4)
-#define CM_GCR_REGn_MASK_DROPL2_SHF 2
-#define CM_GCR_REGn_MASK_DROPL2_MSK (_ULCAST_(0x1) << 2)
-#define CM_GCR_REGn_MASK_CMTGT_SHF 0
-#define CM_GCR_REGn_MASK_CMTGT_MSK (_ULCAST_(0x3) << 0)
-#define CM_GCR_REGn_MASK_CMTGT_DISABLED (_ULCAST_(0x0) << 0)
-#define CM_GCR_REGn_MASK_CMTGT_MEM (_ULCAST_(0x1) << 0)
-#define CM_GCR_REGn_MASK_CMTGT_IOCU0 (_ULCAST_(0x2) << 0)
-#define CM_GCR_REGn_MASK_CMTGT_IOCU1 (_ULCAST_(0x3) << 0)
-
-/* GCR_GIC_STATUS register fields */
-#define CM_GCR_GIC_STATUS_EX_SHF 0
-#define CM_GCR_GIC_STATUS_EX_MSK (_ULCAST_(0x1) << 0)
-
-/* GCR_CPC_STATUS register fields */
-#define CM_GCR_CPC_STATUS_EX_SHF 0
-#define CM_GCR_CPC_STATUS_EX_MSK (_ULCAST_(0x1) << 0)
-
-/* GCR_L2_CONFIG register fields */
-#define CM_GCR_L2_CONFIG_BYPASS_SHF 20
-#define CM_GCR_L2_CONFIG_BYPASS_MSK (_ULCAST_(0x1) << 20)
-#define CM_GCR_L2_CONFIG_SET_SIZE_SHF 12
-#define CM_GCR_L2_CONFIG_SET_SIZE_MSK (_ULCAST_(0xf) << 12)
-#define CM_GCR_L2_CONFIG_LINE_SIZE_SHF 8
-#define CM_GCR_L2_CONFIG_LINE_SIZE_MSK (_ULCAST_(0xf) << 8)
-#define CM_GCR_L2_CONFIG_ASSOC_SHF 0
-#define CM_GCR_L2_CONFIG_ASSOC_MSK (_ULCAST_(0xff) << 0)
-
-/* GCR_SYS_CONFIG2 register fields */
-#define CM_GCR_SYS_CONFIG2_MAXVPW_SHF 0
-#define CM_GCR_SYS_CONFIG2_MAXVPW_MSK (_ULCAST_(0xf) << 0)
-
-/* GCR_L2_PFT_CONTROL register fields */
-#define CM_GCR_L2_PFT_CONTROL_PAGEMASK_SHF 12
-#define CM_GCR_L2_PFT_CONTROL_PAGEMASK_MSK (_ULCAST_(0xfffff) << 12)
-#define CM_GCR_L2_PFT_CONTROL_PFTEN_SHF 8
-#define CM_GCR_L2_PFT_CONTROL_PFTEN_MSK (_ULCAST_(0x1) << 8)
-#define CM_GCR_L2_PFT_CONTROL_NPFT_SHF 0
-#define CM_GCR_L2_PFT_CONTROL_NPFT_MSK (_ULCAST_(0xff) << 0)
-
-/* GCR_L2_PFT_CONTROL_B register fields */
-#define CM_GCR_L2_PFT_CONTROL_B_CEN_SHF 8
-#define CM_GCR_L2_PFT_CONTROL_B_CEN_MSK (_ULCAST_(0x1) << 8)
-#define CM_GCR_L2_PFT_CONTROL_B_PORTID_SHF 0
-#define CM_GCR_L2_PFT_CONTROL_B_PORTID_MSK (_ULCAST_(0xff) << 0)
-
-/* GCR_Cx_COHERENCE register fields */
-#define CM_GCR_Cx_COHERENCE_COHDOMAINEN_SHF 0
-#define CM_GCR_Cx_COHERENCE_COHDOMAINEN_MSK (_ULCAST_(0xff) << 0)
-#define CM3_GCR_Cx_COHERENCE_COHEN_MSK (_ULCAST_(0x1) << 0)
-
-/* GCR_Cx_CONFIG register fields */
-#define CM_GCR_Cx_CONFIG_IOCUTYPE_SHF 10
-#define CM_GCR_Cx_CONFIG_IOCUTYPE_MSK (_ULCAST_(0x3) << 10)
-#define CM_GCR_Cx_CONFIG_PVPE_SHF 0
-#define CM_GCR_Cx_CONFIG_PVPE_MSK (_ULCAST_(0x3ff) << 0)
-
-/* GCR_Cx_OTHER register fields */
-#define CM_GCR_Cx_OTHER_CORENUM_SHF 16
-#define CM_GCR_Cx_OTHER_CORENUM_MSK (_ULCAST_(0xffff) << 16)
-#define CM3_GCR_Cx_OTHER_CORE_SHF 8
-#define CM3_GCR_Cx_OTHER_CORE_MSK (_ULCAST_(0x3f) << 8)
-#define CM3_GCR_Cx_OTHER_VP_SHF 0
-#define CM3_GCR_Cx_OTHER_VP_MSK (_ULCAST_(0x7) << 0)
-
-/* GCR_Cx_RESET_BASE register fields */
-#define CM_GCR_Cx_RESET_BASE_BEVEXCBASE_SHF 12
-#define CM_GCR_Cx_RESET_BASE_BEVEXCBASE_MSK (_ULCAST_(0xfffff) << 12)
-
-/* GCR_Cx_RESET_EXT_BASE register fields */
-#define CM_GCR_Cx_RESET_EXT_BASE_EVARESET_SHF 31
-#define CM_GCR_Cx_RESET_EXT_BASE_EVARESET_MSK (_ULCAST_(0x1) << 31)
-#define CM_GCR_Cx_RESET_EXT_BASE_UEB_SHF 30
-#define CM_GCR_Cx_RESET_EXT_BASE_UEB_MSK (_ULCAST_(0x1) << 30)
-#define CM_GCR_Cx_RESET_EXT_BASE_BEVEXCMASK_SHF 20
-#define CM_GCR_Cx_RESET_EXT_BASE_BEVEXCMASK_MSK (_ULCAST_(0xff) << 20)
-#define CM_GCR_Cx_RESET_EXT_BASE_BEVEXCPA_SHF 1
-#define CM_GCR_Cx_RESET_EXT_BASE_BEVEXCPA_MSK (_ULCAST_(0x7f) << 1)
-#define CM_GCR_Cx_RESET_EXT_BASE_PRESENT_SHF 0
-#define CM_GCR_Cx_RESET_EXT_BASE_PRESENT_MSK (_ULCAST_(0x1) << 0)
-
-/**
- * mips_cm_numcores - return the number of cores present in the system
- *
- * Returns the value of the PCORES field of the GCR_CONFIG register plus 1, or
- * zero if no Coherence Manager is present.
- */
-static inline unsigned mips_cm_numcores(void)
-{
- if (!mips_cm_present())
- return 0;
-
- return ((read_gcr_config() & CM_GCR_CONFIG_PCORES_MSK)
- >> CM_GCR_CONFIG_PCORES_SHF) + 1;
-}
-
-/**
- * mips_cm_numiocu - return the number of IOCUs present in the system
- *
- * Returns the value of the NUMIOCU field of the GCR_CONFIG register, or zero
- * if no Coherence Manager is present.
- */
-static inline unsigned mips_cm_numiocu(void)
-{
- if (!mips_cm_present())
- return 0;
-
- return (read_gcr_config() & CM_GCR_CONFIG_NUMIOCU_MSK)
- >> CM_GCR_CONFIG_NUMIOCU_SHF;
-}
+#define CM_REV_CM3_5 CM_ENCODE_REV(9, 0)
+
+/* GCR_ERR_CONTROL - Control error checking logic */
+GCR_ACCESSOR_RW(32, 0x038, err_control)
+#define CM_GCR_ERR_CONTROL_L2_ECC_EN BIT(1)
+#define CM_GCR_ERR_CONTROL_L2_ECC_SUPPORT BIT(0)
+
+/* GCR_ERR_MASK - Control which errors are reported as interrupts */
+GCR_ACCESSOR_RW(64, 0x040, error_mask)
+
+/* GCR_ERR_CAUSE - Indicates the type of error that occurred */
+GCR_ACCESSOR_RW(64, 0x048, error_cause)
+#define CM_GCR_ERROR_CAUSE_ERRTYPE GENMASK(31, 27)
+#define CM3_GCR_ERROR_CAUSE_ERRTYPE GENMASK_ULL(63, 58)
+#define CM_GCR_ERROR_CAUSE_ERRINFO GENMASK(26, 0)
+
+/* GCR_ERR_ADDR - Indicates the address associated with an error */
+GCR_ACCESSOR_RW(64, 0x050, error_addr)
+
+/* GCR_ERR_MULT - Indicates when multiple errors have occurred */
+GCR_ACCESSOR_RW(64, 0x058, error_mult)
+#define CM_GCR_ERROR_MULT_ERR2ND GENMASK(4, 0)
+
+/* GCR_L2_ONLY_SYNC_BASE - Base address of the L2 cache-only sync region */
+GCR_ACCESSOR_RW(64, 0x070, l2_only_sync_base)
+#define CM_GCR_L2_ONLY_SYNC_BASE_SYNCBASE GENMASK(31, 12)
+#define CM_GCR_L2_ONLY_SYNC_BASE_SYNCEN BIT(0)
+
+/* GCR_GIC_BASE - Base address of the Global Interrupt Controller (GIC) */
+GCR_ACCESSOR_RW(64, 0x080, gic_base)
+#define CM_GCR_GIC_BASE_GICBASE GENMASK(31, 17)
+#define CM_GCR_GIC_BASE_GICEN BIT(0)
+
+/* GCR_CPC_BASE - Base address of the Cluster Power Controller (CPC) */
+GCR_ACCESSOR_RW(64, 0x088, cpc_base)
+#define CM_GCR_CPC_BASE_CPCBASE GENMASK(31, 15)
+#define CM_GCR_CPC_BASE_CPCEN BIT(0)
+
+/* GCR_REGn_BASE - Base addresses of CM address regions */
+GCR_ACCESSOR_RW(64, 0x090, reg0_base)
+GCR_ACCESSOR_RW(64, 0x0a0, reg1_base)
+GCR_ACCESSOR_RW(64, 0x0b0, reg2_base)
+GCR_ACCESSOR_RW(64, 0x0c0, reg3_base)
+#define CM_GCR_REGn_BASE_BASEADDR GENMASK(31, 16)
+
+/* GCR_REGn_MASK - Size & destination of CM address regions */
+GCR_ACCESSOR_RW(64, 0x098, reg0_mask)
+GCR_ACCESSOR_RW(64, 0x0a8, reg1_mask)
+GCR_ACCESSOR_RW(64, 0x0b8, reg2_mask)
+GCR_ACCESSOR_RW(64, 0x0c8, reg3_mask)
+#define CM_GCR_REGn_MASK_ADDRMASK GENMASK(31, 16)
+#define CM_GCR_REGn_MASK_CCAOVR GENMASK(7, 5)
+#define CM_GCR_REGn_MASK_CCAOVREN BIT(4)
+#define CM_GCR_REGn_MASK_DROPL2 BIT(2)
+#define CM_GCR_REGn_MASK_CMTGT GENMASK(1, 0)
+#define CM_GCR_REGn_MASK_CMTGT_DISABLED 0x0
+#define CM_GCR_REGn_MASK_CMTGT_MEM 0x1
+#define CM_GCR_REGn_MASK_CMTGT_IOCU0 0x2
+#define CM_GCR_REGn_MASK_CMTGT_IOCU1 0x3
+
+/* GCR_GIC_STATUS - Indicates presence of a Global Interrupt Controller (GIC) */
+GCR_ACCESSOR_RO(32, 0x0d0, gic_status)
+#define CM_GCR_GIC_STATUS_EX BIT(0)
+
+/* GCR_CPC_STATUS - Indicates presence of a Cluster Power Controller (CPC) */
+GCR_ACCESSOR_RO(32, 0x0f0, cpc_status)
+#define CM_GCR_CPC_STATUS_EX BIT(0)
+
+/* GCR_L2_CONFIG - Indicates L2 cache configuration when Config5.L2C=1 */
+GCR_ACCESSOR_RW(32, 0x130, l2_config)
+#define CM_GCR_L2_CONFIG_BYPASS BIT(20)
+#define CM_GCR_L2_CONFIG_SET_SIZE GENMASK(15, 12)
+#define CM_GCR_L2_CONFIG_LINE_SIZE GENMASK(11, 8)
+#define CM_GCR_L2_CONFIG_ASSOC GENMASK(7, 0)
+
+/* GCR_SYS_CONFIG2 - Further information about the system */
+GCR_ACCESSOR_RO(32, 0x150, sys_config2)
+#define CM_GCR_SYS_CONFIG2_MAXVPW GENMASK(3, 0)
+
+/* GCR_L2_PFT_CONTROL - Controls hardware L2 prefetching */
+GCR_ACCESSOR_RW(32, 0x300, l2_pft_control)
+#define CM_GCR_L2_PFT_CONTROL_PAGEMASK GENMASK(31, 12)
+#define CM_GCR_L2_PFT_CONTROL_PFTEN BIT(8)
+#define CM_GCR_L2_PFT_CONTROL_NPFT GENMASK(7, 0)
+
+/* GCR_L2_PFT_CONTROL_B - Controls hardware L2 prefetching */
+GCR_ACCESSOR_RW(32, 0x308, l2_pft_control_b)
+#define CM_GCR_L2_PFT_CONTROL_B_CEN BIT(8)
+#define CM_GCR_L2_PFT_CONTROL_B_PORTID GENMASK(7, 0)
+
+/* GCR_L2SM_COP - L2 cache op state machine control */
+GCR_ACCESSOR_RW(32, 0x620, l2sm_cop)
+#define CM_GCR_L2SM_COP_PRESENT BIT(31)
+#define CM_GCR_L2SM_COP_RESULT GENMASK(8, 6)
+#define CM_GCR_L2SM_COP_RESULT_DONTCARE 0
+#define CM_GCR_L2SM_COP_RESULT_DONE_OK 1
+#define CM_GCR_L2SM_COP_RESULT_DONE_ERROR 2
+#define CM_GCR_L2SM_COP_RESULT_ABORT_OK 3
+#define CM_GCR_L2SM_COP_RESULT_ABORT_ERROR 4
+#define CM_GCR_L2SM_COP_RUNNING BIT(5)
+#define CM_GCR_L2SM_COP_TYPE GENMASK(4, 2)
+#define CM_GCR_L2SM_COP_TYPE_IDX_WBINV 0
+#define CM_GCR_L2SM_COP_TYPE_IDX_STORETAG 1
+#define CM_GCR_L2SM_COP_TYPE_IDX_STORETAGDATA 2
+#define CM_GCR_L2SM_COP_TYPE_HIT_INV 4
+#define CM_GCR_L2SM_COP_TYPE_HIT_WBINV 5
+#define CM_GCR_L2SM_COP_TYPE_HIT_WB 6
+#define CM_GCR_L2SM_COP_TYPE_FETCHLOCK 7
+#define CM_GCR_L2SM_COP_CMD GENMASK(1, 0)
+#define CM_GCR_L2SM_COP_CMD_START 1 /* only when idle */
+#define CM_GCR_L2SM_COP_CMD_ABORT 3 /* only when running */
+
+/* GCR_L2SM_TAG_ADDR_COP - L2 cache op state machine address control */
+GCR_ACCESSOR_RW(64, 0x628, l2sm_tag_addr_cop)
+#define CM_GCR_L2SM_TAG_ADDR_COP_NUM_LINES GENMASK_ULL(63, 48)
+#define CM_GCR_L2SM_TAG_ADDR_COP_START_TAG GENMASK_ULL(47, 6)
+
+/* GCR_BEV_BASE - Controls the location of the BEV for powered up cores */
+GCR_ACCESSOR_RW(64, 0x680, bev_base)
+
+/* GCR_Cx_RESET_RELEASE - Controls core reset for CM 1.x */
+GCR_CX_ACCESSOR_RW(32, 0x000, reset_release)
+
+/* GCR_Cx_COHERENCE - Controls core coherence */
+GCR_CX_ACCESSOR_RW(32, 0x008, coherence)
+#define CM_GCR_Cx_COHERENCE_COHDOMAINEN GENMASK(7, 0)
+#define CM3_GCR_Cx_COHERENCE_COHEN BIT(0)
+
+/* GCR_Cx_CONFIG - Information about a core's configuration */
+GCR_CX_ACCESSOR_RO(32, 0x010, config)
+#define CM_GCR_Cx_CONFIG_IOCUTYPE GENMASK(11, 10)
+#define CM_GCR_Cx_CONFIG_PVPE GENMASK(9, 0)
+
+/* GCR_Cx_OTHER - Configure the core-other/redirect GCR block */
+GCR_CX_ACCESSOR_RW(32, 0x018, other)
+#define CM_GCR_Cx_OTHER_CORENUM GENMASK(31, 16) /* CM < 3 */
+#define CM_GCR_Cx_OTHER_CLUSTER_EN BIT(31) /* CM >= 3.5 */
+#define CM_GCR_Cx_OTHER_GIC_EN BIT(30) /* CM >= 3.5 */
+#define CM_GCR_Cx_OTHER_BLOCK GENMASK(25, 24) /* CM >= 3.5 */
+#define CM_GCR_Cx_OTHER_BLOCK_LOCAL 0
+#define CM_GCR_Cx_OTHER_BLOCK_GLOBAL 1
+#define CM_GCR_Cx_OTHER_BLOCK_USER 2
+#define CM_GCR_Cx_OTHER_BLOCK_GLOBAL_HIGH 3
+#define CM_GCR_Cx_OTHER_CLUSTER GENMASK(21, 16) /* CM >= 3.5 */
+#define CM3_GCR_Cx_OTHER_CORE GENMASK(13, 8) /* CM >= 3 */
+#define CM_GCR_Cx_OTHER_CORE_CM 32
+#define CM3_GCR_Cx_OTHER_VP GENMASK(2, 0) /* CM >= 3 */
+
+/* GCR_Cx_RESET_BASE - Configure where powered up cores will fetch from */
+GCR_CX_ACCESSOR_RW(32, 0x020, reset_base)
+#define CM_GCR_Cx_RESET_BASE_BEVEXCBASE GENMASK(31, 12)
+
+/* GCR_Cx_ID - Identify the current core */
+GCR_CX_ACCESSOR_RO(32, 0x028, id)
+#define CM_GCR_Cx_ID_CLUSTER GENMASK(15, 8)
+#define CM_GCR_Cx_ID_CORE GENMASK(7, 0)
+
+/* GCR_Cx_RESET_EXT_BASE - Configure behaviour when cores reset or power up */
+GCR_CX_ACCESSOR_RW(32, 0x030, reset_ext_base)
+#define CM_GCR_Cx_RESET_EXT_BASE_EVARESET BIT(31)
+#define CM_GCR_Cx_RESET_EXT_BASE_UEB BIT(30)
+#define CM_GCR_Cx_RESET_EXT_BASE_BEVEXCMASK GENMASK(27, 20)
+#define CM_GCR_Cx_RESET_EXT_BASE_BEVEXCPA GENMASK(7, 1)
+#define CM_GCR_Cx_RESET_EXT_BASE_PRESENT BIT(0)
/**
* mips_cm_l2sync - perform an L2-only sync operation
@@ -469,7 +369,7 @@ static inline unsigned int mips_cm_max_vp_width(void)
uint32_t cfg;
if (mips_cm_revision() >= CM_REV_CM3)
- return read_gcr_sys_config2() & CM_GCR_SYS_CONFIG2_MAXVPW_MSK;
+ return read_gcr_sys_config2() & CM_GCR_SYS_CONFIG2_MAXVPW;
if (mips_cm_present()) {
/*
@@ -477,8 +377,8 @@ static inline unsigned int mips_cm_max_vp_width(void)
* number of VP(E)s, and if that ever changes then this will
* need revisiting.
*/
- cfg = read_gcr_cl_config() & CM_GCR_Cx_CONFIG_PVPE_MSK;
- return (cfg >> CM_GCR_Cx_CONFIG_PVPE_SHF) + 1;
+ cfg = read_gcr_cl_config() & CM_GCR_Cx_CONFIG_PVPE;
+ return (cfg >> __ffs(CM_GCR_Cx_CONFIG_PVPE)) + 1;
}
if (IS_ENABLED(CONFIG_SMP))
@@ -499,7 +399,7 @@ static inline unsigned int mips_cm_max_vp_width(void)
*/
static inline unsigned int mips_cm_vp_id(unsigned int cpu)
{
- unsigned int core = cpu_data[cpu].core;
+ unsigned int core = cpu_core(&cpu_data[cpu]);
unsigned int vp = cpu_vpe_id(&cpu_data[cpu]);
return (core * mips_cm_max_vp_width()) + vp;
@@ -508,29 +408,56 @@ static inline unsigned int mips_cm_vp_id(unsigned int cpu)
#ifdef CONFIG_MIPS_CM
/**
- * mips_cm_lock_other - lock access to another core
+ * mips_cm_lock_other - lock access to redirect/other region
+ * @cluster: the other cluster to be accessed
* @core: the other core to be accessed
* @vp: the VP within the other core to be accessed
+ * @block: the register block to be accessed
*
- * Call before operating upon a core via the 'other' register region in
- * order to prevent the region being moved during access. Must be followed
- * by a call to mips_cm_unlock_other.
+ * Configure the redirect/other region for the local core/VP (depending upon
+ * the CM revision) to target the specified @cluster, @core, @vp & register
+ * @block. Must be called before using the redirect/other region, and followed
+ * by a call to mips_cm_unlock_other() when access to the redirect/other region
+ * is complete.
+ *
+ * This function acquires a spinlock such that code between it &
+ * mips_cm_unlock_other() calls cannot be pre-empted by anything which may
+ * reconfigure the redirect/other region, and cannot be interfered with by
+ * another VP in the core. As such calls to this function should not be nested.
*/
-extern void mips_cm_lock_other(unsigned int core, unsigned int vp);
+extern void mips_cm_lock_other(unsigned int cluster, unsigned int core,
+ unsigned int vp, unsigned int block);
/**
- * mips_cm_unlock_other - unlock access to another core
+ * mips_cm_unlock_other - unlock access to redirect/other region
*
- * Call after operating upon another core via the 'other' register region.
- * Must be called after mips_cm_lock_other.
+ * Must be called after mips_cm_lock_other() once all required access to the
+ * redirect/other region has been completed.
*/
extern void mips_cm_unlock_other(void);
#else /* !CONFIG_MIPS_CM */
-static inline void mips_cm_lock_other(unsigned int core, unsigned int vp) { }
+static inline void mips_cm_lock_other(unsigned int cluster, unsigned int core,
+ unsigned int vp, unsigned int block) { }
static inline void mips_cm_unlock_other(void) { }
#endif /* !CONFIG_MIPS_CM */
+/**
+ * mips_cm_lock_other_cpu - lock access to redirect/other region
+ * @cpu: the other CPU whose register we want to access
+ *
+ * Configure the redirect/other region for the local core/VP (depending upon
+ * the CM revision) to target the specified @cpu & register @block. This is
+ * equivalent to calling mips_cm_lock_other() but accepts a Linux CPU number
+ * for convenience.
+ */
+static inline void mips_cm_lock_other_cpu(unsigned int cpu, unsigned int block)
+{
+ struct cpuinfo_mips *d = &cpu_data[cpu];
+
+ mips_cm_lock_other(cpu_cluster(d), cpu_core(d), cpu_vpe_id(d), block);
+}
+
#endif /* __MIPS_ASM_MIPS_CM_H__ */
diff --git a/arch/mips/include/asm/mips-cpc.h b/arch/mips/include/asm/mips-cpc.h
index 8c519f9827a3..f885051a8378 100644
--- a/arch/mips/include/asm/mips-cpc.h
+++ b/arch/mips/include/asm/mips-cpc.h
@@ -8,11 +8,15 @@
* option) any later version.
*/
+#ifndef __MIPS_ASM_MIPS_CPS_H__
+# error Please include asm/mips-cps.h rather than asm/mips-cpc.h
+#endif
+
#ifndef __MIPS_ASM_MIPS_CPC_H__
#define __MIPS_ASM_MIPS_CPC_H__
-#include <linux/io.h>
-#include <linux/types.h>
+#include <linux/bitops.h>
+#include <linux/errno.h>
/* The base address of the CPC registers */
extern void __iomem *mips_cpc_base;
@@ -61,89 +65,92 @@ static inline bool mips_cpc_present(void)
#define MIPS_CPC_CLCB_OFS 0x2000
#define MIPS_CPC_COCB_OFS 0x4000
-/* Macros to ease the creation of register access functions */
-#define BUILD_CPC_R_(name, off) \
-static inline u32 *addr_cpc_##name(void) \
-{ \
- return (u32 *)(mips_cpc_base + (off)); \
-} \
- \
-static inline u32 read_cpc_##name(void) \
-{ \
- return __raw_readl(mips_cpc_base + (off)); \
-}
-
-#define BUILD_CPC__W(name, off) \
-static inline void write_cpc_##name(u32 value) \
-{ \
- __raw_writel(value, mips_cpc_base + (off)); \
-}
-
-#define BUILD_CPC_RW(name, off) \
- BUILD_CPC_R_(name, off) \
- BUILD_CPC__W(name, off)
-
-#define BUILD_CPC_Cx_R_(name, off) \
- BUILD_CPC_R_(cl_##name, MIPS_CPC_CLCB_OFS + (off)) \
- BUILD_CPC_R_(co_##name, MIPS_CPC_COCB_OFS + (off))
-
-#define BUILD_CPC_Cx__W(name, off) \
- BUILD_CPC__W(cl_##name, MIPS_CPC_CLCB_OFS + (off)) \
- BUILD_CPC__W(co_##name, MIPS_CPC_COCB_OFS + (off))
-
-#define BUILD_CPC_Cx_RW(name, off) \
- BUILD_CPC_Cx_R_(name, off) \
- BUILD_CPC_Cx__W(name, off)
-
-/* GCB register accessor functions */
-BUILD_CPC_RW(access, MIPS_CPC_GCB_OFS + 0x00)
-BUILD_CPC_RW(seqdel, MIPS_CPC_GCB_OFS + 0x08)
-BUILD_CPC_RW(rail, MIPS_CPC_GCB_OFS + 0x10)
-BUILD_CPC_RW(resetlen, MIPS_CPC_GCB_OFS + 0x18)
-BUILD_CPC_R_(revision, MIPS_CPC_GCB_OFS + 0x20)
-
-/* Core Local & Core Other accessor functions */
-BUILD_CPC_Cx_RW(cmd, 0x00)
-BUILD_CPC_Cx_RW(stat_conf, 0x08)
-BUILD_CPC_Cx_RW(other, 0x10)
-BUILD_CPC_Cx_RW(vp_stop, 0x20)
-BUILD_CPC_Cx_RW(vp_run, 0x28)
-BUILD_CPC_Cx_RW(vp_running, 0x30)
-
-/* CPC_Cx_CMD register fields */
-#define CPC_Cx_CMD_SHF 0
-#define CPC_Cx_CMD_MSK (_ULCAST_(0xf) << 0)
-#define CPC_Cx_CMD_CLOCKOFF (_ULCAST_(0x1) << 0)
-#define CPC_Cx_CMD_PWRDOWN (_ULCAST_(0x2) << 0)
-#define CPC_Cx_CMD_PWRUP (_ULCAST_(0x3) << 0)
-#define CPC_Cx_CMD_RESET (_ULCAST_(0x4) << 0)
-
-/* CPC_Cx_STAT_CONF register fields */
-#define CPC_Cx_STAT_CONF_PWRUPE_SHF 23
-#define CPC_Cx_STAT_CONF_PWRUPE_MSK (_ULCAST_(0x1) << 23)
-#define CPC_Cx_STAT_CONF_SEQSTATE_SHF 19
-#define CPC_Cx_STAT_CONF_SEQSTATE_MSK (_ULCAST_(0xf) << 19)
-#define CPC_Cx_STAT_CONF_SEQSTATE_D0 (_ULCAST_(0x0) << 19)
-#define CPC_Cx_STAT_CONF_SEQSTATE_U0 (_ULCAST_(0x1) << 19)
-#define CPC_Cx_STAT_CONF_SEQSTATE_U1 (_ULCAST_(0x2) << 19)
-#define CPC_Cx_STAT_CONF_SEQSTATE_U2 (_ULCAST_(0x3) << 19)
-#define CPC_Cx_STAT_CONF_SEQSTATE_U3 (_ULCAST_(0x4) << 19)
-#define CPC_Cx_STAT_CONF_SEQSTATE_U4 (_ULCAST_(0x5) << 19)
-#define CPC_Cx_STAT_CONF_SEQSTATE_U5 (_ULCAST_(0x6) << 19)
-#define CPC_Cx_STAT_CONF_SEQSTATE_U6 (_ULCAST_(0x7) << 19)
-#define CPC_Cx_STAT_CONF_SEQSTATE_D1 (_ULCAST_(0x8) << 19)
-#define CPC_Cx_STAT_CONF_SEQSTATE_D3 (_ULCAST_(0x9) << 19)
-#define CPC_Cx_STAT_CONF_SEQSTATE_D2 (_ULCAST_(0xa) << 19)
-#define CPC_Cx_STAT_CONF_CLKGAT_IMPL_SHF 17
-#define CPC_Cx_STAT_CONF_CLKGAT_IMPL_MSK (_ULCAST_(0x1) << 17)
-#define CPC_Cx_STAT_CONF_PWRDN_IMPL_SHF 16
-#define CPC_Cx_STAT_CONF_PWRDN_IMPL_MSK (_ULCAST_(0x1) << 16)
-#define CPC_Cx_STAT_CONF_EJTAG_PROBE_SHF 15
-#define CPC_Cx_STAT_CONF_EJTAG_PROBE_MSK (_ULCAST_(0x1) << 15)
-
-/* CPC_Cx_OTHER register fields */
-#define CPC_Cx_OTHER_CORENUM_SHF 16
-#define CPC_Cx_OTHER_CORENUM_MSK (_ULCAST_(0xff) << 16)
+#define CPC_ACCESSOR_RO(sz, off, name) \
+ CPS_ACCESSOR_RO(cpc, sz, MIPS_CPC_GCB_OFS + off, name) \
+ CPS_ACCESSOR_RO(cpc, sz, MIPS_CPC_COCB_OFS + off, redir_##name)
+
+#define CPC_ACCESSOR_RW(sz, off, name) \
+ CPS_ACCESSOR_RW(cpc, sz, MIPS_CPC_GCB_OFS + off, name) \
+ CPS_ACCESSOR_RW(cpc, sz, MIPS_CPC_COCB_OFS + off, redir_##name)
+
+#define CPC_CX_ACCESSOR_RO(sz, off, name) \
+ CPS_ACCESSOR_RO(cpc, sz, MIPS_CPC_CLCB_OFS + off, cl_##name) \
+ CPS_ACCESSOR_RO(cpc, sz, MIPS_CPC_COCB_OFS + off, co_##name)
+
+#define CPC_CX_ACCESSOR_RW(sz, off, name) \
+ CPS_ACCESSOR_RW(cpc, sz, MIPS_CPC_CLCB_OFS + off, cl_##name) \
+ CPS_ACCESSOR_RW(cpc, sz, MIPS_CPC_COCB_OFS + off, co_##name)
+
+/* CPC_ACCESS - Control core/IOCU access to CPC registers prior to CM 3 */
+CPC_ACCESSOR_RW(32, 0x000, access)
+
+/* CPC_SEQDEL - Configure delays between command sequencer steps */
+CPC_ACCESSOR_RW(32, 0x008, seqdel)
+
+/* CPC_RAIL - Configure the delay from rail power-up to stability */
+CPC_ACCESSOR_RW(32, 0x010, rail)
+
+/* CPC_RESETLEN - Configure the length of reset sequences */
+CPC_ACCESSOR_RW(32, 0x018, resetlen)
+
+/* CPC_REVISION - Indicates the revisison of the CPC */
+CPC_ACCESSOR_RO(32, 0x020, revision)
+
+/* CPC_PWRUP_CTL - Control power to the Coherence Manager (CM) */
+CPC_ACCESSOR_RW(32, 0x030, pwrup_ctl)
+#define CPC_PWRUP_CTL_CM_PWRUP BIT(0)
+
+/* CPC_CONFIG - Mirrors GCR_CONFIG */
+CPC_ACCESSOR_RW(64, 0x138, config)
+
+/* CPC_SYS_CONFIG - Control cluster endianness */
+CPC_ACCESSOR_RW(32, 0x140, sys_config)
+#define CPC_SYS_CONFIG_BE_IMMEDIATE BIT(2)
+#define CPC_SYS_CONFIG_BE_STATUS BIT(1)
+#define CPC_SYS_CONFIG_BE BIT(0)
+
+/* CPC_Cx_CMD - Instruct the CPC to take action on a core */
+CPC_CX_ACCESSOR_RW(32, 0x000, cmd)
+#define CPC_Cx_CMD GENMASK(3, 0)
+#define CPC_Cx_CMD_CLOCKOFF 0x1
+#define CPC_Cx_CMD_PWRDOWN 0x2
+#define CPC_Cx_CMD_PWRUP 0x3
+#define CPC_Cx_CMD_RESET 0x4
+
+/* CPC_Cx_STAT_CONF - Indicates core configuration & state */
+CPC_CX_ACCESSOR_RW(32, 0x008, stat_conf)
+#define CPC_Cx_STAT_CONF_PWRUPE BIT(23)
+#define CPC_Cx_STAT_CONF_SEQSTATE GENMASK(22, 19)
+#define CPC_Cx_STAT_CONF_SEQSTATE_D0 0x0
+#define CPC_Cx_STAT_CONF_SEQSTATE_U0 0x1
+#define CPC_Cx_STAT_CONF_SEQSTATE_U1 0x2
+#define CPC_Cx_STAT_CONF_SEQSTATE_U2 0x3
+#define CPC_Cx_STAT_CONF_SEQSTATE_U3 0x4
+#define CPC_Cx_STAT_CONF_SEQSTATE_U4 0x5
+#define CPC_Cx_STAT_CONF_SEQSTATE_U5 0x6
+#define CPC_Cx_STAT_CONF_SEQSTATE_U6 0x7
+#define CPC_Cx_STAT_CONF_SEQSTATE_D1 0x8
+#define CPC_Cx_STAT_CONF_SEQSTATE_D3 0x9
+#define CPC_Cx_STAT_CONF_SEQSTATE_D2 0xa
+#define CPC_Cx_STAT_CONF_CLKGAT_IMPL BIT(17)
+#define CPC_Cx_STAT_CONF_PWRDN_IMPL BIT(16)
+#define CPC_Cx_STAT_CONF_EJTAG_PROBE BIT(15)
+
+/* CPC_Cx_OTHER - Configure the core-other register block prior to CM 3 */
+CPC_CX_ACCESSOR_RW(32, 0x010, other)
+#define CPC_Cx_OTHER_CORENUM GENMASK(23, 16)
+
+/* CPC_Cx_VP_STOP - Stop Virtual Processors (VPs) within a core from running */
+CPC_CX_ACCESSOR_RW(32, 0x020, vp_stop)
+
+/* CPC_Cx_VP_START - Start Virtual Processors (VPs) within a core running */
+CPC_CX_ACCESSOR_RW(32, 0x028, vp_run)
+
+/* CPC_Cx_VP_RUNNING - Indicate which Virtual Processors (VPs) are running */
+CPC_CX_ACCESSOR_RW(32, 0x030, vp_running)
+
+/* CPC_Cx_CONFIG - Mirrors GCR_Cx_CONFIG */
+CPC_CX_ACCESSOR_RW(32, 0x090, config)
#ifdef CONFIG_MIPS_CPC
diff --git a/arch/mips/include/asm/mips-cps.h b/arch/mips/include/asm/mips-cps.h
new file mode 100644
index 000000000000..bf02b5070a98
--- /dev/null
+++ b/arch/mips/include/asm/mips-cps.h
@@ -0,0 +1,240 @@
+/*
+ * Copyright (C) 2017 Imagination Technologies
+ * Author: Paul Burton <paul.burton@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __MIPS_ASM_MIPS_CPS_H__
+#define __MIPS_ASM_MIPS_CPS_H__
+
+#include <linux/io.h>
+#include <linux/types.h>
+
+extern unsigned long __cps_access_bad_size(void)
+ __compiletime_error("Bad size for CPS accessor");
+
+#define CPS_ACCESSOR_A(unit, off, name) \
+static inline void *addr_##unit##_##name(void) \
+{ \
+ return mips_##unit##_base + (off); \
+}
+
+#define CPS_ACCESSOR_R(unit, sz, name) \
+static inline uint##sz##_t read_##unit##_##name(void) \
+{ \
+ uint64_t val64; \
+ \
+ switch (sz) { \
+ case 32: \
+ return __raw_readl(addr_##unit##_##name()); \
+ \
+ case 64: \
+ if (mips_cm_is64) \
+ return __raw_readq(addr_##unit##_##name()); \
+ \
+ val64 = __raw_readl(addr_##unit##_##name() + 4); \
+ val64 <<= 32; \
+ val64 |= __raw_readl(addr_##unit##_##name()); \
+ return val64; \
+ \
+ default: \
+ return __cps_access_bad_size(); \
+ } \
+}
+
+#define CPS_ACCESSOR_W(unit, sz, name) \
+static inline void write_##unit##_##name(uint##sz##_t val) \
+{ \
+ switch (sz) { \
+ case 32: \
+ __raw_writel(val, addr_##unit##_##name()); \
+ break; \
+ \
+ case 64: \
+ if (mips_cm_is64) { \
+ __raw_writeq(val, addr_##unit##_##name()); \
+ break; \
+ } \
+ \
+ __raw_writel((uint64_t)val >> 32, \
+ addr_##unit##_##name() + 4); \
+ __raw_writel(val, addr_##unit##_##name()); \
+ break; \
+ \
+ default: \
+ __cps_access_bad_size(); \
+ break; \
+ } \
+}
+
+#define CPS_ACCESSOR_M(unit, sz, name) \
+static inline void change_##unit##_##name(uint##sz##_t mask, \
+ uint##sz##_t val) \
+{ \
+ uint##sz##_t reg_val = read_##unit##_##name(); \
+ reg_val &= ~mask; \
+ reg_val |= val; \
+ write_##unit##_##name(reg_val); \
+} \
+ \
+static inline void set_##unit##_##name(uint##sz##_t val) \
+{ \
+ change_##unit##_##name(val, val); \
+} \
+ \
+static inline void clear_##unit##_##name(uint##sz##_t val) \
+{ \
+ change_##unit##_##name(val, 0); \
+}
+
+#define CPS_ACCESSOR_RO(unit, sz, off, name) \
+ CPS_ACCESSOR_A(unit, off, name) \
+ CPS_ACCESSOR_R(unit, sz, name)
+
+#define CPS_ACCESSOR_WO(unit, sz, off, name) \
+ CPS_ACCESSOR_A(unit, off, name) \
+ CPS_ACCESSOR_W(unit, sz, name)
+
+#define CPS_ACCESSOR_RW(unit, sz, off, name) \
+ CPS_ACCESSOR_A(unit, off, name) \
+ CPS_ACCESSOR_R(unit, sz, name) \
+ CPS_ACCESSOR_W(unit, sz, name) \
+ CPS_ACCESSOR_M(unit, sz, name)
+
+#include <asm/mips-cm.h>
+#include <asm/mips-cpc.h>
+#include <asm/mips-gic.h>
+
+/**
+ * mips_cps_numclusters - return the number of clusters present in the system
+ *
+ * Returns the number of clusters in the system.
+ */
+static inline unsigned int mips_cps_numclusters(void)
+{
+ unsigned int num_clusters;
+
+ if (mips_cm_revision() < CM_REV_CM3_5)
+ return 1;
+
+ num_clusters = read_gcr_config() & CM_GCR_CONFIG_NUM_CLUSTERS;
+ num_clusters >>= __ffs(CM_GCR_CONFIG_NUM_CLUSTERS);
+ return num_clusters;
+}
+
+/**
+ * mips_cps_cluster_config - return (GCR|CPC)_CONFIG from a cluster
+ * @cluster: the ID of the cluster whose config we want
+ *
+ * Read the value of GCR_CONFIG (or its CPC_CONFIG mirror) from a @cluster.
+ *
+ * Returns the value of GCR_CONFIG.
+ */
+static inline uint64_t mips_cps_cluster_config(unsigned int cluster)
+{
+ uint64_t config;
+
+ if (mips_cm_revision() < CM_REV_CM3_5) {
+ /*
+ * Prior to CM 3.5 we don't have the notion of multiple
+ * clusters so we can trivially read the GCR_CONFIG register
+ * within this cluster.
+ */
+ WARN_ON(cluster != 0);
+ config = read_gcr_config();
+ } else {
+ /*
+ * From CM 3.5 onwards we read the CPC_CONFIG mirror of
+ * GCR_CONFIG via the redirect region, since the CPC is always
+ * powered up allowing us not to need to power up the CM.
+ */
+ mips_cm_lock_other(cluster, 0, 0, CM_GCR_Cx_OTHER_BLOCK_GLOBAL);
+ config = read_cpc_redir_config();
+ mips_cm_unlock_other();
+ }
+
+ return config;
+}
+
+/**
+ * mips_cps_numcores - return the number of cores present in a cluster
+ * @cluster: the ID of the cluster whose core count we want
+ *
+ * Returns the value of the PCORES field of the GCR_CONFIG register plus 1, or
+ * zero if no Coherence Manager is present.
+ */
+static inline unsigned int mips_cps_numcores(unsigned int cluster)
+{
+ if (!mips_cm_present())
+ return 0;
+
+ /* Add one before masking to handle 0xff indicating no cores */
+ return (mips_cps_cluster_config(cluster) + 1) & CM_GCR_CONFIG_PCORES;
+}
+
+/**
+ * mips_cps_numiocu - return the number of IOCUs present in a cluster
+ * @cluster: the ID of the cluster whose IOCU count we want
+ *
+ * Returns the value of the NUMIOCU field of the GCR_CONFIG register, or zero
+ * if no Coherence Manager is present.
+ */
+static inline unsigned int mips_cps_numiocu(unsigned int cluster)
+{
+ unsigned int num_iocu;
+
+ if (!mips_cm_present())
+ return 0;
+
+ num_iocu = mips_cps_cluster_config(cluster) & CM_GCR_CONFIG_NUMIOCU;
+ num_iocu >>= __ffs(CM_GCR_CONFIG_NUMIOCU);
+ return num_iocu;
+}
+
+/**
+ * mips_cps_numvps - return the number of VPs (threads) supported by a core
+ * @cluster: the ID of the cluster containing the core we want to examine
+ * @core: the ID of the core whose VP count we want
+ *
+ * Returns the number of Virtual Processors (VPs, ie. hardware threads) that
+ * are supported by the given @core in the given @cluster. If the core or the
+ * kernel do not support hardware mutlti-threading this returns 1.
+ */
+static inline unsigned int mips_cps_numvps(unsigned int cluster, unsigned int core)
+{
+ unsigned int cfg;
+
+ if (!mips_cm_present())
+ return 1;
+
+ if ((!IS_ENABLED(CONFIG_MIPS_MT_SMP) || !cpu_has_mipsmt)
+ && (!IS_ENABLED(CONFIG_CPU_MIPSR6) || !cpu_has_vp))
+ return 1;
+
+ mips_cm_lock_other(cluster, core, 0, CM_GCR_Cx_OTHER_BLOCK_LOCAL);
+
+ if (mips_cm_revision() < CM_REV_CM3_5) {
+ /*
+ * Prior to CM 3.5 we can only have one cluster & don't have
+ * CPC_Cx_CONFIG, so we read GCR_Cx_CONFIG.
+ */
+ cfg = read_gcr_co_config();
+ } else {
+ /*
+ * From CM 3.5 onwards we read CPC_Cx_CONFIG because the CPC is
+ * always powered, which allows us to not worry about powering
+ * up the cluster's CM here.
+ */
+ cfg = read_cpc_co_config();
+ }
+
+ mips_cm_unlock_other();
+
+ return (cfg + 1) & CM_GCR_Cx_CONFIG_PVPE;
+}
+
+#endif /* __MIPS_ASM_MIPS_CPS_H__ */
diff --git a/arch/mips/include/asm/mips-gic.h b/arch/mips/include/asm/mips-gic.h
new file mode 100644
index 000000000000..a2badf572632
--- /dev/null
+++ b/arch/mips/include/asm/mips-gic.h
@@ -0,0 +1,347 @@
+/*
+ * Copyright (C) 2017 Imagination Technologies
+ * Author: Paul Burton <paul.burton@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __MIPS_ASM_MIPS_CPS_H__
+# error Please include asm/mips-cps.h rather than asm/mips-gic.h
+#endif
+
+#ifndef __MIPS_ASM_MIPS_GIC_H__
+#define __MIPS_ASM_MIPS_GIC_H__
+
+#include <linux/bitops.h>
+
+/* The base address of the GIC registers */
+extern void __iomem *mips_gic_base;
+
+/* Offsets from the GIC base address to various control blocks */
+#define MIPS_GIC_SHARED_OFS 0x00000
+#define MIPS_GIC_SHARED_SZ 0x08000
+#define MIPS_GIC_LOCAL_OFS 0x08000
+#define MIPS_GIC_LOCAL_SZ 0x04000
+#define MIPS_GIC_REDIR_OFS 0x0c000
+#define MIPS_GIC_REDIR_SZ 0x04000
+#define MIPS_GIC_USER_OFS 0x10000
+#define MIPS_GIC_USER_SZ 0x10000
+
+/* For read-only shared registers */
+#define GIC_ACCESSOR_RO(sz, off, name) \
+ CPS_ACCESSOR_RO(gic, sz, MIPS_GIC_SHARED_OFS + off, name)
+
+/* For read-write shared registers */
+#define GIC_ACCESSOR_RW(sz, off, name) \
+ CPS_ACCESSOR_RW(gic, sz, MIPS_GIC_SHARED_OFS + off, name)
+
+/* For read-only local registers */
+#define GIC_VX_ACCESSOR_RO(sz, off, name) \
+ CPS_ACCESSOR_RO(gic, sz, MIPS_GIC_LOCAL_OFS + off, vl_##name) \
+ CPS_ACCESSOR_RO(gic, sz, MIPS_GIC_REDIR_OFS + off, vo_##name)
+
+/* For read-write local registers */
+#define GIC_VX_ACCESSOR_RW(sz, off, name) \
+ CPS_ACCESSOR_RW(gic, sz, MIPS_GIC_LOCAL_OFS + off, vl_##name) \
+ CPS_ACCESSOR_RW(gic, sz, MIPS_GIC_REDIR_OFS + off, vo_##name)
+
+/* For read-only shared per-interrupt registers */
+#define GIC_ACCESSOR_RO_INTR_REG(sz, off, stride, name) \
+static inline void __iomem *addr_gic_##name(unsigned int intr) \
+{ \
+ return mips_gic_base + (off) + (intr * (stride)); \
+} \
+ \
+static inline unsigned int read_gic_##name(unsigned int intr) \
+{ \
+ BUILD_BUG_ON(sz != 32); \
+ return __raw_readl(addr_gic_##name(intr)); \
+}
+
+/* For read-write shared per-interrupt registers */
+#define GIC_ACCESSOR_RW_INTR_REG(sz, off, stride, name) \
+ GIC_ACCESSOR_RO_INTR_REG(sz, off, stride, name) \
+ \
+static inline void write_gic_##name(unsigned int intr, \
+ unsigned int val) \
+{ \
+ BUILD_BUG_ON(sz != 32); \
+ __raw_writel(val, addr_gic_##name(intr)); \
+}
+
+/* For read-only local per-interrupt registers */
+#define GIC_VX_ACCESSOR_RO_INTR_REG(sz, off, stride, name) \
+ GIC_ACCESSOR_RO_INTR_REG(sz, MIPS_GIC_LOCAL_OFS + off, \
+ stride, vl_##name) \
+ GIC_ACCESSOR_RO_INTR_REG(sz, MIPS_GIC_REDIR_OFS + off, \
+ stride, vo_##name)
+
+/* For read-write local per-interrupt registers */
+#define GIC_VX_ACCESSOR_RW_INTR_REG(sz, off, stride, name) \
+ GIC_ACCESSOR_RW_INTR_REG(sz, MIPS_GIC_LOCAL_OFS + off, \
+ stride, vl_##name) \
+ GIC_ACCESSOR_RW_INTR_REG(sz, MIPS_GIC_REDIR_OFS + off, \
+ stride, vo_##name)
+
+/* For read-only shared bit-per-interrupt registers */
+#define GIC_ACCESSOR_RO_INTR_BIT(off, name) \
+static inline void __iomem *addr_gic_##name(void) \
+{ \
+ return mips_gic_base + (off); \
+} \
+ \
+static inline unsigned int read_gic_##name(unsigned int intr) \
+{ \
+ void __iomem *addr = addr_gic_##name(); \
+ unsigned int val; \
+ \
+ if (mips_cm_is64) { \
+ addr += (intr / 64) * sizeof(uint64_t); \
+ val = __raw_readq(addr) >> intr % 64; \
+ } else { \
+ addr += (intr / 32) * sizeof(uint32_t); \
+ val = __raw_readl(addr) >> intr % 32; \
+ } \
+ \
+ return val & 0x1; \
+}
+
+/* For read-write shared bit-per-interrupt registers */
+#define GIC_ACCESSOR_RW_INTR_BIT(off, name) \
+ GIC_ACCESSOR_RO_INTR_BIT(off, name) \
+ \
+static inline void write_gic_##name(unsigned int intr) \
+{ \
+ void __iomem *addr = addr_gic_##name(); \
+ \
+ if (mips_cm_is64) { \
+ addr += (intr / 64) * sizeof(uint64_t); \
+ __raw_writeq(BIT(intr % 64), addr); \
+ } else { \
+ addr += (intr / 32) * sizeof(uint32_t); \
+ __raw_writel(BIT(intr % 32), addr); \
+ } \
+} \
+ \
+static inline void change_gic_##name(unsigned int intr, \
+ unsigned int val) \
+{ \
+ void __iomem *addr = addr_gic_##name(); \
+ \
+ if (mips_cm_is64) { \
+ uint64_t _val; \
+ \
+ addr += (intr / 64) * sizeof(uint64_t); \
+ _val = __raw_readq(addr); \
+ _val &= ~BIT_ULL(intr % 64); \
+ _val |= (uint64_t)val << (intr % 64); \
+ __raw_writeq(_val, addr); \
+ } else { \
+ uint32_t _val; \
+ \
+ addr += (intr / 32) * sizeof(uint32_t); \
+ _val = __raw_readl(addr); \
+ _val &= ~BIT(intr % 32); \
+ _val |= val << (intr % 32); \
+ __raw_writel(_val, addr); \
+ } \
+}
+
+/* For read-only local bit-per-interrupt registers */
+#define GIC_VX_ACCESSOR_RO_INTR_BIT(sz, off, name) \
+ GIC_ACCESSOR_RO_INTR_BIT(sz, MIPS_GIC_LOCAL_OFS + off, \
+ vl_##name) \
+ GIC_ACCESSOR_RO_INTR_BIT(sz, MIPS_GIC_REDIR_OFS + off, \
+ vo_##name)
+
+/* For read-write local bit-per-interrupt registers */
+#define GIC_VX_ACCESSOR_RW_INTR_BIT(sz, off, name) \
+ GIC_ACCESSOR_RW_INTR_BIT(sz, MIPS_GIC_LOCAL_OFS + off, \
+ vl_##name) \
+ GIC_ACCESSOR_RW_INTR_BIT(sz, MIPS_GIC_REDIR_OFS + off, \
+ vo_##name)
+
+/* GIC_SH_CONFIG - Information about the GIC configuration */
+GIC_ACCESSOR_RW(32, 0x000, config)
+#define GIC_CONFIG_COUNTSTOP BIT(28)
+#define GIC_CONFIG_COUNTBITS GENMASK(27, 24)
+#define GIC_CONFIG_NUMINTERRUPTS GENMASK(23, 16)
+#define GIC_CONFIG_PVPS GENMASK(6, 0)
+
+/* GIC_SH_COUNTER - Shared global counter value */
+GIC_ACCESSOR_RW(64, 0x010, counter)
+GIC_ACCESSOR_RW(32, 0x010, counter_32l)
+GIC_ACCESSOR_RW(32, 0x014, counter_32h)
+
+/* GIC_SH_POL_* - Configures interrupt polarity */
+GIC_ACCESSOR_RW_INTR_BIT(0x100, pol)
+#define GIC_POL_ACTIVE_LOW 0 /* when level triggered */
+#define GIC_POL_ACTIVE_HIGH 1 /* when level triggered */
+#define GIC_POL_FALLING_EDGE 0 /* when single-edge triggered */
+#define GIC_POL_RISING_EDGE 1 /* when single-edge triggered */
+
+/* GIC_SH_TRIG_* - Configures interrupts to be edge or level triggered */
+GIC_ACCESSOR_RW_INTR_BIT(0x180, trig)
+#define GIC_TRIG_LEVEL 0
+#define GIC_TRIG_EDGE 1
+
+/* GIC_SH_DUAL_* - Configures whether interrupts trigger on both edges */
+GIC_ACCESSOR_RW_INTR_BIT(0x200, dual)
+#define GIC_DUAL_SINGLE 0 /* when edge-triggered */
+#define GIC_DUAL_DUAL 1 /* when edge-triggered */
+
+/* GIC_SH_WEDGE - Write an 'edge', ie. trigger an interrupt */
+GIC_ACCESSOR_RW(32, 0x280, wedge)
+#define GIC_WEDGE_RW BIT(31)
+#define GIC_WEDGE_INTR GENMASK(7, 0)
+
+/* GIC_SH_RMASK_* - Reset/clear shared interrupt mask bits */
+GIC_ACCESSOR_RW_INTR_BIT(0x300, rmask)
+
+/* GIC_SH_SMASK_* - Set shared interrupt mask bits */
+GIC_ACCESSOR_RW_INTR_BIT(0x380, smask)
+
+/* GIC_SH_MASK_* - Read the current shared interrupt mask */
+GIC_ACCESSOR_RO_INTR_BIT(0x400, mask)
+
+/* GIC_SH_PEND_* - Read currently pending shared interrupts */
+GIC_ACCESSOR_RO_INTR_BIT(0x480, pend)
+
+/* GIC_SH_MAPx_PIN - Map shared interrupts to a particular CPU pin */
+GIC_ACCESSOR_RW_INTR_REG(32, 0x500, 0x4, map_pin)
+#define GIC_MAP_PIN_MAP_TO_PIN BIT(31)
+#define GIC_MAP_PIN_MAP_TO_NMI BIT(30)
+#define GIC_MAP_PIN_MAP GENMASK(5, 0)
+
+/* GIC_SH_MAPx_VP - Map shared interrupts to a particular Virtual Processor */
+GIC_ACCESSOR_RW_INTR_REG(32, 0x2000, 0x20, map_vp)
+
+/* GIC_Vx_CTL - VP-level interrupt control */
+GIC_VX_ACCESSOR_RW(32, 0x000, ctl)
+#define GIC_VX_CTL_FDC_ROUTABLE BIT(4)
+#define GIC_VX_CTL_SWINT_ROUTABLE BIT(3)
+#define GIC_VX_CTL_PERFCNT_ROUTABLE BIT(2)
+#define GIC_VX_CTL_TIMER_ROUTABLE BIT(1)
+#define GIC_VX_CTL_EIC BIT(0)
+
+/* GIC_Vx_PEND - Read currently pending local interrupts */
+GIC_VX_ACCESSOR_RO(32, 0x004, pend)
+
+/* GIC_Vx_MASK - Read the current local interrupt mask */
+GIC_VX_ACCESSOR_RO(32, 0x008, mask)
+
+/* GIC_Vx_RMASK - Reset/clear local interrupt mask bits */
+GIC_VX_ACCESSOR_RW(32, 0x00c, rmask)
+
+/* GIC_Vx_SMASK - Set local interrupt mask bits */
+GIC_VX_ACCESSOR_RW(32, 0x010, smask)
+
+/* GIC_Vx_*_MAP - Route local interrupts to the desired pins */
+GIC_VX_ACCESSOR_RW_INTR_REG(32, 0x040, 0x4, map)
+
+/* GIC_Vx_WD_MAP - Route the local watchdog timer interrupt */
+GIC_VX_ACCESSOR_RW(32, 0x040, wd_map)
+
+/* GIC_Vx_COMPARE_MAP - Route the local count/compare interrupt */
+GIC_VX_ACCESSOR_RW(32, 0x044, compare_map)
+
+/* GIC_Vx_TIMER_MAP - Route the local CPU timer (cp0 count/compare) interrupt */
+GIC_VX_ACCESSOR_RW(32, 0x048, timer_map)
+
+/* GIC_Vx_FDC_MAP - Route the local fast debug channel interrupt */
+GIC_VX_ACCESSOR_RW(32, 0x04c, fdc_map)
+
+/* GIC_Vx_PERFCTR_MAP - Route the local performance counter interrupt */
+GIC_VX_ACCESSOR_RW(32, 0x050, perfctr_map)
+
+/* GIC_Vx_SWINT0_MAP - Route the local software interrupt 0 */
+GIC_VX_ACCESSOR_RW(32, 0x054, swint0_map)
+
+/* GIC_Vx_SWINT1_MAP - Route the local software interrupt 1 */
+GIC_VX_ACCESSOR_RW(32, 0x058, swint1_map)
+
+/* GIC_Vx_OTHER - Configure access to other Virtual Processor registers */
+GIC_VX_ACCESSOR_RW(32, 0x080, other)
+#define GIC_VX_OTHER_VPNUM GENMASK(5, 0)
+
+/* GIC_Vx_IDENT - Retrieve the local Virtual Processor's ID */
+GIC_VX_ACCESSOR_RO(32, 0x088, ident)
+#define GIC_VX_IDENT_VPNUM GENMASK(5, 0)
+
+/* GIC_Vx_COMPARE - Value to compare with GIC_SH_COUNTER */
+GIC_VX_ACCESSOR_RW(64, 0x0a0, compare)
+
+/* GIC_Vx_EIC_SHADOW_SET_BASE - Set shadow register set for each interrupt */
+GIC_VX_ACCESSOR_RW_INTR_REG(32, 0x100, 0x4, eic_shadow_set)
+
+/**
+ * enum mips_gic_local_interrupt - GIC local interrupts
+ * @GIC_LOCAL_INT_WD: GIC watchdog timer interrupt
+ * @GIC_LOCAL_INT_COMPARE: GIC count/compare interrupt
+ * @GIC_LOCAL_INT_TIMER: CP0 count/compare interrupt
+ * @GIC_LOCAL_INT_PERFCTR: Performance counter interrupt
+ * @GIC_LOCAL_INT_SWINT0: Software interrupt 0
+ * @GIC_LOCAL_INT_SWINT1: Software interrupt 1
+ * @GIC_LOCAL_INT_FDC: Fast debug channel interrupt
+ * @GIC_NUM_LOCAL_INTRS: The number of local interrupts
+ *
+ * Enumerates interrupts provided by the GIC that are local to a VP.
+ */
+enum mips_gic_local_interrupt {
+ GIC_LOCAL_INT_WD,
+ GIC_LOCAL_INT_COMPARE,
+ GIC_LOCAL_INT_TIMER,
+ GIC_LOCAL_INT_PERFCTR,
+ GIC_LOCAL_INT_SWINT0,
+ GIC_LOCAL_INT_SWINT1,
+ GIC_LOCAL_INT_FDC,
+ GIC_NUM_LOCAL_INTRS
+};
+
+/**
+ * mips_gic_present() - Determine whether a GIC is present
+ *
+ * Determines whether a MIPS Global Interrupt Controller (GIC) is present in
+ * the system that the kernel is running on.
+ *
+ * Return true if a GIC is present, else false.
+ */
+static inline bool mips_gic_present(void)
+{
+ return IS_ENABLED(CONFIG_MIPS_GIC) && mips_gic_base;
+}
+
+/**
+ * gic_get_c0_compare_int() - Return cp0 count/compare interrupt virq
+ *
+ * Determine the virq number to use for the coprocessor 0 count/compare
+ * interrupt, which may be routed via the GIC.
+ *
+ * Returns the virq number or a negative error number.
+ */
+extern int gic_get_c0_compare_int(void);
+
+/**
+ * gic_get_c0_perfcount_int() - Return performance counter interrupt virq
+ *
+ * Determine the virq number to use for CPU performance counter interrupts,
+ * which may be routed via the GIC.
+ *
+ * Returns the virq number or a negative error number.
+ */
+extern int gic_get_c0_perfcount_int(void);
+
+/**
+ * gic_get_c0_fdc_int() - Return fast debug channel interrupt virq
+ *
+ * Determine the virq number to use for fast debug channel (FDC) interrupts,
+ * which may be routed via the GIC.
+ *
+ * Returns the virq number or a negative error number.
+ */
+extern int gic_get_c0_fdc_int(void);
+
+#endif /* __MIPS_ASM_MIPS_CPS_H__ */
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index 6875b69f59f7..a6810923b3f0 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -48,6 +48,7 @@
#define CP0_ENTRYLO0 $2
#define CP0_ENTRYLO1 $3
#define CP0_CONF $3
+#define CP0_GLOBALNUMBER $3, 1
#define CP0_CONTEXT $4
#define CP0_PAGEMASK $5
#define CP0_SEGCTL0 $5, 2
@@ -148,6 +149,16 @@
#define MIPS_ENTRYLO_RI (_ULCAST_(1) << (BITS_PER_LONG - 1))
/*
+ * MIPSr6+ GlobalNumber register definitions
+ */
+#define MIPS_GLOBALNUMBER_VP_SHF 0
+#define MIPS_GLOBALNUMBER_VP (_ULCAST_(0xff) << MIPS_GLOBALNUMBER_VP_SHF)
+#define MIPS_GLOBALNUMBER_CORE_SHF 8
+#define MIPS_GLOBALNUMBER_CORE (_ULCAST_(0xff) << MIPS_GLOBALNUMBER_CORE_SHF)
+#define MIPS_GLOBALNUMBER_CLUSTER_SHF 16
+#define MIPS_GLOBALNUMBER_CLUSTER (_ULCAST_(0xf) << MIPS_GLOBALNUMBER_CLUSTER_SHF)
+
+/*
* Values for PageMask register
*/
#ifdef CONFIG_CPU_VR41XX
@@ -652,6 +663,7 @@
#define MIPS_CONF5_SBRI (_ULCAST_(1) << 6)
#define MIPS_CONF5_FRE (_ULCAST_(1) << 8)
#define MIPS_CONF5_UFE (_ULCAST_(1) << 9)
+#define MIPS_CONF5_CA2 (_ULCAST_(1) << 14)
#define MIPS_CONF5_MSAEN (_ULCAST_(1) << 27)
#define MIPS_CONF5_EVA (_ULCAST_(1) << 28)
#define MIPS_CONF5_CV (_ULCAST_(1) << 29)
@@ -1365,29 +1377,32 @@ do { \
#define __write_64bit_c0_split(source, sel, val) \
do { \
+ unsigned long long __tmp; \
unsigned long __flags; \
\
local_irq_save(__flags); \
if (sel == 0) \
__asm__ __volatile__( \
".set\tmips64\n\t" \
- "dsll\t%L0, %L0, 32\n\t" \
+ "dsll\t%L0, %L1, 32\n\t" \
"dsrl\t%L0, %L0, 32\n\t" \
- "dsll\t%M0, %M0, 32\n\t" \
+ "dsll\t%M0, %M1, 32\n\t" \
"or\t%L0, %L0, %M0\n\t" \
"dmtc0\t%L0, " #source "\n\t" \
".set\tmips0" \
- : : "r" (val)); \
+ : "=&r,r" (__tmp) \
+ : "r,0" (val)); \
else \
__asm__ __volatile__( \
".set\tmips64\n\t" \
- "dsll\t%L0, %L0, 32\n\t" \
+ "dsll\t%L0, %L1, 32\n\t" \
"dsrl\t%L0, %L0, 32\n\t" \
- "dsll\t%M0, %M0, 32\n\t" \
+ "dsll\t%M0, %M1, 32\n\t" \
"or\t%L0, %L0, %M0\n\t" \
"dmtc0\t%L0, " #source ", " #sel "\n\t" \
".set\tmips0" \
- : : "r" (val)); \
+ : "=&r,r" (__tmp) \
+ : "r,0" (val)); \
local_irq_restore(__flags); \
} while (0)
@@ -1445,6 +1460,8 @@ do { \
#define read_c0_conf() __read_32bit_c0_register($3, 0)
#define write_c0_conf(val) __write_32bit_c0_register($3, 0, val)
+#define read_c0_globalnumber() __read_32bit_c0_register($3, 1)
+
#define read_c0_context() __read_ulong_c0_register($4, 0)
#define write_c0_context(val) __write_ulong_c0_register($4, 0, val)
diff --git a/arch/mips/include/asm/module.h b/arch/mips/include/asm/module.h
index 702c273e67a9..06552a965cf4 100644
--- a/arch/mips/include/asm/module.h
+++ b/arch/mips/include/asm/module.h
@@ -47,8 +47,8 @@ typedef struct {
#define Elf_Mips_Rel Elf32_Rel
#define Elf_Mips_Rela Elf32_Rela
-#define ELF_MIPS_R_SYM(rel) ELF32_R_SYM(rel.r_info)
-#define ELF_MIPS_R_TYPE(rel) ELF32_R_TYPE(rel.r_info)
+#define ELF_MIPS_R_SYM(rel) ELF32_R_SYM((rel).r_info)
+#define ELF_MIPS_R_TYPE(rel) ELF32_R_TYPE((rel).r_info)
#endif
@@ -65,8 +65,8 @@ typedef struct {
#define Elf_Mips_Rel Elf64_Mips_Rel
#define Elf_Mips_Rela Elf64_Mips_Rela
-#define ELF_MIPS_R_SYM(rel) (rel.r_sym)
-#define ELF_MIPS_R_TYPE(rel) (rel.r_type)
+#define ELF_MIPS_R_SYM(rel) ((rel).r_sym)
+#define ELF_MIPS_R_TYPE(rel) ((rel).r_type)
#endif
@@ -114,8 +114,6 @@ search_module_dbetables(unsigned long addr)
#define MODULE_PROC_FAMILY "R5432 "
#elif defined CONFIG_CPU_R5500
#define MODULE_PROC_FAMILY "R5500 "
-#elif defined CONFIG_CPU_R6000
-#define MODULE_PROC_FAMILY "R6000 "
#elif defined CONFIG_CPU_NEVADA
#define MODULE_PROC_FAMILY "NEVADA "
#elif defined CONFIG_CPU_R8000
diff --git a/arch/mips/include/asm/netlogic/common.h b/arch/mips/include/asm/netlogic/common.h
index e0717d10e650..a6e6cbebe046 100644
--- a/arch/mips/include/asm/netlogic/common.h
+++ b/arch/mips/include/asm/netlogic/common.h
@@ -84,7 +84,7 @@ nlm_set_nmi_handler(void *handler)
*/
void nlm_init_boot_cpu(void);
unsigned int nlm_get_cpu_frequency(void);
-extern struct plat_smp_ops nlm_smp_ops;
+extern const struct plat_smp_ops nlm_smp_ops;
extern char nlm_reset_entry[], nlm_reset_entry_end[];
/* SWIOTLB */
diff --git a/arch/mips/include/asm/octeon/cvmx-boot-vector.h b/arch/mips/include/asm/octeon/cvmx-boot-vector.h
new file mode 100644
index 000000000000..8db08241d53c
--- /dev/null
+++ b/arch/mips/include/asm/octeon/cvmx-boot-vector.h
@@ -0,0 +1,53 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003-2017 Cavium, Inc.
+ */
+
+#ifndef __CVMX_BOOT_VECTOR_H__
+#define __CVMX_BOOT_VECTOR_H__
+
+#include <asm/octeon/octeon.h>
+
+/*
+ * The boot vector table is made up of an array of 1024 elements of
+ * struct cvmx_boot_vector_element. There is one entry for each
+ * possible MIPS CPUNum, indexed by the CPUNum.
+ *
+ * Once cvmx_boot_vector_get() returns a non-NULL value (indicating
+ * success), NMI to a core will cause execution to transfer to the
+ * target_ptr location for that core's entry in the vector table.
+ *
+ * The struct cvmx_boot_vector_element fields app0, app1, and app2 can
+ * be used by the application that has set the target_ptr in any
+ * application specific manner, they are not touched by the vectoring
+ * code.
+ *
+ * The boot vector code clobbers the CP0_DESAVE register, and on
+ * OCTEON II and later CPUs also clobbers CP0_KScratch2. All GP
+ * registers are preserved, except on pre-OCTEON II CPUs, where k1 is
+ * clobbered.
+ *
+ */
+
+
+/*
+ * Applications install the boot bus code in cvmx-boot-vector.c, which
+ * uses this magic:
+ */
+#define OCTEON_BOOT_MOVEABLE_MAGIC1 0xdb00110ad358eacdull
+
+struct cvmx_boot_vector_element {
+ /* kseg0 or xkphys address of target code. */
+ uint64_t target_ptr;
+ /* Three application specific arguments. */
+ uint64_t app0;
+ uint64_t app1;
+ uint64_t app2;
+};
+
+struct cvmx_boot_vector_element *cvmx_boot_vector_get(void);
+
+#endif /* __CVMX_BOOT_VECTOR_H__ */
diff --git a/arch/mips/include/asm/octeon/cvmx-bootmem.h b/arch/mips/include/asm/octeon/cvmx-bootmem.h
index 374562507d0b..72d2e403a6e4 100644
--- a/arch/mips/include/asm/octeon/cvmx-bootmem.h
+++ b/arch/mips/include/asm/octeon/cvmx-bootmem.h
@@ -255,6 +255,34 @@ extern void *cvmx_bootmem_alloc_named_range(uint64_t size, uint64_t min_addr,
uint64_t max_addr, uint64_t align,
char *name);
+/**
+ * Allocate if needed a block of memory from a specific range of the
+ * free list that was passed to the application by the bootloader, and
+ * assign it a name in the global named block table. (part of the
+ * cvmx_bootmem_descriptor_t structure) Named blocks can later be
+ * freed. If the requested name block is already allocated, return
+ * the pointer to block of memory. If request cannot be satisfied
+ * within the address range specified, NULL is returned
+ *
+ * @param size Size in bytes of block to allocate
+ * @param min_addr minimum address of range
+ * @param max_addr maximum address of range
+ * @param align Alignment of memory to be allocated. (must be a power of 2)
+ * @param name name of block - must be less than CVMX_BOOTMEM_NAME_LEN bytes
+ * @param init Initialization function
+ *
+ * The initialization function is optional, if omitted the named block
+ * is initialized to all zeros when it is created, i.e. once.
+ *
+ * @return pointer to block of memory, NULL on error
+ */
+void *cvmx_bootmem_alloc_named_range_once(uint64_t size,
+ uint64_t min_addr,
+ uint64_t max_addr,
+ uint64_t align,
+ char *name,
+ void (*init) (void *));
+
extern int cvmx_bootmem_free_named(char *name);
/**
diff --git a/arch/mips/include/asm/octeon/cvmx-ciu-defs.h b/arch/mips/include/asm/octeon/cvmx-ciu-defs.h
index 0dd0e40c96d4..6e61792d9248 100644
--- a/arch/mips/include/asm/octeon/cvmx-ciu-defs.h
+++ b/arch/mips/include/asm/octeon/cvmx-ciu-defs.h
@@ -128,6 +128,7 @@ static inline uint64_t CVMX_CIU_PP_POKEX(unsigned long offset)
case OCTEON_CN52XX & OCTEON_FAMILY_MASK:
case OCTEON_CNF71XX & OCTEON_FAMILY_MASK:
case OCTEON_CN61XX & OCTEON_FAMILY_MASK:
+ case OCTEON_CN70XX & OCTEON_FAMILY_MASK:
return CVMX_ADD_IO_SEG(0x0001070000000580ull) + (offset) * 8;
case OCTEON_CN31XX & OCTEON_FAMILY_MASK:
case OCTEON_CN50XX & OCTEON_FAMILY_MASK:
@@ -143,6 +144,10 @@ static inline uint64_t CVMX_CIU_PP_POKEX(unsigned long offset)
return CVMX_ADD_IO_SEG(0x0001070000000580ull) + (offset) * 8;
case OCTEON_CN68XX & OCTEON_FAMILY_MASK:
return CVMX_ADD_IO_SEG(0x0001070100100200ull) + (offset) * 8;
+ case OCTEON_CNF75XX & OCTEON_FAMILY_MASK:
+ case OCTEON_CN73XX & OCTEON_FAMILY_MASK:
+ case OCTEON_CN78XX & OCTEON_FAMILY_MASK:
+ return CVMX_ADD_IO_SEG(0x0001010000030000ull) + (offset) * 8;
}
return CVMX_ADD_IO_SEG(0x0001070000000580ull) + (offset) * 8;
}
@@ -180,6 +185,7 @@ static inline uint64_t CVMX_CIU_WDOGX(unsigned long offset)
case OCTEON_CN52XX & OCTEON_FAMILY_MASK:
case OCTEON_CNF71XX & OCTEON_FAMILY_MASK:
case OCTEON_CN61XX & OCTEON_FAMILY_MASK:
+ case OCTEON_CN70XX & OCTEON_FAMILY_MASK:
return CVMX_ADD_IO_SEG(0x0001070000000500ull) + (offset) * 8;
case OCTEON_CN31XX & OCTEON_FAMILY_MASK:
case OCTEON_CN50XX & OCTEON_FAMILY_MASK:
@@ -195,6 +201,10 @@ static inline uint64_t CVMX_CIU_WDOGX(unsigned long offset)
return CVMX_ADD_IO_SEG(0x0001070000000500ull) + (offset) * 8;
case OCTEON_CN68XX & OCTEON_FAMILY_MASK:
return CVMX_ADD_IO_SEG(0x0001070100100000ull) + (offset) * 8;
+ case OCTEON_CNF75XX & OCTEON_FAMILY_MASK:
+ case OCTEON_CN73XX & OCTEON_FAMILY_MASK:
+ case OCTEON_CN78XX & OCTEON_FAMILY_MASK:
+ return CVMX_ADD_IO_SEG(0x0001010000020000ull) + (offset) * 8;
}
return CVMX_ADD_IO_SEG(0x0001070000000500ull) + (offset) * 8;
}
diff --git a/arch/mips/include/asm/octeon/cvmx-l2c-defs.h b/arch/mips/include/asm/octeon/cvmx-l2c-defs.h
index d045973ddb33..3ea84acf1814 100644
--- a/arch/mips/include/asm/octeon/cvmx-l2c-defs.h
+++ b/arch/mips/include/asm/octeon/cvmx-l2c-defs.h
@@ -33,6 +33,10 @@
#define CVMX_L2C_DBG (CVMX_ADD_IO_SEG(0x0001180080000030ull))
#define CVMX_L2C_CFG (CVMX_ADD_IO_SEG(0x0001180080000000ull))
#define CVMX_L2C_CTL (CVMX_ADD_IO_SEG(0x0001180080800000ull))
+#define CVMX_L2C_ERR_TDTX(block_id) \
+ (CVMX_ADD_IO_SEG(0x0001180080A007E0ull) + ((block_id) & 3) * 0x40000ull)
+#define CVMX_L2C_ERR_TTGX(block_id) \
+ (CVMX_ADD_IO_SEG(0x0001180080A007E8ull) + ((block_id) & 3) * 0x40000ull)
#define CVMX_L2C_LCKBASE (CVMX_ADD_IO_SEG(0x0001180080000058ull))
#define CVMX_L2C_LCKOFF (CVMX_ADD_IO_SEG(0x0001180080000060ull))
#define CVMX_L2C_PFCTL (CVMX_ADD_IO_SEG(0x0001180080000090ull))
@@ -66,9 +70,40 @@
((offset) & 1) * 8)
#define CVMX_L2C_WPAR_PPX(offset) (CVMX_ADD_IO_SEG(0x0001180080840000ull) + \
((offset) & 31) * 8)
-#define CVMX_L2D_FUS3 (CVMX_ADD_IO_SEG(0x00011800800007B8ull))
+union cvmx_l2c_err_tdtx {
+ uint64_t u64;
+ struct cvmx_l2c_err_tdtx_s {
+ __BITFIELD_FIELD(uint64_t dbe:1,
+ __BITFIELD_FIELD(uint64_t sbe:1,
+ __BITFIELD_FIELD(uint64_t vdbe:1,
+ __BITFIELD_FIELD(uint64_t vsbe:1,
+ __BITFIELD_FIELD(uint64_t syn:10,
+ __BITFIELD_FIELD(uint64_t reserved_22_49:28,
+ __BITFIELD_FIELD(uint64_t wayidx:18,
+ __BITFIELD_FIELD(uint64_t reserved_2_3:2,
+ __BITFIELD_FIELD(uint64_t type:2,
+ ;)))))))))
+ } s;
+};
+
+union cvmx_l2c_err_ttgx {
+ uint64_t u64;
+ struct cvmx_l2c_err_ttgx_s {
+ __BITFIELD_FIELD(uint64_t dbe:1,
+ __BITFIELD_FIELD(uint64_t sbe:1,
+ __BITFIELD_FIELD(uint64_t noway:1,
+ __BITFIELD_FIELD(uint64_t reserved_56_60:5,
+ __BITFIELD_FIELD(uint64_t syn:6,
+ __BITFIELD_FIELD(uint64_t reserved_22_49:28,
+ __BITFIELD_FIELD(uint64_t wayidx:15,
+ __BITFIELD_FIELD(uint64_t reserved_2_6:5,
+ __BITFIELD_FIELD(uint64_t type:2,
+ ;)))))))))
+ } s;
+};
+
union cvmx_l2c_cfg {
uint64_t u64;
struct cvmx_l2c_cfg_s {
diff --git a/arch/mips/include/asm/octeon/cvmx-l2d-defs.h b/arch/mips/include/asm/octeon/cvmx-l2d-defs.h
new file mode 100644
index 000000000000..a951ad5d65ad
--- /dev/null
+++ b/arch/mips/include/asm/octeon/cvmx-l2d-defs.h
@@ -0,0 +1,60 @@
+/***********************license start***************
+ * Author: Cavium Networks
+ *
+ * Contact: support@caviumnetworks.com
+ * This file is part of the OCTEON SDK
+ *
+ * Copyright (c) 2003-2017 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this file; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * or visit http://www.gnu.org/licenses/.
+ *
+ * This file may also be available under a different license from Cavium.
+ * Contact Cavium Networks for more information
+ ***********************license end**************************************/
+
+#ifndef __CVMX_L2D_DEFS_H__
+#define __CVMX_L2D_DEFS_H__
+
+#define CVMX_L2D_ERR (CVMX_ADD_IO_SEG(0x0001180080000010ull))
+#define CVMX_L2D_FUS3 (CVMX_ADD_IO_SEG(0x00011800800007B8ull))
+
+
+union cvmx_l2d_err {
+ uint64_t u64;
+ struct cvmx_l2d_err_s {
+ __BITFIELD_FIELD(uint64_t reserved_6_63:58,
+ __BITFIELD_FIELD(uint64_t bmhclsel:1,
+ __BITFIELD_FIELD(uint64_t ded_err:1,
+ __BITFIELD_FIELD(uint64_t sec_err:1,
+ __BITFIELD_FIELD(uint64_t ded_intena:1,
+ __BITFIELD_FIELD(uint64_t sec_intena:1,
+ __BITFIELD_FIELD(uint64_t ecc_ena:1,
+ ;)))))))
+ } s;
+};
+
+union cvmx_l2d_fus3 {
+ uint64_t u64;
+ struct cvmx_l2d_fus3_s {
+ __BITFIELD_FIELD(uint64_t reserved_40_63:24,
+ __BITFIELD_FIELD(uint64_t ema_ctl:3,
+ __BITFIELD_FIELD(uint64_t reserved_34_36:3,
+ __BITFIELD_FIELD(uint64_t q3fus:34,
+ ;))))
+ } s;
+};
+
+#endif
diff --git a/arch/mips/include/asm/octeon/cvmx.h b/arch/mips/include/asm/octeon/cvmx.h
index 9742202f2a32..205ab2ce10f8 100644
--- a/arch/mips/include/asm/octeon/cvmx.h
+++ b/arch/mips/include/asm/octeon/cvmx.h
@@ -62,6 +62,7 @@ enum cvmx_mips_space {
#include <asm/octeon/cvmx-iob-defs.h>
#include <asm/octeon/cvmx-ipd-defs.h>
#include <asm/octeon/cvmx-l2c-defs.h>
+#include <asm/octeon/cvmx-l2d-defs.h>
#include <asm/octeon/cvmx-l2t-defs.h>
#include <asm/octeon/cvmx-led-defs.h>
#include <asm/octeon/cvmx-mio-defs.h>
@@ -356,6 +357,34 @@ static inline unsigned int cvmx_get_local_core_num(void)
return cvmx_get_core_num() & ((1 << CVMX_NODE_NO_SHIFT) - 1);
}
+#define CVMX_NODE_BITS (2) /* Number of bits to define a node */
+#define CVMX_MAX_NODES (1 << CVMX_NODE_BITS)
+#define CVMX_NODE_IO_SHIFT (36)
+#define CVMX_NODE_MEM_SHIFT (40)
+#define CVMX_NODE_IO_MASK ((uint64_t)CVMX_NODE_MASK << CVMX_NODE_IO_SHIFT)
+
+static inline void cvmx_write_csr_node(uint64_t node, uint64_t csr_addr,
+ uint64_t val)
+{
+ uint64_t composite_csr_addr, node_addr;
+
+ node_addr = (node & CVMX_NODE_MASK) << CVMX_NODE_IO_SHIFT;
+ composite_csr_addr = (csr_addr & ~CVMX_NODE_IO_MASK) | node_addr;
+
+ cvmx_write64_uint64(composite_csr_addr, val);
+ if (((csr_addr >> 40) & 0x7ffff) == (0x118))
+ cvmx_read64_uint64(CVMX_MIO_BOOT_BIST_STAT | node_addr);
+}
+
+static inline uint64_t cvmx_read_csr_node(uint64_t node, uint64_t csr_addr)
+{
+ uint64_t node_addr;
+
+ node_addr = (csr_addr & ~CVMX_NODE_IO_MASK) |
+ (node & CVMX_NODE_MASK) << CVMX_NODE_IO_SHIFT;
+ return cvmx_read_csr(node_addr);
+}
+
/**
* Returns the number of bits set in the provided value.
* Simple wrapper for POP instruction.
diff --git a/arch/mips/include/asm/octeon/octeon.h b/arch/mips/include/asm/octeon/octeon.h
index 07c0516ef4d5..c99c4b6a79f4 100644
--- a/arch/mips/include/asm/octeon/octeon.h
+++ b/arch/mips/include/asm/octeon/octeon.h
@@ -362,4 +362,6 @@ extern void octeon_fixup_irqs(void);
extern struct semaphore octeon_bootbus_sem;
+struct irq_domain *octeon_irq_get_block_domain(int node, uint8_t block);
+
#endif /* __ASM_OCTEON_OCTEON_H */
diff --git a/arch/mips/include/asm/pci.h b/arch/mips/include/asm/pci.h
index 1000c1b4c875..52f551ee492d 100644
--- a/arch/mips/include/asm/pci.h
+++ b/arch/mips/include/asm/pci.h
@@ -39,7 +39,6 @@ struct pci_controller {
unsigned long io_offset;
unsigned long io_map_base;
struct resource *busn_resource;
- unsigned long busn_offset;
#ifndef CONFIG_PCI_DOMAINS_GENERIC
unsigned int index;
diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h
index a1bdb1ea5234..39b9f311c4ef 100644
--- a/arch/mips/include/asm/pgalloc.h
+++ b/arch/mips/include/asm/pgalloc.h
@@ -116,7 +116,7 @@ static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address)
{
pud_t *pud;
- pud = (pud_t *) __get_free_pages(GFP_KERNEL|__GFP_REPEAT, PUD_ORDER);
+ pud = (pud_t *) __get_free_pages(GFP_KERNEL, PUD_ORDER);
if (pud)
pud_init((unsigned long)pud, (unsigned long)invalid_pmd_table);
return pud;
diff --git a/arch/mips/include/asm/smp-ops.h b/arch/mips/include/asm/smp-ops.h
index db7c322f057f..53b2cb8e5966 100644
--- a/arch/mips/include/asm/smp-ops.h
+++ b/arch/mips/include/asm/smp-ops.h
@@ -13,7 +13,7 @@
#include <linux/errno.h>
-#include <asm/mips-cm.h>
+#include <asm/mips-cps.h>
#ifdef CONFIG_SMP
@@ -26,7 +26,7 @@ struct plat_smp_ops {
void (*send_ipi_mask)(const struct cpumask *mask, unsigned int action);
void (*init_secondary)(void);
void (*smp_finish)(void);
- void (*boot_secondary)(int cpu, struct task_struct *idle);
+ int (*boot_secondary)(int cpu, struct task_struct *idle);
void (*smp_setup)(void);
void (*prepare_cpus)(unsigned int max_cpus);
#ifdef CONFIG_HOTPLUG_CPU
@@ -35,11 +35,11 @@ struct plat_smp_ops {
#endif
};
-extern void register_smp_ops(struct plat_smp_ops *ops);
+extern void register_smp_ops(const struct plat_smp_ops *ops);
static inline void plat_smp_setup(void)
{
- extern struct plat_smp_ops *mp_ops; /* private */
+ extern const struct plat_smp_ops *mp_ops; /* private */
mp_ops->smp_setup();
}
@@ -57,7 +57,7 @@ static inline void plat_smp_setup(void)
/* UP, nothing to do ... */
}
-static inline void register_smp_ops(struct plat_smp_ops *ops)
+static inline void register_smp_ops(const struct plat_smp_ops *ops)
{
}
@@ -66,7 +66,7 @@ static inline void register_smp_ops(struct plat_smp_ops *ops)
static inline int register_up_smp_ops(void)
{
#ifdef CONFIG_SMP_UP
- extern struct plat_smp_ops up_smp_ops;
+ extern const struct plat_smp_ops up_smp_ops;
register_smp_ops(&up_smp_ops);
@@ -79,7 +79,7 @@ static inline int register_up_smp_ops(void)
static inline int register_cmp_smp_ops(void)
{
#ifdef CONFIG_MIPS_CMP
- extern struct plat_smp_ops cmp_smp_ops;
+ extern const struct plat_smp_ops cmp_smp_ops;
if (!mips_cm_present())
return -ENODEV;
@@ -95,7 +95,7 @@ static inline int register_cmp_smp_ops(void)
static inline int register_vsmp_smp_ops(void)
{
#ifdef CONFIG_MIPS_MT_SMP
- extern struct plat_smp_ops vsmp_smp_ops;
+ extern const struct plat_smp_ops vsmp_smp_ops;
register_smp_ops(&vsmp_smp_ops);
diff --git a/arch/mips/include/asm/smp.h b/arch/mips/include/asm/smp.h
index 98a117a05fbc..9e494f8d9c03 100644
--- a/arch/mips/include/asm/smp.h
+++ b/arch/mips/include/asm/smp.h
@@ -47,7 +47,7 @@ extern int __cpu_logical_map[NR_CPUS];
/* Mask of CPUs which are currently definitely operating coherently */
extern cpumask_t cpu_coherent_mask;
-extern void asmlinkage smp_bootstrap(void);
+extern asmlinkage void smp_bootstrap(void);
extern void calculate_cpu_foreign_map(void);
@@ -58,7 +58,7 @@ extern void calculate_cpu_foreign_map(void);
*/
static inline void smp_send_reschedule(int cpu)
{
- extern struct plat_smp_ops *mp_ops; /* private */
+ extern const struct plat_smp_ops *mp_ops; /* private */
mp_ops->send_ipi_single(cpu, SMP_RESCHEDULE_YOURSELF);
}
@@ -66,14 +66,14 @@ static inline void smp_send_reschedule(int cpu)
#ifdef CONFIG_HOTPLUG_CPU
static inline int __cpu_disable(void)
{
- extern struct plat_smp_ops *mp_ops; /* private */
+ extern const struct plat_smp_ops *mp_ops; /* private */
return mp_ops->cpu_disable();
}
static inline void __cpu_die(unsigned int cpu)
{
- extern struct plat_smp_ops *mp_ops; /* private */
+ extern const struct plat_smp_ops *mp_ops; /* private */
mp_ops->cpu_die(cpu);
}
@@ -97,14 +97,14 @@ int mips_smp_ipi_free(const struct cpumask *mask);
static inline void arch_send_call_function_single_ipi(int cpu)
{
- extern struct plat_smp_ops *mp_ops; /* private */
+ extern const struct plat_smp_ops *mp_ops; /* private */
mp_ops->send_ipi_mask(cpumask_of(cpu), SMP_CALL_FUNCTION);
}
static inline void arch_send_call_function_ipi_mask(const struct cpumask *mask)
{
- extern struct plat_smp_ops *mp_ops; /* private */
+ extern const struct plat_smp_ops *mp_ops; /* private */
mp_ops->send_ipi_mask(mask, SMP_CALL_FUNCTION);
}
diff --git a/arch/mips/include/asm/spinlock.h b/arch/mips/include/asm/spinlock.h
index a8df44d60607..a7d21da16b6a 100644
--- a/arch/mips/include/asm/spinlock.h
+++ b/arch/mips/include/asm/spinlock.h
@@ -9,431 +9,9 @@
#ifndef _ASM_SPINLOCK_H
#define _ASM_SPINLOCK_H
-#include <linux/compiler.h>
-
-#include <asm/barrier.h>
#include <asm/processor.h>
-#include <asm/compiler.h>
-#include <asm/war.h>
-
-/*
- * Your basic SMP spinlocks, allowing only a single CPU anywhere
- *
- * Simple spin lock operations. There are two variants, one clears IRQ's
- * on the local processor, one does not.
- *
- * These are fair FIFO ticket locks
- *
- * (the type definitions are in asm/spinlock_types.h)
- */
-
-
-/*
- * Ticket locks are conceptually two parts, one indicating the current head of
- * the queue, and the other indicating the current tail. The lock is acquired
- * by atomically noting the tail and incrementing it by one (thus adding
- * ourself to the queue and noting our position), then waiting until the head
- * becomes equal to the the initial value of the tail.
- */
-
-static inline int arch_spin_is_locked(arch_spinlock_t *lock)
-{
- u32 counters = ACCESS_ONCE(lock->lock);
-
- return ((counters >> 16) ^ counters) & 0xffff;
-}
-
-static inline int arch_spin_value_unlocked(arch_spinlock_t lock)
-{
- return lock.h.serving_now == lock.h.ticket;
-}
-
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- u16 owner = READ_ONCE(lock->h.serving_now);
- smp_rmb();
- for (;;) {
- arch_spinlock_t tmp = READ_ONCE(*lock);
-
- if (tmp.h.serving_now == tmp.h.ticket ||
- tmp.h.serving_now != owner)
- break;
-
- cpu_relax();
- }
- smp_acquire__after_ctrl_dep();
-}
-
-static inline int arch_spin_is_contended(arch_spinlock_t *lock)
-{
- u32 counters = ACCESS_ONCE(lock->lock);
-
- return (((counters >> 16) - counters) & 0xffff) > 1;
-}
-#define arch_spin_is_contended arch_spin_is_contended
-
-static inline void arch_spin_lock(arch_spinlock_t *lock)
-{
- int my_ticket;
- int tmp;
- int inc = 0x10000;
-
- if (R10000_LLSC_WAR) {
- __asm__ __volatile__ (
- " .set push # arch_spin_lock \n"
- " .set noreorder \n"
- " \n"
- "1: ll %[ticket], %[ticket_ptr] \n"
- " addu %[my_ticket], %[ticket], %[inc] \n"
- " sc %[my_ticket], %[ticket_ptr] \n"
- " beqzl %[my_ticket], 1b \n"
- " nop \n"
- " srl %[my_ticket], %[ticket], 16 \n"
- " andi %[ticket], %[ticket], 0xffff \n"
- " bne %[ticket], %[my_ticket], 4f \n"
- " subu %[ticket], %[my_ticket], %[ticket] \n"
- "2: \n"
- " .subsection 2 \n"
- "4: andi %[ticket], %[ticket], 0xffff \n"
- " sll %[ticket], 5 \n"
- " \n"
- "6: bnez %[ticket], 6b \n"
- " subu %[ticket], 1 \n"
- " \n"
- " lhu %[ticket], %[serving_now_ptr] \n"
- " beq %[ticket], %[my_ticket], 2b \n"
- " subu %[ticket], %[my_ticket], %[ticket] \n"
- " b 4b \n"
- " subu %[ticket], %[ticket], 1 \n"
- " .previous \n"
- " .set pop \n"
- : [ticket_ptr] "+" GCC_OFF_SMALL_ASM() (lock->lock),
- [serving_now_ptr] "+m" (lock->h.serving_now),
- [ticket] "=&r" (tmp),
- [my_ticket] "=&r" (my_ticket)
- : [inc] "r" (inc));
- } else {
- __asm__ __volatile__ (
- " .set push # arch_spin_lock \n"
- " .set noreorder \n"
- " \n"
- "1: ll %[ticket], %[ticket_ptr] \n"
- " addu %[my_ticket], %[ticket], %[inc] \n"
- " sc %[my_ticket], %[ticket_ptr] \n"
- " beqz %[my_ticket], 1b \n"
- " srl %[my_ticket], %[ticket], 16 \n"
- " andi %[ticket], %[ticket], 0xffff \n"
- " bne %[ticket], %[my_ticket], 4f \n"
- " subu %[ticket], %[my_ticket], %[ticket] \n"
- "2: .insn \n"
- " .subsection 2 \n"
- "4: andi %[ticket], %[ticket], 0xffff \n"
- " sll %[ticket], 5 \n"
- " \n"
- "6: bnez %[ticket], 6b \n"
- " subu %[ticket], 1 \n"
- " \n"
- " lhu %[ticket], %[serving_now_ptr] \n"
- " beq %[ticket], %[my_ticket], 2b \n"
- " subu %[ticket], %[my_ticket], %[ticket] \n"
- " b 4b \n"
- " subu %[ticket], %[ticket], 1 \n"
- " .previous \n"
- " .set pop \n"
- : [ticket_ptr] "+" GCC_OFF_SMALL_ASM() (lock->lock),
- [serving_now_ptr] "+m" (lock->h.serving_now),
- [ticket] "=&r" (tmp),
- [my_ticket] "=&r" (my_ticket)
- : [inc] "r" (inc));
- }
-
- smp_llsc_mb();
-}
-
-static inline void arch_spin_unlock(arch_spinlock_t *lock)
-{
- unsigned int serving_now = lock->h.serving_now + 1;
- wmb();
- lock->h.serving_now = (u16)serving_now;
- nudge_writes();
-}
-
-static inline unsigned int arch_spin_trylock(arch_spinlock_t *lock)
-{
- int tmp, tmp2, tmp3;
- int inc = 0x10000;
-
- if (R10000_LLSC_WAR) {
- __asm__ __volatile__ (
- " .set push # arch_spin_trylock \n"
- " .set noreorder \n"
- " \n"
- "1: ll %[ticket], %[ticket_ptr] \n"
- " srl %[my_ticket], %[ticket], 16 \n"
- " andi %[now_serving], %[ticket], 0xffff \n"
- " bne %[my_ticket], %[now_serving], 3f \n"
- " addu %[ticket], %[ticket], %[inc] \n"
- " sc %[ticket], %[ticket_ptr] \n"
- " beqzl %[ticket], 1b \n"
- " li %[ticket], 1 \n"
- "2: \n"
- " .subsection 2 \n"
- "3: b 2b \n"
- " li %[ticket], 0 \n"
- " .previous \n"
- " .set pop \n"
- : [ticket_ptr] "+" GCC_OFF_SMALL_ASM() (lock->lock),
- [ticket] "=&r" (tmp),
- [my_ticket] "=&r" (tmp2),
- [now_serving] "=&r" (tmp3)
- : [inc] "r" (inc));
- } else {
- __asm__ __volatile__ (
- " .set push # arch_spin_trylock \n"
- " .set noreorder \n"
- " \n"
- "1: ll %[ticket], %[ticket_ptr] \n"
- " srl %[my_ticket], %[ticket], 16 \n"
- " andi %[now_serving], %[ticket], 0xffff \n"
- " bne %[my_ticket], %[now_serving], 3f \n"
- " addu %[ticket], %[ticket], %[inc] \n"
- " sc %[ticket], %[ticket_ptr] \n"
- " beqz %[ticket], 1b \n"
- " li %[ticket], 1 \n"
- "2: .insn \n"
- " .subsection 2 \n"
- "3: b 2b \n"
- " li %[ticket], 0 \n"
- " .previous \n"
- " .set pop \n"
- : [ticket_ptr] "+" GCC_OFF_SMALL_ASM() (lock->lock),
- [ticket] "=&r" (tmp),
- [my_ticket] "=&r" (tmp2),
- [now_serving] "=&r" (tmp3)
- : [inc] "r" (inc));
- }
-
- smp_llsc_mb();
-
- return tmp;
-}
-
-/*
- * Read-write spinlocks, allowing multiple readers but only one writer.
- *
- * NOTE! it is quite common to have readers in interrupts but no interrupt
- * writers. For those circumstances we can "mix" irq-safe locks - any writer
- * needs to get a irq-safe write-lock, but readers can get non-irqsafe
- * read-locks.
- */
-
-/*
- * read_can_lock - would read_trylock() succeed?
- * @lock: the rwlock in question.
- */
-#define arch_read_can_lock(rw) ((rw)->lock >= 0)
-
-/*
- * write_can_lock - would write_trylock() succeed?
- * @lock: the rwlock in question.
- */
-#define arch_write_can_lock(rw) (!(rw)->lock)
-
-static inline void arch_read_lock(arch_rwlock_t *rw)
-{
- unsigned int tmp;
-
- if (R10000_LLSC_WAR) {
- __asm__ __volatile__(
- " .set noreorder # arch_read_lock \n"
- "1: ll %1, %2 \n"
- " bltz %1, 1b \n"
- " addu %1, 1 \n"
- " sc %1, %0 \n"
- " beqzl %1, 1b \n"
- " nop \n"
- " .set reorder \n"
- : "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp)
- : GCC_OFF_SMALL_ASM() (rw->lock)
- : "memory");
- } else {
- do {
- __asm__ __volatile__(
- "1: ll %1, %2 # arch_read_lock \n"
- " bltz %1, 1b \n"
- " addu %1, 1 \n"
- "2: sc %1, %0 \n"
- : "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp)
- : GCC_OFF_SMALL_ASM() (rw->lock)
- : "memory");
- } while (unlikely(!tmp));
- }
-
- smp_llsc_mb();
-}
-
-static inline void arch_read_unlock(arch_rwlock_t *rw)
-{
- unsigned int tmp;
-
- smp_mb__before_llsc();
-
- if (R10000_LLSC_WAR) {
- __asm__ __volatile__(
- "1: ll %1, %2 # arch_read_unlock \n"
- " addiu %1, -1 \n"
- " sc %1, %0 \n"
- " beqzl %1, 1b \n"
- : "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp)
- : GCC_OFF_SMALL_ASM() (rw->lock)
- : "memory");
- } else {
- do {
- __asm__ __volatile__(
- "1: ll %1, %2 # arch_read_unlock \n"
- " addiu %1, -1 \n"
- " sc %1, %0 \n"
- : "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp)
- : GCC_OFF_SMALL_ASM() (rw->lock)
- : "memory");
- } while (unlikely(!tmp));
- }
-}
-
-static inline void arch_write_lock(arch_rwlock_t *rw)
-{
- unsigned int tmp;
-
- if (R10000_LLSC_WAR) {
- __asm__ __volatile__(
- " .set noreorder # arch_write_lock \n"
- "1: ll %1, %2 \n"
- " bnez %1, 1b \n"
- " lui %1, 0x8000 \n"
- " sc %1, %0 \n"
- " beqzl %1, 1b \n"
- " nop \n"
- " .set reorder \n"
- : "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp)
- : GCC_OFF_SMALL_ASM() (rw->lock)
- : "memory");
- } else {
- do {
- __asm__ __volatile__(
- "1: ll %1, %2 # arch_write_lock \n"
- " bnez %1, 1b \n"
- " lui %1, 0x8000 \n"
- "2: sc %1, %0 \n"
- : "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp)
- : GCC_OFF_SMALL_ASM() (rw->lock)
- : "memory");
- } while (unlikely(!tmp));
- }
-
- smp_llsc_mb();
-}
-
-static inline void arch_write_unlock(arch_rwlock_t *rw)
-{
- smp_mb__before_llsc();
-
- __asm__ __volatile__(
- " # arch_write_unlock \n"
- " sw $0, %0 \n"
- : "=m" (rw->lock)
- : "m" (rw->lock)
- : "memory");
-}
-
-static inline int arch_read_trylock(arch_rwlock_t *rw)
-{
- unsigned int tmp;
- int ret;
-
- if (R10000_LLSC_WAR) {
- __asm__ __volatile__(
- " .set noreorder # arch_read_trylock \n"
- " li %2, 0 \n"
- "1: ll %1, %3 \n"
- " bltz %1, 2f \n"
- " addu %1, 1 \n"
- " sc %1, %0 \n"
- " .set reorder \n"
- " beqzl %1, 1b \n"
- " nop \n"
- __WEAK_LLSC_MB
- " li %2, 1 \n"
- "2: \n"
- : "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp), "=&r" (ret)
- : GCC_OFF_SMALL_ASM() (rw->lock)
- : "memory");
- } else {
- __asm__ __volatile__(
- " .set noreorder # arch_read_trylock \n"
- " li %2, 0 \n"
- "1: ll %1, %3 \n"
- " bltz %1, 2f \n"
- " addu %1, 1 \n"
- " sc %1, %0 \n"
- " beqz %1, 1b \n"
- " nop \n"
- " .set reorder \n"
- __WEAK_LLSC_MB
- " li %2, 1 \n"
- "2: .insn \n"
- : "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp), "=&r" (ret)
- : GCC_OFF_SMALL_ASM() (rw->lock)
- : "memory");
- }
-
- return ret;
-}
-
-static inline int arch_write_trylock(arch_rwlock_t *rw)
-{
- unsigned int tmp;
- int ret;
-
- if (R10000_LLSC_WAR) {
- __asm__ __volatile__(
- " .set noreorder # arch_write_trylock \n"
- " li %2, 0 \n"
- "1: ll %1, %3 \n"
- " bnez %1, 2f \n"
- " lui %1, 0x8000 \n"
- " sc %1, %0 \n"
- " beqzl %1, 1b \n"
- " nop \n"
- __WEAK_LLSC_MB
- " li %2, 1 \n"
- " .set reorder \n"
- "2: \n"
- : "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp), "=&r" (ret)
- : GCC_OFF_SMALL_ASM() (rw->lock)
- : "memory");
- } else {
- do {
- __asm__ __volatile__(
- " ll %1, %3 # arch_write_trylock \n"
- " li %2, 0 \n"
- " bnez %1, 2f \n"
- " lui %1, 0x8000 \n"
- " sc %1, %0 \n"
- " li %2, 1 \n"
- "2: .insn \n"
- : "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp),
- "=&r" (ret)
- : GCC_OFF_SMALL_ASM() (rw->lock)
- : "memory");
- } while (unlikely(!tmp));
-
- smp_llsc_mb();
- }
-
- return ret;
-}
+#include <asm/qrwlock.h>
+#include <asm/qspinlock.h>
#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
diff --git a/arch/mips/include/asm/spinlock_types.h b/arch/mips/include/asm/spinlock_types.h
index 9b2528e612c0..177e722eb96c 100644
--- a/arch/mips/include/asm/spinlock_types.h
+++ b/arch/mips/include/asm/spinlock_types.h
@@ -1,37 +1,7 @@
#ifndef _ASM_SPINLOCK_TYPES_H
#define _ASM_SPINLOCK_TYPES_H
-#ifndef __LINUX_SPINLOCK_TYPES_H
-# error "please don't include this file directly"
-#endif
-
-#include <linux/types.h>
-
-#include <asm/byteorder.h>
-
-typedef union {
- /*
- * bits 0..15 : serving_now
- * bits 16..31 : ticket
- */
- u32 lock;
- struct {
-#ifdef __BIG_ENDIAN
- u16 ticket;
- u16 serving_now;
-#else
- u16 serving_now;
- u16 ticket;
-#endif
- } h;
-} arch_spinlock_t;
-
-#define __ARCH_SPIN_LOCK_UNLOCKED { .lock = 0 }
-
-typedef struct {
- volatile unsigned int lock;
-} arch_rwlock_t;
-
-#define __ARCH_RW_LOCK_UNLOCKED { 0 }
+#include <asm-generic/qspinlock_types.h>
+#include <asm-generic/qrwlock_types.h>
#endif
diff --git a/arch/mips/include/asm/stackframe.h b/arch/mips/include/asm/stackframe.h
index eaa5a4d7d5e5..5d3563c55e0c 100644
--- a/arch/mips/include/asm/stackframe.h
+++ b/arch/mips/include/asm/stackframe.h
@@ -19,20 +19,43 @@
#include <asm/asm-offsets.h>
#include <asm/thread_info.h>
+/* Make the addition of cfi info a little easier. */
+ .macro cfi_rel_offset reg offset=0 docfi=0
+ .if \docfi
+ .cfi_rel_offset \reg, \offset
+ .endif
+ .endm
+
+ .macro cfi_st reg offset=0 docfi=0
+ LONG_S \reg, \offset(sp)
+ cfi_rel_offset \reg, \offset, \docfi
+ .endm
+
+ .macro cfi_restore reg offset=0 docfi=0
+ .if \docfi
+ .cfi_restore \reg
+ .endif
+ .endm
+
+ .macro cfi_ld reg offset=0 docfi=0
+ LONG_L \reg, \offset(sp)
+ cfi_restore \reg \offset \docfi
+ .endm
+
#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
#define STATMASK 0x3f
#else
#define STATMASK 0x1f
#endif
- .macro SAVE_AT
+ .macro SAVE_AT docfi=0
.set push
.set noat
- LONG_S $1, PT_R1(sp)
+ cfi_st $1, PT_R1, \docfi
.set pop
.endm
- .macro SAVE_TEMP
+ .macro SAVE_TEMP docfi=0
#ifdef CONFIG_CPU_HAS_SMARTMIPS
mflhxu v1
LONG_S v1, PT_LO(sp)
@@ -44,20 +67,20 @@
mfhi v1
#endif
#ifdef CONFIG_32BIT
- LONG_S $8, PT_R8(sp)
- LONG_S $9, PT_R9(sp)
+ cfi_st $8, PT_R8, \docfi
+ cfi_st $9, PT_R9, \docfi
#endif
- LONG_S $10, PT_R10(sp)
- LONG_S $11, PT_R11(sp)
- LONG_S $12, PT_R12(sp)
+ cfi_st $10, PT_R10, \docfi
+ cfi_st $11, PT_R11, \docfi
+ cfi_st $12, PT_R12, \docfi
#if !defined(CONFIG_CPU_HAS_SMARTMIPS) && !defined(CONFIG_CPU_MIPSR6)
LONG_S v1, PT_HI(sp)
mflo v1
#endif
- LONG_S $13, PT_R13(sp)
- LONG_S $14, PT_R14(sp)
- LONG_S $15, PT_R15(sp)
- LONG_S $24, PT_R24(sp)
+ cfi_st $13, PT_R13, \docfi
+ cfi_st $14, PT_R14, \docfi
+ cfi_st $15, PT_R15, \docfi
+ cfi_st $24, PT_R24, \docfi
#if !defined(CONFIG_CPU_HAS_SMARTMIPS) && !defined(CONFIG_CPU_MIPSR6)
LONG_S v1, PT_LO(sp)
#endif
@@ -71,20 +94,28 @@
#endif
.endm
- .macro SAVE_STATIC
- LONG_S $16, PT_R16(sp)
- LONG_S $17, PT_R17(sp)
- LONG_S $18, PT_R18(sp)
- LONG_S $19, PT_R19(sp)
- LONG_S $20, PT_R20(sp)
- LONG_S $21, PT_R21(sp)
- LONG_S $22, PT_R22(sp)
- LONG_S $23, PT_R23(sp)
- LONG_S $30, PT_R30(sp)
+ .macro SAVE_STATIC docfi=0
+ cfi_st $16, PT_R16, \docfi
+ cfi_st $17, PT_R17, \docfi
+ cfi_st $18, PT_R18, \docfi
+ cfi_st $19, PT_R19, \docfi
+ cfi_st $20, PT_R20, \docfi
+ cfi_st $21, PT_R21, \docfi
+ cfi_st $22, PT_R22, \docfi
+ cfi_st $23, PT_R23, \docfi
+ cfi_st $30, PT_R30, \docfi
.endm
+/*
+ * get_saved_sp returns the SP for the current CPU by looking in the
+ * kernelsp array for it. If tosp is set, it stores the current sp in
+ * k0 and loads the new value in sp. If not, it clobbers k0 and
+ * stores the new value in k1, leaving sp unaffected.
+ */
#ifdef CONFIG_SMP
- .macro get_saved_sp /* SMP variation */
+
+ /* SMP variation */
+ .macro get_saved_sp docfi=0 tosp=0
ASM_CPUID_MFC0 k0, ASM_SMP_CPUID_REG
#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
lui k1, %hi(kernelsp)
@@ -97,7 +128,15 @@
#endif
LONG_SRL k0, SMP_CPUID_PTRSHIFT
LONG_ADDU k1, k0
+ .if \tosp
+ move k0, sp
+ .if \docfi
+ .cfi_register sp, k0
+ .endif
+ LONG_L sp, %lo(kernelsp)(k1)
+ .else
LONG_L k1, %lo(kernelsp)(k1)
+ .endif
.endm
.macro set_saved_sp stackp temp temp2
@@ -106,7 +145,8 @@
LONG_S \stackp, kernelsp(\temp)
.endm
#else /* !CONFIG_SMP */
- .macro get_saved_sp /* Uniprocessor variation */
+ /* Uniprocessor variation */
+ .macro get_saved_sp docfi=0 tosp=0
#ifdef CONFIG_CPU_JUMP_WORKAROUNDS
/*
* Clear BTB (branch target buffer), forbid RAS (return address
@@ -135,7 +175,15 @@
daddiu k1, %hi(kernelsp)
dsll k1, k1, 16
#endif
+ .if \tosp
+ move k0, sp
+ .if \docfi
+ .cfi_register sp, k0
+ .endif
+ LONG_L sp, %lo(kernelsp)(k1)
+ .else
LONG_L k1, %lo(kernelsp)(k1)
+ .endif
.endm
.macro set_saved_sp stackp temp temp2
@@ -143,7 +191,7 @@
.endm
#endif
- .macro SAVE_SOME
+ .macro SAVE_SOME docfi=0
.set push
.set noat
.set reorder
@@ -151,7 +199,6 @@
sll k0, 3 /* extract cu0 bit */
.set noreorder
bltz k0, 8f
- move k1, sp
#ifdef CONFIG_EVA
/*
* Flush interAptiv's Return Prediction Stack (RPS) by writing
@@ -178,20 +225,26 @@
MTC0 k0, CP0_ENTRYHI
#endif
.set reorder
+ move k0, sp
+ .if \docfi
+ .cfi_register sp, k0
+ .endif
/* Called from user mode, new stack. */
- get_saved_sp
-#ifndef CONFIG_CPU_DADDI_WORKAROUNDS
-8: move k0, sp
- PTR_SUBU sp, k1, PT_SIZE
-#else
- .set at=k0
-8: PTR_SUBU k1, PT_SIZE
+ get_saved_sp docfi=\docfi tosp=1
+8:
+#ifdef CONFIG_CPU_DADDI_WORKAROUNDS
+ .set at=k1
+#endif
+ PTR_SUBU sp, PT_SIZE
+#ifdef CONFIG_CPU_DADDI_WORKAROUNDS
.set noat
- move k0, sp
- move sp, k1
#endif
- LONG_S k0, PT_R29(sp)
- LONG_S $3, PT_R3(sp)
+ .if \docfi
+ .cfi_def_cfa sp,0
+ .endif
+ cfi_st k0, PT_R29, \docfi
+ cfi_rel_offset sp, PT_R29, \docfi
+ cfi_st v1, PT_R3, \docfi
/*
* You might think that you don't need to save $0,
* but the FPU emulator and gdb remote debug stub
@@ -199,23 +252,26 @@
*/
LONG_S $0, PT_R0(sp)
mfc0 v1, CP0_STATUS
- LONG_S $2, PT_R2(sp)
+ cfi_st v0, PT_R2, \docfi
LONG_S v1, PT_STATUS(sp)
- LONG_S $4, PT_R4(sp)
+ cfi_st $4, PT_R4, \docfi
mfc0 v1, CP0_CAUSE
- LONG_S $5, PT_R5(sp)
+ cfi_st $5, PT_R5, \docfi
LONG_S v1, PT_CAUSE(sp)
- LONG_S $6, PT_R6(sp)
- MFC0 v1, CP0_EPC
- LONG_S $7, PT_R7(sp)
+ cfi_st $6, PT_R6, \docfi
+ cfi_st ra, PT_R31, \docfi
+ MFC0 ra, CP0_EPC
+ cfi_st $7, PT_R7, \docfi
#ifdef CONFIG_64BIT
- LONG_S $8, PT_R8(sp)
- LONG_S $9, PT_R9(sp)
+ cfi_st $8, PT_R8, \docfi
+ cfi_st $9, PT_R9, \docfi
#endif
- LONG_S v1, PT_EPC(sp)
- LONG_S $25, PT_R25(sp)
- LONG_S $28, PT_R28(sp)
- LONG_S $31, PT_R31(sp)
+ LONG_S ra, PT_EPC(sp)
+ .if \docfi
+ .cfi_rel_offset ra, PT_EPC
+ .endif
+ cfi_st $25, PT_R25, \docfi
+ cfi_st $28, PT_R28, \docfi
/* Set thread_info if we're coming from user mode */
mfc0 k0, CP0_STATUS
@@ -232,21 +288,21 @@
.set pop
.endm
- .macro SAVE_ALL
- SAVE_SOME
- SAVE_AT
- SAVE_TEMP
- SAVE_STATIC
+ .macro SAVE_ALL docfi=0
+ SAVE_SOME \docfi
+ SAVE_AT \docfi
+ SAVE_TEMP \docfi
+ SAVE_STATIC \docfi
.endm
- .macro RESTORE_AT
+ .macro RESTORE_AT docfi=0
.set push
.set noat
- LONG_L $1, PT_R1(sp)
+ cfi_ld $1, PT_R1, \docfi
.set pop
.endm
- .macro RESTORE_TEMP
+ .macro RESTORE_TEMP docfi=0
#ifdef CONFIG_CPU_CAVIUM_OCTEON
/* Restore the Octeon multiplier state */
jal octeon_mult_restore
@@ -265,33 +321,37 @@
mthi $24
#endif
#ifdef CONFIG_32BIT
- LONG_L $8, PT_R8(sp)
- LONG_L $9, PT_R9(sp)
+ cfi_ld $8, PT_R8, \docfi
+ cfi_ld $9, PT_R9, \docfi
#endif
- LONG_L $10, PT_R10(sp)
- LONG_L $11, PT_R11(sp)
- LONG_L $12, PT_R12(sp)
- LONG_L $13, PT_R13(sp)
- LONG_L $14, PT_R14(sp)
- LONG_L $15, PT_R15(sp)
- LONG_L $24, PT_R24(sp)
+ cfi_ld $10, PT_R10, \docfi
+ cfi_ld $11, PT_R11, \docfi
+ cfi_ld $12, PT_R12, \docfi
+ cfi_ld $13, PT_R13, \docfi
+ cfi_ld $14, PT_R14, \docfi
+ cfi_ld $15, PT_R15, \docfi
+ cfi_ld $24, PT_R24, \docfi
.endm
- .macro RESTORE_STATIC
- LONG_L $16, PT_R16(sp)
- LONG_L $17, PT_R17(sp)
- LONG_L $18, PT_R18(sp)
- LONG_L $19, PT_R19(sp)
- LONG_L $20, PT_R20(sp)
- LONG_L $21, PT_R21(sp)
- LONG_L $22, PT_R22(sp)
- LONG_L $23, PT_R23(sp)
- LONG_L $30, PT_R30(sp)
+ .macro RESTORE_STATIC docfi=0
+ cfi_ld $16, PT_R16, \docfi
+ cfi_ld $17, PT_R17, \docfi
+ cfi_ld $18, PT_R18, \docfi
+ cfi_ld $19, PT_R19, \docfi
+ cfi_ld $20, PT_R20, \docfi
+ cfi_ld $21, PT_R21, \docfi
+ cfi_ld $22, PT_R22, \docfi
+ cfi_ld $23, PT_R23, \docfi
+ cfi_ld $30, PT_R30, \docfi
+ .endm
+
+ .macro RESTORE_SP docfi=0
+ cfi_ld sp, PT_R29, \docfi
.endm
#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
- .macro RESTORE_SOME
+ .macro RESTORE_SOME docfi=0
.set push
.set reorder
.set noat
@@ -306,30 +366,30 @@
and v0, v1
or v0, a0
mtc0 v0, CP0_STATUS
- LONG_L $31, PT_R31(sp)
- LONG_L $28, PT_R28(sp)
- LONG_L $25, PT_R25(sp)
- LONG_L $7, PT_R7(sp)
- LONG_L $6, PT_R6(sp)
- LONG_L $5, PT_R5(sp)
- LONG_L $4, PT_R4(sp)
- LONG_L $3, PT_R3(sp)
- LONG_L $2, PT_R2(sp)
+ cfi_ld $31, PT_R31, \docfi
+ cfi_ld $28, PT_R28, \docfi
+ cfi_ld $25, PT_R25, \docfi
+ cfi_ld $7, PT_R7, \docfi
+ cfi_ld $6, PT_R6, \docfi
+ cfi_ld $5, PT_R5, \docfi
+ cfi_ld $4, PT_R4, \docfi
+ cfi_ld $3, PT_R3, \docfi
+ cfi_ld $2, PT_R2, \docfi
.set pop
.endm
- .macro RESTORE_SP_AND_RET
+ .macro RESTORE_SP_AND_RET docfi=0
.set push
.set noreorder
LONG_L k0, PT_EPC(sp)
- LONG_L sp, PT_R29(sp)
+ RESTORE_SP \docfi
jr k0
rfe
.set pop
.endm
#else
- .macro RESTORE_SOME
+ .macro RESTORE_SOME docfi=0
.set push
.set reorder
.set noat
@@ -346,24 +406,24 @@
mtc0 v0, CP0_STATUS
LONG_L v1, PT_EPC(sp)
MTC0 v1, CP0_EPC
- LONG_L $31, PT_R31(sp)
- LONG_L $28, PT_R28(sp)
- LONG_L $25, PT_R25(sp)
+ cfi_ld $31, PT_R31, \docfi
+ cfi_ld $28, PT_R28, \docfi
+ cfi_ld $25, PT_R25, \docfi
#ifdef CONFIG_64BIT
- LONG_L $8, PT_R8(sp)
- LONG_L $9, PT_R9(sp)
+ cfi_ld $8, PT_R8, \docfi
+ cfi_ld $9, PT_R9, \docfi
#endif
- LONG_L $7, PT_R7(sp)
- LONG_L $6, PT_R6(sp)
- LONG_L $5, PT_R5(sp)
- LONG_L $4, PT_R4(sp)
- LONG_L $3, PT_R3(sp)
- LONG_L $2, PT_R2(sp)
+ cfi_ld $7, PT_R7, \docfi
+ cfi_ld $6, PT_R6, \docfi
+ cfi_ld $5, PT_R5, \docfi
+ cfi_ld $4, PT_R4, \docfi
+ cfi_ld $3, PT_R3, \docfi
+ cfi_ld $2, PT_R2, \docfi
.set pop
.endm
- .macro RESTORE_SP_AND_RET
- LONG_L sp, PT_R29(sp)
+ .macro RESTORE_SP_AND_RET docfi=0
+ RESTORE_SP \docfi
#ifdef CONFIG_CPU_MIPSR6
eretnc
#else
@@ -375,16 +435,12 @@
#endif
- .macro RESTORE_SP
- LONG_L sp, PT_R29(sp)
- .endm
-
- .macro RESTORE_ALL
- RESTORE_TEMP
- RESTORE_STATIC
- RESTORE_AT
- RESTORE_SOME
- RESTORE_SP
+ .macro RESTORE_ALL docfi=0
+ RESTORE_TEMP \docfi
+ RESTORE_STATIC \docfi
+ RESTORE_AT \docfi
+ RESTORE_SOME \docfi
+ RESTORE_SP \docfi
.endm
/*
diff --git a/arch/mips/include/asm/stacktrace.h b/arch/mips/include/asm/stacktrace.h
index 780ee2c2a2ac..10c4e9c84448 100644
--- a/arch/mips/include/asm/stacktrace.h
+++ b/arch/mips/include/asm/stacktrace.h
@@ -2,6 +2,8 @@
#define _ASM_STACKTRACE_H
#include <asm/ptrace.h>
+#include <asm/asm.h>
+#include <linux/stringify.h>
#ifdef CONFIG_KALLSYMS
extern int raw_show_trace;
@@ -20,6 +22,14 @@ static inline unsigned long unwind_stack(struct task_struct *task,
}
#endif
+#define STR_PTR_LA __stringify(PTR_LA)
+#define STR_LONG_S __stringify(LONG_S)
+#define STR_LONG_L __stringify(LONG_L)
+#define STR_LONGSIZE __stringify(LONGSIZE)
+
+#define STORE_ONE_REG(r) \
+ STR_LONG_S " $" __stringify(r)",("STR_LONGSIZE"*"__stringify(r)")(%1)\n\t"
+
static __always_inline void prepare_frametrace(struct pt_regs *regs)
{
#ifndef CONFIG_KALLSYMS
@@ -32,21 +42,47 @@ static __always_inline void prepare_frametrace(struct pt_regs *regs)
__asm__ __volatile__(
".set push\n\t"
".set noat\n\t"
-#ifdef CONFIG_64BIT
- "1: dla $1, 1b\n\t"
- "sd $1, %0\n\t"
- "sd $29, %1\n\t"
- "sd $31, %2\n\t"
-#else
- "1: la $1, 1b\n\t"
- "sw $1, %0\n\t"
- "sw $29, %1\n\t"
- "sw $31, %2\n\t"
-#endif
+ /* Store $1 so we can use it */
+ STR_LONG_S " $1,"STR_LONGSIZE"(%1)\n\t"
+ /* Store the PC */
+ "1: " STR_PTR_LA " $1, 1b\n\t"
+ STR_LONG_S " $1,%0\n\t"
+ STORE_ONE_REG(2)
+ STORE_ONE_REG(3)
+ STORE_ONE_REG(4)
+ STORE_ONE_REG(5)
+ STORE_ONE_REG(6)
+ STORE_ONE_REG(7)
+ STORE_ONE_REG(8)
+ STORE_ONE_REG(9)
+ STORE_ONE_REG(10)
+ STORE_ONE_REG(11)
+ STORE_ONE_REG(12)
+ STORE_ONE_REG(13)
+ STORE_ONE_REG(14)
+ STORE_ONE_REG(15)
+ STORE_ONE_REG(16)
+ STORE_ONE_REG(17)
+ STORE_ONE_REG(18)
+ STORE_ONE_REG(19)
+ STORE_ONE_REG(20)
+ STORE_ONE_REG(21)
+ STORE_ONE_REG(22)
+ STORE_ONE_REG(23)
+ STORE_ONE_REG(24)
+ STORE_ONE_REG(25)
+ STORE_ONE_REG(26)
+ STORE_ONE_REG(27)
+ STORE_ONE_REG(28)
+ STORE_ONE_REG(29)
+ STORE_ONE_REG(30)
+ STORE_ONE_REG(31)
+ /* Restore $1 */
+ STR_LONG_L " $1,"STR_LONGSIZE"(%1)\n\t"
".set pop\n\t"
- : "=m" (regs->cp0_epc),
- "=m" (regs->regs[29]), "=m" (regs->regs[31])
- : : "memory");
+ : "=m" (regs->cp0_epc)
+ : "r" (regs->regs)
+ : "memory");
}
#endif /* _ASM_STACKTRACE_H */
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index d87882513ee3..7c713025b23f 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -85,7 +85,7 @@ static inline void syscall_set_return_value(struct task_struct *task,
{
if (error) {
regs->regs[2] = -error;
- regs->regs[7] = -1;
+ regs->regs[7] = 1;
} else {
regs->regs[2] = val;
regs->regs[7] = 0;
diff --git a/arch/mips/include/asm/topology.h b/arch/mips/include/asm/topology.h
index 7afda4150a59..0673d2d0f2e6 100644
--- a/arch/mips/include/asm/topology.h
+++ b/arch/mips/include/asm/topology.h
@@ -13,7 +13,7 @@
#ifdef CONFIG_SMP
#define topology_physical_package_id(cpu) (cpu_data[cpu].package)
-#define topology_core_id(cpu) (cpu_data[cpu].core)
+#define topology_core_id(cpu) (cpu_core(&cpu_data[cpu]))
#define topology_core_cpumask(cpu) (&cpu_core_map[cpu])
#define topology_sibling_cpumask(cpu) (&cpu_sibling_map[cpu])
#endif
diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h
index 99e629a590a5..b71306947290 100644
--- a/arch/mips/include/asm/uaccess.h
+++ b/arch/mips/include/asm/uaccess.h
@@ -497,283 +497,6 @@ do { \
extern void __put_user_unknown(void);
/*
- * ul{b,h,w} are macros and there are no equivalent macros for EVA.
- * EVA unaligned access is handled in the ADE exception handler.
- */
-#ifndef CONFIG_EVA
-/*
- * put_user_unaligned: - Write a simple value into user space.
- * @x: Value to copy to user space.
- * @ptr: Destination address, in user space.
- *
- * Context: User context only. This function may sleep if pagefaults are
- * enabled.
- *
- * This macro copies a single simple value from kernel space to user
- * space. It supports simple types like char and int, but not larger
- * data types like structures or arrays.
- *
- * @ptr must have pointer-to-simple-variable type, and @x must be assignable
- * to the result of dereferencing @ptr.
- *
- * Returns zero on success, or -EFAULT on error.
- */
-#define put_user_unaligned(x,ptr) \
- __put_user_unaligned_check((x),(ptr),sizeof(*(ptr)))
-
-/*
- * get_user_unaligned: - Get a simple variable from user space.
- * @x: Variable to store result.
- * @ptr: Source address, in user space.
- *
- * Context: User context only. This function may sleep if pagefaults are
- * enabled.
- *
- * This macro copies a single simple variable from user space to kernel
- * space. It supports simple types like char and int, but not larger
- * data types like structures or arrays.
- *
- * @ptr must have pointer-to-simple-variable type, and the result of
- * dereferencing @ptr must be assignable to @x without a cast.
- *
- * Returns zero on success, or -EFAULT on error.
- * On error, the variable @x is set to zero.
- */
-#define get_user_unaligned(x,ptr) \
- __get_user_unaligned_check((x),(ptr),sizeof(*(ptr)))
-
-/*
- * __put_user_unaligned: - Write a simple value into user space, with less checking.
- * @x: Value to copy to user space.
- * @ptr: Destination address, in user space.
- *
- * Context: User context only. This function may sleep if pagefaults are
- * enabled.
- *
- * This macro copies a single simple value from kernel space to user
- * space. It supports simple types like char and int, but not larger
- * data types like structures or arrays.
- *
- * @ptr must have pointer-to-simple-variable type, and @x must be assignable
- * to the result of dereferencing @ptr.
- *
- * Caller must check the pointer with access_ok() before calling this
- * function.
- *
- * Returns zero on success, or -EFAULT on error.
- */
-#define __put_user_unaligned(x,ptr) \
- __put_user_unaligned_nocheck((x),(ptr),sizeof(*(ptr)))
-
-/*
- * __get_user_unaligned: - Get a simple variable from user space, with less checking.
- * @x: Variable to store result.
- * @ptr: Source address, in user space.
- *
- * Context: User context only. This function may sleep if pagefaults are
- * enabled.
- *
- * This macro copies a single simple variable from user space to kernel
- * space. It supports simple types like char and int, but not larger
- * data types like structures or arrays.
- *
- * @ptr must have pointer-to-simple-variable type, and the result of
- * dereferencing @ptr must be assignable to @x without a cast.
- *
- * Caller must check the pointer with access_ok() before calling this
- * function.
- *
- * Returns zero on success, or -EFAULT on error.
- * On error, the variable @x is set to zero.
- */
-#define __get_user_unaligned(x,ptr) \
- __get_user_unaligned_nocheck((x),(ptr),sizeof(*(ptr)))
-
-/*
- * Yuck. We need two variants, one for 64bit operation and one
- * for 32 bit mode and old iron.
- */
-#ifdef CONFIG_32BIT
-#define __GET_USER_UNALIGNED_DW(val, ptr) \
- __get_user_unaligned_asm_ll32(val, ptr)
-#endif
-#ifdef CONFIG_64BIT
-#define __GET_USER_UNALIGNED_DW(val, ptr) \
- __get_user_unaligned_asm(val, "uld", ptr)
-#endif
-
-extern void __get_user_unaligned_unknown(void);
-
-#define __get_user_unaligned_common(val, size, ptr) \
-do { \
- switch (size) { \
- case 1: __get_data_asm(val, "lb", ptr); break; \
- case 2: __get_data_unaligned_asm(val, "ulh", ptr); break; \
- case 4: __get_data_unaligned_asm(val, "ulw", ptr); break; \
- case 8: __GET_USER_UNALIGNED_DW(val, ptr); break; \
- default: __get_user_unaligned_unknown(); break; \
- } \
-} while (0)
-
-#define __get_user_unaligned_nocheck(x,ptr,size) \
-({ \
- int __gu_err; \
- \
- __get_user_unaligned_common((x), size, ptr); \
- __gu_err; \
-})
-
-#define __get_user_unaligned_check(x,ptr,size) \
-({ \
- int __gu_err = -EFAULT; \
- const __typeof__(*(ptr)) __user * __gu_ptr = (ptr); \
- \
- if (likely(access_ok(VERIFY_READ, __gu_ptr, size))) \
- __get_user_unaligned_common((x), size, __gu_ptr); \
- \
- __gu_err; \
-})
-
-#define __get_data_unaligned_asm(val, insn, addr) \
-{ \
- long __gu_tmp; \
- \
- __asm__ __volatile__( \
- "1: " insn " %1, %3 \n" \
- "2: \n" \
- " .insn \n" \
- " .section .fixup,\"ax\" \n" \
- "3: li %0, %4 \n" \
- " move %1, $0 \n" \
- " j 2b \n" \
- " .previous \n" \
- " .section __ex_table,\"a\" \n" \
- " "__UA_ADDR "\t1b, 3b \n" \
- " "__UA_ADDR "\t1b + 4, 3b \n" \
- " .previous \n" \
- : "=r" (__gu_err), "=r" (__gu_tmp) \
- : "0" (0), "o" (__m(addr)), "i" (-EFAULT)); \
- \
- (val) = (__typeof__(*(addr))) __gu_tmp; \
-}
-
-/*
- * Get a long long 64 using 32 bit registers.
- */
-#define __get_user_unaligned_asm_ll32(val, addr) \
-{ \
- unsigned long long __gu_tmp; \
- \
- __asm__ __volatile__( \
- "1: ulw %1, (%3) \n" \
- "2: ulw %D1, 4(%3) \n" \
- " move %0, $0 \n" \
- "3: \n" \
- " .insn \n" \
- " .section .fixup,\"ax\" \n" \
- "4: li %0, %4 \n" \
- " move %1, $0 \n" \
- " move %D1, $0 \n" \
- " j 3b \n" \
- " .previous \n" \
- " .section __ex_table,\"a\" \n" \
- " " __UA_ADDR " 1b, 4b \n" \
- " " __UA_ADDR " 1b + 4, 4b \n" \
- " " __UA_ADDR " 2b, 4b \n" \
- " " __UA_ADDR " 2b + 4, 4b \n" \
- " .previous \n" \
- : "=r" (__gu_err), "=&r" (__gu_tmp) \
- : "0" (0), "r" (addr), "i" (-EFAULT)); \
- (val) = (__typeof__(*(addr))) __gu_tmp; \
-}
-
-/*
- * Yuck. We need two variants, one for 64bit operation and one
- * for 32 bit mode and old iron.
- */
-#ifdef CONFIG_32BIT
-#define __PUT_USER_UNALIGNED_DW(ptr) __put_user_unaligned_asm_ll32(ptr)
-#endif
-#ifdef CONFIG_64BIT
-#define __PUT_USER_UNALIGNED_DW(ptr) __put_user_unaligned_asm("usd", ptr)
-#endif
-
-#define __put_user_unaligned_common(ptr, size) \
-do { \
- switch (size) { \
- case 1: __put_data_asm("sb", ptr); break; \
- case 2: __put_user_unaligned_asm("ush", ptr); break; \
- case 4: __put_user_unaligned_asm("usw", ptr); break; \
- case 8: __PUT_USER_UNALIGNED_DW(ptr); break; \
- default: __put_user_unaligned_unknown(); break; \
-} while (0)
-
-#define __put_user_unaligned_nocheck(x,ptr,size) \
-({ \
- __typeof__(*(ptr)) __pu_val; \
- int __pu_err = 0; \
- \
- __pu_val = (x); \
- __put_user_unaligned_common(ptr, size); \
- __pu_err; \
-})
-
-#define __put_user_unaligned_check(x,ptr,size) \
-({ \
- __typeof__(*(ptr)) __user *__pu_addr = (ptr); \
- __typeof__(*(ptr)) __pu_val = (x); \
- int __pu_err = -EFAULT; \
- \
- if (likely(access_ok(VERIFY_WRITE, __pu_addr, size))) \
- __put_user_unaligned_common(__pu_addr, size); \
- \
- __pu_err; \
-})
-
-#define __put_user_unaligned_asm(insn, ptr) \
-{ \
- __asm__ __volatile__( \
- "1: " insn " %z2, %3 # __put_user_unaligned_asm\n" \
- "2: \n" \
- " .insn \n" \
- " .section .fixup,\"ax\" \n" \
- "3: li %0, %4 \n" \
- " j 2b \n" \
- " .previous \n" \
- " .section __ex_table,\"a\" \n" \
- " " __UA_ADDR " 1b, 3b \n" \
- " .previous \n" \
- : "=r" (__pu_err) \
- : "0" (0), "Jr" (__pu_val), "o" (__m(ptr)), \
- "i" (-EFAULT)); \
-}
-
-#define __put_user_unaligned_asm_ll32(ptr) \
-{ \
- __asm__ __volatile__( \
- "1: sw %2, (%3) # __put_user_unaligned_asm_ll32 \n" \
- "2: sw %D2, 4(%3) \n" \
- "3: \n" \
- " .insn \n" \
- " .section .fixup,\"ax\" \n" \
- "4: li %0, %4 \n" \
- " j 3b \n" \
- " .previous \n" \
- " .section __ex_table,\"a\" \n" \
- " " __UA_ADDR " 1b, 4b \n" \
- " " __UA_ADDR " 1b + 4, 4b \n" \
- " " __UA_ADDR " 2b, 4b \n" \
- " " __UA_ADDR " 2b + 4, 4b \n" \
- " .previous" \
- : "=r" (__pu_err) \
- : "0" (0), "r" (__pu_val), "r" (ptr), \
- "i" (-EFAULT)); \
-}
-
-extern void __put_user_unaligned_unknown(void);
-#endif
-
-/*
* We're generating jump to subroutines which will be outside the range of
* jump instructions
*/
@@ -967,60 +690,6 @@ __clear_user(void __user *addr, __kernel_size_t size)
__cl_size; \
})
-extern long __strncpy_from_kernel_nocheck_asm(char *__to, const char __user *__from, long __len);
-extern long __strncpy_from_user_nocheck_asm(char *__to, const char __user *__from, long __len);
-
-/*
- * __strncpy_from_user: - Copy a NUL terminated string from userspace, with less checking.
- * @dst: Destination address, in kernel space. This buffer must be at
- * least @count bytes long.
- * @src: Source address, in user space.
- * @count: Maximum number of bytes to copy, including the trailing NUL.
- *
- * Copies a NUL-terminated string from userspace to kernel space.
- * Caller must check the specified block with access_ok() before calling
- * this function.
- *
- * On success, returns the length of the string (not including the trailing
- * NUL).
- *
- * If access to userspace fails, returns -EFAULT (some data may have been
- * copied).
- *
- * If @count is smaller than the length of the string, copies @count bytes
- * and returns @count.
- */
-static inline long
-__strncpy_from_user(char *__to, const char __user *__from, long __len)
-{
- long res;
-
- if (eva_kernel_access()) {
- __asm__ __volatile__(
- "move\t$4, %1\n\t"
- "move\t$5, %2\n\t"
- "move\t$6, %3\n\t"
- __MODULE_JAL(__strncpy_from_kernel_nocheck_asm)
- "move\t%0, $2"
- : "=r" (res)
- : "r" (__to), "r" (__from), "r" (__len)
- : "$2", "$3", "$4", "$5", "$6", __UA_t0, "$31", "memory");
- } else {
- might_fault();
- __asm__ __volatile__(
- "move\t$4, %1\n\t"
- "move\t$5, %2\n\t"
- "move\t$6, %3\n\t"
- __MODULE_JAL(__strncpy_from_user_nocheck_asm)
- "move\t%0, $2"
- : "=r" (res)
- : "r" (__to), "r" (__from), "r" (__len)
- : "$2", "$3", "$4", "$5", "$6", __UA_t0, "$31", "memory");
- }
-
- return res;
-}
-
extern long __strncpy_from_kernel_asm(char *__to, const char __user *__from, long __len);
extern long __strncpy_from_user_asm(char *__to, const char __user *__from, long __len);
@@ -1073,82 +742,6 @@ strncpy_from_user(char *__to, const char __user *__from, long __len)
return res;
}
-extern long __strlen_kernel_asm(const char __user *s);
-extern long __strlen_user_asm(const char __user *s);
-
-/*
- * strlen_user: - Get the size of a string in user space.
- * @str: The string to measure.
- *
- * Context: User context only. This function may sleep if pagefaults are
- * enabled.
- *
- * Get the size of a NUL-terminated string in user space.
- *
- * Returns the size of the string INCLUDING the terminating NUL.
- * On exception, returns 0.
- *
- * If there is a limit on the length of a valid string, you may wish to
- * consider using strnlen_user() instead.
- */
-static inline long strlen_user(const char __user *s)
-{
- long res;
-
- if (eva_kernel_access()) {
- __asm__ __volatile__(
- "move\t$4, %1\n\t"
- __MODULE_JAL(__strlen_kernel_asm)
- "move\t%0, $2"
- : "=r" (res)
- : "r" (s)
- : "$2", "$4", __UA_t0, "$31");
- } else {
- might_fault();
- __asm__ __volatile__(
- "move\t$4, %1\n\t"
- __MODULE_JAL(__strlen_user_asm)
- "move\t%0, $2"
- : "=r" (res)
- : "r" (s)
- : "$2", "$4", __UA_t0, "$31");
- }
-
- return res;
-}
-
-extern long __strnlen_kernel_nocheck_asm(const char __user *s, long n);
-extern long __strnlen_user_nocheck_asm(const char __user *s, long n);
-
-/* Returns: 0 if bad, string length+1 (memory size) of string if ok */
-static inline long __strnlen_user(const char __user *s, long n)
-{
- long res;
-
- if (eva_kernel_access()) {
- __asm__ __volatile__(
- "move\t$4, %1\n\t"
- "move\t$5, %2\n\t"
- __MODULE_JAL(__strnlen_kernel_nocheck_asm)
- "move\t%0, $2"
- : "=r" (res)
- : "r" (s), "r" (n)
- : "$2", "$4", "$5", __UA_t0, "$31");
- } else {
- might_fault();
- __asm__ __volatile__(
- "move\t$4, %1\n\t"
- "move\t$5, %2\n\t"
- __MODULE_JAL(__strnlen_user_nocheck_asm)
- "move\t%0, $2"
- : "=r" (res)
- : "r" (s), "r" (n)
- : "$2", "$4", "$5", __UA_t0, "$31");
- }
-
- return res;
-}
-
extern long __strnlen_kernel_asm(const char __user *s, long n);
extern long __strnlen_user_asm(const char __user *s, long n);
diff --git a/arch/mips/include/asm/uasm.h b/arch/mips/include/asm/uasm.h
index 3748f4d120a5..59dae37f6b8d 100644
--- a/arch/mips/include/asm/uasm.h
+++ b/arch/mips/include/asm/uasm.h
@@ -72,9 +72,12 @@ Ip_u1u2s3(_beq);
Ip_u1u2s3(_beql);
Ip_u1s2(_bgez);
Ip_u1s2(_bgezl);
+Ip_u1s2(_bgtz);
+Ip_u1s2(_blez);
Ip_u1s2(_bltz);
Ip_u1s2(_bltzl);
Ip_u1u2s3(_bne);
+Ip_u1(_break);
Ip_u2s3u1(_cache);
Ip_u1u2(_cfc1);
Ip_u2u1(_cfcmsa);
@@ -82,19 +85,28 @@ Ip_u1u2(_ctc1);
Ip_u2u1(_ctcmsa);
Ip_u2u1s3(_daddiu);
Ip_u3u1u2(_daddu);
+Ip_u1u2(_ddivu);
Ip_u1(_di);
Ip_u2u1msbu3(_dins);
Ip_u2u1msbu3(_dinsm);
+Ip_u2u1msbu3(_dinsu);
Ip_u1u2(_divu);
Ip_u1u2u3(_dmfc0);
Ip_u1u2u3(_dmtc0);
+Ip_u1u2(_dmultu);
Ip_u2u1u3(_drotr);
Ip_u2u1u3(_drotr32);
+Ip_u2u1(_dsbh);
+Ip_u2u1(_dshd);
Ip_u2u1u3(_dsll);
Ip_u2u1u3(_dsll32);
+Ip_u3u2u1(_dsllv);
Ip_u2u1u3(_dsra);
+Ip_u2u1u3(_dsra32);
+Ip_u3u2u1(_dsrav);
Ip_u2u1u3(_dsrl);
Ip_u2u1u3(_dsrl32);
+Ip_u3u2u1(_dsrlv);
Ip_u3u1u2(_dsubu);
Ip_0(_eret);
Ip_u2u1msbu3(_ext);
@@ -104,6 +116,7 @@ Ip_u1(_jal);
Ip_u2u1(_jalr);
Ip_u1(_jr);
Ip_u2s3u1(_lb);
+Ip_u2s3u1(_lbu);
Ip_u2s3u1(_ld);
Ip_u3u1u2(_ldx);
Ip_u2s3u1(_lh);
@@ -112,27 +125,35 @@ Ip_u2s3u1(_ll);
Ip_u2s3u1(_lld);
Ip_u1s2(_lui);
Ip_u2s3u1(_lw);
+Ip_u2s3u1(_lwu);
Ip_u3u1u2(_lwx);
Ip_u1u2u3(_mfc0);
Ip_u1u2u3(_mfhc0);
Ip_u1(_mfhi);
Ip_u1(_mflo);
+Ip_u3u1u2(_movn);
+Ip_u3u1u2(_movz);
Ip_u1u2u3(_mtc0);
Ip_u1u2u3(_mthc0);
Ip_u1(_mthi);
Ip_u1(_mtlo);
Ip_u3u1u2(_mul);
+Ip_u1u2(_multu);
+Ip_u3u1u2(_nor);
Ip_u3u1u2(_or);
Ip_u2u1u3(_ori);
Ip_u2s3u1(_pref);
Ip_0(_rfe);
Ip_u2u1u3(_rotr);
+Ip_u2s3u1(_sb);
Ip_u2s3u1(_sc);
Ip_u2s3u1(_scd);
Ip_u2s3u1(_sd);
+Ip_u2s3u1(_sh);
Ip_u2u1u3(_sll);
Ip_u3u2u1(_sllv);
Ip_s3s1s2(_slt);
+Ip_u2u1s3(_slti);
Ip_u2u1s3(_sltiu);
Ip_u3u1u2(_sltu);
Ip_u2u1u3(_sra);
@@ -248,6 +269,15 @@ static inline void uasm_i_dsrl_safe(u32 **p, unsigned int a1,
uasm_i_dsrl32(p, a1, a2, a3 - 32);
}
+static inline void uasm_i_dsra_safe(u32 **p, unsigned int a1,
+ unsigned int a2, unsigned int a3)
+{
+ if (a3 < 32)
+ uasm_i_dsra(p, a1, a2, a3);
+ else
+ uasm_i_dsra32(p, a1, a2, a3 - 32);
+}
+
/* Handle relocations. */
struct uasm_reloc {
u32 *addr;
diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h
index e55813029d5a..3c09450908aa 100644
--- a/arch/mips/include/asm/unistd.h
+++ b/arch/mips/include/asm/unistd.h
@@ -35,7 +35,6 @@
#define __ARCH_WANT_SYS_GETPGRP
#define __ARCH_WANT_SYS_LLSEEK
#define __ARCH_WANT_SYS_NICE
-#define __ARCH_WANT_SYS_OLD_GETRLIMIT
#define __ARCH_WANT_SYS_OLD_UNAME
#define __ARCH_WANT_SYS_OLDUMOUNT
#define __ARCH_WANT_SYS_SIGPENDING
diff --git a/arch/mips/include/asm/vdso.h b/arch/mips/include/asm/vdso.h
index 8f4ca5dd992b..b7cd6cf77b83 100644
--- a/arch/mips/include/asm/vdso.h
+++ b/arch/mips/include/asm/vdso.h
@@ -79,8 +79,8 @@ union mips_vdso_data {
struct {
u64 xtime_sec;
u64 xtime_nsec;
- u32 wall_to_mono_sec;
- u32 wall_to_mono_nsec;
+ u64 wall_to_mono_sec;
+ u64 wall_to_mono_nsec;
u32 seq_count;
u32 cs_shift;
u8 clock_mode;
diff --git a/arch/mips/include/asm/vga.h b/arch/mips/include/asm/vga.h
index f82c83749a08..975ff51f80c4 100644
--- a/arch/mips/include/asm/vga.h
+++ b/arch/mips/include/asm/vga.h
@@ -6,6 +6,7 @@
#ifndef _ASM_VGA_H
#define _ASM_VGA_H
+#include <linux/string.h>
#include <asm/addrspace.h>
#include <asm/byteorder.h>
@@ -40,9 +41,15 @@ static inline u16 scr_readw(volatile const u16 *addr)
return le16_to_cpu(*addr);
}
+static inline void scr_memsetw(u16 *s, u16 v, unsigned int count)
+{
+ memset16(s, cpu_to_le16(v), count / 2);
+}
+
#define scr_memcpyw(d, s, c) memcpy(d, s, c)
#define scr_memmovew(d, s, c) memmove(d, s, c)
#define VT_BUF_HAVE_MEMCPYW
#define VT_BUF_HAVE_MEMMOVEW
+#define VT_BUF_HAVE_MEMSETW
#endif /* _ASM_VGA_H */
diff --git a/arch/mips/include/asm/yamon-dt.h b/arch/mips/include/asm/yamon-dt.h
new file mode 100644
index 000000000000..485cfe3e45e1
--- /dev/null
+++ b/arch/mips/include/asm/yamon-dt.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2016 Imagination Technologies
+ * Author: Paul Burton <paul.burton@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __MIPS_ASM_YAMON_DT_H__
+#define __MIPS_ASM_YAMON_DT_H__
+
+#include <linux/types.h>
+
+/**
+ * struct yamon_mem_region - Represents a contiguous range of physical RAM.
+ * @start: Start physical address.
+ * @size: Maximum size of region.
+ * @discard: Length of additional memory to discard after the region.
+ */
+struct yamon_mem_region {
+ phys_addr_t start;
+ phys_addr_t size;
+ phys_addr_t discard;
+};
+
+/**
+ * yamon_dt_append_cmdline() - Append YAMON-provided command line to /chosen
+ * @fdt: the FDT blob
+ *
+ * Write the YAMON-provided command line to the bootargs property of the
+ * /chosen node in @fdt.
+ *
+ * Return: 0 on success, else -errno
+ */
+extern __init int yamon_dt_append_cmdline(void *fdt);
+
+/**
+ * yamon_dt_append_memory() - Append YAMON-provided memory info to /memory
+ * @fdt: the FDT blob
+ * @regions: zero size terminated array of physical memory regions
+ *
+ * Generate a /memory node in @fdt based upon memory size information provided
+ * by YAMON in its environment and the @regions array.
+ *
+ * Return: 0 on success, else -errno
+ */
+extern __init int yamon_dt_append_memory(void *fdt,
+ const struct yamon_mem_region *regions);
+
+/**
+ * yamon_dt_serial_config() - Append YAMON-provided serial config to /chosen
+ * @fdt: the FDT blob
+ *
+ * Generate a stdout-path property in the /chosen node of @fdt, based upon
+ * information provided in the YAMON environment about the UART configuration
+ * of the system.
+ *
+ * Return: 0 on success, else -errno
+ */
+extern __init int yamon_dt_serial_config(void *fdt);
+
+#endif /* __MIPS_ASM_YAMON_DT_H__ */
diff --git a/arch/mips/include/uapi/asm/inst.h b/arch/mips/include/uapi/asm/inst.h
index b5e46ae872d3..6abea5183d7c 100644
--- a/arch/mips/include/uapi/asm/inst.h
+++ b/arch/mips/include/uapi/asm/inst.h
@@ -276,12 +276,19 @@ enum lx_func {
*/
enum bshfl_func {
wsbh_op = 0x2,
- dshd_op = 0x5,
seb_op = 0x10,
seh_op = 0x18,
};
/*
+ * DBSHFL opcodes
+ */
+enum dbshfl_func {
+ dsbh_op = 0x2,
+ dshd_op = 0x5,
+};
+
+/*
* MSA minor opcodes.
*/
enum msa_func {
@@ -755,6 +762,16 @@ struct msa_mi10_format { /* MSA MI10 */
;))))))
};
+struct dsp_format { /* SPEC3 DSP format instructions */
+ __BITFIELD_FIELD(unsigned int opcode : 6,
+ __BITFIELD_FIELD(unsigned int base : 5,
+ __BITFIELD_FIELD(unsigned int index : 5,
+ __BITFIELD_FIELD(unsigned int rd : 5,
+ __BITFIELD_FIELD(unsigned int op : 5,
+ __BITFIELD_FIELD(unsigned int func : 6,
+ ;))))))
+};
+
struct spec3_format { /* SPEC3 */
__BITFIELD_FIELD(unsigned int opcode:6,
__BITFIELD_FIELD(unsigned int rs:5,
@@ -964,7 +981,7 @@ struct mm16_r3_format { /* Load from global pointer format */
struct mm16_r5_format { /* Load/store from stack pointer format */
__BITFIELD_FIELD(unsigned int opcode : 6,
__BITFIELD_FIELD(unsigned int rt : 5,
- __BITFIELD_FIELD(signed int simmediate : 5,
+ __BITFIELD_FIELD(unsigned int imm : 5,
__BITFIELD_FIELD(unsigned int : 16, /* Ignored */
;))))
};
@@ -1046,6 +1063,7 @@ union mips_instruction {
struct b_format b_format;
struct ps_format ps_format;
struct v_format v_format;
+ struct dsp_format dsp_format;
struct spec3_format spec3_format;
struct fb_format fb_format;
struct fp0_format fp0_format;
diff --git a/arch/mips/include/uapi/asm/ioctls.h b/arch/mips/include/uapi/asm/ioctls.h
index 740219c2c894..1609cb0907ac 100644
--- a/arch/mips/include/uapi/asm/ioctls.h
+++ b/arch/mips/include/uapi/asm/ioctls.h
@@ -91,6 +91,7 @@
#define TIOCGPKT _IOR('T', 0x38, int) /* Get packet mode state */
#define TIOCGPTLCK _IOR('T', 0x39, int) /* Get Pty lock state */
#define TIOCGEXCL _IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER _IO('T', 0x41) /* Safely open the slave */
/* I hope the range from 0x5480 on is free ... */
#define TIOCSCTTY 0x5480 /* become controlling tty */
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index 655e2fb5395b..da3216007fe0 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -91,20 +91,12 @@
overrides the coredump filter bits */
#define MADV_DODUMP 17 /* Clear the MADV_NODUMP flag */
+#define MADV_WIPEONFORK 18 /* Zero memory on fork, child only */
+#define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK */
+
/* compatibility flags */
#define MAP_FILE 0
-/*
- * When MAP_HUGETLB is set bits [26:31] encode the log2 of the huge page size.
- * This gives us 6 bits, which is enough until someone invents 128 bit address
- * spaces.
- *
- * Assume these are all power of twos.
- * When 0 use the default page size.
- */
-#define MAP_HUGE_SHIFT 26
-#define MAP_HUGE_MASK 0x3f
-
#define PKEY_DISABLE_ACCESS 0x1
#define PKEY_DISABLE_WRITE 0x2
#define PKEY_ACCESS_MASK (PKEY_DISABLE_ACCESS |\
diff --git a/arch/mips/include/uapi/asm/siginfo.h b/arch/mips/include/uapi/asm/siginfo.h
index 8069cf766603..cf6113bbcb98 100644
--- a/arch/mips/include/uapi/asm/siginfo.h
+++ b/arch/mips/include/uapi/asm/siginfo.h
@@ -120,7 +120,7 @@ typedef struct siginfo {
#undef SI_TIMER
#undef SI_MESGQ
#define SI_ASYNCIO -2 /* sent by AIO completion */
-#define SI_TIMER __SI_CODE(__SI_TIMER, -3) /* sent by timer expiration */
-#define SI_MESGQ __SI_CODE(__SI_MESGQ, -4) /* sent by real time mesq state change */
+#define SI_TIMER -3 /* sent by timer expiration */
+#define SI_MESGQ -4 /* sent by real time mesq state change */
#endif /* _UAPI_ASM_SIGINFO_H */
diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h
index 3418ec9c1c50..6c755bc07975 100644
--- a/arch/mips/include/uapi/asm/socket.h
+++ b/arch/mips/include/uapi/asm/socket.h
@@ -116,4 +116,10 @@
#define SO_COOKIE 57
+#define SCM_TIMESTAMPING_PKTINFO 58
+
+#define SO_PEERGROUPS 59
+
+#define SO_ZEROCOPY 60
+
#endif /* _UAPI_ASM_SOCKET_H */
diff --git a/arch/mips/jz4740/Makefile b/arch/mips/jz4740/Makefile
index 39d70bde8cfe..6b9c1f7c31c9 100644
--- a/arch/mips/jz4740/Makefile
+++ b/arch/mips/jz4740/Makefile
@@ -7,8 +7,6 @@
obj-y += prom.o time.o reset.o setup.o \
platform.o timer.o
-obj-$(CONFIG_MACH_JZ4740) += gpio.o
-
CFLAGS_setup.o = -I$(src)/../../../scripts/dtc/libfdt
# board specific support
diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c
index a5bd94b95263..6d7f97552200 100644
--- a/arch/mips/jz4740/board-qi_lb60.c
+++ b/arch/mips/jz4740/board-qi_lb60.c
@@ -22,6 +22,8 @@
#include <linux/input/matrix_keypad.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi_gpio.h>
+#include <linux/pinctrl/machine.h>
+#include <linux/pinctrl/pinconf-generic.h>
#include <linux/power_supply.h>
#include <linux/power/jz4740-battery.h>
#include <linux/power/gpio-charger.h>
@@ -159,7 +161,7 @@ static struct jz_nand_platform_data qi_lb60_nand_pdata = {
static struct gpiod_lookup_table qi_lb60_nand_gpio_table = {
.dev_id = "jz4740-nand.0",
.table = {
- GPIO_LOOKUP("Bank C", 30, "busy", 0),
+ GPIO_LOOKUP("GPIOC", 30, "busy", 0),
{ },
},
};
@@ -421,8 +423,8 @@ static struct platform_device qi_lb60_audio_device = {
static struct gpiod_lookup_table qi_lb60_audio_gpio_table = {
.dev_id = "qi-lb60-audio",
.table = {
- GPIO_LOOKUP("Bank B", 29, "snd", 0),
- GPIO_LOOKUP("Bank D", 4, "amp", 0),
+ GPIO_LOOKUP("GPIOB", 29, "snd", 0),
+ GPIO_LOOKUP("GPIOD", 4, "amp", 0),
{ },
},
};
@@ -447,13 +449,36 @@ static struct platform_device *jz_platform_devices[] __initdata = {
&qi_lb60_audio_device,
};
-static void __init board_gpio_setup(void)
-{
- /* We only need to enable/disable pullup here for pins used in generic
- * drivers. Everything else is done by the drivers themselves. */
- jz_gpio_disable_pullup(QI_LB60_GPIO_SD_VCC_EN_N);
- jz_gpio_disable_pullup(QI_LB60_GPIO_SD_CD);
-}
+static unsigned long pin_cfg_bias_disable[] = {
+ PIN_CONFIG_BIAS_DISABLE,
+};
+
+static struct pinctrl_map pin_map[] __initdata = {
+ /* NAND pin configuration */
+ PIN_MAP_MUX_GROUP_DEFAULT("jz4740-nand",
+ "10010000.jz4740-pinctrl", "nand", "nand-cs1"),
+
+ /* fbdev pin configuration */
+ PIN_MAP_MUX_GROUP("jz4740-fb", PINCTRL_STATE_DEFAULT,
+ "10010000.jz4740-pinctrl", "lcd", "lcd-8bit"),
+ PIN_MAP_MUX_GROUP("jz4740-fb", PINCTRL_STATE_SLEEP,
+ "10010000.jz4740-pinctrl", "lcd", "lcd-no-pins"),
+
+ /* MMC pin configuration */
+ PIN_MAP_MUX_GROUP_DEFAULT("jz4740-mmc.0",
+ "10010000.jz4740-pinctrl", "mmc", "mmc-1bit"),
+ PIN_MAP_MUX_GROUP_DEFAULT("jz4740-mmc.0",
+ "10010000.jz4740-pinctrl", "mmc", "mmc-4bit"),
+ PIN_MAP_CONFIGS_PIN_DEFAULT("jz4740-mmc.0",
+ "10010000.jz4740-pinctrl", "PD0", pin_cfg_bias_disable),
+ PIN_MAP_CONFIGS_PIN_DEFAULT("jz4740-mmc.0",
+ "10010000.jz4740-pinctrl", "PD2", pin_cfg_bias_disable),
+
+ /* PWM pin configuration */
+ PIN_MAP_MUX_GROUP_DEFAULT("jz4740-pwm",
+ "10010000.jz4740-pinctrl", "pwm4", "pwm4"),
+};
+
static int __init qi_lb60_init_platform_devices(void)
{
@@ -469,6 +494,7 @@ static int __init qi_lb60_init_platform_devices(void)
ARRAY_SIZE(qi_lb60_spi_board_info));
pwm_add_table(qi_lb60_pwm_lookup, ARRAY_SIZE(qi_lb60_pwm_lookup));
+ pinctrl_register_mappings(pin_map, ARRAY_SIZE(pin_map));
return platform_add_devices(jz_platform_devices,
ARRAY_SIZE(jz_platform_devices));
@@ -479,8 +505,6 @@ static int __init qi_lb60_board_setup(void)
{
printk(KERN_INFO "Qi Hardware JZ4740 QI LB60 setup\n");
- board_gpio_setup();
-
if (qi_lb60_init_platform_devices())
panic("Failed to initialize platform devices");
diff --git a/arch/mips/jz4740/gpio.c b/arch/mips/jz4740/gpio.c
deleted file mode 100644
index cac1ccde2214..000000000000
--- a/arch/mips/jz4740/gpio.c
+++ /dev/null
@@ -1,519 +0,0 @@
-/*
- * Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de>
- * JZ4740 platform GPIO support
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/export.h>
-#include <linux/init.h>
-
-#include <linux/io.h>
-#include <linux/gpio/driver.h>
-/* FIXME: needed for gpio_request(), try to remove consumer API from driver */
-#include <linux/gpio.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/irqchip/ingenic.h>
-#include <linux/bitops.h>
-
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-
-#include <asm/mach-jz4740/base.h>
-#include <asm/mach-jz4740/gpio.h>
-
-#define JZ4740_GPIO_BASE_A (32*0)
-#define JZ4740_GPIO_BASE_B (32*1)
-#define JZ4740_GPIO_BASE_C (32*2)
-#define JZ4740_GPIO_BASE_D (32*3)
-
-#define JZ4740_GPIO_NUM_A 32
-#define JZ4740_GPIO_NUM_B 32
-#define JZ4740_GPIO_NUM_C 31
-#define JZ4740_GPIO_NUM_D 32
-
-#define JZ4740_IRQ_GPIO_BASE_A (JZ4740_IRQ_GPIO(0) + JZ4740_GPIO_BASE_A)
-#define JZ4740_IRQ_GPIO_BASE_B (JZ4740_IRQ_GPIO(0) + JZ4740_GPIO_BASE_B)
-#define JZ4740_IRQ_GPIO_BASE_C (JZ4740_IRQ_GPIO(0) + JZ4740_GPIO_BASE_C)
-#define JZ4740_IRQ_GPIO_BASE_D (JZ4740_IRQ_GPIO(0) + JZ4740_GPIO_BASE_D)
-
-#define JZ_REG_GPIO_PIN 0x00
-#define JZ_REG_GPIO_DATA 0x10
-#define JZ_REG_GPIO_DATA_SET 0x14
-#define JZ_REG_GPIO_DATA_CLEAR 0x18
-#define JZ_REG_GPIO_MASK 0x20
-#define JZ_REG_GPIO_MASK_SET 0x24
-#define JZ_REG_GPIO_MASK_CLEAR 0x28
-#define JZ_REG_GPIO_PULL 0x30
-#define JZ_REG_GPIO_PULL_SET 0x34
-#define JZ_REG_GPIO_PULL_CLEAR 0x38
-#define JZ_REG_GPIO_FUNC 0x40
-#define JZ_REG_GPIO_FUNC_SET 0x44
-#define JZ_REG_GPIO_FUNC_CLEAR 0x48
-#define JZ_REG_GPIO_SELECT 0x50
-#define JZ_REG_GPIO_SELECT_SET 0x54
-#define JZ_REG_GPIO_SELECT_CLEAR 0x58
-#define JZ_REG_GPIO_DIRECTION 0x60
-#define JZ_REG_GPIO_DIRECTION_SET 0x64
-#define JZ_REG_GPIO_DIRECTION_CLEAR 0x68
-#define JZ_REG_GPIO_TRIGGER 0x70
-#define JZ_REG_GPIO_TRIGGER_SET 0x74
-#define JZ_REG_GPIO_TRIGGER_CLEAR 0x78
-#define JZ_REG_GPIO_FLAG 0x80
-#define JZ_REG_GPIO_FLAG_CLEAR 0x14
-
-#define GPIO_TO_BIT(gpio) BIT(gpio & 0x1f)
-#define GPIO_TO_REG(gpio, reg) (gpio_to_jz_gpio_chip(gpio)->base + (reg))
-#define CHIP_TO_REG(chip, reg) (gpio_chip_to_jz_gpio_chip(chip)->base + (reg))
-
-struct jz_gpio_chip {
- unsigned int irq;
- unsigned int irq_base;
- uint32_t edge_trigger_both;
-
- void __iomem *base;
-
- struct gpio_chip gpio_chip;
-};
-
-static struct jz_gpio_chip jz4740_gpio_chips[];
-
-static inline struct jz_gpio_chip *gpio_to_jz_gpio_chip(unsigned int gpio)
-{
- return &jz4740_gpio_chips[gpio >> 5];
-}
-
-static inline struct jz_gpio_chip *gpio_chip_to_jz_gpio_chip(struct gpio_chip *gc)
-{
- return gpiochip_get_data(gc);
-}
-
-static inline struct jz_gpio_chip *irq_to_jz_gpio_chip(struct irq_data *data)
-{
- struct irq_chip_generic *gc = irq_data_get_irq_chip_data(data);
- return gc->private;
-}
-
-static inline void jz_gpio_write_bit(unsigned int gpio, unsigned int reg)
-{
- writel(GPIO_TO_BIT(gpio), GPIO_TO_REG(gpio, reg));
-}
-
-int jz_gpio_set_function(int gpio, enum jz_gpio_function function)
-{
- if (function == JZ_GPIO_FUNC_NONE) {
- jz_gpio_write_bit(gpio, JZ_REG_GPIO_FUNC_CLEAR);
- jz_gpio_write_bit(gpio, JZ_REG_GPIO_SELECT_CLEAR);
- jz_gpio_write_bit(gpio, JZ_REG_GPIO_TRIGGER_CLEAR);
- } else {
- jz_gpio_write_bit(gpio, JZ_REG_GPIO_FUNC_SET);
- jz_gpio_write_bit(gpio, JZ_REG_GPIO_TRIGGER_CLEAR);
- switch (function) {
- case JZ_GPIO_FUNC1:
- jz_gpio_write_bit(gpio, JZ_REG_GPIO_SELECT_CLEAR);
- break;
- case JZ_GPIO_FUNC3:
- jz_gpio_write_bit(gpio, JZ_REG_GPIO_TRIGGER_SET);
- case JZ_GPIO_FUNC2: /* Falltrough */
- jz_gpio_write_bit(gpio, JZ_REG_GPIO_SELECT_SET);
- break;
- default:
- BUG();
- break;
- }
- }
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(jz_gpio_set_function);
-
-int jz_gpio_bulk_request(const struct jz_gpio_bulk_request *request, size_t num)
-{
- size_t i;
- int ret;
-
- for (i = 0; i < num; ++i, ++request) {
- ret = gpio_request(request->gpio, request->name);
- if (ret)
- goto err;
- jz_gpio_set_function(request->gpio, request->function);
- }
-
- return 0;
-
-err:
- for (--request; i > 0; --i, --request) {
- gpio_free(request->gpio);
- jz_gpio_set_function(request->gpio, JZ_GPIO_FUNC_NONE);
- }
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(jz_gpio_bulk_request);
-
-void jz_gpio_bulk_free(const struct jz_gpio_bulk_request *request, size_t num)
-{
- size_t i;
-
- for (i = 0; i < num; ++i, ++request) {
- gpio_free(request->gpio);
- jz_gpio_set_function(request->gpio, JZ_GPIO_FUNC_NONE);
- }
-
-}
-EXPORT_SYMBOL_GPL(jz_gpio_bulk_free);
-
-void jz_gpio_bulk_suspend(const struct jz_gpio_bulk_request *request, size_t num)
-{
- size_t i;
-
- for (i = 0; i < num; ++i, ++request) {
- jz_gpio_set_function(request->gpio, JZ_GPIO_FUNC_NONE);
- jz_gpio_write_bit(request->gpio, JZ_REG_GPIO_DIRECTION_CLEAR);
- jz_gpio_write_bit(request->gpio, JZ_REG_GPIO_PULL_SET);
- }
-}
-EXPORT_SYMBOL_GPL(jz_gpio_bulk_suspend);
-
-void jz_gpio_bulk_resume(const struct jz_gpio_bulk_request *request, size_t num)
-{
- size_t i;
-
- for (i = 0; i < num; ++i, ++request)
- jz_gpio_set_function(request->gpio, request->function);
-}
-EXPORT_SYMBOL_GPL(jz_gpio_bulk_resume);
-
-void jz_gpio_enable_pullup(unsigned gpio)
-{
- jz_gpio_write_bit(gpio, JZ_REG_GPIO_PULL_CLEAR);
-}
-EXPORT_SYMBOL_GPL(jz_gpio_enable_pullup);
-
-void jz_gpio_disable_pullup(unsigned gpio)
-{
- jz_gpio_write_bit(gpio, JZ_REG_GPIO_PULL_SET);
-}
-EXPORT_SYMBOL_GPL(jz_gpio_disable_pullup);
-
-static int jz_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
-{
- return !!(readl(CHIP_TO_REG(chip, JZ_REG_GPIO_PIN)) & BIT(gpio));
-}
-
-static void jz_gpio_set_value(struct gpio_chip *chip, unsigned gpio, int value)
-{
- uint32_t __iomem *reg = CHIP_TO_REG(chip, JZ_REG_GPIO_DATA_SET);
- reg += !value;
- writel(BIT(gpio), reg);
-}
-
-static int jz_gpio_direction_output(struct gpio_chip *chip, unsigned gpio,
- int value)
-{
- writel(BIT(gpio), CHIP_TO_REG(chip, JZ_REG_GPIO_DIRECTION_SET));
- jz_gpio_set_value(chip, gpio, value);
-
- return 0;
-}
-
-static int jz_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
-{
- writel(BIT(gpio), CHIP_TO_REG(chip, JZ_REG_GPIO_DIRECTION_CLEAR));
-
- return 0;
-}
-
-static int jz_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
-{
- struct jz_gpio_chip *jz_gpio = gpiochip_get_data(chip);
-
- return jz_gpio->irq_base + gpio;
-}
-
-int jz_gpio_port_direction_input(int port, uint32_t mask)
-{
- writel(mask, GPIO_TO_REG(port, JZ_REG_GPIO_DIRECTION_CLEAR));
-
- return 0;
-}
-EXPORT_SYMBOL(jz_gpio_port_direction_input);
-
-int jz_gpio_port_direction_output(int port, uint32_t mask)
-{
- writel(mask, GPIO_TO_REG(port, JZ_REG_GPIO_DIRECTION_SET));
-
- return 0;
-}
-EXPORT_SYMBOL(jz_gpio_port_direction_output);
-
-void jz_gpio_port_set_value(int port, uint32_t value, uint32_t mask)
-{
- writel(~value & mask, GPIO_TO_REG(port, JZ_REG_GPIO_DATA_CLEAR));
- writel(value & mask, GPIO_TO_REG(port, JZ_REG_GPIO_DATA_SET));
-}
-EXPORT_SYMBOL(jz_gpio_port_set_value);
-
-uint32_t jz_gpio_port_get_value(int port, uint32_t mask)
-{
- uint32_t value = readl(GPIO_TO_REG(port, JZ_REG_GPIO_PIN));
-
- return value & mask;
-}
-EXPORT_SYMBOL(jz_gpio_port_get_value);
-
-#define IRQ_TO_BIT(irq) BIT((irq - JZ4740_IRQ_GPIO(0)) & 0x1f)
-
-static void jz_gpio_check_trigger_both(struct jz_gpio_chip *chip, unsigned int irq)
-{
- uint32_t value;
- void __iomem *reg;
- uint32_t mask = IRQ_TO_BIT(irq);
-
- if (!(chip->edge_trigger_both & mask))
- return;
-
- reg = chip->base;
-
- value = readl(chip->base + JZ_REG_GPIO_PIN);
- if (value & mask)
- reg += JZ_REG_GPIO_DIRECTION_CLEAR;
- else
- reg += JZ_REG_GPIO_DIRECTION_SET;
-
- writel(mask, reg);
-}
-
-static void jz_gpio_irq_demux_handler(struct irq_desc *desc)
-{
- uint32_t flag;
- unsigned int gpio_irq;
- struct jz_gpio_chip *chip = irq_desc_get_handler_data(desc);
-
- flag = readl(chip->base + JZ_REG_GPIO_FLAG);
- if (!flag)
- return;
-
- gpio_irq = chip->irq_base + __fls(flag);
-
- jz_gpio_check_trigger_both(chip, gpio_irq);
-
- generic_handle_irq(gpio_irq);
-};
-
-static inline void jz_gpio_set_irq_bit(struct irq_data *data, unsigned int reg)
-{
- struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(data);
- writel(IRQ_TO_BIT(data->irq), chip->base + reg);
-}
-
-static void jz_gpio_irq_unmask(struct irq_data *data)
-{
- struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(data);
-
- jz_gpio_check_trigger_both(chip, data->irq);
- irq_gc_unmask_enable_reg(data);
-};
-
-/* TODO: Check if function is gpio */
-static unsigned int jz_gpio_irq_startup(struct irq_data *data)
-{
- jz_gpio_set_irq_bit(data, JZ_REG_GPIO_SELECT_SET);
- jz_gpio_irq_unmask(data);
- return 0;
-}
-
-static void jz_gpio_irq_shutdown(struct irq_data *data)
-{
- irq_gc_mask_disable_reg(data);
-
- /* Set direction to input */
- jz_gpio_set_irq_bit(data, JZ_REG_GPIO_DIRECTION_CLEAR);
- jz_gpio_set_irq_bit(data, JZ_REG_GPIO_SELECT_CLEAR);
-}
-
-static int jz_gpio_irq_set_type(struct irq_data *data, unsigned int flow_type)
-{
- struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(data);
- unsigned int irq = data->irq;
-
- if (flow_type == IRQ_TYPE_EDGE_BOTH) {
- uint32_t value = readl(chip->base + JZ_REG_GPIO_PIN);
- if (value & IRQ_TO_BIT(irq))
- flow_type = IRQ_TYPE_EDGE_FALLING;
- else
- flow_type = IRQ_TYPE_EDGE_RISING;
- chip->edge_trigger_both |= IRQ_TO_BIT(irq);
- } else {
- chip->edge_trigger_both &= ~IRQ_TO_BIT(irq);
- }
-
- switch (flow_type) {
- case IRQ_TYPE_EDGE_RISING:
- jz_gpio_set_irq_bit(data, JZ_REG_GPIO_DIRECTION_SET);
- jz_gpio_set_irq_bit(data, JZ_REG_GPIO_TRIGGER_SET);
- break;
- case IRQ_TYPE_EDGE_FALLING:
- jz_gpio_set_irq_bit(data, JZ_REG_GPIO_DIRECTION_CLEAR);
- jz_gpio_set_irq_bit(data, JZ_REG_GPIO_TRIGGER_SET);
- break;
- case IRQ_TYPE_LEVEL_HIGH:
- jz_gpio_set_irq_bit(data, JZ_REG_GPIO_DIRECTION_SET);
- jz_gpio_set_irq_bit(data, JZ_REG_GPIO_TRIGGER_CLEAR);
- break;
- case IRQ_TYPE_LEVEL_LOW:
- jz_gpio_set_irq_bit(data, JZ_REG_GPIO_DIRECTION_CLEAR);
- jz_gpio_set_irq_bit(data, JZ_REG_GPIO_TRIGGER_CLEAR);
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int jz_gpio_irq_set_wake(struct irq_data *data, unsigned int on)
-{
- struct jz_gpio_chip *chip = irq_to_jz_gpio_chip(data);
-
- irq_gc_set_wake(data, on);
- irq_set_irq_wake(chip->irq, on);
-
- return 0;
-}
-
-#define JZ4740_GPIO_CHIP(_bank) { \
- .irq_base = JZ4740_IRQ_GPIO_BASE_ ## _bank, \
- .gpio_chip = { \
- .label = "Bank " # _bank, \
- .owner = THIS_MODULE, \
- .set = jz_gpio_set_value, \
- .get = jz_gpio_get_value, \
- .direction_output = jz_gpio_direction_output, \
- .direction_input = jz_gpio_direction_input, \
- .to_irq = jz_gpio_to_irq, \
- .base = JZ4740_GPIO_BASE_ ## _bank, \
- .ngpio = JZ4740_GPIO_NUM_ ## _bank, \
- }, \
-}
-
-static struct jz_gpio_chip jz4740_gpio_chips[] = {
- JZ4740_GPIO_CHIP(A),
- JZ4740_GPIO_CHIP(B),
- JZ4740_GPIO_CHIP(C),
- JZ4740_GPIO_CHIP(D),
-};
-
-static void jz4740_gpio_chip_init(struct jz_gpio_chip *chip, unsigned int id)
-{
- struct irq_chip_generic *gc;
- struct irq_chip_type *ct;
-
- chip->base = ioremap(JZ4740_GPIO_BASE_ADDR + (id * 0x100), 0x100);
-
- chip->irq = JZ4740_IRQ_INTC_GPIO(id);
- irq_set_chained_handler_and_data(chip->irq,
- jz_gpio_irq_demux_handler, chip);
-
- gc = irq_alloc_generic_chip(chip->gpio_chip.label, 1, chip->irq_base,
- chip->base, handle_level_irq);
-
- gc->wake_enabled = IRQ_MSK(chip->gpio_chip.ngpio);
- gc->private = chip;
-
- ct = gc->chip_types;
- ct->regs.enable = JZ_REG_GPIO_MASK_CLEAR;
- ct->regs.disable = JZ_REG_GPIO_MASK_SET;
- ct->regs.ack = JZ_REG_GPIO_FLAG_CLEAR;
-
- ct->chip.name = "GPIO";
- ct->chip.irq_mask = irq_gc_mask_disable_reg;
- ct->chip.irq_unmask = jz_gpio_irq_unmask;
- ct->chip.irq_ack = irq_gc_ack_set_bit;
- ct->chip.irq_suspend = ingenic_intc_irq_suspend;
- ct->chip.irq_resume = ingenic_intc_irq_resume;
- ct->chip.irq_startup = jz_gpio_irq_startup;
- ct->chip.irq_shutdown = jz_gpio_irq_shutdown;
- ct->chip.irq_set_type = jz_gpio_irq_set_type;
- ct->chip.irq_set_wake = jz_gpio_irq_set_wake;
- ct->chip.flags = IRQCHIP_SET_TYPE_MASKED;
-
- irq_setup_generic_chip(gc, IRQ_MSK(chip->gpio_chip.ngpio),
- IRQ_GC_INIT_NESTED_LOCK, 0, IRQ_NOPROBE | IRQ_LEVEL);
-
- gpiochip_add_data(&chip->gpio_chip, chip);
-}
-
-static int __init jz4740_gpio_init(void)
-{
- unsigned int i;
-
- for (i = 0; i < ARRAY_SIZE(jz4740_gpio_chips); ++i)
- jz4740_gpio_chip_init(&jz4740_gpio_chips[i], i);
-
- printk(KERN_INFO "JZ4740 GPIO initialized\n");
-
- return 0;
-}
-arch_initcall(jz4740_gpio_init);
-
-#ifdef CONFIG_DEBUG_FS
-
-static inline void gpio_seq_reg(struct seq_file *s, struct jz_gpio_chip *chip,
- const char *name, unsigned int reg)
-{
- seq_printf(s, "\t%s: %08x\n", name, readl(chip->base + reg));
-}
-
-static int gpio_regs_show(struct seq_file *s, void *unused)
-{
- struct jz_gpio_chip *chip = jz4740_gpio_chips;
- int i;
-
- for (i = 0; i < ARRAY_SIZE(jz4740_gpio_chips); ++i, ++chip) {
- seq_printf(s, "==GPIO %d==\n", i);
- gpio_seq_reg(s, chip, "Pin", JZ_REG_GPIO_PIN);
- gpio_seq_reg(s, chip, "Data", JZ_REG_GPIO_DATA);
- gpio_seq_reg(s, chip, "Mask", JZ_REG_GPIO_MASK);
- gpio_seq_reg(s, chip, "Pull", JZ_REG_GPIO_PULL);
- gpio_seq_reg(s, chip, "Func", JZ_REG_GPIO_FUNC);
- gpio_seq_reg(s, chip, "Select", JZ_REG_GPIO_SELECT);
- gpio_seq_reg(s, chip, "Direction", JZ_REG_GPIO_DIRECTION);
- gpio_seq_reg(s, chip, "Trigger", JZ_REG_GPIO_TRIGGER);
- gpio_seq_reg(s, chip, "Flag", JZ_REG_GPIO_FLAG);
- }
-
- return 0;
-}
-
-static int gpio_regs_open(struct inode *inode, struct file *file)
-{
- return single_open(file, gpio_regs_show, NULL);
-}
-
-static const struct file_operations gpio_regs_operations = {
- .open = gpio_regs_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static int __init gpio_debugfs_init(void)
-{
- (void) debugfs_create_file("jz_regs_gpio", S_IFREG | S_IRUGO,
- NULL, NULL, &gpio_regs_operations);
- return 0;
-}
-subsys_initcall(gpio_debugfs_init);
-
-#endif
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index 9a0e37b92ce0..07f0f4a4b562 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -4,7 +4,7 @@
extra-y := head.o vmlinux.lds
-obj-y += cpu-probe.o branch.o elf.o entry.o genex.o idle.o irq.o \
+obj-y += cmpxchg.o cpu-probe.o branch.o elf.o entry.o genex.o idle.o irq.o \
process.o prom.o ptrace.o reset.o setup.o signal.o \
syscall.o time.o topology.o traps.o unaligned.o watch.o \
vdso.o cacheinfo.o
@@ -31,16 +31,19 @@ obj-$(CONFIG_SYNC_R4K) += sync-r4k.o
obj-$(CONFIG_DEBUG_FS) += segment.o
obj-$(CONFIG_STACKTRACE) += stacktrace.o
obj-$(CONFIG_MODULES) += module.o
-obj-$(CONFIG_MODULES_USE_ELF_RELA) += module-rela.o
obj-$(CONFIG_FTRACE_SYSCALLS) += ftrace.o
obj-$(CONFIG_FUNCTION_TRACER) += mcount.o ftrace.o
-obj-$(CONFIG_CPU_R4K_FPU) += r4k_fpu.o r4k_switch.o
-obj-$(CONFIG_CPU_R3000) += r2300_fpu.o r2300_switch.o
-obj-$(CONFIG_CPU_R6000) += r6000_fpu.o r4k_switch.o
-obj-$(CONFIG_CPU_TX39XX) += r2300_fpu.o r2300_switch.o
-obj-$(CONFIG_CPU_CAVIUM_OCTEON) += r4k_fpu.o octeon_switch.o
+sw-y := r4k_switch.o
+sw-$(CONFIG_CPU_R3000) := r2300_switch.o
+sw-$(CONFIG_CPU_TX39XX) := r2300_switch.o
+sw-$(CONFIG_CPU_CAVIUM_OCTEON) := octeon_switch.o
+obj-y += $(sw-y)
+
+obj-$(CONFIG_CPU_R4K_FPU) += r4k_fpu.o
+obj-$(CONFIG_CPU_R3000) += r2300_fpu.o
+obj-$(CONFIG_CPU_TX39XX) += r2300_fpu.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_SMP_UP) += smp-up.o
diff --git a/arch/mips/kernel/branch.c b/arch/mips/kernel/branch.c
index f702a459a830..b79ed9af9886 100644
--- a/arch/mips/kernel/branch.c
+++ b/arch/mips/kernel/branch.c
@@ -399,7 +399,7 @@ int __MIPS16e_compute_return_epc(struct pt_regs *regs)
*
* @regs: Pointer to pt_regs
* @insn: branch instruction to decode
- * @returns: -EFAULT on error and forces SIGBUS, and on success
+ * @returns: -EFAULT on error and forces SIGILL, and on success
* returns 0 or BRANCH_LIKELY_TAKEN as appropriate after
* evaluating the branch.
*
@@ -431,7 +431,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
/* Fall through */
case jr_op:
if (NO_R6EMU && insn.r_format.func == jr_op)
- goto sigill_r6;
+ goto sigill_r2r6;
regs->cp0_epc = regs->regs[insn.r_format.rs];
break;
}
@@ -446,7 +446,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
switch (insn.i_format.rt) {
case bltzl_op:
if (NO_R6EMU)
- goto sigill_r6;
+ goto sigill_r2r6;
case bltz_op:
if ((long)regs->regs[insn.i_format.rs] < 0) {
epc = epc + 4 + (insn.i_format.simmediate << 2);
@@ -459,7 +459,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
case bgezl_op:
if (NO_R6EMU)
- goto sigill_r6;
+ goto sigill_r2r6;
case bgez_op:
if ((long)regs->regs[insn.i_format.rs] >= 0) {
epc = epc + 4 + (insn.i_format.simmediate << 2);
@@ -473,10 +473,8 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
case bltzal_op:
case bltzall_op:
if (NO_R6EMU && (insn.i_format.rs ||
- insn.i_format.rt == bltzall_op)) {
- ret = -SIGILL;
- break;
- }
+ insn.i_format.rt == bltzall_op))
+ goto sigill_r2r6;
regs->regs[31] = epc + 8;
/*
* OK we are here either because we hit a NAL
@@ -507,10 +505,8 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
case bgezal_op:
case bgezall_op:
if (NO_R6EMU && (insn.i_format.rs ||
- insn.i_format.rt == bgezall_op)) {
- ret = -SIGILL;
- break;
- }
+ insn.i_format.rt == bgezall_op))
+ goto sigill_r2r6;
regs->regs[31] = epc + 8;
/*
* OK we are here either because we hit a BAL
@@ -556,6 +552,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
/*
* These are unconditional and in j_format.
*/
+ case jalx_op:
case jal_op:
regs->regs[31] = regs->cp0_epc + 8;
case j_op:
@@ -573,7 +570,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
*/
case beql_op:
if (NO_R6EMU)
- goto sigill_r6;
+ goto sigill_r2r6;
case beq_op:
if (regs->regs[insn.i_format.rs] ==
regs->regs[insn.i_format.rt]) {
@@ -587,7 +584,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
case bnel_op:
if (NO_R6EMU)
- goto sigill_r6;
+ goto sigill_r2r6;
case bne_op:
if (regs->regs[insn.i_format.rs] !=
regs->regs[insn.i_format.rt]) {
@@ -601,7 +598,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
case blezl_op: /* not really i_format */
if (!insn.i_format.rt && NO_R6EMU)
- goto sigill_r6;
+ goto sigill_r2r6;
case blez_op:
/*
* Compact branches for R6 for the
@@ -636,7 +633,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
case bgtzl_op:
if (!insn.i_format.rt && NO_R6EMU)
- goto sigill_r6;
+ goto sigill_r2r6;
case bgtz_op:
/*
* Compact branches for R6 for the
@@ -774,35 +771,27 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
#else
case bc6_op:
/* Only valid for MIPS R6 */
- if (!cpu_has_mips_r6) {
- ret = -SIGILL;
- break;
- }
+ if (!cpu_has_mips_r6)
+ goto sigill_r6;
regs->cp0_epc += 8;
break;
case balc6_op:
- if (!cpu_has_mips_r6) {
- ret = -SIGILL;
- break;
- }
+ if (!cpu_has_mips_r6)
+ goto sigill_r6;
/* Compact branch: BALC */
regs->regs[31] = epc + 4;
epc += 4 + (insn.i_format.simmediate << 2);
regs->cp0_epc = epc;
break;
case pop66_op:
- if (!cpu_has_mips_r6) {
- ret = -SIGILL;
- break;
- }
+ if (!cpu_has_mips_r6)
+ goto sigill_r6;
/* Compact branch: BEQZC || JIC */
regs->cp0_epc += 8;
break;
case pop76_op:
- if (!cpu_has_mips_r6) {
- ret = -SIGILL;
- break;
- }
+ if (!cpu_has_mips_r6)
+ goto sigill_r6;
/* Compact branch: BNEZC || JIALC */
if (!insn.i_format.rs) {
/* JIALC: set $31/ra */
@@ -814,10 +803,8 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
case pop10_op:
case pop30_op:
/* Only valid for MIPS R6 */
- if (!cpu_has_mips_r6) {
- ret = -SIGILL;
- break;
- }
+ if (!cpu_has_mips_r6)
+ goto sigill_r6;
/*
* Compact branches:
* bovc, beqc, beqzalc, bnvc, bnec, bnezlac
@@ -831,12 +818,18 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
return ret;
sigill_dsp:
- printk("%s: DSP branch but not DSP ASE - sending SIGBUS.\n", current->comm);
- force_sig(SIGBUS, current);
+ pr_debug("%s: DSP branch but not DSP ASE - sending SIGILL.\n",
+ current->comm);
+ force_sig(SIGILL, current);
+ return -EFAULT;
+sigill_r2r6:
+ pr_debug("%s: R2 branch but r2-to-r6 emulator is not present - sending SIGILL.\n",
+ current->comm);
+ force_sig(SIGILL, current);
return -EFAULT;
sigill_r6:
- pr_info("%s: R2 branch but r2-to-r6 emulator is not preset - sending SIGILL.\n",
- current->comm);
+ pr_debug("%s: R6 branch but no MIPSr6 ISA support - sending SIGILL.\n",
+ current->comm);
force_sig(SIGILL, current);
return -EFAULT;
}
diff --git a/arch/mips/kernel/cmpxchg.c b/arch/mips/kernel/cmpxchg.c
new file mode 100644
index 000000000000..7730f1d3434f
--- /dev/null
+++ b/arch/mips/kernel/cmpxchg.c
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2017 Imagination Technologies
+ * Author: Paul Burton <paul.burton@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/bitops.h>
+#include <asm/cmpxchg.h>
+
+unsigned long __xchg_small(volatile void *ptr, unsigned long val, unsigned int size)
+{
+ u32 old32, new32, load32, mask;
+ volatile u32 *ptr32;
+ unsigned int shift;
+
+ /* Check that ptr is naturally aligned */
+ WARN_ON((unsigned long)ptr & (size - 1));
+
+ /* Mask value to the correct size. */
+ mask = GENMASK((size * BITS_PER_BYTE) - 1, 0);
+ val &= mask;
+
+ /*
+ * Calculate a shift & mask that correspond to the value we wish to
+ * exchange within the naturally aligned 4 byte integerthat includes
+ * it.
+ */
+ shift = (unsigned long)ptr & 0x3;
+ if (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
+ shift ^= sizeof(u32) - size;
+ shift *= BITS_PER_BYTE;
+ mask <<= shift;
+
+ /*
+ * Calculate a pointer to the naturally aligned 4 byte integer that
+ * includes our byte of interest, and load its value.
+ */
+ ptr32 = (volatile u32 *)((unsigned long)ptr & ~0x3);
+ load32 = *ptr32;
+
+ do {
+ old32 = load32;
+ new32 = (load32 & ~mask) | (val << shift);
+ load32 = cmpxchg(ptr32, old32, new32);
+ } while (load32 != old32);
+
+ return (load32 & mask) >> shift;
+}
+
+unsigned long __cmpxchg_small(volatile void *ptr, unsigned long old,
+ unsigned long new, unsigned int size)
+{
+ u32 mask, old32, new32, load32;
+ volatile u32 *ptr32;
+ unsigned int shift;
+ u8 load;
+
+ /* Check that ptr is naturally aligned */
+ WARN_ON((unsigned long)ptr & (size - 1));
+
+ /* Mask inputs to the correct size. */
+ mask = GENMASK((size * BITS_PER_BYTE) - 1, 0);
+ old &= mask;
+ new &= mask;
+
+ /*
+ * Calculate a shift & mask that correspond to the value we wish to
+ * compare & exchange within the naturally aligned 4 byte integer
+ * that includes it.
+ */
+ shift = (unsigned long)ptr & 0x3;
+ if (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
+ shift ^= sizeof(u32) - size;
+ shift *= BITS_PER_BYTE;
+ mask <<= shift;
+
+ /*
+ * Calculate a pointer to the naturally aligned 4 byte integer that
+ * includes our byte of interest, and load its value.
+ */
+ ptr32 = (volatile u32 *)((unsigned long)ptr & ~0x3);
+ load32 = *ptr32;
+
+ while (true) {
+ /*
+ * Ensure the byte we want to exchange matches the expected
+ * old value, and if not then bail.
+ */
+ load = (load32 & mask) >> shift;
+ if (load != old)
+ return load;
+
+ /*
+ * Calculate the old & new values of the naturally aligned
+ * 4 byte integer that include the byte we want to exchange.
+ * Attempt to exchange the old value for the new value, and
+ * return if we succeed.
+ */
+ old32 = (load32 & ~mask) | (old << shift);
+ new32 = (load32 & ~mask) | (new << shift);
+ load32 = cmpxchg(ptr32, old32, new32);
+ if (load32 == old32)
+ return old;
+ }
+}
diff --git a/arch/mips/kernel/cps-vec.S b/arch/mips/kernel/cps-vec.S
index a00e87b0256d..d173b49f212d 100644
--- a/arch/mips/kernel/cps-vec.S
+++ b/arch/mips/kernel/cps-vec.S
@@ -22,6 +22,7 @@
#define GCR_CL_COHERENCE_OFS 0x2008
#define GCR_CL_ID_OFS 0x2028
+#define CPC_CL_VC_STOP_OFS 0x2020
#define CPC_CL_VC_RUN_OFS 0x2028
.extern mips_cm_base
@@ -326,8 +327,8 @@ LEAF(mips_cps_get_bootcfg)
* to handle contiguous VP numbering, but no such systems yet
* exist.
*/
- mfc0 t9, $3, 1
- andi t9, t9, 0xff
+ mfc0 t9, CP0_GLOBALNUMBER
+ andi t9, t9, MIPS_GLOBALNUMBER_VP
#elif defined(CONFIG_MIPS_MT_SMP)
has_mt ta2, 1f
@@ -376,8 +377,12 @@ LEAF(mips_cps_boot_vpes)
PTR_LI t2, UNCAC_BASE
PTR_ADD t1, t1, t2
- /* Set VC_RUN to the VPE mask */
+ /* Start any other VPs that ought to be running */
PTR_S ta2, CPC_CL_VC_RUN_OFS(t1)
+
+ /* Ensure this VP stops running if it shouldn't be */
+ not ta2
+ PTR_S ta2, CPC_CL_VC_STOP_OFS(t1)
ehb
#elif defined(CONFIG_MIPS_MT)
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 1aba27786bd5..cf3fd549e16d 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -326,7 +326,7 @@ static int __init fpu_disable(char *s)
__setup("nofpu", fpu_disable);
-int mips_dsp_disabled;
+static int mips_dsp_disabled;
static int __init dsp_disable(char *s)
{
@@ -564,6 +564,7 @@ static int set_ftlb_enable(struct cpuinfo_mips *c, enum ftlb_flags flags)
back_to_back_c0_hazard();
break;
case CPU_I6400:
+ case CPU_I6500:
/* There's no way to disable the FTLB */
if (!(flags & FTLB_EN))
return 1;
@@ -844,6 +845,8 @@ static inline unsigned int decode_config5(struct cpuinfo_mips *c)
c->options |= MIPS_CPU_MVH;
if (cpu_has_mips_r6 && (config5 & MIPS_CONF5_VP))
c->options |= MIPS_CPU_VP;
+ if (config5 & MIPS_CONF5_CA2)
+ c->ases |= MIPS_ASE_MIPS16E2;
return config5 & MIPS_CONF_M;
}
@@ -916,9 +919,12 @@ static void decode_configs(struct cpuinfo_mips *c)
#ifndef CONFIG_MIPS_CPS
if (cpu_has_mips_r2_r6) {
- c->core = get_ebase_cpunum();
+ unsigned int core;
+
+ core = get_ebase_cpunum();
if (cpu_has_mipsmt)
- c->core >>= fls(core_nvpes()) - 1;
+ core >>= fls(core_nvpes()) - 1;
+ cpu_set_core(c, core);
}
#endif
}
@@ -1391,24 +1397,6 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
MIPS_CPU_DIVEC | MIPS_CPU_LLSC;
c->tlbsize = 48;
break;
- case PRID_IMP_R6000:
- c->cputype = CPU_R6000;
- __cpu_name[cpu] = "R6000";
- set_isa(c, MIPS_CPU_ISA_II);
- c->fpu_msk31 |= FPU_CSR_CONDX | FPU_CSR_FS;
- c->options = MIPS_CPU_TLB | MIPS_CPU_FPU |
- MIPS_CPU_LLSC;
- c->tlbsize = 32;
- break;
- case PRID_IMP_R6000A:
- c->cputype = CPU_R6000A;
- __cpu_name[cpu] = "R6000A";
- set_isa(c, MIPS_CPU_ISA_II);
- c->fpu_msk31 |= FPU_CSR_CONDX | FPU_CSR_FS;
- c->options = MIPS_CPU_TLB | MIPS_CPU_FPU |
- MIPS_CPU_LLSC;
- c->tlbsize = 32;
- break;
case PRID_IMP_RM7000:
c->cputype = CPU_RM7000;
__cpu_name[cpu] = "RM7000";
@@ -1635,6 +1623,10 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu)
c->cputype = CPU_I6400;
__cpu_name[cpu] = "MIPS I6400";
break;
+ case PRID_IMP_I6500:
+ c->cputype = CPU_I6500;
+ __cpu_name[cpu] = "MIPS I6500";
+ break;
case PRID_IMP_M5150:
c->cputype = CPU_M5150;
__cpu_name[cpu] = "MIPS M5150";
@@ -1648,6 +1640,17 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu)
decode_configs(c);
spram_config();
+
+ switch (__get_cpu_type(c->cputype)) {
+ case CPU_I6500:
+ c->options |= MIPS_CPU_SHARED_FTLB_ENTRIES;
+ /* fall-through */
+ case CPU_I6400:
+ c->options |= MIPS_CPU_SHARED_FTLB_RAM;
+ /* fall-through */
+ default:
+ break;
+ }
}
static inline void cpu_probe_alchemy(struct cpuinfo_mips *c, unsigned int cpu)
@@ -1831,6 +1834,12 @@ static inline void cpu_probe_loongson(struct cpuinfo_mips *c, unsigned int cpu)
set_elf_platform(cpu, "loongson3a");
set_isa(c, MIPS_CPU_ISA_M64R2);
break;
+ case PRID_REV_LOONGSON3A_R3:
+ c->cputype = CPU_LOONGSON3;
+ __cpu_name[cpu] = "ICT Loongson-3";
+ set_elf_platform(cpu, "loongson3a");
+ set_isa(c, MIPS_CPU_ISA_M64R2);
+ break;
}
decode_configs(c);
@@ -2089,3 +2098,35 @@ void cpu_report(void)
if (cpu_has_msa)
pr_info("MSA revision is: %08x\n", c->msa_id);
}
+
+void cpu_set_cluster(struct cpuinfo_mips *cpuinfo, unsigned int cluster)
+{
+ /* Ensure the core number fits in the field */
+ WARN_ON(cluster > (MIPS_GLOBALNUMBER_CLUSTER >>
+ MIPS_GLOBALNUMBER_CLUSTER_SHF));
+
+ cpuinfo->globalnumber &= ~MIPS_GLOBALNUMBER_CLUSTER;
+ cpuinfo->globalnumber |= cluster << MIPS_GLOBALNUMBER_CLUSTER_SHF;
+}
+
+void cpu_set_core(struct cpuinfo_mips *cpuinfo, unsigned int core)
+{
+ /* Ensure the core number fits in the field */
+ WARN_ON(core > (MIPS_GLOBALNUMBER_CORE >> MIPS_GLOBALNUMBER_CORE_SHF));
+
+ cpuinfo->globalnumber &= ~MIPS_GLOBALNUMBER_CORE;
+ cpuinfo->globalnumber |= core << MIPS_GLOBALNUMBER_CORE_SHF;
+}
+
+void cpu_set_vpe_id(struct cpuinfo_mips *cpuinfo, unsigned int vpe)
+{
+ /* Ensure the VP(E) ID fits in the field */
+ WARN_ON(vpe > (MIPS_GLOBALNUMBER_VP >> MIPS_GLOBALNUMBER_VP_SHF));
+
+ /* Ensure we're not using VP(E)s without support */
+ WARN_ON(vpe && !IS_ENABLED(CONFIG_MIPS_MT_SMP) &&
+ !IS_ENABLED(CONFIG_CPU_MIPSR6));
+
+ cpuinfo->globalnumber &= ~MIPS_GLOBALNUMBER_VP;
+ cpuinfo->globalnumber |= vpe << MIPS_GLOBALNUMBER_VP_SHF;
+}
diff --git a/arch/mips/kernel/elf.c b/arch/mips/kernel/elf.c
index 5c429d70e17f..0828d6d963b7 100644
--- a/arch/mips/kernel/elf.c
+++ b/arch/mips/kernel/elf.c
@@ -87,6 +87,7 @@ int arch_elf_pt_proc(void *_ehdr, void *_phdr, struct file *elf,
bool elf32;
u32 flags;
int ret;
+ loff_t pos;
elf32 = ehdr->e32.e_ident[EI_CLASS] == ELFCLASS32;
flags = elf32 ? ehdr->e32.e_flags : ehdr->e64.e_flags;
@@ -108,21 +109,16 @@ int arch_elf_pt_proc(void *_ehdr, void *_phdr, struct file *elf,
if (phdr32->p_filesz < sizeof(abiflags))
return -EINVAL;
-
- ret = kernel_read(elf, phdr32->p_offset,
- (char *)&abiflags,
- sizeof(abiflags));
+ pos = phdr32->p_offset;
} else {
if (phdr64->p_type != PT_MIPS_ABIFLAGS)
return 0;
if (phdr64->p_filesz < sizeof(abiflags))
return -EINVAL;
-
- ret = kernel_read(elf, phdr64->p_offset,
- (char *)&abiflags,
- sizeof(abiflags));
+ pos = phdr64->p_offset;
}
+ ret = kernel_read(elf, &abiflags, sizeof(abiflags), &pos);
if (ret < 0)
return ret;
if (ret != sizeof(abiflags))
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index ae810da4d499..37b9383eacd3 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -150,6 +150,7 @@ LEAF(__r4k_wait)
.align 5
BUILD_ROLLBACK_PROLOGUE handle_int
NESTED(handle_int, PT_SIZE, sp)
+ .cfi_signal_frame
#ifdef CONFIG_TRACE_IRQFLAGS
/*
* Check to see if the interrupted code has just disabled
@@ -181,7 +182,7 @@ NESTED(handle_int, PT_SIZE, sp)
1:
.set pop
#endif
- SAVE_ALL
+ SAVE_ALL docfi=1
CLI
TRACE_IRQS_OFF
@@ -269,8 +270,8 @@ NESTED(except_vec_ejtag_debug, 0, sp)
*/
BUILD_ROLLBACK_PROLOGUE except_vec_vi
NESTED(except_vec_vi, 0, sp)
- SAVE_SOME
- SAVE_AT
+ SAVE_SOME docfi=1
+ SAVE_AT docfi=1
.set push
.set noreorder
PTR_LA v1, except_vec_vi_handler
@@ -396,6 +397,7 @@ NESTED(except_vec_nmi, 0, sp)
__FINIT
NESTED(nmi_handler, PT_SIZE, sp)
+ .cfi_signal_frame
.set push
.set noat
/*
@@ -478,6 +480,7 @@ NESTED(nmi_handler, PT_SIZE, sp)
.macro __BUILD_HANDLER exception handler clear verbose ext
.align 5
NESTED(handle_\exception, PT_SIZE, sp)
+ .cfi_signal_frame
.set noat
SAVE_ALL
FEXPORT(handle_\exception\ext)
@@ -485,8 +488,8 @@ NESTED(nmi_handler, PT_SIZE, sp)
.set at
__BUILD_\verbose \exception
move a0, sp
- PTR_LA ra, ret_from_exception
- j do_\handler
+ jal do_\handler
+ j ret_from_exception
END(handle_\exception)
.endm
diff --git a/arch/mips/kernel/idle.c b/arch/mips/kernel/idle.c
index 60ab4c44d305..7c246b69c545 100644
--- a/arch/mips/kernel/idle.c
+++ b/arch/mips/kernel/idle.c
@@ -11,6 +11,7 @@
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
+#include <linux/cpu.h>
#include <linux/export.h>
#include <linux/init.h>
#include <linux/irqflags.h>
diff --git a/arch/mips/kernel/jump_label.c b/arch/mips/kernel/jump_label.c
index 3e586daa3a32..32e3168316cd 100644
--- a/arch/mips/kernel/jump_label.c
+++ b/arch/mips/kernel/jump_label.c
@@ -58,7 +58,6 @@ void arch_jump_label_transform(struct jump_entry *e,
insn.word = 0; /* nop */
}
- get_online_cpus();
mutex_lock(&text_mutex);
if (IS_ENABLED(CONFIG_CPU_MICROMIPS)) {
insn_p->halfword[0] = insn.word >> 16;
@@ -70,7 +69,6 @@ void arch_jump_label_transform(struct jump_entry *e,
(unsigned long)insn_p + sizeof(*insn_p));
mutex_unlock(&text_mutex);
- put_online_cpus();
}
#endif /* HAVE_JUMP_LABEL */
diff --git a/arch/mips/kernel/mips-cm.c b/arch/mips/kernel/mips-cm.c
index 659e6d3ae335..e91c8c4e2eb5 100644
--- a/arch/mips/kernel/mips-cm.c
+++ b/arch/mips/kernel/mips-cm.c
@@ -12,10 +12,10 @@
#include <linux/percpu.h>
#include <linux/spinlock.h>
-#include <asm/mips-cm.h>
+#include <asm/mips-cps.h>
#include <asm/mipsregs.h>
-void __iomem *mips_cm_base;
+void __iomem *mips_gcr_base;
void __iomem *mips_cm_l2sync_base;
int mips_cm_is64;
@@ -167,8 +167,8 @@ phys_addr_t __mips_cm_l2sync_phys_base(void)
* current location.
*/
base_reg = read_gcr_l2_only_sync_base();
- if (base_reg & CM_GCR_L2_ONLY_SYNC_BASE_SYNCEN_MSK)
- return base_reg & CM_GCR_L2_ONLY_SYNC_BASE_SYNCBASE_MSK;
+ if (base_reg & CM_GCR_L2_ONLY_SYNC_BASE_SYNCEN)
+ return base_reg & CM_GCR_L2_ONLY_SYNC_BASE_SYNCBASE;
/* Default to following the CM */
return mips_cm_phys_base() + MIPS_CM_GCR_SIZE;
@@ -183,19 +183,19 @@ static void mips_cm_probe_l2sync(void)
phys_addr_t addr;
/* L2-only sync was introduced with CM major revision 6 */
- major_rev = (read_gcr_rev() & CM_GCR_REV_MAJOR_MSK) >>
- CM_GCR_REV_MAJOR_SHF;
+ major_rev = (read_gcr_rev() & CM_GCR_REV_MAJOR) >>
+ __ffs(CM_GCR_REV_MAJOR);
if (major_rev < 6)
return;
/* Find a location for the L2 sync region */
addr = mips_cm_l2sync_phys_base();
- BUG_ON((addr & CM_GCR_L2_ONLY_SYNC_BASE_SYNCBASE_MSK) != addr);
+ BUG_ON((addr & CM_GCR_L2_ONLY_SYNC_BASE_SYNCBASE) != addr);
if (!addr)
return;
/* Set the region base address & enable it */
- write_gcr_l2_only_sync_base(addr | CM_GCR_L2_ONLY_SYNC_BASE_SYNCEN_MSK);
+ write_gcr_l2_only_sync_base(addr | CM_GCR_L2_ONLY_SYNC_BASE_SYNCEN);
/* Map the region */
mips_cm_l2sync_base = ioremap_nocache(addr, MIPS_CM_L2SYNC_SIZE);
@@ -211,41 +211,39 @@ int mips_cm_probe(void)
* No need to probe again if we have already been
* here before.
*/
- if (mips_cm_base)
+ if (mips_gcr_base)
return 0;
addr = mips_cm_phys_base();
- BUG_ON((addr & CM_GCR_BASE_GCRBASE_MSK) != addr);
+ BUG_ON((addr & CM_GCR_BASE_GCRBASE) != addr);
if (!addr)
return -ENODEV;
- mips_cm_base = ioremap_nocache(addr, MIPS_CM_GCR_SIZE);
- if (!mips_cm_base)
+ mips_gcr_base = ioremap_nocache(addr, MIPS_CM_GCR_SIZE);
+ if (!mips_gcr_base)
return -ENXIO;
/* sanity check that we're looking at a CM */
base_reg = read_gcr_base();
- if ((base_reg & CM_GCR_BASE_GCRBASE_MSK) != addr) {
+ if ((base_reg & CM_GCR_BASE_GCRBASE) != addr) {
pr_err("GCRs appear to have been moved (expected them at 0x%08lx)!\n",
(unsigned long)addr);
- mips_cm_base = NULL;
+ mips_gcr_base = NULL;
return -ENODEV;
}
/* set default target to memory */
- base_reg &= ~CM_GCR_BASE_CMDEFTGT_MSK;
- base_reg |= CM_GCR_BASE_CMDEFTGT_MEM;
- write_gcr_base(base_reg);
+ change_gcr_base(CM_GCR_BASE_CMDEFTGT, CM_GCR_BASE_CMDEFTGT_MEM);
/* disable CM regions */
- write_gcr_reg0_base(CM_GCR_REGn_BASE_BASEADDR_MSK);
- write_gcr_reg0_mask(CM_GCR_REGn_MASK_ADDRMASK_MSK);
- write_gcr_reg1_base(CM_GCR_REGn_BASE_BASEADDR_MSK);
- write_gcr_reg1_mask(CM_GCR_REGn_MASK_ADDRMASK_MSK);
- write_gcr_reg2_base(CM_GCR_REGn_BASE_BASEADDR_MSK);
- write_gcr_reg2_mask(CM_GCR_REGn_MASK_ADDRMASK_MSK);
- write_gcr_reg3_base(CM_GCR_REGn_BASE_BASEADDR_MSK);
- write_gcr_reg3_mask(CM_GCR_REGn_MASK_ADDRMASK_MSK);
+ write_gcr_reg0_base(CM_GCR_REGn_BASE_BASEADDR);
+ write_gcr_reg0_mask(CM_GCR_REGn_MASK_ADDRMASK);
+ write_gcr_reg1_base(CM_GCR_REGn_BASE_BASEADDR);
+ write_gcr_reg1_mask(CM_GCR_REGn_MASK_ADDRMASK);
+ write_gcr_reg2_base(CM_GCR_REGn_BASE_BASEADDR);
+ write_gcr_reg2_mask(CM_GCR_REGn_MASK_ADDRMASK);
+ write_gcr_reg3_base(CM_GCR_REGn_BASE_BASEADDR);
+ write_gcr_reg3_mask(CM_GCR_REGn_MASK_ADDRMASK);
/* probe for an L2-only sync region */
mips_cm_probe_l2sync();
@@ -259,22 +257,54 @@ int mips_cm_probe(void)
return 0;
}
-void mips_cm_lock_other(unsigned int core, unsigned int vp)
+void mips_cm_lock_other(unsigned int cluster, unsigned int core,
+ unsigned int vp, unsigned int block)
{
- unsigned curr_core;
+ unsigned int curr_core, cm_rev;
u32 val;
+ cm_rev = mips_cm_revision();
preempt_disable();
- curr_core = current_cpu_data.core;
- spin_lock_irqsave(&per_cpu(cm_core_lock, curr_core),
- per_cpu(cm_core_lock_flags, curr_core));
- if (mips_cm_revision() >= CM_REV_CM3) {
- val = core << CM3_GCR_Cx_OTHER_CORE_SHF;
- val |= vp << CM3_GCR_Cx_OTHER_VP_SHF;
+ if (cm_rev >= CM_REV_CM3) {
+ val = core << __ffs(CM3_GCR_Cx_OTHER_CORE);
+ val |= vp << __ffs(CM3_GCR_Cx_OTHER_VP);
+
+ if (cm_rev >= CM_REV_CM3_5) {
+ val |= CM_GCR_Cx_OTHER_CLUSTER_EN;
+ val |= cluster << __ffs(CM_GCR_Cx_OTHER_CLUSTER);
+ val |= block << __ffs(CM_GCR_Cx_OTHER_BLOCK);
+ } else {
+ WARN_ON(cluster != 0);
+ WARN_ON(block != CM_GCR_Cx_OTHER_BLOCK_LOCAL);
+ }
+
+ /*
+ * We need to disable interrupts in SMP systems in order to
+ * ensure that we don't interrupt the caller with code which
+ * may modify the redirect register. We do so here in a
+ * slightly obscure way by using a spin lock, since this has
+ * the neat property of also catching any nested uses of
+ * mips_cm_lock_other() leading to a deadlock or a nice warning
+ * with lockdep enabled.
+ */
+ spin_lock_irqsave(this_cpu_ptr(&cm_core_lock),
+ *this_cpu_ptr(&cm_core_lock_flags));
} else {
- BUG_ON(vp != 0);
- val = core << CM_GCR_Cx_OTHER_CORENUM_SHF;
+ WARN_ON(cluster != 0);
+ WARN_ON(vp != 0);
+ WARN_ON(block != CM_GCR_Cx_OTHER_BLOCK_LOCAL);
+
+ /*
+ * We only have a GCR_CL_OTHER per core in systems with
+ * CM 2.5 & older, so have to ensure other VP(E)s don't
+ * race with us.
+ */
+ curr_core = cpu_core(&current_cpu_data);
+ spin_lock_irqsave(&per_cpu(cm_core_lock, curr_core),
+ per_cpu(cm_core_lock_flags, curr_core));
+
+ val = core << __ffs(CM_GCR_Cx_OTHER_CORENUM);
}
write_gcr_cl_other(val);
@@ -288,10 +318,17 @@ void mips_cm_lock_other(unsigned int core, unsigned int vp)
void mips_cm_unlock_other(void)
{
- unsigned curr_core = current_cpu_data.core;
+ unsigned int curr_core;
+
+ if (mips_cm_revision() < CM_REV_CM3) {
+ curr_core = cpu_core(&current_cpu_data);
+ spin_unlock_irqrestore(&per_cpu(cm_core_lock, curr_core),
+ per_cpu(cm_core_lock_flags, curr_core));
+ } else {
+ spin_unlock_irqrestore(this_cpu_ptr(&cm_core_lock),
+ *this_cpu_ptr(&cm_core_lock_flags));
+ }
- spin_unlock_irqrestore(&per_cpu(cm_core_lock, curr_core),
- per_cpu(cm_core_lock_flags, curr_core));
preempt_enable();
}
@@ -306,13 +343,13 @@ void mips_cm_error_report(void)
return;
revision = mips_cm_revision();
+ cm_error = read_gcr_error_cause();
+ cm_addr = read_gcr_error_addr();
+ cm_other = read_gcr_error_mult();
if (revision < CM_REV_CM3) { /* CM2 */
- cm_error = read_gcr_error_cause();
- cm_addr = read_gcr_error_addr();
- cm_other = read_gcr_error_mult();
- cause = cm_error >> CM_GCR_ERROR_CAUSE_ERRTYPE_SHF;
- ocause = cm_other >> CM_GCR_ERROR_MULT_ERR2ND_SHF;
+ cause = cm_error >> __ffs(CM_GCR_ERROR_CAUSE_ERRTYPE);
+ ocause = cm_other >> __ffs(CM_GCR_ERROR_MULT_ERR2ND);
if (!cause)
return;
@@ -354,11 +391,8 @@ void mips_cm_error_report(void)
ulong core_id_bits, vp_id_bits, cmd_bits, cmd_group_bits;
ulong cm3_cca_bits, mcp_bits, cm3_tr_bits, sched_bit;
- cm_error = read64_gcr_error_cause();
- cm_addr = read64_gcr_error_addr();
- cm_other = read64_gcr_error_mult();
- cause = cm_error >> CM3_GCR_ERROR_CAUSE_ERRTYPE_SHF;
- ocause = cm_other >> CM_GCR_ERROR_MULT_ERR2ND_SHF;
+ cause = cm_error >> __ffs64(CM3_GCR_ERROR_CAUSE_ERRTYPE);
+ ocause = cm_other >> __ffs(CM_GCR_ERROR_MULT_ERR2ND);
if (!cause)
return;
diff --git a/arch/mips/kernel/mips-cpc.c b/arch/mips/kernel/mips-cpc.c
index a4964c334cab..f66b05ebf637 100644
--- a/arch/mips/kernel/mips-cpc.c
+++ b/arch/mips/kernel/mips-cpc.c
@@ -12,8 +12,7 @@
#include <linux/percpu.h>
#include <linux/spinlock.h>
-#include <asm/mips-cm.h>
-#include <asm/mips-cpc.h>
+#include <asm/mips-cps.h>
void __iomem *mips_cpc_base;
@@ -40,13 +39,13 @@ static phys_addr_t mips_cpc_phys_base(void)
if (!mips_cm_present())
return 0;
- if (!(read_gcr_cpc_status() & CM_GCR_CPC_STATUS_EX_MSK))
+ if (!(read_gcr_cpc_status() & CM_GCR_CPC_STATUS_EX))
return 0;
/* If the CPC is already enabled, leave it so */
cpc_base = read_gcr_cpc_base();
- if (cpc_base & CM_GCR_CPC_BASE_CPCEN_MSK)
- return cpc_base & CM_GCR_CPC_BASE_CPCBASE_MSK;
+ if (cpc_base & CM_GCR_CPC_BASE_CPCEN)
+ return cpc_base & CM_GCR_CPC_BASE_CPCBASE;
/* Otherwise, use the default address */
cpc_base = mips_cpc_default_phys_base();
@@ -54,7 +53,7 @@ static phys_addr_t mips_cpc_phys_base(void)
return cpc_base;
/* Enable the CPC, mapped at the default address */
- write_gcr_cpc_base(cpc_base | CM_GCR_CPC_BASE_CPCEN_MSK);
+ write_gcr_cpc_base(cpc_base | CM_GCR_CPC_BASE_CPCEN);
return cpc_base;
}
@@ -86,10 +85,10 @@ void mips_cpc_lock_other(unsigned int core)
return;
preempt_disable();
- curr_core = current_cpu_data.core;
+ curr_core = cpu_core(&current_cpu_data);
spin_lock_irqsave(&per_cpu(cpc_core_lock, curr_core),
per_cpu(cpc_core_lock_flags, curr_core));
- write_cpc_cl_other(core << CPC_Cx_OTHER_CORENUM_SHF);
+ write_cpc_cl_other(core << __ffs(CPC_Cx_OTHER_CORENUM));
/*
* Ensure the core-other region reflects the appropriate core &
@@ -106,7 +105,7 @@ void mips_cpc_unlock_other(void)
/* Systems with CM >= 3 lock the CPC via mips_cm_lock_other */
return;
- curr_core = current_cpu_data.core;
+ curr_core = cpu_core(&current_cpu_data);
spin_unlock_irqrestore(&per_cpu(cpc_core_lock, curr_core),
per_cpu(cpc_core_lock_flags, curr_core));
preempt_enable();
diff --git a/arch/mips/kernel/mips-r2-to-r6-emul.c b/arch/mips/kernel/mips-r2-to-r6-emul.c
index ae64c8f56a8c..eb18b186e858 100644
--- a/arch/mips/kernel/mips-r2-to-r6-emul.c
+++ b/arch/mips/kernel/mips-r2-to-r6-emul.c
@@ -46,9 +46,11 @@
#define LL "ll "
#define SC "sc "
-DEFINE_PER_CPU(struct mips_r2_emulator_stats, mipsr2emustats);
-DEFINE_PER_CPU(struct mips_r2_emulator_stats, mipsr2bdemustats);
-DEFINE_PER_CPU(struct mips_r2br_emulator_stats, mipsr2bremustats);
+#ifdef CONFIG_DEBUG_FS
+static DEFINE_PER_CPU(struct mips_r2_emulator_stats, mipsr2emustats);
+static DEFINE_PER_CPU(struct mips_r2_emulator_stats, mipsr2bdemustats);
+static DEFINE_PER_CPU(struct mips_r2br_emulator_stats, mipsr2bremustats);
+#endif
extern const unsigned int fpucondbit[8];
@@ -600,7 +602,7 @@ static int ddivu_func(struct pt_regs *regs, u32 ir)
}
/* R6 removed instructions for the SPECIAL opcode */
-static struct r2_decoder_table spec_op_table[] = {
+static const struct r2_decoder_table spec_op_table[] = {
{ 0xfc1ff83f, 0x00000008, jr_func },
{ 0xfc00ffff, 0x00000018, mult_func },
{ 0xfc00ffff, 0x00000019, multu_func },
@@ -867,7 +869,7 @@ static int dclo_func(struct pt_regs *regs, u32 ir)
}
/* R6 removed instructions for the SPECIAL2 opcode */
-static struct r2_decoder_table spec2_op_table[] = {
+static const struct r2_decoder_table spec2_op_table[] = {
{ 0xfc00ffff, 0x70000000, madd_func },
{ 0xfc00ffff, 0x70000001, maddu_func },
{ 0xfc0007ff, 0x70000002, mul_func },
@@ -881,9 +883,9 @@ static struct r2_decoder_table spec2_op_table[] = {
};
static inline int mipsr2_find_op_func(struct pt_regs *regs, u32 inst,
- struct r2_decoder_table *table)
+ const struct r2_decoder_table *table)
{
- struct r2_decoder_table *p;
+ const struct r2_decoder_table *p;
int err;
for (p = table; p->func; p++) {
diff --git a/arch/mips/kernel/module-rela.c b/arch/mips/kernel/module-rela.c
deleted file mode 100644
index 781168834456..000000000000
--- a/arch/mips/kernel/module-rela.c
+++ /dev/null
@@ -1,202 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Copyright (C) 2001 Rusty Russell.
- * Copyright (C) 2003, 2004 Ralf Baechle (ralf@linux-mips.org)
- * Copyright (C) 2005 Thiemo Seufer
- * Copyright (C) 2015 Imagination Technologies Ltd.
- */
-
-#include <linux/elf.h>
-#include <linux/err.h>
-#include <linux/errno.h>
-#include <linux/moduleloader.h>
-
-extern int apply_r_mips_none(struct module *me, u32 *location, Elf_Addr v);
-
-static int apply_r_mips_32_rela(struct module *me, u32 *location, Elf_Addr v)
-{
- *location = v;
-
- return 0;
-}
-
-static int apply_r_mips_26_rela(struct module *me, u32 *location, Elf_Addr v)
-{
- if (v % 4) {
- pr_err("module %s: dangerous R_MIPS_26 RELA relocation\n",
- me->name);
- return -ENOEXEC;
- }
-
- if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
- pr_err("module %s: relocation overflow\n", me->name);
- return -ENOEXEC;
- }
-
- *location = (*location & ~0x03ffffff) | ((v >> 2) & 0x03ffffff);
-
- return 0;
-}
-
-static int apply_r_mips_hi16_rela(struct module *me, u32 *location, Elf_Addr v)
-{
- *location = (*location & 0xffff0000) |
- ((((long long) v + 0x8000LL) >> 16) & 0xffff);
-
- return 0;
-}
-
-static int apply_r_mips_lo16_rela(struct module *me, u32 *location, Elf_Addr v)
-{
- *location = (*location & 0xffff0000) | (v & 0xffff);
-
- return 0;
-}
-
-static int apply_r_mips_pc_rela(struct module *me, u32 *location, Elf_Addr v,
- unsigned bits)
-{
- unsigned long mask = GENMASK(bits - 1, 0);
- unsigned long se_bits;
- long offset;
-
- if (v % 4) {
- pr_err("module %s: dangerous R_MIPS_PC%u RELA relocation\n",
- me->name, bits);
- return -ENOEXEC;
- }
-
- offset = ((long)v - (long)location) >> 2;
-
- /* check the sign bit onwards are identical - ie. we didn't overflow */
- se_bits = (offset & BIT(bits - 1)) ? ~0ul : 0;
- if ((offset & ~mask) != (se_bits & ~mask)) {
- pr_err("module %s: relocation overflow\n", me->name);
- return -ENOEXEC;
- }
-
- *location = (*location & ~mask) | (offset & mask);
-
- return 0;
-}
-
-static int apply_r_mips_pc16_rela(struct module *me, u32 *location, Elf_Addr v)
-{
- return apply_r_mips_pc_rela(me, location, v, 16);
-}
-
-static int apply_r_mips_pc21_rela(struct module *me, u32 *location, Elf_Addr v)
-{
- return apply_r_mips_pc_rela(me, location, v, 21);
-}
-
-static int apply_r_mips_pc26_rela(struct module *me, u32 *location, Elf_Addr v)
-{
- return apply_r_mips_pc_rela(me, location, v, 26);
-}
-
-static int apply_r_mips_64_rela(struct module *me, u32 *location, Elf_Addr v)
-{
- *(Elf_Addr *)location = v;
-
- return 0;
-}
-
-static int apply_r_mips_higher_rela(struct module *me, u32 *location,
- Elf_Addr v)
-{
- *location = (*location & 0xffff0000) |
- ((((long long) v + 0x80008000LL) >> 32) & 0xffff);
-
- return 0;
-}
-
-static int apply_r_mips_highest_rela(struct module *me, u32 *location,
- Elf_Addr v)
-{
- *location = (*location & 0xffff0000) |
- ((((long long) v + 0x800080008000LL) >> 48) & 0xffff);
-
- return 0;
-}
-
-static int (*reloc_handlers_rela[]) (struct module *me, u32 *location,
- Elf_Addr v) = {
- [R_MIPS_NONE] = apply_r_mips_none,
- [R_MIPS_32] = apply_r_mips_32_rela,
- [R_MIPS_26] = apply_r_mips_26_rela,
- [R_MIPS_HI16] = apply_r_mips_hi16_rela,
- [R_MIPS_LO16] = apply_r_mips_lo16_rela,
- [R_MIPS_PC16] = apply_r_mips_pc16_rela,
- [R_MIPS_64] = apply_r_mips_64_rela,
- [R_MIPS_HIGHER] = apply_r_mips_higher_rela,
- [R_MIPS_HIGHEST] = apply_r_mips_highest_rela,
- [R_MIPS_PC21_S2] = apply_r_mips_pc21_rela,
- [R_MIPS_PC26_S2] = apply_r_mips_pc26_rela,
-};
-
-int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
- unsigned int symindex, unsigned int relsec,
- struct module *me)
-{
- Elf_Mips_Rela *rel = (void *) sechdrs[relsec].sh_addr;
- int (*handler)(struct module *me, u32 *location, Elf_Addr v);
- Elf_Sym *sym;
- u32 *location;
- unsigned int i, type;
- Elf_Addr v;
- int res;
-
- pr_debug("Applying relocate section %u to %u\n", relsec,
- sechdrs[relsec].sh_info);
-
- for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
- /* This is where to make the change */
- location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
- + rel[i].r_offset;
- /* This is the symbol it is referring to */
- sym = (Elf_Sym *)sechdrs[symindex].sh_addr
- + ELF_MIPS_R_SYM(rel[i]);
- if (sym->st_value >= -MAX_ERRNO) {
- /* Ignore unresolved weak symbol */
- if (ELF_ST_BIND(sym->st_info) == STB_WEAK)
- continue;
- pr_warn("%s: Unknown symbol %s\n",
- me->name, strtab + sym->st_name);
- return -ENOENT;
- }
-
- type = ELF_MIPS_R_TYPE(rel[i]);
-
- if (type < ARRAY_SIZE(reloc_handlers_rela))
- handler = reloc_handlers_rela[type];
- else
- handler = NULL;
-
- if (!handler) {
- pr_err("%s: Unknown relocation type %u\n",
- me->name, type);
- return -EINVAL;
- }
-
- v = sym->st_value + rel[i].r_addend;
- res = handler(me, location, v);
- if (res)
- return res;
- }
-
- return 0;
-}
diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c
index 94627a3a6a0d..491605137b03 100644
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
@@ -53,22 +53,25 @@ void *module_alloc(unsigned long size)
}
#endif
-int apply_r_mips_none(struct module *me, u32 *location, Elf_Addr v)
+static int apply_r_mips_none(struct module *me, u32 *location,
+ u32 base, Elf_Addr v, bool rela)
{
return 0;
}
-static int apply_r_mips_32_rel(struct module *me, u32 *location, Elf_Addr v)
+static int apply_r_mips_32(struct module *me, u32 *location,
+ u32 base, Elf_Addr v, bool rela)
{
- *location += v;
+ *location = base + v;
return 0;
}
-static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v)
+static int apply_r_mips_26(struct module *me, u32 *location,
+ u32 base, Elf_Addr v, bool rela)
{
if (v % 4) {
- pr_err("module %s: dangerous R_MIPS_26 REL relocation\n",
+ pr_err("module %s: dangerous R_MIPS_26 relocation\n",
me->name);
return -ENOEXEC;
}
@@ -80,15 +83,22 @@ static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v)
}
*location = (*location & ~0x03ffffff) |
- ((*location + (v >> 2)) & 0x03ffffff);
+ ((base + (v >> 2)) & 0x03ffffff);
return 0;
}
-static int apply_r_mips_hi16_rel(struct module *me, u32 *location, Elf_Addr v)
+static int apply_r_mips_hi16(struct module *me, u32 *location,
+ u32 base, Elf_Addr v, bool rela)
{
struct mips_hi16 *n;
+ if (rela) {
+ *location = (*location & 0xffff0000) |
+ ((((long long) v + 0x8000LL) >> 16) & 0xffff);
+ return 0;
+ }
+
/*
* We cannot relocate this one now because we don't know the value of
* the carry we need to add. Save the information, and let LO16 do the
@@ -117,12 +127,18 @@ static void free_relocation_chain(struct mips_hi16 *l)
}
}
-static int apply_r_mips_lo16_rel(struct module *me, u32 *location, Elf_Addr v)
+static int apply_r_mips_lo16(struct module *me, u32 *location,
+ u32 base, Elf_Addr v, bool rela)
{
- unsigned long insnlo = *location;
+ unsigned long insnlo = base;
struct mips_hi16 *l;
Elf_Addr val, vallo;
+ if (rela) {
+ *location = (*location & 0xffff0000) | (v & 0xffff);
+ return 0;
+ }
+
/* Sign extend the addend we extract from the lo insn. */
vallo = ((insnlo & 0xffff) ^ 0x8000) - 0x8000;
@@ -178,26 +194,26 @@ out_danger:
free_relocation_chain(l);
me->arch.r_mips_hi16_list = NULL;
- pr_err("module %s: dangerous R_MIPS_LO16 REL relocation\n", me->name);
+ pr_err("module %s: dangerous R_MIPS_LO16 relocation\n", me->name);
return -ENOEXEC;
}
-static int apply_r_mips_pc_rel(struct module *me, u32 *location, Elf_Addr v,
- unsigned bits)
+static int apply_r_mips_pc(struct module *me, u32 *location, u32 base,
+ Elf_Addr v, unsigned int bits)
{
unsigned long mask = GENMASK(bits - 1, 0);
unsigned long se_bits;
long offset;
if (v % 4) {
- pr_err("module %s: dangerous R_MIPS_PC%u REL relocation\n",
+ pr_err("module %s: dangerous R_MIPS_PC%u relocation\n",
me->name, bits);
return -ENOEXEC;
}
- /* retrieve & sign extend implicit addend */
- offset = *location & mask;
+ /* retrieve & sign extend implicit addend if any */
+ offset = base & mask;
offset |= (offset & BIT(bits - 1)) ? ~mask : 0;
offset += ((long)v - (long)location) >> 2;
@@ -214,99 +230,192 @@ static int apply_r_mips_pc_rel(struct module *me, u32 *location, Elf_Addr v,
return 0;
}
-static int apply_r_mips_pc16_rel(struct module *me, u32 *location, Elf_Addr v)
+static int apply_r_mips_pc16(struct module *me, u32 *location,
+ u32 base, Elf_Addr v, bool rela)
+{
+ return apply_r_mips_pc(me, location, base, v, 16);
+}
+
+static int apply_r_mips_pc21(struct module *me, u32 *location,
+ u32 base, Elf_Addr v, bool rela)
+{
+ return apply_r_mips_pc(me, location, base, v, 21);
+}
+
+static int apply_r_mips_pc26(struct module *me, u32 *location,
+ u32 base, Elf_Addr v, bool rela)
+{
+ return apply_r_mips_pc(me, location, base, v, 26);
+}
+
+static int apply_r_mips_64(struct module *me, u32 *location,
+ u32 base, Elf_Addr v, bool rela)
{
- return apply_r_mips_pc_rel(me, location, v, 16);
+ if (WARN_ON(!rela))
+ return -EINVAL;
+
+ *(Elf_Addr *)location = v;
+
+ return 0;
}
-static int apply_r_mips_pc21_rel(struct module *me, u32 *location, Elf_Addr v)
+static int apply_r_mips_higher(struct module *me, u32 *location,
+ u32 base, Elf_Addr v, bool rela)
{
- return apply_r_mips_pc_rel(me, location, v, 21);
+ if (WARN_ON(!rela))
+ return -EINVAL;
+
+ *location = (*location & 0xffff0000) |
+ ((((long long)v + 0x80008000LL) >> 32) & 0xffff);
+
+ return 0;
}
-static int apply_r_mips_pc26_rel(struct module *me, u32 *location, Elf_Addr v)
+static int apply_r_mips_highest(struct module *me, u32 *location,
+ u32 base, Elf_Addr v, bool rela)
{
- return apply_r_mips_pc_rel(me, location, v, 26);
+ if (WARN_ON(!rela))
+ return -EINVAL;
+
+ *location = (*location & 0xffff0000) |
+ ((((long long)v + 0x800080008000LL) >> 48) & 0xffff);
+
+ return 0;
}
-static int (*reloc_handlers_rel[]) (struct module *me, u32 *location,
- Elf_Addr v) = {
+/**
+ * reloc_handler() - Apply a particular relocation to a module
+ * @me: the module to apply the reloc to
+ * @location: the address at which the reloc is to be applied
+ * @base: the existing value at location for REL-style; 0 for RELA-style
+ * @v: the value of the reloc, with addend for RELA-style
+ *
+ * Each implemented reloc_handler function applies a particular type of
+ * relocation to the module @me. Relocs that may be found in either REL or RELA
+ * variants can be handled by making use of the @base & @v parameters which are
+ * set to values which abstract the difference away from the particular reloc
+ * implementations.
+ *
+ * Return: 0 upon success, else -ERRNO
+ */
+typedef int (*reloc_handler)(struct module *me, u32 *location,
+ u32 base, Elf_Addr v, bool rela);
+
+/* The handlers for known reloc types */
+static reloc_handler reloc_handlers[] = {
[R_MIPS_NONE] = apply_r_mips_none,
- [R_MIPS_32] = apply_r_mips_32_rel,
- [R_MIPS_26] = apply_r_mips_26_rel,
- [R_MIPS_HI16] = apply_r_mips_hi16_rel,
- [R_MIPS_LO16] = apply_r_mips_lo16_rel,
- [R_MIPS_PC16] = apply_r_mips_pc16_rel,
- [R_MIPS_PC21_S2] = apply_r_mips_pc21_rel,
- [R_MIPS_PC26_S2] = apply_r_mips_pc26_rel,
+ [R_MIPS_32] = apply_r_mips_32,
+ [R_MIPS_26] = apply_r_mips_26,
+ [R_MIPS_HI16] = apply_r_mips_hi16,
+ [R_MIPS_LO16] = apply_r_mips_lo16,
+ [R_MIPS_PC16] = apply_r_mips_pc16,
+ [R_MIPS_64] = apply_r_mips_64,
+ [R_MIPS_HIGHER] = apply_r_mips_higher,
+ [R_MIPS_HIGHEST] = apply_r_mips_highest,
+ [R_MIPS_PC21_S2] = apply_r_mips_pc21,
+ [R_MIPS_PC26_S2] = apply_r_mips_pc26,
};
-int apply_relocate(Elf_Shdr *sechdrs, const char *strtab,
- unsigned int symindex, unsigned int relsec,
- struct module *me)
+static int __apply_relocate(Elf_Shdr *sechdrs, const char *strtab,
+ unsigned int symindex, unsigned int relsec,
+ struct module *me, bool rela)
{
- Elf_Mips_Rel *rel = (void *) sechdrs[relsec].sh_addr;
- int (*handler)(struct module *me, u32 *location, Elf_Addr v);
+ union {
+ Elf_Mips_Rel *rel;
+ Elf_Mips_Rela *rela;
+ } r;
+ reloc_handler handler;
Elf_Sym *sym;
- u32 *location;
+ u32 *location, base;
unsigned int i, type;
Elf_Addr v;
- int res;
+ int err = 0;
+ size_t reloc_sz;
pr_debug("Applying relocate section %u to %u\n", relsec,
sechdrs[relsec].sh_info);
+ r.rel = (void *)sechdrs[relsec].sh_addr;
+ reloc_sz = rela ? sizeof(*r.rela) : sizeof(*r.rel);
me->arch.r_mips_hi16_list = NULL;
- for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
+ for (i = 0; i < sechdrs[relsec].sh_size / reloc_sz; i++) {
/* This is where to make the change */
location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
- + rel[i].r_offset;
+ + r.rel->r_offset;
/* This is the symbol it is referring to */
sym = (Elf_Sym *)sechdrs[symindex].sh_addr
- + ELF_MIPS_R_SYM(rel[i]);
+ + ELF_MIPS_R_SYM(*r.rel);
if (sym->st_value >= -MAX_ERRNO) {
/* Ignore unresolved weak symbol */
if (ELF_ST_BIND(sym->st_info) == STB_WEAK)
continue;
pr_warn("%s: Unknown symbol %s\n",
me->name, strtab + sym->st_name);
- return -ENOENT;
+ err = -ENOENT;
+ goto out;
}
- type = ELF_MIPS_R_TYPE(rel[i]);
-
- if (type < ARRAY_SIZE(reloc_handlers_rel))
- handler = reloc_handlers_rel[type];
+ type = ELF_MIPS_R_TYPE(*r.rel);
+ if (type < ARRAY_SIZE(reloc_handlers))
+ handler = reloc_handlers[type];
else
handler = NULL;
if (!handler) {
pr_err("%s: Unknown relocation type %u\n",
me->name, type);
- return -EINVAL;
+ err = -EINVAL;
+ goto out;
}
- v = sym->st_value;
- res = handler(me, location, v);
- if (res)
- return res;
+ if (rela) {
+ v = sym->st_value + r.rela->r_addend;
+ base = 0;
+ r.rela = &r.rela[1];
+ } else {
+ v = sym->st_value;
+ base = *location;
+ r.rel = &r.rel[1];
+ }
+
+ err = handler(me, location, base, v, rela);
+ if (err)
+ goto out;
}
+out:
/*
- * Normally the hi16 list should be deallocated at this point. A
+ * Normally the hi16 list should be deallocated at this point. A
* malformed binary however could contain a series of R_MIPS_HI16
- * relocations not followed by a R_MIPS_LO16 relocation. In that
- * case, free up the list and return an error.
+ * relocations not followed by a R_MIPS_LO16 relocation, or if we hit
+ * an error processing a reloc we might have gotten here before
+ * reaching the R_MIPS_LO16. In either case, free up the list and
+ * return an error.
*/
if (me->arch.r_mips_hi16_list) {
free_relocation_chain(me->arch.r_mips_hi16_list);
me->arch.r_mips_hi16_list = NULL;
-
- return -ENOEXEC;
+ err = err ?: -ENOEXEC;
}
- return 0;
+ return err;
+}
+
+int apply_relocate(Elf_Shdr *sechdrs, const char *strtab,
+ unsigned int symindex, unsigned int relsec,
+ struct module *me)
+{
+ return __apply_relocate(sechdrs, strtab, symindex, relsec, me, false);
+}
+
+#ifdef CONFIG_MODULES_USE_ELF_RELA
+int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
+ unsigned int symindex, unsigned int relsec,
+ struct module *me)
+{
+ return __apply_relocate(sechdrs, strtab, symindex, relsec, me, true);
}
+#endif /* CONFIG_MODULES_USE_ELF_RELA */
/* Given an address, look for it in the module exception tables. */
const struct exception_table_entry *search_module_dbetables(unsigned long addr)
@@ -317,7 +426,8 @@ const struct exception_table_entry *search_module_dbetables(unsigned long addr)
spin_lock_irqsave(&dbe_lock, flags);
list_for_each_entry(dbe, &dbe_list, dbe_list) {
- e = search_extable(dbe->dbe_start, dbe->dbe_end - 1, addr);
+ e = search_extable(dbe->dbe_start,
+ dbe->dbe_end - dbe->dbe_start, addr);
if (e)
break;
}
diff --git a/arch/mips/kernel/octeon_switch.S b/arch/mips/kernel/octeon_switch.S
index 3375745b9198..e42113fe2762 100644
--- a/arch/mips/kernel/octeon_switch.S
+++ b/arch/mips/kernel/octeon_switch.S
@@ -10,12 +10,13 @@
* Copyright (C) 2000 MIPS Technologies, Inc.
* written by Carsten Langgaard, carstenl@mips.com
*/
+#include <asm/asm.h>
+#include <asm/export.h>
+#include <asm/asm-offsets.h>
+#include <asm/mipsregs.h>
+#include <asm/regdef.h>
+#include <asm/stackframe.h>
-#define USE_ALTERNATE_RESUME_IMPL 1
- .set push
- .set arch=mips64r2
-#include "r4k_switch.S"
- .set pop
/*
* task_struct *resume(task_struct *prev, task_struct *next,
* struct thread_info *next_ti)
diff --git a/arch/mips/kernel/perf_event_mipsxx.c b/arch/mips/kernel/perf_event_mipsxx.c
index f3e301f95aef..6668f67a61c3 100644
--- a/arch/mips/kernel/perf_event_mipsxx.c
+++ b/arch/mips/kernel/perf_event_mipsxx.c
@@ -618,8 +618,7 @@ static int mipspmu_event_init(struct perf_event *event)
return -ENOENT;
}
- if ((unsigned int)event->cpu >= nr_cpumask_bits ||
- (event->cpu >= 0 && !cpu_online(event->cpu)))
+ if (event->cpu >= 0 && !cpu_online(event->cpu))
return -ENODEV;
if (!atomic_inc_not_zero(&active_events)) {
@@ -814,7 +813,7 @@ static const struct mips_perf_event mipsxxcore_event_map2
[PERF_COUNT_HW_BRANCH_MISSES] = { 0x27, CNTR_ODD, T },
};
-static const struct mips_perf_event i6400_event_map[PERF_COUNT_HW_MAX] = {
+static const struct mips_perf_event i6x00_event_map[PERF_COUNT_HW_MAX] = {
[PERF_COUNT_HW_CPU_CYCLES] = { 0x00, CNTR_EVEN | CNTR_ODD },
[PERF_COUNT_HW_INSTRUCTIONS] = { 0x01, CNTR_EVEN | CNTR_ODD },
/* These only count dcache, not icache */
@@ -1014,7 +1013,7 @@ static const struct mips_perf_event mipsxxcore_cache_map2
},
};
-static const struct mips_perf_event i6400_cache_map
+static const struct mips_perf_event i6x00_cache_map
[PERF_COUNT_HW_CACHE_MAX]
[PERF_COUNT_HW_CACHE_OP_MAX]
[PERF_COUNT_HW_CACHE_RESULT_MAX] = {
@@ -1610,6 +1609,7 @@ static const struct mips_perf_event *mipsxx_pmu_map_raw_event(u64 config)
#endif
break;
case CPU_I6400:
+ case CPU_I6500:
/* 8-bit event numbers */
base_id = config & 0xff;
raw_event.cntr_mask = CNTR_EVEN | CNTR_ODD;
@@ -1770,8 +1770,13 @@ init_hw_perf_events(void)
break;
case CPU_I6400:
mipspmu.name = "mips/I6400";
- mipspmu.general_event_map = &i6400_event_map;
- mipspmu.cache_event_map = &i6400_cache_map;
+ mipspmu.general_event_map = &i6x00_event_map;
+ mipspmu.cache_event_map = &i6x00_cache_map;
+ break;
+ case CPU_I6500:
+ mipspmu.name = "mips/I6500";
+ mipspmu.general_event_map = &i6x00_event_map;
+ mipspmu.cache_event_map = &i6x00_cache_map;
break;
case CPU_1004K:
mipspmu.name = "mips/1004K";
diff --git a/arch/mips/kernel/pm-cps.c b/arch/mips/kernel/pm-cps.c
index d99416094ba9..4655017f2377 100644
--- a/arch/mips/kernel/pm-cps.c
+++ b/arch/mips/kernel/pm-cps.c
@@ -17,8 +17,7 @@
#include <asm/cacheflush.h>
#include <asm/cacheops.h>
#include <asm/idle.h>
-#include <asm/mips-cm.h>
-#include <asm/mips-cpc.h>
+#include <asm/mips-cps.h>
#include <asm/mipsmtregs.h>
#include <asm/pm.h>
#include <asm/pm-cps.h>
@@ -49,7 +48,7 @@ static DEFINE_PER_CPU_READ_MOSTLY(cps_nc_entry_fn[CPS_PM_STATE_COUNT],
nc_asm_enter);
/* Bitmap indicating which states are supported by the system */
-DECLARE_BITMAP(state_support, CPS_PM_STATE_COUNT);
+static DECLARE_BITMAP(state_support, CPS_PM_STATE_COUNT);
/*
* Indicates the number of coupled VPEs ready to operate in a non-coherent
@@ -114,7 +113,7 @@ static void coupled_barrier(atomic_t *a, unsigned online)
int cps_pm_enter_state(enum cps_pm_state state)
{
unsigned cpu = smp_processor_id();
- unsigned core = current_cpu_data.core;
+ unsigned core = cpu_core(&current_cpu_data);
unsigned online, left;
cpumask_t *coupled_mask = this_cpu_ptr(&online_coupled);
u32 *core_ready_count, *nc_core_ready_count;
@@ -486,7 +485,7 @@ static void *cps_gen_entry_code(unsigned cpu, enum cps_pm_state state)
* defined by the interAptiv & proAptiv SUMs as ensuring that the
* operation resulting from the preceding store is complete.
*/
- uasm_i_addiu(&p, t0, zero, 1 << cpu_data[cpu].core);
+ uasm_i_addiu(&p, t0, zero, 1 << cpu_core(&cpu_data[cpu]));
uasm_i_sw(&p, t0, 0, r_pcohctl);
uasm_i_lw(&p, t0, 0, r_pcohctl);
@@ -569,8 +568,8 @@ static void *cps_gen_entry_code(unsigned cpu, enum cps_pm_state state)
* rest will just be performing a rather unusual nop.
*/
uasm_i_addiu(&p, t0, zero, mips_cm_revision() < CM_REV_CM3
- ? CM_GCR_Cx_COHERENCE_COHDOMAINEN_MSK
- : CM3_GCR_Cx_COHERENCE_COHEN_MSK);
+ ? CM_GCR_Cx_COHERENCE_COHDOMAINEN
+ : CM3_GCR_Cx_COHERENCE_COHEN);
uasm_i_sw(&p, t0, 0, r_pcohctl);
uasm_i_lw(&p, t0, 0, r_pcohctl);
@@ -640,7 +639,7 @@ out_err:
static int cps_pm_online_cpu(unsigned int cpu)
{
enum cps_pm_state state;
- unsigned core = cpu_data[cpu].core;
+ unsigned core = cpu_core(&cpu_data[cpu]);
void *entry_fn, *core_rc;
for (state = CPS_PM_NC_WAIT; state < CPS_PM_STATE_COUNT; state++) {
@@ -692,7 +691,7 @@ static int __init cps_pm_init(void)
/* Detect whether a CPC is present */
if (mips_cpc_present()) {
/* Detect whether clock gating is implemented */
- if (read_cpc_cl_stat_conf() & CPC_Cx_STAT_CONF_CLKGAT_IMPL_MSK)
+ if (read_cpc_cl_stat_conf() & CPC_Cx_STAT_CONF_CLKGAT_IMPL)
set_bit(CPS_PM_CLOCK_GATED, state_support);
else
pr_warn("pm-cps: CPC does not support clock gating\n");
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index 4eff2aed7360..bd9bf528f19b 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -83,7 +83,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
}
seq_printf(m, "isa\t\t\t:");
- if (cpu_has_mips_r1)
+ if (cpu_has_mips_1)
seq_printf(m, " mips1");
if (cpu_has_mips_2)
seq_printf(m, "%s", " mips2");
@@ -109,6 +109,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
seq_printf(m, "ASEs implemented\t:");
if (cpu_has_mips16) seq_printf(m, "%s", " mips16");
+ if (cpu_has_mips16e2) seq_printf(m, "%s", " mips16e2");
if (cpu_has_mdmx) seq_printf(m, "%s", " mdmx");
if (cpu_has_mips3d) seq_printf(m, "%s", " mips3d");
if (cpu_has_smartmips) seq_printf(m, "%s", " smartmips");
@@ -133,13 +134,13 @@ static int show_cpuinfo(struct seq_file *m, void *v)
seq_printf(m, "kscratch registers\t: %d\n",
hweight8(cpu_data[n].kscratch_mask));
seq_printf(m, "package\t\t\t: %d\n", cpu_data[n].package);
- seq_printf(m, "core\t\t\t: %d\n", cpu_data[n].core);
+ seq_printf(m, "core\t\t\t: %d\n", cpu_core(&cpu_data[n]));
#if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_CPU_MIPSR6)
if (cpu_has_mipsmt)
- seq_printf(m, "VPE\t\t\t: %d\n", cpu_data[n].vpe_id);
+ seq_printf(m, "VPE\t\t\t: %d\n", cpu_vpe_id(&cpu_data[n]));
else if (cpu_has_vp)
- seq_printf(m, "VP\t\t\t: %d\n", cpu_data[n].vpe_id);
+ seq_printf(m, "VP\t\t\t: %d\n", cpu_vpe_id(&cpu_data[n]));
#endif
sprintf(fmt, "VCE%%c exceptions\t\t: %s\n",
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 5351e1f3950d..c5ff6bfe2825 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -208,13 +208,13 @@ static inline int is_ra_save_ins(union mips_instruction *ip, int *poff)
*
* microMIPS is way more fun...
*/
- if (mm_insn_16bit(ip->halfword[1])) {
+ if (mm_insn_16bit(ip->word >> 16)) {
switch (ip->mm16_r5_format.opcode) {
case mm_swsp16_op:
if (ip->mm16_r5_format.rt != 31)
return 0;
- *poff = ip->mm16_r5_format.simmediate;
+ *poff = ip->mm16_r5_format.imm;
*poff = (*poff << 2) / sizeof(ulong);
return 1;
@@ -287,7 +287,7 @@ static inline int is_jump_ins(union mips_instruction *ip)
*
* microMIPS is kind of more fun...
*/
- if (mm_insn_16bit(ip->halfword[1])) {
+ if (mm_insn_16bit(ip->word >> 16)) {
if ((ip->mm16_r5_format.opcode == mm_pool16c_op &&
(ip->mm16_r5_format.rt & mm_jr16_op) == mm_jr16_op))
return 1;
@@ -313,9 +313,11 @@ static inline int is_jump_ins(union mips_instruction *ip)
#endif
}
-static inline int is_sp_move_ins(union mips_instruction *ip)
+static inline int is_sp_move_ins(union mips_instruction *ip, int *frame_size)
{
#ifdef CONFIG_CPU_MICROMIPS
+ unsigned short tmp;
+
/*
* addiusp -imm
* addius5 sp,-imm
@@ -324,21 +326,40 @@ static inline int is_sp_move_ins(union mips_instruction *ip)
*
* microMIPS is not more fun...
*/
- if (mm_insn_16bit(ip->halfword[1])) {
- return (ip->mm16_r3_format.opcode == mm_pool16d_op &&
- ip->mm16_r3_format.simmediate && mm_addiusp_func) ||
- (ip->mm16_r5_format.opcode == mm_pool16d_op &&
- ip->mm16_r5_format.rt == 29);
+ if (mm_insn_16bit(ip->word >> 16)) {
+ if (ip->mm16_r3_format.opcode == mm_pool16d_op &&
+ ip->mm16_r3_format.simmediate & mm_addiusp_func) {
+ tmp = ip->mm_b0_format.simmediate >> 1;
+ tmp = ((tmp & 0x1ff) ^ 0x100) - 0x100;
+ if ((tmp + 2) < 4) /* 0x0,0x1,0x1fe,0x1ff are special */
+ tmp ^= 0x100;
+ *frame_size = -(signed short)(tmp << 2);
+ return 1;
+ }
+ if (ip->mm16_r5_format.opcode == mm_pool16d_op &&
+ ip->mm16_r5_format.rt == 29) {
+ tmp = ip->mm16_r5_format.imm >> 1;
+ *frame_size = -(signed short)(tmp & 0xf);
+ return 1;
+ }
+ return 0;
}
- return ip->mm_i_format.opcode == mm_addiu32_op &&
- ip->mm_i_format.rt == 29 && ip->mm_i_format.rs == 29;
+ if (ip->mm_i_format.opcode == mm_addiu32_op &&
+ ip->mm_i_format.rt == 29 && ip->mm_i_format.rs == 29) {
+ *frame_size = -ip->i_format.simmediate;
+ return 1;
+ }
#else
/* addiu/daddiu sp,sp,-imm */
if (ip->i_format.rs != 29 || ip->i_format.rt != 29)
return 0;
- if (ip->i_format.opcode == addiu_op || ip->i_format.opcode == daddiu_op)
+
+ if (ip->i_format.opcode == addiu_op ||
+ ip->i_format.opcode == daddiu_op) {
+ *frame_size = -ip->i_format.simmediate;
return 1;
+ }
#endif
return 0;
}
@@ -348,7 +369,9 @@ static int get_frame_info(struct mips_frame_info *info)
bool is_mmips = IS_ENABLED(CONFIG_CPU_MICROMIPS);
union mips_instruction insn, *ip, *ip_end;
const unsigned int max_insns = 128;
+ unsigned int last_insn_size = 0;
unsigned int i;
+ bool saw_jump = false;
info->pc_offset = -1;
info->frame_size = 0;
@@ -359,47 +382,44 @@ static int get_frame_info(struct mips_frame_info *info)
ip_end = (void *)ip + info->func_size;
- for (i = 0; i < max_insns && ip < ip_end; i++, ip++) {
+ for (i = 0; i < max_insns && ip < ip_end; i++) {
+ ip = (void *)ip + last_insn_size;
if (is_mmips && mm_insn_16bit(ip->halfword[0])) {
- insn.halfword[0] = 0;
- insn.halfword[1] = ip->halfword[0];
+ insn.word = ip->halfword[0] << 16;
+ last_insn_size = 2;
} else if (is_mmips) {
- insn.halfword[0] = ip->halfword[1];
- insn.halfword[1] = ip->halfword[0];
+ insn.word = ip->halfword[0] << 16 | ip->halfword[1];
+ last_insn_size = 4;
} else {
insn.word = ip->word;
+ last_insn_size = 4;
}
- if (is_jump_ins(&insn))
- break;
-
if (!info->frame_size) {
- if (is_sp_move_ins(&insn))
- {
-#ifdef CONFIG_CPU_MICROMIPS
- if (mm_insn_16bit(ip->halfword[0]))
- {
- unsigned short tmp;
-
- if (ip->halfword[0] & mm_addiusp_func)
- {
- tmp = (((ip->halfword[0] >> 1) & 0x1ff) << 2);
- info->frame_size = -(signed short)(tmp | ((tmp & 0x100) ? 0xfe00 : 0));
- } else {
- tmp = (ip->halfword[0] >> 1);
- info->frame_size = -(signed short)(tmp & 0xf);
- }
- ip = (void *) &ip->halfword[1];
- ip--;
- } else
-#endif
- info->frame_size = - ip->i_format.simmediate;
- }
+ is_sp_move_ins(&insn, &info->frame_size);
+ continue;
+ } else if (!saw_jump && is_jump_ins(ip)) {
+ /*
+ * If we see a jump instruction, we are finished
+ * with the frame save.
+ *
+ * Some functions can have a shortcut return at
+ * the beginning of the function, so don't start
+ * looking for jump instruction until we see the
+ * frame setup.
+ *
+ * The RA save instruction can get put into the
+ * delay slot of the jump instruction, so look
+ * at the next instruction, too.
+ */
+ saw_jump = true;
continue;
}
if (info->pc_offset == -1 &&
is_ra_save_ins(&insn, &info->pc_offset))
break;
+ if (saw_jump)
+ break;
}
if (info->frame_size && info->pc_offset >= 0) /* nested */
return 0;
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 6931fe722a0b..1395654cfc8d 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -868,14 +868,37 @@ asmlinkage long syscall_trace_enter(struct pt_regs *regs, long syscall)
tracehook_report_syscall_entry(regs))
return -1;
- if (secure_computing(NULL) == -1)
- return -1;
+#ifdef CONFIG_SECCOMP
+ if (unlikely(test_thread_flag(TIF_SECCOMP))) {
+ int ret, i;
+ struct seccomp_data sd;
+ unsigned long args[6];
+
+ sd.nr = syscall;
+ sd.arch = syscall_get_arch();
+ syscall_get_arguments(current, regs, 0, 6, args);
+ for (i = 0; i < 6; i++)
+ sd.args[i] = args[i];
+ sd.instruction_pointer = KSTK_EIP(current);
+
+ ret = __secure_computing(&sd);
+ if (ret == -1)
+ return ret;
+ }
+#endif
if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
trace_sys_enter(regs, regs->regs[2]);
audit_syscall_entry(syscall, regs->regs[4], regs->regs[5],
regs->regs[6], regs->regs[7]);
+
+ /*
+ * Negative syscall numbers are mistaken for rejected syscalls, but
+ * won't have had the return value set appropriately, so we do so now.
+ */
+ if (syscall < 0)
+ syscall_set_return_value(current, regs, -ENOSYS, 0);
return syscall;
}
@@ -895,7 +918,7 @@ asmlinkage void syscall_trace_leave(struct pt_regs *regs)
audit_syscall_exit(regs);
if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
- trace_sys_exit(regs, regs->regs[2]);
+ trace_sys_exit(regs, regs_return_value(regs));
if (test_thread_flag(TIF_SYSCALL_TRACE))
tracehook_report_syscall_exit(regs, 0);
diff --git a/arch/mips/kernel/r2300_fpu.S b/arch/mips/kernel/r2300_fpu.S
index 918f2f6d3861..3062ba66c563 100644
--- a/arch/mips/kernel/r2300_fpu.S
+++ b/arch/mips/kernel/r2300_fpu.S
@@ -12,7 +12,9 @@
* Copyright (c) 1998 Harald Koerfgen
*/
#include <asm/asm.h>
+#include <asm/asmmacro.h>
#include <asm/errno.h>
+#include <asm/export.h>
#include <asm/fpregdef.h>
#include <asm/mipsregs.h>
#include <asm/asm-offsets.h>
@@ -31,9 +33,85 @@
PTR 9b+4,bad_stack; \
.previous
- .set noreorder
.set mips1
+/*
+ * Save a thread's fp context.
+ */
+LEAF(_save_fp)
+EXPORT_SYMBOL(_save_fp)
+ fpu_save_single a0, t1 # clobbers t1
+ jr ra
+ END(_save_fp)
+
+/*
+ * Restore a thread's fp context.
+ */
+LEAF(_restore_fp)
+ fpu_restore_single a0, t1 # clobbers t1
+ jr ra
+ END(_restore_fp)
+
+/*
+ * Load the FPU with signalling NANS. This bit pattern we're using has
+ * the property that no matter whether considered as single or as double
+ * precision represents signaling NANS.
+ *
+ * The value to initialize fcr31 to comes in $a0.
+ */
+
+ .set push
+ SET_HARDFLOAT
+
+LEAF(_init_fpu)
+ mfc0 t0, CP0_STATUS
+ li t1, ST0_CU1
+ or t0, t1
+ mtc0 t0, CP0_STATUS
+
+ ctc1 a0, fcr31
+
+ li t0, -1
+
+ mtc1 t0, $f0
+ mtc1 t0, $f1
+ mtc1 t0, $f2
+ mtc1 t0, $f3
+ mtc1 t0, $f4
+ mtc1 t0, $f5
+ mtc1 t0, $f6
+ mtc1 t0, $f7
+ mtc1 t0, $f8
+ mtc1 t0, $f9
+ mtc1 t0, $f10
+ mtc1 t0, $f11
+ mtc1 t0, $f12
+ mtc1 t0, $f13
+ mtc1 t0, $f14
+ mtc1 t0, $f15
+ mtc1 t0, $f16
+ mtc1 t0, $f17
+ mtc1 t0, $f18
+ mtc1 t0, $f19
+ mtc1 t0, $f20
+ mtc1 t0, $f21
+ mtc1 t0, $f22
+ mtc1 t0, $f23
+ mtc1 t0, $f24
+ mtc1 t0, $f25
+ mtc1 t0, $f26
+ mtc1 t0, $f27
+ mtc1 t0, $f28
+ mtc1 t0, $f29
+ mtc1 t0, $f30
+ mtc1 t0, $f31
+ jr ra
+ END(_init_fpu)
+
+ .set pop
+
+ .set noreorder
+
/**
* _save_fp_context() - save FP context from the FPU
* @a0 - pointer to fpregs field of sigcontext
diff --git a/arch/mips/kernel/r2300_switch.S b/arch/mips/kernel/r2300_switch.S
index 1049eeafd97d..e57703b1de50 100644
--- a/arch/mips/kernel/r2300_switch.S
+++ b/arch/mips/kernel/r2300_switch.S
@@ -26,12 +26,6 @@
.align 5
/*
- * Offset to the current process status flags, the first 32 bytes of the
- * stack are not used.
- */
-#define ST_OFF (_THREAD_SIZE - 32 - PT_SIZE + PT_STATUS)
-
-/*
* task_struct *resume(task_struct *prev, task_struct *next,
* struct thread_info *next_ti)
*/
@@ -68,78 +62,3 @@ LEAF(resume)
move v0, a0
jr ra
END(resume)
-
-/*
- * Save a thread's fp context.
- */
-LEAF(_save_fp)
-EXPORT_SYMBOL(_save_fp)
- fpu_save_single a0, t1 # clobbers t1
- jr ra
- END(_save_fp)
-
-/*
- * Restore a thread's fp context.
- */
-LEAF(_restore_fp)
- fpu_restore_single a0, t1 # clobbers t1
- jr ra
- END(_restore_fp)
-
-/*
- * Load the FPU with signalling NANS. This bit pattern we're using has
- * the property that no matter whether considered as single or as double
- * precision represents signaling NANS.
- *
- * The value to initialize fcr31 to comes in $a0.
- */
-
- .set push
- SET_HARDFLOAT
-
-LEAF(_init_fpu)
- mfc0 t0, CP0_STATUS
- li t1, ST0_CU1
- or t0, t1
- mtc0 t0, CP0_STATUS
-
- ctc1 a0, fcr31
-
- li t0, -1
-
- mtc1 t0, $f0
- mtc1 t0, $f1
- mtc1 t0, $f2
- mtc1 t0, $f3
- mtc1 t0, $f4
- mtc1 t0, $f5
- mtc1 t0, $f6
- mtc1 t0, $f7
- mtc1 t0, $f8
- mtc1 t0, $f9
- mtc1 t0, $f10
- mtc1 t0, $f11
- mtc1 t0, $f12
- mtc1 t0, $f13
- mtc1 t0, $f14
- mtc1 t0, $f15
- mtc1 t0, $f16
- mtc1 t0, $f17
- mtc1 t0, $f18
- mtc1 t0, $f19
- mtc1 t0, $f20
- mtc1 t0, $f21
- mtc1 t0, $f22
- mtc1 t0, $f23
- mtc1 t0, $f24
- mtc1 t0, $f25
- mtc1 t0, $f26
- mtc1 t0, $f27
- mtc1 t0, $f28
- mtc1 t0, $f29
- mtc1 t0, $f30
- mtc1 t0, $f31
- jr ra
- END(_init_fpu)
-
- .set pop
diff --git a/arch/mips/kernel/r4k_fpu.S b/arch/mips/kernel/r4k_fpu.S
index 56d86b09c917..0a83b1708b3c 100644
--- a/arch/mips/kernel/r4k_fpu.S
+++ b/arch/mips/kernel/r4k_fpu.S
@@ -15,6 +15,7 @@
#include <asm/asm.h>
#include <asm/asmmacro.h>
#include <asm/errno.h>
+#include <asm/export.h>
#include <asm/fpregdef.h>
#include <asm/mipsregs.h>
#include <asm/asm-offsets.h>
@@ -34,6 +35,201 @@
.previous
.endm
+/*
+ * Save a thread's fp context.
+ */
+LEAF(_save_fp)
+EXPORT_SYMBOL(_save_fp)
+#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2) || \
+ defined(CONFIG_CPU_MIPS32_R6)
+ mfc0 t0, CP0_STATUS
+#endif
+ fpu_save_double a0 t0 t1 # clobbers t1
+ jr ra
+ END(_save_fp)
+
+/*
+ * Restore a thread's fp context.
+ */
+LEAF(_restore_fp)
+#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2) || \
+ defined(CONFIG_CPU_MIPS32_R6)
+ mfc0 t0, CP0_STATUS
+#endif
+ fpu_restore_double a0 t0 t1 # clobbers t1
+ jr ra
+ END(_restore_fp)
+
+#ifdef CONFIG_CPU_HAS_MSA
+
+/*
+ * Save a thread's MSA vector context.
+ */
+LEAF(_save_msa)
+EXPORT_SYMBOL(_save_msa)
+ msa_save_all a0
+ jr ra
+ END(_save_msa)
+
+/*
+ * Restore a thread's MSA vector context.
+ */
+LEAF(_restore_msa)
+ msa_restore_all a0
+ jr ra
+ END(_restore_msa)
+
+LEAF(_init_msa_upper)
+ msa_init_all_upper
+ jr ra
+ END(_init_msa_upper)
+
+#endif
+
+/*
+ * Load the FPU with signalling NANS. This bit pattern we're using has
+ * the property that no matter whether considered as single or as double
+ * precision represents signaling NANS.
+ *
+ * The value to initialize fcr31 to comes in $a0.
+ */
+
+ .set push
+ SET_HARDFLOAT
+
+LEAF(_init_fpu)
+ mfc0 t0, CP0_STATUS
+ li t1, ST0_CU1
+ or t0, t1
+ mtc0 t0, CP0_STATUS
+ enable_fpu_hazard
+
+ ctc1 a0, fcr31
+
+ li t1, -1 # SNaN
+
+#ifdef CONFIG_64BIT
+ sll t0, t0, 5
+ bgez t0, 1f # 16 / 32 register mode?
+
+ dmtc1 t1, $f1
+ dmtc1 t1, $f3
+ dmtc1 t1, $f5
+ dmtc1 t1, $f7
+ dmtc1 t1, $f9
+ dmtc1 t1, $f11
+ dmtc1 t1, $f13
+ dmtc1 t1, $f15
+ dmtc1 t1, $f17
+ dmtc1 t1, $f19
+ dmtc1 t1, $f21
+ dmtc1 t1, $f23
+ dmtc1 t1, $f25
+ dmtc1 t1, $f27
+ dmtc1 t1, $f29
+ dmtc1 t1, $f31
+1:
+#endif
+
+#ifdef CONFIG_CPU_MIPS32
+ mtc1 t1, $f0
+ mtc1 t1, $f1
+ mtc1 t1, $f2
+ mtc1 t1, $f3
+ mtc1 t1, $f4
+ mtc1 t1, $f5
+ mtc1 t1, $f6
+ mtc1 t1, $f7
+ mtc1 t1, $f8
+ mtc1 t1, $f9
+ mtc1 t1, $f10
+ mtc1 t1, $f11
+ mtc1 t1, $f12
+ mtc1 t1, $f13
+ mtc1 t1, $f14
+ mtc1 t1, $f15
+ mtc1 t1, $f16
+ mtc1 t1, $f17
+ mtc1 t1, $f18
+ mtc1 t1, $f19
+ mtc1 t1, $f20
+ mtc1 t1, $f21
+ mtc1 t1, $f22
+ mtc1 t1, $f23
+ mtc1 t1, $f24
+ mtc1 t1, $f25
+ mtc1 t1, $f26
+ mtc1 t1, $f27
+ mtc1 t1, $f28
+ mtc1 t1, $f29
+ mtc1 t1, $f30
+ mtc1 t1, $f31
+
+#if defined(CONFIG_CPU_MIPS32_R2) || defined(CONFIG_CPU_MIPS32_R6)
+ .set push
+ .set MIPS_ISA_LEVEL_RAW
+ .set fp=64
+ sll t0, t0, 5 # is Status.FR set?
+ bgez t0, 1f # no: skip setting upper 32b
+
+ mthc1 t1, $f0
+ mthc1 t1, $f1
+ mthc1 t1, $f2
+ mthc1 t1, $f3
+ mthc1 t1, $f4
+ mthc1 t1, $f5
+ mthc1 t1, $f6
+ mthc1 t1, $f7
+ mthc1 t1, $f8
+ mthc1 t1, $f9
+ mthc1 t1, $f10
+ mthc1 t1, $f11
+ mthc1 t1, $f12
+ mthc1 t1, $f13
+ mthc1 t1, $f14
+ mthc1 t1, $f15
+ mthc1 t1, $f16
+ mthc1 t1, $f17
+ mthc1 t1, $f18
+ mthc1 t1, $f19
+ mthc1 t1, $f20
+ mthc1 t1, $f21
+ mthc1 t1, $f22
+ mthc1 t1, $f23
+ mthc1 t1, $f24
+ mthc1 t1, $f25
+ mthc1 t1, $f26
+ mthc1 t1, $f27
+ mthc1 t1, $f28
+ mthc1 t1, $f29
+ mthc1 t1, $f30
+ mthc1 t1, $f31
+1: .set pop
+#endif /* CONFIG_CPU_MIPS32_R2 || CONFIG_CPU_MIPS32_R6 */
+#else
+ .set MIPS_ISA_ARCH_LEVEL_RAW
+ dmtc1 t1, $f0
+ dmtc1 t1, $f2
+ dmtc1 t1, $f4
+ dmtc1 t1, $f6
+ dmtc1 t1, $f8
+ dmtc1 t1, $f10
+ dmtc1 t1, $f12
+ dmtc1 t1, $f14
+ dmtc1 t1, $f16
+ dmtc1 t1, $f18
+ dmtc1 t1, $f20
+ dmtc1 t1, $f22
+ dmtc1 t1, $f24
+ dmtc1 t1, $f26
+ dmtc1 t1, $f28
+ dmtc1 t1, $f30
+#endif
+ jr ra
+ END(_init_fpu)
+
+ .set pop /* SET_HARDFLOAT */
+
.set noreorder
/**
diff --git a/arch/mips/kernel/r4k_switch.S b/arch/mips/kernel/r4k_switch.S
index 7b386d54fd65..17cf9341c1cf 100644
--- a/arch/mips/kernel/r4k_switch.S
+++ b/arch/mips/kernel/r4k_switch.S
@@ -12,8 +12,6 @@
*/
#include <asm/asm.h>
#include <asm/cachectl.h>
-#include <asm/export.h>
-#include <asm/fpregdef.h>
#include <asm/mipsregs.h>
#include <asm/asm-offsets.h>
#include <asm/regdef.h>
@@ -22,10 +20,6 @@
#include <asm/asmmacro.h>
-/* preprocessor replaces the fp in ".set fp=64" with $30 otherwise */
-#undef fp
-
-#ifndef USE_ALTERNATE_RESUME_IMPL
/*
* task_struct *resume(task_struct *prev, task_struct *next,
* struct thread_info *next_ti)
@@ -63,200 +57,3 @@
move v0, a0
jr ra
END(resume)
-
-#endif /* USE_ALTERNATE_RESUME_IMPL */
-
-/*
- * Save a thread's fp context.
- */
-LEAF(_save_fp)
-EXPORT_SYMBOL(_save_fp)
-#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2) || \
- defined(CONFIG_CPU_MIPS32_R6)
- mfc0 t0, CP0_STATUS
-#endif
- fpu_save_double a0 t0 t1 # clobbers t1
- jr ra
- END(_save_fp)
-
-/*
- * Restore a thread's fp context.
- */
-LEAF(_restore_fp)
-#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2) || \
- defined(CONFIG_CPU_MIPS32_R6)
- mfc0 t0, CP0_STATUS
-#endif
- fpu_restore_double a0 t0 t1 # clobbers t1
- jr ra
- END(_restore_fp)
-
-#ifdef CONFIG_CPU_HAS_MSA
-
-/*
- * Save a thread's MSA vector context.
- */
-LEAF(_save_msa)
-EXPORT_SYMBOL(_save_msa)
- msa_save_all a0
- jr ra
- END(_save_msa)
-
-/*
- * Restore a thread's MSA vector context.
- */
-LEAF(_restore_msa)
- msa_restore_all a0
- jr ra
- END(_restore_msa)
-
-LEAF(_init_msa_upper)
- msa_init_all_upper
- jr ra
- END(_init_msa_upper)
-
-#endif
-
-/*
- * Load the FPU with signalling NANS. This bit pattern we're using has
- * the property that no matter whether considered as single or as double
- * precision represents signaling NANS.
- *
- * The value to initialize fcr31 to comes in $a0.
- */
-
- .set push
- SET_HARDFLOAT
-
-LEAF(_init_fpu)
- mfc0 t0, CP0_STATUS
- li t1, ST0_CU1
- or t0, t1
- mtc0 t0, CP0_STATUS
- enable_fpu_hazard
-
- ctc1 a0, fcr31
-
- li t1, -1 # SNaN
-
-#ifdef CONFIG_64BIT
- sll t0, t0, 5
- bgez t0, 1f # 16 / 32 register mode?
-
- dmtc1 t1, $f1
- dmtc1 t1, $f3
- dmtc1 t1, $f5
- dmtc1 t1, $f7
- dmtc1 t1, $f9
- dmtc1 t1, $f11
- dmtc1 t1, $f13
- dmtc1 t1, $f15
- dmtc1 t1, $f17
- dmtc1 t1, $f19
- dmtc1 t1, $f21
- dmtc1 t1, $f23
- dmtc1 t1, $f25
- dmtc1 t1, $f27
- dmtc1 t1, $f29
- dmtc1 t1, $f31
-1:
-#endif
-
-#ifdef CONFIG_CPU_MIPS32
- mtc1 t1, $f0
- mtc1 t1, $f1
- mtc1 t1, $f2
- mtc1 t1, $f3
- mtc1 t1, $f4
- mtc1 t1, $f5
- mtc1 t1, $f6
- mtc1 t1, $f7
- mtc1 t1, $f8
- mtc1 t1, $f9
- mtc1 t1, $f10
- mtc1 t1, $f11
- mtc1 t1, $f12
- mtc1 t1, $f13
- mtc1 t1, $f14
- mtc1 t1, $f15
- mtc1 t1, $f16
- mtc1 t1, $f17
- mtc1 t1, $f18
- mtc1 t1, $f19
- mtc1 t1, $f20
- mtc1 t1, $f21
- mtc1 t1, $f22
- mtc1 t1, $f23
- mtc1 t1, $f24
- mtc1 t1, $f25
- mtc1 t1, $f26
- mtc1 t1, $f27
- mtc1 t1, $f28
- mtc1 t1, $f29
- mtc1 t1, $f30
- mtc1 t1, $f31
-
-#if defined(CONFIG_CPU_MIPS32_R2) || defined(CONFIG_CPU_MIPS32_R6)
- .set push
- .set MIPS_ISA_LEVEL_RAW
- .set fp=64
- sll t0, t0, 5 # is Status.FR set?
- bgez t0, 1f # no: skip setting upper 32b
-
- mthc1 t1, $f0
- mthc1 t1, $f1
- mthc1 t1, $f2
- mthc1 t1, $f3
- mthc1 t1, $f4
- mthc1 t1, $f5
- mthc1 t1, $f6
- mthc1 t1, $f7
- mthc1 t1, $f8
- mthc1 t1, $f9
- mthc1 t1, $f10
- mthc1 t1, $f11
- mthc1 t1, $f12
- mthc1 t1, $f13
- mthc1 t1, $f14
- mthc1 t1, $f15
- mthc1 t1, $f16
- mthc1 t1, $f17
- mthc1 t1, $f18
- mthc1 t1, $f19
- mthc1 t1, $f20
- mthc1 t1, $f21
- mthc1 t1, $f22
- mthc1 t1, $f23
- mthc1 t1, $f24
- mthc1 t1, $f25
- mthc1 t1, $f26
- mthc1 t1, $f27
- mthc1 t1, $f28
- mthc1 t1, $f29
- mthc1 t1, $f30
- mthc1 t1, $f31
-1: .set pop
-#endif /* CONFIG_CPU_MIPS32_R2 || CONFIG_CPU_MIPS32_R6 */
-#else
- .set MIPS_ISA_ARCH_LEVEL_RAW
- dmtc1 t1, $f0
- dmtc1 t1, $f2
- dmtc1 t1, $f4
- dmtc1 t1, $f6
- dmtc1 t1, $f8
- dmtc1 t1, $f10
- dmtc1 t1, $f12
- dmtc1 t1, $f14
- dmtc1 t1, $f16
- dmtc1 t1, $f18
- dmtc1 t1, $f20
- dmtc1 t1, $f22
- dmtc1 t1, $f24
- dmtc1 t1, $f26
- dmtc1 t1, $f28
- dmtc1 t1, $f30
-#endif
- jr ra
- END(_init_fpu)
-
- .set pop /* SET_HARDFLOAT */
diff --git a/arch/mips/kernel/r6000_fpu.S b/arch/mips/kernel/r6000_fpu.S
deleted file mode 100644
index 9cc7bfab3419..000000000000
--- a/arch/mips/kernel/r6000_fpu.S
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * r6000_fpu.S: Save/restore floating point context for signal handlers.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1996 by Ralf Baechle
- *
- * Multi-arch abstraction and asm macros for easier reading:
- * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
- */
-#include <asm/asm.h>
-#include <asm/fpregdef.h>
-#include <asm/mipsregs.h>
-#include <asm/asm-offsets.h>
-#include <asm/regdef.h>
-
- .set noreorder
- .set mips2
- .set push
- SET_HARDFLOAT
-
-/**
- * _save_fp_context() - save FP context from the FPU
- * @a0 - pointer to fpregs field of sigcontext
- * @a1 - pointer to fpc_csr field of sigcontext
- *
- * Save FP context, including the 32 FP data registers and the FP
- * control & status register, from the FPU to signal context.
- */
- LEAF(_save_fp_context)
- mfc0 t0,CP0_STATUS
- sll t0,t0,2
- bgez t0,1f
- nop
-
- cfc1 t1,fcr31
- /* Store the 16 double precision registers */
- sdc1 $f0,0(a0)
- sdc1 $f2,16(a0)
- sdc1 $f4,32(a0)
- sdc1 $f6,48(a0)
- sdc1 $f8,64(a0)
- sdc1 $f10,80(a0)
- sdc1 $f12,96(a0)
- sdc1 $f14,112(a0)
- sdc1 $f16,128(a0)
- sdc1 $f18,144(a0)
- sdc1 $f20,160(a0)
- sdc1 $f22,176(a0)
- sdc1 $f24,192(a0)
- sdc1 $f26,208(a0)
- sdc1 $f28,224(a0)
- sdc1 $f30,240(a0)
- jr ra
- sw t0,(a1)
-1: jr ra
- nop
- END(_save_fp_context)
-
-/**
- * _restore_fp_context() - restore FP context to the FPU
- * @a0 - pointer to fpregs field of sigcontext
- * @a1 - pointer to fpc_csr field of sigcontext
- *
- * Restore FP context, including the 32 FP data registers and the FP
- * control & status register, from signal context to the FPU.
- */
- LEAF(_restore_fp_context)
- mfc0 t0,CP0_STATUS
- sll t0,t0,2
-
- bgez t0,1f
- lw t0,(a1)
- /* Restore the 16 double precision registers */
- ldc1 $f0,0(a0)
- ldc1 $f2,16(a0)
- ldc1 $f4,32(a0)
- ldc1 $f6,48(a0)
- ldc1 $f8,64(a0)
- ldc1 $f10,80(a0)
- ldc1 $f12,96(a0)
- ldc1 $f14,112(a0)
- ldc1 $f16,128(a0)
- ldc1 $f18,144(a0)
- ldc1 $f20,160(a0)
- ldc1 $f22,176(a0)
- ldc1 $f24,192(a0)
- ldc1 $f26,208(a0)
- ldc1 $f28,224(a0)
- ldc1 $f30,240(a0)
- jr ra
- ctc1 t0,fcr31
-1: jr ra
- nop
- END(_restore_fp_context)
-
- .set pop /* SET_HARDFLOAT */
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 80ed68b2c95e..a9a7d78803cd 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -190,12 +190,6 @@ illegal_syscall:
sll t1, t0, 2
beqz v0, einval
lw t2, sys_call_table(t1) # syscall routine
- sw a0, PT_R2(sp) # call routine directly on restart
-
- /* Some syscalls like execve get their arguments from struct pt_regs
- and claim zero arguments in the syscall table. Thus we have to
- assume the worst case and shuffle around all potential arguments.
- If you want performance, don't use indirect syscalls. */
move a0, a1 # shift argument registers
move a1, a2
@@ -207,11 +201,6 @@ illegal_syscall:
sw t4, 16(sp)
sw t5, 20(sp)
sw t6, 24(sp)
- sw a0, PT_R4(sp) # .. and push back a0 - a3, some
- sw a1, PT_R5(sp) # syscalls expect them there
- sw a2, PT_R6(sp)
- sw a3, PT_R7(sp)
- sw a3, PT_R26(sp) # update a3 for syscall restarting
jr t2
/* Unreached */
@@ -371,7 +360,7 @@ EXPORT(sys_call_table)
PTR sys_writev
PTR sys_cacheflush
PTR sys_cachectl
- PTR sys_sysmips
+ PTR __sys_sysmips
PTR sys_ni_syscall /* 4150 */
PTR sys_getsid
PTR sys_fdatasync
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index 49765b44aa9b..65d5aeeb9bdb 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -311,7 +311,7 @@ EXPORT(sys_call_table)
PTR sys_sched_getaffinity
PTR sys_cacheflush
PTR sys_cachectl
- PTR sys_sysmips
+ PTR __sys_sysmips
PTR sys_io_setup /* 5200 */
PTR sys_io_destroy
PTR sys_io_getevents
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 90bad2d1b2d3..cbf190ef9e8a 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -302,7 +302,7 @@ EXPORT(sysn32_call_table)
PTR compat_sys_sched_getaffinity
PTR sys_cacheflush
PTR sys_cachectl
- PTR sys_sysmips
+ PTR __sys_sysmips
PTR compat_sys_io_setup /* 6200 */
PTR sys_io_destroy
PTR compat_sys_io_getevents
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 2dd70bd104e1..9ebe3e2403b1 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -198,7 +198,6 @@ LEAF(sys32_syscall)
dsll t1, t0, 3
beqz v0, einval
ld t2, sys32_call_table(t1) # syscall routine
- sd a0, PT_R2(sp) # call routine directly on restart
move a0, a1 # shift argument registers
move a1, a2
@@ -207,11 +206,6 @@ LEAF(sys32_syscall)
move a4, a5
move a5, a6
move a6, a7
- sd a0, PT_R4(sp) # ... and push back a0 - a3, some
- sd a1, PT_R5(sp) # syscalls expect them there
- sd a2, PT_R6(sp)
- sd a3, PT_R7(sp)
- sd a3, PT_R26(sp) # update a3 for syscall restarting
jr t2
/* Unreached */
@@ -371,7 +365,7 @@ EXPORT(sys32_call_table)
PTR compat_sys_writev
PTR sys_cacheflush
PTR sys_cachectl
- PTR sys_sysmips
+ PTR __sys_sysmips
PTR sys_ni_syscall /* 4150 */
PTR sys_getsid
PTR sys_fdatasync
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 01d1dbde5fbf..fe3939726765 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -670,6 +670,46 @@ static int __init early_parse_mem(char *p)
}
early_param("mem", early_parse_mem);
+static int __init early_parse_memmap(char *p)
+{
+ char *oldp;
+ u64 start_at, mem_size;
+
+ if (!p)
+ return -EINVAL;
+
+ if (!strncmp(p, "exactmap", 8)) {
+ pr_err("\"memmap=exactmap\" invalid on MIPS\n");
+ return 0;
+ }
+
+ oldp = p;
+ mem_size = memparse(p, &p);
+ if (p == oldp)
+ return -EINVAL;
+
+ if (*p == '@') {
+ start_at = memparse(p+1, &p);
+ add_memory_region(start_at, mem_size, BOOT_MEM_RAM);
+ } else if (*p == '#') {
+ pr_err("\"memmap=nn#ss\" (force ACPI data) invalid on MIPS\n");
+ return -EINVAL;
+ } else if (*p == '$') {
+ start_at = memparse(p+1, &p);
+ add_memory_region(start_at, mem_size, BOOT_MEM_RESERVED);
+ } else {
+ pr_err("\"memmap\" invalid format!\n");
+ return -EINVAL;
+ }
+
+ if (*p == '\0') {
+ usermem = 1;
+ return 0;
+ } else
+ return -EINVAL;
+}
+early_param("memmap", early_parse_memmap);
+
#ifdef CONFIG_PROC_VMCORE
unsigned long setup_elfcorehdr, setup_elfcorehdr_size;
static int __init early_parse_elfcorehdr(char *p)
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index 84165f2b31ff..cf5c7c05e5a3 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -93,38 +93,37 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
at the same time. */
err = __put_user(from->si_signo, &to->si_signo);
err |= __put_user(from->si_errno, &to->si_errno);
- err |= __put_user((short)from->si_code, &to->si_code);
+ err |= __put_user(from->si_code, &to->si_code);
if (from->si_code < 0)
err |= __copy_to_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE);
else {
- switch (from->si_code >> 16) {
- case __SI_TIMER >> 16:
+ switch (siginfo_layout(from->si_signo, from->si_code)) {
+ case SIL_TIMER:
err |= __put_user(from->si_tid, &to->si_tid);
err |= __put_user(from->si_overrun, &to->si_overrun);
err |= __put_user(from->si_int, &to->si_int);
break;
- case __SI_CHLD >> 16:
+ case SIL_CHLD:
err |= __put_user(from->si_utime, &to->si_utime);
err |= __put_user(from->si_stime, &to->si_stime);
err |= __put_user(from->si_status, &to->si_status);
- default:
+ case SIL_KILL:
err |= __put_user(from->si_pid, &to->si_pid);
err |= __put_user(from->si_uid, &to->si_uid);
break;
- case __SI_FAULT >> 16:
+ case SIL_FAULT:
err |= __put_user((unsigned long)from->si_addr, &to->si_addr);
break;
- case __SI_POLL >> 16:
+ case SIL_POLL:
err |= __put_user(from->si_band, &to->si_band);
err |= __put_user(from->si_fd, &to->si_fd);
break;
- case __SI_RT >> 16: /* This is not generated by the kernel as of now. */
- case __SI_MESGQ >> 16:
+ case SIL_RT:
err |= __put_user(from->si_pid, &to->si_pid);
err |= __put_user(from->si_uid, &to->si_uid);
err |= __put_user(from->si_int, &to->si_int);
break;
- case __SI_SYS >> 16:
+ case SIL_SYS:
err |= __copy_to_user(&to->si_call_addr, &from->si_call_addr,
sizeof(compat_uptr_t));
err |= __put_user(from->si_syscall, &to->si_syscall);
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
index 1b070a76fcdd..406072e26752 100644
--- a/arch/mips/kernel/smp-bmips.c
+++ b/arch/mips/kernel/smp-bmips.c
@@ -179,7 +179,7 @@ static void bmips_prepare_cpus(unsigned int max_cpus)
/*
* Tell the hardware to boot CPUx - runs on CPU0
*/
-static void bmips_boot_secondary(int cpu, struct task_struct *idle)
+static int bmips_boot_secondary(int cpu, struct task_struct *idle)
{
bmips_smp_boot_sp = __KSTK_TOS(idle);
bmips_smp_boot_gp = (unsigned long)task_thread_info(idle);
@@ -231,6 +231,8 @@ static void bmips_boot_secondary(int cpu, struct task_struct *idle)
}
cpumask_set_cpu(cpu, &bmips_booted_mask);
}
+
+ return 0;
}
/*
@@ -245,7 +247,7 @@ static void bmips_init_secondary(void)
break;
case CPU_BMIPS5000:
write_c0_brcm_action(ACTION_CLR_IPI(smp_processor_id(), 0));
- current_cpu_data.core = (read_c0_brcm_config() >> 25) & 3;
+ cpu_set_core(&current_cpu_data, (read_c0_brcm_config() >> 25) & 3);
break;
}
}
@@ -409,7 +411,7 @@ void __ref play_dead(void)
#endif /* CONFIG_HOTPLUG_CPU */
-struct plat_smp_ops bmips43xx_smp_ops = {
+const struct plat_smp_ops bmips43xx_smp_ops = {
.smp_setup = bmips_smp_setup,
.prepare_cpus = bmips_prepare_cpus,
.boot_secondary = bmips_boot_secondary,
@@ -423,7 +425,7 @@ struct plat_smp_ops bmips43xx_smp_ops = {
#endif
};
-struct plat_smp_ops bmips5000_smp_ops = {
+const struct plat_smp_ops bmips5000_smp_ops = {
.smp_setup = bmips_smp_setup,
.prepare_cpus = bmips_prepare_cpus,
.boot_secondary = bmips_boot_secondary,
diff --git a/arch/mips/kernel/smp-cmp.c b/arch/mips/kernel/smp-cmp.c
index 76923349b4fe..05295a4909f1 100644
--- a/arch/mips/kernel/smp-cmp.c
+++ b/arch/mips/kernel/smp-cmp.c
@@ -24,7 +24,6 @@
#include <linux/cpumask.h>
#include <linux/interrupt.h>
#include <linux/compiler.h>
-#include <linux/irqchip/mips-gic.h>
#include <linux/atomic.h>
#include <asm/cacheflush.h>
@@ -78,7 +77,7 @@ static void cmp_smp_finish(void)
* __KSTK_TOS(idle) is apparently the stack pointer
* (unsigned long)idle->thread_info the gp
*/
-static void cmp_boot_secondary(int cpu, struct task_struct *idle)
+static int cmp_boot_secondary(int cpu, struct task_struct *idle)
{
struct thread_info *gp = task_thread_info(idle);
unsigned long sp = __KSTK_TOS(idle);
@@ -95,6 +94,7 @@ static void cmp_boot_secondary(int cpu, struct task_struct *idle)
#endif
amon_cpu_start(cpu, pc, sp, (unsigned long)gp, a0);
+ return 0;
}
/*
@@ -148,7 +148,7 @@ void __init cmp_prepare_cpus(unsigned int max_cpus)
}
-struct plat_smp_ops cmp_smp_ops = {
+const struct plat_smp_ops cmp_smp_ops = {
.send_ipi_single = mips_smp_send_ipi_single,
.send_ipi_mask = mips_smp_send_ipi_mask,
.init_secondary = cmp_init_secondary,
diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c
index 36954ddd0b9f..0063122c85da 100644
--- a/arch/mips/kernel/smp-cps.c
+++ b/arch/mips/kernel/smp-cps.c
@@ -11,7 +11,6 @@
#include <linux/cpu.h>
#include <linux/delay.h>
#include <linux/io.h>
-#include <linux/irqchip/mips-gic.h>
#include <linux/sched/task_stack.h>
#include <linux/sched/hotplug.h>
#include <linux/slab.h>
@@ -19,8 +18,7 @@
#include <linux/types.h>
#include <asm/bcache.h>
-#include <asm/mips-cm.h>
-#include <asm/mips-cpc.h>
+#include <asm/mips-cps.h>
#include <asm/mips_mt.h>
#include <asm/mipsregs.h>
#include <asm/pm-cps.h>
@@ -41,55 +39,58 @@ static int __init setup_nothreads(char *s)
}
early_param("nothreads", setup_nothreads);
-static unsigned core_vpe_count(unsigned core)
+static unsigned core_vpe_count(unsigned int cluster, unsigned core)
{
- unsigned cfg;
-
if (threads_disabled)
return 1;
- if ((!IS_ENABLED(CONFIG_MIPS_MT_SMP) || !cpu_has_mipsmt)
- && (!IS_ENABLED(CONFIG_CPU_MIPSR6) || !cpu_has_vp))
- return 1;
-
- mips_cm_lock_other(core, 0);
- cfg = read_gcr_co_config() & CM_GCR_Cx_CONFIG_PVPE_MSK;
- mips_cm_unlock_other();
- return (cfg >> CM_GCR_Cx_CONFIG_PVPE_SHF) + 1;
+ return mips_cps_numvps(cluster, core);
}
static void __init cps_smp_setup(void)
{
- unsigned int ncores, nvpes, core_vpes;
+ unsigned int nclusters, ncores, nvpes, core_vpes;
unsigned long core_entry;
- int c, v;
+ int cl, c, v;
/* Detect & record VPE topology */
- ncores = mips_cm_numcores();
+ nvpes = 0;
+ nclusters = mips_cps_numclusters();
pr_info("%s topology ", cpu_has_mips_r6 ? "VP" : "VPE");
- for (c = nvpes = 0; c < ncores; c++) {
- core_vpes = core_vpe_count(c);
- pr_cont("%c%u", c ? ',' : '{', core_vpes);
-
- /* Use the number of VPEs in core 0 for smp_num_siblings */
- if (!c)
- smp_num_siblings = core_vpes;
-
- for (v = 0; v < min_t(int, core_vpes, NR_CPUS - nvpes); v++) {
- cpu_data[nvpes + v].core = c;
-#if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_CPU_MIPSR6)
- cpu_data[nvpes + v].vpe_id = v;
-#endif
+ for (cl = 0; cl < nclusters; cl++) {
+ if (cl > 0)
+ pr_cont(",");
+ pr_cont("{");
+
+ ncores = mips_cps_numcores(cl);
+ for (c = 0; c < ncores; c++) {
+ core_vpes = core_vpe_count(cl, c);
+
+ if (c > 0)
+ pr_cont(",");
+ pr_cont("%u", core_vpes);
+
+ /* Use the number of VPEs in cluster 0 core 0 for smp_num_siblings */
+ if (!cl && !c)
+ smp_num_siblings = core_vpes;
+
+ for (v = 0; v < min_t(int, core_vpes, NR_CPUS - nvpes); v++) {
+ cpu_set_cluster(&cpu_data[nvpes + v], cl);
+ cpu_set_core(&cpu_data[nvpes + v], c);
+ cpu_set_vpe_id(&cpu_data[nvpes + v], v);
+ }
+
+ nvpes += core_vpes;
}
- nvpes += core_vpes;
+ pr_cont("}");
}
- pr_cont("} total %u\n", nvpes);
+ pr_cont(" total %u\n", nvpes);
/* Indicate present CPUs (CPU being synonymous with VPE) */
for (v = 0; v < min_t(unsigned, nvpes, NR_CPUS); v++) {
- set_cpu_possible(v, true);
- set_cpu_present(v, true);
+ set_cpu_possible(v, cpu_cluster(&cpu_data[v]) == 0);
+ set_cpu_present(v, cpu_cluster(&cpu_data[v]) == 0);
__cpu_number_map[v] = v;
__cpu_logical_map[v] = v;
}
@@ -121,7 +122,7 @@ static void __init cps_smp_setup(void)
static void __init cps_prepare_cpus(unsigned int max_cpus)
{
unsigned ncores, core_vpes, c, cca;
- bool cca_unsuitable;
+ bool cca_unsuitable, cores_limited;
u32 *entry_code;
mips_mt_set_cpuoptions();
@@ -141,16 +142,21 @@ static void __init cps_prepare_cpus(unsigned int max_cpus)
}
/* Warn the user if the CCA prevents multi-core */
- ncores = mips_cm_numcores();
- if (cca_unsuitable && ncores > 1) {
- pr_warn("Using only one core due to unsuitable CCA 0x%x\n",
- cca);
-
+ cores_limited = false;
+ if (cca_unsuitable || cpu_has_dc_aliases) {
for_each_present_cpu(c) {
- if (cpu_data[c].core)
- set_cpu_present(c, false);
+ if (cpus_are_siblings(smp_processor_id(), c))
+ continue;
+
+ set_cpu_present(c, false);
+ cores_limited = true;
}
}
+ if (cores_limited)
+ pr_warn("Using only one core due to %s%s%s\n",
+ cca_unsuitable ? "unsuitable CCA" : "",
+ (cca_unsuitable && cpu_has_dc_aliases) ? " & " : "",
+ cpu_has_dc_aliases ? "dcache aliasing" : "");
/*
* Patch the start of mips_cps_core_entry to provide:
@@ -166,6 +172,7 @@ static void __init cps_prepare_cpus(unsigned int max_cpus)
__sync();
/* Allocate core boot configuration structs */
+ ncores = mips_cps_numcores(0);
mips_cps_core_bootcfg = kcalloc(ncores, sizeof(*mips_cps_core_bootcfg),
GFP_KERNEL);
if (!mips_cps_core_bootcfg) {
@@ -175,7 +182,7 @@ static void __init cps_prepare_cpus(unsigned int max_cpus)
/* Allocate VPE boot configuration structs */
for (c = 0; c < ncores; c++) {
- core_vpes = core_vpe_count(c);
+ core_vpes = core_vpe_count(0, c);
mips_cps_core_bootcfg[c].vpe_config = kcalloc(core_vpes,
sizeof(*mips_cps_core_bootcfg[c].vpe_config),
GFP_KERNEL);
@@ -187,7 +194,7 @@ static void __init cps_prepare_cpus(unsigned int max_cpus)
}
/* Mark this CPU as booted */
- atomic_set(&mips_cps_core_bootcfg[current_cpu_data.core].vpe_mask,
+ atomic_set(&mips_cps_core_bootcfg[cpu_core(&current_cpu_data)].vpe_mask,
1 << cpu_vpe_id(&current_cpu_data));
return;
@@ -210,11 +217,11 @@ err_out:
static void boot_core(unsigned int core, unsigned int vpe_id)
{
- u32 access, stat, seq_state;
+ u32 stat, seq_state;
unsigned timeout;
/* Select the appropriate core */
- mips_cm_lock_other(core, 0);
+ mips_cm_lock_other(0, core, 0, CM_GCR_Cx_OTHER_BLOCK_LOCAL);
/* Set its reset vector */
write_gcr_co_reset_base(CKSEG1ADDR((unsigned long)mips_cps_core_entry));
@@ -223,12 +230,10 @@ static void boot_core(unsigned int core, unsigned int vpe_id)
write_gcr_co_coherence(0);
/* Start it with the legacy memory map and exception base */
- write_gcr_co_reset_ext_base(CM_GCR_RESET_EXT_BASE_UEB);
+ write_gcr_co_reset_ext_base(CM_GCR_Cx_RESET_EXT_BASE_UEB);
/* Ensure the core can access the GCRs */
- access = read_gcr_access();
- access |= 1 << (CM_GCR_ACCESS_ACCESSEN_SHF + core);
- write_gcr_access(access);
+ set_gcr_access(1 << core);
if (mips_cpc_present()) {
/* Reset the core */
@@ -251,7 +256,8 @@ static void boot_core(unsigned int core, unsigned int vpe_id)
timeout = 100;
while (true) {
stat = read_cpc_co_stat_conf();
- seq_state = stat & CPC_Cx_STAT_CONF_SEQSTATE_MSK;
+ seq_state = stat & CPC_Cx_STAT_CONF_SEQSTATE;
+ seq_state >>= __ffs(CPC_Cx_STAT_CONF_SEQSTATE);
/* U6 == coherent execution, ie. the core is up */
if (seq_state == CPC_Cx_STAT_CONF_SEQSTATE_U6)
@@ -283,15 +289,15 @@ static void boot_core(unsigned int core, unsigned int vpe_id)
static void remote_vpe_boot(void *dummy)
{
- unsigned core = current_cpu_data.core;
+ unsigned core = cpu_core(&current_cpu_data);
struct core_boot_config *core_cfg = &mips_cps_core_bootcfg[core];
mips_cps_boot_vpes(core_cfg, cpu_vpe_id(&current_cpu_data));
}
-static void cps_boot_secondary(int cpu, struct task_struct *idle)
+static int cps_boot_secondary(int cpu, struct task_struct *idle)
{
- unsigned core = cpu_data[cpu].core;
+ unsigned core = cpu_core(&cpu_data[cpu]);
unsigned vpe_id = cpu_vpe_id(&cpu_data[cpu]);
struct core_boot_config *core_cfg = &mips_cps_core_bootcfg[core];
struct vpe_boot_config *vpe_cfg = &core_cfg->vpe_config[vpe_id];
@@ -299,6 +305,10 @@ static void cps_boot_secondary(int cpu, struct task_struct *idle)
unsigned int remote;
int err;
+ /* We don't yet support booting CPUs in other clusters */
+ if (cpu_cluster(&cpu_data[cpu]) != cpu_cluster(&current_cpu_data))
+ return -ENOSYS;
+
vpe_cfg->pc = (unsigned long)&smp_bootstrap;
vpe_cfg->sp = __KSTK_TOS(idle);
vpe_cfg->gp = (unsigned long)task_thread_info(idle);
@@ -314,16 +324,16 @@ static void cps_boot_secondary(int cpu, struct task_struct *idle)
}
if (cpu_has_vp) {
- mips_cm_lock_other(core, vpe_id);
+ mips_cm_lock_other(0, core, vpe_id, CM_GCR_Cx_OTHER_BLOCK_LOCAL);
core_entry = CKSEG1ADDR((unsigned long)mips_cps_core_entry);
write_gcr_co_reset_base(core_entry);
mips_cm_unlock_other();
}
- if (core != current_cpu_data.core) {
+ if (!cpus_are_siblings(cpu, smp_processor_id())) {
/* Boot a VPE on another powered up core */
for (remote = 0; remote < NR_CPUS; remote++) {
- if (cpu_data[remote].core != core)
+ if (!cpus_are_siblings(cpu, remote))
continue;
if (cpu_online(remote))
break;
@@ -347,6 +357,7 @@ static void cps_boot_secondary(int cpu, struct task_struct *idle)
mips_cps_boot_vpes(core_cfg, vpe_id);
out:
preempt_enable();
+ return 0;
}
static void cps_init_secondary(void)
@@ -356,7 +367,7 @@ static void cps_init_secondary(void)
dmt();
if (mips_cm_revision() >= CM_REV_CM3) {
- unsigned ident = gic_read_local_vp_id();
+ unsigned int ident = read_gic_vl_ident();
/*
* Ensure that our calculation of the VP ID matches up with
@@ -400,7 +411,7 @@ static int cps_cpu_disable(void)
if (!cps_pm_support_state(CPS_PM_POWER_GATED))
return -EINVAL;
- core_cfg = &mips_cps_core_bootcfg[current_cpu_data.core];
+ core_cfg = &mips_cps_core_bootcfg[cpu_core(&current_cpu_data)];
atomic_sub(1 << cpu_vpe_id(&current_cpu_data), &core_cfg->vpe_mask);
smp_mb__after_atomic();
set_cpu_online(cpu, false);
@@ -422,15 +433,17 @@ void play_dead(void)
local_irq_disable();
idle_task_exit();
cpu = smp_processor_id();
- core = cpu_data[cpu].core;
+ core = cpu_core(&cpu_data[cpu]);
cpu_death = CPU_DEATH_POWER;
pr_debug("CPU%d going offline\n", cpu);
if (cpu_has_mipsmt || cpu_has_vp) {
+ core = cpu_core(&cpu_data[cpu]);
+
/* Look for another online VPE within the core */
for_each_online_cpu(cpu_death_sibling) {
- if (cpu_data[cpu_death_sibling].core != core)
+ if (!cpus_are_siblings(cpu, cpu_death_sibling))
continue;
/*
@@ -486,8 +499,9 @@ static void wait_for_sibling_halt(void *ptr_cpu)
static void cps_cpu_die(unsigned int cpu)
{
- unsigned core = cpu_data[cpu].core;
+ unsigned core = cpu_core(&cpu_data[cpu]);
unsigned int vpe_id = cpu_vpe_id(&cpu_data[cpu]);
+ ktime_t fail_time;
unsigned stat;
int err;
@@ -514,16 +528,37 @@ static void cps_cpu_die(unsigned int cpu)
* state, the latter happening when a JTAG probe is connected
* in which case the CPC will refuse to power down the core.
*/
+ fail_time = ktime_add_ms(ktime_get(), 2000);
do {
- mips_cm_lock_other(core, 0);
+ mips_cm_lock_other(0, core, 0, CM_GCR_Cx_OTHER_BLOCK_LOCAL);
mips_cpc_lock_other(core);
stat = read_cpc_co_stat_conf();
- stat &= CPC_Cx_STAT_CONF_SEQSTATE_MSK;
+ stat &= CPC_Cx_STAT_CONF_SEQSTATE;
+ stat >>= __ffs(CPC_Cx_STAT_CONF_SEQSTATE);
mips_cpc_unlock_other();
mips_cm_unlock_other();
- } while (stat != CPC_Cx_STAT_CONF_SEQSTATE_D0 &&
- stat != CPC_Cx_STAT_CONF_SEQSTATE_D2 &&
- stat != CPC_Cx_STAT_CONF_SEQSTATE_U2);
+
+ if (stat == CPC_Cx_STAT_CONF_SEQSTATE_D0 ||
+ stat == CPC_Cx_STAT_CONF_SEQSTATE_D2 ||
+ stat == CPC_Cx_STAT_CONF_SEQSTATE_U2)
+ break;
+
+ /*
+ * The core ought to have powered down, but didn't &
+ * now we don't really know what state it's in. It's
+ * likely that its _pwr_up pin has been wired to logic
+ * 1 & it powered back up as soon as we powered it
+ * down...
+ *
+ * The best we can do is warn the user & continue in
+ * the hope that the core is doing nothing harmful &
+ * might behave properly if we online it later.
+ */
+ if (WARN(ktime_after(ktime_get(), fail_time),
+ "CPU%u hasn't powered down, seq. state %u\n",
+ cpu, stat))
+ break;
+ } while (1);
/* Indicate the core is powered off */
bitmap_clear(core_power, core, 1);
@@ -539,7 +574,7 @@ static void cps_cpu_die(unsigned int cpu)
panic("Failed to call remote sibling CPU\n");
} else if (cpu_has_vp) {
do {
- mips_cm_lock_other(core, vpe_id);
+ mips_cm_lock_other(0, core, vpe_id, CM_GCR_Cx_OTHER_BLOCK_LOCAL);
stat = read_cpc_co_vp_running();
mips_cm_unlock_other();
} while (stat & (1 << vpe_id));
@@ -548,7 +583,7 @@ static void cps_cpu_die(unsigned int cpu)
#endif /* CONFIG_HOTPLUG_CPU */
-static struct plat_smp_ops cps_smp_ops = {
+static const struct plat_smp_ops cps_smp_ops = {
.smp_setup = cps_smp_setup,
.prepare_cpus = cps_prepare_cpus,
.boot_secondary = cps_boot_secondary,
@@ -564,7 +599,7 @@ static struct plat_smp_ops cps_smp_ops = {
bool mips_cps_smp_in_use(void)
{
- extern struct plat_smp_ops *mp_ops;
+ extern const struct plat_smp_ops *mp_ops;
return mp_ops == &cps_smp_ops;
}
@@ -576,7 +611,7 @@ int register_cps_smp_ops(void)
}
/* check we have a GIC - we need one for IPIs */
- if (!(read_gcr_gic_status() & CM_GCR_GIC_STATUS_EX_MSK)) {
+ if (!(read_gcr_gic_status() & CM_GCR_GIC_STATUS_EX)) {
pr_warn("MIPS CPS SMP unable to proceed without a GIC\n");
return -ENODEV;
}
diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c
index ed6b4df583ea..94ab3276b48c 100644
--- a/arch/mips/kernel/smp-mt.c
+++ b/arch/mips/kernel/smp-mt.c
@@ -21,7 +21,6 @@
#include <linux/sched.h>
#include <linux/cpumask.h>
#include <linux/interrupt.h>
-#include <linux/irqchip/mips-gic.h>
#include <linux/compiler.h>
#include <linux/sched/task_stack.h>
#include <linux/smp.h>
@@ -36,6 +35,7 @@
#include <asm/mipsregs.h>
#include <asm/mipsmtregs.h>
#include <asm/mips_mt.h>
+#include <asm/mips-cps.h>
static void __init smvp_copy_vpe_config(void)
{
@@ -83,7 +83,7 @@ static unsigned int __init smvp_vpe_init(unsigned int tc, unsigned int mvpconf0,
if (tc != 0)
smvp_copy_vpe_config();
- cpu_data[ncpu].vpe_id = tc;
+ cpu_set_vpe_id(&cpu_data[ncpu], tc);
return ncpu;
}
@@ -118,14 +118,12 @@ static void __init smvp_tc_init(unsigned int tc, unsigned int mvpconf0)
static void vsmp_init_secondary(void)
{
-#ifdef CONFIG_MIPS_GIC
/* This is Malta specific: IPI,performance and timer interrupts */
- if (gic_present)
+ if (mips_gic_present())
change_c0_status(ST0_IM, STATUSF_IP2 | STATUSF_IP3 |
STATUSF_IP4 | STATUSF_IP5 |
STATUSF_IP6 | STATUSF_IP7);
else
-#endif
change_c0_status(ST0_IM, STATUSF_IP0 | STATUSF_IP1 |
STATUSF_IP6 | STATUSF_IP7);
}
@@ -152,7 +150,7 @@ static void vsmp_smp_finish(void)
* (unsigned long)idle->thread_info the gp
* assumes a 1:1 mapping of TC => VPE
*/
-static void vsmp_boot_secondary(int cpu, struct task_struct *idle)
+static int vsmp_boot_secondary(int cpu, struct task_struct *idle)
{
struct thread_info *gp = task_thread_info(idle);
dvpe();
@@ -184,6 +182,8 @@ static void vsmp_boot_secondary(int cpu, struct task_struct *idle)
clear_c0_mvpcontrol(MVPCONTROL_VPC);
evpe(EVPE_ENABLE);
+
+ return 0;
}
/*
@@ -239,7 +239,7 @@ static void __init vsmp_prepare_cpus(unsigned int max_cpus)
mips_mt_set_cpuoptions();
}
-struct plat_smp_ops vsmp_smp_ops = {
+const struct plat_smp_ops vsmp_smp_ops = {
.send_ipi_single = mips_smp_send_ipi_single,
.send_ipi_mask = mips_smp_send_ipi_mask,
.init_secondary = vsmp_init_secondary,
diff --git a/arch/mips/kernel/smp-up.c b/arch/mips/kernel/smp-up.c
index 17878d71ef2b..525d3196f793 100644
--- a/arch/mips/kernel/smp-up.c
+++ b/arch/mips/kernel/smp-up.c
@@ -39,8 +39,9 @@ static void up_smp_finish(void)
/*
* Firmware CPU startup hook
*/
-static void up_boot_secondary(int cpu, struct task_struct *idle)
+static int up_boot_secondary(int cpu, struct task_struct *idle)
{
+ return 0;
}
static void __init up_smp_setup(void)
@@ -63,7 +64,7 @@ static void up_cpu_die(unsigned int cpu)
}
#endif
-struct plat_smp_ops up_smp_ops = {
+const struct plat_smp_ops up_smp_ops = {
.send_ipi_single = up_send_ipi_single,
.send_ipi_mask = up_send_ipi_mask,
.init_secondary = up_init_secondary,
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index aba1afb64b62..bbe19b64def5 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -96,8 +96,7 @@ static inline void set_cpu_sibling_map(int cpu)
if (smp_num_siblings > 1) {
for_each_cpu(i, &cpu_sibling_setup_map) {
- if (cpu_data[cpu].package == cpu_data[i].package &&
- cpu_data[cpu].core == cpu_data[i].core) {
+ if (cpus_are_siblings(cpu, i)) {
cpumask_set_cpu(i, &cpu_sibling_map[cpu]);
cpumask_set_cpu(cpu, &cpu_sibling_map[i]);
}
@@ -134,8 +133,7 @@ void calculate_cpu_foreign_map(void)
for_each_online_cpu(i) {
core_present = 0;
for_each_cpu(k, &temp_foreign_map)
- if (cpu_data[i].package == cpu_data[k].package &&
- cpu_data[i].core == cpu_data[k].core)
+ if (cpus_are_siblings(i, k))
core_present = 1;
if (!core_present)
cpumask_set_cpu(i, &temp_foreign_map);
@@ -146,10 +144,10 @@ void calculate_cpu_foreign_map(void)
&temp_foreign_map, &cpu_sibling_map[i]);
}
-struct plat_smp_ops *mp_ops;
+const struct plat_smp_ops *mp_ops;
EXPORT_SYMBOL(mp_ops);
-void register_smp_ops(struct plat_smp_ops *ops)
+void register_smp_ops(const struct plat_smp_ops *ops)
{
if (mp_ops)
printk(KERN_WARNING "Overriding previously set SMP ops\n");
@@ -186,13 +184,13 @@ void mips_smp_send_ipi_mask(const struct cpumask *mask, unsigned int action)
if (mips_cpc_present()) {
for_each_cpu(cpu, mask) {
- core = cpu_data[cpu].core;
-
- if (core == current_cpu_data.core)
+ if (cpus_are_siblings(cpu, smp_processor_id()))
continue;
+ core = cpu_core(&cpu_data[cpu]);
+
while (!cpumask_test_cpu(cpu, &cpu_coherent_mask)) {
- mips_cm_lock_other(core, 0);
+ mips_cm_lock_other_cpu(cpu, CM_GCR_Cx_OTHER_BLOCK_LOCAL);
mips_cpc_lock_other(core);
write_cpc_co_cmd(CPC_Cx_CMD_PWRUP);
mips_cpc_unlock_other();
@@ -335,6 +333,9 @@ int mips_smp_ipi_free(const struct cpumask *mask)
static int __init mips_smp_ipi_init(void)
{
+ if (num_possible_cpus() == 1)
+ return 0;
+
mips_smp_ipi_allocate(cpu_possible_mask);
call_desc = irq_to_desc(call_virq);
@@ -373,9 +374,6 @@ asmlinkage void start_secondary(void)
cpumask_set_cpu(cpu, &cpu_coherent_mask);
notify_cpu_starting(cpu);
- complete(&cpu_running);
- synchronise_count_slave(cpu);
-
set_cpu_online(cpu, true);
set_cpu_sibling_map(cpu);
@@ -383,6 +381,9 @@ asmlinkage void start_secondary(void)
calculate_cpu_foreign_map();
+ complete(&cpu_running);
+ synchronise_count_slave(cpu);
+
/*
* irq will be enabled in ->smp_finish(), enabling it too early
* is dangerous.
@@ -438,7 +439,11 @@ void smp_prepare_boot_cpu(void)
int __cpu_up(unsigned int cpu, struct task_struct *tidle)
{
- mp_ops->boot_secondary(cpu, tidle);
+ int err;
+
+ err = mp_ops->boot_secondary(cpu, tidle);
+ if (err)
+ return err;
/*
* We must check for timeout here, as the CPU will not be marked
@@ -645,12 +650,12 @@ EXPORT_SYMBOL(flush_tlb_one);
#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
static DEFINE_PER_CPU(atomic_t, tick_broadcast_count);
-static DEFINE_PER_CPU(struct call_single_data, tick_broadcast_csd);
+static DEFINE_PER_CPU(call_single_data_t, tick_broadcast_csd);
void tick_broadcast(const struct cpumask *mask)
{
atomic_t *count;
- struct call_single_data *csd;
+ call_single_data_t *csd;
int cpu;
for_each_cpu(cpu, mask) {
@@ -671,7 +676,7 @@ static void tick_broadcast_callee(void *info)
static int __init tick_broadcast_init(void)
{
- struct call_single_data *csd;
+ call_single_data_t *csd;
int cpu;
for (cpu = 0; cpu < NR_CPUS; cpu++) {
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 1dfa7f5796c7..58c6f634b550 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -29,6 +29,7 @@
#include <linux/sched/task_stack.h>
#include <asm/asm.h>
+#include <asm/asm-eva.h>
#include <asm/branch.h>
#include <asm/cachectl.h>
#include <asm/cacheflush.h>
@@ -131,16 +132,14 @@ static inline int mips_atomic_set(unsigned long addr, unsigned long new)
__asm__ __volatile__ (
" .set "MIPS_ISA_ARCH_LEVEL" \n"
" li %[err], 0 \n"
- "1: ll %[old], (%[addr]) \n"
+ "1: \n"
+ user_ll("%[old]", "(%[addr])")
" move %[tmp], %[new] \n"
- "2: sc %[tmp], (%[addr]) \n"
- " bnez %[tmp], 4f \n"
+ "2: \n"
+ user_sc("%[tmp]", "(%[addr])")
+ " beqz %[tmp], 1b \n"
"3: \n"
" .insn \n"
- " .subsection 2 \n"
- "4: b 1b \n"
- " .previous \n"
- " \n"
" .section .fixup,\"ax\" \n"
"5: li %[err], %[efault] \n"
" j 3b \n"
@@ -192,6 +191,12 @@ static inline int mips_atomic_set(unsigned long addr, unsigned long new)
unreachable();
}
+/*
+ * mips_atomic_set() normally returns directly via syscall_exit potentially
+ * clobbering static registers, so be sure to preserve them.
+ */
+save_static_function(sys_sysmips);
+
SYSCALL_DEFINE3(sysmips, long, cmd, long, arg1, long, arg2)
{
switch (cmd) {
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index c036157fb891..a6ebc8135112 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -72,20 +72,6 @@ EXPORT_SYMBOL(perf_irq);
unsigned int mips_hpt_frequency;
EXPORT_SYMBOL_GPL(mips_hpt_frequency);
-/*
- * This function exists in order to cause an error due to a duplicate
- * definition if platform code should have its own implementation. The hook
- * to use instead is plat_time_init. plat_time_init does not receive the
- * irqaction pointer argument anymore. This is because any function which
- * initializes an interrupt timer now takes care of its own request_irq rsp.
- * setup_irq calls and each clock_event_device should use its own
- * struct irqrequest.
- */
-void __init plat_timer_setup(void)
-{
- BUG();
-}
-
static __init int cpu_has_mfc0_count_bug(void)
{
switch (current_cpu_type()) {
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 38dfa27730ff..5669d3b8bd38 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -50,9 +50,8 @@
#include <asm/fpu.h>
#include <asm/fpu_emulator.h>
#include <asm/idle.h>
-#include <asm/mips-cm.h>
+#include <asm/mips-cps.h>
#include <asm/mips-r2-to-r6-emul.h>
-#include <asm/mips-cm.h>
#include <asm/mipsregs.h>
#include <asm/mipsmtregs.h>
#include <asm/module.h>
@@ -429,7 +428,8 @@ static const struct exception_table_entry *search_dbe_tables(unsigned long addr)
{
const struct exception_table_entry *e;
- e = search_extable(__start___dbe_table, __stop___dbe_table - 1, addr);
+ e = search_extable(__start___dbe_table,
+ __stop___dbe_table - __start___dbe_table, addr);
if (!e)
e = search_module_dbetables(addr);
return e;
@@ -733,8 +733,7 @@ void force_fcr31_sig(unsigned long fcr31, void __user *fault_addr,
si.si_code = FPE_FLTUND;
else if (fcr31 & FPU_CSR_INE_X)
si.si_code = FPE_FLTRES;
- else
- si.si_code = __SI_FAULT;
+
force_sig_info(SIGFPE, &si, tsk);
}
@@ -1672,7 +1671,7 @@ static inline void parity_protection_init(void)
/* Probe L2 ECC support */
gcr_ectl = read_gcr_err_control();
- if (!(gcr_ectl & CM_GCR_ERR_CONTROL_L2_ECC_SUPPORT_MSK) ||
+ if (!(gcr_ectl & CM_GCR_ERR_CONTROL_L2_ECC_SUPPORT) ||
!(cp0_ectl & ERRCTL_PE)) {
/*
* One of L1 or L2 ECC checking isn't supported,
@@ -1692,12 +1691,12 @@ static inline void parity_protection_init(void)
/* Configure L2 ECC checking */
if (l2parity)
- gcr_ectl |= CM_GCR_ERR_CONTROL_L2_ECC_EN_MSK;
+ gcr_ectl |= CM_GCR_ERR_CONTROL_L2_ECC_EN;
else
- gcr_ectl &= ~CM_GCR_ERR_CONTROL_L2_ECC_EN_MSK;
+ gcr_ectl &= ~CM_GCR_ERR_CONTROL_L2_ECC_EN;
write_gcr_err_control(gcr_ectl);
gcr_ectl = read_gcr_err_control();
- gcr_ectl &= CM_GCR_ERR_CONTROL_L2_ECC_EN_MSK;
+ gcr_ectl &= CM_GCR_ERR_CONTROL_L2_ECC_EN;
WARN_ON(!!gcr_ectl != l2parity);
pr_info("Cache parity protection %sabled\n",
@@ -2427,21 +2426,6 @@ void __init trap_init(void)
set_except_vector(EXCCODE_TR, handle_tr);
set_except_vector(EXCCODE_MSAFPE, handle_msa_fpe);
- if (current_cpu_type() == CPU_R6000 ||
- current_cpu_type() == CPU_R6000A) {
- /*
- * The R6000 is the only R-series CPU that features a machine
- * check exception (similar to the R4000 cache error) and
- * unaligned ldc1/sdc1 exception. The handlers have not been
- * written yet. Well, anyway there is no R6000 machine on the
- * current list of targets for Linux/MIPS.
- * (Duh, crap, there is someone with a triple R6k machine)
- */
- //set_except_vector(14, handle_mc);
- //set_except_vector(15, handle_ndc);
- }
-
-
if (board_nmi_handler_setup)
board_nmi_handler_setup();
diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c
index f806ee56e639..2d0b912f9e3e 100644
--- a/arch/mips/kernel/unaligned.c
+++ b/arch/mips/kernel/unaligned.c
@@ -939,88 +939,114 @@ static void emulate_load_store_insn(struct pt_regs *regs,
* The remaining opcodes are the ones that are really of
* interest.
*/
-#ifdef CONFIG_EVA
case spec3_op:
- /*
- * we can land here only from kernel accessing user memory,
- * so we need to "switch" the address limit to user space, so
- * address check can work properly.
- */
- seg = get_fs();
- set_fs(USER_DS);
- switch (insn.spec3_format.func) {
- case lhe_op:
- if (!access_ok(VERIFY_READ, addr, 2)) {
- set_fs(seg);
- goto sigbus;
- }
- LoadHWE(addr, value, res);
- if (res) {
- set_fs(seg);
- goto fault;
- }
- compute_return_epc(regs);
- regs->regs[insn.spec3_format.rt] = value;
- break;
- case lwe_op:
- if (!access_ok(VERIFY_READ, addr, 4)) {
- set_fs(seg);
- goto sigbus;
+ if (insn.dsp_format.func == lx_op) {
+ switch (insn.dsp_format.op) {
+ case lwx_op:
+ if (!access_ok(VERIFY_READ, addr, 4))
+ goto sigbus;
+ LoadW(addr, value, res);
+ if (res)
+ goto fault;
+ compute_return_epc(regs);
+ regs->regs[insn.dsp_format.rd] = value;
+ break;
+ case lhx_op:
+ if (!access_ok(VERIFY_READ, addr, 2))
+ goto sigbus;
+ LoadHW(addr, value, res);
+ if (res)
+ goto fault;
+ compute_return_epc(regs);
+ regs->regs[insn.dsp_format.rd] = value;
+ break;
+ default:
+ goto sigill;
}
+ }
+#ifdef CONFIG_EVA
+ else {
+ /*
+ * we can land here only from kernel accessing user
+ * memory, so we need to "switch" the address limit to
+ * user space, so that address check can work properly.
+ */
+ seg = get_fs();
+ set_fs(USER_DS);
+ switch (insn.spec3_format.func) {
+ case lhe_op:
+ if (!access_ok(VERIFY_READ, addr, 2)) {
+ set_fs(seg);
+ goto sigbus;
+ }
+ LoadHWE(addr, value, res);
+ if (res) {
+ set_fs(seg);
+ goto fault;
+ }
+ compute_return_epc(regs);
+ regs->regs[insn.spec3_format.rt] = value;
+ break;
+ case lwe_op:
+ if (!access_ok(VERIFY_READ, addr, 4)) {
+ set_fs(seg);
+ goto sigbus;
+ }
LoadWE(addr, value, res);
- if (res) {
- set_fs(seg);
- goto fault;
- }
- compute_return_epc(regs);
- regs->regs[insn.spec3_format.rt] = value;
- break;
- case lhue_op:
- if (!access_ok(VERIFY_READ, addr, 2)) {
- set_fs(seg);
- goto sigbus;
- }
- LoadHWUE(addr, value, res);
- if (res) {
- set_fs(seg);
- goto fault;
- }
- compute_return_epc(regs);
- regs->regs[insn.spec3_format.rt] = value;
- break;
- case she_op:
- if (!access_ok(VERIFY_WRITE, addr, 2)) {
- set_fs(seg);
- goto sigbus;
- }
- compute_return_epc(regs);
- value = regs->regs[insn.spec3_format.rt];
- StoreHWE(addr, value, res);
- if (res) {
- set_fs(seg);
- goto fault;
- }
- break;
- case swe_op:
- if (!access_ok(VERIFY_WRITE, addr, 4)) {
- set_fs(seg);
- goto sigbus;
- }
- compute_return_epc(regs);
- value = regs->regs[insn.spec3_format.rt];
- StoreWE(addr, value, res);
- if (res) {
+ if (res) {
+ set_fs(seg);
+ goto fault;
+ }
+ compute_return_epc(regs);
+ regs->regs[insn.spec3_format.rt] = value;
+ break;
+ case lhue_op:
+ if (!access_ok(VERIFY_READ, addr, 2)) {
+ set_fs(seg);
+ goto sigbus;
+ }
+ LoadHWUE(addr, value, res);
+ if (res) {
+ set_fs(seg);
+ goto fault;
+ }
+ compute_return_epc(regs);
+ regs->regs[insn.spec3_format.rt] = value;
+ break;
+ case she_op:
+ if (!access_ok(VERIFY_WRITE, addr, 2)) {
+ set_fs(seg);
+ goto sigbus;
+ }
+ compute_return_epc(regs);
+ value = regs->regs[insn.spec3_format.rt];
+ StoreHWE(addr, value, res);
+ if (res) {
+ set_fs(seg);
+ goto fault;
+ }
+ break;
+ case swe_op:
+ if (!access_ok(VERIFY_WRITE, addr, 4)) {
+ set_fs(seg);
+ goto sigbus;
+ }
+ compute_return_epc(regs);
+ value = regs->regs[insn.spec3_format.rt];
+ StoreWE(addr, value, res);
+ if (res) {
+ set_fs(seg);
+ goto fault;
+ }
+ break;
+ default:
set_fs(seg);
- goto fault;
+ goto sigill;
}
- break;
- default:
set_fs(seg);
- goto sigill;
}
- set_fs(seg);
- break;
#endif
+ break;
case lh_op:
if (!access_ok(VERIFY_READ, addr, 2))
goto sigbus;
@@ -1352,7 +1378,7 @@ sigill:
const int reg16to32[] = { 16, 17, 2, 3, 4, 5, 6, 7 };
/* Recode table from 16-bit STORE register notation to 32-bit GPR. */
-const int reg16to32st[] = { 0, 17, 2, 3, 4, 5, 6, 7 };
+static const int reg16to32st[] = { 0, 17, 2, 3, 4, 5, 6, 7 };
static void emulate_load_store_microMIPS(struct pt_regs *regs,
void __user *addr)
@@ -1984,6 +2010,8 @@ static void emulate_load_store_MIPS16e(struct pt_regs *regs, void __user * addr)
u16 __user *pc16;
unsigned long origpc;
union mips16e_instruction mips16inst, oldinst;
+ unsigned int opcode;
+ int extended = 0;
origpc = regs->cp0_epc;
orig31 = regs->regs[31];
@@ -1996,6 +2024,7 @@ static void emulate_load_store_MIPS16e(struct pt_regs *regs, void __user * addr)
/* skip EXTEND instruction */
if (mips16inst.ri.opcode == MIPS16e_extend_op) {
+ extended = 1;
pc16++;
__get_user(mips16inst.full, pc16);
} else if (delay_slot(regs)) {
@@ -2008,7 +2037,8 @@ static void emulate_load_store_MIPS16e(struct pt_regs *regs, void __user * addr)
goto sigbus;
}
- switch (mips16inst.ri.opcode) {
+ opcode = mips16inst.ri.opcode;
+ switch (opcode) {
case MIPS16e_i64_op: /* I64 or RI64 instruction */
switch (mips16inst.i64.func) { /* I64/RI64 func field check */
case MIPS16e_ldpc_func:
@@ -2028,9 +2058,40 @@ static void emulate_load_store_MIPS16e(struct pt_regs *regs, void __user * addr)
goto sigbus;
case MIPS16e_swsp_op:
+ reg = reg16to32[mips16inst.ri.rx];
+ if (extended && cpu_has_mips16e2)
+ switch (mips16inst.ri.imm >> 5) {
+ case 0: /* SWSP */
+ case 1: /* SWGP */
+ break;
+ case 2: /* SHGP */
+ opcode = MIPS16e_sh_op;
+ break;
+ default:
+ goto sigbus;
+ }
+ break;
+
case MIPS16e_lwpc_op:
+ reg = reg16to32[mips16inst.ri.rx];
+ break;
+
case MIPS16e_lwsp_op:
reg = reg16to32[mips16inst.ri.rx];
+ if (extended && cpu_has_mips16e2)
+ switch (mips16inst.ri.imm >> 5) {
+ case 0: /* LWSP */
+ case 1: /* LWGP */
+ break;
+ case 2: /* LHGP */
+ opcode = MIPS16e_lh_op;
+ break;
+ case 4: /* LHUGP */
+ opcode = MIPS16e_lhu_op;
+ break;
+ default:
+ goto sigbus;
+ }
break;
case MIPS16e_i8_op:
@@ -2044,7 +2105,7 @@ static void emulate_load_store_MIPS16e(struct pt_regs *regs, void __user * addr)
break;
}
- switch (mips16inst.ri.opcode) {
+ switch (opcode) {
case MIPS16e_lb_op:
case MIPS16e_lbu_op:
diff --git a/arch/mips/kernel/vdso.c b/arch/mips/kernel/vdso.c
index 093517e85a6c..019035d7225c 100644
--- a/arch/mips/kernel/vdso.c
+++ b/arch/mips/kernel/vdso.c
@@ -13,13 +13,13 @@
#include <linux/err.h>
#include <linux/init.h>
#include <linux/ioport.h>
-#include <linux/irqchip/mips-gic.h>
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/timekeeper_internal.h>
#include <asm/abi.h>
+#include <asm/mips-cps.h>
#include <asm/vdso.h>
/* Kernel-provided data used by the VDSO. */
@@ -99,9 +99,8 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
{
struct mips_vdso_image *image = current->thread.abi->vdso;
struct mm_struct *mm = current->mm;
- unsigned long gic_size, vvar_size, size, base, data_addr, vdso_addr;
+ unsigned long gic_size, vvar_size, size, base, data_addr, vdso_addr, gic_pfn;
struct vm_area_struct *vma;
- struct resource gic_res;
int ret;
if (down_write_killable(&mm->mmap_sem))
@@ -125,7 +124,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
* only map a page even though the total area is 64K, as we only need
* the counter registers at the start.
*/
- gic_size = gic_present ? PAGE_SIZE : 0;
+ gic_size = mips_gic_present() ? PAGE_SIZE : 0;
vvar_size = gic_size + PAGE_SIZE;
size = vvar_size + image->size;
@@ -148,13 +147,9 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
/* Map GIC user page. */
if (gic_size) {
- ret = gic_get_usm_range(&gic_res);
- if (ret)
- goto out;
+ gic_pfn = virt_to_phys(mips_gic_base + MIPS_GIC_USER_OFS) >> PAGE_SHIFT;
- ret = io_remap_pfn_range(vma, base,
- gic_res.start >> PAGE_SHIFT,
- gic_size,
+ ret = io_remap_pfn_range(vma, base, gic_pfn, gic_size,
pgprot_noncached(PAGE_READONLY));
if (ret)
goto out;
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index d4b2ad18eef2..d535edc01434 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -98,6 +98,11 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
return !!(vcpu->arch.pending_exceptions);
}
+bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu)
+{
+ return false;
+}
+
int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
{
return 1;
@@ -509,7 +514,7 @@ int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu,
dvcpu->arch.wait = 0;
- if (swait_active(&dvcpu->wq))
+ if (swq_has_sleeper(&dvcpu->wq))
swake_up(&dvcpu->wq);
return 0;
@@ -1174,7 +1179,7 @@ static void kvm_mips_comparecount_func(unsigned long data)
kvm_mips_callbacks->queue_timer_int(vcpu);
vcpu->arch.wait = 0;
- if (swait_active(&vcpu->wq))
+ if (swq_has_sleeper(&vcpu->wq))
swake_up(&vcpu->wq);
}
diff --git a/arch/mips/kvm/trap_emul.c b/arch/mips/kvm/trap_emul.c
index a563759fd142..6a0d7040d882 100644
--- a/arch/mips/kvm/trap_emul.c
+++ b/arch/mips/kvm/trap_emul.c
@@ -1094,7 +1094,7 @@ static void kvm_trap_emul_check_requests(struct kvm_vcpu *vcpu, int cpu,
struct mm_struct *mm;
int i;
- if (likely(!vcpu->requests))
+ if (likely(!kvm_request_pending(vcpu)))
return;
if (kvm_check_request(KVM_REQ_TLB_FLUSH, vcpu)) {
diff --git a/arch/mips/kvm/vz.c b/arch/mips/kvm/vz.c
index 71d8856ade64..74805035edc8 100644
--- a/arch/mips/kvm/vz.c
+++ b/arch/mips/kvm/vz.c
@@ -2337,7 +2337,7 @@ static int kvm_vz_check_requests(struct kvm_vcpu *vcpu, int cpu)
int ret = 0;
int i;
- if (!vcpu->requests)
+ if (!kvm_request_pending(vcpu))
return 0;
if (kvm_check_request(KVM_REQ_TLB_FLUSH, vcpu)) {
diff --git a/arch/mips/lantiq/Kconfig b/arch/mips/lantiq/Kconfig
index 177769dbb0e8..35bc69b78268 100644
--- a/arch/mips/lantiq/Kconfig
+++ b/arch/mips/lantiq/Kconfig
@@ -17,6 +17,8 @@ config SOC_XWAY
bool "XWAY"
select SOC_TYPE_XWAY
select HW_HAS_PCI
+ select MFD_SYSCON
+ select MFD_CORE
config SOC_FALCON
bool "FALCON"
diff --git a/arch/mips/lantiq/clk.c b/arch/mips/lantiq/clk.c
index 149f0513c4f5..a263d1b751ff 100644
--- a/arch/mips/lantiq/clk.c
+++ b/arch/mips/lantiq/clk.c
@@ -160,11 +160,6 @@ void clk_deactivate(struct clk *clk)
}
EXPORT_SYMBOL(clk_deactivate);
-struct clk *of_clk_get_from_provider(struct of_phandle_args *clkspec)
-{
- return NULL;
-}
-
static inline u32 get_counter_resolution(void)
{
u32 res;
diff --git a/arch/mips/lantiq/falcon/reset.c b/arch/mips/lantiq/falcon/reset.c
index 7a535d72f541..058b85578cf7 100644
--- a/arch/mips/lantiq/falcon/reset.c
+++ b/arch/mips/lantiq/falcon/reset.c
@@ -15,27 +15,14 @@
#include <lantiq_soc.h>
-/* CPU0 Reset Source Register */
-#define SYS1_CPU0RS 0x0040
-/* reset cause mask */
-#define CPU0RS_MASK 0x0003
-/* CPU0 Boot Mode Register */
-#define SYS1_BM 0x00a0
-/* boot mode mask */
-#define BM_MASK 0x0005
-
-/* allow platform code to find out what surce we booted from */
+/*
+ * Dummy implementation. Used to allow platform code to find out what
+ * source was booted from
+ */
unsigned char ltq_boot_select(void)
{
- return ltq_sys1_r32(SYS1_BM) & BM_MASK;
-}
-
-/* allow the watchdog driver to find out what the boot reason was */
-int ltq_reset_cause(void)
-{
- return ltq_sys1_r32(SYS1_CPU0RS) & CPU0RS_MASK;
+ return BS_SPI;
}
-EXPORT_SYMBOL_GPL(ltq_reset_cause);
#define BOOT_REG_BASE (KSEG1 | 0x1F200000)
#define BOOT_PW1_REG (BOOT_REG_BASE | 0x20)
diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
index 33728b7af426..f0bc3312ed11 100644
--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -61,10 +61,6 @@
/* we have a cascade of 8 irqs */
#define MIPS_CPU_IRQ_CASCADE 8
-#ifdef CONFIG_MIPS_MT_SMP
-int gic_present;
-#endif
-
static int exin_avail;
static u32 ltq_eiu_irq[MAX_EIU];
static void __iomem *ltq_icu_membase[MAX_IM];
diff --git a/arch/mips/lantiq/prom.c b/arch/mips/lantiq/prom.c
index 96773bed8a8a..9ff7ccde9de0 100644
--- a/arch/mips/lantiq/prom.c
+++ b/arch/mips/lantiq/prom.c
@@ -117,7 +117,7 @@ void __init prom_init(void)
int __init plat_of_setup(void)
{
- return __dt_register_buses(soc_info.compatible, "simple-bus");
+ return of_platform_default_populate(NULL, NULL, NULL);
}
arch_initcall(plat_of_setup);
diff --git a/arch/mips/lantiq/xway/Makefile b/arch/mips/lantiq/xway/Makefile
index a2edc538f477..fbb0747c70b7 100644
--- a/arch/mips/lantiq/xway/Makefile
+++ b/arch/mips/lantiq/xway/Makefile
@@ -1,5 +1,3 @@
-obj-y := prom.o sysctrl.o clk.o reset.o dma.o gptu.o dcdc.o
+obj-y := prom.o sysctrl.o clk.o dma.o gptu.o dcdc.o
obj-y += vmmc.o
-
-obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
diff --git a/arch/mips/lantiq/xway/reset.c b/arch/mips/lantiq/xway/reset.c
deleted file mode 100644
index 83fd65d76e81..000000000000
--- a/arch/mips/lantiq/xway/reset.c
+++ /dev/null
@@ -1,387 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2010 John Crispin <john@phrozen.org>
- * Copyright (C) 2013-2015 Lantiq Beteiligungs-GmbH & Co.KG
- */
-
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/ioport.h>
-#include <linux/pm.h>
-#include <linux/export.h>
-#include <linux/delay.h>
-#include <linux/of_address.h>
-#include <linux/of_platform.h>
-#include <linux/reset-controller.h>
-
-#include <asm/reboot.h>
-
-#include <lantiq_soc.h>
-
-#include "../prom.h"
-
-/* reset request register */
-#define RCU_RST_REQ 0x0010
-/* reset status register */
-#define RCU_RST_STAT 0x0014
-/* vr9 gphy registers */
-#define RCU_GFS_ADD0_XRX200 0x0020
-#define RCU_GFS_ADD1_XRX200 0x0068
-/* xRX300 gphy registers */
-#define RCU_GFS_ADD0_XRX300 0x0020
-#define RCU_GFS_ADD1_XRX300 0x0058
-#define RCU_GFS_ADD2_XRX300 0x00AC
-/* xRX330 gphy registers */
-#define RCU_GFS_ADD0_XRX330 0x0020
-#define RCU_GFS_ADD1_XRX330 0x0058
-#define RCU_GFS_ADD2_XRX330 0x00AC
-#define RCU_GFS_ADD3_XRX330 0x0264
-
-/* xbar BE flag */
-#define RCU_AHB_ENDIAN 0x004C
-#define RCU_VR9_BE_AHB1S 0x00000008
-
-/* reboot bit */
-#define RCU_RD_GPHY0_XRX200 BIT(31)
-#define RCU_RD_SRST BIT(30)
-#define RCU_RD_GPHY1_XRX200 BIT(29)
-/* xRX300 bits */
-#define RCU_RD_GPHY0_XRX300 BIT(31)
-#define RCU_RD_GPHY1_XRX300 BIT(29)
-#define RCU_RD_GPHY2_XRX300 BIT(28)
-/* xRX330 bits */
-#define RCU_RD_GPHY0_XRX330 BIT(31)
-#define RCU_RD_GPHY1_XRX330 BIT(29)
-#define RCU_RD_GPHY2_XRX330 BIT(28)
-#define RCU_RD_GPHY3_XRX330 BIT(10)
-
-/* reset cause */
-#define RCU_STAT_SHIFT 26
-/* boot selection */
-#define RCU_BOOT_SEL(x) ((x >> 18) & 0x7)
-#define RCU_BOOT_SEL_XRX200(x) (((x >> 17) & 0xf) | ((x >> 8) & 0x10))
-
-/* dwc2 USB configuration registers */
-#define RCU_USB1CFG 0x0018
-#define RCU_USB2CFG 0x0034
-
-/* USB DMA endianness bits */
-#define RCU_USBCFG_HDSEL_BIT BIT(11)
-#define RCU_USBCFG_HOST_END_BIT BIT(10)
-#define RCU_USBCFG_SLV_END_BIT BIT(9)
-
-/* USB reset bits */
-#define RCU_USBRESET 0x0010
-
-#define USBRESET_BIT BIT(4)
-
-#define RCU_USBRESET2 0x0048
-
-#define USB1RESET_BIT BIT(4)
-#define USB2RESET_BIT BIT(5)
-
-#define RCU_CFG1A 0x0038
-#define RCU_CFG1B 0x003C
-
-/* USB PMU devices */
-#define PMU_AHBM BIT(15)
-#define PMU_USB0 BIT(6)
-#define PMU_USB1 BIT(27)
-
-/* USB PHY PMU devices */
-#define PMU_USB0_P BIT(0)
-#define PMU_USB1_P BIT(26)
-
-/* remapped base addr of the reset control unit */
-static void __iomem *ltq_rcu_membase;
-static struct device_node *ltq_rcu_np;
-static DEFINE_SPINLOCK(ltq_rcu_lock);
-
-static void ltq_rcu_w32(uint32_t val, uint32_t reg_off)
-{
- ltq_w32(val, ltq_rcu_membase + reg_off);
-}
-
-static uint32_t ltq_rcu_r32(uint32_t reg_off)
-{
- return ltq_r32(ltq_rcu_membase + reg_off);
-}
-
-static void ltq_rcu_w32_mask(uint32_t clr, uint32_t set, uint32_t reg_off)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&ltq_rcu_lock, flags);
- ltq_rcu_w32((ltq_rcu_r32(reg_off) & ~(clr)) | (set), reg_off);
- spin_unlock_irqrestore(&ltq_rcu_lock, flags);
-}
-
-/* This function is used by the watchdog driver */
-int ltq_reset_cause(void)
-{
- u32 val = ltq_rcu_r32(RCU_RST_STAT);
- return val >> RCU_STAT_SHIFT;
-}
-EXPORT_SYMBOL_GPL(ltq_reset_cause);
-
-/* allow platform code to find out what source we booted from */
-unsigned char ltq_boot_select(void)
-{
- u32 val = ltq_rcu_r32(RCU_RST_STAT);
-
- if (of_device_is_compatible(ltq_rcu_np, "lantiq,rcu-xrx200"))
- return RCU_BOOT_SEL_XRX200(val);
-
- return RCU_BOOT_SEL(val);
-}
-
-struct ltq_gphy_reset {
- u32 rd;
- u32 addr;
-};
-
-/* reset / boot a gphy */
-static struct ltq_gphy_reset xrx200_gphy[] = {
- {RCU_RD_GPHY0_XRX200, RCU_GFS_ADD0_XRX200},
- {RCU_RD_GPHY1_XRX200, RCU_GFS_ADD1_XRX200},
-};
-
-/* reset / boot a gphy */
-static struct ltq_gphy_reset xrx300_gphy[] = {
- {RCU_RD_GPHY0_XRX300, RCU_GFS_ADD0_XRX300},
- {RCU_RD_GPHY1_XRX300, RCU_GFS_ADD1_XRX300},
- {RCU_RD_GPHY2_XRX300, RCU_GFS_ADD2_XRX300},
-};
-
-/* reset / boot a gphy */
-static struct ltq_gphy_reset xrx330_gphy[] = {
- {RCU_RD_GPHY0_XRX330, RCU_GFS_ADD0_XRX330},
- {RCU_RD_GPHY1_XRX330, RCU_GFS_ADD1_XRX330},
- {RCU_RD_GPHY2_XRX330, RCU_GFS_ADD2_XRX330},
- {RCU_RD_GPHY3_XRX330, RCU_GFS_ADD3_XRX330},
-};
-
-static void xrx200_gphy_boot_addr(struct ltq_gphy_reset *phy_regs,
- dma_addr_t dev_addr)
-{
- ltq_rcu_w32_mask(0, phy_regs->rd, RCU_RST_REQ);
- ltq_rcu_w32(dev_addr, phy_regs->addr);
- ltq_rcu_w32_mask(phy_regs->rd, 0, RCU_RST_REQ);
-}
-
-/* reset and boot a gphy. these phys only exist on xrx200 SoC */
-int xrx200_gphy_boot(struct device *dev, unsigned int id, dma_addr_t dev_addr)
-{
- struct clk *clk;
-
- if (!of_device_is_compatible(ltq_rcu_np, "lantiq,rcu-xrx200")) {
- dev_err(dev, "this SoC has no GPHY\n");
- return -EINVAL;
- }
-
- if (of_machine_is_compatible("lantiq,vr9")) {
- clk = clk_get_sys("1f203000.rcu", "gphy");
- if (IS_ERR(clk))
- return PTR_ERR(clk);
- clk_enable(clk);
- }
-
- dev_info(dev, "booting GPHY%u firmware at %X\n", id, dev_addr);
-
- if (of_machine_is_compatible("lantiq,vr9")) {
- if (id >= ARRAY_SIZE(xrx200_gphy)) {
- dev_err(dev, "%u is an invalid gphy id\n", id);
- return -EINVAL;
- }
- xrx200_gphy_boot_addr(&xrx200_gphy[id], dev_addr);
- } else if (of_machine_is_compatible("lantiq,ar10")) {
- if (id >= ARRAY_SIZE(xrx300_gphy)) {
- dev_err(dev, "%u is an invalid gphy id\n", id);
- return -EINVAL;
- }
- xrx200_gphy_boot_addr(&xrx300_gphy[id], dev_addr);
- } else if (of_machine_is_compatible("lantiq,grx390")) {
- if (id >= ARRAY_SIZE(xrx330_gphy)) {
- dev_err(dev, "%u is an invalid gphy id\n", id);
- return -EINVAL;
- }
- xrx200_gphy_boot_addr(&xrx330_gphy[id], dev_addr);
- }
- return 0;
-}
-
-/* reset a io domain for u micro seconds */
-void ltq_reset_once(unsigned int module, ulong u)
-{
- ltq_rcu_w32(ltq_rcu_r32(RCU_RST_REQ) | module, RCU_RST_REQ);
- udelay(u);
- ltq_rcu_w32(ltq_rcu_r32(RCU_RST_REQ) & ~module, RCU_RST_REQ);
-}
-
-static int ltq_assert_device(struct reset_controller_dev *rcdev,
- unsigned long id)
-{
- u32 val;
-
- if (id < 8)
- return -1;
-
- val = ltq_rcu_r32(RCU_RST_REQ);
- val |= BIT(id);
- ltq_rcu_w32(val, RCU_RST_REQ);
-
- return 0;
-}
-
-static int ltq_deassert_device(struct reset_controller_dev *rcdev,
- unsigned long id)
-{
- u32 val;
-
- if (id < 8)
- return -1;
-
- val = ltq_rcu_r32(RCU_RST_REQ);
- val &= ~BIT(id);
- ltq_rcu_w32(val, RCU_RST_REQ);
-
- return 0;
-}
-
-static int ltq_reset_device(struct reset_controller_dev *rcdev,
- unsigned long id)
-{
- ltq_assert_device(rcdev, id);
- return ltq_deassert_device(rcdev, id);
-}
-
-static const struct reset_control_ops reset_ops = {
- .reset = ltq_reset_device,
- .assert = ltq_assert_device,
- .deassert = ltq_deassert_device,
-};
-
-static struct reset_controller_dev reset_dev = {
- .ops = &reset_ops,
- .owner = THIS_MODULE,
- .nr_resets = 32,
- .of_reset_n_cells = 1,
-};
-
-void ltq_rst_init(void)
-{
- reset_dev.of_node = of_find_compatible_node(NULL, NULL,
- "lantiq,xway-reset");
- if (!reset_dev.of_node)
- pr_err("Failed to find reset controller node");
- else
- reset_controller_register(&reset_dev);
-}
-
-static void ltq_machine_restart(char *command)
-{
- u32 val = ltq_rcu_r32(RCU_RST_REQ);
-
- if (of_device_is_compatible(ltq_rcu_np, "lantiq,rcu-xrx200"))
- val |= RCU_RD_GPHY1_XRX200 | RCU_RD_GPHY0_XRX200;
-
- val |= RCU_RD_SRST;
-
- local_irq_disable();
- ltq_rcu_w32(val, RCU_RST_REQ);
- unreachable();
-}
-
-static void ltq_machine_halt(void)
-{
- local_irq_disable();
- unreachable();
-}
-
-static void ltq_machine_power_off(void)
-{
- local_irq_disable();
- unreachable();
-}
-
-static void ltq_usb_init(void)
-{
- /* Power for USB cores 1 & 2 */
- ltq_pmu_enable(PMU_AHBM);
- ltq_pmu_enable(PMU_USB0);
- ltq_pmu_enable(PMU_USB1);
-
- ltq_rcu_w32(ltq_rcu_r32(RCU_CFG1A) | BIT(0), RCU_CFG1A);
- ltq_rcu_w32(ltq_rcu_r32(RCU_CFG1B) | BIT(0), RCU_CFG1B);
-
- /* Enable USB PHY power for cores 1 & 2 */
- ltq_pmu_enable(PMU_USB0_P);
- ltq_pmu_enable(PMU_USB1_P);
-
- /* Configure cores to host mode */
- ltq_rcu_w32(ltq_rcu_r32(RCU_USB1CFG) & ~RCU_USBCFG_HDSEL_BIT,
- RCU_USB1CFG);
- ltq_rcu_w32(ltq_rcu_r32(RCU_USB2CFG) & ~RCU_USBCFG_HDSEL_BIT,
- RCU_USB2CFG);
-
- /* Select DMA endianness (Host-endian: big-endian) */
- ltq_rcu_w32((ltq_rcu_r32(RCU_USB1CFG) & ~RCU_USBCFG_SLV_END_BIT)
- | RCU_USBCFG_HOST_END_BIT, RCU_USB1CFG);
- ltq_rcu_w32(ltq_rcu_r32((RCU_USB2CFG) & ~RCU_USBCFG_SLV_END_BIT)
- | RCU_USBCFG_HOST_END_BIT, RCU_USB2CFG);
-
- /* Hard reset USB state machines */
- ltq_rcu_w32(ltq_rcu_r32(RCU_USBRESET) | USBRESET_BIT, RCU_USBRESET);
- udelay(50 * 1000);
- ltq_rcu_w32(ltq_rcu_r32(RCU_USBRESET) & ~USBRESET_BIT, RCU_USBRESET);
-
- /* Soft reset USB state machines */
- ltq_rcu_w32(ltq_rcu_r32(RCU_USBRESET2)
- | USB1RESET_BIT | USB2RESET_BIT, RCU_USBRESET2);
- udelay(50 * 1000);
- ltq_rcu_w32(ltq_rcu_r32(RCU_USBRESET2)
- & ~(USB1RESET_BIT | USB2RESET_BIT), RCU_USBRESET2);
-}
-
-static int __init mips_reboot_setup(void)
-{
- struct resource res;
-
- ltq_rcu_np = of_find_compatible_node(NULL, NULL, "lantiq,rcu-xway");
- if (!ltq_rcu_np)
- ltq_rcu_np = of_find_compatible_node(NULL, NULL,
- "lantiq,rcu-xrx200");
-
- /* check if all the reset register range is available */
- if (!ltq_rcu_np)
- panic("Failed to load reset resources from devicetree");
-
- if (of_address_to_resource(ltq_rcu_np, 0, &res))
- panic("Failed to get rcu memory range");
-
- if (!request_mem_region(res.start, resource_size(&res), res.name))
- pr_err("Failed to request rcu memory");
-
- ltq_rcu_membase = ioremap_nocache(res.start, resource_size(&res));
- if (!ltq_rcu_membase)
- panic("Failed to remap core memory");
-
- if (of_machine_is_compatible("lantiq,ar9") ||
- of_machine_is_compatible("lantiq,vr9"))
- ltq_usb_init();
-
- if (of_machine_is_compatible("lantiq,vr9"))
- ltq_rcu_w32(ltq_rcu_r32(RCU_AHB_ENDIAN) | RCU_VR9_BE_AHB1S,
- RCU_AHB_ENDIAN);
-
- _machine_restart = ltq_machine_restart;
- _machine_halt = ltq_machine_halt;
- pm_power_off = ltq_machine_power_off;
-
- return 0;
-}
-
-arch_initcall(mips_reboot_setup);
diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c
index 95bec460b651..7611c3013793 100644
--- a/arch/mips/lantiq/xway/sysctrl.c
+++ b/arch/mips/lantiq/xway/sysctrl.c
@@ -145,15 +145,7 @@ static u32 pmu_clk_cr_b[] = {
#define pmu_w32(x, y) ltq_w32((x), pmu_membase + (y))
#define pmu_r32(x) ltq_r32(pmu_membase + (x))
-#define XBAR_ALWAYS_LAST 0x430
-#define XBAR_FPI_BURST_EN BIT(1)
-#define XBAR_AHB_BURST_EN BIT(2)
-
-#define xbar_w32(x, y) ltq_w32((x), ltq_xbar_membase + (y))
-#define xbar_r32(x) ltq_r32(ltq_xbar_membase + (x))
-
static void __iomem *pmu_membase;
-static void __iomem *ltq_xbar_membase;
void __iomem *ltq_cgu_membase;
void __iomem *ltq_ebu_membase;
@@ -293,16 +285,6 @@ static void pci_ext_disable(struct clk *clk)
ltq_cgu_w32((1 << 31) | (1 << 30), pcicr);
}
-static void xbar_fpi_burst_disable(void)
-{
- u32 reg;
-
- /* bit 1 as 1 --burst; bit 1 as 0 -- single */
- reg = xbar_r32(XBAR_ALWAYS_LAST);
- reg &= ~XBAR_FPI_BURST_EN;
- xbar_w32(reg, XBAR_ALWAYS_LAST);
-}
-
/* enable a clockout source */
static int clkout_enable(struct clk *clk)
{
@@ -459,26 +441,6 @@ void __init ltq_soc_init(void)
if (!pmu_membase || !ltq_cgu_membase || !ltq_ebu_membase)
panic("Failed to remap core resources");
- if (of_machine_is_compatible("lantiq,vr9")) {
- struct resource res_xbar;
- struct device_node *np_xbar =
- of_find_compatible_node(NULL, NULL,
- "lantiq,xbar-xway");
-
- if (!np_xbar)
- panic("Failed to load xbar nodes from devicetree");
- if (of_address_to_resource(np_xbar, 0, &res_xbar))
- panic("Failed to get xbar resources");
- if (!request_mem_region(res_xbar.start, resource_size(&res_xbar),
- res_xbar.name))
- panic("Failed to get xbar resources");
-
- ltq_xbar_membase = ioremap_nocache(res_xbar.start,
- resource_size(&res_xbar));
- if (!ltq_xbar_membase)
- panic("Failed to remap xbar resources");
- }
-
/* make sure to unprotect the memory region where flash is located */
ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_BUSCON0) & ~EBU_WRDIS, LTQ_EBU_BUSCON0);
@@ -507,8 +469,8 @@ void __init ltq_soc_init(void)
if (of_machine_is_compatible("lantiq,grx390") ||
of_machine_is_compatible("lantiq,ar10")) {
- clkdev_add_pmu("1e101000.usb", "phy", 1, 2, PMU_ANALOG_USB0_P);
- clkdev_add_pmu("1e106000.usb", "phy", 1, 2, PMU_ANALOG_USB1_P);
+ clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 2, PMU_ANALOG_USB0_P);
+ clkdev_add_pmu("1f203034.usb2-phy", "phy", 1, 2, PMU_ANALOG_USB1_P);
/* rc 0 */
clkdev_add_pmu("1d900000.pcie", "phy", 1, 2, PMU_ANALOG_PCIE0_P);
clkdev_add_pmu("1d900000.pcie", "msi", 1, 1, PMU1_PCIE_MSI);
@@ -528,8 +490,8 @@ void __init ltq_soc_init(void)
else
clkdev_add_static(CLOCK_133M, CLOCK_133M,
CLOCK_133M, CLOCK_133M);
- clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
- clkdev_add_pmu("1e101000.usb", "phy", 1, 0, PMU_USB0_P);
+ clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0);
+ clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 0, PMU_USB0_P);
clkdev_add_pmu("1e180000.etop", "ppe", 1, 0, PMU_PPE);
clkdev_add_cgu("1e180000.etop", "ephycgu", CGU_EPHY);
clkdev_add_pmu("1e180000.etop", "ephy", 1, 0, PMU_EPHY);
@@ -538,8 +500,8 @@ void __init ltq_soc_init(void)
} else if (of_machine_is_compatible("lantiq,grx390")) {
clkdev_add_static(ltq_grx390_cpu_hz(), ltq_grx390_fpi_hz(),
ltq_grx390_fpi_hz(), ltq_grx390_pp32_hz());
- clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
- clkdev_add_pmu("1e106000.usb", "ctl", 1, 0, PMU_USB1);
+ clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0);
+ clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1);
/* rc 2 */
clkdev_add_pmu("1a800000.pcie", "phy", 1, 2, PMU_ANALOG_PCIE2_P);
clkdev_add_pmu("1a800000.pcie", "msi", 1, 1, PMU1_PCIE2_MSI);
@@ -551,22 +513,23 @@ void __init ltq_soc_init(void)
} else if (of_machine_is_compatible("lantiq,ar10")) {
clkdev_add_static(ltq_ar10_cpu_hz(), ltq_ar10_fpi_hz(),
ltq_ar10_fpi_hz(), ltq_ar10_pp32_hz());
- clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
- clkdev_add_pmu("1e106000.usb", "ctl", 1, 0, PMU_USB1);
+ clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0);
+ clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1);
clkdev_add_pmu("1e108000.eth", NULL, 0, 0, PMU_SWITCH |
PMU_PPE_DP | PMU_PPE_TC);
clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
- clkdev_add_pmu("1f203000.rcu", "gphy", 1, 0, PMU_GPHY);
+ clkdev_add_pmu("1f203020.gphy", NULL, 1, 0, PMU_GPHY);
+ clkdev_add_pmu("1f203068.gphy", NULL, 1, 0, PMU_GPHY);
clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
clkdev_add_pmu("1e116000.mei", "afe", 1, 2, PMU_ANALOG_DSL_AFE);
clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
} else if (of_machine_is_compatible("lantiq,vr9")) {
clkdev_add_static(ltq_vr9_cpu_hz(), ltq_vr9_fpi_hz(),
ltq_vr9_fpi_hz(), ltq_vr9_pp32_hz());
- clkdev_add_pmu("1e101000.usb", "phy", 1, 0, PMU_USB0_P);
- clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0 | PMU_AHBM);
- clkdev_add_pmu("1e106000.usb", "phy", 1, 0, PMU_USB1_P);
- clkdev_add_pmu("1e106000.usb", "ctl", 1, 0, PMU_USB1 | PMU_AHBM);
+ clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 0, PMU_USB0_P);
+ clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0 | PMU_AHBM);
+ clkdev_add_pmu("1f203034.usb2-phy", "phy", 1, 0, PMU_USB1_P);
+ clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1 | PMU_AHBM);
clkdev_add_pmu("1d900000.pcie", "phy", 1, 1, PMU1_PCIE_PHY);
clkdev_add_pmu("1d900000.pcie", "bus", 1, 0, PMU_PCIE_CLK);
clkdev_add_pmu("1d900000.pcie", "msi", 1, 1, PMU1_PCIE_MSI);
@@ -579,17 +542,18 @@ void __init ltq_soc_init(void)
PMU_SWITCH | PMU_PPE_DPLUS | PMU_PPE_DPLUM |
PMU_PPE_EMA | PMU_PPE_TC | PMU_PPE_SLL01 |
PMU_PPE_QSB | PMU_PPE_TOP);
- clkdev_add_pmu("1f203000.rcu", "gphy", 0, 0, PMU_GPHY);
+ clkdev_add_pmu("1f203020.gphy", NULL, 0, 0, PMU_GPHY);
+ clkdev_add_pmu("1f203068.gphy", NULL, 0, 0, PMU_GPHY);
clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
} else if (of_machine_is_compatible("lantiq,ar9")) {
clkdev_add_static(ltq_ar9_cpu_hz(), ltq_ar9_fpi_hz(),
ltq_ar9_fpi_hz(), CLOCK_250M);
- clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
- clkdev_add_pmu("1e101000.usb", "phy", 1, 0, PMU_USB0_P);
- clkdev_add_pmu("1e106000.usb", "ctl", 1, 0, PMU_USB1);
- clkdev_add_pmu("1e106000.usb", "phy", 1, 0, PMU_USB1_P);
+ clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 0, PMU_USB0_P);
+ clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0);
+ clkdev_add_pmu("1f203034.usb2-phy", "phy", 1, 0, PMU_USB1_P);
+ clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1);
clkdev_add_pmu("1e180000.etop", "switch", 1, 0, PMU_SWITCH);
clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
@@ -598,14 +562,11 @@ void __init ltq_soc_init(void)
} else {
clkdev_add_static(ltq_danube_cpu_hz(), ltq_danube_fpi_hz(),
ltq_danube_fpi_hz(), ltq_danube_pp32_hz());
- clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
- clkdev_add_pmu("1e101000.usb", "phy", 1, 0, PMU_USB0_P);
+ clkdev_add_pmu("1f203018.usb2-phy", "ctrl", 1, 0, PMU_USB0);
+ clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 0, PMU_USB0_P);
clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
clkdev_add_pmu("1e100400.serial", NULL, 1, 0, PMU_ASC0);
}
-
- if (of_machine_is_compatible("lantiq,vr9"))
- xbar_fpi_burst_disable();
}
diff --git a/arch/mips/lantiq/xway/xrx200_phy_fw.c b/arch/mips/lantiq/xway/xrx200_phy_fw.c
deleted file mode 100644
index f0a0f2d431b2..000000000000
--- a/arch/mips/lantiq/xway/xrx200_phy_fw.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Lantiq XRX200 PHY Firmware Loader
- * Author: John Crispin
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * Copyright (C) 2012 John Crispin <john@phrozen.org>
- */
-
-#include <linux/delay.h>
-#include <linux/dma-mapping.h>
-#include <linux/firmware.h>
-#include <linux/of_platform.h>
-
-#include <lantiq_soc.h>
-
-#define XRX200_GPHY_FW_ALIGN (16 * 1024)
-
-static dma_addr_t xway_gphy_load(struct platform_device *pdev)
-{
- const struct firmware *fw;
- dma_addr_t dev_addr = 0;
- const char *fw_name;
- void *fw_addr;
- size_t size;
-
- if (of_get_property(pdev->dev.of_node, "firmware1", NULL) ||
- of_get_property(pdev->dev.of_node, "firmware2", NULL)) {
- switch (ltq_soc_type()) {
- case SOC_TYPE_VR9:
- if (of_property_read_string(pdev->dev.of_node,
- "firmware1", &fw_name)) {
- dev_err(&pdev->dev,
- "failed to load firmware filename\n");
- return 0;
- }
- break;
- case SOC_TYPE_VR9_2:
- if (of_property_read_string(pdev->dev.of_node,
- "firmware2", &fw_name)) {
- dev_err(&pdev->dev,
- "failed to load firmware filename\n");
- return 0;
- }
- break;
- }
- } else if (of_property_read_string(pdev->dev.of_node,
- "firmware", &fw_name)) {
- dev_err(&pdev->dev, "failed to load firmware filename\n");
- return 0;
- }
-
- dev_info(&pdev->dev, "requesting %s\n", fw_name);
- if (request_firmware(&fw, fw_name, &pdev->dev)) {
- dev_err(&pdev->dev, "failed to load firmware: %s\n", fw_name);
- return 0;
- }
-
- /*
- * GPHY cores need the firmware code in a persistent and contiguous
- * memory area with a 16 kB boundary aligned start address
- */
- size = fw->size + XRX200_GPHY_FW_ALIGN;
-
- fw_addr = dma_alloc_coherent(&pdev->dev, size, &dev_addr, GFP_KERNEL);
- if (fw_addr) {
- fw_addr = PTR_ALIGN(fw_addr, XRX200_GPHY_FW_ALIGN);
- dev_addr = ALIGN(dev_addr, XRX200_GPHY_FW_ALIGN);
- memcpy(fw_addr, fw->data, fw->size);
- } else {
- dev_err(&pdev->dev, "failed to alloc firmware memory\n");
- }
-
- release_firmware(fw);
- return dev_addr;
-}
-
-static int xway_phy_fw_probe(struct platform_device *pdev)
-{
- dma_addr_t fw_addr;
- struct property *pp;
- unsigned char *phyids;
- int i, ret = 0;
-
- fw_addr = xway_gphy_load(pdev);
- if (!fw_addr)
- return -EINVAL;
- pp = of_find_property(pdev->dev.of_node, "phys", NULL);
- if (!pp)
- return -ENOENT;
- phyids = pp->value;
- for (i = 0; i < pp->length && !ret; i++)
- ret = xrx200_gphy_boot(&pdev->dev, phyids[i], fw_addr);
- if (!ret)
- mdelay(100);
- return ret;
-}
-
-static const struct of_device_id xway_phy_match[] = {
- { .compatible = "lantiq,phy-xrx200" },
- {},
-};
-
-static struct platform_driver xway_phy_driver = {
- .probe = xway_phy_fw_probe,
- .driver = {
- .name = "phy-xrx200",
- .of_match_table = xway_phy_match,
- },
-};
-builtin_platform_driver(xway_phy_driver);
diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile
index 0344e575f522..6ab430d24575 100644
--- a/arch/mips/lib/Makefile
+++ b/arch/mips/lib/Makefile
@@ -3,10 +3,10 @@
#
lib-y += bitops.o csum_partial.o delay.o memcpy.o memset.o \
- mips-atomic.o strlen_user.o strncpy_user.o \
+ mips-atomic.o strncpy_user.o \
strnlen_user.o uncached.o
-obj-y += iomap.o
+obj-y += iomap.o iomap_copy.o
obj-$(CONFIG_PCI) += iomap-pci.o
lib-$(CONFIG_GENERIC_CSUM) := $(filter-out csum_partial.o, $(lib-y))
diff --git a/arch/mips/lib/delay.c b/arch/mips/lib/delay.c
index 2307a3cb2714..68c495ed71e3 100644
--- a/arch/mips/lib/delay.c
+++ b/arch/mips/lib/delay.c
@@ -8,6 +8,7 @@
* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
* Copyright (C) 2007, 2014 Maciej W. Rozycki
*/
+#include <linux/delay.h>
#include <linux/export.h>
#include <linux/param.h>
#include <linux/smp.h>
diff --git a/arch/mips/lib/iomap_copy.c b/arch/mips/lib/iomap_copy.c
new file mode 100644
index 000000000000..368bb38267c5
--- /dev/null
+++ b/arch/mips/lib/iomap_copy.c
@@ -0,0 +1,42 @@
+/*
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <linux/export.h>
+#include <linux/io.h>
+
+/**
+ * __ioread64_copy - copy data from MMIO space, in 64-bit units
+ * @to: destination (must be 64-bit aligned)
+ * @from: source, in MMIO space (must be 64-bit aligned)
+ * @count: number of 64-bit quantities to copy
+ *
+ * Copy data from MMIO space to kernel space, in units of 32 or 64 bits at a
+ * time. Order of access is not guaranteed, nor is a memory barrier
+ * performed afterwards.
+ */
+void __ioread64_copy(void *to, const void __iomem *from, size_t count)
+{
+#ifdef CONFIG_64BIT
+ u64 *dst = to;
+ const u64 __iomem *src = from;
+ const u64 __iomem *end = src + count;
+
+ while (src < end)
+ *dst++ = __raw_readq(src++);
+#else
+ __ioread32_copy(to, from, count * 2);
+#endif
+}
+EXPORT_SYMBOL_GPL(__ioread64_copy);
diff --git a/arch/mips/lib/memcpy.S b/arch/mips/lib/memcpy.S
index 3114a2ed1f4e..03e3304d6ae5 100644
--- a/arch/mips/lib/memcpy.S
+++ b/arch/mips/lib/memcpy.S
@@ -28,6 +28,9 @@
#ifdef CONFIG_MIPS_MALTA
#undef CONFIG_CPU_HAS_PREFETCH
#endif
+#ifdef CONFIG_CPU_MIPSR6
+#undef CONFIG_CPU_HAS_PREFETCH
+#endif
#include <asm/asm.h>
#include <asm/asm-offsets.h>
diff --git a/arch/mips/lib/strlen_user.S b/arch/mips/lib/strlen_user.S
deleted file mode 100644
index 40be22625bc5..000000000000
--- a/arch/mips/lib/strlen_user.S
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1996, 1998, 1999, 2004 by Ralf Baechle
- * Copyright (C) 1999 Silicon Graphics, Inc.
- * Copyright (C) 2011 MIPS Technologies, Inc.
- */
-#include <asm/asm.h>
-#include <asm/asm-offsets.h>
-#include <asm/export.h>
-#include <asm/regdef.h>
-
-#define EX(insn,reg,addr,handler) \
-9: insn reg, addr; \
- .section __ex_table,"a"; \
- PTR 9b, handler; \
- .previous
-
-/*
- * Return the size of a string (including the ending 0)
- *
- * Return 0 for error
- */
- .macro __BUILD_STRLEN_ASM func
-LEAF(__strlen_\func\()_asm)
- LONG_L v0, TI_ADDR_LIMIT($28) # pointer ok?
- and v0, a0
- bnez v0, .Lfault\@
-
- move v0, a0
-.ifeqs "\func", "kernel"
-1: EX(lbu, v1, (v0), .Lfault\@)
-.else
-1: EX(lbue, v1, (v0), .Lfault\@)
-.endif
- PTR_ADDIU v0, 1
- bnez v1, 1b
- PTR_SUBU v0, a0
- jr ra
- END(__strlen_\func\()_asm)
-
-.Lfault\@: move v0, zero
- jr ra
- .endm
-
-#ifndef CONFIG_EVA
- /* Set aliases */
- .global __strlen_user_asm
- .set __strlen_user_asm, __strlen_kernel_asm
-EXPORT_SYMBOL(__strlen_user_asm)
-#endif
-
-__BUILD_STRLEN_ASM kernel
-EXPORT_SYMBOL(__strlen_kernel_asm)
-
-#ifdef CONFIG_EVA
-
- .set push
- .set eva
-__BUILD_STRLEN_ASM user
- .set pop
-EXPORT_SYMBOL(__strlen_user_asm)
-#endif
diff --git a/arch/mips/lib/strncpy_user.S b/arch/mips/lib/strncpy_user.S
index 5267ca800b84..acdff66bd5d2 100644
--- a/arch/mips/lib/strncpy_user.S
+++ b/arch/mips/lib/strncpy_user.S
@@ -35,7 +35,6 @@ LEAF(__strncpy_from_\func\()_asm)
and v0, a1
bnez v0, .Lfault\@
-FEXPORT(__strncpy_from_\func\()_nocheck_asm)
move t0, zero
move v1, a1
.ifeqs "\func","kernel"
@@ -70,16 +69,12 @@ FEXPORT(__strncpy_from_\func\()_nocheck_asm)
#ifndef CONFIG_EVA
/* Set aliases */
.global __strncpy_from_user_asm
- .global __strncpy_from_user_nocheck_asm
.set __strncpy_from_user_asm, __strncpy_from_kernel_asm
- .set __strncpy_from_user_nocheck_asm, __strncpy_from_kernel_nocheck_asm
EXPORT_SYMBOL(__strncpy_from_user_asm)
-EXPORT_SYMBOL(__strncpy_from_user_nocheck_asm)
#endif
__BUILD_STRNCPY_ASM kernel
EXPORT_SYMBOL(__strncpy_from_kernel_asm)
-EXPORT_SYMBOL(__strncpy_from_kernel_nocheck_asm)
#ifdef CONFIG_EVA
.set push
@@ -87,5 +82,4 @@ EXPORT_SYMBOL(__strncpy_from_kernel_nocheck_asm)
__BUILD_STRNCPY_ASM user
.set pop
EXPORT_SYMBOL(__strncpy_from_user_asm)
-EXPORT_SYMBOL(__strncpy_from_user_nocheck_asm)
#endif
diff --git a/arch/mips/lib/strnlen_user.S b/arch/mips/lib/strnlen_user.S
index 860ea99fd70c..e1bacf5a3abe 100644
--- a/arch/mips/lib/strnlen_user.S
+++ b/arch/mips/lib/strnlen_user.S
@@ -32,7 +32,6 @@ LEAF(__strnlen_\func\()_asm)
and v0, a0
bnez v0, .Lfault\@
-FEXPORT(__strnlen_\func\()_nocheck_asm)
move v0, a0
PTR_ADDU a1, a0 # stop pointer
1:
@@ -68,16 +67,12 @@ FEXPORT(__strnlen_\func\()_nocheck_asm)
#ifndef CONFIG_EVA
/* Set aliases */
.global __strnlen_user_asm
- .global __strnlen_user_nocheck_asm
.set __strnlen_user_asm, __strnlen_kernel_asm
- .set __strnlen_user_nocheck_asm, __strnlen_kernel_nocheck_asm
EXPORT_SYMBOL(__strnlen_user_asm)
-EXPORT_SYMBOL(__strnlen_user_nocheck_asm)
#endif
__BUILD_STRNLEN_ASM kernel
EXPORT_SYMBOL(__strnlen_kernel_asm)
-EXPORT_SYMBOL(__strnlen_kernel_nocheck_asm)
#ifdef CONFIG_EVA
@@ -86,5 +81,4 @@ EXPORT_SYMBOL(__strnlen_kernel_nocheck_asm)
__BUILD_STRNLEN_ASM user
.set pop
EXPORT_SYMBOL(__strnlen_user_asm)
-EXPORT_SYMBOL(__strnlen_user_nocheck_asm)
#endif
diff --git a/arch/mips/loongson32/common/platform.c b/arch/mips/loongson32/common/platform.c
index 100f23dfa438..ac584c5823d0 100644
--- a/arch/mips/loongson32/common/platform.c
+++ b/arch/mips/loongson32/common/platform.c
@@ -183,18 +183,20 @@ int ls1x_eth_mux_init(struct platform_device *pdev, void *priv)
}
static struct plat_stmmacenet_data ls1x_eth0_pdata = {
- .bus_id = 0,
- .phy_addr = -1,
+ .bus_id = 0,
+ .phy_addr = -1,
#if defined(CONFIG_LOONGSON1_LS1B)
- .interface = PHY_INTERFACE_MODE_MII,
+ .interface = PHY_INTERFACE_MODE_MII,
#elif defined(CONFIG_LOONGSON1_LS1C)
- .interface = PHY_INTERFACE_MODE_RMII,
+ .interface = PHY_INTERFACE_MODE_RMII,
#endif
- .mdio_bus_data = &ls1x_mdio_bus_data,
- .dma_cfg = &ls1x_eth_dma_cfg,
- .has_gmac = 1,
- .tx_coe = 1,
- .init = ls1x_eth_mux_init,
+ .mdio_bus_data = &ls1x_mdio_bus_data,
+ .dma_cfg = &ls1x_eth_dma_cfg,
+ .has_gmac = 1,
+ .tx_coe = 1,
+ .rx_queues_to_use = 1,
+ .tx_queues_to_use = 1,
+ .init = ls1x_eth_mux_init,
};
static struct resource ls1x_eth0_resources[] = {
@@ -222,14 +224,16 @@ struct platform_device ls1x_eth0_pdev = {
#ifdef CONFIG_LOONGSON1_LS1B
static struct plat_stmmacenet_data ls1x_eth1_pdata = {
- .bus_id = 1,
- .phy_addr = -1,
- .interface = PHY_INTERFACE_MODE_MII,
- .mdio_bus_data = &ls1x_mdio_bus_data,
- .dma_cfg = &ls1x_eth_dma_cfg,
- .has_gmac = 1,
- .tx_coe = 1,
- .init = ls1x_eth_mux_init,
+ .bus_id = 1,
+ .phy_addr = -1,
+ .interface = PHY_INTERFACE_MODE_MII,
+ .mdio_bus_data = &ls1x_mdio_bus_data,
+ .dma_cfg = &ls1x_eth_dma_cfg,
+ .has_gmac = 1,
+ .tx_coe = 1,
+ .rx_queues_to_use = 1,
+ .tx_queues_to_use = 1,
+ .init = ls1x_eth_mux_init,
};
static struct resource ls1x_eth1_resources[] = {
diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c
index 178ca17a5667..34486c138206 100644
--- a/arch/mips/loongson64/common/dma-swiotlb.c
+++ b/arch/mips/loongson64/common/dma-swiotlb.c
@@ -75,19 +75,11 @@ static void loongson_dma_sync_sg_for_device(struct device *dev,
mb();
}
-static int loongson_dma_set_mask(struct device *dev, u64 mask)
+static int loongson_dma_supported(struct device *dev, u64 mask)
{
- if (!dev->dma_mask || !dma_supported(dev, mask))
- return -EIO;
-
- if (mask > DMA_BIT_MASK(loongson_sysconf.dma_mask_bits)) {
- *dev->dma_mask = DMA_BIT_MASK(loongson_sysconf.dma_mask_bits);
- return -EIO;
- }
-
- *dev->dma_mask = mask;
-
- return 0;
+ if (mask > DMA_BIT_MASK(loongson_sysconf.dma_mask_bits))
+ return 0;
+ return swiotlb_dma_supported(dev, mask);
}
dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
@@ -126,8 +118,7 @@ static const struct dma_map_ops loongson_dma_map_ops = {
.sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
.sync_sg_for_device = loongson_dma_sync_sg_for_device,
.mapping_error = swiotlb_dma_mapping_error,
- .dma_supported = swiotlb_dma_supported,
- .set_dma_mask = loongson_dma_set_mask
+ .dma_supported = loongson_dma_supported,
};
void __init plat_swiotlb_setup(void)
diff --git a/arch/mips/loongson64/common/env.c b/arch/mips/loongson64/common/env.c
index 6afa21850267..1e8a955ae5a8 100644
--- a/arch/mips/loongson64/common/env.c
+++ b/arch/mips/loongson64/common/env.c
@@ -90,7 +90,9 @@ void __init prom_init_env(void)
cpu_clock_freq = ecpu->cpu_clock_freq;
loongson_sysconf.cputype = ecpu->cputype;
- if (ecpu->cputype == Loongson_3A) {
+ switch (ecpu->cputype) {
+ case Legacy_3A:
+ case Loongson_3A:
loongson_sysconf.cores_per_node = 4;
loongson_sysconf.cores_per_package = 4;
smp_group[0] = 0x900000003ff01000;
@@ -111,7 +113,9 @@ void __init prom_init_env(void)
loongson_freqctrl[3] = 0x900030001fe001d0;
loongson_sysconf.ht_control_base = 0x90000EFDFB000000;
loongson_sysconf.workarounds = WORKAROUND_CPUFREQ;
- } else if (ecpu->cputype == Loongson_3B) {
+ break;
+ case Legacy_3B:
+ case Loongson_3B:
loongson_sysconf.cores_per_node = 4; /* One chip has 2 nodes */
loongson_sysconf.cores_per_package = 8;
smp_group[0] = 0x900000003ff01000;
@@ -132,7 +136,8 @@ void __init prom_init_env(void)
loongson_freqctrl[3] = 0x900060001fe001d0;
loongson_sysconf.ht_control_base = 0x90001EFDFB000000;
loongson_sysconf.workarounds = WORKAROUND_CPUHOTPLUG;
- } else {
+ break;
+ default:
loongson_sysconf.cores_per_node = 1;
loongson_sysconf.cores_per_package = 1;
loongson_chipcfg[0] = 0x900000001fe00180;
@@ -193,6 +198,7 @@ void __init prom_init_env(void)
break;
case PRID_REV_LOONGSON3A_R1:
case PRID_REV_LOONGSON3A_R2:
+ case PRID_REV_LOONGSON3A_R3:
cpu_clock_freq = 900000000;
break;
case PRID_REV_LOONGSON3B_R1:
diff --git a/arch/mips/loongson64/common/init.c b/arch/mips/loongson64/common/init.c
index 9b987fe98b5b..6ef17120722f 100644
--- a/arch/mips/loongson64/common/init.c
+++ b/arch/mips/loongson64/common/init.c
@@ -10,13 +10,25 @@
#include <linux/bootmem.h>
#include <asm/bootinfo.h>
+#include <asm/traps.h>
#include <asm/smp-ops.h>
+#include <asm/cacheflush.h>
#include <loongson.h>
/* Loongson CPU address windows config space base address */
unsigned long __maybe_unused _loongson_addrwincfg_base;
+static void __init mips_nmi_setup(void)
+{
+ void *base;
+ extern char except_vec_nmi;
+
+ base = (void *)(CAC_BASE + 0x380);
+ memcpy(base, &except_vec_nmi, 0x80);
+ flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
+}
+
void __init prom_init(void)
{
#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
@@ -40,6 +52,7 @@ void __init prom_init(void)
/*init the uart base address */
prom_init_uart_base();
register_smp_ops(&loongson3_smp_ops);
+ board_nmi_handler_setup = mips_nmi_setup;
}
void __init prom_free_prom_memory(void)
diff --git a/arch/mips/loongson64/lemote-2f/clock.c b/arch/mips/loongson64/lemote-2f/clock.c
index a78fb657068c..8281334df9c8 100644
--- a/arch/mips/loongson64/lemote-2f/clock.c
+++ b/arch/mips/loongson64/lemote-2f/clock.c
@@ -80,6 +80,9 @@ EXPORT_SYMBOL(clk_disable);
unsigned long clk_get_rate(struct clk *clk)
{
+ if (!clk)
+ return 0;
+
return (unsigned long)clk->rate;
}
EXPORT_SYMBOL(clk_get_rate);
diff --git a/arch/mips/loongson64/loongson-3/irq.c b/arch/mips/loongson64/loongson-3/irq.c
index 548f759454dc..7202e52cd046 100644
--- a/arch/mips/loongson64/loongson-3/irq.c
+++ b/arch/mips/loongson64/loongson-3/irq.c
@@ -9,18 +9,69 @@
#include "smp.h"
+extern void loongson3_send_irq_by_ipi(int cpu, int irqs);
+
+unsigned int irq_cpu[16] = {[0 ... 15] = -1};
unsigned int ht_irq[] = {0, 1, 3, 4, 5, 6, 7, 8, 12, 14, 15};
+unsigned int local_irq = 1<<0 | 1<<1 | 1<<2 | 1<<7 | 1<<8 | 1<<12;
+
+int plat_set_irq_affinity(struct irq_data *d, const struct cpumask *affinity,
+ bool force)
+{
+ unsigned int cpu;
+ struct cpumask new_affinity;
+
+ /* I/O devices are connected on package-0 */
+ cpumask_copy(&new_affinity, affinity);
+ for_each_cpu(cpu, affinity)
+ if (cpu_data[cpu].package > 0)
+ cpumask_clear_cpu(cpu, &new_affinity);
+
+ if (cpumask_empty(&new_affinity))
+ return -EINVAL;
+
+ cpumask_copy(d->common->affinity, &new_affinity);
+
+ return IRQ_SET_MASK_OK_NOCOPY;
+}
static void ht_irqdispatch(void)
{
unsigned int i, irq;
+ struct irq_data *irqd;
+ struct cpumask affinity;
irq = LOONGSON_HT1_INT_VECTOR(0);
LOONGSON_HT1_INT_VECTOR(0) = irq; /* Acknowledge the IRQs */
for (i = 0; i < ARRAY_SIZE(ht_irq); i++) {
- if (irq & (0x1 << ht_irq[i]))
+ if (!(irq & (0x1 << ht_irq[i])))
+ continue;
+
+ /* handled by local core */
+ if (local_irq & (0x1 << ht_irq[i])) {
do_IRQ(ht_irq[i]);
+ continue;
+ }
+
+ irqd = irq_get_irq_data(ht_irq[i]);
+ cpumask_and(&affinity, irqd->common->affinity, cpu_active_mask);
+ if (cpumask_empty(&affinity)) {
+ do_IRQ(ht_irq[i]);
+ continue;
+ }
+
+ irq_cpu[ht_irq[i]] = cpumask_next(irq_cpu[ht_irq[i]], &affinity);
+ if (irq_cpu[ht_irq[i]] >= nr_cpu_ids)
+ irq_cpu[ht_irq[i]] = cpumask_first(&affinity);
+
+ if (irq_cpu[ht_irq[i]] == 0) {
+ do_IRQ(ht_irq[i]);
+ continue;
+ }
+
+ /* balanced by other cores */
+ loongson3_send_irq_by_ipi(irq_cpu[ht_irq[i]], (0x1 << ht_irq[i]));
}
}
@@ -120,11 +171,16 @@ void irq_router_init(void)
void __init mach_init_irq(void)
{
+ struct irq_chip *chip;
+
clear_c0_status(ST0_IM | ST0_BEV);
irq_router_init();
mips_cpu_irq_init();
init_i8259_irqs();
+ chip = irq_get_chip(I8259A_IRQ_BASE);
+ chip->irq_set_affinity = plat_set_irq_affinity;
+
irq_set_chip_and_handler(LOONGSON_UART_IRQ,
&loongson_irq_chip, handle_level_irq);
diff --git a/arch/mips/loongson64/loongson-3/smp.c b/arch/mips/loongson64/loongson-3/smp.c
index 64659fc73940..8501109bb0f0 100644
--- a/arch/mips/loongson64/loongson-3/smp.c
+++ b/arch/mips/loongson64/loongson-3/smp.c
@@ -254,13 +254,21 @@ loongson3_send_ipi_mask(const struct cpumask *mask, unsigned int action)
loongson3_ipi_write32((u32)action, ipi_set0_regs[cpu_logical_map(i)]);
}
+#define IPI_IRQ_OFFSET 6
+
+void loongson3_send_irq_by_ipi(int cpu, int irqs)
+{
+ loongson3_ipi_write32(irqs << IPI_IRQ_OFFSET, ipi_set0_regs[cpu_logical_map(cpu)]);
+}
+
void loongson3_ipi_interrupt(struct pt_regs *regs)
{
int i, cpu = smp_processor_id();
- unsigned int action, c0count;
+ unsigned int action, c0count, irqs;
/* Load the ipi register to figure out what we're supposed to do */
action = loongson3_ipi_read32(ipi_status0_regs[cpu_logical_map(cpu)]);
+ irqs = action >> IPI_IRQ_OFFSET;
/* Clear the ipi register to clear the interrupt */
loongson3_ipi_write32((u32)action, ipi_clear0_regs[cpu_logical_map(cpu)]);
@@ -282,6 +290,14 @@ void loongson3_ipi_interrupt(struct pt_regs *regs)
core0_c0count[i] = c0count;
__wbflush(); /* Let others see the result ASAP */
}
+
+ if (irqs) {
+ int irq;
+ while ((irq = ffs(irqs))) {
+ do_IRQ(irq-1);
+ irqs &= ~(1<<(irq-1));
+ }
+ }
}
#define MAX_LOOPS 800
@@ -303,8 +319,8 @@ static void loongson3_init_secondary(void)
loongson3_ipi_write32(0xffffffff, ipi_en0_regs[cpu_logical_map(i)]);
per_cpu(cpu_state, cpu) = CPU_ONLINE;
- cpu_data[cpu].core =
- cpu_logical_map(cpu) % loongson_sysconf.cores_per_package;
+ cpu_set_core(&cpu_data[cpu],
+ cpu_logical_map(cpu) % loongson_sysconf.cores_per_package);
cpu_data[cpu].package =
cpu_logical_map(cpu) / loongson_sysconf.cores_per_package;
@@ -370,7 +386,8 @@ static void __init loongson3_smp_setup(void)
ipi_status0_regs_init();
ipi_en0_regs_init();
ipi_mailbox_buf_init();
- cpu_data[0].core = cpu_logical_map(0) % loongson_sysconf.cores_per_package;
+ cpu_set_core(&cpu_data[0],
+ cpu_logical_map(0) % loongson_sysconf.cores_per_package);
cpu_data[0].package = cpu_logical_map(0) / loongson_sysconf.cores_per_package;
}
@@ -383,7 +400,7 @@ static void __init loongson3_prepare_cpus(unsigned int max_cpus)
/*
* Setup the PC, SP, and GP of a secondary processor and start it runing!
*/
-static void loongson3_boot_secondary(int cpu, struct task_struct *idle)
+static int loongson3_boot_secondary(int cpu, struct task_struct *idle)
{
unsigned long startargs[4];
@@ -406,6 +423,7 @@ static void loongson3_boot_secondary(int cpu, struct task_struct *idle)
(void *)(ipi_mailbox_buf[cpu_logical_map(cpu)]+0x8));
loongson3_ipi_write64(startargs[0],
(void *)(ipi_mailbox_buf[cpu_logical_map(cpu)]+0x0));
+ return 0;
}
#ifdef CONFIG_HOTPLUG_CPU
@@ -503,7 +521,7 @@ static void loongson3a_r1_play_dead(int *state_addr)
: "a1");
}
-static void loongson3a_r2_play_dead(int *state_addr)
+static void loongson3a_r2r3_play_dead(int *state_addr)
{
register int val;
register long cpuid, core, node, count;
@@ -664,8 +682,9 @@ void play_dead(void)
(void *)CKSEG1ADDR((unsigned long)loongson3a_r1_play_dead);
break;
case PRID_REV_LOONGSON3A_R2:
+ case PRID_REV_LOONGSON3A_R3:
play_dead_at_ckseg1 =
- (void *)CKSEG1ADDR((unsigned long)loongson3a_r2_play_dead);
+ (void *)CKSEG1ADDR((unsigned long)loongson3a_r2r3_play_dead);
break;
case PRID_REV_LOONGSON3B_R1:
case PRID_REV_LOONGSON3B_R2:
@@ -680,7 +699,7 @@ void play_dead(void)
static int loongson3_disable_clock(unsigned int cpu)
{
- uint64_t core_id = cpu_data[cpu].core;
+ uint64_t core_id = cpu_core(&cpu_data[cpu]);
uint64_t package_id = cpu_data[cpu].package;
if ((read_c0_prid() & PRID_REV_MASK) == PRID_REV_LOONGSON3A_R1) {
@@ -694,7 +713,7 @@ static int loongson3_disable_clock(unsigned int cpu)
static int loongson3_enable_clock(unsigned int cpu)
{
- uint64_t core_id = cpu_data[cpu].core;
+ uint64_t core_id = cpu_core(&cpu_data[cpu]);
uint64_t package_id = cpu_data[cpu].package;
if ((read_c0_prid() & PRID_REV_MASK) == PRID_REV_LOONGSON3A_R1) {
@@ -717,7 +736,7 @@ early_initcall(register_loongson3_notifier);
#endif
-struct plat_smp_ops loongson3_smp_ops = {
+const struct plat_smp_ops loongson3_smp_ops = {
.send_ipi_single = loongson3_send_ipi_single,
.send_ipi_mask = loongson3_send_ipi_mask,
.init_secondary = loongson3_init_secondary,
diff --git a/arch/mips/math-emu/Makefile b/arch/mips/math-emu/Makefile
index e9bbc2a6526f..e9f10b88b695 100644
--- a/arch/mips/math-emu/Makefile
+++ b/arch/mips/math-emu/Makefile
@@ -4,9 +4,11 @@
obj-y += cp1emu.o ieee754dp.o ieee754sp.o ieee754.o \
dp_div.o dp_mul.o dp_sub.o dp_add.o dp_fsp.o dp_cmp.o dp_simple.o \
- dp_tint.o dp_fint.o dp_maddf.o dp_2008class.o dp_fmin.o dp_fmax.o \
+ dp_tint.o dp_fint.o dp_rint.o dp_maddf.o dp_2008class.o dp_fmin.o \
+ dp_fmax.o \
sp_div.o sp_mul.o sp_sub.o sp_add.o sp_fdp.o sp_cmp.o sp_simple.o \
- sp_tint.o sp_fint.o sp_maddf.o sp_2008class.o sp_fmin.o sp_fmax.o \
+ sp_tint.o sp_fint.o sp_rint.o sp_maddf.o sp_2008class.o sp_fmin.o \
+ sp_fmax.o \
dsemul.o
lib-y += ieee754d.o \
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c
index f12fde10c8ad..16d9ef5a78c5 100644
--- a/arch/mips/math-emu/cp1emu.c
+++ b/arch/mips/math-emu/cp1emu.c
@@ -58,7 +58,7 @@ static int fpu_emu(struct pt_regs *, struct mips_fpu_struct *,
mips_instruction);
static int fpux_emu(struct pt_regs *,
- struct mips_fpu_struct *, mips_instruction, void *__user *);
+ struct mips_fpu_struct *, mips_instruction, void __user **);
/* Control registers */
@@ -830,12 +830,12 @@ do { \
} while (0)
#define DIFROMREG(di, x) \
- ((di) = get_fpr64(&ctx->fpr[(x) & ~(cop1_64bit(xcp) == 0)], 0))
+ ((di) = get_fpr64(&ctx->fpr[(x) & ~(cop1_64bit(xcp) ^ 1)], 0))
#define DITOREG(di, x) \
do { \
unsigned fpr, i; \
- fpr = (x) & ~(cop1_64bit(xcp) == 0); \
+ fpr = (x) & ~(cop1_64bit(xcp) ^ 1); \
set_fpr64(&ctx->fpr[fpr], 0, di); \
for (i = 1; i < ARRAY_SIZE(ctx->fpr[x].val64); i++) \
set_fpr64(&ctx->fpr[fpr], i, 0); \
@@ -973,7 +973,7 @@ static inline void cop1_ctc(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
*/
static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
- struct mm_decoded_insn dec_insn, void *__user *fault_addr)
+ struct mm_decoded_insn dec_insn, void __user **fault_addr)
{
unsigned long contpc = xcp->cp0_epc + dec_insn.pc_inc;
unsigned int cond, cbit, bit0;
@@ -1142,7 +1142,7 @@ emul:
case mfhc_op:
if (!cpu_has_mips_r2_r6)
- goto sigill;
+ return SIGILL;
/* copregister rd -> gpr[rt] */
if (MIPSInst_RT(ir) != 0) {
@@ -1153,7 +1153,7 @@ emul:
case mthc_op:
if (!cpu_has_mips_r2_r6)
- goto sigill;
+ return SIGILL;
/* copregister rd <- gpr[rt] */
SITOHREG(xcp->regs[MIPSInst_RT(ir)], MIPSInst_RD(ir));
@@ -1195,9 +1195,11 @@ emul:
bit0 = get_fpr32(fpr, 0) & 0x1;
switch (MIPSInst_RS(ir)) {
case bc1eqz_op:
+ MIPS_FPU_EMU_INC_STATS(bc1eqz);
cond = bit0 == 0;
break;
case bc1nez_op:
+ MIPS_FPU_EMU_INC_STATS(bc1nez);
cond = bit0 != 0;
break;
}
@@ -1230,6 +1232,7 @@ emul:
break;
}
branch_common:
+ MIPS_FPU_EMU_INC_STATS(branches);
set_delay_slot(xcp);
if (cond) {
/*
@@ -1376,7 +1379,6 @@ branch_common:
xcp->regs[MIPSInst_RS(ir)];
break;
default:
-sigill:
return SIGILL;
}
@@ -1461,7 +1463,7 @@ DEF3OP(nmadd, dp, ieee754dp_mul, ieee754dp_add, ieee754dp_neg);
DEF3OP(nmsub, dp, ieee754dp_mul, ieee754dp_sub, ieee754dp_neg);
static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
- mips_instruction ir, void *__user *fault_addr)
+ mips_instruction ir, void __user **fault_addr)
{
unsigned rcsr = 0; /* resulting csr */
@@ -1683,15 +1685,19 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
switch (MIPSInst_FUNC(ir)) {
/* binary ops */
case fadd_op:
+ MIPS_FPU_EMU_INC_STATS(add_s);
handler.b = ieee754sp_add;
goto scopbop;
case fsub_op:
+ MIPS_FPU_EMU_INC_STATS(sub_s);
handler.b = ieee754sp_sub;
goto scopbop;
case fmul_op:
+ MIPS_FPU_EMU_INC_STATS(mul_s);
handler.b = ieee754sp_mul;
goto scopbop;
case fdiv_op:
+ MIPS_FPU_EMU_INC_STATS(div_s);
handler.b = ieee754sp_div;
goto scopbop;
@@ -1700,6 +1706,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
if (!cpu_has_mips_2_3_4_5_r)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(sqrt_s);
handler.u = ieee754sp_sqrt;
goto scopuop;
@@ -1712,6 +1719,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
if (!cpu_has_mips_4_5_64_r2_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(rsqrt_s);
handler.u = fpemu_sp_rsqrt;
goto scopuop;
@@ -1719,6 +1727,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
if (!cpu_has_mips_4_5_64_r2_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(recip_s);
handler.u = fpemu_sp_recip;
goto scopuop;
@@ -1755,6 +1764,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(seleqz_s);
SPFROMREG(rv.s, MIPSInst_FT(ir));
if (rv.w & 0x1)
rv.w = 0;
@@ -1766,6 +1776,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(selnez_s);
SPFROMREG(rv.s, MIPSInst_FT(ir));
if (rv.w & 0x1)
SPFROMREG(rv.s, MIPSInst_FS(ir));
@@ -1779,6 +1790,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(maddf_s);
SPFROMREG(ft, MIPSInst_FT(ir));
SPFROMREG(fs, MIPSInst_FS(ir));
SPFROMREG(fd, MIPSInst_FD(ir));
@@ -1792,6 +1804,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(msubf_s);
SPFROMREG(ft, MIPSInst_FT(ir));
SPFROMREG(fs, MIPSInst_FS(ir));
SPFROMREG(fd, MIPSInst_FD(ir));
@@ -1805,9 +1818,9 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(rint_s);
SPFROMREG(fs, MIPSInst_FS(ir));
- rv.l = ieee754sp_tlong(fs);
- rv.s = ieee754sp_flong(rv.l);
+ rv.s = ieee754sp_rint(fs);
goto copcsr;
}
@@ -1817,6 +1830,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(class_s);
SPFROMREG(fs, MIPSInst_FS(ir));
rv.w = ieee754sp_2008class(fs);
rfmt = w_fmt;
@@ -1829,6 +1843,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(min_s);
SPFROMREG(ft, MIPSInst_FT(ir));
SPFROMREG(fs, MIPSInst_FS(ir));
rv.s = ieee754sp_fmin(fs, ft);
@@ -1841,6 +1856,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(mina_s);
SPFROMREG(ft, MIPSInst_FT(ir));
SPFROMREG(fs, MIPSInst_FS(ir));
rv.s = ieee754sp_fmina(fs, ft);
@@ -1853,6 +1869,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(max_s);
SPFROMREG(ft, MIPSInst_FT(ir));
SPFROMREG(fs, MIPSInst_FS(ir));
rv.s = ieee754sp_fmax(fs, ft);
@@ -1865,6 +1882,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(maxa_s);
SPFROMREG(ft, MIPSInst_FT(ir));
SPFROMREG(fs, MIPSInst_FS(ir));
rv.s = ieee754sp_fmaxa(fs, ft);
@@ -1872,15 +1890,18 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
}
case fabs_op:
+ MIPS_FPU_EMU_INC_STATS(abs_s);
handler.u = ieee754sp_abs;
goto scopuop;
case fneg_op:
+ MIPS_FPU_EMU_INC_STATS(neg_s);
handler.u = ieee754sp_neg;
goto scopuop;
case fmov_op:
/* an easy one */
+ MIPS_FPU_EMU_INC_STATS(mov_s);
SPFROMREG(rv.s, MIPSInst_FS(ir));
goto copcsr;
@@ -1923,12 +1944,14 @@ copcsr:
return SIGILL; /* not defined */
case fcvtd_op:
+ MIPS_FPU_EMU_INC_STATS(cvt_d_s);
SPFROMREG(fs, MIPSInst_FS(ir));
rv.d = ieee754dp_fsp(fs);
rfmt = d_fmt;
goto copcsr;
case fcvtw_op:
+ MIPS_FPU_EMU_INC_STATS(cvt_w_s);
SPFROMREG(fs, MIPSInst_FS(ir));
rv.w = ieee754sp_tint(fs);
rfmt = w_fmt;
@@ -1941,6 +1964,15 @@ copcsr:
if (!cpu_has_mips_2_3_4_5_r)
return SIGILL;
+ if (MIPSInst_FUNC(ir) == fceil_op)
+ MIPS_FPU_EMU_INC_STATS(ceil_w_s);
+ if (MIPSInst_FUNC(ir) == ffloor_op)
+ MIPS_FPU_EMU_INC_STATS(floor_w_s);
+ if (MIPSInst_FUNC(ir) == fround_op)
+ MIPS_FPU_EMU_INC_STATS(round_w_s);
+ if (MIPSInst_FUNC(ir) == ftrunc_op)
+ MIPS_FPU_EMU_INC_STATS(trunc_w_s);
+
oldrm = ieee754_csr.rm;
SPFROMREG(fs, MIPSInst_FS(ir));
ieee754_csr.rm = MIPSInst_FUNC(ir);
@@ -1953,6 +1985,7 @@ copcsr:
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(sel_s);
SPFROMREG(fd, MIPSInst_FD(ir));
if (fd.bits & 0x1)
SPFROMREG(rv.s, MIPSInst_FT(ir));
@@ -1964,6 +1997,7 @@ copcsr:
if (!cpu_has_mips_3_4_5_64_r2_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(cvt_l_s);
SPFROMREG(fs, MIPSInst_FS(ir));
rv.l = ieee754sp_tlong(fs);
rfmt = l_fmt;
@@ -1976,6 +2010,15 @@ copcsr:
if (!cpu_has_mips_3_4_5_64_r2_r6)
return SIGILL;
+ if (MIPSInst_FUNC(ir) == fceill_op)
+ MIPS_FPU_EMU_INC_STATS(ceil_l_s);
+ if (MIPSInst_FUNC(ir) == ffloorl_op)
+ MIPS_FPU_EMU_INC_STATS(floor_l_s);
+ if (MIPSInst_FUNC(ir) == froundl_op)
+ MIPS_FPU_EMU_INC_STATS(round_l_s);
+ if (MIPSInst_FUNC(ir) == ftruncl_op)
+ MIPS_FPU_EMU_INC_STATS(trunc_l_s);
+
oldrm = ieee754_csr.rm;
SPFROMREG(fs, MIPSInst_FS(ir));
ieee754_csr.rm = MIPSInst_FUNC(ir);
@@ -2017,15 +2060,19 @@ copcsr:
switch (MIPSInst_FUNC(ir)) {
/* binary ops */
case fadd_op:
+ MIPS_FPU_EMU_INC_STATS(add_d);
handler.b = ieee754dp_add;
goto dcopbop;
case fsub_op:
+ MIPS_FPU_EMU_INC_STATS(sub_d);
handler.b = ieee754dp_sub;
goto dcopbop;
case fmul_op:
+ MIPS_FPU_EMU_INC_STATS(mul_d);
handler.b = ieee754dp_mul;
goto dcopbop;
case fdiv_op:
+ MIPS_FPU_EMU_INC_STATS(div_d);
handler.b = ieee754dp_div;
goto dcopbop;
@@ -2034,6 +2081,7 @@ copcsr:
if (!cpu_has_mips_2_3_4_5_r)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(sqrt_d);
handler.u = ieee754dp_sqrt;
goto dcopuop;
/*
@@ -2045,12 +2093,14 @@ copcsr:
if (!cpu_has_mips_4_5_64_r2_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(rsqrt_d);
handler.u = fpemu_dp_rsqrt;
goto dcopuop;
case frecip_op:
if (!cpu_has_mips_4_5_64_r2_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(recip_d);
handler.u = fpemu_dp_recip;
goto dcopuop;
case fmovc_op:
@@ -2084,6 +2134,7 @@ copcsr:
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(seleqz_d);
DPFROMREG(rv.d, MIPSInst_FT(ir));
if (rv.l & 0x1)
rv.l = 0;
@@ -2095,6 +2146,7 @@ copcsr:
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(selnez_d);
DPFROMREG(rv.d, MIPSInst_FT(ir));
if (rv.l & 0x1)
DPFROMREG(rv.d, MIPSInst_FS(ir));
@@ -2108,6 +2160,7 @@ copcsr:
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(maddf_d);
DPFROMREG(ft, MIPSInst_FT(ir));
DPFROMREG(fs, MIPSInst_FS(ir));
DPFROMREG(fd, MIPSInst_FD(ir));
@@ -2121,6 +2174,7 @@ copcsr:
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(msubf_d);
DPFROMREG(ft, MIPSInst_FT(ir));
DPFROMREG(fs, MIPSInst_FS(ir));
DPFROMREG(fd, MIPSInst_FD(ir));
@@ -2134,9 +2188,9 @@ copcsr:
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(rint_d);
DPFROMREG(fs, MIPSInst_FS(ir));
- rv.l = ieee754dp_tlong(fs);
- rv.d = ieee754dp_flong(rv.l);
+ rv.d = ieee754dp_rint(fs);
goto copcsr;
}
@@ -2146,9 +2200,10 @@ copcsr:
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(class_d);
DPFROMREG(fs, MIPSInst_FS(ir));
- rv.w = ieee754dp_2008class(fs);
- rfmt = w_fmt;
+ rv.l = ieee754dp_2008class(fs);
+ rfmt = l_fmt;
break;
}
@@ -2158,6 +2213,7 @@ copcsr:
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(min_d);
DPFROMREG(ft, MIPSInst_FT(ir));
DPFROMREG(fs, MIPSInst_FS(ir));
rv.d = ieee754dp_fmin(fs, ft);
@@ -2170,6 +2226,7 @@ copcsr:
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(mina_d);
DPFROMREG(ft, MIPSInst_FT(ir));
DPFROMREG(fs, MIPSInst_FS(ir));
rv.d = ieee754dp_fmina(fs, ft);
@@ -2182,6 +2239,7 @@ copcsr:
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(max_d);
DPFROMREG(ft, MIPSInst_FT(ir));
DPFROMREG(fs, MIPSInst_FS(ir));
rv.d = ieee754dp_fmax(fs, ft);
@@ -2194,6 +2252,7 @@ copcsr:
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(maxa_d);
DPFROMREG(ft, MIPSInst_FT(ir));
DPFROMREG(fs, MIPSInst_FS(ir));
rv.d = ieee754dp_fmaxa(fs, ft);
@@ -2201,15 +2260,18 @@ copcsr:
}
case fabs_op:
+ MIPS_FPU_EMU_INC_STATS(abs_d);
handler.u = ieee754dp_abs;
goto dcopuop;
case fneg_op:
+ MIPS_FPU_EMU_INC_STATS(neg_d);
handler.u = ieee754dp_neg;
goto dcopuop;
case fmov_op:
/* an easy one */
+ MIPS_FPU_EMU_INC_STATS(mov_d);
DPFROMREG(rv.d, MIPSInst_FS(ir));
goto copcsr;
@@ -2229,6 +2291,7 @@ dcopuop:
* unary conv ops
*/
case fcvts_op:
+ MIPS_FPU_EMU_INC_STATS(cvt_s_d);
DPFROMREG(fs, MIPSInst_FS(ir));
rv.s = ieee754sp_fdp(fs);
rfmt = s_fmt;
@@ -2238,6 +2301,7 @@ dcopuop:
return SIGILL; /* not defined */
case fcvtw_op:
+ MIPS_FPU_EMU_INC_STATS(cvt_w_d);
DPFROMREG(fs, MIPSInst_FS(ir));
rv.w = ieee754dp_tint(fs); /* wrong */
rfmt = w_fmt;
@@ -2250,6 +2314,15 @@ dcopuop:
if (!cpu_has_mips_2_3_4_5_r)
return SIGILL;
+ if (MIPSInst_FUNC(ir) == fceil_op)
+ MIPS_FPU_EMU_INC_STATS(ceil_w_d);
+ if (MIPSInst_FUNC(ir) == ffloor_op)
+ MIPS_FPU_EMU_INC_STATS(floor_w_d);
+ if (MIPSInst_FUNC(ir) == fround_op)
+ MIPS_FPU_EMU_INC_STATS(round_w_d);
+ if (MIPSInst_FUNC(ir) == ftrunc_op)
+ MIPS_FPU_EMU_INC_STATS(trunc_w_d);
+
oldrm = ieee754_csr.rm;
DPFROMREG(fs, MIPSInst_FS(ir));
ieee754_csr.rm = MIPSInst_FUNC(ir);
@@ -2262,6 +2335,7 @@ dcopuop:
if (!cpu_has_mips_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(sel_d);
DPFROMREG(fd, MIPSInst_FD(ir));
if (fd.bits & 0x1)
DPFROMREG(rv.d, MIPSInst_FT(ir));
@@ -2273,6 +2347,7 @@ dcopuop:
if (!cpu_has_mips_3_4_5_64_r2_r6)
return SIGILL;
+ MIPS_FPU_EMU_INC_STATS(cvt_l_d);
DPFROMREG(fs, MIPSInst_FS(ir));
rv.l = ieee754dp_tlong(fs);
rfmt = l_fmt;
@@ -2285,6 +2360,15 @@ dcopuop:
if (!cpu_has_mips_3_4_5_64_r2_r6)
return SIGILL;
+ if (MIPSInst_FUNC(ir) == fceill_op)
+ MIPS_FPU_EMU_INC_STATS(ceil_l_d);
+ if (MIPSInst_FUNC(ir) == ffloorl_op)
+ MIPS_FPU_EMU_INC_STATS(floor_l_d);
+ if (MIPSInst_FUNC(ir) == froundl_op)
+ MIPS_FPU_EMU_INC_STATS(round_l_d);
+ if (MIPSInst_FUNC(ir) == ftruncl_op)
+ MIPS_FPU_EMU_INC_STATS(trunc_l_d);
+
oldrm = ieee754_csr.rm;
DPFROMREG(fs, MIPSInst_FS(ir));
ieee754_csr.rm = MIPSInst_FUNC(ir);
@@ -2326,12 +2410,14 @@ dcopuop:
switch (MIPSInst_FUNC(ir)) {
case fcvts_op:
/* convert word to single precision real */
+ MIPS_FPU_EMU_INC_STATS(cvt_s_w);
SPFROMREG(fs, MIPSInst_FS(ir));
rv.s = ieee754sp_fint(fs.bits);
rfmt = s_fmt;
goto copcsr;
case fcvtd_op:
/* convert word to double precision real */
+ MIPS_FPU_EMU_INC_STATS(cvt_d_w);
SPFROMREG(fs, MIPSInst_FS(ir));
rv.d = ieee754dp_fint(fs.bits);
rfmt = d_fmt;
@@ -2351,6 +2437,90 @@ dcopuop:
(MIPSInst_FUNC(ir) & 0x20))
return SIGILL;
+ if (!sig) {
+ if (!(MIPSInst_FUNC(ir) & PREDICATE_BIT)) {
+ switch (cmpop) {
+ case 0:
+ MIPS_FPU_EMU_INC_STATS(cmp_af_s);
+ break;
+ case 1:
+ MIPS_FPU_EMU_INC_STATS(cmp_un_s);
+ break;
+ case 2:
+ MIPS_FPU_EMU_INC_STATS(cmp_eq_s);
+ break;
+ case 3:
+ MIPS_FPU_EMU_INC_STATS(cmp_ueq_s);
+ break;
+ case 4:
+ MIPS_FPU_EMU_INC_STATS(cmp_lt_s);
+ break;
+ case 5:
+ MIPS_FPU_EMU_INC_STATS(cmp_ult_s);
+ break;
+ case 6:
+ MIPS_FPU_EMU_INC_STATS(cmp_le_s);
+ break;
+ case 7:
+ MIPS_FPU_EMU_INC_STATS(cmp_ule_s);
+ break;
+ }
+ } else {
+ switch (cmpop) {
+ case 1:
+ MIPS_FPU_EMU_INC_STATS(cmp_or_s);
+ break;
+ case 2:
+ MIPS_FPU_EMU_INC_STATS(cmp_une_s);
+ break;
+ case 3:
+ MIPS_FPU_EMU_INC_STATS(cmp_ne_s);
+ break;
+ }
+ }
+ } else {
+ if (!(MIPSInst_FUNC(ir) & PREDICATE_BIT)) {
+ switch (cmpop) {
+ case 0:
+ MIPS_FPU_EMU_INC_STATS(cmp_saf_s);
+ break;
+ case 1:
+ MIPS_FPU_EMU_INC_STATS(cmp_sun_s);
+ break;
+ case 2:
+ MIPS_FPU_EMU_INC_STATS(cmp_seq_s);
+ break;
+ case 3:
+ MIPS_FPU_EMU_INC_STATS(cmp_sueq_s);
+ break;
+ case 4:
+ MIPS_FPU_EMU_INC_STATS(cmp_slt_s);
+ break;
+ case 5:
+ MIPS_FPU_EMU_INC_STATS(cmp_sult_s);
+ break;
+ case 6:
+ MIPS_FPU_EMU_INC_STATS(cmp_sle_s);
+ break;
+ case 7:
+ MIPS_FPU_EMU_INC_STATS(cmp_sule_s);
+ break;
+ }
+ } else {
+ switch (cmpop) {
+ case 1:
+ MIPS_FPU_EMU_INC_STATS(cmp_sor_s);
+ break;
+ case 2:
+ MIPS_FPU_EMU_INC_STATS(cmp_sune_s);
+ break;
+ case 3:
+ MIPS_FPU_EMU_INC_STATS(cmp_sne_s);
+ break;
+ }
+ }
+ }
+
/* fmt is w_fmt for single precision so fix it */
rfmt = s_fmt;
/* default to false */
@@ -2388,13 +2558,13 @@ dcopuop:
break;
default:
/* Reserved R6 ops */
- pr_err("Reserved MIPS R6 CMP.condn.S operation\n");
return SIGILL;
}
}
break;
}
}
+ break;
}
case l_fmt:
@@ -2407,11 +2577,13 @@ dcopuop:
switch (MIPSInst_FUNC(ir)) {
case fcvts_op:
/* convert long to single precision real */
+ MIPS_FPU_EMU_INC_STATS(cvt_s_l);
rv.s = ieee754sp_flong(bits);
rfmt = s_fmt;
goto copcsr;
case fcvtd_op:
/* convert long to double precision real */
+ MIPS_FPU_EMU_INC_STATS(cvt_d_l);
rv.d = ieee754dp_flong(bits);
rfmt = d_fmt;
goto copcsr;
@@ -2425,6 +2597,90 @@ dcopuop:
(MIPSInst_FUNC(ir) & 0x20))
return SIGILL;
+ if (!sig) {
+ if (!(MIPSInst_FUNC(ir) & PREDICATE_BIT)) {
+ switch (cmpop) {
+ case 0:
+ MIPS_FPU_EMU_INC_STATS(cmp_af_d);
+ break;
+ case 1:
+ MIPS_FPU_EMU_INC_STATS(cmp_un_d);
+ break;
+ case 2:
+ MIPS_FPU_EMU_INC_STATS(cmp_eq_d);
+ break;
+ case 3:
+ MIPS_FPU_EMU_INC_STATS(cmp_ueq_d);
+ break;
+ case 4:
+ MIPS_FPU_EMU_INC_STATS(cmp_lt_d);
+ break;
+ case 5:
+ MIPS_FPU_EMU_INC_STATS(cmp_ult_d);
+ break;
+ case 6:
+ MIPS_FPU_EMU_INC_STATS(cmp_le_d);
+ break;
+ case 7:
+ MIPS_FPU_EMU_INC_STATS(cmp_ule_d);
+ break;
+ }
+ } else {
+ switch (cmpop) {
+ case 1:
+ MIPS_FPU_EMU_INC_STATS(cmp_or_d);
+ break;
+ case 2:
+ MIPS_FPU_EMU_INC_STATS(cmp_une_d);
+ break;
+ case 3:
+ MIPS_FPU_EMU_INC_STATS(cmp_ne_d);
+ break;
+ }
+ }
+ } else {
+ if (!(MIPSInst_FUNC(ir) & PREDICATE_BIT)) {
+ switch (cmpop) {
+ case 0:
+ MIPS_FPU_EMU_INC_STATS(cmp_saf_d);
+ break;
+ case 1:
+ MIPS_FPU_EMU_INC_STATS(cmp_sun_d);
+ break;
+ case 2:
+ MIPS_FPU_EMU_INC_STATS(cmp_seq_d);
+ break;
+ case 3:
+ MIPS_FPU_EMU_INC_STATS(cmp_sueq_d);
+ break;
+ case 4:
+ MIPS_FPU_EMU_INC_STATS(cmp_slt_d);
+ break;
+ case 5:
+ MIPS_FPU_EMU_INC_STATS(cmp_sult_d);
+ break;
+ case 6:
+ MIPS_FPU_EMU_INC_STATS(cmp_sle_d);
+ break;
+ case 7:
+ MIPS_FPU_EMU_INC_STATS(cmp_sule_d);
+ break;
+ }
+ } else {
+ switch (cmpop) {
+ case 1:
+ MIPS_FPU_EMU_INC_STATS(cmp_sor_d);
+ break;
+ case 2:
+ MIPS_FPU_EMU_INC_STATS(cmp_sune_d);
+ break;
+ case 3:
+ MIPS_FPU_EMU_INC_STATS(cmp_sne_d);
+ break;
+ }
+ }
+ }
+
/* fmt is l_fmt for double precision so fix it */
rfmt = d_fmt;
/* default to false */
@@ -2462,13 +2718,14 @@ dcopuop:
break;
default:
/* Reserved R6 ops */
- pr_err("Reserved MIPS R6 CMP.condn.D operation\n");
return SIGILL;
}
}
break;
}
}
+ break;
+
default:
return SIGILL;
}
@@ -2524,8 +2781,37 @@ dcopuop:
return 0;
}
+/*
+ * Emulate FPU instructions.
+ *
+ * If we use FPU hardware, then we have been typically called to handle
+ * an unimplemented operation, such as where an operand is a NaN or
+ * denormalized. In that case exit the emulation loop after a single
+ * iteration so as to let hardware execute any subsequent instructions.
+ *
+ * If we have no FPU hardware or it has been disabled, then continue
+ * emulating floating-point instructions until one of these conditions
+ * has occurred:
+ *
+ * - a non-FPU instruction has been encountered,
+ *
+ * - an attempt to emulate has ended with a signal,
+ *
+ * - the ISA mode has been switched.
+ *
+ * We need to terminate the emulation loop if we got switched to the
+ * MIPS16 mode, whether supported or not, so that we do not attempt
+ * to emulate a MIPS16 instruction as a regular MIPS FPU instruction.
+ * Similarly if we got switched to the microMIPS mode and only the
+ * regular MIPS mode is supported, so that we do not attempt to emulate
+ * a microMIPS instruction as a regular MIPS FPU instruction. Or if
+ * we got switched to the regular MIPS mode and only the microMIPS mode
+ * is supported, so that we do not attempt to emulate a regular MIPS
+ * instruction that should cause an Address Error exception instead.
+ * For simplicity we always terminate upon an ISA mode switch.
+ */
int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
- int has_fpu, void *__user *fault_addr)
+ int has_fpu, void __user **fault_addr)
{
unsigned long oldepc, prevepc;
struct mm_decoded_insn dec_insn;
@@ -2609,6 +2895,15 @@ int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
break;
if (sig)
break;
+ /*
+ * We have to check for the ISA bit explicitly here,
+ * because `get_isa16_mode' may return 0 if support
+ * for code compression has been globally disabled,
+ * or otherwise we may produce the wrong signal or
+ * even proceed successfully where we must not.
+ */
+ if ((xcp->cp0_epc ^ prevepc) & 0x1)
+ break;
cond_resched();
} while (xcp->cp0_epc > prevepc);
diff --git a/arch/mips/math-emu/dp_fmax.c b/arch/mips/math-emu/dp_fmax.c
index fd71b8daaaf2..5bec64f2884e 100644
--- a/arch/mips/math-emu/dp_fmax.c
+++ b/arch/mips/math-emu/dp_fmax.c
@@ -47,14 +47,26 @@ union ieee754dp ieee754dp_fmax(union ieee754dp x, union ieee754dp y)
case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
return ieee754dp_nanxcpt(x);
- /* numbers are preferred to NaNs */
+ /*
+ * Quiet NaN handling
+ */
+
+ /*
+ * The case of both inputs quiet NaNs
+ */
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ return x;
+
+ /*
+ * The cases of exactly one input quiet NaN (numbers
+ * are here preferred as returned values to NaNs)
+ */
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
return x;
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -80,9 +92,7 @@ union ieee754dp ieee754dp_fmax(union ieee754dp x, union ieee754dp y)
return ys ? x : y;
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
- if (xs == ys)
- return x;
- return ieee754dp_zero(1);
+ return ieee754dp_zero(xs & ys);
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
DPDNORMX;
@@ -106,16 +116,32 @@ union ieee754dp ieee754dp_fmax(union ieee754dp x, union ieee754dp y)
else if (xs < ys)
return x;
- /* Compare exponent */
- if (xe > ye)
- return x;
- else if (xe < ye)
- return y;
+ /* Signs of inputs are equal, let's compare exponents */
+ if (xs == 0) {
+ /* Inputs are both positive */
+ if (xe > ye)
+ return x;
+ else if (xe < ye)
+ return y;
+ } else {
+ /* Inputs are both negative */
+ if (xe > ye)
+ return y;
+ else if (xe < ye)
+ return x;
+ }
- /* Compare mantissa */
+ /* Signs and exponents of inputs are equal, let's compare mantissas */
+ if (xs == 0) {
+ /* Inputs are both positive, with equal signs and exponents */
+ if (xm <= ym)
+ return y;
+ return x;
+ }
+ /* Inputs are both negative, with equal signs and exponents */
if (xm <= ym)
- return y;
- return x;
+ return x;
+ return y;
}
union ieee754dp ieee754dp_fmaxa(union ieee754dp x, union ieee754dp y)
@@ -147,14 +173,26 @@ union ieee754dp ieee754dp_fmaxa(union ieee754dp x, union ieee754dp y)
case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
return ieee754dp_nanxcpt(x);
- /* numbers are preferred to NaNs */
+ /*
+ * Quiet NaN handling
+ */
+
+ /*
+ * The case of both inputs quiet NaNs
+ */
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ return x;
+
+ /*
+ * The cases of exactly one input quiet NaN (numbers
+ * are here preferred as returned values to NaNs)
+ */
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
return x;
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -164,6 +202,9 @@ union ieee754dp ieee754dp_fmaxa(union ieee754dp x, union ieee754dp y)
/*
* Infinity and zero handling
*/
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+ return ieee754dp_inf(xs & ys);
+
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
@@ -171,7 +212,6 @@ union ieee754dp ieee754dp_fmaxa(union ieee754dp x, union ieee754dp y)
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
return x;
- case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
@@ -180,9 +220,7 @@ union ieee754dp ieee754dp_fmaxa(union ieee754dp x, union ieee754dp y)
return y;
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
- if (xs == ys)
- return x;
- return ieee754dp_zero(1);
+ return ieee754dp_zero(xs & ys);
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
DPDNORMX;
@@ -207,7 +245,11 @@ union ieee754dp ieee754dp_fmaxa(union ieee754dp x, union ieee754dp y)
return y;
/* Compare mantissa */
- if (xm <= ym)
+ if (xm < ym)
return y;
- return x;
+ else if (xm > ym)
+ return x;
+ else if (xs == 0)
+ return x;
+ return y;
}
diff --git a/arch/mips/math-emu/dp_fmin.c b/arch/mips/math-emu/dp_fmin.c
index c1072b0dfb95..a287b23818d8 100644
--- a/arch/mips/math-emu/dp_fmin.c
+++ b/arch/mips/math-emu/dp_fmin.c
@@ -47,14 +47,26 @@ union ieee754dp ieee754dp_fmin(union ieee754dp x, union ieee754dp y)
case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
return ieee754dp_nanxcpt(x);
- /* numbers are preferred to NaNs */
+ /*
+ * Quiet NaN handling
+ */
+
+ /*
+ * The case of both inputs quiet NaNs
+ */
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ return x;
+
+ /*
+ * The cases of exactly one input quiet NaN (numbers
+ * are here preferred as returned values to NaNs)
+ */
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
return x;
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -80,9 +92,7 @@ union ieee754dp ieee754dp_fmin(union ieee754dp x, union ieee754dp y)
return ys ? y : x;
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
- if (xs == ys)
- return x;
- return ieee754dp_zero(1);
+ return ieee754dp_zero(xs | ys);
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
DPDNORMX;
@@ -106,16 +116,32 @@ union ieee754dp ieee754dp_fmin(union ieee754dp x, union ieee754dp y)
else if (xs < ys)
return y;
- /* Compare exponent */
- if (xe > ye)
- return y;
- else if (xe < ye)
- return x;
+ /* Signs of inputs are the same, let's compare exponents */
+ if (xs == 0) {
+ /* Inputs are both positive */
+ if (xe > ye)
+ return y;
+ else if (xe < ye)
+ return x;
+ } else {
+ /* Inputs are both negative */
+ if (xe > ye)
+ return x;
+ else if (xe < ye)
+ return y;
+ }
- /* Compare mantissa */
+ /* Signs and exponents of inputs are equal, let's compare mantissas */
+ if (xs == 0) {
+ /* Inputs are both positive, with equal signs and exponents */
+ if (xm <= ym)
+ return x;
+ return y;
+ }
+ /* Inputs are both negative, with equal signs and exponents */
if (xm <= ym)
- return x;
- return y;
+ return y;
+ return x;
}
union ieee754dp ieee754dp_fmina(union ieee754dp x, union ieee754dp y)
@@ -147,14 +173,26 @@ union ieee754dp ieee754dp_fmina(union ieee754dp x, union ieee754dp y)
case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
return ieee754dp_nanxcpt(x);
- /* numbers are preferred to NaNs */
+ /*
+ * Quiet NaN handling
+ */
+
+ /*
+ * The case of both inputs quiet NaNs
+ */
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ return x;
+
+ /*
+ * The cases of exactly one input quiet NaN (numbers
+ * are here preferred as returned values to NaNs)
+ */
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
return x;
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -164,25 +202,25 @@ union ieee754dp ieee754dp_fmina(union ieee754dp x, union ieee754dp y)
/*
* Infinity and zero handling
*/
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+ return ieee754dp_inf(xs | ys);
+
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
- return x;
+ return y;
- case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
- return y;
+ return x;
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
- if (xs == ys)
- return x;
- return ieee754dp_zero(1);
+ return ieee754dp_zero(xs | ys);
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
DPDNORMX;
@@ -207,7 +245,11 @@ union ieee754dp ieee754dp_fmina(union ieee754dp x, union ieee754dp y)
return x;
/* Compare mantissa */
- if (xm <= ym)
+ if (xm < ym)
+ return x;
+ else if (xm > ym)
+ return y;
+ else if (xs == 1)
return x;
return y;
}
diff --git a/arch/mips/math-emu/dp_maddf.c b/arch/mips/math-emu/dp_maddf.c
index caa62f20a888..e0d9be5fbf4c 100644
--- a/arch/mips/math-emu/dp_maddf.c
+++ b/arch/mips/math-emu/dp_maddf.c
@@ -14,22 +14,45 @@
#include "ieee754dp.h"
-enum maddf_flags {
- maddf_negate_product = 1 << 0,
-};
+
+/* 128 bits shift right logical with rounding. */
+void srl128(u64 *hptr, u64 *lptr, int count)
+{
+ u64 low;
+
+ if (count >= 128) {
+ *lptr = *hptr != 0 || *lptr != 0;
+ *hptr = 0;
+ } else if (count >= 64) {
+ if (count == 64) {
+ *lptr = *hptr | (*lptr != 0);
+ } else {
+ low = *lptr;
+ *lptr = *hptr >> (count - 64);
+ *lptr |= (*hptr << (128 - count)) != 0 || low != 0;
+ }
+ *hptr = 0;
+ } else {
+ low = *lptr;
+ *lptr = low >> count | *hptr << (64 - count);
+ *lptr |= (low << (64 - count)) != 0;
+ *hptr = *hptr >> count;
+ }
+}
static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x,
union ieee754dp y, enum maddf_flags flags)
{
int re;
int rs;
- u64 rm;
unsigned lxm;
unsigned hxm;
unsigned lym;
unsigned hym;
u64 lrm;
u64 hrm;
+ u64 lzm;
+ u64 hzm;
u64 t;
u64 at;
int s;
@@ -48,52 +71,34 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x,
ieee754_clearcx();
- switch (zc) {
- case IEEE754_CLASS_SNAN:
- ieee754_setcx(IEEE754_INVALID_OPERATION);
+ /*
+ * Handle the cases when at least one of x, y or z is a NaN.
+ * Order of precedence is sNaN, qNaN and z, x, y.
+ */
+ if (zc == IEEE754_CLASS_SNAN)
return ieee754dp_nanxcpt(z);
- case IEEE754_CLASS_DNORM:
- DPDNORMZ;
- /* QNAN and ZERO cases are handled separately below */
- }
-
- switch (CLPAIR(xc, yc)) {
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
- case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
- case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
- case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
- case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
- return ieee754dp_nanxcpt(y);
-
- case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
- case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
- case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
- case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
- case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
- case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
+ if (xc == IEEE754_CLASS_SNAN)
return ieee754dp_nanxcpt(x);
-
- case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
- case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
- case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
- case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
+ if (yc == IEEE754_CLASS_SNAN)
+ return ieee754dp_nanxcpt(y);
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ if (xc == IEEE754_CLASS_QNAN)
+ return x;
+ if (yc == IEEE754_CLASS_QNAN)
return y;
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):
- return x;
+ if (zc == IEEE754_CLASS_DNORM)
+ DPDNORMZ;
+ /* ZERO z cases are handled separately below */
+ switch (CLPAIR(xc, yc)) {
/*
* Infinity handling
*/
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
- if (zc == IEEE754_CLASS_QNAN)
- return z;
ieee754_setcx(IEEE754_INVALID_OPERATION);
return ieee754dp_indef();
@@ -102,9 +107,27 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x,
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
- if (zc == IEEE754_CLASS_QNAN)
- return z;
- return ieee754dp_inf(xs ^ ys);
+ if ((zc == IEEE754_CLASS_INF) &&
+ ((!(flags & MADDF_NEGATE_PRODUCT) && (zs != (xs ^ ys))) ||
+ ((flags & MADDF_NEGATE_PRODUCT) && (zs == (xs ^ ys))))) {
+ /*
+ * Cases of addition of infinities with opposite signs
+ * or subtraction of infinities with same signs.
+ */
+ ieee754_setcx(IEEE754_INVALID_OPERATION);
+ return ieee754dp_indef();
+ }
+ /*
+ * z is here either not an infinity, or an infinity having the
+ * same sign as product (x*y) (in case of MADDF.D instruction)
+ * or product -(x*y) (in MSUBF.D case). The result must be an
+ * infinity, and its sign is determined only by the value of
+ * (flags & MADDF_NEGATE_PRODUCT) and the signs of x and y.
+ */
+ if (flags & MADDF_NEGATE_PRODUCT)
+ return ieee754dp_inf(1 ^ (xs ^ ys));
+ else
+ return ieee754dp_inf(xs ^ ys);
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
@@ -113,32 +136,42 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x,
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
if (zc == IEEE754_CLASS_INF)
return ieee754dp_inf(zs);
- /* Multiplication is 0 so just return z */
+ if (zc == IEEE754_CLASS_ZERO) {
+ /* Handle cases +0 + (-0) and similar ones. */
+ if ((!(flags & MADDF_NEGATE_PRODUCT)
+ && (zs == (xs ^ ys))) ||
+ ((flags & MADDF_NEGATE_PRODUCT)
+ && (zs != (xs ^ ys))))
+ /*
+ * Cases of addition of zeros of equal signs
+ * or subtraction of zeroes of opposite signs.
+ * The sign of the resulting zero is in any
+ * such case determined only by the sign of z.
+ */
+ return z;
+
+ return ieee754dp_zero(ieee754_csr.rm == FPU_CSR_RD);
+ }
+ /* x*y is here 0, and z is not 0, so just return z */
return z;
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
DPDNORMX;
case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
- if (zc == IEEE754_CLASS_QNAN)
- return z;
- else if (zc == IEEE754_CLASS_INF)
+ if (zc == IEEE754_CLASS_INF)
return ieee754dp_inf(zs);
DPDNORMY;
break;
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):
- if (zc == IEEE754_CLASS_QNAN)
- return z;
- else if (zc == IEEE754_CLASS_INF)
+ if (zc == IEEE754_CLASS_INF)
return ieee754dp_inf(zs);
DPDNORMX;
break;
case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_NORM):
- if (zc == IEEE754_CLASS_QNAN)
- return z;
- else if (zc == IEEE754_CLASS_INF)
+ if (zc == IEEE754_CLASS_INF)
return ieee754dp_inf(zs);
/* fall through to real computations */
}
@@ -157,7 +190,7 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x,
re = xe + ye;
rs = xs ^ ys;
- if (flags & maddf_negate_product)
+ if (flags & MADDF_NEGATE_PRODUCT)
rs ^= 1;
/* shunt to top of word */
@@ -165,7 +198,7 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x,
ym <<= 64 - (DP_FBITS + 1);
/*
- * Multiply 64 bits xm, ym to give high 64 bits rm with stickness.
+ * Multiply 64 bits xm and ym to give 128 bits result in hrm:lrm.
*/
/* 32 * 32 => 64 */
@@ -195,81 +228,110 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x,
hrm = hrm + (t >> 32);
- rm = hrm | (lrm != 0);
-
- /*
- * Sticky shift down to normal rounding precision.
- */
- if ((s64) rm < 0) {
- rm = (rm >> (64 - (DP_FBITS + 1 + 3))) |
- ((rm << (DP_FBITS + 1 + 3)) != 0);
+ /* Put explicit bit at bit 126 if necessary */
+ if ((int64_t)hrm < 0) {
+ lrm = (hrm << 63) | (lrm >> 1);
+ hrm = hrm >> 1;
re++;
- } else {
- rm = (rm >> (64 - (DP_FBITS + 1 + 3 + 1))) |
- ((rm << (DP_FBITS + 1 + 3 + 1)) != 0);
}
- assert(rm & (DP_HIDDEN_BIT << 3));
- if (zc == IEEE754_CLASS_ZERO)
- return ieee754dp_format(rs, re, rm);
+ assert(hrm & (1 << 62));
- /* And now the addition */
- assert(zm & DP_HIDDEN_BIT);
+ if (zc == IEEE754_CLASS_ZERO) {
+ /*
+ * Move explicit bit from bit 126 to bit 55 since the
+ * ieee754dp_format code expects the mantissa to be
+ * 56 bits wide (53 + 3 rounding bits).
+ */
+ srl128(&hrm, &lrm, (126 - 55));
+ return ieee754dp_format(rs, re, lrm);
+ }
- /*
- * Provide guard,round and stick bit space.
- */
- zm <<= 3;
+ /* Move explicit bit from bit 52 to bit 126 */
+ lzm = 0;
+ hzm = zm << 10;
+ assert(hzm & (1 << 62));
+ /* Make the exponents the same */
if (ze > re) {
/*
* Have to shift y fraction right to align.
*/
s = ze - re;
- rm = XDPSRS(rm, s);
+ srl128(&hrm, &lrm, s);
re += s;
} else if (re > ze) {
/*
* Have to shift x fraction right to align.
*/
s = re - ze;
- zm = XDPSRS(zm, s);
+ srl128(&hzm, &lzm, s);
ze += s;
}
assert(ze == re);
assert(ze <= DP_EMAX);
+ /* Do the addition */
if (zs == rs) {
/*
- * Generate 28 bit result of adding two 27 bit numbers
- * leaving result in xm, xs and xe.
+ * Generate 128 bit result by adding two 127 bit numbers
+ * leaving result in hzm:lzm, zs and ze.
*/
- zm = zm + rm;
-
- if (zm >> (DP_FBITS + 1 + 3)) { /* carry out */
- zm = XDPSRS1(zm);
+ hzm = hzm + hrm + (lzm > (lzm + lrm));
+ lzm = lzm + lrm;
+ if ((int64_t)hzm < 0) { /* carry out */
+ srl128(&hzm, &lzm, 1);
ze++;
}
} else {
- if (zm >= rm) {
- zm = zm - rm;
+ if (hzm > hrm || (hzm == hrm && lzm >= lrm)) {
+ hzm = hzm - hrm - (lzm < lrm);
+ lzm = lzm - lrm;
} else {
- zm = rm - zm;
+ hzm = hrm - hzm - (lrm < lzm);
+ lzm = lrm - lzm;
zs = rs;
}
- if (zm == 0)
+ if (lzm == 0 && hzm == 0)
return ieee754dp_zero(ieee754_csr.rm == FPU_CSR_RD);
/*
- * Normalize to rounding precision.
+ * Put explicit bit at bit 126 if necessary.
*/
- while ((zm >> (DP_FBITS + 3)) == 0) {
- zm <<= 1;
- ze--;
+ if (hzm == 0) {
+ /* left shift by 63 or 64 bits */
+ if ((int64_t)lzm < 0) {
+ /* MSB of lzm is the explicit bit */
+ hzm = lzm >> 1;
+ lzm = lzm << 63;
+ ze -= 63;
+ } else {
+ hzm = lzm;
+ lzm = 0;
+ ze -= 64;
+ }
+ }
+
+ t = 0;
+ while ((hzm >> (62 - t)) == 0)
+ t++;
+
+ assert(t <= 62);
+ if (t) {
+ hzm = hzm << t | lzm >> (64 - t);
+ lzm = lzm << t;
+ ze -= t;
}
}
- return ieee754dp_format(zs, ze, zm);
+ /*
+ * Move explicit bit from bit 126 to bit 55 since the
+ * ieee754dp_format code expects the mantissa to be
+ * 56 bits wide (53 + 3 rounding bits).
+ */
+ srl128(&hzm, &lzm, (126 - 55));
+
+ return ieee754dp_format(zs, ze, lzm);
}
union ieee754dp ieee754dp_maddf(union ieee754dp z, union ieee754dp x,
@@ -281,5 +343,5 @@ union ieee754dp ieee754dp_maddf(union ieee754dp z, union ieee754dp x,
union ieee754dp ieee754dp_msubf(union ieee754dp z, union ieee754dp x,
union ieee754dp y)
{
- return _dp_maddf(z, x, y, maddf_negate_product);
+ return _dp_maddf(z, x, y, MADDF_NEGATE_PRODUCT);
}
diff --git a/arch/mips/math-emu/dp_rint.c b/arch/mips/math-emu/dp_rint.c
new file mode 100644
index 000000000000..c3b9077ff357
--- /dev/null
+++ b/arch/mips/math-emu/dp_rint.c
@@ -0,0 +1,89 @@
+/* IEEE754 floating point arithmetic
+ * double precision: common utilities
+ */
+/*
+ * MIPS floating point support
+ * Copyright (C) 1994-2000 Algorithmics Ltd.
+ * Copyright (C) 2017 Imagination Technologies, Ltd.
+ * Author: Aleksandar Markovic <aleksandar.markovic@imgtec.com>
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.
+ */
+
+#include "ieee754dp.h"
+
+union ieee754dp ieee754dp_rint(union ieee754dp x)
+{
+ union ieee754dp ret;
+ u64 residue;
+ int sticky;
+ int round;
+ int odd;
+
+ COMPXDP;
+
+ ieee754_clearcx();
+
+ EXPLODEXDP;
+ FLUSHXDP;
+
+ if (xc == IEEE754_CLASS_SNAN)
+ return ieee754dp_nanxcpt(x);
+
+ if ((xc == IEEE754_CLASS_QNAN) ||
+ (xc == IEEE754_CLASS_INF) ||
+ (xc == IEEE754_CLASS_ZERO))
+ return x;
+
+ if (xe >= DP_FBITS)
+ return x;
+
+ if (xe < -1) {
+ residue = xm;
+ round = 0;
+ sticky = residue != 0;
+ xm = 0;
+ } else {
+ residue = xm << (64 - DP_FBITS + xe);
+ round = (residue >> 63) != 0;
+ sticky = (residue << 1) != 0;
+ xm >>= DP_FBITS - xe;
+ }
+
+ odd = (xm & 0x1) != 0x0;
+
+ switch (ieee754_csr.rm) {
+ case FPU_CSR_RN: /* toward nearest */
+ if (round && (sticky || odd))
+ xm++;
+ break;
+ case FPU_CSR_RZ: /* toward zero */
+ break;
+ case FPU_CSR_RU: /* toward +infinity */
+ if ((round || sticky) && !xs)
+ xm++;
+ break;
+ case FPU_CSR_RD: /* toward -infinity */
+ if ((round || sticky) && xs)
+ xm++;
+ break;
+ }
+
+ if (round || sticky)
+ ieee754_setcx(IEEE754_INEXACT);
+
+ ret = ieee754dp_flong(xm);
+ DPSIGN(ret) = xs;
+
+ return ret;
+}
diff --git a/arch/mips/math-emu/ieee754.h b/arch/mips/math-emu/ieee754.h
index d3be351aed15..92dc8fa565cb 100644
--- a/arch/mips/math-emu/ieee754.h
+++ b/arch/mips/math-emu/ieee754.h
@@ -67,6 +67,7 @@ union ieee754sp ieee754sp_div(union ieee754sp x, union ieee754sp y);
union ieee754sp ieee754sp_fint(int x);
union ieee754sp ieee754sp_flong(s64 x);
union ieee754sp ieee754sp_fdp(union ieee754dp x);
+union ieee754sp ieee754sp_rint(union ieee754sp x);
int ieee754sp_tint(union ieee754sp x);
s64 ieee754sp_tlong(union ieee754sp x);
@@ -101,6 +102,7 @@ union ieee754dp ieee754dp_neg(union ieee754dp x);
union ieee754dp ieee754dp_fint(int x);
union ieee754dp ieee754dp_flong(s64 x);
union ieee754dp ieee754dp_fsp(union ieee754sp x);
+union ieee754dp ieee754dp_rint(union ieee754dp x);
int ieee754dp_tint(union ieee754dp x);
s64 ieee754dp_tlong(union ieee754dp x);
diff --git a/arch/mips/math-emu/ieee754int.h b/arch/mips/math-emu/ieee754int.h
index 8bc2f6963324..dd2071f430e0 100644
--- a/arch/mips/math-emu/ieee754int.h
+++ b/arch/mips/math-emu/ieee754int.h
@@ -26,6 +26,10 @@
#define CLPAIR(x, y) ((x)*6+(y))
+enum maddf_flags {
+ MADDF_NEGATE_PRODUCT = 1 << 0,
+};
+
static inline void ieee754_clearcx(void)
{
ieee754_csr.cx = 0;
diff --git a/arch/mips/math-emu/ieee754sp.h b/arch/mips/math-emu/ieee754sp.h
index 8476067075fe..0f63e4202cff 100644
--- a/arch/mips/math-emu/ieee754sp.h
+++ b/arch/mips/math-emu/ieee754sp.h
@@ -45,6 +45,10 @@ static inline int ieee754sp_finite(union ieee754sp x)
return SPBEXP(x) != SP_EMAX + 1 + SP_EBIAS;
}
+/* 64 bit right shift with rounding */
+#define XSPSRS64(v, rs) \
+ (((rs) >= 64) ? ((v) != 0) : ((v) >> (rs)) | ((v) << (64-(rs)) != 0))
+
/* 3bit extended single precision sticky right shift */
#define XSPSRS(v, rs) \
((rs > (SP_FBITS+3))?1:((v) >> (rs)) | ((v) << (32-(rs)) != 0))
diff --git a/arch/mips/math-emu/me-debugfs.c b/arch/mips/math-emu/me-debugfs.c
index be650ed7db59..8c0ec154aecc 100644
--- a/arch/mips/math-emu/me-debugfs.c
+++ b/arch/mips/math-emu/me-debugfs.c
@@ -28,14 +28,190 @@ static int fpuemu_stat_get(void *data, u64 *val)
}
DEFINE_SIMPLE_ATTRIBUTE(fops_fpuemu_stat, fpuemu_stat_get, NULL, "%llu\n");
+/*
+ * Used to obtain names for a debugfs instruction counter, given field name
+ * in fpuemustats structure. For example, for input "cmp_sueq_d", the output
+ * would be "cmp.sueq.d". This is needed since dots are not allowed to be
+ * used in structure field names, and are, on the other hand, desired to be
+ * used in debugfs item names to be clearly associated to corresponding
+ * MIPS FPU instructions.
+ */
+static void adjust_instruction_counter_name(char *out_name, char *in_name)
+{
+ int i = 0;
+
+ strcpy(out_name, in_name);
+ while (in_name[i] != '\0') {
+ if (out_name[i] == '_')
+ out_name[i] = '.';
+ i++;
+ }
+}
+
+static int fpuemustats_clear_show(struct seq_file *s, void *unused)
+{
+ __this_cpu_write((fpuemustats).emulated, 0);
+ __this_cpu_write((fpuemustats).loads, 0);
+ __this_cpu_write((fpuemustats).stores, 0);
+ __this_cpu_write((fpuemustats).branches, 0);
+ __this_cpu_write((fpuemustats).cp1ops, 0);
+ __this_cpu_write((fpuemustats).cp1xops, 0);
+ __this_cpu_write((fpuemustats).errors, 0);
+ __this_cpu_write((fpuemustats).ieee754_inexact, 0);
+ __this_cpu_write((fpuemustats).ieee754_underflow, 0);
+ __this_cpu_write((fpuemustats).ieee754_overflow, 0);
+ __this_cpu_write((fpuemustats).ieee754_zerodiv, 0);
+ __this_cpu_write((fpuemustats).ieee754_invalidop, 0);
+ __this_cpu_write((fpuemustats).ds_emul, 0);
+
+ __this_cpu_write((fpuemustats).abs_s, 0);
+ __this_cpu_write((fpuemustats).abs_d, 0);
+ __this_cpu_write((fpuemustats).add_s, 0);
+ __this_cpu_write((fpuemustats).add_d, 0);
+ __this_cpu_write((fpuemustats).bc1eqz, 0);
+ __this_cpu_write((fpuemustats).bc1nez, 0);
+ __this_cpu_write((fpuemustats).ceil_w_s, 0);
+ __this_cpu_write((fpuemustats).ceil_w_d, 0);
+ __this_cpu_write((fpuemustats).ceil_l_s, 0);
+ __this_cpu_write((fpuemustats).ceil_l_d, 0);
+ __this_cpu_write((fpuemustats).class_s, 0);
+ __this_cpu_write((fpuemustats).class_d, 0);
+ __this_cpu_write((fpuemustats).cmp_af_s, 0);
+ __this_cpu_write((fpuemustats).cmp_af_d, 0);
+ __this_cpu_write((fpuemustats).cmp_eq_s, 0);
+ __this_cpu_write((fpuemustats).cmp_eq_d, 0);
+ __this_cpu_write((fpuemustats).cmp_le_s, 0);
+ __this_cpu_write((fpuemustats).cmp_le_d, 0);
+ __this_cpu_write((fpuemustats).cmp_lt_s, 0);
+ __this_cpu_write((fpuemustats).cmp_lt_d, 0);
+ __this_cpu_write((fpuemustats).cmp_ne_s, 0);
+ __this_cpu_write((fpuemustats).cmp_ne_d, 0);
+ __this_cpu_write((fpuemustats).cmp_or_s, 0);
+ __this_cpu_write((fpuemustats).cmp_or_d, 0);
+ __this_cpu_write((fpuemustats).cmp_ueq_s, 0);
+ __this_cpu_write((fpuemustats).cmp_ueq_d, 0);
+ __this_cpu_write((fpuemustats).cmp_ule_s, 0);
+ __this_cpu_write((fpuemustats).cmp_ule_d, 0);
+ __this_cpu_write((fpuemustats).cmp_ult_s, 0);
+ __this_cpu_write((fpuemustats).cmp_ult_d, 0);
+ __this_cpu_write((fpuemustats).cmp_un_s, 0);
+ __this_cpu_write((fpuemustats).cmp_un_d, 0);
+ __this_cpu_write((fpuemustats).cmp_une_s, 0);
+ __this_cpu_write((fpuemustats).cmp_une_d, 0);
+ __this_cpu_write((fpuemustats).cmp_saf_s, 0);
+ __this_cpu_write((fpuemustats).cmp_saf_d, 0);
+ __this_cpu_write((fpuemustats).cmp_seq_s, 0);
+ __this_cpu_write((fpuemustats).cmp_seq_d, 0);
+ __this_cpu_write((fpuemustats).cmp_sle_s, 0);
+ __this_cpu_write((fpuemustats).cmp_sle_d, 0);
+ __this_cpu_write((fpuemustats).cmp_slt_s, 0);
+ __this_cpu_write((fpuemustats).cmp_slt_d, 0);
+ __this_cpu_write((fpuemustats).cmp_sne_s, 0);
+ __this_cpu_write((fpuemustats).cmp_sne_d, 0);
+ __this_cpu_write((fpuemustats).cmp_sor_s, 0);
+ __this_cpu_write((fpuemustats).cmp_sor_d, 0);
+ __this_cpu_write((fpuemustats).cmp_sueq_s, 0);
+ __this_cpu_write((fpuemustats).cmp_sueq_d, 0);
+ __this_cpu_write((fpuemustats).cmp_sule_s, 0);
+ __this_cpu_write((fpuemustats).cmp_sule_d, 0);
+ __this_cpu_write((fpuemustats).cmp_sult_s, 0);
+ __this_cpu_write((fpuemustats).cmp_sult_d, 0);
+ __this_cpu_write((fpuemustats).cmp_sun_s, 0);
+ __this_cpu_write((fpuemustats).cmp_sun_d, 0);
+ __this_cpu_write((fpuemustats).cmp_sune_s, 0);
+ __this_cpu_write((fpuemustats).cmp_sune_d, 0);
+ __this_cpu_write((fpuemustats).cvt_d_l, 0);
+ __this_cpu_write((fpuemustats).cvt_d_s, 0);
+ __this_cpu_write((fpuemustats).cvt_d_w, 0);
+ __this_cpu_write((fpuemustats).cvt_l_s, 0);
+ __this_cpu_write((fpuemustats).cvt_l_d, 0);
+ __this_cpu_write((fpuemustats).cvt_s_d, 0);
+ __this_cpu_write((fpuemustats).cvt_s_l, 0);
+ __this_cpu_write((fpuemustats).cvt_s_w, 0);
+ __this_cpu_write((fpuemustats).cvt_w_s, 0);
+ __this_cpu_write((fpuemustats).cvt_w_d, 0);
+ __this_cpu_write((fpuemustats).div_s, 0);
+ __this_cpu_write((fpuemustats).div_d, 0);
+ __this_cpu_write((fpuemustats).floor_w_s, 0);
+ __this_cpu_write((fpuemustats).floor_w_d, 0);
+ __this_cpu_write((fpuemustats).floor_l_s, 0);
+ __this_cpu_write((fpuemustats).floor_l_d, 0);
+ __this_cpu_write((fpuemustats).maddf_s, 0);
+ __this_cpu_write((fpuemustats).maddf_d, 0);
+ __this_cpu_write((fpuemustats).max_s, 0);
+ __this_cpu_write((fpuemustats).max_d, 0);
+ __this_cpu_write((fpuemustats).maxa_s, 0);
+ __this_cpu_write((fpuemustats).maxa_d, 0);
+ __this_cpu_write((fpuemustats).min_s, 0);
+ __this_cpu_write((fpuemustats).min_d, 0);
+ __this_cpu_write((fpuemustats).mina_s, 0);
+ __this_cpu_write((fpuemustats).mina_d, 0);
+ __this_cpu_write((fpuemustats).mov_s, 0);
+ __this_cpu_write((fpuemustats).mov_d, 0);
+ __this_cpu_write((fpuemustats).msubf_s, 0);
+ __this_cpu_write((fpuemustats).msubf_d, 0);
+ __this_cpu_write((fpuemustats).mul_s, 0);
+ __this_cpu_write((fpuemustats).mul_d, 0);
+ __this_cpu_write((fpuemustats).neg_s, 0);
+ __this_cpu_write((fpuemustats).neg_d, 0);
+ __this_cpu_write((fpuemustats).recip_s, 0);
+ __this_cpu_write((fpuemustats).recip_d, 0);
+ __this_cpu_write((fpuemustats).rint_s, 0);
+ __this_cpu_write((fpuemustats).rint_d, 0);
+ __this_cpu_write((fpuemustats).round_w_s, 0);
+ __this_cpu_write((fpuemustats).round_w_d, 0);
+ __this_cpu_write((fpuemustats).round_l_s, 0);
+ __this_cpu_write((fpuemustats).round_l_d, 0);
+ __this_cpu_write((fpuemustats).rsqrt_s, 0);
+ __this_cpu_write((fpuemustats).rsqrt_d, 0);
+ __this_cpu_write((fpuemustats).sel_s, 0);
+ __this_cpu_write((fpuemustats).sel_d, 0);
+ __this_cpu_write((fpuemustats).seleqz_s, 0);
+ __this_cpu_write((fpuemustats).seleqz_d, 0);
+ __this_cpu_write((fpuemustats).selnez_s, 0);
+ __this_cpu_write((fpuemustats).selnez_d, 0);
+ __this_cpu_write((fpuemustats).sqrt_s, 0);
+ __this_cpu_write((fpuemustats).sqrt_d, 0);
+ __this_cpu_write((fpuemustats).sub_s, 0);
+ __this_cpu_write((fpuemustats).sub_d, 0);
+ __this_cpu_write((fpuemustats).trunc_w_s, 0);
+ __this_cpu_write((fpuemustats).trunc_w_d, 0);
+ __this_cpu_write((fpuemustats).trunc_l_s, 0);
+ __this_cpu_write((fpuemustats).trunc_l_d, 0);
+
+ return 0;
+}
+
+static int fpuemustats_clear_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, fpuemustats_clear_show, inode->i_private);
+}
+
+static const struct file_operations fpuemustats_clear_fops = {
+ .open = fpuemustats_clear_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
static int __init debugfs_fpuemu(void)
{
- struct dentry *d, *dir;
+ struct dentry *fpuemu_debugfs_base_dir;
+ struct dentry *fpuemu_debugfs_inst_dir;
+ struct dentry *d, *reset_file;
if (!mips_debugfs_dir)
return -ENODEV;
- dir = debugfs_create_dir("fpuemustats", mips_debugfs_dir);
- if (!dir)
+
+ fpuemu_debugfs_base_dir = debugfs_create_dir("fpuemustats",
+ mips_debugfs_dir);
+ if (!fpuemu_debugfs_base_dir)
+ return -ENOMEM;
+
+ reset_file = debugfs_create_file("fpuemustats_clear", 0444,
+ mips_debugfs_dir, NULL,
+ &fpuemustats_clear_fops);
+ if (!reset_file)
return -ENOMEM;
#define FPU_EMU_STAT_OFFSET(m) \
@@ -43,7 +219,7 @@ static int __init debugfs_fpuemu(void)
#define FPU_STAT_CREATE(m) \
do { \
- d = debugfs_create_file(#m , S_IRUGO, dir, \
+ d = debugfs_create_file(#m, 0444, fpuemu_debugfs_base_dir, \
(void *)FPU_EMU_STAT_OFFSET(m), \
&fops_fpuemu_stat); \
if (!d) \
@@ -53,6 +229,7 @@ do { \
FPU_STAT_CREATE(emulated);
FPU_STAT_CREATE(loads);
FPU_STAT_CREATE(stores);
+ FPU_STAT_CREATE(branches);
FPU_STAT_CREATE(cp1ops);
FPU_STAT_CREATE(cp1xops);
FPU_STAT_CREATE(errors);
@@ -63,6 +240,139 @@ do { \
FPU_STAT_CREATE(ieee754_invalidop);
FPU_STAT_CREATE(ds_emul);
+ fpuemu_debugfs_inst_dir = debugfs_create_dir("instructions",
+ fpuemu_debugfs_base_dir);
+ if (!fpuemu_debugfs_inst_dir)
+ return -ENOMEM;
+
+#define FPU_STAT_CREATE_EX(m) \
+do { \
+ char name[32]; \
+ \
+ adjust_instruction_counter_name(name, #m); \
+ \
+ d = debugfs_create_file(name, 0444, fpuemu_debugfs_inst_dir, \
+ (void *)FPU_EMU_STAT_OFFSET(m), \
+ &fops_fpuemu_stat); \
+ if (!d) \
+ return -ENOMEM; \
+} while (0)
+
+ FPU_STAT_CREATE_EX(abs_s);
+ FPU_STAT_CREATE_EX(abs_d);
+ FPU_STAT_CREATE_EX(add_s);
+ FPU_STAT_CREATE_EX(add_d);
+ FPU_STAT_CREATE_EX(bc1eqz);
+ FPU_STAT_CREATE_EX(bc1nez);
+ FPU_STAT_CREATE_EX(ceil_w_s);
+ FPU_STAT_CREATE_EX(ceil_w_d);
+ FPU_STAT_CREATE_EX(ceil_l_s);
+ FPU_STAT_CREATE_EX(ceil_l_d);
+ FPU_STAT_CREATE_EX(class_s);
+ FPU_STAT_CREATE_EX(class_d);
+ FPU_STAT_CREATE_EX(cmp_af_s);
+ FPU_STAT_CREATE_EX(cmp_af_d);
+ FPU_STAT_CREATE_EX(cmp_eq_s);
+ FPU_STAT_CREATE_EX(cmp_eq_d);
+ FPU_STAT_CREATE_EX(cmp_le_s);
+ FPU_STAT_CREATE_EX(cmp_le_d);
+ FPU_STAT_CREATE_EX(cmp_lt_s);
+ FPU_STAT_CREATE_EX(cmp_lt_d);
+ FPU_STAT_CREATE_EX(cmp_ne_s);
+ FPU_STAT_CREATE_EX(cmp_ne_d);
+ FPU_STAT_CREATE_EX(cmp_or_s);
+ FPU_STAT_CREATE_EX(cmp_or_d);
+ FPU_STAT_CREATE_EX(cmp_ueq_s);
+ FPU_STAT_CREATE_EX(cmp_ueq_d);
+ FPU_STAT_CREATE_EX(cmp_ule_s);
+ FPU_STAT_CREATE_EX(cmp_ule_d);
+ FPU_STAT_CREATE_EX(cmp_ult_s);
+ FPU_STAT_CREATE_EX(cmp_ult_d);
+ FPU_STAT_CREATE_EX(cmp_un_s);
+ FPU_STAT_CREATE_EX(cmp_un_d);
+ FPU_STAT_CREATE_EX(cmp_une_s);
+ FPU_STAT_CREATE_EX(cmp_une_d);
+ FPU_STAT_CREATE_EX(cmp_saf_s);
+ FPU_STAT_CREATE_EX(cmp_saf_d);
+ FPU_STAT_CREATE_EX(cmp_seq_s);
+ FPU_STAT_CREATE_EX(cmp_seq_d);
+ FPU_STAT_CREATE_EX(cmp_sle_s);
+ FPU_STAT_CREATE_EX(cmp_sle_d);
+ FPU_STAT_CREATE_EX(cmp_slt_s);
+ FPU_STAT_CREATE_EX(cmp_slt_d);
+ FPU_STAT_CREATE_EX(cmp_sne_s);
+ FPU_STAT_CREATE_EX(cmp_sne_d);
+ FPU_STAT_CREATE_EX(cmp_sor_s);
+ FPU_STAT_CREATE_EX(cmp_sor_d);
+ FPU_STAT_CREATE_EX(cmp_sueq_s);
+ FPU_STAT_CREATE_EX(cmp_sueq_d);
+ FPU_STAT_CREATE_EX(cmp_sule_s);
+ FPU_STAT_CREATE_EX(cmp_sule_d);
+ FPU_STAT_CREATE_EX(cmp_sult_s);
+ FPU_STAT_CREATE_EX(cmp_sult_d);
+ FPU_STAT_CREATE_EX(cmp_sun_s);
+ FPU_STAT_CREATE_EX(cmp_sun_d);
+ FPU_STAT_CREATE_EX(cmp_sune_s);
+ FPU_STAT_CREATE_EX(cmp_sune_d);
+ FPU_STAT_CREATE_EX(cvt_d_l);
+ FPU_STAT_CREATE_EX(cvt_d_s);
+ FPU_STAT_CREATE_EX(cvt_d_w);
+ FPU_STAT_CREATE_EX(cvt_l_s);
+ FPU_STAT_CREATE_EX(cvt_l_d);
+ FPU_STAT_CREATE_EX(cvt_s_d);
+ FPU_STAT_CREATE_EX(cvt_s_l);
+ FPU_STAT_CREATE_EX(cvt_s_w);
+ FPU_STAT_CREATE_EX(cvt_w_s);
+ FPU_STAT_CREATE_EX(cvt_w_d);
+ FPU_STAT_CREATE_EX(div_s);
+ FPU_STAT_CREATE_EX(div_d);
+ FPU_STAT_CREATE_EX(floor_w_s);
+ FPU_STAT_CREATE_EX(floor_w_d);
+ FPU_STAT_CREATE_EX(floor_l_s);
+ FPU_STAT_CREATE_EX(floor_l_d);
+ FPU_STAT_CREATE_EX(maddf_s);
+ FPU_STAT_CREATE_EX(maddf_d);
+ FPU_STAT_CREATE_EX(max_s);
+ FPU_STAT_CREATE_EX(max_d);
+ FPU_STAT_CREATE_EX(maxa_s);
+ FPU_STAT_CREATE_EX(maxa_d);
+ FPU_STAT_CREATE_EX(min_s);
+ FPU_STAT_CREATE_EX(min_d);
+ FPU_STAT_CREATE_EX(mina_s);
+ FPU_STAT_CREATE_EX(mina_d);
+ FPU_STAT_CREATE_EX(mov_s);
+ FPU_STAT_CREATE_EX(mov_d);
+ FPU_STAT_CREATE_EX(msubf_s);
+ FPU_STAT_CREATE_EX(msubf_d);
+ FPU_STAT_CREATE_EX(mul_s);
+ FPU_STAT_CREATE_EX(mul_d);
+ FPU_STAT_CREATE_EX(neg_s);
+ FPU_STAT_CREATE_EX(neg_d);
+ FPU_STAT_CREATE_EX(recip_s);
+ FPU_STAT_CREATE_EX(recip_d);
+ FPU_STAT_CREATE_EX(rint_s);
+ FPU_STAT_CREATE_EX(rint_d);
+ FPU_STAT_CREATE_EX(round_w_s);
+ FPU_STAT_CREATE_EX(round_w_d);
+ FPU_STAT_CREATE_EX(round_l_s);
+ FPU_STAT_CREATE_EX(round_l_d);
+ FPU_STAT_CREATE_EX(rsqrt_s);
+ FPU_STAT_CREATE_EX(rsqrt_d);
+ FPU_STAT_CREATE_EX(sel_s);
+ FPU_STAT_CREATE_EX(sel_d);
+ FPU_STAT_CREATE_EX(seleqz_s);
+ FPU_STAT_CREATE_EX(seleqz_d);
+ FPU_STAT_CREATE_EX(selnez_s);
+ FPU_STAT_CREATE_EX(selnez_d);
+ FPU_STAT_CREATE_EX(sqrt_s);
+ FPU_STAT_CREATE_EX(sqrt_d);
+ FPU_STAT_CREATE_EX(sub_s);
+ FPU_STAT_CREATE_EX(sub_d);
+ FPU_STAT_CREATE_EX(trunc_w_s);
+ FPU_STAT_CREATE_EX(trunc_w_d);
+ FPU_STAT_CREATE_EX(trunc_l_s);
+ FPU_STAT_CREATE_EX(trunc_l_d);
+
return 0;
}
arch_initcall(debugfs_fpuemu);
diff --git a/arch/mips/math-emu/sp_fmax.c b/arch/mips/math-emu/sp_fmax.c
index 4d000844e48e..74a5a00d2f22 100644
--- a/arch/mips/math-emu/sp_fmax.c
+++ b/arch/mips/math-emu/sp_fmax.c
@@ -47,14 +47,26 @@ union ieee754sp ieee754sp_fmax(union ieee754sp x, union ieee754sp y)
case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
return ieee754sp_nanxcpt(x);
- /* numbers are preferred to NaNs */
+ /*
+ * Quiet NaN handling
+ */
+
+ /*
+ * The case of both inputs quiet NaNs
+ */
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ return x;
+
+ /*
+ * The cases of exactly one input quiet NaN (numbers
+ * are here preferred as returned values to NaNs)
+ */
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
return x;
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -80,9 +92,7 @@ union ieee754sp ieee754sp_fmax(union ieee754sp x, union ieee754sp y)
return ys ? x : y;
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
- if (xs == ys)
- return x;
- return ieee754sp_zero(1);
+ return ieee754sp_zero(xs & ys);
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
SPDNORMX;
@@ -106,16 +116,32 @@ union ieee754sp ieee754sp_fmax(union ieee754sp x, union ieee754sp y)
else if (xs < ys)
return x;
- /* Compare exponent */
- if (xe > ye)
- return x;
- else if (xe < ye)
- return y;
+ /* Signs of inputs are equal, let's compare exponents */
+ if (xs == 0) {
+ /* Inputs are both positive */
+ if (xe > ye)
+ return x;
+ else if (xe < ye)
+ return y;
+ } else {
+ /* Inputs are both negative */
+ if (xe > ye)
+ return y;
+ else if (xe < ye)
+ return x;
+ }
- /* Compare mantissa */
+ /* Signs and exponents of inputs are equal, let's compare mantissas */
+ if (xs == 0) {
+ /* Inputs are both positive, with equal signs and exponents */
+ if (xm <= ym)
+ return y;
+ return x;
+ }
+ /* Inputs are both negative, with equal signs and exponents */
if (xm <= ym)
- return y;
- return x;
+ return x;
+ return y;
}
union ieee754sp ieee754sp_fmaxa(union ieee754sp x, union ieee754sp y)
@@ -147,14 +173,26 @@ union ieee754sp ieee754sp_fmaxa(union ieee754sp x, union ieee754sp y)
case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
return ieee754sp_nanxcpt(x);
- /* numbers are preferred to NaNs */
+ /*
+ * Quiet NaN handling
+ */
+
+ /*
+ * The case of both inputs quiet NaNs
+ */
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ return x;
+
+ /*
+ * The cases of exactly one input quiet NaN (numbers
+ * are here preferred as returned values to NaNs)
+ */
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
return x;
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -164,6 +202,9 @@ union ieee754sp ieee754sp_fmaxa(union ieee754sp x, union ieee754sp y)
/*
* Infinity and zero handling
*/
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+ return ieee754sp_inf(xs & ys);
+
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
@@ -171,7 +212,6 @@ union ieee754sp ieee754sp_fmaxa(union ieee754sp x, union ieee754sp y)
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
return x;
- case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
@@ -180,9 +220,7 @@ union ieee754sp ieee754sp_fmaxa(union ieee754sp x, union ieee754sp y)
return y;
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
- if (xs == ys)
- return x;
- return ieee754sp_zero(1);
+ return ieee754sp_zero(xs & ys);
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
SPDNORMX;
@@ -207,7 +245,11 @@ union ieee754sp ieee754sp_fmaxa(union ieee754sp x, union ieee754sp y)
return y;
/* Compare mantissa */
- if (xm <= ym)
+ if (xm < ym)
return y;
- return x;
+ else if (xm > ym)
+ return x;
+ else if (xs == 0)
+ return x;
+ return y;
}
diff --git a/arch/mips/math-emu/sp_fmin.c b/arch/mips/math-emu/sp_fmin.c
index 4eb1bb9e9dec..c51385f46b09 100644
--- a/arch/mips/math-emu/sp_fmin.c
+++ b/arch/mips/math-emu/sp_fmin.c
@@ -47,14 +47,26 @@ union ieee754sp ieee754sp_fmin(union ieee754sp x, union ieee754sp y)
case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
return ieee754sp_nanxcpt(x);
- /* numbers are preferred to NaNs */
+ /*
+ * Quiet NaN handling
+ */
+
+ /*
+ * The case of both inputs quiet NaNs
+ */
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ return x;
+
+ /*
+ * The cases of exactly one input quiet NaN (numbers
+ * are here preferred as returned values to NaNs)
+ */
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
return x;
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -80,9 +92,7 @@ union ieee754sp ieee754sp_fmin(union ieee754sp x, union ieee754sp y)
return ys ? y : x;
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
- if (xs == ys)
- return x;
- return ieee754sp_zero(1);
+ return ieee754sp_zero(xs | ys);
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
SPDNORMX;
@@ -106,16 +116,32 @@ union ieee754sp ieee754sp_fmin(union ieee754sp x, union ieee754sp y)
else if (xs < ys)
return y;
- /* Compare exponent */
- if (xe > ye)
- return y;
- else if (xe < ye)
- return x;
+ /* Signs of inputs are the same, let's compare exponents */
+ if (xs == 0) {
+ /* Inputs are both positive */
+ if (xe > ye)
+ return y;
+ else if (xe < ye)
+ return x;
+ } else {
+ /* Inputs are both negative */
+ if (xe > ye)
+ return x;
+ else if (xe < ye)
+ return y;
+ }
- /* Compare mantissa */
+ /* Signs and exponents of inputs are equal, let's compare mantissas */
+ if (xs == 0) {
+ /* Inputs are both positive, with equal signs and exponents */
+ if (xm <= ym)
+ return x;
+ return y;
+ }
+ /* Inputs are both negative, with equal signs and exponents */
if (xm <= ym)
- return x;
- return y;
+ return y;
+ return x;
}
union ieee754sp ieee754sp_fmina(union ieee754sp x, union ieee754sp y)
@@ -147,14 +173,26 @@ union ieee754sp ieee754sp_fmina(union ieee754sp x, union ieee754sp y)
case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
return ieee754sp_nanxcpt(x);
- /* numbers are preferred to NaNs */
+ /*
+ * Quiet NaN handling
+ */
+
+ /*
+ * The case of both inputs quiet NaNs
+ */
+ case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+ return x;
+
+ /*
+ * The cases of exactly one input quiet NaN (numbers
+ * are here preferred as returned values to NaNs)
+ */
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
return x;
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -164,25 +202,25 @@ union ieee754sp ieee754sp_fmina(union ieee754sp x, union ieee754sp y)
/*
* Infinity and zero handling
*/
+ case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+ return ieee754sp_inf(xs | ys);
+
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
- return x;
+ return y;
- case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
- return y;
+ return x;
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
- if (xs == ys)
- return x;
- return ieee754sp_zero(1);
+ return ieee754sp_zero(xs | ys);
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
SPDNORMX;
@@ -207,7 +245,11 @@ union ieee754sp ieee754sp_fmina(union ieee754sp x, union ieee754sp y)
return x;
/* Compare mantissa */
- if (xm <= ym)
+ if (xm < ym)
+ return x;
+ else if (xm > ym)
+ return y;
+ else if (xs == 1)
return x;
return y;
}
diff --git a/arch/mips/math-emu/sp_maddf.c b/arch/mips/math-emu/sp_maddf.c
index c91d5e5d9b5f..7195fe785d81 100644
--- a/arch/mips/math-emu/sp_maddf.c
+++ b/arch/mips/math-emu/sp_maddf.c
@@ -14,9 +14,6 @@
#include "ieee754sp.h"
-enum maddf_flags {
- maddf_negate_product = 1 << 0,
-};
static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x,
union ieee754sp y, enum maddf_flags flags)
@@ -24,14 +21,8 @@ static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x,
int re;
int rs;
unsigned rm;
- unsigned short lxm;
- unsigned short hxm;
- unsigned short lym;
- unsigned short hym;
- unsigned lrm;
- unsigned hrm;
- unsigned t;
- unsigned at;
+ uint64_t rm64;
+ uint64_t zm64;
int s;
COMPXSP;
@@ -48,51 +39,35 @@ static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x,
ieee754_clearcx();
- switch (zc) {
- case IEEE754_CLASS_SNAN:
- ieee754_setcx(IEEE754_INVALID_OPERATION);
+ /*
+ * Handle the cases when at least one of x, y or z is a NaN.
+ * Order of precedence is sNaN, qNaN and z, x, y.
+ */
+ if (zc == IEEE754_CLASS_SNAN)
return ieee754sp_nanxcpt(z);
- case IEEE754_CLASS_DNORM:
- SPDNORMZ;
- /* QNAN and ZERO cases are handled separately below */
- }
-
- switch (CLPAIR(xc, yc)) {
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
- case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
- case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
- case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
- case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
+ if (xc == IEEE754_CLASS_SNAN)
+ return ieee754sp_nanxcpt(x);
+ if (yc == IEEE754_CLASS_SNAN)
return ieee754sp_nanxcpt(y);
+ if (zc == IEEE754_CLASS_QNAN)
+ return z;
+ if (xc == IEEE754_CLASS_QNAN)
+ return x;
+ if (yc == IEEE754_CLASS_QNAN)
+ return y;
- case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
- case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
- case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
- case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
- case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
- case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
- return ieee754sp_nanxcpt(x);
+ if (zc == IEEE754_CLASS_DNORM)
+ SPDNORMZ;
+ /* ZERO z cases are handled separately below */
- case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
- case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
- case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
- case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
- return y;
+ switch (CLPAIR(xc, yc)) {
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
- case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):
- return x;
/*
* Infinity handling
*/
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
- if (zc == IEEE754_CLASS_QNAN)
- return z;
ieee754_setcx(IEEE754_INVALID_OPERATION);
return ieee754sp_indef();
@@ -101,9 +76,27 @@ static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x,
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
- if (zc == IEEE754_CLASS_QNAN)
- return z;
- return ieee754sp_inf(xs ^ ys);
+ if ((zc == IEEE754_CLASS_INF) &&
+ ((!(flags & MADDF_NEGATE_PRODUCT) && (zs != (xs ^ ys))) ||
+ ((flags & MADDF_NEGATE_PRODUCT) && (zs == (xs ^ ys))))) {
+ /*
+ * Cases of addition of infinities with opposite signs
+ * or subtraction of infinities with same signs.
+ */
+ ieee754_setcx(IEEE754_INVALID_OPERATION);
+ return ieee754sp_indef();
+ }
+ /*
+ * z is here either not an infinity, or an infinity having the
+ * same sign as product (x*y) (in case of MADDF.D instruction)
+ * or product -(x*y) (in MSUBF.D case). The result must be an
+ * infinity, and its sign is determined only by the value of
+ * (flags & MADDF_NEGATE_PRODUCT) and the signs of x and y.
+ */
+ if (flags & MADDF_NEGATE_PRODUCT)
+ return ieee754sp_inf(1 ^ (xs ^ ys));
+ else
+ return ieee754sp_inf(xs ^ ys);
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
@@ -112,32 +105,42 @@ static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x,
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
if (zc == IEEE754_CLASS_INF)
return ieee754sp_inf(zs);
- /* Multiplication is 0 so just return z */
+ if (zc == IEEE754_CLASS_ZERO) {
+ /* Handle cases +0 + (-0) and similar ones. */
+ if ((!(flags & MADDF_NEGATE_PRODUCT)
+ && (zs == (xs ^ ys))) ||
+ ((flags & MADDF_NEGATE_PRODUCT)
+ && (zs != (xs ^ ys))))
+ /*
+ * Cases of addition of zeros of equal signs
+ * or subtraction of zeroes of opposite signs.
+ * The sign of the resulting zero is in any
+ * such case determined only by the sign of z.
+ */
+ return z;
+
+ return ieee754sp_zero(ieee754_csr.rm == FPU_CSR_RD);
+ }
+ /* x*y is here 0, and z is not 0, so just return z */
return z;
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
SPDNORMX;
case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
- if (zc == IEEE754_CLASS_QNAN)
- return z;
- else if (zc == IEEE754_CLASS_INF)
+ if (zc == IEEE754_CLASS_INF)
return ieee754sp_inf(zs);
SPDNORMY;
break;
case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):
- if (zc == IEEE754_CLASS_QNAN)
- return z;
- else if (zc == IEEE754_CLASS_INF)
+ if (zc == IEEE754_CLASS_INF)
return ieee754sp_inf(zs);
SPDNORMX;
break;
case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_NORM):
- if (zc == IEEE754_CLASS_QNAN)
- return z;
- else if (zc == IEEE754_CLASS_INF)
+ if (zc == IEEE754_CLASS_INF)
return ieee754sp_inf(zs);
/* fall through to real computations */
}
@@ -158,111 +161,93 @@ static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x,
re = xe + ye;
rs = xs ^ ys;
- if (flags & maddf_negate_product)
+ if (flags & MADDF_NEGATE_PRODUCT)
rs ^= 1;
- /* shunt to top of word */
- xm <<= 32 - (SP_FBITS + 1);
- ym <<= 32 - (SP_FBITS + 1);
-
- /*
- * Multiply 32 bits xm, ym to give high 32 bits rm with stickness.
- */
- lxm = xm & 0xffff;
- hxm = xm >> 16;
- lym = ym & 0xffff;
- hym = ym >> 16;
-
- lrm = lxm * lym; /* 16 * 16 => 32 */
- hrm = hxm * hym; /* 16 * 16 => 32 */
-
- t = lxm * hym; /* 16 * 16 => 32 */
- at = lrm + (t << 16);
- hrm += at < lrm;
- lrm = at;
- hrm = hrm + (t >> 16);
+ /* Multiple 24 bit xm and ym to give 48 bit results */
+ rm64 = (uint64_t)xm * ym;
- t = hxm * lym; /* 16 * 16 => 32 */
- at = lrm + (t << 16);
- hrm += at < lrm;
- lrm = at;
- hrm = hrm + (t >> 16);
+ /* Shunt to top of word */
+ rm64 = rm64 << 16;
- rm = hrm | (lrm != 0);
-
- /*
- * Sticky shift down to normal rounding precision.
- */
- if ((int) rm < 0) {
- rm = (rm >> (32 - (SP_FBITS + 1 + 3))) |
- ((rm << (SP_FBITS + 1 + 3)) != 0);
+ /* Put explicit bit at bit 62 if necessary */
+ if ((int64_t) rm64 < 0) {
+ rm64 = rm64 >> 1;
re++;
- } else {
- rm = (rm >> (32 - (SP_FBITS + 1 + 3 + 1))) |
- ((rm << (SP_FBITS + 1 + 3 + 1)) != 0);
}
- assert(rm & (SP_HIDDEN_BIT << 3));
-
- if (zc == IEEE754_CLASS_ZERO)
- return ieee754sp_format(rs, re, rm);
- /* And now the addition */
+ assert(rm64 & (1 << 62));
- assert(zm & SP_HIDDEN_BIT);
+ if (zc == IEEE754_CLASS_ZERO) {
+ /*
+ * Move explicit bit from bit 62 to bit 26 since the
+ * ieee754sp_format code expects the mantissa to be
+ * 27 bits wide (24 + 3 rounding bits).
+ */
+ rm = XSPSRS64(rm64, (62 - 26));
+ return ieee754sp_format(rs, re, rm);
+ }
- /*
- * Provide guard,round and stick bit space.
- */
- zm <<= 3;
+ /* Move explicit bit from bit 23 to bit 62 */
+ zm64 = (uint64_t)zm << (62 - 23);
+ assert(zm64 & (1 << 62));
+ /* Make the exponents the same */
if (ze > re) {
/*
* Have to shift r fraction right to align.
*/
s = ze - re;
- rm = XSPSRS(rm, s);
+ rm64 = XSPSRS64(rm64, s);
re += s;
} else if (re > ze) {
/*
* Have to shift z fraction right to align.
*/
s = re - ze;
- zm = XSPSRS(zm, s);
+ zm64 = XSPSRS64(zm64, s);
ze += s;
}
assert(ze == re);
assert(ze <= SP_EMAX);
+ /* Do the addition */
if (zs == rs) {
/*
- * Generate 28 bit result of adding two 27 bit numbers
- * leaving result in zm, zs and ze.
+ * Generate 64 bit result by adding two 63 bit numbers
+ * leaving result in zm64, zs and ze.
*/
- zm = zm + rm;
-
- if (zm >> (SP_FBITS + 1 + 3)) { /* carry out */
- zm = XSPSRS1(zm);
+ zm64 = zm64 + rm64;
+ if ((int64_t)zm64 < 0) { /* carry out */
+ zm64 = XSPSRS1(zm64);
ze++;
}
} else {
- if (zm >= rm) {
- zm = zm - rm;
+ if (zm64 >= rm64) {
+ zm64 = zm64 - rm64;
} else {
- zm = rm - zm;
+ zm64 = rm64 - zm64;
zs = rs;
}
- if (zm == 0)
+ if (zm64 == 0)
return ieee754sp_zero(ieee754_csr.rm == FPU_CSR_RD);
/*
- * Normalize in extended single precision
+ * Put explicit bit at bit 62 if necessary.
*/
- while ((zm >> (SP_MBITS + 3)) == 0) {
- zm <<= 1;
+ while ((zm64 >> 62) == 0) {
+ zm64 <<= 1;
ze--;
}
-
}
+
+ /*
+ * Move explicit bit from bit 62 to bit 26 since the
+ * ieee754sp_format code expects the mantissa to be
+ * 27 bits wide (24 + 3 rounding bits).
+ */
+ zm = XSPSRS64(zm64, (62 - 26));
+
return ieee754sp_format(zs, ze, zm);
}
@@ -275,5 +260,5 @@ union ieee754sp ieee754sp_maddf(union ieee754sp z, union ieee754sp x,
union ieee754sp ieee754sp_msubf(union ieee754sp z, union ieee754sp x,
union ieee754sp y)
{
- return _sp_maddf(z, x, y, maddf_negate_product);
+ return _sp_maddf(z, x, y, MADDF_NEGATE_PRODUCT);
}
diff --git a/arch/mips/math-emu/sp_rint.c b/arch/mips/math-emu/sp_rint.c
new file mode 100644
index 000000000000..70765b17e196
--- /dev/null
+++ b/arch/mips/math-emu/sp_rint.c
@@ -0,0 +1,90 @@
+/* IEEE754 floating point arithmetic
+ * single precision
+ */
+/*
+ * MIPS floating point support
+ * Copyright (C) 1994-2000 Algorithmics Ltd.
+ * Copyright (C) 2017 Imagination Technologies, Ltd.
+ * Author: Aleksandar Markovic <aleksandar.markovic@imgtec.com>
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.
+ */
+
+#include "ieee754sp.h"
+
+union ieee754sp ieee754sp_rint(union ieee754sp x)
+{
+ union ieee754sp ret;
+ u32 residue;
+ int sticky;
+ int round;
+ int odd;
+
+ COMPXDP; /* <-- DP needed for 64-bit mantissa tmp */
+
+ ieee754_clearcx();
+
+ EXPLODEXSP;
+ FLUSHXSP;
+
+ if (xc == IEEE754_CLASS_SNAN)
+ return ieee754sp_nanxcpt(x);
+
+ if ((xc == IEEE754_CLASS_QNAN) ||
+ (xc == IEEE754_CLASS_INF) ||
+ (xc == IEEE754_CLASS_ZERO))
+ return x;
+
+ if (xe >= SP_FBITS)
+ return x;
+
+ if (xe < -1) {
+ residue = xm;
+ round = 0;
+ sticky = residue != 0;
+ xm = 0;
+ } else {
+ residue = xm << (xe + 1);
+ residue <<= 31 - SP_FBITS;
+ round = (residue >> 31) != 0;
+ sticky = (residue << 1) != 0;
+ xm >>= SP_FBITS - xe;
+ }
+
+ odd = (xm & 0x1) != 0x0;
+
+ switch (ieee754_csr.rm) {
+ case FPU_CSR_RN: /* toward nearest */
+ if (round && (sticky || odd))
+ xm++;
+ break;
+ case FPU_CSR_RZ: /* toward zero */
+ break;
+ case FPU_CSR_RU: /* toward +infinity */
+ if ((round || sticky) && !xs)
+ xm++;
+ break;
+ case FPU_CSR_RD: /* toward -infinity */
+ if ((round || sticky) && xs)
+ xm++;
+ break;
+ }
+
+ if (round || sticky)
+ ieee754_setcx(IEEE754_INEXACT);
+
+ ret = ieee754sp_flong(xm);
+ SPSIGN(ret) = xs;
+
+ return ret;
+}
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 3fe99cb271a9..6f534b209971 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -37,7 +37,7 @@
#include <asm/cacheflush.h> /* for run_uncached() */
#include <asm/traps.h>
#include <asm/dma-coherence.h>
-#include <asm/mips-cm.h>
+#include <asm/mips-cps.h>
/*
* Bits describing what cache ops an SMP callback function may perform.
@@ -1453,6 +1453,7 @@ static void probe_pcache(void)
case CPU_20KC:
case CPU_25KF:
case CPU_I6400:
+ case CPU_I6500:
case CPU_SB1:
case CPU_SB1A:
case CPU_XLR:
@@ -1512,6 +1513,7 @@ static void probe_pcache(void)
case CPU_ALCHEMY:
case CPU_I6400:
+ case CPU_I6500:
c->icache.flags |= MIPS_CACHE_IC_F_DC;
break;
diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c
index 899e46279902..44ac64d51827 100644
--- a/arch/mips/mm/cache.c
+++ b/arch/mips/mm/cache.c
@@ -20,6 +20,7 @@
#include <asm/processor.h>
#include <asm/cpu.h>
#include <asm/cpu-features.h>
+#include <asm/setup.h>
/* Cache operations. */
void (*flush_cache_all)(void);
@@ -44,7 +45,6 @@ void (*__flush_cache_vunmap)(void);
void (*__flush_kernel_vmap_range)(unsigned long vaddr, int size);
EXPORT_SYMBOL_GPL(__flush_kernel_vmap_range);
-void (*__invalidate_kernel_vmap_range)(unsigned long vaddr, int size);
/* MIPS specific cache operations */
void (*flush_cache_sigtramp)(unsigned long addr);
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index e08598c70b3e..c01bd20d0208 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -127,23 +127,6 @@ static gfp_t massage_gfp_flags(const struct device *dev, gfp_t gfp)
return gfp | dma_flag;
}
-static void *mips_dma_alloc_noncoherent(struct device *dev, size_t size,
- dma_addr_t * dma_handle, gfp_t gfp)
-{
- void *ret;
-
- gfp = massage_gfp_flags(dev, gfp);
-
- ret = (void *) __get_free_pages(gfp, get_order(size));
-
- if (ret != NULL) {
- memset(ret, 0, size);
- *dma_handle = plat_map_dma_mem(dev, ret, size);
- }
-
- return ret;
-}
-
static void *mips_dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
{
@@ -151,13 +134,6 @@ static void *mips_dma_alloc_coherent(struct device *dev, size_t size,
struct page *page = NULL;
unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
- /*
- * XXX: seems like the coherent and non-coherent implementations could
- * be consolidated.
- */
- if (attrs & DMA_ATTR_NON_CONSISTENT)
- return mips_dma_alloc_noncoherent(dev, size, dma_handle, gfp);
-
gfp = massage_gfp_flags(dev, gfp);
if (IS_ENABLED(CONFIG_DMA_CMA) && gfpflags_allow_blocking(gfp))
@@ -172,7 +148,8 @@ static void *mips_dma_alloc_coherent(struct device *dev, size_t size,
ret = page_address(page);
memset(ret, 0, size);
*dma_handle = plat_map_dma_mem(dev, ret, size);
- if (!plat_device_is_coherent(dev)) {
+ if (!(attrs & DMA_ATTR_NON_CONSISTENT) &&
+ !plat_device_is_coherent(dev)) {
dma_cache_wback_inv((unsigned long) ret, size);
ret = UNCAC_ADDR(ret);
}
@@ -180,14 +157,6 @@ static void *mips_dma_alloc_coherent(struct device *dev, size_t size,
return ret;
}
-
-static void mips_dma_free_noncoherent(struct device *dev, size_t size,
- void *vaddr, dma_addr_t dma_handle)
-{
- plat_unmap_dma_mem(dev, dma_handle, size, DMA_BIDIRECTIONAL);
- free_pages((unsigned long) vaddr, get_order(size));
-}
-
static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle, unsigned long attrs)
{
@@ -195,14 +164,9 @@ static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr,
unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
struct page *page = NULL;
- if (attrs & DMA_ATTR_NON_CONSISTENT) {
- mips_dma_free_noncoherent(dev, size, vaddr, dma_handle);
- return;
- }
-
plat_unmap_dma_mem(dev, dma_handle, size, DMA_BIDIRECTIONAL);
- if (!plat_device_is_coherent(dev))
+ if (!(attrs & DMA_ATTR_NON_CONSISTENT) && !plat_device_is_coherent(dev))
addr = CAC_ADDR(addr);
page = virt_to_page((void *) addr);
@@ -232,7 +196,7 @@ static int mips_dma_mmap(struct device *dev, struct vm_area_struct *vma,
else
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
- if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
+ if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
return ret;
if (off < count && user_count <= (count - off)) {
@@ -409,12 +373,12 @@ static void mips_dma_sync_sg_for_device(struct device *dev,
}
}
-int mips_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+static int mips_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
{
return 0;
}
-int mips_dma_supported(struct device *dev, u64 mask)
+static int mips_dma_supported(struct device *dev, u64 mask)
{
return plat_dma_supported(dev, mask);
}
diff --git a/arch/mips/mm/hugetlbpage.c b/arch/mips/mm/hugetlbpage.c
index 74aa6f62468f..cef152234312 100644
--- a/arch/mips/mm/hugetlbpage.c
+++ b/arch/mips/mm/hugetlbpage.c
@@ -36,7 +36,8 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr,
return pte;
}
-pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
+pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr,
+ unsigned long sz)
{
pgd_t *pgd;
pud_t *pud;
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 8ce2983a7015..5f6ea7d746de 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -31,6 +31,7 @@
#include <linux/gfp.h>
#include <linux/kcore.h>
#include <linux/export.h>
+#include <linux/initrd.h>
#include <asm/asm-offsets.h>
#include <asm/bootinfo.h>
diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
index 28adeabe851f..33d3251ecd37 100644
--- a/arch/mips/mm/mmap.c
+++ b/arch/mips/mm/mmap.c
@@ -7,6 +7,7 @@
* written by Ralf Baechle <ralf@linux-mips.org>
*/
#include <linux/compiler.h>
+#include <linux/elf-randomize.h>
#include <linux/errno.h>
#include <linux/mm.h>
#include <linux/mman.h>
diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c
index c909c3342729..acfb89273dad 100644
--- a/arch/mips/mm/sc-mips.c
+++ b/arch/mips/mm/sc-mips.c
@@ -14,7 +14,7 @@
#include <asm/pgtable.h>
#include <asm/mmu_context.h>
#include <asm/r4kcache.h>
-#include <asm/mips-cm.h>
+#include <asm/mips-cps.h>
/*
* MIPS32/MIPS64 L2 cache handling
@@ -63,34 +63,25 @@ static void mips_sc_prefetch_enable(void)
* prefetching for both code & data, for all ports.
*/
pftctl = read_gcr_l2_pft_control();
- if (pftctl & CM_GCR_L2_PFT_CONTROL_NPFT_MSK) {
- pftctl &= ~CM_GCR_L2_PFT_CONTROL_PAGEMASK_MSK;
- pftctl |= PAGE_MASK & CM_GCR_L2_PFT_CONTROL_PAGEMASK_MSK;
- pftctl |= CM_GCR_L2_PFT_CONTROL_PFTEN_MSK;
+ if (pftctl & CM_GCR_L2_PFT_CONTROL_NPFT) {
+ pftctl &= ~CM_GCR_L2_PFT_CONTROL_PAGEMASK;
+ pftctl |= PAGE_MASK & CM_GCR_L2_PFT_CONTROL_PAGEMASK;
+ pftctl |= CM_GCR_L2_PFT_CONTROL_PFTEN;
write_gcr_l2_pft_control(pftctl);
- pftctl = read_gcr_l2_pft_control_b();
- pftctl |= CM_GCR_L2_PFT_CONTROL_B_PORTID_MSK;
- pftctl |= CM_GCR_L2_PFT_CONTROL_B_CEN_MSK;
- write_gcr_l2_pft_control_b(pftctl);
+ set_gcr_l2_pft_control_b(CM_GCR_L2_PFT_CONTROL_B_PORTID |
+ CM_GCR_L2_PFT_CONTROL_B_CEN);
}
}
static void mips_sc_prefetch_disable(void)
{
- unsigned long pftctl;
-
if (mips_cm_revision() < CM_REV_CM2_5)
return;
- pftctl = read_gcr_l2_pft_control();
- pftctl &= ~CM_GCR_L2_PFT_CONTROL_PFTEN_MSK;
- write_gcr_l2_pft_control(pftctl);
-
- pftctl = read_gcr_l2_pft_control_b();
- pftctl &= ~CM_GCR_L2_PFT_CONTROL_B_PORTID_MSK;
- pftctl &= ~CM_GCR_L2_PFT_CONTROL_B_CEN_MSK;
- write_gcr_l2_pft_control_b(pftctl);
+ clear_gcr_l2_pft_control(CM_GCR_L2_PFT_CONTROL_PFTEN);
+ clear_gcr_l2_pft_control_b(CM_GCR_L2_PFT_CONTROL_B_PORTID |
+ CM_GCR_L2_PFT_CONTROL_B_CEN);
}
static bool mips_sc_prefetch_is_enabled(void)
@@ -101,9 +92,9 @@ static bool mips_sc_prefetch_is_enabled(void)
return false;
pftctl = read_gcr_l2_pft_control();
- if (!(pftctl & CM_GCR_L2_PFT_CONTROL_NPFT_MSK))
+ if (!(pftctl & CM_GCR_L2_PFT_CONTROL_NPFT))
return false;
- return !!(pftctl & CM_GCR_L2_PFT_CONTROL_PFTEN_MSK);
+ return !!(pftctl & CM_GCR_L2_PFT_CONTROL_PFTEN);
}
static struct bcache_ops mips_sc_ops = {
@@ -160,21 +151,21 @@ static int __init mips_sc_probe_cm3(void)
unsigned long cfg = read_gcr_l2_config();
unsigned long sets, line_sz, assoc;
- if (cfg & CM_GCR_L2_CONFIG_BYPASS_MSK)
+ if (cfg & CM_GCR_L2_CONFIG_BYPASS)
return 0;
- sets = cfg & CM_GCR_L2_CONFIG_SET_SIZE_MSK;
- sets >>= CM_GCR_L2_CONFIG_SET_SIZE_SHF;
+ sets = cfg & CM_GCR_L2_CONFIG_SET_SIZE;
+ sets >>= __ffs(CM_GCR_L2_CONFIG_SET_SIZE);
if (sets)
c->scache.sets = 64 << sets;
- line_sz = cfg & CM_GCR_L2_CONFIG_LINE_SIZE_MSK;
- line_sz >>= CM_GCR_L2_CONFIG_LINE_SIZE_SHF;
+ line_sz = cfg & CM_GCR_L2_CONFIG_LINE_SIZE;
+ line_sz >>= __ffs(CM_GCR_L2_CONFIG_LINE_SIZE);
if (line_sz)
c->scache.linesz = 2 << line_sz;
- assoc = cfg & CM_GCR_L2_CONFIG_ASSOC_MSK;
- assoc >>= CM_GCR_L2_CONFIG_ASSOC_SHF;
+ assoc = cfg & CM_GCR_L2_CONFIG_ASSOC;
+ assoc >>= __ffs(CM_GCR_L2_CONFIG_ASSOC);
c->scache.ways = assoc + 1;
c->scache.waysize = c->scache.sets * c->scache.linesz;
c->scache.waybit = __ffs(c->scache.waysize);
diff --git a/arch/mips/mm/tlbex-fault.S b/arch/mips/mm/tlbex-fault.S
index 318855eb5f80..77db401fc620 100644
--- a/arch/mips/mm/tlbex-fault.S
+++ b/arch/mips/mm/tlbex-fault.S
@@ -12,14 +12,15 @@
.macro tlb_do_page_fault, write
NESTED(tlb_do_page_fault_\write, PT_SIZE, sp)
- SAVE_ALL
+ .cfi_signal_frame
+ SAVE_ALL docfi=1
MFC0 a2, CP0_BADVADDR
KMODE
move a0, sp
REG_S a2, PT_BVADDR(sp)
li a1, \write
- PTR_LA ra, ret_from_exception
- j do_page_fault
+ jal do_page_fault
+ j ret_from_exception
END(tlb_do_page_fault_\write)
.endm
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index ed1c5297547a..79b9f2ad3ff5 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -153,8 +153,7 @@ static int scratchpad_offset(int i)
*/
static int m4kc_tlbp_war(void)
{
- return (current_cpu_data.processor_id & 0xffff00) ==
- (PRID_COMP_MIPS | PRID_IMP_4KC);
+ return current_cpu_type() == CPU_4KC;
}
/* Handle labels (which must be positive integers). */
@@ -2015,6 +2014,26 @@ static void build_r3000_tlb_modify_handler(void)
}
#endif /* CONFIG_MIPS_PGD_C0_CONTEXT */
+static bool cpu_has_tlbex_tlbp_race(void)
+{
+ /*
+ * When a Hardware Table Walker is running it can replace TLB entries
+ * at any time, leading to a race between it & the CPU.
+ */
+ if (cpu_has_htw)
+ return true;
+
+ /*
+ * If the CPU shares FTLB RAM with its siblings then our entry may be
+ * replaced at any time by a sibling performing a write to the FTLB.
+ */
+ if (cpu_has_shared_ftlb_ram)
+ return true;
+
+ /* In all other cases there ought to be no race condition to handle */
+ return false;
+}
+
/*
* R4000 style TLB load/store/modify handlers.
*/
@@ -2051,7 +2070,7 @@ build_r4000_tlbchange_handler_head(u32 **p, struct uasm_label **l,
iPTE_LW(p, wr.r1, wr.r2); /* get even pte */
if (!m4kc_tlbp_war()) {
build_tlb_probe_entry(p);
- if (cpu_has_htw) {
+ if (cpu_has_tlbex_tlbp_race()) {
/* race condition happens, leaving */
uasm_i_ehb(p);
uasm_i_mfc0(p, wr.r3, C0_INDEX);
@@ -2125,6 +2144,14 @@ static void build_r4000_tlb_load_handler(void)
}
uasm_i_nop(&p);
+ /*
+ * Warn if something may race with us & replace the TLB entry
+ * before we read it here. Everything with such races should
+ * also have dedicated RiXi exception handlers, so this
+ * shouldn't be hit.
+ */
+ WARN(cpu_has_tlbex_tlbp_race(), "Unhandled race in RiXi path");
+
uasm_i_tlbr(&p);
switch (current_cpu_type()) {
@@ -2192,6 +2219,14 @@ static void build_r4000_tlb_load_handler(void)
}
uasm_i_nop(&p);
+ /*
+ * Warn if something may race with us & replace the TLB entry
+ * before we read it here. Everything with such races should
+ * also have dedicated RiXi exception handlers, so this
+ * shouldn't be hit.
+ */
+ WARN(cpu_has_tlbex_tlbp_race(), "Unhandled race in RiXi path");
+
uasm_i_tlbr(&p);
switch (current_cpu_type()) {
@@ -2599,11 +2634,6 @@ void build_tlb_refill_handler(void)
#endif
break;
- case CPU_R6000:
- case CPU_R6000A:
- panic("No R6000 TLB refill handler yet");
- break;
-
case CPU_R8000:
panic("No R8000 TLB refill handler yet");
break;
diff --git a/arch/mips/mm/uasm-micromips.c b/arch/mips/mm/uasm-micromips.c
index 277cf52d80e1..c28ff53c8da0 100644
--- a/arch/mips/mm/uasm-micromips.c
+++ b/arch/mips/mm/uasm-micromips.c
@@ -40,93 +40,92 @@
#include "uasm.c"
-static struct insn insn_table_MM[] = {
- { insn_addu, M(mm_pool32a_op, 0, 0, 0, 0, mm_addu32_op), RT | RS | RD },
- { insn_addiu, M(mm_addiu32_op, 0, 0, 0, 0, 0), RT | RS | SIMM },
- { insn_and, M(mm_pool32a_op, 0, 0, 0, 0, mm_and_op), RT | RS | RD },
- { insn_andi, M(mm_andi32_op, 0, 0, 0, 0, 0), RT | RS | UIMM },
- { insn_beq, M(mm_beq32_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
- { insn_beql, 0, 0 },
- { insn_bgez, M(mm_pool32i_op, mm_bgez_op, 0, 0, 0, 0), RS | BIMM },
- { insn_bgezl, 0, 0 },
- { insn_bltz, M(mm_pool32i_op, mm_bltz_op, 0, 0, 0, 0), RS | BIMM },
- { insn_bltzl, 0, 0 },
- { insn_bne, M(mm_bne32_op, 0, 0, 0, 0, 0), RT | RS | BIMM },
- { insn_cache, M(mm_pool32b_op, 0, 0, mm_cache_func, 0, 0), RT | RS | SIMM },
- { insn_cfc1, M(mm_pool32f_op, 0, 0, 0, mm_cfc1_op, mm_32f_73_op), RT | RS },
- { insn_cfcmsa, M(mm_pool32s_op, 0, msa_cfc_op, 0, 0, mm_32s_elm_op), RD | RE },
- { insn_ctc1, M(mm_pool32f_op, 0, 0, 0, mm_ctc1_op, mm_32f_73_op), RT | RS },
- { insn_ctcmsa, M(mm_pool32s_op, 0, msa_ctc_op, 0, 0, mm_32s_elm_op), RD | RE },
- { insn_daddu, 0, 0 },
- { insn_daddiu, 0, 0 },
- { insn_di, M(mm_pool32a_op, 0, 0, 0, mm_di_op, mm_pool32axf_op), RS },
- { insn_divu, M(mm_pool32a_op, 0, 0, 0, mm_divu_op, mm_pool32axf_op), RT | RS },
- { insn_dmfc0, 0, 0 },
- { insn_dmtc0, 0, 0 },
- { insn_dsll, 0, 0 },
- { insn_dsll32, 0, 0 },
- { insn_dsra, 0, 0 },
- { insn_dsrl, 0, 0 },
- { insn_dsrl32, 0, 0 },
- { insn_drotr, 0, 0 },
- { insn_drotr32, 0, 0 },
- { insn_dsubu, 0, 0 },
- { insn_eret, M(mm_pool32a_op, 0, 0, 0, mm_eret_op, mm_pool32axf_op), 0 },
- { insn_ins, M(mm_pool32a_op, 0, 0, 0, 0, mm_ins_op), RT | RS | RD | RE },
- { insn_ext, M(mm_pool32a_op, 0, 0, 0, 0, mm_ext_op), RT | RS | RD | RE },
- { insn_j, M(mm_j32_op, 0, 0, 0, 0, 0), JIMM },
- { insn_jal, M(mm_jal32_op, 0, 0, 0, 0, 0), JIMM },
- { insn_jalr, M(mm_pool32a_op, 0, 0, 0, mm_jalr_op, mm_pool32axf_op), RT | RS },
- { insn_jr, M(mm_pool32a_op, 0, 0, 0, mm_jalr_op, mm_pool32axf_op), RS },
- { insn_lb, M(mm_lb32_op, 0, 0, 0, 0, 0), RT | RS | SIMM },
- { insn_ld, 0, 0 },
- { insn_lh, M(mm_lh32_op, 0, 0, 0, 0, 0), RS | RS | SIMM },
- { insn_ll, M(mm_pool32c_op, 0, 0, (mm_ll_func << 1), 0, 0), RS | RT | SIMM },
- { insn_lld, 0, 0 },
- { insn_lui, M(mm_pool32i_op, mm_lui_op, 0, 0, 0, 0), RS | SIMM },
- { insn_lw, M(mm_lw32_op, 0, 0, 0, 0, 0), RT | RS | SIMM },
- { insn_mfc0, M(mm_pool32a_op, 0, 0, 0, mm_mfc0_op, mm_pool32axf_op), RT | RS | RD },
- { insn_mfhi, M(mm_pool32a_op, 0, 0, 0, mm_mfhi32_op, mm_pool32axf_op), RS },
- { insn_mflo, M(mm_pool32a_op, 0, 0, 0, mm_mflo32_op, mm_pool32axf_op), RS },
- { insn_mtc0, M(mm_pool32a_op, 0, 0, 0, mm_mtc0_op, mm_pool32axf_op), RT | RS | RD },
- { insn_mthi, M(mm_pool32a_op, 0, 0, 0, mm_mthi32_op, mm_pool32axf_op), RS },
- { insn_mtlo, M(mm_pool32a_op, 0, 0, 0, mm_mtlo32_op, mm_pool32axf_op), RS },
- { insn_mul, M(mm_pool32a_op, 0, 0, 0, 0, mm_mul_op), RT | RS | RD },
- { insn_or, M(mm_pool32a_op, 0, 0, 0, 0, mm_or32_op), RT | RS | RD },
- { insn_ori, M(mm_ori32_op, 0, 0, 0, 0, 0), RT | RS | UIMM },
- { insn_pref, M(mm_pool32c_op, 0, 0, (mm_pref_func << 1), 0, 0), RT | RS | SIMM },
- { insn_rfe, 0, 0 },
- { insn_sc, M(mm_pool32c_op, 0, 0, (mm_sc_func << 1), 0, 0), RT | RS | SIMM },
- { insn_scd, 0, 0 },
- { insn_sd, 0, 0 },
- { insn_sll, M(mm_pool32a_op, 0, 0, 0, 0, mm_sll32_op), RT | RS | RD },
- { insn_sllv, M(mm_pool32a_op, 0, 0, 0, 0, mm_sllv32_op), RT | RS | RD },
- { insn_slt, M(mm_pool32a_op, 0, 0, 0, 0, mm_slt_op), RT | RS | RD },
- { insn_sltiu, M(mm_sltiu32_op, 0, 0, 0, 0, 0), RT | RS | SIMM },
- { insn_sltu, M(mm_pool32a_op, 0, 0, 0, 0, mm_sltu_op), RT | RS | RD },
- { insn_sra, M(mm_pool32a_op, 0, 0, 0, 0, mm_sra_op), RT | RS | RD },
- { insn_srl, M(mm_pool32a_op, 0, 0, 0, 0, mm_srl32_op), RT | RS | RD },
- { insn_srlv, M(mm_pool32a_op, 0, 0, 0, 0, mm_srlv32_op), RT | RS | RD },
- { insn_rotr, M(mm_pool32a_op, 0, 0, 0, 0, mm_rotr_op), RT | RS | RD },
- { insn_subu, M(mm_pool32a_op, 0, 0, 0, 0, mm_subu32_op), RT | RS | RD },
- { insn_sw, M(mm_sw32_op, 0, 0, 0, 0, 0), RT | RS | SIMM },
- { insn_sync, M(mm_pool32a_op, 0, 0, 0, mm_sync_op, mm_pool32axf_op), RS },
- { insn_tlbp, M(mm_pool32a_op, 0, 0, 0, mm_tlbp_op, mm_pool32axf_op), 0 },
- { insn_tlbr, M(mm_pool32a_op, 0, 0, 0, mm_tlbr_op, mm_pool32axf_op), 0 },
- { insn_tlbwi, M(mm_pool32a_op, 0, 0, 0, mm_tlbwi_op, mm_pool32axf_op), 0 },
- { insn_tlbwr, M(mm_pool32a_op, 0, 0, 0, mm_tlbwr_op, mm_pool32axf_op), 0 },
- { insn_wait, M(mm_pool32a_op, 0, 0, 0, mm_wait_op, mm_pool32axf_op), SCIMM },
- { insn_wsbh, M(mm_pool32a_op, 0, 0, 0, mm_wsbh_op, mm_pool32axf_op), RT | RS },
- { insn_xor, M(mm_pool32a_op, 0, 0, 0, 0, mm_xor32_op), RT | RS | RD },
- { insn_xori, M(mm_xori32_op, 0, 0, 0, 0, 0), RT | RS | UIMM },
- { insn_dins, 0, 0 },
- { insn_dinsm, 0, 0 },
- { insn_syscall, M(mm_pool32a_op, 0, 0, 0, mm_syscall_op, mm_pool32axf_op), SCIMM},
- { insn_bbit0, 0, 0 },
- { insn_bbit1, 0, 0 },
- { insn_lwx, 0, 0 },
- { insn_ldx, 0, 0 },
- { insn_invalid, 0, 0 }
+static const struct insn const insn_table_MM[insn_invalid] = {
+ [insn_addu] = {M(mm_pool32a_op, 0, 0, 0, 0, mm_addu32_op), RT | RS | RD},
+ [insn_addiu] = {M(mm_addiu32_op, 0, 0, 0, 0, 0), RT | RS | SIMM},
+ [insn_and] = {M(mm_pool32a_op, 0, 0, 0, 0, mm_and_op), RT | RS | RD},
+ [insn_andi] = {M(mm_andi32_op, 0, 0, 0, 0, 0), RT | RS | UIMM},
+ [insn_beq] = {M(mm_beq32_op, 0, 0, 0, 0, 0), RS | RT | BIMM},
+ [insn_beql] = {0, 0},
+ [insn_bgez] = {M(mm_pool32i_op, mm_bgez_op, 0, 0, 0, 0), RS | BIMM},
+ [insn_bgezl] = {0, 0},
+ [insn_bltz] = {M(mm_pool32i_op, mm_bltz_op, 0, 0, 0, 0), RS | BIMM},
+ [insn_bltzl] = {0, 0},
+ [insn_bne] = {M(mm_bne32_op, 0, 0, 0, 0, 0), RT | RS | BIMM},
+ [insn_cache] = {M(mm_pool32b_op, 0, 0, mm_cache_func, 0, 0), RT | RS | SIMM},
+ [insn_cfc1] = {M(mm_pool32f_op, 0, 0, 0, mm_cfc1_op, mm_32f_73_op), RT | RS},
+ [insn_cfcmsa] = {M(mm_pool32s_op, 0, msa_cfc_op, 0, 0, mm_32s_elm_op), RD | RE},
+ [insn_ctc1] = {M(mm_pool32f_op, 0, 0, 0, mm_ctc1_op, mm_32f_73_op), RT | RS},
+ [insn_ctcmsa] = {M(mm_pool32s_op, 0, msa_ctc_op, 0, 0, mm_32s_elm_op), RD | RE},
+ [insn_daddu] = {0, 0},
+ [insn_daddiu] = {0, 0},
+ [insn_di] = {M(mm_pool32a_op, 0, 0, 0, mm_di_op, mm_pool32axf_op), RS},
+ [insn_divu] = {M(mm_pool32a_op, 0, 0, 0, mm_divu_op, mm_pool32axf_op), RT | RS},
+ [insn_dmfc0] = {0, 0},
+ [insn_dmtc0] = {0, 0},
+ [insn_dsll] = {0, 0},
+ [insn_dsll32] = {0, 0},
+ [insn_dsra] = {0, 0},
+ [insn_dsrl] = {0, 0},
+ [insn_dsrl32] = {0, 0},
+ [insn_drotr] = {0, 0},
+ [insn_drotr32] = {0, 0},
+ [insn_dsubu] = {0, 0},
+ [insn_eret] = {M(mm_pool32a_op, 0, 0, 0, mm_eret_op, mm_pool32axf_op), 0},
+ [insn_ins] = {M(mm_pool32a_op, 0, 0, 0, 0, mm_ins_op), RT | RS | RD | RE},
+ [insn_ext] = {M(mm_pool32a_op, 0, 0, 0, 0, mm_ext_op), RT | RS | RD | RE},
+ [insn_j] = {M(mm_j32_op, 0, 0, 0, 0, 0), JIMM},
+ [insn_jal] = {M(mm_jal32_op, 0, 0, 0, 0, 0), JIMM},
+ [insn_jalr] = {M(mm_pool32a_op, 0, 0, 0, mm_jalr_op, mm_pool32axf_op), RT | RS},
+ [insn_jr] = {M(mm_pool32a_op, 0, 0, 0, mm_jalr_op, mm_pool32axf_op), RS},
+ [insn_lb] = {M(mm_lb32_op, 0, 0, 0, 0, 0), RT | RS | SIMM},
+ [insn_ld] = {0, 0},
+ [insn_lh] = {M(mm_lh32_op, 0, 0, 0, 0, 0), RS | RS | SIMM},
+ [insn_ll] = {M(mm_pool32c_op, 0, 0, (mm_ll_func << 1), 0, 0), RS | RT | SIMM},
+ [insn_lld] = {0, 0},
+ [insn_lui] = {M(mm_pool32i_op, mm_lui_op, 0, 0, 0, 0), RS | SIMM},
+ [insn_lw] = {M(mm_lw32_op, 0, 0, 0, 0, 0), RT | RS | SIMM},
+ [insn_mfc0] = {M(mm_pool32a_op, 0, 0, 0, mm_mfc0_op, mm_pool32axf_op), RT | RS | RD},
+ [insn_mfhi] = {M(mm_pool32a_op, 0, 0, 0, mm_mfhi32_op, mm_pool32axf_op), RS},
+ [insn_mflo] = {M(mm_pool32a_op, 0, 0, 0, mm_mflo32_op, mm_pool32axf_op), RS},
+ [insn_mtc0] = {M(mm_pool32a_op, 0, 0, 0, mm_mtc0_op, mm_pool32axf_op), RT | RS | RD},
+ [insn_mthi] = {M(mm_pool32a_op, 0, 0, 0, mm_mthi32_op, mm_pool32axf_op), RS},
+ [insn_mtlo] = {M(mm_pool32a_op, 0, 0, 0, mm_mtlo32_op, mm_pool32axf_op), RS},
+ [insn_mul] = {M(mm_pool32a_op, 0, 0, 0, 0, mm_mul_op), RT | RS | RD},
+ [insn_or] = {M(mm_pool32a_op, 0, 0, 0, 0, mm_or32_op), RT | RS | RD},
+ [insn_ori] = {M(mm_ori32_op, 0, 0, 0, 0, 0), RT | RS | UIMM},
+ [insn_pref] = {M(mm_pool32c_op, 0, 0, (mm_pref_func << 1), 0, 0), RT | RS | SIMM},
+ [insn_rfe] = {0, 0},
+ [insn_sc] = {M(mm_pool32c_op, 0, 0, (mm_sc_func << 1), 0, 0), RT | RS | SIMM},
+ [insn_scd] = {0, 0},
+ [insn_sd] = {0, 0},
+ [insn_sll] = {M(mm_pool32a_op, 0, 0, 0, 0, mm_sll32_op), RT | RS | RD},
+ [insn_sllv] = {M(mm_pool32a_op, 0, 0, 0, 0, mm_sllv32_op), RT | RS | RD},
+ [insn_slt] = {M(mm_pool32a_op, 0, 0, 0, 0, mm_slt_op), RT | RS | RD},
+ [insn_sltiu] = {M(mm_sltiu32_op, 0, 0, 0, 0, 0), RT | RS | SIMM},
+ [insn_sltu] = {M(mm_pool32a_op, 0, 0, 0, 0, mm_sltu_op), RT | RS | RD},
+ [insn_sra] = {M(mm_pool32a_op, 0, 0, 0, 0, mm_sra_op), RT | RS | RD},
+ [insn_srl] = {M(mm_pool32a_op, 0, 0, 0, 0, mm_srl32_op), RT | RS | RD},
+ [insn_srlv] = {M(mm_pool32a_op, 0, 0, 0, 0, mm_srlv32_op), RT | RS | RD},
+ [insn_rotr] = {M(mm_pool32a_op, 0, 0, 0, 0, mm_rotr_op), RT | RS | RD},
+ [insn_subu] = {M(mm_pool32a_op, 0, 0, 0, 0, mm_subu32_op), RT | RS | RD},
+ [insn_sw] = {M(mm_sw32_op, 0, 0, 0, 0, 0), RT | RS | SIMM},
+ [insn_sync] = {M(mm_pool32a_op, 0, 0, 0, mm_sync_op, mm_pool32axf_op), RS},
+ [insn_tlbp] = {M(mm_pool32a_op, 0, 0, 0, mm_tlbp_op, mm_pool32axf_op), 0},
+ [insn_tlbr] = {M(mm_pool32a_op, 0, 0, 0, mm_tlbr_op, mm_pool32axf_op), 0},
+ [insn_tlbwi] = {M(mm_pool32a_op, 0, 0, 0, mm_tlbwi_op, mm_pool32axf_op), 0},
+ [insn_tlbwr] = {M(mm_pool32a_op, 0, 0, 0, mm_tlbwr_op, mm_pool32axf_op), 0},
+ [insn_wait] = {M(mm_pool32a_op, 0, 0, 0, mm_wait_op, mm_pool32axf_op), SCIMM},
+ [insn_wsbh] = {M(mm_pool32a_op, 0, 0, 0, mm_wsbh_op, mm_pool32axf_op), RT | RS},
+ [insn_xor] = {M(mm_pool32a_op, 0, 0, 0, 0, mm_xor32_op), RT | RS | RD},
+ [insn_xori] = {M(mm_xori32_op, 0, 0, 0, 0, 0), RT | RS | UIMM},
+ [insn_dins] = {0, 0},
+ [insn_dinsm] = {0, 0},
+ [insn_syscall] = {M(mm_pool32a_op, 0, 0, 0, mm_syscall_op, mm_pool32axf_op), SCIMM},
+ [insn_bbit0] = {0, 0},
+ [insn_bbit1] = {0, 0},
+ [insn_lwx] = {0, 0},
+ [insn_ldx] = {0, 0},
};
#undef M
@@ -156,20 +155,17 @@ static inline u32 build_jimm(u32 arg)
*/
static void build_insn(u32 **buf, enum opcode opc, ...)
{
- struct insn *ip = NULL;
- unsigned int i;
+ const struct insn *ip;
va_list ap;
u32 op;
- for (i = 0; insn_table_MM[i].opcode != insn_invalid; i++)
- if (insn_table_MM[i].opcode == opc) {
- ip = &insn_table_MM[i];
- break;
- }
-
- if (!ip || (opc == insn_daddiu && r4k_daddiu_bug()))
+ if (opc < 0 || opc >= insn_invalid ||
+ (opc == insn_daddiu && r4k_daddiu_bug()) ||
+ (insn_table_MM[opc].match == 0 && insn_table_MM[opc].fields == 0))
panic("Unsupported Micro-assembler instruction %d", opc);
+ ip = &insn_table_MM[opc];
+
op = ip->match;
va_start(ap, opc);
if (ip->fields & RS) {
diff --git a/arch/mips/mm/uasm-mips.c b/arch/mips/mm/uasm-mips.c
index 2277499fe6ae..9fea6c6bbf49 100644
--- a/arch/mips/mm/uasm-mips.c
+++ b/arch/mips/mm/uasm-mips.c
@@ -48,126 +48,145 @@
#include "uasm.c"
-static struct insn insn_table[] = {
- { insn_addiu, M(addiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
- { insn_addu, M(spec_op, 0, 0, 0, 0, addu_op), RS | RT | RD },
- { insn_andi, M(andi_op, 0, 0, 0, 0, 0), RS | RT | UIMM },
- { insn_and, M(spec_op, 0, 0, 0, 0, and_op), RS | RT | RD },
- { insn_bbit0, M(lwc2_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
- { insn_bbit1, M(swc2_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
- { insn_beql, M(beql_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
- { insn_beq, M(beq_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
- { insn_bgezl, M(bcond_op, 0, bgezl_op, 0, 0, 0), RS | BIMM },
- { insn_bgez, M(bcond_op, 0, bgez_op, 0, 0, 0), RS | BIMM },
- { insn_bltzl, M(bcond_op, 0, bltzl_op, 0, 0, 0), RS | BIMM },
- { insn_bltz, M(bcond_op, 0, bltz_op, 0, 0, 0), RS | BIMM },
- { insn_bne, M(bne_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
+static const struct insn insn_table[insn_invalid] = {
+ [insn_addiu] = {M(addiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+ [insn_addu] = {M(spec_op, 0, 0, 0, 0, addu_op), RS | RT | RD},
+ [insn_and] = {M(spec_op, 0, 0, 0, 0, and_op), RS | RT | RD},
+ [insn_andi] = {M(andi_op, 0, 0, 0, 0, 0), RS | RT | UIMM},
+ [insn_bbit0] = {M(lwc2_op, 0, 0, 0, 0, 0), RS | RT | BIMM},
+ [insn_bbit1] = {M(swc2_op, 0, 0, 0, 0, 0), RS | RT | BIMM},
+ [insn_beq] = {M(beq_op, 0, 0, 0, 0, 0), RS | RT | BIMM},
+ [insn_beql] = {M(beql_op, 0, 0, 0, 0, 0), RS | RT | BIMM},
+ [insn_bgez] = {M(bcond_op, 0, bgez_op, 0, 0, 0), RS | BIMM},
+ [insn_bgezl] = {M(bcond_op, 0, bgezl_op, 0, 0, 0), RS | BIMM},
+ [insn_bgtz] = {M(bgtz_op, 0, 0, 0, 0, 0), RS | BIMM},
+ [insn_blez] = {M(blez_op, 0, 0, 0, 0, 0), RS | BIMM},
+ [insn_bltz] = {M(bcond_op, 0, bltz_op, 0, 0, 0), RS | BIMM},
+ [insn_bltzl] = {M(bcond_op, 0, bltzl_op, 0, 0, 0), RS | BIMM},
+ [insn_bne] = {M(bne_op, 0, 0, 0, 0, 0), RS | RT | BIMM},
+ [insn_break] = {M(spec_op, 0, 0, 0, 0, break_op), SCIMM},
#ifndef CONFIG_CPU_MIPSR6
- { insn_cache, M(cache_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
+ [insn_cache] = {M(cache_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
#else
- { insn_cache, M6(spec3_op, 0, 0, 0, cache6_op), RS | RT | SIMM9 },
+ [insn_cache] = {M6(spec3_op, 0, 0, 0, cache6_op), RS | RT | SIMM9},
#endif
- { insn_cfc1, M(cop1_op, cfc_op, 0, 0, 0, 0), RT | RD },
- { insn_cfcmsa, M(msa_op, 0, msa_cfc_op, 0, 0, msa_elm_op), RD | RE },
- { insn_ctc1, M(cop1_op, ctc_op, 0, 0, 0, 0), RT | RD },
- { insn_ctcmsa, M(msa_op, 0, msa_ctc_op, 0, 0, msa_elm_op), RD | RE },
- { insn_daddiu, M(daddiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
- { insn_daddu, M(spec_op, 0, 0, 0, 0, daddu_op), RS | RT | RD },
- { insn_dinsm, M(spec3_op, 0, 0, 0, 0, dinsm_op), RS | RT | RD | RE },
- { insn_di, M(cop0_op, mfmc0_op, 0, 12, 0, 0), RT },
- { insn_dins, M(spec3_op, 0, 0, 0, 0, dins_op), RS | RT | RD | RE },
- { insn_divu, M(spec_op, 0, 0, 0, 0, divu_op), RS | RT },
- { insn_dmfc0, M(cop0_op, dmfc_op, 0, 0, 0, 0), RT | RD | SET},
- { insn_dmtc0, M(cop0_op, dmtc_op, 0, 0, 0, 0), RT | RD | SET},
- { insn_drotr32, M(spec_op, 1, 0, 0, 0, dsrl32_op), RT | RD | RE },
- { insn_drotr, M(spec_op, 1, 0, 0, 0, dsrl_op), RT | RD | RE },
- { insn_dsll32, M(spec_op, 0, 0, 0, 0, dsll32_op), RT | RD | RE },
- { insn_dsll, M(spec_op, 0, 0, 0, 0, dsll_op), RT | RD | RE },
- { insn_dsra, M(spec_op, 0, 0, 0, 0, dsra_op), RT | RD | RE },
- { insn_dsrl32, M(spec_op, 0, 0, 0, 0, dsrl32_op), RT | RD | RE },
- { insn_dsrl, M(spec_op, 0, 0, 0, 0, dsrl_op), RT | RD | RE },
- { insn_dsubu, M(spec_op, 0, 0, 0, 0, dsubu_op), RS | RT | RD },
- { insn_eret, M(cop0_op, cop_op, 0, 0, 0, eret_op), 0 },
- { insn_ext, M(spec3_op, 0, 0, 0, 0, ext_op), RS | RT | RD | RE },
- { insn_ins, M(spec3_op, 0, 0, 0, 0, ins_op), RS | RT | RD | RE },
- { insn_j, M(j_op, 0, 0, 0, 0, 0), JIMM },
- { insn_jal, M(jal_op, 0, 0, 0, 0, 0), JIMM },
- { insn_jalr, M(spec_op, 0, 0, 0, 0, jalr_op), RS | RD },
- { insn_j, M(j_op, 0, 0, 0, 0, 0), JIMM },
+ [insn_cfc1] = {M(cop1_op, cfc_op, 0, 0, 0, 0), RT | RD},
+ [insn_cfcmsa] = {M(msa_op, 0, msa_cfc_op, 0, 0, msa_elm_op), RD | RE},
+ [insn_ctc1] = {M(cop1_op, ctc_op, 0, 0, 0, 0), RT | RD},
+ [insn_ctcmsa] = {M(msa_op, 0, msa_ctc_op, 0, 0, msa_elm_op), RD | RE},
+ [insn_daddiu] = {M(daddiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+ [insn_daddu] = {M(spec_op, 0, 0, 0, 0, daddu_op), RS | RT | RD},
+ [insn_ddivu] = {M(spec_op, 0, 0, 0, 0, ddivu_op), RS | RT},
+ [insn_di] = {M(cop0_op, mfmc0_op, 0, 12, 0, 0), RT},
+ [insn_dins] = {M(spec3_op, 0, 0, 0, 0, dins_op), RS | RT | RD | RE},
+ [insn_dinsm] = {M(spec3_op, 0, 0, 0, 0, dinsm_op), RS | RT | RD | RE},
+ [insn_dinsu] = {M(spec3_op, 0, 0, 0, 0, dinsu_op), RS | RT | RD | RE},
+ [insn_divu] = {M(spec_op, 0, 0, 0, 0, divu_op), RS | RT},
+ [insn_dmfc0] = {M(cop0_op, dmfc_op, 0, 0, 0, 0), RT | RD | SET},
+ [insn_dmtc0] = {M(cop0_op, dmtc_op, 0, 0, 0, 0), RT | RD | SET},
+ [insn_dmultu] = {M(spec_op, 0, 0, 0, 0, dmultu_op), RS | RT},
+ [insn_drotr] = {M(spec_op, 1, 0, 0, 0, dsrl_op), RT | RD | RE},
+ [insn_drotr32] = {M(spec_op, 1, 0, 0, 0, dsrl32_op), RT | RD | RE},
+ [insn_dsbh] = {M(spec3_op, 0, 0, 0, dsbh_op, dbshfl_op), RT | RD},
+ [insn_dshd] = {M(spec3_op, 0, 0, 0, dshd_op, dbshfl_op), RT | RD},
+ [insn_dsll] = {M(spec_op, 0, 0, 0, 0, dsll_op), RT | RD | RE},
+ [insn_dsll32] = {M(spec_op, 0, 0, 0, 0, dsll32_op), RT | RD | RE},
+ [insn_dsllv] = {M(spec_op, 0, 0, 0, 0, dsllv_op), RS | RT | RD},
+ [insn_dsra] = {M(spec_op, 0, 0, 0, 0, dsra_op), RT | RD | RE},
+ [insn_dsra32] = {M(spec_op, 0, 0, 0, 0, dsra32_op), RT | RD | RE},
+ [insn_dsrav] = {M(spec_op, 0, 0, 0, 0, dsrav_op), RS | RT | RD},
+ [insn_dsrl] = {M(spec_op, 0, 0, 0, 0, dsrl_op), RT | RD | RE},
+ [insn_dsrl32] = {M(spec_op, 0, 0, 0, 0, dsrl32_op), RT | RD | RE},
+ [insn_dsrlv] = {M(spec_op, 0, 0, 0, 0, dsrlv_op), RS | RT | RD},
+ [insn_dsubu] = {M(spec_op, 0, 0, 0, 0, dsubu_op), RS | RT | RD},
+ [insn_eret] = {M(cop0_op, cop_op, 0, 0, 0, eret_op), 0},
+ [insn_ext] = {M(spec3_op, 0, 0, 0, 0, ext_op), RS | RT | RD | RE},
+ [insn_ins] = {M(spec3_op, 0, 0, 0, 0, ins_op), RS | RT | RD | RE},
+ [insn_j] = {M(j_op, 0, 0, 0, 0, 0), JIMM},
+ [insn_jal] = {M(jal_op, 0, 0, 0, 0, 0), JIMM},
+ [insn_jalr] = {M(spec_op, 0, 0, 0, 0, jalr_op), RS | RD},
#ifndef CONFIG_CPU_MIPSR6
- { insn_jr, M(spec_op, 0, 0, 0, 0, jr_op), RS },
+ [insn_jr] = {M(spec_op, 0, 0, 0, 0, jr_op), RS},
#else
- { insn_jr, M(spec_op, 0, 0, 0, 0, jalr_op), RS },
+ [insn_jr] = {M(spec_op, 0, 0, 0, 0, jalr_op), RS},
#endif
- { insn_lb, M(lb_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
- { insn_ld, M(ld_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
- { insn_ldx, M(spec3_op, 0, 0, 0, ldx_op, lx_op), RS | RT | RD },
- { insn_lh, M(lh_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
- { insn_lhu, M(lhu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
+ [insn_lb] = {M(lb_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+ [insn_lbu] = {M(lbu_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+ [insn_ld] = {M(ld_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+ [insn_lddir] = {M(lwc2_op, 0, 0, 0, lddir_op, mult_op), RS | RT | RD},
+ [insn_ldpte] = {M(lwc2_op, 0, 0, 0, ldpte_op, mult_op), RS | RD},
+ [insn_ldx] = {M(spec3_op, 0, 0, 0, ldx_op, lx_op), RS | RT | RD},
+ [insn_lh] = {M(lh_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+ [insn_lhu] = {M(lhu_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
#ifndef CONFIG_CPU_MIPSR6
- { insn_lld, M(lld_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
- { insn_ll, M(ll_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
+ [insn_ll] = {M(ll_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+ [insn_lld] = {M(lld_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
#else
- { insn_lld, M6(spec3_op, 0, 0, 0, lld6_op), RS | RT | SIMM9 },
- { insn_ll, M6(spec3_op, 0, 0, 0, ll6_op), RS | RT | SIMM9 },
+ [insn_ll] = {M6(spec3_op, 0, 0, 0, ll6_op), RS | RT | SIMM9},
+ [insn_lld] = {M6(spec3_op, 0, 0, 0, lld6_op), RS | RT | SIMM9},
#endif
- { insn_lui, M(lui_op, 0, 0, 0, 0, 0), RT | SIMM },
- { insn_lw, M(lw_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
- { insn_lwx, M(spec3_op, 0, 0, 0, lwx_op, lx_op), RS | RT | RD },
- { insn_mfc0, M(cop0_op, mfc_op, 0, 0, 0, 0), RT | RD | SET},
- { insn_mfhc0, M(cop0_op, mfhc0_op, 0, 0, 0, 0), RT | RD | SET},
- { insn_mfhi, M(spec_op, 0, 0, 0, 0, mfhi_op), RD },
- { insn_mflo, M(spec_op, 0, 0, 0, 0, mflo_op), RD },
- { insn_mtc0, M(cop0_op, mtc_op, 0, 0, 0, 0), RT | RD | SET},
- { insn_mthc0, M(cop0_op, mthc0_op, 0, 0, 0, 0), RT | RD | SET},
- { insn_mthi, M(spec_op, 0, 0, 0, 0, mthi_op), RS },
- { insn_mtlo, M(spec_op, 0, 0, 0, 0, mtlo_op), RS },
+ [insn_lui] = {M(lui_op, 0, 0, 0, 0, 0), RT | SIMM},
+ [insn_lw] = {M(lw_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+ [insn_lwu] = {M(lwu_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+ [insn_lwx] = {M(spec3_op, 0, 0, 0, lwx_op, lx_op), RS | RT | RD},
+ [insn_mfc0] = {M(cop0_op, mfc_op, 0, 0, 0, 0), RT | RD | SET},
+ [insn_mfhc0] = {M(cop0_op, mfhc0_op, 0, 0, 0, 0), RT | RD | SET},
+ [insn_mfhi] = {M(spec_op, 0, 0, 0, 0, mfhi_op), RD},
+ [insn_mflo] = {M(spec_op, 0, 0, 0, 0, mflo_op), RD},
+ [insn_movn] = {M(spec_op, 0, 0, 0, 0, movn_op), RS | RT | RD},
+ [insn_movz] = {M(spec_op, 0, 0, 0, 0, movz_op), RS | RT | RD},
+ [insn_mtc0] = {M(cop0_op, mtc_op, 0, 0, 0, 0), RT | RD | SET},
+ [insn_mthc0] = {M(cop0_op, mthc0_op, 0, 0, 0, 0), RT | RD | SET},
+ [insn_mthi] = {M(spec_op, 0, 0, 0, 0, mthi_op), RS},
+ [insn_mtlo] = {M(spec_op, 0, 0, 0, 0, mtlo_op), RS},
#ifndef CONFIG_CPU_MIPSR6
- { insn_mul, M(spec2_op, 0, 0, 0, 0, mul_op), RS | RT | RD},
+ [insn_mul] = {M(spec2_op, 0, 0, 0, 0, mul_op), RS | RT | RD},
#else
- { insn_mul, M(spec_op, 0, 0, 0, mult_mul_op, mult_op), RS | RT | RD},
+ [insn_mul] = {M(spec_op, 0, 0, 0, mult_mul_op, mult_op), RS | RT | RD},
#endif
- { insn_ori, M(ori_op, 0, 0, 0, 0, 0), RS | RT | UIMM },
- { insn_or, M(spec_op, 0, 0, 0, 0, or_op), RS | RT | RD },
+ [insn_multu] = {M(spec_op, 0, 0, 0, 0, multu_op), RS | RT},
+ [insn_nor] = {M(spec_op, 0, 0, 0, 0, nor_op), RS | RT | RD},
+ [insn_or] = {M(spec_op, 0, 0, 0, 0, or_op), RS | RT | RD},
+ [insn_ori] = {M(ori_op, 0, 0, 0, 0, 0), RS | RT | UIMM},
#ifndef CONFIG_CPU_MIPSR6
- { insn_pref, M(pref_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
+ [insn_pref] = {M(pref_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
#else
- { insn_pref, M6(spec3_op, 0, 0, 0, pref6_op), RS | RT | SIMM9 },
+ [insn_pref] = {M6(spec3_op, 0, 0, 0, pref6_op), RS | RT | SIMM9},
#endif
- { insn_rfe, M(cop0_op, cop_op, 0, 0, 0, rfe_op), 0 },
- { insn_rotr, M(spec_op, 1, 0, 0, 0, srl_op), RT | RD | RE },
+ [insn_rfe] = {M(cop0_op, cop_op, 0, 0, 0, rfe_op), 0},
+ [insn_rotr] = {M(spec_op, 1, 0, 0, 0, srl_op), RT | RD | RE},
+ [insn_sb] = {M(sb_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
#ifndef CONFIG_CPU_MIPSR6
- { insn_scd, M(scd_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
- { insn_sc, M(sc_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
+ [insn_sc] = {M(sc_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+ [insn_scd] = {M(scd_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
#else
- { insn_scd, M6(spec3_op, 0, 0, 0, scd6_op), RS | RT | SIMM9 },
- { insn_sc, M6(spec3_op, 0, 0, 0, sc6_op), RS | RT | SIMM9 },
+ [insn_sc] = {M6(spec3_op, 0, 0, 0, sc6_op), RS | RT | SIMM9},
+ [insn_scd] = {M6(spec3_op, 0, 0, 0, scd6_op), RS | RT | SIMM9},
#endif
- { insn_sd, M(sd_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
- { insn_sll, M(spec_op, 0, 0, 0, 0, sll_op), RT | RD | RE },
- { insn_sllv, M(spec_op, 0, 0, 0, 0, sllv_op), RS | RT | RD },
- { insn_slt, M(spec_op, 0, 0, 0, 0, slt_op), RS | RT | RD },
- { insn_sltiu, M(sltiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
- { insn_sltu, M(spec_op, 0, 0, 0, 0, sltu_op), RS | RT | RD },
- { insn_sra, M(spec_op, 0, 0, 0, 0, sra_op), RT | RD | RE },
- { insn_srl, M(spec_op, 0, 0, 0, 0, srl_op), RT | RD | RE },
- { insn_srlv, M(spec_op, 0, 0, 0, 0, srlv_op), RS | RT | RD },
- { insn_subu, M(spec_op, 0, 0, 0, 0, subu_op), RS | RT | RD },
- { insn_sw, M(sw_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
- { insn_sync, M(spec_op, 0, 0, 0, 0, sync_op), RE },
- { insn_syscall, M(spec_op, 0, 0, 0, 0, syscall_op), SCIMM},
- { insn_tlbp, M(cop0_op, cop_op, 0, 0, 0, tlbp_op), 0 },
- { insn_tlbr, M(cop0_op, cop_op, 0, 0, 0, tlbr_op), 0 },
- { insn_tlbwi, M(cop0_op, cop_op, 0, 0, 0, tlbwi_op), 0 },
- { insn_tlbwr, M(cop0_op, cop_op, 0, 0, 0, tlbwr_op), 0 },
- { insn_wait, M(cop0_op, cop_op, 0, 0, 0, wait_op), SCIMM },
- { insn_wsbh, M(spec3_op, 0, 0, 0, wsbh_op, bshfl_op), RT | RD },
- { insn_xori, M(xori_op, 0, 0, 0, 0, 0), RS | RT | UIMM },
- { insn_xor, M(spec_op, 0, 0, 0, 0, xor_op), RS | RT | RD },
- { insn_yield, M(spec3_op, 0, 0, 0, 0, yield_op), RS | RD },
- { insn_ldpte, M(lwc2_op, 0, 0, 0, ldpte_op, mult_op), RS | RD },
- { insn_lddir, M(lwc2_op, 0, 0, 0, lddir_op, mult_op), RS | RT | RD },
- { insn_invalid, 0, 0 }
+ [insn_sd] = {M(sd_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+ [insn_sh] = {M(sh_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+ [insn_sll] = {M(spec_op, 0, 0, 0, 0, sll_op), RT | RD | RE},
+ [insn_sllv] = {M(spec_op, 0, 0, 0, 0, sllv_op), RS | RT | RD},
+ [insn_slt] = {M(spec_op, 0, 0, 0, 0, slt_op), RS | RT | RD},
+ [insn_slti] = {M(slti_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+ [insn_sltiu] = {M(sltiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+ [insn_sltu] = {M(spec_op, 0, 0, 0, 0, sltu_op), RS | RT | RD},
+ [insn_sra] = {M(spec_op, 0, 0, 0, 0, sra_op), RT | RD | RE},
+ [insn_srl] = {M(spec_op, 0, 0, 0, 0, srl_op), RT | RD | RE},
+ [insn_srlv] = {M(spec_op, 0, 0, 0, 0, srlv_op), RS | RT | RD},
+ [insn_subu] = {M(spec_op, 0, 0, 0, 0, subu_op), RS | RT | RD},
+ [insn_sw] = {M(sw_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+ [insn_sync] = {M(spec_op, 0, 0, 0, 0, sync_op), RE},
+ [insn_syscall] = {M(spec_op, 0, 0, 0, 0, syscall_op), SCIMM},
+ [insn_tlbp] = {M(cop0_op, cop_op, 0, 0, 0, tlbp_op), 0},
+ [insn_tlbr] = {M(cop0_op, cop_op, 0, 0, 0, tlbr_op), 0},
+ [insn_tlbwi] = {M(cop0_op, cop_op, 0, 0, 0, tlbwi_op), 0},
+ [insn_tlbwr] = {M(cop0_op, cop_op, 0, 0, 0, tlbwr_op), 0},
+ [insn_wait] = {M(cop0_op, cop_op, 0, 0, 0, wait_op), SCIMM},
+ [insn_wsbh] = {M(spec3_op, 0, 0, 0, wsbh_op, bshfl_op), RT | RD},
+ [insn_xor] = {M(spec_op, 0, 0, 0, 0, xor_op), RS | RT | RD},
+ [insn_xori] = {M(xori_op, 0, 0, 0, 0, 0), RS | RT | UIMM},
+ [insn_yield] = {M(spec3_op, 0, 0, 0, 0, yield_op), RS | RD},
};
#undef M
@@ -196,20 +215,17 @@ static inline u32 build_jimm(u32 arg)
*/
static void build_insn(u32 **buf, enum opcode opc, ...)
{
- struct insn *ip = NULL;
- unsigned int i;
+ const struct insn *ip;
va_list ap;
u32 op;
- for (i = 0; insn_table[i].opcode != insn_invalid; i++)
- if (insn_table[i].opcode == opc) {
- ip = &insn_table[i];
- break;
- }
-
- if (!ip || (opc == insn_daddiu && r4k_daddiu_bug()))
+ if (opc < 0 || opc >= insn_invalid ||
+ (opc == insn_daddiu && r4k_daddiu_bug()) ||
+ (insn_table[opc].match == 0 && insn_table[opc].fields == 0))
panic("Unsupported Micro-assembler instruction %d", opc);
+ ip = &insn_table[opc];
+
op = ip->match;
va_start(ap, opc);
if (ip->fields & RS)
diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c
index 730363b59bac..57570c0649b4 100644
--- a/arch/mips/mm/uasm.c
+++ b/arch/mips/mm/uasm.c
@@ -46,26 +46,29 @@ enum fields {
#define SIMM9_MASK 0x1ff
enum opcode {
- insn_invalid,
insn_addiu, insn_addu, insn_and, insn_andi, insn_bbit0, insn_bbit1,
- insn_beq, insn_beql, insn_bgez, insn_bgezl, insn_bltz, insn_bltzl,
- insn_bne, insn_cache, insn_cfc1, insn_cfcmsa, insn_ctc1, insn_ctcmsa,
- insn_daddiu, insn_daddu, insn_di, insn_dins, insn_dinsm, insn_divu,
- insn_dmfc0, insn_dmtc0, insn_drotr, insn_drotr32, insn_dsll,
- insn_dsll32, insn_dsra, insn_dsrl, insn_dsrl32, insn_dsubu, insn_eret,
- insn_ext, insn_ins, insn_j, insn_jal, insn_jalr, insn_jr, insn_lb,
- insn_ld, insn_ldx, insn_lh, insn_ll, insn_lld, insn_lui, insn_lw,
- insn_lwx, insn_mfc0, insn_mfhc0, insn_mfhi, insn_mflo, insn_mtc0,
- insn_mthc0, insn_mthi, insn_mtlo, insn_mul, insn_or, insn_ori,
- insn_pref, insn_rfe, insn_rotr, insn_sc, insn_scd, insn_sd, insn_sll,
- insn_sllv, insn_slt, insn_sltiu, insn_sltu, insn_sra, insn_srl,
+ insn_beq, insn_beql, insn_bgez, insn_bgezl, insn_bgtz, insn_blez,
+ insn_bltz, insn_bltzl, insn_bne, insn_break, insn_cache, insn_cfc1,
+ insn_cfcmsa, insn_ctc1, insn_ctcmsa, insn_daddiu, insn_daddu, insn_ddivu,
+ insn_di, insn_dins, insn_dinsm, insn_dinsu, insn_divu, insn_dmfc0,
+ insn_dmtc0, insn_dmultu, insn_drotr, insn_drotr32, insn_dsbh, insn_dshd,
+ insn_dsll, insn_dsll32, insn_dsllv, insn_dsra, insn_dsra32, insn_dsrav,
+ insn_dsrl, insn_dsrl32, insn_dsrlv, insn_dsubu, insn_eret, insn_ext,
+ insn_ins, insn_j, insn_jal, insn_jalr, insn_jr, insn_lb, insn_lbu,
+ insn_ld, insn_lddir, insn_ldpte, insn_ldx, insn_lh, insn_lhu,
+ insn_ll, insn_lld, insn_lui, insn_lw, insn_lwu, insn_lwx, insn_mfc0,
+ insn_mfhc0, insn_mfhi, insn_mflo, insn_movn, insn_movz, insn_mtc0,
+ insn_mthc0, insn_mthi, insn_mtlo, insn_mul, insn_multu, insn_nor,
+ insn_or, insn_ori, insn_pref, insn_rfe, insn_rotr, insn_sb,
+ insn_sc, insn_scd, insn_sd, insn_sh, insn_sll, insn_sllv,
+ insn_slt, insn_slti, insn_sltiu, insn_sltu, insn_sra, insn_srl,
insn_srlv, insn_subu, insn_sw, insn_sync, insn_syscall, insn_tlbp,
insn_tlbr, insn_tlbwi, insn_tlbwr, insn_wait, insn_wsbh, insn_xor,
- insn_xori, insn_yield, insn_lddir, insn_ldpte, insn_lhu,
+ insn_xori, insn_yield,
+ insn_invalid /* insn_invalid must be last */
};
struct insn {
- enum opcode opcode;
u32 match;
enum fields fields;
};
@@ -215,6 +218,13 @@ Ip_u2u1msbu3(op) \
} \
UASM_EXPORT_SYMBOL(uasm_i##op);
+#define I_u2u1msb32msb3(op) \
+Ip_u2u1msbu3(op) \
+{ \
+ build_insn(buf, insn##op, b, a, c+d-33, c-32); \
+} \
+UASM_EXPORT_SYMBOL(uasm_i##op);
+
#define I_u2u1msbdu3(op) \
Ip_u2u1msbu3(op) \
{ \
@@ -265,25 +275,36 @@ I_u1u2s3(_beq)
I_u1u2s3(_beql)
I_u1s2(_bgez)
I_u1s2(_bgezl)
+I_u1s2(_bgtz)
+I_u1s2(_blez)
I_u1s2(_bltz)
I_u1s2(_bltzl)
I_u1u2s3(_bne)
+I_u1(_break)
I_u2s3u1(_cache)
I_u1u2(_cfc1)
I_u2u1(_cfcmsa)
I_u1u2(_ctc1)
I_u2u1(_ctcmsa)
+I_u1u2(_ddivu)
I_u1u2u3(_dmfc0)
I_u1u2u3(_dmtc0)
+I_u1u2(_dmultu)
I_u2u1s3(_daddiu)
I_u3u1u2(_daddu)
I_u1(_di);
I_u1u2(_divu)
+I_u2u1(_dsbh);
+I_u2u1(_dshd);
I_u2u1u3(_dsll)
I_u2u1u3(_dsll32)
+I_u3u2u1(_dsllv)
I_u2u1u3(_dsra)
+I_u2u1u3(_dsra32)
+I_u3u2u1(_dsrav)
I_u2u1u3(_dsrl)
I_u2u1u3(_dsrl32)
+I_u3u2u1(_dsrlv)
I_u2u1u3(_drotr)
I_u2u1u3(_drotr32)
I_u3u1u2(_dsubu)
@@ -295,6 +316,7 @@ I_u1(_jal)
I_u2u1(_jalr)
I_u1(_jr)
I_u2s3u1(_lb)
+I_u2s3u1(_lbu)
I_u2s3u1(_ld)
I_u2s3u1(_lh)
I_u2s3u1(_lhu)
@@ -302,8 +324,11 @@ I_u2s3u1(_ll)
I_u2s3u1(_lld)
I_u1s2(_lui)
I_u2s3u1(_lw)
+I_u2s3u1(_lwu)
I_u1u2u3(_mfc0)
I_u1u2u3(_mfhc0)
+I_u3u1u2(_movn)
+I_u3u1u2(_movz)
I_u1(_mfhi)
I_u1(_mflo)
I_u1u2u3(_mtc0)
@@ -311,15 +336,20 @@ I_u1u2u3(_mthc0)
I_u1(_mthi)
I_u1(_mtlo)
I_u3u1u2(_mul)
-I_u2u1u3(_ori)
+I_u1u2(_multu)
+I_u3u1u2(_nor)
I_u3u1u2(_or)
+I_u2u1u3(_ori)
I_0(_rfe)
+I_u2s3u1(_sb)
I_u2s3u1(_sc)
I_u2s3u1(_scd)
I_u2s3u1(_sd)
+I_u2s3u1(_sh)
I_u2u1u3(_sll)
I_u3u2u1(_sllv)
I_s3s1s2(_slt)
+I_u2u1s3(_slti)
I_u2u1s3(_sltiu)
I_u3u1u2(_sltu)
I_u2u1u3(_sra)
@@ -340,6 +370,7 @@ I_u2u1u3(_xori)
I_u2u1(_yield)
I_u2u1msbu3(_dins);
I_u2u1msb32u3(_dinsm);
+I_u2u1msb32msb3(_dinsu);
I_u1(_syscall);
I_u1u2s3(_bbit0);
I_u1u2s3(_bbit1);
diff --git a/arch/mips/mti-malta/malta-dtshim.c b/arch/mips/mti-malta/malta-dtshim.c
index c398582c316f..a6699c15277d 100644
--- a/arch/mips/mti-malta/malta-dtshim.c
+++ b/arch/mips/mti-malta/malta-dtshim.c
@@ -18,7 +18,7 @@
#include <asm/fw/fw.h>
#include <asm/mips-boards/generic.h>
#include <asm/mips-boards/malta.h>
-#include <asm/mips-cm.h>
+#include <asm/mips-cps.h>
#include <asm/page.h>
#define ROCIT_REG_BASE 0x1f403000
@@ -236,7 +236,7 @@ static void __init remove_gic(void *fdt)
/* if we have a CM which reports a GIC is present, leave the DT alone */
err = mips_cm_probe();
- if (!err && (read_gcr_gic_status() & CM_GCR_GIC_STATUS_GICEX_MSK))
+ if (!err && (read_gcr_gic_status() & CM_GCR_GIC_STATUS_EX))
return;
if (malta_scon() == MIPS_REVISION_SCON_ROCIT) {
diff --git a/arch/mips/mti-malta/malta-init.c b/arch/mips/mti-malta/malta-init.c
index 0f3b881a3190..009f2918b320 100644
--- a/arch/mips/mti-malta/malta-init.c
+++ b/arch/mips/mti-malta/malta-init.c
@@ -21,8 +21,7 @@
#include <asm/smp-ops.h>
#include <asm/traps.h>
#include <asm/fw/fw.h>
-#include <asm/mips-cm.h>
-#include <asm/mips-cpc.h>
+#include <asm/mips-cps.h>
#include <asm/mips-boards/generic.h>
#include <asm/mips-boards/malta.h>
diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c
index b0f9b188e833..a840e0c1642c 100644
--- a/arch/mips/mti-malta/malta-int.c
+++ b/arch/mips/mti-malta/malta-int.c
@@ -19,7 +19,6 @@
#include <linux/smp.h>
#include <linux/interrupt.h>
#include <linux/io.h>
-#include <linux/irqchip/mips-gic.h>
#include <linux/of_irq.h>
#include <linux/kernel_stat.h>
#include <linux/kernel.h>
@@ -29,9 +28,9 @@
#include <asm/i8259.h>
#include <asm/irq_cpu.h>
#include <asm/irq_regs.h>
-#include <asm/mips-cm.h>
#include <asm/mips-boards/malta.h>
#include <asm/mips-boards/maltaint.h>
+#include <asm/mips-cps.h>
#include <asm/gt64120.h>
#include <asm/mips-boards/generic.h>
#include <asm/mips-boards/msc01_pci.h>
@@ -215,7 +214,7 @@ void __init arch_init_irq(void)
msc_nr_irqs);
}
- if (gic_present) {
+ if (mips_gic_present()) {
corehi_irq = MIPS_CPU_IRQ_BASE + MIPSCPU_INT_COREHI;
} else if (cpu_has_veic) {
set_vi_handler(MSC01E_INT_COREHI, corehi_irqdispatch);
diff --git a/arch/mips/mti-malta/malta-setup.c b/arch/mips/mti-malta/malta-setup.c
index a01d5debfcaf..de34adb76157 100644
--- a/arch/mips/mti-malta/malta-setup.c
+++ b/arch/mips/mti-malta/malta-setup.c
@@ -28,7 +28,7 @@
#include <asm/fw/fw.h>
#include <asm/mach-malta/malta-dtshim.h>
-#include <asm/mips-cm.h>
+#include <asm/mips-cps.h>
#include <asm/mips-boards/generic.h>
#include <asm/mips-boards/malta.h>
#include <asm/mips-boards/maltaint.h>
@@ -128,7 +128,7 @@ static int __init plat_enable_iocoherency(void)
BONITO_PCIMEMBASECFG_MEMBASE1_CACHED);
pr_info("Enabled Bonito IOBC coherency\n");
}
- } else if (mips_cm_numiocu() != 0) {
+ } else if (mips_cps_numiocu(0) != 0) {
/* Nothing special needs to be done to enable coherency */
pr_info("CMP IOCU detected\n");
cfg = __raw_readl((u32 *)CKSEG1ADDR(ROCIT_CONFIG_GEN0));
diff --git a/arch/mips/mti-malta/malta-time.c b/arch/mips/mti-malta/malta-time.c
index 289edcfadd7c..66c866740ff2 100644
--- a/arch/mips/mti-malta/malta-time.c
+++ b/arch/mips/mti-malta/malta-time.c
@@ -26,7 +26,6 @@
#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
-#include <linux/irqchip/mips-gic.h>
#include <linux/timex.h>
#include <linux/mc146818rtc.h>
@@ -40,6 +39,7 @@
#include <asm/time.h>
#include <asm/mc146818-time.h>
#include <asm/msc01_ic.h>
+#include <asm/mips-cps.h>
#include <asm/mips-boards/generic.h>
#include <asm/mips-boards/maltaint.h>
@@ -85,8 +85,8 @@ static void __init estimate_frequencies(void)
local_irq_save(flags);
- if (gic_present)
- gic_start_count();
+ if (mips_gic_present())
+ clear_gic_config(GIC_CONFIG_COUNTSTOP);
/*
* Read counters exactly on rising edge of update flag.
@@ -95,8 +95,8 @@ static void __init estimate_frequencies(void)
while (CMOS_READ(RTC_REG_A) & RTC_UIP);
while (!(CMOS_READ(RTC_REG_A) & RTC_UIP));
start = read_c0_count();
- if (gic_present)
- gicstart = gic_read_count();
+ if (mips_gic_present())
+ gicstart = read_gic_counter();
/* Wait for falling edge before reading RTC. */
while (CMOS_READ(RTC_REG_A) & RTC_UIP);
@@ -105,8 +105,8 @@ static void __init estimate_frequencies(void)
/* Read counters again exactly on rising edge of update flag. */
while (!(CMOS_READ(RTC_REG_A) & RTC_UIP));
count = read_c0_count();
- if (gic_present)
- giccount = gic_read_count();
+ if (mips_gic_present())
+ giccount = read_gic_counter();
/* Wait for falling edge before reading RTC again. */
while (CMOS_READ(RTC_REG_A) & RTC_UIP);
@@ -128,7 +128,7 @@ static void __init estimate_frequencies(void)
count /= secs;
mips_hpt_frequency = count;
- if (gic_present) {
+ if (mips_gic_present()) {
giccount = div_u64(giccount - gicstart, secs);
gic_frequency = giccount;
}
@@ -154,7 +154,7 @@ int get_c0_fdc_int(void)
if (cpu_has_veic)
return -1;
- else if (gic_present)
+ else if (mips_gic_present())
return gic_get_c0_fdc_int();
else if (cp0_fdc_irq >= 0)
return MIPS_CPU_IRQ_BASE + cp0_fdc_irq;
@@ -167,7 +167,7 @@ int get_c0_perfcount_int(void)
if (cpu_has_veic) {
set_vi_handler(MSC01E_INT_PERFCTR, mips_perf_dispatch);
mips_cpu_perf_irq = MSC01E_INT_BASE + MSC01E_INT_PERFCTR;
- } else if (gic_present) {
+ } else if (mips_gic_present()) {
mips_cpu_perf_irq = gic_get_c0_perfcount_int();
} else if (cp0_perfcount_irq >= 0) {
mips_cpu_perf_irq = MIPS_CPU_IRQ_BASE + cp0_perfcount_irq;
@@ -184,7 +184,7 @@ unsigned int get_c0_compare_int(void)
if (cpu_has_veic) {
set_vi_handler(MSC01E_INT_CPUCTR, mips_timer_dispatch);
mips_cpu_timer_irq = MSC01E_INT_BASE + MSC01E_INT_CPUCTR;
- } else if (gic_present) {
+ } else if (mips_gic_present()) {
mips_cpu_timer_irq = gic_get_c0_compare_int();
} else {
mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq;
@@ -258,15 +258,13 @@ void __init plat_time_init(void)
setup_pit_timer();
#endif
-#ifdef CONFIG_MIPS_GIC
- if (gic_present) {
+ if (mips_gic_present()) {
freq = freqround(gic_frequency, 5000);
printk("GIC frequency %d.%02d MHz\n", freq/1000000,
(freq%1000000)*100/1000000);
#ifdef CONFIG_CLKSRC_MIPS_GIC
update_gic_frequency_dt();
- clocksource_probe();
+ timer_probe();
#endif
}
-#endif
}
diff --git a/arch/mips/net/Makefile b/arch/mips/net/Makefile
index 8c2771401f54..47d678416715 100644
--- a/arch/mips/net/Makefile
+++ b/arch/mips/net/Makefile
@@ -1,3 +1,4 @@
# MIPS networking code
-obj-$(CONFIG_BPF_JIT) += bpf_jit.o bpf_jit_asm.o
+obj-$(CONFIG_MIPS_CBPF_JIT) += bpf_jit.o bpf_jit_asm.o
+obj-$(CONFIG_MIPS_EBPF_JIT) += ebpf_jit.o
diff --git a/arch/mips/net/ebpf_jit.c b/arch/mips/net/ebpf_jit.c
new file mode 100644
index 000000000000..01b7a87ea678
--- /dev/null
+++ b/arch/mips/net/ebpf_jit.c
@@ -0,0 +1,1995 @@
+/*
+ * Just-In-Time compiler for eBPF filters on MIPS
+ *
+ * Copyright (c) 2017 Cavium, Inc.
+ *
+ * Based on code from:
+ *
+ * Copyright (c) 2014 Imagination Technologies Ltd.
+ * Author: Markos Chandras <markos.chandras@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License.
+ */
+
+#include <linux/bitops.h>
+#include <linux/errno.h>
+#include <linux/filter.h>
+#include <linux/bpf.h>
+#include <linux/slab.h>
+#include <asm/bitops.h>
+#include <asm/byteorder.h>
+#include <asm/cacheflush.h>
+#include <asm/cpu-features.h>
+#include <asm/uasm.h>
+
+/* Registers used by JIT */
+#define MIPS_R_ZERO 0
+#define MIPS_R_AT 1
+#define MIPS_R_V0 2 /* BPF_R0 */
+#define MIPS_R_V1 3
+#define MIPS_R_A0 4 /* BPF_R1 */
+#define MIPS_R_A1 5 /* BPF_R2 */
+#define MIPS_R_A2 6 /* BPF_R3 */
+#define MIPS_R_A3 7 /* BPF_R4 */
+#define MIPS_R_A4 8 /* BPF_R5 */
+#define MIPS_R_T4 12 /* BPF_AX */
+#define MIPS_R_T5 13
+#define MIPS_R_T6 14
+#define MIPS_R_T7 15
+#define MIPS_R_S0 16 /* BPF_R6 */
+#define MIPS_R_S1 17 /* BPF_R7 */
+#define MIPS_R_S2 18 /* BPF_R8 */
+#define MIPS_R_S3 19 /* BPF_R9 */
+#define MIPS_R_S4 20 /* BPF_TCC */
+#define MIPS_R_S5 21
+#define MIPS_R_S6 22
+#define MIPS_R_S7 23
+#define MIPS_R_T8 24
+#define MIPS_R_T9 25
+#define MIPS_R_SP 29
+#define MIPS_R_RA 31
+
+/* eBPF flags */
+#define EBPF_SAVE_S0 BIT(0)
+#define EBPF_SAVE_S1 BIT(1)
+#define EBPF_SAVE_S2 BIT(2)
+#define EBPF_SAVE_S3 BIT(3)
+#define EBPF_SAVE_S4 BIT(4)
+#define EBPF_SAVE_RA BIT(5)
+#define EBPF_SEEN_FP BIT(6)
+#define EBPF_SEEN_TC BIT(7)
+#define EBPF_TCC_IN_V1 BIT(8)
+
+/*
+ * For the mips64 ISA, we need to track the value range or type for
+ * each JIT register. The BPF machine requires zero extended 32-bit
+ * values, but the mips64 ISA requires sign extended 32-bit values.
+ * At each point in the BPF program we track the state of every
+ * register so that we can zero extend or sign extend as the BPF
+ * semantics require.
+ */
+enum reg_val_type {
+ /* uninitialized */
+ REG_UNKNOWN,
+ /* not known to be 32-bit compatible. */
+ REG_64BIT,
+ /* 32-bit compatible, no truncation needed for 64-bit ops. */
+ REG_64BIT_32BIT,
+ /* 32-bit compatible, need truncation for 64-bit ops. */
+ REG_32BIT,
+ /* 32-bit zero extended. */
+ REG_32BIT_ZERO_EX,
+ /* 32-bit no sign/zero extension needed. */
+ REG_32BIT_POS
+};
+
+/*
+ * high bit of offsets indicates if long branch conversion done at
+ * this insn.
+ */
+#define OFFSETS_B_CONV BIT(31)
+
+/**
+ * struct jit_ctx - JIT context
+ * @skf: The sk_filter
+ * @stack_size: eBPF stack size
+ * @tmp_offset: eBPF $sp offset to 8-byte temporary memory
+ * @idx: Instruction index
+ * @flags: JIT flags
+ * @offsets: Instruction offsets
+ * @target: Memory location for the compiled filter
+ * @reg_val_types Packed enum reg_val_type for each register.
+ */
+struct jit_ctx {
+ const struct bpf_prog *skf;
+ int stack_size;
+ int tmp_offset;
+ u32 idx;
+ u32 flags;
+ u32 *offsets;
+ u32 *target;
+ u64 *reg_val_types;
+ unsigned int long_b_conversion:1;
+ unsigned int gen_b_offsets:1;
+ unsigned int use_bbit_insns:1;
+};
+
+static void set_reg_val_type(u64 *rvt, int reg, enum reg_val_type type)
+{
+ *rvt &= ~(7ull << (reg * 3));
+ *rvt |= ((u64)type << (reg * 3));
+}
+
+static enum reg_val_type get_reg_val_type(const struct jit_ctx *ctx,
+ int index, int reg)
+{
+ return (ctx->reg_val_types[index] >> (reg * 3)) & 7;
+}
+
+/* Simply emit the instruction if the JIT memory space has been allocated */
+#define emit_instr(ctx, func, ...) \
+do { \
+ if ((ctx)->target != NULL) { \
+ u32 *p = &(ctx)->target[ctx->idx]; \
+ uasm_i_##func(&p, ##__VA_ARGS__); \
+ } \
+ (ctx)->idx++; \
+} while (0)
+
+static unsigned int j_target(struct jit_ctx *ctx, int target_idx)
+{
+ unsigned long target_va, base_va;
+ unsigned int r;
+
+ if (!ctx->target)
+ return 0;
+
+ base_va = (unsigned long)ctx->target;
+ target_va = base_va + (ctx->offsets[target_idx] & ~OFFSETS_B_CONV);
+
+ if ((base_va & ~0x0ffffffful) != (target_va & ~0x0ffffffful))
+ return (unsigned int)-1;
+ r = target_va & 0x0ffffffful;
+ return r;
+}
+
+/* Compute the immediate value for PC-relative branches. */
+static u32 b_imm(unsigned int tgt, struct jit_ctx *ctx)
+{
+ if (!ctx->gen_b_offsets)
+ return 0;
+
+ /*
+ * We want a pc-relative branch. tgt is the instruction offset
+ * we want to jump to.
+
+ * Branch on MIPS:
+ * I: target_offset <- sign_extend(offset)
+ * I+1: PC += target_offset (delay slot)
+ *
+ * ctx->idx currently points to the branch instruction
+ * but the offset is added to the delay slot so we need
+ * to subtract 4.
+ */
+ return (ctx->offsets[tgt] & ~OFFSETS_B_CONV) -
+ (ctx->idx * 4) - 4;
+}
+
+int bpf_jit_enable __read_mostly;
+
+enum which_ebpf_reg {
+ src_reg,
+ src_reg_no_fp,
+ dst_reg,
+ dst_reg_fp_ok
+};
+
+/*
+ * For eBPF, the register mapping naturally falls out of the
+ * requirements of eBPF and the MIPS n64 ABI. We don't maintain a
+ * separate frame pointer, so BPF_REG_10 relative accesses are
+ * adjusted to be $sp relative.
+ */
+int ebpf_to_mips_reg(struct jit_ctx *ctx, const struct bpf_insn *insn,
+ enum which_ebpf_reg w)
+{
+ int ebpf_reg = (w == src_reg || w == src_reg_no_fp) ?
+ insn->src_reg : insn->dst_reg;
+
+ switch (ebpf_reg) {
+ case BPF_REG_0:
+ return MIPS_R_V0;
+ case BPF_REG_1:
+ return MIPS_R_A0;
+ case BPF_REG_2:
+ return MIPS_R_A1;
+ case BPF_REG_3:
+ return MIPS_R_A2;
+ case BPF_REG_4:
+ return MIPS_R_A3;
+ case BPF_REG_5:
+ return MIPS_R_A4;
+ case BPF_REG_6:
+ ctx->flags |= EBPF_SAVE_S0;
+ return MIPS_R_S0;
+ case BPF_REG_7:
+ ctx->flags |= EBPF_SAVE_S1;
+ return MIPS_R_S1;
+ case BPF_REG_8:
+ ctx->flags |= EBPF_SAVE_S2;
+ return MIPS_R_S2;
+ case BPF_REG_9:
+ ctx->flags |= EBPF_SAVE_S3;
+ return MIPS_R_S3;
+ case BPF_REG_10:
+ if (w == dst_reg || w == src_reg_no_fp)
+ goto bad_reg;
+ ctx->flags |= EBPF_SEEN_FP;
+ /*
+ * Needs special handling, return something that
+ * cannot be clobbered just in case.
+ */
+ return MIPS_R_ZERO;
+ case BPF_REG_AX:
+ return MIPS_R_T4;
+ default:
+bad_reg:
+ WARN(1, "Illegal bpf reg: %d\n", ebpf_reg);
+ return -EINVAL;
+ }
+}
+/*
+ * eBPF stack frame will be something like:
+ *
+ * Entry $sp ------> +--------------------------------+
+ * | $ra (optional) |
+ * +--------------------------------+
+ * | $s0 (optional) |
+ * +--------------------------------+
+ * | $s1 (optional) |
+ * +--------------------------------+
+ * | $s2 (optional) |
+ * +--------------------------------+
+ * | $s3 (optional) |
+ * +--------------------------------+
+ * | $s4 (optional) |
+ * +--------------------------------+
+ * | tmp-storage (if $ra saved) |
+ * $sp + tmp_offset --> +--------------------------------+ <--BPF_REG_10
+ * | BPF_REG_10 relative storage |
+ * | MAX_BPF_STACK (optional) |
+ * | . |
+ * | . |
+ * | . |
+ * $sp --------> +--------------------------------+
+ *
+ * If BPF_REG_10 is never referenced, then the MAX_BPF_STACK sized
+ * area is not allocated.
+ */
+static int gen_int_prologue(struct jit_ctx *ctx)
+{
+ int stack_adjust = 0;
+ int store_offset;
+ int locals_size;
+
+ if (ctx->flags & EBPF_SAVE_RA)
+ /*
+ * If RA we are doing a function call and may need
+ * extra 8-byte tmp area.
+ */
+ stack_adjust += 16;
+ if (ctx->flags & EBPF_SAVE_S0)
+ stack_adjust += 8;
+ if (ctx->flags & EBPF_SAVE_S1)
+ stack_adjust += 8;
+ if (ctx->flags & EBPF_SAVE_S2)
+ stack_adjust += 8;
+ if (ctx->flags & EBPF_SAVE_S3)
+ stack_adjust += 8;
+ if (ctx->flags & EBPF_SAVE_S4)
+ stack_adjust += 8;
+
+ BUILD_BUG_ON(MAX_BPF_STACK & 7);
+ locals_size = (ctx->flags & EBPF_SEEN_FP) ? MAX_BPF_STACK : 0;
+
+ stack_adjust += locals_size;
+ ctx->tmp_offset = locals_size;
+
+ ctx->stack_size = stack_adjust;
+
+ /*
+ * First instruction initializes the tail call count (TCC).
+ * On tail call we skip this instruction, and the TCC is
+ * passed in $v1 from the caller.
+ */
+ emit_instr(ctx, daddiu, MIPS_R_V1, MIPS_R_ZERO, MAX_TAIL_CALL_CNT);
+ if (stack_adjust)
+ emit_instr(ctx, daddiu, MIPS_R_SP, MIPS_R_SP, -stack_adjust);
+ else
+ return 0;
+
+ store_offset = stack_adjust - 8;
+
+ if (ctx->flags & EBPF_SAVE_RA) {
+ emit_instr(ctx, sd, MIPS_R_RA, store_offset, MIPS_R_SP);
+ store_offset -= 8;
+ }
+ if (ctx->flags & EBPF_SAVE_S0) {
+ emit_instr(ctx, sd, MIPS_R_S0, store_offset, MIPS_R_SP);
+ store_offset -= 8;
+ }
+ if (ctx->flags & EBPF_SAVE_S1) {
+ emit_instr(ctx, sd, MIPS_R_S1, store_offset, MIPS_R_SP);
+ store_offset -= 8;
+ }
+ if (ctx->flags & EBPF_SAVE_S2) {
+ emit_instr(ctx, sd, MIPS_R_S2, store_offset, MIPS_R_SP);
+ store_offset -= 8;
+ }
+ if (ctx->flags & EBPF_SAVE_S3) {
+ emit_instr(ctx, sd, MIPS_R_S3, store_offset, MIPS_R_SP);
+ store_offset -= 8;
+ }
+ if (ctx->flags & EBPF_SAVE_S4) {
+ emit_instr(ctx, sd, MIPS_R_S4, store_offset, MIPS_R_SP);
+ store_offset -= 8;
+ }
+
+ if ((ctx->flags & EBPF_SEEN_TC) && !(ctx->flags & EBPF_TCC_IN_V1))
+ emit_instr(ctx, daddu, MIPS_R_S4, MIPS_R_V1, MIPS_R_ZERO);
+
+ return 0;
+}
+
+static int build_int_epilogue(struct jit_ctx *ctx, int dest_reg)
+{
+ const struct bpf_prog *prog = ctx->skf;
+ int stack_adjust = ctx->stack_size;
+ int store_offset = stack_adjust - 8;
+ int r0 = MIPS_R_V0;
+
+ if (dest_reg == MIPS_R_RA &&
+ get_reg_val_type(ctx, prog->len, BPF_REG_0) == REG_32BIT_ZERO_EX)
+ /* Don't let zero extended value escape. */
+ emit_instr(ctx, sll, r0, r0, 0);
+
+ if (ctx->flags & EBPF_SAVE_RA) {
+ emit_instr(ctx, ld, MIPS_R_RA, store_offset, MIPS_R_SP);
+ store_offset -= 8;
+ }
+ if (ctx->flags & EBPF_SAVE_S0) {
+ emit_instr(ctx, ld, MIPS_R_S0, store_offset, MIPS_R_SP);
+ store_offset -= 8;
+ }
+ if (ctx->flags & EBPF_SAVE_S1) {
+ emit_instr(ctx, ld, MIPS_R_S1, store_offset, MIPS_R_SP);
+ store_offset -= 8;
+ }
+ if (ctx->flags & EBPF_SAVE_S2) {
+ emit_instr(ctx, ld, MIPS_R_S2, store_offset, MIPS_R_SP);
+ store_offset -= 8;
+ }
+ if (ctx->flags & EBPF_SAVE_S3) {
+ emit_instr(ctx, ld, MIPS_R_S3, store_offset, MIPS_R_SP);
+ store_offset -= 8;
+ }
+ if (ctx->flags & EBPF_SAVE_S4) {
+ emit_instr(ctx, ld, MIPS_R_S4, store_offset, MIPS_R_SP);
+ store_offset -= 8;
+ }
+ emit_instr(ctx, jr, dest_reg);
+
+ if (stack_adjust)
+ emit_instr(ctx, daddiu, MIPS_R_SP, MIPS_R_SP, stack_adjust);
+ else
+ emit_instr(ctx, nop);
+
+ return 0;
+}
+
+static void gen_imm_to_reg(const struct bpf_insn *insn, int reg,
+ struct jit_ctx *ctx)
+{
+ if (insn->imm >= S16_MIN && insn->imm <= S16_MAX) {
+ emit_instr(ctx, addiu, reg, MIPS_R_ZERO, insn->imm);
+ } else {
+ int lower = (s16)(insn->imm & 0xffff);
+ int upper = insn->imm - lower;
+
+ emit_instr(ctx, lui, reg, upper >> 16);
+ emit_instr(ctx, addiu, reg, reg, lower);
+ }
+
+}
+
+static int gen_imm_insn(const struct bpf_insn *insn, struct jit_ctx *ctx,
+ int idx)
+{
+ int upper_bound, lower_bound;
+ int dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+
+ if (dst < 0)
+ return dst;
+
+ switch (BPF_OP(insn->code)) {
+ case BPF_MOV:
+ case BPF_ADD:
+ upper_bound = S16_MAX;
+ lower_bound = S16_MIN;
+ break;
+ case BPF_SUB:
+ upper_bound = -(int)S16_MIN;
+ lower_bound = -(int)S16_MAX;
+ break;
+ case BPF_AND:
+ case BPF_OR:
+ case BPF_XOR:
+ upper_bound = 0xffff;
+ lower_bound = 0;
+ break;
+ case BPF_RSH:
+ case BPF_LSH:
+ case BPF_ARSH:
+ /* Shift amounts are truncated, no need for bounds */
+ upper_bound = S32_MAX;
+ lower_bound = S32_MIN;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /*
+ * Immediate move clobbers the register, so no sign/zero
+ * extension needed.
+ */
+ if (BPF_CLASS(insn->code) == BPF_ALU64 &&
+ BPF_OP(insn->code) != BPF_MOV &&
+ get_reg_val_type(ctx, idx, insn->dst_reg) == REG_32BIT)
+ emit_instr(ctx, dinsu, dst, MIPS_R_ZERO, 32, 32);
+ /* BPF_ALU | BPF_LSH doesn't need separate sign extension */
+ if (BPF_CLASS(insn->code) == BPF_ALU &&
+ BPF_OP(insn->code) != BPF_LSH &&
+ BPF_OP(insn->code) != BPF_MOV &&
+ get_reg_val_type(ctx, idx, insn->dst_reg) != REG_32BIT)
+ emit_instr(ctx, sll, dst, dst, 0);
+
+ if (insn->imm >= lower_bound && insn->imm <= upper_bound) {
+ /* single insn immediate case */
+ switch (BPF_OP(insn->code) | BPF_CLASS(insn->code)) {
+ case BPF_ALU64 | BPF_MOV:
+ emit_instr(ctx, daddiu, dst, MIPS_R_ZERO, insn->imm);
+ break;
+ case BPF_ALU64 | BPF_AND:
+ case BPF_ALU | BPF_AND:
+ emit_instr(ctx, andi, dst, dst, insn->imm);
+ break;
+ case BPF_ALU64 | BPF_OR:
+ case BPF_ALU | BPF_OR:
+ emit_instr(ctx, ori, dst, dst, insn->imm);
+ break;
+ case BPF_ALU64 | BPF_XOR:
+ case BPF_ALU | BPF_XOR:
+ emit_instr(ctx, xori, dst, dst, insn->imm);
+ break;
+ case BPF_ALU64 | BPF_ADD:
+ emit_instr(ctx, daddiu, dst, dst, insn->imm);
+ break;
+ case BPF_ALU64 | BPF_SUB:
+ emit_instr(ctx, daddiu, dst, dst, -insn->imm);
+ break;
+ case BPF_ALU64 | BPF_RSH:
+ emit_instr(ctx, dsrl_safe, dst, dst, insn->imm & 0x3f);
+ break;
+ case BPF_ALU | BPF_RSH:
+ emit_instr(ctx, srl, dst, dst, insn->imm & 0x1f);
+ break;
+ case BPF_ALU64 | BPF_LSH:
+ emit_instr(ctx, dsll_safe, dst, dst, insn->imm & 0x3f);
+ break;
+ case BPF_ALU | BPF_LSH:
+ emit_instr(ctx, sll, dst, dst, insn->imm & 0x1f);
+ break;
+ case BPF_ALU64 | BPF_ARSH:
+ emit_instr(ctx, dsra_safe, dst, dst, insn->imm & 0x3f);
+ break;
+ case BPF_ALU | BPF_ARSH:
+ emit_instr(ctx, sra, dst, dst, insn->imm & 0x1f);
+ break;
+ case BPF_ALU | BPF_MOV:
+ emit_instr(ctx, addiu, dst, MIPS_R_ZERO, insn->imm);
+ break;
+ case BPF_ALU | BPF_ADD:
+ emit_instr(ctx, addiu, dst, dst, insn->imm);
+ break;
+ case BPF_ALU | BPF_SUB:
+ emit_instr(ctx, addiu, dst, dst, -insn->imm);
+ break;
+ default:
+ return -EINVAL;
+ }
+ } else {
+ /* multi insn immediate case */
+ if (BPF_OP(insn->code) == BPF_MOV) {
+ gen_imm_to_reg(insn, dst, ctx);
+ } else {
+ gen_imm_to_reg(insn, MIPS_R_AT, ctx);
+ switch (BPF_OP(insn->code) | BPF_CLASS(insn->code)) {
+ case BPF_ALU64 | BPF_AND:
+ case BPF_ALU | BPF_AND:
+ emit_instr(ctx, and, dst, dst, MIPS_R_AT);
+ break;
+ case BPF_ALU64 | BPF_OR:
+ case BPF_ALU | BPF_OR:
+ emit_instr(ctx, or, dst, dst, MIPS_R_AT);
+ break;
+ case BPF_ALU64 | BPF_XOR:
+ case BPF_ALU | BPF_XOR:
+ emit_instr(ctx, xor, dst, dst, MIPS_R_AT);
+ break;
+ case BPF_ALU64 | BPF_ADD:
+ emit_instr(ctx, daddu, dst, dst, MIPS_R_AT);
+ break;
+ case BPF_ALU64 | BPF_SUB:
+ emit_instr(ctx, dsubu, dst, dst, MIPS_R_AT);
+ break;
+ case BPF_ALU | BPF_ADD:
+ emit_instr(ctx, addu, dst, dst, MIPS_R_AT);
+ break;
+ case BPF_ALU | BPF_SUB:
+ emit_instr(ctx, subu, dst, dst, MIPS_R_AT);
+ break;
+ default:
+ return -EINVAL;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static void * __must_check
+ool_skb_header_pointer(const struct sk_buff *skb, int offset,
+ int len, void *buffer)
+{
+ return skb_header_pointer(skb, offset, len, buffer);
+}
+
+static int size_to_len(const struct bpf_insn *insn)
+{
+ switch (BPF_SIZE(insn->code)) {
+ case BPF_B:
+ return 1;
+ case BPF_H:
+ return 2;
+ case BPF_W:
+ return 4;
+ case BPF_DW:
+ return 8;
+ }
+ return 0;
+}
+
+static void emit_const_to_reg(struct jit_ctx *ctx, int dst, u64 value)
+{
+ if (value >= 0xffffffffffff8000ull || value < 0x8000ull) {
+ emit_instr(ctx, daddiu, dst, MIPS_R_ZERO, (int)value);
+ } else if (value >= 0xffffffff80000000ull ||
+ (value < 0x80000000 && value > 0xffff)) {
+ emit_instr(ctx, lui, dst, (s32)(s16)(value >> 16));
+ emit_instr(ctx, ori, dst, dst, (unsigned int)(value & 0xffff));
+ } else {
+ int i;
+ bool seen_part = false;
+ int needed_shift = 0;
+
+ for (i = 0; i < 4; i++) {
+ u64 part = (value >> (16 * (3 - i))) & 0xffff;
+
+ if (seen_part && needed_shift > 0 && (part || i == 3)) {
+ emit_instr(ctx, dsll_safe, dst, dst, needed_shift);
+ needed_shift = 0;
+ }
+ if (part) {
+ if (i == 0 || (!seen_part && i < 3 && part < 0x8000)) {
+ emit_instr(ctx, lui, dst, (s32)(s16)part);
+ needed_shift = -16;
+ } else {
+ emit_instr(ctx, ori, dst,
+ seen_part ? dst : MIPS_R_ZERO,
+ (unsigned int)part);
+ }
+ seen_part = true;
+ }
+ if (seen_part)
+ needed_shift += 16;
+ }
+ }
+}
+
+static int emit_bpf_tail_call(struct jit_ctx *ctx, int this_idx)
+{
+ int off, b_off;
+
+ ctx->flags |= EBPF_SEEN_TC;
+ /*
+ * if (index >= array->map.max_entries)
+ * goto out;
+ */
+ off = offsetof(struct bpf_array, map.max_entries);
+ emit_instr(ctx, lwu, MIPS_R_T5, off, MIPS_R_A1);
+ emit_instr(ctx, sltu, MIPS_R_AT, MIPS_R_T5, MIPS_R_A2);
+ b_off = b_imm(this_idx + 1, ctx);
+ emit_instr(ctx, bne, MIPS_R_AT, MIPS_R_ZERO, b_off);
+ /*
+ * if (--TCC < 0)
+ * goto out;
+ */
+ /* Delay slot */
+ emit_instr(ctx, daddiu, MIPS_R_T5,
+ (ctx->flags & EBPF_TCC_IN_V1) ? MIPS_R_V1 : MIPS_R_S4, -1);
+ b_off = b_imm(this_idx + 1, ctx);
+ emit_instr(ctx, bltz, MIPS_R_T5, b_off);
+ /*
+ * prog = array->ptrs[index];
+ * if (prog == NULL)
+ * goto out;
+ */
+ /* Delay slot */
+ emit_instr(ctx, dsll, MIPS_R_T8, MIPS_R_A2, 3);
+ emit_instr(ctx, daddu, MIPS_R_T8, MIPS_R_T8, MIPS_R_A1);
+ off = offsetof(struct bpf_array, ptrs);
+ emit_instr(ctx, ld, MIPS_R_AT, off, MIPS_R_T8);
+ b_off = b_imm(this_idx + 1, ctx);
+ emit_instr(ctx, beq, MIPS_R_AT, MIPS_R_ZERO, b_off);
+ /* Delay slot */
+ emit_instr(ctx, nop);
+
+ /* goto *(prog->bpf_func + 4); */
+ off = offsetof(struct bpf_prog, bpf_func);
+ emit_instr(ctx, ld, MIPS_R_T9, off, MIPS_R_AT);
+ /* All systems are go... propagate TCC */
+ emit_instr(ctx, daddu, MIPS_R_V1, MIPS_R_T5, MIPS_R_ZERO);
+ /* Skip first instruction (TCC initialization) */
+ emit_instr(ctx, daddiu, MIPS_R_T9, MIPS_R_T9, 4);
+ return build_int_epilogue(ctx, MIPS_R_T9);
+}
+
+static bool is_bad_offset(int b_off)
+{
+ return b_off > 0x1ffff || b_off < -0x20000;
+}
+
+/* Returns the number of insn slots consumed. */
+static int build_one_insn(const struct bpf_insn *insn, struct jit_ctx *ctx,
+ int this_idx, int exit_idx)
+{
+ int src, dst, r, td, ts, mem_off, b_off;
+ bool need_swap, did_move, cmp_eq;
+ unsigned int target = 0;
+ u64 t64;
+ s64 t64s;
+ int bpf_op = BPF_OP(insn->code);
+
+ switch (insn->code) {
+ case BPF_ALU64 | BPF_ADD | BPF_K: /* ALU64_IMM */
+ case BPF_ALU64 | BPF_SUB | BPF_K: /* ALU64_IMM */
+ case BPF_ALU64 | BPF_OR | BPF_K: /* ALU64_IMM */
+ case BPF_ALU64 | BPF_AND | BPF_K: /* ALU64_IMM */
+ case BPF_ALU64 | BPF_LSH | BPF_K: /* ALU64_IMM */
+ case BPF_ALU64 | BPF_RSH | BPF_K: /* ALU64_IMM */
+ case BPF_ALU64 | BPF_XOR | BPF_K: /* ALU64_IMM */
+ case BPF_ALU64 | BPF_ARSH | BPF_K: /* ALU64_IMM */
+ case BPF_ALU64 | BPF_MOV | BPF_K: /* ALU64_IMM */
+ case BPF_ALU | BPF_MOV | BPF_K: /* ALU32_IMM */
+ case BPF_ALU | BPF_ADD | BPF_K: /* ALU32_IMM */
+ case BPF_ALU | BPF_SUB | BPF_K: /* ALU32_IMM */
+ case BPF_ALU | BPF_OR | BPF_K: /* ALU64_IMM */
+ case BPF_ALU | BPF_AND | BPF_K: /* ALU64_IMM */
+ case BPF_ALU | BPF_LSH | BPF_K: /* ALU64_IMM */
+ case BPF_ALU | BPF_RSH | BPF_K: /* ALU64_IMM */
+ case BPF_ALU | BPF_XOR | BPF_K: /* ALU64_IMM */
+ case BPF_ALU | BPF_ARSH | BPF_K: /* ALU64_IMM */
+ r = gen_imm_insn(insn, ctx, this_idx);
+ if (r < 0)
+ return r;
+ break;
+ case BPF_ALU64 | BPF_MUL | BPF_K: /* ALU64_IMM */
+ dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+ if (dst < 0)
+ return dst;
+ if (get_reg_val_type(ctx, this_idx, insn->dst_reg) == REG_32BIT)
+ emit_instr(ctx, dinsu, dst, MIPS_R_ZERO, 32, 32);
+ if (insn->imm == 1) /* Mult by 1 is a nop */
+ break;
+ gen_imm_to_reg(insn, MIPS_R_AT, ctx);
+ emit_instr(ctx, dmultu, MIPS_R_AT, dst);
+ emit_instr(ctx, mflo, dst);
+ break;
+ case BPF_ALU64 | BPF_NEG | BPF_K: /* ALU64_IMM */
+ dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+ if (dst < 0)
+ return dst;
+ if (get_reg_val_type(ctx, this_idx, insn->dst_reg) == REG_32BIT)
+ emit_instr(ctx, dinsu, dst, MIPS_R_ZERO, 32, 32);
+ emit_instr(ctx, dsubu, dst, MIPS_R_ZERO, dst);
+ break;
+ case BPF_ALU | BPF_MUL | BPF_K: /* ALU_IMM */
+ dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+ if (dst < 0)
+ return dst;
+ td = get_reg_val_type(ctx, this_idx, insn->dst_reg);
+ if (td == REG_64BIT || td == REG_32BIT_ZERO_EX) {
+ /* sign extend */
+ emit_instr(ctx, sll, dst, dst, 0);
+ }
+ if (insn->imm == 1) /* Mult by 1 is a nop */
+ break;
+ gen_imm_to_reg(insn, MIPS_R_AT, ctx);
+ emit_instr(ctx, multu, dst, MIPS_R_AT);
+ emit_instr(ctx, mflo, dst);
+ break;
+ case BPF_ALU | BPF_NEG | BPF_K: /* ALU_IMM */
+ dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+ if (dst < 0)
+ return dst;
+ td = get_reg_val_type(ctx, this_idx, insn->dst_reg);
+ if (td == REG_64BIT || td == REG_32BIT_ZERO_EX) {
+ /* sign extend */
+ emit_instr(ctx, sll, dst, dst, 0);
+ }
+ emit_instr(ctx, subu, dst, MIPS_R_ZERO, dst);
+ break;
+ case BPF_ALU | BPF_DIV | BPF_K: /* ALU_IMM */
+ case BPF_ALU | BPF_MOD | BPF_K: /* ALU_IMM */
+ dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+ if (dst < 0)
+ return dst;
+ if (insn->imm == 0) { /* Div by zero */
+ b_off = b_imm(exit_idx, ctx);
+ if (is_bad_offset(b_off))
+ return -E2BIG;
+ emit_instr(ctx, beq, MIPS_R_ZERO, MIPS_R_ZERO, b_off);
+ emit_instr(ctx, addu, MIPS_R_V0, MIPS_R_ZERO, MIPS_R_ZERO);
+ }
+ td = get_reg_val_type(ctx, this_idx, insn->dst_reg);
+ if (td == REG_64BIT || td == REG_32BIT_ZERO_EX)
+ /* sign extend */
+ emit_instr(ctx, sll, dst, dst, 0);
+ if (insn->imm == 1) {
+ /* div by 1 is a nop, mod by 1 is zero */
+ if (bpf_op == BPF_MOD)
+ emit_instr(ctx, addu, dst, MIPS_R_ZERO, MIPS_R_ZERO);
+ break;
+ }
+ gen_imm_to_reg(insn, MIPS_R_AT, ctx);
+ emit_instr(ctx, divu, dst, MIPS_R_AT);
+ if (bpf_op == BPF_DIV)
+ emit_instr(ctx, mflo, dst);
+ else
+ emit_instr(ctx, mfhi, dst);
+ break;
+ case BPF_ALU64 | BPF_DIV | BPF_K: /* ALU_IMM */
+ case BPF_ALU64 | BPF_MOD | BPF_K: /* ALU_IMM */
+ dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+ if (dst < 0)
+ return dst;
+ if (insn->imm == 0) { /* Div by zero */
+ b_off = b_imm(exit_idx, ctx);
+ if (is_bad_offset(b_off))
+ return -E2BIG;
+ emit_instr(ctx, beq, MIPS_R_ZERO, MIPS_R_ZERO, b_off);
+ emit_instr(ctx, addu, MIPS_R_V0, MIPS_R_ZERO, MIPS_R_ZERO);
+ }
+ if (get_reg_val_type(ctx, this_idx, insn->dst_reg) == REG_32BIT)
+ emit_instr(ctx, dinsu, dst, MIPS_R_ZERO, 32, 32);
+
+ if (insn->imm == 1) {
+ /* div by 1 is a nop, mod by 1 is zero */
+ if (bpf_op == BPF_MOD)
+ emit_instr(ctx, addu, dst, MIPS_R_ZERO, MIPS_R_ZERO);
+ break;
+ }
+ gen_imm_to_reg(insn, MIPS_R_AT, ctx);
+ emit_instr(ctx, ddivu, dst, MIPS_R_AT);
+ if (bpf_op == BPF_DIV)
+ emit_instr(ctx, mflo, dst);
+ else
+ emit_instr(ctx, mfhi, dst);
+ break;
+ case BPF_ALU64 | BPF_MOV | BPF_X: /* ALU64_REG */
+ case BPF_ALU64 | BPF_ADD | BPF_X: /* ALU64_REG */
+ case BPF_ALU64 | BPF_SUB | BPF_X: /* ALU64_REG */
+ case BPF_ALU64 | BPF_XOR | BPF_X: /* ALU64_REG */
+ case BPF_ALU64 | BPF_OR | BPF_X: /* ALU64_REG */
+ case BPF_ALU64 | BPF_AND | BPF_X: /* ALU64_REG */
+ case BPF_ALU64 | BPF_MUL | BPF_X: /* ALU64_REG */
+ case BPF_ALU64 | BPF_DIV | BPF_X: /* ALU64_REG */
+ case BPF_ALU64 | BPF_MOD | BPF_X: /* ALU64_REG */
+ case BPF_ALU64 | BPF_LSH | BPF_X: /* ALU64_REG */
+ case BPF_ALU64 | BPF_RSH | BPF_X: /* ALU64_REG */
+ case BPF_ALU64 | BPF_ARSH | BPF_X: /* ALU64_REG */
+ src = ebpf_to_mips_reg(ctx, insn, src_reg);
+ dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+ if (src < 0 || dst < 0)
+ return -EINVAL;
+ if (get_reg_val_type(ctx, this_idx, insn->dst_reg) == REG_32BIT)
+ emit_instr(ctx, dinsu, dst, MIPS_R_ZERO, 32, 32);
+ did_move = false;
+ if (insn->src_reg == BPF_REG_10) {
+ if (bpf_op == BPF_MOV) {
+ emit_instr(ctx, daddiu, dst, MIPS_R_SP, MAX_BPF_STACK);
+ did_move = true;
+ } else {
+ emit_instr(ctx, daddiu, MIPS_R_AT, MIPS_R_SP, MAX_BPF_STACK);
+ src = MIPS_R_AT;
+ }
+ } else if (get_reg_val_type(ctx, this_idx, insn->src_reg) == REG_32BIT) {
+ int tmp_reg = MIPS_R_AT;
+
+ if (bpf_op == BPF_MOV) {
+ tmp_reg = dst;
+ did_move = true;
+ }
+ emit_instr(ctx, daddu, tmp_reg, src, MIPS_R_ZERO);
+ emit_instr(ctx, dinsu, tmp_reg, MIPS_R_ZERO, 32, 32);
+ src = MIPS_R_AT;
+ }
+ switch (bpf_op) {
+ case BPF_MOV:
+ if (!did_move)
+ emit_instr(ctx, daddu, dst, src, MIPS_R_ZERO);
+ break;
+ case BPF_ADD:
+ emit_instr(ctx, daddu, dst, dst, src);
+ break;
+ case BPF_SUB:
+ emit_instr(ctx, dsubu, dst, dst, src);
+ break;
+ case BPF_XOR:
+ emit_instr(ctx, xor, dst, dst, src);
+ break;
+ case BPF_OR:
+ emit_instr(ctx, or, dst, dst, src);
+ break;
+ case BPF_AND:
+ emit_instr(ctx, and, dst, dst, src);
+ break;
+ case BPF_MUL:
+ emit_instr(ctx, dmultu, dst, src);
+ emit_instr(ctx, mflo, dst);
+ break;
+ case BPF_DIV:
+ case BPF_MOD:
+ b_off = b_imm(exit_idx, ctx);
+ if (is_bad_offset(b_off))
+ return -E2BIG;
+ emit_instr(ctx, beq, src, MIPS_R_ZERO, b_off);
+ emit_instr(ctx, movz, MIPS_R_V0, MIPS_R_ZERO, src);
+ emit_instr(ctx, ddivu, dst, src);
+ if (bpf_op == BPF_DIV)
+ emit_instr(ctx, mflo, dst);
+ else
+ emit_instr(ctx, mfhi, dst);
+ break;
+ case BPF_LSH:
+ emit_instr(ctx, dsllv, dst, dst, src);
+ break;
+ case BPF_RSH:
+ emit_instr(ctx, dsrlv, dst, dst, src);
+ break;
+ case BPF_ARSH:
+ emit_instr(ctx, dsrav, dst, dst, src);
+ break;
+ default:
+ pr_err("ALU64_REG NOT HANDLED\n");
+ return -EINVAL;
+ }
+ break;
+ case BPF_ALU | BPF_MOV | BPF_X: /* ALU_REG */
+ case BPF_ALU | BPF_ADD | BPF_X: /* ALU_REG */
+ case BPF_ALU | BPF_SUB | BPF_X: /* ALU_REG */
+ case BPF_ALU | BPF_XOR | BPF_X: /* ALU_REG */
+ case BPF_ALU | BPF_OR | BPF_X: /* ALU_REG */
+ case BPF_ALU | BPF_AND | BPF_X: /* ALU_REG */
+ case BPF_ALU | BPF_MUL | BPF_X: /* ALU_REG */
+ case BPF_ALU | BPF_DIV | BPF_X: /* ALU_REG */
+ case BPF_ALU | BPF_MOD | BPF_X: /* ALU_REG */
+ case BPF_ALU | BPF_LSH | BPF_X: /* ALU_REG */
+ case BPF_ALU | BPF_RSH | BPF_X: /* ALU_REG */
+ src = ebpf_to_mips_reg(ctx, insn, src_reg_no_fp);
+ dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+ if (src < 0 || dst < 0)
+ return -EINVAL;
+ td = get_reg_val_type(ctx, this_idx, insn->dst_reg);
+ if (td == REG_64BIT || td == REG_32BIT_ZERO_EX) {
+ /* sign extend */
+ emit_instr(ctx, sll, dst, dst, 0);
+ }
+ did_move = false;
+ ts = get_reg_val_type(ctx, this_idx, insn->src_reg);
+ if (ts == REG_64BIT || ts == REG_32BIT_ZERO_EX) {
+ int tmp_reg = MIPS_R_AT;
+
+ if (bpf_op == BPF_MOV) {
+ tmp_reg = dst;
+ did_move = true;
+ }
+ /* sign extend */
+ emit_instr(ctx, sll, tmp_reg, src, 0);
+ src = MIPS_R_AT;
+ }
+ switch (bpf_op) {
+ case BPF_MOV:
+ if (!did_move)
+ emit_instr(ctx, addu, dst, src, MIPS_R_ZERO);
+ break;
+ case BPF_ADD:
+ emit_instr(ctx, addu, dst, dst, src);
+ break;
+ case BPF_SUB:
+ emit_instr(ctx, subu, dst, dst, src);
+ break;
+ case BPF_XOR:
+ emit_instr(ctx, xor, dst, dst, src);
+ break;
+ case BPF_OR:
+ emit_instr(ctx, or, dst, dst, src);
+ break;
+ case BPF_AND:
+ emit_instr(ctx, and, dst, dst, src);
+ break;
+ case BPF_MUL:
+ emit_instr(ctx, mul, dst, dst, src);
+ break;
+ case BPF_DIV:
+ case BPF_MOD:
+ b_off = b_imm(exit_idx, ctx);
+ if (is_bad_offset(b_off))
+ return -E2BIG;
+ emit_instr(ctx, beq, src, MIPS_R_ZERO, b_off);
+ emit_instr(ctx, movz, MIPS_R_V0, MIPS_R_ZERO, src);
+ emit_instr(ctx, divu, dst, src);
+ if (bpf_op == BPF_DIV)
+ emit_instr(ctx, mflo, dst);
+ else
+ emit_instr(ctx, mfhi, dst);
+ break;
+ case BPF_LSH:
+ emit_instr(ctx, sllv, dst, dst, src);
+ break;
+ case BPF_RSH:
+ emit_instr(ctx, srlv, dst, dst, src);
+ break;
+ default:
+ pr_err("ALU_REG NOT HANDLED\n");
+ return -EINVAL;
+ }
+ break;
+ case BPF_JMP | BPF_EXIT:
+ if (this_idx + 1 < exit_idx) {
+ b_off = b_imm(exit_idx, ctx);
+ if (is_bad_offset(b_off))
+ return -E2BIG;
+ emit_instr(ctx, beq, MIPS_R_ZERO, MIPS_R_ZERO, b_off);
+ emit_instr(ctx, nop);
+ }
+ break;
+ case BPF_JMP | BPF_JEQ | BPF_K: /* JMP_IMM */
+ case BPF_JMP | BPF_JNE | BPF_K: /* JMP_IMM */
+ cmp_eq = (bpf_op == BPF_JEQ);
+ dst = ebpf_to_mips_reg(ctx, insn, dst_reg_fp_ok);
+ if (dst < 0)
+ return dst;
+ if (insn->imm == 0) {
+ src = MIPS_R_ZERO;
+ } else {
+ gen_imm_to_reg(insn, MIPS_R_AT, ctx);
+ src = MIPS_R_AT;
+ }
+ goto jeq_common;
+ case BPF_JMP | BPF_JEQ | BPF_X: /* JMP_REG */
+ case BPF_JMP | BPF_JNE | BPF_X:
+ case BPF_JMP | BPF_JSLT | BPF_X:
+ case BPF_JMP | BPF_JSLE | BPF_X:
+ case BPF_JMP | BPF_JSGT | BPF_X:
+ case BPF_JMP | BPF_JSGE | BPF_X:
+ case BPF_JMP | BPF_JLT | BPF_X:
+ case BPF_JMP | BPF_JLE | BPF_X:
+ case BPF_JMP | BPF_JGT | BPF_X:
+ case BPF_JMP | BPF_JGE | BPF_X:
+ case BPF_JMP | BPF_JSET | BPF_X:
+ src = ebpf_to_mips_reg(ctx, insn, src_reg_no_fp);
+ dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+ if (src < 0 || dst < 0)
+ return -EINVAL;
+ td = get_reg_val_type(ctx, this_idx, insn->dst_reg);
+ ts = get_reg_val_type(ctx, this_idx, insn->src_reg);
+ if (td == REG_32BIT && ts != REG_32BIT) {
+ emit_instr(ctx, sll, MIPS_R_AT, src, 0);
+ src = MIPS_R_AT;
+ } else if (ts == REG_32BIT && td != REG_32BIT) {
+ emit_instr(ctx, sll, MIPS_R_AT, dst, 0);
+ dst = MIPS_R_AT;
+ }
+ if (bpf_op == BPF_JSET) {
+ emit_instr(ctx, and, MIPS_R_AT, dst, src);
+ cmp_eq = false;
+ dst = MIPS_R_AT;
+ src = MIPS_R_ZERO;
+ } else if (bpf_op == BPF_JSGT || bpf_op == BPF_JSLE) {
+ emit_instr(ctx, dsubu, MIPS_R_AT, dst, src);
+ if ((insn + 1)->code == (BPF_JMP | BPF_EXIT) && insn->off == 1) {
+ b_off = b_imm(exit_idx, ctx);
+ if (is_bad_offset(b_off))
+ return -E2BIG;
+ if (bpf_op == BPF_JSGT)
+ emit_instr(ctx, blez, MIPS_R_AT, b_off);
+ else
+ emit_instr(ctx, bgtz, MIPS_R_AT, b_off);
+ emit_instr(ctx, nop);
+ return 2; /* We consumed the exit. */
+ }
+ b_off = b_imm(this_idx + insn->off + 1, ctx);
+ if (is_bad_offset(b_off))
+ return -E2BIG;
+ if (bpf_op == BPF_JSGT)
+ emit_instr(ctx, bgtz, MIPS_R_AT, b_off);
+ else
+ emit_instr(ctx, blez, MIPS_R_AT, b_off);
+ emit_instr(ctx, nop);
+ break;
+ } else if (bpf_op == BPF_JSGE || bpf_op == BPF_JSLT) {
+ emit_instr(ctx, slt, MIPS_R_AT, dst, src);
+ cmp_eq = bpf_op == BPF_JSGE;
+ dst = MIPS_R_AT;
+ src = MIPS_R_ZERO;
+ } else if (bpf_op == BPF_JGT || bpf_op == BPF_JLE) {
+ /* dst or src could be AT */
+ emit_instr(ctx, dsubu, MIPS_R_T8, dst, src);
+ emit_instr(ctx, sltu, MIPS_R_AT, dst, src);
+ /* SP known to be non-zero, movz becomes boolean not */
+ emit_instr(ctx, movz, MIPS_R_T9, MIPS_R_SP, MIPS_R_T8);
+ emit_instr(ctx, movn, MIPS_R_T9, MIPS_R_ZERO, MIPS_R_T8);
+ emit_instr(ctx, or, MIPS_R_AT, MIPS_R_T9, MIPS_R_AT);
+ cmp_eq = bpf_op == BPF_JGT;
+ dst = MIPS_R_AT;
+ src = MIPS_R_ZERO;
+ } else if (bpf_op == BPF_JGE || bpf_op == BPF_JLT) {
+ emit_instr(ctx, sltu, MIPS_R_AT, dst, src);
+ cmp_eq = bpf_op == BPF_JGE;
+ dst = MIPS_R_AT;
+ src = MIPS_R_ZERO;
+ } else { /* JNE/JEQ case */
+ cmp_eq = (bpf_op == BPF_JEQ);
+ }
+jeq_common:
+ /*
+ * If the next insn is EXIT and we are jumping arround
+ * only it, invert the sense of the compare and
+ * conditionally jump to the exit. Poor man's branch
+ * chaining.
+ */
+ if ((insn + 1)->code == (BPF_JMP | BPF_EXIT) && insn->off == 1) {
+ b_off = b_imm(exit_idx, ctx);
+ if (is_bad_offset(b_off)) {
+ target = j_target(ctx, exit_idx);
+ if (target == (unsigned int)-1)
+ return -E2BIG;
+ cmp_eq = !cmp_eq;
+ b_off = 4 * 3;
+ if (!(ctx->offsets[this_idx] & OFFSETS_B_CONV)) {
+ ctx->offsets[this_idx] |= OFFSETS_B_CONV;
+ ctx->long_b_conversion = 1;
+ }
+ }
+
+ if (cmp_eq)
+ emit_instr(ctx, bne, dst, src, b_off);
+ else
+ emit_instr(ctx, beq, dst, src, b_off);
+ emit_instr(ctx, nop);
+ if (ctx->offsets[this_idx] & OFFSETS_B_CONV) {
+ emit_instr(ctx, j, target);
+ emit_instr(ctx, nop);
+ }
+ return 2; /* We consumed the exit. */
+ }
+ b_off = b_imm(this_idx + insn->off + 1, ctx);
+ if (is_bad_offset(b_off)) {
+ target = j_target(ctx, this_idx + insn->off + 1);
+ if (target == (unsigned int)-1)
+ return -E2BIG;
+ cmp_eq = !cmp_eq;
+ b_off = 4 * 3;
+ if (!(ctx->offsets[this_idx] & OFFSETS_B_CONV)) {
+ ctx->offsets[this_idx] |= OFFSETS_B_CONV;
+ ctx->long_b_conversion = 1;
+ }
+ }
+
+ if (cmp_eq)
+ emit_instr(ctx, beq, dst, src, b_off);
+ else
+ emit_instr(ctx, bne, dst, src, b_off);
+ emit_instr(ctx, nop);
+ if (ctx->offsets[this_idx] & OFFSETS_B_CONV) {
+ emit_instr(ctx, j, target);
+ emit_instr(ctx, nop);
+ }
+ break;
+ case BPF_JMP | BPF_JSGT | BPF_K: /* JMP_IMM */
+ case BPF_JMP | BPF_JSGE | BPF_K: /* JMP_IMM */
+ case BPF_JMP | BPF_JSLT | BPF_K: /* JMP_IMM */
+ case BPF_JMP | BPF_JSLE | BPF_K: /* JMP_IMM */
+ cmp_eq = (bpf_op == BPF_JSGE);
+ dst = ebpf_to_mips_reg(ctx, insn, dst_reg_fp_ok);
+ if (dst < 0)
+ return dst;
+
+ if (insn->imm == 0) {
+ if ((insn + 1)->code == (BPF_JMP | BPF_EXIT) && insn->off == 1) {
+ b_off = b_imm(exit_idx, ctx);
+ if (is_bad_offset(b_off))
+ return -E2BIG;
+ switch (bpf_op) {
+ case BPF_JSGT:
+ emit_instr(ctx, blez, dst, b_off);
+ break;
+ case BPF_JSGE:
+ emit_instr(ctx, bltz, dst, b_off);
+ break;
+ case BPF_JSLT:
+ emit_instr(ctx, bgez, dst, b_off);
+ break;
+ case BPF_JSLE:
+ emit_instr(ctx, bgtz, dst, b_off);
+ break;
+ }
+ emit_instr(ctx, nop);
+ return 2; /* We consumed the exit. */
+ }
+ b_off = b_imm(this_idx + insn->off + 1, ctx);
+ if (is_bad_offset(b_off))
+ return -E2BIG;
+ switch (bpf_op) {
+ case BPF_JSGT:
+ emit_instr(ctx, bgtz, dst, b_off);
+ break;
+ case BPF_JSGE:
+ emit_instr(ctx, bgez, dst, b_off);
+ break;
+ case BPF_JSLT:
+ emit_instr(ctx, bltz, dst, b_off);
+ break;
+ case BPF_JSLE:
+ emit_instr(ctx, blez, dst, b_off);
+ break;
+ }
+ emit_instr(ctx, nop);
+ break;
+ }
+ /*
+ * only "LT" compare available, so we must use imm + 1
+ * to generate "GT" and imm -1 to generate LE
+ */
+ if (bpf_op == BPF_JSGT)
+ t64s = insn->imm + 1;
+ else if (bpf_op == BPF_JSLE)
+ t64s = insn->imm + 1;
+ else
+ t64s = insn->imm;
+
+ cmp_eq = bpf_op == BPF_JSGT || bpf_op == BPF_JSGE;
+ if (t64s >= S16_MIN && t64s <= S16_MAX) {
+ emit_instr(ctx, slti, MIPS_R_AT, dst, (int)t64s);
+ src = MIPS_R_AT;
+ dst = MIPS_R_ZERO;
+ goto jeq_common;
+ }
+ emit_const_to_reg(ctx, MIPS_R_AT, (u64)t64s);
+ emit_instr(ctx, slt, MIPS_R_AT, dst, MIPS_R_AT);
+ src = MIPS_R_AT;
+ dst = MIPS_R_ZERO;
+ goto jeq_common;
+
+ case BPF_JMP | BPF_JGT | BPF_K:
+ case BPF_JMP | BPF_JGE | BPF_K:
+ case BPF_JMP | BPF_JLT | BPF_K:
+ case BPF_JMP | BPF_JLE | BPF_K:
+ cmp_eq = (bpf_op == BPF_JGE);
+ dst = ebpf_to_mips_reg(ctx, insn, dst_reg_fp_ok);
+ if (dst < 0)
+ return dst;
+ /*
+ * only "LT" compare available, so we must use imm + 1
+ * to generate "GT" and imm -1 to generate LE
+ */
+ if (bpf_op == BPF_JGT)
+ t64s = (u64)(u32)(insn->imm) + 1;
+ else if (bpf_op == BPF_JLE)
+ t64s = (u64)(u32)(insn->imm) + 1;
+ else
+ t64s = (u64)(u32)(insn->imm);
+
+ cmp_eq = bpf_op == BPF_JGT || bpf_op == BPF_JGE;
+
+ emit_const_to_reg(ctx, MIPS_R_AT, (u64)t64s);
+ emit_instr(ctx, sltu, MIPS_R_AT, dst, MIPS_R_AT);
+ src = MIPS_R_AT;
+ dst = MIPS_R_ZERO;
+ goto jeq_common;
+
+ case BPF_JMP | BPF_JSET | BPF_K: /* JMP_IMM */
+ dst = ebpf_to_mips_reg(ctx, insn, dst_reg_fp_ok);
+ if (dst < 0)
+ return dst;
+
+ if (ctx->use_bbit_insns && hweight32((u32)insn->imm) == 1) {
+ if ((insn + 1)->code == (BPF_JMP | BPF_EXIT) && insn->off == 1) {
+ b_off = b_imm(exit_idx, ctx);
+ if (is_bad_offset(b_off))
+ return -E2BIG;
+ emit_instr(ctx, bbit0, dst, ffs((u32)insn->imm) - 1, b_off);
+ emit_instr(ctx, nop);
+ return 2; /* We consumed the exit. */
+ }
+ b_off = b_imm(this_idx + insn->off + 1, ctx);
+ if (is_bad_offset(b_off))
+ return -E2BIG;
+ emit_instr(ctx, bbit1, dst, ffs((u32)insn->imm) - 1, b_off);
+ emit_instr(ctx, nop);
+ break;
+ }
+ t64 = (u32)insn->imm;
+ emit_const_to_reg(ctx, MIPS_R_AT, t64);
+ emit_instr(ctx, and, MIPS_R_AT, dst, MIPS_R_AT);
+ src = MIPS_R_AT;
+ dst = MIPS_R_ZERO;
+ cmp_eq = false;
+ goto jeq_common;
+
+ case BPF_JMP | BPF_JA:
+ /*
+ * Prefer relative branch for easier debugging, but
+ * fall back if needed.
+ */
+ b_off = b_imm(this_idx + insn->off + 1, ctx);
+ if (is_bad_offset(b_off)) {
+ target = j_target(ctx, this_idx + insn->off + 1);
+ if (target == (unsigned int)-1)
+ return -E2BIG;
+ emit_instr(ctx, j, target);
+ } else {
+ emit_instr(ctx, b, b_off);
+ }
+ emit_instr(ctx, nop);
+ break;
+ case BPF_LD | BPF_DW | BPF_IMM:
+ if (insn->src_reg != 0)
+ return -EINVAL;
+ dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+ if (dst < 0)
+ return dst;
+ t64 = ((u64)(u32)insn->imm) | ((u64)(insn + 1)->imm << 32);
+ emit_const_to_reg(ctx, dst, t64);
+ return 2; /* Double slot insn */
+
+ case BPF_JMP | BPF_CALL:
+ ctx->flags |= EBPF_SAVE_RA;
+ t64s = (s64)insn->imm + (s64)__bpf_call_base;
+ emit_const_to_reg(ctx, MIPS_R_T9, (u64)t64s);
+ emit_instr(ctx, jalr, MIPS_R_RA, MIPS_R_T9);
+ /* delay slot */
+ emit_instr(ctx, nop);
+ break;
+
+ case BPF_JMP | BPF_TAIL_CALL:
+ if (emit_bpf_tail_call(ctx, this_idx))
+ return -EINVAL;
+ break;
+
+ case BPF_LD | BPF_B | BPF_ABS:
+ case BPF_LD | BPF_H | BPF_ABS:
+ case BPF_LD | BPF_W | BPF_ABS:
+ case BPF_LD | BPF_DW | BPF_ABS:
+ ctx->flags |= EBPF_SAVE_RA;
+
+ gen_imm_to_reg(insn, MIPS_R_A1, ctx);
+ emit_instr(ctx, addiu, MIPS_R_A2, MIPS_R_ZERO, size_to_len(insn));
+
+ if (insn->imm < 0) {
+ emit_const_to_reg(ctx, MIPS_R_T9, (u64)bpf_internal_load_pointer_neg_helper);
+ } else {
+ emit_const_to_reg(ctx, MIPS_R_T9, (u64)ool_skb_header_pointer);
+ emit_instr(ctx, daddiu, MIPS_R_A3, MIPS_R_SP, ctx->tmp_offset);
+ }
+ goto ld_skb_common;
+
+ case BPF_LD | BPF_B | BPF_IND:
+ case BPF_LD | BPF_H | BPF_IND:
+ case BPF_LD | BPF_W | BPF_IND:
+ case BPF_LD | BPF_DW | BPF_IND:
+ ctx->flags |= EBPF_SAVE_RA;
+ src = ebpf_to_mips_reg(ctx, insn, src_reg_no_fp);
+ if (src < 0)
+ return src;
+ ts = get_reg_val_type(ctx, this_idx, insn->src_reg);
+ if (ts == REG_32BIT_ZERO_EX) {
+ /* sign extend */
+ emit_instr(ctx, sll, MIPS_R_A1, src, 0);
+ src = MIPS_R_A1;
+ }
+ if (insn->imm >= S16_MIN && insn->imm <= S16_MAX) {
+ emit_instr(ctx, daddiu, MIPS_R_A1, src, insn->imm);
+ } else {
+ gen_imm_to_reg(insn, MIPS_R_AT, ctx);
+ emit_instr(ctx, daddu, MIPS_R_A1, MIPS_R_AT, src);
+ }
+ /* truncate to 32-bit int */
+ emit_instr(ctx, sll, MIPS_R_A1, MIPS_R_A1, 0);
+ emit_instr(ctx, daddiu, MIPS_R_A3, MIPS_R_SP, ctx->tmp_offset);
+ emit_instr(ctx, slt, MIPS_R_AT, MIPS_R_A1, MIPS_R_ZERO);
+
+ emit_const_to_reg(ctx, MIPS_R_T8, (u64)bpf_internal_load_pointer_neg_helper);
+ emit_const_to_reg(ctx, MIPS_R_T9, (u64)ool_skb_header_pointer);
+ emit_instr(ctx, addiu, MIPS_R_A2, MIPS_R_ZERO, size_to_len(insn));
+ emit_instr(ctx, movn, MIPS_R_T9, MIPS_R_T8, MIPS_R_AT);
+
+ld_skb_common:
+ emit_instr(ctx, jalr, MIPS_R_RA, MIPS_R_T9);
+ /* delay slot move */
+ emit_instr(ctx, daddu, MIPS_R_A0, MIPS_R_S0, MIPS_R_ZERO);
+
+ /* Check the error value */
+ b_off = b_imm(exit_idx, ctx);
+ if (is_bad_offset(b_off)) {
+ target = j_target(ctx, exit_idx);
+ if (target == (unsigned int)-1)
+ return -E2BIG;
+
+ if (!(ctx->offsets[this_idx] & OFFSETS_B_CONV)) {
+ ctx->offsets[this_idx] |= OFFSETS_B_CONV;
+ ctx->long_b_conversion = 1;
+ }
+ emit_instr(ctx, bne, MIPS_R_V0, MIPS_R_ZERO, 4 * 3);
+ emit_instr(ctx, nop);
+ emit_instr(ctx, j, target);
+ emit_instr(ctx, nop);
+ } else {
+ emit_instr(ctx, beq, MIPS_R_V0, MIPS_R_ZERO, b_off);
+ emit_instr(ctx, nop);
+ }
+
+#ifdef __BIG_ENDIAN
+ need_swap = false;
+#else
+ need_swap = true;
+#endif
+ dst = MIPS_R_V0;
+ switch (BPF_SIZE(insn->code)) {
+ case BPF_B:
+ emit_instr(ctx, lbu, dst, 0, MIPS_R_V0);
+ break;
+ case BPF_H:
+ emit_instr(ctx, lhu, dst, 0, MIPS_R_V0);
+ if (need_swap)
+ emit_instr(ctx, wsbh, dst, dst);
+ break;
+ case BPF_W:
+ emit_instr(ctx, lw, dst, 0, MIPS_R_V0);
+ if (need_swap) {
+ emit_instr(ctx, wsbh, dst, dst);
+ emit_instr(ctx, rotr, dst, dst, 16);
+ }
+ break;
+ case BPF_DW:
+ emit_instr(ctx, ld, dst, 0, MIPS_R_V0);
+ if (need_swap) {
+ emit_instr(ctx, dsbh, dst, dst);
+ emit_instr(ctx, dshd, dst, dst);
+ }
+ break;
+ }
+
+ break;
+ case BPF_ALU | BPF_END | BPF_FROM_BE:
+ case BPF_ALU | BPF_END | BPF_FROM_LE:
+ dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+ if (dst < 0)
+ return dst;
+ td = get_reg_val_type(ctx, this_idx, insn->dst_reg);
+ if (insn->imm == 64 && td == REG_32BIT)
+ emit_instr(ctx, dinsu, dst, MIPS_R_ZERO, 32, 32);
+
+ if (insn->imm != 64 &&
+ (td == REG_64BIT || td == REG_32BIT_ZERO_EX)) {
+ /* sign extend */
+ emit_instr(ctx, sll, dst, dst, 0);
+ }
+
+#ifdef __BIG_ENDIAN
+ need_swap = (BPF_SRC(insn->code) == BPF_FROM_LE);
+#else
+ need_swap = (BPF_SRC(insn->code) == BPF_FROM_BE);
+#endif
+ if (insn->imm == 16) {
+ if (need_swap)
+ emit_instr(ctx, wsbh, dst, dst);
+ emit_instr(ctx, andi, dst, dst, 0xffff);
+ } else if (insn->imm == 32) {
+ if (need_swap) {
+ emit_instr(ctx, wsbh, dst, dst);
+ emit_instr(ctx, rotr, dst, dst, 16);
+ }
+ } else { /* 64-bit*/
+ if (need_swap) {
+ emit_instr(ctx, dsbh, dst, dst);
+ emit_instr(ctx, dshd, dst, dst);
+ }
+ }
+ break;
+
+ case BPF_ST | BPF_B | BPF_MEM:
+ case BPF_ST | BPF_H | BPF_MEM:
+ case BPF_ST | BPF_W | BPF_MEM:
+ case BPF_ST | BPF_DW | BPF_MEM:
+ if (insn->dst_reg == BPF_REG_10) {
+ ctx->flags |= EBPF_SEEN_FP;
+ dst = MIPS_R_SP;
+ mem_off = insn->off + MAX_BPF_STACK;
+ } else {
+ dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+ if (dst < 0)
+ return dst;
+ mem_off = insn->off;
+ }
+ gen_imm_to_reg(insn, MIPS_R_AT, ctx);
+ switch (BPF_SIZE(insn->code)) {
+ case BPF_B:
+ emit_instr(ctx, sb, MIPS_R_AT, mem_off, dst);
+ break;
+ case BPF_H:
+ emit_instr(ctx, sh, MIPS_R_AT, mem_off, dst);
+ break;
+ case BPF_W:
+ emit_instr(ctx, sw, MIPS_R_AT, mem_off, dst);
+ break;
+ case BPF_DW:
+ emit_instr(ctx, sd, MIPS_R_AT, mem_off, dst);
+ break;
+ }
+ break;
+
+ case BPF_LDX | BPF_B | BPF_MEM:
+ case BPF_LDX | BPF_H | BPF_MEM:
+ case BPF_LDX | BPF_W | BPF_MEM:
+ case BPF_LDX | BPF_DW | BPF_MEM:
+ if (insn->src_reg == BPF_REG_10) {
+ ctx->flags |= EBPF_SEEN_FP;
+ src = MIPS_R_SP;
+ mem_off = insn->off + MAX_BPF_STACK;
+ } else {
+ src = ebpf_to_mips_reg(ctx, insn, src_reg_no_fp);
+ if (src < 0)
+ return src;
+ mem_off = insn->off;
+ }
+ dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+ if (dst < 0)
+ return dst;
+ switch (BPF_SIZE(insn->code)) {
+ case BPF_B:
+ emit_instr(ctx, lbu, dst, mem_off, src);
+ break;
+ case BPF_H:
+ emit_instr(ctx, lhu, dst, mem_off, src);
+ break;
+ case BPF_W:
+ emit_instr(ctx, lw, dst, mem_off, src);
+ break;
+ case BPF_DW:
+ emit_instr(ctx, ld, dst, mem_off, src);
+ break;
+ }
+ break;
+
+ case BPF_STX | BPF_B | BPF_MEM:
+ case BPF_STX | BPF_H | BPF_MEM:
+ case BPF_STX | BPF_W | BPF_MEM:
+ case BPF_STX | BPF_DW | BPF_MEM:
+ case BPF_STX | BPF_W | BPF_XADD:
+ case BPF_STX | BPF_DW | BPF_XADD:
+ if (insn->dst_reg == BPF_REG_10) {
+ ctx->flags |= EBPF_SEEN_FP;
+ dst = MIPS_R_SP;
+ mem_off = insn->off + MAX_BPF_STACK;
+ } else {
+ dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+ if (dst < 0)
+ return dst;
+ mem_off = insn->off;
+ }
+ src = ebpf_to_mips_reg(ctx, insn, src_reg_no_fp);
+ if (src < 0)
+ return dst;
+ if (BPF_MODE(insn->code) == BPF_XADD) {
+ switch (BPF_SIZE(insn->code)) {
+ case BPF_W:
+ if (get_reg_val_type(ctx, this_idx, insn->src_reg) == REG_32BIT) {
+ emit_instr(ctx, sll, MIPS_R_AT, src, 0);
+ src = MIPS_R_AT;
+ }
+ emit_instr(ctx, ll, MIPS_R_T8, mem_off, dst);
+ emit_instr(ctx, addu, MIPS_R_T8, MIPS_R_T8, src);
+ emit_instr(ctx, sc, MIPS_R_T8, mem_off, dst);
+ /*
+ * On failure back up to LL (-4
+ * instructions of 4 bytes each
+ */
+ emit_instr(ctx, beq, MIPS_R_T8, MIPS_R_ZERO, -4 * 4);
+ emit_instr(ctx, nop);
+ break;
+ case BPF_DW:
+ if (get_reg_val_type(ctx, this_idx, insn->src_reg) == REG_32BIT) {
+ emit_instr(ctx, daddu, MIPS_R_AT, src, MIPS_R_ZERO);
+ emit_instr(ctx, dinsu, MIPS_R_AT, MIPS_R_ZERO, 32, 32);
+ src = MIPS_R_AT;
+ }
+ emit_instr(ctx, lld, MIPS_R_T8, mem_off, dst);
+ emit_instr(ctx, daddu, MIPS_R_T8, MIPS_R_T8, src);
+ emit_instr(ctx, scd, MIPS_R_T8, mem_off, dst);
+ emit_instr(ctx, beq, MIPS_R_T8, MIPS_R_ZERO, -4 * 4);
+ emit_instr(ctx, nop);
+ break;
+ }
+ } else { /* BPF_MEM */
+ switch (BPF_SIZE(insn->code)) {
+ case BPF_B:
+ emit_instr(ctx, sb, src, mem_off, dst);
+ break;
+ case BPF_H:
+ emit_instr(ctx, sh, src, mem_off, dst);
+ break;
+ case BPF_W:
+ emit_instr(ctx, sw, src, mem_off, dst);
+ break;
+ case BPF_DW:
+ if (get_reg_val_type(ctx, this_idx, insn->src_reg) == REG_32BIT) {
+ emit_instr(ctx, daddu, MIPS_R_AT, src, MIPS_R_ZERO);
+ emit_instr(ctx, dinsu, MIPS_R_AT, MIPS_R_ZERO, 32, 32);
+ src = MIPS_R_AT;
+ }
+ emit_instr(ctx, sd, src, mem_off, dst);
+ break;
+ }
+ }
+ break;
+
+ default:
+ pr_err("NOT HANDLED %d - (%02x)\n",
+ this_idx, (unsigned int)insn->code);
+ return -EINVAL;
+ }
+ return 1;
+}
+
+#define RVT_VISITED_MASK 0xc000000000000000ull
+#define RVT_FALL_THROUGH 0x4000000000000000ull
+#define RVT_BRANCH_TAKEN 0x8000000000000000ull
+#define RVT_DONE (RVT_FALL_THROUGH | RVT_BRANCH_TAKEN)
+
+static int build_int_body(struct jit_ctx *ctx)
+{
+ const struct bpf_prog *prog = ctx->skf;
+ const struct bpf_insn *insn;
+ int i, r;
+
+ for (i = 0; i < prog->len; ) {
+ insn = prog->insnsi + i;
+ if ((ctx->reg_val_types[i] & RVT_VISITED_MASK) == 0) {
+ /* dead instruction, don't emit it. */
+ i++;
+ continue;
+ }
+
+ if (ctx->target == NULL)
+ ctx->offsets[i] = (ctx->offsets[i] & OFFSETS_B_CONV) | (ctx->idx * 4);
+
+ r = build_one_insn(insn, ctx, i, prog->len);
+ if (r < 0)
+ return r;
+ i += r;
+ }
+ /* epilogue offset */
+ if (ctx->target == NULL)
+ ctx->offsets[i] = ctx->idx * 4;
+
+ /*
+ * All exits have an offset of the epilogue, some offsets may
+ * not have been set due to banch-around threading, so set
+ * them now.
+ */
+ if (ctx->target == NULL)
+ for (i = 0; i < prog->len; i++) {
+ insn = prog->insnsi + i;
+ if (insn->code == (BPF_JMP | BPF_EXIT))
+ ctx->offsets[i] = ctx->idx * 4;
+ }
+ return 0;
+}
+
+/* return the last idx processed, or negative for error */
+static int reg_val_propagate_range(struct jit_ctx *ctx, u64 initial_rvt,
+ int start_idx, bool follow_taken)
+{
+ const struct bpf_prog *prog = ctx->skf;
+ const struct bpf_insn *insn;
+ u64 exit_rvt = initial_rvt;
+ u64 *rvt = ctx->reg_val_types;
+ int idx;
+ int reg;
+
+ for (idx = start_idx; idx < prog->len; idx++) {
+ rvt[idx] = (rvt[idx] & RVT_VISITED_MASK) | exit_rvt;
+ insn = prog->insnsi + idx;
+ switch (BPF_CLASS(insn->code)) {
+ case BPF_ALU:
+ switch (BPF_OP(insn->code)) {
+ case BPF_ADD:
+ case BPF_SUB:
+ case BPF_MUL:
+ case BPF_DIV:
+ case BPF_OR:
+ case BPF_AND:
+ case BPF_LSH:
+ case BPF_RSH:
+ case BPF_NEG:
+ case BPF_MOD:
+ case BPF_XOR:
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT);
+ break;
+ case BPF_MOV:
+ if (BPF_SRC(insn->code)) {
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT);
+ } else {
+ /* IMM to REG move*/
+ if (insn->imm >= 0)
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT_POS);
+ else
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT);
+ }
+ break;
+ case BPF_END:
+ if (insn->imm == 64)
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_64BIT);
+ else if (insn->imm == 32)
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT);
+ else /* insn->imm == 16 */
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT_POS);
+ break;
+ }
+ rvt[idx] |= RVT_DONE;
+ break;
+ case BPF_ALU64:
+ switch (BPF_OP(insn->code)) {
+ case BPF_MOV:
+ if (BPF_SRC(insn->code)) {
+ /* REG to REG move*/
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_64BIT);
+ } else {
+ /* IMM to REG move*/
+ if (insn->imm >= 0)
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT_POS);
+ else
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_64BIT_32BIT);
+ }
+ break;
+ default:
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_64BIT);
+ }
+ rvt[idx] |= RVT_DONE;
+ break;
+ case BPF_LD:
+ switch (BPF_SIZE(insn->code)) {
+ case BPF_DW:
+ if (BPF_MODE(insn->code) == BPF_IMM) {
+ s64 val;
+
+ val = (s64)((u32)insn->imm | ((u64)(insn + 1)->imm << 32));
+ if (val > 0 && val <= S32_MAX)
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT_POS);
+ else if (val >= S32_MIN && val <= S32_MAX)
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_64BIT_32BIT);
+ else
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_64BIT);
+ rvt[idx] |= RVT_DONE;
+ idx++;
+ } else {
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_64BIT);
+ }
+ break;
+ case BPF_B:
+ case BPF_H:
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT_POS);
+ break;
+ case BPF_W:
+ if (BPF_MODE(insn->code) == BPF_IMM)
+ set_reg_val_type(&exit_rvt, insn->dst_reg,
+ insn->imm >= 0 ? REG_32BIT_POS : REG_32BIT);
+ else
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT);
+ break;
+ }
+ rvt[idx] |= RVT_DONE;
+ break;
+ case BPF_LDX:
+ switch (BPF_SIZE(insn->code)) {
+ case BPF_DW:
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_64BIT);
+ break;
+ case BPF_B:
+ case BPF_H:
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT_POS);
+ break;
+ case BPF_W:
+ set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT);
+ break;
+ }
+ rvt[idx] |= RVT_DONE;
+ break;
+ case BPF_JMP:
+ switch (BPF_OP(insn->code)) {
+ case BPF_EXIT:
+ rvt[idx] = RVT_DONE | exit_rvt;
+ rvt[prog->len] = exit_rvt;
+ return idx;
+ case BPF_JA:
+ rvt[idx] |= RVT_DONE;
+ idx += insn->off;
+ break;
+ case BPF_JEQ:
+ case BPF_JGT:
+ case BPF_JGE:
+ case BPF_JLT:
+ case BPF_JLE:
+ case BPF_JSET:
+ case BPF_JNE:
+ case BPF_JSGT:
+ case BPF_JSGE:
+ case BPF_JSLT:
+ case BPF_JSLE:
+ if (follow_taken) {
+ rvt[idx] |= RVT_BRANCH_TAKEN;
+ idx += insn->off;
+ follow_taken = false;
+ } else {
+ rvt[idx] |= RVT_FALL_THROUGH;
+ }
+ break;
+ case BPF_CALL:
+ set_reg_val_type(&exit_rvt, BPF_REG_0, REG_64BIT);
+ /* Upon call return, argument registers are clobbered. */
+ for (reg = BPF_REG_0; reg <= BPF_REG_5; reg++)
+ set_reg_val_type(&exit_rvt, reg, REG_64BIT);
+
+ rvt[idx] |= RVT_DONE;
+ break;
+ default:
+ WARN(1, "Unhandled BPF_JMP case.\n");
+ rvt[idx] |= RVT_DONE;
+ break;
+ }
+ break;
+ default:
+ rvt[idx] |= RVT_DONE;
+ break;
+ }
+ }
+ return idx;
+}
+
+/*
+ * Track the value range (i.e. 32-bit vs. 64-bit) of each register at
+ * each eBPF insn. This allows unneeded sign and zero extension
+ * operations to be omitted.
+ *
+ * Doesn't handle yet confluence of control paths with conflicting
+ * ranges, but it is good enough for most sane code.
+ */
+static int reg_val_propagate(struct jit_ctx *ctx)
+{
+ const struct bpf_prog *prog = ctx->skf;
+ u64 exit_rvt;
+ int reg;
+ int i;
+
+ /*
+ * 11 registers * 3 bits/reg leaves top bits free for other
+ * uses. Bit-62..63 used to see if we have visited an insn.
+ */
+ exit_rvt = 0;
+
+ /* Upon entry, argument registers are 64-bit. */
+ for (reg = BPF_REG_1; reg <= BPF_REG_5; reg++)
+ set_reg_val_type(&exit_rvt, reg, REG_64BIT);
+
+ /*
+ * First follow all conditional branches on the fall-through
+ * edge of control flow..
+ */
+ reg_val_propagate_range(ctx, exit_rvt, 0, false);
+restart_search:
+ /*
+ * Then repeatedly find the first conditional branch where
+ * both edges of control flow have not been taken, and follow
+ * the branch taken edge. We will end up restarting the
+ * search once per conditional branch insn.
+ */
+ for (i = 0; i < prog->len; i++) {
+ u64 rvt = ctx->reg_val_types[i];
+
+ if ((rvt & RVT_VISITED_MASK) == RVT_DONE ||
+ (rvt & RVT_VISITED_MASK) == 0)
+ continue;
+ if ((rvt & RVT_VISITED_MASK) == RVT_FALL_THROUGH) {
+ reg_val_propagate_range(ctx, rvt & ~RVT_VISITED_MASK, i, true);
+ } else { /* RVT_BRANCH_TAKEN */
+ WARN(1, "Unexpected RVT_BRANCH_TAKEN case.\n");
+ reg_val_propagate_range(ctx, rvt & ~RVT_VISITED_MASK, i, false);
+ }
+ goto restart_search;
+ }
+ /*
+ * Eventually all conditional branches have been followed on
+ * both branches and we are done. Any insn that has not been
+ * visited at this point is dead.
+ */
+
+ return 0;
+}
+
+static void jit_fill_hole(void *area, unsigned int size)
+{
+ u32 *p;
+
+ /* We are guaranteed to have aligned memory. */
+ for (p = area; size >= sizeof(u32); size -= sizeof(u32))
+ uasm_i_break(&p, BRK_BUG); /* Increments p */
+}
+
+struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
+{
+ struct bpf_prog *orig_prog = prog;
+ bool tmp_blinded = false;
+ struct bpf_prog *tmp;
+ struct bpf_binary_header *header = NULL;
+ struct jit_ctx ctx;
+ unsigned int image_size;
+ u8 *image_ptr;
+
+ if (!bpf_jit_enable || !cpu_has_mips64r2)
+ return prog;
+
+ tmp = bpf_jit_blind_constants(prog);
+ /* If blinding was requested and we failed during blinding,
+ * we must fall back to the interpreter.
+ */
+ if (IS_ERR(tmp))
+ return orig_prog;
+ if (tmp != prog) {
+ tmp_blinded = true;
+ prog = tmp;
+ }
+
+ memset(&ctx, 0, sizeof(ctx));
+
+ preempt_disable();
+ switch (current_cpu_type()) {
+ case CPU_CAVIUM_OCTEON:
+ case CPU_CAVIUM_OCTEON_PLUS:
+ case CPU_CAVIUM_OCTEON2:
+ case CPU_CAVIUM_OCTEON3:
+ ctx.use_bbit_insns = 1;
+ break;
+ default:
+ ctx.use_bbit_insns = 0;
+ }
+ preempt_enable();
+
+ ctx.offsets = kcalloc(prog->len + 1, sizeof(*ctx.offsets), GFP_KERNEL);
+ if (ctx.offsets == NULL)
+ goto out_err;
+
+ ctx.reg_val_types = kcalloc(prog->len + 1, sizeof(*ctx.reg_val_types), GFP_KERNEL);
+ if (ctx.reg_val_types == NULL)
+ goto out_err;
+
+ ctx.skf = prog;
+
+ if (reg_val_propagate(&ctx))
+ goto out_err;
+
+ /*
+ * First pass discovers used resources and instruction offsets
+ * assuming short branches are used.
+ */
+ if (build_int_body(&ctx))
+ goto out_err;
+
+ /*
+ * If no calls are made (EBPF_SAVE_RA), then tail call count
+ * in $v1, else we must save in n$s4.
+ */
+ if (ctx.flags & EBPF_SEEN_TC) {
+ if (ctx.flags & EBPF_SAVE_RA)
+ ctx.flags |= EBPF_SAVE_S4;
+ else
+ ctx.flags |= EBPF_TCC_IN_V1;
+ }
+
+ /*
+ * Second pass generates offsets, if any branches are out of
+ * range a jump-around long sequence is generated, and we have
+ * to try again from the beginning to generate the new
+ * offsets. This is done until no additional conversions are
+ * necessary.
+ */
+ do {
+ ctx.idx = 0;
+ ctx.gen_b_offsets = 1;
+ ctx.long_b_conversion = 0;
+ if (gen_int_prologue(&ctx))
+ goto out_err;
+ if (build_int_body(&ctx))
+ goto out_err;
+ if (build_int_epilogue(&ctx, MIPS_R_RA))
+ goto out_err;
+ } while (ctx.long_b_conversion);
+
+ image_size = 4 * ctx.idx;
+
+ header = bpf_jit_binary_alloc(image_size, &image_ptr,
+ sizeof(u32), jit_fill_hole);
+ if (header == NULL)
+ goto out_err;
+
+ ctx.target = (u32 *)image_ptr;
+
+ /* Third pass generates the code */
+ ctx.idx = 0;
+ if (gen_int_prologue(&ctx))
+ goto out_err;
+ if (build_int_body(&ctx))
+ goto out_err;
+ if (build_int_epilogue(&ctx, MIPS_R_RA))
+ goto out_err;
+
+ /* Update the icache */
+ flush_icache_range((unsigned long)ctx.target,
+ (unsigned long)(ctx.target + ctx.idx * sizeof(u32)));
+
+ if (bpf_jit_enable > 1)
+ /* Dump JIT code */
+ bpf_jit_dump(prog->len, image_size, 2, ctx.target);
+
+ bpf_jit_binary_lock_ro(header);
+ prog->bpf_func = (void *)ctx.target;
+ prog->jited = 1;
+ prog->jited_len = image_size;
+out_normal:
+ if (tmp_blinded)
+ bpf_jit_prog_release_other(prog, prog == orig_prog ?
+ tmp : orig_prog);
+ kfree(ctx.offsets);
+ kfree(ctx.reg_val_types);
+
+ return prog;
+
+out_err:
+ prog = orig_prog;
+ if (header)
+ bpf_jit_binary_free(header);
+ goto out_normal;
+}
diff --git a/arch/mips/netlogic/common/smp.c b/arch/mips/netlogic/common/smp.c
index bddf1ef553a4..39a300bd6cc2 100644
--- a/arch/mips/netlogic/common/smp.c
+++ b/arch/mips/netlogic/common/smp.c
@@ -122,7 +122,7 @@ static void nlm_init_secondary(void)
int hwtid;
hwtid = hard_smp_processor_id();
- current_cpu_data.core = hwtid / NLM_THREADS_PER_CORE;
+ cpu_set_core(&current_cpu_data, hwtid / NLM_THREADS_PER_CORE);
current_cpu_data.package = nlm_nodeid();
nlm_percpu_init(hwtid);
nlm_smp_irq_init(hwtid);
@@ -147,7 +147,7 @@ unsigned long nlm_next_gp;
unsigned long nlm_next_sp;
static cpumask_t phys_cpu_present_mask;
-void nlm_boot_secondary(int logical_cpu, struct task_struct *idle)
+int nlm_boot_secondary(int logical_cpu, struct task_struct *idle)
{
uint64_t picbase;
int hwtid;
@@ -161,6 +161,8 @@ void nlm_boot_secondary(int logical_cpu, struct task_struct *idle)
/* barrier for sp/gp store above */
__sync();
nlm_pic_send_ipi(picbase, hwtid, 1, 1); /* NMI */
+
+ return 0;
}
void __init nlm_smp_setup(void)
@@ -272,7 +274,7 @@ int nlm_wakeup_secondary_cpus(void)
return 0;
}
-struct plat_smp_ops nlm_smp_ops = {
+const struct plat_smp_ops nlm_smp_ops = {
.send_ipi_single = nlm_send_ipi_single,
.send_ipi_mask = nlm_send_ipi_mask,
.init_secondary = nlm_init_secondary,
diff --git a/arch/mips/netlogic/xlr/platform-flash.c b/arch/mips/netlogic/xlr/platform-flash.c
index f03131fec41d..4d1b4c003376 100644
--- a/arch/mips/netlogic/xlr/platform-flash.c
+++ b/arch/mips/netlogic/xlr/platform-flash.c
@@ -19,7 +19,7 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/physmap.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <asm/netlogic/haldefs.h>
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index c57da6f13929..c3e4c18ef8d4 100644
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -38,9 +38,9 @@ static int perfcount_irq;
#ifdef CONFIG_MIPS_MT_SMP
static int cpu_has_mipsmt_pertccounters;
#define WHAT (MIPS_PERFCTRL_MT_EN_VPE | \
- M_PERFCTL_VPEID(cpu_data[smp_processor_id()].vpe_id))
+ M_PERFCTL_VPEID(cpu_vpe_id(&current_cpu_data)))
#define vpe_id() (cpu_has_mipsmt_pertccounters ? \
- 0 : cpu_data[smp_processor_id()].vpe_id)
+ 0 : cpu_vpe_id(&current_cpu_data))
/*
* The number of bits to shift to convert between counters per core and
diff --git a/arch/mips/paravirt/paravirt-smp.c b/arch/mips/paravirt/paravirt-smp.c
index 72eb1a56c645..107d9f90d668 100644
--- a/arch/mips/paravirt/paravirt-smp.c
+++ b/arch/mips/paravirt/paravirt-smp.c
@@ -100,11 +100,12 @@ static void paravirt_smp_finish(void)
local_irq_enable();
}
-static void paravirt_boot_secondary(int cpu, struct task_struct *idle)
+static int paravirt_boot_secondary(int cpu, struct task_struct *idle)
{
paravirt_smp_gp[cpu] = (unsigned long)task_thread_info(idle);
smp_wmb();
paravirt_smp_sp[cpu] = __KSTK_TOS(idle);
+ return 0;
}
static irqreturn_t paravirt_reched_interrupt(int irq, void *dev_id)
@@ -133,7 +134,7 @@ static void paravirt_prepare_cpus(unsigned int max_cpus)
}
}
-struct plat_smp_ops paravirt_smp_ops = {
+const struct plat_smp_ops paravirt_smp_ops = {
.send_ipi_single = paravirt_send_ipi_single,
.send_ipi_mask = paravirt_send_ipi_mask,
.init_secondary = paravirt_init_secondary,
diff --git a/arch/mips/paravirt/setup.c b/arch/mips/paravirt/setup.c
index cb8448b373a7..d2ffec1409a7 100644
--- a/arch/mips/paravirt/setup.c
+++ b/arch/mips/paravirt/setup.c
@@ -14,7 +14,7 @@
#include <asm/smp-ops.h>
#include <asm/time.h>
-extern struct plat_smp_ops paravirt_smp_ops;
+extern const struct plat_smp_ops paravirt_smp_ops;
const char *get_system_type(void)
{
diff --git a/arch/mips/pci/fixup-capcella.c b/arch/mips/pci/fixup-capcella.c
index 1c02f5737367..b4c263f16b15 100644
--- a/arch/mips/pci/fixup-capcella.c
+++ b/arch/mips/pci/fixup-capcella.c
@@ -32,13 +32,13 @@
#define INTC PC104PLUS_INTC_IRQ
#define INTD PC104PLUS_INTD_IRQ
-static char irq_tab_capcella[][5] __initdata = {
+static char irq_tab_capcella[][5] = {
[11] = { -1, INT1, INT1, INT1, INT1 },
[12] = { -1, INT2, INT2, INT2, INT2 },
[14] = { -1, INTA, INTB, INTC, INTD }
};
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
return irq_tab_capcella[slot][pin];
}
diff --git a/arch/mips/pci/fixup-cobalt.c b/arch/mips/pci/fixup-cobalt.c
index b3ab59318d91..44be65c3e6bb 100644
--- a/arch/mips/pci/fixup-cobalt.c
+++ b/arch/mips/pci/fixup-cobalt.c
@@ -147,7 +147,7 @@ static void qube_raq_via_board_id_fixup(struct pci_dev *dev)
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0,
qube_raq_via_board_id_fixup);
-static char irq_tab_qube1[] __initdata = {
+static char irq_tab_qube1[] = {
[COBALT_PCICONF_CPU] = 0,
[COBALT_PCICONF_ETH0] = QUBE1_ETH0_IRQ,
[COBALT_PCICONF_RAQSCSI] = SCSI_IRQ,
@@ -156,7 +156,7 @@ static char irq_tab_qube1[] __initdata = {
[COBALT_PCICONF_ETH1] = 0
};
-static char irq_tab_cobalt[] __initdata = {
+static char irq_tab_cobalt[] = {
[COBALT_PCICONF_CPU] = 0,
[COBALT_PCICONF_ETH0] = ETH0_IRQ,
[COBALT_PCICONF_RAQSCSI] = SCSI_IRQ,
@@ -165,7 +165,7 @@ static char irq_tab_cobalt[] __initdata = {
[COBALT_PCICONF_ETH1] = ETH1_IRQ
};
-static char irq_tab_raq2[] __initdata = {
+static char irq_tab_raq2[] = {
[COBALT_PCICONF_CPU] = 0,
[COBALT_PCICONF_ETH0] = ETH0_IRQ,
[COBALT_PCICONF_RAQSCSI] = RAQ2_SCSI_IRQ,
@@ -174,7 +174,7 @@ static char irq_tab_raq2[] __initdata = {
[COBALT_PCICONF_ETH1] = ETH1_IRQ
};
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
if (cobalt_board_id <= COBALT_BRD_ID_QUBE1)
return irq_tab_qube1[slot];
diff --git a/arch/mips/pci/fixup-emma2rh.c b/arch/mips/pci/fixup-emma2rh.c
index 19caf775c206..c31cb6af1cd0 100644
--- a/arch/mips/pci/fixup-emma2rh.c
+++ b/arch/mips/pci/fixup-emma2rh.c
@@ -43,7 +43,7 @@
*/
#define MAX_SLOT_NUM 10
-static unsigned char irq_map[][5] __initdata = {
+static unsigned char irq_map[][5] = {
[3] = {0, MARKEINS_PCI_IRQ_INTB, MARKEINS_PCI_IRQ_INTC,
MARKEINS_PCI_IRQ_INTD, 0,},
[4] = {0, MARKEINS_PCI_IRQ_INTA, 0, 0, 0,},
@@ -85,7 +85,7 @@ static void emma2rh_pci_host_fixup(struct pci_dev *dev)
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_EMMA2RH,
emma2rh_pci_host_fixup);
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
return irq_map[slot][pin];
}
diff --git a/arch/mips/pci/fixup-fuloong2e.c b/arch/mips/pci/fixup-fuloong2e.c
index 50da773faede..b47c2771dc99 100644
--- a/arch/mips/pci/fixup-fuloong2e.c
+++ b/arch/mips/pci/fixup-fuloong2e.c
@@ -19,7 +19,7 @@
/* South bridge slot number is set by the pci probe process */
static u8 sb_slot = 5;
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int irq = 0;
diff --git a/arch/mips/pci/fixup-ip32.c b/arch/mips/pci/fixup-ip32.c
index 133685e215ee..c6ec18a07e63 100644
--- a/arch/mips/pci/fixup-ip32.c
+++ b/arch/mips/pci/fixup-ip32.c
@@ -21,7 +21,7 @@
#define INTB MACEPCI_SHARED0_IRQ
#define INTC MACEPCI_SHARED1_IRQ
#define INTD MACEPCI_SHARED2_IRQ
-static char irq_tab_mace[][5] __initdata = {
+static char irq_tab_mace[][5] = {
/* Dummy INT#A INT#B INT#C INT#D */
{0, 0, 0, 0, 0}, /* This is placeholder row - never used */
{0, SCSI0, SCSI0, SCSI0, SCSI0},
@@ -39,7 +39,7 @@ static char irq_tab_mace[][5] __initdata = {
* irqs. I suppose a device without a pin A will thank us for doing it
* right if there exists such a broken piece of crap.
*/
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
return irq_tab_mace[slot][pin];
}
diff --git a/arch/mips/pci/fixup-jmr3927.c b/arch/mips/pci/fixup-jmr3927.c
index 0f1069527cba..d3102eeea898 100644
--- a/arch/mips/pci/fixup-jmr3927.c
+++ b/arch/mips/pci/fixup-jmr3927.c
@@ -31,7 +31,7 @@
#include <asm/txx9/pci.h>
#include <asm/txx9/jmr3927.h>
-int __init jmr3927_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int jmr3927_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
unsigned char irq = pin;
diff --git a/arch/mips/pci/fixup-lantiq.c b/arch/mips/pci/fixup-lantiq.c
index 2b5427d3f35c..81530a13b349 100644
--- a/arch/mips/pci/fixup-lantiq.c
+++ b/arch/mips/pci/fixup-lantiq.c
@@ -23,7 +23,7 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
return 0;
}
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
return of_irq_parse_and_map_pci(dev, slot, pin);
}
diff --git a/arch/mips/pci/fixup-lemote2f.c b/arch/mips/pci/fixup-lemote2f.c
index 95ab9a1bd010..20cdfdc08938 100644
--- a/arch/mips/pci/fixup-lemote2f.c
+++ b/arch/mips/pci/fixup-lemote2f.c
@@ -30,7 +30,7 @@
#define PCID 7
/* all the pci device has the PCIA pin, check the datasheet. */
-static char irq_tab[][5] __initdata = {
+static char irq_tab[][5] = {
/* INTA INTB INTC INTD */
{0, 0, 0, 0, 0}, /* 11: Unused */
{0, 0, 0, 0, 0}, /* 12: Unused */
@@ -51,7 +51,7 @@ static char irq_tab[][5] __initdata = {
{0, 0, 0, 0, 0}, /* 27: Unused */
};
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int virq;
diff --git a/arch/mips/pci/fixup-loongson3.c b/arch/mips/pci/fixup-loongson3.c
index 2b6d5e196f99..8a741c2c6685 100644
--- a/arch/mips/pci/fixup-loongson3.c
+++ b/arch/mips/pci/fixup-loongson3.c
@@ -32,7 +32,7 @@ static void print_fixup_info(const struct pci_dev *pdev)
pdev->vendor, pdev->device, pdev->irq);
}
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
print_fixup_info(dev);
return dev->irq;
diff --git a/arch/mips/pci/fixup-malta.c b/arch/mips/pci/fixup-malta.c
index 40e920c653cc..3ec85331795e 100644
--- a/arch/mips/pci/fixup-malta.c
+++ b/arch/mips/pci/fixup-malta.c
@@ -12,7 +12,7 @@
static char pci_irq[5] = {
};
-static char irq_tab[][5] __initdata = {
+static char irq_tab[][5] = {
/* INTA INTB INTC INTD */
{0, 0, 0, 0, 0 }, /* 0: GT64120 PCI bridge */
{0, 0, 0, 0, 0 }, /* 1: Unused */
@@ -38,7 +38,7 @@ static char irq_tab[][5] __initdata = {
{0, PCID, PCIA, PCIB, PCIC } /* 21: PCI Slot 4 */
};
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int virq;
virq = irq_tab[slot][pin];
diff --git a/arch/mips/pci/fixup-mpc30x.c b/arch/mips/pci/fixup-mpc30x.c
index 8e4f8288eca2..66eaf456bc89 100644
--- a/arch/mips/pci/fixup-mpc30x.c
+++ b/arch/mips/pci/fixup-mpc30x.c
@@ -22,19 +22,19 @@
#include <asm/vr41xx/mpc30x.h>
-static const int internal_func_irqs[] __initconst = {
+static const int internal_func_irqs[] = {
VRC4173_CASCADE_IRQ,
VRC4173_AC97_IRQ,
VRC4173_USB_IRQ,
};
-static const int irq_tab_mpc30x[] __initconst = {
+static const int irq_tab_mpc30x[] = {
[12] = VRC4173_PCMCIA1_IRQ,
[13] = VRC4173_PCMCIA2_IRQ,
[29] = MQ200_IRQ,
};
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
if (slot == 30)
return internal_func_irqs[PCI_FUNC(dev->devfn)];
diff --git a/arch/mips/pci/fixup-pmcmsp.c b/arch/mips/pci/fixup-pmcmsp.c
index fab405c21c2f..4ad2ef02087b 100644
--- a/arch/mips/pci/fixup-pmcmsp.c
+++ b/arch/mips/pci/fixup-pmcmsp.c
@@ -47,7 +47,7 @@
#if defined(CONFIG_PMC_MSP7120_GW)
/* Garibaldi Board IRQ wiring to PCI slots */
-static char irq_tab[][5] __initdata = {
+static char irq_tab[][5] = {
/* INTA INTB INTC INTD */
{0, 0, 0, 0, 0 }, /* (AD[0]): Unused */
{0, 0, 0, 0, 0 }, /* (AD[1]): Unused */
@@ -86,7 +86,7 @@ static char irq_tab[][5] __initdata = {
#elif defined(CONFIG_PMC_MSP7120_EVAL)
/* MSP7120 Eval Board IRQ wiring to PCI slots */
-static char irq_tab[][5] __initdata = {
+static char irq_tab[][5] = {
/* INTA INTB INTC INTD */
{0, 0, 0, 0, 0 }, /* (AD[0]): Unused */
{0, 0, 0, 0, 0 }, /* (AD[1]): Unused */
@@ -125,7 +125,7 @@ static char irq_tab[][5] __initdata = {
#else
/* Unknown board -- don't assign any IRQs */
-static char irq_tab[][5] __initdata = {
+static char irq_tab[][5] = {
/* INTA INTB INTC INTD */
{0, 0, 0, 0, 0 }, /* (AD[0]): Unused */
{0, 0, 0, 0, 0 }, /* (AD[1]): Unused */
@@ -202,7 +202,7 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
* RETURNS: IRQ number
*
****************************************************************************/
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
#if !defined(CONFIG_PMC_MSP7120_GW) && !defined(CONFIG_PMC_MSP7120_EVAL)
printk(KERN_WARNING "PCI: unknown board, no PCI IRQs assigned.\n");
diff --git a/arch/mips/pci/fixup-rbtx4927.c b/arch/mips/pci/fixup-rbtx4927.c
index 321db265829c..d6aaed1d6be9 100644
--- a/arch/mips/pci/fixup-rbtx4927.c
+++ b/arch/mips/pci/fixup-rbtx4927.c
@@ -36,7 +36,7 @@
#include <asm/txx9/pci.h>
#include <asm/txx9/rbtx4927.h>
-int __init rbtx4927_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int rbtx4927_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
unsigned char irq = pin;
diff --git a/arch/mips/pci/fixup-rbtx4938.c b/arch/mips/pci/fixup-rbtx4938.c
index a80579af609b..ff22a22db73e 100644
--- a/arch/mips/pci/fixup-rbtx4938.c
+++ b/arch/mips/pci/fixup-rbtx4938.c
@@ -13,7 +13,7 @@
#include <asm/txx9/pci.h>
#include <asm/txx9/rbtx4938.h>
-int __init rbtx4938_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int rbtx4938_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int irq = tx4938_pcic1_map_irq(dev, slot);
diff --git a/arch/mips/pci/fixup-sni.c b/arch/mips/pci/fixup-sni.c
index f67ebeeb4200..adb9a58641e8 100644
--- a/arch/mips/pci/fixup-sni.c
+++ b/arch/mips/pci/fixup-sni.c
@@ -40,7 +40,7 @@
* seem to be a documentation error. At least on my RM200C the Cirrus
* Logic CL-GD5434 VGA is device 3.
*/
-static char irq_tab_rm200[8][5] __initdata = {
+static char irq_tab_rm200[8][5] = {
/* INTA INTB INTC INTD */
{ 0, 0, 0, 0, 0 }, /* EISA bridge */
{ SCSI, SCSI, SCSI, SCSI, SCSI }, /* SCSI */
@@ -57,7 +57,7 @@ static char irq_tab_rm200[8][5] __initdata = {
*
* The VGA card is optional for RM300 systems.
*/
-static char irq_tab_rm300d[8][5] __initdata = {
+static char irq_tab_rm300d[8][5] = {
/* INTA INTB INTC INTD */
{ 0, 0, 0, 0, 0 }, /* EISA bridge */
{ SCSI, SCSI, SCSI, SCSI, SCSI }, /* SCSI */
@@ -69,7 +69,7 @@ static char irq_tab_rm300d[8][5] __initdata = {
{ 0, INTD, INTA, INTB, INTC }, /* Slot 4 */
};
-static char irq_tab_rm300e[5][5] __initdata = {
+static char irq_tab_rm300e[5][5] = {
/* INTA INTB INTC INTD */
{ 0, 0, 0, 0, 0 }, /* HOST bridge */
{ SCSI, SCSI, SCSI, SCSI, SCSI }, /* SCSI */
@@ -96,7 +96,7 @@ static char irq_tab_rm300e[5][5] __initdata = {
#define INTC PCIT_IRQ_INTC
#define INTD PCIT_IRQ_INTD
-static char irq_tab_pcit[13][5] __initdata = {
+static char irq_tab_pcit[13][5] = {
/* INTA INTB INTC INTD */
{ 0, 0, 0, 0, 0 }, /* HOST bridge */
{ SCSI0, SCSI0, SCSI0, SCSI0, SCSI0 }, /* SCSI */
@@ -113,7 +113,7 @@ static char irq_tab_pcit[13][5] __initdata = {
{ 0, INTA, INTB, INTC, INTD }, /* Slot 5 */
};
-static char irq_tab_pcit_cplus[13][5] __initdata = {
+static char irq_tab_pcit_cplus[13][5] = {
/* INTA INTB INTC INTD */
{ 0, 0, 0, 0, 0 }, /* HOST bridge */
{ 0, INTB, INTC, INTD, INTA }, /* PCI Slot 9 */
@@ -130,7 +130,7 @@ static inline int is_rm300_revd(void)
return (csmsr & 0xa0) == 0x20;
}
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
switch (sni_brd_type) {
case SNI_BRD_PCI_TOWER_CPLUS:
diff --git a/arch/mips/pci/fixup-tb0219.c b/arch/mips/pci/fixup-tb0219.c
index d0b0083fbd27..cc581535f257 100644
--- a/arch/mips/pci/fixup-tb0219.c
+++ b/arch/mips/pci/fixup-tb0219.c
@@ -23,7 +23,7 @@
#include <asm/vr41xx/tb0219.h>
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int irq = -1;
diff --git a/arch/mips/pci/fixup-tb0226.c b/arch/mips/pci/fixup-tb0226.c
index 4196ccf3ea3d..b827b5cad5fd 100644
--- a/arch/mips/pci/fixup-tb0226.c
+++ b/arch/mips/pci/fixup-tb0226.c
@@ -23,7 +23,7 @@
#include <asm/vr41xx/giu.h>
#include <asm/vr41xx/tb0226.h>
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int irq = -1;
diff --git a/arch/mips/pci/fixup-tb0287.c b/arch/mips/pci/fixup-tb0287.c
index 8c5039ed75d7..98f26285f2e3 100644
--- a/arch/mips/pci/fixup-tb0287.c
+++ b/arch/mips/pci/fixup-tb0287.c
@@ -22,7 +22,7 @@
#include <asm/vr41xx/tb0287.h>
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
unsigned char bus;
int irq = -1;
diff --git a/arch/mips/pci/pci-alchemy.c b/arch/mips/pci/pci-alchemy.c
index e99ca7702d8a..f15ec98de2de 100644
--- a/arch/mips/pci/pci-alchemy.c
+++ b/arch/mips/pci/pci-alchemy.c
@@ -522,7 +522,7 @@ static int __init alchemy_pci_init(void)
arch_initcall(alchemy_pci_init);
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
struct alchemy_pci_context *ctx = dev->sysdata;
if (ctx && ctx->board_map_irq)
diff --git a/arch/mips/pci/pci-bcm47xx.c b/arch/mips/pci/pci-bcm47xx.c
index 76f16eaed0ad..230d7dd273e2 100644
--- a/arch/mips/pci/pci-bcm47xx.c
+++ b/arch/mips/pci/pci-bcm47xx.c
@@ -28,7 +28,7 @@
#include <linux/bcma/bcma.h>
#include <bcm47xx.h>
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
return 0;
}
diff --git a/arch/mips/pci/pci-lasat.c b/arch/mips/pci/pci-lasat.c
index 40d2797d2bc4..47f4ee6bbb3b 100644
--- a/arch/mips/pci/pci-lasat.c
+++ b/arch/mips/pci/pci-lasat.c
@@ -61,7 +61,7 @@ arch_initcall(lasat_pci_setup);
#define LASAT_IRQ_PCIC (LASAT_IRQ_BASE + 7)
#define LASAT_IRQ_PCID (LASAT_IRQ_BASE + 8)
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
switch (slot) {
case 1:
diff --git a/arch/mips/pci/pci-legacy.c b/arch/mips/pci/pci-legacy.c
index 3a84f6c0c840..0c65c38e05d6 100644
--- a/arch/mips/pci/pci-legacy.c
+++ b/arch/mips/pci/pci-legacy.c
@@ -78,6 +78,12 @@ static void pcibios_scanbus(struct pci_controller *hose)
static int need_domain_info;
LIST_HEAD(resources);
struct pci_bus *bus;
+ struct pci_host_bridge *bridge;
+ int ret;
+
+ bridge = pci_alloc_host_bridge(0);
+ if (!bridge)
+ return;
if (hose->get_busno && pci_has_flag(PCI_PROBE_ONLY))
next_busno = (*hose->get_busno)();
@@ -86,20 +92,25 @@ static void pcibios_scanbus(struct pci_controller *hose)
hose->mem_resource, hose->mem_offset);
pci_add_resource_offset(&resources,
hose->io_resource, hose->io_offset);
- pci_add_resource_offset(&resources,
- hose->busn_resource, hose->busn_offset);
- bus = pci_scan_root_bus(NULL, next_busno, hose->pci_ops, hose,
- &resources);
- hose->bus = bus;
+ pci_add_resource(&resources, hose->busn_resource);
+ list_splice_init(&resources, &bridge->windows);
+ bridge->dev.parent = NULL;
+ bridge->sysdata = hose;
+ bridge->busnr = next_busno;
+ bridge->ops = hose->pci_ops;
+ bridge->swizzle_irq = pci_common_swizzle;
+ bridge->map_irq = pcibios_map_irq;
+ ret = pci_scan_root_bus_bridge(bridge);
+ if (ret) {
+ pci_free_host_bridge(bridge);
+ return;
+ }
+
+ hose->bus = bus = bridge->bus;
need_domain_info = need_domain_info || pci_domain_nr(bus);
set_pci_need_domain_info(hose, need_domain_info);
- if (!bus) {
- pci_free_resource_list(&resources);
- return;
- }
-
next_busno = bus->busn_res.end + 1;
/* Don't allow 8-bit bus number overflow inside the hose -
reserve some space for bridges. */
@@ -128,7 +139,7 @@ void pci_load_of_ranges(struct pci_controller *hose, struct device_node *node)
struct of_pci_range range;
struct of_pci_range_parser parser;
- pr_info("PCI host bridge %s ranges:\n", node->full_name);
+ pr_info("PCI host bridge %pOF ranges:\n", node);
hose->of_node = node;
if (of_pci_range_parser_init(&parser, node))
@@ -225,8 +236,6 @@ static int __init pcibios_init(void)
list_for_each_entry(hose, &controllers, list)
pcibios_scanbus(hose);
- pci_fixup_irqs(pci_common_swizzle, pcibios_map_irq);
-
pci_initialized = 1;
return 0;
diff --git a/arch/mips/pci/pci-malta.c b/arch/mips/pci/pci-malta.c
index cfbbc3e3e914..88e625fb3a47 100644
--- a/arch/mips/pci/pci-malta.c
+++ b/arch/mips/pci/pci-malta.c
@@ -27,7 +27,7 @@
#include <linux/init.h>
#include <asm/gt64120.h>
-#include <asm/mips-cm.h>
+#include <asm/mips-cps.h>
#include <asm/mips-boards/generic.h>
#include <asm/mips-boards/bonito64.h>
#include <asm/mips-boards/msc01_pci.h>
@@ -201,7 +201,7 @@ void __init mips_pcibios_init(void)
msc_mem_resource.start = start & mask;
msc_mem_resource.end = (start & mask) | ~mask;
msc_controller.mem_offset = (start & mask) - (map & mask);
- if (mips_cm_numiocu()) {
+ if (mips_cps_numiocu(0)) {
write_gcr_reg0_base(start);
write_gcr_reg0_mask(mask |
CM_GCR_REGn_MASK_CMTGT_IOCU0);
@@ -213,7 +213,7 @@ void __init mips_pcibios_init(void)
msc_io_resource.end = (map & mask) | ~mask;
msc_controller.io_offset = 0;
ioport_resource.end = ~mask;
- if (mips_cm_numiocu()) {
+ if (mips_cps_numiocu(0)) {
write_gcr_reg1_base(start);
write_gcr_reg1_mask(mask |
CM_GCR_REGn_MASK_CMTGT_IOCU0);
diff --git a/arch/mips/pci/pci-mt7620.c b/arch/mips/pci/pci-mt7620.c
index 628c5132b3d8..90fba9bf98da 100644
--- a/arch/mips/pci/pci-mt7620.c
+++ b/arch/mips/pci/pci-mt7620.c
@@ -291,7 +291,7 @@ static int mt7620_pci_probe(struct platform_device *pdev)
IORESOURCE_MEM, 1);
u32 val = 0;
- rstpcie0 = devm_reset_control_get(&pdev->dev, "pcie0");
+ rstpcie0 = devm_reset_control_get_exclusive(&pdev->dev, "pcie0");
if (IS_ERR(rstpcie0))
return PTR_ERR(rstpcie0);
@@ -361,7 +361,7 @@ static int mt7620_pci_probe(struct platform_device *pdev)
return 0;
}
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
u16 cmd;
u32 val;
diff --git a/arch/mips/pci/pci-octeon.c b/arch/mips/pci/pci-octeon.c
index 9ee01936862e..3e92a06fa772 100644
--- a/arch/mips/pci/pci-octeon.c
+++ b/arch/mips/pci/pci-octeon.c
@@ -59,8 +59,7 @@ union octeon_pci_address {
} s;
};
-int __initconst (*octeon_pcibios_map_irq)(const struct pci_dev *dev,
- u8 slot, u8 pin);
+int (*octeon_pcibios_map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
enum octeon_dma_bar_type octeon_dma_bar_type = OCTEON_DMA_BAR_TYPE_INVALID;
/**
@@ -74,7 +73,7 @@ enum octeon_dma_bar_type octeon_dma_bar_type = OCTEON_DMA_BAR_TYPE_INVALID;
* as it goes through each bridge.
* Returns Interrupt number for the device
*/
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
if (octeon_pcibios_map_irq)
return octeon_pcibios_map_irq(dev, slot, pin);
diff --git a/arch/mips/pci/pci-rt2880.c b/arch/mips/pci/pci-rt2880.c
index d6360fe73d05..711cdccdf65b 100644
--- a/arch/mips/pci/pci-rt2880.c
+++ b/arch/mips/pci/pci-rt2880.c
@@ -181,7 +181,7 @@ static inline void rt2880_pci_write_u32(unsigned long reg, u32 val)
spin_unlock_irqrestore(&rt2880_pci_lock, flags);
}
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
u16 cmd;
int irq = -1;
diff --git a/arch/mips/pci/pci-rt3883.c b/arch/mips/pci/pci-rt3883.c
index 3520e9b414e7..958899ffe99c 100644
--- a/arch/mips/pci/pci-rt3883.c
+++ b/arch/mips/pci/pci-rt3883.c
@@ -207,8 +207,7 @@ static int rt3883_pci_irq_init(struct device *dev,
irq = irq_of_parse_and_map(rpc->intc_of_node, 0);
if (irq == 0) {
- dev_err(dev, "%s has no IRQ",
- of_node_full_name(rpc->intc_of_node));
+ dev_err(dev, "%pOF has no IRQ", rpc->intc_of_node);
return -EINVAL;
}
@@ -438,8 +437,8 @@ static int rt3883_pci_probe(struct platform_device *pdev)
}
if (!rpc->intc_of_node) {
- dev_err(dev, "%s has no %s child node",
- of_node_full_name(rpc->intc_of_node),
+ dev_err(dev, "%pOF has no %s child node",
+ rpc->intc_of_node,
"interrupt controller");
return -EINVAL;
}
@@ -454,8 +453,8 @@ static int rt3883_pci_probe(struct platform_device *pdev)
}
if (!rpc->pci_controller.of_node) {
- dev_err(dev, "%s has no %s child node",
- of_node_full_name(rpc->intc_of_node),
+ dev_err(dev, "%pOF has no %s child node",
+ rpc->intc_of_node,
"PCI host bridge");
err = -EINVAL;
goto err_put_intc_node;
@@ -565,7 +564,7 @@ err_put_intc_node:
return err;
}
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
return of_irq_parse_and_map_pci(dev, slot, pin);
}
diff --git a/arch/mips/pci/pci-tx4938.c b/arch/mips/pci/pci-tx4938.c
index 000c0e1f9ef8..a6418460e3c4 100644
--- a/arch/mips/pci/pci-tx4938.c
+++ b/arch/mips/pci/pci-tx4938.c
@@ -112,7 +112,7 @@ int __init tx4938_pciclk66_setup(void)
return pciclk;
}
-int __init tx4938_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
+int tx4938_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
{
if (get_tx4927_pcicptr(dev->bus->sysdata) == tx4938_pcic1ptr) {
switch (slot) {
diff --git a/arch/mips/pci/pci-tx4939.c b/arch/mips/pci/pci-tx4939.c
index 9d6acc00f348..09a65f7dbe7c 100644
--- a/arch/mips/pci/pci-tx4939.c
+++ b/arch/mips/pci/pci-tx4939.c
@@ -48,7 +48,7 @@ void __init tx4939_report_pci1clk(void)
((pciclk + 50000) / 100000) % 10);
}
-int __init tx4939_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
+int tx4939_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
{
if (get_tx4927_pcicptr(dev->bus->sysdata) == tx4939_pcic1ptr) {
switch (slot) {
@@ -68,7 +68,7 @@ int __init tx4939_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
return -1;
}
-int __init tx4939_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int tx4939_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int irq = tx4939_pcic1_map_irq(dev, slot);
diff --git a/arch/mips/pci/pci-xlp.c b/arch/mips/pci/pci-xlp.c
index 7babf01600cb..9eff9137f78e 100644
--- a/arch/mips/pci/pci-xlp.c
+++ b/arch/mips/pci/pci-xlp.c
@@ -205,7 +205,7 @@ int xlp_socdev_to_node(const struct pci_dev *lnkdev)
return PCI_SLOT(lnkdev->devfn) / 8;
}
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
struct pci_dev *lnkdev;
int lnkfunc, node;
diff --git a/arch/mips/pci/pci-xlr.c b/arch/mips/pci/pci-xlr.c
index 26d2dabef281..2a1c81a129ba 100644
--- a/arch/mips/pci/pci-xlr.c
+++ b/arch/mips/pci/pci-xlr.c
@@ -315,7 +315,7 @@ static void xls_pcie_ack_b(struct irq_data *d)
}
}
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
return get_irq_vector(dev);
}
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index bd67ac74fe2d..9632436d74d7 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -28,16 +28,15 @@ EXPORT_SYMBOL(PCIBIOS_MIN_MEM);
static int __init pcibios_set_cache_line_size(void)
{
- struct cpuinfo_mips *c = &current_cpu_data;
unsigned int lsize;
/*
* Set PCI cacheline size to that of the highest level in the
* cache hierarchy.
*/
- lsize = c->dcache.linesz;
- lsize = c->scache.linesz ? : lsize;
- lsize = c->tcache.linesz ? : lsize;
+ lsize = cpu_dcache_line_size();
+ lsize = cpu_scache_line_size() ? : lsize;
+ lsize = cpu_tcache_line_size() ? : lsize;
BUG_ON(!lsize);
diff --git a/arch/mips/pci/pcie-octeon.c b/arch/mips/pci/pcie-octeon.c
index ad3584dbc9d7..fd2887415bc8 100644
--- a/arch/mips/pci/pcie-octeon.c
+++ b/arch/mips/pci/pcie-octeon.c
@@ -1464,8 +1464,7 @@ static int cvmx_pcie_rc_initialize(int pcie_port)
* as it goes through each bridge.
* Returns Interrupt number for the device
*/
-int __init octeon_pcie_pcibios_map_irq(const struct pci_dev *dev,
- u8 slot, u8 pin)
+int octeon_pcie_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
/*
* The EBH5600 board with the PCI to PCIe bridge mistakenly
diff --git a/arch/mips/pic32/pic32mzda/time.c b/arch/mips/pic32/pic32mzda/time.c
index 62a0a78b6c64..1894e50939b5 100644
--- a/arch/mips/pic32/pic32mzda/time.c
+++ b/arch/mips/pic32/pic32mzda/time.c
@@ -64,5 +64,5 @@ void __init plat_time_init(void)
pr_info("CPU Clock: %ldMHz\n", rate / 1000000);
mips_hpt_frequency = rate / 2;
- clocksource_probe();
+ timer_probe();
}
diff --git a/arch/mips/pistachio/init.c b/arch/mips/pistachio/init.c
index 1c91cad7988f..0b06c953d293 100644
--- a/arch/mips/pistachio/init.c
+++ b/arch/mips/pistachio/init.c
@@ -19,8 +19,7 @@
#include <asm/dma-coherence.h>
#include <asm/fw/fw.h>
#include <asm/mips-boards/generic.h>
-#include <asm/mips-cm.h>
-#include <asm/mips-cpc.h>
+#include <asm/mips-cps.h>
#include <asm/prom.h>
#include <asm/smp-ops.h>
#include <asm/traps.h>
diff --git a/arch/mips/pistachio/irq.c b/arch/mips/pistachio/irq.c
index 0a6b24c24652..709a8219073a 100644
--- a/arch/mips/pistachio/irq.c
+++ b/arch/mips/pistachio/irq.c
@@ -10,7 +10,6 @@
#include <linux/init.h>
#include <linux/irqchip.h>
-#include <linux/irqchip/mips-gic.h>
#include <linux/kernel.h>
#include <asm/cpu-features.h>
diff --git a/arch/mips/pistachio/time.c b/arch/mips/pistachio/time.c
index 1022201b2beb..8a6af9b76202 100644
--- a/arch/mips/pistachio/time.c
+++ b/arch/mips/pistachio/time.c
@@ -12,9 +12,9 @@
#include <linux/clk-provider.h>
#include <linux/clocksource.h>
#include <linux/init.h>
-#include <linux/irqchip/mips-gic.h>
#include <linux/of.h>
+#include <asm/mips-cps.h>
#include <asm/time.h>
unsigned int get_c0_compare_int(void)
@@ -39,7 +39,7 @@ void __init plat_time_init(void)
struct clk *clk;
of_clk_init(NULL);
- clocksource_probe();
+ timer_probe();
np = of_get_cpu_node(0, NULL);
if (!np) {
diff --git a/arch/mips/pmcs-msp71xx/msp_smp.c b/arch/mips/pmcs-msp71xx/msp_smp.c
index ffa0f7101a97..2b08242ade62 100644
--- a/arch/mips/pmcs-msp71xx/msp_smp.c
+++ b/arch/mips/pmcs-msp71xx/msp_smp.c
@@ -22,6 +22,8 @@
#include <linux/smp.h>
#include <linux/interrupt.h>
+#include <asm/setup.h>
+
#ifdef CONFIG_MIPS_MT_SMP
#define MIPS_CPU_IPI_RESCHED_IRQ 0 /* SW int 0 for resched */
#define MIPS_CPU_IPI_CALL_IRQ 1 /* SW int 1 for call */
diff --git a/arch/mips/pnx833x/common/platform.c b/arch/mips/pnx833x/common/platform.c
index 7cf4eb50fc72..a7a4e9f5146d 100644
--- a/arch/mips/pnx833x/common/platform.c
+++ b/arch/mips/pnx833x/common/platform.c
@@ -30,7 +30,7 @@
#include <linux/resource.h>
#include <linux/serial.h>
#include <linux/serial_pnx8xxx.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <irq.h>
diff --git a/arch/mips/ralink/Kconfig b/arch/mips/ralink/Kconfig
index 9825dee10bc1..b4627080b828 100644
--- a/arch/mips/ralink/Kconfig
+++ b/arch/mips/ralink/Kconfig
@@ -4,7 +4,7 @@ config CLKEVT_RT3352
bool
depends on SOC_RT305X || SOC_MT7620
default y
- select CLKSRC_OF
+ select TIMER_OF
select CLKSRC_MMIO
config RALINK_ILL_ACC
@@ -82,6 +82,16 @@ choice
depends on SOC_MT7620
select BUILTIN_DTB
+ config DTB_OMEGA2P
+ bool "Onion Omega2+"
+ depends on SOC_MT7620
+ select BUILTIN_DTB
+
+ config DTB_VOCORE2
+ bool "VoCore2"
+ depends on SOC_MT7620
+ select BUILTIN_DTB
+
endchoice
endif
diff --git a/arch/mips/ralink/cevt-rt3352.c b/arch/mips/ralink/cevt-rt3352.c
index b8a1376165b0..92f284d2b802 100644
--- a/arch/mips/ralink/cevt-rt3352.c
+++ b/arch/mips/ralink/cevt-rt3352.c
@@ -152,4 +152,4 @@ static int __init ralink_systick_init(struct device_node *np)
return 0;
}
-CLOCKSOURCE_OF_DECLARE(systick, "ralink,cevt-systick", ralink_systick_init);
+TIMER_OF_DECLARE(systick, "ralink,cevt-systick", ralink_systick_init);
diff --git a/arch/mips/ralink/clk.c b/arch/mips/ralink/clk.c
index df795885eace..1b7df115eb60 100644
--- a/arch/mips/ralink/clk.c
+++ b/arch/mips/ralink/clk.c
@@ -53,6 +53,9 @@ EXPORT_SYMBOL_GPL(clk_disable);
unsigned long clk_get_rate(struct clk *clk)
{
+ if (!clk)
+ return 0;
+
return clk->rate;
}
EXPORT_SYMBOL_GPL(clk_get_rate);
@@ -82,5 +85,5 @@ void __init plat_time_init(void)
pr_info("CPU Clock: %ldMHz\n", clk_get_rate(clk) / 1000000);
mips_hpt_frequency = clk_get_rate(clk) / 2;
clk_put(clk);
- clocksource_probe();
+ timer_probe();
}
diff --git a/arch/mips/ralink/irq-gic.c b/arch/mips/ralink/irq-gic.c
index 2058280450b5..bda576f2cad8 100644
--- a/arch/mips/ralink/irq-gic.c
+++ b/arch/mips/ralink/irq-gic.c
@@ -11,7 +11,7 @@
#include <linux/of.h>
#include <linux/irqchip.h>
-#include <linux/irqchip/mips-gic.h>
+#include <asm/mips-cps.h>
int get_c0_perfcount_int(void)
{
diff --git a/arch/mips/ralink/mt7620.c b/arch/mips/ralink/mt7620.c
index 094a0ee4af46..9be8b08ae46b 100644
--- a/arch/mips/ralink/mt7620.c
+++ b/arch/mips/ralink/mt7620.c
@@ -12,6 +12,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/bug.h>
#include <asm/mipsregs.h>
#include <asm/mach-ralink/ralink_regs.h>
diff --git a/arch/mips/ralink/mt7621.c b/arch/mips/ralink/mt7621.c
index 0695c2d64e49..1b274742077d 100644
--- a/arch/mips/ralink/mt7621.c
+++ b/arch/mips/ralink/mt7621.c
@@ -12,8 +12,7 @@
#include <asm/mipsregs.h>
#include <asm/smp-ops.h>
-#include <asm/mips-cm.h>
-#include <asm/mips-cpc.h>
+#include <asm/mips-cps.h>
#include <asm/mach-ralink/ralink_regs.h>
#include <asm/mach-ralink/mt7621.h>
@@ -199,7 +198,7 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
mips_cm_probe();
mips_cpc_probe();
- if (mips_cm_numiocu()) {
+ if (mips_cps_numiocu(0)) {
/*
* mips_cm_probe() wipes out bootloader
* config for CM regions and we have to configure them
diff --git a/arch/mips/ralink/timer-gic.c b/arch/mips/ralink/timer-gic.c
index 069771dbec42..b5f07d21fcf2 100644
--- a/arch/mips/ralink/timer-gic.c
+++ b/arch/mips/ralink/timer-gic.c
@@ -20,5 +20,5 @@ void __init plat_time_init(void)
ralink_of_remap();
of_clk_init(NULL);
- clocksource_probe();
+ timer_probe();
}
diff --git a/arch/mips/rb532/devices.c b/arch/mips/rb532/devices.c
index 0966adccf520..32ea3e6731d6 100644
--- a/arch/mips/rb532/devices.c
+++ b/arch/mips/rb532/devices.c
@@ -20,7 +20,7 @@
#include <linux/ctype.h>
#include <linux/string.h>
#include <linux/platform_device.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/gpio.h>
diff --git a/arch/mips/sgi-ip22/ip22-gio.c b/arch/mips/sgi-ip22/ip22-gio.c
index cdf187600010..b225033aade6 100644
--- a/arch/mips/sgi-ip22/ip22-gio.c
+++ b/arch/mips/sgi-ip22/ip22-gio.c
@@ -169,6 +169,7 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
}
+static DEVICE_ATTR_RO(modalias);
static ssize_t name_show(struct device *dev,
struct device_attribute *attr, char *buf)
@@ -178,6 +179,7 @@ static ssize_t name_show(struct device *dev,
giodev = to_gio_device(dev);
return sprintf(buf, "%s", giodev->name);
}
+static DEVICE_ATTR_RO(name);
static ssize_t id_show(struct device *dev,
struct device_attribute *attr, char *buf)
@@ -187,13 +189,15 @@ static ssize_t id_show(struct device *dev,
giodev = to_gio_device(dev);
return sprintf(buf, "%x", giodev->id.id);
}
+static DEVICE_ATTR_RO(id);
-static struct device_attribute gio_dev_attrs[] = {
- __ATTR_RO(modalias),
- __ATTR_RO(name),
- __ATTR_RO(id),
- __ATTR_NULL,
+static struct attribute *gio_dev_attrs[] = {
+ &dev_attr_modalias.attr,
+ &dev_attr_name.attr,
+ &dev_attr_id.attr,
+ NULL,
};
+ATTRIBUTE_GROUPS(gio_dev);
static int gio_device_uevent(struct device *dev, struct kobj_uevent_env *env)
{
@@ -374,7 +378,7 @@ static void ip22_check_gio(int slotno, unsigned long addr, int irq)
static struct bus_type gio_bus_type = {
.name = "gio",
- .dev_attrs = gio_dev_attrs,
+ .dev_groups = gio_dev_groups,
.match = gio_bus_match,
.probe = gio_device_probe,
.remove = gio_device_remove,
diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c
index 4cd47d23d81a..545446dfe7fa 100644
--- a/arch/mips/sgi-ip27/ip27-smp.c
+++ b/arch/mips/sgi-ip27/ip27-smp.c
@@ -195,7 +195,7 @@ static void ip27_smp_finish(void)
* set sp to the kernel stack of the newly created idle process, gp to the proc
* struct so that current_thread_info() will work.
*/
-static void ip27_boot_secondary(int cpu, struct task_struct *idle)
+static int ip27_boot_secondary(int cpu, struct task_struct *idle)
{
unsigned long gp = (unsigned long)task_thread_info(idle);
unsigned long sp = __KSTK_TOS(idle);
@@ -203,6 +203,7 @@ static void ip27_boot_secondary(int cpu, struct task_struct *idle)
LAUNCH_SLAVE(cputonasid(cpu), cputoslice(cpu),
(launch_proc_t)MAPPED_KERN_RW_TO_K0(smp_bootstrap),
0, (void *) sp, (void *) gp);
+ return 0;
}
static void __init ip27_smp_setup(void)
@@ -231,7 +232,7 @@ static void __init ip27_prepare_cpus(unsigned int max_cpus)
/* We already did everything necessary earlier */
}
-struct plat_smp_ops ip27_smp_ops = {
+const struct plat_smp_ops ip27_smp_ops = {
.send_ipi_single = ip27_send_ipi_single,
.send_ipi_mask = ip27_send_ipi_mask,
.init_secondary = ip27_init_secondary,
diff --git a/arch/mips/sibyte/bcm1480/smp.c b/arch/mips/sibyte/bcm1480/smp.c
index d0e94ffcc1b8..90c9d1255ad7 100644
--- a/arch/mips/sibyte/bcm1480/smp.c
+++ b/arch/mips/sibyte/bcm1480/smp.c
@@ -117,7 +117,7 @@ static void bcm1480_smp_finish(void)
* Setup the PC, SP, and GP of a secondary processor and start it
* running!
*/
-static void bcm1480_boot_secondary(int cpu, struct task_struct *idle)
+static int bcm1480_boot_secondary(int cpu, struct task_struct *idle)
{
int retval;
@@ -126,6 +126,7 @@ static void bcm1480_boot_secondary(int cpu, struct task_struct *idle)
(unsigned long)task_thread_info(idle), 0);
if (retval != 0)
printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval);
+ return retval;
}
/*
@@ -157,7 +158,7 @@ static void __init bcm1480_prepare_cpus(unsigned int max_cpus)
{
}
-struct plat_smp_ops bcm1480_smp_ops = {
+const struct plat_smp_ops bcm1480_smp_ops = {
.send_ipi_single = bcm1480_send_ipi_single,
.send_ipi_mask = bcm1480_send_ipi_mask,
.init_secondary = bcm1480_init_secondary,
diff --git a/arch/mips/sibyte/common/cfe.c b/arch/mips/sibyte/common/cfe.c
index c1a11a11db7f..115399202eab 100644
--- a/arch/mips/sibyte/common/cfe.c
+++ b/arch/mips/sibyte/common/cfe.c
@@ -229,8 +229,8 @@ static int __init initrd_setup(char *str)
#endif
-extern struct plat_smp_ops sb_smp_ops;
-extern struct plat_smp_ops bcm1480_smp_ops;
+extern const struct plat_smp_ops sb_smp_ops;
+extern const struct plat_smp_ops bcm1480_smp_ops;
/*
* prom_init is called just after the cpu type is determined, from setup_arch()
diff --git a/arch/mips/sibyte/sb1250/smp.c b/arch/mips/sibyte/sb1250/smp.c
index 0a4a2c3982d8..5baabca52f25 100644
--- a/arch/mips/sibyte/sb1250/smp.c
+++ b/arch/mips/sibyte/sb1250/smp.c
@@ -106,7 +106,7 @@ static void sb1250_smp_finish(void)
* Setup the PC, SP, and GP of a secondary processor and start it
* running!
*/
-static void sb1250_boot_secondary(int cpu, struct task_struct *idle)
+static int sb1250_boot_secondary(int cpu, struct task_struct *idle)
{
int retval;
@@ -115,6 +115,7 @@ static void sb1250_boot_secondary(int cpu, struct task_struct *idle)
(unsigned long)task_thread_info(idle), 0);
if (retval != 0)
printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval);
+ return retval;
}
/*
@@ -146,7 +147,7 @@ static void __init sb1250_prepare_cpus(unsigned int max_cpus)
{
}
-struct plat_smp_ops sb_smp_ops = {
+const struct plat_smp_ops sb_smp_ops = {
.send_ipi_single = sb1250_send_ipi_single,
.send_ipi_mask = sb1250_send_ipi_mask,
.init_secondary = sb1250_init_secondary,
diff --git a/arch/mips/tools/generic-board-config.sh b/arch/mips/tools/generic-board-config.sh
new file mode 100755
index 000000000000..654d652d7fa1
--- /dev/null
+++ b/arch/mips/tools/generic-board-config.sh
@@ -0,0 +1,88 @@
+#!/bin/sh
+#
+# Copyright (C) 2017 Imagination Technologies
+# Author: Paul Burton <paul.burton@imgtec.com>
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation; either version 2 of the License, or (at your
+# option) any later version.
+#
+# This script merges configuration fragments for boards supported by the
+# generic MIPS kernel. It checks each for requirements specified using
+# formatted comments, and then calls merge_config.sh to merge those
+# fragments which have no unmet requirements.
+#
+# An example of requirements in your board config fragment might be:
+#
+# # require CONFIG_CPU_MIPS32_R2=y
+# # require CONFIG_CPU_LITTLE_ENDIAN=y
+#
+# This would mean that your board is only included in kernels which are
+# configured for little endian MIPS32r2 CPUs, and not for example in kernels
+# configured for 64 bit or big endian systems.
+#
+
+srctree="$1"
+objtree="$2"
+ref_cfg="$3"
+cfg="$4"
+boards_origin="$5"
+shift 5
+
+# Only print Skipping... lines if the user explicitly specified BOARDS=. In the
+# general case it only serves to obscure the useful output about what actually
+# was included.
+case ${boards_origin} in
+"command line")
+ print_skipped=1
+ ;;
+environment*)
+ print_skipped=1
+ ;;
+*)
+ print_skipped=0
+ ;;
+esac
+
+for board in $@; do
+ board_cfg="${srctree}/arch/mips/configs/generic/board-${board}.config"
+ if [ ! -f "${board_cfg}" ]; then
+ echo "WARNING: Board config '${board_cfg}' not found"
+ continue
+ fi
+
+ # For each line beginning with # require, cut out the field following
+ # it & search for that in the reference config file. If the requirement
+ # is not found then the subshell will exit with code 1, and we'll
+ # continue on to the next board.
+ grep -E '^# require ' "${board_cfg}" | \
+ cut -d' ' -f 3- | \
+ while read req; do
+ case ${req} in
+ *=y)
+ # If we require something =y then we check that a line
+ # containing it is present in the reference config.
+ grep -Eq "^${req}\$" "${ref_cfg}" && continue
+ ;;
+ *=n)
+ # If we require something =n then we just invert that
+ # check, considering the requirement met if there isn't
+ # a line containing the value =y in the reference
+ # config.
+ grep -Eq "^${req/%=n/=y}\$" "${ref_cfg}" || continue
+ ;;
+ *)
+ echo "WARNING: Unhandled requirement '${req}'"
+ ;;
+ esac
+
+ [ ${print_skipped} -eq 1 ] && echo "Skipping ${board_cfg}"
+ exit 1
+ done || continue
+
+ # Merge this board config fragment into our final config file
+ ${srctree}/scripts/kconfig/merge_config.sh \
+ -m -O ${objtree} ${cfg} ${board_cfg} \
+ | grep -Ev '^(#|Using)'
+done
diff --git a/arch/mips/txx9/generic/pci.c b/arch/mips/txx9/generic/pci.c
index 0bd2a1e1ff9a..fb998726bd5d 100644
--- a/arch/mips/txx9/generic/pci.c
+++ b/arch/mips/txx9/generic/pci.c
@@ -386,9 +386,10 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
return 0;
}
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+static int (*txx9_pci_map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
- return txx9_board_vec->pci_map_irq(dev, slot, pin);
+ return txx9_pci_map_irq(dev, slot, pin);
}
char * (*txx9_board_pcibios_setup)(char *str) __initdata;
@@ -424,5 +425,8 @@ char *__init txx9_pcibios_setup(char *str)
txx9_pci_err_action = TXX9_PCI_ERR_IGNORE;
return NULL;
}
+
+ txx9_pci_map_irq = txx9_board_vec->pci_map_irq;
+
return str;
}
diff --git a/arch/mips/vdso/gettimeofday.c b/arch/mips/vdso/gettimeofday.c
index ce89c9e294f9..e22b422f282c 100644
--- a/arch/mips/vdso/gettimeofday.c
+++ b/arch/mips/vdso/gettimeofday.c
@@ -11,15 +11,55 @@
#include "vdso.h"
#include <linux/compiler.h>
-#include <linux/irqchip/mips-gic.h>
#include <linux/time.h>
#include <asm/clocksource.h>
#include <asm/io.h>
-#include <asm/mips-cm.h>
#include <asm/unistd.h>
#include <asm/vdso.h>
+#ifdef CONFIG_MIPS_CLOCK_VSYSCALL
+
+static __always_inline long gettimeofday_fallback(struct timeval *_tv,
+ struct timezone *_tz)
+{
+ register struct timezone *tz asm("a1") = _tz;
+ register struct timeval *tv asm("a0") = _tv;
+ register long ret asm("v0");
+ register long nr asm("v0") = __NR_gettimeofday;
+ register long error asm("a3");
+
+ asm volatile(
+ " syscall\n"
+ : "=r" (ret), "=r" (error)
+ : "r" (tv), "r" (tz), "r" (nr)
+ : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+ "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+
+ return error ? -ret : ret;
+}
+
+#endif
+
+static __always_inline long clock_gettime_fallback(clockid_t _clkid,
+ struct timespec *_ts)
+{
+ register struct timespec *ts asm("a1") = _ts;
+ register clockid_t clkid asm("a0") = _clkid;
+ register long ret asm("v0");
+ register long nr asm("v0") = __NR_clock_gettime;
+ register long error asm("a3");
+
+ asm volatile(
+ " syscall\n"
+ : "=r" (ret), "=r" (error)
+ : "r" (clkid), "r" (ts), "r" (nr)
+ : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+ "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+
+ return error ? -ret : ret;
+}
+
static __always_inline int do_realtime_coarse(struct timespec *ts,
const union mips_vdso_data *data)
{
@@ -39,8 +79,8 @@ static __always_inline int do_monotonic_coarse(struct timespec *ts,
const union mips_vdso_data *data)
{
u32 start_seq;
- u32 to_mono_sec;
- u32 to_mono_nsec;
+ u64 to_mono_sec;
+ u64 to_mono_nsec;
do {
start_seq = vdso_data_read_begin(data);
@@ -84,9 +124,9 @@ static __always_inline u64 read_gic_count(const union mips_vdso_data *data)
u32 hi, hi2, lo;
do {
- hi = __raw_readl(gic + GIC_UMV_SH_COUNTER_63_32_OFS);
- lo = __raw_readl(gic + GIC_UMV_SH_COUNTER_31_00_OFS);
- hi2 = __raw_readl(gic + GIC_UMV_SH_COUNTER_63_32_OFS);
+ hi = __raw_readl(gic + sizeof(lo));
+ lo = __raw_readl(gic);
+ hi2 = __raw_readl(gic + sizeof(lo));
} while (hi2 != hi);
return (((u64)hi) << 32) + lo;
@@ -148,8 +188,8 @@ static __always_inline int do_monotonic(struct timespec *ts,
{
u32 start_seq;
u64 ns;
- u32 to_mono_sec;
- u32 to_mono_nsec;
+ u64 to_mono_sec;
+ u64 to_mono_nsec;
do {
start_seq = vdso_data_read_begin(data);
@@ -187,7 +227,7 @@ int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz)
ret = do_realtime(&ts, data);
if (ret)
- return ret;
+ return gettimeofday_fallback(tv, tz);
if (tv) {
tv->tv_sec = ts.tv_sec;
@@ -202,12 +242,12 @@ int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz)
return 0;
}
-#endif /* CONFIG_CLKSRC_MIPS_GIC */
+#endif /* CONFIG_MIPS_CLOCK_VSYSCALL */
int __vdso_clock_gettime(clockid_t clkid, struct timespec *ts)
{
const union mips_vdso_data *data = get_vdso_data();
- int ret;
+ int ret = -1;
switch (clkid) {
case CLOCK_REALTIME_COARSE:
@@ -223,10 +263,11 @@ int __vdso_clock_gettime(clockid_t clkid, struct timespec *ts)
ret = do_monotonic(ts, data);
break;
default:
- ret = -ENOSYS;
break;
}
- /* If we return -ENOSYS libc should fall back to a syscall. */
+ if (ret)
+ ret = clock_gettime_fallback(clkid, ts);
+
return ret;
}
diff --git a/arch/mips/vdso/sigreturn.S b/arch/mips/vdso/sigreturn.S
index 715bf5993529..30c6219912ac 100644
--- a/arch/mips/vdso/sigreturn.S
+++ b/arch/mips/vdso/sigreturn.S
@@ -19,31 +19,21 @@
.cfi_sections .debug_frame
LEAF(__vdso_rt_sigreturn)
- .cfi_startproc
- .frame sp, 0, ra
- .mask 0x00000000, 0
- .fmask 0x00000000, 0
.cfi_signal_frame
li v0, __NR_rt_sigreturn
syscall
- .cfi_endproc
END(__vdso_rt_sigreturn)
#if _MIPS_SIM == _MIPS_SIM_ABI32
LEAF(__vdso_sigreturn)
- .cfi_startproc
- .frame sp, 0, ra
- .mask 0x00000000, 0
- .fmask 0x00000000, 0
.cfi_signal_frame
li v0, __NR_sigreturn
syscall
- .cfi_endproc
END(__vdso_sigreturn)
#endif
diff --git a/arch/mips/xilfpga/time.c b/arch/mips/xilfpga/time.c
index cbb3fca7b6fa..36f3f1870ee2 100644
--- a/arch/mips/xilfpga/time.c
+++ b/arch/mips/xilfpga/time.c
@@ -22,7 +22,7 @@ void __init plat_time_init(void)
struct clk *clk;
of_clk_init(NULL);
- clocksource_probe();
+ timer_probe();
np = of_get_cpu_node(0, NULL);
if (!np) {
diff --git a/arch/mn10300/configs/asb2303_defconfig b/arch/mn10300/configs/asb2303_defconfig
index 1fd41ec1dfb5..d06dae131139 100644
--- a/arch/mn10300/configs/asb2303_defconfig
+++ b/arch/mn10300/configs/asb2303_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_TINY_RCU=y
@@ -28,16 +27,13 @@ CONFIG_IP_PNP_BOOTP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
CONFIG_MTD=y
CONFIG_MTD_DEBUG=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -48,8 +44,6 @@ CONFIG_MTD_PHYSMAP=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SMC91X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_WLAN is not set
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
diff --git a/arch/mn10300/configs/asb2364_defconfig b/arch/mn10300/configs/asb2364_defconfig
index cd0a6cb17dee..b1d80cee97ee 100644
--- a/arch/mn10300/configs/asb2364_defconfig
+++ b/arch/mn10300/configs/asb2364_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -40,7 +39,6 @@ CONFIG_IP_PNP_BOOTP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
CONFIG_IPV6=y
# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
@@ -50,10 +48,8 @@ CONFIG_IPV6=y
CONFIG_CONNECTOR=y
CONFIG_MTD=y
CONFIG_MTD_DEBUG=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -64,8 +60,6 @@ CONFIG_MTD_PHYSMAP=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SMSC911X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -77,7 +71,6 @@ CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_PROC_KCORE=y
# CONFIG_PROC_PAGE_MONITOR is not set
@@ -93,4 +86,3 @@ CONFIG_DEBUG_KERNEL=y
CONFIG_DETECT_HUNG_TASK=y
# CONFIG_DEBUG_BUGVERBOSE is not set
CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
diff --git a/arch/mn10300/include/asm/Kbuild b/arch/mn10300/include/asm/Kbuild
index ed810e7206e8..db5b57829a81 100644
--- a/arch/mn10300/include/asm/Kbuild
+++ b/arch/mn10300/include/asm/Kbuild
@@ -1,8 +1,10 @@
generic-y += barrier.h
generic-y += clkdev.h
+generic-y += device.h
generic-y += exec.h
generic-y += extable.h
+generic-y += fb.h
generic-y += irq_work.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
diff --git a/arch/mn10300/include/asm/bug.h b/arch/mn10300/include/asm/bug.h
index aa6a38886391..811414fb002d 100644
--- a/arch/mn10300/include/asm/bug.h
+++ b/arch/mn10300/include/asm/bug.h
@@ -21,7 +21,7 @@ do { \
asm volatile( \
" syscall 15 \n" \
"0: \n" \
- " .section __bug_table,\"a\" \n" \
+ " .section __bug_table,\"aw\" \n" \
" .long 0b,%0,%1 \n" \
" .previous \n" \
: \
diff --git a/arch/mn10300/include/asm/device.h b/arch/mn10300/include/asm/device.h
deleted file mode 100644
index f0a4c256403b..000000000000
--- a/arch/mn10300/include/asm/device.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/device.h>
diff --git a/arch/mn10300/include/asm/fb.h b/arch/mn10300/include/asm/fb.h
deleted file mode 100644
index 697b24a91e1a..000000000000
--- a/arch/mn10300/include/asm/fb.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/* MN10300 Frame buffer stuff
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_FB_H
-#define _ASM_FB_H
-
-#include <linux/fb.h>
-
-#define fb_pgprotect(...) do {} while (0)
-
-static inline int fb_is_primary_device(struct fb_info *info)
-{
- return 0;
-}
-
-#endif /* _ASM_FB_H */
diff --git a/arch/mn10300/include/asm/nmi.h b/arch/mn10300/include/asm/nmi.h
index f3671cbbc117..b05627597b1b 100644
--- a/arch/mn10300/include/asm/nmi.h
+++ b/arch/mn10300/include/asm/nmi.h
@@ -11,4 +11,6 @@
#ifndef _ASM_NMI_H
#define _ASM_NMI_H
+extern void arch_touch_nmi_watchdog(void);
+
#endif /* _ASM_NMI_H */
diff --git a/arch/mn10300/include/asm/spinlock.h b/arch/mn10300/include/asm/spinlock.h
index 9c7b8f7942d8..fe413b41df6c 100644
--- a/arch/mn10300/include/asm/spinlock.h
+++ b/arch/mn10300/include/asm/spinlock.h
@@ -26,11 +26,6 @@
#define arch_spin_is_locked(x) (*(volatile signed char *)(&(x)->slock) != 0)
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- smp_cond_load_acquire(&lock->slock, !VAL);
-}
-
static inline void arch_spin_unlock(arch_spinlock_t *lock)
{
asm volatile(
diff --git a/arch/mn10300/include/asm/uaccess.h b/arch/mn10300/include/asm/uaccess.h
index c6966474827f..5af468fd1359 100644
--- a/arch/mn10300/include/asm/uaccess.h
+++ b/arch/mn10300/include/asm/uaccess.h
@@ -290,9 +290,7 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n)
}
extern long strncpy_from_user(char *dst, const char __user *src, long count);
-extern long __strncpy_from_user(char *dst, const char __user *src, long count);
extern long strnlen_user(const char __user *str, long n);
-#define strlen_user(str) strnlen_user(str, ~0UL >> 1)
extern unsigned long clear_user(void __user *mem, unsigned long len);
extern unsigned long __clear_user(void __user *mem, unsigned long len);
diff --git a/arch/mn10300/include/uapi/asm/Kbuild b/arch/mn10300/include/uapi/asm/Kbuild
index b15bf6bc0e94..c94ee54210bc 100644
--- a/arch/mn10300/include/uapi/asm/Kbuild
+++ b/arch/mn10300/include/uapi/asm/Kbuild
@@ -1,2 +1,4 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+
+generic-y += siginfo.h
diff --git a/arch/mn10300/include/uapi/asm/siginfo.h b/arch/mn10300/include/uapi/asm/siginfo.h
deleted file mode 100644
index 0815d29d82e5..000000000000
--- a/arch/mn10300/include/uapi/asm/siginfo.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/siginfo.h>
diff --git a/arch/mn10300/include/uapi/asm/socket.h b/arch/mn10300/include/uapi/asm/socket.h
index 4526e92301a6..ac82a3f26dbf 100644
--- a/arch/mn10300/include/uapi/asm/socket.h
+++ b/arch/mn10300/include/uapi/asm/socket.h
@@ -98,4 +98,10 @@
#define SO_COOKIE 57
+#define SCM_TIMESTAMPING_PKTINFO 58
+
+#define SO_PEERGROUPS 59
+
+#define SO_ZEROCOPY 60
+
#endif /* _ASM_SOCKET_H */
diff --git a/arch/mn10300/kernel/mn10300-watchdog-low.S b/arch/mn10300/kernel/mn10300-watchdog-low.S
index f2f5c9cfaabd..34f8773de7d0 100644
--- a/arch/mn10300/kernel/mn10300-watchdog-low.S
+++ b/arch/mn10300/kernel/mn10300-watchdog-low.S
@@ -50,9 +50,9 @@ watchdog_handler:
# we can't inline it)
#
###############################################################################
- .globl touch_nmi_watchdog
- .type touch_nmi_watchdog,@function
-touch_nmi_watchdog:
+ .globl arch_touch_nmi_watchdog
+ .type arch_touch_nmi_watchdog,@function
+arch_touch_nmi_watchdog:
clr d0
clr d1
mov watchdog_alert_counter, a0
@@ -63,4 +63,4 @@ touch_nmi_watchdog:
lne
ret [],0
- .size touch_nmi_watchdog,.-touch_nmi_watchdog
+ .size arch_touch_nmi_watchdog,.-arch_touch_nmi_watchdog
diff --git a/arch/mn10300/kernel/mn10300-watchdog.c b/arch/mn10300/kernel/mn10300-watchdog.c
index a2d8e6938d67..0d5641beadf5 100644
--- a/arch/mn10300/kernel/mn10300-watchdog.c
+++ b/arch/mn10300/kernel/mn10300-watchdog.c
@@ -31,7 +31,7 @@ static unsigned int watchdog;
static unsigned int watchdog_hz = 1;
unsigned int watchdog_alert_counter[NR_CPUS];
-EXPORT_SYMBOL(touch_nmi_watchdog);
+EXPORT_SYMBOL(arch_touch_nmi_watchdog);
/*
* the best way to detect whether a CPU has a 'hard lockup' problem
diff --git a/arch/mn10300/kernel/mn10300_ksyms.c b/arch/mn10300/kernel/mn10300_ksyms.c
index 5e9f919635f0..66fb68d0ca8a 100644
--- a/arch/mn10300/kernel/mn10300_ksyms.c
+++ b/arch/mn10300/kernel/mn10300_ksyms.c
@@ -23,7 +23,6 @@ EXPORT_SYMBOL(memmove);
EXPORT_SYMBOL(memset);
EXPORT_SYMBOL(strncpy_from_user);
-EXPORT_SYMBOL(__strncpy_from_user);
EXPORT_SYMBOL(clear_user);
EXPORT_SYMBOL(__clear_user);
EXPORT_SYMBOL(strnlen_user);
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index 89e8027e07fb..7c475fd99c46 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -59,10 +59,6 @@ void arch_cpu_idle(void)
}
#endif
-void release_segments(struct mm_struct *mm)
-{
-}
-
void machine_restart(char *cmd)
{
#ifdef CONFIG_KERNEL_DEBUGGER
@@ -113,14 +109,6 @@ void release_thread(struct task_struct *dead_task)
}
/*
- * we do not have to muck with descriptors here, that is
- * done in switch_mm() as needed.
- */
-void copy_segments(struct task_struct *p, struct mm_struct *new_mm)
-{
-}
-
-/*
* this gets called so that we can store lazy state into memory and copy the
* current task into the new thread.
*/
diff --git a/arch/mn10300/lib/usercopy.c b/arch/mn10300/lib/usercopy.c
index cece1799cc32..39626912de98 100644
--- a/arch/mn10300/lib/usercopy.c
+++ b/arch/mn10300/lib/usercopy.c
@@ -50,14 +50,6 @@ do { \
} while (0)
long
-__strncpy_from_user(char *dst, const char *src, long count)
-{
- long res;
- __do_strncpy_from_user(dst, src, count, res);
- return res;
-}
-
-long
strncpy_from_user(char *dst, const char *src, long count)
{
long res = -EFAULT;
diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
index a72d5f0de692..c587764b9c5a 100644
--- a/arch/nios2/Kconfig
+++ b/arch/nios2/Kconfig
@@ -1,6 +1,6 @@
config NIOS2
def_bool y
- select CLKSRC_OF
+ select TIMER_OF
select GENERIC_ATOMIC64
select GENERIC_CLOCKEVENTS
select GENERIC_CPU_DEVICES
diff --git a/arch/nios2/boot/dts/3c120_devboard.dts b/arch/nios2/boot/dts/3c120_devboard.dts
index 31c51f9a2f09..36ccdf05837d 100644
--- a/arch/nios2/boot/dts/3c120_devboard.dts
+++ b/arch/nios2/boot/dts/3c120_devboard.dts
@@ -159,6 +159,7 @@
};
chosen {
- bootargs = "debug console=ttyJ0,115200";
+ bootargs = "debug earlycon console=ttyJ0,115200";
+ stdout-path = &jtag_uart;
};
};
diff --git a/arch/nios2/include/asm/Kbuild b/arch/nios2/include/asm/Kbuild
index 727dbb333f60..896c26ae0da9 100644
--- a/arch/nios2/include/asm/Kbuild
+++ b/arch/nios2/include/asm/Kbuild
@@ -1,8 +1,6 @@
generic-y += atomic.h
-generic-y += auxvec.h
generic-y += barrier.h
generic-y += bitops.h
-generic-y += bitsperlong.h
generic-y += bug.h
generic-y += bugs.h
generic-y += clkdev.h
@@ -12,56 +10,33 @@ generic-y += device.h
generic-y += div64.h
generic-y += dma.h
generic-y += emergency-restart.h
-generic-y += errno.h
generic-y += exec.h
generic-y += extable.h
generic-y += fb.h
-generic-y += fcntl.h
generic-y += ftrace.h
generic-y += futex.h
generic-y += hardirq.h
generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += kdebug.h
generic-y += kmap_types.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
generic-y += local.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
-generic-y += mman.h
generic-y += module.h
-generic-y += msgbuf.h
-generic-y += param.h
generic-y += pci.h
generic-y += percpu.h
-generic-y += poll.h
-generic-y += posix_types.h
generic-y += preempt.h
-generic-y += resource.h
generic-y += sections.h
generic-y += segment.h
-generic-y += sembuf.h
generic-y += serial.h
-generic-y += shmbuf.h
-generic-y += siginfo.h
-generic-y += signal.h
-generic-y += socket.h
-generic-y += sockios.h
generic-y += spinlock.h
-generic-y += stat.h
-generic-y += statfs.h
-generic-y += termbits.h
-generic-y += termios.h
generic-y += topology.h
generic-y += trace_clock.h
-generic-y += types.h
generic-y += unaligned.h
generic-y += user.h
generic-y += vga.h
generic-y += word-at-a-time.h
generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
index 7b3c6f280293..f8dc62222741 100644
--- a/arch/nios2/include/asm/dma-mapping.h
+++ b/arch/nios2/include/asm/dma-mapping.h
@@ -18,7 +18,7 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
}
/*
- * dma_alloc_noncoherent() returns non-cacheable memory, so there's no need to
+ * dma_alloc_attrs() always returns non-cacheable memory, so there's no need to
* do any flushing here.
*/
static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
diff --git a/arch/nios2/include/asm/signal.h b/arch/nios2/include/asm/signal.h
deleted file mode 100644
index bbcf11eecb01..000000000000
--- a/arch/nios2/include/asm/signal.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright Altera Corporation (C) 2013. All rights reserved
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-#ifndef _NIOS2_SIGNAL_H
-#define _NIOS2_SIGNAL_H
-
-#include <uapi/asm/signal.h>
-
-#endif /* _NIOS2_SIGNAL_H */
diff --git a/arch/nios2/include/uapi/asm/Kbuild b/arch/nios2/include/uapi/asm/Kbuild
index 374bd123329f..ffca24da7647 100644
--- a/arch/nios2/include/uapi/asm/Kbuild
+++ b/arch/nios2/include/uapi/asm/Kbuild
@@ -1,5 +1,29 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += sembuf.h
generic-y += setup.h
+generic-y += shmbuf.h
+generic-y += siginfo.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
generic-y += ucontext.h
diff --git a/arch/nios2/kernel/time.c b/arch/nios2/kernel/time.c
index 6e2bdc9b8530..20e86209ef2e 100644
--- a/arch/nios2/kernel/time.c
+++ b/arch/nios2/kernel/time.c
@@ -107,7 +107,10 @@ static struct nios2_clocksource nios2_cs = {
cycles_t get_cycles(void)
{
- return nios2_timer_read(&nios2_cs.cs);
+ /* Only read timer if it has been initialized */
+ if (nios2_cs.timer.base)
+ return nios2_timer_read(&nios2_cs.cs);
+ return 0;
}
EXPORT_SYMBOL(get_cycles);
@@ -350,7 +353,7 @@ void __init time_init(void)
if (count < 2)
panic("%d timer is found, it needs 2 timers in system\n", count);
- clocksource_probe();
+ timer_probe();
}
-CLOCKSOURCE_OF_DECLARE(nios2_timer, ALTR_TIMER_COMPATIBLE, nios2_time_init);
+TIMER_OF_DECLARE(nios2_timer, ALTR_TIMER_COMPATIBLE, nios2_time_init);
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 1e95920b0737..a0f2e4a323c1 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -29,6 +29,9 @@ config OPENRISC
select CPU_NO_EFFICIENT_FFS if !OPENRISC_HAVE_INST_FF1
select NO_BOOTMEM
+config CPU_BIG_ENDIAN
+ def_bool y
+
config MMU
def_bool y
diff --git a/arch/openrisc/configs/or1ksim_defconfig b/arch/openrisc/configs/or1ksim_defconfig
index 42fe5303a370..a73aa90501be 100644
--- a/arch/openrisc/configs/or1ksim_defconfig
+++ b/arch/openrisc/configs/or1ksim_defconfig
@@ -1,4 +1,4 @@
-CONFIG_CROSS_COMPILE="or32-linux-"
+CONFIG_CROSS_COMPILE="or1k-linux-"
CONFIG_NO_HZ=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
@@ -23,7 +23,6 @@ CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
CONFIG_TCP_CONG_ADVANCED=y
# CONFIG_TCP_CONG_BIC is not set
diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild
index fdbcf0bf44a4..5bea416a7792 100644
--- a/arch/openrisc/include/asm/Kbuild
+++ b/arch/openrisc/include/asm/Kbuild
@@ -1,6 +1,4 @@
-generic-y += auxvec.h
generic-y += barrier.h
-generic-y += bitsperlong.h
generic-y += bug.h
generic-y += bugs.h
generic-y += cacheflush.h
@@ -11,58 +9,32 @@ generic-y += device.h
generic-y += div64.h
generic-y += dma.h
generic-y += emergency-restart.h
-generic-y += errno.h
generic-y += exec.h
generic-y += extable.h
generic-y += fb.h
-generic-y += fcntl.h
generic-y += ftrace.h
generic-y += hardirq.h
generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
generic-y += irq.h
generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += kdebug.h
generic-y += kmap_types.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
generic-y += local.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
-generic-y += mman.h
generic-y += module.h
-generic-y += msgbuf.h
generic-y += pci.h
generic-y += percpu.h
-generic-y += poll.h
-generic-y += posix_types.h
generic-y += preempt.h
-generic-y += resource.h
generic-y += sections.h
generic-y += segment.h
-generic-y += sembuf.h
-generic-y += setup.h
-generic-y += shmbuf.h
-generic-y += shmparam.h
-generic-y += siginfo.h
-generic-y += signal.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += stat.h
-generic-y += statfs.h
generic-y += string.h
-generic-y += swab.h
generic-y += switch_to.h
-generic-y += termbits.h
-generic-y += termios.h
generic-y += topology.h
generic-y += trace_clock.h
-generic-y += types.h
-generic-y += ucontext.h
generic-y += user.h
generic-y += vga.h
generic-y += word-at-a-time.h
generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
index 0c0075f17145..f41bd3cb76d9 100644
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ b/arch/openrisc/include/asm/dma-mapping.h
@@ -26,8 +26,6 @@
#include <linux/kmemcheck.h>
#include <linux/dma-mapping.h>
-#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-
extern const struct dma_map_ops or1k_dma_map_ops;
static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
@@ -35,11 +33,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
return &or1k_dma_map_ops;
}
-#define HAVE_ARCH_DMA_SUPPORTED 1
-static inline int dma_supported(struct device *dev, u64 dma_mask)
-{
- /* Support 32 bit DMA mask exclusively */
- return dma_mask == DMA_BIT_MASK(32);
-}
-
#endif /* __ASM_OPENRISC_DMA_MAPPING_H */
diff --git a/arch/openrisc/include/asm/fixmap.h b/arch/openrisc/include/asm/fixmap.h
index 52733416c1f3..5a0159546f9e 100644
--- a/arch/openrisc/include/asm/fixmap.h
+++ b/arch/openrisc/include/asm/fixmap.h
@@ -27,6 +27,7 @@
#define FIXADDR_TOP ((unsigned long) (-2*PAGE_SIZE))
#include <linux/kernel.h>
+#include <linux/bug.h>
#include <asm/page.h>
/*
diff --git a/arch/openrisc/include/asm/futex.h b/arch/openrisc/include/asm/futex.h
index 778087341977..8fed278a24b8 100644
--- a/arch/openrisc/include/asm/futex.h
+++ b/arch/openrisc/include/asm/futex.h
@@ -30,20 +30,10 @@
})
static inline int
-futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
int oldval = 0, ret;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
- return -EFAULT;
-
pagefault_disable();
switch (op) {
@@ -68,30 +58,9 @@ futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
pagefault_enable();
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ:
- ret = (oldval == cmparg);
- break;
- case FUTEX_OP_CMP_NE:
- ret = (oldval != cmparg);
- break;
- case FUTEX_OP_CMP_LT:
- ret = (oldval < cmparg);
- break;
- case FUTEX_OP_CMP_GE:
- ret = (oldval >= cmparg);
- break;
- case FUTEX_OP_CMP_LE:
- ret = (oldval <= cmparg);
- break;
- case FUTEX_OP_CMP_GT:
- ret = (oldval > cmparg);
- break;
- default:
- ret = -ENOSYS;
- }
- }
+ if (!ret)
+ *oval = oldval;
+
return ret;
}
diff --git a/arch/openrisc/include/asm/pgtable.h b/arch/openrisc/include/asm/pgtable.h
index ff97374ca069..71a6f08de8f2 100644
--- a/arch/openrisc/include/asm/pgtable.h
+++ b/arch/openrisc/include/asm/pgtable.h
@@ -414,6 +414,8 @@ static inline void pmd_set(pmd_t *pmdp, pte_t *ptep)
extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; /* defined in head.S */
+struct vm_area_struct;
+
/*
* or32 doesn't have any external MMU info: the kernel page
* tables contain all the necessary information.
diff --git a/arch/openrisc/include/asm/uaccess.h b/arch/openrisc/include/asm/uaccess.h
index a557a7cd0232..bbf5c79cce7a 100644
--- a/arch/openrisc/include/asm/uaccess.h
+++ b/arch/openrisc/include/asm/uaccess.h
@@ -264,7 +264,6 @@ clear_user(void *addr, unsigned long size)
extern long strncpy_from_user(char *dest, const char __user *src, long count);
-extern __must_check long strlen_user(const char __user *str);
extern __must_check long strnlen_user(const char __user *str, long n);
#endif /* __ASM_OPENRISC_UACCESS_H */
diff --git a/arch/openrisc/include/uapi/asm/Kbuild b/arch/openrisc/include/uapi/asm/Kbuild
index b15bf6bc0e94..62286dbeb904 100644
--- a/arch/openrisc/include/uapi/asm/Kbuild
+++ b/arch/openrisc/include/uapi/asm/Kbuild
@@ -1,2 +1,31 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += setup.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
+generic-y += siginfo.h
+generic-y += signal.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += swab.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
+generic-y += ucontext.h
diff --git a/arch/openrisc/kernel/or32_ksyms.c b/arch/openrisc/kernel/or32_ksyms.c
index ee3e604959e1..d7260fdb0351 100644
--- a/arch/openrisc/kernel/or32_ksyms.c
+++ b/arch/openrisc/kernel/or32_ksyms.c
@@ -15,7 +15,7 @@
* 2 of the License, or (at your option) any later version.
*/
-#include <linux/module.h>
+#include <linux/export.h>
#include <linux/elfcore.h>
#include <linux/sched.h>
#include <linux/in6.h>
diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c
index f9b77003f113..8739b6d75005 100644
--- a/arch/openrisc/kernel/process.c
+++ b/arch/openrisc/kernel/process.c
@@ -26,7 +26,7 @@
#include <linux/sched/task.h>
#include <linux/sched/task_stack.h>
#include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/export.h>
#include <linux/mm.h>
#include <linux/stddef.h>
#include <linux/unistd.h>
diff --git a/arch/openrisc/lib/delay.c b/arch/openrisc/lib/delay.c
index c82b09f4a106..8b13fdf43ec6 100644
--- a/arch/openrisc/lib/delay.c
+++ b/arch/openrisc/lib/delay.c
@@ -16,8 +16,9 @@
*/
#include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/export.h>
#include <linux/init.h>
+#include <asm/param.h>
#include <asm/delay.h>
#include <asm/timex.h>
#include <asm/processor.h>
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 531da9eb8f43..a57dedbfc7b7 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -9,6 +9,9 @@ config PARISC
select ARCH_WANT_FRAME_POINTERS
select ARCH_HAS_ELF_RANDOMIZE
select ARCH_HAS_STRICT_KERNEL_RWX
+ select ARCH_HAS_UBSAN_SANITIZE_ALL
+ select ARCH_WANTS_UBSAN_NO_NULL
+ select ARCH_SUPPORTS_MEMORY_FAILURE
select RTC_CLASS
select RTC_DRV_GENERIC
select INIT_ALL_POSSIBLE
@@ -17,6 +20,12 @@ config PARISC
select BUG
select BUILDTIME_EXTABLE_SORT
select HAVE_PERF_EVENTS
+ select HAVE_KERNEL_BZIP2
+ select HAVE_KERNEL_GZIP
+ select HAVE_KERNEL_LZ4
+ select HAVE_KERNEL_LZMA
+ select HAVE_KERNEL_LZO
+ select HAVE_KERNEL_XZ
select GENERIC_ATOMIC64 if !64BIT
select GENERIC_IRQ_PROBE
select GENERIC_PCI_IOMAP
@@ -47,6 +56,12 @@ config PARISC
and later HP3000 series). The PA-RISC Linux project home page is
at <http://www.parisc-linux.org/>.
+config CPU_BIG_ENDIAN
+ def_bool y
+
+config CPU_BIG_ENDIAN
+ def_bool y
+
config MMU
def_bool y
@@ -242,6 +257,18 @@ config PARISC_PAGE_SIZE_64KB
endchoice
+config PARISC_SELF_EXTRACT
+ bool "Build kernel as self-extracting executable"
+ default y
+ help
+ Say Y if you want to build the parisc kernel as a kind of
+ self-extracting executable.
+
+ If you say N here, the kernel will be compressed with gzip
+ which can be loaded by the palo bootloader directly too.
+
+ If you don't know what to do here, say Y.
+
config SMP
bool "Symmetric multi-processing support"
---help---
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 75cb451b1f03..01946ebaff72 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -24,15 +24,20 @@ KBUILD_DEFCONFIG := default_defconfig
NM = sh $(srctree)/arch/parisc/nm
CHECKFLAGS += -D__hppa__=1
LIBGCC = $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
+export LIBGCC
ifdef CONFIG_64BIT
UTS_MACHINE := parisc64
CHECKFLAGS += -D__LP64__=1 -m64
CC_ARCHES = hppa64
+LD_BFD := elf64-hppa-linux
else # 32-bit
CC_ARCHES = hppa hppa2.0 hppa1.1
+LD_BFD := elf32-hppa-linux
endif
+export LD_BFD
+
ifneq ($(SUBARCH),$(UTS_MACHINE))
ifeq ($(CROSS_COMPILE),)
CC_SUFFIXES = linux linux-gnu unknown-linux-gnu
@@ -88,6 +93,8 @@ libs-y += arch/parisc/lib/ $(LIBGCC)
drivers-$(CONFIG_OPROFILE) += arch/parisc/oprofile/
+boot := arch/parisc/boot
+
PALO := $(shell if (which palo 2>&1); then : ; \
elif [ -x /sbin/palo ]; then echo /sbin/palo; \
fi)
@@ -116,11 +123,19 @@ INSTALL_TARGETS = zinstall install
PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
-bzImage zImage: vmlinuz
+zImage: vmlinuz
Image: vmlinux
+bzImage: vmlinux
+ $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+
+ifdef CONFIG_PARISC_SELF_EXTRACT
+vmlinuz: bzImage
+ $(OBJCOPY) $(boot)/bzImage $@
+else
vmlinuz: vmlinux
@gzip -cf -9 $< > $@
+endif
install:
$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
diff --git a/arch/parisc/boot/.gitignore b/arch/parisc/boot/.gitignore
new file mode 100644
index 000000000000..017d5912ad2d
--- /dev/null
+++ b/arch/parisc/boot/.gitignore
@@ -0,0 +1,2 @@
+image
+bzImage
diff --git a/arch/parisc/boot/Makefile b/arch/parisc/boot/Makefile
new file mode 100644
index 000000000000..cad68a584884
--- /dev/null
+++ b/arch/parisc/boot/Makefile
@@ -0,0 +1,26 @@
+#
+# Makefile for the linux parisc-specific parts of the boot image creator.
+#
+
+COMPILE_VERSION := __linux_compile_version_id__`hostname | \
+ tr -c '[0-9A-Za-z]' '_'`__`date | \
+ tr -c '[0-9A-Za-z]' '_'`_t
+
+ccflags-y := -DCOMPILE_VERSION=$(COMPILE_VERSION) -gstabs -I.
+
+targets := image
+targets += bzImage
+subdir- := compressed
+
+$(obj)/image: vmlinux FORCE
+ $(call if_changed,objcopy)
+
+$(obj)/bzImage: $(obj)/compressed/vmlinux FORCE
+ $(call if_changed,objcopy)
+
+$(obj)/compressed/vmlinux: FORCE
+ $(Q)$(MAKE) $(build)=$(obj)/compressed $@
+
+install: $(CONFIGURE) $(obj)/bzImage
+ sh -x $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
+ System.map "$(INSTALL_PATH)"
diff --git a/arch/parisc/boot/compressed/.gitignore b/arch/parisc/boot/compressed/.gitignore
new file mode 100644
index 000000000000..ae06b9b4c02f
--- /dev/null
+++ b/arch/parisc/boot/compressed/.gitignore
@@ -0,0 +1,3 @@
+sizes.h
+vmlinux
+vmlinux.lds
diff --git a/arch/parisc/boot/compressed/Makefile b/arch/parisc/boot/compressed/Makefile
new file mode 100644
index 000000000000..7d7e594bda36
--- /dev/null
+++ b/arch/parisc/boot/compressed/Makefile
@@ -0,0 +1,86 @@
+#
+# linux/arch/parisc/boot/compressed/Makefile
+#
+# create a compressed self-extracting vmlinux image from the original vmlinux
+#
+
+KCOV_INSTRUMENT := n
+GCOV_PROFILE := n
+UBSAN_SANITIZE := n
+
+targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2
+targets += vmlinux.bin.xz vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.lz4
+targets += misc.o piggy.o sizes.h head.o real2.o firmware.o
+
+KBUILD_CFLAGS := -D__KERNEL__ -O2 -DBOOTLOADER
+KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
+KBUILD_CFLAGS += $(cflags-y) -fno-delete-null-pointer-checks
+KBUILD_CFLAGS += -fno-PIE -mno-space-regs -mdisable-fpregs -Os
+ifndef CONFIG_64BIT
+KBUILD_CFLAGS += -mfast-indirect-calls
+endif
+
+OBJECTS += $(obj)/head.o $(obj)/real2.o $(obj)/firmware.o $(obj)/misc.o $(obj)/piggy.o
+
+# LDFLAGS_vmlinux := -X --whole-archive -e startup -T
+LDFLAGS_vmlinux := -X -e startup --as-needed -T
+$(obj)/vmlinux: $(obj)/vmlinux.lds $(OBJECTS) $(LIBGCC)
+ $(call if_changed,ld)
+
+sed-sizes := -e 's/^\([0-9a-fA-F]*\) . \(__bss_start\|_end\|parisc_kernel_start\)$$/\#define SZ\2 0x\1/p'
+
+quiet_cmd_sizes = GEN $@
+ cmd_sizes = $(NM) $< | sed -n $(sed-sizes) > $@
+
+$(obj)/sizes.h: vmlinux
+ $(call if_changed,sizes)
+
+AFLAGS_head.o += -I$(objtree)/$(obj) -DBOOTLOADER
+$(obj)/head.o: $(obj)/sizes.h
+
+CFLAGS_misc.o += -I$(objtree)/$(obj)
+$(obj)/misc.o: $(obj)/sizes.h
+
+$(obj)/firmware.o: $(obj)/firmware.c
+$(obj)/firmware.c: $(srctree)/arch/$(SRCARCH)/kernel/firmware.c
+ $(call cmd,shipped)
+
+AFLAGS_real2.o += -DBOOTLOADER
+$(obj)/real2.o: $(obj)/real2.S
+$(obj)/real2.S: $(srctree)/arch/$(SRCARCH)/kernel/real2.S
+ $(call cmd,shipped)
+
+$(obj)/misc.o: $(obj)/sizes.h
+
+CPPFLAGS_vmlinux.lds += -I$(objtree)/$(obj) -DBOOTLOADER
+$(obj)/vmlinux.lds: $(obj)/sizes.h
+
+OBJCOPYFLAGS_vmlinux.bin := -O binary -R .comment -S
+$(obj)/vmlinux.bin: vmlinux
+ $(call if_changed,objcopy)
+
+vmlinux.bin.all-y := $(obj)/vmlinux.bin
+
+suffix-$(CONFIG_KERNEL_GZIP) := gz
+suffix-$(CONFIG_KERNEL_BZIP2) := bz2
+suffix-$(CONFIG_KERNEL_LZ4) := lz4
+suffix-$(CONFIG_KERNEL_LZMA) := lzma
+suffix-$(CONFIG_KERNEL_LZO) := lzo
+suffix-$(CONFIG_KERNEL_XZ) := xz
+
+$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y)
+ $(call if_changed,gzip)
+$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y)
+ $(call if_changed,bzip2)
+$(obj)/vmlinux.bin.lz4: $(vmlinux.bin.all-y)
+ $(call if_changed,lz4)
+$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y)
+ $(call if_changed,lzma)
+$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y)
+ $(call if_changed,lzo)
+$(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y)
+ $(call if_changed,xzkern)
+
+LDFLAGS_piggy.o := -r --format binary --oformat $(LD_BFD) -T
+$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y)
+ $(call if_changed,ld)
diff --git a/arch/parisc/boot/compressed/head.S b/arch/parisc/boot/compressed/head.S
new file mode 100644
index 000000000000..5aba20fa48aa
--- /dev/null
+++ b/arch/parisc/boot/compressed/head.S
@@ -0,0 +1,85 @@
+/*
+ * Startup glue code to uncompress the kernel
+ *
+ * (C) 2017 Helge Deller <deller@gmx.de>
+ */
+
+#include <linux/init.h>
+#include <linux/linkage.h>
+#include <asm/asm-offsets.h>
+#include <asm/page.h>
+#include <asm/psw.h>
+#include <asm/pdc.h>
+#include <asm/assembly.h>
+#include "sizes.h"
+
+#define BOOTADDR(x) (x)
+
+#ifndef CONFIG_64BIT
+ .import $global$ /* forward declaration */
+#endif /*!CONFIG_64BIT*/
+
+ __HEAD
+
+ENTRY(startup)
+ .level LEVEL
+
+#define PSW_W_SM 0x200
+#define PSW_W_BIT 36
+
+ ;! nuke the W bit, saving original value
+ .level 2.0
+ rsm PSW_W_SM, %r1
+
+ .level 1.1
+ extrw,u %r1, PSW_W_BIT-32, 1, %r1
+ copy %r1, %arg0
+
+ /* Make sure sr4-sr7 are set to zero for the kernel address space */
+ mtsp %r0,%sr4
+ mtsp %r0,%sr5
+ mtsp %r0,%sr6
+ mtsp %r0,%sr7
+
+ /* Clear BSS */
+
+ .import _bss,data
+ .import _ebss,data
+
+ load32 BOOTADDR(_bss),%r3
+ load32 BOOTADDR(_ebss),%r4
+ ldo FRAME_SIZE(%r4),%sp /* stack at end of bss */
+$bss_loop:
+ cmpb,<<,n %r3,%r4,$bss_loop
+ stw,ma %r0,4(%r3)
+
+ /* Initialize the global data pointer */
+ loadgp
+
+ /* arg0..arg4 were set by palo. */
+ copy %arg1, %r6 /* command line */
+ copy %arg2, %r7 /* rd-start */
+ copy %arg3, %r8 /* rd-end */
+ load32 BOOTADDR(decompress_kernel),%r3
+
+#ifdef CONFIG_64BIT
+ .level LEVEL
+ ssm PSW_W_SM, %r0 /* set W-bit */
+ depdi 0, 31, 32, %r3
+#endif
+ load32 BOOTADDR(startup_continue), %r2
+ bv,n 0(%r3)
+
+startup_continue:
+#ifdef CONFIG_64BIT
+ .level LEVEL
+ rsm PSW_W_SM, %r0 /* clear W-bit */
+#endif
+
+ load32 KERNEL_BINARY_TEXT_START, %arg0 /* free mem */
+ copy %r6, %arg1 /* command line */
+ copy %r7, %arg2 /* rd-start */
+ copy %r8, %arg3 /* rd-end */
+
+ bv,n 0(%ret0)
+END(startup)
diff --git a/arch/parisc/boot/compressed/misc.c b/arch/parisc/boot/compressed/misc.c
new file mode 100644
index 000000000000..9345b44b86f0
--- /dev/null
+++ b/arch/parisc/boot/compressed/misc.c
@@ -0,0 +1,302 @@
+/*
+ * Definitions and wrapper functions for kernel decompressor
+ *
+ * (C) 2017 Helge Deller <deller@gmx.de>
+ */
+
+#include <linux/uaccess.h>
+#include <asm/unaligned.h>
+#include <asm/page.h>
+#include "sizes.h"
+
+/*
+ * gzip declarations
+ */
+#define STATIC static
+
+#undef memmove
+#define memmove memmove
+#define memzero(s, n) memset((s), 0, (n))
+
+#define malloc malloc_gzip
+#define free free_gzip
+
+/* Symbols defined by linker scripts */
+extern char input_data[];
+extern int input_len;
+/* output_len is inserted by the linker possibly at an unaligned address */
+extern __le32 output_len __aligned(1);
+extern char _text, _end;
+extern char _bss, _ebss;
+extern char _startcode_end;
+extern void startup_continue(void *entry, unsigned long cmdline,
+ unsigned long rd_start, unsigned long rd_end) __noreturn;
+
+void error(char *m) __noreturn;
+
+static unsigned long free_mem_ptr;
+static unsigned long free_mem_end_ptr;
+
+#ifdef CONFIG_KERNEL_GZIP
+#include "../../../../lib/decompress_inflate.c"
+#endif
+
+#ifdef CONFIG_KERNEL_BZIP2
+#include "../../../../lib/decompress_bunzip2.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZ4
+#include "../../../../lib/decompress_unlz4.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZMA
+#include "../../../../lib/decompress_unlzma.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZO
+#include "../../../../lib/decompress_unlzo.c"
+#endif
+
+#ifdef CONFIG_KERNEL_XZ
+#include "../../../../lib/decompress_unxz.c"
+#endif
+
+void *memmove(void *dest, const void *src, size_t n)
+{
+ const char *s = src;
+ char *d = dest;
+
+ if (d <= s) {
+ while (n--)
+ *d++ = *s++;
+ } else {
+ d += n;
+ s += n;
+ while (n--)
+ *--d = *--s;
+ }
+ return dest;
+}
+
+void *memset(void *s, int c, size_t count)
+{
+ char *xs = (char *)s;
+
+ while (count--)
+ *xs++ = c;
+ return s;
+}
+
+void *memcpy(void *d, const void *s, size_t len)
+{
+ char *dest = (char *)d;
+ const char *source = (const char *)s;
+
+ while (len--)
+ *dest++ = *source++;
+ return d;
+}
+
+size_t strlen(const char *s)
+{
+ const char *sc;
+
+ for (sc = s; *sc != '\0'; ++sc)
+ ;
+ return sc - s;
+}
+
+char *strchr(const char *s, int c)
+{
+ while (*s) {
+ if (*s == (char)c)
+ return (char *)s;
+ ++s;
+ }
+ return NULL;
+}
+
+int puts(const char *s)
+{
+ const char *nuline = s;
+
+ while ((nuline = strchr(s, '\n')) != NULL) {
+ if (nuline != s)
+ pdc_iodc_print(s, nuline - s);
+ pdc_iodc_print("\r\n", 2);
+ s = nuline + 1;
+ }
+ if (*s != '\0')
+ pdc_iodc_print(s, strlen(s));
+
+ return 0;
+}
+
+static int putchar(int c)
+{
+ char buf[2];
+
+ buf[0] = c;
+ buf[1] = '\0';
+ puts(buf);
+ return c;
+}
+
+void __noreturn error(char *x)
+{
+ puts("\n\n");
+ puts(x);
+ puts("\n\n -- System halted");
+ while (1) /* wait forever */
+ ;
+}
+
+static int print_hex(unsigned long num)
+{
+ const char hex[] = "0123456789abcdef";
+ char str[40];
+ int i = sizeof(str)-1;
+
+ str[i--] = '\0';
+ do {
+ str[i--] = hex[num & 0x0f];
+ num >>= 4;
+ } while (num);
+
+ str[i--] = 'x';
+ str[i] = '0';
+ puts(&str[i]);
+
+ return 0;
+}
+
+int printf(const char *fmt, ...)
+{
+ va_list args;
+ int i = 0;
+
+ va_start(args, fmt);
+
+ while (fmt[i]) {
+ if (fmt[i] != '%') {
+put:
+ putchar(fmt[i++]);
+ continue;
+ }
+
+ if (fmt[++i] == '%')
+ goto put;
+ ++i;
+ print_hex(va_arg(args, unsigned long));
+ }
+
+ va_end(args);
+ return 0;
+}
+
+/* helper functions for libgcc */
+void abort(void)
+{
+ error("aborted.");
+}
+
+#undef malloc
+void *malloc(size_t size)
+{
+ return malloc_gzip(size);
+}
+
+#undef free
+void free(void *ptr)
+{
+ return free_gzip(ptr);
+}
+
+
+static void flush_data_cache(char *start, unsigned long length)
+{
+ char *end = start + length;
+
+ do {
+ asm volatile("fdc 0(%0)" : : "r" (start));
+ asm volatile("fic 0(%%sr0,%0)" : : "r" (start));
+ start += 16;
+ } while (start < end);
+ asm volatile("fdc 0(%0)" : : "r" (end));
+
+ asm ("sync");
+}
+
+unsigned long decompress_kernel(unsigned int started_wide,
+ unsigned int command_line,
+ const unsigned int rd_start,
+ const unsigned int rd_end)
+{
+ char *output;
+ unsigned long len, len_all;
+
+#ifdef CONFIG_64BIT
+ parisc_narrow_firmware = 0;
+#endif
+
+ set_firmware_width_unlocked();
+
+ putchar('U'); /* if you get this p and no more, string storage */
+ /* in $GLOBAL$ is wrong or %dp is wrong */
+ puts("ncompressing ...\n");
+
+ output = (char *) KERNEL_BINARY_TEXT_START;
+ len_all = __pa(SZ_end) - __pa(SZparisc_kernel_start);
+
+ if ((unsigned long) &_startcode_end > (unsigned long) output)
+ error("Bootcode overlaps kernel code");
+
+ len = get_unaligned_le32(&output_len);
+ if (len > len_all)
+ error("Output len too big.");
+ else
+ memset(&output[len], 0, len_all - len);
+
+ /*
+ * Initialize free_mem_ptr and free_mem_end_ptr.
+ */
+ free_mem_ptr = (unsigned long) &_ebss;
+ free_mem_ptr += 2*1024*1024; /* leave 2 MB for stack */
+
+ /* Limit memory for bootoader to 1GB */
+ #define ARTIFICIAL_LIMIT (1*1024*1024*1024)
+ free_mem_end_ptr = PAGE0->imm_max_mem;
+ if (free_mem_end_ptr > ARTIFICIAL_LIMIT)
+ free_mem_end_ptr = ARTIFICIAL_LIMIT;
+
+#ifdef CONFIG_BLK_DEV_INITRD
+ /* if we have ramdisk this is at end of memory */
+ if (rd_start && rd_start < free_mem_end_ptr)
+ free_mem_end_ptr = rd_start;
+#endif
+
+#ifdef DEBUG
+ printf("startcode_end = %x\n", &_startcode_end);
+ printf("commandline = %x\n", command_line);
+ printf("rd_start = %x\n", rd_start);
+ printf("rd_end = %x\n", rd_end);
+
+ printf("free_ptr = %x\n", free_mem_ptr);
+ printf("free_ptr_end = %x\n", free_mem_end_ptr);
+
+ printf("input_data = %x\n", input_data);
+ printf("input_len = %x\n", input_len);
+ printf("output = %x\n", output);
+ printf("output_len = %x\n", len);
+ printf("output_max = %x\n", len_all);
+#endif
+
+ __decompress(input_data, input_len, NULL, NULL,
+ output, 0, NULL, error);
+
+ flush_data_cache(output, len);
+
+ printf("Booting kernel ...\n\n");
+
+ return (unsigned long) output;
+}
diff --git a/arch/parisc/boot/compressed/vmlinux.lds.S b/arch/parisc/boot/compressed/vmlinux.lds.S
new file mode 100644
index 000000000000..a4ce3314e78e
--- /dev/null
+++ b/arch/parisc/boot/compressed/vmlinux.lds.S
@@ -0,0 +1,101 @@
+#include <asm-generic/vmlinux.lds.h>
+#include <asm/page.h>
+#include "sizes.h"
+
+#ifndef CONFIG_64BIT
+OUTPUT_FORMAT("elf32-hppa-linux")
+OUTPUT_ARCH(hppa)
+#else
+OUTPUT_FORMAT("elf64-hppa-linux")
+OUTPUT_ARCH(hppa:hppa2.0w)
+#endif
+
+ENTRY(startup)
+
+SECTIONS
+{
+ /* palo loads at 0x60000 */
+ /* loaded kernel will move to 0x10000 */
+ . = 0xe0000; /* should not overwrite palo code */
+
+ .head.text : {
+ _head = . ;
+ HEAD_TEXT
+ _ehead = . ;
+ }
+
+ /* keep __gp below 0x1000000 */
+#ifdef CONFIG_64BIT
+ . = ALIGN(16);
+ /* Linkage tables */
+ .opd : {
+ *(.opd)
+ } PROVIDE (__gp = .);
+ .plt : {
+ *(.plt)
+ }
+ .dlt : {
+ *(.dlt)
+ }
+#endif
+ _startcode_end = .;
+
+ /* bootloader code and data starts behind area of extracted kernel */
+ . = (SZ_end - SZparisc_kernel_start + KERNEL_BINARY_TEXT_START);
+
+ /* align on next page boundary */
+ . = ALIGN(4096);
+ .text : {
+ _text = .; /* Text */
+ *(.text)
+ *(.text.*)
+ _etext = . ;
+ }
+ . = ALIGN(8);
+ .data : {
+ _data = . ;
+ *(.data)
+ *(.data.*)
+ _edata = . ;
+ }
+ . = ALIGN(8);
+ .rodata : {
+ _rodata = . ;
+ *(.rodata) /* read-only data */
+ *(.rodata.*)
+ _erodata = . ;
+ }
+ . = ALIGN(8);
+ .rodata.compressed : {
+ *(.rodata.compressed)
+ }
+ . = ALIGN(8);
+ .bss : {
+ _bss = . ;
+ *(.bss)
+ *(.bss.*)
+ *(COMMON)
+ . = ALIGN(4096);
+ _ebss = .;
+ }
+
+ STABS_DEBUG
+ .note 0 : { *(.note) }
+
+ /* Sections to be discarded */
+ DISCARDS
+ /DISCARD/ : {
+#ifdef CONFIG_64BIT
+ /* temporary hack until binutils is fixed to not emit these
+ * for static binaries
+ */
+ *(.PARISC.unwind) /* no unwind data */
+ *(.interp)
+ *(.dynsym)
+ *(.dynstr)
+ *(.dynamic)
+ *(.hash)
+ *(.gnu.hash)
+#endif
+ }
+}
diff --git a/arch/parisc/boot/compressed/vmlinux.scr b/arch/parisc/boot/compressed/vmlinux.scr
new file mode 100644
index 000000000000..dac2d142bcfa
--- /dev/null
+++ b/arch/parisc/boot/compressed/vmlinux.scr
@@ -0,0 +1,10 @@
+SECTIONS
+{
+ .rodata.compressed : {
+ input_len = .;
+ LONG(input_data_end - input_data) input_data = .;
+ *(.data)
+ output_len = . - 4; /* can be at unaligned address */
+ input_data_end = .;
+ }
+}
diff --git a/arch/parisc/boot/install.sh b/arch/parisc/boot/install.sh
new file mode 100644
index 000000000000..8f7c365fad83
--- /dev/null
+++ b/arch/parisc/boot/install.sh
@@ -0,0 +1,65 @@
+#!/bin/sh
+#
+# arch/parisc/install.sh, derived from arch/i386/boot/install.sh
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License. See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 1995 by Linus Torvalds
+#
+# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin
+#
+# "make install" script for i386 architecture
+#
+# Arguments:
+# $1 - kernel version
+# $2 - kernel image file
+# $3 - kernel map file
+# $4 - default install path (blank if root directory)
+#
+
+verify () {
+ if [ ! -f "$1" ]; then
+ echo "" 1>&2
+ echo " *** Missing file: $1" 1>&2
+ echo ' *** You need to run "make" before "make install".' 1>&2
+ echo "" 1>&2
+ exit 1
+ fi
+}
+
+# Make sure the files actually exist
+
+verify "$2"
+verify "$3"
+
+# User may have a custom install script
+
+if [ -n "${INSTALLKERNEL}" ]; then
+ if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi
+ if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
+fi
+
+# Default install
+
+if [ "$(basename $2)" = "zImage" ]; then
+# Compressed install
+ echo "Installing compressed kernel"
+ base=vmlinuz
+else
+# Normal install
+ echo "Installing normal kernel"
+ base=vmlinux
+fi
+
+if [ -f $4/$base-$1 ]; then
+ mv $4/$base-$1 $4/$base-$1.old
+fi
+cat $2 > $4/$base-$1
+
+# Install system map file
+if [ -f $4/System.map-$1 ]; then
+ mv $4/System.map-$1 $4/System.map-$1.old
+fi
+cp $3 $4/System.map-$1
diff --git a/arch/parisc/configs/712_defconfig b/arch/parisc/configs/712_defconfig
index 143d02652792..ccc109761f44 100644
--- a/arch/parisc/configs/712_defconfig
+++ b/arch/parisc/configs/712_defconfig
@@ -1,11 +1,9 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
-CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_KALLSYMS_ALL=y
CONFIG_SLAB=y
@@ -14,7 +12,6 @@ CONFIG_OPROFILE=m
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
-# CONFIG_BLK_DEV_BSG is not set
CONFIG_PA7100LC=y
CONFIG_PREEMPT_VOLUNTARY=y
CONFIG_GSC_LASI=y
@@ -32,11 +29,9 @@ CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
-# CONFIG_INET_LRO is not set
CONFIG_INET_DIAG=m
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
-CONFIG_IP_NF_QUEUE=m
CONFIG_LLC2=m
CONFIG_NET_PKTGEN=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
@@ -65,21 +60,20 @@ CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_NETDEVICES=y
-CONFIG_DUMMY=m
CONFIG_BONDING=m
+CONFIG_DUMMY=m
CONFIG_TUN=m
-CONFIG_NET_ETHERNET=y
-CONFIG_MII=m
CONFIG_LASI_82596=y
CONFIG_PPP=m
-CONFIG_PPP_ASYNC=m
-CONFIG_PPP_SYNC_TTY=m
-CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
CONFIG_PPP_MPPE=m
CONFIG_PPPOE=m
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
# CONFIG_KEYBOARD_HIL_OLD is not set
CONFIG_MOUSE_SERIAL=m
+CONFIG_LEGACY_PTY_COUNT=64
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=17
@@ -88,22 +82,17 @@ CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_MUX is not set
CONFIG_PDC_CONSOLE=y
-CONFIG_LEGACY_PTY_COUNT=64
CONFIG_PRINTER=m
CONFIG_PPDEV=m
# CONFIG_HW_RANDOM is not set
CONFIG_RAW_DRIVER=y
# CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y
CONFIG_DUMMY_CONSOLE_COLUMNS=128
CONFIG_DUMMY_CONSOLE_ROWS=48
CONFIG_FRAMEBUFFER_CONSOLE=y
-CONFIG_FONTS=y
-CONFIG_FONT_8x8=y
-CONFIG_FONT_8x16=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
@@ -111,13 +100,9 @@ CONFIG_LOGO=y
CONFIG_SOUND=y
CONFIG_SND=y
CONFIG_SND_SEQUENCER=y
-CONFIG_SND_MIXER_OSS=y
-CONFIG_SND_PCM_OSS=y
-CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_HARMONY=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
-# CONFIG_EXT3_FS_XATTR is not set
CONFIG_JFS_FS=m
CONFIG_XFS_FS=m
CONFIG_AUTOFS4_FS=y
@@ -130,14 +115,10 @@ CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_UFS_FS=m
CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
CONFIG_NFSD=m
CONFIG_NFSD_V4=y
-CONFIG_RPCSEC_GSS_SPKM3=m
-CONFIG_SMB_FS=m
-CONFIG_SMB_NLS_DEFAULT=y
CONFIG_CIFS=m
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_737=m
@@ -177,21 +158,16 @@ CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
-CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MUTEXES=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_HMAC=y
-CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
-CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m
-CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_CAST6=m
@@ -200,6 +176,7 @@ CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_DEFLATE=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
-CONFIG_LIBCRC32C=m
+CONFIG_FONTS=y
+CONFIG_FONT_8x8=y
+CONFIG_FONT_8x16=y
diff --git a/arch/parisc/configs/a500_defconfig b/arch/parisc/configs/a500_defconfig
index 1a4f776b49b8..5acb93dcaabf 100644
--- a/arch/parisc/configs/a500_defconfig
+++ b/arch/parisc/configs/a500_defconfig
@@ -1,13 +1,10 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
-CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_BLK_DEV_INITRD=y
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_EXPERT=y
CONFIG_KALLSYMS_ALL=y
CONFIG_SLAB=y
@@ -16,7 +13,6 @@ CONFIG_OPROFILE=m
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
-# CONFIG_BLK_DEV_BSG is not set
CONFIG_PA8X00=y
CONFIG_64BIT=y
CONFIG_SMP=y
@@ -43,21 +39,17 @@ CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
-# CONFIG_INET_LRO is not set
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_TUNNEL=m
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_XT_MATCH_DCCP is not set
-CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
-CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_RAW=m
@@ -70,7 +62,6 @@ CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_RT=m
-CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
@@ -94,7 +85,6 @@ CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
CONFIG_BLK_DEV_SR=y
CONFIG_CHR_DEV_SG=y
-CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_QLOGIC_1280=m
@@ -106,43 +96,38 @@ CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
CONFIG_FUSION=y
CONFIG_FUSION_SPI=m
-CONFIG_FUSION_FC=m
CONFIG_FUSION_CTL=m
CONFIG_NETDEVICES=y
-CONFIG_DUMMY=m
CONFIG_BONDING=m
+CONFIG_DUMMY=m
CONFIG_TUN=m
-CONFIG_NET_ETHERNET=y
-CONFIG_NET_VENDOR_3COM=y
+CONFIG_PCMCIA_3C574=m
+CONFIG_PCMCIA_3C589=m
CONFIG_VORTEX=m
CONFIG_TYPHOON=m
+CONFIG_ACENIC=m
+CONFIG_ACENIC_OMIT_TIGON_I=y
+CONFIG_PCNET32=m
+CONFIG_TIGON3=m
CONFIG_NET_TULIP=y
CONFIG_DE2104X=m
CONFIG_TULIP=y
CONFIG_TULIP_MMIO=y
CONFIG_PCMCIA_XIRCOM=m
CONFIG_HP100=m
-CONFIG_NET_PCI=y
-CONFIG_PCNET32=m
CONFIG_E100=m
-CONFIG_ACENIC=m
-CONFIG_ACENIC_OMIT_TIGON_I=y
CONFIG_E1000=m
-CONFIG_TIGON3=m
-CONFIG_NET_PCMCIA=y
-CONFIG_PCMCIA_3C589=m
-CONFIG_PCMCIA_3C574=m
CONFIG_PCMCIA_SMC91C92=m
CONFIG_PCMCIA_XIRC2PS=m
CONFIG_PPP=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
-CONFIG_PPP_DEFLATE=m
-CONFIG_PPP_BSDCOMP=m
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
+# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_CS=m
@@ -151,7 +136,6 @@ CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_PDC_CONSOLE=y
-# CONFIG_LEGACY_PTYS is not set
# CONFIG_HW_RANDOM is not set
CONFIG_RAW_DRIVER=y
# CONFIG_HWMON is not set
@@ -160,7 +144,6 @@ CONFIG_AGP_PARISC=y
# CONFIG_STI_CONSOLE is not set
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
-# CONFIG_EXT3_FS_XATTR is not set
CONFIG_JFS_FS=m
CONFIG_XFS_FS=m
CONFIG_AUTOFS4_FS=y
@@ -173,13 +156,9 @@ CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_UFS_FS=m
CONFIG_NFS_FS=m
-CONFIG_NFS_V3=y
-CONFIG_NFS_V4=y
+CONFIG_NFS_V4=m
CONFIG_NFSD=m
CONFIG_NFSD_V4=y
-CONFIG_RPCSEC_GSS_SPKM3=m
-CONFIG_SMB_FS=m
-CONFIG_SMB_NLS_DEFAULT=y
CONFIG_CIFS=m
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_850=m
@@ -187,17 +166,12 @@ CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_UTF8=m
-CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_CHECK=y
-CONFIG_DEBUG_KERNEL=y
+CONFIG_MAGIC_SYSRQ=y
# CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_BLOWFISH=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
-CONFIG_LIBCRC32C=m
diff --git a/arch/parisc/configs/b180_defconfig b/arch/parisc/configs/b180_defconfig
index f1a0c25bef8d..83ffd161aec5 100644
--- a/arch/parisc/configs/b180_defconfig
+++ b/arch/parisc/configs/b180_defconfig
@@ -3,7 +3,6 @@ CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
-CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_SLAB=y
CONFIG_MODULES=y
@@ -25,8 +24,6 @@ CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
-CONFIG_IPV6=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
@@ -53,10 +50,9 @@ CONFIG_MD_LINEAR=y
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
CONFIG_NETDEVICES=y
-CONFIG_NET_ETHERNET=y
-CONFIG_LASI_82596=y
CONFIG_NET_TULIP=y
CONFIG_TULIP=y
+CONFIG_LASI_82596=y
CONFIG_PPP=y
CONFIG_INPUT_EVDEV=y
# CONFIG_KEYBOARD_HIL_OLD is not set
@@ -71,40 +67,31 @@ CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_PRINTER=y
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
CONFIG_SOUND=y
CONFIG_SND=y
CONFIG_SND_SEQUENCER=y
-CONFIG_SND_MIXER_OSS=y
-CONFIG_SND_PCM_OSS=y
-CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_HARMONY=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
-# CONFIG_EXT3_FS_XATTR is not set
CONFIG_AUTOFS4_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
CONFIG_ROOT_NFS=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
-CONFIG_SMB_FS=y
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_UTF8=m
-CONFIG_MAGIC_SYSRQ=y
CONFIG_HEADERS_CHECK=y
+CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_SECURITY=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/parisc/configs/c3000_defconfig b/arch/parisc/configs/c3000_defconfig
index 8e8f0e34f817..8d41a73bd71b 100644
--- a/arch/parisc/configs/c3000_defconfig
+++ b/arch/parisc/configs/c3000_defconfig
@@ -1,12 +1,9 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
-CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_BLK_DEV_INITRD=y
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_EXPERT=y
CONFIG_KALLSYMS_ALL=y
CONFIG_SLAB=y
@@ -15,7 +12,6 @@ CONFIG_OPROFILE=m
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
-# CONFIG_BLK_DEV_BSG is not set
CONFIG_PA8X00=y
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_GSC is not set
@@ -31,13 +27,10 @@ CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_TUNNEL=m
CONFIG_NETFILTER=y
-CONFIG_NETFILTER_DEBUG=y
-CONFIG_IP_NF_QUEUE=m
CONFIG_NET_PKTGEN=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
@@ -50,13 +43,11 @@ CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_NS87415=y
-CONFIG_PATA_SIL680=m
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
CONFIG_BLK_DEV_SR=y
CONFIG_CHR_DEV_SG=y
-CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0
@@ -76,28 +67,23 @@ CONFIG_FUSION=y
CONFIG_FUSION_SPI=m
CONFIG_FUSION_CTL=m
CONFIG_NETDEVICES=y
-CONFIG_DUMMY=m
CONFIG_BONDING=m
+CONFIG_DUMMY=m
CONFIG_TUN=m
-CONFIG_NET_ETHERNET=y
+CONFIG_ACENIC=m
+CONFIG_TIGON3=m
CONFIG_NET_TULIP=y
CONFIG_DE2104X=m
CONFIG_TULIP=y
CONFIG_TULIP_MMIO=y
-CONFIG_NET_PCI=y
CONFIG_E100=m
-CONFIG_ACENIC=m
CONFIG_E1000=m
-CONFIG_TIGON3=m
CONFIG_PPP=m
-CONFIG_PPP_ASYNC=m
-CONFIG_PPP_SYNC_TTY=m
-CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
CONFIG_PPPOE=m
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1600
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=1200
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
# CONFIG_KEYBOARD_ATKBD is not set
# CONFIG_MOUSE_PS2 is not set
CONFIG_SERIO=m
@@ -111,7 +97,6 @@ CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_HW_RANDOM is not set
CONFIG_RAW_DRIVER=y
# CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
@@ -121,9 +106,6 @@ CONFIG_LOGO=y
CONFIG_SOUND=y
CONFIG_SND=y
CONFIG_SND_SEQUENCER=y
-CONFIG_SND_MIXER_OSS=y
-CONFIG_SND_PCM_OSS=y
-CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_AD1889=y
CONFIG_USB_HIDDEV=y
CONFIG_USB=y
@@ -139,7 +121,6 @@ CONFIG_USB_MICROTEK=m
CONFIG_USB_LEGOTOWER=m
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
-# CONFIG_EXT3_FS_XATTR is not set
CONFIG_XFS_FS=m
CONFIG_AUTOFS4_FS=y
CONFIG_ISO9660_FS=y
@@ -149,7 +130,6 @@ CONFIG_VFAT_FS=m
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
CONFIG_ROOT_NFS=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
@@ -159,18 +139,13 @@ CONFIG_NLS_ASCII=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_UTF8=m
-CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_CHECK=y
-CONFIG_DEBUG_KERNEL=y
+CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_MUTEXES=y
# CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_MD5=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_DES=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
-CONFIG_LIBCRC32C=m
diff --git a/arch/parisc/configs/c8000_defconfig b/arch/parisc/configs/c8000_defconfig
index f6a4c016304b..088ab948a5ca 100644
--- a/arch/parisc/configs/c8000_defconfig
+++ b/arch/parisc/configs/c8000_defconfig
@@ -1,16 +1,13 @@
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
-CONFIG_FHANDLE=y
+# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
-CONFIG_RD_BZIP2=y
-CONFIG_RD_LZMA=y
-CONFIG_RD_LZO=y
CONFIG_EXPERT=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_SLAB=y
@@ -23,7 +20,6 @@ CONFIG_PA8X00=y
CONFIG_64BIT=y
CONFIG_SMP=y
CONFIG_PREEMPT=y
-# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_IOMMU_CCIO=y
CONFIG_PCI=y
CONFIG_PCI_LBA=y
@@ -146,7 +142,6 @@ CONFIG_FB_FOREIGN_ENDIAN=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y
# CONFIG_FB_STI is not set
-CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_LCD_CLASS_DEVICE is not set
# CONFIG_BACKLIGHT_GENERIC is not set
CONFIG_FRAMEBUFFER_CONSOLE=y
@@ -157,12 +152,9 @@ CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_CLUT224 is not set
CONFIG_SOUND=m
CONFIG_SND=m
+CONFIG_SND_VERBOSE_PRINTK=y
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
-CONFIG_SND_MIXER_OSS=m
-CONFIG_SND_PCM_OSS=m
-CONFIG_SND_SEQUENCER_OSS=y
-CONFIG_SND_VERBOSE_PRINTK=y
CONFIG_SND_AD1889=m
# CONFIG_SND_USB is not set
# CONFIG_SND_GSC is not set
@@ -174,8 +166,6 @@ CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS=y
-# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
-CONFIG_EXT4_FS=m
CONFIG_REISERFS_FS=m
CONFIG_REISERFS_PROC_INFO=y
CONFIG_XFS_FS=m
@@ -238,11 +228,8 @@ CONFIG_DEBUG_SLAB=y
CONFIG_DEBUG_SLAB_LEAK=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DEBUG_STACKOVERFLOW=y
-CONFIG_LOCKUP_DETECTOR=y
-CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
CONFIG_PANIC_ON_OOPS=y
CONFIG_DEBUG_RT_MUTEXES=y
-CONFIG_PROVE_RCU_DELAY=y
CONFIG_DEBUG_BLOCK_EXT_DEVT=y
CONFIG_LATENCYTOP=y
CONFIG_KEYS=y
diff --git a/arch/parisc/configs/default_defconfig b/arch/parisc/configs/default_defconfig
index 310b6657e4ac..52c9050a7c5c 100644
--- a/arch/parisc/configs/default_defconfig
+++ b/arch/parisc/configs/default_defconfig
@@ -1,11 +1,9 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
-CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_KALLSYMS_ALL=y
CONFIG_SLAB=y
@@ -41,9 +39,7 @@ CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
-# CONFIG_INET_LRO is not set
CONFIG_INET_DIAG=m
-CONFIG_IPV6=y
CONFIG_INET6_AH=y
CONFIG_INET6_ESP=y
CONFIG_INET6_IPCOMP=y
@@ -82,26 +78,23 @@ CONFIG_MD_RAID1=y
CONFIG_MD_RAID10=y
CONFIG_BLK_DEV_DM=y
CONFIG_NETDEVICES=y
-CONFIG_DUMMY=m
CONFIG_BONDING=m
+CONFIG_DUMMY=m
CONFIG_TUN=m
-CONFIG_NET_ETHERNET=y
-CONFIG_MII=m
-CONFIG_LASI_82596=y
-CONFIG_NET_TULIP=y
-CONFIG_TULIP=y
-CONFIG_NET_PCI=y
CONFIG_ACENIC=y
CONFIG_TIGON3=y
-CONFIG_NET_PCMCIA=y
+CONFIG_NET_TULIP=y
+CONFIG_TULIP=y
+CONFIG_LASI_82596=y
CONFIG_PPP=m
-CONFIG_PPP_ASYNC=m
-CONFIG_PPP_SYNC_TTY=m
-CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
CONFIG_PPPOE=m
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
# CONFIG_KEYBOARD_HIL_OLD is not set
CONFIG_MOUSE_SERIAL=y
+CONFIG_LEGACY_PTY_COUNT=64
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_CS=y
@@ -109,31 +102,24 @@ CONFIG_SERIAL_8250_NR_UARTS=17
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
-CONFIG_LEGACY_PTY_COUNT=64
CONFIG_PRINTER=m
CONFIG_PPDEV=m
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y
CONFIG_DUMMY_CONSOLE_COLUMNS=128
CONFIG_DUMMY_CONSOLE_ROWS=48
CONFIG_FRAMEBUFFER_CONSOLE=y
-CONFIG_FONTS=y
-CONFIG_FONT_8x16=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
# CONFIG_LOGO_LINUX_CLUT224 is not set
CONFIG_SOUND=y
CONFIG_SND=y
-CONFIG_SND_SEQUENCER=y
-CONFIG_SND_MIXER_OSS=y
-CONFIG_SND_PCM_OSS=y
-CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_DYNAMIC_MINORS=y
+CONFIG_SND_SEQUENCER=y
CONFIG_SND_AD1889=y
CONFIG_SND_HARMONY=y
CONFIG_HID_GYRATION=y
@@ -141,7 +127,6 @@ CONFIG_HID_NTRIG=y
CONFIG_HID_PANTHERLORD=y
CONFIG_HID_PETALYNX=y
CONFIG_HID_SAMSUNG=y
-CONFIG_HID_SONY=y
CONFIG_HID_SUNPLUS=y
CONFIG_HID_TOPSEED=y
CONFIG_USB=y
@@ -150,21 +135,15 @@ CONFIG_USB_OHCI_HCD=y
CONFIG_USB_UHCI_HCD=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
-# CONFIG_EXT3_FS_XATTR is not set
-CONFIG_AUTOFS_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_VFAT_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
CONFIG_ROOT_NFS=y
CONFIG_NFSD=y
CONFIG_NFSD_V4=y
-CONFIG_RPCSEC_GSS_SPKM3=m
-CONFIG_SMB_FS=m
-CONFIG_SMB_NLS_DEFAULT=y
CONFIG_CIFS=m
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
@@ -204,30 +183,24 @@ CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=y
-CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_CHECK=y
+CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MUTEXES=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_KEYS=y
-CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MICHAEL_MIC=m
-CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m
-CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_ANUBIS=m
-CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
CONFIG_LIBCRC32C=m
+CONFIG_FONTS=y
diff --git a/arch/parisc/configs/generic-32bit_defconfig b/arch/parisc/configs/generic-32bit_defconfig
index 8688ba7f5966..37ae4b57c001 100644
--- a/arch/parisc/configs/generic-32bit_defconfig
+++ b/arch/parisc/configs/generic-32bit_defconfig
@@ -2,15 +2,11 @@ CONFIG_LOCALVERSION="-32bit"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
-CONFIG_FHANDLE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
CONFIG_BLK_DEV_INITRD=y
-CONFIG_RD_BZIP2=y
-CONFIG_RD_LZMA=y
-CONFIG_RD_LZO=y
CONFIG_EXPERT=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_PERF_EVENTS=y
@@ -49,7 +45,6 @@ CONFIG_INET_ESP=m
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
CONFIG_INET_DIAG=m
CONFIG_LLC2=m
# CONFIG_WIRELESS is not set
@@ -149,10 +144,8 @@ CONFIG_PRINTER=m
CONFIG_PPDEV=m
# CONFIG_HW_RANDOM is not set
CONFIG_I2C=y
-CONFIG_POWER_SUPPLY=y
# CONFIG_HWMON is not set
CONFIG_AGP=y
-CONFIG_VIDEO_OUTPUT_CONTROL=y
CONFIG_FB=y
CONFIG_FB_FOREIGN_ENDIAN=y
CONFIG_FB_MODE_HELPERS=y
@@ -169,11 +162,8 @@ CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_CLUT224 is not set
CONFIG_SOUND=m
CONFIG_SND=m
-CONFIG_SND_SEQUENCER=m
-CONFIG_SND_MIXER_OSS=m
-CONFIG_SND_PCM_OSS=m
-CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_DYNAMIC_MINORS=y
+CONFIG_SND_SEQUENCER=m
CONFIG_SND_AD1889=m
CONFIG_SND_HARMONY=m
CONFIG_HIDRAW=y
@@ -223,12 +213,7 @@ CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS=y
-# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_EXT3_FS_SECURITY=y
-CONFIG_EXT4_FS=y
-CONFIG_XFS_FS=m
-CONFIG_XFS_QUOTA=y
-CONFIG_XFS_RT=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_QFMT_V2=y
@@ -293,15 +278,12 @@ CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DEBUG_STACKOVERFLOW=y
CONFIG_DEBUG_SHIRQ=y
CONFIG_DETECT_HUNG_TASK=y
-CONFIG_TIMER_STATS=y
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
-CONFIG_RCU_CPU_STALL_INFO=y
CONFIG_LATENCYTOP=y
CONFIG_LKDTM=m
CONFIG_KEYS=y
-CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_MD5=y
@@ -320,7 +302,6 @@ CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_DEFLATE=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRC_CCITT=m
CONFIG_CRC_T10DIF=y
CONFIG_FONTS=y
diff --git a/arch/parisc/configs/generic-64bit_defconfig b/arch/parisc/configs/generic-64bit_defconfig
index c564e6e1fa23..d39e7f821aba 100644
--- a/arch/parisc/configs/generic-64bit_defconfig
+++ b/arch/parisc/configs/generic-64bit_defconfig
@@ -8,10 +8,11 @@ CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
-# CONFIG_UTS_NS is not set
-# CONFIG_IPC_NS is not set
-# CONFIG_PID_NS is not set
-# CONFIG_NET_NS is not set
+CONFIG_CGROUPS=y
+CONFIG_MEMCG=y
+CONFIG_MEMCG_SWAP=y
+CONFIG_CGROUP_PIDS=y
+CONFIG_CPUSETS=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
@@ -52,7 +53,6 @@ CONFIG_INET_ESP=m
CONFIG_INET_XFRM_MODE_TRANSPORT=m
CONFIG_INET_XFRM_MODE_TUNNEL=m
CONFIG_INET_XFRM_MODE_BEET=m
-CONFIG_INET_LRO=m
CONFIG_INET_DIAG=m
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_ADVANCED is not set
@@ -84,7 +84,6 @@ CONFIG_PATA_SIL680=y
CONFIG_ATA_GENERIC=y
CONFIG_MD=y
CONFIG_MD_LINEAR=m
-CONFIG_MD_RAID0=m
CONFIG_BLK_DEV_DM=m
CONFIG_DM_RAID=m
CONFIG_DM_UEVENT=y
@@ -138,21 +137,21 @@ CONFIG_QLGE=m
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
+CONFIG_MDIO_BITBANG=m
CONFIG_PHYLIB=y
-CONFIG_MARVELL_PHY=m
-CONFIG_DAVICOM_PHY=m
-CONFIG_QSEMI_PHY=m
-CONFIG_LXT_PHY=m
-CONFIG_CICADA_PHY=m
-CONFIG_VITESSE_PHY=m
-CONFIG_SMSC_PHY=m
CONFIG_BROADCOM_PHY=m
+CONFIG_CICADA_PHY=m
+CONFIG_DAVICOM_PHY=m
CONFIG_ICPLUS_PHY=m
-CONFIG_REALTEK_PHY=m
+CONFIG_LSI_ET1011C_PHY=m
+CONFIG_LXT_PHY=m
+CONFIG_MARVELL_PHY=m
CONFIG_NATIONAL_PHY=m
+CONFIG_QSEMI_PHY=m
+CONFIG_REALTEK_PHY=m
+CONFIG_SMSC_PHY=m
CONFIG_STE10XP=m
-CONFIG_LSI_ET1011C_PHY=m
-CONFIG_MDIO_BITBANG=m
+CONFIG_VITESSE_PHY=m
CONFIG_SLIP=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLIP_SMART=y
@@ -166,10 +165,8 @@ CONFIG_INPUT_MISC=y
CONFIG_SERIO_SERPORT=m
# CONFIG_HP_SDC is not set
CONFIG_SERIO_RAW=m
-CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_NOZOMI=m
-# CONFIG_DEVKMEM is not set
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
CONFIG_SERIAL_8250_CONSOLE=y
@@ -207,10 +204,8 @@ CONFIG_AGP=y
CONFIG_AGP_PARISC=y
CONFIG_DRM=y
CONFIG_DRM_RADEON=y
-CONFIG_DRM_RADEON_UMS=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_MODE_HELPERS=y
-CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_BACKLIGHT_GENERIC is not set
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
CONFIG_LOGO=y
@@ -246,8 +241,6 @@ CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_SECURITY=y
-CONFIG_EXT4_FS=y
-CONFIG_EXT4_FS_SECURITY=y
CONFIG_XFS_FS=m
CONFIG_BTRFS_FS=m
CONFIG_QUOTA=y
@@ -286,27 +279,16 @@ CONFIG_DEBUG_FS=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_STACKOVERFLOW=y
-CONFIG_LOCKUP_DETECTOR=y
-CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
-CONFIG_BOOTPARAM_HUNG_TASK_PANIC=y
# CONFIG_SCHED_DEBUG is not set
-CONFIG_TIMER_STATS=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
-CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_DEFLATE=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC_CCITT=m
CONFIG_LIBCRC32C=y
-CONFIG_XZ_DEC_X86=y
-CONFIG_XZ_DEC_POWERPC=y
-CONFIG_XZ_DEC_IA64=y
-CONFIG_XZ_DEC_ARM=y
-CONFIG_XZ_DEC_ARMTHUMB=y
-CONFIG_XZ_DEC_SPARC=y
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index a9909c2d04c5..a41139575ab4 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -1,5 +1,3 @@
-
-generic-y += auxvec.h
generic-y += barrier.h
generic-y += clkdev.h
generic-y += current.h
@@ -11,14 +9,12 @@ generic-y += hw_irq.h
generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += kdebug.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
-generic-y += param.h
generic-y += percpu.h
-generic-y += poll.h
generic-y += preempt.h
generic-y += seccomp.h
generic-y += segment.h
@@ -28,4 +24,3 @@ generic-y += user.h
generic-y += vga.h
generic-y += word-at-a-time.h
generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 5394b9c5f914..17b98a87e5e2 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -65,6 +65,8 @@ static __inline__ void atomic_set(atomic_t *v, int i)
_atomic_spin_unlock_irqrestore(v, flags);
}
+#define atomic_set_release(v, i) atomic_set((v), (i))
+
static __inline__ int atomic_read(const atomic_t *v)
{
return READ_ONCE((v)->counter);
diff --git a/arch/parisc/include/asm/bug.h b/arch/parisc/include/asm/bug.h
index d2742273a685..07ea467f22fc 100644
--- a/arch/parisc/include/asm/bug.h
+++ b/arch/parisc/include/asm/bug.h
@@ -27,7 +27,7 @@
do { \
asm volatile("\n" \
"1:\t" PARISC_BUG_BREAK_ASM "\n" \
- "\t.pushsection __bug_table,\"a\"\n" \
+ "\t.pushsection __bug_table,\"aw\"\n" \
"2:\t" ASM_WORD_INSN "1b, %c0\n" \
"\t.short %c1, %c2\n" \
"\t.org 2b+%c3\n" \
@@ -50,7 +50,7 @@
do { \
asm volatile("\n" \
"1:\t" PARISC_BUG_BREAK_ASM "\n" \
- "\t.pushsection __bug_table,\"a\"\n" \
+ "\t.pushsection __bug_table,\"aw\"\n" \
"2:\t" ASM_WORD_INSN "1b, %c0\n" \
"\t.short %c1, %c2\n" \
"\t.org 2b+%c3\n" \
@@ -64,7 +64,7 @@
do { \
asm volatile("\n" \
"1:\t" PARISC_BUG_BREAK_ASM "\n" \
- "\t.pushsection __bug_table,\"a\"\n" \
+ "\t.pushsection __bug_table,\"aw\"\n" \
"2:\t" ASM_WORD_INSN "1b\n" \
"\t.short %c0\n" \
"\t.org 2b+%c1\n" \
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 5404c6a726b2..2b16282add69 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -54,12 +54,13 @@ parisc_walk_tree(struct device *dev)
break;
}
}
- BUG_ON(!dev->platform_data);
return dev->platform_data;
}
-
-#define GET_IOC(dev) (HBA_DATA(parisc_walk_tree(dev))->iommu)
-
+
+#define GET_IOC(dev) ({ \
+ void *__pdata = parisc_walk_tree(dev); \
+ __pdata ? HBA_DATA(__pdata)->iommu : NULL; \
+})
#ifdef CONFIG_IOMMU_CCIO
struct parisc_device;
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index 0ba14300cd8e..c601aab2fb36 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -32,22 +32,12 @@ _futex_spin_unlock_irqrestore(u32 __user *uaddr, unsigned long int *flags)
}
static inline int
-futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
{
unsigned long int flags;
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
int oldval, ret;
u32 tmp;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(*uaddr)))
- return -EFAULT;
-
_futex_spin_lock_irqsave(uaddr, &flags);
pagefault_disable();
@@ -85,17 +75,9 @@ out_pagefault_enable:
pagefault_enable();
_futex_spin_unlock_irqrestore(uaddr, &flags);
- if (ret == 0) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
- case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
- case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
- case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
- case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
- case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
- default: ret = -ENOSYS;
- }
- }
+ if (!ret)
+ *oval = oldval;
+
return ret;
}
diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
index 1a16f1d1075f..af98254f7257 100644
--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -34,10 +34,10 @@ static inline unsigned char gsc_readb(unsigned long addr)
unsigned char ret;
__asm__ __volatile__(
- " rsm 2,%0\n"
+ " rsm %3,%0\n"
" ldbx 0(%2),%1\n"
" mtsm %0\n"
- : "=&r" (flags), "=r" (ret) : "r" (addr) );
+ : "=&r" (flags), "=r" (ret) : "r" (addr), "i" (PSW_SM_D) );
return ret;
}
@@ -48,10 +48,10 @@ static inline unsigned short gsc_readw(unsigned long addr)
unsigned short ret;
__asm__ __volatile__(
- " rsm 2,%0\n"
+ " rsm %3,%0\n"
" ldhx 0(%2),%1\n"
" mtsm %0\n"
- : "=&r" (flags), "=r" (ret) : "r" (addr) );
+ : "=&r" (flags), "=r" (ret) : "r" (addr), "i" (PSW_SM_D) );
return ret;
}
@@ -87,20 +87,20 @@ static inline void gsc_writeb(unsigned char val, unsigned long addr)
{
long flags;
__asm__ __volatile__(
- " rsm 2,%0\n"
+ " rsm %3,%0\n"
" stbs %1,0(%2)\n"
" mtsm %0\n"
- : "=&r" (flags) : "r" (val), "r" (addr) );
+ : "=&r" (flags) : "r" (val), "r" (addr), "i" (PSW_SM_D) );
}
static inline void gsc_writew(unsigned short val, unsigned long addr)
{
long flags;
__asm__ __volatile__(
- " rsm 2,%0\n"
+ " rsm %3,%0\n"
" sths %1,0(%2)\n"
" mtsm %0\n"
- : "=&r" (flags) : "r" (val), "r" (addr) );
+ : "=&r" (flags) : "r" (val), "r" (addr), "i" (PSW_SM_D) );
}
static inline void gsc_writel(unsigned int val, unsigned long addr)
diff --git a/arch/parisc/include/asm/mmu_context.h b/arch/parisc/include/asm/mmu_context.h
index 59be25764433..e4a657094058 100644
--- a/arch/parisc/include/asm/mmu_context.h
+++ b/arch/parisc/include/asm/mmu_context.h
@@ -49,15 +49,29 @@ static inline void load_context(mm_context_t context)
mtctl(__space_to_prot(context), 8);
}
-static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk)
+static inline void switch_mm_irqs_off(struct mm_struct *prev,
+ struct mm_struct *next, struct task_struct *tsk)
{
-
if (prev != next) {
mtctl(__pa(next->pgd), 25);
load_context(next->context);
}
}
+static inline void switch_mm(struct mm_struct *prev,
+ struct mm_struct *next, struct task_struct *tsk)
+{
+ unsigned long flags;
+
+ if (prev == next)
+ return;
+
+ local_irq_save(flags);
+ switch_mm_irqs_off(prev, next, tsk);
+ local_irq_restore(flags);
+}
+#define switch_mm_irqs_off switch_mm_irqs_off
+
#define deactivate_mm(tsk,mm) do { } while (0)
static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index 80e742a1c162..bfed09d80bae 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -116,11 +116,15 @@ extern int npmem_ranges;
/* This governs the relationship between virtual and physical addresses.
* If you alter it, make sure to take care of our various fixed mapping
* segments in fixmap.h */
+#if defined(BOOTLOADER)
+#define __PAGE_OFFSET (0) /* bootloader uses physical addresses */
+#else
#ifdef CONFIG_64BIT
#define __PAGE_OFFSET (0x40000000) /* 1GB */
#else
#define __PAGE_OFFSET (0x10000000) /* 256MB */
#endif
+#endif /* BOOTLOADER */
#define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET)
diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index 451906d78136..510341f62d97 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -5,7 +5,11 @@
#if !defined(__ASSEMBLY__)
+extern int parisc_narrow_firmware;
+
extern int pdc_type;
+extern unsigned long parisc_cell_num; /* cell number the CPU runs on (PAT) */
+extern unsigned long parisc_cell_loc; /* cell location of CPU (PAT) */
/* Values for pdc_type */
#define PDC_TYPE_ILLEGAL -1
@@ -143,6 +147,18 @@ struct pdc_btlb_info { /* PDC_BLOCK_TLB, return of PDC_BTLB_INFO */
#endif /* !CONFIG_PA20 */
+struct pdc_mem_retinfo { /* PDC_MEM/PDC_MEM_MEMINFO (return info) */
+ unsigned long pdt_size;
+ unsigned long pdt_entries;
+ unsigned long pdt_status;
+ unsigned long first_dbe_loc;
+ unsigned long good_mem;
+};
+
+struct pdc_mem_read_pdt { /* PDC_MEM/PDC_MEM_READ_PDT (return info) */
+ unsigned long pdt_entries;
+};
+
#ifdef CONFIG_64BIT
struct pdc_memory_table_raddr { /* PDC_MEM/PDC_MEM_TABLE (return info) */
unsigned long entries_returned;
@@ -264,6 +280,7 @@ void setup_pdc(void); /* in inventory.c */
/* wrapper-functions from pdc.c */
int pdc_add_valid(unsigned long address);
+int pdc_instr(unsigned int *instr);
int pdc_chassis_info(struct pdc_chassis_info *chassis_info, void *led_info, unsigned long len);
int pdc_chassis_disp(unsigned long disp);
int pdc_chassis_warn(unsigned long *warn);
@@ -301,6 +318,10 @@ int pdc_get_initiator(struct hardware_path *, struct pdc_initiator *);
int pdc_tod_read(struct pdc_tod *tod);
int pdc_tod_set(unsigned long sec, unsigned long usec);
+void pdc_pdt_init(void); /* in pdt.c */
+int pdc_mem_pdt_info(struct pdc_mem_retinfo *rinfo);
+int pdc_mem_pdt_read_entries(struct pdc_mem_read_pdt *rpdt_read,
+ unsigned long *pdt_entries_ptr);
#ifdef CONFIG_64BIT
int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr,
struct pdc_memory_table *tbl, unsigned long entries);
diff --git a/arch/parisc/include/asm/pdcpat.h b/arch/parisc/include/asm/pdcpat.h
index e1d289092705..a468a172ee33 100644
--- a/arch/parisc/include/asm/pdcpat.h
+++ b/arch/parisc/include/asm/pdcpat.h
@@ -147,10 +147,10 @@
#define PDC_PAT_MEM_CELL_CLEAR 6L /* Clear PDT For Cell */
#define PDC_PAT_MEM_CELL_READ 7L /* Read PDT entries For Cell */
#define PDC_PAT_MEM_CELL_RESET 8L /* Reset clear bit For Cell */
-#define PDC_PAT_MEM_SETGM 9L /* Set Golden Memory value */
-#define PDC_PAT_MEM_ADD_PAGE 10L /* ADDs a page to the cell */
-#define PDC_PAT_MEM_ADDRESS 11L /* Get Physical Location From */
- /* Memory Address */
+#define PDC_PAT_MEM_SETGM 9L /* Set Good Memory value */
+#define PDC_PAT_MEM_ADD_PAGE 10L /* ADDs a page to the cell */
+#define PDC_PAT_MEM_ADDRESS 11L /* Get Physical Location From */
+ /* Memory Address */
#define PDC_PAT_MEM_GET_TXT_SIZE 12L /* Get Formatted Text Size */
#define PDC_PAT_MEM_GET_PD_TXT 13L /* Get PD Formatted Text */
#define PDC_PAT_MEM_GET_CELL_TXT 14L /* Get Cell Formatted Text */
@@ -212,6 +212,46 @@ struct pdc_pat_cpu_num {
unsigned long cpu_loc;
};
+struct pdc_pat_mem_retinfo { /* PDC_PAT_MEM/PDC_PAT_MEM_PD_INFO (return info) */
+ unsigned int ke; /* bit 0: memory inside good memory? */
+ unsigned int current_pdt_entries:16;
+ unsigned int max_pdt_entries:16;
+ unsigned long Cs_bitmap;
+ unsigned long Ic_bitmap;
+ unsigned long good_mem;
+ unsigned long first_dbe_loc; /* first location of double bit error */
+ unsigned long clear_time; /* last PDT clear time (since Jan 1970) */
+};
+
+struct pdc_pat_mem_cell_pdt_retinfo { /* PDC_PAT_MEM/PDC_PAT_MEM_CELL_INFO */
+ u64 reserved:32;
+ u64 cs:1; /* clear status: cleared since the last call? */
+ u64 current_pdt_entries:15;
+ u64 ic:1; /* interleaving had to be changed ? */
+ u64 max_pdt_entries:15;
+ unsigned long good_mem;
+ unsigned long first_dbe_loc; /* first location of double bit error */
+ unsigned long clear_time; /* last PDT clear time (since Jan 1970) */
+};
+
+
+struct pdc_pat_mem_read_pd_retinfo { /* PDC_PAT_MEM/PDC_PAT_MEM_PD_READ */
+ unsigned long actual_count_bytes;
+ unsigned long pdt_entries;
+};
+
+struct pdc_pat_mem_phys_mem_location { /* PDC_PAT_MEM/PDC_PAT_MEM_ADDRESS */
+ u64 cabinet:8;
+ u64 ign1:8;
+ u64 ign2:8;
+ u64 cell_slot:8;
+ u64 ign3:8;
+ u64 dimm_slot:8; /* DIMM slot, e.g. 0x1A, 0x2B, show user hex value! */
+ u64 ign4:8;
+ u64 source:4; /* for mem: always 0x07 */
+ u64 source_detail:4; /* for mem: always 0x04 (SIMM or DIMM) */
+};
+
struct pdc_pat_pd_addr_map_entry {
unsigned char entry_type; /* 1 = Memory Descriptor Entry Type */
unsigned char reserve1[5];
@@ -293,15 +333,20 @@ extern int pdc_pat_cpu_get_number(struct pdc_pat_cpu_num *cpu_info, unsigned lon
extern int pdc_pat_pd_get_addr_map(unsigned long *actual_len, void *mem_addr, unsigned long count, unsigned long offset);
-
extern int pdc_pat_io_pci_cfg_read(unsigned long pci_addr, int pci_size, u32 *val);
extern int pdc_pat_io_pci_cfg_write(unsigned long pci_addr, int pci_size, u32 val);
-
-/* Flag to indicate this is a PAT box...don't use this unless you
-** really have to...it might go away some day.
-*/
-extern int pdc_pat; /* arch/parisc/kernel/inventory.c */
+extern int pdc_pat_mem_pdt_info(struct pdc_pat_mem_retinfo *rinfo);
+extern int pdc_pat_mem_pdt_cell_info(struct pdc_pat_mem_cell_pdt_retinfo *rinfo,
+ unsigned long cell);
+extern int pdc_pat_mem_read_cell_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
+ unsigned long *pdt_entries_ptr, unsigned long max_entries);
+extern int pdc_pat_mem_read_pd_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
+ unsigned long *pdt_entries_ptr, unsigned long count,
+ unsigned long offset);
+extern int pdc_pat_mem_get_dimm_phys_location(
+ struct pdc_pat_mem_phys_mem_location *pret,
+ unsigned long phys_addr);
#endif /* __ASSEMBLY__ */
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 3a4ed9f91d57..71ca86cb0f16 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -511,6 +511,9 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
#define pte_same(A,B) (pte_val(A) == pte_val(B))
+struct seq_file;
+extern void arch_report_meminfo(struct seq_file *m);
+
#endif /* !__ASSEMBLY__ */
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 4c6694b4e77e..b3b66c3d6f3c 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -103,6 +103,8 @@ struct cpuinfo_parisc {
unsigned long bh_count; /* number of times bh was invoked */
unsigned long fp_rev;
unsigned long fp_model;
+ unsigned long cpu_num; /* CPU number from PAT firmware */
+ unsigned long cpu_loc; /* CPU location from PAT firmware */
unsigned int state;
struct parisc_device *dev;
unsigned long loops_per_jiffy;
diff --git a/arch/parisc/include/asm/smp.h b/arch/parisc/include/asm/smp.h
index a5dc9066c6d8..ad9c9c3b4136 100644
--- a/arch/parisc/include/asm/smp.h
+++ b/arch/parisc/include/asm/smp.h
@@ -1,6 +1,7 @@
#ifndef __ASM_SMP_H
#define __ASM_SMP_H
+extern int init_per_cpu(int cpuid);
#if defined(CONFIG_SMP)
diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h
index e32936cd7f10..55bfe4affca3 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -14,13 +14,6 @@ static inline int arch_spin_is_locked(arch_spinlock_t *x)
#define arch_spin_lock(lock) arch_spin_lock_flags(lock, 0)
-static inline void arch_spin_unlock_wait(arch_spinlock_t *x)
-{
- volatile unsigned int *a = __ldcw_align(x);
-
- smp_cond_load_acquire(a, VAL);
-}
-
static inline void arch_spin_lock_flags(arch_spinlock_t *x,
unsigned long flags)
{
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index 88fe0aad4390..bc208136bbb2 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -34,7 +34,7 @@ struct thread_info {
/* thread information allocation */
-#define THREAD_SIZE_ORDER 2 /* PA-RISC requires at least 16k stack */
+#define THREAD_SIZE_ORDER 3 /* PA-RISC requires at least 32k stack */
/* Be sure to hunt all references to this down when you change the size of
* the kernel stack */
#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 6b113f39f30c..cab33a0d0e82 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -6,7 +6,6 @@
*/
#include <asm/page.h>
#include <asm/cache.h>
-#include <asm-generic/uaccess-unaligned.h>
#include <linux/bug.h>
#include <linux/string.h>
@@ -69,17 +68,6 @@ struct exception_table_entry {
ASM_EXCEPTIONTABLE_ENTRY( fault_addr, except_addr + 1)
/*
- * The page fault handler stores, in a per-cpu area, the following information
- * if a fixup routine is available.
- */
-struct exception_data {
- unsigned long fault_ip;
- unsigned long fault_gp;
- unsigned long fault_space;
- unsigned long fault_addr;
-};
-
-/*
* load_sr2() preloads the space register %%sr2 - based on the value of
* get_fs() - with either a value of 0 to access kernel space (KERNEL_DS which
* is 0), or with the current value of %%sr3 to access user space (USER_DS)
@@ -220,7 +208,6 @@ extern long lstrnlen_user(const char __user *, long);
#define user_addr_max() (~0UL)
#define strnlen_user lstrnlen_user
-#define strlen_user(str) lstrnlen_user(str, 0x7fffffffL)
#define clear_user lclear_user
#define __clear_user lclear_user
diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 5f4c68daa261..7dc31c84dd37 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -156,7 +156,6 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
#define __ARCH_WANT_SYS_GETPGRP
#define __ARCH_WANT_SYS_LLSEEK
#define __ARCH_WANT_SYS_NICE
-#define __ARCH_WANT_SYS_OLD_GETRLIMIT
#define __ARCH_WANT_SYS_OLDUMOUNT
#define __ARCH_WANT_SYS_SIGPENDING
#define __ARCH_WANT_SYS_SIGPROCMASK
diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild
index 3971c60a7e7f..196d2a4efb31 100644
--- a/arch/parisc/include/uapi/asm/Kbuild
+++ b/arch/parisc/include/uapi/asm/Kbuild
@@ -1,4 +1,8 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+generic-y += auxvec.h
+generic-y += kvm_para.h
+generic-y += param.h
+generic-y += poll.h
generic-y += resource.h
diff --git a/arch/parisc/include/uapi/asm/ioctls.h b/arch/parisc/include/uapi/asm/ioctls.h
index b6572f051b67..d0e3321403be 100644
--- a/arch/parisc/include/uapi/asm/ioctls.h
+++ b/arch/parisc/include/uapi/asm/ioctls.h
@@ -60,6 +60,7 @@
#define TIOCGPKT _IOR('T', 0x38, int) /* Get packet mode state */
#define TIOCGPTLCK _IOR('T', 0x39, int) /* Get Pty lock state */
#define TIOCGEXCL _IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER _IO('T', 0x41) /* Safely open the slave */
#define FIONCLEX 0x5450 /* these numbers need to be adjusted. */
#define FIOCLEX 0x5451
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 5979745815a5..775b5d5e41a1 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -40,9 +40,6 @@
#define MADV_SEQUENTIAL 2 /* expect sequential page references */
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_DONTNEED 4 /* don't need these pages */
-#define MADV_SPACEAVAIL 5 /* insure that resources are reserved */
-#define MADV_VPS_PURGE 6 /* Purge pages from VM page cache */
-#define MADV_VPS_INHERIT 7 /* Inherit parents page size */
/* common/generic parameters */
#define MADV_FREE 8 /* free pages only if memory pressure */
@@ -60,21 +57,16 @@
overrides the coredump filter bits */
#define MADV_DODUMP 70 /* Clear the MADV_NODUMP flag */
+#define MADV_WIPEONFORK 71 /* Zero memory on fork, child only */
+#define MADV_KEEPONFORK 72 /* Undo MADV_WIPEONFORK */
+
+#define MADV_HWPOISON 100 /* poison a page for testing */
+#define MADV_SOFT_OFFLINE 101 /* soft offline page for testing */
+
/* compatibility flags */
#define MAP_FILE 0
#define MAP_VARIABLE 0
-/*
- * When MAP_HUGETLB is set bits [26:31] encode the log2 of the huge page size.
- * This gives us 6 bits, which is enough until someone invents 128 bit address
- * spaces.
- *
- * Assume these are all power of twos.
- * When 0 use the default page size.
- */
-#define MAP_HUGE_SHIFT 26
-#define MAP_HUGE_MASK 0x3f
-
#define PKEY_DISABLE_ACCESS 0x1
#define PKEY_DISABLE_WRITE 0x2
#define PKEY_ACCESS_MASK (PKEY_DISABLE_ACCESS |\
diff --git a/arch/parisc/include/uapi/asm/pdc.h b/arch/parisc/include/uapi/asm/pdc.h
index 0609ff117f67..1f30b49772aa 100644
--- a/arch/parisc/include/uapi/asm/pdc.h
+++ b/arch/parisc/include/uapi/asm/pdc.h
@@ -131,12 +131,12 @@
#define PDC_TLB_SETUP 1 /* set up miss handling */
#define PDC_MEM 20 /* Manage memory */
-#define PDC_MEM_MEMINFO 0
-#define PDC_MEM_ADD_PAGE 1
-#define PDC_MEM_CLEAR_PDT 2
-#define PDC_MEM_READ_PDT 3
-#define PDC_MEM_RESET_CLEAR 4
-#define PDC_MEM_GOODMEM 5
+#define PDC_MEM_MEMINFO 0 /* Return PDT info */
+#define PDC_MEM_ADD_PAGE 1 /* Add page to PDT */
+#define PDC_MEM_CLEAR_PDT 2 /* Clear PDT */
+#define PDC_MEM_READ_PDT 3 /* Read PDT entry */
+#define PDC_MEM_RESET_CLEAR 4 /* Reset PDT clear flag */
+#define PDC_MEM_GOODMEM 5 /* Set good_mem value */
#define PDC_MEM_TABLE 128 /* Non contig mem map (sprockets) */
#define PDC_MEM_RETURN_ADDRESS_TABLE PDC_MEM_TABLE
#define PDC_MEM_GET_MEMORY_SYSTEM_TABLES_SIZE 131
diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h
index 514701840bd9..3b2bf7ae703b 100644
--- a/arch/parisc/include/uapi/asm/socket.h
+++ b/arch/parisc/include/uapi/asm/socket.h
@@ -97,4 +97,10 @@
#define SO_COOKIE 0x4032
+#define SCM_TIMESTAMPING_PKTINFO 0x4033
+
+#define SO_PEERGROUPS 0x4034
+
+#define SO_ZEROCOPY 0x4035
+
#endif /* _UAPI_ASM_SOCKET_H */
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index 69a11183d48d..c4294df69fb6 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -4,7 +4,7 @@
extra-y := head.o vmlinux.lds
-obj-y := cache.o pacache.o setup.o traps.o time.o irq.o \
+obj-y := cache.o pacache.o setup.o pdt.o traps.o time.o irq.o \
pa7300lc.o syscall.o entry.o sys_parisc.o firmware.o \
ptrace.o hardware.o inventory.o drivers.o \
signal.o hpmc.o real2.o parisc_ksyms.o unaligned.o \
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index 1c4fe61a592b..dfff8a0d6fd1 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -298,11 +298,6 @@ int main(void)
DEFINE(HUGEPAGE_SIZE, PAGE_SIZE);
#endif
BLANK();
- DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip));
- DEFINE(EXCDATA_GP, offsetof(struct exception_data, fault_gp));
- DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space));
- DEFINE(EXCDATA_ADDR, offsetof(struct exception_data, fault_addr));
- BLANK();
DEFINE(ASM_PDC_RESULT_SIZE, NUM_PDC_RESULT * sizeof(unsigned long));
BLANK();
return 0;
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index c32a09095216..19c0c141bc3f 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -453,8 +453,8 @@ void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
before it can be accessed through the kernel mapping. */
preempt_disable();
flush_dcache_page_asm(__pa(vfrom), vaddr);
- preempt_enable();
copy_page_asm(vto, vfrom);
+ preempt_enable();
}
EXPORT_SYMBOL(copy_user_page);
@@ -539,6 +539,10 @@ void flush_cache_mm(struct mm_struct *mm)
struct vm_area_struct *vma;
pgd_t *pgd;
+ /* Flush the TLB to avoid speculation if coherency is required. */
+ if (parisc_requires_coherency())
+ flush_tlb_all();
+
/* Flushing the whole cache on each cpu takes forever on
rp3440, etc. So, avoid it if the mm isn't too big. */
if (mm_total_size(mm) >= parisc_cache_flush_threshold) {
@@ -577,33 +581,21 @@ void flush_cache_mm(struct mm_struct *mm)
void flush_cache_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{
- unsigned long addr;
- pgd_t *pgd;
-
BUG_ON(!vma->vm_mm->context);
- if ((end - start) >= parisc_cache_flush_threshold) {
- flush_cache_all();
- return;
- }
+ /* Flush the TLB to avoid speculation if coherency is required. */
+ if (parisc_requires_coherency())
+ flush_tlb_range(vma, start, end);
- if (vma->vm_mm->context == mfsp(3)) {
- flush_user_dcache_range_asm(start, end);
- if (vma->vm_flags & VM_EXEC)
- flush_user_icache_range_asm(start, end);
+ if ((end - start) >= parisc_cache_flush_threshold
+ || vma->vm_mm->context != mfsp(3)) {
+ flush_cache_all();
return;
}
- pgd = vma->vm_mm->pgd;
- for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
- unsigned long pfn;
- pte_t *ptep = get_ptep(pgd, addr);
- if (!ptep)
- continue;
- pfn = pte_pfn(*ptep);
- if (pfn_valid(pfn))
- __flush_cache_page(vma, addr, PFN_PHYS(pfn));
- }
+ flush_user_dcache_range_asm(start, end);
+ if (vma->vm_flags & VM_EXEC)
+ flush_user_icache_range_asm(start, end);
}
void
@@ -612,7 +604,8 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
BUG_ON(!vma->vm_mm->context);
if (pfn_valid(pfn)) {
- flush_tlb_page(vma, vmaddr);
+ if (parisc_requires_coherency())
+ flush_tlb_page(vma, vmaddr);
__flush_cache_page(vma, vmaddr, PFN_PHYS(pfn));
}
}
diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index fa78419100c8..d8f77358e2ba 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -575,7 +575,8 @@ static ssize_t name##_show(struct device *dev, struct device_attribute *attr, ch
{ \
struct parisc_device *padev = to_parisc_device(dev); \
return sprintf(buf, format_string, padev->field); \
-}
+} \
+static DEVICE_ATTR_RO(name);
#define pa_dev_attr_id(field, format) pa_dev_attr(field, id.field, format)
@@ -589,22 +590,24 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
{
return make_modalias(dev, buf);
}
+static DEVICE_ATTR_RO(modalias);
-static struct device_attribute parisc_device_attrs[] = {
- __ATTR_RO(irq),
- __ATTR_RO(hw_type),
- __ATTR_RO(rev),
- __ATTR_RO(hversion),
- __ATTR_RO(sversion),
- __ATTR_RO(modalias),
- __ATTR_NULL,
+static struct attribute *parisc_device_attrs[] = {
+ &dev_attr_irq.attr,
+ &dev_attr_hw_type.attr,
+ &dev_attr_rev.attr,
+ &dev_attr_hversion.attr,
+ &dev_attr_sversion.attr,
+ &dev_attr_modalias.attr,
+ NULL,
};
+ATTRIBUTE_GROUPS(parisc_device);
struct bus_type parisc_bus_type = {
.name = "parisc",
.match = parisc_generic_match,
.uevent = parisc_uevent,
- .dev_attrs = parisc_device_attrs,
+ .dev_groups = parisc_device_groups,
.probe = parisc_driver_probe,
.remove = parisc_driver_remove,
};
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 9d797ae4fa22..6d471c00c71a 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -69,7 +69,15 @@
#include <asm/pdcpat.h>
#include <asm/processor.h> /* for boot_cpu_data */
+#if defined(BOOTLOADER)
+# undef spin_lock_irqsave
+# define spin_lock_irqsave(a, b) { b = 1; }
+# undef spin_unlock_irqrestore
+# define spin_unlock_irqrestore(a, b)
+#else
static DEFINE_SPINLOCK(pdc_lock);
+#endif
+
extern unsigned long pdc_result[NUM_PDC_RESULT];
extern unsigned long pdc_result2[NUM_PDC_RESULT];
@@ -142,8 +150,8 @@ static void convert_to_wide(unsigned long *addr)
int i;
unsigned int *p = (unsigned int *)addr;
- if(unlikely(parisc_narrow_firmware)) {
- for(i = 31; i >= 0; --i)
+ if (unlikely(parisc_narrow_firmware)) {
+ for (i = (NUM_PDC_RESULT-1); i >= 0; --i)
addr[i] = p[i];
}
#endif
@@ -186,6 +194,8 @@ void set_firmware_width(void)
}
#endif /*CONFIG_64BIT*/
+
+#if !defined(BOOTLOADER)
/**
* pdc_emergency_unlock - Unlock the linux pdc lock
*
@@ -223,6 +233,26 @@ int pdc_add_valid(unsigned long address)
EXPORT_SYMBOL(pdc_add_valid);
/**
+ * pdc_instr - Get instruction that invokes PDCE_CHECK in HPMC handler.
+ * @instr: Pointer to variable which will get instruction opcode.
+ *
+ * The return value is PDC_OK (0) in case call succeeded.
+ */
+int __init pdc_instr(unsigned int *instr)
+{
+ int retval;
+ unsigned long flags;
+
+ spin_lock_irqsave(&pdc_lock, flags);
+ retval = mem_pdc_call(PDC_INSTR, 0UL, __pa(pdc_result));
+ convert_to_wide(pdc_result);
+ *instr = pdc_result[0];
+ spin_unlock_irqrestore(&pdc_lock, flags);
+
+ return retval;
+}
+
+/**
* pdc_chassis_info - Return chassis information.
* @result: The return buffer.
* @chassis_info: The memory buffer address.
@@ -957,6 +987,47 @@ int pdc_tod_read(struct pdc_tod *tod)
}
EXPORT_SYMBOL(pdc_tod_read);
+int pdc_mem_pdt_info(struct pdc_mem_retinfo *rinfo)
+{
+ int retval;
+ unsigned long flags;
+
+ spin_lock_irqsave(&pdc_lock, flags);
+ retval = mem_pdc_call(PDC_MEM, PDC_MEM_MEMINFO, __pa(pdc_result), 0);
+ convert_to_wide(pdc_result);
+ memcpy(rinfo, pdc_result, sizeof(*rinfo));
+ spin_unlock_irqrestore(&pdc_lock, flags);
+
+ return retval;
+}
+
+int pdc_mem_pdt_read_entries(struct pdc_mem_read_pdt *pret,
+ unsigned long *pdt_entries_ptr)
+{
+ int retval;
+ unsigned long flags;
+
+ spin_lock_irqsave(&pdc_lock, flags);
+ retval = mem_pdc_call(PDC_MEM, PDC_MEM_READ_PDT, __pa(pdc_result),
+ __pa(pdt_entries_ptr));
+ if (retval == PDC_OK) {
+ convert_to_wide(pdc_result);
+ memcpy(pret, pdc_result, sizeof(*pret));
+ }
+ spin_unlock_irqrestore(&pdc_lock, flags);
+
+#ifdef CONFIG_64BIT
+ /*
+ * 64-bit kernels should not call this PDT function in narrow mode.
+ * The pdt_entries_ptr array above will now contain 32-bit values
+ */
+ if (WARN_ON_ONCE((retval == PDC_OK) && parisc_narrow_firmware))
+ return PDC_ERROR;
+#endif
+
+ return retval;
+}
+
/**
* pdc_tod_set - Set the Time-Of-Day clock.
* @sec: The number of seconds since epoch.
@@ -1108,6 +1179,8 @@ void pdc_io_reset_devices(void)
spin_unlock_irqrestore(&pdc_lock, flags);
}
+#endif /* defined(BOOTLOADER) */
+
/* locked by pdc_console_lock */
static int __attribute__((aligned(8))) iodc_retbuf[32];
static char __attribute__((aligned(64))) iodc_dbuf[4096];
@@ -1152,6 +1225,7 @@ print:
return i;
}
+#if !defined(BOOTLOADER)
/**
* pdc_iodc_getc - Read a character (non-blocking) from the PDC console.
*
@@ -1383,7 +1457,138 @@ int pdc_pat_io_pci_cfg_write(unsigned long pci_addr, int pci_size, u32 val)
return retval;
}
+
+/**
+ * pdc_pat_mem_pdc_info - Retrieve information about page deallocation table
+ * @rinfo: memory pdt information
+ *
+ */
+int pdc_pat_mem_pdt_info(struct pdc_pat_mem_retinfo *rinfo)
+{
+ int retval;
+ unsigned long flags;
+
+ spin_lock_irqsave(&pdc_lock, flags);
+ retval = mem_pdc_call(PDC_PAT_MEM, PDC_PAT_MEM_PD_INFO,
+ __pa(&pdc_result));
+ if (retval == PDC_OK)
+ memcpy(rinfo, &pdc_result, sizeof(*rinfo));
+ spin_unlock_irqrestore(&pdc_lock, flags);
+
+ return retval;
+}
+
+/**
+ * pdc_pat_mem_pdt_cell_info - Retrieve information about page deallocation
+ * table of a cell
+ * @rinfo: memory pdt information
+ * @cell: cell number
+ *
+ */
+int pdc_pat_mem_pdt_cell_info(struct pdc_pat_mem_cell_pdt_retinfo *rinfo,
+ unsigned long cell)
+{
+ int retval;
+ unsigned long flags;
+
+ spin_lock_irqsave(&pdc_lock, flags);
+ retval = mem_pdc_call(PDC_PAT_MEM, PDC_PAT_MEM_CELL_INFO,
+ __pa(&pdc_result), cell);
+ if (retval == PDC_OK)
+ memcpy(rinfo, &pdc_result, sizeof(*rinfo));
+ spin_unlock_irqrestore(&pdc_lock, flags);
+
+ return retval;
+}
+
+/**
+ * pdc_pat_mem_read_cell_pdt - Read PDT entries from (old) PAT firmware
+ * @pret: array of PDT entries
+ * @pdt_entries_ptr: ptr to hold number of PDT entries
+ * @max_entries: maximum number of entries to be read
+ *
+ */
+int pdc_pat_mem_read_cell_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
+ unsigned long *pdt_entries_ptr, unsigned long max_entries)
+{
+ int retval;
+ unsigned long flags, entries;
+
+ spin_lock_irqsave(&pdc_lock, flags);
+ /* PDC_PAT_MEM_CELL_READ is available on early PAT machines only */
+ retval = mem_pdc_call(PDC_PAT_MEM, PDC_PAT_MEM_CELL_READ,
+ __pa(&pdc_result), parisc_cell_num,
+ __pa(pdt_entries_ptr));
+
+ if (retval == PDC_OK) {
+ /* build up return value as for PDC_PAT_MEM_PD_READ */
+ entries = min(pdc_result[0], max_entries);
+ pret->pdt_entries = entries;
+ pret->actual_count_bytes = entries * sizeof(unsigned long);
+ }
+
+ spin_unlock_irqrestore(&pdc_lock, flags);
+ WARN_ON(retval == PDC_OK && pdc_result[0] > max_entries);
+
+ return retval;
+}
+/**
+ * pdc_pat_mem_read_pd_pdt - Read PDT entries from (newer) PAT firmware
+ * @pret: array of PDT entries
+ * @pdt_entries_ptr: ptr to hold number of PDT entries
+ * @count: number of bytes to read
+ * @offset: offset to start (in bytes)
+ *
+ */
+int pdc_pat_mem_read_pd_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
+ unsigned long *pdt_entries_ptr, unsigned long count,
+ unsigned long offset)
+{
+ int retval;
+ unsigned long flags, entries;
+
+ spin_lock_irqsave(&pdc_lock, flags);
+ retval = mem_pdc_call(PDC_PAT_MEM, PDC_PAT_MEM_PD_READ,
+ __pa(&pdc_result), __pa(pdt_entries_ptr),
+ count, offset);
+
+ if (retval == PDC_OK) {
+ entries = min(pdc_result[0], count);
+ pret->actual_count_bytes = entries;
+ pret->pdt_entries = entries / sizeof(unsigned long);
+ }
+
+ spin_unlock_irqrestore(&pdc_lock, flags);
+
+ return retval;
+}
+
+/**
+ * pdc_pat_mem_get_dimm_phys_location - Get physical DIMM slot via PAT firmware
+ * @pret: ptr to hold returned information
+ * @phys_addr: physical address to examine
+ *
+ */
+int pdc_pat_mem_get_dimm_phys_location(
+ struct pdc_pat_mem_phys_mem_location *pret,
+ unsigned long phys_addr)
+{
+ int retval;
+ unsigned long flags;
+
+ spin_lock_irqsave(&pdc_lock, flags);
+ retval = mem_pdc_call(PDC_PAT_MEM, PDC_PAT_MEM_ADDRESS,
+ __pa(&pdc_result), phys_addr);
+
+ if (retval == PDC_OK)
+ memcpy(pret, &pdc_result, sizeof(*pret));
+
+ spin_unlock_irqrestore(&pdc_lock, flags);
+
+ return retval;
+}
#endif /* CONFIG_64BIT */
+#endif /* defined(BOOTLOADER) */
/***************** 32-bit real-mode calls ***********/
@@ -1493,4 +1698,3 @@ long real64_call(unsigned long fn, ...)
}
#endif /* CONFIG_64BIT */
-
diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
index 0fbd0a0e1cda..e3a8e5e4d5de 100644
--- a/arch/parisc/kernel/hpmc.S
+++ b/arch/parisc/kernel/hpmc.S
@@ -44,6 +44,7 @@
#include <asm/assembly.h>
#include <asm/pdc.h>
+#include <asm/psw.h>
#include <linux/linkage.h>
#include <linux/init.h>
@@ -135,7 +136,7 @@ ENTRY_CFI(os_hpmc)
* So turn on the Q bit and turn off the M bit.
*/
- ldo 8(%r0),%r4 /* PSW Q on, PSW M off */
+ ldi PSW_SM_Q,%r4 /* PSW Q on, PSW M off */
mtctl %r4,ipsw
mtctl %r0,pcsq
mtctl %r0,pcsq
@@ -257,7 +258,7 @@ os_hpmc_5:
tovirt_r1 %r30 /* make sp virtual */
- rsm 8,%r0 /* Clear Q bit */
+ rsm PSW_SM_Q,%r0 /* Clear Q bit */
ldi 1,%r8 /* Set trap code to "1" for HPMC */
load32 PA(intr_save),%r1
be 0(%sr7,%r1)
diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c
index c9789d9c73b4..b0fe19ac4d78 100644
--- a/arch/parisc/kernel/inventory.c
+++ b/arch/parisc/kernel/inventory.c
@@ -40,6 +40,11 @@
int pdc_type __read_mostly = PDC_TYPE_ILLEGAL;
+/* cell number and location (PAT firmware only) */
+unsigned long parisc_cell_num __read_mostly;
+unsigned long parisc_cell_loc __read_mostly;
+
+
void __init setup_pdc(void)
{
long status;
@@ -78,6 +83,10 @@ void __init setup_pdc(void)
if (status == PDC_OK) {
pdc_type = PDC_TYPE_PAT;
pr_cont("64 bit PAT.\n");
+ parisc_cell_num = cell_info.cell_num;
+ parisc_cell_loc = cell_info.cell_loc;
+ pr_info("PAT: Running on cell %lu and location %lu.\n",
+ parisc_cell_num, parisc_cell_loc);
return;
}
#endif
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index ba5e1c7b1f17..0ca254085a66 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -380,7 +380,7 @@ static inline int eirr_to_irq(unsigned long eirr)
/*
* IRQ STACK - used for irq handler
*/
-#define IRQ_STACK_SIZE (4096 << 2) /* 16k irq stack size */
+#define IRQ_STACK_SIZE (4096 << 3) /* 32k irq stack size */
union irq_stack_union {
unsigned long stack[IRQ_STACK_SIZE/sizeof(unsigned long)];
@@ -413,6 +413,10 @@ static inline void stack_overflow_check(struct pt_regs *regs)
if (regs->sr[7])
return;
+ /* exit if already in panic */
+ if (sysctl_panic_on_stackoverflow < 0)
+ return;
+
/* calculate kernel stack usage */
stack_usage = sp - stack_start;
#ifdef CONFIG_IRQSTACKS
@@ -454,8 +458,10 @@ check_kernel_stack:
#ifdef CONFIG_IRQSTACKS
panic_check:
#endif
- if (sysctl_panic_on_stackoverflow)
+ if (sysctl_panic_on_stackoverflow) {
+ sysctl_panic_on_stackoverflow = -1; /* disable further checks */
panic("low stack detected by irq handler - check messages\n");
+ }
#endif
}
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index c6d6272a934f..7baa2265d439 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -35,12 +35,12 @@ EXPORT_SYMBOL(memset);
EXPORT_SYMBOL(__xchg8);
EXPORT_SYMBOL(__xchg32);
EXPORT_SYMBOL(__cmpxchg_u32);
+EXPORT_SYMBOL(__cmpxchg_u64);
#ifdef CONFIG_SMP
EXPORT_SYMBOL(__atomic_hash);
#endif
#ifdef CONFIG_64BIT
EXPORT_SYMBOL(__xchg64);
-EXPORT_SYMBOL(__cmpxchg_u64);
#endif
#include <linux/uaccess.h>
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 5f0067a62738..bd4c0a7471d3 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -41,7 +41,7 @@ static unsigned long pcxl_used_bytes __read_mostly = 0;
static unsigned long pcxl_used_pages __read_mostly = 0;
extern unsigned long pcxl_dma_start; /* Start of pcxl dma mapping area */
-static spinlock_t pcxl_res_lock;
+static DEFINE_SPINLOCK(pcxl_res_lock);
static char *pcxl_res_map;
static int pcxl_res_hint;
static int pcxl_res_size;
@@ -390,7 +390,6 @@ pcxl_dma_init(void)
if (pcxl_dma_start == 0)
return 0;
- spin_lock_init(&pcxl_res_lock);
pcxl_res_size = PCXL_DMA_MAP_SIZE >> (PAGE_SHIFT + 3);
pcxl_res_hint = 0;
pcxl_res_map = (char *)__get_free_pages(GFP_KERNEL,
diff --git a/arch/parisc/kernel/pdt.c b/arch/parisc/kernel/pdt.c
new file mode 100644
index 000000000000..00aed082969b
--- /dev/null
+++ b/arch/parisc/kernel/pdt.c
@@ -0,0 +1,361 @@
+/*
+ * Page Deallocation Table (PDT) support
+ *
+ * The Page Deallocation Table (PDT) is maintained by firmware and holds a
+ * list of memory addresses in which memory errors were detected.
+ * The list contains both single-bit (correctable) and double-bit
+ * (uncorrectable) errors.
+ *
+ * Copyright 2017 by Helge Deller <deller@gmx.de>
+ *
+ * possible future enhancements:
+ * - add userspace interface via procfs or sysfs to clear PDT
+ */
+
+#include <linux/memblock.h>
+#include <linux/seq_file.h>
+#include <linux/kthread.h>
+#include <linux/initrd.h>
+
+#include <asm/pdc.h>
+#include <asm/pdcpat.h>
+#include <asm/sections.h>
+#include <asm/pgtable.h>
+
+enum pdt_access_type {
+ PDT_NONE,
+ PDT_PDC,
+ PDT_PAT_NEW,
+ PDT_PAT_CELL
+};
+
+static enum pdt_access_type pdt_type;
+
+/* PDT poll interval: 1 minute if errors, 5 minutes if everything OK. */
+#define PDT_POLL_INTERVAL_DEFAULT (5*60*HZ)
+#define PDT_POLL_INTERVAL_SHORT (1*60*HZ)
+static unsigned long pdt_poll_interval = PDT_POLL_INTERVAL_DEFAULT;
+
+/* global PDT status information */
+static struct pdc_mem_retinfo pdt_status;
+
+#define MAX_PDT_TABLE_SIZE PAGE_SIZE
+#define MAX_PDT_ENTRIES (MAX_PDT_TABLE_SIZE / sizeof(unsigned long))
+static unsigned long pdt_entry[MAX_PDT_ENTRIES] __page_aligned_bss;
+
+/*
+ * Constants for the pdt_entry format:
+ * A pdt_entry holds the physical address in bits 0-57, bits 58-61 are
+ * reserved, bit 62 is the perm bit and bit 63 is the error_type bit.
+ * The perm bit indicates whether the error have been verified as a permanent
+ * error (value of 1) or has not been verified, and may be transient (value
+ * of 0). The error_type bit indicates whether the error is a single bit error
+ * (value of 1) or a multiple bit error.
+ * On non-PAT machines phys_addr is encoded in bits 0-59 and error_type in bit
+ * 63. Those machines don't provide the perm bit.
+ */
+
+#define PDT_ADDR_PHYS_MASK (pdt_type != PDT_PDC ? ~0x3f : ~0x0f)
+#define PDT_ADDR_PERM_ERR (pdt_type != PDT_PDC ? 2UL : 0UL)
+#define PDT_ADDR_SINGLE_ERR 1UL
+
+/* report PDT entries via /proc/meminfo */
+void arch_report_meminfo(struct seq_file *m)
+{
+ if (pdt_type == PDT_NONE)
+ return;
+
+ seq_printf(m, "PDT_max_entries: %7lu\n",
+ pdt_status.pdt_size);
+ seq_printf(m, "PDT_cur_entries: %7lu\n",
+ pdt_status.pdt_entries);
+}
+
+static int get_info_pat_new(void)
+{
+ struct pdc_pat_mem_retinfo pat_rinfo;
+ int ret;
+
+ /* newer PAT machines like C8000 report info for all cells */
+ if (is_pdc_pat())
+ ret = pdc_pat_mem_pdt_info(&pat_rinfo);
+ else
+ return PDC_BAD_PROC;
+
+ pdt_status.pdt_size = pat_rinfo.max_pdt_entries;
+ pdt_status.pdt_entries = pat_rinfo.current_pdt_entries;
+ pdt_status.pdt_status = 0;
+ pdt_status.first_dbe_loc = pat_rinfo.first_dbe_loc;
+ pdt_status.good_mem = pat_rinfo.good_mem;
+
+ return ret;
+}
+
+static int get_info_pat_cell(void)
+{
+ struct pdc_pat_mem_cell_pdt_retinfo cell_rinfo;
+ int ret;
+
+ /* older PAT machines like rp5470 report cell info only */
+ if (is_pdc_pat())
+ ret = pdc_pat_mem_pdt_cell_info(&cell_rinfo, parisc_cell_num);
+ else
+ return PDC_BAD_PROC;
+
+ pdt_status.pdt_size = cell_rinfo.max_pdt_entries;
+ pdt_status.pdt_entries = cell_rinfo.current_pdt_entries;
+ pdt_status.pdt_status = 0;
+ pdt_status.first_dbe_loc = cell_rinfo.first_dbe_loc;
+ pdt_status.good_mem = cell_rinfo.good_mem;
+
+ return ret;
+}
+
+static void report_mem_err(unsigned long pde)
+{
+ struct pdc_pat_mem_phys_mem_location loc;
+ unsigned long addr;
+ char dimm_txt[32];
+
+ addr = pde & PDT_ADDR_PHYS_MASK;
+
+ /* show DIMM slot description on PAT machines */
+ if (is_pdc_pat()) {
+ pdc_pat_mem_get_dimm_phys_location(&loc, addr);
+ sprintf(dimm_txt, "DIMM slot %02x, ", loc.dimm_slot);
+ } else
+ dimm_txt[0] = 0;
+
+ pr_warn("PDT: BAD MEMORY at 0x%08lx, %s%s%s-bit error.\n",
+ addr, dimm_txt,
+ pde & PDT_ADDR_PERM_ERR ? "permanent ":"",
+ pde & PDT_ADDR_SINGLE_ERR ? "single":"multi");
+}
+
+
+/*
+ * pdc_pdt_init()
+ *
+ * Initialize kernel PDT structures, read initial PDT table from firmware,
+ * report all current PDT entries and mark bad memory with memblock_reserve()
+ * to avoid that the kernel will use broken memory areas.
+ *
+ */
+void __init pdc_pdt_init(void)
+{
+ int ret, i;
+ unsigned long entries;
+ struct pdc_mem_read_pdt pdt_read_ret;
+
+ pdt_type = PDT_PAT_NEW;
+ ret = get_info_pat_new();
+
+ if (ret != PDC_OK) {
+ pdt_type = PDT_PAT_CELL;
+ ret = get_info_pat_cell();
+ }
+
+ if (ret != PDC_OK) {
+ pdt_type = PDT_PDC;
+ /* non-PAT machines provide the standard PDC call */
+ ret = pdc_mem_pdt_info(&pdt_status);
+ }
+
+ if (ret != PDC_OK) {
+ pdt_type = PDT_NONE;
+ pr_info("PDT: Firmware does not provide any page deallocation"
+ " information.\n");
+ return;
+ }
+
+ entries = pdt_status.pdt_entries;
+ if (WARN_ON(entries > MAX_PDT_ENTRIES))
+ entries = pdt_status.pdt_entries = MAX_PDT_ENTRIES;
+
+ pr_info("PDT: type %s, size %lu, entries %lu, status %lu, dbe_loc 0x%lx,"
+ " good_mem %lu MB\n",
+ pdt_type == PDT_PDC ? __stringify(PDT_PDC) :
+ pdt_type == PDT_PAT_CELL ? __stringify(PDT_PAT_CELL)
+ : __stringify(PDT_PAT_NEW),
+ pdt_status.pdt_size, pdt_status.pdt_entries,
+ pdt_status.pdt_status, pdt_status.first_dbe_loc,
+ pdt_status.good_mem / 1024 / 1024);
+
+ if (entries == 0) {
+ pr_info("PDT: Firmware reports all memory OK.\n");
+ return;
+ }
+
+ if (pdt_status.first_dbe_loc &&
+ pdt_status.first_dbe_loc <= __pa((unsigned long)&_end))
+ pr_crit("CRITICAL: Bad memory inside kernel image memory area!\n");
+
+ pr_warn("PDT: Firmware reports %lu entries of faulty memory:\n",
+ entries);
+
+ if (pdt_type == PDT_PDC)
+ ret = pdc_mem_pdt_read_entries(&pdt_read_ret, pdt_entry);
+ else {
+#ifdef CONFIG_64BIT
+ struct pdc_pat_mem_read_pd_retinfo pat_pret;
+
+ if (pdt_type == PDT_PAT_CELL)
+ ret = pdc_pat_mem_read_cell_pdt(&pat_pret, pdt_entry,
+ MAX_PDT_ENTRIES);
+ else
+ ret = pdc_pat_mem_read_pd_pdt(&pat_pret, pdt_entry,
+ MAX_PDT_TABLE_SIZE, 0);
+#else
+ ret = PDC_BAD_PROC;
+#endif
+ }
+
+ if (ret != PDC_OK) {
+ pdt_type = PDT_NONE;
+ pr_warn("PDT: Get PDT entries failed with %d\n", ret);
+ return;
+ }
+
+ for (i = 0; i < pdt_status.pdt_entries; i++) {
+ unsigned long addr;
+
+ report_mem_err(pdt_entry[i]);
+
+ addr = pdt_entry[i] & PDT_ADDR_PHYS_MASK;
+ if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) &&
+ addr >= initrd_start && addr < initrd_end)
+ pr_crit("CRITICAL: initrd possibly broken "
+ "due to bad memory!\n");
+
+ /* mark memory page bad */
+ memblock_reserve(pdt_entry[i] & PAGE_MASK, PAGE_SIZE);
+ }
+}
+
+
+/*
+ * This is the PDT kernel thread main loop.
+ */
+
+static int pdt_mainloop(void *unused)
+{
+ struct pdc_mem_read_pdt pdt_read_ret;
+ struct pdc_pat_mem_read_pd_retinfo pat_pret __maybe_unused;
+ unsigned long old_num_entries;
+ unsigned long *bad_mem_ptr;
+ int num, ret;
+
+ for (;;) {
+ set_current_state(TASK_INTERRUPTIBLE);
+
+ old_num_entries = pdt_status.pdt_entries;
+
+ schedule_timeout(pdt_poll_interval);
+ if (kthread_should_stop())
+ break;
+
+ /* Do we have new PDT entries? */
+ switch (pdt_type) {
+ case PDT_PAT_NEW:
+ ret = get_info_pat_new();
+ break;
+ case PDT_PAT_CELL:
+ ret = get_info_pat_cell();
+ break;
+ default:
+ ret = pdc_mem_pdt_info(&pdt_status);
+ break;
+ }
+
+ if (ret != PDC_OK) {
+ pr_warn("PDT: unexpected failure %d\n", ret);
+ return -EINVAL;
+ }
+
+ /* if no new PDT entries, just wait again */
+ num = pdt_status.pdt_entries - old_num_entries;
+ if (num <= 0)
+ continue;
+
+ /* decrease poll interval in case we found memory errors */
+ if (pdt_status.pdt_entries &&
+ pdt_poll_interval == PDT_POLL_INTERVAL_DEFAULT)
+ pdt_poll_interval = PDT_POLL_INTERVAL_SHORT;
+
+ /* limit entries to get */
+ if (num > MAX_PDT_ENTRIES) {
+ num = MAX_PDT_ENTRIES;
+ pdt_status.pdt_entries = old_num_entries + num;
+ }
+
+ /* get new entries */
+ switch (pdt_type) {
+#ifdef CONFIG_64BIT
+ case PDT_PAT_CELL:
+ if (pdt_status.pdt_entries > MAX_PDT_ENTRIES) {
+ pr_crit("PDT: too many entries.\n");
+ return -ENOMEM;
+ }
+ ret = pdc_pat_mem_read_cell_pdt(&pat_pret, pdt_entry,
+ MAX_PDT_ENTRIES);
+ bad_mem_ptr = &pdt_entry[old_num_entries];
+ break;
+ case PDT_PAT_NEW:
+ ret = pdc_pat_mem_read_pd_pdt(&pat_pret,
+ pdt_entry,
+ num * sizeof(unsigned long),
+ old_num_entries * sizeof(unsigned long));
+ bad_mem_ptr = &pdt_entry[0];
+ break;
+#endif
+ default:
+ ret = pdc_mem_pdt_read_entries(&pdt_read_ret,
+ pdt_entry);
+ bad_mem_ptr = &pdt_entry[old_num_entries];
+ break;
+ }
+
+ /* report and mark memory broken */
+ while (num--) {
+ unsigned long pde = *bad_mem_ptr++;
+
+ report_mem_err(pde);
+
+#ifdef CONFIG_MEMORY_FAILURE
+ if ((pde & PDT_ADDR_PERM_ERR) ||
+ ((pde & PDT_ADDR_SINGLE_ERR) == 0))
+ memory_failure(pde >> PAGE_SHIFT, 0, 0);
+ else
+ soft_offline_page(
+ pfn_to_page(pde >> PAGE_SHIFT), 0);
+#else
+ pr_crit("PDT: memory error at 0x%lx ignored.\n"
+ "Rebuild kernel with CONFIG_MEMORY_FAILURE=y "
+ "for real handling.\n",
+ pde & PDT_ADDR_PHYS_MASK);
+#endif
+
+ }
+ }
+
+ return 0;
+}
+
+
+static int __init pdt_initcall(void)
+{
+ struct task_struct *kpdtd_task;
+
+ if (pdt_type == PDT_NONE)
+ return -ENODEV;
+
+ kpdtd_task = kthread_create(pdt_mainloop, NULL, "kpdtd");
+ if (IS_ERR(kpdtd_task))
+ return PTR_ERR(kpdtd_task);
+
+ wake_up_process(kpdtd_task);
+
+ return 0;
+}
+
+late_initcall(pdt_initcall);
diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index 6017a5af2e6e..0813359049ae 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -69,7 +69,7 @@ struct rdr_tbl_ent {
static int perf_processor_interface __read_mostly = UNKNOWN_INTF;
static int perf_enabled __read_mostly;
-static spinlock_t perf_lock;
+static DEFINE_SPINLOCK(perf_lock);
struct parisc_device *cpu_device __read_mostly;
/* RDRs to write for PCX-W */
@@ -533,8 +533,6 @@ static int __init perf_init(void)
/* Patch the images to match the system */
perf_patch_images();
- spin_lock_init(&perf_lock);
-
/* TODO: this only lets us access the first cpu.. what to do for SMP? */
cpu_device = per_cpu(cpu_data, 0).dev;
printk("Performance monitoring counters enabled for %s\n",
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index b64d7d21646e..30f92391a93e 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -53,6 +53,7 @@
#include <linux/uaccess.h>
#include <linux/rcupdate.h>
#include <linux/random.h>
+#include <linux/nmi.h>
#include <asm/io.h>
#include <asm/asm-offsets.h>
@@ -145,6 +146,7 @@ void machine_power_off(void)
/* prevent soft lockup/stalled CPU messages for endless loop. */
rcu_sysrq_start();
+ lockup_detector_soft_poweroff();
for (;;);
}
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 85de47f4eb59..e120d63c1b28 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -30,6 +30,7 @@
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/seq_file.h>
+#include <linux/random.h>
#include <linux/slab.h>
#include <linux/cpu.h>
#include <asm/param.h>
@@ -89,12 +90,12 @@ init_percpu_prof(unsigned long cpunum)
* (return 1). If so, initialize the chip and tell other partners in crime
* they have work to do.
*/
-static int processor_probe(struct parisc_device *dev)
+static int __init processor_probe(struct parisc_device *dev)
{
unsigned long txn_addr;
unsigned long cpuid;
struct cpuinfo_parisc *p;
- struct pdc_pat_cpu_num cpu_info __maybe_unused;
+ struct pdc_pat_cpu_num cpu_info = { };
#ifdef CONFIG_SMP
if (num_online_cpus() >= nr_cpu_ids) {
@@ -113,6 +114,7 @@ static int processor_probe(struct parisc_device *dev)
*/
cpuid = boot_cpu_data.cpu_count;
txn_addr = dev->hpa.start; /* for legacy PDC */
+ cpu_info.cpu_num = cpu_info.cpu_loc = cpuid;
#ifdef CONFIG_64BIT
if (is_pdc_pat()) {
@@ -180,6 +182,8 @@ static int processor_probe(struct parisc_device *dev)
p->hpa = dev->hpa.start; /* save CPU hpa */
p->cpuid = cpuid; /* save CPU id */
p->txn_addr = txn_addr; /* save CPU IRQ address */
+ p->cpu_num = cpu_info.cpu_num;
+ p->cpu_loc = cpu_info.cpu_loc;
#ifdef CONFIG_SMP
/*
** FIXME: review if any other initialization is clobbered
@@ -234,28 +238,45 @@ static int processor_probe(struct parisc_device *dev)
*/
void __init collect_boot_cpu_data(void)
{
+ unsigned long cr16_seed;
+
memset(&boot_cpu_data, 0, sizeof(boot_cpu_data));
+ cr16_seed = get_cycles();
+ add_device_randomness(&cr16_seed, sizeof(cr16_seed));
+
boot_cpu_data.cpu_hz = 100 * PAGE0->mem_10msec; /* Hz of this PARISC */
/* get CPU-Model Information... */
#define p ((unsigned long *)&boot_cpu_data.pdc.model)
- if (pdc_model_info(&boot_cpu_data.pdc.model) == PDC_OK)
+ if (pdc_model_info(&boot_cpu_data.pdc.model) == PDC_OK) {
printk(KERN_INFO
"model %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8]);
+
+ add_device_randomness(&boot_cpu_data.pdc.model,
+ sizeof(boot_cpu_data.pdc.model));
+ }
#undef p
- if (pdc_model_versions(&boot_cpu_data.pdc.versions, 0) == PDC_OK)
+ if (pdc_model_versions(&boot_cpu_data.pdc.versions, 0) == PDC_OK) {
printk(KERN_INFO "vers %08lx\n",
boot_cpu_data.pdc.versions);
- if (pdc_model_cpuid(&boot_cpu_data.pdc.cpuid) == PDC_OK)
+ add_device_randomness(&boot_cpu_data.pdc.versions,
+ sizeof(boot_cpu_data.pdc.versions));
+ }
+
+ if (pdc_model_cpuid(&boot_cpu_data.pdc.cpuid) == PDC_OK) {
printk(KERN_INFO "CPUID vers %ld rev %ld (0x%08lx)\n",
(boot_cpu_data.pdc.cpuid >> 5) & 127,
boot_cpu_data.pdc.cpuid & 31,
boot_cpu_data.pdc.cpuid);
+ add_device_randomness(&boot_cpu_data.pdc.cpuid,
+ sizeof(boot_cpu_data.pdc.cpuid));
+ }
+
if (pdc_model_capabilities(&boot_cpu_data.pdc.capabilities) == PDC_OK)
printk(KERN_INFO "capabilities 0x%lx\n",
boot_cpu_data.pdc.capabilities);
@@ -296,7 +317,7 @@ void __init collect_boot_cpu_data(void)
*
* o Enable CPU profiling hooks.
*/
-int init_per_cpu(int cpunum)
+int __init init_per_cpu(int cpunum)
{
int ret;
struct pdc_coproc_cfg coproc_cfg;
@@ -411,12 +432,12 @@ show_cpuinfo (struct seq_file *m, void *v)
return 0;
}
-static const struct parisc_device_id processor_tbl[] = {
+static const struct parisc_device_id processor_tbl[] __initconst = {
{ HPHW_NPROC, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, SVERSION_ANY_ID },
{ 0, }
};
-static struct parisc_driver cpu_driver = {
+static struct parisc_driver cpu_driver __refdata = {
.name = "CPU",
.id_table = processor_tbl,
.probe = processor_probe
diff --git a/arch/parisc/kernel/real2.S b/arch/parisc/kernel/real2.S
index 1db58e546230..cc9963421a19 100644
--- a/arch/parisc/kernel/real2.S
+++ b/arch/parisc/kernel/real2.S
@@ -162,6 +162,7 @@ ENDPROC_CFI(restore_control_regs)
.text
.align 128
ENTRY_CFI(rfi_virt2real)
+#if !defined(BOOTLOADER)
/* switch to real mode... */
rsm PSW_SM_I,%r0
load32 PA(rfi_v2r_1), %r1
@@ -191,6 +192,7 @@ ENTRY_CFI(rfi_virt2real)
nop
rfi_v2r_1:
tophys_r1 %r2
+#endif /* defined(BOOTLOADER) */
bv 0(%r2)
nop
ENDPROC_CFI(rfi_virt2real)
@@ -198,6 +200,7 @@ ENDPROC_CFI(rfi_virt2real)
.text
.align 128
ENTRY_CFI(rfi_real2virt)
+#if !defined(BOOTLOADER)
rsm PSW_SM_I,%r0
load32 (rfi_r2v_1), %r1
nop
@@ -226,6 +229,7 @@ ENTRY_CFI(rfi_real2virt)
nop
rfi_r2v_1:
tovirt_r1 %r2
+#endif /* defined(BOOTLOADER) */
bv 0(%r2)
nop
ENDPROC_CFI(rfi_real2virt)
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index dee6f9d6a153..f7d0c3b33d70 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -38,6 +38,7 @@
#include <linux/export.h>
#include <linux/sched.h>
#include <linux/sched/clock.h>
+#include <linux/start_kernel.h>
#include <asm/processor.h>
#include <asm/sections.h>
@@ -48,6 +49,7 @@
#include <asm/io.h>
#include <asm/setup.h>
#include <asm/unwind.h>
+#include <asm/smp.h>
static char __initdata command_line[COMMAND_LINE_SIZE];
@@ -115,7 +117,6 @@ void __init dma_ops_init(void)
}
#endif
-extern int init_per_cpu(int cpuid);
extern void collect_boot_cpu_data(void);
void __init setup_arch(char **cmdline_p)
@@ -398,9 +399,8 @@ static int __init parisc_init(void)
}
arch_initcall(parisc_init);
-void start_parisc(void)
+void __init start_parisc(void)
{
- extern void start_kernel(void);
extern void early_trap_init(void);
int ret, cpunum;
diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index 70aaabb8b3cb..9e0cb6a577d6 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -290,25 +290,25 @@ copy_siginfo_from_user32 (siginfo_t *to, compat_siginfo_t __user *from)
if (to->si_code < 0)
err |= __copy_from_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE);
else {
- switch (to->si_code >> 16) {
- case __SI_CHLD >> 16:
+ switch (siginfo_layout(to->si_signo, to->si_code)) {
+ case SIL_CHLD:
err |= __get_user(to->si_utime, &from->si_utime);
err |= __get_user(to->si_stime, &from->si_stime);
err |= __get_user(to->si_status, &from->si_status);
default:
+ case SIL_KILL:
err |= __get_user(to->si_pid, &from->si_pid);
err |= __get_user(to->si_uid, &from->si_uid);
break;
- case __SI_FAULT >> 16:
+ case SIL_FAULT:
err |= __get_user(addr, &from->si_addr);
to->si_addr = compat_ptr(addr);
break;
- case __SI_POLL >> 16:
+ case SIL_POLL:
err |= __get_user(to->si_band, &from->si_band);
err |= __get_user(to->si_fd, &from->si_fd);
break;
- case __SI_RT >> 16: /* This is not generated by the kernel as of now. */
- case __SI_MESGQ >> 16:
+ case SIL_RT:
err |= __get_user(to->si_pid, &from->si_pid);
err |= __get_user(to->si_uid, &from->si_uid);
err |= __get_user(to->si_int, &from->si_int);
@@ -337,41 +337,40 @@ copy_siginfo_to_user32 (compat_siginfo_t __user *to, const siginfo_t *from)
at the same time. */
err = __put_user(from->si_signo, &to->si_signo);
err |= __put_user(from->si_errno, &to->si_errno);
- err |= __put_user((short)from->si_code, &to->si_code);
+ err |= __put_user(from->si_code, &to->si_code);
if (from->si_code < 0)
err |= __copy_to_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE);
else {
- switch (from->si_code >> 16) {
- case __SI_CHLD >> 16:
+ switch (siginfo_layout(from->si_signo, from->si_code)) {
+ case SIL_CHLD:
err |= __put_user(from->si_utime, &to->si_utime);
err |= __put_user(from->si_stime, &to->si_stime);
err |= __put_user(from->si_status, &to->si_status);
- default:
+ case SIL_KILL:
err |= __put_user(from->si_pid, &to->si_pid);
err |= __put_user(from->si_uid, &to->si_uid);
break;
- case __SI_FAULT >> 16:
+ case SIL_FAULT:
addr = ptr_to_compat(from->si_addr);
err |= __put_user(addr, &to->si_addr);
break;
- case __SI_POLL >> 16:
+ case SIL_POLL:
err |= __put_user(from->si_band, &to->si_band);
err |= __put_user(from->si_fd, &to->si_fd);
break;
- case __SI_TIMER >> 16:
+ case SIL_TIMER:
err |= __put_user(from->si_tid, &to->si_tid);
err |= __put_user(from->si_overrun, &to->si_overrun);
val = (compat_int_t)from->si_int;
err |= __put_user(val, &to->si_int);
break;
- case __SI_RT >> 16: /* Not generated by the kernel as of now. */
- case __SI_MESGQ >> 16:
+ case SIL_RT:
err |= __put_user(from->si_uid, &to->si_uid);
err |= __put_user(from->si_pid, &to->si_pid);
val = (compat_int_t)from->si_int;
err |= __put_user(val, &to->si_int);
break;
- case __SI_SYS >> 16:
+ case SIL_SYS:
err |= __put_user(ptr_to_compat(from->si_call_addr), &to->si_call_addr);
err |= __put_user(from->si_syscall, &to->si_syscall);
err |= __put_user(from->si_arch, &to->si_arch);
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 63365106ea19..30c28ab14540 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -255,12 +255,11 @@ void arch_send_call_function_single_ipi(int cpu)
static void __init
smp_cpu_init(int cpunum)
{
- extern int init_per_cpu(int); /* arch/parisc/kernel/processor.c */
extern void init_IRQ(void); /* arch/parisc/kernel/irq.c */
extern void start_cpu_itimer(void); /* arch/parisc/kernel/time.c */
/* Set modes and Enable floating point coprocessor */
- (void) init_per_cpu(cpunum);
+ init_per_cpu(cpunum);
disable_sr_hashing();
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 23de307c3052..41e60a9c7db2 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -742,7 +742,7 @@ lws_compare_and_swap_2:
10: ldd 0(%r25), %r25
11: ldd 0(%r24), %r24
#else
- /* Load new value into r22/r23 - high/low */
+ /* Load old value into r22/r23 - high/low */
10: ldw 0(%r25), %r22
11: ldw 4(%r25), %r23
/* Load new value into fr4 for atomic store later */
@@ -834,11 +834,11 @@ cas2_action:
copy %r0, %r28
#else
/* Compare first word */
-19: ldw,ma 0(%r26), %r29
+19: ldw 0(%r26), %r29
sub,= %r29, %r22, %r0
b,n cas2_end
/* Compare second word */
-20: ldw,ma 4(%r26), %r29
+20: ldw 4(%r26), %r29
sub,= %r29, %r23, %r0
b,n cas2_end
/* Perform the store */
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 44aeaa9c039f..6308749359e4 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -361,7 +361,7 @@
ENTRY_SAME(ni_syscall) /* 263: reserved for vserver */
ENTRY_SAME(add_key)
ENTRY_SAME(request_key) /* 265 */
- ENTRY_SAME(keyctl)
+ ENTRY_COMP(keyctl)
ENTRY_SAME(ioprio_set)
ENTRY_SAME(ioprio_get)
ENTRY_SAME(inotify_init)
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 89421df70160..8c0105a49839 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -243,14 +243,33 @@ void __init time_init(void)
static int __init init_cr16_clocksource(void)
{
/*
- * The cr16 interval timers are not syncronized across CPUs, so mark
- * them unstable and lower rating on SMP systems.
+ * The cr16 interval timers are not syncronized across CPUs on
+ * different sockets, so mark them unstable and lower rating on
+ * multi-socket SMP systems.
*/
if (num_online_cpus() > 1) {
- clocksource_cr16.flags = CLOCK_SOURCE_UNSTABLE;
- clocksource_cr16.rating = 0;
+ int cpu;
+ unsigned long cpu0_loc;
+ cpu0_loc = per_cpu(cpu_data, 0).cpu_loc;
+
+ for_each_online_cpu(cpu) {
+ if (cpu == 0)
+ continue;
+ if ((cpu0_loc != 0) &&
+ (cpu0_loc == per_cpu(cpu_data, cpu).cpu_loc))
+ continue;
+
+ clocksource_cr16.name = "cr16_unstable";
+ clocksource_cr16.flags = CLOCK_SOURCE_UNSTABLE;
+ clocksource_cr16.rating = 0;
+ break;
+ }
}
+ /* XXX: We may want to mark sched_clock stable here if cr16 clocks are
+ * in sync:
+ * (clocksource_cr16.flags == CLOCK_SOURCE_IS_CONTINUOUS) */
+
/* register at clocksource framework */
clocksource_register_hz(&clocksource_cr16,
100 * PAGE0->mem_10msec);
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 991654c88eec..230333157fe3 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -817,7 +817,7 @@ void __init initialize_ivt(const void *iva)
u32 check = 0;
u32 *ivap;
u32 *hpmcp;
- u32 length;
+ u32 length, instr;
if (strcmp((const char *)iva, "cows can fly"))
panic("IVT invalid");
@@ -827,6 +827,14 @@ void __init initialize_ivt(const void *iva)
for (i = 0; i < 8; i++)
*ivap++ = 0;
+ /*
+ * Use PDC_INSTR firmware function to get instruction that invokes
+ * PDCE_CHECK in HPMC handler. See programming note at page 1-31 of
+ * the PA 1.1 Firmware Architecture document.
+ */
+ if (pdc_instr(&instr) == PDC_OK)
+ ivap[0] = instr;
+
/* Compute Checksum for HPMC handler */
length = os_hpmc_size;
ivap[7] = length;
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 1b73690477c5..caab39dfa95d 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -14,6 +14,7 @@
#include <linux/slab.h>
#include <linux/kallsyms.h>
#include <linux/sort.h>
+#include <linux/sched.h>
#include <linux/uaccess.h>
#include <asm/assembly.h>
@@ -34,7 +35,7 @@
extern struct unwind_table_entry __start___unwind[];
extern struct unwind_table_entry __stop___unwind[];
-static spinlock_t unwind_lock;
+static DEFINE_SPINLOCK(unwind_lock);
/*
* the kernel unwind block is not dynamically allocated so that
* we can call unwind_init as early in the bootup process as
@@ -181,8 +182,6 @@ int __init unwind_init(void)
start = (long)&__start___unwind[0];
stop = (long)&__stop___unwind[0];
- spin_lock_init(&unwind_lock);
-
printk("unwind_init: start = 0x%lx, end = 0x%lx, entries = %lu\n",
start, stop,
(stop - start) / sizeof(struct unwind_table_entry));
@@ -281,6 +280,17 @@ static void unwind_frame_regs(struct unwind_frame_info *info)
info->prev_sp = sp - 64;
info->prev_ip = 0;
+
+ /* The stack is at the end inside the thread_union
+ * struct. If we reach data, we have reached the
+ * beginning of the stack and should stop unwinding. */
+ if (info->prev_sp >= (unsigned long) task_thread_info(info->t) &&
+ info->prev_sp < ((unsigned long) task_thread_info(info->t)
+ + THREAD_SZ_ALGN)) {
+ info->prev_sp = 0;
+ break;
+ }
+
if (get_user(tmp, (unsigned long *)(info->prev_sp - RP_OFFSET)))
break;
info->prev_ip = tmp;
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 3d6ef1b29c6a..ffe2cbf52d1a 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -78,6 +78,8 @@ SECTIONS
*(.text.sys_exit)
*(.text.do_sigaltstack)
*(.text.do_fork)
+ *(.text.div)
+ *($$*) /* millicode routines */
*(.text.*)
*(.fixup)
*(.lock.text) /* out-of-line lock text */
diff --git a/arch/parisc/lib/lusercopy.S b/arch/parisc/lib/lusercopy.S
index 85c28bb80fb7..d4fe19806d57 100644
--- a/arch/parisc/lib/lusercopy.S
+++ b/arch/parisc/lib/lusercopy.S
@@ -56,12 +56,6 @@
mtsp %r1,%sr1
.endm
- .macro fixup_branch lbl
- ldil L%\lbl, %r1
- ldo R%\lbl(%r1), %r1
- bv %r0(%r1)
- .endm
-
/*
* unsigned long lclear_user(void *to, unsigned long n)
*
@@ -82,16 +76,16 @@ $lclu_loop:
$lclu_done:
bv %r0(%r2)
copy %r25,%r28
- .exit
-ENDPROC_CFI(lclear_user)
- .section .fixup,"ax"
-2: fixup_branch $lclu_done
- ldo 1(%r25),%r25
- .previous
+2: b $lclu_done
+ ldo 1(%r25),%r25
ASM_EXCEPTIONTABLE_ENTRY(1b,2b)
+ .exit
+ENDPROC_CFI(lclear_user)
+
+
.procend
/*
@@ -122,16 +116,15 @@ $lslen_done:
$lslen_nzero:
b $lslen_done
ldo 1(%r26),%r26 /* special case for N == 0 */
-ENDPROC_CFI(lstrnlen_user)
- .section .fixup,"ax"
-3: fixup_branch $lslen_done
+3: b $lslen_done
copy %r24,%r26 /* reset r26 so 0 is returned on fault */
- .previous
ASM_EXCEPTIONTABLE_ENTRY(1b,3b)
ASM_EXCEPTIONTABLE_ENTRY(2b,3b)
+ENDPROC_CFI(lstrnlen_user)
+
.procend
diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index 99115cd9e790..865a7f796c7f 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -27,8 +27,6 @@
#include <linux/compiler.h>
#include <linux/uaccess.h>
-DECLARE_PER_CPU(struct exception_data, exception_data);
-
#define get_user_space() (uaccess_kernel() ? 0 : mfsp(3))
#define get_kernel_space() (0)
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 32ec22146141..e247edbca68e 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -17,6 +17,7 @@
#include <linux/interrupt.h>
#include <linux/extable.h>
#include <linux/uaccess.h>
+#include <linux/hugetlb.h>
#include <asm/traps.h>
@@ -29,8 +30,6 @@
#define BITSSET 0x1c0 /* for identifying LDCW */
-DEFINE_PER_CPU(struct exception_data, exception_data);
-
int show_unhandled_signals = 1;
/*
@@ -143,13 +142,6 @@ int fixup_exception(struct pt_regs *regs)
fix = search_exception_tables(regs->iaoq[0]);
if (fix) {
- struct exception_data *d;
- d = this_cpu_ptr(&exception_data);
- d->fault_ip = regs->iaoq[0];
- d->fault_gp = regs->gr[27];
- d->fault_space = regs->isr;
- d->fault_addr = regs->ior;
-
/*
* Fix up get_user() and put_user().
* ASM_EXCEPTIONTABLE_ENTRY_EFAULT() sets the least-significant
@@ -163,6 +155,7 @@ int fixup_exception(struct pt_regs *regs)
/* zero target register for get_user() */
if (parisc_acctyp(0, regs->iir) == VM_READ) {
int treg = regs->iir & 0x1f;
+ BUG_ON(treg == 0);
regs->gr[treg] = 0;
}
}
@@ -269,7 +262,7 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
struct task_struct *tsk;
struct mm_struct *mm;
unsigned long acc_type;
- int fault;
+ int fault = 0;
unsigned int flags;
if (faulthandler_disabled())
@@ -323,7 +316,8 @@ good_area:
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
- else if (fault & VM_FAULT_SIGBUS)
+ else if (fault & (VM_FAULT_SIGBUS|VM_FAULT_HWPOISON|
+ VM_FAULT_HWPOISON_LARGE))
goto bad_area;
BUG();
}
@@ -360,14 +354,13 @@ bad_area:
if (user_mode(regs)) {
struct siginfo si;
-
- show_signal_msg(regs, code, address, tsk, vma);
+ unsigned int lsb = 0;
switch (code) {
case 15: /* Data TLB miss fault/Data page fault */
/* send SIGSEGV when outside of vma */
if (!vma ||
- address < vma->vm_start || address > vma->vm_end) {
+ address < vma->vm_start || address >= vma->vm_end) {
si.si_signo = SIGSEGV;
si.si_code = SEGV_MAPERR;
break;
@@ -394,6 +387,30 @@ bad_area:
si.si_code = (code == 26) ? SEGV_ACCERR : SEGV_MAPERR;
break;
}
+
+#ifdef CONFIG_MEMORY_FAILURE
+ if (fault & (VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE)) {
+ printk(KERN_ERR
+ "MCE: Killing %s:%d due to hardware memory corruption fault at %08lx\n",
+ tsk->comm, tsk->pid, address);
+ si.si_signo = SIGBUS;
+ si.si_code = BUS_MCEERR_AR;
+ }
+#endif
+
+ /*
+ * Either small page or large page may be poisoned.
+ * In other words, VM_FAULT_HWPOISON_LARGE and
+ * VM_FAULT_HWPOISON are mutually exclusive.
+ */
+ if (fault & VM_FAULT_HWPOISON_LARGE)
+ lsb = hstate_index_to_shift(VM_FAULT_GET_HINDEX(fault));
+ else if (fault & VM_FAULT_HWPOISON)
+ lsb = PAGE_SHIFT;
+ else
+ show_signal_msg(regs, code, address, tsk, vma);
+ si.si_addr_lsb = lsb;
+
si.si_errno = 0;
si.si_addr = (void __user *) address;
force_sig_info(si.si_signo, &si, current);
diff --git a/arch/parisc/mm/hugetlbpage.c b/arch/parisc/mm/hugetlbpage.c
index aa50ac090e9b..5eb8f633b282 100644
--- a/arch/parisc/mm/hugetlbpage.c
+++ b/arch/parisc/mm/hugetlbpage.c
@@ -69,7 +69,8 @@ pte_t *huge_pte_alloc(struct mm_struct *mm,
return pte;
}
-pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
+pte_t *huge_pte_offset(struct mm_struct *mm,
+ unsigned long addr, unsigned long sz)
{
pgd_t *pgd;
pud_t *pud;
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 66f3a6345105..1ca9a2b4239f 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -381,6 +381,9 @@ static void __init setup_bootmem(void)
request_resource(res, &data_resource);
}
request_resource(&sysram_resources[0], &pdcdata_resource);
+
+ /* Initialize Page Deallocation Table (PDT) and check for bad memory. */
+ pdc_pdt_init();
}
static int __init parisc_text_address(unsigned long vaddr)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index bf4391d18923..809c468edab1 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -82,9 +82,20 @@ config NR_IRQS
config NMI_IPI
bool
- depends on SMP && (DEBUGGER || KEXEC_CORE)
+ depends on SMP && (DEBUGGER || KEXEC_CORE || HARDLOCKUP_DETECTOR)
default y
+config PPC_WATCHDOG
+ bool
+ depends on HARDLOCKUP_DETECTOR
+ depends on HAVE_HARDLOCKUP_DETECTOR_ARCH
+ default y
+ help
+ This is a placeholder when the powerpc hardlockup detector
+ watchdog is selected (arch/powerpc/kernel/watchdog.c). It is
+ seleted via the generic lockup detector menu which is why we
+ have no standalone config option for it here.
+
config STACKTRACE_SUPPORT
bool
default y
@@ -109,14 +120,6 @@ config GENERIC_LOCKBREAK
default y
depends on SMP && PREEMPT
-config ARCH_HAS_ILOG2_U32
- bool
- default y
-
-config ARCH_HAS_ILOG2_U64
- bool
- default y if 64BIT
-
config GENERIC_HWEIGHT
bool
default y
@@ -133,11 +136,13 @@ config PPC
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_DMA_SET_COHERENT_MASK
select ARCH_HAS_ELF_RANDOMIZE
+ select ARCH_HAS_FORTIFY_SOURCE
select ARCH_HAS_GCOV_PROFILE_ALL
select ARCH_HAS_SCALED_CPUTIME if VIRT_CPU_ACCOUNTING_NATIVE
select ARCH_HAS_SG_CHAIN
select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
select ARCH_HAS_UBSAN_SANITIZE_ALL
+ select ARCH_HAS_ZONE_DEVICE if PPC_BOOK3S_64
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
@@ -163,7 +168,7 @@ config PPC
select GENERIC_SMP_IDLE_THREAD
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
- select GENERIC_TIME_VSYSCALL_OLD
+ select GENERIC_TIME_VSYSCALL
select HAVE_ARCH_AUDITSYSCALL
select HAVE_ARCH_JUMP_LABEL
select HAVE_ARCH_KGDB
@@ -171,6 +176,8 @@ config PPC
select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ARCH_TRACEHOOK
+ select ARCH_HAS_STRICT_KERNEL_RWX if ((PPC_BOOK3S_64 || PPC32) && !RELOCATABLE && !HIBERNATION)
+ select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
select HAVE_CBPF_JIT if !PPC64
select HAVE_CONTEXT_TRACKING if PPC64
select HAVE_DEBUG_KMEMLEAK
@@ -184,7 +191,7 @@ config PPC
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER
select HAVE_GCC_PLUGINS
- select HAVE_GENERIC_RCU_GUP
+ select HAVE_GENERIC_GUP
select HAVE_HW_BREAKPOINT if PERF_EVENTS && (PPC_BOOK3S || PPC_8xx)
select HAVE_IDE
select HAVE_IOREMAP_PROT
@@ -197,17 +204,20 @@ config PPC
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
select HAVE_MOD_ARCH_SPECIFIC
- select HAVE_NMI if PERF_EVENTS
+ select HAVE_NMI if PERF_EVENTS || (PPC64 && PPC_BOOK3S)
+ select HAVE_HARDLOCKUP_DETECTOR_ARCH if (PPC64 && PPC_BOOK3S)
select HAVE_OPROFILE
select HAVE_OPTPROBES if PPC64
select HAVE_PERF_EVENTS
select HAVE_PERF_EVENTS_NMI if PPC64
+ select HAVE_HARDLOCKUP_DETECTOR_PERF if PERF_EVENTS && HAVE_PERF_EVENTS_NMI && !HAVE_HARDLOCKUP_DETECTOR_ARCH
select HAVE_PERF_REGS
select HAVE_PERF_USER_STACK_DUMP
select HAVE_RCU_TABLE_FREE if SMP
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_SYSCALL_TRACEPOINTS
select HAVE_VIRT_CPU_ACCOUNTING
+ select HAVE_IRQ_TIME_ACCOUNTING
select IRQ_DOMAIN
select IRQ_FORCED_THREADING
select MODULES_USE_ELF_RELA
@@ -357,10 +367,6 @@ config PPC_ADV_DEBUG_DAC_RANGE
depends on PPC_ADV_DEBUG_REGS && 44x
default y
-config PPC_EMULATE_SSTEP
- bool
- default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT
-
config ZONE_DMA32
bool
default y if PPC64
@@ -395,7 +401,7 @@ config HUGETLB_PAGE_SIZE_VARIABLE
config MATH_EMULATION
bool "Math emulation"
- depends on 4xx || 8xx || PPC_MPC832x || BOOKE
+ depends on 4xx || PPC_8xx || PPC_MPC832x || BOOKE
---help---
Some PowerPC chips designed for embedded applications do not have
a floating-point unit and therefore do not implement the
@@ -438,6 +444,17 @@ config PPC_TRANSACTIONAL_MEM
---help---
Support user-mode Transactional Memory on POWERPC.
+config LD_HEAD_STUB_CATCH
+ bool "Reserve 256 bytes to cope with linker stubs in HEAD text" if EXPERT
+ depends on PPC64
+ default n
+ help
+ Very large kernels can cause linker branch stubs to be generated by
+ code in head_64.S, which moves the head text sections out of their
+ specified location. This option can work around the problem.
+
+ If unsure, say "N".
+
config DISABLE_MPROFILE_KERNEL
bool "Disable use of mprofile-kernel for kernel tracing"
depends on PPC64 && CPU_LITTLE_ENDIAN
@@ -456,14 +473,6 @@ config MPROFILE_KERNEL
depends on PPC64 && CPU_LITTLE_ENDIAN
def_bool !DISABLE_MPROFILE_KERNEL
-config USE_THIN_ARCHIVES
- bool "Build the kernel using thin archives"
- default n
- select THIN_ARCHIVES
- help
- Build the kernel using thin archives.
- If you're unsure say N.
-
config IOMMU_HELPER
def_bool PPC64
@@ -954,9 +963,9 @@ config PPC_PCI_CHOICE
config PCI
bool "PCI support" if PPC_PCI_CHOICE
- default y if !40x && !CPM2 && !8xx && !PPC_83xx \
+ default y if !40x && !CPM2 && !PPC_8xx && !PPC_83xx \
&& !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
- default PCI_QSPAN if !4xx && !CPM2 && 8xx
+ default PCI_QSPAN if PPC_8xx
select GENERIC_PCI_IOMAP
help
Find out whether your system includes a PCI bus. PCI is the name of
@@ -972,7 +981,7 @@ config PCI_SYSCALL
config PCI_QSPAN
bool "QSpan PCI"
- depends on !4xx && !CPM2 && 8xx
+ depends on PPC_8xx
select PPC_I8259
help
Say Y here if you have a system based on a Motorola 8xx-series
@@ -1163,12 +1172,23 @@ config CONSISTENT_SIZE
config PIN_TLB
bool "Pinned Kernel TLBs (860 ONLY)"
- depends on ADVANCED_OPTIONS && 8xx
+ depends on ADVANCED_OPTIONS && PPC_8xx && \
+ !DEBUG_PAGEALLOC && !STRICT_KERNEL_RWX
+
+config PIN_TLB_DATA
+ bool "Pinned TLB for DATA"
+ depends on PIN_TLB
+ default y
config PIN_TLB_IMMR
bool "Pinned TLB for IMMR"
depends on PIN_TLB
default y
+
+config PIN_TLB_TEXT
+ bool "Pinned TLB for TEXT"
+ depends on PIN_TLB
+ default y
endmenu
if PPC64
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 3e0f0e1fadef..1381693a4a51 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -59,6 +59,19 @@ machine-$(CONFIG_PPC64) += 64
machine-$(CONFIG_CPU_LITTLE_ENDIAN) += le
UTS_MACHINE := $(subst $(space),,$(machine-y))
+# XXX This needs to be before we override LD below
+ifdef CONFIG_PPC32
+KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
+else
+ifeq ($(call ld-ifversion, -ge, 225000000, y),y)
+# Have the linker provide sfpr if possible.
+# There is a corresponding test in arch/powerpc/lib/Makefile
+KBUILD_LDFLAGS_MODULE += --save-restore-funcs
+else
+KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
+endif
+endif
+
ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
override LD += -EL
LDEMULATION := lppc
@@ -98,6 +111,7 @@ endif
LDFLAGS_vmlinux-y := -Bstatic
LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) := -pie
LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y)
+LDFLAGS_vmlinux += $(call ld-option,--orphan-handling=warn)
ifeq ($(CONFIG_PPC64),y)
ifeq ($(call cc-option-yn,-mcmodel=medium),y)
@@ -189,8 +203,6 @@ else
CHECKFLAGS += -D__LITTLE_ENDIAN__
endif
-KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
-
ifeq ($(CONFIG_476FPE_ERR46),y)
KBUILD_LDFLAGS_MODULE += --ppc476-workaround \
-T $(srctree)/arch/powerpc/platforms/44x/ppc476_modules.lds
@@ -238,7 +250,7 @@ KBUILD_AFLAGS += $(aflags-y)
KBUILD_CFLAGS += $(cflags-y)
head-y := arch/powerpc/kernel/head_$(BITS).o
-head-$(CONFIG_8xx) := arch/powerpc/kernel/head_8xx.o
+head-$(CONFIG_PPC_8xx) := arch/powerpc/kernel/head_8xx.o
head-$(CONFIG_40x) := arch/powerpc/kernel/head_40x.o
head-$(CONFIG_44x) := arch/powerpc/kernel/head_44x.o
head-$(CONFIG_FSL_BOOKE) := arch/powerpc/kernel/head_fsl_booke.o
@@ -305,6 +317,10 @@ PHONY += ppc64le_defconfig
ppc64le_defconfig:
$(call merge_into_defconfig,ppc64_defconfig,le)
+PHONY += powernv_be_defconfig
+powernv_be_defconfig:
+ $(call merge_into_defconfig,powernv_defconfig,be)
+
PHONY += mpc85xx_defconfig
mpc85xx_defconfig:
$(call merge_into_defconfig,mpc85xx_basic_defconfig,\
diff --git a/arch/powerpc/Makefile.postlink b/arch/powerpc/Makefile.postlink
index eccfcc88afae..5db43ebbe2df 100644
--- a/arch/powerpc/Makefile.postlink
+++ b/arch/powerpc/Makefile.postlink
@@ -10,13 +10,26 @@ __archpost:
-include include/config/auto.conf
include scripts/Kbuild.include
+quiet_cmd_head_check = CHKHEAD $@
+ cmd_head_check = $(CONFIG_SHELL) $(srctree)/arch/powerpc/tools/head_check.sh "$(NM)" "$@"
+
quiet_cmd_relocs_check = CHKREL $@
- cmd_relocs_check = $(CONFIG_SHELL) $(srctree)/arch/powerpc/tools/relocs_check.sh "$(OBJDUMP)" "$@"
+ifdef CONFIG_PPC_BOOK3S_64
+ cmd_relocs_check = \
+ $(CONFIG_SHELL) $(srctree)/arch/powerpc/tools/relocs_check.sh "$(OBJDUMP)" "$@" ; \
+ $(CONFIG_SHELL) $(srctree)/arch/powerpc/tools/unrel_branch_check.sh "$(OBJDUMP)" "$@"
+else
+ cmd_relocs_check = \
+ $(CONFIG_SHELL) $(srctree)/arch/powerpc/tools/relocs_check.sh "$(OBJDUMP)" "$@"
+endif
# `@true` prevents complaint when there is nothing to be done
vmlinux: FORCE
@true
+ifdef CONFIG_PPC64
+ $(call cmd,head_check)
+endif
ifdef CONFIG_RELOCATABLE
$(call if_changed,relocs_check)
endif
@@ -25,7 +38,7 @@ endif
@true
clean:
- @true
+ rm -f .tmp_symbols.txt
PHONY += FORCE clean
diff --git a/arch/powerpc/boot/4xx.c b/arch/powerpc/boot/4xx.c
index 9d3bd4c45a24..f7da65169124 100644
--- a/arch/powerpc/boot/4xx.c
+++ b/arch/powerpc/boot/4xx.c
@@ -564,7 +564,7 @@ void ibm405gp_fixup_clocks(unsigned int sys_clk, unsigned int ser_clk)
fbdv = 16;
cbdv = ((pllmr & 0x00060000) >> 17) + 1; /* CPU:PLB */
opdv = ((pllmr & 0x00018000) >> 15) + 1; /* PLB:OPB */
- ppdv = ((pllmr & 0x00001800) >> 13) + 1; /* PLB:PCI */
+ ppdv = ((pllmr & 0x00006000) >> 13) + 1; /* PLB:PCI */
epdv = ((pllmr & 0x00001800) >> 11) + 2; /* PLB:EBC */
udiv = ((cpc0_cr0 & 0x3e) >> 1) + 1;
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index e82f333cc84a..c4e6fe35c075 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -25,12 +25,20 @@ compress-$(CONFIG_KERNEL_XZ) := CONFIG_KERNEL_XZ
BOOTCFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
-fno-strict-aliasing -Os -msoft-float -pipe \
-fomit-frame-pointer -fno-builtin -fPIC -nostdinc \
- -isystem $(shell $(CROSS32CC) -print-file-name=include) \
-D$(compress-y)
+BOOTCC := $(CC)
ifdef CONFIG_PPC64_BOOT_WRAPPER
BOOTCFLAGS += -m64
+else
+BOOTCFLAGS += -m32
+ifdef CROSS32_COMPILE
+ BOOTCC := $(CROSS32_COMPILE)gcc
+endif
endif
+
+BOOTCFLAGS += -isystem $(shell $(BOOTCC) -print-file-name=include)
+
ifdef CONFIG_CPU_BIG_ENDIAN
BOOTCFLAGS += -mbig-endian
else
@@ -95,18 +103,22 @@ libfdtheader := fdt.h libfdt.h libfdt_internal.h
$(addprefix $(obj)/,$(libfdt) libfdt-wrapper.o simpleboot.o epapr.o opal.o): \
$(addprefix $(obj)/,$(libfdtheader))
-src-wlib-y := string.S crt0.S crtsavres.S stdio.c decompress.c main.c \
+src-wlib-y := string.S crt0.S stdio.c decompress.c main.c \
$(libfdt) libfdt-wrapper.c \
ns16550.c serial.c simple_alloc.c div64.S util.S \
elf_util.c $(zlib-y) devtree.c stdlib.c \
- oflib.c ofconsole.c cuboot.c mpsc.c cpm-serial.c \
- uartlite.c mpc52xx-psc.c opal.c
+ oflib.c ofconsole.c cuboot.c cpm-serial.c \
+ uartlite.c opal.c
+src-wlib-$(CONFIG_PPC_MPC52XX) += mpc52xx-psc.c
src-wlib-$(CONFIG_PPC64_BOOT_WRAPPER) += opal-calls.S
+ifndef CONFIG_PPC64_BOOT_WRAPPER
+src-wlib-y += crtsavres.S
+endif
src-wlib-$(CONFIG_40x) += 4xx.c planetcore.c
src-wlib-$(CONFIG_44x) += 4xx.c ebony.c bamboo.c
-src-wlib-$(CONFIG_8xx) += mpc8xx.c planetcore.c fsl-soc.c
+src-wlib-$(CONFIG_PPC_8xx) += mpc8xx.c planetcore.c fsl-soc.c
src-wlib-$(CONFIG_PPC_82xx) += pq2.c fsl-soc.c planetcore.c
-src-wlib-$(CONFIG_EMBEDDED6xx) += mv64x60.c mv64x60_i2c.c ugecon.c fsl-soc.c
+src-wlib-$(CONFIG_EMBEDDED6xx) += mpsc.c mv64x60.c mv64x60_i2c.c ugecon.c fsl-soc.c
src-plat-y := of.c epapr.c
src-plat-$(CONFIG_40x) += fixed-head.S ep405.c cuboot-hotfoot.c \
@@ -121,7 +133,7 @@ src-plat-$(CONFIG_44x) += treeboot-ebony.c cuboot-ebony.c treeboot-bamboo.c \
treeboot-iss4xx.c treeboot-currituck.c \
treeboot-akebono.c \
simpleboot.c fixed-head.S virtex.c
-src-plat-$(CONFIG_8xx) += cuboot-8xx.c fixed-head.S ep88xc.c redboot-8xx.c
+src-plat-$(CONFIG_PPC_8xx) += cuboot-8xx.c fixed-head.S ep88xc.c redboot-8xx.c
src-plat-$(CONFIG_PPC_MPC52xx) += cuboot-52xx.c
src-plat-$(CONFIG_PPC_82xx) += cuboot-pq2.c fixed-head.S ep8248e.c cuboot-824x.c
src-plat-$(CONFIG_PPC_83xx) += cuboot-83xx.c fixed-head.S redboot-83xx.c
@@ -180,10 +192,10 @@ clean-files := $(zlib-) $(zlibheader-) $(zliblinuxheader-) \
empty.c zImage.coff.lds zImage.ps3.lds zImage.lds
quiet_cmd_bootcc = BOOTCC $@
- cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<
+ cmd_bootcc = $(BOOTCC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<
quiet_cmd_bootas = BOOTAS $@
- cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $<
+ cmd_bootas = $(BOOTCC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $<
quiet_cmd_bootar = BOOTAR $@
cmd_bootar = $(CROSS32AR) -cr$(KBUILD_ARFLAGS) $@.$$$$ $(filter-out FORCE,$^); mv $@.$$$$ $@
diff --git a/arch/powerpc/boot/crt0.S b/arch/powerpc/boot/crt0.S
index 12866ccb5694..dcf2f15e6797 100644
--- a/arch/powerpc/boot/crt0.S
+++ b/arch/powerpc/boot/crt0.S
@@ -26,17 +26,17 @@ _zimage_start_opd:
#ifdef __powerpc64__
.balign 8
-p_start: .llong _start
-p_etext: .llong _etext
-p_bss_start: .llong __bss_start
-p_end: .llong _end
-
-p_toc: .llong __toc_start + 0x8000 - p_base
-p_dyn: .llong __dynamic_start - p_base
-p_rela: .llong __rela_dyn_start - p_base
-p_prom: .llong 0
+p_start: .8byte _start
+p_etext: .8byte _etext
+p_bss_start: .8byte __bss_start
+p_end: .8byte _end
+
+p_toc: .8byte __toc_start + 0x8000 - p_base
+p_dyn: .8byte __dynamic_start - p_base
+p_rela: .8byte __rela_dyn_start - p_base
+p_prom: .8byte 0
.weak _platform_stack_top
-p_pstack: .llong _platform_stack_top
+p_pstack: .8byte _platform_stack_top
#else
p_start: .long _start
p_etext: .long _etext
diff --git a/arch/powerpc/boot/crtsavres.S b/arch/powerpc/boot/crtsavres.S
index f3d9b35c07d4..085fb2b9a8b8 100644
--- a/arch/powerpc/boot/crtsavres.S
+++ b/arch/powerpc/boot/crtsavres.S
@@ -37,12 +37,13 @@
* the executable file might be covered by the GNU General Public License.
*/
+#ifdef __powerpc64__
+#error "On PPC64, FPR save/restore functions are provided by the linker."
+#endif
+
.file "crtsavres.S"
.section ".text"
-/* On PowerPC64 Linux, these functions are provided by the linker. */
-#ifndef __powerpc64__
-
#define _GLOBAL(name) \
.type name,@function; \
.globl name; \
@@ -230,4 +231,3 @@ _GLOBAL(_rest32gpr_31_x)
mtlr 0
mr 1,11
blr
-#endif
diff --git a/arch/powerpc/boot/dts/ac14xx.dts b/arch/powerpc/boot/dts/ac14xx.dts
index 27fcabc2f857..83bcfd865167 100644
--- a/arch/powerpc/boot/dts/ac14xx.dts
+++ b/arch/powerpc/boot/dts/ac14xx.dts
@@ -10,7 +10,7 @@
*/
-#include <mpc5121.dtsi>
+#include "mpc5121.dtsi"
/ {
model = "ac14xx";
diff --git a/arch/powerpc/boot/dts/digsy_mtc.dts b/arch/powerpc/boot/dts/digsy_mtc.dts
index 955bff629df3..c280e75c86bf 100644
--- a/arch/powerpc/boot/dts/digsy_mtc.dts
+++ b/arch/powerpc/boot/dts/digsy_mtc.dts
@@ -73,7 +73,7 @@
i2c@3d00 {
eeprom@50 {
- compatible = "at,24c08";
+ compatible = "atmel,24c08";
reg = <0x50>;
};
diff --git a/arch/powerpc/boot/dts/fsl/b4qds.dtsi b/arch/powerpc/boot/dts/fsl/b4qds.dtsi
index 3785ef826d07..999efd3bc167 100644
--- a/arch/powerpc/boot/dts/fsl/b4qds.dtsi
+++ b/arch/powerpc/boot/dts/fsl/b4qds.dtsi
@@ -166,19 +166,19 @@
reg = <0>;
eeprom@50 {
- compatible = "at24,24c64";
+ compatible = "atmel,24c64";
reg = <0x50>;
};
eeprom@51 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x51>;
};
eeprom@53 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x53>;
};
eeprom@57 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x57>;
};
rtc@68 {
diff --git a/arch/powerpc/boot/dts/fsl/c293pcie.dts b/arch/powerpc/boot/dts/fsl/c293pcie.dts
index 66709788429d..5e905e0857cf 100644
--- a/arch/powerpc/boot/dts/fsl/c293pcie.dts
+++ b/arch/powerpc/boot/dts/fsl/c293pcie.dts
@@ -153,7 +153,7 @@
&soc {
i2c@3000 {
eeprom@50 {
- compatible = "st,24c1024";
+ compatible = "st,24c1024", "atmel,24c1024";
reg = <0x50>;
};
diff --git a/arch/powerpc/boot/dts/fsl/kmcent2.dts b/arch/powerpc/boot/dts/fsl/kmcent2.dts
index 47afa438602e..5922c1ea0e96 100644
--- a/arch/powerpc/boot/dts/fsl/kmcent2.dts
+++ b/arch/powerpc/boot/dts/fsl/kmcent2.dts
@@ -293,9 +293,7 @@
compatible = "fsl,ucc-hdlc";
rx-clock-name = "clk9";
tx-clock-name = "clk9";
- fsl,tx-timeslot-mask = <0xfffffffe>;
- fsl,rx-timeslot-mask = <0xfffffffe>;
- fsl,siram-entry-id = <0>;
+ fsl,hdlc-bus;
};
};
};
diff --git a/arch/powerpc/boot/dts/fsl/p1010rdb.dtsi b/arch/powerpc/boot/dts/fsl/p1010rdb.dtsi
index a8e4ba070104..2ca9cee2ddeb 100644
--- a/arch/powerpc/boot/dts/fsl/p1010rdb.dtsi
+++ b/arch/powerpc/boot/dts/fsl/p1010rdb.dtsi
@@ -89,7 +89,7 @@
&board_soc {
i2c@3000 {
eeprom@50 {
- compatible = "st,24c256";
+ compatible = "st,24c256", "atmel,24c256";
reg = <0x50>;
};
diff --git a/arch/powerpc/boot/dts/fsl/p1023rdb.dts b/arch/powerpc/boot/dts/fsl/p1023rdb.dts
index 9716ca64651c..ead928364beb 100644
--- a/arch/powerpc/boot/dts/fsl/p1023rdb.dts
+++ b/arch/powerpc/boot/dts/fsl/p1023rdb.dts
@@ -79,7 +79,7 @@
i2c@3000 {
eeprom@53 {
- compatible = "at24,24c04";
+ compatible = "atmel,24c04";
reg = <0x53>;
};
diff --git a/arch/powerpc/boot/dts/fsl/p2041rdb.dts b/arch/powerpc/boot/dts/fsl/p2041rdb.dts
index e50fea95a853..950816b9d6e1 100644
--- a/arch/powerpc/boot/dts/fsl/p2041rdb.dts
+++ b/arch/powerpc/boot/dts/fsl/p2041rdb.dts
@@ -127,7 +127,7 @@
reg = <0x48>;
};
eeprom@50 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x50>;
};
rtc@68 {
@@ -142,7 +142,7 @@
i2c@118100 {
eeprom@50 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x50>;
};
};
diff --git a/arch/powerpc/boot/dts/fsl/p3041ds.dts b/arch/powerpc/boot/dts/fsl/p3041ds.dts
index 40748e415adb..6f5f7283c533 100644
--- a/arch/powerpc/boot/dts/fsl/p3041ds.dts
+++ b/arch/powerpc/boot/dts/fsl/p3041ds.dts
@@ -124,11 +124,11 @@
i2c@118100 {
eeprom@51 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x51>;
};
eeprom@52 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x52>;
};
};
diff --git a/arch/powerpc/boot/dts/fsl/p4080ds.dts b/arch/powerpc/boot/dts/fsl/p4080ds.dts
index 816b9788d5f6..65e20152e22f 100644
--- a/arch/powerpc/boot/dts/fsl/p4080ds.dts
+++ b/arch/powerpc/boot/dts/fsl/p4080ds.dts
@@ -125,11 +125,11 @@
i2c@118100 {
eeprom@51 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x51>;
};
eeprom@52 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x52>;
};
rtc@68 {
diff --git a/arch/powerpc/boot/dts/fsl/p5020ds.dts b/arch/powerpc/boot/dts/fsl/p5020ds.dts
index cd6f37386111..b24adf902d8d 100644
--- a/arch/powerpc/boot/dts/fsl/p5020ds.dts
+++ b/arch/powerpc/boot/dts/fsl/p5020ds.dts
@@ -124,11 +124,11 @@
i2c@118100 {
eeprom@51 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x51>;
};
eeprom@52 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x52>;
};
};
diff --git a/arch/powerpc/boot/dts/fsl/p5040ds.dts b/arch/powerpc/boot/dts/fsl/p5040ds.dts
index 45084738cf4e..30850b3228e0 100644
--- a/arch/powerpc/boot/dts/fsl/p5040ds.dts
+++ b/arch/powerpc/boot/dts/fsl/p5040ds.dts
@@ -133,11 +133,11 @@
i2c@118100 {
eeprom@51 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x51>;
};
eeprom@52 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x52>;
};
};
diff --git a/arch/powerpc/boot/dts/fsl/t208xqds.dtsi b/arch/powerpc/boot/dts/fsl/t208xqds.dtsi
index ec080bd01b09..db4139999b28 100644
--- a/arch/powerpc/boot/dts/fsl/t208xqds.dtsi
+++ b/arch/powerpc/boot/dts/fsl/t208xqds.dtsi
@@ -147,17 +147,17 @@
reg = <0x0>;
eeprom@50 {
- compatible = "at24,24c512";
+ compatible = "atmel,24c512";
reg = <0x50>;
};
eeprom@51 {
- compatible = "at24,24c02";
+ compatible = "atmel,24c02";
reg = <0x51>;
};
eeprom@57 {
- compatible = "at24,24c02";
+ compatible = "atmel,24c02";
reg = <0x57>;
};
@@ -174,7 +174,7 @@
reg = <0x1>;
eeprom@55 {
- compatible = "at24,24c02";
+ compatible = "atmel,24c02";
reg = <0x55>;
};
};
diff --git a/arch/powerpc/boot/dts/fsl/t4240qds.dts b/arch/powerpc/boot/dts/fsl/t4240qds.dts
index 9573ceada07c..c0913ac5aaad 100644
--- a/arch/powerpc/boot/dts/fsl/t4240qds.dts
+++ b/arch/powerpc/boot/dts/fsl/t4240qds.dts
@@ -377,27 +377,27 @@
reg = <0>;
eeprom@51 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x51>;
};
eeprom@52 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x52>;
};
eeprom@53 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x53>;
};
eeprom@54 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x54>;
};
eeprom@55 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x55>;
};
eeprom@56 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x56>;
};
rtc@68 {
diff --git a/arch/powerpc/boot/dts/fsl/t4240rdb.dts b/arch/powerpc/boot/dts/fsl/t4240rdb.dts
index 8166c660712a..15eb0a3f7290 100644
--- a/arch/powerpc/boot/dts/fsl/t4240rdb.dts
+++ b/arch/powerpc/boot/dts/fsl/t4240rdb.dts
@@ -130,15 +130,15 @@
reg = <0x2f>;
};
eeprom@52 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x52>;
};
eeprom@54 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x54>;
};
eeprom@56 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x56>;
};
rtc@68 {
diff --git a/arch/powerpc/boot/dts/fsp2.dts b/arch/powerpc/boot/dts/fsp2.dts
new file mode 100644
index 000000000000..f10a64aeb83b
--- /dev/null
+++ b/arch/powerpc/boot/dts/fsp2.dts
@@ -0,0 +1,613 @@
+/*
+ * Device Tree Source for FSP2
+ *
+ * Copyright 2010,2012 IBM Corp.
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without
+ * any warranty of any kind, whether express or implied.
+ */
+
+
+/dts-v1/;
+
+/ {
+ #address-cells = <2>;
+ #size-cells = <1>;
+ model = "ibm,fsp2";
+ compatible = "ibm,fsp2";
+ dcr-parent = <&{/cpus/cpu@0}>;
+
+ aliases {
+ ethernet0 = &EMAC0;
+ ethernet1 = &EMAC1;
+ serial0 = &UART0;
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ device_type = "cpu";
+ model = "PowerPC, 476FSP2";
+ reg = <0x0>;
+ clock-frequency = <0>; /* Filled in by cuboot */
+ timebase-frequency = <0>; /* Filled in by cuboot */
+ i-cache-line-size = <32>;
+ d-cache-line-size = <32>;
+ d-cache-size = <32768>;
+ i-cache-size = <32768>;
+ dcr-controller;
+ dcr-access-method = "native";
+ };
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0x00000000 0x00000000 0x00000000>; /* Filled in by
+ cuboot */
+ };
+
+ clocks {
+ mmc_clk: mmc_clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <50000000>;
+ clock-output-names = "mmc_clk";
+ };
+ };
+
+ UIC0: uic0 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <0>;
+ dcr-reg = <0x2c0 0x8>;
+ };
+
+ /* "interrupts" field is <bit level bit level>
+ first pair is non-critical, second is critical */
+ UIC1_0: uic1_0 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <1>;
+ dcr-reg = <0x2c8 0x8>;
+ interrupt-parent = <&UIC0>;
+ interrupts = <21 0x4 4 0x84>;
+ };
+
+ /* PSI and DMA */
+ UIC1_1: uic1_1 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <2>;
+ dcr-reg = <0x350 0x8>;
+ interrupt-parent = <&UIC0>;
+ interrupts = <22 0x4 5 0x84>;
+ };
+
+ /* Ethernet and USB */
+ UIC1_2: uic1_2 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <3>;
+ dcr-reg = <0x358 0x8>;
+ interrupt-parent = <&UIC0>;
+ interrupts = <23 0x4 6 0x84>;
+ };
+
+ /* PLB Errors */
+ UIC1_3: uic1_3 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <4>;
+ dcr-reg = <0x360 0x8>;
+ interrupt-parent = <&UIC0>;
+ interrupts = <24 0x4 7 0x84>;
+ };
+
+ UIC1_4: uic1_4 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <5>;
+ dcr-reg = <0x368 0x8>;
+ interrupt-parent = <&UIC0>;
+ interrupts = <25 0x4 8 0x84>;
+ };
+
+ UIC1_5: uic1_5 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <6>;
+ dcr-reg = <0x370 0x8>;
+ interrupt-parent = <&UIC0>;
+ interrupts = <26 0x4 9 0x84>;
+ };
+
+ /* 2nd level UICs for FSI */
+ UIC2_0: uic2_0 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <7>;
+ dcr-reg = <0x2d0 0x8>;
+ interrupt-parent = <&UIC1_0>;
+ interrupts = <16 0x4 0 0x84>;
+ };
+
+ UIC2_1: uic2_1 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <8>;
+ dcr-reg = <0x2d8 0x8>;
+ interrupt-parent = <&UIC1_0>;
+ interrupts = <17 0x4 1 0x84>;
+ };
+
+ UIC2_2: uic2_2 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <9>;
+ dcr-reg = <0x2e0 0x8>;
+ interrupt-parent = <&UIC1_0>;
+ interrupts = <18 0x4 2 0x84>;
+ };
+
+ UIC2_3: uic2_3 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <10>;
+ dcr-reg = <0x2e8 0x8>;
+ interrupt-parent = <&UIC1_0>;
+ interrupts = <19 0x4 3 0x84>;
+ };
+
+ UIC2_4: uic2_4 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <11>;
+ dcr-reg = <0x2f0 0x8>;
+ interrupt-parent = <&UIC1_0>;
+ interrupts = <20 0x4 4 0x84>;
+ };
+
+ UIC2_5: uic2_5 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <12>;
+ dcr-reg = <0x2f8 0x8>;
+ interrupt-parent = <&UIC1_0>;
+ interrupts = <21 0x4 5 0x84>;
+ };
+
+ UIC2_6: uic2_6 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <13>;
+ dcr-reg = <0x300 0x8>;
+ interrupt-parent = <&UIC1_0>;
+ interrupts = <22 0x4 6 0x84>;
+ };
+
+ UIC2_7: uic2_7 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <14>;
+ dcr-reg = <0x308 0x8>;
+ interrupt-parent = <&UIC1_0>;
+ interrupts = <23 0x4 7 0x84>;
+ };
+
+ UIC2_8: uic2_8 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <15>;
+ dcr-reg = <0x310 0x8>;
+ interrupt-parent = <&UIC1_0>;
+ interrupts = <24 0x4 8 0x84>;
+ };
+
+ UIC2_9: uic2_9 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <16>;
+ dcr-reg = <0x318 0x8>;
+ interrupt-parent = <&UIC1_0>;
+ interrupts = <25 0x4 9 0x84>;
+ };
+
+ UIC2_10: uic2_10 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <17>;
+ dcr-reg = <0x320 0x8>;
+ interrupt-parent = <&UIC1_0>;
+ interrupts = <26 0x4 10 0x84>;
+ };
+
+ UIC2_11: uic2_11 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <18>;
+ dcr-reg = <0x328 0x8>;
+ interrupt-parent = <&UIC1_0>;
+ interrupts = <27 0x4 11 0x84>;
+ };
+
+ UIC2_12: uic2_12 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <19>;
+ dcr-reg = <0x330 0x8>;
+ interrupt-parent = <&UIC1_0>;
+ interrupts = <28 0x4 12 0x84>;
+ };
+
+ UIC2_13: uic2_13 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <20>;
+ dcr-reg = <0x338 0x8>;
+ interrupt-parent = <&UIC1_0>;
+ interrupts = <29 0x4 13 0x84>;
+ };
+
+ UIC2_14: uic2_14 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <21>;
+ dcr-reg = <0x340 0x8>;
+ interrupt-parent = <&UIC1_0>;
+ interrupts = <30 0x4 14 0x84>;
+ };
+
+ UIC2_15: uic2_15 {
+ #address-cells = <0>;
+ #size-cells = <0>;
+ #interrupt-cells = <2>;
+
+ compatible = "ibm,uic";
+ interrupt-controller;
+ cell-index = <22>;
+ dcr-reg = <0x348 0x8>;
+ interrupt-parent = <&UIC1_0>;
+ interrupts = <31 0x4 15 0x84>;
+ };
+
+ plb6 {
+ compatible = "ibm,plb6";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges;
+
+ MCW0: memory-controller-wrapper {
+ compatible = "ibm,cw-476fsp2";
+ dcr-reg = <0x11111800 0x40>;
+ };
+
+ MCIF0: memory-controller {
+ compatible = "ibm,sdram-476fsp2", "ibm,sdram-4xx-ddr3";
+ dcr-reg = <0x11120000 0x10000>;
+ mcer-device = <&MCW0>;
+ interrupt-parent = <&UIC0>;
+ interrupts = <10 0x84 /* ECC UE */
+ 11 0x84>; /* ECC CE */
+ };
+ };
+
+ plb4 {
+ compatible = "ibm,plb4";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x00000000 0x00000010 0x00000000 0x80000000
+ 0x80000000 0x00000010 0x80000000 0x80000000>;
+ clock-frequency = <333333334>;
+
+ plb6-system-hung-irq {
+ compatible = "ibm,bus-error-irq";
+ #interrupt-cells = <2>;
+ interrupt-parent = <&UIC0>;
+ interrupts = <0 0x84>;
+ };
+
+ l2-error-irq {
+ compatible = "ibm,bus-error-irq";
+ #interrupt-cells = <2>;
+ interrupt-parent = <&UIC0>;
+ interrupts = <20 0x84>;
+ };
+
+ plb6-plb4-irq {
+ compatible = "ibm,bus-error-irq";
+ #interrupt-cells = <2>;
+ interrupt-parent = <&UIC0>;
+ interrupts = <1 0x84>;
+ };
+
+ plb4-ahb-irq {
+ compatible = "ibm,bus-error-irq";
+ #interrupt-cells = <2>;
+ interrupt-parent = <&UIC1_3>;
+ interrupts = <20 0x84>;
+ };
+
+ opbd-error-irq {
+ compatible = "ibm,opbd-error-irq";
+ #interrupt-cells = <2>;
+ interrupt-parent = <&UIC1_4>;
+ interrupts = <5 0x84>;
+ };
+
+ cmu-error-irq {
+ compatible = "ibm,cmu-error-irq";
+ #interrupt-cells = <2>;
+ interrupt-parent = <&UIC0>;
+ interrupts = <28 0x84>;
+ };
+
+ conf-error-irq {
+ compatible = "ibm,conf-error-irq";
+ #interrupt-cells = <2>;
+ interrupt-parent = <&UIC1_4>;
+ interrupts = <11 0x84>;
+ };
+
+ mc-ue-irq {
+ compatible = "ibm,mc-ue-irq";
+ #interrupt-cells = <2>;
+ interrupt-parent = <&UIC0>;
+ interrupts = <10 0x84>;
+ };
+
+ reset-warning-irq {
+ compatible = "ibm,reset-warning-irq";
+ #interrupt-cells = <2>;
+ interrupt-parent = <&UIC0>;
+ interrupts = <17 0x84>;
+ };
+
+ MAL0: mcmal0 {
+ #interrupt-cells = <1>;
+ #address-cells = <0>;
+ #size-cells = <0>;
+ compatible = "ibm,mcmal";
+ dcr-reg = <0x80 0x80>;
+ num-tx-chans = <1>;
+ num-rx-chans = <1>;
+ interrupt-parent = <&MAL0>;
+ interrupts = <0 1 2 3 4>;
+ /* index interrupt-parent interrupt# type */
+ interrupt-map = </*TXEOB*/ 0 &UIC1_2 4 0x4
+ /*RXEOB*/ 1 &UIC1_2 3 0x4
+ /*SERR*/ 2 &UIC1_2 7 0x4
+ /*TXDE*/ 3 &UIC1_2 6 0x4
+ /*RXDE*/ 4 &UIC1_2 5 0x4>;
+ };
+
+ MAL1: mcmal1 {
+ #interrupt-cells = <1>;
+ #address-cells = <0>;
+ #size-cells = <0>;
+ compatible = "ibm,mcmal";
+ dcr-reg = <0x100 0x80>;
+ num-tx-chans = <1>;
+ num-rx-chans = <1>;
+ interrupt-parent = <&MAL1>;
+ interrupts = <0 1 2 3 4>;
+ /* index interrupt-parent interrupt# type */
+ interrupt-map = </*TXEOB*/ 0 &UIC1_2 12 0x4
+ /*RXEOB*/ 1 &UIC1_2 11 0x4
+ /*SERR*/ 2 &UIC1_2 15 0x4
+ /*TXDE*/ 3 &UIC1_2 14 0x4
+ /*RXDE*/ 4 &UIC1_2 13 0x4>;
+ };
+
+ mmc0: mmc@20c0000 {
+ compatible = "st,sdhci-stih407", "st,sdhci";
+ reg = <0x020c0000 0x20000>;
+ reg-names = "mmc";
+ interrupts = <21 0x4>;
+ interrupt-parent = <&UIC1_3>;
+ interrupt-names = "mmcirq";
+ pinctrl-names = "default";
+ pinctrl-0 = <>;
+ clock-names = "mmc";
+ clocks = <&mmc_clk>;
+ bus-width = <4>;
+ non-removable;
+ sd-uhs-sdr50;
+ sd-uhs-sdr104;
+ sd-uhs-ddr50;
+ };
+
+ opb {
+ compatible = "ibm,opb";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges; // pass-thru to parent bus
+ clock-frequency = <83333334>;
+
+ EMAC0: ethernet@b0000000 {
+ linux,network-index = <0>;
+ device_type = "network";
+ compatible = "ibm,emac4sync";
+ has-inverted-stacr-oc;
+ interrupt-parent = <&UIC1_2>;
+ interrupts = <1 0x4 0 0x4>;
+ reg = <0xb0000000 0x100>;
+ local-mac-address = [000000000000]; /* Filled in by
+ cuboot */
+ mal-device = <&MAL0>;
+ mal-tx-channel = <0>;
+ mal-rx-channel = <0>;
+ cell-index = <0>;
+ max-frame-size = <1500>;
+ rx-fifo-size = <4096>;
+ tx-fifo-size = <4096>;
+ rx-fifo-size-gige = <16384>;
+ tx-fifo-size-gige = <8192>;
+ phy-address = <1>;
+ phy-mode = "rgmii";
+ phy-map = <00000003>;
+ rgmii-device = <&RGMII>;
+ rgmii-channel = <0>;
+ };
+
+ EMAC1: ethernet@b0000100 {
+ linux,network-index = <1>;
+ device_type = "network";
+ compatible = "ibm,emac4sync";
+ has-inverted-stacr-oc;
+ interrupt-parent = <&UIC1_2>;
+ interrupts = <9 0x4 8 0x4>;
+ reg = <0xb0000100 0x100>;
+ local-mac-address = [000000000000]; /* Filled in by
+ cuboot */
+ mal-device = <&MAL1>;
+ mal-tx-channel = <0>;
+ mal-rx-channel = <0>;
+ cell-index = <1>;
+ max-frame-size = <1500>;
+ rx-fifo-size = <4096>;
+ tx-fifo-size = <4096>;
+ rx-fifo-size-gige = <16384>;
+ tx-fifo-size-gige = <8192>;
+ phy-address = <2>;
+ phy-mode = "rgmii";
+ phy-map = <00000003>;
+ rgmii-device = <&RGMII>;
+ rgmii-channel = <1>;
+ };
+
+ RGMII: rgmii@b0000600 {
+ compatible = "ibm,rgmii";
+ has-mdio;
+ reg = <0xb0000600 0x8>;
+ };
+
+ UART0: serial@b0020000 {
+ device_type = "serial";
+ compatible = "ns16550";
+ reg = <0xb0020000 0x8>;
+ virtual-reg = <0xb0020000>;
+ clock-frequency = <20833333>;
+ current-speed = <115200>;
+ interrupt-parent = <&UIC0>;
+ interrupts = <31 0x4>;
+ };
+ };
+
+ OHCI1: ohci@02040000 {
+ compatible = "ohci-le";
+ reg = <0x02040000 0xa0>;
+ interrupt-parent = <&UIC1_3>;
+ interrupts = <28 0x8 29 0x8>;
+ };
+
+ OHCI2: ohci@02080000 {
+ compatible = "ohci-le";
+ reg = <0x02080000 0xa0>;
+ interrupt-parent = <&UIC1_3>;
+ interrupts = <30 0x8 31 0x8>;
+ };
+
+ EHCI: ehci@02000000 {
+ compatible = "usb-ehci";
+ reg = <0x02000000 0xa4>;
+ interrupt-parent = <&UIC1_3>;
+ interrupts = <23 0x4>;
+ };
+
+ };
+
+ chosen {
+ linux,stdout-path = "/plb/opb/serial@b0020000";
+ bootargs = "console=ttyS0,115200 rw log_buf_len=32768 debug";
+ };
+};
diff --git a/arch/powerpc/boot/dts/mpc5121ads.dts b/arch/powerpc/boot/dts/mpc5121ads.dts
index 75888ce2c792..1e81a7e32d18 100644
--- a/arch/powerpc/boot/dts/mpc5121ads.dts
+++ b/arch/powerpc/boot/dts/mpc5121ads.dts
@@ -9,7 +9,7 @@
* option) any later version.
*/
-#include <mpc5121.dtsi>
+#include "mpc5121.dtsi"
/ {
model = "mpc5121ads";
@@ -94,7 +94,7 @@
};
eeprom@50 {
- compatible = "at,24c32";
+ compatible = "atmel,24c32";
reg = <0x50>;
};
diff --git a/arch/powerpc/boot/dts/mpc8308_p1m.dts b/arch/powerpc/boot/dts/mpc8308_p1m.dts
index 57f86cdf9f36..cab933b3957a 100644
--- a/arch/powerpc/boot/dts/mpc8308_p1m.dts
+++ b/arch/powerpc/boot/dts/mpc8308_p1m.dts
@@ -123,7 +123,7 @@
interrupt-parent = <&ipic>;
dfsrr;
fram@50 {
- compatible = "ramtron,24c64";
+ compatible = "ramtron,24c64", "atmel,24c64";
reg = <0x50>;
};
};
diff --git a/arch/powerpc/boot/dts/mpc8349emitx.dts b/arch/powerpc/boot/dts/mpc8349emitx.dts
index 90aed3ac2f69..648a85858eb5 100644
--- a/arch/powerpc/boot/dts/mpc8349emitx.dts
+++ b/arch/powerpc/boot/dts/mpc8349emitx.dts
@@ -92,7 +92,7 @@
dfsrr;
eeprom: at24@50 {
- compatible = "st,24c256";
+ compatible = "st,24c256", "atmel,24c256";
reg = <0x50>;
};
@@ -130,7 +130,7 @@
};
spd: at24@51 {
- compatible = "at24,spd";
+ compatible = "atmel,spd";
reg = <0x51>;
};
diff --git a/arch/powerpc/boot/dts/mpc8377_rdb.dts b/arch/powerpc/boot/dts/mpc8377_rdb.dts
index e32613963ab0..5e85d8c93bca 100644
--- a/arch/powerpc/boot/dts/mpc8377_rdb.dts
+++ b/arch/powerpc/boot/dts/mpc8377_rdb.dts
@@ -150,7 +150,7 @@
};
at24@50 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x50>;
};
diff --git a/arch/powerpc/boot/dts/mpc8377_wlan.dts b/arch/powerpc/boot/dts/mpc8377_wlan.dts
index c0c790168b96..fee15fcbb46f 100644
--- a/arch/powerpc/boot/dts/mpc8377_wlan.dts
+++ b/arch/powerpc/boot/dts/mpc8377_wlan.dts
@@ -135,7 +135,7 @@
dfsrr;
at24@50 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x50>;
};
diff --git a/arch/powerpc/boot/dts/mpc8378_rdb.dts b/arch/powerpc/boot/dts/mpc8378_rdb.dts
index 71842fcd621f..e973d61956b9 100644
--- a/arch/powerpc/boot/dts/mpc8378_rdb.dts
+++ b/arch/powerpc/boot/dts/mpc8378_rdb.dts
@@ -150,7 +150,7 @@
};
at24@50 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x50>;
};
diff --git a/arch/powerpc/boot/dts/mpc8379_rdb.dts b/arch/powerpc/boot/dts/mpc8379_rdb.dts
index e442a29b2fe0..ed5d12ff2ee0 100644
--- a/arch/powerpc/boot/dts/mpc8379_rdb.dts
+++ b/arch/powerpc/boot/dts/mpc8379_rdb.dts
@@ -148,7 +148,7 @@
};
at24@50 {
- compatible = "at24,24c256";
+ compatible = "atmel,24c256";
reg = <0x50>;
};
diff --git a/arch/powerpc/boot/dts/pcm030.dts b/arch/powerpc/boot/dts/pcm030.dts
index 192e66af0001..836e47cc4bed 100644
--- a/arch/powerpc/boot/dts/pcm030.dts
+++ b/arch/powerpc/boot/dts/pcm030.dts
@@ -71,7 +71,7 @@
reg = <0x51>;
};
eeprom@52 {
- compatible = "catalyst,24c32";
+ compatible = "catalyst,24c32", "atmel,24c32";
reg = <0x52>;
pagesize = <32>;
};
diff --git a/arch/powerpc/boot/dts/pcm032.dts b/arch/powerpc/boot/dts/pcm032.dts
index 96b139bf50e9..576249bf2fb9 100644
--- a/arch/powerpc/boot/dts/pcm032.dts
+++ b/arch/powerpc/boot/dts/pcm032.dts
@@ -75,7 +75,7 @@
reg = <0x51>;
};
eeprom@52 {
- compatible = "catalyst,24c32";
+ compatible = "catalyst,24c32", "atmel,24c32";
reg = <0x52>;
pagesize = <32>;
};
diff --git a/arch/powerpc/boot/dts/pdm360ng.dts b/arch/powerpc/boot/dts/pdm360ng.dts
index 0cec7244abe7..445b88114009 100644
--- a/arch/powerpc/boot/dts/pdm360ng.dts
+++ b/arch/powerpc/boot/dts/pdm360ng.dts
@@ -13,7 +13,7 @@
* option) any later version.
*/
-#include <mpc5121.dtsi>
+#include "mpc5121.dtsi"
/ {
model = "pdm360ng";
diff --git a/arch/powerpc/boot/dts/sequoia.dts b/arch/powerpc/boot/dts/sequoia.dts
index b1d329246b08..e41b88a5eaee 100644
--- a/arch/powerpc/boot/dts/sequoia.dts
+++ b/arch/powerpc/boot/dts/sequoia.dts
@@ -229,7 +229,7 @@
};
partition@84000 {
label = "user";
- reg = <0x00000000 0x01f7c000>;
+ reg = <0x00084000 0x01f7c000>;
};
};
};
diff --git a/arch/powerpc/boot/dts/warp.dts b/arch/powerpc/boot/dts/warp.dts
index e576ee85c42f..ea9053ef4819 100644
--- a/arch/powerpc/boot/dts/warp.dts
+++ b/arch/powerpc/boot/dts/warp.dts
@@ -238,7 +238,7 @@
/* This will create 52 and 53 */
at24@52 {
- compatible = "at,24c04";
+ compatible = "atmel,24c04";
reg = <0x52>;
};
};
diff --git a/arch/powerpc/boot/ppc_asm.h b/arch/powerpc/boot/ppc_asm.h
index b03373d8b386..c63299f9fdd9 100644
--- a/arch/powerpc/boot/ppc_asm.h
+++ b/arch/powerpc/boot/ppc_asm.h
@@ -67,15 +67,25 @@
#define MSR_LE 0x0000000000000001
#define FIXUP_ENDIAN \
- tdi 0, 0, 0x48; /* Reverse endian of b . + 8 */ \
- b $+36; /* Skip trampoline if endian is good */ \
- .long 0x05009f42; /* bcl 20,31,$+4 */ \
- .long 0xa602487d; /* mflr r10 */ \
- .long 0x1c004a39; /* addi r10,r10,28 */ \
+ tdi 0,0,0x48; /* Reverse endian of b . + 8 */ \
+ b $+44; /* Skip trampoline if endian is good */ \
.long 0xa600607d; /* mfmsr r11 */ \
.long 0x01006b69; /* xori r11,r11,1 */ \
+ .long 0x00004039; /* li r10,0 */ \
+ .long 0x6401417d; /* mtmsrd r10,1 */ \
+ .long 0x05009f42; /* bcl 20,31,$+4 */ \
+ .long 0xa602487d; /* mflr r10 */ \
+ .long 0x14004a39; /* addi r10,r10,20 */ \
.long 0xa6035a7d; /* mtsrr0 r10 */ \
.long 0xa6037b7d; /* mtsrr1 r11 */ \
.long 0x2400004c /* rfid */
+#ifdef CONFIG_PPC_8xx
+#define MFTBL(dest) mftb dest
+#define MFTBU(dest) mftbu dest
+#else
+#define MFTBL(dest) mfspr dest, SPRN_TBRL
+#define MFTBU(dest) mfspr dest, SPRN_TBRU
+#endif
+
#endif /* _PPC64_PPC_ASM_H */
diff --git a/arch/powerpc/boot/serial.c b/arch/powerpc/boot/serial.c
index e04c1e4063ae..7b5c02b1afd0 100644
--- a/arch/powerpc/boot/serial.c
+++ b/arch/powerpc/boot/serial.c
@@ -120,15 +120,19 @@ int serial_console_init(void)
if (dt_is_compatible(devp, "ns16550") ||
dt_is_compatible(devp, "pnpPNP,501"))
rc = ns16550_console_init(devp, &serial_cd);
+#ifdef CONFIG_EMBEDDED6xx
else if (dt_is_compatible(devp, "marvell,mv64360-mpsc"))
rc = mpsc_console_init(devp, &serial_cd);
+#endif
else if (dt_is_compatible(devp, "fsl,cpm1-scc-uart") ||
dt_is_compatible(devp, "fsl,cpm1-smc-uart") ||
dt_is_compatible(devp, "fsl,cpm2-scc-uart") ||
dt_is_compatible(devp, "fsl,cpm2-smc-uart"))
rc = cpm_console_init(devp, &serial_cd);
+#ifdef CONFIG_PPC_MPC52XX
else if (dt_is_compatible(devp, "fsl,mpc5200-psc-uart"))
rc = mpc5200_psc_console_init(devp, &serial_cd);
+#endif
else if (dt_is_compatible(devp, "xlnx,opb-uartlite-1.00.b") ||
dt_is_compatible(devp, "xlnx,xps-uartlite-1.00.a"))
rc = uartlite_console_init(devp, &serial_cd);
diff --git a/arch/powerpc/boot/util.S b/arch/powerpc/boot/util.S
index 243b8497d58b..ec069177d942 100644
--- a/arch/powerpc/boot/util.S
+++ b/arch/powerpc/boot/util.S
@@ -71,32 +71,18 @@ udelay:
add r4,r4,r5
addi r4,r4,-1
divw r4,r4,r5 /* BUS ticks */
-#ifdef CONFIG_8xx
-1: mftbu r5
- mftb r6
- mftbu r7
-#else
-1: mfspr r5, SPRN_TBRU
- mfspr r6, SPRN_TBRL
- mfspr r7, SPRN_TBRU
-#endif
+1: MFTBU(r5)
+ MFTBL(r6)
+ MFTBU(r7)
cmpw 0,r5,r7
bne 1b /* Get [synced] base time */
addc r9,r6,r4 /* Compute end time */
addze r8,r5
-#ifdef CONFIG_8xx
-2: mftbu r5
-#else
-2: mfspr r5, SPRN_TBRU
-#endif
+2: MFTBU(r5)
cmpw 0,r5,r8
blt 2b
bgt 3f
-#ifdef CONFIG_8xx
- mftb r6
-#else
- mfspr r6, SPRN_TBRL
-#endif
+ MFTBL(r6)
cmpw 0,r6,r9
blt 2b
3: blr
diff --git a/arch/powerpc/configs/40x/acadia_defconfig b/arch/powerpc/configs/40x/acadia_defconfig
index 3438ed99c088..e57344c3b0d7 100644
--- a/arch/powerpc/configs/40x/acadia_defconfig
+++ b/arch/powerpc/configs/40x/acadia_defconfig
@@ -64,4 +64,3 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/40x/ep405_defconfig b/arch/powerpc/configs/40x/ep405_defconfig
index 36c44c0b560c..0f66f8a87be8 100644
--- a/arch/powerpc/configs/40x/ep405_defconfig
+++ b/arch/powerpc/configs/40x/ep405_defconfig
@@ -64,4 +64,3 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/40x/kilauea_defconfig b/arch/powerpc/configs/40x/kilauea_defconfig
index ad2156c6e2fc..b5cc7426c21f 100644
--- a/arch/powerpc/configs/40x/kilauea_defconfig
+++ b/arch/powerpc/configs/40x/kilauea_defconfig
@@ -72,4 +72,3 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/40x/klondike_defconfig b/arch/powerpc/configs/40x/klondike_defconfig
index 28adb782ec51..caab658d1da1 100644
--- a/arch/powerpc/configs/40x/klondike_defconfig
+++ b/arch/powerpc/configs/40x/klondike_defconfig
@@ -26,7 +26,6 @@ CONFIG_SCSI_SAS_ATTRS=y
# CONFIG_VT is not set
# CONFIG_UNIX98_PTYS is not set
# CONFIG_LEGACY_PTYS is not set
-# CONFIG_DEVKMEM is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
# CONFIG_USB_SUPPORT is not set
diff --git a/arch/powerpc/configs/40x/makalu_defconfig b/arch/powerpc/configs/40x/makalu_defconfig
index a00f434c4d47..e0b1489b7c7b 100644
--- a/arch/powerpc/configs/40x/makalu_defconfig
+++ b/arch/powerpc/configs/40x/makalu_defconfig
@@ -62,4 +62,3 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/40x/obs600_defconfig b/arch/powerpc/configs/40x/obs600_defconfig
index e500e6a12b3e..aac06d2ad01a 100644
--- a/arch/powerpc/configs/40x/obs600_defconfig
+++ b/arch/powerpc/configs/40x/obs600_defconfig
@@ -72,4 +72,3 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/40x/virtex_defconfig b/arch/powerpc/configs/40x/virtex_defconfig
index 65dc084a154c..a2b2770eee8f 100644
--- a/arch/powerpc/configs/40x/virtex_defconfig
+++ b/arch/powerpc/configs/40x/virtex_defconfig
@@ -41,9 +41,9 @@ CONFIG_NETDEVICES=y
CONFIG_SERIO_XILINX_XPS_PS2=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_UARTLITE=y
CONFIG_SERIAL_UARTLITE_CONSOLE=y
-CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_XILINX_HWICAP=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_SYSFS=y
@@ -74,4 +74,3 @@ CONFIG_FONT_8x16=y
CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_KERNEL=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/40x/walnut_defconfig b/arch/powerpc/configs/40x/walnut_defconfig
index 567f99bd64a3..6faa03cd661c 100644
--- a/arch/powerpc/configs/40x/walnut_defconfig
+++ b/arch/powerpc/configs/40x/walnut_defconfig
@@ -57,4 +57,3 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/44x/akebono_defconfig b/arch/powerpc/configs/44x/akebono_defconfig
index 143b2fbddb46..9fcd361607e2 100644
--- a/arch/powerpc/configs/44x/akebono_defconfig
+++ b/arch/powerpc/configs/44x/akebono_defconfig
@@ -123,7 +123,6 @@ CONFIG_NLS_DEFAULT="n"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
CONFIG_DEBUG_INFO=y
-CONFIG_DEBUG_FS=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_XMON=y
@@ -135,5 +134,4 @@ CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_SHA1_PPC=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/powerpc/configs/44x/bamboo_defconfig b/arch/powerpc/configs/44x/bamboo_defconfig
index 477d99fefd9a..6f3a6ecc81e7 100644
--- a/arch/powerpc/configs/44x/bamboo_defconfig
+++ b/arch/powerpc/configs/44x/bamboo_defconfig
@@ -55,4 +55,3 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/44x/currituck_defconfig b/arch/powerpc/configs/44x/currituck_defconfig
index 3799a26de6f4..5f1df5fe4453 100644
--- a/arch/powerpc/configs/44x/currituck_defconfig
+++ b/arch/powerpc/configs/44x/currituck_defconfig
@@ -81,7 +81,6 @@ CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
CONFIG_NLS_DEFAULT="n"
CONFIG_DEBUG_INFO=y
-CONFIG_DEBUG_FS=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_XMON=y
@@ -94,5 +93,4 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/powerpc/configs/44x/ebony_defconfig b/arch/powerpc/configs/44x/ebony_defconfig
index c265f54ab9e5..e2b6578993d5 100644
--- a/arch/powerpc/configs/44x/ebony_defconfig
+++ b/arch/powerpc/configs/44x/ebony_defconfig
@@ -59,5 +59,4 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/powerpc/configs/44x/eiger_defconfig b/arch/powerpc/configs/44x/eiger_defconfig
index bb6bd6d90821..f6dc23fef683 100644
--- a/arch/powerpc/configs/44x/eiger_defconfig
+++ b/arch/powerpc/configs/44x/eiger_defconfig
@@ -84,18 +84,14 @@ CONFIG_CRYPTO_CCM=y
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CTS=y
-CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_LRW=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_XTS=y
-CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=y
CONFIG_CRYPTO_MD4=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_SHA1=y
-CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_ARC4=y
CONFIG_CRYPTO_BLOWFISH=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/44x/fsp2_defconfig b/arch/powerpc/configs/44x/fsp2_defconfig
new file mode 100644
index 000000000000..bae6b26bcfba
--- /dev/null
+++ b/arch/powerpc/configs/44x/fsp2_defconfig
@@ -0,0 +1,127 @@
+CONFIG_44x=y
+# CONFIG_SWAP is not set
+CONFIG_SYSVIPC=y
+# CONFIG_CROSS_MEMORY_ATTACH is not set
+# CONFIG_FHANDLE is not set
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=16
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_RD_LZMA is not set
+# CONFIG_RD_XZ is not set
+# CONFIG_RD_LZO is not set
+# CONFIG_RD_LZ4 is not set
+CONFIG_KALLSYMS_ALL=y
+CONFIG_BPF_SYSCALL=y
+CONFIG_EMBEDDED=y
+CONFIG_PROFILING=y
+CONFIG_OPROFILE=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_BLK_DEV_BSG is not set
+CONFIG_PPC_47x=y
+# CONFIG_EBONY is not set
+CONFIG_FSP2=y
+CONFIG_476FPE_ERR46=y
+CONFIG_SWIOTLB=y
+CONFIG_KEXEC=y
+CONFIG_CRASH_DUMP=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="ip=on rw"
+# CONFIG_SUSPEND is not set
+# CONFIG_PCI is not set
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_IPV6 is not set
+CONFIG_VLAN_8021Q=m
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_CONNECTOR=y
+CONFIG_MTD=y
+CONFIG_MTD_BLOCK=y
+CONFIG_MTD_JEDECPROBE=y
+CONFIG_MTD_CFI_AMDSTD=y
+CONFIG_MTD_PHYSMAP_OF=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=35000
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_BLK_DEV_SD=y
+# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_ATA=y
+# CONFIG_SATA_PMP is not set
+# CONFIG_ATA_SFF is not set
+CONFIG_NETDEVICES=y
+CONFIG_BONDING=m
+CONFIG_IBM_EMAC=m
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_DEVMEM is not set
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=32
+CONFIG_SERIAL_8250_RUNTIME_UARTS=32
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_OF_PLATFORM=y
+# CONFIG_HW_RANDOM is not set
+CONFIG_I2C=y
+CONFIG_I2C_IBM_IIC=y
+CONFIG_PTP_1588_CLOCK=y
+# CONFIG_HWMON is not set
+CONFIG_THERMAL=y
+CONFIG_WATCHDOG=y
+CONFIG_BOOKE_WDT=y
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_MMC=y
+CONFIG_MMC_DEBUG=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MMC_SDHCI_OF_ARASAN=y
+CONFIG_MMC_SDHCI_ST=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_M41T80=y
+CONFIG_RESET_CONTROLLER=y
+CONFIG_EXT2_FS=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_JFFS2_FS=y
+CONFIG_JFFS2_FS_WBUF_VERIFY=y
+CONFIG_JFFS2_SUMMARY=y
+CONFIG_JFFS2_FS_XATTR=y
+CONFIG_CRAMFS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3_ACL=y
+CONFIG_NFS_V4=y
+CONFIG_ROOT_NFS=y
+CONFIG_NLS_DEFAULT="n"
+CONFIG_XZ_DEC=y
+CONFIG_PRINTK_TIME=y
+CONFIG_MESSAGE_LOGLEVEL_DEFAULT=3
+CONFIG_DYNAMIC_DEBUG=y
+CONFIG_DEBUG_INFO=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_CRYPTO_CBC=y
+CONFIG_CRYPTO_ECB=y
+CONFIG_CRYPTO_PCBC=y
+CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_DES=y
+# CONFIG_CRYPTO_HW is not set
diff --git a/arch/powerpc/configs/44x/icon_defconfig b/arch/powerpc/configs/44x/icon_defconfig
index 060f2edddb71..4453a4590b1a 100644
--- a/arch/powerpc/configs/44x/icon_defconfig
+++ b/arch/powerpc/configs/44x/icon_defconfig
@@ -47,8 +47,6 @@ CONFIG_FUSION_LOGGING=y
CONFIG_NETDEVICES=y
CONFIG_IBM_EMAC=y
# CONFIG_WLAN is not set
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=640
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=480
# CONFIG_MOUSE_PS2_ALPS is not set
# CONFIG_MOUSE_PS2_LOGIPS2PP is not set
# CONFIG_MOUSE_PS2_SYNAPTICS is not set
@@ -94,4 +92,3 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/44x/iss476-smp_defconfig b/arch/powerpc/configs/44x/iss476-smp_defconfig
index 115a6b2be18b..d24bfa6ecd62 100644
--- a/arch/powerpc/configs/44x/iss476-smp_defconfig
+++ b/arch/powerpc/configs/44x/iss476-smp_defconfig
@@ -63,7 +63,6 @@ CONFIG_TMPFS=y
CONFIG_CRAMFS=y
# CONFIG_NETWORK_FILESYSTEMS is not set
CONFIG_DEBUG_INFO=y
-CONFIG_DEBUG_FS=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_PPC_EARLY_DEBUG=y
@@ -72,5 +71,4 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/powerpc/configs/44x/katmai_defconfig b/arch/powerpc/configs/44x/katmai_defconfig
index b999048c4ae6..5d3f685a7af8 100644
--- a/arch/powerpc/configs/44x/katmai_defconfig
+++ b/arch/powerpc/configs/44x/katmai_defconfig
@@ -60,4 +60,3 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/44x/rainier_defconfig b/arch/powerpc/configs/44x/rainier_defconfig
index b8c9ee45d0a2..7b8355a5698d 100644
--- a/arch/powerpc/configs/44x/rainier_defconfig
+++ b/arch/powerpc/configs/44x/rainier_defconfig
@@ -66,4 +66,3 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/44x/redwood_defconfig b/arch/powerpc/configs/44x/redwood_defconfig
index a4bb048448da..918cfb63f0c8 100644
--- a/arch/powerpc/configs/44x/redwood_defconfig
+++ b/arch/powerpc/configs/44x/redwood_defconfig
@@ -83,18 +83,14 @@ CONFIG_CRYPTO_CCM=y
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CTS=y
-CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_LRW=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_XTS=y
-CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=y
CONFIG_CRYPTO_MD4=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_SHA1=y
-CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_ARC4=y
CONFIG_CRYPTO_BLOWFISH=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/44x/sequoia_defconfig b/arch/powerpc/configs/44x/sequoia_defconfig
index b3792fd8111d..1e04122912f3 100644
--- a/arch/powerpc/configs/44x/sequoia_defconfig
+++ b/arch/powerpc/configs/44x/sequoia_defconfig
@@ -67,4 +67,3 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/44x/taishan_defconfig b/arch/powerpc/configs/44x/taishan_defconfig
index ff6f86241418..42cc7b4ed95f 100644
--- a/arch/powerpc/configs/44x/taishan_defconfig
+++ b/arch/powerpc/configs/44x/taishan_defconfig
@@ -61,4 +61,3 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/44x/virtex5_defconfig b/arch/powerpc/configs/44x/virtex5_defconfig
index ce052064bcbb..99cc3dc02df1 100644
--- a/arch/powerpc/configs/44x/virtex5_defconfig
+++ b/arch/powerpc/configs/44x/virtex5_defconfig
@@ -40,9 +40,9 @@ CONFIG_NETDEVICES=y
CONFIG_SERIO_XILINX_XPS_PS2=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_UARTLITE=y
CONFIG_SERIAL_UARTLITE_CONSOLE=y
-CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_XILINX_HWICAP=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_SYSFS=y
@@ -73,4 +73,3 @@ CONFIG_FONT_8x16=y
CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_KERNEL=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/44x/warp_defconfig b/arch/powerpc/configs/44x/warp_defconfig
index ab932488e68b..b5c866073efd 100644
--- a/arch/powerpc/configs/44x/warp_defconfig
+++ b/arch/powerpc/configs/44x/warp_defconfig
@@ -97,4 +97,3 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DETECT_HUNG_TASK=y
# CONFIG_SCHED_DEBUG is not set
# CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/52xx/cm5200_defconfig b/arch/powerpc/configs/52xx/cm5200_defconfig
index c1faac800806..73948e88ac82 100644
--- a/arch/powerpc/configs/52xx/cm5200_defconfig
+++ b/arch/powerpc/configs/52xx/cm5200_defconfig
@@ -77,4 +77,3 @@ CONFIG_DETECT_HUNG_TASK=y
# CONFIG_DEBUG_BUGVERBOSE is not set
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/52xx/lite5200b_defconfig b/arch/powerpc/configs/52xx/lite5200b_defconfig
index 9493b02ac660..6fc7f786c83c 100644
--- a/arch/powerpc/configs/52xx/lite5200b_defconfig
+++ b/arch/powerpc/configs/52xx/lite5200b_defconfig
@@ -14,6 +14,7 @@ CONFIG_PPC_MPC52xx=y
CONFIG_PPC_MPC5200_SIMPLE=y
CONFIG_PPC_LITE5200=y
# CONFIG_PPC_PMAC is not set
+CONFIG_GEN_RTC=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
@@ -44,7 +45,6 @@ CONFIG_SERIAL_MPC52xx=y
CONFIG_SERIAL_MPC52xx_CONSOLE=y
CONFIG_SERIAL_MPC52xx_CONSOLE_BAUD=115200
# CONFIG_HW_RANDOM is not set
-CONFIG_GEN_RTC=y
CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MPC=y
@@ -62,4 +62,3 @@ CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_INFO=y
CONFIG_DETECT_HUNG_TASK=y
# CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/52xx/motionpro_defconfig b/arch/powerpc/configs/52xx/motionpro_defconfig
index fe8126bc1655..ae2a1f74103b 100644
--- a/arch/powerpc/configs/52xx/motionpro_defconfig
+++ b/arch/powerpc/configs/52xx/motionpro_defconfig
@@ -41,16 +41,16 @@ CONFIG_ATA=y
CONFIG_PATA_MPC52xx=y
CONFIG_NETDEVICES=y
CONFIG_FEC_MPC52xx=y
-CONFIG_MARVELL_PHY=y
+CONFIG_MDIO_BITBANG=y
+CONFIG_BROADCOM_PHY=y
+CONFIG_CICADA_PHY=y
CONFIG_DAVICOM_PHY=y
-CONFIG_QSEMI_PHY=y
+CONFIG_ICPLUS_PHY=y
CONFIG_LXT_PHY=y
-CONFIG_CICADA_PHY=y
-CONFIG_VITESSE_PHY=y
+CONFIG_MARVELL_PHY=y
+CONFIG_QSEMI_PHY=y
CONFIG_SMSC_PHY=y
-CONFIG_BROADCOM_PHY=y
-CONFIG_ICPLUS_PHY=y
-CONFIG_MDIO_BITBANG=y
+CONFIG_VITESSE_PHY=y
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
@@ -90,4 +90,3 @@ CONFIG_DETECT_HUNG_TASK=y
# CONFIG_DEBUG_BUGVERBOSE is not set
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/52xx/tqm5200_defconfig b/arch/powerpc/configs/52xx/tqm5200_defconfig
index b8b316b884aa..0777e6efd22d 100644
--- a/arch/powerpc/configs/52xx/tqm5200_defconfig
+++ b/arch/powerpc/configs/52xx/tqm5200_defconfig
@@ -48,7 +48,6 @@ CONFIG_PATA_PLATFORM=y
CONFIG_NETDEVICES=y
CONFIG_FEC_MPC52xx=y
CONFIG_LXT_PHY=y
-CONFIG_FIXED_PHY=y
CONFIG_SERIAL_MPC52xx=y
CONFIG_SERIAL_MPC52xx_CONSOLE=y
CONFIG_SERIAL_MPC52xx_CONSOLE_BAUD=115200
@@ -92,4 +91,3 @@ CONFIG_DETECT_HUNG_TASK=y
# CONFIG_DEBUG_BUGVERBOSE is not set
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/83xx/asp8347_defconfig b/arch/powerpc/configs/83xx/asp8347_defconfig
index b60cac088a7b..dd884df32dfd 100644
--- a/arch/powerpc/configs/83xx/asp8347_defconfig
+++ b/arch/powerpc/configs/83xx/asp8347_defconfig
@@ -42,7 +42,6 @@ CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=32768
CONFIG_NETDEVICES=y
CONFIG_GIANFAR=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -71,4 +70,3 @@ CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_PCBC=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/83xx/kmeter1_defconfig b/arch/powerpc/configs/83xx/kmeter1_defconfig
index 9547dcdd6489..d21b5cb365f2 100644
--- a/arch/powerpc/configs/83xx/kmeter1_defconfig
+++ b/arch/powerpc/configs/83xx/kmeter1_defconfig
@@ -55,7 +55,6 @@ CONFIG_HDLC=y
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
-# CONFIG_DEVKMEM is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_HW_RANDOM=y
diff --git a/arch/powerpc/configs/83xx/mpc8313_rdb_defconfig b/arch/powerpc/configs/83xx/mpc8313_rdb_defconfig
index 80aa844c1428..1f69f4edf074 100644
--- a/arch/powerpc/configs/83xx/mpc8313_rdb_defconfig
+++ b/arch/powerpc/configs/83xx/mpc8313_rdb_defconfig
@@ -48,8 +48,6 @@ CONFIG_NETDEVICES=y
CONFIG_GIANFAR=y
CONFIG_E100=y
CONFIG_CICADA_PHY=y
-CONFIG_FIXED_PHY=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -87,4 +85,3 @@ CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_CRYPTO_PCBC=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/83xx/mpc8315_rdb_defconfig b/arch/powerpc/configs/83xx/mpc8315_rdb_defconfig
index d89d13bc6901..797fc3ffddee 100644
--- a/arch/powerpc/configs/83xx/mpc8315_rdb_defconfig
+++ b/arch/powerpc/configs/83xx/mpc8315_rdb_defconfig
@@ -47,7 +47,6 @@ CONFIG_MD_RAID1=y
CONFIG_NETDEVICES=y
CONFIG_GIANFAR=y
CONFIG_E100=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -85,4 +84,3 @@ CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_CRYPTO_PCBC=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/83xx/mpc832x_mds_defconfig b/arch/powerpc/configs/83xx/mpc832x_mds_defconfig
index e789518a2881..4f914906ee4b 100644
--- a/arch/powerpc/configs/83xx/mpc832x_mds_defconfig
+++ b/arch/powerpc/configs/83xx/mpc832x_mds_defconfig
@@ -14,7 +14,6 @@ CONFIG_PARTITION_ADVANCED=y
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_83xx=y
CONFIG_MPC832x_MDS=y
-CONFIG_QUICC_ENGINE=y
CONFIG_MATH_EMULATION=y
CONFIG_PCI=y
CONFIG_NET=y
@@ -36,7 +35,6 @@ CONFIG_SCSI=y
CONFIG_NETDEVICES=y
CONFIG_UCC_GETH=y
CONFIG_DAVICOM_PHY=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -50,6 +48,7 @@ CONFIG_I2C_MPC=y
CONFIG_WATCHDOG=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_DS1374=y
+CONFIG_QUICC_ENGINE=y
CONFIG_EXT2_FS=y
CONFIG_EXT4_FS=y
CONFIG_PROC_KCORE=y
@@ -59,4 +58,3 @@ CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_PCBC=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/83xx/mpc832x_rdb_defconfig b/arch/powerpc/configs/83xx/mpc832x_rdb_defconfig
index 917a49ca2bd1..a484eb8401e8 100644
--- a/arch/powerpc/configs/83xx/mpc832x_rdb_defconfig
+++ b/arch/powerpc/configs/83xx/mpc832x_rdb_defconfig
@@ -14,7 +14,7 @@ CONFIG_LDM_PARTITION=y
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_83xx=y
CONFIG_MPC832x_RDB=y
-CONFIG_QUICC_ENGINE=y
+CONFIG_GEN_RTC=y
CONFIG_MATH_EMULATION=y
CONFIG_PCI=y
CONFIG_NET=y
@@ -38,7 +38,6 @@ CONFIG_NETDEVICES=y
CONFIG_UCC_GETH=y
CONFIG_E1000=y
CONFIG_ICPLUS_PHY=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -46,7 +45,6 @@ CONFIG_ICPLUS_PHY=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_HW_RANDOM=y
-CONFIG_GEN_RTC=y
CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MPC=y
@@ -62,6 +60,7 @@ CONFIG_USB_OHCI_HCD_PPC_OF_BE=y
CONFIG_USB_STORAGE=y
CONFIG_MMC=y
CONFIG_MMC_SPI=y
+CONFIG_QUICC_ENGINE=y
CONFIG_EXT2_FS=y
CONFIG_EXT4_FS=y
CONFIG_MSDOS_FS=y
@@ -78,4 +77,3 @@ CONFIG_NLS_ISO8859_1=y
CONFIG_CRC_T10DIF=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_PCBC=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/83xx/mpc834x_itx_defconfig b/arch/powerpc/configs/83xx/mpc834x_itx_defconfig
index 00f636e95cc8..37f4d93b3f81 100644
--- a/arch/powerpc/configs/83xx/mpc834x_itx_defconfig
+++ b/arch/powerpc/configs/83xx/mpc834x_itx_defconfig
@@ -49,7 +49,6 @@ CONFIG_MD_RAID1=y
CONFIG_NETDEVICES=y
CONFIG_GIANFAR=y
CONFIG_CICADA_PHY=y
-CONFIG_FIXED_PHY=y
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
@@ -84,4 +83,3 @@ CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
CONFIG_CRC_T10DIF=y
CONFIG_CRYPTO_PCBC=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/83xx/mpc834x_itxgp_defconfig b/arch/powerpc/configs/83xx/mpc834x_itxgp_defconfig
index a539d44d1dba..7adb6708a761 100644
--- a/arch/powerpc/configs/83xx/mpc834x_itxgp_defconfig
+++ b/arch/powerpc/configs/83xx/mpc834x_itxgp_defconfig
@@ -75,4 +75,3 @@ CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
CONFIG_CRC_T10DIF=y
CONFIG_CRYPTO_PCBC=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/83xx/mpc834x_mds_defconfig b/arch/powerpc/configs/83xx/mpc834x_mds_defconfig
index 9f0ddc830c82..d7ce3551529d 100644
--- a/arch/powerpc/configs/83xx/mpc834x_mds_defconfig
+++ b/arch/powerpc/configs/83xx/mpc834x_mds_defconfig
@@ -35,7 +35,6 @@ CONFIG_NETDEVICES=y
CONFIG_GIANFAR=y
CONFIG_E100=y
CONFIG_MARVELL_PHY=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -58,4 +57,3 @@ CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_PCBC=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/83xx/mpc836x_mds_defconfig b/arch/powerpc/configs/83xx/mpc836x_mds_defconfig
index ceed4c1f0ab5..92134cee3f37 100644
--- a/arch/powerpc/configs/83xx/mpc836x_mds_defconfig
+++ b/arch/powerpc/configs/83xx/mpc836x_mds_defconfig
@@ -14,7 +14,6 @@ CONFIG_PARTITION_ADVANCED=y
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_83xx=y
CONFIG_MPC836x_MDS=y
-CONFIG_QUICC_ENGINE=y
CONFIG_PCI=y
CONFIG_NET=y
CONFIG_PACKET=y
@@ -41,7 +40,6 @@ CONFIG_SCSI=y
CONFIG_NETDEVICES=y
CONFIG_UCC_GETH=y
CONFIG_MARVELL_PHY=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -55,6 +53,7 @@ CONFIG_I2C_MPC=y
CONFIG_WATCHDOG=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_DS1374=y
+CONFIG_QUICC_ENGINE=y
CONFIG_EXT2_FS=y
CONFIG_EXT4_FS=y
CONFIG_PROC_KCORE=y
@@ -64,4 +63,3 @@ CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_PCBC=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/83xx/mpc836x_rdk_defconfig b/arch/powerpc/configs/83xx/mpc836x_rdk_defconfig
index a6819bf3ef5e..97f7ea5f205f 100644
--- a/arch/powerpc/configs/83xx/mpc836x_rdk_defconfig
+++ b/arch/powerpc/configs/83xx/mpc836x_rdk_defconfig
@@ -12,7 +12,6 @@ CONFIG_PARTITION_ADVANCED=y
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_83xx=y
CONFIG_MPC836x_RDK=y
-CONFIG_QUICC_ENGINE=y
CONFIG_QE_GPIO=y
CONFIG_PCI=y
CONFIG_NET=y
@@ -39,11 +38,9 @@ CONFIG_BLK_DEV_RAM_SIZE=32768
CONFIG_NETDEVICES=y
CONFIG_UCC_GETH=y
CONFIG_BROADCOM_PHY=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
-# CONFIG_DEVKMEM is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_QE=y
@@ -63,6 +60,7 @@ CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_USB_SUPPORT is not set
+CONFIG_QUICC_ENGINE=y
CONFIG_EXT2_FS=y
CONFIG_EXT4_FS=y
CONFIG_PROC_KCORE=y
@@ -72,4 +70,3 @@ CONFIG_NFS_FS=y
CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
CONFIG_PPC_EARLY_DEBUG=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/83xx/mpc837x_mds_defconfig b/arch/powerpc/configs/83xx/mpc837x_mds_defconfig
index 4bd1992e4d98..ee7510a33d06 100644
--- a/arch/powerpc/configs/83xx/mpc837x_mds_defconfig
+++ b/arch/powerpc/configs/83xx/mpc837x_mds_defconfig
@@ -11,6 +11,7 @@ CONFIG_PARTITION_ADVANCED=y
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_83xx=y
CONFIG_MPC837x_MDS=y
+CONFIG_GEN_RTC=y
CONFIG_PCI=y
CONFIG_NET=y
CONFIG_PACKET=y
@@ -35,7 +36,6 @@ CONFIG_SATA_FSL=y
CONFIG_NETDEVICES=y
CONFIG_GIANFAR=y
CONFIG_MARVELL_PHY=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -43,7 +43,6 @@ CONFIG_MARVELL_PHY=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
# CONFIG_HW_RANDOM is not set
-CONFIG_GEN_RTC=y
CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MPC=y
@@ -58,4 +57,3 @@ CONFIG_ROOT_NFS=y
CONFIG_CRC_T10DIF=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_PCBC=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/83xx/mpc837x_rdb_defconfig b/arch/powerpc/configs/83xx/mpc837x_rdb_defconfig
index 2d4bb63882b8..8966a9af4230 100644
--- a/arch/powerpc/configs/83xx/mpc837x_rdb_defconfig
+++ b/arch/powerpc/configs/83xx/mpc837x_rdb_defconfig
@@ -11,6 +11,7 @@ CONFIG_PARTITION_ADVANCED=y
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_83xx=y
CONFIG_MPC837x_RDB=y
+CONFIG_GEN_RTC=y
CONFIG_PCI=y
CONFIG_NET=y
CONFIG_PACKET=y
@@ -41,9 +42,7 @@ CONFIG_MD_RAID456=y
CONFIG_NETDEVICES=y
CONFIG_GIANFAR=y
CONFIG_MARVELL_PHY=y
-CONFIG_FIXED_PHY=y
CONFIG_INPUT_FF_MEMLESS=m
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -51,7 +50,6 @@ CONFIG_INPUT_FF_MEMLESS=m
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
# CONFIG_HW_RANDOM is not set
-CONFIG_GEN_RTC=y
CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MPC=y
@@ -86,4 +84,3 @@ CONFIG_CRC_T10DIF=y
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_PCBC=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/83xx/sbc834x_defconfig b/arch/powerpc/configs/83xx/sbc834x_defconfig
index b3380dbd1925..7d74699334da 100644
--- a/arch/powerpc/configs/83xx/sbc834x_defconfig
+++ b/arch/powerpc/configs/83xx/sbc834x_defconfig
@@ -11,6 +11,7 @@ CONFIG_MODULE_UNLOAD=y
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_83xx=y
CONFIG_SBC834x=y
+CONFIG_GEN_RTC=y
CONFIG_PCI=y
CONFIG_NET=y
CONFIG_PACKET=y
@@ -41,7 +42,6 @@ CONFIG_BLK_DEV_SD=y
CONFIG_NETDEVICES=y
CONFIG_GIANFAR=y
CONFIG_BROADCOM_PHY=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -52,7 +52,6 @@ CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=2
CONFIG_SERIAL_8250_RUNTIME_UARTS=2
# CONFIG_HW_RANDOM is not set
-CONFIG_GEN_RTC=y
CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MPC=y
@@ -72,5 +71,4 @@ CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_PCBC=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/powerpc/configs/85xx/ge_imp3a_defconfig b/arch/powerpc/configs/85xx/ge_imp3a_defconfig
index a917f7afb4f9..dd98f43b2fb8 100644
--- a/arch/powerpc/configs/85xx/ge_imp3a_defconfig
+++ b/arch/powerpc/configs/85xx/ge_imp3a_defconfig
@@ -22,7 +22,6 @@ CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_GE_IMP3A=y
-CONFIG_QUICC_ENGINE=y
CONFIG_QE_GPIO=y
CONFIG_CPM2=y
CONFIG_HIGHMEM=y
@@ -161,6 +160,7 @@ CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_RX8581=y
CONFIG_DMADEVICES=y
CONFIG_FSL_DMA=y
+CONFIG_QUICC_ENGINE=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
@@ -233,5 +233,4 @@ CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_DEV_TALITOS=y
diff --git a/arch/powerpc/configs/85xx/ksi8560_defconfig b/arch/powerpc/configs/85xx/ksi8560_defconfig
index bd814dfb0bbd..9ce6f48cfb61 100644
--- a/arch/powerpc/configs/85xx/ksi8560_defconfig
+++ b/arch/powerpc/configs/85xx/ksi8560_defconfig
@@ -8,6 +8,7 @@ CONFIG_PARTITION_ADVANCED=y
# CONFIG_MSDOS_PARTITION is not set
CONFIG_KSI8560=y
CONFIG_CPM2=y
+CONFIG_GEN_RTC=y
CONFIG_HIGHMEM=y
CONFIG_BINFMT_MISC=y
CONFIG_MATH_EMULATION=y
@@ -39,14 +40,12 @@ CONFIG_FS_ENET=y
CONFIG_FS_ENET_MDIO_FCC=y
CONFIG_GIANFAR=y
CONFIG_MARVELL_PHY=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
CONFIG_SERIAL_CPM=y
CONFIG_SERIAL_CPM_CONSOLE=y
-CONFIG_GEN_RTC=y
CONFIG_EXT2_FS=y
CONFIG_EXT4_FS=y
CONFIG_PROC_KCORE=y
@@ -57,4 +56,3 @@ CONFIG_DEBUG_FS=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEBUG_MUTEXES=y
# CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/85xx/mpc8540_ads_defconfig b/arch/powerpc/configs/85xx/mpc8540_ads_defconfig
index 32af10def641..5fbc3f904046 100644
--- a/arch/powerpc/configs/85xx/mpc8540_ads_defconfig
+++ b/arch/powerpc/configs/85xx/mpc8540_ads_defconfig
@@ -9,6 +9,7 @@ CONFIG_EXPERT=y
CONFIG_PARTITION_ADVANCED=y
# CONFIG_MSDOS_PARTITION is not set
CONFIG_MPC8540_ADS=y
+CONFIG_GEN_RTC=y
CONFIG_BINFMT_MISC=y
CONFIG_MATH_EMULATION=y
# CONFIG_SECCOMP is not set
@@ -30,7 +31,6 @@ CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=32768
CONFIG_NETDEVICES=y
CONFIG_GIANFAR=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -38,7 +38,6 @@ CONFIG_GIANFAR=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
# CONFIG_HW_RANDOM is not set
-CONFIG_GEN_RTC=y
CONFIG_EXT2_FS=y
CONFIG_EXT4_FS=y
CONFIG_PROC_KCORE=y
@@ -47,4 +46,3 @@ CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEBUG_MUTEXES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/85xx/mpc8560_ads_defconfig b/arch/powerpc/configs/85xx/mpc8560_ads_defconfig
index a52b2170ee33..ff981d7905c7 100644
--- a/arch/powerpc/configs/85xx/mpc8560_ads_defconfig
+++ b/arch/powerpc/configs/85xx/mpc8560_ads_defconfig
@@ -7,6 +7,7 @@ CONFIG_EXPERT=y
CONFIG_PARTITION_ADVANCED=y
# CONFIG_MSDOS_PARTITION is not set
CONFIG_MPC8560_ADS=y
+CONFIG_GEN_RTC=y
CONFIG_BINFMT_MISC=y
CONFIG_MATH_EMULATION=y
# CONFIG_SECCOMP is not set
@@ -32,16 +33,14 @@ CONFIG_FS_ENET=y
# CONFIG_FS_ENET_HAS_SCC is not set
CONFIG_GIANFAR=y
CONFIG_E1000=y
-CONFIG_MARVELL_PHY=y
CONFIG_DAVICOM_PHY=y
-# CONFIG_INPUT_MOUSEDEV is not set
+CONFIG_MARVELL_PHY=y
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
CONFIG_SERIAL_CPM=y
CONFIG_SERIAL_CPM_CONSOLE=y
-CONFIG_GEN_RTC=y
CONFIG_EXT2_FS=y
CONFIG_EXT4_FS=y
CONFIG_PROC_KCORE=y
@@ -50,4 +49,3 @@ CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEBUG_MUTEXES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/85xx/mpc85xx_cds_defconfig b/arch/powerpc/configs/85xx/mpc85xx_cds_defconfig
index 002bb48abaa3..974f0706d777 100644
--- a/arch/powerpc/configs/85xx/mpc85xx_cds_defconfig
+++ b/arch/powerpc/configs/85xx/mpc85xx_cds_defconfig
@@ -9,6 +9,7 @@ CONFIG_EXPERT=y
CONFIG_PARTITION_ADVANCED=y
# CONFIG_MSDOS_PARTITION is not set
CONFIG_MPC85xx_CDS=y
+CONFIG_GEN_RTC=y
CONFIG_BINFMT_MISC=y
CONFIG_MATH_EMULATION=y
# CONFIG_SECCOMP is not set
@@ -35,7 +36,6 @@ CONFIG_BLK_DEV_VIA82CXXX=y
CONFIG_NETDEVICES=y
CONFIG_GIANFAR=y
CONFIG_E1000=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -43,7 +43,6 @@ CONFIG_E1000=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
# CONFIG_HW_RANDOM is not set
-CONFIG_GEN_RTC=y
CONFIG_EXT2_FS=y
CONFIG_EXT4_FS=y
CONFIG_PROC_KCORE=y
@@ -52,4 +51,3 @@ CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEBUG_MUTEXES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/85xx/sbc8548_defconfig b/arch/powerpc/configs/85xx/sbc8548_defconfig
index 97ae02377cf3..7e3e84a842e4 100644
--- a/arch/powerpc/configs/85xx/sbc8548_defconfig
+++ b/arch/powerpc/configs/85xx/sbc8548_defconfig
@@ -6,6 +6,7 @@ CONFIG_EXPERT=y
CONFIG_SLAB=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_SBC8548=y
+CONFIG_GEN_RTC=y
CONFIG_BINFMT_MISC=y
CONFIG_MATH_EMULATION=y
# CONFIG_SECCOMP is not set
@@ -36,7 +37,6 @@ CONFIG_BLK_DEV_RAM=y
CONFIG_NETDEVICES=y
CONFIG_GIANFAR=y
CONFIG_BROADCOM_PHY=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -44,10 +44,8 @@ CONFIG_BROADCOM_PHY=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
# CONFIG_HW_RANDOM is not set
-CONFIG_GEN_RTC=y
# CONFIG_USB_SUPPORT is not set
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/85xx/socrates_defconfig b/arch/powerpc/configs/85xx/socrates_defconfig
index 13579cb30539..6106fadbbd8b 100644
--- a/arch/powerpc/configs/85xx/socrates_defconfig
+++ b/arch/powerpc/configs/85xx/socrates_defconfig
@@ -42,8 +42,6 @@ CONFIG_BLK_DEV_SD=y
CONFIG_NETDEVICES=y
CONFIG_GIANFAR=y
CONFIG_MARVELL_PHY=y
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=800
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=480
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -86,4 +84,3 @@ CONFIG_CRAMFS=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
CONFIG_FONTS=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/85xx/stx_gp3_defconfig b/arch/powerpc/configs/85xx/stx_gp3_defconfig
index 384926f3ce1d..5b9cc01b9098 100644
--- a/arch/powerpc/configs/85xx/stx_gp3_defconfig
+++ b/arch/powerpc/configs/85xx/stx_gp3_defconfig
@@ -39,8 +39,6 @@ CONFIG_SCSI_CONSTANTS=y
CONFIG_NETDEVICES=y
CONFIG_GIANFAR=y
CONFIG_MARVELL_PHY=y
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1280
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=1024
CONFIG_INPUT_JOYDEV=m
CONFIG_INPUT_EVDEV=m
# CONFIG_VT is not set
@@ -68,4 +66,3 @@ CONFIG_CRC_T10DIF=m
CONFIG_DETECT_HUNG_TASK=y
# CONFIG_DEBUG_BUGVERBOSE is not set
CONFIG_BDI_SWITCH=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/85xx/tqm8540_defconfig b/arch/powerpc/configs/85xx/tqm8540_defconfig
index 908f3885f4a5..98982a0e82d8 100644
--- a/arch/powerpc/configs/85xx/tqm8540_defconfig
+++ b/arch/powerpc/configs/85xx/tqm8540_defconfig
@@ -9,6 +9,7 @@ CONFIG_EXPERT=y
CONFIG_PARTITION_ADVANCED=y
# CONFIG_MSDOS_PARTITION is not set
CONFIG_TQM8540=y
+CONFIG_GEN_RTC=y
CONFIG_MATH_EMULATION=y
CONFIG_PCI=y
CONFIG_NET=y
@@ -35,14 +36,12 @@ CONFIG_BLK_DEV_VIA82CXXX=y
CONFIG_NETDEVICES=y
CONFIG_GIANFAR=y
CONFIG_E100=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_GEN_RTC=y
CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MPC=y
@@ -56,4 +55,3 @@ CONFIG_JFFS2_FS=y
CONFIG_CRAMFS=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/85xx/tqm8541_defconfig b/arch/powerpc/configs/85xx/tqm8541_defconfig
index f47e57610b7c..a6e21db1dafe 100644
--- a/arch/powerpc/configs/85xx/tqm8541_defconfig
+++ b/arch/powerpc/configs/85xx/tqm8541_defconfig
@@ -9,6 +9,7 @@ CONFIG_EXPERT=y
CONFIG_PARTITION_ADVANCED=y
# CONFIG_MSDOS_PARTITION is not set
CONFIG_TQM8541=y
+CONFIG_GEN_RTC=y
CONFIG_MATH_EMULATION=y
CONFIG_PCI=y
CONFIG_NET=y
@@ -35,7 +36,6 @@ CONFIG_BLK_DEV_VIA82CXXX=y
CONFIG_NETDEVICES=y
CONFIG_GIANFAR=y
CONFIG_E100=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -44,7 +44,6 @@ CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_CPM=y
CONFIG_SERIAL_CPM_CONSOLE=y
-CONFIG_GEN_RTC=y
CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MPC=y
@@ -58,4 +57,3 @@ CONFIG_JFFS2_FS=y
CONFIG_CRAMFS=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/85xx/tqm8548_defconfig b/arch/powerpc/configs/85xx/tqm8548_defconfig
index 42f5d0a7698e..2697e4e8a761 100644
--- a/arch/powerpc/configs/85xx/tqm8548_defconfig
+++ b/arch/powerpc/configs/85xx/tqm8548_defconfig
@@ -43,7 +43,6 @@ CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=32768
CONFIG_NETDEVICES=y
CONFIG_GIANFAR=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -66,4 +65,3 @@ CONFIG_ROOT_NFS=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEBUG_MUTEXES=y
# CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/85xx/tqm8555_defconfig b/arch/powerpc/configs/85xx/tqm8555_defconfig
index 71552b7929cd..ca1de3979474 100644
--- a/arch/powerpc/configs/85xx/tqm8555_defconfig
+++ b/arch/powerpc/configs/85xx/tqm8555_defconfig
@@ -9,6 +9,7 @@ CONFIG_EXPERT=y
CONFIG_PARTITION_ADVANCED=y
# CONFIG_MSDOS_PARTITION is not set
CONFIG_TQM8555=y
+CONFIG_GEN_RTC=y
CONFIG_MATH_EMULATION=y
CONFIG_PCI=y
CONFIG_NET=y
@@ -35,7 +36,6 @@ CONFIG_BLK_DEV_VIA82CXXX=y
CONFIG_NETDEVICES=y
CONFIG_GIANFAR=y
CONFIG_E100=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -44,7 +44,6 @@ CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_CPM=y
CONFIG_SERIAL_CPM_CONSOLE=y
-CONFIG_GEN_RTC=y
CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MPC=y
@@ -58,4 +57,3 @@ CONFIG_JFFS2_FS=y
CONFIG_CRAMFS=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/85xx/tqm8560_defconfig b/arch/powerpc/configs/85xx/tqm8560_defconfig
index 25aac973d6d7..ca3b8c8ef30f 100644
--- a/arch/powerpc/configs/85xx/tqm8560_defconfig
+++ b/arch/powerpc/configs/85xx/tqm8560_defconfig
@@ -9,6 +9,7 @@ CONFIG_EXPERT=y
CONFIG_PARTITION_ADVANCED=y
# CONFIG_MSDOS_PARTITION is not set
CONFIG_TQM8560=y
+CONFIG_GEN_RTC=y
CONFIG_MATH_EMULATION=y
CONFIG_PCI=y
CONFIG_NET=y
@@ -35,7 +36,6 @@ CONFIG_BLK_DEV_VIA82CXXX=y
CONFIG_NETDEVICES=y
CONFIG_GIANFAR=y
CONFIG_E100=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -44,7 +44,6 @@ CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_CPM=y
CONFIG_SERIAL_CPM_CONSOLE=y
-CONFIG_GEN_RTC=y
CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MPC=y
@@ -58,4 +57,3 @@ CONFIG_JFFS2_FS=y
CONFIG_CRAMFS=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/85xx/xes_mpc85xx_defconfig b/arch/powerpc/configs/85xx/xes_mpc85xx_defconfig
index 72900b84d3e0..6531139a8a8d 100644
--- a/arch/powerpc/configs/85xx/xes_mpc85xx_defconfig
+++ b/arch/powerpc/configs/85xx/xes_mpc85xx_defconfig
@@ -54,7 +54,6 @@ CONFIG_IP_PIMSM_V2=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-CONFIG_IPV6=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
CONFIG_MTD_REDBOOT_PARTS=y
@@ -86,7 +85,6 @@ CONFIG_DUMMY=y
CONFIG_GIANFAR=y
CONFIG_E1000=y
CONFIG_BROADCOM_PHY=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
CONFIG_SERIO_LIBPS2=y
@@ -107,8 +105,8 @@ CONFIG_SENSORS_LM90=y
CONFIG_WATCHDOG=y
CONFIG_USB=y
CONFIG_USB_MON=y
-CONFIG_USB_ISP1760=y
CONFIG_USB_STORAGE=y
+CONFIG_USB_ISP1760=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_PCA955X=y
@@ -143,4 +141,3 @@ CONFIG_DETECT_HUNG_TASK=y
# CONFIG_DEBUG_BUGVERBOSE is not set
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_MD5=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/adder875_defconfig b/arch/powerpc/configs/adder875_defconfig
index 6a3f825452e9..935ea3ade7de 100644
--- a/arch/powerpc/configs/adder875_defconfig
+++ b/arch/powerpc/configs/adder875_defconfig
@@ -12,6 +12,7 @@ CONFIG_PARTITION_ADVANCED=y
# CONFIG_IOSCHED_CFQ is not set
CONFIG_PPC_ADDER875=y
CONFIG_8xx_COPYBACK=y
+CONFIG_GEN_RTC=y
CONFIG_HZ_1000=y
# CONFIG_SECCOMP is not set
CONFIG_NET=y
@@ -41,7 +42,6 @@ CONFIG_DAVICOM_PHY=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_CPM=y
CONFIG_SERIAL_CPM_CONSOLE=y
-CONFIG_GEN_RTC=y
# CONFIG_HWMON is not set
CONFIG_THERMAL=y
# CONFIG_USB_SUPPORT is not set
diff --git a/arch/powerpc/configs/amigaone_defconfig b/arch/powerpc/configs/amigaone_defconfig
index 8d3e3c41258d..12f397d403c6 100644
--- a/arch/powerpc/configs/amigaone_defconfig
+++ b/arch/powerpc/configs/amigaone_defconfig
@@ -45,7 +45,6 @@ CONFIG_PARPORT_PC_FIFO=y
CONFIG_BLK_DEV_FD=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
-CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
CONFIG_BLK_DEV_SR=y
@@ -120,5 +119,4 @@ CONFIG_XMON=y
CONFIG_XMON_DEFAULT=y
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_PCBC=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/powerpc/configs/be.config b/arch/powerpc/configs/be.config
new file mode 100644
index 000000000000..c5cdc99a6530
--- /dev/null
+++ b/arch/powerpc/configs/be.config
@@ -0,0 +1 @@
+CONFIG_CPU_BIG_ENDIAN=y
diff --git a/arch/powerpc/configs/c2k_defconfig b/arch/powerpc/configs/c2k_defconfig
index 7c9d95370150..f1552af9eecc 100644
--- a/arch/powerpc/configs/c2k_defconfig
+++ b/arch/powerpc/configs/c2k_defconfig
@@ -27,6 +27,7 @@ CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
CONFIG_CPU_FREQ_GOV_ONDEMAND=m
+CONFIG_GEN_RTC=y
CONFIG_HIGHMEM=y
CONFIG_PREEMPT_VOLUNTARY=y
CONFIG_BINFMT_MISC=y
@@ -197,7 +198,6 @@ CONFIG_TUN=m
# CONFIG_ATM_DRIVERS is not set
CONFIG_MV643XX_ETH=y
CONFIG_VITESSE_PHY=y
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -209,7 +209,6 @@ CONFIG_SERIAL_NONSTANDARD=y
CONFIG_SERIAL_MPSC=y
CONFIG_SERIAL_MPSC_CONSOLE=y
CONFIG_NVRAM=m
-CONFIG_GEN_RTC=m
CONFIG_RAW_DRIVER=y
CONFIG_MAX_RAW_DEVS=8192
CONFIG_I2C=m
@@ -390,7 +389,6 @@ CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_DISABLE=y
-CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_SHA1=y
@@ -402,4 +400,3 @@ CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/cell_defconfig b/arch/powerpc/configs/cell_defconfig
index aa564599e368..560a93a84efe 100644
--- a/arch/powerpc/configs/cell_defconfig
+++ b/arch/powerpc/configs/cell_defconfig
@@ -4,7 +4,6 @@ CONFIG_ALTIVEC=y
CONFIG_SMP=y
CONFIG_NR_CPUS=4
CONFIG_SYSVIPC=y
-CONFIG_FHANDLE=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_IKCONFIG=y
@@ -34,10 +33,10 @@ CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
+CONFIG_GEN_RTC=y
CONFIG_BINFMT_MISC=m
CONFIG_IRQ_ALL_CPUS=y
CONFIG_NUMA=y
-CONFIG_MEMORY_HOTREMOVE=y
CONFIG_PPC_64K_PAGES=y
CONFIG_SCHED_SMT=y
CONFIG_PCIEPORTBUS=y
@@ -53,7 +52,6 @@ CONFIG_IP_PNP_RARP=y
CONFIG_NET_IPIP=y
CONFIG_SYN_COOKIES=y
# CONFIG_INET_XFRM_MODE_BEET is not set
-CONFIG_IPV6=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
@@ -141,7 +139,6 @@ CONFIG_SKY2=m
CONFIG_GELIC_NET=m
CONFIG_GELIC_WIRELESS=y
CONFIG_SPIDER_NET=y
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO_I8042 is not set
@@ -149,8 +146,6 @@ CONFIG_SPIDER_NET=y
CONFIG_SERIAL_NONSTANDARD=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_TXX9_NR_UARTS=2
-CONFIG_SERIAL_TXX9_CONSOLE=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_HVC_RTAS=y
CONFIG_IPMI_HANDLER=m
@@ -159,7 +154,6 @@ CONFIG_IPMI_SI=m
CONFIG_IPMI_WATCHDOG=m
CONFIG_IPMI_POWEROFF=m
# CONFIG_HW_RANDOM is not set
-CONFIG_GEN_RTC=y
CONFIG_I2C=y
CONFIG_WATCHDOG=y
# CONFIG_VGA_CONSOLE is not set
@@ -207,7 +201,6 @@ CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
# CONFIG_ENABLE_MUST_CHECK is not set
-CONFIG_DEBUG_FS=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MUTEXES=y
diff --git a/arch/powerpc/configs/chrp32_defconfig b/arch/powerpc/configs/chrp32_defconfig
index 1f6f90cd8aff..a203b1cf67d3 100644
--- a/arch/powerpc/configs/chrp32_defconfig
+++ b/arch/powerpc/configs/chrp32_defconfig
@@ -16,6 +16,7 @@ CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_MAC_PARTITION=y
# CONFIG_PPC_PMAC is not set
+CONFIG_GEN_RTC=y
CONFIG_HIGHMEM=y
CONFIG_BINFMT_MISC=y
CONFIG_IRQ_ALL_CPUS=y
@@ -79,7 +80,6 @@ CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
# CONFIG_HW_RANDOM is not set
CONFIG_NVRAM=y
-CONFIG_GEN_RTC=y
# CONFIG_HWMON is not set
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
@@ -124,5 +124,4 @@ CONFIG_XMON=y
CONFIG_XMON_DEFAULT=y
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_PCBC=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/powerpc/configs/ep8248e_defconfig b/arch/powerpc/configs/ep8248e_defconfig
index 3403b85f9d81..2e6c8a45ae88 100644
--- a/arch/powerpc/configs/ep8248e_defconfig
+++ b/arch/powerpc/configs/ep8248e_defconfig
@@ -70,5 +70,4 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/powerpc/configs/ep88xc_defconfig b/arch/powerpc/configs/ep88xc_defconfig
index 95411aeeeb8d..7cb590e8f8fd 100644
--- a/arch/powerpc/configs/ep88xc_defconfig
+++ b/arch/powerpc/configs/ep88xc_defconfig
@@ -14,6 +14,7 @@ CONFIG_PARTITION_ADVANCED=y
# CONFIG_IOSCHED_CFQ is not set
CONFIG_PPC_EP88XC=y
CONFIG_8xx_COPYBACK=y
+CONFIG_GEN_RTC=y
CONFIG_HZ_100=y
# CONFIG_SECCOMP is not set
CONFIG_NET=y
@@ -45,7 +46,6 @@ CONFIG_LXT_PHY=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_CPM=y
CONFIG_SERIAL_CPM_CONSOLE=y
-CONFIG_GEN_RTC=y
# CONFIG_HWMON is not set
# CONFIG_USB_SUPPORT is not set
# CONFIG_DNOTIFY is not set
diff --git a/arch/powerpc/configs/g5_defconfig b/arch/powerpc/configs/g5_defconfig
index e18f2e06553f..063817fee61c 100644
--- a/arch/powerpc/configs/g5_defconfig
+++ b/arch/powerpc/configs/g5_defconfig
@@ -4,7 +4,6 @@ CONFIG_SMP=y
CONFIG_NR_CPUS=4
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
-CONFIG_FHANDLE=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_IKCONFIG=y
@@ -25,6 +24,7 @@ CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_PMAC64=y
+CONFIG_GEN_RTC=y
CONFIG_KEXEC=y
CONFIG_IRQ_ALL_CPUS=y
CONFIG_PCI_MSI=y
@@ -115,7 +115,6 @@ CONFIG_USB_USBNET=m
# CONFIG_USB_NET_NET1080 is not set
# CONFIG_USB_NET_CDC_SUBSET is not set
# CONFIG_USB_NET_ZAURUS is not set
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_JOYDEV=m
CONFIG_INPUT_EVDEV=y
# CONFIG_KEYBOARD_ATKBD is not set
@@ -123,7 +122,6 @@ CONFIG_INPUT_EVDEV=y
# CONFIG_SERIO_I8042 is not set
# CONFIG_SERIO_SERPORT is not set
# CONFIG_HW_RANDOM is not set
-CONFIG_GEN_RTC=y
CONFIG_RAW_DRIVER=y
CONFIG_I2C_CHARDEV=y
CONFIG_AGP=m
@@ -140,10 +138,11 @@ CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
CONFIG_SOUND=m
CONFIG_SND=m
-CONFIG_SND_SEQUENCER=m
+CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
-CONFIG_SND_SEQUENCER_OSS=y
+CONFIG_SND_SEQUENCER=m
+CONFIG_SND_SEQUENCER_OSS=m
CONFIG_SND_POWERMAC=m
CONFIG_SND_AOA=m
CONFIG_SND_AOA_FABRIC_LAYOUT=m
@@ -213,20 +212,20 @@ CONFIG_USB_SERIAL_CYBERJACK=m
CONFIG_USB_SERIAL_XIRCOM=m
CONFIG_USB_SERIAL_OMNINET=m
CONFIG_USB_APPLEDISPLAY=m
-CONFIG_FS_DAX=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
+CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
-CONFIG_EXT4_FS=y
CONFIG_REISERFS_FS=y
CONFIG_REISERFS_FS_XATTR=y
CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_XFS_FS=m
CONFIG_XFS_POSIX_ACL=y
+CONFIG_FS_DAX=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
@@ -254,14 +253,12 @@ CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_15=y
CONFIG_NLS_UTF8=y
CONFIG_CRC_T10DIF=y
-CONFIG_DEBUG_FS=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_LATENCYTOP=y
CONFIG_BOOTX_TEXT=y
CONFIG_PPC_EARLY_DEBUG=y
-CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_HMAC=y
@@ -276,5 +273,4 @@ CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/powerpc/configs/gamecube_defconfig b/arch/powerpc/configs/gamecube_defconfig
index c0eec4a5df4e..805b0f87653c 100644
--- a/arch/powerpc/configs/gamecube_defconfig
+++ b/arch/powerpc/configs/gamecube_defconfig
@@ -45,7 +45,6 @@ CONFIG_BLK_DEV_RAM_COUNT=2
CONFIG_NETDEVICES=y
# CONFIG_WLAN is not set
CONFIG_INPUT_FF_MEMLESS=m
-# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_JOYDEV=y
CONFIG_INPUT_EVDEV=y
# CONFIG_KEYBOARD_ATKBD is not set
@@ -54,7 +53,6 @@ CONFIG_INPUT_JOYSTICK=y
# CONFIG_SERIO_I8042 is not set
# CONFIG_SERIO_SERPORT is not set
CONFIG_LEGACY_PTY_COUNT=64
-# CONFIG_DEVKMEM is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
CONFIG_FB=y
@@ -66,11 +64,12 @@ CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_CLUT224 is not set
CONFIG_SOUND=y
CONFIG_SND=y
-CONFIG_SND_SEQUENCER=y
+CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
-CONFIG_SND_SEQUENCER_OSS=y
# CONFIG_SND_VERBOSE_PROCFS is not set
+CONFIG_SND_SEQUENCER=y
+CONFIG_SND_SEQUENCER_OSS=y
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_GENERIC=y
diff --git a/arch/powerpc/configs/holly_defconfig b/arch/powerpc/configs/holly_defconfig
index e56e80090529..71d8d2430b6c 100644
--- a/arch/powerpc/configs/holly_defconfig
+++ b/arch/powerpc/configs/holly_defconfig
@@ -11,6 +11,7 @@ CONFIG_PARTITION_ADVANCED=y
# CONFIG_PPC_PMAC is not set
CONFIG_EMBEDDED6xx=y
CONFIG_PPC_HOLLY=y
+CONFIG_GEN_RTC=y
CONFIG_BINFMT_MISC=y
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="console=ttyS0,115200"
@@ -37,7 +38,6 @@ CONFIG_NETDEVICES=y
CONFIG_VORTEX=y
CONFIG_TSI108_ETH=y
CONFIG_PHYLIB=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -49,7 +49,6 @@ CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set
-CONFIG_GEN_RTC=y
CONFIG_EXT2_FS=y
CONFIG_EXT4_FS=y
CONFIG_PROC_KCORE=y
diff --git a/arch/powerpc/configs/linkstation_defconfig b/arch/powerpc/configs/linkstation_defconfig
index b413c19d7031..477794c41d50 100644
--- a/arch/powerpc/configs/linkstation_defconfig
+++ b/arch/powerpc/configs/linkstation_defconfig
@@ -26,7 +26,6 @@ CONFIG_IP_PNP_BOOTP=y
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
CONFIG_NF_CONNTRACK=m
-CONFIG_NF_CT_PROTO_SCTP=m
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
@@ -79,7 +78,6 @@ CONFIG_NET_TULIP=y
CONFIG_TULIP=y
CONFIG_TULIP_MMIO=y
CONFIG_R8169=y
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_EVDEV=m
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -142,4 +140,3 @@ CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_DEFLATE=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/maple_defconfig b/arch/powerpc/configs/maple_defconfig
index c4018179e219..078cdb427fc9 100644
--- a/arch/powerpc/configs/maple_defconfig
+++ b/arch/powerpc/configs/maple_defconfig
@@ -3,7 +3,6 @@ CONFIG_SMP=y
CONFIG_NR_CPUS=4
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
-CONFIG_FHANDLE=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_IKCONFIG=y
@@ -24,6 +23,7 @@ CONFIG_MAC_PARTITION=y
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_MAPLE=y
CONFIG_UDBG_RTAS_CONSOLE=y
+CONFIG_GEN_RTC=y
CONFIG_KEXEC=y
CONFIG_IRQ_ALL_CPUS=y
CONFIG_PCI_MSI=y
@@ -53,9 +53,6 @@ CONFIG_AMD8111_ETH=y
CONFIG_TIGON3=y
CONFIG_E1000=y
CONFIG_USB_PEGASUS=y
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1600
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=1200
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -63,7 +60,6 @@ CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_HVC_RTAS=y
# CONFIG_HW_RANDOM is not set
-CONFIG_GEN_RTC=y
CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_AMD8111=y
@@ -100,8 +96,8 @@ CONFIG_USB_SERIAL_KEYSPAN_USA49W=y
CONFIG_USB_SERIAL_KEYSPAN_USA49WLC=y
CONFIG_USB_SERIAL_TI=m
CONFIG_EXT2_FS=y
-CONFIG_FS_DAX=y
CONFIG_EXT4_FS=y
+CONFIG_FS_DAX=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_PROC_KCORE=y
@@ -127,5 +123,4 @@ CONFIG_BOOTX_TEXT=y
CONFIG_PPC_EARLY_DEBUG=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_PCBC=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/powerpc/configs/mgcoge_defconfig b/arch/powerpc/configs/mgcoge_defconfig
index 197acaa026eb..5d5f08e5b8d9 100644
--- a/arch/powerpc/configs/mgcoge_defconfig
+++ b/arch/powerpc/configs/mgcoge_defconfig
@@ -46,7 +46,6 @@ CONFIG_BLK_DEV_RAM=y
CONFIG_NETDEVICES=y
CONFIG_FS_ENET=y
CONFIG_FS_ENET_MDIO_FCC=y
-CONFIG_FIXED_PHY=y
# CONFIG_WLAN is not set
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
@@ -83,5 +82,4 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_BDI_SWITCH=y
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/powerpc/configs/mpc512x_defconfig b/arch/powerpc/configs/mpc512x_defconfig
index 0b4854cf26cb..10be5773ad5d 100644
--- a/arch/powerpc/configs/mpc512x_defconfig
+++ b/arch/powerpc/configs/mpc512x_defconfig
@@ -12,6 +12,7 @@ CONFIG_PARTITION_ADVANCED=y
# CONFIG_IOSCHED_CFQ is not set
# CONFIG_PPC_CHRP is not set
CONFIG_PPC_MPC512x=y
+CONFIG_MPC512x_LPBFIFO=y
CONFIG_MPC5121_ADS=y
CONFIG_MPC512x_GENERIC=y
CONFIG_PDM360NG=y
@@ -61,25 +62,22 @@ CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_SG=y
CONFIG_NETDEVICES=y
CONFIG_FS_ENET=y
-CONFIG_MARVELL_PHY=y
-CONFIG_DAVICOM_PHY=y
-CONFIG_QSEMI_PHY=y
-CONFIG_LXT_PHY=y
-CONFIG_CICADA_PHY=y
-CONFIG_VITESSE_PHY=y
-CONFIG_SMSC_PHY=y
+CONFIG_MDIO_BITBANG=y
CONFIG_BROADCOM_PHY=y
+CONFIG_CICADA_PHY=y
+CONFIG_DAVICOM_PHY=y
CONFIG_ICPLUS_PHY=y
-CONFIG_REALTEK_PHY=y
+CONFIG_LSI_ET1011C_PHY=y
+CONFIG_LXT_PHY=y
+CONFIG_MARVELL_PHY=y
CONFIG_NATIONAL_PHY=y
+CONFIG_QSEMI_PHY=y
+CONFIG_REALTEK_PHY=y
+CONFIG_SMSC_PHY=y
CONFIG_STE10XP=y
-CONFIG_LSI_ET1011C_PHY=y
-CONFIG_FIXED_PHY=y
-CONFIG_MDIO_BITBANG=y
+CONFIG_VITESSE_PHY=y
# CONFIG_WLAN is not set
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_EVDEV=y
-# CONFIG_DEVKMEM is not set
CONFIG_SERIAL_MPC52xx=y
CONFIG_SERIAL_MPC52xx_CONSOLE=y
CONFIG_SERIAL_MPC52xx_CONSOLE_BAUD=115200
@@ -111,10 +109,9 @@ CONFIG_RTC_DRV_M41T80=y
CONFIG_RTC_DRV_MPC5121=y
CONFIG_DMADEVICES=y
CONFIG_MPC512X_DMA=y
-CONFIG_MPC512x_LPBFIFO=y
-CONFIG_FS_DAX=y
CONFIG_EXT2_FS=y
CONFIG_EXT4_FS=y
+CONFIG_FS_DAX=y
# CONFIG_DNOTIFY is not set
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
@@ -126,5 +123,4 @@ CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/powerpc/configs/mpc5200_defconfig b/arch/powerpc/configs/mpc5200_defconfig
index 88336d0df0d6..7a2b2aa37def 100644
--- a/arch/powerpc/configs/mpc5200_defconfig
+++ b/arch/powerpc/configs/mpc5200_defconfig
@@ -50,7 +50,6 @@ CONFIG_NETDEVICES=y
CONFIG_FEC_MPC52xx=y
CONFIG_AMD_PHY=y
CONFIG_LXT_PHY=y
-CONFIG_FIXED_PHY=y
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -71,12 +70,10 @@ CONFIG_SENSORS_LM87=m
CONFIG_WATCHDOG=y
CONFIG_MFD_SM501=m
CONFIG_DRM=y
-CONFIG_FB=y
CONFIG_FB_FOREIGN_ENDIAN=y
CONFIG_FB_RADEON=y
CONFIG_FB_SM501=m
# CONFIG_VGA_CONSOLE is not set
-CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
CONFIG_SOUND=y
CONFIG_SND=y
@@ -130,4 +127,3 @@ CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DETECT_HUNG_TASK=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/mpc7448_hpc2_defconfig b/arch/powerpc/configs/mpc7448_hpc2_defconfig
index d933326b4cf9..4b14c02b437c 100644
--- a/arch/powerpc/configs/mpc7448_hpc2_defconfig
+++ b/arch/powerpc/configs/mpc7448_hpc2_defconfig
@@ -11,6 +11,7 @@ CONFIG_PARTITION_ADVANCED=y
# CONFIG_PPC_PMAC is not set
CONFIG_EMBEDDED6xx=y
CONFIG_MPC7448HPC2=y
+CONFIG_GEN_RTC=y
CONFIG_BINFMT_MISC=y
# CONFIG_SECCOMP is not set
CONFIG_NET=y
@@ -38,7 +39,6 @@ CONFIG_8139TOO=y
# CONFIG_8139TOO_PIO is not set
CONFIG_TSI108_ETH=y
CONFIG_PHYLIB=y
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -46,7 +46,6 @@ CONFIG_PHYLIB=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
# CONFIG_HW_RANDOM is not set
-CONFIG_GEN_RTC=y
CONFIG_EXT2_FS=y
CONFIG_EXT4_FS=y
CONFIG_PROC_KCORE=y
@@ -54,4 +53,3 @@ CONFIG_TMPFS=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
CONFIG_CRC_T10DIF=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/mpc8272_ads_defconfig b/arch/powerpc/configs/mpc8272_ads_defconfig
index 4cb0f617c0d6..b1e88b64536b 100644
--- a/arch/powerpc/configs/mpc8272_ads_defconfig
+++ b/arch/powerpc/configs/mpc8272_ads_defconfig
@@ -77,5 +77,4 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/powerpc/configs/mpc83xx_defconfig b/arch/powerpc/configs/mpc83xx_defconfig
index 6574477fd726..d1b82035d35f 100644
--- a/arch/powerpc/configs/mpc83xx_defconfig
+++ b/arch/powerpc/configs/mpc83xx_defconfig
@@ -21,7 +21,6 @@ CONFIG_MPC837x_MDS=y
CONFIG_MPC837x_RDB=y
CONFIG_SBC834x=y
CONFIG_ASP834x=y
-CONFIG_QUICC_ENGINE=y
CONFIG_QE_GPIO=y
CONFIG_MATH_EMULATION=y
CONFIG_PCI=y
@@ -60,13 +59,11 @@ CONFIG_SATA_SIL=y
CONFIG_NETDEVICES=y
CONFIG_UCC_GETH=y
CONFIG_GIANFAR=y
-CONFIG_MARVELL_PHY=y
CONFIG_DAVICOM_PHY=y
-CONFIG_VITESSE_PHY=y
CONFIG_ICPLUS_PHY=y
-CONFIG_FIXED_PHY=y
+CONFIG_MARVELL_PHY=y
+CONFIG_VITESSE_PHY=y
CONFIG_INPUT_FF_MEMLESS=m
-# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -99,6 +96,7 @@ CONFIG_USB_EHCI_FSL=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_DS1307=y
CONFIG_RTC_DRV_DS1374=y
+CONFIG_QUICC_ENGINE=y
CONFIG_EXT2_FS=y
CONFIG_EXT4_FS=y
CONFIG_PROC_KCORE=y
@@ -109,7 +107,5 @@ CONFIG_ROOT_NFS=y
CONFIG_CRC_T10DIF=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_PCBC=m
-CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_DEV_TALITOS=y
diff --git a/arch/powerpc/configs/mpc866_ads_defconfig b/arch/powerpc/configs/mpc866_ads_defconfig
index 998454471a48..f1f176c29fa3 100644
--- a/arch/powerpc/configs/mpc866_ads_defconfig
+++ b/arch/powerpc/configs/mpc866_ads_defconfig
@@ -14,6 +14,7 @@ CONFIG_PARTITION_ADVANCED=y
CONFIG_MPC86XADS=y
CONFIG_8xx_COPYBACK=y
CONFIG_8xx_CPU6=y
+CONFIG_GEN_RTC=y
CONFIG_HZ_1000=y
CONFIG_MATH_EMULATION=y
# CONFIG_SECCOMP is not set
@@ -28,12 +29,10 @@ CONFIG_SYN_COOKIES=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_NETDEVICES=y
CONFIG_FS_ENET=y
-CONFIG_FIXED_PHY=y
# CONFIG_VT is not set
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_CPM=y
CONFIG_SERIAL_CPM_CONSOLE=y
-CONFIG_GEN_RTC=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT4_FS=y
@@ -43,4 +42,3 @@ CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
CONFIG_CRC_CCITT=y
CONFIG_CRC32_SLICEBY4=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/mpc86xx_basic_defconfig b/arch/powerpc/configs/mpc86xx_basic_defconfig
index 3283f0586e11..67bd1fa036ee 100644
--- a/arch/powerpc/configs/mpc86xx_basic_defconfig
+++ b/arch/powerpc/configs/mpc86xx_basic_defconfig
@@ -1,11 +1,11 @@
-CONFIG_HIGHMEM=y
-CONFIG_KEXEC=y
CONFIG_PPC_86xx=y
-CONFIG_PROC_KCORE=y
+CONFIG_MPC8641_HPCN=y
+CONFIG_SBC8641D=y
+CONFIG_MPC8610_HPCD=y
CONFIG_GEF_PPC9A=y
CONFIG_GEF_SBC310=y
CONFIG_GEF_SBC610=y
-CONFIG_MPC8610_HPCD=y
-CONFIG_MPC8641_HPCN=y
-CONFIG_SBC8641D=y
CONFIG_MVME7100=y
+CONFIG_HIGHMEM=y
+CONFIG_KEXEC=y
+CONFIG_PROC_KCORE=y
diff --git a/arch/powerpc/configs/mpc885_ads_defconfig b/arch/powerpc/configs/mpc885_ads_defconfig
index 91f53f1bec5d..ec3fcc2bf737 100644
--- a/arch/powerpc/configs/mpc885_ads_defconfig
+++ b/arch/powerpc/configs/mpc885_ads_defconfig
@@ -13,6 +13,7 @@ CONFIG_EXPERT=y
CONFIG_PARTITION_ADVANCED=y
# CONFIG_IOSCHED_CFQ is not set
CONFIG_8xx_COPYBACK=y
+CONFIG_GEN_RTC=y
CONFIG_HZ_100=y
# CONFIG_SECCOMP is not set
CONFIG_NET=y
@@ -51,7 +52,6 @@ CONFIG_DAVICOM_PHY=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_CPM=y
CONFIG_SERIAL_CPM_CONSOLE=y
-CONFIG_GEN_RTC=y
# CONFIG_HWMON is not set
# CONFIG_USB_SUPPORT is not set
# CONFIG_DNOTIFY is not set
diff --git a/arch/powerpc/configs/mvme5100_defconfig b/arch/powerpc/configs/mvme5100_defconfig
index 139add95a16a..63e38c7220f1 100644
--- a/arch/powerpc/configs/mvme5100_defconfig
+++ b/arch/powerpc/configs/mvme5100_defconfig
@@ -35,7 +35,6 @@ CONFIG_IP_PNP_BOOTP=y
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
CONFIG_NF_CONNTRACK=m
-CONFIG_NF_CT_PROTO_SCTP=m
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
@@ -70,7 +69,6 @@ CONFIG_TUN=m
# CONFIG_NET_VENDOR_3COM is not set
CONFIG_E100=y
# CONFIG_WLAN is not set
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
@@ -130,4 +128,3 @@ CONFIG_CRYPTO_DES=y
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_DEFLATE=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/pasemi_defconfig b/arch/powerpc/configs/pasemi_defconfig
index fe43ff47bd2f..6daa56f8895c 100644
--- a/arch/powerpc/configs/pasemi_defconfig
+++ b/arch/powerpc/configs/pasemi_defconfig
@@ -3,7 +3,6 @@ CONFIG_ALTIVEC=y
CONFIG_SMP=y
CONFIG_NR_CPUS=2
CONFIG_SYSVIPC=y
-CONFIG_FHANDLE=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_BLK_DEV_INITRD=y
@@ -116,9 +115,10 @@ CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_LOGO=y
CONFIG_SOUND=y
CONFIG_SND=y
-CONFIG_SND_SEQUENCER=y
+CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
+CONFIG_SND_SEQUENCER=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_USB_AUDIO=y
CONFIG_SND_USB_USX2Y=y
@@ -145,6 +145,7 @@ CONFIG_EDAC=y
CONFIG_EDAC_PASEMI=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_DS1307=y
+CONFIG_RAS=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
@@ -167,7 +168,6 @@ CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
CONFIG_CRC_CCITT=y
CONFIG_PRINTK_TIME=y
-CONFIG_DEBUG_FS=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DETECT_HUNG_TASK=y
@@ -175,7 +175,5 @@ CONFIG_DETECT_HUNG_TASK=y
CONFIG_XMON=y
CONFIG_XMON_DEFAULT=y
CONFIG_CRYPTO_MD4=y
-CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_BLOWFISH=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/pmac32_defconfig b/arch/powerpc/configs/pmac32_defconfig
index fc1e7a7388b8..1aab9a62a681 100644
--- a/arch/powerpc/configs/pmac32_defconfig
+++ b/arch/powerpc/configs/pmac32_defconfig
@@ -21,6 +21,7 @@ CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_PMAC=y
CONFIG_PPC601_SYNC_FIX=y
+CONFIG_GEN_RTC=y
CONFIG_HIGHMEM=y
CONFIG_BINFMT_MISC=m
CONFIG_HIBERNATION=y
@@ -179,10 +180,10 @@ CONFIG_PPP_ASYNC=y
CONFIG_PPP_SYNC_TTY=m
CONFIG_USB_USBNET=m
# CONFIG_USB_NET_CDC_SUBSET is not set
-CONFIG_PRISM54=m
CONFIG_B43=m
CONFIG_B43LEGACY=m
CONFIG_P54_COMMON=m
+CONFIG_PRISM54=m
CONFIG_INPUT_EVDEV=y
# CONFIG_KEYBOARD_ATKBD is not set
# CONFIG_MOUSE_PS2 is not set
@@ -193,7 +194,6 @@ CONFIG_SERIAL_8250=m
CONFIG_SERIAL_PMACZILOG=m
CONFIG_SERIAL_PMACZILOG_TTYS=y
CONFIG_NVRAM=y
-CONFIG_GEN_RTC=y
CONFIG_I2C_CHARDEV=m
CONFIG_APM_POWER=y
CONFIG_BATTERY_PMU=y
@@ -201,8 +201,9 @@ CONFIG_HWMON=m
CONFIG_AGP=m
CONFIG_AGP_UNINORTH=m
CONFIG_DRM=m
-CONFIG_DRM_R128=m
CONFIG_DRM_RADEON=m
+CONFIG_DRM_LEGACY=y
+CONFIG_DRM_R128=m
CONFIG_FB=y
CONFIG_FB_OF=y
CONFIG_FB_CONTROL=y
@@ -226,11 +227,12 @@ CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
CONFIG_SOUND=m
CONFIG_SND=m
-CONFIG_SND_SEQUENCER=m
-CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
-CONFIG_SND_SEQUENCER_OSS=y
+CONFIG_SND_SEQUENCER=m
+CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_SEQUENCER_OSS=m
CONFIG_SND_DUMMY=m
CONFIG_SND_POWERMAC=m
CONFIG_SND_AOA=m
@@ -300,8 +302,6 @@ CONFIG_NFSD_V4=y
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_ISO8859_1=m
CONFIG_CRC_T10DIF=y
-CONFIG_LIBCRC32C=m
-CONFIG_DEBUG_FS=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DETECT_HUNG_TASK=y
@@ -310,7 +310,6 @@ CONFIG_XMON=y
CONFIG_XMON_DEFAULT=y
CONFIG_BOOTX_TEXT=y
CONFIG_PPC_EARLY_DEBUG=y
-CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_SHA512=m
@@ -325,4 +324,3 @@ CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_DEFLATE=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/powernv_defconfig b/arch/powerpc/configs/powernv_defconfig
index 0695ce047d56..caee834760d2 100644
--- a/arch/powerpc/configs/powernv_defconfig
+++ b/arch/powerpc/configs/powernv_defconfig
@@ -1,10 +1,8 @@
CONFIG_PPC64=y
-CONFIG_SMP=y
CONFIG_NR_CPUS=2048
CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
-CONFIG_FHANDLE=y
CONFIG_AUDIT=y
CONFIG_IRQ_DOMAIN_DEBUG=y
CONFIG_NO_HZ=y
@@ -26,8 +24,8 @@ CONFIG_CGROUP_FREEZER=y
CONFIG_CPUSETS=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
-CONFIG_CGROUP_BPF=y
CONFIG_CGROUP_PERF=y
+CONFIG_CGROUP_BPF=y
CONFIG_USER_NS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_BPF_SYSCALL=y
@@ -62,7 +60,6 @@ CONFIG_PPC_64K_PAGES=y
CONFIG_PPC_SUBPAGE_PROT=y
CONFIG_SCHED_SMT=y
CONFIG_PM=y
-CONFIG_PCI_MSI=y
CONFIG_HOTPLUG_PCI=y
CONFIG_NET=y
CONFIG_PACKET=y
@@ -158,7 +155,6 @@ CONFIG_NETCONSOLE=y
CONFIG_TUN=m
CONFIG_VETH=m
CONFIG_VIRTIO_NET=m
-CONFIG_VHOST_NET=m
CONFIG_VORTEX=m
CONFIG_ACENIC=m
CONFIG_ACENIC_OMIT_TIGON_I=y
@@ -184,16 +180,13 @@ CONFIG_PPP_DEFLATE=m
CONFIG_PPPOE=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_EVDEV=m
CONFIG_INPUT_MISC=y
# CONFIG_SERIO_SERPORT is not set
-CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_JSM=m
CONFIG_VIRTIO_CONSOLE=m
-CONFIG_POWERNV_OP_PANEL=m
CONFIG_IPMI_HANDLER=y
CONFIG_IPMI_DEVICE_INTERFACE=y
CONFIG_IPMI_POWERNV=y
@@ -293,11 +286,15 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_DEBUG_STACKOVERFLOW=y
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
+CONFIG_HARDLOCKUP_DETECTOR=y
CONFIG_LATENCYTOP=y
+CONFIG_FTRACE=y
+CONFIG_FUNCTION_TRACER=y
+CONFIG_FUNCTION_GRAPH_TRACER=y
CONFIG_SCHED_TRACER=y
+CONFIG_FTRACE_SYSCALLS=y
CONFIG_BLK_DEV_IO_TRACE=y
-CONFIG_UPROBE_EVENT=y
CONFIG_CODE_PATCHING_SELFTEST=y
CONFIG_FTR_FIXUP_SELFTEST=y
CONFIG_MSI_BITMAP_SELFTEST=y
@@ -309,6 +306,7 @@ CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_CRC32C_VPMSUM=m
CONFIG_CRYPTO_MD5_PPC=m
CONFIG_CRYPTO_MICHAEL_MIC=m
+CONFIG_CRYPTO_SHA1_PPC=m
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m
@@ -317,14 +315,13 @@ CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=m
-CONFIG_CRYPTO_SHA1_PPC=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_LZO=m
CONFIG_CRYPTO_DEV_NX=y
CONFIG_CRYPTO_DEV_VMX=y
-CONFIG_CRYPTO_DEV_VMX_ENCRYPT=m
CONFIG_VIRTUALIZATION=y
CONFIG_KVM_BOOK3S_64=m
CONFIG_KVM_BOOK3S_64_HV=m
+CONFIG_VHOST_NET=m
diff --git a/arch/powerpc/configs/ppc40x_defconfig b/arch/powerpc/configs/ppc40x_defconfig
index 370c0bbcff71..10fb1df63b46 100644
--- a/arch/powerpc/configs/ppc40x_defconfig
+++ b/arch/powerpc/configs/ppc40x_defconfig
@@ -51,9 +51,9 @@ CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_UARTLITE=y
CONFIG_SERIAL_UARTLITE_CONSOLE=y
-CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set
CONFIG_XILINX_HWICAP=m
CONFIG_I2C=m
@@ -85,4 +85,3 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/ppc44x_defconfig b/arch/powerpc/configs/ppc44x_defconfig
index 2766e8f590bc..66dd6bf45cde 100644
--- a/arch/powerpc/configs/ppc44x_defconfig
+++ b/arch/powerpc/configs/ppc44x_defconfig
@@ -68,9 +68,9 @@ CONFIG_SERIAL_8250_CONSOLE=y
# CONFIG_SERIAL_8250_PCI is not set
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_UARTLITE=y
CONFIG_SERIAL_UARTLITE_CONSOLE=y
-CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set
CONFIG_XILINX_HWICAP=m
CONFIG_I2C=m
@@ -94,7 +94,6 @@ CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y
CONFIG_UBIFS_FS=m
-CONFIG_LOGFS=m
CONFIG_CRAMFS=y
CONFIG_SQUASHFS=m
CONFIG_SQUASHFS_XATTR=y
@@ -108,6 +107,5 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
CONFIG_VIRTUALIZATION=y
diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index 5175028c56ce..6ddca80c52c3 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -1,8 +1,6 @@
CONFIG_PPC64=y
-CONFIG_SMP=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
-CONFIG_FHANDLE=y
CONFIG_IRQ_DOMAIN_DEBUG=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
@@ -28,9 +26,10 @@ CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_PPC_SPLPAR=y
+CONFIG_DTL=y
CONFIG_SCANLOG=m
CONFIG_PPC_SMLPAR=y
-CONFIG_DTL=y
+CONFIG_IBMEBUS=y
CONFIG_PPC_MAPLE=y
CONFIG_PPC_PASEMI=y
CONFIG_PPC_PASEMI_IOMMU=y
@@ -41,9 +40,8 @@ CONFIG_PS3_FLASH=m
CONFIG_PS3_LPM=m
CONFIG_PPC_IBM_CELL_BLADE=y
CONFIG_RTAS_FLASH=m
-CONFIG_IBMEBUS=y
-CONFIG_CPU_FREQ_PMAC64=y
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_PMAC64=y
CONFIG_HZ_100=y
CONFIG_BINFMT_MISC=m
CONFIG_PPC_TRANSACTIONAL_MEM=y
@@ -51,14 +49,15 @@ CONFIG_KEXEC=y
CONFIG_KEXEC_FILE=y
CONFIG_CRASH_DUMP=y
CONFIG_IRQ_ALL_CPUS=y
-CONFIG_MEMORY_HOTREMOVE=y
CONFIG_KSM=y
+CONFIG_TRANSPARENT_HUGEPAGE=y
+CONFIG_PPC_64K_PAGES=y
CONFIG_SCHED_SMT=y
-CONFIG_PCCARD=y
-CONFIG_ELECTRA_CF=y
CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_RPA=m
CONFIG_HOTPLUG_PCI_RPA_DLPAR=m
+CONFIG_PCCARD=y
+CONFIG_ELECTRA_CF=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
@@ -154,7 +153,6 @@ CONFIG_DUMMY=m
CONFIG_NETCONSOLE=y
CONFIG_TUN=m
CONFIG_VIRTIO_NET=m
-CONFIG_VHOST_NET=m
CONFIG_VORTEX=m
CONFIG_ACENIC=m
CONFIG_ACENIC_OMIT_TIGON_I=y
@@ -181,15 +179,14 @@ CONFIG_SUNGEM=y
CONFIG_GELIC_NET=m
CONFIG_GELIC_WIRELESS=y
CONFIG_SPIDER_NET=m
-CONFIG_MARVELL_PHY=y
CONFIG_BROADCOM_PHY=m
+CONFIG_MARVELL_PHY=y
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPPOE=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_EVDEV=m
CONFIG_INPUT_MISC=y
CONFIG_INPUT_PCSPKR=m
@@ -197,7 +194,6 @@ CONFIG_INPUT_PCSPKR=m
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_ICOM=m
-CONFIG_SERIAL_TXX9_CONSOLE=y
CONFIG_SERIAL_JSM=m
CONFIG_HVC_CONSOLE=y
CONFIG_HVC_RTAS=y
@@ -226,11 +222,12 @@ CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
CONFIG_SOUND=m
CONFIG_SND=m
-CONFIG_SND_SEQUENCER=m
-CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
-CONFIG_SND_SEQUENCER_OSS=y
+CONFIG_SND_SEQUENCER=m
+CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_SEQUENCER_OSS=m
CONFIG_SND_POWERMAC=m
CONFIG_SND_AOA=m
CONFIG_SND_AOA_FABRIC_LAYOUT=m
@@ -250,6 +247,9 @@ CONFIG_USB_EHCI_HCD=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_STORAGE=m
CONFIG_USB_APPLEDISPLAY=m
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=m
+CONFIG_LEDS_POWERNV=m
CONFIG_INFINIBAND=m
CONFIG_INFINIBAND_USER_MAD=m
CONFIG_INFINIBAND_USER_ACCESS=m
@@ -267,7 +267,7 @@ CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_DS1307=y
CONFIG_VIRTIO_PCI=m
CONFIG_VIRTIO_BALLOON=m
-CONFIG_FS_DAX=y
+CONFIG_RAS=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
@@ -287,6 +287,7 @@ CONFIG_XFS_POSIX_ACL=y
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
CONFIG_NILFS2_FS=m
+CONFIG_FS_DAX=y
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
CONFIG_OVERLAY_FS=m
@@ -324,12 +325,15 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_DEBUG_STACKOVERFLOW=y
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
+CONFIG_HARDLOCKUP_DETECTOR=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_LATENCYTOP=y
+CONFIG_FTRACE=y
+CONFIG_FUNCTION_TRACER=y
+CONFIG_FUNCTION_GRAPH_TRACER=y
CONFIG_SCHED_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y
-CONFIG_UPROBE_EVENT=y
CONFIG_CODE_PATCHING_SELFTEST=y
CONFIG_FTR_FIXUP_SELFTEST=y
CONFIG_MSI_BITMAP_SELFTEST=y
@@ -342,6 +346,7 @@ CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_CRC32C_VPMSUM=m
CONFIG_CRYPTO_MD5_PPC=m
CONFIG_CRYPTO_MICHAEL_MIC=m
+CONFIG_CRYPTO_SHA1_PPC=m
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m
@@ -350,19 +355,14 @@ CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=m
-CONFIG_CRYPTO_SHA1_PPC=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_LZO=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_DEV_NX=y
CONFIG_CRYPTO_DEV_NX_ENCRYPT=m
CONFIG_CRYPTO_DEV_VMX=y
-CONFIG_CRYPTO_DEV_VMX_ENCRYPT=m
CONFIG_VIRTUALIZATION=y
CONFIG_KVM_BOOK3S_64=m
CONFIG_KVM_BOOK3S_64_HV=m
-CONFIG_NEW_LEDS=y
-CONFIG_LEDS_CLASS=m
-CONFIG_LEDS_POWERNV=m
+CONFIG_VHOST_NET=m
diff --git a/arch/powerpc/configs/ppc64e_defconfig b/arch/powerpc/configs/ppc64e_defconfig
index 6340e6c53c54..41d85cb3c9a2 100644
--- a/arch/powerpc/configs/ppc64e_defconfig
+++ b/arch/powerpc/configs/ppc64e_defconfig
@@ -3,7 +3,6 @@ CONFIG_PPC_BOOK3E_64=y
CONFIG_SMP=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
-CONFIG_FHANDLE=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_TASKSTATS=y
@@ -30,8 +29,8 @@ CONFIG_BINFMT_MISC=m
CONFIG_IRQ_ALL_CPUS=y
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_PCI_MSI=y
-CONFIG_PCCARD=y
CONFIG_HOTPLUG_PCI=y
+CONFIG_PCCARD=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
@@ -108,15 +107,14 @@ CONFIG_E100=y
CONFIG_E1000=y
CONFIG_IXGB=m
CONFIG_SUNGEM=y
-CONFIG_MARVELL_PHY=y
CONFIG_BROADCOM_PHY=m
+CONFIG_MARVELL_PHY=y
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPPOE=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_EVDEV=m
CONFIG_INPUT_MISC=y
# CONFIG_SERIO_SERPORT is not set
@@ -143,11 +141,12 @@ CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
CONFIG_SOUND=m
CONFIG_SND=m
-CONFIG_SND_SEQUENCER=m
-CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
-CONFIG_SND_SEQUENCER_OSS=y
+CONFIG_SND_SEQUENCER=m
+CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_SEQUENCER_OSS=m
CONFIG_HID_DRAGONRISE=y
CONFIG_HID_GYRATION=y
CONFIG_HID_TWINHAN=y
@@ -172,10 +171,8 @@ CONFIG_INFINIBAND=m
CONFIG_INFINIBAND_MTHCA=m
CONFIG_INFINIBAND_IPOIB=m
CONFIG_INFINIBAND_ISER=m
-CONFIG_EDAC=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_DS1307=y
-CONFIG_FS_DAX=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
@@ -192,6 +189,7 @@ CONFIG_JFS_POSIX_ACL=y
CONFIG_JFS_SECURITY=y
CONFIG_XFS_FS=m
CONFIG_XFS_POSIX_ACL=y
+CONFIG_FS_DAX=y
CONFIG_AUTOFS4_FS=m
CONFIG_ISO9660_FS=y
CONFIG_UDF_FS=m
@@ -251,5 +249,4 @@ CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_LZO=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig
index 18d0d60dadbf..da0e8d535eb8 100644
--- a/arch/powerpc/configs/ppc6xx_defconfig
+++ b/arch/powerpc/configs/ppc6xx_defconfig
@@ -11,10 +11,10 @@ CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
CONFIG_CGROUPS=y
-CONFIG_CGROUP_DEVICE=y
-CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_SCHED=y
CONFIG_RT_GROUP_SCHED=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_CPUACCT=y
CONFIG_USER_NS=y
CONFIG_BLK_DEV_INITRD=y
# CONFIG_COMPAT_BRK is not set
@@ -61,7 +61,7 @@ CONFIG_SBC8641D=y
CONFIG_MPC8610_HPCD=y
CONFIG_GEF_SBC610=y
CONFIG_CPU_FREQ=y
-CONFIG_CPU_FREQ_STAT=m
+CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
@@ -70,7 +70,6 @@ CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
CONFIG_CPU_FREQ_PMAC=y
CONFIG_TAU=y
CONFIG_TAU_AVERAGE=y
-CONFIG_QUICC_ENGINE=y
CONFIG_QE_GPIO=y
CONFIG_MCU_MPC8349EMITX=y
CONFIG_HIGHMEM=y
@@ -141,7 +140,6 @@ CONFIG_NETFILTER=y
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_UDPLITE=m
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
@@ -187,7 +185,6 @@ CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
-CONFIG_NETFILTER_XT_MATCH_SOCKET=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
@@ -195,7 +192,6 @@ CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
CONFIG_NF_CONNTRACK_IPV4=m
-# CONFIG_NF_CONNTRACK_PROC_COMPAT is not set
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
@@ -334,9 +330,7 @@ CONFIG_BT_BNEP_MC_FILTER=y
CONFIG_BT_BNEP_PROTO_FILTER=y
CONFIG_BT_HIDP=m
CONFIG_BT_HCIUART=m
-CONFIG_BT_HCIUART_H4=y
CONFIG_BT_HCIUART_BCSP=y
-CONFIG_BT_HCIUART_LL=y
CONFIG_BT_HCIBCM203X=m
CONFIG_BT_HCIBPA10X=m
CONFIG_BT_HCIBFUSB=m
@@ -370,7 +364,6 @@ CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=16384
CONFIG_CDROM_PKTCDVD=m
CONFIG_VIRTIO_BLK=m
-CONFIG_BLK_DEV_HD=y
CONFIG_ENCLOSURE_SERVICES=m
CONFIG_SENSORS_TSL2550=m
CONFIG_EEPROM_AT24=m
@@ -548,16 +541,16 @@ CONFIG_PCMCIA_XIRC2PS=m
CONFIG_FDDI=y
CONFIG_SKFP=m
CONFIG_NET_SB1000=m
-CONFIG_MARVELL_PHY=m
-CONFIG_DAVICOM_PHY=m
-CONFIG_QSEMI_PHY=m
-CONFIG_LXT_PHY=m
-CONFIG_CICADA_PHY=m
-CONFIG_VITESSE_PHY=m
-CONFIG_SMSC_PHY=m
CONFIG_BROADCOM_PHY=m
+CONFIG_CICADA_PHY=m
+CONFIG_DAVICOM_PHY=m
CONFIG_ICPLUS_PHY=m
+CONFIG_LXT_PHY=m
+CONFIG_MARVELL_PHY=m
+CONFIG_QSEMI_PHY=m
CONFIG_REALTEK_PHY=m
+CONFIG_SMSC_PHY=m
+CONFIG_VITESSE_PHY=m
CONFIG_PLIP=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_FILTER=y
@@ -585,7 +578,6 @@ CONFIG_USB_ALI_M5632=y
CONFIG_USB_AN2720=y
CONFIG_USB_EPSON2888=y
CONFIG_USB_KC2190=y
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_JOYDEV=m
CONFIG_INPUT_EVDEV=y
CONFIG_MOUSE_SERIAL=m
@@ -647,7 +639,6 @@ CONFIG_SYNCLINKMP=m
CONFIG_SYNCLINK_GT=m
CONFIG_NOZOMI=m
CONFIG_N_HDLC=m
-# CONFIG_DEVKMEM is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_CS=m
@@ -657,13 +648,13 @@ CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_8250_DETECT_IRQ=y
CONFIG_SERIAL_8250_RSA=y
+CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_UARTLITE=m
CONFIG_SERIAL_PMACZILOG=m
CONFIG_SERIAL_MPC52xx=y
CONFIG_SERIAL_MPC52xx_CONSOLE=y
CONFIG_SERIAL_MPC52xx_CONSOLE_BAUD=115200
CONFIG_SERIAL_JSM=m
-CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_PRINTER=m
CONFIG_LP_CONSOLE=y
CONFIG_PPDEV=m
@@ -748,9 +739,10 @@ CONFIG_MFD_SM501_GPIO=y
CONFIG_AGP=y
CONFIG_AGP_UNINORTH=y
CONFIG_DRM=m
+CONFIG_DRM_RADEON=m
+CONFIG_DRM_LEGACY=y
CONFIG_DRM_TDFX=m
CONFIG_DRM_R128=m
-CONFIG_DRM_RADEON=m
CONFIG_DRM_MGA=m
CONFIG_DRM_SIS=m
CONFIG_DRM_VIA=m
@@ -797,17 +789,18 @@ CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_VGA16 is not set
CONFIG_SOUND=m
CONFIG_SND=m
-CONFIG_SND_SEQUENCER=m
-CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
-CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_DYNAMIC_MINORS=y
# CONFIG_SND_SUPPORT_OLD_API is not set
CONFIG_SND_VERBOSE_PRINTK=y
CONFIG_SND_DEBUG=y
CONFIG_SND_DEBUG_VERBOSE=y
CONFIG_SND_PCM_XRUN_DEBUG=y
+CONFIG_SND_SEQUENCER=m
+CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_SEQUENCER_OSS=m
CONFIG_SND_DUMMY=m
CONFIG_SND_VIRMIDI=m
CONFIG_SND_MTPAV=m
@@ -899,7 +892,7 @@ CONFIG_USB=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
CONFIG_USB_MON=y
CONFIG_USB_EHCI_HCD=m
-CONFIG_USB_EHCI_FSL=y
+CONFIG_USB_EHCI_FSL=m
CONFIG_USB_OHCI_HCD=m
CONFIG_USB_OHCI_HCD_PPC_OF_BE=y
CONFIG_USB_OHCI_HCD_PPC_OF_LE=y
@@ -967,7 +960,6 @@ CONFIG_USB_ADUTUX=m
CONFIG_USB_SEVSEG=m
CONFIG_USB_LEGOTOWER=m
CONFIG_USB_LCD=m
-CONFIG_USB_LED=m
CONFIG_USB_IDMOUSE=m
CONFIG_USB_FTDI_ELAN=m
CONFIG_USB_APPLEDISPLAY=m
@@ -1020,15 +1012,14 @@ CONFIG_UIO_CIF=m
CONFIG_UIO_PDRV_GENIRQ=m
CONFIG_VIRTIO_PCI=m
CONFIG_VIRTIO_BALLOON=m
-CONFIG_FS_DAX=y
+CONFIG_QUICC_ENGINE=y
CONFIG_EXT2_FS=m
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
-CONFIG_EXT4_FS=m
+CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
-CONFIG_EXT4_FS=y
CONFIG_JBD2_DEBUG=y
CONFIG_REISERFS_FS=m
CONFIG_REISERFS_PROC_INFO=y
@@ -1042,6 +1033,7 @@ CONFIG_XFS_FS=m
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
CONFIG_GFS2_FS=m
+CONFIG_FS_DAX=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
@@ -1146,7 +1138,6 @@ CONFIG_DEBUG_VM=y
CONFIG_DEBUG_HIGHMEM=y
CONFIG_DEBUG_STACKOVERFLOW=y
CONFIG_DEBUG_SHIRQ=y
-CONFIG_TIMER_STATS=y
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
@@ -1173,7 +1164,6 @@ CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_GCM=m
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_PCBC=m
@@ -1201,7 +1191,6 @@ CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_LZO=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_DEV_HIFN_795X=m
CONFIG_CRYPTO_DEV_HIFN_795X_RNG=y
CONFIG_CRYPTO_DEV_TALITOS=m
diff --git a/arch/powerpc/configs/pq2fads_defconfig b/arch/powerpc/configs/pq2fads_defconfig
index 50b2bad51d0a..0ededa8c837d 100644
--- a/arch/powerpc/configs/pq2fads_defconfig
+++ b/arch/powerpc/configs/pq2fads_defconfig
@@ -79,4 +79,3 @@ CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/powerpc/configs/ps3_defconfig b/arch/powerpc/configs/ps3_defconfig
index ee0ec5a682fc..2efa025bf483 100644
--- a/arch/powerpc/configs/ps3_defconfig
+++ b/arch/powerpc/configs/ps3_defconfig
@@ -5,7 +5,6 @@ CONFIG_SMP=y
CONFIG_NR_CPUS=2
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
-CONFIG_FHANDLE=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
@@ -94,7 +93,6 @@ CONFIG_USB_USBNET=m
# CONFIG_USB_NET_CDC_SUBSET is not set
# CONFIG_USB_NET_ZAURUS is not set
CONFIG_INPUT_FF_MEMLESS=m
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_JOYDEV=m
CONFIG_INPUT_EVDEV=m
# CONFIG_INPUT_KEYBOARD is not set
@@ -161,7 +159,6 @@ CONFIG_NLS_ISO8859_1=y
CONFIG_CRC_CCITT=m
CONFIG_CRC_T10DIF=y
CONFIG_DEBUG_INFO=y
-CONFIG_DEBUG_FS=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DEBUG_STACKOVERFLOW=y
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index 1a61aa20dfba..3d935969e5a2 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -1,11 +1,8 @@
CONFIG_PPC64=y
-CONFIG_SMP=y
CONFIG_NR_CPUS=2048
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
-CONFIG_FHANDLE=y
CONFIG_AUDIT=y
-CONFIG_AUDITSYSCALL=y
CONFIG_IRQ_DOMAIN_DEBUG=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
@@ -18,17 +15,16 @@ CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=18
CONFIG_LOG_CPU_MAX_BUF_SHIFT=13
CONFIG_NUMA_BALANCING=y
-CONFIG_NUMA_BALANCING_DEFAULT_ENABLED=y
CONFIG_CGROUPS=y
+CONFIG_MEMCG=y
+CONFIG_MEMCG_SWAP=y
+CONFIG_CGROUP_SCHED=y
CONFIG_CGROUP_FREEZER=y
-CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
+CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
-CONFIG_CGROUP_BPF=y
-CONFIG_MEMCG=y
-CONFIG_MEMCG_SWAP=y
CONFIG_CGROUP_PERF=y
-CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUP_BPF=y
CONFIG_USER_NS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_BPF_SYSCALL=y
@@ -43,12 +39,12 @@ CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_PPC_SPLPAR=y
+CONFIG_DTL=y
CONFIG_SCANLOG=m
CONFIG_PPC_SMLPAR=y
-CONFIG_DTL=y
+CONFIG_IBMEBUS=y
# CONFIG_PPC_PMAC is not set
CONFIG_RTAS_FLASH=m
-CONFIG_IBMEBUS=y
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_HZ_100=y
CONFIG_BINFMT_MISC=m
@@ -155,7 +151,6 @@ CONFIG_NETCONSOLE=y
CONFIG_TUN=m
CONFIG_VETH=m
CONFIG_VIRTIO_NET=m
-CONFIG_VHOST_NET=m
CONFIG_VORTEX=m
CONFIG_ACENIC=m
CONFIG_ACENIC_OMIT_TIGON_I=y
@@ -183,12 +178,10 @@ CONFIG_PPP_DEFLATE=m
CONFIG_PPPOE=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_EVDEV=m
CONFIG_INPUT_MISC=y
CONFIG_INPUT_PCSPKR=m
# CONFIG_SERIO_SERPORT is not set
-CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_ICOM=m
@@ -198,8 +191,6 @@ CONFIG_HVC_RTAS=y
CONFIG_HVCS=m
CONFIG_VIRTIO_CONSOLE=m
CONFIG_IBM_BSR=m
-CONFIG_RTC_CLASS=y
-CONFIG_RTC_DRV_GENERIC=y
CONFIG_RAW_DRIVER=y
CONFIG_MAX_RAW_DEVS=1024
CONFIG_FB=y
@@ -227,6 +218,9 @@ CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_HCD_PPC_OF is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_STORAGE=m
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=m
+CONFIG_LEDS_POWERNV=m
CONFIG_INFINIBAND=m
CONFIG_INFINIBAND_USER_MAD=m
CONFIG_INFINIBAND_USER_ACCESS=m
@@ -238,9 +232,10 @@ CONFIG_INFINIBAND_IPOIB=m
CONFIG_INFINIBAND_IPOIB_CM=y
CONFIG_INFINIBAND_SRP=m
CONFIG_INFINIBAND_ISER=m
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_GENERIC=y
CONFIG_VIRTIO_PCI=m
CONFIG_VIRTIO_BALLOON=m
-CONFIG_FS_DAX=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
@@ -256,6 +251,7 @@ CONFIG_XFS_POSIX_ACL=y
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
CONFIG_NILFS2_FS=m
+CONFIG_FS_DAX=y
CONFIG_AUTOFS4_FS=m
CONFIG_FUSE_FS=m
CONFIG_OVERLAY_FS=m
@@ -291,11 +287,14 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_DEBUG_STACKOVERFLOW=y
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
+CONFIG_HARDLOCKUP_DETECTOR=y
CONFIG_LATENCYTOP=y
+CONFIG_FTRACE=y
+CONFIG_FUNCTION_TRACER=y
+CONFIG_FUNCTION_GRAPH_TRACER=y
CONFIG_SCHED_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y
-CONFIG_UPROBE_EVENT=y
CONFIG_CODE_PATCHING_SELFTEST=y
CONFIG_FTR_FIXUP_SELFTEST=y
CONFIG_MSI_BITMAP_SELFTEST=y
@@ -306,6 +305,7 @@ CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_CRC32C_VPMSUM=m
CONFIG_CRYPTO_MD5_PPC=m
CONFIG_CRYPTO_MICHAEL_MIC=m
+CONFIG_CRYPTO_SHA1_PPC=m
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m
@@ -314,19 +314,14 @@ CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SALSA20=m
-CONFIG_CRYPTO_SHA1_PPC=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_LZO=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_DEV_NX=y
CONFIG_CRYPTO_DEV_NX_ENCRYPT=m
CONFIG_CRYPTO_DEV_VMX=y
-CONFIG_CRYPTO_DEV_VMX_ENCRYPT=m
CONFIG_VIRTUALIZATION=y
CONFIG_KVM_BOOK3S_64=m
CONFIG_KVM_BOOK3S_64_HV=m
-CONFIG_NEW_LEDS=y
-CONFIG_LEDS_CLASS=m
-CONFIG_LEDS_POWERNV=m
+CONFIG_VHOST_NET=m
diff --git a/arch/powerpc/configs/tqm8xx_defconfig b/arch/powerpc/configs/tqm8xx_defconfig
index 78fddf24b5d3..cd72193fac0a 100644
--- a/arch/powerpc/configs/tqm8xx_defconfig
+++ b/arch/powerpc/configs/tqm8xx_defconfig
@@ -18,6 +18,7 @@ CONFIG_PARTITION_ADVANCED=y
CONFIG_TQM8XX=y
CONFIG_8xx_COPYBACK=y
# CONFIG_8xx_CPU15 is not set
+CONFIG_GEN_RTC=y
CONFIG_HZ_100=y
# CONFIG_SECCOMP is not set
CONFIG_NET=y
@@ -44,7 +45,6 @@ CONFIG_MTD_PHYSMAP_OF=y
CONFIG_NETDEVICES=y
CONFIG_FS_ENET=y
CONFIG_DAVICOM_PHY=y
-CONFIG_FIXED_PHY=y
# CONFIG_WLAN is not set
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
@@ -53,7 +53,6 @@ CONFIG_FIXED_PHY=y
CONFIG_SERIAL_CPM=y
CONFIG_SERIAL_CPM_CONSOLE=y
CONFIG_HW_RANDOM=y
-CONFIG_GEN_RTC=y
# CONFIG_HWMON is not set
# CONFIG_USB_SUPPORT is not set
# CONFIG_DNOTIFY is not set
diff --git a/arch/powerpc/configs/wii_defconfig b/arch/powerpc/configs/wii_defconfig
index dcdd51b57783..9c7400a19e9d 100644
--- a/arch/powerpc/configs/wii_defconfig
+++ b/arch/powerpc/configs/wii_defconfig
@@ -55,9 +55,6 @@ CONFIG_B43_SDIO=y
# CONFIG_B43_PHY_LP is not set
CONFIG_B43_DEBUG=y
CONFIG_INPUT_FF_MEMLESS=m
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=640
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=480
CONFIG_INPUT_JOYDEV=y
CONFIG_INPUT_EVDEV=y
# CONFIG_KEYBOARD_ATKBD is not set
@@ -68,7 +65,6 @@ CONFIG_INPUT_UINPUT=y
# CONFIG_SERIO_I8042 is not set
# CONFIG_SERIO_SERPORT is not set
CONFIG_LEGACY_PTY_COUNT=64
-# CONFIG_DEVKMEM is not set
# CONFIG_HW_RANDOM is not set
CONFIG_NVRAM=y
CONFIG_I2C=y
@@ -83,11 +79,12 @@ CONFIG_FB=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_SOUND=y
CONFIG_SND=y
-CONFIG_SND_SEQUENCER=y
+CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
-CONFIG_SND_SEQUENCER_OSS=y
# CONFIG_SND_VERBOSE_PROCFS is not set
+CONFIG_SND_SEQUENCER=y
+CONFIG_SND_SEQUENCER_OSS=y
CONFIG_HID_APPLE=m
CONFIG_HID_WACOM=m
CONFIG_MMC=y
@@ -119,5 +116,4 @@ CONFIG_SCHED_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_DMA_API_DEBUG=y
CONFIG_PPC_EARLY_DEBUG=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/powerpc/include/asm/Kbuild b/arch/powerpc/include/asm/Kbuild
index 5c4fbc80dc6c..2542ea15d338 100644
--- a/arch/powerpc/include/asm/Kbuild
+++ b/arch/powerpc/include/asm/Kbuild
@@ -8,3 +8,4 @@ generic-y += mcs_spinlock.h
generic-y += preempt.h
generic-y += rwsem.h
generic-y += vtime.h
+generic-y += msi.h
diff --git a/arch/powerpc/include/asm/asm-compat.h b/arch/powerpc/include/asm/asm-compat.h
index cee3aa087653..7f2a7702596c 100644
--- a/arch/powerpc/include/asm/asm-compat.h
+++ b/arch/powerpc/include/asm/asm-compat.h
@@ -25,7 +25,7 @@
#define PPC_LCMPI stringify_in_c(cmpdi)
#define PPC_LCMPLI stringify_in_c(cmpldi)
#define PPC_LCMP stringify_in_c(cmpd)
-#define PPC_LONG stringify_in_c(.llong)
+#define PPC_LONG stringify_in_c(.8byte)
#define PPC_LONG_ALIGN stringify_in_c(.balign 8)
#define PPC_TLNEI stringify_in_c(tdnei)
#define PPC_LLARX(t, a, b, eh) PPC_LDARX(t, a, b, eh)
diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
index 2b90335194a7..a2cc8010cd72 100644
--- a/arch/powerpc/include/asm/atomic.h
+++ b/arch/powerpc/include/asm/atomic.h
@@ -560,7 +560,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
* Atomically increments @v by 1, so long as @v is non-zero.
* Returns non-zero if @v was non-zero, and zero otherwise.
*/
-static __inline__ long atomic64_inc_not_zero(atomic64_t *v)
+static __inline__ int atomic64_inc_not_zero(atomic64_t *v)
{
long t1, t2;
@@ -579,7 +579,7 @@ static __inline__ long atomic64_inc_not_zero(atomic64_t *v)
: "r" (&v->counter)
: "cc", "xer", "memory");
- return t1;
+ return t1 != 0;
}
#endif /* __powerpc64__ */
diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h
index c0deafc212b8..9c601adfc500 100644
--- a/arch/powerpc/include/asm/barrier.h
+++ b/arch/powerpc/include/asm/barrier.h
@@ -74,8 +74,6 @@ do { \
___p1; \
})
-#define smp_mb__before_spinlock() smp_mb()
-
#include <asm-generic/barrier.h>
#endif /* _ASM_POWERPC_BARRIER_H */
diff --git a/arch/powerpc/include/asm/bitops.h b/arch/powerpc/include/asm/bitops.h
index 33a24fdd7958..b750ffef83c7 100644
--- a/arch/powerpc/include/asm/bitops.h
+++ b/arch/powerpc/include/asm/bitops.h
@@ -206,68 +206,13 @@ static __inline__ void __clear_bit_unlock(int nr, volatile unsigned long *addr)
* Return the zero-based bit position (LE, not IBM bit numbering) of
* the most significant 1-bit in a double word.
*/
-static __inline__ __attribute__((const))
-int __ilog2(unsigned long x)
-{
- int lz;
+#define __ilog2(x) ilog2(x)
- asm (PPC_CNTLZL "%0,%1" : "=r" (lz) : "r" (x));
- return BITS_PER_LONG - 1 - lz;
-}
+#include <asm-generic/bitops/ffz.h>
-static inline __attribute__((const))
-int __ilog2_u32(u32 n)
-{
- int bit;
- asm ("cntlzw %0,%1" : "=r" (bit) : "r" (n));
- return 31 - bit;
-}
+#include <asm-generic/bitops/builtin-__ffs.h>
-#ifdef __powerpc64__
-static inline __attribute__((const))
-int __ilog2_u64(u64 n)
-{
- int bit;
- asm ("cntlzd %0,%1" : "=r" (bit) : "r" (n));
- return 63 - bit;
-}
-#endif
-
-/*
- * Determines the bit position of the least significant 0 bit in the
- * specified double word. The returned bit position will be
- * zero-based, starting from the right side (63/31 - 0).
- */
-static __inline__ unsigned long ffz(unsigned long x)
-{
- /* no zero exists anywhere in the 8 byte area. */
- if ((x = ~x) == 0)
- return BITS_PER_LONG;
-
- /*
- * Calculate the bit position of the least significant '1' bit in x
- * (since x has been changed this will actually be the least significant
- * '0' bit in * the original x). Note: (x & -x) gives us a mask that
- * is the least significant * (RIGHT-most) 1-bit of the value in x.
- */
- return __ilog2(x & -x);
-}
-
-static __inline__ unsigned long __ffs(unsigned long x)
-{
- return __ilog2(x & -x);
-}
-
-/*
- * ffs: find first bit set. This is defined the same way as
- * the libc and compiler builtin ffs routines, therefore
- * differs in spirit from the above ffz (man ffs).
- */
-static __inline__ int ffs(int x)
-{
- unsigned long i = (unsigned long)x;
- return __ilog2(i & -i) + 1;
-}
+#include <asm-generic/bitops/builtin-ffs.h>
/*
* fls: find last (most-significant) bit set.
@@ -275,33 +220,15 @@ static __inline__ int ffs(int x)
*/
static __inline__ int fls(unsigned int x)
{
- int lz;
-
- asm ("cntlzw %0,%1" : "=r" (lz) : "r" (x));
- return 32 - lz;
+ return 32 - __builtin_clz(x);
}
-static __inline__ unsigned long __fls(unsigned long x)
-{
- return __ilog2(x);
-}
+#include <asm-generic/bitops/builtin-__fls.h>
-/*
- * 64-bit can do this using one cntlzd (count leading zeroes doubleword)
- * instruction; for 32-bit we use the generic version, which does two
- * 32-bit fls calls.
- */
-#ifdef __powerpc64__
static __inline__ int fls64(__u64 x)
{
- int lz;
-
- asm ("cntlzd %0,%1" : "=r" (lz) : "r" (x));
- return 64 - lz;
+ return 64 - __builtin_clzll(x);
}
-#else
-#include <asm-generic/bitops/fls64.h>
-#endif /* __powerpc64__ */
#ifdef CONFIG_PPC64
unsigned int __arch_hweight8(unsigned int w);
diff --git a/arch/powerpc/include/asm/book3s/32/pgalloc.h b/arch/powerpc/include/asm/book3s/32/pgalloc.h
index d310546e5d9d..a120e7f8d535 100644
--- a/arch/powerpc/include/asm/book3s/32/pgalloc.h
+++ b/arch/powerpc/include/asm/book3s/32/pgalloc.h
@@ -31,7 +31,8 @@ extern struct kmem_cache *pgtable_cache[];
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
- return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE), GFP_KERNEL);
+ return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE),
+ pgtable_gfp_flags(mm, GFP_KERNEL));
}
static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h
index 26ed228d4dc6..4d453f979553 100644
--- a/arch/powerpc/include/asm/book3s/32/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/32/pgtable.h
@@ -294,11 +294,11 @@ static inline void __ptep_set_access_flags(struct mm_struct *mm,
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) >> 3 })
#define __swp_entry_to_pte(x) ((pte_t) { (x).val << 3 })
-extern int get_pteptr(struct mm_struct *mm, unsigned long addr, pte_t **ptep,
- pmd_t **pmdp);
+int map_kernel_page(unsigned long va, phys_addr_t pa, int flags);
/* Generic accessors to PTE bits */
static inline int pte_write(pte_t pte) { return !!(pte_val(pte) & _PAGE_RW);}
+static inline int pte_read(pte_t pte) { return 1; }
static inline int pte_dirty(pte_t pte) { return !!(pte_val(pte) & _PAGE_DIRTY); }
static inline int pte_young(pte_t pte) { return !!(pte_val(pte) & _PAGE_ACCESSED); }
static inline int pte_special(pte_t pte) { return !!(pte_val(pte) & _PAGE_SPECIAL); }
diff --git a/arch/powerpc/include/asm/book3s/64/hash.h b/arch/powerpc/include/asm/book3s/64/hash.h
index 4e957b027fe0..f88452019114 100644
--- a/arch/powerpc/include/asm/book3s/64/hash.h
+++ b/arch/powerpc/include/asm/book3s/64/hash.h
@@ -40,7 +40,7 @@
* Define the address range of the kernel non-linear virtual area
*/
#define H_KERN_VIRT_START ASM_CONST(0xD000000000000000)
-#define H_KERN_VIRT_SIZE ASM_CONST(0x0000100000000000)
+#define H_KERN_VIRT_SIZE ASM_CONST(0x0000400000000000) /* 64T */
/*
* The vmalloc space starts at the beginning of that region, and
@@ -48,9 +48,11 @@
* (we keep a quarter for the virtual memmap)
*/
#define H_VMALLOC_START H_KERN_VIRT_START
-#define H_VMALLOC_SIZE (H_KERN_VIRT_SIZE >> 1)
+#define H_VMALLOC_SIZE ASM_CONST(0x380000000000) /* 56T */
#define H_VMALLOC_END (H_VMALLOC_START + H_VMALLOC_SIZE)
+#define H_KERN_IO_START H_VMALLOC_END
+
/*
* Region IDs
*/
@@ -89,6 +91,10 @@ static inline int hash__pgd_bad(pgd_t pgd)
{
return (pgd_val(pgd) == 0);
}
+#ifdef CONFIG_STRICT_KERNEL_RWX
+extern void hash__mark_rodata_ro(void);
+extern void hash__mark_initmem_nx(void);
+#endif
extern void hpte_need_flush(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, unsigned long pte, int huge);
diff --git a/arch/powerpc/include/asm/book3s/64/hugetlb.h b/arch/powerpc/include/asm/book3s/64/hugetlb.h
index 6666cd366596..2d1ca488ca44 100644
--- a/arch/powerpc/include/asm/book3s/64/hugetlb.h
+++ b/arch/powerpc/include/asm/book3s/64/hugetlb.h
@@ -50,4 +50,12 @@ static inline pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
else
return entry;
}
+
+#ifdef CONFIG_ARCH_HAS_GIGANTIC_PAGE
+static inline bool gigantic_page_supported(void)
+{
+ return true;
+}
+#endif
+
#endif
diff --git a/arch/powerpc/include/asm/book3s/64/mmu-hash.h b/arch/powerpc/include/asm/book3s/64/mmu-hash.h
index 6981a52b3887..508275bb05d5 100644
--- a/arch/powerpc/include/asm/book3s/64/mmu-hash.h
+++ b/arch/powerpc/include/asm/book3s/64/mmu-hash.h
@@ -104,6 +104,7 @@
#define HPTE_R_C ASM_CONST(0x0000000000000080)
#define HPTE_R_R ASM_CONST(0x0000000000000100)
#define HPTE_R_KEY_LO ASM_CONST(0x0000000000000e00)
+#define HPTE_R_KEY (HPTE_R_KEY_LO | HPTE_R_KEY_HI)
#define HPTE_V_1TB_SEG ASM_CONST(0x4000000000000000)
#define HPTE_V_VRMA_MASK ASM_CONST(0x4001ffffff000000)
@@ -468,7 +469,7 @@ extern int htab_bolt_mapping(unsigned long vstart, unsigned long vend,
int psize, int ssize);
int htab_remove_mapping(unsigned long vstart, unsigned long vend,
int psize, int ssize);
-extern void add_gpage(u64 addr, u64 page_size, unsigned long number_of_pages);
+extern void pseries_add_gpage(u64 addr, u64 page_size, unsigned long number_of_pages);
extern void demote_segment_4k(struct mm_struct *mm, unsigned long addr);
#ifdef CONFIG_PPC_PSERIES
diff --git a/arch/powerpc/include/asm/book3s/64/mmu.h b/arch/powerpc/include/asm/book3s/64/mmu.h
index 77529a3e3811..c3b00e8ff791 100644
--- a/arch/powerpc/include/asm/book3s/64/mmu.h
+++ b/arch/powerpc/include/asm/book3s/64/mmu.h
@@ -59,13 +59,14 @@ extern struct patb_entry *partition_tb;
#define PRTS_MASK 0x1f /* process table size field */
#define PRTB_MASK 0x0ffffffffffff000UL
-/*
- * Limit process table to PAGE_SIZE table. This
- * also limit the max pid we can support.
- * MAX_USER_CONTEXT * 16 bytes of space.
- */
-#define PRTB_SIZE_SHIFT (CONTEXT_BITS + 4)
-#define PRTB_ENTRIES (1ul << CONTEXT_BITS)
+/* Number of supported PID bits */
+extern unsigned int mmu_pid_bits;
+
+/* Base PID to allocate from */
+extern unsigned int mmu_base_pid;
+
+#define PRTB_SIZE_SHIFT (mmu_pid_bits + 4)
+#define PRTB_ENTRIES (1ul << mmu_pid_bits)
/*
* Power9 currently only support 64K partition table size.
@@ -82,6 +83,9 @@ typedef struct {
mm_context_id_t id;
u16 user_psize; /* page size index */
+ /* Number of bits in the mm_cpumask */
+ atomic_t active_cpus;
+
/* NPU NMMU context */
struct npu_context *npu_context;
@@ -96,11 +100,6 @@ typedef struct {
#ifdef CONFIG_PPC_SUBPAGE_PROT
struct subpage_prot_table spt;
#endif /* CONFIG_PPC_SUBPAGE_PROT */
-#ifdef CONFIG_PPC_ICSWX
- struct spinlock *cop_lockp; /* guard acop and cop_pid */
- unsigned long acop; /* mask of enabled coprocessor types */
- unsigned int cop_pid; /* pid value used with coprocessors */
-#endif /* CONFIG_PPC_ICSWX */
#ifdef CONFIG_PPC_64K_PAGES
/* for 4K PTE fragment support */
void *pte_frag;
diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc.h b/arch/powerpc/include/asm/book3s/64/pgalloc.h
index cd5e7aa8cc34..1fcfa425cefa 100644
--- a/arch/powerpc/include/asm/book3s/64/pgalloc.h
+++ b/arch/powerpc/include/asm/book3s/64/pgalloc.h
@@ -41,8 +41,6 @@ extern struct kmem_cache *pgtable_cache[];
pgtable_cache[(shift) - 1]; \
})
-#define PGALLOC_GFP GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO
-
extern pte_t *pte_fragment_alloc(struct mm_struct *, unsigned long, int);
extern void pte_fragment_free(unsigned long *, int);
extern void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift);
@@ -53,10 +51,11 @@ extern void __tlb_remove_table(void *_table);
static inline pgd_t *radix__pgd_alloc(struct mm_struct *mm)
{
#ifdef CONFIG_PPC_64K_PAGES
- return (pgd_t *)__get_free_page(PGALLOC_GFP);
+ return (pgd_t *)__get_free_page(pgtable_gfp_flags(mm, PGALLOC_GFP));
#else
struct page *page;
- page = alloc_pages(PGALLOC_GFP | __GFP_REPEAT, 4);
+ page = alloc_pages(pgtable_gfp_flags(mm, PGALLOC_GFP | __GFP_RETRY_MAYFAIL),
+ 4);
if (!page)
return NULL;
return (pgd_t *) page_address(page);
@@ -76,7 +75,8 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
if (radix_enabled())
return radix__pgd_alloc(mm);
- return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE), GFP_KERNEL);
+ return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE),
+ pgtable_gfp_flags(mm, GFP_KERNEL));
}
static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
@@ -93,7 +93,8 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
{
- return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE), GFP_KERNEL);
+ return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE),
+ pgtable_gfp_flags(mm, GFP_KERNEL));
}
static inline void pud_free(struct mm_struct *mm, pud_t *pud)
@@ -119,7 +120,8 @@ static inline void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pud,
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
{
- return kmem_cache_alloc(PGT_CACHE(PMD_CACHE_INDEX), GFP_KERNEL);
+ return kmem_cache_alloc(PGT_CACHE(PMD_CACHE_INDEX),
+ pgtable_gfp_flags(mm, GFP_KERNEL));
}
static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
@@ -168,7 +170,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
struct page *page;
pte_t *pte;
- pte = pte_alloc_one_kernel(mm, address);
+ pte = (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO | __GFP_ACCOUNT);
if (!pte)
return NULL;
page = virt_to_page(pte);
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 85bc9875c3be..b9aff515b4de 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -5,6 +5,7 @@
#ifndef __ASSEMBLY__
#include <linux/mmdebug.h>
+#include <linux/bug.h>
#endif
/*
@@ -79,6 +80,9 @@
#define _PAGE_SOFT_DIRTY _RPAGE_SW3 /* software: software dirty tracking */
#define _PAGE_SPECIAL _RPAGE_SW2 /* software: special page */
+#define _PAGE_DEVMAP _RPAGE_SW1 /* software: ZONE_DEVICE page */
+#define __HAVE_ARCH_PTE_DEVMAP
+
/*
* Drivers request for cache inhibited pte mapping using _PAGE_NO_CACHE
* Instead of fixing all of them, add an alternate define which
@@ -268,8 +272,10 @@ extern unsigned long __vmalloc_end;
extern unsigned long __kernel_virt_start;
extern unsigned long __kernel_virt_size;
+extern unsigned long __kernel_io_start;
#define KERN_VIRT_START __kernel_virt_start
#define KERN_VIRT_SIZE __kernel_virt_size
+#define KERN_IO_START __kernel_io_start
extern struct page *vmemmap;
extern unsigned long ioremap_bot;
extern unsigned long pci_io_base;
@@ -294,7 +300,6 @@ extern unsigned long pci_io_base;
* PHB_IO_BASE = ISA_IO_BASE + 64K to ISA_IO_BASE + 2G, PHB IO spaces
* IOREMAP_BASE = ISA_IO_BASE + 2G to VMALLOC_START + PGTABLE_RANGE
*/
-#define KERN_IO_START (KERN_VIRT_START + (KERN_VIRT_SIZE >> 1))
#define FULL_IO_SIZE 0x80000000ul
#define ISA_IO_BASE (KERN_IO_START)
#define ISA_IO_END (KERN_IO_START + 0x10000ul)
@@ -405,6 +410,11 @@ static inline int pte_write(pte_t pte)
return __pte_write(pte) || pte_savedwrite(pte);
}
+static inline int pte_read(pte_t pte)
+{
+ return !!(pte_raw(pte) & cpu_to_be64(_PAGE_READ));
+}
+
#define __HAVE_ARCH_PTEP_SET_WRPROTECT
static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
pte_t *ptep)
@@ -599,6 +609,24 @@ static inline pte_t pte_mkhuge(pte_t pte)
return pte;
}
+static inline pte_t pte_mkdevmap(pte_t pte)
+{
+ return __pte(pte_val(pte) | _PAGE_SPECIAL|_PAGE_DEVMAP);
+}
+
+/*
+ * This is potentially called with a pmd as the argument, in which case it's not
+ * safe to check _PAGE_DEVMAP unless we also confirm that _PAGE_PTE is set.
+ * That's because the bit we use for _PAGE_DEVMAP is not reserved for software
+ * use in page directory entries (ie. non-ptes).
+ */
+static inline int pte_devmap(pte_t pte)
+{
+ u64 mask = cpu_to_be64(_PAGE_DEVMAP | _PAGE_PTE);
+
+ return (pte_raw(pte) & mask) == mask;
+}
+
static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
{
/* FIXME!! check whether this need to be a conditional */
@@ -1145,7 +1173,40 @@ static inline bool arch_needs_pgtable_deposit(void)
return false;
return true;
}
+extern void serialize_against_pte_lookup(struct mm_struct *mm);
+
+static inline pmd_t pmd_mkdevmap(pmd_t pmd)
+{
+ return __pmd(pmd_val(pmd) | (_PAGE_PTE | _PAGE_DEVMAP));
+}
+
+static inline int pmd_devmap(pmd_t pmd)
+{
+ return pte_devmap(pmd_pte(pmd));
+}
+
+static inline int pud_devmap(pud_t pud)
+{
+ return 0;
+}
+
+static inline int pgd_devmap(pgd_t pgd)
+{
+ return 0;
+}
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
+
+static inline const int pud_pfn(pud_t pud)
+{
+ /*
+ * Currently all calls to pud_pfn() are gated around a pud_devmap()
+ * check so this should never be used. If it grows another user we
+ * want to know about it.
+ */
+ BUILD_BUG();
+ return 0;
+}
+
#endif /* __ASSEMBLY__ */
#endif /* _ASM_POWERPC_BOOK3S_64_PGTABLE_H_ */
diff --git a/arch/powerpc/include/asm/book3s/64/radix.h b/arch/powerpc/include/asm/book3s/64/radix.h
index ac16d1943022..1e5ba94e62ef 100644
--- a/arch/powerpc/include/asm/book3s/64/radix.h
+++ b/arch/powerpc/include/asm/book3s/64/radix.h
@@ -110,12 +110,19 @@
*/
#define RADIX_VMEMMAP_BASE (RADIX_VMALLOC_END)
+#define RADIX_KERN_IO_START (RADIX_KERN_VIRT_START + (RADIX_KERN_VIRT_SIZE >> 1))
+
#ifndef __ASSEMBLY__
#define RADIX_PTE_TABLE_SIZE (sizeof(pte_t) << RADIX_PTE_INDEX_SIZE)
#define RADIX_PMD_TABLE_SIZE (sizeof(pmd_t) << RADIX_PMD_INDEX_SIZE)
#define RADIX_PUD_TABLE_SIZE (sizeof(pud_t) << RADIX_PUD_INDEX_SIZE)
#define RADIX_PGD_TABLE_SIZE (sizeof(pgd_t) << RADIX_PGD_INDEX_SIZE)
+#ifdef CONFIG_STRICT_KERNEL_RWX
+extern void radix__mark_rodata_ro(void);
+extern void radix__mark_initmem_nx(void);
+#endif
+
static inline unsigned long __radix_pte_update(pte_t *ptep, unsigned long clr,
unsigned long set)
{
@@ -252,7 +259,7 @@ static inline int radix__pgd_bad(pgd_t pgd)
static inline int radix__pmd_trans_huge(pmd_t pmd)
{
- return !!(pmd_val(pmd) & _PAGE_PTE);
+ return (pmd_val(pmd) & (_PAGE_PTE | _PAGE_DEVMAP)) == _PAGE_PTE;
}
static inline pmd_t radix__pmd_mkhuge(pmd_t pmd)
diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
index cc7fbde4f53c..9b433a624bf3 100644
--- a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
+++ b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
@@ -22,22 +22,21 @@ extern void radix__flush_tlb_kernel_range(unsigned long start, unsigned long end
extern void radix__local_flush_tlb_mm(struct mm_struct *mm);
extern void radix__local_flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
-extern void radix__local_flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr);
extern void radix__local_flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr,
int psize);
extern void radix__tlb_flush(struct mmu_gather *tlb);
#ifdef CONFIG_SMP
extern void radix__flush_tlb_mm(struct mm_struct *mm);
extern void radix__flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
-extern void radix__flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr);
extern void radix__flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr,
int psize);
#else
#define radix__flush_tlb_mm(mm) radix__local_flush_tlb_mm(mm)
#define radix__flush_tlb_page(vma,addr) radix__local_flush_tlb_page(vma,addr)
#define radix__flush_tlb_page_psize(mm,addr,p) radix__local_flush_tlb_page_psize(mm,addr,p)
-#define radix__flush_tlb_pwc(tlb, addr) radix__local_flush_tlb_pwc(tlb, addr)
#endif
+extern void radix__flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr);
+extern void radix__flush_tlb_collapsed_pmd(struct mm_struct *mm, unsigned long addr);
extern void radix__flush_tlb_lpid_va(unsigned long lpid, unsigned long gpa,
unsigned long page_size);
extern void radix__flush_tlb_lpid(unsigned long lpid);
diff --git a/arch/powerpc/include/asm/bug.h b/arch/powerpc/include/asm/bug.h
index 0151af6c2a50..7ee763d3bea9 100644
--- a/arch/powerpc/include/asm/bug.h
+++ b/arch/powerpc/include/asm/bug.h
@@ -18,7 +18,7 @@
#include <asm/asm-offsets.h>
#ifdef CONFIG_DEBUG_BUGVERBOSE
.macro EMIT_BUG_ENTRY addr,file,line,flags
- .section __bug_table,"a"
+ .section __bug_table,"aw"
5001: PPC_LONG \addr, 5002f
.short \line, \flags
.org 5001b+BUG_ENTRY_SIZE
@@ -29,7 +29,7 @@
.endm
#else
.macro EMIT_BUG_ENTRY addr,file,line,flags
- .section __bug_table,"a"
+ .section __bug_table,"aw"
5001: PPC_LONG \addr
.short \flags
.org 5001b+BUG_ENTRY_SIZE
@@ -42,14 +42,14 @@
sizeof(struct bug_entry), respectively */
#ifdef CONFIG_DEBUG_BUGVERBOSE
#define _EMIT_BUG_ENTRY \
- ".section __bug_table,\"a\"\n" \
+ ".section __bug_table,\"aw\"\n" \
"2:\t" PPC_LONG "1b, %0\n" \
"\t.short %1, %2\n" \
".org 2b+%3\n" \
".previous\n"
#else
#define _EMIT_BUG_ENTRY \
- ".section __bug_table,\"a\"\n" \
+ ".section __bug_table,\"aw\"\n" \
"2:\t" PPC_LONG "1b\n" \
"\t.short %2\n" \
".org 2b+%3\n" \
@@ -133,6 +133,7 @@ extern int do_page_fault(struct pt_regs *, unsigned long, unsigned long);
extern void bad_page_fault(struct pt_regs *, unsigned long, int);
extern void _exception(int, struct pt_regs *, int, unsigned long);
extern void die(const char *, struct pt_regs *, long);
+extern bool die_will_crash(void);
#endif /* !__ASSEMBLY__ */
diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
index 5a90292afbad..d122f7f957ce 100644
--- a/arch/powerpc/include/asm/cache.h
+++ b/arch/powerpc/include/asm/cache.h
@@ -5,7 +5,7 @@
/* bytes per L1 cache line */
-#if defined(CONFIG_8xx) || defined(CONFIG_403GCX)
+#if defined(CONFIG_PPC_8xx) || defined(CONFIG_403GCX)
#define L1_CACHE_SHIFT 4
#define MAX_COPY_PREFETCH 1
#elif defined(CONFIG_PPC_E500MC)
diff --git a/arch/powerpc/include/asm/code-patching.h b/arch/powerpc/include/asm/code-patching.h
index abef812de7f8..5482928eea1b 100644
--- a/arch/powerpc/include/asm/code-patching.h
+++ b/arch/powerpc/include/asm/code-patching.h
@@ -83,8 +83,16 @@ static inline unsigned long ppc_function_entry(void *func)
* On PPC64 ABIv1 the function pointer actually points to the
* function's descriptor. The first entry in the descriptor is the
* address of the function text.
+ *
+ * However, we may also receive pointer to an assembly symbol. To
+ * detect that, we first check if the function pointer we receive
+ * already points to kernel/module text and we only dereference it
+ * if it doesn't.
*/
- return ((func_descr_t *)func)->entry;
+ if (kernel_text_address((unsigned long)func))
+ return (unsigned long)func;
+ else
+ return ((func_descr_t *)func)->entry;
#else
return (unsigned long)func;
#endif
diff --git a/arch/powerpc/include/asm/compat.h b/arch/powerpc/include/asm/compat.h
index 4f2df589ec1d..f256e1d14a14 100644
--- a/arch/powerpc/include/asm/compat.h
+++ b/arch/powerpc/include/asm/compat.h
@@ -109,7 +109,6 @@ struct compat_statfs {
int f_spare[4];
};
-#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
#define COMPAT_RLIM_INFINITY 0xffffffff
typedef u32 compat_old_sigset_t;
diff --git a/arch/powerpc/include/asm/cpuidle.h b/arch/powerpc/include/asm/cpuidle.h
index 52586f9956bb..eb43b5c3a7b5 100644
--- a/arch/powerpc/include/asm/cpuidle.h
+++ b/arch/powerpc/include/asm/cpuidle.h
@@ -67,6 +67,17 @@
#define ERR_DEEP_STATE_ESL_MISMATCH -2
#ifndef __ASSEMBLY__
+/* Additional SPRs that need to be saved/restored during stop */
+struct stop_sprs {
+ u64 pid;
+ u64 ldbar;
+ u64 fscr;
+ u64 hfscr;
+ u64 mmcr1;
+ u64 mmcr2;
+ u64 mmcra;
+};
+
extern u32 pnv_fastsleep_workaround_at_entry[];
extern u32 pnv_fastsleep_workaround_at_exit[];
@@ -90,20 +101,4 @@ static inline void report_invalid_psscr_val(u64 psscr_val, int err)
#endif
-/* Idle state entry routines */
-#ifdef CONFIG_PPC_P7_NAP
-#define IDLE_STATE_ENTER_SEQ(IDLE_INST) \
- /* Magic NAP/SLEEP/WINKLE mode enter sequence */ \
- std r0,0(r1); \
- ptesync; \
- ld r0,0(r1); \
-236: cmpd cr0,r0,r0; \
- bne 236b; \
- IDLE_INST; \
-
-#define IDLE_STATE_ENTER_SEQ_NORET(IDLE_INST) \
- IDLE_STATE_ENTER_SEQ(IDLE_INST) \
- b .
-#endif /* CONFIG_PPC_P7_NAP */
-
#endif
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index d02ad93bf708..a9bf921f4efc 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -513,7 +513,7 @@ enum {
#else
CPU_FTRS_GENERIC_32 |
#endif
-#ifdef CONFIG_8xx
+#ifdef CONFIG_PPC_8xx
CPU_FTRS_8XX |
#endif
#ifdef CONFIG_40x
@@ -565,7 +565,7 @@ enum {
#else
CPU_FTRS_GENERIC_32 &
#endif
-#ifdef CONFIG_8xx
+#ifdef CONFIG_PPC_8xx
CPU_FTRS_8XX &
#endif
#ifdef CONFIG_40x
diff --git a/arch/powerpc/include/asm/dbell.h b/arch/powerpc/include/asm/dbell.h
index f70cbfe0ec04..9f2ae0d25e15 100644
--- a/arch/powerpc/include/asm/dbell.h
+++ b/arch/powerpc/include/asm/dbell.h
@@ -56,6 +56,19 @@ static inline void ppc_msgsync(void)
: : "i" (CPU_FTR_HVMODE|CPU_FTR_ARCH_300));
}
+static inline void _ppc_msgclr(u32 msg)
+{
+ __asm__ __volatile__ (ASM_FTR_IFSET(PPC_MSGCLR(%1), PPC_MSGCLRP(%1), %0)
+ : : "i" (CPU_FTR_HVMODE), "r" (msg));
+}
+
+static inline void ppc_msgclr(enum ppc_dbell type)
+{
+ u32 msg = PPC_DBELL_TYPE(type);
+
+ _ppc_msgclr(msg);
+}
+
#else /* CONFIG_PPC_BOOK3S */
#define PPC_DBELL_MSGTYPE PPC_DBELL
diff --git a/arch/powerpc/include/asm/delay.h b/arch/powerpc/include/asm/delay.h
index 52e4d54da2a9..3df4417dd9c8 100644
--- a/arch/powerpc/include/asm/delay.h
+++ b/arch/powerpc/include/asm/delay.h
@@ -2,6 +2,7 @@
#define _ASM_POWERPC_DELAY_H
#ifdef __KERNEL__
+#include <linux/processor.h>
#include <asm/time.h>
/*
@@ -58,11 +59,18 @@ extern void udelay(unsigned long usecs);
typeof(condition) __ret; \
unsigned long __loops = tb_ticks_per_usec * timeout; \
unsigned long __start = get_tbl(); \
- while (!(__ret = (condition)) && (tb_ticks_since(__start) <= __loops)) \
- if (delay) \
+ \
+ if (delay) { \
+ while (!(__ret = (condition)) && \
+ (tb_ticks_since(__start) <= __loops)) \
udelay(delay); \
- else \
- cpu_relax(); \
+ } else { \
+ spin_begin(); \
+ while (!(__ret = (condition)) && \
+ (tb_ticks_since(__start) <= __loops)) \
+ spin_cpu_relax(); \
+ spin_end(); \
+ } \
if (!__ret) \
__ret = (condition); \
__ret; \
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 181a095468e4..eaece3d3e225 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -17,10 +17,6 @@
#include <asm/io.h>
#include <asm/swiotlb.h>
-#ifdef CONFIG_PPC64
-#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-#endif
-
/* Some dma direct funcs must be visible for use in other dma_ops */
extern void *__dma_direct_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag,
@@ -116,7 +112,6 @@ static inline void set_dma_offset(struct device *dev, dma_addr_t off)
#define HAVE_ARCH_DMA_SET_MASK 1
extern int dma_set_mask(struct device *dev, u64 dma_mask);
-extern int __dma_set_mask(struct device *dev, u64 dma_mask);
extern u64 __dma_get_required_mask(struct device *dev);
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h
index 8e37b71674f4..9847ae3a12d1 100644
--- a/arch/powerpc/include/asm/eeh.h
+++ b/arch/powerpc/include/asm/eeh.h
@@ -131,7 +131,6 @@ static inline bool eeh_pe_passed(struct eeh_pe *pe)
struct eeh_dev {
int mode; /* EEH mode */
int class_code; /* Class code of the device */
- int config_addr; /* Config address */
int pe_config_addr; /* PE config address */
u32 config_space[16]; /* Saved PCI config space */
int pcix_cap; /* Saved PCIx capability */
@@ -141,7 +140,6 @@ struct eeh_dev {
struct eeh_pe *pe; /* Associated PE */
struct list_head list; /* Form link list in the PE */
struct list_head rmv_list; /* Record the removed edevs */
- struct pci_controller *phb; /* Associated PHB */
struct pci_dn *pdn; /* Associated PCI device node */
struct pci_dev *pdev; /* Associated PCI device */
bool in_error; /* Error flag for edev */
@@ -262,7 +260,8 @@ typedef void *(*eeh_traverse_func)(void *data, void *flag);
void eeh_set_pe_aux_size(int size);
int eeh_phb_pe_create(struct pci_controller *phb);
struct eeh_pe *eeh_phb_pe_get(struct pci_controller *phb);
-struct eeh_pe *eeh_pe_get(struct eeh_dev *edev);
+struct eeh_pe *eeh_pe_get(struct pci_controller *phb,
+ int pe_no, int config_addr);
int eeh_add_to_parent_pe(struct eeh_dev *edev);
int eeh_rmv_from_parent_pe(struct eeh_dev *edev);
void eeh_pe_update_time_stamp(struct eeh_pe *pe);
diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
index 09bde6e34f5d..548d9a411a0d 100644
--- a/arch/powerpc/include/asm/elf.h
+++ b/arch/powerpc/include/asm/elf.h
@@ -23,12 +23,13 @@
#define CORE_DUMP_USE_REGSET
#define ELF_EXEC_PAGESIZE PAGE_SIZE
-/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
- use of this is to invoke "./ld.so someprog" to test out a new version of
- the loader. We need to make sure that it is out of the way of the program
- that it will "exec", and that there is sufficient room for the brk. */
-
-#define ELF_ET_DYN_BASE 0x20000000
+/*
+ * This is the base location for PIE (ET_DYN with INTERP) loads. On
+ * 64-bit, this is raised to 4GB to leave the entire 32-bit address
+ * space open for things that want to use the area for 32-bit pointers.
+ */
+#define ELF_ET_DYN_BASE (is_32bit_task() ? 0x000400000UL : \
+ 0x100000000UL)
#define ELF_CORE_EFLAGS (is_elf2_task() ? 2 : 0)
diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
index 183d73b6ed99..9a318973af05 100644
--- a/arch/powerpc/include/asm/exception-64s.h
+++ b/arch/powerpc/include/asm/exception-64s.h
@@ -36,20 +36,38 @@
*/
#include <asm/head-64.h>
+/* PACA save area offsets (exgen, exmc, etc) */
#define EX_R9 0
#define EX_R10 8
#define EX_R11 16
#define EX_R12 24
#define EX_R13 32
-#define EX_SRR0 40
-#define EX_DAR 48
-#define EX_DSISR 56
-#define EX_CCR 60
-#define EX_R3 64
-#define EX_LR 72
-#define EX_CFAR 80
-#define EX_PPR 88 /* SMT thread status register (priority) */
-#define EX_CTR 96
+#define EX_DAR 40
+#define EX_DSISR 48
+#define EX_CCR 52
+#define EX_CFAR 56
+#define EX_PPR 64
+#if defined(CONFIG_RELOCATABLE)
+#define EX_CTR 72
+#define EX_SIZE 10 /* size in u64 units */
+#else
+#define EX_SIZE 9 /* size in u64 units */
+#endif
+
+/*
+ * EX_LR is only used in EXSLB and where it does not overlap with EX_DAR
+ * EX_CCR similarly with DSISR, but being 4 byte registers there is a hole
+ * in the save area so it's not necessary to overlap them. Could be used
+ * for future savings though if another 4 byte register was to be saved.
+ */
+#define EX_LR EX_DAR
+
+/*
+ * EX_R3 is only used by the bad_stack handler. bad_stack reloads and
+ * saves DAR from SPRN_DAR, and EX_DAR is not used. So EX_R3 can overlap
+ * with EX_DAR.
+ */
+#define EX_R3 EX_DAR
#ifdef CONFIG_RELOCATABLE
#define __EXCEPTION_RELON_PROLOG_PSERIES_1(label, h) \
@@ -236,6 +254,19 @@ END_FTR_SECTION_NESTED(ftr,ftr,943)
#define kvmppc_interrupt kvmppc_interrupt_pr
#endif
+/*
+ * Branch to label using its 0xC000 address. This results in instruction
+ * address suitable for MSR[IR]=0 or 1, which allows relocation to be turned
+ * on using mtmsr rather than rfid.
+ *
+ * This could set the 0xc bits for !RELOCATABLE as an immediate, rather than
+ * load KBASE for a slight optimisation.
+ */
+#define BRANCH_TO_C000(reg, label) \
+ __LOAD_HANDLER(reg, label); \
+ mtctr reg; \
+ bctr
+
#ifdef CONFIG_RELOCATABLE
#define BRANCH_TO_COMMON(reg, label) \
__LOAD_HANDLER(reg, label); \
diff --git a/arch/powerpc/include/asm/fadump.h b/arch/powerpc/include/asm/fadump.h
index 60b91084f33c..5a23010af600 100644
--- a/arch/powerpc/include/asm/fadump.h
+++ b/arch/powerpc/include/asm/fadump.h
@@ -43,6 +43,9 @@
#define MIN_BOOT_MEM (((RMA_END < (0x1UL << 28)) ? (0x1UL << 28) : RMA_END) \
+ (0x1UL << 26))
+/* The upper limit percentage for user specified boot memory size (25%) */
+#define MAX_BOOT_MEM_RATIO 4
+
#define memblock_num_regions(memblock_type) (memblock.memblock_type.cnt)
/* Firmware provided dump sections */
@@ -200,16 +203,19 @@ struct fad_crash_memory_ranges {
unsigned long long size;
};
+extern int is_fadump_boot_memory_area(u64 addr, ulong size);
extern int early_init_dt_scan_fw_dump(unsigned long node,
const char *uname, int depth, void *data);
extern int fadump_reserve_mem(void);
extern int setup_fadump(void);
extern int is_fadump_active(void);
+extern int should_fadump_crash(void);
extern void crash_fadump(struct pt_regs *, const char *);
extern void fadump_cleanup(void);
#else /* CONFIG_FA_DUMP */
static inline int is_fadump_active(void) { return 0; }
+static inline int should_fadump_crash(void) { return 0; }
static inline void crash_fadump(struct pt_regs *regs, const char *str) { }
#endif
#endif
diff --git a/arch/powerpc/include/asm/feature-fixups.h b/arch/powerpc/include/asm/feature-fixups.h
index 2de2319b99e2..8f88f771cc55 100644
--- a/arch/powerpc/include/asm/feature-fixups.h
+++ b/arch/powerpc/include/asm/feature-fixups.h
@@ -19,11 +19,11 @@
*/
#if defined(CONFIG_PPC64) && !defined(__powerpc64__)
/* 64 bits kernel, 32 bits code (ie. vdso32) */
-#define FTR_ENTRY_LONG .llong
+#define FTR_ENTRY_LONG .8byte
#define FTR_ENTRY_OFFSET .long 0xffffffff; .long
#elif defined(CONFIG_PPC64)
-#define FTR_ENTRY_LONG .llong
-#define FTR_ENTRY_OFFSET .llong
+#define FTR_ENTRY_LONG .8byte
+#define FTR_ENTRY_OFFSET .8byte
#else
#define FTR_ENTRY_LONG .long
#define FTR_ENTRY_OFFSET .long
diff --git a/arch/powerpc/include/asm/fixmap.h b/arch/powerpc/include/asm/fixmap.h
index 4508b322f2cd..6c40dfda5912 100644
--- a/arch/powerpc/include/asm/fixmap.h
+++ b/arch/powerpc/include/asm/fixmap.h
@@ -17,6 +17,7 @@
#ifndef __ASSEMBLY__
#include <linux/kernel.h>
#include <asm/page.h>
+#include <asm/pgtable.h>
#ifdef CONFIG_HIGHMEM
#include <linux/threads.h>
#include <asm/kmap_types.h>
@@ -62,9 +63,6 @@ enum fixed_addresses {
__end_of_fixed_addresses
};
-extern void __set_fixmap (enum fixed_addresses idx,
- phys_addr_t phys, pgprot_t flags);
-
#define __FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
#define FIXADDR_START (FIXADDR_TOP - __FIXADDR_SIZE)
@@ -72,5 +70,11 @@ extern void __set_fixmap (enum fixed_addresses idx,
#include <asm-generic/fixmap.h>
+static inline void __set_fixmap(enum fixed_addresses idx,
+ phys_addr_t phys, pgprot_t flags)
+{
+ map_kernel_page(fix_to_virt(idx), phys, pgprot_val(flags));
+}
+
#endif /* !__ASSEMBLY__ */
#endif
diff --git a/arch/powerpc/include/asm/fs_pd.h b/arch/powerpc/include/asm/fs_pd.h
index f79d6c74eb2a..8def56ec05c6 100644
--- a/arch/powerpc/include/asm/fs_pd.h
+++ b/arch/powerpc/include/asm/fs_pd.h
@@ -26,7 +26,7 @@
#define cpm2_unmap(addr) do {} while(0)
#endif
-#ifdef CONFIG_8xx
+#ifdef CONFIG_PPC_8xx
#include <asm/8xx_immap.h>
extern immap_t __iomem *mpc8xx_immr;
diff --git a/arch/powerpc/include/asm/futex.h b/arch/powerpc/include/asm/futex.h
index eaada6c92344..719ed9b61ea7 100644
--- a/arch/powerpc/include/asm/futex.h
+++ b/arch/powerpc/include/asm/futex.h
@@ -29,18 +29,10 @@
: "b" (uaddr), "i" (-EFAULT), "r" (oparg) \
: "cr0", "memory")
-static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+ u32 __user *uaddr)
{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
int oldval = 0, ret;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
- return -EFAULT;
pagefault_disable();
@@ -66,17 +58,9 @@ static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
pagefault_enable();
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
- case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
- case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
- case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
- case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
- case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
- default: ret = -ENOSYS;
- }
- }
+ if (!ret)
+ *oval = oldval;
+
return ret;
}
diff --git a/arch/powerpc/include/asm/hardirq.h b/arch/powerpc/include/asm/hardirq.h
index 8add8b861e8d..c97603d617e3 100644
--- a/arch/powerpc/include/asm/hardirq.h
+++ b/arch/powerpc/include/asm/hardirq.h
@@ -12,6 +12,10 @@ typedef struct {
unsigned int mce_exceptions;
unsigned int spurious_irqs;
unsigned int hmi_exceptions;
+ unsigned int sreset_irqs;
+#ifdef CONFIG_PPC_WATCHDOG
+ unsigned int soft_nmi_irqs;
+#endif
#ifdef CONFIG_PPC_DOORBELL
unsigned int doorbell_irqs;
#endif
diff --git a/arch/powerpc/include/asm/head-64.h b/arch/powerpc/include/asm/head-64.h
index 86eb87382031..d81eac5b509f 100644
--- a/arch/powerpc/include/asm/head-64.h
+++ b/arch/powerpc/include/asm/head-64.h
@@ -3,6 +3,7 @@
#include <asm/cache.h>
+#ifdef __ASSEMBLY__
/*
* We can't do CPP stringification and concatination directly into the section
* name for some reason, so these macros can do it for us.
@@ -49,8 +50,8 @@
* CLOSE_FIXED_SECTION() or elsewhere, there may be something
* unexpected being added there. Remove the '. = x_len' line, rebuild, and
* check what is pushing the section down.
- * - If the build dies in linking, check arch/powerpc/kernel/vmlinux.lds.S
- * for instructions.
+ * - If the build dies in linking, check arch/powerpc/tools/head_check.sh
+ * comments.
* - If the kernel crashes or hangs in very early boot, it could be linker
* stubs at the start of the main text.
*/
@@ -63,11 +64,29 @@
. = 0x0; \
start_##sname:
+/*
+ * .linker_stub_catch section is used to catch linker stubs from being
+ * inserted in our .text section, above the start_text label (which breaks
+ * the ABS_ADDR calculation). See kernel/vmlinux.lds.S and tools/head_check.sh
+ * for more details. We would prefer to just keep a cacheline (0x80), but
+ * 0x100 seems to be how the linker aligns branch stub groups.
+ */
+#ifdef CONFIG_LD_HEAD_STUB_CATCH
+#define OPEN_TEXT_SECTION(start) \
+ .section ".linker_stub_catch","ax",@progbits; \
+linker_stub_catch: \
+ . = 0x4; \
+ text_start = (start) + 0x100; \
+ .section ".text","ax",@progbits; \
+ .balign 0x100; \
+start_text:
+#else
#define OPEN_TEXT_SECTION(start) \
text_start = (start); \
.section ".text","ax",@progbits; \
. = 0x0; \
start_text:
+#endif
#define ZERO_FIXED_SECTION(sname, start, end) \
sname##_start = (start); \
@@ -397,4 +416,6 @@ name:
EXC_COMMON_BEGIN(name); \
STD_EXCEPTION_COMMON(realvec + 0x2, name, hdlr); \
+#endif /* __ASSEMBLY__ */
+
#endif /* _ASM_POWERPC_HEAD_64_H */
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 7f4025a6c69e..b8a0fb442c64 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -218,18 +218,4 @@ static inline pte_t *hugepte_offset(hugepd_t hpd, unsigned long addr,
}
#endif /* CONFIG_HUGETLB_PAGE */
-/*
- * FSL Book3E platforms require special gpage handling - the gpages
- * are reserved early in the boot process by memblock instead of via
- * the .dts as on IBM platforms.
- */
-#if defined(CONFIG_HUGETLB_PAGE) && (defined(CONFIG_PPC_FSL_BOOK3E) || \
- defined(CONFIG_PPC_8xx))
-extern void __init reserve_hugetlb_gpages(void);
-#else
-static inline void reserve_hugetlb_gpages(void)
-{
-}
-#endif
-
#endif /* _ASM_POWERPC_HUGETLB_H */
diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h
index d73755fafbb0..3d34dc0869f6 100644
--- a/arch/powerpc/include/asm/hvcall.h
+++ b/arch/powerpc/include/asm/hvcall.h
@@ -280,7 +280,18 @@
#define H_RESIZE_HPT_COMMIT 0x370
#define H_REGISTER_PROC_TBL 0x37C
#define H_SIGNAL_SYS_RESET 0x380
-#define MAX_HCALL_OPCODE H_SIGNAL_SYS_RESET
+#define H_INT_GET_SOURCE_INFO 0x3A8
+#define H_INT_SET_SOURCE_CONFIG 0x3AC
+#define H_INT_GET_SOURCE_CONFIG 0x3B0
+#define H_INT_GET_QUEUE_INFO 0x3B4
+#define H_INT_SET_QUEUE_CONFIG 0x3B8
+#define H_INT_GET_QUEUE_CONFIG 0x3BC
+#define H_INT_SET_OS_REPORTING_LINE 0x3C0
+#define H_INT_GET_OS_REPORTING_LINE 0x3C4
+#define H_INT_ESB 0x3C8
+#define H_INT_SYNC 0x3CC
+#define H_INT_RESET 0x3D0
+#define MAX_HCALL_OPCODE H_INT_RESET
/* H_VIOCTL functions */
#define H_GET_VIOA_DUMP_SIZE 0x01
@@ -295,6 +306,8 @@
#define H_DISABLE_ALL_VIO_INTS 0x0A
#define H_DISABLE_VIO_INTERRUPT 0x0B
#define H_ENABLE_VIO_INTERRUPT 0x0C
+#define H_GET_SESSION_TOKEN 0x19
+#define H_SESSION_ERR_DETECTED 0x1A
/* Platform specific hcalls, used by KVM */
diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h
index eba60416536e..c1dd1929342d 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -129,6 +129,10 @@ static inline bool arch_irq_disabled_regs(struct pt_regs *regs)
}
extern bool prep_irq_for_idle(void);
+extern bool prep_irq_for_idle_irqsoff(void);
+extern void irq_set_pending_from_srr1(unsigned long srr1);
+
+#define fini_irq_for_idle_irqsoff() trace_hardirqs_off();
extern void force_external_irq_replay(void);
diff --git a/arch/powerpc/include/asm/icswx.h b/arch/powerpc/include/asm/icswx.h
index 27e588f6c72e..6a2c87577541 100644
--- a/arch/powerpc/include/asm/icswx.h
+++ b/arch/powerpc/include/asm/icswx.h
@@ -69,7 +69,10 @@ struct coprocessor_completion_block {
#define CSB_CC_WR_PROTECTION (16)
#define CSB_CC_UNKNOWN_CODE (17)
#define CSB_CC_ABORT (18)
+#define CSB_CC_EXCEED_BYTE_COUNT (19) /* P9 or later */
#define CSB_CC_TRANSPORT (20)
+#define CSB_CC_INVALID_CRB (21) /* P9 or later */
+#define CSB_CC_INVALID_DDE (30) /* P9 or later */
#define CSB_CC_SEGMENTED_DDL (31)
#define CSB_CC_PROGRESS_POINT (32)
#define CSB_CC_DDE_OVERFLOW (33)
diff --git a/arch/powerpc/include/asm/imc-pmu.h b/arch/powerpc/include/asm/imc-pmu.h
new file mode 100644
index 000000000000..7f74c282710f
--- /dev/null
+++ b/arch/powerpc/include/asm/imc-pmu.h
@@ -0,0 +1,128 @@
+#ifndef __ASM_POWERPC_IMC_PMU_H
+#define __ASM_POWERPC_IMC_PMU_H
+
+/*
+ * IMC Nest Performance Monitor counter support.
+ *
+ * Copyright (C) 2017 Madhavan Srinivasan, IBM Corporation.
+ * (C) 2017 Anju T Sudhakar, IBM Corporation.
+ * (C) 2017 Hemant K Shaw, IBM Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or later version.
+ */
+
+#include <linux/perf_event.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/io.h>
+#include <asm/opal.h>
+
+/*
+ * For static allocation of some of the structures.
+ */
+#define IMC_MAX_PMUS 32
+
+/*
+ * Compatibility macros for IMC devices
+ */
+#define IMC_DTB_COMPAT "ibm,opal-in-memory-counters"
+#define IMC_DTB_UNIT_COMPAT "ibm,imc-counters"
+
+
+/*
+ * LDBAR: Counter address and Enable/Disable macro.
+ * perf/imc-pmu.c has the LDBAR layout information.
+ */
+#define THREAD_IMC_LDBAR_MASK 0x0003ffffffffe000ULL
+#define THREAD_IMC_ENABLE 0x8000000000000000ULL
+
+/*
+ * Structure to hold memory address information for imc units.
+ */
+struct imc_mem_info {
+ u64 *vbase;
+ u32 id;
+};
+
+/*
+ * Place holder for nest pmu events and values.
+ */
+struct imc_events {
+ u32 value;
+ char *name;
+ char *unit;
+ char *scale;
+};
+
+/* Event attribute array index */
+#define IMC_FORMAT_ATTR 0
+#define IMC_EVENT_ATTR 1
+#define IMC_CPUMASK_ATTR 2
+#define IMC_NULL_ATTR 3
+
+/* PMU Format attribute macros */
+#define IMC_EVENT_OFFSET_MASK 0xffffffffULL
+
+/*
+ * Device tree parser code detects IMC pmu support and
+ * registers new IMC pmus. This structure will hold the
+ * pmu functions, events, counter memory information
+ * and attrs for each imc pmu and will be referenced at
+ * the time of pmu registration.
+ */
+struct imc_pmu {
+ struct pmu pmu;
+ struct imc_mem_info *mem_info;
+ struct imc_events **events;
+ /*
+ * Attribute groups for the PMU. Slot 0 used for
+ * format attribute, slot 1 used for cpusmask attribute,
+ * slot 2 used for event attribute. Slot 3 keep as
+ * NULL.
+ */
+ const struct attribute_group *attr_groups[4];
+ u32 counter_mem_size;
+ int domain;
+ /*
+ * flag to notify whether the memory is mmaped
+ * or allocated by kernel.
+ */
+ bool imc_counter_mmaped;
+};
+
+/*
+ * Structure to hold id, lock and reference count for the imc events which
+ * are inited.
+ */
+struct imc_pmu_ref {
+ struct mutex lock;
+ unsigned int id;
+ int refc;
+};
+
+/*
+ * In-Memory Collection Counters type.
+ * Data comes from Device tree.
+ * Three device type are supported.
+ */
+
+enum {
+ IMC_TYPE_THREAD = 0x1,
+ IMC_TYPE_CORE = 0x4,
+ IMC_TYPE_CHIP = 0x10,
+};
+
+/*
+ * Domains for IMC PMUs
+ */
+#define IMC_DOMAIN_NEST 1
+#define IMC_DOMAIN_CORE 2
+#define IMC_DOMAIN_THREAD 3
+
+extern int init_imc_pmu(struct device_node *parent,
+ struct imc_pmu *pmu_ptr, int pmu_id);
+extern void thread_imc_disable(void);
+#endif /* __ASM_POWERPC_IMC_PMU_H */
diff --git a/arch/powerpc/include/asm/iommu.h b/arch/powerpc/include/asm/iommu.h
index 8a8ce220d7d0..20febe0b7f32 100644
--- a/arch/powerpc/include/asm/iommu.h
+++ b/arch/powerpc/include/asm/iommu.h
@@ -139,6 +139,8 @@ struct scatterlist;
#ifdef CONFIG_PPC64
+#define IOMMU_MAPPING_ERROR (~(dma_addr_t)0x0)
+
static inline void set_iommu_table_base(struct device *dev,
struct iommu_table *base)
{
@@ -238,6 +240,8 @@ static inline int __init tce_iommu_bus_notifier_init(void)
}
#endif /* !CONFIG_IOMMU_API */
+int dma_iommu_mapping_error(struct device *dev, dma_addr_t dma_addr);
+
#else
static inline void *get_iommu_table_base(struct device *dev)
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 2bf35017ffc0..b8d5b8e35244 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -86,7 +86,6 @@ struct kvmppc_vcore {
u16 last_cpu;
u8 vcore_state;
u8 in_guest;
- struct kvmppc_vcore *master_vcore;
struct kvm_vcpu *runnable_threads[MAX_SMT_THREADS];
struct list_head preempt_list;
spinlock_t lock;
diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h b/arch/powerpc/include/asm/kvm_book3s_asm.h
index b148496ffe36..83596f32f50b 100644
--- a/arch/powerpc/include/asm/kvm_book3s_asm.h
+++ b/arch/powerpc/include/asm/kvm_book3s_asm.h
@@ -81,7 +81,7 @@ struct kvm_split_mode {
u8 subcore_size;
u8 do_nap;
u8 napped[MAX_SMT_THREADS];
- struct kvmppc_vcore *master_vcs[MAX_SUBCORES];
+ struct kvmppc_vcore *vc[MAX_SUBCORES];
};
/*
@@ -104,6 +104,10 @@ struct kvmppc_host_state {
u8 napping;
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+ /*
+ * hwthread_req/hwthread_state pair is used to pull sibling threads
+ * out of guest on pre-ISAv3.0B CPUs where threads share MMU.
+ */
u8 hwthread_req;
u8 hwthread_state;
u8 host_ipi;
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 9c51ac4b8f36..e372ed871c51 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -35,6 +35,7 @@
#include <asm/page.h>
#include <asm/cacheflush.h>
#include <asm/hvcall.h>
+#include <asm/mce.h>
#define KVM_MAX_VCPUS NR_CPUS
#define KVM_MAX_VCORES NR_CPUS
@@ -52,8 +53,8 @@
#define KVM_IRQCHIP_NUM_PINS 256
/* PPC-specific vcpu->requests bit members */
-#define KVM_REQ_WATCHDOG 8
-#define KVM_REQ_EPR_EXIT 9
+#define KVM_REQ_WATCHDOG KVM_ARCH_REQ(0)
+#define KVM_REQ_EPR_EXIT KVM_ARCH_REQ(1)
#include <linux/mmu_notifier.h>
@@ -66,11 +67,6 @@ extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
-static inline void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm,
- unsigned long address)
-{
-}
-
#define HPTEG_CACHE_NUM (1 << 15)
#define HPTEG_HASH_BITS_PTE 13
#define HPTEG_HASH_BITS_PTE_LONG 12
@@ -267,6 +263,8 @@ struct kvm_resize_hpt;
struct kvm_arch {
unsigned int lpid;
+ unsigned int smt_mode; /* # vcpus per virtual core */
+ unsigned int emul_smt_mode; /* emualted SMT mode, on P9 */
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
unsigned int tlb_sets;
struct kvm_hpt_info hpt;
@@ -285,6 +283,7 @@ struct kvm_arch {
cpumask_t need_tlb_flush;
cpumask_t cpu_in_guest;
u8 radix;
+ u8 fwnmi_enabled;
pgd_t *pgtable;
u64 process_table;
struct dentry *debugfs_dir;
@@ -566,6 +565,7 @@ struct kvm_vcpu_arch {
ulong wort;
ulong tid;
ulong psscr;
+ ulong hfscr;
ulong shadow_srr1;
#endif
u32 vrsave; /* also USPRG0 */
@@ -579,7 +579,7 @@ struct kvm_vcpu_arch {
ulong mcsrr0;
ulong mcsrr1;
ulong mcsr;
- u32 dec;
+ ulong dec;
#ifdef CONFIG_BOOKE
u32 decar;
#endif
@@ -710,6 +710,7 @@ struct kvm_vcpu_arch {
unsigned long pending_exceptions;
u8 ceded;
u8 prodded;
+ u8 doorbell_request;
u32 last_inst;
struct swait_queue_head *wqp;
@@ -722,6 +723,7 @@ struct kvm_vcpu_arch {
int prev_cpu;
bool timer_running;
wait_queue_head_t cpu_run;
+ struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
struct kvm_vcpu_arch_shared *shared;
#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h
index e0d88c38602b..ba5fadd6f3c9 100644
--- a/arch/powerpc/include/asm/kvm_ppc.h
+++ b/arch/powerpc/include/asm/kvm_ppc.h
@@ -315,6 +315,8 @@ struct kvmppc_ops {
struct irq_bypass_producer *);
int (*configure_mmu)(struct kvm *kvm, struct kvm_ppc_mmuv3_cfg *cfg);
int (*get_rmmu_info)(struct kvm *kvm, struct kvm_ppc_rmmu_info *info);
+ int (*set_smt_mode)(struct kvm *kvm, unsigned long mode,
+ unsigned long flags);
};
extern struct kvmppc_ops *kvmppc_hv_ops;
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
index f90b22c722e1..73b92017b6d7 100644
--- a/arch/powerpc/include/asm/machdep.h
+++ b/arch/powerpc/include/asm/machdep.h
@@ -76,7 +76,6 @@ struct machdep_calls {
void __noreturn (*restart)(char *cmd);
void __noreturn (*halt)(void);
- void (*panic)(char *str);
void (*cpu_die)(void);
long (*time_init)(void); /* Optional, may be NULL */
@@ -226,6 +225,7 @@ struct machdep_calls {
extern void e500_idle(void);
extern void power4_idle(void);
extern void power7_idle(void);
+extern void power9_idle(void);
extern void ppc6xx_idle(void);
extern void book3e_idle(void);
diff --git a/arch/powerpc/include/asm/mce.h b/arch/powerpc/include/asm/mce.h
index 81eff8631434..190d69a7f701 100644
--- a/arch/powerpc/include/asm/mce.h
+++ b/arch/powerpc/include/asm/mce.h
@@ -90,13 +90,14 @@ enum MCE_UserErrorType {
enum MCE_RaErrorType {
MCE_RA_ERROR_INDETERMINATE = 0,
MCE_RA_ERROR_IFETCH = 1,
- MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH = 2,
- MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH_FOREIGN = 3,
- MCE_RA_ERROR_LOAD = 4,
- MCE_RA_ERROR_STORE = 5,
- MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 6,
- MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE_FOREIGN = 7,
- MCE_RA_ERROR_LOAD_STORE_FOREIGN = 8,
+ MCE_RA_ERROR_IFETCH_FOREIGN = 2,
+ MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH = 3,
+ MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH_FOREIGN = 4,
+ MCE_RA_ERROR_LOAD = 5,
+ MCE_RA_ERROR_STORE = 6,
+ MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 7,
+ MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE_FOREIGN = 8,
+ MCE_RA_ERROR_LOAD_STORE_FOREIGN = 9,
};
enum MCE_LinkErrorType {
diff --git a/arch/powerpc/include/asm/mmu_context.h b/arch/powerpc/include/asm/mmu_context.h
index da7e9432fa8f..309592589e30 100644
--- a/arch/powerpc/include/asm/mmu_context.h
+++ b/arch/powerpc/include/asm/mmu_context.h
@@ -45,7 +45,7 @@ extern void set_context(unsigned long id, pgd_t *pgd);
#ifdef CONFIG_PPC_BOOK3S_64
extern void radix__switch_mmu_context(struct mm_struct *prev,
- struct mm_struct *next);
+ struct mm_struct *next);
static inline void switch_mmu_context(struct mm_struct *prev,
struct mm_struct *next,
struct task_struct *tsk)
@@ -67,54 +67,18 @@ extern void __destroy_context(unsigned long context_id);
extern void mmu_context_init(void);
#endif
+#if defined(CONFIG_KVM_BOOK3S_HV_POSSIBLE) && defined(CONFIG_PPC_RADIX_MMU)
+extern void radix_kvm_prefetch_workaround(struct mm_struct *mm);
+#else
+static inline void radix_kvm_prefetch_workaround(struct mm_struct *mm) { }
+#endif
+
extern void switch_cop(struct mm_struct *next);
extern int use_cop(unsigned long acop, struct mm_struct *mm);
extern void drop_cop(unsigned long acop, struct mm_struct *mm);
-/*
- * switch_mm is the entry point called from the architecture independent
- * code in kernel/sched/core.c
- */
-static inline void switch_mm_irqs_off(struct mm_struct *prev,
- struct mm_struct *next,
- struct task_struct *tsk)
-{
- /* Mark this context has been used on the new CPU */
- if (!cpumask_test_cpu(smp_processor_id(), mm_cpumask(next)))
- cpumask_set_cpu(smp_processor_id(), mm_cpumask(next));
-
- /* 32-bit keeps track of the current PGDIR in the thread struct */
-#ifdef CONFIG_PPC32
- tsk->thread.pgdir = next->pgd;
-#endif /* CONFIG_PPC32 */
-
- /* 64-bit Book3E keeps track of current PGD in the PACA */
-#ifdef CONFIG_PPC_BOOK3E_64
- get_paca()->pgd = next->pgd;
-#endif
- /* Nothing else to do if we aren't actually switching */
- if (prev == next)
- return;
-
-#ifdef CONFIG_PPC_ICSWX
- /* Switch coprocessor context only if prev or next uses a coprocessor */
- if (prev->context.acop || next->context.acop)
- switch_cop(next);
-#endif /* CONFIG_PPC_ICSWX */
-
- /* We must stop all altivec streams before changing the HW
- * context
- */
-#ifdef CONFIG_ALTIVEC
- if (cpu_has_feature(CPU_FTR_ALTIVEC))
- asm volatile ("dssall");
-#endif /* CONFIG_ALTIVEC */
- /*
- * The actual HW switching method differs between the various
- * sub architectures. Out of line for now
- */
- switch_mmu_context(prev, next, tsk);
-}
+extern void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next,
+ struct task_struct *tsk);
static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
struct task_struct *tsk)
@@ -136,11 +100,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
*/
static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
{
- unsigned long flags;
-
- local_irq_save(flags);
switch_mm(prev, next, current);
- local_irq_restore(flags);
}
/* We don't currently use enter_lazy_tlb() for anything */
diff --git a/arch/powerpc/include/asm/nmi.h b/arch/powerpc/include/asm/nmi.h
index ff1ccb375e60..3760150a0ff0 100644
--- a/arch/powerpc/include/asm/nmi.h
+++ b/arch/powerpc/include/asm/nmi.h
@@ -1,4 +1,14 @@
#ifndef _ASM_NMI_H
#define _ASM_NMI_H
+#ifdef CONFIG_PPC_WATCHDOG
+extern void arch_touch_nmi_watchdog(void);
+extern void arch_trigger_cpumask_backtrace(const cpumask_t *mask,
+ bool exclude_self);
+#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
+
+#else
+static inline void arch_touch_nmi_watchdog(void) {}
+#endif
+
#endif /* _ASM_NMI_H */
diff --git a/arch/powerpc/include/asm/nohash/32/pgalloc.h b/arch/powerpc/include/asm/nohash/32/pgalloc.h
index 633139291a48..cc369a70f2bb 100644
--- a/arch/powerpc/include/asm/nohash/32/pgalloc.h
+++ b/arch/powerpc/include/asm/nohash/32/pgalloc.h
@@ -31,7 +31,8 @@ extern struct kmem_cache *pgtable_cache[];
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
- return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE), GFP_KERNEL);
+ return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE),
+ pgtable_gfp_flags(mm, GFP_KERNEL));
}
static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h
index 5134ade2e850..185c6a47f9ba 100644
--- a/arch/powerpc/include/asm/nohash/32/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/32/pgtable.h
@@ -121,7 +121,7 @@ extern int icache_44x_need_flush;
#include <asm/nohash/pte-book3e.h>
#elif defined(CONFIG_FSL_BOOKE)
#include <asm/nohash/32/pte-fsl-booke.h>
-#elif defined(CONFIG_8xx)
+#elif defined(CONFIG_PPC_8xx)
#include <asm/nohash/32/pte-8xx.h>
#endif
@@ -337,8 +337,7 @@ static inline void __ptep_set_access_flags(struct mm_struct *mm,
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) >> 3 })
#define __swp_entry_to_pte(x) ((pte_t) { (x).val << 3 })
-extern int get_pteptr(struct mm_struct *mm, unsigned long addr, pte_t **ptep,
- pmd_t **pmdp);
+int map_kernel_page(unsigned long va, phys_addr_t pa, int flags);
#endif /* !__ASSEMBLY__ */
diff --git a/arch/powerpc/include/asm/nohash/64/pgalloc.h b/arch/powerpc/include/asm/nohash/64/pgalloc.h
index 897d2e1c8a9b..9721c7867b9c 100644
--- a/arch/powerpc/include/asm/nohash/64/pgalloc.h
+++ b/arch/powerpc/include/asm/nohash/64/pgalloc.h
@@ -43,7 +43,8 @@ extern struct kmem_cache *pgtable_cache[];
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
- return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE), GFP_KERNEL);
+ return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE),
+ pgtable_gfp_flags(mm, GFP_KERNEL));
}
static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
@@ -57,7 +58,8 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
{
- return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE), GFP_KERNEL);
+ return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE),
+ pgtable_gfp_flags(mm, GFP_KERNEL));
}
static inline void pud_free(struct mm_struct *mm, pud_t *pud)
@@ -96,7 +98,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
struct page *page;
pte_t *pte;
- pte = pte_alloc_one_kernel(mm, address);
+ pte = (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO | __GFP_ACCOUNT);
if (!pte)
return NULL;
page = virt_to_page(pte);
@@ -189,7 +191,8 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
{
- return kmem_cache_alloc(PGT_CACHE(PMD_CACHE_INDEX), GFP_KERNEL);
+ return kmem_cache_alloc(PGT_CACHE(PMD_CACHE_INDEX),
+ pgtable_gfp_flags(mm, GFP_KERNEL));
}
static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
diff --git a/arch/powerpc/include/asm/nohash/pgtable.h b/arch/powerpc/include/asm/nohash/pgtable.h
index e5805ad78e12..17989c3d9a24 100644
--- a/arch/powerpc/include/asm/nohash/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/pgtable.h
@@ -14,6 +14,7 @@ static inline int pte_write(pte_t pte)
{
return (pte_val(pte) & (_PAGE_RW | _PAGE_RO)) != _PAGE_RO;
}
+static inline int pte_read(pte_t pte) { return 1; }
static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; }
static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; }
static inline int pte_special(pte_t pte) { return pte_val(pte) & _PAGE_SPECIAL; }
diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h
index cb3e6242a78c..450a60b81d2a 100644
--- a/arch/powerpc/include/asm/opal-api.h
+++ b/arch/powerpc/include/asm/opal-api.h
@@ -42,6 +42,7 @@
#define OPAL_I2C_STOP_ERR -24
#define OPAL_XIVE_PROVISIONING -31
#define OPAL_XIVE_FREE_ACTIVE -32
+#define OPAL_TIMEOUT -33
/* API Tokens (in r0) */
#define OPAL_INVALID_CALL -1
@@ -190,7 +191,16 @@
#define OPAL_NPU_INIT_CONTEXT 146
#define OPAL_NPU_DESTROY_CONTEXT 147
#define OPAL_NPU_MAP_LPAR 148
-#define OPAL_LAST 148
+#define OPAL_IMC_COUNTERS_INIT 149
+#define OPAL_IMC_COUNTERS_START 150
+#define OPAL_IMC_COUNTERS_STOP 151
+#define OPAL_GET_POWERCAP 152
+#define OPAL_SET_POWERCAP 153
+#define OPAL_GET_POWER_SHIFT_RATIO 154
+#define OPAL_SET_POWER_SHIFT_RATIO 155
+#define OPAL_SENSOR_GROUP_CLEAR 156
+#define OPAL_PCI_SET_P2P 157
+#define OPAL_LAST 157
/* Device tree flags */
@@ -667,12 +677,14 @@ enum {
enum {
OPAL_PHB_ERROR_DATA_TYPE_P7IOC = 1,
- OPAL_PHB_ERROR_DATA_TYPE_PHB3 = 2
+ OPAL_PHB_ERROR_DATA_TYPE_PHB3 = 2,
+ OPAL_PHB_ERROR_DATA_TYPE_PHB4 = 3
};
enum {
OPAL_P7IOC_NUM_PEST_REGS = 128,
- OPAL_PHB3_NUM_PEST_REGS = 256
+ OPAL_PHB3_NUM_PEST_REGS = 256,
+ OPAL_PHB4_NUM_PEST_REGS = 512
};
struct OpalIoPhbErrorCommon {
@@ -802,9 +814,87 @@ struct OpalIoPhb3ErrorData {
__be64 pestB[OPAL_PHB3_NUM_PEST_REGS];
};
+struct OpalIoPhb4ErrorData {
+ struct OpalIoPhbErrorCommon common;
+
+ __be32 brdgCtl;
+
+ /* PHB4 cfg regs */
+ __be32 deviceStatus;
+ __be32 slotStatus;
+ __be32 linkStatus;
+ __be32 devCmdStatus;
+ __be32 devSecStatus;
+
+ /* cfg AER regs */
+ __be32 rootErrorStatus;
+ __be32 uncorrErrorStatus;
+ __be32 corrErrorStatus;
+ __be32 tlpHdr1;
+ __be32 tlpHdr2;
+ __be32 tlpHdr3;
+ __be32 tlpHdr4;
+ __be32 sourceId;
+
+ /* PHB4 ETU Error Regs */
+ __be64 nFir; /* 000 */
+ __be64 nFirMask; /* 003 */
+ __be64 nFirWOF; /* 008 */
+ __be64 phbPlssr; /* 120 */
+ __be64 phbCsr; /* 110 */
+ __be64 lemFir; /* C00 */
+ __be64 lemErrorMask; /* C18 */
+ __be64 lemWOF; /* C40 */
+ __be64 phbErrorStatus; /* C80 */
+ __be64 phbFirstErrorStatus; /* C88 */
+ __be64 phbErrorLog0; /* CC0 */
+ __be64 phbErrorLog1; /* CC8 */
+ __be64 phbTxeErrorStatus; /* D00 */
+ __be64 phbTxeFirstErrorStatus; /* D08 */
+ __be64 phbTxeErrorLog0; /* D40 */
+ __be64 phbTxeErrorLog1; /* D48 */
+ __be64 phbRxeArbErrorStatus; /* D80 */
+ __be64 phbRxeArbFirstErrorStatus; /* D88 */
+ __be64 phbRxeArbErrorLog0; /* DC0 */
+ __be64 phbRxeArbErrorLog1; /* DC8 */
+ __be64 phbRxeMrgErrorStatus; /* E00 */
+ __be64 phbRxeMrgFirstErrorStatus; /* E08 */
+ __be64 phbRxeMrgErrorLog0; /* E40 */
+ __be64 phbRxeMrgErrorLog1; /* E48 */
+ __be64 phbRxeTceErrorStatus; /* E80 */
+ __be64 phbRxeTceFirstErrorStatus; /* E88 */
+ __be64 phbRxeTceErrorLog0; /* EC0 */
+ __be64 phbRxeTceErrorLog1; /* EC8 */
+
+ /* PHB4 REGB Error Regs */
+ __be64 phbPblErrorStatus; /* 1900 */
+ __be64 phbPblFirstErrorStatus; /* 1908 */
+ __be64 phbPblErrorLog0; /* 1940 */
+ __be64 phbPblErrorLog1; /* 1948 */
+ __be64 phbPcieDlpErrorLog1; /* 1AA0 */
+ __be64 phbPcieDlpErrorLog2; /* 1AA8 */
+ __be64 phbPcieDlpErrorStatus; /* 1AB0 */
+ __be64 phbRegbErrorStatus; /* 1C00 */
+ __be64 phbRegbFirstErrorStatus; /* 1C08 */
+ __be64 phbRegbErrorLog0; /* 1C40 */
+ __be64 phbRegbErrorLog1; /* 1C48 */
+
+ __be64 pestA[OPAL_PHB4_NUM_PEST_REGS];
+ __be64 pestB[OPAL_PHB4_NUM_PEST_REGS];
+};
+
enum {
OPAL_REINIT_CPUS_HILE_BE = (1 << 0),
OPAL_REINIT_CPUS_HILE_LE = (1 << 1),
+
+ /* These two define the base MMU mode of the host on P9
+ *
+ * On P9 Nimbus DD2.0 and Cumlus (and later), KVM can still
+ * create hash guests in "radix" mode with care (full core
+ * switch only).
+ */
+ OPAL_REINIT_CPUS_MMU_HASH = (1 << 2),
+ OPAL_REINIT_CPUS_MMU_RADIX = (1 << 3),
};
typedef struct oppanel_line {
@@ -877,6 +967,7 @@ enum {
OPAL_PHB_CAPI_MODE_SNOOP_OFF = 2,
OPAL_PHB_CAPI_MODE_SNOOP_ON = 3,
OPAL_PHB_CAPI_MODE_DMA = 4,
+ OPAL_PHB_CAPI_MODE_DMA_TVT1 = 5,
};
/* OPAL I2C request */
@@ -1003,6 +1094,18 @@ enum {
XIVE_DUMP_EMU_STATE = 5,
};
+/* "type" argument options for OPAL_IMC_COUNTERS_* calls */
+enum {
+ OPAL_IMC_COUNTERS_NEST = 1,
+ OPAL_IMC_COUNTERS_CORE = 2,
+};
+
+
+/* PCI p2p descriptor */
+#define OPAL_PCI_P2P_ENABLE 0x1
+#define OPAL_PCI_P2P_LOAD 0x2
+#define OPAL_PCI_P2P_STORE 0x4
+
#endif /* __ASSEMBLY__ */
#endif /* __OPAL_API_H */
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 588fb1c23af9..726c23304a57 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -50,7 +50,7 @@ int64_t opal_tpo_write(uint64_t token, uint32_t year_mon_day,
uint32_t hour_min);
int64_t opal_cec_power_down(uint64_t request);
int64_t opal_cec_reboot(void);
-int64_t opal_cec_reboot2(uint32_t reboot_type, char *diag);
+int64_t opal_cec_reboot2(uint32_t reboot_type, const char *diag);
int64_t opal_read_nvram(uint64_t buffer, uint64_t size, uint64_t offset);
int64_t opal_write_nvram(uint64_t buffer, uint64_t size, uint64_t offset);
int64_t opal_handle_interrupt(uint64_t isn, __be64 *outstanding_event_mask);
@@ -267,6 +267,19 @@ int64_t opal_xive_allocate_irq(uint32_t chip_id);
int64_t opal_xive_free_irq(uint32_t girq);
int64_t opal_xive_sync(uint32_t type, uint32_t id);
int64_t opal_xive_dump(uint32_t type, uint32_t id);
+int64_t opal_pci_set_p2p(uint64_t phb_init, uint64_t phb_target,
+ uint64_t desc, uint16_t pe_number);
+
+int64_t opal_imc_counters_init(uint32_t type, uint64_t address,
+ uint64_t cpu_pir);
+int64_t opal_imc_counters_start(uint32_t type, uint64_t cpu_pir);
+int64_t opal_imc_counters_stop(uint32_t type, uint64_t cpu_pir);
+
+int opal_get_powercap(u32 handle, int token, u32 *pcap);
+int opal_set_powercap(u32 handle, int token, u32 pcap);
+int opal_get_power_shift_ratio(u32 handle, int token, u32 *psr);
+int opal_set_power_shift_ratio(u32 handle, int token, u32 psr);
+int opal_sensor_group_clear(u32 group_hndl, int token);
/* Internal functions */
extern int early_init_dt_scan_opal(unsigned long node, const char *uname,
@@ -345,6 +358,10 @@ static inline int opal_get_async_rc(struct opal_msg msg)
void opal_wake_poller(void);
+void opal_powercap_init(void);
+void opal_psr_init(void);
+void opal_sensor_groups_init(void);
+
#endif /* __ASSEMBLY__ */
#endif /* _ASM_POWERPC_OPAL_H */
diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
index 1c09f8fe2ee8..04b60af027ae 100644
--- a/arch/powerpc/include/asm/paca.h
+++ b/arch/powerpc/include/asm/paca.h
@@ -21,12 +21,17 @@
#include <asm/lppaca.h>
#include <asm/mmu.h>
#include <asm/page.h>
+#ifdef CONFIG_PPC_BOOK3E
#include <asm/exception-64e.h>
+#else
+#include <asm/exception-64s.h>
+#endif
#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
#include <asm/kvm_book3s_asm.h>
#endif
#include <asm/accounting.h>
#include <asm/hmi.h>
+#include <asm/cpuidle.h>
register struct paca_struct *local_paca asm("r13");
@@ -98,8 +103,8 @@ struct paca_struct {
* Now, starting in cacheline 2, the exception save areas
*/
/* used for most interrupts/exceptions */
- u64 exgen[13] __attribute__((aligned(0x80)));
- u64 exslb[13]; /* used for SLB/segment table misses
+ u64 exgen[EX_SIZE] __attribute__((aligned(0x80)));
+ u64 exslb[EX_SIZE]; /* used for SLB/segment table misses
* on the linear mapping */
/* SLB related definitions */
u16 vmalloc_sllp;
@@ -177,12 +182,20 @@ struct paca_struct {
* to the sibling threads' paca.
*/
struct paca_struct **thread_sibling_pacas;
+ /* The PSSCR value that the kernel requested before going to stop */
+ u64 requested_psscr;
+
+ /*
+ * Save area for additional SPRs that need to be
+ * saved/restored during cpuidle stop.
+ */
+ struct stop_sprs stop_sprs;
#endif
#ifdef CONFIG_PPC_STD_MMU_64
/* Non-maskable exceptions that are not performance critical */
- u64 exnmi[13]; /* used for system reset (nmi) */
- u64 exmc[13]; /* used for machine checks */
+ u64 exnmi[EX_SIZE]; /* used for system reset (nmi) */
+ u64 exmc[EX_SIZE]; /* used for machine checks */
#endif
#ifdef CONFIG_PPC_BOOK3S_64
/* Exclusive stacks for system reset and machine check exception. */
diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h
index 56c67d3f0108..0b8aa1fe2d5f 100644
--- a/arch/powerpc/include/asm/pci-bridge.h
+++ b/arch/powerpc/include/asm/pci-bridge.h
@@ -195,7 +195,6 @@ struct pci_dn {
struct pci_dn *parent;
struct pci_controller *phb; /* for pci devices */
struct iommu_table_group *table_group; /* for phb's or bridges */
- struct device_node *node; /* back-pointer to the device_node */
int pci_ext_config_space; /* for pci devices */
diff --git a/arch/powerpc/include/asm/pgalloc.h b/arch/powerpc/include/asm/pgalloc.h
index 0413457ba11d..45ae1212ab8a 100644
--- a/arch/powerpc/include/asm/pgalloc.h
+++ b/arch/powerpc/include/asm/pgalloc.h
@@ -3,6 +3,22 @@
#include <linux/mm.h>
+#ifndef MODULE
+static inline gfp_t pgtable_gfp_flags(struct mm_struct *mm, gfp_t gfp)
+{
+ if (unlikely(mm == &init_mm))
+ return gfp;
+ return gfp | __GFP_ACCOUNT;
+}
+#else /* !MODULE */
+static inline gfp_t pgtable_gfp_flags(struct mm_struct *mm, gfp_t gfp)
+{
+ return gfp | __GFP_ACCOUNT;
+}
+#endif /* MODULE */
+
+#define PGALLOC_GFP (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO)
+
#ifdef CONFIG_PPC_BOOK3S
#include <asm/book3s/pgalloc.h>
#else
diff --git a/arch/powerpc/include/asm/pgtable-be-types.h b/arch/powerpc/include/asm/pgtable-be-types.h
index 9c0f5db5cf46..67e7e3d990f4 100644
--- a/arch/powerpc/include/asm/pgtable-be-types.h
+++ b/arch/powerpc/include/asm/pgtable-be-types.h
@@ -87,6 +87,7 @@ static inline bool pte_xchg(pte_t *ptep, pte_t old, pte_t new)
unsigned long *p = (unsigned long *)ptep;
__be64 prev;
+ /* See comment in switch_mm_irqs_off() */
prev = (__force __be64)__cmpxchg_u64(p, (__force unsigned long)pte_raw(old),
(__force unsigned long)pte_raw(new));
diff --git a/arch/powerpc/include/asm/pgtable-types.h b/arch/powerpc/include/asm/pgtable-types.h
index 8bd3b13fe2fb..369a164b545c 100644
--- a/arch/powerpc/include/asm/pgtable-types.h
+++ b/arch/powerpc/include/asm/pgtable-types.h
@@ -62,6 +62,7 @@ static inline bool pte_xchg(pte_t *ptep, pte_t old, pte_t new)
{
unsigned long *p = (unsigned long *)ptep;
+ /* See comment in switch_mm_irqs_off() */
return pte_val(old) == __cmpxchg_u64(p, pte_val(old), pte_val(new));
}
#endif
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index dd01212935ac..7d0d38f58243 100644
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h
@@ -66,20 +66,19 @@ extern int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr,
#ifndef CONFIG_TRANSPARENT_HUGEPAGE
#define pmd_large(pmd) 0
#endif
-pte_t *__find_linux_pte_or_hugepte(pgd_t *pgdir, unsigned long ea,
- bool *is_thp, unsigned *shift);
-static inline pte_t *find_linux_pte_or_hugepte(pgd_t *pgdir, unsigned long ea,
- bool *is_thp, unsigned *shift)
-{
- VM_WARN(!arch_irqs_disabled(),
- "%s called with irq enabled\n", __func__);
- return __find_linux_pte_or_hugepte(pgdir, ea, is_thp, shift);
-}
+/* can we use this in kvm */
unsigned long vmalloc_to_phys(void *vmalloc_addr);
void pgtable_cache_add(unsigned shift, void (*ctor)(void *));
void pgtable_cache_init(void);
+
+#if defined(CONFIG_STRICT_KERNEL_RWX) || defined(CONFIG_PPC32)
+void mark_initmem_nx(void);
+#else
+static inline void mark_initmem_nx(void) { }
+#endif
+
#endif /* __ASSEMBLY__ */
#endif /* _ASM_POWERPC_PGTABLE_H */
diff --git a/arch/powerpc/include/asm/pnv-pci.h b/arch/powerpc/include/asm/pnv-pci.h
index de9681034353..3e5cf251ad9a 100644
--- a/arch/powerpc/include/asm/pnv-pci.h
+++ b/arch/powerpc/include/asm/pnv-pci.h
@@ -26,6 +26,8 @@ extern int pnv_pci_get_presence_state(uint64_t id, uint8_t *state);
extern int pnv_pci_get_power_state(uint64_t id, uint8_t *state);
extern int pnv_pci_set_power_state(uint64_t id, uint8_t state,
struct opal_msg *msg);
+extern int pnv_pci_set_p2p(struct pci_dev *initiator, struct pci_dev *target,
+ u64 desc);
int pnv_phb_to_cxl_mode(struct pci_dev *dev, uint64_t mode);
int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq,
diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index 3a8d278e7421..ce0930d68857 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -103,6 +103,8 @@
#define OP_31_XOP_STBUX 247
#define OP_31_XOP_LHZX 279
#define OP_31_XOP_LHZUX 311
+#define OP_31_XOP_MSGSNDP 142
+#define OP_31_XOP_MSGCLRP 174
#define OP_31_XOP_MFSPR 339
#define OP_31_XOP_LWAX 341
#define OP_31_XOP_LHAX 343
@@ -189,9 +191,9 @@
/* sorted alphabetically */
#define PPC_INST_BHRBE 0x7c00025c
#define PPC_INST_CLRBHRB 0x7c00035c
-#define PPC_INST_COPY 0x7c00060c
-#define PPC_INST_COPY_FIRST 0x7c20060c
+#define PPC_INST_COPY 0x7c20060c
#define PPC_INST_CP_ABORT 0x7c00068c
+#define PPC_INST_DARN 0x7c0005e6
#define PPC_INST_DCBA 0x7c0005ec
#define PPC_INST_DCBA_MASK 0xfc0007fe
#define PPC_INST_DCBAL 0x7c2005ec
@@ -203,6 +205,8 @@
#define PPC_INST_ISEL_MASK 0xfc00003e
#define PPC_INST_LDARX 0x7c0000a8
#define PPC_INST_STDCX 0x7c0001ad
+#define PPC_INST_LQARX 0x7c000228
+#define PPC_INST_STQCX 0x7c00016d
#define PPC_INST_LSWI 0x7c0004aa
#define PPC_INST_LSWX 0x7c00042a
#define PPC_INST_LWARX 0x7c000028
@@ -221,10 +225,10 @@
#define PPC_INST_MSGCLR 0x7c0001dc
#define PPC_INST_MSGSYNC 0x7c0006ec
#define PPC_INST_MSGSNDP 0x7c00011c
+#define PPC_INST_MSGCLRP 0x7c00015c
#define PPC_INST_MTTMR 0x7c0003dc
#define PPC_INST_NOP 0x60000000
-#define PPC_INST_PASTE 0x7c00070c
-#define PPC_INST_PASTE_LAST 0x7c20070d
+#define PPC_INST_PASTE 0x7c20070d
#define PPC_INST_POPCNTB 0x7c0000f4
#define PPC_INST_POPCNTB_MASK 0xfc0007fe
#define PPC_INST_POPCNTD 0x7c0003f4
@@ -260,7 +264,7 @@
#define PPC_INST_TLBSRX_DOT 0x7c0006a5
#define PPC_INST_VPMSUMW 0x10000488
#define PPC_INST_VPMSUMD 0x100004c8
-#define PPC_INST_XXLOR 0xf0000510
+#define PPC_INST_XXLOR 0xf0000490
#define PPC_INST_XXSWAPD 0xf0000250
#define PPC_INST_XVCPSGNDP 0xf0000780
#define PPC_INST_TRECHKPT 0x7c0007dd
@@ -392,16 +396,27 @@
/* Deal with instructions that older assemblers aren't aware of */
#define PPC_CP_ABORT stringify_in_c(.long PPC_INST_CP_ABORT)
+#define PPC_COPY(a, b) stringify_in_c(.long PPC_INST_COPY | \
+ ___PPC_RA(a) | ___PPC_RB(b))
+#define PPC_DARN(t, l) stringify_in_c(.long PPC_INST_DARN | \
+ ___PPC_RT(t) | \
+ (((l) & 0x3) << 16))
#define PPC_DCBAL(a, b) stringify_in_c(.long PPC_INST_DCBAL | \
__PPC_RA(a) | __PPC_RB(b))
#define PPC_DCBZL(a, b) stringify_in_c(.long PPC_INST_DCBZL | \
__PPC_RA(a) | __PPC_RB(b))
+#define PPC_LQARX(t, a, b, eh) stringify_in_c(.long PPC_INST_LQARX | \
+ ___PPC_RT(t) | ___PPC_RA(a) | \
+ ___PPC_RB(b) | __PPC_EH(eh))
#define PPC_LDARX(t, a, b, eh) stringify_in_c(.long PPC_INST_LDARX | \
___PPC_RT(t) | ___PPC_RA(a) | \
___PPC_RB(b) | __PPC_EH(eh))
#define PPC_LWARX(t, a, b, eh) stringify_in_c(.long PPC_INST_LWARX | \
___PPC_RT(t) | ___PPC_RA(a) | \
___PPC_RB(b) | __PPC_EH(eh))
+#define PPC_STQCX(t, a, b) stringify_in_c(.long PPC_INST_STQCX | \
+ ___PPC_RT(t) | ___PPC_RA(a) | \
+ ___PPC_RB(b))
#define PPC_MSGSND(b) stringify_in_c(.long PPC_INST_MSGSND | \
___PPC_RB(b))
#define PPC_MSGSYNC stringify_in_c(.long PPC_INST_MSGSYNC)
@@ -409,6 +424,10 @@
___PPC_RB(b))
#define PPC_MSGSNDP(b) stringify_in_c(.long PPC_INST_MSGSNDP | \
___PPC_RB(b))
+#define PPC_MSGCLRP(b) stringify_in_c(.long PPC_INST_MSGCLRP | \
+ ___PPC_RB(b))
+#define PPC_PASTE(a, b) stringify_in_c(.long PPC_INST_PASTE | \
+ ___PPC_RA(a) | ___PPC_RB(b))
#define PPC_POPCNTB(a, s) stringify_in_c(.long PPC_INST_POPCNTB | \
__PPC_RA(a) | __PPC_RS(s))
#define PPC_POPCNTD(a, s) stringify_in_c(.long PPC_INST_POPCNTD | \
diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h
index 359c44341761..36f3e41c9fbe 100644
--- a/arch/powerpc/include/asm/ppc_asm.h
+++ b/arch/powerpc/include/asm/ppc_asm.h
@@ -378,10 +378,16 @@ BEGIN_FTR_SECTION_NESTED(96); \
cmpwi dest,0; \
beq- 90b; \
END_FTR_SECTION_NESTED(CPU_FTR_CELL_TB_BUG, CPU_FTR_CELL_TB_BUG, 96)
-#elif defined(CONFIG_8xx)
-#define MFTB(dest) mftb dest
#else
-#define MFTB(dest) mfspr dest, SPRN_TBRL
+#define MFTB(dest) MFTBL(dest)
+#endif
+
+#ifdef CONFIG_PPC_8xx
+#define MFTBL(dest) mftb dest
+#define MFTBU(dest) mftbu dest
+#else
+#define MFTBL(dest) mfspr dest, SPRN_TBRL
+#define MFTBU(dest) mfspr dest, SPRN_TBRU
#endif
#ifndef CONFIG_SMP
@@ -411,7 +417,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601)
* and they must be used.
*/
-#if !defined(CONFIG_4xx) && !defined(CONFIG_8xx)
+#if !defined(CONFIG_4xx) && !defined(CONFIG_PPC_8xx)
#define tlbia \
li r4,1024; \
mtctr r4; \
@@ -439,7 +445,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601)
.machine push ; \
.machine "power4" ; \
lis scratch,0x60000000@h; \
- dcbt r0,scratch,0b01010; \
+ dcbt 0,scratch,0b01010; \
.machine pop
/*
@@ -770,15 +776,18 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601)
#else
#define FIXUP_ENDIAN \
tdi 0,0,0x48; /* Reverse endian of b . + 8 */ \
- b $+36; /* Skip trampoline if endian is good */ \
- .long 0x05009f42; /* bcl 20,31,$+4 */ \
- .long 0xa602487d; /* mflr r10 */ \
- .long 0x1c004a39; /* addi r10,r10,28 */ \
+ b $+44; /* Skip trampoline if endian is good */ \
.long 0xa600607d; /* mfmsr r11 */ \
.long 0x01006b69; /* xori r11,r11,1 */ \
+ .long 0x00004039; /* li r10,0 */ \
+ .long 0x6401417d; /* mtmsrd r10,1 */ \
+ .long 0x05009f42; /* bcl 20,31,$+4 */ \
+ .long 0xa602487d; /* mflr r10 */ \
+ .long 0x14004a39; /* addi r10,r10,20 */ \
.long 0xa6035a7d; /* mtsrr0 r10 */ \
.long 0xa6037b7d; /* mtsrr1 r11 */ \
.long 0x2400004c /* rfid */
+
#endif /* !CONFIG_PPC_BOOK3E */
#endif /* __ASSEMBLY__ */
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index 1189d04f3bd1..fab7ff877304 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -421,6 +421,26 @@ static inline unsigned long __pack_fe01(unsigned int fpmode)
#ifdef CONFIG_PPC64
#define cpu_relax() do { HMT_low(); HMT_medium(); barrier(); } while (0)
+
+#define spin_begin() HMT_low()
+
+#define spin_cpu_relax() barrier()
+
+#define spin_cpu_yield() spin_cpu_relax()
+
+#define spin_end() HMT_medium()
+
+#define spin_until_cond(cond) \
+do { \
+ if (unlikely(!(cond))) { \
+ spin_begin(); \
+ do { \
+ spin_cpu_relax(); \
+ } while (!(cond)); \
+ spin_end(); \
+ } \
+} while (0)
+
#else
#define cpu_relax() barrier()
#endif
@@ -474,11 +494,11 @@ extern unsigned long cpuidle_disable;
enum idle_boot_override {IDLE_NO_OVERRIDE = 0, IDLE_POWERSAVE_OFF};
extern int powersave_nap; /* set if nap mode can be used in idle loop */
-extern unsigned long power7_nap(int check_irq);
-extern unsigned long power7_sleep(void);
-extern unsigned long power7_winkle(void);
-extern unsigned long power9_idle_stop(unsigned long stop_psscr_val,
- unsigned long stop_psscr_mask);
+extern unsigned long power7_idle_insn(unsigned long type); /* PNV_THREAD_NAP/etc*/
+extern void power7_idle_type(unsigned long type);
+extern unsigned long power9_idle_stop(unsigned long psscr_val);
+extern void power9_idle_type(unsigned long stop_psscr_val,
+ unsigned long stop_psscr_mask);
extern void flush_instruction_cache(void);
extern void hard_reset_now(void);
diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h
index 35c00d7a0cf8..825bd5998701 100644
--- a/arch/powerpc/include/asm/prom.h
+++ b/arch/powerpc/include/asm/prom.h
@@ -159,7 +159,10 @@ struct of_drconf_cell {
#define OV5_PFO_HW_842 0x1140 /* PFO Compression Accelerator */
#define OV5_PFO_HW_ENCR 0x1120 /* PFO Encryption Accelerator */
#define OV5_SUB_PROCESSORS 0x1501 /* 1,2,or 4 Sub-Processors supported */
-#define OV5_XIVE_EXPLOIT 0x1701 /* XIVE exploitation supported */
+#define OV5_XIVE_SUPPORT 0x17C0 /* XIVE Exploitation Support Mask */
+#define OV5_XIVE_LEGACY 0x1700 /* XIVE legacy mode Only */
+#define OV5_XIVE_EXPLOIT 0x1740 /* XIVE exploitation mode Only */
+#define OV5_XIVE_EITHER 0x1780 /* XIVE legacy or exploitation mode */
/* MMU Base Architecture */
#define OV5_MMU_SUPPORT 0x18C0 /* MMU Mode Support Mask */
#define OV5_MMU_HASH 0x1800 /* Hash MMU Only */
diff --git a/arch/powerpc/include/asm/pte-walk.h b/arch/powerpc/include/asm/pte-walk.h
new file mode 100644
index 000000000000..2d633e9d686c
--- /dev/null
+++ b/arch/powerpc/include/asm/pte-walk.h
@@ -0,0 +1,35 @@
+#ifndef _ASM_POWERPC_PTE_WALK_H
+#define _ASM_POWERPC_PTE_WALK_H
+
+#include <linux/sched.h>
+
+/* Don't use this directly */
+extern pte_t *__find_linux_pte(pgd_t *pgdir, unsigned long ea,
+ bool *is_thp, unsigned *hshift);
+
+static inline pte_t *find_linux_pte(pgd_t *pgdir, unsigned long ea,
+ bool *is_thp, unsigned *hshift)
+{
+ VM_WARN(!arch_irqs_disabled(), "%s called with irq enabled\n", __func__);
+ return __find_linux_pte(pgdir, ea, is_thp, hshift);
+}
+
+static inline pte_t *find_init_mm_pte(unsigned long ea, unsigned *hshift)
+{
+ pgd_t *pgdir = init_mm.pgd;
+ return __find_linux_pte(pgdir, ea, NULL, hshift);
+}
+/*
+ * This is what we should always use. Any other lockless page table lookup needs
+ * careful audit against THP split.
+ */
+static inline pte_t *find_current_mm_pte(pgd_t *pgdir, unsigned long ea,
+ bool *is_thp, unsigned *hshift)
+{
+ VM_WARN(!arch_irqs_disabled(), "%s called with irq enabled\n", __func__);
+ VM_WARN(pgdir != current->mm->pgd,
+ "%s lock less page table lookup called on wrong mm\n", __func__);
+ return __find_linux_pte(pgdir, ea, is_thp, hshift);
+}
+
+#endif /* _ASM_POWERPC_PTE_WALK_H */
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 7e50e47375d6..f92eaf7a4c0d 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -22,9 +22,9 @@
#include <asm/reg_fsl_emb.h>
#endif
-#ifdef CONFIG_8xx
+#ifdef CONFIG_PPC_8xx
#include <asm/reg_8xx.h>
-#endif /* CONFIG_8xx */
+#endif /* CONFIG_PPC_8xx */
#define MSR_SF_LG 63 /* Enable 64 bit mode */
#define MSR_ISF_LG 61 /* Interrupt 64b mode valid on 630 */
@@ -135,7 +135,7 @@
#define MSR_KERNEL (MSR_ | MSR_64BIT)
#define MSR_USER32 (MSR_ | MSR_PR | MSR_EE)
#define MSR_USER64 (MSR_USER32 | MSR_64BIT)
-#elif defined(CONFIG_PPC_BOOK3S_32) || defined(CONFIG_8xx)
+#elif defined(CONFIG_PPC_BOOK3S_32) || defined(CONFIG_PPC_8xx)
/* Default MSR for kernel mode. */
#define MSR_KERNEL (MSR_ME|MSR_RI|MSR_IR|MSR_DR)
#define MSR_USER (MSR_KERNEL|MSR_PR|MSR_EE)
@@ -272,16 +272,65 @@
#define SPRN_DAR 0x013 /* Data Address Register */
#define SPRN_DBCR 0x136 /* e300 Data Breakpoint Control Reg */
#define SPRN_DSISR 0x012 /* Data Storage Interrupt Status Register */
-#define DSISR_NOHPTE 0x40000000 /* no translation found */
-#define DSISR_PROTFAULT 0x08000000 /* protection fault */
-#define DSISR_BADACCESS 0x04000000 /* bad access to CI or G */
-#define DSISR_ISSTORE 0x02000000 /* access was a store */
-#define DSISR_DABRMATCH 0x00400000 /* hit data breakpoint */
-#define DSISR_NOSEGMENT 0x00200000 /* SLB miss */
-#define DSISR_KEYFAULT 0x00200000 /* Key fault */
-#define DSISR_UNSUPP_MMU 0x00080000 /* Unsupported MMU config */
-#define DSISR_SET_RC 0x00040000 /* Failed setting of R/C bits */
-#define DSISR_PGDIRFAULT 0x00020000 /* Fault on page directory */
+#define DSISR_BAD_DIRECT_ST 0x80000000 /* Obsolete: Direct store error */
+#define DSISR_NOHPTE 0x40000000 /* no translation found */
+#define DSISR_ATTR_CONFLICT 0x20000000 /* P9: Process vs. Partition attr */
+#define DSISR_NOEXEC_OR_G 0x10000000 /* Alias of SRR1 bit, see below */
+#define DSISR_PROTFAULT 0x08000000 /* protection fault */
+#define DSISR_BADACCESS 0x04000000 /* bad access to CI or G */
+#define DSISR_ISSTORE 0x02000000 /* access was a store */
+#define DSISR_DABRMATCH 0x00400000 /* hit data breakpoint */
+#define DSISR_NOSEGMENT 0x00200000 /* STAB miss (unsupported) */
+#define DSISR_KEYFAULT 0x00200000 /* Storage Key fault */
+#define DSISR_BAD_EXT_CTRL 0x00100000 /* Obsolete: External ctrl error */
+#define DSISR_UNSUPP_MMU 0x00080000 /* P9: Unsupported MMU config */
+#define DSISR_SET_RC 0x00040000 /* P9: Failed setting of R/C bits */
+#define DSISR_PRTABLE_FAULT 0x00020000 /* P9: Fault on process table */
+#define DSISR_ICSWX_NO_CT 0x00004000 /* P7: icswx unavailable cp type */
+#define DSISR_BAD_COPYPASTE 0x00000008 /* P9: Copy/Paste on wrong memtype */
+#define DSISR_BAD_AMO 0x00000004 /* P9: Incorrect AMO opcode */
+#define DSISR_BAD_CI_LDST 0x00000002 /* P8: Bad HV CI load/store */
+
+/*
+ * DSISR_NOEXEC_OR_G doesn't actually exist. This bit is always
+ * 0 on DSIs. However, on ISIs, the corresponding bit in SRR1
+ * indicates an attempt at executing from a no-execute PTE
+ * or segment or from a guarded page.
+ *
+ * We add a definition here for completeness as we alias
+ * DSISR and SRR1 in do_page_fault.
+ */
+
+/*
+ * DSISR bits that are treated as a fault. Any bit set
+ * here will skip hash_page, and cause do_page_fault to
+ * trigger a SIGBUS or SIGSEGV:
+ */
+#define DSISR_BAD_FAULT_32S (DSISR_BAD_DIRECT_ST | \
+ DSISR_BADACCESS | \
+ DSISR_BAD_EXT_CTRL)
+#define DSISR_BAD_FAULT_64S (DSISR_BAD_FAULT_32S | \
+ DSISR_ATTR_CONFLICT | \
+ DSISR_KEYFAULT | \
+ DSISR_UNSUPP_MMU | \
+ DSISR_PRTABLE_FAULT | \
+ DSISR_ICSWX_NO_CT | \
+ DSISR_BAD_COPYPASTE | \
+ DSISR_BAD_AMO | \
+ DSISR_BAD_CI_LDST)
+/*
+ * These bits are equivalent in SRR1 and DSISR for 0x400
+ * instruction access interrupts on Book3S
+ */
+#define DSISR_SRR1_MATCH_32S (DSISR_NOHPTE | \
+ DSISR_NOEXEC_OR_G | \
+ DSISR_PROTFAULT)
+#define DSISR_SRR1_MATCH_64S (DSISR_SRR1_MATCH_32S | \
+ DSISR_KEYFAULT | \
+ DSISR_UNSUPP_MMU | \
+ DSISR_SET_RC | \
+ DSISR_PRTABLE_FAULT)
+
#define SPRN_TBRL 0x10C /* Time Base Read Lower Register (user, R/O) */
#define SPRN_TBRU 0x10D /* Time Base Read Upper Register (user, R/O) */
#define SPRN_CIR 0x11B /* Chip Information Register (hyper, R/0) */
@@ -307,6 +356,7 @@
#define SPRN_PMSR 0x355 /* Power Management Status Reg */
#define SPRN_PMMAR 0x356 /* Power Management Memory Activity Register */
#define SPRN_PSSCR 0x357 /* Processor Stop Status and Control Register (ISA 3.0) */
+#define SPRN_PSSCR_PR 0x337 /* PSSCR ISA 3.0, privileged mode access */
#define SPRN_PMCR 0x374 /* Power Management Control Register */
/* HFSCR and FSCR bit numbers are the same */
@@ -675,6 +725,7 @@
* may not be recoverable */
#define SRR1_WS_DEEPER 0x00020000 /* Some resources not maintained */
#define SRR1_WS_DEEP 0x00010000 /* All resources maintained */
+#define SRR1_PROGTM 0x00200000 /* TM Bad Thing */
#define SRR1_PROGFPE 0x00100000 /* Floating Point Enabled */
#define SRR1_PROGILL 0x00080000 /* Illegal instruction */
#define SRR1_PROGPRIV 0x00040000 /* Privileged instruction */
@@ -1114,7 +1165,7 @@
#endif
#endif
-#ifdef CONFIG_8xx
+#ifdef CONFIG_PPC_8xx
#define SPRN_SPRG_SCRATCH0 SPRN_SPRG0
#define SPRN_SPRG_SCRATCH1 SPRN_SPRG1
#define SPRN_SPRG_SCRATCH2 SPRN_SPRG2
@@ -1197,10 +1248,8 @@
* differentiated by the version number in the Communication Processor
* Module (CPM).
*/
-#define PVR_821 0x00500000
-#define PVR_823 PVR_821
-#define PVR_850 PVR_821
-#define PVR_860 PVR_821
+#define PVR_8xx 0x00500000
+
#define PVR_8240 0x00810100
#define PVR_8245 0x80811014
#define PVR_8260 PVR_8240
@@ -1295,15 +1344,15 @@ static inline void msr_check_and_clear(unsigned long bits)
".section __ftr_fixup,\"a\"\n" \
".align 3\n" \
"98:\n" \
- " .llong %1\n" \
- " .llong %1\n" \
- " .llong 97b-98b\n" \
- " .llong 99b-98b\n" \
- " .llong 0\n" \
- " .llong 0\n" \
+ " .8byte %1\n" \
+ " .8byte %1\n" \
+ " .8byte 97b-98b\n" \
+ " .8byte 99b-98b\n" \
+ " .8byte 0\n" \
+ " .8byte 0\n" \
".previous" \
: "=r" (rval) \
- : "i" (CPU_FTR_CELL_TB_BUG), "i" (SPRN_TBRL)); \
+ : "i" (CPU_FTR_CELL_TB_BUG), "i" (SPRN_TBRL) : "cr0"); \
rval;})
#else
#define mftb() ({unsigned long rval; \
@@ -1313,7 +1362,7 @@ static inline void msr_check_and_clear(unsigned long bits)
#else /* __powerpc64__ */
-#if defined(CONFIG_8xx)
+#if defined(CONFIG_PPC_8xx)
#define mftbl() ({unsigned long rval; \
asm volatile("mftbl %0" : "=r" (rval)); rval;})
#define mftbu() ({unsigned long rval; \
diff --git a/arch/powerpc/include/asm/reg_booke.h b/arch/powerpc/include/asm/reg_booke.h
index 737e012ef56e..eb2a33d5df26 100644
--- a/arch/powerpc/include/asm/reg_booke.h
+++ b/arch/powerpc/include/asm/reg_booke.h
@@ -221,10 +221,7 @@
#define SPRN_CSRR0 SPRN_SRR2 /* Critical Save and Restore Register 0 */
#define SPRN_CSRR1 SPRN_SRR3 /* Critical Save and Restore Register 1 */
#endif
-
-#ifdef CONFIG_PPC_ICSWX
#define SPRN_HACOP 0x15F /* Hypervisor Available Coprocessor Register */
-#endif
/* Bit definitions for CCR1. */
#define CCR1_DPC 0x00000100 /* Disable L1 I-Cache/D-Cache parity checking */
diff --git a/arch/powerpc/include/asm/setup.h b/arch/powerpc/include/asm/setup.h
index 654d64c9f3ac..3a3fb0ca68f5 100644
--- a/arch/powerpc/include/asm/setup.h
+++ b/arch/powerpc/include/asm/setup.h
@@ -23,7 +23,6 @@ extern void reloc_got2(unsigned long);
void check_for_initrd(void);
void initmem_init(void);
-void setup_panic(void);
#define ARCH_PANIC_TIMEOUT 180
#ifdef CONFIG_PPC_PSERIES
diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h
index ebddb2111d87..fac963e10d39 100644
--- a/arch/powerpc/include/asm/smp.h
+++ b/arch/powerpc/include/asm/smp.h
@@ -55,6 +55,8 @@ struct smp_ops_t {
int (*cpu_bootable)(unsigned int nr);
};
+extern void smp_flush_nmi_ipi(u64 delay_us);
+extern int smp_send_nmi_ipi(int cpu, void (*fn)(struct pt_regs *), u64 delay_us);
extern void smp_send_debugger_break(void);
extern void start_secondary_resume(void);
extern void smp_generic_give_timebase(void);
@@ -95,6 +97,7 @@ static inline void set_hard_smp_processor_id(int cpu, int phys)
#endif
DECLARE_PER_CPU(cpumask_var_t, cpu_sibling_map);
+DECLARE_PER_CPU(cpumask_var_t, cpu_l2_cache_map);
DECLARE_PER_CPU(cpumask_var_t, cpu_core_map);
static inline struct cpumask *cpu_sibling_mask(int cpu)
@@ -107,6 +110,11 @@ static inline struct cpumask *cpu_core_mask(int cpu)
return per_cpu(cpu_core_map, cpu);
}
+static inline struct cpumask *cpu_l2_cache_mask(int cpu)
+{
+ return per_cpu(cpu_l2_cache_map, cpu);
+}
+
extern int cpu_to_core_id(int cpu);
/* Since OpenPIC has only 4 IPIs, we use slightly different message numbers.
diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h
index 8c1b913de6d7..edbe571bcc54 100644
--- a/arch/powerpc/include/asm/spinlock.h
+++ b/arch/powerpc/include/asm/spinlock.h
@@ -170,39 +170,6 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
lock->slock = 0;
}
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- arch_spinlock_t lock_val;
-
- smp_mb();
-
- /*
- * Atomically load and store back the lock value (unchanged). This
- * ensures that our observation of the lock value is ordered with
- * respect to other lock operations.
- */
- __asm__ __volatile__(
-"1: " PPC_LWARX(%0, 0, %2, 0) "\n"
-" stwcx. %0, 0, %2\n"
-" bne- 1b\n"
- : "=&r" (lock_val), "+m" (*lock)
- : "r" (lock)
- : "cr0", "xer");
-
- if (arch_spin_value_unlocked(lock_val))
- goto out;
-
- while (lock->slock) {
- HMT_low();
- if (SHARED_PROCESSOR)
- __spin_yield(lock);
- }
- HMT_medium();
-
-out:
- smp_mb();
-}
-
/*
* Read-write spinlocks, allowing multiple readers
* but only one writer.
@@ -342,5 +309,8 @@ static inline void arch_write_unlock(arch_rwlock_t *rw)
#define arch_read_relax(lock) __rw_yield(lock)
#define arch_write_relax(lock) __rw_yield(lock)
+/* See include/linux/spinlock.h */
+#define smp_mb__after_spinlock() smp_mb()
+
#endif /* __KERNEL__ */
#endif /* __ASM_SPINLOCK_H */
diff --git a/arch/powerpc/include/asm/sstep.h b/arch/powerpc/include/asm/sstep.h
index d3a42cc45a82..ab9d849644d0 100644
--- a/arch/powerpc/include/asm/sstep.h
+++ b/arch/powerpc/include/asm/sstep.h
@@ -23,12 +23,9 @@ struct pt_regs;
#define IS_RFID(instr) (((instr) & 0xfc0007fe) == 0x4c000024)
#define IS_RFI(instr) (((instr) & 0xfc0007fe) == 0x4c000064)
-/* Emulate instructions that cause a transfer of control. */
-extern int emulate_step(struct pt_regs *regs, unsigned int instr);
-
enum instruction_type {
COMPUTE, /* arith/logical/CR op, etc. */
- LOAD,
+ LOAD, /* load and store types need to be contiguous */
LOAD_MULTI,
LOAD_FP,
LOAD_VMX,
@@ -55,10 +52,31 @@ enum instruction_type {
#define INSTR_TYPE_MASK 0x1f
+#define OP_IS_LOAD_STORE(type) (LOAD <= (type) && (type) <= STCX)
+
+/* Compute flags, ORed in with type */
+#define SETREG 0x20
+#define SETCC 0x40
+#define SETXER 0x80
+
+/* Branch flags, ORed in with type */
+#define SETLK 0x20
+#define BRTAKEN 0x40
+#define DECCTR 0x80
+
/* Load/store flags, ORed in with type */
#define SIGNEXT 0x20
#define UPDATE 0x40 /* matches bit in opcode 31 instructions */
#define BYTEREV 0x80
+#define FPCONV 0x100
+
+/* Barrier type field, ORed in with type */
+#define BARRIER_MASK 0xe0
+#define BARRIER_SYNC 0x00
+#define BARRIER_ISYNC 0x20
+#define BARRIER_EIEIO 0x40
+#define BARRIER_LWSYNC 0x60
+#define BARRIER_PTESYNC 0x80
/* Cacheop values, ORed in with type */
#define CACHEOP_MASK 0x700
@@ -67,10 +85,17 @@ enum instruction_type {
#define DCBTST 0x200
#define DCBT 0x300
#define ICBI 0x400
+#define DCBZ 0x500
+
+/* VSX flags values */
+#define VSX_FPCONV 1 /* do floating point SP/DP conversion */
+#define VSX_SPLAT 2 /* store loaded value into all elements */
+#define VSX_LDLEFT 4 /* load VSX register from left */
+#define VSX_CHECK_VEC 8 /* check MSR_VEC not MSR_VSX for reg >= 32 */
/* Size field in type word */
-#define SIZE(n) ((n) << 8)
-#define GETSIZE(w) ((w) >> 8)
+#define SIZE(n) ((n) << 12)
+#define GETSIZE(w) ((w) >> 12)
#define MKOP(t, f, s) ((t) | (f) | SIZE(s))
@@ -83,7 +108,63 @@ struct instruction_op {
int update_reg;
/* For MFSPR */
int spr;
+ u32 ccval;
+ u32 xerval;
+ u8 element_size; /* for VSX/VMX loads/stores */
+ u8 vsx_flags;
+};
+
+union vsx_reg {
+ u8 b[16];
+ u16 h[8];
+ u32 w[4];
+ unsigned long d[2];
+ float fp[4];
+ double dp[2];
+ __vector128 v;
};
-extern int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
+/*
+ * Decode an instruction, and return information about it in *op
+ * without changing *regs.
+ *
+ * Return value is 1 if the instruction can be emulated just by
+ * updating *regs with the information in *op, -1 if we need the
+ * GPRs but *regs doesn't contain the full register set, or 0
+ * otherwise.
+ */
+extern int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
unsigned int instr);
+
+/*
+ * Emulate an instruction that can be executed just by updating
+ * fields in *regs.
+ */
+void emulate_update_regs(struct pt_regs *reg, struct instruction_op *op);
+
+/*
+ * Emulate instructions that cause a transfer of control,
+ * arithmetic/logical instructions, loads and stores,
+ * cache operations and barriers.
+ *
+ * Returns 1 if the instruction was emulated successfully,
+ * 0 if it could not be emulated, or -1 for an instruction that
+ * should not be emulated (rfid, mtmsrd clearing MSR_RI, etc.).
+ */
+extern int emulate_step(struct pt_regs *regs, unsigned int instr);
+
+/*
+ * Emulate a load or store instruction by reading/writing the
+ * memory of the current process. FP/VMX/VSX registers are assumed
+ * to hold live values if the appropriate enable bit in regs->msr is
+ * set; otherwise this will use the saved values in the thread struct
+ * for user-mode accesses.
+ */
+extern int emulate_loadstore(struct pt_regs *regs, struct instruction_op *op);
+
+extern void emulate_vsx_load(struct instruction_op *op, union vsx_reg *reg,
+ const void *mem, bool cross_endian);
+extern void emulate_vsx_store(struct instruction_op *op,
+ const union vsx_reg *reg, void *mem,
+ bool cross_endian);
+extern int emulate_dcbz(unsigned long ea, struct pt_regs *regs);
diff --git a/arch/powerpc/include/asm/string.h b/arch/powerpc/include/asm/string.h
index da3cdffca440..cc9addefb51c 100644
--- a/arch/powerpc/include/asm/string.h
+++ b/arch/powerpc/include/asm/string.h
@@ -10,6 +10,7 @@
#define __HAVE_ARCH_MEMMOVE
#define __HAVE_ARCH_MEMCMP
#define __HAVE_ARCH_MEMCHR
+#define __HAVE_ARCH_MEMSET16
extern char * strcpy(char *,const char *);
extern char * strncpy(char *,const char *, __kernel_size_t);
@@ -23,6 +24,31 @@ extern void * memmove(void *,const void *,__kernel_size_t);
extern int memcmp(const void *,const void *,__kernel_size_t);
extern void * memchr(const void *,int,__kernel_size_t);
+#ifdef CONFIG_PPC64
+#define __HAVE_ARCH_MEMSET32
+#define __HAVE_ARCH_MEMSET64
+
+extern void *__memset16(uint16_t *, uint16_t v, __kernel_size_t);
+extern void *__memset32(uint32_t *, uint32_t v, __kernel_size_t);
+extern void *__memset64(uint64_t *, uint64_t v, __kernel_size_t);
+
+static inline void *memset16(uint16_t *p, uint16_t v, __kernel_size_t n)
+{
+ return __memset16(p, v, n * 2);
+}
+
+static inline void *memset32(uint32_t *p, uint32_t v, __kernel_size_t n)
+{
+ return __memset32(p, v, n * 4);
+}
+
+static inline void *memset64(uint64_t *p, uint64_t v, __kernel_size_t n)
+{
+ return __memset64(p, v, n * 8);
+}
+#else
+extern void *memset16(uint16_t *, uint16_t, __kernel_size_t);
+#endif
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_STRING_H */
diff --git a/arch/powerpc/include/asm/timex.h b/arch/powerpc/include/asm/timex.h
index 2cf846edb3fc..cb61eae5b7ed 100644
--- a/arch/powerpc/include/asm/timex.h
+++ b/arch/powerpc/include/asm/timex.h
@@ -29,7 +29,7 @@ static inline cycles_t get_cycles(void)
ret = 0;
__asm__ __volatile__(
-#ifdef CONFIG_8xx
+#ifdef CONFIG_PPC_8xx
"97: mftb %0\n"
#else
"97: mfspr %0, %2\n"
@@ -45,11 +45,7 @@ static inline cycles_t get_cycles(void)
" .long 0\n"
" .long 0\n"
".previous"
-#ifdef CONFIG_8xx
- : "=r" (ret) : "i" (CPU_FTR_601));
-#else
: "=r" (ret) : "i" (CPU_FTR_601), "i" (SPRN_TBRL));
-#endif
return ret;
#endif
}
diff --git a/arch/powerpc/include/asm/tlb.h b/arch/powerpc/include/asm/tlb.h
index 609557569f65..a7eabff27a0f 100644
--- a/arch/powerpc/include/asm/tlb.h
+++ b/arch/powerpc/include/asm/tlb.h
@@ -69,13 +69,22 @@ static inline int mm_is_core_local(struct mm_struct *mm)
topology_sibling_cpumask(smp_processor_id()));
}
+#ifdef CONFIG_PPC_BOOK3S_64
+static inline int mm_is_thread_local(struct mm_struct *mm)
+{
+ if (atomic_read(&mm->context.active_cpus) > 1)
+ return false;
+ return cpumask_test_cpu(smp_processor_id(), mm_cpumask(mm));
+}
+#else /* CONFIG_PPC_BOOK3S_64 */
static inline int mm_is_thread_local(struct mm_struct *mm)
{
return cpumask_equal(mm_cpumask(mm),
cpumask_of(smp_processor_id()));
}
+#endif /* !CONFIG_PPC_BOOK3S_64 */
-#else
+#else /* CONFIG_SMP */
static inline int mm_is_core_local(struct mm_struct *mm)
{
return 1;
diff --git a/arch/powerpc/include/asm/topology.h b/arch/powerpc/include/asm/topology.h
index 329771559cbb..2d84bca8d053 100644
--- a/arch/powerpc/include/asm/topology.h
+++ b/arch/powerpc/include/asm/topology.h
@@ -16,8 +16,6 @@ struct device_node;
#include <asm/mmzone.h>
-#define parent_node(node) (node)
-
#define cpumask_of_node(node) ((node) == -1 ? \
cpu_all_mask : \
node_to_cpumask_map[node])
@@ -43,6 +41,7 @@ extern void __init dump_numa_cpu_topology(void);
extern int sysfs_add_device_to_node(struct device *dev, int nid);
extern void sysfs_remove_device_from_node(struct device *dev, int nid);
+extern int numa_update_cpu_topology(bool cpus_locked);
static inline int early_cpu_to_node(int cpu)
{
@@ -71,6 +70,11 @@ static inline void sysfs_remove_device_from_node(struct device *dev,
int nid)
{
}
+
+static inline int numa_update_cpu_topology(bool cpus_locked)
+{
+ return 0;
+}
#endif /* CONFIG_NUMA */
#if defined(CONFIG_NUMA) && defined(CONFIG_PPC_SPLPAR)
diff --git a/arch/powerpc/include/asm/trace.h b/arch/powerpc/include/asm/trace.h
index c05cef6ee06c..18f168aebae3 100644
--- a/arch/powerpc/include/asm/trace.h
+++ b/arch/powerpc/include/asm/trace.h
@@ -168,6 +168,39 @@ TRACE_EVENT(hash_fault,
__entry->addr, __entry->access, __entry->trap)
);
+
+TRACE_EVENT(tlbie,
+
+ TP_PROTO(unsigned long lpid, unsigned long local, unsigned long rb,
+ unsigned long rs, unsigned long ric, unsigned long prs,
+ unsigned long r),
+ TP_ARGS(lpid, local, rb, rs, ric, prs, r),
+ TP_STRUCT__entry(
+ __field(unsigned long, lpid)
+ __field(unsigned long, local)
+ __field(unsigned long, rb)
+ __field(unsigned long, rs)
+ __field(unsigned long, ric)
+ __field(unsigned long, prs)
+ __field(unsigned long, r)
+ ),
+
+ TP_fast_assign(
+ __entry->lpid = lpid;
+ __entry->local = local;
+ __entry->rb = rb;
+ __entry->rs = rs;
+ __entry->ric = ric;
+ __entry->prs = prs;
+ __entry->r = r;
+ ),
+
+ TP_printk("lpid=%ld, local=%ld, rb=0x%lx, rs=0x%lx, ric=0x%lx, "
+ "prs=0x%lx, r=0x%lx", __entry->lpid, __entry->local,
+ __entry->rb, __entry->rs, __entry->ric, __entry->prs,
+ __entry->r)
+);
+
#endif /* _TRACE_POWERPC_H */
#undef TRACE_INCLUDE_PATH
diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
index 41e88d3ce36b..9c0e60ca1666 100644
--- a/arch/powerpc/include/asm/uaccess.h
+++ b/arch/powerpc/include/asm/uaccess.h
@@ -90,9 +90,6 @@
#define __put_user_inatomic(x, ptr) \
__put_user_nosleep((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
-#define __get_user_unaligned __get_user
-#define __put_user_unaligned __put_user
-
extern long __put_user_bad(void);
/*
@@ -340,7 +337,6 @@ static inline unsigned long clear_user(void __user *addr, unsigned long size)
}
extern long strncpy_from_user(char *dst, const char __user *src, long count);
-extern __must_check long strlen_user(const char __user *str);
extern __must_check long strnlen_user(const char __user *str, long n);
#endif /* _ARCH_POWERPC_UACCESS_H */
diff --git a/arch/powerpc/include/asm/vas.h b/arch/powerpc/include/asm/vas.h
new file mode 100644
index 000000000000..fd5963acd658
--- /dev/null
+++ b/arch/powerpc/include/asm/vas.h
@@ -0,0 +1,159 @@
+/*
+ * Copyright 2016-17 IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _ASM_POWERPC_VAS_H
+#define _ASM_POWERPC_VAS_H
+
+/*
+ * Min and max FIFO sizes are based on Version 1.05 Section 3.1.4.25
+ * (Local FIFO Size Register) of the VAS workbook.
+ */
+#define VAS_RX_FIFO_SIZE_MIN (1 << 10) /* 1KB */
+#define VAS_RX_FIFO_SIZE_MAX (8 << 20) /* 8MB */
+
+/*
+ * Threshold Control Mode: Have paste operation fail if the number of
+ * requests in receive FIFO exceeds a threshold.
+ *
+ * NOTE: No special error code yet if paste is rejected because of these
+ * limits. So users can't distinguish between this and other errors.
+ */
+#define VAS_THRESH_DISABLED 0
+#define VAS_THRESH_FIFO_GT_HALF_FULL 1
+#define VAS_THRESH_FIFO_GT_QTR_FULL 2
+#define VAS_THRESH_FIFO_GT_EIGHTH_FULL 3
+
+/*
+ * Get/Set bit fields
+ */
+#define GET_FIELD(m, v) (((v) & (m)) >> MASK_LSH(m))
+#define MASK_LSH(m) (__builtin_ffsl(m) - 1)
+#define SET_FIELD(m, v, val) \
+ (((v) & ~(m)) | ((((typeof(v))(val)) << MASK_LSH(m)) & (m)))
+
+/*
+ * Co-processor Engine type.
+ */
+enum vas_cop_type {
+ VAS_COP_TYPE_FAULT,
+ VAS_COP_TYPE_842,
+ VAS_COP_TYPE_842_HIPRI,
+ VAS_COP_TYPE_GZIP,
+ VAS_COP_TYPE_GZIP_HIPRI,
+ VAS_COP_TYPE_FTW,
+ VAS_COP_TYPE_MAX,
+};
+
+/*
+ * Receive window attributes specified by the (in-kernel) owner of window.
+ */
+struct vas_rx_win_attr {
+ void *rx_fifo;
+ int rx_fifo_size;
+ int wcreds_max;
+
+ bool pin_win;
+ bool rej_no_credit;
+ bool tx_wcred_mode;
+ bool rx_wcred_mode;
+ bool tx_win_ord_mode;
+ bool rx_win_ord_mode;
+ bool data_stamp;
+ bool nx_win;
+ bool fault_win;
+ bool user_win;
+ bool notify_disable;
+ bool intr_disable;
+ bool notify_early;
+
+ int lnotify_lpid;
+ int lnotify_pid;
+ int lnotify_tid;
+ u32 pswid;
+
+ int tc_mode;
+};
+
+/*
+ * Window attributes specified by the in-kernel owner of a send window.
+ */
+struct vas_tx_win_attr {
+ enum vas_cop_type cop;
+ int wcreds_max;
+ int lpid;
+ int pidr; /* hardware PID (from SPRN_PID) */
+ int pid; /* linux process id */
+ int pswid;
+ int rsvd_txbuf_count;
+ int tc_mode;
+
+ bool user_win;
+ bool pin_win;
+ bool rej_no_credit;
+ bool rsvd_txbuf_enable;
+ bool tx_wcred_mode;
+ bool rx_wcred_mode;
+ bool tx_win_ord_mode;
+ bool rx_win_ord_mode;
+};
+
+/*
+ * Helper to initialize receive window attributes to defaults for an
+ * NX window.
+ */
+void vas_init_rx_win_attr(struct vas_rx_win_attr *rxattr, enum vas_cop_type cop);
+
+/*
+ * Open a VAS receive window for the instance of VAS identified by @vasid
+ * Use @attr to initialize the attributes of the window.
+ *
+ * Return a handle to the window or ERR_PTR() on error.
+ */
+struct vas_window *vas_rx_win_open(int vasid, enum vas_cop_type cop,
+ struct vas_rx_win_attr *attr);
+
+/*
+ * Helper to initialize send window attributes to defaults for an NX window.
+ */
+extern void vas_init_tx_win_attr(struct vas_tx_win_attr *txattr,
+ enum vas_cop_type cop);
+
+/*
+ * Open a VAS send window for the instance of VAS identified by @vasid
+ * and the co-processor type @cop. Use @attr to initialize attributes
+ * of the window.
+ *
+ * Note: The instance of VAS must already have an open receive window for
+ * the coprocessor type @cop.
+ *
+ * Return a handle to the send window or ERR_PTR() on error.
+ */
+struct vas_window *vas_tx_win_open(int vasid, enum vas_cop_type cop,
+ struct vas_tx_win_attr *attr);
+
+/*
+ * Close the send or receive window identified by @win. For receive windows
+ * return -EAGAIN if there are active send windows attached to this receive
+ * window.
+ */
+int vas_win_close(struct vas_window *win);
+
+/*
+ * Copy the co-processor request block (CRB) @crb into the local L2 cache.
+ */
+int vas_copy_crb(void *crb, int offset);
+
+/*
+ * Paste a previously copied CRB (see vas_copy_crb()) from the L2 cache to
+ * the hardware address associated with the window @win. @re is expected/
+ * assumed to be true for NX windows.
+ */
+int vas_paste_crb(struct vas_window *win, int offset, bool re);
+
+#endif /* __ASM_POWERPC_VAS_H */
diff --git a/arch/powerpc/include/asm/vga.h b/arch/powerpc/include/asm/vga.h
index ab3acd2f2786..7a7b541b7493 100644
--- a/arch/powerpc/include/asm/vga.h
+++ b/arch/powerpc/include/asm/vga.h
@@ -33,8 +33,16 @@ static inline u16 scr_readw(volatile const u16 *addr)
return le16_to_cpu(*addr);
}
+#define VT_BUF_HAVE_MEMSETW
+static inline void scr_memsetw(u16 *s, u16 v, unsigned int n)
+{
+ memset16(s, cpu_to_le16(v), n / 2);
+}
+
#define VT_BUF_HAVE_MEMCPYW
+#define VT_BUF_HAVE_MEMMOVEW
#define scr_memcpyw memcpy
+#define scr_memmovew memmove
#endif /* !CONFIG_VGA_CONSOLE && !CONFIG_MDA_CONSOLE */
diff --git a/arch/powerpc/include/asm/xive.h b/arch/powerpc/include/asm/xive.h
index c23ff4389ca2..371fbebf1ec9 100644
--- a/arch/powerpc/include/asm/xive.h
+++ b/arch/powerpc/include/asm/xive.h
@@ -45,6 +45,7 @@ struct xive_irq_data {
void __iomem *trig_mmio;
u32 esb_shift;
int src_chip;
+ u32 hw_irq;
/* Setup/used by frontend */
int target;
@@ -55,6 +56,7 @@ struct xive_irq_data {
#define XIVE_IRQ_FLAG_SHIFT_BUG 0x04
#define XIVE_IRQ_FLAG_MASK_FW 0x08
#define XIVE_IRQ_FLAG_EOI_FW 0x10
+#define XIVE_IRQ_FLAG_H_INT_ESB 0x20
#define XIVE_INVALID_CHIP_ID -1
@@ -110,11 +112,13 @@ extern bool __xive_enabled;
static inline bool xive_enabled(void) { return __xive_enabled; }
+extern bool xive_spapr_init(void);
extern bool xive_native_init(void);
extern void xive_smp_probe(void);
extern int xive_smp_prepare_cpu(unsigned int cpu);
extern void xive_smp_setup_cpu(void);
extern void xive_smp_disable_cpu(void);
+extern void xive_teardown_cpu(void);
extern void xive_kexec_teardown_cpu(int secondary);
extern void xive_shutdown(void);
extern void xive_flush_interrupt(void);
@@ -147,6 +151,7 @@ extern int xive_native_get_vp_info(u32 vp_id, u32 *out_cam_id, u32 *out_chip_id)
static inline bool xive_enabled(void) { return false; }
+static inline bool xive_spapr_init(void) { return false; }
static inline bool xive_native_init(void) { return false; }
static inline void xive_smp_probe(void) { }
extern inline int xive_smp_prepare_cpu(unsigned int cpu) { return -EINVAL; }
diff --git a/arch/powerpc/include/uapi/asm/Kbuild b/arch/powerpc/include/uapi/asm/Kbuild
index b15bf6bc0e94..0d960ef78a9a 100644
--- a/arch/powerpc/include/uapi/asm/Kbuild
+++ b/arch/powerpc/include/uapi/asm/Kbuild
@@ -1,2 +1,8 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+
+generic-y += param.h
+generic-y += poll.h
+generic-y += resource.h
+generic-y += sockios.h
+generic-y += statfs.h
diff --git a/arch/powerpc/include/uapi/asm/ioctls.h b/arch/powerpc/include/uapi/asm/ioctls.h
index 49a25796a61a..e3b10469f787 100644
--- a/arch/powerpc/include/uapi/asm/ioctls.h
+++ b/arch/powerpc/include/uapi/asm/ioctls.h
@@ -100,6 +100,7 @@
#define TIOCGPKT _IOR('T', 0x38, int) /* Get packet mode state */
#define TIOCGPTLCK _IOR('T', 0x39, int) /* Get Pty lock state */
#define TIOCGEXCL _IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER _IO('T', 0x41) /* Safely open the slave */
#define TIOCSERCONFIG 0x5453
#define TIOCSERGWILD 0x5454
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h
index 07fbeb927834..8cf8f0c96906 100644
--- a/arch/powerpc/include/uapi/asm/kvm.h
+++ b/arch/powerpc/include/uapi/asm/kvm.h
@@ -60,6 +60,12 @@ struct kvm_regs {
#define KVM_SREGS_E_FSL_PIDn (1 << 0) /* PID1/PID2 */
+/* flags for kvm_run.flags */
+#define KVM_RUN_PPC_NMI_DISP_MASK (3 << 0)
+#define KVM_RUN_PPC_NMI_DISP_FULLY_RECOV (1 << 0)
+#define KVM_RUN_PPC_NMI_DISP_LIMITED_RECOV (2 << 0)
+#define KVM_RUN_PPC_NMI_DISP_NOT_RECOV (3 << 0)
+
/*
* Feature bits indicate which sections of the sregs struct are valid,
* both in KVM_GET_SREGS and KVM_SET_SREGS. On KVM_SET_SREGS, registers
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index ab45cc2f3101..03c06ba7464f 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -29,20 +29,4 @@
#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */
#define MAP_HUGETLB 0x40000 /* create a huge page mapping */
-/*
- * When MAP_HUGETLB is set, bits [26:31] of the flags argument to mmap(2),
- * encode the log2 of the huge page size. A value of zero indicates that the
- * default huge page size should be used. To use a non-default huge page size,
- * one of these defines can be used, or the size can be encoded by hand. Note
- * that on most systems only a subset, or possibly none, of these sizes will be
- * available.
- */
-#define MAP_HUGE_512KB (19 << MAP_HUGE_SHIFT) /* 512KB HugeTLB Page */
-#define MAP_HUGE_1MB (20 << MAP_HUGE_SHIFT) /* 1MB HugeTLB Page */
-#define MAP_HUGE_2MB (21 << MAP_HUGE_SHIFT) /* 2MB HugeTLB Page */
-#define MAP_HUGE_8MB (23 << MAP_HUGE_SHIFT) /* 8MB HugeTLB Page */
-#define MAP_HUGE_16MB (24 << MAP_HUGE_SHIFT) /* 16MB HugeTLB Page */
-#define MAP_HUGE_1GB (30 << MAP_HUGE_SHIFT) /* 1GB HugeTLB Page */
-#define MAP_HUGE_16GB (34 << MAP_HUGE_SHIFT) /* 16GB HugeTLB Page */
-
#endif /* _UAPI_ASM_POWERPC_MMAN_H */
diff --git a/arch/powerpc/include/uapi/asm/param.h b/arch/powerpc/include/uapi/asm/param.h
deleted file mode 100644
index 965d45427975..000000000000
--- a/arch/powerpc/include/uapi/asm/param.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/param.h>
diff --git a/arch/powerpc/include/uapi/asm/poll.h b/arch/powerpc/include/uapi/asm/poll.h
deleted file mode 100644
index c98509d3149e..000000000000
--- a/arch/powerpc/include/uapi/asm/poll.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/poll.h>
diff --git a/arch/powerpc/include/uapi/asm/resource.h b/arch/powerpc/include/uapi/asm/resource.h
deleted file mode 100644
index 04bc4db8921b..000000000000
--- a/arch/powerpc/include/uapi/asm/resource.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/resource.h>
diff --git a/arch/powerpc/include/uapi/asm/socket.h b/arch/powerpc/include/uapi/asm/socket.h
index 58e2ec0310fc..3c590c7c42c0 100644
--- a/arch/powerpc/include/uapi/asm/socket.h
+++ b/arch/powerpc/include/uapi/asm/socket.h
@@ -8,28 +8,6 @@
* 2 of the License, or (at your option) any later version.
*/
-#include <asm/sockios.h>
-
-/* For setsockopt(2) */
-#define SOL_SOCKET 1
-
-#define SO_DEBUG 1
-#define SO_REUSEADDR 2
-#define SO_TYPE 3
-#define SO_ERROR 4
-#define SO_DONTROUTE 5
-#define SO_BROADCAST 6
-#define SO_SNDBUF 7
-#define SO_RCVBUF 8
-#define SO_SNDBUFFORCE 32
-#define SO_RCVBUFFORCE 33
-#define SO_KEEPALIVE 9
-#define SO_OOBINLINE 10
-#define SO_NO_CHECK 11
-#define SO_PRIORITY 12
-#define SO_LINGER 13
-#define SO_BSDCOMPAT 14
-#define SO_REUSEPORT 15
#define SO_RCVLOWAT 16
#define SO_SNDLOWAT 17
#define SO_RCVTIMEO 18
@@ -37,72 +15,6 @@
#define SO_PASSCRED 20
#define SO_PEERCRED 21
-/* Security levels - as per NRL IPv6 - don't actually do anything */
-#define SO_SECURITY_AUTHENTICATION 22
-#define SO_SECURITY_ENCRYPTION_TRANSPORT 23
-#define SO_SECURITY_ENCRYPTION_NETWORK 24
-
-#define SO_BINDTODEVICE 25
-
-/* Socket filtering */
-#define SO_ATTACH_FILTER 26
-#define SO_DETACH_FILTER 27
-#define SO_GET_FILTER SO_ATTACH_FILTER
-
-#define SO_PEERNAME 28
-#define SO_TIMESTAMP 29
-#define SCM_TIMESTAMP SO_TIMESTAMP
-
-#define SO_ACCEPTCONN 30
-
-#define SO_PEERSEC 31
-#define SO_PASSSEC 34
-#define SO_TIMESTAMPNS 35
-#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
-
-#define SO_MARK 36
-
-#define SO_TIMESTAMPING 37
-#define SCM_TIMESTAMPING SO_TIMESTAMPING
-
-#define SO_PROTOCOL 38
-#define SO_DOMAIN 39
-
-#define SO_RXQ_OVFL 40
-
-#define SO_WIFI_STATUS 41
-#define SCM_WIFI_STATUS SO_WIFI_STATUS
-#define SO_PEEK_OFF 42
-
-/* Instruct lower device to use last 4-bytes of skb data as FCS */
-#define SO_NOFCS 43
-
-#define SO_LOCK_FILTER 44
-
-#define SO_SELECT_ERR_QUEUE 45
-
-#define SO_BUSY_POLL 46
-
-#define SO_MAX_PACING_RATE 47
-
-#define SO_BPF_EXTENSIONS 48
-
-#define SO_INCOMING_CPU 49
-
-#define SO_ATTACH_BPF 50
-#define SO_DETACH_BPF SO_DETACH_FILTER
-
-#define SO_ATTACH_REUSEPORT_CBPF 51
-#define SO_ATTACH_REUSEPORT_EBPF 52
-
-#define SO_CNX_ADVICE 53
-
-#define SCM_TIMESTAMPING_OPT_STATS 54
-
-#define SO_MEMINFO 55
-
-#define SO_INCOMING_NAPI_ID 56
-
-#define SO_COOKIE 57
+#include <asm-generic/socket.h>
#endif /* _ASM_POWERPC_SOCKET_H */
diff --git a/arch/powerpc/include/uapi/asm/sockios.h b/arch/powerpc/include/uapi/asm/sockios.h
deleted file mode 100644
index 55cef7675a31..000000000000
--- a/arch/powerpc/include/uapi/asm/sockios.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef _ASM_POWERPC_SOCKIOS_H
-#define _ASM_POWERPC_SOCKIOS_H
-
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-/* Socket-level I/O control calls. */
-#define FIOSETOWN 0x8901
-#define SIOCSPGRP 0x8902
-#define FIOGETOWN 0x8903
-#define SIOCGPGRP 0x8904
-#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
-#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
-
-#endif /* _ASM_POWERPC_SOCKIOS_H */
diff --git a/arch/powerpc/include/uapi/asm/statfs.h b/arch/powerpc/include/uapi/asm/statfs.h
deleted file mode 100644
index 5244834583a4..000000000000
--- a/arch/powerpc/include/uapi/asm/statfs.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_POWERPC_STATFS_H
-#define _ASM_POWERPC_STATFS_H
-
-#include <asm-generic/statfs.h>
-
-#endif
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index e132902e1f14..91960f83039c 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -25,8 +25,6 @@ CFLAGS_REMOVE_cputable.o = -mno-sched-epilog $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_prom_init.o = -mno-sched-epilog $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_btext.o = -mno-sched-epilog $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_prom.o = -mno-sched-epilog $(CC_FLAGS_FTRACE)
-# timers used by tracing
-CFLAGS_REMOVE_time.o = -mno-sched-epilog $(CC_FLAGS_FTRACE)
endif
obj-y := cputable.o ptrace.o syscalls.o \
@@ -40,6 +38,7 @@ obj-$(CONFIG_PPC64) += setup_64.o sys_ppc32.o \
signal_64.o ptrace32.o \
paca.o nvram_64.o firmware.o
obj-$(CONFIG_VDSO32) += vdso32/
+obj-$(CONFIG_PPC_WATCHDOG) += watchdog.o
obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o
obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_ppc970.o cpu_setup_pa6t.o
obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_power.o
@@ -84,7 +83,7 @@ extra-y := head_$(BITS).o
extra-$(CONFIG_40x) := head_40x.o
extra-$(CONFIG_44x) := head_44x.o
extra-$(CONFIG_FSL_BOOKE) := head_fsl_booke.o
-extra-$(CONFIG_8xx) := head_8xx.o
+extra-$(CONFIG_PPC_8xx) := head_8xx.o
extra-y += vmlinux.lds
obj-$(CONFIG_RELOCATABLE) += reloc_$(BITS).o
diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index ec7a8b099dd9..43ef25156480 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -27,6 +27,7 @@
#include <asm/switch_to.h>
#include <asm/disassemble.h>
#include <asm/cpu_has_feature.h>
+#include <asm/sstep.h>
struct aligninfo {
unsigned char len;
@@ -40,364 +41,9 @@ struct aligninfo {
#define LD 0 /* load */
#define ST 1 /* store */
#define SE 2 /* sign-extend value, or FP ld/st as word */
-#define F 4 /* to/from fp regs */
-#define U 8 /* update index register */
-#define M 0x10 /* multiple load/store */
#define SW 0x20 /* byte swap */
-#define S 0x40 /* single-precision fp or... */
-#define SX 0x40 /* ... byte count in XER */
-#define HARD 0x80 /* string, stwcx. */
#define E4 0x40 /* SPE endianness is word */
#define E8 0x80 /* SPE endianness is double word */
-#define SPLT 0x80 /* VSX SPLAT load */
-
-/* DSISR bits reported for a DCBZ instruction: */
-#define DCBZ 0x5f /* 8xx/82xx dcbz faults when cache not enabled */
-
-/*
- * The PowerPC stores certain bits of the instruction that caused the
- * alignment exception in the DSISR register. This array maps those
- * bits to information about the operand length and what the
- * instruction would do.
- */
-static struct aligninfo aligninfo[128] = {
- { 4, LD }, /* 00 0 0000: lwz / lwarx */
- INVALID, /* 00 0 0001 */
- { 4, ST }, /* 00 0 0010: stw */
- INVALID, /* 00 0 0011 */
- { 2, LD }, /* 00 0 0100: lhz */
- { 2, LD+SE }, /* 00 0 0101: lha */
- { 2, ST }, /* 00 0 0110: sth */
- { 4, LD+M }, /* 00 0 0111: lmw */
- { 4, LD+F+S }, /* 00 0 1000: lfs */
- { 8, LD+F }, /* 00 0 1001: lfd */
- { 4, ST+F+S }, /* 00 0 1010: stfs */
- { 8, ST+F }, /* 00 0 1011: stfd */
- { 16, LD }, /* 00 0 1100: lq */
- { 8, LD }, /* 00 0 1101: ld/ldu/lwa */
- INVALID, /* 00 0 1110 */
- { 8, ST }, /* 00 0 1111: std/stdu */
- { 4, LD+U }, /* 00 1 0000: lwzu */
- INVALID, /* 00 1 0001 */
- { 4, ST+U }, /* 00 1 0010: stwu */
- INVALID, /* 00 1 0011 */
- { 2, LD+U }, /* 00 1 0100: lhzu */
- { 2, LD+SE+U }, /* 00 1 0101: lhau */
- { 2, ST+U }, /* 00 1 0110: sthu */
- { 4, ST+M }, /* 00 1 0111: stmw */
- { 4, LD+F+S+U }, /* 00 1 1000: lfsu */
- { 8, LD+F+U }, /* 00 1 1001: lfdu */
- { 4, ST+F+S+U }, /* 00 1 1010: stfsu */
- { 8, ST+F+U }, /* 00 1 1011: stfdu */
- { 16, LD+F }, /* 00 1 1100: lfdp */
- INVALID, /* 00 1 1101 */
- { 16, ST+F }, /* 00 1 1110: stfdp */
- INVALID, /* 00 1 1111 */
- { 8, LD }, /* 01 0 0000: ldx */
- INVALID, /* 01 0 0001 */
- { 8, ST }, /* 01 0 0010: stdx */
- INVALID, /* 01 0 0011 */
- INVALID, /* 01 0 0100 */
- { 4, LD+SE }, /* 01 0 0101: lwax */
- INVALID, /* 01 0 0110 */
- INVALID, /* 01 0 0111 */
- { 4, LD+M+HARD+SX }, /* 01 0 1000: lswx */
- { 4, LD+M+HARD }, /* 01 0 1001: lswi */
- { 4, ST+M+HARD+SX }, /* 01 0 1010: stswx */
- { 4, ST+M+HARD }, /* 01 0 1011: stswi */
- INVALID, /* 01 0 1100 */
- { 8, LD+U }, /* 01 0 1101: ldu */
- INVALID, /* 01 0 1110 */
- { 8, ST+U }, /* 01 0 1111: stdu */
- { 8, LD+U }, /* 01 1 0000: ldux */
- INVALID, /* 01 1 0001 */
- { 8, ST+U }, /* 01 1 0010: stdux */
- INVALID, /* 01 1 0011 */
- INVALID, /* 01 1 0100 */
- { 4, LD+SE+U }, /* 01 1 0101: lwaux */
- INVALID, /* 01 1 0110 */
- INVALID, /* 01 1 0111 */
- INVALID, /* 01 1 1000 */
- INVALID, /* 01 1 1001 */
- INVALID, /* 01 1 1010 */
- INVALID, /* 01 1 1011 */
- INVALID, /* 01 1 1100 */
- INVALID, /* 01 1 1101 */
- INVALID, /* 01 1 1110 */
- INVALID, /* 01 1 1111 */
- INVALID, /* 10 0 0000 */
- INVALID, /* 10 0 0001 */
- INVALID, /* 10 0 0010: stwcx. */
- INVALID, /* 10 0 0011 */
- INVALID, /* 10 0 0100 */
- INVALID, /* 10 0 0101 */
- INVALID, /* 10 0 0110 */
- INVALID, /* 10 0 0111 */
- { 4, LD+SW }, /* 10 0 1000: lwbrx */
- INVALID, /* 10 0 1001 */
- { 4, ST+SW }, /* 10 0 1010: stwbrx */
- INVALID, /* 10 0 1011 */
- { 2, LD+SW }, /* 10 0 1100: lhbrx */
- { 4, LD+SE }, /* 10 0 1101 lwa */
- { 2, ST+SW }, /* 10 0 1110: sthbrx */
- { 16, ST }, /* 10 0 1111: stq */
- INVALID, /* 10 1 0000 */
- INVALID, /* 10 1 0001 */
- INVALID, /* 10 1 0010 */
- INVALID, /* 10 1 0011 */
- INVALID, /* 10 1 0100 */
- INVALID, /* 10 1 0101 */
- INVALID, /* 10 1 0110 */
- INVALID, /* 10 1 0111 */
- INVALID, /* 10 1 1000 */
- INVALID, /* 10 1 1001 */
- INVALID, /* 10 1 1010 */
- INVALID, /* 10 1 1011 */
- INVALID, /* 10 1 1100 */
- INVALID, /* 10 1 1101 */
- INVALID, /* 10 1 1110 */
- { 0, ST+HARD }, /* 10 1 1111: dcbz */
- { 4, LD }, /* 11 0 0000: lwzx */
- INVALID, /* 11 0 0001 */
- { 4, ST }, /* 11 0 0010: stwx */
- INVALID, /* 11 0 0011 */
- { 2, LD }, /* 11 0 0100: lhzx */
- { 2, LD+SE }, /* 11 0 0101: lhax */
- { 2, ST }, /* 11 0 0110: sthx */
- INVALID, /* 11 0 0111 */
- { 4, LD+F+S }, /* 11 0 1000: lfsx */
- { 8, LD+F }, /* 11 0 1001: lfdx */
- { 4, ST+F+S }, /* 11 0 1010: stfsx */
- { 8, ST+F }, /* 11 0 1011: stfdx */
- { 16, LD+F }, /* 11 0 1100: lfdpx */
- { 4, LD+F+SE }, /* 11 0 1101: lfiwax */
- { 16, ST+F }, /* 11 0 1110: stfdpx */
- { 4, ST+F }, /* 11 0 1111: stfiwx */
- { 4, LD+U }, /* 11 1 0000: lwzux */
- INVALID, /* 11 1 0001 */
- { 4, ST+U }, /* 11 1 0010: stwux */
- INVALID, /* 11 1 0011 */
- { 2, LD+U }, /* 11 1 0100: lhzux */
- { 2, LD+SE+U }, /* 11 1 0101: lhaux */
- { 2, ST+U }, /* 11 1 0110: sthux */
- INVALID, /* 11 1 0111 */
- { 4, LD+F+S+U }, /* 11 1 1000: lfsux */
- { 8, LD+F+U }, /* 11 1 1001: lfdux */
- { 4, ST+F+S+U }, /* 11 1 1010: stfsux */
- { 8, ST+F+U }, /* 11 1 1011: stfdux */
- INVALID, /* 11 1 1100 */
- { 4, LD+F }, /* 11 1 1101: lfiwzx */
- INVALID, /* 11 1 1110 */
- INVALID, /* 11 1 1111 */
-};
-
-/*
- * The dcbz (data cache block zero) instruction
- * gives an alignment fault if used on non-cacheable
- * memory. We handle the fault mainly for the
- * case when we are running with the cache disabled
- * for debugging.
- */
-static int emulate_dcbz(struct pt_regs *regs, unsigned char __user *addr)
-{
- long __user *p;
- int i, size;
-
-#ifdef __powerpc64__
- size = ppc64_caches.l1d.block_size;
-#else
- size = L1_CACHE_BYTES;
-#endif
- p = (long __user *) (regs->dar & -size);
- if (user_mode(regs) && !access_ok(VERIFY_WRITE, p, size))
- return -EFAULT;
- for (i = 0; i < size / sizeof(long); ++i)
- if (__put_user_inatomic(0, p+i))
- return -EFAULT;
- return 1;
-}
-
-/*
- * Emulate load & store multiple instructions
- * On 64-bit machines, these instructions only affect/use the
- * bottom 4 bytes of each register, and the loads clear the
- * top 4 bytes of the affected register.
- */
-#ifdef __BIG_ENDIAN__
-#ifdef CONFIG_PPC64
-#define REG_BYTE(rp, i) *((u8 *)((rp) + ((i) >> 2)) + ((i) & 3) + 4)
-#else
-#define REG_BYTE(rp, i) *((u8 *)(rp) + (i))
-#endif
-#else
-#define REG_BYTE(rp, i) (*(((u8 *)((rp) + ((i)>>2)) + ((i)&3))))
-#endif
-
-#define SWIZ_PTR(p) ((unsigned char __user *)((p) ^ swiz))
-
-static int emulate_multiple(struct pt_regs *regs, unsigned char __user *addr,
- unsigned int reg, unsigned int nb,
- unsigned int flags, unsigned int instr,
- unsigned long swiz)
-{
- unsigned long *rptr;
- unsigned int nb0, i, bswiz;
- unsigned long p;
-
- /*
- * We do not try to emulate 8 bytes multiple as they aren't really
- * available in our operating environments and we don't try to
- * emulate multiples operations in kernel land as they should never
- * be used/generated there at least not on unaligned boundaries
- */
- if (unlikely((nb > 4) || !user_mode(regs)))
- return 0;
-
- /* lmw, stmw, lswi/x, stswi/x */
- nb0 = 0;
- if (flags & HARD) {
- if (flags & SX) {
- nb = regs->xer & 127;
- if (nb == 0)
- return 1;
- } else {
- unsigned long pc = regs->nip ^ (swiz & 4);
-
- if (__get_user_inatomic(instr,
- (unsigned int __user *)pc))
- return -EFAULT;
- if (swiz == 0 && (flags & SW))
- instr = cpu_to_le32(instr);
- nb = (instr >> 11) & 0x1f;
- if (nb == 0)
- nb = 32;
- }
- if (nb + reg * 4 > 128) {
- nb0 = nb + reg * 4 - 128;
- nb = 128 - reg * 4;
- }
-#ifdef __LITTLE_ENDIAN__
- /*
- * String instructions are endian neutral but the code
- * below is not. Force byte swapping on so that the
- * effects of swizzling are undone in the load/store
- * loops below.
- */
- flags ^= SW;
-#endif
- } else {
- /* lwm, stmw */
- nb = (32 - reg) * 4;
- }
-
- if (!access_ok((flags & ST ? VERIFY_WRITE: VERIFY_READ), addr, nb+nb0))
- return -EFAULT; /* bad address */
-
- rptr = &regs->gpr[reg];
- p = (unsigned long) addr;
- bswiz = (flags & SW)? 3: 0;
-
- if (!(flags & ST)) {
- /*
- * This zeroes the top 4 bytes of the affected registers
- * in 64-bit mode, and also zeroes out any remaining
- * bytes of the last register for lsw*.
- */
- memset(rptr, 0, ((nb + 3) / 4) * sizeof(unsigned long));
- if (nb0 > 0)
- memset(&regs->gpr[0], 0,
- ((nb0 + 3) / 4) * sizeof(unsigned long));
-
- for (i = 0; i < nb; ++i, ++p)
- if (__get_user_inatomic(REG_BYTE(rptr, i ^ bswiz),
- SWIZ_PTR(p)))
- return -EFAULT;
- if (nb0 > 0) {
- rptr = &regs->gpr[0];
- addr += nb;
- for (i = 0; i < nb0; ++i, ++p)
- if (__get_user_inatomic(REG_BYTE(rptr,
- i ^ bswiz),
- SWIZ_PTR(p)))
- return -EFAULT;
- }
-
- } else {
- for (i = 0; i < nb; ++i, ++p)
- if (__put_user_inatomic(REG_BYTE(rptr, i ^ bswiz),
- SWIZ_PTR(p)))
- return -EFAULT;
- if (nb0 > 0) {
- rptr = &regs->gpr[0];
- addr += nb;
- for (i = 0; i < nb0; ++i, ++p)
- if (__put_user_inatomic(REG_BYTE(rptr,
- i ^ bswiz),
- SWIZ_PTR(p)))
- return -EFAULT;
- }
- }
- return 1;
-}
-
-/*
- * Emulate floating-point pair loads and stores.
- * Only POWER6 has these instructions, and it does true little-endian,
- * so we don't need the address swizzling.
- */
-static int emulate_fp_pair(unsigned char __user *addr, unsigned int reg,
- unsigned int flags)
-{
- char *ptr0 = (char *) &current->thread.TS_FPR(reg);
- char *ptr1 = (char *) &current->thread.TS_FPR(reg+1);
- int i, ret, sw = 0;
-
- if (reg & 1)
- return 0; /* invalid form: FRS/FRT must be even */
- if (flags & SW)
- sw = 7;
- ret = 0;
- for (i = 0; i < 8; ++i) {
- if (!(flags & ST)) {
- ret |= __get_user(ptr0[i^sw], addr + i);
- ret |= __get_user(ptr1[i^sw], addr + i + 8);
- } else {
- ret |= __put_user(ptr0[i^sw], addr + i);
- ret |= __put_user(ptr1[i^sw], addr + i + 8);
- }
- }
- if (ret)
- return -EFAULT;
- return 1; /* exception handled and fixed up */
-}
-
-#ifdef CONFIG_PPC64
-static int emulate_lq_stq(struct pt_regs *regs, unsigned char __user *addr,
- unsigned int reg, unsigned int flags)
-{
- char *ptr0 = (char *)&regs->gpr[reg];
- char *ptr1 = (char *)&regs->gpr[reg+1];
- int i, ret, sw = 0;
-
- if (reg & 1)
- return 0; /* invalid form: GPR must be even */
- if (flags & SW)
- sw = 7;
- ret = 0;
- for (i = 0; i < 8; ++i) {
- if (!(flags & ST)) {
- ret |= __get_user(ptr0[i^sw], addr + i);
- ret |= __get_user(ptr1[i^sw], addr + i + 8);
- } else {
- ret |= __put_user(ptr0[i^sw], addr + i);
- ret |= __put_user(ptr1[i^sw], addr + i + 8);
- }
- }
- if (ret)
- return -EFAULT;
- return 1; /* exception handled and fixed up */
-}
-#endif /* CONFIG_PPC64 */
#ifdef CONFIG_SPE
@@ -636,133 +282,21 @@ static int emulate_spe(struct pt_regs *regs, unsigned int reg,
}
#endif /* CONFIG_SPE */
-#ifdef CONFIG_VSX
-/*
- * Emulate VSX instructions...
- */
-static int emulate_vsx(unsigned char __user *addr, unsigned int reg,
- unsigned int areg, struct pt_regs *regs,
- unsigned int flags, unsigned int length,
- unsigned int elsize)
-{
- char *ptr;
- unsigned long *lptr;
- int ret = 0;
- int sw = 0;
- int i, j;
-
- /* userland only */
- if (unlikely(!user_mode(regs)))
- return 0;
-
- flush_vsx_to_thread(current);
-
- if (reg < 32)
- ptr = (char *) &current->thread.fp_state.fpr[reg][0];
- else
- ptr = (char *) &current->thread.vr_state.vr[reg - 32];
-
- lptr = (unsigned long *) ptr;
-
-#ifdef __LITTLE_ENDIAN__
- if (flags & SW) {
- elsize = length;
- sw = length-1;
- } else {
- /*
- * The elements are BE ordered, even in LE mode, so process
- * them in reverse order.
- */
- addr += length - elsize;
-
- /* 8 byte memory accesses go in the top 8 bytes of the VR */
- if (length == 8)
- ptr += 8;
- }
-#else
- if (flags & SW)
- sw = elsize-1;
-#endif
-
- for (j = 0; j < length; j += elsize) {
- for (i = 0; i < elsize; ++i) {
- if (flags & ST)
- ret |= __put_user(ptr[i^sw], addr + i);
- else
- ret |= __get_user(ptr[i^sw], addr + i);
- }
- ptr += elsize;
-#ifdef __LITTLE_ENDIAN__
- addr -= elsize;
-#else
- addr += elsize;
-#endif
- }
-
-#ifdef __BIG_ENDIAN__
-#define VSX_HI 0
-#define VSX_LO 1
-#else
-#define VSX_HI 1
-#define VSX_LO 0
-#endif
-
- if (!ret) {
- if (flags & U)
- regs->gpr[areg] = regs->dar;
-
- /* Splat load copies the same data to top and bottom 8 bytes */
- if (flags & SPLT)
- lptr[VSX_LO] = lptr[VSX_HI];
- /* For 8 byte loads, zero the low 8 bytes */
- else if (!(flags & ST) && (8 == length))
- lptr[VSX_LO] = 0;
- } else
- return -EFAULT;
-
- return 1;
-}
-#endif
-
/*
* Called on alignment exception. Attempts to fixup
*
* Return 1 on success
* Return 0 if unable to handle the interrupt
* Return -EFAULT if data address is bad
+ * Other negative return values indicate that the instruction can't
+ * be emulated, and the process should be given a SIGBUS.
*/
int fix_alignment(struct pt_regs *regs)
{
- unsigned int instr, nb, flags, instruction = 0;
- unsigned int reg, areg;
- unsigned int dsisr;
- unsigned char __user *addr;
- unsigned long p, swiz;
- int ret, i;
- union data {
- u64 ll;
- double dd;
- unsigned char v[8];
- struct {
-#ifdef __LITTLE_ENDIAN__
- int low32;
- unsigned hi32;
-#else
- unsigned hi32;
- int low32;
-#endif
- } x32;
- struct {
-#ifdef __LITTLE_ENDIAN__
- short low16;
- unsigned char hi48[6];
-#else
- unsigned char hi48[6];
- short low16;
-#endif
- } x16;
- } data;
+ unsigned int instr;
+ struct instruction_op op;
+ int r, type;
/*
* We require a complete register set, if not, then our assembly
@@ -770,121 +304,23 @@ int fix_alignment(struct pt_regs *regs)
*/
CHECK_FULL_REGS(regs);
- dsisr = regs->dsisr;
-
- /* Some processors don't provide us with a DSISR we can use here,
- * let's make one up from the instruction
- */
- if (cpu_has_feature(CPU_FTR_NODSISRALIGN)) {
- unsigned long pc = regs->nip;
-
- if (cpu_has_feature(CPU_FTR_PPC_LE) && (regs->msr & MSR_LE))
- pc ^= 4;
- if (unlikely(__get_user_inatomic(instr,
- (unsigned int __user *)pc)))
- return -EFAULT;
- if (cpu_has_feature(CPU_FTR_REAL_LE) && (regs->msr & MSR_LE))
- instr = cpu_to_le32(instr);
- dsisr = make_dsisr(instr);
- instruction = instr;
+ if (unlikely(__get_user(instr, (unsigned int __user *)regs->nip)))
+ return -EFAULT;
+ if ((regs->msr & MSR_LE) != (MSR_KERNEL & MSR_LE)) {
+ /* We don't handle PPC little-endian any more... */
+ if (cpu_has_feature(CPU_FTR_PPC_LE))
+ return -EIO;
+ instr = swab32(instr);
}
- /* extract the operation and registers from the dsisr */
- reg = (dsisr >> 5) & 0x1f; /* source/dest register */
- areg = dsisr & 0x1f; /* register to update */
-
#ifdef CONFIG_SPE
if ((instr >> 26) == 0x4) {
+ int reg = (instr >> 21) & 0x1f;
PPC_WARN_ALIGNMENT(spe, regs);
return emulate_spe(regs, reg, instr);
}
#endif
- instr = (dsisr >> 10) & 0x7f;
- instr |= (dsisr >> 13) & 0x60;
-
- /* Lookup the operation in our table */
- nb = aligninfo[instr].len;
- flags = aligninfo[instr].flags;
-
- /*
- * Handle some cases which give overlaps in the DSISR values.
- */
- if (IS_XFORM(instruction)) {
- switch (get_xop(instruction)) {
- case 532: /* ldbrx */
- nb = 8;
- flags = LD+SW;
- break;
- case 660: /* stdbrx */
- nb = 8;
- flags = ST+SW;
- break;
- case 20: /* lwarx */
- case 84: /* ldarx */
- case 116: /* lharx */
- case 276: /* lqarx */
- return 0; /* not emulated ever */
- }
- }
-
- /* Byteswap little endian loads and stores */
- swiz = 0;
- if ((regs->msr & MSR_LE) != (MSR_KERNEL & MSR_LE)) {
- flags ^= SW;
-#ifdef __BIG_ENDIAN__
- /*
- * So-called "PowerPC little endian" mode works by
- * swizzling addresses rather than by actually doing
- * any byte-swapping. To emulate this, we XOR each
- * byte address with 7. We also byte-swap, because
- * the processor's address swizzling depends on the
- * operand size (it xors the address with 7 for bytes,
- * 6 for halfwords, 4 for words, 0 for doublewords) but
- * we will xor with 7 and load/store each byte separately.
- */
- if (cpu_has_feature(CPU_FTR_PPC_LE))
- swiz = 7;
-#endif
- }
-
- /* DAR has the operand effective address */
- addr = (unsigned char __user *)regs->dar;
-
-#ifdef CONFIG_VSX
- if ((instruction & 0xfc00003e) == 0x7c000018) {
- unsigned int elsize;
-
- /* Additional register addressing bit (64 VSX vs 32 FPR/GPR) */
- reg |= (instruction & 0x1) << 5;
- /* Simple inline decoder instead of a table */
- /* VSX has only 8 and 16 byte memory accesses */
- nb = 8;
- if (instruction & 0x200)
- nb = 16;
-
- /* Vector stores in little-endian mode swap individual
- elements, so process them separately */
- elsize = 4;
- if (instruction & 0x80)
- elsize = 8;
-
- flags = 0;
- if ((regs->msr & MSR_LE) != (MSR_KERNEL & MSR_LE))
- flags |= SW;
- if (instruction & 0x100)
- flags |= ST;
- if (instruction & 0x040)
- flags |= U;
- /* splat load needs a special decoder */
- if ((instruction & 0x400) == 0){
- flags |= SPLT;
- nb = 8;
- }
- PPC_WARN_ALIGNMENT(vsx, regs);
- return emulate_vsx(addr, reg, areg, regs, flags, nb, elsize);
- }
-#endif
/*
* ISA 3.0 (such as P9) copy, copy_first, paste and paste_last alignment
@@ -896,173 +332,27 @@ int fix_alignment(struct pt_regs *regs)
* when pasting to a co-processor. Furthermore, paste_last is the
* synchronisation point for preceding copy/paste sequences.
*/
- if ((instruction & 0xfc0006fe) == PPC_INST_COPY)
+ if ((instr & 0xfc0006fe) == PPC_INST_COPY)
return -EIO;
- /* A size of 0 indicates an instruction we don't support, with
- * the exception of DCBZ which is handled as a special case here
- */
- if (instr == DCBZ) {
- PPC_WARN_ALIGNMENT(dcbz, regs);
- return emulate_dcbz(regs, addr);
- }
- if (unlikely(nb == 0))
- return 0;
-
- /* Load/Store Multiple instructions are handled in their own
- * function
- */
- if (flags & M) {
- PPC_WARN_ALIGNMENT(multiple, regs);
- return emulate_multiple(regs, addr, reg, nb,
- flags, instr, swiz);
- }
-
- /* Verify the address of the operand */
- if (unlikely(user_mode(regs) &&
- !access_ok((flags & ST ? VERIFY_WRITE : VERIFY_READ),
- addr, nb)))
- return -EFAULT;
-
- /* Force the fprs into the save area so we can reference them */
- if (flags & F) {
- /* userland only */
- if (unlikely(!user_mode(regs)))
- return 0;
- flush_fp_to_thread(current);
- }
+ r = analyse_instr(&op, regs, instr);
+ if (r < 0)
+ return -EINVAL;
- if (nb == 16) {
- if (flags & F) {
- /* Special case for 16-byte FP loads and stores */
- PPC_WARN_ALIGNMENT(fp_pair, regs);
- return emulate_fp_pair(addr, reg, flags);
- } else {
-#ifdef CONFIG_PPC64
- /* Special case for 16-byte loads and stores */
- PPC_WARN_ALIGNMENT(lq_stq, regs);
- return emulate_lq_stq(regs, addr, reg, flags);
-#else
- return 0;
-#endif
- }
- }
-
- PPC_WARN_ALIGNMENT(unaligned, regs);
-
- /* If we are loading, get the data from user space, else
- * get it from register values
- */
- if (!(flags & ST)) {
- unsigned int start = 0;
-
- switch (nb) {
- case 4:
- start = offsetof(union data, x32.low32);
- break;
- case 2:
- start = offsetof(union data, x16.low16);
- break;
- }
-
- data.ll = 0;
- ret = 0;
- p = (unsigned long)addr;
-
- for (i = 0; i < nb; i++)
- ret |= __get_user_inatomic(data.v[start + i],
- SWIZ_PTR(p++));
-
- if (unlikely(ret))
- return -EFAULT;
-
- } else if (flags & F) {
- data.ll = current->thread.TS_FPR(reg);
- if (flags & S) {
- /* Single-precision FP store requires conversion... */
-#ifdef CONFIG_PPC_FPU
- preempt_disable();
- enable_kernel_fp();
- cvt_df(&data.dd, (float *)&data.x32.low32);
- disable_kernel_fp();
- preempt_enable();
-#else
- return 0;
-#endif
- }
- } else
- data.ll = regs->gpr[reg];
-
- if (flags & SW) {
- switch (nb) {
- case 8:
- data.ll = swab64(data.ll);
- break;
- case 4:
- data.x32.low32 = swab32(data.x32.low32);
- break;
- case 2:
- data.x16.low16 = swab16(data.x16.low16);
- break;
- }
- }
-
- /* Perform other misc operations like sign extension
- * or floating point single precision conversion
- */
- switch (flags & ~(U|SW)) {
- case LD+SE: /* sign extending integer loads */
- case LD+F+SE: /* sign extend for lfiwax */
- if ( nb == 2 )
- data.ll = data.x16.low16;
- else /* nb must be 4 */
- data.ll = data.x32.low32;
- break;
-
- /* Single-precision FP load requires conversion... */
- case LD+F+S:
-#ifdef CONFIG_PPC_FPU
- preempt_disable();
- enable_kernel_fp();
- cvt_fd((float *)&data.x32.low32, &data.dd);
- disable_kernel_fp();
- preempt_enable();
-#else
- return 0;
-#endif
- break;
+ type = op.type & INSTR_TYPE_MASK;
+ if (!OP_IS_LOAD_STORE(type)) {
+ if (op.type != CACHEOP + DCBZ)
+ return -EINVAL;
+ PPC_WARN_ALIGNMENT(dcbz, regs);
+ r = emulate_dcbz(op.ea, regs);
+ } else {
+ if (type == LARX || type == STCX)
+ return -EIO;
+ PPC_WARN_ALIGNMENT(unaligned, regs);
+ r = emulate_loadstore(regs, &op);
}
- /* Store result to memory or update registers */
- if (flags & ST) {
- unsigned int start = 0;
-
- switch (nb) {
- case 4:
- start = offsetof(union data, x32.low32);
- break;
- case 2:
- start = offsetof(union data, x16.low16);
- break;
- }
-
- ret = 0;
- p = (unsigned long)addr;
-
- for (i = 0; i < nb; i++)
- ret |= __put_user_inatomic(data.v[start + i],
- SWIZ_PTR(p++));
-
- if (unlikely(ret))
- return -EFAULT;
- } else if (flags & F)
- current->thread.TS_FPR(reg) = data.ll;
- else
- regs->gpr[reg] = data.ll;
-
- /* Update RA as needed */
- if (flags & U)
- regs->gpr[areg] = regs->dar;
-
- return 1;
+ if (!r)
+ return 1;
+ return r;
}
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 709e23425317..8cfb20e38cfe 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -100,12 +100,12 @@ int main(void)
OFFSET(THREAD_NORMSAVES, thread_struct, normsave[0]);
#endif
OFFSET(THREAD_FPEXC_MODE, thread_struct, fpexc_mode);
- OFFSET(THREAD_FPSTATE, thread_struct, fp_state);
+ OFFSET(THREAD_FPSTATE, thread_struct, fp_state.fpr);
OFFSET(THREAD_FPSAVEAREA, thread_struct, fp_save_area);
OFFSET(FPSTATE_FPSCR, thread_fp_state, fpscr);
OFFSET(THREAD_LOAD_FP, thread_struct, load_fp);
#ifdef CONFIG_ALTIVEC
- OFFSET(THREAD_VRSTATE, thread_struct, vr_state);
+ OFFSET(THREAD_VRSTATE, thread_struct, vr_state.vr);
OFFSET(THREAD_VRSAVEAREA, thread_struct, vr_save_area);
OFFSET(THREAD_VRSAVE, thread_struct, vrsave);
OFFSET(THREAD_USED_VR, thread_struct, used_vr);
@@ -145,9 +145,9 @@ int main(void)
OFFSET(THREAD_TM_PPR, thread_struct, tm_ppr);
OFFSET(THREAD_TM_DSCR, thread_struct, tm_dscr);
OFFSET(PT_CKPT_REGS, thread_struct, ckpt_regs);
- OFFSET(THREAD_CKVRSTATE, thread_struct, ckvr_state);
+ OFFSET(THREAD_CKVRSTATE, thread_struct, ckvr_state.vr);
OFFSET(THREAD_CKVRSAVE, thread_struct, ckvrsave);
- OFFSET(THREAD_CKFPSTATE, thread_struct, ckfp_state);
+ OFFSET(THREAD_CKFPSTATE, thread_struct, ckfp_state.fpr);
/* Local pt_regs on stack for Transactional Memory funcs. */
DEFINE(TM_FRAME_SIZE, STACK_FRAME_OVERHEAD +
sizeof(struct pt_regs) + 16);
@@ -485,6 +485,7 @@ int main(void)
OFFSET(KVM_ENABLED_HCALLS, kvm, arch.enabled_hcalls);
OFFSET(KVM_VRMA_SLB_V, kvm, arch.vrma_slb_v);
OFFSET(KVM_RADIX, kvm, arch.radix);
+ OFFSET(KVM_FWNMI, kvm, arch.fwnmi_enabled);
OFFSET(VCPU_DSISR, kvm_vcpu, arch.shregs.dsisr);
OFFSET(VCPU_DAR, kvm_vcpu, arch.shregs.dar);
OFFSET(VCPU_VPA, kvm_vcpu, arch.vpa.pinned_addr);
@@ -513,6 +514,7 @@ int main(void)
OFFSET(VCPU_PENDING_EXC, kvm_vcpu, arch.pending_exceptions);
OFFSET(VCPU_CEDED, kvm_vcpu, arch.ceded);
OFFSET(VCPU_PRODDED, kvm_vcpu, arch.prodded);
+ OFFSET(VCPU_DBELL_REQ, kvm_vcpu, arch.doorbell_request);
OFFSET(VCPU_MMCR, kvm_vcpu, arch.mmcr);
OFFSET(VCPU_PMC, kvm_vcpu, arch.pmc);
OFFSET(VCPU_SPMC, kvm_vcpu, arch.spmc);
@@ -542,6 +544,7 @@ int main(void)
OFFSET(VCPU_WORT, kvm_vcpu, arch.wort);
OFFSET(VCPU_TID, kvm_vcpu, arch.tid);
OFFSET(VCPU_PSSCR, kvm_vcpu, arch.psscr);
+ OFFSET(VCPU_HFSCR, kvm_vcpu, arch.hfscr);
OFFSET(VCORE_ENTRY_EXIT, kvmppc_vcore, entry_exit_map);
OFFSET(VCORE_IN_GUEST, kvmppc_vcore, in_guest);
OFFSET(VCORE_NAPPING_THREADS, kvmppc_vcore, napping_threads);
@@ -742,9 +745,19 @@ int main(void)
OFFSET(PACA_THREAD_MASK, paca_struct, thread_mask);
OFFSET(PACA_SUBCORE_SIBLING_MASK, paca_struct, subcore_sibling_mask);
OFFSET(PACA_SIBLING_PACA_PTRS, paca_struct, thread_sibling_pacas);
+ OFFSET(PACA_REQ_PSSCR, paca_struct, requested_psscr);
+#define STOP_SPR(x, f) OFFSET(x, paca_struct, stop_sprs.f)
+ STOP_SPR(STOP_PID, pid);
+ STOP_SPR(STOP_LDBAR, ldbar);
+ STOP_SPR(STOP_FSCR, fscr);
+ STOP_SPR(STOP_HFSCR, hfscr);
+ STOP_SPR(STOP_MMCR1, mmcr1);
+ STOP_SPR(STOP_MMCR2, mmcr2);
+ STOP_SPR(STOP_MMCRA, mmcra);
#endif
DEFINE(PPC_DBELL_SERVER, PPC_DBELL_SERVER);
+ DEFINE(PPC_DBELL_MSGTYPE, PPC_DBELL_MSGTYPE);
#ifdef CONFIG_PPC_8xx
DEFINE(VIRT_IMMR_BASE, (u64)__fix_to_virt(FIX_IMMR_BASE));
diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c
index 8275858a434d..3f46ca1c59f9 100644
--- a/arch/powerpc/kernel/btext.c
+++ b/arch/powerpc/kernel/btext.c
@@ -253,7 +253,7 @@ int __init btext_find_display(int allow_nonstdout)
for_each_node_by_type(np, "display") {
if (of_get_property(np, "linux,opened", NULL)) {
- printk("trying %s ...\n", np->full_name);
+ printk("trying %pOF ...\n", np);
rc = btext_initialize(np);
printk("result: %d\n", rc);
}
diff --git a/arch/powerpc/kernel/cacheinfo.c b/arch/powerpc/kernel/cacheinfo.c
index c641983bbdd6..a8f20e5928e1 100644
--- a/arch/powerpc/kernel/cacheinfo.c
+++ b/arch/powerpc/kernel/cacheinfo.c
@@ -167,10 +167,10 @@ static void release_cache_debugcheck(struct cache *cache)
list_for_each_entry(iter, &cache_list, list)
WARN_ONCE(iter->next_local == cache,
- "cache for %s(%s) refers to cache for %s(%s)\n",
- iter->ofnode->full_name,
+ "cache for %pOF(%s) refers to cache for %pOF(%s)\n",
+ iter->ofnode,
cache_type_string(iter),
- cache->ofnode->full_name,
+ cache->ofnode,
cache_type_string(cache));
}
@@ -179,8 +179,8 @@ static void release_cache(struct cache *cache)
if (!cache)
return;
- pr_debug("freeing L%d %s cache for %s\n", cache->level,
- cache_type_string(cache), cache->ofnode->full_name);
+ pr_debug("freeing L%d %s cache for %pOF\n", cache->level,
+ cache_type_string(cache), cache->ofnode);
release_cache_debugcheck(cache);
list_del(&cache->list);
@@ -194,8 +194,8 @@ static void cache_cpu_set(struct cache *cache, int cpu)
while (next) {
WARN_ONCE(cpumask_test_cpu(cpu, &next->shared_cpu_map),
- "CPU %i already accounted in %s(%s)\n",
- cpu, next->ofnode->full_name,
+ "CPU %i already accounted in %pOF(%s)\n",
+ cpu, next->ofnode,
cache_type_string(next));
cpumask_set_cpu(cpu, &next->shared_cpu_map);
next = next->next_local;
@@ -355,7 +355,7 @@ static int cache_is_unified_d(const struct device_node *np)
*/
static struct cache *cache_do_one_devnode_unified(struct device_node *node, int level)
{
- pr_debug("creating L%d ucache for %s\n", level, node->full_name);
+ pr_debug("creating L%d ucache for %pOF\n", level, node);
return new_cache(cache_is_unified_d(node), level, node);
}
@@ -365,8 +365,8 @@ static struct cache *cache_do_one_devnode_split(struct device_node *node,
{
struct cache *dcache, *icache;
- pr_debug("creating L%d dcache and icache for %s\n", level,
- node->full_name);
+ pr_debug("creating L%d dcache and icache for %pOF\n", level,
+ node);
dcache = new_cache(CACHE_TYPE_DATA, level, node);
icache = new_cache(CACHE_TYPE_INSTRUCTION, level, node);
@@ -679,7 +679,6 @@ static struct kobj_type cache_index_type = {
static void cacheinfo_create_index_opt_attrs(struct cache_index_dir *dir)
{
- const char *cache_name;
const char *cache_type;
struct cache *cache;
char *buf;
@@ -690,7 +689,6 @@ static void cacheinfo_create_index_opt_attrs(struct cache_index_dir *dir)
return;
cache = dir->cache;
- cache_name = cache->ofnode->full_name;
cache_type = cache_type_string(cache);
/* We don't want to create an attribute that can't provide a
@@ -707,14 +705,14 @@ static void cacheinfo_create_index_opt_attrs(struct cache_index_dir *dir)
rc = attr->show(&dir->kobj, attr, buf);
if (rc <= 0) {
pr_debug("not creating %s attribute for "
- "%s(%s) (rc = %zd)\n",
- attr->attr.name, cache_name,
+ "%pOF(%s) (rc = %zd)\n",
+ attr->attr.name, cache->ofnode,
cache_type, rc);
continue;
}
if (sysfs_create_file(&dir->kobj, &attr->attr))
- pr_debug("could not create %s attribute for %s(%s)\n",
- attr->attr.name, cache_name, cache_type);
+ pr_debug("could not create %s attribute for %pOF(%s)\n",
+ attr->attr.name, cache->ofnode, cache_type);
}
kfree(buf);
@@ -831,8 +829,8 @@ static void cache_cpu_clear(struct cache *cache, int cpu)
struct cache *next = cache->next_local;
WARN_ONCE(!cpumask_test_cpu(cpu, &cache->shared_cpu_map),
- "CPU %i not accounted in %s(%s)\n",
- cpu, cache->ofnode->full_name,
+ "CPU %i not accounted in %pOF(%s)\n",
+ cpu, cache->ofnode,
cache_type_string(cache));
cpumask_clear_cpu(cpu, &cache->shared_cpu_map);
diff --git a/arch/powerpc/kernel/cpu_setup_power.S b/arch/powerpc/kernel/cpu_setup_power.S
index 10cb2896b2ae..610955fe8b81 100644
--- a/arch/powerpc/kernel/cpu_setup_power.S
+++ b/arch/powerpc/kernel/cpu_setup_power.S
@@ -218,13 +218,20 @@ __init_tlb_power8:
ptesync
1: blr
+/*
+ * Flush the TLB in hash mode. Hash must flush with RIC=2 once for process
+ * and one for partition scope to clear process and partition table entries.
+ */
__init_tlb_power9:
- li r6,POWER9_TLB_SETS_HASH
+ li r6,POWER9_TLB_SETS_HASH - 1
mtctr r6
li r7,0xc00 /* IS field = 0b11 */
+ li r8,0
ptesync
-2: tlbiel r7
- addi r7,r7,0x1000
+ PPC_TLBIEL(7, 8, 2, 1, 0)
+ PPC_TLBIEL(7, 8, 2, 0, 0)
+2: addi r7,r7,0x1000
+ PPC_TLBIEL(7, 8, 0, 0, 0)
bdnz 2b
ptesync
1: blr
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 6f849832a669..760872916013 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -1259,10 +1259,10 @@ static struct cpu_spec __initdata cpu_specs[] = {
.platform = "ppc603",
},
#endif /* CONFIG_PPC_BOOK3S_32 */
-#ifdef CONFIG_8xx
+#ifdef CONFIG_PPC_8xx
{ /* 8xx */
.pvr_mask = 0xffff0000,
- .pvr_value = 0x00500000,
+ .pvr_value = PVR_8xx,
.cpu_name = "8xx",
/* CPU_FTR_MAYBE_CAN_DOZE is possible,
* if the 8xx code is there.... */
@@ -1274,7 +1274,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
.machine_check = machine_check_8xx,
.platform = "ppc823",
},
-#endif /* CONFIG_8xx */
+#endif /* CONFIG_PPC_8xx */
#ifdef CONFIG_40x
{ /* 403GC */
.pvr_mask = 0xffffff00,
@@ -1936,6 +1936,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
.machine_check = machine_check_440A,
.platform = "ppc440",
},
+#ifdef CONFIG_PPC_47x
{ /* 476 DD2 core */
.pvr_mask = 0xffffffff,
.pvr_value = 0x11a52080,
@@ -1992,6 +1993,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
.machine_check = machine_check_47x,
.platform = "ppc470",
},
+#endif /* CONFIG_PPC_47x */
{ /* default match */
.pvr_mask = 0x00000000,
.pvr_value = 0x00000000,
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index fb7cbaa37658..8f7abf9baa63 100644
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -105,6 +105,11 @@ static u64 dma_iommu_get_required_mask(struct device *dev)
return mask;
}
+int dma_iommu_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return dma_addr == IOMMU_MAPPING_ERROR;
+}
+
struct dma_map_ops dma_iommu_ops = {
.alloc = dma_iommu_alloc_coherent,
.free = dma_iommu_free_coherent,
@@ -115,5 +120,6 @@ struct dma_map_ops dma_iommu_ops = {
.map_page = dma_iommu_map_page,
.unmap_page = dma_iommu_unmap_page,
.get_required_mask = dma_iommu_get_required_mask,
+ .mapping_error = dma_iommu_mapping_error,
};
EXPORT_SYMBOL(dma_iommu_ops);
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 41c749586bd2..4194bbbbdb10 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -314,18 +314,6 @@ EXPORT_SYMBOL(dma_set_coherent_mask);
#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
-int __dma_set_mask(struct device *dev, u64 dma_mask)
-{
- const struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
- if ((dma_ops != NULL) && (dma_ops->set_dma_mask != NULL))
- return dma_ops->set_dma_mask(dev, dma_mask);
- if (!dev->dma_mask || !dma_supported(dev, dma_mask))
- return -EIO;
- *dev->dma_mask = dma_mask;
- return 0;
-}
-
int dma_set_mask(struct device *dev, u64 dma_mask)
{
if (ppc_md.dma_set_mask)
@@ -338,7 +326,10 @@ int dma_set_mask(struct device *dev, u64 dma_mask)
return phb->controller_ops.dma_set_mask(pdev, dma_mask);
}
- return __dma_set_mask(dev, dma_mask);
+ if (!dev->dma_mask || !dma_supported(dev, dma_mask))
+ return -EIO;
+ *dev->dma_mask = dma_mask;
+ return 0;
}
EXPORT_SYMBOL(dma_set_mask);
diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c
index 4c7656dc4e04..7275fed271af 100644
--- a/arch/powerpc/kernel/dt_cpu_ftrs.c
+++ b/arch/powerpc/kernel/dt_cpu_ftrs.c
@@ -94,9 +94,6 @@ static void (*init_pmu_registers)(void);
static void cpufeatures_flush_tlb(void)
{
- unsigned long rb;
- unsigned int i, num_sets;
-
/*
* This is a temporary measure to keep equivalent TLB flush as the
* cputable based setup code.
@@ -105,24 +102,15 @@ static void cpufeatures_flush_tlb(void)
case PVR_POWER8:
case PVR_POWER8E:
case PVR_POWER8NVL:
- num_sets = POWER8_TLB_SETS;
+ __flush_tlb_power8(TLB_INVAL_SCOPE_GLOBAL);
break;
case PVR_POWER9:
- num_sets = POWER9_TLB_SETS_HASH;
+ __flush_tlb_power9(TLB_INVAL_SCOPE_GLOBAL);
break;
default:
- num_sets = 1;
pr_err("unknown CPU version for boot TLB flush\n");
break;
}
-
- asm volatile("ptesync" : : : "memory");
- rb = TLBIEL_INVAL_SET;
- for (i = 0; i < num_sets; i++) {
- asm volatile("tlbiel %0" : : "r" (rb));
- rb += 1 << TLBIEL_INVAL_SET_SHIFT;
- }
- asm volatile("ptesync" : : : "memory");
}
static void __restore_cpu_cpufeatures(void)
diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
index 63992b2d8e15..116000b45531 100644
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -44,6 +44,7 @@
#include <asm/machdep.h>
#include <asm/ppc-pci.h>
#include <asm/rtas.h>
+#include <asm/pte-walk.h>
/** Overview:
@@ -169,10 +170,10 @@ static size_t eeh_dump_dev_log(struct eeh_dev *edev, char *buf, size_t len)
char buffer[128];
n += scnprintf(buf+n, len-n, "%04x:%02x:%02x.%01x\n",
- edev->phb->global_number, pdn->busno,
+ pdn->phb->global_number, pdn->busno,
PCI_SLOT(pdn->devfn), PCI_FUNC(pdn->devfn));
pr_warn("EEH: of node=%04x:%02x:%02x.%01x\n",
- edev->phb->global_number, pdn->busno,
+ pdn->phb->global_number, pdn->busno,
PCI_SLOT(pdn->devfn), PCI_FUNC(pdn->devfn));
eeh_ops->read_config(pdn, PCI_VENDOR_ID, 4, &cfg);
@@ -352,8 +353,7 @@ static inline unsigned long eeh_token_to_phys(unsigned long token)
* worried about _PAGE_SPLITTING/collapse. Also we will not hit
* page table free, because of init_mm.
*/
- ptep = __find_linux_pte_or_hugepte(init_mm.pgd, token,
- NULL, &hugepage_shift);
+ ptep = find_init_mm_pte(token, &hugepage_shift);
if (!ptep)
return token;
WARN_ON(hugepage_shift);
@@ -435,7 +435,7 @@ int eeh_dev_check_failure(struct eeh_dev *edev)
int ret;
int active_flags = (EEH_STATE_MMIO_ACTIVE | EEH_STATE_DMA_ACTIVE);
unsigned long flags;
- struct pci_dn *pdn;
+ struct device_node *dn;
struct pci_dev *dev;
struct eeh_pe *pe, *parent_pe, *phb_pe;
int rc = 0;
@@ -493,9 +493,10 @@ int eeh_dev_check_failure(struct eeh_dev *edev)
if (pe->state & EEH_PE_ISOLATED) {
pe->check_count++;
if (pe->check_count % EEH_MAX_FAILS == 0) {
- pdn = eeh_dev_to_pdn(edev);
- if (pdn->node)
- location = of_get_property(pdn->node, "ibm,loc-code", NULL);
+ dn = pci_device_to_OF_node(dev);
+ if (dn)
+ location = of_get_property(dn, "ibm,loc-code",
+ NULL);
printk(KERN_ERR "EEH: %d reads ignored for recovering device at "
"location=%s driver=%s pci addr=%s\n",
pe->check_count,
@@ -1018,6 +1019,10 @@ int eeh_init(void)
} else if ((ret = eeh_ops->init()))
return ret;
+ /* Initialize PHB PEs */
+ list_for_each_entry_safe(hose, tmp, &hose_list, list_node)
+ eeh_dev_phb_init_dynamic(hose);
+
/* Initialize EEH event */
ret = eeh_event_init();
if (ret)
@@ -1064,7 +1069,7 @@ core_initcall_sync(eeh_init);
*/
void eeh_add_device_early(struct pci_dn *pdn)
{
- struct pci_controller *phb;
+ struct pci_controller *phb = pdn ? pdn->phb : NULL;
struct eeh_dev *edev = pdn_to_eeh_dev(pdn);
if (!edev)
@@ -1074,7 +1079,6 @@ void eeh_add_device_early(struct pci_dn *pdn)
return;
/* USB Bus children of PCI devices will not have BUID's */
- phb = edev->phb;
if (NULL == phb ||
(eeh_has_flag(EEH_PROBE_MODE_DEVTREE) && 0 == phb->buid))
return;
diff --git a/arch/powerpc/kernel/eeh_dev.c b/arch/powerpc/kernel/eeh_dev.c
index d6b2ca70d14d..a34e6912c15e 100644
--- a/arch/powerpc/kernel/eeh_dev.c
+++ b/arch/powerpc/kernel/eeh_dev.c
@@ -50,21 +50,16 @@
*/
struct eeh_dev *eeh_dev_init(struct pci_dn *pdn)
{
- struct pci_controller *phb = pdn->phb;
struct eeh_dev *edev;
/* Allocate EEH device */
edev = kzalloc(sizeof(*edev), GFP_KERNEL);
- if (!edev) {
- pr_warn("%s: out of memory\n",
- __func__);
+ if (!edev)
return NULL;
- }
/* Associate EEH device with OF node */
pdn->edev = edev;
edev->pdn = pdn;
- edev->phb = phb;
INIT_LIST_HEAD(&edev->list);
INIT_LIST_HEAD(&edev->rmv_list);
@@ -83,21 +78,3 @@ void eeh_dev_phb_init_dynamic(struct pci_controller *phb)
/* EEH PE for PHB */
eeh_phb_pe_create(phb);
}
-
-/**
- * eeh_dev_phb_init - Create EEH devices for devices included in existing PHBs
- *
- * Scan all the existing PHBs and create EEH devices for their OF
- * nodes and their children OF nodes
- */
-static int __init eeh_dev_phb_init(void)
-{
- struct pci_controller *phb, *tmp;
-
- list_for_each_entry_safe(phb, tmp, &hose_list, list_node)
- eeh_dev_phb_init_dynamic(phb);
-
- return 0;
-}
-
-core_initcall(eeh_dev_phb_init);
diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c
index c405c79e50cd..8b840191df59 100644
--- a/arch/powerpc/kernel/eeh_driver.c
+++ b/arch/powerpc/kernel/eeh_driver.c
@@ -428,7 +428,7 @@ static void *eeh_add_virt_device(void *data, void *userdata)
if (!(edev->physfn)) {
pr_warn("%s: EEH dev %04x:%02x:%02x.%01x not for VF\n",
- __func__, edev->phb->global_number, pdn->busno,
+ __func__, pdn->phb->global_number, pdn->busno,
PCI_SLOT(pdn->devfn), PCI_FUNC(pdn->devfn));
return NULL;
}
diff --git a/arch/powerpc/kernel/eeh_pe.c b/arch/powerpc/kernel/eeh_pe.c
index cc4b206f77e4..2e8d1b2b5af4 100644
--- a/arch/powerpc/kernel/eeh_pe.c
+++ b/arch/powerpc/kernel/eeh_pe.c
@@ -230,10 +230,15 @@ void *eeh_pe_dev_traverse(struct eeh_pe *root,
* Bus/Device/Function number. The extra data referred by flag
* indicates which type of address should be used.
*/
+struct eeh_pe_get_flag {
+ int pe_no;
+ int config_addr;
+};
+
static void *__eeh_pe_get(void *data, void *flag)
{
struct eeh_pe *pe = (struct eeh_pe *)data;
- struct eeh_dev *edev = (struct eeh_dev *)flag;
+ struct eeh_pe_get_flag *tmp = (struct eeh_pe_get_flag *) flag;
/* Unexpected PHB PE */
if (pe->type & EEH_PE_PHB)
@@ -244,17 +249,17 @@ static void *__eeh_pe_get(void *data, void *flag)
* have non-zero PE address
*/
if (eeh_has_flag(EEH_VALID_PE_ZERO)) {
- if (edev->pe_config_addr == pe->addr)
+ if (tmp->pe_no == pe->addr)
return pe;
} else {
- if (edev->pe_config_addr &&
- (edev->pe_config_addr == pe->addr))
+ if (tmp->pe_no &&
+ (tmp->pe_no == pe->addr))
return pe;
}
/* Try BDF address */
- if (edev->config_addr &&
- (edev->config_addr == pe->config_addr))
+ if (tmp->config_addr &&
+ (tmp->config_addr == pe->config_addr))
return pe;
return NULL;
@@ -262,7 +267,9 @@ static void *__eeh_pe_get(void *data, void *flag)
/**
* eeh_pe_get - Search PE based on the given address
- * @edev: EEH device
+ * @phb: PCI controller
+ * @pe_no: PE number
+ * @config_addr: Config address
*
* Search the corresponding PE based on the specified address which
* is included in the eeh device. The function is used to check if
@@ -271,12 +278,14 @@ static void *__eeh_pe_get(void *data, void *flag)
* which is composed of PCI bus/device/function number, or unified
* PE address.
*/
-struct eeh_pe *eeh_pe_get(struct eeh_dev *edev)
+struct eeh_pe *eeh_pe_get(struct pci_controller *phb,
+ int pe_no, int config_addr)
{
- struct eeh_pe *root = eeh_phb_pe_get(edev->phb);
+ struct eeh_pe *root = eeh_phb_pe_get(phb);
+ struct eeh_pe_get_flag tmp = { pe_no, config_addr };
struct eeh_pe *pe;
- pe = eeh_pe_traverse(root, __eeh_pe_get, edev);
+ pe = eeh_pe_traverse(root, __eeh_pe_get, &tmp);
return pe;
}
@@ -330,11 +339,13 @@ static struct eeh_pe *eeh_pe_get_parent(struct eeh_dev *edev)
int eeh_add_to_parent_pe(struct eeh_dev *edev)
{
struct eeh_pe *pe, *parent;
+ struct pci_dn *pdn = eeh_dev_to_pdn(edev);
+ int config_addr = (pdn->busno << 8) | (pdn->devfn);
/* Check if the PE number is valid */
if (!eeh_has_flag(EEH_VALID_PE_ZERO) && !edev->pe_config_addr) {
pr_err("%s: Invalid PE#0 for edev 0x%x on PHB#%x\n",
- __func__, edev->config_addr, edev->phb->global_number);
+ __func__, config_addr, pdn->phb->global_number);
return -EINVAL;
}
@@ -344,7 +355,7 @@ int eeh_add_to_parent_pe(struct eeh_dev *edev)
* PE should be composed of PCI bus and its subordinate
* components.
*/
- pe = eeh_pe_get(edev);
+ pe = eeh_pe_get(pdn->phb, edev->pe_config_addr, config_addr);
if (pe && !(pe->type & EEH_PE_INVALID)) {
/* Mark the PE as type of PCI bus */
pe->type = EEH_PE_BUS;
@@ -353,11 +364,11 @@ int eeh_add_to_parent_pe(struct eeh_dev *edev)
/* Put the edev to PE */
list_add_tail(&edev->list, &pe->edevs);
pr_debug("EEH: Add %04x:%02x:%02x.%01x to Bus PE#%x\n",
- edev->phb->global_number,
- edev->config_addr >> 8,
- PCI_SLOT(edev->config_addr & 0xFF),
- PCI_FUNC(edev->config_addr & 0xFF),
- pe->addr);
+ pdn->phb->global_number,
+ pdn->busno,
+ PCI_SLOT(pdn->devfn),
+ PCI_FUNC(pdn->devfn),
+ pe->addr);
return 0;
} else if (pe && (pe->type & EEH_PE_INVALID)) {
list_add_tail(&edev->list, &pe->edevs);
@@ -376,25 +387,25 @@ int eeh_add_to_parent_pe(struct eeh_dev *edev)
pr_debug("EEH: Add %04x:%02x:%02x.%01x to Device "
"PE#%x, Parent PE#%x\n",
- edev->phb->global_number,
- edev->config_addr >> 8,
- PCI_SLOT(edev->config_addr & 0xFF),
- PCI_FUNC(edev->config_addr & 0xFF),
- pe->addr, pe->parent->addr);
+ pdn->phb->global_number,
+ pdn->busno,
+ PCI_SLOT(pdn->devfn),
+ PCI_FUNC(pdn->devfn),
+ pe->addr, pe->parent->addr);
return 0;
}
/* Create a new EEH PE */
if (edev->physfn)
- pe = eeh_pe_alloc(edev->phb, EEH_PE_VF);
+ pe = eeh_pe_alloc(pdn->phb, EEH_PE_VF);
else
- pe = eeh_pe_alloc(edev->phb, EEH_PE_DEVICE);
+ pe = eeh_pe_alloc(pdn->phb, EEH_PE_DEVICE);
if (!pe) {
pr_err("%s: out of memory!\n", __func__);
return -ENOMEM;
}
pe->addr = edev->pe_config_addr;
- pe->config_addr = edev->config_addr;
+ pe->config_addr = config_addr;
/*
* Put the new EEH PE into hierarchy tree. If the parent
@@ -404,10 +415,10 @@ int eeh_add_to_parent_pe(struct eeh_dev *edev)
*/
parent = eeh_pe_get_parent(edev);
if (!parent) {
- parent = eeh_phb_pe_get(edev->phb);
+ parent = eeh_phb_pe_get(pdn->phb);
if (!parent) {
pr_err("%s: No PHB PE is found (PHB Domain=%d)\n",
- __func__, edev->phb->global_number);
+ __func__, pdn->phb->global_number);
edev->pe = NULL;
kfree(pe);
return -EEXIST;
@@ -424,10 +435,10 @@ int eeh_add_to_parent_pe(struct eeh_dev *edev)
edev->pe = pe;
pr_debug("EEH: Add %04x:%02x:%02x.%01x to "
"Device PE#%x, Parent PE#%x\n",
- edev->phb->global_number,
- edev->config_addr >> 8,
- PCI_SLOT(edev->config_addr & 0xFF),
- PCI_FUNC(edev->config_addr & 0xFF),
+ pdn->phb->global_number,
+ pdn->busno,
+ PCI_SLOT(pdn->devfn),
+ PCI_FUNC(pdn->devfn),
pe->addr, pe->parent->addr);
return 0;
@@ -446,13 +457,14 @@ int eeh_rmv_from_parent_pe(struct eeh_dev *edev)
{
struct eeh_pe *pe, *parent, *child;
int cnt;
+ struct pci_dn *pdn = eeh_dev_to_pdn(edev);
if (!edev->pe) {
pr_debug("%s: No PE found for device %04x:%02x:%02x.%01x\n",
- __func__, edev->phb->global_number,
- edev->config_addr >> 8,
- PCI_SLOT(edev->config_addr & 0xFF),
- PCI_FUNC(edev->config_addr & 0xFF));
+ __func__, pdn->phb->global_number,
+ pdn->busno,
+ PCI_SLOT(pdn->devfn),
+ PCI_FUNC(pdn->devfn));
return -EEXIST;
}
@@ -712,10 +724,10 @@ static void eeh_bridge_check_link(struct eeh_dev *edev)
return;
pr_debug("%s: Check PCIe link for %04x:%02x:%02x.%01x ...\n",
- __func__, edev->phb->global_number,
- edev->config_addr >> 8,
- PCI_SLOT(edev->config_addr & 0xFF),
- PCI_FUNC(edev->config_addr & 0xFF));
+ __func__, pdn->phb->global_number,
+ pdn->busno,
+ PCI_SLOT(pdn->devfn),
+ PCI_FUNC(pdn->devfn));
/* Check slot status */
cap = edev->pcie_cap;
diff --git a/arch/powerpc/kernel/eeh_sysfs.c b/arch/powerpc/kernel/eeh_sysfs.c
index 1ceecdda810b..797549289798 100644
--- a/arch/powerpc/kernel/eeh_sysfs.c
+++ b/arch/powerpc/kernel/eeh_sysfs.c
@@ -51,7 +51,6 @@ static ssize_t eeh_show_##_name(struct device *dev, \
static DEVICE_ATTR(_name, S_IRUGO, eeh_show_##_name, NULL);
EEH_SHOW_ATTR(eeh_mode, mode, "0x%x");
-EEH_SHOW_ATTR(eeh_config_addr, config_addr, "0x%x");
EEH_SHOW_ATTR(eeh_pe_config_addr, pe_config_addr, "0x%x");
static ssize_t eeh_pe_state_show(struct device *dev,
@@ -103,7 +102,6 @@ void eeh_sysfs_add_device(struct pci_dev *pdev)
return;
rc += device_create_file(&pdev->dev, &dev_attr_eeh_mode);
- rc += device_create_file(&pdev->dev, &dev_attr_eeh_config_addr);
rc += device_create_file(&pdev->dev, &dev_attr_eeh_pe_config_addr);
rc += device_create_file(&pdev->dev, &dev_attr_eeh_pe_state);
@@ -128,7 +126,6 @@ void eeh_sysfs_remove_device(struct pci_dev *pdev)
}
device_remove_file(&pdev->dev, &dev_attr_eeh_mode);
- device_remove_file(&pdev->dev, &dev_attr_eeh_config_addr);
device_remove_file(&pdev->dev, &dev_attr_eeh_pe_config_addr);
device_remove_file(&pdev->dev, &dev_attr_eeh_pe_state);
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 8587059ad848..e780e1fbf6c2 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -43,6 +43,13 @@
#define LOAD_MSR_KERNEL(r, x) li r,(x)
#endif
+/*
+ * Align to 4k in order to ensure that all functions modyfing srr0/srr1
+ * fit into one page in order to not encounter a TLB miss between the
+ * modification of srr0/srr1 and the associated rfi.
+ */
+ .align 12
+
#ifdef CONFIG_BOOKE
.globl mcheck_transfer_to_handler
mcheck_transfer_to_handler:
@@ -586,6 +593,10 @@ ppc_swapcontext:
handle_page_fault:
stw r4,_DAR(r1)
addi r3,r1,STACK_FRAME_OVERHEAD
+#ifdef CONFIG_6xx
+ andis. r0,r5,DSISR_DABRMATCH@h
+ bne- handle_dabr_fault
+#endif
bl do_page_fault
cmpwi r3,0
beq+ ret_from_except
@@ -599,6 +610,17 @@ handle_page_fault:
bl bad_page_fault
b ret_from_except_full
+#ifdef CONFIG_6xx
+ /* We have a data breakpoint exception - handle it */
+handle_dabr_fault:
+ SAVE_NVGPRS(r1)
+ lwz r0,_TRAP(r1)
+ clrrwi r0,r0,1
+ stw r0,_TRAP(r1)
+ bl do_break
+ b ret_from_except_full
+#endif
+
/*
* This routine switches between two different tasks. The process
* state of one is saved on its kernel stack. Then the state
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index bfbad08a1207..4a0fd4f40245 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -57,7 +57,7 @@ system_call_common:
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
BEGIN_FTR_SECTION
extrdi. r10, r12, 1, (63-MSR_TS_T_LG) /* transaction active? */
- bne tabort_syscall
+ bne .Ltabort_syscall
END_FTR_SECTION_IFSET(CPU_FTR_TM)
#endif
andi. r10,r12,MSR_PR
@@ -143,6 +143,7 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR)
mtmsrd r11,1
#endif /* CONFIG_PPC_BOOK3E */
+system_call: /* label this so stack traces look sane */
/* We do need to set SOFTE in the stack frame or the return
* from interrupt will be painful
*/
@@ -152,11 +153,11 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR)
CURRENT_THREAD_INFO(r11, r1)
ld r10,TI_FLAGS(r11)
andi. r11,r10,_TIF_SYSCALL_DOTRACE
- bne syscall_dotrace /* does not return */
+ bne .Lsyscall_dotrace /* does not return */
cmpldi 0,r0,NR_syscalls
- bge- syscall_enosys
+ bge- .Lsyscall_enosys
-system_call: /* label this so stack traces look sane */
+.Lsyscall:
/*
* Need to vector to 32 Bit or default sys_call_table here,
* based on caller's run-mode / personality.
@@ -185,8 +186,20 @@ system_call: /* label this so stack traces look sane */
#ifdef CONFIG_PPC_BOOK3S
/* No MSR:RI on BookE */
andi. r10,r8,MSR_RI
- beq- unrecov_restore
+ beq- .Lunrecov_restore
#endif
+
+/*
+ * This is a few instructions into the actual syscall exit path (which actually
+ * starts at .Lsyscall_exit) to cater to kprobe blacklisting and to reduce the
+ * number of visible symbols for profiling purposes.
+ *
+ * We can probe from system_call until this point as MSR_RI is set. But once it
+ * is cleared below, we won't be able to take a trap.
+ *
+ * This is blacklisted from kprobes further below with _ASM_NOKPROBE_SYMBOL().
+ */
+system_call_exit:
/*
* Disable interrupts so current_thread_info()->flags can't change,
* and so that we don't get interrupted after loading SRR0/1.
@@ -208,7 +221,7 @@ system_call: /* label this so stack traces look sane */
ld r9,TI_FLAGS(r12)
li r11,-MAX_ERRNO
andi. r0,r9,(_TIF_SYSCALL_DOTRACE|_TIF_SINGLESTEP|_TIF_USER_WORK_MASK|_TIF_PERSYSCALL_MASK)
- bne- syscall_exit_work
+ bne- .Lsyscall_exit_work
andi. r0,r8,MSR_FP
beq 2f
@@ -232,7 +245,7 @@ system_call: /* label this so stack traces look sane */
3: cmpld r3,r11
ld r5,_CCR(r1)
- bge- syscall_error
+ bge- .Lsyscall_error
.Lsyscall_error_cont:
ld r7,_NIP(r1)
BEGIN_FTR_SECTION
@@ -258,14 +271,14 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
RFI
b . /* prevent speculative execution */
-syscall_error:
+.Lsyscall_error:
oris r5,r5,0x1000 /* Set SO bit in CR */
neg r3,r3
std r5,_CCR(r1)
b .Lsyscall_error_cont
-
+
/* Traced system call support */
-syscall_dotrace:
+.Lsyscall_dotrace:
bl save_nvgprs
addi r3,r1,STACK_FRAME_OVERHEAD
bl do_syscall_trace_enter
@@ -286,23 +299,23 @@ syscall_dotrace:
ld r7,GPR7(r1)
ld r8,GPR8(r1)
- /* Repopulate r9 and r10 for the system_call path */
+ /* Repopulate r9 and r10 for the syscall path */
addi r9,r1,STACK_FRAME_OVERHEAD
CURRENT_THREAD_INFO(r10, r1)
ld r10,TI_FLAGS(r10)
cmpldi r0,NR_syscalls
- blt+ system_call
+ blt+ .Lsyscall
/* Return code is already in r3 thanks to do_syscall_trace_enter() */
b .Lsyscall_exit
-syscall_enosys:
+.Lsyscall_enosys:
li r3,-ENOSYS
b .Lsyscall_exit
-syscall_exit_work:
+.Lsyscall_exit_work:
#ifdef CONFIG_PPC_BOOK3S
li r10,MSR_RI
mtmsrd r10,1 /* Restore RI */
@@ -362,7 +375,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
b ret_from_except
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
-tabort_syscall:
+.Ltabort_syscall:
/* Firstly we need to enable TM in the kernel */
mfmsr r10
li r9, 1
@@ -388,6 +401,8 @@ tabort_syscall:
rfid
b . /* prevent speculative execution */
#endif
+_ASM_NOKPROBE_SYMBOL(system_call_common);
+_ASM_NOKPROBE_SYMBOL(system_call_exit);
/* Save non-volatile GPRs, if not already saved. */
_GLOBAL(save_nvgprs)
@@ -398,6 +413,7 @@ _GLOBAL(save_nvgprs)
clrrdi r0,r11,1
std r0,_TRAP(r1)
blr
+_ASM_NOKPROBE_SYMBOL(save_nvgprs);
/*
@@ -488,33 +504,30 @@ _GLOBAL(_switch)
std r23,_CCR(r1)
std r1,KSP(r3) /* Set old stack pointer */
-#ifdef CONFIG_SMP
- /* We need a sync somewhere here to make sure that if the
- * previous task gets rescheduled on another CPU, it sees all
- * stores it has performed on this one.
+ /*
+ * On SMP kernels, care must be taken because a task may be
+ * scheduled off CPUx and on to CPUy. Memory ordering must be
+ * considered.
+ *
+ * Cacheable stores on CPUx will be visible when the task is
+ * scheduled on CPUy by virtue of the core scheduler barriers
+ * (see "Notes on Program-Order guarantees on SMP systems." in
+ * kernel/sched/core.c).
+ *
+ * Uncacheable stores in the case of involuntary preemption must
+ * be taken care of. The smp_mb__before_spin_lock() in __schedule()
+ * is implemented as hwsync on powerpc, which orders MMIO too. So
+ * long as there is an hwsync in the context switch path, it will
+ * be executed on the source CPU after the task has performed
+ * all MMIO ops on that CPU, and on the destination CPU before the
+ * task performs any MMIO ops there.
*/
- sync
-#endif /* CONFIG_SMP */
/*
- * If we optimise away the clear of the reservation in system
- * calls because we know the CPU tracks the address of the
- * reservation, then we need to clear it here to cover the
- * case that the kernel context switch path has no larx
- * instructions.
+ * The kernel context switch path must contain a spin_lock,
+ * which contains larx/stcx, which will clear any reservation
+ * of the task being switched.
*/
-BEGIN_FTR_SECTION
- ldarx r6,0,r1
-END_FTR_SECTION_IFSET(CPU_FTR_STCX_CHECKS_ADDRESS)
-
-BEGIN_FTR_SECTION
-/*
- * A cp_abort (copy paste abort) here ensures that when context switching, a
- * copy from one process can't leak into the paste of another.
- */
- PPC_CP_ABORT
-END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
-
#ifdef CONFIG_PPC_BOOK3S
/* Cancel all explict user streams as they will have no use after context
* switch and will stop the HW from creating streams itself
@@ -583,6 +596,14 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEGMENT)
top of the kernel stack. */
addi r7,r7,THREAD_SIZE-SWITCH_FRAME_SIZE
+ /*
+ * PMU interrupts in radix may come in here. They will use r1, not
+ * PACAKSAVE, so this stack switch will not cause a problem. They
+ * will store to the process stack, which may then be migrated to
+ * another CPU. However the rq lock release on this CPU paired with
+ * the rq lock acquire on the new CPU before the stack becomes
+ * active on the new CPU, will order those stores.
+ */
mr r1,r8 /* start using new stack pointer */
std r7,PACAKSAVE(r13)
@@ -763,11 +784,11 @@ restore:
ld r5,SOFTE(r1)
lbz r6,PACASOFTIRQEN(r13)
cmpwi cr0,r5,0
- beq restore_irq_off
+ beq .Lrestore_irq_off
/* We are enabling, were we already enabled ? Yes, just return */
cmpwi cr0,r6,1
- beq cr0,do_restore
+ beq cr0,.Ldo_restore
/*
* We are about to soft-enable interrupts (we are hard disabled
@@ -776,14 +797,14 @@ restore:
*/
lbz r0,PACAIRQHAPPENED(r13)
cmpwi cr0,r0,0
- bne- restore_check_irq_replay
+ bne- .Lrestore_check_irq_replay
/*
* Get here when nothing happened while soft-disabled, just
* soft-enable and move-on. We will hard-enable as a side
* effect of rfi
*/
-restore_no_replay:
+.Lrestore_no_replay:
TRACE_ENABLE_INTS
li r0,1
stb r0,PACASOFTIRQEN(r13);
@@ -791,7 +812,7 @@ restore_no_replay:
/*
* Final return path. BookE is handled in a different file
*/
-do_restore:
+.Ldo_restore:
#ifdef CONFIG_PPC_BOOK3E
b exception_return_book3e
#else
@@ -825,7 +846,7 @@ fast_exception_return:
REST_8GPRS(5, r1)
andi. r0,r3,MSR_RI
- beq- unrecov_restore
+ beq- .Lunrecov_restore
/* Load PPR from thread struct before we clear MSR:RI */
BEGIN_FTR_SECTION
@@ -883,7 +904,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
* make sure that in this case, we also clear PACA_IRQ_HARD_DIS
* or that bit can get out of sync and bad things will happen
*/
-restore_irq_off:
+.Lrestore_irq_off:
ld r3,_MSR(r1)
lbz r7,PACAIRQHAPPENED(r13)
andi. r0,r3,MSR_EE
@@ -893,13 +914,13 @@ restore_irq_off:
1: li r0,0
stb r0,PACASOFTIRQEN(r13);
TRACE_DISABLE_INTS
- b do_restore
+ b .Ldo_restore
/*
* Something did happen, check if a re-emit is needed
* (this also clears paca->irq_happened)
*/
-restore_check_irq_replay:
+.Lrestore_check_irq_replay:
/* XXX: We could implement a fast path here where we check
* for irq_happened being just 0x01, in which case we can
* clear it and return. That means that we would potentially
@@ -909,7 +930,7 @@ restore_check_irq_replay:
*/
bl __check_irq_replay
cmpwi cr0,r3,0
- beq restore_no_replay
+ beq .Lrestore_no_replay
/*
* We need to re-emit an interrupt. We do so by re-using our
@@ -945,23 +966,26 @@ restore_check_irq_replay:
#ifdef CONFIG_PPC_BOOK3E
cmpwi cr0,r3,0x280
#else
- BEGIN_FTR_SECTION
- cmpwi cr0,r3,0xe80
- FTR_SECTION_ELSE
- cmpwi cr0,r3,0xa00
- ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE)
+ cmpwi cr0,r3,0xa00
#endif /* CONFIG_PPC_BOOK3E */
bne 1f
addi r3,r1,STACK_FRAME_OVERHEAD;
bl doorbell_exception
- b ret_from_except
#endif /* CONFIG_PPC_DOORBELL */
1: b ret_from_except /* What else to do here ? */
-unrecov_restore:
+.Lunrecov_restore:
addi r3,r1,STACK_FRAME_OVERHEAD
bl unrecoverable_exception
- b unrecov_restore
+ b .Lunrecov_restore
+
+_ASM_NOKPROBE_SYMBOL(ret_from_except);
+_ASM_NOKPROBE_SYMBOL(ret_from_except_lite);
+_ASM_NOKPROBE_SYMBOL(resume_kernel);
+_ASM_NOKPROBE_SYMBOL(fast_exc_return_irq);
+_ASM_NOKPROBE_SYMBOL(restore);
+_ASM_NOKPROBE_SYMBOL(fast_exception_return);
+
#ifdef CONFIG_PPC_RTAS
/*
@@ -1038,6 +1062,8 @@ _GLOBAL(enter_rtas)
rldicr r9,r9,MSR_SF_LG,(63-MSR_SF_LG)
ori r9,r9,MSR_IR|MSR_DR|MSR_FE0|MSR_FE1|MSR_FP|MSR_RI|MSR_LE
andc r6,r0,r9
+
+__enter_rtas:
sync /* disable interrupts so SRR0/1 */
mtmsrd r0 /* don't get trashed */
@@ -1074,9 +1100,11 @@ rtas_return_loc:
mtspr SPRN_SRR1,r4
rfid
b . /* prevent speculative execution */
+_ASM_NOKPROBE_SYMBOL(__enter_rtas)
+_ASM_NOKPROBE_SYMBOL(rtas_return_loc)
.align 3
-1: .llong rtas_restore_regs
+1: .8byte rtas_restore_regs
rtas_restore_regs:
/* relocation is on at this point */
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index b886795060fd..b82586c53560 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -99,7 +99,11 @@ EXC_VIRT_NONE(0x4000, 0x100)
#ifdef CONFIG_PPC_P7_NAP
/*
* If running native on arch 2.06 or later, check if we are waking up
- * from nap/sleep/winkle, and branch to idle handler.
+ * from nap/sleep/winkle, and branch to idle handler. This tests SRR1
+ * bits 46:47. A non-0 value indicates that we are coming from a power
+ * saving state. The idle wakeup handler initially runs in real mode,
+ * but we branch to the 0xc000... address so we can turn on relocation
+ * with mtmsr.
*/
#define IDLETEST(n) \
BEGIN_FTR_SECTION ; \
@@ -107,7 +111,7 @@ EXC_VIRT_NONE(0x4000, 0x100)
rlwinm. r10,r10,47-31,30,31 ; \
beq- 1f ; \
cmpwi cr3,r10,2 ; \
- BRANCH_TO_COMMON(r10, system_reset_idle_common) ; \
+ BRANCH_TO_C000(r10, system_reset_idle_common) ; \
1: \
END_FTR_SECTION_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206)
#else
@@ -128,6 +132,7 @@ EXC_VIRT_NONE(0x4100, 0x100)
#ifdef CONFIG_PPC_P7_NAP
EXC_COMMON_BEGIN(system_reset_idle_common)
+ mfspr r12,SPRN_SRR1
b pnv_powersave_wakeup
#endif
@@ -507,46 +512,22 @@ EXC_REAL_BEGIN(data_access_slb, 0x380, 0x80)
SET_SCRATCH0(r13)
EXCEPTION_PROLOG_0(PACA_EXSLB)
EXCEPTION_PROLOG_1(PACA_EXSLB, KVMTEST_PR, 0x380)
- std r3,PACA_EXSLB+EX_R3(r13)
+ mr r12,r3 /* save r3 */
mfspr r3,SPRN_DAR
- mfspr r12,SPRN_SRR1
+ mfspr r11,SPRN_SRR1
crset 4*cr6+eq
-#ifndef CONFIG_RELOCATABLE
- b slb_miss_realmode
-#else
- /*
- * We can't just use a direct branch to slb_miss_realmode
- * because the distance from here to there depends on where
- * the kernel ends up being put.
- */
- mfctr r11
- LOAD_HANDLER(r10, slb_miss_realmode)
- mtctr r10
- bctr
-#endif
+ BRANCH_TO_COMMON(r10, slb_miss_common)
EXC_REAL_END(data_access_slb, 0x380, 0x80)
EXC_VIRT_BEGIN(data_access_slb, 0x4380, 0x80)
SET_SCRATCH0(r13)
EXCEPTION_PROLOG_0(PACA_EXSLB)
EXCEPTION_PROLOG_1(PACA_EXSLB, NOTEST, 0x380)
- std r3,PACA_EXSLB+EX_R3(r13)
+ mr r12,r3 /* save r3 */
mfspr r3,SPRN_DAR
- mfspr r12,SPRN_SRR1
+ mfspr r11,SPRN_SRR1
crset 4*cr6+eq
-#ifndef CONFIG_RELOCATABLE
- b slb_miss_realmode
-#else
- /*
- * We can't just use a direct branch to slb_miss_realmode
- * because the distance from here to there depends on where
- * the kernel ends up being put.
- */
- mfctr r11
- LOAD_HANDLER(r10, slb_miss_realmode)
- mtctr r10
- bctr
-#endif
+ BRANCH_TO_COMMON(r10, slb_miss_common)
EXC_VIRT_END(data_access_slb, 0x4380, 0x80)
TRAMP_KVM_SKIP(PACA_EXSLB, 0x380)
@@ -560,7 +541,7 @@ EXC_COMMON_BEGIN(instruction_access_common)
RECONCILE_IRQ_STATE(r10, r11)
ld r12,_MSR(r1)
ld r3,_NIP(r1)
- andis. r4,r12,0x5820
+ andis. r4,r12,DSISR_BAD_FAULT_64S@h
li r5,0x400
std r3,_DAR(r1)
std r4,_DSISR(r1)
@@ -575,88 +556,82 @@ EXC_REAL_BEGIN(instruction_access_slb, 0x480, 0x80)
SET_SCRATCH0(r13)
EXCEPTION_PROLOG_0(PACA_EXSLB)
EXCEPTION_PROLOG_1(PACA_EXSLB, KVMTEST_PR, 0x480)
- std r3,PACA_EXSLB+EX_R3(r13)
+ mr r12,r3 /* save r3 */
mfspr r3,SPRN_SRR0 /* SRR0 is faulting address */
- mfspr r12,SPRN_SRR1
+ mfspr r11,SPRN_SRR1
crclr 4*cr6+eq
-#ifndef CONFIG_RELOCATABLE
- b slb_miss_realmode
-#else
- mfctr r11
- LOAD_HANDLER(r10, slb_miss_realmode)
- mtctr r10
- bctr
-#endif
+ BRANCH_TO_COMMON(r10, slb_miss_common)
EXC_REAL_END(instruction_access_slb, 0x480, 0x80)
EXC_VIRT_BEGIN(instruction_access_slb, 0x4480, 0x80)
SET_SCRATCH0(r13)
EXCEPTION_PROLOG_0(PACA_EXSLB)
EXCEPTION_PROLOG_1(PACA_EXSLB, NOTEST, 0x480)
- std r3,PACA_EXSLB+EX_R3(r13)
+ mr r12,r3 /* save r3 */
mfspr r3,SPRN_SRR0 /* SRR0 is faulting address */
- mfspr r12,SPRN_SRR1
+ mfspr r11,SPRN_SRR1
crclr 4*cr6+eq
-#ifndef CONFIG_RELOCATABLE
- b slb_miss_realmode
-#else
- mfctr r11
- LOAD_HANDLER(r10, slb_miss_realmode)
- mtctr r10
- bctr
-#endif
+ BRANCH_TO_COMMON(r10, slb_miss_common)
EXC_VIRT_END(instruction_access_slb, 0x4480, 0x80)
TRAMP_KVM(PACA_EXSLB, 0x480)
-/* This handler is used by both 0x380 and 0x480 slb miss interrupts */
-EXC_COMMON_BEGIN(slb_miss_realmode)
+/*
+ * This handler is used by the 0x380 and 0x480 SLB miss interrupts, as well as
+ * the virtual mode 0x4380 and 0x4480 interrupts if AIL is enabled.
+ */
+EXC_COMMON_BEGIN(slb_miss_common)
/*
* r13 points to the PACA, r9 contains the saved CR,
- * r12 contain the saved SRR1, SRR0 is still ready for return
+ * r12 contains the saved r3,
+ * r11 contain the saved SRR1, SRR0 is still ready for return
* r3 has the faulting address
* r9 - r13 are saved in paca->exslb.
- * r3 is saved in paca->slb_r3
* cr6.eq is set for a D-SLB miss, clear for a I-SLB miss
* We assume we aren't going to take any exceptions during this
* procedure.
*/
mflr r10
-#ifdef CONFIG_RELOCATABLE
- mtctr r11
-#endif
-
stw r9,PACA_EXSLB+EX_CCR(r13) /* save CR in exc. frame */
std r10,PACA_EXSLB+EX_LR(r13) /* save LR */
- std r3,PACA_EXSLB+EX_DAR(r13)
+
+ /*
+ * Test MSR_RI before calling slb_allocate_realmode, because the
+ * MSR in r11 gets clobbered. However we still want to allocate
+ * SLB in case MSR_RI=0, to minimise the risk of getting stuck in
+ * recursive SLB faults. So use cr5 for this, which is preserved.
+ */
+ andi. r11,r11,MSR_RI /* check for unrecoverable exception */
+ cmpdi cr5,r11,MSR_RI
crset 4*cr0+eq
#ifdef CONFIG_PPC_STD_MMU_64
BEGIN_MMU_FTR_SECTION
- bl slb_allocate_realmode
+ bl slb_allocate
END_MMU_FTR_SECTION_IFCLR(MMU_FTR_TYPE_RADIX)
#endif
ld r10,PACA_EXSLB+EX_LR(r13)
- ld r3,PACA_EXSLB+EX_R3(r13)
lwz r9,PACA_EXSLB+EX_CCR(r13) /* get saved CR */
mtlr r10
- beq 8f /* if bad address, make full stack frame */
+ beq- 8f /* if bad address, make full stack frame */
- andi. r10,r12,MSR_RI /* check for unrecoverable exception */
- beq- 2f
+ bne- cr5,2f /* if unrecoverable exception, oops */
/* All done -- return from exception. */
.machine push
.machine "power4"
mtcrf 0x80,r9
+ mtcrf 0x04,r9 /* MSR[RI] indication is in cr5 */
mtcrf 0x02,r9 /* I/D indication is in cr6 */
mtcrf 0x01,r9 /* slb_allocate uses cr0 and cr7 */
.machine pop
+ RESTORE_CTR(r9, PACA_EXSLB)
RESTORE_PPR_PACA(PACA_EXSLB, r9)
+ mr r3,r12
ld r9,PACA_EXSLB+EX_R9(r13)
ld r10,PACA_EXSLB+EX_R10(r13)
ld r11,PACA_EXSLB+EX_R11(r13)
@@ -665,7 +640,10 @@ END_MMU_FTR_SECTION_IFCLR(MMU_FTR_TYPE_RADIX)
rfid
b . /* prevent speculative execution */
-2: mfspr r11,SPRN_SRR0
+2: std r3,PACA_EXSLB+EX_DAR(r13)
+ mr r3,r12
+ mfspr r11,SPRN_SRR0
+ mfspr r12,SPRN_SRR1
LOAD_HANDLER(r10,unrecov_slb)
mtspr SPRN_SRR0,r10
ld r10,PACAKMSR(r13)
@@ -673,7 +651,10 @@ END_MMU_FTR_SECTION_IFCLR(MMU_FTR_TYPE_RADIX)
rfid
b .
-8: mfspr r11,SPRN_SRR0
+8: std r3,PACA_EXSLB+EX_DAR(r13)
+ mr r3,r12
+ mfspr r11,SPRN_SRR0
+ mfspr r12,SPRN_SRR1
LOAD_HANDLER(r10,bad_addr_slb)
mtspr SPRN_SRR0,r10
ld r10,PACAKMSR(r13)
@@ -753,7 +734,29 @@ EXC_REAL(program_check, 0x700, 0x100)
EXC_VIRT(program_check, 0x4700, 0x100, 0x700)
TRAMP_KVM(PACA_EXGEN, 0x700)
EXC_COMMON_BEGIN(program_check_common)
- EXCEPTION_PROLOG_COMMON(0x700, PACA_EXGEN)
+ /*
+ * It's possible to receive a TM Bad Thing type program check with
+ * userspace register values (in particular r1), but with SRR1 reporting
+ * that we came from the kernel. Normally that would confuse the bad
+ * stack logic, and we would report a bad kernel stack pointer. Instead
+ * we switch to the emergency stack if we're taking a TM Bad Thing from
+ * the kernel.
+ */
+ li r10,MSR_PR /* Build a mask of MSR_PR .. */
+ oris r10,r10,0x200000@h /* .. and SRR1_PROGTM */
+ and r10,r10,r12 /* Mask SRR1 with that. */
+ srdi r10,r10,8 /* Shift it so we can compare */
+ cmpldi r10,(0x200000 >> 8) /* .. with an immediate. */
+ bne 1f /* If != go to normal path. */
+
+ /* SRR1 had PR=0 and SRR1_PROGTM=1, so use the emergency stack */
+ andi. r10,r12,MSR_PR; /* Set CR0 correctly for label */
+ /* 3 in EXCEPTION_PROLOG_COMMON */
+ mr r10,r1 /* Save r1 */
+ ld r1,PACAEMERGSP(r13) /* Use emergency stack */
+ subi r1,r1,INT_FRAME_SIZE /* alloc stack frame */
+ b 3f /* Jump into the macro !! */
+1: EXCEPTION_PROLOG_COMMON(0x700, PACA_EXGEN)
bl save_nvgprs
RECONCILE_IRQ_STATE(r10, r11)
addi r3,r1,STACK_FRAME_OVERHEAD
@@ -821,46 +824,81 @@ EXC_VIRT(trap_0b, 0x4b00, 0x100, 0xb00)
TRAMP_KVM(PACA_EXGEN, 0xb00)
EXC_COMMON(trap_0b_common, 0xb00, unknown_exception)
+/*
+ * system call / hypercall (0xc00, 0x4c00)
+ *
+ * The system call exception is invoked with "sc 0" and does not alter HV bit.
+ * There is support for kernel code to invoke system calls but there are no
+ * in-tree users.
+ *
+ * The hypercall is invoked with "sc 1" and sets HV=1.
+ *
+ * In HPT, sc 1 always goes to 0xc00 real mode. In RADIX, sc 1 can go to
+ * 0x4c00 virtual mode.
+ *
+ * Call convention:
+ *
+ * syscall register convention is in Documentation/powerpc/syscall64-abi.txt
+ *
+ * For hypercalls, the register convention is as follows:
+ * r0 volatile
+ * r1-2 nonvolatile
+ * r3 volatile parameter and return value for status
+ * r4-r10 volatile input and output value
+ * r11 volatile hypercall number and output value
+ * r12 volatile input and output value
+ * r13-r31 nonvolatile
+ * LR nonvolatile
+ * CTR volatile
+ * XER volatile
+ * CR0-1 CR5-7 volatile
+ * CR2-4 nonvolatile
+ * Other registers nonvolatile
+ *
+ * The intersection of volatile registers that don't contain possible
+ * inputs is: cr0, xer, ctr. We may use these as scratch regs upon entry
+ * without saving, though xer is not a good idea to use, as hardware may
+ * interpret some bits so it may be costly to change them.
+ */
#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
- /*
- * If CONFIG_KVM_BOOK3S_64_HANDLER is set, save the PPR (on systems
- * that support it) before changing to HMT_MEDIUM. That allows the KVM
- * code to save that value into the guest state (it is the guest's PPR
- * value). Otherwise just change to HMT_MEDIUM as userspace has
- * already saved the PPR.
- */
+ /*
+ * There is a little bit of juggling to get syscall and hcall
+ * working well. Save r13 in ctr to avoid using SPRG scratch
+ * register.
+ *
+ * Userspace syscalls have already saved the PPR, hcalls must save
+ * it before setting HMT_MEDIUM.
+ */
#define SYSCALL_KVMTEST \
- SET_SCRATCH0(r13); \
+ mtctr r13; \
GET_PACA(r13); \
- std r9,PACA_EXGEN+EX_R9(r13); \
- OPT_GET_SPR(r9, SPRN_PPR, CPU_FTR_HAS_PPR); \
- HMT_MEDIUM; \
std r10,PACA_EXGEN+EX_R10(r13); \
- OPT_SAVE_REG_TO_PACA(PACA_EXGEN+EX_PPR, r9, CPU_FTR_HAS_PPR); \
- mfcr r9; \
- KVMTEST_PR(0xc00); \
- GET_SCRATCH0(r13)
+ KVMTEST_PR(0xc00); /* uses r10, branch to do_kvm_0xc00_system_call */ \
+ HMT_MEDIUM; \
+ mfctr r9;
#else
#define SYSCALL_KVMTEST \
- HMT_MEDIUM
+ HMT_MEDIUM; \
+ mr r9,r13; \
+ GET_PACA(r13);
#endif
#define LOAD_SYSCALL_HANDLER(reg) \
__LOAD_HANDLER(reg, system_call_common)
-/* Syscall routine is used twice, in reloc-off and reloc-on paths */
-#define SYSCALL_PSERIES_1 \
+#define SYSCALL_FASTENDIAN_TEST \
BEGIN_FTR_SECTION \
cmpdi r0,0x1ebe ; \
beq- 1f ; \
END_FTR_SECTION_IFSET(CPU_FTR_REAL_LE) \
- mr r9,r13 ; \
- GET_PACA(r13) ; \
- mfspr r11,SPRN_SRR0 ; \
-0:
-#define SYSCALL_PSERIES_2_RFID \
+/*
+ * After SYSCALL_KVMTEST, we reach here with PACA in r13, r13 in r9,
+ * and HMT_MEDIUM.
+ */
+#define SYSCALL_REAL \
+ mfspr r11,SPRN_SRR0 ; \
mfspr r12,SPRN_SRR1 ; \
LOAD_SYSCALL_HANDLER(r10) ; \
mtspr SPRN_SRR0,r10 ; \
@@ -869,11 +907,12 @@ END_FTR_SECTION_IFSET(CPU_FTR_REAL_LE) \
rfid ; \
b . ; /* prevent speculative execution */
-#define SYSCALL_PSERIES_3 \
+#define SYSCALL_FASTENDIAN \
/* Fast LE/BE switch system call */ \
1: mfspr r12,SPRN_SRR1 ; \
xori r12,r12,MSR_LE ; \
mtspr SPRN_SRR1,r12 ; \
+ mr r13,r9 ; \
rfid ; /* return to userspace */ \
b . ; /* prevent speculative execution */
@@ -882,16 +921,18 @@ END_FTR_SECTION_IFSET(CPU_FTR_REAL_LE) \
* We can't branch directly so we do it via the CTR which
* is volatile across system calls.
*/
-#define SYSCALL_PSERIES_2_DIRECT \
- LOAD_SYSCALL_HANDLER(r12) ; \
- mtctr r12 ; \
+#define SYSCALL_VIRT \
+ LOAD_SYSCALL_HANDLER(r10) ; \
+ mtctr r10 ; \
+ mfspr r11,SPRN_SRR0 ; \
mfspr r12,SPRN_SRR1 ; \
li r10,MSR_RI ; \
mtmsrd r10,1 ; \
bctr ;
#else
/* We can branch directly */
-#define SYSCALL_PSERIES_2_DIRECT \
+#define SYSCALL_VIRT \
+ mfspr r11,SPRN_SRR0 ; \
mfspr r12,SPRN_SRR1 ; \
li r10,MSR_RI ; \
mtmsrd r10,1 ; /* Set RI (EE=0) */ \
@@ -899,20 +940,42 @@ END_FTR_SECTION_IFSET(CPU_FTR_REAL_LE) \
#endif
EXC_REAL_BEGIN(system_call, 0xc00, 0x100)
- SYSCALL_KVMTEST
- SYSCALL_PSERIES_1
- SYSCALL_PSERIES_2_RFID
- SYSCALL_PSERIES_3
+ SYSCALL_KVMTEST /* loads PACA into r13, and saves r13 to r9 */
+ SYSCALL_FASTENDIAN_TEST
+ SYSCALL_REAL
+ SYSCALL_FASTENDIAN
EXC_REAL_END(system_call, 0xc00, 0x100)
EXC_VIRT_BEGIN(system_call, 0x4c00, 0x100)
- SYSCALL_KVMTEST
- SYSCALL_PSERIES_1
- SYSCALL_PSERIES_2_DIRECT
- SYSCALL_PSERIES_3
+ SYSCALL_KVMTEST /* loads PACA into r13, and saves r13 to r9 */
+ SYSCALL_FASTENDIAN_TEST
+ SYSCALL_VIRT
+ SYSCALL_FASTENDIAN
EXC_VIRT_END(system_call, 0x4c00, 0x100)
-TRAMP_KVM(PACA_EXGEN, 0xc00)
+#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
+ /*
+ * This is a hcall, so register convention is as above, with these
+ * differences:
+ * r13 = PACA
+ * ctr = orig r13
+ * orig r10 saved in PACA
+ */
+TRAMP_KVM_BEGIN(do_kvm_0xc00)
+ /*
+ * Save the PPR (on systems that support it) before changing to
+ * HMT_MEDIUM. That allows the KVM code to save that value into the
+ * guest state (it is the guest's PPR value).
+ */
+ OPT_GET_SPR(r10, SPRN_PPR, CPU_FTR_HAS_PPR)
+ HMT_MEDIUM
+ OPT_SAVE_REG_TO_PACA(PACA_EXGEN+EX_PPR, r10, CPU_FTR_HAS_PPR)
+ mfctr r10
+ SET_SCRATCH0(r10)
+ std r9,PACA_EXGEN+EX_R9(r13)
+ mfcr r9
+ KVM_HANDLER(PACA_EXGEN, EXC_STD, 0xc00)
+#endif
EXC_REAL(single_step, 0xd00, 0x100)
@@ -1273,6 +1336,39 @@ EXC_REAL_NONE(0x1800, 0x100)
EXC_VIRT_NONE(0x5800, 0x100)
#endif
+#ifdef CONFIG_PPC_WATCHDOG
+
+#define MASKED_DEC_HANDLER_LABEL 3f
+
+#define MASKED_DEC_HANDLER(_H) \
+3: /* soft-nmi */ \
+ std r12,PACA_EXGEN+EX_R12(r13); \
+ GET_SCRATCH0(r10); \
+ std r10,PACA_EXGEN+EX_R13(r13); \
+ EXCEPTION_PROLOG_PSERIES_1(soft_nmi_common, _H)
+
+/*
+ * Branch to soft_nmi_interrupt using the emergency stack. The emergency
+ * stack is one that is usable by maskable interrupts so long as MSR_EE
+ * remains off. It is used for recovery when something has corrupted the
+ * normal kernel stack, for example. The "soft NMI" must not use the process
+ * stack because we want irq disabled sections to avoid touching the stack
+ * at all (other than PMU interrupts), so use the emergency stack for this,
+ * and run it entirely with interrupts hard disabled.
+ */
+EXC_COMMON_BEGIN(soft_nmi_common)
+ mr r10,r1
+ ld r1,PACAEMERGSP(r13)
+ subi r1,r1,INT_FRAME_SIZE
+ EXCEPTION_COMMON_NORET_STACK(PACA_EXGEN, 0x900,
+ system_reset, soft_nmi_interrupt,
+ ADD_NVGPRS;ADD_RECONCILE)
+ b ret_from_except
+
+#else /* CONFIG_PPC_WATCHDOG */
+#define MASKED_DEC_HANDLER_LABEL 2f /* normal return */
+#define MASKED_DEC_HANDLER(_H)
+#endif /* CONFIG_PPC_WATCHDOG */
/*
* An interrupt came in while soft-disabled. We set paca->irq_happened, then:
@@ -1295,22 +1391,20 @@ masked_##_H##interrupt: \
lis r10,0x7fff; \
ori r10,r10,0xffff; \
mtspr SPRN_DEC,r10; \
- b 2f; \
-1: cmpwi r10,PACA_IRQ_DBELL; \
- beq 2f; \
- cmpwi r10,PACA_IRQ_HMI; \
- beq 2f; \
+ b MASKED_DEC_HANDLER_LABEL; \
+1: andi. r10,r10,(PACA_IRQ_DBELL|PACA_IRQ_HMI); \
+ bne 2f; \
mfspr r10,SPRN_##_H##SRR1; \
- rldicl r10,r10,48,1; /* clear MSR_EE */ \
- rotldi r10,r10,16; \
+ xori r10,r10,MSR_EE; /* clear MSR_EE */ \
mtspr SPRN_##_H##SRR1,r10; \
2: mtcrf 0x80,r9; \
ld r9,PACA_EXGEN+EX_R9(r13); \
ld r10,PACA_EXGEN+EX_R10(r13); \
ld r11,PACA_EXGEN+EX_R11(r13); \
- GET_SCRATCH0(r13); \
+ /* returns to kernel where r13 must be set up, so don't restore it */ \
##_H##rfid; \
- b .
+ b .; \
+ MASKED_DEC_HANDLER(_H)
/*
* Real mode exceptions actually use this too, but alternate
@@ -1410,8 +1504,10 @@ USE_TEXT_SECTION()
*/
.balign IFETCH_ALIGN_BYTES
do_hash_page:
-#ifdef CONFIG_PPC_STD_MMU_64
- andis. r0,r4,0xa450 /* weird error? */
+ #ifdef CONFIG_PPC_STD_MMU_64
+ lis r0,DSISR_BAD_FAULT_64S@h
+ ori r0,r0,DSISR_BAD_FAULT_64S@l
+ and. r0,r4,r0 /* weird error? */
bne- handle_page_fault /* if not, try to insert a HPTE */
CURRENT_THREAD_INFO(r11, r1)
lwz r0,TI_PREEMPT(r11) /* If we're in an "NMI" */
@@ -1553,6 +1649,26 @@ END_FTR_SECTION_IFSET(CPU_FTR_CFAR)
1: addi r3,r1,STACK_FRAME_OVERHEAD
bl kernel_bad_stack
b 1b
+_ASM_NOKPROBE_SYMBOL(bad_stack);
+
+/*
+ * When doorbell is triggered from system reset wakeup, the message is
+ * not cleared, so it would fire again when EE is enabled.
+ *
+ * When coming from local_irq_enable, there may be the same problem if
+ * we were hard disabled.
+ *
+ * Execute msgclr to clear pending exceptions before handling it.
+ */
+h_doorbell_common_msgclr:
+ LOAD_REG_IMMEDIATE(r3, PPC_DBELL_MSGTYPE << (63-36))
+ PPC_MSGCLR(3)
+ b h_doorbell_common
+
+doorbell_super_common_msgclr:
+ LOAD_REG_IMMEDIATE(r3, PPC_DBELL_MSGTYPE << (63-36))
+ PPC_MSGCLRP(3)
+ b doorbell_super_common
/*
* Called from arch_local_irq_enable when an interrupt needs
@@ -1563,6 +1679,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_CFAR)
* Note: While MSR:EE is off, we need to make sure that _MSR
* in the generated frame has EE set to 1 or the exception
* handler will not properly re-enable them.
+ *
+ * Note that we don't specify LR as the NIP (return address) for
+ * the interrupt because that would unbalance the return branch
+ * predictor.
*/
_GLOBAL(__replay_interrupt)
/* We are going to jump to the exception common code which
@@ -1570,22 +1690,27 @@ _GLOBAL(__replay_interrupt)
* we don't give a damn about, so we don't bother storing them.
*/
mfmsr r12
- mflr r11
+ LOAD_REG_ADDR(r11, replay_interrupt_return)
mfcr r9
ori r12,r12,MSR_EE
cmpwi r3,0x900
beq decrementer_common
cmpwi r3,0x500
- beq hardware_interrupt_common
BEGIN_FTR_SECTION
- cmpwi r3,0xe80
- beq h_doorbell_common
- cmpwi r3,0xea0
beq h_virt_irq_common
+FTR_SECTION_ELSE
+ beq hardware_interrupt_common
+ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_300)
+BEGIN_FTR_SECTION
+ cmpwi r3,0xa00
+ beq h_doorbell_common_msgclr
cmpwi r3,0xe60
beq hmi_exception_common
FTR_SECTION_ELSE
cmpwi r3,0xa00
- beq doorbell_super_common
+ beq doorbell_super_common_msgclr
ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE)
+replay_interrupt_return:
blr
+
+_ASM_NOKPROBE_SYMBOL(__replay_interrupt)
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
index 466569e26278..e1431800bfb9 100644
--- a/arch/powerpc/kernel/fadump.c
+++ b/arch/powerpc/kernel/fadump.c
@@ -113,11 +113,62 @@ int __init early_init_dt_scan_fw_dump(unsigned long node,
return 1;
}
+/*
+ * If fadump is registered, check if the memory provided
+ * falls within boot memory area.
+ */
+int is_fadump_boot_memory_area(u64 addr, ulong size)
+{
+ if (!fw_dump.dump_registered)
+ return 0;
+
+ return (addr + size) > RMA_START && addr <= fw_dump.boot_memory_size;
+}
+
+int should_fadump_crash(void)
+{
+ if (!fw_dump.dump_registered || !fw_dump.fadumphdr_addr)
+ return 0;
+ return 1;
+}
+
int is_fadump_active(void)
{
return fw_dump.dump_active;
}
+/*
+ * Returns 1, if there are no holes in boot memory area,
+ * 0 otherwise.
+ */
+static int is_boot_memory_area_contiguous(void)
+{
+ struct memblock_region *reg;
+ unsigned long tstart, tend;
+ unsigned long start_pfn = PHYS_PFN(RMA_START);
+ unsigned long end_pfn = PHYS_PFN(RMA_START + fw_dump.boot_memory_size);
+ unsigned int ret = 0;
+
+ for_each_memblock(memory, reg) {
+ tstart = max(start_pfn, memblock_region_memory_base_pfn(reg));
+ tend = min(end_pfn, memblock_region_memory_end_pfn(reg));
+ if (tstart < tend) {
+ /* Memory hole from start_pfn to tstart */
+ if (tstart > start_pfn)
+ break;
+
+ if (tend == end_pfn) {
+ ret = 1;
+ break;
+ }
+
+ start_pfn = tend + 1;
+ }
+ }
+
+ return ret;
+}
+
/* Print firmware assisted dump configurations for debugging purpose. */
static void fadump_show_config(void)
{
@@ -212,20 +263,46 @@ static inline unsigned long fadump_calculate_reserve_size(void)
int ret;
unsigned long long base, size;
+ if (fw_dump.reserve_bootvar)
+ pr_warn("'fadump_reserve_mem=' parameter is deprecated in favor of 'crashkernel=' parameter.\n");
+
/*
* Check if the size is specified through crashkernel= cmdline
- * option. If yes, then use that but ignore base as fadump
- * reserves memory at end of RAM.
+ * option. If yes, then use that but ignore base as fadump reserves
+ * memory at a predefined offset.
*/
ret = parse_crashkernel(boot_command_line, memblock_phys_mem_size(),
&size, &base);
if (ret == 0 && size > 0) {
+ unsigned long max_size;
+
+ if (fw_dump.reserve_bootvar)
+ pr_info("Using 'crashkernel=' parameter for memory reservation.\n");
+
fw_dump.reserve_bootvar = (unsigned long)size;
+
+ /*
+ * Adjust if the boot memory size specified is above
+ * the upper limit.
+ */
+ max_size = memblock_phys_mem_size() / MAX_BOOT_MEM_RATIO;
+ if (fw_dump.reserve_bootvar > max_size) {
+ fw_dump.reserve_bootvar = max_size;
+ pr_info("Adjusted boot memory size to %luMB\n",
+ (fw_dump.reserve_bootvar >> 20));
+ }
+
+ return fw_dump.reserve_bootvar;
+ } else if (fw_dump.reserve_bootvar) {
+ /*
+ * 'fadump_reserve_mem=' is being used to reserve memory
+ * for firmware-assisted dump.
+ */
return fw_dump.reserve_bootvar;
}
/* divide by 20 to get 5% of value */
- size = memblock_end_of_DRAM() / 20;
+ size = memblock_phys_mem_size() / 20;
/* round it down in multiples of 256 */
size = size & ~0x0FFFFFFFUL;
@@ -377,9 +454,22 @@ static int __init early_fadump_param(char *p)
}
early_param("fadump", early_fadump_param);
-static void register_fw_dump(struct fadump_mem_struct *fdm)
+/*
+ * Look for fadump_reserve_mem= cmdline option
+ * TODO: Remove references to 'fadump_reserve_mem=' parameter,
+ * the sooner 'crashkernel=' parameter is accustomed to.
+ */
+static int __init early_fadump_reserve_mem(char *p)
{
- int rc;
+ if (p)
+ fw_dump.reserve_bootvar = memparse(p, &p);
+ return 0;
+}
+early_param("fadump_reserve_mem", early_fadump_reserve_mem);
+
+static int register_fw_dump(struct fadump_mem_struct *fdm)
+{
+ int rc, err;
unsigned int wait_time;
pr_debug("Registering for firmware-assisted kernel dump...\n");
@@ -396,26 +486,38 @@ static void register_fw_dump(struct fadump_mem_struct *fdm)
} while (wait_time);
+ err = -EIO;
switch (rc) {
+ default:
+ pr_err("Failed to register. Unknown Error(%d).\n", rc);
+ break;
case -1:
printk(KERN_ERR "Failed to register firmware-assisted kernel"
" dump. Hardware Error(%d).\n", rc);
break;
case -3:
+ if (!is_boot_memory_area_contiguous())
+ pr_err("Can't have holes in boot memory area while "
+ "registering fadump\n");
+
printk(KERN_ERR "Failed to register firmware-assisted kernel"
" dump. Parameter Error(%d).\n", rc);
+ err = -EINVAL;
break;
case -9:
printk(KERN_ERR "firmware-assisted kernel dump is already "
" registered.");
fw_dump.dump_registered = 1;
+ err = -EEXIST;
break;
case 0:
printk(KERN_INFO "firmware-assisted kernel dump registration"
" is successful\n");
fw_dump.dump_registered = 1;
+ err = 0;
break;
}
+ return err;
}
void crash_fadump(struct pt_regs *regs, const char *str)
@@ -423,7 +525,7 @@ void crash_fadump(struct pt_regs *regs, const char *str)
struct fadump_crash_info_header *fdh = NULL;
int old_cpu, this_cpu;
- if (!fw_dump.dump_registered || !fw_dump.fadumphdr_addr)
+ if (!should_fadump_crash())
return;
/*
@@ -831,8 +933,19 @@ static void fadump_setup_crash_memory_ranges(void)
for_each_memblock(memory, reg) {
start = (unsigned long long)reg->base;
end = start + (unsigned long long)reg->size;
- if (start == RMA_START && end >= fw_dump.boot_memory_size)
- start = fw_dump.boot_memory_size;
+
+ /*
+ * skip the first memory chunk that is already added (RMA_START
+ * through boot_memory_size). This logic needs a relook if and
+ * when RMA_START changes to a non-zero value.
+ */
+ BUILD_BUG_ON(RMA_START != 0);
+ if (start < fw_dump.boot_memory_size) {
+ if (end > fw_dump.boot_memory_size)
+ start = fw_dump.boot_memory_size;
+ else
+ continue;
+ }
/* add this range excluding the reserved dump area. */
fadump_exclude_reserved_area(start, end);
@@ -893,8 +1006,7 @@ static int fadump_create_elfcore_headers(char *bufp)
phdr->p_paddr = fadump_relocate(paddr_vmcoreinfo_note());
phdr->p_offset = phdr->p_paddr;
- phdr->p_memsz = vmcoreinfo_max_size;
- phdr->p_filesz = vmcoreinfo_max_size;
+ phdr->p_memsz = phdr->p_filesz = VMCOREINFO_NOTE_SIZE;
/* Increment number of program headers. */
(elf->e_phnum)++;
@@ -956,7 +1068,7 @@ static unsigned long init_fadump_header(unsigned long addr)
return addr;
}
-static void register_fadump(void)
+static int register_fadump(void)
{
unsigned long addr;
void *vaddr;
@@ -966,7 +1078,7 @@ static void register_fadump(void)
* assisted dump.
*/
if (!fw_dump.reserve_dump_area_size)
- return;
+ return -ENODEV;
fadump_setup_crash_memory_ranges();
@@ -979,7 +1091,7 @@ static void register_fadump(void)
fadump_create_elfcore_headers(vaddr);
/* register the future kernel dump with firmware. */
- register_fw_dump(&fdm);
+ return register_fw_dump(&fdm);
}
static int fadump_unregister_dump(struct fadump_mem_struct *fdm)
@@ -1046,28 +1158,71 @@ void fadump_cleanup(void)
}
}
+static void fadump_free_reserved_memory(unsigned long start_pfn,
+ unsigned long end_pfn)
+{
+ unsigned long pfn;
+ unsigned long time_limit = jiffies + HZ;
+
+ pr_info("freeing reserved memory (0x%llx - 0x%llx)\n",
+ PFN_PHYS(start_pfn), PFN_PHYS(end_pfn));
+
+ for (pfn = start_pfn; pfn < end_pfn; pfn++) {
+ free_reserved_page(pfn_to_page(pfn));
+
+ if (time_after(jiffies, time_limit)) {
+ cond_resched();
+ time_limit = jiffies + HZ;
+ }
+ }
+}
+
+/*
+ * Skip memory holes and free memory that was actually reserved.
+ */
+static void fadump_release_reserved_area(unsigned long start, unsigned long end)
+{
+ struct memblock_region *reg;
+ unsigned long tstart, tend;
+ unsigned long start_pfn = PHYS_PFN(start);
+ unsigned long end_pfn = PHYS_PFN(end);
+
+ for_each_memblock(memory, reg) {
+ tstart = max(start_pfn, memblock_region_memory_base_pfn(reg));
+ tend = min(end_pfn, memblock_region_memory_end_pfn(reg));
+ if (tstart < tend) {
+ fadump_free_reserved_memory(tstart, tend);
+
+ if (tend == end_pfn)
+ break;
+
+ start_pfn = tend + 1;
+ }
+ }
+}
+
/*
* Release the memory that was reserved in early boot to preserve the memory
* contents. The released memory will be available for general use.
*/
static void fadump_release_memory(unsigned long begin, unsigned long end)
{
- unsigned long addr;
unsigned long ra_start, ra_end;
ra_start = fw_dump.reserve_dump_area_start;
ra_end = ra_start + fw_dump.reserve_dump_area_size;
- for (addr = begin; addr < end; addr += PAGE_SIZE) {
- /*
- * exclude the dump reserve area. Will reuse it for next
- * fadump registration.
- */
- if (addr <= ra_end && ((addr + PAGE_SIZE) > ra_start))
- continue;
-
- free_reserved_page(pfn_to_page(addr >> PAGE_SHIFT));
- }
+ /*
+ * exclude the dump reserve area. Will reuse it for next
+ * fadump registration.
+ */
+ if (begin < ra_end && end > ra_start) {
+ if (begin < ra_start)
+ fadump_release_reserved_area(begin, ra_start);
+ if (end > ra_end)
+ fadump_release_reserved_area(ra_end, end);
+ } else
+ fadump_release_reserved_area(begin, end);
}
static void fadump_invalidate_release_mem(void)
@@ -1161,7 +1316,6 @@ static ssize_t fadump_register_store(struct kobject *kobj,
switch (buf[0]) {
case '0':
if (fw_dump.dump_registered == 0) {
- ret = -EINVAL;
goto unlock_out;
}
/* Un-register Firmware-assisted dump */
@@ -1169,11 +1323,11 @@ static ssize_t fadump_register_store(struct kobject *kobj,
break;
case '1':
if (fw_dump.dump_registered == 1) {
- ret = -EINVAL;
+ ret = -EEXIST;
goto unlock_out;
}
/* Register Firmware-assisted dump */
- register_fadump();
+ ret = register_fadump();
break;
default:
ret = -EINVAL;
@@ -1299,6 +1453,25 @@ static void fadump_init_files(void)
return;
}
+static int fadump_panic_event(struct notifier_block *this,
+ unsigned long event, void *ptr)
+{
+ /*
+ * If firmware-assisted dump has been registered then trigger
+ * firmware-assisted dump and let firmware handle everything
+ * else. If this returns, then fadump was not registered, so
+ * go through the rest of the panic path.
+ */
+ crash_fadump(NULL, ptr);
+
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block fadump_panic_block = {
+ .notifier_call = fadump_panic_event,
+ .priority = INT_MIN /* may not return; must be done last */
+};
+
/*
* Prepare for firmware-assisted dump.
*/
@@ -1331,6 +1504,9 @@ int __init setup_fadump(void)
init_fadump_mem_struct(&fdm, fw_dump.reserve_dump_area_start);
fadump_init_files();
+ atomic_notifier_chain_register(&panic_notifier_list,
+ &fadump_panic_block);
+
return 1;
}
subsys_initcall(setup_fadump);
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
index e22734278458..8c54166491e7 100644
--- a/arch/powerpc/kernel/head_32.S
+++ b/arch/powerpc/kernel/head_32.S
@@ -388,7 +388,7 @@ DataAccess:
EXCEPTION_PROLOG
mfspr r10,SPRN_DSISR
stw r10,_DSISR(r11)
- andis. r0,r10,0xa470 /* weird error? */
+ andis. r0,r10,DSISR_BAD_FAULT_32S@h
bne 1f /* if not, try to put a PTE */
mfspr r4,SPRN_DAR /* into the hash table */
rlwinm r3,r10,32-15,21,21 /* DSISR_STORE -> _PAGE_RW */
@@ -403,13 +403,13 @@ DataAccess:
DO_KVM 0x400
InstructionAccess:
EXCEPTION_PROLOG
- andis. r0,r9,0x4000 /* no pte found? */
+ andis. r0,r9,SRR1_ISI_NOPT@h /* no pte found? */
beq 1f /* if so, try to put a PTE */
li r3,0 /* into the hash table */
mr r4,r12 /* SRR0 is fault address */
bl hash_page
1: mr r4,r12
- mr r5,r9
+ andis. r5,r9,DSISR_SRR1_MATCH_32S@h /* Filter relevant SRR1 bits */
EXC_XFER_LITE(0x400, handle_page_fault)
/* External interrupt */
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 0ddc602b33a4..ff8511d6d8ea 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -92,13 +92,13 @@ END_FTR_SECTION(0, 1)
.balign 8
.globl __secondary_hold_spinloop
__secondary_hold_spinloop:
- .llong 0x0
+ .8byte 0x0
/* Secondary processors write this value with their cpu # */
/* after they enter the spin loop immediately below. */
.globl __secondary_hold_acknowledge
__secondary_hold_acknowledge:
- .llong 0x0
+ .8byte 0x0
#ifdef CONFIG_RELOCATABLE
/* This flag is set to 1 by a loader if the kernel should run
@@ -650,7 +650,7 @@ __after_prom_start:
bctr
.balign 8
-p_end: .llong _end - copy_to_here
+p_end: .8byte _end - copy_to_here
4:
/*
@@ -892,7 +892,7 @@ _GLOBAL(relative_toc)
blr
.balign 8
-p_toc: .llong __toc_start + 0x8000 - 0b
+p_toc: .8byte __toc_start + 0x8000 - 0b
/*
* This is where the main kernel code starts.
diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index c032fe8c2d26..4fee00d414e8 100644
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -50,18 +50,20 @@
mtspr spr, reg
#endif
-/* Macro to test if an address is a kernel address */
#if CONFIG_TASK_SIZE <= 0x80000000 && CONFIG_PAGE_OFFSET >= 0x80000000
-#define IS_KERNEL(tmp, addr) \
- andis. tmp, addr, 0x8000 /* Address >= 0x80000000 */
-#define BRANCH_UNLESS_KERNEL(label) beq label
-#else
-#define IS_KERNEL(tmp, addr) \
- rlwinm tmp, addr, 16, 16, 31; \
- cmpli cr0, tmp, PAGE_OFFSET >> 16
-#define BRANCH_UNLESS_KERNEL(label) blt label
+/* By simply checking Address >= 0x80000000, we know if its a kernel address */
+#define SIMPLE_KERNEL_ADDRESS 1
#endif
+/*
+ * We need an ITLB miss handler for kernel addresses if:
+ * - Either we have modules
+ * - Or we have not pinned the first 8M
+ */
+#if defined(CONFIG_MODULES) || !defined(CONFIG_PIN_TLB_TEXT) || \
+ defined(CONFIG_DEBUG_PAGEALLOC)
+#define ITLB_MISS_KERNEL 1
+#endif
/*
* Value for the bits that have fixed value in RPN entries.
@@ -123,7 +125,6 @@ turn_on_mmu:
lis r0,start_here@h
ori r0,r0,start_here@l
mtspr SPRN_SRR0,r0
- SYNC
rfi /* enables MMU */
/*
@@ -170,7 +171,7 @@ turn_on_mmu:
stw r1,0(r11); \
tovirt(r1,r11); /* set new kernel sp */ \
li r10,MSR_KERNEL & ~(MSR_IR|MSR_DR); /* can take exceptions */ \
- MTMSRD(r10); /* (except for mach check in rtas) */ \
+ mtmsr r10; \
stw r0,GPR0(r11); \
SAVE_4GPRS(3, r11); \
SAVE_2GPRS(7, r11)
@@ -300,7 +301,7 @@ SystemCall:
/* On the MPC8xx, this is a software emulation interrupt. It occurs
* for all unimplemented and illegal instructions.
*/
- EXCEPTION(0x1000, SoftEmu, SoftwareEmulation, EXC_XFER_STD)
+ EXCEPTION(0x1000, SoftEmu, program_check_exception, EXC_XFER_STD)
. = 0x1100
/*
@@ -325,7 +326,7 @@ SystemCall:
#endif
InstructionTLBMiss:
-#if defined(CONFIG_8xx_CPU6) || defined(CONFIG_MODULES) || defined (CONFIG_DEBUG_PAGEALLOC) || defined (CONFIG_HUGETLB_PAGE)
+#if defined(CONFIG_8xx_CPU6) || defined(ITLB_MISS_KERNEL) || defined(CONFIG_HUGETLB_PAGE)
mtspr SPRN_SPRG_SCRATCH2, r3
#endif
EXCEPTION_PROLOG_0
@@ -343,15 +344,32 @@ InstructionTLBMiss:
INVALIDATE_ADJACENT_PAGES_CPU15(r11, r10)
/* Only modules will cause ITLB Misses as we always
* pin the first 8MB of kernel memory */
-#if defined(CONFIG_MODULES) || defined (CONFIG_DEBUG_PAGEALLOC) || defined (CONFIG_HUGETLB_PAGE)
+#if defined(ITLB_MISS_KERNEL) || defined(CONFIG_HUGETLB_PAGE)
mfcr r3
#endif
-#if defined(CONFIG_MODULES) || defined (CONFIG_DEBUG_PAGEALLOC)
- IS_KERNEL(r11, r10)
+#ifdef ITLB_MISS_KERNEL
+#if defined(SIMPLE_KERNEL_ADDRESS) && defined(CONFIG_PIN_TLB_TEXT)
+ andis. r11, r10, 0x8000 /* Address >= 0x80000000 */
+#else
+ rlwinm r11, r10, 16, 0xfff8
+ cmpli cr0, r11, PAGE_OFFSET@h
+#ifndef CONFIG_PIN_TLB_TEXT
+ /* It is assumed that kernel code fits into the first 8M page */
+_ENTRY(ITLBMiss_cmp)
+ cmpli cr7, r11, (PAGE_OFFSET + 0x0800000)@h
+#endif
+#endif
#endif
mfspr r11, SPRN_M_TW /* Get level 1 table */
-#if defined(CONFIG_MODULES) || defined (CONFIG_DEBUG_PAGEALLOC)
- BRANCH_UNLESS_KERNEL(3f)
+#ifdef ITLB_MISS_KERNEL
+#if defined(SIMPLE_KERNEL_ADDRESS) && defined(CONFIG_PIN_TLB_TEXT)
+ beq+ 3f
+#else
+ blt+ 3f
+#endif
+#ifndef CONFIG_PIN_TLB_TEXT
+ blt cr7, ITLBMissLinear
+#endif
lis r11, (swapper_pg_dir-PAGE_OFFSET)@ha
3:
#endif
@@ -369,7 +387,7 @@ InstructionTLBMiss:
rlwimi r10, r11, 0, 0, 32 - PAGE_SHIFT - 1 /* Add level 2 base */
lwz r10, 0(r10) /* Get the pte */
4:
-#if defined(CONFIG_MODULES) || defined (CONFIG_DEBUG_PAGEALLOC) || defined (CONFIG_HUGETLB_PAGE)
+#if defined(ITLB_MISS_KERNEL) || defined(CONFIG_HUGETLB_PAGE)
mtcr r3
#endif
/* Insert the APG into the TWC from the Linux PTE. */
@@ -400,7 +418,7 @@ InstructionTLBMiss:
MTSPR_CPU6(SPRN_MI_RPN, r10, r3) /* Update TLB entry */
/* Restore registers */
-#if defined(CONFIG_8xx_CPU6) || defined(CONFIG_MODULES) || defined (CONFIG_DEBUG_PAGEALLOC) || defined (CONFIG_HUGETLB_PAGE)
+#if defined(CONFIG_8xx_CPU6) || defined(ITLB_MISS_KERNEL) || defined(CONFIG_HUGETLB_PAGE)
mfspr r3, SPRN_SPRG_SCRATCH2
#endif
EXCEPTION_EPILOG_0
@@ -447,23 +465,23 @@ DataStoreTLBMiss:
* kernel page tables.
*/
mfspr r10, SPRN_MD_EPN
- rlwinm r10, r10, 16, 0xfff8
- cmpli cr0, r10, PAGE_OFFSET@h
+ rlwinm r11, r10, 16, 0xfff8
+ cmpli cr0, r11, PAGE_OFFSET@h
mfspr r11, SPRN_M_TW /* Get level 1 table */
blt+ 3f
+ rlwinm r11, r10, 16, 0xfff8
#ifndef CONFIG_PIN_TLB_IMMR
- cmpli cr0, r10, VIRT_IMMR_BASE@h
+ cmpli cr0, r11, VIRT_IMMR_BASE@h
#endif
_ENTRY(DTLBMiss_cmp)
- cmpli cr7, r10, (PAGE_OFFSET + 0x1800000)@h
- lis r11, (swapper_pg_dir-PAGE_OFFSET)@ha
+ cmpli cr7, r11, (PAGE_OFFSET + 0x1800000)@h
#ifndef CONFIG_PIN_TLB_IMMR
_ENTRY(DTLBMiss_jmp)
beq- DTLBMissIMMR
#endif
blt cr7, DTLBMissLinear
+ lis r11, (swapper_pg_dir-PAGE_OFFSET)@ha
3:
- mfspr r10, SPRN_MD_EPN
/* Insert level 1 index */
rlwimi r11, r10, 32 - ((PAGE_SHIFT - 2) << 1), (PAGE_SHIFT - 2) << 1, 29
@@ -569,8 +587,8 @@ _ENTRY(DTLBMiss_jmp)
InstructionTLBError:
EXCEPTION_PROLOG
mr r4,r12
- mr r5,r9
- andis. r10,r5,0x4000
+ andis. r5,r9,DSISR_SRR1_MATCH_32S@h /* Filter relevant SRR1 bits */
+ andis. r10,r9,SRR1_ISI_NOPT@h
beq+ 1f
tlbie r4
itlbie:
@@ -595,7 +613,7 @@ DARFixed:/* Return from dcbx instruction bug workaround */
mfspr r5,SPRN_DSISR
stw r5,_DSISR(r11)
mfspr r4,SPRN_DAR
- andis. r10,r5,0x4000
+ andis. r10,r5,DSISR_NOHPTE@h
beq+ 1f
tlbie r4
dtlbie:
@@ -684,7 +702,7 @@ DTLBMissLinear:
/* Set 8M byte page and mark it valid */
li r11, MD_PS8MEG | MD_SVALID
MTSPR_CPU6(SPRN_MD_TWC, r11, r3)
- rlwinm r10, r10, 16, 0x0f800000 /* 8xx supports max 256Mb RAM */
+ rlwinm r10, r10, 0, 0x0f800000 /* 8xx supports max 256Mb RAM */
ori r10, r10, 0xf0 | MD_SPS16K | _PAGE_SHARED | _PAGE_DIRTY | \
_PAGE_PRESENT
MTSPR_CPU6(SPRN_MD_RPN, r10, r11) /* Update TLB entry */
@@ -695,6 +713,22 @@ DTLBMissLinear:
EXCEPTION_EPILOG_0
rfi
+#ifndef CONFIG_PIN_TLB_TEXT
+ITLBMissLinear:
+ mtcr r3
+ /* Set 8M byte page and mark it valid */
+ li r11, MI_PS8MEG | MI_SVALID | _PAGE_EXEC
+ MTSPR_CPU6(SPRN_MI_TWC, r11, r3)
+ rlwinm r10, r10, 0, 0x0f800000 /* 8xx supports max 256Mb RAM */
+ ori r10, r10, 0xf0 | MI_SPS16K | _PAGE_SHARED | _PAGE_DIRTY | \
+ _PAGE_PRESENT
+ MTSPR_CPU6(SPRN_MI_RPN, r10, r11) /* Update TLB entry */
+
+ mfspr r3, SPRN_SPRG_SCRATCH2
+ EXCEPTION_EPILOG_0
+ rfi
+#endif
+
/* This is the procedure to calculate the data EA for buggy dcbx,dcbi instructions
* by decoding the registers used by the dcbx instruction and adding them.
* DAR is set to the calculated address.
@@ -705,9 +739,10 @@ FixupDAR:/* Entry point for dcbx workaround. */
mtspr SPRN_SPRG_SCRATCH2, r10
/* fetch instruction from memory. */
mfspr r10, SPRN_SRR0
- IS_KERNEL(r11, r10)
+ rlwinm r11, r10, 16, 0xfff8
+ cmpli cr0, r11, PAGE_OFFSET@h
mfspr r11, SPRN_M_TW /* Get level 1 table */
- BRANCH_UNLESS_KERNEL(3f)
+ blt+ 3f
rlwinm r11, r10, 16, 0xfff8
_ENTRY(FixupDAR_cmp)
cmpli cr7, r11, (PAGE_OFFSET + 0x1800000)@h
@@ -915,10 +950,8 @@ start_here:
rfi
/* Load up the kernel context */
2:
- SYNC /* Force all PTE updates to finish */
tlbia /* Clear all TLB entries */
sync /* wait for tlbia/tlbie to finish */
- TLBSYNC /* ... on all CPUs */
/* set up the PTE pointers for the Abatron bdiGDB.
*/
@@ -955,15 +988,14 @@ initial_mmu:
mtspr SPRN_MD_CTR, r10 /* remove PINNED DTLB entries */
tlbia /* Invalidate all TLB entries */
-/* Always pin the first 8 MB ITLB to prevent ITLB
- misses while mucking around with SRR0/SRR1 in asm
-*/
+#ifdef CONFIG_PIN_TLB_TEXT
lis r8, MI_RSV4I@h
ori r8, r8, 0x1c00
mtspr SPRN_MI_CTR, r8 /* Set instruction MMU control */
+#endif
-#ifdef CONFIG_PIN_TLB
+#ifdef CONFIG_PIN_TLB_DATA
oris r10, r10, MD_RSV4I@h
mtspr SPRN_MD_CTR, r10 /* Set data TLB control */
#endif
@@ -989,6 +1021,7 @@ initial_mmu:
* internal registers (among other things).
*/
#ifdef CONFIG_PIN_TLB_IMMR
+ oris r10, r10, MD_RSV4I@h
ori r10, r10, 0x1c00
mtspr SPRN_MD_CTR, r10
diff --git a/arch/powerpc/kernel/idle_book3s.S b/arch/powerpc/kernel/idle_book3s.S
index 4898d676dcae..1125c9be9e06 100644
--- a/arch/powerpc/kernel/idle_book3s.S
+++ b/arch/powerpc/kernel/idle_book3s.S
@@ -30,7 +30,9 @@
* Use unused space in the interrupt stack to save and restore
* registers for winkle support.
*/
+#define _MMCR0 GPR0
#define _SDR1 GPR3
+#define _PTCR GPR3
#define _RPR GPR4
#define _SPURR GPR5
#define _PURR GPR6
@@ -39,7 +41,7 @@
#define _AMOR GPR9
#define _WORT GPR10
#define _WORC GPR11
-#define _PTCR GPR12
+#define _LPCR GPR12
#define PSSCR_EC_ESL_MASK_SHIFTED (PSSCR_EC | PSSCR_ESL) >> 16
@@ -55,12 +57,14 @@ save_sprs_to_stack:
* here since any thread in the core might wake up first
*/
BEGIN_FTR_SECTION
- mfspr r3,SPRN_PTCR
- std r3,_PTCR(r1)
/*
* Note - SDR1 is dropped in Power ISA v3. Hence not restoring
* SDR1 here
*/
+ mfspr r3,SPRN_PTCR
+ std r3,_PTCR(r1)
+ mfspr r3,SPRN_LPCR
+ std r3,_LPCR(r1)
FTR_SECTION_ELSE
mfspr r3,SPRN_SDR1
std r3,_SDR1(r1)
@@ -81,7 +85,61 @@ ALT_FTR_SECTION_END_IFSET(CPU_FTR_ARCH_300)
std r3,_WORT(r1)
mfspr r3,SPRN_WORC
std r3,_WORC(r1)
+/*
+ * On POWER9, there are idle states such as stop4, invoked via cpuidle,
+ * that lose hypervisor resources. In such cases, we need to save
+ * additional SPRs before entering those idle states so that they can
+ * be restored to their older values on wakeup from the idle state.
+ *
+ * On POWER8, the only such deep idle state is winkle which is used
+ * only in the context of CPU-Hotplug, where these additional SPRs are
+ * reinitiazed to a sane value. Hence there is no need to save/restore
+ * these SPRs.
+ */
+BEGIN_FTR_SECTION
+ blr
+END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_300)
+
+power9_save_additional_sprs:
+ mfspr r3, SPRN_PID
+ mfspr r4, SPRN_LDBAR
+ std r3, STOP_PID(r13)
+ std r4, STOP_LDBAR(r13)
+
+ mfspr r3, SPRN_FSCR
+ mfspr r4, SPRN_HFSCR
+ std r3, STOP_FSCR(r13)
+ std r4, STOP_HFSCR(r13)
+
+ mfspr r3, SPRN_MMCRA
+ mfspr r4, SPRN_MMCR1
+ std r3, STOP_MMCRA(r13)
+ std r4, STOP_MMCR1(r13)
+ mfspr r3, SPRN_MMCR2
+ std r3, STOP_MMCR2(r13)
+ blr
+
+power9_restore_additional_sprs:
+ ld r3,_LPCR(r1)
+ ld r4, STOP_PID(r13)
+ mtspr SPRN_LPCR,r3
+ mtspr SPRN_PID, r4
+
+ ld r3, STOP_LDBAR(r13)
+ ld r4, STOP_FSCR(r13)
+ mtspr SPRN_LDBAR, r3
+ mtspr SPRN_FSCR, r4
+
+ ld r3, STOP_HFSCR(r13)
+ ld r4, STOP_MMCRA(r13)
+ mtspr SPRN_HFSCR, r3
+ mtspr SPRN_MMCRA, r4
+ /* We have already restored PACA_MMCR0 */
+ ld r3, STOP_MMCR1(r13)
+ ld r4, STOP_MMCR2(r13)
+ mtspr SPRN_MMCR1, r3
+ mtspr SPRN_MMCR2, r4
blr
/*
@@ -106,13 +164,9 @@ core_idle_lock_held:
/*
* Pass requested state in r3:
* r3 - PNV_THREAD_NAP/SLEEP/WINKLE in POWER8
- * - Requested STOP state in POWER9
+ * - Requested PSSCR value in POWER9
*
- * To check IRQ_HAPPENED in r4
- * 0 - don't check
- * 1 - check
- *
- * Address to 'rfid' to in r5
+ * Address of idle handler to branch to in realmode in r4
*/
pnv_powersave_common:
/* Use r3 to pass state nap/sleep/winkle */
@@ -122,37 +176,14 @@ pnv_powersave_common:
* need to save PC, some CR bits and the NV GPRs,
* but for now an interrupt frame will do.
*/
+ mtctr r4
+
mflr r0
std r0,16(r1)
stdu r1,-INT_FRAME_SIZE(r1)
std r0,_LINK(r1)
std r0,_NIP(r1)
- /* Hard disable interrupts */
- mfmsr r9
- rldicl r9,r9,48,1
- rotldi r9,r9,16
- mtmsrd r9,1 /* hard-disable interrupts */
-
- /* Check if something happened while soft-disabled */
- lbz r0,PACAIRQHAPPENED(r13)
- andi. r0,r0,~PACA_IRQ_HARD_DIS@l
- beq 1f
- cmpwi cr0,r4,0
- beq 1f
- addi r1,r1,INT_FRAME_SIZE
- ld r0,16(r1)
- li r3,0 /* Return 0 (no nap) */
- mtlr r0
- blr
-
-1: /* We mark irqs hard disabled as this is the state we'll
- * be in when returning and we need to tell arch_local_irq_restore()
- * about it
- */
- li r0,PACA_IRQ_HARD_DIS
- stb r0,PACAIRQHAPPENED(r13)
-
/* We haven't lost state ... yet */
li r0,0
stb r0,PACA_NAPSTATELOST(r13)
@@ -160,24 +191,42 @@ pnv_powersave_common:
/* Continue saving state */
SAVE_GPR(2, r1)
SAVE_NVGPRS(r1)
- mfcr r4
- std r4,_CCR(r1)
- std r9,_MSR(r1)
+ mfcr r5
+ std r5,_CCR(r1)
std r1,PACAR1(r13)
+BEGIN_FTR_SECTION
/*
+ * POWER9 does not require real mode to stop, and presently does not
+ * set hwthread_state for KVM (threads don't share MMU context), so
+ * we can remain in virtual mode for this.
+ */
+ bctr
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
+ /*
+ * POWER8
* Go to real mode to do the nap, as required by the architecture.
* Also, we need to be in real mode before setting hwthread_state,
* because as soon as we do that, another thread can switch
* the MMU context to the guest.
*/
LOAD_REG_IMMEDIATE(r7, MSR_IDLE)
- li r6, MSR_RI
- andc r6, r9, r6
- mtmsrd r6, 1 /* clear RI before setting SRR0/1 */
- mtspr SPRN_SRR0, r5
- mtspr SPRN_SRR1, r7
- rfid
+ mtmsrd r7,0
+ bctr
+
+/*
+ * This is the sequence required to execute idle instructions, as
+ * specified in ISA v2.07 (and earlier). MSR[IR] and MSR[DR] must be 0.
+ */
+#define IDLE_STATE_ENTER_SEQ_NORET(IDLE_INST) \
+ /* Magic NAP/SLEEP/WINKLE mode enter sequence */ \
+ std r0,0(r1); \
+ ptesync; \
+ ld r0,0(r1); \
+236: cmpd cr0,r0,r0; \
+ bne 236b; \
+ IDLE_INST;
+
.globl pnv_enter_arch207_idle_mode
pnv_enter_arch207_idle_mode:
@@ -270,24 +319,52 @@ enter_winkle:
/*
* r3 - PSSCR value corresponding to the requested stop state.
*/
-power_enter_stop:
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
- /* Tell KVM we're entering idle */
+power_enter_stop_kvm_rm:
+ /*
+ * This is currently unused because POWER9 KVM does not have to
+ * gather secondary threads into sibling mode, but the code is
+ * here in case that function is required.
+ *
+ * Tell KVM we're entering idle.
+ */
li r4,KVM_HWTHREAD_IN_IDLE
/* DO THIS IN REAL MODE! See comment above. */
stb r4,HSTATE_HWTHREAD_STATE(r13)
#endif
+power_enter_stop:
/*
* Check if we are executing the lite variant with ESL=EC=0
*/
andis. r4,r3,PSSCR_EC_ESL_MASK_SHIFTED
clrldi r3,r3,60 /* r3 = Bits[60:63] = Requested Level (RL) */
bne .Lhandle_esl_ec_set
- IDLE_STATE_ENTER_SEQ(PPC_STOP)
+ PPC_STOP
li r3,0 /* Since we didn't lose state, return 0 */
+
+ /*
+ * pnv_wakeup_noloss() expects r12 to contain the SRR1 value so
+ * it can determine if the wakeup reason is an HMI in
+ * CHECK_HMI_INTERRUPT.
+ *
+ * However, when we wakeup with ESL=0, SRR1 will not contain the wakeup
+ * reason, so there is no point setting r12 to SRR1.
+ *
+ * Further, we clear r12 here, so that we don't accidentally enter the
+ * HMI in pnv_wakeup_noloss() if the value of r12[42:45] == WAKE_HMI.
+ */
+ li r12, 0
b pnv_wakeup_noloss
.Lhandle_esl_ec_set:
+ /*
+ * POWER9 DD2 can incorrectly set PMAO when waking up after a
+ * state-loss idle. Saving and restoring MMCR0 over idle is a
+ * workaround.
+ */
+ mfspr r4,SPRN_MMCR0
+ std r4,_MMCR0(r1)
+
/*
* Check if the requested state is a deep idle state.
*/
@@ -295,7 +372,8 @@ power_enter_stop:
ld r4,ADDROFF(pnv_first_deep_stop_state)(r5)
cmpd r3,r4
bge .Lhandle_deep_stop
- IDLE_STATE_ENTER_SEQ_NORET(PPC_STOP)
+ PPC_STOP /* Does not return (system reset interrupt) */
+
.Lhandle_deep_stop:
/*
* Entering deep idle state.
@@ -317,47 +395,25 @@ lwarx_loop_stop:
bl save_sprs_to_stack
- IDLE_STATE_ENTER_SEQ_NORET(PPC_STOP)
+ PPC_STOP /* Does not return (system reset interrupt) */
-_GLOBAL(power7_idle)
+/*
+ * Entered with MSR[EE]=0 and no soft-masked interrupts pending.
+ * r3 contains desired idle state (PNV_THREAD_NAP/SLEEP/WINKLE).
+ */
+_GLOBAL(power7_idle_insn)
/* Now check if user or arch enabled NAP mode */
- LOAD_REG_ADDRBASE(r3,powersave_nap)
- lwz r4,ADDROFF(powersave_nap)(r3)
- cmpwi 0,r4,0
- beqlr
- li r3, 1
- /* fall through */
-
-_GLOBAL(power7_nap)
- mr r4,r3
- li r3,PNV_THREAD_NAP
- LOAD_REG_ADDR(r5, pnv_enter_arch207_idle_mode)
+ LOAD_REG_ADDR(r4, pnv_enter_arch207_idle_mode)
b pnv_powersave_common
- /* No return */
-
-_GLOBAL(power7_sleep)
- li r3,PNV_THREAD_SLEEP
- li r4,1
- LOAD_REG_ADDR(r5, pnv_enter_arch207_idle_mode)
- b pnv_powersave_common
- /* No return */
-
-_GLOBAL(power7_winkle)
- li r3,PNV_THREAD_WINKLE
- li r4,1
- LOAD_REG_ADDR(r5, pnv_enter_arch207_idle_mode)
- b pnv_powersave_common
- /* No return */
#define CHECK_HMI_INTERRUPT \
- mfspr r0,SPRN_SRR1; \
BEGIN_FTR_SECTION_NESTED(66); \
- rlwinm r0,r0,45-31,0xf; /* extract wake reason field (P8) */ \
+ rlwinm r0,r12,45-31,0xf; /* extract wake reason field (P8) */ \
FTR_SECTION_ELSE_NESTED(66); \
- rlwinm r0,r0,45-31,0xe; /* P7 wake reason field is 3 bits */ \
+ rlwinm r0,r12,45-31,0xe; /* P7 wake reason field is 3 bits */ \
ALT_FTR_SECTION_END_NESTED_IFSET(CPU_FTR_ARCH_207S, 66); \
cmpwi r0,0xa; /* Hypervisor maintenance ? */ \
- bne 20f; \
+ bne+ 20f; \
/* Invoke opal call to handle hmi */ \
ld r2,PACATOC(r13); \
ld r1,PACAR1(r13); \
@@ -369,16 +425,13 @@ ALT_FTR_SECTION_END_NESTED_IFSET(CPU_FTR_ARCH_207S, 66); \
20: nop;
/*
- * r3 - The PSSCR value corresponding to the stop state.
- * r4 - The PSSCR mask corrresonding to the stop state.
+ * Entered with MSR[EE]=0 and no soft-masked interrupts pending.
+ * r3 contains desired PSSCR register value.
*/
_GLOBAL(power9_idle_stop)
- mfspr r5,SPRN_PSSCR
- andc r5,r5,r4
- or r3,r3,r5
+ std r3, PACA_REQ_PSSCR(r13)
mtspr SPRN_PSSCR,r3
- LOAD_REG_ADDR(r5,power_enter_stop)
- li r4,1
+ LOAD_REG_ADDR(r4,power_enter_stop)
b pnv_powersave_common
/* No return */
@@ -436,17 +489,29 @@ pnv_powersave_wakeup_mce:
/*
* Now put the original SRR1 with SRR1_WAKEMCE_RESVD as the wake
- * reason into SRR1, which allows reuse of the system reset wakeup
+ * reason into r12, which allows reuse of the system reset wakeup
* code without being mistaken for another type of wakeup.
*/
- oris r3,r3,SRR1_WAKEMCE_RESVD@h
- mtspr SPRN_SRR1,r3
+ oris r12,r3,SRR1_WAKEMCE_RESVD@h
b pnv_powersave_wakeup
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+kvm_start_guest_check:
+ li r0,KVM_HWTHREAD_IN_KERNEL
+ stb r0,HSTATE_HWTHREAD_STATE(r13)
+ /* Order setting hwthread_state vs. testing hwthread_req */
+ sync
+ lbz r0,HSTATE_HWTHREAD_REQ(r13)
+ cmpwi r0,0
+ beqlr
+ b kvm_start_guest
+#endif
+
/*
* Called from reset vector for powersave wakeups.
* cr3 - set to gt if waking up with partial/complete hypervisor state loss
+ * r12 - SRR1
*/
.global pnv_powersave_wakeup
pnv_powersave_wakeup:
@@ -464,20 +529,15 @@ ALT_FTR_SECTION_END_IFSET(CPU_FTR_ARCH_300)
li r0,PNV_THREAD_RUNNING
stb r0,PACA_THREAD_IDLE_STATE(r13) /* Clear thread state */
+ mr r3,r12
+
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
- li r0,KVM_HWTHREAD_IN_KERNEL
- stb r0,HSTATE_HWTHREAD_STATE(r13)
- /* Order setting hwthread_state vs. testing hwthread_req */
- sync
- lbz r0,HSTATE_HWTHREAD_REQ(r13)
- cmpwi r0,0
- beq 1f
- b kvm_start_guest
-1:
+BEGIN_FTR_SECTION
+ bl kvm_start_guest_check
+END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_300)
#endif
/* Return SRR1 from power7_nap() */
- mfspr r3,SPRN_SRR1
blt cr3,pnv_wakeup_noloss
b pnv_wakeup_loss
@@ -489,18 +549,45 @@ ALT_FTR_SECTION_END_IFSET(CPU_FTR_ARCH_300)
*/
pnv_restore_hyp_resource_arch300:
/*
+ * Workaround for POWER9, if we lost resources, the ERAT
+ * might have been mixed up and needs flushing. We also need
+ * to reload MMCR0 (see comment above). We also need to set
+ * then clear bit 60 in MMCRA to ensure the PMU starts running.
+ */
+ blt cr3,1f
+ PPC_INVALIDATE_ERAT
+ ld r1,PACAR1(r13)
+ mfspr r4,SPRN_MMCRA
+ ori r4,r4,(1 << (63-60))
+ mtspr SPRN_MMCRA,r4
+ xori r4,r4,(1 << (63-60))
+ mtspr SPRN_MMCRA,r4
+ ld r4,_MMCR0(r1)
+ mtspr SPRN_MMCR0,r4
+1:
+ /*
* POWER ISA 3. Use PSSCR to determine if we
* are waking up from deep idle state
*/
LOAD_REG_ADDRBASE(r5,pnv_first_deep_stop_state)
ld r4,ADDROFF(pnv_first_deep_stop_state)(r5)
- mfspr r5,SPRN_PSSCR
+BEGIN_FTR_SECTION_NESTED(71)
+ /*
+ * Assume that we are waking up from the state
+ * same as the Requested Level (RL) in the PSSCR
+ * which are Bits 60-63
+ */
+ ld r5,PACA_REQ_PSSCR(r13)
+ rldicl r5,r5,0,60
+FTR_SECTION_ELSE_NESTED(71)
/*
* 0-3 bits correspond to Power-Saving Level Status
* which indicates the idle state we are waking up from
*/
+ mfspr r5, SPRN_PSSCR
rldicl r5,r5,4,60
+ALT_FTR_SECTION_END_NESTED_IFSET(CPU_FTR_POWER9_DD1, 71)
cmpd cr4,r5,r4
bge cr4,pnv_wakeup_tb_loss /* returns to caller */
@@ -567,9 +654,9 @@ pnv_wakeup_tb_loss:
* is required to return back to reset vector after hypervisor state
* restore is complete.
*/
+ mr r19,r12
mr r18,r4
mflr r17
- mfspr r16,SPRN_SRR1
BEGIN_FTR_SECTION
CHECK_HMI_INTERRUPT
END_FTR_SECTION_IFSET(CPU_FTR_HVMODE)
@@ -731,13 +818,14 @@ timebase_resync:
* Use cr3 which indicates that we are waking up with atleast partial
* hypervisor state loss to determine if TIMEBASE RESYNC is needed.
*/
- ble cr3,clear_lock
+ ble cr3,.Ltb_resynced
/* Time base re-sync */
bl opal_resync_timebase;
/*
- * If waking up from sleep, per core state is not lost, skip to
- * clear_lock.
+ * If waking up from sleep (POWER8), per core state
+ * is not lost, skip to clear_lock.
*/
+.Ltb_resynced:
blt cr4,clear_lock
/*
@@ -812,9 +900,20 @@ no_segments:
mtctr r12
bctrl
+/*
+ * On POWER9, we can come here on wakeup from a cpuidle stop state.
+ * Hence restore the additional SPRs to the saved value.
+ *
+ * On POWER8, we come here only on winkle. Since winkle is used
+ * only in the case of CPU-Hotplug, we don't need to restore
+ * the additional SPRs.
+ */
+BEGIN_FTR_SECTION
+ bl power9_restore_additional_sprs
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
hypervisor_state_restored:
- mtspr SPRN_SRR1,r16
+ mr r12,r19
mtlr r17
blr /* return to pnv_powersave_wakeup */
@@ -827,6 +926,7 @@ fastsleep_workaround_at_exit:
/*
* R3 here contains the value that will be returned to the caller
* of power7_nap.
+ * R12 contains SRR1 for CHECK_HMI_INTERRUPT.
*/
.global pnv_wakeup_loss
pnv_wakeup_loss:
@@ -836,32 +936,33 @@ BEGIN_FTR_SECTION
END_FTR_SECTION_IFSET(CPU_FTR_HVMODE)
REST_NVGPRS(r1)
REST_GPR(2, r1)
+ ld r4,PACAKMSR(r13)
+ ld r5,_LINK(r1)
ld r6,_CCR(r1)
- ld r4,_MSR(r1)
- ld r5,_NIP(r1)
addi r1,r1,INT_FRAME_SIZE
+ mtlr r5
mtcr r6
- mtspr SPRN_SRR1,r4
- mtspr SPRN_SRR0,r5
- rfid
+ mtmsrd r4
+ blr
/*
* R3 here contains the value that will be returned to the caller
* of power7_nap.
+ * R12 contains SRR1 for CHECK_HMI_INTERRUPT.
*/
pnv_wakeup_noloss:
lbz r0,PACA_NAPSTATELOST(r13)
cmpwi r0,0
bne pnv_wakeup_loss
+ ld r1,PACAR1(r13)
BEGIN_FTR_SECTION
CHECK_HMI_INTERRUPT
END_FTR_SECTION_IFSET(CPU_FTR_HVMODE)
- ld r1,PACAR1(r13)
- ld r6,_CCR(r1)
- ld r4,_MSR(r1)
+ ld r4,PACAKMSR(r13)
ld r5,_NIP(r1)
+ ld r6,_CCR(r1)
addi r1,r1,INT_FRAME_SIZE
+ mtlr r5
mtcr r6
- mtspr SPRN_SRR1,r4
- mtspr SPRN_SRR0,r5
- rfid
+ mtmsrd r4
+ blr
diff --git a/arch/powerpc/kernel/io-workarounds.c b/arch/powerpc/kernel/io-workarounds.c
index a582e0d42525..aa9f1b8261db 100644
--- a/arch/powerpc/kernel/io-workarounds.c
+++ b/arch/powerpc/kernel/io-workarounds.c
@@ -19,6 +19,8 @@
#include <asm/pgtable.h>
#include <asm/ppc-pci.h>
#include <asm/io-workarounds.h>
+#include <asm/pte-walk.h>
+
#define IOWA_MAX_BUS 8
@@ -75,8 +77,7 @@ struct iowa_bus *iowa_mem_find_bus(const PCI_IO_ADDR addr)
* We won't find huge pages here (iomem). Also can't hit
* a page table free due to init_mm
*/
- ptep = __find_linux_pte_or_hugepte(init_mm.pgd, vaddr,
- NULL, &hugepage_shift);
+ ptep = find_init_mm_pte(vaddr, &hugepage_shift);
if (ptep == NULL)
paddr = 0;
else {
@@ -192,7 +193,7 @@ void iowa_register_bus(struct pci_controller *phb, struct ppc_pci_io *ops,
if (iowa_bus_count >= IOWA_MAX_BUS) {
pr_err("IOWA:Too many pci bridges, "
- "workarounds disabled for %s\n", np->full_name);
+ "workarounds disabled for %pOF\n", np);
return;
}
@@ -207,6 +208,6 @@ void iowa_register_bus(struct pci_controller *phb, struct ppc_pci_io *ops,
iowa_bus_count++;
- pr_debug("IOWA:[%d]Add bus, %s.\n", iowa_bus_count-1, np->full_name);
+ pr_debug("IOWA:[%d]Add bus, %pOF.\n", iowa_bus_count-1, np);
}
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index f2b724cd9e64..af7a20dc6e09 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -127,8 +127,7 @@ static ssize_t fail_iommu_store(struct device *dev,
return count;
}
-static DEVICE_ATTR(fail_iommu, S_IRUGO|S_IWUSR, fail_iommu_show,
- fail_iommu_store);
+static DEVICE_ATTR_RW(fail_iommu);
static int fail_iommu_bus_notify(struct notifier_block *nb,
unsigned long action, void *data)
@@ -190,7 +189,7 @@ static unsigned long iommu_range_alloc(struct device *dev,
unsigned int pool_nr;
struct iommu_pool *pool;
- align_mask = 0xffffffffffffffffl >> (64 - align_order);
+ align_mask = (1ull << align_order) - 1;
/* This allocator was derived from x86_64's bit string search */
@@ -198,17 +197,17 @@ static unsigned long iommu_range_alloc(struct device *dev,
if (unlikely(npages == 0)) {
if (printk_ratelimit())
WARN_ON(1);
- return DMA_ERROR_CODE;
+ return IOMMU_MAPPING_ERROR;
}
if (should_fail_iommu(dev))
- return DMA_ERROR_CODE;
+ return IOMMU_MAPPING_ERROR;
/*
* We don't need to disable preemption here because any CPU can
* safely use any IOMMU pool.
*/
- pool_nr = __this_cpu_read(iommu_pool_hash) & (tbl->nr_pools - 1);
+ pool_nr = raw_cpu_read(iommu_pool_hash) & (tbl->nr_pools - 1);
if (largealloc)
pool = &(tbl->large_pool);
@@ -278,7 +277,7 @@ again:
} else {
/* Give up */
spin_unlock_irqrestore(&(pool->lock), flags);
- return DMA_ERROR_CODE;
+ return IOMMU_MAPPING_ERROR;
}
}
@@ -310,13 +309,13 @@ static dma_addr_t iommu_alloc(struct device *dev, struct iommu_table *tbl,
unsigned long attrs)
{
unsigned long entry;
- dma_addr_t ret = DMA_ERROR_CODE;
+ dma_addr_t ret = IOMMU_MAPPING_ERROR;
int build_fail;
entry = iommu_range_alloc(dev, tbl, npages, NULL, mask, align_order);
- if (unlikely(entry == DMA_ERROR_CODE))
- return DMA_ERROR_CODE;
+ if (unlikely(entry == IOMMU_MAPPING_ERROR))
+ return IOMMU_MAPPING_ERROR;
entry += tbl->it_offset; /* Offset into real TCE table */
ret = entry << tbl->it_page_shift; /* Set the return dma address */
@@ -328,12 +327,12 @@ static dma_addr_t iommu_alloc(struct device *dev, struct iommu_table *tbl,
/* tbl->it_ops->set() only returns non-zero for transient errors.
* Clean up the table bitmap in this case and return
- * DMA_ERROR_CODE. For all other errors the functionality is
+ * IOMMU_MAPPING_ERROR. For all other errors the functionality is
* not altered.
*/
if (unlikely(build_fail)) {
__iommu_free(tbl, ret, npages);
- return DMA_ERROR_CODE;
+ return IOMMU_MAPPING_ERROR;
}
/* Flush/invalidate TLB caches if necessary */
@@ -478,7 +477,7 @@ int ppc_iommu_map_sg(struct device *dev, struct iommu_table *tbl,
DBG(" - vaddr: %lx, size: %lx\n", vaddr, slen);
/* Handle failure */
- if (unlikely(entry == DMA_ERROR_CODE)) {
+ if (unlikely(entry == IOMMU_MAPPING_ERROR)) {
if (!(attrs & DMA_ATTR_NO_WARN) &&
printk_ratelimit())
dev_info(dev, "iommu_alloc failed, tbl %p "
@@ -545,7 +544,7 @@ int ppc_iommu_map_sg(struct device *dev, struct iommu_table *tbl,
*/
if (outcount < incount) {
outs = sg_next(outs);
- outs->dma_address = DMA_ERROR_CODE;
+ outs->dma_address = IOMMU_MAPPING_ERROR;
outs->dma_length = 0;
}
@@ -563,7 +562,7 @@ int ppc_iommu_map_sg(struct device *dev, struct iommu_table *tbl,
npages = iommu_num_pages(s->dma_address, s->dma_length,
IOMMU_PAGE_SIZE(tbl));
__iommu_free(tbl, vaddr, npages);
- s->dma_address = DMA_ERROR_CODE;
+ s->dma_address = IOMMU_MAPPING_ERROR;
s->dma_length = 0;
}
if (s == outs)
@@ -777,7 +776,7 @@ dma_addr_t iommu_map_page(struct device *dev, struct iommu_table *tbl,
unsigned long mask, enum dma_data_direction direction,
unsigned long attrs)
{
- dma_addr_t dma_handle = DMA_ERROR_CODE;
+ dma_addr_t dma_handle = IOMMU_MAPPING_ERROR;
void *vaddr;
unsigned long uaddr;
unsigned int npages, align;
@@ -797,7 +796,7 @@ dma_addr_t iommu_map_page(struct device *dev, struct iommu_table *tbl,
dma_handle = iommu_alloc(dev, tbl, vaddr, npages, direction,
mask >> tbl->it_page_shift, align,
attrs);
- if (dma_handle == DMA_ERROR_CODE) {
+ if (dma_handle == IOMMU_MAPPING_ERROR) {
if (!(attrs & DMA_ATTR_NO_WARN) &&
printk_ratelimit()) {
dev_info(dev, "iommu_alloc failed, tbl %p "
@@ -869,7 +868,7 @@ void *iommu_alloc_coherent(struct device *dev, struct iommu_table *tbl,
io_order = get_iommu_order(size, tbl);
mapping = iommu_alloc(dev, tbl, ret, nio_pages, DMA_BIDIRECTIONAL,
mask >> tbl->it_page_shift, io_order, 0);
- if (mapping == DMA_ERROR_CODE) {
+ if (mapping == IOMMU_MAPPING_ERROR) {
free_pages((unsigned long)ret, order);
return NULL;
}
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 5c291df30fe3..4e65bf82f5e0 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -24,7 +24,7 @@
* mask register (of which only 16 are defined), hence the weird shifting
* and complement of the cached_irq_mask. I want to be able to stuff
* this right into the SIU SMASK register.
- * Many of the prep/chrp functions are conditional compiled on CONFIG_8xx
+ * Many of the prep/chrp functions are conditional compiled on CONFIG_PPC_8xx
* to reduce code space and undefined function references.
*/
@@ -143,8 +143,22 @@ notrace unsigned int __check_irq_replay(void)
*/
unsigned char happened = local_paca->irq_happened;
- /* Clear bit 0 which we wouldn't clear otherwise */
- local_paca->irq_happened &= ~PACA_IRQ_HARD_DIS;
+ if (happened & PACA_IRQ_HARD_DIS) {
+ /* Clear bit 0 which we wouldn't clear otherwise */
+ local_paca->irq_happened &= ~PACA_IRQ_HARD_DIS;
+
+ /*
+ * We may have missed a decrementer interrupt if hard disabled.
+ * Check the decrementer register in case we had a rollover
+ * while hard disabled.
+ */
+ if (!(happened & PACA_IRQ_DEC)) {
+ if (decrementer_check_overflow()) {
+ local_paca->irq_happened |= PACA_IRQ_DEC;
+ happened |= PACA_IRQ_DEC;
+ }
+ }
+ }
/*
* Force the delivery of pending soft-disabled interrupts on PS3.
@@ -160,41 +174,39 @@ notrace unsigned int __check_irq_replay(void)
* This is a higher priority interrupt than the others, so
* replay it first.
*/
- local_paca->irq_happened &= ~PACA_IRQ_HMI;
- if (happened & PACA_IRQ_HMI)
+ if (happened & PACA_IRQ_HMI) {
+ local_paca->irq_happened &= ~PACA_IRQ_HMI;
return 0xe60;
+ }
- /*
- * We may have missed a decrementer interrupt. We check the
- * decrementer itself rather than the paca irq_happened field
- * in case we also had a rollover while hard disabled
- */
- local_paca->irq_happened &= ~PACA_IRQ_DEC;
- if ((happened & PACA_IRQ_DEC) || decrementer_check_overflow())
+ if (happened & PACA_IRQ_DEC) {
+ local_paca->irq_happened &= ~PACA_IRQ_DEC;
return 0x900;
+ }
- /* Finally check if an external interrupt happened */
- local_paca->irq_happened &= ~PACA_IRQ_EE;
- if (happened & PACA_IRQ_EE)
+ if (happened & PACA_IRQ_EE) {
+ local_paca->irq_happened &= ~PACA_IRQ_EE;
return 0x500;
+ }
#ifdef CONFIG_PPC_BOOK3E
- /* Finally check if an EPR external interrupt happened
- * this bit is typically set if we need to handle another
- * "edge" interrupt from within the MPIC "EPR" handler
+ /*
+ * Check if an EPR external interrupt happened this bit is typically
+ * set if we need to handle another "edge" interrupt from within the
+ * MPIC "EPR" handler.
*/
- local_paca->irq_happened &= ~PACA_IRQ_EE_EDGE;
- if (happened & PACA_IRQ_EE_EDGE)
+ if (happened & PACA_IRQ_EE_EDGE) {
+ local_paca->irq_happened &= ~PACA_IRQ_EE_EDGE;
return 0x500;
+ }
- local_paca->irq_happened &= ~PACA_IRQ_DBELL;
- if (happened & PACA_IRQ_DBELL)
+ if (happened & PACA_IRQ_DBELL) {
+ local_paca->irq_happened &= ~PACA_IRQ_DBELL;
return 0x280;
+ }
#else
- local_paca->irq_happened &= ~PACA_IRQ_DBELL;
if (happened & PACA_IRQ_DBELL) {
- if (cpu_has_feature(CPU_FTR_HVMODE))
- return 0xe80;
+ local_paca->irq_happened &= ~PACA_IRQ_DBELL;
return 0xa00;
}
#endif /* CONFIG_PPC_BOOK3E */
@@ -322,7 +334,8 @@ bool prep_irq_for_idle(void)
* First we need to hard disable to ensure no interrupt
* occurs before we effectively enter the low power state
*/
- hard_irq_disable();
+ __hard_irq_disable();
+ local_paca->irq_happened |= PACA_IRQ_HARD_DIS;
/*
* If anything happened while we were soft-disabled,
@@ -347,6 +360,65 @@ bool prep_irq_for_idle(void)
return true;
}
+#ifdef CONFIG_PPC_BOOK3S
+/*
+ * This is for idle sequences that return with IRQs off, but the
+ * idle state itself wakes on interrupt. Tell the irq tracer that
+ * IRQs are enabled for the duration of idle so it does not get long
+ * off times. Must be paired with fini_irq_for_idle_irqsoff.
+ */
+bool prep_irq_for_idle_irqsoff(void)
+{
+ WARN_ON(!irqs_disabled());
+
+ /*
+ * First we need to hard disable to ensure no interrupt
+ * occurs before we effectively enter the low power state
+ */
+ __hard_irq_disable();
+ local_paca->irq_happened |= PACA_IRQ_HARD_DIS;
+
+ /*
+ * If anything happened while we were soft-disabled,
+ * we return now and do not enter the low power state.
+ */
+ if (lazy_irq_pending())
+ return false;
+
+ /* Tell lockdep we are about to re-enable */
+ trace_hardirqs_on();
+
+ return true;
+}
+
+/*
+ * Take the SRR1 wakeup reason, index into this table to find the
+ * appropriate irq_happened bit.
+ */
+static const u8 srr1_to_lazyirq[0x10] = {
+ 0, 0, 0,
+ PACA_IRQ_DBELL,
+ 0,
+ PACA_IRQ_DBELL,
+ PACA_IRQ_DEC,
+ 0,
+ PACA_IRQ_EE,
+ PACA_IRQ_EE,
+ PACA_IRQ_HMI,
+ 0, 0, 0, 0, 0 };
+
+void irq_set_pending_from_srr1(unsigned long srr1)
+{
+ unsigned int idx = (srr1 & SRR1_WAKEMASK_P8) >> 18;
+
+ /*
+ * The 0 index (SRR1[42:45]=b0000) must always evaluate to 0,
+ * so this can be called unconditionally with srr1 wake reason.
+ */
+ local_paca->irq_happened |= srr1_to_lazyirq[idx];
+}
+#endif /* CONFIG_PPC_BOOK3S */
+
/*
* Force a replay of the external interrupt handler on this CPU.
*/
@@ -410,6 +482,18 @@ int arch_show_interrupts(struct seq_file *p, int prec)
seq_printf(p, " Hypervisor Maintenance Interrupts\n");
}
+ seq_printf(p, "%*s: ", prec, "NMI");
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", per_cpu(irq_stat, j).sreset_irqs);
+ seq_printf(p, " System Reset interrupts\n");
+
+#ifdef CONFIG_PPC_WATCHDOG
+ seq_printf(p, "%*s: ", prec, "WDG");
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", per_cpu(irq_stat, j).soft_nmi_irqs);
+ seq_printf(p, " Watchdog soft-NMI interrupts\n");
+#endif
+
#ifdef CONFIG_PPC_DOORBELL
if (cpu_has_feature(CPU_FTR_DBELL)) {
seq_printf(p, "%*s: ", prec, "DBL");
@@ -434,6 +518,10 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
sum += per_cpu(irq_stat, cpu).spurious_irqs;
sum += per_cpu(irq_stat, cpu).timer_irqs_others;
sum += per_cpu(irq_stat, cpu).hmi_exceptions;
+ sum += per_cpu(irq_stat, cpu).sreset_irqs;
+#ifdef CONFIG_PPC_WATCHDOG
+ sum += per_cpu(irq_stat, cpu).soft_nmi_irqs;
+#endif
#ifdef CONFIG_PPC_DOORBELL
sum += per_cpu(irq_stat, cpu).doorbell_irqs;
#endif
diff --git a/arch/powerpc/kernel/isa-bridge.c b/arch/powerpc/kernel/isa-bridge.c
index bb6f8993412e..1df6c74aa731 100644
--- a/arch/powerpc/kernel/isa-bridge.c
+++ b/arch/powerpc/kernel/isa-bridge.c
@@ -164,7 +164,7 @@ void __init isa_bridge_find_early(struct pci_controller *hose)
/* Set the global ISA io base to indicate we have an ISA bridge */
isa_io_base = ISA_IO_BASE;
- pr_debug("ISA bridge (early) is %s\n", np->full_name);
+ pr_debug("ISA bridge (early) is %pOF\n", np);
}
/**
@@ -187,15 +187,15 @@ void __init isa_bridge_init_non_pci(struct device_node *np)
pna = of_n_addr_cells(np);
if (of_property_read_u32(np, "#address-cells", &na) ||
of_property_read_u32(np, "#size-cells", &ns)) {
- pr_warn("ISA: Non-PCI bridge %s is missing address format\n",
- np->full_name);
+ pr_warn("ISA: Non-PCI bridge %pOF is missing address format\n",
+ np);
return;
}
/* Check it's a supported address format */
if (na != 2 || ns != 1) {
- pr_warn("ISA: Non-PCI bridge %s has unsupported address format\n",
- np->full_name);
+ pr_warn("ISA: Non-PCI bridge %pOF has unsupported address format\n",
+ np);
return;
}
rs = na + ns + pna;
@@ -203,8 +203,8 @@ void __init isa_bridge_init_non_pci(struct device_node *np)
/* Grab the ranges property */
ranges = of_get_property(np, "ranges", &rlen);
if (ranges == NULL || rlen < rs) {
- pr_warn("ISA: Non-PCI bridge %s has absent or invalid ranges\n",
- np->full_name);
+ pr_warn("ISA: Non-PCI bridge %pOF has absent or invalid ranges\n",
+ np);
return;
}
@@ -220,8 +220,8 @@ void __init isa_bridge_init_non_pci(struct device_node *np)
/* Got something ? */
if (!size || !pbasep) {
- pr_warn("ISA: Non-PCI bridge %s has no usable IO range\n",
- np->full_name);
+ pr_warn("ISA: Non-PCI bridge %pOF has no usable IO range\n",
+ np);
return;
}
@@ -233,15 +233,15 @@ void __init isa_bridge_init_non_pci(struct device_node *np)
/* Map pbase */
pbase = of_translate_address(np, pbasep);
if (pbase == OF_BAD_ADDR) {
- pr_warn("ISA: Non-PCI bridge %s failed to translate IO base\n",
- np->full_name);
+ pr_warn("ISA: Non-PCI bridge %pOF failed to translate IO base\n",
+ np);
return;
}
/* We need page alignment */
if ((cbase & ~PAGE_MASK) || (pbase & ~PAGE_MASK)) {
- pr_warn("ISA: Non-PCI bridge %s has non aligned IO range\n",
- np->full_name);
+ pr_warn("ISA: Non-PCI bridge %pOF has non aligned IO range\n",
+ np);
return;
}
@@ -255,7 +255,7 @@ void __init isa_bridge_init_non_pci(struct device_node *np)
__ioremap_at(pbase, (void *)ISA_IO_BASE,
size, pgprot_val(pgprot_noncached(__pgprot(0))));
- pr_debug("ISA: Non-PCI bridge is %s\n", np->full_name);
+ pr_debug("ISA: Non-PCI bridge is %pOF\n", np);
}
/**
@@ -277,8 +277,8 @@ static void isa_bridge_find_late(struct pci_dev *pdev,
/* Set the global ISA io base to indicate we have an ISA bridge */
isa_io_base = ISA_IO_BASE;
- pr_debug("ISA bridge (late) is %s on %s\n",
- devnode->full_name, pci_name(pdev));
+ pr_debug("ISA bridge (late) is %pOF on %s\n",
+ devnode, pci_name(pdev));
}
/**
diff --git a/arch/powerpc/kernel/kgdb.c b/arch/powerpc/kernel/kgdb.c
index dbf098121ce6..35e240a0a408 100644
--- a/arch/powerpc/kernel/kgdb.c
+++ b/arch/powerpc/kernel/kgdb.c
@@ -67,9 +67,9 @@ static struct hard_trap_info
#endif
#else /* ! (defined(CONFIG_40x) || defined(CONFIG_BOOKE)) */
{ 0x0d00, 0x05 /* SIGTRAP */ }, /* single-step */
-#if defined(CONFIG_8xx)
+#if defined(CONFIG_PPC_8xx)
{ 0x1000, 0x04 /* SIGILL */ }, /* software emulation */
-#else /* ! CONFIG_8xx */
+#else /* ! CONFIG_PPC_8xx */
{ 0x0f00, 0x04 /* SIGILL */ }, /* performance monitor */
{ 0x0f20, 0x08 /* SIGFPE */ }, /* altivec unavailable */
{ 0x1300, 0x05 /* SIGTRAP */ }, /* instruction address break */
diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c
index 01addfb0ed0a..367494dc67d9 100644
--- a/arch/powerpc/kernel/kprobes.c
+++ b/arch/powerpc/kernel/kprobes.c
@@ -164,17 +164,13 @@ NOKPROBE_SYMBOL(arch_prepare_kprobe);
void arch_arm_kprobe(struct kprobe *p)
{
- *p->addr = BREAKPOINT_INSTRUCTION;
- flush_icache_range((unsigned long) p->addr,
- (unsigned long) p->addr + sizeof(kprobe_opcode_t));
+ patch_instruction(p->addr, BREAKPOINT_INSTRUCTION);
}
NOKPROBE_SYMBOL(arch_arm_kprobe);
void arch_disarm_kprobe(struct kprobe *p)
{
- *p->addr = p->opcode;
- flush_icache_range((unsigned long) p->addr,
- (unsigned long) p->addr + sizeof(kprobe_opcode_t));
+ patch_instruction(p->addr, p->opcode);
}
NOKPROBE_SYMBOL(arch_disarm_kprobe);
@@ -221,7 +217,7 @@ static nokprobe_inline void set_current_kprobe(struct kprobe *p, struct pt_regs
kcb->kprobe_saved_msr = regs->msr;
}
-bool arch_function_offset_within_entry(unsigned long offset)
+bool arch_kprobe_on_func_entry(unsigned long offset)
{
#ifdef PPC64_ELF_ABI_v2
#ifdef CONFIG_KPROBES_ON_FTRACE
diff --git a/arch/powerpc/kernel/l2cr_6xx.S b/arch/powerpc/kernel/l2cr_6xx.S
index 97ec8557f974..6408f09dbbd9 100644
--- a/arch/powerpc/kernel/l2cr_6xx.S
+++ b/arch/powerpc/kernel/l2cr_6xx.S
@@ -181,7 +181,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_SPEC7450)
mtctr r4
li r4,0
1:
- lwzx r0,r0,r4
+ lwzx r0,0,r4
addi r4,r4,32 /* Go to start of next cache line */
bdnz 1b
isync
@@ -328,7 +328,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_L3CR)
mtctr r4
li r4,0
1:
- lwzx r0,r0,r4
+ lwzx r0,0,r4
dcbf 0,r4
addi r4,r4,32 /* Go to start of next cache line */
bdnz 1b
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 0694d20f85b6..5e5a64a8b4e4 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -147,8 +147,8 @@ static int __init add_legacy_port(struct device_node *np, int want_index,
legacy_serial_ports[index].serial_out = tsi_serial_out;
}
- printk(KERN_DEBUG "Found legacy serial port %d for %s\n",
- index, np->full_name);
+ printk(KERN_DEBUG "Found legacy serial port %d for %pOF\n",
+ index, np);
printk(KERN_DEBUG " %s=%llx, taddr=%llx, irq=%lx, clk=%d, speed=%d\n",
(iotype == UPIO_PORT) ? "port" : "mem",
(unsigned long long)base, (unsigned long long)taddr, irq,
@@ -207,7 +207,7 @@ static int __init add_legacy_isa_port(struct device_node *np,
int index = -1;
u64 taddr;
- DBG(" -> add_legacy_isa_port(%s)\n", np->full_name);
+ DBG(" -> add_legacy_isa_port(%pOF)\n", np);
/* Get the ISA port number */
reg = of_get_property(np, "reg", NULL);
@@ -256,7 +256,7 @@ static int __init add_legacy_pci_port(struct device_node *np,
unsigned int flags;
int iotype, index = -1, lindex = 0;
- DBG(" -> add_legacy_pci_port(%s)\n", np->full_name);
+ DBG(" -> add_legacy_pci_port(%pOF)\n", np);
/* We only support ports that have a clock frequency properly
* encoded in the device-tree (that is have an fcode). Anything
@@ -374,7 +374,7 @@ void __init find_legacy_serial_ports(void)
if (path != NULL) {
stdout = of_find_node_by_path(path);
if (stdout)
- DBG("stdout is %s\n", stdout->full_name);
+ DBG("stdout is %pOF\n", stdout);
} else {
DBG(" no linux,stdout-path !\n");
}
@@ -603,7 +603,7 @@ static int __init check_legacy_serial_console(void)
DBG(" can't find stdout package %s !\n", name);
return -ENODEV;
}
- DBG("stdout is %s\n", prom_stdout->full_name);
+ DBG("stdout is %pOF\n", prom_stdout);
name = of_get_property(prom_stdout, "name", NULL);
if (!name) {
diff --git a/arch/powerpc/kernel/mce.c b/arch/powerpc/kernel/mce.c
index 5f9eada3519b..9b2ea7e71c06 100644
--- a/arch/powerpc/kernel/mce.c
+++ b/arch/powerpc/kernel/mce.c
@@ -22,11 +22,14 @@
#undef DEBUG
#define pr_fmt(fmt) "mce: " fmt
+#include <linux/hardirq.h>
#include <linux/types.h>
#include <linux/ptrace.h>
#include <linux/percpu.h>
#include <linux/export.h>
#include <linux/irq_work.h>
+
+#include <asm/machdep.h>
#include <asm/mce.h>
static DEFINE_PER_CPU(int, mce_nest_count);
@@ -268,6 +271,7 @@ void machine_check_print_event_info(struct machine_check_event *evt,
static const char *mc_ra_types[] = {
"Indeterminate",
"Instruction fetch (bad)",
+ "Instruction fetch (foreign)",
"Page table walk ifetch (bad)",
"Page table walk ifetch (foreign)",
"Load (bad)",
@@ -405,6 +409,7 @@ void machine_check_print_event_info(struct machine_check_event *evt,
break;
}
}
+EXPORT_SYMBOL_GPL(machine_check_print_event_info);
uint64_t get_mce_fault_addr(struct machine_check_event *evt)
{
@@ -444,3 +449,33 @@ uint64_t get_mce_fault_addr(struct machine_check_event *evt)
return 0;
}
EXPORT_SYMBOL(get_mce_fault_addr);
+
+/*
+ * This function is called in real mode. Strictly no printk's please.
+ *
+ * regs->nip and regs->msr contains srr0 and ssr1.
+ */
+long machine_check_early(struct pt_regs *regs)
+{
+ long handled = 0;
+
+ __this_cpu_inc(irq_stat.mce_exceptions);
+
+ if (cur_cpu_spec && cur_cpu_spec->machine_check_early)
+ handled = cur_cpu_spec->machine_check_early(regs);
+ return handled;
+}
+
+long hmi_exception_realmode(struct pt_regs *regs)
+{
+ __this_cpu_inc(irq_stat.hmi_exceptions);
+
+ wait_for_subcore_guest_exit();
+
+ if (ppc_md.hmi_exception_early)
+ ppc_md.hmi_exception_early(regs);
+
+ wait_for_tb_resync();
+
+ return 0;
+}
diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c
index f913139bb0c2..72f153c6f3fa 100644
--- a/arch/powerpc/kernel/mce_power.c
+++ b/arch/powerpc/kernel/mce_power.c
@@ -53,6 +53,60 @@ static void flush_tlb_206(unsigned int num_sets, unsigned int action)
asm volatile("ptesync" : : : "memory");
}
+static void flush_tlb_300(unsigned int num_sets, unsigned int action)
+{
+ unsigned long rb;
+ unsigned int i;
+ unsigned int r;
+
+ switch (action) {
+ case TLB_INVAL_SCOPE_GLOBAL:
+ rb = TLBIEL_INVAL_SET;
+ break;
+ case TLB_INVAL_SCOPE_LPID:
+ rb = TLBIEL_INVAL_SET_LPID;
+ break;
+ default:
+ BUG();
+ break;
+ }
+
+ asm volatile("ptesync" : : : "memory");
+
+ if (early_radix_enabled())
+ r = 1;
+ else
+ r = 0;
+
+ /*
+ * First flush table/PWC caches with set 0, then flush the
+ * rest of the sets, partition scope. Radix must then do it
+ * all again with process scope. Hash just has to flush
+ * process table.
+ */
+ asm volatile(PPC_TLBIEL(%0, %1, %2, %3, %4) : :
+ "r"(rb), "r"(0), "i"(2), "i"(0), "r"(r));
+ for (i = 1; i < num_sets; i++) {
+ unsigned long set = i * (1<<TLBIEL_INVAL_SET_SHIFT);
+
+ asm volatile(PPC_TLBIEL(%0, %1, %2, %3, %4) : :
+ "r"(rb+set), "r"(0), "i"(2), "i"(0), "r"(r));
+ }
+
+ asm volatile(PPC_TLBIEL(%0, %1, %2, %3, %4) : :
+ "r"(rb), "r"(0), "i"(2), "i"(1), "r"(r));
+ if (early_radix_enabled()) {
+ for (i = 1; i < num_sets; i++) {
+ unsigned long set = i * (1<<TLBIEL_INVAL_SET_SHIFT);
+
+ asm volatile(PPC_TLBIEL(%0, %1, %2, %3, %4) : :
+ "r"(rb+set), "r"(0), "i"(2), "i"(1), "r"(r));
+ }
+ }
+
+ asm volatile("ptesync" : : : "memory");
+}
+
/*
* Generic routines to flush TLB on POWER processors. These routines
* are used as flush_tlb hook in the cpu_spec.
@@ -79,7 +133,7 @@ void __flush_tlb_power9(unsigned int action)
else
num_sets = POWER9_TLB_SETS_HASH;
- flush_tlb_206(num_sets, action);
+ flush_tlb_300(num_sets, action);
}
@@ -236,6 +290,9 @@ static const struct mce_ierror_table mce_p9_ierror_table[] = {
{ 0x00000000081c0000, 0x0000000000180000, true,
MCE_ERROR_TYPE_UE, MCE_UE_ERROR_PAGE_TABLE_WALK_IFETCH,
MCE_INITIATOR_CPU, MCE_SEV_ERROR_SYNC, },
+{ 0x00000000081c0000, 0x00000000001c0000, true,
+ MCE_ERROR_TYPE_RA, MCE_RA_ERROR_IFETCH_FOREIGN,
+ MCE_INITIATOR_CPU, MCE_SEV_ERROR_SYNC, },
{ 0x00000000081c0000, 0x0000000008000000, true,
MCE_ERROR_TYPE_LINK,MCE_LINK_ERROR_IFETCH_TIMEOUT,
MCE_INITIATOR_CPU, MCE_SEV_ERROR_SYNC, },
@@ -567,5 +624,18 @@ long __machine_check_early_realmode_p8(struct pt_regs *regs)
long __machine_check_early_realmode_p9(struct pt_regs *regs)
{
+ /*
+ * On POWER9 DD2.1 and below, it's possible to get a machine check
+ * caused by a paste instruction where only DSISR bit 25 is set. This
+ * will result in the MCE handler seeing an unknown event and the kernel
+ * crashing. An MCE that occurs like this is spurious, so we don't need
+ * to do anything in terms of servicing it. If there is something that
+ * needs to be serviced, the CPU will raise the MCE again with the
+ * correct DSISR so that it can be serviced properly. So detect this
+ * case and mark it as handled.
+ */
+ if (SRR1_MC_LOADSTORE(regs->msr) && regs->dsisr == 0x02000000)
+ return 1;
+
return mce_handle_error(regs, mce_p9_derror_table, mce_p9_ierror_table);
}
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 84db14e435f5..3f7a9a2d2435 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -244,8 +244,7 @@ _GLOBAL(_nmask_and_or_msr)
*/
_GLOBAL(real_readb)
mfmsr r7
- ori r0,r7,MSR_DR
- xori r0,r0,MSR_DR
+ rlwinm r0,r7,0,~MSR_DR
sync
mtmsr r0
sync
@@ -262,8 +261,7 @@ _GLOBAL(real_readb)
*/
_GLOBAL(real_writeb)
mfmsr r7
- ori r0,r7,MSR_DR
- xori r0,r0,MSR_DR
+ rlwinm r0,r7,0,~MSR_DR
sync
mtmsr r0
sync
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index c119044cad0d..8ac0bd2bddb0 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -614,6 +614,18 @@ _GLOBAL(kexec_sequence)
li r0,0
std r0,16(r1)
+BEGIN_FTR_SECTION
+ /*
+ * This is the best time to turn AMR/IAMR off.
+ * key 0 is used in radix for supervisor<->user
+ * protection, but on hash key 0 is reserved
+ * ideally we want to enter with a clean state.
+ * NOTE, we rely on r0 being 0 from above.
+ */
+ mtspr SPRN_IAMR,r0
+ mtspr SPRN_AMOR,r0
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
+
/* save regs for local vars on new stack.
* yes, we won't go back, but ...
*/
diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index eae61b044e9e..496d6393bd41 100644
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -792,21 +792,17 @@ static ssize_t dev_nvram_write(struct file *file, const char __user *buf,
count = min_t(size_t, count, size - *ppos);
count = min(count, PAGE_SIZE);
- ret = -ENOMEM;
- tmp = kmalloc(count, GFP_KERNEL);
- if (!tmp)
- goto out;
-
- ret = -EFAULT;
- if (copy_from_user(tmp, buf, count))
+ tmp = memdup_user(buf, count);
+ if (IS_ERR(tmp)) {
+ ret = PTR_ERR(tmp);
goto out;
+ }
ret = ppc_md.nvram_write(tmp, count, ppos);
-out:
kfree(tmp);
+out:
return ret;
-
}
static long dev_nvram_ioctl(struct file *file, unsigned int cmd,
diff --git a/arch/powerpc/kernel/of_platform.c b/arch/powerpc/kernel/of_platform.c
index 34aeac54f120..becaec990140 100644
--- a/arch/powerpc/kernel/of_platform.c
+++ b/arch/powerpc/kernel/of_platform.c
@@ -45,7 +45,7 @@ static int of_pci_phb_probe(struct platform_device *dev)
if (ppc_md.pci_setup_phb == NULL)
return -ENODEV;
- pr_info("Setting up PCI bus %s\n", dev->dev.of_node->full_name);
+ pr_info("Setting up PCI bus %pOF\n", dev->dev.of_node);
/* Alloc and setup PHB data structure */
phb = pcibios_alloc_controller(dev->dev.of_node);
diff --git a/arch/powerpc/kernel/optprobes.c b/arch/powerpc/kernel/optprobes.c
index ec60ed0d4aad..91e037ab20a1 100644
--- a/arch/powerpc/kernel/optprobes.c
+++ b/arch/powerpc/kernel/optprobes.c
@@ -104,8 +104,10 @@ static unsigned long can_optimize(struct kprobe *p)
* and that can be emulated.
*/
if (!is_conditional_branch(*p->ainsn.insn) &&
- analyse_instr(&op, &regs, *p->ainsn.insn))
+ analyse_instr(&op, &regs, *p->ainsn.insn) == 1) {
+ emulate_update_regs(&regs, &op);
nip = regs.nip;
+ }
return nip;
}
@@ -158,12 +160,13 @@ void arch_remove_optimized_kprobe(struct optimized_kprobe *op)
void patch_imm32_load_insns(unsigned int val, kprobe_opcode_t *addr)
{
/* addis r4,0,(insn)@h */
- *addr++ = PPC_INST_ADDIS | ___PPC_RT(4) |
- ((val >> 16) & 0xffff);
+ patch_instruction(addr, PPC_INST_ADDIS | ___PPC_RT(4) |
+ ((val >> 16) & 0xffff));
+ addr++;
/* ori r4,r4,(insn)@l */
- *addr = PPC_INST_ORI | ___PPC_RA(4) | ___PPC_RS(4) |
- (val & 0xffff);
+ patch_instruction(addr, PPC_INST_ORI | ___PPC_RA(4) |
+ ___PPC_RS(4) | (val & 0xffff));
}
/*
@@ -173,24 +176,28 @@ void patch_imm32_load_insns(unsigned int val, kprobe_opcode_t *addr)
void patch_imm64_load_insns(unsigned long val, kprobe_opcode_t *addr)
{
/* lis r3,(op)@highest */
- *addr++ = PPC_INST_ADDIS | ___PPC_RT(3) |
- ((val >> 48) & 0xffff);
+ patch_instruction(addr, PPC_INST_ADDIS | ___PPC_RT(3) |
+ ((val >> 48) & 0xffff));
+ addr++;
/* ori r3,r3,(op)@higher */
- *addr++ = PPC_INST_ORI | ___PPC_RA(3) | ___PPC_RS(3) |
- ((val >> 32) & 0xffff);
+ patch_instruction(addr, PPC_INST_ORI | ___PPC_RA(3) |
+ ___PPC_RS(3) | ((val >> 32) & 0xffff));
+ addr++;
/* rldicr r3,r3,32,31 */
- *addr++ = PPC_INST_RLDICR | ___PPC_RA(3) | ___PPC_RS(3) |
- __PPC_SH64(32) | __PPC_ME64(31);
+ patch_instruction(addr, PPC_INST_RLDICR | ___PPC_RA(3) |
+ ___PPC_RS(3) | __PPC_SH64(32) | __PPC_ME64(31));
+ addr++;
/* oris r3,r3,(op)@h */
- *addr++ = PPC_INST_ORIS | ___PPC_RA(3) | ___PPC_RS(3) |
- ((val >> 16) & 0xffff);
+ patch_instruction(addr, PPC_INST_ORIS | ___PPC_RA(3) |
+ ___PPC_RS(3) | ((val >> 16) & 0xffff));
+ addr++;
/* ori r3,r3,(op)@l */
- *addr = PPC_INST_ORI | ___PPC_RA(3) | ___PPC_RS(3) |
- (val & 0xffff);
+ patch_instruction(addr, PPC_INST_ORI | ___PPC_RA(3) |
+ ___PPC_RS(3) | (val & 0xffff));
}
int arch_prepare_optimized_kprobe(struct optimized_kprobe *op, struct kprobe *p)
@@ -198,7 +205,8 @@ int arch_prepare_optimized_kprobe(struct optimized_kprobe *op, struct kprobe *p)
kprobe_opcode_t *buff, branch_op_callback, branch_emulate_step;
kprobe_opcode_t *op_callback_addr, *emulate_step_addr;
long b_offset;
- unsigned long nip;
+ unsigned long nip, size;
+ int rc, i;
kprobe_ppc_optinsn_slots.insn_size = MAX_OPTINSN_SIZE;
@@ -231,8 +239,14 @@ int arch_prepare_optimized_kprobe(struct optimized_kprobe *op, struct kprobe *p)
goto error;
/* Setup template */
- memcpy(buff, optprobe_template_entry,
- TMPL_END_IDX * sizeof(kprobe_opcode_t));
+ /* We can optimize this via patch_instruction_window later */
+ size = (TMPL_END_IDX * sizeof(kprobe_opcode_t)) / sizeof(int);
+ pr_devel("Copying template to %p, size %lu\n", buff, size);
+ for (i = 0; i < size; i++) {
+ rc = patch_instruction(buff + i, *(optprobe_template_entry + i));
+ if (rc < 0)
+ goto error;
+ }
/*
* Fixup the template with instructions to:
@@ -261,8 +275,8 @@ int arch_prepare_optimized_kprobe(struct optimized_kprobe *op, struct kprobe *p)
if (!branch_op_callback || !branch_emulate_step)
goto error;
- buff[TMPL_CALL_HDLR_IDX] = branch_op_callback;
- buff[TMPL_EMULATE_IDX] = branch_emulate_step;
+ patch_instruction(buff + TMPL_CALL_HDLR_IDX, branch_op_callback);
+ patch_instruction(buff + TMPL_EMULATE_IDX, branch_emulate_step);
/*
* 3. load instruction to be emulated into relevant register, and
@@ -272,8 +286,7 @@ int arch_prepare_optimized_kprobe(struct optimized_kprobe *op, struct kprobe *p)
/*
* 4. branch back from trampoline
*/
- buff[TMPL_RET_IDX] = create_branch((unsigned int *)buff + TMPL_RET_IDX,
- (unsigned long)nip, 0);
+ patch_branch(buff + TMPL_RET_IDX, (unsigned long)nip, 0);
flush_icache_range((unsigned long)buff,
(unsigned long)(&buff[TMPL_END_IDX]));
diff --git a/arch/powerpc/kernel/optprobes_head.S b/arch/powerpc/kernel/optprobes_head.S
index 4937bef7652f..52fc864cdec4 100644
--- a/arch/powerpc/kernel/optprobes_head.S
+++ b/arch/powerpc/kernel/optprobes_head.S
@@ -60,10 +60,6 @@ optprobe_template_entry:
std r5,_CCR(r1)
lbz r5,PACASOFTIRQEN(r13)
std r5,SOFTE(r1)
- mfdar r5
- std r5,_DAR(r1)
- mfdsisr r5
- std r5,_DSISR(r1)
/*
* We may get here from a module, so load the kernel TOC in r2.
@@ -122,10 +118,6 @@ optprobe_template_call_emulate:
mtxer r5
ld r5,_CCR(r1)
mtcr r5
- ld r5,_DAR(r1)
- mtdar r5
- ld r5,_DSISR(r1)
- mtdsisr r5
REST_GPR(0,r1)
REST_10GPRS(2,r1)
REST_10GPRS(12,r1)
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index 8d63627e067f..2ff2b8a19f71 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -99,18 +99,27 @@ static inline void free_lppacas(void) { }
* If you make the number of persistent SLB entries dynamic, please also
* update PR KVM to flush and restore them accordingly.
*/
-static struct slb_shadow *slb_shadow;
+static struct slb_shadow * __initdata slb_shadow;
static void __init allocate_slb_shadows(int nr_cpus, int limit)
{
int size = PAGE_ALIGN(sizeof(struct slb_shadow) * nr_cpus);
+
+ if (early_radix_enabled())
+ return;
+
slb_shadow = __va(memblock_alloc_base(size, PAGE_SIZE, limit));
memset(slb_shadow, 0, size);
}
static struct slb_shadow * __init init_slb_shadow(int cpu)
{
- struct slb_shadow *s = &slb_shadow[cpu];
+ struct slb_shadow *s;
+
+ if (early_radix_enabled())
+ return NULL;
+
+ s = &slb_shadow[cpu];
/*
* When we come through here to initialise boot_paca, the slb_shadow
@@ -215,7 +224,7 @@ void __init allocate_pacas(void)
paca = __va(memblock_alloc_base(paca_size, PAGE_SIZE, limit));
memset(paca, 0, paca_size);
- printk(KERN_DEBUG "Allocated %u bytes for %d pacas at %p\n",
+ printk(KERN_DEBUG "Allocated %u bytes for %u pacas at %p\n",
paca_size, nr_cpu_ids, paca);
allocate_lppacas(nr_cpu_ids, limit);
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 341a7469cab8..02831a396419 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -373,9 +373,8 @@ static int pci_read_irq_line(struct pci_dev *pci_dev)
if (virq)
irq_set_irq_type(virq, IRQ_TYPE_LEVEL_LOW);
} else {
- pr_debug(" Got one, spec %d cells (0x%08x 0x%08x...) on %s\n",
- oirq.args_count, oirq.args[0], oirq.args[1],
- of_node_full_name(oirq.np));
+ pr_debug(" Got one, spec %d cells (0x%08x 0x%08x...) on %pOF\n",
+ oirq.args_count, oirq.args[0], oirq.args[1], oirq.np);
virq = irq_create_of_mapping(&oirq);
}
@@ -741,8 +740,8 @@ void pci_process_bridge_OF_ranges(struct pci_controller *hose,
struct of_pci_range range;
struct of_pci_range_parser parser;
- printk(KERN_INFO "PCI host bridge %s %s ranges:\n",
- dev->full_name, primary ? "(primary)" : "");
+ printk(KERN_INFO "PCI host bridge %pOF %s ranges:\n",
+ dev, primary ? "(primary)" : "");
/* Check for ranges property */
if (of_pci_range_parser_init(&parser, dev))
@@ -1556,8 +1555,8 @@ static void pcibios_setup_phb_resources(struct pci_controller *hose,
if (!res->flags) {
pr_debug("PCI: I/O resource not set for host"
- " bridge %s (domain %d)\n",
- hose->dn->full_name, hose->global_number);
+ " bridge %pOF (domain %d)\n",
+ hose->dn, hose->global_number);
} else {
offset = pcibios_io_space_offset(hose);
@@ -1668,7 +1667,7 @@ void pcibios_scan_phb(struct pci_controller *hose)
struct device_node *node = hose->dn;
int mode;
- pr_debug("PCI: Scanning PHB %s\n", of_node_full_name(node));
+ pr_debug("PCI: Scanning PHB %pOF\n", node);
/* Get some IO space for the new PHB */
pcibios_setup_phb_io_space(hose);
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index 41c86c6b6e4d..1d817f4d97d9 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -79,8 +79,8 @@ make_one_node_map(struct device_node* node, u8 pci_bus)
return;
bus_range = of_get_property(node, "bus-range", &len);
if (bus_range == NULL || len < 2 * sizeof(int)) {
- printk(KERN_WARNING "Can't get bus-range for %s, "
- "assuming it starts at 0\n", node->full_name);
+ printk(KERN_WARNING "Can't get bus-range for %pOF, "
+ "assuming it starts at 0\n", node);
pci_to_OF_bus_map[pci_bus] = 0;
} else
pci_to_OF_bus_map[pci_bus] = bus_range[0];
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index ed5e9ff61a68..932b9741aa8f 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -111,7 +111,7 @@ int pcibios_unmap_io_space(struct pci_bus *bus)
if (hose->io_base_alloc == NULL)
return 0;
- pr_debug("IO unmapping for PHB %s\n", hose->dn->full_name);
+ pr_debug("IO unmapping for PHB %pOF\n", hose->dn);
pr_debug(" alloc=0x%p\n", hose->io_base_alloc);
/* This is a PHB, we fully unmap the IO area */
@@ -151,7 +151,7 @@ static int pcibios_map_phb_io_space(struct pci_controller *hose)
hose->io_base_virt = (void __iomem *)(area->addr +
hose->io_base_phys - phys_page);
- pr_debug("IO mapping for PHB %s\n", hose->dn->full_name);
+ pr_debug("IO mapping for PHB %pOF\n", hose->dn);
pr_debug(" phys=0x%016llx, virt=0x%p (alloc=0x%p)\n",
hose->io_base_phys, hose->io_base_virt, hose->io_base_alloc);
pr_debug(" size=0x%016llx (alloc=0x%016lx)\n",
diff --git a/arch/powerpc/kernel/pci_dn.c b/arch/powerpc/kernel/pci_dn.c
index 592693437070..0e395afbf0f4 100644
--- a/arch/powerpc/kernel/pci_dn.c
+++ b/arch/powerpc/kernel/pci_dn.c
@@ -139,7 +139,6 @@ struct pci_dn *pci_get_pdn(struct pci_dev *pdev)
#ifdef CONFIG_PCI_IOV
static struct pci_dn *add_one_dev_pci_data(struct pci_dn *parent,
- struct pci_dev *pdev,
int vf_index,
int busno, int devfn)
{
@@ -150,10 +149,8 @@ static struct pci_dn *add_one_dev_pci_data(struct pci_dn *parent,
return NULL;
pdn = kzalloc(sizeof(*pdn), GFP_KERNEL);
- if (!pdn) {
- dev_warn(&pdev->dev, "%s: Out of memory!\n", __func__);
+ if (!pdn)
return NULL;
- }
pdn->phb = parent->phb;
pdn->parent = parent;
@@ -167,13 +164,6 @@ static struct pci_dn *add_one_dev_pci_data(struct pci_dn *parent,
INIT_LIST_HEAD(&pdn->list);
list_add_tail(&pdn->list, &parent->child_list);
- /*
- * If we already have PCI device instance, lets
- * bind them.
- */
- if (pdev)
- pdev->dev.archdata.pci_data = pdn;
-
return pdn;
}
#endif
@@ -201,7 +191,7 @@ struct pci_dn *add_dev_pci_data(struct pci_dev *pdev)
for (i = 0; i < pci_sriov_get_totalvfs(pdev); i++) {
struct eeh_dev *edev __maybe_unused;
- pdn = add_one_dev_pci_data(parent, NULL, i,
+ pdn = add_one_dev_pci_data(parent, i,
pci_iov_virtfn_bus(pdev, i),
pci_iov_virtfn_devfn(pdev, i));
if (!pdn) {
@@ -303,7 +293,6 @@ struct pci_dn *pci_add_device_node_info(struct pci_controller *hose,
if (pdn == NULL)
return NULL;
dn->data = pdn;
- pdn->node = dn;
pdn->phb = hose;
#ifdef CONFIG_PPC_POWERNV
pdn->pe_number = IODA_INVALID_PE;
@@ -352,6 +341,7 @@ EXPORT_SYMBOL_GPL(pci_add_device_node_info);
void pci_remove_device_node_info(struct device_node *dn)
{
struct pci_dn *pdn = dn ? PCI_DN(dn) : NULL;
+ struct device_node *parent;
#ifdef CONFIG_EEH
struct eeh_dev *edev = pdn_to_eeh_dev(pdn);
@@ -364,8 +354,10 @@ void pci_remove_device_node_info(struct device_node *dn)
WARN_ON(!list_empty(&pdn->child_list));
list_del(&pdn->list);
- if (pdn->parent)
- of_node_put(pdn->parent->node);
+
+ parent = of_get_parent(dn);
+ if (parent)
+ of_node_put(parent);
dn->data = NULL;
kfree(pdn);
diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c
index ea3d98115b88..0d790f8432d2 100644
--- a/arch/powerpc/kernel/pci_of_scan.c
+++ b/arch/powerpc/kernel/pci_of_scan.c
@@ -211,19 +211,19 @@ void of_scan_pci_bridge(struct pci_dev *dev)
unsigned int flags;
u64 size;
- pr_debug("of_scan_pci_bridge(%s)\n", node->full_name);
+ pr_debug("of_scan_pci_bridge(%pOF)\n", node);
/* parse bus-range property */
busrange = of_get_property(node, "bus-range", &len);
if (busrange == NULL || len != 8) {
- printk(KERN_DEBUG "Can't get bus-range for PCI-PCI bridge %s\n",
- node->full_name);
+ printk(KERN_DEBUG "Can't get bus-range for PCI-PCI bridge %pOF\n",
+ node);
return;
}
ranges = of_get_property(node, "ranges", &len);
if (ranges == NULL) {
- printk(KERN_DEBUG "Can't get ranges for PCI-PCI bridge %s\n",
- node->full_name);
+ printk(KERN_DEBUG "Can't get ranges for PCI-PCI bridge %pOF\n",
+ node);
return;
}
@@ -233,8 +233,8 @@ void of_scan_pci_bridge(struct pci_dev *dev)
bus = pci_add_new_bus(dev->bus, dev,
of_read_number(busrange, 1));
if (!bus) {
- printk(KERN_ERR "Failed to create pci bus for %s\n",
- node->full_name);
+ printk(KERN_ERR "Failed to create pci bus for %pOF\n",
+ node);
return;
}
}
@@ -262,13 +262,13 @@ void of_scan_pci_bridge(struct pci_dev *dev)
res = bus->resource[0];
if (res->flags) {
printk(KERN_ERR "PCI: ignoring extra I/O range"
- " for bridge %s\n", node->full_name);
+ " for bridge %pOF\n", node);
continue;
}
} else {
if (i >= PCI_NUM_RESOURCES - PCI_BRIDGE_RESOURCES) {
printk(KERN_ERR "PCI: too many memory ranges"
- " for bridge %s\n", node->full_name);
+ " for bridge %pOF\n", node);
continue;
}
res = bus->resource[i];
@@ -307,7 +307,7 @@ static struct pci_dev *of_scan_pci_dev(struct pci_bus *bus,
struct eeh_dev *edev = pdn_to_eeh_dev(PCI_DN(dn));
#endif
- pr_debug(" * %s\n", dn->full_name);
+ pr_debug(" * %pOF\n", dn);
if (!of_device_is_available(dn))
return NULL;
@@ -350,8 +350,8 @@ static void __of_scan_bus(struct device_node *node, struct pci_bus *bus,
struct device_node *child;
struct pci_dev *dev;
- pr_debug("of_scan_bus(%s) bus no %d...\n",
- node->full_name, bus->number);
+ pr_debug("of_scan_bus(%pOF) bus no %d...\n",
+ node, bus->number);
/* Scan direct children */
for_each_child_of_node(node, child) {
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 2ad725ef4368..a0c74bbf3454 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -230,7 +230,8 @@ void enable_kernel_fp(void)
}
EXPORT_SYMBOL(enable_kernel_fp);
-static int restore_fp(struct task_struct *tsk) {
+static int restore_fp(struct task_struct *tsk)
+{
if (tsk->thread.load_fp || msr_tm_active(tsk->thread.regs->msr)) {
load_fp_state(&current->thread.fp_state);
current->thread.load_fp++;
@@ -330,11 +331,19 @@ static inline int restore_altivec(struct task_struct *tsk) { return 0; }
#ifdef CONFIG_VSX
static void __giveup_vsx(struct task_struct *tsk)
{
- if (tsk->thread.regs->msr & MSR_FP)
+ unsigned long msr = tsk->thread.regs->msr;
+
+ /*
+ * We should never be ssetting MSR_VSX without also setting
+ * MSR_FP and MSR_VEC
+ */
+ WARN_ON((msr & MSR_VSX) && !((msr & MSR_FP) && (msr & MSR_VEC)));
+
+ /* __giveup_fpu will clear MSR_VSX */
+ if (msr & MSR_FP)
__giveup_fpu(tsk);
- if (tsk->thread.regs->msr & MSR_VEC)
+ if (msr & MSR_VEC)
__giveup_altivec(tsk);
- tsk->thread.regs->msr &= ~MSR_VSX;
}
static void giveup_vsx(struct task_struct *tsk)
@@ -346,14 +355,6 @@ static void giveup_vsx(struct task_struct *tsk)
msr_check_and_clear(MSR_FP|MSR_VEC|MSR_VSX);
}
-static void save_vsx(struct task_struct *tsk)
-{
- if (tsk->thread.regs->msr & MSR_FP)
- save_fpu(tsk);
- if (tsk->thread.regs->msr & MSR_VEC)
- save_altivec(tsk);
-}
-
void enable_kernel_vsx(void)
{
unsigned long cpumsr;
@@ -362,7 +363,8 @@ void enable_kernel_vsx(void)
cpumsr = msr_check_and_set(MSR_FP|MSR_VEC|MSR_VSX);
- if (current->thread.regs && (current->thread.regs->msr & MSR_VSX)) {
+ if (current->thread.regs &&
+ (current->thread.regs->msr & (MSR_VSX|MSR_VEC|MSR_FP))) {
check_if_tm_restore_required(current);
/*
* If a thread has already been reclaimed then the
@@ -373,10 +375,6 @@ void enable_kernel_vsx(void)
*/
if(!msr_tm_active(cpumsr) && msr_tm_active(current->thread.regs->msr))
return;
- if (current->thread.regs->msr & MSR_FP)
- __giveup_fpu(current);
- if (current->thread.regs->msr & MSR_VEC)
- __giveup_altivec(current);
__giveup_vsx(current);
}
}
@@ -386,7 +384,7 @@ void flush_vsx_to_thread(struct task_struct *tsk)
{
if (tsk->thread.regs) {
preempt_disable();
- if (tsk->thread.regs->msr & MSR_VSX) {
+ if (tsk->thread.regs->msr & (MSR_VSX|MSR_VEC|MSR_FP)) {
BUG_ON(tsk != current);
giveup_vsx(tsk);
}
@@ -406,7 +404,6 @@ static int restore_vsx(struct task_struct *tsk)
}
#else
static inline int restore_vsx(struct task_struct *tsk) { return 0; }
-static inline void save_vsx(struct task_struct *tsk) { }
#endif /* CONFIG_VSX */
#ifdef CONFIG_SPE
@@ -486,6 +483,8 @@ void giveup_all(struct task_struct *tsk)
msr_check_and_set(msr_all_available);
check_if_tm_restore_required(tsk);
+ WARN_ON((usermsr & MSR_VSX) && !((usermsr & MSR_FP) && (usermsr & MSR_VEC)));
+
#ifdef CONFIG_PPC_FPU
if (usermsr & MSR_FP)
__giveup_fpu(tsk);
@@ -494,10 +493,6 @@ void giveup_all(struct task_struct *tsk)
if (usermsr & MSR_VEC)
__giveup_altivec(tsk);
#endif
-#ifdef CONFIG_VSX
- if (usermsr & MSR_VSX)
- __giveup_vsx(tsk);
-#endif
#ifdef CONFIG_SPE
if (usermsr & MSR_SPE)
__giveup_spe(tsk);
@@ -552,19 +547,13 @@ void save_all(struct task_struct *tsk)
msr_check_and_set(msr_all_available);
- /*
- * Saving the way the register space is in hardware, save_vsx boils
- * down to a save_fpu() and save_altivec()
- */
- if (usermsr & MSR_VSX) {
- save_vsx(tsk);
- } else {
- if (usermsr & MSR_FP)
- save_fpu(tsk);
+ WARN_ON((usermsr & MSR_VSX) && !((usermsr & MSR_FP) && (usermsr & MSR_VEC)));
- if (usermsr & MSR_VEC)
- save_altivec(tsk);
- }
+ if (usermsr & MSR_FP)
+ save_fpu(tsk);
+
+ if (usermsr & MSR_VEC)
+ save_altivec(tsk);
if (usermsr & MSR_SPE)
__giveup_spe(tsk);
@@ -1133,6 +1122,11 @@ static inline void restore_sprs(struct thread_struct *old_thread,
#endif
}
+#ifdef CONFIG_PPC_BOOK3S_64
+#define CP_SIZE 128
+static const u8 dummy_copy_buffer[CP_SIZE] __attribute__((aligned(CP_SIZE)));
+#endif
+
struct task_struct *__switch_to(struct task_struct *prev,
struct task_struct *new)
{
@@ -1195,12 +1189,14 @@ struct task_struct *__switch_to(struct task_struct *prev,
__switch_to_tm(prev, new);
- /*
- * We can't take a PMU exception inside _switch() since there is a
- * window where the kernel stack SLB and the kernel stack are out
- * of sync. Hard disable here.
- */
- hard_irq_disable();
+ if (!radix_enabled()) {
+ /*
+ * We can't take a PMU exception inside _switch() since there
+ * is a window where the kernel stack SLB and the kernel stack
+ * are out of sync. Hard disable here.
+ */
+ hard_irq_disable();
+ }
/*
* Call restore_sprs() before calling _switch(). If we move it after
@@ -1220,8 +1216,28 @@ struct task_struct *__switch_to(struct task_struct *prev,
batch->active = 1;
}
- if (current_thread_info()->task->thread.regs)
+ if (current_thread_info()->task->thread.regs) {
restore_math(current_thread_info()->task->thread.regs);
+
+ /*
+ * The copy-paste buffer can only store into foreign real
+ * addresses, so unprivileged processes can not see the
+ * data or use it in any way unless they have foreign real
+ * mappings. We don't have a VAS driver that allocates those
+ * yet, so no cpabort is required.
+ */
+ if (cpu_has_feature(CPU_FTR_POWER9_DD1)) {
+ /*
+ * DD1 allows paste into normal system memory, so we
+ * do an unpaired copy here to clear the buffer and
+ * prevent a covert channel being set up.
+ *
+ * cpabort is not used because it is quite expensive.
+ */
+ asm volatile(PPC_COPY(%0, %1)
+ : : "r"(dummy_copy_buffer), "r"(0));
+ }
+ }
#endif /* CONFIG_PPC_STD_MMU_64 */
return last;
@@ -1364,13 +1380,13 @@ void show_regs(struct pt_regs * regs)
show_regs_print_info(KERN_DEFAULT);
- printk("NIP: "REG" LR: "REG" CTR: "REG"\n",
+ printk("NIP: "REG" LR: "REG" CTR: "REG"\n",
regs->nip, regs->link, regs->ctr);
printk("REGS: %p TRAP: %04lx %s (%s)\n",
regs, regs->trap, print_tainted(), init_utsname()->release);
- printk("MSR: "REG" ", regs->msr);
+ printk("MSR: "REG" ", regs->msr);
print_msr_bits(regs->msr);
- printk(" CR: %08lx XER: %08lx\n", regs->ccr, regs->xer);
+ pr_cont(" CR: %08lx XER: %08lx\n", regs->ccr, regs->xer);
trap = TRAP(regs);
if ((regs->trap != 0xc00) && cpu_has_feature(CPU_FTR_CFAR))
pr_cont("CFAR: "REG" ", regs->orig_gpr3);
@@ -1963,11 +1979,25 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
void notrace __ppc64_runlatch_on(void)
{
struct thread_info *ti = current_thread_info();
- unsigned long ctrl;
- ctrl = mfspr(SPRN_CTRLF);
- ctrl |= CTRL_RUNLATCH;
- mtspr(SPRN_CTRLT, ctrl);
+ if (cpu_has_feature(CPU_FTR_ARCH_206)) {
+ /*
+ * Least significant bit (RUN) is the only writable bit of
+ * the CTRL register, so we can avoid mfspr. 2.06 is not the
+ * earliest ISA where this is the case, but it's convenient.
+ */
+ mtspr(SPRN_CTRLT, CTRL_RUNLATCH);
+ } else {
+ unsigned long ctrl;
+
+ /*
+ * Some architectures (e.g., Cell) have writable fields other
+ * than RUN, so do the read-modify-write.
+ */
+ ctrl = mfspr(SPRN_CTRLF);
+ ctrl |= CTRL_RUNLATCH;
+ mtspr(SPRN_CTRLT, ctrl);
+ }
ti->local_flags |= _TLF_RUNLATCH;
}
@@ -1976,13 +2006,18 @@ void notrace __ppc64_runlatch_on(void)
void notrace __ppc64_runlatch_off(void)
{
struct thread_info *ti = current_thread_info();
- unsigned long ctrl;
ti->local_flags &= ~_TLF_RUNLATCH;
- ctrl = mfspr(SPRN_CTRLF);
- ctrl &= ~CTRL_RUNLATCH;
- mtspr(SPRN_CTRLT, ctrl);
+ if (cpu_has_feature(CPU_FTR_ARCH_206)) {
+ mtspr(SPRN_CTRLT, 0);
+ } else {
+ unsigned long ctrl;
+
+ ctrl = mfspr(SPRN_CTRLF);
+ ctrl &= ~CTRL_RUNLATCH;
+ mtspr(SPRN_CTRLT, ctrl);
+ }
}
#endif /* CONFIG_PPC64 */
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index dd8a04f3053a..02190e90c7ae 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -15,6 +15,9 @@
#undef DEBUG_PROM
+/* we cannot use FORTIFY as it brings in new symbols */
+#define __NO_FORTIFY
+
#include <stdarg.h>
#include <linux/kernel.h>
#include <linux/string.h>
@@ -174,6 +177,7 @@ struct platform_support {
bool hash_mmu;
bool radix_mmu;
bool radix_gtse;
+ bool xive;
};
/* Platforms codes are now obsolete in the kernel. Now only used within this
@@ -1038,6 +1042,27 @@ static void __init prom_parse_mmu_model(u8 val,
}
}
+static void __init prom_parse_xive_model(u8 val,
+ struct platform_support *support)
+{
+ switch (val) {
+ case OV5_FEAT(OV5_XIVE_EITHER): /* Either Available */
+ prom_debug("XIVE - either mode supported\n");
+ support->xive = true;
+ break;
+ case OV5_FEAT(OV5_XIVE_EXPLOIT): /* Only Exploitation mode */
+ prom_debug("XIVE - exploitation mode supported\n");
+ support->xive = true;
+ break;
+ case OV5_FEAT(OV5_XIVE_LEGACY): /* Only Legacy mode */
+ prom_debug("XIVE - legacy mode supported\n");
+ break;
+ default:
+ prom_debug("Unknown xive support option: 0x%x\n", val);
+ break;
+ }
+}
+
static void __init prom_parse_platform_support(u8 index, u8 val,
struct platform_support *support)
{
@@ -1051,6 +1076,10 @@ static void __init prom_parse_platform_support(u8 index, u8 val,
support->radix_gtse = true;
}
break;
+ case OV5_INDX(OV5_XIVE_SUPPORT): /* Interrupt mode */
+ prom_parse_xive_model(val & OV5_FEAT(OV5_XIVE_SUPPORT),
+ support);
+ break;
}
}
@@ -1059,7 +1088,8 @@ static void __init prom_check_platform_support(void)
struct platform_support supported = {
.hash_mmu = false,
.radix_mmu = false,
- .radix_gtse = false
+ .radix_gtse = false,
+ .xive = false
};
int prop_len = prom_getproplen(prom.chosen,
"ibm,arch-vec-5-platform-support");
@@ -1092,6 +1122,11 @@ static void __init prom_check_platform_support(void)
/* We're probably on a legacy hypervisor */
prom_debug("Assuming legacy hash support\n");
}
+
+ if (supported.xive) {
+ prom_debug("Asking for XIVE\n");
+ ibm_architecture_vec.vec5.intarch = OV5_FEAT(OV5_XIVE_EXPLOIT);
+ }
}
static void __init prom_send_capabilities(void)
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 925a4ef90559..f52ad5bb7109 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -127,12 +127,19 @@ static void flush_tmregs_to_thread(struct task_struct *tsk)
* If task is not current, it will have been flushed already to
* it's thread_struct during __switch_to().
*
- * A reclaim flushes ALL the state.
+ * A reclaim flushes ALL the state or if not in TM save TM SPRs
+ * in the appropriate thread structures from live.
*/
- if (tsk == current && MSR_TM_SUSPENDED(mfmsr()))
- tm_reclaim_current(TM_CAUSE_SIGNAL);
+ if ((!cpu_has_feature(CPU_FTR_TM)) || (tsk != current))
+ return;
+ if (MSR_TM_SUSPENDED(mfmsr())) {
+ tm_reclaim_current(TM_CAUSE_SIGNAL);
+ } else {
+ tm_enable();
+ tm_save_sprs(&(tsk->thread));
+ }
}
#else
static inline void flush_tmregs_to_thread(struct task_struct *tsk) { }
@@ -1587,11 +1594,8 @@ static int ppr_get(struct task_struct *target,
unsigned int pos, unsigned int count,
void *kbuf, void __user *ubuf)
{
- int ret;
-
- ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
- &target->thread.ppr, 0, sizeof(u64));
- return ret;
+ return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+ &target->thread.ppr, 0, sizeof(u64));
}
static int ppr_set(struct task_struct *target,
@@ -1599,11 +1603,8 @@ static int ppr_set(struct task_struct *target,
unsigned int pos, unsigned int count,
const void *kbuf, const void __user *ubuf)
{
- int ret;
-
- ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
- &target->thread.ppr, 0, sizeof(u64));
- return ret;
+ return user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+ &target->thread.ppr, 0, sizeof(u64));
}
static int dscr_get(struct task_struct *target,
@@ -1611,22 +1612,16 @@ static int dscr_get(struct task_struct *target,
unsigned int pos, unsigned int count,
void *kbuf, void __user *ubuf)
{
- int ret;
-
- ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
- &target->thread.dscr, 0, sizeof(u64));
- return ret;
+ return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+ &target->thread.dscr, 0, sizeof(u64));
}
static int dscr_set(struct task_struct *target,
const struct user_regset *regset,
unsigned int pos, unsigned int count,
const void *kbuf, const void __user *ubuf)
{
- int ret;
-
- ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
- &target->thread.dscr, 0, sizeof(u64));
- return ret;
+ return user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+ &target->thread.dscr, 0, sizeof(u64));
}
#endif
#ifdef CONFIG_PPC_BOOK3S_64
@@ -1635,22 +1630,16 @@ static int tar_get(struct task_struct *target,
unsigned int pos, unsigned int count,
void *kbuf, void __user *ubuf)
{
- int ret;
-
- ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
- &target->thread.tar, 0, sizeof(u64));
- return ret;
+ return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+ &target->thread.tar, 0, sizeof(u64));
}
static int tar_set(struct task_struct *target,
const struct user_regset *regset,
unsigned int pos, unsigned int count,
const void *kbuf, const void __user *ubuf)
{
- int ret;
-
- ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
- &target->thread.tar, 0, sizeof(u64));
- return ret;
+ return user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+ &target->thread.tar, 0, sizeof(u64));
}
static int ebb_active(struct task_struct *target,
diff --git a/arch/powerpc/kernel/reloc_64.S b/arch/powerpc/kernel/reloc_64.S
index d88736fbece6..e8cfc69f59ae 100644
--- a/arch/powerpc/kernel/reloc_64.S
+++ b/arch/powerpc/kernel/reloc_64.S
@@ -82,7 +82,7 @@ _GLOBAL(relocate)
6: blr
.balign 8
-p_dyn: .llong __dynamic_start - 0b
-p_rela: .llong __rela_dyn_start - 0b
-p_st: .llong _stext - 0b
+p_dyn: .8byte __dynamic_start - 0b
+p_rela: .8byte __rela_dyn_start - 0b
+p_st: .8byte _stext - 0b
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index b8a4987f58cf..1643e9e53655 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -914,7 +914,7 @@ int rtas_online_cpus_mask(cpumask_var_t cpus)
if (ret) {
cpumask_var_t tmp_mask;
- if (!alloc_cpumask_var(&tmp_mask, GFP_TEMPORARY))
+ if (!alloc_cpumask_var(&tmp_mask, GFP_KERNEL))
return ret;
/* Use tmp_mask to preserve cpus mask from first failure */
@@ -962,7 +962,7 @@ int rtas_ibm_suspend_me(u64 handle)
return -EIO;
}
- if (!alloc_cpumask_var(&offline_mask, GFP_TEMPORARY))
+ if (!alloc_cpumask_var(&offline_mask, GFP_KERNEL))
return -ENOMEM;
atomic_set(&data.working, 0);
diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index 73f1934582c2..c2b148b1634a 100644
--- a/arch/powerpc/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -91,26 +91,14 @@ static int rtas_pci_read_config(struct pci_bus *bus,
unsigned int devfn,
int where, int size, u32 *val)
{
- struct device_node *busdn, *dn;
struct pci_dn *pdn;
- bool found = false;
int ret;
- /* Search only direct children of the bus */
*val = 0xFFFFFFFF;
- busdn = pci_bus_to_OF_node(bus);
- for (dn = busdn->child; dn; dn = dn->sibling) {
- pdn = PCI_DN(dn);
- if (pdn && pdn->devfn == devfn
- && of_device_is_available(dn)) {
- found = true;
- break;
- }
- }
- if (!found)
- return PCIBIOS_DEVICE_NOT_FOUND;
+ pdn = pci_get_pdn_by_devfn(bus, devfn);
+ /* Validity of pdn is checked in here */
ret = rtas_read_config(pdn, where, size, val);
if (*val == EEH_IO_ERROR_VALUE(size) &&
eeh_dev_check_failure(pdn_to_eeh_dev(pdn)))
@@ -153,24 +141,11 @@ static int rtas_pci_write_config(struct pci_bus *bus,
unsigned int devfn,
int where, int size, u32 val)
{
- struct device_node *busdn, *dn;
struct pci_dn *pdn;
- bool found = false;
-
- /* Search only direct children of the bus */
- busdn = pci_bus_to_OF_node(bus);
- for (dn = busdn->child; dn; dn = dn->sibling) {
- pdn = PCI_DN(dn);
- if (pdn && pdn->devfn == devfn
- && of_device_is_available(dn)) {
- found = true;
- break;
- }
- }
- if (!found)
- return PCIBIOS_DEVICE_NOT_FOUND;
+ pdn = pci_get_pdn_by_devfn(bus, devfn);
+ /* Validity of pdn is checked in here. */
return rtas_write_config(pdn, where, size, val);
}
diff --git a/arch/powerpc/kernel/rtasd.c b/arch/powerpc/kernel/rtasd.c
index 3650732639ed..0f0b1b2f3b60 100644
--- a/arch/powerpc/kernel/rtasd.c
+++ b/arch/powerpc/kernel/rtasd.c
@@ -283,7 +283,7 @@ static void prrn_work_fn(struct work_struct *work)
* the RTAS event.
*/
pseries_devicetree_update(-prrn_update_scope);
- arch_update_cpu_topology();
+ numa_update_cpu_topology(false);
}
static DECLARE_WORK(prrn_work, prrn_work_fn);
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 857129acf960..2e3bc16d02b2 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -335,6 +335,10 @@ static int show_cpuinfo(struct seq_file *m, void *v)
maj = ((pvr >> 8) & 0xFF) - 1;
min = pvr & 0xFF;
break;
+ case 0x004e: /* POWER9 bits 12-15 give chip type */
+ maj = (pvr >> 8) & 0x0F;
+ min = pvr & 0xFF;
+ break;
default:
maj = (pvr >> 8) & 0xFF;
min = pvr & 0xFF;
@@ -477,7 +481,7 @@ void __init smp_setup_cpu_maps(void)
__be32 cpu_be;
int j, len;
- DBG(" * %s...\n", dn->full_name);
+ DBG(" * %pOF...\n", dn);
intserv = of_get_property(dn, "ibm,ppc-interrupt-server#s",
&len);
@@ -547,7 +551,7 @@ void __init smp_setup_cpu_maps(void)
if (maxcpus > nr_cpu_ids) {
printk(KERN_WARNING
"Partition configured for %d cpus, "
- "operating system maximum is %d.\n",
+ "operating system maximum is %u.\n",
maxcpus, nr_cpu_ids);
maxcpus = nr_cpu_ids;
} else
@@ -700,30 +704,6 @@ int check_legacy_ioport(unsigned long base_port)
}
EXPORT_SYMBOL(check_legacy_ioport);
-static int ppc_panic_event(struct notifier_block *this,
- unsigned long event, void *ptr)
-{
- /*
- * If firmware-assisted dump has been registered then trigger
- * firmware-assisted dump and let firmware handle everything else.
- */
- crash_fadump(NULL, ptr);
- ppc_md.panic(ptr); /* May not return */
- return NOTIFY_DONE;
-}
-
-static struct notifier_block ppc_panic_block = {
- .notifier_call = ppc_panic_event,
- .priority = INT_MIN /* may not return; must be done last */
-};
-
-void __init setup_panic(void)
-{
- if (!ppc_md.panic)
- return;
- atomic_notifier_chain_register(&panic_notifier_list, &ppc_panic_block);
-}
-
#ifdef CONFIG_CHECK_CACHE_COHERENCY
/*
* For platforms that have configurable cache-coherency. This function
@@ -868,9 +848,6 @@ void __init setup_arch(char **cmdline_p)
/* Probe the machine type, establish ppc_md. */
probe_machine();
- /* Setup panic notifier if requested by the platform. */
- setup_panic();
-
/*
* Configure ppc_md.power_save (ppc32 only, 64-bit machines do
* it from their respective probe() function.
@@ -912,13 +889,6 @@ void __init setup_arch(char **cmdline_p)
/* Reserve large chunks of memory for use by CMA for KVM. */
kvm_cma_reserve();
- /*
- * Reserve any gigantic pages requested on the command line.
- * memblock needs to have been initialized by the time this is
- * called since this will reserve memory.
- */
- reserve_hugetlb_gpages();
-
klp_init_thread_info(&init_thread_info);
init_mm.start_code = (unsigned long)_stext;
@@ -934,9 +904,6 @@ void __init setup_arch(char **cmdline_p)
#endif
#endif
-#ifdef CONFIG_PPC_64K_PAGES
- init_mm.context.pte_frag = NULL;
-#endif
#ifdef CONFIG_SPAPR_TCE_IOMMU
mm_iommu_init(&init_mm);
#endif
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 2f88f6cf1a42..51ebc01fff52 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -98,6 +98,9 @@ extern unsigned int memset_nocache_branch; /* Insn to be replaced by NOP */
notrace void __init machine_init(u64 dt_ptr)
{
+ unsigned int *addr = &memset_nocache_branch;
+ unsigned long insn;
+
/* Configure static keys first, now that we're relocated. */
setup_feature_keys();
@@ -105,7 +108,9 @@ notrace void __init machine_init(u64 dt_ptr)
udbg_early_init();
patch_instruction((unsigned int *)&memcpy, PPC_INST_NOP);
- patch_instruction(&memset_nocache_branch, PPC_INST_NOP);
+
+ insn = create_cond_branch(addr, branch_target(addr), 0x820000);
+ patch_instruction(addr, insn); /* replace b by bne cr0 */
/* Do some early initialization based on the flat device tree */
early_init_devtree(__va(dt_ptr));
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 4640f6d64f8b..b89c6aac48c9 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -564,6 +564,9 @@ static __init u64 safe_stack_limit(void)
/* Other BookE, we assume the first GB is bolted */
return 1ul << 30;
#else
+ if (early_radix_enabled())
+ return ULONG_MAX;
+
/* BookS, the first segment is bolted */
if (mmu_has_feature(MMU_FTR_1T_SEGMENT))
return 1UL << SID_SHIFT_1T;
@@ -578,7 +581,8 @@ void __init irqstack_early_init(void)
/*
* Interrupt stacks must be in the first segment since we
- * cannot afford to take SLB misses on them.
+ * cannot afford to take SLB misses on them. They are not
+ * accessed in realmode.
*/
for_each_possible_cpu(i) {
softirq_ctx[i] = (struct thread_info *)
@@ -649,8 +653,9 @@ void __init emergency_stack_init(void)
* aligned.
*
* Since we use these as temporary stacks during secondary CPU
- * bringup, we need to get at them in real mode. This means they
- * must also be within the RMO region.
+ * bringup, machine check, system reset, and HMI, we need to get
+ * at them in real mode. This means they must also be within the RMO
+ * region.
*
* The IRQ stacks allocated elsewhere in this file are zeroed and
* initialized in kernel/irq.c. These are initialized here in order
@@ -752,21 +757,30 @@ struct ppc_pci_io ppc_pci_io;
EXPORT_SYMBOL(ppc_pci_io);
#endif
-#ifdef CONFIG_HARDLOCKUP_DETECTOR
+#ifdef CONFIG_HARDLOCKUP_DETECTOR_PERF
u64 hw_nmi_get_sample_period(int watchdog_thresh)
{
return ppc_proc_freq * watchdog_thresh;
}
+#endif
/*
- * The hardlockup detector breaks PMU event based branches and is likely
- * to get false positives in KVM guests, so disable it by default.
+ * The perf based hardlockup detector breaks PMU event based branches, so
+ * disable it by default. Book3S has a soft-nmi hardlockup detector based
+ * on the decrementer interrupt, so it does not suffer from this problem.
+ *
+ * It is likely to get false positives in VM guests, so disable it there
+ * by default too.
*/
static int __init disable_hardlockup_detector(void)
{
+#ifdef CONFIG_HARDLOCKUP_DETECTOR_PERF
hardlockup_detector_disable();
+#else
+ if (firmware_has_feature(FW_FEATURE_LPAR))
+ hardlockup_detector_disable();
+#endif
return 0;
}
early_initcall(disable_hardlockup_detector);
-#endif
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 97bb1385e771..92fb1c8dbbd8 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -913,42 +913,40 @@ int copy_siginfo_to_user32(struct compat_siginfo __user *d, const siginfo_t *s)
*/
err = __put_user(s->si_signo, &d->si_signo);
err |= __put_user(s->si_errno, &d->si_errno);
- err |= __put_user((short)s->si_code, &d->si_code);
+ err |= __put_user(s->si_code, &d->si_code);
if (s->si_code < 0)
err |= __copy_to_user(&d->_sifields._pad, &s->_sifields._pad,
SI_PAD_SIZE32);
- else switch(s->si_code >> 16) {
- case __SI_CHLD >> 16:
+ else switch(siginfo_layout(s->si_signo, s->si_code)) {
+ case SIL_CHLD:
err |= __put_user(s->si_pid, &d->si_pid);
err |= __put_user(s->si_uid, &d->si_uid);
err |= __put_user(s->si_utime, &d->si_utime);
err |= __put_user(s->si_stime, &d->si_stime);
err |= __put_user(s->si_status, &d->si_status);
break;
- case __SI_FAULT >> 16:
+ case SIL_FAULT:
err |= __put_user((unsigned int)(unsigned long)s->si_addr,
&d->si_addr);
break;
- case __SI_POLL >> 16:
+ case SIL_POLL:
err |= __put_user(s->si_band, &d->si_band);
err |= __put_user(s->si_fd, &d->si_fd);
break;
- case __SI_TIMER >> 16:
+ case SIL_TIMER:
err |= __put_user(s->si_tid, &d->si_tid);
err |= __put_user(s->si_overrun, &d->si_overrun);
err |= __put_user(s->si_int, &d->si_int);
break;
- case __SI_SYS >> 16:
+ case SIL_SYS:
err |= __put_user(ptr_to_compat(s->si_call_addr), &d->si_call_addr);
err |= __put_user(s->si_syscall, &d->si_syscall);
err |= __put_user(s->si_arch, &d->si_arch);
break;
- case __SI_RT >> 16: /* This is not generated by the kernel as of now. */
- case __SI_MESGQ >> 16:
+ case SIL_RT:
err |= __put_user(s->si_int, &d->si_int);
/* fallthrough */
- case __SI_KILL >> 16:
- default:
+ case SIL_KILL:
err |= __put_user(s->si_pid, &d->si_pid);
err |= __put_user(s->si_uid, &d->si_uid);
break;
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index c83c115858c1..b2c002993d78 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -452,9 +452,20 @@ static long restore_tm_sigcontexts(struct task_struct *tsk,
if (MSR_TM_RESV(msr))
return -EINVAL;
- /* pull in MSR TM from user context */
+ /* pull in MSR TS bits from user context */
regs->msr = (regs->msr & ~MSR_TS_MASK) | (msr & MSR_TS_MASK);
+ /*
+ * Ensure that TM is enabled in regs->msr before we leave the signal
+ * handler. It could be the case that (a) user disabled the TM bit
+ * through the manipulation of the MSR bits in uc_mcontext or (b) the
+ * TM bit was disabled because a sufficient number of context switches
+ * happened whilst in the signal handler and load_tm overflowed,
+ * disabling the TM bit. In either case we can end up with an illegal
+ * TM state leading to a TM Bad Thing when we return to userspace.
+ */
+ regs->msr |= MSR_TM;
+
/* pull in MSR LE from user context */
regs->msr = (regs->msr & ~MSR_LE) | (msr & MSR_LE);
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index df2a41647d8e..e0a4c1f82e25 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -33,6 +33,7 @@
#include <linux/notifier.h>
#include <linux/topology.h>
#include <linux/profile.h>
+#include <linux/processor.h>
#include <asm/ptrace.h>
#include <linux/atomic.h>
@@ -74,9 +75,11 @@ static DEFINE_PER_CPU(int, cpu_state) = { 0 };
struct thread_info *secondary_ti;
DEFINE_PER_CPU(cpumask_var_t, cpu_sibling_map);
+DEFINE_PER_CPU(cpumask_var_t, cpu_l2_cache_map);
DEFINE_PER_CPU(cpumask_var_t, cpu_core_map);
EXPORT_PER_CPU_SYMBOL(cpu_sibling_map);
+EXPORT_PER_CPU_SYMBOL(cpu_l2_cache_map);
EXPORT_PER_CPU_SYMBOL(cpu_core_map);
/* SMP operations for this machine */
@@ -97,7 +100,7 @@ int smp_generic_cpu_bootable(unsigned int nr)
/* Special case - we inhibit secondary thread startup
* during boot if the user requests it.
*/
- if (system_state == SYSTEM_BOOTING && cpu_has_feature(CPU_FTR_SMT)) {
+ if (system_state < SYSTEM_RUNNING && cpu_has_feature(CPU_FTR_SMT)) {
if (!smt_enabled_at_boot && cpu_thread_in_core(nr) != 0)
return 0;
if (smt_enabled_at_boot
@@ -112,7 +115,8 @@ int smp_generic_cpu_bootable(unsigned int nr)
#ifdef CONFIG_PPC64
int smp_generic_kick_cpu(int nr)
{
- BUG_ON(nr < 0 || nr >= NR_CPUS);
+ if (nr < 0 || nr >= nr_cpu_ids)
+ return -EINVAL;
/*
* The processor is currently spinning, waiting for the
@@ -349,7 +353,7 @@ static void nmi_ipi_lock_start(unsigned long *flags)
hard_irq_disable();
while (atomic_cmpxchg(&__nmi_ipi_lock, 0, 1) == 1) {
raw_local_irq_restore(*flags);
- cpu_relax();
+ spin_until_cond(atomic_read(&__nmi_ipi_lock) == 0);
raw_local_irq_save(*flags);
hard_irq_disable();
}
@@ -358,7 +362,7 @@ static void nmi_ipi_lock_start(unsigned long *flags)
static void nmi_ipi_lock(void)
{
while (atomic_cmpxchg(&__nmi_ipi_lock, 0, 1) == 1)
- cpu_relax();
+ spin_until_cond(atomic_read(&__nmi_ipi_lock) == 0);
}
static void nmi_ipi_unlock(void)
@@ -433,13 +437,31 @@ static void do_smp_send_nmi_ipi(int cpu)
}
}
+void smp_flush_nmi_ipi(u64 delay_us)
+{
+ unsigned long flags;
+
+ nmi_ipi_lock_start(&flags);
+ while (nmi_ipi_busy_count) {
+ nmi_ipi_unlock_end(&flags);
+ udelay(1);
+ if (delay_us) {
+ delay_us--;
+ if (!delay_us)
+ return;
+ }
+ nmi_ipi_lock_start(&flags);
+ }
+ nmi_ipi_unlock_end(&flags);
+}
+
/*
* - cpu is the target CPU (must not be this CPU), or NMI_IPI_ALL_OTHERS.
* - fn is the target callback function.
* - delay_us > 0 is the delay before giving up waiting for targets to
* enter the handler, == 0 specifies indefinite delay.
*/
-static int smp_send_nmi_ipi(int cpu, void (*fn)(struct pt_regs *), u64 delay_us)
+int smp_send_nmi_ipi(int cpu, void (*fn)(struct pt_regs *), u64 delay_us)
{
unsigned long flags;
int me = raw_smp_processor_id();
@@ -455,7 +477,7 @@ static int smp_send_nmi_ipi(int cpu, void (*fn)(struct pt_regs *), u64 delay_us)
nmi_ipi_lock_start(&flags);
while (nmi_ipi_busy_count) {
nmi_ipi_unlock_end(&flags);
- cpu_relax();
+ spin_until_cond(nmi_ipi_busy_count == 0);
nmi_ipi_lock_start(&flags);
}
@@ -551,6 +573,26 @@ static void smp_store_cpu_info(int id)
#endif
}
+/*
+ * Relationships between CPUs are maintained in a set of per-cpu cpumasks so
+ * rather than just passing around the cpumask we pass around a function that
+ * returns the that cpumask for the given CPU.
+ */
+static void set_cpus_related(int i, int j, struct cpumask *(*get_cpumask)(int))
+{
+ cpumask_set_cpu(i, get_cpumask(j));
+ cpumask_set_cpu(j, get_cpumask(i));
+}
+
+#ifdef CONFIG_HOTPLUG_CPU
+static void set_cpus_unrelated(int i, int j,
+ struct cpumask *(*get_cpumask)(int))
+{
+ cpumask_clear_cpu(i, get_cpumask(j));
+ cpumask_clear_cpu(j, get_cpumask(i));
+}
+#endif
+
void __init smp_prepare_cpus(unsigned int max_cpus)
{
unsigned int cpu;
@@ -570,6 +612,8 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
for_each_possible_cpu(cpu) {
zalloc_cpumask_var_node(&per_cpu(cpu_sibling_map, cpu),
GFP_KERNEL, cpu_to_node(cpu));
+ zalloc_cpumask_var_node(&per_cpu(cpu_l2_cache_map, cpu),
+ GFP_KERNEL, cpu_to_node(cpu));
zalloc_cpumask_var_node(&per_cpu(cpu_core_map, cpu),
GFP_KERNEL, cpu_to_node(cpu));
/*
@@ -582,7 +626,9 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
}
}
+ /* Init the cpumasks so the boot CPU is related to itself */
cpumask_set_cpu(boot_cpuid, cpu_sibling_mask(boot_cpuid));
+ cpumask_set_cpu(boot_cpuid, cpu_l2_cache_mask(boot_cpuid));
cpumask_set_cpu(boot_cpuid, cpu_core_mask(boot_cpuid));
if (smp_ops && smp_ops->probe)
@@ -766,8 +812,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
smp_ops->give_timebase();
/* Wait until cpu puts itself in the online & active maps */
- while (!cpu_online(cpu))
- cpu_relax();
+ spin_until_cond(cpu_online(cpu));
return 0;
}
@@ -809,33 +854,6 @@ int cpu_first_thread_of_core(int core)
}
EXPORT_SYMBOL_GPL(cpu_first_thread_of_core);
-static void traverse_siblings_chip_id(int cpu, bool add, int chipid)
-{
- const struct cpumask *mask;
- struct device_node *np;
- int i, plen;
- const __be32 *prop;
-
- mask = add ? cpu_online_mask : cpu_present_mask;
- for_each_cpu(i, mask) {
- np = of_get_cpu_node(i, NULL);
- if (!np)
- continue;
- prop = of_get_property(np, "ibm,chip-id", &plen);
- if (prop && plen == sizeof(int) &&
- of_read_number(prop, 1) == chipid) {
- if (add) {
- cpumask_set_cpu(cpu, cpu_core_mask(i));
- cpumask_set_cpu(i, cpu_core_mask(cpu));
- } else {
- cpumask_clear_cpu(cpu, cpu_core_mask(i));
- cpumask_clear_cpu(i, cpu_core_mask(cpu));
- }
- }
- of_node_put(np);
- }
-}
-
/* Must be called when no change can occur to cpu_present_mask,
* i.e. during cpu online or offline.
*/
@@ -858,52 +876,93 @@ static struct device_node *cpu_to_l2cache(int cpu)
return cache;
}
-static void traverse_core_siblings(int cpu, bool add)
+static bool update_mask_by_l2(int cpu, struct cpumask *(*mask_fn)(int))
{
struct device_node *l2_cache, *np;
- const struct cpumask *mask;
- int i, chip, plen;
- const __be32 *prop;
-
- /* First see if we have ibm,chip-id properties in cpu nodes */
- np = of_get_cpu_node(cpu, NULL);
- if (np) {
- chip = -1;
- prop = of_get_property(np, "ibm,chip-id", &plen);
- if (prop && plen == sizeof(int))
- chip = of_read_number(prop, 1);
- of_node_put(np);
- if (chip >= 0) {
- traverse_siblings_chip_id(cpu, add, chip);
- return;
- }
- }
+ int i;
l2_cache = cpu_to_l2cache(cpu);
- mask = add ? cpu_online_mask : cpu_present_mask;
- for_each_cpu(i, mask) {
+ if (!l2_cache)
+ return false;
+
+ for_each_cpu(i, cpu_online_mask) {
+ /*
+ * when updating the marks the current CPU has not been marked
+ * online, but we need to update the cache masks
+ */
np = cpu_to_l2cache(i);
if (!np)
continue;
- if (np == l2_cache) {
- if (add) {
- cpumask_set_cpu(cpu, cpu_core_mask(i));
- cpumask_set_cpu(i, cpu_core_mask(cpu));
- } else {
- cpumask_clear_cpu(cpu, cpu_core_mask(i));
- cpumask_clear_cpu(i, cpu_core_mask(cpu));
- }
- }
+
+ if (np == l2_cache)
+ set_cpus_related(cpu, i, mask_fn);
+
of_node_put(np);
}
of_node_put(l2_cache);
+
+ return true;
}
+#ifdef CONFIG_HOTPLUG_CPU
+static void remove_cpu_from_masks(int cpu)
+{
+ int i;
+
+ /* NB: cpu_core_mask is a superset of the others */
+ for_each_cpu(i, cpu_core_mask(cpu)) {
+ set_cpus_unrelated(cpu, i, cpu_core_mask);
+ set_cpus_unrelated(cpu, i, cpu_l2_cache_mask);
+ set_cpus_unrelated(cpu, i, cpu_sibling_mask);
+ }
+}
+#endif
+
+static void add_cpu_to_masks(int cpu)
+{
+ int first_thread = cpu_first_thread_sibling(cpu);
+ int chipid = cpu_to_chip_id(cpu);
+ int i;
+
+ /*
+ * This CPU will not be in the online mask yet so we need to manually
+ * add it to it's own thread sibling mask.
+ */
+ cpumask_set_cpu(cpu, cpu_sibling_mask(cpu));
+
+ for (i = first_thread; i < first_thread + threads_per_core; i++)
+ if (cpu_online(i))
+ set_cpus_related(i, cpu, cpu_sibling_mask);
+
+ /*
+ * Copy the thread sibling mask into the cache sibling mask
+ * and mark any CPUs that share an L2 with this CPU.
+ */
+ for_each_cpu(i, cpu_sibling_mask(cpu))
+ set_cpus_related(cpu, i, cpu_l2_cache_mask);
+ update_mask_by_l2(cpu, cpu_l2_cache_mask);
+
+ /*
+ * Copy the cache sibling mask into core sibling mask and mark
+ * any CPUs on the same chip as this CPU.
+ */
+ for_each_cpu(i, cpu_l2_cache_mask(cpu))
+ set_cpus_related(cpu, i, cpu_core_mask);
+
+ if (chipid == -1)
+ return;
+
+ for_each_cpu(i, cpu_online_mask)
+ if (cpu_to_chip_id(i) == chipid)
+ set_cpus_related(cpu, i, cpu_core_mask);
+}
+
+static bool shared_caches;
+
/* Activate a secondary processor. */
void start_secondary(void *unused)
{
unsigned int cpu = smp_processor_id();
- int i, base;
mmgrab(&init_mm);
current->active_mm = &init_mm;
@@ -926,22 +985,15 @@ void start_secondary(void *unused)
vdso_getcpu_init();
#endif
- /* Update sibling maps */
- base = cpu_first_thread_sibling(cpu);
- for (i = 0; i < threads_per_core; i++) {
- if (cpu_is_offline(base + i) && (cpu != base + i))
- continue;
- cpumask_set_cpu(cpu, cpu_sibling_mask(base + i));
- cpumask_set_cpu(base + i, cpu_sibling_mask(cpu));
+ /* Update topology CPU masks */
+ add_cpu_to_masks(cpu);
- /* cpu_core_map should be a superset of
- * cpu_sibling_map even if we don't have cache
- * information, so update the former here, too.
- */
- cpumask_set_cpu(cpu, cpu_core_mask(base + i));
- cpumask_set_cpu(base + i, cpu_core_mask(cpu));
- }
- traverse_core_siblings(cpu, true);
+ /*
+ * Check for any shared caches. Note that this must be done on a
+ * per-core basis because one core in the pair might be disabled.
+ */
+ if (!cpumask_equal(cpu_l2_cache_mask(cpu), cpu_sibling_mask(cpu)))
+ shared_caches = true;
set_numa_node(numa_cpu_lookup_table[cpu]);
set_numa_mem(local_memory_node(numa_cpu_lookup_table[cpu]));
@@ -984,35 +1036,65 @@ static struct sched_domain_topology_level powerpc_topology[] = {
{ NULL, },
};
-static __init long smp_setup_cpu_workfn(void *data __always_unused)
+/*
+ * P9 has a slightly odd architecture where pairs of cores share an L2 cache.
+ * This topology makes it *much* cheaper to migrate tasks between adjacent cores
+ * since the migrated task remains cache hot. We want to take advantage of this
+ * at the scheduler level so an extra topology level is required.
+ */
+static int powerpc_shared_cache_flags(void)
{
- smp_ops->setup_cpu(boot_cpuid);
- return 0;
+ return SD_SHARE_PKG_RESOURCES;
+}
+
+/*
+ * We can't just pass cpu_l2_cache_mask() directly because
+ * returns a non-const pointer and the compiler barfs on that.
+ */
+static const struct cpumask *shared_cache_mask(int cpu)
+{
+ return cpu_l2_cache_mask(cpu);
}
+static struct sched_domain_topology_level power9_topology[] = {
+#ifdef CONFIG_SCHED_SMT
+ { cpu_smt_mask, powerpc_smt_flags, SD_INIT_NAME(SMT) },
+#endif
+ { shared_cache_mask, powerpc_shared_cache_flags, SD_INIT_NAME(CACHE) },
+ { cpu_cpu_mask, SD_INIT_NAME(DIE) },
+ { NULL, },
+};
+
void __init smp_cpus_done(unsigned int max_cpus)
{
/*
- * We want the setup_cpu() here to be called on the boot CPU, but
- * init might run on any CPU, so make sure it's invoked on the boot
- * CPU.
+ * We are running pinned to the boot CPU, see rest_init().
*/
if (smp_ops && smp_ops->setup_cpu)
- work_on_cpu_safe(boot_cpuid, smp_setup_cpu_workfn, NULL);
+ smp_ops->setup_cpu(boot_cpuid);
if (smp_ops && smp_ops->bringup_done)
smp_ops->bringup_done();
dump_numa_cpu_topology();
- set_sched_topology(powerpc_topology);
+ /*
+ * If any CPU detects that it's sharing a cache with another CPU then
+ * use the deeper topology that is aware of this sharing.
+ */
+ if (shared_caches) {
+ pr_info("Using shared cache scheduler topology\n");
+ set_sched_topology(power9_topology);
+ } else {
+ pr_info("Using standard scheduler topology\n");
+ set_sched_topology(powerpc_topology);
+ }
}
#ifdef CONFIG_HOTPLUG_CPU
int __cpu_disable(void)
{
int cpu = smp_processor_id();
- int base, i;
int err;
if (!smp_ops->cpu_disable)
@@ -1023,14 +1105,7 @@ int __cpu_disable(void)
return err;
/* Update sibling maps */
- base = cpu_first_thread_sibling(cpu);
- for (i = 0; i < threads_per_core && base + i < nr_cpu_ids; i++) {
- cpumask_clear_cpu(cpu, cpu_sibling_mask(base + i));
- cpumask_clear_cpu(base + i, cpu_sibling_mask(cpu));
- cpumask_clear_cpu(cpu, cpu_core_mask(base + i));
- cpumask_clear_cpu(base + i, cpu_core_mask(cpu));
- }
- traverse_core_siblings(cpu, false);
+ remove_cpu_from_masks(cpu);
return 0;
}
diff --git a/arch/powerpc/kernel/swsusp_asm64.S b/arch/powerpc/kernel/swsusp_asm64.S
index 988f38dced0f..82d8aae81c6a 100644
--- a/arch/powerpc/kernel/swsusp_asm64.S
+++ b/arch/powerpc/kernel/swsusp_asm64.S
@@ -179,7 +179,7 @@ nothing_to_copy:
sld r3, r3, r0
li r0, 0
1:
- dcbf r0,r3
+ dcbf 0,r3
addi r3,r3,0x20
bdnz 1b
diff --git a/arch/powerpc/kernel/systbl.S b/arch/powerpc/kernel/systbl.S
index 4d6b1d3a747f..7ccb7f81f8db 100644
--- a/arch/powerpc/kernel/systbl.S
+++ b/arch/powerpc/kernel/systbl.S
@@ -17,13 +17,13 @@
#include <asm/ppc_asm.h>
#ifdef CONFIG_PPC64
-#define SYSCALL(func) .llong DOTSYM(sys_##func),DOTSYM(sys_##func)
-#define COMPAT_SYS(func) .llong DOTSYM(sys_##func),DOTSYM(compat_sys_##func)
-#define PPC_SYS(func) .llong DOTSYM(ppc_##func),DOTSYM(ppc_##func)
-#define OLDSYS(func) .llong DOTSYM(sys_ni_syscall),DOTSYM(sys_ni_syscall)
-#define SYS32ONLY(func) .llong DOTSYM(sys_ni_syscall),DOTSYM(compat_sys_##func)
-#define PPC64ONLY(func) .llong DOTSYM(ppc_##func),DOTSYM(sys_ni_syscall)
-#define SYSX(f, f3264, f32) .llong DOTSYM(f),DOTSYM(f3264)
+#define SYSCALL(func) .8byte DOTSYM(sys_##func),DOTSYM(sys_##func)
+#define COMPAT_SYS(func) .8byte DOTSYM(sys_##func),DOTSYM(compat_sys_##func)
+#define PPC_SYS(func) .8byte DOTSYM(ppc_##func),DOTSYM(ppc_##func)
+#define OLDSYS(func) .8byte DOTSYM(sys_ni_syscall),DOTSYM(sys_ni_syscall)
+#define SYS32ONLY(func) .8byte DOTSYM(sys_ni_syscall),DOTSYM(compat_sys_##func)
+#define PPC64ONLY(func) .8byte DOTSYM(ppc_##func),DOTSYM(sys_ni_syscall)
+#define SYSX(f, f3264, f32) .8byte DOTSYM(f),DOTSYM(f3264)
#else
#define SYSCALL(func) .long sys_##func
#define COMPAT_SYS(func) .long sys_##func
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 2b33cfaac7b8..fe6f3a285455 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -59,10 +59,10 @@
#include <linux/suspend.h>
#include <linux/rtc.h>
#include <linux/sched/cputime.h>
+#include <linux/processor.h>
#include <asm/trace.h>
#include <asm/io.h>
-#include <asm/processor.h>
#include <asm/nvram.h>
#include <asm/cache.h>
#include <asm/machdep.h>
@@ -442,6 +442,7 @@ void __delay(unsigned long loops)
unsigned long start;
int diff;
+ spin_begin();
if (__USE_RTC()) {
start = get_rtcl();
do {
@@ -449,13 +450,14 @@ void __delay(unsigned long loops)
diff = get_rtcl() - start;
if (diff < 0)
diff += 1000000000;
+ spin_cpu_relax();
} while (diff < loops);
} else {
start = get_tbl();
while (get_tbl() - start < loops)
- HMT_low();
- HMT_medium();
+ spin_cpu_relax();
}
+ spin_end();
}
EXPORT_SYMBOL(__delay);
@@ -675,7 +677,7 @@ EXPORT_SYMBOL_GPL(tb_to_ns);
* the high 64 bits of a * b, i.e. (a * b) >> 64, where a and b
* are 64-bit unsigned numbers.
*/
-unsigned long long sched_clock(void)
+notrace unsigned long long sched_clock(void)
{
if (__USE_RTC())
return get_rtc();
@@ -739,12 +741,20 @@ static int __init get_freq(char *name, int cells, unsigned long *val)
static void start_cpu_decrementer(void)
{
#if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
+ unsigned int tcr;
+
/* Clear any pending timer interrupts */
mtspr(SPRN_TSR, TSR_ENW | TSR_WIS | TSR_DIS | TSR_FIS);
- /* Enable decrementer interrupt */
- mtspr(SPRN_TCR, TCR_DIE);
-#endif /* defined(CONFIG_BOOKE) || defined(CONFIG_40x) */
+ tcr = mfspr(SPRN_TCR);
+ /*
+ * The watchdog may have already been enabled by u-boot. So leave
+ * TRC[WP] (Watchdog Period) alone.
+ */
+ tcr &= TCR_WP_MASK; /* Clear all bits except for TCR[WP] */
+ tcr |= TCR_DIE; /* Enable decrementer */
+ mtspr(SPRN_TCR, tcr);
+#endif
}
void __init generic_calibrate_decr(void)
@@ -823,38 +833,76 @@ void read_persistent_clock(struct timespec *ts)
}
/* clocksource code */
-static u64 rtc_read(struct clocksource *cs)
+static notrace u64 rtc_read(struct clocksource *cs)
{
return (u64)get_rtc();
}
-static u64 timebase_read(struct clocksource *cs)
+static notrace u64 timebase_read(struct clocksource *cs)
{
return (u64)get_tb();
}
-void update_vsyscall_old(struct timespec *wall_time, struct timespec *wtm,
- struct clocksource *clock, u32 mult, u64 cycle_last)
+
+void update_vsyscall(struct timekeeper *tk)
{
+ struct timespec xt;
+ struct clocksource *clock = tk->tkr_mono.clock;
+ u32 mult = tk->tkr_mono.mult;
+ u32 shift = tk->tkr_mono.shift;
+ u64 cycle_last = tk->tkr_mono.cycle_last;
u64 new_tb_to_xs, new_stamp_xsec;
- u32 frac_sec;
+ u64 frac_sec;
if (clock != &clocksource_timebase)
return;
+ xt.tv_sec = tk->xtime_sec;
+ xt.tv_nsec = (long)(tk->tkr_mono.xtime_nsec >> tk->tkr_mono.shift);
+
/* Make userspace gettimeofday spin until we're done. */
++vdso_data->tb_update_count;
smp_mb();
- /* 19342813113834067 ~= 2^(20+64) / 1e9 */
- new_tb_to_xs = (u64) mult * (19342813113834067ULL >> clock->shift);
- new_stamp_xsec = (u64) wall_time->tv_nsec * XSEC_PER_SEC;
- do_div(new_stamp_xsec, 1000000000);
- new_stamp_xsec += (u64) wall_time->tv_sec * XSEC_PER_SEC;
+ /*
+ * This computes ((2^20 / 1e9) * mult) >> shift as a
+ * 0.64 fixed-point fraction.
+ * The computation in the else clause below won't overflow
+ * (as long as the timebase frequency is >= 1.049 MHz)
+ * but loses precision because we lose the low bits of the constant
+ * in the shift. Note that 19342813113834067 ~= 2^(20+64) / 1e9.
+ * For a shift of 24 the error is about 0.5e-9, or about 0.5ns
+ * over a second. (Shift values are usually 22, 23 or 24.)
+ * For high frequency clocks such as the 512MHz timebase clock
+ * on POWER[6789], the mult value is small (e.g. 32768000)
+ * and so we can shift the constant by 16 initially
+ * (295147905179 ~= 2^(20+64-16) / 1e9) and then do the
+ * remaining shifts after the multiplication, which gives a
+ * more accurate result (e.g. with mult = 32768000, shift = 24,
+ * the error is only about 1.2e-12, or 0.7ns over 10 minutes).
+ */
+ if (mult <= 62500000 && clock->shift >= 16)
+ new_tb_to_xs = ((u64) mult * 295147905179ULL) >> (clock->shift - 16);
+ else
+ new_tb_to_xs = (u64) mult * (19342813113834067ULL >> clock->shift);
+
+ /*
+ * Compute the fractional second in units of 2^-32 seconds.
+ * The fractional second is tk->tkr_mono.xtime_nsec >> tk->tkr_mono.shift
+ * in nanoseconds, so multiplying that by 2^32 / 1e9 gives
+ * it in units of 2^-32 seconds.
+ * We assume shift <= 32 because clocks_calc_mult_shift()
+ * generates shift values in the range 0 - 32.
+ */
+ frac_sec = tk->tkr_mono.xtime_nsec << (32 - shift);
+ do_div(frac_sec, NSEC_PER_SEC);
- BUG_ON(wall_time->tv_nsec >= NSEC_PER_SEC);
- /* this is tv_nsec / 1e9 as a 0.32 fraction */
- frac_sec = ((u64) wall_time->tv_nsec * 18446744073ULL) >> 32;
+ /*
+ * Work out new stamp_xsec value for any legacy users of systemcfg.
+ * stamp_xsec is in units of 2^-20 seconds.
+ */
+ new_stamp_xsec = frac_sec >> 12;
+ new_stamp_xsec += tk->xtime_sec * XSEC_PER_SEC;
/*
* tb_update_count is used to allow the userspace gettimeofday code
@@ -864,15 +912,13 @@ void update_vsyscall_old(struct timespec *wall_time, struct timespec *wtm,
* the two values of tb_update_count match and are even then the
* tb_to_xs and stamp_xsec values are consistent. If not, then it
* loops back and reads them again until this criteria is met.
- * We expect the caller to have done the first increment of
- * vdso_data->tb_update_count already.
*/
vdso_data->tb_orig_stamp = cycle_last;
vdso_data->stamp_xsec = new_stamp_xsec;
vdso_data->tb_to_xs = new_tb_to_xs;
- vdso_data->wtom_clock_sec = wtm->tv_sec;
- vdso_data->wtom_clock_nsec = wtm->tv_nsec;
- vdso_data->stamp_xtime = *wall_time;
+ vdso_data->wtom_clock_sec = tk->wall_to_monotonic.tv_sec;
+ vdso_data->wtom_clock_nsec = tk->wall_to_monotonic.tv_nsec;
+ vdso_data->stamp_xtime = xt;
vdso_data->stamp_sec_fraction = frac_sec;
smp_wmb();
++(vdso_data->tb_update_count);
diff --git a/arch/powerpc/kernel/tm.S b/arch/powerpc/kernel/tm.S
index 3a2d04134da9..c4ba37822ba0 100644
--- a/arch/powerpc/kernel/tm.S
+++ b/arch/powerpc/kernel/tm.S
@@ -313,8 +313,8 @@ dont_backup_fp:
blr
- /* void tm_recheckpoint(struct thread_struct *thread,
- * unsigned long orig_msr)
+ /* void __tm_recheckpoint(struct thread_struct *thread,
+ * unsigned long orig_msr)
* - Restore the checkpointed register state saved by tm_reclaim
* when we switch_to a process.
*
diff --git a/arch/powerpc/kernel/trace/ftrace_64_mprofile.S b/arch/powerpc/kernel/trace/ftrace_64_mprofile.S
index c98e90b4ea7b..b4e2b7165f79 100644
--- a/arch/powerpc/kernel/trace/ftrace_64_mprofile.S
+++ b/arch/powerpc/kernel/trace/ftrace_64_mprofile.S
@@ -181,34 +181,25 @@ _GLOBAL(ftrace_stub)
* - we have no stack frame and can not allocate one
* - LR points back to the original caller (in A)
* - CTR holds the new NIP in C
- * - r0 & r12 are free
- *
- * r0 can't be used as the base register for a DS-form load or store, so
- * we temporarily shuffle r1 (stack pointer) into r0 and then put it back.
+ * - r0, r11 & r12 are free
*/
livepatch_handler:
CURRENT_THREAD_INFO(r12, r1)
- /* Save stack pointer into r0 */
- mr r0, r1
-
/* Allocate 3 x 8 bytes */
- ld r1, TI_livepatch_sp(r12)
- addi r1, r1, 24
- std r1, TI_livepatch_sp(r12)
+ ld r11, TI_livepatch_sp(r12)
+ addi r11, r11, 24
+ std r11, TI_livepatch_sp(r12)
/* Save toc & real LR on livepatch stack */
- std r2, -24(r1)
+ std r2, -24(r11)
mflr r12
- std r12, -16(r1)
+ std r12, -16(r11)
/* Store stack end marker */
lis r12, STACK_END_MAGIC@h
ori r12, r12, STACK_END_MAGIC@l
- std r12, -8(r1)
-
- /* Restore real stack pointer */
- mr r1, r0
+ std r12, -8(r11)
/* Put ctr in r12 for global entry and branch there */
mfctr r12
@@ -216,36 +207,30 @@ livepatch_handler:
/*
* Now we are returning from the patched function to the original
- * caller A. We are free to use r0 and r12, and we can use r2 until we
+ * caller A. We are free to use r11, r12 and we can use r2 until we
* restore it.
*/
CURRENT_THREAD_INFO(r12, r1)
- /* Save stack pointer into r0 */
- mr r0, r1
-
- ld r1, TI_livepatch_sp(r12)
+ ld r11, TI_livepatch_sp(r12)
/* Check stack marker hasn't been trashed */
lis r2, STACK_END_MAGIC@h
ori r2, r2, STACK_END_MAGIC@l
- ld r12, -8(r1)
+ ld r12, -8(r11)
1: tdne r12, r2
EMIT_BUG_ENTRY 1b, __FILE__, __LINE__ - 1, 0
/* Restore LR & toc from livepatch stack */
- ld r12, -16(r1)
+ ld r12, -16(r11)
mtlr r12
- ld r2, -24(r1)
+ ld r2, -24(r11)
/* Pop livepatch stack frame */
- CURRENT_THREAD_INFO(r12, r0)
- subi r1, r1, 24
- std r1, TI_livepatch_sp(r12)
-
- /* Restore real stack pointer */
- mr r1, r0
+ CURRENT_THREAD_INFO(r12, r1)
+ subi r11, r11, 24
+ std r11, TI_livepatch_sp(r12)
/* Return to original caller of live patched function */
blr
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index d4e545d27ef9..13c9dcdcba69 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -114,6 +114,28 @@ static void pmac_backlight_unblank(void)
static inline void pmac_backlight_unblank(void) { }
#endif
+/*
+ * If oops/die is expected to crash the machine, return true here.
+ *
+ * This should not be expected to be 100% accurate, there may be
+ * notifiers registered or other unexpected conditions that may bring
+ * down the kernel. Or if the current process in the kernel is holding
+ * locks or has other critical state, the kernel may become effectively
+ * unusable anyway.
+ */
+bool die_will_crash(void)
+{
+ if (should_fadump_crash())
+ return true;
+ if (kexec_should_crash(current))
+ return true;
+ if (in_interrupt() || panic_on_oops ||
+ !current->pid || is_global_init(current))
+ return true;
+
+ return false;
+}
+
static arch_spinlock_t die_lock = __ARCH_SPIN_LOCK_UNLOCKED;
static int die_owner = -1;
static unsigned int die_nest_count;
@@ -162,21 +184,9 @@ static void oops_end(unsigned long flags, struct pt_regs *regs,
crash_fadump(regs, "die oops");
- /*
- * A system reset (0x100) is a request to dump, so we always send
- * it through the crashdump code.
- */
- if (kexec_should_crash(current) || (TRAP(regs) == 0x100)) {
+ if (kexec_should_crash(current))
crash_kexec(regs);
- /*
- * We aren't the primary crash CPU. We need to send it
- * to a holding pattern to avoid it ending up in the panic
- * code.
- */
- crash_kexec_secondary(regs);
- }
-
if (!signr)
return;
@@ -202,18 +212,25 @@ NOKPROBE_SYMBOL(oops_end);
static int __die(const char *str, struct pt_regs *regs, long err)
{
printk("Oops: %s, sig: %ld [#%d]\n", str, err, ++die_counter);
-#ifdef CONFIG_PREEMPT
- printk("PREEMPT ");
-#endif
-#ifdef CONFIG_SMP
- printk("SMP NR_CPUS=%d ", NR_CPUS);
-#endif
+
+ if (IS_ENABLED(CONFIG_CPU_LITTLE_ENDIAN))
+ printk("LE ");
+ else
+ printk("BE ");
+
+ if (IS_ENABLED(CONFIG_PREEMPT))
+ pr_cont("PREEMPT ");
+
+ if (IS_ENABLED(CONFIG_SMP))
+ pr_cont("SMP NR_CPUS=%d ", NR_CPUS);
+
if (debug_pagealloc_enabled())
- printk("DEBUG_PAGEALLOC ");
-#ifdef CONFIG_NUMA
- printk("NUMA ");
-#endif
- printk("%s\n", ppc_md.name ? ppc_md.name : "");
+ pr_cont("DEBUG_PAGEALLOC ");
+
+ if (IS_ENABLED(CONFIG_NUMA))
+ pr_cont("NUMA ");
+
+ pr_cont("%s\n", ppc_md.name ? ppc_md.name : "");
if (notify_die(DIE_OOPS, str, regs, err, 255, SIGSEGV) == NOTIFY_STOP)
return 1;
@@ -237,6 +254,7 @@ void die(const char *str, struct pt_regs *regs, long err)
err = 0;
oops_end(flags, regs, err);
}
+NOKPROBE_SYMBOL(die);
void user_single_step_siginfo(struct task_struct *tsk,
struct pt_regs *regs, siginfo_t *info)
@@ -287,23 +305,52 @@ void system_reset_exception(struct pt_regs *regs)
if (!nested)
nmi_enter();
+ __this_cpu_inc(irq_stat.sreset_irqs);
+
/* See if any machine dependent calls */
if (ppc_md.system_reset_exception) {
if (ppc_md.system_reset_exception(regs))
goto out;
}
- die("System Reset", regs, SIGABRT);
+ if (debugger(regs))
+ goto out;
+
+ /*
+ * A system reset is a request to dump, so we always send
+ * it through the crashdump code (if fadump or kdump are
+ * registered).
+ */
+ crash_fadump(regs, "System Reset");
+
+ crash_kexec(regs);
+
+ /*
+ * We aren't the primary crash CPU. We need to send it
+ * to a holding pattern to avoid it ending up in the panic
+ * code.
+ */
+ crash_kexec_secondary(regs);
+
+ /*
+ * No debugger or crash dump registered, print logs then
+ * panic.
+ */
+ __die("System Reset", regs, SIGABRT);
+
+ mdelay(2*MSEC_PER_SEC); /* Wait a little while for others to print */
+ add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);
+ nmi_panic(regs, "System Reset");
out:
#ifdef CONFIG_PPC_BOOK3S_64
BUG_ON(get_paca()->in_nmi == 0);
if (get_paca()->in_nmi > 1)
- panic("Unrecoverable nested System Reset");
+ nmi_panic(regs, "Unrecoverable nested System Reset");
#endif
/* Must die if the interrupt is not recoverable */
if (!(regs->msr & MSR_RI))
- panic("Unrecoverable System Reset");
+ nmi_panic(regs, "Unrecoverable System Reset");
if (!nested)
nmi_exit();
@@ -311,39 +358,6 @@ out:
/* What should we do here? We could issue a shutdown or hard reset. */
}
-#ifdef CONFIG_PPC64
-/*
- * This function is called in real mode. Strictly no printk's please.
- *
- * regs->nip and regs->msr contains srr0 and ssr1.
- */
-long machine_check_early(struct pt_regs *regs)
-{
- long handled = 0;
-
- __this_cpu_inc(irq_stat.mce_exceptions);
-
- if (cur_cpu_spec && cur_cpu_spec->machine_check_early)
- handled = cur_cpu_spec->machine_check_early(regs);
- return handled;
-}
-
-long hmi_exception_realmode(struct pt_regs *regs)
-{
- __this_cpu_inc(irq_stat.hmi_exceptions);
-
- wait_for_subcore_guest_exit();
-
- if (ppc_md.hmi_exception_early)
- ppc_md.hmi_exception_early(regs);
-
- wait_for_tb_resync();
-
- return 0;
-}
-
-#endif
-
/*
* I/O accesses can cause machine checks on powermacs.
* Check if the NIP corresponds to the address of a sync
@@ -396,11 +410,6 @@ static inline int check_io_access(struct pt_regs *regs)
/* On 4xx, the reason for the machine check or program exception
is in the ESR. */
#define get_reason(regs) ((regs)->dsisr)
-#ifndef CONFIG_FSL_BOOKE
-#define get_mc_reason(regs) ((regs)->dsisr)
-#else
-#define get_mc_reason(regs) (mfspr(SPRN_MCSR))
-#endif
#define REASON_FP ESR_FP
#define REASON_ILLEGAL (ESR_PIL | ESR_PUO)
#define REASON_PRIVILEGED ESR_PPR
@@ -414,111 +423,21 @@ static inline int check_io_access(struct pt_regs *regs)
/* On non-4xx, the reason for the machine check or program
exception is in the MSR. */
#define get_reason(regs) ((regs)->msr)
-#define get_mc_reason(regs) ((regs)->msr)
-#define REASON_TM 0x200000
-#define REASON_FP 0x100000
-#define REASON_ILLEGAL 0x80000
-#define REASON_PRIVILEGED 0x40000
-#define REASON_TRAP 0x20000
+#define REASON_TM SRR1_PROGTM
+#define REASON_FP SRR1_PROGFPE
+#define REASON_ILLEGAL SRR1_PROGILL
+#define REASON_PRIVILEGED SRR1_PROGPRIV
+#define REASON_TRAP SRR1_PROGTRAP
#define single_stepping(regs) ((regs)->msr & MSR_SE)
#define clear_single_step(regs) ((regs)->msr &= ~MSR_SE)
#endif
-#if defined(CONFIG_4xx)
-int machine_check_4xx(struct pt_regs *regs)
-{
- unsigned long reason = get_mc_reason(regs);
-
- if (reason & ESR_IMCP) {
- printk("Instruction");
- mtspr(SPRN_ESR, reason & ~ESR_IMCP);
- } else
- printk("Data");
- printk(" machine check in kernel mode.\n");
-
- return 0;
-}
-
-int machine_check_440A(struct pt_regs *regs)
-{
- unsigned long reason = get_mc_reason(regs);
-
- printk("Machine check in kernel mode.\n");
- if (reason & ESR_IMCP){
- printk("Instruction Synchronous Machine Check exception\n");
- mtspr(SPRN_ESR, reason & ~ESR_IMCP);
- }
- else {
- u32 mcsr = mfspr(SPRN_MCSR);
- if (mcsr & MCSR_IB)
- printk("Instruction Read PLB Error\n");
- if (mcsr & MCSR_DRB)
- printk("Data Read PLB Error\n");
- if (mcsr & MCSR_DWB)
- printk("Data Write PLB Error\n");
- if (mcsr & MCSR_TLBP)
- printk("TLB Parity Error\n");
- if (mcsr & MCSR_ICP){
- flush_instruction_cache();
- printk("I-Cache Parity Error\n");
- }
- if (mcsr & MCSR_DCSP)
- printk("D-Cache Search Parity Error\n");
- if (mcsr & MCSR_DCFP)
- printk("D-Cache Flush Parity Error\n");
- if (mcsr & MCSR_IMPE)
- printk("Machine Check exception is imprecise\n");
-
- /* Clear MCSR */
- mtspr(SPRN_MCSR, mcsr);
- }
- return 0;
-}
-
-int machine_check_47x(struct pt_regs *regs)
-{
- unsigned long reason = get_mc_reason(regs);
- u32 mcsr;
-
- printk(KERN_ERR "Machine check in kernel mode.\n");
- if (reason & ESR_IMCP) {
- printk(KERN_ERR
- "Instruction Synchronous Machine Check exception\n");
- mtspr(SPRN_ESR, reason & ~ESR_IMCP);
- return 0;
- }
- mcsr = mfspr(SPRN_MCSR);
- if (mcsr & MCSR_IB)
- printk(KERN_ERR "Instruction Read PLB Error\n");
- if (mcsr & MCSR_DRB)
- printk(KERN_ERR "Data Read PLB Error\n");
- if (mcsr & MCSR_DWB)
- printk(KERN_ERR "Data Write PLB Error\n");
- if (mcsr & MCSR_TLBP)
- printk(KERN_ERR "TLB Parity Error\n");
- if (mcsr & MCSR_ICP) {
- flush_instruction_cache();
- printk(KERN_ERR "I-Cache Parity Error\n");
- }
- if (mcsr & MCSR_DCSP)
- printk(KERN_ERR "D-Cache Search Parity Error\n");
- if (mcsr & PPC47x_MCSR_GPR)
- printk(KERN_ERR "GPR Parity Error\n");
- if (mcsr & PPC47x_MCSR_FPR)
- printk(KERN_ERR "FPR Parity Error\n");
- if (mcsr & PPC47x_MCSR_IPR)
- printk(KERN_ERR "Machine Check exception is imprecise\n");
-
- /* Clear MCSR */
- mtspr(SPRN_MCSR, mcsr);
-
- return 0;
-}
-#elif defined(CONFIG_E500)
+#if defined(CONFIG_E500)
int machine_check_e500mc(struct pt_regs *regs)
{
unsigned long mcsr = mfspr(SPRN_MCSR);
+ unsigned long pvr = mfspr(SPRN_PVR);
unsigned long reason = mcsr;
int recoverable = 1;
@@ -560,8 +479,15 @@ int machine_check_e500mc(struct pt_regs *regs)
* may still get logged and cause a machine check. We should
* only treat the non-write shadow case as non-recoverable.
*/
- if (!(mfspr(SPRN_L1CSR2) & L1CSR2_DCWS))
- recoverable = 0;
+ /* On e6500 core, L1 DCWS (Data cache write shadow mode) bit
+ * is not implemented but L1 data cache always runs in write
+ * shadow mode. Hence on data cache parity errors HW will
+ * automatically invalidate the L1 Data Cache.
+ */
+ if (PVR_VER(pvr) != PVR_VER_E6500) {
+ if (!(mfspr(SPRN_L1CSR2) & L1CSR2_DCWS))
+ recoverable = 0;
+ }
}
if (reason & MCSR_L2MMU_MHIT) {
@@ -617,7 +543,7 @@ silent_out:
int machine_check_e500(struct pt_regs *regs)
{
- unsigned long reason = get_mc_reason(regs);
+ unsigned long reason = mfspr(SPRN_MCSR);
if (reason & MCSR_BUS_RBERR) {
if (fsl_rio_mcheck_exception(regs))
@@ -664,7 +590,7 @@ int machine_check_generic(struct pt_regs *regs)
#elif defined(CONFIG_E200)
int machine_check_e200(struct pt_regs *regs)
{
- unsigned long reason = get_mc_reason(regs);
+ unsigned long reason = mfspr(SPRN_MCSR);
printk("Machine check in kernel mode.\n");
printk("Caused by (from MCSR=%lx): ", reason);
@@ -686,35 +612,10 @@ int machine_check_e200(struct pt_regs *regs)
return 0;
}
-#elif defined(CONFIG_PPC_8xx)
-int machine_check_8xx(struct pt_regs *regs)
-{
- unsigned long reason = get_mc_reason(regs);
-
- pr_err("Machine check in kernel mode.\n");
- pr_err("Caused by (from SRR1=%lx): ", reason);
- if (reason & 0x40000000)
- pr_err("Fetch error at address %lx\n", regs->nip);
- else
- pr_err("Data access error at address %lx\n", regs->dar);
-
-#ifdef CONFIG_PCI
- /* the qspan pci read routines can cause machine checks -- Cort
- *
- * yuck !!! that totally needs to go away ! There are better ways
- * to deal with that than having a wart in the mcheck handler.
- * -- BenH
- */
- bad_page_fault(regs, regs->dar, SIGBUS);
- return 1;
-#else
- return 0;
-#endif
-}
-#else
+#elif defined(CONFIG_PPC32)
int machine_check_generic(struct pt_regs *regs)
{
- unsigned long reason = get_mc_reason(regs);
+ unsigned long reason = regs->msr;
printk("Machine check in kernel mode.\n");
printk("Caused by (from SRR1=%lx): ", reason);
@@ -751,10 +652,14 @@ int machine_check_generic(struct pt_regs *regs)
void machine_check_exception(struct pt_regs *regs)
{
- enum ctx_state prev_state = exception_enter();
int recover = 0;
+ bool nested = in_nmi();
+ if (!nested)
+ nmi_enter();
- __this_cpu_inc(irq_stat.mce_exceptions);
+ /* 64s accounts the mce in machine_check_early when in HVMODE */
+ if (!IS_ENABLED(CONFIG_PPC_BOOK3S_64) || !cpu_has_feature(CPU_FTR_HVMODE))
+ __this_cpu_inc(irq_stat.mce_exceptions);
add_taint(TAINT_MACHINE_CHECK, LOCKDEP_NOW_UNRELIABLE);
@@ -782,10 +687,11 @@ void machine_check_exception(struct pt_regs *regs)
/* Must die if the interrupt is not recoverable */
if (!(regs->msr & MSR_RI))
- panic("Unrecoverable Machine check");
+ nmi_panic(regs, "Unrecoverable Machine check");
bail:
- exception_exit(prev_state);
+ if (!nested)
+ nmi_exit();
}
void SMIException(struct pt_regs *regs)
@@ -1671,24 +1577,6 @@ void performance_monitor_exception(struct pt_regs *regs)
perf_irq(regs);
}
-#ifdef CONFIG_8xx
-void SoftwareEmulation(struct pt_regs *regs)
-{
- CHECK_FULL_REGS(regs);
-
- if (!user_mode(regs)) {
- debugger(regs);
- die("Kernel Mode Unimplemented Instruction or SW FPU Emulation",
- regs, SIGFPE);
- }
-
- if (!emulate_math(regs))
- return;
-
- _exception(SIGILL, regs, ILL_ILLOPC, regs->nip);
-}
-#endif /* CONFIG_8xx */
-
#ifdef CONFIG_PPC_ADV_DEBUG_REGS
static void handle_debug(struct pt_regs *regs, unsigned long debug_status)
{
@@ -1968,6 +1856,7 @@ void unrecoverable_exception(struct pt_regs *regs)
regs->trap, regs->nip);
die("Unrecoverable exception", regs, SIGABRT);
}
+NOKPROBE_SYMBOL(unrecoverable_exception);
#if defined(CONFIG_BOOKE_WDT) || defined(CONFIG_40x)
/*
@@ -1998,6 +1887,7 @@ void kernel_bad_stack(struct pt_regs *regs)
regs->gpr[1], regs->nip);
die("Bad kernel stack pointer", regs, SIGABRT);
}
+NOKPROBE_SYMBOL(kernel_bad_stack);
void __init trap_init(void)
{
diff --git a/arch/powerpc/kernel/uprobes.c b/arch/powerpc/kernel/uprobes.c
index 003b20964ea0..5d105b8eeece 100644
--- a/arch/powerpc/kernel/uprobes.c
+++ b/arch/powerpc/kernel/uprobes.c
@@ -205,3 +205,12 @@ arch_uretprobe_hijack_return_addr(unsigned long trampoline_vaddr, struct pt_regs
return orig_ret_vaddr;
}
+
+bool arch_uretprobe_is_alive(struct return_instance *ret, enum rp_check ctx,
+ struct pt_regs *regs)
+{
+ if (ctx == RP_CHECK_CHAIN_CALL)
+ return regs->gpr[1] <= ret->stack;
+ else
+ return regs->gpr[1] < ret->stack;
+}
diff --git a/arch/powerpc/kernel/vdso32/gettimeofday.S b/arch/powerpc/kernel/vdso32/gettimeofday.S
index 6b2b69616e77..769c2624e0a6 100644
--- a/arch/powerpc/kernel/vdso32/gettimeofday.S
+++ b/arch/powerpc/kernel/vdso32/gettimeofday.S
@@ -232,15 +232,9 @@ __do_get_tspec:
lwz r6,(CFG_TB_ORIG_STAMP+4)(r9)
/* Get a stable TB value */
-#ifdef CONFIG_8xx
-2: mftbu r3
- mftbl r4
- mftbu r0
-#else
-2: mfspr r3, SPRN_TBRU
- mfspr r4, SPRN_TBRL
- mfspr r0, SPRN_TBRU
-#endif
+2: MFTBU(r3)
+ MFTBL(r4)
+ MFTBU(r0)
cmplw cr0,r3,r0
bne- 2b
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 2f793be3d2b1..882628fa6987 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -8,6 +8,12 @@
#include <asm/cache.h>
#include <asm/thread_info.h>
+#if defined(CONFIG_STRICT_KERNEL_RWX) && !defined(CONFIG_PPC32)
+#define STRICT_ALIGN_SIZE (1 << 24)
+#else
+#define STRICT_ALIGN_SIZE PAGE_SIZE
+#endif
+
ENTRY(_stext)
PHDRS {
@@ -58,7 +64,6 @@ SECTIONS
#ifdef CONFIG_PPC64
KEEP(*(.head.text.first_256B));
#ifdef CONFIG_PPC_BOOK3E
-# define END_FIXED 0x100
#else
KEEP(*(.head.text.real_vectors));
*(.head.text.real_trampolines);
@@ -66,12 +71,8 @@ SECTIONS
*(.head.text.virt_trampolines);
# if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV)
KEEP(*(.head.data.fwnmi_page));
-# define END_FIXED 0x8000
-# else
-# define END_FIXED 0x7000
# endif
#endif
- ASSERT((. == END_FIXED), "vmlinux.lds.S: fixed section overflow error");
#else /* !CONFIG_PPC64 */
HEAD_TEXT
#endif
@@ -79,23 +80,6 @@ SECTIONS
__head_end = .;
- /*
- * If the build dies here, it's likely code in head_64.S is referencing
- * labels it can't reach, and the linker inserting stubs without the
- * assembler's knowledge. To debug, remove the above assert and
- * rebuild. Look for branch stubs in the fixed section region.
- *
- * Linker stub generation could be allowed in "trampoline"
- * sections if absolutely necessary, but this would require
- * some rework of the fixed sections. Before resorting to this,
- * consider references that have sufficient addressing range,
- * (e.g., hand coded trampolines) so the linker does not have
- * to add stubs.
- *
- * Linker stubs at the top of the main text section are currently not
- * detected, and will result in a crash at boot due to offsets being
- * wrong.
- */
#ifdef CONFIG_PPC64
/*
* BLOCK(0) overrides the default output section alignment because
@@ -103,18 +87,31 @@ SECTIONS
* section placement to work.
*/
.text BLOCK(0) : AT(ADDR(.text) - LOAD_OFFSET) {
+#ifdef CONFIG_LD_HEAD_STUB_CATCH
+ *(.linker_stub_catch);
+ . = . ;
+#endif
+
#else
.text : AT(ADDR(.text) - LOAD_OFFSET) {
ALIGN_FUNCTION();
#endif
/* careful! __ftr_alt_* sections need to be close to .text */
- *(.text .fixup __ftr_alt_* .ref.text)
+ *(.text.hot .text .text.fixup .text.unlikely .fixup __ftr_alt_* .ref.text);
SCHED_TEXT
CPUIDLE_TEXT
LOCK_TEXT
KPROBES_TEXT
IRQENTRY_TEXT
SOFTIRQENTRY_TEXT
+ /*
+ * -Os builds call FP save/restore functions. The powerpc64
+ * linker generates those on demand in the .sfpr section.
+ * .sfpr gets placed at the beginning of a group of input
+ * sections, which can break start-of-text offset if it is
+ * included with the main text sections, so put it by itself.
+ */
+ *(.sfpr);
MEM_KEEP(init.text)
MEM_KEEP(exit.text)
@@ -132,7 +129,7 @@ SECTIONS
PROVIDE32 (etext = .);
/* Read-only data */
- RODATA
+ RO_DATA(PAGE_SIZE)
EXCEPTION_TABLE(0)
@@ -149,7 +146,7 @@ SECTIONS
/*
* Init sections discarded at runtime
*/
- . = ALIGN(PAGE_SIZE);
+ . = ALIGN(STRICT_ALIGN_SIZE);
__init_begin = .;
INIT_TEXT_SECTION(PAGE_SIZE) :kernel
@@ -267,7 +264,9 @@ SECTIONS
.data : AT(ADDR(.data) - LOAD_OFFSET) {
DATA_DATA
*(.sdata)
+ *(.sdata2)
*(.got.plt) *(.got)
+ *(.plt)
}
#else
.data : AT(ADDR(.data) - LOAD_OFFSET) {
@@ -330,6 +329,16 @@ SECTIONS
_end = . ;
PROVIDE32 (end = .);
- /* Sections to be discarded. */
+ STABS_DEBUG
+
+ DWARF_DEBUG
+
DISCARDS
+ /DISCARD/ : {
+ *(*.EMB.apuinfo)
+ *(.glink .iplt .plt .rela* .comment)
+ *(.gnu.version*)
+ *(.gnu.attributes)
+ *(.eh_frame)
+ }
}
diff --git a/arch/powerpc/kernel/watchdog.c b/arch/powerpc/kernel/watchdog.c
new file mode 100644
index 000000000000..c702a8981452
--- /dev/null
+++ b/arch/powerpc/kernel/watchdog.c
@@ -0,0 +1,412 @@
+/*
+ * Watchdog support on powerpc systems.
+ *
+ * Copyright 2017, IBM Corporation.
+ *
+ * This uses code from arch/sparc/kernel/nmi.c and kernel/watchdog.c
+ */
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/init.h>
+#include <linux/percpu.h>
+#include <linux/cpu.h>
+#include <linux/nmi.h>
+#include <linux/module.h>
+#include <linux/export.h>
+#include <linux/kprobes.h>
+#include <linux/hardirq.h>
+#include <linux/reboot.h>
+#include <linux/slab.h>
+#include <linux/kdebug.h>
+#include <linux/sched/debug.h>
+#include <linux/delay.h>
+#include <linux/smp.h>
+
+#include <asm/paca.h>
+
+/*
+ * The watchdog has a simple timer that runs on each CPU, once per timer
+ * period. This is the heartbeat.
+ *
+ * Then there are checks to see if the heartbeat has not triggered on a CPU
+ * for the panic timeout period. Currently the watchdog only supports an
+ * SMP check, so the heartbeat only turns on when we have 2 or more CPUs.
+ *
+ * This is not an NMI watchdog, but Linux uses that name for a generic
+ * watchdog in some cases, so NMI gets used in some places.
+ */
+
+static cpumask_t wd_cpus_enabled __read_mostly;
+
+static u64 wd_panic_timeout_tb __read_mostly; /* timebase ticks until panic */
+static u64 wd_smp_panic_timeout_tb __read_mostly; /* panic other CPUs */
+
+static u64 wd_timer_period_ms __read_mostly; /* interval between heartbeat */
+
+static DEFINE_PER_CPU(struct timer_list, wd_timer);
+static DEFINE_PER_CPU(u64, wd_timer_tb);
+
+/*
+ * These are for the SMP checker. CPUs clear their pending bit in their
+ * heartbeat. If the bitmask becomes empty, the time is noted and the
+ * bitmask is refilled.
+ *
+ * All CPUs clear their bit in the pending mask every timer period.
+ * Once all have cleared, the time is noted and the bits are reset.
+ * If the time since all clear was greater than the panic timeout,
+ * we can panic with the list of stuck CPUs.
+ *
+ * This will work best with NMI IPIs for crash code so the stuck CPUs
+ * can be pulled out to get their backtraces.
+ */
+static unsigned long __wd_smp_lock;
+static cpumask_t wd_smp_cpus_pending;
+static cpumask_t wd_smp_cpus_stuck;
+static u64 wd_smp_last_reset_tb;
+
+static inline void wd_smp_lock(unsigned long *flags)
+{
+ /*
+ * Avoid locking layers if possible.
+ * This may be called from low level interrupt handlers at some
+ * point in future.
+ */
+ raw_local_irq_save(*flags);
+ hard_irq_disable(); /* Make it soft-NMI safe */
+ while (unlikely(test_and_set_bit_lock(0, &__wd_smp_lock))) {
+ raw_local_irq_restore(*flags);
+ spin_until_cond(!test_bit(0, &__wd_smp_lock));
+ raw_local_irq_save(*flags);
+ hard_irq_disable();
+ }
+}
+
+static inline void wd_smp_unlock(unsigned long *flags)
+{
+ clear_bit_unlock(0, &__wd_smp_lock);
+ raw_local_irq_restore(*flags);
+}
+
+static void wd_lockup_ipi(struct pt_regs *regs)
+{
+ pr_emerg("Watchdog CPU:%d Hard LOCKUP\n", raw_smp_processor_id());
+ print_modules();
+ print_irqtrace_events(current);
+ if (regs)
+ show_regs(regs);
+ else
+ dump_stack();
+
+ if (hardlockup_panic)
+ nmi_panic(regs, "Hard LOCKUP");
+}
+
+static void set_cpumask_stuck(const struct cpumask *cpumask, u64 tb)
+{
+ cpumask_or(&wd_smp_cpus_stuck, &wd_smp_cpus_stuck, cpumask);
+ cpumask_andnot(&wd_smp_cpus_pending, &wd_smp_cpus_pending, cpumask);
+ if (cpumask_empty(&wd_smp_cpus_pending)) {
+ wd_smp_last_reset_tb = tb;
+ cpumask_andnot(&wd_smp_cpus_pending,
+ &wd_cpus_enabled,
+ &wd_smp_cpus_stuck);
+ }
+}
+static void set_cpu_stuck(int cpu, u64 tb)
+{
+ set_cpumask_stuck(cpumask_of(cpu), tb);
+}
+
+static void watchdog_smp_panic(int cpu, u64 tb)
+{
+ unsigned long flags;
+ int c;
+
+ wd_smp_lock(&flags);
+ /* Double check some things under lock */
+ if ((s64)(tb - wd_smp_last_reset_tb) < (s64)wd_smp_panic_timeout_tb)
+ goto out;
+ if (cpumask_test_cpu(cpu, &wd_smp_cpus_pending))
+ goto out;
+ if (cpumask_weight(&wd_smp_cpus_pending) == 0)
+ goto out;
+
+ pr_emerg("Watchdog CPU:%d detected Hard LOCKUP other CPUS:%*pbl\n",
+ cpu, cpumask_pr_args(&wd_smp_cpus_pending));
+
+ /*
+ * Try to trigger the stuck CPUs.
+ */
+ for_each_cpu(c, &wd_smp_cpus_pending) {
+ if (c == cpu)
+ continue;
+ smp_send_nmi_ipi(c, wd_lockup_ipi, 1000000);
+ }
+ smp_flush_nmi_ipi(1000000);
+
+ /* Take the stuck CPUs out of the watch group */
+ set_cpumask_stuck(&wd_smp_cpus_pending, tb);
+
+ wd_smp_unlock(&flags);
+
+ printk_safe_flush();
+ /*
+ * printk_safe_flush() seems to require another print
+ * before anything actually goes out to console.
+ */
+ if (sysctl_hardlockup_all_cpu_backtrace)
+ trigger_allbutself_cpu_backtrace();
+
+ if (hardlockup_panic)
+ nmi_panic(NULL, "Hard LOCKUP");
+
+ return;
+
+out:
+ wd_smp_unlock(&flags);
+}
+
+static void wd_smp_clear_cpu_pending(int cpu, u64 tb)
+{
+ if (!cpumask_test_cpu(cpu, &wd_smp_cpus_pending)) {
+ if (unlikely(cpumask_test_cpu(cpu, &wd_smp_cpus_stuck))) {
+ unsigned long flags;
+
+ pr_emerg("Watchdog CPU:%d became unstuck\n", cpu);
+ wd_smp_lock(&flags);
+ cpumask_clear_cpu(cpu, &wd_smp_cpus_stuck);
+ wd_smp_unlock(&flags);
+ }
+ return;
+ }
+ cpumask_clear_cpu(cpu, &wd_smp_cpus_pending);
+ if (cpumask_empty(&wd_smp_cpus_pending)) {
+ unsigned long flags;
+
+ wd_smp_lock(&flags);
+ if (cpumask_empty(&wd_smp_cpus_pending)) {
+ wd_smp_last_reset_tb = tb;
+ cpumask_andnot(&wd_smp_cpus_pending,
+ &wd_cpus_enabled,
+ &wd_smp_cpus_stuck);
+ }
+ wd_smp_unlock(&flags);
+ }
+}
+
+static void watchdog_timer_interrupt(int cpu)
+{
+ u64 tb = get_tb();
+
+ per_cpu(wd_timer_tb, cpu) = tb;
+
+ wd_smp_clear_cpu_pending(cpu, tb);
+
+ if ((s64)(tb - wd_smp_last_reset_tb) >= (s64)wd_smp_panic_timeout_tb)
+ watchdog_smp_panic(cpu, tb);
+}
+
+void soft_nmi_interrupt(struct pt_regs *regs)
+{
+ unsigned long flags;
+ int cpu = raw_smp_processor_id();
+ u64 tb;
+
+ if (!cpumask_test_cpu(cpu, &wd_cpus_enabled))
+ return;
+
+ nmi_enter();
+
+ __this_cpu_inc(irq_stat.soft_nmi_irqs);
+
+ tb = get_tb();
+ if (tb - per_cpu(wd_timer_tb, cpu) >= wd_panic_timeout_tb) {
+ per_cpu(wd_timer_tb, cpu) = tb;
+
+ wd_smp_lock(&flags);
+ if (cpumask_test_cpu(cpu, &wd_smp_cpus_stuck)) {
+ wd_smp_unlock(&flags);
+ goto out;
+ }
+ set_cpu_stuck(cpu, tb);
+
+ pr_emerg("Watchdog CPU:%d Hard LOCKUP\n", cpu);
+ print_modules();
+ print_irqtrace_events(current);
+ if (regs)
+ show_regs(regs);
+ else
+ dump_stack();
+
+ wd_smp_unlock(&flags);
+
+ if (sysctl_hardlockup_all_cpu_backtrace)
+ trigger_allbutself_cpu_backtrace();
+
+ if (hardlockup_panic)
+ nmi_panic(regs, "Hard LOCKUP");
+ }
+ if (wd_panic_timeout_tb < 0x7fffffff)
+ mtspr(SPRN_DEC, wd_panic_timeout_tb);
+
+out:
+ nmi_exit();
+}
+
+static void wd_timer_reset(unsigned int cpu, struct timer_list *t)
+{
+ t->expires = jiffies + msecs_to_jiffies(wd_timer_period_ms);
+ if (wd_timer_period_ms > 1000)
+ t->expires = __round_jiffies_up(t->expires, cpu);
+ add_timer_on(t, cpu);
+}
+
+static void wd_timer_fn(unsigned long data)
+{
+ struct timer_list *t = this_cpu_ptr(&wd_timer);
+ int cpu = smp_processor_id();
+
+ watchdog_timer_interrupt(cpu);
+
+ wd_timer_reset(cpu, t);
+}
+
+void arch_touch_nmi_watchdog(void)
+{
+ unsigned long ticks = tb_ticks_per_usec * wd_timer_period_ms * 1000;
+ int cpu = smp_processor_id();
+
+ if (get_tb() - per_cpu(wd_timer_tb, cpu) >= ticks)
+ watchdog_timer_interrupt(cpu);
+}
+EXPORT_SYMBOL(arch_touch_nmi_watchdog);
+
+static void start_watchdog_timer_on(unsigned int cpu)
+{
+ struct timer_list *t = per_cpu_ptr(&wd_timer, cpu);
+
+ per_cpu(wd_timer_tb, cpu) = get_tb();
+
+ setup_pinned_timer(t, wd_timer_fn, 0);
+ wd_timer_reset(cpu, t);
+}
+
+static void stop_watchdog_timer_on(unsigned int cpu)
+{
+ struct timer_list *t = per_cpu_ptr(&wd_timer, cpu);
+
+ del_timer_sync(t);
+}
+
+static int start_wd_on_cpu(unsigned int cpu)
+{
+ unsigned long flags;
+
+ if (cpumask_test_cpu(cpu, &wd_cpus_enabled)) {
+ WARN_ON(1);
+ return 0;
+ }
+
+ if (!(watchdog_enabled & NMI_WATCHDOG_ENABLED))
+ return 0;
+
+ if (!cpumask_test_cpu(cpu, &watchdog_cpumask))
+ return 0;
+
+ wd_smp_lock(&flags);
+ cpumask_set_cpu(cpu, &wd_cpus_enabled);
+ if (cpumask_weight(&wd_cpus_enabled) == 1) {
+ cpumask_set_cpu(cpu, &wd_smp_cpus_pending);
+ wd_smp_last_reset_tb = get_tb();
+ }
+ wd_smp_unlock(&flags);
+
+ start_watchdog_timer_on(cpu);
+
+ return 0;
+}
+
+static int stop_wd_on_cpu(unsigned int cpu)
+{
+ unsigned long flags;
+
+ if (!cpumask_test_cpu(cpu, &wd_cpus_enabled))
+ return 0; /* Can happen in CPU unplug case */
+
+ stop_watchdog_timer_on(cpu);
+
+ wd_smp_lock(&flags);
+ cpumask_clear_cpu(cpu, &wd_cpus_enabled);
+ wd_smp_unlock(&flags);
+
+ wd_smp_clear_cpu_pending(cpu, get_tb());
+
+ return 0;
+}
+
+static void watchdog_calc_timeouts(void)
+{
+ wd_panic_timeout_tb = watchdog_thresh * ppc_tb_freq;
+
+ /* Have the SMP detector trigger a bit later */
+ wd_smp_panic_timeout_tb = wd_panic_timeout_tb * 3 / 2;
+
+ /* 2/5 is the factor that the perf based detector uses */
+ wd_timer_period_ms = watchdog_thresh * 1000 * 2 / 5;
+}
+
+void watchdog_nmi_stop(void)
+{
+ int cpu;
+
+ for_each_cpu(cpu, &wd_cpus_enabled)
+ stop_wd_on_cpu(cpu);
+}
+
+void watchdog_nmi_start(void)
+{
+ int cpu;
+
+ watchdog_calc_timeouts();
+ for_each_cpu_and(cpu, cpu_online_mask, &watchdog_cpumask)
+ start_wd_on_cpu(cpu);
+}
+
+/*
+ * Invoked from core watchdog init.
+ */
+int __init watchdog_nmi_probe(void)
+{
+ int err;
+
+ err = cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN,
+ "powerpc/watchdog:online",
+ start_wd_on_cpu, stop_wd_on_cpu);
+ if (err < 0) {
+ pr_warn("Watchdog could not be initialized");
+ return err;
+ }
+ return 0;
+}
+
+static void handle_backtrace_ipi(struct pt_regs *regs)
+{
+ nmi_cpu_backtrace(regs);
+}
+
+static void raise_backtrace_ipi(cpumask_t *mask)
+{
+ unsigned int cpu;
+
+ for_each_cpu(cpu, mask) {
+ if (cpu == smp_processor_id())
+ handle_backtrace_ipi(NULL);
+ else
+ smp_send_nmi_ipi(cpu, handle_backtrace_ipi, 1000000);
+ }
+}
+
+void arch_trigger_cpumask_backtrace(const cpumask_t *mask, bool exclude_self)
+{
+ nmi_trigger_cpumask_backtrace(mask, exclude_self, raise_backtrace_ipi);
+}
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index 710e491206ed..7c62967d672c 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
@@ -37,6 +37,7 @@
#include <asm/synch.h>
#include <asm/ppc-opcode.h>
#include <asm/cputable.h>
+#include <asm/pte-walk.h>
#include "trace_hv.h"
@@ -93,7 +94,7 @@ int kvmppc_allocate_hpt(struct kvm_hpt_info *info, u32 order)
}
if (!hpt)
- hpt = __get_free_pages(GFP_KERNEL|__GFP_ZERO|__GFP_REPEAT
+ hpt = __get_free_pages(GFP_KERNEL|__GFP_ZERO|__GFP_RETRY_MAYFAIL
|__GFP_NOWARN, order - PAGE_SHIFT);
if (!hpt)
@@ -164,8 +165,10 @@ long kvmppc_alloc_reset_hpt(struct kvm *kvm, int order)
goto out;
}
- if (kvm->arch.hpt.virt)
+ if (kvm->arch.hpt.virt) {
kvmppc_free_hpt(&kvm->arch.hpt);
+ kvmppc_rmap_reset(kvm);
+ }
err = kvmppc_allocate_hpt(&info, order);
if (err < 0)
@@ -597,8 +600,8 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
* hugepage split and collapse.
*/
local_irq_save(flags);
- ptep = find_linux_pte_or_hugepte(current->mm->pgd,
- hva, NULL, NULL);
+ ptep = find_current_mm_pte(current->mm->pgd,
+ hva, NULL, NULL);
if (ptep) {
pte = kvmppc_read_update_linux_pte(ptep, 1);
if (__pte_write(pte))
@@ -1938,6 +1941,7 @@ int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *ghf)
rwflag = (ghf->flags & KVM_GET_HTAB_WRITE) ? O_WRONLY : O_RDONLY;
ret = anon_inode_getfd("kvm-htab", &kvm_htab_fops, ctx, rwflag | O_CLOEXEC);
if (ret < 0) {
+ kfree(ctx);
kvm_put_kvm(kvm);
return ret;
}
diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c
index f6b3e67c5762..c5d7435455f1 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_radix.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c
@@ -17,6 +17,7 @@
#include <asm/mmu.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
+#include <asm/pte-walk.h>
/*
* Supported radix tree geometry.
@@ -322,13 +323,13 @@ int kvmppc_book3s_radix_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
gpa = vcpu->arch.fault_gpa & ~0xfffUL;
gpa &= ~0xF000000000000000ul;
gfn = gpa >> PAGE_SHIFT;
- if (!(dsisr & DSISR_PGDIRFAULT))
+ if (!(dsisr & DSISR_PRTABLE_FAULT))
gpa |= ea & 0xfff;
memslot = gfn_to_memslot(kvm, gfn);
/* No memslot means it's an emulated MMIO region */
if (!memslot || (memslot->flags & KVM_MEMSLOT_INVALID)) {
- if (dsisr & (DSISR_PGDIRFAULT | DSISR_BADACCESS |
+ if (dsisr & (DSISR_PRTABLE_FAULT | DSISR_BADACCESS |
DSISR_SET_RC)) {
/*
* Bad address in guest page table tree, or other
@@ -359,8 +360,7 @@ int kvmppc_book3s_radix_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
if (writing)
pgflags |= _PAGE_DIRTY;
local_irq_save(flags);
- ptep = __find_linux_pte_or_hugepte(current->mm->pgd, hva,
- NULL, NULL);
+ ptep = find_current_mm_pte(current->mm->pgd, hva, NULL, NULL);
if (ptep) {
pte = READ_ONCE(*ptep);
if (pte_present(pte) &&
@@ -374,8 +374,12 @@ int kvmppc_book3s_radix_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
spin_unlock(&kvm->mmu_lock);
return RESUME_GUEST;
}
- ptep = __find_linux_pte_or_hugepte(kvm->arch.pgtable,
- gpa, NULL, &shift);
+ /*
+ * We are walking the secondary page table here. We can do this
+ * without disabling irq.
+ */
+ ptep = __find_linux_pte(kvm->arch.pgtable,
+ gpa, NULL, &shift);
if (ptep && pte_present(*ptep)) {
kvmppc_radix_update_pte(kvm, ptep, 0, pgflags,
gpa, shift);
@@ -427,8 +431,8 @@ int kvmppc_book3s_radix_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
pgflags |= _PAGE_WRITE;
} else {
local_irq_save(flags);
- ptep = __find_linux_pte_or_hugepte(current->mm->pgd,
- hva, NULL, NULL);
+ ptep = find_current_mm_pte(current->mm->pgd,
+ hva, NULL, NULL);
if (ptep && pte_write(*ptep) && pte_dirty(*ptep))
pgflags |= _PAGE_WRITE;
local_irq_restore(flags);
@@ -499,8 +503,7 @@ int kvm_unmap_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
unsigned int shift;
unsigned long old;
- ptep = __find_linux_pte_or_hugepte(kvm->arch.pgtable, gpa,
- NULL, &shift);
+ ptep = __find_linux_pte(kvm->arch.pgtable, gpa, NULL, &shift);
if (ptep && pte_present(*ptep)) {
old = kvmppc_radix_update_pte(kvm, ptep, _PAGE_PRESENT, 0,
gpa, shift);
@@ -525,8 +528,7 @@ int kvm_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
unsigned int shift;
int ref = 0;
- ptep = __find_linux_pte_or_hugepte(kvm->arch.pgtable, gpa,
- NULL, &shift);
+ ptep = __find_linux_pte(kvm->arch.pgtable, gpa, NULL, &shift);
if (ptep && pte_present(*ptep) && pte_young(*ptep)) {
kvmppc_radix_update_pte(kvm, ptep, _PAGE_ACCESSED, 0,
gpa, shift);
@@ -545,8 +547,7 @@ int kvm_test_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
unsigned int shift;
int ref = 0;
- ptep = __find_linux_pte_or_hugepte(kvm->arch.pgtable, gpa,
- NULL, &shift);
+ ptep = __find_linux_pte(kvm->arch.pgtable, gpa, NULL, &shift);
if (ptep && pte_present(*ptep) && pte_young(*ptep))
ref = 1;
return ref;
@@ -562,8 +563,7 @@ static int kvm_radix_test_clear_dirty(struct kvm *kvm,
unsigned int shift;
int ret = 0;
- ptep = __find_linux_pte_or_hugepte(kvm->arch.pgtable, gpa,
- NULL, &shift);
+ ptep = __find_linux_pte(kvm->arch.pgtable, gpa, NULL, &shift);
if (ptep && pte_present(*ptep) && pte_dirty(*ptep)) {
ret = 1;
if (shift)
diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c
index a160c14304eb..8f2da8bba737 100644
--- a/arch/powerpc/kvm/book3s_64_vio.c
+++ b/arch/powerpc/kvm/book3s_64_vio.c
@@ -265,8 +265,11 @@ static int kvm_spapr_tce_release(struct inode *inode, struct file *filp)
{
struct kvmppc_spapr_tce_table *stt = filp->private_data;
struct kvmppc_spapr_tce_iommu_table *stit, *tmp;
+ struct kvm *kvm = stt->kvm;
+ mutex_lock(&kvm->lock);
list_del_rcu(&stt->list);
+ mutex_unlock(&kvm->lock);
list_for_each_entry_safe(stit, tmp, &stt->iommu_tables, next) {
WARN_ON(!kref_read(&stit->kref));
@@ -294,6 +297,7 @@ long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
struct kvm_create_spapr_tce_64 *args)
{
struct kvmppc_spapr_tce_table *stt = NULL;
+ struct kvmppc_spapr_tce_table *siter;
unsigned long npages, size;
int ret = -ENOMEM;
int i;
@@ -301,25 +305,17 @@ long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
if (!args->size)
return -EINVAL;
- /* Check this LIOBN hasn't been previously allocated */
- list_for_each_entry(stt, &kvm->arch.spapr_tce_tables, list) {
- if (stt->liobn == args->liobn)
- return -EBUSY;
- }
-
size = _ALIGN_UP(args->size, PAGE_SIZE >> 3);
npages = kvmppc_tce_pages(size);
ret = kvmppc_account_memlimit(kvmppc_stt_pages(npages), true);
- if (ret) {
- stt = NULL;
- goto fail;
- }
+ if (ret)
+ return ret;
ret = -ENOMEM;
stt = kzalloc(sizeof(*stt) + npages * sizeof(struct page *),
GFP_KERNEL);
if (!stt)
- goto fail;
+ goto fail_acct;
stt->liobn = args->liobn;
stt->page_shift = args->page_shift;
@@ -334,24 +330,39 @@ long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
goto fail;
}
- kvm_get_kvm(kvm);
-
mutex_lock(&kvm->lock);
- list_add_rcu(&stt->list, &kvm->arch.spapr_tce_tables);
+
+ /* Check this LIOBN hasn't been previously allocated */
+ ret = 0;
+ list_for_each_entry(siter, &kvm->arch.spapr_tce_tables, list) {
+ if (siter->liobn == args->liobn) {
+ ret = -EBUSY;
+ break;
+ }
+ }
+
+ if (!ret)
+ ret = anon_inode_getfd("kvm-spapr-tce", &kvm_spapr_tce_fops,
+ stt, O_RDWR | O_CLOEXEC);
+
+ if (ret >= 0) {
+ list_add_rcu(&stt->list, &kvm->arch.spapr_tce_tables);
+ kvm_get_kvm(kvm);
+ }
mutex_unlock(&kvm->lock);
- return anon_inode_getfd("kvm-spapr-tce", &kvm_spapr_tce_fops,
- stt, O_RDWR | O_CLOEXEC);
+ if (ret >= 0)
+ return ret;
-fail:
- if (stt) {
- for (i = 0; i < npages; i++)
- if (stt->pages[i])
- __free_page(stt->pages[i]);
+ fail:
+ for (i = 0; i < npages; i++)
+ if (stt->pages[i])
+ __free_page(stt->pages[i]);
- kfree(stt);
- }
+ kfree(stt);
+ fail_acct:
+ kvmppc_account_memlimit(kvmppc_stt_pages(npages), false);
return ret;
}
diff --git a/arch/powerpc/kvm/book3s_64_vio_hv.c b/arch/powerpc/kvm/book3s_64_vio_hv.c
index 3adfd2f5301c..c32e9bfe75b1 100644
--- a/arch/powerpc/kvm/book3s_64_vio_hv.c
+++ b/arch/powerpc/kvm/book3s_64_vio_hv.c
@@ -39,6 +39,7 @@
#include <asm/udbg.h>
#include <asm/iommu.h>
#include <asm/tce.h>
+#include <asm/pte-walk.h>
#ifdef CONFIG_BUG
@@ -353,7 +354,16 @@ static long kvmppc_rm_ua_to_hpa(struct kvm_vcpu *vcpu,
pte_t *ptep, pte;
unsigned shift = 0;
- ptep = __find_linux_pte_or_hugepte(vcpu->arch.pgdir, ua, NULL, &shift);
+ /*
+ * Called in real mode with MSR_EE = 0. We are safe here.
+ * It is ok to do the lookup with arch.pgdir here, because
+ * we are doing this on secondary cpus and current task there
+ * is not the hypervisor. Also this is safe against THP in the
+ * host, because an IPI to primary thread will wait for the secondary
+ * to exit which will agains result in the below page table walk
+ * to finish.
+ */
+ ptep = __find_linux_pte(vcpu->arch.pgdir, ua, NULL, &shift);
if (!ptep || !pte_present(*ptep))
return -ENXIO;
pte = *ptep;
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 8d1a365b8edc..73bf1ebfa78f 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -46,6 +46,8 @@
#include <linux/of.h>
#include <asm/reg.h>
+#include <asm/ppc-opcode.h>
+#include <asm/disassemble.h>
#include <asm/cputable.h>
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
@@ -179,7 +181,7 @@ static void kvmppc_fast_vcpu_kick_hv(struct kvm_vcpu *vcpu)
struct swait_queue_head *wqp;
wqp = kvm_arch_vcpu_wq(vcpu);
- if (swait_active(wqp)) {
+ if (swq_has_sleeper(wqp)) {
swake_up(wqp);
++vcpu->stat.halt_wakeup;
}
@@ -483,7 +485,13 @@ static unsigned long do_h_register_vpa(struct kvm_vcpu *vcpu,
switch (subfunc) {
case H_VPA_REG_VPA: /* register VPA */
- if (len < sizeof(struct lppaca))
+ /*
+ * The size of our lppaca is 1kB because of the way we align
+ * it for the guest to avoid crossing a 4kB boundary. We only
+ * use 640 bytes of the structure though, so we should accept
+ * clients that set a size of 640.
+ */
+ if (len < 640)
break;
vpap = &tvcpu->arch.vpa;
err = 0;
@@ -645,6 +653,7 @@ static void kvmppc_create_dtl_entry(struct kvm_vcpu *vcpu,
unsigned long stolen;
unsigned long core_stolen;
u64 now;
+ unsigned long flags;
dt = vcpu->arch.dtl_ptr;
vpa = vcpu->arch.vpa.pinned_addr;
@@ -652,10 +661,10 @@ static void kvmppc_create_dtl_entry(struct kvm_vcpu *vcpu,
core_stolen = vcore_stolen_time(vc, now);
stolen = core_stolen - vcpu->arch.stolen_logged;
vcpu->arch.stolen_logged = core_stolen;
- spin_lock_irq(&vcpu->arch.tbacct_lock);
+ spin_lock_irqsave(&vcpu->arch.tbacct_lock, flags);
stolen += vcpu->arch.busy_stolen;
vcpu->arch.busy_stolen = 0;
- spin_unlock_irq(&vcpu->arch.tbacct_lock);
+ spin_unlock_irqrestore(&vcpu->arch.tbacct_lock, flags);
if (!dt || !vpa)
return;
memset(dt, 0, sizeof(struct dtl_entry));
@@ -675,6 +684,26 @@ static void kvmppc_create_dtl_entry(struct kvm_vcpu *vcpu,
vcpu->arch.dtl.dirty = true;
}
+/* See if there is a doorbell interrupt pending for a vcpu */
+static bool kvmppc_doorbell_pending(struct kvm_vcpu *vcpu)
+{
+ int thr;
+ struct kvmppc_vcore *vc;
+
+ if (vcpu->arch.doorbell_request)
+ return true;
+ /*
+ * Ensure that the read of vcore->dpdes comes after the read
+ * of vcpu->doorbell_request. This barrier matches the
+ * lwsync in book3s_hv_rmhandlers.S just before the
+ * fast_guest_return label.
+ */
+ smp_rmb();
+ vc = vcpu->arch.vcore;
+ thr = vcpu->vcpu_id - vc->first_vcpuid;
+ return !!(vc->dpdes & (1 << thr));
+}
+
static bool kvmppc_power8_compatible(struct kvm_vcpu *vcpu)
{
if (vcpu->arch.vcore->arch_compat >= PVR_ARCH_207)
@@ -926,6 +955,101 @@ static int kvmppc_emulate_debug_inst(struct kvm_run *run,
}
}
+static void do_nothing(void *x)
+{
+}
+
+static unsigned long kvmppc_read_dpdes(struct kvm_vcpu *vcpu)
+{
+ int thr, cpu, pcpu, nthreads;
+ struct kvm_vcpu *v;
+ unsigned long dpdes;
+
+ nthreads = vcpu->kvm->arch.emul_smt_mode;
+ dpdes = 0;
+ cpu = vcpu->vcpu_id & ~(nthreads - 1);
+ for (thr = 0; thr < nthreads; ++thr, ++cpu) {
+ v = kvmppc_find_vcpu(vcpu->kvm, cpu);
+ if (!v)
+ continue;
+ /*
+ * If the vcpu is currently running on a physical cpu thread,
+ * interrupt it in order to pull it out of the guest briefly,
+ * which will update its vcore->dpdes value.
+ */
+ pcpu = READ_ONCE(v->cpu);
+ if (pcpu >= 0)
+ smp_call_function_single(pcpu, do_nothing, NULL, 1);
+ if (kvmppc_doorbell_pending(v))
+ dpdes |= 1 << thr;
+ }
+ return dpdes;
+}
+
+/*
+ * On POWER9, emulate doorbell-related instructions in order to
+ * give the guest the illusion of running on a multi-threaded core.
+ * The instructions emulated are msgsndp, msgclrp, mfspr TIR,
+ * and mfspr DPDES.
+ */
+static int kvmppc_emulate_doorbell_instr(struct kvm_vcpu *vcpu)
+{
+ u32 inst, rb, thr;
+ unsigned long arg;
+ struct kvm *kvm = vcpu->kvm;
+ struct kvm_vcpu *tvcpu;
+
+ if (!cpu_has_feature(CPU_FTR_ARCH_300))
+ return EMULATE_FAIL;
+ if (kvmppc_get_last_inst(vcpu, INST_GENERIC, &inst) != EMULATE_DONE)
+ return RESUME_GUEST;
+ if (get_op(inst) != 31)
+ return EMULATE_FAIL;
+ rb = get_rb(inst);
+ thr = vcpu->vcpu_id & (kvm->arch.emul_smt_mode - 1);
+ switch (get_xop(inst)) {
+ case OP_31_XOP_MSGSNDP:
+ arg = kvmppc_get_gpr(vcpu, rb);
+ if (((arg >> 27) & 0xf) != PPC_DBELL_SERVER)
+ break;
+ arg &= 0x3f;
+ if (arg >= kvm->arch.emul_smt_mode)
+ break;
+ tvcpu = kvmppc_find_vcpu(kvm, vcpu->vcpu_id - thr + arg);
+ if (!tvcpu)
+ break;
+ if (!tvcpu->arch.doorbell_request) {
+ tvcpu->arch.doorbell_request = 1;
+ kvmppc_fast_vcpu_kick_hv(tvcpu);
+ }
+ break;
+ case OP_31_XOP_MSGCLRP:
+ arg = kvmppc_get_gpr(vcpu, rb);
+ if (((arg >> 27) & 0xf) != PPC_DBELL_SERVER)
+ break;
+ vcpu->arch.vcore->dpdes = 0;
+ vcpu->arch.doorbell_request = 0;
+ break;
+ case OP_31_XOP_MFSPR:
+ switch (get_sprn(inst)) {
+ case SPRN_TIR:
+ arg = thr;
+ break;
+ case SPRN_DPDES:
+ arg = kvmppc_read_dpdes(vcpu);
+ break;
+ default:
+ return EMULATE_FAIL;
+ }
+ kvmppc_set_gpr(vcpu, get_rt(inst), arg);
+ break;
+ default:
+ return EMULATE_FAIL;
+ }
+ kvmppc_set_pc(vcpu, kvmppc_get_pc(vcpu) + 4);
+ return RESUME_GUEST;
+}
+
static int kvmppc_handle_exit_hv(struct kvm_run *run, struct kvm_vcpu *vcpu,
struct task_struct *tsk)
{
@@ -971,15 +1095,20 @@ static int kvmppc_handle_exit_hv(struct kvm_run *run, struct kvm_vcpu *vcpu,
r = RESUME_GUEST;
break;
case BOOK3S_INTERRUPT_MACHINE_CHECK:
- /*
- * Deliver a machine check interrupt to the guest.
- * We have to do this, even if the host has handled the
- * machine check, because machine checks use SRR0/1 and
- * the interrupt might have trashed guest state in them.
- */
- kvmppc_book3s_queue_irqprio(vcpu,
- BOOK3S_INTERRUPT_MACHINE_CHECK);
- r = RESUME_GUEST;
+ /* Exit to guest with KVM_EXIT_NMI as exit reason */
+ run->exit_reason = KVM_EXIT_NMI;
+ run->hw.hardware_exit_reason = vcpu->arch.trap;
+ /* Clear out the old NMI status from run->flags */
+ run->flags &= ~KVM_RUN_PPC_NMI_DISP_MASK;
+ /* Now set the NMI status */
+ if (vcpu->arch.mce_evt.disposition == MCE_DISPOSITION_RECOVERED)
+ run->flags |= KVM_RUN_PPC_NMI_DISP_FULLY_RECOV;
+ else
+ run->flags |= KVM_RUN_PPC_NMI_DISP_NOT_RECOV;
+
+ r = RESUME_HOST;
+ /* Print the MCE event to host console. */
+ machine_check_print_event_info(&vcpu->arch.mce_evt, false);
break;
case BOOK3S_INTERRUPT_PROGRAM:
{
@@ -1048,12 +1177,19 @@ static int kvmppc_handle_exit_hv(struct kvm_run *run, struct kvm_vcpu *vcpu,
break;
/*
* This occurs if the guest (kernel or userspace), does something that
- * is prohibited by HFSCR. We just generate a program interrupt to
- * the guest.
+ * is prohibited by HFSCR.
+ * On POWER9, this could be a doorbell instruction that we need
+ * to emulate.
+ * Otherwise, we just generate a program interrupt to the guest.
*/
case BOOK3S_INTERRUPT_H_FAC_UNAVAIL:
- kvmppc_core_queue_program(vcpu, SRR1_PROGILL);
- r = RESUME_GUEST;
+ r = EMULATE_FAIL;
+ if ((vcpu->arch.hfscr >> 56) == FSCR_MSGP_LG)
+ r = kvmppc_emulate_doorbell_instr(vcpu);
+ if (r == EMULATE_FAIL) {
+ kvmppc_core_queue_program(vcpu, SRR1_PROGILL);
+ r = RESUME_GUEST;
+ }
break;
case BOOK3S_INTERRUPT_HV_RM_HARD:
r = RESUME_PASSTHROUGH;
@@ -1143,6 +1279,12 @@ static void kvmppc_set_lpcr(struct kvm_vcpu *vcpu, u64 new_lpcr,
mask = LPCR_DPFD | LPCR_ILE | LPCR_TC;
if (cpu_has_feature(CPU_FTR_ARCH_207S))
mask |= LPCR_AIL;
+ /*
+ * On POWER9, allow userspace to enable large decrementer for the
+ * guest, whether or not the host has it enabled.
+ */
+ if (cpu_has_feature(CPU_FTR_ARCH_300))
+ mask |= LPCR_LD;
/* Broken 32-bit version of LPCR must not clear top bits */
if (preserve_top32)
@@ -1611,7 +1753,7 @@ static struct kvmppc_vcore *kvmppc_vcore_create(struct kvm *kvm, int core)
init_swait_queue_head(&vcore->wq);
vcore->preempt_tb = TB_NIL;
vcore->lpcr = kvm->arch.lpcr;
- vcore->first_vcpuid = core * threads_per_vcore();
+ vcore->first_vcpuid = core * kvm->arch.smt_mode;
vcore->kvm = kvm;
INIT_LIST_HEAD(&vcore->preempt_list);
@@ -1770,14 +1912,10 @@ static struct kvm_vcpu *kvmppc_core_vcpu_create_hv(struct kvm *kvm,
unsigned int id)
{
struct kvm_vcpu *vcpu;
- int err = -EINVAL;
+ int err;
int core;
struct kvmppc_vcore *vcore;
- core = id / threads_per_vcore();
- if (core >= KVM_MAX_VCORES)
- goto out;
-
err = -ENOMEM;
vcpu = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
if (!vcpu)
@@ -1808,6 +1946,20 @@ static struct kvm_vcpu *kvmppc_core_vcpu_create_hv(struct kvm *kvm,
vcpu->arch.busy_preempt = TB_NIL;
vcpu->arch.intr_msr = MSR_SF | MSR_ME;
+ /*
+ * Set the default HFSCR for the guest from the host value.
+ * This value is only used on POWER9.
+ * On POWER9 DD1, TM doesn't work, so we make sure to
+ * prevent the guest from using it.
+ * On POWER9, we want to virtualize the doorbell facility, so we
+ * turn off the HFSCR bit, which causes those instructions to trap.
+ */
+ vcpu->arch.hfscr = mfspr(SPRN_HFSCR);
+ if (!cpu_has_feature(CPU_FTR_TM))
+ vcpu->arch.hfscr &= ~HFSCR_TM;
+ if (cpu_has_feature(CPU_FTR_ARCH_300))
+ vcpu->arch.hfscr &= ~HFSCR_MSGP;
+
kvmppc_mmu_book3s_hv_init(vcpu);
vcpu->arch.state = KVMPPC_VCPU_NOTREADY;
@@ -1815,11 +1967,17 @@ static struct kvm_vcpu *kvmppc_core_vcpu_create_hv(struct kvm *kvm,
init_waitqueue_head(&vcpu->arch.cpu_run);
mutex_lock(&kvm->lock);
- vcore = kvm->arch.vcores[core];
- if (!vcore) {
- vcore = kvmppc_vcore_create(kvm, core);
- kvm->arch.vcores[core] = vcore;
- kvm->arch.online_vcores++;
+ vcore = NULL;
+ err = -EINVAL;
+ core = id / kvm->arch.smt_mode;
+ if (core < KVM_MAX_VCORES) {
+ vcore = kvm->arch.vcores[core];
+ if (!vcore) {
+ err = -ENOMEM;
+ vcore = kvmppc_vcore_create(kvm, core);
+ kvm->arch.vcores[core] = vcore;
+ kvm->arch.online_vcores++;
+ }
}
mutex_unlock(&kvm->lock);
@@ -1847,6 +2005,43 @@ out:
return ERR_PTR(err);
}
+static int kvmhv_set_smt_mode(struct kvm *kvm, unsigned long smt_mode,
+ unsigned long flags)
+{
+ int err;
+ int esmt = 0;
+
+ if (flags)
+ return -EINVAL;
+ if (smt_mode > MAX_SMT_THREADS || !is_power_of_2(smt_mode))
+ return -EINVAL;
+ if (!cpu_has_feature(CPU_FTR_ARCH_300)) {
+ /*
+ * On POWER8 (or POWER7), the threading mode is "strict",
+ * so we pack smt_mode vcpus per vcore.
+ */
+ if (smt_mode > threads_per_subcore)
+ return -EINVAL;
+ } else {
+ /*
+ * On POWER9, the threading mode is "loose",
+ * so each vcpu gets its own vcore.
+ */
+ esmt = smt_mode;
+ smt_mode = 1;
+ }
+ mutex_lock(&kvm->lock);
+ err = -EBUSY;
+ if (!kvm->arch.online_vcores) {
+ kvm->arch.smt_mode = smt_mode;
+ kvm->arch.emul_smt_mode = esmt;
+ err = 0;
+ }
+ mutex_unlock(&kvm->lock);
+
+ return err;
+}
+
static void unpin_vpa(struct kvm *kvm, struct kvmppc_vpa *vpa)
{
if (vpa->pinned_addr)
@@ -1897,7 +2092,7 @@ static void kvmppc_end_cede(struct kvm_vcpu *vcpu)
}
}
-extern void __kvmppc_vcore_entry(void);
+extern int __kvmppc_vcore_entry(void);
static void kvmppc_remove_runnable(struct kvmppc_vcore *vc,
struct kvm_vcpu *vcpu)
@@ -1922,6 +2117,15 @@ static int kvmppc_grab_hwthread(int cpu)
struct paca_struct *tpaca;
long timeout = 10000;
+ /*
+ * ISA v3.0 idle routines do not set hwthread_state or test
+ * hwthread_req, so they can not grab idle threads.
+ */
+ if (cpu_has_feature(CPU_FTR_ARCH_300)) {
+ WARN(1, "KVM: can not control sibling threads\n");
+ return -EBUSY;
+ }
+
tpaca = &paca[cpu];
/* Ensure the thread won't go into the kernel if it wakes */
@@ -1956,14 +2160,12 @@ static void kvmppc_release_hwthread(int cpu)
struct paca_struct *tpaca;
tpaca = &paca[cpu];
- tpaca->kvm_hstate.hwthread_req = 0;
tpaca->kvm_hstate.kvm_vcpu = NULL;
tpaca->kvm_hstate.kvm_vcore = NULL;
tpaca->kvm_hstate.kvm_split_mode = NULL;
-}
+ if (!cpu_has_feature(CPU_FTR_ARCH_300))
+ tpaca->kvm_hstate.hwthread_req = 0;
-static void do_nothing(void *x)
-{
}
static void radix_flush_cpu(struct kvm *kvm, int cpu, struct kvm_vcpu *vcpu)
@@ -1983,11 +2185,35 @@ static void radix_flush_cpu(struct kvm *kvm, int cpu, struct kvm_vcpu *vcpu)
smp_call_function_single(cpu + i, do_nothing, NULL, 1);
}
+static void kvmppc_prepare_radix_vcpu(struct kvm_vcpu *vcpu, int pcpu)
+{
+ struct kvm *kvm = vcpu->kvm;
+
+ /*
+ * With radix, the guest can do TLB invalidations itself,
+ * and it could choose to use the local form (tlbiel) if
+ * it is invalidating a translation that has only ever been
+ * used on one vcpu. However, that doesn't mean it has
+ * only ever been used on one physical cpu, since vcpus
+ * can move around between pcpus. To cope with this, when
+ * a vcpu moves from one pcpu to another, we need to tell
+ * any vcpus running on the same core as this vcpu previously
+ * ran to flush the TLB. The TLB is shared between threads,
+ * so we use a single bit in .need_tlb_flush for all 4 threads.
+ */
+ if (vcpu->arch.prev_cpu != pcpu) {
+ if (vcpu->arch.prev_cpu >= 0 &&
+ cpu_first_thread_sibling(vcpu->arch.prev_cpu) !=
+ cpu_first_thread_sibling(pcpu))
+ radix_flush_cpu(kvm, vcpu->arch.prev_cpu, vcpu);
+ vcpu->arch.prev_cpu = pcpu;
+ }
+}
+
static void kvmppc_start_thread(struct kvm_vcpu *vcpu, struct kvmppc_vcore *vc)
{
int cpu;
struct paca_struct *tpaca;
- struct kvmppc_vcore *mvc = vc->master_vcore;
struct kvm *kvm = vc->kvm;
cpu = vc->pcpu;
@@ -1997,36 +2223,16 @@ static void kvmppc_start_thread(struct kvm_vcpu *vcpu, struct kvmppc_vcore *vc)
vcpu->arch.timer_running = 0;
}
cpu += vcpu->arch.ptid;
- vcpu->cpu = mvc->pcpu;
+ vcpu->cpu = vc->pcpu;
vcpu->arch.thread_cpu = cpu;
-
- /*
- * With radix, the guest can do TLB invalidations itself,
- * and it could choose to use the local form (tlbiel) if
- * it is invalidating a translation that has only ever been
- * used on one vcpu. However, that doesn't mean it has
- * only ever been used on one physical cpu, since vcpus
- * can move around between pcpus. To cope with this, when
- * a vcpu moves from one pcpu to another, we need to tell
- * any vcpus running on the same core as this vcpu previously
- * ran to flush the TLB. The TLB is shared between threads,
- * so we use a single bit in .need_tlb_flush for all 4 threads.
- */
- if (kvm_is_radix(kvm) && vcpu->arch.prev_cpu != cpu) {
- if (vcpu->arch.prev_cpu >= 0 &&
- cpu_first_thread_sibling(vcpu->arch.prev_cpu) !=
- cpu_first_thread_sibling(cpu))
- radix_flush_cpu(kvm, vcpu->arch.prev_cpu, vcpu);
- vcpu->arch.prev_cpu = cpu;
- }
cpumask_set_cpu(cpu, &kvm->arch.cpu_in_guest);
}
tpaca = &paca[cpu];
tpaca->kvm_hstate.kvm_vcpu = vcpu;
- tpaca->kvm_hstate.ptid = cpu - mvc->pcpu;
+ tpaca->kvm_hstate.ptid = cpu - vc->pcpu;
/* Order stores to hstate.kvm_vcpu etc. before store to kvm_vcore */
smp_wmb();
- tpaca->kvm_hstate.kvm_vcore = mvc;
+ tpaca->kvm_hstate.kvm_vcore = vc;
if (cpu != smp_processor_id())
kvmppc_ipi_thread(cpu);
}
@@ -2155,8 +2361,7 @@ struct core_info {
int max_subcore_threads;
int total_threads;
int subcore_threads[MAX_SUBCORES];
- struct kvm *subcore_vm[MAX_SUBCORES];
- struct list_head vcs[MAX_SUBCORES];
+ struct kvmppc_vcore *vc[MAX_SUBCORES];
};
/*
@@ -2167,17 +2372,12 @@ static int subcore_thread_map[MAX_SUBCORES] = { 0, 4, 2, 6 };
static void init_core_info(struct core_info *cip, struct kvmppc_vcore *vc)
{
- int sub;
-
memset(cip, 0, sizeof(*cip));
cip->n_subcores = 1;
cip->max_subcore_threads = vc->num_threads;
cip->total_threads = vc->num_threads;
cip->subcore_threads[0] = vc->num_threads;
- cip->subcore_vm[0] = vc->kvm;
- for (sub = 0; sub < MAX_SUBCORES; ++sub)
- INIT_LIST_HEAD(&cip->vcs[sub]);
- list_add_tail(&vc->preempt_list, &cip->vcs[0]);
+ cip->vc[0] = vc;
}
static bool subcore_config_ok(int n_subcores, int n_threads)
@@ -2197,9 +2397,8 @@ static bool subcore_config_ok(int n_subcores, int n_threads)
return n_subcores * roundup_pow_of_two(n_threads) <= MAX_SMT_THREADS;
}
-static void init_master_vcore(struct kvmppc_vcore *vc)
+static void init_vcore_to_run(struct kvmppc_vcore *vc)
{
- vc->master_vcore = vc;
vc->entry_exit_map = 0;
vc->in_guest = 0;
vc->napping_threads = 0;
@@ -2224,9 +2423,9 @@ static bool can_dynamic_split(struct kvmppc_vcore *vc, struct core_info *cip)
++cip->n_subcores;
cip->total_threads += vc->num_threads;
cip->subcore_threads[sub] = vc->num_threads;
- cip->subcore_vm[sub] = vc->kvm;
- init_master_vcore(vc);
- list_move_tail(&vc->preempt_list, &cip->vcs[sub]);
+ cip->vc[sub] = vc;
+ init_vcore_to_run(vc);
+ list_del_init(&vc->preempt_list);
return true;
}
@@ -2294,6 +2493,18 @@ static void collect_piggybacks(struct core_info *cip, int target_threads)
spin_unlock(&lp->lock);
}
+static bool recheck_signals(struct core_info *cip)
+{
+ int sub, i;
+ struct kvm_vcpu *vcpu;
+
+ for (sub = 0; sub < cip->n_subcores; ++sub)
+ for_each_runnable_thread(i, vcpu, cip->vc[sub])
+ if (signal_pending(vcpu->arch.run_task))
+ return true;
+ return false;
+}
+
static void post_guest_process(struct kvmppc_vcore *vc, bool is_master)
{
int still_running = 0, i;
@@ -2331,7 +2542,6 @@ static void post_guest_process(struct kvmppc_vcore *vc, bool is_master)
wake_up(&vcpu->arch.cpu_run);
}
}
- list_del_init(&vc->preempt_list);
if (!is_master) {
if (still_running > 0) {
kvmppc_vcore_preempt(vc);
@@ -2393,6 +2603,21 @@ static inline int kvmppc_set_host_core(unsigned int cpu)
return 0;
}
+static void set_irq_happened(int trap)
+{
+ switch (trap) {
+ case BOOK3S_INTERRUPT_EXTERNAL:
+ local_paca->irq_happened |= PACA_IRQ_EE;
+ break;
+ case BOOK3S_INTERRUPT_H_DOORBELL:
+ local_paca->irq_happened |= PACA_IRQ_DBELL;
+ break;
+ case BOOK3S_INTERRUPT_HMI:
+ local_paca->irq_happened |= PACA_IRQ_HMI;
+ break;
+ }
+}
+
/*
* Run a set of guest threads on a physical core.
* Called with vc->lock held.
@@ -2403,7 +2628,7 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
int i;
int srcu_idx;
struct core_info core_info;
- struct kvmppc_vcore *pvc, *vcnext;
+ struct kvmppc_vcore *pvc;
struct kvm_split_mode split_info, *sip;
int split, subcore_size, active;
int sub;
@@ -2412,6 +2637,7 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
int pcpu, thr;
int target_threads;
int controlled_threads;
+ int trap;
/*
* Remove from the list any threads that have a signal pending
@@ -2426,7 +2652,7 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
/*
* Initialize *vc.
*/
- init_master_vcore(vc);
+ init_vcore_to_run(vc);
vc->preempt_tb = TB_NIL;
/*
@@ -2463,6 +2689,43 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
if (vc->num_threads < target_threads)
collect_piggybacks(&core_info, target_threads);
+ /*
+ * On radix, arrange for TLB flushing if necessary.
+ * This has to be done before disabling interrupts since
+ * it uses smp_call_function().
+ */
+ pcpu = smp_processor_id();
+ if (kvm_is_radix(vc->kvm)) {
+ for (sub = 0; sub < core_info.n_subcores; ++sub)
+ for_each_runnable_thread(i, vcpu, core_info.vc[sub])
+ kvmppc_prepare_radix_vcpu(vcpu, pcpu);
+ }
+
+ /*
+ * Hard-disable interrupts, and check resched flag and signals.
+ * If we need to reschedule or deliver a signal, clean up
+ * and return without going into the guest(s).
+ */
+ local_irq_disable();
+ hard_irq_disable();
+ if (lazy_irq_pending() || need_resched() ||
+ recheck_signals(&core_info)) {
+ local_irq_enable();
+ vc->vcore_state = VCORE_INACTIVE;
+ /* Unlock all except the primary vcore */
+ for (sub = 1; sub < core_info.n_subcores; ++sub) {
+ pvc = core_info.vc[sub];
+ /* Put back on to the preempted vcores list */
+ kvmppc_vcore_preempt(pvc);
+ spin_unlock(&pvc->lock);
+ }
+ for (i = 0; i < controlled_threads; ++i)
+ kvmppc_release_hwthread(pcpu + i);
+ return;
+ }
+
+ kvmppc_clear_host_core(pcpu);
+
/* Decide on micro-threading (split-core) mode */
subcore_size = threads_per_subcore;
cmd_bit = stat_bit = 0;
@@ -2486,13 +2749,10 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
split_info.ldbar = mfspr(SPRN_LDBAR);
split_info.subcore_size = subcore_size;
for (sub = 0; sub < core_info.n_subcores; ++sub)
- split_info.master_vcs[sub] =
- list_first_entry(&core_info.vcs[sub],
- struct kvmppc_vcore, preempt_list);
+ split_info.vc[sub] = core_info.vc[sub];
/* order writes to split_info before kvm_split_mode pointer */
smp_wmb();
}
- pcpu = smp_processor_id();
for (thr = 0; thr < controlled_threads; ++thr)
paca[pcpu + thr].kvm_hstate.kvm_split_mode = sip;
@@ -2512,32 +2772,29 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
}
}
- kvmppc_clear_host_core(pcpu);
-
/* Start all the threads */
active = 0;
for (sub = 0; sub < core_info.n_subcores; ++sub) {
thr = subcore_thread_map[sub];
thr0_done = false;
active |= 1 << thr;
- list_for_each_entry(pvc, &core_info.vcs[sub], preempt_list) {
- pvc->pcpu = pcpu + thr;
- for_each_runnable_thread(i, vcpu, pvc) {
- kvmppc_start_thread(vcpu, pvc);
- kvmppc_create_dtl_entry(vcpu, pvc);
- trace_kvm_guest_enter(vcpu);
- if (!vcpu->arch.ptid)
- thr0_done = true;
- active |= 1 << (thr + vcpu->arch.ptid);
- }
- /*
- * We need to start the first thread of each subcore
- * even if it doesn't have a vcpu.
- */
- if (pvc->master_vcore == pvc && !thr0_done)
- kvmppc_start_thread(NULL, pvc);
- thr += pvc->num_threads;
+ pvc = core_info.vc[sub];
+ pvc->pcpu = pcpu + thr;
+ for_each_runnable_thread(i, vcpu, pvc) {
+ kvmppc_start_thread(vcpu, pvc);
+ kvmppc_create_dtl_entry(vcpu, pvc);
+ trace_kvm_guest_enter(vcpu);
+ if (!vcpu->arch.ptid)
+ thr0_done = true;
+ active |= 1 << (thr + vcpu->arch.ptid);
}
+ /*
+ * We need to start the first thread of each subcore
+ * even if it doesn't have a vcpu.
+ */
+ if (!thr0_done)
+ kvmppc_start_thread(NULL, pvc);
+ thr += pvc->num_threads;
}
/*
@@ -2564,17 +2821,27 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
trace_kvmppc_run_core(vc, 0);
for (sub = 0; sub < core_info.n_subcores; ++sub)
- list_for_each_entry(pvc, &core_info.vcs[sub], preempt_list)
- spin_unlock(&pvc->lock);
+ spin_unlock(&core_info.vc[sub]->lock);
+
+ /*
+ * Interrupts will be enabled once we get into the guest,
+ * so tell lockdep that we're about to enable interrupts.
+ */
+ trace_hardirqs_on();
guest_enter();
srcu_idx = srcu_read_lock(&vc->kvm->srcu);
- __kvmppc_vcore_entry();
+ trap = __kvmppc_vcore_entry();
srcu_read_unlock(&vc->kvm->srcu, srcu_idx);
+ guest_exit();
+
+ trace_hardirqs_off();
+ set_irq_happened(trap);
+
spin_lock(&vc->lock);
/* prevent other vcpu threads from doing kvmppc_start_thread() now */
vc->vcore_state = VCORE_EXITING;
@@ -2602,6 +2869,10 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
split_info.do_nap = 0;
}
+ kvmppc_set_host_core(pcpu);
+
+ local_irq_enable();
+
/* Let secondaries go back to the offline loop */
for (i = 0; i < controlled_threads; ++i) {
kvmppc_release_hwthread(pcpu + i);
@@ -2610,18 +2881,15 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
cpumask_clear_cpu(pcpu + i, &vc->kvm->arch.cpu_in_guest);
}
- kvmppc_set_host_core(pcpu);
-
spin_unlock(&vc->lock);
/* make sure updates to secondary vcpu structs are visible now */
smp_mb();
- guest_exit();
- for (sub = 0; sub < core_info.n_subcores; ++sub)
- list_for_each_entry_safe(pvc, vcnext, &core_info.vcs[sub],
- preempt_list)
- post_guest_process(pvc, pvc == vc);
+ for (sub = 0; sub < core_info.n_subcores; ++sub) {
+ pvc = core_info.vc[sub];
+ post_guest_process(pvc, pvc == vc);
+ }
spin_lock(&vc->lock);
preempt_enable();
@@ -2666,6 +2934,30 @@ static void shrink_halt_poll_ns(struct kvmppc_vcore *vc)
vc->halt_poll_ns /= halt_poll_ns_shrink;
}
+#ifdef CONFIG_KVM_XICS
+static inline bool xive_interrupt_pending(struct kvm_vcpu *vcpu)
+{
+ if (!xive_enabled())
+ return false;
+ return vcpu->arch.xive_saved_state.pipr <
+ vcpu->arch.xive_saved_state.cppr;
+}
+#else
+static inline bool xive_interrupt_pending(struct kvm_vcpu *vcpu)
+{
+ return false;
+}
+#endif /* CONFIG_KVM_XICS */
+
+static bool kvmppc_vcpu_woken(struct kvm_vcpu *vcpu)
+{
+ if (vcpu->arch.pending_exceptions || vcpu->arch.prodded ||
+ kvmppc_doorbell_pending(vcpu) || xive_interrupt_pending(vcpu))
+ return true;
+
+ return false;
+}
+
/*
* Check to see if any of the runnable vcpus on the vcore have pending
* exceptions or are no longer ceded
@@ -2676,8 +2968,7 @@ static int kvmppc_vcore_check_block(struct kvmppc_vcore *vc)
int i;
for_each_runnable_thread(i, vcpu, vc) {
- if (vcpu->arch.pending_exceptions || !vcpu->arch.ceded ||
- vcpu->arch.prodded)
+ if (!vcpu->arch.ceded || kvmppc_vcpu_woken(vcpu))
return 1;
}
@@ -2819,15 +3110,14 @@ static int kvmppc_run_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
*/
if (!signal_pending(current)) {
if (vc->vcore_state == VCORE_PIGGYBACK) {
- struct kvmppc_vcore *mvc = vc->master_vcore;
- if (spin_trylock(&mvc->lock)) {
- if (mvc->vcore_state == VCORE_RUNNING &&
- !VCORE_IS_EXITING(mvc)) {
+ if (spin_trylock(&vc->lock)) {
+ if (vc->vcore_state == VCORE_RUNNING &&
+ !VCORE_IS_EXITING(vc)) {
kvmppc_create_dtl_entry(vcpu, vc);
kvmppc_start_thread(vcpu, vc);
trace_kvm_guest_enter(vcpu);
}
- spin_unlock(&mvc->lock);
+ spin_unlock(&vc->lock);
}
} else if (vc->vcore_state == VCORE_RUNNING &&
!VCORE_IS_EXITING(vc)) {
@@ -2863,7 +3153,7 @@ static int kvmppc_run_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
break;
n_ceded = 0;
for_each_runnable_thread(i, v, vc) {
- if (!v->arch.pending_exceptions && !v->arch.prodded)
+ if (!kvmppc_vcpu_woken(v))
n_ceded += v->arch.ceded;
else
v->arch.ceded = 0;
@@ -2938,6 +3228,8 @@ static int kvmppc_vcpu_run_hv(struct kvm_run *run, struct kvm_vcpu *vcpu)
run->fail_entry.hardware_entry_failure_reason = 0;
return -EINVAL;
}
+ /* Enable TM so we can read the TM SPRs */
+ mtmsr(mfmsr() | MSR_TM);
current->thread.tm_tfhar = mfspr(SPRN_TFHAR);
current->thread.tm_tfiar = mfspr(SPRN_TFIAR);
current->thread.tm_texasr = mfspr(SPRN_TEXASR);
@@ -3050,6 +3342,14 @@ static int kvm_vm_ioctl_get_smmu_info_hv(struct kvm *kvm,
if (radix_enabled())
return -EINVAL;
+ /*
+ * POWER7, POWER8 and POWER9 all support 32 storage keys for data.
+ * POWER7 doesn't support keys for instruction accesses,
+ * POWER8 and POWER9 do.
+ */
+ info->data_keys = 32;
+ info->instr_keys = cpu_has_feature(CPU_FTR_ARCH_207S) ? 32 : 0;
+
info->flags = KVM_PPC_PAGE_SIZES_REAL;
if (mmu_has_feature(MMU_FTR_1T_SEGMENT))
info->flags |= KVM_PPC_1T_SEGMENTS;
@@ -3368,7 +3668,7 @@ void kvmppc_alloc_host_rm_ops(void)
return;
}
- get_online_cpus();
+ cpus_read_lock();
for (cpu = 0; cpu < nr_cpu_ids; cpu += threads_per_core) {
if (!cpu_online(cpu))
@@ -3390,17 +3690,17 @@ void kvmppc_alloc_host_rm_ops(void)
l_ops = (unsigned long) ops;
if (cmpxchg64((unsigned long *)&kvmppc_host_rm_ops_hv, 0, l_ops)) {
- put_online_cpus();
+ cpus_read_unlock();
kfree(ops->rm_core);
kfree(ops);
return;
}
- cpuhp_setup_state_nocalls(CPUHP_KVM_PPC_BOOK3S_PREPARE,
- "ppc/kvm_book3s:prepare",
- kvmppc_set_host_core,
- kvmppc_clear_host_core);
- put_online_cpus();
+ cpuhp_setup_state_nocalls_cpuslocked(CPUHP_KVM_PPC_BOOK3S_PREPARE,
+ "ppc/kvm_book3s:prepare",
+ kvmppc_set_host_core,
+ kvmppc_clear_host_core);
+ cpus_read_unlock();
}
void kvmppc_free_host_rm_ops(void)
@@ -3519,6 +3819,19 @@ static int kvmppc_core_init_vm_hv(struct kvm *kvm)
kvm_hv_vm_activated();
/*
+ * Initialize smt_mode depending on processor.
+ * POWER8 and earlier have to use "strict" threading, where
+ * all vCPUs in a vcore have to run on the same (sub)core,
+ * whereas on POWER9 the threads can each run a different
+ * guest.
+ */
+ if (!cpu_has_feature(CPU_FTR_ARCH_300))
+ kvm->arch.smt_mode = threads_per_subcore;
+ else
+ kvm->arch.smt_mode = 1;
+ kvm->arch.emul_smt_mode = 1;
+
+ /*
* Create a debugfs directory for the VM
*/
snprintf(buf, sizeof(buf), "vm%d", current->pid);
@@ -3899,11 +4212,13 @@ static int kvmhv_configure_mmu(struct kvm *kvm, struct kvm_ppc_mmuv3_cfg *cfg)
if ((cfg->process_table & PRTS_MASK) > 24)
return -EINVAL;
+ mutex_lock(&kvm->lock);
kvm->arch.process_table = cfg->process_table;
kvmppc_setup_partition_table(kvm);
lpcr = (cfg->flags & KVM_PPC_MMUV3_GTSE) ? LPCR_GTSE : 0;
kvmppc_update_lpcr(kvm, lpcr, LPCR_GTSE);
+ mutex_unlock(&kvm->lock);
return 0;
}
@@ -3947,6 +4262,7 @@ static struct kvmppc_ops kvm_ops_hv = {
#endif
.configure_mmu = kvmhv_configure_mmu,
.get_rmmu_info = kvmhv_get_rmmu_info,
+ .set_smt_mode = kvmhv_set_smt_mode,
};
static int kvm_init_subcore_bitmap(void)
diff --git a/arch/powerpc/kvm/book3s_hv_builtin.c b/arch/powerpc/kvm/book3s_hv_builtin.c
index ee4c2558c305..90644db9d38e 100644
--- a/arch/powerpc/kvm/book3s_hv_builtin.c
+++ b/arch/powerpc/kvm/book3s_hv_builtin.c
@@ -307,7 +307,7 @@ void kvmhv_commence_exit(int trap)
return;
for (i = 0; i < MAX_SUBCORES; ++i) {
- vc = sip->master_vcs[i];
+ vc = sip->vc[i];
if (!vc)
break;
do {
diff --git a/arch/powerpc/kvm/book3s_hv_interrupts.S b/arch/powerpc/kvm/book3s_hv_interrupts.S
index 404deb512844..dc54373c8780 100644
--- a/arch/powerpc/kvm/book3s_hv_interrupts.S
+++ b/arch/powerpc/kvm/book3s_hv_interrupts.S
@@ -61,13 +61,6 @@ BEGIN_FTR_SECTION
std r3, HSTATE_DABR(r13)
END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
- /* Hard-disable interrupts */
- mfmsr r10
- std r10, HSTATE_HOST_MSR(r13)
- rldicl r10,r10,48,1
- rotldi r10,r10,16
- mtmsrd r10,1
-
/* Save host PMU registers */
BEGIN_FTR_SECTION
/* Work around P8 PMAE bug */
@@ -153,6 +146,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
*
* R1 = host R1
* R2 = host R2
+ * R3 = trap number on this thread
* R12 = exit handler id
* R13 = PACA
*/
diff --git a/arch/powerpc/kvm/book3s_hv_ras.c b/arch/powerpc/kvm/book3s_hv_ras.c
index 7ef0993214f3..c356f9a40b24 100644
--- a/arch/powerpc/kvm/book3s_hv_ras.c
+++ b/arch/powerpc/kvm/book3s_hv_ras.c
@@ -130,12 +130,28 @@ static long kvmppc_realmode_mc_power7(struct kvm_vcpu *vcpu)
out:
/*
+ * For guest that supports FWNMI capability, hook the MCE event into
+ * vcpu structure. We are going to exit the guest with KVM_EXIT_NMI
+ * exit reason. On our way to exit we will pull this event from vcpu
+ * structure and print it from thread 0 of the core/subcore.
+ *
+ * For guest that does not support FWNMI capability (old QEMU):
* We are now going enter guest either through machine check
* interrupt (for unhandled errors) or will continue from
* current HSRR0 (for handled errors) in guest. Hence
* queue up the event so that we can log it from host console later.
*/
- machine_check_queue_event();
+ if (vcpu->kvm->arch.fwnmi_enabled) {
+ /*
+ * Hook up the mce event on to vcpu structure.
+ * First clear the old event.
+ */
+ memset(&vcpu->arch.mce_evt, 0, sizeof(vcpu->arch.mce_evt));
+ if (get_mce_event(&mce_evt, MCE_EVENT_RELEASE)) {
+ vcpu->arch.mce_evt = mce_evt;
+ }
+ } else
+ machine_check_queue_event();
return handled;
}
diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
index ce6f2121fffe..4efe364f1188 100644
--- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c
+++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
@@ -15,12 +15,14 @@
#include <linux/log2.h>
#include <asm/tlbflush.h>
+#include <asm/trace.h>
#include <asm/kvm_ppc.h>
#include <asm/kvm_book3s.h>
#include <asm/book3s/64/mmu-hash.h>
#include <asm/hvcall.h>
#include <asm/synch.h>
#include <asm/ppc-opcode.h>
+#include <asm/pte-walk.h>
/* Translate address of a vmalloc'd thing to a linear map address */
static void *real_vmalloc_addr(void *x)
@@ -30,9 +32,9 @@ static void *real_vmalloc_addr(void *x)
/*
* assume we don't have huge pages in vmalloc space...
* So don't worry about THP collapse/split. Called
- * Only in realmode, hence won't need irq_save/restore.
+ * Only in realmode with MSR_EE = 0, hence won't need irq_save/restore.
*/
- p = __find_linux_pte_or_hugepte(swapper_pg_dir, addr, NULL, NULL);
+ p = find_init_mm_pte(addr, NULL);
if (!p || !pte_present(*p))
return NULL;
addr = (pte_pfn(*p) << PAGE_SHIFT) | (addr & ~PAGE_MASK);
@@ -229,14 +231,13 @@ long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
* If we had a page table table change after lookup, we would
* retry via mmu_notifier_retry.
*/
- if (realmode)
- ptep = __find_linux_pte_or_hugepte(pgdir, hva, NULL,
- &hpage_shift);
- else {
+ if (!realmode)
local_irq_save(irq_flags);
- ptep = find_linux_pte_or_hugepte(pgdir, hva, NULL,
- &hpage_shift);
- }
+ /*
+ * If called in real mode we have MSR_EE = 0. Otherwise
+ * we disable irq above.
+ */
+ ptep = __find_linux_pte(pgdir, hva, NULL, &hpage_shift);
if (ptep) {
pte_t pte;
unsigned int host_pte_size;
@@ -268,7 +269,7 @@ long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
if (!realmode)
local_irq_restore(irq_flags);
- ptel &= ~(HPTE_R_PP0 - psize);
+ ptel &= HPTE_R_KEY | HPTE_R_PP0 | (psize-1);
ptel |= pa;
if (pa)
@@ -443,17 +444,23 @@ static void do_tlbies(struct kvm *kvm, unsigned long *rbvalues,
cpu_relax();
if (need_sync)
asm volatile("ptesync" : : : "memory");
- for (i = 0; i < npages; ++i)
+ for (i = 0; i < npages; ++i) {
asm volatile(PPC_TLBIE_5(%0,%1,0,0,0) : :
"r" (rbvalues[i]), "r" (kvm->arch.lpid));
+ trace_tlbie(kvm->arch.lpid, 0, rbvalues[i],
+ kvm->arch.lpid, 0, 0, 0);
+ }
asm volatile("eieio; tlbsync; ptesync" : : : "memory");
kvm->arch.tlbie_lock = 0;
} else {
if (need_sync)
asm volatile("ptesync" : : : "memory");
- for (i = 0; i < npages; ++i)
+ for (i = 0; i < npages; ++i) {
asm volatile(PPC_TLBIEL(%0,%1,0,0,0) : :
"r" (rbvalues[i]), "r" (0));
+ trace_tlbie(kvm->arch.lpid, 1, rbvalues[i],
+ 0, 0, 0, 0);
+ }
asm volatile("ptesync" : : : "memory");
}
}
diff --git a/arch/powerpc/kvm/book3s_hv_rm_xive.c b/arch/powerpc/kvm/book3s_hv_rm_xive.c
index abf5f01b6eb1..5b81a807d742 100644
--- a/arch/powerpc/kvm/book3s_hv_rm_xive.c
+++ b/arch/powerpc/kvm/book3s_hv_rm_xive.c
@@ -38,7 +38,6 @@ static inline void __iomem *get_tima_phys(void)
#define __x_tima get_tima_phys()
#define __x_eoi_page(xd) ((void __iomem *)((xd)->eoi_page))
#define __x_trig_page(xd) ((void __iomem *)((xd)->trig_page))
-#define __x_readb __raw_rm_readb
#define __x_writeb __raw_rm_writeb
#define __x_readw __raw_rm_readw
#define __x_readq __raw_rm_readq
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 4888dd494604..ec69fa45d5a2 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -45,7 +45,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_300)
#define NAPPING_NOVCPU 2
/* Stack frame offsets for kvmppc_hv_entry */
-#define SFS 144
+#define SFS 160
#define STACK_SLOT_TRAP (SFS-4)
#define STACK_SLOT_TID (SFS-16)
#define STACK_SLOT_PSSCR (SFS-24)
@@ -54,6 +54,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_300)
#define STACK_SLOT_CIABR (SFS-48)
#define STACK_SLOT_DAWR (SFS-56)
#define STACK_SLOT_DAWRX (SFS-64)
+#define STACK_SLOT_HFSCR (SFS-72)
/*
* Call kvmppc_hv_entry in real mode.
@@ -68,6 +69,7 @@ _GLOBAL_TOC(kvmppc_hv_entry_trampoline)
std r0, PPC_LR_STKOFF(r1)
stdu r1, -112(r1)
mfmsr r10
+ std r10, HSTATE_HOST_MSR(r13)
LOAD_REG_ADDR(r5, kvmppc_call_hv_entry)
li r0,MSR_RI
andc r0,r10,r0
@@ -147,25 +149,28 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
subf r4, r4, r3
mtspr SPRN_DEC, r4
+BEGIN_FTR_SECTION
/* hwthread_req may have got set by cede or no vcpu, so clear it */
li r0, 0
stb r0, HSTATE_HWTHREAD_REQ(r13)
+END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_300)
/*
- * For external and machine check interrupts, we need
- * to call the Linux handler to process the interrupt.
- * We do that by jumping to absolute address 0x500 for
- * external interrupts, or the machine_check_fwnmi label
- * for machine checks (since firmware might have patched
- * the vector area at 0x200). The [h]rfid at the end of the
- * handler will return to the book3s_hv_interrupts.S code.
- * For other interrupts we do the rfid to get back
- * to the book3s_hv_interrupts.S code here.
+ * For external interrupts we need to call the Linux
+ * handler to process the interrupt. We do that by jumping
+ * to absolute address 0x500 for external interrupts.
+ * The [h]rfid at the end of the handler will return to
+ * the book3s_hv_interrupts.S code. For other interrupts
+ * we do the rfid to get back to the book3s_hv_interrupts.S
+ * code here.
*/
ld r8, 112+PPC_LR_STKOFF(r1)
addi r1, r1, 112
ld r7, HSTATE_HOST_MSR(r13)
+ /* Return the trap number on this thread as the return value */
+ mr r3, r12
+
/*
* If we came back from the guest via a relocation-on interrupt,
* we will be in virtual mode at this point, which makes it a
@@ -175,59 +180,20 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
andi. r0, r0, MSR_IR /* in real mode? */
bne .Lvirt_return
- cmpwi cr1, r12, BOOK3S_INTERRUPT_MACHINE_CHECK
- cmpwi r12, BOOK3S_INTERRUPT_EXTERNAL
- beq 11f
- cmpwi r12, BOOK3S_INTERRUPT_H_DOORBELL
- beq 15f /* Invoke the H_DOORBELL handler */
- cmpwi cr2, r12, BOOK3S_INTERRUPT_HMI
- beq cr2, 14f /* HMI check */
-
- /* RFI into the highmem handler, or branch to interrupt handler */
+ /* RFI into the highmem handler */
mfmsr r6
li r0, MSR_RI
andc r6, r6, r0
mtmsrd r6, 1 /* Clear RI in MSR */
mtsrr0 r8
mtsrr1 r7
- beq cr1, 13f /* machine check */
RFI
- /* On POWER7, we have external interrupts set to use HSRR0/1 */
-11: mtspr SPRN_HSRR0, r8
- mtspr SPRN_HSRR1, r7
- ba 0x500
-
-13: b machine_check_fwnmi
-
-14: mtspr SPRN_HSRR0, r8
- mtspr SPRN_HSRR1, r7
- b hmi_exception_after_realmode
-
-15: mtspr SPRN_HSRR0, r8
- mtspr SPRN_HSRR1, r7
- ba 0xe80
-
- /* Virtual-mode return - can't get here for HMI or machine check */
+ /* Virtual-mode return */
.Lvirt_return:
- cmpwi r12, BOOK3S_INTERRUPT_EXTERNAL
- beq 16f
- cmpwi r12, BOOK3S_INTERRUPT_H_DOORBELL
- beq 17f
- andi. r0, r7, MSR_EE /* were interrupts hard-enabled? */
- beq 18f
- mtmsrd r7, 1 /* if so then re-enable them */
-18: mtlr r8
+ mtlr r8
blr
-16: mtspr SPRN_HSRR0, r8 /* jump to reloc-on external vector */
- mtspr SPRN_HSRR1, r7
- b exc_virt_0x4500_hardware_interrupt
-
-17: mtspr SPRN_HSRR0, r8
- mtspr SPRN_HSRR1, r7
- b exc_virt_0x4e80_h_doorbell
-
kvmppc_primary_no_guest:
/* We handle this much like a ceded vcpu */
/* put the HDEC into the DEC, since HDEC interrupts don't wake us */
@@ -349,15 +315,22 @@ kvm_novcpu_exit:
* We come in here when wakened from nap mode.
* Relocation is off and most register values are lost.
* r13 points to the PACA.
+ * r3 contains the SRR1 wakeup value, SRR1 is trashed.
+ * This is not used by ISAv3.0B processors.
*/
.globl kvm_start_guest
kvm_start_guest:
-
/* Set runlatch bit the minute you wake up from nap */
mfspr r0, SPRN_CTRLF
ori r0, r0, 1
mtspr SPRN_CTRLT, r0
+ /*
+ * Could avoid this and pass it through in r3. For now,
+ * code expects it to be in SRR1.
+ */
+ mtspr SPRN_SRR1,r3
+
ld r2,PACATOC(r13)
li r0,KVM_HWTHREAD_IN_KVM
@@ -462,6 +435,9 @@ kvm_secondary_got_guest:
* While waiting we also need to check if we get given a vcpu to run.
*/
kvm_no_guest:
+BEGIN_FTR_SECTION
+ twi 31,0,0
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
lbz r3, HSTATE_HWTHREAD_REQ(r13)
cmpwi r3, 0
bne 53f
@@ -476,13 +452,15 @@ kvm_no_guest:
/*
* We jump to pnv_wakeup_loss, which will return to the caller
* of power7_nap in the powernv cpu offline loop. The value we
- * put in r3 becomes the return value for power7_nap.
+ * put in r3 becomes the return value for power7_nap. pnv_wakeup_loss
+ * requires SRR1 in r12.
*/
li r3, LPCR_PECE0
mfspr r4, SPRN_LPCR
rlwimi r4, r3, 0, LPCR_PECE0 | LPCR_PECE1
mtspr SPRN_LPCR, r4
li r3, 0
+ mfspr r12,SPRN_SRR1
b pnv_wakeup_loss
53: HMT_LOW
@@ -769,6 +747,8 @@ BEGIN_FTR_SECTION
std r6, STACK_SLOT_PSSCR(r1)
std r7, STACK_SLOT_PID(r1)
std r8, STACK_SLOT_IAMR(r1)
+ mfspr r5, SPRN_HFSCR
+ std r5, STACK_SLOT_HFSCR(r1)
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
BEGIN_FTR_SECTION
mfspr r5, SPRN_CIABR
@@ -791,6 +771,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
BEGIN_FTR_SECTION
+ /*
+ * NOTE THAT THIS TRASHES ALL NON-VOLATILE REGISTERS INCLUDING CR
+ */
bl kvmppc_restore_tm
END_FTR_SECTION_IFSET(CPU_FTR_TM)
#endif
@@ -920,8 +903,10 @@ FTR_SECTION_ELSE
ld r5, VCPU_TID(r4)
ld r6, VCPU_PSSCR(r4)
oris r6, r6, PSSCR_EC@h /* This makes stop trap to HV */
+ ld r7, VCPU_HFSCR(r4)
mtspr SPRN_TIDR, r5
mtspr SPRN_PSSCR, r6
+ mtspr SPRN_HFSCR, r7
ALT_FTR_SECTION_END_IFCLR(CPU_FTR_ARCH_300)
8:
@@ -936,7 +921,7 @@ ALT_FTR_SECTION_END_IFCLR(CPU_FTR_ARCH_300)
mftb r7
subf r3,r7,r8
mtspr SPRN_DEC,r3
- stw r3,VCPU_DEC(r4)
+ std r3,VCPU_DEC(r4)
ld r5, VCPU_SPRG0(r4)
ld r6, VCPU_SPRG1(r4)
@@ -1000,7 +985,7 @@ ALT_FTR_SECTION_END_IFCLR(CPU_FTR_ARCH_300)
#ifdef CONFIG_KVM_XICS
/* We are entering the guest on that thread, push VCPU to XIVE */
ld r10, HSTATE_XIVE_TIMA_PHYS(r13)
- cmpldi cr0, r10, r0
+ cmpldi cr0, r10, 0
beq no_xive
ld r11, VCPU_XIVE_SAVED_STATE(r4)
li r9, TM_QW1_OS
@@ -1048,7 +1033,13 @@ kvmppc_cede_reentry: /* r4 = vcpu, r13 = paca */
li r0, BOOK3S_INTERRUPT_EXTERNAL
bne cr1, 12f
mfspr r0, SPRN_DEC
- cmpwi r0, 0
+BEGIN_FTR_SECTION
+ /* On POWER9 check whether the guest has large decrementer enabled */
+ andis. r8, r8, LPCR_LD@h
+ bne 15f
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
+ extsw r0, r0
+15: cmpdi r0, 0
li r0, BOOK3S_INTERRUPT_DECREMENTER
bge 5f
@@ -1058,6 +1049,23 @@ kvmppc_cede_reentry: /* r4 = vcpu, r13 = paca */
mr r9, r4
bl kvmppc_msr_interrupt
5:
+BEGIN_FTR_SECTION
+ b fast_guest_return
+END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_300)
+ /* On POWER9, check for pending doorbell requests */
+ lbz r0, VCPU_DBELL_REQ(r4)
+ cmpwi r0, 0
+ beq fast_guest_return
+ ld r5, HSTATE_KVM_VCORE(r13)
+ /* Set DPDES register so the CPU will take a doorbell interrupt */
+ li r0, 1
+ mtspr SPRN_DPDES, r0
+ std r0, VCORE_DPDES(r5)
+ /* Make sure other cpus see vcore->dpdes set before dbell req clear */
+ lwsync
+ /* Clear the pending doorbell request */
+ li r0, 0
+ stb r0, VCPU_DBELL_REQ(r4)
/*
* Required state:
@@ -1113,6 +1121,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
BEGIN_FTR_SECTION
mtspr SPRN_PPR, r0
END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
+
+/* Move canary into DSISR to check for later */
+BEGIN_FTR_SECTION
+ li r0, 0x7fff
+ mtspr SPRN_HDSISR, r0
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
+
ld r0, VCPU_GPR(R0)(r4)
ld r4, VCPU_GPR(R4)(r4)
@@ -1232,6 +1247,15 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
stw r12,VCPU_TRAP(r9)
+ /*
+ * Now that we have saved away SRR0/1 and HSRR0/1,
+ * interrupts are recoverable in principle, so set MSR_RI.
+ * This becomes important for relocation-on interrupts from
+ * the guest, which we can get in radix mode on POWER9.
+ */
+ li r0, MSR_RI
+ mtmsrd r0, 1
+
#ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
addi r3, r9, VCPU_TB_RMINTR
mr r4, r9
@@ -1272,7 +1296,8 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
cmpwi r12,BOOK3S_INTERRUPT_HV_DECREMENTER
bne 2f
mfspr r3,SPRN_HDEC
- cmpwi r3,0
+ EXTEND_HDEC(r3)
+ cmpdi r3,0
mr r4,r9
bge fast_guest_return
2:
@@ -1283,11 +1308,21 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
/* Hypervisor doorbell - exit only if host IPI flag set */
cmpwi r12, BOOK3S_INTERRUPT_H_DOORBELL
bne 3f
+BEGIN_FTR_SECTION
+ PPC_MSGSYNC
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
lbz r0, HSTATE_HOST_IPI(r13)
cmpwi r0, 0
beq 4f
b guest_exit_cont
3:
+ /* If it's a hypervisor facility unavailable interrupt, save HFSCR */
+ cmpwi r12, BOOK3S_INTERRUPT_H_FAC_UNAVAIL
+ bne 14f
+ mfspr r3, SPRN_HFSCR
+ std r3, VCPU_HFSCR(r9)
+ b guest_exit_cont
+14:
/* External interrupt ? */
cmpwi r12, BOOK3S_INTERRUPT_EXTERNAL
bne+ guest_exit_cont
@@ -1428,12 +1463,14 @@ mc_cont:
ori r6,r6,1
mtspr SPRN_CTRLT,r6
4:
- /* Read the guest SLB and save it away */
+ /* Check if we are running hash or radix and store it in cr2 */
ld r5, VCPU_KVM(r9)
lbz r0, KVM_RADIX(r5)
- cmpwi r0, 0
+ cmpwi cr2,r0,0
+
+ /* Read the guest SLB and save it away */
li r5, 0
- bne 3f /* for radix, save 0 entries */
+ bne cr2, 3f /* for radix, save 0 entries */
lwz r0,VCPU_SLB_NR(r9) /* number of entries in SLB */
mtctr r0
li r6,0
@@ -1475,12 +1512,18 @@ mc_cont:
mtspr SPRN_SPURR,r4
/* Save DEC */
+ ld r3, HSTATE_KVM_VCORE(r13)
mfspr r5,SPRN_DEC
mftb r6
+ /* On P9, if the guest has large decr enabled, don't sign extend */
+BEGIN_FTR_SECTION
+ ld r4, VCORE_LPCR(r3)
+ andis. r4, r4, LPCR_LD@h
+ bne 16f
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
extsw r5,r5
- add r5,r5,r6
+16: add r5,r5,r6
/* r5 is a guest timebase value here, convert to host TB */
- ld r3,HSTATE_KVM_VCORE(r13)
ld r4,VCORE_TB_OFFSET(r3)
subf r5,r4,r5
std r5,VCPU_DEC_EXPIRES(r9)
@@ -1525,6 +1568,9 @@ FTR_SECTION_ELSE
rldicl r6, r6, 4, 50 /* r6 &= PSSCR_GUEST_VIS */
rotldi r6, r6, 60
std r6, VCPU_PSSCR(r9)
+ /* Restore host HFSCR value */
+ ld r7, STACK_SLOT_HFSCR(r1)
+ mtspr SPRN_HFSCR, r7
ALT_FTR_SECTION_END_IFCLR(CPU_FTR_ARCH_300)
/*
* Restore various registers to 0, where non-zero values
@@ -1594,6 +1640,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_300)
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
BEGIN_FTR_SECTION
+ /*
+ * NOTE THAT THIS TRASHES ALL NON-VOLATILE REGISTERS INCLUDING CR
+ */
bl kvmppc_save_tm
END_FTR_SECTION_IFSET(CPU_FTR_TM)
#endif
@@ -1688,11 +1737,6 @@ BEGIN_FTR_SECTION_NESTED(96)
END_FTR_SECTION_NESTED(CPU_FTR_ARCH_300, 0, 96)
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
22:
- /* Clear out SLB */
- li r5,0
- slbmte r5,r5
- slbia
- ptesync
/* Restore host values of some registers */
BEGIN_FTR_SECTION
@@ -1713,10 +1757,59 @@ BEGIN_FTR_SECTION
mtspr SPRN_PID, r7
mtspr SPRN_IAMR, r8
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
+
+#ifdef CONFIG_PPC_RADIX_MMU
+ /*
+ * Are we running hash or radix ?
+ */
+ ld r5, VCPU_KVM(r9)
+ lbz r0, KVM_RADIX(r5)
+ cmpwi cr2, r0, 0
+ beq cr2, 3f
+
+ /* Radix: Handle the case where the guest used an illegal PID */
+ LOAD_REG_ADDR(r4, mmu_base_pid)
+ lwz r3, VCPU_GUEST_PID(r9)
+ lwz r5, 0(r4)
+ cmpw cr0,r3,r5
+ blt 2f
+
+ /*
+ * Illegal PID, the HW might have prefetched and cached in the TLB
+ * some translations for the LPID 0 / guest PID combination which
+ * Linux doesn't know about, so we need to flush that PID out of
+ * the TLB. First we need to set LPIDR to 0 so tlbiel applies to
+ * the right context.
+ */
+ li r0,0
+ mtspr SPRN_LPID,r0
+ isync
+
+ /* Then do a congruence class local flush */
+ ld r6,VCPU_KVM(r9)
+ lwz r0,KVM_TLB_SETS(r6)
+ mtctr r0
+ li r7,0x400 /* IS field = 0b01 */
+ ptesync
+ sldi r0,r3,32 /* RS has PID */
+1: PPC_TLBIEL(7,0,2,1,1) /* RIC=2, PRS=1, R=1 */
+ addi r7,r7,0x1000
+ bdnz 1b
+ ptesync
+
+2: /* Flush the ERAT on radix P9 DD1 guest exit */
BEGIN_FTR_SECTION
PPC_INVALIDATE_ERAT
END_FTR_SECTION_IFSET(CPU_FTR_POWER9_DD1)
+ b 4f
+#endif /* CONFIG_PPC_RADIX_MMU */
+ /* Hash: clear out SLB */
+3: li r5,0
+ slbmte r5,r5
+ slbia
+ ptesync
+4:
/*
* POWER7/POWER8 guest -> host partition switch code.
* We don't have to lock against tlbies but we do
@@ -1870,9 +1963,14 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_TYPE_RADIX)
kvmppc_hdsi:
ld r3, VCPU_KVM(r9)
lbz r0, KVM_RADIX(r3)
- cmpwi r0, 0
mfspr r4, SPRN_HDAR
mfspr r6, SPRN_HDSISR
+BEGIN_FTR_SECTION
+ /* Look for DSISR canary. If we find it, retry instruction */
+ cmpdi r6, 0x7fff
+ beq 6f
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
+ cmpwi r0, 0
bne .Lradix_hdsi /* on radix, just save DAR/DSISR/ASDR */
/* HPTE not found fault or protection fault? */
andis. r0, r6, (DSISR_NOHPTE | DSISR_PROTFAULT)@h
@@ -2389,6 +2487,9 @@ _GLOBAL(kvmppc_h_cede) /* r3 = vcpu pointer, r11 = msr, r13 = paca */
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
BEGIN_FTR_SECTION
+ /*
+ * NOTE THAT THIS TRASHES ALL NON-VOLATILE REGISTERS INCLUDING CR
+ */
ld r9, HSTATE_KVM_VCPU(r13)
bl kvmppc_save_tm
END_FTR_SECTION_IFSET(CPU_FTR_TM)
@@ -2402,8 +2503,15 @@ END_FTR_SECTION_IFSET(CPU_FTR_TM)
mfspr r3, SPRN_DEC
mfspr r4, SPRN_HDEC
mftb r5
+BEGIN_FTR_SECTION
+ /* On P9 check whether the guest has large decrementer mode enabled */
+ ld r6, HSTATE_KVM_VCORE(r13)
+ ld r6, VCORE_LPCR(r6)
+ andis. r6, r6, LPCR_LD@h
+ bne 68f
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
extsw r3, r3
- EXTEND_HDEC(r4)
+68: EXTEND_HDEC(r4)
cmpd r3, r4
ble 67f
mtspr SPRN_DEC, r4
@@ -2435,8 +2543,10 @@ kvm_do_nap:
clrrdi r0, r0, 1
mtspr SPRN_CTRLT, r0
+BEGIN_FTR_SECTION
li r0,1
stb r0,HSTATE_HWTHREAD_REQ(r13)
+END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_300)
mfspr r5,SPRN_LPCR
ori r5,r5,LPCR_PECE0 | LPCR_PECE1
BEGIN_FTR_SECTION
@@ -2492,6 +2602,9 @@ kvm_end_cede:
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
BEGIN_FTR_SECTION
+ /*
+ * NOTE THAT THIS TRASHES ALL NON-VOLATILE REGISTERS INCLUDING CR
+ */
bl kvmppc_restore_tm
END_FTR_SECTION_IFSET(CPU_FTR_TM)
#endif
@@ -2589,22 +2702,32 @@ machine_check_realmode:
ld r9, HSTATE_KVM_VCPU(r13)
li r12, BOOK3S_INTERRUPT_MACHINE_CHECK
/*
- * Deliver unhandled/fatal (e.g. UE) MCE errors to guest through
- * machine check interrupt (set HSRR0 to 0x200). And for handled
- * errors (no-fatal), just go back to guest execution with current
- * HSRR0 instead of exiting guest. This new approach will inject
- * machine check to guest for fatal error causing guest to crash.
- *
- * The old code used to return to host for unhandled errors which
- * was causing guest to hang with soft lockups inside guest and
- * makes it difficult to recover guest instance.
+ * For the guest that is FWNMI capable, deliver all the MCE errors
+ * (handled/unhandled) by exiting the guest with KVM_EXIT_NMI exit
+ * reason. This new approach injects machine check errors in guest
+ * address space to guest with additional information in the form
+ * of RTAS event, thus enabling guest kernel to suitably handle
+ * such errors.
*
+ * For the guest that is not FWNMI capable (old QEMU) fallback
+ * to old behaviour for backward compatibility:
+ * Deliver unhandled/fatal (e.g. UE) MCE errors to guest either
+ * through machine check interrupt (set HSRR0 to 0x200).
+ * For handled errors (no-fatal), just go back to guest execution
+ * with current HSRR0.
* if we receive machine check with MSR(RI=0) then deliver it to
* guest as machine check causing guest to crash.
*/
ld r11, VCPU_MSR(r9)
rldicl. r0, r11, 64-MSR_HV_LG, 63 /* check if it happened in HV mode */
bne mc_cont /* if so, exit to host */
+ /* Check if guest is capable of handling NMI exit */
+ ld r10, VCPU_KVM(r9)
+ lbz r10, KVM_FWNMI(r10)
+ cmpdi r10, 1 /* FWNMI capable? */
+ beq mc_cont /* if so, exit with KVM_EXIT_NMI. */
+
+ /* if not, fall through for backward compatibility. */
andi. r10, r11, MSR_RI /* check for unrecoverable exception */
beq 1f /* Deliver a machine check to guest */
ld r10, VCPU_PC(r9)
diff --git a/arch/powerpc/kvm/book3s_xive.c b/arch/powerpc/kvm/book3s_xive.c
index ffe1da95033a..bf457843e032 100644
--- a/arch/powerpc/kvm/book3s_xive.c
+++ b/arch/powerpc/kvm/book3s_xive.c
@@ -48,7 +48,6 @@
#define __x_tima xive_tima
#define __x_eoi_page(xd) ((void __iomem *)((xd)->eoi_mmio))
#define __x_trig_page(xd) ((void __iomem *)((xd)->trig_mmio))
-#define __x_readb __raw_readb
#define __x_writeb __raw_writeb
#define __x_readw __raw_readw
#define __x_readq __raw_readq
@@ -623,7 +622,7 @@ int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server,
return -EINVAL;
state = &sb->irq_state[idx];
arch_spin_lock(&sb->lock);
- *server = state->guest_server;
+ *server = state->act_server;
*priority = state->guest_priority;
arch_spin_unlock(&sb->lock);
@@ -1257,8 +1256,8 @@ static void xive_pre_save_scan(struct kvmppc_xive *xive)
if (!xc)
continue;
for (j = 0; j < KVMPPC_XIVE_Q_COUNT; j++) {
- if (xc->queues[i].qpage)
- xive_pre_save_queue(xive, &xc->queues[i]);
+ if (xc->queues[j].qpage)
+ xive_pre_save_queue(xive, &xc->queues[j]);
}
}
@@ -1332,7 +1331,7 @@ static int xive_get_source(struct kvmppc_xive *xive, long irq, u64 addr)
xive->saved_src_count++;
/* Convert saved state into something compatible with xics */
- val = state->guest_server;
+ val = state->act_server;
prio = state->saved_scan_prio;
if (prio == MASKED) {
@@ -1508,7 +1507,6 @@ static int xive_set_source(struct kvmppc_xive *xive, long irq, u64 addr)
/* First convert prio and mark interrupt as untargetted */
act_prio = xive_prio_from_guest(guest_prio);
state->act_priority = MASKED;
- state->guest_server = server;
/*
* We need to drop the lock due to the mutex below. Hopefully
diff --git a/arch/powerpc/kvm/book3s_xive.h b/arch/powerpc/kvm/book3s_xive.h
index 5938f7644dc1..6ba63f8e8a61 100644
--- a/arch/powerpc/kvm/book3s_xive.h
+++ b/arch/powerpc/kvm/book3s_xive.h
@@ -35,7 +35,6 @@ struct kvmppc_xive_irq_state {
struct xive_irq_data *pt_data; /* XIVE Pass-through associated data */
/* Targetting as set by guest */
- u32 guest_server; /* Current guest selected target */
u8 guest_priority; /* Guest set priority */
u8 saved_priority; /* Saved priority when masking */
diff --git a/arch/powerpc/kvm/book3s_xive_template.c b/arch/powerpc/kvm/book3s_xive_template.c
index 4636ca6e7d38..c7a5deadd1cc 100644
--- a/arch/powerpc/kvm/book3s_xive_template.c
+++ b/arch/powerpc/kvm/book3s_xive_template.c
@@ -16,7 +16,23 @@ static void GLUE(X_PFX,ack_pending)(struct kvmppc_xive_vcpu *xc)
u8 cppr;
u16 ack;
- /* XXX DD1 bug workaround: Check PIPR vs. CPPR first ! */
+ /*
+ * Ensure any previous store to CPPR is ordered vs.
+ * the subsequent loads from PIPR or ACK.
+ */
+ eieio();
+
+ /*
+ * DD1 bug workaround: If PIPR is less favored than CPPR
+ * ignore the interrupt or we might incorrectly lose an IPB
+ * bit.
+ */
+ if (cpu_has_feature(CPU_FTR_POWER9_DD1)) {
+ __be64 qw1 = __x_readq(__x_tima + TM_QW1_OS);
+ u8 pipr = be64_to_cpu(qw1) & 0xff;
+ if (pipr >= xc->hw_cppr)
+ return;
+ }
/* Perform the acknowledge OS to register cycle. */
ack = be16_to_cpu(__x_readw(__x_tima + TM_SPC_ACK_OS_REG));
@@ -235,6 +251,11 @@ skip_ipi:
/*
* If we found an interrupt, adjust what the guest CPPR should
* be as if we had just fetched that interrupt from HW.
+ *
+ * Note: This can only make xc->cppr smaller as the previous
+ * loop will only exit with hirq != 0 if prio is lower than
+ * the current xc->cppr. Thus we don't need to re-check xc->mfrr
+ * for pending IPIs.
*/
if (hirq)
xc->cppr = prio;
@@ -316,7 +337,6 @@ X_STATIC unsigned long GLUE(X_PFX,h_ipoll)(struct kvm_vcpu *vcpu, unsigned long
struct kvmppc_xive_vcpu *xc = vcpu->arch.xive_vcpu;
u8 pending = xc->pending;
u32 hirq;
- u8 pipr;
pr_devel("H_IPOLL(server=%ld)\n", server);
@@ -333,7 +353,8 @@ X_STATIC unsigned long GLUE(X_PFX,h_ipoll)(struct kvm_vcpu *vcpu, unsigned long
pending = 0xff;
} else {
/* Grab pending interrupt if any */
- pipr = __x_readb(__x_tima + TM_QW1_OS + TM_PIPR);
+ __be64 qw1 = __x_readq(__x_tima + TM_QW1_OS);
+ u8 pipr = be64_to_cpu(qw1) & 0xff;
if (pipr < 8)
pending |= 1 << pipr;
}
@@ -381,6 +402,12 @@ X_STATIC int GLUE(X_PFX,h_cppr)(struct kvm_vcpu *vcpu, unsigned long cppr)
xc->cppr = cppr;
/*
+ * Order the above update of xc->cppr with the subsequent
+ * read of xc->mfrr inside push_pending_to_hw()
+ */
+ smp_mb();
+
+ /*
* We are masking less, we need to look for pending things
* to deliver and set VP pending bits accordingly to trigger
* a new interrupt otherwise we might miss MFRR changes for
@@ -420,21 +447,37 @@ X_STATIC int GLUE(X_PFX,h_eoi)(struct kvm_vcpu *vcpu, unsigned long xirr)
* used to signal MFRR changes is EOId when fetched from
* the queue.
*/
- if (irq == XICS_IPI || irq == 0)
+ if (irq == XICS_IPI || irq == 0) {
+ /*
+ * This barrier orders the setting of xc->cppr vs.
+ * subsquent test of xc->mfrr done inside
+ * scan_interrupts and push_pending_to_hw
+ */
+ smp_mb();
goto bail;
+ }
/* Find interrupt source */
sb = kvmppc_xive_find_source(xive, irq, &src);
if (!sb) {
pr_devel(" source not found !\n");
rc = H_PARAMETER;
+ /* Same as above */
+ smp_mb();
goto bail;
}
state = &sb->irq_state[src];
kvmppc_xive_select_irq(state, &hw_num, &xd);
state->in_eoi = true;
- mb();
+
+ /*
+ * This barrier orders both setting of in_eoi above vs,
+ * subsequent test of guest_priority, and the setting
+ * of xc->cppr vs. subsquent test of xc->mfrr done inside
+ * scan_interrupts and push_pending_to_hw
+ */
+ smp_mb();
again:
if (state->guest_priority == MASKED) {
@@ -461,6 +504,14 @@ again:
}
+ /*
+ * This barrier orders the above guest_priority check
+ * and spin_lock/unlock with clearing in_eoi below.
+ *
+ * It also has to be a full mb() as it must ensure
+ * the MMIOs done in source_eoi() are completed before
+ * state->in_eoi is visible.
+ */
mb();
state->in_eoi = false;
bail:
@@ -495,6 +546,18 @@ X_STATIC int GLUE(X_PFX,h_ipi)(struct kvm_vcpu *vcpu, unsigned long server,
/* Locklessly write over MFRR */
xc->mfrr = mfrr;
+ /*
+ * The load of xc->cppr below and the subsequent MMIO store
+ * to the IPI must happen after the above mfrr update is
+ * globally visible so that:
+ *
+ * - Synchronize with another CPU doing an H_EOI or a H_CPPR
+ * updating xc->cppr then reading xc->mfrr.
+ *
+ * - The target of the IPI sees the xc->mfrr update
+ */
+ mb();
+
/* Shoot the IPI if most favored than target cppr */
if (mfrr < xc->cppr)
__x_writeq(0, __x_trig_page(&xc->vp_ipi_data));
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 3eaac3809977..071b87ee682f 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -687,7 +687,7 @@ int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu)
kvmppc_core_check_exceptions(vcpu);
- if (vcpu->requests) {
+ if (kvm_request_pending(vcpu)) {
/* Exception delivery raised request; start over */
return 1;
}
diff --git a/arch/powerpc/kvm/e500.c b/arch/powerpc/kvm/e500.c
index 32fdab57d604..f9f6468f4171 100644
--- a/arch/powerpc/kvm/e500.c
+++ b/arch/powerpc/kvm/e500.c
@@ -455,16 +455,20 @@ static struct kvm_vcpu *kvmppc_core_vcpu_create_e500(struct kvm *kvm,
if (err)
goto free_vcpu;
- if (kvmppc_e500_id_table_alloc(vcpu_e500) == NULL)
+ if (kvmppc_e500_id_table_alloc(vcpu_e500) == NULL) {
+ err = -ENOMEM;
goto uninit_vcpu;
+ }
err = kvmppc_e500_tlb_init(vcpu_e500);
if (err)
goto uninit_id;
vcpu->arch.shared = (void*)__get_free_page(GFP_KERNEL|__GFP_ZERO);
- if (!vcpu->arch.shared)
+ if (!vcpu->arch.shared) {
+ err = -ENOMEM;
goto uninit_tlb;
+ }
return vcpu;
diff --git a/arch/powerpc/kvm/e500_mmu_host.c b/arch/powerpc/kvm/e500_mmu_host.c
index 77fd043b3ecc..c6c734424c70 100644
--- a/arch/powerpc/kvm/e500_mmu_host.c
+++ b/arch/powerpc/kvm/e500_mmu_host.c
@@ -30,6 +30,7 @@
#include <linux/vmalloc.h>
#include <linux/hugetlb.h>
#include <asm/kvm_ppc.h>
+#include <asm/pte-walk.h>
#include "e500.h"
#include "timing.h"
@@ -476,7 +477,7 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
* can't run hence pfn won't change.
*/
local_irq_save(flags);
- ptep = find_linux_pte_or_hugepte(pgdir, hva, NULL, NULL);
+ ptep = find_linux_pte(pgdir, hva, NULL, NULL);
if (ptep) {
pte_t pte = READ_ONCE(*ptep);
diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c
index f48a0c22e8f9..d0b6b5788afc 100644
--- a/arch/powerpc/kvm/e500mc.c
+++ b/arch/powerpc/kvm/e500mc.c
@@ -331,8 +331,10 @@ static struct kvm_vcpu *kvmppc_core_vcpu_create_e500mc(struct kvm *kvm,
goto uninit_vcpu;
vcpu->arch.shared = (void *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
- if (!vcpu->arch.shared)
+ if (!vcpu->arch.shared) {
+ err = -ENOMEM;
goto uninit_tlb;
+ }
return vcpu;
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index c873ffe55362..4d8b4d6cebff 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -39,7 +39,7 @@ void kvmppc_emulate_dec(struct kvm_vcpu *vcpu)
unsigned long dec_nsec;
unsigned long long dec_time;
- pr_debug("mtDEC: %x\n", vcpu->arch.dec);
+ pr_debug("mtDEC: %lx\n", vcpu->arch.dec);
hrtimer_try_to_cancel(&vcpu->arch.dec_timer);
#ifdef CONFIG_PPC_BOOK3S
@@ -109,7 +109,7 @@ static int kvmppc_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
case SPRN_TBWU: break;
case SPRN_DEC:
- vcpu->arch.dec = spr_val;
+ vcpu->arch.dec = (u32) spr_val;
kvmppc_emulate_dec(vcpu);
break;
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 7f71ab5fcad1..3480faaf1ef8 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -55,8 +55,12 @@ EXPORT_SYMBOL_GPL(kvmppc_pr_ops);
int kvm_arch_vcpu_runnable(struct kvm_vcpu *v)
{
- return !!(v->arch.pending_exceptions) ||
- v->requests;
+ return !!(v->arch.pending_exceptions) || kvm_request_pending(v);
+}
+
+bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu)
+{
+ return false;
}
int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
@@ -108,7 +112,7 @@ int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu)
*/
smp_mb();
- if (vcpu->requests) {
+ if (kvm_request_pending(vcpu)) {
/* Make sure we process requests preemptable */
local_irq_enable();
trace_kvm_check_requests(vcpu);
@@ -554,13 +558,28 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
case KVM_CAP_PPC_SMT:
r = 0;
- if (hv_enabled) {
+ if (kvm) {
+ if (kvm->arch.emul_smt_mode > 1)
+ r = kvm->arch.emul_smt_mode;
+ else
+ r = kvm->arch.smt_mode;
+ } else if (hv_enabled) {
if (cpu_has_feature(CPU_FTR_ARCH_300))
r = 1;
else
r = threads_per_subcore;
}
break;
+ case KVM_CAP_PPC_SMT_POSSIBLE:
+ r = 1;
+ if (hv_enabled) {
+ if (!cpu_has_feature(CPU_FTR_ARCH_300))
+ r = ((threads_per_subcore << 1) - 1);
+ else
+ /* P9 can emulate dbells, so allow any mode */
+ r = 8 | 4 | 2 | 1;
+ }
+ break;
case KVM_CAP_PPC_RMA:
r = 0;
break;
@@ -619,6 +638,11 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
r = !!hv_enabled && !cpu_has_feature(CPU_FTR_ARCH_300);
break;
#endif
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+ case KVM_CAP_PPC_FWNMI:
+ r = hv_enabled;
+ break;
+#endif
case KVM_CAP_PPC_HTM:
r = cpu_has_feature(CPU_FTR_TM_COMP) &&
is_kvmppc_hv_enabled(kvm);
@@ -1538,6 +1562,15 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
break;
}
#endif /* CONFIG_KVM_XICS */
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+ case KVM_CAP_PPC_FWNMI:
+ r = -EINVAL;
+ if (!is_kvmppc_hv_enabled(vcpu->kvm))
+ break;
+ r = 0;
+ vcpu->kvm->arch.fwnmi_enabled = true;
+ break;
+#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
default:
r = -EINVAL;
break;
@@ -1712,6 +1745,15 @@ static int kvm_vm_ioctl_enable_cap(struct kvm *kvm,
r = 0;
break;
}
+ case KVM_CAP_PPC_SMT: {
+ unsigned long mode = cap->args[0];
+ unsigned long flags = cap->args[1];
+
+ r = -EINVAL;
+ if (kvm->arch.kvm_ops->set_smt_mode)
+ r = kvm->arch.kvm_ops->set_smt_mode(kvm, mode, flags);
+ break;
+ }
#endif
default:
r = -EINVAL;
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index ed7dfce331e0..50d5bf954cff 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -9,10 +9,17 @@ ccflags-$(CONFIG_PPC64) := $(NO_MINIMAL_TOC)
CFLAGS_REMOVE_code-patching.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_feature-fixups.o = $(CC_FLAGS_FTRACE)
-obj-y += string.o alloc.o crtsavres.o code-patching.o \
- feature-fixups.o
+obj-y += string.o alloc.o code-patching.o feature-fixups.o
-obj-$(CONFIG_PPC32) += div64.o copy_32.o
+obj-$(CONFIG_PPC32) += div64.o copy_32.o crtsavres.o
+
+# See corresponding test in arch/powerpc/Makefile
+# 64-bit linker creates .sfpr on demand for final link (vmlinux),
+# so it is only needed for modules, and only for older linkers which
+# do not support --save-restore-funcs
+ifeq ($(call ld-ifversion, -lt, 225000000, y),y)
+extra-$(CONFIG_PPC64) += crtsavres.o
+endif
obj64-y += copypage_64.o copyuser_64.o mem_64.o hweight_64.o \
copyuser_power7.o string_64.o copypage_power7.o memcpy_power7.o \
@@ -24,13 +31,14 @@ obj64-$(CONFIG_KPROBES_SANITY_TEST) += test_emulate_step.o
obj-y += checksum_$(BITS).o checksum_wrappers.o
-obj-$(CONFIG_PPC_EMULATE_SSTEP) += sstep.o ldstfp.o
+obj-y += sstep.o ldstfp.o quad.o
+obj64-y += quad.o
obj-$(CONFIG_PPC_LIB_RHEAP) += rheap.o
obj-$(CONFIG_FTR_FIXUP_SELFTEST) += feature-fixups-test.o
-obj-$(CONFIG_ALTIVEC) += xor_vmx.o
+obj-$(CONFIG_ALTIVEC) += xor_vmx.o xor_vmx_glue.o
CFLAGS_xor_vmx.o += -maltivec $(call cc-option,-mabi=altivec)
obj-$(CONFIG_PPC64) += $(obj64-y)
diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c
index 500b0f6a0b64..c9de03e0c1f1 100644
--- a/arch/powerpc/lib/code-patching.c
+++ b/arch/powerpc/lib/code-patching.c
@@ -12,23 +12,186 @@
#include <linux/vmalloc.h>
#include <linux/init.h>
#include <linux/mm.h>
-#include <asm/page.h>
-#include <asm/code-patching.h>
+#include <linux/cpuhotplug.h>
+#include <linux/slab.h>
#include <linux/uaccess.h>
#include <linux/kprobes.h>
+#include <asm/pgtable.h>
+#include <asm/tlbflush.h>
+#include <asm/page.h>
+#include <asm/code-patching.h>
-int patch_instruction(unsigned int *addr, unsigned int instr)
+static int __patch_instruction(unsigned int *addr, unsigned int instr)
{
int err;
__put_user_size(instr, addr, 4, err);
if (err)
return err;
- asm ("dcbst 0, %0; sync; icbi 0,%0; sync; isync" : : "r" (addr));
+
+ asm ("dcbst 0, %0; sync; icbi 0,%0; sync; isync" :: "r" (addr));
+
+ return 0;
+}
+
+#ifdef CONFIG_STRICT_KERNEL_RWX
+static DEFINE_PER_CPU(struct vm_struct *, text_poke_area);
+
+static int text_area_cpu_up(unsigned int cpu)
+{
+ struct vm_struct *area;
+
+ area = get_vm_area(PAGE_SIZE, VM_ALLOC);
+ if (!area) {
+ WARN_ONCE(1, "Failed to create text area for cpu %d\n",
+ cpu);
+ return -1;
+ }
+ this_cpu_write(text_poke_area, area);
+
+ return 0;
+}
+
+static int text_area_cpu_down(unsigned int cpu)
+{
+ free_vm_area(this_cpu_read(text_poke_area));
+ return 0;
+}
+
+/*
+ * Run as a late init call. This allows all the boot time patching to be done
+ * simply by patching the code, and then we're called here prior to
+ * mark_rodata_ro(), which happens after all init calls are run. Although
+ * BUG_ON() is rude, in this case it should only happen if ENOMEM, and we judge
+ * it as being preferable to a kernel that will crash later when someone tries
+ * to use patch_instruction().
+ */
+static int __init setup_text_poke_area(void)
+{
+ BUG_ON(!cpuhp_setup_state(CPUHP_AP_ONLINE_DYN,
+ "powerpc/text_poke:online", text_area_cpu_up,
+ text_area_cpu_down));
+
+ return 0;
+}
+late_initcall(setup_text_poke_area);
+
+/*
+ * This can be called for kernel text or a module.
+ */
+static int map_patch_area(void *addr, unsigned long text_poke_addr)
+{
+ unsigned long pfn;
+ int err;
+
+ if (is_vmalloc_addr(addr))
+ pfn = vmalloc_to_pfn(addr);
+ else
+ pfn = __pa_symbol(addr) >> PAGE_SHIFT;
+
+ err = map_kernel_page(text_poke_addr, (pfn << PAGE_SHIFT),
+ pgprot_val(PAGE_KERNEL));
+
+ pr_devel("Mapped addr %lx with pfn %lx:%d\n", text_poke_addr, pfn, err);
+ if (err)
+ return -1;
+
return 0;
}
+static inline int unmap_patch_area(unsigned long addr)
+{
+ pte_t *ptep;
+ pmd_t *pmdp;
+ pud_t *pudp;
+ pgd_t *pgdp;
+
+ pgdp = pgd_offset_k(addr);
+ if (unlikely(!pgdp))
+ return -EINVAL;
+
+ pudp = pud_offset(pgdp, addr);
+ if (unlikely(!pudp))
+ return -EINVAL;
+
+ pmdp = pmd_offset(pudp, addr);
+ if (unlikely(!pmdp))
+ return -EINVAL;
+
+ ptep = pte_offset_kernel(pmdp, addr);
+ if (unlikely(!ptep))
+ return -EINVAL;
+
+ pr_devel("clearing mm %p, pte %p, addr %lx\n", &init_mm, ptep, addr);
+
+ /*
+ * In hash, pte_clear flushes the tlb, in radix, we have to
+ */
+ pte_clear(&init_mm, addr, ptep);
+ flush_tlb_kernel_range(addr, addr + PAGE_SIZE);
+
+ return 0;
+}
+
+int patch_instruction(unsigned int *addr, unsigned int instr)
+{
+ int err;
+ unsigned int *dest = NULL;
+ unsigned long flags;
+ unsigned long text_poke_addr;
+ unsigned long kaddr = (unsigned long)addr;
+
+ /*
+ * During early early boot patch_instruction is called
+ * when text_poke_area is not ready, but we still need
+ * to allow patching. We just do the plain old patching
+ * We use slab_is_available and per cpu read * via this_cpu_read
+ * of text_poke_area. Per-CPU areas might not be up early
+ * this can create problems with just using this_cpu_read()
+ */
+ if (!slab_is_available() || !this_cpu_read(text_poke_area))
+ return __patch_instruction(addr, instr);
+
+ local_irq_save(flags);
+
+ text_poke_addr = (unsigned long)__this_cpu_read(text_poke_area)->addr;
+ if (map_patch_area(addr, text_poke_addr)) {
+ err = -1;
+ goto out;
+ }
+
+ dest = (unsigned int *)(text_poke_addr) +
+ ((kaddr & ~PAGE_MASK) / sizeof(unsigned int));
+
+ /*
+ * We use __put_user_size so that we can handle faults while
+ * writing to dest and return err to handle faults gracefully
+ */
+ __put_user_size(instr, dest, 4, err);
+ if (!err)
+ asm ("dcbst 0, %0; sync; icbi 0,%0; icbi 0,%1; sync; isync"
+ ::"r" (dest), "r"(addr));
+
+ err = unmap_patch_area(text_poke_addr);
+ if (err)
+ pr_warn("failed to unmap %lx\n", text_poke_addr);
+
+out:
+ local_irq_restore(flags);
+
+ return err;
+}
+#else /* !CONFIG_STRICT_KERNEL_RWX */
+
+int patch_instruction(unsigned int *addr, unsigned int instr)
+{
+ return __patch_instruction(addr, instr);
+}
+
+#endif /* CONFIG_STRICT_KERNEL_RWX */
+NOKPROBE_SYMBOL(patch_instruction);
+
int patch_branch(unsigned int *addr, unsigned long target, int flags)
{
return patch_instruction(addr, create_branch(addr, target, flags));
diff --git a/arch/powerpc/lib/copy_32.S b/arch/powerpc/lib/copy_32.S
index 8aedbb5f4b86..da425bb6b369 100644
--- a/arch/powerpc/lib/copy_32.S
+++ b/arch/powerpc/lib/copy_32.S
@@ -67,6 +67,20 @@ CACHELINE_BYTES = L1_CACHE_BYTES
LG_CACHELINE_BYTES = L1_CACHE_SHIFT
CACHELINE_MASK = (L1_CACHE_BYTES-1)
+_GLOBAL(memset16)
+ rlwinm. r0 ,r5, 31, 1, 31
+ addi r6, r3, -4
+ beq- 2f
+ rlwimi r4 ,r4 ,16 ,0 ,15
+ mtctr r0
+1: stwu r4, 4(r6)
+ bdnz 1b
+2: andi. r0, r5, 1
+ beqlr
+ sth r4, 4(r6)
+ blr
+EXPORT_SYMBOL(memset16)
+
/*
* Use dcbz on the complete cache lines in the destination
* to set them to zero. This requires that the destination
@@ -77,22 +91,24 @@ CACHELINE_MASK = (L1_CACHE_BYTES-1)
* replaced by a nop once cache is active. This is done in machine_init()
*/
_GLOBAL(memset)
+ cmplwi 0,r5,4
+ blt 7f
+
rlwimi r4,r4,8,16,23
rlwimi r4,r4,16,0,15
- addi r6,r3,-4
- cmplwi 0,r5,4
- blt 7f
- stwu r4,4(r6)
+ stw r4,0(r3)
beqlr
- andi. r0,r6,3
+ andi. r0,r3,3
add r5,r0,r5
- subf r6,r0,r6
+ subf r6,r0,r3
cmplwi 0,r4,0
- bne 2f /* Use normal procedure if r4 is not zero */
-EXPORT_SYMBOL(memset)
+ /*
+ * Skip optimised bloc until cache is enabled. Will be replaced
+ * by 'bne' during boot to use normal procedure if r4 is not zero
+ */
_GLOBAL(memset_nocache_branch)
- b 2f /* Skip optimised bloc until cache is enabled */
+ b 2f
clrlwi r7,r6,32-LG_CACHELINE_BYTES
add r8,r7,r5
@@ -119,7 +135,6 @@ _GLOBAL(memset_nocache_branch)
1: stwu r4,4(r6)
bdnz 1b
6: andi. r5,r5,3
-7: cmpwi 0,r5,0
beqlr
mtctr r5
addi r6,r6,3
@@ -127,6 +142,15 @@ _GLOBAL(memset_nocache_branch)
bdnz 8b
blr
+7: cmpwi 0,r5,0
+ beqlr
+ mtctr r5
+ addi r6,r3,-1
+9: stbu r4,1(r6)
+ bdnz 9b
+ blr
+EXPORT_SYMBOL(memset)
+
/*
* This version uses dcbz on the complete cache lines in the
* destination area to reduce memory traffic. This requires that
diff --git a/arch/powerpc/lib/copypage_power7.S b/arch/powerpc/lib/copypage_power7.S
index a84d333ecb09..ca5fc8fa7efc 100644
--- a/arch/powerpc/lib/copypage_power7.S
+++ b/arch/powerpc/lib/copypage_power7.S
@@ -45,13 +45,13 @@ _GLOBAL(copypage_power7)
.machine push
.machine "power4"
/* setup read stream 0 */
- dcbt r0,r4,0b01000 /* addr from */
- dcbt r0,r7,0b01010 /* length and depth from */
+ dcbt 0,r4,0b01000 /* addr from */
+ dcbt 0,r7,0b01010 /* length and depth from */
/* setup write stream 1 */
- dcbtst r0,r9,0b01000 /* addr to */
- dcbtst r0,r10,0b01010 /* length and depth to */
+ dcbtst 0,r9,0b01000 /* addr to */
+ dcbtst 0,r10,0b01010 /* length and depth to */
eieio
- dcbt r0,r8,0b01010 /* all streams GO */
+ dcbt 0,r8,0b01010 /* all streams GO */
.machine pop
#ifdef CONFIG_ALTIVEC
@@ -83,7 +83,7 @@ _GLOBAL(copypage_power7)
li r12,112
.align 5
-1: lvx v7,r0,r4
+1: lvx v7,0,r4
lvx v6,r4,r6
lvx v5,r4,r7
lvx v4,r4,r8
@@ -92,7 +92,7 @@ _GLOBAL(copypage_power7)
lvx v1,r4,r11
lvx v0,r4,r12
addi r4,r4,128
- stvx v7,r0,r3
+ stvx v7,0,r3
stvx v6,r3,r6
stvx v5,r3,r7
stvx v4,r3,r8
diff --git a/arch/powerpc/lib/copyuser_power7.S b/arch/powerpc/lib/copyuser_power7.S
index a24b4039352c..d416a4a66578 100644
--- a/arch/powerpc/lib/copyuser_power7.S
+++ b/arch/powerpc/lib/copyuser_power7.S
@@ -82,14 +82,14 @@
_GLOBAL(__copy_tofrom_user_power7)
#ifdef CONFIG_ALTIVEC
cmpldi r5,16
- cmpldi cr1,r5,4096
+ cmpldi cr1,r5,3328
std r3,-STACKFRAMESIZE+STK_REG(R31)(r1)
std r4,-STACKFRAMESIZE+STK_REG(R30)(r1)
std r5,-STACKFRAMESIZE+STK_REG(R29)(r1)
blt .Lshort_copy
- bgt cr1,.Lvmx_copy
+ bge cr1,.Lvmx_copy
#else
cmpldi r5,16
@@ -315,13 +315,13 @@ err1; stb r0,0(r3)
.machine push
.machine "power4"
/* setup read stream 0 */
- dcbt r0,r6,0b01000 /* addr from */
- dcbt r0,r7,0b01010 /* length and depth from */
+ dcbt 0,r6,0b01000 /* addr from */
+ dcbt 0,r7,0b01010 /* length and depth from */
/* setup write stream 1 */
- dcbtst r0,r9,0b01000 /* addr to */
- dcbtst r0,r10,0b01010 /* length and depth to */
+ dcbtst 0,r9,0b01000 /* addr to */
+ dcbtst 0,r10,0b01010 /* length and depth to */
eieio
- dcbt r0,r8,0b01010 /* all streams GO */
+ dcbt 0,r8,0b01010 /* all streams GO */
.machine pop
beq cr1,.Lunwind_stack_nonvmx_copy
@@ -376,26 +376,26 @@ err3; std r0,0(r3)
li r11,48
bf cr7*4+3,5f
-err3; lvx v1,r0,r4
+err3; lvx v1,0,r4
addi r4,r4,16
-err3; stvx v1,r0,r3
+err3; stvx v1,0,r3
addi r3,r3,16
5: bf cr7*4+2,6f
-err3; lvx v1,r0,r4
+err3; lvx v1,0,r4
err3; lvx v0,r4,r9
addi r4,r4,32
-err3; stvx v1,r0,r3
+err3; stvx v1,0,r3
err3; stvx v0,r3,r9
addi r3,r3,32
6: bf cr7*4+1,7f
-err3; lvx v3,r0,r4
+err3; lvx v3,0,r4
err3; lvx v2,r4,r9
err3; lvx v1,r4,r10
err3; lvx v0,r4,r11
addi r4,r4,64
-err3; stvx v3,r0,r3
+err3; stvx v3,0,r3
err3; stvx v2,r3,r9
err3; stvx v1,r3,r10
err3; stvx v0,r3,r11
@@ -421,7 +421,7 @@ err3; stvx v0,r3,r11
*/
.align 5
8:
-err4; lvx v7,r0,r4
+err4; lvx v7,0,r4
err4; lvx v6,r4,r9
err4; lvx v5,r4,r10
err4; lvx v4,r4,r11
@@ -430,7 +430,7 @@ err4; lvx v2,r4,r14
err4; lvx v1,r4,r15
err4; lvx v0,r4,r16
addi r4,r4,128
-err4; stvx v7,r0,r3
+err4; stvx v7,0,r3
err4; stvx v6,r3,r9
err4; stvx v5,r3,r10
err4; stvx v4,r3,r11
@@ -451,29 +451,29 @@ err4; stvx v0,r3,r16
mtocrf 0x01,r6
bf cr7*4+1,9f
-err3; lvx v3,r0,r4
+err3; lvx v3,0,r4
err3; lvx v2,r4,r9
err3; lvx v1,r4,r10
err3; lvx v0,r4,r11
addi r4,r4,64
-err3; stvx v3,r0,r3
+err3; stvx v3,0,r3
err3; stvx v2,r3,r9
err3; stvx v1,r3,r10
err3; stvx v0,r3,r11
addi r3,r3,64
9: bf cr7*4+2,10f
-err3; lvx v1,r0,r4
+err3; lvx v1,0,r4
err3; lvx v0,r4,r9
addi r4,r4,32
-err3; stvx v1,r0,r3
+err3; stvx v1,0,r3
err3; stvx v0,r3,r9
addi r3,r3,32
10: bf cr7*4+3,11f
-err3; lvx v1,r0,r4
+err3; lvx v1,0,r4
addi r4,r4,16
-err3; stvx v1,r0,r3
+err3; stvx v1,0,r3
addi r3,r3,16
/* Up to 15B to go */
@@ -553,25 +553,25 @@ err3; lvx v0,0,r4
addi r4,r4,16
bf cr7*4+3,5f
-err3; lvx v1,r0,r4
+err3; lvx v1,0,r4
VPERM(v8,v0,v1,v16)
addi r4,r4,16
-err3; stvx v8,r0,r3
+err3; stvx v8,0,r3
addi r3,r3,16
vor v0,v1,v1
5: bf cr7*4+2,6f
-err3; lvx v1,r0,r4
+err3; lvx v1,0,r4
VPERM(v8,v0,v1,v16)
err3; lvx v0,r4,r9
VPERM(v9,v1,v0,v16)
addi r4,r4,32
-err3; stvx v8,r0,r3
+err3; stvx v8,0,r3
err3; stvx v9,r3,r9
addi r3,r3,32
6: bf cr7*4+1,7f
-err3; lvx v3,r0,r4
+err3; lvx v3,0,r4
VPERM(v8,v0,v3,v16)
err3; lvx v2,r4,r9
VPERM(v9,v3,v2,v16)
@@ -580,7 +580,7 @@ err3; lvx v1,r4,r10
err3; lvx v0,r4,r11
VPERM(v11,v1,v0,v16)
addi r4,r4,64
-err3; stvx v8,r0,r3
+err3; stvx v8,0,r3
err3; stvx v9,r3,r9
err3; stvx v10,r3,r10
err3; stvx v11,r3,r11
@@ -606,7 +606,7 @@ err3; stvx v11,r3,r11
*/
.align 5
8:
-err4; lvx v7,r0,r4
+err4; lvx v7,0,r4
VPERM(v8,v0,v7,v16)
err4; lvx v6,r4,r9
VPERM(v9,v7,v6,v16)
@@ -623,7 +623,7 @@ err4; lvx v1,r4,r15
err4; lvx v0,r4,r16
VPERM(v15,v1,v0,v16)
addi r4,r4,128
-err4; stvx v8,r0,r3
+err4; stvx v8,0,r3
err4; stvx v9,r3,r9
err4; stvx v10,r3,r10
err4; stvx v11,r3,r11
@@ -644,7 +644,7 @@ err4; stvx v15,r3,r16
mtocrf 0x01,r6
bf cr7*4+1,9f
-err3; lvx v3,r0,r4
+err3; lvx v3,0,r4
VPERM(v8,v0,v3,v16)
err3; lvx v2,r4,r9
VPERM(v9,v3,v2,v16)
@@ -653,27 +653,27 @@ err3; lvx v1,r4,r10
err3; lvx v0,r4,r11
VPERM(v11,v1,v0,v16)
addi r4,r4,64
-err3; stvx v8,r0,r3
+err3; stvx v8,0,r3
err3; stvx v9,r3,r9
err3; stvx v10,r3,r10
err3; stvx v11,r3,r11
addi r3,r3,64
9: bf cr7*4+2,10f
-err3; lvx v1,r0,r4
+err3; lvx v1,0,r4
VPERM(v8,v0,v1,v16)
err3; lvx v0,r4,r9
VPERM(v9,v1,v0,v16)
addi r4,r4,32
-err3; stvx v8,r0,r3
+err3; stvx v8,0,r3
err3; stvx v9,r3,r9
addi r3,r3,32
10: bf cr7*4+3,11f
-err3; lvx v1,r0,r4
+err3; lvx v1,0,r4
VPERM(v8,v0,v1,v16)
addi r4,r4,16
-err3; stvx v8,r0,r3
+err3; stvx v8,0,r3
addi r3,r3,16
/* Up to 15B to go */
diff --git a/arch/powerpc/lib/crtsavres.S b/arch/powerpc/lib/crtsavres.S
index 18af0b3d3eb2..7e5e1c28e56a 100644
--- a/arch/powerpc/lib/crtsavres.S
+++ b/arch/powerpc/lib/crtsavres.S
@@ -44,10 +44,10 @@
#ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
-#ifndef CONFIG_PPC64
-
.section ".text"
+#ifndef CONFIG_PPC64
+
/* Routines for saving integer registers, called by the compiler. */
/* Called with r11 pointing to the stack header word of the caller of the */
/* function, just beyond the end of the integer save area. */
@@ -314,8 +314,6 @@ _GLOBAL(_restvr_31)
#else /* CONFIG_PPC64 */
- .section ".text.save.restore","ax",@progbits
-
.globl _savegpr0_14
_savegpr0_14:
std r14,-144(r1)
diff --git a/arch/powerpc/lib/feature-fixups.c b/arch/powerpc/lib/feature-fixups.c
index f3917705c686..41cf5ae273cf 100644
--- a/arch/powerpc/lib/feature-fixups.c
+++ b/arch/powerpc/lib/feature-fixups.c
@@ -233,192 +233,192 @@ static long calc_offset(struct fixup_entry *entry, unsigned int *p)
static void test_basic_patching(void)
{
- extern unsigned int ftr_fixup_test1;
- extern unsigned int end_ftr_fixup_test1;
- extern unsigned int ftr_fixup_test1_orig;
- extern unsigned int ftr_fixup_test1_expected;
- int size = &end_ftr_fixup_test1 - &ftr_fixup_test1;
+ extern unsigned int ftr_fixup_test1[];
+ extern unsigned int end_ftr_fixup_test1[];
+ extern unsigned int ftr_fixup_test1_orig[];
+ extern unsigned int ftr_fixup_test1_expected[];
+ int size = end_ftr_fixup_test1 - ftr_fixup_test1;
fixup.value = fixup.mask = 8;
- fixup.start_off = calc_offset(&fixup, &ftr_fixup_test1 + 1);
- fixup.end_off = calc_offset(&fixup, &ftr_fixup_test1 + 2);
+ fixup.start_off = calc_offset(&fixup, ftr_fixup_test1 + 1);
+ fixup.end_off = calc_offset(&fixup, ftr_fixup_test1 + 2);
fixup.alt_start_off = fixup.alt_end_off = 0;
/* Sanity check */
- check(memcmp(&ftr_fixup_test1, &ftr_fixup_test1_orig, size) == 0);
+ check(memcmp(ftr_fixup_test1, ftr_fixup_test1_orig, size) == 0);
/* Check we don't patch if the value matches */
patch_feature_section(8, &fixup);
- check(memcmp(&ftr_fixup_test1, &ftr_fixup_test1_orig, size) == 0);
+ check(memcmp(ftr_fixup_test1, ftr_fixup_test1_orig, size) == 0);
/* Check we do patch if the value doesn't match */
patch_feature_section(0, &fixup);
- check(memcmp(&ftr_fixup_test1, &ftr_fixup_test1_expected, size) == 0);
+ check(memcmp(ftr_fixup_test1, ftr_fixup_test1_expected, size) == 0);
/* Check we do patch if the mask doesn't match */
- memcpy(&ftr_fixup_test1, &ftr_fixup_test1_orig, size);
- check(memcmp(&ftr_fixup_test1, &ftr_fixup_test1_orig, size) == 0);
+ memcpy(ftr_fixup_test1, ftr_fixup_test1_orig, size);
+ check(memcmp(ftr_fixup_test1, ftr_fixup_test1_orig, size) == 0);
patch_feature_section(~8, &fixup);
- check(memcmp(&ftr_fixup_test1, &ftr_fixup_test1_expected, size) == 0);
+ check(memcmp(ftr_fixup_test1, ftr_fixup_test1_expected, size) == 0);
}
static void test_alternative_patching(void)
{
- extern unsigned int ftr_fixup_test2;
- extern unsigned int end_ftr_fixup_test2;
- extern unsigned int ftr_fixup_test2_orig;
- extern unsigned int ftr_fixup_test2_alt;
- extern unsigned int ftr_fixup_test2_expected;
- int size = &end_ftr_fixup_test2 - &ftr_fixup_test2;
+ extern unsigned int ftr_fixup_test2[];
+ extern unsigned int end_ftr_fixup_test2[];
+ extern unsigned int ftr_fixup_test2_orig[];
+ extern unsigned int ftr_fixup_test2_alt[];
+ extern unsigned int ftr_fixup_test2_expected[];
+ int size = end_ftr_fixup_test2 - ftr_fixup_test2;
fixup.value = fixup.mask = 0xF;
- fixup.start_off = calc_offset(&fixup, &ftr_fixup_test2 + 1);
- fixup.end_off = calc_offset(&fixup, &ftr_fixup_test2 + 2);
- fixup.alt_start_off = calc_offset(&fixup, &ftr_fixup_test2_alt);
- fixup.alt_end_off = calc_offset(&fixup, &ftr_fixup_test2_alt + 1);
+ fixup.start_off = calc_offset(&fixup, ftr_fixup_test2 + 1);
+ fixup.end_off = calc_offset(&fixup, ftr_fixup_test2 + 2);
+ fixup.alt_start_off = calc_offset(&fixup, ftr_fixup_test2_alt);
+ fixup.alt_end_off = calc_offset(&fixup, ftr_fixup_test2_alt + 1);
/* Sanity check */
- check(memcmp(&ftr_fixup_test2, &ftr_fixup_test2_orig, size) == 0);
+ check(memcmp(ftr_fixup_test2, ftr_fixup_test2_orig, size) == 0);
/* Check we don't patch if the value matches */
patch_feature_section(0xF, &fixup);
- check(memcmp(&ftr_fixup_test2, &ftr_fixup_test2_orig, size) == 0);
+ check(memcmp(ftr_fixup_test2, ftr_fixup_test2_orig, size) == 0);
/* Check we do patch if the value doesn't match */
patch_feature_section(0, &fixup);
- check(memcmp(&ftr_fixup_test2, &ftr_fixup_test2_expected, size) == 0);
+ check(memcmp(ftr_fixup_test2, ftr_fixup_test2_expected, size) == 0);
/* Check we do patch if the mask doesn't match */
- memcpy(&ftr_fixup_test2, &ftr_fixup_test2_orig, size);
- check(memcmp(&ftr_fixup_test2, &ftr_fixup_test2_orig, size) == 0);
+ memcpy(ftr_fixup_test2, ftr_fixup_test2_orig, size);
+ check(memcmp(ftr_fixup_test2, ftr_fixup_test2_orig, size) == 0);
patch_feature_section(~0xF, &fixup);
- check(memcmp(&ftr_fixup_test2, &ftr_fixup_test2_expected, size) == 0);
+ check(memcmp(ftr_fixup_test2, ftr_fixup_test2_expected, size) == 0);
}
static void test_alternative_case_too_big(void)
{
- extern unsigned int ftr_fixup_test3;
- extern unsigned int end_ftr_fixup_test3;
- extern unsigned int ftr_fixup_test3_orig;
- extern unsigned int ftr_fixup_test3_alt;
- int size = &end_ftr_fixup_test3 - &ftr_fixup_test3;
+ extern unsigned int ftr_fixup_test3[];
+ extern unsigned int end_ftr_fixup_test3[];
+ extern unsigned int ftr_fixup_test3_orig[];
+ extern unsigned int ftr_fixup_test3_alt[];
+ int size = end_ftr_fixup_test3 - ftr_fixup_test3;
fixup.value = fixup.mask = 0xC;
- fixup.start_off = calc_offset(&fixup, &ftr_fixup_test3 + 1);
- fixup.end_off = calc_offset(&fixup, &ftr_fixup_test3 + 2);
- fixup.alt_start_off = calc_offset(&fixup, &ftr_fixup_test3_alt);
- fixup.alt_end_off = calc_offset(&fixup, &ftr_fixup_test3_alt + 2);
+ fixup.start_off = calc_offset(&fixup, ftr_fixup_test3 + 1);
+ fixup.end_off = calc_offset(&fixup, ftr_fixup_test3 + 2);
+ fixup.alt_start_off = calc_offset(&fixup, ftr_fixup_test3_alt);
+ fixup.alt_end_off = calc_offset(&fixup, ftr_fixup_test3_alt + 2);
/* Sanity check */
- check(memcmp(&ftr_fixup_test3, &ftr_fixup_test3_orig, size) == 0);
+ check(memcmp(ftr_fixup_test3, ftr_fixup_test3_orig, size) == 0);
/* Expect nothing to be patched, and the error returned to us */
check(patch_feature_section(0xF, &fixup) == 1);
- check(memcmp(&ftr_fixup_test3, &ftr_fixup_test3_orig, size) == 0);
+ check(memcmp(ftr_fixup_test3, ftr_fixup_test3_orig, size) == 0);
check(patch_feature_section(0, &fixup) == 1);
- check(memcmp(&ftr_fixup_test3, &ftr_fixup_test3_orig, size) == 0);
+ check(memcmp(ftr_fixup_test3, ftr_fixup_test3_orig, size) == 0);
check(patch_feature_section(~0xF, &fixup) == 1);
- check(memcmp(&ftr_fixup_test3, &ftr_fixup_test3_orig, size) == 0);
+ check(memcmp(ftr_fixup_test3, ftr_fixup_test3_orig, size) == 0);
}
static void test_alternative_case_too_small(void)
{
- extern unsigned int ftr_fixup_test4;
- extern unsigned int end_ftr_fixup_test4;
- extern unsigned int ftr_fixup_test4_orig;
- extern unsigned int ftr_fixup_test4_alt;
- extern unsigned int ftr_fixup_test4_expected;
- int size = &end_ftr_fixup_test4 - &ftr_fixup_test4;
+ extern unsigned int ftr_fixup_test4[];
+ extern unsigned int end_ftr_fixup_test4[];
+ extern unsigned int ftr_fixup_test4_orig[];
+ extern unsigned int ftr_fixup_test4_alt[];
+ extern unsigned int ftr_fixup_test4_expected[];
+ int size = end_ftr_fixup_test4 - ftr_fixup_test4;
unsigned long flag;
/* Check a high-bit flag */
flag = 1UL << ((sizeof(unsigned long) - 1) * 8);
fixup.value = fixup.mask = flag;
- fixup.start_off = calc_offset(&fixup, &ftr_fixup_test4 + 1);
- fixup.end_off = calc_offset(&fixup, &ftr_fixup_test4 + 5);
- fixup.alt_start_off = calc_offset(&fixup, &ftr_fixup_test4_alt);
- fixup.alt_end_off = calc_offset(&fixup, &ftr_fixup_test4_alt + 2);
+ fixup.start_off = calc_offset(&fixup, ftr_fixup_test4 + 1);
+ fixup.end_off = calc_offset(&fixup, ftr_fixup_test4 + 5);
+ fixup.alt_start_off = calc_offset(&fixup, ftr_fixup_test4_alt);
+ fixup.alt_end_off = calc_offset(&fixup, ftr_fixup_test4_alt + 2);
/* Sanity check */
- check(memcmp(&ftr_fixup_test4, &ftr_fixup_test4_orig, size) == 0);
+ check(memcmp(ftr_fixup_test4, ftr_fixup_test4_orig, size) == 0);
/* Check we don't patch if the value matches */
patch_feature_section(flag, &fixup);
- check(memcmp(&ftr_fixup_test4, &ftr_fixup_test4_orig, size) == 0);
+ check(memcmp(ftr_fixup_test4, ftr_fixup_test4_orig, size) == 0);
/* Check we do patch if the value doesn't match */
patch_feature_section(0, &fixup);
- check(memcmp(&ftr_fixup_test4, &ftr_fixup_test4_expected, size) == 0);
+ check(memcmp(ftr_fixup_test4, ftr_fixup_test4_expected, size) == 0);
/* Check we do patch if the mask doesn't match */
- memcpy(&ftr_fixup_test4, &ftr_fixup_test4_orig, size);
- check(memcmp(&ftr_fixup_test4, &ftr_fixup_test4_orig, size) == 0);
+ memcpy(ftr_fixup_test4, ftr_fixup_test4_orig, size);
+ check(memcmp(ftr_fixup_test4, ftr_fixup_test4_orig, size) == 0);
patch_feature_section(~flag, &fixup);
- check(memcmp(&ftr_fixup_test4, &ftr_fixup_test4_expected, size) == 0);
+ check(memcmp(ftr_fixup_test4, ftr_fixup_test4_expected, size) == 0);
}
static void test_alternative_case_with_branch(void)
{
- extern unsigned int ftr_fixup_test5;
- extern unsigned int end_ftr_fixup_test5;
- extern unsigned int ftr_fixup_test5_expected;
- int size = &end_ftr_fixup_test5 - &ftr_fixup_test5;
+ extern unsigned int ftr_fixup_test5[];
+ extern unsigned int end_ftr_fixup_test5[];
+ extern unsigned int ftr_fixup_test5_expected[];
+ int size = end_ftr_fixup_test5 - ftr_fixup_test5;
- check(memcmp(&ftr_fixup_test5, &ftr_fixup_test5_expected, size) == 0);
+ check(memcmp(ftr_fixup_test5, ftr_fixup_test5_expected, size) == 0);
}
static void test_alternative_case_with_external_branch(void)
{
- extern unsigned int ftr_fixup_test6;
- extern unsigned int end_ftr_fixup_test6;
- extern unsigned int ftr_fixup_test6_expected;
- int size = &end_ftr_fixup_test6 - &ftr_fixup_test6;
+ extern unsigned int ftr_fixup_test6[];
+ extern unsigned int end_ftr_fixup_test6[];
+ extern unsigned int ftr_fixup_test6_expected[];
+ int size = end_ftr_fixup_test6 - ftr_fixup_test6;
- check(memcmp(&ftr_fixup_test6, &ftr_fixup_test6_expected, size) == 0);
+ check(memcmp(ftr_fixup_test6, ftr_fixup_test6_expected, size) == 0);
}
static void test_cpu_macros(void)
{
- extern u8 ftr_fixup_test_FTR_macros;
- extern u8 ftr_fixup_test_FTR_macros_expected;
- unsigned long size = &ftr_fixup_test_FTR_macros_expected -
- &ftr_fixup_test_FTR_macros;
+ extern u8 ftr_fixup_test_FTR_macros[];
+ extern u8 ftr_fixup_test_FTR_macros_expected[];
+ unsigned long size = ftr_fixup_test_FTR_macros_expected -
+ ftr_fixup_test_FTR_macros;
/* The fixups have already been done for us during boot */
- check(memcmp(&ftr_fixup_test_FTR_macros,
- &ftr_fixup_test_FTR_macros_expected, size) == 0);
+ check(memcmp(ftr_fixup_test_FTR_macros,
+ ftr_fixup_test_FTR_macros_expected, size) == 0);
}
static void test_fw_macros(void)
{
#ifdef CONFIG_PPC64
- extern u8 ftr_fixup_test_FW_FTR_macros;
- extern u8 ftr_fixup_test_FW_FTR_macros_expected;
- unsigned long size = &ftr_fixup_test_FW_FTR_macros_expected -
- &ftr_fixup_test_FW_FTR_macros;
+ extern u8 ftr_fixup_test_FW_FTR_macros[];
+ extern u8 ftr_fixup_test_FW_FTR_macros_expected[];
+ unsigned long size = ftr_fixup_test_FW_FTR_macros_expected -
+ ftr_fixup_test_FW_FTR_macros;
/* The fixups have already been done for us during boot */
- check(memcmp(&ftr_fixup_test_FW_FTR_macros,
- &ftr_fixup_test_FW_FTR_macros_expected, size) == 0);
+ check(memcmp(ftr_fixup_test_FW_FTR_macros,
+ ftr_fixup_test_FW_FTR_macros_expected, size) == 0);
#endif
}
static void test_lwsync_macros(void)
{
- extern u8 lwsync_fixup_test;
- extern u8 end_lwsync_fixup_test;
- extern u8 lwsync_fixup_test_expected_LWSYNC;
- extern u8 lwsync_fixup_test_expected_SYNC;
- unsigned long size = &end_lwsync_fixup_test -
- &lwsync_fixup_test;
+ extern u8 lwsync_fixup_test[];
+ extern u8 end_lwsync_fixup_test[];
+ extern u8 lwsync_fixup_test_expected_LWSYNC[];
+ extern u8 lwsync_fixup_test_expected_SYNC[];
+ unsigned long size = end_lwsync_fixup_test -
+ lwsync_fixup_test;
/* The fixups have already been done for us during boot */
if (cur_cpu_spec->cpu_features & CPU_FTR_LWSYNC) {
- check(memcmp(&lwsync_fixup_test,
- &lwsync_fixup_test_expected_LWSYNC, size) == 0);
+ check(memcmp(lwsync_fixup_test,
+ lwsync_fixup_test_expected_LWSYNC, size) == 0);
} else {
- check(memcmp(&lwsync_fixup_test,
- &lwsync_fixup_test_expected_SYNC, size) == 0);
+ check(memcmp(lwsync_fixup_test,
+ lwsync_fixup_test_expected_SYNC, size) == 0);
}
}
diff --git a/arch/powerpc/lib/ldstfp.S b/arch/powerpc/lib/ldstfp.S
index a58777c1b2cb..ae15eba49c1f 100644
--- a/arch/powerpc/lib/ldstfp.S
+++ b/arch/powerpc/lib/ldstfp.S
@@ -21,27 +21,19 @@
#define STKFRM (PPC_MIN_STKFRM + 16)
- .macro inst32 op
-reg = 0
- .rept 32
-20: \op reg,0,r4
- b 3f
- EX_TABLE(20b,99f)
-reg = reg + 1
- .endr
- .endm
-
-/* Get the contents of frN into fr0; N is in r3. */
+/* Get the contents of frN into *p; N is in r3 and p is in r4. */
_GLOBAL(get_fpr)
mflr r0
+ mfmsr r6
+ ori r7, r6, MSR_FP
+ MTMSRD(r7)
+ isync
rlwinm r3,r3,3,0xf8
bcl 20,31,1f
- blr /* fr0 is already in fr0 */
- nop
-reg = 1
- .rept 31
- fmr fr0,reg
- blr
+reg = 0
+ .rept 32
+ stfd reg, 0(r4)
+ b 2f
reg = reg + 1
.endr
1: mflr r5
@@ -49,18 +41,23 @@ reg = reg + 1
mtctr r5
mtlr r0
bctr
+2: MTMSRD(r6)
+ isync
+ blr
-/* Put the contents of fr0 into frN; N is in r3. */
+/* Put the contents of *p into frN; N is in r3 and p is in r4. */
_GLOBAL(put_fpr)
mflr r0
+ mfmsr r6
+ ori r7, r6, MSR_FP
+ MTMSRD(r7)
+ isync
rlwinm r3,r3,3,0xf8
bcl 20,31,1f
- blr /* fr0 is already in fr0 */
- nop
-reg = 1
- .rept 31
- fmr reg,fr0
- blr
+reg = 0
+ .rept 32
+ lfd reg, 0(r4)
+ b 2f
reg = reg + 1
.endr
1: mflr r5
@@ -68,127 +65,24 @@ reg = reg + 1
mtctr r5
mtlr r0
bctr
-
-/* Load FP reg N from float at *p. N is in r3, p in r4. */
-_GLOBAL(do_lfs)
- PPC_STLU r1,-STKFRM(r1)
- mflr r0
- PPC_STL r0,STKFRM+PPC_LR_STKOFF(r1)
- mfmsr r6
- ori r7,r6,MSR_FP
- cmpwi cr7,r3,0
- MTMSRD(r7)
- isync
- beq cr7,1f
- stfd fr0,STKFRM-16(r1)
-1: li r9,-EFAULT
-2: lfs fr0,0(r4)
- li r9,0
-3: bl put_fpr
- beq cr7,4f
- lfd fr0,STKFRM-16(r1)
-4: PPC_LL r0,STKFRM+PPC_LR_STKOFF(r1)
- mtlr r0
- MTMSRD(r6)
- isync
- mr r3,r9
- addi r1,r1,STKFRM
- blr
- EX_TABLE(2b,3b)
-
-/* Load FP reg N from double at *p. N is in r3, p in r4. */
-_GLOBAL(do_lfd)
- PPC_STLU r1,-STKFRM(r1)
- mflr r0
- PPC_STL r0,STKFRM+PPC_LR_STKOFF(r1)
- mfmsr r6
- ori r7,r6,MSR_FP
- cmpwi cr7,r3,0
- MTMSRD(r7)
- isync
- beq cr7,1f
- stfd fr0,STKFRM-16(r1)
-1: li r9,-EFAULT
-2: lfd fr0,0(r4)
- li r9,0
-3: beq cr7,4f
- bl put_fpr
- lfd fr0,STKFRM-16(r1)
-4: PPC_LL r0,STKFRM+PPC_LR_STKOFF(r1)
- mtlr r0
- MTMSRD(r6)
+2: MTMSRD(r6)
isync
- mr r3,r9
- addi r1,r1,STKFRM
blr
- EX_TABLE(2b,3b)
-/* Store FP reg N to float at *p. N is in r3, p in r4. */
-_GLOBAL(do_stfs)
- PPC_STLU r1,-STKFRM(r1)
- mflr r0
- PPC_STL r0,STKFRM+PPC_LR_STKOFF(r1)
- mfmsr r6
- ori r7,r6,MSR_FP
- cmpwi cr7,r3,0
- MTMSRD(r7)
- isync
- beq cr7,1f
- stfd fr0,STKFRM-16(r1)
- bl get_fpr
-1: li r9,-EFAULT
-2: stfs fr0,0(r4)
- li r9,0
-3: beq cr7,4f
- lfd fr0,STKFRM-16(r1)
-4: PPC_LL r0,STKFRM+PPC_LR_STKOFF(r1)
- mtlr r0
- MTMSRD(r6)
- isync
- mr r3,r9
- addi r1,r1,STKFRM
- blr
- EX_TABLE(2b,3b)
-
-/* Store FP reg N to double at *p. N is in r3, p in r4. */
-_GLOBAL(do_stfd)
- PPC_STLU r1,-STKFRM(r1)
+#ifdef CONFIG_ALTIVEC
+/* Get the contents of vrN into *p; N is in r3 and p is in r4. */
+_GLOBAL(get_vr)
mflr r0
- PPC_STL r0,STKFRM+PPC_LR_STKOFF(r1)
mfmsr r6
- ori r7,r6,MSR_FP
- cmpwi cr7,r3,0
+ oris r7, r6, MSR_VEC@h
MTMSRD(r7)
isync
- beq cr7,1f
- stfd fr0,STKFRM-16(r1)
- bl get_fpr
-1: li r9,-EFAULT
-2: stfd fr0,0(r4)
- li r9,0
-3: beq cr7,4f
- lfd fr0,STKFRM-16(r1)
-4: PPC_LL r0,STKFRM+PPC_LR_STKOFF(r1)
- mtlr r0
- MTMSRD(r6)
- isync
- mr r3,r9
- addi r1,r1,STKFRM
- blr
- EX_TABLE(2b,3b)
-
-#ifdef CONFIG_ALTIVEC
-/* Get the contents of vrN into v0; N is in r3. */
-_GLOBAL(get_vr)
- mflr r0
rlwinm r3,r3,3,0xf8
bcl 20,31,1f
- blr /* v0 is already in v0 */
- nop
-reg = 1
- .rept 31
- vor v0,reg,reg /* assembler doesn't know vmr? */
- blr
+reg = 0
+ .rept 32
+ stvx reg, 0, r4
+ b 2f
reg = reg + 1
.endr
1: mflr r5
@@ -196,18 +90,23 @@ reg = reg + 1
mtctr r5
mtlr r0
bctr
+2: MTMSRD(r6)
+ isync
+ blr
-/* Put the contents of v0 into vrN; N is in r3. */
+/* Put the contents of *p into vrN; N is in r3 and p is in r4. */
_GLOBAL(put_vr)
mflr r0
+ mfmsr r6
+ oris r7, r6, MSR_VEC@h
+ MTMSRD(r7)
+ isync
rlwinm r3,r3,3,0xf8
bcl 20,31,1f
- blr /* v0 is already in v0 */
- nop
-reg = 1
- .rept 31
- vor reg,v0,v0
- blr
+reg = 0
+ .rept 32
+ lvx reg, 0, r4
+ b 2f
reg = reg + 1
.endr
1: mflr r5
@@ -215,62 +114,9 @@ reg = reg + 1
mtctr r5
mtlr r0
bctr
-
-/* Load vector reg N from *p. N is in r3, p in r4. */
-_GLOBAL(do_lvx)
- PPC_STLU r1,-STKFRM(r1)
- mflr r0
- PPC_STL r0,STKFRM+PPC_LR_STKOFF(r1)
- mfmsr r6
- oris r7,r6,MSR_VEC@h
- cmpwi cr7,r3,0
- li r8,STKFRM-16
- MTMSRD(r7)
- isync
- beq cr7,1f
- stvx v0,r1,r8
-1: li r9,-EFAULT
-2: lvx v0,0,r4
- li r9,0
-3: beq cr7,4f
- bl put_vr
- lvx v0,r1,r8
-4: PPC_LL r0,STKFRM+PPC_LR_STKOFF(r1)
- mtlr r0
- MTMSRD(r6)
+2: MTMSRD(r6)
isync
- mr r3,r9
- addi r1,r1,STKFRM
- blr
- EX_TABLE(2b,3b)
-
-/* Store vector reg N to *p. N is in r3, p in r4. */
-_GLOBAL(do_stvx)
- PPC_STLU r1,-STKFRM(r1)
- mflr r0
- PPC_STL r0,STKFRM+PPC_LR_STKOFF(r1)
- mfmsr r6
- oris r7,r6,MSR_VEC@h
- cmpwi cr7,r3,0
- li r8,STKFRM-16
- MTMSRD(r7)
- isync
- beq cr7,1f
- stvx v0,r1,r8
- bl get_vr
-1: li r9,-EFAULT
-2: stvx v0,0,r4
- li r9,0
-3: beq cr7,4f
- lvx v0,r1,r8
-4: PPC_LL r0,STKFRM+PPC_LR_STKOFF(r1)
- mtlr r0
- MTMSRD(r6)
- isync
- mr r3,r9
- addi r1,r1,STKFRM
blr
- EX_TABLE(2b,3b)
#endif /* CONFIG_ALTIVEC */
#ifdef CONFIG_VSX
@@ -313,7 +159,7 @@ reg = reg + 1
bctr
/* Load VSX reg N from vector doubleword *p. N is in r3, p in r4. */
-_GLOBAL(do_lxvd2x)
+_GLOBAL(load_vsrn)
PPC_STLU r1,-STKFRM(r1)
mflr r0
PPC_STL r0,STKFRM+PPC_LR_STKOFF(r1)
@@ -325,49 +171,74 @@ _GLOBAL(do_lxvd2x)
isync
beq cr7,1f
STXVD2X(0,R1,R8)
-1: li r9,-EFAULT
-2: LXVD2X(0,R0,R4)
- li r9,0
-3: beq cr7,4f
+1: LXVD2X(0,R0,R4)
+#ifdef __LITTLE_ENDIAN__
+ XXSWAPD(0,0)
+#endif
+ beq cr7,4f
bl put_vsr
LXVD2X(0,R1,R8)
4: PPC_LL r0,STKFRM+PPC_LR_STKOFF(r1)
mtlr r0
MTMSRD(r6)
isync
- mr r3,r9
addi r1,r1,STKFRM
blr
- EX_TABLE(2b,3b)
/* Store VSX reg N to vector doubleword *p. N is in r3, p in r4. */
-_GLOBAL(do_stxvd2x)
+_GLOBAL(store_vsrn)
PPC_STLU r1,-STKFRM(r1)
mflr r0
PPC_STL r0,STKFRM+PPC_LR_STKOFF(r1)
mfmsr r6
oris r7,r6,MSR_VSX@h
- cmpwi cr7,r3,0
li r8,STKFRM-16
MTMSRD(r7)
isync
- beq cr7,1f
STXVD2X(0,R1,R8)
bl get_vsr
-1: li r9,-EFAULT
-2: STXVD2X(0,R0,R4)
- li r9,0
-3: beq cr7,4f
+#ifdef __LITTLE_ENDIAN__
+ XXSWAPD(0,0)
+#endif
+ STXVD2X(0,R0,R4)
LXVD2X(0,R1,R8)
-4: PPC_LL r0,STKFRM+PPC_LR_STKOFF(r1)
+ PPC_LL r0,STKFRM+PPC_LR_STKOFF(r1)
mtlr r0
MTMSRD(r6)
isync
mr r3,r9
addi r1,r1,STKFRM
blr
- EX_TABLE(2b,3b)
-
#endif /* CONFIG_VSX */
+/* Convert single-precision to double, without disturbing FPRs. */
+/* conv_sp_to_dp(float *sp, double *dp) */
+_GLOBAL(conv_sp_to_dp)
+ mfmsr r6
+ ori r7, r6, MSR_FP
+ MTMSRD(r7)
+ isync
+ stfd fr0, -16(r1)
+ lfs fr0, 0(r3)
+ stfd fr0, 0(r4)
+ lfd fr0, -16(r1)
+ MTMSRD(r6)
+ isync
+ blr
+
+/* Convert single-precision to double, without disturbing FPRs. */
+/* conv_sp_to_dp(double *dp, float *sp) */
+_GLOBAL(conv_dp_to_sp)
+ mfmsr r6
+ ori r7, r6, MSR_FP
+ MTMSRD(r7)
+ isync
+ stfd fr0, -16(r1)
+ lfd fr0, 0(r3)
+ stfs fr0, 0(r4)
+ lfd fr0, -16(r1)
+ MTMSRD(r6)
+ isync
+ blr
+
#endif /* CONFIG_PPC_FPU */
diff --git a/arch/powerpc/lib/mem_64.S b/arch/powerpc/lib/mem_64.S
index 85fa9869aec5..ec531de99996 100644
--- a/arch/powerpc/lib/mem_64.S
+++ b/arch/powerpc/lib/mem_64.S
@@ -13,6 +13,23 @@
#include <asm/ppc_asm.h>
#include <asm/export.h>
+_GLOBAL(__memset16)
+ rlwimi r4,r4,16,0,15
+ /* fall through */
+
+_GLOBAL(__memset32)
+ rldimi r4,r4,32,0
+ /* fall through */
+
+_GLOBAL(__memset64)
+ neg r0,r3
+ andi. r0,r0,7
+ cmplw cr1,r5,r0
+ b .Lms
+EXPORT_SYMBOL(__memset16)
+EXPORT_SYMBOL(__memset32)
+EXPORT_SYMBOL(__memset64)
+
_GLOBAL(memset)
neg r0,r3
rlwimi r4,r4,8,16,23
@@ -20,7 +37,7 @@ _GLOBAL(memset)
rlwimi r4,r4,16,0,15
cmplw cr1,r5,r0 /* do we get that far? */
rldimi r4,r4,32,0
- PPC_MTOCRF(1,r0)
+.Lms: PPC_MTOCRF(1,r0)
mr r6,r3
blt cr1,8f
beq+ 3f /* if already 8-byte aligned */
diff --git a/arch/powerpc/lib/memcpy_power7.S b/arch/powerpc/lib/memcpy_power7.S
index 786234fd4e91..193909abd18b 100644
--- a/arch/powerpc/lib/memcpy_power7.S
+++ b/arch/powerpc/lib/memcpy_power7.S
@@ -261,12 +261,12 @@ _GLOBAL(memcpy_power7)
.machine push
.machine "power4"
- dcbt r0,r6,0b01000
- dcbt r0,r7,0b01010
- dcbtst r0,r9,0b01000
- dcbtst r0,r10,0b01010
+ dcbt 0,r6,0b01000
+ dcbt 0,r7,0b01010
+ dcbtst 0,r9,0b01000
+ dcbtst 0,r10,0b01010
eieio
- dcbt r0,r8,0b01010 /* GO */
+ dcbt 0,r8,0b01010 /* GO */
.machine pop
beq cr1,.Lunwind_stack_nonvmx_copy
@@ -321,26 +321,26 @@ _GLOBAL(memcpy_power7)
li r11,48
bf cr7*4+3,5f
- lvx v1,r0,r4
+ lvx v1,0,r4
addi r4,r4,16
- stvx v1,r0,r3
+ stvx v1,0,r3
addi r3,r3,16
5: bf cr7*4+2,6f
- lvx v1,r0,r4
+ lvx v1,0,r4
lvx v0,r4,r9
addi r4,r4,32
- stvx v1,r0,r3
+ stvx v1,0,r3
stvx v0,r3,r9
addi r3,r3,32
6: bf cr7*4+1,7f
- lvx v3,r0,r4
+ lvx v3,0,r4
lvx v2,r4,r9
lvx v1,r4,r10
lvx v0,r4,r11
addi r4,r4,64
- stvx v3,r0,r3
+ stvx v3,0,r3
stvx v2,r3,r9
stvx v1,r3,r10
stvx v0,r3,r11
@@ -366,7 +366,7 @@ _GLOBAL(memcpy_power7)
*/
.align 5
8:
- lvx v7,r0,r4
+ lvx v7,0,r4
lvx v6,r4,r9
lvx v5,r4,r10
lvx v4,r4,r11
@@ -375,7 +375,7 @@ _GLOBAL(memcpy_power7)
lvx v1,r4,r15
lvx v0,r4,r16
addi r4,r4,128
- stvx v7,r0,r3
+ stvx v7,0,r3
stvx v6,r3,r9
stvx v5,r3,r10
stvx v4,r3,r11
@@ -396,29 +396,29 @@ _GLOBAL(memcpy_power7)
mtocrf 0x01,r6
bf cr7*4+1,9f
- lvx v3,r0,r4
+ lvx v3,0,r4
lvx v2,r4,r9
lvx v1,r4,r10
lvx v0,r4,r11
addi r4,r4,64
- stvx v3,r0,r3
+ stvx v3,0,r3
stvx v2,r3,r9
stvx v1,r3,r10
stvx v0,r3,r11
addi r3,r3,64
9: bf cr7*4+2,10f
- lvx v1,r0,r4
+ lvx v1,0,r4
lvx v0,r4,r9
addi r4,r4,32
- stvx v1,r0,r3
+ stvx v1,0,r3
stvx v0,r3,r9
addi r3,r3,32
10: bf cr7*4+3,11f
- lvx v1,r0,r4
+ lvx v1,0,r4
addi r4,r4,16
- stvx v1,r0,r3
+ stvx v1,0,r3
addi r3,r3,16
/* Up to 15B to go */
@@ -499,25 +499,25 @@ _GLOBAL(memcpy_power7)
addi r4,r4,16
bf cr7*4+3,5f
- lvx v1,r0,r4
+ lvx v1,0,r4
VPERM(v8,v0,v1,v16)
addi r4,r4,16
- stvx v8,r0,r3
+ stvx v8,0,r3
addi r3,r3,16
vor v0,v1,v1
5: bf cr7*4+2,6f
- lvx v1,r0,r4
+ lvx v1,0,r4
VPERM(v8,v0,v1,v16)
lvx v0,r4,r9
VPERM(v9,v1,v0,v16)
addi r4,r4,32
- stvx v8,r0,r3
+ stvx v8,0,r3
stvx v9,r3,r9
addi r3,r3,32
6: bf cr7*4+1,7f
- lvx v3,r0,r4
+ lvx v3,0,r4
VPERM(v8,v0,v3,v16)
lvx v2,r4,r9
VPERM(v9,v3,v2,v16)
@@ -526,7 +526,7 @@ _GLOBAL(memcpy_power7)
lvx v0,r4,r11
VPERM(v11,v1,v0,v16)
addi r4,r4,64
- stvx v8,r0,r3
+ stvx v8,0,r3
stvx v9,r3,r9
stvx v10,r3,r10
stvx v11,r3,r11
@@ -552,7 +552,7 @@ _GLOBAL(memcpy_power7)
*/
.align 5
8:
- lvx v7,r0,r4
+ lvx v7,0,r4
VPERM(v8,v0,v7,v16)
lvx v6,r4,r9
VPERM(v9,v7,v6,v16)
@@ -569,7 +569,7 @@ _GLOBAL(memcpy_power7)
lvx v0,r4,r16
VPERM(v15,v1,v0,v16)
addi r4,r4,128
- stvx v8,r0,r3
+ stvx v8,0,r3
stvx v9,r3,r9
stvx v10,r3,r10
stvx v11,r3,r11
@@ -590,7 +590,7 @@ _GLOBAL(memcpy_power7)
mtocrf 0x01,r6
bf cr7*4+1,9f
- lvx v3,r0,r4
+ lvx v3,0,r4
VPERM(v8,v0,v3,v16)
lvx v2,r4,r9
VPERM(v9,v3,v2,v16)
@@ -599,27 +599,27 @@ _GLOBAL(memcpy_power7)
lvx v0,r4,r11
VPERM(v11,v1,v0,v16)
addi r4,r4,64
- stvx v8,r0,r3
+ stvx v8,0,r3
stvx v9,r3,r9
stvx v10,r3,r10
stvx v11,r3,r11
addi r3,r3,64
9: bf cr7*4+2,10f
- lvx v1,r0,r4
+ lvx v1,0,r4
VPERM(v8,v0,v1,v16)
lvx v0,r4,r9
VPERM(v9,v1,v0,v16)
addi r4,r4,32
- stvx v8,r0,r3
+ stvx v8,0,r3
stvx v9,r3,r9
addi r3,r3,32
10: bf cr7*4+3,11f
- lvx v1,r0,r4
+ lvx v1,0,r4
VPERM(v8,v0,v1,v16)
addi r4,r4,16
- stvx v8,r0,r3
+ stvx v8,0,r3
addi r3,r3,16
/* Up to 15B to go */
diff --git a/arch/powerpc/lib/quad.S b/arch/powerpc/lib/quad.S
new file mode 100644
index 000000000000..c4d12fae8724
--- /dev/null
+++ b/arch/powerpc/lib/quad.S
@@ -0,0 +1,62 @@
+/*
+ * Quadword loads and stores
+ * for use in instruction emulation.
+ *
+ * Copyright 2017 Paul Mackerras, IBM Corp. <paulus@au1.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <asm/processor.h>
+#include <asm/ppc_asm.h>
+#include <asm/ppc-opcode.h>
+#include <asm/reg.h>
+#include <asm/asm-offsets.h>
+#include <linux/errno.h>
+
+/* do_lq(unsigned long ea, unsigned long *regs) */
+_GLOBAL(do_lq)
+1: lq r6, 0(r3)
+ std r6, 0(r4)
+ std r7, 8(r4)
+ li r3, 0
+ blr
+2: li r3, -EFAULT
+ blr
+ EX_TABLE(1b, 2b)
+
+/* do_stq(unsigned long ea, unsigned long val0, unsigned long val1) */
+_GLOBAL(do_stq)
+1: stq r4, 0(r3)
+ li r3, 0
+ blr
+2: li r3, -EFAULT
+ blr
+ EX_TABLE(1b, 2b)
+
+/* do_lqarx(unsigned long ea, unsigned long *regs) */
+_GLOBAL(do_lqarx)
+1: PPC_LQARX(6, 0, 3, 0)
+ std r6, 0(r4)
+ std r7, 8(r4)
+ li r3, 0
+ blr
+2: li r3, -EFAULT
+ blr
+ EX_TABLE(1b, 2b)
+
+/* do_stqcx(unsigned long ea, unsigned long val0, unsigned long val1,
+ unsigned int *crp) */
+
+_GLOBAL(do_stqcx)
+1: PPC_STQCX(4, 0, 3)
+ mfcr r5
+ stw r5, 0(r6)
+ li r3, 0
+ blr
+2: li r3, -EFAULT
+ blr
+ EX_TABLE(1b, 2b)
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c
index 33117f8a0882..f208f560aecd 100644
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -36,14 +36,33 @@ extern char system_call_common[];
/*
* Functions in ldstfp.S
*/
-extern int do_lfs(int rn, unsigned long ea);
-extern int do_lfd(int rn, unsigned long ea);
-extern int do_stfs(int rn, unsigned long ea);
-extern int do_stfd(int rn, unsigned long ea);
-extern int do_lvx(int rn, unsigned long ea);
-extern int do_stvx(int rn, unsigned long ea);
-extern int do_lxvd2x(int rn, unsigned long ea);
-extern int do_stxvd2x(int rn, unsigned long ea);
+extern void get_fpr(int rn, double *p);
+extern void put_fpr(int rn, const double *p);
+extern void get_vr(int rn, __vector128 *p);
+extern void put_vr(int rn, __vector128 *p);
+extern void load_vsrn(int vsr, const void *p);
+extern void store_vsrn(int vsr, void *p);
+extern void conv_sp_to_dp(const float *sp, double *dp);
+extern void conv_dp_to_sp(const double *dp, float *sp);
+#endif
+
+#ifdef __powerpc64__
+/*
+ * Functions in quad.S
+ */
+extern int do_lq(unsigned long ea, unsigned long *regs);
+extern int do_stq(unsigned long ea, unsigned long val0, unsigned long val1);
+extern int do_lqarx(unsigned long ea, unsigned long *regs);
+extern int do_stqcx(unsigned long ea, unsigned long val0, unsigned long val1,
+ unsigned int *crp);
+#endif
+
+#ifdef __LITTLE_ENDIAN__
+#define IS_LE 1
+#define IS_BE 0
+#else
+#define IS_LE 0
+#define IS_BE 1
#endif
/*
@@ -62,15 +81,17 @@ static nokprobe_inline unsigned long truncate_if_32bit(unsigned long msr,
/*
* Determine whether a conditional branch instruction would branch.
*/
-static nokprobe_inline int branch_taken(unsigned int instr, struct pt_regs *regs)
+static nokprobe_inline int branch_taken(unsigned int instr,
+ const struct pt_regs *regs,
+ struct instruction_op *op)
{
unsigned int bo = (instr >> 21) & 0x1f;
unsigned int bi;
if ((bo & 4) == 0) {
/* decrement counter */
- --regs->ctr;
- if (((bo >> 1) & 1) ^ (regs->ctr == 0))
+ op->type |= DECCTR;
+ if (((bo >> 1) & 1) ^ (regs->ctr == 1))
return 0;
}
if ((bo & 0x10) == 0) {
@@ -82,17 +103,26 @@ static nokprobe_inline int branch_taken(unsigned int instr, struct pt_regs *regs
return 1;
}
-static nokprobe_inline long address_ok(struct pt_regs *regs, unsigned long ea, int nb)
+static nokprobe_inline long address_ok(struct pt_regs *regs,
+ unsigned long ea, int nb)
{
if (!user_mode(regs))
return 1;
- return __access_ok(ea, nb, USER_DS);
+ if (__access_ok(ea, nb, USER_DS))
+ return 1;
+ if (__access_ok(ea, 1, USER_DS))
+ /* Access overlaps the end of the user region */
+ regs->dar = USER_DS.seg;
+ else
+ regs->dar = ea;
+ return 0;
}
/*
* Calculate effective address for a D-form instruction
*/
-static nokprobe_inline unsigned long dform_ea(unsigned int instr, struct pt_regs *regs)
+static nokprobe_inline unsigned long dform_ea(unsigned int instr,
+ const struct pt_regs *regs)
{
int ra;
unsigned long ea;
@@ -102,14 +132,15 @@ static nokprobe_inline unsigned long dform_ea(unsigned int instr, struct pt_regs
if (ra)
ea += regs->gpr[ra];
- return truncate_if_32bit(regs->msr, ea);
+ return ea;
}
#ifdef __powerpc64__
/*
* Calculate effective address for a DS-form instruction
*/
-static nokprobe_inline unsigned long dsform_ea(unsigned int instr, struct pt_regs *regs)
+static nokprobe_inline unsigned long dsform_ea(unsigned int instr,
+ const struct pt_regs *regs)
{
int ra;
unsigned long ea;
@@ -119,7 +150,24 @@ static nokprobe_inline unsigned long dsform_ea(unsigned int instr, struct pt_reg
if (ra)
ea += regs->gpr[ra];
- return truncate_if_32bit(regs->msr, ea);
+ return ea;
+}
+
+/*
+ * Calculate effective address for a DQ-form instruction
+ */
+static nokprobe_inline unsigned long dqform_ea(unsigned int instr,
+ const struct pt_regs *regs)
+{
+ int ra;
+ unsigned long ea;
+
+ ra = (instr >> 16) & 0x1f;
+ ea = (signed short) (instr & ~0xf); /* sign-extend */
+ if (ra)
+ ea += regs->gpr[ra];
+
+ return ea;
}
#endif /* __powerpc64 */
@@ -127,7 +175,7 @@ static nokprobe_inline unsigned long dsform_ea(unsigned int instr, struct pt_reg
* Calculate effective address for an X-form instruction
*/
static nokprobe_inline unsigned long xform_ea(unsigned int instr,
- struct pt_regs *regs)
+ const struct pt_regs *regs)
{
int ra, rb;
unsigned long ea;
@@ -138,7 +186,7 @@ static nokprobe_inline unsigned long xform_ea(unsigned int instr,
if (ra)
ea += regs->gpr[ra];
- return truncate_if_32bit(regs->msr, ea);
+ return ea;
}
/*
@@ -151,7 +199,6 @@ static nokprobe_inline unsigned long max_align(unsigned long x)
return x & -x; /* isolates rightmost bit */
}
-
static nokprobe_inline unsigned long byterev_2(unsigned long x)
{
return ((x >> 8) & 0xff) | ((x & 0xff) << 8);
@@ -170,8 +217,36 @@ static nokprobe_inline unsigned long byterev_8(unsigned long x)
}
#endif
+static nokprobe_inline void do_byte_reverse(void *ptr, int nb)
+{
+ switch (nb) {
+ case 2:
+ *(u16 *)ptr = byterev_2(*(u16 *)ptr);
+ break;
+ case 4:
+ *(u32 *)ptr = byterev_4(*(u32 *)ptr);
+ break;
+#ifdef __powerpc64__
+ case 8:
+ *(unsigned long *)ptr = byterev_8(*(unsigned long *)ptr);
+ break;
+ case 16: {
+ unsigned long *up = (unsigned long *)ptr;
+ unsigned long tmp;
+ tmp = byterev_8(up[0]);
+ up[0] = byterev_8(up[1]);
+ up[1] = tmp;
+ break;
+ }
+#endif
+ default:
+ WARN_ON_ONCE(1);
+ }
+}
+
static nokprobe_inline int read_mem_aligned(unsigned long *dest,
- unsigned long ea, int nb)
+ unsigned long ea, int nb,
+ struct pt_regs *regs)
{
int err = 0;
unsigned long x = 0;
@@ -194,59 +269,77 @@ static nokprobe_inline int read_mem_aligned(unsigned long *dest,
}
if (!err)
*dest = x;
+ else
+ regs->dar = ea;
return err;
}
-static nokprobe_inline int read_mem_unaligned(unsigned long *dest,
- unsigned long ea, int nb, struct pt_regs *regs)
+/*
+ * Copy from userspace to a buffer, using the largest possible
+ * aligned accesses, up to sizeof(long).
+ */
+static int nokprobe_inline copy_mem_in(u8 *dest, unsigned long ea, int nb,
+ struct pt_regs *regs)
{
- int err;
- unsigned long x, b, c;
-#ifdef __LITTLE_ENDIAN__
- int len = nb; /* save a copy of the length for byte reversal */
-#endif
+ int err = 0;
+ int c;
- /* unaligned, do this in pieces */
- x = 0;
for (; nb > 0; nb -= c) {
-#ifdef __LITTLE_ENDIAN__
- c = 1;
-#endif
-#ifdef __BIG_ENDIAN__
c = max_align(ea);
-#endif
if (c > nb)
c = max_align(nb);
- err = read_mem_aligned(&b, ea, c);
- if (err)
- return err;
- x = (x << (8 * c)) + b;
- ea += c;
- }
-#ifdef __LITTLE_ENDIAN__
- switch (len) {
- case 2:
- *dest = byterev_2(x);
- break;
- case 4:
- *dest = byterev_4(x);
- break;
+ switch (c) {
+ case 1:
+ err = __get_user(*dest, (unsigned char __user *) ea);
+ break;
+ case 2:
+ err = __get_user(*(u16 *)dest,
+ (unsigned short __user *) ea);
+ break;
+ case 4:
+ err = __get_user(*(u32 *)dest,
+ (unsigned int __user *) ea);
+ break;
#ifdef __powerpc64__
- case 8:
- *dest = byterev_8(x);
- break;
+ case 8:
+ err = __get_user(*(unsigned long *)dest,
+ (unsigned long __user *) ea);
+ break;
#endif
+ }
+ if (err) {
+ regs->dar = ea;
+ return err;
+ }
+ dest += c;
+ ea += c;
}
-#endif
-#ifdef __BIG_ENDIAN__
- *dest = x;
-#endif
return 0;
}
+static nokprobe_inline int read_mem_unaligned(unsigned long *dest,
+ unsigned long ea, int nb,
+ struct pt_regs *regs)
+{
+ union {
+ unsigned long ul;
+ u8 b[sizeof(unsigned long)];
+ } u;
+ int i;
+ int err;
+
+ u.ul = 0;
+ i = IS_BE ? sizeof(unsigned long) - nb : 0;
+ err = copy_mem_in(&u.b[i], ea, nb, regs);
+ if (!err)
+ *dest = u.ul;
+ return err;
+}
+
/*
* Read memory at address ea for nb bytes, return 0 for success
- * or -EFAULT if an error occurred.
+ * or -EFAULT if an error occurred. N.B. nb must be 1, 2, 4 or 8.
+ * If nb < sizeof(long), the result is right-justified on BE systems.
*/
static int read_mem(unsigned long *dest, unsigned long ea, int nb,
struct pt_regs *regs)
@@ -254,13 +347,14 @@ static int read_mem(unsigned long *dest, unsigned long ea, int nb,
if (!address_ok(regs, ea, nb))
return -EFAULT;
if ((ea & (nb - 1)) == 0)
- return read_mem_aligned(dest, ea, nb);
+ return read_mem_aligned(dest, ea, nb, regs);
return read_mem_unaligned(dest, ea, nb, regs);
}
NOKPROBE_SYMBOL(read_mem);
static nokprobe_inline int write_mem_aligned(unsigned long val,
- unsigned long ea, int nb)
+ unsigned long ea, int nb,
+ struct pt_regs *regs)
{
int err = 0;
@@ -280,51 +374,72 @@ static nokprobe_inline int write_mem_aligned(unsigned long val,
break;
#endif
}
+ if (err)
+ regs->dar = ea;
return err;
}
-static nokprobe_inline int write_mem_unaligned(unsigned long val,
- unsigned long ea, int nb, struct pt_regs *regs)
+/*
+ * Copy from a buffer to userspace, using the largest possible
+ * aligned accesses, up to sizeof(long).
+ */
+static int nokprobe_inline copy_mem_out(u8 *dest, unsigned long ea, int nb,
+ struct pt_regs *regs)
{
- int err;
- unsigned long c;
+ int err = 0;
+ int c;
-#ifdef __LITTLE_ENDIAN__
- switch (nb) {
- case 2:
- val = byterev_2(val);
- break;
- case 4:
- val = byterev_4(val);
- break;
-#ifdef __powerpc64__
- case 8:
- val = byterev_8(val);
- break;
-#endif
- }
-#endif
- /* unaligned or little-endian, do this in pieces */
for (; nb > 0; nb -= c) {
-#ifdef __LITTLE_ENDIAN__
- c = 1;
-#endif
-#ifdef __BIG_ENDIAN__
c = max_align(ea);
-#endif
if (c > nb)
c = max_align(nb);
- err = write_mem_aligned(val >> (nb - c) * 8, ea, c);
- if (err)
+ switch (c) {
+ case 1:
+ err = __put_user(*dest, (unsigned char __user *) ea);
+ break;
+ case 2:
+ err = __put_user(*(u16 *)dest,
+ (unsigned short __user *) ea);
+ break;
+ case 4:
+ err = __put_user(*(u32 *)dest,
+ (unsigned int __user *) ea);
+ break;
+#ifdef __powerpc64__
+ case 8:
+ err = __put_user(*(unsigned long *)dest,
+ (unsigned long __user *) ea);
+ break;
+#endif
+ }
+ if (err) {
+ regs->dar = ea;
return err;
+ }
+ dest += c;
ea += c;
}
return 0;
}
+static nokprobe_inline int write_mem_unaligned(unsigned long val,
+ unsigned long ea, int nb,
+ struct pt_regs *regs)
+{
+ union {
+ unsigned long ul;
+ u8 b[sizeof(unsigned long)];
+ } u;
+ int i;
+
+ u.ul = val;
+ i = IS_BE ? sizeof(unsigned long) - nb : 0;
+ return copy_mem_out(&u.b[i], ea, nb, regs);
+}
+
/*
* Write memory at address ea for nb bytes, return 0 for success
- * or -EFAULT if an error occurred.
+ * or -EFAULT if an error occurred. N.B. nb must be 1, 2, 4 or 8.
*/
static int write_mem(unsigned long val, unsigned long ea, int nb,
struct pt_regs *regs)
@@ -332,163 +447,465 @@ static int write_mem(unsigned long val, unsigned long ea, int nb,
if (!address_ok(regs, ea, nb))
return -EFAULT;
if ((ea & (nb - 1)) == 0)
- return write_mem_aligned(val, ea, nb);
+ return write_mem_aligned(val, ea, nb, regs);
return write_mem_unaligned(val, ea, nb, regs);
}
NOKPROBE_SYMBOL(write_mem);
#ifdef CONFIG_PPC_FPU
/*
- * Check the address and alignment, and call func to do the actual
- * load or store.
+ * These access either the real FP register or the image in the
+ * thread_struct, depending on regs->msr & MSR_FP.
*/
-static int do_fp_load(int rn, int (*func)(int, unsigned long),
- unsigned long ea, int nb,
- struct pt_regs *regs)
+static int do_fp_load(struct instruction_op *op, unsigned long ea,
+ struct pt_regs *regs, bool cross_endian)
{
- int err;
+ int err, rn, nb;
union {
- double dbl;
- unsigned long ul[2];
- struct {
-#ifdef __BIG_ENDIAN__
- unsigned _pad_;
- unsigned word;
-#endif
-#ifdef __LITTLE_ENDIAN__
- unsigned word;
- unsigned _pad_;
-#endif
- } single;
- } data;
- unsigned long ptr;
-
+ int i;
+ unsigned int u;
+ float f;
+ double d[2];
+ unsigned long l[2];
+ u8 b[2 * sizeof(double)];
+ } u;
+
+ nb = GETSIZE(op->type);
if (!address_ok(regs, ea, nb))
return -EFAULT;
- if ((ea & 3) == 0)
- return (*func)(rn, ea);
- ptr = (unsigned long) &data.ul;
- if (sizeof(unsigned long) == 8 || nb == 4) {
- err = read_mem_unaligned(&data.ul[0], ea, nb, regs);
- if (nb == 4)
- ptr = (unsigned long)&(data.single.word);
- } else {
- /* reading a double on 32-bit */
- err = read_mem_unaligned(&data.ul[0], ea, 4, regs);
- if (!err)
- err = read_mem_unaligned(&data.ul[1], ea + 4, 4, regs);
- }
+ rn = op->reg;
+ err = copy_mem_in(u.b, ea, nb, regs);
if (err)
return err;
- return (*func)(rn, ptr);
+ if (unlikely(cross_endian)) {
+ do_byte_reverse(u.b, min(nb, 8));
+ if (nb == 16)
+ do_byte_reverse(&u.b[8], 8);
+ }
+ preempt_disable();
+ if (nb == 4) {
+ if (op->type & FPCONV)
+ conv_sp_to_dp(&u.f, &u.d[0]);
+ else if (op->type & SIGNEXT)
+ u.l[0] = u.i;
+ else
+ u.l[0] = u.u;
+ }
+ if (regs->msr & MSR_FP)
+ put_fpr(rn, &u.d[0]);
+ else
+ current->thread.TS_FPR(rn) = u.l[0];
+ if (nb == 16) {
+ /* lfdp */
+ rn |= 1;
+ if (regs->msr & MSR_FP)
+ put_fpr(rn, &u.d[1]);
+ else
+ current->thread.TS_FPR(rn) = u.l[1];
+ }
+ preempt_enable();
+ return 0;
}
NOKPROBE_SYMBOL(do_fp_load);
-static int do_fp_store(int rn, int (*func)(int, unsigned long),
- unsigned long ea, int nb,
- struct pt_regs *regs)
+static int do_fp_store(struct instruction_op *op, unsigned long ea,
+ struct pt_regs *regs, bool cross_endian)
{
- int err;
+ int rn, nb;
union {
- double dbl;
- unsigned long ul[2];
- struct {
-#ifdef __BIG_ENDIAN__
- unsigned _pad_;
- unsigned word;
-#endif
-#ifdef __LITTLE_ENDIAN__
- unsigned word;
- unsigned _pad_;
-#endif
- } single;
- } data;
- unsigned long ptr;
-
+ unsigned int u;
+ float f;
+ double d[2];
+ unsigned long l[2];
+ u8 b[2 * sizeof(double)];
+ } u;
+
+ nb = GETSIZE(op->type);
if (!address_ok(regs, ea, nb))
return -EFAULT;
- if ((ea & 3) == 0)
- return (*func)(rn, ea);
- ptr = (unsigned long) &data.ul[0];
- if (sizeof(unsigned long) == 8 || nb == 4) {
- if (nb == 4)
- ptr = (unsigned long)&(data.single.word);
- err = (*func)(rn, ptr);
- if (err)
- return err;
- err = write_mem_unaligned(data.ul[0], ea, nb, regs);
- } else {
- /* writing a double on 32-bit */
- err = (*func)(rn, ptr);
- if (err)
- return err;
- err = write_mem_unaligned(data.ul[0], ea, 4, regs);
- if (!err)
- err = write_mem_unaligned(data.ul[1], ea + 4, 4, regs);
+ rn = op->reg;
+ preempt_disable();
+ if (regs->msr & MSR_FP)
+ get_fpr(rn, &u.d[0]);
+ else
+ u.l[0] = current->thread.TS_FPR(rn);
+ if (nb == 4) {
+ if (op->type & FPCONV)
+ conv_dp_to_sp(&u.d[0], &u.f);
+ else
+ u.u = u.l[0];
}
- return err;
+ if (nb == 16) {
+ rn |= 1;
+ if (regs->msr & MSR_FP)
+ get_fpr(rn, &u.d[1]);
+ else
+ u.l[1] = current->thread.TS_FPR(rn);
+ }
+ preempt_enable();
+ if (unlikely(cross_endian)) {
+ do_byte_reverse(u.b, min(nb, 8));
+ if (nb == 16)
+ do_byte_reverse(&u.b[8], 8);
+ }
+ return copy_mem_out(u.b, ea, nb, regs);
}
NOKPROBE_SYMBOL(do_fp_store);
#endif
#ifdef CONFIG_ALTIVEC
/* For Altivec/VMX, no need to worry about alignment */
-static nokprobe_inline int do_vec_load(int rn, int (*func)(int, unsigned long),
- unsigned long ea, struct pt_regs *regs)
+static nokprobe_inline int do_vec_load(int rn, unsigned long ea,
+ int size, struct pt_regs *regs,
+ bool cross_endian)
{
+ int err;
+ union {
+ __vector128 v;
+ u8 b[sizeof(__vector128)];
+ } u = {};
+
if (!address_ok(regs, ea & ~0xfUL, 16))
return -EFAULT;
- return (*func)(rn, ea);
+ /* align to multiple of size */
+ ea &= ~(size - 1);
+ err = copy_mem_in(&u.b[ea & 0xf], ea, size, regs);
+ if (err)
+ return err;
+ if (unlikely(cross_endian))
+ do_byte_reverse(&u.b[ea & 0xf], size);
+ preempt_disable();
+ if (regs->msr & MSR_VEC)
+ put_vr(rn, &u.v);
+ else
+ current->thread.vr_state.vr[rn] = u.v;
+ preempt_enable();
+ return 0;
}
-static nokprobe_inline int do_vec_store(int rn, int (*func)(int, unsigned long),
- unsigned long ea, struct pt_regs *regs)
+static nokprobe_inline int do_vec_store(int rn, unsigned long ea,
+ int size, struct pt_regs *regs,
+ bool cross_endian)
{
+ union {
+ __vector128 v;
+ u8 b[sizeof(__vector128)];
+ } u;
+
if (!address_ok(regs, ea & ~0xfUL, 16))
return -EFAULT;
- return (*func)(rn, ea);
+ /* align to multiple of size */
+ ea &= ~(size - 1);
+
+ preempt_disable();
+ if (regs->msr & MSR_VEC)
+ get_vr(rn, &u.v);
+ else
+ u.v = current->thread.vr_state.vr[rn];
+ preempt_enable();
+ if (unlikely(cross_endian))
+ do_byte_reverse(&u.b[ea & 0xf], size);
+ return copy_mem_out(&u.b[ea & 0xf], ea, size, regs);
}
#endif /* CONFIG_ALTIVEC */
-#ifdef CONFIG_VSX
-static nokprobe_inline int do_vsx_load(int rn, int (*func)(int, unsigned long),
- unsigned long ea, struct pt_regs *regs)
+#ifdef __powerpc64__
+static nokprobe_inline int emulate_lq(struct pt_regs *regs, unsigned long ea,
+ int reg, bool cross_endian)
{
int err;
- unsigned long val[2];
if (!address_ok(regs, ea, 16))
return -EFAULT;
- if ((ea & 3) == 0)
- return (*func)(rn, ea);
- err = read_mem_unaligned(&val[0], ea, 8, regs);
- if (!err)
- err = read_mem_unaligned(&val[1], ea + 8, 8, regs);
- if (!err)
- err = (*func)(rn, (unsigned long) &val[0]);
+ /* if aligned, should be atomic */
+ if ((ea & 0xf) == 0) {
+ err = do_lq(ea, &regs->gpr[reg]);
+ } else {
+ err = read_mem(&regs->gpr[reg + IS_LE], ea, 8, regs);
+ if (!err)
+ err = read_mem(&regs->gpr[reg + IS_BE], ea + 8, 8, regs);
+ }
+ if (!err && unlikely(cross_endian))
+ do_byte_reverse(&regs->gpr[reg], 16);
return err;
}
-static nokprobe_inline int do_vsx_store(int rn, int (*func)(int, unsigned long),
- unsigned long ea, struct pt_regs *regs)
+static nokprobe_inline int emulate_stq(struct pt_regs *regs, unsigned long ea,
+ int reg, bool cross_endian)
{
int err;
- unsigned long val[2];
+ unsigned long vals[2];
if (!address_ok(regs, ea, 16))
return -EFAULT;
- if ((ea & 3) == 0)
- return (*func)(rn, ea);
- err = (*func)(rn, (unsigned long) &val[0]);
- if (err)
- return err;
- err = write_mem_unaligned(val[0], ea, 8, regs);
+ vals[0] = regs->gpr[reg];
+ vals[1] = regs->gpr[reg + 1];
+ if (unlikely(cross_endian))
+ do_byte_reverse(vals, 16);
+
+ /* if aligned, should be atomic */
+ if ((ea & 0xf) == 0)
+ return do_stq(ea, vals[0], vals[1]);
+
+ err = write_mem(vals[IS_LE], ea, 8, regs);
if (!err)
- err = write_mem_unaligned(val[1], ea + 8, 8, regs);
+ err = write_mem(vals[IS_BE], ea + 8, 8, regs);
return err;
}
+#endif /* __powerpc64 */
+
+#ifdef CONFIG_VSX
+void emulate_vsx_load(struct instruction_op *op, union vsx_reg *reg,
+ const void *mem, bool rev)
+{
+ int size, read_size;
+ int i, j;
+ const unsigned int *wp;
+ const unsigned short *hp;
+ const unsigned char *bp;
+
+ size = GETSIZE(op->type);
+ reg->d[0] = reg->d[1] = 0;
+
+ switch (op->element_size) {
+ case 16:
+ /* whole vector; lxv[x] or lxvl[l] */
+ if (size == 0)
+ break;
+ memcpy(reg, mem, size);
+ if (IS_LE && (op->vsx_flags & VSX_LDLEFT))
+ rev = !rev;
+ if (rev)
+ do_byte_reverse(reg, 16);
+ break;
+ case 8:
+ /* scalar loads, lxvd2x, lxvdsx */
+ read_size = (size >= 8) ? 8 : size;
+ i = IS_LE ? 8 : 8 - read_size;
+ memcpy(&reg->b[i], mem, read_size);
+ if (rev)
+ do_byte_reverse(&reg->b[i], 8);
+ if (size < 8) {
+ if (op->type & SIGNEXT) {
+ /* size == 4 is the only case here */
+ reg->d[IS_LE] = (signed int) reg->d[IS_LE];
+ } else if (op->vsx_flags & VSX_FPCONV) {
+ preempt_disable();
+ conv_sp_to_dp(&reg->fp[1 + IS_LE],
+ &reg->dp[IS_LE]);
+ preempt_enable();
+ }
+ } else {
+ if (size == 16) {
+ unsigned long v = *(unsigned long *)(mem + 8);
+ reg->d[IS_BE] = !rev ? v : byterev_8(v);
+ } else if (op->vsx_flags & VSX_SPLAT)
+ reg->d[IS_BE] = reg->d[IS_LE];
+ }
+ break;
+ case 4:
+ /* lxvw4x, lxvwsx */
+ wp = mem;
+ for (j = 0; j < size / 4; ++j) {
+ i = IS_LE ? 3 - j : j;
+ reg->w[i] = !rev ? *wp++ : byterev_4(*wp++);
+ }
+ if (op->vsx_flags & VSX_SPLAT) {
+ u32 val = reg->w[IS_LE ? 3 : 0];
+ for (; j < 4; ++j) {
+ i = IS_LE ? 3 - j : j;
+ reg->w[i] = val;
+ }
+ }
+ break;
+ case 2:
+ /* lxvh8x */
+ hp = mem;
+ for (j = 0; j < size / 2; ++j) {
+ i = IS_LE ? 7 - j : j;
+ reg->h[i] = !rev ? *hp++ : byterev_2(*hp++);
+ }
+ break;
+ case 1:
+ /* lxvb16x */
+ bp = mem;
+ for (j = 0; j < size; ++j) {
+ i = IS_LE ? 15 - j : j;
+ reg->b[i] = *bp++;
+ }
+ break;
+ }
+}
+EXPORT_SYMBOL_GPL(emulate_vsx_load);
+NOKPROBE_SYMBOL(emulate_vsx_load);
+
+void emulate_vsx_store(struct instruction_op *op, const union vsx_reg *reg,
+ void *mem, bool rev)
+{
+ int size, write_size;
+ int i, j;
+ union vsx_reg buf;
+ unsigned int *wp;
+ unsigned short *hp;
+ unsigned char *bp;
+
+ size = GETSIZE(op->type);
+
+ switch (op->element_size) {
+ case 16:
+ /* stxv, stxvx, stxvl, stxvll */
+ if (size == 0)
+ break;
+ if (IS_LE && (op->vsx_flags & VSX_LDLEFT))
+ rev = !rev;
+ if (rev) {
+ /* reverse 16 bytes */
+ buf.d[0] = byterev_8(reg->d[1]);
+ buf.d[1] = byterev_8(reg->d[0]);
+ reg = &buf;
+ }
+ memcpy(mem, reg, size);
+ break;
+ case 8:
+ /* scalar stores, stxvd2x */
+ write_size = (size >= 8) ? 8 : size;
+ i = IS_LE ? 8 : 8 - write_size;
+ if (size < 8 && op->vsx_flags & VSX_FPCONV) {
+ buf.d[0] = buf.d[1] = 0;
+ preempt_disable();
+ conv_dp_to_sp(&reg->dp[IS_LE], &buf.fp[1 + IS_LE]);
+ preempt_enable();
+ reg = &buf;
+ }
+ memcpy(mem, &reg->b[i], write_size);
+ if (size == 16)
+ memcpy(mem + 8, &reg->d[IS_BE], 8);
+ if (unlikely(rev)) {
+ do_byte_reverse(mem, write_size);
+ if (size == 16)
+ do_byte_reverse(mem + 8, 8);
+ }
+ break;
+ case 4:
+ /* stxvw4x */
+ wp = mem;
+ for (j = 0; j < size / 4; ++j) {
+ i = IS_LE ? 3 - j : j;
+ *wp++ = !rev ? reg->w[i] : byterev_4(reg->w[i]);
+ }
+ break;
+ case 2:
+ /* stxvh8x */
+ hp = mem;
+ for (j = 0; j < size / 2; ++j) {
+ i = IS_LE ? 7 - j : j;
+ *hp++ = !rev ? reg->h[i] : byterev_2(reg->h[i]);
+ }
+ break;
+ case 1:
+ /* stvxb16x */
+ bp = mem;
+ for (j = 0; j < size; ++j) {
+ i = IS_LE ? 15 - j : j;
+ *bp++ = reg->b[i];
+ }
+ break;
+ }
+}
+EXPORT_SYMBOL_GPL(emulate_vsx_store);
+NOKPROBE_SYMBOL(emulate_vsx_store);
+
+static nokprobe_inline int do_vsx_load(struct instruction_op *op,
+ unsigned long ea, struct pt_regs *regs,
+ bool cross_endian)
+{
+ int reg = op->reg;
+ u8 mem[16];
+ union vsx_reg buf;
+ int size = GETSIZE(op->type);
+
+ if (!address_ok(regs, ea, size) || copy_mem_in(mem, ea, size, regs))
+ return -EFAULT;
+
+ emulate_vsx_load(op, &buf, mem, cross_endian);
+ preempt_disable();
+ if (reg < 32) {
+ /* FP regs + extensions */
+ if (regs->msr & MSR_FP) {
+ load_vsrn(reg, &buf);
+ } else {
+ current->thread.fp_state.fpr[reg][0] = buf.d[0];
+ current->thread.fp_state.fpr[reg][1] = buf.d[1];
+ }
+ } else {
+ if (regs->msr & MSR_VEC)
+ load_vsrn(reg, &buf);
+ else
+ current->thread.vr_state.vr[reg - 32] = buf.v;
+ }
+ preempt_enable();
+ return 0;
+}
+
+static nokprobe_inline int do_vsx_store(struct instruction_op *op,
+ unsigned long ea, struct pt_regs *regs,
+ bool cross_endian)
+{
+ int reg = op->reg;
+ u8 mem[16];
+ union vsx_reg buf;
+ int size = GETSIZE(op->type);
+
+ if (!address_ok(regs, ea, size))
+ return -EFAULT;
+
+ preempt_disable();
+ if (reg < 32) {
+ /* FP regs + extensions */
+ if (regs->msr & MSR_FP) {
+ store_vsrn(reg, &buf);
+ } else {
+ buf.d[0] = current->thread.fp_state.fpr[reg][0];
+ buf.d[1] = current->thread.fp_state.fpr[reg][1];
+ }
+ } else {
+ if (regs->msr & MSR_VEC)
+ store_vsrn(reg, &buf);
+ else
+ buf.v = current->thread.vr_state.vr[reg - 32];
+ }
+ preempt_enable();
+ emulate_vsx_store(op, &buf, mem, cross_endian);
+ return copy_mem_out(mem, ea, size, regs);
+}
#endif /* CONFIG_VSX */
+int emulate_dcbz(unsigned long ea, struct pt_regs *regs)
+{
+ int err;
+ unsigned long i, size;
+
+#ifdef __powerpc64__
+ size = ppc64_caches.l1d.block_size;
+ if (!(regs->msr & MSR_64BIT))
+ ea &= 0xffffffffUL;
+#else
+ size = L1_CACHE_BYTES;
+#endif
+ ea &= ~(size - 1);
+ if (!address_ok(regs, ea, size))
+ return -EFAULT;
+ for (i = 0; i < size; i += sizeof(long)) {
+ err = __put_user(0, (unsigned long __user *) (ea + i));
+ if (err) {
+ regs->dar = ea;
+ return err;
+ }
+ }
+ return 0;
+}
+NOKPROBE_SYMBOL(emulate_dcbz);
+
#define __put_user_asmx(x, addr, err, op, cr) \
__asm__ __volatile__( \
"1: " op " %2,0,%3\n" \
@@ -526,24 +943,27 @@ static nokprobe_inline int do_vsx_store(int rn, int (*func)(int, unsigned long),
: "=r" (err) \
: "r" (addr), "i" (-EFAULT), "0" (err))
-static nokprobe_inline void set_cr0(struct pt_regs *regs, int rd)
+static nokprobe_inline void set_cr0(const struct pt_regs *regs,
+ struct instruction_op *op)
{
- long val = regs->gpr[rd];
+ long val = op->val;
- regs->ccr = (regs->ccr & 0x0fffffff) | ((regs->xer >> 3) & 0x10000000);
+ op->type |= SETCC;
+ op->ccval = (regs->ccr & 0x0fffffff) | ((regs->xer >> 3) & 0x10000000);
#ifdef __powerpc64__
if (!(regs->msr & MSR_64BIT))
val = (int) val;
#endif
if (val < 0)
- regs->ccr |= 0x80000000;
+ op->ccval |= 0x80000000;
else if (val > 0)
- regs->ccr |= 0x40000000;
+ op->ccval |= 0x40000000;
else
- regs->ccr |= 0x20000000;
+ op->ccval |= 0x20000000;
}
-static nokprobe_inline void add_with_carry(struct pt_regs *regs, int rd,
+static nokprobe_inline void add_with_carry(const struct pt_regs *regs,
+ struct instruction_op *op, int rd,
unsigned long val1, unsigned long val2,
unsigned long carry_in)
{
@@ -551,24 +971,29 @@ static nokprobe_inline void add_with_carry(struct pt_regs *regs, int rd,
if (carry_in)
++val;
- regs->gpr[rd] = val;
+ op->type = COMPUTE + SETREG + SETXER;
+ op->reg = rd;
+ op->val = val;
#ifdef __powerpc64__
if (!(regs->msr & MSR_64BIT)) {
val = (unsigned int) val;
val1 = (unsigned int) val1;
}
#endif
+ op->xerval = regs->xer;
if (val < val1 || (carry_in && val == val1))
- regs->xer |= XER_CA;
+ op->xerval |= XER_CA;
else
- regs->xer &= ~XER_CA;
+ op->xerval &= ~XER_CA;
}
-static nokprobe_inline void do_cmp_signed(struct pt_regs *regs, long v1, long v2,
- int crfld)
+static nokprobe_inline void do_cmp_signed(const struct pt_regs *regs,
+ struct instruction_op *op,
+ long v1, long v2, int crfld)
{
unsigned int crval, shift;
+ op->type = COMPUTE + SETCC;
crval = (regs->xer >> 31) & 1; /* get SO bit */
if (v1 < v2)
crval |= 8;
@@ -577,14 +1002,17 @@ static nokprobe_inline void do_cmp_signed(struct pt_regs *regs, long v1, long v2
else
crval |= 2;
shift = (7 - crfld) * 4;
- regs->ccr = (regs->ccr & ~(0xf << shift)) | (crval << shift);
+ op->ccval = (regs->ccr & ~(0xf << shift)) | (crval << shift);
}
-static nokprobe_inline void do_cmp_unsigned(struct pt_regs *regs, unsigned long v1,
- unsigned long v2, int crfld)
+static nokprobe_inline void do_cmp_unsigned(const struct pt_regs *regs,
+ struct instruction_op *op,
+ unsigned long v1,
+ unsigned long v2, int crfld)
{
unsigned int crval, shift;
+ op->type = COMPUTE + SETCC;
crval = (regs->xer >> 31) & 1; /* get SO bit */
if (v1 < v2)
crval |= 8;
@@ -593,7 +1021,90 @@ static nokprobe_inline void do_cmp_unsigned(struct pt_regs *regs, unsigned long
else
crval |= 2;
shift = (7 - crfld) * 4;
- regs->ccr = (regs->ccr & ~(0xf << shift)) | (crval << shift);
+ op->ccval = (regs->ccr & ~(0xf << shift)) | (crval << shift);
+}
+
+static nokprobe_inline void do_cmpb(const struct pt_regs *regs,
+ struct instruction_op *op,
+ unsigned long v1, unsigned long v2)
+{
+ unsigned long long out_val, mask;
+ int i;
+
+ out_val = 0;
+ for (i = 0; i < 8; i++) {
+ mask = 0xffUL << (i * 8);
+ if ((v1 & mask) == (v2 & mask))
+ out_val |= mask;
+ }
+ op->val = out_val;
+}
+
+/*
+ * The size parameter is used to adjust the equivalent popcnt instruction.
+ * popcntb = 8, popcntw = 32, popcntd = 64
+ */
+static nokprobe_inline void do_popcnt(const struct pt_regs *regs,
+ struct instruction_op *op,
+ unsigned long v1, int size)
+{
+ unsigned long long out = v1;
+
+ out -= (out >> 1) & 0x5555555555555555;
+ out = (0x3333333333333333 & out) + (0x3333333333333333 & (out >> 2));
+ out = (out + (out >> 4)) & 0x0f0f0f0f0f0f0f0f;
+
+ if (size == 8) { /* popcntb */
+ op->val = out;
+ return;
+ }
+ out += out >> 8;
+ out += out >> 16;
+ if (size == 32) { /* popcntw */
+ op->val = out & 0x0000003f0000003f;
+ return;
+ }
+
+ out = (out + (out >> 32)) & 0x7f;
+ op->val = out; /* popcntd */
+}
+
+#ifdef CONFIG_PPC64
+static nokprobe_inline void do_bpermd(const struct pt_regs *regs,
+ struct instruction_op *op,
+ unsigned long v1, unsigned long v2)
+{
+ unsigned char perm, idx;
+ unsigned int i;
+
+ perm = 0;
+ for (i = 0; i < 8; i++) {
+ idx = (v1 >> (i * 8)) & 0xff;
+ if (idx < 64)
+ if (v2 & PPC_BIT(idx))
+ perm |= 1 << i;
+ }
+ op->val = perm;
+}
+#endif /* CONFIG_PPC64 */
+/*
+ * The size parameter adjusts the equivalent prty instruction.
+ * prtyw = 32, prtyd = 64
+ */
+static nokprobe_inline void do_prty(const struct pt_regs *regs,
+ struct instruction_op *op,
+ unsigned long v, int size)
+{
+ unsigned long long res = v ^ (v >> 8);
+
+ res ^= res >> 16;
+ if (size == 32) { /* prtyw */
+ op->val = res & 0x0000000100000001;
+ return;
+ }
+
+ res ^= res >> 32;
+ op->val = res & 1; /*prtyd */
}
static nokprobe_inline int trap_compare(long v1, long v2)
@@ -629,14 +1140,18 @@ static nokprobe_inline int trap_compare(long v1, long v2)
#define ROTATE(x, n) ((n) ? (((x) << (n)) | ((x) >> (8 * sizeof(long) - (n)))) : (x))
/*
- * Decode an instruction, and execute it if that can be done just by
- * modifying *regs (i.e. integer arithmetic and logical instructions,
- * branches, and barrier instructions).
- * Returns 1 if the instruction has been executed, or 0 if not.
- * Sets *op to indicate what the instruction does.
+ * Decode an instruction, and return information about it in *op
+ * without changing *regs.
+ * Integer arithmetic and logical instructions, branches, and barrier
+ * instructions can be emulated just using the information in *op.
+ *
+ * Return value is 1 if the instruction can be emulated just by
+ * updating *regs with the information in *op, -1 if we need the
+ * GPRs but *regs doesn't contain the full register set, or 0
+ * otherwise.
*/
-int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
- unsigned int instr)
+int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
+ unsigned int instr)
{
unsigned int opcode, ra, rb, rd, spr, u;
unsigned long int imm;
@@ -653,12 +1168,11 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
imm = (signed short)(instr & 0xfffc);
if ((instr & 2) == 0)
imm += regs->nip;
- regs->nip += 4;
- regs->nip = truncate_if_32bit(regs->msr, regs->nip);
+ op->val = truncate_if_32bit(regs->msr, imm);
if (instr & 1)
- regs->link = regs->nip;
- if (branch_taken(instr, regs))
- regs->nip = truncate_if_32bit(regs->msr, imm);
+ op->type |= SETLK;
+ if (branch_taken(instr, regs, op))
+ op->type |= BRTAKEN;
return 1;
#ifdef CONFIG_PPC64
case 17: /* sc */
@@ -669,36 +1183,37 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
return 0;
#endif
case 18: /* b */
- op->type = BRANCH;
+ op->type = BRANCH | BRTAKEN;
imm = instr & 0x03fffffc;
if (imm & 0x02000000)
imm -= 0x04000000;
if ((instr & 2) == 0)
imm += regs->nip;
+ op->val = truncate_if_32bit(regs->msr, imm);
if (instr & 1)
- regs->link = truncate_if_32bit(regs->msr, regs->nip + 4);
- imm = truncate_if_32bit(regs->msr, imm);
- regs->nip = imm;
+ op->type |= SETLK;
return 1;
case 19:
switch ((instr >> 1) & 0x3ff) {
case 0: /* mcrf */
- rd = (instr >> 21) & 0x1c;
- ra = (instr >> 16) & 0x1c;
+ op->type = COMPUTE + SETCC;
+ rd = 7 - ((instr >> 23) & 0x7);
+ ra = 7 - ((instr >> 18) & 0x7);
+ rd *= 4;
+ ra *= 4;
val = (regs->ccr >> ra) & 0xf;
- regs->ccr = (regs->ccr & ~(0xfUL << rd)) | (val << rd);
- goto instr_done;
+ op->ccval = (regs->ccr & ~(0xfUL << rd)) | (val << rd);
+ return 1;
case 16: /* bclr */
case 528: /* bcctr */
op->type = BRANCH;
imm = (instr & 0x400)? regs->ctr: regs->link;
- regs->nip = truncate_if_32bit(regs->msr, regs->nip + 4);
- imm = truncate_if_32bit(regs->msr, imm);
+ op->val = truncate_if_32bit(regs->msr, imm);
if (instr & 1)
- regs->link = regs->nip;
- if (branch_taken(instr, regs))
- regs->nip = imm;
+ op->type |= SETLK;
+ if (branch_taken(instr, regs, op))
+ op->type |= BRTAKEN;
return 1;
case 18: /* rfid, scary */
@@ -708,9 +1223,8 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
return 0;
case 150: /* isync */
- op->type = BARRIER;
- isync();
- goto instr_done;
+ op->type = BARRIER | BARRIER_ISYNC;
+ return 1;
case 33: /* crnor */
case 129: /* crandc */
@@ -720,45 +1234,44 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
case 289: /* creqv */
case 417: /* crorc */
case 449: /* cror */
+ op->type = COMPUTE + SETCC;
ra = (instr >> 16) & 0x1f;
rb = (instr >> 11) & 0x1f;
rd = (instr >> 21) & 0x1f;
ra = (regs->ccr >> (31 - ra)) & 1;
rb = (regs->ccr >> (31 - rb)) & 1;
val = (instr >> (6 + ra * 2 + rb)) & 1;
- regs->ccr = (regs->ccr & ~(1UL << (31 - rd))) |
+ op->ccval = (regs->ccr & ~(1UL << (31 - rd))) |
(val << (31 - rd));
- goto instr_done;
+ return 1;
}
break;
case 31:
switch ((instr >> 1) & 0x3ff) {
case 598: /* sync */
- op->type = BARRIER;
+ op->type = BARRIER + BARRIER_SYNC;
#ifdef __powerpc64__
switch ((instr >> 21) & 3) {
case 1: /* lwsync */
- asm volatile("lwsync" : : : "memory");
- goto instr_done;
+ op->type = BARRIER + BARRIER_LWSYNC;
+ break;
case 2: /* ptesync */
- asm volatile("ptesync" : : : "memory");
- goto instr_done;
+ op->type = BARRIER + BARRIER_PTESYNC;
+ break;
}
#endif
- mb();
- goto instr_done;
+ return 1;
case 854: /* eieio */
- op->type = BARRIER;
- eieio();
- goto instr_done;
+ op->type = BARRIER + BARRIER_EIEIO;
+ return 1;
}
break;
}
/* Following cases refer to regs->gpr[], so we need all regs */
if (!FULL_REGS(regs))
- return 0;
+ return -1;
rd = (instr >> 21) & 0x1f;
ra = (instr >> 16) & 0x1f;
@@ -769,21 +1282,21 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
case 2: /* tdi */
if (rd & trap_compare(regs->gpr[ra], (short) instr))
goto trap;
- goto instr_done;
+ return 1;
#endif
case 3: /* twi */
if (rd & trap_compare((int)regs->gpr[ra], (short) instr))
goto trap;
- goto instr_done;
+ return 1;
case 7: /* mulli */
- regs->gpr[rd] = regs->gpr[ra] * (short) instr;
- goto instr_done;
+ op->val = regs->gpr[ra] * (short) instr;
+ goto compute_done;
case 8: /* subfic */
imm = (short) instr;
- add_with_carry(regs, rd, ~regs->gpr[ra], imm, 1);
- goto instr_done;
+ add_with_carry(regs, op, rd, ~regs->gpr[ra], imm, 1);
+ return 1;
case 10: /* cmpli */
imm = (unsigned short) instr;
@@ -792,8 +1305,8 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
if ((rd & 1) == 0)
val = (unsigned int) val;
#endif
- do_cmp_unsigned(regs, val, imm, rd >> 2);
- goto instr_done;
+ do_cmp_unsigned(regs, op, val, imm, rd >> 2);
+ return 1;
case 11: /* cmpi */
imm = (short) instr;
@@ -802,47 +1315,58 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
if ((rd & 1) == 0)
val = (int) val;
#endif
- do_cmp_signed(regs, val, imm, rd >> 2);
- goto instr_done;
+ do_cmp_signed(regs, op, val, imm, rd >> 2);
+ return 1;
case 12: /* addic */
imm = (short) instr;
- add_with_carry(regs, rd, regs->gpr[ra], imm, 0);
- goto instr_done;
+ add_with_carry(regs, op, rd, regs->gpr[ra], imm, 0);
+ return 1;
case 13: /* addic. */
imm = (short) instr;
- add_with_carry(regs, rd, regs->gpr[ra], imm, 0);
- set_cr0(regs, rd);
- goto instr_done;
+ add_with_carry(regs, op, rd, regs->gpr[ra], imm, 0);
+ set_cr0(regs, op);
+ return 1;
case 14: /* addi */
imm = (short) instr;
if (ra)
imm += regs->gpr[ra];
- regs->gpr[rd] = imm;
- goto instr_done;
+ op->val = imm;
+ goto compute_done;
case 15: /* addis */
imm = ((short) instr) << 16;
if (ra)
imm += regs->gpr[ra];
- regs->gpr[rd] = imm;
- goto instr_done;
+ op->val = imm;
+ goto compute_done;
+
+ case 19:
+ if (((instr >> 1) & 0x1f) == 2) {
+ /* addpcis */
+ imm = (short) (instr & 0xffc1); /* d0 + d2 fields */
+ imm |= (instr >> 15) & 0x3e; /* d1 field */
+ op->val = regs->nip + (imm << 16) + 4;
+ goto compute_done;
+ }
+ op->type = UNKNOWN;
+ return 0;
case 20: /* rlwimi */
mb = (instr >> 6) & 0x1f;
me = (instr >> 1) & 0x1f;
val = DATA32(regs->gpr[rd]);
imm = MASK32(mb, me);
- regs->gpr[ra] = (regs->gpr[ra] & ~imm) | (ROTATE(val, rb) & imm);
+ op->val = (regs->gpr[ra] & ~imm) | (ROTATE(val, rb) & imm);
goto logical_done;
case 21: /* rlwinm */
mb = (instr >> 6) & 0x1f;
me = (instr >> 1) & 0x1f;
val = DATA32(regs->gpr[rd]);
- regs->gpr[ra] = ROTATE(val, rb) & MASK32(mb, me);
+ op->val = ROTATE(val, rb) & MASK32(mb, me);
goto logical_done;
case 23: /* rlwnm */
@@ -850,40 +1374,37 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
me = (instr >> 1) & 0x1f;
rb = regs->gpr[rb] & 0x1f;
val = DATA32(regs->gpr[rd]);
- regs->gpr[ra] = ROTATE(val, rb) & MASK32(mb, me);
+ op->val = ROTATE(val, rb) & MASK32(mb, me);
goto logical_done;
case 24: /* ori */
- imm = (unsigned short) instr;
- regs->gpr[ra] = regs->gpr[rd] | imm;
- goto instr_done;
+ op->val = regs->gpr[rd] | (unsigned short) instr;
+ goto logical_done_nocc;
case 25: /* oris */
imm = (unsigned short) instr;
- regs->gpr[ra] = regs->gpr[rd] | (imm << 16);
- goto instr_done;
+ op->val = regs->gpr[rd] | (imm << 16);
+ goto logical_done_nocc;
case 26: /* xori */
- imm = (unsigned short) instr;
- regs->gpr[ra] = regs->gpr[rd] ^ imm;
- goto instr_done;
+ op->val = regs->gpr[rd] ^ (unsigned short) instr;
+ goto logical_done_nocc;
case 27: /* xoris */
imm = (unsigned short) instr;
- regs->gpr[ra] = regs->gpr[rd] ^ (imm << 16);
- goto instr_done;
+ op->val = regs->gpr[rd] ^ (imm << 16);
+ goto logical_done_nocc;
case 28: /* andi. */
- imm = (unsigned short) instr;
- regs->gpr[ra] = regs->gpr[rd] & imm;
- set_cr0(regs, ra);
- goto instr_done;
+ op->val = regs->gpr[rd] & (unsigned short) instr;
+ set_cr0(regs, op);
+ goto logical_done_nocc;
case 29: /* andis. */
imm = (unsigned short) instr;
- regs->gpr[ra] = regs->gpr[rd] & (imm << 16);
- set_cr0(regs, ra);
- goto instr_done;
+ op->val = regs->gpr[rd] & (imm << 16);
+ set_cr0(regs, op);
+ goto logical_done_nocc;
#ifdef __powerpc64__
case 30: /* rld* */
@@ -894,48 +1415,60 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
val = ROTATE(val, sh);
switch ((instr >> 2) & 3) {
case 0: /* rldicl */
- regs->gpr[ra] = val & MASK64_L(mb);
- goto logical_done;
+ val &= MASK64_L(mb);
+ break;
case 1: /* rldicr */
- regs->gpr[ra] = val & MASK64_R(mb);
- goto logical_done;
+ val &= MASK64_R(mb);
+ break;
case 2: /* rldic */
- regs->gpr[ra] = val & MASK64(mb, 63 - sh);
- goto logical_done;
+ val &= MASK64(mb, 63 - sh);
+ break;
case 3: /* rldimi */
imm = MASK64(mb, 63 - sh);
- regs->gpr[ra] = (regs->gpr[ra] & ~imm) |
+ val = (regs->gpr[ra] & ~imm) |
(val & imm);
- goto logical_done;
}
+ op->val = val;
+ goto logical_done;
} else {
sh = regs->gpr[rb] & 0x3f;
val = ROTATE(val, sh);
switch ((instr >> 1) & 7) {
case 0: /* rldcl */
- regs->gpr[ra] = val & MASK64_L(mb);
+ op->val = val & MASK64_L(mb);
goto logical_done;
case 1: /* rldcr */
- regs->gpr[ra] = val & MASK64_R(mb);
+ op->val = val & MASK64_R(mb);
goto logical_done;
}
}
#endif
- break; /* illegal instruction */
+ op->type = UNKNOWN; /* illegal instruction */
+ return 0;
case 31:
+ /* isel occupies 32 minor opcodes */
+ if (((instr >> 1) & 0x1f) == 15) {
+ mb = (instr >> 6) & 0x1f; /* bc field */
+ val = (regs->ccr >> (31 - mb)) & 1;
+ val2 = (ra) ? regs->gpr[ra] : 0;
+
+ op->val = (val) ? val2 : regs->gpr[rb];
+ goto compute_done;
+ }
+
switch ((instr >> 1) & 0x3ff) {
case 4: /* tw */
if (rd == 0x1f ||
(rd & trap_compare((int)regs->gpr[ra],
(int)regs->gpr[rb])))
goto trap;
- goto instr_done;
+ return 1;
#ifdef __powerpc64__
case 68: /* td */
if (rd & trap_compare(regs->gpr[ra], regs->gpr[rb]))
goto trap;
- goto instr_done;
+ return 1;
#endif
case 83: /* mfmsr */
if (regs->msr & MSR_PR)
@@ -964,61 +1497,50 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
#endif
case 19: /* mfcr */
- regs->gpr[rd] = regs->ccr;
- regs->gpr[rd] &= 0xffffffffUL;
- goto instr_done;
+ imm = 0xffffffffUL;
+ if ((instr >> 20) & 1) {
+ imm = 0xf0000000UL;
+ for (sh = 0; sh < 8; ++sh) {
+ if (instr & (0x80000 >> sh))
+ break;
+ imm >>= 4;
+ }
+ }
+ op->val = regs->ccr & imm;
+ goto compute_done;
case 144: /* mtcrf */
+ op->type = COMPUTE + SETCC;
imm = 0xf0000000UL;
val = regs->gpr[rd];
+ op->ccval = regs->ccr;
for (sh = 0; sh < 8; ++sh) {
if (instr & (0x80000 >> sh))
- regs->ccr = (regs->ccr & ~imm) |
+ op->ccval = (op->ccval & ~imm) |
(val & imm);
imm >>= 4;
}
- goto instr_done;
+ return 1;
case 339: /* mfspr */
spr = ((instr >> 16) & 0x1f) | ((instr >> 6) & 0x3e0);
- switch (spr) {
- case SPRN_XER: /* mfxer */
- regs->gpr[rd] = regs->xer;
- regs->gpr[rd] &= 0xffffffffUL;
- goto instr_done;
- case SPRN_LR: /* mflr */
- regs->gpr[rd] = regs->link;
- goto instr_done;
- case SPRN_CTR: /* mfctr */
- regs->gpr[rd] = regs->ctr;
- goto instr_done;
- default:
- op->type = MFSPR;
- op->reg = rd;
- op->spr = spr;
- return 0;
- }
- break;
+ op->type = MFSPR;
+ op->reg = rd;
+ op->spr = spr;
+ if (spr == SPRN_XER || spr == SPRN_LR ||
+ spr == SPRN_CTR)
+ return 1;
+ return 0;
case 467: /* mtspr */
spr = ((instr >> 16) & 0x1f) | ((instr >> 6) & 0x3e0);
- switch (spr) {
- case SPRN_XER: /* mtxer */
- regs->xer = (regs->gpr[rd] & 0xffffffffUL);
- goto instr_done;
- case SPRN_LR: /* mtlr */
- regs->link = regs->gpr[rd];
- goto instr_done;
- case SPRN_CTR: /* mtctr */
- regs->ctr = regs->gpr[rd];
- goto instr_done;
- default:
- op->type = MTSPR;
- op->val = regs->gpr[rd];
- op->spr = spr;
- return 0;
- }
- break;
+ op->type = MTSPR;
+ op->val = regs->gpr[rd];
+ op->spr = spr;
+ if (spr == SPRN_XER || spr == SPRN_LR ||
+ spr == SPRN_CTR)
+ return 1;
+ return 0;
/*
* Compare instructions
@@ -1033,8 +1555,8 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
val2 = (int) val2;
}
#endif
- do_cmp_signed(regs, val, val2, rd >> 2);
- goto instr_done;
+ do_cmp_signed(regs, op, val, val2, rd >> 2);
+ return 1;
case 32: /* cmpl */
val = regs->gpr[ra];
@@ -1046,109 +1568,114 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
val2 = (unsigned int) val2;
}
#endif
- do_cmp_unsigned(regs, val, val2, rd >> 2);
- goto instr_done;
+ do_cmp_unsigned(regs, op, val, val2, rd >> 2);
+ return 1;
+
+ case 508: /* cmpb */
+ do_cmpb(regs, op, regs->gpr[rd], regs->gpr[rb]);
+ goto logical_done_nocc;
/*
* Arithmetic instructions
*/
case 8: /* subfc */
- add_with_carry(regs, rd, ~regs->gpr[ra],
+ add_with_carry(regs, op, rd, ~regs->gpr[ra],
regs->gpr[rb], 1);
goto arith_done;
#ifdef __powerpc64__
case 9: /* mulhdu */
- asm("mulhdu %0,%1,%2" : "=r" (regs->gpr[rd]) :
+ asm("mulhdu %0,%1,%2" : "=r" (op->val) :
"r" (regs->gpr[ra]), "r" (regs->gpr[rb]));
goto arith_done;
#endif
case 10: /* addc */
- add_with_carry(regs, rd, regs->gpr[ra],
+ add_with_carry(regs, op, rd, regs->gpr[ra],
regs->gpr[rb], 0);
goto arith_done;
case 11: /* mulhwu */
- asm("mulhwu %0,%1,%2" : "=r" (regs->gpr[rd]) :
+ asm("mulhwu %0,%1,%2" : "=r" (op->val) :
"r" (regs->gpr[ra]), "r" (regs->gpr[rb]));
goto arith_done;
case 40: /* subf */
- regs->gpr[rd] = regs->gpr[rb] - regs->gpr[ra];
+ op->val = regs->gpr[rb] - regs->gpr[ra];
goto arith_done;
#ifdef __powerpc64__
case 73: /* mulhd */
- asm("mulhd %0,%1,%2" : "=r" (regs->gpr[rd]) :
+ asm("mulhd %0,%1,%2" : "=r" (op->val) :
"r" (regs->gpr[ra]), "r" (regs->gpr[rb]));
goto arith_done;
#endif
case 75: /* mulhw */
- asm("mulhw %0,%1,%2" : "=r" (regs->gpr[rd]) :
+ asm("mulhw %0,%1,%2" : "=r" (op->val) :
"r" (regs->gpr[ra]), "r" (regs->gpr[rb]));
goto arith_done;
case 104: /* neg */
- regs->gpr[rd] = -regs->gpr[ra];
+ op->val = -regs->gpr[ra];
goto arith_done;
case 136: /* subfe */
- add_with_carry(regs, rd, ~regs->gpr[ra], regs->gpr[rb],
- regs->xer & XER_CA);
+ add_with_carry(regs, op, rd, ~regs->gpr[ra],
+ regs->gpr[rb], regs->xer & XER_CA);
goto arith_done;
case 138: /* adde */
- add_with_carry(regs, rd, regs->gpr[ra], regs->gpr[rb],
- regs->xer & XER_CA);
+ add_with_carry(regs, op, rd, regs->gpr[ra],
+ regs->gpr[rb], regs->xer & XER_CA);
goto arith_done;
case 200: /* subfze */
- add_with_carry(regs, rd, ~regs->gpr[ra], 0L,
+ add_with_carry(regs, op, rd, ~regs->gpr[ra], 0L,
regs->xer & XER_CA);
goto arith_done;
case 202: /* addze */
- add_with_carry(regs, rd, regs->gpr[ra], 0L,
+ add_with_carry(regs, op, rd, regs->gpr[ra], 0L,
regs->xer & XER_CA);
goto arith_done;
case 232: /* subfme */
- add_with_carry(regs, rd, ~regs->gpr[ra], -1L,
+ add_with_carry(regs, op, rd, ~regs->gpr[ra], -1L,
regs->xer & XER_CA);
goto arith_done;
#ifdef __powerpc64__
case 233: /* mulld */
- regs->gpr[rd] = regs->gpr[ra] * regs->gpr[rb];
+ op->val = regs->gpr[ra] * regs->gpr[rb];
goto arith_done;
#endif
case 234: /* addme */
- add_with_carry(regs, rd, regs->gpr[ra], -1L,
+ add_with_carry(regs, op, rd, regs->gpr[ra], -1L,
regs->xer & XER_CA);
goto arith_done;
case 235: /* mullw */
- regs->gpr[rd] = (unsigned int) regs->gpr[ra] *
- (unsigned int) regs->gpr[rb];
+ op->val = (long)(int) regs->gpr[ra] *
+ (int) regs->gpr[rb];
+
goto arith_done;
case 266: /* add */
- regs->gpr[rd] = regs->gpr[ra] + regs->gpr[rb];
+ op->val = regs->gpr[ra] + regs->gpr[rb];
goto arith_done;
#ifdef __powerpc64__
case 457: /* divdu */
- regs->gpr[rd] = regs->gpr[ra] / regs->gpr[rb];
+ op->val = regs->gpr[ra] / regs->gpr[rb];
goto arith_done;
#endif
case 459: /* divwu */
- regs->gpr[rd] = (unsigned int) regs->gpr[ra] /
+ op->val = (unsigned int) regs->gpr[ra] /
(unsigned int) regs->gpr[rb];
goto arith_done;
#ifdef __powerpc64__
case 489: /* divd */
- regs->gpr[rd] = (long int) regs->gpr[ra] /
+ op->val = (long int) regs->gpr[ra] /
(long int) regs->gpr[rb];
goto arith_done;
#endif
case 491: /* divw */
- regs->gpr[rd] = (int) regs->gpr[ra] /
+ op->val = (int) regs->gpr[ra] /
(int) regs->gpr[rb];
goto arith_done;
@@ -1157,57 +1684,81 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
* Logical instructions
*/
case 26: /* cntlzw */
- asm("cntlzw %0,%1" : "=r" (regs->gpr[ra]) :
- "r" (regs->gpr[rd]));
+ val = (unsigned int) regs->gpr[rd];
+ op->val = ( val ? __builtin_clz(val) : 32 );
goto logical_done;
#ifdef __powerpc64__
case 58: /* cntlzd */
- asm("cntlzd %0,%1" : "=r" (regs->gpr[ra]) :
- "r" (regs->gpr[rd]));
+ val = regs->gpr[rd];
+ op->val = ( val ? __builtin_clzl(val) : 64 );
goto logical_done;
#endif
case 28: /* and */
- regs->gpr[ra] = regs->gpr[rd] & regs->gpr[rb];
+ op->val = regs->gpr[rd] & regs->gpr[rb];
goto logical_done;
case 60: /* andc */
- regs->gpr[ra] = regs->gpr[rd] & ~regs->gpr[rb];
+ op->val = regs->gpr[rd] & ~regs->gpr[rb];
goto logical_done;
+ case 122: /* popcntb */
+ do_popcnt(regs, op, regs->gpr[rd], 8);
+ goto logical_done_nocc;
+
case 124: /* nor */
- regs->gpr[ra] = ~(regs->gpr[rd] | regs->gpr[rb]);
+ op->val = ~(regs->gpr[rd] | regs->gpr[rb]);
goto logical_done;
+ case 154: /* prtyw */
+ do_prty(regs, op, regs->gpr[rd], 32);
+ goto logical_done_nocc;
+
+ case 186: /* prtyd */
+ do_prty(regs, op, regs->gpr[rd], 64);
+ goto logical_done_nocc;
+#ifdef CONFIG_PPC64
+ case 252: /* bpermd */
+ do_bpermd(regs, op, regs->gpr[rd], regs->gpr[rb]);
+ goto logical_done_nocc;
+#endif
case 284: /* xor */
- regs->gpr[ra] = ~(regs->gpr[rd] ^ regs->gpr[rb]);
+ op->val = ~(regs->gpr[rd] ^ regs->gpr[rb]);
goto logical_done;
case 316: /* xor */
- regs->gpr[ra] = regs->gpr[rd] ^ regs->gpr[rb];
+ op->val = regs->gpr[rd] ^ regs->gpr[rb];
goto logical_done;
+ case 378: /* popcntw */
+ do_popcnt(regs, op, regs->gpr[rd], 32);
+ goto logical_done_nocc;
+
case 412: /* orc */
- regs->gpr[ra] = regs->gpr[rd] | ~regs->gpr[rb];
+ op->val = regs->gpr[rd] | ~regs->gpr[rb];
goto logical_done;
case 444: /* or */
- regs->gpr[ra] = regs->gpr[rd] | regs->gpr[rb];
+ op->val = regs->gpr[rd] | regs->gpr[rb];
goto logical_done;
case 476: /* nand */
- regs->gpr[ra] = ~(regs->gpr[rd] & regs->gpr[rb]);
+ op->val = ~(regs->gpr[rd] & regs->gpr[rb]);
goto logical_done;
-
+#ifdef CONFIG_PPC64
+ case 506: /* popcntd */
+ do_popcnt(regs, op, regs->gpr[rd], 64);
+ goto logical_done_nocc;
+#endif
case 922: /* extsh */
- regs->gpr[ra] = (signed short) regs->gpr[rd];
+ op->val = (signed short) regs->gpr[rd];
goto logical_done;
case 954: /* extsb */
- regs->gpr[ra] = (signed char) regs->gpr[rd];
+ op->val = (signed char) regs->gpr[rd];
goto logical_done;
#ifdef __powerpc64__
case 986: /* extsw */
- regs->gpr[ra] = (signed int) regs->gpr[rd];
+ op->val = (signed int) regs->gpr[rd];
goto logical_done;
#endif
@@ -1217,75 +1768,83 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
case 24: /* slw */
sh = regs->gpr[rb] & 0x3f;
if (sh < 32)
- regs->gpr[ra] = (regs->gpr[rd] << sh) & 0xffffffffUL;
+ op->val = (regs->gpr[rd] << sh) & 0xffffffffUL;
else
- regs->gpr[ra] = 0;
+ op->val = 0;
goto logical_done;
case 536: /* srw */
sh = regs->gpr[rb] & 0x3f;
if (sh < 32)
- regs->gpr[ra] = (regs->gpr[rd] & 0xffffffffUL) >> sh;
+ op->val = (regs->gpr[rd] & 0xffffffffUL) >> sh;
else
- regs->gpr[ra] = 0;
+ op->val = 0;
goto logical_done;
case 792: /* sraw */
+ op->type = COMPUTE + SETREG + SETXER;
sh = regs->gpr[rb] & 0x3f;
ival = (signed int) regs->gpr[rd];
- regs->gpr[ra] = ival >> (sh < 32 ? sh : 31);
+ op->val = ival >> (sh < 32 ? sh : 31);
+ op->xerval = regs->xer;
if (ival < 0 && (sh >= 32 || (ival & ((1ul << sh) - 1)) != 0))
- regs->xer |= XER_CA;
+ op->xerval |= XER_CA;
else
- regs->xer &= ~XER_CA;
+ op->xerval &= ~XER_CA;
goto logical_done;
case 824: /* srawi */
+ op->type = COMPUTE + SETREG + SETXER;
sh = rb;
ival = (signed int) regs->gpr[rd];
- regs->gpr[ra] = ival >> sh;
+ op->val = ival >> sh;
+ op->xerval = regs->xer;
if (ival < 0 && (ival & ((1ul << sh) - 1)) != 0)
- regs->xer |= XER_CA;
+ op->xerval |= XER_CA;
else
- regs->xer &= ~XER_CA;
+ op->xerval &= ~XER_CA;
goto logical_done;
#ifdef __powerpc64__
case 27: /* sld */
sh = regs->gpr[rb] & 0x7f;
if (sh < 64)
- regs->gpr[ra] = regs->gpr[rd] << sh;
+ op->val = regs->gpr[rd] << sh;
else
- regs->gpr[ra] = 0;
+ op->val = 0;
goto logical_done;
case 539: /* srd */
sh = regs->gpr[rb] & 0x7f;
if (sh < 64)
- regs->gpr[ra] = regs->gpr[rd] >> sh;
+ op->val = regs->gpr[rd] >> sh;
else
- regs->gpr[ra] = 0;
+ op->val = 0;
goto logical_done;
case 794: /* srad */
+ op->type = COMPUTE + SETREG + SETXER;
sh = regs->gpr[rb] & 0x7f;
ival = (signed long int) regs->gpr[rd];
- regs->gpr[ra] = ival >> (sh < 64 ? sh : 63);
+ op->val = ival >> (sh < 64 ? sh : 63);
+ op->xerval = regs->xer;
if (ival < 0 && (sh >= 64 || (ival & ((1ul << sh) - 1)) != 0))
- regs->xer |= XER_CA;
+ op->xerval |= XER_CA;
else
- regs->xer &= ~XER_CA;
+ op->xerval &= ~XER_CA;
goto logical_done;
case 826: /* sradi with sh_5 = 0 */
case 827: /* sradi with sh_5 = 1 */
+ op->type = COMPUTE + SETREG + SETXER;
sh = rb | ((instr & 2) << 4);
ival = (signed long int) regs->gpr[rd];
- regs->gpr[ra] = ival >> sh;
+ op->val = ival >> sh;
+ op->xerval = regs->xer;
if (ival < 0 && (ival & ((1ul << sh) - 1)) != 0)
- regs->xer |= XER_CA;
+ op->xerval |= XER_CA;
else
- regs->xer &= ~XER_CA;
+ op->xerval &= ~XER_CA;
goto logical_done;
#endif /* __powerpc64__ */
@@ -1318,18 +1877,24 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
op->type = MKOP(CACHEOP, ICBI, 0);
op->ea = xform_ea(instr, regs);
return 0;
+
+ case 1014: /* dcbz */
+ op->type = MKOP(CACHEOP, DCBZ, 0);
+ op->ea = xform_ea(instr, regs);
+ return 0;
}
break;
}
- /*
- * Loads and stores.
- */
+/*
+ * Loads and stores.
+ */
op->type = UNKNOWN;
op->update_reg = ra;
op->reg = rd;
op->val = regs->gpr[rd];
u = (instr >> 20) & UPDATE;
+ op->vsx_flags = 0;
switch (opcode) {
case 31:
@@ -1353,9 +1918,30 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
op->type = MKOP(STCX, 0, 8);
break;
- case 21: /* ldx */
- case 53: /* ldux */
- op->type = MKOP(LOAD, u, 8);
+ case 52: /* lbarx */
+ op->type = MKOP(LARX, 0, 1);
+ break;
+
+ case 694: /* stbcx. */
+ op->type = MKOP(STCX, 0, 1);
+ break;
+
+ case 116: /* lharx */
+ op->type = MKOP(LARX, 0, 2);
+ break;
+
+ case 726: /* sthcx. */
+ op->type = MKOP(STCX, 0, 2);
+ break;
+
+ case 276: /* lqarx */
+ if (!((rd & 1) || rd == ra || rd == rb))
+ op->type = MKOP(LARX, 0, 16);
+ break;
+
+ case 182: /* stqcx. */
+ if (!(rd & 1))
+ op->type = MKOP(STCX, 0, 16);
break;
#endif
@@ -1370,22 +1956,58 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
break;
#ifdef CONFIG_ALTIVEC
+ /*
+ * Note: for the load/store vector element instructions,
+ * bits of the EA say which field of the VMX register to use.
+ */
+ case 7: /* lvebx */
+ op->type = MKOP(LOAD_VMX, 0, 1);
+ op->element_size = 1;
+ break;
+
+ case 39: /* lvehx */
+ op->type = MKOP(LOAD_VMX, 0, 2);
+ op->element_size = 2;
+ break;
+
+ case 71: /* lvewx */
+ op->type = MKOP(LOAD_VMX, 0, 4);
+ op->element_size = 4;
+ break;
+
case 103: /* lvx */
case 359: /* lvxl */
- if (!(regs->msr & MSR_VEC))
- goto vecunavail;
op->type = MKOP(LOAD_VMX, 0, 16);
+ op->element_size = 16;
+ break;
+
+ case 135: /* stvebx */
+ op->type = MKOP(STORE_VMX, 0, 1);
+ op->element_size = 1;
+ break;
+
+ case 167: /* stvehx */
+ op->type = MKOP(STORE_VMX, 0, 2);
+ op->element_size = 2;
+ break;
+
+ case 199: /* stvewx */
+ op->type = MKOP(STORE_VMX, 0, 4);
+ op->element_size = 4;
break;
case 231: /* stvx */
case 487: /* stvxl */
- if (!(regs->msr & MSR_VEC))
- goto vecunavail;
op->type = MKOP(STORE_VMX, 0, 16);
break;
#endif /* CONFIG_ALTIVEC */
#ifdef __powerpc64__
+ case 21: /* ldx */
+ case 53: /* ldux */
+ op->type = MKOP(LOAD, u, 8);
+ break;
+
case 149: /* stdx */
case 181: /* stdux */
op->type = MKOP(STORE, u, 8);
@@ -1442,41 +2064,52 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
if (rb == 0)
rb = 32; /* # bytes to load */
op->type = MKOP(LOAD_MULTI, 0, rb);
- op->ea = 0;
- if (ra)
- op->ea = truncate_if_32bit(regs->msr,
- regs->gpr[ra]);
+ op->ea = ra ? regs->gpr[ra] : 0;
break;
#ifdef CONFIG_PPC_FPU
case 535: /* lfsx */
case 567: /* lfsux */
- if (!(regs->msr & MSR_FP))
- goto fpunavail;
- op->type = MKOP(LOAD_FP, u, 4);
+ op->type = MKOP(LOAD_FP, u | FPCONV, 4);
break;
case 599: /* lfdx */
case 631: /* lfdux */
- if (!(regs->msr & MSR_FP))
- goto fpunavail;
op->type = MKOP(LOAD_FP, u, 8);
break;
case 663: /* stfsx */
case 695: /* stfsux */
- if (!(regs->msr & MSR_FP))
- goto fpunavail;
- op->type = MKOP(STORE_FP, u, 4);
+ op->type = MKOP(STORE_FP, u | FPCONV, 4);
break;
case 727: /* stfdx */
case 759: /* stfdux */
- if (!(regs->msr & MSR_FP))
- goto fpunavail;
op->type = MKOP(STORE_FP, u, 8);
break;
-#endif
+
+#ifdef __powerpc64__
+ case 791: /* lfdpx */
+ op->type = MKOP(LOAD_FP, 0, 16);
+ break;
+
+ case 855: /* lfiwax */
+ op->type = MKOP(LOAD_FP, SIGNEXT, 4);
+ break;
+
+ case 887: /* lfiwzx */
+ op->type = MKOP(LOAD_FP, 0, 4);
+ break;
+
+ case 919: /* stfdpx */
+ op->type = MKOP(STORE_FP, 0, 16);
+ break;
+
+ case 983: /* stfiwx */
+ op->type = MKOP(STORE_FP, 0, 4);
+ break;
+#endif /* __powerpc64 */
+#endif /* CONFIG_PPC_FPU */
#ifdef __powerpc64__
case 660: /* stdbrx */
@@ -1494,14 +2127,11 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
op->val = byterev_4(regs->gpr[rd]);
break;
- case 725:
+ case 725: /* stswi */
if (rb == 0)
rb = 32; /* # bytes to store */
op->type = MKOP(STORE_MULTI, 0, rb);
- op->ea = 0;
- if (ra)
- op->ea = truncate_if_32bit(regs->msr,
- regs->gpr[ra]);
+ op->ea = ra ? regs->gpr[ra] : 0;
break;
case 790: /* lhbrx */
@@ -1514,20 +2144,184 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
break;
#ifdef CONFIG_VSX
+ case 12: /* lxsiwzx */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(LOAD_VSX, 0, 4);
+ op->element_size = 8;
+ break;
+
+ case 76: /* lxsiwax */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(LOAD_VSX, SIGNEXT, 4);
+ op->element_size = 8;
+ break;
+
+ case 140: /* stxsiwx */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(STORE_VSX, 0, 4);
+ op->element_size = 8;
+ break;
+
+ case 268: /* lxvx */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(LOAD_VSX, 0, 16);
+ op->element_size = 16;
+ op->vsx_flags = VSX_CHECK_VEC;
+ break;
+
+ case 269: /* lxvl */
+ case 301: { /* lxvll */
+ int nb;
+ op->reg = rd | ((instr & 1) << 5);
+ op->ea = ra ? regs->gpr[ra] : 0;
+ nb = regs->gpr[rb] & 0xff;
+ if (nb > 16)
+ nb = 16;
+ op->type = MKOP(LOAD_VSX, 0, nb);
+ op->element_size = 16;
+ op->vsx_flags = ((instr & 0x20) ? VSX_LDLEFT : 0) |
+ VSX_CHECK_VEC;
+ break;
+ }
+ case 332: /* lxvdsx */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(LOAD_VSX, 0, 8);
+ op->element_size = 8;
+ op->vsx_flags = VSX_SPLAT;
+ break;
+
+ case 364: /* lxvwsx */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(LOAD_VSX, 0, 4);
+ op->element_size = 4;
+ op->vsx_flags = VSX_SPLAT | VSX_CHECK_VEC;
+ break;
+
+ case 396: /* stxvx */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(STORE_VSX, 0, 16);
+ op->element_size = 16;
+ op->vsx_flags = VSX_CHECK_VEC;
+ break;
+
+ case 397: /* stxvl */
+ case 429: { /* stxvll */
+ int nb;
+ op->reg = rd | ((instr & 1) << 5);
+ op->ea = ra ? regs->gpr[ra] : 0;
+ nb = regs->gpr[rb] & 0xff;
+ if (nb > 16)
+ nb = 16;
+ op->type = MKOP(STORE_VSX, 0, nb);
+ op->element_size = 16;
+ op->vsx_flags = ((instr & 0x20) ? VSX_LDLEFT : 0) |
+ VSX_CHECK_VEC;
+ break;
+ }
+ case 524: /* lxsspx */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(LOAD_VSX, 0, 4);
+ op->element_size = 8;
+ op->vsx_flags = VSX_FPCONV;
+ break;
+
+ case 588: /* lxsdx */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(LOAD_VSX, 0, 8);
+ op->element_size = 8;
+ break;
+
+ case 652: /* stxsspx */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(STORE_VSX, 0, 4);
+ op->element_size = 8;
+ op->vsx_flags = VSX_FPCONV;
+ break;
+
+ case 716: /* stxsdx */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(STORE_VSX, 0, 8);
+ op->element_size = 8;
+ break;
+
+ case 780: /* lxvw4x */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(LOAD_VSX, 0, 16);
+ op->element_size = 4;
+ break;
+
+ case 781: /* lxsibzx */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(LOAD_VSX, 0, 1);
+ op->element_size = 8;
+ op->vsx_flags = VSX_CHECK_VEC;
+ break;
+
+ case 812: /* lxvh8x */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(LOAD_VSX, 0, 16);
+ op->element_size = 2;
+ op->vsx_flags = VSX_CHECK_VEC;
+ break;
+
+ case 813: /* lxsihzx */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(LOAD_VSX, 0, 2);
+ op->element_size = 8;
+ op->vsx_flags = VSX_CHECK_VEC;
+ break;
+
case 844: /* lxvd2x */
- case 876: /* lxvd2ux */
- if (!(regs->msr & MSR_VSX))
- goto vsxunavail;
op->reg = rd | ((instr & 1) << 5);
- op->type = MKOP(LOAD_VSX, u, 16);
+ op->type = MKOP(LOAD_VSX, 0, 16);
+ op->element_size = 8;
+ break;
+
+ case 876: /* lxvb16x */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(LOAD_VSX, 0, 16);
+ op->element_size = 1;
+ op->vsx_flags = VSX_CHECK_VEC;
+ break;
+
+ case 908: /* stxvw4x */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(STORE_VSX, 0, 16);
+ op->element_size = 4;
+ break;
+
+ case 909: /* stxsibx */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(STORE_VSX, 0, 1);
+ op->element_size = 8;
+ op->vsx_flags = VSX_CHECK_VEC;
+ break;
+
+ case 940: /* stxvh8x */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(STORE_VSX, 0, 16);
+ op->element_size = 2;
+ op->vsx_flags = VSX_CHECK_VEC;
+ break;
+
+ case 941: /* stxsihx */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(STORE_VSX, 0, 2);
+ op->element_size = 8;
+ op->vsx_flags = VSX_CHECK_VEC;
break;
case 972: /* stxvd2x */
- case 1004: /* stxvd2ux */
- if (!(regs->msr & MSR_VSX))
- goto vsxunavail;
op->reg = rd | ((instr & 1) << 5);
- op->type = MKOP(STORE_VSX, u, 16);
+ op->type = MKOP(STORE_VSX, 0, 16);
+ op->element_size = 8;
+ break;
+
+ case 1004: /* stxvb16x */
+ op->reg = rd | ((instr & 1) << 5);
+ op->type = MKOP(STORE_VSX, 0, 16);
+ op->element_size = 1;
+ op->vsx_flags = VSX_CHECK_VEC;
break;
#endif /* CONFIG_VSX */
@@ -1591,38 +2385,63 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
#ifdef CONFIG_PPC_FPU
case 48: /* lfs */
case 49: /* lfsu */
- if (!(regs->msr & MSR_FP))
- goto fpunavail;
- op->type = MKOP(LOAD_FP, u, 4);
+ op->type = MKOP(LOAD_FP, u | FPCONV, 4);
op->ea = dform_ea(instr, regs);
break;
case 50: /* lfd */
case 51: /* lfdu */
- if (!(regs->msr & MSR_FP))
- goto fpunavail;
op->type = MKOP(LOAD_FP, u, 8);
op->ea = dform_ea(instr, regs);
break;
case 52: /* stfs */
case 53: /* stfsu */
- if (!(regs->msr & MSR_FP))
- goto fpunavail;
- op->type = MKOP(STORE_FP, u, 4);
+ op->type = MKOP(STORE_FP, u | FPCONV, 4);
op->ea = dform_ea(instr, regs);
break;
case 54: /* stfd */
case 55: /* stfdu */
- if (!(regs->msr & MSR_FP))
- goto fpunavail;
op->type = MKOP(STORE_FP, u, 8);
op->ea = dform_ea(instr, regs);
break;
#endif
#ifdef __powerpc64__
+ case 56: /* lq */
+ if (!((rd & 1) || (rd == ra)))
+ op->type = MKOP(LOAD, 0, 16);
+ op->ea = dqform_ea(instr, regs);
+ break;
+#endif
+
+#ifdef CONFIG_VSX
+ case 57: /* lfdp, lxsd, lxssp */
+ op->ea = dsform_ea(instr, regs);
+ switch (instr & 3) {
+ case 0: /* lfdp */
+ if (rd & 1)
+ break; /* reg must be even */
+ op->type = MKOP(LOAD_FP, 0, 16);
+ break;
+ case 2: /* lxsd */
+ op->reg = rd + 32;
+ op->type = MKOP(LOAD_VSX, 0, 8);
+ op->element_size = 8;
+ op->vsx_flags = VSX_CHECK_VEC;
+ break;
+ case 3: /* lxssp */
+ op->reg = rd + 32;
+ op->type = MKOP(LOAD_VSX, 0, 4);
+ op->element_size = 8;
+ op->vsx_flags = VSX_FPCONV | VSX_CHECK_VEC;
+ break;
+ }
+ break;
+#endif /* CONFIG_VSX */
+
+#ifdef __powerpc64__
case 58: /* ld[u], lwa */
op->ea = dsform_ea(instr, regs);
switch (instr & 3) {
@@ -1637,7 +2456,57 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
break;
}
break;
+#endif
+#ifdef CONFIG_VSX
+ case 61: /* stfdp, lxv, stxsd, stxssp, stxv */
+ switch (instr & 7) {
+ case 0: /* stfdp with LSB of DS field = 0 */
+ case 4: /* stfdp with LSB of DS field = 1 */
+ op->ea = dsform_ea(instr, regs);
+ op->type = MKOP(STORE_FP, 0, 16);
+ break;
+
+ case 1: /* lxv */
+ op->ea = dqform_ea(instr, regs);
+ if (instr & 8)
+ op->reg = rd + 32;
+ op->type = MKOP(LOAD_VSX, 0, 16);
+ op->element_size = 16;
+ op->vsx_flags = VSX_CHECK_VEC;
+ break;
+
+ case 2: /* stxsd with LSB of DS field = 0 */
+ case 6: /* stxsd with LSB of DS field = 1 */
+ op->ea = dsform_ea(instr, regs);
+ op->reg = rd + 32;
+ op->type = MKOP(STORE_VSX, 0, 8);
+ op->element_size = 8;
+ op->vsx_flags = VSX_CHECK_VEC;
+ break;
+
+ case 3: /* stxssp with LSB of DS field = 0 */
+ case 7: /* stxssp with LSB of DS field = 1 */
+ op->ea = dsform_ea(instr, regs);
+ op->reg = rd + 32;
+ op->type = MKOP(STORE_VSX, 0, 4);
+ op->element_size = 8;
+ op->vsx_flags = VSX_FPCONV | VSX_CHECK_VEC;
+ break;
+
+ case 5: /* stxv */
+ op->ea = dqform_ea(instr, regs);
+ if (instr & 8)
+ op->reg = rd + 32;
+ op->type = MKOP(STORE_VSX, 0, 16);
+ op->element_size = 16;
+ op->vsx_flags = VSX_CHECK_VEC;
+ break;
+ }
+ break;
+#endif /* CONFIG_VSX */
+
+#ifdef __powerpc64__
case 62: /* std[u] */
op->ea = dsform_ea(instr, regs);
switch (instr & 3) {
@@ -1647,6 +2516,10 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
case 1: /* stdu */
op->type = MKOP(STORE, UPDATE, 8);
break;
+ case 2: /* stq */
+ if (!(rd & 1))
+ op->type = MKOP(STORE, 0, 16);
+ break;
}
break;
#endif /* __powerpc64__ */
@@ -1656,15 +2529,18 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
logical_done:
if (instr & 1)
- set_cr0(regs, ra);
- goto instr_done;
+ set_cr0(regs, op);
+ logical_done_nocc:
+ op->reg = ra;
+ op->type |= SETREG;
+ return 1;
arith_done:
if (instr & 1)
- set_cr0(regs, rd);
-
- instr_done:
- regs->nip = truncate_if_32bit(regs->msr, regs->nip + 4);
+ set_cr0(regs, op);
+ compute_done:
+ op->reg = rd;
+ op->type |= SETREG;
return 1;
priv:
@@ -1676,24 +2552,6 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
op->type = INTERRUPT | 0x700;
op->val = SRR1_PROGTRAP;
return 0;
-
-#ifdef CONFIG_PPC_FPU
- fpunavail:
- op->type = INTERRUPT | 0x800;
- return 0;
-#endif
-
-#ifdef CONFIG_ALTIVEC
- vecunavail:
- op->type = INTERRUPT | 0xf20;
- return 0;
-#endif
-
-#ifdef CONFIG_VSX
- vsxunavail:
- op->type = INTERRUPT | 0xf40;
- return 0;
-#endif
}
EXPORT_SYMBOL_GPL(analyse_instr);
NOKPROBE_SYMBOL(analyse_instr);
@@ -1756,190 +2614,412 @@ static nokprobe_inline void do_byterev(unsigned long *valp, int size)
}
/*
- * Emulate instructions that cause a transfer of control,
- * loads and stores, and a few other instructions.
- * Returns 1 if the step was emulated, 0 if not,
- * or -1 if the instruction is one that should not be stepped,
- * such as an rfid, or a mtmsrd that would clear MSR_RI.
+ * Emulate an instruction that can be executed just by updating
+ * fields in *regs.
*/
-int emulate_step(struct pt_regs *regs, unsigned int instr)
+void emulate_update_regs(struct pt_regs *regs, struct instruction_op *op)
{
- struct instruction_op op;
- int r, err, size;
- unsigned long val;
- unsigned int cr;
- int i, rd, nb;
+ unsigned long next_pc;
+
+ next_pc = truncate_if_32bit(regs->msr, regs->nip + 4);
+ switch (op->type & INSTR_TYPE_MASK) {
+ case COMPUTE:
+ if (op->type & SETREG)
+ regs->gpr[op->reg] = op->val;
+ if (op->type & SETCC)
+ regs->ccr = op->ccval;
+ if (op->type & SETXER)
+ regs->xer = op->xerval;
+ break;
- r = analyse_instr(&op, regs, instr);
- if (r != 0)
- return r;
+ case BRANCH:
+ if (op->type & SETLK)
+ regs->link = next_pc;
+ if (op->type & BRTAKEN)
+ next_pc = op->val;
+ if (op->type & DECCTR)
+ --regs->ctr;
+ break;
- err = 0;
- size = GETSIZE(op.type);
- switch (op.type & INSTR_TYPE_MASK) {
- case CACHEOP:
- if (!address_ok(regs, op.ea, 8))
- return 0;
- switch (op.type & CACHEOP_MASK) {
- case DCBST:
- __cacheop_user_asmx(op.ea, err, "dcbst");
+ case BARRIER:
+ switch (op->type & BARRIER_MASK) {
+ case BARRIER_SYNC:
+ mb();
break;
- case DCBF:
- __cacheop_user_asmx(op.ea, err, "dcbf");
+ case BARRIER_ISYNC:
+ isync();
break;
- case DCBTST:
- if (op.reg == 0)
- prefetchw((void *) op.ea);
+ case BARRIER_EIEIO:
+ eieio();
break;
- case DCBT:
- if (op.reg == 0)
- prefetch((void *) op.ea);
+ case BARRIER_LWSYNC:
+ asm volatile("lwsync" : : : "memory");
break;
- case ICBI:
- __cacheop_user_asmx(op.ea, err, "icbi");
+ case BARRIER_PTESYNC:
+ asm volatile("ptesync" : : : "memory");
break;
}
- if (err)
- return 0;
- goto instr_done;
+ break;
+
+ case MFSPR:
+ switch (op->spr) {
+ case SPRN_XER:
+ regs->gpr[op->reg] = regs->xer & 0xffffffffUL;
+ break;
+ case SPRN_LR:
+ regs->gpr[op->reg] = regs->link;
+ break;
+ case SPRN_CTR:
+ regs->gpr[op->reg] = regs->ctr;
+ break;
+ default:
+ WARN_ON_ONCE(1);
+ }
+ break;
+
+ case MTSPR:
+ switch (op->spr) {
+ case SPRN_XER:
+ regs->xer = op->val & 0xffffffffUL;
+ break;
+ case SPRN_LR:
+ regs->link = op->val;
+ break;
+ case SPRN_CTR:
+ regs->ctr = op->val;
+ break;
+ default:
+ WARN_ON_ONCE(1);
+ }
+ break;
+ default:
+ WARN_ON_ONCE(1);
+ }
+ regs->nip = next_pc;
+}
+
+/*
+ * Emulate a previously-analysed load or store instruction.
+ * Return values are:
+ * 0 = instruction emulated successfully
+ * -EFAULT = address out of range or access faulted (regs->dar
+ * contains the faulting address)
+ * -EACCES = misaligned access, instruction requires alignment
+ * -EINVAL = unknown operation in *op
+ */
+int emulate_loadstore(struct pt_regs *regs, struct instruction_op *op)
+{
+ int err, size, type;
+ int i, rd, nb;
+ unsigned int cr;
+ unsigned long val;
+ unsigned long ea;
+ bool cross_endian;
+
+ err = 0;
+ size = GETSIZE(op->type);
+ type = op->type & INSTR_TYPE_MASK;
+ cross_endian = (regs->msr & MSR_LE) != (MSR_KERNEL & MSR_LE);
+ ea = truncate_if_32bit(regs->msr, op->ea);
+
+ switch (type) {
case LARX:
- if (op.ea & (size - 1))
- break; /* can't handle misaligned */
- if (!address_ok(regs, op.ea, size))
- return 0;
+ if (ea & (size - 1))
+ return -EACCES; /* can't handle misaligned */
+ if (!address_ok(regs, ea, size))
+ return -EFAULT;
err = 0;
+ val = 0;
switch (size) {
+#ifdef __powerpc64__
+ case 1:
+ __get_user_asmx(val, ea, err, "lbarx");
+ break;
+ case 2:
+ __get_user_asmx(val, ea, err, "lharx");
+ break;
+#endif
case 4:
- __get_user_asmx(val, op.ea, err, "lwarx");
+ __get_user_asmx(val, ea, err, "lwarx");
break;
#ifdef __powerpc64__
case 8:
- __get_user_asmx(val, op.ea, err, "ldarx");
+ __get_user_asmx(val, ea, err, "ldarx");
+ break;
+ case 16:
+ err = do_lqarx(ea, &regs->gpr[op->reg]);
break;
#endif
default:
- return 0;
+ return -EINVAL;
}
- if (!err)
- regs->gpr[op.reg] = val;
- goto ldst_done;
+ if (err) {
+ regs->dar = ea;
+ break;
+ }
+ if (size < 16)
+ regs->gpr[op->reg] = val;
+ break;
case STCX:
- if (op.ea & (size - 1))
- break; /* can't handle misaligned */
- if (!address_ok(regs, op.ea, size))
- return 0;
+ if (ea & (size - 1))
+ return -EACCES; /* can't handle misaligned */
+ if (!address_ok(regs, ea, size))
+ return -EFAULT;
err = 0;
switch (size) {
+#ifdef __powerpc64__
+ case 1:
+ __put_user_asmx(op->val, ea, err, "stbcx.", cr);
+ break;
+ case 2:
+ __put_user_asmx(op->val, ea, err, "stbcx.", cr);
+ break;
+#endif
case 4:
- __put_user_asmx(op.val, op.ea, err, "stwcx.", cr);
+ __put_user_asmx(op->val, ea, err, "stwcx.", cr);
break;
#ifdef __powerpc64__
case 8:
- __put_user_asmx(op.val, op.ea, err, "stdcx.", cr);
+ __put_user_asmx(op->val, ea, err, "stdcx.", cr);
+ break;
+ case 16:
+ err = do_stqcx(ea, regs->gpr[op->reg],
+ regs->gpr[op->reg + 1], &cr);
break;
#endif
default:
- return 0;
+ return -EINVAL;
}
if (!err)
regs->ccr = (regs->ccr & 0x0fffffff) |
(cr & 0xe0000000) |
((regs->xer >> 3) & 0x10000000);
- goto ldst_done;
+ else
+ regs->dar = ea;
+ break;
case LOAD:
- err = read_mem(&regs->gpr[op.reg], op.ea, size, regs);
+#ifdef __powerpc64__
+ if (size == 16) {
+ err = emulate_lq(regs, ea, op->reg, cross_endian);
+ break;
+ }
+#endif
+ err = read_mem(&regs->gpr[op->reg], ea, size, regs);
if (!err) {
- if (op.type & SIGNEXT)
- do_signext(&regs->gpr[op.reg], size);
- if (op.type & BYTEREV)
- do_byterev(&regs->gpr[op.reg], size);
+ if (op->type & SIGNEXT)
+ do_signext(&regs->gpr[op->reg], size);
+ if ((op->type & BYTEREV) == (cross_endian ? 0 : BYTEREV))
+ do_byterev(&regs->gpr[op->reg], size);
}
- goto ldst_done;
+ break;
#ifdef CONFIG_PPC_FPU
case LOAD_FP:
- if (size == 4)
- err = do_fp_load(op.reg, do_lfs, op.ea, size, regs);
- else
- err = do_fp_load(op.reg, do_lfd, op.ea, size, regs);
- goto ldst_done;
+ /*
+ * If the instruction is in userspace, we can emulate it even
+ * if the VMX state is not live, because we have the state
+ * stored in the thread_struct. If the instruction is in
+ * the kernel, we must not touch the state in the thread_struct.
+ */
+ if (!(regs->msr & MSR_PR) && !(regs->msr & MSR_FP))
+ return 0;
+ err = do_fp_load(op, ea, regs, cross_endian);
+ break;
#endif
#ifdef CONFIG_ALTIVEC
case LOAD_VMX:
- err = do_vec_load(op.reg, do_lvx, op.ea & ~0xfUL, regs);
- goto ldst_done;
+ if (!(regs->msr & MSR_PR) && !(regs->msr & MSR_VEC))
+ return 0;
+ err = do_vec_load(op->reg, ea, size, regs, cross_endian);
+ break;
#endif
#ifdef CONFIG_VSX
- case LOAD_VSX:
- err = do_vsx_load(op.reg, do_lxvd2x, op.ea, regs);
- goto ldst_done;
+ case LOAD_VSX: {
+ unsigned long msrbit = MSR_VSX;
+
+ /*
+ * Some VSX instructions check the MSR_VEC bit rather than MSR_VSX
+ * when the target of the instruction is a vector register.
+ */
+ if (op->reg >= 32 && (op->vsx_flags & VSX_CHECK_VEC))
+ msrbit = MSR_VEC;
+ if (!(regs->msr & MSR_PR) && !(regs->msr & msrbit))
+ return 0;
+ err = do_vsx_load(op, ea, regs, cross_endian);
+ break;
+ }
#endif
case LOAD_MULTI:
- if (regs->msr & MSR_LE)
- return 0;
- rd = op.reg;
+ if (!address_ok(regs, ea, size))
+ return -EFAULT;
+ rd = op->reg;
for (i = 0; i < size; i += 4) {
+ unsigned int v32 = 0;
+
nb = size - i;
if (nb > 4)
nb = 4;
- err = read_mem(&regs->gpr[rd], op.ea, nb, regs);
+ err = copy_mem_in((u8 *) &v32, ea, nb, regs);
if (err)
- return 0;
- if (nb < 4) /* left-justify last bytes */
- regs->gpr[rd] <<= 32 - 8 * nb;
- op.ea += 4;
- ++rd;
+ break;
+ if (unlikely(cross_endian))
+ v32 = byterev_4(v32);
+ regs->gpr[rd] = v32;
+ ea += 4;
+ /* reg number wraps from 31 to 0 for lsw[ix] */
+ rd = (rd + 1) & 0x1f;
}
- goto instr_done;
+ break;
case STORE:
- if ((op.type & UPDATE) && size == sizeof(long) &&
- op.reg == 1 && op.update_reg == 1 &&
+#ifdef __powerpc64__
+ if (size == 16) {
+ err = emulate_stq(regs, ea, op->reg, cross_endian);
+ break;
+ }
+#endif
+ if ((op->type & UPDATE) && size == sizeof(long) &&
+ op->reg == 1 && op->update_reg == 1 &&
!(regs->msr & MSR_PR) &&
- op.ea >= regs->gpr[1] - STACK_INT_FRAME_SIZE) {
- err = handle_stack_update(op.ea, regs);
- goto ldst_done;
+ ea >= regs->gpr[1] - STACK_INT_FRAME_SIZE) {
+ err = handle_stack_update(ea, regs);
+ break;
}
- err = write_mem(op.val, op.ea, size, regs);
- goto ldst_done;
+ if (unlikely(cross_endian))
+ do_byterev(&op->val, size);
+ err = write_mem(op->val, ea, size, regs);
+ break;
#ifdef CONFIG_PPC_FPU
case STORE_FP:
- if (size == 4)
- err = do_fp_store(op.reg, do_stfs, op.ea, size, regs);
- else
- err = do_fp_store(op.reg, do_stfd, op.ea, size, regs);
- goto ldst_done;
+ if (!(regs->msr & MSR_PR) && !(regs->msr & MSR_FP))
+ return 0;
+ err = do_fp_store(op, ea, regs, cross_endian);
+ break;
#endif
#ifdef CONFIG_ALTIVEC
case STORE_VMX:
- err = do_vec_store(op.reg, do_stvx, op.ea & ~0xfUL, regs);
- goto ldst_done;
+ if (!(regs->msr & MSR_PR) && !(regs->msr & MSR_VEC))
+ return 0;
+ err = do_vec_store(op->reg, ea, size, regs, cross_endian);
+ break;
#endif
#ifdef CONFIG_VSX
- case STORE_VSX:
- err = do_vsx_store(op.reg, do_stxvd2x, op.ea, regs);
- goto ldst_done;
+ case STORE_VSX: {
+ unsigned long msrbit = MSR_VSX;
+
+ /*
+ * Some VSX instructions check the MSR_VEC bit rather than MSR_VSX
+ * when the target of the instruction is a vector register.
+ */
+ if (op->reg >= 32 && (op->vsx_flags & VSX_CHECK_VEC))
+ msrbit = MSR_VEC;
+ if (!(regs->msr & MSR_PR) && !(regs->msr & msrbit))
+ return 0;
+ err = do_vsx_store(op, ea, regs, cross_endian);
+ break;
+ }
#endif
case STORE_MULTI:
- if (regs->msr & MSR_LE)
- return 0;
- rd = op.reg;
+ if (!address_ok(regs, ea, size))
+ return -EFAULT;
+ rd = op->reg;
for (i = 0; i < size; i += 4) {
- val = regs->gpr[rd];
+ unsigned int v32 = regs->gpr[rd];
+
nb = size - i;
if (nb > 4)
nb = 4;
- else
- val >>= 32 - 8 * nb;
- err = write_mem(val, op.ea, nb, regs);
+ if (unlikely(cross_endian))
+ v32 = byterev_4(v32);
+ err = copy_mem_out((u8 *) &v32, ea, nb, regs);
if (err)
- return 0;
- op.ea += 4;
- ++rd;
+ break;
+ ea += 4;
+ /* reg number wraps from 31 to 0 for stsw[ix] */
+ rd = (rd + 1) & 0x1f;
+ }
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ if (err)
+ return err;
+
+ if (op->type & UPDATE)
+ regs->gpr[op->update_reg] = op->ea;
+
+ return 0;
+}
+NOKPROBE_SYMBOL(emulate_loadstore);
+
+/*
+ * Emulate instructions that cause a transfer of control,
+ * loads and stores, and a few other instructions.
+ * Returns 1 if the step was emulated, 0 if not,
+ * or -1 if the instruction is one that should not be stepped,
+ * such as an rfid, or a mtmsrd that would clear MSR_RI.
+ */
+int emulate_step(struct pt_regs *regs, unsigned int instr)
+{
+ struct instruction_op op;
+ int r, err, type;
+ unsigned long val;
+ unsigned long ea;
+
+ r = analyse_instr(&op, regs, instr);
+ if (r < 0)
+ return r;
+ if (r > 0) {
+ emulate_update_regs(regs, &op);
+ return 1;
+ }
+
+ err = 0;
+ type = op.type & INSTR_TYPE_MASK;
+
+ if (OP_IS_LOAD_STORE(type)) {
+ err = emulate_loadstore(regs, &op);
+ if (err)
+ return 0;
+ goto instr_done;
+ }
+
+ switch (type) {
+ case CACHEOP:
+ ea = truncate_if_32bit(regs->msr, op.ea);
+ if (!address_ok(regs, ea, 8))
+ return 0;
+ switch (op.type & CACHEOP_MASK) {
+ case DCBST:
+ __cacheop_user_asmx(ea, err, "dcbst");
+ break;
+ case DCBF:
+ __cacheop_user_asmx(ea, err, "dcbf");
+ break;
+ case DCBTST:
+ if (op.reg == 0)
+ prefetchw((void *) ea);
+ break;
+ case DCBT:
+ if (op.reg == 0)
+ prefetch((void *) ea);
+ break;
+ case ICBI:
+ __cacheop_user_asmx(ea, err, "icbi");
+ break;
+ case DCBZ:
+ err = emulate_dcbz(ea, regs);
+ break;
+ }
+ if (err) {
+ regs->dar = ea;
+ return 0;
}
goto instr_done;
@@ -1983,12 +3063,6 @@ int emulate_step(struct pt_regs *regs, unsigned int instr)
}
return 0;
- ldst_done:
- if (err)
- return 0;
- if (op.type & UPDATE)
- regs->gpr[op.update_reg] = op.ea;
-
instr_done:
regs->nip = truncate_if_32bit(regs->msr, regs->nip + 4);
return 1;
diff --git a/arch/powerpc/lib/string_64.S b/arch/powerpc/lib/string_64.S
index d5b4d9498c54..56aac4c22025 100644
--- a/arch/powerpc/lib/string_64.S
+++ b/arch/powerpc/lib/string_64.S
@@ -184,7 +184,7 @@ err1; std r0,8(r3)
mtctr r6
mr r8,r3
14:
-err1; dcbz r0,r3
+err1; dcbz 0,r3
add r3,r3,r9
bdnz 14b
diff --git a/arch/powerpc/lib/xor_vmx.c b/arch/powerpc/lib/xor_vmx.c
index f9de69a04e88..4df240aa5f81 100644
--- a/arch/powerpc/lib/xor_vmx.c
+++ b/arch/powerpc/lib/xor_vmx.c
@@ -29,10 +29,7 @@
#define vector __attribute__((vector_size(16)))
#endif
-#include <linux/preempt.h>
-#include <linux/export.h>
-#include <linux/sched.h>
-#include <asm/switch_to.h>
+#include "xor_vmx.h"
typedef vector signed char unative_t;
@@ -64,16 +61,13 @@ typedef vector signed char unative_t;
V1##_3 = vec_xor(V1##_3, V2##_3); \
} while (0)
-void xor_altivec_2(unsigned long bytes, unsigned long *v1_in,
- unsigned long *v2_in)
+void __xor_altivec_2(unsigned long bytes, unsigned long *v1_in,
+ unsigned long *v2_in)
{
DEFINE(v1);
DEFINE(v2);
unsigned long lines = bytes / (sizeof(unative_t)) / 4;
- preempt_disable();
- enable_kernel_altivec();
-
do {
LOAD(v1);
LOAD(v2);
@@ -83,23 +77,16 @@ void xor_altivec_2(unsigned long bytes, unsigned long *v1_in,
v1 += 4;
v2 += 4;
} while (--lines > 0);
-
- disable_kernel_altivec();
- preempt_enable();
}
-EXPORT_SYMBOL(xor_altivec_2);
-void xor_altivec_3(unsigned long bytes, unsigned long *v1_in,
- unsigned long *v2_in, unsigned long *v3_in)
+void __xor_altivec_3(unsigned long bytes, unsigned long *v1_in,
+ unsigned long *v2_in, unsigned long *v3_in)
{
DEFINE(v1);
DEFINE(v2);
DEFINE(v3);
unsigned long lines = bytes / (sizeof(unative_t)) / 4;
- preempt_disable();
- enable_kernel_altivec();
-
do {
LOAD(v1);
LOAD(v2);
@@ -112,15 +99,11 @@ void xor_altivec_3(unsigned long bytes, unsigned long *v1_in,
v2 += 4;
v3 += 4;
} while (--lines > 0);
-
- disable_kernel_altivec();
- preempt_enable();
}
-EXPORT_SYMBOL(xor_altivec_3);
-void xor_altivec_4(unsigned long bytes, unsigned long *v1_in,
- unsigned long *v2_in, unsigned long *v3_in,
- unsigned long *v4_in)
+void __xor_altivec_4(unsigned long bytes, unsigned long *v1_in,
+ unsigned long *v2_in, unsigned long *v3_in,
+ unsigned long *v4_in)
{
DEFINE(v1);
DEFINE(v2);
@@ -128,9 +111,6 @@ void xor_altivec_4(unsigned long bytes, unsigned long *v1_in,
DEFINE(v4);
unsigned long lines = bytes / (sizeof(unative_t)) / 4;
- preempt_disable();
- enable_kernel_altivec();
-
do {
LOAD(v1);
LOAD(v2);
@@ -146,15 +126,11 @@ void xor_altivec_4(unsigned long bytes, unsigned long *v1_in,
v3 += 4;
v4 += 4;
} while (--lines > 0);
-
- disable_kernel_altivec();
- preempt_enable();
}
-EXPORT_SYMBOL(xor_altivec_4);
-void xor_altivec_5(unsigned long bytes, unsigned long *v1_in,
- unsigned long *v2_in, unsigned long *v3_in,
- unsigned long *v4_in, unsigned long *v5_in)
+void __xor_altivec_5(unsigned long bytes, unsigned long *v1_in,
+ unsigned long *v2_in, unsigned long *v3_in,
+ unsigned long *v4_in, unsigned long *v5_in)
{
DEFINE(v1);
DEFINE(v2);
@@ -163,9 +139,6 @@ void xor_altivec_5(unsigned long bytes, unsigned long *v1_in,
DEFINE(v5);
unsigned long lines = bytes / (sizeof(unative_t)) / 4;
- preempt_disable();
- enable_kernel_altivec();
-
do {
LOAD(v1);
LOAD(v2);
@@ -184,8 +157,4 @@ void xor_altivec_5(unsigned long bytes, unsigned long *v1_in,
v4 += 4;
v5 += 4;
} while (--lines > 0);
-
- disable_kernel_altivec();
- preempt_enable();
}
-EXPORT_SYMBOL(xor_altivec_5);
diff --git a/arch/powerpc/lib/xor_vmx.h b/arch/powerpc/lib/xor_vmx.h
new file mode 100644
index 000000000000..4746708451ae
--- /dev/null
+++ b/arch/powerpc/lib/xor_vmx.h
@@ -0,0 +1,20 @@
+/*
+ * Simple interface to link xor_vmx.c and xor_vmx_glue.c
+ *
+ * Separating these file ensures that no altivec instructions are run
+ * outside of the enable/disable altivec block.
+ */
+
+void __xor_altivec_2(unsigned long bytes, unsigned long *v1_in,
+ unsigned long *v2_in);
+
+void __xor_altivec_3(unsigned long bytes, unsigned long *v1_in,
+ unsigned long *v2_in, unsigned long *v3_in);
+
+void __xor_altivec_4(unsigned long bytes, unsigned long *v1_in,
+ unsigned long *v2_in, unsigned long *v3_in,
+ unsigned long *v4_in);
+
+void __xor_altivec_5(unsigned long bytes, unsigned long *v1_in,
+ unsigned long *v2_in, unsigned long *v3_in,
+ unsigned long *v4_in, unsigned long *v5_in);
diff --git a/arch/powerpc/lib/xor_vmx_glue.c b/arch/powerpc/lib/xor_vmx_glue.c
new file mode 100644
index 000000000000..6521fe5e8cef
--- /dev/null
+++ b/arch/powerpc/lib/xor_vmx_glue.c
@@ -0,0 +1,62 @@
+/*
+ * Altivec XOR operations
+ *
+ * Copyright 2017 IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/preempt.h>
+#include <linux/export.h>
+#include <linux/sched.h>
+#include <asm/switch_to.h>
+#include "xor_vmx.h"
+
+void xor_altivec_2(unsigned long bytes, unsigned long *v1_in,
+ unsigned long *v2_in)
+{
+ preempt_disable();
+ enable_kernel_altivec();
+ __xor_altivec_2(bytes, v1_in, v2_in);
+ disable_kernel_altivec();
+ preempt_enable();
+}
+EXPORT_SYMBOL(xor_altivec_2);
+
+void xor_altivec_3(unsigned long bytes, unsigned long *v1_in,
+ unsigned long *v2_in, unsigned long *v3_in)
+{
+ preempt_disable();
+ enable_kernel_altivec();
+ __xor_altivec_3(bytes, v1_in, v2_in, v3_in);
+ disable_kernel_altivec();
+ preempt_enable();
+}
+EXPORT_SYMBOL(xor_altivec_3);
+
+void xor_altivec_4(unsigned long bytes, unsigned long *v1_in,
+ unsigned long *v2_in, unsigned long *v3_in,
+ unsigned long *v4_in)
+{
+ preempt_disable();
+ enable_kernel_altivec();
+ __xor_altivec_4(bytes, v1_in, v2_in, v3_in, v4_in);
+ disable_kernel_altivec();
+ preempt_enable();
+}
+EXPORT_SYMBOL(xor_altivec_4);
+
+void xor_altivec_5(unsigned long bytes, unsigned long *v1_in,
+ unsigned long *v2_in, unsigned long *v3_in,
+ unsigned long *v4_in, unsigned long *v5_in)
+{
+ preempt_disable();
+ enable_kernel_altivec();
+ __xor_altivec_5(bytes, v1_in, v2_in, v3_in, v4_in, v5_in);
+ disable_kernel_altivec();
+ preempt_enable();
+}
+EXPORT_SYMBOL(xor_altivec_5);
diff --git a/arch/powerpc/mm/8xx_mmu.c b/arch/powerpc/mm/8xx_mmu.c
index 6c5025e81236..f29212e40f40 100644
--- a/arch/powerpc/mm/8xx_mmu.c
+++ b/arch/powerpc/mm/8xx_mmu.c
@@ -22,8 +22,11 @@
extern int __map_without_ltlbs;
+static unsigned long block_mapped_ram;
+
/*
- * Return PA for this VA if it is in IMMR area, or 0
+ * Return PA for this VA if it is in an area mapped with LTLBs.
+ * Otherwise, returns 0
*/
phys_addr_t v_block_mapped(unsigned long va)
{
@@ -33,11 +36,13 @@ phys_addr_t v_block_mapped(unsigned long va)
return 0;
if (va >= VIRT_IMMR_BASE && va < VIRT_IMMR_BASE + IMMR_SIZE)
return p + va - VIRT_IMMR_BASE;
+ if (va >= PAGE_OFFSET && va < PAGE_OFFSET + block_mapped_ram)
+ return __pa(va);
return 0;
}
/*
- * Return VA for a given PA or 0 if not mapped
+ * Return VA for a given PA mapped with LTLBs or 0 if not mapped
*/
unsigned long p_block_mapped(phys_addr_t pa)
{
@@ -47,6 +52,8 @@ unsigned long p_block_mapped(phys_addr_t pa)
return 0;
if (pa >= p && pa < p + IMMR_SIZE)
return VIRT_IMMR_BASE + pa - p;
+ if (pa < block_mapped_ram)
+ return (unsigned long)__va(pa);
return 0;
}
@@ -58,7 +65,7 @@ unsigned long p_block_mapped(phys_addr_t pa)
void __init MMU_init_hw(void)
{
/* PIN up to the 3 first 8Mb after IMMR in DTLB table */
-#ifdef CONFIG_PIN_TLB
+#ifdef CONFIG_PIN_TLB_DATA
unsigned long ctr = mfspr(SPRN_MD_CTR) & 0xfe000000;
unsigned long flags = 0xf0 | MD_SPS16K | _PAGE_SHARED | _PAGE_DIRTY;
#ifdef CONFIG_PIN_TLB_IMMR
@@ -80,7 +87,7 @@ void __init MMU_init_hw(void)
#endif
}
-static void mmu_mapin_immr(void)
+static void __init mmu_mapin_immr(void)
{
unsigned long p = PHYS_IMMR_BASE;
unsigned long v = VIRT_IMMR_BASE;
@@ -88,7 +95,7 @@ static void mmu_mapin_immr(void)
int offset;
for (offset = 0; offset < IMMR_SIZE; offset += PAGE_SIZE)
- map_page(v + offset, p + offset, f);
+ map_kernel_page(v + offset, p + offset, f);
}
/* Address of instructions to patch */
@@ -96,8 +103,11 @@ static void mmu_mapin_immr(void)
extern unsigned int DTLBMiss_jmp;
#endif
extern unsigned int DTLBMiss_cmp, FixupDAR_cmp;
+#ifndef CONFIG_PIN_TLB_TEXT
+extern unsigned int ITLBMiss_cmp;
+#endif
-void mmu_patch_cmp_limit(unsigned int *addr, unsigned long mapped)
+static void __init mmu_patch_cmp_limit(unsigned int *addr, unsigned long mapped)
{
unsigned int instr = *addr;
@@ -116,6 +126,9 @@ unsigned long __init mmu_mapin_ram(unsigned long top)
#ifndef CONFIG_PIN_TLB_IMMR
patch_instruction(&DTLBMiss_jmp, PPC_INST_NOP);
#endif
+#ifndef CONFIG_PIN_TLB_TEXT
+ mmu_patch_cmp_limit(&ITLBMiss_cmp, 0);
+#endif
} else {
mapped = top & ~(LARGE_PAGE_SIZE_8M - 1);
}
@@ -133,11 +146,13 @@ unsigned long __init mmu_mapin_ram(unsigned long top)
if (mapped)
memblock_set_current_limit(mapped);
+ block_mapped_ram = mapped;
+
return mapped;
}
-void setup_initial_memory_limit(phys_addr_t first_memblock_base,
- phys_addr_t first_memblock_size)
+void __init setup_initial_memory_limit(phys_addr_t first_memblock_base,
+ phys_addr_t first_memblock_size)
{
/* We don't currently support the first MEMBLOCK not mapping 0
* physical on those processors
diff --git a/arch/powerpc/mm/Makefile b/arch/powerpc/mm/Makefile
index 7414034df1c3..fb844d2f266e 100644
--- a/arch/powerpc/mm/Makefile
+++ b/arch/powerpc/mm/Makefile
@@ -8,7 +8,7 @@ ccflags-$(CONFIG_PPC64) := $(NO_MINIMAL_TOC)
obj-y := fault.o mem.o pgtable.o mmap.o \
init_$(BITS).o pgtable_$(BITS).o \
- init-common.o
+ init-common.o mmu_context.o
obj-$(CONFIG_PPC_MMU_NOHASH) += mmu_context_nohash.o tlb_nohash.o \
tlb_nohash_low.o
obj-$(CONFIG_PPC_BOOK3E) += tlb_low_$(BITS)e.o
@@ -22,8 +22,6 @@ ifeq ($(CONFIG_PPC_STD_MMU_64),y)
obj-$(CONFIG_PPC_4K_PAGES) += hash64_4k.o
obj-$(CONFIG_PPC_64K_PAGES) += hash64_64k.o
endif
-obj-$(CONFIG_PPC_ICSWX) += icswx.o
-obj-$(CONFIG_PPC_ICSWX_PID) += icswx_pid.o
obj-$(CONFIG_40x) += 40x_mmu.o
obj-$(CONFIG_44x) += 44x_mmu.o
obj-$(CONFIG_PPC_8xx) += 8xx_mmu.o
diff --git a/arch/powerpc/mm/dma-noncoherent.c b/arch/powerpc/mm/dma-noncoherent.c
index 2dc74e5c6458..382528475433 100644
--- a/arch/powerpc/mm/dma-noncoherent.c
+++ b/arch/powerpc/mm/dma-noncoherent.c
@@ -227,7 +227,7 @@ __dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *handle, gfp_t
do {
SetPageReserved(page);
- map_page(vaddr, page_to_phys(page),
+ map_kernel_page(vaddr, page_to_phys(page),
pgprot_val(pgprot_noncached(PAGE_KERNEL)));
page++;
vaddr += PAGE_SIZE;
diff --git a/arch/powerpc/mm/dump_hashpagetable.c b/arch/powerpc/mm/dump_hashpagetable.c
index c6b900f54c07..5c4c93dcff19 100644
--- a/arch/powerpc/mm/dump_hashpagetable.c
+++ b/arch/powerpc/mm/dump_hashpagetable.c
@@ -205,7 +205,7 @@ static void dump_hpte_info(struct pg_state *st, unsigned long ea, u64 v, u64 r,
aps_index = calculate_pagesize(st, aps, "actual");
if (aps_index != 2)
seq_printf(st->seq, "LP enc: %lx", lp);
- seq_puts(st->seq, "\n");
+ seq_putc(st->seq, '\n');
}
@@ -335,7 +335,7 @@ static unsigned long hpte_find(struct pg_state *st, unsigned long ea, int psize)
unsigned long rpn, lp_bits;
int base_psize = 0, actual_psize = 0;
- if (ea <= PAGE_OFFSET)
+ if (ea < PAGE_OFFSET)
return -1;
/* Look in primary table */
diff --git a/arch/powerpc/mm/dump_linuxpagetables.c b/arch/powerpc/mm/dump_linuxpagetables.c
index 44fe4833910f..c9282d27b203 100644
--- a/arch/powerpc/mm/dump_linuxpagetables.c
+++ b/arch/powerpc/mm/dump_linuxpagetables.c
@@ -350,7 +350,7 @@ static void note_page(struct pg_state *st, unsigned long addr,
st->current_flags,
pg_level[st->level].num);
- seq_puts(st->seq, "\n");
+ seq_putc(st->seq, '\n');
}
/*
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index 3a7d580fdc59..4797d08581ce 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -45,43 +45,39 @@
#include <asm/siginfo.h>
#include <asm/debug.h>
-#include "icswx.h"
-
-#ifdef CONFIG_KPROBES
-static inline int notify_page_fault(struct pt_regs *regs)
+static inline bool notify_page_fault(struct pt_regs *regs)
{
- int ret = 0;
+ bool ret = false;
+#ifdef CONFIG_KPROBES
/* kprobe_running() needs smp_processor_id() */
if (!user_mode(regs)) {
preempt_disable();
if (kprobe_running() && kprobe_fault_handler(regs, 11))
- ret = 1;
+ ret = true;
preempt_enable();
}
+#endif /* CONFIG_KPROBES */
+
+ if (unlikely(debugger_fault_handler(regs)))
+ ret = true;
return ret;
}
-#else
-static inline int notify_page_fault(struct pt_regs *regs)
-{
- return 0;
-}
-#endif
/*
* Check whether the instruction at regs->nip is a store using
* an update addressing form which will update r1.
*/
-static int store_updates_sp(struct pt_regs *regs)
+static bool store_updates_sp(struct pt_regs *regs)
{
unsigned int inst;
if (get_user(inst, (unsigned int __user *)regs->nip))
- return 0;
+ return false;
/* check for 1 in the rA field */
if (((inst >> 16) & 0x1f) != 1)
- return 0;
+ return false;
/* check major opcode */
switch (inst >> 26) {
case 37: /* stwu */
@@ -89,7 +85,7 @@ static int store_updates_sp(struct pt_regs *regs)
case 45: /* sthu */
case 53: /* stfsu */
case 55: /* stfdu */
- return 1;
+ return true;
case 62: /* std or stdu */
return (inst & 3) == 1;
case 31:
@@ -101,18 +97,53 @@ static int store_updates_sp(struct pt_regs *regs)
case 439: /* sthux */
case 695: /* stfsux */
case 759: /* stfdux */
- return 1;
+ return true;
}
}
- return 0;
+ return false;
}
/*
* do_page_fault error handling helpers
*/
-#define MM_FAULT_RETURN 0
-#define MM_FAULT_CONTINUE -1
-#define MM_FAULT_ERR(sig) (sig)
+static int
+__bad_area_nosemaphore(struct pt_regs *regs, unsigned long address, int si_code)
+{
+ /*
+ * If we are in kernel mode, bail out with a SEGV, this will
+ * be caught by the assembly which will restore the non-volatile
+ * registers before calling bad_page_fault()
+ */
+ if (!user_mode(regs))
+ return SIGSEGV;
+
+ _exception(SIGSEGV, regs, si_code, address);
+
+ return 0;
+}
+
+static noinline int bad_area_nosemaphore(struct pt_regs *regs, unsigned long address)
+{
+ return __bad_area_nosemaphore(regs, address, SEGV_MAPERR);
+}
+
+static int __bad_area(struct pt_regs *regs, unsigned long address, int si_code)
+{
+ struct mm_struct *mm = current->mm;
+
+ /*
+ * Something tried to access memory that isn't in our memory map..
+ * Fix it, but check if it's kernel or user first..
+ */
+ up_read(&mm->mmap_sem);
+
+ return __bad_area_nosemaphore(regs, address, si_code);
+}
+
+static noinline int bad_area(struct pt_regs *regs, unsigned long address)
+{
+ return __bad_area(regs, address, SEGV_MAPERR);
+}
static int do_sigbus(struct pt_regs *regs, unsigned long address,
unsigned int fault)
@@ -121,7 +152,7 @@ static int do_sigbus(struct pt_regs *regs, unsigned long address,
unsigned int lsb = 0;
if (!user_mode(regs))
- return MM_FAULT_ERR(SIGBUS);
+ return SIGBUS;
current->thread.trap_nr = BUS_ADRERR;
info.si_signo = SIGBUS;
@@ -142,25 +173,17 @@ static int do_sigbus(struct pt_regs *regs, unsigned long address,
#endif
info.si_addr_lsb = lsb;
force_sig_info(SIGBUS, &info, current);
- return MM_FAULT_RETURN;
+ return 0;
}
static int mm_fault_error(struct pt_regs *regs, unsigned long addr, int fault)
{
/*
- * Pagefault was interrupted by SIGKILL. We have no reason to
- * continue the pagefault.
+ * Kernel page fault interrupted by SIGKILL. We have no reason to
+ * continue processing.
*/
- if (fatal_signal_pending(current)) {
- /* Coming from kernel, we need to deal with uaccess fixups */
- if (user_mode(regs))
- return MM_FAULT_RETURN;
- return MM_FAULT_ERR(SIGKILL);
- }
-
- /* No fault: be happy */
- if (!(fault & VM_FAULT_ERROR))
- return MM_FAULT_CONTINUE;
+ if (fatal_signal_pending(current) && !user_mode(regs))
+ return SIGKILL;
/* Out of memory */
if (fault & VM_FAULT_OOM) {
@@ -169,18 +192,175 @@ static int mm_fault_error(struct pt_regs *regs, unsigned long addr, int fault)
* made us unable to handle the page fault gracefully.
*/
if (!user_mode(regs))
- return MM_FAULT_ERR(SIGKILL);
+ return SIGSEGV;
pagefault_out_of_memory();
- return MM_FAULT_RETURN;
+ } else {
+ if (fault & (VM_FAULT_SIGBUS|VM_FAULT_HWPOISON|
+ VM_FAULT_HWPOISON_LARGE))
+ return do_sigbus(regs, addr, fault);
+ else if (fault & VM_FAULT_SIGSEGV)
+ return bad_area_nosemaphore(regs, addr);
+ else
+ BUG();
+ }
+ return 0;
+}
+
+/* Is this a bad kernel fault ? */
+static bool bad_kernel_fault(bool is_exec, unsigned long error_code,
+ unsigned long address)
+{
+ if (is_exec && (error_code & (DSISR_NOEXEC_OR_G | DSISR_KEYFAULT))) {
+ printk_ratelimited(KERN_CRIT "kernel tried to execute"
+ " exec-protected page (%lx) -"
+ "exploit attempt? (uid: %d)\n",
+ address, from_kuid(&init_user_ns,
+ current_uid()));
+ }
+ return is_exec || (address >= TASK_SIZE);
+}
+
+static bool bad_stack_expansion(struct pt_regs *regs, unsigned long address,
+ struct vm_area_struct *vma,
+ bool store_update_sp)
+{
+ /*
+ * N.B. The POWER/Open ABI allows programs to access up to
+ * 288 bytes below the stack pointer.
+ * The kernel signal delivery code writes up to about 1.5kB
+ * below the stack pointer (r1) before decrementing it.
+ * The exec code can write slightly over 640kB to the stack
+ * before setting the user r1. Thus we allow the stack to
+ * expand to 1MB without further checks.
+ */
+ if (address + 0x100000 < vma->vm_end) {
+ /* get user regs even if this fault is in kernel mode */
+ struct pt_regs *uregs = current->thread.regs;
+ if (uregs == NULL)
+ return true;
+
+ /*
+ * A user-mode access to an address a long way below
+ * the stack pointer is only valid if the instruction
+ * is one which would update the stack pointer to the
+ * address accessed if the instruction completed,
+ * i.e. either stwu rs,n(r1) or stwux rs,r1,rb
+ * (or the byte, halfword, float or double forms).
+ *
+ * If we don't check this then any write to the area
+ * between the last mapped region and the stack will
+ * expand the stack rather than segfaulting.
+ */
+ if (address + 2048 < uregs->gpr[1] && !store_update_sp)
+ return true;
+ }
+ return false;
+}
+
+static bool access_error(bool is_write, bool is_exec,
+ struct vm_area_struct *vma)
+{
+ /*
+ * Allow execution from readable areas if the MMU does not
+ * provide separate controls over reading and executing.
+ *
+ * Note: That code used to not be enabled for 4xx/BookE.
+ * It is now as I/D cache coherency for these is done at
+ * set_pte_at() time and I see no reason why the test
+ * below wouldn't be valid on those processors. This -may-
+ * break programs compiled with a really old ABI though.
+ */
+ if (is_exec) {
+ return !(vma->vm_flags & VM_EXEC) &&
+ (cpu_has_feature(CPU_FTR_NOEXECUTE) ||
+ !(vma->vm_flags & (VM_READ | VM_WRITE)));
+ }
+
+ if (is_write) {
+ if (unlikely(!(vma->vm_flags & VM_WRITE)))
+ return true;
+ return false;
}
- if (fault & (VM_FAULT_SIGBUS|VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE))
- return do_sigbus(regs, addr, fault);
+ if (unlikely(!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE))))
+ return true;
- /* We don't understand the fault code, this is fatal */
- BUG();
- return MM_FAULT_CONTINUE;
+ return false;
+}
+
+#ifdef CONFIG_PPC_SMLPAR
+static inline void cmo_account_page_fault(void)
+{
+ if (firmware_has_feature(FW_FEATURE_CMO)) {
+ u32 page_ins;
+
+ preempt_disable();
+ page_ins = be32_to_cpu(get_lppaca()->page_ins);
+ page_ins += 1 << PAGE_FACTOR;
+ get_lppaca()->page_ins = cpu_to_be32(page_ins);
+ preempt_enable();
+ }
+}
+#else
+static inline void cmo_account_page_fault(void) { }
+#endif /* CONFIG_PPC_SMLPAR */
+
+#ifdef CONFIG_PPC_STD_MMU
+static void sanity_check_fault(bool is_write, unsigned long error_code)
+{
+ /*
+ * For hash translation mode, we should never get a
+ * PROTFAULT. Any update to pte to reduce access will result in us
+ * removing the hash page table entry, thus resulting in a DSISR_NOHPTE
+ * fault instead of DSISR_PROTFAULT.
+ *
+ * A pte update to relax the access will not result in a hash page table
+ * entry invalidate and hence can result in DSISR_PROTFAULT.
+ * ptep_set_access_flags() doesn't do a hpte flush. This is why we have
+ * the special !is_write in the below conditional.
+ *
+ * For platforms that doesn't supports coherent icache and do support
+ * per page noexec bit, we do setup things such that we do the
+ * sync between D/I cache via fault. But that is handled via low level
+ * hash fault code (hash_page_do_lazy_icache()) and we should not reach
+ * here in such case.
+ *
+ * For wrong access that can result in PROTFAULT, the above vma->vm_flags
+ * check should handle those and hence we should fall to the bad_area
+ * handling correctly.
+ *
+ * For embedded with per page exec support that doesn't support coherent
+ * icache we do get PROTFAULT and we handle that D/I cache sync in
+ * set_pte_at while taking the noexec/prot fault. Hence this is WARN_ON
+ * is conditional for server MMU.
+ *
+ * For radix, we can get prot fault for autonuma case, because radix
+ * page table will have them marked noaccess for user.
+ */
+ if (!radix_enabled() && !is_write)
+ WARN_ON_ONCE(error_code & DSISR_PROTFAULT);
}
+#else
+static void sanity_check_fault(bool is_write, unsigned long error_code) { }
+#endif /* CONFIG_PPC_STD_MMU */
+
+/*
+ * Define the correct "is_write" bit in error_code based
+ * on the processor family
+ */
+#if (defined(CONFIG_4xx) || defined(CONFIG_BOOKE))
+#define page_fault_is_write(__err) ((__err) & ESR_DST)
+#define page_fault_is_bad(__err) (0)
+#else
+#define page_fault_is_write(__err) ((__err) & DSISR_ISSTORE)
+#if defined(CONFIG_PPC_8xx)
+#define page_fault_is_bad(__err) ((__err) & DSISR_NOEXEC_OR_G)
+#elif defined(CONFIG_PPC64)
+#define page_fault_is_bad(__err) ((__err) & DSISR_BAD_FAULT_64S)
+#else
+#define page_fault_is_bad(__err) ((__err) & DSISR_BAD_FAULT_32S)
+#endif
+#endif
/*
* For 600- and 800-family processors, the error_code parameter is DSISR
@@ -195,91 +375,56 @@ static int mm_fault_error(struct pt_regs *regs, unsigned long addr, int fault)
* The return value is 0 if the fault was handled, or the signal
* number if this is a kernel fault that can't be handled here.
*/
-int do_page_fault(struct pt_regs *regs, unsigned long address,
- unsigned long error_code)
+static int __do_page_fault(struct pt_regs *regs, unsigned long address,
+ unsigned long error_code)
{
- enum ctx_state prev_state = exception_enter();
struct vm_area_struct * vma;
struct mm_struct *mm = current->mm;
unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
- int code = SEGV_MAPERR;
- int is_write = 0;
- int trap = TRAP(regs);
- int is_exec = trap == 0x400;
- int fault;
- int rc = 0, store_update_sp = 0;
-
-#if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE))
- /*
- * Fortunately the bit assignments in SRR1 for an instruction
- * fault and DSISR for a data fault are mostly the same for the
- * bits we are interested in. But there are some bits which
- * indicate errors in DSISR but can validly be set in SRR1.
- */
- if (trap == 0x400)
- error_code &= 0x48200000;
- else
- is_write = error_code & DSISR_ISSTORE;
-#else
- is_write = error_code & ESR_DST;
-#endif /* CONFIG_4xx || CONFIG_BOOKE */
-
-#ifdef CONFIG_PPC_ICSWX
- /*
- * we need to do this early because this "data storage
- * interrupt" does not update the DAR/DEAR so we don't want to
- * look at it
- */
- if (error_code & ICSWX_DSI_UCT) {
- rc = acop_handle_fault(regs, address, error_code);
- if (rc)
- goto bail;
- }
-#endif /* CONFIG_PPC_ICSWX */
+ int is_exec = TRAP(regs) == 0x400;
+ int is_user = user_mode(regs);
+ int is_write = page_fault_is_write(error_code);
+ int fault, major = 0;
+ bool store_update_sp = false;
if (notify_page_fault(regs))
- goto bail;
+ return 0;
- if (unlikely(debugger_fault_handler(regs)))
- goto bail;
+ if (unlikely(page_fault_is_bad(error_code))) {
+ if (is_user) {
+ _exception(SIGBUS, regs, BUS_OBJERR, address);
+ return 0;
+ }
+ return SIGBUS;
+ }
+
+ /* Additional sanity check(s) */
+ sanity_check_fault(is_write, error_code);
/*
* The kernel should never take an execute fault nor should it
* take a page fault to a kernel address.
*/
- if (!user_mode(regs) && (is_exec || (address >= TASK_SIZE))) {
- rc = SIGSEGV;
- goto bail;
- }
+ if (unlikely(!is_user && bad_kernel_fault(is_exec, error_code, address)))
+ return SIGSEGV;
-#if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE) || \
- defined(CONFIG_PPC_BOOK3S_64))
- if (error_code & DSISR_DABRMATCH) {
- /* breakpoint match */
- do_break(regs, address, error_code);
- goto bail;
+ /*
+ * If we're in an interrupt, have no user context or are running
+ * in a region with pagefaults disabled then we must not take the fault
+ */
+ if (unlikely(faulthandler_disabled() || !mm)) {
+ if (is_user)
+ printk_ratelimited(KERN_ERR "Page fault in user mode"
+ " with faulthandler_disabled()=%d"
+ " mm=%p\n",
+ faulthandler_disabled(), mm);
+ return bad_area_nosemaphore(regs, address);
}
-#endif
/* We restore the interrupt state now */
if (!arch_irq_disabled_regs(regs))
local_irq_enable();
- if (faulthandler_disabled() || mm == NULL) {
- if (!user_mode(regs)) {
- rc = SIGSEGV;
- goto bail;
- }
- /* faulthandler_disabled() in user mode is really bad,
- as is current->mm == NULL. */
- printk(KERN_EMERG "Page fault in user mode with "
- "faulthandler_disabled() = %d mm = %p\n",
- faulthandler_disabled(), mm);
- printk(KERN_EMERG "NIP = %lx MSR = %lx\n",
- regs->nip, regs->msr);
- die("Weird page fault", regs, SIGSEGV);
- }
-
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
/*
@@ -287,11 +432,15 @@ int do_page_fault(struct pt_regs *regs, unsigned long address,
* can result in fault, which will cause a deadlock when called with
* mmap_sem held
*/
- if (!is_exec && user_mode(regs))
+ if (is_write && is_user)
store_update_sp = store_updates_sp(regs);
- if (user_mode(regs))
+ if (is_user)
flags |= FAULT_FLAG_USER;
+ if (is_write)
+ flags |= FAULT_FLAG_WRITE;
+ if (is_exec)
+ flags |= FAULT_FLAG_INSTRUCTION;
/* When running in the kernel we expect faults to occur only to
* addresses in user space. All other faults represent errors in the
@@ -308,9 +457,9 @@ int do_page_fault(struct pt_regs *regs, unsigned long address,
* source. If this is invalid we can skip the address space check,
* thus avoiding the deadlock.
*/
- if (!down_read_trylock(&mm->mmap_sem)) {
- if (!user_mode(regs) && !search_exception_tables(regs->nip))
- goto bad_area_nosemaphore;
+ if (unlikely(!down_read_trylock(&mm->mmap_sem))) {
+ if (!is_user && !search_exception_tables(regs->nip))
+ return bad_area_nosemaphore(regs, address);
retry:
down_read(&mm->mmap_sem);
@@ -324,122 +473,24 @@ retry:
}
vma = find_vma(mm, address);
- if (!vma)
- goto bad_area;
- if (vma->vm_start <= address)
+ if (unlikely(!vma))
+ return bad_area(regs, address);
+ if (likely(vma->vm_start <= address))
goto good_area;
- if (!(vma->vm_flags & VM_GROWSDOWN))
- goto bad_area;
+ if (unlikely(!(vma->vm_flags & VM_GROWSDOWN)))
+ return bad_area(regs, address);
- /*
- * N.B. The POWER/Open ABI allows programs to access up to
- * 288 bytes below the stack pointer.
- * The kernel signal delivery code writes up to about 1.5kB
- * below the stack pointer (r1) before decrementing it.
- * The exec code can write slightly over 640kB to the stack
- * before setting the user r1. Thus we allow the stack to
- * expand to 1MB without further checks.
- */
- if (address + 0x100000 < vma->vm_end) {
- /* get user regs even if this fault is in kernel mode */
- struct pt_regs *uregs = current->thread.regs;
- if (uregs == NULL)
- goto bad_area;
+ /* The stack is being expanded, check if it's valid */
+ if (unlikely(bad_stack_expansion(regs, address, vma, store_update_sp)))
+ return bad_area(regs, address);
- /*
- * A user-mode access to an address a long way below
- * the stack pointer is only valid if the instruction
- * is one which would update the stack pointer to the
- * address accessed if the instruction completed,
- * i.e. either stwu rs,n(r1) or stwux rs,r1,rb
- * (or the byte, halfword, float or double forms).
- *
- * If we don't check this then any write to the area
- * between the last mapped region and the stack will
- * expand the stack rather than segfaulting.
- */
- if (address + 2048 < uregs->gpr[1] && !store_update_sp)
- goto bad_area;
- }
- if (expand_stack(vma, address))
- goto bad_area;
+ /* Try to expand it */
+ if (unlikely(expand_stack(vma, address)))
+ return bad_area(regs, address);
good_area:
- code = SEGV_ACCERR;
-#if defined(CONFIG_6xx)
- if (error_code & 0x95700000)
- /* an error such as lwarx to I/O controller space,
- address matching DABR, eciwx, etc. */
- goto bad_area;
-#endif /* CONFIG_6xx */
-#if defined(CONFIG_8xx)
- /* The MPC8xx seems to always set 0x80000000, which is
- * "undefined". Of those that can be set, this is the only
- * one which seems bad.
- */
- if (error_code & 0x10000000)
- /* Guarded storage error. */
- goto bad_area;
-#endif /* CONFIG_8xx */
-
- if (is_exec) {
- /*
- * Allow execution from readable areas if the MMU does not
- * provide separate controls over reading and executing.
- *
- * Note: That code used to not be enabled for 4xx/BookE.
- * It is now as I/D cache coherency for these is done at
- * set_pte_at() time and I see no reason why the test
- * below wouldn't be valid on those processors. This -may-
- * break programs compiled with a really old ABI though.
- */
- if (!(vma->vm_flags & VM_EXEC) &&
- (cpu_has_feature(CPU_FTR_NOEXECUTE) ||
- !(vma->vm_flags & (VM_READ | VM_WRITE))))
- goto bad_area;
- /* a write */
- } else if (is_write) {
- if (!(vma->vm_flags & VM_WRITE))
- goto bad_area;
- flags |= FAULT_FLAG_WRITE;
- /* a read */
- } else {
- if (!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE)))
- goto bad_area;
- }
-#ifdef CONFIG_PPC_STD_MMU
- /*
- * For hash translation mode, we should never get a
- * PROTFAULT. Any update to pte to reduce access will result in us
- * removing the hash page table entry, thus resulting in a DSISR_NOHPTE
- * fault instead of DSISR_PROTFAULT.
- *
- * A pte update to relax the access will not result in a hash page table
- * entry invalidate and hence can result in DSISR_PROTFAULT.
- * ptep_set_access_flags() doesn't do a hpte flush. This is why we have
- * the special !is_write in the below conditional.
- *
- * For platforms that doesn't supports coherent icache and do support
- * per page noexec bit, we do setup things such that we do the
- * sync between D/I cache via fault. But that is handled via low level
- * hash fault code (hash_page_do_lazy_icache()) and we should not reach
- * here in such case.
- *
- * For wrong access that can result in PROTFAULT, the above vma->vm_flags
- * check should handle those and hence we should fall to the bad_area
- * handling correctly.
- *
- * For embedded with per page exec support that doesn't support coherent
- * icache we do get PROTFAULT and we handle that D/I cache sync in
- * set_pte_at while taking the noexec/prot fault. Hence this is WARN_ON
- * is conditional for server MMU.
- *
- * For radix, we can get prot fault for autonuma case, because radix
- * page table will have them marked noaccess for user.
- */
- if (!radix_enabled() && !is_write)
- WARN_ON_ONCE(error_code & DSISR_PROTFAULT);
-#endif /* CONFIG_PPC_STD_MMU */
+ if (unlikely(access_error(is_write, is_exec, vma)))
+ return bad_area(regs, address);
/*
* If for any reason at all we couldn't handle the fault,
@@ -447,6 +498,7 @@ good_area:
* the fault.
*/
fault = handle_mm_fault(vma, address, flags);
+ major |= fault & VM_FAULT_MAJOR;
/*
* Handle the retry right now, the mmap_sem has been released in that
@@ -464,64 +516,39 @@ good_area:
if (!fatal_signal_pending(current))
goto retry;
}
- /* We will enter mm_fault_error() below */
- } else
- up_read(&current->mm->mmap_sem);
-
- if (unlikely(fault & (VM_FAULT_RETRY|VM_FAULT_ERROR))) {
- if (fault & VM_FAULT_SIGSEGV)
- goto bad_area_nosemaphore;
- rc = mm_fault_error(regs, address, fault);
- if (rc >= MM_FAULT_RETURN)
- goto bail;
- else
- rc = 0;
+
+ /*
+ * User mode? Just return to handle the fatal exception otherwise
+ * return to bad_page_fault
+ */
+ return is_user ? 0 : SIGBUS;
}
+ up_read(&current->mm->mmap_sem);
+
+ if (unlikely(fault & VM_FAULT_ERROR))
+ return mm_fault_error(regs, address, fault);
+
/*
* Major/minor page fault accounting.
*/
- if (fault & VM_FAULT_MAJOR) {
+ if (major) {
current->maj_flt++;
- perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1,
- regs, address);
-#ifdef CONFIG_PPC_SMLPAR
- if (firmware_has_feature(FW_FEATURE_CMO)) {
- u32 page_ins;
-
- preempt_disable();
- page_ins = be32_to_cpu(get_lppaca()->page_ins);
- page_ins += 1 << PAGE_FACTOR;
- get_lppaca()->page_ins = cpu_to_be32(page_ins);
- preempt_enable();
- }
-#endif /* CONFIG_PPC_SMLPAR */
+ perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs, address);
+ cmo_account_page_fault();
} else {
current->min_flt++;
- perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1,
- regs, address);
- }
-
- goto bail;
-
-bad_area:
- up_read(&mm->mmap_sem);
-
-bad_area_nosemaphore:
- /* User mode accesses cause a SIGSEGV */
- if (user_mode(regs)) {
- _exception(SIGSEGV, regs, code, address);
- goto bail;
+ perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, address);
}
+ return 0;
+}
+NOKPROBE_SYMBOL(__do_page_fault);
- if (is_exec && (error_code & DSISR_PROTFAULT))
- printk_ratelimited(KERN_CRIT "kernel tried to execute NX-protected"
- " page (%lx) - exploit attempt? (uid: %d)\n",
- address, from_kuid(&init_user_ns, current_uid()));
-
- rc = SIGSEGV;
-
-bail:
+int do_page_fault(struct pt_regs *regs, unsigned long address,
+ unsigned long error_code)
+{
+ enum ctx_state prev_state = exception_enter();
+ int rc = __do_page_fault(regs, address, error_code);
exception_exit(prev_state);
return rc;
}
diff --git a/arch/powerpc/mm/hash_low_32.S b/arch/powerpc/mm/hash_low_32.S
index 6f962e5cb5e1..ffbd7c0bda96 100644
--- a/arch/powerpc/mm/hash_low_32.S
+++ b/arch/powerpc/mm/hash_low_32.S
@@ -575,7 +575,6 @@ _GLOBAL(flush_hash_pages)
rlwinm r8,r8,0,31,29 /* clear HASHPTE bit */
stwcx. r8,0,r5 /* update the pte */
bne- 33b
-EXPORT_SYMBOL(flush_hash_pages)
/* Get the address of the primary PTE group in the hash table (r3) */
_GLOBAL(flush_hash_patch_A)
@@ -634,6 +633,7 @@ _GLOBAL(flush_hash_patch_B)
SYNC_601
isync
blr
+EXPORT_SYMBOL(flush_hash_pages)
/*
* Flush an entry from the TLB
diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c
index 65bb8f33b399..3848af167df9 100644
--- a/arch/powerpc/mm/hash_native_64.c
+++ b/arch/powerpc/mm/hash_native_64.c
@@ -15,6 +15,7 @@
#include <linux/spinlock.h>
#include <linux/bitops.h>
#include <linux/of.h>
+#include <linux/processor.h>
#include <linux/threads.h>
#include <linux/smp.h>
@@ -23,6 +24,7 @@
#include <asm/mmu_context.h>
#include <asm/pgtable.h>
#include <asm/tlbflush.h>
+#include <asm/trace.h>
#include <asm/tlb.h>
#include <asm/cputable.h>
#include <asm/udbg.h>
@@ -98,6 +100,7 @@ static inline void __tlbie(unsigned long vpn, int psize, int apsize, int ssize)
: "memory");
break;
}
+ trace_tlbie(0, 0, va, 0, 0, 0, 0);
}
static inline void __tlbiel(unsigned long vpn, int psize, int apsize, int ssize)
@@ -147,6 +150,7 @@ static inline void __tlbiel(unsigned long vpn, int psize, int apsize, int ssize)
: "memory");
break;
}
+ trace_tlbie(0, 1, va, 0, 0, 0, 0);
}
@@ -181,8 +185,10 @@ static inline void native_lock_hpte(struct hash_pte *hptep)
while (1) {
if (!test_and_set_bit_lock(HPTE_LOCK_BIT, word))
break;
+ spin_begin();
while(test_bit(HPTE_LOCK_BIT, word))
- cpu_relax();
+ spin_cpu_relax();
+ spin_end();
}
}
@@ -407,6 +413,38 @@ static void native_hpte_updateboltedpp(unsigned long newpp, unsigned long ea,
tlbie(vpn, psize, psize, ssize, 0);
}
+/*
+ * Remove a bolted kernel entry. Memory hotplug uses this.
+ *
+ * No need to lock here because we should be the only user.
+ */
+static int native_hpte_removebolted(unsigned long ea, int psize, int ssize)
+{
+ unsigned long vpn;
+ unsigned long vsid;
+ long slot;
+ struct hash_pte *hptep;
+
+ vsid = get_kernel_vsid(ea, ssize);
+ vpn = hpt_vpn(ea, vsid, ssize);
+
+ slot = native_hpte_find(vpn, psize, ssize);
+ if (slot == -1)
+ return -ENOENT;
+
+ hptep = htab_address + slot;
+
+ VM_WARN_ON(!(be64_to_cpu(hptep->v) & HPTE_V_BOLTED));
+
+ /* Invalidate the hpte */
+ hptep->v = 0;
+
+ /* Invalidate the TLB */
+ tlbie(vpn, psize, psize, ssize, 0);
+ return 0;
+}
+
+
static void native_hpte_invalidate(unsigned long slot, unsigned long vpn,
int bpsize, int apsize, int ssize, int local)
{
@@ -725,6 +763,7 @@ void __init hpte_init_native(void)
mmu_hash_ops.hpte_invalidate = native_hpte_invalidate;
mmu_hash_ops.hpte_updatepp = native_hpte_updatepp;
mmu_hash_ops.hpte_updateboltedpp = native_hpte_updateboltedpp;
+ mmu_hash_ops.hpte_removebolted = native_hpte_removebolted;
mmu_hash_ops.hpte_insert = native_hpte_insert;
mmu_hash_ops.hpte_remove = native_hpte_remove;
mmu_hash_ops.hpte_clear_all = native_hpte_clear;
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index f2095ce9d4b0..67ec2e927253 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -61,6 +61,7 @@
#include <asm/tm.h>
#include <asm/trace.h>
#include <asm/ps3.h>
+#include <asm/pte-walk.h>
#ifdef DEBUG
#define DBG(fmt...) udbg_printf(fmt)
@@ -507,9 +508,9 @@ static int __init htab_dt_scan_hugepage_blocks(unsigned long node,
printk(KERN_INFO "Huge page(16GB) memory: "
"addr = 0x%lX size = 0x%lX pages = %d\n",
phys_addr, block_size, expected_pages);
- if (phys_addr + (16 * GB) <= memblock_end_of_DRAM()) {
+ if (phys_addr + block_size * expected_pages <= memblock_end_of_DRAM()) {
memblock_reserve(phys_addr, block_size * expected_pages);
- add_gpage(phys_addr, block_size, expected_pages);
+ pseries_add_gpage(phys_addr, block_size, expected_pages);
}
return 0;
}
@@ -810,6 +811,8 @@ static void update_hid_for_hash(void)
asm volatile(PPC_TLBIE_5(%0, %4, %3, %2, %1)
: : "r"(rb), "i"(0), "i"(0), "i"(2), "r"(0) : "memory");
asm volatile("eieio; tlbsync; ptesync; isync; slbia": : :"memory");
+ trace_tlbie(0, 0, rb, 0, 2, 0, 0);
+
/*
* now switch the HID
*/
@@ -1017,6 +1020,7 @@ void __init hash__early_init_mmu(void)
__kernel_virt_size = H_KERN_VIRT_SIZE;
__vmalloc_start = H_VMALLOC_START;
__vmalloc_end = H_VMALLOC_END;
+ __kernel_io_start = H_KERN_IO_START;
vmemmap = (struct page *)H_VMEMMAP_BASE;
ioremap_bot = IOREMAP_BASE;
@@ -1226,7 +1230,6 @@ int hash_page_mm(struct mm_struct *mm, unsigned long ea,
unsigned long vsid;
pte_t *ptep;
unsigned hugeshift;
- const struct cpumask *tmp;
int rc, user_region = 0;
int psize, ssize;
@@ -1278,8 +1281,7 @@ int hash_page_mm(struct mm_struct *mm, unsigned long ea,
}
/* Check CPU locality */
- tmp = cpumask_of(smp_processor_id());
- if (user_region && cpumask_equal(mm_cpumask(mm), tmp))
+ if (user_region && mm_is_thread_local(mm))
flags |= HPTE_LOCAL_UPDATE;
#ifndef CONFIG_PPC_64K_PAGES
@@ -1295,7 +1297,7 @@ int hash_page_mm(struct mm_struct *mm, unsigned long ea,
#endif /* CONFIG_PPC_64K_PAGES */
/* Get PTE and page size from page tables */
- ptep = __find_linux_pte_or_hugepte(pgdir, ea, &is_thp, &hugeshift);
+ ptep = find_linux_pte(pgdir, ea, &is_thp, &hugeshift);
if (ptep == NULL || !pte_present(*ptep)) {
DBG_LOW(" no PTE !\n");
rc = 1;
@@ -1524,7 +1526,7 @@ void hash_preload(struct mm_struct *mm, unsigned long ea,
* THP pages use update_mmu_cache_pmd. We don't do
* hash preload there. Hence can ignore THP here
*/
- ptep = find_linux_pte_or_hugepte(pgdir, ea, NULL, &hugepage_shift);
+ ptep = find_current_mm_pte(pgdir, ea, NULL, &hugepage_shift);
if (!ptep)
goto out_exit;
@@ -1541,7 +1543,7 @@ void hash_preload(struct mm_struct *mm, unsigned long ea,
#endif /* CONFIG_PPC_64K_PAGES */
/* Is that local to this CPU ? */
- if (cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id())))
+ if (mm_is_thread_local(mm))
update_flags |= HPTE_LOCAL_UPDATE;
/* Hash it in */
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index a4f33de4008e..1571a498a33f 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -17,11 +17,15 @@
#include <linux/memblock.h>
#include <linux/bootmem.h>
#include <linux/moduleparam.h>
+#include <linux/swap.h>
+#include <linux/swapops.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/tlb.h>
#include <asm/setup.h>
#include <asm/hugetlb.h>
+#include <asm/pte-walk.h>
+
#ifdef CONFIG_HUGETLB_PAGE
@@ -32,33 +36,17 @@
#define PAGE_SHIFT_16G 34
unsigned int HPAGE_SHIFT;
-
-/*
- * Tracks gpages after the device tree is scanned and before the
- * huge_boot_pages list is ready. On non-Freescale implementations, this is
- * just used to track 16G pages and so is a single array. FSL-based
- * implementations may have more than one gpage size, so we need multiple
- * arrays
- */
-#if defined(CONFIG_PPC_FSL_BOOK3E) || defined(CONFIG_PPC_8xx)
-#define MAX_NUMBER_GPAGES 128
-struct psize_gpages {
- u64 gpage_list[MAX_NUMBER_GPAGES];
- unsigned int nr_gpages;
-};
-static struct psize_gpages gpage_freearray[MMU_PAGE_COUNT];
-#else
-#define MAX_NUMBER_GPAGES 1024
-static u64 gpage_freearray[MAX_NUMBER_GPAGES];
-static unsigned nr_gpages;
-#endif
+EXPORT_SYMBOL(HPAGE_SHIFT);
#define hugepd_none(hpd) (hpd_val(hpd) == 0)
-pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
+pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr, unsigned long sz)
{
- /* Only called for hugetlbfs pages, hence can ignore THP */
- return __find_linux_pte_or_hugepte(mm->pgd, addr, NULL, NULL);
+ /*
+ * Only called for hugetlbfs pages, hence can ignore THP and the
+ * irq disabled walk.
+ */
+ return __find_linux_pte(mm->pgd, addr, NULL, NULL);
}
static int __hugepte_alloc(struct mm_struct *mm, hugepd_t *hpdp,
@@ -77,7 +65,7 @@ static int __hugepte_alloc(struct mm_struct *mm, hugepd_t *hpdp,
num_hugepd = 1;
}
- new = kmem_cache_zalloc(cachep, GFP_KERNEL);
+ new = kmem_cache_zalloc(cachep, pgtable_gfp_flags(mm, GFP_KERNEL));
BUG_ON(pshift > HUGEPD_SHIFT_MASK);
BUG_ON((unsigned long)new & HUGEPD_SHIFT_MASK);
@@ -207,145 +195,20 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr, unsigned long sz
return hugepte_offset(*hpdp, addr, pdshift);
}
-#if defined(CONFIG_PPC_FSL_BOOK3E) || defined(CONFIG_PPC_8xx)
-/* Build list of addresses of gigantic pages. This function is used in early
- * boot before the buddy allocator is setup.
- */
-void add_gpage(u64 addr, u64 page_size, unsigned long number_of_pages)
-{
- unsigned int idx = shift_to_mmu_psize(__ffs(page_size));
- int i;
-
- if (addr == 0)
- return;
-
- gpage_freearray[idx].nr_gpages = number_of_pages;
-
- for (i = 0; i < number_of_pages; i++) {
- gpage_freearray[idx].gpage_list[i] = addr;
- addr += page_size;
- }
-}
-
-/*
- * Moves the gigantic page addresses from the temporary list to the
- * huge_boot_pages list.
- */
-int alloc_bootmem_huge_page(struct hstate *hstate)
-{
- struct huge_bootmem_page *m;
- int idx = shift_to_mmu_psize(huge_page_shift(hstate));
- int nr_gpages = gpage_freearray[idx].nr_gpages;
-
- if (nr_gpages == 0)
- return 0;
-
-#ifdef CONFIG_HIGHMEM
- /*
- * If gpages can be in highmem we can't use the trick of storing the
- * data structure in the page; allocate space for this
- */
- m = memblock_virt_alloc(sizeof(struct huge_bootmem_page), 0);
- m->phys = gpage_freearray[idx].gpage_list[--nr_gpages];
-#else
- m = phys_to_virt(gpage_freearray[idx].gpage_list[--nr_gpages]);
-#endif
-
- list_add(&m->list, &huge_boot_pages);
- gpage_freearray[idx].nr_gpages = nr_gpages;
- gpage_freearray[idx].gpage_list[nr_gpages] = 0;
- m->hstate = hstate;
-
- return 1;
-}
+#ifdef CONFIG_PPC_BOOK3S_64
/*
- * Scan the command line hugepagesz= options for gigantic pages; store those in
- * a list that we use to allocate the memory once all options are parsed.
+ * Tracks gpages after the device tree is scanned and before the
+ * huge_boot_pages list is ready on pseries.
*/
-
-unsigned long gpage_npages[MMU_PAGE_COUNT];
-
-static int __init do_gpage_early_setup(char *param, char *val,
- const char *unused, void *arg)
-{
- static phys_addr_t size;
- unsigned long npages;
-
- /*
- * The hugepagesz and hugepages cmdline options are interleaved. We
- * use the size variable to keep track of whether or not this was done
- * properly and skip over instances where it is incorrect. Other
- * command-line parsing code will issue warnings, so we don't need to.
- *
- */
- if ((strcmp(param, "default_hugepagesz") == 0) ||
- (strcmp(param, "hugepagesz") == 0)) {
- size = memparse(val, NULL);
- } else if (strcmp(param, "hugepages") == 0) {
- if (size != 0) {
- if (sscanf(val, "%lu", &npages) <= 0)
- npages = 0;
- if (npages > MAX_NUMBER_GPAGES) {
- pr_warn("MMU: %lu pages requested for page "
-#ifdef CONFIG_PHYS_ADDR_T_64BIT
- "size %llu KB, limiting to "
-#else
- "size %u KB, limiting to "
-#endif
- __stringify(MAX_NUMBER_GPAGES) "\n",
- npages, size / 1024);
- npages = MAX_NUMBER_GPAGES;
- }
- gpage_npages[shift_to_mmu_psize(__ffs(size))] = npages;
- size = 0;
- }
- }
- return 0;
-}
-
+#define MAX_NUMBER_GPAGES 1024
+__initdata static u64 gpage_freearray[MAX_NUMBER_GPAGES];
+__initdata static unsigned nr_gpages;
/*
- * This function allocates physical space for pages that are larger than the
- * buddy allocator can handle. We want to allocate these in highmem because
- * the amount of lowmem is limited. This means that this function MUST be
- * called before lowmem_end_addr is set up in MMU_init() in order for the lmb
- * allocate to grab highmem.
- */
-void __init reserve_hugetlb_gpages(void)
-{
- static __initdata char cmdline[COMMAND_LINE_SIZE];
- phys_addr_t size, base;
- int i;
-
- strlcpy(cmdline, boot_command_line, COMMAND_LINE_SIZE);
- parse_args("hugetlb gpages", cmdline, NULL, 0, 0, 0,
- NULL, &do_gpage_early_setup);
-
- /*
- * Walk gpage list in reverse, allocating larger page sizes first.
- * Skip over unsupported sizes, or sizes that have 0 gpages allocated.
- * When we reach the point in the list where pages are no longer
- * considered gpages, we're done.
- */
- for (i = MMU_PAGE_COUNT-1; i >= 0; i--) {
- if (mmu_psize_defs[i].shift == 0 || gpage_npages[i] == 0)
- continue;
- else if (mmu_psize_to_shift(i) < (MAX_ORDER + PAGE_SHIFT))
- break;
-
- size = (phys_addr_t)(1ULL << mmu_psize_to_shift(i));
- base = memblock_alloc_base(size * gpage_npages[i], size,
- MEMBLOCK_ALLOC_ANYWHERE);
- add_gpage(base, size, gpage_npages[i]);
- }
-}
-
-#else /* !PPC_FSL_BOOK3E */
-
-/* Build list of addresses of gigantic pages. This function is used in early
+ * Build list of addresses of gigantic pages. This function is used in early
* boot before the buddy allocator is setup.
*/
-void add_gpage(u64 addr, u64 page_size, unsigned long number_of_pages)
+void __init pseries_add_gpage(u64 addr, u64 page_size, unsigned long number_of_pages)
{
if (!addr)
return;
@@ -357,10 +220,7 @@ void add_gpage(u64 addr, u64 page_size, unsigned long number_of_pages)
}
}
-/* Moves the gigantic page addresses from the temporary list to the
- * huge_boot_pages list.
- */
-int alloc_bootmem_huge_page(struct hstate *hstate)
+int __init pseries_alloc_bootmem_huge_page(struct hstate *hstate)
{
struct huge_bootmem_page *m;
if (nr_gpages == 0)
@@ -373,6 +233,17 @@ int alloc_bootmem_huge_page(struct hstate *hstate)
}
#endif
+
+int __init alloc_bootmem_huge_page(struct hstate *h)
+{
+
+#ifdef CONFIG_PPC_BOOK3S_64
+ if (firmware_has_feature(FW_FEATURE_LPAR) && !radix_enabled())
+ return pseries_alloc_bootmem_huge_page(h);
+#endif
+ return __alloc_bootmem_huge_page(h);
+}
+
#if defined(CONFIG_PPC_FSL_BOOK3E) || defined(CONFIG_PPC_8xx)
#define HUGEPD_FREELIST_SIZE \
((PAGE_SIZE - sizeof(struct hugepd_freelist)) / sizeof(pte_t))
@@ -404,8 +275,7 @@ static void hugepd_free(struct mmu_gather *tlb, void *hugepte)
batchp = &get_cpu_var(hugepd_freelist_cur);
if (atomic_read(&tlb->mm->mm_users) < 2 ||
- cpumask_equal(mm_cpumask(tlb->mm),
- cpumask_of(smp_processor_id()))) {
+ mm_is_thread_local(tlb->mm)) {
kmem_cache_free(hugepte_cache, hugepte);
put_cpu_var(hugepd_freelist_cur);
return;
@@ -617,62 +487,39 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb,
} while (addr = next, addr != end);
}
-/*
- * We are holding mmap_sem, so a parallel huge page collapse cannot run.
- * To prevent hugepage split, disable irq.
- */
-struct page *
-follow_huge_addr(struct mm_struct *mm, unsigned long address, int write)
+struct page *follow_huge_pd(struct vm_area_struct *vma,
+ unsigned long address, hugepd_t hpd,
+ int flags, int pdshift)
{
- bool is_thp;
- pte_t *ptep, pte;
- unsigned shift;
- unsigned long mask, flags;
- struct page *page = ERR_PTR(-EINVAL);
-
- local_irq_save(flags);
- ptep = find_linux_pte_or_hugepte(mm->pgd, address, &is_thp, &shift);
- if (!ptep)
- goto no_page;
- pte = READ_ONCE(*ptep);
- /*
- * Verify it is a huge page else bail.
- * Transparent hugepages are handled by generic code. We can skip them
- * here.
- */
- if (!shift || is_thp)
- goto no_page;
-
- if (!pte_present(pte)) {
- page = NULL;
- goto no_page;
+ pte_t *ptep;
+ spinlock_t *ptl;
+ struct page *page = NULL;
+ unsigned long mask;
+ int shift = hugepd_shift(hpd);
+ struct mm_struct *mm = vma->vm_mm;
+
+retry:
+ ptl = &mm->page_table_lock;
+ spin_lock(ptl);
+
+ ptep = hugepte_offset(hpd, address, pdshift);
+ if (pte_present(*ptep)) {
+ mask = (1UL << shift) - 1;
+ page = pte_page(*ptep);
+ page += ((address & mask) >> PAGE_SHIFT);
+ if (flags & FOLL_GET)
+ get_page(page);
+ } else {
+ if (is_hugetlb_entry_migration(*ptep)) {
+ spin_unlock(ptl);
+ __migration_entry_wait(mm, ptep, ptl);
+ goto retry;
+ }
}
- mask = (1UL << shift) - 1;
- page = pte_page(pte);
- if (page)
- page += (address & mask) / PAGE_SIZE;
-
-no_page:
- local_irq_restore(flags);
+ spin_unlock(ptl);
return page;
}
-struct page *
-follow_huge_pmd(struct mm_struct *mm, unsigned long address,
- pmd_t *pmd, int write)
-{
- BUG();
- return NULL;
-}
-
-struct page *
-follow_huge_pud(struct mm_struct *mm, unsigned long address,
- pud_t *pud, int write)
-{
- BUG();
- return NULL;
-}
-
static unsigned long hugepte_addr_end(unsigned long addr, unsigned long end,
unsigned long sz)
{
@@ -763,8 +610,11 @@ static int __init add_huge_page_size(unsigned long long size)
* Hash: 16M and 16G
*/
if (radix_enabled()) {
- if (mmu_psize != MMU_PAGE_2M)
- return -EINVAL;
+ if (mmu_psize != MMU_PAGE_2M) {
+ if (cpu_has_feature(CPU_FTR_POWER9_DD1) ||
+ (mmu_psize != MMU_PAGE_1G))
+ return -EINVAL;
+ }
} else {
if (mmu_psize != MMU_PAGE_16M && mmu_psize != MMU_PAGE_16G)
return -EINVAL;
@@ -903,9 +753,8 @@ void flush_dcache_icache_hugepage(struct page *page)
* This function need to be called with interrupts disabled. We use this variant
* when we have MSR[EE] = 0 but the paca->soft_enabled = 1
*/
-
-pte_t *__find_linux_pte_or_hugepte(pgd_t *pgdir, unsigned long ea,
- bool *is_thp, unsigned *shift)
+pte_t *__find_linux_pte(pgd_t *pgdir, unsigned long ea,
+ bool *is_thp, unsigned *hpage_shift)
{
pgd_t pgd, *pgdp;
pud_t pud, *pudp;
@@ -914,8 +763,8 @@ pte_t *__find_linux_pte_or_hugepte(pgd_t *pgdir, unsigned long ea,
hugepd_t *hpdp = NULL;
unsigned pdshift = PGDIR_SHIFT;
- if (shift)
- *shift = 0;
+ if (hpage_shift)
+ *hpage_shift = 0;
if (is_thp)
*is_thp = false;
@@ -963,7 +812,7 @@ pte_t *__find_linux_pte_or_hugepte(pgd_t *pgdir, unsigned long ea,
if (pmd_none(pmd))
return NULL;
- if (pmd_trans_huge(pmd)) {
+ if (pmd_trans_huge(pmd) || pmd_devmap(pmd)) {
if (is_thp)
*is_thp = true;
ret_pte = (pte_t *) pmdp;
@@ -985,16 +834,15 @@ pte_t *__find_linux_pte_or_hugepte(pgd_t *pgdir, unsigned long ea,
ret_pte = hugepte_offset(*hpdp, ea, pdshift);
pdshift = hugepd_shift(*hpdp);
out:
- if (shift)
- *shift = pdshift;
+ if (hpage_shift)
+ *hpage_shift = pdshift;
return ret_pte;
}
-EXPORT_SYMBOL_GPL(__find_linux_pte_or_hugepte);
+EXPORT_SYMBOL_GPL(__find_linux_pte);
int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr,
unsigned long end, int write, struct page **pages, int *nr)
{
- unsigned long mask;
unsigned long pte_end;
struct page *head, *page;
pte_t pte;
@@ -1005,18 +853,10 @@ int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr,
end = pte_end;
pte = READ_ONCE(*ptep);
- mask = _PAGE_PRESENT | _PAGE_READ;
-
- /*
- * On some CPUs like the 8xx, _PAGE_RW hence _PAGE_WRITE is defined
- * as 0 and _PAGE_RO has to be set when a page is not writable
- */
- if (write)
- mask |= _PAGE_WRITE;
- else
- mask |= _PAGE_RO;
- if ((pte_val(pte) & mask) != mask)
+ if (!pte_present(pte) || !pte_read(pte))
+ return 0;
+ if (write && !pte_write(pte))
return 0;
/* hugepages are never "special" */
diff --git a/arch/powerpc/mm/icswx.c b/arch/powerpc/mm/icswx.c
deleted file mode 100644
index 1fa794d7d59f..000000000000
--- a/arch/powerpc/mm/icswx.c
+++ /dev/null
@@ -1,292 +0,0 @@
-/*
- * ICSWX and ACOP Management
- *
- * Copyright (C) 2011 Anton Blanchard, IBM Corp. <anton@samba.org>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- */
-
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/spinlock.h>
-#include <linux/module.h>
-#include <linux/uaccess.h>
-
-#include "icswx.h"
-
-/*
- * The processor and its L2 cache cause the icswx instruction to
- * generate a COP_REQ transaction on PowerBus. The transaction has no
- * address, and the processor does not perform an MMU access to
- * authenticate the transaction. The command portion of the PowerBus
- * COP_REQ transaction includes the LPAR_ID (LPID) and the coprocessor
- * Process ID (PID), which the coprocessor compares to the authorized
- * LPID and PID held in the coprocessor, to determine if the process
- * is authorized to generate the transaction. The data of the COP_REQ
- * transaction is 128-byte or less in size and is placed in cacheable
- * memory on a 128-byte cache line boundary.
- *
- * The task to use a coprocessor should use use_cop() to mark the use
- * of the Coprocessor Type (CT) and context switching. On a server
- * class processor, the PID register is used only for coprocessor
- * management + * and so a coprocessor PID is allocated before
- * executing icswx + * instruction. Drop_cop() is used to free the
- * coprocessor PID.
- *
- * Example:
- * Host Fabric Interface (HFI) is a PowerPC network coprocessor.
- * Each HFI have multiple windows. Each HFI window serves as a
- * network device sending to and receiving from HFI network.
- * HFI immediate send function uses icswx instruction. The immediate
- * send function allows small (single cache-line) packets be sent
- * without using the regular HFI send FIFO and doorbell, which are
- * much slower than immediate send.
- *
- * For each task intending to use HFI immediate send, the HFI driver
- * calls use_cop() to obtain a coprocessor PID for the task.
- * The HFI driver then allocate a free HFI window and save the
- * coprocessor PID to the HFI window to allow the task to use the
- * HFI window.
- *
- * The HFI driver repeatedly creates immediate send packets and
- * issues icswx instruction to send data through the HFI window.
- * The HFI compares the coprocessor PID in the CPU PID register
- * to the PID held in the HFI window to determine if the transaction
- * is allowed.
- *
- * When the task to release the HFI window, the HFI driver calls
- * drop_cop() to release the coprocessor PID.
- */
-
-void switch_cop(struct mm_struct *next)
-{
-#ifdef CONFIG_PPC_ICSWX_PID
- mtspr(SPRN_PID, next->context.cop_pid);
-#endif
- mtspr(SPRN_ACOP, next->context.acop);
-}
-
-/**
- * Start using a coprocessor.
- * @acop: mask of coprocessor to be used.
- * @mm: The mm the coprocessor to associate with. Most likely current mm.
- *
- * Return a positive PID if successful. Negative errno otherwise.
- * The returned PID will be fed to the coprocessor to determine if an
- * icswx transaction is authenticated.
- */
-int use_cop(unsigned long acop, struct mm_struct *mm)
-{
- int ret;
-
- if (!cpu_has_feature(CPU_FTR_ICSWX))
- return -ENODEV;
-
- if (!mm || !acop)
- return -EINVAL;
-
- /* The page_table_lock ensures mm_users won't change under us */
- spin_lock(&mm->page_table_lock);
- spin_lock(mm->context.cop_lockp);
-
- ret = get_cop_pid(mm);
- if (ret < 0)
- goto out;
-
- /* update acop */
- mm->context.acop |= acop;
-
- sync_cop(mm);
-
- /*
- * If this is a threaded process then there might be other threads
- * running. We need to send an IPI to force them to pick up any
- * change in PID and ACOP.
- */
- if (atomic_read(&mm->mm_users) > 1)
- smp_call_function(sync_cop, mm, 1);
-
-out:
- spin_unlock(mm->context.cop_lockp);
- spin_unlock(&mm->page_table_lock);
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(use_cop);
-
-/**
- * Stop using a coprocessor.
- * @acop: mask of coprocessor to be stopped.
- * @mm: The mm the coprocessor associated with.
- */
-void drop_cop(unsigned long acop, struct mm_struct *mm)
-{
- int free_pid;
-
- if (!cpu_has_feature(CPU_FTR_ICSWX))
- return;
-
- if (WARN_ON_ONCE(!mm))
- return;
-
- /* The page_table_lock ensures mm_users won't change under us */
- spin_lock(&mm->page_table_lock);
- spin_lock(mm->context.cop_lockp);
-
- mm->context.acop &= ~acop;
-
- free_pid = disable_cop_pid(mm);
- sync_cop(mm);
-
- /*
- * If this is a threaded process then there might be other threads
- * running. We need to send an IPI to force them to pick up any
- * change in PID and ACOP.
- */
- if (atomic_read(&mm->mm_users) > 1)
- smp_call_function(sync_cop, mm, 1);
-
- if (free_pid != COP_PID_NONE)
- free_cop_pid(free_pid);
-
- spin_unlock(mm->context.cop_lockp);
- spin_unlock(&mm->page_table_lock);
-}
-EXPORT_SYMBOL_GPL(drop_cop);
-
-static int acop_use_cop(int ct)
-{
- /* There is no alternate policy, yet */
- return -1;
-}
-
-/*
- * Get the instruction word at the NIP
- */
-static u32 acop_get_inst(struct pt_regs *regs)
-{
- u32 inst;
- u32 __user *p;
-
- p = (u32 __user *)regs->nip;
- if (!access_ok(VERIFY_READ, p, sizeof(*p)))
- return 0;
-
- if (__get_user(inst, p))
- return 0;
-
- return inst;
-}
-
-/**
- * @regs: registers at time of interrupt
- * @address: storage address
- * @error_code: Fault code, usually the DSISR or ESR depending on
- * processor type
- *
- * Return 0 if we are able to resolve the data storage fault that
- * results from a CT miss in the ACOP register.
- */
-int acop_handle_fault(struct pt_regs *regs, unsigned long address,
- unsigned long error_code)
-{
- int ct;
- u32 inst = 0;
-
- if (!cpu_has_feature(CPU_FTR_ICSWX)) {
- pr_info("No coprocessors available");
- _exception(SIGILL, regs, ILL_ILLOPN, address);
- }
-
- if (!user_mode(regs)) {
- /* this could happen if the HV denies the
- * kernel access, for now we just die */
- die("ICSWX from kernel failed", regs, SIGSEGV);
- }
-
- /* Some implementations leave us a hint for the CT */
- ct = ICSWX_GET_CT_HINT(error_code);
- if (ct < 0) {
- /* we have to peek at the instruction word to figure out CT */
- u32 ccw;
- u32 rs;
-
- inst = acop_get_inst(regs);
- if (inst == 0)
- return -1;
-
- rs = (inst >> (31 - 10)) & 0x1f;
- ccw = regs->gpr[rs];
- ct = (ccw >> 16) & 0x3f;
- }
-
- /*
- * We could be here because another thread has enabled acop
- * but the ACOP register has yet to be updated.
- *
- * This should have been taken care of by the IPI to sync all
- * the threads (see smp_call_function(sync_cop, mm, 1)), but
- * that could take forever if there are a significant amount
- * of threads.
- *
- * Given the number of threads on some of these systems,
- * perhaps this is the best way to sync ACOP rather than whack
- * every thread with an IPI.
- */
- if ((acop_copro_type_bit(ct) & current->active_mm->context.acop) != 0) {
- sync_cop(current->active_mm);
- return 0;
- }
-
- /* check for alternate policy */
- if (!acop_use_cop(ct))
- return 0;
-
- /* at this point the CT is unknown to the system */
- pr_warn("%s[%d]: Coprocessor %d is unavailable\n",
- current->comm, current->pid, ct);
-
- /* get inst if we don't already have it */
- if (inst == 0) {
- inst = acop_get_inst(regs);
- if (inst == 0)
- return -1;
- }
-
- /* Check if the instruction is the "record form" */
- if (inst & 1) {
- /*
- * the instruction is "record" form so we can reject
- * using CR0
- */
- regs->ccr &= ~(0xful << 28);
- regs->ccr |= ICSWX_RC_NOT_FOUND << 28;
-
- /* Move on to the next instruction */
- regs->nip += 4;
- } else {
- /*
- * There is no architected mechanism to report a bad
- * CT so we could either SIGILL or report nothing.
- * Since the non-record version should only bu used
- * for "hints" or "don't care" we should probably do
- * nothing. However, I could see how some people
- * might want an SIGILL so it here if you want it.
- */
-#ifdef CONFIG_PPC_ICSWX_USE_SIGILL
- _exception(SIGILL, regs, ILL_ILLOPN, address);
-#else
- regs->nip += 4;
-#endif
- }
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(acop_handle_fault);
diff --git a/arch/powerpc/mm/icswx.h b/arch/powerpc/mm/icswx.h
deleted file mode 100644
index 6dedc08e62c8..000000000000
--- a/arch/powerpc/mm/icswx.h
+++ /dev/null
@@ -1,68 +0,0 @@
-#ifndef _ARCH_POWERPC_MM_ICSWX_H_
-#define _ARCH_POWERPC_MM_ICSWX_H_
-
-/*
- * ICSWX and ACOP Management
- *
- * Copyright (C) 2011 Anton Blanchard, IBM Corp. <anton@samba.org>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- */
-
-#include <asm/mmu_context.h>
-
-/* also used to denote that PIDs are not used */
-#define COP_PID_NONE 0
-
-static inline void sync_cop(void *arg)
-{
- struct mm_struct *mm = arg;
-
- if (mm == current->active_mm)
- switch_cop(current->active_mm);
-}
-
-#ifdef CONFIG_PPC_ICSWX_PID
-extern int get_cop_pid(struct mm_struct *mm);
-extern int disable_cop_pid(struct mm_struct *mm);
-extern void free_cop_pid(int free_pid);
-#else
-#define get_cop_pid(m) (COP_PID_NONE)
-#define disable_cop_pid(m) (COP_PID_NONE)
-#define free_cop_pid(p)
-#endif
-
-/*
- * These are implementation bits for architected registers. If this
- * ever becomes architecture the should be moved to reg.h et. al.
- */
-/* UCT is the same bit for Server and Embedded */
-#define ICSWX_DSI_UCT 0x00004000 /* Unavailable Coprocessor Type */
-
-#ifdef CONFIG_PPC_BOOK3E
-/* Embedded implementation gives us no hints as to what the CT is */
-#define ICSWX_GET_CT_HINT(x) (-1)
-#else
-/* Server implementation contains the CT value in the DSISR */
-#define ICSWX_DSISR_CTMASK 0x00003f00
-#define ICSWX_GET_CT_HINT(x) (((x) & ICSWX_DSISR_CTMASK) >> 8)
-#endif
-
-#define ICSWX_RC_STARTED 0x8 /* The request has been started */
-#define ICSWX_RC_NOT_IDLE 0x4 /* No coprocessor found idle */
-#define ICSWX_RC_NOT_FOUND 0x2 /* No coprocessor found */
-#define ICSWX_RC_UNDEFINED 0x1 /* Reserved */
-
-extern int acop_handle_fault(struct pt_regs *regs, unsigned long address,
- unsigned long error_code);
-
-static inline u64 acop_copro_type_bit(unsigned int type)
-{
- return 1ULL << (63 - type);
-}
-
-#endif /* !_ARCH_POWERPC_MM_ICSWX_H_ */
diff --git a/arch/powerpc/mm/icswx_pid.c b/arch/powerpc/mm/icswx_pid.c
deleted file mode 100644
index 91e30eb7d054..000000000000
--- a/arch/powerpc/mm/icswx_pid.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * ICSWX and ACOP/PID Management
- *
- * Copyright (C) 2011 Anton Blanchard, IBM Corp. <anton@samba.org>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- */
-
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/spinlock.h>
-#include <linux/idr.h>
-#include <linux/module.h>
-#include "icswx.h"
-
-#define COP_PID_MIN (COP_PID_NONE + 1)
-#define COP_PID_MAX (0xFFFF)
-
-static DEFINE_SPINLOCK(mmu_context_acop_lock);
-static DEFINE_IDA(cop_ida);
-
-static int new_cop_pid(struct ida *ida, int min_id, int max_id,
- spinlock_t *lock)
-{
- int index;
- int err;
-
-again:
- if (!ida_pre_get(ida, GFP_KERNEL))
- return -ENOMEM;
-
- spin_lock(lock);
- err = ida_get_new_above(ida, min_id, &index);
- spin_unlock(lock);
-
- if (err == -EAGAIN)
- goto again;
- else if (err)
- return err;
-
- if (index > max_id) {
- spin_lock(lock);
- ida_remove(ida, index);
- spin_unlock(lock);
- return -ENOMEM;
- }
-
- return index;
-}
-
-int get_cop_pid(struct mm_struct *mm)
-{
- int pid;
-
- if (mm->context.cop_pid == COP_PID_NONE) {
- pid = new_cop_pid(&cop_ida, COP_PID_MIN, COP_PID_MAX,
- &mmu_context_acop_lock);
- if (pid >= 0)
- mm->context.cop_pid = pid;
- }
- return mm->context.cop_pid;
-}
-
-int disable_cop_pid(struct mm_struct *mm)
-{
- int free_pid = COP_PID_NONE;
-
- if ((!mm->context.acop) && (mm->context.cop_pid != COP_PID_NONE)) {
- free_pid = mm->context.cop_pid;
- mm->context.cop_pid = COP_PID_NONE;
- }
- return free_pid;
-}
-
-void free_cop_pid(int free_pid)
-{
- spin_lock(&mmu_context_acop_lock);
- ida_remove(&cop_ida, free_pid);
- spin_unlock(&mmu_context_acop_lock);
-}
diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c
index 8a7c38b8d335..6419b33ca309 100644
--- a/arch/powerpc/mm/init_32.c
+++ b/arch/powerpc/mm/init_32.c
@@ -113,6 +113,12 @@ void __init MMU_setup(void)
__map_without_bats = 1;
__map_without_ltlbs = 1;
}
+#ifdef CONFIG_STRICT_KERNEL_RWX
+ if (rodata_enabled) {
+ __map_without_bats = 1;
+ __map_without_ltlbs = 1;
+ }
+#endif
}
/*
@@ -132,8 +138,6 @@ void __init MMU_init(void)
* Reserve gigantic pages for hugetlb. This MUST occur before
* lowmem_end_addr is initialized below.
*/
- reserve_hugetlb_gpages();
-
if (memblock.memory.cnt > 1) {
#ifndef CONFIG_WII
memblock_enforce_memory_limit(memblock.memory.regions[0].size);
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index ec84b31c6c86..588a521966ec 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -44,6 +44,7 @@
#include <linux/slab.h>
#include <linux/of_fdt.h>
#include <linux/libfdt.h>
+#include <linux/memremap.h>
#include <asm/pgalloc.h>
#include <asm/page.h>
@@ -110,8 +111,29 @@ static int __meminit vmemmap_populated(unsigned long start, int page_size)
return 0;
}
+/*
+ * vmemmap virtual address space management does not have a traditonal page
+ * table to track which virtual struct pages are backed by physical mapping.
+ * The virtual to physical mappings are tracked in a simple linked list
+ * format. 'vmemmap_list' maintains the entire vmemmap physical mapping at
+ * all times where as the 'next' list maintains the available
+ * vmemmap_backing structures which have been deleted from the
+ * 'vmemmap_global' list during system runtime (memory hotplug remove
+ * operation). The freed 'vmemmap_backing' structures are reused later when
+ * new requests come in without allocating fresh memory. This pointer also
+ * tracks the allocated 'vmemmap_backing' structures as we allocate one
+ * full page memory at a time when we dont have any.
+ */
struct vmemmap_backing *vmemmap_list;
static struct vmemmap_backing *next;
+
+/*
+ * The same pointer 'next' tracks individual chunks inside the allocated
+ * full page during the boot time and again tracks the freeed nodes during
+ * runtime. It is racy but it does not happen as they are separated by the
+ * boot process. Will create problem if some how we have memory hotplug
+ * operation during boot !!
+ */
static int num_left;
static int num_freed;
@@ -171,13 +193,17 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node)
pr_debug("vmemmap_populate %lx..%lx, node %d\n", start, end, node);
for (; start < end; start += page_size) {
+ struct vmem_altmap *altmap;
void *p;
int rc;
if (vmemmap_populated(start, page_size))
continue;
- p = vmemmap_alloc_block(page_size, node);
+ /* altmap lookups only work at section boundaries */
+ altmap = to_vmem_altmap(SECTION_ALIGN_DOWN(start));
+
+ p = __vmemmap_alloc_block_buf(page_size, node, altmap);
if (!p)
return -ENOMEM;
@@ -234,13 +260,17 @@ static unsigned long vmemmap_list_free(unsigned long start)
void __ref vmemmap_free(unsigned long start, unsigned long end)
{
unsigned long page_size = 1 << mmu_psize_defs[mmu_vmemmap_psize].shift;
+ unsigned long page_order = get_order(page_size);
start = _ALIGN_DOWN(start, page_size);
pr_debug("vmemmap_free %lx...%lx\n", start, end);
for (; start < end; start += page_size) {
- unsigned long addr;
+ unsigned long nr_pages, addr;
+ struct vmem_altmap *altmap;
+ struct page *section_base;
+ struct page *page;
/*
* the section has already be marked as invalid, so
@@ -251,29 +281,33 @@ void __ref vmemmap_free(unsigned long start, unsigned long end)
continue;
addr = vmemmap_list_free(start);
- if (addr) {
- struct page *page = pfn_to_page(addr >> PAGE_SHIFT);
-
- if (PageReserved(page)) {
- /* allocated from bootmem */
- if (page_size < PAGE_SIZE) {
- /*
- * this shouldn't happen, but if it is
- * the case, leave the memory there
- */
- WARN_ON_ONCE(1);
- } else {
- unsigned int nr_pages =
- 1 << get_order(page_size);
- while (nr_pages--)
- free_reserved_page(page++);
- }
- } else
- free_pages((unsigned long)(__va(addr)),
- get_order(page_size));
-
- vmemmap_remove_mapping(start, page_size);
+ if (!addr)
+ continue;
+
+ page = pfn_to_page(addr >> PAGE_SHIFT);
+ section_base = pfn_to_page(vmemmap_section_start(start));
+ nr_pages = 1 << page_order;
+
+ altmap = to_vmem_altmap((unsigned long) section_base);
+ if (altmap) {
+ vmem_altmap_free(altmap, nr_pages);
+ } else if (PageReserved(page)) {
+ /* allocated from bootmem */
+ if (page_size < PAGE_SIZE) {
+ /*
+ * this shouldn't happen, but if it is
+ * the case, leave the memory there
+ */
+ WARN_ON_ONCE(1);
+ } else {
+ while (nr_pages--)
+ free_reserved_page(page++);
+ }
+ } else {
+ free_pages((unsigned long)(__va(addr)), page_order);
}
+
+ vmemmap_remove_mapping(start, page_size);
}
}
#endif
@@ -322,7 +356,7 @@ struct page *realmode_pfn_to_page(unsigned long pfn)
}
EXPORT_SYMBOL_GPL(realmode_pfn_to_page);
-#elif defined(CONFIG_FLATMEM)
+#else
struct page *realmode_pfn_to_page(unsigned long pfn)
{
@@ -331,7 +365,7 @@ struct page *realmode_pfn_to_page(unsigned long pfn)
}
EXPORT_SYMBOL_GPL(realmode_pfn_to_page);
-#endif /* CONFIG_SPARSEMEM_VMEMMAP/CONFIG_FLATMEM */
+#endif /* CONFIG_SPARSEMEM_VMEMMAP */
#ifdef CONFIG_PPC_STD_MMU_64
static bool disable_radix;
@@ -347,7 +381,7 @@ early_param("disable_radix", parse_disable_radix);
* /chosen/ibm,architecture-vec-5 to see if the hypervisor is willing to do
* radix. If not, we clear the radix feature bit so we fall back to hash.
*/
-static void early_check_vec5(void)
+static void __init early_check_vec5(void)
{
unsigned long root, chosen;
int size;
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 9ee536ec0739..4362b86ef84c 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -36,6 +36,7 @@
#include <linux/hugetlb.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
+#include <linux/memremap.h>
#include <asm/pgalloc.h>
#include <asm/prom.h>
@@ -126,18 +127,14 @@ int __weak remove_section_mapping(unsigned long start, unsigned long end)
return -ENODEV;
}
-int arch_add_memory(int nid, u64 start, u64 size, bool for_device)
+int arch_add_memory(int nid, u64 start, u64 size, bool want_memblock)
{
- struct pglist_data *pgdata;
- struct zone *zone;
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;
int rc;
resize_hpt_for_hotplug(memblock_phys_mem_size());
- pgdata = NODE_DATA(nid);
-
start = (unsigned long)__va(start);
rc = create_section_mapping(start, start + size);
if (rc) {
@@ -147,11 +144,7 @@ int arch_add_memory(int nid, u64 start, u64 size, bool for_device)
return -EFAULT;
}
- /* this should work for most non-highmem platforms */
- zone = pgdata->node_zones +
- zone_for_memory(nid, start, size, 0, for_device);
-
- return __add_pages(nid, zone, start_pfn, nr_pages);
+ return __add_pages(nid, start_pfn, nr_pages, want_memblock);
}
#ifdef CONFIG_MEMORY_HOTREMOVE
@@ -159,11 +152,20 @@ int arch_remove_memory(u64 start, u64 size)
{
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;
- struct zone *zone;
+ struct vmem_altmap *altmap;
+ struct page *page;
int ret;
- zone = page_zone(pfn_to_page(start_pfn));
- ret = __remove_pages(zone, start_pfn, nr_pages);
+ /*
+ * If we have an altmap then we need to skip over any reserved PFNs
+ * when querying the zone.
+ */
+ page = pfn_to_page(start_pfn);
+ altmap = to_vmem_altmap((unsigned long) page);
+ if (altmap)
+ page += vmem_altmap_offset(altmap);
+
+ ret = __remove_pages(page_zone(page), start_pfn, nr_pages);
if (ret)
return ret;
@@ -313,11 +315,11 @@ void __init paging_init(void)
unsigned long end = __fix_to_virt(FIX_HOLE);
for (; v < end; v += PAGE_SIZE)
- map_page(v, 0, 0); /* XXX gross */
+ map_kernel_page(v, 0, 0); /* XXX gross */
#endif
#ifdef CONFIG_HIGHMEM
- map_page(PKMAP_BASE, 0, 0); /* XXX gross */
+ map_kernel_page(PKMAP_BASE, 0, 0); /* XXX gross */
pkmap_page_table = virt_to_kpte(PKMAP_BASE);
kmap_pte = virt_to_kpte(__fix_to_virt(FIX_KMAP_BEGIN));
@@ -400,6 +402,7 @@ void __init mem_init(void)
void free_initmem(void)
{
ppc_md.progress = ppc_printk_progress;
+ mark_initmem_nx();
free_initmem_default(POISON_FREE_INITMEM);
}
@@ -433,7 +436,7 @@ void flush_dcache_icache_page(struct page *page)
return;
}
#endif
-#if defined(CONFIG_8xx) || defined(CONFIG_PPC64)
+#if defined(CONFIG_PPC_8xx) || defined(CONFIG_PPC64)
/* On 8xx there is no need to kmap since highmem is not supported */
__flush_dcache_icache(page_address(page));
#else
diff --git a/arch/powerpc/mm/mmap.c b/arch/powerpc/mm/mmap.c
index 0ee6be4f1ba4..5d78b193fec4 100644
--- a/arch/powerpc/mm/mmap.c
+++ b/arch/powerpc/mm/mmap.c
@@ -34,16 +34,9 @@
/*
* Top of mmap area (just below the process stack).
*
- * Leave at least a ~128 MB hole on 32bit applications.
- *
- * On 64bit applications we randomise the stack by 1GB so we need to
- * space our mmap start address by a further 1GB, otherwise there is a
- * chance the mmap area will end up closer to the stack than our ulimit
- * requires.
+ * Leave at least a ~128 MB hole.
*/
-#define MIN_GAP32 (128*1024*1024)
-#define MIN_GAP64 ((128 + 1024)*1024*1024UL)
-#define MIN_GAP ((is_32bit_task()) ? MIN_GAP32 : MIN_GAP64)
+#define MIN_GAP (128*1024*1024)
#define MAX_GAP (TASK_SIZE/6*5)
static inline int mmap_is_legacy(void)
@@ -71,9 +64,26 @@ unsigned long arch_mmap_rnd(void)
return rnd << PAGE_SHIFT;
}
+static inline unsigned long stack_maxrandom_size(void)
+{
+ if (!(current->flags & PF_RANDOMIZE))
+ return 0;
+
+ /* 8MB for 32bit, 1GB for 64bit */
+ if (is_32bit_task())
+ return (1<<23);
+ else
+ return (1<<30);
+}
+
static inline unsigned long mmap_base(unsigned long rnd)
{
unsigned long gap = rlimit(RLIMIT_STACK);
+ unsigned long pad = stack_maxrandom_size() + stack_guard_gap;
+
+ /* Values close to RLIM_INFINITY can overflow. */
+ if (gap + pad > gap)
+ gap += pad;
if (gap < MIN_GAP)
gap = MIN_GAP;
diff --git a/arch/powerpc/mm/mmu_context.c b/arch/powerpc/mm/mmu_context.c
new file mode 100644
index 000000000000..0f613bc63c50
--- /dev/null
+++ b/arch/powerpc/mm/mmu_context.c
@@ -0,0 +1,99 @@
+/*
+ * Common implementation of switch_mm_irqs_off
+ *
+ * Copyright IBM Corp. 2017
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/mm.h>
+#include <linux/cpu.h>
+
+#include <asm/mmu_context.h>
+
+#if defined(CONFIG_PPC32)
+static inline void switch_mm_pgdir(struct task_struct *tsk,
+ struct mm_struct *mm)
+{
+ /* 32-bit keeps track of the current PGDIR in the thread struct */
+ tsk->thread.pgdir = mm->pgd;
+}
+#elif defined(CONFIG_PPC_BOOK3E_64)
+static inline void switch_mm_pgdir(struct task_struct *tsk,
+ struct mm_struct *mm)
+{
+ /* 64-bit Book3E keeps track of current PGD in the PACA */
+ get_paca()->pgd = mm->pgd;
+}
+#else
+static inline void switch_mm_pgdir(struct task_struct *tsk,
+ struct mm_struct *mm) { }
+#endif
+
+#ifdef CONFIG_PPC_BOOK3S_64
+static inline void inc_mm_active_cpus(struct mm_struct *mm)
+{
+ atomic_inc(&mm->context.active_cpus);
+}
+#else
+static inline void inc_mm_active_cpus(struct mm_struct *mm) { }
+#endif
+
+void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next,
+ struct task_struct *tsk)
+{
+ bool new_on_cpu = false;
+
+ /* Mark this context has been used on the new CPU */
+ if (!cpumask_test_cpu(smp_processor_id(), mm_cpumask(next))) {
+ cpumask_set_cpu(smp_processor_id(), mm_cpumask(next));
+ inc_mm_active_cpus(next);
+
+ /*
+ * This full barrier orders the store to the cpumask above vs
+ * a subsequent operation which allows this CPU to begin loading
+ * translations for next.
+ *
+ * When using the radix MMU that operation is the load of the
+ * MMU context id, which is then moved to SPRN_PID.
+ *
+ * For the hash MMU it is either the first load from slb_cache
+ * in switch_slb(), and/or the store of paca->mm_ctx_id in
+ * copy_mm_to_paca().
+ *
+ * On the read side the barrier is in pte_xchg(), which orders
+ * the store to the PTE vs the load of mm_cpumask.
+ */
+ smp_mb();
+
+ new_on_cpu = true;
+ }
+
+ /* Some subarchs need to track the PGD elsewhere */
+ switch_mm_pgdir(tsk, next);
+
+ /* Nothing else to do if we aren't actually switching */
+ if (prev == next)
+ return;
+
+ /*
+ * We must stop all altivec streams before changing the HW
+ * context
+ */
+ if (cpu_has_feature(CPU_FTR_ALTIVEC))
+ asm volatile ("dssall");
+
+ if (new_on_cpu)
+ radix_kvm_prefetch_workaround(next);
+
+ /*
+ * The actual HW switching method differs between the various
+ * sub architectures. Out of line for now
+ */
+ switch_mmu_context(prev, next, tsk);
+}
+
diff --git a/arch/powerpc/mm/mmu_context_book3s64.c b/arch/powerpc/mm/mmu_context_book3s64.c
index a3edf813d455..05e15386d4cb 100644
--- a/arch/powerpc/mm/mmu_context_book3s64.c
+++ b/arch/powerpc/mm/mmu_context_book3s64.c
@@ -25,8 +25,6 @@
#include <asm/mmu_context.h>
#include <asm/pgalloc.h>
-#include "icswx.h"
-
static DEFINE_SPINLOCK(mmu_context_lock);
static DEFINE_IDA(mmu_context_ida);
@@ -126,9 +124,10 @@ static int hash__init_new_context(struct mm_struct *mm)
static int radix__init_new_context(struct mm_struct *mm)
{
unsigned long rts_field;
- int index;
+ int index, max_id;
- index = alloc_context_id(1, PRTB_ENTRIES - 1);
+ max_id = (1 << mmu_pid_bits) - 1;
+ index = alloc_context_id(mmu_base_pid, max_id);
if (index < 0)
return index;
@@ -138,6 +137,14 @@ static int radix__init_new_context(struct mm_struct *mm)
rts_field = radix__get_tree_size();
process_tb[index].prtb0 = cpu_to_be64(rts_field | __pa(mm->pgd) | RADIX_PGD_INDEX_SIZE);
+ /*
+ * Order the above store with subsequent update of the PID
+ * register (at which point HW can start loading/caching
+ * the entry) and the corresponding load by the MMU from
+ * the L2 cache.
+ */
+ asm volatile("ptesync;isync" : : : "memory");
+
mm->context.npu_context = NULL;
return index;
@@ -156,16 +163,6 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
return index;
mm->context.id = index;
-#ifdef CONFIG_PPC_ICSWX
- mm->context.cop_lockp = kmalloc(sizeof(spinlock_t), GFP_KERNEL);
- if (!mm->context.cop_lockp) {
- __destroy_context(index);
- subpage_prot_free(mm);
- mm->context.id = MMU_NO_CONTEXT;
- return -ENOMEM;
- }
- spin_lock_init(mm->context.cop_lockp);
-#endif /* CONFIG_PPC_ICSWX */
#ifdef CONFIG_PPC_64K_PAGES
mm->context.pte_frag = NULL;
@@ -173,6 +170,8 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
#ifdef CONFIG_SPAPR_TCE_IOMMU
mm_iommu_init(mm);
#endif
+ atomic_set(&mm->context.active_cpus, 0);
+
return 0;
}
@@ -217,15 +216,15 @@ void destroy_context(struct mm_struct *mm)
#ifdef CONFIG_SPAPR_TCE_IOMMU
WARN_ON_ONCE(!list_empty(&mm->context.iommu_group_mem_list));
#endif
-#ifdef CONFIG_PPC_ICSWX
- drop_cop(mm->context.acop, mm);
- kfree(mm->context.cop_lockp);
- mm->context.cop_lockp = NULL;
-#endif /* CONFIG_PPC_ICSWX */
-
- if (radix_enabled())
- process_tb[mm->context.id].prtb1 = 0;
- else
+ if (radix_enabled()) {
+ /*
+ * Radix doesn't have a valid bit in the process table
+ * entries. However we know that at least P9 implementation
+ * will avoid caching an entry with an invalid RTS field,
+ * and 0 is invalid. So this will do.
+ */
+ process_tb[mm->context.id].prtb0 = 0;
+ } else
subpage_prot_free(mm);
destroy_pagetable_page(mm);
__destroy_context(mm->context.id);
@@ -235,10 +234,15 @@ void destroy_context(struct mm_struct *mm)
#ifdef CONFIG_PPC_RADIX_MMU
void radix__switch_mmu_context(struct mm_struct *prev, struct mm_struct *next)
{
- asm volatile("isync": : :"memory");
- mtspr(SPRN_PID, next->context.id);
- asm volatile("isync \n"
- PPC_SLBIA(0x7)
- : : :"memory");
+
+ if (cpu_has_feature(CPU_FTR_POWER9_DD1)) {
+ isync();
+ mtspr(SPRN_PID, next->context.id);
+ isync();
+ asm volatile(PPC_INVALIDATE_ERAT : : :"memory");
+ } else {
+ mtspr(SPRN_PID, next->context.id);
+ isync();
+ }
}
#endif
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
index f988db655e5b..57fbc554c785 100644
--- a/arch/powerpc/mm/mmu_decl.h
+++ b/arch/powerpc/mm/mmu_decl.h
@@ -27,7 +27,7 @@
/*
* On 40x and 8xx, we directly inline tlbia and tlbivax
*/
-#if defined(CONFIG_40x) || defined(CONFIG_8xx)
+#if defined(CONFIG_40x) || defined(CONFIG_PPC_8xx)
static inline void _tlbil_all(void)
{
asm volatile ("sync; tlbia; isync" : : : "memory");
@@ -38,7 +38,7 @@ static inline void _tlbil_pid(unsigned int pid)
}
#define _tlbil_pid_noind(pid) _tlbil_pid(pid)
-#else /* CONFIG_40x || CONFIG_8xx */
+#else /* CONFIG_40x || CONFIG_PPC_8xx */
extern void _tlbil_all(void);
extern void _tlbil_pid(unsigned int pid);
#ifdef CONFIG_PPC_BOOK3E
@@ -46,12 +46,12 @@ extern void _tlbil_pid_noind(unsigned int pid);
#else
#define _tlbil_pid_noind(pid) _tlbil_pid(pid)
#endif
-#endif /* !(CONFIG_40x || CONFIG_8xx) */
+#endif /* !(CONFIG_40x || CONFIG_PPC_8xx) */
/*
* On 8xx, we directly inline tlbie, on others, it's extern
*/
-#ifdef CONFIG_8xx
+#ifdef CONFIG_PPC_8xx
static inline void _tlbil_va(unsigned long address, unsigned int pid,
unsigned int tsize, unsigned int ind)
{
@@ -67,7 +67,7 @@ static inline void _tlbil_va(unsigned long address, unsigned int pid,
{
__tlbil_va(address, pid);
}
-#endif /* CONFIG_8xx */
+#endif /* CONFIG_PPC_8xx */
#if defined(CONFIG_PPC_BOOK3E) || defined(CONFIG_PPC_47x)
extern void _tlbivax_bcast(unsigned long address, unsigned int pid,
@@ -94,7 +94,6 @@ extern void _tlbia(void);
#ifdef CONFIG_PPC32
extern void mapin_ram(void);
-extern int map_page(unsigned long va, phys_addr_t pa, int flags);
extern void setbat(int index, unsigned long virt, phys_addr_t phys,
unsigned int size, pgprot_t prot);
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 371792e4418f..a51df9ef529d 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -1311,8 +1311,10 @@ static int update_lookup_table(void *data)
/*
* Update the node maps and sysfs entries for each cpu whose home node
* has changed. Returns 1 when the topology has changed, and 0 otherwise.
+ *
+ * cpus_locked says whether we already hold cpu_hotplug_lock.
*/
-int arch_update_cpu_topology(void)
+int numa_update_cpu_topology(bool cpus_locked)
{
unsigned int cpu, sibling, changed = 0;
struct topology_update_data *updates, *ud;
@@ -1400,15 +1402,23 @@ int arch_update_cpu_topology(void)
if (!cpumask_weight(&updated_cpus))
goto out;
- stop_machine(update_cpu_topology, &updates[0], &updated_cpus);
+ if (cpus_locked)
+ stop_machine_cpuslocked(update_cpu_topology, &updates[0],
+ &updated_cpus);
+ else
+ stop_machine(update_cpu_topology, &updates[0], &updated_cpus);
/*
* Update the numa-cpu lookup table with the new mappings, even for
* offline CPUs. It is best to perform this update from the stop-
* machine context.
*/
- stop_machine(update_lookup_table, &updates[0],
+ if (cpus_locked)
+ stop_machine_cpuslocked(update_lookup_table, &updates[0],
cpumask_of(raw_smp_processor_id()));
+ else
+ stop_machine(update_lookup_table, &updates[0],
+ cpumask_of(raw_smp_processor_id()));
for (ud = &updates[0]; ud; ud = ud->next) {
unregister_cpu_under_node(ud->cpu, ud->old_nid);
@@ -1426,6 +1436,11 @@ out:
return changed;
}
+int arch_update_cpu_topology(void)
+{
+ return numa_update_cpu_topology(true);
+}
+
static void topology_work_fn(struct work_struct *work)
{
rebuild_sched_domains();
diff --git a/arch/powerpc/mm/pgtable-book3s64.c b/arch/powerpc/mm/pgtable-book3s64.c
index 5fcb3dd74c13..3b65917785a5 100644
--- a/arch/powerpc/mm/pgtable-book3s64.c
+++ b/arch/powerpc/mm/pgtable-book3s64.c
@@ -9,6 +9,7 @@
#include <linux/sched.h>
#include <linux/mm_types.h>
+#include <misc/cxl-base.h>
#include <asm/pgalloc.h>
#include <asm/tlb.h>
@@ -32,7 +33,7 @@ int pmdp_set_access_flags(struct vm_area_struct *vma, unsigned long address,
{
int changed;
#ifdef CONFIG_DEBUG_VM
- WARN_ON(!pmd_trans_huge(*pmdp));
+ WARN_ON(!pmd_trans_huge(*pmdp) && !pmd_devmap(*pmdp));
assert_spin_locked(&vma->vm_mm->page_table_lock);
#endif
changed = !pmd_same(*(pmdp), entry);
@@ -59,11 +60,32 @@ void set_pmd_at(struct mm_struct *mm, unsigned long addr,
#ifdef CONFIG_DEBUG_VM
WARN_ON(pte_present(pmd_pte(*pmdp)) && !pte_protnone(pmd_pte(*pmdp)));
assert_spin_locked(&mm->page_table_lock);
- WARN_ON(!pmd_trans_huge(pmd));
+ WARN_ON(!(pmd_trans_huge(pmd) || pmd_devmap(pmd)));
#endif
trace_hugepage_set_pmd(addr, pmd_val(pmd));
return set_pte_at(mm, addr, pmdp_ptep(pmdp), pmd_pte(pmd));
}
+
+static void do_nothing(void *unused)
+{
+
+}
+/*
+ * Serialize against find_current_mm_pte which does lock-less
+ * lookup in page tables with local interrupts disabled. For huge pages
+ * it casts pmd_t to pte_t. Since format of pte_t is different from
+ * pmd_t we want to prevent transit from pmd pointing to page table
+ * to pmd pointing to huge page (and back) while interrupts are disabled.
+ * We clear pmd to possibly replace it with page table pointer in
+ * different code paths. So make sure we wait for the parallel
+ * find_current_mm_pte to finish.
+ */
+void serialize_against_pte_lookup(struct mm_struct *mm)
+{
+ smp_mb();
+ smp_call_function_many(mm_cpumask(mm), do_nothing, NULL, 1);
+}
+
/*
* We use this to invalidate a pmdp entry before switching from a
* hugepte to regular pmd entry.
@@ -77,7 +99,7 @@ void pmdp_invalidate(struct vm_area_struct *vma, unsigned long address,
* This ensures that generic code that rely on IRQ disabling
* to prevent a parallel THP split work as expected.
*/
- kick_all_cpus_sync();
+ serialize_against_pte_lookup(vma->vm_mm);
}
static pmd_t pmd_set_protbits(pmd_t pmd, pgprot_t pgprot)
diff --git a/arch/powerpc/mm/pgtable-hash64.c b/arch/powerpc/mm/pgtable-hash64.c
index 8b85a14b08ea..ec277913e01b 100644
--- a/arch/powerpc/mm/pgtable-hash64.c
+++ b/arch/powerpc/mm/pgtable-hash64.c
@@ -11,8 +11,12 @@
#include <linux/sched.h>
#include <linux/mm_types.h>
+#include <linux/mm.h>
#include <asm/pgalloc.h>
+#include <asm/pgtable.h>
+#include <asm/sections.h>
+#include <asm/mmu.h>
#include <asm/tlb.h>
#include "mmu_decl.h"
@@ -22,6 +26,81 @@
#ifdef CONFIG_SPARSEMEM_VMEMMAP
/*
+ * vmemmap is the starting address of the virtual address space where
+ * struct pages are allocated for all possible PFNs present on the system
+ * including holes and bad memory (hence sparse). These virtual struct
+ * pages are stored in sequence in this virtual address space irrespective
+ * of the fact whether the corresponding PFN is valid or not. This achieves
+ * constant relationship between address of struct page and its PFN.
+ *
+ * During boot or memory hotplug operation when a new memory section is
+ * added, physical memory allocation (including hash table bolting) will
+ * be performed for the set of struct pages which are part of the memory
+ * section. This saves memory by not allocating struct pages for PFNs
+ * which are not valid.
+ *
+ * ----------------------------------------------
+ * | PHYSICAL ALLOCATION OF VIRTUAL STRUCT PAGES|
+ * ----------------------------------------------
+ *
+ * f000000000000000 c000000000000000
+ * vmemmap +--------------+ +--------------+
+ * + | page struct | +--------------> | page struct |
+ * | +--------------+ +--------------+
+ * | | page struct | +--------------> | page struct |
+ * | +--------------+ | +--------------+
+ * | | page struct | + +------> | page struct |
+ * | +--------------+ | +--------------+
+ * | | page struct | | +--> | page struct |
+ * | +--------------+ | | +--------------+
+ * | | page struct | | |
+ * | +--------------+ | |
+ * | | page struct | | |
+ * | +--------------+ | |
+ * | | page struct | | |
+ * | +--------------+ | |
+ * | | page struct | | |
+ * | +--------------+ | |
+ * | | page struct | +-------+ |
+ * | +--------------+ |
+ * | | page struct | +-----------+
+ * | +--------------+
+ * | | page struct | No mapping
+ * | +--------------+
+ * | | page struct | No mapping
+ * v +--------------+
+ *
+ * -----------------------------------------
+ * | RELATION BETWEEN STRUCT PAGES AND PFNS|
+ * -----------------------------------------
+ *
+ * vmemmap +--------------+ +---------------+
+ * + | page struct | +-------------> | PFN |
+ * | +--------------+ +---------------+
+ * | | page struct | +-------------> | PFN |
+ * | +--------------+ +---------------+
+ * | | page struct | +-------------> | PFN |
+ * | +--------------+ +---------------+
+ * | | page struct | +-------------> | PFN |
+ * | +--------------+ +---------------+
+ * | | |
+ * | +--------------+
+ * | | |
+ * | +--------------+
+ * | | |
+ * | +--------------+ +---------------+
+ * | | page struct | +-------------> | PFN |
+ * | +--------------+ +---------------+
+ * | | |
+ * | +--------------+
+ * | | |
+ * | +--------------+ +---------------+
+ * | | page struct | +-------------> | PFN |
+ * | +--------------+ +---------------+
+ * | | page struct | +-------------> | PFN |
+ * v +--------------+ +---------------+
+ */
+/*
* On hash-based CPUs, the vmemmap is bolted in the hash table.
*
*/
@@ -109,7 +188,7 @@ unsigned long hash__pmd_hugepage_update(struct mm_struct *mm, unsigned long addr
unsigned long old;
#ifdef CONFIG_DEBUG_VM
- WARN_ON(!pmd_trans_huge(*pmdp));
+ WARN_ON(!hash__pmd_trans_huge(*pmdp) && !pmd_devmap(*pmdp));
assert_spin_locked(&mm->page_table_lock);
#endif
@@ -141,6 +220,7 @@ pmd_t hash__pmdp_collapse_flush(struct vm_area_struct *vma, unsigned long addres
VM_BUG_ON(address & ~HPAGE_PMD_MASK);
VM_BUG_ON(pmd_trans_huge(*pmdp));
+ VM_BUG_ON(pmd_devmap(*pmdp));
pmd = *pmdp;
pmd_clear(pmdp);
@@ -159,7 +239,7 @@ pmd_t hash__pmdp_collapse_flush(struct vm_area_struct *vma, unsigned long addres
* by sending an IPI to all the cpus and executing a dummy
* function there.
*/
- kick_all_cpus_sync();
+ serialize_against_pte_lookup(vma->vm_mm);
/*
* Now invalidate the hpte entries in the range
* covered by pmd. This make sure we take a
@@ -221,6 +301,7 @@ void hash__pmdp_huge_split_prepare(struct vm_area_struct *vma,
{
VM_BUG_ON(address & ~HPAGE_PMD_MASK);
VM_BUG_ON(REGION_ID(address) != USER_REGION_ID);
+ VM_BUG_ON(pmd_devmap(*pmdp));
/*
* We can't mark the pmd none here, because that will cause a race
@@ -248,7 +329,6 @@ void hpte_do_hugepage_flush(struct mm_struct *mm, unsigned long addr,
unsigned int psize;
unsigned long vsid;
unsigned long flags = 0;
- const struct cpumask *tmp;
/* get the base page size,vsid and segment size */
#ifdef CONFIG_DEBUG_VM
@@ -269,8 +349,7 @@ void hpte_do_hugepage_flush(struct mm_struct *mm, unsigned long addr,
ssize = mmu_kernel_ssize;
}
- tmp = cpumask_of(smp_processor_id());
- if (cpumask_equal(mm_cpumask(mm), tmp))
+ if (mm_is_thread_local(mm))
flags |= HPTE_LOCAL_UPDATE;
return flush_hash_hugepage(vsid, addr, pmdp, psize, ssize, flags);
@@ -299,16 +378,16 @@ pmd_t hash__pmdp_huge_get_and_clear(struct mm_struct *mm,
*/
memset(pgtable, 0, PTE_FRAG_SIZE);
/*
- * Serialize against find_linux_pte_or_hugepte which does lock-less
+ * Serialize against find_current_mm_pte variants which does lock-less
* lookup in page tables with local interrupts disabled. For huge pages
* it casts pmd_t to pte_t. Since format of pte_t is different from
* pmd_t we want to prevent transit from pmd pointing to page table
* to pmd pointing to huge page (and back) while interrupts are disabled.
* We clear pmd to possibly replace it with page table pointer in
* different code paths. So make sure we wait for the parallel
- * find_linux_pte_or_hugepage to finish.
+ * find_curren_mm_pte to finish.
*/
- kick_all_cpus_sync();
+ serialize_against_pte_lookup(mm);
return old_pmd;
}
@@ -342,3 +421,53 @@ int hash__has_transparent_hugepage(void)
return 1;
}
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
+
+#ifdef CONFIG_STRICT_KERNEL_RWX
+static bool hash__change_memory_range(unsigned long start, unsigned long end,
+ unsigned long newpp)
+{
+ unsigned long idx;
+ unsigned int step, shift;
+
+ shift = mmu_psize_defs[mmu_linear_psize].shift;
+ step = 1 << shift;
+
+ start = ALIGN_DOWN(start, step);
+ end = ALIGN(end, step); // aligns up
+
+ if (start >= end)
+ return false;
+
+ pr_debug("Changing page protection on range 0x%lx-0x%lx, to 0x%lx, step 0x%x\n",
+ start, end, newpp, step);
+
+ for (idx = start; idx < end; idx += step)
+ /* Not sure if we can do much with the return value */
+ mmu_hash_ops.hpte_updateboltedpp(newpp, idx, mmu_linear_psize,
+ mmu_kernel_ssize);
+
+ return true;
+}
+
+void hash__mark_rodata_ro(void)
+{
+ unsigned long start, end;
+
+ start = (unsigned long)_stext;
+ end = (unsigned long)__init_begin;
+
+ WARN_ON(!hash__change_memory_range(start, end, PP_RXXX));
+}
+
+void hash__mark_initmem_nx(void)
+{
+ unsigned long start, end, pp;
+
+ start = (unsigned long)__init_begin;
+ end = (unsigned long)__init_end;
+
+ pp = htab_convert_pte_flags(pgprot_val(PAGE_KERNEL));
+
+ WARN_ON(!hash__change_memory_range(start, end, pp));
+}
+#endif
diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c
index c28165d8970b..39c252b54d16 100644
--- a/arch/powerpc/mm/pgtable-radix.c
+++ b/arch/powerpc/mm/pgtable-radix.c
@@ -8,9 +8,15 @@
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
+
+#define pr_fmt(fmt) "radix-mmu: " fmt
+
+#include <linux/kernel.h>
#include <linux/sched/mm.h>
#include <linux/memblock.h>
#include <linux/of_fdt.h>
+#include <linux/mm.h>
+#include <linux/string_helpers.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
@@ -19,15 +25,24 @@
#include <asm/mmu.h>
#include <asm/firmware.h>
#include <asm/powernv.h>
+#include <asm/sections.h>
+#include <asm/trace.h>
#include <trace/events/thp.h>
+unsigned int mmu_pid_bits;
+unsigned int mmu_base_pid;
+
static int native_register_process_table(unsigned long base, unsigned long pg_sz,
unsigned long table_size)
{
- unsigned long patb1 = base | table_size | PATB_GR;
+ unsigned long patb0, patb1;
+
+ patb0 = be64_to_cpu(partition_tb[0].patb0);
+ patb1 = base | table_size | PATB_GR;
+
+ mmu_partition_table_set_entry(0, patb0, patb1);
- partition_tb->patb1 = cpu_to_be64(patb1);
return 0;
}
@@ -108,20 +123,92 @@ set_the_pte:
return 0;
}
+#ifdef CONFIG_STRICT_KERNEL_RWX
+void radix__change_memory_range(unsigned long start, unsigned long end,
+ unsigned long clear)
+{
+ unsigned long idx;
+ pgd_t *pgdp;
+ pud_t *pudp;
+ pmd_t *pmdp;
+ pte_t *ptep;
+
+ start = ALIGN_DOWN(start, PAGE_SIZE);
+ end = PAGE_ALIGN(end); // aligns up
+
+ pr_debug("Changing flags on range %lx-%lx removing 0x%lx\n",
+ start, end, clear);
+
+ for (idx = start; idx < end; idx += PAGE_SIZE) {
+ pgdp = pgd_offset_k(idx);
+ pudp = pud_alloc(&init_mm, pgdp, idx);
+ if (!pudp)
+ continue;
+ if (pud_huge(*pudp)) {
+ ptep = (pte_t *)pudp;
+ goto update_the_pte;
+ }
+ pmdp = pmd_alloc(&init_mm, pudp, idx);
+ if (!pmdp)
+ continue;
+ if (pmd_huge(*pmdp)) {
+ ptep = pmdp_ptep(pmdp);
+ goto update_the_pte;
+ }
+ ptep = pte_alloc_kernel(pmdp, idx);
+ if (!ptep)
+ continue;
+update_the_pte:
+ radix__pte_update(&init_mm, idx, ptep, clear, 0, 0);
+ }
+
+ radix__flush_tlb_kernel_range(start, end);
+}
+
+void radix__mark_rodata_ro(void)
+{
+ unsigned long start, end;
+
+ start = (unsigned long)_stext;
+ end = (unsigned long)__init_begin;
+
+ radix__change_memory_range(start, end, _PAGE_WRITE);
+}
+
+void radix__mark_initmem_nx(void)
+{
+ unsigned long start = (unsigned long)__init_begin;
+ unsigned long end = (unsigned long)__init_end;
+
+ radix__change_memory_range(start, end, _PAGE_EXEC);
+}
+#endif /* CONFIG_STRICT_KERNEL_RWX */
+
static inline void __meminit print_mapping(unsigned long start,
unsigned long end,
unsigned long size)
{
+ char buf[10];
+
if (end <= start)
return;
- pr_info("Mapped range 0x%lx - 0x%lx with 0x%lx\n", start, end, size);
+ string_get_size(size, 1, STRING_UNITS_2, buf, sizeof(buf));
+
+ pr_info("Mapped 0x%016lx-0x%016lx with %s pages\n", start, end, buf);
}
static int __meminit create_physical_mapping(unsigned long start,
unsigned long end)
{
- unsigned long addr, mapping_size = 0;
+ unsigned long vaddr, addr, mapping_size = 0;
+ pgprot_t prot;
+ unsigned long max_mapping_size;
+#ifdef CONFIG_STRICT_KERNEL_RWX
+ int split_text_mapping = 1;
+#else
+ int split_text_mapping = 0;
+#endif
start = _ALIGN_UP(start, PAGE_SIZE);
for (addr = start; addr < end; addr += mapping_size) {
@@ -130,9 +217,12 @@ static int __meminit create_physical_mapping(unsigned long start,
gap = end - addr;
previous_size = mapping_size;
+ max_mapping_size = PUD_SIZE;
+retry:
if (IS_ALIGNED(addr, PUD_SIZE) && gap >= PUD_SIZE &&
- mmu_psize_defs[MMU_PAGE_1G].shift)
+ mmu_psize_defs[MMU_PAGE_1G].shift &&
+ PUD_SIZE <= max_mapping_size)
mapping_size = PUD_SIZE;
else if (IS_ALIGNED(addr, PMD_SIZE) && gap >= PMD_SIZE &&
mmu_psize_defs[MMU_PAGE_2M].shift)
@@ -140,13 +230,32 @@ static int __meminit create_physical_mapping(unsigned long start,
else
mapping_size = PAGE_SIZE;
+ if (split_text_mapping && (mapping_size == PUD_SIZE) &&
+ (addr <= __pa_symbol(__init_begin)) &&
+ (addr + mapping_size) >= __pa_symbol(_stext)) {
+ max_mapping_size = PMD_SIZE;
+ goto retry;
+ }
+
+ if (split_text_mapping && (mapping_size == PMD_SIZE) &&
+ (addr <= __pa_symbol(__init_begin)) &&
+ (addr + mapping_size) >= __pa_symbol(_stext))
+ mapping_size = PAGE_SIZE;
+
if (mapping_size != previous_size) {
print_mapping(start, addr, previous_size);
start = addr;
}
- rc = radix__map_kernel_page((unsigned long)__va(addr), addr,
- PAGE_KERNEL_X, mapping_size);
+ vaddr = (unsigned long)__va(addr);
+
+ if (overlaps_kernel_text(vaddr, vaddr + mapping_size) ||
+ overlaps_interrupt_vector_text(vaddr, vaddr + mapping_size))
+ prot = PAGE_KERNEL_X;
+ else
+ prot = PAGE_KERNEL;
+
+ rc = radix__map_kernel_page(vaddr, addr, prot, mapping_size);
if (rc)
return rc;
}
@@ -168,11 +277,34 @@ static void __init radix_init_pgtable(void)
for_each_memblock(memory, reg)
WARN_ON(create_physical_mapping(reg->base,
reg->base + reg->size));
+
+ /* Find out how many PID bits are supported */
+ if (cpu_has_feature(CPU_FTR_HVMODE)) {
+ if (!mmu_pid_bits)
+ mmu_pid_bits = 20;
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+ /*
+ * When KVM is possible, we only use the top half of the
+ * PID space to avoid collisions between host and guest PIDs
+ * which can cause problems due to prefetch when exiting the
+ * guest with AIL=3
+ */
+ mmu_base_pid = 1 << (mmu_pid_bits - 1);
+#else
+ mmu_base_pid = 1;
+#endif
+ } else {
+ /* The guest uses the bottom half of the PID space */
+ if (!mmu_pid_bits)
+ mmu_pid_bits = 19;
+ mmu_base_pid = 1;
+ }
+
/*
* Allocate Partition table and process table for the
* host.
*/
- BUILD_BUG_ON_MSG((PRTB_SIZE_SHIFT > 36), "Process table size too large.");
+ BUG_ON(PRTB_SIZE_SHIFT > 36);
process_tb = early_alloc_pgtable(1UL << PRTB_SIZE_SHIFT);
/*
* Fill in the process table.
@@ -190,6 +322,7 @@ static void __init radix_init_pgtable(void)
asm volatile(PPC_TLBIE_5(%0,%1,2,1,1) : :
"r" (TLBIEL_INVAL_SET_LPID), "r" (0));
asm volatile("eieio; tlbsync; ptesync" : : : "memory");
+ trace_tlbie(0, 0, TLBIEL_INVAL_SET_LPID, 0, 2, 1, 1);
}
static void __init radix_init_partition_table(void)
@@ -245,6 +378,12 @@ static int __init radix_dt_scan_page_sizes(unsigned long node,
if (type == NULL || strcmp(type, "cpu") != 0)
return 0;
+ /* Find MMU PID size */
+ prop = of_get_flat_dt_prop(node, "ibm,mmu-pid-bits", &size);
+ if (prop && size == 4)
+ mmu_pid_bits = be32_to_cpup(prop);
+
+ /* Grab page size encodings */
prop = of_get_flat_dt_prop(node, "ibm,processor-radix-AP-encodings", &size);
if (!prop)
return 0;
@@ -316,6 +455,9 @@ static void update_hid_for_radix(void)
asm volatile(PPC_TLBIE_5(%0, %4, %3, %2, %1)
: : "r"(rb), "i"(1), "i"(1), "i"(2), "r"(0) : "memory");
asm volatile("eieio; tlbsync; ptesync; isync; slbia": : :"memory");
+ trace_tlbie(0, 0, rb, 0, 2, 0, 1);
+ trace_tlbie(0, 0, rb, 0, 2, 1, 1);
+
/*
* now switch the HID
*/
@@ -397,6 +539,7 @@ void __init radix__early_init_mmu(void)
__kernel_virt_size = RADIX_KERN_VIRT_SIZE;
__vmalloc_start = RADIX_VMALLOC_START;
__vmalloc_end = RADIX_VMALLOC_END;
+ __kernel_io_start = RADIX_KERN_IO_START;
vmemmap = (struct page *)RADIX_VMEMMAP_BASE;
ioremap_bot = IOREMAP_BASE;
@@ -683,7 +826,7 @@ unsigned long radix__pmd_hugepage_update(struct mm_struct *mm, unsigned long add
unsigned long old;
#ifdef CONFIG_DEBUG_VM
- WARN_ON(!radix__pmd_trans_huge(*pmdp));
+ WARN_ON(!radix__pmd_trans_huge(*pmdp) && !pmd_devmap(*pmdp));
assert_spin_locked(&mm->page_table_lock);
#endif
@@ -701,14 +844,18 @@ pmd_t radix__pmdp_collapse_flush(struct vm_area_struct *vma, unsigned long addre
VM_BUG_ON(address & ~HPAGE_PMD_MASK);
VM_BUG_ON(radix__pmd_trans_huge(*pmdp));
+ VM_BUG_ON(pmd_devmap(*pmdp));
/*
* khugepaged calls this for normal pmd
*/
pmd = *pmdp;
pmd_clear(pmdp);
+
/*FIXME!! Verify whether we need this kick below */
- kick_all_cpus_sync();
- flush_tlb_range(vma, address, address + HPAGE_PMD_SIZE);
+ serialize_against_pte_lookup(vma->vm_mm);
+
+ radix__flush_tlb_collapsed_pmd(vma->vm_mm, address);
+
return pmd;
}
@@ -767,16 +914,16 @@ pmd_t radix__pmdp_huge_get_and_clear(struct mm_struct *mm,
old = radix__pmd_hugepage_update(mm, addr, pmdp, ~0UL, 0);
old_pmd = __pmd(old);
/*
- * Serialize against find_linux_pte_or_hugepte which does lock-less
+ * Serialize against find_current_mm_pte which does lock-less
* lookup in page tables with local interrupts disabled. For huge pages
* it casts pmd_t to pte_t. Since format of pte_t is different from
* pmd_t we want to prevent transit from pmd pointing to page table
* to pmd pointing to huge page (and back) while interrupts are disabled.
* We clear pmd to possibly replace it with page table pointer in
* different code paths. So make sure we wait for the parallel
- * find_linux_pte_or_hugepage to finish.
+ * find_current_mm_pte to finish.
*/
- kick_all_cpus_sync();
+ serialize_against_pte_lookup(mm);
return old_pmd;
}
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index a65c0b4c0669..f6c7f54c0515 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -34,6 +34,7 @@
#include <asm/fixmap.h>
#include <asm/io.h>
#include <asm/setup.h>
+#include <asm/sections.h>
#include "mmu_decl.h"
@@ -60,7 +61,7 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
{
struct page *ptepage;
- gfp_t flags = GFP_KERNEL | __GFP_ZERO;
+ gfp_t flags = GFP_KERNEL | __GFP_ZERO | __GFP_ACCOUNT;
ptepage = alloc_pages(flags, 0);
if (!ptepage)
@@ -189,7 +190,7 @@ __ioremap_caller(phys_addr_t addr, unsigned long size, unsigned long flags,
err = 0;
for (i = 0; i < size && err == 0; i += PAGE_SIZE)
- err = map_page(v+i, p+i, flags);
+ err = map_kernel_page(v+i, p+i, flags);
if (err) {
if (slab_is_available())
vunmap((void *)v);
@@ -215,7 +216,7 @@ void iounmap(volatile void __iomem *addr)
}
EXPORT_SYMBOL(iounmap);
-int map_page(unsigned long va, phys_addr_t pa, int flags)
+int map_kernel_page(unsigned long va, phys_addr_t pa, int flags)
{
pmd_t *pd;
pte_t *pg;
@@ -242,7 +243,7 @@ int map_page(unsigned long va, phys_addr_t pa, int flags)
/*
* Map in a chunk of physical memory starting at start.
*/
-void __init __mapin_ram_chunk(unsigned long offset, unsigned long top)
+static void __init __mapin_ram_chunk(unsigned long offset, unsigned long top)
{
unsigned long v, s, f;
phys_addr_t p;
@@ -255,7 +256,7 @@ void __init __mapin_ram_chunk(unsigned long offset, unsigned long top)
ktext = ((char *)v >= _stext && (char *)v < etext) ||
((char *)v >= _sinittext && (char *)v < _einittext);
f = ktext ? pgprot_val(PAGE_KERNEL_TEXT) : pgprot_val(PAGE_KERNEL);
- map_page(v, p, f);
+ map_kernel_page(v, p, f);
#ifdef CONFIG_PPC_STD_MMU_32
if (ktext)
hash_preload(&init_mm, v, 0, 0x300);
@@ -294,7 +295,7 @@ void __init mapin_ram(void)
* Returns true (1) if PTE was found, zero otherwise. The pointer to
* the PTE pointer is unmodified if PTE is not found.
*/
-int
+static int
get_pteptr(struct mm_struct *mm, unsigned long addr, pte_t **ptep, pmd_t **pmdp)
{
pgd_t *pgd;
@@ -323,9 +324,7 @@ get_pteptr(struct mm_struct *mm, unsigned long addr, pte_t **ptep, pmd_t **pmdp)
return(retval);
}
-#ifdef CONFIG_DEBUG_PAGEALLOC
-
-static int __change_page_attr(struct page *page, pgprot_t prot)
+static int __change_page_attr_noflush(struct page *page, pgprot_t prot)
{
pte_t *kpte;
pmd_t *kpmd;
@@ -339,8 +338,6 @@ static int __change_page_attr(struct page *page, pgprot_t prot)
if (!get_pteptr(&init_mm, address, &kpte, &kpmd))
return -EINVAL;
__set_pte_at(&init_mm, address, kpte, mk_pte(page, prot), 0);
- wmb();
- flush_tlb_page(NULL, address);
pte_unmap(kpte);
return 0;
@@ -349,49 +346,65 @@ static int __change_page_attr(struct page *page, pgprot_t prot)
/*
* Change the page attributes of an page in the linear mapping.
*
- * THIS CONFLICTS WITH BAT MAPPINGS, DEBUG USE ONLY
+ * THIS DOES NOTHING WITH BAT MAPPINGS, DEBUG USE ONLY
*/
static int change_page_attr(struct page *page, int numpages, pgprot_t prot)
{
int i, err = 0;
unsigned long flags;
+ struct page *start = page;
local_irq_save(flags);
for (i = 0; i < numpages; i++, page++) {
- err = __change_page_attr(page, prot);
+ err = __change_page_attr_noflush(page, prot);
if (err)
break;
}
+ wmb();
local_irq_restore(flags);
+ flush_tlb_kernel_range((unsigned long)page_address(start),
+ (unsigned long)page_address(page));
return err;
}
-
-void __kernel_map_pages(struct page *page, int numpages, int enable)
+void mark_initmem_nx(void)
{
- if (PageHighMem(page))
- return;
+ struct page *page = virt_to_page(_sinittext);
+ unsigned long numpages = PFN_UP((unsigned long)_einittext) -
+ PFN_DOWN((unsigned long)_sinittext);
- change_page_attr(page, numpages, enable ? PAGE_KERNEL : __pgprot(0));
+ change_page_attr(page, numpages, PAGE_KERNEL);
}
-#endif /* CONFIG_DEBUG_PAGEALLOC */
-
-static int fixmaps;
-void __set_fixmap (enum fixed_addresses idx, phys_addr_t phys, pgprot_t flags)
+#ifdef CONFIG_STRICT_KERNEL_RWX
+void mark_rodata_ro(void)
{
- unsigned long address = __fix_to_virt(idx);
+ struct page *page;
+ unsigned long numpages;
- if (idx >= __end_of_fixed_addresses) {
- BUG();
- return;
- }
+ page = virt_to_page(_stext);
+ numpages = PFN_UP((unsigned long)_etext) -
+ PFN_DOWN((unsigned long)_stext);
+
+ change_page_attr(page, numpages, PAGE_KERNEL_ROX);
+ /*
+ * mark .rodata as read only. Use __init_begin rather than __end_rodata
+ * to cover NOTES and EXCEPTION_TABLE.
+ */
+ page = virt_to_page(__start_rodata);
+ numpages = PFN_UP((unsigned long)__init_begin) -
+ PFN_DOWN((unsigned long)__start_rodata);
- map_page(address, phys, pgprot_val(flags));
- fixmaps++;
+ change_page_attr(page, numpages, PAGE_KERNEL_RO);
}
+#endif
-void __this_fixmap_does_not_exist(void)
+#ifdef CONFIG_DEBUG_PAGEALLOC
+void __kernel_map_pages(struct page *page, int numpages, int enable)
{
- WARN_ON(1);
+ if (PageHighMem(page))
+ return;
+
+ change_page_attr(page, numpages, enable ? PAGE_KERNEL : __pgprot(0));
}
+#endif /* CONFIG_DEBUG_PAGEALLOC */
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index db93cf747a03..ac0717a90ca6 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -47,6 +47,7 @@
#include <asm/smp.h>
#include <asm/machdep.h>
#include <asm/tlb.h>
+#include <asm/trace.h>
#include <asm/processor.h>
#include <asm/cputable.h>
#include <asm/sections.h>
@@ -103,6 +104,8 @@ unsigned long __vmalloc_start;
EXPORT_SYMBOL(__vmalloc_start);
unsigned long __vmalloc_end;
EXPORT_SYMBOL(__vmalloc_end);
+unsigned long __kernel_io_start;
+EXPORT_SYMBOL(__kernel_io_start);
struct page *vmemmap;
EXPORT_SYMBOL(vmemmap);
unsigned long __pte_frag_nr;
@@ -323,7 +326,7 @@ struct page *pud_page(pud_t pud)
*/
struct page *pmd_page(pmd_t pmd)
{
- if (pmd_trans_huge(pmd) || pmd_huge(pmd))
+ if (pmd_trans_huge(pmd) || pmd_huge(pmd) || pmd_devmap(pmd))
return pte_page(pmd_pte(pmd));
return virt_to_page(pmd_page_vaddr(pmd));
}
@@ -351,12 +354,20 @@ static pte_t *get_from_cache(struct mm_struct *mm)
static pte_t *__alloc_for_cache(struct mm_struct *mm, int kernel)
{
void *ret = NULL;
- struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO);
- if (!page)
- return NULL;
- if (!kernel && !pgtable_page_ctor(page)) {
- __free_page(page);
- return NULL;
+ struct page *page;
+
+ if (!kernel) {
+ page = alloc_page(PGALLOC_GFP | __GFP_ACCOUNT);
+ if (!page)
+ return NULL;
+ if (!pgtable_page_ctor(page)) {
+ __free_page(page);
+ return NULL;
+ }
+ } else {
+ page = alloc_page(PGALLOC_GFP);
+ if (!page)
+ return NULL;
}
ret = page_address(page);
@@ -469,13 +480,39 @@ void mmu_partition_table_set_entry(unsigned int lpid, unsigned long dw0,
* use of this partition ID was, not the new use.
*/
asm volatile("ptesync" : : : "memory");
- if (old & PATB_HR)
+ if (old & PATB_HR) {
asm volatile(PPC_TLBIE_5(%0,%1,2,0,1) : :
"r" (TLBIEL_INVAL_SET_LPID), "r" (lpid));
- else
+ trace_tlbie(lpid, 0, TLBIEL_INVAL_SET_LPID, lpid, 2, 0, 1);
+ } else {
asm volatile(PPC_TLBIE_5(%0,%1,2,0,0) : :
"r" (TLBIEL_INVAL_SET_LPID), "r" (lpid));
+ trace_tlbie(lpid, 0, TLBIEL_INVAL_SET_LPID, lpid, 2, 0, 0);
+ }
asm volatile("eieio; tlbsync; ptesync" : : : "memory");
}
EXPORT_SYMBOL_GPL(mmu_partition_table_set_entry);
#endif /* CONFIG_PPC_BOOK3S_64 */
+
+#ifdef CONFIG_STRICT_KERNEL_RWX
+void mark_rodata_ro(void)
+{
+ if (!mmu_has_feature(MMU_FTR_KERNEL_RO)) {
+ pr_warn("Warning: Unable to mark rodata read only on this CPU.\n");
+ return;
+ }
+
+ if (radix_enabled())
+ radix__mark_rodata_ro();
+ else
+ hash__mark_rodata_ro();
+}
+
+void mark_initmem_nx(void)
+{
+ if (radix_enabled())
+ radix__mark_initmem_nx();
+ else
+ hash__mark_initmem_nx();
+}
+#endif
diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c
index 654a0d7ba0e7..13cfe413b40d 100644
--- a/arch/powerpc/mm/slb.c
+++ b/arch/powerpc/mm/slb.c
@@ -33,15 +33,7 @@ enum slb_index {
KSTACK_INDEX = 2, /* Kernel stack map */
};
-extern void slb_allocate_realmode(unsigned long ea);
-
-static void slb_allocate(unsigned long ea)
-{
- /* Currently, we do real mode for all SLBs including user, but
- * that will change if we bring back dynamic VSIDs
- */
- slb_allocate_realmode(ea);
-}
+extern void slb_allocate(unsigned long ea);
#define slb_esid_mask(ssize) \
(((ssize) == MMU_SEGSIZE_256M)? ESID_MASK: ESID_MASK_1T)
diff --git a/arch/powerpc/mm/slb_low.S b/arch/powerpc/mm/slb_low.S
index 1519617aab36..906a86fe457b 100644
--- a/arch/powerpc/mm/slb_low.S
+++ b/arch/powerpc/mm/slb_low.S
@@ -65,14 +65,15 @@ MMU_FTR_SECTION_ELSE \
ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_68_BIT_VA)
-/* void slb_allocate_realmode(unsigned long ea);
+/* void slb_allocate(unsigned long ea);
*
* Create an SLB entry for the given EA (user or kernel).
* r3 = faulting address, r13 = PACA
* r9, r10, r11 are clobbered by this function
+ * r3 is preserved.
* No other registers are examined or changed.
*/
-_GLOBAL(slb_allocate_realmode)
+_GLOBAL(slb_allocate)
/*
* check for bad kernel/user address
* (ea & ~REGION_MASK) >= PGTABLE_RANGE
@@ -120,12 +121,25 @@ slb_miss_kernel_load_vmemmap:
1:
#endif /* CONFIG_SPARSEMEM_VMEMMAP */
- /* vmalloc mapping gets the encoding from the PACA as the mapping
- * can be demoted from 64K -> 4K dynamically on some machines
+ /*
+ * r10 contains the ESID, which is the original faulting EA shifted
+ * right by 28 bits. We need to compare that with (H_VMALLOC_END >> 28)
+ * which is 0xd00038000. That can't be used as an immediate, even if we
+ * ignored the 0xd, so we have to load it into a register, and we only
+ * have one register free. So we must load all of (H_VMALLOC_END >> 28)
+ * into a register and compare ESID against that.
+ */
+ lis r11,(H_VMALLOC_END >> 32)@h // r11 = 0xffffffffd0000000
+ ori r11,r11,(H_VMALLOC_END >> 32)@l // r11 = 0xffffffffd0003800
+ // Rotate left 4, then mask with 0xffffffff0
+ rldic r11,r11,4,28 // r11 = 0xd00038000
+ cmpld r10,r11 // if r10 >= r11
+ bge 5f // goto io_mapping
+
+ /*
+ * vmalloc mapping gets the encoding from the PACA as the mapping
+ * can be demoted from 64K -> 4K dynamically on some machines.
*/
- clrldi r11,r10,48
- cmpldi r11,(H_VMALLOC_SIZE >> 28) - 1
- bgt 5f
lhz r11,PACAVMALLOCSLLP(r13)
b 6f
5:
@@ -235,6 +249,9 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEGMENT)
* dont have any LRU information to help us choose a slot.
*/
+ mr r9,r3
+
+ /* slb_finish_load_1T continues here. r9=EA with non-ESID bits clear */
7: ld r10,PACASTABRR(r13)
addi r10,r10,1
/* This gets soft patched on boot. */
@@ -249,10 +266,10 @@ slb_compare_rr_to_size:
std r10,PACASTABRR(r13)
3:
- rldimi r3,r10,0,36 /* r3= EA[0:35] | entry */
- oris r10,r3,SLB_ESID_V@h /* r3 |= SLB_ESID_V */
+ rldimi r9,r10,0,36 /* r9 = EA[0:35] | entry */
+ oris r10,r9,SLB_ESID_V@h /* r10 = r9 | SLB_ESID_V */
- /* r3 = ESID data, r11 = VSID data */
+ /* r9 = ESID data, r11 = VSID data */
/*
* No need for an isync before or after this slbmte. The exception
@@ -265,21 +282,21 @@ slb_compare_rr_to_size:
bgelr cr7
/* Update the slb cache */
- lhz r3,PACASLBCACHEPTR(r13) /* offset = paca->slb_cache_ptr */
- cmpldi r3,SLB_CACHE_ENTRIES
+ lhz r9,PACASLBCACHEPTR(r13) /* offset = paca->slb_cache_ptr */
+ cmpldi r9,SLB_CACHE_ENTRIES
bge 1f
/* still room in the slb cache */
- sldi r11,r3,2 /* r11 = offset * sizeof(u32) */
+ sldi r11,r9,2 /* r11 = offset * sizeof(u32) */
srdi r10,r10,28 /* get the 36 bits of the ESID */
add r11,r11,r13 /* r11 = (u32 *)paca + offset */
stw r10,PACASLBCACHE(r11) /* paca->slb_cache[offset] = esid */
- addi r3,r3,1 /* offset++ */
+ addi r9,r9,1 /* offset++ */
b 2f
1: /* offset >= SLB_CACHE_ENTRIES */
- li r3,SLB_CACHE_ENTRIES+1
+ li r9,SLB_CACHE_ENTRIES+1
2:
- sth r3,PACASLBCACHEPTR(r13) /* paca->slb_cache_ptr = offset */
+ sth r9,PACASLBCACHEPTR(r13) /* paca->slb_cache_ptr = offset */
crclr 4*cr0+eq /* set result to "success" */
blr
@@ -301,11 +318,11 @@ slb_compare_rr_to_size:
rldimi r11,r10,SLB_VSID_SSIZE_SHIFT,0 /* insert segment size */
/* r3 = EA, r11 = VSID data */
- clrrdi r3,r3,SID_SHIFT_1T /* clear out non-ESID bits */
+ clrrdi r9,r3,SID_SHIFT_1T /* clear out non-ESID bits */
b 7b
-_ASM_NOKPROBE_SYMBOL(slb_allocate_realmode)
+_ASM_NOKPROBE_SYMBOL(slb_allocate)
_ASM_NOKPROBE_SYMBOL(slb_miss_kernel_load_linear)
_ASM_NOKPROBE_SYMBOL(slb_miss_kernel_load_io)
_ASM_NOKPROBE_SYMBOL(slb_compare_rr_to_size)
diff --git a/arch/powerpc/mm/subpage-prot.c b/arch/powerpc/mm/subpage-prot.c
index e94fbd4c8845..781532d7bc4d 100644
--- a/arch/powerpc/mm/subpage-prot.c
+++ b/arch/powerpc/mm/subpage-prot.c
@@ -36,7 +36,7 @@ void subpage_prot_free(struct mm_struct *mm)
}
}
addr = 0;
- for (i = 0; i < 2; ++i) {
+ for (i = 0; i < (TASK_SIZE_USER64 >> 43); ++i) {
p = spt->protptrs[i];
if (!p)
continue;
diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c
index 02e71402fdd3..b3e849c4886e 100644
--- a/arch/powerpc/mm/tlb-radix.c
+++ b/arch/powerpc/mm/tlb-radix.c
@@ -12,11 +12,12 @@
#include <linux/mm.h>
#include <linux/hugetlb.h>
#include <linux/memblock.h>
-#include <asm/ppc-opcode.h>
+#include <asm/ppc-opcode.h>
#include <asm/tlb.h>
#include <asm/tlbflush.h>
-
+#include <asm/trace.h>
+#include <asm/cputhreads.h>
#define RIC_FLUSH_TLB 0
#define RIC_FLUSH_PWC 1
@@ -35,6 +36,7 @@ static inline void __tlbiel_pid(unsigned long pid, int set,
asm volatile(PPC_TLBIEL(%0, %4, %3, %2, %1)
: : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory");
+ trace_tlbie(0, 1, rb, rs, ric, prs, r);
}
/*
@@ -52,23 +54,15 @@ static inline void _tlbiel_pid(unsigned long pid, unsigned long ric)
*/
__tlbiel_pid(pid, 0, ric);
- if (ric == RIC_FLUSH_ALL)
- /* For the remaining sets, just flush the TLB */
- ric = RIC_FLUSH_TLB;
+ /* For PWC, only one flush is needed */
+ if (ric == RIC_FLUSH_PWC) {
+ asm volatile("ptesync": : :"memory");
+ return;
+ }
+ /* For the remaining sets, just flush the TLB */
for (set = 1; set < POWER9_TLB_SETS_RADIX ; set++)
- __tlbiel_pid(pid, set, ric);
-
- asm volatile("ptesync": : :"memory");
- asm volatile(PPC_INVALIDATE_ERAT "; isync" : : :"memory");
-}
-
-static inline void tlbiel_pwc(unsigned long pid)
-{
- asm volatile("ptesync": : :"memory");
-
- /* For PWC flush, we don't look at set number */
- __tlbiel_pid(pid, 0, RIC_FLUSH_PWC);
+ __tlbiel_pid(pid, set, RIC_FLUSH_TLB);
asm volatile("ptesync": : :"memory");
asm volatile(PPC_INVALIDATE_ERAT "; isync" : : :"memory");
@@ -87,6 +81,7 @@ static inline void _tlbie_pid(unsigned long pid, unsigned long ric)
asm volatile(PPC_TLBIE_5(%0, %4, %3, %2, %1)
: : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory");
asm volatile("eieio; tlbsync; ptesync": : :"memory");
+ trace_tlbie(0, 0, rb, rs, ric, prs, r);
}
static inline void _tlbiel_va(unsigned long va, unsigned long pid,
@@ -104,6 +99,7 @@ static inline void _tlbiel_va(unsigned long va, unsigned long pid,
asm volatile(PPC_TLBIEL(%0, %4, %3, %2, %1)
: : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory");
asm volatile("ptesync": : :"memory");
+ trace_tlbie(0, 1, rb, rs, ric, prs, r);
}
static inline void _tlbie_va(unsigned long va, unsigned long pid,
@@ -121,6 +117,7 @@ static inline void _tlbie_va(unsigned long va, unsigned long pid,
asm volatile(PPC_TLBIE_5(%0, %4, %3, %2, %1)
: : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory");
asm volatile("eieio; tlbsync; ptesync": : :"memory");
+ trace_tlbie(0, 0, rb, rs, ric, prs, r);
}
/*
@@ -141,31 +138,23 @@ void radix__local_flush_tlb_mm(struct mm_struct *mm)
preempt_disable();
pid = mm->context.id;
if (pid != MMU_NO_CONTEXT)
- _tlbiel_pid(pid, RIC_FLUSH_ALL);
+ _tlbiel_pid(pid, RIC_FLUSH_TLB);
preempt_enable();
}
EXPORT_SYMBOL(radix__local_flush_tlb_mm);
-void radix__local_flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr)
+#ifndef CONFIG_SMP
+static void radix__local_flush_all_mm(struct mm_struct *mm)
{
unsigned long pid;
- struct mm_struct *mm = tlb->mm;
- /*
- * If we are doing a full mm flush, we will do a tlb flush
- * with RIC_FLUSH_ALL later.
- */
- if (tlb->fullmm)
- return;
preempt_disable();
-
pid = mm->context.id;
if (pid != MMU_NO_CONTEXT)
- tlbiel_pwc(pid);
-
+ _tlbiel_pid(pid, RIC_FLUSH_ALL);
preempt_enable();
}
-EXPORT_SYMBOL(radix__local_flush_tlb_pwc);
+#endif /* CONFIG_SMP */
void radix__local_flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr,
int psize)
@@ -203,38 +192,35 @@ void radix__flush_tlb_mm(struct mm_struct *mm)
goto no_context;
if (!mm_is_thread_local(mm))
- _tlbie_pid(pid, RIC_FLUSH_ALL);
+ _tlbie_pid(pid, RIC_FLUSH_TLB);
else
- _tlbiel_pid(pid, RIC_FLUSH_ALL);
+ _tlbiel_pid(pid, RIC_FLUSH_TLB);
no_context:
preempt_enable();
}
EXPORT_SYMBOL(radix__flush_tlb_mm);
-void radix__flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr)
+static void radix__flush_all_mm(struct mm_struct *mm)
{
unsigned long pid;
- struct mm_struct *mm = tlb->mm;
- /*
- * If we are doing a full mm flush, we will do a tlb flush
- * with RIC_FLUSH_ALL later.
- */
- if (tlb->fullmm)
- return;
preempt_disable();
-
pid = mm->context.id;
if (unlikely(pid == MMU_NO_CONTEXT))
goto no_context;
if (!mm_is_thread_local(mm))
- _tlbie_pid(pid, RIC_FLUSH_PWC);
+ _tlbie_pid(pid, RIC_FLUSH_ALL);
else
- tlbiel_pwc(pid);
+ _tlbiel_pid(pid, RIC_FLUSH_ALL);
no_context:
preempt_enable();
}
+
+void radix__flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr)
+{
+ tlb->need_flush_all = 1;
+}
EXPORT_SYMBOL(radix__flush_tlb_pwc);
void radix__flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr,
@@ -266,6 +252,8 @@ void radix__flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr)
}
EXPORT_SYMBOL(radix__flush_tlb_page);
+#else /* CONFIG_SMP */
+#define radix__flush_all_mm radix__local_flush_all_mm
#endif /* CONFIG_SMP */
void radix__flush_tlb_kernel_range(unsigned long start, unsigned long end)
@@ -283,6 +271,7 @@ void radix__flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
{
struct mm_struct *mm = vma->vm_mm;
+
radix__flush_tlb_mm(mm);
}
EXPORT_SYMBOL(radix__flush_tlb_range);
@@ -314,7 +303,10 @@ void radix__tlb_flush(struct mmu_gather *tlb)
*/
if (psize != -1 && !tlb->fullmm && !tlb->need_flush_all)
radix__flush_tlb_range_psize(mm, tlb->start, tlb->end, psize);
- else
+ else if (tlb->need_flush_all) {
+ tlb->need_flush_all = 0;
+ radix__flush_all_mm(mm);
+ } else
radix__flush_tlb_mm(mm);
}
@@ -359,6 +351,43 @@ err_out:
preempt_enable();
}
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+void radix__flush_tlb_collapsed_pmd(struct mm_struct *mm, unsigned long addr)
+{
+ int local = mm_is_thread_local(mm);
+ unsigned long ap = mmu_get_ap(mmu_virtual_psize);
+ unsigned long pid, end;
+
+
+ pid = mm ? mm->context.id : 0;
+ if (unlikely(pid == MMU_NO_CONTEXT))
+ goto no_context;
+
+ /* 4k page size, just blow the world */
+ if (PAGE_SIZE == 0x1000) {
+ radix__flush_all_mm(mm);
+ return;
+ }
+
+ /* Otherwise first do the PWC */
+ if (local)
+ _tlbiel_pid(pid, RIC_FLUSH_PWC);
+ else
+ _tlbie_pid(pid, RIC_FLUSH_PWC);
+
+ /* Then iterate the pages */
+ end = addr + HPAGE_PMD_SIZE;
+ for (; addr < end; addr += PAGE_SIZE) {
+ if (local)
+ _tlbiel_va(addr, pid, ap, RIC_FLUSH_TLB);
+ else
+ _tlbie_va(addr, pid, ap, RIC_FLUSH_TLB);
+ }
+no_context:
+ preempt_enable();
+}
+#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
+
void radix__flush_tlb_lpid_va(unsigned long lpid, unsigned long gpa,
unsigned long page_size)
{
@@ -377,6 +406,7 @@ void radix__flush_tlb_lpid_va(unsigned long lpid, unsigned long gpa,
asm volatile(PPC_TLBIE_5(%0, %4, %3, %2, %1)
: : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory");
asm volatile("eieio; tlbsync; ptesync": : :"memory");
+ trace_tlbie(lpid, 0, rb, rs, ric, prs, r);
}
EXPORT_SYMBOL(radix__flush_tlb_lpid_va);
@@ -394,6 +424,7 @@ void radix__flush_tlb_lpid(unsigned long lpid)
asm volatile(PPC_TLBIE_5(%0, %4, %3, %2, %1)
: : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory");
asm volatile("eieio; tlbsync; ptesync": : :"memory");
+ trace_tlbie(lpid, 0, rb, rs, ric, prs, r);
}
EXPORT_SYMBOL(radix__flush_tlb_lpid);
@@ -420,12 +451,14 @@ void radix__flush_tlb_all(void)
*/
asm volatile(PPC_TLBIE_5(%0, %4, %3, %2, %1)
: : "r"(rb), "i"(r), "i"(1), "i"(ric), "r"(rs) : "memory");
+ trace_tlbie(0, 0, rb, rs, ric, prs, r);
/*
* now flush host entires by passing PRS = 0 and LPID == 0
*/
asm volatile(PPC_TLBIE_5(%0, %4, %3, %2, %1)
: : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(0) : "memory");
asm volatile("eieio; tlbsync; ptesync": : :"memory");
+ trace_tlbie(0, 0, rb, 0, ric, prs, r);
}
void radix__flush_tlb_pte_p9_dd1(unsigned long old_pte, struct mm_struct *mm,
@@ -445,3 +478,44 @@ void radix__flush_tlb_pte_p9_dd1(unsigned long old_pte, struct mm_struct *mm,
else
radix__flush_tlb_page_psize(mm, address, mmu_virtual_psize);
}
+
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+extern void radix_kvm_prefetch_workaround(struct mm_struct *mm)
+{
+ unsigned int pid = mm->context.id;
+
+ if (unlikely(pid == MMU_NO_CONTEXT))
+ return;
+
+ /*
+ * If this context hasn't run on that CPU before and KVM is
+ * around, there's a slim chance that the guest on another
+ * CPU just brought in obsolete translation into the TLB of
+ * this CPU due to a bad prefetch using the guest PID on
+ * the way into the hypervisor.
+ *
+ * We work around this here. If KVM is possible, we check if
+ * any sibling thread is in KVM. If it is, the window may exist
+ * and thus we flush that PID from the core.
+ *
+ * A potential future improvement would be to mark which PIDs
+ * have never been used on the system and avoid it if the PID
+ * is new and the process has no other cpumask bit set.
+ */
+ if (cpu_has_feature(CPU_FTR_HVMODE) && radix_enabled()) {
+ int cpu = smp_processor_id();
+ int sib = cpu_first_thread_sibling(cpu);
+ bool flush = false;
+
+ for (; sib <= cpu_last_thread_sibling(cpu) && !flush; sib++) {
+ if (sib == cpu)
+ continue;
+ if (paca[sib].kvm_hstate.kvm_vcpu)
+ flush = true;
+ }
+ if (flush)
+ _tlbiel_pid(pid, RIC_FLUSH_ALL);
+ }
+}
+EXPORT_SYMBOL_GPL(radix_kvm_prefetch_workaround);
+#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
diff --git a/arch/powerpc/mm/tlb_hash64.c b/arch/powerpc/mm/tlb_hash64.c
index 4517aa43a8b1..881ebd53ffc2 100644
--- a/arch/powerpc/mm/tlb_hash64.c
+++ b/arch/powerpc/mm/tlb_hash64.c
@@ -29,6 +29,8 @@
#include <asm/tlbflush.h>
#include <asm/tlb.h>
#include <asm/bug.h>
+#include <asm/pte-walk.h>
+
#include <trace/events/thp.h>
@@ -93,12 +95,10 @@ void hpte_need_flush(struct mm_struct *mm, unsigned long addr,
/*
* Check if we have an active batch on this CPU. If not, just
- * flush now and return. For now, we don global invalidates
- * in that case, might be worth testing the mm cpu mask though
- * and decide to use local invalidates instead...
+ * flush now and return.
*/
if (!batch->active) {
- flush_hash_page(vpn, rpte, psize, ssize, 0);
+ flush_hash_page(vpn, rpte, psize, ssize, mm_is_thread_local(mm));
put_cpu_var(ppc64_tlb_batch);
return;
}
@@ -140,13 +140,10 @@ void hpte_need_flush(struct mm_struct *mm, unsigned long addr,
*/
void __flush_tlb_pending(struct ppc64_tlb_batch *batch)
{
- const struct cpumask *tmp;
- int i, local = 0;
+ int i, local;
i = batch->index;
- tmp = cpumask_of(smp_processor_id());
- if (cpumask_equal(mm_cpumask(batch->mm), tmp))
- local = 1;
+ local = mm_is_thread_local(batch->mm);
if (i == 1)
flush_hash_page(batch->vpn[0], batch->pte[0],
batch->psize, batch->ssize, local);
@@ -209,8 +206,8 @@ void __flush_hash_table_range(struct mm_struct *mm, unsigned long start,
local_irq_save(flags);
arch_enter_lazy_mmu_mode();
for (; start < end; start += PAGE_SIZE) {
- pte_t *ptep = find_linux_pte_or_hugepte(mm->pgd, start, &is_thp,
- &hugepage_shift);
+ pte_t *ptep = find_current_mm_pte(mm->pgd, start, &is_thp,
+ &hugepage_shift);
unsigned long pte;
if (ptep == NULL)
diff --git a/arch/powerpc/mm/tlb_nohash_low.S b/arch/powerpc/mm/tlb_nohash_low.S
index eabecfcaef7c..048b8e9f4492 100644
--- a/arch/powerpc/mm/tlb_nohash_low.S
+++ b/arch/powerpc/mm/tlb_nohash_low.S
@@ -60,7 +60,7 @@ _GLOBAL(__tlbil_va)
isync
1: blr
-#elif defined(CONFIG_8xx)
+#elif defined(CONFIG_PPC_8xx)
/*
* Nothing to do for 8xx, everything is inline
diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h
index 30cf03f53428..47fc6660845d 100644
--- a/arch/powerpc/net/bpf_jit.h
+++ b/arch/powerpc/net/bpf_jit.h
@@ -263,6 +263,7 @@ static inline bool is_nearbranch(int offset)
#define COND_EQ (CR0_EQ | COND_CMP_TRUE)
#define COND_NE (CR0_EQ | COND_CMP_FALSE)
#define COND_LT (CR0_LT | COND_CMP_TRUE)
+#define COND_LE (CR0_GT | COND_CMP_FALSE)
#endif
diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c
index aee2bb817ac6..a66e64b0b251 100644
--- a/arch/powerpc/net/bpf_jit_comp64.c
+++ b/arch/powerpc/net/bpf_jit_comp64.c
@@ -25,11 +25,7 @@ int bpf_jit_enable __read_mostly;
static void bpf_jit_fill_ill_insns(void *area, unsigned int size)
{
- int *p = area;
-
- /* Fill whole space with trap instructions */
- while (p < (int *)((char *)area + size))
- *p++ = BREAKPOINT_INSTRUCTION;
+ memset32(area, BREAKPOINT_INSTRUCTION, size/4);
}
static inline void bpf_flush_icache(void *start, void *end)
@@ -795,12 +791,24 @@ emit_clear:
case BPF_JMP | BPF_JSGT | BPF_X:
true_cond = COND_GT;
goto cond_branch;
+ case BPF_JMP | BPF_JLT | BPF_K:
+ case BPF_JMP | BPF_JLT | BPF_X:
+ case BPF_JMP | BPF_JSLT | BPF_K:
+ case BPF_JMP | BPF_JSLT | BPF_X:
+ true_cond = COND_LT;
+ goto cond_branch;
case BPF_JMP | BPF_JGE | BPF_K:
case BPF_JMP | BPF_JGE | BPF_X:
case BPF_JMP | BPF_JSGE | BPF_K:
case BPF_JMP | BPF_JSGE | BPF_X:
true_cond = COND_GE;
goto cond_branch;
+ case BPF_JMP | BPF_JLE | BPF_K:
+ case BPF_JMP | BPF_JLE | BPF_X:
+ case BPF_JMP | BPF_JSLE | BPF_K:
+ case BPF_JMP | BPF_JSLE | BPF_X:
+ true_cond = COND_LE;
+ goto cond_branch;
case BPF_JMP | BPF_JEQ | BPF_K:
case BPF_JMP | BPF_JEQ | BPF_X:
true_cond = COND_EQ;
@@ -817,14 +825,18 @@ emit_clear:
cond_branch:
switch (code) {
case BPF_JMP | BPF_JGT | BPF_X:
+ case BPF_JMP | BPF_JLT | BPF_X:
case BPF_JMP | BPF_JGE | BPF_X:
+ case BPF_JMP | BPF_JLE | BPF_X:
case BPF_JMP | BPF_JEQ | BPF_X:
case BPF_JMP | BPF_JNE | BPF_X:
/* unsigned comparison */
PPC_CMPLD(dst_reg, src_reg);
break;
case BPF_JMP | BPF_JSGT | BPF_X:
+ case BPF_JMP | BPF_JSLT | BPF_X:
case BPF_JMP | BPF_JSGE | BPF_X:
+ case BPF_JMP | BPF_JSLE | BPF_X:
/* signed comparison */
PPC_CMPD(dst_reg, src_reg);
break;
@@ -834,7 +846,9 @@ cond_branch:
case BPF_JMP | BPF_JNE | BPF_K:
case BPF_JMP | BPF_JEQ | BPF_K:
case BPF_JMP | BPF_JGT | BPF_K:
+ case BPF_JMP | BPF_JLT | BPF_K:
case BPF_JMP | BPF_JGE | BPF_K:
+ case BPF_JMP | BPF_JLE | BPF_K:
/*
* Need sign-extended load, so only positive
* values can be used as imm in cmpldi
@@ -849,7 +863,9 @@ cond_branch:
}
break;
case BPF_JMP | BPF_JSGT | BPF_K:
+ case BPF_JMP | BPF_JSLT | BPF_K:
case BPF_JMP | BPF_JSGE | BPF_K:
+ case BPF_JMP | BPF_JSLE | BPF_K:
/*
* signed comparison, so any 16-bit value
* can be used in cmpdi
@@ -938,7 +954,7 @@ common_load:
/*
* Tail call
*/
- case BPF_JMP | BPF_CALL | BPF_X:
+ case BPF_JMP | BPF_TAIL_CALL:
ctx->seen |= SEEN_TAILCALL;
bpf_jit_emit_tail_call(image, ctx, addrs[i + 1]);
break;
@@ -1052,6 +1068,7 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *fp)
fp->bpf_func = (void *)image;
fp->jited = 1;
+ fp->jited_len = alloclen;
bpf_flush_icache(bpf_hdr, (u8 *)bpf_hdr + (bpf_hdr->pages * PAGE_SIZE));
diff --git a/arch/powerpc/perf/Makefile b/arch/powerpc/perf/Makefile
index 4d606b99a5cb..3f3a5ce66495 100644
--- a/arch/powerpc/perf/Makefile
+++ b/arch/powerpc/perf/Makefile
@@ -8,6 +8,7 @@ obj64-$(CONFIG_PPC_PERF_CTRS) += power4-pmu.o ppc970-pmu.o power5-pmu.o \
isa207-common.o power8-pmu.o power9-pmu.o
obj32-$(CONFIG_PPC_PERF_CTRS) += mpc7450-pmu.o
+obj-$(CONFIG_PPC_POWERNV) += imc-pmu.o
obj-$(CONFIG_FSL_EMB_PERF_EVENT) += core-fsl-emb.o
obj-$(CONFIG_FSL_EMB_PERF_EVENT_E500) += e500-pmu.o e6500-pmu.o
diff --git a/arch/powerpc/perf/callchain.c b/arch/powerpc/perf/callchain.c
index 0fc26714780a..0af051a1974e 100644
--- a/arch/powerpc/perf/callchain.c
+++ b/arch/powerpc/perf/callchain.c
@@ -22,6 +22,7 @@
#ifdef CONFIG_PPC64
#include "../kernel/ppc32.h"
#endif
+#include <asm/pte-walk.h>
/*
@@ -127,7 +128,7 @@ static int read_user_stack_slow(void __user *ptr, void *buf, int nb)
return -EFAULT;
local_irq_save(flags);
- ptep = find_linux_pte_or_hugepte(pgdir, addr, NULL, &shift);
+ ptep = find_current_mm_pte(pgdir, addr, NULL, &shift);
if (!ptep)
goto err_out;
if (!shift)
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index 6c2d4168daec..9e3da168d54c 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -793,6 +793,11 @@ void perf_event_print_debug(void)
u32 pmcs[MAX_HWEVENTS];
int i;
+ if (!ppmu) {
+ pr_info("Performance monitor hardware not registered.\n");
+ return;
+ }
+
if (!ppmu->n_counter)
return;
@@ -2039,7 +2044,8 @@ static void record_and_restart(struct perf_event *event, unsigned long val,
perf_sample_data_init(&data, ~0ULL, event->hw.last_period);
- if (event->attr.sample_type & PERF_SAMPLE_ADDR)
+ if (event->attr.sample_type &
+ (PERF_SAMPLE_ADDR | PERF_SAMPLE_PHYS_ADDR))
perf_get_data_addr(regs, &data.addr);
if (event->attr.sample_type & PERF_SAMPLE_BRANCH_STACK) {
diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c
index 7b2ca16b1eb4..9c88b82f6229 100644
--- a/arch/powerpc/perf/hv-24x7.c
+++ b/arch/powerpc/perf/hv-24x7.c
@@ -18,6 +18,7 @@
#include <linux/slab.h>
#include <linux/vmalloc.h>
+#include <asm/cputhreads.h>
#include <asm/firmware.h>
#include <asm/hvcall.h>
#include <asm/io.h>
@@ -27,6 +28,12 @@
#include "hv-24x7-catalog.h"
#include "hv-common.h"
+/* Version of the 24x7 hypervisor API that we should use in this machine. */
+static int interface_version;
+
+/* Whether we have to aggregate result data for some domains. */
+static bool aggregate_result_elements;
+
static bool domain_is_valid(unsigned domain)
{
switch (domain) {
@@ -54,6 +61,15 @@ static bool is_physical_domain(unsigned domain)
}
}
+/* Domains for which more than one result element are returned for each event. */
+static bool domain_needs_aggregation(unsigned int domain)
+{
+ return aggregate_result_elements &&
+ (domain == HV_PERF_DOMAIN_PHYS_CORE ||
+ (domain >= HV_PERF_DOMAIN_VCPU_HOME_CORE &&
+ domain <= HV_PERF_DOMAIN_VCPU_REMOTE_NODE));
+}
+
static const char *domain_name(unsigned domain)
{
if (!domain_is_valid(domain))
@@ -74,7 +90,11 @@ static const char *domain_name(unsigned domain)
static bool catalog_entry_domain_is_valid(unsigned domain)
{
- return is_physical_domain(domain);
+ /* POWER8 doesn't support virtual domains. */
+ if (interface_version == 1)
+ return is_physical_domain(domain);
+ else
+ return domain_is_valid(domain);
}
/*
@@ -166,6 +186,12 @@ DEFINE_PER_CPU(struct hv_24x7_hw, hv_24x7_hw);
DEFINE_PER_CPU(char, hv_24x7_reqb[H24x7_DATA_BUFFER_SIZE]) __aligned(4096);
DEFINE_PER_CPU(char, hv_24x7_resb[H24x7_DATA_BUFFER_SIZE]) __aligned(4096);
+static unsigned int max_num_requests(int interface_version)
+{
+ return (H24x7_DATA_BUFFER_SIZE - sizeof(struct hv_24x7_request_buffer))
+ / H24x7_REQUEST_SIZE(interface_version);
+}
+
static char *event_name(struct hv_24x7_event_data *ev, int *len)
{
*len = be16_to_cpu(ev->event_name_len) - 2;
@@ -260,9 +286,8 @@ static void *event_end(struct hv_24x7_event_data *ev, void *end)
return start + nl + dl + ldl;
}
-static unsigned long h_get_24x7_catalog_page_(unsigned long phys_4096,
- unsigned long version,
- unsigned long index)
+static long h_get_24x7_catalog_page_(unsigned long phys_4096,
+ unsigned long version, unsigned long index)
{
pr_devel("h_get_24x7_catalog_page(0x%lx, %lu, %lu)",
phys_4096, version, index);
@@ -273,8 +298,7 @@ static unsigned long h_get_24x7_catalog_page_(unsigned long phys_4096,
phys_4096, version, index);
}
-static unsigned long h_get_24x7_catalog_page(char page[],
- u64 version, u32 index)
+static long h_get_24x7_catalog_page(char page[], u64 version, u32 index)
{
return h_get_24x7_catalog_page_(virt_to_phys(page),
version, index);
@@ -664,13 +688,13 @@ static int create_events_from_catalog(struct attribute ***events_,
struct attribute ***event_descs_,
struct attribute ***event_long_descs_)
{
- unsigned long hret;
+ long hret;
size_t catalog_len, catalog_page_len, event_entry_count,
event_data_len, event_data_offs,
event_data_bytes, junk_events, event_idx, event_attr_ct, i,
attr_max, event_idx_last, desc_ct, long_desc_ct;
ssize_t ct, ev_len;
- uint32_t catalog_version_num;
+ uint64_t catalog_version_num;
struct attribute **events, **event_descs, **event_long_descs;
struct hv_24x7_catalog_page_0 *page_0 =
kmem_cache_alloc(hv_page_cache, GFP_KERNEL);
@@ -706,8 +730,8 @@ static int create_events_from_catalog(struct attribute ***events_,
event_data_offs = be16_to_cpu(page_0->event_data_offs);
event_data_len = be16_to_cpu(page_0->event_data_len);
- pr_devel("cv %zu cl %zu eec %zu edo %zu edl %zu\n",
- (size_t)catalog_version_num, catalog_len,
+ pr_devel("cv %llu cl %zu eec %zu edo %zu edl %zu\n",
+ catalog_version_num, catalog_len,
event_entry_count, event_data_offs, event_data_len);
if ((MAX_4K < event_data_len)
@@ -761,8 +785,8 @@ static int create_events_from_catalog(struct attribute ***events_,
catalog_version_num,
i + event_data_offs);
if (hret) {
- pr_err("failed to get event data in page %zu\n",
- i + event_data_offs);
+ pr_err("Failed to get event data in page %zu: rc=%ld\n",
+ i + event_data_offs, hret);
ret = -EIO;
goto e_event_data;
}
@@ -903,7 +927,7 @@ static ssize_t catalog_read(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr, char *buf,
loff_t offset, size_t count)
{
- unsigned long hret;
+ long hret;
ssize_t ret = 0;
size_t catalog_len = 0, catalog_page_len = 0;
loff_t page_offset = 0;
@@ -988,7 +1012,7 @@ static ssize_t _name##_show(struct device *dev, \
struct device_attribute *dev_attr, \
char *buf) \
{ \
- unsigned long hret; \
+ long hret; \
ssize_t ret = 0; \
void *page = kmem_cache_alloc(hv_page_cache, GFP_USER); \
struct hv_24x7_catalog_page_0 *page_0 = page; \
@@ -1040,21 +1064,6 @@ static const struct attribute_group *attr_groups[] = {
NULL,
};
-static void log_24x7_hcall(struct hv_24x7_request_buffer *request_buffer,
- struct hv_24x7_data_result_buffer *result_buffer,
- unsigned long ret)
-{
- struct hv_24x7_request *req;
-
- req = &request_buffer->requests[0];
- pr_notice_ratelimited("hcall failed: [%d %#x %#x %d] => "
- "ret 0x%lx (%ld) detail=0x%x failing ix=%x\n",
- req->performance_domain, req->data_offset,
- req->starting_ix, req->starting_lpar_ix, ret, ret,
- result_buffer->detailed_rc,
- result_buffer->failing_request_ix);
-}
-
/*
* Start the process for a new H_GET_24x7_DATA hcall.
*/
@@ -1062,10 +1071,10 @@ static void init_24x7_request(struct hv_24x7_request_buffer *request_buffer,
struct hv_24x7_data_result_buffer *result_buffer)
{
- memset(request_buffer, 0, 4096);
- memset(result_buffer, 0, 4096);
+ memset(request_buffer, 0, H24x7_DATA_BUFFER_SIZE);
+ memset(result_buffer, 0, H24x7_DATA_BUFFER_SIZE);
- request_buffer->interface_version = HV_24X7_IF_VERSION_CURRENT;
+ request_buffer->interface_version = interface_version;
/* memset above set request_buffer->num_requests to 0 */
}
@@ -1076,7 +1085,7 @@ static void init_24x7_request(struct hv_24x7_request_buffer *request_buffer,
static int make_24x7_request(struct hv_24x7_request_buffer *request_buffer,
struct hv_24x7_data_result_buffer *result_buffer)
{
- unsigned long ret;
+ long ret;
/*
* NOTE: Due to variable number of array elements in request and
@@ -1087,10 +1096,19 @@ static int make_24x7_request(struct hv_24x7_request_buffer *request_buffer,
virt_to_phys(request_buffer), H24x7_DATA_BUFFER_SIZE,
virt_to_phys(result_buffer), H24x7_DATA_BUFFER_SIZE);
- if (ret)
- log_24x7_hcall(request_buffer, result_buffer, ret);
+ if (ret) {
+ struct hv_24x7_request *req;
+
+ req = request_buffer->requests;
+ pr_notice_ratelimited("hcall failed: [%d %#x %#x %d] => ret 0x%lx (%ld) detail=0x%x failing ix=%x\n",
+ req->performance_domain, req->data_offset,
+ req->starting_ix, req->starting_lpar_ix,
+ ret, ret, result_buffer->detailed_rc,
+ result_buffer->failing_request_ix);
+ return -EIO;
+ }
- return ret;
+ return 0;
}
/*
@@ -1105,9 +1123,11 @@ static int add_event_to_24x7_request(struct perf_event *event,
{
u16 idx;
int i;
+ size_t req_size;
struct hv_24x7_request *req;
- if (request_buffer->num_requests > 254) {
+ if (request_buffer->num_requests >=
+ max_num_requests(request_buffer->interface_version)) {
pr_devel("Too many requests for 24x7 HCALL %d\n",
request_buffer->num_requests);
return -EINVAL;
@@ -1124,23 +1144,113 @@ static int add_event_to_24x7_request(struct perf_event *event,
idx = event_get_vcpu(event);
}
+ req_size = H24x7_REQUEST_SIZE(request_buffer->interface_version);
+
i = request_buffer->num_requests++;
- req = &request_buffer->requests[i];
+ req = (void *) request_buffer->requests + i * req_size;
req->performance_domain = event_get_domain(event);
req->data_size = cpu_to_be16(8);
req->data_offset = cpu_to_be32(event_get_offset(event));
- req->starting_lpar_ix = cpu_to_be16(event_get_lpar(event)),
+ req->starting_lpar_ix = cpu_to_be16(event_get_lpar(event));
req->max_num_lpars = cpu_to_be16(1);
req->starting_ix = cpu_to_be16(idx);
req->max_ix = cpu_to_be16(1);
+ if (request_buffer->interface_version > 1) {
+ if (domain_needs_aggregation(req->performance_domain))
+ req->max_num_thread_groups = -1;
+ else if (req->performance_domain != HV_PERF_DOMAIN_PHYS_CHIP) {
+ req->starting_thread_group_ix = idx % 2;
+ req->max_num_thread_groups = 1;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * get_count_from_result - get event count from all result elements in result
+ *
+ * If the event corresponding to this result needs aggregation of the result
+ * element values, then this function does that.
+ *
+ * @event: Event associated with @res.
+ * @resb: Result buffer containing @res.
+ * @res: Result to work on.
+ * @countp: Output variable containing the event count.
+ * @next: Optional output variable pointing to the next result in @resb.
+ */
+static int get_count_from_result(struct perf_event *event,
+ struct hv_24x7_data_result_buffer *resb,
+ struct hv_24x7_result *res, u64 *countp,
+ struct hv_24x7_result **next)
+{
+ u16 num_elements = be16_to_cpu(res->num_elements_returned);
+ u16 data_size = be16_to_cpu(res->result_element_data_size);
+ unsigned int data_offset;
+ void *element_data;
+ int i;
+ u64 count;
+
+ /*
+ * We can bail out early if the result is empty.
+ */
+ if (!num_elements) {
+ pr_debug("Result of request %hhu is empty, nothing to do\n",
+ res->result_ix);
+
+ if (next)
+ *next = (struct hv_24x7_result *) res->elements;
+
+ return -ENODATA;
+ }
+
+ /*
+ * Since we always specify 1 as the maximum for the smallest resource
+ * we're requesting, there should to be only one element per result.
+ * Except when an event needs aggregation, in which case there are more.
+ */
+ if (num_elements != 1 &&
+ !domain_needs_aggregation(event_get_domain(event))) {
+ pr_err("Error: result of request %hhu has %hu elements\n",
+ res->result_ix, num_elements);
+
+ return -EIO;
+ }
+
+ if (data_size != sizeof(u64)) {
+ pr_debug("Error: result of request %hhu has data of %hu bytes\n",
+ res->result_ix, data_size);
+
+ return -ENOTSUPP;
+ }
+
+ if (resb->interface_version == 1)
+ data_offset = offsetof(struct hv_24x7_result_element_v1,
+ element_data);
+ else
+ data_offset = offsetof(struct hv_24x7_result_element_v2,
+ element_data);
+
+ /* Go through the result elements in the result. */
+ for (i = count = 0, element_data = res->elements + data_offset;
+ i < num_elements;
+ i++, element_data += data_size + data_offset)
+ count += be64_to_cpu(*((u64 *) element_data));
+
+ *countp = count;
+
+ /* The next result is after the last result element. */
+ if (next)
+ *next = element_data - data_offset;
+
return 0;
}
-static unsigned long single_24x7_request(struct perf_event *event, u64 *count)
+static int single_24x7_request(struct perf_event *event, u64 *count)
{
- unsigned long ret;
+ int ret;
struct hv_24x7_request_buffer *request_buffer;
struct hv_24x7_data_result_buffer *result_buffer;
@@ -1157,13 +1267,12 @@ static unsigned long single_24x7_request(struct perf_event *event, u64 *count)
goto out;
ret = make_24x7_request(request_buffer, result_buffer);
- if (ret) {
- log_24x7_hcall(request_buffer, result_buffer, ret);
+ if (ret)
goto out;
- }
/* process result from hcall */
- *count = be64_to_cpu(result_buffer->results[0].elements[0].element_data[0]);
+ ret = get_count_from_result(event, result_buffer,
+ result_buffer->results, count, NULL);
out:
put_cpu_var(hv_24x7_reqb);
@@ -1216,9 +1325,8 @@ static int h_24x7_event_init(struct perf_event *event)
return -EINVAL;
}
- /* Domains above 6 are invalid */
domain = event_get_domain(event);
- if (domain > 6) {
+ if (domain >= HV_PERF_DOMAIN_MAX) {
pr_devel("invalid domain %d\n", domain);
return -EINVAL;
}
@@ -1250,10 +1358,9 @@ static int h_24x7_event_init(struct perf_event *event)
static u64 h_24x7_get_value(struct perf_event *event)
{
- unsigned long ret;
u64 ct;
- ret = single_24x7_request(event, &ct);
- if (ret)
+
+ if (single_24x7_request(event, &ct))
/* We checked this in event init, shouldn't fail here... */
return 0;
@@ -1396,8 +1503,7 @@ static int h_24x7_event_commit_txn(struct pmu *pmu)
{
struct hv_24x7_request_buffer *request_buffer;
struct hv_24x7_data_result_buffer *result_buffer;
- struct hv_24x7_result *resb;
- struct perf_event *event;
+ struct hv_24x7_result *res, *next_res;
u64 count;
int i, ret, txn_flags;
struct hv_24x7_hw *h24x7hw;
@@ -1417,19 +1523,21 @@ static int h_24x7_event_commit_txn(struct pmu *pmu)
result_buffer = (void *)get_cpu_var(hv_24x7_resb);
ret = make_24x7_request(request_buffer, result_buffer);
- if (ret) {
- log_24x7_hcall(request_buffer, result_buffer, ret);
+ if (ret)
goto put_reqb;
- }
h24x7hw = &get_cpu_var(hv_24x7_hw);
- /* Update event counts from hcall */
- for (i = 0; i < request_buffer->num_requests; i++) {
- resb = &result_buffer->results[i];
- count = be64_to_cpu(resb->elements[0].element_data[0]);
- event = h24x7hw->events[i];
- h24x7hw->events[i] = NULL;
+ /* Go through results in the result buffer to update event counts. */
+ for (i = 0, res = result_buffer->results;
+ i < result_buffer->num_results; i++, res = next_res) {
+ struct perf_event *event = h24x7hw->events[res->result_ix];
+
+ ret = get_count_from_result(event, result_buffer, res, &count,
+ &next_res);
+ if (ret)
+ break;
+
update_event_count(event, count);
}
@@ -1480,6 +1588,18 @@ static int hv_24x7_init(void)
if (!firmware_has_feature(FW_FEATURE_LPAR)) {
pr_debug("not a virtualized system, not enabling\n");
return -ENODEV;
+ } else if (!cur_cpu_spec->oprofile_cpu_type)
+ return -ENODEV;
+
+ /* POWER8 only supports v1, while POWER9 only supports v2. */
+ if (!strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power8"))
+ interface_version = 1;
+ else {
+ interface_version = 2;
+
+ /* SMT8 in POWER9 needs to aggregate result elements. */
+ if (threads_per_core == 8)
+ aggregate_result_elements = true;
}
hret = hv_perf_caps_get(&caps);
diff --git a/arch/powerpc/perf/hv-24x7.h b/arch/powerpc/perf/hv-24x7.h
index 634ef4082cdc..5092c4a222a6 100644
--- a/arch/powerpc/perf/hv-24x7.h
+++ b/arch/powerpc/perf/hv-24x7.h
@@ -10,6 +10,8 @@ enum hv_perf_domains {
HV_PERF_DOMAIN_MAX,
};
+#define H24x7_REQUEST_SIZE(iface_version) (iface_version == 1 ? 16 : 32)
+
struct hv_24x7_request {
/* PHYSICAL domains require enabling via phyp/hmc. */
__u8 performance_domain;
@@ -42,19 +44,27 @@ struct hv_24x7_request {
/* chip, core, or virtual processor based on @performance_domain */
__be16 starting_ix;
__be16 max_ix;
+
+ /* The following fields were added in v2 of the 24x7 interface. */
+
+ __u8 starting_thread_group_ix;
+
+ /* -1 means all thread groups starting at @starting_thread_group_ix */
+ __u8 max_num_thread_groups;
+
+ __u8 reserved2[0xE];
} __packed;
struct hv_24x7_request_buffer {
/* 0 - ? */
/* 1 - ? */
-#define HV_24X7_IF_VERSION_CURRENT 0x01
__u8 interface_version;
__u8 num_requests;
__u8 reserved[0xE];
- struct hv_24x7_request requests[1];
+ struct hv_24x7_request requests[];
} __packed;
-struct hv_24x7_result_element {
+struct hv_24x7_result_element_v1 {
__be16 lpar_ix;
/*
@@ -67,10 +77,38 @@ struct hv_24x7_result_element {
__be32 lpar_cfg_instance_id;
/* size = @result_element_data_size of containing result. */
- __u64 element_data[1];
+ __u64 element_data[];
+} __packed;
+
+/*
+ * We need a separate struct for v2 because the offset of @element_data changed
+ * between versions.
+ */
+struct hv_24x7_result_element_v2 {
+ __be16 lpar_ix;
+
+ /*
+ * represents the core, chip, or virtual processor based on the
+ * request's @performance_domain
+ */
+ __be16 domain_ix;
+
+ /* -1 if @performance_domain does not refer to a virtual processor */
+ __be32 lpar_cfg_instance_id;
+
+ __u8 thread_group_ix;
+
+ __u8 reserved[7];
+
+ /* size = @result_element_data_size of containing result. */
+ __u64 element_data[];
} __packed;
struct hv_24x7_result {
+ /*
+ * The index of the 24x7 Request Structure in the 24x7 Request Buffer
+ * used to request this result.
+ */
__u8 result_ix;
/*
@@ -81,14 +119,25 @@ struct hv_24x7_result {
__u8 results_complete;
__be16 num_elements_returned;
- /* This is a copy of @data_size from the corresponding hv_24x7_request */
+ /*
+ * This is a copy of @data_size from the corresponding hv_24x7_request
+ *
+ * Warning: to obtain the size of each element in @elements you have
+ * to add the size of the other members of the result_element struct.
+ */
__be16 result_element_data_size;
__u8 reserved[0x2];
- /* WARNING: only valid for first result element due to variable sizes
- * of result elements */
- /* struct hv_24x7_result_element[@num_elements_returned] */
- struct hv_24x7_result_element elements[1];
+ /*
+ * Either
+ * struct hv_24x7_result_element_v1[@num_elements_returned]
+ * or
+ * struct hv_24x7_result_element_v2[@num_elements_returned]
+ *
+ * depending on the interface_version field of the
+ * struct hv_24x7_data_result_buffer containing this result.
+ */
+ char elements[];
} __packed;
struct hv_24x7_data_result_buffer {
@@ -104,7 +153,7 @@ struct hv_24x7_data_result_buffer {
__u8 reserved2[0x8];
/* WARNING: only valid for the first result due to variable sizes of
* results */
- struct hv_24x7_result results[1]; /* [@num_results] */
+ struct hv_24x7_result results[]; /* [@num_results] */
} __packed;
#endif
diff --git a/arch/powerpc/perf/imc-pmu.c b/arch/powerpc/perf/imc-pmu.c
new file mode 100644
index 000000000000..88126245881b
--- /dev/null
+++ b/arch/powerpc/perf/imc-pmu.c
@@ -0,0 +1,1335 @@
+/*
+ * In-Memory Collection (IMC) Performance Monitor counter support.
+ *
+ * Copyright (C) 2017 Madhavan Srinivasan, IBM Corporation.
+ * (C) 2017 Anju T Sudhakar, IBM Corporation.
+ * (C) 2017 Hemant K Shaw, IBM Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or later version.
+ */
+#include <linux/perf_event.h>
+#include <linux/slab.h>
+#include <asm/opal.h>
+#include <asm/imc-pmu.h>
+#include <asm/cputhreads.h>
+#include <asm/smp.h>
+#include <linux/string.h>
+
+/* Nest IMC data structures and variables */
+
+/*
+ * Used to avoid races in counting the nest-pmu units during hotplug
+ * register and unregister
+ */
+static DEFINE_MUTEX(nest_init_lock);
+static DEFINE_PER_CPU(struct imc_pmu_ref *, local_nest_imc_refc);
+static struct imc_pmu *per_nest_pmu_arr[IMC_MAX_PMUS];
+static cpumask_t nest_imc_cpumask;
+struct imc_pmu_ref *nest_imc_refc;
+static int nest_pmus;
+
+/* Core IMC data structures and variables */
+
+static cpumask_t core_imc_cpumask;
+struct imc_pmu_ref *core_imc_refc;
+static struct imc_pmu *core_imc_pmu;
+
+/* Thread IMC data structures and variables */
+
+static DEFINE_PER_CPU(u64 *, thread_imc_mem);
+static struct imc_pmu *thread_imc_pmu;
+static int thread_imc_mem_size;
+
+struct imc_pmu *imc_event_to_pmu(struct perf_event *event)
+{
+ return container_of(event->pmu, struct imc_pmu, pmu);
+}
+
+PMU_FORMAT_ATTR(event, "config:0-40");
+PMU_FORMAT_ATTR(offset, "config:0-31");
+PMU_FORMAT_ATTR(rvalue, "config:32");
+PMU_FORMAT_ATTR(mode, "config:33-40");
+static struct attribute *imc_format_attrs[] = {
+ &format_attr_event.attr,
+ &format_attr_offset.attr,
+ &format_attr_rvalue.attr,
+ &format_attr_mode.attr,
+ NULL,
+};
+
+static struct attribute_group imc_format_group = {
+ .name = "format",
+ .attrs = imc_format_attrs,
+};
+
+/* Get the cpumask printed to a buffer "buf" */
+static ssize_t imc_pmu_cpumask_get_attr(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pmu *pmu = dev_get_drvdata(dev);
+ struct imc_pmu *imc_pmu = container_of(pmu, struct imc_pmu, pmu);
+ cpumask_t *active_mask;
+
+ switch(imc_pmu->domain){
+ case IMC_DOMAIN_NEST:
+ active_mask = &nest_imc_cpumask;
+ break;
+ case IMC_DOMAIN_CORE:
+ active_mask = &core_imc_cpumask;
+ break;
+ default:
+ return 0;
+ }
+
+ return cpumap_print_to_pagebuf(true, buf, active_mask);
+}
+
+static DEVICE_ATTR(cpumask, S_IRUGO, imc_pmu_cpumask_get_attr, NULL);
+
+static struct attribute *imc_pmu_cpumask_attrs[] = {
+ &dev_attr_cpumask.attr,
+ NULL,
+};
+
+static struct attribute_group imc_pmu_cpumask_attr_group = {
+ .attrs = imc_pmu_cpumask_attrs,
+};
+
+/* device_str_attr_create : Populate event "name" and string "str" in attribute */
+static struct attribute *device_str_attr_create(const char *name, const char *str)
+{
+ struct perf_pmu_events_attr *attr;
+
+ attr = kzalloc(sizeof(*attr), GFP_KERNEL);
+ if (!attr)
+ return NULL;
+ sysfs_attr_init(&attr->attr.attr);
+
+ attr->event_str = str;
+ attr->attr.attr.name = name;
+ attr->attr.attr.mode = 0444;
+ attr->attr.show = perf_event_sysfs_show;
+
+ return &attr->attr.attr;
+}
+
+struct imc_events *imc_parse_event(struct device_node *np, const char *scale,
+ const char *unit, const char *prefix, u32 base)
+{
+ struct imc_events *event;
+ const char *s;
+ u32 reg;
+
+ event = kzalloc(sizeof(struct imc_events), GFP_KERNEL);
+ if (!event)
+ return NULL;
+
+ if (of_property_read_u32(np, "reg", &reg))
+ goto error;
+ /* Add the base_reg value to the "reg" */
+ event->value = base + reg;
+
+ if (of_property_read_string(np, "event-name", &s))
+ goto error;
+
+ event->name = kasprintf(GFP_KERNEL, "%s%s", prefix, s);
+ if (!event->name)
+ goto error;
+
+ if (of_property_read_string(np, "scale", &s))
+ s = scale;
+
+ if (s) {
+ event->scale = kstrdup(s, GFP_KERNEL);
+ if (!event->scale)
+ goto error;
+ }
+
+ if (of_property_read_string(np, "unit", &s))
+ s = unit;
+
+ if (s) {
+ event->unit = kstrdup(s, GFP_KERNEL);
+ if (!event->unit)
+ goto error;
+ }
+
+ return event;
+error:
+ kfree(event->unit);
+ kfree(event->scale);
+ kfree(event->name);
+ kfree(event);
+
+ return NULL;
+}
+
+/*
+ * update_events_in_group: Update the "events" information in an attr_group
+ * and assign the attr_group to the pmu "pmu".
+ */
+static int update_events_in_group(struct device_node *node, struct imc_pmu *pmu)
+{
+ struct attribute_group *attr_group;
+ struct attribute **attrs, *dev_str;
+ struct device_node *np, *pmu_events;
+ struct imc_events *ev;
+ u32 handle, base_reg;
+ int i=0, j=0, ct;
+ const char *prefix, *g_scale, *g_unit;
+ const char *ev_val_str, *ev_scale_str, *ev_unit_str;
+
+ if (!of_property_read_u32(node, "events", &handle))
+ pmu_events = of_find_node_by_phandle(handle);
+ else
+ return 0;
+
+ /* Did not find any node with a given phandle */
+ if (!pmu_events)
+ return 0;
+
+ /* Get a count of number of child nodes */
+ ct = of_get_child_count(pmu_events);
+
+ /* Get the event prefix */
+ if (of_property_read_string(node, "events-prefix", &prefix))
+ return 0;
+
+ /* Get a global unit and scale data if available */
+ if (of_property_read_string(node, "scale", &g_scale))
+ g_scale = NULL;
+
+ if (of_property_read_string(node, "unit", &g_unit))
+ g_unit = NULL;
+
+ /* "reg" property gives out the base offset of the counters data */
+ of_property_read_u32(node, "reg", &base_reg);
+
+ /* Allocate memory for the events */
+ pmu->events = kcalloc(ct, sizeof(struct imc_events), GFP_KERNEL);
+ if (!pmu->events)
+ return -ENOMEM;
+
+ ct = 0;
+ /* Parse the events and update the struct */
+ for_each_child_of_node(pmu_events, np) {
+ ev = imc_parse_event(np, g_scale, g_unit, prefix, base_reg);
+ if (ev)
+ pmu->events[ct++] = ev;
+ }
+
+ /* Allocate memory for attribute group */
+ attr_group = kzalloc(sizeof(*attr_group), GFP_KERNEL);
+ if (!attr_group)
+ return -ENOMEM;
+
+ /*
+ * Allocate memory for attributes.
+ * Since we have count of events for this pmu, we also allocate
+ * memory for the scale and unit attribute for now.
+ * "ct" has the total event structs added from the events-parent node.
+ * So allocate three times the "ct" (this includes event, event_scale and
+ * event_unit).
+ */
+ attrs = kcalloc(((ct * 3) + 1), sizeof(struct attribute *), GFP_KERNEL);
+ if (!attrs) {
+ kfree(attr_group);
+ kfree(pmu->events);
+ return -ENOMEM;
+ }
+
+ attr_group->name = "events";
+ attr_group->attrs = attrs;
+ do {
+ ev_val_str = kasprintf(GFP_KERNEL, "event=0x%x", pmu->events[i]->value);
+ dev_str = device_str_attr_create(pmu->events[i]->name, ev_val_str);
+ if (!dev_str)
+ continue;
+
+ attrs[j++] = dev_str;
+ if (pmu->events[i]->scale) {
+ ev_scale_str = kasprintf(GFP_KERNEL, "%s.scale",pmu->events[i]->name);
+ dev_str = device_str_attr_create(ev_scale_str, pmu->events[i]->scale);
+ if (!dev_str)
+ continue;
+
+ attrs[j++] = dev_str;
+ }
+
+ if (pmu->events[i]->unit) {
+ ev_unit_str = kasprintf(GFP_KERNEL, "%s.unit",pmu->events[i]->name);
+ dev_str = device_str_attr_create(ev_unit_str, pmu->events[i]->unit);
+ if (!dev_str)
+ continue;
+
+ attrs[j++] = dev_str;
+ }
+ } while (++i < ct);
+
+ /* Save the event attribute */
+ pmu->attr_groups[IMC_EVENT_ATTR] = attr_group;
+
+ kfree(pmu->events);
+ return 0;
+}
+
+/* get_nest_pmu_ref: Return the imc_pmu_ref struct for the given node */
+static struct imc_pmu_ref *get_nest_pmu_ref(int cpu)
+{
+ return per_cpu(local_nest_imc_refc, cpu);
+}
+
+static void nest_change_cpu_context(int old_cpu, int new_cpu)
+{
+ struct imc_pmu **pn = per_nest_pmu_arr;
+ int i;
+
+ if (old_cpu < 0 || new_cpu < 0)
+ return;
+
+ for (i = 0; *pn && i < IMC_MAX_PMUS; i++, pn++)
+ perf_pmu_migrate_context(&(*pn)->pmu, old_cpu, new_cpu);
+}
+
+static int ppc_nest_imc_cpu_offline(unsigned int cpu)
+{
+ int nid, target = -1;
+ const struct cpumask *l_cpumask;
+ struct imc_pmu_ref *ref;
+
+ /*
+ * Check in the designated list for this cpu. Dont bother
+ * if not one of them.
+ */
+ if (!cpumask_test_and_clear_cpu(cpu, &nest_imc_cpumask))
+ return 0;
+
+ /*
+ * Now that this cpu is one of the designated,
+ * find a next cpu a) which is online and b) in same chip.
+ */
+ nid = cpu_to_node(cpu);
+ l_cpumask = cpumask_of_node(nid);
+ target = cpumask_any_but(l_cpumask, cpu);
+
+ /*
+ * Update the cpumask with the target cpu and
+ * migrate the context if needed
+ */
+ if (target >= 0 && target < nr_cpu_ids) {
+ cpumask_set_cpu(target, &nest_imc_cpumask);
+ nest_change_cpu_context(cpu, target);
+ } else {
+ opal_imc_counters_stop(OPAL_IMC_COUNTERS_NEST,
+ get_hard_smp_processor_id(cpu));
+ /*
+ * If this is the last cpu in this chip then, skip the reference
+ * count mutex lock and make the reference count on this chip zero.
+ */
+ ref = get_nest_pmu_ref(cpu);
+ if (!ref)
+ return -EINVAL;
+
+ ref->refc = 0;
+ }
+ return 0;
+}
+
+static int ppc_nest_imc_cpu_online(unsigned int cpu)
+{
+ const struct cpumask *l_cpumask;
+ static struct cpumask tmp_mask;
+ int res;
+
+ /* Get the cpumask of this node */
+ l_cpumask = cpumask_of_node(cpu_to_node(cpu));
+
+ /*
+ * If this is not the first online CPU on this node, then
+ * just return.
+ */
+ if (cpumask_and(&tmp_mask, l_cpumask, &nest_imc_cpumask))
+ return 0;
+
+ /*
+ * If this is the first online cpu on this node
+ * disable the nest counters by making an OPAL call.
+ */
+ res = opal_imc_counters_stop(OPAL_IMC_COUNTERS_NEST,
+ get_hard_smp_processor_id(cpu));
+ if (res)
+ return res;
+
+ /* Make this CPU the designated target for counter collection */
+ cpumask_set_cpu(cpu, &nest_imc_cpumask);
+ return 0;
+}
+
+static int nest_pmu_cpumask_init(void)
+{
+ return cpuhp_setup_state(CPUHP_AP_PERF_POWERPC_NEST_IMC_ONLINE,
+ "perf/powerpc/imc:online",
+ ppc_nest_imc_cpu_online,
+ ppc_nest_imc_cpu_offline);
+}
+
+static void nest_imc_counters_release(struct perf_event *event)
+{
+ int rc, node_id;
+ struct imc_pmu_ref *ref;
+
+ if (event->cpu < 0)
+ return;
+
+ node_id = cpu_to_node(event->cpu);
+
+ /*
+ * See if we need to disable the nest PMU.
+ * If no events are currently in use, then we have to take a
+ * mutex to ensure that we don't race with another task doing
+ * enable or disable the nest counters.
+ */
+ ref = get_nest_pmu_ref(event->cpu);
+ if (!ref)
+ return;
+
+ /* Take the mutex lock for this node and then decrement the reference count */
+ mutex_lock(&ref->lock);
+ if (ref->refc == 0) {
+ /*
+ * The scenario where this is true is, when perf session is
+ * started, followed by offlining of all cpus in a given node.
+ *
+ * In the cpuhotplug offline path, ppc_nest_imc_cpu_offline()
+ * function set the ref->count to zero, if the cpu which is
+ * about to offline is the last cpu in a given node and make
+ * an OPAL call to disable the engine in that node.
+ *
+ */
+ mutex_unlock(&ref->lock);
+ return;
+ }
+ ref->refc--;
+ if (ref->refc == 0) {
+ rc = opal_imc_counters_stop(OPAL_IMC_COUNTERS_NEST,
+ get_hard_smp_processor_id(event->cpu));
+ if (rc) {
+ mutex_unlock(&ref->lock);
+ pr_err("nest-imc: Unable to stop the counters for core %d\n", node_id);
+ return;
+ }
+ } else if (ref->refc < 0) {
+ WARN(1, "nest-imc: Invalid event reference count\n");
+ ref->refc = 0;
+ }
+ mutex_unlock(&ref->lock);
+}
+
+static int nest_imc_event_init(struct perf_event *event)
+{
+ int chip_id, rc, node_id;
+ u32 l_config, config = event->attr.config;
+ struct imc_mem_info *pcni;
+ struct imc_pmu *pmu;
+ struct imc_pmu_ref *ref;
+ bool flag = false;
+
+ if (event->attr.type != event->pmu->type)
+ return -ENOENT;
+
+ /* Sampling not supported */
+ if (event->hw.sample_period)
+ return -EINVAL;
+
+ /* unsupported modes and filters */
+ if (event->attr.exclude_user ||
+ event->attr.exclude_kernel ||
+ event->attr.exclude_hv ||
+ event->attr.exclude_idle ||
+ event->attr.exclude_host ||
+ event->attr.exclude_guest)
+ return -EINVAL;
+
+ if (event->cpu < 0)
+ return -EINVAL;
+
+ pmu = imc_event_to_pmu(event);
+
+ /* Sanity check for config (event offset) */
+ if ((config & IMC_EVENT_OFFSET_MASK) > pmu->counter_mem_size)
+ return -EINVAL;
+
+ /*
+ * Nest HW counter memory resides in a per-chip reserve-memory (HOMER).
+ * Get the base memory addresss for this cpu.
+ */
+ chip_id = topology_physical_package_id(event->cpu);
+ pcni = pmu->mem_info;
+ do {
+ if (pcni->id == chip_id) {
+ flag = true;
+ break;
+ }
+ pcni++;
+ } while (pcni);
+
+ if (!flag)
+ return -ENODEV;
+
+ /*
+ * Add the event offset to the base address.
+ */
+ l_config = config & IMC_EVENT_OFFSET_MASK;
+ event->hw.event_base = (u64)pcni->vbase + l_config;
+ node_id = cpu_to_node(event->cpu);
+
+ /*
+ * Get the imc_pmu_ref struct for this node.
+ * Take the mutex lock and then increment the count of nest pmu events
+ * inited.
+ */
+ ref = get_nest_pmu_ref(event->cpu);
+ if (!ref)
+ return -EINVAL;
+
+ mutex_lock(&ref->lock);
+ if (ref->refc == 0) {
+ rc = opal_imc_counters_start(OPAL_IMC_COUNTERS_NEST,
+ get_hard_smp_processor_id(event->cpu));
+ if (rc) {
+ mutex_unlock(&ref->lock);
+ pr_err("nest-imc: Unable to start the counters for node %d\n",
+ node_id);
+ return rc;
+ }
+ }
+ ++ref->refc;
+ mutex_unlock(&ref->lock);
+
+ event->destroy = nest_imc_counters_release;
+ return 0;
+}
+
+/*
+ * core_imc_mem_init : Initializes memory for the current core.
+ *
+ * Uses alloc_pages_node() and uses the returned address as an argument to
+ * an opal call to configure the pdbar. The address sent as an argument is
+ * converted to physical address before the opal call is made. This is the
+ * base address at which the core imc counters are populated.
+ */
+static int core_imc_mem_init(int cpu, int size)
+{
+ int phys_id, rc = 0, core_id = (cpu / threads_per_core);
+ struct imc_mem_info *mem_info;
+
+ /*
+ * alloc_pages_node() will allocate memory for core in the
+ * local node only.
+ */
+ phys_id = topology_physical_package_id(cpu);
+ mem_info = &core_imc_pmu->mem_info[core_id];
+ mem_info->id = core_id;
+
+ /* We need only vbase for core counters */
+ mem_info->vbase = page_address(alloc_pages_node(phys_id,
+ GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE |
+ __GFP_NOWARN, get_order(size)));
+ if (!mem_info->vbase)
+ return -ENOMEM;
+
+ /* Init the mutex */
+ core_imc_refc[core_id].id = core_id;
+ mutex_init(&core_imc_refc[core_id].lock);
+
+ rc = opal_imc_counters_init(OPAL_IMC_COUNTERS_CORE,
+ __pa((void *)mem_info->vbase),
+ get_hard_smp_processor_id(cpu));
+ if (rc) {
+ free_pages((u64)mem_info->vbase, get_order(size));
+ mem_info->vbase = NULL;
+ }
+
+ return rc;
+}
+
+static bool is_core_imc_mem_inited(int cpu)
+{
+ struct imc_mem_info *mem_info;
+ int core_id = (cpu / threads_per_core);
+
+ mem_info = &core_imc_pmu->mem_info[core_id];
+ if (!mem_info->vbase)
+ return false;
+
+ return true;
+}
+
+static int ppc_core_imc_cpu_online(unsigned int cpu)
+{
+ const struct cpumask *l_cpumask;
+ static struct cpumask tmp_mask;
+ int ret = 0;
+
+ /* Get the cpumask for this core */
+ l_cpumask = cpu_sibling_mask(cpu);
+
+ /* If a cpu for this core is already set, then, don't do anything */
+ if (cpumask_and(&tmp_mask, l_cpumask, &core_imc_cpumask))
+ return 0;
+
+ if (!is_core_imc_mem_inited(cpu)) {
+ ret = core_imc_mem_init(cpu, core_imc_pmu->counter_mem_size);
+ if (ret) {
+ pr_info("core_imc memory allocation for cpu %d failed\n", cpu);
+ return ret;
+ }
+ }
+
+ /* set the cpu in the mask */
+ cpumask_set_cpu(cpu, &core_imc_cpumask);
+ return 0;
+}
+
+static int ppc_core_imc_cpu_offline(unsigned int cpu)
+{
+ unsigned int ncpu, core_id;
+ struct imc_pmu_ref *ref;
+
+ /*
+ * clear this cpu out of the mask, if not present in the mask,
+ * don't bother doing anything.
+ */
+ if (!cpumask_test_and_clear_cpu(cpu, &core_imc_cpumask))
+ return 0;
+
+ /* Find any online cpu in that core except the current "cpu" */
+ ncpu = cpumask_any_but(cpu_sibling_mask(cpu), cpu);
+
+ if (ncpu >= 0 && ncpu < nr_cpu_ids) {
+ cpumask_set_cpu(ncpu, &core_imc_cpumask);
+ perf_pmu_migrate_context(&core_imc_pmu->pmu, cpu, ncpu);
+ } else {
+ /*
+ * If this is the last cpu in this core then, skip taking refernce
+ * count mutex lock for this core and directly zero "refc" for
+ * this core.
+ */
+ opal_imc_counters_stop(OPAL_IMC_COUNTERS_CORE,
+ get_hard_smp_processor_id(cpu));
+ core_id = cpu / threads_per_core;
+ ref = &core_imc_refc[core_id];
+ if (!ref)
+ return -EINVAL;
+
+ ref->refc = 0;
+ }
+ return 0;
+}
+
+static int core_imc_pmu_cpumask_init(void)
+{
+ return cpuhp_setup_state(CPUHP_AP_PERF_POWERPC_CORE_IMC_ONLINE,
+ "perf/powerpc/imc_core:online",
+ ppc_core_imc_cpu_online,
+ ppc_core_imc_cpu_offline);
+}
+
+static void core_imc_counters_release(struct perf_event *event)
+{
+ int rc, core_id;
+ struct imc_pmu_ref *ref;
+
+ if (event->cpu < 0)
+ return;
+ /*
+ * See if we need to disable the IMC PMU.
+ * If no events are currently in use, then we have to take a
+ * mutex to ensure that we don't race with another task doing
+ * enable or disable the core counters.
+ */
+ core_id = event->cpu / threads_per_core;
+
+ /* Take the mutex lock and decrement the refernce count for this core */
+ ref = &core_imc_refc[core_id];
+ if (!ref)
+ return;
+
+ mutex_lock(&ref->lock);
+ if (ref->refc == 0) {
+ /*
+ * The scenario where this is true is, when perf session is
+ * started, followed by offlining of all cpus in a given core.
+ *
+ * In the cpuhotplug offline path, ppc_core_imc_cpu_offline()
+ * function set the ref->count to zero, if the cpu which is
+ * about to offline is the last cpu in a given core and make
+ * an OPAL call to disable the engine in that core.
+ *
+ */
+ mutex_unlock(&ref->lock);
+ return;
+ }
+ ref->refc--;
+ if (ref->refc == 0) {
+ rc = opal_imc_counters_stop(OPAL_IMC_COUNTERS_CORE,
+ get_hard_smp_processor_id(event->cpu));
+ if (rc) {
+ mutex_unlock(&ref->lock);
+ pr_err("IMC: Unable to stop the counters for core %d\n", core_id);
+ return;
+ }
+ } else if (ref->refc < 0) {
+ WARN(1, "core-imc: Invalid event reference count\n");
+ ref->refc = 0;
+ }
+ mutex_unlock(&ref->lock);
+}
+
+static int core_imc_event_init(struct perf_event *event)
+{
+ int core_id, rc;
+ u64 config = event->attr.config;
+ struct imc_mem_info *pcmi;
+ struct imc_pmu *pmu;
+ struct imc_pmu_ref *ref;
+
+ if (event->attr.type != event->pmu->type)
+ return -ENOENT;
+
+ /* Sampling not supported */
+ if (event->hw.sample_period)
+ return -EINVAL;
+
+ /* unsupported modes and filters */
+ if (event->attr.exclude_user ||
+ event->attr.exclude_kernel ||
+ event->attr.exclude_hv ||
+ event->attr.exclude_idle ||
+ event->attr.exclude_host ||
+ event->attr.exclude_guest)
+ return -EINVAL;
+
+ if (event->cpu < 0)
+ return -EINVAL;
+
+ event->hw.idx = -1;
+ pmu = imc_event_to_pmu(event);
+
+ /* Sanity check for config (event offset) */
+ if (((config & IMC_EVENT_OFFSET_MASK) > pmu->counter_mem_size))
+ return -EINVAL;
+
+ if (!is_core_imc_mem_inited(event->cpu))
+ return -ENODEV;
+
+ core_id = event->cpu / threads_per_core;
+ pcmi = &core_imc_pmu->mem_info[core_id];
+ if ((!pcmi->vbase))
+ return -ENODEV;
+
+ /* Get the core_imc mutex for this core */
+ ref = &core_imc_refc[core_id];
+ if (!ref)
+ return -EINVAL;
+
+ /*
+ * Core pmu units are enabled only when it is used.
+ * See if this is triggered for the first time.
+ * If yes, take the mutex lock and enable the core counters.
+ * If not, just increment the count in core_imc_refc struct.
+ */
+ mutex_lock(&ref->lock);
+ if (ref->refc == 0) {
+ rc = opal_imc_counters_start(OPAL_IMC_COUNTERS_CORE,
+ get_hard_smp_processor_id(event->cpu));
+ if (rc) {
+ mutex_unlock(&ref->lock);
+ pr_err("core-imc: Unable to start the counters for core %d\n",
+ core_id);
+ return rc;
+ }
+ }
+ ++ref->refc;
+ mutex_unlock(&ref->lock);
+
+ event->hw.event_base = (u64)pcmi->vbase + (config & IMC_EVENT_OFFSET_MASK);
+ event->destroy = core_imc_counters_release;
+ return 0;
+}
+
+/*
+ * Allocates a page of memory for each of the online cpus, and write the
+ * physical base address of that page to the LDBAR for that cpu.
+ *
+ * LDBAR Register Layout:
+ *
+ * 0 4 8 12 16 20 24 28
+ * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - |
+ * | | [ ] [ Counter Address [8:50]
+ * | * Mode |
+ * | * PB Scope
+ * * Enable/Disable
+ *
+ * 32 36 40 44 48 52 56 60
+ * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - |
+ * Counter Address [8:50] ]
+ *
+ */
+static int thread_imc_mem_alloc(int cpu_id, int size)
+{
+ u64 ldbar_value, *local_mem = per_cpu(thread_imc_mem, cpu_id);
+ int phys_id = topology_physical_package_id(cpu_id);
+
+ if (!local_mem) {
+ /*
+ * This case could happen only once at start, since we dont
+ * free the memory in cpu offline path.
+ */
+ local_mem = page_address(alloc_pages_node(phys_id,
+ GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE |
+ __GFP_NOWARN, get_order(size)));
+ if (!local_mem)
+ return -ENOMEM;
+
+ per_cpu(thread_imc_mem, cpu_id) = local_mem;
+ }
+
+ ldbar_value = ((u64)local_mem & THREAD_IMC_LDBAR_MASK) | THREAD_IMC_ENABLE;
+
+ mtspr(SPRN_LDBAR, ldbar_value);
+ return 0;
+}
+
+static int ppc_thread_imc_cpu_online(unsigned int cpu)
+{
+ return thread_imc_mem_alloc(cpu, thread_imc_mem_size);
+}
+
+static int ppc_thread_imc_cpu_offline(unsigned int cpu)
+{
+ mtspr(SPRN_LDBAR, 0);
+ return 0;
+}
+
+static int thread_imc_cpu_init(void)
+{
+ return cpuhp_setup_state(CPUHP_AP_PERF_POWERPC_THREAD_IMC_ONLINE,
+ "perf/powerpc/imc_thread:online",
+ ppc_thread_imc_cpu_online,
+ ppc_thread_imc_cpu_offline);
+}
+
+void thread_imc_pmu_sched_task(struct perf_event_context *ctx,
+ bool sched_in)
+{
+ int core_id;
+ struct imc_pmu_ref *ref;
+
+ if (!is_core_imc_mem_inited(smp_processor_id()))
+ return;
+
+ core_id = smp_processor_id() / threads_per_core;
+ /*
+ * imc pmus are enabled only when it is used.
+ * See if this is triggered for the first time.
+ * If yes, take the mutex lock and enable the counters.
+ * If not, just increment the count in ref count struct.
+ */
+ ref = &core_imc_refc[core_id];
+ if (!ref)
+ return;
+
+ if (sched_in) {
+ mutex_lock(&ref->lock);
+ if (ref->refc == 0) {
+ if (opal_imc_counters_start(OPAL_IMC_COUNTERS_CORE,
+ get_hard_smp_processor_id(smp_processor_id()))) {
+ mutex_unlock(&ref->lock);
+ pr_err("thread-imc: Unable to start the counter\
+ for core %d\n", core_id);
+ return;
+ }
+ }
+ ++ref->refc;
+ mutex_unlock(&ref->lock);
+ } else {
+ mutex_lock(&ref->lock);
+ ref->refc--;
+ if (ref->refc == 0) {
+ if (opal_imc_counters_stop(OPAL_IMC_COUNTERS_CORE,
+ get_hard_smp_processor_id(smp_processor_id()))) {
+ mutex_unlock(&ref->lock);
+ pr_err("thread-imc: Unable to stop the counters\
+ for core %d\n", core_id);
+ return;
+ }
+ } else if (ref->refc < 0) {
+ ref->refc = 0;
+ }
+ mutex_unlock(&ref->lock);
+ }
+
+ return;
+}
+
+static int thread_imc_event_init(struct perf_event *event)
+{
+ u32 config = event->attr.config;
+ struct task_struct *target;
+ struct imc_pmu *pmu;
+
+ if (event->attr.type != event->pmu->type)
+ return -ENOENT;
+
+ /* Sampling not supported */
+ if (event->hw.sample_period)
+ return -EINVAL;
+
+ event->hw.idx = -1;
+ pmu = imc_event_to_pmu(event);
+
+ /* Sanity check for config offset */
+ if (((config & IMC_EVENT_OFFSET_MASK) > pmu->counter_mem_size))
+ return -EINVAL;
+
+ target = event->hw.target;
+ if (!target)
+ return -EINVAL;
+
+ event->pmu->task_ctx_nr = perf_sw_context;
+ return 0;
+}
+
+static bool is_thread_imc_pmu(struct perf_event *event)
+{
+ if (!strncmp(event->pmu->name, "thread_imc", strlen("thread_imc")))
+ return true;
+
+ return false;
+}
+
+static u64 * get_event_base_addr(struct perf_event *event)
+{
+ u64 addr;
+
+ if (is_thread_imc_pmu(event)) {
+ addr = (u64)per_cpu(thread_imc_mem, smp_processor_id());
+ return (u64 *)(addr + (event->attr.config & IMC_EVENT_OFFSET_MASK));
+ }
+
+ return (u64 *)event->hw.event_base;
+}
+
+static void thread_imc_pmu_start_txn(struct pmu *pmu,
+ unsigned int txn_flags)
+{
+ if (txn_flags & ~PERF_PMU_TXN_ADD)
+ return;
+ perf_pmu_disable(pmu);
+}
+
+static void thread_imc_pmu_cancel_txn(struct pmu *pmu)
+{
+ perf_pmu_enable(pmu);
+}
+
+static int thread_imc_pmu_commit_txn(struct pmu *pmu)
+{
+ perf_pmu_enable(pmu);
+ return 0;
+}
+
+static u64 imc_read_counter(struct perf_event *event)
+{
+ u64 *addr, data;
+
+ /*
+ * In-Memory Collection (IMC) counters are free flowing counters.
+ * So we take a snapshot of the counter value on enable and save it
+ * to calculate the delta at later stage to present the event counter
+ * value.
+ */
+ addr = get_event_base_addr(event);
+ data = be64_to_cpu(READ_ONCE(*addr));
+ local64_set(&event->hw.prev_count, data);
+
+ return data;
+}
+
+static void imc_event_update(struct perf_event *event)
+{
+ u64 counter_prev, counter_new, final_count;
+
+ counter_prev = local64_read(&event->hw.prev_count);
+ counter_new = imc_read_counter(event);
+ final_count = counter_new - counter_prev;
+
+ /* Update the delta to the event count */
+ local64_add(final_count, &event->count);
+}
+
+static void imc_event_start(struct perf_event *event, int flags)
+{
+ /*
+ * In Memory Counters are free flowing counters. HW or the microcode
+ * keeps adding to the counter offset in memory. To get event
+ * counter value, we snapshot the value here and we calculate
+ * delta at later point.
+ */
+ imc_read_counter(event);
+}
+
+static void imc_event_stop(struct perf_event *event, int flags)
+{
+ /*
+ * Take a snapshot and calculate the delta and update
+ * the event counter values.
+ */
+ imc_event_update(event);
+}
+
+static int imc_event_add(struct perf_event *event, int flags)
+{
+ if (flags & PERF_EF_START)
+ imc_event_start(event, flags);
+
+ return 0;
+}
+
+static int thread_imc_event_add(struct perf_event *event, int flags)
+{
+ if (flags & PERF_EF_START)
+ imc_event_start(event, flags);
+
+ /* Enable the sched_task to start the engine */
+ perf_sched_cb_inc(event->ctx->pmu);
+ return 0;
+}
+
+static void thread_imc_event_del(struct perf_event *event, int flags)
+{
+ /*
+ * Take a snapshot and calculate the delta and update
+ * the event counter values.
+ */
+ imc_event_update(event);
+ perf_sched_cb_dec(event->ctx->pmu);
+}
+
+/* update_pmu_ops : Populate the appropriate operations for "pmu" */
+static int update_pmu_ops(struct imc_pmu *pmu)
+{
+ pmu->pmu.task_ctx_nr = perf_invalid_context;
+ pmu->pmu.add = imc_event_add;
+ pmu->pmu.del = imc_event_stop;
+ pmu->pmu.start = imc_event_start;
+ pmu->pmu.stop = imc_event_stop;
+ pmu->pmu.read = imc_event_update;
+ pmu->pmu.attr_groups = pmu->attr_groups;
+ pmu->attr_groups[IMC_FORMAT_ATTR] = &imc_format_group;
+
+ switch (pmu->domain) {
+ case IMC_DOMAIN_NEST:
+ pmu->pmu.event_init = nest_imc_event_init;
+ pmu->attr_groups[IMC_CPUMASK_ATTR] = &imc_pmu_cpumask_attr_group;
+ break;
+ case IMC_DOMAIN_CORE:
+ pmu->pmu.event_init = core_imc_event_init;
+ pmu->attr_groups[IMC_CPUMASK_ATTR] = &imc_pmu_cpumask_attr_group;
+ break;
+ case IMC_DOMAIN_THREAD:
+ pmu->pmu.event_init = thread_imc_event_init;
+ pmu->pmu.sched_task = thread_imc_pmu_sched_task;
+ pmu->pmu.add = thread_imc_event_add;
+ pmu->pmu.del = thread_imc_event_del;
+ pmu->pmu.start_txn = thread_imc_pmu_start_txn;
+ pmu->pmu.cancel_txn = thread_imc_pmu_cancel_txn;
+ pmu->pmu.commit_txn = thread_imc_pmu_commit_txn;
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+/* init_nest_pmu_ref: Initialize the imc_pmu_ref struct for all the nodes */
+static int init_nest_pmu_ref(void)
+{
+ int nid, i, cpu;
+
+ nest_imc_refc = kcalloc(num_possible_nodes(), sizeof(*nest_imc_refc),
+ GFP_KERNEL);
+
+ if (!nest_imc_refc)
+ return -ENOMEM;
+
+ i = 0;
+ for_each_node(nid) {
+ /*
+ * Mutex lock to avoid races while tracking the number of
+ * sessions using the chip's nest pmu units.
+ */
+ mutex_init(&nest_imc_refc[i].lock);
+
+ /*
+ * Loop to init the "id" with the node_id. Variable "i" initialized to
+ * 0 and will be used as index to the array. "i" will not go off the
+ * end of the array since the "for_each_node" loops for "N_POSSIBLE"
+ * nodes only.
+ */
+ nest_imc_refc[i++].id = nid;
+ }
+
+ /*
+ * Loop to init the per_cpu "local_nest_imc_refc" with the proper
+ * "nest_imc_refc" index. This makes get_nest_pmu_ref() alot simple.
+ */
+ for_each_possible_cpu(cpu) {
+ nid = cpu_to_node(cpu);
+ for (i = 0; i < num_possible_nodes(); i++) {
+ if (nest_imc_refc[i].id == nid) {
+ per_cpu(local_nest_imc_refc, cpu) = &nest_imc_refc[i];
+ break;
+ }
+ }
+ }
+ return 0;
+}
+
+static void cleanup_all_core_imc_memory(void)
+{
+ int i, nr_cores = num_present_cpus() / threads_per_core;
+ struct imc_mem_info *ptr = core_imc_pmu->mem_info;
+ int size = core_imc_pmu->counter_mem_size;
+
+ /* mem_info will never be NULL */
+ for (i = 0; i < nr_cores; i++) {
+ if (ptr[i].vbase)
+ free_pages((u64)ptr->vbase, get_order(size));
+ }
+
+ kfree(ptr);
+ kfree(core_imc_refc);
+}
+
+static void thread_imc_ldbar_disable(void *dummy)
+{
+ /*
+ * By Zeroing LDBAR, we disable thread-imc
+ * updates.
+ */
+ mtspr(SPRN_LDBAR, 0);
+}
+
+void thread_imc_disable(void)
+{
+ on_each_cpu(thread_imc_ldbar_disable, NULL, 1);
+}
+
+static void cleanup_all_thread_imc_memory(void)
+{
+ int i, order = get_order(thread_imc_mem_size);
+
+ for_each_online_cpu(i) {
+ if (per_cpu(thread_imc_mem, i))
+ free_pages((u64)per_cpu(thread_imc_mem, i), order);
+
+ }
+}
+
+/*
+ * Common function to unregister cpu hotplug callback and
+ * free the memory.
+ * TODO: Need to handle pmu unregistering, which will be
+ * done in followup series.
+ */
+static void imc_common_cpuhp_mem_free(struct imc_pmu *pmu_ptr)
+{
+ if (pmu_ptr->domain == IMC_DOMAIN_NEST) {
+ mutex_lock(&nest_init_lock);
+ if (nest_pmus == 1) {
+ cpuhp_remove_state(CPUHP_AP_PERF_POWERPC_NEST_IMC_ONLINE);
+ kfree(nest_imc_refc);
+ }
+
+ if (nest_pmus > 0)
+ nest_pmus--;
+ mutex_unlock(&nest_init_lock);
+ }
+
+ /* Free core_imc memory */
+ if (pmu_ptr->domain == IMC_DOMAIN_CORE) {
+ cpuhp_remove_state(CPUHP_AP_PERF_POWERPC_CORE_IMC_ONLINE);
+ cleanup_all_core_imc_memory();
+ }
+
+ /* Free thread_imc memory */
+ if (pmu_ptr->domain == IMC_DOMAIN_THREAD) {
+ cpuhp_remove_state(CPUHP_AP_PERF_POWERPC_THREAD_IMC_ONLINE);
+ cleanup_all_thread_imc_memory();
+ }
+
+ /* Only free the attr_groups which are dynamically allocated */
+ if (pmu_ptr->attr_groups[IMC_EVENT_ATTR])
+ kfree(pmu_ptr->attr_groups[IMC_EVENT_ATTR]->attrs);
+ kfree(pmu_ptr->attr_groups[IMC_EVENT_ATTR]);
+ kfree(pmu_ptr);
+ return;
+}
+
+
+/*
+ * imc_mem_init : Function to support memory allocation for core imc.
+ */
+static int imc_mem_init(struct imc_pmu *pmu_ptr, struct device_node *parent,
+ int pmu_index)
+{
+ const char *s;
+ int nr_cores, cpu, res;
+
+ if (of_property_read_string(parent, "name", &s))
+ return -ENODEV;
+
+ switch (pmu_ptr->domain) {
+ case IMC_DOMAIN_NEST:
+ /* Update the pmu name */
+ pmu_ptr->pmu.name = kasprintf(GFP_KERNEL, "%s%s_imc", "nest_", s);
+ if (!pmu_ptr->pmu.name)
+ return -ENOMEM;
+
+ /* Needed for hotplug/migration */
+ per_nest_pmu_arr[pmu_index] = pmu_ptr;
+ break;
+ case IMC_DOMAIN_CORE:
+ /* Update the pmu name */
+ pmu_ptr->pmu.name = kasprintf(GFP_KERNEL, "%s%s", s, "_imc");
+ if (!pmu_ptr->pmu.name)
+ return -ENOMEM;
+
+ nr_cores = num_present_cpus() / threads_per_core;
+ pmu_ptr->mem_info = kcalloc(nr_cores, sizeof(struct imc_mem_info),
+ GFP_KERNEL);
+
+ if (!pmu_ptr->mem_info)
+ return -ENOMEM;
+
+ core_imc_refc = kcalloc(nr_cores, sizeof(struct imc_pmu_ref),
+ GFP_KERNEL);
+
+ if (!core_imc_refc)
+ return -ENOMEM;
+
+ core_imc_pmu = pmu_ptr;
+ break;
+ case IMC_DOMAIN_THREAD:
+ /* Update the pmu name */
+ pmu_ptr->pmu.name = kasprintf(GFP_KERNEL, "%s%s", s, "_imc");
+ if (!pmu_ptr->pmu.name)
+ return -ENOMEM;
+
+ thread_imc_mem_size = pmu_ptr->counter_mem_size;
+ for_each_online_cpu(cpu) {
+ res = thread_imc_mem_alloc(cpu, pmu_ptr->counter_mem_size);
+ if (res)
+ return res;
+ }
+
+ thread_imc_pmu = pmu_ptr;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/*
+ * init_imc_pmu : Setup and register the IMC pmu device.
+ *
+ * @parent: Device tree unit node
+ * @pmu_ptr: memory allocated for this pmu
+ * @pmu_idx: Count of nest pmc registered
+ *
+ * init_imc_pmu() setup pmu cpumask and registers for a cpu hotplug callback.
+ * Handles failure cases and accordingly frees memory.
+ */
+int init_imc_pmu(struct device_node *parent, struct imc_pmu *pmu_ptr, int pmu_idx)
+{
+ int ret;
+
+ ret = imc_mem_init(pmu_ptr, parent, pmu_idx);
+ if (ret)
+ goto err_free;
+
+ switch (pmu_ptr->domain) {
+ case IMC_DOMAIN_NEST:
+ /*
+ * Nest imc pmu need only one cpu per chip, we initialize the
+ * cpumask for the first nest imc pmu and use the same for the
+ * rest. To handle the cpuhotplug callback unregister, we track
+ * the number of nest pmus in "nest_pmus".
+ */
+ mutex_lock(&nest_init_lock);
+ if (nest_pmus == 0) {
+ ret = init_nest_pmu_ref();
+ if (ret) {
+ mutex_unlock(&nest_init_lock);
+ goto err_free;
+ }
+ /* Register for cpu hotplug notification. */
+ ret = nest_pmu_cpumask_init();
+ if (ret) {
+ mutex_unlock(&nest_init_lock);
+ goto err_free;
+ }
+ }
+ nest_pmus++;
+ mutex_unlock(&nest_init_lock);
+ break;
+ case IMC_DOMAIN_CORE:
+ ret = core_imc_pmu_cpumask_init();
+ if (ret) {
+ cleanup_all_core_imc_memory();
+ return ret;
+ }
+
+ break;
+ case IMC_DOMAIN_THREAD:
+ ret = thread_imc_cpu_init();
+ if (ret) {
+ cleanup_all_thread_imc_memory();
+ return ret;
+ }
+
+ break;
+ default:
+ return -1; /* Unknown domain */
+ }
+
+ ret = update_events_in_group(parent, pmu_ptr);
+ if (ret)
+ goto err_free;
+
+ ret = update_pmu_ops(pmu_ptr);
+ if (ret)
+ goto err_free;
+
+ ret = perf_pmu_register(&pmu_ptr->pmu, pmu_ptr->pmu.name, -1);
+ if (ret)
+ goto err_free;
+
+ pr_info("%s performance monitor hardware support registered\n",
+ pmu_ptr->pmu.name);
+
+ return 0;
+
+err_free:
+ imc_common_cpuhp_mem_free(pmu_ptr);
+ return ret;
+}
diff --git a/arch/powerpc/perf/isa207-common.c b/arch/powerpc/perf/isa207-common.c
index 8125160be7bc..2efee3f196f5 100644
--- a/arch/powerpc/perf/isa207-common.c
+++ b/arch/powerpc/perf/isa207-common.c
@@ -90,14 +90,16 @@ static void mmcra_sdar_mode(u64 event, unsigned long *mmcra)
* MMCRA[SDAR_MODE] will be set to 0b01
* For rest
* MMCRA[SDAR_MODE] will be set from event code.
+ * If sdar_mode from event is zero, default to 0b01. Hardware
+ * requires that we set a non-zero value.
*/
if (cpu_has_feature(CPU_FTR_ARCH_300)) {
if (is_event_marked(event) || (*mmcra & MMCRA_SAMPLE_ENABLE))
*mmcra &= MMCRA_SDAR_MODE_NO_UPDATES;
- else if (!cpu_has_feature(CPU_FTR_POWER9_DD1))
+ else if (!cpu_has_feature(CPU_FTR_POWER9_DD1) && p9_SDAR_MODE(event))
*mmcra |= p9_SDAR_MODE(event) << MMCRA_SDAR_MODE_SHIFT;
- else if (cpu_has_feature(CPU_FTR_POWER9_DD1))
- *mmcra |= MMCRA_SDAR_MODE_TLB;
+ else
+ *mmcra |= MMCRA_SDAR_MODE_DCACHE;
} else
*mmcra |= MMCRA_SDAR_MODE_TLB;
}
@@ -486,8 +488,8 @@ static int find_alternative(u64 event, const unsigned int ev_alt[][MAX_ALT], int
return -1;
}
-int isa207_get_alternatives(u64 event, u64 alt[],
- const unsigned int ev_alt[][MAX_ALT], int size)
+int isa207_get_alternatives(u64 event, u64 alt[], int size, unsigned int flags,
+ const unsigned int ev_alt[][MAX_ALT])
{
int i, j, num_alt = 0;
u64 alt_event;
@@ -503,5 +505,30 @@ int isa207_get_alternatives(u64 event, u64 alt[],
}
}
+ if (flags & PPMU_ONLY_COUNT_RUN) {
+ /*
+ * We're only counting in RUN state, so PM_CYC is equivalent to
+ * PM_RUN_CYC and PM_INST_CMPL === PM_RUN_INST_CMPL.
+ */
+ j = num_alt;
+ for (i = 0; i < num_alt; ++i) {
+ switch (alt[i]) {
+ case 0x1e: /* PMC_CYC */
+ alt[j++] = 0x600f4; /* PM_RUN_CYC */
+ break;
+ case 0x600f4:
+ alt[j++] = 0x1e;
+ break;
+ case 0x2: /* PM_INST_CMPL */
+ alt[j++] = 0x500fa; /* PM_RUN_INST_CMPL */
+ break;
+ case 0x500fa:
+ alt[j++] = 0x2;
+ break;
+ }
+ }
+ num_alt = j;
+ }
+
return num_alt;
}
diff --git a/arch/powerpc/perf/isa207-common.h b/arch/powerpc/perf/isa207-common.h
index 8acbe6e802c7..6c737d675792 100644
--- a/arch/powerpc/perf/isa207-common.h
+++ b/arch/powerpc/perf/isa207-common.h
@@ -247,6 +247,7 @@
#define MMCRA_SDAR_MODE_SHIFT 42
#define MMCRA_SDAR_MODE_TLB (1ull << MMCRA_SDAR_MODE_SHIFT)
#define MMCRA_SDAR_MODE_NO_UPDATES ~(0x3ull << MMCRA_SDAR_MODE_SHIFT)
+#define MMCRA_SDAR_MODE_DCACHE (2ull << MMCRA_SDAR_MODE_SHIFT)
#define MMCRA_IFM_SHIFT 30
#define MMCRA_THR_CTR_MANT_SHIFT 19
#define MMCRA_THR_CTR_MANT_MASK 0x7Ful
@@ -287,8 +288,8 @@ int isa207_compute_mmcr(u64 event[], int n_ev,
unsigned int hwc[], unsigned long mmcr[],
struct perf_event *pevents[]);
void isa207_disable_pmc(unsigned int pmc, unsigned long mmcr[]);
-int isa207_get_alternatives(u64 event, u64 alt[],
- const unsigned int ev_alt[][MAX_ALT], int size);
+int isa207_get_alternatives(u64 event, u64 alt[], int size, unsigned int flags,
+ const unsigned int ev_alt[][MAX_ALT]);
void isa207_get_mem_data_src(union perf_mem_data_src *dsrc, u32 flags,
struct pt_regs *regs);
void isa207_get_mem_weight(u64 *weight);
diff --git a/arch/powerpc/perf/power8-pmu.c b/arch/powerpc/perf/power8-pmu.c
index 5463516e369b..c9356955cab4 100644
--- a/arch/powerpc/perf/power8-pmu.c
+++ b/arch/powerpc/perf/power8-pmu.c
@@ -50,34 +50,11 @@ static const unsigned int event_alternatives[][MAX_ALT] = {
static int power8_get_alternatives(u64 event, unsigned int flags, u64 alt[])
{
- int i, j, num_alt = 0;
-
- num_alt = isa207_get_alternatives(event, alt, event_alternatives,
- (int)ARRAY_SIZE(event_alternatives));
- if (flags & PPMU_ONLY_COUNT_RUN) {
- /*
- * We're only counting in RUN state, so PM_CYC is equivalent to
- * PM_RUN_CYC and PM_INST_CMPL === PM_RUN_INST_CMPL.
- */
- j = num_alt;
- for (i = 0; i < num_alt; ++i) {
- switch (alt[i]) {
- case PM_CYC:
- alt[j++] = PM_RUN_CYC;
- break;
- case PM_RUN_CYC:
- alt[j++] = PM_CYC;
- break;
- case PM_INST_CMPL:
- alt[j++] = PM_RUN_INST_CMPL;
- break;
- case PM_RUN_INST_CMPL:
- alt[j++] = PM_INST_CMPL;
- break;
- }
- }
- num_alt = j;
- }
+ int num_alt = 0;
+
+ num_alt = isa207_get_alternatives(event, alt,
+ ARRAY_SIZE(event_alternatives), flags,
+ event_alternatives);
return num_alt;
}
diff --git a/arch/powerpc/perf/power9-events-list.h b/arch/powerpc/perf/power9-events-list.h
index 71a6bfee5c02..e99c6bf4d391 100644
--- a/arch/powerpc/perf/power9-events-list.h
+++ b/arch/powerpc/perf/power9-events-list.h
@@ -16,13 +16,16 @@ EVENT(PM_CYC, 0x0001e)
EVENT(PM_ICT_NOSLOT_CYC, 0x100f8)
EVENT(PM_CMPLU_STALL, 0x1e054)
EVENT(PM_INST_CMPL, 0x00002)
-EVENT(PM_BRU_CMPL, 0x10012)
+EVENT(PM_BR_CMPL, 0x4d05e)
EVENT(PM_BR_MPRED_CMPL, 0x400f6)
/* All L1 D cache load references counted at finish, gated by reject */
EVENT(PM_LD_REF_L1, 0x100fc)
/* Load Missed L1 */
EVENT(PM_LD_MISS_L1_FIN, 0x2c04e)
+EVENT(PM_LD_MISS_L1, 0x3e054)
+/* Alternate event code for PM_LD_MISS_L1 */
+EVENT(PM_LD_MISS_L1_ALT, 0x400f0)
/* Store Missed L1 */
EVENT(PM_ST_MISS_L1, 0x300f0)
/* L1 cache data prefetches */
@@ -51,8 +54,18 @@ EVENT(PM_DTLB_MISS, 0x300fc)
EVENT(PM_ITLB_MISS, 0x400fc)
/* Run_Instructions */
EVENT(PM_RUN_INST_CMPL, 0x500fa)
+/* Alternate event code for PM_RUN_INST_CMPL */
+EVENT(PM_RUN_INST_CMPL_ALT, 0x400fa)
/* Run_cycles */
EVENT(PM_RUN_CYC, 0x600f4)
+/* Alternate event code for Run_cycles */
+EVENT(PM_RUN_CYC_ALT, 0x200f4)
/* Instruction Dispatched */
EVENT(PM_INST_DISP, 0x200f2)
EVENT(PM_INST_DISP_ALT, 0x300f2)
+/* Alternate Branch event code */
+EVENT(PM_BR_CMPL_ALT, 0x10012)
+/* Branch event that are not strongly biased */
+EVENT(PM_BR_2PATH, 0x20036)
+/* ALternate branch event that are not strongly biased */
+EVENT(PM_BR_2PATH_ALT, 0x40036)
diff --git a/arch/powerpc/perf/power9-pmu.c b/arch/powerpc/perf/power9-pmu.c
index bb28e1a41257..24b5b5b7a206 100644
--- a/arch/powerpc/perf/power9-pmu.c
+++ b/arch/powerpc/perf/power9-pmu.c
@@ -107,14 +107,19 @@ extern struct attribute_group isa207_pmu_format_group;
/* Table of alternatives, sorted by column 0 */
static const unsigned int power9_event_alternatives[][MAX_ALT] = {
{ PM_INST_DISP, PM_INST_DISP_ALT },
+ { PM_RUN_CYC_ALT, PM_RUN_CYC },
+ { PM_RUN_INST_CMPL_ALT, PM_RUN_INST_CMPL },
+ { PM_LD_MISS_L1, PM_LD_MISS_L1_ALT },
+ { PM_BR_2PATH, PM_BR_2PATH_ALT },
};
static int power9_get_alternatives(u64 event, unsigned int flags, u64 alt[])
{
int num_alt = 0;
- num_alt = isa207_get_alternatives(event, alt, power9_event_alternatives,
- (int)ARRAY_SIZE(power9_event_alternatives));
+ num_alt = isa207_get_alternatives(event, alt,
+ ARRAY_SIZE(power9_event_alternatives), flags,
+ power9_event_alternatives);
return num_alt;
}
@@ -123,7 +128,7 @@ GENERIC_EVENT_ATTR(cpu-cycles, PM_CYC);
GENERIC_EVENT_ATTR(stalled-cycles-frontend, PM_ICT_NOSLOT_CYC);
GENERIC_EVENT_ATTR(stalled-cycles-backend, PM_CMPLU_STALL);
GENERIC_EVENT_ATTR(instructions, PM_INST_CMPL);
-GENERIC_EVENT_ATTR(branch-instructions, PM_BRU_CMPL);
+GENERIC_EVENT_ATTR(branch-instructions, PM_BR_CMPL);
GENERIC_EVENT_ATTR(branch-misses, PM_BR_MPRED_CMPL);
GENERIC_EVENT_ATTR(cache-references, PM_LD_REF_L1);
GENERIC_EVENT_ATTR(cache-misses, PM_LD_MISS_L1_FIN);
@@ -141,7 +146,7 @@ CACHE_EVENT_ATTR(LLC-prefetches, PM_L3_PREF_ALL);
CACHE_EVENT_ATTR(LLC-store-misses, PM_L2_ST_MISS);
CACHE_EVENT_ATTR(LLC-stores, PM_L2_ST);
CACHE_EVENT_ATTR(branch-load-misses, PM_BR_MPRED_CMPL);
-CACHE_EVENT_ATTR(branch-loads, PM_BRU_CMPL);
+CACHE_EVENT_ATTR(branch-loads, PM_BR_CMPL);
CACHE_EVENT_ATTR(dTLB-load-misses, PM_DTLB_MISS);
CACHE_EVENT_ATTR(iTLB-load-misses, PM_ITLB_MISS);
@@ -150,7 +155,7 @@ static struct attribute *power9_events_attr[] = {
GENERIC_EVENT_PTR(PM_ICT_NOSLOT_CYC),
GENERIC_EVENT_PTR(PM_CMPLU_STALL),
GENERIC_EVENT_PTR(PM_INST_CMPL),
- GENERIC_EVENT_PTR(PM_BRU_CMPL),
+ GENERIC_EVENT_PTR(PM_BR_CMPL),
GENERIC_EVENT_PTR(PM_BR_MPRED_CMPL),
GENERIC_EVENT_PTR(PM_LD_REF_L1),
GENERIC_EVENT_PTR(PM_LD_MISS_L1_FIN),
@@ -167,7 +172,7 @@ static struct attribute *power9_events_attr[] = {
CACHE_EVENT_PTR(PM_L2_ST_MISS),
CACHE_EVENT_PTR(PM_L2_ST),
CACHE_EVENT_PTR(PM_BR_MPRED_CMPL),
- CACHE_EVENT_PTR(PM_BRU_CMPL),
+ CACHE_EVENT_PTR(PM_BR_CMPL),
CACHE_EVENT_PTR(PM_DTLB_MISS),
CACHE_EVENT_PTR(PM_ITLB_MISS),
NULL
@@ -231,7 +236,7 @@ static int power9_generic_events_dd1[] = {
[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = PM_ICT_NOSLOT_CYC,
[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = PM_CMPLU_STALL,
[PERF_COUNT_HW_INSTRUCTIONS] = PM_INST_DISP,
- [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = PM_BRU_CMPL,
+ [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = PM_BR_CMPL_ALT,
[PERF_COUNT_HW_BRANCH_MISSES] = PM_BR_MPRED_CMPL,
[PERF_COUNT_HW_CACHE_REFERENCES] = PM_LD_REF_L1,
[PERF_COUNT_HW_CACHE_MISSES] = PM_LD_MISS_L1_FIN,
@@ -242,7 +247,7 @@ static int power9_generic_events[] = {
[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = PM_ICT_NOSLOT_CYC,
[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = PM_CMPLU_STALL,
[PERF_COUNT_HW_INSTRUCTIONS] = PM_INST_CMPL,
- [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = PM_BRU_CMPL,
+ [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = PM_BR_CMPL,
[PERF_COUNT_HW_BRANCH_MISSES] = PM_BR_MPRED_CMPL,
[PERF_COUNT_HW_CACHE_REFERENCES] = PM_LD_REF_L1,
[PERF_COUNT_HW_CACHE_MISSES] = PM_LD_MISS_L1_FIN,
@@ -368,7 +373,7 @@ static int power9_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = {
},
[ C(BPU) ] = {
[ C(OP_READ) ] = {
- [ C(RESULT_ACCESS) ] = PM_BRU_CMPL,
+ [ C(RESULT_ACCESS) ] = PM_BR_CMPL,
[ C(RESULT_MISS) ] = PM_BR_MPRED_CMPL,
},
[ C(OP_WRITE) ] = {
@@ -453,6 +458,12 @@ static int __init init_power9_pmu(void)
* sampling scenarios in power9 DD1, instead use PM_INST_DISP.
*/
EVENT_VAR(PM_INST_CMPL, _g).id = PM_INST_DISP;
+ /*
+ * Power9 DD1 should use PM_BR_CMPL_ALT event code for
+ * "branches" to provide correct counter value.
+ */
+ EVENT_VAR(PM_BR_CMPL, _g).id = PM_BR_CMPL_ALT;
+ EVENT_VAR(PM_BR_CMPL, _c).id = PM_BR_CMPL_ALT;
rc = register_power_pmu(&power9_isa207_pmu);
} else {
rc = register_power_pmu(&power9_pmu);
diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig
index 9b0afe935cc1..01cb109ebf17 100644
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
@@ -199,6 +199,18 @@ config CURRITUCK
help
This option enables support for the IBM Currituck (476fpe) evaluation board
+config FSP2
+ bool "IBM FSP2 (476fpe) Support"
+ depends on PPC_47x
+ default n
+ select 476FPE
+ select IBM_EMAC_EMAC4 if IBM_EMAC
+ select IBM_EMAC_RGMII if IBM_EMAC
+ select COMMON_CLK
+ select DEFAULT_UIMAGE
+ help
+ This option enables support for the IBM FSP2 (476fpe) board
+
config AKEBONO
bool "IBM Akebono (476gtr) Support"
depends on PPC_47x
diff --git a/arch/powerpc/platforms/44x/Makefile b/arch/powerpc/platforms/44x/Makefile
index 26d35b5941f7..2c5651992369 100644
--- a/arch/powerpc/platforms/44x/Makefile
+++ b/arch/powerpc/platforms/44x/Makefile
@@ -1,6 +1,6 @@
-obj-$(CONFIG_44x) += misc_44x.o
+obj-y += misc_44x.o machine_check.o
ifneq ($(CONFIG_PPC4xx_CPM),y)
-obj-$(CONFIG_44x) += idle.o
+obj-y += idle.o
endif
obj-$(CONFIG_PPC44x_SIMPLE) += ppc44x_simple.o
obj-$(CONFIG_EBONY) += ebony.o
@@ -12,3 +12,4 @@ obj-$(CONFIG_ISS4xx) += iss4xx.o
obj-$(CONFIG_CANYONLANDS)+= canyonlands.o
obj-$(CONFIG_CURRITUCK) += ppc476.o
obj-$(CONFIG_AKEBONO) += ppc476.o
+obj-$(CONFIG_FSP2) += fsp2.o
diff --git a/arch/powerpc/platforms/44x/fsp2.c b/arch/powerpc/platforms/44x/fsp2.c
new file mode 100644
index 000000000000..92e98048404f
--- /dev/null
+++ b/arch/powerpc/platforms/44x/fsp2.c
@@ -0,0 +1,62 @@
+/*
+ * FSP-2 board specific routines
+ *
+ * Based on earlier code:
+ * Matt Porter <mporter@kernel.crashing.org>
+ * Copyright 2002-2005 MontaVista Software Inc.
+ *
+ * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
+ * Copyright (c) 2003-2005 Zultys Technologies
+ *
+ * Rewritten and ported to the merged powerpc tree:
+ * Copyright 2007 David Gibson <dwg@au1.ibm.com>, IBM Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/init.h>
+#include <linux/of_platform.h>
+#include <linux/rtc.h>
+
+#include <asm/machdep.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <asm/time.h>
+#include <asm/uic.h>
+#include <asm/ppc4xx.h>
+
+static __initdata struct of_device_id fsp2_of_bus[] = {
+ { .compatible = "ibm,plb4", },
+ { .compatible = "ibm,plb6", },
+ { .compatible = "ibm,opb", },
+ {},
+};
+
+static int __init fsp2_device_probe(void)
+{
+ of_platform_bus_probe(NULL, fsp2_of_bus, NULL);
+ return 0;
+}
+machine_device_initcall(fsp2, fsp2_device_probe);
+
+static int __init fsp2_probe(void)
+{
+ unsigned long root = of_get_flat_dt_root();
+
+ if (!of_flat_dt_is_compatible(root, "ibm,fsp2"))
+ return 0;
+ return 1;
+}
+
+define_machine(fsp2) {
+ .name = "FSP-2",
+ .probe = fsp2_probe,
+ .progress = udbg_progress,
+ .init_IRQ = uic_init_tree,
+ .get_irq = uic_get_irq,
+ .restart = ppc4xx_reset_system,
+ .calibrate_decr = generic_calibrate_decr,
+};
diff --git a/arch/powerpc/platforms/44x/machine_check.c b/arch/powerpc/platforms/44x/machine_check.c
new file mode 100644
index 000000000000..034d70d6d335
--- /dev/null
+++ b/arch/powerpc/platforms/44x/machine_check.c
@@ -0,0 +1,89 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/printk.h>
+#include <linux/ptrace.h>
+
+#include <asm/reg.h>
+
+int machine_check_440A(struct pt_regs *regs)
+{
+ unsigned long reason = regs->dsisr;
+
+ printk("Machine check in kernel mode.\n");
+ if (reason & ESR_IMCP){
+ printk("Instruction Synchronous Machine Check exception\n");
+ mtspr(SPRN_ESR, reason & ~ESR_IMCP);
+ }
+ else {
+ u32 mcsr = mfspr(SPRN_MCSR);
+ if (mcsr & MCSR_IB)
+ printk("Instruction Read PLB Error\n");
+ if (mcsr & MCSR_DRB)
+ printk("Data Read PLB Error\n");
+ if (mcsr & MCSR_DWB)
+ printk("Data Write PLB Error\n");
+ if (mcsr & MCSR_TLBP)
+ printk("TLB Parity Error\n");
+ if (mcsr & MCSR_ICP){
+ flush_instruction_cache();
+ printk("I-Cache Parity Error\n");
+ }
+ if (mcsr & MCSR_DCSP)
+ printk("D-Cache Search Parity Error\n");
+ if (mcsr & MCSR_DCFP)
+ printk("D-Cache Flush Parity Error\n");
+ if (mcsr & MCSR_IMPE)
+ printk("Machine Check exception is imprecise\n");
+
+ /* Clear MCSR */
+ mtspr(SPRN_MCSR, mcsr);
+ }
+ return 0;
+}
+
+#ifdef CONFIG_PPC_47x
+int machine_check_47x(struct pt_regs *regs)
+{
+ unsigned long reason = regs->dsisr;
+ u32 mcsr;
+
+ printk(KERN_ERR "Machine check in kernel mode.\n");
+ if (reason & ESR_IMCP) {
+ printk(KERN_ERR "Instruction Synchronous Machine Check exception\n");
+ mtspr(SPRN_ESR, reason & ~ESR_IMCP);
+ return 0;
+ }
+ mcsr = mfspr(SPRN_MCSR);
+ if (mcsr & MCSR_IB)
+ printk(KERN_ERR "Instruction Read PLB Error\n");
+ if (mcsr & MCSR_DRB)
+ printk(KERN_ERR "Data Read PLB Error\n");
+ if (mcsr & MCSR_DWB)
+ printk(KERN_ERR "Data Write PLB Error\n");
+ if (mcsr & MCSR_TLBP)
+ printk(KERN_ERR "TLB Parity Error\n");
+ if (mcsr & MCSR_ICP) {
+ flush_instruction_cache();
+ printk(KERN_ERR "I-Cache Parity Error\n");
+ }
+ if (mcsr & MCSR_DCSP)
+ printk(KERN_ERR "D-Cache Search Parity Error\n");
+ if (mcsr & PPC47x_MCSR_GPR)
+ printk(KERN_ERR "GPR Parity Error\n");
+ if (mcsr & PPC47x_MCSR_FPR)
+ printk(KERN_ERR "FPR Parity Error\n");
+ if (mcsr & PPC47x_MCSR_IPR)
+ printk(KERN_ERR "Machine Check exception is imprecise\n");
+
+ /* Clear MCSR */
+ mtspr(SPRN_MCSR, mcsr);
+
+ return 0;
+}
+#endif /* CONFIG_PPC_47x */
diff --git a/arch/powerpc/platforms/4xx/Makefile b/arch/powerpc/platforms/4xx/Makefile
new file mode 100644
index 000000000000..9779c32db34e
--- /dev/null
+++ b/arch/powerpc/platforms/4xx/Makefile
@@ -0,0 +1,8 @@
+obj-y += uic.o machine_check.o
+obj-$(CONFIG_PPC4xx_OCM) += ocm.o
+obj-$(CONFIG_4xx_SOC) += soc.o
+obj-$(CONFIG_PCI) += pci.o
+obj-$(CONFIG_PPC4xx_HSTA_MSI) += hsta_msi.o
+obj-$(CONFIG_PPC4xx_MSI) += msi.o
+obj-$(CONFIG_PPC4xx_CPM) += cpm.o
+obj-$(CONFIG_PPC4xx_GPIO) += gpio.o
diff --git a/arch/powerpc/platforms/4xx/cpm.c b/arch/powerpc/platforms/4xx/cpm.c
new file mode 100644
index 000000000000..53ff81ca8a3c
--- /dev/null
+++ b/arch/powerpc/platforms/4xx/cpm.c
@@ -0,0 +1,346 @@
+/*
+ * PowerPC 4xx Clock and Power Management
+ *
+ * Copyright (C) 2010, Applied Micro Circuits Corporation
+ * Victor Gallardo (vgallardo@apm.com)
+ *
+ * Based on arch/powerpc/platforms/44x/idle.c:
+ * Jerone Young <jyoung5@us.ibm.com>
+ * Copyright 2008 IBM Corp.
+ *
+ * Based on arch/powerpc/sysdev/fsl_pmc.c:
+ * Anton Vorontsov <avorontsov@ru.mvista.com>
+ * Copyright 2009 MontaVista Software, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/of_platform.h>
+#include <linux/sysfs.h>
+#include <linux/cpu.h>
+#include <linux/suspend.h>
+#include <asm/dcr.h>
+#include <asm/dcr-native.h>
+#include <asm/machdep.h>
+
+#define CPM_ER 0
+#define CPM_FR 1
+#define CPM_SR 2
+
+#define CPM_IDLE_WAIT 0
+#define CPM_IDLE_DOZE 1
+
+struct cpm {
+ dcr_host_t dcr_host;
+ unsigned int dcr_offset[3];
+ unsigned int powersave_off;
+ unsigned int unused;
+ unsigned int idle_doze;
+ unsigned int standby;
+ unsigned int suspend;
+};
+
+static struct cpm cpm;
+
+struct cpm_idle_mode {
+ unsigned int enabled;
+ const char *name;
+};
+
+static struct cpm_idle_mode idle_mode[] = {
+ [CPM_IDLE_WAIT] = { 1, "wait" }, /* default */
+ [CPM_IDLE_DOZE] = { 0, "doze" },
+};
+
+static unsigned int cpm_set(unsigned int cpm_reg, unsigned int mask)
+{
+ unsigned int value;
+
+ /* CPM controller supports 3 different types of sleep interface
+ * known as class 1, 2 and 3. For class 1 units, they are
+ * unconditionally put to sleep when the corresponding CPM bit is
+ * set. For class 2 and 3 units this is not case; if they can be
+ * put to to sleep, they will. Here we do not verify, we just
+ * set them and expect them to eventually go off when they can.
+ */
+ value = dcr_read(cpm.dcr_host, cpm.dcr_offset[cpm_reg]);
+ dcr_write(cpm.dcr_host, cpm.dcr_offset[cpm_reg], value | mask);
+
+ /* return old state, to restore later if needed */
+ return value;
+}
+
+static void cpm_idle_wait(void)
+{
+ unsigned long msr_save;
+
+ /* save off initial state */
+ msr_save = mfmsr();
+ /* sync required when CPM0_ER[CPU] is set */
+ mb();
+ /* set wait state MSR */
+ mtmsr(msr_save|MSR_WE|MSR_EE|MSR_CE|MSR_DE);
+ isync();
+ /* return to initial state */
+ mtmsr(msr_save);
+ isync();
+}
+
+static void cpm_idle_sleep(unsigned int mask)
+{
+ unsigned int er_save;
+
+ /* update CPM_ER state */
+ er_save = cpm_set(CPM_ER, mask);
+
+ /* go to wait state so that CPM0_ER[CPU] can take effect */
+ cpm_idle_wait();
+
+ /* restore CPM_ER state */
+ dcr_write(cpm.dcr_host, cpm.dcr_offset[CPM_ER], er_save);
+}
+
+static void cpm_idle_doze(void)
+{
+ cpm_idle_sleep(cpm.idle_doze);
+}
+
+static void cpm_idle_config(int mode)
+{
+ int i;
+
+ if (idle_mode[mode].enabled)
+ return;
+
+ for (i = 0; i < ARRAY_SIZE(idle_mode); i++)
+ idle_mode[i].enabled = 0;
+
+ idle_mode[mode].enabled = 1;
+}
+
+static ssize_t cpm_idle_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ char *s = buf;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(idle_mode); i++) {
+ if (idle_mode[i].enabled)
+ s += sprintf(s, "[%s] ", idle_mode[i].name);
+ else
+ s += sprintf(s, "%s ", idle_mode[i].name);
+ }
+
+ *(s-1) = '\n'; /* convert the last space to a newline */
+
+ return s - buf;
+}
+
+static ssize_t cpm_idle_store(struct kobject *kobj,
+ struct kobj_attribute *attr,
+ const char *buf, size_t n)
+{
+ int i;
+ char *p;
+ int len;
+
+ p = memchr(buf, '\n', n);
+ len = p ? p - buf : n;
+
+ for (i = 0; i < ARRAY_SIZE(idle_mode); i++) {
+ if (strncmp(buf, idle_mode[i].name, len) == 0) {
+ cpm_idle_config(i);
+ return n;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static struct kobj_attribute cpm_idle_attr =
+ __ATTR(idle, 0644, cpm_idle_show, cpm_idle_store);
+
+static void cpm_idle_config_sysfs(void)
+{
+ struct device *dev;
+ unsigned long ret;
+
+ dev = get_cpu_device(0);
+
+ ret = sysfs_create_file(&dev->kobj,
+ &cpm_idle_attr.attr);
+ if (ret)
+ printk(KERN_WARNING
+ "cpm: failed to create idle sysfs entry\n");
+}
+
+static void cpm_idle(void)
+{
+ if (idle_mode[CPM_IDLE_DOZE].enabled)
+ cpm_idle_doze();
+ else
+ cpm_idle_wait();
+}
+
+static int cpm_suspend_valid(suspend_state_t state)
+{
+ switch (state) {
+ case PM_SUSPEND_STANDBY:
+ return !!cpm.standby;
+ case PM_SUSPEND_MEM:
+ return !!cpm.suspend;
+ default:
+ return 0;
+ }
+}
+
+static void cpm_suspend_standby(unsigned int mask)
+{
+ unsigned long tcr_save;
+
+ /* disable decrement interrupt */
+ tcr_save = mfspr(SPRN_TCR);
+ mtspr(SPRN_TCR, tcr_save & ~TCR_DIE);
+
+ /* go to sleep state */
+ cpm_idle_sleep(mask);
+
+ /* restore decrement interrupt */
+ mtspr(SPRN_TCR, tcr_save);
+}
+
+static int cpm_suspend_enter(suspend_state_t state)
+{
+ switch (state) {
+ case PM_SUSPEND_STANDBY:
+ cpm_suspend_standby(cpm.standby);
+ break;
+ case PM_SUSPEND_MEM:
+ cpm_suspend_standby(cpm.suspend);
+ break;
+ }
+
+ return 0;
+}
+
+static const struct platform_suspend_ops cpm_suspend_ops = {
+ .valid = cpm_suspend_valid,
+ .enter = cpm_suspend_enter,
+};
+
+static int cpm_get_uint_property(struct device_node *np,
+ const char *name)
+{
+ int len;
+ const unsigned int *prop = of_get_property(np, name, &len);
+
+ if (prop == NULL || len < sizeof(u32))
+ return 0;
+
+ return *prop;
+}
+
+static int __init cpm_init(void)
+{
+ struct device_node *np;
+ int dcr_base, dcr_len;
+ int ret = 0;
+
+ if (!cpm.powersave_off) {
+ cpm_idle_config(CPM_IDLE_WAIT);
+ ppc_md.power_save = &cpm_idle;
+ }
+
+ np = of_find_compatible_node(NULL, NULL, "ibm,cpm");
+ if (!np) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ dcr_base = dcr_resource_start(np, 0);
+ dcr_len = dcr_resource_len(np, 0);
+
+ if (dcr_base == 0 || dcr_len == 0) {
+ printk(KERN_ERR "cpm: could not parse dcr property for %pOF\n",
+ np);
+ ret = -EINVAL;
+ goto node_put;
+ }
+
+ cpm.dcr_host = dcr_map(np, dcr_base, dcr_len);
+
+ if (!DCR_MAP_OK(cpm.dcr_host)) {
+ printk(KERN_ERR "cpm: failed to map dcr property for %pOF\n",
+ np);
+ ret = -EINVAL;
+ goto node_put;
+ }
+
+ /* All 4xx SoCs with a CPM controller have one of two
+ * different order for the CPM registers. Some have the
+ * CPM registers in the following order (ER,FR,SR). The
+ * others have them in the following order (SR,ER,FR).
+ */
+
+ if (cpm_get_uint_property(np, "er-offset") == 0) {
+ cpm.dcr_offset[CPM_ER] = 0;
+ cpm.dcr_offset[CPM_FR] = 1;
+ cpm.dcr_offset[CPM_SR] = 2;
+ } else {
+ cpm.dcr_offset[CPM_ER] = 1;
+ cpm.dcr_offset[CPM_FR] = 2;
+ cpm.dcr_offset[CPM_SR] = 0;
+ }
+
+ /* Now let's see what IPs to turn off for the following modes */
+
+ cpm.unused = cpm_get_uint_property(np, "unused-units");
+ cpm.idle_doze = cpm_get_uint_property(np, "idle-doze");
+ cpm.standby = cpm_get_uint_property(np, "standby");
+ cpm.suspend = cpm_get_uint_property(np, "suspend");
+
+ /* If some IPs are unused let's turn them off now */
+
+ if (cpm.unused) {
+ cpm_set(CPM_ER, cpm.unused);
+ cpm_set(CPM_FR, cpm.unused);
+ }
+
+ /* Now let's export interfaces */
+
+ if (!cpm.powersave_off && cpm.idle_doze)
+ cpm_idle_config_sysfs();
+
+ if (cpm.standby || cpm.suspend)
+ suspend_set_ops(&cpm_suspend_ops);
+node_put:
+ of_node_put(np);
+out:
+ return ret;
+}
+
+late_initcall(cpm_init);
+
+static int __init cpm_powersave_off(char *arg)
+{
+ cpm.powersave_off = 1;
+ return 0;
+}
+__setup("powersave=off", cpm_powersave_off);
diff --git a/arch/powerpc/platforms/4xx/gpio.c b/arch/powerpc/platforms/4xx/gpio.c
new file mode 100644
index 000000000000..2238e369cde4
--- /dev/null
+++ b/arch/powerpc/platforms/4xx/gpio.c
@@ -0,0 +1,207 @@
+/*
+ * PPC4xx gpio driver
+ *
+ * Copyright (c) 2008 Harris Corporation
+ * Copyright (c) 2008 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ * Copyright (c) MontaVista Software, Inc. 2008.
+ *
+ * Author: Steve Falco <sfalco@harris.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/gpio/driver.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+
+#define GPIO_MASK(gpio) (0x80000000 >> (gpio))
+#define GPIO_MASK2(gpio) (0xc0000000 >> ((gpio) * 2))
+
+/* Physical GPIO register layout */
+struct ppc4xx_gpio {
+ __be32 or;
+ __be32 tcr;
+ __be32 osrl;
+ __be32 osrh;
+ __be32 tsrl;
+ __be32 tsrh;
+ __be32 odr;
+ __be32 ir;
+ __be32 rr1;
+ __be32 rr2;
+ __be32 rr3;
+ __be32 reserved1;
+ __be32 isr1l;
+ __be32 isr1h;
+ __be32 isr2l;
+ __be32 isr2h;
+ __be32 isr3l;
+ __be32 isr3h;
+};
+
+struct ppc4xx_gpio_chip {
+ struct of_mm_gpio_chip mm_gc;
+ spinlock_t lock;
+};
+
+/*
+ * GPIO LIB API implementation for GPIOs
+ *
+ * There are a maximum of 32 gpios in each gpio controller.
+ */
+
+static int ppc4xx_gpio_get(struct gpio_chip *gc, unsigned int gpio)
+{
+ struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
+ struct ppc4xx_gpio __iomem *regs = mm_gc->regs;
+
+ return !!(in_be32(&regs->ir) & GPIO_MASK(gpio));
+}
+
+static inline void
+__ppc4xx_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
+{
+ struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
+ struct ppc4xx_gpio __iomem *regs = mm_gc->regs;
+
+ if (val)
+ setbits32(&regs->or, GPIO_MASK(gpio));
+ else
+ clrbits32(&regs->or, GPIO_MASK(gpio));
+}
+
+static void
+ppc4xx_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
+{
+ struct ppc4xx_gpio_chip *chip = gpiochip_get_data(gc);
+ unsigned long flags;
+
+ spin_lock_irqsave(&chip->lock, flags);
+
+ __ppc4xx_gpio_set(gc, gpio, val);
+
+ spin_unlock_irqrestore(&chip->lock, flags);
+
+ pr_debug("%s: gpio: %d val: %d\n", __func__, gpio, val);
+}
+
+static int ppc4xx_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
+{
+ struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
+ struct ppc4xx_gpio_chip *chip = gpiochip_get_data(gc);
+ struct ppc4xx_gpio __iomem *regs = mm_gc->regs;
+ unsigned long flags;
+
+ spin_lock_irqsave(&chip->lock, flags);
+
+ /* Disable open-drain function */
+ clrbits32(&regs->odr, GPIO_MASK(gpio));
+
+ /* Float the pin */
+ clrbits32(&regs->tcr, GPIO_MASK(gpio));
+
+ /* Bits 0-15 use TSRL/OSRL, bits 16-31 use TSRH/OSRH */
+ if (gpio < 16) {
+ clrbits32(&regs->osrl, GPIO_MASK2(gpio));
+ clrbits32(&regs->tsrl, GPIO_MASK2(gpio));
+ } else {
+ clrbits32(&regs->osrh, GPIO_MASK2(gpio));
+ clrbits32(&regs->tsrh, GPIO_MASK2(gpio));
+ }
+
+ spin_unlock_irqrestore(&chip->lock, flags);
+
+ return 0;
+}
+
+static int
+ppc4xx_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
+{
+ struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
+ struct ppc4xx_gpio_chip *chip = gpiochip_get_data(gc);
+ struct ppc4xx_gpio __iomem *regs = mm_gc->regs;
+ unsigned long flags;
+
+ spin_lock_irqsave(&chip->lock, flags);
+
+ /* First set initial value */
+ __ppc4xx_gpio_set(gc, gpio, val);
+
+ /* Disable open-drain function */
+ clrbits32(&regs->odr, GPIO_MASK(gpio));
+
+ /* Drive the pin */
+ setbits32(&regs->tcr, GPIO_MASK(gpio));
+
+ /* Bits 0-15 use TSRL, bits 16-31 use TSRH */
+ if (gpio < 16) {
+ clrbits32(&regs->osrl, GPIO_MASK2(gpio));
+ clrbits32(&regs->tsrl, GPIO_MASK2(gpio));
+ } else {
+ clrbits32(&regs->osrh, GPIO_MASK2(gpio));
+ clrbits32(&regs->tsrh, GPIO_MASK2(gpio));
+ }
+
+ spin_unlock_irqrestore(&chip->lock, flags);
+
+ pr_debug("%s: gpio: %d val: %d\n", __func__, gpio, val);
+
+ return 0;
+}
+
+static int __init ppc4xx_add_gpiochips(void)
+{
+ struct device_node *np;
+
+ for_each_compatible_node(np, NULL, "ibm,ppc4xx-gpio") {
+ int ret;
+ struct ppc4xx_gpio_chip *ppc4xx_gc;
+ struct of_mm_gpio_chip *mm_gc;
+ struct gpio_chip *gc;
+
+ ppc4xx_gc = kzalloc(sizeof(*ppc4xx_gc), GFP_KERNEL);
+ if (!ppc4xx_gc) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ spin_lock_init(&ppc4xx_gc->lock);
+
+ mm_gc = &ppc4xx_gc->mm_gc;
+ gc = &mm_gc->gc;
+
+ gc->ngpio = 32;
+ gc->direction_input = ppc4xx_gpio_dir_in;
+ gc->direction_output = ppc4xx_gpio_dir_out;
+ gc->get = ppc4xx_gpio_get;
+ gc->set = ppc4xx_gpio_set;
+
+ ret = of_mm_gpiochip_add_data(np, mm_gc, ppc4xx_gc);
+ if (ret)
+ goto err;
+ continue;
+err:
+ pr_err("%pOF: registration failed with status %d\n", np, ret);
+ kfree(ppc4xx_gc);
+ /* try others anyway */
+ }
+ return 0;
+}
+arch_initcall(ppc4xx_add_gpiochips);
diff --git a/arch/powerpc/sysdev/ppc4xx_hsta_msi.c b/arch/powerpc/platforms/4xx/hsta_msi.c
index 9926ad67af76..9926ad67af76 100644
--- a/arch/powerpc/sysdev/ppc4xx_hsta_msi.c
+++ b/arch/powerpc/platforms/4xx/hsta_msi.c
diff --git a/arch/powerpc/platforms/4xx/machine_check.c b/arch/powerpc/platforms/4xx/machine_check.c
new file mode 100644
index 000000000000..aa039dfaf82f
--- /dev/null
+++ b/arch/powerpc/platforms/4xx/machine_check.c
@@ -0,0 +1,26 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/printk.h>
+#include <linux/ptrace.h>
+
+#include <asm/reg.h>
+
+int machine_check_4xx(struct pt_regs *regs)
+{
+ unsigned long reason = regs->dsisr;
+
+ if (reason & ESR_IMCP) {
+ printk("Instruction");
+ mtspr(SPRN_ESR, reason & ~ESR_IMCP);
+ } else
+ printk("Data");
+ printk(" machine check in kernel mode.\n");
+
+ return 0;
+}
diff --git a/arch/powerpc/platforms/4xx/msi.c b/arch/powerpc/platforms/4xx/msi.c
new file mode 100644
index 000000000000..d50417e23add
--- /dev/null
+++ b/arch/powerpc/platforms/4xx/msi.c
@@ -0,0 +1,285 @@
+/*
+ * Adding PCI-E MSI support for PPC4XX SoCs.
+ *
+ * Copyright (c) 2010, Applied Micro Circuits Corporation
+ * Authors: Tirumala R Marri <tmarri@apm.com>
+ * Feng Kan <fkan@apm.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <linux/irq.h>
+#include <linux/pci.h>
+#include <linux/msi.h>
+#include <linux/of_platform.h>
+#include <linux/interrupt.h>
+#include <linux/export.h>
+#include <linux/kernel.h>
+#include <asm/prom.h>
+#include <asm/hw_irq.h>
+#include <asm/ppc-pci.h>
+#include <asm/dcr.h>
+#include <asm/dcr-regs.h>
+#include <asm/msi_bitmap.h>
+
+#define PEIH_TERMADH 0x00
+#define PEIH_TERMADL 0x08
+#define PEIH_MSIED 0x10
+#define PEIH_MSIMK 0x18
+#define PEIH_MSIASS 0x20
+#define PEIH_FLUSH0 0x30
+#define PEIH_FLUSH1 0x38
+#define PEIH_CNTRST 0x48
+
+static int msi_irqs;
+
+struct ppc4xx_msi {
+ u32 msi_addr_lo;
+ u32 msi_addr_hi;
+ void __iomem *msi_regs;
+ int *msi_virqs;
+ struct msi_bitmap bitmap;
+ struct device_node *msi_dev;
+};
+
+static struct ppc4xx_msi ppc4xx_msi;
+
+static int ppc4xx_msi_init_allocator(struct platform_device *dev,
+ struct ppc4xx_msi *msi_data)
+{
+ int err;
+
+ err = msi_bitmap_alloc(&msi_data->bitmap, msi_irqs,
+ dev->dev.of_node);
+ if (err)
+ return err;
+
+ err = msi_bitmap_reserve_dt_hwirqs(&msi_data->bitmap);
+ if (err < 0) {
+ msi_bitmap_free(&msi_data->bitmap);
+ return err;
+ }
+
+ return 0;
+}
+
+static int ppc4xx_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
+{
+ int int_no = -ENOMEM;
+ unsigned int virq;
+ struct msi_msg msg;
+ struct msi_desc *entry;
+ struct ppc4xx_msi *msi_data = &ppc4xx_msi;
+
+ dev_dbg(&dev->dev, "PCIE-MSI:%s called. vec %x type %d\n",
+ __func__, nvec, type);
+ if (type == PCI_CAP_ID_MSIX)
+ pr_debug("ppc4xx msi: MSI-X untested, trying anyway.\n");
+
+ msi_data->msi_virqs = kmalloc((msi_irqs) * sizeof(int), GFP_KERNEL);
+ if (!msi_data->msi_virqs)
+ return -ENOMEM;
+
+ for_each_pci_msi_entry(entry, dev) {
+ int_no = msi_bitmap_alloc_hwirqs(&msi_data->bitmap, 1);
+ if (int_no >= 0)
+ break;
+ if (int_no < 0) {
+ pr_debug("%s: fail allocating msi interrupt\n",
+ __func__);
+ }
+ virq = irq_of_parse_and_map(msi_data->msi_dev, int_no);
+ if (!virq) {
+ dev_err(&dev->dev, "%s: fail mapping irq\n", __func__);
+ msi_bitmap_free_hwirqs(&msi_data->bitmap, int_no, 1);
+ return -ENOSPC;
+ }
+ dev_dbg(&dev->dev, "%s: virq = %d\n", __func__, virq);
+
+ /* Setup msi address space */
+ msg.address_hi = msi_data->msi_addr_hi;
+ msg.address_lo = msi_data->msi_addr_lo;
+
+ irq_set_msi_desc(virq, entry);
+ msg.data = int_no;
+ pci_write_msi_msg(virq, &msg);
+ }
+ return 0;
+}
+
+void ppc4xx_teardown_msi_irqs(struct pci_dev *dev)
+{
+ struct msi_desc *entry;
+ struct ppc4xx_msi *msi_data = &ppc4xx_msi;
+ irq_hw_number_t hwirq;
+
+ dev_dbg(&dev->dev, "PCIE-MSI: tearing down msi irqs\n");
+
+ for_each_pci_msi_entry(entry, dev) {
+ if (!entry->irq)
+ continue;
+ hwirq = virq_to_hw(entry->irq);
+ irq_set_msi_desc(entry->irq, NULL);
+ irq_dispose_mapping(entry->irq);
+ msi_bitmap_free_hwirqs(&msi_data->bitmap, hwirq, 1);
+ }
+}
+
+static int ppc4xx_setup_pcieh_hw(struct platform_device *dev,
+ struct resource res, struct ppc4xx_msi *msi)
+{
+ const u32 *msi_data;
+ const u32 *msi_mask;
+ const u32 *sdr_addr;
+ dma_addr_t msi_phys;
+ void *msi_virt;
+
+ sdr_addr = of_get_property(dev->dev.of_node, "sdr-base", NULL);
+ if (!sdr_addr)
+ return -1;
+
+ mtdcri(SDR0, *sdr_addr, upper_32_bits(res.start)); /*HIGH addr */
+ mtdcri(SDR0, *sdr_addr + 1, lower_32_bits(res.start)); /* Low addr */
+
+ msi->msi_dev = of_find_node_by_name(NULL, "ppc4xx-msi");
+ if (!msi->msi_dev)
+ return -ENODEV;
+
+ msi->msi_regs = of_iomap(msi->msi_dev, 0);
+ if (!msi->msi_regs) {
+ dev_err(&dev->dev, "of_iomap problem failed\n");
+ return -ENOMEM;
+ }
+ dev_dbg(&dev->dev, "PCIE-MSI: msi register mapped 0x%x 0x%x\n",
+ (u32) (msi->msi_regs + PEIH_TERMADH), (u32) (msi->msi_regs));
+
+ msi_virt = dma_alloc_coherent(&dev->dev, 64, &msi_phys, GFP_KERNEL);
+ if (!msi_virt)
+ return -ENOMEM;
+ msi->msi_addr_hi = upper_32_bits(msi_phys);
+ msi->msi_addr_lo = lower_32_bits(msi_phys & 0xffffffff);
+ dev_dbg(&dev->dev, "PCIE-MSI: msi address high 0x%x, low 0x%x\n",
+ msi->msi_addr_hi, msi->msi_addr_lo);
+
+ /* Progam the Interrupt handler Termination addr registers */
+ out_be32(msi->msi_regs + PEIH_TERMADH, msi->msi_addr_hi);
+ out_be32(msi->msi_regs + PEIH_TERMADL, msi->msi_addr_lo);
+
+ msi_data = of_get_property(dev->dev.of_node, "msi-data", NULL);
+ if (!msi_data)
+ return -1;
+ msi_mask = of_get_property(dev->dev.of_node, "msi-mask", NULL);
+ if (!msi_mask)
+ return -1;
+ /* Program MSI Expected data and Mask bits */
+ out_be32(msi->msi_regs + PEIH_MSIED, *msi_data);
+ out_be32(msi->msi_regs + PEIH_MSIMK, *msi_mask);
+
+ dma_free_coherent(&dev->dev, 64, msi_virt, msi_phys);
+
+ return 0;
+}
+
+static int ppc4xx_of_msi_remove(struct platform_device *dev)
+{
+ struct ppc4xx_msi *msi = dev->dev.platform_data;
+ int i;
+ int virq;
+
+ for (i = 0; i < msi_irqs; i++) {
+ virq = msi->msi_virqs[i];
+ if (virq)
+ irq_dispose_mapping(virq);
+ }
+
+ if (msi->bitmap.bitmap)
+ msi_bitmap_free(&msi->bitmap);
+ iounmap(msi->msi_regs);
+ of_node_put(msi->msi_dev);
+ kfree(msi);
+
+ return 0;
+}
+
+static int ppc4xx_msi_probe(struct platform_device *dev)
+{
+ struct ppc4xx_msi *msi;
+ struct resource res;
+ int err = 0;
+ struct pci_controller *phb;
+
+ dev_dbg(&dev->dev, "PCIE-MSI: Setting up MSI support...\n");
+
+ msi = kzalloc(sizeof(struct ppc4xx_msi), GFP_KERNEL);
+ if (!msi) {
+ dev_err(&dev->dev, "No memory for MSI structure\n");
+ return -ENOMEM;
+ }
+ dev->dev.platform_data = msi;
+
+ /* Get MSI ranges */
+ err = of_address_to_resource(dev->dev.of_node, 0, &res);
+ if (err) {
+ dev_err(&dev->dev, "%pOF resource error!\n", dev->dev.of_node);
+ goto error_out;
+ }
+
+ msi_irqs = of_irq_count(dev->dev.of_node);
+ if (!msi_irqs)
+ return -ENODEV;
+
+ if (ppc4xx_setup_pcieh_hw(dev, res, msi))
+ goto error_out;
+
+ err = ppc4xx_msi_init_allocator(dev, msi);
+ if (err) {
+ dev_err(&dev->dev, "Error allocating MSI bitmap\n");
+ goto error_out;
+ }
+ ppc4xx_msi = *msi;
+
+ list_for_each_entry(phb, &hose_list, list_node) {
+ phb->controller_ops.setup_msi_irqs = ppc4xx_setup_msi_irqs;
+ phb->controller_ops.teardown_msi_irqs = ppc4xx_teardown_msi_irqs;
+ }
+ return err;
+
+error_out:
+ ppc4xx_of_msi_remove(dev);
+ return err;
+}
+static const struct of_device_id ppc4xx_msi_ids[] = {
+ {
+ .compatible = "amcc,ppc4xx-msi",
+ },
+ {}
+};
+static struct platform_driver ppc4xx_msi_driver = {
+ .probe = ppc4xx_msi_probe,
+ .remove = ppc4xx_of_msi_remove,
+ .driver = {
+ .name = "ppc4xx-msi",
+ .of_match_table = ppc4xx_msi_ids,
+ },
+
+};
+
+static __init int ppc4xx_msi_init(void)
+{
+ return platform_driver_register(&ppc4xx_msi_driver);
+}
+
+subsys_initcall(ppc4xx_msi_init);
diff --git a/arch/powerpc/sysdev/ppc4xx_ocm.c b/arch/powerpc/platforms/4xx/ocm.c
index 85d9e37f5ccb..85d9e37f5ccb 100644
--- a/arch/powerpc/sysdev/ppc4xx_ocm.c
+++ b/arch/powerpc/platforms/4xx/ocm.c
diff --git a/arch/powerpc/platforms/4xx/pci.c b/arch/powerpc/platforms/4xx/pci.c
new file mode 100644
index 000000000000..73e6b36bcd51
--- /dev/null
+++ b/arch/powerpc/platforms/4xx/pci.c
@@ -0,0 +1,2190 @@
+/*
+ * PCI / PCI-X / PCI-Express support for 4xx parts
+ *
+ * Copyright 2007 Ben. Herrenschmidt <benh@kernel.crashing.org>, IBM Corp.
+ *
+ * Most PCI Express code is coming from Stefan Roese implementation for
+ * arch/ppc in the Denx tree, slightly reworked by me.
+ *
+ * Copyright 2007 DENX Software Engineering, Stefan Roese <sr@denx.de>
+ *
+ * Some of that comes itself from a previous implementation for 440SPE only
+ * by Roland Dreier:
+ *
+ * Copyright (c) 2005 Cisco Systems. All rights reserved.
+ * Roland Dreier <rolandd@cisco.com>
+ *
+ */
+
+#undef DEBUG
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/of.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+
+#include <asm/io.h>
+#include <asm/pci-bridge.h>
+#include <asm/machdep.h>
+#include <asm/dcr.h>
+#include <asm/dcr-regs.h>
+#include <mm/mmu_decl.h>
+
+#include "pci.h"
+
+static int dma_offset_set;
+
+#define U64_TO_U32_LOW(val) ((u32)((val) & 0x00000000ffffffffULL))
+#define U64_TO_U32_HIGH(val) ((u32)((val) >> 32))
+
+#define RES_TO_U32_LOW(val) \
+ ((sizeof(resource_size_t) > sizeof(u32)) ? U64_TO_U32_LOW(val) : (val))
+#define RES_TO_U32_HIGH(val) \
+ ((sizeof(resource_size_t) > sizeof(u32)) ? U64_TO_U32_HIGH(val) : (0))
+
+static inline int ppc440spe_revA(void)
+{
+ /* Catch both 440SPe variants, with and without RAID6 support */
+ if ((mfspr(SPRN_PVR) & 0xffefffff) == 0x53421890)
+ return 1;
+ else
+ return 0;
+}
+
+static void fixup_ppc4xx_pci_bridge(struct pci_dev *dev)
+{
+ struct pci_controller *hose;
+ int i;
+
+ if (dev->devfn != 0 || dev->bus->self != NULL)
+ return;
+
+ hose = pci_bus_to_host(dev->bus);
+ if (hose == NULL)
+ return;
+
+ if (!of_device_is_compatible(hose->dn, "ibm,plb-pciex") &&
+ !of_device_is_compatible(hose->dn, "ibm,plb-pcix") &&
+ !of_device_is_compatible(hose->dn, "ibm,plb-pci"))
+ return;
+
+ if (of_device_is_compatible(hose->dn, "ibm,plb440epx-pci") ||
+ of_device_is_compatible(hose->dn, "ibm,plb440grx-pci")) {
+ hose->indirect_type |= PPC_INDIRECT_TYPE_BROKEN_MRM;
+ }
+
+ /* Hide the PCI host BARs from the kernel as their content doesn't
+ * fit well in the resource management
+ */
+ for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
+ dev->resource[i].start = dev->resource[i].end = 0;
+ dev->resource[i].flags = 0;
+ }
+
+ printk(KERN_INFO "PCI: Hiding 4xx host bridge resources %s\n",
+ pci_name(dev));
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, fixup_ppc4xx_pci_bridge);
+
+static int __init ppc4xx_parse_dma_ranges(struct pci_controller *hose,
+ void __iomem *reg,
+ struct resource *res)
+{
+ u64 size;
+ const u32 *ranges;
+ int rlen;
+ int pna = of_n_addr_cells(hose->dn);
+ int np = pna + 5;
+
+ /* Default */
+ res->start = 0;
+ size = 0x80000000;
+ res->end = size - 1;
+ res->flags = IORESOURCE_MEM | IORESOURCE_PREFETCH;
+
+ /* Get dma-ranges property */
+ ranges = of_get_property(hose->dn, "dma-ranges", &rlen);
+ if (ranges == NULL)
+ goto out;
+
+ /* Walk it */
+ while ((rlen -= np * 4) >= 0) {
+ u32 pci_space = ranges[0];
+ u64 pci_addr = of_read_number(ranges + 1, 2);
+ u64 cpu_addr = of_translate_dma_address(hose->dn, ranges + 3);
+ size = of_read_number(ranges + pna + 3, 2);
+ ranges += np;
+ if (cpu_addr == OF_BAD_ADDR || size == 0)
+ continue;
+
+ /* We only care about memory */
+ if ((pci_space & 0x03000000) != 0x02000000)
+ continue;
+
+ /* We currently only support memory at 0, and pci_addr
+ * within 32 bits space
+ */
+ if (cpu_addr != 0 || pci_addr > 0xffffffff) {
+ printk(KERN_WARNING "%pOF: Ignored unsupported dma range"
+ " 0x%016llx...0x%016llx -> 0x%016llx\n",
+ hose->dn,
+ pci_addr, pci_addr + size - 1, cpu_addr);
+ continue;
+ }
+
+ /* Check if not prefetchable */
+ if (!(pci_space & 0x40000000))
+ res->flags &= ~IORESOURCE_PREFETCH;
+
+
+ /* Use that */
+ res->start = pci_addr;
+ /* Beware of 32 bits resources */
+ if (sizeof(resource_size_t) == sizeof(u32) &&
+ (pci_addr + size) > 0x100000000ull)
+ res->end = 0xffffffff;
+ else
+ res->end = res->start + size - 1;
+ break;
+ }
+
+ /* We only support one global DMA offset */
+ if (dma_offset_set && pci_dram_offset != res->start) {
+ printk(KERN_ERR "%pOF: dma-ranges(s) mismatch\n", hose->dn);
+ return -ENXIO;
+ }
+
+ /* Check that we can fit all of memory as we don't support
+ * DMA bounce buffers
+ */
+ if (size < total_memory) {
+ printk(KERN_ERR "%pOF: dma-ranges too small "
+ "(size=%llx total_memory=%llx)\n",
+ hose->dn, size, (u64)total_memory);
+ return -ENXIO;
+ }
+
+ /* Check we are a power of 2 size and that base is a multiple of size*/
+ if ((size & (size - 1)) != 0 ||
+ (res->start & (size - 1)) != 0) {
+ printk(KERN_ERR "%pOF: dma-ranges unaligned\n", hose->dn);
+ return -ENXIO;
+ }
+
+ /* Check that we are fully contained within 32 bits space if we are not
+ * running on a 460sx or 476fpe which have 64 bit bus addresses.
+ */
+ if (res->end > 0xffffffff &&
+ !(of_device_is_compatible(hose->dn, "ibm,plb-pciex-460sx")
+ || of_device_is_compatible(hose->dn, "ibm,plb-pciex-476fpe"))) {
+ printk(KERN_ERR "%pOF: dma-ranges outside of 32 bits space\n",
+ hose->dn);
+ return -ENXIO;
+ }
+ out:
+ dma_offset_set = 1;
+ pci_dram_offset = res->start;
+ hose->dma_window_base_cur = res->start;
+ hose->dma_window_size = resource_size(res);
+
+ printk(KERN_INFO "4xx PCI DMA offset set to 0x%08lx\n",
+ pci_dram_offset);
+ printk(KERN_INFO "4xx PCI DMA window base to 0x%016llx\n",
+ (unsigned long long)hose->dma_window_base_cur);
+ printk(KERN_INFO "DMA window size 0x%016llx\n",
+ (unsigned long long)hose->dma_window_size);
+ return 0;
+}
+
+/*
+ * 4xx PCI 2.x part
+ */
+
+static int __init ppc4xx_setup_one_pci_PMM(struct pci_controller *hose,
+ void __iomem *reg,
+ u64 plb_addr,
+ u64 pci_addr,
+ u64 size,
+ unsigned int flags,
+ int index)
+{
+ u32 ma, pcila, pciha;
+
+ /* Hack warning ! The "old" PCI 2.x cell only let us configure the low
+ * 32-bit of incoming PLB addresses. The top 4 bits of the 36-bit
+ * address are actually hard wired to a value that appears to depend
+ * on the specific SoC. For example, it's 0 on 440EP and 1 on 440EPx.
+ *
+ * The trick here is we just crop those top bits and ignore them when
+ * programming the chip. That means the device-tree has to be right
+ * for the specific part used (we don't print a warning if it's wrong
+ * but on the other hand, you'll crash quickly enough), but at least
+ * this code should work whatever the hard coded value is
+ */
+ plb_addr &= 0xffffffffull;
+
+ /* Note: Due to the above hack, the test below doesn't actually test
+ * if you address is above 4G, but it tests that address and
+ * (address + size) are both contained in the same 4G
+ */
+ if ((plb_addr + size) > 0xffffffffull || !is_power_of_2(size) ||
+ size < 0x1000 || (plb_addr & (size - 1)) != 0) {
+ printk(KERN_WARNING "%pOF: Resource out of range\n", hose->dn);
+ return -1;
+ }
+ ma = (0xffffffffu << ilog2(size)) | 1;
+ if (flags & IORESOURCE_PREFETCH)
+ ma |= 2;
+
+ pciha = RES_TO_U32_HIGH(pci_addr);
+ pcila = RES_TO_U32_LOW(pci_addr);
+
+ writel(plb_addr, reg + PCIL0_PMM0LA + (0x10 * index));
+ writel(pcila, reg + PCIL0_PMM0PCILA + (0x10 * index));
+ writel(pciha, reg + PCIL0_PMM0PCIHA + (0x10 * index));
+ writel(ma, reg + PCIL0_PMM0MA + (0x10 * index));
+
+ return 0;
+}
+
+static void __init ppc4xx_configure_pci_PMMs(struct pci_controller *hose,
+ void __iomem *reg)
+{
+ int i, j, found_isa_hole = 0;
+
+ /* Setup outbound memory windows */
+ for (i = j = 0; i < 3; i++) {
+ struct resource *res = &hose->mem_resources[i];
+ resource_size_t offset = hose->mem_offset[i];
+
+ /* we only care about memory windows */
+ if (!(res->flags & IORESOURCE_MEM))
+ continue;
+ if (j > 2) {
+ printk(KERN_WARNING "%pOF: Too many ranges\n", hose->dn);
+ break;
+ }
+
+ /* Configure the resource */
+ if (ppc4xx_setup_one_pci_PMM(hose, reg,
+ res->start,
+ res->start - offset,
+ resource_size(res),
+ res->flags,
+ j) == 0) {
+ j++;
+
+ /* If the resource PCI address is 0 then we have our
+ * ISA memory hole
+ */
+ if (res->start == offset)
+ found_isa_hole = 1;
+ }
+ }
+
+ /* Handle ISA memory hole if not already covered */
+ if (j <= 2 && !found_isa_hole && hose->isa_mem_size)
+ if (ppc4xx_setup_one_pci_PMM(hose, reg, hose->isa_mem_phys, 0,
+ hose->isa_mem_size, 0, j) == 0)
+ printk(KERN_INFO "%pOF: Legacy ISA memory support enabled\n",
+ hose->dn);
+}
+
+static void __init ppc4xx_configure_pci_PTMs(struct pci_controller *hose,
+ void __iomem *reg,
+ const struct resource *res)
+{
+ resource_size_t size = resource_size(res);
+ u32 sa;
+
+ /* Calculate window size */
+ sa = (0xffffffffu << ilog2(size)) | 1;
+ sa |= 0x1;
+
+ /* RAM is always at 0 local for now */
+ writel(0, reg + PCIL0_PTM1LA);
+ writel(sa, reg + PCIL0_PTM1MS);
+
+ /* Map on PCI side */
+ early_write_config_dword(hose, hose->first_busno, 0,
+ PCI_BASE_ADDRESS_1, res->start);
+ early_write_config_dword(hose, hose->first_busno, 0,
+ PCI_BASE_ADDRESS_2, 0x00000000);
+ early_write_config_word(hose, hose->first_busno, 0,
+ PCI_COMMAND, 0x0006);
+}
+
+static void __init ppc4xx_probe_pci_bridge(struct device_node *np)
+{
+ /* NYI */
+ struct resource rsrc_cfg;
+ struct resource rsrc_reg;
+ struct resource dma_window;
+ struct pci_controller *hose = NULL;
+ void __iomem *reg = NULL;
+ const int *bus_range;
+ int primary = 0;
+
+ /* Check if device is enabled */
+ if (!of_device_is_available(np)) {
+ printk(KERN_INFO "%pOF: Port disabled via device-tree\n", np);
+ return;
+ }
+
+ /* Fetch config space registers address */
+ if (of_address_to_resource(np, 0, &rsrc_cfg)) {
+ printk(KERN_ERR "%pOF: Can't get PCI config register base !",
+ np);
+ return;
+ }
+ /* Fetch host bridge internal registers address */
+ if (of_address_to_resource(np, 3, &rsrc_reg)) {
+ printk(KERN_ERR "%pOF: Can't get PCI internal register base !",
+ np);
+ return;
+ }
+
+ /* Check if primary bridge */
+ if (of_get_property(np, "primary", NULL))
+ primary = 1;
+
+ /* Get bus range if any */
+ bus_range = of_get_property(np, "bus-range", NULL);
+
+ /* Map registers */
+ reg = ioremap(rsrc_reg.start, resource_size(&rsrc_reg));
+ if (reg == NULL) {
+ printk(KERN_ERR "%pOF: Can't map registers !", np);
+ goto fail;
+ }
+
+ /* Allocate the host controller data structure */
+ hose = pcibios_alloc_controller(np);
+ if (!hose)
+ goto fail;
+
+ hose->first_busno = bus_range ? bus_range[0] : 0x0;
+ hose->last_busno = bus_range ? bus_range[1] : 0xff;
+
+ /* Setup config space */
+ setup_indirect_pci(hose, rsrc_cfg.start, rsrc_cfg.start + 0x4, 0);
+
+ /* Disable all windows */
+ writel(0, reg + PCIL0_PMM0MA);
+ writel(0, reg + PCIL0_PMM1MA);
+ writel(0, reg + PCIL0_PMM2MA);
+ writel(0, reg + PCIL0_PTM1MS);
+ writel(0, reg + PCIL0_PTM2MS);
+
+ /* Parse outbound mapping resources */
+ pci_process_bridge_OF_ranges(hose, np, primary);
+
+ /* Parse inbound mapping resources */
+ if (ppc4xx_parse_dma_ranges(hose, reg, &dma_window) != 0)
+ goto fail;
+
+ /* Configure outbound ranges POMs */
+ ppc4xx_configure_pci_PMMs(hose, reg);
+
+ /* Configure inbound ranges PIMs */
+ ppc4xx_configure_pci_PTMs(hose, reg, &dma_window);
+
+ /* We don't need the registers anymore */
+ iounmap(reg);
+ return;
+
+ fail:
+ if (hose)
+ pcibios_free_controller(hose);
+ if (reg)
+ iounmap(reg);
+}
+
+/*
+ * 4xx PCI-X part
+ */
+
+static int __init ppc4xx_setup_one_pcix_POM(struct pci_controller *hose,
+ void __iomem *reg,
+ u64 plb_addr,
+ u64 pci_addr,
+ u64 size,
+ unsigned int flags,
+ int index)
+{
+ u32 lah, lal, pciah, pcial, sa;
+
+ if (!is_power_of_2(size) || size < 0x1000 ||
+ (plb_addr & (size - 1)) != 0) {
+ printk(KERN_WARNING "%pOF: Resource out of range\n",
+ hose->dn);
+ return -1;
+ }
+
+ /* Calculate register values */
+ lah = RES_TO_U32_HIGH(plb_addr);
+ lal = RES_TO_U32_LOW(plb_addr);
+ pciah = RES_TO_U32_HIGH(pci_addr);
+ pcial = RES_TO_U32_LOW(pci_addr);
+ sa = (0xffffffffu << ilog2(size)) | 0x1;
+
+ /* Program register values */
+ if (index == 0) {
+ writel(lah, reg + PCIX0_POM0LAH);
+ writel(lal, reg + PCIX0_POM0LAL);
+ writel(pciah, reg + PCIX0_POM0PCIAH);
+ writel(pcial, reg + PCIX0_POM0PCIAL);
+ writel(sa, reg + PCIX0_POM0SA);
+ } else {
+ writel(lah, reg + PCIX0_POM1LAH);
+ writel(lal, reg + PCIX0_POM1LAL);
+ writel(pciah, reg + PCIX0_POM1PCIAH);
+ writel(pcial, reg + PCIX0_POM1PCIAL);
+ writel(sa, reg + PCIX0_POM1SA);
+ }
+
+ return 0;
+}
+
+static void __init ppc4xx_configure_pcix_POMs(struct pci_controller *hose,
+ void __iomem *reg)
+{
+ int i, j, found_isa_hole = 0;
+
+ /* Setup outbound memory windows */
+ for (i = j = 0; i < 3; i++) {
+ struct resource *res = &hose->mem_resources[i];
+ resource_size_t offset = hose->mem_offset[i];
+
+ /* we only care about memory windows */
+ if (!(res->flags & IORESOURCE_MEM))
+ continue;
+ if (j > 1) {
+ printk(KERN_WARNING "%pOF: Too many ranges\n", hose->dn);
+ break;
+ }
+
+ /* Configure the resource */
+ if (ppc4xx_setup_one_pcix_POM(hose, reg,
+ res->start,
+ res->start - offset,
+ resource_size(res),
+ res->flags,
+ j) == 0) {
+ j++;
+
+ /* If the resource PCI address is 0 then we have our
+ * ISA memory hole
+ */
+ if (res->start == offset)
+ found_isa_hole = 1;
+ }
+ }
+
+ /* Handle ISA memory hole if not already covered */
+ if (j <= 1 && !found_isa_hole && hose->isa_mem_size)
+ if (ppc4xx_setup_one_pcix_POM(hose, reg, hose->isa_mem_phys, 0,
+ hose->isa_mem_size, 0, j) == 0)
+ printk(KERN_INFO "%pOF: Legacy ISA memory support enabled\n",
+ hose->dn);
+}
+
+static void __init ppc4xx_configure_pcix_PIMs(struct pci_controller *hose,
+ void __iomem *reg,
+ const struct resource *res,
+ int big_pim,
+ int enable_msi_hole)
+{
+ resource_size_t size = resource_size(res);
+ u32 sa;
+
+ /* RAM is always at 0 */
+ writel(0x00000000, reg + PCIX0_PIM0LAH);
+ writel(0x00000000, reg + PCIX0_PIM0LAL);
+
+ /* Calculate window size */
+ sa = (0xffffffffu << ilog2(size)) | 1;
+ sa |= 0x1;
+ if (res->flags & IORESOURCE_PREFETCH)
+ sa |= 0x2;
+ if (enable_msi_hole)
+ sa |= 0x4;
+ writel(sa, reg + PCIX0_PIM0SA);
+ if (big_pim)
+ writel(0xffffffff, reg + PCIX0_PIM0SAH);
+
+ /* Map on PCI side */
+ writel(0x00000000, reg + PCIX0_BAR0H);
+ writel(res->start, reg + PCIX0_BAR0L);
+ writew(0x0006, reg + PCIX0_COMMAND);
+}
+
+static void __init ppc4xx_probe_pcix_bridge(struct device_node *np)
+{
+ struct resource rsrc_cfg;
+ struct resource rsrc_reg;
+ struct resource dma_window;
+ struct pci_controller *hose = NULL;
+ void __iomem *reg = NULL;
+ const int *bus_range;
+ int big_pim = 0, msi = 0, primary = 0;
+
+ /* Fetch config space registers address */
+ if (of_address_to_resource(np, 0, &rsrc_cfg)) {
+ printk(KERN_ERR "%pOF: Can't get PCI-X config register base !",
+ np);
+ return;
+ }
+ /* Fetch host bridge internal registers address */
+ if (of_address_to_resource(np, 3, &rsrc_reg)) {
+ printk(KERN_ERR "%pOF: Can't get PCI-X internal register base !",
+ np);
+ return;
+ }
+
+ /* Check if it supports large PIMs (440GX) */
+ if (of_get_property(np, "large-inbound-windows", NULL))
+ big_pim = 1;
+
+ /* Check if we should enable MSIs inbound hole */
+ if (of_get_property(np, "enable-msi-hole", NULL))
+ msi = 1;
+
+ /* Check if primary bridge */
+ if (of_get_property(np, "primary", NULL))
+ primary = 1;
+
+ /* Get bus range if any */
+ bus_range = of_get_property(np, "bus-range", NULL);
+
+ /* Map registers */
+ reg = ioremap(rsrc_reg.start, resource_size(&rsrc_reg));
+ if (reg == NULL) {
+ printk(KERN_ERR "%pOF: Can't map registers !", np);
+ goto fail;
+ }
+
+ /* Allocate the host controller data structure */
+ hose = pcibios_alloc_controller(np);
+ if (!hose)
+ goto fail;
+
+ hose->first_busno = bus_range ? bus_range[0] : 0x0;
+ hose->last_busno = bus_range ? bus_range[1] : 0xff;
+
+ /* Setup config space */
+ setup_indirect_pci(hose, rsrc_cfg.start, rsrc_cfg.start + 0x4,
+ PPC_INDIRECT_TYPE_SET_CFG_TYPE);
+
+ /* Disable all windows */
+ writel(0, reg + PCIX0_POM0SA);
+ writel(0, reg + PCIX0_POM1SA);
+ writel(0, reg + PCIX0_POM2SA);
+ writel(0, reg + PCIX0_PIM0SA);
+ writel(0, reg + PCIX0_PIM1SA);
+ writel(0, reg + PCIX0_PIM2SA);
+ if (big_pim) {
+ writel(0, reg + PCIX0_PIM0SAH);
+ writel(0, reg + PCIX0_PIM2SAH);
+ }
+
+ /* Parse outbound mapping resources */
+ pci_process_bridge_OF_ranges(hose, np, primary);
+
+ /* Parse inbound mapping resources */
+ if (ppc4xx_parse_dma_ranges(hose, reg, &dma_window) != 0)
+ goto fail;
+
+ /* Configure outbound ranges POMs */
+ ppc4xx_configure_pcix_POMs(hose, reg);
+
+ /* Configure inbound ranges PIMs */
+ ppc4xx_configure_pcix_PIMs(hose, reg, &dma_window, big_pim, msi);
+
+ /* We don't need the registers anymore */
+ iounmap(reg);
+ return;
+
+ fail:
+ if (hose)
+ pcibios_free_controller(hose);
+ if (reg)
+ iounmap(reg);
+}
+
+#ifdef CONFIG_PPC4xx_PCI_EXPRESS
+
+/*
+ * 4xx PCI-Express part
+ *
+ * We support 3 parts currently based on the compatible property:
+ *
+ * ibm,plb-pciex-440spe
+ * ibm,plb-pciex-405ex
+ * ibm,plb-pciex-460ex
+ *
+ * Anything else will be rejected for now as they are all subtly
+ * different unfortunately.
+ *
+ */
+
+#define MAX_PCIE_BUS_MAPPED 0x40
+
+struct ppc4xx_pciex_port
+{
+ struct pci_controller *hose;
+ struct device_node *node;
+ unsigned int index;
+ int endpoint;
+ int link;
+ int has_ibpre;
+ unsigned int sdr_base;
+ dcr_host_t dcrs;
+ struct resource cfg_space;
+ struct resource utl_regs;
+ void __iomem *utl_base;
+};
+
+static struct ppc4xx_pciex_port *ppc4xx_pciex_ports;
+static unsigned int ppc4xx_pciex_port_count;
+
+struct ppc4xx_pciex_hwops
+{
+ bool want_sdr;
+ int (*core_init)(struct device_node *np);
+ int (*port_init_hw)(struct ppc4xx_pciex_port *port);
+ int (*setup_utl)(struct ppc4xx_pciex_port *port);
+ void (*check_link)(struct ppc4xx_pciex_port *port);
+};
+
+static struct ppc4xx_pciex_hwops *ppc4xx_pciex_hwops;
+
+static int __init ppc4xx_pciex_wait_on_sdr(struct ppc4xx_pciex_port *port,
+ unsigned int sdr_offset,
+ unsigned int mask,
+ unsigned int value,
+ int timeout_ms)
+{
+ u32 val;
+
+ while(timeout_ms--) {
+ val = mfdcri(SDR0, port->sdr_base + sdr_offset);
+ if ((val & mask) == value) {
+ pr_debug("PCIE%d: Wait on SDR %x success with tm %d (%08x)\n",
+ port->index, sdr_offset, timeout_ms, val);
+ return 0;
+ }
+ msleep(1);
+ }
+ return -1;
+}
+
+static int __init ppc4xx_pciex_port_reset_sdr(struct ppc4xx_pciex_port *port)
+{
+ /* Wait for reset to complete */
+ if (ppc4xx_pciex_wait_on_sdr(port, PESDRn_RCSSTS, 1 << 20, 0, 10)) {
+ printk(KERN_WARNING "PCIE%d: PGRST failed\n",
+ port->index);
+ return -1;
+ }
+ return 0;
+}
+
+
+static void __init ppc4xx_pciex_check_link_sdr(struct ppc4xx_pciex_port *port)
+{
+ printk(KERN_INFO "PCIE%d: Checking link...\n", port->index);
+
+ /* Check for card presence detect if supported, if not, just wait for
+ * link unconditionally.
+ *
+ * note that we don't fail if there is no link, we just filter out
+ * config space accesses. That way, it will be easier to implement
+ * hotplug later on.
+ */
+ if (!port->has_ibpre ||
+ !ppc4xx_pciex_wait_on_sdr(port, PESDRn_LOOP,
+ 1 << 28, 1 << 28, 100)) {
+ printk(KERN_INFO
+ "PCIE%d: Device detected, waiting for link...\n",
+ port->index);
+ if (ppc4xx_pciex_wait_on_sdr(port, PESDRn_LOOP,
+ 0x1000, 0x1000, 2000))
+ printk(KERN_WARNING
+ "PCIE%d: Link up failed\n", port->index);
+ else {
+ printk(KERN_INFO
+ "PCIE%d: link is up !\n", port->index);
+ port->link = 1;
+ }
+ } else
+ printk(KERN_INFO "PCIE%d: No device detected.\n", port->index);
+}
+
+#ifdef CONFIG_44x
+
+/* Check various reset bits of the 440SPe PCIe core */
+static int __init ppc440spe_pciex_check_reset(struct device_node *np)
+{
+ u32 valPE0, valPE1, valPE2;
+ int err = 0;
+
+ /* SDR0_PEGPLLLCT1 reset */
+ if (!(mfdcri(SDR0, PESDR0_PLLLCT1) & 0x01000000)) {
+ /*
+ * the PCIe core was probably already initialised
+ * by firmware - let's re-reset RCSSET regs
+ *
+ * -- Shouldn't we also re-reset the whole thing ? -- BenH
+ */
+ pr_debug("PCIE: SDR0_PLLLCT1 already reset.\n");
+ mtdcri(SDR0, PESDR0_440SPE_RCSSET, 0x01010000);
+ mtdcri(SDR0, PESDR1_440SPE_RCSSET, 0x01010000);
+ mtdcri(SDR0, PESDR2_440SPE_RCSSET, 0x01010000);
+ }
+
+ valPE0 = mfdcri(SDR0, PESDR0_440SPE_RCSSET);
+ valPE1 = mfdcri(SDR0, PESDR1_440SPE_RCSSET);
+ valPE2 = mfdcri(SDR0, PESDR2_440SPE_RCSSET);
+
+ /* SDR0_PExRCSSET rstgu */
+ if (!(valPE0 & 0x01000000) ||
+ !(valPE1 & 0x01000000) ||
+ !(valPE2 & 0x01000000)) {
+ printk(KERN_INFO "PCIE: SDR0_PExRCSSET rstgu error\n");
+ err = -1;
+ }
+
+ /* SDR0_PExRCSSET rstdl */
+ if (!(valPE0 & 0x00010000) ||
+ !(valPE1 & 0x00010000) ||
+ !(valPE2 & 0x00010000)) {
+ printk(KERN_INFO "PCIE: SDR0_PExRCSSET rstdl error\n");
+ err = -1;
+ }
+
+ /* SDR0_PExRCSSET rstpyn */
+ if ((valPE0 & 0x00001000) ||
+ (valPE1 & 0x00001000) ||
+ (valPE2 & 0x00001000)) {
+ printk(KERN_INFO "PCIE: SDR0_PExRCSSET rstpyn error\n");
+ err = -1;
+ }
+
+ /* SDR0_PExRCSSET hldplb */
+ if ((valPE0 & 0x10000000) ||
+ (valPE1 & 0x10000000) ||
+ (valPE2 & 0x10000000)) {
+ printk(KERN_INFO "PCIE: SDR0_PExRCSSET hldplb error\n");
+ err = -1;
+ }
+
+ /* SDR0_PExRCSSET rdy */
+ if ((valPE0 & 0x00100000) ||
+ (valPE1 & 0x00100000) ||
+ (valPE2 & 0x00100000)) {
+ printk(KERN_INFO "PCIE: SDR0_PExRCSSET rdy error\n");
+ err = -1;
+ }
+
+ /* SDR0_PExRCSSET shutdown */
+ if ((valPE0 & 0x00000100) ||
+ (valPE1 & 0x00000100) ||
+ (valPE2 & 0x00000100)) {
+ printk(KERN_INFO "PCIE: SDR0_PExRCSSET shutdown error\n");
+ err = -1;
+ }
+
+ return err;
+}
+
+/* Global PCIe core initializations for 440SPe core */
+static int __init ppc440spe_pciex_core_init(struct device_node *np)
+{
+ int time_out = 20;
+
+ /* Set PLL clock receiver to LVPECL */
+ dcri_clrset(SDR0, PESDR0_PLLLCT1, 0, 1 << 28);
+
+ /* Shouldn't we do all the calibration stuff etc... here ? */
+ if (ppc440spe_pciex_check_reset(np))
+ return -ENXIO;
+
+ if (!(mfdcri(SDR0, PESDR0_PLLLCT2) & 0x10000)) {
+ printk(KERN_INFO "PCIE: PESDR_PLLCT2 resistance calibration "
+ "failed (0x%08x)\n",
+ mfdcri(SDR0, PESDR0_PLLLCT2));
+ return -1;
+ }
+
+ /* De-assert reset of PCIe PLL, wait for lock */
+ dcri_clrset(SDR0, PESDR0_PLLLCT1, 1 << 24, 0);
+ udelay(3);
+
+ while (time_out) {
+ if (!(mfdcri(SDR0, PESDR0_PLLLCT3) & 0x10000000)) {
+ time_out--;
+ udelay(1);
+ } else
+ break;
+ }
+ if (!time_out) {
+ printk(KERN_INFO "PCIE: VCO output not locked\n");
+ return -1;
+ }
+
+ pr_debug("PCIE initialization OK\n");
+
+ return 3;
+}
+
+static int __init ppc440spe_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
+{
+ u32 val = 1 << 24;
+
+ if (port->endpoint)
+ val = PTYPE_LEGACY_ENDPOINT << 20;
+ else
+ val = PTYPE_ROOT_PORT << 20;
+
+ if (port->index == 0)
+ val |= LNKW_X8 << 12;
+ else
+ val |= LNKW_X4 << 12;
+
+ mtdcri(SDR0, port->sdr_base + PESDRn_DLPSET, val);
+ mtdcri(SDR0, port->sdr_base + PESDRn_UTLSET1, 0x20222222);
+ if (ppc440spe_revA())
+ mtdcri(SDR0, port->sdr_base + PESDRn_UTLSET2, 0x11000000);
+ mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL0SET1, 0x35000000);
+ mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL1SET1, 0x35000000);
+ mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL2SET1, 0x35000000);
+ mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL3SET1, 0x35000000);
+ if (port->index == 0) {
+ mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL4SET1,
+ 0x35000000);
+ mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL5SET1,
+ 0x35000000);
+ mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL6SET1,
+ 0x35000000);
+ mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL7SET1,
+ 0x35000000);
+ }
+ dcri_clrset(SDR0, port->sdr_base + PESDRn_RCSSET,
+ (1 << 24) | (1 << 16), 1 << 12);
+
+ return ppc4xx_pciex_port_reset_sdr(port);
+}
+
+static int __init ppc440speA_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
+{
+ return ppc440spe_pciex_init_port_hw(port);
+}
+
+static int __init ppc440speB_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
+{
+ int rc = ppc440spe_pciex_init_port_hw(port);
+
+ port->has_ibpre = 1;
+
+ return rc;
+}
+
+static int ppc440speA_pciex_init_utl(struct ppc4xx_pciex_port *port)
+{
+ /* XXX Check what that value means... I hate magic */
+ dcr_write(port->dcrs, DCRO_PEGPL_SPECIAL, 0x68782800);
+
+ /*
+ * Set buffer allocations and then assert VRB and TXE.
+ */
+ out_be32(port->utl_base + PEUTL_OUTTR, 0x08000000);
+ out_be32(port->utl_base + PEUTL_INTR, 0x02000000);
+ out_be32(port->utl_base + PEUTL_OPDBSZ, 0x10000000);
+ out_be32(port->utl_base + PEUTL_PBBSZ, 0x53000000);
+ out_be32(port->utl_base + PEUTL_IPHBSZ, 0x08000000);
+ out_be32(port->utl_base + PEUTL_IPDBSZ, 0x10000000);
+ out_be32(port->utl_base + PEUTL_RCIRQEN, 0x00f00000);
+ out_be32(port->utl_base + PEUTL_PCTL, 0x80800066);
+
+ return 0;
+}
+
+static int ppc440speB_pciex_init_utl(struct ppc4xx_pciex_port *port)
+{
+ /* Report CRS to the operating system */
+ out_be32(port->utl_base + PEUTL_PBCTL, 0x08000000);
+
+ return 0;
+}
+
+static struct ppc4xx_pciex_hwops ppc440speA_pcie_hwops __initdata =
+{
+ .want_sdr = true,
+ .core_init = ppc440spe_pciex_core_init,
+ .port_init_hw = ppc440speA_pciex_init_port_hw,
+ .setup_utl = ppc440speA_pciex_init_utl,
+ .check_link = ppc4xx_pciex_check_link_sdr,
+};
+
+static struct ppc4xx_pciex_hwops ppc440speB_pcie_hwops __initdata =
+{
+ .want_sdr = true,
+ .core_init = ppc440spe_pciex_core_init,
+ .port_init_hw = ppc440speB_pciex_init_port_hw,
+ .setup_utl = ppc440speB_pciex_init_utl,
+ .check_link = ppc4xx_pciex_check_link_sdr,
+};
+
+static int __init ppc460ex_pciex_core_init(struct device_node *np)
+{
+ /* Nothing to do, return 2 ports */
+ return 2;
+}
+
+static int __init ppc460ex_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
+{
+ u32 val;
+ u32 utlset1;
+
+ if (port->endpoint)
+ val = PTYPE_LEGACY_ENDPOINT << 20;
+ else
+ val = PTYPE_ROOT_PORT << 20;
+
+ if (port->index == 0) {
+ val |= LNKW_X1 << 12;
+ utlset1 = 0x20000000;
+ } else {
+ val |= LNKW_X4 << 12;
+ utlset1 = 0x20101101;
+ }
+
+ mtdcri(SDR0, port->sdr_base + PESDRn_DLPSET, val);
+ mtdcri(SDR0, port->sdr_base + PESDRn_UTLSET1, utlset1);
+ mtdcri(SDR0, port->sdr_base + PESDRn_UTLSET2, 0x01210000);
+
+ switch (port->index) {
+ case 0:
+ mtdcri(SDR0, PESDR0_460EX_L0CDRCTL, 0x00003230);
+ mtdcri(SDR0, PESDR0_460EX_L0DRV, 0x00000130);
+ mtdcri(SDR0, PESDR0_460EX_L0CLK, 0x00000006);
+
+ mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST,0x10000000);
+ break;
+
+ case 1:
+ mtdcri(SDR0, PESDR1_460EX_L0CDRCTL, 0x00003230);
+ mtdcri(SDR0, PESDR1_460EX_L1CDRCTL, 0x00003230);
+ mtdcri(SDR0, PESDR1_460EX_L2CDRCTL, 0x00003230);
+ mtdcri(SDR0, PESDR1_460EX_L3CDRCTL, 0x00003230);
+ mtdcri(SDR0, PESDR1_460EX_L0DRV, 0x00000130);
+ mtdcri(SDR0, PESDR1_460EX_L1DRV, 0x00000130);
+ mtdcri(SDR0, PESDR1_460EX_L2DRV, 0x00000130);
+ mtdcri(SDR0, PESDR1_460EX_L3DRV, 0x00000130);
+ mtdcri(SDR0, PESDR1_460EX_L0CLK, 0x00000006);
+ mtdcri(SDR0, PESDR1_460EX_L1CLK, 0x00000006);
+ mtdcri(SDR0, PESDR1_460EX_L2CLK, 0x00000006);
+ mtdcri(SDR0, PESDR1_460EX_L3CLK, 0x00000006);
+
+ mtdcri(SDR0, PESDR1_460EX_PHY_CTL_RST,0x10000000);
+ break;
+ }
+
+ mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET,
+ mfdcri(SDR0, port->sdr_base + PESDRn_RCSSET) |
+ (PESDRx_RCSSET_RSTGU | PESDRx_RCSSET_RSTPYN));
+
+ /* Poll for PHY reset */
+ /* XXX FIXME add timeout */
+ switch (port->index) {
+ case 0:
+ while (!(mfdcri(SDR0, PESDR0_460EX_RSTSTA) & 0x1))
+ udelay(10);
+ break;
+ case 1:
+ while (!(mfdcri(SDR0, PESDR1_460EX_RSTSTA) & 0x1))
+ udelay(10);
+ break;
+ }
+
+ mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET,
+ (mfdcri(SDR0, port->sdr_base + PESDRn_RCSSET) &
+ ~(PESDRx_RCSSET_RSTGU | PESDRx_RCSSET_RSTDL)) |
+ PESDRx_RCSSET_RSTPYN);
+
+ port->has_ibpre = 1;
+
+ return ppc4xx_pciex_port_reset_sdr(port);
+}
+
+static int ppc460ex_pciex_init_utl(struct ppc4xx_pciex_port *port)
+{
+ dcr_write(port->dcrs, DCRO_PEGPL_SPECIAL, 0x0);
+
+ /*
+ * Set buffer allocations and then assert VRB and TXE.
+ */
+ out_be32(port->utl_base + PEUTL_PBCTL, 0x0800000c);
+ out_be32(port->utl_base + PEUTL_OUTTR, 0x08000000);
+ out_be32(port->utl_base + PEUTL_INTR, 0x02000000);
+ out_be32(port->utl_base + PEUTL_OPDBSZ, 0x04000000);
+ out_be32(port->utl_base + PEUTL_PBBSZ, 0x00000000);
+ out_be32(port->utl_base + PEUTL_IPHBSZ, 0x02000000);
+ out_be32(port->utl_base + PEUTL_IPDBSZ, 0x04000000);
+ out_be32(port->utl_base + PEUTL_RCIRQEN,0x00f00000);
+ out_be32(port->utl_base + PEUTL_PCTL, 0x80800066);
+
+ return 0;
+}
+
+static struct ppc4xx_pciex_hwops ppc460ex_pcie_hwops __initdata =
+{
+ .want_sdr = true,
+ .core_init = ppc460ex_pciex_core_init,
+ .port_init_hw = ppc460ex_pciex_init_port_hw,
+ .setup_utl = ppc460ex_pciex_init_utl,
+ .check_link = ppc4xx_pciex_check_link_sdr,
+};
+
+static int __init apm821xx_pciex_core_init(struct device_node *np)
+{
+ /* Return the number of pcie port */
+ return 1;
+}
+
+static int __init apm821xx_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
+{
+ u32 val;
+
+ /*
+ * Do a software reset on PCIe ports.
+ * This code is to fix the issue that pci drivers doesn't re-assign
+ * bus number for PCIE devices after Uboot
+ * scanned and configured all the buses (eg. PCIE NIC IntelPro/1000
+ * PT quad port, SAS LSI 1064E)
+ */
+
+ mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x0);
+ mdelay(10);
+
+ if (port->endpoint)
+ val = PTYPE_LEGACY_ENDPOINT << 20;
+ else
+ val = PTYPE_ROOT_PORT << 20;
+
+ val |= LNKW_X1 << 12;
+
+ mtdcri(SDR0, port->sdr_base + PESDRn_DLPSET, val);
+ mtdcri(SDR0, port->sdr_base + PESDRn_UTLSET1, 0x00000000);
+ mtdcri(SDR0, port->sdr_base + PESDRn_UTLSET2, 0x01010000);
+
+ mtdcri(SDR0, PESDR0_460EX_L0CDRCTL, 0x00003230);
+ mtdcri(SDR0, PESDR0_460EX_L0DRV, 0x00000130);
+ mtdcri(SDR0, PESDR0_460EX_L0CLK, 0x00000006);
+
+ mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x10000000);
+ mdelay(50);
+ mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x30000000);
+
+ mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET,
+ mfdcri(SDR0, port->sdr_base + PESDRn_RCSSET) |
+ (PESDRx_RCSSET_RSTGU | PESDRx_RCSSET_RSTPYN));
+
+ /* Poll for PHY reset */
+ val = PESDR0_460EX_RSTSTA - port->sdr_base;
+ if (ppc4xx_pciex_wait_on_sdr(port, val, 0x1, 1, 100)) {
+ printk(KERN_WARNING "%s: PCIE: Can't reset PHY\n", __func__);
+ return -EBUSY;
+ } else {
+ mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET,
+ (mfdcri(SDR0, port->sdr_base + PESDRn_RCSSET) &
+ ~(PESDRx_RCSSET_RSTGU | PESDRx_RCSSET_RSTDL)) |
+ PESDRx_RCSSET_RSTPYN);
+
+ port->has_ibpre = 1;
+ return 0;
+ }
+}
+
+static struct ppc4xx_pciex_hwops apm821xx_pcie_hwops __initdata = {
+ .want_sdr = true,
+ .core_init = apm821xx_pciex_core_init,
+ .port_init_hw = apm821xx_pciex_init_port_hw,
+ .setup_utl = ppc460ex_pciex_init_utl,
+ .check_link = ppc4xx_pciex_check_link_sdr,
+};
+
+static int __init ppc460sx_pciex_core_init(struct device_node *np)
+{
+ /* HSS drive amplitude */
+ mtdcri(SDR0, PESDR0_460SX_HSSL0DAMP, 0xB9843211);
+ mtdcri(SDR0, PESDR0_460SX_HSSL1DAMP, 0xB9843211);
+ mtdcri(SDR0, PESDR0_460SX_HSSL2DAMP, 0xB9843211);
+ mtdcri(SDR0, PESDR0_460SX_HSSL3DAMP, 0xB9843211);
+ mtdcri(SDR0, PESDR0_460SX_HSSL4DAMP, 0xB9843211);
+ mtdcri(SDR0, PESDR0_460SX_HSSL5DAMP, 0xB9843211);
+ mtdcri(SDR0, PESDR0_460SX_HSSL6DAMP, 0xB9843211);
+ mtdcri(SDR0, PESDR0_460SX_HSSL7DAMP, 0xB9843211);
+
+ mtdcri(SDR0, PESDR1_460SX_HSSL0DAMP, 0xB9843211);
+ mtdcri(SDR0, PESDR1_460SX_HSSL1DAMP, 0xB9843211);
+ mtdcri(SDR0, PESDR1_460SX_HSSL2DAMP, 0xB9843211);
+ mtdcri(SDR0, PESDR1_460SX_HSSL3DAMP, 0xB9843211);
+
+ mtdcri(SDR0, PESDR2_460SX_HSSL0DAMP, 0xB9843211);
+ mtdcri(SDR0, PESDR2_460SX_HSSL1DAMP, 0xB9843211);
+ mtdcri(SDR0, PESDR2_460SX_HSSL2DAMP, 0xB9843211);
+ mtdcri(SDR0, PESDR2_460SX_HSSL3DAMP, 0xB9843211);
+
+ /* HSS TX pre-emphasis */
+ mtdcri(SDR0, PESDR0_460SX_HSSL0COEFA, 0xDCB98987);
+ mtdcri(SDR0, PESDR0_460SX_HSSL1COEFA, 0xDCB98987);
+ mtdcri(SDR0, PESDR0_460SX_HSSL2COEFA, 0xDCB98987);
+ mtdcri(SDR0, PESDR0_460SX_HSSL3COEFA, 0xDCB98987);
+ mtdcri(SDR0, PESDR0_460SX_HSSL4COEFA, 0xDCB98987);
+ mtdcri(SDR0, PESDR0_460SX_HSSL5COEFA, 0xDCB98987);
+ mtdcri(SDR0, PESDR0_460SX_HSSL6COEFA, 0xDCB98987);
+ mtdcri(SDR0, PESDR0_460SX_HSSL7COEFA, 0xDCB98987);
+
+ mtdcri(SDR0, PESDR1_460SX_HSSL0COEFA, 0xDCB98987);
+ mtdcri(SDR0, PESDR1_460SX_HSSL1COEFA, 0xDCB98987);
+ mtdcri(SDR0, PESDR1_460SX_HSSL2COEFA, 0xDCB98987);
+ mtdcri(SDR0, PESDR1_460SX_HSSL3COEFA, 0xDCB98987);
+
+ mtdcri(SDR0, PESDR2_460SX_HSSL0COEFA, 0xDCB98987);
+ mtdcri(SDR0, PESDR2_460SX_HSSL1COEFA, 0xDCB98987);
+ mtdcri(SDR0, PESDR2_460SX_HSSL2COEFA, 0xDCB98987);
+ mtdcri(SDR0, PESDR2_460SX_HSSL3COEFA, 0xDCB98987);
+
+ /* HSS TX calibration control */
+ mtdcri(SDR0, PESDR0_460SX_HSSL1CALDRV, 0x22222222);
+ mtdcri(SDR0, PESDR1_460SX_HSSL1CALDRV, 0x22220000);
+ mtdcri(SDR0, PESDR2_460SX_HSSL1CALDRV, 0x22220000);
+
+ /* HSS TX slew control */
+ mtdcri(SDR0, PESDR0_460SX_HSSSLEW, 0xFFFFFFFF);
+ mtdcri(SDR0, PESDR1_460SX_HSSSLEW, 0xFFFF0000);
+ mtdcri(SDR0, PESDR2_460SX_HSSSLEW, 0xFFFF0000);
+
+ /* Set HSS PRBS enabled */
+ mtdcri(SDR0, PESDR0_460SX_HSSCTLSET, 0x00001130);
+ mtdcri(SDR0, PESDR2_460SX_HSSCTLSET, 0x00001130);
+
+ udelay(100);
+
+ /* De-assert PLLRESET */
+ dcri_clrset(SDR0, PESDR0_PLLLCT2, 0x00000100, 0);
+
+ /* Reset DL, UTL, GPL before configuration */
+ mtdcri(SDR0, PESDR0_460SX_RCSSET,
+ PESDRx_RCSSET_RSTDL | PESDRx_RCSSET_RSTGU);
+ mtdcri(SDR0, PESDR1_460SX_RCSSET,
+ PESDRx_RCSSET_RSTDL | PESDRx_RCSSET_RSTGU);
+ mtdcri(SDR0, PESDR2_460SX_RCSSET,
+ PESDRx_RCSSET_RSTDL | PESDRx_RCSSET_RSTGU);
+
+ udelay(100);
+
+ /*
+ * If bifurcation is not enabled, u-boot would have disabled the
+ * third PCIe port
+ */
+ if (((mfdcri(SDR0, PESDR1_460SX_HSSCTLSET) & 0x00000001) ==
+ 0x00000001)) {
+ printk(KERN_INFO "PCI: PCIE bifurcation setup successfully.\n");
+ printk(KERN_INFO "PCI: Total 3 PCIE ports are present\n");
+ return 3;
+ }
+
+ printk(KERN_INFO "PCI: Total 2 PCIE ports are present\n");
+ return 2;
+}
+
+static int __init ppc460sx_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
+{
+
+ if (port->endpoint)
+ dcri_clrset(SDR0, port->sdr_base + PESDRn_UTLSET2,
+ 0x01000000, 0);
+ else
+ dcri_clrset(SDR0, port->sdr_base + PESDRn_UTLSET2,
+ 0, 0x01000000);
+
+ dcri_clrset(SDR0, port->sdr_base + PESDRn_RCSSET,
+ (PESDRx_RCSSET_RSTGU | PESDRx_RCSSET_RSTDL),
+ PESDRx_RCSSET_RSTPYN);
+
+ port->has_ibpre = 1;
+
+ return ppc4xx_pciex_port_reset_sdr(port);
+}
+
+static int ppc460sx_pciex_init_utl(struct ppc4xx_pciex_port *port)
+{
+ /* Max 128 Bytes */
+ out_be32 (port->utl_base + PEUTL_PBBSZ, 0x00000000);
+ /* Assert VRB and TXE - per datasheet turn off addr validation */
+ out_be32(port->utl_base + PEUTL_PCTL, 0x80800000);
+ return 0;
+}
+
+static void __init ppc460sx_pciex_check_link(struct ppc4xx_pciex_port *port)
+{
+ void __iomem *mbase;
+ int attempt = 50;
+
+ port->link = 0;
+
+ mbase = ioremap(port->cfg_space.start + 0x10000000, 0x1000);
+ if (mbase == NULL) {
+ printk(KERN_ERR "%pOF: Can't map internal config space !",
+ port->node);
+ goto done;
+ }
+
+ while (attempt && (0 == (in_le32(mbase + PECFG_460SX_DLLSTA)
+ & PECFG_460SX_DLLSTA_LINKUP))) {
+ attempt--;
+ mdelay(10);
+ }
+ if (attempt)
+ port->link = 1;
+done:
+ iounmap(mbase);
+
+}
+
+static struct ppc4xx_pciex_hwops ppc460sx_pcie_hwops __initdata = {
+ .want_sdr = true,
+ .core_init = ppc460sx_pciex_core_init,
+ .port_init_hw = ppc460sx_pciex_init_port_hw,
+ .setup_utl = ppc460sx_pciex_init_utl,
+ .check_link = ppc460sx_pciex_check_link,
+};
+
+#endif /* CONFIG_44x */
+
+#ifdef CONFIG_40x
+
+static int __init ppc405ex_pciex_core_init(struct device_node *np)
+{
+ /* Nothing to do, return 2 ports */
+ return 2;
+}
+
+static void ppc405ex_pcie_phy_reset(struct ppc4xx_pciex_port *port)
+{
+ /* Assert the PE0_PHY reset */
+ mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET, 0x01010000);
+ msleep(1);
+
+ /* deassert the PE0_hotreset */
+ if (port->endpoint)
+ mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET, 0x01111000);
+ else
+ mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET, 0x01101000);
+
+ /* poll for phy !reset */
+ /* XXX FIXME add timeout */
+ while (!(mfdcri(SDR0, port->sdr_base + PESDRn_405EX_PHYSTA) & 0x00001000))
+ ;
+
+ /* deassert the PE0_gpl_utl_reset */
+ mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET, 0x00101000);
+}
+
+static int __init ppc405ex_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
+{
+ u32 val;
+
+ if (port->endpoint)
+ val = PTYPE_LEGACY_ENDPOINT;
+ else
+ val = PTYPE_ROOT_PORT;
+
+ mtdcri(SDR0, port->sdr_base + PESDRn_DLPSET,
+ 1 << 24 | val << 20 | LNKW_X1 << 12);
+
+ mtdcri(SDR0, port->sdr_base + PESDRn_UTLSET1, 0x00000000);
+ mtdcri(SDR0, port->sdr_base + PESDRn_UTLSET2, 0x01010000);
+ mtdcri(SDR0, port->sdr_base + PESDRn_405EX_PHYSET1, 0x720F0000);
+ mtdcri(SDR0, port->sdr_base + PESDRn_405EX_PHYSET2, 0x70600003);
+
+ /*
+ * Only reset the PHY when no link is currently established.
+ * This is for the Atheros PCIe board which has problems to establish
+ * the link (again) after this PHY reset. All other currently tested
+ * PCIe boards don't show this problem.
+ * This has to be re-tested and fixed in a later release!
+ */
+ val = mfdcri(SDR0, port->sdr_base + PESDRn_LOOP);
+ if (!(val & 0x00001000))
+ ppc405ex_pcie_phy_reset(port);
+
+ dcr_write(port->dcrs, DCRO_PEGPL_CFG, 0x10000000); /* guarded on */
+
+ port->has_ibpre = 1;
+
+ return ppc4xx_pciex_port_reset_sdr(port);
+}
+
+static int ppc405ex_pciex_init_utl(struct ppc4xx_pciex_port *port)
+{
+ dcr_write(port->dcrs, DCRO_PEGPL_SPECIAL, 0x0);
+
+ /*
+ * Set buffer allocations and then assert VRB and TXE.
+ */
+ out_be32(port->utl_base + PEUTL_OUTTR, 0x02000000);
+ out_be32(port->utl_base + PEUTL_INTR, 0x02000000);
+ out_be32(port->utl_base + PEUTL_OPDBSZ, 0x04000000);
+ out_be32(port->utl_base + PEUTL_PBBSZ, 0x21000000);
+ out_be32(port->utl_base + PEUTL_IPHBSZ, 0x02000000);
+ out_be32(port->utl_base + PEUTL_IPDBSZ, 0x04000000);
+ out_be32(port->utl_base + PEUTL_RCIRQEN, 0x00f00000);
+ out_be32(port->utl_base + PEUTL_PCTL, 0x80800066);
+
+ out_be32(port->utl_base + PEUTL_PBCTL, 0x08000000);
+
+ return 0;
+}
+
+static struct ppc4xx_pciex_hwops ppc405ex_pcie_hwops __initdata =
+{
+ .want_sdr = true,
+ .core_init = ppc405ex_pciex_core_init,
+ .port_init_hw = ppc405ex_pciex_init_port_hw,
+ .setup_utl = ppc405ex_pciex_init_utl,
+ .check_link = ppc4xx_pciex_check_link_sdr,
+};
+
+#endif /* CONFIG_40x */
+
+#ifdef CONFIG_476FPE
+static int __init ppc_476fpe_pciex_core_init(struct device_node *np)
+{
+ return 4;
+}
+
+static void __init ppc_476fpe_pciex_check_link(struct ppc4xx_pciex_port *port)
+{
+ u32 timeout_ms = 20;
+ u32 val = 0, mask = (PECFG_TLDLP_LNKUP|PECFG_TLDLP_PRESENT);
+ void __iomem *mbase = ioremap(port->cfg_space.start + 0x10000000,
+ 0x1000);
+
+ printk(KERN_INFO "PCIE%d: Checking link...\n", port->index);
+
+ if (mbase == NULL) {
+ printk(KERN_WARNING "PCIE%d: failed to get cfg space\n",
+ port->index);
+ return;
+ }
+
+ while (timeout_ms--) {
+ val = in_le32(mbase + PECFG_TLDLP);
+
+ if ((val & mask) == mask)
+ break;
+ msleep(10);
+ }
+
+ if (val & PECFG_TLDLP_PRESENT) {
+ printk(KERN_INFO "PCIE%d: link is up !\n", port->index);
+ port->link = 1;
+ } else
+ printk(KERN_WARNING "PCIE%d: Link up failed\n", port->index);
+
+ iounmap(mbase);
+ return;
+}
+
+static struct ppc4xx_pciex_hwops ppc_476fpe_pcie_hwops __initdata =
+{
+ .core_init = ppc_476fpe_pciex_core_init,
+ .check_link = ppc_476fpe_pciex_check_link,
+};
+#endif /* CONFIG_476FPE */
+
+/* Check that the core has been initied and if not, do it */
+static int __init ppc4xx_pciex_check_core_init(struct device_node *np)
+{
+ static int core_init;
+ int count = -ENODEV;
+
+ if (core_init++)
+ return 0;
+
+#ifdef CONFIG_44x
+ if (of_device_is_compatible(np, "ibm,plb-pciex-440spe")) {
+ if (ppc440spe_revA())
+ ppc4xx_pciex_hwops = &ppc440speA_pcie_hwops;
+ else
+ ppc4xx_pciex_hwops = &ppc440speB_pcie_hwops;
+ }
+ if (of_device_is_compatible(np, "ibm,plb-pciex-460ex"))
+ ppc4xx_pciex_hwops = &ppc460ex_pcie_hwops;
+ if (of_device_is_compatible(np, "ibm,plb-pciex-460sx"))
+ ppc4xx_pciex_hwops = &ppc460sx_pcie_hwops;
+ if (of_device_is_compatible(np, "ibm,plb-pciex-apm821xx"))
+ ppc4xx_pciex_hwops = &apm821xx_pcie_hwops;
+#endif /* CONFIG_44x */
+#ifdef CONFIG_40x
+ if (of_device_is_compatible(np, "ibm,plb-pciex-405ex"))
+ ppc4xx_pciex_hwops = &ppc405ex_pcie_hwops;
+#endif
+#ifdef CONFIG_476FPE
+ if (of_device_is_compatible(np, "ibm,plb-pciex-476fpe")
+ || of_device_is_compatible(np, "ibm,plb-pciex-476gtr"))
+ ppc4xx_pciex_hwops = &ppc_476fpe_pcie_hwops;
+#endif
+ if (ppc4xx_pciex_hwops == NULL) {
+ printk(KERN_WARNING "PCIE: unknown host type %pOF\n", np);
+ return -ENODEV;
+ }
+
+ count = ppc4xx_pciex_hwops->core_init(np);
+ if (count > 0) {
+ ppc4xx_pciex_ports =
+ kzalloc(count * sizeof(struct ppc4xx_pciex_port),
+ GFP_KERNEL);
+ if (ppc4xx_pciex_ports) {
+ ppc4xx_pciex_port_count = count;
+ return 0;
+ }
+ printk(KERN_WARNING "PCIE: failed to allocate ports array\n");
+ return -ENOMEM;
+ }
+ return -ENODEV;
+}
+
+static void __init ppc4xx_pciex_port_init_mapping(struct ppc4xx_pciex_port *port)
+{
+ /* We map PCI Express configuration based on the reg property */
+ dcr_write(port->dcrs, DCRO_PEGPL_CFGBAH,
+ RES_TO_U32_HIGH(port->cfg_space.start));
+ dcr_write(port->dcrs, DCRO_PEGPL_CFGBAL,
+ RES_TO_U32_LOW(port->cfg_space.start));
+
+ /* XXX FIXME: Use size from reg property. For now, map 512M */
+ dcr_write(port->dcrs, DCRO_PEGPL_CFGMSK, 0xe0000001);
+
+ /* We map UTL registers based on the reg property */
+ dcr_write(port->dcrs, DCRO_PEGPL_REGBAH,
+ RES_TO_U32_HIGH(port->utl_regs.start));
+ dcr_write(port->dcrs, DCRO_PEGPL_REGBAL,
+ RES_TO_U32_LOW(port->utl_regs.start));
+
+ /* XXX FIXME: Use size from reg property */
+ dcr_write(port->dcrs, DCRO_PEGPL_REGMSK, 0x00007001);
+
+ /* Disable all other outbound windows */
+ dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL, 0);
+ dcr_write(port->dcrs, DCRO_PEGPL_OMR2MSKL, 0);
+ dcr_write(port->dcrs, DCRO_PEGPL_OMR3MSKL, 0);
+ dcr_write(port->dcrs, DCRO_PEGPL_MSGMSK, 0);
+}
+
+static int __init ppc4xx_pciex_port_init(struct ppc4xx_pciex_port *port)
+{
+ int rc = 0;
+
+ /* Init HW */
+ if (ppc4xx_pciex_hwops->port_init_hw)
+ rc = ppc4xx_pciex_hwops->port_init_hw(port);
+ if (rc != 0)
+ return rc;
+
+ /*
+ * Initialize mapping: disable all regions and configure
+ * CFG and REG regions based on resources in the device tree
+ */
+ ppc4xx_pciex_port_init_mapping(port);
+
+ if (ppc4xx_pciex_hwops->check_link)
+ ppc4xx_pciex_hwops->check_link(port);
+
+ /*
+ * Map UTL
+ */
+ port->utl_base = ioremap(port->utl_regs.start, 0x100);
+ BUG_ON(port->utl_base == NULL);
+
+ /*
+ * Setup UTL registers --BenH.
+ */
+ if (ppc4xx_pciex_hwops->setup_utl)
+ ppc4xx_pciex_hwops->setup_utl(port);
+
+ /*
+ * Check for VC0 active or PLL Locked and assert RDY.
+ */
+ if (port->sdr_base) {
+ if (of_device_is_compatible(port->node,
+ "ibm,plb-pciex-460sx")){
+ if (port->link && ppc4xx_pciex_wait_on_sdr(port,
+ PESDRn_RCSSTS,
+ 1 << 12, 1 << 12, 5000)) {
+ printk(KERN_INFO "PCIE%d: PLL not locked\n",
+ port->index);
+ port->link = 0;
+ }
+ } else if (port->link &&
+ ppc4xx_pciex_wait_on_sdr(port, PESDRn_RCSSTS,
+ 1 << 16, 1 << 16, 5000)) {
+ printk(KERN_INFO "PCIE%d: VC0 not active\n",
+ port->index);
+ port->link = 0;
+ }
+
+ dcri_clrset(SDR0, port->sdr_base + PESDRn_RCSSET, 0, 1 << 20);
+ }
+
+ msleep(100);
+
+ return 0;
+}
+
+static int ppc4xx_pciex_validate_bdf(struct ppc4xx_pciex_port *port,
+ struct pci_bus *bus,
+ unsigned int devfn)
+{
+ static int message;
+
+ /* Endpoint can not generate upstream(remote) config cycles */
+ if (port->endpoint && bus->number != port->hose->first_busno)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ /* Check we are within the mapped range */
+ if (bus->number > port->hose->last_busno) {
+ if (!message) {
+ printk(KERN_WARNING "Warning! Probing bus %u"
+ " out of range !\n", bus->number);
+ message++;
+ }
+ return PCIBIOS_DEVICE_NOT_FOUND;
+ }
+
+ /* The root complex has only one device / function */
+ if (bus->number == port->hose->first_busno && devfn != 0)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ /* The other side of the RC has only one device as well */
+ if (bus->number == (port->hose->first_busno + 1) &&
+ PCI_SLOT(devfn) != 0)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ /* Check if we have a link */
+ if ((bus->number != port->hose->first_busno) && !port->link)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ return 0;
+}
+
+static void __iomem *ppc4xx_pciex_get_config_base(struct ppc4xx_pciex_port *port,
+ struct pci_bus *bus,
+ unsigned int devfn)
+{
+ int relbus;
+
+ /* Remove the casts when we finally remove the stupid volatile
+ * in struct pci_controller
+ */
+ if (bus->number == port->hose->first_busno)
+ return (void __iomem *)port->hose->cfg_addr;
+
+ relbus = bus->number - (port->hose->first_busno + 1);
+ return (void __iomem *)port->hose->cfg_data +
+ ((relbus << 20) | (devfn << 12));
+}
+
+static int ppc4xx_pciex_read_config(struct pci_bus *bus, unsigned int devfn,
+ int offset, int len, u32 *val)
+{
+ struct pci_controller *hose = pci_bus_to_host(bus);
+ struct ppc4xx_pciex_port *port =
+ &ppc4xx_pciex_ports[hose->indirect_type];
+ void __iomem *addr;
+ u32 gpl_cfg;
+
+ BUG_ON(hose != port->hose);
+
+ if (ppc4xx_pciex_validate_bdf(port, bus, devfn) != 0)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ addr = ppc4xx_pciex_get_config_base(port, bus, devfn);
+
+ /*
+ * Reading from configuration space of non-existing device can
+ * generate transaction errors. For the read duration we suppress
+ * assertion of machine check exceptions to avoid those.
+ */
+ gpl_cfg = dcr_read(port->dcrs, DCRO_PEGPL_CFG);
+ dcr_write(port->dcrs, DCRO_PEGPL_CFG, gpl_cfg | GPL_DMER_MASK_DISA);
+
+ /* Make sure no CRS is recorded */
+ out_be32(port->utl_base + PEUTL_RCSTA, 0x00040000);
+
+ switch (len) {
+ case 1:
+ *val = in_8((u8 *)(addr + offset));
+ break;
+ case 2:
+ *val = in_le16((u16 *)(addr + offset));
+ break;
+ default:
+ *val = in_le32((u32 *)(addr + offset));
+ break;
+ }
+
+ pr_debug("pcie-config-read: bus=%3d [%3d..%3d] devfn=0x%04x"
+ " offset=0x%04x len=%d, addr=0x%p val=0x%08x\n",
+ bus->number, hose->first_busno, hose->last_busno,
+ devfn, offset, len, addr + offset, *val);
+
+ /* Check for CRS (440SPe rev B does that for us but heh ..) */
+ if (in_be32(port->utl_base + PEUTL_RCSTA) & 0x00040000) {
+ pr_debug("Got CRS !\n");
+ if (len != 4 || offset != 0)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+ *val = 0xffff0001;
+ }
+
+ dcr_write(port->dcrs, DCRO_PEGPL_CFG, gpl_cfg);
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+static int ppc4xx_pciex_write_config(struct pci_bus *bus, unsigned int devfn,
+ int offset, int len, u32 val)
+{
+ struct pci_controller *hose = pci_bus_to_host(bus);
+ struct ppc4xx_pciex_port *port =
+ &ppc4xx_pciex_ports[hose->indirect_type];
+ void __iomem *addr;
+ u32 gpl_cfg;
+
+ if (ppc4xx_pciex_validate_bdf(port, bus, devfn) != 0)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ addr = ppc4xx_pciex_get_config_base(port, bus, devfn);
+
+ /*
+ * Reading from configuration space of non-existing device can
+ * generate transaction errors. For the read duration we suppress
+ * assertion of machine check exceptions to avoid those.
+ */
+ gpl_cfg = dcr_read(port->dcrs, DCRO_PEGPL_CFG);
+ dcr_write(port->dcrs, DCRO_PEGPL_CFG, gpl_cfg | GPL_DMER_MASK_DISA);
+
+ pr_debug("pcie-config-write: bus=%3d [%3d..%3d] devfn=0x%04x"
+ " offset=0x%04x len=%d, addr=0x%p val=0x%08x\n",
+ bus->number, hose->first_busno, hose->last_busno,
+ devfn, offset, len, addr + offset, val);
+
+ switch (len) {
+ case 1:
+ out_8((u8 *)(addr + offset), val);
+ break;
+ case 2:
+ out_le16((u16 *)(addr + offset), val);
+ break;
+ default:
+ out_le32((u32 *)(addr + offset), val);
+ break;
+ }
+
+ dcr_write(port->dcrs, DCRO_PEGPL_CFG, gpl_cfg);
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+static struct pci_ops ppc4xx_pciex_pci_ops =
+{
+ .read = ppc4xx_pciex_read_config,
+ .write = ppc4xx_pciex_write_config,
+};
+
+static int __init ppc4xx_setup_one_pciex_POM(struct ppc4xx_pciex_port *port,
+ struct pci_controller *hose,
+ void __iomem *mbase,
+ u64 plb_addr,
+ u64 pci_addr,
+ u64 size,
+ unsigned int flags,
+ int index)
+{
+ u32 lah, lal, pciah, pcial, sa;
+
+ if (!is_power_of_2(size) ||
+ (index < 2 && size < 0x100000) ||
+ (index == 2 && size < 0x100) ||
+ (plb_addr & (size - 1)) != 0) {
+ printk(KERN_WARNING "%pOF: Resource out of range\n", hose->dn);
+ return -1;
+ }
+
+ /* Calculate register values */
+ lah = RES_TO_U32_HIGH(plb_addr);
+ lal = RES_TO_U32_LOW(plb_addr);
+ pciah = RES_TO_U32_HIGH(pci_addr);
+ pcial = RES_TO_U32_LOW(pci_addr);
+ sa = (0xffffffffu << ilog2(size)) | 0x1;
+
+ /* Program register values */
+ switch (index) {
+ case 0:
+ out_le32(mbase + PECFG_POM0LAH, pciah);
+ out_le32(mbase + PECFG_POM0LAL, pcial);
+ dcr_write(port->dcrs, DCRO_PEGPL_OMR1BAH, lah);
+ dcr_write(port->dcrs, DCRO_PEGPL_OMR1BAL, lal);
+ dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKH, 0x7fffffff);
+ /*Enabled and single region */
+ if (of_device_is_compatible(port->node, "ibm,plb-pciex-460sx"))
+ dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL,
+ sa | DCRO_PEGPL_460SX_OMR1MSKL_UOT
+ | DCRO_PEGPL_OMRxMSKL_VAL);
+ else if (of_device_is_compatible(
+ port->node, "ibm,plb-pciex-476fpe") ||
+ of_device_is_compatible(
+ port->node, "ibm,plb-pciex-476gtr"))
+ dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL,
+ sa | DCRO_PEGPL_476FPE_OMR1MSKL_UOT
+ | DCRO_PEGPL_OMRxMSKL_VAL);
+ else
+ dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL,
+ sa | DCRO_PEGPL_OMR1MSKL_UOT
+ | DCRO_PEGPL_OMRxMSKL_VAL);
+ break;
+ case 1:
+ out_le32(mbase + PECFG_POM1LAH, pciah);
+ out_le32(mbase + PECFG_POM1LAL, pcial);
+ dcr_write(port->dcrs, DCRO_PEGPL_OMR2BAH, lah);
+ dcr_write(port->dcrs, DCRO_PEGPL_OMR2BAL, lal);
+ dcr_write(port->dcrs, DCRO_PEGPL_OMR2MSKH, 0x7fffffff);
+ dcr_write(port->dcrs, DCRO_PEGPL_OMR2MSKL,
+ sa | DCRO_PEGPL_OMRxMSKL_VAL);
+ break;
+ case 2:
+ out_le32(mbase + PECFG_POM2LAH, pciah);
+ out_le32(mbase + PECFG_POM2LAL, pcial);
+ dcr_write(port->dcrs, DCRO_PEGPL_OMR3BAH, lah);
+ dcr_write(port->dcrs, DCRO_PEGPL_OMR3BAL, lal);
+ dcr_write(port->dcrs, DCRO_PEGPL_OMR3MSKH, 0x7fffffff);
+ /* Note that 3 here means enabled | IO space !!! */
+ dcr_write(port->dcrs, DCRO_PEGPL_OMR3MSKL,
+ sa | DCRO_PEGPL_OMR3MSKL_IO
+ | DCRO_PEGPL_OMRxMSKL_VAL);
+ break;
+ }
+
+ return 0;
+}
+
+static void __init ppc4xx_configure_pciex_POMs(struct ppc4xx_pciex_port *port,
+ struct pci_controller *hose,
+ void __iomem *mbase)
+{
+ int i, j, found_isa_hole = 0;
+
+ /* Setup outbound memory windows */
+ for (i = j = 0; i < 3; i++) {
+ struct resource *res = &hose->mem_resources[i];
+ resource_size_t offset = hose->mem_offset[i];
+
+ /* we only care about memory windows */
+ if (!(res->flags & IORESOURCE_MEM))
+ continue;
+ if (j > 1) {
+ printk(KERN_WARNING "%pOF: Too many ranges\n",
+ port->node);
+ break;
+ }
+
+ /* Configure the resource */
+ if (ppc4xx_setup_one_pciex_POM(port, hose, mbase,
+ res->start,
+ res->start - offset,
+ resource_size(res),
+ res->flags,
+ j) == 0) {
+ j++;
+
+ /* If the resource PCI address is 0 then we have our
+ * ISA memory hole
+ */
+ if (res->start == offset)
+ found_isa_hole = 1;
+ }
+ }
+
+ /* Handle ISA memory hole if not already covered */
+ if (j <= 1 && !found_isa_hole && hose->isa_mem_size)
+ if (ppc4xx_setup_one_pciex_POM(port, hose, mbase,
+ hose->isa_mem_phys, 0,
+ hose->isa_mem_size, 0, j) == 0)
+ printk(KERN_INFO "%pOF: Legacy ISA memory support enabled\n",
+ hose->dn);
+
+ /* Configure IO, always 64K starting at 0. We hard wire it to 64K !
+ * Note also that it -has- to be region index 2 on this HW
+ */
+ if (hose->io_resource.flags & IORESOURCE_IO)
+ ppc4xx_setup_one_pciex_POM(port, hose, mbase,
+ hose->io_base_phys, 0,
+ 0x10000, IORESOURCE_IO, 2);
+}
+
+static void __init ppc4xx_configure_pciex_PIMs(struct ppc4xx_pciex_port *port,
+ struct pci_controller *hose,
+ void __iomem *mbase,
+ struct resource *res)
+{
+ resource_size_t size = resource_size(res);
+ u64 sa;
+
+ if (port->endpoint) {
+ resource_size_t ep_addr = 0;
+ resource_size_t ep_size = 32 << 20;
+
+ /* Currently we map a fixed 64MByte window to PLB address
+ * 0 (SDRAM). This should probably be configurable via a dts
+ * property.
+ */
+
+ /* Calculate window size */
+ sa = (0xffffffffffffffffull << ilog2(ep_size));
+
+ /* Setup BAR0 */
+ out_le32(mbase + PECFG_BAR0HMPA, RES_TO_U32_HIGH(sa));
+ out_le32(mbase + PECFG_BAR0LMPA, RES_TO_U32_LOW(sa) |
+ PCI_BASE_ADDRESS_MEM_TYPE_64);
+
+ /* Disable BAR1 & BAR2 */
+ out_le32(mbase + PECFG_BAR1MPA, 0);
+ out_le32(mbase + PECFG_BAR2HMPA, 0);
+ out_le32(mbase + PECFG_BAR2LMPA, 0);
+
+ out_le32(mbase + PECFG_PIM01SAH, RES_TO_U32_HIGH(sa));
+ out_le32(mbase + PECFG_PIM01SAL, RES_TO_U32_LOW(sa));
+
+ out_le32(mbase + PCI_BASE_ADDRESS_0, RES_TO_U32_LOW(ep_addr));
+ out_le32(mbase + PCI_BASE_ADDRESS_1, RES_TO_U32_HIGH(ep_addr));
+ } else {
+ /* Calculate window size */
+ sa = (0xffffffffffffffffull << ilog2(size));
+ if (res->flags & IORESOURCE_PREFETCH)
+ sa |= PCI_BASE_ADDRESS_MEM_PREFETCH;
+
+ if (of_device_is_compatible(port->node, "ibm,plb-pciex-460sx") ||
+ of_device_is_compatible(
+ port->node, "ibm,plb-pciex-476fpe") ||
+ of_device_is_compatible(
+ port->node, "ibm,plb-pciex-476gtr"))
+ sa |= PCI_BASE_ADDRESS_MEM_TYPE_64;
+
+ out_le32(mbase + PECFG_BAR0HMPA, RES_TO_U32_HIGH(sa));
+ out_le32(mbase + PECFG_BAR0LMPA, RES_TO_U32_LOW(sa));
+
+ /* The setup of the split looks weird to me ... let's see
+ * if it works
+ */
+ out_le32(mbase + PECFG_PIM0LAL, 0x00000000);
+ out_le32(mbase + PECFG_PIM0LAH, 0x00000000);
+ out_le32(mbase + PECFG_PIM1LAL, 0x00000000);
+ out_le32(mbase + PECFG_PIM1LAH, 0x00000000);
+ out_le32(mbase + PECFG_PIM01SAH, 0xffff0000);
+ out_le32(mbase + PECFG_PIM01SAL, 0x00000000);
+
+ out_le32(mbase + PCI_BASE_ADDRESS_0, RES_TO_U32_LOW(res->start));
+ out_le32(mbase + PCI_BASE_ADDRESS_1, RES_TO_U32_HIGH(res->start));
+ }
+
+ /* Enable inbound mapping */
+ out_le32(mbase + PECFG_PIMEN, 0x1);
+
+ /* Enable I/O, Mem, and Busmaster cycles */
+ out_le16(mbase + PCI_COMMAND,
+ in_le16(mbase + PCI_COMMAND) |
+ PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
+}
+
+static void __init ppc4xx_pciex_port_setup_hose(struct ppc4xx_pciex_port *port)
+{
+ struct resource dma_window;
+ struct pci_controller *hose = NULL;
+ const int *bus_range;
+ int primary = 0, busses;
+ void __iomem *mbase = NULL, *cfg_data = NULL;
+ const u32 *pval;
+ u32 val;
+
+ /* Check if primary bridge */
+ if (of_get_property(port->node, "primary", NULL))
+ primary = 1;
+
+ /* Get bus range if any */
+ bus_range = of_get_property(port->node, "bus-range", NULL);
+
+ /* Allocate the host controller data structure */
+ hose = pcibios_alloc_controller(port->node);
+ if (!hose)
+ goto fail;
+
+ /* We stick the port number in "indirect_type" so the config space
+ * ops can retrieve the port data structure easily
+ */
+ hose->indirect_type = port->index;
+
+ /* Get bus range */
+ hose->first_busno = bus_range ? bus_range[0] : 0x0;
+ hose->last_busno = bus_range ? bus_range[1] : 0xff;
+
+ /* Because of how big mapping the config space is (1M per bus), we
+ * limit how many busses we support. In the long run, we could replace
+ * that with something akin to kmap_atomic instead. We set aside 1 bus
+ * for the host itself too.
+ */
+ busses = hose->last_busno - hose->first_busno; /* This is off by 1 */
+ if (busses > MAX_PCIE_BUS_MAPPED) {
+ busses = MAX_PCIE_BUS_MAPPED;
+ hose->last_busno = hose->first_busno + busses;
+ }
+
+ if (!port->endpoint) {
+ /* Only map the external config space in cfg_data for
+ * PCIe root-complexes. External space is 1M per bus
+ */
+ cfg_data = ioremap(port->cfg_space.start +
+ (hose->first_busno + 1) * 0x100000,
+ busses * 0x100000);
+ if (cfg_data == NULL) {
+ printk(KERN_ERR "%pOF: Can't map external config space !",
+ port->node);
+ goto fail;
+ }
+ hose->cfg_data = cfg_data;
+ }
+
+ /* Always map the host config space in cfg_addr.
+ * Internal space is 4K
+ */
+ mbase = ioremap(port->cfg_space.start + 0x10000000, 0x1000);
+ if (mbase == NULL) {
+ printk(KERN_ERR "%pOF: Can't map internal config space !",
+ port->node);
+ goto fail;
+ }
+ hose->cfg_addr = mbase;
+
+ pr_debug("PCIE %pOF, bus %d..%d\n", port->node,
+ hose->first_busno, hose->last_busno);
+ pr_debug(" config space mapped at: root @0x%p, other @0x%p\n",
+ hose->cfg_addr, hose->cfg_data);
+
+ /* Setup config space */
+ hose->ops = &ppc4xx_pciex_pci_ops;
+ port->hose = hose;
+ mbase = (void __iomem *)hose->cfg_addr;
+
+ if (!port->endpoint) {
+ /*
+ * Set bus numbers on our root port
+ */
+ out_8(mbase + PCI_PRIMARY_BUS, hose->first_busno);
+ out_8(mbase + PCI_SECONDARY_BUS, hose->first_busno + 1);
+ out_8(mbase + PCI_SUBORDINATE_BUS, hose->last_busno);
+ }
+
+ /*
+ * OMRs are already reset, also disable PIMs
+ */
+ out_le32(mbase + PECFG_PIMEN, 0);
+
+ /* Parse outbound mapping resources */
+ pci_process_bridge_OF_ranges(hose, port->node, primary);
+
+ /* Parse inbound mapping resources */
+ if (ppc4xx_parse_dma_ranges(hose, mbase, &dma_window) != 0)
+ goto fail;
+
+ /* Configure outbound ranges POMs */
+ ppc4xx_configure_pciex_POMs(port, hose, mbase);
+
+ /* Configure inbound ranges PIMs */
+ ppc4xx_configure_pciex_PIMs(port, hose, mbase, &dma_window);
+
+ /* The root complex doesn't show up if we don't set some vendor
+ * and device IDs into it. The defaults below are the same bogus
+ * one that the initial code in arch/ppc had. This can be
+ * overwritten by setting the "vendor-id/device-id" properties
+ * in the pciex node.
+ */
+
+ /* Get the (optional) vendor-/device-id from the device-tree */
+ pval = of_get_property(port->node, "vendor-id", NULL);
+ if (pval) {
+ val = *pval;
+ } else {
+ if (!port->endpoint)
+ val = 0xaaa0 + port->index;
+ else
+ val = 0xeee0 + port->index;
+ }
+ out_le16(mbase + 0x200, val);
+
+ pval = of_get_property(port->node, "device-id", NULL);
+ if (pval) {
+ val = *pval;
+ } else {
+ if (!port->endpoint)
+ val = 0xbed0 + port->index;
+ else
+ val = 0xfed0 + port->index;
+ }
+ out_le16(mbase + 0x202, val);
+
+ /* Enable Bus master, memory, and io space */
+ if (of_device_is_compatible(port->node, "ibm,plb-pciex-460sx"))
+ out_le16(mbase + 0x204, 0x7);
+
+ if (!port->endpoint) {
+ /* Set Class Code to PCI-PCI bridge and Revision Id to 1 */
+ out_le32(mbase + 0x208, 0x06040001);
+
+ printk(KERN_INFO "PCIE%d: successfully set as root-complex\n",
+ port->index);
+ } else {
+ /* Set Class Code to Processor/PPC */
+ out_le32(mbase + 0x208, 0x0b200001);
+
+ printk(KERN_INFO "PCIE%d: successfully set as endpoint\n",
+ port->index);
+ }
+
+ return;
+ fail:
+ if (hose)
+ pcibios_free_controller(hose);
+ if (cfg_data)
+ iounmap(cfg_data);
+ if (mbase)
+ iounmap(mbase);
+}
+
+static void __init ppc4xx_probe_pciex_bridge(struct device_node *np)
+{
+ struct ppc4xx_pciex_port *port;
+ const u32 *pval;
+ int portno;
+ unsigned int dcrs;
+ const char *val;
+
+ /* First, proceed to core initialization as we assume there's
+ * only one PCIe core in the system
+ */
+ if (ppc4xx_pciex_check_core_init(np))
+ return;
+
+ /* Get the port number from the device-tree */
+ pval = of_get_property(np, "port", NULL);
+ if (pval == NULL) {
+ printk(KERN_ERR "PCIE: Can't find port number for %pOF\n", np);
+ return;
+ }
+ portno = *pval;
+ if (portno >= ppc4xx_pciex_port_count) {
+ printk(KERN_ERR "PCIE: port number out of range for %pOF\n",
+ np);
+ return;
+ }
+ port = &ppc4xx_pciex_ports[portno];
+ port->index = portno;
+
+ /*
+ * Check if device is enabled
+ */
+ if (!of_device_is_available(np)) {
+ printk(KERN_INFO "PCIE%d: Port disabled via device-tree\n", port->index);
+ return;
+ }
+
+ port->node = of_node_get(np);
+ if (ppc4xx_pciex_hwops->want_sdr) {
+ pval = of_get_property(np, "sdr-base", NULL);
+ if (pval == NULL) {
+ printk(KERN_ERR "PCIE: missing sdr-base for %pOF\n",
+ np);
+ return;
+ }
+ port->sdr_base = *pval;
+ }
+
+ /* Check if device_type property is set to "pci" or "pci-endpoint".
+ * Resulting from this setup this PCIe port will be configured
+ * as root-complex or as endpoint.
+ */
+ val = of_get_property(port->node, "device_type", NULL);
+ if (!strcmp(val, "pci-endpoint")) {
+ port->endpoint = 1;
+ } else if (!strcmp(val, "pci")) {
+ port->endpoint = 0;
+ } else {
+ printk(KERN_ERR "PCIE: missing or incorrect device_type for %pOF\n",
+ np);
+ return;
+ }
+
+ /* Fetch config space registers address */
+ if (of_address_to_resource(np, 0, &port->cfg_space)) {
+ printk(KERN_ERR "%pOF: Can't get PCI-E config space !", np);
+ return;
+ }
+ /* Fetch host bridge internal registers address */
+ if (of_address_to_resource(np, 1, &port->utl_regs)) {
+ printk(KERN_ERR "%pOF: Can't get UTL register base !", np);
+ return;
+ }
+
+ /* Map DCRs */
+ dcrs = dcr_resource_start(np, 0);
+ if (dcrs == 0) {
+ printk(KERN_ERR "%pOF: Can't get DCR register base !", np);
+ return;
+ }
+ port->dcrs = dcr_map(np, dcrs, dcr_resource_len(np, 0));
+
+ /* Initialize the port specific registers */
+ if (ppc4xx_pciex_port_init(port)) {
+ printk(KERN_WARNING "PCIE%d: Port init failed\n", port->index);
+ return;
+ }
+
+ /* Setup the linux hose data structure */
+ ppc4xx_pciex_port_setup_hose(port);
+}
+
+#endif /* CONFIG_PPC4xx_PCI_EXPRESS */
+
+static int __init ppc4xx_pci_find_bridges(void)
+{
+ struct device_node *np;
+
+ pci_add_flags(PCI_ENABLE_PROC_DOMAINS | PCI_COMPAT_DOMAIN_0);
+
+#ifdef CONFIG_PPC4xx_PCI_EXPRESS
+ for_each_compatible_node(np, NULL, "ibm,plb-pciex")
+ ppc4xx_probe_pciex_bridge(np);
+#endif
+ for_each_compatible_node(np, NULL, "ibm,plb-pcix")
+ ppc4xx_probe_pcix_bridge(np);
+ for_each_compatible_node(np, NULL, "ibm,plb-pci")
+ ppc4xx_probe_pci_bridge(np);
+
+ return 0;
+}
+arch_initcall(ppc4xx_pci_find_bridges);
+
diff --git a/arch/powerpc/sysdev/ppc4xx_pci.h b/arch/powerpc/platforms/4xx/pci.h
index bb4821938ab1..bb4821938ab1 100644
--- a/arch/powerpc/sysdev/ppc4xx_pci.h
+++ b/arch/powerpc/platforms/4xx/pci.h
diff --git a/arch/powerpc/platforms/4xx/soc.c b/arch/powerpc/platforms/4xx/soc.c
new file mode 100644
index 000000000000..5e36508b2a70
--- /dev/null
+++ b/arch/powerpc/platforms/4xx/soc.c
@@ -0,0 +1,221 @@
+/*
+ * IBM/AMCC PPC4xx SoC setup code
+ *
+ * Copyright 2008 DENX Software Engineering, Stefan Roese <sr@denx.de>
+ *
+ * L2 cache routines cloned from arch/ppc/syslib/ibm440gx_common.c which is:
+ * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
+ * Copyright (c) 2003 - 2006 Zultys Technologies
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+
+#include <asm/dcr.h>
+#include <asm/dcr-regs.h>
+#include <asm/reg.h>
+
+static u32 dcrbase_l2c;
+
+/*
+ * L2-cache
+ */
+
+/* Issue L2C diagnostic command */
+static inline u32 l2c_diag(u32 addr)
+{
+ mtdcr(dcrbase_l2c + DCRN_L2C0_ADDR, addr);
+ mtdcr(dcrbase_l2c + DCRN_L2C0_CMD, L2C_CMD_DIAG);
+ while (!(mfdcr(dcrbase_l2c + DCRN_L2C0_SR) & L2C_SR_CC))
+ ;
+
+ return mfdcr(dcrbase_l2c + DCRN_L2C0_DATA);
+}
+
+static irqreturn_t l2c_error_handler(int irq, void *dev)
+{
+ u32 sr = mfdcr(dcrbase_l2c + DCRN_L2C0_SR);
+
+ if (sr & L2C_SR_CPE) {
+ /* Read cache trapped address */
+ u32 addr = l2c_diag(0x42000000);
+ printk(KERN_EMERG "L2C: Cache Parity Error, addr[16:26] = 0x%08x\n",
+ addr);
+ }
+ if (sr & L2C_SR_TPE) {
+ /* Read tag trapped address */
+ u32 addr = l2c_diag(0x82000000) >> 16;
+ printk(KERN_EMERG "L2C: Tag Parity Error, addr[16:26] = 0x%08x\n",
+ addr);
+ }
+
+ /* Clear parity errors */
+ if (sr & (L2C_SR_CPE | L2C_SR_TPE)){
+ mtdcr(dcrbase_l2c + DCRN_L2C0_ADDR, 0);
+ mtdcr(dcrbase_l2c + DCRN_L2C0_CMD, L2C_CMD_CCP | L2C_CMD_CTE);
+ } else {
+ printk(KERN_EMERG "L2C: LRU error\n");
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int __init ppc4xx_l2c_probe(void)
+{
+ struct device_node *np;
+ u32 r;
+ unsigned long flags;
+ int irq;
+ const u32 *dcrreg;
+ u32 dcrbase_isram;
+ int len;
+ const u32 *prop;
+ u32 l2_size;
+
+ np = of_find_compatible_node(NULL, NULL, "ibm,l2-cache");
+ if (!np)
+ return 0;
+
+ /* Get l2 cache size */
+ prop = of_get_property(np, "cache-size", NULL);
+ if (prop == NULL) {
+ printk(KERN_ERR "%pOF: Can't get cache-size!\n", np);
+ of_node_put(np);
+ return -ENODEV;
+ }
+ l2_size = prop[0];
+
+ /* Map DCRs */
+ dcrreg = of_get_property(np, "dcr-reg", &len);
+ if (!dcrreg || (len != 4 * sizeof(u32))) {
+ printk(KERN_ERR "%pOF: Can't get DCR register base !", np);
+ of_node_put(np);
+ return -ENODEV;
+ }
+ dcrbase_isram = dcrreg[0];
+ dcrbase_l2c = dcrreg[2];
+
+ /* Get and map irq number from device tree */
+ irq = irq_of_parse_and_map(np, 0);
+ if (!irq) {
+ printk(KERN_ERR "irq_of_parse_and_map failed\n");
+ of_node_put(np);
+ return -ENODEV;
+ }
+
+ /* Install error handler */
+ if (request_irq(irq, l2c_error_handler, 0, "L2C", 0) < 0) {
+ printk(KERN_ERR "Cannot install L2C error handler"
+ ", cache is not enabled\n");
+ of_node_put(np);
+ return -ENODEV;
+ }
+
+ local_irq_save(flags);
+ asm volatile ("sync" ::: "memory");
+
+ /* Disable SRAM */
+ mtdcr(dcrbase_isram + DCRN_SRAM0_DPC,
+ mfdcr(dcrbase_isram + DCRN_SRAM0_DPC) & ~SRAM_DPC_ENABLE);
+ mtdcr(dcrbase_isram + DCRN_SRAM0_SB0CR,
+ mfdcr(dcrbase_isram + DCRN_SRAM0_SB0CR) & ~SRAM_SBCR_BU_MASK);
+ mtdcr(dcrbase_isram + DCRN_SRAM0_SB1CR,
+ mfdcr(dcrbase_isram + DCRN_SRAM0_SB1CR) & ~SRAM_SBCR_BU_MASK);
+ mtdcr(dcrbase_isram + DCRN_SRAM0_SB2CR,
+ mfdcr(dcrbase_isram + DCRN_SRAM0_SB2CR) & ~SRAM_SBCR_BU_MASK);
+ mtdcr(dcrbase_isram + DCRN_SRAM0_SB3CR,
+ mfdcr(dcrbase_isram + DCRN_SRAM0_SB3CR) & ~SRAM_SBCR_BU_MASK);
+
+ /* Enable L2_MODE without ICU/DCU */
+ r = mfdcr(dcrbase_l2c + DCRN_L2C0_CFG) &
+ ~(L2C_CFG_ICU | L2C_CFG_DCU | L2C_CFG_SS_MASK);
+ r |= L2C_CFG_L2M | L2C_CFG_SS_256;
+ mtdcr(dcrbase_l2c + DCRN_L2C0_CFG, r);
+
+ mtdcr(dcrbase_l2c + DCRN_L2C0_ADDR, 0);
+
+ /* Hardware Clear Command */
+ mtdcr(dcrbase_l2c + DCRN_L2C0_CMD, L2C_CMD_HCC);
+ while (!(mfdcr(dcrbase_l2c + DCRN_L2C0_SR) & L2C_SR_CC))
+ ;
+
+ /* Clear Cache Parity and Tag Errors */
+ mtdcr(dcrbase_l2c + DCRN_L2C0_CMD, L2C_CMD_CCP | L2C_CMD_CTE);
+
+ /* Enable 64G snoop region starting at 0 */
+ r = mfdcr(dcrbase_l2c + DCRN_L2C0_SNP0) &
+ ~(L2C_SNP_BA_MASK | L2C_SNP_SSR_MASK);
+ r |= L2C_SNP_SSR_32G | L2C_SNP_ESR;
+ mtdcr(dcrbase_l2c + DCRN_L2C0_SNP0, r);
+
+ r = mfdcr(dcrbase_l2c + DCRN_L2C0_SNP1) &
+ ~(L2C_SNP_BA_MASK | L2C_SNP_SSR_MASK);
+ r |= 0x80000000 | L2C_SNP_SSR_32G | L2C_SNP_ESR;
+ mtdcr(dcrbase_l2c + DCRN_L2C0_SNP1, r);
+
+ asm volatile ("sync" ::: "memory");
+
+ /* Enable ICU/DCU ports */
+ r = mfdcr(dcrbase_l2c + DCRN_L2C0_CFG);
+ r &= ~(L2C_CFG_DCW_MASK | L2C_CFG_PMUX_MASK | L2C_CFG_PMIM
+ | L2C_CFG_TPEI | L2C_CFG_CPEI | L2C_CFG_NAM | L2C_CFG_NBRM);
+ r |= L2C_CFG_ICU | L2C_CFG_DCU | L2C_CFG_TPC | L2C_CFG_CPC | L2C_CFG_FRAN
+ | L2C_CFG_CPIM | L2C_CFG_TPIM | L2C_CFG_LIM | L2C_CFG_SMCM;
+
+ /* Check for 460EX/GT special handling */
+ if (of_device_is_compatible(np, "ibm,l2-cache-460ex") ||
+ of_device_is_compatible(np, "ibm,l2-cache-460gt"))
+ r |= L2C_CFG_RDBW;
+
+ mtdcr(dcrbase_l2c + DCRN_L2C0_CFG, r);
+
+ asm volatile ("sync; isync" ::: "memory");
+ local_irq_restore(flags);
+
+ printk(KERN_INFO "%dk L2-cache enabled\n", l2_size >> 10);
+
+ of_node_put(np);
+ return 0;
+}
+arch_initcall(ppc4xx_l2c_probe);
+
+/*
+ * Apply a system reset. Alternatively a board specific value may be
+ * provided via the "reset-type" property in the cpu node.
+ */
+void ppc4xx_reset_system(char *cmd)
+{
+ struct device_node *np;
+ u32 reset_type = DBCR0_RST_SYSTEM;
+ const u32 *prop;
+
+ np = of_find_node_by_type(NULL, "cpu");
+ if (np) {
+ prop = of_get_property(np, "reset-type", NULL);
+
+ /*
+ * Check if property exists and if it is in range:
+ * 1 - PPC4xx core reset
+ * 2 - PPC4xx chip reset
+ * 3 - PPC4xx system reset (default)
+ */
+ if ((prop) && ((prop[0] >= 1) && (prop[0] <= 3)))
+ reset_type = prop[0] << 28;
+ }
+
+ mtspr(SPRN_DBCR0, mfspr(SPRN_DBCR0) | reset_type);
+
+ while (1)
+ ; /* Just in case the reset doesn't work */
+}
diff --git a/arch/powerpc/sysdev/uic.c b/arch/powerpc/platforms/4xx/uic.c
index a00949f3e378..8b4dd0da0839 100644
--- a/arch/powerpc/sysdev/uic.c
+++ b/arch/powerpc/platforms/4xx/uic.c
@@ -243,16 +243,16 @@ static struct uic * __init uic_init_one(struct device_node *node)
raw_spin_lock_init(&uic->lock);
indexp = of_get_property(node, "cell-index", &len);
if (!indexp || (len != sizeof(u32))) {
- printk(KERN_ERR "uic: Device node %s has missing or invalid "
- "cell-index property\n", node->full_name);
+ printk(KERN_ERR "uic: Device node %pOF has missing or invalid "
+ "cell-index property\n", node);
return NULL;
}
uic->index = *indexp;
dcrreg = of_get_property(node, "dcr-reg", &len);
if (!dcrreg || (len != 2*sizeof(u32))) {
- printk(KERN_ERR "uic: Device node %s has missing or invalid "
- "dcr-reg property\n", node->full_name);
+ printk(KERN_ERR "uic: Device node %pOF has missing or invalid "
+ "dcr-reg property\n", node);
return NULL;
}
uic->dcrbase = *dcrreg;
@@ -292,7 +292,7 @@ void __init uic_init_tree(void)
* top-level interrupt controller */
primary_uic = uic_init_one(np);
if (!primary_uic)
- panic("Unable to initialize primary UIC %s\n", np->full_name);
+ panic("Unable to initialize primary UIC %pOF\n", np);
irq_set_default_host(primary_uic->irqhost);
of_node_put(np);
@@ -306,8 +306,8 @@ void __init uic_init_tree(void)
uic = uic_init_one(np);
if (! uic)
- panic("Unable to initialize a secondary UIC %s\n",
- np->full_name);
+ panic("Unable to initialize a secondary UIC %pOF\n",
+ np);
cascade_virq = irq_of_parse_and_map(np, 0);
diff --git a/arch/powerpc/platforms/512x/clock-commonclk.c b/arch/powerpc/platforms/512x/clock-commonclk.c
index add5a5374fa0..b3097fe6441b 100644
--- a/arch/powerpc/platforms/512x/clock-commonclk.c
+++ b/arch/powerpc/platforms/512x/clock-commonclk.c
@@ -363,7 +363,7 @@ static int get_cpmf_mult_x2(void)
*/
/* applies to the IPS_DIV, and PCI_DIV values */
-static struct clk_div_table divtab_2346[] = {
+static const struct clk_div_table divtab_2346[] = {
{ .val = 2, .div = 2, },
{ .val = 3, .div = 3, },
{ .val = 4, .div = 4, },
@@ -372,7 +372,7 @@ static struct clk_div_table divtab_2346[] = {
};
/* applies to the MBX_DIV, LPC_DIV, and NFC_DIV values */
-static struct clk_div_table divtab_1234[] = {
+static const struct clk_div_table divtab_1234[] = {
{ .val = 1, .div = 1, },
{ .val = 2, .div = 2, },
{ .val = 3, .div = 3, },
diff --git a/arch/powerpc/platforms/512x/mpc512x_shared.c b/arch/powerpc/platforms/512x/mpc512x_shared.c
index 6b4f4cb7009a..f99e79ee060e 100644
--- a/arch/powerpc/platforms/512x/mpc512x_shared.c
+++ b/arch/powerpc/platforms/512x/mpc512x_shared.c
@@ -387,8 +387,8 @@ static unsigned int __init get_fifo_size(struct device_node *np,
if (fp)
return *fp;
- pr_warning("no %s property in %s node, defaulting to %d\n",
- prop_name, np->full_name, DEFAULT_FIFO_SIZE);
+ pr_warning("no %s property in %pOF node, defaulting to %d\n",
+ prop_name, np, DEFAULT_FIFO_SIZE);
return DEFAULT_FIFO_SIZE;
}
@@ -426,15 +426,15 @@ static void __init mpc512x_psc_fifo_init(void)
psc = of_iomap(np, 0);
if (!psc) {
- pr_err("%s: Can't map %s device\n",
- __func__, np->full_name);
+ pr_err("%s: Can't map %pOF device\n",
+ __func__, np);
continue;
}
/* FIFO space is 4KiB, check if requested size is available */
if ((fifobase + tx_fifo_size + rx_fifo_size) > 0x1000) {
- pr_err("%s: no fifo space available for %s\n",
- __func__, np->full_name);
+ pr_err("%s: no fifo space available for %pOF\n",
+ __func__, np);
iounmap(psc);
/*
* chances are that another device requests less
diff --git a/arch/powerpc/platforms/52xx/efika.c b/arch/powerpc/platforms/52xx/efika.c
index 39b49822ace1..1ecbf176d35a 100644
--- a/arch/powerpc/platforms/52xx/efika.c
+++ b/arch/powerpc/platforms/52xx/efika.c
@@ -99,7 +99,7 @@ static void __init efika_pcisetup(void)
bus_range = of_get_property(pcictrl, "bus-range", &len);
if (bus_range == NULL || len < 2 * sizeof(int)) {
printk(KERN_WARNING EFIKA_PLATFORM_NAME
- ": Can't get bus-range for %s\n", pcictrl->full_name);
+ ": Can't get bus-range for %pOF\n", pcictrl);
goto out_put;
}
@@ -109,14 +109,14 @@ static void __init efika_pcisetup(void)
else
printk(KERN_INFO EFIKA_PLATFORM_NAME ": PCI buses %d..%d",
bus_range[0], bus_range[1]);
- printk(" controlled by %s\n", pcictrl->full_name);
+ printk(" controlled by %pOF\n", pcictrl);
printk("\n");
hose = pcibios_alloc_controller(pcictrl);
if (!hose) {
printk(KERN_WARNING EFIKA_PLATFORM_NAME
- ": Can't allocate PCI controller structure for %s\n",
- pcictrl->full_name);
+ ": Can't allocate PCI controller structure for %pOF\n",
+ pcictrl);
goto out_put;
}
diff --git a/arch/powerpc/platforms/52xx/media5200.c b/arch/powerpc/platforms/52xx/media5200.c
index a3227040cc86..1fcab233d2f2 100644
--- a/arch/powerpc/platforms/52xx/media5200.c
+++ b/arch/powerpc/platforms/52xx/media5200.c
@@ -156,7 +156,7 @@ static void __init media5200_init_irq(void)
fpga_np = of_find_compatible_node(NULL, NULL, "fsl,media5200-fpga");
if (!fpga_np)
goto out;
- pr_debug("%s: found fpga node: %s\n", __func__, fpga_np->full_name);
+ pr_debug("%s: found fpga node: %pOF\n", __func__, fpga_np);
media5200_irq.regs = of_iomap(fpga_np, 0);
if (!media5200_irq.regs)
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_gpt.c b/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
index 22645a7c6b8a..9e974b1e1697 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
@@ -226,7 +226,7 @@ static int mpc52xx_gpt_irq_xlate(struct irq_domain *h, struct device_node *ct,
dev_dbg(gpt->dev, "%s: flags=%i\n", __func__, intspec[0]);
if ((intsize < 1) || (intspec[0] > 3)) {
- dev_err(gpt->dev, "bad irq specifier in %s\n", ct->full_name);
+ dev_err(gpt->dev, "bad irq specifier in %pOF\n", ct);
return -EINVAL;
}
@@ -331,7 +331,7 @@ mpc52xx_gpt_gpio_setup(struct mpc52xx_gpt_priv *gpt, struct device_node *node)
if (!of_find_property(node, "gpio-controller", NULL))
return;
- gpt->gc.label = kstrdup(node->full_name, GFP_KERNEL);
+ gpt->gc.label = kasprintf(GFP_KERNEL, "%pOF", node);
if (!gpt->gc.label) {
dev_err(gpt->dev, "out of memory\n");
return;
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pci.c b/arch/powerpc/platforms/52xx/mpc52xx_pci.c
index 00282c2b0cae..af0f79995214 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pci.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pci.c
@@ -369,19 +369,19 @@ mpc52xx_add_bridge(struct device_node *node)
const int *bus_range;
struct resource rsrc;
- pr_debug("Adding MPC52xx PCI host bridge %s\n", node->full_name);
+ pr_debug("Adding MPC52xx PCI host bridge %pOF\n", node);
pci_add_flags(PCI_REASSIGN_ALL_BUS);
if (of_address_to_resource(node, 0, &rsrc) != 0) {
- printk(KERN_ERR "Can't get %s resources\n", node->full_name);
+ printk(KERN_ERR "Can't get %pOF resources\n", node);
return -EINVAL;
}
bus_range = of_get_property(node, "bus-range", &len);
if (bus_range == NULL || len < 2 * sizeof(int)) {
- printk(KERN_WARNING "Can't get %s bus-range, assume bus 0\n",
- node->full_name);
+ printk(KERN_WARNING "Can't get %pOF bus-range, assume bus 0\n",
+ node);
bus_range = NULL;
}
diff --git a/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c b/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c
index 63c5ab6489c9..96bb55ca61d3 100644
--- a/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c
+++ b/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c
@@ -128,7 +128,7 @@ static int mcu_gpiochip_add(struct mcu *mcu)
return -ENODEV;
gc->owner = THIS_MODULE;
- gc->label = np->full_name;
+ gc->label = kasprintf(GFP_KERNEL, "%pOF", np);
gc->can_sleep = 1;
gc->ngpio = MCU_NUM_GPIO;
gc->base = -1;
@@ -141,6 +141,7 @@ static int mcu_gpiochip_add(struct mcu *mcu)
static int mcu_gpiochip_remove(struct mcu *mcu)
{
+ kfree(mcu->gc.label);
gpiochip_remove(&mcu->gc);
return 0;
}
diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
index d7c9b186954d..a4539c5accb0 100644
--- a/arch/powerpc/platforms/83xx/mpc832x_rdb.c
+++ b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
@@ -89,7 +89,7 @@ static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk,
goto err;
ret = of_irq_to_resource(np, 0, &res[1]);
- if (!ret)
+ if (ret <= 0)
goto err;
pdev = platform_device_alloc("mpc83xx_spi", i);
@@ -113,7 +113,7 @@ static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk,
unreg:
platform_device_del(pdev);
err:
- pr_err("%s: registration failed\n", np->full_name);
+ pr_err("%pOF: registration failed\n", np);
next:
i++;
}
diff --git a/arch/powerpc/platforms/83xx/suspend.c b/arch/powerpc/platforms/83xx/suspend.c
index 978b85bb3233..7fa3e197871a 100644
--- a/arch/powerpc/platforms/83xx/suspend.c
+++ b/arch/powerpc/platforms/83xx/suspend.c
@@ -361,7 +361,7 @@ static int pmc_probe(struct platform_device *ofdev)
return -EBUSY;
}
- pmc_regs = ioremap(res.start, sizeof(struct mpc83xx_pmc));
+ pmc_regs = ioremap(res.start, sizeof(*pmc_regs));
if (!pmc_regs) {
ret = -ENOMEM;
@@ -374,7 +374,7 @@ static int pmc_probe(struct platform_device *ofdev)
goto out_pmc;
}
- clock_regs = ioremap(res.start, sizeof(struct mpc83xx_pmc));
+ clock_regs = ioremap(res.start, sizeof(*clock_regs));
if (!clock_regs) {
ret = -ENOMEM;
diff --git a/arch/powerpc/platforms/85xx/p1022_ds.c b/arch/powerpc/platforms/85xx/p1022_ds.c
index 0908abd7e36f..9fb57f78cdbe 100644
--- a/arch/powerpc/platforms/85xx/p1022_ds.c
+++ b/arch/powerpc/platforms/85xx/p1022_ds.c
@@ -508,8 +508,8 @@ static void __init p1022_ds_setup_arch(void)
* allocate one static local variable for each
* call to this function.
*/
- pr_info("p1022ds: disabling %s node",
- np2->full_name);
+ pr_info("p1022ds: disabling %pOF node",
+ np2);
of_update_property(np2, &nor_status);
of_node_put(np2);
}
@@ -524,8 +524,8 @@ static void __init p1022_ds_setup_arch(void)
.length = sizeof("disabled"),
};
- pr_info("p1022ds: disabling %s node",
- np2->full_name);
+ pr_info("p1022ds: disabling %pOF node",
+ np2);
of_update_property(np2, &nand_status);
of_node_put(np2);
}
diff --git a/arch/powerpc/platforms/85xx/xes_mpc85xx.c b/arch/powerpc/platforms/85xx/xes_mpc85xx.c
index cd6ce845f398..77e618dce4a8 100644
--- a/arch/powerpc/platforms/85xx/xes_mpc85xx.c
+++ b/arch/powerpc/platforms/85xx/xes_mpc85xx.c
@@ -100,8 +100,8 @@ static void xes_mpc85xx_fixups(void)
err = of_address_to_resource(np, 0, &r[0]);
if (err) {
printk(KERN_WARNING "xes_mpc85xx: Could not get "
- "resource for device tree node '%s'",
- np->full_name);
+ "resource for device tree node '%pOF'",
+ np);
continue;
}
diff --git a/arch/powerpc/platforms/8xx/Kconfig b/arch/powerpc/platforms/8xx/Kconfig
index 80cbcb0ad9b1..536b0c5d5ce3 100644
--- a/arch/powerpc/platforms/8xx/Kconfig
+++ b/arch/powerpc/platforms/8xx/Kconfig
@@ -5,7 +5,6 @@ config CPM1
choice
prompt "8xx Machine Type"
depends on PPC_8xx
- depends on 8xx
default MPC885ADS
config MPC8XXFADS
@@ -92,7 +91,7 @@ endmenu
#
menu "MPC8xx CPM Options"
- depends on 8xx
+ depends on PPC_8xx
# This doesn't really belong here, but it is convenient to ask
# 8xx specific questions.
diff --git a/arch/powerpc/platforms/8xx/Makefile b/arch/powerpc/platforms/8xx/Makefile
index 76a81c3350a8..f9af3218bd9c 100644
--- a/arch/powerpc/platforms/8xx/Makefile
+++ b/arch/powerpc/platforms/8xx/Makefile
@@ -1,7 +1,7 @@
#
# Makefile for the PowerPC 8xx linux kernel.
#
-obj-$(CONFIG_PPC_8xx) += m8xx_setup.o
+obj-y += m8xx_setup.o machine_check.o pic.o
obj-$(CONFIG_MPC885ADS) += mpc885ads_setup.o
obj-$(CONFIG_MPC86XADS) += mpc86xads_setup.o
obj-$(CONFIG_PPC_EP88XC) += ep88xc.o
diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c
index f81069f79a94..1917d69f84df 100644
--- a/arch/powerpc/platforms/8xx/m8xx_setup.c
+++ b/arch/powerpc/platforms/8xx/m8xx_setup.c
@@ -23,7 +23,7 @@
#include <asm/fs_pd.h>
#include <mm/mmu_decl.h>
-#include <sysdev/mpc8xx_pic.h>
+#include "pic.h"
#include "mpc8xx.h"
diff --git a/arch/powerpc/platforms/8xx/machine_check.c b/arch/powerpc/platforms/8xx/machine_check.c
new file mode 100644
index 000000000000..402016705a39
--- /dev/null
+++ b/arch/powerpc/platforms/8xx/machine_check.c
@@ -0,0 +1,37 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/printk.h>
+#include <linux/ptrace.h>
+
+#include <asm/reg.h>
+
+int machine_check_8xx(struct pt_regs *regs)
+{
+ unsigned long reason = regs->msr;
+
+ pr_err("Machine check in kernel mode.\n");
+ pr_err("Caused by (from SRR1=%lx): ", reason);
+ if (reason & 0x40000000)
+ pr_err("Fetch error at address %lx\n", regs->nip);
+ else
+ pr_err("Data access error at address %lx\n", regs->dar);
+
+#ifdef CONFIG_PCI
+ /* the qspan pci read routines can cause machine checks -- Cort
+ *
+ * yuck !!! that totally needs to go away ! There are better ways
+ * to deal with that than having a wart in the mcheck handler.
+ * -- BenH
+ */
+ bad_page_fault(regs, regs->dar, SIGBUS);
+ return 1;
+#else
+ return 0;
+#endif
+}
diff --git a/arch/powerpc/platforms/8xx/pic.c b/arch/powerpc/platforms/8xx/pic.c
new file mode 100644
index 000000000000..8d5a25d43ef3
--- /dev/null
+++ b/arch/powerpc/platforms/8xx/pic.c
@@ -0,0 +1,163 @@
+#include <linux/kernel.h>
+#include <linux/stddef.h>
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <linux/irq.h>
+#include <linux/dma-mapping.h>
+#include <asm/prom.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/8xx_immap.h>
+
+#include "pic.h"
+
+
+#define PIC_VEC_SPURRIOUS 15
+
+extern int cpm_get_irq(struct pt_regs *regs);
+
+static struct irq_domain *mpc8xx_pic_host;
+static unsigned long mpc8xx_cached_irq_mask;
+static sysconf8xx_t __iomem *siu_reg;
+
+static inline unsigned long mpc8xx_irqd_to_bit(struct irq_data *d)
+{
+ return 0x80000000 >> irqd_to_hwirq(d);
+}
+
+static void mpc8xx_unmask_irq(struct irq_data *d)
+{
+ mpc8xx_cached_irq_mask |= mpc8xx_irqd_to_bit(d);
+ out_be32(&siu_reg->sc_simask, mpc8xx_cached_irq_mask);
+}
+
+static void mpc8xx_mask_irq(struct irq_data *d)
+{
+ mpc8xx_cached_irq_mask &= ~mpc8xx_irqd_to_bit(d);
+ out_be32(&siu_reg->sc_simask, mpc8xx_cached_irq_mask);
+}
+
+static void mpc8xx_ack(struct irq_data *d)
+{
+ out_be32(&siu_reg->sc_sipend, mpc8xx_irqd_to_bit(d));
+}
+
+static void mpc8xx_end_irq(struct irq_data *d)
+{
+ mpc8xx_cached_irq_mask |= mpc8xx_irqd_to_bit(d);
+ out_be32(&siu_reg->sc_simask, mpc8xx_cached_irq_mask);
+}
+
+static int mpc8xx_set_irq_type(struct irq_data *d, unsigned int flow_type)
+{
+ /* only external IRQ senses are programmable */
+ if ((flow_type & IRQ_TYPE_EDGE_FALLING) && !(irqd_to_hwirq(d) & 1)) {
+ unsigned int siel = in_be32(&siu_reg->sc_siel);
+ siel |= mpc8xx_irqd_to_bit(d);
+ out_be32(&siu_reg->sc_siel, siel);
+ irq_set_handler_locked(d, handle_edge_irq);
+ }
+ return 0;
+}
+
+static struct irq_chip mpc8xx_pic = {
+ .name = "8XX SIU",
+ .irq_unmask = mpc8xx_unmask_irq,
+ .irq_mask = mpc8xx_mask_irq,
+ .irq_ack = mpc8xx_ack,
+ .irq_eoi = mpc8xx_end_irq,
+ .irq_set_type = mpc8xx_set_irq_type,
+};
+
+unsigned int mpc8xx_get_irq(void)
+{
+ int irq;
+
+ /* For MPC8xx, read the SIVEC register and shift the bits down
+ * to get the irq number.
+ */
+ irq = in_be32(&siu_reg->sc_sivec) >> 26;
+
+ if (irq == PIC_VEC_SPURRIOUS)
+ return 0;
+
+ return irq_linear_revmap(mpc8xx_pic_host, irq);
+
+}
+
+static int mpc8xx_pic_host_map(struct irq_domain *h, unsigned int virq,
+ irq_hw_number_t hw)
+{
+ pr_debug("mpc8xx_pic_host_map(%d, 0x%lx)\n", virq, hw);
+
+ /* Set default irq handle */
+ irq_set_chip_and_handler(virq, &mpc8xx_pic, handle_level_irq);
+ return 0;
+}
+
+
+static int mpc8xx_pic_host_xlate(struct irq_domain *h, struct device_node *ct,
+ const u32 *intspec, unsigned int intsize,
+ irq_hw_number_t *out_hwirq, unsigned int *out_flags)
+{
+ static unsigned char map_pic_senses[4] = {
+ IRQ_TYPE_EDGE_RISING,
+ IRQ_TYPE_LEVEL_LOW,
+ IRQ_TYPE_LEVEL_HIGH,
+ IRQ_TYPE_EDGE_FALLING,
+ };
+
+ if (intspec[0] > 0x1f)
+ return 0;
+
+ *out_hwirq = intspec[0];
+ if (intsize > 1 && intspec[1] < 4)
+ *out_flags = map_pic_senses[intspec[1]];
+ else
+ *out_flags = IRQ_TYPE_NONE;
+
+ return 0;
+}
+
+
+static const struct irq_domain_ops mpc8xx_pic_host_ops = {
+ .map = mpc8xx_pic_host_map,
+ .xlate = mpc8xx_pic_host_xlate,
+};
+
+int mpc8xx_pic_init(void)
+{
+ struct resource res;
+ struct device_node *np;
+ int ret;
+
+ np = of_find_compatible_node(NULL, NULL, "fsl,pq1-pic");
+ if (np == NULL)
+ np = of_find_node_by_type(NULL, "mpc8xx-pic");
+ if (np == NULL) {
+ printk(KERN_ERR "Could not find fsl,pq1-pic node\n");
+ return -ENOMEM;
+ }
+
+ ret = of_address_to_resource(np, 0, &res);
+ if (ret)
+ goto out;
+
+ siu_reg = ioremap(res.start, resource_size(&res));
+ if (siu_reg == NULL) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ mpc8xx_pic_host = irq_domain_add_linear(np, 64, &mpc8xx_pic_host_ops, NULL);
+ if (mpc8xx_pic_host == NULL) {
+ printk(KERN_ERR "MPC8xx PIC: failed to allocate irq host!\n");
+ ret = -ENOMEM;
+ goto out;
+ }
+ return 0;
+
+out:
+ of_node_put(np);
+ return ret;
+}
diff --git a/arch/powerpc/sysdev/mpc8xx_pic.h b/arch/powerpc/platforms/8xx/pic.h
index 9fe00eebdc8b..9fe00eebdc8b 100644
--- a/arch/powerpc/sysdev/mpc8xx_pic.h
+++ b/arch/powerpc/platforms/8xx/pic.h
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 684e886eaae4..13663efc1d31 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -32,7 +32,6 @@ config PPC_85xx
config PPC_8xx
bool "Freescale 8xx"
select FSL_SOC
- select 8xx
select PPC_LIB_RHEAP
select SYS_SUPPORTS_HUGETLBFS
@@ -149,10 +148,6 @@ config 6xx
depends on PPC32 && PPC_BOOK3S
select PPC_HAVE_PMU_SUPPORT
-# this is temp to handle compat with arch=ppc
-config 8xx
- bool
-
config E500
select FSL_EMB_PERFMON
select PPC_FSL_BOOK3E
@@ -271,44 +266,6 @@ config VSX
If in doubt, say Y here.
-config PPC_ICSWX
- bool "Support for PowerPC icswx coprocessor instruction"
- depends on PPC_BOOK3S_64
- default n
- ---help---
-
- This option enables kernel support for the PowerPC Initiate
- Coprocessor Store Word (icswx) coprocessor instruction on POWER7
- and POWER8 processors. POWER9 uses new copy/paste instructions
- to invoke the coprocessor.
-
- This option is only useful if you have a processor that supports
- the icswx coprocessor instruction. It does not have any effect
- on processors without the icswx coprocessor instruction.
-
- This option slightly increases kernel memory usage.
-
- If in doubt, say N here.
-
-config PPC_ICSWX_PID
- bool "icswx requires direct PID management"
- depends on PPC_ICSWX
- default y
- ---help---
- The PID register in server is used explicitly for ICSWX. In
- embedded systems PID management is done by the system.
-
-config PPC_ICSWX_USE_SIGILL
- bool "Should a bad CT cause a SIGILL?"
- depends on PPC_ICSWX
- default n
- ---help---
- Should a bad CT used for "non-record form ICSWX" cause an
- illegal instruction signal or should it be silent as
- architected.
-
- If in doubt, say N here.
-
config SPE_POSSIBLE
def_bool y
depends on E200 || (E500 && !PPC_E500MC)
@@ -344,12 +301,18 @@ config PPC_STD_MMU_64
config PPC_RADIX_MMU
bool "Radix MMU Support"
depends on PPC_BOOK3S_64
+ select ARCH_HAS_GIGANTIC_PAGE if (MEMORY_ISOLATION && COMPACTION) || CMA
default y
help
Enable support for the Power ISA 3.0 Radix style MMU. Currently this
is only implemented by IBM Power9 CPUs, if you don't have one of them
you can probably disable this.
+config ARCH_ENABLE_HUGEPAGE_MIGRATION
+ def_bool y
+ depends on PPC_BOOK3S_64 && HUGETLB_PAGE && MIGRATION
+
+
config PPC_MMU_NOHASH
def_bool y
depends on !PPC_STD_MMU
@@ -407,7 +370,7 @@ config NR_CPUS
config NOT_COHERENT_CACHE
bool
- depends on 4xx || 8xx || E200 || PPC_MPC512x || GAMECUBE_COMMON
+ depends on 4xx || PPC_8xx || E200 || PPC_MPC512x || GAMECUBE_COMMON
default n if PPC_47x
default y
diff --git a/arch/powerpc/platforms/Makefile b/arch/powerpc/platforms/Makefile
index 469ef170d218..d7a55ecfaee5 100644
--- a/arch/powerpc/platforms/Makefile
+++ b/arch/powerpc/platforms/Makefile
@@ -5,6 +5,7 @@ obj-$(CONFIG_FSL_ULI1575) += fsl_uli1575.o
obj-$(CONFIG_PPC_PMAC) += powermac/
obj-$(CONFIG_PPC_CHRP) += chrp/
+obj-$(CONFIG_4xx) += 4xx/
obj-$(CONFIG_40x) += 40x/
obj-$(CONFIG_44x) += 44x/
obj-$(CONFIG_PPC_MPC512x) += 512x/
diff --git a/arch/powerpc/platforms/amigaone/setup.c b/arch/powerpc/platforms/amigaone/setup.c
index 45cb9821173c..b9d466cc2b8a 100644
--- a/arch/powerpc/platforms/amigaone/setup.c
+++ b/arch/powerpc/platforms/amigaone/setup.c
@@ -40,7 +40,7 @@ static int __init amigaone_add_bridge(struct device_node *dev)
const int *bus_range;
struct pci_controller *hose;
- printk(KERN_INFO "Adding PCI host bridge %s\n", dev->full_name);
+ printk(KERN_INFO "Adding PCI host bridge %pOF\n", dev);
cfg_addr = of_get_address(dev, 0, NULL, NULL);
cfg_data = of_get_address(dev, 1, NULL, NULL);
@@ -49,8 +49,8 @@ static int __init amigaone_add_bridge(struct device_node *dev)
bus_range = of_get_property(dev, "bus-range", &len);
if ((bus_range == NULL) || (len < 2 * sizeof(int)))
- printk(KERN_WARNING "Can't get bus-range for %s, assume"
- " bus 0\n", dev->full_name);
+ printk(KERN_WARNING "Can't get bus-range for %pOF, assume"
+ " bus 0\n", dev);
hose = pcibios_alloc_controller(dev);
if (hose == NULL)
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c
index 8d3ae2cc52bf..6ea3f248b155 100644
--- a/arch/powerpc/platforms/cell/axon_msi.c
+++ b/arch/powerpc/platforms/cell/axon_msi.c
@@ -187,8 +187,8 @@ static struct axon_msic *find_msi_translator(struct pci_dev *dev)
irq_domain = irq_find_host(dn);
if (!irq_domain) {
- dev_dbg(&dev->dev, "axon_msi: no irq_domain found for node %s\n",
- dn->full_name);
+ dev_dbg(&dev->dev, "axon_msi: no irq_domain found for node %pOF\n",
+ dn);
goto out_error;
}
@@ -326,8 +326,8 @@ static void axon_msi_shutdown(struct platform_device *device)
struct axon_msic *msic = dev_get_drvdata(&device->dev);
u32 tmp;
- pr_devel("axon_msi: disabling %s\n",
- irq_domain_get_of_node(msic->irq_domain)->full_name);
+ pr_devel("axon_msi: disabling %pOF\n",
+ irq_domain_get_of_node(msic->irq_domain));
tmp = dcr_read(msic->dcr_host, MSIC_CTRL_REG);
tmp &= ~MSIC_CTRL_ENABLE & ~MSIC_CTRL_IRQ_ENABLE;
msic_dcr_write(msic, MSIC_CTRL_REG, tmp);
@@ -340,12 +340,12 @@ static int axon_msi_probe(struct platform_device *device)
unsigned int virq;
int dcr_base, dcr_len;
- pr_devel("axon_msi: setting up dn %s\n", dn->full_name);
+ pr_devel("axon_msi: setting up dn %pOF\n", dn);
msic = kzalloc(sizeof(struct axon_msic), GFP_KERNEL);
if (!msic) {
- printk(KERN_ERR "axon_msi: couldn't allocate msic for %s\n",
- dn->full_name);
+ printk(KERN_ERR "axon_msi: couldn't allocate msic for %pOF\n",
+ dn);
goto out;
}
@@ -354,30 +354,30 @@ static int axon_msi_probe(struct platform_device *device)
if (dcr_base == 0 || dcr_len == 0) {
printk(KERN_ERR
- "axon_msi: couldn't parse dcr properties on %s\n",
- dn->full_name);
+ "axon_msi: couldn't parse dcr properties on %pOF\n",
+ dn);
goto out_free_msic;
}
msic->dcr_host = dcr_map(dn, dcr_base, dcr_len);
if (!DCR_MAP_OK(msic->dcr_host)) {
- printk(KERN_ERR "axon_msi: dcr_map failed for %s\n",
- dn->full_name);
+ printk(KERN_ERR "axon_msi: dcr_map failed for %pOF\n",
+ dn);
goto out_free_msic;
}
msic->fifo_virt = dma_alloc_coherent(&device->dev, MSIC_FIFO_SIZE_BYTES,
&msic->fifo_phys, GFP_KERNEL);
if (!msic->fifo_virt) {
- printk(KERN_ERR "axon_msi: couldn't allocate fifo for %s\n",
- dn->full_name);
+ printk(KERN_ERR "axon_msi: couldn't allocate fifo for %pOF\n",
+ dn);
goto out_free_msic;
}
virq = irq_of_parse_and_map(dn, 0);
if (!virq) {
- printk(KERN_ERR "axon_msi: irq parse and map failed for %s\n",
- dn->full_name);
+ printk(KERN_ERR "axon_msi: irq parse and map failed for %pOF\n",
+ dn);
goto out_free_fifo;
}
memset(msic->fifo_virt, 0xff, MSIC_FIFO_SIZE_BYTES);
@@ -385,8 +385,8 @@ static int axon_msi_probe(struct platform_device *device)
/* We rely on being able to stash a virq in a u16, so limit irqs to < 65536 */
msic->irq_domain = irq_domain_add_nomap(dn, 65536, &msic_host_ops, msic);
if (!msic->irq_domain) {
- printk(KERN_ERR "axon_msi: couldn't allocate irq_domain for %s\n",
- dn->full_name);
+ printk(KERN_ERR "axon_msi: couldn't allocate irq_domain for %pOF\n",
+ dn);
goto out_free_fifo;
}
@@ -412,7 +412,7 @@ static int axon_msi_probe(struct platform_device *device)
axon_msi_debug_setup(dn, msic);
- printk(KERN_DEBUG "axon_msi: setup MSIC on %s\n", dn->full_name);
+ printk(KERN_DEBUG "axon_msi: setup MSIC on %pOF\n", dn);
return 0;
diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c
index 871d38479a25..6fc85e29dc08 100644
--- a/arch/powerpc/platforms/cell/interrupt.c
+++ b/arch/powerpc/platforms/cell/interrupt.c
@@ -303,8 +303,8 @@ static void __init init_one_iic(unsigned int hw_cpu, unsigned long addr,
iic->node = of_node_get(node);
out_be64(&iic->regs->prio, 0);
- printk(KERN_INFO "IIC for CPU %d target id 0x%x : %s\n",
- hw_cpu, iic->target_id, node->full_name);
+ printk(KERN_INFO "IIC for CPU %d target id 0x%x : %pOF\n",
+ hw_cpu, iic->target_id, node);
}
static int __init setup_iic(void)
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 71b995bbcae0..4b91ad08eefd 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -278,8 +278,8 @@ static int cell_iommu_find_ioc(int nid, unsigned long *base)
if (of_node_to_nid(np) != nid)
continue;
if (of_address_to_resource(np, 0, &r)) {
- printk(KERN_ERR "iommu: can't get address for %s\n",
- np->full_name);
+ printk(KERN_ERR "iommu: can't get address for %pOF\n",
+ np);
continue;
}
*base = r.start;
@@ -458,8 +458,8 @@ static inline u32 cell_iommu_get_ioid(struct device_node *np)
ioid = of_get_property(np, "ioid", NULL);
if (ioid == NULL) {
- printk(KERN_WARNING "iommu: missing ioid for %s using 0\n",
- np->full_name);
+ printk(KERN_WARNING "iommu: missing ioid for %pOF using 0\n",
+ np);
return 0;
}
@@ -559,8 +559,8 @@ static struct iommu_table *cell_get_iommu_table(struct device *dev)
*/
iommu = cell_iommu_for_node(dev_to_node(dev));
if (iommu == NULL || list_empty(&iommu->windows)) {
- dev_err(dev, "iommu: missing iommu for %s (node %d)\n",
- of_node_full_name(dev->of_node), dev_to_node(dev));
+ dev_err(dev, "iommu: missing iommu for %pOF (node %d)\n",
+ dev->of_node, dev_to_node(dev));
return NULL;
}
window = list_entry(iommu->windows.next, struct iommu_window, list);
@@ -644,32 +644,22 @@ static void dma_fixed_unmap_sg(struct device *dev, struct scatterlist *sg,
direction, attrs);
}
-static int dma_fixed_dma_supported(struct device *dev, u64 mask)
-{
- return mask == DMA_BIT_MASK(64);
-}
-
-static int dma_set_mask_and_switch(struct device *dev, u64 dma_mask);
+static int dma_suported_and_switch(struct device *dev, u64 dma_mask);
static const struct dma_map_ops dma_iommu_fixed_ops = {
.alloc = dma_fixed_alloc_coherent,
.free = dma_fixed_free_coherent,
.map_sg = dma_fixed_map_sg,
.unmap_sg = dma_fixed_unmap_sg,
- .dma_supported = dma_fixed_dma_supported,
- .set_dma_mask = dma_set_mask_and_switch,
+ .dma_supported = dma_suported_and_switch,
.map_page = dma_fixed_map_page,
.unmap_page = dma_fixed_unmap_page,
+ .mapping_error = dma_iommu_mapping_error,
};
-static void cell_dma_dev_setup_fixed(struct device *dev);
-
static void cell_dma_dev_setup(struct device *dev)
{
- /* Order is important here, these are not mutually exclusive */
- if (get_dma_ops(dev) == &dma_iommu_fixed_ops)
- cell_dma_dev_setup_fixed(dev);
- else if (get_pci_dma_ops() == &dma_iommu_ops)
+ if (get_pci_dma_ops() == &dma_iommu_ops)
set_iommu_table_base(dev, cell_get_iommu_table(dev));
else if (get_pci_dma_ops() == &dma_direct_ops)
set_dma_offset(dev, cell_dma_direct_offset);
@@ -730,12 +720,12 @@ static struct cbe_iommu * __init cell_iommu_alloc(struct device_node *np)
/* Get node ID */
nid = of_node_to_nid(np);
if (nid < 0) {
- printk(KERN_ERR "iommu: failed to get node for %s\n",
- np->full_name);
+ printk(KERN_ERR "iommu: failed to get node for %pOF\n",
+ np);
return NULL;
}
- pr_debug("iommu: setting up iommu for node %d (%s)\n",
- nid, np->full_name);
+ pr_debug("iommu: setting up iommu for node %d (%pOF)\n",
+ nid, np);
/* XXX todo: If we can have multiple windows on the same IOMMU, which
* isn't the case today, we probably want here to check whether the
@@ -746,8 +736,8 @@ static struct cbe_iommu * __init cell_iommu_alloc(struct device_node *np)
*/
if (cbe_nr_iommus >= NR_IOMMUS) {
- printk(KERN_ERR "iommu: too many IOMMUs detected ! (%s)\n",
- np->full_name);
+ printk(KERN_ERR "iommu: too many IOMMUs detected ! (%pOF)\n",
+ np);
return NULL;
}
@@ -956,38 +946,29 @@ out:
return dev_addr;
}
-static int dma_set_mask_and_switch(struct device *dev, u64 dma_mask)
+static int dma_suported_and_switch(struct device *dev, u64 dma_mask)
{
- if (!dev->dma_mask || !dma_supported(dev, dma_mask))
- return -EIO;
-
if (dma_mask == DMA_BIT_MASK(64) &&
- cell_iommu_get_fixed_address(dev) != OF_BAD_ADDR)
- {
+ cell_iommu_get_fixed_address(dev) != OF_BAD_ADDR) {
+ u64 addr = cell_iommu_get_fixed_address(dev) +
+ dma_iommu_fixed_base;
dev_dbg(dev, "iommu: 64-bit OK, using fixed ops\n");
+ dev_dbg(dev, "iommu: fixed addr = %llx\n", addr);
set_dma_ops(dev, &dma_iommu_fixed_ops);
- } else {
+ set_dma_offset(dev, addr);
+ return 1;
+ }
+
+ if (dma_iommu_dma_supported(dev, dma_mask)) {
dev_dbg(dev, "iommu: not 64-bit, using default ops\n");
set_dma_ops(dev, get_pci_dma_ops());
+ cell_dma_dev_setup(dev);
+ return 1;
}
- cell_dma_dev_setup(dev);
-
- *dev->dma_mask = dma_mask;
-
return 0;
}
-static void cell_dma_dev_setup_fixed(struct device *dev)
-{
- u64 addr;
-
- addr = cell_iommu_get_fixed_address(dev) + dma_iommu_fixed_base;
- set_dma_offset(dev, addr);
-
- dev_dbg(dev, "iommu: fixed addr = %llx\n", addr);
-}
-
static void insert_16M_pte(unsigned long addr, unsigned long *ptab,
unsigned long base_pte)
{
@@ -1139,7 +1120,7 @@ static int __init cell_iommu_fixed_mapping_init(void)
cell_iommu_setup_window(iommu, np, dbase, dsize, 0);
}
- dma_iommu_ops.set_dma_mask = dma_set_mask_and_switch;
+ dma_iommu_ops.dma_supported = dma_suported_and_switch;
set_pci_dma_ops(&dma_iommu_ops);
return 0;
diff --git a/arch/powerpc/platforms/cell/ras.c b/arch/powerpc/platforms/cell/ras.c
index 460ab392f0e7..2f704afe9af3 100644
--- a/arch/powerpc/platforms/cell/ras.c
+++ b/arch/powerpc/platforms/cell/ras.c
@@ -196,8 +196,8 @@ static int __init cbe_ptcal_enable(void)
for_each_node_by_type(np, "cpu") {
const u32 *nid = of_get_property(np, "node-id", NULL);
if (!nid) {
- printk(KERN_ERR "%s: node %s is missing node-id?\n",
- __func__, np->full_name);
+ printk(KERN_ERR "%s: node %pOF is missing node-id?\n",
+ __func__, np);
continue;
}
cbe_ptcal_enable_on_node(*nid, order);
diff --git a/arch/powerpc/platforms/cell/smp.c b/arch/powerpc/platforms/cell/smp.c
index 895560f4be69..f84d52a2db40 100644
--- a/arch/powerpc/platforms/cell/smp.c
+++ b/arch/powerpc/platforms/cell/smp.c
@@ -115,7 +115,8 @@ static void smp_cell_setup_cpu(int cpu)
static int smp_cell_kick_cpu(int nr)
{
- BUG_ON(nr < 0 || nr >= NR_CPUS);
+ if (nr < 0 || nr >= nr_cpu_ids)
+ return -EINVAL;
if (!smp_startup_cpu(nr))
return -ENOENT;
diff --git a/arch/powerpc/platforms/cell/spider-pci.c b/arch/powerpc/platforms/cell/spider-pci.c
index f1f7878893f3..d1e61e273e64 100644
--- a/arch/powerpc/platforms/cell/spider-pci.c
+++ b/arch/powerpc/platforms/cell/spider-pci.c
@@ -130,8 +130,8 @@ int __init spiderpci_iowa_init(struct iowa_bus *bus, void *data)
struct resource r;
unsigned long offset = (unsigned long)data;
- pr_debug("SPIDERPCI-IOWA:Bus initialize for spider(%s)\n",
- np->full_name);
+ pr_debug("SPIDERPCI-IOWA:Bus initialize for spider(%pOF)\n",
+ np);
priv = kzalloc(sizeof(struct spiderpci_iowa_private), GFP_KERNEL);
if (!priv) {
diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c
index ff924af00e78..aa44bfc46467 100644
--- a/arch/powerpc/platforms/cell/spider-pic.c
+++ b/arch/powerpc/platforms/cell/spider-pic.c
@@ -323,8 +323,8 @@ static void __init spider_init_one(struct device_node *of_node, int chip,
irq_set_handler_data(virq, pic);
irq_set_chained_handler(virq, spider_irq_cascade);
- printk(KERN_INFO "spider_pic: node %d, addr: 0x%lx %s\n",
- pic->node_id, addr, of_node->full_name);
+ printk(KERN_INFO "spider_pic: node %d, addr: 0x%lx %pOF\n",
+ pic->node_id, addr, of_node);
/* Enable the interrupt detection enable bit. Do this last! */
out_be32(pic->regs + TIR_DEN, in_be32(pic->regs + TIR_DEN) | 0x1);
diff --git a/arch/powerpc/platforms/cell/spu_manage.c b/arch/powerpc/platforms/cell/spu_manage.c
index 672d310dcf14..f636ee22b203 100644
--- a/arch/powerpc/platforms/cell/spu_manage.c
+++ b/arch/powerpc/platforms/cell/spu_manage.c
@@ -191,8 +191,8 @@ static int __init spu_map_interrupts(struct spu *spu, struct device_node *np)
goto err;
}
ret = -EINVAL;
- pr_debug(" irq %d no 0x%x on %s\n", i, oirq.args[0],
- oirq.np->full_name);
+ pr_debug(" irq %d no 0x%x on %pOF\n", i, oirq.args[0],
+ oirq.np);
spu->irqs[i] = irq_create_of_mapping(&oirq);
if (!spu->irqs[i]) {
pr_debug("spu_new: failed to map it !\n");
@@ -243,32 +243,32 @@ static int __init spu_map_device(struct spu *spu)
ret = spu_map_resource(spu, 0, (void __iomem**)&spu->local_store,
&spu->local_store_phys);
if (ret) {
- pr_debug("spu_new: failed to map %s resource 0\n",
- np->full_name);
+ pr_debug("spu_new: failed to map %pOF resource 0\n",
+ np);
goto out;
}
ret = spu_map_resource(spu, 1, (void __iomem**)&spu->problem,
&spu->problem_phys);
if (ret) {
- pr_debug("spu_new: failed to map %s resource 1\n",
- np->full_name);
+ pr_debug("spu_new: failed to map %pOF resource 1\n",
+ np);
goto out_unmap;
}
ret = spu_map_resource(spu, 2, (void __iomem**)&spu->priv2, NULL);
if (ret) {
- pr_debug("spu_new: failed to map %s resource 2\n",
- np->full_name);
+ pr_debug("spu_new: failed to map %pOF resource 2\n",
+ np);
goto out_unmap;
}
if (!firmware_has_feature(FW_FEATURE_LPAR))
ret = spu_map_resource(spu, 3,
(void __iomem**)&spu->priv1, NULL);
if (ret) {
- pr_debug("spu_new: failed to map %s resource 3\n",
- np->full_name);
+ pr_debug("spu_new: failed to map %pOF resource 3\n",
+ np);
goto out_unmap;
}
- pr_debug("spu_new: %s maps:\n", np->full_name);
+ pr_debug("spu_new: %pOF maps:\n", np);
pr_debug(" local store : 0x%016lx -> 0x%p\n",
spu->local_store_phys, spu->local_store);
pr_debug(" problem state : 0x%016lx -> 0x%p\n",
@@ -316,8 +316,8 @@ static int __init of_create_spu(struct spu *spu, void *data)
spu->node = of_node_to_nid(spe);
if (spu->node >= MAX_NUMNODES) {
- printk(KERN_WARNING "SPE %s on node %d ignored,"
- " node number too big\n", spe->full_name, spu->node);
+ printk(KERN_WARNING "SPE %pOF on node %d ignored,"
+ " node number too big\n", spe, spu->node);
printk(KERN_WARNING "Check if CONFIG_NUMA is enabled.\n");
ret = -ENODEV;
goto out;
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index ae2f740a82f1..5ffcdeb1eb17 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -1749,7 +1749,7 @@ out:
static int spufs_mfc_fsync(struct file *file, loff_t start, loff_t end, int datasync)
{
struct inode *inode = file_inode(file);
- int err = filemap_write_and_wait_range(inode->i_mapping, start, end);
+ int err = file_write_and_wait_range(file, start, end);
if (!err) {
inode_lock(inode);
err = spufs_mfc_flush(file, NULL);
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index d8af9bc0489f..9558d725a99b 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -605,6 +605,24 @@ static const match_table_t spufs_tokens = {
{ Opt_err, NULL },
};
+static int spufs_show_options(struct seq_file *m, struct dentry *root)
+{
+ struct spufs_sb_info *sbi = spufs_get_sb_info(root->d_sb);
+ struct inode *inode = root->d_inode;
+
+ if (!uid_eq(inode->i_uid, GLOBAL_ROOT_UID))
+ seq_printf(m, ",uid=%u",
+ from_kuid_munged(&init_user_ns, inode->i_uid));
+ if (!gid_eq(inode->i_gid, GLOBAL_ROOT_GID))
+ seq_printf(m, ",gid=%u",
+ from_kgid_munged(&init_user_ns, inode->i_gid));
+ if ((inode->i_mode & S_IALLUGO) != 0775)
+ seq_printf(m, ",mode=%o", inode->i_mode);
+ if (sbi->debug)
+ seq_puts(m, ",debug");
+ return 0;
+}
+
static int
spufs_parse_options(struct super_block *sb, char *options, struct inode *root)
{
@@ -724,11 +742,9 @@ spufs_fill_super(struct super_block *sb, void *data, int silent)
.destroy_inode = spufs_destroy_inode,
.statfs = simple_statfs,
.evict_inode = spufs_evict_inode,
- .show_options = generic_show_options,
+ .show_options = spufs_show_options,
};
- save_mount_options(sb, data);
-
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (!info)
return -ENOMEM;
diff --git a/arch/powerpc/platforms/chrp/pci.c b/arch/powerpc/platforms/chrp/pci.c
index 1b87e198faa7..27264794f5c0 100644
--- a/arch/powerpc/platforms/chrp/pci.c
+++ b/arch/powerpc/platforms/chrp/pci.c
@@ -235,14 +235,14 @@ chrp_find_bridges(void)
++index;
/* The GG2 bridge on the LongTrail doesn't have an address */
if (of_address_to_resource(dev, 0, &r) && !is_longtrail) {
- printk(KERN_WARNING "Can't use %s: no address\n",
- dev->full_name);
+ printk(KERN_WARNING "Can't use %pOF: no address\n",
+ dev);
continue;
}
bus_range = of_get_property(dev, "bus-range", &len);
if (bus_range == NULL || len < 2 * sizeof(int)) {
- printk(KERN_WARNING "Can't get bus-range for %s\n",
- dev->full_name);
+ printk(KERN_WARNING "Can't get bus-range for %pOF\n",
+ dev);
continue;
}
if (bus_range[1] == bus_range[0])
@@ -250,15 +250,15 @@ chrp_find_bridges(void)
else
printk(KERN_INFO "PCI buses %d..%d",
bus_range[0], bus_range[1]);
- printk(" controlled by %s", dev->full_name);
+ printk(" controlled by %pOF", dev);
if (!is_longtrail)
printk(" at %llx", (unsigned long long)r.start);
printk("\n");
hose = pcibios_alloc_controller(dev);
if (!hose) {
- printk("Can't allocate PCI controller structure for %s\n",
- dev->full_name);
+ printk("Can't allocate PCI controller structure for %pOF\n",
+ dev);
continue;
}
hose->first_busno = hose->self_busno = bus_range[0];
@@ -297,8 +297,8 @@ chrp_find_bridges(void)
}
}
} else {
- printk("No methods for %s (model %s), using RTAS\n",
- dev->full_name, model);
+ printk("No methods for %pOF (model %s), using RTAS\n",
+ dev, model);
hose->ops = &rtas_pci_ops;
}
diff --git a/arch/powerpc/platforms/chrp/pegasos_eth.c b/arch/powerpc/platforms/chrp/pegasos_eth.c
index 2b4dc6abde6c..19760712b39d 100644
--- a/arch/powerpc/platforms/chrp/pegasos_eth.c
+++ b/arch/powerpc/platforms/chrp/pegasos_eth.c
@@ -63,7 +63,7 @@ static struct platform_device mv643xx_eth_mvmdio_device = {
.name = "orion-mdio",
.id = -1,
.num_resources = ARRAY_SIZE(mv643xx_eth_mvmdio_resources),
- .resource = mv643xx_eth_shared_resources,
+ .resource = mv643xx_eth_mvmdio_resources,
};
static struct resource mv643xx_eth_port1_resources[] = {
diff --git a/arch/powerpc/platforms/embedded6xx/linkstation.c b/arch/powerpc/platforms/embedded6xx/linkstation.c
index f29cf29b11f8..f514d5d28cd4 100644
--- a/arch/powerpc/platforms/embedded6xx/linkstation.c
+++ b/arch/powerpc/platforms/embedded6xx/linkstation.c
@@ -41,12 +41,12 @@ static int __init linkstation_add_bridge(struct device_node *dev)
struct pci_controller *hose;
const int *bus_range;
- printk("Adding PCI host bridge %s\n", dev->full_name);
+ printk("Adding PCI host bridge %pOF\n", dev);
bus_range = of_get_property(dev, "bus-range", &len);
if (bus_range == NULL || len < 2 * sizeof(int))
- printk(KERN_WARNING "Can't get bus-range for %s, assume"
- " bus 0\n", dev->full_name);
+ printk(KERN_WARNING "Can't get bus-range for %pOF, assume"
+ " bus 0\n", dev);
hose = pcibios_alloc_controller(dev);
if (hose == NULL)
diff --git a/arch/powerpc/platforms/embedded6xx/mvme5100.c b/arch/powerpc/platforms/embedded6xx/mvme5100.c
index 8e3590941960..273dfa3f0252 100644
--- a/arch/powerpc/platforms/embedded6xx/mvme5100.c
+++ b/arch/powerpc/platforms/embedded6xx/mvme5100.c
@@ -115,7 +115,7 @@ static int __init mvme5100_add_bridge(struct device_node *dev)
struct pci_controller *hose;
unsigned short devid;
- pr_info("Adding PCI host bridge %s\n", dev->full_name);
+ pr_info("Adding PCI host bridge %pOF\n", dev);
bus_range = of_get_property(dev, "bus-range", &len);
diff --git a/arch/powerpc/platforms/embedded6xx/storcenter.c b/arch/powerpc/platforms/embedded6xx/storcenter.c
index 471a50bcd074..ed1914dd34bb 100644
--- a/arch/powerpc/platforms/embedded6xx/storcenter.c
+++ b/arch/powerpc/platforms/embedded6xx/storcenter.c
@@ -44,7 +44,7 @@ static int __init storcenter_add_bridge(struct device_node *dev)
struct pci_controller *hose;
const int *bus_range;
- printk("Adding PCI host bridge %s\n", dev->full_name);
+ printk("Adding PCI host bridge %pOF\n", dev);
hose = pcibios_alloc_controller(dev);
if (hose == NULL)
diff --git a/arch/powerpc/platforms/maple/pci.c b/arch/powerpc/platforms/maple/pci.c
index 69794d9389c2..e3821379e86f 100644
--- a/arch/powerpc/platforms/maple/pci.c
+++ b/arch/powerpc/platforms/maple/pci.c
@@ -73,8 +73,8 @@ static void __init fixup_bus_range(struct device_node *bridge)
/* Lookup the "bus-range" property for the hose */
prop = of_find_property(bridge, "bus-range", &len);
if (prop == NULL || prop->value == NULL || len < 2 * sizeof(int)) {
- printk(KERN_WARNING "Can't get bus-range for %s\n",
- bridge->full_name);
+ printk(KERN_WARNING "Can't get bus-range for %pOF\n",
+ bridge);
return;
}
bus_range = prop->value;
@@ -498,12 +498,12 @@ static int __init maple_add_bridge(struct device_node *dev)
const int *bus_range;
int primary = 1;
- DBG("Adding PCI host bridge %s\n", dev->full_name);
+ DBG("Adding PCI host bridge %pOF\n", dev);
bus_range = of_get_property(dev, "bus-range", &len);
if (bus_range == NULL || len < 2 * sizeof(int)) {
- printk(KERN_WARNING "Can't get bus-range for %s, assume bus 0\n",
- dev->full_name);
+ printk(KERN_WARNING "Can't get bus-range for %pOF, assume bus 0\n",
+ dev);
}
hose = pcibios_alloc_controller(dev);
diff --git a/arch/powerpc/platforms/pasemi/pci.c b/arch/powerpc/platforms/pasemi/pci.c
index 10c4e8fc6ea9..5ff6108f19e9 100644
--- a/arch/powerpc/platforms/pasemi/pci.c
+++ b/arch/powerpc/platforms/pasemi/pci.c
@@ -193,7 +193,7 @@ static int __init pas_add_bridge(struct device_node *dev)
{
struct pci_controller *hose;
- pr_debug("Adding PCI host bridge %s\n", dev->full_name);
+ pr_debug("Adding PCI host bridge %pOF\n", dev);
hose = pcibios_alloc_controller(dev);
if (!hose)
diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c
index 1e02328c3f2d..9e3f39d36e88 100644
--- a/arch/powerpc/platforms/powermac/feature.c
+++ b/arch/powerpc/platforms/powermac/feature.c
@@ -2658,25 +2658,25 @@ static void __init probe_one_macio(const char *name, const char *compat, int typ
if (i >= MAX_MACIO_CHIPS) {
printk(KERN_ERR "pmac_feature: Please increase MAX_MACIO_CHIPS !\n");
- printk(KERN_ERR "pmac_feature: %s skipped\n", node->full_name);
+ printk(KERN_ERR "pmac_feature: %pOF skipped\n", node);
return;
}
addrp = of_get_pci_address(node, 0, &size, NULL);
if (addrp == NULL) {
- printk(KERN_ERR "pmac_feature: %s: can't find base !\n",
- node->full_name);
+ printk(KERN_ERR "pmac_feature: %pOF: can't find base !\n",
+ node);
return;
}
addr = of_translate_address(node, addrp);
if (addr == 0) {
- printk(KERN_ERR "pmac_feature: %s, can't translate base !\n",
- node->full_name);
+ printk(KERN_ERR "pmac_feature: %pOF, can't translate base !\n",
+ node);
return;
}
base = ioremap(addr, (unsigned long)size);
if (!base) {
- printk(KERN_ERR "pmac_feature: %s, can't map mac-io chip !\n",
- node->full_name);
+ printk(KERN_ERR "pmac_feature: %pOF, can't map mac-io chip !\n",
+ node);
return;
}
if (type == macio_keylargo || type == macio_keylargo2) {
diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c
index f627c9fd7b48..70183eb3d5c8 100644
--- a/arch/powerpc/platforms/powermac/low_i2c.c
+++ b/arch/powerpc/platforms/powermac/low_i2c.c
@@ -494,8 +494,8 @@ static struct pmac_i2c_host_kw *__init kw_i2c_host_init(struct device_node *np)
host = kzalloc(sizeof(struct pmac_i2c_host_kw), GFP_KERNEL);
if (host == NULL) {
- printk(KERN_ERR "low_i2c: Can't allocate host for %s\n",
- np->full_name);
+ printk(KERN_ERR "low_i2c: Can't allocate host for %pOF\n",
+ np);
return NULL;
}
@@ -505,8 +505,8 @@ static struct pmac_i2c_host_kw *__init kw_i2c_host_init(struct device_node *np)
*/
addrp = of_get_property(np, "AAPL,address", NULL);
if (addrp == NULL) {
- printk(KERN_ERR "low_i2c: Can't find address for %s\n",
- np->full_name);
+ printk(KERN_ERR "low_i2c: Can't find address for %pOF\n",
+ np);
kfree(host);
return NULL;
}
@@ -538,13 +538,13 @@ static struct pmac_i2c_host_kw *__init kw_i2c_host_init(struct device_node *np)
host->irq = irq_of_parse_and_map(np, 0);
if (!host->irq)
printk(KERN_WARNING
- "low_i2c: Failed to map interrupt for %s\n",
- np->full_name);
+ "low_i2c: Failed to map interrupt for %pOF\n",
+ np);
host->base = ioremap((*addrp), 0x1000);
if (host->base == NULL) {
- printk(KERN_ERR "low_i2c: Can't map registers for %s\n",
- np->full_name);
+ printk(KERN_ERR "low_i2c: Can't map registers for %pOF\n",
+ np);
kfree(host);
return NULL;
}
@@ -560,8 +560,8 @@ static struct pmac_i2c_host_kw *__init kw_i2c_host_init(struct device_node *np)
"keywest i2c", host))
host->irq = 0;
- printk(KERN_INFO "KeyWest i2c @0x%08x irq %d %s\n",
- *addrp, host->irq, np->full_name);
+ printk(KERN_INFO "KeyWest i2c @0x%08x irq %d %pOF\n",
+ *addrp, host->irq, np);
return host;
}
@@ -798,7 +798,7 @@ static void __init pmu_i2c_probe(void)
if (busnode == NULL)
return;
- printk(KERN_INFO "PMU i2c %s\n", busnode->full_name);
+ printk(KERN_INFO "PMU i2c %pOF\n", busnode);
/*
* We add bus 1 and 2 only for now, bus 0 is "special"
@@ -913,7 +913,7 @@ static void __init smu_i2c_probe(void)
if (controller == NULL)
return;
- printk(KERN_INFO "SMU i2c %s\n", controller->full_name);
+ printk(KERN_INFO "SMU i2c %pOF\n", controller);
/* Look for childs, note that they might not be of the right
* type as older device trees mix i2c busses and other things
@@ -945,8 +945,8 @@ static void __init smu_i2c_probe(void)
bus->flags = 0;
list_add(&bus->link, &pmac_i2c_busses);
- printk(KERN_INFO " channel %x bus %s\n",
- bus->channel, busnode->full_name);
+ printk(KERN_INFO " channel %x bus %pOF\n",
+ bus->channel, busnode);
}
}
@@ -1129,7 +1129,7 @@ int pmac_i2c_setmode(struct pmac_i2c_bus *bus, int mode)
*/
if (mode < pmac_i2c_mode_dumb || mode > pmac_i2c_mode_combined) {
printk(KERN_ERR "low_i2c: Invalid mode %d requested on"
- " bus %s !\n", mode, bus->busnode->full_name);
+ " bus %pOF !\n", mode, bus->busnode);
return -EINVAL;
}
bus->mode = mode;
@@ -1146,8 +1146,8 @@ int pmac_i2c_xfer(struct pmac_i2c_bus *bus, u8 addrdir, int subsize,
WARN_ON(!bus->opened);
DBG("xfer() chan=%d, addrdir=0x%x, mode=%d, subsize=%d, subaddr=0x%x,"
- " %d bytes, bus %s\n", bus->channel, addrdir, bus->mode, subsize,
- subaddr, len, bus->busnode->full_name);
+ " %d bytes, bus %pOF\n", bus->channel, addrdir, bus->mode, subsize,
+ subaddr, len, bus->busnode);
rc = bus->xfer(bus, addrdir, subsize, subaddr, data, len);
@@ -1241,13 +1241,13 @@ static void* pmac_i2c_do_begin(struct pmf_function *func, struct pmf_args *args)
bus = pmac_i2c_find_bus(func->node);
if (bus == NULL) {
- printk(KERN_ERR "low_i2c: Can't find bus for %s (pfunc)\n",
- func->node->full_name);
+ printk(KERN_ERR "low_i2c: Can't find bus for %pOF (pfunc)\n",
+ func->node);
return NULL;
}
if (pmac_i2c_open(bus, 0)) {
- printk(KERN_ERR "low_i2c: Can't open i2c bus for %s (pfunc)\n",
- func->node->full_name);
+ printk(KERN_ERR "low_i2c: Can't open i2c bus for %pOF (pfunc)\n",
+ func->node);
return NULL;
}
@@ -1417,7 +1417,7 @@ static struct pmf_handlers pmac_i2c_pfunc_handlers = {
static void __init pmac_i2c_dev_create(struct device_node *np, int quirks)
{
- DBG("dev_create(%s)\n", np->full_name);
+ DBG("dev_create(%pOF)\n", np);
pmf_register_driver(np, &pmac_i2c_pfunc_handlers,
(void *)(long)quirks);
@@ -1425,20 +1425,20 @@ static void __init pmac_i2c_dev_create(struct device_node *np, int quirks)
static void __init pmac_i2c_dev_init(struct device_node *np, int quirks)
{
- DBG("dev_create(%s)\n", np->full_name);
+ DBG("dev_create(%pOF)\n", np);
pmf_do_functions(np, NULL, 0, PMF_FLAGS_ON_INIT, NULL);
}
static void pmac_i2c_dev_suspend(struct device_node *np, int quirks)
{
- DBG("dev_suspend(%s)\n", np->full_name);
+ DBG("dev_suspend(%pOF)\n", np);
pmf_do_functions(np, NULL, 0, PMF_FLAGS_ON_SLEEP, NULL);
}
static void pmac_i2c_dev_resume(struct device_node *np, int quirks)
{
- DBG("dev_resume(%s)\n", np->full_name);
+ DBG("dev_resume(%pOF)\n", np);
pmf_do_functions(np, NULL, 0, PMF_FLAGS_ON_WAKE, NULL);
}
diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
index 6e06c3be2e9a..0b8174a79993 100644
--- a/arch/powerpc/platforms/powermac/pci.c
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -783,7 +783,7 @@ static int __init pmac_add_bridge(struct device_node *dev)
const int *bus_range;
int primary = 1, has_address = 0;
- DBG("Adding PCI host bridge %s\n", dev->full_name);
+ DBG("Adding PCI host bridge %pOF\n", dev);
/* Fetch host bridge registers address */
has_address = (of_address_to_resource(dev, 0, &rsrc) == 0);
@@ -791,8 +791,8 @@ static int __init pmac_add_bridge(struct device_node *dev)
/* Get bus range if any */
bus_range = of_get_property(dev, "bus-range", &len);
if (bus_range == NULL || len < 2 * sizeof(int)) {
- printk(KERN_WARNING "Can't get bus-range for %s, assume"
- " bus 0\n", dev->full_name);
+ printk(KERN_WARNING "Can't get bus-range for %pOF, assume"
+ " bus 0\n", dev);
}
hose = pcibios_alloc_controller(dev);
diff --git a/arch/powerpc/platforms/powermac/pfunc_base.c b/arch/powerpc/platforms/powermac/pfunc_base.c
index 459138ed4571..860159d46ab8 100644
--- a/arch/powerpc/platforms/powermac/pfunc_base.c
+++ b/arch/powerpc/platforms/powermac/pfunc_base.c
@@ -54,8 +54,8 @@ static int macio_do_gpio_write(PMF_STD_ARGS, u8 value, u8 mask)
raw_spin_lock_irqsave(&feature_lock, flags);
tmp = readb(addr);
tmp = (tmp & ~mask) | (value & mask);
- DBG("Do write 0x%02x to GPIO %s (%p)\n",
- tmp, func->node->full_name, addr);
+ DBG("Do write 0x%02x to GPIO %pOF (%p)\n",
+ tmp, func->node, addr);
writeb(tmp, addr);
raw_spin_unlock_irqrestore(&feature_lock, flags);
@@ -107,8 +107,8 @@ static void macio_gpio_init_one(struct macio_chip *macio)
if (gparent == NULL)
return;
- DBG("Installing GPIO functions for macio %s\n",
- macio->of_node->full_name);
+ DBG("Installing GPIO functions for macio %pOF\n",
+ macio->of_node);
/*
* Ok, got one, we dont need anything special to track them down, so
@@ -129,8 +129,8 @@ static void macio_gpio_init_one(struct macio_chip *macio)
pmf_register_driver(gp, &macio_gpio_handlers, (void *)offset);
}
- DBG("Calling initial GPIO functions for macio %s\n",
- macio->of_node->full_name);
+ DBG("Calling initial GPIO functions for macio %pOF\n",
+ macio->of_node);
/* And now we run all the init ones */
for (gp = NULL; (gp = of_get_next_child(gparent, gp)) != NULL;)
@@ -267,8 +267,8 @@ static struct pmf_handlers macio_mmio_handlers = {
static void macio_mmio_init_one(struct macio_chip *macio)
{
- DBG("Installing MMIO functions for macio %s\n",
- macio->of_node->full_name);
+ DBG("Installing MMIO functions for macio %pOF\n",
+ macio->of_node);
pmf_register_driver(macio->of_node, &macio_mmio_handlers, macio);
}
@@ -298,8 +298,8 @@ static void uninorth_install_pfunc(void)
{
struct device_node *np;
- DBG("Installing functions for UniN %s\n",
- uninorth_node->full_name);
+ DBG("Installing functions for UniN %pOF\n",
+ uninorth_node);
/*
* Install handlers for the bridge itself
@@ -317,8 +317,8 @@ static void uninorth_install_pfunc(void)
break;
}
if (unin_hwclock) {
- DBG("Installing functions for UniN clock %s\n",
- unin_hwclock->full_name);
+ DBG("Installing functions for UniN clock %pOF\n",
+ unin_hwclock);
pmf_register_driver(unin_hwclock, &unin_mmio_handlers, NULL);
pmf_do_functions(unin_hwclock, NULL, 0, PMF_FLAGS_ON_INIT,
NULL);
diff --git a/arch/powerpc/platforms/powermac/pfunc_core.c b/arch/powerpc/platforms/powermac/pfunc_core.c
index 695e8c4d4224..df3c93bef228 100644
--- a/arch/powerpc/platforms/powermac/pfunc_core.c
+++ b/arch/powerpc/platforms/powermac/pfunc_core.c
@@ -708,7 +708,7 @@ int pmf_register_driver(struct device_node *np,
if (handlers == NULL)
return -EINVAL;
- DBG("pmf: registering driver for node %s\n", np->full_name);
+ DBG("pmf: registering driver for node %pOF\n", np);
spin_lock_irqsave(&pmf_lock, flags);
dev = pmf_find_device(np);
@@ -781,7 +781,7 @@ void pmf_unregister_driver(struct device_node *np)
struct pmf_device *dev;
unsigned long flags;
- DBG("pmf: unregistering driver for node %s\n", np->full_name);
+ DBG("pmf: unregistering driver for node %pOF\n", np);
spin_lock_irqsave(&pmf_lock, flags);
dev = pmf_find_device(np);
@@ -940,7 +940,7 @@ int pmf_call_one(struct pmf_function *func, struct pmf_args *args)
void *instdata = NULL;
int rc = 0;
- DBG(" ** pmf_call_one(%s/%s) **\n", dev->node->full_name, func->name);
+ DBG(" ** pmf_call_one(%pOF/%s) **\n", dev->node, func->name);
if (dev->handlers->begin)
instdata = dev->handlers->begin(func, args);
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index f5f9ad7c3398..5e0719b27294 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -364,8 +364,8 @@ static void __init pmac_pic_probe_oldstyle(void)
(addr + 0x10);
of_node_put(master);
- printk(KERN_INFO "irq: Found primary Apple PIC %s for %d irqs\n",
- master->full_name, max_real_irqs);
+ printk(KERN_INFO "irq: Found primary Apple PIC %pOF for %d irqs\n",
+ master, max_real_irqs);
/* Map interrupts of cascaded controller */
if (slave && !of_address_to_resource(slave, 0, &r)) {
@@ -378,8 +378,8 @@ static void __init pmac_pic_probe_oldstyle(void)
(addr + 0x10);
pmac_irq_cascade = irq_of_parse_and_map(slave, 0);
- printk(KERN_INFO "irq: Found slave Apple PIC %s for %d irqs"
- " cascade: %d\n", slave->full_name,
+ printk(KERN_INFO "irq: Found slave Apple PIC %pOF for %d irqs"
+ " cascade: %d\n", slave,
max_irqs - max_real_irqs, pmac_irq_cascade);
}
of_node_put(slave);
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index 6b4e9d181126..ab668cb72263 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -556,7 +556,7 @@ static int __init check_pmac_serial_console(void)
pr_debug(" can't find stdout package %s !\n", name);
return -ENODEV;
}
- pr_debug("stdout is %s\n", prom_stdout->full_name);
+ pr_debug("stdout is %pOF\n", prom_stdout);
name = of_get_property(prom_stdout, "name", NULL);
if (!name) {
diff --git a/arch/powerpc/platforms/powernv/Kconfig b/arch/powerpc/platforms/powernv/Kconfig
index 6a6f4ef46b9e..340cbe263b33 100644
--- a/arch/powerpc/platforms/powernv/Kconfig
+++ b/arch/powerpc/platforms/powernv/Kconfig
@@ -30,3 +30,25 @@ config OPAL_PRD
help
This enables the opal-prd driver, a facility to run processor
recovery diagnostics on OpenPower machines
+
+config PPC_MEMTRACE
+ bool "Enable removal of RAM from kernel mappings for tracing"
+ depends on PPC_POWERNV && MEMORY_HOTREMOVE
+ default n
+ help
+ Enabling this option allows for the removal of memory (RAM)
+ from the kernel mappings to be used for hardware tracing.
+
+config PPC_VAS
+ bool "IBM Virtual Accelerator Switchboard (VAS)"
+ depends on PPC_POWERNV && PPC_64K_PAGES
+ default y
+ help
+ This enables support for IBM Virtual Accelerator Switchboard (VAS).
+
+ VAS allows accelerators in co-processors like NX-GZIP and NX-842
+ to be accessible to kernel subsystems and user processes.
+
+ VAS adapters are found in POWER9 based systems.
+
+ If unsure, say N.
diff --git a/arch/powerpc/platforms/powernv/Makefile b/arch/powerpc/platforms/powernv/Makefile
index b5d98cb3f482..37d60f7dd86d 100644
--- a/arch/powerpc/platforms/powernv/Makefile
+++ b/arch/powerpc/platforms/powernv/Makefile
@@ -2,7 +2,7 @@ obj-y += setup.o opal-wrappers.o opal.o opal-async.o idle.o
obj-y += opal-rtc.o opal-nvram.o opal-lpc.o opal-flash.o
obj-y += rng.o opal-elog.o opal-dump.o opal-sysparam.o opal-sensor.o
obj-y += opal-msglog.o opal-hmi.o opal-power.o opal-irqchip.o
-obj-y += opal-kmsg.o
+obj-y += opal-kmsg.o opal-powercap.o opal-psr.o opal-sensor-groups.o
obj-$(CONFIG_SMP) += smp.o subcore.o subcore-asm.o
obj-$(CONFIG_PCI) += pci.o pci-ioda.o npu-dma.o
@@ -12,3 +12,6 @@ obj-$(CONFIG_PPC_SCOM) += opal-xscom.o
obj-$(CONFIG_MEMORY_FAILURE) += opal-memory-errors.o
obj-$(CONFIG_TRACEPOINTS) += opal-tracepoints.o
obj-$(CONFIG_OPAL_PRD) += opal-prd.o
+obj-$(CONFIG_PERF_EVENTS) += opal-imc.o
+obj-$(CONFIG_PPC_MEMTRACE) += memtrace.o
+obj-$(CONFIG_PPC_VAS) += vas.o vas-window.o
diff --git a/arch/powerpc/platforms/powernv/copy-paste.h b/arch/powerpc/platforms/powernv/copy-paste.h
new file mode 100644
index 000000000000..c9a503623431
--- /dev/null
+++ b/arch/powerpc/platforms/powernv/copy-paste.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2016-17 IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <asm/ppc-opcode.h>
+
+#define CR0_SHIFT 28
+#define CR0_MASK 0xF
+/*
+ * Copy/paste instructions:
+ *
+ * copy RA,RB
+ * Copy contents of address (RA) + effective_address(RB)
+ * to internal copy-buffer.
+ *
+ * paste RA,RB
+ * Paste contents of internal copy-buffer to the address
+ * (RA) + effective_address(RB)
+ */
+static inline int vas_copy(void *crb, int offset)
+{
+ asm volatile(PPC_COPY(%0, %1)";"
+ :
+ : "b" (offset), "b" (crb)
+ : "memory");
+
+ return 0;
+}
+
+static inline int vas_paste(void *paste_address, int offset)
+{
+ u32 cr;
+
+ cr = 0;
+ asm volatile(PPC_PASTE(%1, %2)";"
+ "mfocrf %0, 0x80;"
+ : "=r" (cr)
+ : "b" (offset), "b" (paste_address)
+ : "memory", "cr0");
+
+ return (cr >> CR0_SHIFT) & CR0_MASK;
+}
diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c
index d12ea7b9fd47..8864065eba22 100644
--- a/arch/powerpc/platforms/powernv/eeh-powernv.c
+++ b/arch/powerpc/platforms/powernv/eeh-powernv.c
@@ -48,6 +48,7 @@ static int pnv_eeh_init(void)
{
struct pci_controller *hose;
struct pnv_phb *phb;
+ int max_diag_size = PNV_PCI_DIAG_BUF_SIZE;
if (!firmware_has_feature(FW_FEATURE_OPAL)) {
pr_warn("%s: OPAL is required !\n",
@@ -69,6 +70,9 @@ static int pnv_eeh_init(void)
if (phb->model == PNV_PHB_MODEL_P7IOC)
eeh_add_flag(EEH_ENABLE_IO_FOR_LOG);
+ if (phb->diag_data_size > max_diag_size)
+ max_diag_size = phb->diag_data_size;
+
/*
* PE#0 should be regarded as valid by EEH core
* if it's not the reserved one. Currently, we
@@ -82,6 +86,8 @@ static int pnv_eeh_init(void)
break;
}
+ eeh_set_pe_aux_size(max_diag_size);
+
return 0;
}
@@ -107,7 +113,6 @@ static ssize_t pnv_eeh_ei_write(struct file *filp,
size_t count, loff_t *ppos)
{
struct pci_controller *hose = filp->private_data;
- struct eeh_dev *edev;
struct eeh_pe *pe;
int pe_no, type, func;
unsigned long addr, mask;
@@ -129,13 +134,7 @@ static ssize_t pnv_eeh_ei_write(struct file *filp,
return -EINVAL;
/* Retrieve PE */
- edev = kzalloc(sizeof(*edev), GFP_KERNEL);
- if (!edev)
- return -ENOMEM;
- edev->phb = hose;
- edev->pe_config_addr = pe_no;
- pe = eeh_pe_get(edev);
- kfree(edev);
+ pe = eeh_pe_get(hose, pe_no, 0);
if (!pe)
return -ENODEV;
@@ -353,6 +352,7 @@ static void *pnv_eeh_probe(struct pci_dn *pdn, void *data)
struct eeh_dev *edev = pdn_to_eeh_dev(pdn);
uint32_t pcie_flags;
int ret;
+ int config_addr = (pdn->busno << 8) | (pdn->devfn);
/*
* When probing the root bridge, which doesn't have any
@@ -387,8 +387,7 @@ static void *pnv_eeh_probe(struct pci_dn *pdn, void *data)
}
}
- edev->config_addr = (pdn->busno << 8) | (pdn->devfn);
- edev->pe_config_addr = phb->ioda.pe_rmap[edev->config_addr];
+ edev->pe_config_addr = phb->ioda.pe_rmap[config_addr];
/* Create PE */
ret = eeh_add_to_parent_pe(edev);
@@ -540,7 +539,7 @@ static void pnv_eeh_get_phb_diag(struct eeh_pe *pe)
s64 rc;
rc = opal_pci_get_phb_diag_data2(phb->opal_id, pe->data,
- PNV_PCI_DIAG_BUF_SIZE);
+ phb->diag_data_size);
if (rc != OPAL_SUCCESS)
pr_warn("%s: Failure %lld getting PHB#%x diag-data\n",
__func__, rc, pe->phb->global_number);
@@ -927,7 +926,6 @@ void pnv_pci_reset_secondary_bus(struct pci_dev *dev)
static void pnv_eeh_wait_for_pending(struct pci_dn *pdn, const char *type,
int pos, u16 mask)
{
- struct eeh_dev *edev = pdn_to_eeh_dev(pdn);
int i, status = 0;
/* Wait for Transaction Pending bit to be cleared */
@@ -941,7 +939,7 @@ static void pnv_eeh_wait_for_pending(struct pci_dn *pdn, const char *type,
pr_warn("%s: Pending transaction while issuing %sFLR to %04x:%02x:%02x.%01x\n",
__func__, type,
- edev->phb->global_number, pdn->busno,
+ pdn->phb->global_number, pdn->busno,
PCI_SLOT(pdn->devfn), PCI_FUNC(pdn->devfn));
}
@@ -1314,7 +1312,8 @@ static void pnv_eeh_dump_hub_diag_common(struct OpalIoP7IOCErrorData *data)
static void pnv_eeh_get_and_dump_hub_diag(struct pci_controller *hose)
{
struct pnv_phb *phb = hose->private_data;
- struct OpalIoP7IOCErrorData *data = &phb->diag.hub_diag;
+ struct OpalIoP7IOCErrorData *data =
+ (struct OpalIoP7IOCErrorData*)phb->diag_data;
long rc;
rc = opal_pci_get_hub_diag_data(phb->hub_id, data, sizeof(*data));
@@ -1374,7 +1373,6 @@ static int pnv_eeh_get_pe(struct pci_controller *hose,
struct pnv_phb *phb = hose->private_data;
struct pnv_ioda_pe *pnv_pe;
struct eeh_pe *dev_pe;
- struct eeh_dev edev;
/*
* If PHB supports compound PE, to fetch
@@ -1390,10 +1388,7 @@ static int pnv_eeh_get_pe(struct pci_controller *hose,
}
/* Find the PE according to PE# */
- memset(&edev, 0, sizeof(struct eeh_dev));
- edev.phb = hose;
- edev.pe_config_addr = pe_no;
- dev_pe = eeh_pe_get(&edev);
+ dev_pe = eeh_pe_get(hose, pe_no, 0);
if (!dev_pe)
return -EEXIST;
@@ -1549,10 +1544,10 @@ static int pnv_eeh_next_error(struct eeh_pe **pe)
/* Dump PHB diag-data */
rc = opal_pci_get_phb_diag_data2(phb->opal_id,
- phb->diag.blob, PNV_PCI_DIAG_BUF_SIZE);
+ phb->diag_data, phb->diag_data_size);
if (rc == OPAL_SUCCESS)
pnv_pci_dump_phb_diag_data(hose,
- phb->diag.blob);
+ phb->diag_data);
/* Try best to clear it */
opal_pci_eeh_freeze_clear(phb->opal_id,
@@ -1704,6 +1699,7 @@ static int pnv_eeh_restore_config(struct pci_dn *pdn)
struct eeh_dev *edev = pdn_to_eeh_dev(pdn);
struct pnv_phb *phb;
s64 ret;
+ int config_addr = (pdn->busno << 8) | (pdn->devfn);
if (!edev)
return -EEXIST;
@@ -1718,14 +1714,14 @@ static int pnv_eeh_restore_config(struct pci_dn *pdn)
if (edev->physfn) {
ret = pnv_eeh_restore_vf_config(pdn);
} else {
- phb = edev->phb->private_data;
+ phb = pdn->phb->private_data;
ret = opal_pci_reinit(phb->opal_id,
- OPAL_REINIT_PCI_DEV, edev->config_addr);
+ OPAL_REINIT_PCI_DEV, config_addr);
}
if (ret) {
pr_warn("%s: Can't reinit PCI dev 0x%x (%lld)\n",
- __func__, edev->config_addr, ret);
+ __func__, config_addr, ret);
return -EIO;
}
@@ -1795,7 +1791,6 @@ static int __init eeh_powernv_init(void)
{
int ret = -EINVAL;
- eeh_set_pe_aux_size(PNV_PCI_DIAG_BUF_SIZE);
ret = eeh_ops_register(&pnv_eeh_ops);
if (!ret)
pr_info("EEH: PowerNV platform initialized\n");
diff --git a/arch/powerpc/platforms/powernv/idle.c b/arch/powerpc/platforms/powernv/idle.c
index 445f30a2c5ef..443d5ca71995 100644
--- a/arch/powerpc/platforms/powernv/idle.c
+++ b/arch/powerpc/platforms/powernv/idle.c
@@ -23,6 +23,7 @@
#include <asm/cpuidle.h>
#include <asm/code-patching.h>
#include <asm/smp.h>
+#include <asm/runlatch.h>
#include "powernv.h"
#include "subcore.h"
@@ -30,8 +31,34 @@
/* Power ISA 3.0 allows for stop states 0x0 - 0xF */
#define MAX_STOP_STATE 0xF
+#define P9_STOP_SPR_MSR 2000
+#define P9_STOP_SPR_PSSCR 855
+
static u32 supported_cpuidle_states;
+/*
+ * The default stop state that will be used by ppc_md.power_save
+ * function on platforms that support stop instruction.
+ */
+static u64 pnv_default_stop_val;
+static u64 pnv_default_stop_mask;
+static bool default_stop_found;
+
+/*
+ * First deep stop state. Used to figure out when to save/restore
+ * hypervisor context.
+ */
+u64 pnv_first_deep_stop_state = MAX_STOP_STATE;
+
+/*
+ * psscr value and mask of the deepest stop idle state.
+ * Used when a cpu is offlined.
+ */
+static u64 pnv_deepest_stop_psscr_val;
+static u64 pnv_deepest_stop_psscr_mask;
+static u64 pnv_deepest_stop_flag;
+static bool deepest_stop_found;
+
static int pnv_save_sprs_for_deep_states(void)
{
int cpu;
@@ -42,12 +69,14 @@ static int pnv_save_sprs_for_deep_states(void)
* all cpus at boot. Get these reg values of current cpu and use the
* same across all cpus.
*/
- uint64_t lpcr_val = mfspr(SPRN_LPCR) & ~(u64)LPCR_PECE1;
+ uint64_t lpcr_val = mfspr(SPRN_LPCR);
uint64_t hid0_val = mfspr(SPRN_HID0);
uint64_t hid1_val = mfspr(SPRN_HID1);
uint64_t hid4_val = mfspr(SPRN_HID4);
uint64_t hid5_val = mfspr(SPRN_HID5);
uint64_t hmeer_val = mfspr(SPRN_HMEER);
+ uint64_t msr_val = MSR_IDLE;
+ uint64_t psscr_val = pnv_deepest_stop_psscr_val;
for_each_possible_cpu(cpu) {
uint64_t pir = get_hard_smp_processor_id(cpu);
@@ -61,6 +90,18 @@ static int pnv_save_sprs_for_deep_states(void)
if (rc != 0)
return rc;
+ if (cpu_has_feature(CPU_FTR_ARCH_300)) {
+ rc = opal_slw_set_reg(pir, P9_STOP_SPR_MSR, msr_val);
+ if (rc)
+ return rc;
+
+ rc = opal_slw_set_reg(pir,
+ P9_STOP_SPR_PSSCR, psscr_val);
+
+ if (rc)
+ return rc;
+ }
+
/* HIDs are per core registers */
if (cpu_thread_in_core(cpu) == 0) {
@@ -72,17 +113,21 @@ static int pnv_save_sprs_for_deep_states(void)
if (rc != 0)
return rc;
- rc = opal_slw_set_reg(pir, SPRN_HID1, hid1_val);
- if (rc != 0)
- return rc;
+ /* Only p8 needs to set extra HID regiters */
+ if (!cpu_has_feature(CPU_FTR_ARCH_300)) {
- rc = opal_slw_set_reg(pir, SPRN_HID4, hid4_val);
- if (rc != 0)
- return rc;
+ rc = opal_slw_set_reg(pir, SPRN_HID1, hid1_val);
+ if (rc != 0)
+ return rc;
- rc = opal_slw_set_reg(pir, SPRN_HID5, hid5_val);
- if (rc != 0)
- return rc;
+ rc = opal_slw_set_reg(pir, SPRN_HID4, hid4_val);
+ if (rc != 0)
+ return rc;
+
+ rc = opal_slw_set_reg(pir, SPRN_HID5, hid5_val);
+ if (rc != 0)
+ return rc;
+ }
}
}
@@ -96,15 +141,24 @@ static void pnv_alloc_idle_core_states(void)
u32 *core_idle_state;
/*
- * core_idle_state - First 8 bits track the idle state of each thread
- * of the core. The 8th bit is the lock bit. Initially all thread bits
- * are set. They are cleared when the thread enters deep idle state
- * like sleep and winkle. Initially the lock bit is cleared.
- * The lock bit has 2 purposes
- * a. While the first thread is restoring core state, it prevents
- * other threads in the core from switching to process context.
- * b. While the last thread in the core is saving the core state, it
- * prevents a different thread from waking up.
+ * core_idle_state - The lower 8 bits track the idle state of
+ * each thread of the core.
+ *
+ * The most significant bit is the lock bit.
+ *
+ * Initially all the bits corresponding to threads_per_core
+ * are set. They are cleared when the thread enters deep idle
+ * state like sleep and winkle/stop.
+ *
+ * Initially the lock bit is cleared. The lock bit has 2
+ * purposes:
+ * a. While the first thread in the core waking up from
+ * idle is restoring core state, it prevents other
+ * threads in the core from switching to process
+ * context.
+ * b. While the last thread in the core is saving the
+ * core state, it prevents a different thread from
+ * waking up.
*/
for (i = 0; i < nr_cores; i++) {
int first_cpu = i * threads_per_core;
@@ -112,7 +166,7 @@ static void pnv_alloc_idle_core_states(void)
size_t paca_ptr_array_size;
core_idle_state = kmalloc_node(sizeof(u32), GFP_KERNEL, node);
- *core_idle_state = PNV_CORE_IDLE_THREAD_BITS;
+ *core_idle_state = (1 << threads_per_core) - 1;
paca_ptr_array_size = (threads_per_core *
sizeof(struct paca_struct *));
@@ -132,8 +186,40 @@ static void pnv_alloc_idle_core_states(void)
update_subcore_sibling_mask();
- if (supported_cpuidle_states & OPAL_PM_LOSE_FULL_CONTEXT)
- pnv_save_sprs_for_deep_states();
+ if (supported_cpuidle_states & OPAL_PM_LOSE_FULL_CONTEXT) {
+ int rc = pnv_save_sprs_for_deep_states();
+
+ if (likely(!rc))
+ return;
+
+ /*
+ * The stop-api is unable to restore hypervisor
+ * resources on wakeup from platform idle states which
+ * lose full context. So disable such states.
+ */
+ supported_cpuidle_states &= ~OPAL_PM_LOSE_FULL_CONTEXT;
+ pr_warn("cpuidle-powernv: Disabling idle states that lose full context\n");
+ pr_warn("cpuidle-powernv: Idle power-savings, CPU-Hotplug affected\n");
+
+ if (cpu_has_feature(CPU_FTR_ARCH_300) &&
+ (pnv_deepest_stop_flag & OPAL_PM_LOSE_FULL_CONTEXT)) {
+ /*
+ * Use the default stop state for CPU-Hotplug
+ * if available.
+ */
+ if (default_stop_found) {
+ pnv_deepest_stop_psscr_val =
+ pnv_default_stop_val;
+ pnv_deepest_stop_psscr_mask =
+ pnv_default_stop_mask;
+ pr_warn("cpuidle-powernv: Offlined CPUs will stop with psscr = 0x%016llx\n",
+ pnv_deepest_stop_psscr_val);
+ } else { /* Fallback to snooze loop for CPU-Hotplug */
+ deepest_stop_found = false;
+ pr_warn("cpuidle-powernv: Offlined CPUs will busy wait\n");
+ }
+ }
+ }
}
u32 pnv_get_supported_cpuidle_states(void)
@@ -231,56 +317,133 @@ static DEVICE_ATTR(fastsleep_workaround_applyonce, 0600,
show_fastsleep_workaround_applyonce,
store_fastsleep_workaround_applyonce);
-/*
- * The default stop state that will be used by ppc_md.power_save
- * function on platforms that support stop instruction.
- */
-static u64 pnv_default_stop_val;
-static u64 pnv_default_stop_mask;
-static bool default_stop_found;
+static unsigned long __power7_idle_type(unsigned long type)
+{
+ unsigned long srr1;
+
+ if (!prep_irq_for_idle_irqsoff())
+ return 0;
+
+ __ppc64_runlatch_off();
+ srr1 = power7_idle_insn(type);
+ __ppc64_runlatch_on();
+
+ fini_irq_for_idle_irqsoff();
+
+ return srr1;
+}
+
+void power7_idle_type(unsigned long type)
+{
+ unsigned long srr1;
+
+ srr1 = __power7_idle_type(type);
+ irq_set_pending_from_srr1(srr1);
+}
+
+void power7_idle(void)
+{
+ if (!powersave_nap)
+ return;
+
+ power7_idle_type(PNV_THREAD_NAP);
+}
+
+static unsigned long __power9_idle_type(unsigned long stop_psscr_val,
+ unsigned long stop_psscr_mask)
+{
+ unsigned long psscr;
+ unsigned long srr1;
+
+ if (!prep_irq_for_idle_irqsoff())
+ return 0;
+
+ psscr = mfspr(SPRN_PSSCR);
+ psscr = (psscr & ~stop_psscr_mask) | stop_psscr_val;
+
+ __ppc64_runlatch_off();
+ srr1 = power9_idle_stop(psscr);
+ __ppc64_runlatch_on();
+
+ fini_irq_for_idle_irqsoff();
+
+ return srr1;
+}
+
+void power9_idle_type(unsigned long stop_psscr_val,
+ unsigned long stop_psscr_mask)
+{
+ unsigned long srr1;
+
+ srr1 = __power9_idle_type(stop_psscr_val, stop_psscr_mask);
+ irq_set_pending_from_srr1(srr1);
+}
/*
* Used for ppc_md.power_save which needs a function with no parameters
*/
-static void power9_idle(void)
+void power9_idle(void)
{
- power9_idle_stop(pnv_default_stop_val, pnv_default_stop_mask);
+ power9_idle_type(pnv_default_stop_val, pnv_default_stop_mask);
}
-/*
- * First deep stop state. Used to figure out when to save/restore
- * hypervisor context.
- */
-u64 pnv_first_deep_stop_state = MAX_STOP_STATE;
+#ifdef CONFIG_HOTPLUG_CPU
+static void pnv_program_cpu_hotplug_lpcr(unsigned int cpu, u64 lpcr_val)
+{
+ u64 pir = get_hard_smp_processor_id(cpu);
-/*
- * psscr value and mask of the deepest stop idle state.
- * Used when a cpu is offlined.
- */
-static u64 pnv_deepest_stop_psscr_val;
-static u64 pnv_deepest_stop_psscr_mask;
-static bool deepest_stop_found;
+ mtspr(SPRN_LPCR, lpcr_val);
+
+ /*
+ * Program the LPCR via stop-api only if the deepest stop state
+ * can lose hypervisor context.
+ */
+ if (supported_cpuidle_states & OPAL_PM_LOSE_FULL_CONTEXT)
+ opal_slw_set_reg(pir, SPRN_LPCR, lpcr_val);
+}
/*
* pnv_cpu_offline: A function that puts the CPU into the deepest
* available platform idle state on a CPU-Offline.
+ * interrupts hard disabled and no lazy irq pending.
*/
unsigned long pnv_cpu_offline(unsigned int cpu)
{
unsigned long srr1;
-
u32 idle_states = pnv_get_supported_cpuidle_states();
+ u64 lpcr_val;
+
+ /*
+ * We don't want to take decrementer interrupts while we are
+ * offline, so clear LPCR:PECE1. We keep PECE2 (and
+ * LPCR_PECE_HVEE on P9) enabled as to let IPIs in.
+ *
+ * If the CPU gets woken up by a special wakeup, ensure that
+ * the SLW engine sets LPCR with decrementer bit cleared, else
+ * the CPU will come back to the kernel due to a spurious
+ * wakeup.
+ */
+ lpcr_val = mfspr(SPRN_LPCR) & ~(u64)LPCR_PECE1;
+ pnv_program_cpu_hotplug_lpcr(cpu, lpcr_val);
+
+ __ppc64_runlatch_off();
if (cpu_has_feature(CPU_FTR_ARCH_300) && deepest_stop_found) {
- srr1 = power9_idle_stop(pnv_deepest_stop_psscr_val,
- pnv_deepest_stop_psscr_mask);
- } else if (idle_states & OPAL_PM_WINKLE_ENABLED) {
- srr1 = power7_winkle();
+ unsigned long psscr;
+
+ psscr = mfspr(SPRN_PSSCR);
+ psscr = (psscr & ~pnv_deepest_stop_psscr_mask) |
+ pnv_deepest_stop_psscr_val;
+ srr1 = power9_idle_stop(psscr);
+
+ } else if ((idle_states & OPAL_PM_WINKLE_ENABLED) &&
+ (idle_states & OPAL_PM_LOSE_FULL_CONTEXT)) {
+ srr1 = power7_idle_insn(PNV_THREAD_WINKLE);
} else if ((idle_states & OPAL_PM_SLEEP_ENABLED) ||
(idle_states & OPAL_PM_SLEEP_ENABLED_ER1)) {
- srr1 = power7_sleep();
+ srr1 = power7_idle_insn(PNV_THREAD_SLEEP);
} else if (idle_states & OPAL_PM_NAP_ENABLED) {
- srr1 = power7_nap(1);
+ srr1 = power7_idle_insn(PNV_THREAD_NAP);
} else {
/* This is the fallback method. We emulate snooze */
while (!generic_check_cpu_restart(cpu)) {
@@ -291,8 +454,21 @@ unsigned long pnv_cpu_offline(unsigned int cpu)
HMT_medium();
}
+ __ppc64_runlatch_on();
+
+ /*
+ * Re-enable decrementer interrupts in LPCR.
+ *
+ * Further, we want stop states to be woken up by decrementer
+ * for non-hotplug cases. So program the LPCR via stop api as
+ * well.
+ */
+ lpcr_val = mfspr(SPRN_LPCR) | (u64)LPCR_PECE1;
+ pnv_program_cpu_hotplug_lpcr(cpu, lpcr_val);
+
return srr1;
}
+#endif
/*
* Power ISA 3.0 idle initialization.
@@ -449,6 +625,7 @@ static int __init pnv_power9_idle_init(struct device_node *np, u32 *flags,
max_residency_ns = residency_ns[i];
pnv_deepest_stop_psscr_val = psscr_val[i];
pnv_deepest_stop_psscr_mask = psscr_mask[i];
+ pnv_deepest_stop_flag = flags[i];
deepest_stop_found = true;
}
diff --git a/arch/powerpc/platforms/powernv/memtrace.c b/arch/powerpc/platforms/powernv/memtrace.c
new file mode 100644
index 000000000000..de470caf0784
--- /dev/null
+++ b/arch/powerpc/platforms/powernv/memtrace.c
@@ -0,0 +1,282 @@
+/*
+ * Copyright (C) IBM Corporation, 2014, 2017
+ * Anton Blanchard, Rashmica Gupta.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#define pr_fmt(fmt) "memtrace: " fmt
+
+#include <linux/bitops.h>
+#include <linux/string.h>
+#include <linux/memblock.h>
+#include <linux/init.h>
+#include <linux/moduleparam.h>
+#include <linux/fs.h>
+#include <linux/debugfs.h>
+#include <linux/slab.h>
+#include <linux/memory.h>
+#include <linux/memory_hotplug.h>
+#include <asm/machdep.h>
+#include <asm/debugfs.h>
+
+/* This enables us to keep track of the memory removed from each node. */
+struct memtrace_entry {
+ void *mem;
+ u64 start;
+ u64 size;
+ u32 nid;
+ struct dentry *dir;
+ char name[16];
+};
+
+static u64 memtrace_size;
+
+static struct memtrace_entry *memtrace_array;
+static unsigned int memtrace_array_nr;
+
+
+static ssize_t memtrace_read(struct file *filp, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct memtrace_entry *ent = filp->private_data;
+
+ return simple_read_from_buffer(ubuf, count, ppos, ent->mem, ent->size);
+}
+
+static bool valid_memtrace_range(struct memtrace_entry *dev,
+ unsigned long start, unsigned long size)
+{
+ if ((start >= dev->start) &&
+ ((start + size) <= (dev->start + dev->size)))
+ return true;
+
+ return false;
+}
+
+static int memtrace_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+ unsigned long size = vma->vm_end - vma->vm_start;
+ struct memtrace_entry *dev = filp->private_data;
+
+ if (!valid_memtrace_range(dev, vma->vm_pgoff << PAGE_SHIFT, size))
+ return -EINVAL;
+
+ vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+
+ if (remap_pfn_range(vma, vma->vm_start,
+ vma->vm_pgoff + (dev->start >> PAGE_SHIFT),
+ size, vma->vm_page_prot))
+ return -EAGAIN;
+
+ return 0;
+}
+
+static const struct file_operations memtrace_fops = {
+ .llseek = default_llseek,
+ .read = memtrace_read,
+ .mmap = memtrace_mmap,
+ .open = simple_open,
+};
+
+static void flush_memory_region(u64 base, u64 size)
+{
+ unsigned long line_size = ppc64_caches.l1d.size;
+ u64 end = base + size;
+ u64 addr;
+
+ base = round_down(base, line_size);
+ end = round_up(end, line_size);
+
+ for (addr = base; addr < end; addr += line_size)
+ asm volatile("dcbf 0,%0" : "=r" (addr) :: "memory");
+}
+
+static int check_memblock_online(struct memory_block *mem, void *arg)
+{
+ if (mem->state != MEM_ONLINE)
+ return -1;
+
+ return 0;
+}
+
+static int change_memblock_state(struct memory_block *mem, void *arg)
+{
+ unsigned long state = (unsigned long)arg;
+
+ mem->state = state;
+
+ return 0;
+}
+
+static bool memtrace_offline_pages(u32 nid, u64 start_pfn, u64 nr_pages)
+{
+ u64 end_pfn = start_pfn + nr_pages - 1;
+
+ if (walk_memory_range(start_pfn, end_pfn, NULL,
+ check_memblock_online))
+ return false;
+
+ walk_memory_range(start_pfn, end_pfn, (void *)MEM_GOING_OFFLINE,
+ change_memblock_state);
+
+ if (offline_pages(start_pfn, nr_pages)) {
+ walk_memory_range(start_pfn, end_pfn, (void *)MEM_ONLINE,
+ change_memblock_state);
+ return false;
+ }
+
+ walk_memory_range(start_pfn, end_pfn, (void *)MEM_OFFLINE,
+ change_memblock_state);
+
+ /* RCU grace period? */
+ flush_memory_region((u64)__va(start_pfn << PAGE_SHIFT),
+ nr_pages << PAGE_SHIFT);
+
+ lock_device_hotplug();
+ remove_memory(nid, start_pfn << PAGE_SHIFT, nr_pages << PAGE_SHIFT);
+ unlock_device_hotplug();
+
+ return true;
+}
+
+static u64 memtrace_alloc_node(u32 nid, u64 size)
+{
+ u64 start_pfn, end_pfn, nr_pages;
+ u64 base_pfn;
+
+ if (!NODE_DATA(nid) || !node_spanned_pages(nid))
+ return 0;
+
+ start_pfn = node_start_pfn(nid);
+ end_pfn = node_end_pfn(nid);
+ nr_pages = size >> PAGE_SHIFT;
+
+ /* Trace memory needs to be aligned to the size */
+ end_pfn = round_down(end_pfn - nr_pages, nr_pages);
+
+ for (base_pfn = end_pfn; base_pfn > start_pfn; base_pfn -= nr_pages) {
+ if (memtrace_offline_pages(nid, base_pfn, nr_pages) == true)
+ return base_pfn << PAGE_SHIFT;
+ }
+
+ return 0;
+}
+
+static int memtrace_init_regions_runtime(u64 size)
+{
+ u32 nid;
+ u64 m;
+
+ memtrace_array = kcalloc(num_online_nodes(),
+ sizeof(struct memtrace_entry), GFP_KERNEL);
+ if (!memtrace_array) {
+ pr_err("Failed to allocate memtrace_array\n");
+ return -EINVAL;
+ }
+
+ for_each_online_node(nid) {
+ m = memtrace_alloc_node(nid, size);
+
+ /*
+ * A node might not have any local memory, so warn but
+ * continue on.
+ */
+ if (!m) {
+ pr_err("Failed to allocate trace memory on node %d\n", nid);
+ continue;
+ }
+
+ pr_info("Allocated trace memory on node %d at 0x%016llx\n", nid, m);
+
+ memtrace_array[memtrace_array_nr].start = m;
+ memtrace_array[memtrace_array_nr].size = size;
+ memtrace_array[memtrace_array_nr].nid = nid;
+ memtrace_array_nr++;
+ }
+
+ return 0;
+}
+
+static struct dentry *memtrace_debugfs_dir;
+
+static int memtrace_init_debugfs(void)
+{
+ int ret = 0;
+ int i;
+
+ for (i = 0; i < memtrace_array_nr; i++) {
+ struct dentry *dir;
+ struct memtrace_entry *ent = &memtrace_array[i];
+
+ ent->mem = ioremap(ent->start, ent->size);
+ /* Warn but continue on */
+ if (!ent->mem) {
+ pr_err("Failed to map trace memory at 0x%llx\n",
+ ent->start);
+ ret = -1;
+ continue;
+ }
+
+ snprintf(ent->name, 16, "%08x", ent->nid);
+ dir = debugfs_create_dir(ent->name, memtrace_debugfs_dir);
+ if (!dir)
+ return -1;
+
+ ent->dir = dir;
+ debugfs_create_file("trace", 0400, dir, ent, &memtrace_fops);
+ debugfs_create_x64("start", 0400, dir, &ent->start);
+ debugfs_create_x64("size", 0400, dir, &ent->size);
+ }
+
+ return ret;
+}
+
+static int memtrace_enable_set(void *data, u64 val)
+{
+ if (memtrace_size)
+ return -EINVAL;
+
+ if (!val)
+ return -EINVAL;
+
+ /* Make sure size is aligned to a memory block */
+ if (val & (memory_block_size_bytes() - 1))
+ return -EINVAL;
+
+ if (memtrace_init_regions_runtime(val))
+ return -EINVAL;
+
+ if (memtrace_init_debugfs())
+ return -EINVAL;
+
+ memtrace_size = val;
+
+ return 0;
+}
+
+static int memtrace_enable_get(void *data, u64 *val)
+{
+ *val = memtrace_size;
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(memtrace_init_fops, memtrace_enable_get,
+ memtrace_enable_set, "0x%016llx\n");
+
+static int memtrace_init(void)
+{
+ memtrace_debugfs_dir = debugfs_create_dir("memtrace",
+ powerpc_debugfs_root);
+ if (!memtrace_debugfs_dir)
+ return -1;
+
+ debugfs_create_file("enable", 0600, memtrace_debugfs_dir,
+ NULL, &memtrace_init_fops);
+
+ return 0;
+}
+machine_device_initcall(powernv, memtrace_init);
diff --git a/arch/powerpc/platforms/powernv/npu-dma.c b/arch/powerpc/platforms/powernv/npu-dma.c
index b5d960d6db3d..2cb6cbea4b3b 100644
--- a/arch/powerpc/platforms/powernv/npu-dma.c
+++ b/arch/powerpc/platforms/powernv/npu-dma.c
@@ -546,6 +546,12 @@ static void mmio_invalidate(struct npu_context *npu_context, int va,
unsigned long pid = npu_context->mm->context.id;
/*
+ * Unfortunately the nest mmu does not support flushing specific
+ * addresses so we have to flush the whole mm.
+ */
+ flush_tlb_mm(npu_context->mm);
+
+ /*
* Loop over all the NPUs this process is active on and launch
* an invalidate.
*/
@@ -576,12 +582,6 @@ static void mmio_invalidate(struct npu_context *npu_context, int va,
}
}
- /*
- * Unfortunately the nest mmu does not support flushing specific
- * addresses so we have to flush the whole mm.
- */
- flush_tlb_mm(npu_context->mm);
-
mmio_invalidate_wait(mmio_atsd_reg, flush);
if (flush)
/* Wait for the flush to complete */
@@ -614,15 +614,6 @@ static void pnv_npu2_mn_change_pte(struct mmu_notifier *mn,
mmio_invalidate(npu_context, 1, address, true);
}
-static void pnv_npu2_mn_invalidate_page(struct mmu_notifier *mn,
- struct mm_struct *mm,
- unsigned long address)
-{
- struct npu_context *npu_context = mn_to_npu_context(mn);
-
- mmio_invalidate(npu_context, 1, address, true);
-}
-
static void pnv_npu2_mn_invalidate_range(struct mmu_notifier *mn,
struct mm_struct *mm,
unsigned long start, unsigned long end)
@@ -640,7 +631,6 @@ static void pnv_npu2_mn_invalidate_range(struct mmu_notifier *mn,
static const struct mmu_notifier_ops nv_nmmu_notifier_ops = {
.release = pnv_npu2_mn_release,
.change_pte = pnv_npu2_mn_change_pte,
- .invalidate_page = pnv_npu2_mn_invalidate_page,
.invalidate_range = pnv_npu2_mn_invalidate_range,
};
diff --git a/arch/powerpc/platforms/powernv/opal-async.c b/arch/powerpc/platforms/powernv/opal-async.c
index 83bebeec0fea..cf33769a7b72 100644
--- a/arch/powerpc/platforms/powernv/opal-async.c
+++ b/arch/powerpc/platforms/powernv/opal-async.c
@@ -171,8 +171,8 @@ int __init opal_async_comp_init(void)
async = of_get_property(opal_node, "opal-msg-async-num", NULL);
if (!async) {
- pr_err("%s: %s has no opal-msg-async-num\n",
- __func__, opal_node->full_name);
+ pr_err("%s: %pOF has no opal-msg-async-num\n",
+ __func__, opal_node);
err = -ENOENT;
goto out_opal_node;
}
diff --git a/arch/powerpc/platforms/powernv/opal-flash.c b/arch/powerpc/platforms/powernv/opal-flash.c
index 4ec6219287fc..2fa3ac80cb4e 100644
--- a/arch/powerpc/platforms/powernv/opal-flash.c
+++ b/arch/powerpc/platforms/powernv/opal-flash.c
@@ -520,7 +520,7 @@ out:
* update_flash : Flash new firmware image
*
*/
-static struct bin_attribute image_data_attr = {
+static const struct bin_attribute image_data_attr = {
.attr = {.name = "image", .mode = 0200},
.size = MAX_IMAGE_SIZE, /* Limit image size */
.write = image_data_write,
diff --git a/arch/powerpc/platforms/powernv/opal-hmi.c b/arch/powerpc/platforms/powernv/opal-hmi.c
index 88f3c61eec95..d78fed728cdf 100644
--- a/arch/powerpc/platforms/powernv/opal-hmi.c
+++ b/arch/powerpc/platforms/powernv/opal-hmi.c
@@ -30,6 +30,8 @@
#include <asm/cputable.h>
#include <asm/machdep.h>
+#include "powernv.h"
+
static int opal_hmi_handler_nb_init;
struct OpalHmiEvtNode {
struct list_head list;
@@ -267,8 +269,6 @@ static void hmi_event_handler(struct work_struct *work)
spin_unlock_irqrestore(&opal_hmi_evt_lock, flags);
if (unrecoverable) {
- int ret;
-
/* Pull all HMI events from OPAL before we panic. */
while (opal_get_msg(__pa(&msg), sizeof(msg)) == OPAL_SUCCESS) {
u32 type;
@@ -284,23 +284,7 @@ static void hmi_event_handler(struct work_struct *work)
print_hmi_event_info(hmi_evt);
}
- /*
- * Unrecoverable HMI exception. We need to inform BMC/OCC
- * about this error so that it can collect relevant data
- * for error analysis before rebooting.
- */
- ret = opal_cec_reboot2(OPAL_REBOOT_PLATFORM_ERROR,
- "Unrecoverable HMI exception");
- if (ret == OPAL_UNSUPPORTED) {
- pr_emerg("Reboot type %d not supported\n",
- OPAL_REBOOT_PLATFORM_ERROR);
- }
-
- /*
- * Fall through and panic if opal_cec_reboot2() returns
- * OPAL_UNSUPPORTED.
- */
- panic("Unrecoverable HMI exception");
+ pnv_platform_error_reboot(NULL, "Unrecoverable HMI exception");
}
}
diff --git a/arch/powerpc/platforms/powernv/opal-imc.c b/arch/powerpc/platforms/powernv/opal-imc.c
new file mode 100644
index 000000000000..21f6531fae20
--- /dev/null
+++ b/arch/powerpc/platforms/powernv/opal-imc.c
@@ -0,0 +1,226 @@
+/*
+ * OPAL IMC interface detection driver
+ * Supported on POWERNV platform
+ *
+ * Copyright (C) 2017 Madhavan Srinivasan, IBM Corporation.
+ * (C) 2017 Anju T Sudhakar, IBM Corporation.
+ * (C) 2017 Hemant K Shaw, IBM Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or later version.
+ */
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/crash_dump.h>
+#include <asm/opal.h>
+#include <asm/io.h>
+#include <asm/imc-pmu.h>
+#include <asm/cputhreads.h>
+
+/*
+ * imc_get_mem_addr_nest: Function to get nest counter memory region
+ * for each chip
+ */
+static int imc_get_mem_addr_nest(struct device_node *node,
+ struct imc_pmu *pmu_ptr,
+ u32 offset)
+{
+ int nr_chips = 0, i;
+ u64 *base_addr_arr, baddr;
+ u32 *chipid_arr;
+
+ nr_chips = of_property_count_u32_elems(node, "chip-id");
+ if (nr_chips <= 0)
+ return -ENODEV;
+
+ base_addr_arr = kcalloc(nr_chips, sizeof(u64), GFP_KERNEL);
+ if (!base_addr_arr)
+ return -ENOMEM;
+
+ chipid_arr = kcalloc(nr_chips, sizeof(u32), GFP_KERNEL);
+ if (!chipid_arr)
+ return -ENOMEM;
+
+ if (of_property_read_u32_array(node, "chip-id", chipid_arr, nr_chips))
+ goto error;
+
+ if (of_property_read_u64_array(node, "base-addr", base_addr_arr,
+ nr_chips))
+ goto error;
+
+ pmu_ptr->mem_info = kcalloc(nr_chips, sizeof(struct imc_mem_info),
+ GFP_KERNEL);
+ if (!pmu_ptr->mem_info)
+ goto error;
+
+ for (i = 0; i < nr_chips; i++) {
+ pmu_ptr->mem_info[i].id = chipid_arr[i];
+ baddr = base_addr_arr[i] + offset;
+ pmu_ptr->mem_info[i].vbase = phys_to_virt(baddr);
+ }
+
+ pmu_ptr->imc_counter_mmaped = true;
+ kfree(base_addr_arr);
+ kfree(chipid_arr);
+ return 0;
+
+error:
+ kfree(pmu_ptr->mem_info);
+ kfree(base_addr_arr);
+ kfree(chipid_arr);
+ return -1;
+}
+
+/*
+ * imc_pmu_create : Takes the parent device which is the pmu unit, pmu_index
+ * and domain as the inputs.
+ * Allocates memory for the struct imc_pmu, sets up its domain, size and offsets
+ */
+static int imc_pmu_create(struct device_node *parent, int pmu_index, int domain)
+{
+ int ret = 0;
+ struct imc_pmu *pmu_ptr;
+ u32 offset;
+
+ /* memory for pmu */
+ pmu_ptr = kzalloc(sizeof(struct imc_pmu), GFP_KERNEL);
+ if (!pmu_ptr)
+ return -ENOMEM;
+
+ /* Set the domain */
+ pmu_ptr->domain = domain;
+
+ ret = of_property_read_u32(parent, "size", &pmu_ptr->counter_mem_size);
+ if (ret) {
+ ret = -EINVAL;
+ goto free_pmu;
+ }
+
+ if (!of_property_read_u32(parent, "offset", &offset)) {
+ if (imc_get_mem_addr_nest(parent, pmu_ptr, offset)) {
+ ret = -EINVAL;
+ goto free_pmu;
+ }
+ }
+
+ /* Function to register IMC pmu */
+ ret = init_imc_pmu(parent, pmu_ptr, pmu_index);
+ if (ret)
+ pr_err("IMC PMU %s Register failed\n", pmu_ptr->pmu.name);
+
+ return 0;
+
+free_pmu:
+ kfree(pmu_ptr);
+ return ret;
+}
+
+static void disable_nest_pmu_counters(void)
+{
+ int nid, cpu;
+ const struct cpumask *l_cpumask;
+
+ get_online_cpus();
+ for_each_online_node(nid) {
+ l_cpumask = cpumask_of_node(nid);
+ cpu = cpumask_first(l_cpumask);
+ opal_imc_counters_stop(OPAL_IMC_COUNTERS_NEST,
+ get_hard_smp_processor_id(cpu));
+ }
+ put_online_cpus();
+}
+
+static void disable_core_pmu_counters(void)
+{
+ cpumask_t cores_map;
+ int cpu, rc;
+
+ get_online_cpus();
+ /* Disable the IMC Core functions */
+ cores_map = cpu_online_cores_map();
+ for_each_cpu(cpu, &cores_map) {
+ rc = opal_imc_counters_stop(OPAL_IMC_COUNTERS_CORE,
+ get_hard_smp_processor_id(cpu));
+ if (rc)
+ pr_err("%s: Failed to stop Core (cpu = %d)\n",
+ __FUNCTION__, cpu);
+ }
+ put_online_cpus();
+}
+
+static int opal_imc_counters_probe(struct platform_device *pdev)
+{
+ struct device_node *imc_dev = pdev->dev.of_node;
+ int pmu_count = 0, domain;
+ u32 type;
+
+ /*
+ * Check whether this is kdump kernel. If yes, force the engines to
+ * stop and return.
+ */
+ if (is_kdump_kernel()) {
+ disable_nest_pmu_counters();
+ disable_core_pmu_counters();
+ return -ENODEV;
+ }
+
+ for_each_compatible_node(imc_dev, NULL, IMC_DTB_UNIT_COMPAT) {
+ if (of_property_read_u32(imc_dev, "type", &type)) {
+ pr_warn("IMC Device without type property\n");
+ continue;
+ }
+
+ switch (type) {
+ case IMC_TYPE_CHIP:
+ domain = IMC_DOMAIN_NEST;
+ break;
+ case IMC_TYPE_CORE:
+ domain =IMC_DOMAIN_CORE;
+ break;
+ case IMC_TYPE_THREAD:
+ domain = IMC_DOMAIN_THREAD;
+ break;
+ default:
+ pr_warn("IMC Unknown Device type \n");
+ domain = -1;
+ break;
+ }
+
+ if (!imc_pmu_create(imc_dev, pmu_count, domain))
+ pmu_count++;
+ }
+
+ return 0;
+}
+
+static void opal_imc_counters_shutdown(struct platform_device *pdev)
+{
+ /*
+ * Function only stops the engines which is bare minimum.
+ * TODO: Need to handle proper memory cleanup and pmu
+ * unregister.
+ */
+ disable_nest_pmu_counters();
+ disable_core_pmu_counters();
+}
+
+static const struct of_device_id opal_imc_match[] = {
+ { .compatible = IMC_DTB_COMPAT },
+ {},
+};
+
+static struct platform_driver opal_imc_driver = {
+ .driver = {
+ .name = "opal-imc-counters",
+ .of_match_table = opal_imc_match,
+ },
+ .probe = opal_imc_counters_probe,
+ .shutdown = opal_imc_counters_shutdown,
+};
+
+builtin_platform_driver(opal_imc_driver);
diff --git a/arch/powerpc/platforms/powernv/opal-powercap.c b/arch/powerpc/platforms/powernv/opal-powercap.c
new file mode 100644
index 000000000000..badb29bde93f
--- /dev/null
+++ b/arch/powerpc/platforms/powernv/opal-powercap.c
@@ -0,0 +1,244 @@
+/*
+ * PowerNV OPAL Powercap interface
+ *
+ * Copyright 2017 IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#define pr_fmt(fmt) "opal-powercap: " fmt
+
+#include <linux/of.h>
+#include <linux/kobject.h>
+#include <linux/slab.h>
+
+#include <asm/opal.h>
+
+DEFINE_MUTEX(powercap_mutex);
+
+static struct kobject *powercap_kobj;
+
+struct powercap_attr {
+ u32 handle;
+ struct kobj_attribute attr;
+};
+
+static struct pcap {
+ struct attribute_group pg;
+ struct powercap_attr *pattrs;
+} *pcaps;
+
+static ssize_t powercap_show(struct kobject *kobj, struct kobj_attribute *attr,
+ char *buf)
+{
+ struct powercap_attr *pcap_attr = container_of(attr,
+ struct powercap_attr, attr);
+ struct opal_msg msg;
+ u32 pcap;
+ int ret, token;
+
+ token = opal_async_get_token_interruptible();
+ if (token < 0) {
+ pr_devel("Failed to get token\n");
+ return token;
+ }
+
+ ret = mutex_lock_interruptible(&powercap_mutex);
+ if (ret)
+ goto out_token;
+
+ ret = opal_get_powercap(pcap_attr->handle, token, (u32 *)__pa(&pcap));
+ switch (ret) {
+ case OPAL_ASYNC_COMPLETION:
+ ret = opal_async_wait_response(token, &msg);
+ if (ret) {
+ pr_devel("Failed to wait for the async response\n");
+ ret = -EIO;
+ goto out;
+ }
+ ret = opal_error_code(opal_get_async_rc(msg));
+ if (!ret) {
+ ret = sprintf(buf, "%u\n", be32_to_cpu(pcap));
+ if (ret < 0)
+ ret = -EIO;
+ }
+ break;
+ case OPAL_SUCCESS:
+ ret = sprintf(buf, "%u\n", be32_to_cpu(pcap));
+ if (ret < 0)
+ ret = -EIO;
+ break;
+ default:
+ ret = opal_error_code(ret);
+ }
+
+out:
+ mutex_unlock(&powercap_mutex);
+out_token:
+ opal_async_release_token(token);
+ return ret;
+}
+
+static ssize_t powercap_store(struct kobject *kobj,
+ struct kobj_attribute *attr, const char *buf,
+ size_t count)
+{
+ struct powercap_attr *pcap_attr = container_of(attr,
+ struct powercap_attr, attr);
+ struct opal_msg msg;
+ u32 pcap;
+ int ret, token;
+
+ ret = kstrtoint(buf, 0, &pcap);
+ if (ret)
+ return ret;
+
+ token = opal_async_get_token_interruptible();
+ if (token < 0) {
+ pr_devel("Failed to get token\n");
+ return token;
+ }
+
+ ret = mutex_lock_interruptible(&powercap_mutex);
+ if (ret)
+ goto out_token;
+
+ ret = opal_set_powercap(pcap_attr->handle, token, pcap);
+ switch (ret) {
+ case OPAL_ASYNC_COMPLETION:
+ ret = opal_async_wait_response(token, &msg);
+ if (ret) {
+ pr_devel("Failed to wait for the async response\n");
+ ret = -EIO;
+ goto out;
+ }
+ ret = opal_error_code(opal_get_async_rc(msg));
+ if (!ret)
+ ret = count;
+ break;
+ case OPAL_SUCCESS:
+ ret = count;
+ break;
+ default:
+ ret = opal_error_code(ret);
+ }
+
+out:
+ mutex_unlock(&powercap_mutex);
+out_token:
+ opal_async_release_token(token);
+ return ret;
+}
+
+static void powercap_add_attr(int handle, const char *name,
+ struct powercap_attr *attr)
+{
+ attr->handle = handle;
+ sysfs_attr_init(&attr->attr.attr);
+ attr->attr.attr.name = name;
+ attr->attr.attr.mode = 0444;
+ attr->attr.show = powercap_show;
+}
+
+void __init opal_powercap_init(void)
+{
+ struct device_node *powercap, *node;
+ int i = 0;
+
+ powercap = of_find_compatible_node(NULL, NULL, "ibm,opal-powercap");
+ if (!powercap) {
+ pr_devel("Powercap node not found\n");
+ return;
+ }
+
+ pcaps = kcalloc(of_get_child_count(powercap), sizeof(*pcaps),
+ GFP_KERNEL);
+ if (!pcaps)
+ return;
+
+ powercap_kobj = kobject_create_and_add("powercap", opal_kobj);
+ if (!powercap_kobj) {
+ pr_warn("Failed to create powercap kobject\n");
+ goto out_pcaps;
+ }
+
+ i = 0;
+ for_each_child_of_node(powercap, node) {
+ u32 cur, min, max;
+ int j = 0;
+ bool has_cur = false, has_min = false, has_max = false;
+
+ if (!of_property_read_u32(node, "powercap-min", &min)) {
+ j++;
+ has_min = true;
+ }
+
+ if (!of_property_read_u32(node, "powercap-max", &max)) {
+ j++;
+ has_max = true;
+ }
+
+ if (!of_property_read_u32(node, "powercap-current", &cur)) {
+ j++;
+ has_cur = true;
+ }
+
+ pcaps[i].pattrs = kcalloc(j, sizeof(struct powercap_attr),
+ GFP_KERNEL);
+ if (!pcaps[i].pattrs)
+ goto out_pcaps_pattrs;
+
+ pcaps[i].pg.attrs = kcalloc(j + 1, sizeof(struct attribute *),
+ GFP_KERNEL);
+ if (!pcaps[i].pg.attrs) {
+ kfree(pcaps[i].pattrs);
+ goto out_pcaps_pattrs;
+ }
+
+ j = 0;
+ pcaps[i].pg.name = node->name;
+ if (has_min) {
+ powercap_add_attr(min, "powercap-min",
+ &pcaps[i].pattrs[j]);
+ pcaps[i].pg.attrs[j] = &pcaps[i].pattrs[j].attr.attr;
+ j++;
+ }
+
+ if (has_max) {
+ powercap_add_attr(max, "powercap-max",
+ &pcaps[i].pattrs[j]);
+ pcaps[i].pg.attrs[j] = &pcaps[i].pattrs[j].attr.attr;
+ j++;
+ }
+
+ if (has_cur) {
+ powercap_add_attr(cur, "powercap-current",
+ &pcaps[i].pattrs[j]);
+ pcaps[i].pattrs[j].attr.attr.mode |= 0220;
+ pcaps[i].pattrs[j].attr.store = powercap_store;
+ pcaps[i].pg.attrs[j] = &pcaps[i].pattrs[j].attr.attr;
+ j++;
+ }
+
+ if (sysfs_create_group(powercap_kobj, &pcaps[i].pg)) {
+ pr_warn("Failed to create powercap attribute group %s\n",
+ pcaps[i].pg.name);
+ goto out_pcaps_pattrs;
+ }
+ i++;
+ }
+
+ return;
+
+out_pcaps_pattrs:
+ while (--i >= 0) {
+ kfree(pcaps[i].pattrs);
+ kfree(pcaps[i].pg.attrs);
+ }
+ kobject_put(powercap_kobj);
+out_pcaps:
+ kfree(pcaps);
+}
diff --git a/arch/powerpc/platforms/powernv/opal-prd.c b/arch/powerpc/platforms/powernv/opal-prd.c
index 2d6ee1c5ad85..de4dd09f4a15 100644
--- a/arch/powerpc/platforms/powernv/opal-prd.c
+++ b/arch/powerpc/platforms/powernv/opal-prd.c
@@ -241,15 +241,9 @@ static ssize_t opal_prd_write(struct file *file, const char __user *buf,
size = be16_to_cpu(hdr.size);
- msg = kmalloc(size, GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
-
- rc = copy_from_user(msg, buf, size);
- if (rc) {
- size = -EFAULT;
- goto out_free;
- }
+ msg = memdup_user(buf, size);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
rc = opal_prd_msg(msg);
if (rc) {
@@ -257,7 +251,6 @@ static ssize_t opal_prd_write(struct file *file, const char __user *buf,
size = -EIO;
}
-out_free:
kfree(msg);
return size;
diff --git a/arch/powerpc/platforms/powernv/opal-psr.c b/arch/powerpc/platforms/powernv/opal-psr.c
new file mode 100644
index 000000000000..7313b7fc9071
--- /dev/null
+++ b/arch/powerpc/platforms/powernv/opal-psr.c
@@ -0,0 +1,175 @@
+/*
+ * PowerNV OPAL Power-Shift-Ratio interface
+ *
+ * Copyright 2017 IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#define pr_fmt(fmt) "opal-psr: " fmt
+
+#include <linux/of.h>
+#include <linux/kobject.h>
+#include <linux/slab.h>
+
+#include <asm/opal.h>
+
+DEFINE_MUTEX(psr_mutex);
+
+static struct kobject *psr_kobj;
+
+struct psr_attr {
+ u32 handle;
+ struct kobj_attribute attr;
+} *psr_attrs;
+
+static ssize_t psr_show(struct kobject *kobj, struct kobj_attribute *attr,
+ char *buf)
+{
+ struct psr_attr *psr_attr = container_of(attr, struct psr_attr, attr);
+ struct opal_msg msg;
+ int psr, ret, token;
+
+ token = opal_async_get_token_interruptible();
+ if (token < 0) {
+ pr_devel("Failed to get token\n");
+ return token;
+ }
+
+ ret = mutex_lock_interruptible(&psr_mutex);
+ if (ret)
+ goto out_token;
+
+ ret = opal_get_power_shift_ratio(psr_attr->handle, token,
+ (u32 *)__pa(&psr));
+ switch (ret) {
+ case OPAL_ASYNC_COMPLETION:
+ ret = opal_async_wait_response(token, &msg);
+ if (ret) {
+ pr_devel("Failed to wait for the async response\n");
+ ret = -EIO;
+ goto out;
+ }
+ ret = opal_error_code(opal_get_async_rc(msg));
+ if (!ret) {
+ ret = sprintf(buf, "%u\n", be32_to_cpu(psr));
+ if (ret < 0)
+ ret = -EIO;
+ }
+ break;
+ case OPAL_SUCCESS:
+ ret = sprintf(buf, "%u\n", be32_to_cpu(psr));
+ if (ret < 0)
+ ret = -EIO;
+ break;
+ default:
+ ret = opal_error_code(ret);
+ }
+
+out:
+ mutex_unlock(&psr_mutex);
+out_token:
+ opal_async_release_token(token);
+ return ret;
+}
+
+static ssize_t psr_store(struct kobject *kobj, struct kobj_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct psr_attr *psr_attr = container_of(attr, struct psr_attr, attr);
+ struct opal_msg msg;
+ int psr, ret, token;
+
+ ret = kstrtoint(buf, 0, &psr);
+ if (ret)
+ return ret;
+
+ token = opal_async_get_token_interruptible();
+ if (token < 0) {
+ pr_devel("Failed to get token\n");
+ return token;
+ }
+
+ ret = mutex_lock_interruptible(&psr_mutex);
+ if (ret)
+ goto out_token;
+
+ ret = opal_set_power_shift_ratio(psr_attr->handle, token, psr);
+ switch (ret) {
+ case OPAL_ASYNC_COMPLETION:
+ ret = opal_async_wait_response(token, &msg);
+ if (ret) {
+ pr_devel("Failed to wait for the async response\n");
+ ret = -EIO;
+ goto out;
+ }
+ ret = opal_error_code(opal_get_async_rc(msg));
+ if (!ret)
+ ret = count;
+ break;
+ case OPAL_SUCCESS:
+ ret = count;
+ break;
+ default:
+ ret = opal_error_code(ret);
+ }
+
+out:
+ mutex_unlock(&psr_mutex);
+out_token:
+ opal_async_release_token(token);
+ return ret;
+}
+
+void __init opal_psr_init(void)
+{
+ struct device_node *psr, *node;
+ int i = 0;
+
+ psr = of_find_compatible_node(NULL, NULL,
+ "ibm,opal-power-shift-ratio");
+ if (!psr) {
+ pr_devel("Power-shift-ratio node not found\n");
+ return;
+ }
+
+ psr_attrs = kcalloc(of_get_child_count(psr), sizeof(struct psr_attr),
+ GFP_KERNEL);
+ if (!psr_attrs)
+ return;
+
+ psr_kobj = kobject_create_and_add("psr", opal_kobj);
+ if (!psr_kobj) {
+ pr_warn("Failed to create psr kobject\n");
+ goto out;
+ }
+
+ for_each_child_of_node(psr, node) {
+ if (of_property_read_u32(node, "handle",
+ &psr_attrs[i].handle))
+ goto out_kobj;
+
+ sysfs_attr_init(&psr_attrs[i].attr.attr);
+ if (of_property_read_string(node, "label",
+ &psr_attrs[i].attr.attr.name))
+ goto out_kobj;
+ psr_attrs[i].attr.attr.mode = 0664;
+ psr_attrs[i].attr.show = psr_show;
+ psr_attrs[i].attr.store = psr_store;
+ if (sysfs_create_file(psr_kobj, &psr_attrs[i].attr.attr)) {
+ pr_devel("Failed to create psr sysfs file %s\n",
+ psr_attrs[i].attr.attr.name);
+ goto out_kobj;
+ }
+ i++;
+ }
+
+ return;
+out_kobj:
+ kobject_put(psr_kobj);
+out:
+ kfree(psr_attrs);
+}
diff --git a/arch/powerpc/platforms/powernv/opal-sensor-groups.c b/arch/powerpc/platforms/powernv/opal-sensor-groups.c
new file mode 100644
index 000000000000..7e5a235ebf76
--- /dev/null
+++ b/arch/powerpc/platforms/powernv/opal-sensor-groups.c
@@ -0,0 +1,212 @@
+/*
+ * PowerNV OPAL Sensor-groups interface
+ *
+ * Copyright 2017 IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#define pr_fmt(fmt) "opal-sensor-groups: " fmt
+
+#include <linux/of.h>
+#include <linux/kobject.h>
+#include <linux/slab.h>
+
+#include <asm/opal.h>
+
+DEFINE_MUTEX(sg_mutex);
+
+static struct kobject *sg_kobj;
+
+struct sg_attr {
+ u32 handle;
+ struct kobj_attribute attr;
+};
+
+static struct sensor_group {
+ char name[20];
+ struct attribute_group sg;
+ struct sg_attr *sgattrs;
+} *sgs;
+
+static ssize_t sg_store(struct kobject *kobj, struct kobj_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct sg_attr *sattr = container_of(attr, struct sg_attr, attr);
+ struct opal_msg msg;
+ u32 data;
+ int ret, token;
+
+ ret = kstrtoint(buf, 0, &data);
+ if (ret)
+ return ret;
+
+ if (data != 1)
+ return -EINVAL;
+
+ token = opal_async_get_token_interruptible();
+ if (token < 0) {
+ pr_devel("Failed to get token\n");
+ return token;
+ }
+
+ ret = mutex_lock_interruptible(&sg_mutex);
+ if (ret)
+ goto out_token;
+
+ ret = opal_sensor_group_clear(sattr->handle, token);
+ switch (ret) {
+ case OPAL_ASYNC_COMPLETION:
+ ret = opal_async_wait_response(token, &msg);
+ if (ret) {
+ pr_devel("Failed to wait for the async response\n");
+ ret = -EIO;
+ goto out;
+ }
+ ret = opal_error_code(opal_get_async_rc(msg));
+ if (!ret)
+ ret = count;
+ break;
+ case OPAL_SUCCESS:
+ ret = count;
+ break;
+ default:
+ ret = opal_error_code(ret);
+ }
+
+out:
+ mutex_unlock(&sg_mutex);
+out_token:
+ opal_async_release_token(token);
+ return ret;
+}
+
+static struct sg_ops_info {
+ int opal_no;
+ const char *attr_name;
+ ssize_t (*store)(struct kobject *kobj, struct kobj_attribute *attr,
+ const char *buf, size_t count);
+} ops_info[] = {
+ { OPAL_SENSOR_GROUP_CLEAR, "clear", sg_store },
+};
+
+static void add_attr(int handle, struct sg_attr *attr, int index)
+{
+ attr->handle = handle;
+ sysfs_attr_init(&attr->attr.attr);
+ attr->attr.attr.name = ops_info[index].attr_name;
+ attr->attr.attr.mode = 0220;
+ attr->attr.store = ops_info[index].store;
+}
+
+static int add_attr_group(const __be32 *ops, int len, struct sensor_group *sg,
+ u32 handle)
+{
+ int i, j;
+ int count = 0;
+
+ for (i = 0; i < len; i++)
+ for (j = 0; j < ARRAY_SIZE(ops_info); j++)
+ if (be32_to_cpu(ops[i]) == ops_info[j].opal_no) {
+ add_attr(handle, &sg->sgattrs[count], j);
+ sg->sg.attrs[count] =
+ &sg->sgattrs[count].attr.attr;
+ count++;
+ }
+
+ return sysfs_create_group(sg_kobj, &sg->sg);
+}
+
+static int get_nr_attrs(const __be32 *ops, int len)
+{
+ int i, j;
+ int nr_attrs = 0;
+
+ for (i = 0; i < len; i++)
+ for (j = 0; j < ARRAY_SIZE(ops_info); j++)
+ if (be32_to_cpu(ops[i]) == ops_info[j].opal_no)
+ nr_attrs++;
+
+ return nr_attrs;
+}
+
+void __init opal_sensor_groups_init(void)
+{
+ struct device_node *sg, *node;
+ int i = 0;
+
+ sg = of_find_compatible_node(NULL, NULL, "ibm,opal-sensor-group");
+ if (!sg) {
+ pr_devel("Sensor groups node not found\n");
+ return;
+ }
+
+ sgs = kcalloc(of_get_child_count(sg), sizeof(*sgs), GFP_KERNEL);
+ if (!sgs)
+ return;
+
+ sg_kobj = kobject_create_and_add("sensor_groups", opal_kobj);
+ if (!sg_kobj) {
+ pr_warn("Failed to create sensor group kobject\n");
+ goto out_sgs;
+ }
+
+ for_each_child_of_node(sg, node) {
+ const __be32 *ops;
+ u32 sgid, len, nr_attrs, chipid;
+
+ ops = of_get_property(node, "ops", &len);
+ if (!ops)
+ continue;
+
+ nr_attrs = get_nr_attrs(ops, len);
+ if (!nr_attrs)
+ continue;
+
+ sgs[i].sgattrs = kcalloc(nr_attrs, sizeof(struct sg_attr),
+ GFP_KERNEL);
+ if (!sgs[i].sgattrs)
+ goto out_sgs_sgattrs;
+
+ sgs[i].sg.attrs = kcalloc(nr_attrs + 1,
+ sizeof(struct attribute *),
+ GFP_KERNEL);
+
+ if (!sgs[i].sg.attrs) {
+ kfree(sgs[i].sgattrs);
+ goto out_sgs_sgattrs;
+ }
+
+ if (of_property_read_u32(node, "sensor-group-id", &sgid)) {
+ pr_warn("sensor-group-id property not found\n");
+ goto out_sgs_sgattrs;
+ }
+
+ if (!of_property_read_u32(node, "ibm,chip-id", &chipid))
+ sprintf(sgs[i].name, "%s%d", node->name, chipid);
+ else
+ sprintf(sgs[i].name, "%s", node->name);
+
+ sgs[i].sg.name = sgs[i].name;
+ if (add_attr_group(ops, len, &sgs[i], sgid)) {
+ pr_warn("Failed to create sensor attribute group %s\n",
+ sgs[i].sg.name);
+ goto out_sgs_sgattrs;
+ }
+ i++;
+ }
+
+ return;
+
+out_sgs_sgattrs:
+ while (--i >= 0) {
+ kfree(sgs[i].sgattrs);
+ kfree(sgs[i].sg.attrs);
+ }
+ kobject_put(sg_kobj);
+out_sgs:
+ kfree(sgs);
+}
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
index f620572f891f..8c1ede2d3f7e 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S
@@ -27,7 +27,7 @@
.globl opal_tracepoint_refcount
opal_tracepoint_refcount:
- .llong 0
+ .8byte 0
.section ".text"
@@ -99,10 +99,10 @@ opal_return:
lwz r4,8(r1);
ld r5,PPC_LR_STKOFF(r1);
ld r6,PACASAVEDMSR(r13);
- mtspr SPRN_SRR0,r5;
- mtspr SPRN_SRR1,r6;
mtcr r4;
- rfid
+ mtspr SPRN_HSRR0,r5;
+ mtspr SPRN_HSRR1,r6;
+ hrfid
opal_real_call:
mfcr r11
@@ -310,3 +310,12 @@ OPAL_CALL(opal_xive_dump, OPAL_XIVE_DUMP);
OPAL_CALL(opal_npu_init_context, OPAL_NPU_INIT_CONTEXT);
OPAL_CALL(opal_npu_destroy_context, OPAL_NPU_DESTROY_CONTEXT);
OPAL_CALL(opal_npu_map_lpar, OPAL_NPU_MAP_LPAR);
+OPAL_CALL(opal_imc_counters_init, OPAL_IMC_COUNTERS_INIT);
+OPAL_CALL(opal_imc_counters_start, OPAL_IMC_COUNTERS_START);
+OPAL_CALL(opal_imc_counters_stop, OPAL_IMC_COUNTERS_STOP);
+OPAL_CALL(opal_pci_set_p2p, OPAL_PCI_SET_P2P);
+OPAL_CALL(opal_get_powercap, OPAL_GET_POWERCAP);
+OPAL_CALL(opal_set_powercap, OPAL_SET_POWERCAP);
+OPAL_CALL(opal_get_power_shift_ratio, OPAL_GET_POWER_SHIFT_RATIO);
+OPAL_CALL(opal_set_power_shift_ratio, OPAL_SET_POWER_SHIFT_RATIO);
+OPAL_CALL(opal_sensor_group_clear, OPAL_SENSOR_GROUP_CLEAR);
diff --git a/arch/powerpc/platforms/powernv/opal-xscom.c b/arch/powerpc/platforms/powernv/opal-xscom.c
index 28651fb25417..81c0a943dea9 100644
--- a/arch/powerpc/platforms/powernv/opal-xscom.c
+++ b/arch/powerpc/platforms/powernv/opal-xscom.c
@@ -36,14 +36,14 @@ static scom_map_t opal_scom_map(struct device_node *dev, u64 reg, u64 count)
const __be32 *gcid;
if (!of_get_property(dev, "scom-controller", NULL)) {
- pr_err("%s: device %s is not a SCOM controller\n",
- __func__, dev->full_name);
+ pr_err("%s: device %pOF is not a SCOM controller\n",
+ __func__, dev);
return SCOM_MAP_INVALID;
}
gcid = of_get_property(dev, "ibm,chip-id", NULL);
if (!gcid) {
- pr_err("%s: device %s has no ibm,chip-id\n",
- __func__, dev->full_name);
+ pr_err("%s: device %pOF has no ibm,chip-id\n",
+ __func__, dev);
return SCOM_MAP_INVALID;
}
m = kmalloc(sizeof(struct opal_scom_map), GFP_KERNEL);
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 59684b4af4d1..65c79ecf5a4d 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -16,6 +16,7 @@
#include <linux/of.h>
#include <linux/of_fdt.h>
#include <linux/of_platform.h>
+#include <linux/of_address.h>
#include <linux/interrupt.h>
#include <linux/notifier.h>
#include <linux/slab.h>
@@ -25,11 +26,17 @@
#include <linux/memblock.h>
#include <linux/kthread.h>
#include <linux/freezer.h>
+#include <linux/printk.h>
+#include <linux/kmsg_dump.h>
+#include <linux/console.h>
+#include <linux/sched/debug.h>
#include <asm/machdep.h>
#include <asm/opal.h>
#include <asm/firmware.h>
#include <asm/mce.h>
+#include <asm/imc-pmu.h>
+#include <asm/bug.h>
#include "powernv.h"
@@ -59,6 +66,8 @@ static struct task_struct *kopald_tsk;
void opal_configure_cores(void)
{
+ u64 reinit_flags = 0;
+
/* Do the actual re-init, This will clobber all FPRs, VRs, etc...
*
* It will preserve non volatile GPRs and HSPRG0/1. It will
@@ -66,11 +75,24 @@ void opal_configure_cores(void)
* but it might clobber a bunch.
*/
#ifdef __BIG_ENDIAN__
- opal_reinit_cpus(OPAL_REINIT_CPUS_HILE_BE);
+ reinit_flags |= OPAL_REINIT_CPUS_HILE_BE;
#else
- opal_reinit_cpus(OPAL_REINIT_CPUS_HILE_LE);
+ reinit_flags |= OPAL_REINIT_CPUS_HILE_LE;
#endif
+ /*
+ * POWER9 always support running hash:
+ * ie. Host hash supports hash guests
+ * Host radix supports hash/radix guests
+ */
+ if (early_cpu_has_feature(CPU_FTR_ARCH_300)) {
+ reinit_flags |= OPAL_REINIT_CPUS_MMU_HASH;
+ if (early_radix_enabled())
+ reinit_flags |= OPAL_REINIT_CPUS_MMU_RADIX;
+ }
+
+ opal_reinit_cpus(reinit_flags);
+
/* Restore some bits */
if (cur_cpu_spec->cpu_restore)
cur_cpu_spec->cpu_restore();
@@ -147,12 +169,9 @@ int __init early_init_dt_scan_recoverable_ranges(unsigned long node,
sizeof(struct mcheck_recoverable_range);
/*
- * Allocate a buffer to hold the MC recoverable ranges. We would be
- * accessing them in real mode, hence it needs to be within
- * RMO region.
+ * Allocate a buffer to hold the MC recoverable ranges.
*/
- mc_recoverable_range =__va(memblock_alloc_base(size, __alignof__(u64),
- ppc64_rma_size));
+ mc_recoverable_range =__va(memblock_alloc(size, __alignof__(u64)));
memset(mc_recoverable_range, 0, size);
for (i = 0; i < mc_recoverable_range_len; i++) {
@@ -407,24 +426,88 @@ static int opal_recover_mce(struct pt_regs *regs,
/* Fatal machine check */
pr_err("Machine check interrupt is fatal\n");
recovered = 0;
- } else if ((evt->severity == MCE_SEV_ERROR_SYNC) &&
- (user_mode(regs) && !is_global_init(current))) {
+ }
+
+ if (!recovered && evt->severity == MCE_SEV_ERROR_SYNC) {
/*
- * For now, kill the task if we have received exception when
- * in userspace.
+ * Try to kill processes if we get a synchronous machine check
+ * (e.g., one caused by execution of this instruction). This
+ * will devolve into a panic if we try to kill init or are in
+ * an interrupt etc.
*
* TODO: Queue up this address for hwpoisioning later.
+ * TODO: This is not quite right for d-side machine
+ * checks ->nip is not necessarily the important
+ * address.
*/
- _exception(SIGBUS, regs, BUS_MCEERR_AR, regs->nip);
- recovered = 1;
+ if ((user_mode(regs))) {
+ _exception(SIGBUS, regs, BUS_MCEERR_AR, regs->nip);
+ recovered = 1;
+ } else if (die_will_crash()) {
+ /*
+ * die() would kill the kernel, so better to go via
+ * the platform reboot code that will log the
+ * machine check.
+ */
+ recovered = 0;
+ } else {
+ die("Machine check", regs, SIGBUS);
+ recovered = 1;
+ }
}
+
return recovered;
}
+void pnv_platform_error_reboot(struct pt_regs *regs, const char *msg)
+{
+ /*
+ * This is mostly taken from kernel/panic.c, but tries to do
+ * relatively minimal work. Don't use delay functions (TB may
+ * be broken), don't crash dump (need to set a firmware log),
+ * don't run notifiers. We do want to get some information to
+ * Linux console.
+ */
+ console_verbose();
+ bust_spinlocks(1);
+ pr_emerg("Hardware platform error: %s\n", msg);
+ if (regs)
+ show_regs(regs);
+ smp_send_stop();
+ printk_safe_flush_on_panic();
+ kmsg_dump(KMSG_DUMP_PANIC);
+ bust_spinlocks(0);
+ debug_locks_off();
+ console_flush_on_panic();
+
+ /*
+ * Don't bother to shut things down because this will
+ * xstop the system.
+ */
+ if (opal_cec_reboot2(OPAL_REBOOT_PLATFORM_ERROR, msg)
+ == OPAL_UNSUPPORTED) {
+ pr_emerg("Reboot type %d not supported for %s\n",
+ OPAL_REBOOT_PLATFORM_ERROR, msg);
+ }
+
+ /*
+ * We reached here. There can be three possibilities:
+ * 1. We are running on a firmware level that do not support
+ * opal_cec_reboot2()
+ * 2. We are running on a firmware level that do not support
+ * OPAL_REBOOT_PLATFORM_ERROR reboot type.
+ * 3. We are running on FSP based system that does not need
+ * opal to trigger checkstop explicitly for error analysis.
+ * The FSP PRD component would have already got notified
+ * about this error through other channels.
+ */
+
+ ppc_md.restart(NULL);
+}
+
int opal_machine_check(struct pt_regs *regs)
{
struct machine_check_event evt;
- int ret;
if (!get_mce_event(&evt, MCE_EVENT_RELEASE))
return 0;
@@ -440,43 +523,7 @@ int opal_machine_check(struct pt_regs *regs)
if (opal_recover_mce(regs, &evt))
return 1;
- /*
- * Unrecovered machine check, we are heading to panic path.
- *
- * We may have hit this MCE in very early stage of kernel
- * initialization even before opal-prd has started running. If
- * this is the case then this MCE error may go un-noticed or
- * un-analyzed if we go down panic path. We need to inform
- * BMC/OCC about this error so that they can collect relevant
- * data for error analysis before rebooting.
- * Use opal_cec_reboot2(OPAL_REBOOT_PLATFORM_ERROR) to do so.
- * This function may not return on BMC based system.
- */
- ret = opal_cec_reboot2(OPAL_REBOOT_PLATFORM_ERROR,
- "Unrecoverable Machine Check exception");
- if (ret == OPAL_UNSUPPORTED) {
- pr_emerg("Reboot type %d not supported\n",
- OPAL_REBOOT_PLATFORM_ERROR);
- }
-
- /*
- * We reached here. There can be three possibilities:
- * 1. We are running on a firmware level that do not support
- * opal_cec_reboot2()
- * 2. We are running on a firmware level that do not support
- * OPAL_REBOOT_PLATFORM_ERROR reboot type.
- * 3. We are running on FSP based system that does not need opal
- * to trigger checkstop explicitly for error analysis. The FSP
- * PRD component would have already got notified about this
- * error through other channels.
- *
- * If hardware marked this as an unrecoverable MCE, we are
- * going to panic anyway. Even if it didn't, it's not safe to
- * continue at this point, so we should explicitly panic.
- */
-
- panic("PowerNV Unrecovered Machine Check");
- return 0;
+ pnv_platform_error_reboot(regs, "Unrecoverable Machine Check exception");
}
/* Early hmi handler called in real mode. */
@@ -705,6 +752,15 @@ static void opal_pdev_init(const char *compatible)
of_platform_device_create(np, NULL, NULL);
}
+static void __init opal_imc_init_dev(void)
+{
+ struct device_node *np;
+
+ np = of_find_compatible_node(NULL, NULL, IMC_DTB_COMPAT);
+ if (np)
+ of_platform_device_create(np, NULL, NULL);
+}
+
static int kopald(void *unused)
{
unsigned long timeout = msecs_to_jiffies(opal_heartbeat) + 1;
@@ -778,6 +834,9 @@ static int __init opal_init(void)
/* Setup a heatbeat thread if requested by OPAL */
opal_init_heartbeat();
+ /* Detect In-Memory Collection counters and create devices*/
+ opal_imc_init_dev();
+
/* Create leds platform devices */
leds = of_find_node_by_path("/ibm,opal/leds");
if (leds) {
@@ -821,6 +880,15 @@ static int __init opal_init(void)
/* Initialise OPAL kmsg dumper for flushing console on panic */
opal_kmsg_init();
+ /* Initialise OPAL powercap interface */
+ opal_powercap_init();
+
+ /* Initialise OPAL Power-Shifting-Ratio interface */
+ opal_psr_init();
+
+ /* Initialise OPAL sensor groups */
+ opal_sensor_groups_init();
+
return 0;
}
machine_subsys_initcall(powernv, opal_init);
@@ -937,6 +1005,7 @@ int opal_error_code(int rc)
case OPAL_UNSUPPORTED: return -EIO;
case OPAL_HARDWARE: return -EIO;
case OPAL_INTERNAL_ERROR: return -EIO;
+ case OPAL_TIMEOUT: return -ETIMEDOUT;
default:
pr_err("%s: unexpected OPAL error %d\n", __func__, rc);
return -EIO;
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 283caf1070c9..57f9e55f4352 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -444,8 +444,8 @@ static void __init pnv_ioda_parse_m64_window(struct pnv_phb *phb)
r = of_get_property(dn, "ibm,opal-m64-window", NULL);
if (!r) {
- pr_info(" No <ibm,opal-m64-window> on %s\n",
- dn->full_name);
+ pr_info(" No <ibm,opal-m64-window> on %pOF\n",
+ dn);
return;
}
@@ -1408,7 +1408,6 @@ m64_failed:
static long pnv_pci_ioda2_unset_window(struct iommu_table_group *table_group,
int num);
-static void pnv_pci_ioda2_set_bypass(struct pnv_ioda_pe *pe, bool enable);
static void pnv_pci_ioda2_release_dma_pe(struct pci_dev *dev, struct pnv_ioda_pe *pe)
{
@@ -1718,6 +1717,100 @@ static void pnv_pci_ioda_dma_dev_setup(struct pnv_phb *phb, struct pci_dev *pdev
*/
}
+static bool pnv_pci_ioda_pe_single_vendor(struct pnv_ioda_pe *pe)
+{
+ unsigned short vendor = 0;
+ struct pci_dev *pdev;
+
+ if (pe->device_count == 1)
+ return true;
+
+ /* pe->pdev should be set if it's a single device, pe->pbus if not */
+ if (!pe->pbus)
+ return true;
+
+ list_for_each_entry(pdev, &pe->pbus->devices, bus_list) {
+ if (!vendor) {
+ vendor = pdev->vendor;
+ continue;
+ }
+
+ if (pdev->vendor != vendor)
+ return false;
+ }
+
+ return true;
+}
+
+/*
+ * Reconfigure TVE#0 to be usable as 64-bit DMA space.
+ *
+ * The first 4GB of virtual memory for a PE is reserved for 32-bit accesses.
+ * Devices can only access more than that if bit 59 of the PCI address is set
+ * by hardware, which indicates TVE#1 should be used instead of TVE#0.
+ * Many PCI devices are not capable of addressing that many bits, and as a
+ * result are limited to the 4GB of virtual memory made available to 32-bit
+ * devices in TVE#0.
+ *
+ * In order to work around this, reconfigure TVE#0 to be suitable for 64-bit
+ * devices by configuring the virtual memory past the first 4GB inaccessible
+ * by 64-bit DMAs. This should only be used by devices that want more than
+ * 4GB, and only on PEs that have no 32-bit devices.
+ *
+ * Currently this will only work on PHB3 (POWER8).
+ */
+static int pnv_pci_ioda_dma_64bit_bypass(struct pnv_ioda_pe *pe)
+{
+ u64 window_size, table_size, tce_count, addr;
+ struct page *table_pages;
+ u64 tce_order = 28; /* 256MB TCEs */
+ __be64 *tces;
+ s64 rc;
+
+ /*
+ * Window size needs to be a power of two, but needs to account for
+ * shifting memory by the 4GB offset required to skip 32bit space.
+ */
+ window_size = roundup_pow_of_two(memory_hotplug_max() + (1ULL << 32));
+ tce_count = window_size >> tce_order;
+ table_size = tce_count << 3;
+
+ if (table_size < PAGE_SIZE)
+ table_size = PAGE_SIZE;
+
+ table_pages = alloc_pages_node(pe->phb->hose->node, GFP_KERNEL,
+ get_order(table_size));
+ if (!table_pages)
+ goto err;
+
+ tces = page_address(table_pages);
+ if (!tces)
+ goto err;
+
+ memset(tces, 0, table_size);
+
+ for (addr = 0; addr < memory_hotplug_max(); addr += (1 << tce_order)) {
+ tces[(addr + (1ULL << 32)) >> tce_order] =
+ cpu_to_be64(addr | TCE_PCI_READ | TCE_PCI_WRITE);
+ }
+
+ rc = opal_pci_map_pe_dma_window(pe->phb->opal_id,
+ pe->pe_number,
+ /* reconfigure window 0 */
+ (pe->pe_number << 1) + 0,
+ 1,
+ __pa(tces),
+ table_size,
+ 1 << tce_order);
+ if (rc == OPAL_SUCCESS) {
+ pe_info(pe, "Using 64-bit DMA iommu bypass (through TVE#0)\n");
+ return 0;
+ }
+err:
+ pe_err(pe, "Error configuring 64-bit DMA bypass\n");
+ return -EIO;
+}
+
static int pnv_pci_ioda_dma_set_mask(struct pci_dev *pdev, u64 dma_mask)
{
struct pci_controller *hose = pci_bus_to_host(pdev->bus);
@@ -1726,6 +1819,7 @@ static int pnv_pci_ioda_dma_set_mask(struct pci_dev *pdev, u64 dma_mask)
struct pnv_ioda_pe *pe;
uint64_t top;
bool bypass = false;
+ s64 rc;
if (WARN_ON(!pdn || pdn->pe_number == IODA_INVALID_PE))
return -ENODEV;;
@@ -1740,8 +1834,35 @@ static int pnv_pci_ioda_dma_set_mask(struct pci_dev *pdev, u64 dma_mask)
dev_info(&pdev->dev, "Using 64-bit DMA iommu bypass\n");
set_dma_ops(&pdev->dev, &dma_direct_ops);
} else {
- dev_info(&pdev->dev, "Using 32-bit DMA via iommu\n");
- set_dma_ops(&pdev->dev, &dma_iommu_ops);
+ /*
+ * If the device can't set the TCE bypass bit but still wants
+ * to access 4GB or more, on PHB3 we can reconfigure TVE#0 to
+ * bypass the 32-bit region and be usable for 64-bit DMAs.
+ * The device needs to be able to address all of this space.
+ */
+ if (dma_mask >> 32 &&
+ dma_mask > (memory_hotplug_max() + (1ULL << 32)) &&
+ pnv_pci_ioda_pe_single_vendor(pe) &&
+ phb->model == PNV_PHB_MODEL_PHB3) {
+ /* Configure the bypass mode */
+ rc = pnv_pci_ioda_dma_64bit_bypass(pe);
+ if (rc)
+ return rc;
+ /* 4GB offset bypasses 32-bit space */
+ set_dma_offset(&pdev->dev, (1ULL << 32));
+ set_dma_ops(&pdev->dev, &dma_direct_ops);
+ } else if (dma_mask >> 32 && dma_mask != DMA_BIT_MASK(64)) {
+ /*
+ * Fail the request if a DMA mask between 32 and 64 bits
+ * was requested but couldn't be fulfilled. Ideally we
+ * would do this for 64-bits but historically we have
+ * always fallen back to 32-bits.
+ */
+ return -ENOMEM;
+ } else {
+ dev_info(&pdev->dev, "Using 32-bit DMA via iommu\n");
+ set_dma_ops(&pdev->dev, &dma_iommu_ops);
+ }
}
*pdev->dev.dma_mask = dma_mask;
@@ -2280,7 +2401,7 @@ static long pnv_pci_ioda2_set_window(struct iommu_table_group *table_group,
return 0;
}
-static void pnv_pci_ioda2_set_bypass(struct pnv_ioda_pe *pe, bool enable)
+void pnv_pci_ioda2_set_bypass(struct pnv_ioda_pe *pe, bool enable)
{
uint16_t window_id = (pe->pe_number << 1 ) + 1;
int64_t rc;
@@ -3123,13 +3244,13 @@ static int pnv_pci_diag_data_set(void *data, u64 val)
phb = hose->private_data;
/* Retrieve the diag data from firmware */
- ret = opal_pci_get_phb_diag_data2(phb->opal_id, phb->diag.blob,
- PNV_PCI_DIAG_BUF_SIZE);
+ ret = opal_pci_get_phb_diag_data2(phb->opal_id, phb->diag_data,
+ phb->diag_data_size);
if (ret != OPAL_SUCCESS)
return -EIO;
/* Print the diag data to the kernel log */
- pnv_pci_dump_phb_diag_data(phb->hose, phb->diag.blob);
+ pnv_pci_dump_phb_diag_data(phb->hose, phb->diag_data);
return 0;
}
@@ -3675,8 +3796,7 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
if (!of_device_is_available(np))
return;
- pr_info("Initializing %s PHB (%s)\n",
- pnv_phb_names[ioda_type], of_node_full_name(np));
+ pr_info("Initializing %s PHB (%pOF)\n", pnv_phb_names[ioda_type], np);
prop64 = of_get_property(np, "ibm,opal-phbid", NULL);
if (!prop64) {
@@ -3691,8 +3811,8 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
/* Allocate PCI controller */
phb->hose = hose = pcibios_alloc_controller(np);
if (!phb->hose) {
- pr_err(" Can't allocate PCI controller for %s\n",
- np->full_name);
+ pr_err(" Can't allocate PCI controller for %pOF\n",
+ np);
memblock_free(__pa(phb), sizeof(struct pnv_phb));
return;
}
@@ -3703,7 +3823,7 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
hose->first_busno = be32_to_cpu(prop32[0]);
hose->last_busno = be32_to_cpu(prop32[1]);
} else {
- pr_warn(" Broken <bus-range> on %s\n", np->full_name);
+ pr_warn(" Broken <bus-range> on %pOF\n", np);
hose->first_busno = 0;
hose->last_busno = 0xff;
}
@@ -3725,6 +3845,15 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
else
phb->model = PNV_PHB_MODEL_UNKNOWN;
+ /* Initialize diagnostic data buffer */
+ prop32 = of_get_property(np, "ibm,phb-diag-data-size", NULL);
+ if (prop32)
+ phb->diag_data_size = be32_to_cpup(prop32);
+ else
+ phb->diag_data_size = PNV_PCI_DIAG_BUF_SIZE;
+
+ phb->diag_data = memblock_virt_alloc(phb->diag_data_size, 0);
+
/* Parse 32-bit and IO ranges (if any) */
pci_process_bridge_OF_ranges(hose, np, !hose->global_number);
@@ -3915,7 +4044,7 @@ void __init pnv_pci_init_ioda_hub(struct device_node *np)
const __be64 *prop64;
u64 hub_id;
- pr_info("Probing IODA IO-Hub %s\n", np->full_name);
+ pr_info("Probing IODA IO-Hub %pOF\n", np);
prop64 = of_get_property(np, "ibm,opal-hubid", NULL);
if (!prop64) {
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index 935ccb249a8a..5422f4a6317c 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -37,6 +37,8 @@
#include "powernv.h"
#include "pci.h"
+static DEFINE_MUTEX(p2p_mutex);
+
int pnv_pci_get_slot_id(struct device_node *np, uint64_t *id)
{
struct device_node *parent = np;
@@ -227,11 +229,39 @@ void pnv_teardown_msi_irqs(struct pci_dev *pdev)
}
#endif /* CONFIG_PCI_MSI */
+/* Nicely print the contents of the PE State Tables (PEST). */
+static void pnv_pci_dump_pest(__be64 pestA[], __be64 pestB[], int pest_size)
+{
+ __be64 prevA = ULONG_MAX, prevB = ULONG_MAX;
+ bool dup = false;
+ int i;
+
+ for (i = 0; i < pest_size; i++) {
+ __be64 peA = be64_to_cpu(pestA[i]);
+ __be64 peB = be64_to_cpu(pestB[i]);
+
+ if (peA != prevA || peB != prevB) {
+ if (dup) {
+ pr_info("PE[..%03x] A/B: as above\n", i-1);
+ dup = false;
+ }
+ prevA = peA;
+ prevB = peB;
+ if (peA & PNV_IODA_STOPPED_STATE ||
+ peB & PNV_IODA_STOPPED_STATE)
+ pr_info("PE[%03x] A/B: %016llx %016llx\n",
+ i, peA, peB);
+ } else if (!dup && (peA & PNV_IODA_STOPPED_STATE ||
+ peB & PNV_IODA_STOPPED_STATE)) {
+ dup = true;
+ }
+ }
+}
+
static void pnv_pci_dump_p7ioc_diag_data(struct pci_controller *hose,
struct OpalIoPhbErrorCommon *common)
{
struct OpalIoP7IOCPhbErrorData *data;
- int i;
data = (struct OpalIoP7IOCPhbErrorData *)common;
pr_info("P7IOC PHB#%x Diag-data (Version: %d)\n",
@@ -308,22 +338,13 @@ static void pnv_pci_dump_p7ioc_diag_data(struct pci_controller *hose,
be64_to_cpu(data->dma1ErrorLog0),
be64_to_cpu(data->dma1ErrorLog1));
- for (i = 0; i < OPAL_P7IOC_NUM_PEST_REGS; i++) {
- if ((be64_to_cpu(data->pestA[i]) >> 63) == 0 &&
- (be64_to_cpu(data->pestB[i]) >> 63) == 0)
- continue;
-
- pr_info("PE[%3d] A/B: %016llx %016llx\n",
- i, be64_to_cpu(data->pestA[i]),
- be64_to_cpu(data->pestB[i]));
- }
+ pnv_pci_dump_pest(data->pestA, data->pestB, OPAL_P7IOC_NUM_PEST_REGS);
}
static void pnv_pci_dump_phb3_diag_data(struct pci_controller *hose,
struct OpalIoPhbErrorCommon *common)
{
struct OpalIoPhb3ErrorData *data;
- int i;
data = (struct OpalIoPhb3ErrorData*)common;
pr_info("PHB3 PHB#%x Diag-data (Version: %d)\n",
@@ -404,15 +425,109 @@ static void pnv_pci_dump_phb3_diag_data(struct pci_controller *hose,
be64_to_cpu(data->dma1ErrorLog0),
be64_to_cpu(data->dma1ErrorLog1));
- for (i = 0; i < OPAL_PHB3_NUM_PEST_REGS; i++) {
- if ((be64_to_cpu(data->pestA[i]) >> 63) == 0 &&
- (be64_to_cpu(data->pestB[i]) >> 63) == 0)
- continue;
+ pnv_pci_dump_pest(data->pestA, data->pestB, OPAL_PHB3_NUM_PEST_REGS);
+}
- pr_info("PE[%3d] A/B: %016llx %016llx\n",
- i, be64_to_cpu(data->pestA[i]),
- be64_to_cpu(data->pestB[i]));
- }
+static void pnv_pci_dump_phb4_diag_data(struct pci_controller *hose,
+ struct OpalIoPhbErrorCommon *common)
+{
+ struct OpalIoPhb4ErrorData *data;
+
+ data = (struct OpalIoPhb4ErrorData*)common;
+ pr_info("PHB4 PHB#%d Diag-data (Version: %d)\n",
+ hose->global_number, be32_to_cpu(common->version));
+ if (data->brdgCtl)
+ pr_info("brdgCtl: %08x\n",
+ be32_to_cpu(data->brdgCtl));
+ if (data->deviceStatus || data->slotStatus ||
+ data->linkStatus || data->devCmdStatus ||
+ data->devSecStatus)
+ pr_info("RootSts: %08x %08x %08x %08x %08x\n",
+ be32_to_cpu(data->deviceStatus),
+ be32_to_cpu(data->slotStatus),
+ be32_to_cpu(data->linkStatus),
+ be32_to_cpu(data->devCmdStatus),
+ be32_to_cpu(data->devSecStatus));
+ if (data->rootErrorStatus || data->uncorrErrorStatus ||
+ data->corrErrorStatus)
+ pr_info("RootErrSts: %08x %08x %08x\n",
+ be32_to_cpu(data->rootErrorStatus),
+ be32_to_cpu(data->uncorrErrorStatus),
+ be32_to_cpu(data->corrErrorStatus));
+ if (data->tlpHdr1 || data->tlpHdr2 ||
+ data->tlpHdr3 || data->tlpHdr4)
+ pr_info("RootErrLog: %08x %08x %08x %08x\n",
+ be32_to_cpu(data->tlpHdr1),
+ be32_to_cpu(data->tlpHdr2),
+ be32_to_cpu(data->tlpHdr3),
+ be32_to_cpu(data->tlpHdr4));
+ if (data->sourceId)
+ pr_info("sourceId: %08x\n", be32_to_cpu(data->sourceId));
+ if (data->nFir)
+ pr_info("nFir: %016llx %016llx %016llx\n",
+ be64_to_cpu(data->nFir),
+ be64_to_cpu(data->nFirMask),
+ be64_to_cpu(data->nFirWOF));
+ if (data->phbPlssr || data->phbCsr)
+ pr_info("PhbSts: %016llx %016llx\n",
+ be64_to_cpu(data->phbPlssr),
+ be64_to_cpu(data->phbCsr));
+ if (data->lemFir)
+ pr_info("Lem: %016llx %016llx %016llx\n",
+ be64_to_cpu(data->lemFir),
+ be64_to_cpu(data->lemErrorMask),
+ be64_to_cpu(data->lemWOF));
+ if (data->phbErrorStatus)
+ pr_info("PhbErr: %016llx %016llx %016llx %016llx\n",
+ be64_to_cpu(data->phbErrorStatus),
+ be64_to_cpu(data->phbFirstErrorStatus),
+ be64_to_cpu(data->phbErrorLog0),
+ be64_to_cpu(data->phbErrorLog1));
+ if (data->phbTxeErrorStatus)
+ pr_info("PhbTxeErr: %016llx %016llx %016llx %016llx\n",
+ be64_to_cpu(data->phbTxeErrorStatus),
+ be64_to_cpu(data->phbTxeFirstErrorStatus),
+ be64_to_cpu(data->phbTxeErrorLog0),
+ be64_to_cpu(data->phbTxeErrorLog1));
+ if (data->phbRxeArbErrorStatus)
+ pr_info("RxeArbErr: %016llx %016llx %016llx %016llx\n",
+ be64_to_cpu(data->phbRxeArbErrorStatus),
+ be64_to_cpu(data->phbRxeArbFirstErrorStatus),
+ be64_to_cpu(data->phbRxeArbErrorLog0),
+ be64_to_cpu(data->phbRxeArbErrorLog1));
+ if (data->phbRxeMrgErrorStatus)
+ pr_info("RxeMrgErr: %016llx %016llx %016llx %016llx\n",
+ be64_to_cpu(data->phbRxeMrgErrorStatus),
+ be64_to_cpu(data->phbRxeMrgFirstErrorStatus),
+ be64_to_cpu(data->phbRxeMrgErrorLog0),
+ be64_to_cpu(data->phbRxeMrgErrorLog1));
+ if (data->phbRxeTceErrorStatus)
+ pr_info("RxeTceErr: %016llx %016llx %016llx %016llx\n",
+ be64_to_cpu(data->phbRxeTceErrorStatus),
+ be64_to_cpu(data->phbRxeTceFirstErrorStatus),
+ be64_to_cpu(data->phbRxeTceErrorLog0),
+ be64_to_cpu(data->phbRxeTceErrorLog1));
+
+ if (data->phbPblErrorStatus)
+ pr_info("PblErr: %016llx %016llx %016llx %016llx\n",
+ be64_to_cpu(data->phbPblErrorStatus),
+ be64_to_cpu(data->phbPblFirstErrorStatus),
+ be64_to_cpu(data->phbPblErrorLog0),
+ be64_to_cpu(data->phbPblErrorLog1));
+ if (data->phbPcieDlpErrorStatus)
+ pr_info("PcieDlp: %016llx %016llx %016llx\n",
+ be64_to_cpu(data->phbPcieDlpErrorLog1),
+ be64_to_cpu(data->phbPcieDlpErrorLog2),
+ be64_to_cpu(data->phbPcieDlpErrorStatus));
+ if (data->phbRegbErrorStatus)
+ pr_info("RegbErr: %016llx %016llx %016llx %016llx\n",
+ be64_to_cpu(data->phbRegbErrorStatus),
+ be64_to_cpu(data->phbRegbFirstErrorStatus),
+ be64_to_cpu(data->phbRegbErrorLog0),
+ be64_to_cpu(data->phbRegbErrorLog1));
+
+
+ pnv_pci_dump_pest(data->pestA, data->pestB, OPAL_PHB4_NUM_PEST_REGS);
}
void pnv_pci_dump_phb_diag_data(struct pci_controller *hose,
@@ -431,6 +546,9 @@ void pnv_pci_dump_phb_diag_data(struct pci_controller *hose,
case OPAL_PHB_ERROR_DATA_TYPE_PHB3:
pnv_pci_dump_phb3_diag_data(hose, common);
break;
+ case OPAL_PHB_ERROR_DATA_TYPE_PHB4:
+ pnv_pci_dump_phb4_diag_data(hose, common);
+ break;
default:
pr_warn("%s: Unrecognized ioType %d\n",
__func__, be32_to_cpu(common->ioType));
@@ -445,8 +563,8 @@ static void pnv_pci_handle_eeh_config(struct pnv_phb *phb, u32 pe_no)
spin_lock_irqsave(&phb->lock, flags);
/* Fetch PHB diag-data */
- rc = opal_pci_get_phb_diag_data2(phb->opal_id, phb->diag.blob,
- PNV_PCI_DIAG_BUF_SIZE);
+ rc = opal_pci_get_phb_diag_data2(phb->opal_id, phb->diag_data,
+ phb->diag_data_size);
has_diag = (rc == OPAL_SUCCESS);
/* If PHB supports compound PE, to handle it */
@@ -474,7 +592,7 @@ static void pnv_pci_handle_eeh_config(struct pnv_phb *phb, u32 pe_no)
* with the normal errors generated when probing empty slots
*/
if (has_diag && ret)
- pnv_pci_dump_phb_diag_data(phb->hose, phb->diag.blob);
+ pnv_pci_dump_phb_diag_data(phb->hose, phb->diag_data);
spin_unlock_irqrestore(&phb->lock, flags);
}
@@ -901,6 +1019,79 @@ void pnv_pci_dma_bus_setup(struct pci_bus *bus)
}
}
+int pnv_pci_set_p2p(struct pci_dev *initiator, struct pci_dev *target, u64 desc)
+{
+ struct pci_controller *hose;
+ struct pnv_phb *phb_init, *phb_target;
+ struct pnv_ioda_pe *pe_init;
+ int rc;
+
+ if (!opal_check_token(OPAL_PCI_SET_P2P))
+ return -ENXIO;
+
+ hose = pci_bus_to_host(initiator->bus);
+ phb_init = hose->private_data;
+
+ hose = pci_bus_to_host(target->bus);
+ phb_target = hose->private_data;
+
+ pe_init = pnv_ioda_get_pe(initiator);
+ if (!pe_init)
+ return -ENODEV;
+
+ /*
+ * Configuring the initiator's PHB requires to adjust its
+ * TVE#1 setting. Since the same device can be an initiator
+ * several times for different target devices, we need to keep
+ * a reference count to know when we can restore the default
+ * bypass setting on its TVE#1 when disabling. Opal is not
+ * tracking PE states, so we add a reference count on the PE
+ * in linux.
+ *
+ * For the target, the configuration is per PHB, so we keep a
+ * target reference count on the PHB.
+ */
+ mutex_lock(&p2p_mutex);
+
+ if (desc & OPAL_PCI_P2P_ENABLE) {
+ /* always go to opal to validate the configuration */
+ rc = opal_pci_set_p2p(phb_init->opal_id, phb_target->opal_id,
+ desc, pe_init->pe_number);
+
+ if (rc != OPAL_SUCCESS) {
+ rc = -EIO;
+ goto out;
+ }
+
+ pe_init->p2p_initiator_count++;
+ phb_target->p2p_target_count++;
+ } else {
+ if (!pe_init->p2p_initiator_count ||
+ !phb_target->p2p_target_count) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ if (--pe_init->p2p_initiator_count == 0)
+ pnv_pci_ioda2_set_bypass(pe_init, true);
+
+ if (--phb_target->p2p_target_count == 0) {
+ rc = opal_pci_set_p2p(phb_init->opal_id,
+ phb_target->opal_id, desc,
+ pe_init->pe_number);
+ if (rc != OPAL_SUCCESS) {
+ rc = -EIO;
+ goto out;
+ }
+ }
+ }
+ rc = 0;
+out:
+ mutex_unlock(&p2p_mutex);
+ return rc;
+}
+EXPORT_SYMBOL_GPL(pnv_pci_set_p2p);
+
void pnv_pci_shutdown(void)
{
struct pci_controller *hose;
diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h
index 18c8a2fa03b8..a95273c524f6 100644
--- a/arch/powerpc/platforms/powernv/pci.h
+++ b/arch/powerpc/platforms/powernv/pci.h
@@ -33,6 +33,9 @@ enum pnv_phb_model {
#define PNV_IODA_PE_SLAVE (1 << 4) /* Slave PE in compound case */
#define PNV_IODA_PE_VF (1 << 5) /* PE for one VF */
+/* Indicates operations are frozen for a PE: MMIO in PESTA & DMA in PESTB. */
+#define PNV_IODA_STOPPED_STATE 0x8000000000000000
+
/* Data associated with a PE, including IOMMU tracking etc.. */
struct pnv_phb;
struct pnv_ioda_pe {
@@ -75,6 +78,9 @@ struct pnv_ioda_pe {
struct pnv_ioda_pe *master;
struct list_head slaves;
+ /* PCI peer-to-peer*/
+ int p2p_initiator_count;
+
/* Link in list of PE#s */
struct list_head list;
};
@@ -169,13 +175,9 @@ struct pnv_phb {
unsigned int pe_rmap[0x10000];
} ioda;
- /* PHB and hub status structure */
- union {
- unsigned char blob[PNV_PCI_DIAG_BUF_SIZE];
- struct OpalIoP7IOCPhbErrorData p7ioc;
- struct OpalIoPhb3ErrorData phb3;
- struct OpalIoP7IOCErrorData hub_diag;
- } diag;
+ /* PHB and hub diagnostics */
+ unsigned int diag_data_size;
+ u8 *diag_data;
/* Nvlink2 data */
struct npu {
@@ -190,6 +192,7 @@ struct pnv_phb {
#ifdef CONFIG_CXL_BASE
struct cxl_afu *cxl_afu;
#endif
+ int p2p_target_count;
};
extern struct pci_ops pnv_pci_ops;
@@ -230,6 +233,7 @@ extern void pnv_teardown_msi_irqs(struct pci_dev *pdev);
extern struct pnv_ioda_pe *pnv_ioda_get_pe(struct pci_dev *dev);
extern void pnv_set_msi_irq_chip(struct pnv_phb *phb, unsigned int virq);
extern bool pnv_pci_enable_device_hook(struct pci_dev *dev);
+extern void pnv_pci_ioda2_set_bypass(struct pnv_ioda_pe *pe, bool enable);
extern void pe_level_printk(const struct pnv_ioda_pe *pe, const char *level,
const char *fmt, ...);
diff --git a/arch/powerpc/platforms/powernv/powernv.h b/arch/powerpc/platforms/powernv/powernv.h
index 6dbc0a1da1f6..a159d48573d7 100644
--- a/arch/powerpc/platforms/powernv/powernv.h
+++ b/arch/powerpc/platforms/powernv/powernv.h
@@ -7,6 +7,8 @@ extern void pnv_smp_init(void);
static inline void pnv_smp_init(void) { }
#endif
+extern void pnv_platform_error_reboot(struct pt_regs *regs, const char *msg) __noreturn;
+
struct pci_dev;
#ifdef CONFIG_PCI
diff --git a/arch/powerpc/platforms/powernv/rng.c b/arch/powerpc/platforms/powernv/rng.c
index 1a9d84371a4d..718f50ed22f1 100644
--- a/arch/powerpc/platforms/powernv/rng.c
+++ b/arch/powerpc/platforms/powernv/rng.c
@@ -16,11 +16,13 @@
#include <linux/slab.h>
#include <linux/smp.h>
#include <asm/archrandom.h>
+#include <asm/cputable.h>
#include <asm/io.h>
#include <asm/prom.h>
#include <asm/machdep.h>
#include <asm/smp.h>
+#define DARN_ERR 0xFFFFFFFFFFFFFFFFul
struct powernv_rng {
void __iomem *regs;
@@ -67,6 +69,41 @@ int powernv_get_random_real_mode(unsigned long *v)
return 1;
}
+int powernv_get_random_darn(unsigned long *v)
+{
+ unsigned long val;
+
+ /* Using DARN with L=1 - 64-bit conditioned random number */
+ asm volatile(PPC_DARN(%0, 1) : "=r"(val));
+
+ if (val == DARN_ERR)
+ return 0;
+
+ *v = val;
+
+ return 1;
+}
+
+static int initialise_darn(void)
+{
+ unsigned long val;
+ int i;
+
+ if (!cpu_has_feature(CPU_FTR_ARCH_300))
+ return -ENODEV;
+
+ for (i = 0; i < 10; i++) {
+ if (powernv_get_random_darn(&val)) {
+ ppc_md.get_random_seed = powernv_get_random_darn;
+ return 0;
+ }
+ }
+
+ pr_warn("Unable to use DARN for get_random_seed()\n");
+
+ return -EIO;
+}
+
int powernv_get_random_long(unsigned long *v)
{
struct powernv_rng *rng;
@@ -88,7 +125,7 @@ static __init void rng_init_per_cpu(struct powernv_rng *rng,
chip_id = of_get_ibm_chip_id(dn);
if (chip_id == -1)
- pr_warn("No ibm,chip-id found for %s.\n", dn->full_name);
+ pr_warn("No ibm,chip-id found for %pOF.\n", dn);
for_each_possible_cpu(cpu) {
if (per_cpu(powernv_rng, cpu) == NULL ||
@@ -141,8 +178,8 @@ static __init int rng_init(void)
for_each_compatible_node(dn, NULL, "ibm,power-rng") {
rc = rng_create(dn);
if (rc) {
- pr_err("Failed creating rng for %s (%d).\n",
- dn->full_name, rc);
+ pr_err("Failed creating rng for %pOF (%d).\n",
+ dn, rc);
continue;
}
@@ -150,6 +187,8 @@ static __init int rng_init(void)
of_platform_device_create(dn, NULL, NULL);
}
+ initialise_darn();
+
return 0;
}
machine_subsys_initcall(powernv, rng_init);
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c
index 2dc7e5fb86c3..bbb73aa0eb8f 100644
--- a/arch/powerpc/platforms/powernv/setup.c
+++ b/arch/powerpc/platforms/powernv/setup.c
@@ -225,6 +225,8 @@ static void pnv_kexec_wait_secondaries_down(void)
static void pnv_kexec_cpu_down(int crash_shutdown, int secondary)
{
+ u64 reinit_flags;
+
if (xive_enabled())
xive_kexec_teardown_cpu(secondary);
else
@@ -254,8 +256,15 @@ static void pnv_kexec_cpu_down(int crash_shutdown, int secondary)
* We might be running as little-endian - now that interrupts
* are disabled, reset the HILE bit to big-endian so we don't
* take interrupts in the wrong endian later
+ *
+ * We reinit to enable both radix and hash on P9 to ensure
+ * the mode used by the next kernel is always supported.
*/
- opal_reinit_cpus(OPAL_REINIT_CPUS_HILE_BE);
+ reinit_flags = OPAL_REINIT_CPUS_HILE_BE;
+ if (cpu_has_feature(CPU_FTR_ARCH_300))
+ reinit_flags |= OPAL_REINIT_CPUS_MMU_RADIX |
+ OPAL_REINIT_CPUS_MMU_HASH;
+ opal_reinit_cpus(reinit_flags);
}
}
#endif /* CONFIG_KEXEC_CORE */
@@ -263,7 +272,15 @@ static void pnv_kexec_cpu_down(int crash_shutdown, int secondary)
#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
static unsigned long pnv_memory_block_size(void)
{
- return 256UL * 1024 * 1024;
+ /*
+ * We map the kernel linear region with 1GB large pages on radix. For
+ * memory hot unplug to work our memory block size must be at least
+ * this size.
+ */
+ if (radix_enabled())
+ return 1UL * 1024 * 1024 * 1024;
+ else
+ return 256UL * 1024 * 1024;
}
#endif
diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c
index 4aff754b6f2c..c17f81e433f7 100644
--- a/arch/powerpc/platforms/powernv/smp.c
+++ b/arch/powerpc/platforms/powernv/smp.c
@@ -57,14 +57,16 @@ static void pnv_smp_setup_cpu(int cpu)
static int pnv_smp_kick_cpu(int nr)
{
- unsigned int pcpu = get_hard_smp_processor_id(nr);
+ unsigned int pcpu;
unsigned long start_here =
__pa(ppc_function_entry(generic_secondary_smp_init));
long rc;
uint8_t status;
- BUG_ON(nr < 0 || nr >= NR_CPUS);
+ if (nr < 0 || nr >= nr_cpu_ids)
+ return -EINVAL;
+ pcpu = get_hard_smp_processor_id(nr);
/*
* If we already started or OPAL is not supported, we just
* kick the CPU via the PACA
@@ -144,7 +146,14 @@ static void pnv_smp_cpu_kill_self(void)
unsigned long srr1, wmask;
/* Standard hot unplug procedure */
- local_irq_disable();
+ /*
+ * This hard disables local interurpts, ensuring we have no lazy
+ * irqs pending.
+ */
+ WARN_ON(irqs_disabled());
+ hard_irq_disable();
+ WARN_ON(lazy_irq_pending());
+
idle_task_exit();
current->active_mm = NULL; /* for sanity */
cpu = smp_processor_id();
@@ -156,22 +165,6 @@ static void pnv_smp_cpu_kill_self(void)
if (cpu_has_feature(CPU_FTR_ARCH_207S))
wmask = SRR1_WAKEMASK_P8;
- /* We don't want to take decrementer interrupts while we are offline,
- * so clear LPCR:PECE1. We keep PECE2 (and LPCR_PECE_HVEE on P9)
- * enabled as to let IPIs in.
- */
- mtspr(SPRN_LPCR, mfspr(SPRN_LPCR) & ~(u64)LPCR_PECE1);
-
- /*
- * Hard-disable interrupts, and then clear irq_happened flags
- * that we can safely ignore while off-line, since they
- * are for things for which we do no processing when off-line
- * (or in the case of HMI, all the processing we need to do
- * is done in lower-level real-mode code).
- */
- hard_irq_disable();
- local_paca->irq_happened &= ~(PACA_IRQ_DEC | PACA_IRQ_HMI);
-
while (!generic_check_cpu_restart(cpu)) {
/*
* Clear IPI flag, since we don't handle IPIs while
@@ -182,9 +175,9 @@ static void pnv_smp_cpu_kill_self(void)
*/
kvmppc_set_host_ipi(cpu, 0);
- ppc64_runlatch_off();
srr1 = pnv_cpu_offline(cpu);
- ppc64_runlatch_on();
+
+ WARN_ON(lazy_irq_pending());
/*
* If the SRR1 value indicates that we woke up due to
@@ -198,8 +191,7 @@ static void pnv_smp_cpu_kill_self(void)
* contains 0.
*/
if (((srr1 & wmask) == SRR1_WAKEEE) ||
- ((srr1 & wmask) == SRR1_WAKEHVI) ||
- (local_paca->irq_happened & PACA_IRQ_EE)) {
+ ((srr1 & wmask) == SRR1_WAKEHVI)) {
if (cpu_has_feature(CPU_FTR_ARCH_300)) {
if (xive_enabled())
xive_flush_interrupt();
@@ -211,18 +203,17 @@ static void pnv_smp_cpu_kill_self(void)
unsigned long msg = PPC_DBELL_TYPE(PPC_DBELL_SERVER);
asm volatile(PPC_MSGCLR(%0) : : "r" (msg));
}
- local_paca->irq_happened &= ~(PACA_IRQ_EE | PACA_IRQ_DBELL);
smp_mb();
if (cpu_core_split_required())
continue;
if (srr1 && !generic_check_cpu_restart(cpu))
- DBG("CPU%d Unexpected exit while offline !\n", cpu);
+ DBG("CPU%d Unexpected exit while offline srr1=%lx!\n",
+ cpu, srr1);
+
}
- /* Re-enable decrementer interrupts */
- mtspr(SPRN_LPCR, mfspr(SPRN_LPCR) | LPCR_PECE1);
DBG("CPU%d coming online...\n", cpu);
}
diff --git a/arch/powerpc/platforms/powernv/subcore.c b/arch/powerpc/platforms/powernv/subcore.c
index 8c6119280c13..596ae2e98040 100644
--- a/arch/powerpc/platforms/powernv/subcore.c
+++ b/arch/powerpc/platforms/powernv/subcore.c
@@ -18,6 +18,7 @@
#include <linux/stop_machine.h>
#include <asm/cputhreads.h>
+#include <asm/cpuidle.h>
#include <asm/kvm_ppc.h>
#include <asm/machdep.h>
#include <asm/opal.h>
@@ -182,7 +183,7 @@ static void unsplit_core(void)
cpu = smp_processor_id();
if (cpu_thread_in_core(cpu) != 0) {
while (mfspr(SPRN_HID0) & mask)
- power7_nap(0);
+ power7_idle_insn(PNV_THREAD_NAP);
per_cpu(split_state, cpu).step = SYNC_STEP_UNSPLIT;
return;
@@ -348,7 +349,7 @@ static int set_subcores_per_core(int new_mode)
state->master = 0;
}
- get_online_cpus();
+ cpus_read_lock();
/* This cpu will update the globals before exiting stop machine */
this_cpu_ptr(&split_state)->master = 1;
@@ -356,9 +357,10 @@ static int set_subcores_per_core(int new_mode)
/* Ensure state is consistent before we call the other cpus */
mb();
- stop_machine(cpu_update_split_mode, &new_mode, cpu_online_mask);
+ stop_machine_cpuslocked(cpu_update_split_mode, &new_mode,
+ cpu_online_mask);
- put_online_cpus();
+ cpus_read_unlock();
return 0;
}
diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch/powerpc/platforms/powernv/vas-window.c
new file mode 100644
index 000000000000..5aae845b8cd9
--- /dev/null
+++ b/arch/powerpc/platforms/powernv/vas-window.c
@@ -0,0 +1,1134 @@
+/*
+ * Copyright 2016-17 IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#define pr_fmt(fmt) "vas: " fmt
+
+#include <linux/types.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/log2.h>
+#include <linux/rcupdate.h>
+#include <linux/cred.h>
+
+#include "vas.h"
+#include "copy-paste.h"
+
+/*
+ * Compute the paste address region for the window @window using the
+ * ->paste_base_addr and ->paste_win_id_shift we got from device tree.
+ */
+static void compute_paste_address(struct vas_window *window, u64 *addr, int *len)
+{
+ int winid;
+ u64 base, shift;
+
+ base = window->vinst->paste_base_addr;
+ shift = window->vinst->paste_win_id_shift;
+ winid = window->winid;
+
+ *addr = base + (winid << shift);
+ if (len)
+ *len = PAGE_SIZE;
+
+ pr_debug("Txwin #%d: Paste addr 0x%llx\n", winid, *addr);
+}
+
+static inline void get_hvwc_mmio_bar(struct vas_window *window,
+ u64 *start, int *len)
+{
+ u64 pbaddr;
+
+ pbaddr = window->vinst->hvwc_bar_start;
+ *start = pbaddr + window->winid * VAS_HVWC_SIZE;
+ *len = VAS_HVWC_SIZE;
+}
+
+static inline void get_uwc_mmio_bar(struct vas_window *window,
+ u64 *start, int *len)
+{
+ u64 pbaddr;
+
+ pbaddr = window->vinst->uwc_bar_start;
+ *start = pbaddr + window->winid * VAS_UWC_SIZE;
+ *len = VAS_UWC_SIZE;
+}
+
+/*
+ * Map the paste bus address of the given send window into kernel address
+ * space. Unlike MMIO regions (map_mmio_region() below), paste region must
+ * be mapped cache-able and is only applicable to send windows.
+ */
+static void *map_paste_region(struct vas_window *txwin)
+{
+ int len;
+ void *map;
+ char *name;
+ u64 start;
+
+ name = kasprintf(GFP_KERNEL, "window-v%d-w%d", txwin->vinst->vas_id,
+ txwin->winid);
+ if (!name)
+ goto free_name;
+
+ txwin->paste_addr_name = name;
+ compute_paste_address(txwin, &start, &len);
+
+ if (!request_mem_region(start, len, name)) {
+ pr_devel("%s(): request_mem_region(0x%llx, %d) failed\n",
+ __func__, start, len);
+ goto free_name;
+ }
+
+ map = ioremap_cache(start, len);
+ if (!map) {
+ pr_devel("%s(): ioremap_cache(0x%llx, %d) failed\n", __func__,
+ start, len);
+ goto free_name;
+ }
+
+ pr_devel("Mapped paste addr 0x%llx to kaddr 0x%p\n", start, map);
+ return map;
+
+free_name:
+ kfree(name);
+ return ERR_PTR(-ENOMEM);
+}
+
+static void *map_mmio_region(char *name, u64 start, int len)
+{
+ void *map;
+
+ if (!request_mem_region(start, len, name)) {
+ pr_devel("%s(): request_mem_region(0x%llx, %d) failed\n",
+ __func__, start, len);
+ return NULL;
+ }
+
+ map = ioremap(start, len);
+ if (!map) {
+ pr_devel("%s(): ioremap(0x%llx, %d) failed\n", __func__, start,
+ len);
+ return NULL;
+ }
+
+ return map;
+}
+
+static void unmap_region(void *addr, u64 start, int len)
+{
+ iounmap(addr);
+ release_mem_region((phys_addr_t)start, len);
+}
+
+/*
+ * Unmap the paste address region for a window.
+ */
+static void unmap_paste_region(struct vas_window *window)
+{
+ int len;
+ u64 busaddr_start;
+
+ if (window->paste_kaddr) {
+ compute_paste_address(window, &busaddr_start, &len);
+ unmap_region(window->paste_kaddr, busaddr_start, len);
+ window->paste_kaddr = NULL;
+ kfree(window->paste_addr_name);
+ window->paste_addr_name = NULL;
+ }
+}
+
+/*
+ * Unmap the MMIO regions for a window.
+ */
+static void unmap_winctx_mmio_bars(struct vas_window *window)
+{
+ int len;
+ u64 busaddr_start;
+
+ if (window->hvwc_map) {
+ get_hvwc_mmio_bar(window, &busaddr_start, &len);
+ unmap_region(window->hvwc_map, busaddr_start, len);
+ window->hvwc_map = NULL;
+ }
+
+ if (window->uwc_map) {
+ get_uwc_mmio_bar(window, &busaddr_start, &len);
+ unmap_region(window->uwc_map, busaddr_start, len);
+ window->uwc_map = NULL;
+ }
+}
+
+/*
+ * Find the Hypervisor Window Context (HVWC) MMIO Base Address Region and the
+ * OS/User Window Context (UWC) MMIO Base Address Region for the given window.
+ * Map these bus addresses and save the mapped kernel addresses in @window.
+ */
+int map_winctx_mmio_bars(struct vas_window *window)
+{
+ int len;
+ u64 start;
+
+ get_hvwc_mmio_bar(window, &start, &len);
+ window->hvwc_map = map_mmio_region("HVWCM_Window", start, len);
+
+ get_uwc_mmio_bar(window, &start, &len);
+ window->uwc_map = map_mmio_region("UWCM_Window", start, len);
+
+ if (!window->hvwc_map || !window->uwc_map) {
+ unmap_winctx_mmio_bars(window);
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * Reset all valid registers in the HV and OS/User Window Contexts for
+ * the window identified by @window.
+ *
+ * NOTE: We cannot really use a for loop to reset window context. Not all
+ * offsets in a window context are valid registers and the valid
+ * registers are not sequential. And, we can only write to offsets
+ * with valid registers.
+ */
+void reset_window_regs(struct vas_window *window)
+{
+ write_hvwc_reg(window, VREG(LPID), 0ULL);
+ write_hvwc_reg(window, VREG(PID), 0ULL);
+ write_hvwc_reg(window, VREG(XLATE_MSR), 0ULL);
+ write_hvwc_reg(window, VREG(XLATE_LPCR), 0ULL);
+ write_hvwc_reg(window, VREG(XLATE_CTL), 0ULL);
+ write_hvwc_reg(window, VREG(AMR), 0ULL);
+ write_hvwc_reg(window, VREG(SEIDR), 0ULL);
+ write_hvwc_reg(window, VREG(FAULT_TX_WIN), 0ULL);
+ write_hvwc_reg(window, VREG(OSU_INTR_SRC_RA), 0ULL);
+ write_hvwc_reg(window, VREG(HV_INTR_SRC_RA), 0ULL);
+ write_hvwc_reg(window, VREG(PSWID), 0ULL);
+ write_hvwc_reg(window, VREG(LFIFO_BAR), 0ULL);
+ write_hvwc_reg(window, VREG(LDATA_STAMP_CTL), 0ULL);
+ write_hvwc_reg(window, VREG(LDMA_CACHE_CTL), 0ULL);
+ write_hvwc_reg(window, VREG(LRFIFO_PUSH), 0ULL);
+ write_hvwc_reg(window, VREG(CURR_MSG_COUNT), 0ULL);
+ write_hvwc_reg(window, VREG(LNOTIFY_AFTER_COUNT), 0ULL);
+ write_hvwc_reg(window, VREG(LRX_WCRED), 0ULL);
+ write_hvwc_reg(window, VREG(LRX_WCRED_ADDER), 0ULL);
+ write_hvwc_reg(window, VREG(TX_WCRED), 0ULL);
+ write_hvwc_reg(window, VREG(TX_WCRED_ADDER), 0ULL);
+ write_hvwc_reg(window, VREG(LFIFO_SIZE), 0ULL);
+ write_hvwc_reg(window, VREG(WINCTL), 0ULL);
+ write_hvwc_reg(window, VREG(WIN_STATUS), 0ULL);
+ write_hvwc_reg(window, VREG(WIN_CTX_CACHING_CTL), 0ULL);
+ write_hvwc_reg(window, VREG(TX_RSVD_BUF_COUNT), 0ULL);
+ write_hvwc_reg(window, VREG(LRFIFO_WIN_PTR), 0ULL);
+ write_hvwc_reg(window, VREG(LNOTIFY_CTL), 0ULL);
+ write_hvwc_reg(window, VREG(LNOTIFY_PID), 0ULL);
+ write_hvwc_reg(window, VREG(LNOTIFY_LPID), 0ULL);
+ write_hvwc_reg(window, VREG(LNOTIFY_TID), 0ULL);
+ write_hvwc_reg(window, VREG(LNOTIFY_SCOPE), 0ULL);
+ write_hvwc_reg(window, VREG(NX_UTIL_ADDER), 0ULL);
+
+ /* Skip read-only registers: NX_UTIL and NX_UTIL_SE */
+
+ /*
+ * The send and receive window credit adder registers are also
+ * accessible from HVWC and have been initialized above. We don't
+ * need to initialize from the OS/User Window Context, so skip
+ * following calls:
+ *
+ * write_uwc_reg(window, VREG(TX_WCRED_ADDER), 0ULL);
+ * write_uwc_reg(window, VREG(LRX_WCRED_ADDER), 0ULL);
+ */
+}
+
+/*
+ * Initialize window context registers related to Address Translation.
+ * These registers are common to send/receive windows although they
+ * differ for user/kernel windows. As we resolve the TODOs we may
+ * want to add fields to vas_winctx and move the initialization to
+ * init_vas_winctx_regs().
+ */
+static void init_xlate_regs(struct vas_window *window, bool user_win)
+{
+ u64 lpcr, val;
+
+ /*
+ * MSR_TA, MSR_US are false for both kernel and user.
+ * MSR_DR and MSR_PR are false for kernel.
+ */
+ val = 0ULL;
+ val = SET_FIELD(VAS_XLATE_MSR_HV, val, 1);
+ val = SET_FIELD(VAS_XLATE_MSR_SF, val, 1);
+ if (user_win) {
+ val = SET_FIELD(VAS_XLATE_MSR_DR, val, 1);
+ val = SET_FIELD(VAS_XLATE_MSR_PR, val, 1);
+ }
+ write_hvwc_reg(window, VREG(XLATE_MSR), val);
+
+ lpcr = mfspr(SPRN_LPCR);
+ val = 0ULL;
+ /*
+ * NOTE: From Section 5.7.8.1 Segment Lookaside Buffer of the
+ * Power ISA, v3.0B, Page size encoding is 0 = 4KB, 5 = 64KB.
+ *
+ * NOTE: From Section 1.3.1, Address Translation Context of the
+ * Nest MMU Workbook, LPCR_SC should be 0 for Power9.
+ */
+ val = SET_FIELD(VAS_XLATE_LPCR_PAGE_SIZE, val, 5);
+ val = SET_FIELD(VAS_XLATE_LPCR_ISL, val, lpcr & LPCR_ISL);
+ val = SET_FIELD(VAS_XLATE_LPCR_TC, val, lpcr & LPCR_TC);
+ val = SET_FIELD(VAS_XLATE_LPCR_SC, val, 0);
+ write_hvwc_reg(window, VREG(XLATE_LPCR), val);
+
+ /*
+ * Section 1.3.1 (Address translation Context) of NMMU workbook.
+ * 0b00 Hashed Page Table mode
+ * 0b01 Reserved
+ * 0b10 Radix on HPT
+ * 0b11 Radix on Radix
+ */
+ val = 0ULL;
+ val = SET_FIELD(VAS_XLATE_MODE, val, radix_enabled() ? 3 : 2);
+ write_hvwc_reg(window, VREG(XLATE_CTL), val);
+
+ /*
+ * TODO: Can we mfspr(AMR) even for user windows?
+ */
+ val = 0ULL;
+ val = SET_FIELD(VAS_AMR, val, mfspr(SPRN_AMR));
+ write_hvwc_reg(window, VREG(AMR), val);
+
+ val = 0ULL;
+ val = SET_FIELD(VAS_SEIDR, val, 0);
+ write_hvwc_reg(window, VREG(SEIDR), val);
+}
+
+/*
+ * Initialize Reserved Send Buffer Count for the send window. It involves
+ * writing to the register, reading it back to confirm that the hardware
+ * has enough buffers to reserve. See section 1.3.1.2.1 of VAS workbook.
+ *
+ * Since we can only make a best-effort attempt to fulfill the request,
+ * we don't return any errors if we cannot.
+ *
+ * TODO: Reserved (aka dedicated) send buffers are not supported yet.
+ */
+static void init_rsvd_tx_buf_count(struct vas_window *txwin,
+ struct vas_winctx *winctx)
+{
+ write_hvwc_reg(txwin, VREG(TX_RSVD_BUF_COUNT), 0ULL);
+}
+
+/*
+ * init_winctx_regs()
+ * Initialize window context registers for a receive window.
+ * Except for caching control and marking window open, the registers
+ * are initialized in the order listed in Section 3.1.4 (Window Context
+ * Cache Register Details) of the VAS workbook although they don't need
+ * to be.
+ *
+ * Design note: For NX receive windows, NX allocates the FIFO buffer in OPAL
+ * (so that it can get a large contiguous area) and passes that buffer
+ * to kernel via device tree. We now write that buffer address to the
+ * FIFO BAR. Would it make sense to do this all in OPAL? i.e have OPAL
+ * write the per-chip RX FIFO addresses to the windows during boot-up
+ * as a one-time task? That could work for NX but what about other
+ * receivers? Let the receivers tell us the rx-fifo buffers for now.
+ */
+int init_winctx_regs(struct vas_window *window, struct vas_winctx *winctx)
+{
+ u64 val;
+ int fifo_size;
+
+ reset_window_regs(window);
+
+ val = 0ULL;
+ val = SET_FIELD(VAS_LPID, val, winctx->lpid);
+ write_hvwc_reg(window, VREG(LPID), val);
+
+ val = 0ULL;
+ val = SET_FIELD(VAS_PID_ID, val, winctx->pidr);
+ write_hvwc_reg(window, VREG(PID), val);
+
+ init_xlate_regs(window, winctx->user_win);
+
+ val = 0ULL;
+ val = SET_FIELD(VAS_FAULT_TX_WIN, val, 0);
+ write_hvwc_reg(window, VREG(FAULT_TX_WIN), val);
+
+ /* In PowerNV, interrupts go to HV. */
+ write_hvwc_reg(window, VREG(OSU_INTR_SRC_RA), 0ULL);
+
+ val = 0ULL;
+ val = SET_FIELD(VAS_HV_INTR_SRC_RA, val, winctx->irq_port);
+ write_hvwc_reg(window, VREG(HV_INTR_SRC_RA), val);
+
+ val = 0ULL;
+ val = SET_FIELD(VAS_PSWID_EA_HANDLE, val, winctx->pswid);
+ write_hvwc_reg(window, VREG(PSWID), val);
+
+ write_hvwc_reg(window, VREG(SPARE1), 0ULL);
+ write_hvwc_reg(window, VREG(SPARE2), 0ULL);
+ write_hvwc_reg(window, VREG(SPARE3), 0ULL);
+
+ /*
+ * NOTE: VAS expects the FIFO address to be copied into the LFIFO_BAR
+ * register as is - do NOT shift the address into VAS_LFIFO_BAR
+ * bit fields! Ok to set the page migration select fields -
+ * VAS ignores the lower 10+ bits in the address anyway, because
+ * the minimum FIFO size is 1K?
+ *
+ * See also: Design note in function header.
+ */
+ val = __pa(winctx->rx_fifo);
+ val = SET_FIELD(VAS_PAGE_MIGRATION_SELECT, val, 0);
+ write_hvwc_reg(window, VREG(LFIFO_BAR), val);
+
+ val = 0ULL;
+ val = SET_FIELD(VAS_LDATA_STAMP, val, winctx->data_stamp);
+ write_hvwc_reg(window, VREG(LDATA_STAMP_CTL), val);
+
+ val = 0ULL;
+ val = SET_FIELD(VAS_LDMA_TYPE, val, winctx->dma_type);
+ val = SET_FIELD(VAS_LDMA_FIFO_DISABLE, val, winctx->fifo_disable);
+ write_hvwc_reg(window, VREG(LDMA_CACHE_CTL), val);
+
+ write_hvwc_reg(window, VREG(LRFIFO_PUSH), 0ULL);
+ write_hvwc_reg(window, VREG(CURR_MSG_COUNT), 0ULL);
+ write_hvwc_reg(window, VREG(LNOTIFY_AFTER_COUNT), 0ULL);
+
+ val = 0ULL;
+ val = SET_FIELD(VAS_LRX_WCRED, val, winctx->wcreds_max);
+ write_hvwc_reg(window, VREG(LRX_WCRED), val);
+
+ val = 0ULL;
+ val = SET_FIELD(VAS_TX_WCRED, val, winctx->wcreds_max);
+ write_hvwc_reg(window, VREG(TX_WCRED), val);
+
+ write_hvwc_reg(window, VREG(LRX_WCRED_ADDER), 0ULL);
+ write_hvwc_reg(window, VREG(TX_WCRED_ADDER), 0ULL);
+
+ fifo_size = winctx->rx_fifo_size / 1024;
+
+ val = 0ULL;
+ val = SET_FIELD(VAS_LFIFO_SIZE, val, ilog2(fifo_size));
+ write_hvwc_reg(window, VREG(LFIFO_SIZE), val);
+
+ /* Update window control and caching control registers last so
+ * we mark the window open only after fully initializing it and
+ * pushing context to cache.
+ */
+
+ write_hvwc_reg(window, VREG(WIN_STATUS), 0ULL);
+
+ init_rsvd_tx_buf_count(window, winctx);
+
+ /* for a send window, point to the matching receive window */
+ val = 0ULL;
+ val = SET_FIELD(VAS_LRX_WIN_ID, val, winctx->rx_win_id);
+ write_hvwc_reg(window, VREG(LRFIFO_WIN_PTR), val);
+
+ write_hvwc_reg(window, VREG(SPARE4), 0ULL);
+
+ val = 0ULL;
+ val = SET_FIELD(VAS_NOTIFY_DISABLE, val, winctx->notify_disable);
+ val = SET_FIELD(VAS_INTR_DISABLE, val, winctx->intr_disable);
+ val = SET_FIELD(VAS_NOTIFY_EARLY, val, winctx->notify_early);
+ val = SET_FIELD(VAS_NOTIFY_OSU_INTR, val, winctx->notify_os_intr_reg);
+ write_hvwc_reg(window, VREG(LNOTIFY_CTL), val);
+
+ val = 0ULL;
+ val = SET_FIELD(VAS_LNOTIFY_PID, val, winctx->lnotify_pid);
+ write_hvwc_reg(window, VREG(LNOTIFY_PID), val);
+
+ val = 0ULL;
+ val = SET_FIELD(VAS_LNOTIFY_LPID, val, winctx->lnotify_lpid);
+ write_hvwc_reg(window, VREG(LNOTIFY_LPID), val);
+
+ val = 0ULL;
+ val = SET_FIELD(VAS_LNOTIFY_TID, val, winctx->lnotify_tid);
+ write_hvwc_reg(window, VREG(LNOTIFY_TID), val);
+
+ val = 0ULL;
+ val = SET_FIELD(VAS_LNOTIFY_MIN_SCOPE, val, winctx->min_scope);
+ val = SET_FIELD(VAS_LNOTIFY_MAX_SCOPE, val, winctx->max_scope);
+ write_hvwc_reg(window, VREG(LNOTIFY_SCOPE), val);
+
+ /* Skip read-only registers NX_UTIL and NX_UTIL_SE */
+
+ write_hvwc_reg(window, VREG(SPARE5), 0ULL);
+ write_hvwc_reg(window, VREG(NX_UTIL_ADDER), 0ULL);
+ write_hvwc_reg(window, VREG(SPARE6), 0ULL);
+
+ /* Finally, push window context to memory and... */
+ val = 0ULL;
+ val = SET_FIELD(VAS_PUSH_TO_MEM, val, 1);
+ write_hvwc_reg(window, VREG(WIN_CTX_CACHING_CTL), val);
+
+ /* ... mark the window open for business */
+ val = 0ULL;
+ val = SET_FIELD(VAS_WINCTL_REJ_NO_CREDIT, val, winctx->rej_no_credit);
+ val = SET_FIELD(VAS_WINCTL_PIN, val, winctx->pin_win);
+ val = SET_FIELD(VAS_WINCTL_TX_WCRED_MODE, val, winctx->tx_wcred_mode);
+ val = SET_FIELD(VAS_WINCTL_RX_WCRED_MODE, val, winctx->rx_wcred_mode);
+ val = SET_FIELD(VAS_WINCTL_TX_WORD_MODE, val, winctx->tx_word_mode);
+ val = SET_FIELD(VAS_WINCTL_RX_WORD_MODE, val, winctx->rx_word_mode);
+ val = SET_FIELD(VAS_WINCTL_FAULT_WIN, val, winctx->fault_win);
+ val = SET_FIELD(VAS_WINCTL_NX_WIN, val, winctx->nx_win);
+ val = SET_FIELD(VAS_WINCTL_OPEN, val, 1);
+ write_hvwc_reg(window, VREG(WINCTL), val);
+
+ return 0;
+}
+
+static DEFINE_SPINLOCK(vas_ida_lock);
+
+static void vas_release_window_id(struct ida *ida, int winid)
+{
+ spin_lock(&vas_ida_lock);
+ ida_remove(ida, winid);
+ spin_unlock(&vas_ida_lock);
+}
+
+static int vas_assign_window_id(struct ida *ida)
+{
+ int rc, winid;
+
+ do {
+ rc = ida_pre_get(ida, GFP_KERNEL);
+ if (!rc)
+ return -EAGAIN;
+
+ spin_lock(&vas_ida_lock);
+ rc = ida_get_new(ida, &winid);
+ spin_unlock(&vas_ida_lock);
+ } while (rc == -EAGAIN);
+
+ if (rc)
+ return rc;
+
+ if (winid > VAS_WINDOWS_PER_CHIP) {
+ pr_err("Too many (%d) open windows\n", winid);
+ vas_release_window_id(ida, winid);
+ return -EAGAIN;
+ }
+
+ return winid;
+}
+
+static void vas_window_free(struct vas_window *window)
+{
+ int winid = window->winid;
+ struct vas_instance *vinst = window->vinst;
+
+ unmap_winctx_mmio_bars(window);
+ kfree(window);
+
+ vas_release_window_id(&vinst->ida, winid);
+}
+
+static struct vas_window *vas_window_alloc(struct vas_instance *vinst)
+{
+ int winid;
+ struct vas_window *window;
+
+ winid = vas_assign_window_id(&vinst->ida);
+ if (winid < 0)
+ return ERR_PTR(winid);
+
+ window = kzalloc(sizeof(*window), GFP_KERNEL);
+ if (!window)
+ goto out_free;
+
+ window->vinst = vinst;
+ window->winid = winid;
+
+ if (map_winctx_mmio_bars(window))
+ goto out_free;
+
+ return window;
+
+out_free:
+ kfree(window);
+ vas_release_window_id(&vinst->ida, winid);
+ return ERR_PTR(-ENOMEM);
+}
+
+static void put_rx_win(struct vas_window *rxwin)
+{
+ /* Better not be a send window! */
+ WARN_ON_ONCE(rxwin->tx_win);
+
+ atomic_dec(&rxwin->num_txwins);
+}
+
+/*
+ * Get the VAS receive window associated with NX engine identified
+ * by @cop and if applicable, @pswid.
+ *
+ * See also function header of set_vinst_win().
+ */
+static struct vas_window *get_vinst_rxwin(struct vas_instance *vinst,
+ enum vas_cop_type cop, u32 pswid)
+{
+ struct vas_window *rxwin;
+
+ mutex_lock(&vinst->mutex);
+
+ if (cop == VAS_COP_TYPE_842 || cop == VAS_COP_TYPE_842_HIPRI)
+ rxwin = vinst->rxwin[cop] ?: ERR_PTR(-EINVAL);
+ else
+ rxwin = ERR_PTR(-EINVAL);
+
+ if (!IS_ERR(rxwin))
+ atomic_inc(&rxwin->num_txwins);
+
+ mutex_unlock(&vinst->mutex);
+
+ return rxwin;
+}
+
+/*
+ * We have two tables of windows in a VAS instance. The first one,
+ * ->windows[], contains all the windows in the instance and allows
+ * looking up a window by its id. It is used to look up send windows
+ * during fault handling and receive windows when pairing user space
+ * send/receive windows.
+ *
+ * The second table, ->rxwin[], contains receive windows that are
+ * associated with NX engines. This table has VAS_COP_TYPE_MAX
+ * entries and is used to look up a receive window by its
+ * coprocessor type.
+ *
+ * Here, we save @window in the ->windows[] table. If it is a receive
+ * window, we also save the window in the ->rxwin[] table.
+ */
+static void set_vinst_win(struct vas_instance *vinst,
+ struct vas_window *window)
+{
+ int id = window->winid;
+
+ mutex_lock(&vinst->mutex);
+
+ /*
+ * There should only be one receive window for a coprocessor type
+ * unless its a user (FTW) window.
+ */
+ if (!window->user_win && !window->tx_win) {
+ WARN_ON_ONCE(vinst->rxwin[window->cop]);
+ vinst->rxwin[window->cop] = window;
+ }
+
+ WARN_ON_ONCE(vinst->windows[id] != NULL);
+ vinst->windows[id] = window;
+
+ mutex_unlock(&vinst->mutex);
+}
+
+/*
+ * Clear this window from the table(s) of windows for this VAS instance.
+ * See also function header of set_vinst_win().
+ */
+static void clear_vinst_win(struct vas_window *window)
+{
+ int id = window->winid;
+ struct vas_instance *vinst = window->vinst;
+
+ mutex_lock(&vinst->mutex);
+
+ if (!window->user_win && !window->tx_win) {
+ WARN_ON_ONCE(!vinst->rxwin[window->cop]);
+ vinst->rxwin[window->cop] = NULL;
+ }
+
+ WARN_ON_ONCE(vinst->windows[id] != window);
+ vinst->windows[id] = NULL;
+
+ mutex_unlock(&vinst->mutex);
+}
+
+static void init_winctx_for_rxwin(struct vas_window *rxwin,
+ struct vas_rx_win_attr *rxattr,
+ struct vas_winctx *winctx)
+{
+ /*
+ * We first zero (memset()) all fields and only set non-zero fields.
+ * Following fields are 0/false but maybe deserve a comment:
+ *
+ * ->notify_os_intr_reg In powerNV, send intrs to HV
+ * ->notify_disable False for NX windows
+ * ->intr_disable False for Fault Windows
+ * ->xtra_write False for NX windows
+ * ->notify_early NA for NX windows
+ * ->rsvd_txbuf_count NA for Rx windows
+ * ->lpid, ->pid, ->tid NA for Rx windows
+ */
+
+ memset(winctx, 0, sizeof(struct vas_winctx));
+
+ winctx->rx_fifo = rxattr->rx_fifo;
+ winctx->rx_fifo_size = rxattr->rx_fifo_size;
+ winctx->wcreds_max = rxattr->wcreds_max ?: VAS_WCREDS_DEFAULT;
+ winctx->pin_win = rxattr->pin_win;
+
+ winctx->nx_win = rxattr->nx_win;
+ winctx->fault_win = rxattr->fault_win;
+ winctx->rx_word_mode = rxattr->rx_win_ord_mode;
+ winctx->tx_word_mode = rxattr->tx_win_ord_mode;
+ winctx->rx_wcred_mode = rxattr->rx_wcred_mode;
+ winctx->tx_wcred_mode = rxattr->tx_wcred_mode;
+
+ if (winctx->nx_win) {
+ winctx->data_stamp = true;
+ winctx->intr_disable = true;
+ winctx->pin_win = true;
+
+ WARN_ON_ONCE(winctx->fault_win);
+ WARN_ON_ONCE(!winctx->rx_word_mode);
+ WARN_ON_ONCE(!winctx->tx_word_mode);
+ WARN_ON_ONCE(winctx->notify_after_count);
+ } else if (winctx->fault_win) {
+ winctx->notify_disable = true;
+ } else if (winctx->user_win) {
+ /*
+ * Section 1.8.1 Low Latency Core-Core Wake up of
+ * the VAS workbook:
+ *
+ * - disable credit checks ([tr]x_wcred_mode = false)
+ * - disable FIFO writes
+ * - enable ASB_Notify, disable interrupt
+ */
+ winctx->fifo_disable = true;
+ winctx->intr_disable = true;
+ winctx->rx_fifo = NULL;
+ }
+
+ winctx->lnotify_lpid = rxattr->lnotify_lpid;
+ winctx->lnotify_pid = rxattr->lnotify_pid;
+ winctx->lnotify_tid = rxattr->lnotify_tid;
+ winctx->pswid = rxattr->pswid;
+ winctx->dma_type = VAS_DMA_TYPE_INJECT;
+ winctx->tc_mode = rxattr->tc_mode;
+
+ winctx->min_scope = VAS_SCOPE_LOCAL;
+ winctx->max_scope = VAS_SCOPE_VECTORED_GROUP;
+}
+
+static bool rx_win_args_valid(enum vas_cop_type cop,
+ struct vas_rx_win_attr *attr)
+{
+ dump_rx_win_attr(attr);
+
+ if (cop >= VAS_COP_TYPE_MAX)
+ return false;
+
+ if (cop != VAS_COP_TYPE_FTW &&
+ attr->rx_fifo_size < VAS_RX_FIFO_SIZE_MIN)
+ return false;
+
+ if (attr->rx_fifo_size > VAS_RX_FIFO_SIZE_MAX)
+ return false;
+
+ if (attr->nx_win) {
+ /* cannot be fault or user window if it is nx */
+ if (attr->fault_win || attr->user_win)
+ return false;
+ /*
+ * Section 3.1.4.32: NX Windows must not disable notification,
+ * and must not enable interrupts or early notification.
+ */
+ if (attr->notify_disable || !attr->intr_disable ||
+ attr->notify_early)
+ return false;
+ } else if (attr->fault_win) {
+ /* cannot be both fault and user window */
+ if (attr->user_win)
+ return false;
+
+ /*
+ * Section 3.1.4.32: Fault windows must disable notification
+ * but not interrupts.
+ */
+ if (!attr->notify_disable || attr->intr_disable)
+ return false;
+
+ } else if (attr->user_win) {
+ /*
+ * User receive windows are only for fast-thread-wakeup
+ * (FTW). They don't need a FIFO and must disable interrupts
+ */
+ if (attr->rx_fifo || attr->rx_fifo_size || !attr->intr_disable)
+ return false;
+ } else {
+ /* Rx window must be one of NX or Fault or User window. */
+ return false;
+ }
+
+ return true;
+}
+
+void vas_init_rx_win_attr(struct vas_rx_win_attr *rxattr, enum vas_cop_type cop)
+{
+ memset(rxattr, 0, sizeof(*rxattr));
+
+ if (cop == VAS_COP_TYPE_842 || cop == VAS_COP_TYPE_842_HIPRI) {
+ rxattr->pin_win = true;
+ rxattr->nx_win = true;
+ rxattr->fault_win = false;
+ rxattr->intr_disable = true;
+ rxattr->rx_wcred_mode = true;
+ rxattr->tx_wcred_mode = true;
+ rxattr->rx_win_ord_mode = true;
+ rxattr->tx_win_ord_mode = true;
+ } else if (cop == VAS_COP_TYPE_FAULT) {
+ rxattr->pin_win = true;
+ rxattr->fault_win = true;
+ rxattr->notify_disable = true;
+ rxattr->rx_wcred_mode = true;
+ rxattr->tx_wcred_mode = true;
+ rxattr->rx_win_ord_mode = true;
+ rxattr->tx_win_ord_mode = true;
+ } else if (cop == VAS_COP_TYPE_FTW) {
+ rxattr->user_win = true;
+ rxattr->intr_disable = true;
+
+ /*
+ * As noted in the VAS Workbook we disable credit checks.
+ * If we enable credit checks in the future, we must also
+ * implement a mechanism to return the user credits or new
+ * paste operations will fail.
+ */
+ }
+}
+EXPORT_SYMBOL_GPL(vas_init_rx_win_attr);
+
+struct vas_window *vas_rx_win_open(int vasid, enum vas_cop_type cop,
+ struct vas_rx_win_attr *rxattr)
+{
+ struct vas_window *rxwin;
+ struct vas_winctx winctx;
+ struct vas_instance *vinst;
+
+ if (!rx_win_args_valid(cop, rxattr))
+ return ERR_PTR(-EINVAL);
+
+ vinst = find_vas_instance(vasid);
+ if (!vinst) {
+ pr_devel("vasid %d not found!\n", vasid);
+ return ERR_PTR(-EINVAL);
+ }
+ pr_devel("Found instance %d\n", vasid);
+
+ rxwin = vas_window_alloc(vinst);
+ if (IS_ERR(rxwin)) {
+ pr_devel("Unable to allocate memory for Rx window\n");
+ return rxwin;
+ }
+
+ rxwin->tx_win = false;
+ rxwin->nx_win = rxattr->nx_win;
+ rxwin->user_win = rxattr->user_win;
+ rxwin->cop = cop;
+ if (rxattr->user_win)
+ rxwin->pid = task_pid_vnr(current);
+
+ init_winctx_for_rxwin(rxwin, rxattr, &winctx);
+ init_winctx_regs(rxwin, &winctx);
+
+ set_vinst_win(vinst, rxwin);
+
+ return rxwin;
+}
+EXPORT_SYMBOL_GPL(vas_rx_win_open);
+
+void vas_init_tx_win_attr(struct vas_tx_win_attr *txattr, enum vas_cop_type cop)
+{
+ memset(txattr, 0, sizeof(*txattr));
+
+ if (cop == VAS_COP_TYPE_842 || cop == VAS_COP_TYPE_842_HIPRI) {
+ txattr->rej_no_credit = false;
+ txattr->rx_wcred_mode = true;
+ txattr->tx_wcred_mode = true;
+ txattr->rx_win_ord_mode = true;
+ txattr->tx_win_ord_mode = true;
+ } else if (cop == VAS_COP_TYPE_FTW) {
+ txattr->user_win = true;
+ }
+}
+EXPORT_SYMBOL_GPL(vas_init_tx_win_attr);
+
+static void init_winctx_for_txwin(struct vas_window *txwin,
+ struct vas_tx_win_attr *txattr,
+ struct vas_winctx *winctx)
+{
+ /*
+ * We first zero all fields and only set non-zero ones. Following
+ * are some fields set to 0/false for the stated reason:
+ *
+ * ->notify_os_intr_reg In powernv, send intrs to HV
+ * ->rsvd_txbuf_count Not supported yet.
+ * ->notify_disable False for NX windows
+ * ->xtra_write False for NX windows
+ * ->notify_early NA for NX windows
+ * ->lnotify_lpid NA for Tx windows
+ * ->lnotify_pid NA for Tx windows
+ * ->lnotify_tid NA for Tx windows
+ * ->tx_win_cred_mode Ignore for now for NX windows
+ * ->rx_win_cred_mode Ignore for now for NX windows
+ */
+ memset(winctx, 0, sizeof(struct vas_winctx));
+
+ winctx->wcreds_max = txattr->wcreds_max ?: VAS_WCREDS_DEFAULT;
+
+ winctx->user_win = txattr->user_win;
+ winctx->nx_win = txwin->rxwin->nx_win;
+ winctx->pin_win = txattr->pin_win;
+
+ winctx->rx_wcred_mode = txattr->rx_wcred_mode;
+ winctx->tx_wcred_mode = txattr->tx_wcred_mode;
+ winctx->rx_word_mode = txattr->rx_win_ord_mode;
+ winctx->tx_word_mode = txattr->tx_win_ord_mode;
+
+ if (winctx->nx_win) {
+ winctx->data_stamp = true;
+ winctx->intr_disable = true;
+ }
+
+ winctx->lpid = txattr->lpid;
+ winctx->pidr = txattr->pidr;
+ winctx->rx_win_id = txwin->rxwin->winid;
+
+ winctx->dma_type = VAS_DMA_TYPE_INJECT;
+ winctx->tc_mode = txattr->tc_mode;
+ winctx->min_scope = VAS_SCOPE_LOCAL;
+ winctx->max_scope = VAS_SCOPE_VECTORED_GROUP;
+
+ winctx->pswid = 0;
+}
+
+static bool tx_win_args_valid(enum vas_cop_type cop,
+ struct vas_tx_win_attr *attr)
+{
+ if (attr->tc_mode != VAS_THRESH_DISABLED)
+ return false;
+
+ if (cop > VAS_COP_TYPE_MAX)
+ return false;
+
+ if (attr->user_win &&
+ (cop != VAS_COP_TYPE_FTW || attr->rsvd_txbuf_count))
+ return false;
+
+ return true;
+}
+
+struct vas_window *vas_tx_win_open(int vasid, enum vas_cop_type cop,
+ struct vas_tx_win_attr *attr)
+{
+ int rc;
+ struct vas_window *txwin;
+ struct vas_window *rxwin;
+ struct vas_winctx winctx;
+ struct vas_instance *vinst;
+
+ if (!tx_win_args_valid(cop, attr))
+ return ERR_PTR(-EINVAL);
+
+ vinst = find_vas_instance(vasid);
+ if (!vinst) {
+ pr_devel("vasid %d not found!\n", vasid);
+ return ERR_PTR(-EINVAL);
+ }
+
+ rxwin = get_vinst_rxwin(vinst, cop, attr->pswid);
+ if (IS_ERR(rxwin)) {
+ pr_devel("No RxWin for vasid %d, cop %d\n", vasid, cop);
+ return rxwin;
+ }
+
+ txwin = vas_window_alloc(vinst);
+ if (IS_ERR(txwin)) {
+ rc = PTR_ERR(txwin);
+ goto put_rxwin;
+ }
+
+ txwin->tx_win = 1;
+ txwin->rxwin = rxwin;
+ txwin->nx_win = txwin->rxwin->nx_win;
+ txwin->pid = attr->pid;
+ txwin->user_win = attr->user_win;
+
+ init_winctx_for_txwin(txwin, attr, &winctx);
+
+ init_winctx_regs(txwin, &winctx);
+
+ /*
+ * If its a kernel send window, map the window address into the
+ * kernel's address space. For user windows, user must issue an
+ * mmap() to map the window into their address space.
+ *
+ * NOTE: If kernel ever resubmits a user CRB after handling a page
+ * fault, we will need to map this into kernel as well.
+ */
+ if (!txwin->user_win) {
+ txwin->paste_kaddr = map_paste_region(txwin);
+ if (IS_ERR(txwin->paste_kaddr)) {
+ rc = PTR_ERR(txwin->paste_kaddr);
+ goto free_window;
+ }
+ }
+
+ set_vinst_win(vinst, txwin);
+
+ return txwin;
+
+free_window:
+ vas_window_free(txwin);
+
+put_rxwin:
+ put_rx_win(rxwin);
+ return ERR_PTR(rc);
+
+}
+EXPORT_SYMBOL_GPL(vas_tx_win_open);
+
+int vas_copy_crb(void *crb, int offset)
+{
+ return vas_copy(crb, offset);
+}
+EXPORT_SYMBOL_GPL(vas_copy_crb);
+
+#define RMA_LSMP_REPORT_ENABLE PPC_BIT(53)
+int vas_paste_crb(struct vas_window *txwin, int offset, bool re)
+{
+ int rc;
+ void *addr;
+ uint64_t val;
+
+ /*
+ * Only NX windows are supported for now and hardware assumes
+ * report-enable flag is set for NX windows. Ensure software
+ * complies too.
+ */
+ WARN_ON_ONCE(txwin->nx_win && !re);
+
+ addr = txwin->paste_kaddr;
+ if (re) {
+ /*
+ * Set the REPORT_ENABLE bit (equivalent to writing
+ * to 1K offset of the paste address)
+ */
+ val = SET_FIELD(RMA_LSMP_REPORT_ENABLE, 0ULL, 1);
+ addr += val;
+ }
+
+ /*
+ * Map the raw CR value from vas_paste() to an error code (there
+ * is just pass or fail for now though).
+ */
+ rc = vas_paste(addr, offset);
+ if (rc == 2)
+ rc = 0;
+ else
+ rc = -EINVAL;
+
+ print_fifo_msg_count(txwin);
+
+ return rc;
+}
+EXPORT_SYMBOL_GPL(vas_paste_crb);
+
+static void poll_window_busy_state(struct vas_window *window)
+{
+ int busy;
+ u64 val;
+
+retry:
+ /*
+ * Poll Window Busy flag
+ */
+ val = read_hvwc_reg(window, VREG(WIN_STATUS));
+ busy = GET_FIELD(VAS_WIN_BUSY, val);
+ if (busy) {
+ val = 0;
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(HZ);
+ goto retry;
+ }
+}
+
+static void poll_window_castout(struct vas_window *window)
+{
+ int cached;
+ u64 val;
+
+ /* Cast window context out of the cache */
+retry:
+ val = read_hvwc_reg(window, VREG(WIN_CTX_CACHING_CTL));
+ cached = GET_FIELD(VAS_WIN_CACHE_STATUS, val);
+ if (cached) {
+ val = 0ULL;
+ val = SET_FIELD(VAS_CASTOUT_REQ, val, 1);
+ val = SET_FIELD(VAS_PUSH_TO_MEM, val, 0);
+ write_hvwc_reg(window, VREG(WIN_CTX_CACHING_CTL), val);
+
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(HZ);
+ goto retry;
+ }
+}
+
+/*
+ * Close a window.
+ *
+ * See Section 1.12.1 of VAS workbook v1.05 for details on closing window:
+ * - Disable new paste operations (unmap paste address)
+ * - Poll for the "Window Busy" bit to be cleared
+ * - Clear the Open/Enable bit for the Window.
+ * - Poll for return of window Credits (implies FIFO empty for Rx win?)
+ * - Unpin and cast window context out of cache
+ *
+ * Besides the hardware, kernel has some bookkeeping of course.
+ */
+int vas_win_close(struct vas_window *window)
+{
+ u64 val;
+
+ if (!window)
+ return 0;
+
+ if (!window->tx_win && atomic_read(&window->num_txwins) != 0) {
+ pr_devel("Attempting to close an active Rx window!\n");
+ WARN_ON_ONCE(1);
+ return -EBUSY;
+ }
+
+ unmap_paste_region(window);
+
+ clear_vinst_win(window);
+
+ poll_window_busy_state(window);
+
+ /* Unpin window from cache and close it */
+ val = read_hvwc_reg(window, VREG(WINCTL));
+ val = SET_FIELD(VAS_WINCTL_PIN, val, 0);
+ val = SET_FIELD(VAS_WINCTL_OPEN, val, 0);
+ write_hvwc_reg(window, VREG(WINCTL), val);
+
+ poll_window_castout(window);
+
+ /* if send window, drop reference to matching receive window */
+ if (window->tx_win)
+ put_rx_win(window->rxwin);
+
+ vas_window_free(window);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(vas_win_close);
diff --git a/arch/powerpc/platforms/powernv/vas.c b/arch/powerpc/platforms/powernv/vas.c
new file mode 100644
index 000000000000..565a4878fefa
--- /dev/null
+++ b/arch/powerpc/platforms/powernv/vas.c
@@ -0,0 +1,151 @@
+/*
+ * Copyright 2016-17 IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#define pr_fmt(fmt) "vas: " fmt
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/export.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/of_platform.h>
+#include <linux/of_address.h>
+#include <linux/of.h>
+
+#include "vas.h"
+
+static DEFINE_MUTEX(vas_mutex);
+static LIST_HEAD(vas_instances);
+
+static int init_vas_instance(struct platform_device *pdev)
+{
+ int rc, vasid;
+ struct resource *res;
+ struct vas_instance *vinst;
+ struct device_node *dn = pdev->dev.of_node;
+
+ rc = of_property_read_u32(dn, "ibm,vas-id", &vasid);
+ if (rc) {
+ pr_err("No ibm,vas-id property for %s?\n", pdev->name);
+ return -ENODEV;
+ }
+
+ if (pdev->num_resources != 4) {
+ pr_err("Unexpected DT configuration for [%s, %d]\n",
+ pdev->name, vasid);
+ return -ENODEV;
+ }
+
+ vinst = kzalloc(sizeof(*vinst), GFP_KERNEL);
+ if (!vinst)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(&vinst->node);
+ ida_init(&vinst->ida);
+ mutex_init(&vinst->mutex);
+ vinst->vas_id = vasid;
+ vinst->pdev = pdev;
+
+ res = &pdev->resource[0];
+ vinst->hvwc_bar_start = res->start;
+
+ res = &pdev->resource[1];
+ vinst->uwc_bar_start = res->start;
+
+ res = &pdev->resource[2];
+ vinst->paste_base_addr = res->start;
+
+ res = &pdev->resource[3];
+ if (res->end > 62) {
+ pr_err("Bad 'paste_win_id_shift' in DT, %llx\n", res->end);
+ goto free_vinst;
+ }
+
+ vinst->paste_win_id_shift = 63 - res->end;
+
+ pr_devel("Initialized instance [%s, %d], paste_base 0x%llx, "
+ "paste_win_id_shift 0x%llx\n", pdev->name, vasid,
+ vinst->paste_base_addr, vinst->paste_win_id_shift);
+
+ mutex_lock(&vas_mutex);
+ list_add(&vinst->node, &vas_instances);
+ mutex_unlock(&vas_mutex);
+
+ dev_set_drvdata(&pdev->dev, vinst);
+
+ return 0;
+
+free_vinst:
+ kfree(vinst);
+ return -ENODEV;
+
+}
+
+/*
+ * Although this is read/used multiple times, it is written to only
+ * during initialization.
+ */
+struct vas_instance *find_vas_instance(int vasid)
+{
+ struct list_head *ent;
+ struct vas_instance *vinst;
+
+ mutex_lock(&vas_mutex);
+ list_for_each(ent, &vas_instances) {
+ vinst = list_entry(ent, struct vas_instance, node);
+ if (vinst->vas_id == vasid) {
+ mutex_unlock(&vas_mutex);
+ return vinst;
+ }
+ }
+ mutex_unlock(&vas_mutex);
+
+ pr_devel("Instance %d not found\n", vasid);
+ return NULL;
+}
+
+static int vas_probe(struct platform_device *pdev)
+{
+ return init_vas_instance(pdev);
+}
+
+static const struct of_device_id powernv_vas_match[] = {
+ { .compatible = "ibm,vas",},
+ {},
+};
+
+static struct platform_driver vas_driver = {
+ .driver = {
+ .name = "vas",
+ .of_match_table = powernv_vas_match,
+ },
+ .probe = vas_probe,
+};
+
+static int __init vas_init(void)
+{
+ int found = 0;
+ struct device_node *dn;
+
+ platform_driver_register(&vas_driver);
+
+ for_each_compatible_node(dn, NULL, "ibm,vas") {
+ of_platform_device_create(dn, NULL, NULL);
+ found++;
+ }
+
+ if (!found)
+ return -ENODEV;
+
+ pr_devel("Found %d instances\n", found);
+
+ return 0;
+}
+device_initcall(vas_init);
diff --git a/arch/powerpc/platforms/powernv/vas.h b/arch/powerpc/platforms/powernv/vas.h
new file mode 100644
index 000000000000..38dee5d50f31
--- /dev/null
+++ b/arch/powerpc/platforms/powernv/vas.h
@@ -0,0 +1,467 @@
+/*
+ * Copyright 2016-17 IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _VAS_H
+#define _VAS_H
+#include <linux/atomic.h>
+#include <linux/idr.h>
+#include <asm/vas.h>
+#include <linux/io.h>
+
+/*
+ * Overview of Virtual Accelerator Switchboard (VAS).
+ *
+ * VAS is a hardware "switchboard" that allows senders and receivers to
+ * exchange messages with _minimal_ kernel involvment. The receivers are
+ * typically NX coprocessor engines that perform compression or encryption
+ * in hardware, but receivers can also be other software threads.
+ *
+ * Senders are user/kernel threads that submit compression/encryption or
+ * other requests to the receivers. Senders must format their messages as
+ * Coprocessor Request Blocks (CRB)s and submit them using the "copy" and
+ * "paste" instructions which were introduced in Power9.
+ *
+ * A Power node can have (upto?) 8 Power chips. There is one instance of
+ * VAS in each Power9 chip. Each instance of VAS has 64K windows or ports,
+ * Senders and receivers must each connect to a separate window before they
+ * can exchange messages through the switchboard.
+ *
+ * Each window is described by two types of window contexts:
+ *
+ * Hypervisor Window Context (HVWC) of size VAS_HVWC_SIZE bytes
+ *
+ * OS/User Window Context (UWC) of size VAS_UWC_SIZE bytes.
+ *
+ * A window context can be viewed as a set of 64-bit registers. The settings
+ * in these registers configure/control/determine the behavior of the VAS
+ * hardware when messages are sent/received through the window. The registers
+ * in the HVWC are configured by the kernel while the registers in the UWC can
+ * be configured by the kernel or by the user space application that is using
+ * the window.
+ *
+ * The HVWCs for all windows on a specific instance of VAS are in a contiguous
+ * range of hardware addresses or Base address region (BAR) referred to as the
+ * HVWC BAR for the instance. Similarly the UWCs for all windows on an instance
+ * are referred to as the UWC BAR for the instance.
+ *
+ * The two BARs for each instance are defined Power9 MMIO Ranges spreadsheet
+ * and available to the kernel in the VAS node's "reg" property in the device
+ * tree:
+ *
+ * /proc/device-tree/vasm@.../reg
+ *
+ * (see vas_probe() for details on the reg property).
+ *
+ * The kernel maps the HVWC and UWC BAR regions into the kernel address
+ * space (hvwc_map and uwc_map). The kernel can then access the window
+ * contexts of a specific window using:
+ *
+ * hvwc = hvwc_map + winid * VAS_HVWC_SIZE.
+ * uwc = uwc_map + winid * VAS_UWC_SIZE.
+ *
+ * where winid is the window index (0..64K).
+ *
+ * As mentioned, a window context is used to "configure" a window. Besides
+ * this configuration address, each _send_ window also has a unique hardware
+ * "paste" address that is used to submit requests/CRBs (see vas_paste_crb()).
+ *
+ * The hardware paste address for a window is computed using the "paste
+ * base address" and "paste win id shift" reg properties in the VAS device
+ * tree node using:
+ *
+ * paste_addr = paste_base + ((winid << paste_win_id_shift))
+ *
+ * (again, see vas_probe() for ->paste_base_addr and ->paste_win_id_shift).
+ *
+ * The kernel maps this hardware address into the sender's address space
+ * after which they can use the 'paste' instruction (new in Power9) to
+ * send a message (submit a request aka CRB) to the coprocessor.
+ *
+ * NOTE: In the initial version, senders can only in-kernel drivers/threads.
+ * Support for user space threads will be added in follow-on patches.
+ *
+ * TODO: Do we need to map the UWC into user address space so they can return
+ * credits? Its NA for NX but may be needed for other receive windows.
+ *
+ */
+
+#define VAS_WINDOWS_PER_CHIP (64 << 10)
+
+/*
+ * Hypervisor and OS/USer Window Context sizes
+ */
+#define VAS_HVWC_SIZE 512
+#define VAS_UWC_SIZE PAGE_SIZE
+
+/*
+ * Initial per-process credits.
+ * Max send window credits: 4K-1 (12-bits in VAS_TX_WCRED)
+ * Max receive window credits: 64K-1 (16 bits in VAS_LRX_WCRED)
+ *
+ * TODO: Needs tuning for per-process credits
+ */
+#define VAS_WCREDS_MIN 16
+#define VAS_WCREDS_MAX ((64 << 10) - 1)
+#define VAS_WCREDS_DEFAULT (1 << 10)
+
+/*
+ * VAS Window Context Register Offsets and bitmasks.
+ * See Section 3.1.4 of VAS Work book
+ */
+#define VAS_LPID_OFFSET 0x010
+#define VAS_LPID PPC_BITMASK(0, 11)
+
+#define VAS_PID_OFFSET 0x018
+#define VAS_PID_ID PPC_BITMASK(0, 19)
+
+#define VAS_XLATE_MSR_OFFSET 0x020
+#define VAS_XLATE_MSR_DR PPC_BIT(0)
+#define VAS_XLATE_MSR_TA PPC_BIT(1)
+#define VAS_XLATE_MSR_PR PPC_BIT(2)
+#define VAS_XLATE_MSR_US PPC_BIT(3)
+#define VAS_XLATE_MSR_HV PPC_BIT(4)
+#define VAS_XLATE_MSR_SF PPC_BIT(5)
+
+#define VAS_XLATE_LPCR_OFFSET 0x028
+#define VAS_XLATE_LPCR_PAGE_SIZE PPC_BITMASK(0, 2)
+#define VAS_XLATE_LPCR_ISL PPC_BIT(3)
+#define VAS_XLATE_LPCR_TC PPC_BIT(4)
+#define VAS_XLATE_LPCR_SC PPC_BIT(5)
+
+#define VAS_XLATE_CTL_OFFSET 0x030
+#define VAS_XLATE_MODE PPC_BITMASK(0, 1)
+
+#define VAS_AMR_OFFSET 0x040
+#define VAS_AMR PPC_BITMASK(0, 63)
+
+#define VAS_SEIDR_OFFSET 0x048
+#define VAS_SEIDR PPC_BITMASK(0, 63)
+
+#define VAS_FAULT_TX_WIN_OFFSET 0x050
+#define VAS_FAULT_TX_WIN PPC_BITMASK(48, 63)
+
+#define VAS_OSU_INTR_SRC_RA_OFFSET 0x060
+#define VAS_OSU_INTR_SRC_RA PPC_BITMASK(8, 63)
+
+#define VAS_HV_INTR_SRC_RA_OFFSET 0x070
+#define VAS_HV_INTR_SRC_RA PPC_BITMASK(8, 63)
+
+#define VAS_PSWID_OFFSET 0x078
+#define VAS_PSWID_EA_HANDLE PPC_BITMASK(0, 31)
+
+#define VAS_SPARE1_OFFSET 0x080
+#define VAS_SPARE2_OFFSET 0x088
+#define VAS_SPARE3_OFFSET 0x090
+#define VAS_SPARE4_OFFSET 0x130
+#define VAS_SPARE5_OFFSET 0x160
+#define VAS_SPARE6_OFFSET 0x188
+
+#define VAS_LFIFO_BAR_OFFSET 0x0A0
+#define VAS_LFIFO_BAR PPC_BITMASK(8, 53)
+#define VAS_PAGE_MIGRATION_SELECT PPC_BITMASK(54, 56)
+
+#define VAS_LDATA_STAMP_CTL_OFFSET 0x0A8
+#define VAS_LDATA_STAMP PPC_BITMASK(0, 1)
+#define VAS_XTRA_WRITE PPC_BIT(2)
+
+#define VAS_LDMA_CACHE_CTL_OFFSET 0x0B0
+#define VAS_LDMA_TYPE PPC_BITMASK(0, 1)
+#define VAS_LDMA_FIFO_DISABLE PPC_BIT(2)
+
+#define VAS_LRFIFO_PUSH_OFFSET 0x0B8
+#define VAS_LRFIFO_PUSH PPC_BITMASK(0, 15)
+
+#define VAS_CURR_MSG_COUNT_OFFSET 0x0C0
+#define VAS_CURR_MSG_COUNT PPC_BITMASK(0, 7)
+
+#define VAS_LNOTIFY_AFTER_COUNT_OFFSET 0x0C8
+#define VAS_LNOTIFY_AFTER_COUNT PPC_BITMASK(0, 7)
+
+#define VAS_LRX_WCRED_OFFSET 0x0E0
+#define VAS_LRX_WCRED PPC_BITMASK(0, 15)
+
+#define VAS_LRX_WCRED_ADDER_OFFSET 0x190
+#define VAS_LRX_WCRED_ADDER PPC_BITMASK(0, 15)
+
+#define VAS_TX_WCRED_OFFSET 0x0F0
+#define VAS_TX_WCRED PPC_BITMASK(4, 15)
+
+#define VAS_TX_WCRED_ADDER_OFFSET 0x1A0
+#define VAS_TX_WCRED_ADDER PPC_BITMASK(4, 15)
+
+#define VAS_LFIFO_SIZE_OFFSET 0x100
+#define VAS_LFIFO_SIZE PPC_BITMASK(0, 3)
+
+#define VAS_WINCTL_OFFSET 0x108
+#define VAS_WINCTL_OPEN PPC_BIT(0)
+#define VAS_WINCTL_REJ_NO_CREDIT PPC_BIT(1)
+#define VAS_WINCTL_PIN PPC_BIT(2)
+#define VAS_WINCTL_TX_WCRED_MODE PPC_BIT(3)
+#define VAS_WINCTL_RX_WCRED_MODE PPC_BIT(4)
+#define VAS_WINCTL_TX_WORD_MODE PPC_BIT(5)
+#define VAS_WINCTL_RX_WORD_MODE PPC_BIT(6)
+#define VAS_WINCTL_RSVD_TXBUF PPC_BIT(7)
+#define VAS_WINCTL_THRESH_CTL PPC_BITMASK(8, 9)
+#define VAS_WINCTL_FAULT_WIN PPC_BIT(10)
+#define VAS_WINCTL_NX_WIN PPC_BIT(11)
+
+#define VAS_WIN_STATUS_OFFSET 0x110
+#define VAS_WIN_BUSY PPC_BIT(1)
+
+#define VAS_WIN_CTX_CACHING_CTL_OFFSET 0x118
+#define VAS_CASTOUT_REQ PPC_BIT(0)
+#define VAS_PUSH_TO_MEM PPC_BIT(1)
+#define VAS_WIN_CACHE_STATUS PPC_BIT(4)
+
+#define VAS_TX_RSVD_BUF_COUNT_OFFSET 0x120
+#define VAS_RXVD_BUF_COUNT PPC_BITMASK(58, 63)
+
+#define VAS_LRFIFO_WIN_PTR_OFFSET 0x128
+#define VAS_LRX_WIN_ID PPC_BITMASK(0, 15)
+
+/*
+ * Local Notification Control Register controls what happens in _response_
+ * to a paste command and hence applies only to receive windows.
+ */
+#define VAS_LNOTIFY_CTL_OFFSET 0x138
+#define VAS_NOTIFY_DISABLE PPC_BIT(0)
+#define VAS_INTR_DISABLE PPC_BIT(1)
+#define VAS_NOTIFY_EARLY PPC_BIT(2)
+#define VAS_NOTIFY_OSU_INTR PPC_BIT(3)
+
+#define VAS_LNOTIFY_PID_OFFSET 0x140
+#define VAS_LNOTIFY_PID PPC_BITMASK(0, 19)
+
+#define VAS_LNOTIFY_LPID_OFFSET 0x148
+#define VAS_LNOTIFY_LPID PPC_BITMASK(0, 11)
+
+#define VAS_LNOTIFY_TID_OFFSET 0x150
+#define VAS_LNOTIFY_TID PPC_BITMASK(0, 15)
+
+#define VAS_LNOTIFY_SCOPE_OFFSET 0x158
+#define VAS_LNOTIFY_MIN_SCOPE PPC_BITMASK(0, 1)
+#define VAS_LNOTIFY_MAX_SCOPE PPC_BITMASK(2, 3)
+
+#define VAS_NX_UTIL_OFFSET 0x1B0
+#define VAS_NX_UTIL PPC_BITMASK(0, 63)
+
+/* SE: Side effects */
+#define VAS_NX_UTIL_SE_OFFSET 0x1B8
+#define VAS_NX_UTIL_SE PPC_BITMASK(0, 63)
+
+#define VAS_NX_UTIL_ADDER_OFFSET 0x180
+#define VAS_NX_UTIL_ADDER PPC_BITMASK(32, 63)
+
+/*
+ * Local Notify Scope Control Register. (Receive windows only).
+ */
+enum vas_notify_scope {
+ VAS_SCOPE_LOCAL,
+ VAS_SCOPE_GROUP,
+ VAS_SCOPE_VECTORED_GROUP,
+ VAS_SCOPE_UNUSED,
+};
+
+/*
+ * Local DMA Cache Control Register (Receive windows only).
+ */
+enum vas_dma_type {
+ VAS_DMA_TYPE_INJECT,
+ VAS_DMA_TYPE_WRITE,
+};
+
+/*
+ * Local Notify Scope Control Register. (Receive windows only).
+ * Not applicable to NX receive windows.
+ */
+enum vas_notify_after_count {
+ VAS_NOTIFY_AFTER_256 = 0,
+ VAS_NOTIFY_NONE,
+ VAS_NOTIFY_AFTER_2
+};
+
+/*
+ * One per instance of VAS. Each instance will have a separate set of
+ * receive windows, one per coprocessor type.
+ *
+ * See also function header of set_vinst_win() for details on ->windows[]
+ * and ->rxwin[] tables.
+ */
+struct vas_instance {
+ int vas_id;
+ struct ida ida;
+ struct list_head node;
+ struct platform_device *pdev;
+
+ u64 hvwc_bar_start;
+ u64 uwc_bar_start;
+ u64 paste_base_addr;
+ u64 paste_win_id_shift;
+
+ struct mutex mutex;
+ struct vas_window *rxwin[VAS_COP_TYPE_MAX];
+ struct vas_window *windows[VAS_WINDOWS_PER_CHIP];
+};
+
+/*
+ * In-kernel state a VAS window. One per window.
+ */
+struct vas_window {
+ /* Fields common to send and receive windows */
+ struct vas_instance *vinst;
+ int winid;
+ bool tx_win; /* True if send window */
+ bool nx_win; /* True if NX window */
+ bool user_win; /* True if user space window */
+ void *hvwc_map; /* HV window context */
+ void *uwc_map; /* OS/User window context */
+ pid_t pid; /* Linux process id of owner */
+
+ /* Fields applicable only to send windows */
+ void *paste_kaddr;
+ char *paste_addr_name;
+ struct vas_window *rxwin;
+
+ /* Feilds applicable only to receive windows */
+ enum vas_cop_type cop;
+ atomic_t num_txwins;
+};
+
+/*
+ * Container for the hardware state of a window. One per-window.
+ *
+ * A VAS Window context is a 512-byte area in the hardware that contains
+ * a set of 64-bit registers. Individual bit-fields in these registers
+ * determine the configuration/operation of the hardware. struct vas_winctx
+ * is a container for the register fields in the window context.
+ */
+struct vas_winctx {
+ void *rx_fifo;
+ int rx_fifo_size;
+ int wcreds_max;
+ int rsvd_txbuf_count;
+
+ bool user_win;
+ bool nx_win;
+ bool fault_win;
+ bool rsvd_txbuf_enable;
+ bool pin_win;
+ bool rej_no_credit;
+ bool tx_wcred_mode;
+ bool rx_wcred_mode;
+ bool tx_word_mode;
+ bool rx_word_mode;
+ bool data_stamp;
+ bool xtra_write;
+ bool notify_disable;
+ bool intr_disable;
+ bool fifo_disable;
+ bool notify_early;
+ bool notify_os_intr_reg;
+
+ int lpid;
+ int pidr; /* value from SPRN_PID, not linux pid */
+ int lnotify_lpid;
+ int lnotify_pid;
+ int lnotify_tid;
+ u32 pswid;
+ int rx_win_id;
+ int fault_win_id;
+ int tc_mode;
+
+ u64 irq_port;
+
+ enum vas_dma_type dma_type;
+ enum vas_notify_scope min_scope;
+ enum vas_notify_scope max_scope;
+ enum vas_notify_after_count notify_after_count;
+};
+
+extern struct vas_instance *find_vas_instance(int vasid);
+
+/*
+ * VREG(x):
+ * Expand a register's short name (eg: LPID) into two parameters:
+ * - the register's short name in string form ("LPID"), and
+ * - the name of the macro (eg: VAS_LPID_OFFSET), defining the
+ * register's offset in the window context
+ */
+#define VREG_SFX(n, s) __stringify(n), VAS_##n##s
+#define VREG(r) VREG_SFX(r, _OFFSET)
+
+#ifdef vas_debug
+static inline void dump_rx_win_attr(struct vas_rx_win_attr *attr)
+{
+ pr_err("fault %d, notify %d, intr %d early %d\n",
+ attr->fault_win, attr->notify_disable,
+ attr->intr_disable, attr->notify_early);
+
+ pr_err("rx_fifo_size %d, max value %d\n",
+ attr->rx_fifo_size, VAS_RX_FIFO_SIZE_MAX);
+}
+
+static inline void vas_log_write(struct vas_window *win, char *name,
+ void *regptr, u64 val)
+{
+ if (val)
+ pr_err("%swin #%d: %s reg %p, val 0x%016llx\n",
+ win->tx_win ? "Tx" : "Rx", win->winid, name,
+ regptr, val);
+}
+
+#else /* vas_debug */
+
+#define vas_log_write(win, name, reg, val)
+#define dump_rx_win_attr(attr)
+
+#endif /* vas_debug */
+
+static inline void write_uwc_reg(struct vas_window *win, char *name,
+ s32 reg, u64 val)
+{
+ void *regptr;
+
+ regptr = win->uwc_map + reg;
+ vas_log_write(win, name, regptr, val);
+
+ out_be64(regptr, val);
+}
+
+static inline void write_hvwc_reg(struct vas_window *win, char *name,
+ s32 reg, u64 val)
+{
+ void *regptr;
+
+ regptr = win->hvwc_map + reg;
+ vas_log_write(win, name, regptr, val);
+
+ out_be64(regptr, val);
+}
+
+static inline u64 read_hvwc_reg(struct vas_window *win,
+ char *name __maybe_unused, s32 reg)
+{
+ return in_be64(win->hvwc_map+reg);
+}
+
+#ifdef vas_debug
+
+static void print_fifo_msg_count(struct vas_window *txwin)
+{
+ uint64_t read_hvwc_reg(struct vas_window *w, char *n, uint64_t o);
+ pr_devel("Winid %d, Msg count %llu\n", txwin->winid,
+ (uint64_t)read_hvwc_reg(txwin, VREG(LRFIFO_PUSH)));
+}
+#else /* vas_debug */
+
+#define print_fifo_msg_count(window)
+
+#endif /* vas_debug */
+
+#endif /* _VAS_H */
diff --git a/arch/powerpc/platforms/ps3/repository.c b/arch/powerpc/platforms/ps3/repository.c
index 814a7eaa7769..50dbaf24b1ee 100644
--- a/arch/powerpc/platforms/ps3/repository.c
+++ b/arch/powerpc/platforms/ps3/repository.c
@@ -170,14 +170,8 @@ int ps3_repository_read_bus_str(unsigned int bus_index, const char *bus_str,
int ps3_repository_read_bus_id(unsigned int bus_index, u64 *bus_id)
{
- int result;
-
- result = read_node(PS3_LPAR_ID_PME,
- make_first_field("bus", bus_index),
- make_field("id", 0),
- 0, 0,
- bus_id, NULL);
- return result;
+ return read_node(PS3_LPAR_ID_PME, make_first_field("bus", bus_index),
+ make_field("id", 0), 0, 0, bus_id, NULL);
}
int ps3_repository_read_bus_type(unsigned int bus_index,
@@ -224,15 +218,9 @@ int ps3_repository_read_dev_str(unsigned int bus_index,
int ps3_repository_read_dev_id(unsigned int bus_index, unsigned int dev_index,
u64 *dev_id)
{
- int result;
-
- result = read_node(PS3_LPAR_ID_PME,
- make_first_field("bus", bus_index),
- make_field("dev", dev_index),
- make_field("id", 0),
- 0,
- dev_id, NULL);
- return result;
+ return read_node(PS3_LPAR_ID_PME, make_first_field("bus", bus_index),
+ make_field("dev", dev_index), make_field("id", 0), 0,
+ dev_id, NULL);
}
int ps3_repository_read_dev_type(unsigned int bus_index,
diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c
index 6244bc849469..9dabea6e1443 100644
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -104,20 +104,6 @@ static void __noreturn ps3_halt(void)
ps3_sys_manager_halt(); /* never returns */
}
-static void ps3_panic(char *str)
-{
- DBG("%s:%d %s\n", __func__, __LINE__, str);
-
- smp_send_stop();
- printk("\n");
- printk(" System does not reboot automatically.\n");
- printk(" Please press POWER button.\n");
- printk("\n");
-
- while(1)
- lv1_pause(1);
-}
-
#if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE) || \
defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE)
static void __init prealloc(struct ps3_prealloc *p)
@@ -269,7 +255,6 @@ define_machine(ps3) {
.probe = ps3_probe,
.setup_arch = ps3_setup_arch,
.init_IRQ = ps3_init_IRQ,
- .panic = ps3_panic,
.get_boot_time = ps3_get_boot_time,
.set_dabr = ps3_set_dabr,
.calibrate_decr = ps3_calibrate_decr,
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index 2d2e5f80a3d3..5cc35d6b94b6 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -471,11 +471,13 @@ static ssize_t modalias_show(struct device *_dev, struct device_attribute *a,
return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
}
+static DEVICE_ATTR_RO(modalias);
-static struct device_attribute ps3_system_bus_dev_attrs[] = {
- __ATTR_RO(modalias),
- __ATTR_NULL,
+static struct attribute *ps3_system_bus_dev_attrs[] = {
+ &dev_attr_modalias.attr,
+ NULL,
};
+ATTRIBUTE_GROUPS(ps3_system_bus_dev);
struct bus_type ps3_system_bus_type = {
.name = "ps3_system_bus",
@@ -484,7 +486,7 @@ struct bus_type ps3_system_bus_type = {
.probe = ps3_system_bus_probe,
.remove = ps3_system_bus_remove,
.shutdown = ps3_system_bus_shutdown,
- .dev_attrs = ps3_system_bus_dev_attrs,
+ .dev_groups = ps3_system_bus_dev_groups,
};
static int __init ps3_system_bus_init(void)
diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig
index 913c54e23eea..71dd69d9ec64 100644
--- a/arch/powerpc/platforms/pseries/Kconfig
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -7,6 +7,7 @@ config PPC_PSERIES
select PCI
select PCI_MSI
select PPC_XICS
+ select PPC_XIVE_SPAPR
select PPC_ICP_NATIVE
select PPC_ICP_HV
select PPC_ICS_RTAS
@@ -124,7 +125,7 @@ config HV_PERF_CTRS
Enable access to hypervisor supplied counters in perf. Currently,
this enables code that uses the hcall GetPerfCounterInfo and 24x7
interfaces to retrieve counters. GPCI exists on Power 6 and later
- systems. 24x7 is available on Power 8 systems.
+ systems. 24x7 is available on Power 8 and later systems.
If unsure, select Y.
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index bda18d8e1674..e45b5f10645a 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -254,22 +254,18 @@ cc_error:
return first_dn;
}
-int dlpar_attach_node(struct device_node *dn)
+int dlpar_attach_node(struct device_node *dn, struct device_node *parent)
{
int rc;
- dn->parent = pseries_of_derive_parent(dn->full_name);
- if (IS_ERR(dn->parent))
- return PTR_ERR(dn->parent);
+ dn->parent = parent;
rc = of_attach_node(dn);
if (rc) {
- printk(KERN_ERR "Failed to add device node %s\n",
- dn->full_name);
+ printk(KERN_ERR "Failed to add device node %pOF\n", dn);
return rc;
}
- of_node_put(dn->parent);
return 0;
}
@@ -588,7 +584,7 @@ static ssize_t dlpar_show(struct class *class, struct class_attribute *attr,
return sprintf(buf, "%s\n", "memory,cpu");
}
-static CLASS_ATTR(dlpar, S_IWUSR | S_IRUSR, dlpar_show, dlpar_store);
+static CLASS_ATTR_RW(dlpar);
static int __init pseries_dlpar_init(void)
{
diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c
index 1eef46d9cf30..6b812ad990e4 100644
--- a/arch/powerpc/platforms/pseries/eeh_pseries.c
+++ b/arch/powerpc/platforms/pseries/eeh_pseries.c
@@ -247,14 +247,13 @@ static void *pseries_eeh_probe(struct pci_dn *pdn, void *data)
/* Initialize the fake PE */
memset(&pe, 0, sizeof(struct eeh_pe));
- pe.phb = edev->phb;
+ pe.phb = pdn->phb;
pe.config_addr = (pdn->busno << 16) | (pdn->devfn << 8);
/* Enable EEH on the device */
ret = eeh_ops->set_option(&pe, EEH_OPT_ENABLE);
if (!ret) {
/* Retrieve PE address */
- edev->config_addr = (pdn->busno << 16) | (pdn->devfn << 8);
edev->pe_config_addr = eeh_ops->get_pe_addr(&pe);
pe.addr = edev->pe_config_addr;
@@ -279,7 +278,6 @@ static void *pseries_eeh_probe(struct pci_dn *pdn, void *data)
/* This device doesn't support EEH, but it may have an
* EEH parent, in which case we mark it as supported.
*/
- edev->config_addr = pdn_to_eeh_dev(pdn->parent)->config_addr;
edev->pe_config_addr = pdn_to_eeh_dev(pdn->parent)->pe_config_addr;
eeh_add_to_parent_pe(edev);
}
diff --git a/arch/powerpc/platforms/pseries/event_sources.c b/arch/powerpc/platforms/pseries/event_sources.c
index 32187dc76730..6eeb0d4bab61 100644
--- a/arch/powerpc/platforms/pseries/event_sources.c
+++ b/arch/powerpc/platforms/pseries/event_sources.c
@@ -36,8 +36,8 @@ void request_event_sources_irqs(struct device_node *np,
virqs[count] = irq_create_of_mapping(&oirq);
if (!virqs[count]) {
pr_err("event-sources: Unable to allocate "
- "interrupt number for %s\n",
- np->full_name);
+ "interrupt number for %pOF\n",
+ np);
WARN_ON(1);
} else {
count++;
@@ -48,7 +48,7 @@ void request_event_sources_irqs(struct device_node *np,
for (i = 0; i < count; i++) {
if (request_irq(virqs[i], handler, 0, name, NULL)) {
pr_err("event-sources: Unable to request interrupt "
- "%d for %s\n", virqs[i], np->full_name);
+ "%d for %pOF\n", virqs[i], np);
WARN_ON(1);
return;
}
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index 7bc0e91f8715..fadb95efbb9e 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -34,6 +34,7 @@
#include <asm/machdep.h>
#include <asm/vdso_datapage.h>
#include <asm/xics.h>
+#include <asm/xive.h>
#include <asm/plpar_wrappers.h>
#include "pseries.h"
@@ -109,7 +110,10 @@ static void pseries_mach_cpu_die(void)
local_irq_disable();
idle_task_exit();
- xics_teardown_cpu();
+ if (xive_enabled())
+ xive_teardown_cpu();
+ else
+ xics_teardown_cpu();
if (get_preferred_offline_state(cpu) == CPU_STATE_INACTIVE) {
set_cpu_current_state(cpu, CPU_STATE_INACTIVE);
@@ -174,7 +178,10 @@ static int pseries_cpu_disable(void)
boot_cpuid = cpumask_any(cpu_online_mask);
/* FIXME: abstract this to not be platform specific later on */
- xics_migrate_irqs_away();
+ if (xive_enabled())
+ xive_smp_disable_cpu();
+ else
+ xics_migrate_irqs_away();
return 0;
}
@@ -264,8 +271,8 @@ static int pseries_add_processor(struct device_node *np)
/* If we get here, it most likely means that NR_CPUS is
* less than the partition's max processors setting.
*/
- printk(KERN_ERR "Cannot add cpu %s; this system configuration"
- " supports %d logical cpus.\n", np->full_name,
+ printk(KERN_ERR "Cannot add cpu %pOF; this system configuration"
+ " supports %d logical cpus.\n", np,
num_possible_cpus());
goto out_unlock;
}
@@ -455,15 +462,19 @@ static ssize_t dlpar_cpu_add(u32 drc_index)
}
dn = dlpar_configure_connector(cpu_to_be32(drc_index), parent);
- of_node_put(parent);
if (!dn) {
pr_warn("Failed call to configure-connector, drc index: %x\n",
drc_index);
dlpar_release_drc(drc_index);
+ of_node_put(parent);
return -EINVAL;
}
- rc = dlpar_attach_node(dn);
+ rc = dlpar_attach_node(dn, parent);
+
+ /* Regardless we are done with parent now */
+ of_node_put(parent);
+
if (rc) {
saved_rc = rc;
pr_warn("Failed to attach node %s, rc: %d, drc index: %x\n",
@@ -554,7 +565,7 @@ static ssize_t dlpar_cpu_remove(struct device_node *dn, u32 drc_index)
{
int rc;
- pr_debug("Attemping to remove CPU %s, drc index: %x\n",
+ pr_debug("Attempting to remove CPU %s, drc index: %x\n",
dn->name, drc_index);
rc = dlpar_offline_cpu(dn);
diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index 1fb162ba9d1c..1d48ab424bd9 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -22,6 +22,7 @@
#include <asm/machdep.h>
#include <asm/prom.h>
#include <asm/sparsemem.h>
+#include <asm/fadump.h>
#include "pseries.h"
static bool rtas_hp_event;
@@ -335,7 +336,38 @@ static struct memory_block *lmb_to_memblock(struct of_drconf_cell *lmb)
return mem_block;
}
+static int dlpar_change_lmb_state(struct of_drconf_cell *lmb, bool online)
+{
+ struct memory_block *mem_block;
+ int rc;
+
+ mem_block = lmb_to_memblock(lmb);
+ if (!mem_block)
+ return -EINVAL;
+
+ if (online && mem_block->dev.offline)
+ rc = device_online(&mem_block->dev);
+ else if (!online && !mem_block->dev.offline)
+ rc = device_offline(&mem_block->dev);
+ else
+ rc = 0;
+
+ put_device(&mem_block->dev);
+
+ return rc;
+}
+
+static int dlpar_online_lmb(struct of_drconf_cell *lmb)
+{
+ return dlpar_change_lmb_state(lmb, true);
+}
+
#ifdef CONFIG_MEMORY_HOTREMOVE
+static int dlpar_offline_lmb(struct of_drconf_cell *lmb)
+{
+ return dlpar_change_lmb_state(lmb, false);
+}
+
static int pseries_remove_memblock(unsigned long base, unsigned int memblock_size)
{
unsigned long block_sz, start_pfn;
@@ -408,6 +440,12 @@ static bool lmb_is_removable(struct of_drconf_cell *lmb)
scns_per_block = block_sz / MIN_MEMORY_BLOCK_SIZE;
phys_addr = lmb->base_addr;
+#ifdef CONFIG_FA_DUMP
+ /* Don't hot-remove memory that falls in fadump boot memory area */
+ if (is_fadump_boot_memory_area(phys_addr, block_sz))
+ return false;
+#endif
+
for (i = 0; i < scns_per_block; i++) {
pfn = PFN_DOWN(phys_addr);
if (!pfn_present(pfn))
@@ -424,19 +462,13 @@ static int dlpar_add_lmb(struct of_drconf_cell *);
static int dlpar_remove_lmb(struct of_drconf_cell *lmb)
{
- struct memory_block *mem_block;
unsigned long block_sz;
int nid, rc;
if (!lmb_is_removable(lmb))
return -EINVAL;
- mem_block = lmb_to_memblock(lmb);
- if (!mem_block)
- return -EINVAL;
-
- rc = device_offline(&mem_block->dev);
- put_device(&mem_block->dev);
+ rc = dlpar_offline_lmb(lmb);
if (rc)
return rc;
@@ -730,20 +762,6 @@ static int dlpar_memory_remove_by_ic(u32 lmbs_to_remove, u32 drc_index,
}
#endif /* CONFIG_MEMORY_HOTREMOVE */
-static int dlpar_online_lmb(struct of_drconf_cell *lmb)
-{
- struct memory_block *mem_block;
- int rc;
-
- mem_block = lmb_to_memblock(lmb);
- if (!mem_block)
- return -EINVAL;
-
- rc = device_online(&mem_block->dev);
- put_device(&mem_block->dev);
- return rc;
-}
-
static int dlpar_add_lmb(struct of_drconf_cell *lmb)
{
unsigned long block_sz;
@@ -810,6 +828,9 @@ static int dlpar_memory_add_by_count(u32 lmbs_to_add, struct property *prop)
return -EINVAL;
for (i = 0; i < num_lmbs && lmbs_to_add != lmbs_added; i++) {
+ if (lmbs[i].flags & DRCONF_MEM_ASSIGNED)
+ continue;
+
rc = dlpar_acquire_drc(lmbs[i].drc_index);
if (rc)
continue;
@@ -852,6 +873,7 @@ static int dlpar_memory_add_by_count(u32 lmbs_to_add, struct property *prop)
lmbs[i].base_addr, lmbs[i].drc_index);
lmbs[i].reserved = 0;
}
+ rc = 0;
}
return rc;
diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S
index 74b5b8e239c8..c511a1743a44 100644
--- a/arch/powerpc/platforms/pseries/hvCall.S
+++ b/arch/powerpc/platforms/pseries/hvCall.S
@@ -23,7 +23,7 @@
.globl hcall_tracepoint_refcount
hcall_tracepoint_refcount:
- .llong 0
+ .8byte 0
.section ".text"
#endif
diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c
index b363e439ddb9..408a86044133 100644
--- a/arch/powerpc/platforms/pseries/ibmebus.c
+++ b/arch/powerpc/platforms/pseries/ibmebus.c
@@ -150,8 +150,7 @@ static const struct dma_map_ops ibmebus_dma_ops = {
static int ibmebus_match_path(struct device *dev, void *data)
{
struct device_node *dn = to_platform_device(dev)->dev.of_node;
- return (dn->full_name &&
- (strcasecmp((char *)data, dn->full_name) == 0));
+ return (of_find_node_by_path(data) == dn);
}
static int ibmebus_match_node(struct device *dev, void *data)
@@ -395,8 +394,9 @@ static ssize_t devspec_show(struct device *dev,
struct platform_device *ofdev;
ofdev = to_platform_device(dev);
- return sprintf(buf, "%s\n", ofdev->dev.of_node->full_name);
+ return sprintf(buf, "%pOF\n", ofdev->dev.of_node);
}
+static DEVICE_ATTR_RO(devspec);
static ssize_t name_show(struct device *dev,
struct device_attribute *attr, char *buf)
@@ -406,19 +406,22 @@ static ssize_t name_show(struct device *dev,
ofdev = to_platform_device(dev);
return sprintf(buf, "%s\n", ofdev->dev.of_node->name);
}
+static DEVICE_ATTR_RO(name);
static ssize_t modalias_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return of_device_modalias(dev, buf, PAGE_SIZE);
}
+static DEVICE_ATTR_RO(modalias);
-static struct device_attribute ibmebus_bus_device_attrs[] = {
- __ATTR_RO(devspec),
- __ATTR_RO(name),
- __ATTR_RO(modalias),
- __ATTR_NULL
+static struct attribute *ibmebus_bus_device_attrs[] = {
+ &dev_attr_devspec.attr,
+ &dev_attr_name.attr,
+ &dev_attr_modalias.attr,
+ NULL,
};
+ATTRIBUTE_GROUPS(ibmebus_bus_device);
struct bus_type ibmebus_bus_type = {
.name = "ibmebus",
@@ -428,7 +431,7 @@ struct bus_type ibmebus_bus_type = {
.probe = ibmebus_bus_device_probe,
.remove = ibmebus_bus_device_remove,
.shutdown = ibmebus_bus_device_shutdown,
- .dev_attrs = ibmebus_bus_device_attrs,
+ .dev_groups = ibmebus_bus_device_groups,
};
EXPORT_SYMBOL(ibmebus_bus_type);
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 8374adee27e3..7c181467d0ad 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -511,8 +511,8 @@ static void iommu_table_setparms(struct pci_controller *phb,
basep = of_get_property(node, "linux,tce-base", NULL);
sizep = of_get_property(node, "linux,tce-size", NULL);
if (basep == NULL || sizep == NULL) {
- printk(KERN_ERR "PCI_DMA: iommu_table_setparms: %s has "
- "missing tce entries !\n", dn->full_name);
+ printk(KERN_ERR "PCI_DMA: iommu_table_setparms: %pOF has "
+ "missing tce entries !\n", dn);
return;
}
@@ -587,7 +587,7 @@ static void pci_dma_bus_setup_pSeries(struct pci_bus *bus)
dn = pci_bus_to_OF_node(bus);
- pr_debug("pci_dma_bus_setup_pSeries: setting up bus %s\n", dn->full_name);
+ pr_debug("pci_dma_bus_setup_pSeries: setting up bus %pOF\n", dn);
if (bus->self) {
/* This is not a root bus, any setup will be done for the
@@ -701,8 +701,8 @@ static void pci_dma_bus_setup_pSeriesLP(struct pci_bus *bus)
dn = pci_bus_to_OF_node(bus);
- pr_debug("pci_dma_bus_setup_pSeriesLP: setting up bus %s\n",
- dn->full_name);
+ pr_debug("pci_dma_bus_setup_pSeriesLP: setting up bus %pOF\n",
+ dn);
/* Find nearest ibm,dma-window, walking up the device tree */
for (pdn = dn; pdn != NULL; pdn = pdn->parent) {
@@ -718,8 +718,8 @@ static void pci_dma_bus_setup_pSeriesLP(struct pci_bus *bus)
ppci = PCI_DN(pdn);
- pr_debug(" parent is %s, iommu_table: 0x%p\n",
- pdn->full_name, ppci->table_group);
+ pr_debug(" parent is %pOF, iommu_table: 0x%p\n",
+ pdn, ppci->table_group);
if (!ppci->table_group) {
ppci->table_group = iommu_pseries_alloc_group(ppci->phb->node);
@@ -817,28 +817,28 @@ static void remove_ddw(struct device_node *np, bool remove_prop)
ret = tce_clearrange_multi_pSeriesLP(0,
1ULL << (be32_to_cpu(dwp->window_shift) - PAGE_SHIFT), dwp);
if (ret)
- pr_warning("%s failed to clear tces in window.\n",
- np->full_name);
+ pr_warning("%pOF failed to clear tces in window.\n",
+ np);
else
- pr_debug("%s successfully cleared tces in window.\n",
- np->full_name);
+ pr_debug("%pOF successfully cleared tces in window.\n",
+ np);
ret = rtas_call(ddw_avail[2], 1, 1, NULL, liobn);
if (ret)
- pr_warning("%s: failed to remove direct window: rtas returned "
+ pr_warning("%pOF: failed to remove direct window: rtas returned "
"%d to ibm,remove-pe-dma-window(%x) %llx\n",
- np->full_name, ret, ddw_avail[2], liobn);
+ np, ret, ddw_avail[2], liobn);
else
- pr_debug("%s: successfully removed direct window: rtas returned "
+ pr_debug("%pOF: successfully removed direct window: rtas returned "
"%d to ibm,remove-pe-dma-window(%x) %llx\n",
- np->full_name, ret, ddw_avail[2], liobn);
+ np, ret, ddw_avail[2], liobn);
delprop:
if (remove_prop)
ret = of_remove_property(np, win64);
if (ret)
- pr_warning("%s: failed to remove direct window property: %d\n",
- np->full_name, ret);
+ pr_warning("%pOF: failed to remove direct window property: %d\n",
+ np, ret);
}
static u64 find_existing_ddw(struct device_node *pdn)
@@ -1004,7 +1004,7 @@ static u64 enable_ddw(struct pci_dev *dev, struct device_node *pdn)
* list.
*/
list_for_each_entry(fpdn, &failed_ddw_pdn_list, list) {
- if (!strcmp(fpdn->pdn->full_name, pdn->full_name))
+ if (fpdn->pdn == pdn)
goto out_unlock;
}
@@ -1087,8 +1087,8 @@ static u64 enable_ddw(struct pci_dev *dev, struct device_node *pdn)
ddwprop->tce_shift = cpu_to_be32(page_shift);
ddwprop->window_shift = cpu_to_be32(len);
- dev_dbg(&dev->dev, "created tce table LIOBN 0x%x for %s\n",
- create.liobn, dn->full_name);
+ dev_dbg(&dev->dev, "created tce table LIOBN 0x%x for %pOF\n",
+ create.liobn, dn);
window = kzalloc(sizeof(*window), GFP_KERNEL);
if (!window)
@@ -1097,15 +1097,15 @@ static u64 enable_ddw(struct pci_dev *dev, struct device_node *pdn)
ret = walk_system_ram_range(0, memblock_end_of_DRAM() >> PAGE_SHIFT,
win64->value, tce_setrange_multi_pSeriesLP_walk);
if (ret) {
- dev_info(&dev->dev, "failed to map direct window for %s: %d\n",
- dn->full_name, ret);
+ dev_info(&dev->dev, "failed to map direct window for %pOF: %d\n",
+ dn, ret);
goto out_free_window;
}
ret = of_add_property(pdn, win64);
if (ret) {
- dev_err(&dev->dev, "unable to add dma window property for %s: %d",
- pdn->full_name, ret);
+ dev_err(&dev->dev, "unable to add dma window property for %pOF: %d",
+ pdn, ret);
goto out_free_window;
}
@@ -1158,7 +1158,7 @@ static void pci_dma_dev_setup_pSeriesLP(struct pci_dev *dev)
* already allocated.
*/
dn = pci_device_to_OF_node(dev);
- pr_debug(" node is %s\n", dn->full_name);
+ pr_debug(" node is %pOF\n", dn);
for (pdn = dn; pdn && PCI_DN(pdn) && !PCI_DN(pdn)->table_group;
pdn = pdn->parent) {
@@ -1169,11 +1169,11 @@ static void pci_dma_dev_setup_pSeriesLP(struct pci_dev *dev)
if (!pdn || !PCI_DN(pdn)) {
printk(KERN_WARNING "pci_dma_dev_setup_pSeriesLP: "
- "no DMA window found for pci dev=%s dn=%s\n",
- pci_name(dev), of_node_full_name(dn));
+ "no DMA window found for pci dev=%s dn=%pOF\n",
+ pci_name(dev), dn);
return;
}
- pr_debug(" parent is %s\n", pdn->full_name);
+ pr_debug(" parent is %pOF\n", pdn);
pci = PCI_DN(pdn);
if (!pci->table_group) {
@@ -1213,7 +1213,7 @@ static int dma_set_mask_pSeriesLP(struct device *dev, u64 dma_mask)
/* only attempt to use a new window if 64-bit DMA is requested */
if (!disable_ddw && dma_mask == DMA_BIT_MASK(64)) {
dn = pci_device_to_OF_node(pdev);
- dev_dbg(dev, "node is %s\n", dn->full_name);
+ dev_dbg(dev, "node is %pOF\n", dn);
/*
* the device tree might contain the dma-window properties
diff --git a/arch/powerpc/platforms/pseries/kexec.c b/arch/powerpc/platforms/pseries/kexec.c
index 6681ac97fb18..eeb13429d685 100644
--- a/arch/powerpc/platforms/pseries/kexec.c
+++ b/arch/powerpc/platforms/pseries/kexec.c
@@ -15,6 +15,7 @@
#include <asm/firmware.h>
#include <asm/kexec.h>
#include <asm/xics.h>
+#include <asm/xive.h>
#include <asm/smp.h>
#include <asm/plpar_wrappers.h>
@@ -51,5 +52,8 @@ void pseries_kexec_cpu_down(int crash_shutdown, int secondary)
}
}
- xics_kexec_teardown_cpu(secondary);
+ if (xive_enabled())
+ xive_kexec_teardown_cpu(secondary);
+ else
+ xics_kexec_teardown_cpu(secondary);
}
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 6541d0b03e4c..495ba4e7336d 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -301,7 +301,7 @@ static long pSeries_lpar_hpte_updatepp(unsigned long slot,
int ssize, unsigned long inv_flags)
{
unsigned long lpar_rc;
- unsigned long flags = (newpp & 7) | H_AVPN;
+ unsigned long flags;
unsigned long want_v;
want_v = hpte_encode_avpn(vpn, psize, ssize);
@@ -309,6 +309,11 @@ static long pSeries_lpar_hpte_updatepp(unsigned long slot,
pr_devel(" update: avpnv=%016lx, hash=%016lx, f=%lx, psize: %d ...",
want_v, slot, flags, psize);
+ flags = (newpp & 7) | H_AVPN;
+ if (mmu_has_feature(MMU_FTR_KERNEL_RO))
+ /* Move pp0 into bit 8 (IBM 55) */
+ flags |= (newpp & HPTE_R_PP0) >> 55;
+
lpar_rc = plpar_pte_protect(flags, slot, want_v);
if (lpar_rc == H_NOT_FOUND) {
@@ -380,6 +385,10 @@ static void pSeries_lpar_hpte_updateboltedpp(unsigned long newpp,
BUG_ON(slot == -1);
flags = newpp & 7;
+ if (mmu_has_feature(MMU_FTR_KERNEL_RO))
+ /* Move pp0 into bit 8 (IBM 55) */
+ flags |= (newpp & HPTE_R_PP0) >> 55;
+
lpar_rc = plpar_pte_protect(flags, slot, 0);
BUG_ON(lpar_rc != H_SUCCESS);
diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c
index 5a0c7ba429ce..f7042ad492ba 100644
--- a/arch/powerpc/platforms/pseries/mobility.c
+++ b/arch/powerpc/platforms/pseries/mobility.c
@@ -226,10 +226,12 @@ static int add_dt_node(__be32 parent_phandle, __be32 drc_index)
return -ENOENT;
dn = dlpar_configure_connector(drc_index, parent_dn);
- if (!dn)
+ if (!dn) {
+ of_node_put(parent_dn);
return -ENOENT;
+ }
- rc = dlpar_attach_node(dn);
+ rc = dlpar_attach_node(dn, parent_dn);
if (rc)
dlpar_free_cc_nodes(dn);
@@ -349,8 +351,9 @@ void post_mobility_fixup(void)
return;
}
-static ssize_t migrate_store(struct class *class, struct class_attribute *attr,
- const char *buf, size_t count)
+static ssize_t migration_store(struct class *class,
+ struct class_attribute *attr, const char *buf,
+ size_t count)
{
u64 streamid;
int rc;
@@ -380,7 +383,7 @@ static ssize_t migrate_store(struct class *class, struct class_attribute *attr,
*/
#define MIGRATION_API_VERSION 1
-static CLASS_ATTR(migration, S_IWUSR, NULL, migrate_store);
+static CLASS_ATTR_WO(migration);
static CLASS_ATTR_STRING(api_version, S_IRUGO, __stringify(MIGRATION_API_VERSION));
static int __init mobility_sysfs_init(void)
diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c
index 326ef0dd6038..b7496948129e 100644
--- a/arch/powerpc/platforms/pseries/msi.c
+++ b/arch/powerpc/platforms/pseries/msi.c
@@ -132,19 +132,14 @@ static void rtas_teardown_msi_irqs(struct pci_dev *pdev)
static int check_req(struct pci_dev *pdev, int nvec, char *prop_name)
{
struct device_node *dn;
- struct pci_dn *pdn;
const __be32 *p;
u32 req_msi;
- pdn = pci_get_pdn(pdev);
- if (!pdn)
- return -ENODEV;
-
- dn = pdn->node;
+ dn = pci_device_to_OF_node(pdev);
p = of_get_property(dn, prop_name, NULL);
if (!p) {
- pr_debug("rtas_msi: No %s on %s\n", prop_name, dn->full_name);
+ pr_debug("rtas_msi: No %s on %pOF\n", prop_name, dn);
return -ENOENT;
}
@@ -182,8 +177,8 @@ static struct device_node *find_pe_total_msi(struct pci_dev *dev, int *total)
while (dn) {
p = of_get_property(dn, "ibm,pe-total-#msi", NULL);
if (p) {
- pr_debug("rtas_msi: found prop on dn %s\n",
- dn->full_name);
+ pr_debug("rtas_msi: found prop on dn %pOF\n",
+ dn);
*total = be32_to_cpup(p);
return dn;
}
@@ -197,7 +192,6 @@ static struct device_node *find_pe_total_msi(struct pci_dev *dev, int *total)
static struct device_node *find_pe_dn(struct pci_dev *dev, int *total)
{
struct device_node *dn;
- struct pci_dn *pdn;
struct eeh_dev *edev;
/* Found our PE and assume 8 at that point. */
@@ -210,8 +204,7 @@ static struct device_node *find_pe_dn(struct pci_dev *dev, int *total)
edev = pdn_to_eeh_dev(PCI_DN(dn));
if (edev->pe)
edev = list_first_entry(&edev->pe->edevs, struct eeh_dev, list);
- pdn = eeh_dev_to_pdn(edev);
- dn = pdn ? pdn->node : NULL;
+ dn = pci_device_to_OF_node(edev->pdev);
if (!dn)
return NULL;
@@ -222,7 +215,7 @@ static struct device_node *find_pe_dn(struct pci_dev *dev, int *total)
/* Hardcode of 8 for old firmwares */
*total = 8;
- pr_debug("rtas_msi: using PE dn %s\n", dn->full_name);
+ pr_debug("rtas_msi: using PE dn %pOF\n", dn);
return dn;
}
@@ -242,7 +235,7 @@ static void *count_non_bridge_devices(struct device_node *dn, void *data)
const __be32 *p;
u32 class;
- pr_debug("rtas_msi: counting %s\n", dn->full_name);
+ pr_debug("rtas_msi: counting %pOF\n", dn);
p = of_get_property(dn, "class-code", NULL);
class = p ? be32_to_cpup(p) : 0;
@@ -300,7 +293,7 @@ static int msi_quota_for_device(struct pci_dev *dev, int request)
goto out;
}
- pr_debug("rtas_msi: found PE %s\n", pe_dn->full_name);
+ pr_debug("rtas_msi: found PE %pOF\n", pe_dn);
memset(&counts, 0, sizeof(struct msi_counts));
diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c
index 547fd13e4f8e..561917fa54a8 100644
--- a/arch/powerpc/platforms/pseries/pci_dlpar.c
+++ b/arch/powerpc/platforms/pseries/pci_dlpar.c
@@ -38,7 +38,7 @@ struct pci_controller *init_phb_dynamic(struct device_node *dn)
{
struct pci_controller *phb;
- pr_debug("PCI: Initializing new hotplug PHB %s\n", dn->full_name);
+ pr_debug("PCI: Initializing new hotplug PHB %pOF\n", dn);
phb = pcibios_alloc_controller(dn);
if (!phb)
diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h
index 1361a9db534b..4470a3194311 100644
--- a/arch/powerpc/platforms/pseries/pseries.h
+++ b/arch/powerpc/platforms/pseries/pseries.h
@@ -46,7 +46,7 @@ extern void dlpar_free_cc_nodes(struct device_node *);
extern void dlpar_free_cc_property(struct property *);
extern struct device_node *dlpar_configure_connector(__be32,
struct device_node *);
-extern int dlpar_attach_node(struct device_node *);
+extern int dlpar_attach_node(struct device_node *, struct device_node *);
extern int dlpar_detach_node(struct device_node *);
extern int dlpar_acquire_drc(u32 drc_index);
extern int dlpar_release_drc(u32 drc_index);
diff --git a/arch/powerpc/platforms/pseries/pseries_energy.c b/arch/powerpc/platforms/pseries/pseries_energy.c
index 164a13d3998a..35c891aabef0 100644
--- a/arch/powerpc/platforms/pseries/pseries_energy.c
+++ b/arch/powerpc/platforms/pseries/pseries_energy.c
@@ -229,10 +229,9 @@ static int __init pseries_energy_init(void)
int cpu, err;
struct device *cpu_dev;
- if (!firmware_has_feature(FW_FEATURE_BEST_ENERGY)) {
- printk(KERN_INFO "Hypercall H_BEST_ENERGY not supported\n");
- return 0;
- }
+ if (!firmware_has_feature(FW_FEATURE_BEST_ENERGY))
+ return 0; /* H_BEST_ENERGY hcall not supported */
+
/* Create the sysfs files */
err = device_create_file(cpu_subsys.dev_root,
&attr_cpu_activate_hint_list);
diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c
index bb70b26334f0..4923ffe230cf 100644
--- a/arch/powerpc/platforms/pseries/ras.c
+++ b/arch/powerpc/platforms/pseries/ras.c
@@ -379,6 +379,21 @@ static void fwnmi_release_errinfo(void)
int pSeries_system_reset_exception(struct pt_regs *regs)
{
+#ifdef __LITTLE_ENDIAN__
+ /*
+ * Some firmware byteswaps SRR registers and gives incorrect SRR1. Try
+ * to detect the bad SRR1 pattern here. Flip the NIP back to correct
+ * endian for reporting purposes. Unfortunately the MSR can't be fixed,
+ * so clear it. It will be missing MSR_RI so we won't try to recover.
+ */
+ if ((be64_to_cpu(regs->msr) &
+ (MSR_LE|MSR_RI|MSR_DR|MSR_IR|MSR_ME|MSR_PR|
+ MSR_ILE|MSR_HV|MSR_SF)) == (MSR_DR|MSR_SF)) {
+ regs->nip = be64_to_cpu((__be64)regs->nip);
+ regs->msr = 0;
+ }
+#endif
+
if (fwnmi_active) {
struct rtas_error_log *errhdr = fwnmi_get_errinfo(regs);
if (errhdr) {
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index e5bf1e84047f..296c188fd5ca 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -82,7 +82,6 @@ static int pSeries_reconfig_remove_node(struct device_node *np)
of_detach_node(np);
of_node_put(parent);
- of_node_put(np); /* Must decrement the refcount */
return 0;
}
@@ -363,20 +362,13 @@ static int do_update_property(char *buf, size_t bufsize)
static ssize_t ofdt_write(struct file *file, const char __user *buf, size_t count,
loff_t *off)
{
- int rv = 0;
+ int rv;
char *kbuf;
char *tmp;
- if (!(kbuf = kmalloc(count + 1, GFP_KERNEL))) {
- rv = -ENOMEM;
- goto out;
- }
- if (copy_from_user(kbuf, buf, count)) {
- rv = -EFAULT;
- goto out;
- }
-
- kbuf[count] = '\0';
+ kbuf = memdup_user_nul(buf, count);
+ if (IS_ERR(kbuf))
+ return PTR_ERR(kbuf);
tmp = strchr(kbuf, ' ');
if (!tmp) {
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index b5d86426e97b..5f1beb8367ac 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -57,6 +57,7 @@
#include <asm/nvram.h>
#include <asm/pmc.h>
#include <asm/xics.h>
+#include <asm/xive.h>
#include <asm/ppc-pci.h>
#include <asm/i8259.h>
#include <asm/udbg.h>
@@ -176,8 +177,11 @@ static void __init pseries_setup_i8259_cascade(void)
static void __init pseries_init_irq(void)
{
- xics_init();
- pseries_setup_i8259_cascade();
+ /* Try using a XIVE if available, otherwise use a XICS */
+ if (!xive_spapr_init()) {
+ xics_init();
+ pseries_setup_i8259_cascade();
+ }
}
static void pseries_lpar_enable_pmcs(void)
@@ -722,7 +726,6 @@ define_machine(pseries) {
.pcibios_fixup = pSeries_final_fixup,
.restart = rtas_restart,
.halt = rtas_halt,
- .panic = rtas_os_term,
.get_boot_time = rtas_get_boot_time,
.get_rtc_time = rtas_get_rtc_time,
.set_rtc_time = rtas_set_rtc_time,
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index 52ca6b311d44..2e184829e5d4 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -41,6 +41,7 @@
#include <asm/vdso_datapage.h>
#include <asm/cputhreads.h>
#include <asm/xics.h>
+#include <asm/xive.h>
#include <asm/dbell.h>
#include <asm/plpar_wrappers.h>
#include <asm/code-patching.h>
@@ -136,7 +137,9 @@ out:
static void smp_setup_cpu(int cpu)
{
- if (cpu != boot_cpuid)
+ if (xive_enabled())
+ xive_smp_setup_cpu();
+ else if (cpu != boot_cpuid)
xics_setup_cpu();
if (firmware_has_feature(FW_FEATURE_SPLPAR))
@@ -151,7 +154,8 @@ static void smp_setup_cpu(int cpu)
static int smp_pSeries_kick_cpu(int nr)
{
- BUG_ON(nr < 0 || nr >= NR_CPUS);
+ if (nr < 0 || nr >= nr_cpu_ids)
+ return -EINVAL;
if (!smp_startup_cpu(nr))
return -ENOENT;
@@ -180,6 +184,13 @@ static int smp_pSeries_kick_cpu(int nr)
return 0;
}
+static int pseries_smp_prepare_cpu(int cpu)
+{
+ if (xive_enabled())
+ return xive_smp_prepare_cpu(cpu);
+ return 0;
+}
+
static void smp_pseries_cause_ipi(int cpu)
{
/* POWER9 should not use this handler */
@@ -210,7 +221,7 @@ static int pseries_cause_nmi_ipi(int cpu)
return 0;
}
-static __init void pSeries_smp_probe(void)
+static __init void pSeries_smp_probe_xics(void)
{
xics_smp_probe();
@@ -220,11 +231,24 @@ static __init void pSeries_smp_probe(void)
smp_ops->cause_ipi = icp_ops->cause_ipi;
}
+static __init void pSeries_smp_probe(void)
+{
+ if (xive_enabled())
+ /*
+ * Don't use P9 doorbells when XIVE is enabled. IPIs
+ * using MMIOs should be faster
+ */
+ xive_smp_probe();
+ else
+ pSeries_smp_probe_xics();
+}
+
static struct smp_ops_t pseries_smp_ops = {
.message_pass = NULL, /* Use smp_muxed_ipi_message_pass */
.cause_ipi = NULL, /* Filled at runtime by pSeries_smp_probe() */
.cause_nmi_ipi = pseries_cause_nmi_ipi,
.probe = pSeries_smp_probe,
+ .prepare_cpu = pseries_smp_prepare_cpu,
.kick_cpu = smp_pSeries_kick_cpu,
.setup_cpu = smp_setup_cpu,
.cpu_bootable = smp_generic_cpu_bootable,
diff --git a/arch/powerpc/platforms/pseries/suspend.c b/arch/powerpc/platforms/pseries/suspend.c
index e76aefae2aa2..89726f07d249 100644
--- a/arch/powerpc/platforms/pseries/suspend.c
+++ b/arch/powerpc/platforms/pseries/suspend.c
@@ -151,7 +151,7 @@ static ssize_t store_hibernate(struct device *dev,
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (!alloc_cpumask_var(&offline_mask, GFP_TEMPORARY))
+ if (!alloc_cpumask_var(&offline_mask, GFP_KERNEL))
return -ENOMEM;
stream_id = simple_strtoul(buf, NULL, 16);
diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c
index 28b09fd797ec..12277bc9fd9e 100644
--- a/arch/powerpc/platforms/pseries/vio.c
+++ b/arch/powerpc/platforms/pseries/vio.c
@@ -519,7 +519,7 @@ static dma_addr_t vio_dma_iommu_map_page(struct device *dev, struct page *page,
{
struct vio_dev *viodev = to_vio_dev(dev);
struct iommu_table *tbl;
- dma_addr_t ret = DMA_ERROR_CODE;
+ dma_addr_t ret = IOMMU_MAPPING_ERROR;
tbl = get_iommu_table_base(dev);
if (vio_cmo_alloc(viodev, roundup(size, IOMMU_PAGE_SIZE(tbl)))) {
@@ -625,6 +625,7 @@ static const struct dma_map_ops vio_dma_mapping_ops = {
.unmap_page = vio_dma_iommu_unmap_page,
.dma_supported = vio_dma_iommu_dma_supported,
.get_required_mask = vio_dma_get_required_mask,
+ .mapping_error = dma_iommu_mapping_error,
};
/**
@@ -948,21 +949,21 @@ static void vio_cmo_bus_init(void)
/* sysfs device functions and data structures for CMO */
#define viodev_cmo_rd_attr(name) \
-static ssize_t viodev_cmo_##name##_show(struct device *dev, \
+static ssize_t cmo_##name##_show(struct device *dev, \
struct device_attribute *attr, \
char *buf) \
{ \
return sprintf(buf, "%lu\n", to_vio_dev(dev)->cmo.name); \
}
-static ssize_t viodev_cmo_allocs_failed_show(struct device *dev,
+static ssize_t cmo_allocs_failed_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct vio_dev *viodev = to_vio_dev(dev);
return sprintf(buf, "%d\n", atomic_read(&viodev->cmo.allocs_failed));
}
-static ssize_t viodev_cmo_allocs_failed_reset(struct device *dev,
+static ssize_t cmo_allocs_failed_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct vio_dev *viodev = to_vio_dev(dev);
@@ -970,7 +971,7 @@ static ssize_t viodev_cmo_allocs_failed_reset(struct device *dev,
return count;
}
-static ssize_t viodev_cmo_desired_set(struct device *dev,
+static ssize_t cmo_desired_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct vio_dev *viodev = to_vio_dev(dev);
@@ -993,27 +994,37 @@ static ssize_t name_show(struct device *, struct device_attribute *, char *);
static ssize_t devspec_show(struct device *, struct device_attribute *, char *);
static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
char *buf);
-static struct device_attribute vio_cmo_dev_attrs[] = {
- __ATTR_RO(name),
- __ATTR_RO(devspec),
- __ATTR_RO(modalias),
- __ATTR(cmo_desired, S_IWUSR|S_IRUSR|S_IWGRP|S_IRGRP|S_IROTH,
- viodev_cmo_desired_show, viodev_cmo_desired_set),
- __ATTR(cmo_entitled, S_IRUGO, viodev_cmo_entitled_show, NULL),
- __ATTR(cmo_allocated, S_IRUGO, viodev_cmo_allocated_show, NULL),
- __ATTR(cmo_allocs_failed, S_IWUSR|S_IRUSR|S_IWGRP|S_IRGRP|S_IROTH,
- viodev_cmo_allocs_failed_show, viodev_cmo_allocs_failed_reset),
- __ATTR_NULL
+
+static struct device_attribute dev_attr_name;
+static struct device_attribute dev_attr_devspec;
+static struct device_attribute dev_attr_modalias;
+
+static DEVICE_ATTR_RO(cmo_entitled);
+static DEVICE_ATTR_RO(cmo_allocated);
+static DEVICE_ATTR_RW(cmo_desired);
+static DEVICE_ATTR_RW(cmo_allocs_failed);
+
+static struct attribute *vio_cmo_dev_attrs[] = {
+ &dev_attr_name.attr,
+ &dev_attr_devspec.attr,
+ &dev_attr_modalias.attr,
+ &dev_attr_cmo_entitled.attr,
+ &dev_attr_cmo_allocated.attr,
+ &dev_attr_cmo_desired.attr,
+ &dev_attr_cmo_allocs_failed.attr,
+ NULL,
};
+ATTRIBUTE_GROUPS(vio_cmo_dev);
/* sysfs bus functions and data structures for CMO */
#define viobus_cmo_rd_attr(name) \
-static ssize_t cmo_##name##_show(struct bus_type *bt, char *buf) \
+static ssize_t cmo_bus_##name##_show(struct bus_type *bt, char *buf) \
{ \
return sprintf(buf, "%lu\n", vio_cmo.name); \
} \
-static BUS_ATTR_RO(cmo_##name)
+static struct bus_attribute bus_attr_cmo_bus_##name = \
+ __ATTR(cmo_##name, S_IRUGO, cmo_bus_##name##_show, NULL)
#define viobus_cmo_pool_rd_attr(name, var) \
static ssize_t \
@@ -1051,11 +1062,11 @@ static ssize_t cmo_high_store(struct bus_type *bt, const char *buf,
static BUS_ATTR_RW(cmo_high);
static struct attribute *vio_bus_attrs[] = {
- &bus_attr_cmo_entitled.attr,
- &bus_attr_cmo_spare.attr,
- &bus_attr_cmo_min.attr,
- &bus_attr_cmo_desired.attr,
- &bus_attr_cmo_curr.attr,
+ &bus_attr_cmo_bus_entitled.attr,
+ &bus_attr_cmo_bus_spare.attr,
+ &bus_attr_cmo_bus_min.attr,
+ &bus_attr_cmo_bus_desired.attr,
+ &bus_attr_cmo_bus_curr.attr,
&bus_attr_cmo_high.attr,
&bus_attr_cmo_reserve_size.attr,
&bus_attr_cmo_excess_size.attr,
@@ -1066,7 +1077,7 @@ ATTRIBUTE_GROUPS(vio_bus);
static void vio_cmo_sysfs_init(void)
{
- vio_bus_type.dev_attrs = vio_cmo_dev_attrs;
+ vio_bus_type.dev_groups = vio_cmo_dev_groups;
vio_bus_type.bus_groups = vio_bus_groups;
}
#else /* CONFIG_PPC_SMLPAR */
@@ -1346,14 +1357,14 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
*/
parent_node = of_get_parent(of_node);
if (parent_node) {
- if (!strcmp(parent_node->full_name, "/ibm,platform-facilities"))
+ if (!strcmp(parent_node->type, "ibm,platform-facilities"))
family = PFO;
- else if (!strcmp(parent_node->full_name, "/vdevice"))
+ else if (!strcmp(parent_node->type, "vdevice"))
family = VDEVICE;
else {
- pr_warn("%s: parent(%s) of %s not recognized.\n",
+ pr_warn("%s: parent(%pOF) of %s not recognized.\n",
__func__,
- parent_node->full_name,
+ parent_node,
of_node_name);
of_node_put(parent_node);
return NULL;
@@ -1537,14 +1548,16 @@ static ssize_t name_show(struct device *dev,
{
return sprintf(buf, "%s\n", to_vio_dev(dev)->name);
}
+static DEVICE_ATTR_RO(name);
static ssize_t devspec_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct device_node *of_node = dev->of_node;
- return sprintf(buf, "%s\n", of_node_full_name(of_node));
+ return sprintf(buf, "%pOF\n", of_node);
}
+static DEVICE_ATTR_RO(devspec);
static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
char *buf)
@@ -1566,13 +1579,15 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
return sprintf(buf, "vio:T%sS%s\n", vio_dev->type, cp);
}
+static DEVICE_ATTR_RO(modalias);
-static struct device_attribute vio_dev_attrs[] = {
- __ATTR_RO(name),
- __ATTR_RO(devspec),
- __ATTR_RO(modalias),
- __ATTR_NULL
+static struct attribute *vio_dev_attrs[] = {
+ &dev_attr_name.attr,
+ &dev_attr_devspec.attr,
+ &dev_attr_modalias.attr,
+ NULL,
};
+ATTRIBUTE_GROUPS(vio_dev);
void vio_unregister_device(struct vio_dev *viodev)
{
@@ -1608,7 +1623,7 @@ static int vio_hotplug(struct device *dev, struct kobj_uevent_env *env)
struct bus_type vio_bus_type = {
.name = "vio",
- .dev_attrs = vio_dev_attrs,
+ .dev_groups = vio_dev_groups,
.uevent = vio_hotplug,
.match = vio_bus_match,
.probe = vio_bus_probe,
diff --git a/arch/powerpc/purgatory/trampoline.S b/arch/powerpc/purgatory/trampoline.S
index 3696ea6c4826..4aad9dd10ace 100644
--- a/arch/powerpc/purgatory/trampoline.S
+++ b/arch/powerpc/purgatory/trampoline.S
@@ -67,7 +67,7 @@ master:
mr %r16,%r3 /* save dt address in reg16 */
li %r4,20
LWZX_BE %r6,%r3,%r4 /* fetch __be32 version number at byte 20 */
- cmpwi %r0,%r6,2 /* v2 or later? */
+ cmpwi %cr0,%r6,2 /* v2 or later? */
blt 1f
li %r4,28
STWX_BE %r17,%r3,%r4 /* Store my cpu as __be32 at byte 28 */
@@ -104,13 +104,13 @@ master:
.balign 8
.globl kernel
kernel:
- .llong 0x0
+ .8byte 0x0
.size kernel, . - kernel
.balign 8
.globl dt_offset
dt_offset:
- .llong 0x0
+ .8byte 0x0
.size dt_offset, . - dt_offset
diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile
index c0ae11d4f62f..79416fa2e3ba 100644
--- a/arch/powerpc/sysdev/Makefile
+++ b/arch/powerpc/sysdev/Makefile
@@ -36,25 +36,15 @@ obj-$(CONFIG_AXON_RAM) += axonram.o
obj-$(CONFIG_PPC_INDIRECT_PCI) += indirect_pci.o
obj-$(CONFIG_PPC_I8259) += i8259.o
obj-$(CONFIG_IPIC) += ipic.o
-obj-$(CONFIG_4xx) += uic.o
-obj-$(CONFIG_PPC4xx_OCM) += ppc4xx_ocm.o
-obj-$(CONFIG_4xx_SOC) += ppc4xx_soc.o
obj-$(CONFIG_XILINX_VIRTEX) += xilinx_intc.o
obj-$(CONFIG_XILINX_PCI) += xilinx_pci.o
obj-$(CONFIG_OF_RTC) += of_rtc.o
-ifeq ($(CONFIG_PCI),y)
-obj-$(CONFIG_4xx) += ppc4xx_pci.o
-endif
-obj-$(CONFIG_PPC4xx_HSTA_MSI) += ppc4xx_hsta_msi.o
-obj-$(CONFIG_PPC4xx_MSI) += ppc4xx_msi.o
-obj-$(CONFIG_PPC4xx_CPM) += ppc4xx_cpm.o
-obj-$(CONFIG_PPC4xx_GPIO) += ppc4xx_gpio.o
obj-$(CONFIG_CPM) += cpm_common.o
+obj-$(CONFIG_CPM1) += cpm1.o
obj-$(CONFIG_CPM2) += cpm2.o cpm2_pic.o
obj-$(CONFIG_QUICC_ENGINE) += cpm_common.o
obj-$(CONFIG_PPC_DCR) += dcr.o
-obj-$(CONFIG_8xx) += mpc8xx_pic.o cpm1.o
obj-$(CONFIG_UCODE_PATCH) += micropatch.o
obj-$(CONFIG_PPC_MPC512x) += mpc5xxx_clocks.o
diff --git a/arch/powerpc/sysdev/axonram.c b/arch/powerpc/sysdev/axonram.c
index a7fe5fee744f..c60e84e4558d 100644
--- a/arch/powerpc/sysdev/axonram.c
+++ b/arch/powerpc/sysdev/axonram.c
@@ -45,6 +45,7 @@
#include <linux/of_device.h>
#include <linux/of_platform.h>
#include <linux/pfn_t.h>
+#include <linux/uio.h>
#include <asm/page.h>
#include <asm/prom.h>
@@ -109,7 +110,7 @@ axon_ram_irq_handler(int irq, void *dev)
static blk_qc_t
axon_ram_make_request(struct request_queue *queue, struct bio *bio)
{
- struct axon_ram_bank *bank = bio->bi_bdev->bd_disk->private_data;
+ struct axon_ram_bank *bank = bio->bi_disk->private_data;
unsigned long phys_mem, phys_end;
void *user_mem;
struct bio_vec vec;
@@ -163,8 +164,15 @@ axon_ram_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, long nr_pa
return __axon_ram_direct_access(bank, pgoff, nr_pages, kaddr, pfn);
}
+static size_t axon_ram_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff,
+ void *addr, size_t bytes, struct iov_iter *i)
+{
+ return copy_from_iter(addr, bytes, i);
+}
+
static const struct dax_operations axon_ram_dax_ops = {
.direct_access = axon_ram_dax_direct_access,
+ .copy_from_iter = axon_ram_copy_from_iter,
};
/**
@@ -180,15 +188,12 @@ static int axon_ram_probe(struct platform_device *device)
axon_ram_bank_id++;
- dev_info(&device->dev, "Found memory controller on %s\n",
- device->dev.of_node->full_name);
+ dev_info(&device->dev, "Found memory controller on %pOF\n",
+ device->dev.of_node);
- bank = kzalloc(sizeof(struct axon_ram_bank), GFP_KERNEL);
- if (bank == NULL) {
- dev_err(&device->dev, "Out of memory\n");
- rc = -ENOMEM;
- goto failed;
- }
+ bank = kzalloc(sizeof(*bank), GFP_KERNEL);
+ if (!bank)
+ return -ENOMEM;
device->dev.platform_data = bank;
@@ -284,25 +289,22 @@ static int axon_ram_probe(struct platform_device *device)
return 0;
failed:
- if (bank != NULL) {
- if (bank->irq_id)
- free_irq(bank->irq_id, device);
- if (bank->disk != NULL) {
- if (bank->disk->major > 0)
- unregister_blkdev(bank->disk->major,
- bank->disk->disk_name);
- if (bank->disk->flags & GENHD_FL_UP)
- del_gendisk(bank->disk);
- put_disk(bank->disk);
- }
- kill_dax(bank->dax_dev);
- put_dax(bank->dax_dev);
- device->dev.platform_data = NULL;
- if (bank->io_addr != 0)
- iounmap((void __iomem *) bank->io_addr);
- kfree(bank);
+ if (bank->irq_id)
+ free_irq(bank->irq_id, device);
+ if (bank->disk != NULL) {
+ if (bank->disk->major > 0)
+ unregister_blkdev(bank->disk->major,
+ bank->disk->disk_name);
+ if (bank->disk->flags & GENHD_FL_UP)
+ del_gendisk(bank->disk);
+ put_disk(bank->disk);
}
-
+ kill_dax(bank->dax_dev);
+ put_dax(bank->dax_dev);
+ device->dev.platform_data = NULL;
+ if (bank->io_addr != 0)
+ iounmap((void __iomem *) bank->io_addr);
+ kfree(bank);
return rc;
}
diff --git a/arch/powerpc/sysdev/dcr.c b/arch/powerpc/sysdev/dcr.c
index 121e26fffd50..d72eda568b7d 100644
--- a/arch/powerpc/sysdev/dcr.c
+++ b/arch/powerpc/sysdev/dcr.c
@@ -195,8 +195,8 @@ dcr_host_mmio_t dcr_map_mmio(struct device_node *dev,
dcr_host_mmio_t ret = { .token = NULL, .stride = 0, .base = dcr_n };
u64 addr;
- pr_debug("dcr_map(%s, 0x%x, 0x%x)\n",
- dev->full_name, dcr_n, dcr_c);
+ pr_debug("dcr_map(%pOF, 0x%x, 0x%x)\n",
+ dev, dcr_n, dcr_c);
addr = of_translate_dcr_address(dev, dcr_n, &ret.stride);
pr_debug("translates to addr: 0x%llx, stride: 0x%x\n",
diff --git a/arch/powerpc/sysdev/fsl_85xx_cache_sram.c b/arch/powerpc/sysdev/fsl_85xx_cache_sram.c
index 37a69097e022..00ccf3e4fcb4 100644
--- a/arch/powerpc/sysdev/fsl_85xx_cache_sram.c
+++ b/arch/powerpc/sysdev/fsl_85xx_cache_sram.c
@@ -101,8 +101,8 @@ int __init instantiate_cache_sram(struct platform_device *dev,
if (!request_mem_region(cache_sram->base_phys, cache_sram->size,
"fsl_85xx_cache_sram")) {
- dev_err(&dev->dev, "%s: request memory failed\n",
- dev->dev.of_node->full_name);
+ dev_err(&dev->dev, "%pOF: request memory failed\n",
+ dev->dev.of_node);
ret = -ENXIO;
goto out_free;
}
@@ -110,16 +110,16 @@ int __init instantiate_cache_sram(struct platform_device *dev,
cache_sram->base_virt = ioremap_prot(cache_sram->base_phys,
cache_sram->size, _PAGE_COHERENT | PAGE_KERNEL);
if (!cache_sram->base_virt) {
- dev_err(&dev->dev, "%s: ioremap_prot failed\n",
- dev->dev.of_node->full_name);
+ dev_err(&dev->dev, "%pOF: ioremap_prot failed\n",
+ dev->dev.of_node);
ret = -ENOMEM;
goto out_release;
}
cache_sram->rh = rh_create(sizeof(unsigned int));
if (IS_ERR(cache_sram->rh)) {
- dev_err(&dev->dev, "%s: Unable to create remote heap\n",
- dev->dev.of_node->full_name);
+ dev_err(&dev->dev, "%pOF: Unable to create remote heap\n",
+ dev->dev.of_node);
ret = PTR_ERR(cache_sram->rh);
goto out_unmap;
}
diff --git a/arch/powerpc/sysdev/fsl_gtm.c b/arch/powerpc/sysdev/fsl_gtm.c
index a6f0b96ce2c9..d902306f4718 100644
--- a/arch/powerpc/sysdev/fsl_gtm.c
+++ b/arch/powerpc/sysdev/fsl_gtm.c
@@ -388,8 +388,8 @@ static int __init fsl_gtm_init(void)
gtm = kzalloc(sizeof(*gtm), GFP_KERNEL);
if (!gtm) {
- pr_err("%s: unable to allocate memory\n",
- np->full_name);
+ pr_err("%pOF: unable to allocate memory\n",
+ np);
continue;
}
@@ -397,7 +397,7 @@ static int __init fsl_gtm_init(void)
clock = of_get_property(np, "clock-frequency", &size);
if (!clock || size != sizeof(*clock)) {
- pr_err("%s: no clock-frequency\n", np->full_name);
+ pr_err("%pOF: no clock-frequency\n", np);
goto err;
}
gtm->clock = *clock;
@@ -407,8 +407,8 @@ static int __init fsl_gtm_init(void)
irq = irq_of_parse_and_map(np, i);
if (!irq) {
- pr_err("%s: not enough interrupts specified\n",
- np->full_name);
+ pr_err("%pOF: not enough interrupts specified\n",
+ np);
goto err;
}
gtm->timers[i].irq = irq;
@@ -417,8 +417,8 @@ static int __init fsl_gtm_init(void)
gtm->regs = of_iomap(np, 0);
if (!gtm->regs) {
- pr_err("%s: unable to iomap registers\n",
- np->full_name);
+ pr_err("%pOF: unable to iomap registers\n",
+ np);
goto err;
}
diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c
index 8a244828782e..44cbf4c12ea1 100644
--- a/arch/powerpc/sysdev/fsl_msi.c
+++ b/arch/powerpc/sysdev/fsl_msi.c
@@ -214,8 +214,8 @@ static int fsl_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
phandle = np->phandle;
else {
dev_err(&pdev->dev,
- "node %s has an invalid fsl,msi phandle %u\n",
- hose->dn->full_name, np->phandle);
+ "node %pOF has an invalid fsl,msi phandle %u\n",
+ hose->dn, np->phandle);
return -EINVAL;
}
}
@@ -438,16 +438,16 @@ static int fsl_of_msi_probe(struct platform_device *dev)
if ((features->fsl_pic_ip & FSL_PIC_IP_MASK) != FSL_PIC_IP_VMPIC) {
err = of_address_to_resource(dev->dev.of_node, 0, &res);
if (err) {
- dev_err(&dev->dev, "invalid resource for node %s\n",
- dev->dev.of_node->full_name);
+ dev_err(&dev->dev, "invalid resource for node %pOF\n",
+ dev->dev.of_node);
goto error_out;
}
msi->msi_regs = ioremap(res.start, resource_size(&res));
if (!msi->msi_regs) {
err = -ENOMEM;
- dev_err(&dev->dev, "could not map node %s\n",
- dev->dev.of_node->full_name);
+ dev_err(&dev->dev, "could not map node %pOF\n",
+ dev->dev.of_node);
goto error_out;
}
msi->msiir_offset =
@@ -522,8 +522,8 @@ static int fsl_of_msi_probe(struct platform_device *dev)
for (irq_index = 0, i = 0; i < len / (2 * sizeof(u32)); i++) {
if (p[i * 2] % IRQS_PER_MSI_REG ||
p[i * 2 + 1] % IRQS_PER_MSI_REG) {
- pr_warn("%s: %s: msi available range of %u at %u is not IRQ-aligned\n",
- __func__, dev->dev.of_node->full_name,
+ pr_warn("%s: %pOF: msi available range of %u at %u is not IRQ-aligned\n",
+ __func__, dev->dev.of_node,
p[i * 2 + 1], p[i * 2]);
err = -EINVAL;
goto error_out;
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index d3a597456b6e..22d98057f773 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -202,7 +202,6 @@ static void setup_pci_atmu(struct pci_controller *hose)
u32 pcicsrbar = 0, pcicsrbar_sz;
u32 piwar = PIWAR_EN | PIWAR_PF | PIWAR_TGI_LOCAL |
PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP;
- const char *name = hose->dn->full_name;
const u64 *reg;
int len;
bool setup_inbound;
@@ -290,12 +289,12 @@ static void setup_pci_atmu(struct pci_controller *hose)
paddr_lo -= offset;
if (paddr_hi == paddr_lo) {
- pr_err("%s: No outbound window space\n", name);
+ pr_err("%pOF: No outbound window space\n", hose->dn);
return;
}
if (paddr_lo == 0) {
- pr_err("%s: No space for inbound window\n", name);
+ pr_err("%pOF: No space for inbound window\n", hose->dn);
return;
}
@@ -313,7 +312,7 @@ static void setup_pci_atmu(struct pci_controller *hose)
paddr_lo = min(paddr_lo, (u64)pcicsrbar);
- pr_info("%s: PCICSRBAR @ 0x%x\n", name, pcicsrbar);
+ pr_info("%pOF: PCICSRBAR @ 0x%x\n", hose->dn, pcicsrbar);
/* Setup inbound mem window */
mem = memblock_end_of_DRAM();
@@ -336,12 +335,12 @@ static void setup_pci_atmu(struct pci_controller *hose)
u64 address = be64_to_cpup(reg);
if ((address >= mem) && (address < (mem + PAGE_SIZE))) {
- pr_info("%s: extending DDR ATMU to cover MSIIR", name);
+ pr_info("%pOF: extending DDR ATMU to cover MSIIR", hose->dn);
mem += PAGE_SIZE;
} else {
/* TODO: Create a new ATMU for MSIIR */
- pr_warn("%s: msi-address-64 address of %llx is "
- "unsupported\n", name, address);
+ pr_warn("%pOF: msi-address-64 address of %llx is "
+ "unsupported\n", hose->dn, address);
}
}
@@ -354,8 +353,8 @@ static void setup_pci_atmu(struct pci_controller *hose)
if ((1ull << mem_log) != mem) {
mem_log++;
if ((1ull << mem_log) > mem)
- pr_info("%s: Setting PCI inbound window "
- "greater than memory size\n", name);
+ pr_info("%pOF: Setting PCI inbound window "
+ "greater than memory size\n", hose->dn);
}
piwar |= ((mem_log - 1) & PIWAR_SZ_MASK);
@@ -402,7 +401,7 @@ static void setup_pci_atmu(struct pci_controller *hose)
*/
ppc_md.dma_set_mask = fsl_pci_dma_set_mask;
- pr_info("%s: Setup 64-bit PCI DMA window\n", name);
+ pr_info("%pOF: Setup 64-bit PCI DMA window\n", hose->dn);
}
} else {
u64 paddr = 0;
@@ -443,18 +442,18 @@ static void setup_pci_atmu(struct pci_controller *hose)
#ifdef CONFIG_SWIOTLB
ppc_swiotlb_enable = 1;
#else
- pr_err("%s: ERROR: Memory size exceeds PCI ATMU ability to "
+ pr_err("%pOF: ERROR: Memory size exceeds PCI ATMU ability to "
"map - enable CONFIG_SWIOTLB to avoid dma errors.\n",
- name);
+ hose->dn);
#endif
/* adjusting outbound windows could reclaim space in mem map */
if (paddr_hi < 0xffffffffull)
- pr_warning("%s: WARNING: Outbound window cfg leaves "
+ pr_warning("%pOF: WARNING: Outbound window cfg leaves "
"gaps in memory map. Adjusting the memory map "
"could reduce unnecessary bounce buffering.\n",
- name);
+ hose->dn);
- pr_info("%s: DMA window size is 0x%llx\n", name,
+ pr_info("%pOF: DMA window size is 0x%llx\n", hose->dn,
(u64)hose->dma_window_size);
}
}
@@ -532,11 +531,11 @@ int fsl_add_bridge(struct platform_device *pdev, int is_primary)
dev = pdev->dev.of_node;
if (!of_device_is_available(dev)) {
- pr_warning("%s: disabled\n", dev->full_name);
+ pr_warning("%pOF: disabled\n", dev);
return -ENODEV;
}
- pr_debug("Adding PCI host bridge %s\n", dev->full_name);
+ pr_debug("Adding PCI host bridge %pOF\n", dev);
/* Fetch host bridge registers address */
if (of_address_to_resource(dev, 0, &rsrc)) {
@@ -547,8 +546,8 @@ int fsl_add_bridge(struct platform_device *pdev, int is_primary)
/* Get bus range if any */
bus_range = of_get_property(dev, "bus-range", &len);
if (bus_range == NULL || len < 2 * sizeof(int))
- printk(KERN_WARNING "Can't get bus-range for %s, assume"
- " bus 0\n", dev->full_name);
+ printk(KERN_WARNING "Can't get bus-range for %pOF, assume"
+ " bus 0\n", dev);
pci_add_flags(PCI_REASSIGN_ALL_BUS);
hose = pcibios_alloc_controller(dev);
@@ -809,11 +808,11 @@ int __init mpc83xx_add_bridge(struct device_node *dev)
is_mpc83xx_pci = 1;
if (!of_device_is_available(dev)) {
- pr_warning("%s: disabled by the firmware.\n",
- dev->full_name);
+ pr_warning("%pOF: disabled by the firmware.\n",
+ dev);
return -ENODEV;
}
- pr_debug("Adding PCI host bridge %s\n", dev->full_name);
+ pr_debug("Adding PCI host bridge %pOF\n", dev);
/* Fetch host bridge registers address */
if (of_address_to_resource(dev, 0, &rsrc_reg)) {
@@ -848,8 +847,8 @@ int __init mpc83xx_add_bridge(struct device_node *dev)
/* Get bus range if any */
bus_range = of_get_property(dev, "bus-range", &len);
if (bus_range == NULL || len < 2 * sizeof(int)) {
- printk(KERN_WARNING "Can't get bus-range for %s, assume"
- " bus 0\n", dev->full_name);
+ printk(KERN_WARNING "Can't get bus-range for %pOF, assume"
+ " bus 0\n", dev);
}
pci_add_flags(PCI_REASSIGN_ALL_BUS);
diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c
index 1c41c51f22cb..5011ffea4e4b 100644
--- a/arch/powerpc/sysdev/fsl_rio.c
+++ b/arch/powerpc/sysdev/fsl_rio.c
@@ -71,6 +71,8 @@
#define RIWAR_WRTYP_ALLOC 0x00006000
#define RIWAR_SIZE_MASK 0x0000003F
+static DEFINE_SPINLOCK(fsl_rio_config_lock);
+
#define __fsl_read_rio_config(x, addr, err, op) \
__asm__ __volatile__( \
"1: "op" %1,0(%2)\n" \
@@ -184,6 +186,7 @@ fsl_rio_config_read(struct rio_mport *mport, int index, u16 destid,
u8 hopcount, u32 offset, int len, u32 *val)
{
struct rio_priv *priv = mport->priv;
+ unsigned long flags;
u8 *data;
u32 rval, err = 0;
@@ -197,6 +200,8 @@ fsl_rio_config_read(struct rio_mport *mport, int index, u16 destid,
if (offset > (0x1000000 - len) || !IS_ALIGNED(offset, len))
return -EINVAL;
+ spin_lock_irqsave(&fsl_rio_config_lock, flags);
+
out_be32(&priv->maint_atmu_regs->rowtar,
(destid << 22) | (hopcount << 12) | (offset >> 12));
out_be32(&priv->maint_atmu_regs->rowtear, (destid >> 10));
@@ -213,6 +218,7 @@ fsl_rio_config_read(struct rio_mport *mport, int index, u16 destid,
__fsl_read_rio_config(rval, data, err, "lwz");
break;
default:
+ spin_unlock_irqrestore(&fsl_rio_config_lock, flags);
return -EINVAL;
}
@@ -221,6 +227,7 @@ fsl_rio_config_read(struct rio_mport *mport, int index, u16 destid,
err, destid, hopcount, offset);
}
+ spin_unlock_irqrestore(&fsl_rio_config_lock, flags);
*val = rval;
return err;
@@ -244,7 +251,10 @@ fsl_rio_config_write(struct rio_mport *mport, int index, u16 destid,
u8 hopcount, u32 offset, int len, u32 val)
{
struct rio_priv *priv = mport->priv;
+ unsigned long flags;
u8 *data;
+ int ret = 0;
+
pr_debug
("fsl_rio_config_write:"
" index %d destid %d hopcount %d offset %8.8x len %d val %8.8x\n",
@@ -255,6 +265,8 @@ fsl_rio_config_write(struct rio_mport *mport, int index, u16 destid,
if (offset > (0x1000000 - len) || !IS_ALIGNED(offset, len))
return -EINVAL;
+ spin_lock_irqsave(&fsl_rio_config_lock, flags);
+
out_be32(&priv->maint_atmu_regs->rowtar,
(destid << 22) | (hopcount << 12) | (offset >> 12));
out_be32(&priv->maint_atmu_regs->rowtear, (destid >> 10));
@@ -271,10 +283,11 @@ fsl_rio_config_write(struct rio_mport *mport, int index, u16 destid,
out_be32((u32 *) data, val);
break;
default:
- return -EINVAL;
+ ret = -EINVAL;
}
+ spin_unlock_irqrestore(&fsl_rio_config_lock, flags);
- return 0;
+ return ret;
}
static void fsl_rio_inbound_mem_init(struct rio_priv *priv)
@@ -450,12 +463,12 @@ int fsl_rio_setup(struct platform_device *dev)
rc = of_address_to_resource(dev->dev.of_node, 0, &regs);
if (rc) {
- dev_err(&dev->dev, "Can't get %s property 'reg'\n",
- dev->dev.of_node->full_name);
+ dev_err(&dev->dev, "Can't get %pOF property 'reg'\n",
+ dev->dev.of_node);
return -EFAULT;
}
- dev_info(&dev->dev, "Of-device full name %s\n",
- dev->dev.of_node->full_name);
+ dev_info(&dev->dev, "Of-device full name %pOF\n",
+ dev->dev.of_node);
dev_info(&dev->dev, "Regs: %pR\n", &regs);
rio_regs_win = ioremap(regs.start, resource_size(&regs));
@@ -494,8 +507,8 @@ int fsl_rio_setup(struct platform_device *dev)
}
rc = of_address_to_resource(rmu_node, 0, &rmu_regs);
if (rc) {
- dev_err(&dev->dev, "Can't get %s property 'reg'\n",
- rmu_node->full_name);
+ dev_err(&dev->dev, "Can't get %pOF property 'reg'\n",
+ rmu_node);
goto err_rmu;
}
rmu_regs_win = ioremap(rmu_regs.start, resource_size(&rmu_regs));
@@ -529,8 +542,8 @@ int fsl_rio_setup(struct platform_device *dev)
aw = of_n_addr_cells(np);
dt_range = of_get_property(np, "reg", &rlen);
if (!dt_range) {
- pr_err("%s: unable to find 'reg' property\n",
- np->full_name);
+ pr_err("%pOF: unable to find 'reg' property\n",
+ np);
rc = -ENOMEM;
goto err_pw;
}
@@ -557,8 +570,8 @@ int fsl_rio_setup(struct platform_device *dev)
aw = of_n_addr_cells(np);
dt_range = of_get_property(np, "reg", &rlen);
if (!dt_range) {
- pr_err("%s: unable to find 'reg' property\n",
- np->full_name);
+ pr_err("%pOF: unable to find 'reg' property\n",
+ np);
rc = -ENOMEM;
goto err;
}
@@ -569,15 +582,15 @@ int fsl_rio_setup(struct platform_device *dev)
for_each_child_of_node(dev->dev.of_node, np) {
port_index = of_get_property(np, "cell-index", NULL);
if (!port_index) {
- dev_err(&dev->dev, "Can't get %s property 'cell-index'\n",
- np->full_name);
+ dev_err(&dev->dev, "Can't get %pOF property 'cell-index'\n",
+ np);
continue;
}
dt_range = of_get_property(np, "ranges", &rlen);
if (!dt_range) {
- dev_err(&dev->dev, "Can't get %s property 'ranges'\n",
- np->full_name);
+ dev_err(&dev->dev, "Can't get %pOF property 'ranges'\n",
+ np);
continue;
}
@@ -598,8 +611,8 @@ int fsl_rio_setup(struct platform_device *dev)
range_start = of_read_number(dt_range + aw, paw);
range_size = of_read_number(dt_range + aw + paw, sw);
- dev_info(&dev->dev, "%s: LAW start 0x%016llx, size 0x%016llx.\n",
- np->full_name, range_start, range_size);
+ dev_info(&dev->dev, "%pOF: LAW start 0x%016llx, size 0x%016llx.\n",
+ np, range_start, range_size);
port = kzalloc(sizeof(struct rio_mport), GFP_KERNEL);
if (!port)
@@ -757,8 +770,8 @@ err_rio_regs:
*/
static int fsl_of_rio_rpn_probe(struct platform_device *dev)
{
- printk(KERN_INFO "Setting up RapidIO peer-to-peer network %s\n",
- dev->dev.of_node->full_name);
+ printk(KERN_INFO "Setting up RapidIO peer-to-peer network %pOF\n",
+ dev->dev.of_node);
return fsl_rio_setup(dev);
};
diff --git a/arch/powerpc/sysdev/fsl_rmu.c b/arch/powerpc/sysdev/fsl_rmu.c
index c1826de4e749..88b35a3dcdc5 100644
--- a/arch/powerpc/sysdev/fsl_rmu.c
+++ b/arch/powerpc/sysdev/fsl_rmu.c
@@ -104,6 +104,8 @@
#define DOORBELL_MESSAGE_SIZE 0x08
+static DEFINE_SPINLOCK(fsl_rio_doorbell_lock);
+
struct rio_msg_regs {
u32 omr;
u32 osr;
@@ -626,9 +628,13 @@ err_out:
int fsl_rio_doorbell_send(struct rio_mport *mport,
int index, u16 destid, u16 data)
{
+ unsigned long flags;
+
pr_debug("fsl_doorbell_send: index %d destid %4.4x data %4.4x\n",
index, destid, data);
+ spin_lock_irqsave(&fsl_rio_doorbell_lock, flags);
+
/* In the serial version silicons, such as MPC8548, MPC8641,
* below operations is must be.
*/
@@ -638,6 +644,8 @@ int fsl_rio_doorbell_send(struct rio_mport *mport,
out_be32(&dbell->dbell_regs->oddatr, (index << 20) | data);
out_be32(&dbell->dbell_regs->odmr, 0x00000001);
+ spin_unlock_irqrestore(&fsl_rio_doorbell_lock, flags);
+
return 0;
}
@@ -1074,8 +1082,8 @@ int fsl_rio_setup_rmu(struct rio_mport *mport, struct device_node *node)
priv = mport->priv;
if (!node) {
- dev_warn(priv->dev, "Can't get %s property 'fsl,rmu'\n",
- priv->dev->of_node->full_name);
+ dev_warn(priv->dev, "Can't get %pOF property 'fsl,rmu'\n",
+ priv->dev->of_node);
return -EINVAL;
}
@@ -1086,8 +1094,8 @@ int fsl_rio_setup_rmu(struct rio_mport *mport, struct device_node *node)
aw = of_n_addr_cells(node);
msg_addr = of_get_property(node, "reg", &mlen);
if (!msg_addr) {
- pr_err("%s: unable to find 'reg' property of message-unit\n",
- node->full_name);
+ pr_err("%pOF: unable to find 'reg' property of message-unit\n",
+ node);
kfree(rmu);
return -ENOMEM;
}
@@ -1098,8 +1106,8 @@ int fsl_rio_setup_rmu(struct rio_mport *mport, struct device_node *node)
rmu->txirq = irq_of_parse_and_map(node, 0);
rmu->rxirq = irq_of_parse_and_map(node, 1);
- printk(KERN_INFO "%s: txirq: %d, rxirq %d\n",
- node->full_name, rmu->txirq, rmu->rxirq);
+ printk(KERN_INFO "%pOF: txirq: %d, rxirq %d\n",
+ node, rmu->txirq, rmu->rxirq);
priv->rmm_handle = rmu;
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index 19101f9cfcfc..1f614fb2be56 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -98,7 +98,7 @@ u32 fsl_get_sys_freq(void)
}
EXPORT_SYMBOL(fsl_get_sys_freq);
-#if defined(CONFIG_CPM2) || defined(CONFIG_QUICC_ENGINE) || defined(CONFIG_8xx)
+#if defined(CONFIG_CPM) || defined(CONFIG_QUICC_ENGINE)
u32 get_brgfreq(void)
{
diff --git a/arch/powerpc/sysdev/fsl_soc.h b/arch/powerpc/sysdev/fsl_soc.h
index d73daa4f0ccf..2640446f8bc4 100644
--- a/arch/powerpc/sysdev/fsl_soc.h
+++ b/arch/powerpc/sysdev/fsl_soc.h
@@ -7,7 +7,7 @@
struct spi_device;
extern phys_addr_t get_immrbase(void);
-#if defined(CONFIG_CPM2) || defined(CONFIG_QUICC_ENGINE) || defined(CONFIG_8xx)
+#if defined(CONFIG_CPM) || defined(CONFIG_QUICC_ENGINE)
extern u32 get_brgfreq(void);
extern u32 get_baudrate(void);
#else
diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
index f267ee0afc08..16f1edd78c40 100644
--- a/arch/powerpc/sysdev/ipic.c
+++ b/arch/powerpc/sysdev/ipic.c
@@ -315,6 +315,7 @@ static struct ipic_info ipic_info[] = {
.prio_mask = 7,
},
[48] = {
+ .ack = IPIC_SEPNR,
.mask = IPIC_SEMSR,
.prio = IPIC_SMPRR_A,
.force = IPIC_SEFCR,
diff --git a/arch/powerpc/sysdev/mpc8xx_pic.c b/arch/powerpc/sysdev/mpc8xx_pic.c
deleted file mode 100644
index 3e828b20c21e..000000000000
--- a/arch/powerpc/sysdev/mpc8xx_pic.c
+++ /dev/null
@@ -1,163 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/stddef.h>
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <linux/irq.h>
-#include <linux/dma-mapping.h>
-#include <asm/prom.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-#include <asm/8xx_immap.h>
-
-#include "mpc8xx_pic.h"
-
-
-#define PIC_VEC_SPURRIOUS 15
-
-extern int cpm_get_irq(struct pt_regs *regs);
-
-static struct irq_domain *mpc8xx_pic_host;
-static unsigned long mpc8xx_cached_irq_mask;
-static sysconf8xx_t __iomem *siu_reg;
-
-static inline unsigned long mpc8xx_irqd_to_bit(struct irq_data *d)
-{
- return 0x80000000 >> irqd_to_hwirq(d);
-}
-
-static void mpc8xx_unmask_irq(struct irq_data *d)
-{
- mpc8xx_cached_irq_mask |= mpc8xx_irqd_to_bit(d);
- out_be32(&siu_reg->sc_simask, mpc8xx_cached_irq_mask);
-}
-
-static void mpc8xx_mask_irq(struct irq_data *d)
-{
- mpc8xx_cached_irq_mask &= ~mpc8xx_irqd_to_bit(d);
- out_be32(&siu_reg->sc_simask, mpc8xx_cached_irq_mask);
-}
-
-static void mpc8xx_ack(struct irq_data *d)
-{
- out_be32(&siu_reg->sc_sipend, mpc8xx_irqd_to_bit(d));
-}
-
-static void mpc8xx_end_irq(struct irq_data *d)
-{
- mpc8xx_cached_irq_mask |= mpc8xx_irqd_to_bit(d);
- out_be32(&siu_reg->sc_simask, mpc8xx_cached_irq_mask);
-}
-
-static int mpc8xx_set_irq_type(struct irq_data *d, unsigned int flow_type)
-{
- /* only external IRQ senses are programmable */
- if ((flow_type & IRQ_TYPE_EDGE_FALLING) && !(irqd_to_hwirq(d) & 1)) {
- unsigned int siel = in_be32(&siu_reg->sc_siel);
- siel |= mpc8xx_irqd_to_bit(d);
- out_be32(&siu_reg->sc_siel, siel);
- irq_set_handler_locked(d, handle_edge_irq);
- }
- return 0;
-}
-
-static struct irq_chip mpc8xx_pic = {
- .name = "8XX SIU",
- .irq_unmask = mpc8xx_unmask_irq,
- .irq_mask = mpc8xx_mask_irq,
- .irq_ack = mpc8xx_ack,
- .irq_eoi = mpc8xx_end_irq,
- .irq_set_type = mpc8xx_set_irq_type,
-};
-
-unsigned int mpc8xx_get_irq(void)
-{
- int irq;
-
- /* For MPC8xx, read the SIVEC register and shift the bits down
- * to get the irq number.
- */
- irq = in_be32(&siu_reg->sc_sivec) >> 26;
-
- if (irq == PIC_VEC_SPURRIOUS)
- irq = 0;
-
- return irq_linear_revmap(mpc8xx_pic_host, irq);
-
-}
-
-static int mpc8xx_pic_host_map(struct irq_domain *h, unsigned int virq,
- irq_hw_number_t hw)
-{
- pr_debug("mpc8xx_pic_host_map(%d, 0x%lx)\n", virq, hw);
-
- /* Set default irq handle */
- irq_set_chip_and_handler(virq, &mpc8xx_pic, handle_level_irq);
- return 0;
-}
-
-
-static int mpc8xx_pic_host_xlate(struct irq_domain *h, struct device_node *ct,
- const u32 *intspec, unsigned int intsize,
- irq_hw_number_t *out_hwirq, unsigned int *out_flags)
-{
- static unsigned char map_pic_senses[4] = {
- IRQ_TYPE_EDGE_RISING,
- IRQ_TYPE_LEVEL_LOW,
- IRQ_TYPE_LEVEL_HIGH,
- IRQ_TYPE_EDGE_FALLING,
- };
-
- if (intspec[0] > 0x1f)
- return 0;
-
- *out_hwirq = intspec[0];
- if (intsize > 1 && intspec[1] < 4)
- *out_flags = map_pic_senses[intspec[1]];
- else
- *out_flags = IRQ_TYPE_NONE;
-
- return 0;
-}
-
-
-static const struct irq_domain_ops mpc8xx_pic_host_ops = {
- .map = mpc8xx_pic_host_map,
- .xlate = mpc8xx_pic_host_xlate,
-};
-
-int mpc8xx_pic_init(void)
-{
- struct resource res;
- struct device_node *np;
- int ret;
-
- np = of_find_compatible_node(NULL, NULL, "fsl,pq1-pic");
- if (np == NULL)
- np = of_find_node_by_type(NULL, "mpc8xx-pic");
- if (np == NULL) {
- printk(KERN_ERR "Could not find fsl,pq1-pic node\n");
- return -ENOMEM;
- }
-
- ret = of_address_to_resource(np, 0, &res);
- if (ret)
- goto out;
-
- siu_reg = ioremap(res.start, resource_size(&res));
- if (siu_reg == NULL) {
- ret = -EINVAL;
- goto out;
- }
-
- mpc8xx_pic_host = irq_domain_add_linear(np, 64, &mpc8xx_pic_host_ops, NULL);
- if (mpc8xx_pic_host == NULL) {
- printk(KERN_ERR "MPC8xx PIC: failed to allocate irq host!\n");
- ret = -ENOMEM;
- goto out;
- }
- return 0;
-
-out:
- of_node_put(np);
- return ret;
-}
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index b9aac951a90f..ead3e2549ebf 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -1650,8 +1650,8 @@ void __init mpic_init(struct mpic *mpic)
if (mpic->flags & MPIC_SECONDARY) {
int virq = irq_of_parse_and_map(mpic->node, 0);
if (virq) {
- printk(KERN_INFO "%s: hooking up to IRQ %d\n",
- mpic->node->full_name, virq);
+ printk(KERN_INFO "%pOF: hooking up to IRQ %d\n",
+ mpic->node, virq);
irq_set_handler_data(virq, mpic);
irq_set_chained_handler(virq, &mpic_cascade);
}
diff --git a/arch/powerpc/sysdev/mpic_msgr.c b/arch/powerpc/sysdev/mpic_msgr.c
index db2286be5d9a..eb69a5186243 100644
--- a/arch/powerpc/sysdev/mpic_msgr.c
+++ b/arch/powerpc/sysdev/mpic_msgr.c
@@ -192,7 +192,7 @@ static int mpic_msgr_probe(struct platform_device *dev)
return -ENOMEM;
}
}
- dev_info(&dev->dev, "Of-device full name %s\n", np->full_name);
+ dev_info(&dev->dev, "Of-device full name %pOF\n", np);
/* IO map the message register block. */
of_address_to_resource(np, 0, &rsrc);
diff --git a/arch/powerpc/sysdev/mpic_msi.c b/arch/powerpc/sysdev/mpic_msi.c
index 1d48a5385905..9ed860aee9c3 100644
--- a/arch/powerpc/sysdev/mpic_msi.c
+++ b/arch/powerpc/sysdev/mpic_msi.c
@@ -60,7 +60,7 @@ static int mpic_msi_reserve_u3_hwirqs(struct mpic *mpic)
np = NULL;
while ((np = of_find_all_nodes(np))) {
- pr_debug("mpic: mapping hwirqs for %s\n", np->full_name);
+ pr_debug("mpic: mapping hwirqs for %pOF\n", np);
index = 0;
while (of_irq_parse_one(np, index++, &oirq) == 0) {
diff --git a/arch/powerpc/sysdev/mpic_timer.c b/arch/powerpc/sysdev/mpic_timer.c
index 9d9b06217f8b..a418579591be 100644
--- a/arch/powerpc/sysdev/mpic_timer.c
+++ b/arch/powerpc/sysdev/mpic_timer.c
@@ -466,8 +466,7 @@ static int timer_group_get_irq(struct device_node *np,
p = of_get_property(np, "fsl,available-ranges", &len);
if (p && len % (2 * sizeof(u32)) != 0) {
- pr_err("%s: malformed available-ranges property.\n",
- np->full_name);
+ pr_err("%pOF: malformed available-ranges property.\n", np);
return -EINVAL;
}
@@ -484,8 +483,7 @@ static int timer_group_get_irq(struct device_node *np,
for (j = 0; j < count; j++) {
irq = irq_of_parse_and_map(np, irq_index);
if (!irq) {
- pr_err("%s: irq parse and map failed.\n",
- np->full_name);
+ pr_err("%pOF: irq parse and map failed.\n", np);
return -EINVAL;
}
@@ -508,8 +506,7 @@ static void timer_group_init(struct device_node *np)
priv = kzalloc(sizeof(struct timer_group_priv), GFP_KERNEL);
if (!priv) {
- pr_err("%s: cannot allocate memory for group.\n",
- np->full_name);
+ pr_err("%pOF: cannot allocate memory for group.\n", np);
return;
}
@@ -518,29 +515,27 @@ static void timer_group_init(struct device_node *np)
priv->regs = of_iomap(np, i++);
if (!priv->regs) {
- pr_err("%s: cannot ioremap timer register address.\n",
- np->full_name);
+ pr_err("%pOF: cannot ioremap timer register address.\n", np);
goto out;
}
if (priv->flags & FSL_GLOBAL_TIMER) {
priv->group_tcr = of_iomap(np, i++);
if (!priv->group_tcr) {
- pr_err("%s: cannot ioremap tcr address.\n",
- np->full_name);
+ pr_err("%pOF: cannot ioremap tcr address.\n", np);
goto out;
}
}
ret = timer_group_get_freq(np, priv);
if (ret < 0) {
- pr_err("%s: cannot get timer frequency.\n", np->full_name);
+ pr_err("%pOF: cannot get timer frequency.\n", np);
goto out;
}
ret = timer_group_get_irq(np, priv);
if (ret < 0) {
- pr_err("%s: cannot get timer irqs.\n", np->full_name);
+ pr_err("%pOF: cannot get timer irqs.\n", np);
goto out;
}
diff --git a/arch/powerpc/sysdev/msi_bitmap.c b/arch/powerpc/sysdev/msi_bitmap.c
index 5ebd3f018295..c4dae27172b3 100644
--- a/arch/powerpc/sysdev/msi_bitmap.c
+++ b/arch/powerpc/sysdev/msi_bitmap.c
@@ -86,13 +86,13 @@ int msi_bitmap_reserve_dt_hwirqs(struct msi_bitmap *bmp)
p = of_get_property(bmp->of_node, "msi-available-ranges", &len);
if (!p) {
pr_debug("msi_bitmap: no msi-available-ranges property " \
- "found on %s\n", bmp->of_node->full_name);
+ "found on %pOF\n", bmp->of_node);
return 1;
}
if (len % (2 * sizeof(u32)) != 0) {
printk(KERN_WARNING "msi_bitmap: Malformed msi-available-ranges"
- " property on %s\n", bmp->of_node->full_name);
+ " property on %pOF\n", bmp->of_node);
return -EINVAL;
}
diff --git a/arch/powerpc/sysdev/mv64x60_dev.c b/arch/powerpc/sysdev/mv64x60_dev.c
index 026bbc3b2c47..185a67e742a6 100644
--- a/arch/powerpc/sysdev/mv64x60_dev.c
+++ b/arch/powerpc/sysdev/mv64x60_dev.c
@@ -452,8 +452,8 @@ static int __init mv64x60_device_setup(void)
err = mv64x60_mpsc_device_setup(np, id++);
if (err)
printk(KERN_ERR "Failed to initialize MV64x60 "
- "serial device %s: error %d.\n",
- np->full_name, err);
+ "serial device %pOF: error %d.\n",
+ np, err);
}
id = 0;
@@ -463,8 +463,8 @@ static int __init mv64x60_device_setup(void)
if (IS_ERR(pdev)) {
err = PTR_ERR(pdev);
printk(KERN_ERR "Failed to initialize MV64x60 "
- "network block %s: error %d.\n",
- np->full_name, err);
+ "network block %pOF: error %d.\n",
+ np, err);
continue;
}
for_each_child_of_node(np, np2) {
@@ -474,9 +474,9 @@ static int __init mv64x60_device_setup(void)
err = mv64x60_eth_device_setup(np2, id2++, pdev);
if (err)
printk(KERN_ERR "Failed to initialize "
- "MV64x60 network device %s: "
+ "MV64x60 network device %pOF: "
"error %d.\n",
- np2->full_name, err);
+ np2, err);
}
}
@@ -485,8 +485,8 @@ static int __init mv64x60_device_setup(void)
err = mv64x60_i2c_device_setup(np, id++);
if (err)
printk(KERN_ERR "Failed to initialize MV64x60 I2C "
- "bus %s: error %d.\n",
- np->full_name, err);
+ "bus %pOF: error %d.\n",
+ np, err);
}
/* support up to one watchdog timer */
@@ -494,8 +494,8 @@ static int __init mv64x60_device_setup(void)
if (np) {
if ((err = mv64x60_wdt_device_setup(np, id)))
printk(KERN_ERR "Failed to initialize MV64x60 "
- "Watchdog %s: error %d.\n",
- np->full_name, err);
+ "Watchdog %pOF: error %d.\n",
+ np, err);
of_node_put(np);
}
diff --git a/arch/powerpc/sysdev/mv64x60_pci.c b/arch/powerpc/sysdev/mv64x60_pci.c
index 330d56613c5a..d52b3b81e05f 100644
--- a/arch/powerpc/sysdev/mv64x60_pci.c
+++ b/arch/powerpc/sysdev/mv64x60_pci.c
@@ -70,7 +70,7 @@ static ssize_t mv64x60_hs_reg_write(struct file *filp, struct kobject *kobj,
return count;
}
-static struct bin_attribute mv64x60_hs_reg_attr = { /* Hotswap register */
+static const struct bin_attribute mv64x60_hs_reg_attr = { /* Hotswap register */
.attr = {
.name = "hs_reg",
.mode = S_IRUGO | S_IWUSR,
@@ -136,8 +136,8 @@ static int __init mv64x60_add_bridge(struct device_node *dev)
/* Get bus range if any */
bus_range = of_get_property(dev, "bus-range", &len);
if (bus_range == NULL || len < 2 * sizeof(int))
- printk(KERN_WARNING "Can't get bus-range for %s, assume"
- " bus 0\n", dev->full_name);
+ printk(KERN_WARNING "Can't get bus-range for %pOF, assume"
+ " bus 0\n", dev);
hose = pcibios_alloc_controller(dev);
if (!hose)
diff --git a/arch/powerpc/sysdev/of_rtc.c b/arch/powerpc/sysdev/of_rtc.c
index 6f54b54b1328..153fdac4720f 100644
--- a/arch/powerpc/sysdev/of_rtc.c
+++ b/arch/powerpc/sysdev/of_rtc.c
@@ -38,21 +38,21 @@ void __init of_instantiate_rtc(void)
res = kmalloc(sizeof(*res), GFP_KERNEL);
if (!res) {
printk(KERN_ERR "OF RTC: Out of memory "
- "allocating resource structure for %s\n",
- node->full_name);
+ "allocating resource structure for %pOF\n",
+ node);
continue;
}
err = of_address_to_resource(node, 0, res);
if (err) {
printk(KERN_ERR "OF RTC: Error "
- "translating resources for %s\n",
- node->full_name);
+ "translating resources for %pOF\n",
+ node);
continue;
}
- printk(KERN_INFO "OF_RTC: %s is a %s @ 0x%llx-0x%llx\n",
- node->full_name, plat_name,
+ printk(KERN_INFO "OF_RTC: %pOF is a %s @ 0x%llx-0x%llx\n",
+ node, plat_name,
(unsigned long long)res->start,
(unsigned long long)res->end);
platform_device_register_simple(plat_name, -1, res, 1);
diff --git a/arch/powerpc/sysdev/ppc4xx_cpm.c b/arch/powerpc/sysdev/ppc4xx_cpm.c
deleted file mode 100644
index ba95adf81d8d..000000000000
--- a/arch/powerpc/sysdev/ppc4xx_cpm.c
+++ /dev/null
@@ -1,346 +0,0 @@
-/*
- * PowerPC 4xx Clock and Power Management
- *
- * Copyright (C) 2010, Applied Micro Circuits Corporation
- * Victor Gallardo (vgallardo@apm.com)
- *
- * Based on arch/powerpc/platforms/44x/idle.c:
- * Jerone Young <jyoung5@us.ibm.com>
- * Copyright 2008 IBM Corp.
- *
- * Based on arch/powerpc/sysdev/fsl_pmc.c:
- * Anton Vorontsov <avorontsov@ru.mvista.com>
- * Copyright 2009 MontaVista Software, Inc.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <linux/kernel.h>
-#include <linux/of_platform.h>
-#include <linux/sysfs.h>
-#include <linux/cpu.h>
-#include <linux/suspend.h>
-#include <asm/dcr.h>
-#include <asm/dcr-native.h>
-#include <asm/machdep.h>
-
-#define CPM_ER 0
-#define CPM_FR 1
-#define CPM_SR 2
-
-#define CPM_IDLE_WAIT 0
-#define CPM_IDLE_DOZE 1
-
-struct cpm {
- dcr_host_t dcr_host;
- unsigned int dcr_offset[3];
- unsigned int powersave_off;
- unsigned int unused;
- unsigned int idle_doze;
- unsigned int standby;
- unsigned int suspend;
-};
-
-static struct cpm cpm;
-
-struct cpm_idle_mode {
- unsigned int enabled;
- const char *name;
-};
-
-static struct cpm_idle_mode idle_mode[] = {
- [CPM_IDLE_WAIT] = { 1, "wait" }, /* default */
- [CPM_IDLE_DOZE] = { 0, "doze" },
-};
-
-static unsigned int cpm_set(unsigned int cpm_reg, unsigned int mask)
-{
- unsigned int value;
-
- /* CPM controller supports 3 different types of sleep interface
- * known as class 1, 2 and 3. For class 1 units, they are
- * unconditionally put to sleep when the corresponding CPM bit is
- * set. For class 2 and 3 units this is not case; if they can be
- * put to to sleep, they will. Here we do not verify, we just
- * set them and expect them to eventually go off when they can.
- */
- value = dcr_read(cpm.dcr_host, cpm.dcr_offset[cpm_reg]);
- dcr_write(cpm.dcr_host, cpm.dcr_offset[cpm_reg], value | mask);
-
- /* return old state, to restore later if needed */
- return value;
-}
-
-static void cpm_idle_wait(void)
-{
- unsigned long msr_save;
-
- /* save off initial state */
- msr_save = mfmsr();
- /* sync required when CPM0_ER[CPU] is set */
- mb();
- /* set wait state MSR */
- mtmsr(msr_save|MSR_WE|MSR_EE|MSR_CE|MSR_DE);
- isync();
- /* return to initial state */
- mtmsr(msr_save);
- isync();
-}
-
-static void cpm_idle_sleep(unsigned int mask)
-{
- unsigned int er_save;
-
- /* update CPM_ER state */
- er_save = cpm_set(CPM_ER, mask);
-
- /* go to wait state so that CPM0_ER[CPU] can take effect */
- cpm_idle_wait();
-
- /* restore CPM_ER state */
- dcr_write(cpm.dcr_host, cpm.dcr_offset[CPM_ER], er_save);
-}
-
-static void cpm_idle_doze(void)
-{
- cpm_idle_sleep(cpm.idle_doze);
-}
-
-static void cpm_idle_config(int mode)
-{
- int i;
-
- if (idle_mode[mode].enabled)
- return;
-
- for (i = 0; i < ARRAY_SIZE(idle_mode); i++)
- idle_mode[i].enabled = 0;
-
- idle_mode[mode].enabled = 1;
-}
-
-static ssize_t cpm_idle_show(struct kobject *kobj,
- struct kobj_attribute *attr, char *buf)
-{
- char *s = buf;
- int i;
-
- for (i = 0; i < ARRAY_SIZE(idle_mode); i++) {
- if (idle_mode[i].enabled)
- s += sprintf(s, "[%s] ", idle_mode[i].name);
- else
- s += sprintf(s, "%s ", idle_mode[i].name);
- }
-
- *(s-1) = '\n'; /* convert the last space to a newline */
-
- return s - buf;
-}
-
-static ssize_t cpm_idle_store(struct kobject *kobj,
- struct kobj_attribute *attr,
- const char *buf, size_t n)
-{
- int i;
- char *p;
- int len;
-
- p = memchr(buf, '\n', n);
- len = p ? p - buf : n;
-
- for (i = 0; i < ARRAY_SIZE(idle_mode); i++) {
- if (strncmp(buf, idle_mode[i].name, len) == 0) {
- cpm_idle_config(i);
- return n;
- }
- }
-
- return -EINVAL;
-}
-
-static struct kobj_attribute cpm_idle_attr =
- __ATTR(idle, 0644, cpm_idle_show, cpm_idle_store);
-
-static void cpm_idle_config_sysfs(void)
-{
- struct device *dev;
- unsigned long ret;
-
- dev = get_cpu_device(0);
-
- ret = sysfs_create_file(&dev->kobj,
- &cpm_idle_attr.attr);
- if (ret)
- printk(KERN_WARNING
- "cpm: failed to create idle sysfs entry\n");
-}
-
-static void cpm_idle(void)
-{
- if (idle_mode[CPM_IDLE_DOZE].enabled)
- cpm_idle_doze();
- else
- cpm_idle_wait();
-}
-
-static int cpm_suspend_valid(suspend_state_t state)
-{
- switch (state) {
- case PM_SUSPEND_STANDBY:
- return !!cpm.standby;
- case PM_SUSPEND_MEM:
- return !!cpm.suspend;
- default:
- return 0;
- }
-}
-
-static void cpm_suspend_standby(unsigned int mask)
-{
- unsigned long tcr_save;
-
- /* disable decrement interrupt */
- tcr_save = mfspr(SPRN_TCR);
- mtspr(SPRN_TCR, tcr_save & ~TCR_DIE);
-
- /* go to sleep state */
- cpm_idle_sleep(mask);
-
- /* restore decrement interrupt */
- mtspr(SPRN_TCR, tcr_save);
-}
-
-static int cpm_suspend_enter(suspend_state_t state)
-{
- switch (state) {
- case PM_SUSPEND_STANDBY:
- cpm_suspend_standby(cpm.standby);
- break;
- case PM_SUSPEND_MEM:
- cpm_suspend_standby(cpm.suspend);
- break;
- }
-
- return 0;
-}
-
-static struct platform_suspend_ops cpm_suspend_ops = {
- .valid = cpm_suspend_valid,
- .enter = cpm_suspend_enter,
-};
-
-static int cpm_get_uint_property(struct device_node *np,
- const char *name)
-{
- int len;
- const unsigned int *prop = of_get_property(np, name, &len);
-
- if (prop == NULL || len < sizeof(u32))
- return 0;
-
- return *prop;
-}
-
-static int __init cpm_init(void)
-{
- struct device_node *np;
- int dcr_base, dcr_len;
- int ret = 0;
-
- if (!cpm.powersave_off) {
- cpm_idle_config(CPM_IDLE_WAIT);
- ppc_md.power_save = &cpm_idle;
- }
-
- np = of_find_compatible_node(NULL, NULL, "ibm,cpm");
- if (!np) {
- ret = -EINVAL;
- goto out;
- }
-
- dcr_base = dcr_resource_start(np, 0);
- dcr_len = dcr_resource_len(np, 0);
-
- if (dcr_base == 0 || dcr_len == 0) {
- printk(KERN_ERR "cpm: could not parse dcr property for %s\n",
- np->full_name);
- ret = -EINVAL;
- goto node_put;
- }
-
- cpm.dcr_host = dcr_map(np, dcr_base, dcr_len);
-
- if (!DCR_MAP_OK(cpm.dcr_host)) {
- printk(KERN_ERR "cpm: failed to map dcr property for %s\n",
- np->full_name);
- ret = -EINVAL;
- goto node_put;
- }
-
- /* All 4xx SoCs with a CPM controller have one of two
- * different order for the CPM registers. Some have the
- * CPM registers in the following order (ER,FR,SR). The
- * others have them in the following order (SR,ER,FR).
- */
-
- if (cpm_get_uint_property(np, "er-offset") == 0) {
- cpm.dcr_offset[CPM_ER] = 0;
- cpm.dcr_offset[CPM_FR] = 1;
- cpm.dcr_offset[CPM_SR] = 2;
- } else {
- cpm.dcr_offset[CPM_ER] = 1;
- cpm.dcr_offset[CPM_FR] = 2;
- cpm.dcr_offset[CPM_SR] = 0;
- }
-
- /* Now let's see what IPs to turn off for the following modes */
-
- cpm.unused = cpm_get_uint_property(np, "unused-units");
- cpm.idle_doze = cpm_get_uint_property(np, "idle-doze");
- cpm.standby = cpm_get_uint_property(np, "standby");
- cpm.suspend = cpm_get_uint_property(np, "suspend");
-
- /* If some IPs are unused let's turn them off now */
-
- if (cpm.unused) {
- cpm_set(CPM_ER, cpm.unused);
- cpm_set(CPM_FR, cpm.unused);
- }
-
- /* Now let's export interfaces */
-
- if (!cpm.powersave_off && cpm.idle_doze)
- cpm_idle_config_sysfs();
-
- if (cpm.standby || cpm.suspend)
- suspend_set_ops(&cpm_suspend_ops);
-node_put:
- of_node_put(np);
-out:
- return ret;
-}
-
-late_initcall(cpm_init);
-
-static int __init cpm_powersave_off(char *arg)
-{
- cpm.powersave_off = 1;
- return 0;
-}
-__setup("powersave=off", cpm_powersave_off);
diff --git a/arch/powerpc/sysdev/ppc4xx_gpio.c b/arch/powerpc/sysdev/ppc4xx_gpio.c
deleted file mode 100644
index 5382d04dd872..000000000000
--- a/arch/powerpc/sysdev/ppc4xx_gpio.c
+++ /dev/null
@@ -1,208 +0,0 @@
-/*
- * PPC4xx gpio driver
- *
- * Copyright (c) 2008 Harris Corporation
- * Copyright (c) 2008 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
- * Copyright (c) MontaVista Software, Inc. 2008.
- *
- * Author: Steve Falco <sfalco@harris.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/of_gpio.h>
-#include <linux/gpio/driver.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-
-#define GPIO_MASK(gpio) (0x80000000 >> (gpio))
-#define GPIO_MASK2(gpio) (0xc0000000 >> ((gpio) * 2))
-
-/* Physical GPIO register layout */
-struct ppc4xx_gpio {
- __be32 or;
- __be32 tcr;
- __be32 osrl;
- __be32 osrh;
- __be32 tsrl;
- __be32 tsrh;
- __be32 odr;
- __be32 ir;
- __be32 rr1;
- __be32 rr2;
- __be32 rr3;
- __be32 reserved1;
- __be32 isr1l;
- __be32 isr1h;
- __be32 isr2l;
- __be32 isr2h;
- __be32 isr3l;
- __be32 isr3h;
-};
-
-struct ppc4xx_gpio_chip {
- struct of_mm_gpio_chip mm_gc;
- spinlock_t lock;
-};
-
-/*
- * GPIO LIB API implementation for GPIOs
- *
- * There are a maximum of 32 gpios in each gpio controller.
- */
-
-static int ppc4xx_gpio_get(struct gpio_chip *gc, unsigned int gpio)
-{
- struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct ppc4xx_gpio __iomem *regs = mm_gc->regs;
-
- return !!(in_be32(&regs->ir) & GPIO_MASK(gpio));
-}
-
-static inline void
-__ppc4xx_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
-{
- struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct ppc4xx_gpio __iomem *regs = mm_gc->regs;
-
- if (val)
- setbits32(&regs->or, GPIO_MASK(gpio));
- else
- clrbits32(&regs->or, GPIO_MASK(gpio));
-}
-
-static void
-ppc4xx_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
-{
- struct ppc4xx_gpio_chip *chip = gpiochip_get_data(gc);
- unsigned long flags;
-
- spin_lock_irqsave(&chip->lock, flags);
-
- __ppc4xx_gpio_set(gc, gpio, val);
-
- spin_unlock_irqrestore(&chip->lock, flags);
-
- pr_debug("%s: gpio: %d val: %d\n", __func__, gpio, val);
-}
-
-static int ppc4xx_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
-{
- struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct ppc4xx_gpio_chip *chip = gpiochip_get_data(gc);
- struct ppc4xx_gpio __iomem *regs = mm_gc->regs;
- unsigned long flags;
-
- spin_lock_irqsave(&chip->lock, flags);
-
- /* Disable open-drain function */
- clrbits32(&regs->odr, GPIO_MASK(gpio));
-
- /* Float the pin */
- clrbits32(&regs->tcr, GPIO_MASK(gpio));
-
- /* Bits 0-15 use TSRL/OSRL, bits 16-31 use TSRH/OSRH */
- if (gpio < 16) {
- clrbits32(&regs->osrl, GPIO_MASK2(gpio));
- clrbits32(&regs->tsrl, GPIO_MASK2(gpio));
- } else {
- clrbits32(&regs->osrh, GPIO_MASK2(gpio));
- clrbits32(&regs->tsrh, GPIO_MASK2(gpio));
- }
-
- spin_unlock_irqrestore(&chip->lock, flags);
-
- return 0;
-}
-
-static int
-ppc4xx_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
-{
- struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct ppc4xx_gpio_chip *chip = gpiochip_get_data(gc);
- struct ppc4xx_gpio __iomem *regs = mm_gc->regs;
- unsigned long flags;
-
- spin_lock_irqsave(&chip->lock, flags);
-
- /* First set initial value */
- __ppc4xx_gpio_set(gc, gpio, val);
-
- /* Disable open-drain function */
- clrbits32(&regs->odr, GPIO_MASK(gpio));
-
- /* Drive the pin */
- setbits32(&regs->tcr, GPIO_MASK(gpio));
-
- /* Bits 0-15 use TSRL, bits 16-31 use TSRH */
- if (gpio < 16) {
- clrbits32(&regs->osrl, GPIO_MASK2(gpio));
- clrbits32(&regs->tsrl, GPIO_MASK2(gpio));
- } else {
- clrbits32(&regs->osrh, GPIO_MASK2(gpio));
- clrbits32(&regs->tsrh, GPIO_MASK2(gpio));
- }
-
- spin_unlock_irqrestore(&chip->lock, flags);
-
- pr_debug("%s: gpio: %d val: %d\n", __func__, gpio, val);
-
- return 0;
-}
-
-static int __init ppc4xx_add_gpiochips(void)
-{
- struct device_node *np;
-
- for_each_compatible_node(np, NULL, "ibm,ppc4xx-gpio") {
- int ret;
- struct ppc4xx_gpio_chip *ppc4xx_gc;
- struct of_mm_gpio_chip *mm_gc;
- struct gpio_chip *gc;
-
- ppc4xx_gc = kzalloc(sizeof(*ppc4xx_gc), GFP_KERNEL);
- if (!ppc4xx_gc) {
- ret = -ENOMEM;
- goto err;
- }
-
- spin_lock_init(&ppc4xx_gc->lock);
-
- mm_gc = &ppc4xx_gc->mm_gc;
- gc = &mm_gc->gc;
-
- gc->ngpio = 32;
- gc->direction_input = ppc4xx_gpio_dir_in;
- gc->direction_output = ppc4xx_gpio_dir_out;
- gc->get = ppc4xx_gpio_get;
- gc->set = ppc4xx_gpio_set;
-
- ret = of_mm_gpiochip_add_data(np, mm_gc, ppc4xx_gc);
- if (ret)
- goto err;
- continue;
-err:
- pr_err("%s: registration failed with status %d\n",
- np->full_name, ret);
- kfree(ppc4xx_gc);
- /* try others anyway */
- }
- return 0;
-}
-arch_initcall(ppc4xx_add_gpiochips);
diff --git a/arch/powerpc/sysdev/ppc4xx_msi.c b/arch/powerpc/sysdev/ppc4xx_msi.c
deleted file mode 100644
index 590dab4f47d6..000000000000
--- a/arch/powerpc/sysdev/ppc4xx_msi.c
+++ /dev/null
@@ -1,286 +0,0 @@
-/*
- * Adding PCI-E MSI support for PPC4XX SoCs.
- *
- * Copyright (c) 2010, Applied Micro Circuits Corporation
- * Authors: Tirumala R Marri <tmarri@apm.com>
- * Feng Kan <fkan@apm.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <linux/irq.h>
-#include <linux/pci.h>
-#include <linux/msi.h>
-#include <linux/of_platform.h>
-#include <linux/interrupt.h>
-#include <linux/export.h>
-#include <linux/kernel.h>
-#include <asm/prom.h>
-#include <asm/hw_irq.h>
-#include <asm/ppc-pci.h>
-#include <asm/dcr.h>
-#include <asm/dcr-regs.h>
-#include <asm/msi_bitmap.h>
-
-#define PEIH_TERMADH 0x00
-#define PEIH_TERMADL 0x08
-#define PEIH_MSIED 0x10
-#define PEIH_MSIMK 0x18
-#define PEIH_MSIASS 0x20
-#define PEIH_FLUSH0 0x30
-#define PEIH_FLUSH1 0x38
-#define PEIH_CNTRST 0x48
-
-static int msi_irqs;
-
-struct ppc4xx_msi {
- u32 msi_addr_lo;
- u32 msi_addr_hi;
- void __iomem *msi_regs;
- int *msi_virqs;
- struct msi_bitmap bitmap;
- struct device_node *msi_dev;
-};
-
-static struct ppc4xx_msi ppc4xx_msi;
-
-static int ppc4xx_msi_init_allocator(struct platform_device *dev,
- struct ppc4xx_msi *msi_data)
-{
- int err;
-
- err = msi_bitmap_alloc(&msi_data->bitmap, msi_irqs,
- dev->dev.of_node);
- if (err)
- return err;
-
- err = msi_bitmap_reserve_dt_hwirqs(&msi_data->bitmap);
- if (err < 0) {
- msi_bitmap_free(&msi_data->bitmap);
- return err;
- }
-
- return 0;
-}
-
-static int ppc4xx_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
-{
- int int_no = -ENOMEM;
- unsigned int virq;
- struct msi_msg msg;
- struct msi_desc *entry;
- struct ppc4xx_msi *msi_data = &ppc4xx_msi;
-
- dev_dbg(&dev->dev, "PCIE-MSI:%s called. vec %x type %d\n",
- __func__, nvec, type);
- if (type == PCI_CAP_ID_MSIX)
- pr_debug("ppc4xx msi: MSI-X untested, trying anyway.\n");
-
- msi_data->msi_virqs = kmalloc((msi_irqs) * sizeof(int), GFP_KERNEL);
- if (!msi_data->msi_virqs)
- return -ENOMEM;
-
- for_each_pci_msi_entry(entry, dev) {
- int_no = msi_bitmap_alloc_hwirqs(&msi_data->bitmap, 1);
- if (int_no >= 0)
- break;
- if (int_no < 0) {
- pr_debug("%s: fail allocating msi interrupt\n",
- __func__);
- }
- virq = irq_of_parse_and_map(msi_data->msi_dev, int_no);
- if (!virq) {
- dev_err(&dev->dev, "%s: fail mapping irq\n", __func__);
- msi_bitmap_free_hwirqs(&msi_data->bitmap, int_no, 1);
- return -ENOSPC;
- }
- dev_dbg(&dev->dev, "%s: virq = %d\n", __func__, virq);
-
- /* Setup msi address space */
- msg.address_hi = msi_data->msi_addr_hi;
- msg.address_lo = msi_data->msi_addr_lo;
-
- irq_set_msi_desc(virq, entry);
- msg.data = int_no;
- pci_write_msi_msg(virq, &msg);
- }
- return 0;
-}
-
-void ppc4xx_teardown_msi_irqs(struct pci_dev *dev)
-{
- struct msi_desc *entry;
- struct ppc4xx_msi *msi_data = &ppc4xx_msi;
- irq_hw_number_t hwirq;
-
- dev_dbg(&dev->dev, "PCIE-MSI: tearing down msi irqs\n");
-
- for_each_pci_msi_entry(entry, dev) {
- if (!entry->irq)
- continue;
- hwirq = virq_to_hw(entry->irq);
- irq_set_msi_desc(entry->irq, NULL);
- irq_dispose_mapping(entry->irq);
- msi_bitmap_free_hwirqs(&msi_data->bitmap, hwirq, 1);
- }
-}
-
-static int ppc4xx_setup_pcieh_hw(struct platform_device *dev,
- struct resource res, struct ppc4xx_msi *msi)
-{
- const u32 *msi_data;
- const u32 *msi_mask;
- const u32 *sdr_addr;
- dma_addr_t msi_phys;
- void *msi_virt;
-
- sdr_addr = of_get_property(dev->dev.of_node, "sdr-base", NULL);
- if (!sdr_addr)
- return -1;
-
- mtdcri(SDR0, *sdr_addr, upper_32_bits(res.start)); /*HIGH addr */
- mtdcri(SDR0, *sdr_addr + 1, lower_32_bits(res.start)); /* Low addr */
-
- msi->msi_dev = of_find_node_by_name(NULL, "ppc4xx-msi");
- if (!msi->msi_dev)
- return -ENODEV;
-
- msi->msi_regs = of_iomap(msi->msi_dev, 0);
- if (!msi->msi_regs) {
- dev_err(&dev->dev, "of_iomap problem failed\n");
- return -ENOMEM;
- }
- dev_dbg(&dev->dev, "PCIE-MSI: msi register mapped 0x%x 0x%x\n",
- (u32) (msi->msi_regs + PEIH_TERMADH), (u32) (msi->msi_regs));
-
- msi_virt = dma_alloc_coherent(&dev->dev, 64, &msi_phys, GFP_KERNEL);
- if (!msi_virt)
- return -ENOMEM;
- msi->msi_addr_hi = upper_32_bits(msi_phys);
- msi->msi_addr_lo = lower_32_bits(msi_phys & 0xffffffff);
- dev_dbg(&dev->dev, "PCIE-MSI: msi address high 0x%x, low 0x%x\n",
- msi->msi_addr_hi, msi->msi_addr_lo);
-
- /* Progam the Interrupt handler Termination addr registers */
- out_be32(msi->msi_regs + PEIH_TERMADH, msi->msi_addr_hi);
- out_be32(msi->msi_regs + PEIH_TERMADL, msi->msi_addr_lo);
-
- msi_data = of_get_property(dev->dev.of_node, "msi-data", NULL);
- if (!msi_data)
- return -1;
- msi_mask = of_get_property(dev->dev.of_node, "msi-mask", NULL);
- if (!msi_mask)
- return -1;
- /* Program MSI Expected data and Mask bits */
- out_be32(msi->msi_regs + PEIH_MSIED, *msi_data);
- out_be32(msi->msi_regs + PEIH_MSIMK, *msi_mask);
-
- dma_free_coherent(&dev->dev, 64, msi_virt, msi_phys);
-
- return 0;
-}
-
-static int ppc4xx_of_msi_remove(struct platform_device *dev)
-{
- struct ppc4xx_msi *msi = dev->dev.platform_data;
- int i;
- int virq;
-
- for (i = 0; i < msi_irqs; i++) {
- virq = msi->msi_virqs[i];
- if (virq)
- irq_dispose_mapping(virq);
- }
-
- if (msi->bitmap.bitmap)
- msi_bitmap_free(&msi->bitmap);
- iounmap(msi->msi_regs);
- of_node_put(msi->msi_dev);
- kfree(msi);
-
- return 0;
-}
-
-static int ppc4xx_msi_probe(struct platform_device *dev)
-{
- struct ppc4xx_msi *msi;
- struct resource res;
- int err = 0;
- struct pci_controller *phb;
-
- dev_dbg(&dev->dev, "PCIE-MSI: Setting up MSI support...\n");
-
- msi = kzalloc(sizeof(struct ppc4xx_msi), GFP_KERNEL);
- if (!msi) {
- dev_err(&dev->dev, "No memory for MSI structure\n");
- return -ENOMEM;
- }
- dev->dev.platform_data = msi;
-
- /* Get MSI ranges */
- err = of_address_to_resource(dev->dev.of_node, 0, &res);
- if (err) {
- dev_err(&dev->dev, "%s resource error!\n",
- dev->dev.of_node->full_name);
- goto error_out;
- }
-
- msi_irqs = of_irq_count(dev->dev.of_node);
- if (!msi_irqs)
- return -ENODEV;
-
- if (ppc4xx_setup_pcieh_hw(dev, res, msi))
- goto error_out;
-
- err = ppc4xx_msi_init_allocator(dev, msi);
- if (err) {
- dev_err(&dev->dev, "Error allocating MSI bitmap\n");
- goto error_out;
- }
- ppc4xx_msi = *msi;
-
- list_for_each_entry(phb, &hose_list, list_node) {
- phb->controller_ops.setup_msi_irqs = ppc4xx_setup_msi_irqs;
- phb->controller_ops.teardown_msi_irqs = ppc4xx_teardown_msi_irqs;
- }
- return err;
-
-error_out:
- ppc4xx_of_msi_remove(dev);
- return err;
-}
-static const struct of_device_id ppc4xx_msi_ids[] = {
- {
- .compatible = "amcc,ppc4xx-msi",
- },
- {}
-};
-static struct platform_driver ppc4xx_msi_driver = {
- .probe = ppc4xx_msi_probe,
- .remove = ppc4xx_of_msi_remove,
- .driver = {
- .name = "ppc4xx-msi",
- .of_match_table = ppc4xx_msi_ids,
- },
-
-};
-
-static __init int ppc4xx_msi_init(void)
-{
- return platform_driver_register(&ppc4xx_msi_driver);
-}
-
-subsys_initcall(ppc4xx_msi_init);
diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c
deleted file mode 100644
index 086aca69ecae..000000000000
--- a/arch/powerpc/sysdev/ppc4xx_pci.c
+++ /dev/null
@@ -1,2202 +0,0 @@
-/*
- * PCI / PCI-X / PCI-Express support for 4xx parts
- *
- * Copyright 2007 Ben. Herrenschmidt <benh@kernel.crashing.org>, IBM Corp.
- *
- * Most PCI Express code is coming from Stefan Roese implementation for
- * arch/ppc in the Denx tree, slightly reworked by me.
- *
- * Copyright 2007 DENX Software Engineering, Stefan Roese <sr@denx.de>
- *
- * Some of that comes itself from a previous implementation for 440SPE only
- * by Roland Dreier:
- *
- * Copyright (c) 2005 Cisco Systems. All rights reserved.
- * Roland Dreier <rolandd@cisco.com>
- *
- */
-
-#undef DEBUG
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/of.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-
-#include <asm/io.h>
-#include <asm/pci-bridge.h>
-#include <asm/machdep.h>
-#include <asm/dcr.h>
-#include <asm/dcr-regs.h>
-#include <mm/mmu_decl.h>
-
-#include "ppc4xx_pci.h"
-
-static int dma_offset_set;
-
-#define U64_TO_U32_LOW(val) ((u32)((val) & 0x00000000ffffffffULL))
-#define U64_TO_U32_HIGH(val) ((u32)((val) >> 32))
-
-#define RES_TO_U32_LOW(val) \
- ((sizeof(resource_size_t) > sizeof(u32)) ? U64_TO_U32_LOW(val) : (val))
-#define RES_TO_U32_HIGH(val) \
- ((sizeof(resource_size_t) > sizeof(u32)) ? U64_TO_U32_HIGH(val) : (0))
-
-static inline int ppc440spe_revA(void)
-{
- /* Catch both 440SPe variants, with and without RAID6 support */
- if ((mfspr(SPRN_PVR) & 0xffefffff) == 0x53421890)
- return 1;
- else
- return 0;
-}
-
-static void fixup_ppc4xx_pci_bridge(struct pci_dev *dev)
-{
- struct pci_controller *hose;
- int i;
-
- if (dev->devfn != 0 || dev->bus->self != NULL)
- return;
-
- hose = pci_bus_to_host(dev->bus);
- if (hose == NULL)
- return;
-
- if (!of_device_is_compatible(hose->dn, "ibm,plb-pciex") &&
- !of_device_is_compatible(hose->dn, "ibm,plb-pcix") &&
- !of_device_is_compatible(hose->dn, "ibm,plb-pci"))
- return;
-
- if (of_device_is_compatible(hose->dn, "ibm,plb440epx-pci") ||
- of_device_is_compatible(hose->dn, "ibm,plb440grx-pci")) {
- hose->indirect_type |= PPC_INDIRECT_TYPE_BROKEN_MRM;
- }
-
- /* Hide the PCI host BARs from the kernel as their content doesn't
- * fit well in the resource management
- */
- for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
- dev->resource[i].start = dev->resource[i].end = 0;
- dev->resource[i].flags = 0;
- }
-
- printk(KERN_INFO "PCI: Hiding 4xx host bridge resources %s\n",
- pci_name(dev));
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, fixup_ppc4xx_pci_bridge);
-
-static int __init ppc4xx_parse_dma_ranges(struct pci_controller *hose,
- void __iomem *reg,
- struct resource *res)
-{
- u64 size;
- const u32 *ranges;
- int rlen;
- int pna = of_n_addr_cells(hose->dn);
- int np = pna + 5;
-
- /* Default */
- res->start = 0;
- size = 0x80000000;
- res->end = size - 1;
- res->flags = IORESOURCE_MEM | IORESOURCE_PREFETCH;
-
- /* Get dma-ranges property */
- ranges = of_get_property(hose->dn, "dma-ranges", &rlen);
- if (ranges == NULL)
- goto out;
-
- /* Walk it */
- while ((rlen -= np * 4) >= 0) {
- u32 pci_space = ranges[0];
- u64 pci_addr = of_read_number(ranges + 1, 2);
- u64 cpu_addr = of_translate_dma_address(hose->dn, ranges + 3);
- size = of_read_number(ranges + pna + 3, 2);
- ranges += np;
- if (cpu_addr == OF_BAD_ADDR || size == 0)
- continue;
-
- /* We only care about memory */
- if ((pci_space & 0x03000000) != 0x02000000)
- continue;
-
- /* We currently only support memory at 0, and pci_addr
- * within 32 bits space
- */
- if (cpu_addr != 0 || pci_addr > 0xffffffff) {
- printk(KERN_WARNING "%s: Ignored unsupported dma range"
- " 0x%016llx...0x%016llx -> 0x%016llx\n",
- hose->dn->full_name,
- pci_addr, pci_addr + size - 1, cpu_addr);
- continue;
- }
-
- /* Check if not prefetchable */
- if (!(pci_space & 0x40000000))
- res->flags &= ~IORESOURCE_PREFETCH;
-
-
- /* Use that */
- res->start = pci_addr;
- /* Beware of 32 bits resources */
- if (sizeof(resource_size_t) == sizeof(u32) &&
- (pci_addr + size) > 0x100000000ull)
- res->end = 0xffffffff;
- else
- res->end = res->start + size - 1;
- break;
- }
-
- /* We only support one global DMA offset */
- if (dma_offset_set && pci_dram_offset != res->start) {
- printk(KERN_ERR "%s: dma-ranges(s) mismatch\n",
- hose->dn->full_name);
- return -ENXIO;
- }
-
- /* Check that we can fit all of memory as we don't support
- * DMA bounce buffers
- */
- if (size < total_memory) {
- printk(KERN_ERR "%s: dma-ranges too small "
- "(size=%llx total_memory=%llx)\n",
- hose->dn->full_name, size, (u64)total_memory);
- return -ENXIO;
- }
-
- /* Check we are a power of 2 size and that base is a multiple of size*/
- if ((size & (size - 1)) != 0 ||
- (res->start & (size - 1)) != 0) {
- printk(KERN_ERR "%s: dma-ranges unaligned\n",
- hose->dn->full_name);
- return -ENXIO;
- }
-
- /* Check that we are fully contained within 32 bits space if we are not
- * running on a 460sx or 476fpe which have 64 bit bus addresses.
- */
- if (res->end > 0xffffffff &&
- !(of_device_is_compatible(hose->dn, "ibm,plb-pciex-460sx")
- || of_device_is_compatible(hose->dn, "ibm,plb-pciex-476fpe"))) {
- printk(KERN_ERR "%s: dma-ranges outside of 32 bits space\n",
- hose->dn->full_name);
- return -ENXIO;
- }
- out:
- dma_offset_set = 1;
- pci_dram_offset = res->start;
- hose->dma_window_base_cur = res->start;
- hose->dma_window_size = resource_size(res);
-
- printk(KERN_INFO "4xx PCI DMA offset set to 0x%08lx\n",
- pci_dram_offset);
- printk(KERN_INFO "4xx PCI DMA window base to 0x%016llx\n",
- (unsigned long long)hose->dma_window_base_cur);
- printk(KERN_INFO "DMA window size 0x%016llx\n",
- (unsigned long long)hose->dma_window_size);
- return 0;
-}
-
-/*
- * 4xx PCI 2.x part
- */
-
-static int __init ppc4xx_setup_one_pci_PMM(struct pci_controller *hose,
- void __iomem *reg,
- u64 plb_addr,
- u64 pci_addr,
- u64 size,
- unsigned int flags,
- int index)
-{
- u32 ma, pcila, pciha;
-
- /* Hack warning ! The "old" PCI 2.x cell only let us configure the low
- * 32-bit of incoming PLB addresses. The top 4 bits of the 36-bit
- * address are actually hard wired to a value that appears to depend
- * on the specific SoC. For example, it's 0 on 440EP and 1 on 440EPx.
- *
- * The trick here is we just crop those top bits and ignore them when
- * programming the chip. That means the device-tree has to be right
- * for the specific part used (we don't print a warning if it's wrong
- * but on the other hand, you'll crash quickly enough), but at least
- * this code should work whatever the hard coded value is
- */
- plb_addr &= 0xffffffffull;
-
- /* Note: Due to the above hack, the test below doesn't actually test
- * if you address is above 4G, but it tests that address and
- * (address + size) are both contained in the same 4G
- */
- if ((plb_addr + size) > 0xffffffffull || !is_power_of_2(size) ||
- size < 0x1000 || (plb_addr & (size - 1)) != 0) {
- printk(KERN_WARNING "%s: Resource out of range\n",
- hose->dn->full_name);
- return -1;
- }
- ma = (0xffffffffu << ilog2(size)) | 1;
- if (flags & IORESOURCE_PREFETCH)
- ma |= 2;
-
- pciha = RES_TO_U32_HIGH(pci_addr);
- pcila = RES_TO_U32_LOW(pci_addr);
-
- writel(plb_addr, reg + PCIL0_PMM0LA + (0x10 * index));
- writel(pcila, reg + PCIL0_PMM0PCILA + (0x10 * index));
- writel(pciha, reg + PCIL0_PMM0PCIHA + (0x10 * index));
- writel(ma, reg + PCIL0_PMM0MA + (0x10 * index));
-
- return 0;
-}
-
-static void __init ppc4xx_configure_pci_PMMs(struct pci_controller *hose,
- void __iomem *reg)
-{
- int i, j, found_isa_hole = 0;
-
- /* Setup outbound memory windows */
- for (i = j = 0; i < 3; i++) {
- struct resource *res = &hose->mem_resources[i];
- resource_size_t offset = hose->mem_offset[i];
-
- /* we only care about memory windows */
- if (!(res->flags & IORESOURCE_MEM))
- continue;
- if (j > 2) {
- printk(KERN_WARNING "%s: Too many ranges\n",
- hose->dn->full_name);
- break;
- }
-
- /* Configure the resource */
- if (ppc4xx_setup_one_pci_PMM(hose, reg,
- res->start,
- res->start - offset,
- resource_size(res),
- res->flags,
- j) == 0) {
- j++;
-
- /* If the resource PCI address is 0 then we have our
- * ISA memory hole
- */
- if (res->start == offset)
- found_isa_hole = 1;
- }
- }
-
- /* Handle ISA memory hole if not already covered */
- if (j <= 2 && !found_isa_hole && hose->isa_mem_size)
- if (ppc4xx_setup_one_pci_PMM(hose, reg, hose->isa_mem_phys, 0,
- hose->isa_mem_size, 0, j) == 0)
- printk(KERN_INFO "%s: Legacy ISA memory support enabled\n",
- hose->dn->full_name);
-}
-
-static void __init ppc4xx_configure_pci_PTMs(struct pci_controller *hose,
- void __iomem *reg,
- const struct resource *res)
-{
- resource_size_t size = resource_size(res);
- u32 sa;
-
- /* Calculate window size */
- sa = (0xffffffffu << ilog2(size)) | 1;
- sa |= 0x1;
-
- /* RAM is always at 0 local for now */
- writel(0, reg + PCIL0_PTM1LA);
- writel(sa, reg + PCIL0_PTM1MS);
-
- /* Map on PCI side */
- early_write_config_dword(hose, hose->first_busno, 0,
- PCI_BASE_ADDRESS_1, res->start);
- early_write_config_dword(hose, hose->first_busno, 0,
- PCI_BASE_ADDRESS_2, 0x00000000);
- early_write_config_word(hose, hose->first_busno, 0,
- PCI_COMMAND, 0x0006);
-}
-
-static void __init ppc4xx_probe_pci_bridge(struct device_node *np)
-{
- /* NYI */
- struct resource rsrc_cfg;
- struct resource rsrc_reg;
- struct resource dma_window;
- struct pci_controller *hose = NULL;
- void __iomem *reg = NULL;
- const int *bus_range;
- int primary = 0;
-
- /* Check if device is enabled */
- if (!of_device_is_available(np)) {
- printk(KERN_INFO "%s: Port disabled via device-tree\n",
- np->full_name);
- return;
- }
-
- /* Fetch config space registers address */
- if (of_address_to_resource(np, 0, &rsrc_cfg)) {
- printk(KERN_ERR "%s: Can't get PCI config register base !",
- np->full_name);
- return;
- }
- /* Fetch host bridge internal registers address */
- if (of_address_to_resource(np, 3, &rsrc_reg)) {
- printk(KERN_ERR "%s: Can't get PCI internal register base !",
- np->full_name);
- return;
- }
-
- /* Check if primary bridge */
- if (of_get_property(np, "primary", NULL))
- primary = 1;
-
- /* Get bus range if any */
- bus_range = of_get_property(np, "bus-range", NULL);
-
- /* Map registers */
- reg = ioremap(rsrc_reg.start, resource_size(&rsrc_reg));
- if (reg == NULL) {
- printk(KERN_ERR "%s: Can't map registers !", np->full_name);
- goto fail;
- }
-
- /* Allocate the host controller data structure */
- hose = pcibios_alloc_controller(np);
- if (!hose)
- goto fail;
-
- hose->first_busno = bus_range ? bus_range[0] : 0x0;
- hose->last_busno = bus_range ? bus_range[1] : 0xff;
-
- /* Setup config space */
- setup_indirect_pci(hose, rsrc_cfg.start, rsrc_cfg.start + 0x4, 0);
-
- /* Disable all windows */
- writel(0, reg + PCIL0_PMM0MA);
- writel(0, reg + PCIL0_PMM1MA);
- writel(0, reg + PCIL0_PMM2MA);
- writel(0, reg + PCIL0_PTM1MS);
- writel(0, reg + PCIL0_PTM2MS);
-
- /* Parse outbound mapping resources */
- pci_process_bridge_OF_ranges(hose, np, primary);
-
- /* Parse inbound mapping resources */
- if (ppc4xx_parse_dma_ranges(hose, reg, &dma_window) != 0)
- goto fail;
-
- /* Configure outbound ranges POMs */
- ppc4xx_configure_pci_PMMs(hose, reg);
-
- /* Configure inbound ranges PIMs */
- ppc4xx_configure_pci_PTMs(hose, reg, &dma_window);
-
- /* We don't need the registers anymore */
- iounmap(reg);
- return;
-
- fail:
- if (hose)
- pcibios_free_controller(hose);
- if (reg)
- iounmap(reg);
-}
-
-/*
- * 4xx PCI-X part
- */
-
-static int __init ppc4xx_setup_one_pcix_POM(struct pci_controller *hose,
- void __iomem *reg,
- u64 plb_addr,
- u64 pci_addr,
- u64 size,
- unsigned int flags,
- int index)
-{
- u32 lah, lal, pciah, pcial, sa;
-
- if (!is_power_of_2(size) || size < 0x1000 ||
- (plb_addr & (size - 1)) != 0) {
- printk(KERN_WARNING "%s: Resource out of range\n",
- hose->dn->full_name);
- return -1;
- }
-
- /* Calculate register values */
- lah = RES_TO_U32_HIGH(plb_addr);
- lal = RES_TO_U32_LOW(plb_addr);
- pciah = RES_TO_U32_HIGH(pci_addr);
- pcial = RES_TO_U32_LOW(pci_addr);
- sa = (0xffffffffu << ilog2(size)) | 0x1;
-
- /* Program register values */
- if (index == 0) {
- writel(lah, reg + PCIX0_POM0LAH);
- writel(lal, reg + PCIX0_POM0LAL);
- writel(pciah, reg + PCIX0_POM0PCIAH);
- writel(pcial, reg + PCIX0_POM0PCIAL);
- writel(sa, reg + PCIX0_POM0SA);
- } else {
- writel(lah, reg + PCIX0_POM1LAH);
- writel(lal, reg + PCIX0_POM1LAL);
- writel(pciah, reg + PCIX0_POM1PCIAH);
- writel(pcial, reg + PCIX0_POM1PCIAL);
- writel(sa, reg + PCIX0_POM1SA);
- }
-
- return 0;
-}
-
-static void __init ppc4xx_configure_pcix_POMs(struct pci_controller *hose,
- void __iomem *reg)
-{
- int i, j, found_isa_hole = 0;
-
- /* Setup outbound memory windows */
- for (i = j = 0; i < 3; i++) {
- struct resource *res = &hose->mem_resources[i];
- resource_size_t offset = hose->mem_offset[i];
-
- /* we only care about memory windows */
- if (!(res->flags & IORESOURCE_MEM))
- continue;
- if (j > 1) {
- printk(KERN_WARNING "%s: Too many ranges\n",
- hose->dn->full_name);
- break;
- }
-
- /* Configure the resource */
- if (ppc4xx_setup_one_pcix_POM(hose, reg,
- res->start,
- res->start - offset,
- resource_size(res),
- res->flags,
- j) == 0) {
- j++;
-
- /* If the resource PCI address is 0 then we have our
- * ISA memory hole
- */
- if (res->start == offset)
- found_isa_hole = 1;
- }
- }
-
- /* Handle ISA memory hole if not already covered */
- if (j <= 1 && !found_isa_hole && hose->isa_mem_size)
- if (ppc4xx_setup_one_pcix_POM(hose, reg, hose->isa_mem_phys, 0,
- hose->isa_mem_size, 0, j) == 0)
- printk(KERN_INFO "%s: Legacy ISA memory support enabled\n",
- hose->dn->full_name);
-}
-
-static void __init ppc4xx_configure_pcix_PIMs(struct pci_controller *hose,
- void __iomem *reg,
- const struct resource *res,
- int big_pim,
- int enable_msi_hole)
-{
- resource_size_t size = resource_size(res);
- u32 sa;
-
- /* RAM is always at 0 */
- writel(0x00000000, reg + PCIX0_PIM0LAH);
- writel(0x00000000, reg + PCIX0_PIM0LAL);
-
- /* Calculate window size */
- sa = (0xffffffffu << ilog2(size)) | 1;
- sa |= 0x1;
- if (res->flags & IORESOURCE_PREFETCH)
- sa |= 0x2;
- if (enable_msi_hole)
- sa |= 0x4;
- writel(sa, reg + PCIX0_PIM0SA);
- if (big_pim)
- writel(0xffffffff, reg + PCIX0_PIM0SAH);
-
- /* Map on PCI side */
- writel(0x00000000, reg + PCIX0_BAR0H);
- writel(res->start, reg + PCIX0_BAR0L);
- writew(0x0006, reg + PCIX0_COMMAND);
-}
-
-static void __init ppc4xx_probe_pcix_bridge(struct device_node *np)
-{
- struct resource rsrc_cfg;
- struct resource rsrc_reg;
- struct resource dma_window;
- struct pci_controller *hose = NULL;
- void __iomem *reg = NULL;
- const int *bus_range;
- int big_pim = 0, msi = 0, primary = 0;
-
- /* Fetch config space registers address */
- if (of_address_to_resource(np, 0, &rsrc_cfg)) {
- printk(KERN_ERR "%s:Can't get PCI-X config register base !",
- np->full_name);
- return;
- }
- /* Fetch host bridge internal registers address */
- if (of_address_to_resource(np, 3, &rsrc_reg)) {
- printk(KERN_ERR "%s: Can't get PCI-X internal register base !",
- np->full_name);
- return;
- }
-
- /* Check if it supports large PIMs (440GX) */
- if (of_get_property(np, "large-inbound-windows", NULL))
- big_pim = 1;
-
- /* Check if we should enable MSIs inbound hole */
- if (of_get_property(np, "enable-msi-hole", NULL))
- msi = 1;
-
- /* Check if primary bridge */
- if (of_get_property(np, "primary", NULL))
- primary = 1;
-
- /* Get bus range if any */
- bus_range = of_get_property(np, "bus-range", NULL);
-
- /* Map registers */
- reg = ioremap(rsrc_reg.start, resource_size(&rsrc_reg));
- if (reg == NULL) {
- printk(KERN_ERR "%s: Can't map registers !", np->full_name);
- goto fail;
- }
-
- /* Allocate the host controller data structure */
- hose = pcibios_alloc_controller(np);
- if (!hose)
- goto fail;
-
- hose->first_busno = bus_range ? bus_range[0] : 0x0;
- hose->last_busno = bus_range ? bus_range[1] : 0xff;
-
- /* Setup config space */
- setup_indirect_pci(hose, rsrc_cfg.start, rsrc_cfg.start + 0x4,
- PPC_INDIRECT_TYPE_SET_CFG_TYPE);
-
- /* Disable all windows */
- writel(0, reg + PCIX0_POM0SA);
- writel(0, reg + PCIX0_POM1SA);
- writel(0, reg + PCIX0_POM2SA);
- writel(0, reg + PCIX0_PIM0SA);
- writel(0, reg + PCIX0_PIM1SA);
- writel(0, reg + PCIX0_PIM2SA);
- if (big_pim) {
- writel(0, reg + PCIX0_PIM0SAH);
- writel(0, reg + PCIX0_PIM2SAH);
- }
-
- /* Parse outbound mapping resources */
- pci_process_bridge_OF_ranges(hose, np, primary);
-
- /* Parse inbound mapping resources */
- if (ppc4xx_parse_dma_ranges(hose, reg, &dma_window) != 0)
- goto fail;
-
- /* Configure outbound ranges POMs */
- ppc4xx_configure_pcix_POMs(hose, reg);
-
- /* Configure inbound ranges PIMs */
- ppc4xx_configure_pcix_PIMs(hose, reg, &dma_window, big_pim, msi);
-
- /* We don't need the registers anymore */
- iounmap(reg);
- return;
-
- fail:
- if (hose)
- pcibios_free_controller(hose);
- if (reg)
- iounmap(reg);
-}
-
-#ifdef CONFIG_PPC4xx_PCI_EXPRESS
-
-/*
- * 4xx PCI-Express part
- *
- * We support 3 parts currently based on the compatible property:
- *
- * ibm,plb-pciex-440spe
- * ibm,plb-pciex-405ex
- * ibm,plb-pciex-460ex
- *
- * Anything else will be rejected for now as they are all subtly
- * different unfortunately.
- *
- */
-
-#define MAX_PCIE_BUS_MAPPED 0x40
-
-struct ppc4xx_pciex_port
-{
- struct pci_controller *hose;
- struct device_node *node;
- unsigned int index;
- int endpoint;
- int link;
- int has_ibpre;
- unsigned int sdr_base;
- dcr_host_t dcrs;
- struct resource cfg_space;
- struct resource utl_regs;
- void __iomem *utl_base;
-};
-
-static struct ppc4xx_pciex_port *ppc4xx_pciex_ports;
-static unsigned int ppc4xx_pciex_port_count;
-
-struct ppc4xx_pciex_hwops
-{
- bool want_sdr;
- int (*core_init)(struct device_node *np);
- int (*port_init_hw)(struct ppc4xx_pciex_port *port);
- int (*setup_utl)(struct ppc4xx_pciex_port *port);
- void (*check_link)(struct ppc4xx_pciex_port *port);
-};
-
-static struct ppc4xx_pciex_hwops *ppc4xx_pciex_hwops;
-
-static int __init ppc4xx_pciex_wait_on_sdr(struct ppc4xx_pciex_port *port,
- unsigned int sdr_offset,
- unsigned int mask,
- unsigned int value,
- int timeout_ms)
-{
- u32 val;
-
- while(timeout_ms--) {
- val = mfdcri(SDR0, port->sdr_base + sdr_offset);
- if ((val & mask) == value) {
- pr_debug("PCIE%d: Wait on SDR %x success with tm %d (%08x)\n",
- port->index, sdr_offset, timeout_ms, val);
- return 0;
- }
- msleep(1);
- }
- return -1;
-}
-
-static int __init ppc4xx_pciex_port_reset_sdr(struct ppc4xx_pciex_port *port)
-{
- /* Wait for reset to complete */
- if (ppc4xx_pciex_wait_on_sdr(port, PESDRn_RCSSTS, 1 << 20, 0, 10)) {
- printk(KERN_WARNING "PCIE%d: PGRST failed\n",
- port->index);
- return -1;
- }
- return 0;
-}
-
-
-static void __init ppc4xx_pciex_check_link_sdr(struct ppc4xx_pciex_port *port)
-{
- printk(KERN_INFO "PCIE%d: Checking link...\n", port->index);
-
- /* Check for card presence detect if supported, if not, just wait for
- * link unconditionally.
- *
- * note that we don't fail if there is no link, we just filter out
- * config space accesses. That way, it will be easier to implement
- * hotplug later on.
- */
- if (!port->has_ibpre ||
- !ppc4xx_pciex_wait_on_sdr(port, PESDRn_LOOP,
- 1 << 28, 1 << 28, 100)) {
- printk(KERN_INFO
- "PCIE%d: Device detected, waiting for link...\n",
- port->index);
- if (ppc4xx_pciex_wait_on_sdr(port, PESDRn_LOOP,
- 0x1000, 0x1000, 2000))
- printk(KERN_WARNING
- "PCIE%d: Link up failed\n", port->index);
- else {
- printk(KERN_INFO
- "PCIE%d: link is up !\n", port->index);
- port->link = 1;
- }
- } else
- printk(KERN_INFO "PCIE%d: No device detected.\n", port->index);
-}
-
-#ifdef CONFIG_44x
-
-/* Check various reset bits of the 440SPe PCIe core */
-static int __init ppc440spe_pciex_check_reset(struct device_node *np)
-{
- u32 valPE0, valPE1, valPE2;
- int err = 0;
-
- /* SDR0_PEGPLLLCT1 reset */
- if (!(mfdcri(SDR0, PESDR0_PLLLCT1) & 0x01000000)) {
- /*
- * the PCIe core was probably already initialised
- * by firmware - let's re-reset RCSSET regs
- *
- * -- Shouldn't we also re-reset the whole thing ? -- BenH
- */
- pr_debug("PCIE: SDR0_PLLLCT1 already reset.\n");
- mtdcri(SDR0, PESDR0_440SPE_RCSSET, 0x01010000);
- mtdcri(SDR0, PESDR1_440SPE_RCSSET, 0x01010000);
- mtdcri(SDR0, PESDR2_440SPE_RCSSET, 0x01010000);
- }
-
- valPE0 = mfdcri(SDR0, PESDR0_440SPE_RCSSET);
- valPE1 = mfdcri(SDR0, PESDR1_440SPE_RCSSET);
- valPE2 = mfdcri(SDR0, PESDR2_440SPE_RCSSET);
-
- /* SDR0_PExRCSSET rstgu */
- if (!(valPE0 & 0x01000000) ||
- !(valPE1 & 0x01000000) ||
- !(valPE2 & 0x01000000)) {
- printk(KERN_INFO "PCIE: SDR0_PExRCSSET rstgu error\n");
- err = -1;
- }
-
- /* SDR0_PExRCSSET rstdl */
- if (!(valPE0 & 0x00010000) ||
- !(valPE1 & 0x00010000) ||
- !(valPE2 & 0x00010000)) {
- printk(KERN_INFO "PCIE: SDR0_PExRCSSET rstdl error\n");
- err = -1;
- }
-
- /* SDR0_PExRCSSET rstpyn */
- if ((valPE0 & 0x00001000) ||
- (valPE1 & 0x00001000) ||
- (valPE2 & 0x00001000)) {
- printk(KERN_INFO "PCIE: SDR0_PExRCSSET rstpyn error\n");
- err = -1;
- }
-
- /* SDR0_PExRCSSET hldplb */
- if ((valPE0 & 0x10000000) ||
- (valPE1 & 0x10000000) ||
- (valPE2 & 0x10000000)) {
- printk(KERN_INFO "PCIE: SDR0_PExRCSSET hldplb error\n");
- err = -1;
- }
-
- /* SDR0_PExRCSSET rdy */
- if ((valPE0 & 0x00100000) ||
- (valPE1 & 0x00100000) ||
- (valPE2 & 0x00100000)) {
- printk(KERN_INFO "PCIE: SDR0_PExRCSSET rdy error\n");
- err = -1;
- }
-
- /* SDR0_PExRCSSET shutdown */
- if ((valPE0 & 0x00000100) ||
- (valPE1 & 0x00000100) ||
- (valPE2 & 0x00000100)) {
- printk(KERN_INFO "PCIE: SDR0_PExRCSSET shutdown error\n");
- err = -1;
- }
-
- return err;
-}
-
-/* Global PCIe core initializations for 440SPe core */
-static int __init ppc440spe_pciex_core_init(struct device_node *np)
-{
- int time_out = 20;
-
- /* Set PLL clock receiver to LVPECL */
- dcri_clrset(SDR0, PESDR0_PLLLCT1, 0, 1 << 28);
-
- /* Shouldn't we do all the calibration stuff etc... here ? */
- if (ppc440spe_pciex_check_reset(np))
- return -ENXIO;
-
- if (!(mfdcri(SDR0, PESDR0_PLLLCT2) & 0x10000)) {
- printk(KERN_INFO "PCIE: PESDR_PLLCT2 resistance calibration "
- "failed (0x%08x)\n",
- mfdcri(SDR0, PESDR0_PLLLCT2));
- return -1;
- }
-
- /* De-assert reset of PCIe PLL, wait for lock */
- dcri_clrset(SDR0, PESDR0_PLLLCT1, 1 << 24, 0);
- udelay(3);
-
- while (time_out) {
- if (!(mfdcri(SDR0, PESDR0_PLLLCT3) & 0x10000000)) {
- time_out--;
- udelay(1);
- } else
- break;
- }
- if (!time_out) {
- printk(KERN_INFO "PCIE: VCO output not locked\n");
- return -1;
- }
-
- pr_debug("PCIE initialization OK\n");
-
- return 3;
-}
-
-static int __init ppc440spe_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
-{
- u32 val = 1 << 24;
-
- if (port->endpoint)
- val = PTYPE_LEGACY_ENDPOINT << 20;
- else
- val = PTYPE_ROOT_PORT << 20;
-
- if (port->index == 0)
- val |= LNKW_X8 << 12;
- else
- val |= LNKW_X4 << 12;
-
- mtdcri(SDR0, port->sdr_base + PESDRn_DLPSET, val);
- mtdcri(SDR0, port->sdr_base + PESDRn_UTLSET1, 0x20222222);
- if (ppc440spe_revA())
- mtdcri(SDR0, port->sdr_base + PESDRn_UTLSET2, 0x11000000);
- mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL0SET1, 0x35000000);
- mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL1SET1, 0x35000000);
- mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL2SET1, 0x35000000);
- mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL3SET1, 0x35000000);
- if (port->index == 0) {
- mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL4SET1,
- 0x35000000);
- mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL5SET1,
- 0x35000000);
- mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL6SET1,
- 0x35000000);
- mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL7SET1,
- 0x35000000);
- }
- dcri_clrset(SDR0, port->sdr_base + PESDRn_RCSSET,
- (1 << 24) | (1 << 16), 1 << 12);
-
- return ppc4xx_pciex_port_reset_sdr(port);
-}
-
-static int __init ppc440speA_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
-{
- return ppc440spe_pciex_init_port_hw(port);
-}
-
-static int __init ppc440speB_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
-{
- int rc = ppc440spe_pciex_init_port_hw(port);
-
- port->has_ibpre = 1;
-
- return rc;
-}
-
-static int ppc440speA_pciex_init_utl(struct ppc4xx_pciex_port *port)
-{
- /* XXX Check what that value means... I hate magic */
- dcr_write(port->dcrs, DCRO_PEGPL_SPECIAL, 0x68782800);
-
- /*
- * Set buffer allocations and then assert VRB and TXE.
- */
- out_be32(port->utl_base + PEUTL_OUTTR, 0x08000000);
- out_be32(port->utl_base + PEUTL_INTR, 0x02000000);
- out_be32(port->utl_base + PEUTL_OPDBSZ, 0x10000000);
- out_be32(port->utl_base + PEUTL_PBBSZ, 0x53000000);
- out_be32(port->utl_base + PEUTL_IPHBSZ, 0x08000000);
- out_be32(port->utl_base + PEUTL_IPDBSZ, 0x10000000);
- out_be32(port->utl_base + PEUTL_RCIRQEN, 0x00f00000);
- out_be32(port->utl_base + PEUTL_PCTL, 0x80800066);
-
- return 0;
-}
-
-static int ppc440speB_pciex_init_utl(struct ppc4xx_pciex_port *port)
-{
- /* Report CRS to the operating system */
- out_be32(port->utl_base + PEUTL_PBCTL, 0x08000000);
-
- return 0;
-}
-
-static struct ppc4xx_pciex_hwops ppc440speA_pcie_hwops __initdata =
-{
- .want_sdr = true,
- .core_init = ppc440spe_pciex_core_init,
- .port_init_hw = ppc440speA_pciex_init_port_hw,
- .setup_utl = ppc440speA_pciex_init_utl,
- .check_link = ppc4xx_pciex_check_link_sdr,
-};
-
-static struct ppc4xx_pciex_hwops ppc440speB_pcie_hwops __initdata =
-{
- .want_sdr = true,
- .core_init = ppc440spe_pciex_core_init,
- .port_init_hw = ppc440speB_pciex_init_port_hw,
- .setup_utl = ppc440speB_pciex_init_utl,
- .check_link = ppc4xx_pciex_check_link_sdr,
-};
-
-static int __init ppc460ex_pciex_core_init(struct device_node *np)
-{
- /* Nothing to do, return 2 ports */
- return 2;
-}
-
-static int __init ppc460ex_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
-{
- u32 val;
- u32 utlset1;
-
- if (port->endpoint)
- val = PTYPE_LEGACY_ENDPOINT << 20;
- else
- val = PTYPE_ROOT_PORT << 20;
-
- if (port->index == 0) {
- val |= LNKW_X1 << 12;
- utlset1 = 0x20000000;
- } else {
- val |= LNKW_X4 << 12;
- utlset1 = 0x20101101;
- }
-
- mtdcri(SDR0, port->sdr_base + PESDRn_DLPSET, val);
- mtdcri(SDR0, port->sdr_base + PESDRn_UTLSET1, utlset1);
- mtdcri(SDR0, port->sdr_base + PESDRn_UTLSET2, 0x01210000);
-
- switch (port->index) {
- case 0:
- mtdcri(SDR0, PESDR0_460EX_L0CDRCTL, 0x00003230);
- mtdcri(SDR0, PESDR0_460EX_L0DRV, 0x00000130);
- mtdcri(SDR0, PESDR0_460EX_L0CLK, 0x00000006);
-
- mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST,0x10000000);
- break;
-
- case 1:
- mtdcri(SDR0, PESDR1_460EX_L0CDRCTL, 0x00003230);
- mtdcri(SDR0, PESDR1_460EX_L1CDRCTL, 0x00003230);
- mtdcri(SDR0, PESDR1_460EX_L2CDRCTL, 0x00003230);
- mtdcri(SDR0, PESDR1_460EX_L3CDRCTL, 0x00003230);
- mtdcri(SDR0, PESDR1_460EX_L0DRV, 0x00000130);
- mtdcri(SDR0, PESDR1_460EX_L1DRV, 0x00000130);
- mtdcri(SDR0, PESDR1_460EX_L2DRV, 0x00000130);
- mtdcri(SDR0, PESDR1_460EX_L3DRV, 0x00000130);
- mtdcri(SDR0, PESDR1_460EX_L0CLK, 0x00000006);
- mtdcri(SDR0, PESDR1_460EX_L1CLK, 0x00000006);
- mtdcri(SDR0, PESDR1_460EX_L2CLK, 0x00000006);
- mtdcri(SDR0, PESDR1_460EX_L3CLK, 0x00000006);
-
- mtdcri(SDR0, PESDR1_460EX_PHY_CTL_RST,0x10000000);
- break;
- }
-
- mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET,
- mfdcri(SDR0, port->sdr_base + PESDRn_RCSSET) |
- (PESDRx_RCSSET_RSTGU | PESDRx_RCSSET_RSTPYN));
-
- /* Poll for PHY reset */
- /* XXX FIXME add timeout */
- switch (port->index) {
- case 0:
- while (!(mfdcri(SDR0, PESDR0_460EX_RSTSTA) & 0x1))
- udelay(10);
- break;
- case 1:
- while (!(mfdcri(SDR0, PESDR1_460EX_RSTSTA) & 0x1))
- udelay(10);
- break;
- }
-
- mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET,
- (mfdcri(SDR0, port->sdr_base + PESDRn_RCSSET) &
- ~(PESDRx_RCSSET_RSTGU | PESDRx_RCSSET_RSTDL)) |
- PESDRx_RCSSET_RSTPYN);
-
- port->has_ibpre = 1;
-
- return ppc4xx_pciex_port_reset_sdr(port);
-}
-
-static int ppc460ex_pciex_init_utl(struct ppc4xx_pciex_port *port)
-{
- dcr_write(port->dcrs, DCRO_PEGPL_SPECIAL, 0x0);
-
- /*
- * Set buffer allocations and then assert VRB and TXE.
- */
- out_be32(port->utl_base + PEUTL_PBCTL, 0x0800000c);
- out_be32(port->utl_base + PEUTL_OUTTR, 0x08000000);
- out_be32(port->utl_base + PEUTL_INTR, 0x02000000);
- out_be32(port->utl_base + PEUTL_OPDBSZ, 0x04000000);
- out_be32(port->utl_base + PEUTL_PBBSZ, 0x00000000);
- out_be32(port->utl_base + PEUTL_IPHBSZ, 0x02000000);
- out_be32(port->utl_base + PEUTL_IPDBSZ, 0x04000000);
- out_be32(port->utl_base + PEUTL_RCIRQEN,0x00f00000);
- out_be32(port->utl_base + PEUTL_PCTL, 0x80800066);
-
- return 0;
-}
-
-static struct ppc4xx_pciex_hwops ppc460ex_pcie_hwops __initdata =
-{
- .want_sdr = true,
- .core_init = ppc460ex_pciex_core_init,
- .port_init_hw = ppc460ex_pciex_init_port_hw,
- .setup_utl = ppc460ex_pciex_init_utl,
- .check_link = ppc4xx_pciex_check_link_sdr,
-};
-
-static int __init apm821xx_pciex_core_init(struct device_node *np)
-{
- /* Return the number of pcie port */
- return 1;
-}
-
-static int __init apm821xx_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
-{
- u32 val;
-
- /*
- * Do a software reset on PCIe ports.
- * This code is to fix the issue that pci drivers doesn't re-assign
- * bus number for PCIE devices after Uboot
- * scanned and configured all the buses (eg. PCIE NIC IntelPro/1000
- * PT quad port, SAS LSI 1064E)
- */
-
- mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x0);
- mdelay(10);
-
- if (port->endpoint)
- val = PTYPE_LEGACY_ENDPOINT << 20;
- else
- val = PTYPE_ROOT_PORT << 20;
-
- val |= LNKW_X1 << 12;
-
- mtdcri(SDR0, port->sdr_base + PESDRn_DLPSET, val);
- mtdcri(SDR0, port->sdr_base + PESDRn_UTLSET1, 0x00000000);
- mtdcri(SDR0, port->sdr_base + PESDRn_UTLSET2, 0x01010000);
-
- mtdcri(SDR0, PESDR0_460EX_L0CDRCTL, 0x00003230);
- mtdcri(SDR0, PESDR0_460EX_L0DRV, 0x00000130);
- mtdcri(SDR0, PESDR0_460EX_L0CLK, 0x00000006);
-
- mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x10000000);
- mdelay(50);
- mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x30000000);
-
- mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET,
- mfdcri(SDR0, port->sdr_base + PESDRn_RCSSET) |
- (PESDRx_RCSSET_RSTGU | PESDRx_RCSSET_RSTPYN));
-
- /* Poll for PHY reset */
- val = PESDR0_460EX_RSTSTA - port->sdr_base;
- if (ppc4xx_pciex_wait_on_sdr(port, val, 0x1, 1, 100)) {
- printk(KERN_WARNING "%s: PCIE: Can't reset PHY\n", __func__);
- return -EBUSY;
- } else {
- mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET,
- (mfdcri(SDR0, port->sdr_base + PESDRn_RCSSET) &
- ~(PESDRx_RCSSET_RSTGU | PESDRx_RCSSET_RSTDL)) |
- PESDRx_RCSSET_RSTPYN);
-
- port->has_ibpre = 1;
- return 0;
- }
-}
-
-static struct ppc4xx_pciex_hwops apm821xx_pcie_hwops __initdata = {
- .want_sdr = true,
- .core_init = apm821xx_pciex_core_init,
- .port_init_hw = apm821xx_pciex_init_port_hw,
- .setup_utl = ppc460ex_pciex_init_utl,
- .check_link = ppc4xx_pciex_check_link_sdr,
-};
-
-static int __init ppc460sx_pciex_core_init(struct device_node *np)
-{
- /* HSS drive amplitude */
- mtdcri(SDR0, PESDR0_460SX_HSSL0DAMP, 0xB9843211);
- mtdcri(SDR0, PESDR0_460SX_HSSL1DAMP, 0xB9843211);
- mtdcri(SDR0, PESDR0_460SX_HSSL2DAMP, 0xB9843211);
- mtdcri(SDR0, PESDR0_460SX_HSSL3DAMP, 0xB9843211);
- mtdcri(SDR0, PESDR0_460SX_HSSL4DAMP, 0xB9843211);
- mtdcri(SDR0, PESDR0_460SX_HSSL5DAMP, 0xB9843211);
- mtdcri(SDR0, PESDR0_460SX_HSSL6DAMP, 0xB9843211);
- mtdcri(SDR0, PESDR0_460SX_HSSL7DAMP, 0xB9843211);
-
- mtdcri(SDR0, PESDR1_460SX_HSSL0DAMP, 0xB9843211);
- mtdcri(SDR0, PESDR1_460SX_HSSL1DAMP, 0xB9843211);
- mtdcri(SDR0, PESDR1_460SX_HSSL2DAMP, 0xB9843211);
- mtdcri(SDR0, PESDR1_460SX_HSSL3DAMP, 0xB9843211);
-
- mtdcri(SDR0, PESDR2_460SX_HSSL0DAMP, 0xB9843211);
- mtdcri(SDR0, PESDR2_460SX_HSSL1DAMP, 0xB9843211);
- mtdcri(SDR0, PESDR2_460SX_HSSL2DAMP, 0xB9843211);
- mtdcri(SDR0, PESDR2_460SX_HSSL3DAMP, 0xB9843211);
-
- /* HSS TX pre-emphasis */
- mtdcri(SDR0, PESDR0_460SX_HSSL0COEFA, 0xDCB98987);
- mtdcri(SDR0, PESDR0_460SX_HSSL1COEFA, 0xDCB98987);
- mtdcri(SDR0, PESDR0_460SX_HSSL2COEFA, 0xDCB98987);
- mtdcri(SDR0, PESDR0_460SX_HSSL3COEFA, 0xDCB98987);
- mtdcri(SDR0, PESDR0_460SX_HSSL4COEFA, 0xDCB98987);
- mtdcri(SDR0, PESDR0_460SX_HSSL5COEFA, 0xDCB98987);
- mtdcri(SDR0, PESDR0_460SX_HSSL6COEFA, 0xDCB98987);
- mtdcri(SDR0, PESDR0_460SX_HSSL7COEFA, 0xDCB98987);
-
- mtdcri(SDR0, PESDR1_460SX_HSSL0COEFA, 0xDCB98987);
- mtdcri(SDR0, PESDR1_460SX_HSSL1COEFA, 0xDCB98987);
- mtdcri(SDR0, PESDR1_460SX_HSSL2COEFA, 0xDCB98987);
- mtdcri(SDR0, PESDR1_460SX_HSSL3COEFA, 0xDCB98987);
-
- mtdcri(SDR0, PESDR2_460SX_HSSL0COEFA, 0xDCB98987);
- mtdcri(SDR0, PESDR2_460SX_HSSL1COEFA, 0xDCB98987);
- mtdcri(SDR0, PESDR2_460SX_HSSL2COEFA, 0xDCB98987);
- mtdcri(SDR0, PESDR2_460SX_HSSL3COEFA, 0xDCB98987);
-
- /* HSS TX calibration control */
- mtdcri(SDR0, PESDR0_460SX_HSSL1CALDRV, 0x22222222);
- mtdcri(SDR0, PESDR1_460SX_HSSL1CALDRV, 0x22220000);
- mtdcri(SDR0, PESDR2_460SX_HSSL1CALDRV, 0x22220000);
-
- /* HSS TX slew control */
- mtdcri(SDR0, PESDR0_460SX_HSSSLEW, 0xFFFFFFFF);
- mtdcri(SDR0, PESDR1_460SX_HSSSLEW, 0xFFFF0000);
- mtdcri(SDR0, PESDR2_460SX_HSSSLEW, 0xFFFF0000);
-
- /* Set HSS PRBS enabled */
- mtdcri(SDR0, PESDR0_460SX_HSSCTLSET, 0x00001130);
- mtdcri(SDR0, PESDR2_460SX_HSSCTLSET, 0x00001130);
-
- udelay(100);
-
- /* De-assert PLLRESET */
- dcri_clrset(SDR0, PESDR0_PLLLCT2, 0x00000100, 0);
-
- /* Reset DL, UTL, GPL before configuration */
- mtdcri(SDR0, PESDR0_460SX_RCSSET,
- PESDRx_RCSSET_RSTDL | PESDRx_RCSSET_RSTGU);
- mtdcri(SDR0, PESDR1_460SX_RCSSET,
- PESDRx_RCSSET_RSTDL | PESDRx_RCSSET_RSTGU);
- mtdcri(SDR0, PESDR2_460SX_RCSSET,
- PESDRx_RCSSET_RSTDL | PESDRx_RCSSET_RSTGU);
-
- udelay(100);
-
- /*
- * If bifurcation is not enabled, u-boot would have disabled the
- * third PCIe port
- */
- if (((mfdcri(SDR0, PESDR1_460SX_HSSCTLSET) & 0x00000001) ==
- 0x00000001)) {
- printk(KERN_INFO "PCI: PCIE bifurcation setup successfully.\n");
- printk(KERN_INFO "PCI: Total 3 PCIE ports are present\n");
- return 3;
- }
-
- printk(KERN_INFO "PCI: Total 2 PCIE ports are present\n");
- return 2;
-}
-
-static int __init ppc460sx_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
-{
-
- if (port->endpoint)
- dcri_clrset(SDR0, port->sdr_base + PESDRn_UTLSET2,
- 0x01000000, 0);
- else
- dcri_clrset(SDR0, port->sdr_base + PESDRn_UTLSET2,
- 0, 0x01000000);
-
- dcri_clrset(SDR0, port->sdr_base + PESDRn_RCSSET,
- (PESDRx_RCSSET_RSTGU | PESDRx_RCSSET_RSTDL),
- PESDRx_RCSSET_RSTPYN);
-
- port->has_ibpre = 1;
-
- return ppc4xx_pciex_port_reset_sdr(port);
-}
-
-static int ppc460sx_pciex_init_utl(struct ppc4xx_pciex_port *port)
-{
- /* Max 128 Bytes */
- out_be32 (port->utl_base + PEUTL_PBBSZ, 0x00000000);
- /* Assert VRB and TXE - per datasheet turn off addr validation */
- out_be32(port->utl_base + PEUTL_PCTL, 0x80800000);
- return 0;
-}
-
-static void __init ppc460sx_pciex_check_link(struct ppc4xx_pciex_port *port)
-{
- void __iomem *mbase;
- int attempt = 50;
-
- port->link = 0;
-
- mbase = ioremap(port->cfg_space.start + 0x10000000, 0x1000);
- if (mbase == NULL) {
- printk(KERN_ERR "%s: Can't map internal config space !",
- port->node->full_name);
- goto done;
- }
-
- while (attempt && (0 == (in_le32(mbase + PECFG_460SX_DLLSTA)
- & PECFG_460SX_DLLSTA_LINKUP))) {
- attempt--;
- mdelay(10);
- }
- if (attempt)
- port->link = 1;
-done:
- iounmap(mbase);
-
-}
-
-static struct ppc4xx_pciex_hwops ppc460sx_pcie_hwops __initdata = {
- .want_sdr = true,
- .core_init = ppc460sx_pciex_core_init,
- .port_init_hw = ppc460sx_pciex_init_port_hw,
- .setup_utl = ppc460sx_pciex_init_utl,
- .check_link = ppc460sx_pciex_check_link,
-};
-
-#endif /* CONFIG_44x */
-
-#ifdef CONFIG_40x
-
-static int __init ppc405ex_pciex_core_init(struct device_node *np)
-{
- /* Nothing to do, return 2 ports */
- return 2;
-}
-
-static void ppc405ex_pcie_phy_reset(struct ppc4xx_pciex_port *port)
-{
- /* Assert the PE0_PHY reset */
- mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET, 0x01010000);
- msleep(1);
-
- /* deassert the PE0_hotreset */
- if (port->endpoint)
- mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET, 0x01111000);
- else
- mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET, 0x01101000);
-
- /* poll for phy !reset */
- /* XXX FIXME add timeout */
- while (!(mfdcri(SDR0, port->sdr_base + PESDRn_405EX_PHYSTA) & 0x00001000))
- ;
-
- /* deassert the PE0_gpl_utl_reset */
- mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET, 0x00101000);
-}
-
-static int __init ppc405ex_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
-{
- u32 val;
-
- if (port->endpoint)
- val = PTYPE_LEGACY_ENDPOINT;
- else
- val = PTYPE_ROOT_PORT;
-
- mtdcri(SDR0, port->sdr_base + PESDRn_DLPSET,
- 1 << 24 | val << 20 | LNKW_X1 << 12);
-
- mtdcri(SDR0, port->sdr_base + PESDRn_UTLSET1, 0x00000000);
- mtdcri(SDR0, port->sdr_base + PESDRn_UTLSET2, 0x01010000);
- mtdcri(SDR0, port->sdr_base + PESDRn_405EX_PHYSET1, 0x720F0000);
- mtdcri(SDR0, port->sdr_base + PESDRn_405EX_PHYSET2, 0x70600003);
-
- /*
- * Only reset the PHY when no link is currently established.
- * This is for the Atheros PCIe board which has problems to establish
- * the link (again) after this PHY reset. All other currently tested
- * PCIe boards don't show this problem.
- * This has to be re-tested and fixed in a later release!
- */
- val = mfdcri(SDR0, port->sdr_base + PESDRn_LOOP);
- if (!(val & 0x00001000))
- ppc405ex_pcie_phy_reset(port);
-
- dcr_write(port->dcrs, DCRO_PEGPL_CFG, 0x10000000); /* guarded on */
-
- port->has_ibpre = 1;
-
- return ppc4xx_pciex_port_reset_sdr(port);
-}
-
-static int ppc405ex_pciex_init_utl(struct ppc4xx_pciex_port *port)
-{
- dcr_write(port->dcrs, DCRO_PEGPL_SPECIAL, 0x0);
-
- /*
- * Set buffer allocations and then assert VRB and TXE.
- */
- out_be32(port->utl_base + PEUTL_OUTTR, 0x02000000);
- out_be32(port->utl_base + PEUTL_INTR, 0x02000000);
- out_be32(port->utl_base + PEUTL_OPDBSZ, 0x04000000);
- out_be32(port->utl_base + PEUTL_PBBSZ, 0x21000000);
- out_be32(port->utl_base + PEUTL_IPHBSZ, 0x02000000);
- out_be32(port->utl_base + PEUTL_IPDBSZ, 0x04000000);
- out_be32(port->utl_base + PEUTL_RCIRQEN, 0x00f00000);
- out_be32(port->utl_base + PEUTL_PCTL, 0x80800066);
-
- out_be32(port->utl_base + PEUTL_PBCTL, 0x08000000);
-
- return 0;
-}
-
-static struct ppc4xx_pciex_hwops ppc405ex_pcie_hwops __initdata =
-{
- .want_sdr = true,
- .core_init = ppc405ex_pciex_core_init,
- .port_init_hw = ppc405ex_pciex_init_port_hw,
- .setup_utl = ppc405ex_pciex_init_utl,
- .check_link = ppc4xx_pciex_check_link_sdr,
-};
-
-#endif /* CONFIG_40x */
-
-#ifdef CONFIG_476FPE
-static int __init ppc_476fpe_pciex_core_init(struct device_node *np)
-{
- return 4;
-}
-
-static void __init ppc_476fpe_pciex_check_link(struct ppc4xx_pciex_port *port)
-{
- u32 timeout_ms = 20;
- u32 val = 0, mask = (PECFG_TLDLP_LNKUP|PECFG_TLDLP_PRESENT);
- void __iomem *mbase = ioremap(port->cfg_space.start + 0x10000000,
- 0x1000);
-
- printk(KERN_INFO "PCIE%d: Checking link...\n", port->index);
-
- if (mbase == NULL) {
- printk(KERN_WARNING "PCIE%d: failed to get cfg space\n",
- port->index);
- return;
- }
-
- while (timeout_ms--) {
- val = in_le32(mbase + PECFG_TLDLP);
-
- if ((val & mask) == mask)
- break;
- msleep(10);
- }
-
- if (val & PECFG_TLDLP_PRESENT) {
- printk(KERN_INFO "PCIE%d: link is up !\n", port->index);
- port->link = 1;
- } else
- printk(KERN_WARNING "PCIE%d: Link up failed\n", port->index);
-
- iounmap(mbase);
- return;
-}
-
-static struct ppc4xx_pciex_hwops ppc_476fpe_pcie_hwops __initdata =
-{
- .core_init = ppc_476fpe_pciex_core_init,
- .check_link = ppc_476fpe_pciex_check_link,
-};
-#endif /* CONFIG_476FPE */
-
-/* Check that the core has been initied and if not, do it */
-static int __init ppc4xx_pciex_check_core_init(struct device_node *np)
-{
- static int core_init;
- int count = -ENODEV;
-
- if (core_init++)
- return 0;
-
-#ifdef CONFIG_44x
- if (of_device_is_compatible(np, "ibm,plb-pciex-440spe")) {
- if (ppc440spe_revA())
- ppc4xx_pciex_hwops = &ppc440speA_pcie_hwops;
- else
- ppc4xx_pciex_hwops = &ppc440speB_pcie_hwops;
- }
- if (of_device_is_compatible(np, "ibm,plb-pciex-460ex"))
- ppc4xx_pciex_hwops = &ppc460ex_pcie_hwops;
- if (of_device_is_compatible(np, "ibm,plb-pciex-460sx"))
- ppc4xx_pciex_hwops = &ppc460sx_pcie_hwops;
- if (of_device_is_compatible(np, "ibm,plb-pciex-apm821xx"))
- ppc4xx_pciex_hwops = &apm821xx_pcie_hwops;
-#endif /* CONFIG_44x */
-#ifdef CONFIG_40x
- if (of_device_is_compatible(np, "ibm,plb-pciex-405ex"))
- ppc4xx_pciex_hwops = &ppc405ex_pcie_hwops;
-#endif
-#ifdef CONFIG_476FPE
- if (of_device_is_compatible(np, "ibm,plb-pciex-476fpe")
- || of_device_is_compatible(np, "ibm,plb-pciex-476gtr"))
- ppc4xx_pciex_hwops = &ppc_476fpe_pcie_hwops;
-#endif
- if (ppc4xx_pciex_hwops == NULL) {
- printk(KERN_WARNING "PCIE: unknown host type %s\n",
- np->full_name);
- return -ENODEV;
- }
-
- count = ppc4xx_pciex_hwops->core_init(np);
- if (count > 0) {
- ppc4xx_pciex_ports =
- kzalloc(count * sizeof(struct ppc4xx_pciex_port),
- GFP_KERNEL);
- if (ppc4xx_pciex_ports) {
- ppc4xx_pciex_port_count = count;
- return 0;
- }
- printk(KERN_WARNING "PCIE: failed to allocate ports array\n");
- return -ENOMEM;
- }
- return -ENODEV;
-}
-
-static void __init ppc4xx_pciex_port_init_mapping(struct ppc4xx_pciex_port *port)
-{
- /* We map PCI Express configuration based on the reg property */
- dcr_write(port->dcrs, DCRO_PEGPL_CFGBAH,
- RES_TO_U32_HIGH(port->cfg_space.start));
- dcr_write(port->dcrs, DCRO_PEGPL_CFGBAL,
- RES_TO_U32_LOW(port->cfg_space.start));
-
- /* XXX FIXME: Use size from reg property. For now, map 512M */
- dcr_write(port->dcrs, DCRO_PEGPL_CFGMSK, 0xe0000001);
-
- /* We map UTL registers based on the reg property */
- dcr_write(port->dcrs, DCRO_PEGPL_REGBAH,
- RES_TO_U32_HIGH(port->utl_regs.start));
- dcr_write(port->dcrs, DCRO_PEGPL_REGBAL,
- RES_TO_U32_LOW(port->utl_regs.start));
-
- /* XXX FIXME: Use size from reg property */
- dcr_write(port->dcrs, DCRO_PEGPL_REGMSK, 0x00007001);
-
- /* Disable all other outbound windows */
- dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL, 0);
- dcr_write(port->dcrs, DCRO_PEGPL_OMR2MSKL, 0);
- dcr_write(port->dcrs, DCRO_PEGPL_OMR3MSKL, 0);
- dcr_write(port->dcrs, DCRO_PEGPL_MSGMSK, 0);
-}
-
-static int __init ppc4xx_pciex_port_init(struct ppc4xx_pciex_port *port)
-{
- int rc = 0;
-
- /* Init HW */
- if (ppc4xx_pciex_hwops->port_init_hw)
- rc = ppc4xx_pciex_hwops->port_init_hw(port);
- if (rc != 0)
- return rc;
-
- /*
- * Initialize mapping: disable all regions and configure
- * CFG and REG regions based on resources in the device tree
- */
- ppc4xx_pciex_port_init_mapping(port);
-
- if (ppc4xx_pciex_hwops->check_link)
- ppc4xx_pciex_hwops->check_link(port);
-
- /*
- * Map UTL
- */
- port->utl_base = ioremap(port->utl_regs.start, 0x100);
- BUG_ON(port->utl_base == NULL);
-
- /*
- * Setup UTL registers --BenH.
- */
- if (ppc4xx_pciex_hwops->setup_utl)
- ppc4xx_pciex_hwops->setup_utl(port);
-
- /*
- * Check for VC0 active or PLL Locked and assert RDY.
- */
- if (port->sdr_base) {
- if (of_device_is_compatible(port->node,
- "ibm,plb-pciex-460sx")){
- if (port->link && ppc4xx_pciex_wait_on_sdr(port,
- PESDRn_RCSSTS,
- 1 << 12, 1 << 12, 5000)) {
- printk(KERN_INFO "PCIE%d: PLL not locked\n",
- port->index);
- port->link = 0;
- }
- } else if (port->link &&
- ppc4xx_pciex_wait_on_sdr(port, PESDRn_RCSSTS,
- 1 << 16, 1 << 16, 5000)) {
- printk(KERN_INFO "PCIE%d: VC0 not active\n",
- port->index);
- port->link = 0;
- }
-
- dcri_clrset(SDR0, port->sdr_base + PESDRn_RCSSET, 0, 1 << 20);
- }
-
- msleep(100);
-
- return 0;
-}
-
-static int ppc4xx_pciex_validate_bdf(struct ppc4xx_pciex_port *port,
- struct pci_bus *bus,
- unsigned int devfn)
-{
- static int message;
-
- /* Endpoint can not generate upstream(remote) config cycles */
- if (port->endpoint && bus->number != port->hose->first_busno)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- /* Check we are within the mapped range */
- if (bus->number > port->hose->last_busno) {
- if (!message) {
- printk(KERN_WARNING "Warning! Probing bus %u"
- " out of range !\n", bus->number);
- message++;
- }
- return PCIBIOS_DEVICE_NOT_FOUND;
- }
-
- /* The root complex has only one device / function */
- if (bus->number == port->hose->first_busno && devfn != 0)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- /* The other side of the RC has only one device as well */
- if (bus->number == (port->hose->first_busno + 1) &&
- PCI_SLOT(devfn) != 0)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- /* Check if we have a link */
- if ((bus->number != port->hose->first_busno) && !port->link)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- return 0;
-}
-
-static void __iomem *ppc4xx_pciex_get_config_base(struct ppc4xx_pciex_port *port,
- struct pci_bus *bus,
- unsigned int devfn)
-{
- int relbus;
-
- /* Remove the casts when we finally remove the stupid volatile
- * in struct pci_controller
- */
- if (bus->number == port->hose->first_busno)
- return (void __iomem *)port->hose->cfg_addr;
-
- relbus = bus->number - (port->hose->first_busno + 1);
- return (void __iomem *)port->hose->cfg_data +
- ((relbus << 20) | (devfn << 12));
-}
-
-static int ppc4xx_pciex_read_config(struct pci_bus *bus, unsigned int devfn,
- int offset, int len, u32 *val)
-{
- struct pci_controller *hose = pci_bus_to_host(bus);
- struct ppc4xx_pciex_port *port =
- &ppc4xx_pciex_ports[hose->indirect_type];
- void __iomem *addr;
- u32 gpl_cfg;
-
- BUG_ON(hose != port->hose);
-
- if (ppc4xx_pciex_validate_bdf(port, bus, devfn) != 0)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- addr = ppc4xx_pciex_get_config_base(port, bus, devfn);
-
- /*
- * Reading from configuration space of non-existing device can
- * generate transaction errors. For the read duration we suppress
- * assertion of machine check exceptions to avoid those.
- */
- gpl_cfg = dcr_read(port->dcrs, DCRO_PEGPL_CFG);
- dcr_write(port->dcrs, DCRO_PEGPL_CFG, gpl_cfg | GPL_DMER_MASK_DISA);
-
- /* Make sure no CRS is recorded */
- out_be32(port->utl_base + PEUTL_RCSTA, 0x00040000);
-
- switch (len) {
- case 1:
- *val = in_8((u8 *)(addr + offset));
- break;
- case 2:
- *val = in_le16((u16 *)(addr + offset));
- break;
- default:
- *val = in_le32((u32 *)(addr + offset));
- break;
- }
-
- pr_debug("pcie-config-read: bus=%3d [%3d..%3d] devfn=0x%04x"
- " offset=0x%04x len=%d, addr=0x%p val=0x%08x\n",
- bus->number, hose->first_busno, hose->last_busno,
- devfn, offset, len, addr + offset, *val);
-
- /* Check for CRS (440SPe rev B does that for us but heh ..) */
- if (in_be32(port->utl_base + PEUTL_RCSTA) & 0x00040000) {
- pr_debug("Got CRS !\n");
- if (len != 4 || offset != 0)
- return PCIBIOS_DEVICE_NOT_FOUND;
- *val = 0xffff0001;
- }
-
- dcr_write(port->dcrs, DCRO_PEGPL_CFG, gpl_cfg);
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int ppc4xx_pciex_write_config(struct pci_bus *bus, unsigned int devfn,
- int offset, int len, u32 val)
-{
- struct pci_controller *hose = pci_bus_to_host(bus);
- struct ppc4xx_pciex_port *port =
- &ppc4xx_pciex_ports[hose->indirect_type];
- void __iomem *addr;
- u32 gpl_cfg;
-
- if (ppc4xx_pciex_validate_bdf(port, bus, devfn) != 0)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- addr = ppc4xx_pciex_get_config_base(port, bus, devfn);
-
- /*
- * Reading from configuration space of non-existing device can
- * generate transaction errors. For the read duration we suppress
- * assertion of machine check exceptions to avoid those.
- */
- gpl_cfg = dcr_read(port->dcrs, DCRO_PEGPL_CFG);
- dcr_write(port->dcrs, DCRO_PEGPL_CFG, gpl_cfg | GPL_DMER_MASK_DISA);
-
- pr_debug("pcie-config-write: bus=%3d [%3d..%3d] devfn=0x%04x"
- " offset=0x%04x len=%d, addr=0x%p val=0x%08x\n",
- bus->number, hose->first_busno, hose->last_busno,
- devfn, offset, len, addr + offset, val);
-
- switch (len) {
- case 1:
- out_8((u8 *)(addr + offset), val);
- break;
- case 2:
- out_le16((u16 *)(addr + offset), val);
- break;
- default:
- out_le32((u32 *)(addr + offset), val);
- break;
- }
-
- dcr_write(port->dcrs, DCRO_PEGPL_CFG, gpl_cfg);
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops ppc4xx_pciex_pci_ops =
-{
- .read = ppc4xx_pciex_read_config,
- .write = ppc4xx_pciex_write_config,
-};
-
-static int __init ppc4xx_setup_one_pciex_POM(struct ppc4xx_pciex_port *port,
- struct pci_controller *hose,
- void __iomem *mbase,
- u64 plb_addr,
- u64 pci_addr,
- u64 size,
- unsigned int flags,
- int index)
-{
- u32 lah, lal, pciah, pcial, sa;
-
- if (!is_power_of_2(size) ||
- (index < 2 && size < 0x100000) ||
- (index == 2 && size < 0x100) ||
- (plb_addr & (size - 1)) != 0) {
- printk(KERN_WARNING "%s: Resource out of range\n",
- hose->dn->full_name);
- return -1;
- }
-
- /* Calculate register values */
- lah = RES_TO_U32_HIGH(plb_addr);
- lal = RES_TO_U32_LOW(plb_addr);
- pciah = RES_TO_U32_HIGH(pci_addr);
- pcial = RES_TO_U32_LOW(pci_addr);
- sa = (0xffffffffu << ilog2(size)) | 0x1;
-
- /* Program register values */
- switch (index) {
- case 0:
- out_le32(mbase + PECFG_POM0LAH, pciah);
- out_le32(mbase + PECFG_POM0LAL, pcial);
- dcr_write(port->dcrs, DCRO_PEGPL_OMR1BAH, lah);
- dcr_write(port->dcrs, DCRO_PEGPL_OMR1BAL, lal);
- dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKH, 0x7fffffff);
- /*Enabled and single region */
- if (of_device_is_compatible(port->node, "ibm,plb-pciex-460sx"))
- dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL,
- sa | DCRO_PEGPL_460SX_OMR1MSKL_UOT
- | DCRO_PEGPL_OMRxMSKL_VAL);
- else if (of_device_is_compatible(
- port->node, "ibm,plb-pciex-476fpe") ||
- of_device_is_compatible(
- port->node, "ibm,plb-pciex-476gtr"))
- dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL,
- sa | DCRO_PEGPL_476FPE_OMR1MSKL_UOT
- | DCRO_PEGPL_OMRxMSKL_VAL);
- else
- dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL,
- sa | DCRO_PEGPL_OMR1MSKL_UOT
- | DCRO_PEGPL_OMRxMSKL_VAL);
- break;
- case 1:
- out_le32(mbase + PECFG_POM1LAH, pciah);
- out_le32(mbase + PECFG_POM1LAL, pcial);
- dcr_write(port->dcrs, DCRO_PEGPL_OMR2BAH, lah);
- dcr_write(port->dcrs, DCRO_PEGPL_OMR2BAL, lal);
- dcr_write(port->dcrs, DCRO_PEGPL_OMR2MSKH, 0x7fffffff);
- dcr_write(port->dcrs, DCRO_PEGPL_OMR2MSKL,
- sa | DCRO_PEGPL_OMRxMSKL_VAL);
- break;
- case 2:
- out_le32(mbase + PECFG_POM2LAH, pciah);
- out_le32(mbase + PECFG_POM2LAL, pcial);
- dcr_write(port->dcrs, DCRO_PEGPL_OMR3BAH, lah);
- dcr_write(port->dcrs, DCRO_PEGPL_OMR3BAL, lal);
- dcr_write(port->dcrs, DCRO_PEGPL_OMR3MSKH, 0x7fffffff);
- /* Note that 3 here means enabled | IO space !!! */
- dcr_write(port->dcrs, DCRO_PEGPL_OMR3MSKL,
- sa | DCRO_PEGPL_OMR3MSKL_IO
- | DCRO_PEGPL_OMRxMSKL_VAL);
- break;
- }
-
- return 0;
-}
-
-static void __init ppc4xx_configure_pciex_POMs(struct ppc4xx_pciex_port *port,
- struct pci_controller *hose,
- void __iomem *mbase)
-{
- int i, j, found_isa_hole = 0;
-
- /* Setup outbound memory windows */
- for (i = j = 0; i < 3; i++) {
- struct resource *res = &hose->mem_resources[i];
- resource_size_t offset = hose->mem_offset[i];
-
- /* we only care about memory windows */
- if (!(res->flags & IORESOURCE_MEM))
- continue;
- if (j > 1) {
- printk(KERN_WARNING "%s: Too many ranges\n",
- port->node->full_name);
- break;
- }
-
- /* Configure the resource */
- if (ppc4xx_setup_one_pciex_POM(port, hose, mbase,
- res->start,
- res->start - offset,
- resource_size(res),
- res->flags,
- j) == 0) {
- j++;
-
- /* If the resource PCI address is 0 then we have our
- * ISA memory hole
- */
- if (res->start == offset)
- found_isa_hole = 1;
- }
- }
-
- /* Handle ISA memory hole if not already covered */
- if (j <= 1 && !found_isa_hole && hose->isa_mem_size)
- if (ppc4xx_setup_one_pciex_POM(port, hose, mbase,
- hose->isa_mem_phys, 0,
- hose->isa_mem_size, 0, j) == 0)
- printk(KERN_INFO "%s: Legacy ISA memory support enabled\n",
- hose->dn->full_name);
-
- /* Configure IO, always 64K starting at 0. We hard wire it to 64K !
- * Note also that it -has- to be region index 2 on this HW
- */
- if (hose->io_resource.flags & IORESOURCE_IO)
- ppc4xx_setup_one_pciex_POM(port, hose, mbase,
- hose->io_base_phys, 0,
- 0x10000, IORESOURCE_IO, 2);
-}
-
-static void __init ppc4xx_configure_pciex_PIMs(struct ppc4xx_pciex_port *port,
- struct pci_controller *hose,
- void __iomem *mbase,
- struct resource *res)
-{
- resource_size_t size = resource_size(res);
- u64 sa;
-
- if (port->endpoint) {
- resource_size_t ep_addr = 0;
- resource_size_t ep_size = 32 << 20;
-
- /* Currently we map a fixed 64MByte window to PLB address
- * 0 (SDRAM). This should probably be configurable via a dts
- * property.
- */
-
- /* Calculate window size */
- sa = (0xffffffffffffffffull << ilog2(ep_size));
-
- /* Setup BAR0 */
- out_le32(mbase + PECFG_BAR0HMPA, RES_TO_U32_HIGH(sa));
- out_le32(mbase + PECFG_BAR0LMPA, RES_TO_U32_LOW(sa) |
- PCI_BASE_ADDRESS_MEM_TYPE_64);
-
- /* Disable BAR1 & BAR2 */
- out_le32(mbase + PECFG_BAR1MPA, 0);
- out_le32(mbase + PECFG_BAR2HMPA, 0);
- out_le32(mbase + PECFG_BAR2LMPA, 0);
-
- out_le32(mbase + PECFG_PIM01SAH, RES_TO_U32_HIGH(sa));
- out_le32(mbase + PECFG_PIM01SAL, RES_TO_U32_LOW(sa));
-
- out_le32(mbase + PCI_BASE_ADDRESS_0, RES_TO_U32_LOW(ep_addr));
- out_le32(mbase + PCI_BASE_ADDRESS_1, RES_TO_U32_HIGH(ep_addr));
- } else {
- /* Calculate window size */
- sa = (0xffffffffffffffffull << ilog2(size));
- if (res->flags & IORESOURCE_PREFETCH)
- sa |= PCI_BASE_ADDRESS_MEM_PREFETCH;
-
- if (of_device_is_compatible(port->node, "ibm,plb-pciex-460sx") ||
- of_device_is_compatible(
- port->node, "ibm,plb-pciex-476fpe") ||
- of_device_is_compatible(
- port->node, "ibm,plb-pciex-476gtr"))
- sa |= PCI_BASE_ADDRESS_MEM_TYPE_64;
-
- out_le32(mbase + PECFG_BAR0HMPA, RES_TO_U32_HIGH(sa));
- out_le32(mbase + PECFG_BAR0LMPA, RES_TO_U32_LOW(sa));
-
- /* The setup of the split looks weird to me ... let's see
- * if it works
- */
- out_le32(mbase + PECFG_PIM0LAL, 0x00000000);
- out_le32(mbase + PECFG_PIM0LAH, 0x00000000);
- out_le32(mbase + PECFG_PIM1LAL, 0x00000000);
- out_le32(mbase + PECFG_PIM1LAH, 0x00000000);
- out_le32(mbase + PECFG_PIM01SAH, 0xffff0000);
- out_le32(mbase + PECFG_PIM01SAL, 0x00000000);
-
- out_le32(mbase + PCI_BASE_ADDRESS_0, RES_TO_U32_LOW(res->start));
- out_le32(mbase + PCI_BASE_ADDRESS_1, RES_TO_U32_HIGH(res->start));
- }
-
- /* Enable inbound mapping */
- out_le32(mbase + PECFG_PIMEN, 0x1);
-
- /* Enable I/O, Mem, and Busmaster cycles */
- out_le16(mbase + PCI_COMMAND,
- in_le16(mbase + PCI_COMMAND) |
- PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
-}
-
-static void __init ppc4xx_pciex_port_setup_hose(struct ppc4xx_pciex_port *port)
-{
- struct resource dma_window;
- struct pci_controller *hose = NULL;
- const int *bus_range;
- int primary = 0, busses;
- void __iomem *mbase = NULL, *cfg_data = NULL;
- const u32 *pval;
- u32 val;
-
- /* Check if primary bridge */
- if (of_get_property(port->node, "primary", NULL))
- primary = 1;
-
- /* Get bus range if any */
- bus_range = of_get_property(port->node, "bus-range", NULL);
-
- /* Allocate the host controller data structure */
- hose = pcibios_alloc_controller(port->node);
- if (!hose)
- goto fail;
-
- /* We stick the port number in "indirect_type" so the config space
- * ops can retrieve the port data structure easily
- */
- hose->indirect_type = port->index;
-
- /* Get bus range */
- hose->first_busno = bus_range ? bus_range[0] : 0x0;
- hose->last_busno = bus_range ? bus_range[1] : 0xff;
-
- /* Because of how big mapping the config space is (1M per bus), we
- * limit how many busses we support. In the long run, we could replace
- * that with something akin to kmap_atomic instead. We set aside 1 bus
- * for the host itself too.
- */
- busses = hose->last_busno - hose->first_busno; /* This is off by 1 */
- if (busses > MAX_PCIE_BUS_MAPPED) {
- busses = MAX_PCIE_BUS_MAPPED;
- hose->last_busno = hose->first_busno + busses;
- }
-
- if (!port->endpoint) {
- /* Only map the external config space in cfg_data for
- * PCIe root-complexes. External space is 1M per bus
- */
- cfg_data = ioremap(port->cfg_space.start +
- (hose->first_busno + 1) * 0x100000,
- busses * 0x100000);
- if (cfg_data == NULL) {
- printk(KERN_ERR "%s: Can't map external config space !",
- port->node->full_name);
- goto fail;
- }
- hose->cfg_data = cfg_data;
- }
-
- /* Always map the host config space in cfg_addr.
- * Internal space is 4K
- */
- mbase = ioremap(port->cfg_space.start + 0x10000000, 0x1000);
- if (mbase == NULL) {
- printk(KERN_ERR "%s: Can't map internal config space !",
- port->node->full_name);
- goto fail;
- }
- hose->cfg_addr = mbase;
-
- pr_debug("PCIE %s, bus %d..%d\n", port->node->full_name,
- hose->first_busno, hose->last_busno);
- pr_debug(" config space mapped at: root @0x%p, other @0x%p\n",
- hose->cfg_addr, hose->cfg_data);
-
- /* Setup config space */
- hose->ops = &ppc4xx_pciex_pci_ops;
- port->hose = hose;
- mbase = (void __iomem *)hose->cfg_addr;
-
- if (!port->endpoint) {
- /*
- * Set bus numbers on our root port
- */
- out_8(mbase + PCI_PRIMARY_BUS, hose->first_busno);
- out_8(mbase + PCI_SECONDARY_BUS, hose->first_busno + 1);
- out_8(mbase + PCI_SUBORDINATE_BUS, hose->last_busno);
- }
-
- /*
- * OMRs are already reset, also disable PIMs
- */
- out_le32(mbase + PECFG_PIMEN, 0);
-
- /* Parse outbound mapping resources */
- pci_process_bridge_OF_ranges(hose, port->node, primary);
-
- /* Parse inbound mapping resources */
- if (ppc4xx_parse_dma_ranges(hose, mbase, &dma_window) != 0)
- goto fail;
-
- /* Configure outbound ranges POMs */
- ppc4xx_configure_pciex_POMs(port, hose, mbase);
-
- /* Configure inbound ranges PIMs */
- ppc4xx_configure_pciex_PIMs(port, hose, mbase, &dma_window);
-
- /* The root complex doesn't show up if we don't set some vendor
- * and device IDs into it. The defaults below are the same bogus
- * one that the initial code in arch/ppc had. This can be
- * overwritten by setting the "vendor-id/device-id" properties
- * in the pciex node.
- */
-
- /* Get the (optional) vendor-/device-id from the device-tree */
- pval = of_get_property(port->node, "vendor-id", NULL);
- if (pval) {
- val = *pval;
- } else {
- if (!port->endpoint)
- val = 0xaaa0 + port->index;
- else
- val = 0xeee0 + port->index;
- }
- out_le16(mbase + 0x200, val);
-
- pval = of_get_property(port->node, "device-id", NULL);
- if (pval) {
- val = *pval;
- } else {
- if (!port->endpoint)
- val = 0xbed0 + port->index;
- else
- val = 0xfed0 + port->index;
- }
- out_le16(mbase + 0x202, val);
-
- /* Enable Bus master, memory, and io space */
- if (of_device_is_compatible(port->node, "ibm,plb-pciex-460sx"))
- out_le16(mbase + 0x204, 0x7);
-
- if (!port->endpoint) {
- /* Set Class Code to PCI-PCI bridge and Revision Id to 1 */
- out_le32(mbase + 0x208, 0x06040001);
-
- printk(KERN_INFO "PCIE%d: successfully set as root-complex\n",
- port->index);
- } else {
- /* Set Class Code to Processor/PPC */
- out_le32(mbase + 0x208, 0x0b200001);
-
- printk(KERN_INFO "PCIE%d: successfully set as endpoint\n",
- port->index);
- }
-
- return;
- fail:
- if (hose)
- pcibios_free_controller(hose);
- if (cfg_data)
- iounmap(cfg_data);
- if (mbase)
- iounmap(mbase);
-}
-
-static void __init ppc4xx_probe_pciex_bridge(struct device_node *np)
-{
- struct ppc4xx_pciex_port *port;
- const u32 *pval;
- int portno;
- unsigned int dcrs;
- const char *val;
-
- /* First, proceed to core initialization as we assume there's
- * only one PCIe core in the system
- */
- if (ppc4xx_pciex_check_core_init(np))
- return;
-
- /* Get the port number from the device-tree */
- pval = of_get_property(np, "port", NULL);
- if (pval == NULL) {
- printk(KERN_ERR "PCIE: Can't find port number for %s\n",
- np->full_name);
- return;
- }
- portno = *pval;
- if (portno >= ppc4xx_pciex_port_count) {
- printk(KERN_ERR "PCIE: port number out of range for %s\n",
- np->full_name);
- return;
- }
- port = &ppc4xx_pciex_ports[portno];
- port->index = portno;
-
- /*
- * Check if device is enabled
- */
- if (!of_device_is_available(np)) {
- printk(KERN_INFO "PCIE%d: Port disabled via device-tree\n", port->index);
- return;
- }
-
- port->node = of_node_get(np);
- if (ppc4xx_pciex_hwops->want_sdr) {
- pval = of_get_property(np, "sdr-base", NULL);
- if (pval == NULL) {
- printk(KERN_ERR "PCIE: missing sdr-base for %s\n",
- np->full_name);
- return;
- }
- port->sdr_base = *pval;
- }
-
- /* Check if device_type property is set to "pci" or "pci-endpoint".
- * Resulting from this setup this PCIe port will be configured
- * as root-complex or as endpoint.
- */
- val = of_get_property(port->node, "device_type", NULL);
- if (!strcmp(val, "pci-endpoint")) {
- port->endpoint = 1;
- } else if (!strcmp(val, "pci")) {
- port->endpoint = 0;
- } else {
- printk(KERN_ERR "PCIE: missing or incorrect device_type for %s\n",
- np->full_name);
- return;
- }
-
- /* Fetch config space registers address */
- if (of_address_to_resource(np, 0, &port->cfg_space)) {
- printk(KERN_ERR "%s: Can't get PCI-E config space !",
- np->full_name);
- return;
- }
- /* Fetch host bridge internal registers address */
- if (of_address_to_resource(np, 1, &port->utl_regs)) {
- printk(KERN_ERR "%s: Can't get UTL register base !",
- np->full_name);
- return;
- }
-
- /* Map DCRs */
- dcrs = dcr_resource_start(np, 0);
- if (dcrs == 0) {
- printk(KERN_ERR "%s: Can't get DCR register base !",
- np->full_name);
- return;
- }
- port->dcrs = dcr_map(np, dcrs, dcr_resource_len(np, 0));
-
- /* Initialize the port specific registers */
- if (ppc4xx_pciex_port_init(port)) {
- printk(KERN_WARNING "PCIE%d: Port init failed\n", port->index);
- return;
- }
-
- /* Setup the linux hose data structure */
- ppc4xx_pciex_port_setup_hose(port);
-}
-
-#endif /* CONFIG_PPC4xx_PCI_EXPRESS */
-
-static int __init ppc4xx_pci_find_bridges(void)
-{
- struct device_node *np;
-
- pci_add_flags(PCI_ENABLE_PROC_DOMAINS | PCI_COMPAT_DOMAIN_0);
-
-#ifdef CONFIG_PPC4xx_PCI_EXPRESS
- for_each_compatible_node(np, NULL, "ibm,plb-pciex")
- ppc4xx_probe_pciex_bridge(np);
-#endif
- for_each_compatible_node(np, NULL, "ibm,plb-pcix")
- ppc4xx_probe_pcix_bridge(np);
- for_each_compatible_node(np, NULL, "ibm,plb-pci")
- ppc4xx_probe_pci_bridge(np);
-
- return 0;
-}
-arch_initcall(ppc4xx_pci_find_bridges);
-
diff --git a/arch/powerpc/sysdev/ppc4xx_soc.c b/arch/powerpc/sysdev/ppc4xx_soc.c
deleted file mode 100644
index d41134d2f786..000000000000
--- a/arch/powerpc/sysdev/ppc4xx_soc.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
- * IBM/AMCC PPC4xx SoC setup code
- *
- * Copyright 2008 DENX Software Engineering, Stefan Roese <sr@denx.de>
- *
- * L2 cache routines cloned from arch/ppc/syslib/ibm440gx_common.c which is:
- * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
- * Copyright (c) 2003 - 2006 Zultys Technologies
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/stddef.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/of_irq.h>
-#include <linux/of_platform.h>
-
-#include <asm/dcr.h>
-#include <asm/dcr-regs.h>
-#include <asm/reg.h>
-
-static u32 dcrbase_l2c;
-
-/*
- * L2-cache
- */
-
-/* Issue L2C diagnostic command */
-static inline u32 l2c_diag(u32 addr)
-{
- mtdcr(dcrbase_l2c + DCRN_L2C0_ADDR, addr);
- mtdcr(dcrbase_l2c + DCRN_L2C0_CMD, L2C_CMD_DIAG);
- while (!(mfdcr(dcrbase_l2c + DCRN_L2C0_SR) & L2C_SR_CC))
- ;
-
- return mfdcr(dcrbase_l2c + DCRN_L2C0_DATA);
-}
-
-static irqreturn_t l2c_error_handler(int irq, void *dev)
-{
- u32 sr = mfdcr(dcrbase_l2c + DCRN_L2C0_SR);
-
- if (sr & L2C_SR_CPE) {
- /* Read cache trapped address */
- u32 addr = l2c_diag(0x42000000);
- printk(KERN_EMERG "L2C: Cache Parity Error, addr[16:26] = 0x%08x\n",
- addr);
- }
- if (sr & L2C_SR_TPE) {
- /* Read tag trapped address */
- u32 addr = l2c_diag(0x82000000) >> 16;
- printk(KERN_EMERG "L2C: Tag Parity Error, addr[16:26] = 0x%08x\n",
- addr);
- }
-
- /* Clear parity errors */
- if (sr & (L2C_SR_CPE | L2C_SR_TPE)){
- mtdcr(dcrbase_l2c + DCRN_L2C0_ADDR, 0);
- mtdcr(dcrbase_l2c + DCRN_L2C0_CMD, L2C_CMD_CCP | L2C_CMD_CTE);
- } else {
- printk(KERN_EMERG "L2C: LRU error\n");
- }
-
- return IRQ_HANDLED;
-}
-
-static int __init ppc4xx_l2c_probe(void)
-{
- struct device_node *np;
- u32 r;
- unsigned long flags;
- int irq;
- const u32 *dcrreg;
- u32 dcrbase_isram;
- int len;
- const u32 *prop;
- u32 l2_size;
-
- np = of_find_compatible_node(NULL, NULL, "ibm,l2-cache");
- if (!np)
- return 0;
-
- /* Get l2 cache size */
- prop = of_get_property(np, "cache-size", NULL);
- if (prop == NULL) {
- printk(KERN_ERR "%s: Can't get cache-size!\n", np->full_name);
- of_node_put(np);
- return -ENODEV;
- }
- l2_size = prop[0];
-
- /* Map DCRs */
- dcrreg = of_get_property(np, "dcr-reg", &len);
- if (!dcrreg || (len != 4 * sizeof(u32))) {
- printk(KERN_ERR "%s: Can't get DCR register base !",
- np->full_name);
- of_node_put(np);
- return -ENODEV;
- }
- dcrbase_isram = dcrreg[0];
- dcrbase_l2c = dcrreg[2];
-
- /* Get and map irq number from device tree */
- irq = irq_of_parse_and_map(np, 0);
- if (!irq) {
- printk(KERN_ERR "irq_of_parse_and_map failed\n");
- of_node_put(np);
- return -ENODEV;
- }
-
- /* Install error handler */
- if (request_irq(irq, l2c_error_handler, 0, "L2C", 0) < 0) {
- printk(KERN_ERR "Cannot install L2C error handler"
- ", cache is not enabled\n");
- of_node_put(np);
- return -ENODEV;
- }
-
- local_irq_save(flags);
- asm volatile ("sync" ::: "memory");
-
- /* Disable SRAM */
- mtdcr(dcrbase_isram + DCRN_SRAM0_DPC,
- mfdcr(dcrbase_isram + DCRN_SRAM0_DPC) & ~SRAM_DPC_ENABLE);
- mtdcr(dcrbase_isram + DCRN_SRAM0_SB0CR,
- mfdcr(dcrbase_isram + DCRN_SRAM0_SB0CR) & ~SRAM_SBCR_BU_MASK);
- mtdcr(dcrbase_isram + DCRN_SRAM0_SB1CR,
- mfdcr(dcrbase_isram + DCRN_SRAM0_SB1CR) & ~SRAM_SBCR_BU_MASK);
- mtdcr(dcrbase_isram + DCRN_SRAM0_SB2CR,
- mfdcr(dcrbase_isram + DCRN_SRAM0_SB2CR) & ~SRAM_SBCR_BU_MASK);
- mtdcr(dcrbase_isram + DCRN_SRAM0_SB3CR,
- mfdcr(dcrbase_isram + DCRN_SRAM0_SB3CR) & ~SRAM_SBCR_BU_MASK);
-
- /* Enable L2_MODE without ICU/DCU */
- r = mfdcr(dcrbase_l2c + DCRN_L2C0_CFG) &
- ~(L2C_CFG_ICU | L2C_CFG_DCU | L2C_CFG_SS_MASK);
- r |= L2C_CFG_L2M | L2C_CFG_SS_256;
- mtdcr(dcrbase_l2c + DCRN_L2C0_CFG, r);
-
- mtdcr(dcrbase_l2c + DCRN_L2C0_ADDR, 0);
-
- /* Hardware Clear Command */
- mtdcr(dcrbase_l2c + DCRN_L2C0_CMD, L2C_CMD_HCC);
- while (!(mfdcr(dcrbase_l2c + DCRN_L2C0_SR) & L2C_SR_CC))
- ;
-
- /* Clear Cache Parity and Tag Errors */
- mtdcr(dcrbase_l2c + DCRN_L2C0_CMD, L2C_CMD_CCP | L2C_CMD_CTE);
-
- /* Enable 64G snoop region starting at 0 */
- r = mfdcr(dcrbase_l2c + DCRN_L2C0_SNP0) &
- ~(L2C_SNP_BA_MASK | L2C_SNP_SSR_MASK);
- r |= L2C_SNP_SSR_32G | L2C_SNP_ESR;
- mtdcr(dcrbase_l2c + DCRN_L2C0_SNP0, r);
-
- r = mfdcr(dcrbase_l2c + DCRN_L2C0_SNP1) &
- ~(L2C_SNP_BA_MASK | L2C_SNP_SSR_MASK);
- r |= 0x80000000 | L2C_SNP_SSR_32G | L2C_SNP_ESR;
- mtdcr(dcrbase_l2c + DCRN_L2C0_SNP1, r);
-
- asm volatile ("sync" ::: "memory");
-
- /* Enable ICU/DCU ports */
- r = mfdcr(dcrbase_l2c + DCRN_L2C0_CFG);
- r &= ~(L2C_CFG_DCW_MASK | L2C_CFG_PMUX_MASK | L2C_CFG_PMIM
- | L2C_CFG_TPEI | L2C_CFG_CPEI | L2C_CFG_NAM | L2C_CFG_NBRM);
- r |= L2C_CFG_ICU | L2C_CFG_DCU | L2C_CFG_TPC | L2C_CFG_CPC | L2C_CFG_FRAN
- | L2C_CFG_CPIM | L2C_CFG_TPIM | L2C_CFG_LIM | L2C_CFG_SMCM;
-
- /* Check for 460EX/GT special handling */
- if (of_device_is_compatible(np, "ibm,l2-cache-460ex") ||
- of_device_is_compatible(np, "ibm,l2-cache-460gt"))
- r |= L2C_CFG_RDBW;
-
- mtdcr(dcrbase_l2c + DCRN_L2C0_CFG, r);
-
- asm volatile ("sync; isync" ::: "memory");
- local_irq_restore(flags);
-
- printk(KERN_INFO "%dk L2-cache enabled\n", l2_size >> 10);
-
- of_node_put(np);
- return 0;
-}
-arch_initcall(ppc4xx_l2c_probe);
-
-/*
- * Apply a system reset. Alternatively a board specific value may be
- * provided via the "reset-type" property in the cpu node.
- */
-void ppc4xx_reset_system(char *cmd)
-{
- struct device_node *np;
- u32 reset_type = DBCR0_RST_SYSTEM;
- const u32 *prop;
-
- np = of_find_node_by_type(NULL, "cpu");
- if (np) {
- prop = of_get_property(np, "reset-type", NULL);
-
- /*
- * Check if property exists and if it is in range:
- * 1 - PPC4xx core reset
- * 2 - PPC4xx chip reset
- * 3 - PPC4xx system reset (default)
- */
- if ((prop) && ((prop[0] >= 1) && (prop[0] <= 3)))
- reset_type = prop[0] << 28;
- }
-
- mtspr(SPRN_DBCR0, mfspr(SPRN_DBCR0) | reset_type);
-
- while (1)
- ; /* Just in case the reset doesn't work */
-}
diff --git a/arch/powerpc/sysdev/scom.c b/arch/powerpc/sysdev/scom.c
index 76ea32c1b664..0f6fd5d04d33 100644
--- a/arch/powerpc/sysdev/scom.c
+++ b/arch/powerpc/sysdev/scom.c
@@ -194,12 +194,13 @@ static int scom_debug_init_one(struct dentry *root, struct device_node *dn,
ent->dn = of_node_get(dn);
snprintf(ent->name, 16, "%08x", i);
- ent->path.data = (void*) dn->full_name;
- ent->path.size = strlen(dn->full_name);
+ ent->path.data = (void*)kasprintf(GFP_KERNEL, "%pOF", dn);
+ ent->path.size = strlen((char *)ent->path.data);
dir = debugfs_create_dir(ent->name, root);
if (!dir) {
of_node_put(dn);
+ kfree(ent->path.data);
kfree(ent);
return -1;
}
diff --git a/arch/powerpc/sysdev/simple_gpio.c b/arch/powerpc/sysdev/simple_gpio.c
index 6afddae2fb47..f02d4576138c 100644
--- a/arch/powerpc/sysdev/simple_gpio.c
+++ b/arch/powerpc/sysdev/simple_gpio.c
@@ -142,7 +142,6 @@ void __init simple_gpiochip_init(const char *compatible)
}
continue;
err:
- pr_err("%s: registration failed, status %d\n",
- np->full_name, ret);
+ pr_err("%pOF: registration failed, status %d\n", np, ret);
}
}
diff --git a/arch/powerpc/sysdev/tsi108_pci.c b/arch/powerpc/sysdev/tsi108_pci.c
index 5692dd569b9b..28ff1f53cefc 100644
--- a/arch/powerpc/sysdev/tsi108_pci.c
+++ b/arch/powerpc/sysdev/tsi108_pci.c
@@ -213,8 +213,8 @@ int __init tsi108_setup_pci(struct device_node *dev, u32 cfg_phys, int primary)
/* Get bus range if any */
bus_range = of_get_property(dev, "bus-range", &len);
if (bus_range == NULL || len < 2 * sizeof(int)) {
- printk(KERN_WARNING "Can't get bus-range for %s, assume"
- " bus 0\n", dev->full_name);
+ printk(KERN_WARNING "Can't get bus-range for %pOF, assume"
+ " bus 0\n", dev);
}
hose = pcibios_alloc_controller(dev);
diff --git a/arch/powerpc/sysdev/xive/Kconfig b/arch/powerpc/sysdev/xive/Kconfig
index 12ccd7373d2f..3e3e25b5e30d 100644
--- a/arch/powerpc/sysdev/xive/Kconfig
+++ b/arch/powerpc/sysdev/xive/Kconfig
@@ -9,3 +9,8 @@ config PPC_XIVE_NATIVE
default n
select PPC_XIVE
depends on PPC_POWERNV
+
+config PPC_XIVE_SPAPR
+ bool
+ default n
+ select PPC_XIVE
diff --git a/arch/powerpc/sysdev/xive/Makefile b/arch/powerpc/sysdev/xive/Makefile
index 3fab303fc169..536d6e5706e3 100644
--- a/arch/powerpc/sysdev/xive/Makefile
+++ b/arch/powerpc/sysdev/xive/Makefile
@@ -2,3 +2,4 @@ subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
obj-y += common.o
obj-$(CONFIG_PPC_XIVE_NATIVE) += native.o
+obj-$(CONFIG_PPC_XIVE_SPAPR) += spapr.o
diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c
index 8f5e3035483b..a3b8d7d1316e 100644
--- a/arch/powerpc/sysdev/xive/common.c
+++ b/arch/powerpc/sysdev/xive/common.c
@@ -40,7 +40,8 @@
#undef DEBUG_ALL
#ifdef DEBUG_ALL
-#define DBG_VERBOSE(fmt...) pr_devel(fmt)
+#define DBG_VERBOSE(fmt, ...) pr_devel("cpu %d - " fmt, \
+ smp_processor_id(), ## __VA_ARGS__)
#else
#define DBG_VERBOSE(fmt...) do { } while(0)
#endif
@@ -190,7 +191,7 @@ static u32 xive_scan_interrupts(struct xive_cpu *xc, bool just_peek)
* This is used to perform the magic loads from an ESB
* described in xive.h
*/
-static u8 xive_poke_esb(struct xive_irq_data *xd, u32 offset)
+static notrace u8 xive_esb_read(struct xive_irq_data *xd, u32 offset)
{
u64 val;
@@ -198,13 +199,28 @@ static u8 xive_poke_esb(struct xive_irq_data *xd, u32 offset)
if (xd->flags & XIVE_IRQ_FLAG_SHIFT_BUG)
offset |= offset << 4;
- val = in_be64(xd->eoi_mmio + offset);
+ if ((xd->flags & XIVE_IRQ_FLAG_H_INT_ESB) && xive_ops->esb_rw)
+ val = xive_ops->esb_rw(xd->hw_irq, offset, 0, 0);
+ else
+ val = in_be64(xd->eoi_mmio + offset);
return (u8)val;
}
+static void xive_esb_write(struct xive_irq_data *xd, u32 offset, u64 data)
+{
+ /* Handle HW errata */
+ if (xd->flags & XIVE_IRQ_FLAG_SHIFT_BUG)
+ offset |= offset << 4;
+
+ if ((xd->flags & XIVE_IRQ_FLAG_H_INT_ESB) && xive_ops->esb_rw)
+ xive_ops->esb_rw(xd->hw_irq, offset, data, 1);
+ else
+ out_be64(xd->eoi_mmio + offset, data);
+}
+
#ifdef CONFIG_XMON
-static void xive_dump_eq(const char *name, struct xive_q *q)
+static notrace void xive_dump_eq(const char *name, struct xive_q *q)
{
u32 i0, i1, idx;
@@ -218,7 +234,7 @@ static void xive_dump_eq(const char *name, struct xive_q *q)
q->toggle, i0, i1);
}
-void xmon_xive_do_dump(int cpu)
+notrace void xmon_xive_do_dump(int cpu)
{
struct xive_cpu *xc = per_cpu(xive_cpu, cpu);
@@ -227,7 +243,7 @@ void xmon_xive_do_dump(int cpu)
xive_dump_eq("IRQ", &xc->queue[xive_irq_priority]);
#ifdef CONFIG_SMP
{
- u64 val = xive_poke_esb(&xc->ipi_data, XIVE_ESB_GET);
+ u64 val = xive_esb_read(&xc->ipi_data, XIVE_ESB_GET);
xmon_printf(" IPI state: %x:%c%c\n", xc->hw_ipi,
val & XIVE_ESB_VAL_P ? 'P' : 'p',
val & XIVE_ESB_VAL_P ? 'Q' : 'q');
@@ -297,7 +313,7 @@ void xive_do_source_eoi(u32 hw_irq, struct xive_irq_data *xd)
{
/* If the XIVE supports the new "store EOI facility, use it */
if (xd->flags & XIVE_IRQ_FLAG_STORE_EOI)
- out_be64(xd->eoi_mmio + XIVE_ESB_STORE_EOI, 0);
+ xive_esb_write(xd, XIVE_ESB_STORE_EOI, 0);
else if (hw_irq && xd->flags & XIVE_IRQ_FLAG_EOI_FW) {
/*
* The FW told us to call it. This happens for some
@@ -326,10 +342,10 @@ void xive_do_source_eoi(u32 hw_irq, struct xive_irq_data *xd)
* properly.
*/
if (xd->flags & XIVE_IRQ_FLAG_LSI)
- in_be64(xd->eoi_mmio);
+ xive_esb_read(xd, XIVE_ESB_LOAD_EOI);
else {
- eoi_val = xive_poke_esb(xd, XIVE_ESB_SET_PQ_00);
- DBG_VERBOSE("eoi_val=%x\n", offset, eoi_val);
+ eoi_val = xive_esb_read(xd, XIVE_ESB_SET_PQ_00);
+ DBG_VERBOSE("eoi_val=%x\n", eoi_val);
/* Re-trigger if needed */
if ((eoi_val & XIVE_ESB_VAL_Q) && xd->trig_mmio)
@@ -383,12 +399,12 @@ static void xive_do_source_set_mask(struct xive_irq_data *xd,
* ESB accordingly on unmask.
*/
if (mask) {
- val = xive_poke_esb(xd, XIVE_ESB_SET_PQ_01);
+ val = xive_esb_read(xd, XIVE_ESB_SET_PQ_01);
xd->saved_p = !!(val & XIVE_ESB_VAL_P);
} else if (xd->saved_p)
- xive_poke_esb(xd, XIVE_ESB_SET_PQ_10);
+ xive_esb_read(xd, XIVE_ESB_SET_PQ_10);
else
- xive_poke_esb(xd, XIVE_ESB_SET_PQ_00);
+ xive_esb_read(xd, XIVE_ESB_SET_PQ_00);
}
/*
@@ -447,7 +463,7 @@ static int xive_find_target_in_mask(const struct cpumask *mask,
int cpu, first, num, i;
/* Pick up a starting point CPU in the mask based on fuzz */
- num = cpumask_weight(mask);
+ num = min_t(int, cpumask_weight(mask), nr_cpu_ids);
first = fuzz % num;
/* Locate it */
@@ -672,6 +688,10 @@ static int xive_irq_set_affinity(struct irq_data *d,
if (cpumask_any_and(cpumask, cpu_online_mask) >= nr_cpu_ids)
return -EINVAL;
+ /* Don't do anything if the interrupt isn't started */
+ if (!irqd_is_started(d))
+ return IRQ_SET_MASK_OK;
+
/*
* If existing target is already in the new mask, and is
* online then do nothing.
@@ -768,7 +788,7 @@ static int xive_irq_retrigger(struct irq_data *d)
* To perform a retrigger, we first set the PQ bits to
* 11, then perform an EOI.
*/
- xive_poke_esb(xd, XIVE_ESB_SET_PQ_11);
+ xive_esb_read(xd, XIVE_ESB_SET_PQ_11);
/*
* Note: We pass "0" to the hw_irq argument in order to
@@ -803,7 +823,7 @@ static int xive_irq_set_vcpu_affinity(struct irq_data *d, void *state)
irqd_set_forwarded_to_vcpu(d);
/* Set it to PQ=10 state to prevent further sends */
- pq = xive_poke_esb(xd, XIVE_ESB_SET_PQ_10);
+ pq = xive_esb_read(xd, XIVE_ESB_SET_PQ_10);
/* No target ? nothing to do */
if (xd->target == XIVE_INVALID_TARGET) {
@@ -832,7 +852,7 @@ static int xive_irq_set_vcpu_affinity(struct irq_data *d, void *state)
* for sure the queue slot is no longer in use.
*/
if (pq & 2) {
- pq = xive_poke_esb(xd, XIVE_ESB_SET_PQ_11);
+ pq = xive_esb_read(xd, XIVE_ESB_SET_PQ_11);
xd->saved_p = true;
/*
@@ -989,6 +1009,9 @@ static void xive_ipi_eoi(struct irq_data *d)
{
struct xive_cpu *xc = __this_cpu_read(xive_cpu);
+ DBG_VERBOSE("IPI eoi: irq=%d [0x%lx] (HW IRQ 0x%x) pending=%02x\n",
+ d->irq, irqd_to_hwirq(d), xc->hw_ipi, xc->pending_prio);
+
/* Handle possible race with unplug and drop stale IPIs */
if (!xc)
return;
@@ -1368,6 +1391,27 @@ void xive_flush_interrupt(void)
#endif /* CONFIG_SMP */
+void xive_teardown_cpu(void)
+{
+ struct xive_cpu *xc = __this_cpu_read(xive_cpu);
+ unsigned int cpu = smp_processor_id();
+
+ /* Set CPPR to 0 to disable flow of interrupts */
+ xc->cppr = 0;
+ out_8(xive_tima + xive_tima_offset + TM_CPPR, 0);
+
+ if (xive_ops->teardown_cpu)
+ xive_ops->teardown_cpu(cpu, xc);
+
+#ifdef CONFIG_SMP
+ /* Get rid of IPI */
+ xive_cleanup_cpu_ipi(cpu, xc);
+#endif
+
+ /* Disable and free the queues */
+ xive_cleanup_cpu_queues(cpu, xc);
+}
+
void xive_kexec_teardown_cpu(int secondary)
{
struct xive_cpu *xc = __this_cpu_read(xive_cpu);
@@ -1395,8 +1439,8 @@ void xive_shutdown(void)
xive_ops->shutdown();
}
-bool xive_core_init(const struct xive_ops *ops, void __iomem *area, u32 offset,
- u8 max_prio)
+bool __init xive_core_init(const struct xive_ops *ops, void __iomem *area, u32 offset,
+ u8 max_prio)
{
xive_tima = area;
xive_tima_offset = offset;
@@ -1417,13 +1461,29 @@ bool xive_core_init(const struct xive_ops *ops, void __iomem *area, u32 offset,
/* Get ready for interrupts */
xive_setup_cpu();
- pr_info("Interrupt handling intialized with %s backend\n",
+ pr_info("Interrupt handling initialized with %s backend\n",
xive_ops->name);
pr_info("Using priority %d for all interrupts\n", max_prio);
return true;
}
+__be32 *xive_queue_page_alloc(unsigned int cpu, u32 queue_shift)
+{
+ unsigned int alloc_order;
+ struct page *pages;
+ __be32 *qpage;
+
+ alloc_order = xive_alloc_order(queue_shift);
+ pages = alloc_pages_node(cpu_to_node(cpu), GFP_KERNEL, alloc_order);
+ if (!pages)
+ return ERR_PTR(-ENOMEM);
+ qpage = (__be32 *)page_address(pages);
+ memset(qpage, 0, 1 << queue_shift);
+
+ return qpage;
+}
+
static int __init xive_off(char *arg)
{
xive_cmdline_disabled = true;
diff --git a/arch/powerpc/sysdev/xive/native.c b/arch/powerpc/sysdev/xive/native.c
index ab9ecce61ee5..ebc244b08d67 100644
--- a/arch/powerpc/sysdev/xive/native.c
+++ b/arch/powerpc/sysdev/xive/native.c
@@ -82,6 +82,8 @@ int xive_native_populate_irq_data(u32 hw_irq, struct xive_irq_data *data)
return -ENOMEM;
}
+ data->hw_irq = hw_irq;
+
if (!data->trig_page)
return 0;
if (data->trig_page == data->eoi_page) {
@@ -202,17 +204,12 @@ EXPORT_SYMBOL_GPL(xive_native_disable_queue);
static int xive_native_setup_queue(unsigned int cpu, struct xive_cpu *xc, u8 prio)
{
struct xive_q *q = &xc->queue[prio];
- unsigned int alloc_order;
- struct page *pages;
__be32 *qpage;
- alloc_order = (xive_queue_shift > PAGE_SHIFT) ?
- (xive_queue_shift - PAGE_SHIFT) : 0;
- pages = alloc_pages_node(cpu_to_node(cpu), GFP_KERNEL, alloc_order);
- if (!pages)
- return -ENOMEM;
- qpage = (__be32 *)page_address(pages);
- memset(qpage, 0, 1 << xive_queue_shift);
+ qpage = xive_queue_page_alloc(cpu, xive_queue_shift);
+ if (IS_ERR(qpage))
+ return PTR_ERR(qpage);
+
return xive_native_configure_queue(get_hard_smp_processor_id(cpu),
q, prio, qpage, xive_queue_shift, false);
}
@@ -227,8 +224,7 @@ static void xive_native_cleanup_queue(unsigned int cpu, struct xive_cpu *xc, u8
* from an IPI and iounmap isn't safe
*/
__xive_native_disable_queue(get_hard_smp_processor_id(cpu), q, prio);
- alloc_order = (xive_queue_shift > PAGE_SHIFT) ?
- (xive_queue_shift - PAGE_SHIFT) : 0;
+ alloc_order = xive_alloc_order(xive_queue_shift);
free_pages((unsigned long)q->qpage, alloc_order);
q->qpage = NULL;
}
@@ -515,13 +511,13 @@ static bool xive_parse_provisioning(struct device_node *np)
static void xive_native_setup_pools(void)
{
/* Allocate a pool big enough */
- pr_debug("XIVE: Allocating VP block for pool size %d\n", nr_cpu_ids);
+ pr_debug("XIVE: Allocating VP block for pool size %u\n", nr_cpu_ids);
xive_pool_vps = xive_native_alloc_vp_block(nr_cpu_ids);
if (WARN_ON(xive_pool_vps == XIVE_INVALID_VP))
pr_err("XIVE: Failed to allocate pool VP, KVM might not function\n");
- pr_debug("XIVE: Pool VPs allocated at 0x%x for %d max CPUs\n",
+ pr_debug("XIVE: Pool VPs allocated at 0x%x for %u max CPUs\n",
xive_pool_vps, nr_cpu_ids);
}
@@ -531,7 +527,7 @@ u32 xive_native_default_eq_shift(void)
}
EXPORT_SYMBOL_GPL(xive_native_default_eq_shift);
-bool xive_native_init(void)
+bool __init xive_native_init(void)
{
struct device_node *np;
struct resource r;
@@ -551,7 +547,7 @@ bool xive_native_init(void)
pr_devel("not found !\n");
return false;
}
- pr_devel("Found %s\n", np->full_name);
+ pr_devel("Found %pOF\n", np);
/* Resource 1 is HV window */
if (of_address_to_resource(np, 1, &r)) {
@@ -633,8 +629,8 @@ u32 xive_native_alloc_vp_block(u32 max_vcpus)
if (max_vcpus > (1 << order))
order++;
- pr_info("VP block alloc, for max VCPUs %d use order %d\n",
- max_vcpus, order);
+ pr_debug("VP block alloc, for max VCPUs %d use order %d\n",
+ max_vcpus, order);
for (;;) {
rc = opal_xive_alloc_vp_block(order);
diff --git a/arch/powerpc/sysdev/xive/spapr.c b/arch/powerpc/sysdev/xive/spapr.c
new file mode 100644
index 000000000000..d9c4c9366049
--- /dev/null
+++ b/arch/powerpc/sysdev/xive/spapr.c
@@ -0,0 +1,666 @@
+/*
+ * Copyright 2016,2017 IBM Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#define pr_fmt(fmt) "xive: " fmt
+
+#include <linux/types.h>
+#include <linux/irq.h>
+#include <linux/smp.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/cpumask.h>
+#include <linux/mm.h>
+
+#include <asm/prom.h>
+#include <asm/io.h>
+#include <asm/smp.h>
+#include <asm/irq.h>
+#include <asm/errno.h>
+#include <asm/xive.h>
+#include <asm/xive-regs.h>
+#include <asm/hvcall.h>
+
+#include "xive-internal.h"
+
+static u32 xive_queue_shift;
+
+struct xive_irq_bitmap {
+ unsigned long *bitmap;
+ unsigned int base;
+ unsigned int count;
+ spinlock_t lock;
+ struct list_head list;
+};
+
+static LIST_HEAD(xive_irq_bitmaps);
+
+static int xive_irq_bitmap_add(int base, int count)
+{
+ struct xive_irq_bitmap *xibm;
+
+ xibm = kzalloc(sizeof(*xibm), GFP_ATOMIC);
+ if (!xibm)
+ return -ENOMEM;
+
+ spin_lock_init(&xibm->lock);
+ xibm->base = base;
+ xibm->count = count;
+ xibm->bitmap = kzalloc(xibm->count, GFP_KERNEL);
+ list_add(&xibm->list, &xive_irq_bitmaps);
+
+ pr_info("Using IRQ range [%x-%x]", xibm->base,
+ xibm->base + xibm->count - 1);
+ return 0;
+}
+
+static int __xive_irq_bitmap_alloc(struct xive_irq_bitmap *xibm)
+{
+ int irq;
+
+ irq = find_first_zero_bit(xibm->bitmap, xibm->count);
+ if (irq != xibm->count) {
+ set_bit(irq, xibm->bitmap);
+ irq += xibm->base;
+ } else {
+ irq = -ENOMEM;
+ }
+
+ return irq;
+}
+
+static int xive_irq_bitmap_alloc(void)
+{
+ struct xive_irq_bitmap *xibm;
+ unsigned long flags;
+ int irq = -ENOENT;
+
+ list_for_each_entry(xibm, &xive_irq_bitmaps, list) {
+ spin_lock_irqsave(&xibm->lock, flags);
+ irq = __xive_irq_bitmap_alloc(xibm);
+ spin_unlock_irqrestore(&xibm->lock, flags);
+ if (irq >= 0)
+ break;
+ }
+ return irq;
+}
+
+static void xive_irq_bitmap_free(int irq)
+{
+ unsigned long flags;
+ struct xive_irq_bitmap *xibm;
+
+ list_for_each_entry(xibm, &xive_irq_bitmaps, list) {
+ if ((irq >= xibm->base) && (irq < xibm->base + xibm->count)) {
+ spin_lock_irqsave(&xibm->lock, flags);
+ clear_bit(irq - xibm->base, xibm->bitmap);
+ spin_unlock_irqrestore(&xibm->lock, flags);
+ break;
+ }
+ }
+}
+
+static long plpar_int_get_source_info(unsigned long flags,
+ unsigned long lisn,
+ unsigned long *src_flags,
+ unsigned long *eoi_page,
+ unsigned long *trig_page,
+ unsigned long *esb_shift)
+{
+ unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+ long rc;
+
+ rc = plpar_hcall(H_INT_GET_SOURCE_INFO, retbuf, flags, lisn);
+ if (rc) {
+ pr_err("H_INT_GET_SOURCE_INFO lisn=%ld failed %ld\n", lisn, rc);
+ return rc;
+ }
+
+ *src_flags = retbuf[0];
+ *eoi_page = retbuf[1];
+ *trig_page = retbuf[2];
+ *esb_shift = retbuf[3];
+
+ pr_devel("H_INT_GET_SOURCE_INFO flags=%lx eoi=%lx trig=%lx shift=%lx\n",
+ retbuf[0], retbuf[1], retbuf[2], retbuf[3]);
+
+ return 0;
+}
+
+#define XIVE_SRC_SET_EISN (1ull << (63 - 62))
+#define XIVE_SRC_MASK (1ull << (63 - 63)) /* unused */
+
+static long plpar_int_set_source_config(unsigned long flags,
+ unsigned long lisn,
+ unsigned long target,
+ unsigned long prio,
+ unsigned long sw_irq)
+{
+ long rc;
+
+
+ pr_devel("H_INT_SET_SOURCE_CONFIG flags=%lx lisn=%lx target=%lx prio=%lx sw_irq=%lx\n",
+ flags, lisn, target, prio, sw_irq);
+
+
+ rc = plpar_hcall_norets(H_INT_SET_SOURCE_CONFIG, flags, lisn,
+ target, prio, sw_irq);
+ if (rc) {
+ pr_err("H_INT_SET_SOURCE_CONFIG lisn=%ld target=%lx prio=%lx failed %ld\n",
+ lisn, target, prio, rc);
+ return rc;
+ }
+
+ return 0;
+}
+
+static long plpar_int_get_queue_info(unsigned long flags,
+ unsigned long target,
+ unsigned long priority,
+ unsigned long *esn_page,
+ unsigned long *esn_size)
+{
+ unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+ long rc;
+
+ rc = plpar_hcall(H_INT_GET_QUEUE_INFO, retbuf, flags, target, priority);
+ if (rc) {
+ pr_err("H_INT_GET_QUEUE_INFO cpu=%ld prio=%ld failed %ld\n",
+ target, priority, rc);
+ return rc;
+ }
+
+ *esn_page = retbuf[0];
+ *esn_size = retbuf[1];
+
+ pr_devel("H_INT_GET_QUEUE_INFO page=%lx size=%lx\n",
+ retbuf[0], retbuf[1]);
+
+ return 0;
+}
+
+#define XIVE_EQ_ALWAYS_NOTIFY (1ull << (63 - 63))
+
+static long plpar_int_set_queue_config(unsigned long flags,
+ unsigned long target,
+ unsigned long priority,
+ unsigned long qpage,
+ unsigned long qsize)
+{
+ long rc;
+
+ pr_devel("H_INT_SET_QUEUE_CONFIG flags=%lx target=%lx priority=%lx qpage=%lx qsize=%lx\n",
+ flags, target, priority, qpage, qsize);
+
+ rc = plpar_hcall_norets(H_INT_SET_QUEUE_CONFIG, flags, target,
+ priority, qpage, qsize);
+ if (rc) {
+ pr_err("H_INT_SET_QUEUE_CONFIG cpu=%ld prio=%ld qpage=%lx returned %ld\n",
+ target, priority, qpage, rc);
+ return rc;
+ }
+
+ return 0;
+}
+
+static long plpar_int_sync(unsigned long flags, unsigned long lisn)
+{
+ long rc;
+
+ rc = plpar_hcall_norets(H_INT_SYNC, flags, lisn);
+ if (rc) {
+ pr_err("H_INT_SYNC lisn=%ld returned %ld\n", lisn, rc);
+ return rc;
+ }
+
+ return 0;
+}
+
+#define XIVE_ESB_FLAG_STORE (1ull << (63 - 63))
+
+static long plpar_int_esb(unsigned long flags,
+ unsigned long lisn,
+ unsigned long offset,
+ unsigned long in_data,
+ unsigned long *out_data)
+{
+ unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+ long rc;
+
+ pr_devel("H_INT_ESB flags=%lx lisn=%lx offset=%lx in=%lx\n",
+ flags, lisn, offset, in_data);
+
+ rc = plpar_hcall(H_INT_ESB, retbuf, flags, lisn, offset, in_data);
+ if (rc) {
+ pr_err("H_INT_ESB lisn=%ld offset=%ld returned %ld\n",
+ lisn, offset, rc);
+ return rc;
+ }
+
+ *out_data = retbuf[0];
+
+ return 0;
+}
+
+static u64 xive_spapr_esb_rw(u32 lisn, u32 offset, u64 data, bool write)
+{
+ unsigned long read_data;
+ long rc;
+
+ rc = plpar_int_esb(write ? XIVE_ESB_FLAG_STORE : 0,
+ lisn, offset, data, &read_data);
+ if (rc)
+ return -1;
+
+ return write ? 0 : read_data;
+}
+
+#define XIVE_SRC_H_INT_ESB (1ull << (63 - 60))
+#define XIVE_SRC_LSI (1ull << (63 - 61))
+#define XIVE_SRC_TRIGGER (1ull << (63 - 62))
+#define XIVE_SRC_STORE_EOI (1ull << (63 - 63))
+
+static int xive_spapr_populate_irq_data(u32 hw_irq, struct xive_irq_data *data)
+{
+ long rc;
+ unsigned long flags;
+ unsigned long eoi_page;
+ unsigned long trig_page;
+ unsigned long esb_shift;
+
+ memset(data, 0, sizeof(*data));
+
+ rc = plpar_int_get_source_info(0, hw_irq, &flags, &eoi_page, &trig_page,
+ &esb_shift);
+ if (rc)
+ return -EINVAL;
+
+ if (flags & XIVE_SRC_H_INT_ESB)
+ data->flags |= XIVE_IRQ_FLAG_H_INT_ESB;
+ if (flags & XIVE_SRC_STORE_EOI)
+ data->flags |= XIVE_IRQ_FLAG_STORE_EOI;
+ if (flags & XIVE_SRC_LSI)
+ data->flags |= XIVE_IRQ_FLAG_LSI;
+ data->eoi_page = eoi_page;
+ data->esb_shift = esb_shift;
+ data->trig_page = trig_page;
+
+ /*
+ * No chip-id for the sPAPR backend. This has an impact how we
+ * pick a target. See xive_pick_irq_target().
+ */
+ data->src_chip = XIVE_INVALID_CHIP_ID;
+
+ data->eoi_mmio = ioremap(data->eoi_page, 1u << data->esb_shift);
+ if (!data->eoi_mmio) {
+ pr_err("Failed to map EOI page for irq 0x%x\n", hw_irq);
+ return -ENOMEM;
+ }
+
+ data->hw_irq = hw_irq;
+
+ /* Full function page supports trigger */
+ if (flags & XIVE_SRC_TRIGGER) {
+ data->trig_mmio = data->eoi_mmio;
+ return 0;
+ }
+
+ data->trig_mmio = ioremap(data->trig_page, 1u << data->esb_shift);
+ if (!data->trig_mmio) {
+ pr_err("Failed to map trigger page for irq 0x%x\n", hw_irq);
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+static int xive_spapr_configure_irq(u32 hw_irq, u32 target, u8 prio, u32 sw_irq)
+{
+ long rc;
+
+ rc = plpar_int_set_source_config(XIVE_SRC_SET_EISN, hw_irq, target,
+ prio, sw_irq);
+
+ return rc == 0 ? 0 : -ENXIO;
+}
+
+/* This can be called multiple time to change a queue configuration */
+static int xive_spapr_configure_queue(u32 target, struct xive_q *q, u8 prio,
+ __be32 *qpage, u32 order)
+{
+ s64 rc = 0;
+ unsigned long esn_page;
+ unsigned long esn_size;
+ u64 flags, qpage_phys;
+
+ /* If there's an actual queue page, clean it */
+ if (order) {
+ if (WARN_ON(!qpage))
+ return -EINVAL;
+ qpage_phys = __pa(qpage);
+ } else {
+ qpage_phys = 0;
+ }
+
+ /* Initialize the rest of the fields */
+ q->msk = order ? ((1u << (order - 2)) - 1) : 0;
+ q->idx = 0;
+ q->toggle = 0;
+
+ rc = plpar_int_get_queue_info(0, target, prio, &esn_page, &esn_size);
+ if (rc) {
+ pr_err("Error %lld getting queue info prio %d\n", rc, prio);
+ rc = -EIO;
+ goto fail;
+ }
+
+ /* TODO: add support for the notification page */
+ q->eoi_phys = esn_page;
+
+ /* Default is to always notify */
+ flags = XIVE_EQ_ALWAYS_NOTIFY;
+
+ /* Configure and enable the queue in HW */
+ rc = plpar_int_set_queue_config(flags, target, prio, qpage_phys, order);
+ if (rc) {
+ pr_err("Error %lld setting queue for prio %d\n", rc, prio);
+ rc = -EIO;
+ } else {
+ q->qpage = qpage;
+ }
+fail:
+ return rc;
+}
+
+static int xive_spapr_setup_queue(unsigned int cpu, struct xive_cpu *xc,
+ u8 prio)
+{
+ struct xive_q *q = &xc->queue[prio];
+ __be32 *qpage;
+
+ qpage = xive_queue_page_alloc(cpu, xive_queue_shift);
+ if (IS_ERR(qpage))
+ return PTR_ERR(qpage);
+
+ return xive_spapr_configure_queue(cpu, q, prio, qpage,
+ xive_queue_shift);
+}
+
+static void xive_spapr_cleanup_queue(unsigned int cpu, struct xive_cpu *xc,
+ u8 prio)
+{
+ struct xive_q *q = &xc->queue[prio];
+ unsigned int alloc_order;
+ long rc;
+
+ rc = plpar_int_set_queue_config(0, cpu, prio, 0, 0);
+ if (rc)
+ pr_err("Error %ld setting queue for prio %d\n", rc, prio);
+
+ alloc_order = xive_alloc_order(xive_queue_shift);
+ free_pages((unsigned long)q->qpage, alloc_order);
+ q->qpage = NULL;
+}
+
+static bool xive_spapr_match(struct device_node *node)
+{
+ /* Ignore cascaded controllers for the moment */
+ return 1;
+}
+
+#ifdef CONFIG_SMP
+static int xive_spapr_get_ipi(unsigned int cpu, struct xive_cpu *xc)
+{
+ int irq = xive_irq_bitmap_alloc();
+
+ if (irq < 0) {
+ pr_err("Failed to allocate IPI on CPU %d\n", cpu);
+ return -ENXIO;
+ }
+
+ xc->hw_ipi = irq;
+ return 0;
+}
+
+static void xive_spapr_put_ipi(unsigned int cpu, struct xive_cpu *xc)
+{
+ if (!xc->hw_ipi)
+ return;
+
+ xive_irq_bitmap_free(xc->hw_ipi);
+ xc->hw_ipi = 0;
+}
+#endif /* CONFIG_SMP */
+
+static void xive_spapr_shutdown(void)
+{
+ long rc;
+
+ rc = plpar_hcall_norets(H_INT_RESET, 0);
+ if (rc)
+ pr_err("H_INT_RESET failed %ld\n", rc);
+}
+
+/*
+ * Perform an "ack" cycle on the current thread. Grab the pending
+ * active priorities and update the CPPR to the most favored one.
+ */
+static void xive_spapr_update_pending(struct xive_cpu *xc)
+{
+ u8 nsr, cppr;
+ u16 ack;
+
+ /*
+ * Perform the "Acknowledge O/S to Register" cycle.
+ *
+ * Let's speedup the access to the TIMA using the raw I/O
+ * accessor as we don't need the synchronisation routine of
+ * the higher level ones
+ */
+ ack = be16_to_cpu(__raw_readw(xive_tima + TM_SPC_ACK_OS_REG));
+
+ /* Synchronize subsequent queue accesses */
+ mb();
+
+ /*
+ * Grab the CPPR and the "NSR" field which indicates the source
+ * of the interrupt (if any)
+ */
+ cppr = ack & 0xff;
+ nsr = ack >> 8;
+
+ if (nsr & TM_QW1_NSR_EO) {
+ if (cppr == 0xff)
+ return;
+ /* Mark the priority pending */
+ xc->pending_prio |= 1 << cppr;
+
+ /*
+ * A new interrupt should never have a CPPR less favored
+ * than our current one.
+ */
+ if (cppr >= xc->cppr)
+ pr_err("CPU %d odd ack CPPR, got %d at %d\n",
+ smp_processor_id(), cppr, xc->cppr);
+
+ /* Update our idea of what the CPPR is */
+ xc->cppr = cppr;
+ }
+}
+
+static void xive_spapr_eoi(u32 hw_irq)
+{
+ /* Not used */;
+}
+
+static void xive_spapr_setup_cpu(unsigned int cpu, struct xive_cpu *xc)
+{
+ /* Only some debug on the TIMA settings */
+ pr_debug("(HW value: %08x %08x %08x)\n",
+ in_be32(xive_tima + TM_QW1_OS + TM_WORD0),
+ in_be32(xive_tima + TM_QW1_OS + TM_WORD1),
+ in_be32(xive_tima + TM_QW1_OS + TM_WORD2));
+}
+
+static void xive_spapr_teardown_cpu(unsigned int cpu, struct xive_cpu *xc)
+{
+ /* Nothing to do */;
+}
+
+static void xive_spapr_sync_source(u32 hw_irq)
+{
+ /* Specs are unclear on what this is doing */
+ plpar_int_sync(0, hw_irq);
+}
+
+static const struct xive_ops xive_spapr_ops = {
+ .populate_irq_data = xive_spapr_populate_irq_data,
+ .configure_irq = xive_spapr_configure_irq,
+ .setup_queue = xive_spapr_setup_queue,
+ .cleanup_queue = xive_spapr_cleanup_queue,
+ .match = xive_spapr_match,
+ .shutdown = xive_spapr_shutdown,
+ .update_pending = xive_spapr_update_pending,
+ .eoi = xive_spapr_eoi,
+ .setup_cpu = xive_spapr_setup_cpu,
+ .teardown_cpu = xive_spapr_teardown_cpu,
+ .sync_source = xive_spapr_sync_source,
+ .esb_rw = xive_spapr_esb_rw,
+#ifdef CONFIG_SMP
+ .get_ipi = xive_spapr_get_ipi,
+ .put_ipi = xive_spapr_put_ipi,
+#endif /* CONFIG_SMP */
+ .name = "spapr",
+};
+
+/*
+ * get max priority from "/ibm,plat-res-int-priorities"
+ */
+static bool xive_get_max_prio(u8 *max_prio)
+{
+ struct device_node *rootdn;
+ const __be32 *reg;
+ u32 len;
+ int prio, found;
+
+ rootdn = of_find_node_by_path("/");
+ if (!rootdn) {
+ pr_err("not root node found !\n");
+ return false;
+ }
+
+ reg = of_get_property(rootdn, "ibm,plat-res-int-priorities", &len);
+ if (!reg) {
+ pr_err("Failed to read 'ibm,plat-res-int-priorities' property\n");
+ return false;
+ }
+
+ if (len % (2 * sizeof(u32)) != 0) {
+ pr_err("invalid 'ibm,plat-res-int-priorities' property\n");
+ return false;
+ }
+
+ /* HW supports priorities in the range [0-7] and 0xFF is a
+ * wildcard priority used to mask. We scan the ranges reserved
+ * by the hypervisor to find the lowest priority we can use.
+ */
+ found = 0xFF;
+ for (prio = 0; prio < 8; prio++) {
+ int reserved = 0;
+ int i;
+
+ for (i = 0; i < len / (2 * sizeof(u32)); i++) {
+ int base = be32_to_cpu(reg[2 * i]);
+ int range = be32_to_cpu(reg[2 * i + 1]);
+
+ if (prio >= base && prio < base + range)
+ reserved++;
+ }
+
+ if (!reserved)
+ found = prio;
+ }
+
+ if (found == 0xFF) {
+ pr_err("no valid priority found in 'ibm,plat-res-int-priorities'\n");
+ return false;
+ }
+
+ *max_prio = found;
+ return true;
+}
+
+bool __init xive_spapr_init(void)
+{
+ struct device_node *np;
+ struct resource r;
+ void __iomem *tima;
+ struct property *prop;
+ u8 max_prio;
+ u32 val;
+ u32 len;
+ const __be32 *reg;
+ int i;
+
+ if (xive_cmdline_disabled)
+ return false;
+
+ pr_devel("%s()\n", __func__);
+ np = of_find_compatible_node(NULL, NULL, "ibm,power-ivpe");
+ if (!np) {
+ pr_devel("not found !\n");
+ return false;
+ }
+ pr_devel("Found %s\n", np->full_name);
+
+ /* Resource 1 is the OS ring TIMA */
+ if (of_address_to_resource(np, 1, &r)) {
+ pr_err("Failed to get thread mgmnt area resource\n");
+ return false;
+ }
+ tima = ioremap(r.start, resource_size(&r));
+ if (!tima) {
+ pr_err("Failed to map thread mgmnt area\n");
+ return false;
+ }
+
+ if (!xive_get_max_prio(&max_prio))
+ return false;
+
+ /* Feed the IRQ number allocator with the ranges given in the DT */
+ reg = of_get_property(np, "ibm,xive-lisn-ranges", &len);
+ if (!reg) {
+ pr_err("Failed to read 'ibm,xive-lisn-ranges' property\n");
+ return false;
+ }
+
+ if (len % (2 * sizeof(u32)) != 0) {
+ pr_err("invalid 'ibm,xive-lisn-ranges' property\n");
+ return false;
+ }
+
+ for (i = 0; i < len / (2 * sizeof(u32)); i++, reg += 2)
+ xive_irq_bitmap_add(be32_to_cpu(reg[0]),
+ be32_to_cpu(reg[1]));
+
+ /* Iterate the EQ sizes and pick one */
+ of_property_for_each_u32(np, "ibm,xive-eq-sizes", prop, reg, val) {
+ xive_queue_shift = val;
+ if (val == PAGE_SHIFT)
+ break;
+ }
+
+ /* Initialize XIVE core with our backend */
+ if (!xive_core_init(&xive_spapr_ops, tima, TM_QW1_OS, max_prio))
+ return false;
+
+ pr_info("Using %dkB queues\n", 1 << (xive_queue_shift - 10));
+ return true;
+}
diff --git a/arch/powerpc/sysdev/xive/xive-internal.h b/arch/powerpc/sysdev/xive/xive-internal.h
index d07ef2d29caf..f34abed0c05f 100644
--- a/arch/powerpc/sysdev/xive/xive-internal.h
+++ b/arch/powerpc/sysdev/xive/xive-internal.h
@@ -47,6 +47,7 @@ struct xive_ops {
void (*update_pending)(struct xive_cpu *xc);
void (*eoi)(u32 hw_irq);
void (*sync_source)(u32 hw_irq);
+ u64 (*esb_rw)(u32 hw_irq, u32 offset, u64 data, bool write);
#ifdef CONFIG_SMP
int (*get_ipi)(unsigned int cpu, struct xive_cpu *xc);
void (*put_ipi)(unsigned int cpu, struct xive_cpu *xc);
@@ -56,6 +57,12 @@ struct xive_ops {
bool xive_core_init(const struct xive_ops *ops, void __iomem *area, u32 offset,
u8 max_prio);
+__be32 *xive_queue_page_alloc(unsigned int cpu, u32 queue_shift);
+
+static inline u32 xive_alloc_order(u32 queue_shift)
+{
+ return (queue_shift > PAGE_SHIFT) ? (queue_shift - PAGE_SHIFT) : 0;
+}
extern bool xive_cmdline_disabled;
diff --git a/arch/powerpc/tools/head_check.sh b/arch/powerpc/tools/head_check.sh
new file mode 100644
index 000000000000..ad9e57209aa4
--- /dev/null
+++ b/arch/powerpc/tools/head_check.sh
@@ -0,0 +1,78 @@
+# Copyright © 2016 IBM Corporation
+
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version
+# 2 of the License, or (at your option) any later version.
+
+# This script checks the head of a vmlinux for linker stubs that
+# break our placement of fixed-location code for 64-bit.
+
+# based on relocs_check.pl
+# Copyright © 2009 IBM Corporation
+
+# NOTE!
+#
+# If the build dies here, it's likely code in head_64.S/exception-64*.S or
+# nearby, is branching to labels it can't reach directly, which results in the
+# linker inserting branch stubs. This can move code around in ways that break
+# the fixed section calculations (head-64.h). To debug this, disassemble the
+# vmlinux and look for branch stubs (long_branch, plt_branch, etc.) in the
+# fixed section region (0 - 0x8000ish). Check what code is calling those stubs,
+# and perhaps change so a direct branch can reach.
+#
+# A ".linker_stub_catch" section is used to catch some stubs generated by
+# early .text code, which tend to get placed at the start of the section.
+# If there are too many such stubs, they can overflow this section. Expanding
+# it may help (or reducing the number of stub branches).
+#
+# Linker stubs use the TOC pointer, so even if fixed section code could
+# tolerate them being inserted into head code, they can't be allowed in low
+# level entry code (boot, interrupt vectors, etc) until r2 is set up. This
+# could cause the kernel to die in early boot.
+
+# Turn this on if you want more debug output:
+# set -x
+
+if [ $# -lt 2 ]; then
+ echo "$0 [path to nm] [path to vmlinux]" 1>&2
+ exit 1
+fi
+
+# Have Kbuild supply the path to nm so we handle cross compilation.
+nm="$1"
+vmlinux="$2"
+
+# gcc-4.6-era toolchain make _stext an A (absolute) symbol rather than T
+$nm "$vmlinux" | grep -e " [TA] _stext$" -e " t start_first_256B$" -e " a text_start$" -e " t start_text$" -m4 > .tmp_symbols.txt
+
+
+vma=$(cat .tmp_symbols.txt | grep -e " [TA] _stext$" | cut -d' ' -f1)
+
+expected_start_head_addr=$vma
+
+start_head_addr=$(cat .tmp_symbols.txt | grep " t start_first_256B$" | cut -d' ' -f1)
+
+if [ "$start_head_addr" != "$expected_start_head_addr" ]; then
+ echo "ERROR: head code starts at $start_head_addr, should be $expected_start_head_addr"
+ echo "ERROR: try to enable LD_HEAD_STUB_CATCH config option"
+ echo "ERROR: see comments in arch/powerpc/tools/head_check.sh"
+
+ exit 1
+fi
+
+top_vma=$(echo $vma | cut -d'0' -f1)
+
+expected_start_text_addr=$(cat .tmp_symbols.txt | grep " a text_start$" | cut -d' ' -f1 | sed "s/^0/$top_vma/")
+
+start_text_addr=$(cat .tmp_symbols.txt | grep " t start_text$" | cut -d' ' -f1)
+
+if [ "$start_text_addr" != "$expected_start_text_addr" ]; then
+ echo "ERROR: start_text address is $start_text_addr, should be $expected_start_text_addr"
+ echo "ERROR: try to enable LD_HEAD_STUB_CATCH config option"
+ echo "ERROR: see comments in arch/powerpc/tools/head_check.sh"
+
+ exit 1
+fi
+
+rm -f .tmp_symbols.txt
diff --git a/arch/powerpc/tools/unrel_branch_check.sh b/arch/powerpc/tools/unrel_branch_check.sh
new file mode 100755
index 000000000000..1e972df3107e
--- /dev/null
+++ b/arch/powerpc/tools/unrel_branch_check.sh
@@ -0,0 +1,57 @@
+# Copyright © 2016 IBM Corporation
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version
+# 2 of the License, or (at your option) any later version.
+#
+# This script checks the relocations of a vmlinux for "suspicious"
+# branches from unrelocated code (head_64.S code).
+
+# Turn this on if you want more debug output:
+# set -x
+
+# Have Kbuild supply the path to objdump so we handle cross compilation.
+objdump="$1"
+vmlinux="$2"
+
+#__end_interrupts should be located within the first 64K
+
+end_intr=0x$(
+"$objdump" -R "$vmlinux" -d --start-address=0xc000000000000000 \
+ --stop-address=0xc000000000010000 |
+grep '\<__end_interrupts>:' |
+awk '{print $1}'
+)
+
+BRANCHES=$(
+"$objdump" -R "$vmlinux" -D --start-address=0xc000000000000000 \
+ --stop-address=${end_intr} |
+grep -e "^c[0-9a-f]*:[[:space:]]*\([0-9a-f][0-9a-f][[:space:]]\)\{4\}[[:space:]]*b" |
+grep -v '\<__start_initialization_multiplatform>' |
+grep -v -e 'b.\?.\?ctr' |
+grep -v -e 'b.\?.\?lr' |
+sed 's/://' |
+awk '{ print $1 ":" $6 ":0x" $7 ":" $8 " "}'
+)
+
+for tuple in $BRANCHES
+do
+ from=`echo $tuple | cut -d':' -f1`
+ branch=`echo $tuple | cut -d':' -f2`
+ to=`echo $tuple | cut -d':' -f3 | sed 's/cr[0-7],//'`
+ sym=`echo $tuple | cut -d':' -f4`
+
+ if (( $to > $end_intr ))
+ then
+ if [ -z "$bad_branches" ]; then
+ echo "WARNING: Unrelocated relative branches"
+ bad_branches="yes"
+ fi
+ echo "$from $branch-> $to $sym"
+ fi
+done
+
+if [ -z "$bad_branches" ]; then
+ exit 0
+fi
diff --git a/arch/powerpc/xmon/Makefile b/arch/powerpc/xmon/Makefile
index 0b2f771593eb..1dd88315cff4 100644
--- a/arch/powerpc/xmon/Makefile
+++ b/arch/powerpc/xmon/Makefile
@@ -5,6 +5,10 @@ subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
GCOV_PROFILE := n
UBSAN_SANITIZE := n
+# Disable ftrace for the entire directory
+ORIG_CFLAGS := $(KBUILD_CFLAGS)
+KBUILD_CFLAGS = $(subst -mno-sched-epilog,,$(subst $(CC_FLAGS_FTRACE),,$(ORIG_CFLAGS)))
+
ccflags-$(CONFIG_PPC64) := $(NO_MINIMAL_TOC)
obj-y += xmon.o nonstdio.o spr_access.o
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index f11f65634aab..33351c6704b1 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -53,6 +53,7 @@
#include <asm/xive.h>
#include <asm/opal.h>
#include <asm/firmware.h>
+#include <asm/code-patching.h>
#ifdef CONFIG_PPC64
#include <asm/hvcall.h>
@@ -88,6 +89,7 @@ static unsigned long nidump = 16;
static unsigned long ncsum = 4096;
static int termch;
static char tmpstr[128];
+static int tracing_enabled;
static long bus_error_jmp[JMP_BUF_LEN];
static int catch_memory_errors;
@@ -233,6 +235,7 @@ Commands:\n\
"\
dr dump stream of raw bytes\n\
dt dump the tracing buffers (uses printk)\n\
+ dtc dump the tracing buffers for current CPU (uses printk)\n\
"
#ifdef CONFIG_PPC_POWERNV
" dx# dump xive on CPU #\n\
@@ -460,6 +463,9 @@ static int xmon_core(struct pt_regs *regs, int fromipi)
local_irq_save(flags);
hard_irq_disable();
+ tracing_enabled = tracing_is_on();
+ tracing_off();
+
bp = in_breakpoint_table(regs->nip, &offset);
if (bp != NULL) {
regs->nip = bp->address + offset;
@@ -837,7 +843,8 @@ static void insert_bpts(void)
store_inst(&bp->instr[0]);
if (bp->enabled & BP_CIABR)
continue;
- if (mwrite(bp->address, &bpinstr, 4) != 4) {
+ if (patch_instruction((unsigned int *)bp->address,
+ bpinstr) != 0) {
printf("Couldn't write instruction at %lx, "
"disabling breakpoint there\n", bp->address);
bp->enabled &= ~BP_TRAP;
@@ -874,7 +881,8 @@ static void remove_bpts(void)
continue;
if (mread(bp->address, &instr, 4) == 4
&& instr == bpinstr
- && mwrite(bp->address, &bp->instr, 4) != 4)
+ && patch_instruction(
+ (unsigned int *)bp->address, bp->instr[0]) != 0)
printf("Couldn't remove breakpoint at %lx\n",
bp->address);
else
@@ -978,6 +986,8 @@ cmds(struct pt_regs *excp)
break;
case 'x':
case 'X':
+ if (tracing_enabled)
+ tracing_on();
return cmd;
case EOF:
printf(" <no input ...>\n");
@@ -1242,14 +1252,14 @@ bpt_cmds(void)
{
int cmd;
unsigned long a;
- int mode, i;
+ int i;
struct bpt *bp;
- const char badaddr[] = "Only kernel addresses are permitted "
- "for breakpoints\n";
cmd = inchar();
switch (cmd) {
-#ifndef CONFIG_8xx
+#ifndef CONFIG_PPC_8xx
+ static const char badaddr[] = "Only kernel addresses are permitted for breakpoints\n";
+ int mode;
case 'd': /* bd - hardware data breakpoint */
mode = 7;
cmd = inchar();
@@ -1729,23 +1739,25 @@ static void dump_206_sprs(void)
/* Actually some of these pre-date 2.06, but whatevs */
- printf("srr0 = %.16x srr1 = %.16x dsisr = %.8x\n",
+ printf("srr0 = %.16lx srr1 = %.16lx dsisr = %.8x\n",
mfspr(SPRN_SRR0), mfspr(SPRN_SRR1), mfspr(SPRN_DSISR));
- printf("dscr = %.16x ppr = %.16x pir = %.8x\n",
+ printf("dscr = %.16lx ppr = %.16lx pir = %.8x\n",
mfspr(SPRN_DSCR), mfspr(SPRN_PPR), mfspr(SPRN_PIR));
+ printf("amr = %.16lx uamor = %.16lx\n",
+ mfspr(SPRN_AMR), mfspr(SPRN_UAMOR));
if (!(mfmsr() & MSR_HV))
return;
- printf("sdr1 = %.16x hdar = %.16x hdsisr = %.8x\n",
+ printf("sdr1 = %.16lx hdar = %.16lx hdsisr = %.8x\n",
mfspr(SPRN_SDR1), mfspr(SPRN_HDAR), mfspr(SPRN_HDSISR));
- printf("hsrr0 = %.16x hsrr1 = %.16x hdec = %.8x\n",
+ printf("hsrr0 = %.16lx hsrr1 = %.16lx hdec = %.16lx\n",
mfspr(SPRN_HSRR0), mfspr(SPRN_HSRR1), mfspr(SPRN_HDEC));
- printf("lpcr = %.16x pcr = %.16x lpidr = %.8x\n",
+ printf("lpcr = %.16lx pcr = %.16lx lpidr = %.8x\n",
mfspr(SPRN_LPCR), mfspr(SPRN_PCR), mfspr(SPRN_LPID));
- printf("hsprg0 = %.16x hsprg1 = %.16x\n",
- mfspr(SPRN_HSPRG0), mfspr(SPRN_HSPRG1));
- printf("dabr = %.16x dabrx = %.16x\n",
+ printf("hsprg0 = %.16lx hsprg1 = %.16lx amor = %.16lx\n",
+ mfspr(SPRN_HSPRG0), mfspr(SPRN_HSPRG1), mfspr(SPRN_AMOR));
+ printf("dabr = %.16lx dabrx = %.16lx\n",
mfspr(SPRN_DABR), mfspr(SPRN_DABRX));
#endif
}
@@ -1758,42 +1770,65 @@ static void dump_207_sprs(void)
if (!cpu_has_feature(CPU_FTR_ARCH_207S))
return;
- printf("dpdes = %.16x tir = %.16x cir = %.8x\n",
+ printf("dpdes = %.16lx tir = %.16lx cir = %.8x\n",
mfspr(SPRN_DPDES), mfspr(SPRN_TIR), mfspr(SPRN_CIR));
- printf("fscr = %.16x tar = %.16x pspb = %.8x\n",
+ printf("fscr = %.16lx tar = %.16lx pspb = %.8x\n",
mfspr(SPRN_FSCR), mfspr(SPRN_TAR), mfspr(SPRN_PSPB));
msr = mfmsr();
if (msr & MSR_TM) {
/* Only if TM has been enabled in the kernel */
- printf("tfhar = %.16x tfiar = %.16x texasr = %.16x\n",
+ printf("tfhar = %.16lx tfiar = %.16lx texasr = %.16lx\n",
mfspr(SPRN_TFHAR), mfspr(SPRN_TFIAR),
mfspr(SPRN_TEXASR));
}
- printf("mmcr0 = %.16x mmcr1 = %.16x mmcr2 = %.16x\n",
+ printf("mmcr0 = %.16lx mmcr1 = %.16lx mmcr2 = %.16lx\n",
mfspr(SPRN_MMCR0), mfspr(SPRN_MMCR1), mfspr(SPRN_MMCR2));
printf("pmc1 = %.8x pmc2 = %.8x pmc3 = %.8x pmc4 = %.8x\n",
mfspr(SPRN_PMC1), mfspr(SPRN_PMC2),
mfspr(SPRN_PMC3), mfspr(SPRN_PMC4));
- printf("mmcra = %.16x siar = %.16x pmc5 = %.8x\n",
+ printf("mmcra = %.16lx siar = %.16lx pmc5 = %.8x\n",
mfspr(SPRN_MMCRA), mfspr(SPRN_SIAR), mfspr(SPRN_PMC5));
- printf("sdar = %.16x sier = %.16x pmc6 = %.8x\n",
+ printf("sdar = %.16lx sier = %.16lx pmc6 = %.8x\n",
mfspr(SPRN_SDAR), mfspr(SPRN_SIER), mfspr(SPRN_PMC6));
- printf("ebbhr = %.16x ebbrr = %.16x bescr = %.16x\n",
+ printf("ebbhr = %.16lx ebbrr = %.16lx bescr = %.16lx\n",
mfspr(SPRN_EBBHR), mfspr(SPRN_EBBRR), mfspr(SPRN_BESCR));
+ printf("iamr = %.16lx\n", mfspr(SPRN_IAMR));
if (!(msr & MSR_HV))
return;
- printf("hfscr = %.16x dhdes = %.16x rpr = %.16x\n",
+ printf("hfscr = %.16lx dhdes = %.16lx rpr = %.16lx\n",
mfspr(SPRN_HFSCR), mfspr(SPRN_DHDES), mfspr(SPRN_RPR));
- printf("dawr = %.16x dawrx = %.16x ciabr = %.16x\n",
+ printf("dawr = %.16lx dawrx = %.16lx ciabr = %.16lx\n",
mfspr(SPRN_DAWR), mfspr(SPRN_DAWRX), mfspr(SPRN_CIABR));
#endif
}
+static void dump_300_sprs(void)
+{
+#ifdef CONFIG_PPC64
+ bool hv = mfmsr() & MSR_HV;
+
+ if (!cpu_has_feature(CPU_FTR_ARCH_300))
+ return;
+
+ printf("pidr = %.16lx tidr = %.16lx\n",
+ mfspr(SPRN_PID), mfspr(SPRN_TIDR));
+ printf("asdr = %.16lx psscr = %.16lx\n",
+ mfspr(SPRN_ASDR), hv ? mfspr(SPRN_PSSCR)
+ : mfspr(SPRN_PSSCR_PR));
+
+ if (!hv)
+ return;
+
+ printf("ptcr = %.16lx\n",
+ mfspr(SPRN_PTCR));
+#endif
+}
+
static void dump_one_spr(int spr, bool show_unimplemented)
{
unsigned long val;
@@ -1847,6 +1882,7 @@ static void super_regs(void)
dump_206_sprs();
dump_207_sprs();
+ dump_300_sprs();
return;
}
@@ -2228,6 +2264,17 @@ static void xmon_rawdump (unsigned long adrs, long ndump)
printf("\n");
}
+static void dump_tracing(void)
+{
+ int c;
+
+ c = inchar();
+ if (c == 'c')
+ ftrace_dump(DUMP_ORIG);
+ else
+ ftrace_dump(DUMP_ALL);
+}
+
#ifdef CONFIG_PPC64
static void dump_one_paca(int cpu)
{
@@ -2504,6 +2551,11 @@ dump(void)
}
#endif
+ if (c == 't') {
+ dump_tracing();
+ return;
+ }
+
if (c == '\n')
termch = c;
@@ -2522,9 +2574,6 @@ dump(void)
dump_log_buf();
} else if (c == 'o') {
dump_opal_msglog();
- } else if (c == 't') {
- ftrace_dump(DUMP_ALL);
- tracing_on();
} else if (c == 'r') {
scanhex(&ndump);
if (ndump == 0)
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 6967addc6a89..48af970320cb 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -64,10 +64,11 @@ config ARCH_SUPPORTS_UPROBES
config S390
def_bool y
+ select ARCH_BINFMT_ELF_STATE
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_ELF_RANDOMIZE
select ARCH_HAS_GCOV_PROFILE_ALL
- select ARCH_HAS_GIGANTIC_PAGE
+ select ARCH_HAS_GIGANTIC_PAGE if (MEMORY_ISOLATION && COMPACTION) || CMA
select ARCH_HAS_KCOV
select ARCH_HAS_SET_MEMORY
select ARCH_HAS_SG_CHAIN
@@ -184,7 +185,7 @@ config SCHED_OMIT_FRAME_POINTER
config PGTABLE_LEVELS
int
- default 4
+ default 5
source "init/Kconfig"
@@ -221,6 +222,10 @@ config HAVE_MARCH_Z13_FEATURES
def_bool n
select HAVE_MARCH_ZEC12_FEATURES
+config HAVE_MARCH_Z14_FEATURES
+ def_bool n
+ select HAVE_MARCH_Z13_FEATURES
+
choice
prompt "Processor type"
default MARCH_Z196
@@ -281,6 +286,14 @@ config MARCH_Z13
2964 series). The kernel will be slightly faster but will not work on
older machines.
+config MARCH_Z14
+ bool "IBM z14"
+ select HAVE_MARCH_Z14_FEATURES
+ help
+ Select this to enable optimizations for IBM z14 (3906 series).
+ The kernel will be slightly faster but will not work on older
+ machines.
+
endchoice
config MARCH_Z900_TUNE
@@ -304,6 +317,9 @@ config MARCH_ZEC12_TUNE
config MARCH_Z13_TUNE
def_bool TUNE_Z13 || MARCH_Z13 && TUNE_DEFAULT
+config MARCH_Z14_TUNE
+ def_bool TUNE_Z14 || MARCH_Z14 && TUNE_DEFAULT
+
choice
prompt "Tune code generation"
default TUNE_DEFAULT
@@ -342,6 +358,9 @@ config TUNE_ZEC12
config TUNE_Z13
bool "IBM z13"
+config TUNE_Z14
+ bool "IBM z14"
+
endchoice
config 64BIT
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index 54e00526b8df..dac821cfcd43 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -31,7 +31,8 @@ mflags-$(CONFIG_MARCH_Z9_109) := -march=z9-109
mflags-$(CONFIG_MARCH_Z10) := -march=z10
mflags-$(CONFIG_MARCH_Z196) := -march=z196
mflags-$(CONFIG_MARCH_ZEC12) := -march=zEC12
-mflags-$(CONFIG_MARCH_Z13) := -march=z13
+mflags-$(CONFIG_MARCH_Z13) := -march=z13
+mflags-$(CONFIG_MARCH_Z14) := -march=z14
export CC_FLAGS_MARCH := $(mflags-y)
@@ -44,7 +45,8 @@ cflags-$(CONFIG_MARCH_Z9_109_TUNE) += -mtune=z9-109
cflags-$(CONFIG_MARCH_Z10_TUNE) += -mtune=z10
cflags-$(CONFIG_MARCH_Z196_TUNE) += -mtune=z196
cflags-$(CONFIG_MARCH_ZEC12_TUNE) += -mtune=zEC12
-cflags-$(CONFIG_MARCH_Z13_TUNE) += -mtune=z13
+cflags-$(CONFIG_MARCH_Z13_TUNE) += -mtune=z13
+cflags-$(CONFIG_MARCH_Z14_TUNE) += -mtune=z14
cflags-y += -Wa,-I$(srctree)/arch/$(ARCH)/include
diff --git a/arch/s390/configs/zfcpdump_defconfig b/arch/s390/configs/zfcpdump_defconfig
index afa46a7406ea..04e042edbab7 100644
--- a/arch/s390/configs/zfcpdump_defconfig
+++ b/arch/s390/configs/zfcpdump_defconfig
@@ -27,6 +27,7 @@ CONFIG_NET=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
# CONFIG_FIRMWARE_IN_KERNEL is not set
+CONFIG_BLK_DEV_RAM=y
# CONFIG_BLK_DEV_XPRAM is not set
# CONFIG_DCSSBLK is not set
# CONFIG_DASD is not set
@@ -59,6 +60,7 @@ CONFIG_CONFIGFS_FS=y
# CONFIG_NETWORK_FILESYSTEMS is not set
CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_FS=y
CONFIG_DEBUG_KERNEL=y
CONFIG_PANIC_ON_OOPS=y
# CONFIG_SCHED_DEBUG is not set
diff --git a/arch/s390/crypto/Makefile b/arch/s390/crypto/Makefile
index 678d9863e3f0..ad4bd777768d 100644
--- a/arch/s390/crypto/Makefile
+++ b/arch/s390/crypto/Makefile
@@ -6,7 +6,8 @@ obj-$(CONFIG_CRYPTO_SHA1_S390) += sha1_s390.o sha_common.o
obj-$(CONFIG_CRYPTO_SHA256_S390) += sha256_s390.o sha_common.o
obj-$(CONFIG_CRYPTO_SHA512_S390) += sha512_s390.o sha_common.o
obj-$(CONFIG_CRYPTO_DES_S390) += des_s390.o
-obj-$(CONFIG_CRYPTO_AES_S390) += aes_s390.o paes_s390.o
+obj-$(CONFIG_CRYPTO_AES_S390) += aes_s390.o
+obj-$(CONFIG_CRYPTO_PAES_S390) += paes_s390.o
obj-$(CONFIG_S390_PRNG) += prng.o
obj-$(CONFIG_CRYPTO_GHASH_S390) += ghash_s390.o
obj-$(CONFIG_CRYPTO_CRC32_S390) += crc32-vx_s390.o
diff --git a/arch/s390/crypto/arch_random.c b/arch/s390/crypto/arch_random.c
index 9317b3e645e2..36aefc07d10c 100644
--- a/arch/s390/crypto/arch_random.c
+++ b/arch/s390/crypto/arch_random.c
@@ -12,6 +12,7 @@
#include <linux/kernel.h>
#include <linux/atomic.h>
+#include <linux/random.h>
#include <linux/static_key.h>
#include <asm/cpacf.h>
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index 45092b12f54f..6e2c9f7e47fa 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -1,10 +1,12 @@
generic-y += asm-offsets.h
generic-y += cacheflush.h
generic-y += clkdev.h
+generic-y += device.h
generic-y += dma-contiguous.h
generic-y += div64.h
generic-y += emergency-restart.h
generic-y += export.h
+generic-y += fb.h
generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += kmap_types.h
@@ -14,4 +16,5 @@ generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
generic-y += preempt.h
generic-y += trace_clock.h
+generic-y += unaligned.h
generic-y += word-at-a-time.h
diff --git a/arch/s390/include/asm/ap.h b/arch/s390/include/asm/ap.h
new file mode 100644
index 000000000000..c02f4aba88a6
--- /dev/null
+++ b/arch/s390/include/asm/ap.h
@@ -0,0 +1,126 @@
+/*
+ * Adjunct processor (AP) interfaces
+ *
+ * Copyright IBM Corp. 2017
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ *
+ * Author(s): Tony Krowiak <akrowia@linux.vnet.ibm.com>
+ * Martin Schwidefsky <schwidefsky@de.ibm.com>
+ * Harald Freudenberger <freude@de.ibm.com>
+ */
+
+#ifndef _ASM_S390_AP_H_
+#define _ASM_S390_AP_H_
+
+/**
+ * The ap_qid_t identifier of an ap queue.
+ * If the AP facilities test (APFT) facility is available,
+ * card and queue index are 8 bit values, otherwise
+ * card index is 6 bit and queue index a 4 bit value.
+ */
+typedef unsigned int ap_qid_t;
+
+#define AP_MKQID(_card, _queue) (((_card) & 63) << 8 | ((_queue) & 255))
+#define AP_QID_CARD(_qid) (((_qid) >> 8) & 63)
+#define AP_QID_QUEUE(_qid) ((_qid) & 255)
+
+/**
+ * struct ap_queue_status - Holds the AP queue status.
+ * @queue_empty: Shows if queue is empty
+ * @replies_waiting: Waiting replies
+ * @queue_full: Is 1 if the queue is full
+ * @irq_enabled: Shows if interrupts are enabled for the AP
+ * @response_code: Holds the 8 bit response code
+ *
+ * The ap queue status word is returned by all three AP functions
+ * (PQAP, NQAP and DQAP). There's a set of flags in the first
+ * byte, followed by a 1 byte response code.
+ */
+struct ap_queue_status {
+ unsigned int queue_empty : 1;
+ unsigned int replies_waiting : 1;
+ unsigned int queue_full : 1;
+ unsigned int _pad1 : 4;
+ unsigned int irq_enabled : 1;
+ unsigned int response_code : 8;
+ unsigned int _pad2 : 16;
+};
+
+/**
+ * ap_test_queue(): Test adjunct processor queue.
+ * @qid: The AP queue number
+ * @tbit: Test facilities bit
+ * @info: Pointer to queue descriptor
+ *
+ * Returns AP queue status structure.
+ */
+struct ap_queue_status ap_test_queue(ap_qid_t qid,
+ int tbit,
+ unsigned long *info);
+
+struct ap_config_info {
+ unsigned int apsc : 1; /* S bit */
+ unsigned int apxa : 1; /* N bit */
+ unsigned int qact : 1; /* C bit */
+ unsigned int rc8a : 1; /* R bit */
+ unsigned char _reserved1 : 4;
+ unsigned char _reserved2[3];
+ unsigned char Na; /* max # of APs - 1 */
+ unsigned char Nd; /* max # of Domains - 1 */
+ unsigned char _reserved3[10];
+ unsigned int apm[8]; /* AP ID mask */
+ unsigned int aqm[8]; /* AP queue mask */
+ unsigned int adm[8]; /* AP domain mask */
+ unsigned char _reserved4[16];
+} __aligned(8);
+
+/*
+ * ap_query_configuration(): Fetch cryptographic config info
+ *
+ * Returns the ap configuration info fetched via PQAP(QCI).
+ * On success 0 is returned, on failure a negative errno
+ * is returned, e.g. if the PQAP(QCI) instruction is not
+ * available, the return value will be -EOPNOTSUPP.
+ */
+int ap_query_configuration(struct ap_config_info *info);
+
+/*
+ * struct ap_qirq_ctrl - convenient struct for easy invocation
+ * of the ap_queue_irq_ctrl() function. This struct is passed
+ * as GR1 parameter to the PQAP(AQIC) instruction. For details
+ * please see the AR documentation.
+ */
+struct ap_qirq_ctrl {
+ unsigned int _res1 : 8;
+ unsigned int zone : 8; /* zone info */
+ unsigned int ir : 1; /* ir flag: enable (1) or disable (0) irq */
+ unsigned int _res2 : 4;
+ unsigned int gisc : 3; /* guest isc field */
+ unsigned int _res3 : 6;
+ unsigned int gf : 2; /* gisa format */
+ unsigned int _res4 : 1;
+ unsigned int gisa : 27; /* gisa origin */
+ unsigned int _res5 : 1;
+ unsigned int isc : 3; /* irq sub class */
+};
+
+/**
+ * ap_queue_irq_ctrl(): Control interruption on a AP queue.
+ * @qid: The AP queue number
+ * @qirqctrl: struct ap_qirq_ctrl, see above
+ * @ind: The notification indicator byte
+ *
+ * Returns AP queue status.
+ *
+ * Control interruption on the given AP queue.
+ * Just a simple wrapper function for the low level PQAP(AQIC)
+ * instruction available for other kernel modules.
+ */
+struct ap_queue_status ap_queue_irq_ctrl(ap_qid_t qid,
+ struct ap_qirq_ctrl qirqctrl,
+ void *ind);
+
+#endif /* _ASM_S390_AP_H_ */
diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h
index 1bbd9dbfe4e0..ce9cc123988b 100644
--- a/arch/s390/include/asm/bug.h
+++ b/arch/s390/include/asm/bug.h
@@ -14,7 +14,7 @@
".section .rodata.str,\"aMS\",@progbits,1\n" \
"2: .asciz \""__FILE__"\"\n" \
".previous\n" \
- ".section __bug_table,\"a\"\n" \
+ ".section __bug_table,\"aw\"\n" \
"3: .long 1b-3b,2b-3b\n" \
" .short %0,%1\n" \
" .org 3b+%2\n" \
@@ -30,7 +30,7 @@
asm volatile( \
"0: j 0b+2\n" \
"1:\n" \
- ".section __bug_table,\"a\"\n" \
+ ".section __bug_table,\"aw\"\n" \
"2: .long 1b-2b\n" \
" .short %0\n" \
" .org 2b+%1\n" \
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 0ddd37e6c29d..07a82bc933a7 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -8,11 +8,12 @@
#include <linux/sched/task_stack.h>
#include <linux/thread_info.h>
-#define __TYPE_IS_PTR(t) (!__builtin_types_compatible_p(typeof(0?(t)0:0ULL), u64))
+#define __TYPE_IS_PTR(t) (!__builtin_types_compatible_p( \
+ typeof(0?(__force t)0:0ULL), u64))
#define __SC_DELOUSE(t,v) ({ \
BUILD_BUG_ON(sizeof(t) > 4 && !__TYPE_IS_PTR(t)); \
- (t)(__TYPE_IS_PTR(t) ? ((v) & 0x7fffffff) : (v)); \
+ (__force t)(__TYPE_IS_PTR(t) ? ((v) & 0x7fffffff) : (v)); \
})
#define PSW32_MASK_PER 0x40000000UL
@@ -178,7 +179,6 @@ struct compat_statfs64 {
u32 f_spare[4];
};
-#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
#define COMPAT_RLIM_INFINITY 0xffffffff
typedef u32 compat_old_sigset_t; /* at least 32 bits */
diff --git a/arch/s390/include/asm/cpcmd.h b/arch/s390/include/asm/cpcmd.h
index 3dfadb5d648f..ca2b0624ad46 100644
--- a/arch/s390/include/asm/cpcmd.h
+++ b/arch/s390/include/asm/cpcmd.h
@@ -10,9 +10,8 @@
/*
* the lowlevel function for cpcmd
- * the caller of __cpcmd has to ensure that the response buffer is below 2 GB
*/
-extern int __cpcmd(const char *cmd, char *response, int rlen, int *response_code);
+int __cpcmd(const char *cmd, char *response, int rlen, int *response_code);
/*
* cpcmd is the in-kernel interface for issuing CP commands
@@ -25,8 +24,8 @@ extern int __cpcmd(const char *cmd, char *response, int rlen, int *response_code
* response_code: return pointer for VM's error code
* return value: the size of the response. The caller can check if the buffer
* was large enough by comparing the return value and rlen
- * NOTE: If the response buffer is not below 2 GB, cpcmd can sleep
+ * NOTE: If the response buffer is not in real storage, cpcmd can sleep
*/
-extern int cpcmd(const char *cmd, char *response, int rlen, int *response_code);
+int cpcmd(const char *cmd, char *response, int rlen, int *response_code);
#endif /* _ASM_S390_CPCMD_H */
diff --git a/arch/s390/include/asm/ctl_reg.h b/arch/s390/include/asm/ctl_reg.h
index d0441ad2a990..e508dff92535 100644
--- a/arch/s390/include/asm/ctl_reg.h
+++ b/arch/s390/include/asm/ctl_reg.h
@@ -59,7 +59,9 @@ union ctlreg0 {
unsigned long lap : 1; /* Low-address-protection control */
unsigned long : 4;
unsigned long edat : 1; /* Enhanced-DAT-enablement control */
- unsigned long : 4;
+ unsigned long : 2;
+ unsigned long iep : 1; /* Instruction-Execution-Protection */
+ unsigned long : 1;
unsigned long afp : 1; /* AFP-register control */
unsigned long vx : 1; /* Vector enablement control */
unsigned long : 7;
diff --git a/arch/s390/include/asm/device.h b/arch/s390/include/asm/device.h
deleted file mode 100644
index 5203fc87f080..000000000000
--- a/arch/s390/include/asm/device.h
+++ /dev/null
@@ -1,10 +0,0 @@
-/*
- * Arch specific extensions to struct device
- *
- * This file is released under the GPLv2
- */
-struct dev_archdata {
-};
-
-struct pdev_archdata {
-};
diff --git a/arch/s390/include/asm/diag.h b/arch/s390/include/asm/diag.h
index 8acf482162ed..88162bb5c190 100644
--- a/arch/s390/include/asm/diag.h
+++ b/arch/s390/include/asm/diag.h
@@ -8,6 +8,7 @@
#ifndef _ASM_S390_DIAG_H
#define _ASM_S390_DIAG_H
+#include <linux/if_ether.h>
#include <linux/percpu.h>
enum diag_stat_enum {
@@ -24,6 +25,7 @@ enum diag_stat_enum {
DIAG_STAT_X224,
DIAG_STAT_X250,
DIAG_STAT_X258,
+ DIAG_STAT_X26C,
DIAG_STAT_X288,
DIAG_STAT_X2C4,
DIAG_STAT_X2FC,
@@ -225,6 +227,30 @@ struct diag204_x_phys_block {
struct diag204_x_phys_cpu cpus[];
} __packed;
+enum diag26c_sc {
+ DIAG26C_MAC_SERVICES = 0x00000030
+};
+
+enum diag26c_version {
+ DIAG26C_VERSION2 = 0x00000002 /* z/VM 5.4.0 */
+};
+
+#define DIAG26C_GET_MAC 0x0000
+struct diag26c_mac_req {
+ u32 resp_buf_len;
+ u32 resp_version;
+ u16 op_code;
+ u16 devno;
+ u8 res[4];
+};
+
+struct diag26c_mac_resp {
+ u32 version;
+ u8 mac[ETH_ALEN];
+ u8 res[2];
+} __aligned(8);
+
int diag204(unsigned long subcode, unsigned long size, void *addr);
int diag224(void *ptr);
+int diag26c(void *req, void *resp, enum diag26c_sc subcode);
#endif /* _ASM_S390_DIAG_H */
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index 3108b8dbe266..512ad0eaa11a 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -8,8 +8,6 @@
#include <linux/dma-debug.h>
#include <linux/io.h>
-#define DMA_ERROR_CODE (~(dma_addr_t) 0x0)
-
extern const struct dma_map_ops s390_pci_dma_ops;
static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
diff --git a/arch/s390/include/asm/eadm.h b/arch/s390/include/asm/eadm.h
index 67026300c88e..144809a3f4f6 100644
--- a/arch/s390/include/asm/eadm.h
+++ b/arch/s390/include/asm/eadm.h
@@ -3,6 +3,7 @@
#include <linux/types.h>
#include <linux/device.h>
+#include <linux/blkdev.h>
struct arqb {
u64 data;
@@ -105,13 +106,14 @@ struct scm_driver {
int (*probe) (struct scm_device *scmdev);
int (*remove) (struct scm_device *scmdev);
void (*notify) (struct scm_device *scmdev, enum scm_event event);
- void (*handler) (struct scm_device *scmdev, void *data, int error);
+ void (*handler) (struct scm_device *scmdev, void *data,
+ blk_status_t error);
};
int scm_driver_register(struct scm_driver *scmdrv);
void scm_driver_unregister(struct scm_driver *scmdrv);
int eadm_start_aob(struct aob *aob);
-void scm_irq_handler(struct aob *aob, int error);
+void scm_irq_handler(struct aob *aob, blk_status_t error);
#endif /* _ASM_S390_EADM_H */
diff --git a/arch/s390/include/asm/ebcdic.h b/arch/s390/include/asm/ebcdic.h
index c5befc5a3bf5..b71735eab23f 100644
--- a/arch/s390/include/asm/ebcdic.h
+++ b/arch/s390/include/asm/ebcdic.h
@@ -9,9 +9,7 @@
#ifndef _EBCDIC_H
#define _EBCDIC_H
-#ifndef _S390_TYPES_H
-#include <types.h>
-#endif
+#include <linux/types.h>
extern __u8 _ascebc_500[256]; /* ASCII -> EBCDIC 500 conversion table */
extern __u8 _ebcasc_500[256]; /* EBCDIC 500 -> ASCII conversion table */
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index e8f623041769..65998a1f5d43 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -117,6 +117,9 @@
#define ELF_DATA ELFDATA2MSB
#define ELF_ARCH EM_S390
+/* s390 specific phdr types */
+#define PT_S390_PGSTE 0x70000000
+
/*
* ELF register definitions..
*/
@@ -151,6 +154,35 @@ extern unsigned int vdso_enabled;
&& (x)->e_ident[EI_CLASS] == ELF_CLASS)
#define compat_start_thread start_thread31
+struct arch_elf_state {
+ int rc;
+};
+
+#define INIT_ARCH_ELF_STATE { .rc = 0 }
+
+#define arch_check_elf(ehdr, interp, interp_ehdr, state) (0)
+#ifdef CONFIG_PGSTE
+#define arch_elf_pt_proc(ehdr, phdr, elf, interp, state) \
+({ \
+ struct arch_elf_state *_state = state; \
+ if ((phdr)->p_type == PT_S390_PGSTE && \
+ !page_table_allocate_pgste && \
+ !test_thread_flag(TIF_PGSTE) && \
+ !current->mm->context.alloc_pgste) { \
+ set_thread_flag(TIF_PGSTE); \
+ set_pt_regs_flag(task_pt_regs(current), \
+ PIF_SYSCALL_RESTART); \
+ _state->rc = -EAGAIN; \
+ } \
+ _state->rc; \
+})
+#else
+#define arch_elf_pt_proc(ehdr, phdr, elf, interp, state) \
+({ \
+ (state)->rc; \
+})
+#endif
+
/* For SVR4/S390 the function pointer to be registered with `atexit` is
passed in R14. */
#define ELF_PLAT_INIT(_r, load_addr) \
@@ -159,16 +191,15 @@ extern unsigned int vdso_enabled;
} while (0)
#define CORE_DUMP_USE_REGSET
-#define ELF_EXEC_PAGESIZE 4096
-
-/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
- use of this is to invoke "./ld.so someprog" to test out a new version of
- the loader. We need to make sure that it is out of the way of the program
- that it will "exec", and that there is sufficient room for the brk. 64-bit
- tasks are aligned to 4GB. */
-#define ELF_ET_DYN_BASE (is_compat_task() ? \
- (STACK_TOP / 3 * 2) : \
- (STACK_TOP / 3 * 2) & ~((1UL << 32) - 1))
+#define ELF_EXEC_PAGESIZE PAGE_SIZE
+
+/*
+ * This is the base location for PIE (ET_DYN with INTERP) loads. On
+ * 64-bit, this is raised to 4GB to leave the entire 32-bit address
+ * space open for things that want to use the area for 32-bit pointers.
+ */
+#define ELF_ET_DYN_BASE (is_compat_task() ? 0x000400000UL : \
+ 0x100000000UL)
/* This yields a mask that user programs can use to figure out what
instruction set this CPU supports. */
diff --git a/arch/s390/include/asm/fb.h b/arch/s390/include/asm/fb.h
deleted file mode 100644
index c7df38030992..000000000000
--- a/arch/s390/include/asm/fb.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _ASM_FB_H_
-#define _ASM_FB_H_
-#include <linux/fb.h>
-
-#define fb_pgprotect(...) do {} while (0)
-
-static inline int fb_is_primary_device(struct fb_info *info)
-{
- return 0;
-}
-
-#endif /* _ASM_FB_H_ */
diff --git a/arch/s390/include/asm/futex.h b/arch/s390/include/asm/futex.h
index a4811aa0304d..8f8eec9e1198 100644
--- a/arch/s390/include/asm/futex.h
+++ b/arch/s390/include/asm/futex.h
@@ -21,17 +21,12 @@
: "0" (-EFAULT), "d" (oparg), "a" (uaddr), \
"m" (*uaddr) : "cc");
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+ u32 __user *uaddr)
{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
int oldval = 0, newval, ret;
load_kernel_asce();
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
pagefault_disable();
switch (op) {
@@ -60,17 +55,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
}
pagefault_enable();
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
- case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
- case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
- case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
- case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
- case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
- default: ret = -ENOSYS;
- }
- }
+ if (!ret)
+ *oval = oldval;
+
return ret;
}
diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h
index cd546a245c68..d95869ce3ca2 100644
--- a/arch/s390/include/asm/hugetlb.h
+++ b/arch/s390/include/asm/hugetlb.h
@@ -39,7 +39,7 @@ static inline int prepare_hugepage_range(struct file *file,
#define arch_clear_hugepage_flags(page) do { } while (0)
static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
+ pte_t *ptep, unsigned long sz)
{
if ((pte_val(*ptep) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R3)
pte_val(*ptep) = _REGION3_ENTRY_EMPTY;
@@ -112,4 +112,7 @@ static inline pte_t huge_pte_modify(pte_t pte, pgprot_t newprot)
return pte_modify(pte, newprot);
}
+#ifdef CONFIG_ARCH_HAS_GIGANTIC_PAGE
+static inline bool gigantic_page_supported(void) { return true; }
+#endif
#endif /* _ASM_S390_HUGETLB_H */
diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h
index 437e9af96688..904e4b3af95d 100644
--- a/arch/s390/include/asm/io.h
+++ b/arch/s390/include/asm/io.h
@@ -25,8 +25,6 @@ void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr);
#define IO_SPACE_LIMIT 0
-#ifdef CONFIG_PCI
-
#define ioremap_nocache(addr, size) ioremap(addr, size)
#define ioremap_wc ioremap_nocache
#define ioremap_wt ioremap_nocache
@@ -49,6 +47,8 @@ static inline void ioport_unmap(void __iomem *p)
{
}
+#ifdef CONFIG_PCI
+
/*
* s390 needs a private implementation of pci_iomap since ioremap with its
* offset parameter isn't sufficient. That's because BAR spaces are not
diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h
index edb5161df7e2..6810bd757312 100644
--- a/arch/s390/include/asm/ipl.h
+++ b/arch/s390/include/asm/ipl.h
@@ -81,7 +81,7 @@ struct ipl_parameter_block {
struct ipl_block_fcp fcp;
struct ipl_block_ccw ccw;
} ipl_info;
-} __attribute__((packed,aligned(4096)));
+} __packed __aligned(PAGE_SIZE);
/*
* IPL validity flags
diff --git a/arch/s390/include/asm/kexec.h b/arch/s390/include/asm/kexec.h
index 2f924bc30e35..dccf24ee26d3 100644
--- a/arch/s390/include/asm/kexec.h
+++ b/arch/s390/include/asm/kexec.h
@@ -41,24 +41,6 @@
/* The native architecture */
#define KEXEC_ARCH KEXEC_ARCH_S390
-/*
- * Size for s390x ELF notes per CPU
- *
- * Seven notes plus zero note at the end: prstatus, fpregset, timer,
- * tod_cmp, tod_reg, control regs, and prefix
- */
-#define KEXEC_NOTE_BYTES \
- (ALIGN(sizeof(struct elf_note), 4) * 8 + \
- ALIGN(sizeof("CORE"), 4) * 7 + \
- ALIGN(sizeof(struct elf_prstatus), 4) + \
- ALIGN(sizeof(elf_fpregset_t), 4) + \
- ALIGN(sizeof(u64), 4) + \
- ALIGN(sizeof(u64), 4) + \
- ALIGN(sizeof(u32), 4) + \
- ALIGN(sizeof(u64) * 16, 4) + \
- ALIGN(sizeof(u32), 4) \
- )
-
/* Provide a dummy definition to avoid build failures. */
static inline void crash_setup_regs(struct pt_regs *newregs,
struct pt_regs *oldregs) { }
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 65d07ac34647..51375e766e90 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -42,9 +42,11 @@
#define KVM_HALT_POLL_NS_DEFAULT 80000
/* s390-specific vcpu->requests bit members */
-#define KVM_REQ_ENABLE_IBS 8
-#define KVM_REQ_DISABLE_IBS 9
-#define KVM_REQ_ICPT_OPEREXC 10
+#define KVM_REQ_ENABLE_IBS KVM_ARCH_REQ(0)
+#define KVM_REQ_DISABLE_IBS KVM_ARCH_REQ(1)
+#define KVM_REQ_ICPT_OPEREXC KVM_ARCH_REQ(2)
+#define KVM_REQ_START_MIGRATION KVM_ARCH_REQ(3)
+#define KVM_REQ_STOP_MIGRATION KVM_ARCH_REQ(4)
#define SIGP_CTRL_C 0x80
#define SIGP_CTRL_SCN_MASK 0x3f
@@ -56,7 +58,7 @@ union bsca_sigp_ctrl {
__u8 r : 1;
__u8 scn : 6;
};
-} __packed;
+};
union esca_sigp_ctrl {
__u16 value;
@@ -65,14 +67,14 @@ union esca_sigp_ctrl {
__u8 reserved: 7;
__u8 scn;
};
-} __packed;
+};
struct esca_entry {
union esca_sigp_ctrl sigp_ctrl;
__u16 reserved1[3];
__u64 sda;
__u64 reserved2[6];
-} __packed;
+};
struct bsca_entry {
__u8 reserved0;
@@ -80,7 +82,7 @@ struct bsca_entry {
__u16 reserved[3];
__u64 sda;
__u64 reserved2[2];
-} __attribute__((packed));
+};
union ipte_control {
unsigned long val;
@@ -97,7 +99,7 @@ struct bsca_block {
__u64 mcn;
__u64 reserved2;
struct bsca_entry cpu[KVM_S390_BSCA_CPU_SLOTS];
-} __attribute__((packed));
+};
struct esca_block {
union ipte_control ipte_control;
@@ -105,7 +107,21 @@ struct esca_block {
__u64 mcn[4];
__u64 reserved2[20];
struct esca_entry cpu[KVM_S390_ESCA_CPU_SLOTS];
-} __packed;
+};
+
+/*
+ * This struct is used to store some machine check info from lowcore
+ * for machine checks that happen while the guest is running.
+ * This info in host's lowcore might be overwritten by a second machine
+ * check from host when host is in the machine check's high-level handling.
+ * The size is 24 bytes.
+ */
+struct mcck_volatile_info {
+ __u64 mcic;
+ __u64 failing_storage_address;
+ __u32 ext_damage_code;
+ __u32 reserved;
+};
#define CPUSTAT_STOPPED 0x80000000
#define CPUSTAT_WAIT 0x10000000
@@ -210,7 +226,9 @@ struct kvm_s390_sie_block {
#define ECB3_RI 0x01
__u8 ecb3; /* 0x0063 */
__u32 scaol; /* 0x0064 */
- __u8 reserved68[4]; /* 0x0068 */
+ __u8 reserved68; /* 0x0068 */
+ __u8 epdx; /* 0x0069 */
+ __u8 reserved6a[2]; /* 0x006a */
__u32 todpr; /* 0x006c */
__u8 reserved70[16]; /* 0x0070 */
__u64 mso; /* 0x0080 */
@@ -249,6 +267,7 @@ struct kvm_s390_sie_block {
__u64 cbrlo; /* 0x01b8 */
__u8 reserved1c0[8]; /* 0x01c0 */
#define ECD_HOSTREGMGMT 0x20000000
+#define ECD_MEF 0x08000000
__u32 ecd; /* 0x01c8 */
__u8 reserved1cc[18]; /* 0x01cc */
__u64 pp; /* 0x01de */
@@ -260,14 +279,15 @@ struct kvm_s390_sie_block {
struct kvm_s390_itdb {
__u8 data[256];
-} __packed;
+};
struct sie_page {
struct kvm_s390_sie_block sie_block;
- __u8 reserved200[1024]; /* 0x0200 */
+ struct mcck_volatile_info mcck_info; /* 0x0200 */
+ __u8 reserved218[1000]; /* 0x0218 */
struct kvm_s390_itdb itdb; /* 0x0600 */
__u8 reserved700[2304]; /* 0x0700 */
-} __packed;
+};
struct kvm_vcpu_stat {
u64 exit_userspace;
@@ -680,7 +700,7 @@ struct sie_page2 {
__u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64]; /* 0x0000 */
struct kvm_s390_crypto_cb crycb; /* 0x0800 */
u8 reserved900[0x1000 - 0x900]; /* 0x0900 */
-} __packed;
+};
struct kvm_s390_vsie {
struct mutex mutex;
@@ -690,6 +710,12 @@ struct kvm_s390_vsie {
struct page *pages[KVM_MAX_VCPUS];
};
+struct kvm_s390_migration_state {
+ unsigned long bitmap_size; /* in bits (number of guest pages) */
+ atomic64_t dirty_pages; /* number of dirty pages */
+ unsigned long *pgste_bitmap;
+};
+
struct kvm_arch{
void *sca;
int use_esca;
@@ -716,7 +742,9 @@ struct kvm_arch{
struct kvm_s390_cpu_model model;
struct kvm_s390_crypto crypto;
struct kvm_s390_vsie vsie;
+ u8 epdx;
u64 epoch;
+ struct kvm_s390_migration_state *migration_state;
/* subset of available cpu features enabled by user space */
DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS);
};
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index 8a5b082797f8..a6870ea6ea8b 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -95,46 +95,46 @@ struct lowcore {
__u64 int_clock; /* 0x0310 */
__u64 mcck_clock; /* 0x0318 */
__u64 clock_comparator; /* 0x0320 */
+ __u64 boot_clock[2]; /* 0x0328 */
/* Current process. */
- __u64 current_task; /* 0x0328 */
- __u8 pad_0x318[0x320-0x318]; /* 0x0330 */
- __u64 kernel_stack; /* 0x0338 */
+ __u64 current_task; /* 0x0338 */
+ __u64 kernel_stack; /* 0x0340 */
/* Interrupt, panic and restart stack. */
- __u64 async_stack; /* 0x0340 */
- __u64 panic_stack; /* 0x0348 */
- __u64 restart_stack; /* 0x0350 */
+ __u64 async_stack; /* 0x0348 */
+ __u64 panic_stack; /* 0x0350 */
+ __u64 restart_stack; /* 0x0358 */
/* Restart function and parameter. */
- __u64 restart_fn; /* 0x0358 */
- __u64 restart_data; /* 0x0360 */
- __u64 restart_source; /* 0x0368 */
+ __u64 restart_fn; /* 0x0360 */
+ __u64 restart_data; /* 0x0368 */
+ __u64 restart_source; /* 0x0370 */
/* Address space pointer. */
- __u64 kernel_asce; /* 0x0370 */
- __u64 user_asce; /* 0x0378 */
+ __u64 kernel_asce; /* 0x0378 */
+ __u64 user_asce; /* 0x0380 */
/*
* The lpp and current_pid fields form a
* 64-bit value that is set as program
* parameter with the LPP instruction.
*/
- __u32 lpp; /* 0x0380 */
- __u32 current_pid; /* 0x0384 */
+ __u32 lpp; /* 0x0388 */
+ __u32 current_pid; /* 0x038c */
/* SMP info area */
- __u32 cpu_nr; /* 0x0388 */
- __u32 softirq_pending; /* 0x038c */
- __u64 percpu_offset; /* 0x0390 */
- __u64 vdso_per_cpu_data; /* 0x0398 */
- __u64 machine_flags; /* 0x03a0 */
- __u32 preempt_count; /* 0x03a8 */
- __u8 pad_0x03ac[0x03b0-0x03ac]; /* 0x03ac */
- __u64 gmap; /* 0x03b0 */
- __u32 spinlock_lockval; /* 0x03b8 */
- __u32 fpu_flags; /* 0x03bc */
- __u8 pad_0x03c0[0x0400-0x03c0]; /* 0x03c0 */
+ __u32 cpu_nr; /* 0x0390 */
+ __u32 softirq_pending; /* 0x0394 */
+ __u64 percpu_offset; /* 0x0398 */
+ __u64 vdso_per_cpu_data; /* 0x03a0 */
+ __u64 machine_flags; /* 0x03a8 */
+ __u32 preempt_count; /* 0x03b0 */
+ __u8 pad_0x03b4[0x03b8-0x03b4]; /* 0x03b4 */
+ __u64 gmap; /* 0x03b8 */
+ __u32 spinlock_lockval; /* 0x03c0 */
+ __u32 fpu_flags; /* 0x03c4 */
+ __u8 pad_0x03c8[0x0400-0x03c8]; /* 0x03c8 */
/* Per cpu primary space access list */
__u32 paste[16]; /* 0x0400 */
diff --git a/arch/s390/include/asm/mman.h b/arch/s390/include/asm/mman.h
deleted file mode 100644
index b79813d9cf68..000000000000
--- a/arch/s390/include/asm/mman.h
+++ /dev/null
@@ -1,11 +0,0 @@
-/*
- * S390 version
- *
- * Derived from "include/asm-i386/mman.h"
- */
-#ifndef __S390_MMAN_H__
-#define __S390_MMAN_H__
-
-#include <uapi/asm/mman.h>
-
-#endif /* __S390_MMAN_H__ */
diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h
index bd6f30304518..3f46a6577b8d 100644
--- a/arch/s390/include/asm/mmu.h
+++ b/arch/s390/include/asm/mmu.h
@@ -5,12 +5,11 @@
#include <linux/errno.h>
typedef struct {
+ spinlock_t lock;
cpumask_t cpu_attach_mask;
atomic_t flush_count;
unsigned int flush_mm;
- spinlock_t pgtable_lock;
struct list_head pgtable_list;
- spinlock_t gmap_lock;
struct list_head gmap_list;
unsigned long gmap_asce;
unsigned long asce;
@@ -27,10 +26,8 @@ typedef struct {
} mm_context_t;
#define INIT_MM_CONTEXT(name) \
- .context.pgtable_lock = \
- __SPIN_LOCK_UNLOCKED(name.context.pgtable_lock), \
+ .context.lock = __SPIN_LOCK_UNLOCKED(name.context.lock), \
.context.pgtable_list = LIST_HEAD_INIT(name.context.pgtable_list), \
- .context.gmap_lock = __SPIN_LOCK_UNLOCKED(name.context.gmap_lock), \
.context.gmap_list = LIST_HEAD_INIT(name.context.gmap_list),
static inline int tprot(unsigned long addr)
diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h
index 8712e11bead4..3c9abedc323c 100644
--- a/arch/s390/include/asm/mmu_context.h
+++ b/arch/s390/include/asm/mmu_context.h
@@ -12,26 +12,28 @@
#include <linux/mm_types.h>
#include <asm/tlbflush.h>
#include <asm/ctl_reg.h>
+#include <asm-generic/mm_hooks.h>
static inline int init_new_context(struct task_struct *tsk,
struct mm_struct *mm)
{
- spin_lock_init(&mm->context.pgtable_lock);
+ spin_lock_init(&mm->context.lock);
INIT_LIST_HEAD(&mm->context.pgtable_list);
- spin_lock_init(&mm->context.gmap_lock);
INIT_LIST_HEAD(&mm->context.gmap_list);
cpumask_clear(&mm->context.cpu_attach_mask);
atomic_set(&mm->context.flush_count, 0);
mm->context.gmap_asce = 0;
mm->context.flush_mm = 0;
#ifdef CONFIG_PGSTE
- mm->context.alloc_pgste = page_table_allocate_pgste;
+ mm->context.alloc_pgste = page_table_allocate_pgste ||
+ test_thread_flag(TIF_PGSTE) ||
+ current->mm->context.alloc_pgste;
mm->context.has_pgste = 0;
mm->context.use_skey = 0;
mm->context.use_cmma = 0;
#endif
switch (mm->context.asce_limit) {
- case 1UL << 42:
+ case _REGION2_SIZE:
/*
* forked 3-level task, fall through to set new asce with new
* mm->pgd
@@ -42,12 +44,17 @@ static inline int init_new_context(struct task_struct *tsk,
mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH |
_ASCE_USER_BITS | _ASCE_TYPE_REGION3;
break;
- case 1UL << 53:
+ case -PAGE_SIZE:
+ /* forked 5-level task, set new asce with new_mm->pgd */
+ mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH |
+ _ASCE_USER_BITS | _ASCE_TYPE_REGION1;
+ break;
+ case _REGION1_SIZE:
/* forked 4-level task, set new asce with new mm->pgd */
mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH |
_ASCE_USER_BITS | _ASCE_TYPE_REGION2;
break;
- case 1UL << 31:
+ case _REGION3_SIZE:
/* forked 2-level compat task, set new asce with new mm->pgd */
mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH |
_ASCE_USER_BITS | _ASCE_TYPE_SEGMENT;
@@ -95,7 +102,6 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
if (prev == next)
return;
cpumask_set_cpu(cpu, &next->context.cpu_attach_mask);
- cpumask_set_cpu(cpu, mm_cpumask(next));
/* Clear old ASCE by loading the kernel ASCE. */
__ctl_load(S390_lowcore.kernel_asce, 1, 1);
__ctl_load(S390_lowcore.kernel_asce, 7, 7);
@@ -113,9 +119,8 @@ static inline void finish_arch_post_lock_switch(void)
preempt_disable();
while (atomic_read(&mm->context.flush_count))
cpu_relax();
-
- if (mm->context.flush_mm)
- __tlb_flush_mm(mm);
+ cpumask_set_cpu(smp_processor_id(), mm_cpumask(mm));
+ __tlb_flush_mm_lazy(mm);
preempt_enable();
}
set_fs(current->thread.mm_segment);
@@ -128,33 +133,8 @@ static inline void activate_mm(struct mm_struct *prev,
struct mm_struct *next)
{
switch_mm(prev, next, current);
+ cpumask_set_cpu(smp_processor_id(), mm_cpumask(next));
set_user_asce(next);
}
-static inline void arch_dup_mmap(struct mm_struct *oldmm,
- struct mm_struct *mm)
-{
-}
-
-static inline void arch_exit_mmap(struct mm_struct *mm)
-{
-}
-
-static inline void arch_unmap(struct mm_struct *mm,
- struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
-{
-}
-
-static inline void arch_bprm_mm_init(struct mm_struct *mm,
- struct vm_area_struct *vma)
-{
-}
-
-static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
- bool write, bool execute, bool foreign)
-{
- /* by default, allow everything */
- return true;
-}
#endif /* __S390_MMU_CONTEXT_H */
diff --git a/arch/s390/include/asm/nmi.h b/arch/s390/include/asm/nmi.h
index e3e8895f5d3e..c8e211b9a002 100644
--- a/arch/s390/include/asm/nmi.h
+++ b/arch/s390/include/asm/nmi.h
@@ -14,11 +14,24 @@
#include <linux/const.h>
#include <linux/types.h>
+#define MCIC_SUBCLASS_MASK (1ULL<<63 | 1ULL<<62 | 1ULL<<61 | \
+ 1ULL<<59 | 1ULL<<58 | 1ULL<<56 | \
+ 1ULL<<55 | 1ULL<<54 | 1ULL<<53 | \
+ 1ULL<<52 | 1ULL<<47 | 1ULL<<46 | \
+ 1ULL<<45 | 1ULL<<44)
#define MCCK_CODE_SYSTEM_DAMAGE _BITUL(63)
+#define MCCK_CODE_EXT_DAMAGE _BITUL(63 - 5)
+#define MCCK_CODE_CP _BITUL(63 - 9)
#define MCCK_CODE_CPU_TIMER_VALID _BITUL(63 - 46)
#define MCCK_CODE_PSW_MWP_VALID _BITUL(63 - 20)
#define MCCK_CODE_PSW_IA_VALID _BITUL(63 - 23)
+#define MCCK_CR14_CR_PENDING_SUB_MASK (1 << 28)
+#define MCCK_CR14_RECOVERY_SUB_MASK (1 << 27)
+#define MCCK_CR14_DEGRAD_SUB_MASK (1 << 26)
+#define MCCK_CR14_EXT_DAMAGE_SUB_MASK (1 << 25)
+#define MCCK_CR14_WARN_SUB_MASK (1 << 24)
+
#ifndef __ASSEMBLY__
union mci {
@@ -59,7 +72,7 @@ union mci {
u64 ar : 1; /* 33 access register validity */
u64 da : 1; /* 34 delayed access exception */
u64 : 1; /* 35 */
- u64 gs : 1; /* 36 guarded storage registers */
+ u64 gs : 1; /* 36 guarded storage registers validity */
u64 : 5; /* 37-41 */
u64 pr : 1; /* 42 tod programmable register validity */
u64 fc : 1; /* 43 fp control register validity */
diff --git a/arch/s390/include/asm/page-states.h b/arch/s390/include/asm/page-states.h
index 42267a2fe29e..22b0f49e87c1 100644
--- a/arch/s390/include/asm/page-states.h
+++ b/arch/s390/include/asm/page-states.h
@@ -13,7 +13,8 @@
#define ESSA_SET_POT_VOLATILE 4
#define ESSA_SET_STABLE_RESIDENT 5
#define ESSA_SET_STABLE_IF_RESIDENT 6
+#define ESSA_SET_STABLE_NODAT 7
-#define ESSA_MAX ESSA_SET_STABLE_IF_RESIDENT
+#define ESSA_MAX ESSA_SET_STABLE_NODAT
#endif
diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h
index 69b8a41fca84..5d5c2b3500a4 100644
--- a/arch/s390/include/asm/page.h
+++ b/arch/s390/include/asm/page.h
@@ -10,10 +10,14 @@
#include <linux/const.h>
#include <asm/types.h>
+#define _PAGE_SHIFT 12
+#define _PAGE_SIZE (_AC(1, UL) << _PAGE_SHIFT)
+#define _PAGE_MASK (~(_PAGE_SIZE - 1))
+
/* PAGE_SHIFT determines the page size */
-#define PAGE_SHIFT 12
-#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
-#define PAGE_MASK (~(PAGE_SIZE-1))
+#define PAGE_SHIFT _PAGE_SHIFT
+#define PAGE_SIZE _PAGE_SIZE
+#define PAGE_MASK _PAGE_MASK
#define PAGE_DEFAULT_ACC 0
#define PAGE_DEFAULT_KEY (PAGE_DEFAULT_ACC << 4)
@@ -74,6 +78,7 @@ typedef struct { unsigned long pgste; } pgste_t;
typedef struct { unsigned long pte; } pte_t;
typedef struct { unsigned long pmd; } pmd_t;
typedef struct { unsigned long pud; } pud_t;
+typedef struct { unsigned long p4d; } p4d_t;
typedef struct { unsigned long pgd; } pgd_t;
typedef pte_t *pgtable_t;
@@ -82,12 +87,14 @@ typedef pte_t *pgtable_t;
#define pte_val(x) ((x).pte)
#define pmd_val(x) ((x).pmd)
#define pud_val(x) ((x).pud)
+#define p4d_val(x) ((x).p4d)
#define pgd_val(x) ((x).pgd)
#define __pgste(x) ((pgste_t) { (x) } )
#define __pte(x) ((pte_t) { (x) } )
#define __pmd(x) ((pmd_t) { (x) } )
#define __pud(x) ((pud_t) { (x) } )
+#define __p4d(x) ((p4d_t) { (x) } )
#define __pgd(x) ((pgd_t) { (x) } )
#define __pgprot(x) ((pgprot_t) { (x) } )
@@ -130,6 +137,9 @@ static inline int page_reset_referenced(unsigned long addr)
struct page;
void arch_free_page(struct page *page, int order);
void arch_alloc_page(struct page *page, int order);
+void arch_set_page_dat(struct page *page, int order);
+void arch_set_page_nodat(struct page *page, int order);
+int arch_test_page_nodat(struct page *page);
void arch_set_page_states(int make_stable);
static inline int devmem_is_allowed(unsigned long pfn)
@@ -142,16 +152,26 @@ static inline int devmem_is_allowed(unsigned long pfn)
#endif /* !__ASSEMBLY__ */
-#define __PAGE_OFFSET 0x0UL
-#define PAGE_OFFSET 0x0UL
-#define __pa(x) (unsigned long)(x)
-#define __va(x) (void *)(unsigned long)(x)
-#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
-#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
-#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
+#define __PAGE_OFFSET 0x0UL
+#define PAGE_OFFSET 0x0UL
+
+#define __pa(x) ((unsigned long)(x))
+#define __va(x) ((void *)(unsigned long)(x))
+
+#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT)
#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT)
+
+#define virt_to_page(kaddr) pfn_to_page(virt_to_pfn(kaddr))
#define page_to_virt(page) pfn_to_virt(page_to_pfn(page))
+#define phys_to_pfn(kaddr) ((kaddr) >> PAGE_SHIFT)
+#define pfn_to_phys(pfn) ((pfn) << PAGE_SHIFT)
+
+#define phys_to_page(kaddr) pfn_to_page(phys_to_pfn(kaddr))
+#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
+
+#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
+
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | \
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
index 4e3186649578..386df9adef0a 100644
--- a/arch/s390/include/asm/pci.h
+++ b/arch/s390/include/asm/pci.h
@@ -8,6 +8,7 @@
#include <linux/pci.h>
#include <linux/mutex.h>
+#include <linux/iommu.h>
#include <asm-generic/pci.h>
#include <asm/pci_clp.h>
#include <asm/pci_debug.h>
@@ -70,11 +71,10 @@ struct zpci_fmb {
} __packed __aligned(128);
enum zpci_state {
- ZPCI_FN_STATE_RESERVED,
- ZPCI_FN_STATE_STANDBY,
- ZPCI_FN_STATE_CONFIGURED,
- ZPCI_FN_STATE_ONLINE,
- NR_ZPCI_FN_STATES,
+ ZPCI_FN_STATE_STANDBY = 0,
+ ZPCI_FN_STATE_CONFIGURED = 1,
+ ZPCI_FN_STATE_RESERVED = 2,
+ ZPCI_FN_STATE_ONLINE = 3,
};
struct zpci_bar_struct {
@@ -109,7 +109,7 @@ struct zpci_dev {
u64 msi_addr; /* MSI address */
unsigned int max_msi; /* maximum number of MSI's */
struct airq_iv *aibv; /* adapter interrupt bit vector */
- unsigned int aisb; /* number of the summary bit */
+ unsigned long aisb; /* number of the summary bit */
/* DMA stuff */
unsigned long *dma_table;
@@ -123,6 +123,8 @@ struct zpci_dev {
unsigned long iommu_pages;
unsigned int next_bit;
+ struct iommu_device iommu_dev; /* IOMMU core handle */
+
char res_name[16];
struct zpci_bar_struct bars[PCI_BAR_COUNT];
@@ -159,11 +161,12 @@ extern const struct attribute_group *zpci_attr_groups[];
----------------------------------------------------------------------------- */
/* Base stuff */
int zpci_create_device(struct zpci_dev *);
+void zpci_remove_device(struct zpci_dev *zdev);
int zpci_enable_device(struct zpci_dev *);
int zpci_disable_device(struct zpci_dev *);
-void zpci_stop_device(struct zpci_dev *);
int zpci_register_ioat(struct zpci_dev *, u8, u64, u64, u64);
int zpci_unregister_ioat(struct zpci_dev *, u8);
+void zpci_remove_reserved_devices(void);
/* CLP */
int clp_scan_pci_devices(void);
@@ -172,6 +175,11 @@ int clp_rescan_pci_devices_simple(void);
int clp_add_pci_device(u32, u32, int);
int clp_enable_fh(struct zpci_dev *, u8);
int clp_disable_fh(struct zpci_dev *);
+int clp_get_state(u32 fid, enum zpci_state *state);
+
+/* IOMMU Interface */
+int zpci_init_iommu(struct zpci_dev *zdev);
+void zpci_destroy_iommu(struct zpci_dev *zdev);
#ifdef CONFIG_PCI
/* Error handling and recovery */
diff --git a/arch/s390/include/asm/pci_insn.h b/arch/s390/include/asm/pci_insn.h
index 649eb62c52b3..34abcf275799 100644
--- a/arch/s390/include/asm/pci_insn.h
+++ b/arch/s390/include/asm/pci_insn.h
@@ -76,7 +76,7 @@ struct zpci_fib {
u32 gd;
} __packed __aligned(8);
-int zpci_mod_fc(u64 req, struct zpci_fib *fib);
+u8 zpci_mod_fc(u64 req, struct zpci_fib *fib, u8 *status);
int zpci_refresh_trans(u64 fn, u64 addr, u64 range);
int zpci_load(u64 *data, u64 req, u64 offset);
int zpci_store(u64 data, u64 req, u64 offset);
diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h
index 166f703dad7c..a0d9167519b1 100644
--- a/arch/s390/include/asm/pgalloc.h
+++ b/arch/s390/include/asm/pgalloc.h
@@ -15,6 +15,8 @@
#include <linux/gfp.h>
#include <linux/mm.h>
+#define CRST_ALLOC_ORDER 2
+
unsigned long *crst_table_alloc(struct mm_struct *);
void crst_table_free(struct mm_struct *, unsigned long *);
@@ -42,21 +44,33 @@ static inline void clear_table(unsigned long *s, unsigned long val, size_t n)
static inline void crst_table_init(unsigned long *crst, unsigned long entry)
{
- clear_table(crst, entry, sizeof(unsigned long)*2048);
+ clear_table(crst, entry, _CRST_TABLE_SIZE);
}
static inline unsigned long pgd_entry_type(struct mm_struct *mm)
{
- if (mm->context.asce_limit <= (1UL << 31))
+ if (mm->context.asce_limit <= _REGION3_SIZE)
return _SEGMENT_ENTRY_EMPTY;
- if (mm->context.asce_limit <= (1UL << 42))
+ if (mm->context.asce_limit <= _REGION2_SIZE)
return _REGION3_ENTRY_EMPTY;
- return _REGION2_ENTRY_EMPTY;
+ if (mm->context.asce_limit <= _REGION1_SIZE)
+ return _REGION2_ENTRY_EMPTY;
+ return _REGION1_ENTRY_EMPTY;
}
-int crst_table_upgrade(struct mm_struct *);
+int crst_table_upgrade(struct mm_struct *mm, unsigned long limit);
void crst_table_downgrade(struct mm_struct *);
+static inline p4d_t *p4d_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+ unsigned long *table = crst_table_alloc(mm);
+
+ if (table)
+ crst_table_init(table, _REGION2_ENTRY_EMPTY);
+ return (p4d_t *) table;
+}
+#define p4d_free(mm, p4d) crst_table_free(mm, (unsigned long *) p4d)
+
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address)
{
unsigned long *table = crst_table_alloc(mm);
@@ -86,9 +100,14 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
crst_table_free(mm, (unsigned long *) pmd);
}
-static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
+static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, p4d_t *p4d)
{
- pgd_val(*pgd) = _REGION2_ENTRY | __pa(pud);
+ pgd_val(*pgd) = _REGION1_ENTRY | __pa(p4d);
+}
+
+static inline void p4d_populate(struct mm_struct *mm, p4d_t *p4d, pud_t *pud)
+{
+ p4d_val(*p4d) = _REGION2_ENTRY | __pa(pud);
}
static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
@@ -102,7 +121,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
if (!table)
return NULL;
- if (mm->context.asce_limit == (1UL << 31)) {
+ if (mm->context.asce_limit == _REGION3_SIZE) {
/* Forking a compat process with 2 page table levels */
if (!pgtable_pmd_page_ctor(virt_to_page(table))) {
crst_table_free(mm, table);
@@ -114,7 +133,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
{
- if (mm->context.asce_limit == (1UL << 31))
+ if (mm->context.asce_limit == _REGION3_SIZE)
pgtable_pmd_page_dtor(virt_to_page(pgd));
crst_table_free(mm, (unsigned long *) pgd);
}
@@ -141,4 +160,8 @@ static inline void pmd_populate(struct mm_struct *mm,
extern void rcu_table_freelist_finish(void);
+void vmem_map_init(void);
+void *vmem_crst_alloc(unsigned long val);
+pte_t *vmem_pte_alloc(void);
+
#endif /* _S390_PGALLOC_H */
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index e6e3b887bee3..20e75a2ca93a 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -11,20 +11,6 @@
#ifndef _ASM_S390_PGTABLE_H
#define _ASM_S390_PGTABLE_H
-/*
- * The Linux memory management assumes a three-level page table setup.
- * For s390 64 bit we use up to four of the five levels the hardware
- * provides (region first tables are not used).
- *
- * The "pgd_xxx()" functions are trivial for a folded two-level
- * setup: the pgd is never bad, and a pmd always exists (as it's folded
- * into the pgd entry)
- *
- * This file contains the functions and defines necessary to modify and use
- * the S390 page table tree.
- */
-#ifndef __ASSEMBLY__
-#include <asm-generic/5level-fixup.h>
#include <linux/sched.h>
#include <linux/mm_types.h>
#include <linux/page-flags.h>
@@ -35,9 +21,6 @@
extern pgd_t swapper_pg_dir[];
extern void paging_init(void);
-extern void vmem_map_init(void);
-pmd_t *vmem_pmd_alloc(void);
-pte_t *vmem_pte_alloc(void);
enum {
PG_DIRECT_MAP_4K = 0,
@@ -78,34 +61,6 @@ extern unsigned long zero_page_mask;
#define __HAVE_COLOR_ZERO_PAGE
/* TODO: s390 cannot support io_remap_pfn_range... */
-#endif /* !__ASSEMBLY__ */
-
-/*
- * PMD_SHIFT determines the size of the area a second-level page
- * table can map
- * PGDIR_SHIFT determines what a third-level page table entry can map
- */
-#define PMD_SHIFT 20
-#define PUD_SHIFT 31
-#define PGDIR_SHIFT 42
-
-#define PMD_SIZE (1UL << PMD_SHIFT)
-#define PMD_MASK (~(PMD_SIZE-1))
-#define PUD_SIZE (1UL << PUD_SHIFT)
-#define PUD_MASK (~(PUD_SIZE-1))
-#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
-#define PGDIR_MASK (~(PGDIR_SIZE-1))
-
-/*
- * entries per page directory level: the S390 is two-level, so
- * we don't really have any PMD directory physically.
- * for S390 segment-table entries are combined to one PGD
- * that leads to 1024 pte per pgd
- */
-#define PTRS_PER_PTE 256
-#define PTRS_PER_PMD 2048
-#define PTRS_PER_PUD 2048
-#define PTRS_PER_PGD 2048
#define FIRST_USER_ADDRESS 0UL
@@ -115,10 +70,11 @@ extern unsigned long zero_page_mask;
printk("%s:%d: bad pmd %p.\n", __FILE__, __LINE__, (void *) pmd_val(e))
#define pud_ERROR(e) \
printk("%s:%d: bad pud %p.\n", __FILE__, __LINE__, (void *) pud_val(e))
+#define p4d_ERROR(e) \
+ printk("%s:%d: bad p4d %p.\n", __FILE__, __LINE__, (void *) p4d_val(e))
#define pgd_ERROR(e) \
printk("%s:%d: bad pgd %p.\n", __FILE__, __LINE__, (void *) pgd_val(e))
-#ifndef __ASSEMBLY__
/*
* The vmalloc and module area will always be on the topmost area of the
* kernel mapping. We reserve 128GB (64bit) for vmalloc and modules.
@@ -264,7 +220,7 @@ static inline int is_module_addr(void *addr)
*/
/* Bits in the segment/region table address-space-control-element */
-#define _ASCE_ORIGIN ~0xfffUL/* segment table origin */
+#define _ASCE_ORIGIN ~0xfffUL/* region/segment table origin */
#define _ASCE_PRIVATE_SPACE 0x100 /* private space control */
#define _ASCE_ALT_EVENT 0x80 /* storage alteration event control */
#define _ASCE_SPACE_SWITCH 0x40 /* space switch event */
@@ -296,8 +252,6 @@ static inline int is_module_addr(void *addr)
#define _REGION3_ENTRY_EMPTY (_REGION_ENTRY_TYPE_R3 | _REGION_ENTRY_INVALID)
#define _REGION3_ENTRY_ORIGIN_LARGE ~0x7fffffffUL /* large page address */
-#define _REGION3_ENTRY_ORIGIN ~0x7ffUL/* region third table origin */
-
#define _REGION3_ENTRY_DIRTY 0x2000 /* SW region dirty bit */
#define _REGION3_ENTRY_YOUNG 0x1000 /* SW region young bit */
#define _REGION3_ENTRY_LARGE 0x0400 /* RTTE-format control, large page */
@@ -310,16 +264,16 @@ static inline int is_module_addr(void *addr)
#define _REGION3_ENTRY_SOFT_DIRTY 0x0000 /* SW region soft dirty bit */
#endif
-#define _REGION_ENTRY_BITS 0xfffffffffffff227UL
-#define _REGION_ENTRY_BITS_LARGE 0xffffffff8000fe27UL
+#define _REGION_ENTRY_BITS 0xfffffffffffff22fUL
+#define _REGION_ENTRY_BITS_LARGE 0xffffffff8000fe2fUL
/* Bits in the segment table entry */
#define _SEGMENT_ENTRY_BITS 0xfffffffffffffe33UL
#define _SEGMENT_ENTRY_BITS_LARGE 0xfffffffffff0ff33UL
#define _SEGMENT_ENTRY_ORIGIN_LARGE ~0xfffffUL /* large page address */
-#define _SEGMENT_ENTRY_ORIGIN ~0x7ffUL/* segment table origin */
-#define _SEGMENT_ENTRY_PROTECT 0x200 /* page protection bit */
-#define _SEGMENT_ENTRY_NOEXEC 0x100 /* region no-execute bit */
+#define _SEGMENT_ENTRY_ORIGIN ~0x7ffUL/* page table origin */
+#define _SEGMENT_ENTRY_PROTECT 0x200 /* segment protection bit */
+#define _SEGMENT_ENTRY_NOEXEC 0x100 /* segment no-execute bit */
#define _SEGMENT_ENTRY_INVALID 0x20 /* invalid segment table entry */
#define _SEGMENT_ENTRY (0)
@@ -337,6 +291,54 @@ static inline int is_module_addr(void *addr)
#define _SEGMENT_ENTRY_SOFT_DIRTY 0x0000 /* SW segment soft dirty bit */
#endif
+#define _CRST_ENTRIES 2048 /* number of region/segment table entries */
+#define _PAGE_ENTRIES 256 /* number of page table entries */
+
+#define _CRST_TABLE_SIZE (_CRST_ENTRIES * 8)
+#define _PAGE_TABLE_SIZE (_PAGE_ENTRIES * 8)
+
+#define _REGION1_SHIFT 53
+#define _REGION2_SHIFT 42
+#define _REGION3_SHIFT 31
+#define _SEGMENT_SHIFT 20
+
+#define _REGION1_INDEX (0x7ffUL << _REGION1_SHIFT)
+#define _REGION2_INDEX (0x7ffUL << _REGION2_SHIFT)
+#define _REGION3_INDEX (0x7ffUL << _REGION3_SHIFT)
+#define _SEGMENT_INDEX (0x7ffUL << _SEGMENT_SHIFT)
+#define _PAGE_INDEX (0xffUL << _PAGE_SHIFT)
+
+#define _REGION1_SIZE (1UL << _REGION1_SHIFT)
+#define _REGION2_SIZE (1UL << _REGION2_SHIFT)
+#define _REGION3_SIZE (1UL << _REGION3_SHIFT)
+#define _SEGMENT_SIZE (1UL << _SEGMENT_SHIFT)
+
+#define _REGION1_MASK (~(_REGION1_SIZE - 1))
+#define _REGION2_MASK (~(_REGION2_SIZE - 1))
+#define _REGION3_MASK (~(_REGION3_SIZE - 1))
+#define _SEGMENT_MASK (~(_SEGMENT_SIZE - 1))
+
+#define PMD_SHIFT _SEGMENT_SHIFT
+#define PUD_SHIFT _REGION3_SHIFT
+#define P4D_SHIFT _REGION2_SHIFT
+#define PGDIR_SHIFT _REGION1_SHIFT
+
+#define PMD_SIZE _SEGMENT_SIZE
+#define PUD_SIZE _REGION3_SIZE
+#define P4D_SIZE _REGION2_SIZE
+#define PGDIR_SIZE _REGION1_SIZE
+
+#define PMD_MASK _SEGMENT_MASK
+#define PUD_MASK _REGION3_MASK
+#define P4D_MASK _REGION2_MASK
+#define PGDIR_MASK _REGION1_MASK
+
+#define PTRS_PER_PTE _PAGE_ENTRIES
+#define PTRS_PER_PMD _CRST_ENTRIES
+#define PTRS_PER_PUD _CRST_ENTRIES
+#define PTRS_PER_P4D _CRST_ENTRIES
+#define PTRS_PER_PGD _CRST_ENTRIES
+
/*
* Segment table and region3 table entry encoding
* (R = read-only, I = invalid, y = young bit):
@@ -373,6 +375,7 @@ static inline int is_module_addr(void *addr)
/* Guest Page State used for virtualization */
#define _PGSTE_GPS_ZERO 0x0000000080000000UL
+#define _PGSTE_GPS_NODAT 0x0000000040000000UL
#define _PGSTE_GPS_USAGE_MASK 0x0000000003000000UL
#define _PGSTE_GPS_USAGE_STABLE 0x0000000000000000UL
#define _PGSTE_GPS_USAGE_UNUSED 0x0000000001000000UL
@@ -502,7 +505,7 @@ static inline int mm_alloc_pgste(struct mm_struct *mm)
* In the case that a guest uses storage keys
* faults should no longer be backed by zero pages
*/
-#define mm_forbids_zeropage mm_use_skey
+#define mm_forbids_zeropage mm_has_pgste
static inline int mm_use_skey(struct mm_struct *mm)
{
#ifdef CONFIG_PGSTE
@@ -560,18 +563,23 @@ static inline void crdte(unsigned long old, unsigned long new,
}
/*
- * pgd/pmd/pte query functions
+ * pgd/p4d/pud/pmd/pte query functions
*/
+static inline int pgd_folded(pgd_t pgd)
+{
+ return (pgd_val(pgd) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R1;
+}
+
static inline int pgd_present(pgd_t pgd)
{
- if ((pgd_val(pgd) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R2)
+ if (pgd_folded(pgd))
return 1;
return (pgd_val(pgd) & _REGION_ENTRY_ORIGIN) != 0UL;
}
static inline int pgd_none(pgd_t pgd)
{
- if ((pgd_val(pgd) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R2)
+ if (pgd_folded(pgd))
return 0;
return (pgd_val(pgd) & _REGION_ENTRY_INVALID) != 0UL;
}
@@ -589,16 +597,48 @@ static inline int pgd_bad(pgd_t pgd)
return (pgd_val(pgd) & mask) != 0;
}
+static inline int p4d_folded(p4d_t p4d)
+{
+ return (p4d_val(p4d) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R2;
+}
+
+static inline int p4d_present(p4d_t p4d)
+{
+ if (p4d_folded(p4d))
+ return 1;
+ return (p4d_val(p4d) & _REGION_ENTRY_ORIGIN) != 0UL;
+}
+
+static inline int p4d_none(p4d_t p4d)
+{
+ if (p4d_folded(p4d))
+ return 0;
+ return p4d_val(p4d) == _REGION2_ENTRY_EMPTY;
+}
+
+static inline unsigned long p4d_pfn(p4d_t p4d)
+{
+ unsigned long origin_mask;
+
+ origin_mask = _REGION_ENTRY_ORIGIN;
+ return (p4d_val(p4d) & origin_mask) >> PAGE_SHIFT;
+}
+
+static inline int pud_folded(pud_t pud)
+{
+ return (pud_val(pud) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R3;
+}
+
static inline int pud_present(pud_t pud)
{
- if ((pud_val(pud) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R3)
+ if (pud_folded(pud))
return 1;
return (pud_val(pud) & _REGION_ENTRY_ORIGIN) != 0UL;
}
static inline int pud_none(pud_t pud)
{
- if ((pud_val(pud) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R3)
+ if (pud_folded(pud))
return 0;
return pud_val(pud) == _REGION3_ENTRY_EMPTY;
}
@@ -614,7 +654,7 @@ static inline unsigned long pud_pfn(pud_t pud)
{
unsigned long origin_mask;
- origin_mask = _REGION3_ENTRY_ORIGIN;
+ origin_mask = _REGION_ENTRY_ORIGIN;
if (pud_large(pud))
origin_mask = _REGION3_ENTRY_ORIGIN_LARGE;
return (pud_val(pud) & origin_mask) >> PAGE_SHIFT;
@@ -641,6 +681,13 @@ static inline int pud_bad(pud_t pud)
return (pud_val(pud) & ~_REGION_ENTRY_BITS) != 0;
}
+static inline int p4d_bad(p4d_t p4d)
+{
+ if ((p4d_val(p4d) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R2)
+ return pud_bad(__pud(p4d_val(p4d)));
+ return (p4d_val(p4d) & ~_REGION_ENTRY_BITS) != 0;
+}
+
static inline int pmd_present(pmd_t pmd)
{
return pmd_val(pmd) != _SEGMENT_ENTRY_EMPTY;
@@ -794,8 +841,14 @@ static inline int pte_unused(pte_t pte)
static inline void pgd_clear(pgd_t *pgd)
{
- if ((pgd_val(*pgd) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R2)
- pgd_val(*pgd) = _REGION2_ENTRY_EMPTY;
+ if ((pgd_val(*pgd) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R1)
+ pgd_val(*pgd) = _REGION1_ENTRY_EMPTY;
+}
+
+static inline void p4d_clear(p4d_t *p4d)
+{
+ if ((p4d_val(*p4d) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R2)
+ p4d_val(*p4d) = _REGION2_ENTRY_EMPTY;
}
static inline void pud_clear(pud_t *pud)
@@ -899,15 +952,30 @@ static inline pte_t pte_mkhuge(pte_t pte)
#define IPTE_GLOBAL 0
#define IPTE_LOCAL 1
-static inline void __ptep_ipte(unsigned long address, pte_t *ptep, int local)
+#define IPTE_NODAT 0x400
+#define IPTE_GUEST_ASCE 0x800
+
+static inline void __ptep_ipte(unsigned long address, pte_t *ptep,
+ unsigned long opt, unsigned long asce,
+ int local)
{
unsigned long pto = (unsigned long) ptep;
- /* Invalidation + TLB flush for the pte */
+ if (__builtin_constant_p(opt) && opt == 0) {
+ /* Invalidation + TLB flush for the pte */
+ asm volatile(
+ " .insn rrf,0xb2210000,%[r1],%[r2],0,%[m4]"
+ : "+m" (*ptep) : [r1] "a" (pto), [r2] "a" (address),
+ [m4] "i" (local));
+ return;
+ }
+
+ /* Invalidate ptes with options + TLB flush of the ptes */
+ opt = opt | (asce & _ASCE_ORIGIN);
asm volatile(
- " .insn rrf,0xb2210000,%[r1],%[r2],0,%[m4]"
- : "+m" (*ptep) : [r1] "a" (pto), [r2] "a" (address),
- [m4] "i" (local));
+ " .insn rrf,0xb2210000,%[r1],%[r2],%[r3],%[m4]"
+ : [r2] "+a" (address), [r3] "+a" (opt)
+ : [r1] "a" (pto), [m4] "i" (local) : "memory");
}
static inline void __ptep_ipte_range(unsigned long address, int nr,
@@ -1089,6 +1157,7 @@ static inline pte_t mk_pte(struct page *page, pgprot_t pgprot)
}
#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
+#define p4d_index(address) (((address) >> P4D_SHIFT) & (PTRS_PER_P4D-1))
#define pud_index(address) (((address) >> PUD_SHIFT) & (PTRS_PER_PUD-1))
#define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
#define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE-1))
@@ -1098,19 +1167,31 @@ static inline pte_t mk_pte(struct page *page, pgprot_t pgprot)
#define pmd_deref(pmd) (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN)
#define pud_deref(pud) (pud_val(pud) & _REGION_ENTRY_ORIGIN)
+#define p4d_deref(pud) (p4d_val(pud) & _REGION_ENTRY_ORIGIN)
#define pgd_deref(pgd) (pgd_val(pgd) & _REGION_ENTRY_ORIGIN)
-static inline pud_t *pud_offset(pgd_t *pgd, unsigned long address)
+static inline p4d_t *p4d_offset(pgd_t *pgd, unsigned long address)
+{
+ p4d_t *p4d = (p4d_t *) pgd;
+
+ if ((pgd_val(*pgd) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R1)
+ p4d = (p4d_t *) pgd_deref(*pgd);
+ return p4d + p4d_index(address);
+}
+
+static inline pud_t *pud_offset(p4d_t *p4d, unsigned long address)
{
- pud_t *pud = (pud_t *) pgd;
- if ((pgd_val(*pgd) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R2)
- pud = (pud_t *) pgd_deref(*pgd);
- return pud + pud_index(address);
+ pud_t *pud = (pud_t *) p4d;
+
+ if ((p4d_val(*p4d) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R2)
+ pud = (pud_t *) p4d_deref(*p4d);
+ return pud + pud_index(address);
}
static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
{
pmd_t *pmd = (pmd_t *) pud;
+
if ((pud_val(*pud) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R3)
pmd = (pmd_t *) pud_deref(*pud);
return pmd + pmd_index(address);
@@ -1122,6 +1203,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
#define pmd_page(pmd) pfn_to_page(pmd_pfn(pmd))
#define pud_page(pud) pfn_to_page(pud_pfn(pud))
+#define p4d_page(pud) pfn_to_page(p4d_pfn(p4d))
/* Find an entry in the lowest level page table.. */
#define pte_offset(pmd, addr) ((pte_t *) pmd_deref(*(pmd)) + pte_index(addr))
@@ -1274,31 +1356,61 @@ static inline void __pmdp_csp(pmd_t *pmdp)
#define IDTE_GLOBAL 0
#define IDTE_LOCAL 1
-static inline void __pmdp_idte(unsigned long address, pmd_t *pmdp, int local)
+#define IDTE_PTOA 0x0800
+#define IDTE_NODAT 0x1000
+#define IDTE_GUEST_ASCE 0x2000
+
+static inline void __pmdp_idte(unsigned long addr, pmd_t *pmdp,
+ unsigned long opt, unsigned long asce,
+ int local)
{
unsigned long sto;
- sto = (unsigned long) pmdp - pmd_index(address) * sizeof(pmd_t);
- asm volatile(
- " .insn rrf,0xb98e0000,%[r1],%[r2],0,%[m4]"
- : "+m" (*pmdp)
- : [r1] "a" (sto), [r2] "a" ((address & HPAGE_MASK)),
- [m4] "i" (local)
- : "cc" );
+ sto = (unsigned long) pmdp - pmd_index(addr) * sizeof(pmd_t);
+ if (__builtin_constant_p(opt) && opt == 0) {
+ /* flush without guest asce */
+ asm volatile(
+ " .insn rrf,0xb98e0000,%[r1],%[r2],0,%[m4]"
+ : "+m" (*pmdp)
+ : [r1] "a" (sto), [r2] "a" ((addr & HPAGE_MASK)),
+ [m4] "i" (local)
+ : "cc" );
+ } else {
+ /* flush with guest asce */
+ asm volatile(
+ " .insn rrf,0xb98e0000,%[r1],%[r2],%[r3],%[m4]"
+ : "+m" (*pmdp)
+ : [r1] "a" (sto), [r2] "a" ((addr & HPAGE_MASK) | opt),
+ [r3] "a" (asce), [m4] "i" (local)
+ : "cc" );
+ }
}
-static inline void __pudp_idte(unsigned long address, pud_t *pudp, int local)
+static inline void __pudp_idte(unsigned long addr, pud_t *pudp,
+ unsigned long opt, unsigned long asce,
+ int local)
{
unsigned long r3o;
- r3o = (unsigned long) pudp - pud_index(address) * sizeof(pud_t);
+ r3o = (unsigned long) pudp - pud_index(addr) * sizeof(pud_t);
r3o |= _ASCE_TYPE_REGION3;
- asm volatile(
- " .insn rrf,0xb98e0000,%[r1],%[r2],0,%[m4]"
- : "+m" (*pudp)
- : [r1] "a" (r3o), [r2] "a" ((address & PUD_MASK)),
- [m4] "i" (local)
- : "cc");
+ if (__builtin_constant_p(opt) && opt == 0) {
+ /* flush without guest asce */
+ asm volatile(
+ " .insn rrf,0xb98e0000,%[r1],%[r2],0,%[m4]"
+ : "+m" (*pudp)
+ : [r1] "a" (r3o), [r2] "a" ((addr & PUD_MASK)),
+ [m4] "i" (local)
+ : "cc");
+ } else {
+ /* flush with guest asce */
+ asm volatile(
+ " .insn rrf,0xb98e0000,%[r1],%[r2],%[r3],%[m4]"
+ : "+m" (*pudp)
+ : [r1] "a" (r3o), [r2] "a" ((addr & PUD_MASK) | opt),
+ [r3] "a" (asce), [m4] "i" (local)
+ : "cc" );
+ }
}
pmd_t pmdp_xchg_direct(struct mm_struct *, unsigned long, pmd_t *, pmd_t);
@@ -1395,7 +1507,9 @@ static inline pmd_t pmdp_huge_clear_flush(struct vm_area_struct *vma,
static inline void pmdp_invalidate(struct vm_area_struct *vma,
unsigned long addr, pmd_t *pmdp)
{
- pmdp_xchg_direct(vma->vm_mm, addr, pmdp, __pmd(_SEGMENT_ENTRY_EMPTY));
+ pmd_t pmd = __pmd(pmd_val(*pmdp) | _SEGMENT_ENTRY_INVALID);
+
+ pmdp_xchg_direct(vma->vm_mm, addr, pmdp, pmd);
}
#define __HAVE_ARCH_PMDP_SET_WRPROTECT
@@ -1481,8 +1595,6 @@ static inline swp_entry_t __swp_entry(unsigned long type, unsigned long offset)
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
-#endif /* !__ASSEMBLY__ */
-
#define kern_addr_valid(addr) (1)
extern int vmem_add_mapping(unsigned long start, unsigned long size);
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index aeac013968f2..c25d57e0aad3 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -20,6 +20,7 @@
#define CIF_FPU 4 /* restore FPU registers */
#define CIF_IGNORE_IRQ 5 /* ignore interrupt (for udelay) */
#define CIF_ENABLED_WAIT 6 /* in enabled wait state */
+#define CIF_MCCK_GUEST 7 /* machine check happening in guest */
#define _CIF_MCCK_PENDING _BITUL(CIF_MCCK_PENDING)
#define _CIF_ASCE_PRIMARY _BITUL(CIF_ASCE_PRIMARY)
@@ -28,6 +29,7 @@
#define _CIF_FPU _BITUL(CIF_FPU)
#define _CIF_IGNORE_IRQ _BITUL(CIF_IGNORE_IRQ)
#define _CIF_ENABLED_WAIT _BITUL(CIF_ENABLED_WAIT)
+#define _CIF_MCCK_GUEST _BITUL(CIF_MCCK_GUEST)
#ifndef __ASSEMBLY__
@@ -92,11 +94,11 @@ extern void execve_tail(void);
*/
#define TASK_SIZE_OF(tsk) (test_tsk_thread_flag(tsk, TIF_31BIT) ? \
- (1UL << 31) : (1UL << 53))
+ (1UL << 31) : -PAGE_SIZE)
#define TASK_UNMAPPED_BASE (test_thread_flag(TIF_31BIT) ? \
(1UL << 30) : (1UL << 41))
#define TASK_SIZE TASK_SIZE_OF(current)
-#define TASK_SIZE_MAX (1UL << 53)
+#define TASK_SIZE_MAX (-PAGE_SIZE)
#define STACK_TOP (test_thread_flag(TIF_31BIT) ? \
(1UL << 31) : (1UL << 42))
diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h
index 99bc456cc26a..853b01245c20 100644
--- a/arch/s390/include/asm/ptrace.h
+++ b/arch/s390/include/asm/ptrace.h
@@ -11,9 +11,11 @@
#define PIF_SYSCALL 0 /* inside a system call */
#define PIF_PER_TRAP 1 /* deliver sigtrap on return to user */
+#define PIF_SYSCALL_RESTART 2 /* restart the current system call */
#define _PIF_SYSCALL _BITUL(PIF_SYSCALL)
#define _PIF_PER_TRAP _BITUL(PIF_PER_TRAP)
+#define _PIF_SYSCALL_RESTART _BITUL(PIF_SYSCALL_RESTART)
#ifndef __ASSEMBLY__
@@ -24,38 +26,38 @@
PSW_MASK_PSTATE | PSW_ASC_PRIMARY)
struct psw_bits {
- unsigned long : 1;
- unsigned long r : 1; /* PER-Mask */
- unsigned long : 3;
- unsigned long t : 1; /* DAT Mode */
- unsigned long i : 1; /* Input/Output Mask */
- unsigned long e : 1; /* External Mask */
- unsigned long key : 4; /* PSW Key */
- unsigned long : 1;
- unsigned long m : 1; /* Machine-Check Mask */
- unsigned long w : 1; /* Wait State */
- unsigned long p : 1; /* Problem State */
- unsigned long as : 2; /* Address Space Control */
- unsigned long cc : 2; /* Condition Code */
- unsigned long pm : 4; /* Program Mask */
- unsigned long ri : 1; /* Runtime Instrumentation */
- unsigned long : 6;
- unsigned long eaba : 2; /* Addressing Mode */
- unsigned long : 31;
- unsigned long ia : 64; /* Instruction Address */
+ unsigned long : 1;
+ unsigned long per : 1; /* PER-Mask */
+ unsigned long : 3;
+ unsigned long dat : 1; /* DAT Mode */
+ unsigned long io : 1; /* Input/Output Mask */
+ unsigned long ext : 1; /* External Mask */
+ unsigned long key : 4; /* PSW Key */
+ unsigned long : 1;
+ unsigned long mcheck : 1; /* Machine-Check Mask */
+ unsigned long wait : 1; /* Wait State */
+ unsigned long pstate : 1; /* Problem State */
+ unsigned long as : 2; /* Address Space Control */
+ unsigned long cc : 2; /* Condition Code */
+ unsigned long pm : 4; /* Program Mask */
+ unsigned long ri : 1; /* Runtime Instrumentation */
+ unsigned long : 6;
+ unsigned long eaba : 2; /* Addressing Mode */
+ unsigned long : 31;
+ unsigned long ia : 64; /* Instruction Address */
};
enum {
- PSW_AMODE_24BIT = 0,
- PSW_AMODE_31BIT = 1,
- PSW_AMODE_64BIT = 3
+ PSW_BITS_AMODE_24BIT = 0,
+ PSW_BITS_AMODE_31BIT = 1,
+ PSW_BITS_AMODE_64BIT = 3
};
enum {
- PSW_AS_PRIMARY = 0,
- PSW_AS_ACCREG = 1,
- PSW_AS_SECONDARY = 2,
- PSW_AS_HOME = 3
+ PSW_BITS_AS_PRIMARY = 0,
+ PSW_BITS_AS_ACCREG = 1,
+ PSW_BITS_AS_SECONDARY = 2,
+ PSW_BITS_AS_HOME = 3
};
#define psw_bits(__psw) (*({ \
diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h
index 998b61cd0e56..eaee69e7c42a 100644
--- a/arch/s390/include/asm/qdio.h
+++ b/arch/s390/include/asm/qdio.h
@@ -80,7 +80,7 @@ struct qdr {
u32 qkey : 4;
u32 : 28;
struct qdesfmt0 qdf0[126];
-} __attribute__ ((packed, aligned(4096)));
+} __packed __aligned(PAGE_SIZE);
#define QIB_AC_OUTBOUND_PCI_SUPPORTED 0x40
#define QIB_RFLAGS_ENABLE_QEBSM 0x80
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index cd78155b1829..490e035b3716 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -29,8 +29,10 @@
#define MACHINE_FLAG_TE _BITUL(11)
#define MACHINE_FLAG_TLB_LC _BITUL(12)
#define MACHINE_FLAG_VX _BITUL(13)
-#define MACHINE_FLAG_NX _BITUL(14)
-#define MACHINE_FLAG_GS _BITUL(15)
+#define MACHINE_FLAG_TLB_GUEST _BITUL(14)
+#define MACHINE_FLAG_NX _BITUL(15)
+#define MACHINE_FLAG_GS _BITUL(16)
+#define MACHINE_FLAG_SCC _BITUL(17)
#define LPP_MAGIC _BITUL(31)
#define LPP_PFAULT_PID_MASK _AC(0xffffffff, UL)
@@ -68,8 +70,10 @@ extern void detect_memory_memblock(void);
#define MACHINE_HAS_TE (S390_lowcore.machine_flags & MACHINE_FLAG_TE)
#define MACHINE_HAS_TLB_LC (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_LC)
#define MACHINE_HAS_VX (S390_lowcore.machine_flags & MACHINE_FLAG_VX)
+#define MACHINE_HAS_TLB_GUEST (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_GUEST)
#define MACHINE_HAS_NX (S390_lowcore.machine_flags & MACHINE_FLAG_NX)
#define MACHINE_HAS_GS (S390_lowcore.machine_flags & MACHINE_FLAG_GS)
+#define MACHINE_HAS_SCC (S390_lowcore.machine_flags & MACHINE_FLAG_SCC)
/*
* Console mode. Override with conmode=
@@ -104,9 +108,16 @@ extern void pfault_fini(void);
#define pfault_fini() do { } while (0)
#endif /* CONFIG_PFAULT */
+#ifdef CONFIG_VMCP
+void vmcp_cma_reserve(void);
+#else
+static inline void vmcp_cma_reserve(void) { }
+#endif
+
void report_user_fault(struct pt_regs *regs, long signr, int is_mm_fault);
-extern void cmma_init(void);
+void cmma_init(void);
+void cmma_init_nodat(void);
extern void (*_machine_restart)(char *command);
extern void (*_machine_halt)(void);
diff --git a/arch/s390/include/asm/sigp.h b/arch/s390/include/asm/sigp.h
index 72df5f2de6b0..020a8814d511 100644
--- a/arch/s390/include/asm/sigp.h
+++ b/arch/s390/include/asm/sigp.h
@@ -59,7 +59,7 @@ static inline int __pcpu_sigp(u16 addr, u8 order, unsigned long parm,
int cc;
cc = ____pcpu_sigp(addr, order, parm, &_status);
- if (status && cc == 1)
+ if (status && cc == SIGP_CC_STATUS_STORED)
*status = _status;
return cc;
}
diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h
index f7838ecd83c6..8182b521c42f 100644
--- a/arch/s390/include/asm/spinlock.h
+++ b/arch/s390/include/asm/spinlock.h
@@ -92,17 +92,11 @@ static inline void arch_spin_unlock(arch_spinlock_t *lp)
{
typecheck(int, lp->lock);
asm volatile(
- "st %1,%0\n"
- : "+Q" (lp->lock)
- : "d" (0)
- : "cc", "memory");
-}
-
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- while (arch_spin_is_locked(lock))
- arch_spin_relax(lock);
- smp_acquire__after_ctrl_dep();
+#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES
+ " .long 0xb2fa0070\n" /* NIAI 7 */
+#endif
+ " st %1,%0\n"
+ : "=Q" (lp->lock) : "d" (0) : "cc", "memory");
}
/*
diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h
index 6ba0bf928909..6bc941be6921 100644
--- a/arch/s390/include/asm/syscall.h
+++ b/arch/s390/include/asm/syscall.h
@@ -64,6 +64,12 @@ static inline void syscall_get_arguments(struct task_struct *task,
{
unsigned long mask = -1UL;
+ /*
+ * No arguments for this syscall, there's nothing to do.
+ */
+ if (!n)
+ return;
+
BUG_ON(i + n > 6);
#ifdef CONFIG_COMPAT
if (test_tsk_thread_flag(task, TIF_31BIT))
diff --git a/arch/s390/include/asm/sysinfo.h b/arch/s390/include/asm/sysinfo.h
index e784bed6ed7f..2b498e58b914 100644
--- a/arch/s390/include/asm/sysinfo.h
+++ b/arch/s390/include/asm/sysinfo.h
@@ -109,7 +109,7 @@ struct sysinfo_2_2_2 {
unsigned short cpus_shared;
char reserved_4[3];
unsigned char vsne;
- uuid_be uuid;
+ uuid_t uuid;
char reserved_5[160];
char ext_name[256];
};
@@ -134,7 +134,7 @@ struct sysinfo_3_2_2 {
char reserved_1[3];
unsigned char evmne;
unsigned int reserved_2;
- uuid_be uuid;
+ uuid_t uuid;
} vm[8];
char reserved_3[1504];
char ext_names[8][256];
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index 0b3ee083a665..1aecf432c48d 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -58,6 +58,7 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
#define TIF_UPROBE 3 /* breakpointed or single-stepping */
#define TIF_GUARDED_STORAGE 4 /* load guarded storage control block */
#define TIF_PATCH_PENDING 5 /* pending live patching update */
+#define TIF_PGSTE 6 /* New mm's will use 4K page tables */
#define TIF_31BIT 16 /* 32bit process */
#define TIF_MEMDIE 17 /* is terminating due to OOM killer */
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h
index 118535123f34..93f2eb3f277c 100644
--- a/arch/s390/include/asm/timex.h
+++ b/arch/s390/include/asm/timex.h
@@ -15,6 +15,8 @@
/* The value of the TOD clock for 1.1.1970. */
#define TOD_UNIX_EPOCH 0x7d91048bca000000ULL
+extern u64 clock_comparator_max;
+
/* Inline functions for clock register access. */
static inline int set_tod_clock(__u64 time)
{
@@ -126,7 +128,7 @@ static inline unsigned long long local_tick_disable(void)
unsigned long long old;
old = S390_lowcore.clock_comparator;
- S390_lowcore.clock_comparator = -1ULL;
+ S390_lowcore.clock_comparator = clock_comparator_max;
set_clock_comparator(S390_lowcore.clock_comparator);
return old;
}
@@ -174,24 +176,24 @@ static inline cycles_t get_cycles(void)
return (cycles_t) get_tod_clock() >> 2;
}
-int get_phys_clock(unsigned long long *clock);
+int get_phys_clock(unsigned long *clock);
void init_cpu_timer(void);
unsigned long long monotonic_clock(void);
-extern u64 sched_clock_base_cc;
+extern unsigned char tod_clock_base[16] __aligned(8);
/**
* get_clock_monotonic - returns current time in clock rate units
*
* The caller must ensure that preemption is disabled.
- * The clock and sched_clock_base get changed via stop_machine.
+ * The clock and tod_clock_base get changed via stop_machine.
* Therefore preemption must be disabled when calling this
* function, otherwise the returned value is not guaranteed to
* be monotonic.
*/
static inline unsigned long long get_tod_clock_monotonic(void)
{
- return get_tod_clock() - sched_clock_base_cc;
+ return get_tod_clock() - *(unsigned long long *) &tod_clock_base[1];
}
/**
@@ -218,4 +220,32 @@ static inline unsigned long long tod_to_ns(unsigned long long todval)
return ((todval >> 9) * 125) + (((todval & 0x1ff) * 125) >> 9);
}
+/**
+ * tod_after - compare two 64 bit TOD values
+ * @a: first 64 bit TOD timestamp
+ * @b: second 64 bit TOD timestamp
+ *
+ * Returns: true if a is later than b
+ */
+static inline int tod_after(unsigned long long a, unsigned long long b)
+{
+ if (MACHINE_HAS_SCC)
+ return (long long) a > (long long) b;
+ return a > b;
+}
+
+/**
+ * tod_after_eq - compare two 64 bit TOD values
+ * @a: first 64 bit TOD timestamp
+ * @b: second 64 bit TOD timestamp
+ *
+ * Returns: true if a is later than b
+ */
+static inline int tod_after_eq(unsigned long long a, unsigned long long b)
+{
+ if (MACHINE_HAS_SCC)
+ return (long long) a >= (long long) b;
+ return a >= b;
+}
+
#endif
diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h
index 853b2a3d8dee..3a14b864b2e3 100644
--- a/arch/s390/include/asm/tlb.h
+++ b/arch/s390/include/asm/tlb.h
@@ -47,10 +47,9 @@ struct mmu_table_batch {
extern void tlb_table_flush(struct mmu_gather *tlb);
extern void tlb_remove_table(struct mmu_gather *tlb, void *table);
-static inline void tlb_gather_mmu(struct mmu_gather *tlb,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end)
+static inline void
+arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
+ unsigned long start, unsigned long end)
{
tlb->mm = mm;
tlb->start = start;
@@ -76,9 +75,15 @@ static inline void tlb_flush_mmu(struct mmu_gather *tlb)
tlb_flush_mmu_free(tlb);
}
-static inline void tlb_finish_mmu(struct mmu_gather *tlb,
- unsigned long start, unsigned long end)
+static inline void
+arch_tlb_finish_mmu(struct mmu_gather *tlb,
+ unsigned long start, unsigned long end, bool force)
{
+ if (force) {
+ tlb->start = start;
+ tlb->end = end;
+ }
+
tlb_flush_mmu(tlb);
}
@@ -130,13 +135,28 @@ static inline void pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
unsigned long address)
{
- if (tlb->mm->context.asce_limit <= (1UL << 31))
+ if (tlb->mm->context.asce_limit <= _REGION3_SIZE)
return;
pgtable_pmd_page_dtor(virt_to_page(pmd));
tlb_remove_table(tlb, pmd);
}
/*
+ * p4d_free_tlb frees a pud table and clears the CRSTE for the
+ * region second table entry from the tlb.
+ * If the mm uses a four level page table the single p4d is freed
+ * as the pgd. p4d_free_tlb checks the asce_limit against 8PB
+ * to avoid the double free of the p4d in this case.
+ */
+static inline void p4d_free_tlb(struct mmu_gather *tlb, p4d_t *p4d,
+ unsigned long address)
+{
+ if (tlb->mm->context.asce_limit <= _REGION1_SIZE)
+ return;
+ tlb_remove_table(tlb, p4d);
+}
+
+/*
* pud_free_tlb frees a pud table and clears the CRSTE for the
* region third table entry from the tlb.
* If the mm uses a three level page table the single pud is freed
@@ -146,7 +166,7 @@ static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
static inline void pud_free_tlb(struct mmu_gather *tlb, pud_t *pud,
unsigned long address)
{
- if (tlb->mm->context.asce_limit <= (1UL << 42))
+ if (tlb->mm->context.asce_limit <= _REGION2_SIZE)
return;
tlb_remove_table(tlb, pud);
}
diff --git a/arch/s390/include/asm/tlbflush.h b/arch/s390/include/asm/tlbflush.h
index 39846100682a..b08d5bc2666e 100644
--- a/arch/s390/include/asm/tlbflush.h
+++ b/arch/s390/include/asm/tlbflush.h
@@ -20,10 +20,15 @@ static inline void __tlb_flush_local(void)
*/
static inline void __tlb_flush_idte(unsigned long asce)
{
+ unsigned long opt;
+
+ opt = IDTE_PTOA;
+ if (MACHINE_HAS_TLB_GUEST)
+ opt |= IDTE_GUEST_ASCE;
/* Global TLB flush for the mm */
asm volatile(
" .insn rrf,0xb98e0000,0,%0,%1,0"
- : : "a" (2048), "a" (asce) : "cc");
+ : : "a" (opt), "a" (asce) : "cc");
}
#ifdef CONFIG_SMP
@@ -43,23 +48,6 @@ static inline void __tlb_flush_global(void)
* Flush TLB entries for a specific mm on all CPUs (in case gmap is used
* this implicates multiple ASCEs!).
*/
-static inline void __tlb_flush_full(struct mm_struct *mm)
-{
- preempt_disable();
- atomic_inc(&mm->context.flush_count);
- if (cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id()))) {
- /* Local TLB flush */
- __tlb_flush_local();
- } else {
- /* Global TLB flush */
- __tlb_flush_global();
- /* Reset TLB flush mask */
- cpumask_copy(mm_cpumask(mm), &mm->context.cpu_attach_mask);
- }
- atomic_dec(&mm->context.flush_count);
- preempt_enable();
-}
-
static inline void __tlb_flush_mm(struct mm_struct *mm)
{
unsigned long gmap_asce;
@@ -71,16 +59,18 @@ static inline void __tlb_flush_mm(struct mm_struct *mm)
*/
preempt_disable();
atomic_inc(&mm->context.flush_count);
+ /* Reset TLB flush mask */
+ cpumask_copy(mm_cpumask(mm), &mm->context.cpu_attach_mask);
+ barrier();
gmap_asce = READ_ONCE(mm->context.gmap_asce);
if (MACHINE_HAS_IDTE && gmap_asce != -1UL) {
if (gmap_asce)
__tlb_flush_idte(gmap_asce);
__tlb_flush_idte(mm->context.asce);
} else {
- __tlb_flush_full(mm);
+ /* Global TLB flush */
+ __tlb_flush_global();
}
- /* Reset TLB flush mask */
- cpumask_copy(mm_cpumask(mm), &mm->context.cpu_attach_mask);
atomic_dec(&mm->context.flush_count);
preempt_enable();
}
@@ -94,7 +84,6 @@ static inline void __tlb_flush_kernel(void)
}
#else
#define __tlb_flush_global() __tlb_flush_local()
-#define __tlb_flush_full(mm) __tlb_flush_local()
/*
* Flush TLB entries for a specific ASCE on all CPUs.
@@ -112,10 +101,12 @@ static inline void __tlb_flush_kernel(void)
static inline void __tlb_flush_mm_lazy(struct mm_struct * mm)
{
+ spin_lock(&mm->context.lock);
if (mm->context.flush_mm) {
- __tlb_flush_mm(mm);
mm->context.flush_mm = 0;
+ __tlb_flush_mm(mm);
}
+ spin_unlock(&mm->context.lock);
}
/*
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
index fa1bfce10370..5222da162b69 100644
--- a/arch/s390/include/asm/topology.h
+++ b/arch/s390/include/asm/topology.h
@@ -77,12 +77,6 @@ static inline const struct cpumask *cpumask_of_node(int node)
return &node_to_cpumask_map[node];
}
-/*
- * Returns the number of the node containing node 'node'. This
- * architecture is flat, so it is a pretty simple function!
- */
-#define parent_node(node) (node)
-
#define pcibus_to_node(bus) __pcibus_to_node(bus)
#define node_distance(a, b) __node_distance(a, b)
diff --git a/arch/s390/include/asm/types.h b/arch/s390/include/asm/types.h
deleted file mode 100644
index 6740f4f9781f..000000000000
--- a/arch/s390/include/asm/types.h
+++ /dev/null
@@ -1,11 +0,0 @@
-/*
- * S390 version
- *
- * Derived from "include/asm-i386/types.h"
- */
-#ifndef _S390_TYPES_H
-#define _S390_TYPES_H
-
-#include <uapi/asm/types.h>
-
-#endif /* _S390_TYPES_H */
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
index 78f3f093d143..304cfe44df50 100644
--- a/arch/s390/include/asm/uaccess.h
+++ b/arch/s390/include/asm/uaccess.h
@@ -249,9 +249,6 @@ int __put_user_bad(void) __attribute__((noreturn));
int __get_user_bad(void) __attribute__((noreturn));
-#define __put_user_unaligned __put_user
-#define __get_user_unaligned __get_user
-
unsigned long __must_check
raw_copy_in_user(void __user *to, const void __user *from, unsigned long n);
@@ -276,23 +273,6 @@ static inline unsigned long strnlen_user(const char __user *src, unsigned long n
return __strnlen_user(src, n);
}
-/**
- * strlen_user: - Get the size of a string in user space.
- * @str: The string to measure.
- *
- * Context: User context only. This function may sleep if pagefaults are
- * enabled.
- *
- * Get the size of a NUL-terminated string in user space.
- *
- * Returns the size of the string INCLUDING the terminating NUL.
- * On exception, returns 0.
- *
- * If there is a limit on the length of a valid string, you may wish to
- * consider using strnlen_user() instead.
- */
-#define strlen_user(str) strnlen_user(str, ~0UL)
-
/*
* Zero Userspace
*/
diff --git a/arch/s390/include/asm/unaligned.h b/arch/s390/include/asm/unaligned.h
deleted file mode 100644
index da9627afe5d8..000000000000
--- a/arch/s390/include/asm/unaligned.h
+++ /dev/null
@@ -1,13 +0,0 @@
-#ifndef _ASM_S390_UNALIGNED_H
-#define _ASM_S390_UNALIGNED_H
-
-/*
- * The S390 can do unaligned accesses itself.
- */
-#include <linux/unaligned/access_ok.h>
-#include <linux/unaligned/generic.h>
-
-#define get_unaligned __get_unaligned_be
-#define put_unaligned __put_unaligned_be
-
-#endif /* _ASM_S390_UNALIGNED_H */
diff --git a/arch/s390/include/uapi/asm/Kbuild b/arch/s390/include/uapi/asm/Kbuild
index ca62066895e0..098f28778a13 100644
--- a/arch/s390/include/uapi/asm/Kbuild
+++ b/arch/s390/include/uapi/asm/Kbuild
@@ -9,4 +9,5 @@ generic-y += param.h
generic-y += poll.h
generic-y += resource.h
generic-y += sockios.h
+generic-y += swab.h
generic-y += termbits.h
diff --git a/arch/s390/include/uapi/asm/dasd.h b/arch/s390/include/uapi/asm/dasd.h
index 1340311dab77..ab5797cdc1b7 100644
--- a/arch/s390/include/uapi/asm/dasd.h
+++ b/arch/s390/include/uapi/asm/dasd.h
@@ -72,7 +72,10 @@ typedef struct dasd_information2_t {
* 0x02: use diag discipline (diag)
* 0x04: set the device initially online (internal use only)
* 0x08: enable ERP related logging
- * 0x20: give access to raw eckd data
+ * 0x10: allow I/O to fail on lost paths
+ * 0x20: allow I/O to fail when a lock was stolen
+ * 0x40: give access to raw eckd data
+ * 0x80: enable discard support
*/
#define DASD_FEATURE_DEFAULT 0x00
#define DASD_FEATURE_READONLY 0x01
@@ -82,6 +85,7 @@ typedef struct dasd_information2_t {
#define DASD_FEATURE_FAILFAST 0x10
#define DASD_FEATURE_FAILONSLCK 0x20
#define DASD_FEATURE_USERAW 0x40
+#define DASD_FEATURE_DISCARD 0x80
#define DASD_PARTN_BITS 2
diff --git a/arch/s390/include/uapi/asm/kvm.h b/arch/s390/include/uapi/asm/kvm.h
index 3dd2a1d308dd..cd7359e23d86 100644
--- a/arch/s390/include/uapi/asm/kvm.h
+++ b/arch/s390/include/uapi/asm/kvm.h
@@ -28,6 +28,7 @@
#define KVM_DEV_FLIC_CLEAR_IO_IRQ 8
#define KVM_DEV_FLIC_AISM 9
#define KVM_DEV_FLIC_AIRQ_INJECT 10
+#define KVM_DEV_FLIC_AISM_ALL 11
/*
* We can have up to 4*64k pending subchannels + 8 adapter interrupts,
* as well as up to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts.
@@ -53,6 +54,11 @@ struct kvm_s390_ais_req {
__u16 mode;
};
+struct kvm_s390_ais_all {
+ __u8 simm;
+ __u8 nimm;
+};
+
#define KVM_S390_IO_ADAPTER_MASK 1
#define KVM_S390_IO_ADAPTER_MAP 2
#define KVM_S390_IO_ADAPTER_UNMAP 3
@@ -70,6 +76,7 @@ struct kvm_s390_io_adapter_req {
#define KVM_S390_VM_TOD 1
#define KVM_S390_VM_CRYPTO 2
#define KVM_S390_VM_CPU_MODEL 3
+#define KVM_S390_VM_MIGRATION 4
/* kvm attributes for mem_ctrl */
#define KVM_S390_VM_MEM_ENABLE_CMMA 0
@@ -81,6 +88,12 @@ struct kvm_s390_io_adapter_req {
/* kvm attributes for KVM_S390_VM_TOD */
#define KVM_S390_VM_TOD_LOW 0
#define KVM_S390_VM_TOD_HIGH 1
+#define KVM_S390_VM_TOD_EXT 2
+
+struct kvm_s390_vm_tod_clock {
+ __u8 epoch_idx;
+ __u64 tod;
+};
/* kvm attributes for KVM_S390_VM_CPU_MODEL */
/* processor related attributes are r/w */
@@ -151,6 +164,11 @@ struct kvm_s390_vm_cpu_subfunc {
#define KVM_S390_VM_CRYPTO_DISABLE_AES_KW 2
#define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW 3
+/* kvm attributes for migration mode */
+#define KVM_S390_VM_MIGRATION_STOP 0
+#define KVM_S390_VM_MIGRATION_START 1
+#define KVM_S390_VM_MIGRATION_STATUS 2
+
/* for KVM_GET_REGS and KVM_SET_REGS */
struct kvm_regs {
/* general purpose regs for s390 */
diff --git a/arch/s390/include/uapi/asm/socket.h b/arch/s390/include/uapi/asm/socket.h
index e8e5ecf673fd..a56916c83565 100644
--- a/arch/s390/include/uapi/asm/socket.h
+++ b/arch/s390/include/uapi/asm/socket.h
@@ -104,4 +104,10 @@
#define SO_COOKIE 57
+#define SCM_TIMESTAMPING_PKTINFO 58
+
+#define SO_PEERGROUPS 59
+
+#define SO_ZEROCOPY 60
+
#endif /* _ASM_SOCKET_H */
diff --git a/arch/s390/include/uapi/asm/swab.h b/arch/s390/include/uapi/asm/swab.h
deleted file mode 100644
index da3bfe5cc161..000000000000
--- a/arch/s390/include/uapi/asm/swab.h
+++ /dev/null
@@ -1,89 +0,0 @@
-#ifndef _S390_SWAB_H
-#define _S390_SWAB_H
-
-/*
- * S390 version
- * Copyright IBM Corp. 1999
- * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
- */
-
-#include <linux/types.h>
-
-#ifndef __s390x__
-# define __SWAB_64_THRU_32__
-#endif
-
-#ifdef __s390x__
-static inline __u64 __arch_swab64p(const __u64 *x)
-{
- __u64 result;
-
- asm volatile("lrvg %0,%1" : "=d" (result) : "m" (*x));
- return result;
-}
-#define __arch_swab64p __arch_swab64p
-
-static inline __u64 __arch_swab64(__u64 x)
-{
- __u64 result;
-
- asm volatile("lrvgr %0,%1" : "=d" (result) : "d" (x));
- return result;
-}
-#define __arch_swab64 __arch_swab64
-
-static inline void __arch_swab64s(__u64 *x)
-{
- *x = __arch_swab64p(x);
-}
-#define __arch_swab64s __arch_swab64s
-#endif /* __s390x__ */
-
-static inline __u32 __arch_swab32p(const __u32 *x)
-{
- __u32 result;
-
- asm volatile(
-#ifndef __s390x__
- " icm %0,8,%O1+3(%R1)\n"
- " icm %0,4,%O1+2(%R1)\n"
- " icm %0,2,%O1+1(%R1)\n"
- " ic %0,%1"
- : "=&d" (result) : "Q" (*x) : "cc");
-#else /* __s390x__ */
- " lrv %0,%1"
- : "=d" (result) : "m" (*x));
-#endif /* __s390x__ */
- return result;
-}
-#define __arch_swab32p __arch_swab32p
-
-#ifdef __s390x__
-static inline __u32 __arch_swab32(__u32 x)
-{
- __u32 result;
-
- asm volatile("lrvr %0,%1" : "=d" (result) : "d" (x));
- return result;
-}
-#define __arch_swab32 __arch_swab32
-#endif /* __s390x__ */
-
-static inline __u16 __arch_swab16p(const __u16 *x)
-{
- __u16 result;
-
- asm volatile(
-#ifndef __s390x__
- " icm %0,2,%O1+1(%R1)\n"
- " ic %0,%1\n"
- : "=&d" (result) : "Q" (*x) : "cc");
-#else /* __s390x__ */
- " lrvh %0,%1"
- : "=d" (result) : "m" (*x));
-#endif /* __s390x__ */
- return result;
-}
-#define __arch_swab16p __arch_swab16p
-
-#endif /* _S390_SWAB_H */
diff --git a/arch/s390/include/uapi/asm/vmcp.h b/arch/s390/include/uapi/asm/vmcp.h
new file mode 100644
index 000000000000..4caf71714a55
--- /dev/null
+++ b/arch/s390/include/uapi/asm/vmcp.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright IBM Corp. 2004, 2005
+ * Interface implementation for communication with the z/VM control program
+ * Version 1.0
+ * Author(s): Christian Borntraeger <cborntra@de.ibm.com>
+ *
+ *
+ * z/VMs CP offers the possibility to issue commands via the diagnose code 8
+ * this driver implements a character device that issues these commands and
+ * returns the answer of CP.
+ *
+ * The idea of this driver is based on cpint from Neale Ferguson
+ */
+
+#ifndef _UAPI_ASM_VMCP_H
+#define _UAPI_ASM_VMCP_H
+
+#include <linux/ioctl.h>
+
+#define VMCP_GETCODE _IOR(0x10, 1, int)
+#define VMCP_SETBUF _IOW(0x10, 2, int)
+#define VMCP_GETSIZE _IOR(0x10, 3, int)
+
+#endif /* _UAPI_ASM_VMCP_H */
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index 6bb29633e1f1..3d42f91c95fd 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -58,6 +58,9 @@ int main(void)
OFFSET(__SF_BACKCHAIN, stack_frame, back_chain);
OFFSET(__SF_GPRS, stack_frame, gprs);
OFFSET(__SF_EMPTY, stack_frame, empty1);
+ OFFSET(__SF_SIE_CONTROL, stack_frame, empty1[0]);
+ OFFSET(__SF_SIE_SAVEAREA, stack_frame, empty1[1]);
+ OFFSET(__SF_SIE_REASON, stack_frame, empty1[2]);
BLANK();
/* timeval/timezone offsets for use by vdso */
OFFSET(__VDSO_UPD_COUNT, vdso_data, tb_update_count);
@@ -155,6 +158,7 @@ int main(void)
OFFSET(__LC_LAST_UPDATE_CLOCK, lowcore, last_update_clock);
OFFSET(__LC_INT_CLOCK, lowcore, int_clock);
OFFSET(__LC_MCCK_CLOCK, lowcore, mcck_clock);
+ OFFSET(__LC_BOOT_CLOCK, lowcore, boot_clock);
OFFSET(__LC_CURRENT, lowcore, current_task);
OFFSET(__LC_KERNEL_STACK, lowcore, kernel_stack);
OFFSET(__LC_ASYNC_STACK, lowcore, async_stack);
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index c620049c61f2..f549c4657376 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -75,35 +75,34 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
at the same time. */
err = __put_user(from->si_signo, &to->si_signo);
err |= __put_user(from->si_errno, &to->si_errno);
- err |= __put_user((short)from->si_code, &to->si_code);
+ err |= __put_user(from->si_code, &to->si_code);
if (from->si_code < 0)
err |= __copy_to_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE);
else {
- switch (from->si_code >> 16) {
- case __SI_RT >> 16: /* This is not generated by the kernel as of now. */
- case __SI_MESGQ >> 16:
+ switch (siginfo_layout(from->si_signo, from->si_code)) {
+ case SIL_RT:
err |= __put_user(from->si_int, &to->si_int);
/* fallthrough */
- case __SI_KILL >> 16:
+ case SIL_KILL:
err |= __put_user(from->si_pid, &to->si_pid);
err |= __put_user(from->si_uid, &to->si_uid);
break;
- case __SI_CHLD >> 16:
+ case SIL_CHLD:
err |= __put_user(from->si_pid, &to->si_pid);
err |= __put_user(from->si_uid, &to->si_uid);
err |= __put_user(from->si_utime, &to->si_utime);
err |= __put_user(from->si_stime, &to->si_stime);
err |= __put_user(from->si_status, &to->si_status);
break;
- case __SI_FAULT >> 16:
+ case SIL_FAULT:
err |= __put_user((unsigned long) from->si_addr,
&to->si_addr);
break;
- case __SI_POLL >> 16:
+ case SIL_POLL:
err |= __put_user(from->si_band, &to->si_band);
err |= __put_user(from->si_fd, &to->si_fd);
break;
- case __SI_TIMER >> 16:
+ case SIL_TIMER:
err |= __put_user(from->si_tid, &to->si_tid);
err |= __put_user(from->si_overrun, &to->si_overrun);
err |= __put_user(from->si_int, &to->si_int);
@@ -127,32 +126,31 @@ int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from)
if (to->si_code < 0)
err |= __copy_from_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE);
else {
- switch (to->si_code >> 16) {
- case __SI_RT >> 16: /* This is not generated by the kernel as of now. */
- case __SI_MESGQ >> 16:
+ switch (siginfo_layout(to->si_signo, to->si_code)) {
+ case SIL_RT:
err |= __get_user(to->si_int, &from->si_int);
/* fallthrough */
- case __SI_KILL >> 16:
+ case SIL_KILL:
err |= __get_user(to->si_pid, &from->si_pid);
err |= __get_user(to->si_uid, &from->si_uid);
break;
- case __SI_CHLD >> 16:
+ case SIL_CHLD:
err |= __get_user(to->si_pid, &from->si_pid);
err |= __get_user(to->si_uid, &from->si_uid);
err |= __get_user(to->si_utime, &from->si_utime);
err |= __get_user(to->si_stime, &from->si_stime);
err |= __get_user(to->si_status, &from->si_status);
break;
- case __SI_FAULT >> 16:
+ case SIL_FAULT:
err |= __get_user(tmp, &from->si_addr);
to->si_addr = (void __force __user *)
(u64) (tmp & PSW32_ADDR_INSN);
break;
- case __SI_POLL >> 16:
+ case SIL_POLL:
err |= __get_user(to->si_band, &from->si_band);
err |= __get_user(to->si_fd, &from->si_fd);
break;
- case __SI_TIMER >> 16:
+ case SIL_TIMER:
err |= __get_user(to->si_tid, &from->si_tid);
err |= __get_user(to->si_overrun, &from->si_overrun);
err |= __get_user(to->si_int, &from->si_int);
diff --git a/arch/s390/kernel/cpcmd.c b/arch/s390/kernel/cpcmd.c
index 9f0e4a2785f7..63bc6603e0ed 100644
--- a/arch/s390/kernel/cpcmd.c
+++ b/arch/s390/kernel/cpcmd.c
@@ -14,6 +14,7 @@
#include <linux/spinlock.h>
#include <linux/stddef.h>
#include <linux/string.h>
+#include <linux/mm.h>
#include <asm/diag.h>
#include <asm/ebcdic.h>
#include <asm/cpcmd.h>
@@ -28,9 +29,7 @@ static int diag8_noresponse(int cmdlen)
register unsigned long reg3 asm ("3") = cmdlen;
asm volatile(
- " sam31\n"
" diag %1,%0,0x8\n"
- " sam64\n"
: "+d" (reg3) : "d" (reg2) : "cc");
return reg3;
}
@@ -43,9 +42,7 @@ static int diag8_response(int cmdlen, char *response, int *rlen)
register unsigned long reg5 asm ("5") = *rlen;
asm volatile(
- " sam31\n"
" diag %2,%0,0x8\n"
- " sam64\n"
" brc 8,1f\n"
" agr %1,%4\n"
"1:\n"
@@ -57,7 +54,6 @@ static int diag8_response(int cmdlen, char *response, int *rlen)
/*
* __cpcmd has some restrictions over cpcmd
- * - the response buffer must reside below 2GB (if any)
* - __cpcmd is unlocked and therefore not SMP-safe
*/
int __cpcmd(const char *cmd, char *response, int rlen, int *response_code)
@@ -88,13 +84,12 @@ EXPORT_SYMBOL(__cpcmd);
int cpcmd(const char *cmd, char *response, int rlen, int *response_code)
{
+ unsigned long flags;
char *lowbuf;
int len;
- unsigned long flags;
- if ((virt_to_phys(response) != (unsigned long) response) ||
- (((unsigned long)response + rlen) >> 31)) {
- lowbuf = kmalloc(rlen, GFP_KERNEL | GFP_DMA);
+ if (is_vmalloc_or_module_addr(response)) {
+ lowbuf = kmalloc(rlen, GFP_KERNEL);
if (!lowbuf) {
pr_warn("The cpcmd kernel function failed to allocate a response buffer\n");
return -ENOMEM;
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index 86b3e74f569e..1d9e83c401fc 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -866,7 +866,8 @@ static inline void
debug_finish_entry(debug_info_t * id, debug_entry_t* active, int level,
int exception)
{
- active->id.stck = get_tod_clock_fast() - sched_clock_base_cc;
+ active->id.stck = get_tod_clock_fast() -
+ *(unsigned long long *) &tod_clock_base[1];
active->id.fields.cpuid = smp_processor_id();
active->caller = __builtin_return_address(0);
active->id.fields.exception = exception;
@@ -1455,15 +1456,15 @@ int
debug_dflt_header_fn(debug_info_t * id, struct debug_view *view,
int area, debug_entry_t * entry, char *out_buf)
{
- unsigned long sec, usec;
+ unsigned long base, sec, usec;
char *except_str;
unsigned long caller;
int rc = 0;
unsigned int level;
level = entry->id.fields.level;
- sec = (entry->id.stck >> 12) + (sched_clock_base_cc >> 12);
- sec = sec - (TOD_UNIX_EPOCH >> 12);
+ base = (*(unsigned long *) &tod_clock_base[0]) >> 4;
+ sec = (entry->id.stck >> 12) + base - (TOD_UNIX_EPOCH >> 12);
usec = do_div(sec, USEC_PER_SEC);
if (entry->id.fields.exception)
diff --git a/arch/s390/kernel/diag.c b/arch/s390/kernel/diag.c
index ac6abcd3fe6a..349914571772 100644
--- a/arch/s390/kernel/diag.c
+++ b/arch/s390/kernel/diag.c
@@ -38,6 +38,7 @@ static const struct diag_desc diag_map[NR_DIAG_STAT] = {
[DIAG_STAT_X224] = { .code = 0x224, .name = "EBCDIC-Name Table" },
[DIAG_STAT_X250] = { .code = 0x250, .name = "Block I/O" },
[DIAG_STAT_X258] = { .code = 0x258, .name = "Page-Reference Services" },
+ [DIAG_STAT_X26C] = { .code = 0x26c, .name = "Certain System Information" },
[DIAG_STAT_X288] = { .code = 0x288, .name = "Time Bomb" },
[DIAG_STAT_X2C4] = { .code = 0x2c4, .name = "FTP Services" },
[DIAG_STAT_X2FC] = { .code = 0x2fc, .name = "Guest Performance Data" },
@@ -236,3 +237,31 @@ int diag224(void *ptr)
return rc;
}
EXPORT_SYMBOL(diag224);
+
+/*
+ * Diagnose 26C: Access Certain System Information
+ */
+static inline int __diag26c(void *req, void *resp, enum diag26c_sc subcode)
+{
+ register unsigned long _req asm("2") = (addr_t) req;
+ register unsigned long _resp asm("3") = (addr_t) resp;
+ register unsigned long _subcode asm("4") = subcode;
+ register unsigned long _rc asm("5") = -EOPNOTSUPP;
+
+ asm volatile(
+ " sam31\n"
+ " diag %[rx],%[ry],0x26c\n"
+ "0: sam64\n"
+ EX_TABLE(0b,0b)
+ : "+d" (_rc)
+ : [rx] "d" (_req), "d" (_resp), [ry] "d" (_subcode)
+ : "cc", "memory");
+ return _rc;
+}
+
+int diag26c(void *req, void *resp, enum diag26c_sc subcode)
+{
+ diag_stat_inc(DIAG_STAT_X26C);
+ return __diag26c(req, resp, subcode);
+}
+EXPORT_SYMBOL(diag26c);
diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c
index 829e1c53005c..2aa545dca4d5 100644
--- a/arch/s390/kernel/dumpstack.c
+++ b/arch/s390/kernel/dumpstack.c
@@ -76,7 +76,7 @@ void dump_trace(dump_trace_func_t func, void *data, struct task_struct *task,
frame_size = STACK_FRAME_OVERHEAD + sizeof(struct pt_regs);
#ifdef CONFIG_CHECK_STACK
sp = __dump_trace(func, data, sp,
- S390_lowcore.panic_stack + frame_size - 4096,
+ S390_lowcore.panic_stack + frame_size - PAGE_SIZE,
S390_lowcore.panic_stack + frame_size);
#endif
sp = __dump_trace(func, data, sp,
@@ -98,8 +98,10 @@ static int show_address(void *data, unsigned long address, int reliable)
return 0;
}
-static void show_trace(struct task_struct *task, unsigned long sp)
+void show_stack(struct task_struct *task, unsigned long *stack)
{
+ unsigned long sp = (unsigned long) stack;
+
if (!sp)
sp = task ? task->thread.ksp : current_stack_pointer();
printk("Call Trace:\n");
@@ -109,29 +111,6 @@ static void show_trace(struct task_struct *task, unsigned long sp)
debug_show_held_locks(task);
}
-void show_stack(struct task_struct *task, unsigned long *sp)
-{
- unsigned long *stack;
- int i;
-
- stack = sp;
- if (!stack) {
- if (!task)
- stack = (unsigned long *)current_stack_pointer();
- else
- stack = (unsigned long *)task->thread.ksp;
- }
- printk(KERN_DEFAULT "Stack:\n");
- for (i = 0; i < 20; i++) {
- if (((addr_t) stack & (THREAD_SIZE-1)) == 0)
- break;
- if (i % 4 == 0)
- printk(KERN_DEFAULT " ");
- pr_cont("%016lx%c", *stack++, i % 4 == 3 ? '\n' : ' ');
- }
- show_trace(task, (unsigned long)sp);
-}
-
static void show_last_breaking_event(struct pt_regs *regs)
{
printk("Last Breaking-Event-Address:\n");
@@ -149,8 +128,8 @@ void show_registers(struct pt_regs *regs)
pr_cont(" (%pSR)", (void *)regs->psw.addr);
pr_cont("\n");
printk(" R:%x T:%x IO:%x EX:%x Key:%x M:%x W:%x "
- "P:%x AS:%x CC:%x PM:%x", psw->r, psw->t, psw->i, psw->e,
- psw->key, psw->m, psw->w, psw->p, psw->as, psw->cc, psw->pm);
+ "P:%x AS:%x CC:%x PM:%x", psw->per, psw->dat, psw->io, psw->ext,
+ psw->key, psw->mcheck, psw->wait, psw->pstate, psw->as, psw->cc, psw->pm);
pr_cont(" RI:%x EA:%x\n", psw->ri, psw->eaba);
printk("%s GPRS: %016lx %016lx %016lx %016lx\n", mode,
regs->gprs[0], regs->gprs[1], regs->gprs[2], regs->gprs[3]);
@@ -169,7 +148,7 @@ void show_regs(struct pt_regs *regs)
show_registers(regs);
/* Show stack backtrace if pt_regs is from kernel mode */
if (!user_mode(regs))
- show_trace(NULL, regs->gprs[15]);
+ show_stack(NULL, (unsigned long *) regs->gprs[15]);
show_last_breaking_event(regs);
}
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 5d20182ee8ae..60181caf8e8a 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -53,8 +53,9 @@ static void __init reset_tod_clock(void)
if (set_tod_clock(TOD_UNIX_EPOCH) != 0 || store_tod_clock(&time) != 0)
disabled_wait(0);
- sched_clock_base_cc = TOD_UNIX_EPOCH;
- S390_lowcore.last_update_clock = sched_clock_base_cc;
+ memset(tod_clock_base, 0, 16);
+ *(__u64 *) &tod_clock_base[1] = TOD_UNIX_EPOCH;
+ S390_lowcore.last_update_clock = TOD_UNIX_EPOCH;
}
#ifdef CONFIG_SHARED_KERNEL
@@ -165,8 +166,8 @@ static noinline __init void create_kernel_nss(void)
}
/* re-initialize cputime accounting. */
- sched_clock_base_cc = get_tod_clock();
- S390_lowcore.last_update_clock = sched_clock_base_cc;
+ get_tod_clock_ext(tod_clock_base);
+ S390_lowcore.last_update_clock = *(__u64 *) &tod_clock_base[1];
S390_lowcore.last_update_timer = 0x7fffffffffffffffULL;
S390_lowcore.user_timer = 0;
S390_lowcore.system_timer = 0;
@@ -387,6 +388,12 @@ static __init void detect_machine_facilities(void)
}
if (test_facility(133))
S390_lowcore.machine_flags |= MACHINE_FLAG_GS;
+ if (test_facility(139) && (tod_clock_base[1] & 0x80)) {
+ /* Enabled signed clock comparator comparisons */
+ S390_lowcore.machine_flags |= MACHINE_FLAG_SCC;
+ clock_comparator_max = -1ULL >> 1;
+ __ctl_set_bit(0, 53);
+ }
}
static inline void save_vector_registers(void)
@@ -397,23 +404,11 @@ static inline void save_vector_registers(void)
#endif
}
-static int __init topology_setup(char *str)
-{
- bool enabled;
- int rc;
-
- rc = kstrtobool(str, &enabled);
- if (!rc && !enabled)
- S390_lowcore.machine_flags &= ~MACHINE_FLAG_TOPOLOGY;
- return rc;
-}
-early_param("topology", topology_setup);
-
static int __init disable_vector_extension(char *str)
{
S390_lowcore.machine_flags &= ~MACHINE_FLAG_VX;
__ctl_clear_bit(0, 17);
- return 1;
+ return 0;
}
early_param("novx", disable_vector_extension);
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 6315037335ba..21900e1cee9c 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -52,7 +52,7 @@ _TIF_TRACE = (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SECCOMP | \
_TIF_SYSCALL_TRACEPOINT)
_CIF_WORK = (_CIF_MCCK_PENDING | _CIF_ASCE_PRIMARY | \
_CIF_ASCE_SECONDARY | _CIF_FPU)
-_PIF_WORK = (_PIF_PER_TRAP)
+_PIF_WORK = (_PIF_PER_TRAP | _PIF_SYSCALL_RESTART)
#define BASED(name) name-cleanup_critical(%r13)
@@ -225,6 +225,7 @@ ENTRY(sie64a)
jnz .Lsie_skip
TSTMSK __LC_CPU_FLAGS,_CIF_FPU
jo .Lsie_skip # exit if fp/vx regs changed
+.Lsie_entry:
sie 0(%r14)
.Lsie_skip:
ni __SIE_PROG0C+3(%r14),0xfe # no longer in SIE
@@ -334,6 +335,8 @@ ENTRY(system_call)
jo .Lsysc_mcck_pending
TSTMSK __TI_flags(%r12),_TIF_NEED_RESCHED
jo .Lsysc_reschedule
+ TSTMSK __PT_FLAGS(%r11),_PIF_SYSCALL_RESTART
+ jo .Lsysc_syscall_restart
#ifdef CONFIG_UPROBES
TSTMSK __TI_flags(%r12),_TIF_UPROBE
jo .Lsysc_uprobe_notify
@@ -347,6 +350,8 @@ ENTRY(system_call)
jo .Lsysc_patch_pending # handle live patching just before
# signals and possible syscall restart
#endif
+ TSTMSK __PT_FLAGS(%r11),_PIF_SYSCALL_RESTART
+ jo .Lsysc_syscall_restart
TSTMSK __TI_flags(%r12),_TIF_SIGPENDING
jo .Lsysc_sigpending
TSTMSK __TI_flags(%r12),_TIF_NOTIFY_RESUME
@@ -448,6 +453,15 @@ ENTRY(system_call)
jg do_per_trap
#
+# _PIF_SYSCALL_RESTART is set, repeat the current system call
+#
+.Lsysc_syscall_restart:
+ ni __PT_FLAGS+7(%r11),255-_PIF_SYSCALL_RESTART
+ lmg %r1,%r7,__PT_R1(%r11) # load svc arguments
+ lg %r2,__PT_ORIG_GPR2(%r11)
+ j .Lsysc_do_svc
+
+#
# call tracehook_report_syscall_entry/tracehook_report_syscall_exit before
# and after the system call
#
@@ -881,9 +895,7 @@ ENTRY(save_fpu_regs)
oi __LC_CPU_FLAGS+7,_CIF_FPU
br %r14
.Lsave_fpu_regs_end:
-#if IS_ENABLED(CONFIG_KVM)
EXPORT_SYMBOL(save_fpu_regs)
-#endif
/*
* Load floating-point controls and floating-point or vector registers.
@@ -1111,7 +1123,13 @@ cleanup_critical:
.quad .Lsie_done
.Lcleanup_sie:
- lg %r9,__SF_EMPTY(%r15) # get control block pointer
+ cghi %r11,__LC_SAVE_AREA_ASYNC #Is this in normal interrupt?
+ je 1f
+ slg %r9,BASED(.Lsie_crit_mcck_start)
+ clg %r9,BASED(.Lsie_crit_mcck_length)
+ jh 1f
+ oi __LC_CPU_FLAGS+7, _CIF_MCCK_GUEST
+1: lg %r9,__SF_EMPTY(%r15) # get control block pointer
ni __SIE_PROG0C+3(%r9),0xfe # no longer in SIE
lctlg %c1,%c1,__LC_USER_ASCE # load primary asce
larl %r9,sie_exit # skip forward to sie_exit
@@ -1296,6 +1314,10 @@ cleanup_critical:
.quad .Lsie_gmap
.Lsie_critical_length:
.quad .Lsie_done - .Lsie_gmap
+.Lsie_crit_mcck_start:
+ .quad .Lsie_entry
+.Lsie_crit_mcck_length:
+ .quad .Lsie_skip - .Lsie_entry
#endif
.section .rodata, "a"
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index eff5b31671d4..8ed753c72d9b 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -302,7 +302,8 @@ ENTRY(startup_kdump)
xc 0xe00(256),0xe00
xc 0xf00(256),0xf00
lctlg %c0,%c15,0x200(%r0) # initialize control registers
- stck __LC_LAST_UPDATE_CLOCK
+ stcke __LC_BOOT_CLOCK
+ mvc __LC_LAST_UPDATE_CLOCK(8),__LC_BOOT_CLOCK+1
spt 6f-.LPG0(%r13)
mvc __LC_LAST_UPDATE_TIMER(8),6f-.LPG0(%r13)
l %r15,.Lstack-.LPG0(%r13)
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index 31c91f24e562..0d8f2a858ced 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -21,8 +21,8 @@ ENTRY(startup_continue)
xc __LC_LPP+1(7,0),__LC_LPP+1 # clear lpp and current_pid
mvi __LC_LPP,0x80 # and set LPP_MAGIC
.insn s,0xb2800000,__LC_LPP # load program parameter
-0: larl %r1,sched_clock_base_cc
- mvc 0(8,%r1),__LC_LAST_UPDATE_CLOCK
+0: larl %r1,tod_clock_base
+ mvc 0(16,%r1),__LC_BOOT_CLOCK
larl %r13,.LPG1 # get base
lctlg %c0,%c15,.Lctl-.LPG1(%r13) # load control registers
lg %r12,.Lparmaddr-.LPG1(%r13) # pointer to parameter area
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 6dca93b29bed..a2fdff0e730b 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -105,7 +105,8 @@ void do_IRQ(struct pt_regs *regs, int irq)
old_regs = set_irq_regs(regs);
irq_enter();
- if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator)
+ if (tod_after_eq(S390_lowcore.int_clock,
+ S390_lowcore.clock_comparator))
/* Serve timer interrupts first. */
clock_comparator_work();
generic_handle_irq(irq);
diff --git a/arch/s390/kernel/jump_label.c b/arch/s390/kernel/jump_label.c
index 6aa630a8d24f..262506cee4c3 100644
--- a/arch/s390/kernel/jump_label.c
+++ b/arch/s390/kernel/jump_label.c
@@ -93,7 +93,7 @@ void arch_jump_label_transform(struct jump_entry *entry,
args.entry = entry;
args.type = type;
- stop_machine(__sm_arch_jump_label_transform, &args, NULL);
+ stop_machine_cpuslocked(__sm_arch_jump_label_transform, &args, NULL);
}
void arch_jump_label_transform_static(struct jump_entry *entry,
diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c
index 3d6a99746454..6842e4501e2e 100644
--- a/arch/s390/kernel/kprobes.c
+++ b/arch/s390/kernel/kprobes.c
@@ -196,7 +196,7 @@ void arch_arm_kprobe(struct kprobe *p)
{
struct swap_insn_args args = {.p = p, .arm_kprobe = 1};
- stop_machine(swap_instruction, &args, NULL);
+ stop_machine_cpuslocked(swap_instruction, &args, NULL);
}
NOKPROBE_SYMBOL(arch_arm_kprobe);
@@ -204,7 +204,7 @@ void arch_disarm_kprobe(struct kprobe *p)
{
struct swap_insn_args args = {.p = p, .arm_kprobe = 0};
- stop_machine(swap_instruction, &args, NULL);
+ stop_machine_cpuslocked(swap_instruction, &args, NULL);
}
NOKPROBE_SYMBOL(arch_disarm_kprobe);
diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c
index 49a6bd45957b..3d0b14afa232 100644
--- a/arch/s390/kernel/machine_kexec.c
+++ b/arch/s390/kernel/machine_kexec.c
@@ -246,6 +246,7 @@ void arch_crash_save_vmcoreinfo(void)
VMCOREINFO_SYMBOL(lowcore_ptr);
VMCOREINFO_SYMBOL(high_memory);
VMCOREINFO_LENGTH(lowcore_ptr, NR_CPUS);
+ mem_assign_absolute(S390_lowcore.vmcore_info, paddr_vmcoreinfo_note());
}
void machine_shutdown(void)
diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c
index 985589523970..31d03a84126c 100644
--- a/arch/s390/kernel/nmi.c
+++ b/arch/s390/kernel/nmi.c
@@ -25,6 +25,8 @@
#include <asm/crw.h>
#include <asm/switch_to.h>
#include <asm/ctl_reg.h>
+#include <asm/asm-offsets.h>
+#include <linux/kvm_host.h>
struct mcck_struct {
unsigned int kill_task : 1;
@@ -274,12 +276,39 @@ static int notrace s390_validate_registers(union mci mci, int umode)
return kill_task;
}
+/*
+ * Backup the guest's machine check info to its description block
+ */
+static void notrace s390_backup_mcck_info(struct pt_regs *regs)
+{
+ struct mcck_volatile_info *mcck_backup;
+ struct sie_page *sie_page;
+
+ /* r14 contains the sie block, which was set in sie64a */
+ struct kvm_s390_sie_block *sie_block =
+ (struct kvm_s390_sie_block *) regs->gprs[14];
+
+ if (sie_block == NULL)
+ /* Something's seriously wrong, stop system. */
+ s390_handle_damage();
+
+ sie_page = container_of(sie_block, struct sie_page, sie_block);
+ mcck_backup = &sie_page->mcck_info;
+ mcck_backup->mcic = S390_lowcore.mcck_interruption_code &
+ ~(MCCK_CODE_CP | MCCK_CODE_EXT_DAMAGE);
+ mcck_backup->ext_damage_code = S390_lowcore.external_damage_code;
+ mcck_backup->failing_storage_address
+ = S390_lowcore.failing_storage_address;
+}
+
#define MAX_IPD_COUNT 29
#define MAX_IPD_TIME (5 * 60 * USEC_PER_SEC) /* 5 minutes */
#define ED_STP_ISLAND 6 /* External damage STP island check */
#define ED_STP_SYNC 7 /* External damage STP sync check */
+#define MCCK_CODE_NO_GUEST (MCCK_CODE_CP | MCCK_CODE_EXT_DAMAGE)
+
/*
* machine check handler.
*/
@@ -291,6 +320,7 @@ void notrace s390_do_machine_check(struct pt_regs *regs)
struct mcck_struct *mcck;
unsigned long long tmp;
union mci mci;
+ unsigned long mcck_dam_code;
nmi_enter();
inc_irq_stat(NMI_NMI);
@@ -301,7 +331,13 @@ void notrace s390_do_machine_check(struct pt_regs *regs)
/* System damage -> stopping machine */
s390_handle_damage();
}
- if (mci.pd) {
+
+ /*
+ * Reinject the instruction processing damages' machine checks
+ * including Delayed Access Exception into the guest
+ * instead of damaging the host if they happen in the guest.
+ */
+ if (mci.pd && !test_cpu_flag(CIF_MCCK_GUEST)) {
if (mci.b) {
/* Processing backup -> verify if we can survive this */
u64 z_mcic, o_mcic, t_mcic;
@@ -345,6 +381,14 @@ void notrace s390_do_machine_check(struct pt_regs *regs)
mcck->mcck_code = mci.val;
set_cpu_flag(CIF_MCCK_PENDING);
}
+
+ /*
+ * Backup the machine check's info if it happens when the guest
+ * is running.
+ */
+ if (test_cpu_flag(CIF_MCCK_GUEST))
+ s390_backup_mcck_info(regs);
+
if (mci.cd) {
/* Timing facility damage */
s390_handle_damage();
@@ -358,15 +402,22 @@ void notrace s390_do_machine_check(struct pt_regs *regs)
if (mcck->stp_queue)
set_cpu_flag(CIF_MCCK_PENDING);
}
- if (mci.se)
- /* Storage error uncorrected */
- s390_handle_damage();
- if (mci.ke)
- /* Storage key-error uncorrected */
- s390_handle_damage();
- if (mci.ds && mci.fa)
- /* Storage degradation */
- s390_handle_damage();
+
+ /*
+ * Reinject storage related machine checks into the guest if they
+ * happen when the guest is running.
+ */
+ if (!test_cpu_flag(CIF_MCCK_GUEST)) {
+ if (mci.se)
+ /* Storage error uncorrected */
+ s390_handle_damage();
+ if (mci.ke)
+ /* Storage key-error uncorrected */
+ s390_handle_damage();
+ if (mci.ds && mci.fa)
+ /* Storage degradation */
+ s390_handle_damage();
+ }
if (mci.cp) {
/* Channel report word pending */
mcck->channel_report = 1;
@@ -377,6 +428,19 @@ void notrace s390_do_machine_check(struct pt_regs *regs)
mcck->warning = 1;
set_cpu_flag(CIF_MCCK_PENDING);
}
+
+ /*
+ * If there are only Channel Report Pending and External Damage
+ * machine checks, they will not be reinjected into the guest
+ * because they refer to host conditions only.
+ */
+ mcck_dam_code = (mci.val & MCIC_SUBCLASS_MASK);
+ if (test_cpu_flag(CIF_MCCK_GUEST) &&
+ (mcck_dam_code & MCCK_CODE_NO_GUEST) != mcck_dam_code) {
+ /* Set exit reason code for host's later handling */
+ *((long *)(regs->gprs[15] + __SF_SIE_REASON)) = -EINTR;
+ }
+ clear_cpu_flag(CIF_MCCK_GUEST);
nmi_exit();
}
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index ca960d0370d5..7e1e40323b78 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -823,9 +823,12 @@ static int cpumsf_pmu_event_init(struct perf_event *event)
}
/* Check online status of the CPU to which the event is pinned */
- if ((unsigned int)event->cpu >= nr_cpumask_bits ||
- (event->cpu >= 0 && !cpu_online(event->cpu)))
- return -ENODEV;
+ if (event->cpu >= 0) {
+ if ((unsigned int)event->cpu >= nr_cpumask_bits)
+ return -ENODEV;
+ if (!cpu_online(event->cpu))
+ return -ENODEV;
+ }
/* Force reset of idle/hv excludes regardless of what the
* user requested.
@@ -995,11 +998,11 @@ static int perf_push_sample(struct perf_event *event, struct sf_raw_sample *sfr)
regs.int_parm = CPU_MF_INT_SF_PRA;
sde_regs = (struct perf_sf_sde_regs *) &regs.int_parm_long;
- psw_bits(regs.psw).ia = sfr->basic.ia;
- psw_bits(regs.psw).t = sfr->basic.T;
- psw_bits(regs.psw).w = sfr->basic.W;
- psw_bits(regs.psw).p = sfr->basic.P;
- psw_bits(regs.psw).as = sfr->basic.AS;
+ psw_bits(regs.psw).ia = sfr->basic.ia;
+ psw_bits(regs.psw).dat = sfr->basic.T;
+ psw_bits(regs.psw).wait = sfr->basic.W;
+ psw_bits(regs.psw).pstate = sfr->basic.P;
+ psw_bits(regs.psw).as = sfr->basic.AS;
/*
* Use the hardware provided configuration level to decide if the
diff --git a/arch/s390/kernel/perf_event.c b/arch/s390/kernel/perf_event.c
index 955a7b6fa0a4..93a386f4a3b5 100644
--- a/arch/s390/kernel/perf_event.c
+++ b/arch/s390/kernel/perf_event.c
@@ -245,6 +245,5 @@ ssize_t cpumf_events_sysfs_show(struct device *dev,
struct perf_pmu_events_attr *pmu_attr;
pmu_attr = container_of(attr, struct perf_pmu_events_attr, attr);
- return sprintf(page, "event=0x%04llx,name=%s\n",
- pmu_attr->id, attr->attr.name);
+ return sprintf(page, "event=0x%04llx\n", pmu_attr->id);
}
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 488c5bb8dc77..252ed61a128b 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -1160,6 +1160,8 @@ static int s390_gs_cb_get(struct task_struct *target,
return -ENODEV;
if (!data)
return -ENODATA;
+ if (target == current)
+ save_gs_cb(data);
return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
data, 0, sizeof(struct gs_cb));
}
@@ -1170,6 +1172,7 @@ static int s390_gs_cb_set(struct task_struct *target,
const void *kbuf, const void __user *ubuf)
{
struct gs_cb *data = target->thread.gs_cb;
+ int rc;
if (!MACHINE_HAS_GS)
return -ENODEV;
@@ -1177,10 +1180,18 @@ static int s390_gs_cb_set(struct task_struct *target,
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
+ data->gsd = 25;
target->thread.gs_cb = data;
+ if (target == current)
+ __ctl_set_bit(2, 4);
+ } else if (target == current) {
+ save_gs_cb(data);
}
- return user_regset_copyin(&pos, &count, &kbuf, &ubuf,
- data, 0, sizeof(struct gs_cb));
+ rc = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+ data, 0, sizeof(struct gs_cb));
+ if (target == current)
+ restore_gs_cb(data);
+ return rc;
}
static int s390_gs_bc_get(struct task_struct *target,
diff --git a/arch/s390/kernel/relocate_kernel.S b/arch/s390/kernel/relocate_kernel.S
index cfac28330b03..4bdc65636603 100644
--- a/arch/s390/kernel/relocate_kernel.S
+++ b/arch/s390/kernel/relocate_kernel.S
@@ -7,6 +7,7 @@
*/
#include <linux/linkage.h>
+#include <asm/page.h>
#include <asm/sigp.h>
/*
@@ -55,8 +56,8 @@ ENTRY(relocate_kernel)
.back_pgm:
lmg %r0,%r15,gprregs-.base(%r13)
.top:
- lghi %r7,4096 # load PAGE_SIZE in r7
- lghi %r9,4096 # load PAGE_SIZE in r9
+ lghi %r7,PAGE_SIZE # load PAGE_SIZE in r7
+ lghi %r9,PAGE_SIZE # load PAGE_SIZE in r9
lg %r5,0(%r2) # read another word for indirection page
aghi %r2,8 # increment pointer
tml %r5,0x1 # is it a destination page?
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 3ae756c0db3d..164a1e16b53e 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -305,7 +305,7 @@ static void __init setup_lowcore(void)
/*
* Setup lowcore for boot cpu
*/
- BUILD_BUG_ON(sizeof(struct lowcore) != LC_PAGES * 4096);
+ BUILD_BUG_ON(sizeof(struct lowcore) != LC_PAGES * PAGE_SIZE);
lc = memblock_virt_alloc_low(sizeof(*lc), sizeof(*lc));
lc->restart_psw.mask = PSW_KERNEL_BITS;
lc->restart_psw.addr = (unsigned long) restart_int_handler;
@@ -323,7 +323,7 @@ static void __init setup_lowcore(void)
lc->io_new_psw.mask = PSW_KERNEL_BITS |
PSW_MASK_DAT | PSW_MASK_MCHECK;
lc->io_new_psw.addr = (unsigned long) io_int_handler;
- lc->clock_comparator = -1ULL;
+ lc->clock_comparator = clock_comparator_max;
lc->kernel_stack = ((unsigned long) &init_thread_union)
+ THREAD_SIZE - STACK_FRAME_OVERHEAD - sizeof(struct pt_regs);
lc->async_stack = (unsigned long)
@@ -469,10 +469,10 @@ static void __init setup_memory_end(void)
vmalloc_size = VMALLOC_END ?: (128UL << 30) - MODULES_LEN;
tmp = (memory_end ?: max_physmem_end) / PAGE_SIZE;
tmp = tmp * (sizeof(struct page) + PAGE_SIZE);
- if (tmp + vmalloc_size + MODULES_LEN <= (1UL << 42))
- vmax = 1UL << 42; /* 3-level kernel page table */
+ if (tmp + vmalloc_size + MODULES_LEN <= _REGION2_SIZE)
+ vmax = _REGION2_SIZE; /* 3-level kernel page table */
else
- vmax = 1UL << 53; /* 4-level kernel page table */
+ vmax = _REGION1_SIZE; /* 4-level kernel page table */
/* module area is at the end of the kernel address space. */
MODULES_END = vmax;
MODULES_VADDR = MODULES_END - MODULES_LEN;
@@ -496,11 +496,6 @@ static void __init setup_memory_end(void)
pr_notice("The maximum memory size is %luMB\n", memory_end >> 20);
}
-static void __init setup_vmcoreinfo(void)
-{
- mem_assign_absolute(S390_lowcore.vmcore_info, paddr_vmcoreinfo_note());
-}
-
#ifdef CONFIG_CRASH_DUMP
/*
@@ -823,6 +818,9 @@ static int __init setup_hwcaps(void)
case 0x2965:
strcpy(elf_platform, "z13");
break;
+ case 0x3906:
+ strcpy(elf_platform, "z14");
+ break;
}
/*
@@ -927,6 +925,7 @@ void __init setup_arch(char **cmdline_p)
setup_memory_end();
setup_memory();
dma_contiguous_reserve(memory_end);
+ vmcp_cma_reserve();
check_initrd();
reserve_crashkernel();
@@ -939,7 +938,6 @@ void __init setup_arch(char **cmdline_p)
#endif
setup_resources();
- setup_vmcoreinfo();
setup_lowcore();
smp_fill_possible_mask();
cpu_detect_mhz_feature();
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 363000a77ffc..495ff6959dec 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -26,6 +26,7 @@
#include <linux/err.h>
#include <linux/spinlock.h>
#include <linux/kernel_stat.h>
+#include <linux/kmemleak.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/irqflags.h>
@@ -207,6 +208,8 @@ static int pcpu_alloc_lowcore(struct pcpu *pcpu, int cpu)
kmem_cache_alloc(pcpu_mcesa_cache, GFP_KERNEL);
if (!mcesa_origin)
goto out;
+ /* The pointer is stored with mcesa_bits ORed in */
+ kmemleak_not_leak((void *) mcesa_origin);
mcesa_bits = MACHINE_HAS_GS ? 11 : 0;
}
} else {
@@ -290,7 +293,10 @@ static void pcpu_attach_task(struct pcpu *pcpu, struct task_struct *tsk)
lc->lpp = LPP_MAGIC;
lc->current_pid = tsk->pid;
lc->user_timer = tsk->thread.user_timer;
+ lc->guest_timer = tsk->thread.guest_timer;
lc->system_timer = tsk->thread.system_timer;
+ lc->hardirq_timer = tsk->thread.hardirq_timer;
+ lc->softirq_timer = tsk->thread.softirq_timer;
lc->steal_timer = 0;
}
@@ -1178,6 +1184,7 @@ static int __init s390_smp_init(void)
rc = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "s390/smp:online",
smp_cpu_online, smp_cpu_pre_down);
+ rc = rc <= 0 ? rc : 0;
out:
return rc;
}
diff --git a/arch/s390/kernel/suspend.c b/arch/s390/kernel/suspend.c
index 39e2f41b6cf0..c8ea715bfe10 100644
--- a/arch/s390/kernel/suspend.c
+++ b/arch/s390/kernel/suspend.c
@@ -98,10 +98,16 @@ int page_key_alloc(unsigned long pages)
*/
void page_key_read(unsigned long *pfn)
{
+ struct page *page;
unsigned long addr;
-
- addr = (unsigned long) page_address(pfn_to_page(*pfn));
- *(unsigned char *) pfn = (unsigned char) page_get_storage_key(addr);
+ unsigned char key;
+
+ page = pfn_to_page(*pfn);
+ addr = (unsigned long) page_address(page);
+ key = (unsigned char) page_get_storage_key(addr) & 0x7f;
+ if (arch_test_page_nodat(page))
+ key |= 0x80;
+ *(unsigned char *) pfn = key;
}
/*
@@ -126,8 +132,16 @@ void page_key_memorize(unsigned long *pfn)
*/
void page_key_write(void *address)
{
- page_set_storage_key((unsigned long) address,
- page_key_rp->data[page_key_rx], 0);
+ struct page *page;
+ unsigned char key;
+
+ key = page_key_rp->data[page_key_rx];
+ page_set_storage_key((unsigned long) address, key & 0x7f, 0);
+ page = virt_to_page(address);
+ if (key & 0x80)
+ arch_set_page_nodat(page, 0);
+ else
+ arch_set_page_dat(page, 0);
if (++page_key_rx >= PAGE_KEY_DATA_SIZE)
return;
page_key_rp = page_key_rp->next;
diff --git a/arch/s390/kernel/sysinfo.c b/arch/s390/kernel/sysinfo.c
index eefcb54872a5..fb869b103825 100644
--- a/arch/s390/kernel/sysinfo.c
+++ b/arch/s390/kernel/sysinfo.c
@@ -242,7 +242,7 @@ static void print_ext_name(struct seq_file *m, int lvl,
static void print_uuid(struct seq_file *m, int i, struct sysinfo_3_2_2 *info)
{
- if (!memcmp(&info->vm[i].uuid, &NULL_UUID_BE, sizeof(uuid_be)))
+ if (uuid_is_null(&info->vm[i].uuid))
return;
seq_printf(m, "VM%02d UUID: %pUb\n", i, &info->vm[i].uuid);
}
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index c3a52f9a69a0..5cbd52169348 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -51,8 +51,15 @@
#include <asm/cio.h>
#include "entry.h"
-u64 sched_clock_base_cc = -1; /* Force to data section. */
-EXPORT_SYMBOL_GPL(sched_clock_base_cc);
+unsigned char tod_clock_base[16] __aligned(8) = {
+ /* Force to data section. */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+};
+EXPORT_SYMBOL_GPL(tod_clock_base);
+
+u64 clock_comparator_max = -1ULL;
+EXPORT_SYMBOL_GPL(clock_comparator_max);
static DEFINE_PER_CPU(struct clock_event_device, comparators);
@@ -75,7 +82,7 @@ void __init time_early_init(void)
struct ptff_qui qui;
/* Initialize TOD steering parameters */
- tod_steering_end = sched_clock_base_cc;
+ tod_steering_end = *(unsigned long long *) &tod_clock_base[1];
vdso_data->ts_end = tod_steering_end;
if (!test_facility(28))
@@ -111,22 +118,27 @@ unsigned long long monotonic_clock(void)
}
EXPORT_SYMBOL(monotonic_clock);
-static void tod_to_timeval(__u64 todval, struct timespec64 *xt)
+static void ext_to_timespec64(unsigned char *clk, struct timespec64 *xt)
{
- unsigned long long sec;
+ unsigned long long high, low, rem, sec, nsec;
+
+ /* Split extendnd TOD clock to micro-seconds and sub-micro-seconds */
+ high = (*(unsigned long long *) clk) >> 4;
+ low = (*(unsigned long long *)&clk[7]) << 4;
+ /* Calculate seconds and nano-seconds */
+ sec = high;
+ rem = do_div(sec, 1000000);
+ nsec = (((low >> 32) + (rem << 32)) * 1000) >> 32;
- sec = todval >> 12;
- do_div(sec, 1000000);
xt->tv_sec = sec;
- todval -= (sec * 1000000) << 12;
- xt->tv_nsec = ((todval * 1000) >> 12);
+ xt->tv_nsec = nsec;
}
void clock_comparator_work(void)
{
struct clock_event_device *cd;
- S390_lowcore.clock_comparator = -1ULL;
+ S390_lowcore.clock_comparator = clock_comparator_max;
cd = this_cpu_ptr(&comparators);
cd->event_handler(cd);
}
@@ -148,7 +160,7 @@ void init_cpu_timer(void)
struct clock_event_device *cd;
int cpu;
- S390_lowcore.clock_comparator = -1ULL;
+ S390_lowcore.clock_comparator = clock_comparator_max;
set_clock_comparator(S390_lowcore.clock_comparator);
cpu = smp_processor_id();
@@ -179,7 +191,7 @@ static void clock_comparator_interrupt(struct ext_code ext_code,
unsigned long param64)
{
inc_irq_stat(IRQEXT_CLK);
- if (S390_lowcore.clock_comparator == -1ULL)
+ if (S390_lowcore.clock_comparator == clock_comparator_max)
set_clock_comparator(S390_lowcore.clock_comparator);
}
@@ -197,18 +209,28 @@ static void stp_reset(void);
void read_persistent_clock64(struct timespec64 *ts)
{
- __u64 clock;
+ unsigned char clk[STORE_CLOCK_EXT_SIZE];
+ __u64 delta;
- clock = get_tod_clock() - initial_leap_seconds;
- tod_to_timeval(clock - TOD_UNIX_EPOCH, ts);
+ delta = initial_leap_seconds + TOD_UNIX_EPOCH;
+ get_tod_clock_ext(clk);
+ *(__u64 *) &clk[1] -= delta;
+ if (*(__u64 *) &clk[1] > delta)
+ clk[0]--;
+ ext_to_timespec64(clk, ts);
}
void read_boot_clock64(struct timespec64 *ts)
{
- __u64 clock;
+ unsigned char clk[STORE_CLOCK_EXT_SIZE];
+ __u64 delta;
- clock = sched_clock_base_cc - initial_leap_seconds;
- tod_to_timeval(clock - TOD_UNIX_EPOCH, ts);
+ delta = initial_leap_seconds + TOD_UNIX_EPOCH;
+ memcpy(clk, tod_clock_base, 16);
+ *(__u64 *) &clk[1] -= delta;
+ if (*(__u64 *) &clk[1] > delta)
+ clk[0]--;
+ ext_to_timespec64(clk, ts);
}
static u64 read_tod_clock(struct clocksource *cs)
@@ -335,7 +357,7 @@ static unsigned long clock_sync_flags;
* source. If the clock mode is local it will return -EOPNOTSUPP and
* -EAGAIN if the clock is not in sync with the external reference.
*/
-int get_phys_clock(unsigned long long *clock)
+int get_phys_clock(unsigned long *clock)
{
atomic_t *sw_ptr;
unsigned int sw0, sw1;
@@ -406,7 +428,10 @@ static void clock_sync_global(unsigned long long delta)
struct ptff_qto qto;
/* Fixup the monotonic sched clock. */
- sched_clock_base_cc += delta;
+ *(unsigned long long *) &tod_clock_base[1] += delta;
+ if (*(unsigned long long *) &tod_clock_base[1] < delta)
+ /* Epoch overflow */
+ tod_clock_base[0]++;
/* Adjust TOD steering parameters. */
vdso_data->tb_update_count++;
now = get_tod_clock();
@@ -437,7 +462,7 @@ static void clock_sync_global(unsigned long long delta)
static void clock_sync_local(unsigned long long delta)
{
/* Add the delta to the clock comparator. */
- if (S390_lowcore.clock_comparator != -1ULL) {
+ if (S390_lowcore.clock_comparator != clock_comparator_max) {
S390_lowcore.clock_comparator += delta;
set_clock_comparator(S390_lowcore.clock_comparator);
}
@@ -636,10 +661,10 @@ static void stp_work_fn(struct work_struct *work)
goto out_unlock;
memset(&stp_sync, 0, sizeof(stp_sync));
- get_online_cpus();
+ cpus_read_lock();
atomic_set(&stp_sync.cpus, num_online_cpus() - 1);
- stop_machine(stp_sync_clock, &stp_sync, cpu_online_mask);
- put_online_cpus();
+ stop_machine_cpuslocked(stp_sync_clock, &stp_sync, cpu_online_mask);
+ cpus_read_unlock();
if (!check_sync_clock())
/*
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index bb47c92476f0..ed0bdd220e1a 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -8,6 +8,8 @@
#include <linux/workqueue.h>
#include <linux/bootmem.h>
+#include <linux/uaccess.h>
+#include <linux/sysctl.h>
#include <linux/cpuset.h>
#include <linux/device.h>
#include <linux/export.h>
@@ -29,12 +31,20 @@
#define PTF_VERTICAL (1UL)
#define PTF_CHECK (2UL)
+enum {
+ TOPOLOGY_MODE_HW,
+ TOPOLOGY_MODE_SINGLE,
+ TOPOLOGY_MODE_PACKAGE,
+ TOPOLOGY_MODE_UNINITIALIZED
+};
+
struct mask_info {
struct mask_info *next;
unsigned char id;
cpumask_t mask;
};
+static int topology_mode = TOPOLOGY_MODE_UNINITIALIZED;
static void set_topology_timer(void);
static void topology_work_fn(struct work_struct *work);
static struct sysinfo_15_1_x *tl_info;
@@ -59,11 +69,26 @@ static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu)
cpumask_t mask;
cpumask_copy(&mask, cpumask_of(cpu));
- if (!MACHINE_HAS_TOPOLOGY)
- return mask;
- for (; info; info = info->next) {
- if (cpumask_test_cpu(cpu, &info->mask))
- return info->mask;
+ switch (topology_mode) {
+ case TOPOLOGY_MODE_HW:
+ while (info) {
+ if (cpumask_test_cpu(cpu, &info->mask)) {
+ mask = info->mask;
+ break;
+ }
+ info = info->next;
+ }
+ if (cpumask_empty(&mask))
+ cpumask_copy(&mask, cpumask_of(cpu));
+ break;
+ case TOPOLOGY_MODE_PACKAGE:
+ cpumask_copy(&mask, cpu_present_mask);
+ break;
+ default:
+ /* fallthrough */
+ case TOPOLOGY_MODE_SINGLE:
+ cpumask_copy(&mask, cpumask_of(cpu));
+ break;
}
return mask;
}
@@ -74,7 +99,7 @@ static cpumask_t cpu_thread_map(unsigned int cpu)
int i;
cpumask_copy(&mask, cpumask_of(cpu));
- if (!MACHINE_HAS_TOPOLOGY)
+ if (topology_mode != TOPOLOGY_MODE_HW)
return mask;
cpu -= cpu % (smp_cpu_mtid + 1);
for (i = 0; i <= smp_cpu_mtid; i++)
@@ -184,10 +209,8 @@ static void topology_update_polarization_simple(void)
{
int cpu;
- mutex_lock(&smp_cpu_state_mutex);
for_each_possible_cpu(cpu)
smp_cpu_set_polarization(cpu, POLARIZATION_HRZ);
- mutex_unlock(&smp_cpu_state_mutex);
}
static int ptf(unsigned long fc)
@@ -223,7 +246,7 @@ int topology_set_cpu_management(int fc)
static void update_cpu_masks(void)
{
struct cpu_topology_s390 *topo;
- int cpu;
+ int cpu, id;
for_each_possible_cpu(cpu) {
topo = &cpu_topology[cpu];
@@ -231,12 +254,13 @@ static void update_cpu_masks(void)
topo->core_mask = cpu_group_map(&socket_info, cpu);
topo->book_mask = cpu_group_map(&book_info, cpu);
topo->drawer_mask = cpu_group_map(&drawer_info, cpu);
- if (!MACHINE_HAS_TOPOLOGY) {
+ if (topology_mode != TOPOLOGY_MODE_HW) {
+ id = topology_mode == TOPOLOGY_MODE_PACKAGE ? 0 : cpu;
topo->thread_id = cpu;
topo->core_id = cpu;
- topo->socket_id = cpu;
- topo->book_id = cpu;
- topo->drawer_id = cpu;
+ topo->socket_id = id;
+ topo->book_id = id;
+ topo->drawer_id = id;
if (cpu_present(cpu))
cpumask_set_cpu(cpu, &cpus_with_topology);
}
@@ -254,6 +278,7 @@ static int __arch_update_cpu_topology(void)
struct sysinfo_15_1_x *info = tl_info;
int rc = 0;
+ mutex_lock(&smp_cpu_state_mutex);
cpumask_clear(&cpus_with_topology);
if (MACHINE_HAS_TOPOLOGY) {
rc = 1;
@@ -263,6 +288,7 @@ static int __arch_update_cpu_topology(void)
update_cpu_masks();
if (!MACHINE_HAS_TOPOLOGY)
topology_update_polarization_simple();
+ mutex_unlock(&smp_cpu_state_mutex);
return rc;
}
@@ -289,6 +315,11 @@ void topology_schedule_update(void)
schedule_work(&topology_work);
}
+static void topology_flush_work(void)
+{
+ flush_work(&topology_work);
+}
+
static void topology_timer_fn(unsigned long ignored)
{
if (ptf(PTF_CHECK))
@@ -459,6 +490,12 @@ void __init topology_init_early(void)
struct sysinfo_15_1_x *info;
set_sched_topology(s390_topology);
+ if (topology_mode == TOPOLOGY_MODE_UNINITIALIZED) {
+ if (MACHINE_HAS_TOPOLOGY)
+ topology_mode = TOPOLOGY_MODE_HW;
+ else
+ topology_mode = TOPOLOGY_MODE_SINGLE;
+ }
if (!MACHINE_HAS_TOPOLOGY)
goto out;
tl_info = memblock_virt_alloc(PAGE_SIZE, PAGE_SIZE);
@@ -474,12 +511,97 @@ out:
__arch_update_cpu_topology();
}
+static inline int topology_get_mode(int enabled)
+{
+ if (!enabled)
+ return TOPOLOGY_MODE_SINGLE;
+ return MACHINE_HAS_TOPOLOGY ? TOPOLOGY_MODE_HW : TOPOLOGY_MODE_PACKAGE;
+}
+
+static inline int topology_is_enabled(void)
+{
+ return topology_mode != TOPOLOGY_MODE_SINGLE;
+}
+
+static int __init topology_setup(char *str)
+{
+ bool enabled;
+ int rc;
+
+ rc = kstrtobool(str, &enabled);
+ if (rc)
+ return rc;
+ topology_mode = topology_get_mode(enabled);
+ return 0;
+}
+early_param("topology", topology_setup);
+
+static int topology_ctl_handler(struct ctl_table *ctl, int write,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ unsigned int len;
+ int new_mode;
+ char buf[2];
+
+ if (!*lenp || *ppos) {
+ *lenp = 0;
+ return 0;
+ }
+ if (!write) {
+ strncpy(buf, topology_is_enabled() ? "1\n" : "0\n",
+ ARRAY_SIZE(buf));
+ len = strnlen(buf, ARRAY_SIZE(buf));
+ if (len > *lenp)
+ len = *lenp;
+ if (copy_to_user(buffer, buf, len))
+ return -EFAULT;
+ goto out;
+ }
+ len = *lenp;
+ if (copy_from_user(buf, buffer, len > sizeof(buf) ? sizeof(buf) : len))
+ return -EFAULT;
+ if (buf[0] != '0' && buf[0] != '1')
+ return -EINVAL;
+ mutex_lock(&smp_cpu_state_mutex);
+ new_mode = topology_get_mode(buf[0] == '1');
+ if (topology_mode != new_mode) {
+ topology_mode = new_mode;
+ topology_schedule_update();
+ }
+ mutex_unlock(&smp_cpu_state_mutex);
+ topology_flush_work();
+out:
+ *lenp = len;
+ *ppos += len;
+ return 0;
+}
+
+static struct ctl_table topology_ctl_table[] = {
+ {
+ .procname = "topology",
+ .mode = 0644,
+ .proc_handler = topology_ctl_handler,
+ },
+ { },
+};
+
+static struct ctl_table topology_dir_table[] = {
+ {
+ .procname = "s390",
+ .maxlen = 0,
+ .mode = 0555,
+ .child = topology_ctl_table,
+ },
+ { },
+};
+
static int __init topology_init(void)
{
if (MACHINE_HAS_TOPOLOGY)
set_topology_timer();
else
topology_update_polarization_simple();
+ register_sysctl_table(topology_dir_table);
return device_create_file(cpu_subsys.dev_root, &dev_attr_dispatching);
}
device_initcall(topology_init);
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index f787b9d8f54c..442e5423ce3d 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -21,6 +21,7 @@
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
+#include <linux/cpu.h>
#include <asm/fpu/api.h>
#include "entry.h"
diff --git a/arch/s390/kernel/uprobes.c b/arch/s390/kernel/uprobes.c
index 314e0ee3016a..d94baa8db507 100644
--- a/arch/s390/kernel/uprobes.c
+++ b/arch/s390/kernel/uprobes.c
@@ -27,12 +27,12 @@ int arch_uprobe_analyze_insn(struct arch_uprobe *auprobe, struct mm_struct *mm,
int arch_uprobe_pre_xol(struct arch_uprobe *auprobe, struct pt_regs *regs)
{
- if (psw_bits(regs->psw).eaba == PSW_AMODE_24BIT)
+ if (psw_bits(regs->psw).eaba == PSW_BITS_AMODE_24BIT)
return -EINVAL;
- if (!is_compat_task() && psw_bits(regs->psw).eaba == PSW_AMODE_31BIT)
+ if (!is_compat_task() && psw_bits(regs->psw).eaba == PSW_BITS_AMODE_31BIT)
return -EINVAL;
clear_pt_regs_flag(regs, PIF_PER_TRAP);
- auprobe->saved_per = psw_bits(regs->psw).r;
+ auprobe->saved_per = psw_bits(regs->psw).per;
auprobe->saved_int_code = regs->int_code;
regs->int_code = UPROBE_TRAP_NR;
regs->psw.addr = current->utask->xol_vaddr;
@@ -81,7 +81,7 @@ int arch_uprobe_post_xol(struct arch_uprobe *auprobe, struct pt_regs *regs)
clear_tsk_thread_flag(current, TIF_UPROBE_SINGLESTEP);
update_cr_regs(current);
- psw_bits(regs->psw).r = auprobe->saved_per;
+ psw_bits(regs->psw).per = auprobe->saved_per;
regs->int_code = auprobe->saved_int_code;
if (fixup & FIXUP_PSW_NORMAL)
@@ -372,8 +372,8 @@ static void handle_insn_ril(struct arch_uprobe *auprobe, struct pt_regs *regs)
bool arch_uprobe_skip_sstep(struct arch_uprobe *auprobe, struct pt_regs *regs)
{
- if ((psw_bits(regs->psw).eaba == PSW_AMODE_24BIT) ||
- ((psw_bits(regs->psw).eaba == PSW_AMODE_31BIT) &&
+ if ((psw_bits(regs->psw).eaba == PSW_BITS_AMODE_24BIT) ||
+ ((psw_bits(regs->psw).eaba == PSW_BITS_AMODE_31BIT) &&
!is_compat_task())) {
regs->psw.addr = __rewind_psw(regs->psw, UPROBE_SWBP_INSN_SIZE);
do_report_trap(regs, SIGILL, ILL_ILLADR, NULL);
diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
index 10516ae3b55e..eacda05b45d7 100644
--- a/arch/s390/kernel/vdso.c
+++ b/arch/s390/kernel/vdso.c
@@ -50,6 +50,56 @@ static struct page **vdso64_pagelist;
*/
unsigned int __read_mostly vdso_enabled = 1;
+static int vdso_fault(const struct vm_special_mapping *sm,
+ struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ struct page **vdso_pagelist;
+ unsigned long vdso_pages;
+
+ vdso_pagelist = vdso64_pagelist;
+ vdso_pages = vdso64_pages;
+#ifdef CONFIG_COMPAT
+ if (is_compat_task()) {
+ vdso_pagelist = vdso32_pagelist;
+ vdso_pages = vdso32_pages;
+ }
+#endif
+
+ if (vmf->pgoff >= vdso_pages)
+ return VM_FAULT_SIGBUS;
+
+ vmf->page = vdso_pagelist[vmf->pgoff];
+ get_page(vmf->page);
+ return 0;
+}
+
+static int vdso_mremap(const struct vm_special_mapping *sm,
+ struct vm_area_struct *vma)
+{
+ unsigned long vdso_pages;
+
+ vdso_pages = vdso64_pages;
+#ifdef CONFIG_COMPAT
+ if (is_compat_task())
+ vdso_pages = vdso32_pages;
+#endif
+
+ if ((vdso_pages << PAGE_SHIFT) != vma->vm_end - vma->vm_start)
+ return -EINVAL;
+
+ if (WARN_ON_ONCE(current->mm != vma->vm_mm))
+ return -EFAULT;
+
+ current->mm->context.vdso_base = vma->vm_start;
+ return 0;
+}
+
+static const struct vm_special_mapping vdso_mapping = {
+ .name = "[vdso]",
+ .fault = vdso_fault,
+ .mremap = vdso_mremap,
+};
+
static int __init vdso_setup(char *s)
{
unsigned long val;
@@ -107,6 +157,8 @@ int vdso_alloc_per_cpu(struct lowcore *lowcore)
page_frame = get_zeroed_page(GFP_KERNEL);
if (!segment_table || !page_table || !page_frame)
goto out;
+ arch_set_page_dat(virt_to_page(segment_table), SEGMENT_ORDER);
+ arch_set_page_dat(virt_to_page(page_table), 0);
/* Initialize per-cpu vdso data page */
vd = (struct vdso_per_cpu_data *) page_frame;
@@ -181,7 +233,7 @@ static void vdso_init_cr5(void)
int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
{
struct mm_struct *mm = current->mm;
- struct page **vdso_pagelist;
+ struct vm_area_struct *vma;
unsigned long vdso_pages;
unsigned long vdso_base;
int rc;
@@ -194,13 +246,10 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
if (!uses_interp)
return 0;
- vdso_pagelist = vdso64_pagelist;
vdso_pages = vdso64_pages;
#ifdef CONFIG_COMPAT
- if (is_compat_task()) {
- vdso_pagelist = vdso32_pagelist;
+ if (is_compat_task())
vdso_pages = vdso32_pages;
- }
#endif
/*
* vDSO has a problem and was disabled, just don't "enable" it for
@@ -209,8 +258,6 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
if (vdso_pages == 0)
return 0;
- current->mm->context.vdso_base = 0;
-
/*
* pick a base address for the vDSO in process space. We try to put
* it at vdso_base which is the "natural" base for it, but we might
@@ -225,13 +272,6 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
}
/*
- * Put vDSO base into mm struct. We need to do this before calling
- * install_special_mapping or the perf counter mmap tracking code
- * will fail to recognise it as a vDSO (since arch_vma_name fails).
- */
- current->mm->context.vdso_base = vdso_base;
-
- /*
* our vma flags don't have VM_WRITE so by default, the process
* isn't allowed to write those pages.
* gdb can break that with ptrace interface, and thus trigger COW
@@ -241,24 +281,23 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
* It's fine to use that for setting breakpoints in the vDSO code
* pages though.
*/
- rc = install_special_mapping(mm, vdso_base, vdso_pages << PAGE_SHIFT,
- VM_READ|VM_EXEC|
- VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
- vdso_pagelist);
- if (rc)
- current->mm->context.vdso_base = 0;
+ vma = _install_special_mapping(mm, vdso_base, vdso_pages << PAGE_SHIFT,
+ VM_READ|VM_EXEC|
+ VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
+ &vdso_mapping);
+ if (IS_ERR(vma)) {
+ rc = PTR_ERR(vma);
+ goto out_up;
+ }
+
+ current->mm->context.vdso_base = vdso_base;
+ rc = 0;
+
out_up:
up_write(&mm->mmap_sem);
return rc;
}
-const char *arch_vma_name(struct vm_area_struct *vma)
-{
- if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso_base)
- return "[vdso]";
- return NULL;
-}
-
static int __init vdso_init(void)
{
int i;
diff --git a/arch/s390/kernel/vdso32/vdso32.lds.S b/arch/s390/kernel/vdso32/vdso32.lds.S
index 8f048c2d6d13..263a7f9eee1e 100644
--- a/arch/s390/kernel/vdso32/vdso32.lds.S
+++ b/arch/s390/kernel/vdso32/vdso32.lds.S
@@ -2,6 +2,8 @@
* This is the infamous ld script for the 32 bits vdso
* library
*/
+
+#include <asm/page.h>
#include <asm/vdso.h>
OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390")
@@ -91,7 +93,7 @@ SECTIONS
.debug_ranges 0 : { *(.debug_ranges) }
.gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
- . = ALIGN(4096);
+ . = ALIGN(PAGE_SIZE);
PROVIDE(_vdso_data = .);
/DISCARD/ : {
diff --git a/arch/s390/kernel/vdso64/vdso64.lds.S b/arch/s390/kernel/vdso64/vdso64.lds.S
index f35455d497fe..9e3dbbcc1cfc 100644
--- a/arch/s390/kernel/vdso64/vdso64.lds.S
+++ b/arch/s390/kernel/vdso64/vdso64.lds.S
@@ -2,6 +2,8 @@
* This is the infamous ld script for the 64 bits vdso
* library
*/
+
+#include <asm/page.h>
#include <asm/vdso.h>
OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390")
@@ -91,7 +93,7 @@ SECTIONS
.debug_ranges 0 : { *(.debug_ranges) }
.gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
- . = ALIGN(4096);
+ . = ALIGN(PAGE_SIZE);
PROVIDE(_vdso_data = .);
/DISCARD/ : {
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 072d84ba42a3..dd7178fbb4f3 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -110,11 +110,10 @@ static inline u64 scale_vtime(u64 vtime)
return vtime;
}
-static void account_system_index_scaled(struct task_struct *p,
- u64 cputime, u64 scaled,
+static void account_system_index_scaled(struct task_struct *p, u64 cputime,
enum cpu_usage_stat index)
{
- p->stimescaled += cputime_to_nsecs(scaled);
+ p->stimescaled += cputime_to_nsecs(scale_vtime(cputime));
account_system_index_time(p, cputime_to_nsecs(cputime), index);
}
@@ -176,14 +175,11 @@ static int do_account_vtime(struct task_struct *tsk)
}
if (system)
- account_system_index_scaled(tsk, system, scale_vtime(system),
- CPUTIME_SYSTEM);
+ account_system_index_scaled(tsk, system, CPUTIME_SYSTEM);
if (hardirq)
- account_system_index_scaled(tsk, hardirq, scale_vtime(hardirq),
- CPUTIME_IRQ);
+ account_system_index_scaled(tsk, hardirq, CPUTIME_IRQ);
if (softirq)
- account_system_index_scaled(tsk, softirq, scale_vtime(softirq),
- CPUTIME_SOFTIRQ);
+ account_system_index_scaled(tsk, softirq, CPUTIME_SOFTIRQ);
steal = S390_lowcore.steal_timer;
if ((s64) steal > 0) {
diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c
index ce865bd4f81d..d93a2c0474bf 100644
--- a/arch/s390/kvm/diag.c
+++ b/arch/s390/kvm/diag.c
@@ -27,7 +27,7 @@ static int diag_release_pages(struct kvm_vcpu *vcpu)
unsigned long prefix = kvm_s390_get_prefix(vcpu);
start = vcpu->run->s.regs.gprs[(vcpu->arch.sie_block->ipa & 0xf0) >> 4];
- end = vcpu->run->s.regs.gprs[vcpu->arch.sie_block->ipa & 0xf] + 4096;
+ end = vcpu->run->s.regs.gprs[vcpu->arch.sie_block->ipa & 0xf] + PAGE_SIZE;
vcpu->stat.diagnose_10++;
if (start & ~PAGE_MASK || end & ~PAGE_MASK || start >= end
@@ -51,9 +51,9 @@ static int diag_release_pages(struct kvm_vcpu *vcpu)
*/
gmap_discard(vcpu->arch.gmap, start, prefix);
if (start <= prefix)
- gmap_discard(vcpu->arch.gmap, 0, 4096);
- if (end > prefix + 4096)
- gmap_discard(vcpu->arch.gmap, 4096, 8192);
+ gmap_discard(vcpu->arch.gmap, 0, PAGE_SIZE);
+ if (end > prefix + PAGE_SIZE)
+ gmap_discard(vcpu->arch.gmap, PAGE_SIZE, 2 * PAGE_SIZE);
gmap_discard(vcpu->arch.gmap, prefix + 2 * PAGE_SIZE, end);
}
return 0;
@@ -150,7 +150,7 @@ static int __diag_time_slice_end(struct kvm_vcpu *vcpu)
{
VCPU_EVENT(vcpu, 5, "%s", "diag time slice end");
vcpu->stat.diagnose_44++;
- kvm_vcpu_on_spin(vcpu);
+ kvm_vcpu_on_spin(vcpu, true);
return 0;
}
diff --git a/arch/s390/kvm/gaccess.c b/arch/s390/kvm/gaccess.c
index 3b297fa3aa67..3cc77391a102 100644
--- a/arch/s390/kvm/gaccess.c
+++ b/arch/s390/kvm/gaccess.c
@@ -89,7 +89,7 @@ struct region3_table_entry_fc1 {
unsigned long f : 1; /* Fetch-Protection Bit */
unsigned long fc : 1; /* Format-Control */
unsigned long p : 1; /* DAT-Protection Bit */
- unsigned long co : 1; /* Change-Recording Override */
+ unsigned long iep: 1; /* Instruction-Execution-Protection */
unsigned long : 2;
unsigned long i : 1; /* Region-Invalid Bit */
unsigned long cr : 1; /* Common-Region Bit */
@@ -131,7 +131,7 @@ struct segment_entry_fc1 {
unsigned long f : 1; /* Fetch-Protection Bit */
unsigned long fc : 1; /* Format-Control */
unsigned long p : 1; /* DAT-Protection Bit */
- unsigned long co : 1; /* Change-Recording Override */
+ unsigned long iep: 1; /* Instruction-Execution-Protection */
unsigned long : 2;
unsigned long i : 1; /* Segment-Invalid Bit */
unsigned long cs : 1; /* Common-Segment Bit */
@@ -168,7 +168,8 @@ union page_table_entry {
unsigned long z : 1; /* Zero Bit */
unsigned long i : 1; /* Page-Invalid Bit */
unsigned long p : 1; /* DAT-Protection Bit */
- unsigned long : 9;
+ unsigned long iep: 1; /* Instruction-Execution-Protection */
+ unsigned long : 8;
};
};
@@ -241,7 +242,7 @@ struct ale {
unsigned long asteo : 25; /* ASN-Second-Table-Entry Origin */
unsigned long : 6;
unsigned long astesn : 32; /* ASTE Sequence Number */
-} __packed;
+};
struct aste {
unsigned long i : 1; /* ASX-Invalid Bit */
@@ -257,7 +258,7 @@ struct aste {
unsigned long ald : 32;
unsigned long astesn : 32;
/* .. more fields there */
-} __packed;
+};
int ipte_lock_held(struct kvm_vcpu *vcpu)
{
@@ -485,6 +486,7 @@ enum prot_type {
PROT_TYPE_KEYC = 1,
PROT_TYPE_ALC = 2,
PROT_TYPE_DAT = 3,
+ PROT_TYPE_IEP = 4,
};
static int trans_exc(struct kvm_vcpu *vcpu, int code, unsigned long gva,
@@ -500,6 +502,9 @@ static int trans_exc(struct kvm_vcpu *vcpu, int code, unsigned long gva,
switch (code) {
case PGM_PROTECTION:
switch (prot) {
+ case PROT_TYPE_IEP:
+ tec->b61 = 1;
+ /* FALL THROUGH */
case PROT_TYPE_LA:
tec->b56 = 1;
break;
@@ -551,26 +556,26 @@ static int get_vcpu_asce(struct kvm_vcpu *vcpu, union asce *asce,
int rc;
struct psw_bits psw = psw_bits(vcpu->arch.sie_block->gpsw);
- if (!psw.t) {
+ if (!psw.dat) {
asce->val = 0;
asce->r = 1;
return 0;
}
- if (mode == GACC_IFETCH)
- psw.as = psw.as == PSW_AS_HOME ? PSW_AS_HOME : PSW_AS_PRIMARY;
+ if ((mode == GACC_IFETCH) && (psw.as != PSW_BITS_AS_HOME))
+ psw.as = PSW_BITS_AS_PRIMARY;
switch (psw.as) {
- case PSW_AS_PRIMARY:
+ case PSW_BITS_AS_PRIMARY:
asce->val = vcpu->arch.sie_block->gcr[1];
return 0;
- case PSW_AS_SECONDARY:
+ case PSW_BITS_AS_SECONDARY:
asce->val = vcpu->arch.sie_block->gcr[7];
return 0;
- case PSW_AS_HOME:
+ case PSW_BITS_AS_HOME:
asce->val = vcpu->arch.sie_block->gcr[13];
return 0;
- case PSW_AS_ACCREG:
+ case PSW_BITS_AS_ACCREG:
rc = ar_translation(vcpu, asce, ar, mode);
if (rc > 0)
return trans_exc(vcpu, rc, ga, ar, mode, PROT_TYPE_ALC);
@@ -591,6 +596,7 @@ static int deref_table(struct kvm *kvm, unsigned long gpa, unsigned long *val)
* @gpa: points to where guest physical (absolute) address should be stored
* @asce: effective asce
* @mode: indicates the access mode to be used
+ * @prot: returns the type for protection exceptions
*
* Translate a guest virtual address into a guest absolute address by means
* of dynamic address translation as specified by the architecture.
@@ -606,22 +612,24 @@ static int deref_table(struct kvm *kvm, unsigned long gpa, unsigned long *val)
*/
static unsigned long guest_translate(struct kvm_vcpu *vcpu, unsigned long gva,
unsigned long *gpa, const union asce asce,
- enum gacc_mode mode)
+ enum gacc_mode mode, enum prot_type *prot)
{
union vaddress vaddr = {.addr = gva};
union raddress raddr = {.addr = gva};
union page_table_entry pte;
int dat_protection = 0;
+ int iep_protection = 0;
union ctlreg0 ctlreg0;
unsigned long ptr;
- int edat1, edat2;
+ int edat1, edat2, iep;
ctlreg0.val = vcpu->arch.sie_block->gcr[0];
edat1 = ctlreg0.edat && test_kvm_facility(vcpu->kvm, 8);
edat2 = edat1 && test_kvm_facility(vcpu->kvm, 78);
+ iep = ctlreg0.iep && test_kvm_facility(vcpu->kvm, 130);
if (asce.r)
goto real_address;
- ptr = asce.origin * 4096;
+ ptr = asce.origin * PAGE_SIZE;
switch (asce.dt) {
case ASCE_TYPE_REGION1:
if (vaddr.rfx01 > asce.tl)
@@ -666,7 +674,7 @@ static unsigned long guest_translate(struct kvm_vcpu *vcpu, unsigned long gva,
return PGM_REGION_SECOND_TRANS;
if (edat1)
dat_protection |= rfte.p;
- ptr = rfte.rto * 4096 + vaddr.rsx * 8;
+ ptr = rfte.rto * PAGE_SIZE + vaddr.rsx * 8;
}
/* fallthrough */
case ASCE_TYPE_REGION2: {
@@ -684,7 +692,7 @@ static unsigned long guest_translate(struct kvm_vcpu *vcpu, unsigned long gva,
return PGM_REGION_THIRD_TRANS;
if (edat1)
dat_protection |= rste.p;
- ptr = rste.rto * 4096 + vaddr.rtx * 8;
+ ptr = rste.rto * PAGE_SIZE + vaddr.rtx * 8;
}
/* fallthrough */
case ASCE_TYPE_REGION3: {
@@ -702,6 +710,7 @@ static unsigned long guest_translate(struct kvm_vcpu *vcpu, unsigned long gva,
return PGM_TRANSLATION_SPEC;
if (rtte.fc && edat2) {
dat_protection |= rtte.fc1.p;
+ iep_protection = rtte.fc1.iep;
raddr.rfaa = rtte.fc1.rfaa;
goto absolute_address;
}
@@ -711,7 +720,7 @@ static unsigned long guest_translate(struct kvm_vcpu *vcpu, unsigned long gva,
return PGM_SEGMENT_TRANSLATION;
if (edat1)
dat_protection |= rtte.fc0.p;
- ptr = rtte.fc0.sto * 4096 + vaddr.sx * 8;
+ ptr = rtte.fc0.sto * PAGE_SIZE + vaddr.sx * 8;
}
/* fallthrough */
case ASCE_TYPE_SEGMENT: {
@@ -729,11 +738,12 @@ static unsigned long guest_translate(struct kvm_vcpu *vcpu, unsigned long gva,
return PGM_TRANSLATION_SPEC;
if (ste.fc && edat1) {
dat_protection |= ste.fc1.p;
+ iep_protection = ste.fc1.iep;
raddr.sfaa = ste.fc1.sfaa;
goto absolute_address;
}
dat_protection |= ste.fc0.p;
- ptr = ste.fc0.pto * 2048 + vaddr.px * 8;
+ ptr = ste.fc0.pto * (PAGE_SIZE / 2) + vaddr.px * 8;
}
}
if (kvm_is_error_gpa(vcpu->kvm, ptr))
@@ -745,12 +755,19 @@ static unsigned long guest_translate(struct kvm_vcpu *vcpu, unsigned long gva,
if (pte.z)
return PGM_TRANSLATION_SPEC;
dat_protection |= pte.p;
+ iep_protection = pte.iep;
raddr.pfra = pte.pfra;
real_address:
raddr.addr = kvm_s390_real_to_abs(vcpu, raddr.addr);
absolute_address:
- if (mode == GACC_STORE && dat_protection)
+ if (mode == GACC_STORE && dat_protection) {
+ *prot = PROT_TYPE_DAT;
return PGM_PROTECTION;
+ }
+ if (mode == GACC_IFETCH && iep_protection && iep) {
+ *prot = PROT_TYPE_IEP;
+ return PGM_PROTECTION;
+ }
if (kvm_is_error_gpa(vcpu->kvm, raddr.addr))
return PGM_ADDRESSING;
*gpa = raddr.addr;
@@ -771,7 +788,7 @@ static int low_address_protection_enabled(struct kvm_vcpu *vcpu,
if (!ctlreg0.lap)
return 0;
- if (psw_bits(*psw).t && asce.p)
+ if (psw_bits(*psw).dat && asce.p)
return 0;
return 1;
}
@@ -782,6 +799,7 @@ static int guest_page_range(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
{
psw_t *psw = &vcpu->arch.sie_block->gpsw;
int lap_enabled, rc = 0;
+ enum prot_type prot;
lap_enabled = low_address_protection_enabled(vcpu, asce);
while (nr_pages) {
@@ -790,8 +808,8 @@ static int guest_page_range(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
return trans_exc(vcpu, PGM_PROTECTION, ga, ar, mode,
PROT_TYPE_LA);
ga &= PAGE_MASK;
- if (psw_bits(*psw).t) {
- rc = guest_translate(vcpu, ga, pages, asce, mode);
+ if (psw_bits(*psw).dat) {
+ rc = guest_translate(vcpu, ga, pages, asce, mode, &prot);
if (rc < 0)
return rc;
} else {
@@ -800,7 +818,7 @@ static int guest_page_range(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
rc = PGM_ADDRESSING;
}
if (rc)
- return trans_exc(vcpu, rc, ga, ar, mode, PROT_TYPE_DAT);
+ return trans_exc(vcpu, rc, ga, ar, mode, prot);
ga += PAGE_SIZE;
pages++;
nr_pages--;
@@ -831,7 +849,7 @@ int access_guest(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar, void *data,
pages = vmalloc(nr_pages * sizeof(unsigned long));
if (!pages)
return -ENOMEM;
- need_ipte_lock = psw_bits(*psw).t && !asce.r;
+ need_ipte_lock = psw_bits(*psw).dat && !asce.r;
if (need_ipte_lock)
ipte_lock(vcpu);
rc = guest_page_range(vcpu, ga, ar, pages, nr_pages, asce, mode);
@@ -886,6 +904,7 @@ int guest_translate_address(struct kvm_vcpu *vcpu, unsigned long gva, u8 ar,
unsigned long *gpa, enum gacc_mode mode)
{
psw_t *psw = &vcpu->arch.sie_block->gpsw;
+ enum prot_type prot;
union asce asce;
int rc;
@@ -899,10 +918,10 @@ int guest_translate_address(struct kvm_vcpu *vcpu, unsigned long gva, u8 ar,
mode, PROT_TYPE_LA);
}
- if (psw_bits(*psw).t && !asce.r) { /* Use DAT? */
- rc = guest_translate(vcpu, gva, gpa, asce, mode);
+ if (psw_bits(*psw).dat && !asce.r) { /* Use DAT? */
+ rc = guest_translate(vcpu, gva, gpa, asce, mode, &prot);
if (rc > 0)
- return trans_exc(vcpu, rc, gva, 0, mode, PROT_TYPE_DAT);
+ return trans_exc(vcpu, rc, gva, 0, mode, prot);
} else {
*gpa = kvm_s390_real_to_abs(vcpu, gva);
if (kvm_is_error_gpa(vcpu->kvm, *gpa))
@@ -974,7 +993,7 @@ static int kvm_s390_shadow_tables(struct gmap *sg, unsigned long saddr,
parent = sg->parent;
vaddr.addr = saddr;
asce.val = sg->orig_asce;
- ptr = asce.origin * 4096;
+ ptr = asce.origin * PAGE_SIZE;
if (asce.r) {
*fake = 1;
ptr = 0;
@@ -1010,7 +1029,7 @@ static int kvm_s390_shadow_tables(struct gmap *sg, unsigned long saddr,
union region1_table_entry rfte;
if (*fake) {
- ptr += (unsigned long) vaddr.rfx << 53;
+ ptr += vaddr.rfx * _REGION1_SIZE;
rfte.val = ptr;
goto shadow_r2t;
}
@@ -1025,7 +1044,7 @@ static int kvm_s390_shadow_tables(struct gmap *sg, unsigned long saddr,
return PGM_REGION_SECOND_TRANS;
if (sg->edat_level >= 1)
*dat_protection |= rfte.p;
- ptr = rfte.rto << 12UL;
+ ptr = rfte.rto * PAGE_SIZE;
shadow_r2t:
rc = gmap_shadow_r2t(sg, saddr, rfte.val, *fake);
if (rc)
@@ -1036,7 +1055,7 @@ shadow_r2t:
union region2_table_entry rste;
if (*fake) {
- ptr += (unsigned long) vaddr.rsx << 42;
+ ptr += vaddr.rsx * _REGION2_SIZE;
rste.val = ptr;
goto shadow_r3t;
}
@@ -1051,7 +1070,7 @@ shadow_r2t:
return PGM_REGION_THIRD_TRANS;
if (sg->edat_level >= 1)
*dat_protection |= rste.p;
- ptr = rste.rto << 12UL;
+ ptr = rste.rto * PAGE_SIZE;
shadow_r3t:
rste.p |= *dat_protection;
rc = gmap_shadow_r3t(sg, saddr, rste.val, *fake);
@@ -1063,7 +1082,7 @@ shadow_r3t:
union region3_table_entry rtte;
if (*fake) {
- ptr += (unsigned long) vaddr.rtx << 31;
+ ptr += vaddr.rtx * _REGION3_SIZE;
rtte.val = ptr;
goto shadow_sgt;
}
@@ -1079,7 +1098,7 @@ shadow_r3t:
if (rtte.fc && sg->edat_level >= 2) {
*dat_protection |= rtte.fc0.p;
*fake = 1;
- ptr = rtte.fc1.rfaa << 31UL;
+ ptr = rtte.fc1.rfaa * _REGION3_SIZE;
rtte.val = ptr;
goto shadow_sgt;
}
@@ -1087,7 +1106,7 @@ shadow_r3t:
return PGM_SEGMENT_TRANSLATION;
if (sg->edat_level >= 1)
*dat_protection |= rtte.fc0.p;
- ptr = rtte.fc0.sto << 12UL;
+ ptr = rtte.fc0.sto * PAGE_SIZE;
shadow_sgt:
rtte.fc0.p |= *dat_protection;
rc = gmap_shadow_sgt(sg, saddr, rtte.val, *fake);
@@ -1099,7 +1118,7 @@ shadow_sgt:
union segment_table_entry ste;
if (*fake) {
- ptr += (unsigned long) vaddr.sx << 20;
+ ptr += vaddr.sx * _SEGMENT_SIZE;
ste.val = ptr;
goto shadow_pgt;
}
@@ -1115,11 +1134,11 @@ shadow_sgt:
*dat_protection |= ste.fc0.p;
if (ste.fc && sg->edat_level >= 1) {
*fake = 1;
- ptr = ste.fc1.sfaa << 20UL;
+ ptr = ste.fc1.sfaa * _SEGMENT_SIZE;
ste.val = ptr;
goto shadow_pgt;
}
- ptr = ste.fc0.pto << 11UL;
+ ptr = ste.fc0.pto * (PAGE_SIZE / 2);
shadow_pgt:
ste.fc0.p |= *dat_protection;
rc = gmap_shadow_pgt(sg, saddr, ste.val, *fake);
@@ -1168,8 +1187,7 @@ int kvm_s390_shadow_fault(struct kvm_vcpu *vcpu, struct gmap *sg,
vaddr.addr = saddr;
if (fake) {
- /* offset in 1MB guest memory block */
- pte.val = pgt + ((unsigned long) vaddr.px << 12UL);
+ pte.val = pgt + vaddr.px * PAGE_SIZE;
goto shadow_page;
}
if (!rc)
diff --git a/arch/s390/kvm/gaccess.h b/arch/s390/kvm/gaccess.h
index 7ce47fd36f28..bec42b852246 100644
--- a/arch/s390/kvm/gaccess.h
+++ b/arch/s390/kvm/gaccess.h
@@ -57,9 +57,9 @@ static inline unsigned long kvm_s390_logical_to_effective(struct kvm_vcpu *vcpu,
{
psw_t *psw = &vcpu->arch.sie_block->gpsw;
- if (psw_bits(*psw).eaba == PSW_AMODE_64BIT)
+ if (psw_bits(*psw).eaba == PSW_BITS_AMODE_64BIT)
return ga;
- if (psw_bits(*psw).eaba == PSW_AMODE_31BIT)
+ if (psw_bits(*psw).eaba == PSW_BITS_AMODE_31BIT)
return ga & ((1UL << 31) - 1);
return ga & ((1UL << 24) - 1);
}
diff --git a/arch/s390/kvm/guestdbg.c b/arch/s390/kvm/guestdbg.c
index 23d9a4e12da1..bcbd86621d01 100644
--- a/arch/s390/kvm/guestdbg.c
+++ b/arch/s390/kvm/guestdbg.c
@@ -308,7 +308,7 @@ static inline int in_addr_range(u64 addr, u64 a, u64 b)
return (addr >= a) && (addr <= b);
else
/* "overflowing" interval */
- return (addr <= a) && (addr >= b);
+ return (addr >= a) || (addr <= b);
}
#define end_of_range(bp_info) (bp_info->addr + bp_info->len - 1)
@@ -613,15 +613,15 @@ int kvm_s390_handle_per_event(struct kvm_vcpu *vcpu)
* instruction. Check primary and home space-switch-event
* controls. (theoretically home -> home produced no event)
*/
- if (((new_as == PSW_AS_HOME) ^ old_as_is_home(vcpu)) &&
- (pssec(vcpu) || hssec(vcpu)))
+ if (((new_as == PSW_BITS_AS_HOME) ^ old_as_is_home(vcpu)) &&
+ (pssec(vcpu) || hssec(vcpu)))
vcpu->arch.sie_block->iprcc = PGM_SPACE_SWITCH;
/*
* PT, PTI, PR, PC instruction operate on primary AS only. Check
* if the primary-space-switch-event control was or got set.
*/
- if (new_as == PSW_AS_PRIMARY && !old_as_is_home(vcpu) &&
+ if (new_as == PSW_BITS_AS_PRIMARY && !old_as_is_home(vcpu) &&
(pssec(vcpu) || old_ssec(vcpu)))
vcpu->arch.sie_block->iprcc = PGM_SPACE_SWITCH;
}
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 2d120fef7d90..a832ad031cee 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -251,8 +251,13 @@ static unsigned long deliverable_irqs(struct kvm_vcpu *vcpu)
__clear_bit(IRQ_PEND_EXT_SERVICE, &active_mask);
if (psw_mchk_disabled(vcpu))
active_mask &= ~IRQ_PEND_MCHK_MASK;
+ /*
+ * Check both floating and local interrupt's cr14 because
+ * bit IRQ_PEND_MCHK_REP could be set in both cases.
+ */
if (!(vcpu->arch.sie_block->gcr[14] &
- vcpu->kvm->arch.float_int.mchk.cr14))
+ (vcpu->kvm->arch.float_int.mchk.cr14 |
+ vcpu->arch.local_int.irq.mchk.cr14)))
__clear_bit(IRQ_PEND_MCHK_REP, &active_mask);
/*
@@ -1876,6 +1881,28 @@ out:
return ret < 0 ? ret : n;
}
+static int flic_ais_mode_get_all(struct kvm *kvm, struct kvm_device_attr *attr)
+{
+ struct kvm_s390_float_interrupt *fi = &kvm->arch.float_int;
+ struct kvm_s390_ais_all ais;
+
+ if (attr->attr < sizeof(ais))
+ return -EINVAL;
+
+ if (!test_kvm_facility(kvm, 72))
+ return -ENOTSUPP;
+
+ mutex_lock(&fi->ais_lock);
+ ais.simm = fi->simm;
+ ais.nimm = fi->nimm;
+ mutex_unlock(&fi->ais_lock);
+
+ if (copy_to_user((void __user *)attr->addr, &ais, sizeof(ais)))
+ return -EFAULT;
+
+ return 0;
+}
+
static int flic_get_attr(struct kvm_device *dev, struct kvm_device_attr *attr)
{
int r;
@@ -1885,6 +1912,9 @@ static int flic_get_attr(struct kvm_device *dev, struct kvm_device_attr *attr)
r = get_all_floating_irqs(dev->kvm, (u8 __user *) attr->addr,
attr->attr);
break;
+ case KVM_DEV_FLIC_AISM_ALL:
+ r = flic_ais_mode_get_all(dev->kvm, attr);
+ break;
default:
r = -EINVAL;
}
@@ -2235,6 +2265,25 @@ static int flic_inject_airq(struct kvm *kvm, struct kvm_device_attr *attr)
return kvm_s390_inject_airq(kvm, adapter);
}
+static int flic_ais_mode_set_all(struct kvm *kvm, struct kvm_device_attr *attr)
+{
+ struct kvm_s390_float_interrupt *fi = &kvm->arch.float_int;
+ struct kvm_s390_ais_all ais;
+
+ if (!test_kvm_facility(kvm, 72))
+ return -ENOTSUPP;
+
+ if (copy_from_user(&ais, (void __user *)attr->addr, sizeof(ais)))
+ return -EFAULT;
+
+ mutex_lock(&fi->ais_lock);
+ fi->simm = ais.simm;
+ fi->nimm = ais.nimm;
+ mutex_unlock(&fi->ais_lock);
+
+ return 0;
+}
+
static int flic_set_attr(struct kvm_device *dev, struct kvm_device_attr *attr)
{
int r = 0;
@@ -2277,6 +2326,9 @@ static int flic_set_attr(struct kvm_device *dev, struct kvm_device_attr *attr)
case KVM_DEV_FLIC_AIRQ_INJECT:
r = flic_inject_airq(dev->kvm, attr);
break;
+ case KVM_DEV_FLIC_AISM_ALL:
+ r = flic_ais_mode_set_all(dev->kvm, attr);
+ break;
default:
r = -EINVAL;
}
@@ -2298,6 +2350,7 @@ static int flic_has_attr(struct kvm_device *dev,
case KVM_DEV_FLIC_CLEAR_IO_IRQ:
case KVM_DEV_FLIC_AISM:
case KVM_DEV_FLIC_AIRQ_INJECT:
+ case KVM_DEV_FLIC_AISM_ALL:
return 0;
}
return -ENXIO;
@@ -2415,6 +2468,44 @@ static int set_adapter_int(struct kvm_kernel_irq_routing_entry *e,
return ret;
}
+/*
+ * Inject the machine check to the guest.
+ */
+void kvm_s390_reinject_machine_check(struct kvm_vcpu *vcpu,
+ struct mcck_volatile_info *mcck_info)
+{
+ struct kvm_s390_interrupt_info inti;
+ struct kvm_s390_irq irq;
+ struct kvm_s390_mchk_info *mchk;
+ union mci mci;
+ __u64 cr14 = 0; /* upper bits are not used */
+ int rc;
+
+ mci.val = mcck_info->mcic;
+ if (mci.sr)
+ cr14 |= MCCK_CR14_RECOVERY_SUB_MASK;
+ if (mci.dg)
+ cr14 |= MCCK_CR14_DEGRAD_SUB_MASK;
+ if (mci.w)
+ cr14 |= MCCK_CR14_WARN_SUB_MASK;
+
+ mchk = mci.ck ? &inti.mchk : &irq.u.mchk;
+ mchk->cr14 = cr14;
+ mchk->mcic = mcck_info->mcic;
+ mchk->ext_damage_code = mcck_info->ext_damage_code;
+ mchk->failing_storage_address = mcck_info->failing_storage_address;
+ if (mci.ck) {
+ /* Inject the floating machine check */
+ inti.type = KVM_S390_MCHK;
+ rc = __inject_vm(vcpu->kvm, &inti);
+ } else {
+ /* Inject the machine check to specified vcpu */
+ irq.type = KVM_S390_MCHK;
+ rc = kvm_s390_inject_vcpu(vcpu, &irq);
+ }
+ WARN_ON_ONCE(rc);
+}
+
int kvm_set_routing_entry(struct kvm *kvm,
struct kvm_kernel_irq_routing_entry *e,
const struct kvm_irq_routing_entry *ue)
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index f28e2e776931..40d0a1a97889 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -30,6 +30,7 @@
#include <linux/vmalloc.h>
#include <linux/bitmap.h>
#include <linux/sched/signal.h>
+#include <linux/string.h>
#include <asm/asm-offsets.h>
#include <asm/lowcore.h>
@@ -129,6 +130,12 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
{ NULL }
};
+struct kvm_s390_tod_clock_ext {
+ __u8 epoch_idx;
+ __u64 tod;
+ __u8 reserved[7];
+} __packed;
+
/* allow nested virtualization in KVM (if enabled by user space) */
static int nested;
module_param(nested, int, S_IRUGO);
@@ -386,6 +393,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
case KVM_CAP_S390_SKEYS:
case KVM_CAP_S390_IRQ_STATE:
case KVM_CAP_S390_USER_INSTR0:
+ case KVM_CAP_S390_CMMA_MIGRATION:
case KVM_CAP_S390_AIS:
r = 1;
break;
@@ -749,6 +757,149 @@ static int kvm_s390_vm_set_crypto(struct kvm *kvm, struct kvm_device_attr *attr)
return 0;
}
+static void kvm_s390_sync_request_broadcast(struct kvm *kvm, int req)
+{
+ int cx;
+ struct kvm_vcpu *vcpu;
+
+ kvm_for_each_vcpu(cx, vcpu, kvm)
+ kvm_s390_sync_request(req, vcpu);
+}
+
+/*
+ * Must be called with kvm->srcu held to avoid races on memslots, and with
+ * kvm->lock to avoid races with ourselves and kvm_s390_vm_stop_migration.
+ */
+static int kvm_s390_vm_start_migration(struct kvm *kvm)
+{
+ struct kvm_s390_migration_state *mgs;
+ struct kvm_memory_slot *ms;
+ /* should be the only one */
+ struct kvm_memslots *slots;
+ unsigned long ram_pages;
+ int slotnr;
+
+ /* migration mode already enabled */
+ if (kvm->arch.migration_state)
+ return 0;
+
+ slots = kvm_memslots(kvm);
+ if (!slots || !slots->used_slots)
+ return -EINVAL;
+
+ mgs = kzalloc(sizeof(*mgs), GFP_KERNEL);
+ if (!mgs)
+ return -ENOMEM;
+ kvm->arch.migration_state = mgs;
+
+ if (kvm->arch.use_cmma) {
+ /*
+ * Get the last slot. They should be sorted by base_gfn, so the
+ * last slot is also the one at the end of the address space.
+ * We have verified above that at least one slot is present.
+ */
+ ms = slots->memslots + slots->used_slots - 1;
+ /* round up so we only use full longs */
+ ram_pages = roundup(ms->base_gfn + ms->npages, BITS_PER_LONG);
+ /* allocate enough bytes to store all the bits */
+ mgs->pgste_bitmap = vmalloc(ram_pages / 8);
+ if (!mgs->pgste_bitmap) {
+ kfree(mgs);
+ kvm->arch.migration_state = NULL;
+ return -ENOMEM;
+ }
+
+ mgs->bitmap_size = ram_pages;
+ atomic64_set(&mgs->dirty_pages, ram_pages);
+ /* mark all the pages in active slots as dirty */
+ for (slotnr = 0; slotnr < slots->used_slots; slotnr++) {
+ ms = slots->memslots + slotnr;
+ bitmap_set(mgs->pgste_bitmap, ms->base_gfn, ms->npages);
+ }
+
+ kvm_s390_sync_request_broadcast(kvm, KVM_REQ_START_MIGRATION);
+ }
+ return 0;
+}
+
+/*
+ * Must be called with kvm->lock to avoid races with ourselves and
+ * kvm_s390_vm_start_migration.
+ */
+static int kvm_s390_vm_stop_migration(struct kvm *kvm)
+{
+ struct kvm_s390_migration_state *mgs;
+
+ /* migration mode already disabled */
+ if (!kvm->arch.migration_state)
+ return 0;
+ mgs = kvm->arch.migration_state;
+ kvm->arch.migration_state = NULL;
+
+ if (kvm->arch.use_cmma) {
+ kvm_s390_sync_request_broadcast(kvm, KVM_REQ_STOP_MIGRATION);
+ vfree(mgs->pgste_bitmap);
+ }
+ kfree(mgs);
+ return 0;
+}
+
+static int kvm_s390_vm_set_migration(struct kvm *kvm,
+ struct kvm_device_attr *attr)
+{
+ int idx, res = -ENXIO;
+
+ mutex_lock(&kvm->lock);
+ switch (attr->attr) {
+ case KVM_S390_VM_MIGRATION_START:
+ idx = srcu_read_lock(&kvm->srcu);
+ res = kvm_s390_vm_start_migration(kvm);
+ srcu_read_unlock(&kvm->srcu, idx);
+ break;
+ case KVM_S390_VM_MIGRATION_STOP:
+ res = kvm_s390_vm_stop_migration(kvm);
+ break;
+ default:
+ break;
+ }
+ mutex_unlock(&kvm->lock);
+
+ return res;
+}
+
+static int kvm_s390_vm_get_migration(struct kvm *kvm,
+ struct kvm_device_attr *attr)
+{
+ u64 mig = (kvm->arch.migration_state != NULL);
+
+ if (attr->attr != KVM_S390_VM_MIGRATION_STATUS)
+ return -ENXIO;
+
+ if (copy_to_user((void __user *)attr->addr, &mig, sizeof(mig)))
+ return -EFAULT;
+ return 0;
+}
+
+static int kvm_s390_set_tod_ext(struct kvm *kvm, struct kvm_device_attr *attr)
+{
+ struct kvm_s390_vm_tod_clock gtod;
+
+ if (copy_from_user(&gtod, (void __user *)attr->addr, sizeof(gtod)))
+ return -EFAULT;
+
+ if (test_kvm_facility(kvm, 139))
+ kvm_s390_set_tod_clock_ext(kvm, &gtod);
+ else if (gtod.epoch_idx == 0)
+ kvm_s390_set_tod_clock(kvm, gtod.tod);
+ else
+ return -EINVAL;
+
+ VM_EVENT(kvm, 3, "SET: TOD extension: 0x%x, TOD base: 0x%llx",
+ gtod.epoch_idx, gtod.tod);
+
+ return 0;
+}
+
static int kvm_s390_set_tod_high(struct kvm *kvm, struct kvm_device_attr *attr)
{
u8 gtod_high;
@@ -784,6 +935,9 @@ static int kvm_s390_set_tod(struct kvm *kvm, struct kvm_device_attr *attr)
return -EINVAL;
switch (attr->attr) {
+ case KVM_S390_VM_TOD_EXT:
+ ret = kvm_s390_set_tod_ext(kvm, attr);
+ break;
case KVM_S390_VM_TOD_HIGH:
ret = kvm_s390_set_tod_high(kvm, attr);
break;
@@ -797,6 +951,43 @@ static int kvm_s390_set_tod(struct kvm *kvm, struct kvm_device_attr *attr)
return ret;
}
+static void kvm_s390_get_tod_clock_ext(struct kvm *kvm,
+ struct kvm_s390_vm_tod_clock *gtod)
+{
+ struct kvm_s390_tod_clock_ext htod;
+
+ preempt_disable();
+
+ get_tod_clock_ext((char *)&htod);
+
+ gtod->tod = htod.tod + kvm->arch.epoch;
+ gtod->epoch_idx = htod.epoch_idx + kvm->arch.epdx;
+
+ if (gtod->tod < htod.tod)
+ gtod->epoch_idx += 1;
+
+ preempt_enable();
+}
+
+static int kvm_s390_get_tod_ext(struct kvm *kvm, struct kvm_device_attr *attr)
+{
+ struct kvm_s390_vm_tod_clock gtod;
+
+ memset(&gtod, 0, sizeof(gtod));
+
+ if (test_kvm_facility(kvm, 139))
+ kvm_s390_get_tod_clock_ext(kvm, &gtod);
+ else
+ gtod.tod = kvm_s390_get_tod_clock_fast(kvm);
+
+ if (copy_to_user((void __user *)attr->addr, &gtod, sizeof(gtod)))
+ return -EFAULT;
+
+ VM_EVENT(kvm, 3, "QUERY: TOD extension: 0x%x, TOD base: 0x%llx",
+ gtod.epoch_idx, gtod.tod);
+ return 0;
+}
+
static int kvm_s390_get_tod_high(struct kvm *kvm, struct kvm_device_attr *attr)
{
u8 gtod_high = 0;
@@ -829,6 +1020,9 @@ static int kvm_s390_get_tod(struct kvm *kvm, struct kvm_device_attr *attr)
return -EINVAL;
switch (attr->attr) {
+ case KVM_S390_VM_TOD_EXT:
+ ret = kvm_s390_get_tod_ext(kvm, attr);
+ break;
case KVM_S390_VM_TOD_HIGH:
ret = kvm_s390_get_tod_high(kvm, attr);
break;
@@ -1089,6 +1283,9 @@ static int kvm_s390_vm_set_attr(struct kvm *kvm, struct kvm_device_attr *attr)
case KVM_S390_VM_CRYPTO:
ret = kvm_s390_vm_set_crypto(kvm, attr);
break;
+ case KVM_S390_VM_MIGRATION:
+ ret = kvm_s390_vm_set_migration(kvm, attr);
+ break;
default:
ret = -ENXIO;
break;
@@ -1111,6 +1308,9 @@ static int kvm_s390_vm_get_attr(struct kvm *kvm, struct kvm_device_attr *attr)
case KVM_S390_VM_CPU_MODEL:
ret = kvm_s390_get_cpu_model(kvm, attr);
break;
+ case KVM_S390_VM_MIGRATION:
+ ret = kvm_s390_vm_get_migration(kvm, attr);
+ break;
default:
ret = -ENXIO;
break;
@@ -1178,6 +1378,9 @@ static int kvm_s390_vm_has_attr(struct kvm *kvm, struct kvm_device_attr *attr)
break;
}
break;
+ case KVM_S390_VM_MIGRATION:
+ ret = 0;
+ break;
default:
ret = -ENXIO;
break;
@@ -1190,7 +1393,7 @@ static long kvm_s390_get_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
{
uint8_t *keys;
uint64_t hva;
- int i, r = 0;
+ int srcu_idx, i, r = 0;
if (args->flags != 0)
return -EINVAL;
@@ -1208,6 +1411,7 @@ static long kvm_s390_get_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
return -ENOMEM;
down_read(&current->mm->mmap_sem);
+ srcu_idx = srcu_read_lock(&kvm->srcu);
for (i = 0; i < args->count; i++) {
hva = gfn_to_hva(kvm, args->start_gfn + i);
if (kvm_is_error_hva(hva)) {
@@ -1219,6 +1423,7 @@ static long kvm_s390_get_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
if (r)
break;
}
+ srcu_read_unlock(&kvm->srcu, srcu_idx);
up_read(&current->mm->mmap_sem);
if (!r) {
@@ -1236,7 +1441,7 @@ static long kvm_s390_set_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
{
uint8_t *keys;
uint64_t hva;
- int i, r = 0;
+ int srcu_idx, i, r = 0;
if (args->flags != 0)
return -EINVAL;
@@ -1262,6 +1467,7 @@ static long kvm_s390_set_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
goto out;
down_read(&current->mm->mmap_sem);
+ srcu_idx = srcu_read_lock(&kvm->srcu);
for (i = 0; i < args->count; i++) {
hva = gfn_to_hva(kvm, args->start_gfn + i);
if (kvm_is_error_hva(hva)) {
@@ -1279,12 +1485,189 @@ static long kvm_s390_set_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
if (r)
break;
}
+ srcu_read_unlock(&kvm->srcu, srcu_idx);
up_read(&current->mm->mmap_sem);
out:
kvfree(keys);
return r;
}
+/*
+ * Base address and length must be sent at the start of each block, therefore
+ * it's cheaper to send some clean data, as long as it's less than the size of
+ * two longs.
+ */
+#define KVM_S390_MAX_BIT_DISTANCE (2 * sizeof(void *))
+/* for consistency */
+#define KVM_S390_CMMA_SIZE_MAX ((u32)KVM_S390_SKEYS_MAX)
+
+/*
+ * This function searches for the next page with dirty CMMA attributes, and
+ * saves the attributes in the buffer up to either the end of the buffer or
+ * until a block of at least KVM_S390_MAX_BIT_DISTANCE clean bits is found;
+ * no trailing clean bytes are saved.
+ * In case no dirty bits were found, or if CMMA was not enabled or used, the
+ * output buffer will indicate 0 as length.
+ */
+static int kvm_s390_get_cmma_bits(struct kvm *kvm,
+ struct kvm_s390_cmma_log *args)
+{
+ struct kvm_s390_migration_state *s = kvm->arch.migration_state;
+ unsigned long bufsize, hva, pgstev, i, next, cur;
+ int srcu_idx, peek, r = 0, rr;
+ u8 *res;
+
+ cur = args->start_gfn;
+ i = next = pgstev = 0;
+
+ if (unlikely(!kvm->arch.use_cmma))
+ return -ENXIO;
+ /* Invalid/unsupported flags were specified */
+ if (args->flags & ~KVM_S390_CMMA_PEEK)
+ return -EINVAL;
+ /* Migration mode query, and we are not doing a migration */
+ peek = !!(args->flags & KVM_S390_CMMA_PEEK);
+ if (!peek && !s)
+ return -EINVAL;
+ /* CMMA is disabled or was not used, or the buffer has length zero */
+ bufsize = min(args->count, KVM_S390_CMMA_SIZE_MAX);
+ if (!bufsize || !kvm->mm->context.use_cmma) {
+ memset(args, 0, sizeof(*args));
+ return 0;
+ }
+
+ if (!peek) {
+ /* We are not peeking, and there are no dirty pages */
+ if (!atomic64_read(&s->dirty_pages)) {
+ memset(args, 0, sizeof(*args));
+ return 0;
+ }
+ cur = find_next_bit(s->pgste_bitmap, s->bitmap_size,
+ args->start_gfn);
+ if (cur >= s->bitmap_size) /* nothing found, loop back */
+ cur = find_next_bit(s->pgste_bitmap, s->bitmap_size, 0);
+ if (cur >= s->bitmap_size) { /* again! (very unlikely) */
+ memset(args, 0, sizeof(*args));
+ return 0;
+ }
+ next = find_next_bit(s->pgste_bitmap, s->bitmap_size, cur + 1);
+ }
+
+ res = vmalloc(bufsize);
+ if (!res)
+ return -ENOMEM;
+
+ args->start_gfn = cur;
+
+ down_read(&kvm->mm->mmap_sem);
+ srcu_idx = srcu_read_lock(&kvm->srcu);
+ while (i < bufsize) {
+ hva = gfn_to_hva(kvm, cur);
+ if (kvm_is_error_hva(hva)) {
+ r = -EFAULT;
+ break;
+ }
+ /* decrement only if we actually flipped the bit to 0 */
+ if (!peek && test_and_clear_bit(cur, s->pgste_bitmap))
+ atomic64_dec(&s->dirty_pages);
+ r = get_pgste(kvm->mm, hva, &pgstev);
+ if (r < 0)
+ pgstev = 0;
+ /* save the value */
+ res[i++] = (pgstev >> 24) & 0x43;
+ /*
+ * if the next bit is too far away, stop.
+ * if we reached the previous "next", find the next one
+ */
+ if (!peek) {
+ if (next > cur + KVM_S390_MAX_BIT_DISTANCE)
+ break;
+ if (cur == next)
+ next = find_next_bit(s->pgste_bitmap,
+ s->bitmap_size, cur + 1);
+ /* reached the end of the bitmap or of the buffer, stop */
+ if ((next >= s->bitmap_size) ||
+ (next >= args->start_gfn + bufsize))
+ break;
+ }
+ cur++;
+ }
+ srcu_read_unlock(&kvm->srcu, srcu_idx);
+ up_read(&kvm->mm->mmap_sem);
+ args->count = i;
+ args->remaining = s ? atomic64_read(&s->dirty_pages) : 0;
+
+ rr = copy_to_user((void __user *)args->values, res, args->count);
+ if (rr)
+ r = -EFAULT;
+
+ vfree(res);
+ return r;
+}
+
+/*
+ * This function sets the CMMA attributes for the given pages. If the input
+ * buffer has zero length, no action is taken, otherwise the attributes are
+ * set and the mm->context.use_cmma flag is set.
+ */
+static int kvm_s390_set_cmma_bits(struct kvm *kvm,
+ const struct kvm_s390_cmma_log *args)
+{
+ unsigned long hva, mask, pgstev, i;
+ uint8_t *bits;
+ int srcu_idx, r = 0;
+
+ mask = args->mask;
+
+ if (!kvm->arch.use_cmma)
+ return -ENXIO;
+ /* invalid/unsupported flags */
+ if (args->flags != 0)
+ return -EINVAL;
+ /* Enforce sane limit on memory allocation */
+ if (args->count > KVM_S390_CMMA_SIZE_MAX)
+ return -EINVAL;
+ /* Nothing to do */
+ if (args->count == 0)
+ return 0;
+
+ bits = vmalloc(sizeof(*bits) * args->count);
+ if (!bits)
+ return -ENOMEM;
+
+ r = copy_from_user(bits, (void __user *)args->values, args->count);
+ if (r) {
+ r = -EFAULT;
+ goto out;
+ }
+
+ down_read(&kvm->mm->mmap_sem);
+ srcu_idx = srcu_read_lock(&kvm->srcu);
+ for (i = 0; i < args->count; i++) {
+ hva = gfn_to_hva(kvm, args->start_gfn + i);
+ if (kvm_is_error_hva(hva)) {
+ r = -EFAULT;
+ break;
+ }
+
+ pgstev = bits[i];
+ pgstev = pgstev << 24;
+ mask &= _PGSTE_GPS_USAGE_MASK | _PGSTE_GPS_NODAT;
+ set_pgste_bits(kvm->mm, hva, mask, pgstev);
+ }
+ srcu_read_unlock(&kvm->srcu, srcu_idx);
+ up_read(&kvm->mm->mmap_sem);
+
+ if (!kvm->mm->context.use_cmma) {
+ down_write(&kvm->mm->mmap_sem);
+ kvm->mm->context.use_cmma = 1;
+ up_write(&kvm->mm->mmap_sem);
+ }
+out:
+ vfree(bits);
+ return r;
+}
+
long kvm_arch_vm_ioctl(struct file *filp,
unsigned int ioctl, unsigned long arg)
{
@@ -1363,6 +1746,29 @@ long kvm_arch_vm_ioctl(struct file *filp,
r = kvm_s390_set_skeys(kvm, &args);
break;
}
+ case KVM_S390_GET_CMMA_BITS: {
+ struct kvm_s390_cmma_log args;
+
+ r = -EFAULT;
+ if (copy_from_user(&args, argp, sizeof(args)))
+ break;
+ r = kvm_s390_get_cmma_bits(kvm, &args);
+ if (!r) {
+ r = copy_to_user(argp, &args, sizeof(args));
+ if (r)
+ r = -EFAULT;
+ }
+ break;
+ }
+ case KVM_S390_SET_CMMA_BITS: {
+ struct kvm_s390_cmma_log args;
+
+ r = -EFAULT;
+ if (copy_from_user(&args, argp, sizeof(args)))
+ break;
+ r = kvm_s390_set_cmma_bits(kvm, &args);
+ break;
+ }
default:
r = -ENOTTY;
}
@@ -1521,8 +1927,16 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
memcpy(kvm->arch.model.fac_list, kvm->arch.model.fac_mask,
S390_ARCH_FAC_LIST_SIZE_BYTE);
+ /* we are always in czam mode - even on pre z14 machines */
+ set_kvm_facility(kvm->arch.model.fac_mask, 138);
+ set_kvm_facility(kvm->arch.model.fac_list, 138);
+ /* we emulate STHYI in kvm */
set_kvm_facility(kvm->arch.model.fac_mask, 74);
set_kvm_facility(kvm->arch.model.fac_list, 74);
+ if (MACHINE_HAS_TLB_GUEST) {
+ set_kvm_facility(kvm->arch.model.fac_mask, 147);
+ set_kvm_facility(kvm->arch.model.fac_list, 147);
+ }
kvm->arch.model.cpuid = kvm_s390_get_initial_cpuid();
kvm->arch.model.ibc = sclp.ibc & 0x0fff;
@@ -1631,6 +2045,10 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
kvm_s390_destroy_adapters(kvm);
kvm_s390_clear_float_irqs(kvm);
kvm_s390_vsie_destroy(kvm);
+ if (kvm->arch.migration_state) {
+ vfree(kvm->arch.migration_state->pgste_bitmap);
+ kfree(kvm->arch.migration_state);
+ }
KVM_EVENT(3, "vm 0x%pK destroyed", kvm);
}
@@ -1975,7 +2393,6 @@ int kvm_s390_vcpu_setup_cmma(struct kvm_vcpu *vcpu)
if (!vcpu->arch.sie_block->cbrlo)
return -ENOMEM;
- vcpu->arch.sie_block->ecb2 |= ECB2_CMMA;
vcpu->arch.sie_block->ecb2 &= ~ECB2_PFMFI;
return 0;
}
@@ -2029,6 +2446,9 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
vcpu->arch.sie_block->eca |= ECA_VX;
vcpu->arch.sie_block->ecd |= ECD_HOSTREGMGMT;
}
+ if (test_kvm_facility(vcpu->kvm, 139))
+ vcpu->arch.sie_block->ecd |= ECD_MEF;
+
vcpu->arch.sie_block->sdnxo = ((unsigned long) &vcpu->run->s.regs.sdnx)
| SDNXC;
vcpu->arch.sie_block->riccbd = (unsigned long) &vcpu->run->s.regs.riccb;
@@ -2067,6 +2487,7 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
if (!vcpu)
goto out;
+ BUILD_BUG_ON(sizeof(struct sie_page) != 4096);
sie_page = (struct sie_page *) get_zeroed_page(GFP_KERNEL);
if (!sie_page)
goto out_free_cpu;
@@ -2106,6 +2527,11 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
return kvm_s390_vcpu_has_irq(vcpu, 0);
}
+bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu)
+{
+ return !(vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE);
+}
+
void kvm_s390_vcpu_block(struct kvm_vcpu *vcpu)
{
atomic_or(PROG_BLOCK_SIE, &vcpu->arch.sie_block->prog20);
@@ -2438,7 +2864,7 @@ static int kvm_s390_handle_requests(struct kvm_vcpu *vcpu)
{
retry:
kvm_s390_vcpu_request_handled(vcpu);
- if (!vcpu->requests)
+ if (!kvm_request_pending(vcpu))
return 0;
/*
* We use MMU_RELOAD just to re-arm the ipte notifier for the
@@ -2487,12 +2913,62 @@ retry:
goto retry;
}
+ if (kvm_check_request(KVM_REQ_START_MIGRATION, vcpu)) {
+ /*
+ * Disable CMMA virtualization; we will emulate the ESSA
+ * instruction manually, in order to provide additional
+ * functionalities needed for live migration.
+ */
+ vcpu->arch.sie_block->ecb2 &= ~ECB2_CMMA;
+ goto retry;
+ }
+
+ if (kvm_check_request(KVM_REQ_STOP_MIGRATION, vcpu)) {
+ /*
+ * Re-enable CMMA virtualization if CMMA is available and
+ * was used.
+ */
+ if ((vcpu->kvm->arch.use_cmma) &&
+ (vcpu->kvm->mm->context.use_cmma))
+ vcpu->arch.sie_block->ecb2 |= ECB2_CMMA;
+ goto retry;
+ }
+
/* nothing to do, just clear the request */
kvm_clear_request(KVM_REQ_UNHALT, vcpu);
return 0;
}
+void kvm_s390_set_tod_clock_ext(struct kvm *kvm,
+ const struct kvm_s390_vm_tod_clock *gtod)
+{
+ struct kvm_vcpu *vcpu;
+ struct kvm_s390_tod_clock_ext htod;
+ int i;
+
+ mutex_lock(&kvm->lock);
+ preempt_disable();
+
+ get_tod_clock_ext((char *)&htod);
+
+ kvm->arch.epoch = gtod->tod - htod.tod;
+ kvm->arch.epdx = gtod->epoch_idx - htod.epoch_idx;
+
+ if (kvm->arch.epoch > gtod->tod)
+ kvm->arch.epdx -= 1;
+
+ kvm_s390_vcpu_block_all(kvm);
+ kvm_for_each_vcpu(i, vcpu, kvm) {
+ vcpu->arch.sie_block->epoch = kvm->arch.epoch;
+ vcpu->arch.sie_block->epdx = kvm->arch.epdx;
+ }
+
+ kvm_s390_vcpu_unblock_all(kvm);
+ preempt_enable();
+ mutex_unlock(&kvm->lock);
+}
+
void kvm_s390_set_tod_clock(struct kvm *kvm, u64 tod)
{
struct kvm_vcpu *vcpu;
@@ -2681,6 +3157,9 @@ static int vcpu_post_run_fault_in_sie(struct kvm_vcpu *vcpu)
static int vcpu_post_run(struct kvm_vcpu *vcpu, int exit_reason)
{
+ struct mcck_volatile_info *mcck_info;
+ struct sie_page *sie_page;
+
VCPU_EVENT(vcpu, 6, "exit sie icptcode %d",
vcpu->arch.sie_block->icptcode);
trace_kvm_s390_sie_exit(vcpu, vcpu->arch.sie_block->icptcode);
@@ -2691,6 +3170,15 @@ static int vcpu_post_run(struct kvm_vcpu *vcpu, int exit_reason)
vcpu->run->s.regs.gprs[14] = vcpu->arch.sie_block->gg14;
vcpu->run->s.regs.gprs[15] = vcpu->arch.sie_block->gg15;
+ if (exit_reason == -EINTR) {
+ VCPU_EVENT(vcpu, 3, "%s", "machine check");
+ sie_page = container_of(vcpu->arch.sie_block,
+ struct sie_page, sie_block);
+ mcck_info = &sie_page->mcck_info;
+ kvm_s390_reinject_machine_check(vcpu, mcck_info);
+ return 0;
+ }
+
if (vcpu->arch.sie_block->icptcode > 0) {
int rc = kvm_handle_sie_intercept(vcpu);
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index 55f5c8457d6d..9f8fdd7b2311 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -272,6 +272,8 @@ int kvm_s390_handle_sigp_pei(struct kvm_vcpu *vcpu);
int handle_sthyi(struct kvm_vcpu *vcpu);
/* implemented in kvm-s390.c */
+void kvm_s390_set_tod_clock_ext(struct kvm *kvm,
+ const struct kvm_s390_vm_tod_clock *gtod);
void kvm_s390_set_tod_clock(struct kvm *kvm, u64 tod);
long kvm_arch_fault_in_page(struct kvm_vcpu *vcpu, gpa_t gpa, int writable);
int kvm_s390_store_status_unloaded(struct kvm_vcpu *vcpu, unsigned long addr);
@@ -397,4 +399,6 @@ static inline int kvm_s390_use_sca_entries(void)
*/
return sclp.has_sigpif;
}
+void kvm_s390_reinject_machine_check(struct kvm_vcpu *vcpu,
+ struct mcck_volatile_info *mcck_info);
#endif
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index c03106c428cf..c954ac49eee4 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -24,6 +24,7 @@
#include <asm/ebcdic.h>
#include <asm/sysinfo.h>
#include <asm/pgtable.h>
+#include <asm/page-states.h>
#include <asm/pgalloc.h>
#include <asm/gmap.h>
#include <asm/io.h>
@@ -328,7 +329,7 @@ static int handle_sske(struct kvm_vcpu *vcpu)
start = kvm_s390_logical_to_effective(vcpu, start);
if (m3 & SSKE_MB) {
/* start already designates an absolute address */
- end = (start + (1UL << 20)) & ~((1UL << 20) - 1);
+ end = (start + _SEGMENT_SIZE) & ~(_SEGMENT_SIZE - 1);
} else {
start = kvm_s390_real_to_abs(vcpu, start);
end = start + PAGE_SIZE;
@@ -361,7 +362,7 @@ static int handle_sske(struct kvm_vcpu *vcpu)
}
}
if (m3 & SSKE_MB) {
- if (psw_bits(vcpu->arch.sie_block->gpsw).eaba == PSW_AMODE_64BIT)
+ if (psw_bits(vcpu->arch.sie_block->gpsw).eaba == PSW_BITS_AMODE_64BIT)
vcpu->run->s.regs.gprs[reg2] &= ~PAGE_MASK;
else
vcpu->run->s.regs.gprs[reg2] &= ~0xfffff000UL;
@@ -374,7 +375,7 @@ static int handle_sske(struct kvm_vcpu *vcpu)
static int handle_ipte_interlock(struct kvm_vcpu *vcpu)
{
vcpu->stat.instruction_ipte_interlock++;
- if (psw_bits(vcpu->arch.sie_block->gpsw).p)
+ if (psw_bits(vcpu->arch.sie_block->gpsw).pstate)
return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
wait_event(vcpu->kvm->arch.ipte_wq, !ipte_lock_held(vcpu));
kvm_s390_retry_instr(vcpu);
@@ -892,18 +893,18 @@ static int handle_pfmf(struct kvm_vcpu *vcpu)
case 0x00000000:
/* only 4k frames specify a real address */
start = kvm_s390_real_to_abs(vcpu, start);
- end = (start + (1UL << 12)) & ~((1UL << 12) - 1);
+ end = (start + PAGE_SIZE) & ~(PAGE_SIZE - 1);
break;
case 0x00001000:
- end = (start + (1UL << 20)) & ~((1UL << 20) - 1);
+ end = (start + _SEGMENT_SIZE) & ~(_SEGMENT_SIZE - 1);
break;
case 0x00002000:
/* only support 2G frame size if EDAT2 is available and we are
not in 24-bit addressing mode */
if (!test_kvm_facility(vcpu->kvm, 78) ||
- psw_bits(vcpu->arch.sie_block->gpsw).eaba == PSW_AMODE_24BIT)
+ psw_bits(vcpu->arch.sie_block->gpsw).eaba == PSW_BITS_AMODE_24BIT)
return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
- end = (start + (1UL << 31)) & ~((1UL << 31) - 1);
+ end = (start + _REGION3_SIZE) & ~(_REGION3_SIZE - 1);
break;
default:
return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
@@ -938,7 +939,7 @@ static int handle_pfmf(struct kvm_vcpu *vcpu)
start += PAGE_SIZE;
}
if (vcpu->run->s.regs.gprs[reg1] & PFMF_FSC) {
- if (psw_bits(vcpu->arch.sie_block->gpsw).eaba == PSW_AMODE_64BIT) {
+ if (psw_bits(vcpu->arch.sie_block->gpsw).eaba == PSW_BITS_AMODE_64BIT) {
vcpu->run->s.regs.gprs[reg2] = end;
} else {
vcpu->run->s.regs.gprs[reg2] &= ~0xffffffffUL;
@@ -949,13 +950,74 @@ static int handle_pfmf(struct kvm_vcpu *vcpu)
return 0;
}
+static inline int do_essa(struct kvm_vcpu *vcpu, const int orc)
+{
+ struct kvm_s390_migration_state *ms = vcpu->kvm->arch.migration_state;
+ int r1, r2, nappended, entries;
+ unsigned long gfn, hva, res, pgstev, ptev;
+ unsigned long *cbrlo;
+
+ /*
+ * We don't need to set SD.FPF.SK to 1 here, because if we have a
+ * machine check here we either handle it or crash
+ */
+
+ kvm_s390_get_regs_rre(vcpu, &r1, &r2);
+ gfn = vcpu->run->s.regs.gprs[r2] >> PAGE_SHIFT;
+ hva = gfn_to_hva(vcpu->kvm, gfn);
+ entries = (vcpu->arch.sie_block->cbrlo & ~PAGE_MASK) >> 3;
+
+ if (kvm_is_error_hva(hva))
+ return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
+
+ nappended = pgste_perform_essa(vcpu->kvm->mm, hva, orc, &ptev, &pgstev);
+ if (nappended < 0) {
+ res = orc ? 0x10 : 0;
+ vcpu->run->s.regs.gprs[r1] = res; /* Exception Indication */
+ return 0;
+ }
+ res = (pgstev & _PGSTE_GPS_USAGE_MASK) >> 22;
+ /*
+ * Set the block-content state part of the result. 0 means resident, so
+ * nothing to do if the page is valid. 2 is for preserved pages
+ * (non-present and non-zero), and 3 for zero pages (non-present and
+ * zero).
+ */
+ if (ptev & _PAGE_INVALID) {
+ res |= 2;
+ if (pgstev & _PGSTE_GPS_ZERO)
+ res |= 1;
+ }
+ if (pgstev & _PGSTE_GPS_NODAT)
+ res |= 0x20;
+ vcpu->run->s.regs.gprs[r1] = res;
+ /*
+ * It is possible that all the normal 511 slots were full, in which case
+ * we will now write in the 512th slot, which is reserved for host use.
+ * In both cases we let the normal essa handling code process all the
+ * slots, including the reserved one, if needed.
+ */
+ if (nappended > 0) {
+ cbrlo = phys_to_virt(vcpu->arch.sie_block->cbrlo & PAGE_MASK);
+ cbrlo[entries] = gfn << PAGE_SHIFT;
+ }
+
+ if (orc) {
+ /* increment only if we are really flipping the bit to 1 */
+ if (!test_and_set_bit(gfn, ms->pgste_bitmap))
+ atomic64_inc(&ms->dirty_pages);
+ }
+
+ return nappended;
+}
+
static int handle_essa(struct kvm_vcpu *vcpu)
{
/* entries expected to be 1FF */
int entries = (vcpu->arch.sie_block->cbrlo & ~PAGE_MASK) >> 3;
unsigned long *cbrlo;
struct gmap *gmap;
- int i;
+ int i, orc;
VCPU_EVENT(vcpu, 4, "ESSA: release %d pages", entries);
gmap = vcpu->arch.gmap;
@@ -965,12 +1027,47 @@ static int handle_essa(struct kvm_vcpu *vcpu)
if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
-
- if (((vcpu->arch.sie_block->ipb & 0xf0000000) >> 28) > 6)
+ /* Check for invalid operation request code */
+ orc = (vcpu->arch.sie_block->ipb & 0xf0000000) >> 28;
+ /* ORCs 0-6 are always valid */
+ if (orc > (test_kvm_facility(vcpu->kvm, 147) ? ESSA_SET_STABLE_NODAT
+ : ESSA_SET_STABLE_IF_RESIDENT))
return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
- /* Retry the ESSA instruction */
- kvm_s390_retry_instr(vcpu);
+ if (likely(!vcpu->kvm->arch.migration_state)) {
+ /*
+ * CMMA is enabled in the KVM settings, but is disabled in
+ * the SIE block and in the mm_context, and we are not doing
+ * a migration. Enable CMMA in the mm_context.
+ * Since we need to take a write lock to write to the context
+ * to avoid races with storage keys handling, we check if the
+ * value really needs to be written to; if the value is
+ * already correct, we do nothing and avoid the lock.
+ */
+ if (vcpu->kvm->mm->context.use_cmma == 0) {
+ down_write(&vcpu->kvm->mm->mmap_sem);
+ vcpu->kvm->mm->context.use_cmma = 1;
+ up_write(&vcpu->kvm->mm->mmap_sem);
+ }
+ /*
+ * If we are here, we are supposed to have CMMA enabled in
+ * the SIE block. Enabling CMMA works on a per-CPU basis,
+ * while the context use_cmma flag is per process.
+ * It's possible that the context flag is enabled and the
+ * SIE flag is not, so we set the flag always; if it was
+ * already set, nothing changes, otherwise we enable it
+ * on this CPU too.
+ */
+ vcpu->arch.sie_block->ecb2 |= ECB2_CMMA;
+ /* Retry the ESSA instruction */
+ kvm_s390_retry_instr(vcpu);
+ } else {
+ /* Account for the possible extra cbrl entry */
+ i = do_essa(vcpu, orc);
+ if (i < 0)
+ return i;
+ entries += i;
+ }
vcpu->arch.sie_block->cbrlo &= PAGE_MASK; /* reset nceo */
cbrlo = phys_to_virt(vcpu->arch.sie_block->cbrlo);
down_read(&gmap->mm->mmap_sem);
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 1a252f537081..9d592ef4104b 100644
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -155,29 +155,26 @@ static int __sigp_stop_and_store_status(struct kvm_vcpu *vcpu,
return rc;
}
-static int __sigp_set_arch(struct kvm_vcpu *vcpu, u32 parameter)
+static int __sigp_set_arch(struct kvm_vcpu *vcpu, u32 parameter,
+ u64 *status_reg)
{
- int rc;
unsigned int i;
struct kvm_vcpu *v;
+ bool all_stopped = true;
- switch (parameter & 0xff) {
- case 0:
- rc = SIGP_CC_NOT_OPERATIONAL;
- break;
- case 1:
- case 2:
- kvm_for_each_vcpu(i, v, vcpu->kvm) {
- v->arch.pfault_token = KVM_S390_PFAULT_TOKEN_INVALID;
- kvm_clear_async_pf_completion_queue(v);
- }
-
- rc = SIGP_CC_ORDER_CODE_ACCEPTED;
- break;
- default:
- rc = -EOPNOTSUPP;
+ kvm_for_each_vcpu(i, v, vcpu->kvm) {
+ if (v == vcpu)
+ continue;
+ if (!is_vcpu_stopped(v))
+ all_stopped = false;
}
- return rc;
+
+ *status_reg &= 0xffffffff00000000UL;
+
+ /* Reject set arch order, with czam we're always in z/Arch mode. */
+ *status_reg |= (all_stopped ? SIGP_STATUS_INVALID_PARAMETER :
+ SIGP_STATUS_INCORRECT_STATE);
+ return SIGP_CC_STATUS_STORED;
}
static int __sigp_set_prefix(struct kvm_vcpu *vcpu, struct kvm_vcpu *dst_vcpu,
@@ -446,7 +443,8 @@ int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu)
switch (order_code) {
case SIGP_SET_ARCHITECTURE:
vcpu->stat.instruction_sigp_arch++;
- rc = __sigp_set_arch(vcpu, parameter);
+ rc = __sigp_set_arch(vcpu, parameter,
+ &vcpu->run->s.regs.gprs[r1]);
break;
default:
rc = handle_sigp_dst(vcpu, order_code, cpu_addr,
diff --git a/arch/s390/kvm/sthyi.c b/arch/s390/kvm/sthyi.c
index 926b5244263e..395926b8c1ed 100644
--- a/arch/s390/kvm/sthyi.c
+++ b/arch/s390/kvm/sthyi.c
@@ -394,7 +394,7 @@ static int sthyi(u64 vaddr)
"srl %[cc],28\n"
: [cc] "=d" (cc)
: [code] "d" (code), [addr] "a" (addr)
- : "memory", "cc");
+ : "3", "memory", "cc");
return cc;
}
@@ -425,7 +425,7 @@ int handle_sthyi(struct kvm_vcpu *vcpu)
VCPU_EVENT(vcpu, 3, "STHYI: fc: %llu addr: 0x%016llx", code, addr);
trace_kvm_s390_handle_sthyi(vcpu, code, addr);
- if (reg1 == reg2 || reg1 & 1 || reg2 & 1 || addr & ~PAGE_MASK)
+ if (reg1 == reg2 || reg1 & 1 || reg2 & 1)
return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
if (code & 0xffff) {
@@ -433,13 +433,8 @@ int handle_sthyi(struct kvm_vcpu *vcpu)
goto out;
}
- /*
- * If the page has not yet been faulted in, we want to do that
- * now and not after all the expensive calculations.
- */
- r = write_guest(vcpu, addr, reg2, &cc, 1);
- if (r)
- return kvm_s390_inject_prog_cond(vcpu, r);
+ if (addr & ~PAGE_MASK)
+ return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
sctns = (void *)get_zeroed_page(GFP_KERNEL);
if (!sctns)
diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c
index 4719ecb9ab42..b18b5652e5c5 100644
--- a/arch/s390/kvm/vsie.c
+++ b/arch/s390/kvm/vsie.c
@@ -26,16 +26,21 @@
struct vsie_page {
struct kvm_s390_sie_block scb_s; /* 0x0000 */
+ /*
+ * the backup info for machine check. ensure it's at
+ * the same offset as that in struct sie_page!
+ */
+ struct mcck_volatile_info mcck_info; /* 0x0200 */
/* the pinned originial scb */
- struct kvm_s390_sie_block *scb_o; /* 0x0200 */
+ struct kvm_s390_sie_block *scb_o; /* 0x0218 */
/* the shadow gmap in use by the vsie_page */
- struct gmap *gmap; /* 0x0208 */
+ struct gmap *gmap; /* 0x0220 */
/* address of the last reported fault to guest2 */
- unsigned long fault_addr; /* 0x0210 */
- __u8 reserved[0x0700 - 0x0218]; /* 0x0218 */
+ unsigned long fault_addr; /* 0x0228 */
+ __u8 reserved[0x0700 - 0x0230]; /* 0x0230 */
struct kvm_s390_crypto_cb crycb; /* 0x0700 */
__u8 fac[S390_ARCH_FAC_LIST_SIZE_BYTE]; /* 0x0800 */
-} __packed;
+};
/* trigger a validity icpt for the given scb */
static int set_validity_icpt(struct kvm_s390_sie_block *scb,
@@ -344,6 +349,9 @@ static int shadow_scb(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
scb_s->eca |= scb_o->eca & ECA_IB;
if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_CEI))
scb_s->eca |= scb_o->eca & ECA_CEI;
+ /* Epoch Extension */
+ if (test_kvm_facility(vcpu->kvm, 139))
+ scb_s->ecd |= scb_o->ecd & ECD_MEF;
prepare_ibc(vcpu, vsie_page);
rc = shadow_crycb(vcpu, vsie_page);
@@ -822,6 +830,12 @@ static int do_vsie_run(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
local_irq_enable();
vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
+ if (rc == -EINTR) {
+ VCPU_EVENT(vcpu, 3, "%s", "machine check");
+ kvm_s390_reinject_machine_check(vcpu, &vsie_page->mcck_info);
+ return 0;
+ }
+
if (rc > 0)
rc = 0; /* we could still have an icpt */
else if (rc == -EFAULT)
@@ -904,6 +918,13 @@ static void register_shadow_scb(struct kvm_vcpu *vcpu,
*/
preempt_disable();
scb_s->epoch += vcpu->kvm->arch.epoch;
+
+ if (scb_s->ecd & ECD_MEF) {
+ scb_s->epdx += vcpu->kvm->arch.epdx;
+ if (scb_s->epoch < vcpu->kvm->arch.epoch)
+ scb_s->epdx += 1;
+ }
+
preempt_enable();
}
@@ -1054,7 +1075,7 @@ int kvm_s390_handle_vsie(struct kvm_vcpu *vcpu)
if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
- BUILD_BUG_ON(sizeof(struct vsie_page) != 4096);
+ BUILD_BUG_ON(sizeof(struct vsie_page) != PAGE_SIZE);
scb_addr = kvm_s390_get_base_disp_s(vcpu, NULL);
/* 512 byte alignment */
diff --git a/arch/s390/lib/delay.c b/arch/s390/lib/delay.c
index 92e90e40b6fb..7f17555ad4d5 100644
--- a/arch/s390/lib/delay.c
+++ b/arch/s390/lib/delay.c
@@ -57,7 +57,7 @@ static void __udelay_enabled(unsigned long long usecs)
end = get_tod_clock_fast() + (usecs << 12);
do {
clock_saved = 0;
- if (end < S390_lowcore.clock_comparator) {
+ if (tod_after(S390_lowcore.clock_comparator, end)) {
clock_saved = local_tick_disable();
set_clock_comparator(end);
}
diff --git a/arch/s390/lib/spinlock.c b/arch/s390/lib/spinlock.c
index ffb15bd4c593..b12663d653d8 100644
--- a/arch/s390/lib/spinlock.c
+++ b/arch/s390/lib/spinlock.c
@@ -32,42 +32,63 @@ static int __init spin_retry_setup(char *str)
}
__setup("spin_retry=", spin_retry_setup);
+static inline int arch_load_niai4(int *lock)
+{
+ int owner;
+
+ asm volatile(
+#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES
+ " .long 0xb2fa0040\n" /* NIAI 4 */
+#endif
+ " l %0,%1\n"
+ : "=d" (owner) : "Q" (*lock) : "memory");
+ return owner;
+}
+
+static inline int arch_cmpxchg_niai8(int *lock, int old, int new)
+{
+ int expected = old;
+
+ asm volatile(
+#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES
+ " .long 0xb2fa0080\n" /* NIAI 8 */
+#endif
+ " cs %0,%3,%1\n"
+ : "=d" (old), "=Q" (*lock)
+ : "0" (old), "d" (new), "Q" (*lock)
+ : "cc", "memory");
+ return expected == old;
+}
+
void arch_spin_lock_wait(arch_spinlock_t *lp)
{
int cpu = SPINLOCK_LOCKVAL;
- int owner, count, first_diag;
+ int owner, count;
+
+ /* Pass the virtual CPU to the lock holder if it is not running */
+ owner = arch_load_niai4(&lp->lock);
+ if (owner && arch_vcpu_is_preempted(~owner))
+ smp_yield_cpu(~owner);
- first_diag = 1;
+ count = spin_retry;
while (1) {
- owner = ACCESS_ONCE(lp->lock);
+ owner = arch_load_niai4(&lp->lock);
/* Try to get the lock if it is free. */
if (!owner) {
- if (__atomic_cmpxchg_bool(&lp->lock, 0, cpu))
+ if (arch_cmpxchg_niai8(&lp->lock, 0, cpu))
return;
continue;
}
- /* First iteration: check if the lock owner is running. */
- if (first_diag && arch_vcpu_is_preempted(~owner)) {
- smp_yield_cpu(~owner);
- first_diag = 0;
+ if (count-- >= 0)
continue;
- }
- /* Loop for a while on the lock value. */
count = spin_retry;
- do {
- owner = ACCESS_ONCE(lp->lock);
- } while (owner && count-- > 0);
- if (!owner)
- continue;
/*
* For multiple layers of hypervisors, e.g. z/VM + LPAR
* yield the CPU unconditionally. For LPAR rely on the
* sense running status.
*/
- if (!MACHINE_IS_LPAR || arch_vcpu_is_preempted(~owner)) {
+ if (!MACHINE_IS_LPAR || arch_vcpu_is_preempted(~owner))
smp_yield_cpu(~owner);
- first_diag = 0;
- }
}
}
EXPORT_SYMBOL(arch_spin_lock_wait);
@@ -75,42 +96,36 @@ EXPORT_SYMBOL(arch_spin_lock_wait);
void arch_spin_lock_wait_flags(arch_spinlock_t *lp, unsigned long flags)
{
int cpu = SPINLOCK_LOCKVAL;
- int owner, count, first_diag;
+ int owner, count;
local_irq_restore(flags);
- first_diag = 1;
+
+ /* Pass the virtual CPU to the lock holder if it is not running */
+ owner = arch_load_niai4(&lp->lock);
+ if (owner && arch_vcpu_is_preempted(~owner))
+ smp_yield_cpu(~owner);
+
+ count = spin_retry;
while (1) {
- owner = ACCESS_ONCE(lp->lock);
+ owner = arch_load_niai4(&lp->lock);
/* Try to get the lock if it is free. */
if (!owner) {
local_irq_disable();
- if (__atomic_cmpxchg_bool(&lp->lock, 0, cpu))
+ if (arch_cmpxchg_niai8(&lp->lock, 0, cpu))
return;
local_irq_restore(flags);
continue;
}
- /* Check if the lock owner is running. */
- if (first_diag && arch_vcpu_is_preempted(~owner)) {
- smp_yield_cpu(~owner);
- first_diag = 0;
+ if (count-- >= 0)
continue;
- }
- /* Loop for a while on the lock value. */
count = spin_retry;
- do {
- owner = ACCESS_ONCE(lp->lock);
- } while (owner && count-- > 0);
- if (!owner)
- continue;
/*
* For multiple layers of hypervisors, e.g. z/VM + LPAR
* yield the CPU unconditionally. For LPAR rely on the
* sense running status.
*/
- if (!MACHINE_IS_LPAR || arch_vcpu_is_preempted(~owner)) {
+ if (!MACHINE_IS_LPAR || arch_vcpu_is_preempted(~owner))
smp_yield_cpu(~owner);
- first_diag = 0;
- }
}
}
EXPORT_SYMBOL(arch_spin_lock_wait_flags);
diff --git a/arch/s390/lib/uaccess.c b/arch/s390/lib/uaccess.c
index b3bd3f23b8e8..4ea9106417ee 100644
--- a/arch/s390/lib/uaccess.c
+++ b/arch/s390/lib/uaccess.c
@@ -15,8 +15,30 @@
#include <asm/mmu_context.h>
#include <asm/facility.h>
+#ifndef CONFIG_HAVE_MARCH_Z10_FEATURES
static DEFINE_STATIC_KEY_FALSE(have_mvcos);
+static int __init uaccess_init(void)
+{
+ if (test_facility(27))
+ static_branch_enable(&have_mvcos);
+ return 0;
+}
+early_initcall(uaccess_init);
+
+static inline int copy_with_mvcos(void)
+{
+ if (static_branch_likely(&have_mvcos))
+ return 1;
+ return 0;
+}
+#else
+static inline int copy_with_mvcos(void)
+{
+ return 1;
+}
+#endif
+
static inline unsigned long copy_from_user_mvcos(void *x, const void __user *ptr,
unsigned long size)
{
@@ -84,7 +106,7 @@ static inline unsigned long copy_from_user_mvcp(void *x, const void __user *ptr,
unsigned long raw_copy_from_user(void *to, const void __user *from, unsigned long n)
{
- if (static_branch_likely(&have_mvcos))
+ if (copy_with_mvcos())
return copy_from_user_mvcos(to, from, n);
return copy_from_user_mvcp(to, from, n);
}
@@ -157,7 +179,7 @@ static inline unsigned long copy_to_user_mvcs(void __user *ptr, const void *x,
unsigned long raw_copy_to_user(void __user *to, const void *from, unsigned long n)
{
- if (static_branch_likely(&have_mvcos))
+ if (copy_with_mvcos())
return copy_to_user_mvcos(to, from, n);
return copy_to_user_mvcs(to, from, n);
}
@@ -220,7 +242,7 @@ static inline unsigned long copy_in_user_mvc(void __user *to, const void __user
unsigned long raw_copy_in_user(void __user *to, const void __user *from, unsigned long n)
{
- if (static_branch_likely(&have_mvcos))
+ if (copy_with_mvcos())
return copy_in_user_mvcos(to, from, n);
return copy_in_user_mvc(to, from, n);
}
@@ -292,7 +314,7 @@ static inline unsigned long clear_user_xc(void __user *to, unsigned long size)
unsigned long __clear_user(void __user *to, unsigned long size)
{
- if (static_branch_likely(&have_mvcos))
+ if (copy_with_mvcos())
return clear_user_mvcos(to, size);
return clear_user_xc(to, size);
}
@@ -349,11 +371,3 @@ long __strncpy_from_user(char *dst, const char __user *src, long size)
return done;
}
EXPORT_SYMBOL(__strncpy_from_user);
-
-static int __init uaccess_init(void)
-{
- if (test_facility(27))
- static_branch_enable(&have_mvcos);
- return 0;
-}
-early_initcall(uaccess_init);
diff --git a/arch/s390/mm/dump_pagetables.c b/arch/s390/mm/dump_pagetables.c
index 1b553d847140..049c3c455b32 100644
--- a/arch/s390/mm/dump_pagetables.c
+++ b/arch/s390/mm/dump_pagetables.c
@@ -149,7 +149,7 @@ static void walk_pmd_level(struct seq_file *m, struct pg_state *st,
}
static void walk_pud_level(struct seq_file *m, struct pg_state *st,
- pgd_t *pgd, unsigned long addr)
+ p4d_t *p4d, unsigned long addr)
{
unsigned int prot;
pud_t *pud;
@@ -157,7 +157,7 @@ static void walk_pud_level(struct seq_file *m, struct pg_state *st,
for (i = 0; i < PTRS_PER_PUD && addr < max_addr; i++) {
st->current_address = addr;
- pud = pud_offset(pgd, addr);
+ pud = pud_offset(p4d, addr);
if (!pud_none(*pud))
if (pud_large(*pud)) {
prot = pud_val(*pud) &
@@ -172,6 +172,23 @@ static void walk_pud_level(struct seq_file *m, struct pg_state *st,
}
}
+static void walk_p4d_level(struct seq_file *m, struct pg_state *st,
+ pgd_t *pgd, unsigned long addr)
+{
+ p4d_t *p4d;
+ int i;
+
+ for (i = 0; i < PTRS_PER_P4D && addr < max_addr; i++) {
+ st->current_address = addr;
+ p4d = p4d_offset(pgd, addr);
+ if (!p4d_none(*p4d))
+ walk_pud_level(m, st, p4d, addr);
+ else
+ note_page(m, st, _PAGE_INVALID, 2);
+ addr += P4D_SIZE;
+ }
+}
+
static void walk_pgd_level(struct seq_file *m)
{
unsigned long addr = 0;
@@ -184,7 +201,7 @@ static void walk_pgd_level(struct seq_file *m)
st.current_address = addr;
pgd = pgd_offset_k(addr);
if (!pgd_none(*pgd))
- walk_pud_level(m, &st, pgd, addr);
+ walk_p4d_level(m, &st, pgd, addr);
else
note_page(m, &st, _PAGE_INVALID, 1);
addr += PGDIR_SIZE;
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 5845d3028ffc..bdabb013537b 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -130,12 +130,12 @@ static int bad_address(void *p)
static void dump_pagetable(unsigned long asce, unsigned long address)
{
- unsigned long *table = __va(asce & PAGE_MASK);
+ unsigned long *table = __va(asce & _ASCE_ORIGIN);
pr_alert("AS:%016lx ", asce);
switch (asce & _ASCE_TYPE_MASK) {
case _ASCE_TYPE_REGION1:
- table = table + ((address >> 53) & 0x7ff);
+ table += (address & _REGION1_INDEX) >> _REGION1_SHIFT;
if (bad_address(table))
goto bad;
pr_cont("R1:%016lx ", *table);
@@ -144,7 +144,7 @@ static void dump_pagetable(unsigned long asce, unsigned long address)
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
/* fallthrough */
case _ASCE_TYPE_REGION2:
- table = table + ((address >> 42) & 0x7ff);
+ table += (address & _REGION2_INDEX) >> _REGION2_SHIFT;
if (bad_address(table))
goto bad;
pr_cont("R2:%016lx ", *table);
@@ -153,7 +153,7 @@ static void dump_pagetable(unsigned long asce, unsigned long address)
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
/* fallthrough */
case _ASCE_TYPE_REGION3:
- table = table + ((address >> 31) & 0x7ff);
+ table += (address & _REGION3_INDEX) >> _REGION3_SHIFT;
if (bad_address(table))
goto bad;
pr_cont("R3:%016lx ", *table);
@@ -162,7 +162,7 @@ static void dump_pagetable(unsigned long asce, unsigned long address)
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
/* fallthrough */
case _ASCE_TYPE_SEGMENT:
- table = table + ((address >> 20) & 0x7ff);
+ table += (address & _SEGMENT_INDEX) >> _SEGMENT_SHIFT;
if (bad_address(table))
goto bad;
pr_cont("S:%016lx ", *table);
@@ -170,7 +170,7 @@ static void dump_pagetable(unsigned long asce, unsigned long address)
goto out;
table = (unsigned long *)(*table & _SEGMENT_ENTRY_ORIGIN);
}
- table = table + ((address >> 12) & 0xff);
+ table += (address & _PAGE_INDEX) >> _PAGE_SHIFT;
if (bad_address(table))
goto bad;
pr_cont("P:%016lx ", *table);
diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c
index 7f6db1e6c048..2f66290c9b92 100644
--- a/arch/s390/mm/gmap.c
+++ b/arch/s390/mm/gmap.c
@@ -36,16 +36,16 @@ static struct gmap *gmap_alloc(unsigned long limit)
unsigned long *table;
unsigned long etype, atype;
- if (limit < (1UL << 31)) {
- limit = (1UL << 31) - 1;
+ if (limit < _REGION3_SIZE) {
+ limit = _REGION3_SIZE - 1;
atype = _ASCE_TYPE_SEGMENT;
etype = _SEGMENT_ENTRY_EMPTY;
- } else if (limit < (1UL << 42)) {
- limit = (1UL << 42) - 1;
+ } else if (limit < _REGION2_SIZE) {
+ limit = _REGION2_SIZE - 1;
atype = _ASCE_TYPE_REGION3;
etype = _REGION3_ENTRY_EMPTY;
- } else if (limit < (1UL << 53)) {
- limit = (1UL << 53) - 1;
+ } else if (limit < _REGION1_SIZE) {
+ limit = _REGION1_SIZE - 1;
atype = _ASCE_TYPE_REGION2;
etype = _REGION2_ENTRY_EMPTY;
} else {
@@ -65,7 +65,7 @@ static struct gmap *gmap_alloc(unsigned long limit)
spin_lock_init(&gmap->guest_table_lock);
spin_lock_init(&gmap->shadow_lock);
atomic_set(&gmap->ref_count, 1);
- page = alloc_pages(GFP_KERNEL, 2);
+ page = alloc_pages(GFP_KERNEL, CRST_ALLOC_ORDER);
if (!page)
goto out_free;
page->index = 0;
@@ -100,14 +100,14 @@ struct gmap *gmap_create(struct mm_struct *mm, unsigned long limit)
if (!gmap)
return NULL;
gmap->mm = mm;
- spin_lock(&mm->context.gmap_lock);
+ spin_lock(&mm->context.lock);
list_add_rcu(&gmap->list, &mm->context.gmap_list);
if (list_is_singular(&mm->context.gmap_list))
gmap_asce = gmap->asce;
else
gmap_asce = -1UL;
WRITE_ONCE(mm->context.gmap_asce, gmap_asce);
- spin_unlock(&mm->context.gmap_lock);
+ spin_unlock(&mm->context.lock);
return gmap;
}
EXPORT_SYMBOL_GPL(gmap_create);
@@ -125,7 +125,7 @@ static void gmap_radix_tree_free(struct radix_tree_root *root)
struct radix_tree_iter iter;
unsigned long indices[16];
unsigned long index;
- void **slot;
+ void __rcu **slot;
int i, nr;
/* A radix tree is freed by deleting all of its entries */
@@ -150,7 +150,7 @@ static void gmap_rmap_radix_tree_free(struct radix_tree_root *root)
struct radix_tree_iter iter;
unsigned long indices[16];
unsigned long index;
- void **slot;
+ void __rcu **slot;
int i, nr;
/* A radix tree is freed by deleting all of its entries */
@@ -186,7 +186,7 @@ static void gmap_free(struct gmap *gmap)
gmap_flush_tlb(gmap);
/* Free all segment & region tables. */
list_for_each_entry_safe(page, next, &gmap->crst_list, lru)
- __free_pages(page, 2);
+ __free_pages(page, CRST_ALLOC_ORDER);
gmap_radix_tree_free(&gmap->guest_to_host);
gmap_radix_tree_free(&gmap->host_to_guest);
@@ -248,7 +248,7 @@ void gmap_remove(struct gmap *gmap)
spin_unlock(&gmap->shadow_lock);
}
/* Remove gmap from the pre-mm list */
- spin_lock(&gmap->mm->context.gmap_lock);
+ spin_lock(&gmap->mm->context.lock);
list_del_rcu(&gmap->list);
if (list_empty(&gmap->mm->context.gmap_list))
gmap_asce = 0;
@@ -258,7 +258,7 @@ void gmap_remove(struct gmap *gmap)
else
gmap_asce = -1UL;
WRITE_ONCE(gmap->mm->context.gmap_asce, gmap_asce);
- spin_unlock(&gmap->mm->context.gmap_lock);
+ spin_unlock(&gmap->mm->context.lock);
synchronize_rcu();
/* Put reference */
gmap_put(gmap);
@@ -306,7 +306,7 @@ static int gmap_alloc_table(struct gmap *gmap, unsigned long *table,
unsigned long *new;
/* since we dont free the gmap table until gmap_free we can unlock */
- page = alloc_pages(GFP_KERNEL, 2);
+ page = alloc_pages(GFP_KERNEL, CRST_ALLOC_ORDER);
if (!page)
return -ENOMEM;
new = (unsigned long *) page_to_phys(page);
@@ -321,7 +321,7 @@ static int gmap_alloc_table(struct gmap *gmap, unsigned long *table,
}
spin_unlock(&gmap->guest_table_lock);
if (page)
- __free_pages(page, 2);
+ __free_pages(page, CRST_ALLOC_ORDER);
return 0;
}
@@ -537,6 +537,7 @@ int __gmap_link(struct gmap *gmap, unsigned long gaddr, unsigned long vmaddr)
unsigned long *table;
spinlock_t *ptl;
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
int rc;
@@ -545,35 +546,37 @@ int __gmap_link(struct gmap *gmap, unsigned long gaddr, unsigned long vmaddr)
/* Create higher level tables in the gmap page table */
table = gmap->table;
if ((gmap->asce & _ASCE_TYPE_MASK) >= _ASCE_TYPE_REGION1) {
- table += (gaddr >> 53) & 0x7ff;
+ table += (gaddr & _REGION1_INDEX) >> _REGION1_SHIFT;
if ((*table & _REGION_ENTRY_INVALID) &&
gmap_alloc_table(gmap, table, _REGION2_ENTRY_EMPTY,
- gaddr & 0xffe0000000000000UL))
+ gaddr & _REGION1_MASK))
return -ENOMEM;
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
}
if ((gmap->asce & _ASCE_TYPE_MASK) >= _ASCE_TYPE_REGION2) {
- table += (gaddr >> 42) & 0x7ff;
+ table += (gaddr & _REGION2_INDEX) >> _REGION2_SHIFT;
if ((*table & _REGION_ENTRY_INVALID) &&
gmap_alloc_table(gmap, table, _REGION3_ENTRY_EMPTY,
- gaddr & 0xfffffc0000000000UL))
+ gaddr & _REGION2_MASK))
return -ENOMEM;
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
}
if ((gmap->asce & _ASCE_TYPE_MASK) >= _ASCE_TYPE_REGION3) {
- table += (gaddr >> 31) & 0x7ff;
+ table += (gaddr & _REGION3_INDEX) >> _REGION3_SHIFT;
if ((*table & _REGION_ENTRY_INVALID) &&
gmap_alloc_table(gmap, table, _SEGMENT_ENTRY_EMPTY,
- gaddr & 0xffffffff80000000UL))
+ gaddr & _REGION3_MASK))
return -ENOMEM;
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
}
- table += (gaddr >> 20) & 0x7ff;
+ table += (gaddr & _SEGMENT_INDEX) >> _SEGMENT_SHIFT;
/* Walk the parent mm page table */
mm = gmap->mm;
pgd = pgd_offset(mm, vmaddr);
VM_BUG_ON(pgd_none(*pgd));
- pud = pud_offset(pgd, vmaddr);
+ p4d = p4d_offset(pgd, vmaddr);
+ VM_BUG_ON(p4d_none(*p4d));
+ pud = pud_offset(p4d, vmaddr);
VM_BUG_ON(pud_none(*pud));
/* large puds cannot yet be handled */
if (pud_large(*pud))
@@ -768,7 +771,7 @@ static inline unsigned long *gmap_table_walk(struct gmap *gmap,
table = gmap->table;
switch (gmap->asce & _ASCE_TYPE_MASK) {
case _ASCE_TYPE_REGION1:
- table += (gaddr >> 53) & 0x7ff;
+ table += (gaddr & _REGION1_INDEX) >> _REGION1_SHIFT;
if (level == 4)
break;
if (*table & _REGION_ENTRY_INVALID)
@@ -776,7 +779,7 @@ static inline unsigned long *gmap_table_walk(struct gmap *gmap,
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
/* Fallthrough */
case _ASCE_TYPE_REGION2:
- table += (gaddr >> 42) & 0x7ff;
+ table += (gaddr & _REGION2_INDEX) >> _REGION2_SHIFT;
if (level == 3)
break;
if (*table & _REGION_ENTRY_INVALID)
@@ -784,7 +787,7 @@ static inline unsigned long *gmap_table_walk(struct gmap *gmap,
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
/* Fallthrough */
case _ASCE_TYPE_REGION3:
- table += (gaddr >> 31) & 0x7ff;
+ table += (gaddr & _REGION3_INDEX) >> _REGION3_SHIFT;
if (level == 2)
break;
if (*table & _REGION_ENTRY_INVALID)
@@ -792,13 +795,13 @@ static inline unsigned long *gmap_table_walk(struct gmap *gmap,
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
/* Fallthrough */
case _ASCE_TYPE_SEGMENT:
- table += (gaddr >> 20) & 0x7ff;
+ table += (gaddr & _SEGMENT_INDEX) >> _SEGMENT_SHIFT;
if (level == 1)
break;
if (*table & _REGION_ENTRY_INVALID)
return NULL;
table = (unsigned long *)(*table & _SEGMENT_ENTRY_ORIGIN);
- table += (gaddr >> 12) & 0xff;
+ table += (gaddr & _PAGE_INDEX) >> _PAGE_SHIFT;
}
return table;
}
@@ -1008,7 +1011,7 @@ EXPORT_SYMBOL_GPL(gmap_read_table);
static inline void gmap_insert_rmap(struct gmap *sg, unsigned long vmaddr,
struct gmap_rmap *rmap)
{
- void **slot;
+ void __rcu **slot;
BUG_ON(!gmap_is_shadow(sg));
slot = radix_tree_lookup_slot(&sg->host_to_rmap, vmaddr >> PAGE_SHIFT);
@@ -1123,7 +1126,7 @@ static void gmap_unshadow_page(struct gmap *sg, unsigned long raddr)
table = gmap_table_walk(sg, raddr, 0); /* get page table pointer */
if (!table || *table & _PAGE_INVALID)
return;
- gmap_call_notifier(sg, raddr, raddr + (1UL << 12) - 1);
+ gmap_call_notifier(sg, raddr, raddr + _PAGE_SIZE - 1);
ptep_unshadow_pte(sg->mm, raddr, (pte_t *) table);
}
@@ -1141,7 +1144,7 @@ static void __gmap_unshadow_pgt(struct gmap *sg, unsigned long raddr,
int i;
BUG_ON(!gmap_is_shadow(sg));
- for (i = 0; i < 256; i++, raddr += 1UL << 12)
+ for (i = 0; i < _PAGE_ENTRIES; i++, raddr += _PAGE_SIZE)
pgt[i] = _PAGE_INVALID;
}
@@ -1161,8 +1164,8 @@ static void gmap_unshadow_pgt(struct gmap *sg, unsigned long raddr)
ste = gmap_table_walk(sg, raddr, 1); /* get segment pointer */
if (!ste || !(*ste & _SEGMENT_ENTRY_ORIGIN))
return;
- gmap_call_notifier(sg, raddr, raddr + (1UL << 20) - 1);
- sto = (unsigned long) (ste - ((raddr >> 20) & 0x7ff));
+ gmap_call_notifier(sg, raddr, raddr + _SEGMENT_SIZE - 1);
+ sto = (unsigned long) (ste - ((raddr & _SEGMENT_INDEX) >> _SEGMENT_SHIFT));
gmap_idte_one(sto | _ASCE_TYPE_SEGMENT, raddr);
pgt = (unsigned long *)(*ste & _SEGMENT_ENTRY_ORIGIN);
*ste = _SEGMENT_ENTRY_EMPTY;
@@ -1190,7 +1193,7 @@ static void __gmap_unshadow_sgt(struct gmap *sg, unsigned long raddr,
BUG_ON(!gmap_is_shadow(sg));
asce = (unsigned long) sgt | _ASCE_TYPE_SEGMENT;
- for (i = 0; i < 2048; i++, raddr += 1UL << 20) {
+ for (i = 0; i < _CRST_ENTRIES; i++, raddr += _SEGMENT_SIZE) {
if (!(sgt[i] & _SEGMENT_ENTRY_ORIGIN))
continue;
pgt = (unsigned long *)(sgt[i] & _REGION_ENTRY_ORIGIN);
@@ -1219,8 +1222,8 @@ static void gmap_unshadow_sgt(struct gmap *sg, unsigned long raddr)
r3e = gmap_table_walk(sg, raddr, 2); /* get region-3 pointer */
if (!r3e || !(*r3e & _REGION_ENTRY_ORIGIN))
return;
- gmap_call_notifier(sg, raddr, raddr + (1UL << 31) - 1);
- r3o = (unsigned long) (r3e - ((raddr >> 31) & 0x7ff));
+ gmap_call_notifier(sg, raddr, raddr + _REGION3_SIZE - 1);
+ r3o = (unsigned long) (r3e - ((raddr & _REGION3_INDEX) >> _REGION3_SHIFT));
gmap_idte_one(r3o | _ASCE_TYPE_REGION3, raddr);
sgt = (unsigned long *)(*r3e & _REGION_ENTRY_ORIGIN);
*r3e = _REGION3_ENTRY_EMPTY;
@@ -1228,7 +1231,7 @@ static void gmap_unshadow_sgt(struct gmap *sg, unsigned long raddr)
/* Free segment table */
page = pfn_to_page(__pa(sgt) >> PAGE_SHIFT);
list_del(&page->lru);
- __free_pages(page, 2);
+ __free_pages(page, CRST_ALLOC_ORDER);
}
/**
@@ -1248,7 +1251,7 @@ static void __gmap_unshadow_r3t(struct gmap *sg, unsigned long raddr,
BUG_ON(!gmap_is_shadow(sg));
asce = (unsigned long) r3t | _ASCE_TYPE_REGION3;
- for (i = 0; i < 2048; i++, raddr += 1UL << 31) {
+ for (i = 0; i < _CRST_ENTRIES; i++, raddr += _REGION3_SIZE) {
if (!(r3t[i] & _REGION_ENTRY_ORIGIN))
continue;
sgt = (unsigned long *)(r3t[i] & _REGION_ENTRY_ORIGIN);
@@ -1257,7 +1260,7 @@ static void __gmap_unshadow_r3t(struct gmap *sg, unsigned long raddr,
/* Free segment table */
page = pfn_to_page(__pa(sgt) >> PAGE_SHIFT);
list_del(&page->lru);
- __free_pages(page, 2);
+ __free_pages(page, CRST_ALLOC_ORDER);
}
}
@@ -1277,8 +1280,8 @@ static void gmap_unshadow_r3t(struct gmap *sg, unsigned long raddr)
r2e = gmap_table_walk(sg, raddr, 3); /* get region-2 pointer */
if (!r2e || !(*r2e & _REGION_ENTRY_ORIGIN))
return;
- gmap_call_notifier(sg, raddr, raddr + (1UL << 42) - 1);
- r2o = (unsigned long) (r2e - ((raddr >> 42) & 0x7ff));
+ gmap_call_notifier(sg, raddr, raddr + _REGION2_SIZE - 1);
+ r2o = (unsigned long) (r2e - ((raddr & _REGION2_INDEX) >> _REGION2_SHIFT));
gmap_idte_one(r2o | _ASCE_TYPE_REGION2, raddr);
r3t = (unsigned long *)(*r2e & _REGION_ENTRY_ORIGIN);
*r2e = _REGION2_ENTRY_EMPTY;
@@ -1286,7 +1289,7 @@ static void gmap_unshadow_r3t(struct gmap *sg, unsigned long raddr)
/* Free region 3 table */
page = pfn_to_page(__pa(r3t) >> PAGE_SHIFT);
list_del(&page->lru);
- __free_pages(page, 2);
+ __free_pages(page, CRST_ALLOC_ORDER);
}
/**
@@ -1306,7 +1309,7 @@ static void __gmap_unshadow_r2t(struct gmap *sg, unsigned long raddr,
BUG_ON(!gmap_is_shadow(sg));
asce = (unsigned long) r2t | _ASCE_TYPE_REGION2;
- for (i = 0; i < 2048; i++, raddr += 1UL << 42) {
+ for (i = 0; i < _CRST_ENTRIES; i++, raddr += _REGION2_SIZE) {
if (!(r2t[i] & _REGION_ENTRY_ORIGIN))
continue;
r3t = (unsigned long *)(r2t[i] & _REGION_ENTRY_ORIGIN);
@@ -1315,7 +1318,7 @@ static void __gmap_unshadow_r2t(struct gmap *sg, unsigned long raddr,
/* Free region 3 table */
page = pfn_to_page(__pa(r3t) >> PAGE_SHIFT);
list_del(&page->lru);
- __free_pages(page, 2);
+ __free_pages(page, CRST_ALLOC_ORDER);
}
}
@@ -1335,8 +1338,8 @@ static void gmap_unshadow_r2t(struct gmap *sg, unsigned long raddr)
r1e = gmap_table_walk(sg, raddr, 4); /* get region-1 pointer */
if (!r1e || !(*r1e & _REGION_ENTRY_ORIGIN))
return;
- gmap_call_notifier(sg, raddr, raddr + (1UL << 53) - 1);
- r1o = (unsigned long) (r1e - ((raddr >> 53) & 0x7ff));
+ gmap_call_notifier(sg, raddr, raddr + _REGION1_SIZE - 1);
+ r1o = (unsigned long) (r1e - ((raddr & _REGION1_INDEX) >> _REGION1_SHIFT));
gmap_idte_one(r1o | _ASCE_TYPE_REGION1, raddr);
r2t = (unsigned long *)(*r1e & _REGION_ENTRY_ORIGIN);
*r1e = _REGION1_ENTRY_EMPTY;
@@ -1344,7 +1347,7 @@ static void gmap_unshadow_r2t(struct gmap *sg, unsigned long raddr)
/* Free region 2 table */
page = pfn_to_page(__pa(r2t) >> PAGE_SHIFT);
list_del(&page->lru);
- __free_pages(page, 2);
+ __free_pages(page, CRST_ALLOC_ORDER);
}
/**
@@ -1364,7 +1367,7 @@ static void __gmap_unshadow_r1t(struct gmap *sg, unsigned long raddr,
BUG_ON(!gmap_is_shadow(sg));
asce = (unsigned long) r1t | _ASCE_TYPE_REGION1;
- for (i = 0; i < 2048; i++, raddr += 1UL << 53) {
+ for (i = 0; i < _CRST_ENTRIES; i++, raddr += _REGION1_SIZE) {
if (!(r1t[i] & _REGION_ENTRY_ORIGIN))
continue;
r2t = (unsigned long *)(r1t[i] & _REGION_ENTRY_ORIGIN);
@@ -1375,7 +1378,7 @@ static void __gmap_unshadow_r1t(struct gmap *sg, unsigned long raddr,
/* Free region 2 table */
page = pfn_to_page(__pa(r2t) >> PAGE_SHIFT);
list_del(&page->lru);
- __free_pages(page, 2);
+ __free_pages(page, CRST_ALLOC_ORDER);
}
}
@@ -1532,7 +1535,7 @@ struct gmap *gmap_shadow(struct gmap *parent, unsigned long asce,
/* protect after insertion, so it will get properly invalidated */
down_read(&parent->mm->mmap_sem);
rc = gmap_protect_range(parent, asce & _ASCE_ORIGIN,
- ((asce & _ASCE_TABLE_LENGTH) + 1) * 4096,
+ ((asce & _ASCE_TABLE_LENGTH) + 1) * PAGE_SIZE,
PROT_READ, PGSTE_VSIE_BIT);
up_read(&parent->mm->mmap_sem);
spin_lock(&parent->shadow_lock);
@@ -1575,7 +1578,7 @@ int gmap_shadow_r2t(struct gmap *sg, unsigned long saddr, unsigned long r2t,
BUG_ON(!gmap_is_shadow(sg));
/* Allocate a shadow region second table */
- page = alloc_pages(GFP_KERNEL, 2);
+ page = alloc_pages(GFP_KERNEL, CRST_ALLOC_ORDER);
if (!page)
return -ENOMEM;
page->index = r2t & _REGION_ENTRY_ORIGIN;
@@ -1611,10 +1614,10 @@ int gmap_shadow_r2t(struct gmap *sg, unsigned long saddr, unsigned long r2t,
}
spin_unlock(&sg->guest_table_lock);
/* Make r2t read-only in parent gmap page table */
- raddr = (saddr & 0xffe0000000000000UL) | _SHADOW_RMAP_REGION1;
+ raddr = (saddr & _REGION1_MASK) | _SHADOW_RMAP_REGION1;
origin = r2t & _REGION_ENTRY_ORIGIN;
- offset = ((r2t & _REGION_ENTRY_OFFSET) >> 6) * 4096;
- len = ((r2t & _REGION_ENTRY_LENGTH) + 1) * 4096 - offset;
+ offset = ((r2t & _REGION_ENTRY_OFFSET) >> 6) * PAGE_SIZE;
+ len = ((r2t & _REGION_ENTRY_LENGTH) + 1) * PAGE_SIZE - offset;
rc = gmap_protect_rmap(sg, raddr, origin + offset, len, PROT_READ);
spin_lock(&sg->guest_table_lock);
if (!rc) {
@@ -1631,7 +1634,7 @@ int gmap_shadow_r2t(struct gmap *sg, unsigned long saddr, unsigned long r2t,
return rc;
out_free:
spin_unlock(&sg->guest_table_lock);
- __free_pages(page, 2);
+ __free_pages(page, CRST_ALLOC_ORDER);
return rc;
}
EXPORT_SYMBOL_GPL(gmap_shadow_r2t);
@@ -1659,7 +1662,7 @@ int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t,
BUG_ON(!gmap_is_shadow(sg));
/* Allocate a shadow region second table */
- page = alloc_pages(GFP_KERNEL, 2);
+ page = alloc_pages(GFP_KERNEL, CRST_ALLOC_ORDER);
if (!page)
return -ENOMEM;
page->index = r3t & _REGION_ENTRY_ORIGIN;
@@ -1694,10 +1697,10 @@ int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t,
}
spin_unlock(&sg->guest_table_lock);
/* Make r3t read-only in parent gmap page table */
- raddr = (saddr & 0xfffffc0000000000UL) | _SHADOW_RMAP_REGION2;
+ raddr = (saddr & _REGION2_MASK) | _SHADOW_RMAP_REGION2;
origin = r3t & _REGION_ENTRY_ORIGIN;
- offset = ((r3t & _REGION_ENTRY_OFFSET) >> 6) * 4096;
- len = ((r3t & _REGION_ENTRY_LENGTH) + 1) * 4096 - offset;
+ offset = ((r3t & _REGION_ENTRY_OFFSET) >> 6) * PAGE_SIZE;
+ len = ((r3t & _REGION_ENTRY_LENGTH) + 1) * PAGE_SIZE - offset;
rc = gmap_protect_rmap(sg, raddr, origin + offset, len, PROT_READ);
spin_lock(&sg->guest_table_lock);
if (!rc) {
@@ -1714,7 +1717,7 @@ int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t,
return rc;
out_free:
spin_unlock(&sg->guest_table_lock);
- __free_pages(page, 2);
+ __free_pages(page, CRST_ALLOC_ORDER);
return rc;
}
EXPORT_SYMBOL_GPL(gmap_shadow_r3t);
@@ -1742,7 +1745,7 @@ int gmap_shadow_sgt(struct gmap *sg, unsigned long saddr, unsigned long sgt,
BUG_ON(!gmap_is_shadow(sg) || (sgt & _REGION3_ENTRY_LARGE));
/* Allocate a shadow segment table */
- page = alloc_pages(GFP_KERNEL, 2);
+ page = alloc_pages(GFP_KERNEL, CRST_ALLOC_ORDER);
if (!page)
return -ENOMEM;
page->index = sgt & _REGION_ENTRY_ORIGIN;
@@ -1778,10 +1781,10 @@ int gmap_shadow_sgt(struct gmap *sg, unsigned long saddr, unsigned long sgt,
}
spin_unlock(&sg->guest_table_lock);
/* Make sgt read-only in parent gmap page table */
- raddr = (saddr & 0xffffffff80000000UL) | _SHADOW_RMAP_REGION3;
+ raddr = (saddr & _REGION3_MASK) | _SHADOW_RMAP_REGION3;
origin = sgt & _REGION_ENTRY_ORIGIN;
- offset = ((sgt & _REGION_ENTRY_OFFSET) >> 6) * 4096;
- len = ((sgt & _REGION_ENTRY_LENGTH) + 1) * 4096 - offset;
+ offset = ((sgt & _REGION_ENTRY_OFFSET) >> 6) * PAGE_SIZE;
+ len = ((sgt & _REGION_ENTRY_LENGTH) + 1) * PAGE_SIZE - offset;
rc = gmap_protect_rmap(sg, raddr, origin + offset, len, PROT_READ);
spin_lock(&sg->guest_table_lock);
if (!rc) {
@@ -1798,7 +1801,7 @@ int gmap_shadow_sgt(struct gmap *sg, unsigned long saddr, unsigned long sgt,
return rc;
out_free:
spin_unlock(&sg->guest_table_lock);
- __free_pages(page, 2);
+ __free_pages(page, CRST_ALLOC_ORDER);
return rc;
}
EXPORT_SYMBOL_GPL(gmap_shadow_sgt);
@@ -1899,7 +1902,7 @@ int gmap_shadow_pgt(struct gmap *sg, unsigned long saddr, unsigned long pgt,
}
spin_unlock(&sg->guest_table_lock);
/* Make pgt read-only in parent gmap page table (not the pgste) */
- raddr = (saddr & 0xfffffffffff00000UL) | _SHADOW_RMAP_SEGMENT;
+ raddr = (saddr & _SEGMENT_MASK) | _SHADOW_RMAP_SEGMENT;
origin = pgt & _SEGMENT_ENTRY_ORIGIN & PAGE_MASK;
rc = gmap_protect_rmap(sg, raddr, origin, PAGE_SIZE, PROT_READ);
spin_lock(&sg->guest_table_lock);
@@ -2018,7 +2021,7 @@ static void gmap_shadow_notify(struct gmap *sg, unsigned long vmaddr,
}
/* Check for top level table */
start = sg->orig_asce & _ASCE_ORIGIN;
- end = start + ((sg->orig_asce & _ASCE_TABLE_LENGTH) + 1) * 4096;
+ end = start + ((sg->orig_asce & _ASCE_TABLE_LENGTH) + 1) * PAGE_SIZE;
if (!(sg->orig_asce & _ASCE_REAL_SPACE) && gaddr >= start &&
gaddr < end) {
/* The complete shadow table has to go */
@@ -2029,7 +2032,7 @@ static void gmap_shadow_notify(struct gmap *sg, unsigned long vmaddr,
return;
}
/* Remove the page table tree from on specific entry */
- head = radix_tree_delete(&sg->host_to_rmap, vmaddr >> 12);
+ head = radix_tree_delete(&sg->host_to_rmap, vmaddr >> PAGE_SHIFT);
gmap_for_each_rmap_safe(rmap, rnext, head) {
bits = rmap->raddr & _SHADOW_RMAP_MASK;
raddr = rmap->raddr ^ bits;
@@ -2073,7 +2076,7 @@ void ptep_notify(struct mm_struct *mm, unsigned long vmaddr,
struct gmap *gmap, *sg, *next;
offset = ((unsigned long) pte) & (255 * sizeof(pte_t));
- offset = offset * (4096 / sizeof(pte_t));
+ offset = offset * (PAGE_SIZE / sizeof(pte_t));
rcu_read_lock();
list_for_each_entry_rcu(gmap, &mm->context.gmap_list, list) {
spin_lock(&gmap->guest_table_lock);
@@ -2118,6 +2121,37 @@ static inline void thp_split_mm(struct mm_struct *mm)
}
/*
+ * Remove all empty zero pages from the mapping for lazy refaulting
+ * - This must be called after mm->context.has_pgste is set, to avoid
+ * future creation of zero pages
+ * - This must be called after THP was enabled
+ */
+static int __zap_zero_pages(pmd_t *pmd, unsigned long start,
+ unsigned long end, struct mm_walk *walk)
+{
+ unsigned long addr;
+
+ for (addr = start; addr != end; addr += PAGE_SIZE) {
+ pte_t *ptep;
+ spinlock_t *ptl;
+
+ ptep = pte_offset_map_lock(walk->mm, pmd, addr, &ptl);
+ if (is_zero_pfn(pte_pfn(*ptep)))
+ ptep_xchg_direct(walk->mm, addr, ptep, __pte(_PAGE_INVALID));
+ pte_unmap_unlock(ptep, ptl);
+ }
+ return 0;
+}
+
+static inline void zap_zero_pages(struct mm_struct *mm)
+{
+ struct mm_walk walk = { .pmd_entry = __zap_zero_pages };
+
+ walk.mm = mm;
+ walk_page_range(0, TASK_SIZE, &walk);
+}
+
+/*
* switch on pgstes for its userspace process (for kvm)
*/
int s390_enable_sie(void)
@@ -2134,6 +2168,7 @@ int s390_enable_sie(void)
mm->context.has_pgste = 1;
/* split thp mappings and disable thp for future mappings */
thp_split_mm(mm);
+ zap_zero_pages(mm);
up_write(&mm->mmap_sem);
return 0;
}
@@ -2146,13 +2181,6 @@ EXPORT_SYMBOL_GPL(s390_enable_sie);
static int __s390_enable_skey(pte_t *pte, unsigned long addr,
unsigned long next, struct mm_walk *walk)
{
- /*
- * Remove all zero page mappings,
- * after establishing a policy to forbid zero page mappings
- * following faults for that page will get fresh anonymous pages
- */
- if (is_zero_pfn(pte_pfn(*pte)))
- ptep_xchg_direct(walk->mm, addr, pte, __pte(_PAGE_INVALID));
/* Clear storage key */
ptep_zap_key(walk->mm, addr, pte);
return 0;
diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c
index b7b779c40a5b..98ffe3ee9411 100644
--- a/arch/s390/mm/gup.c
+++ b/arch/s390/mm/gup.c
@@ -56,13 +56,12 @@ static inline int gup_pte_range(pmd_t *pmdp, pmd_t pmd, unsigned long addr,
static inline int gup_huge_pmd(pmd_t *pmdp, pmd_t pmd, unsigned long addr,
unsigned long end, int write, struct page **pages, int *nr)
{
- unsigned long mask, result;
struct page *head, *page;
+ unsigned long mask;
int refs;
- result = write ? 0 : _SEGMENT_ENTRY_PROTECT;
- mask = result | _SEGMENT_ENTRY_INVALID;
- if ((pmd_val(pmd) & mask) != result)
+ mask = (write ? _SEGMENT_ENTRY_PROTECT : 0) | _SEGMENT_ENTRY_INVALID;
+ if ((pmd_val(pmd) & mask) != 0)
return 0;
VM_BUG_ON(!pfn_valid(pmd_val(pmd) >> PAGE_SHIFT));
@@ -166,15 +165,15 @@ static int gup_huge_pud(pud_t *pudp, pud_t pud, unsigned long addr,
return 1;
}
-static inline int gup_pud_range(pgd_t *pgdp, pgd_t pgd, unsigned long addr,
+static inline int gup_pud_range(p4d_t *p4dp, p4d_t p4d, unsigned long addr,
unsigned long end, int write, struct page **pages, int *nr)
{
unsigned long next;
pud_t *pudp, pud;
- pudp = (pud_t *) pgdp;
- if ((pgd_val(pgd) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R2)
- pudp = (pud_t *) pgd_deref(pgd);
+ pudp = (pud_t *) p4dp;
+ if ((p4d_val(p4d) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R2)
+ pudp = (pud_t *) p4d_deref(p4d);
pudp += pud_index(addr);
do {
pud = *pudp;
@@ -194,6 +193,29 @@ static inline int gup_pud_range(pgd_t *pgdp, pgd_t pgd, unsigned long addr,
return 1;
}
+static inline int gup_p4d_range(pgd_t *pgdp, pgd_t pgd, unsigned long addr,
+ unsigned long end, int write, struct page **pages, int *nr)
+{
+ unsigned long next;
+ p4d_t *p4dp, p4d;
+
+ p4dp = (p4d_t *) pgdp;
+ if ((pgd_val(pgd) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R1)
+ p4dp = (p4d_t *) pgd_deref(pgd);
+ p4dp += p4d_index(addr);
+ do {
+ p4d = *p4dp;
+ barrier();
+ next = p4d_addr_end(addr, end);
+ if (p4d_none(p4d))
+ return 0;
+ if (!gup_pud_range(p4dp, p4d, addr, next, write, pages, nr))
+ return 0;
+ } while (p4dp++, addr = next, addr != end);
+
+ return 1;
+}
+
/*
* Like get_user_pages_fast() except its IRQ-safe in that it won't fall
* back to the regular GUP.
@@ -228,7 +250,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
next = pgd_addr_end(addr, end);
if (pgd_none(pgd))
break;
- if (!gup_pud_range(pgdp, pgd, addr, next, write, pages, &nr))
+ if (!gup_p4d_range(pgdp, pgd, addr, next, write, pages, &nr))
break;
} while (pgdp++, addr = next, addr != end);
local_irq_restore(flags);
diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c
index 9b4050caa4e9..44a8e6f0391e 100644
--- a/arch/s390/mm/hugetlbpage.c
+++ b/arch/s390/mm/hugetlbpage.c
@@ -162,33 +162,42 @@ pte_t *huge_pte_alloc(struct mm_struct *mm,
unsigned long addr, unsigned long sz)
{
pgd_t *pgdp;
+ p4d_t *p4dp;
pud_t *pudp;
pmd_t *pmdp = NULL;
pgdp = pgd_offset(mm, addr);
- pudp = pud_alloc(mm, pgdp, addr);
- if (pudp) {
- if (sz == PUD_SIZE)
- return (pte_t *) pudp;
- else if (sz == PMD_SIZE)
- pmdp = pmd_alloc(mm, pudp, addr);
+ p4dp = p4d_alloc(mm, pgdp, addr);
+ if (p4dp) {
+ pudp = pud_alloc(mm, p4dp, addr);
+ if (pudp) {
+ if (sz == PUD_SIZE)
+ return (pte_t *) pudp;
+ else if (sz == PMD_SIZE)
+ pmdp = pmd_alloc(mm, pudp, addr);
+ }
}
return (pte_t *) pmdp;
}
-pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
+pte_t *huge_pte_offset(struct mm_struct *mm,
+ unsigned long addr, unsigned long sz)
{
pgd_t *pgdp;
+ p4d_t *p4dp;
pud_t *pudp;
pmd_t *pmdp = NULL;
pgdp = pgd_offset(mm, addr);
if (pgd_present(*pgdp)) {
- pudp = pud_offset(pgdp, addr);
- if (pud_present(*pudp)) {
- if (pud_large(*pudp))
- return (pte_t *) pudp;
- pmdp = pmd_offset(pudp, addr);
+ p4dp = p4d_offset(pgdp, addr);
+ if (p4d_present(*p4dp)) {
+ pudp = pud_offset(p4dp, addr);
+ if (pud_present(*pudp)) {
+ if (pud_large(*pudp))
+ return (pte_t *) pudp;
+ pmdp = pmd_offset(pudp, addr);
+ }
}
}
return (pte_t *) pmdp;
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index ee6a1d3d4983..3b567838b905 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -26,6 +26,7 @@
#include <linux/poison.h>
#include <linux/initrd.h>
#include <linux/export.h>
+#include <linux/cma.h>
#include <linux/gfp.h>
#include <linux/memblock.h>
#include <asm/processor.h>
@@ -81,9 +82,10 @@ void __init paging_init(void)
{
unsigned long max_zone_pfns[MAX_NR_ZONES];
unsigned long pgd_type, asce_bits;
+ psw_t psw;
init_mm.pgd = swapper_pg_dir;
- if (VMALLOC_END > (1UL << 42)) {
+ if (VMALLOC_END > _REGION2_SIZE) {
asce_bits = _ASCE_TYPE_REGION2 | _ASCE_TABLE_LENGTH;
pgd_type = _REGION2_ENTRY_EMPTY;
} else {
@@ -92,15 +94,17 @@ void __init paging_init(void)
}
init_mm.context.asce = (__pa(init_mm.pgd) & PAGE_MASK) | asce_bits;
S390_lowcore.kernel_asce = init_mm.context.asce;
- clear_table((unsigned long *) init_mm.pgd, pgd_type,
- sizeof(unsigned long)*2048);
+ crst_table_init((unsigned long *) init_mm.pgd, pgd_type);
vmem_map_init();
/* enable virtual mapping in kernel mode */
__ctl_load(S390_lowcore.kernel_asce, 1, 1);
__ctl_load(S390_lowcore.kernel_asce, 7, 7);
__ctl_load(S390_lowcore.kernel_asce, 13, 13);
- __arch_local_irq_stosm(0x04);
+ psw.mask = __extract_psw();
+ psw_bits(psw).dat = 1;
+ psw_bits(psw).as = PSW_BITS_AS_HOME;
+ __load_psw_mask(psw.mask);
sparse_memory_present_with_active_regions(MAX_NUMNODES);
sparse_init();
@@ -133,6 +137,8 @@ void __init mem_init(void)
free_all_bootmem();
setup_zero_pages(); /* Setup zeroed pages. */
+ cmma_init_nodat();
+
mem_init_print_info(NULL);
}
@@ -162,43 +168,69 @@ unsigned long memory_block_size_bytes(void)
}
#ifdef CONFIG_MEMORY_HOTPLUG
-int arch_add_memory(int nid, u64 start, u64 size, bool for_device)
+
+#ifdef CONFIG_CMA
+
+/* Prevent memory blocks which contain cma regions from going offline */
+
+struct s390_cma_mem_data {
+ unsigned long start;
+ unsigned long end;
+};
+
+static int s390_cma_check_range(struct cma *cma, void *data)
+{
+ struct s390_cma_mem_data *mem_data;
+ unsigned long start, end;
+
+ mem_data = data;
+ start = cma_get_base(cma);
+ end = start + cma_get_size(cma);
+ if (end < mem_data->start)
+ return 0;
+ if (start >= mem_data->end)
+ return 0;
+ return -EBUSY;
+}
+
+static int s390_cma_mem_notifier(struct notifier_block *nb,
+ unsigned long action, void *data)
+{
+ struct s390_cma_mem_data mem_data;
+ struct memory_notify *arg;
+ int rc = 0;
+
+ arg = data;
+ mem_data.start = arg->start_pfn << PAGE_SHIFT;
+ mem_data.end = mem_data.start + (arg->nr_pages << PAGE_SHIFT);
+ if (action == MEM_GOING_OFFLINE)
+ rc = cma_for_each_area(s390_cma_check_range, &mem_data);
+ return notifier_from_errno(rc);
+}
+
+static struct notifier_block s390_cma_mem_nb = {
+ .notifier_call = s390_cma_mem_notifier,
+};
+
+static int __init s390_cma_mem_init(void)
+{
+ return register_memory_notifier(&s390_cma_mem_nb);
+}
+device_initcall(s390_cma_mem_init);
+
+#endif /* CONFIG_CMA */
+
+int arch_add_memory(int nid, u64 start, u64 size, bool want_memblock)
{
- unsigned long zone_start_pfn, zone_end_pfn, nr_pages;
unsigned long start_pfn = PFN_DOWN(start);
unsigned long size_pages = PFN_DOWN(size);
- pg_data_t *pgdat = NODE_DATA(nid);
- struct zone *zone;
- int rc, i;
+ int rc;
rc = vmem_add_mapping(start, size);
if (rc)
return rc;
- for (i = 0; i < MAX_NR_ZONES; i++) {
- zone = pgdat->node_zones + i;
- if (zone_idx(zone) != ZONE_MOVABLE) {
- /* Add range within existing zone limits, if possible */
- zone_start_pfn = zone->zone_start_pfn;
- zone_end_pfn = zone->zone_start_pfn +
- zone->spanned_pages;
- } else {
- /* Add remaining range to ZONE_MOVABLE */
- zone_start_pfn = start_pfn;
- zone_end_pfn = start_pfn + size_pages;
- }
- if (start_pfn < zone_start_pfn || start_pfn >= zone_end_pfn)
- continue;
- nr_pages = (start_pfn + size_pages > zone_end_pfn) ?
- zone_end_pfn - start_pfn : size_pages;
- rc = __add_pages(nid, zone, start_pfn, nr_pages);
- if (rc)
- break;
- start_pfn += nr_pages;
- size_pages -= nr_pages;
- if (!size_pages)
- break;
- }
+ rc = __add_pages(nid, start_pfn, size_pages, want_memblock);
if (rc)
vmem_remove_mapping(start, size);
return rc;
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index b854b1da281a..5bea139517a2 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -119,8 +119,9 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
return addr;
check_asce_limit:
- if (addr + len > current->mm->context.asce_limit) {
- rc = crst_table_upgrade(mm);
+ if (addr + len > current->mm->context.asce_limit &&
+ addr + len <= TASK_SIZE) {
+ rc = crst_table_upgrade(mm, addr + len);
if (rc)
return (unsigned long) rc;
}
@@ -183,8 +184,9 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
}
check_asce_limit:
- if (addr + len > current->mm->context.asce_limit) {
- rc = crst_table_upgrade(mm);
+ if (addr + len > current->mm->context.asce_limit &&
+ addr + len <= TASK_SIZE) {
+ rc = crst_table_upgrade(mm, addr + len);
if (rc)
return (unsigned long) rc;
}
diff --git a/arch/s390/mm/page-states.c b/arch/s390/mm/page-states.c
index 69a7b01ae746..07fa7b8ae233 100644
--- a/arch/s390/mm/page-states.c
+++ b/arch/s390/mm/page-states.c
@@ -10,9 +10,10 @@
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/mm.h>
+#include <linux/memblock.h>
#include <linux/gfp.h>
#include <linux/init.h>
-
+#include <asm/facility.h>
#include <asm/page-states.h>
static int cmma_flag = 1;
@@ -36,14 +37,16 @@ __setup("cmma=", cmma);
static inline int cmma_test_essa(void)
{
register unsigned long tmp asm("0") = 0;
- register int rc asm("1") = -EOPNOTSUPP;
+ register int rc asm("1");
+ /* test ESSA_GET_STATE */
asm volatile(
- " .insn rrf,0xb9ab0000,%1,%1,0,0\n"
+ " .insn rrf,0xb9ab0000,%1,%1,%2,0\n"
"0: la %0,0\n"
"1:\n"
EX_TABLE(0b,1b)
- : "+&d" (rc), "+&d" (tmp));
+ : "=&d" (rc), "+&d" (tmp)
+ : "i" (ESSA_GET_STATE), "0" (-EOPNOTSUPP));
return rc;
}
@@ -51,11 +54,26 @@ void __init cmma_init(void)
{
if (!cmma_flag)
return;
- if (cmma_test_essa())
+ if (cmma_test_essa()) {
cmma_flag = 0;
+ return;
+ }
+ if (test_facility(147))
+ cmma_flag = 2;
}
-static inline void set_page_unstable(struct page *page, int order)
+static inline unsigned char get_page_state(struct page *page)
+{
+ unsigned char state;
+
+ asm volatile(" .insn rrf,0xb9ab0000,%0,%1,%2,0"
+ : "=&d" (state)
+ : "a" (page_to_phys(page)),
+ "i" (ESSA_GET_STATE));
+ return state & 0x3f;
+}
+
+static inline void set_page_unused(struct page *page, int order)
{
int i, rc;
@@ -66,14 +84,18 @@ static inline void set_page_unstable(struct page *page, int order)
"i" (ESSA_SET_UNUSED));
}
-void arch_free_page(struct page *page, int order)
+static inline void set_page_stable_dat(struct page *page, int order)
{
- if (!cmma_flag)
- return;
- set_page_unstable(page, order);
+ int i, rc;
+
+ for (i = 0; i < (1 << order); i++)
+ asm volatile(".insn rrf,0xb9ab0000,%0,%1,%2,0"
+ : "=&d" (rc)
+ : "a" (page_to_phys(page + i)),
+ "i" (ESSA_SET_STABLE));
}
-static inline void set_page_stable(struct page *page, int order)
+static inline void set_page_stable_nodat(struct page *page, int order)
{
int i, rc;
@@ -81,14 +103,154 @@ static inline void set_page_stable(struct page *page, int order)
asm volatile(".insn rrf,0xb9ab0000,%0,%1,%2,0"
: "=&d" (rc)
: "a" (page_to_phys(page + i)),
- "i" (ESSA_SET_STABLE));
+ "i" (ESSA_SET_STABLE_NODAT));
+}
+
+static void mark_kernel_pmd(pud_t *pud, unsigned long addr, unsigned long end)
+{
+ unsigned long next;
+ struct page *page;
+ pmd_t *pmd;
+
+ pmd = pmd_offset(pud, addr);
+ do {
+ next = pmd_addr_end(addr, end);
+ if (pmd_none(*pmd) || pmd_large(*pmd))
+ continue;
+ page = virt_to_page(pmd_val(*pmd));
+ set_bit(PG_arch_1, &page->flags);
+ } while (pmd++, addr = next, addr != end);
+}
+
+static void mark_kernel_pud(p4d_t *p4d, unsigned long addr, unsigned long end)
+{
+ unsigned long next;
+ struct page *page;
+ pud_t *pud;
+ int i;
+
+ pud = pud_offset(p4d, addr);
+ do {
+ next = pud_addr_end(addr, end);
+ if (pud_none(*pud) || pud_large(*pud))
+ continue;
+ if (!pud_folded(*pud)) {
+ page = virt_to_page(pud_val(*pud));
+ for (i = 0; i < 3; i++)
+ set_bit(PG_arch_1, &page[i].flags);
+ }
+ mark_kernel_pmd(pud, addr, next);
+ } while (pud++, addr = next, addr != end);
+}
+
+static void mark_kernel_p4d(pgd_t *pgd, unsigned long addr, unsigned long end)
+{
+ unsigned long next;
+ struct page *page;
+ p4d_t *p4d;
+ int i;
+
+ p4d = p4d_offset(pgd, addr);
+ do {
+ next = p4d_addr_end(addr, end);
+ if (p4d_none(*p4d))
+ continue;
+ if (!p4d_folded(*p4d)) {
+ page = virt_to_page(p4d_val(*p4d));
+ for (i = 0; i < 3; i++)
+ set_bit(PG_arch_1, &page[i].flags);
+ }
+ mark_kernel_pud(p4d, addr, next);
+ } while (p4d++, addr = next, addr != end);
+}
+
+static void mark_kernel_pgd(void)
+{
+ unsigned long addr, next;
+ struct page *page;
+ pgd_t *pgd;
+ int i;
+
+ addr = 0;
+ pgd = pgd_offset_k(addr);
+ do {
+ next = pgd_addr_end(addr, MODULES_END);
+ if (pgd_none(*pgd))
+ continue;
+ if (!pgd_folded(*pgd)) {
+ page = virt_to_page(pgd_val(*pgd));
+ for (i = 0; i < 3; i++)
+ set_bit(PG_arch_1, &page[i].flags);
+ }
+ mark_kernel_p4d(pgd, addr, next);
+ } while (pgd++, addr = next, addr != MODULES_END);
+}
+
+void __init cmma_init_nodat(void)
+{
+ struct memblock_region *reg;
+ struct page *page;
+ unsigned long start, end, ix;
+
+ if (cmma_flag < 2)
+ return;
+ /* Mark pages used in kernel page tables */
+ mark_kernel_pgd();
+
+ /* Set all kernel pages not used for page tables to stable/no-dat */
+ for_each_memblock(memory, reg) {
+ start = memblock_region_memory_base_pfn(reg);
+ end = memblock_region_memory_end_pfn(reg);
+ page = pfn_to_page(start);
+ for (ix = start; ix < end; ix++, page++) {
+ if (__test_and_clear_bit(PG_arch_1, &page->flags))
+ continue; /* skip page table pages */
+ if (!list_empty(&page->lru))
+ continue; /* skip free pages */
+ set_page_stable_nodat(page, 0);
+ }
+ }
+}
+
+void arch_free_page(struct page *page, int order)
+{
+ if (!cmma_flag)
+ return;
+ set_page_unused(page, order);
}
void arch_alloc_page(struct page *page, int order)
{
if (!cmma_flag)
return;
- set_page_stable(page, order);
+ if (cmma_flag < 2)
+ set_page_stable_dat(page, order);
+ else
+ set_page_stable_nodat(page, order);
+}
+
+void arch_set_page_dat(struct page *page, int order)
+{
+ if (!cmma_flag)
+ return;
+ set_page_stable_dat(page, order);
+}
+
+void arch_set_page_nodat(struct page *page, int order)
+{
+ if (cmma_flag < 2)
+ return;
+ set_page_stable_nodat(page, order);
+}
+
+int arch_test_page_nodat(struct page *page)
+{
+ unsigned char state;
+
+ if (cmma_flag < 2)
+ return 0;
+ state = get_page_state(page);
+ return !!(state & 0x20);
}
void arch_set_page_states(int make_stable)
@@ -108,9 +270,9 @@ void arch_set_page_states(int make_stable)
list_for_each(l, &zone->free_area[order].free_list[t]) {
page = list_entry(l, struct page, lru);
if (make_stable)
- set_page_stable(page, order);
+ set_page_stable_dat(page, 0);
else
- set_page_unstable(page, order);
+ set_page_unused(page, order);
}
}
spin_unlock_irqrestore(&zone->lock, flags);
diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c
index 49e721f3645e..552f898dfa74 100644
--- a/arch/s390/mm/pageattr.c
+++ b/arch/s390/mm/pageattr.c
@@ -7,6 +7,7 @@
#include <asm/cacheflush.h>
#include <asm/facility.h>
#include <asm/pgtable.h>
+#include <asm/pgalloc.h>
#include <asm/page.h>
#include <asm/set_memory.h>
@@ -191,7 +192,7 @@ static int split_pud_page(pud_t *pudp, unsigned long addr)
pud_t new;
int i, ro, nx;
- pm_dir = vmem_pmd_alloc();
+ pm_dir = vmem_crst_alloc(_SEGMENT_ENTRY_EMPTY);
if (!pm_dir)
return -ENOMEM;
pmd_addr = pud_pfn(*pudp) << PAGE_SHIFT;
@@ -229,14 +230,14 @@ static void modify_pud_page(pud_t *pudp, unsigned long addr,
pgt_set((unsigned long *)pudp, pud_val(new), addr, CRDTE_DTT_REGION3);
}
-static int walk_pud_level(pgd_t *pgd, unsigned long addr, unsigned long end,
+static int walk_pud_level(p4d_t *p4d, unsigned long addr, unsigned long end,
unsigned long flags)
{
unsigned long next;
pud_t *pudp;
int rc = 0;
- pudp = pud_offset(pgd, addr);
+ pudp = pud_offset(p4d, addr);
do {
if (pud_none(*pudp))
return -EINVAL;
@@ -259,6 +260,26 @@ static int walk_pud_level(pgd_t *pgd, unsigned long addr, unsigned long end,
return rc;
}
+static int walk_p4d_level(pgd_t *pgd, unsigned long addr, unsigned long end,
+ unsigned long flags)
+{
+ unsigned long next;
+ p4d_t *p4dp;
+ int rc = 0;
+
+ p4dp = p4d_offset(pgd, addr);
+ do {
+ if (p4d_none(*p4dp))
+ return -EINVAL;
+ next = p4d_addr_end(addr, end);
+ rc = walk_pud_level(p4dp, addr, next, flags);
+ p4dp++;
+ addr = next;
+ cond_resched();
+ } while (addr < end && !rc);
+ return rc;
+}
+
static DEFINE_MUTEX(cpa_mutex);
static int change_page_attr(unsigned long addr, unsigned long end,
@@ -278,7 +299,7 @@ static int change_page_attr(unsigned long addr, unsigned long end,
if (pgd_none(*pgdp))
break;
next = pgd_addr_end(addr, end);
- rc = walk_pud_level(pgdp, addr, next, flags);
+ rc = walk_p4d_level(pgdp, addr, next, flags);
if (rc)
break;
cond_resched();
@@ -308,7 +329,7 @@ static void ipte_range(pte_t *pte, unsigned long address, int nr)
return;
}
for (i = 0; i < nr; i++) {
- __ptep_ipte(address, pte, IPTE_GLOBAL);
+ __ptep_ipte(address, pte, 0, 0, IPTE_GLOBAL);
address += PAGE_SIZE;
pte++;
}
@@ -319,6 +340,7 @@ void __kernel_map_pages(struct page *page, int numpages, int enable)
unsigned long address;
int nr, i, j;
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
@@ -326,7 +348,8 @@ void __kernel_map_pages(struct page *page, int numpages, int enable)
for (i = 0; i < numpages;) {
address = page_to_phys(page + i);
pgd = pgd_offset_k(address);
- pud = pud_offset(pgd, address);
+ p4d = p4d_offset(pgd, address);
+ pud = pud_offset(p4d, address);
pmd = pmd_offset(pud, address);
pte = pte_offset_kernel(pmd, address);
nr = (unsigned long)pte >> ilog2(sizeof(long));
diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c
index f502cbe657af..05f1f27e6708 100644
--- a/arch/s390/mm/pgalloc.c
+++ b/arch/s390/mm/pgalloc.c
@@ -57,6 +57,7 @@ unsigned long *crst_table_alloc(struct mm_struct *mm)
if (!page)
return NULL;
+ arch_set_page_dat(page, 2);
return (unsigned long *) page_to_phys(page);
}
@@ -76,29 +77,46 @@ static void __crst_table_upgrade(void *arg)
__tlb_flush_local();
}
-int crst_table_upgrade(struct mm_struct *mm)
+int crst_table_upgrade(struct mm_struct *mm, unsigned long end)
{
unsigned long *table, *pgd;
+ int rc, notify;
- /* upgrade should only happen from 3 to 4 levels */
- BUG_ON(mm->context.asce_limit != (1UL << 42));
-
- table = crst_table_alloc(mm);
- if (!table)
+ /* upgrade should only happen from 3 to 4, 3 to 5, or 4 to 5 levels */
+ VM_BUG_ON(mm->context.asce_limit < _REGION2_SIZE);
+ if (end >= TASK_SIZE_MAX)
return -ENOMEM;
-
- spin_lock_bh(&mm->page_table_lock);
- pgd = (unsigned long *) mm->pgd;
- crst_table_init(table, _REGION2_ENTRY_EMPTY);
- pgd_populate(mm, (pgd_t *) table, (pud_t *) pgd);
- mm->pgd = (pgd_t *) table;
- mm->context.asce_limit = 1UL << 53;
- mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH |
- _ASCE_USER_BITS | _ASCE_TYPE_REGION2;
- spin_unlock_bh(&mm->page_table_lock);
-
- on_each_cpu(__crst_table_upgrade, mm, 0);
- return 0;
+ rc = 0;
+ notify = 0;
+ while (mm->context.asce_limit < end) {
+ table = crst_table_alloc(mm);
+ if (!table) {
+ rc = -ENOMEM;
+ break;
+ }
+ spin_lock_bh(&mm->page_table_lock);
+ pgd = (unsigned long *) mm->pgd;
+ if (mm->context.asce_limit == _REGION2_SIZE) {
+ crst_table_init(table, _REGION2_ENTRY_EMPTY);
+ p4d_populate(mm, (p4d_t *) table, (pud_t *) pgd);
+ mm->pgd = (pgd_t *) table;
+ mm->context.asce_limit = _REGION1_SIZE;
+ mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH |
+ _ASCE_USER_BITS | _ASCE_TYPE_REGION2;
+ } else {
+ crst_table_init(table, _REGION1_ENTRY_EMPTY);
+ pgd_populate(mm, (pgd_t *) table, (p4d_t *) pgd);
+ mm->pgd = (pgd_t *) table;
+ mm->context.asce_limit = -PAGE_SIZE;
+ mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH |
+ _ASCE_USER_BITS | _ASCE_TYPE_REGION1;
+ }
+ notify = 1;
+ spin_unlock_bh(&mm->page_table_lock);
+ }
+ if (notify)
+ on_each_cpu(__crst_table_upgrade, mm, 0);
+ return rc;
}
void crst_table_downgrade(struct mm_struct *mm)
@@ -106,7 +124,7 @@ void crst_table_downgrade(struct mm_struct *mm)
pgd_t *pgd;
/* downgrade should only happen from 3 to 2 levels (compat only) */
- BUG_ON(mm->context.asce_limit != (1UL << 42));
+ VM_BUG_ON(mm->context.asce_limit != _REGION2_SIZE);
if (current->active_mm == mm) {
clear_user_asce();
@@ -115,7 +133,7 @@ void crst_table_downgrade(struct mm_struct *mm)
pgd = mm->pgd;
mm->pgd = (pgd_t *) (pgd_val(*pgd) & _REGION_ENTRY_ORIGIN);
- mm->context.asce_limit = 1UL << 31;
+ mm->context.asce_limit = _REGION3_SIZE;
mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH |
_ASCE_USER_BITS | _ASCE_TYPE_SEGMENT;
crst_table_free(mm, (unsigned long *) pgd);
@@ -170,7 +188,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
/* Try to get a fragment of a 4K page as a 2K page table */
if (!mm_alloc_pgste(mm)) {
table = NULL;
- spin_lock_bh(&mm->context.pgtable_lock);
+ spin_lock_bh(&mm->context.lock);
if (!list_empty(&mm->context.pgtable_list)) {
page = list_first_entry(&mm->context.pgtable_list,
struct page, lru);
@@ -185,7 +203,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
list_del(&page->lru);
}
}
- spin_unlock_bh(&mm->context.pgtable_lock);
+ spin_unlock_bh(&mm->context.lock);
if (table)
return table;
}
@@ -197,6 +215,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
__free_page(page);
return NULL;
}
+ arch_set_page_dat(page, 0);
/* Initialize page table */
table = (unsigned long *) page_to_phys(page);
if (mm_alloc_pgste(mm)) {
@@ -208,9 +227,9 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
/* Return the first 2K fragment of the page */
atomic_set(&page->_mapcount, 1);
clear_table(table, _PAGE_INVALID, PAGE_SIZE);
- spin_lock_bh(&mm->context.pgtable_lock);
+ spin_lock_bh(&mm->context.lock);
list_add(&page->lru, &mm->context.pgtable_list);
- spin_unlock_bh(&mm->context.pgtable_lock);
+ spin_unlock_bh(&mm->context.lock);
}
return table;
}
@@ -224,13 +243,13 @@ void page_table_free(struct mm_struct *mm, unsigned long *table)
if (!mm_alloc_pgste(mm)) {
/* Free 2K page table fragment of a 4K page */
bit = (__pa(table) & ~PAGE_MASK)/(PTRS_PER_PTE*sizeof(pte_t));
- spin_lock_bh(&mm->context.pgtable_lock);
+ spin_lock_bh(&mm->context.lock);
mask = atomic_xor_bits(&page->_mapcount, 1U << bit);
if (mask & 3)
list_add(&page->lru, &mm->context.pgtable_list);
else
list_del(&page->lru);
- spin_unlock_bh(&mm->context.pgtable_lock);
+ spin_unlock_bh(&mm->context.lock);
if (mask != 0)
return;
}
@@ -256,13 +275,13 @@ void page_table_free_rcu(struct mmu_gather *tlb, unsigned long *table,
return;
}
bit = (__pa(table) & ~PAGE_MASK) / (PTRS_PER_PTE*sizeof(pte_t));
- spin_lock_bh(&mm->context.pgtable_lock);
+ spin_lock_bh(&mm->context.lock);
mask = atomic_xor_bits(&page->_mapcount, 0x11U << bit);
if (mask & 3)
list_add_tail(&page->lru, &mm->context.pgtable_list);
else
list_del(&page->lru);
- spin_unlock_bh(&mm->context.pgtable_lock);
+ spin_unlock_bh(&mm->context.lock);
table = (unsigned long *) (__pa(table) | (1U << bit));
tlb_remove_table(tlb, table);
}
@@ -274,7 +293,7 @@ static void __tlb_remove_table(void *_table)
struct page *page = pfn_to_page(__pa(table) >> PAGE_SHIFT);
switch (mask) {
- case 0: /* pmd or pud */
+ case 0: /* pmd, pud, or p4d */
free_pages((unsigned long) table, 2);
break;
case 1: /* lower 2K of a 4K page table */
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 947b66a5cdba..ae677f814bc0 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -25,8 +25,49 @@
#include <asm/mmu_context.h>
#include <asm/page-states.h>
+static inline void ptep_ipte_local(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep, int nodat)
+{
+ unsigned long opt, asce;
+
+ if (MACHINE_HAS_TLB_GUEST) {
+ opt = 0;
+ asce = READ_ONCE(mm->context.gmap_asce);
+ if (asce == 0UL || nodat)
+ opt |= IPTE_NODAT;
+ if (asce != -1UL) {
+ asce = asce ? : mm->context.asce;
+ opt |= IPTE_GUEST_ASCE;
+ }
+ __ptep_ipte(addr, ptep, opt, asce, IPTE_LOCAL);
+ } else {
+ __ptep_ipte(addr, ptep, 0, 0, IPTE_LOCAL);
+ }
+}
+
+static inline void ptep_ipte_global(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep, int nodat)
+{
+ unsigned long opt, asce;
+
+ if (MACHINE_HAS_TLB_GUEST) {
+ opt = 0;
+ asce = READ_ONCE(mm->context.gmap_asce);
+ if (asce == 0UL || nodat)
+ opt |= IPTE_NODAT;
+ if (asce != -1UL) {
+ asce = asce ? : mm->context.asce;
+ opt |= IPTE_GUEST_ASCE;
+ }
+ __ptep_ipte(addr, ptep, opt, asce, IPTE_GLOBAL);
+ } else {
+ __ptep_ipte(addr, ptep, 0, 0, IPTE_GLOBAL);
+ }
+}
+
static inline pte_t ptep_flush_direct(struct mm_struct *mm,
- unsigned long addr, pte_t *ptep)
+ unsigned long addr, pte_t *ptep,
+ int nodat)
{
pte_t old;
@@ -36,15 +77,16 @@ static inline pte_t ptep_flush_direct(struct mm_struct *mm,
atomic_inc(&mm->context.flush_count);
if (MACHINE_HAS_TLB_LC &&
cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id())))
- __ptep_ipte(addr, ptep, IPTE_LOCAL);
+ ptep_ipte_local(mm, addr, ptep, nodat);
else
- __ptep_ipte(addr, ptep, IPTE_GLOBAL);
+ ptep_ipte_global(mm, addr, ptep, nodat);
atomic_dec(&mm->context.flush_count);
return old;
}
static inline pte_t ptep_flush_lazy(struct mm_struct *mm,
- unsigned long addr, pte_t *ptep)
+ unsigned long addr, pte_t *ptep,
+ int nodat)
{
pte_t old;
@@ -57,7 +99,7 @@ static inline pte_t ptep_flush_lazy(struct mm_struct *mm,
pte_val(*ptep) |= _PAGE_INVALID;
mm->context.flush_mm = 1;
} else
- __ptep_ipte(addr, ptep, IPTE_GLOBAL);
+ ptep_ipte_global(mm, addr, ptep, nodat);
atomic_dec(&mm->context.flush_count);
return old;
}
@@ -229,10 +271,12 @@ pte_t ptep_xchg_direct(struct mm_struct *mm, unsigned long addr,
{
pgste_t pgste;
pte_t old;
+ int nodat;
preempt_disable();
pgste = ptep_xchg_start(mm, addr, ptep);
- old = ptep_flush_direct(mm, addr, ptep);
+ nodat = !!(pgste_val(pgste) & _PGSTE_GPS_NODAT);
+ old = ptep_flush_direct(mm, addr, ptep, nodat);
old = ptep_xchg_commit(mm, addr, ptep, pgste, old, new);
preempt_enable();
return old;
@@ -244,10 +288,12 @@ pte_t ptep_xchg_lazy(struct mm_struct *mm, unsigned long addr,
{
pgste_t pgste;
pte_t old;
+ int nodat;
preempt_disable();
pgste = ptep_xchg_start(mm, addr, ptep);
- old = ptep_flush_lazy(mm, addr, ptep);
+ nodat = !!(pgste_val(pgste) & _PGSTE_GPS_NODAT);
+ old = ptep_flush_lazy(mm, addr, ptep, nodat);
old = ptep_xchg_commit(mm, addr, ptep, pgste, old, new);
preempt_enable();
return old;
@@ -259,10 +305,12 @@ pte_t ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr,
{
pgste_t pgste;
pte_t old;
+ int nodat;
preempt_disable();
pgste = ptep_xchg_start(mm, addr, ptep);
- old = ptep_flush_lazy(mm, addr, ptep);
+ nodat = !!(pgste_val(pgste) & _PGSTE_GPS_NODAT);
+ old = ptep_flush_lazy(mm, addr, ptep, nodat);
if (mm_has_pgste(mm)) {
pgste = pgste_update_all(old, pgste, mm);
pgste_set(ptep, pgste);
@@ -290,6 +338,28 @@ void ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr,
}
EXPORT_SYMBOL(ptep_modify_prot_commit);
+static inline void pmdp_idte_local(struct mm_struct *mm,
+ unsigned long addr, pmd_t *pmdp)
+{
+ if (MACHINE_HAS_TLB_GUEST)
+ __pmdp_idte(addr, pmdp, IDTE_NODAT | IDTE_GUEST_ASCE,
+ mm->context.asce, IDTE_LOCAL);
+ else
+ __pmdp_idte(addr, pmdp, 0, 0, IDTE_LOCAL);
+}
+
+static inline void pmdp_idte_global(struct mm_struct *mm,
+ unsigned long addr, pmd_t *pmdp)
+{
+ if (MACHINE_HAS_TLB_GUEST)
+ __pmdp_idte(addr, pmdp, IDTE_NODAT | IDTE_GUEST_ASCE,
+ mm->context.asce, IDTE_GLOBAL);
+ else if (MACHINE_HAS_IDTE)
+ __pmdp_idte(addr, pmdp, 0, 0, IDTE_GLOBAL);
+ else
+ __pmdp_csp(pmdp);
+}
+
static inline pmd_t pmdp_flush_direct(struct mm_struct *mm,
unsigned long addr, pmd_t *pmdp)
{
@@ -298,16 +368,12 @@ static inline pmd_t pmdp_flush_direct(struct mm_struct *mm,
old = *pmdp;
if (pmd_val(old) & _SEGMENT_ENTRY_INVALID)
return old;
- if (!MACHINE_HAS_IDTE) {
- __pmdp_csp(pmdp);
- return old;
- }
atomic_inc(&mm->context.flush_count);
if (MACHINE_HAS_TLB_LC &&
cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id())))
- __pmdp_idte(addr, pmdp, IDTE_LOCAL);
+ pmdp_idte_local(mm, addr, pmdp);
else
- __pmdp_idte(addr, pmdp, IDTE_GLOBAL);
+ pmdp_idte_global(mm, addr, pmdp);
atomic_dec(&mm->context.flush_count);
return old;
}
@@ -325,10 +391,9 @@ static inline pmd_t pmdp_flush_lazy(struct mm_struct *mm,
cpumask_of(smp_processor_id()))) {
pmd_val(*pmdp) |= _SEGMENT_ENTRY_INVALID;
mm->context.flush_mm = 1;
- } else if (MACHINE_HAS_IDTE)
- __pmdp_idte(addr, pmdp, IDTE_GLOBAL);
- else
- __pmdp_csp(pmdp);
+ } else {
+ pmdp_idte_global(mm, addr, pmdp);
+ }
atomic_dec(&mm->context.flush_count);
return old;
}
@@ -359,28 +424,46 @@ pmd_t pmdp_xchg_lazy(struct mm_struct *mm, unsigned long addr,
}
EXPORT_SYMBOL(pmdp_xchg_lazy);
-static inline pud_t pudp_flush_direct(struct mm_struct *mm,
- unsigned long addr, pud_t *pudp)
+static inline void pudp_idte_local(struct mm_struct *mm,
+ unsigned long addr, pud_t *pudp)
{
- pud_t old;
+ if (MACHINE_HAS_TLB_GUEST)
+ __pudp_idte(addr, pudp, IDTE_NODAT | IDTE_GUEST_ASCE,
+ mm->context.asce, IDTE_LOCAL);
+ else
+ __pudp_idte(addr, pudp, 0, 0, IDTE_LOCAL);
+}
- old = *pudp;
- if (pud_val(old) & _REGION_ENTRY_INVALID)
- return old;
- if (!MACHINE_HAS_IDTE) {
+static inline void pudp_idte_global(struct mm_struct *mm,
+ unsigned long addr, pud_t *pudp)
+{
+ if (MACHINE_HAS_TLB_GUEST)
+ __pudp_idte(addr, pudp, IDTE_NODAT | IDTE_GUEST_ASCE,
+ mm->context.asce, IDTE_GLOBAL);
+ else if (MACHINE_HAS_IDTE)
+ __pudp_idte(addr, pudp, 0, 0, IDTE_GLOBAL);
+ else
/*
* Invalid bit position is the same for pmd and pud, so we can
* re-use _pmd_csp() here
*/
__pmdp_csp((pmd_t *) pudp);
+}
+
+static inline pud_t pudp_flush_direct(struct mm_struct *mm,
+ unsigned long addr, pud_t *pudp)
+{
+ pud_t old;
+
+ old = *pudp;
+ if (pud_val(old) & _REGION_ENTRY_INVALID)
return old;
- }
atomic_inc(&mm->context.flush_count);
if (MACHINE_HAS_TLB_LC &&
cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id())))
- __pudp_idte(addr, pudp, IDTE_LOCAL);
+ pudp_idte_local(mm, addr, pudp);
else
- __pudp_idte(addr, pudp, IDTE_GLOBAL);
+ pudp_idte_global(mm, addr, pudp);
atomic_dec(&mm->context.flush_count);
return old;
}
@@ -482,7 +565,7 @@ int ptep_force_prot(struct mm_struct *mm, unsigned long addr,
{
pte_t entry;
pgste_t pgste;
- int pte_i, pte_p;
+ int pte_i, pte_p, nodat;
pgste = pgste_get_lock(ptep);
entry = *ptep;
@@ -495,13 +578,14 @@ int ptep_force_prot(struct mm_struct *mm, unsigned long addr,
return -EAGAIN;
}
/* Change access rights and set pgste bit */
+ nodat = !!(pgste_val(pgste) & _PGSTE_GPS_NODAT);
if (prot == PROT_NONE && !pte_i) {
- ptep_flush_direct(mm, addr, ptep);
+ ptep_flush_direct(mm, addr, ptep, nodat);
pgste = pgste_update_all(entry, pgste, mm);
pte_val(entry) |= _PAGE_INVALID;
}
if (prot == PROT_READ && !pte_p) {
- ptep_flush_direct(mm, addr, ptep);
+ ptep_flush_direct(mm, addr, ptep, nodat);
pte_val(entry) &= ~_PAGE_INVALID;
pte_val(entry) |= _PAGE_PROTECT;
}
@@ -541,10 +625,12 @@ int ptep_shadow_pte(struct mm_struct *mm, unsigned long saddr,
void ptep_unshadow_pte(struct mm_struct *mm, unsigned long saddr, pte_t *ptep)
{
pgste_t pgste;
+ int nodat;
pgste = pgste_get_lock(ptep);
/* notifier is called by the caller */
- ptep_flush_direct(mm, saddr, ptep);
+ nodat = !!(pgste_val(pgste) & _PGSTE_GPS_NODAT);
+ ptep_flush_direct(mm, saddr, ptep, nodat);
/* don't touch the storage key - it belongs to parent pgste */
pgste = pgste_set_pte(ptep, pgste, __pte(_PAGE_INVALID));
pgste_set_unlock(ptep, pgste);
@@ -591,11 +677,11 @@ void ptep_zap_key(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
unsigned long ptev;
pgste_t pgste;
- /* Clear storage key */
+ /* Clear storage key ACC and F, but set R/C */
preempt_disable();
pgste = pgste_get_lock(ptep);
- pgste_val(pgste) &= ~(PGSTE_ACC_BITS | PGSTE_FP_BIT |
- PGSTE_GR_BIT | PGSTE_GC_BIT);
+ pgste_val(pgste) &= ~(PGSTE_ACC_BITS | PGSTE_FP_BIT);
+ pgste_val(pgste) |= PGSTE_GR_BIT | PGSTE_GC_BIT;
ptev = pte_val(*ptep);
if (!(ptev & _PAGE_INVALID) && (ptev & _PAGE_WRITE))
page_set_storage_key(ptev & PAGE_MASK, PAGE_DEFAULT_KEY, 1);
@@ -610,15 +696,20 @@ bool test_and_clear_guest_dirty(struct mm_struct *mm, unsigned long addr)
{
spinlock_t *ptl;
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
pgste_t pgste;
pte_t *ptep;
pte_t pte;
bool dirty;
+ int nodat;
pgd = pgd_offset(mm, addr);
- pud = pud_alloc(mm, pgd, addr);
+ p4d = p4d_alloc(mm, pgd, addr);
+ if (!p4d)
+ return false;
+ pud = pud_alloc(mm, p4d, addr);
if (!pud)
return false;
pmd = pmd_alloc(mm, pud, addr);
@@ -641,7 +732,8 @@ bool test_and_clear_guest_dirty(struct mm_struct *mm, unsigned long addr)
pte = *ptep;
if (dirty && (pte_val(pte) & _PAGE_PRESENT)) {
pgste = pgste_pte_notify(mm, addr, ptep, pgste);
- __ptep_ipte(addr, ptep, IPTE_GLOBAL);
+ nodat = !!(pgste_val(pgste) & _PGSTE_GPS_NODAT);
+ ptep_ipte_global(mm, addr, ptep, nodat);
if (MACHINE_HAS_ESOP || !(pte_val(pte) & _PAGE_WRITE))
pte_val(pte) |= _PAGE_PROTECT;
else
@@ -827,7 +919,7 @@ int pgste_perform_essa(struct mm_struct *mm, unsigned long hva, int orc,
case ESSA_GET_STATE:
break;
case ESSA_SET_STABLE:
- pgstev &= ~_PGSTE_GPS_USAGE_MASK;
+ pgstev &= ~(_PGSTE_GPS_USAGE_MASK | _PGSTE_GPS_NODAT);
pgstev |= _PGSTE_GPS_USAGE_STABLE;
break;
case ESSA_SET_UNUSED:
@@ -873,6 +965,10 @@ int pgste_perform_essa(struct mm_struct *mm, unsigned long hva, int orc,
pgstev |= _PGSTE_GPS_USAGE_STABLE;
}
break;
+ case ESSA_SET_STABLE_NODAT:
+ pgstev &= ~_PGSTE_GPS_USAGE_MASK;
+ pgstev |= _PGSTE_GPS_USAGE_STABLE | _PGSTE_GPS_NODAT;
+ break;
default:
/* we should never get here! */
break;
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index c33c94b4be60..c0af0d7b6e5f 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -38,26 +38,14 @@ static void __ref *vmem_alloc_pages(unsigned int order)
return (void *) memblock_alloc(size, size);
}
-static inline pud_t *vmem_pud_alloc(void)
+void *vmem_crst_alloc(unsigned long val)
{
- pud_t *pud = NULL;
+ unsigned long *table;
- pud = vmem_alloc_pages(2);
- if (!pud)
- return NULL;
- clear_table((unsigned long *) pud, _REGION3_ENTRY_EMPTY, PAGE_SIZE * 4);
- return pud;
-}
-
-pmd_t *vmem_pmd_alloc(void)
-{
- pmd_t *pmd = NULL;
-
- pmd = vmem_alloc_pages(2);
- if (!pmd)
- return NULL;
- clear_table((unsigned long *) pmd, _SEGMENT_ENTRY_EMPTY, PAGE_SIZE * 4);
- return pmd;
+ table = vmem_alloc_pages(CRST_ALLOC_ORDER);
+ if (table)
+ crst_table_init(table, val);
+ return table;
}
pte_t __ref *vmem_pte_alloc(void)
@@ -85,6 +73,7 @@ static int vmem_add_mem(unsigned long start, unsigned long size)
unsigned long end = start + size;
unsigned long address = start;
pgd_t *pg_dir;
+ p4d_t *p4_dir;
pud_t *pu_dir;
pmd_t *pm_dir;
pte_t *pt_dir;
@@ -102,12 +91,19 @@ static int vmem_add_mem(unsigned long start, unsigned long size)
while (address < end) {
pg_dir = pgd_offset_k(address);
if (pgd_none(*pg_dir)) {
- pu_dir = vmem_pud_alloc();
+ p4_dir = vmem_crst_alloc(_REGION2_ENTRY_EMPTY);
+ if (!p4_dir)
+ goto out;
+ pgd_populate(&init_mm, pg_dir, p4_dir);
+ }
+ p4_dir = p4d_offset(pg_dir, address);
+ if (p4d_none(*p4_dir)) {
+ pu_dir = vmem_crst_alloc(_REGION3_ENTRY_EMPTY);
if (!pu_dir)
goto out;
- pgd_populate(&init_mm, pg_dir, pu_dir);
+ p4d_populate(&init_mm, p4_dir, pu_dir);
}
- pu_dir = pud_offset(pg_dir, address);
+ pu_dir = pud_offset(p4_dir, address);
if (MACHINE_HAS_EDAT2 && pud_none(*pu_dir) && address &&
!(address & ~PUD_MASK) && (address + PUD_SIZE <= end) &&
!debug_pagealloc_enabled()) {
@@ -117,7 +113,7 @@ static int vmem_add_mem(unsigned long start, unsigned long size)
continue;
}
if (pud_none(*pu_dir)) {
- pm_dir = vmem_pmd_alloc();
+ pm_dir = vmem_crst_alloc(_SEGMENT_ENTRY_EMPTY);
if (!pm_dir)
goto out;
pud_populate(&init_mm, pu_dir, pm_dir);
@@ -161,6 +157,7 @@ static void vmem_remove_range(unsigned long start, unsigned long size)
unsigned long end = start + size;
unsigned long address = start;
pgd_t *pg_dir;
+ p4d_t *p4_dir;
pud_t *pu_dir;
pmd_t *pm_dir;
pte_t *pt_dir;
@@ -172,7 +169,12 @@ static void vmem_remove_range(unsigned long start, unsigned long size)
address += PGDIR_SIZE;
continue;
}
- pu_dir = pud_offset(pg_dir, address);
+ p4_dir = p4d_offset(pg_dir, address);
+ if (p4d_none(*p4_dir)) {
+ address += P4D_SIZE;
+ continue;
+ }
+ pu_dir = pud_offset(p4_dir, address);
if (pud_none(*pu_dir)) {
address += PUD_SIZE;
continue;
@@ -213,6 +215,7 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node)
unsigned long pgt_prot, sgt_prot;
unsigned long address = start;
pgd_t *pg_dir;
+ p4d_t *p4_dir;
pud_t *pu_dir;
pmd_t *pm_dir;
pte_t *pt_dir;
@@ -227,15 +230,23 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node)
for (address = start; address < end;) {
pg_dir = pgd_offset_k(address);
if (pgd_none(*pg_dir)) {
- pu_dir = vmem_pud_alloc();
+ p4_dir = vmem_crst_alloc(_REGION2_ENTRY_EMPTY);
+ if (!p4_dir)
+ goto out;
+ pgd_populate(&init_mm, pg_dir, p4_dir);
+ }
+
+ p4_dir = p4d_offset(pg_dir, address);
+ if (p4d_none(*p4_dir)) {
+ pu_dir = vmem_crst_alloc(_REGION3_ENTRY_EMPTY);
if (!pu_dir)
goto out;
- pgd_populate(&init_mm, pg_dir, pu_dir);
+ p4d_populate(&init_mm, p4_dir, pu_dir);
}
- pu_dir = pud_offset(pg_dir, address);
+ pu_dir = pud_offset(p4_dir, address);
if (pud_none(*pu_dir)) {
- pm_dir = vmem_pmd_alloc();
+ pm_dir = vmem_crst_alloc(_SEGMENT_ENTRY_EMPTY);
if (!pm_dir)
goto out;
pud_populate(&init_mm, pu_dir, pm_dir);
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index 6e97a2e3fd8d..8ec88497a28d 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -991,7 +991,7 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
}
break;
}
- case BPF_JMP | BPF_CALL | BPF_X:
+ case BPF_JMP | BPF_TAIL_CALL:
/*
* Implicit input:
* B1: pointer to ctx
@@ -1093,15 +1093,27 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
case BPF_JMP | BPF_JSGT | BPF_K: /* ((s64) dst > (s64) imm) */
mask = 0x2000; /* jh */
goto branch_ks;
+ case BPF_JMP | BPF_JSLT | BPF_K: /* ((s64) dst < (s64) imm) */
+ mask = 0x4000; /* jl */
+ goto branch_ks;
case BPF_JMP | BPF_JSGE | BPF_K: /* ((s64) dst >= (s64) imm) */
mask = 0xa000; /* jhe */
goto branch_ks;
+ case BPF_JMP | BPF_JSLE | BPF_K: /* ((s64) dst <= (s64) imm) */
+ mask = 0xc000; /* jle */
+ goto branch_ks;
case BPF_JMP | BPF_JGT | BPF_K: /* (dst_reg > imm) */
mask = 0x2000; /* jh */
goto branch_ku;
+ case BPF_JMP | BPF_JLT | BPF_K: /* (dst_reg < imm) */
+ mask = 0x4000; /* jl */
+ goto branch_ku;
case BPF_JMP | BPF_JGE | BPF_K: /* (dst_reg >= imm) */
mask = 0xa000; /* jhe */
goto branch_ku;
+ case BPF_JMP | BPF_JLE | BPF_K: /* (dst_reg <= imm) */
+ mask = 0xc000; /* jle */
+ goto branch_ku;
case BPF_JMP | BPF_JNE | BPF_K: /* (dst_reg != imm) */
mask = 0x7000; /* jne */
goto branch_ku;
@@ -1119,15 +1131,27 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
case BPF_JMP | BPF_JSGT | BPF_X: /* ((s64) dst > (s64) src) */
mask = 0x2000; /* jh */
goto branch_xs;
+ case BPF_JMP | BPF_JSLT | BPF_X: /* ((s64) dst < (s64) src) */
+ mask = 0x4000; /* jl */
+ goto branch_xs;
case BPF_JMP | BPF_JSGE | BPF_X: /* ((s64) dst >= (s64) src) */
mask = 0xa000; /* jhe */
goto branch_xs;
+ case BPF_JMP | BPF_JSLE | BPF_X: /* ((s64) dst <= (s64) src) */
+ mask = 0xc000; /* jle */
+ goto branch_xs;
case BPF_JMP | BPF_JGT | BPF_X: /* (dst > src) */
mask = 0x2000; /* jh */
goto branch_xu;
+ case BPF_JMP | BPF_JLT | BPF_X: /* (dst < src) */
+ mask = 0x4000; /* jl */
+ goto branch_xu;
case BPF_JMP | BPF_JGE | BPF_X: /* (dst >= src) */
mask = 0xa000; /* jhe */
goto branch_xu;
+ case BPF_JMP | BPF_JLE | BPF_X: /* (dst <= src) */
+ mask = 0xc000; /* jle */
+ goto branch_xu;
case BPF_JMP | BPF_JNE | BPF_X: /* (dst != src) */
mask = 0x7000; /* jne */
goto branch_xu;
@@ -1253,7 +1277,8 @@ static int bpf_jit_prog(struct bpf_jit *jit, struct bpf_prog *fp)
insn_count = bpf_jit_insn(jit, fp, i);
if (insn_count < 0)
return -1;
- jit->addrs[i + 1] = jit->prg; /* Next instruction address */
+ /* Next instruction address */
+ jit->addrs[i + insn_count] = jit->prg;
}
bpf_jit_epilogue(jit);
@@ -1329,6 +1354,7 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *fp)
bpf_jit_binary_lock_ro(header);
fp->bpf_func = (void *) jit.prg_buf;
fp->jited = 1;
+ fp->jited_len = jit.size;
free_addrs:
kfree(jit.addrs);
out:
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 8051df109db3..a25d95a6612d 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -86,6 +86,25 @@ struct zpci_dev *get_zdev_by_fid(u32 fid)
return zdev;
}
+void zpci_remove_reserved_devices(void)
+{
+ struct zpci_dev *tmp, *zdev;
+ enum zpci_state state;
+ LIST_HEAD(remove);
+
+ spin_lock(&zpci_list_lock);
+ list_for_each_entry_safe(zdev, tmp, &zpci_list, entry) {
+ if (zdev->state == ZPCI_FN_STATE_STANDBY &&
+ !clp_get_state(zdev->fid, &state) &&
+ state == ZPCI_FN_STATE_RESERVED)
+ list_move_tail(&zdev->entry, &remove);
+ }
+ spin_unlock(&zpci_list_lock);
+
+ list_for_each_entry_safe(zdev, tmp, &remove, entry)
+ zpci_remove_device(zdev);
+}
+
static struct zpci_dev *get_zdev_by_bus(struct pci_bus *bus)
{
return (bus && bus->sysdata) ? (struct zpci_dev *) bus->sysdata : NULL;
@@ -108,6 +127,7 @@ static int zpci_set_airq(struct zpci_dev *zdev)
{
u64 req = ZPCI_CREATE_REQ(zdev->fh, 0, ZPCI_MOD_FC_REG_INT);
struct zpci_fib fib = {0};
+ u8 status;
fib.isc = PCI_ISC;
fib.sum = 1; /* enable summary notifications */
@@ -117,60 +137,58 @@ static int zpci_set_airq(struct zpci_dev *zdev)
fib.aisb = (unsigned long) zpci_aisb_iv->vector + (zdev->aisb/64)*8;
fib.aisbo = zdev->aisb & 63;
- return zpci_mod_fc(req, &fib);
+ return zpci_mod_fc(req, &fib, &status) ? -EIO : 0;
}
-struct mod_pci_args {
- u64 base;
- u64 limit;
- u64 iota;
- u64 fmb_addr;
-};
-
-static int mod_pci(struct zpci_dev *zdev, int fn, u8 dmaas, struct mod_pci_args *args)
+/* Modify PCI: Unregister adapter interruptions */
+static int zpci_clear_airq(struct zpci_dev *zdev)
{
- u64 req = ZPCI_CREATE_REQ(zdev->fh, dmaas, fn);
+ u64 req = ZPCI_CREATE_REQ(zdev->fh, 0, ZPCI_MOD_FC_DEREG_INT);
struct zpci_fib fib = {0};
+ u8 cc, status;
- fib.pba = args->base;
- fib.pal = args->limit;
- fib.iota = args->iota;
- fib.fmb_addr = args->fmb_addr;
+ cc = zpci_mod_fc(req, &fib, &status);
+ if (cc == 3 || (cc == 1 && status == 24))
+ /* Function already gone or IRQs already deregistered. */
+ cc = 0;
- return zpci_mod_fc(req, &fib);
+ return cc ? -EIO : 0;
}
/* Modify PCI: Register I/O address translation parameters */
int zpci_register_ioat(struct zpci_dev *zdev, u8 dmaas,
u64 base, u64 limit, u64 iota)
{
- struct mod_pci_args args = { base, limit, iota, 0 };
+ u64 req = ZPCI_CREATE_REQ(zdev->fh, dmaas, ZPCI_MOD_FC_REG_IOAT);
+ struct zpci_fib fib = {0};
+ u8 status;
WARN_ON_ONCE(iota & 0x3fff);
- args.iota |= ZPCI_IOTA_RTTO_FLAG;
- return mod_pci(zdev, ZPCI_MOD_FC_REG_IOAT, dmaas, &args);
+ fib.pba = base;
+ fib.pal = limit;
+ fib.iota = iota | ZPCI_IOTA_RTTO_FLAG;
+ return zpci_mod_fc(req, &fib, &status) ? -EIO : 0;
}
/* Modify PCI: Unregister I/O address translation parameters */
int zpci_unregister_ioat(struct zpci_dev *zdev, u8 dmaas)
{
- struct mod_pci_args args = { 0, 0, 0, 0 };
-
- return mod_pci(zdev, ZPCI_MOD_FC_DEREG_IOAT, dmaas, &args);
-}
-
-/* Modify PCI: Unregister adapter interruptions */
-static int zpci_clear_airq(struct zpci_dev *zdev)
-{
- struct mod_pci_args args = { 0, 0, 0, 0 };
+ u64 req = ZPCI_CREATE_REQ(zdev->fh, dmaas, ZPCI_MOD_FC_DEREG_IOAT);
+ struct zpci_fib fib = {0};
+ u8 cc, status;
- return mod_pci(zdev, ZPCI_MOD_FC_DEREG_INT, 0, &args);
+ cc = zpci_mod_fc(req, &fib, &status);
+ if (cc == 3) /* Function already gone. */
+ cc = 0;
+ return cc ? -EIO : 0;
}
/* Modify PCI: Set PCI function measurement parameters */
int zpci_fmb_enable_device(struct zpci_dev *zdev)
{
- struct mod_pci_args args = { 0, 0, 0, 0 };
+ u64 req = ZPCI_CREATE_REQ(zdev->fh, 0, ZPCI_MOD_FC_SET_MEASURE);
+ struct zpci_fib fib = {0};
+ u8 cc, status;
if (zdev->fmb || sizeof(*zdev->fmb) < zdev->fmb_length)
return -EINVAL;
@@ -185,25 +203,35 @@ int zpci_fmb_enable_device(struct zpci_dev *zdev)
atomic64_set(&zdev->mapped_pages, 0);
atomic64_set(&zdev->unmapped_pages, 0);
- args.fmb_addr = virt_to_phys(zdev->fmb);
- return mod_pci(zdev, ZPCI_MOD_FC_SET_MEASURE, 0, &args);
+ fib.fmb_addr = virt_to_phys(zdev->fmb);
+ cc = zpci_mod_fc(req, &fib, &status);
+ if (cc) {
+ kmem_cache_free(zdev_fmb_cache, zdev->fmb);
+ zdev->fmb = NULL;
+ }
+ return cc ? -EIO : 0;
}
/* Modify PCI: Disable PCI function measurement */
int zpci_fmb_disable_device(struct zpci_dev *zdev)
{
- struct mod_pci_args args = { 0, 0, 0, 0 };
- int rc;
+ u64 req = ZPCI_CREATE_REQ(zdev->fh, 0, ZPCI_MOD_FC_SET_MEASURE);
+ struct zpci_fib fib = {0};
+ u8 cc, status;
if (!zdev->fmb)
return -EINVAL;
/* Function measurement is disabled if fmb address is zero */
- rc = mod_pci(zdev, ZPCI_MOD_FC_SET_MEASURE, 0, &args);
+ cc = zpci_mod_fc(req, &fib, &status);
+ if (cc == 3) /* Function already gone. */
+ cc = 0;
- kmem_cache_free(zdev_fmb_cache, zdev->fmb);
- zdev->fmb = NULL;
- return rc;
+ if (!cc) {
+ kmem_cache_free(zdev_fmb_cache, zdev->fmb);
+ zdev->fmb = NULL;
+ }
+ return cc ? -EIO : 0;
}
static int zpci_cfg_load(struct zpci_dev *zdev, int offset, u32 *val, u8 len)
@@ -234,10 +262,6 @@ static int zpci_cfg_store(struct zpci_dev *zdev, int offset, u32 val, u8 len)
return rc;
}
-void pcibios_fixup_bus(struct pci_bus *bus)
-{
-}
-
resource_size_t pcibios_align_resource(void *data, const struct resource *res,
resource_size_t size,
resource_size_t align)
@@ -372,22 +396,21 @@ int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
struct msi_msg msg;
int rc, irq;
+ zdev->aisb = -1UL;
if (type == PCI_CAP_ID_MSI && nvec > 1)
return 1;
msi_vecs = min_t(unsigned int, nvec, zdev->max_msi);
/* Allocate adapter summary indicator bit */
- rc = -EIO;
aisb = airq_iv_alloc_bit(zpci_aisb_iv);
if (aisb == -1UL)
- goto out;
+ return -EIO;
zdev->aisb = aisb;
/* Create adapter interrupt vector */
- rc = -ENOMEM;
zdev->aibv = airq_iv_create(msi_vecs, AIRQ_IV_DATA | AIRQ_IV_BITLOCK);
if (!zdev->aibv)
- goto out_si;
+ return -ENOMEM;
/* Wire up shortcut pointer */
zpci_aibv[aisb] = zdev->aibv;
@@ -398,10 +421,10 @@ int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
rc = -EIO;
irq = irq_alloc_desc(0); /* Alloc irq on node 0 */
if (irq < 0)
- goto out_msi;
+ return -ENOMEM;
rc = irq_set_msi_desc(irq, msi);
if (rc)
- goto out_msi;
+ return rc;
irq_set_chip_and_handler(irq, &zpci_irq_chip,
handle_simple_irq);
msg.data = hwirq;
@@ -415,27 +438,9 @@ int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
/* Enable adapter interrupts */
rc = zpci_set_airq(zdev);
if (rc)
- goto out_msi;
+ return rc;
return (msi_vecs == nvec) ? 0 : msi_vecs;
-
-out_msi:
- for_each_pci_msi_entry(msi, pdev) {
- if (hwirq-- == 0)
- break;
- irq_set_msi_desc(msi->irq, NULL);
- irq_free_desc(msi->irq);
- msi->msg.address_lo = 0;
- msi->msg.address_hi = 0;
- msi->msg.data = 0;
- msi->irq = 0;
- }
- zpci_aibv[aisb] = NULL;
- airq_iv_release(zdev->aibv);
-out_si:
- airq_iv_free_bit(zpci_aisb_iv, aisb);
-out:
- return rc;
}
void arch_teardown_msi_irqs(struct pci_dev *pdev)
@@ -451,6 +456,8 @@ void arch_teardown_msi_irqs(struct pci_dev *pdev)
/* Release MSI interrupts */
for_each_pci_msi_entry(msi, pdev) {
+ if (!msi->irq)
+ continue;
if (msi->msi_attrib.is_msix)
__pci_msix_desc_mask_irq(msi, 1);
else
@@ -463,9 +470,15 @@ void arch_teardown_msi_irqs(struct pci_dev *pdev)
msi->irq = 0;
}
- zpci_aibv[zdev->aisb] = NULL;
- airq_iv_release(zdev->aibv);
- airq_iv_free_bit(zpci_aisb_iv, zdev->aisb);
+ if (zdev->aisb != -1UL) {
+ zpci_aibv[zdev->aisb] = NULL;
+ airq_iv_free_bit(zpci_aisb_iv, zdev->aisb);
+ zdev->aisb = -1UL;
+ }
+ if (zdev->aibv) {
+ airq_iv_release(zdev->aibv);
+ zdev->aibv = NULL;
+ }
}
static void zpci_map_resources(struct pci_dev *pdev)
@@ -719,6 +732,16 @@ static int zpci_alloc_domain(struct zpci_dev *zdev)
{
if (zpci_unique_uid) {
zdev->domain = (u16) zdev->uid;
+ if (zdev->domain >= ZPCI_NR_DEVICES)
+ return 0;
+
+ spin_lock(&zpci_domain_lock);
+ if (test_bit(zdev->domain, zpci_domain)) {
+ spin_unlock(&zpci_domain_lock);
+ return -EEXIST;
+ }
+ set_bit(zdev->domain, zpci_domain);
+ spin_unlock(&zpci_domain_lock);
return 0;
}
@@ -735,7 +758,7 @@ static int zpci_alloc_domain(struct zpci_dev *zdev)
static void zpci_free_domain(struct zpci_dev *zdev)
{
- if (zpci_unique_uid)
+ if (zdev->domain >= ZPCI_NR_DEVICES)
return;
spin_lock(&zpci_domain_lock);
@@ -749,12 +772,14 @@ void pcibios_remove_bus(struct pci_bus *bus)
zpci_exit_slot(zdev);
zpci_cleanup_bus_resources(zdev);
+ zpci_destroy_iommu(zdev);
zpci_free_domain(zdev);
spin_lock(&zpci_list_lock);
list_del(&zdev->entry);
spin_unlock(&zpci_list_lock);
+ zpci_dbg(3, "rem fid:%x\n", zdev->fid);
kfree(zdev);
}
@@ -820,11 +845,15 @@ int zpci_create_device(struct zpci_dev *zdev)
if (rc)
goto out;
+ rc = zpci_init_iommu(zdev);
+ if (rc)
+ goto out_free;
+
mutex_init(&zdev->lock);
if (zdev->state == ZPCI_FN_STATE_CONFIGURED) {
rc = zpci_enable_device(zdev);
if (rc)
- goto out_free;
+ goto out_destroy_iommu;
}
rc = zpci_scan_bus(zdev);
if (rc)
@@ -841,21 +870,22 @@ int zpci_create_device(struct zpci_dev *zdev)
out_disable:
if (zdev->state == ZPCI_FN_STATE_ONLINE)
zpci_disable_device(zdev);
+out_destroy_iommu:
+ zpci_destroy_iommu(zdev);
out_free:
zpci_free_domain(zdev);
out:
return rc;
}
-void zpci_stop_device(struct zpci_dev *zdev)
+void zpci_remove_device(struct zpci_dev *zdev)
{
- zpci_dma_exit_device(zdev);
- /*
- * Note: SCLP disables fh via set-pci-fn so don't
- * do that here.
- */
+ if (!zdev->bus)
+ return;
+
+ pci_stop_root_bus(zdev->bus);
+ pci_remove_root_bus(zdev->bus);
}
-EXPORT_SYMBOL_GPL(zpci_stop_device);
int zpci_report_error(struct pci_dev *pdev,
struct zpci_report_error_header *report)
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index 1c3332ac1957..0ae3936e266f 100644
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -24,6 +24,14 @@
bool zpci_unique_uid;
+static void update_uid_checking(bool new)
+{
+ if (zpci_unique_uid != new)
+ zpci_dbg(1, "uid checking:%d\n", new);
+
+ zpci_unique_uid = new;
+}
+
static inline void zpci_err_clp(unsigned int rsp, int rc)
{
struct {
@@ -193,12 +201,12 @@ out:
int clp_add_pci_device(u32 fid, u32 fh, int configured)
{
struct zpci_dev *zdev;
- int rc;
+ int rc = -ENOMEM;
zpci_dbg(3, "add fid:%x, fh:%x, c:%d\n", fid, fh, configured);
zdev = kzalloc(sizeof(*zdev), GFP_KERNEL);
if (!zdev)
- return -ENOMEM;
+ goto error;
zdev->fh = fh;
zdev->fid = fid;
@@ -219,6 +227,7 @@ int clp_add_pci_device(u32 fid, u32 fh, int configured)
return 0;
error:
+ zpci_dbg(0, "add fid:%x, rc:%d\n", fid, rc);
kfree(zdev);
return rc;
}
@@ -295,8 +304,8 @@ int clp_disable_fh(struct zpci_dev *zdev)
return rc;
}
-static int clp_list_pci(struct clp_req_rsp_list_pci *rrb,
- void (*cb)(struct clp_fh_list_entry *entry))
+static int clp_list_pci(struct clp_req_rsp_list_pci *rrb, void *data,
+ void (*cb)(struct clp_fh_list_entry *, void *))
{
u64 resume_token = 0;
int entries, i, rc;
@@ -318,7 +327,7 @@ static int clp_list_pci(struct clp_req_rsp_list_pci *rrb,
goto out;
}
- zpci_unique_uid = rrb->response.uid_checking;
+ update_uid_checking(rrb->response.uid_checking);
WARN_ON_ONCE(rrb->response.entry_size !=
sizeof(struct clp_fh_list_entry));
@@ -327,21 +336,13 @@ static int clp_list_pci(struct clp_req_rsp_list_pci *rrb,
resume_token = rrb->response.resume_token;
for (i = 0; i < entries; i++)
- cb(&rrb->response.fh_list[i]);
+ cb(&rrb->response.fh_list[i], data);
} while (resume_token);
out:
return rc;
}
-static void __clp_add(struct clp_fh_list_entry *entry)
-{
- if (!entry->vendor_id)
- return;
-
- clp_add_pci_device(entry->fid, entry->fh, entry->config_state);
-}
-
-static void __clp_rescan(struct clp_fh_list_entry *entry)
+static void __clp_add(struct clp_fh_list_entry *entry, void *data)
{
struct zpci_dev *zdev;
@@ -349,22 +350,11 @@ static void __clp_rescan(struct clp_fh_list_entry *entry)
return;
zdev = get_zdev_by_fid(entry->fid);
- if (!zdev) {
+ if (!zdev)
clp_add_pci_device(entry->fid, entry->fh, entry->config_state);
- return;
- }
-
- if (!entry->config_state) {
- /*
- * The handle is already disabled, that means no iota/irq freeing via
- * the firmware interfaces anymore. Need to free resources manually
- * (DMA memory, debug, sysfs)...
- */
- zpci_stop_device(zdev);
- }
}
-static void __clp_update(struct clp_fh_list_entry *entry)
+static void __clp_update(struct clp_fh_list_entry *entry, void *data)
{
struct zpci_dev *zdev;
@@ -387,7 +377,7 @@ int clp_scan_pci_devices(void)
if (!rrb)
return -ENOMEM;
- rc = clp_list_pci(rrb, __clp_add);
+ rc = clp_list_pci(rrb, NULL, __clp_add);
clp_free_block(rrb);
return rc;
@@ -398,11 +388,13 @@ int clp_rescan_pci_devices(void)
struct clp_req_rsp_list_pci *rrb;
int rc;
+ zpci_remove_reserved_devices();
+
rrb = clp_alloc_block(GFP_KERNEL);
if (!rrb)
return -ENOMEM;
- rc = clp_list_pci(rrb, __clp_rescan);
+ rc = clp_list_pci(rrb, NULL, __clp_add);
clp_free_block(rrb);
return rc;
@@ -417,7 +409,40 @@ int clp_rescan_pci_devices_simple(void)
if (!rrb)
return -ENOMEM;
- rc = clp_list_pci(rrb, __clp_update);
+ rc = clp_list_pci(rrb, NULL, __clp_update);
+
+ clp_free_block(rrb);
+ return rc;
+}
+
+struct clp_state_data {
+ u32 fid;
+ enum zpci_state state;
+};
+
+static void __clp_get_state(struct clp_fh_list_entry *entry, void *data)
+{
+ struct clp_state_data *sd = data;
+
+ if (entry->fid != sd->fid)
+ return;
+
+ sd->state = entry->config_state;
+}
+
+int clp_get_state(u32 fid, enum zpci_state *state)
+{
+ struct clp_req_rsp_list_pci *rrb;
+ struct clp_state_data sd = {fid, ZPCI_FN_STATE_RESERVED};
+ int rc;
+
+ rrb = clp_alloc_block(GFP_KERNEL);
+ if (!rrb)
+ return -ENOMEM;
+
+ rc = clp_list_pci(rrb, &sd, __clp_get_state);
+ if (!rc)
+ *state = sd.state;
clp_free_block(rrb);
return rc;
diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c
index 9081a57fa340..0d300ee00f4e 100644
--- a/arch/s390/pci/pci_dma.c
+++ b/arch/s390/pci/pci_dma.c
@@ -14,6 +14,8 @@
#include <linux/pci.h>
#include <asm/pci_dma.h>
+#define S390_MAPPING_ERROR (~(dma_addr_t) 0x0)
+
static struct kmem_cache *dma_region_table_cache;
static struct kmem_cache *dma_page_table_cache;
static int s390_iommu_strict;
@@ -281,7 +283,7 @@ static dma_addr_t dma_alloc_address(struct device *dev, int size)
out_error:
spin_unlock_irqrestore(&zdev->iommu_bitmap_lock, flags);
- return DMA_ERROR_CODE;
+ return S390_MAPPING_ERROR;
}
static void dma_free_address(struct device *dev, dma_addr_t dma_addr, int size)
@@ -329,7 +331,7 @@ static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page,
/* This rounds up number of pages based on size and offset */
nr_pages = iommu_num_pages(pa, size, PAGE_SIZE);
dma_addr = dma_alloc_address(dev, nr_pages);
- if (dma_addr == DMA_ERROR_CODE) {
+ if (dma_addr == S390_MAPPING_ERROR) {
ret = -ENOSPC;
goto out_err;
}
@@ -352,7 +354,7 @@ out_free:
out_err:
zpci_err("map error:\n");
zpci_err_dma(ret, pa);
- return DMA_ERROR_CODE;
+ return S390_MAPPING_ERROR;
}
static void s390_dma_unmap_pages(struct device *dev, dma_addr_t dma_addr,
@@ -429,7 +431,7 @@ static int __s390_dma_map_sg(struct device *dev, struct scatterlist *sg,
int ret;
dma_addr_base = dma_alloc_address(dev, nr_pages);
- if (dma_addr_base == DMA_ERROR_CODE)
+ if (dma_addr_base == S390_MAPPING_ERROR)
return -ENOMEM;
dma_addr = dma_addr_base;
@@ -476,7 +478,7 @@ static int s390_dma_map_sg(struct device *dev, struct scatterlist *sg,
for (i = 1; i < nr_elements; i++) {
s = sg_next(s);
- s->dma_address = DMA_ERROR_CODE;
+ s->dma_address = S390_MAPPING_ERROR;
s->dma_length = 0;
if (s->offset || (size & ~PAGE_MASK) ||
@@ -525,6 +527,11 @@ static void s390_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
s->dma_length = 0;
}
}
+
+static int s390_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return dma_addr == S390_MAPPING_ERROR;
+}
int zpci_dma_init_device(struct zpci_dev *zdev)
{
@@ -601,7 +608,9 @@ void zpci_dma_exit_device(struct zpci_dev *zdev)
*/
WARN_ON(zdev->s390_domain);
- zpci_unregister_ioat(zdev, 0);
+ if (zpci_unregister_ioat(zdev, 0))
+ return;
+
dma_cleanup_tables(zdev->dma_table);
zdev->dma_table = NULL;
vfree(zdev->iommu_bitmap);
@@ -657,6 +666,7 @@ const struct dma_map_ops s390_pci_dma_ops = {
.unmap_sg = s390_dma_unmap_sg,
.map_page = s390_dma_map_pages,
.unmap_page = s390_dma_unmap_pages,
+ .mapping_error = s390_mapping_error,
/* if we support direct DMA this must be conditional */
.is_phys = 0,
/* dma_supported is unconditionally true without a callback */
diff --git a/arch/s390/pci/pci_event.c b/arch/s390/pci/pci_event.c
index c2b27ad8e94d..0bbc04af4418 100644
--- a/arch/s390/pci/pci_event.c
+++ b/arch/s390/pci/pci_event.c
@@ -74,6 +74,7 @@ static void __zpci_event_availability(struct zpci_ccdf_avail *ccdf)
{
struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid);
struct pci_dev *pdev = NULL;
+ enum zpci_state state;
int ret;
if (zdev)
@@ -108,6 +109,8 @@ static void __zpci_event_availability(struct zpci_ccdf_avail *ccdf)
clp_add_pci_device(ccdf->fid, ccdf->fh, 0);
break;
case 0x0303: /* Deconfiguration requested */
+ if (!zdev)
+ break;
if (pdev)
pci_stop_and_remove_bus_device_locked(pdev);
@@ -121,7 +124,9 @@ static void __zpci_event_availability(struct zpci_ccdf_avail *ccdf)
zdev->state = ZPCI_FN_STATE_STANDBY;
break;
- case 0x0304: /* Configured -> Standby */
+ case 0x0304: /* Configured -> Standby|Reserved */
+ if (!zdev)
+ break;
if (pdev) {
/* Give the driver a hint that the function is
* already unusable. */
@@ -132,6 +137,10 @@ static void __zpci_event_availability(struct zpci_ccdf_avail *ccdf)
zdev->fh = ccdf->fh;
zpci_disable_device(zdev);
zdev->state = ZPCI_FN_STATE_STANDBY;
+ if (!clp_get_state(ccdf->fid, &state) &&
+ state == ZPCI_FN_STATE_RESERVED) {
+ zpci_remove_device(zdev);
+ }
break;
case 0x0306: /* 0x308 or 0x302 for multiple devices */
clp_rescan_pci_devices();
@@ -139,8 +148,7 @@ static void __zpci_event_availability(struct zpci_ccdf_avail *ccdf)
case 0x0308: /* Standby -> Reserved */
if (!zdev)
break;
- pci_stop_root_bus(zdev->bus);
- pci_remove_root_bus(zdev->bus);
+ zpci_remove_device(zdev);
break;
default:
break;
diff --git a/arch/s390/pci/pci_insn.c b/arch/s390/pci/pci_insn.c
index fa8d7d4b9751..ea34086c8674 100644
--- a/arch/s390/pci/pci_insn.c
+++ b/arch/s390/pci/pci_insn.c
@@ -40,20 +40,20 @@ static inline u8 __mpcifc(u64 req, struct zpci_fib *fib, u8 *status)
return cc;
}
-int zpci_mod_fc(u64 req, struct zpci_fib *fib)
+u8 zpci_mod_fc(u64 req, struct zpci_fib *fib, u8 *status)
{
- u8 cc, status;
+ u8 cc;
do {
- cc = __mpcifc(req, fib, &status);
+ cc = __mpcifc(req, fib, status);
if (cc == 2)
msleep(ZPCI_INSN_BUSY_DELAY);
} while (cc == 2);
if (cc)
- zpci_err_insn(cc, status, req, 0);
+ zpci_err_insn(cc, *status, req, 0);
- return (cc) ? -EIO : 0;
+ return cc;
}
/* Refresh PCI Translations */
diff --git a/arch/s390/tools/gen_facilities.c b/arch/s390/tools/gen_facilities.c
index be63fbd699fd..70dd8f17d054 100644
--- a/arch/s390/tools/gen_facilities.c
+++ b/arch/s390/tools/gen_facilities.c
@@ -34,8 +34,6 @@ static struct facility_def facility_defs[] = {
18, /* long displacement facility */
#endif
#ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES
- 7, /* stfle */
- 17, /* message security assist */
21, /* extended-immediate facility */
25, /* store clock fast */
#endif
@@ -43,7 +41,7 @@ static struct facility_def facility_defs[] = {
27, /* mvcos */
32, /* compare and swap and store */
33, /* compare and swap and store 2 */
- 34, /* general extension facility */
+ 34, /* general instructions extension */
35, /* execute extensions */
#endif
#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
@@ -56,6 +54,9 @@ static struct facility_def facility_defs[] = {
#ifdef CONFIG_HAVE_MARCH_Z13_FEATURES
53, /* load-and-zero-rightmost-byte, etc. */
#endif
+#ifdef CONFIG_HAVE_MARCH_Z14_FEATURES
+ 58, /* miscellaneous-instruction-extension 2 */
+#endif
-1 /* END */
}
},
@@ -82,6 +83,7 @@ static struct facility_def facility_defs[] = {
78, /* enhanced-DAT 2 */
130, /* instruction-execution-protection */
131, /* enhanced-SOP 2 and side-effect */
+ 139, /* multiple epoch facility */
146, /* msa extension 8 */
-1 /* END */
}
diff --git a/arch/score/include/asm/uaccess.h b/arch/score/include/asm/uaccess.h
index 916e5dbf0bfd..0ef220474d9b 100644
--- a/arch/score/include/asm/uaccess.h
+++ b/arch/score/include/asm/uaccess.h
@@ -359,12 +359,6 @@ static inline int strncpy_from_user(char *dst, const char *src, long len)
return -EFAULT;
}
-extern int __strlen_user(const char *src);
-static inline long strlen_user(const char __user *src)
-{
- return __strlen_user(src);
-}
-
extern int __strnlen_user(const char *str, long len);
static inline long strnlen_user(const char __user *str, long len)
{
diff --git a/arch/score/include/uapi/asm/Kbuild b/arch/score/include/uapi/asm/Kbuild
index b15bf6bc0e94..c94ee54210bc 100644
--- a/arch/score/include/uapi/asm/Kbuild
+++ b/arch/score/include/uapi/asm/Kbuild
@@ -1,2 +1,4 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+
+generic-y += siginfo.h
diff --git a/arch/score/include/uapi/asm/siginfo.h b/arch/score/include/uapi/asm/siginfo.h
deleted file mode 100644
index 87ca35607a28..000000000000
--- a/arch/score/include/uapi/asm/siginfo.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_SCORE_SIGINFO_H
-#define _ASM_SCORE_SIGINFO_H
-
-#include <asm-generic/siginfo.h>
-
-#endif /* _ASM_SCORE_SIGINFO_H */
diff --git a/arch/score/lib/string.S b/arch/score/lib/string.S
index 16efa3ad037f..e0c0318c9010 100644
--- a/arch/score/lib/string.S
+++ b/arch/score/lib/string.S
@@ -104,34 +104,6 @@ ENTRY(__strnlen_user)
.previous
.align 2
-ENTRY(__strlen_user)
-0: lb r6, [r4]
- mv r7, r4
- extsb r6, r6
- cmpi.c r6, 0
- mv r4, r6
- beq .L27
-.L28:
-1: lb r6, [r7, 1]+
- addi r6, 1
- cmpi.c r6, 0
- bne .L28
-.L27:
- br r3
- .section .fixup, "ax"
- ldi r4, 0x0
- br r3
-99:
- ldi r4, 0
- br r3
- .previous
- .section __ex_table, "a"
- .align 2
- .word 0b ,99b
- .word 1b ,99b
- .previous
-
- .align 2
ENTRY(__copy_tofrom_user)
cmpi.c r6, 0
mv r10,r6
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index ee086958b2b2..640a85925060 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -2,6 +2,7 @@ config SUPERH
def_bool y
select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
select ARCH_MIGHT_HAVE_PC_PARPORT
+ select ARCH_NO_COHERENT_DMA_MMAP if !MMU
select HAVE_PATA_PLATFORM
select CLKDEV_LOOKUP
select HAVE_IDE if HAS_IOPORT_MAP
diff --git a/arch/sh/boards/Kconfig b/arch/sh/boards/Kconfig
index 4e21949593cf..3554fcaa023b 100644
--- a/arch/sh/boards/Kconfig
+++ b/arch/sh/boards/Kconfig
@@ -10,7 +10,7 @@ config SH_DEVICE_TREE
bool "Board Described by Device Tree"
select OF
select OF_EARLY_FLATTREE
- select CLKSRC_OF
+ select TIMER_OF
select COMMON_CLK
select GENERIC_CALIBRATE_DELAY
help
diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c
index 5de60a77eaa1..0bcbe58b11e9 100644
--- a/arch/sh/boards/mach-migor/setup.c
+++ b/arch/sh/boards/mach-migor/setup.c
@@ -15,7 +15,7 @@
#include <linux/mmc/host.h>
#include <linux/mtd/physmap.h>
#include <linux/mfd/tmio.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include <linux/i2c.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
diff --git a/arch/sh/boards/of-generic.c b/arch/sh/boards/of-generic.c
index 1fb6d5714bae..4feb7c86f4ac 100644
--- a/arch/sh/boards/of-generic.c
+++ b/arch/sh/boards/of-generic.c
@@ -119,7 +119,7 @@ static void __init sh_of_mem_reserve(void)
static void __init sh_of_time_init(void)
{
pr_info("SH generic board support: scanning for clocksource devices\n");
- clocksource_probe();
+ timer_probe();
}
static void __init sh_of_setup(char **cmdline_p)
diff --git a/arch/sh/configs/ap325rxa_defconfig b/arch/sh/configs/ap325rxa_defconfig
index e5335123b5e9..72b72e50a92e 100644
--- a/arch/sh/configs/ap325rxa_defconfig
+++ b/arch/sh/configs/ap325rxa_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -28,14 +27,10 @@ CONFIG_IP_PNP_DHCP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -51,8 +46,6 @@ CONFIG_NETDEVICES=y
CONFIG_SMSC_PHY=y
CONFIG_NET_ETHERNET=y
CONFIG_SMSC911X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -82,7 +75,6 @@ CONFIG_FB=y
CONFIG_FB_SH_MOBILE_LCDC=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_MMC=y
CONFIG_MMC_SPI=y
@@ -110,8 +102,6 @@ CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_932=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_MUST_CHECK is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_CRYPTO=y
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/apsh4a3a_defconfig b/arch/sh/configs/apsh4a3a_defconfig
index 6cb327977d13..4710df43a5b5 100644
--- a/arch/sh/configs/apsh4a3a_defconfig
+++ b/arch/sh/configs/apsh4a3a_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_IKCONFIG=y
@@ -28,15 +27,11 @@ CONFIG_INET=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -46,8 +41,6 @@ CONFIG_BLK_DEV_RAM_SIZE=16384
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SMSC911X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_WLAN is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
@@ -66,7 +59,6 @@ CONFIG_FONTS=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_LOGO=y
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
@@ -96,7 +88,6 @@ CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_PREEMPT is not set
# CONFIG_DEBUG_BUGVERBOSE is not set
CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_FTRACE is not set
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/sh/configs/apsh4ad0a_defconfig b/arch/sh/configs/apsh4ad0a_defconfig
index fe45d2c9b151..825c641726c4 100644
--- a/arch/sh/configs/apsh4ad0a_defconfig
+++ b/arch/sh/configs/apsh4ad0a_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -53,7 +52,6 @@ CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_NET_KEY=y
CONFIG_INET=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
@@ -70,8 +68,6 @@ CONFIG_NETDEVICES=y
CONFIG_MDIO_BITBANG=y
CONFIG_NET_ETHERNET=y
CONFIG_SMSC911X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_WLAN is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_KEYBOARD is not set
@@ -83,7 +79,6 @@ CONFIG_SERIAL_SH_SCI_CONSOLE=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=y
CONFIG_FB=y
CONFIG_FB_SH7785FB=y
CONFIG_FRAMEBUFFER_CONSOLE=y
@@ -124,6 +119,5 @@ CONFIG_DEBUG_SHIRQ=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_VM=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_DWARF_UNWINDER=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/cayman_defconfig b/arch/sh/configs/cayman_defconfig
index 67e150631ea5..5a90e24aa8a6 100644
--- a/arch/sh/configs/cayman_defconfig
+++ b/arch/sh/configs/cayman_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -19,7 +18,6 @@ CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_PNP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_FW_LOADER is not set
@@ -38,7 +36,6 @@ CONFIG_NET_ETHERNET=y
CONFIG_HW_RANDOM=y
CONFIG_I2C=m
CONFIG_WATCHDOG=y
-CONFIG_VIDEO_OUTPUT_CONTROL=y
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_MODE_HELPERS=y
@@ -67,5 +64,4 @@ CONFIG_DEBUG_KERNEL=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_SCHEDSTATS=y
CONFIG_FRAME_POINTER=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/dreamcast_defconfig b/arch/sh/configs/dreamcast_defconfig
index ec243ca29529..3f08dc54480b 100644
--- a/arch/sh/configs/dreamcast_defconfig
+++ b/arch/sh/configs/dreamcast_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_LOG_BUF_SHIFT=14
@@ -32,7 +31,6 @@ CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_STANDALONE is not set
@@ -43,8 +41,6 @@ CONFIG_NET_ETHERNET=y
CONFIG_NET_PCI=y
CONFIG_8139TOO=y
# CONFIG_8139TOO_PIO is not set
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_KEYBOARD_ATKBD is not set
CONFIG_KEYBOARD_MAPLE=y
# CONFIG_MOUSE_PS2 is not set
@@ -56,7 +52,6 @@ CONFIG_HW_RANDOM=y
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
CONFIG_SH_WDT=y
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_PVR2=y
@@ -74,5 +69,4 @@ CONFIG_LOGO=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_HUGETLBFS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/ecovec24-romimage_defconfig b/arch/sh/configs/ecovec24-romimage_defconfig
index 5fcb17bff24a..0c5dfccbfe37 100644
--- a/arch/sh/configs/ecovec24-romimage_defconfig
+++ b/arch/sh/configs/ecovec24-romimage_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -26,19 +25,15 @@ CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SH_ETH=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -51,7 +46,6 @@ CONFIG_I2C=y
CONFIG_I2C_SH_MOBILE=y
CONFIG_GPIO_SYSFS=y
# CONFIG_HWMON is not set
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=y
CONFIG_USB_R8A66597_HCD=y
CONFIG_USB_STORAGE=y
@@ -64,4 +58,3 @@ CONFIG_TMPFS=y
# CONFIG_NETWORK_FILESYSTEMS is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
diff --git a/arch/sh/configs/ecovec24_defconfig b/arch/sh/configs/ecovec24_defconfig
index 0b364e3b0ff8..3568310c2c2f 100644
--- a/arch/sh/configs/ecovec24_defconfig
+++ b/arch/sh/configs/ecovec24_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -29,16 +28,12 @@ CONFIG_IP_PNP_DHCP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_IRDA=y
CONFIG_SH_SIR=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -53,8 +48,6 @@ CONFIG_NETDEVICES=y
CONFIG_SMSC_PHY=y
CONFIG_NET_ETHERNET=y
CONFIG_SH_ETH=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_KEYBOARD_ATKBD is not set
@@ -140,8 +133,6 @@ CONFIG_NLS_CODEPAGE_932=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_CRYPTO=y
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/edosk7705_defconfig b/arch/sh/configs/edosk7705_defconfig
index 41fa3a7eed96..db756e099052 100644
--- a/arch/sh/configs/edosk7705_defconfig
+++ b/arch/sh/configs/edosk7705_defconfig
@@ -20,7 +20,6 @@ CONFIG_CPU_SUBTYPE_SH7705=y
CONFIG_SH_EDOSK7705=y
CONFIG_SH_PCLK_FREQ=31250000
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
-# CONFIG_MISC_DEVICES is not set
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
@@ -35,5 +34,4 @@ CONFIG_SH_PCLK_FREQ=31250000
# CONFIG_SYSFS is not set
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRC32 is not set
diff --git a/arch/sh/configs/edosk7760_defconfig b/arch/sh/configs/edosk7760_defconfig
index e1077a041ac3..aab4ff1e247c 100644
--- a/arch/sh/configs/edosk7760_defconfig
+++ b/arch/sh/configs/edosk7760_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_LOCALVERSION="_edosk7760"
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -31,7 +30,6 @@ CONFIG_IP_PNP_BOOTP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_FW_LOADER is not set
@@ -39,10 +37,7 @@ CONFIG_DEBUG_DRIVER=y
CONFIG_DEBUG_DEVRES=y
CONFIG_MTD=y
CONFIG_MTD_DEBUG=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
@@ -62,12 +57,9 @@ CONFIG_MTD_ABSENT=y
CONFIG_MTD_PHYSMAP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=26000
-# CONFIG_MISC_DEVICES is not set
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SMC91X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -92,7 +84,6 @@ CONFIG_SND=y
# CONFIG_SND_VERBOSE_PROCFS is not set
CONFIG_SND_VERBOSE_PRINTK=y
CONFIG_SND_SOC=y
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
@@ -119,8 +110,6 @@ CONFIG_DETECT_HUNG_TASK=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_TIMER_STATS=y
CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_CRYPTO=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
diff --git a/arch/sh/configs/espt_defconfig b/arch/sh/configs/espt_defconfig
index 67cb1094a033..2985fe7c6d50 100644
--- a/arch/sh/configs/espt_defconfig
+++ b/arch/sh/configs/espt_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
@@ -26,13 +25,10 @@ CONFIG_INET=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
@@ -43,14 +39,11 @@ CONFIG_MTD_CFI_GEOMETRY=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_COMPLEX_MAPPINGS=y
CONFIG_MTD_PHYSMAP=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SH_ETH=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -65,7 +58,6 @@ CONFIG_FB_FOREIGN_ENDIAN=y
CONFIG_FB_SH7760=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=y
CONFIG_USB_MON=y
CONFIG_USB_OHCI_HCD=y
@@ -73,7 +65,6 @@ CONFIG_USB_STORAGE=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
-CONFIG_AUTOFS_FS=y
CONFIG_AUTOFS4_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
@@ -123,6 +114,5 @@ CONFIG_NLS_UTF8=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRC_T10DIF=y
diff --git a/arch/sh/configs/hp6xx_defconfig b/arch/sh/configs/hp6xx_defconfig
index 496edcdf95a3..4dcf7f552582 100644
--- a/arch/sh/configs/hp6xx_defconfig
+++ b/arch/sh/configs/hp6xx_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
@@ -37,7 +36,6 @@ CONFIG_SERIAL_SH_SCI_NR_UARTS=3
CONFIG_SERIAL_SH_SCI_CONSOLE=y
CONFIG_LEGACY_PTY_COUNT=64
# CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=y
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
CONFIG_FB_HIT=y
@@ -46,7 +44,6 @@ CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FONTS=y
CONFIG_FONT_PEARL_8x8=y
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_SH=y
@@ -55,7 +52,6 @@ CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_PROC_KCORE=y
CONFIG_NLS_CODEPAGE_850=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_CRYPTO=y
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_ECB=y
diff --git a/arch/sh/configs/kfr2r09-romimage_defconfig b/arch/sh/configs/kfr2r09-romimage_defconfig
index 029a506ca325..9cc37f29e3b4 100644
--- a/arch/sh/configs/kfr2r09-romimage_defconfig
+++ b/arch/sh/configs/kfr2r09-romimage_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -26,12 +25,10 @@ CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-# CONFIG_MISC_DEVICES is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -44,7 +41,6 @@ CONFIG_I2C=y
CONFIG_I2C_SH_MOBILE=y
CONFIG_GPIO_SYSFS=y
# CONFIG_HWMON is not set
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB_GADGET=y
CONFIG_USB_CDC_COMPOSITE=y
# CONFIG_DNOTIFY is not set
@@ -55,5 +51,4 @@ CONFIG_TMPFS=y
# CONFIG_NETWORK_FILESYSTEMS is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRC32 is not set
diff --git a/arch/sh/configs/kfr2r09_defconfig b/arch/sh/configs/kfr2r09_defconfig
index fac13ded07b2..46693d033644 100644
--- a/arch/sh/configs/kfr2r09_defconfig
+++ b/arch/sh/configs/kfr2r09_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -33,15 +32,12 @@ CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
@@ -49,7 +45,6 @@ CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_ONENAND=y
CONFIG_MTD_ONENAND_GENERIC=y
CONFIG_MTD_UBI=y
-# CONFIG_MISC_DEVICES is not set
# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_KEYBOARD_ATKBD is not set
@@ -77,7 +72,6 @@ CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_CLUT224 is not set
# CONFIG_LOGO_SUPERH_MONO is not set
# CONFIG_LOGO_SUPERH_CLUT224 is not set
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB_GADGET=y
CONFIG_USB_CDC_COMPOSITE=m
CONFIG_MMC=y
@@ -91,4 +85,3 @@ CONFIG_TMPFS=y
# CONFIG_NETWORK_FILESYSTEMS is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
diff --git a/arch/sh/configs/landisk_defconfig b/arch/sh/configs/landisk_defconfig
index 6783f31315c7..467f4d2d8e87 100644
--- a/arch/sh/configs/landisk_defconfig
+++ b/arch/sh/configs/landisk_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_SYSCTL_SYSCALL is not set
@@ -24,10 +23,8 @@ CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_PNP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
-CONFIG_IP_NF_QUEUE=m
CONFIG_ATALK=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_BLK_DEV_LOOP=y
@@ -118,7 +115,6 @@ CONFIG_NFSD_V3=y
CONFIG_SMB_FS=m
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_932=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_SH_STANDARD_BIOS=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRC_T10DIF=y
diff --git a/arch/sh/configs/lboxre2_defconfig b/arch/sh/configs/lboxre2_defconfig
index e3c0894b1bb4..9e3edfdf9b2e 100644
--- a/arch/sh/configs/lboxre2_defconfig
+++ b/arch/sh/configs/lboxre2_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_SYSCTL_SYSCALL is not set
@@ -28,7 +27,6 @@ CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_PNP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
@@ -61,7 +59,6 @@ CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
CONFIG_ROMFS_FS=y
CONFIG_NLS_CODEPAGE_437=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_SH_STANDARD_BIOS=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRC_T10DIF=y
diff --git a/arch/sh/configs/magicpanelr2_defconfig b/arch/sh/configs/magicpanelr2_defconfig
index 9479872b1ae6..fb7415dbc102 100644
--- a/arch/sh/configs/magicpanelr2_defconfig
+++ b/arch/sh/configs/magicpanelr2_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -35,16 +34,13 @@ CONFIG_IP_PNP_DHCP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -55,8 +51,6 @@ CONFIG_NETDEVICES=y
CONFIG_SMSC_PHY=y
CONFIG_NET_ETHERNET=y
CONFIG_SMSC911X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_MOUSE_PS2 is not set
CONFIG_SERIAL_8250=y
@@ -68,7 +62,6 @@ CONFIG_SERIAL_SH_SCI=y
CONFIG_SERIAL_SH_SCI_CONSOLE=y
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
# CONFIG_RTC_HCTOSYS is not set
@@ -96,7 +89,5 @@ CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_KOBJECT=y
CONFIG_DEBUG_INFO=y
CONFIG_FRAME_POINTER=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=m
diff --git a/arch/sh/configs/microdev_defconfig b/arch/sh/configs/microdev_defconfig
index f1d2e1b5ee41..c3f7d5899922 100644
--- a/arch/sh/configs/microdev_defconfig
+++ b/arch/sh/configs/microdev_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
@@ -19,7 +18,6 @@ CONFIG_SUPERHYWAY=y
CONFIG_NET=y
CONFIG_INET=y
CONFIG_IP_PNP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_FW_LOADER is not set
@@ -45,6 +43,5 @@ CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_CRYPTO_ECB=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/migor_defconfig b/arch/sh/configs/migor_defconfig
index cc61eda44922..e04f21be0756 100644
--- a/arch/sh/configs/migor_defconfig
+++ b/arch/sh/configs/migor_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
@@ -26,15 +25,11 @@ CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_FW_LOADER=m
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -47,8 +42,6 @@ CONFIG_BLK_DEV_SD=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SMC91X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_KEYBOARD_ATKBD is not set
@@ -101,7 +94,6 @@ CONFIG_TMPFS=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_CRYPTO_MANAGER=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/sh/configs/polaris_defconfig b/arch/sh/configs/polaris_defconfig
index f3d5d9f76310..0a432b5f50e7 100644
--- a/arch/sh/configs/polaris_defconfig
+++ b/arch/sh/configs/polaris_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
@@ -37,14 +36,11 @@ CONFIG_IP_MULTICAST=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -57,8 +53,6 @@ CONFIG_NETDEVICES=y
CONFIG_SMSC_PHY=y
CONFIG_NET_ETHERNET=y
CONFIG_SMSC911X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -71,7 +65,6 @@ CONFIG_SERIAL_SH_SCI_CONSOLE=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_SH=y
@@ -91,5 +84,3 @@ CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_DEBUG_SPINLOCK_SLEEP=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_SG=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
diff --git a/arch/sh/configs/r7780mp_defconfig b/arch/sh/configs/r7780mp_defconfig
index 920b8471ceb7..435bcd66c667 100644
--- a/arch/sh/configs/r7780mp_defconfig
+++ b/arch/sh/configs/r7780mp_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_IKCONFIG=y
@@ -35,13 +34,11 @@ CONFIG_INET=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_BRIDGE=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_FW_LOADER=m
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_COMPLEX_MAPPINGS=y
@@ -110,7 +107,6 @@ CONFIG_DEBUG_KERNEL=y
CONFIG_DETECT_HUNG_TASK=y
# CONFIG_DEBUG_PREEMPT is not set
CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_HMAC=y
diff --git a/arch/sh/configs/r7785rp_defconfig b/arch/sh/configs/r7785rp_defconfig
index c77da6be06b8..5877e6d1f285 100644
--- a/arch/sh/configs/r7785rp_defconfig
+++ b/arch/sh/configs/r7785rp_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -42,7 +41,6 @@ CONFIG_INET=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_BRIDGE=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
@@ -104,7 +102,6 @@ CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_DEBUG_LOCKING_API_SELFTESTS=y
CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_SH_STANDARD_BIOS=y
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_4KSTACKS=y
diff --git a/arch/sh/configs/rsk7201_defconfig b/arch/sh/configs/rsk7201_defconfig
index 5df916d931c5..b195bc01e406 100644
--- a/arch/sh/configs/rsk7201_defconfig
+++ b/arch/sh/configs/rsk7201_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -37,10 +36,7 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -58,8 +54,6 @@ CONFIG_SERIAL_SH_SCI_CONSOLE=y
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
CONFIG_THERMAL=y
-CONFIG_VIDEO_OUTPUT_CONTROL=y
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_SH=y
@@ -71,5 +65,3 @@ CONFIG_ROMFS_FS=y
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
diff --git a/arch/sh/configs/rsk7203_defconfig b/arch/sh/configs/rsk7203_defconfig
index 3c4f6f4d52b0..8c471959bbc7 100644
--- a/arch/sh/configs/rsk7203_defconfig
+++ b/arch/sh/configs/rsk7203_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -44,7 +43,6 @@ CONFIG_IP_PNP_DHCP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
@@ -52,10 +50,7 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -64,8 +59,6 @@ CONFIG_NETDEVICES=y
CONFIG_SMSC_PHY=y
CONFIG_NET_ETHERNET=y
CONFIG_SMSC911X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_INPUT_FF_MEMLESS=m
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
@@ -81,7 +74,6 @@ CONFIG_SERIAL_SH_SCI_CONSOLE=y
# CONFIG_HWMON is not set
CONFIG_THERMAL=y
CONFIG_REGULATOR=y
-CONFIG_VIDEO_OUTPUT_CONTROL=y
CONFIG_HID_A4TECH=y
CONFIG_HID_APPLE=y
CONFIG_HID_BELKIN=y
@@ -130,6 +122,4 @@ CONFIG_DEBUG_VM=y
CONFIG_DEBUG_LIST=y
CONFIG_DEBUG_SG=y
CONFIG_FRAME_POINTER=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_DEBUG_STACK_USAGE=y
diff --git a/arch/sh/configs/rsk7264_defconfig b/arch/sh/configs/rsk7264_defconfig
index eecdf65bb789..2b9b731fc86b 100644
--- a/arch/sh/configs/rsk7264_defconfig
+++ b/arch/sh/configs/rsk7264_defconfig
@@ -35,7 +35,6 @@ CONFIG_IP_PNP_DHCP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
@@ -61,11 +60,9 @@ CONFIG_SERIAL_SH_SCI_CONSOLE=y
# CONFIG_HWMON is not set
CONFIG_USB=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_R8A66597_HCD=y
CONFIG_USB_STORAGE=y
CONFIG_USB_STORAGE_DEBUG=y
-CONFIG_USB_LIBUSUAL=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
diff --git a/arch/sh/configs/rsk7269_defconfig b/arch/sh/configs/rsk7269_defconfig
index 8370b10df357..d041f7bcb84c 100644
--- a/arch/sh/configs/rsk7269_defconfig
+++ b/arch/sh/configs/rsk7269_defconfig
@@ -24,7 +24,6 @@ CONFIG_IP_PNP_DHCP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
@@ -44,11 +43,9 @@ CONFIG_SERIAL_SH_SCI_CONSOLE=y
# CONFIG_HWMON is not set
CONFIG_USB=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_R8A66597_HCD=y
CONFIG_USB_STORAGE=y
CONFIG_USB_STORAGE_DEBUG=y
-CONFIG_USB_LIBUSUAL=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
@@ -60,5 +57,4 @@ CONFIG_PARTITION_ADVANCED=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_MUST_CHECK is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
# CONFIG_FTRACE is not set
diff --git a/arch/sh/configs/rts7751r2d1_defconfig b/arch/sh/configs/rts7751r2d1_defconfig
index a3d081095ce2..379d673f5ce8 100644
--- a/arch/sh/configs/rts7751r2d1_defconfig
+++ b/arch/sh/configs/rts7751r2d1_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -22,7 +21,6 @@ CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_FW_LOADER=m
@@ -48,7 +46,6 @@ CONFIG_HW_RANDOM=y
CONFIG_SPI=y
CONFIG_SPI_SH_SCI=y
CONFIG_MFD_SM501=y
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
CONFIG_FB_SH_MOBILE_LCDC=m
CONFIG_FB_SM501=y
@@ -83,7 +80,6 @@ CONFIG_USB=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_STORAGE=y
-CONFIG_USB_LIBUSUAL=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_R9701=y
CONFIG_EXT2_FS=y
@@ -94,6 +90,5 @@ CONFIG_TMPFS=y
CONFIG_MINIX_FS=y
CONFIG_NLS_CODEPAGE_932=y
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRC_T10DIF=y
diff --git a/arch/sh/configs/rts7751r2dplus_defconfig b/arch/sh/configs/rts7751r2dplus_defconfig
index b1a04f3c598b..11177bceda83 100644
--- a/arch/sh/configs/rts7751r2dplus_defconfig
+++ b/arch/sh/configs/rts7751r2dplus_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -22,15 +21,11 @@ CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_FW_LOADER=m
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_PHYSMAP=y
@@ -56,7 +51,6 @@ CONFIG_HW_RANDOM=y
CONFIG_SPI=y
CONFIG_SPI_SH_SCI=y
CONFIG_MFD_SM501=y
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
CONFIG_FB_SH_MOBILE_LCDC=m
CONFIG_FB_SM501=y
@@ -91,7 +85,6 @@ CONFIG_USB=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_STORAGE=y
-CONFIG_USB_LIBUSUAL=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_R9701=y
CONFIG_EXT2_FS=y
@@ -102,6 +95,5 @@ CONFIG_TMPFS=y
CONFIG_MINIX_FS=y
CONFIG_NLS_CODEPAGE_932=y
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRC_T10DIF=y
diff --git a/arch/sh/configs/sdk7780_defconfig b/arch/sh/configs/sdk7780_defconfig
index bbd4c2298708..95e5208b8260 100644
--- a/arch/sh/configs/sdk7780_defconfig
+++ b/arch/sh/configs/sdk7780_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_LOCALVERSION="_SDK7780"
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -39,7 +38,6 @@ CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
CONFIG_IPV6=y
# CONFIG_INET6_XFRM_MODE_BEET is not set
CONFIG_NET_SCHED=y
@@ -47,7 +45,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_PARPORT=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_PLATFORM=y
@@ -63,8 +60,6 @@ CONFIG_BLK_DEV_DM=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SMC91X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_NETCONSOLE=y
CONFIG_INPUT_FF_MEMLESS=m
CONFIG_INPUT_EVDEV=y
@@ -78,7 +73,6 @@ CONFIG_SSB=y
CONFIG_SSB_DRIVER_PCICORE=y
CONFIG_FB=y
CONFIG_FB_SH_MOBILE_LCDC=m
-CONFIG_DISPLAY_SUPPORT=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_LOGO=y
@@ -101,7 +95,6 @@ CONFIG_HID_SAMSUNG=y
CONFIG_HID_SONY=y
CONFIG_HID_SUNPLUS=y
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_MON=y
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
@@ -144,8 +137,6 @@ CONFIG_DETECT_HUNG_TASK=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_TIMER_STATS=y
CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_SH_STANDARD_BIOS=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
diff --git a/arch/sh/configs/sdk7786_defconfig b/arch/sh/configs/sdk7786_defconfig
index 36642ec2cb97..e9ee0c878ead 100644
--- a/arch/sh/configs/sdk7786_defconfig
+++ b/arch/sh/configs/sdk7786_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_KERNEL_LZO=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -90,13 +89,11 @@ CONFIG_NET_KEY=y
CONFIG_INET=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_BLOCK=y
CONFIG_FTL=y
@@ -119,7 +116,6 @@ CONFIG_MTD_UBI_GLUEBI=m
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=y
CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_PLATFORM=y
@@ -140,8 +136,6 @@ CONFIG_MDIO_BITBANG=y
CONFIG_NET_ETHERNET=y
CONFIG_SMC91X=y
CONFIG_SMSC911X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_WLAN is not set
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_SERIAL_SH_SCI=y
@@ -157,7 +151,6 @@ CONFIG_SPI=y
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
CONFIG_SH_WDT=y
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_USB=y
CONFIG_USB_MON=y
CONFIG_USB_OHCI_HCD=y
@@ -223,9 +216,7 @@ CONFIG_DEBUG_KERNEL=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_TIMER_STATS=y
CONFIG_DEBUG_MEMORY_INIT=y
-# CONFIG_RCU_CPU_STALL_VERBOSE is not set
CONFIG_LATENCYTOP=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_FUNCTION_TRACER=y
# CONFIG_FUNCTION_GRAPH_TRACER is not set
CONFIG_DMA_API_DEBUG=y
diff --git a/arch/sh/configs/se7206_defconfig b/arch/sh/configs/se7206_defconfig
index 91853a67ec34..3553acd5edb1 100644
--- a/arch/sh/configs/se7206_defconfig
+++ b/arch/sh/configs/se7206_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -57,7 +56,6 @@ CONFIG_IP_PNP_DHCP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
@@ -65,9 +63,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -78,8 +73,6 @@ CONFIG_EEPROM_93CX6=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SMC91X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
@@ -109,7 +102,6 @@ CONFIG_DEBUG_SPINLOCK_SLEEP=y
CONFIG_DEBUG_VM=y
CONFIG_DEBUG_LIST=y
CONFIG_FRAME_POINTER=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y
diff --git a/arch/sh/configs/se7343_defconfig b/arch/sh/configs/se7343_defconfig
index 201acb4652f7..fc77a67b16e7 100644
--- a/arch/sh/configs/se7343_defconfig
+++ b/arch/sh/configs/se7343_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -27,26 +26,19 @@ CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_SYN_COOKIES=y
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_RAM=y
CONFIG_MTD_PHYSMAP=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=y
CONFIG_SCSI_MULTI_LUN=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_NETDEVICES=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_USB_USBNET=y
# CONFIG_USB_NET_AX8817X is not set
CONFIG_USB_NET_DM9601=y
@@ -104,5 +96,4 @@ CONFIG_CRAMFS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFSD=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/se7619_defconfig b/arch/sh/configs/se7619_defconfig
index 9a9ad9adf959..f54722dbc8f5 100644
--- a/arch/sh/configs/se7619_defconfig
+++ b/arch/sh/configs/se7619_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_UID16 is not set
@@ -24,10 +23,7 @@ CONFIG_BINFMT_ZFLAT=y
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_REDBOOT_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -48,4 +44,3 @@ CONFIG_SERIAL_SH_SCI_CONSOLE=y
# CONFIG_SYSFS is not set
CONFIG_ROMFS_FS=y
# CONFIG_ENABLE_MUST_CHECK is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
diff --git a/arch/sh/configs/se7705_defconfig b/arch/sh/configs/se7705_defconfig
index 044e0844fda1..ddfc69841955 100644
--- a/arch/sh/configs/se7705_defconfig
+++ b/arch/sh/configs/se7705_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_SWAP is not set
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
@@ -27,11 +26,8 @@ CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -58,5 +54,4 @@ CONFIG_PROC_KCORE=y
CONFIG_JFFS2_FS=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/se7712_defconfig b/arch/sh/configs/se7712_defconfig
index 1248635e4f88..5a1097641247 100644
--- a/arch/sh/configs/se7712_defconfig
+++ b/arch/sh/configs/se7712_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
@@ -47,7 +46,6 @@ CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=y
CONFIG_INET_ESP=y
CONFIG_INET_IPCOMP=y
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_NET_SCHED=y
@@ -68,9 +66,6 @@ CONFIG_NET_CLS_FW=y
CONFIG_NET_CLS_IND=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -104,8 +99,6 @@ CONFIG_ROOT_NFS=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_INFO=y
CONFIG_FRAME_POINTER=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_PCBC=m
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/se7721_defconfig b/arch/sh/configs/se7721_defconfig
index c3ba6e8a9818..9c0ef13bee10 100644
--- a/arch/sh/configs/se7721_defconfig
+++ b/arch/sh/configs/se7721_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
@@ -46,7 +45,6 @@ CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=y
CONFIG_INET_ESP=y
CONFIG_INET_IPCOMP=y
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_NET_SCHED=y
@@ -67,9 +65,6 @@ CONFIG_NET_CLS_FW=y
CONFIG_NET_CLS_IND=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -132,6 +127,5 @@ CONFIG_NLS_ISO8859_1=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_INFO=y
CONFIG_FRAME_POINTER=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRC_CCITT=y
diff --git a/arch/sh/configs/se7722_defconfig b/arch/sh/configs/se7722_defconfig
index ae998c7e2ee0..ccc7fc423fde 100644
--- a/arch/sh/configs/se7722_defconfig
+++ b/arch/sh/configs/se7722_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_IKCONFIG=y
@@ -26,7 +25,6 @@ CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_FW_LOADER is not set
@@ -57,6 +55,5 @@ CONFIG_PRINTK_TIME=y
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_SH_STANDARD_BIOS=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/se7724_defconfig b/arch/sh/configs/se7724_defconfig
index 1faa788aecae..aedb3a2d9a10 100644
--- a/arch/sh/configs/se7724_defconfig
+++ b/arch/sh/configs/se7724_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -30,14 +29,10 @@ CONFIG_IP_PNP_DHCP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -53,8 +48,6 @@ CONFIG_SMSC_PHY=y
CONFIG_NET_ETHERNET=y
CONFIG_SH_ETH=y
CONFIG_SMC91X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_KEYBOARD_ATKBD is not set
@@ -137,8 +130,6 @@ CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_932=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_MUST_CHECK is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_CRYPTO=y
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/se7750_defconfig b/arch/sh/configs/se7750_defconfig
index 912c98590e22..b23f67542728 100644
--- a/arch/sh/configs/se7750_defconfig
+++ b/arch/sh/configs/se7750_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -25,11 +24,8 @@ CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -58,5 +54,4 @@ CONFIG_ROOT_NFS=y
CONFIG_PARTITION_ADVANCED=y
# CONFIG_MSDOS_PARTITION is not set
# CONFIG_ENABLE_MUST_CHECK is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/se7751_defconfig b/arch/sh/configs/se7751_defconfig
index 75c92fc1876b..162343683937 100644
--- a/arch/sh/configs/se7751_defconfig
+++ b/arch/sh/configs/se7751_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_LOG_BUF_SHIFT=14
@@ -25,13 +24,9 @@ CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
-CONFIG_NETFILTER_DEBUG=y
-CONFIG_IP_NF_QUEUE=y
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -49,5 +44,4 @@ CONFIG_EXT2_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/se7780_defconfig b/arch/sh/configs/se7780_defconfig
index b0ef63ce525a..ec32c82646ed 100644
--- a/arch/sh/configs/se7780_defconfig
+++ b/arch/sh/configs/se7780_defconfig
@@ -24,7 +24,6 @@ CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
-# CONFIG_INET_LRO is not set
CONFIG_IPV6=y
# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
@@ -32,8 +31,6 @@ CONFIG_IPV6=y
# CONFIG_IPV6_SIT is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -54,8 +51,6 @@ CONFIG_SMSC_PHY=y
CONFIG_NET_ETHERNET=y
CONFIG_SMC91X=y
CONFIG_NET_PCI=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_INPUT_FF_MEMLESS=m
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
# CONFIG_INPUT_KEYBOARD is not set
@@ -94,7 +89,6 @@ CONFIG_HID_SAMSUNG=y
CONFIG_HID_SONY=y
CONFIG_HID_SUNPLUS=y
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_MON=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_OHCI_HCD=y
@@ -110,5 +104,4 @@ CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_ROOT_NFS=y
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/secureedge5410_defconfig b/arch/sh/configs/secureedge5410_defconfig
index 7eae4e59d7f0..360592d63a2f 100644
--- a/arch/sh/configs/secureedge5410_defconfig
+++ b/arch/sh/configs/secureedge5410_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_SWAP is not set
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
@@ -18,12 +17,9 @@ CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK_RO=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -34,14 +30,11 @@ CONFIG_MTD_CFI_GEOMETRY=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_PLATRAM=y
CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_NET_PCI=y
CONFIG_8139CP=y
CONFIG_8139TOO=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -51,7 +44,6 @@ CONFIG_SERIAL_SH_SCI=y
CONFIG_SERIAL_SH_SCI_CONSOLE=y
# CONFIG_HW_RANDOM is not set
# CONFIG_HWMON is not set
-# CONFIG_HID_SUPPORT is not set
# CONFIG_USB_SUPPORT is not set
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_DS1302=y
@@ -60,4 +52,3 @@ CONFIG_EXT2_FS=y
CONFIG_TMPFS=y
CONFIG_CRAMFS=y
CONFIG_ROMFS_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
diff --git a/arch/sh/configs/sh03_defconfig b/arch/sh/configs/sh03_defconfig
index 0cf4097b71e8..2156223405a1 100644
--- a/arch/sh/configs/sh03_defconfig
+++ b/arch/sh/configs/sh03_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -34,7 +33,6 @@ CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_STANDALONE is not set
@@ -70,7 +68,6 @@ CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_EXT3_FS_POSIX_ACL=y
-CONFIG_AUTOFS_FS=y
CONFIG_AUTOFS4_FS=y
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
@@ -126,7 +123,6 @@ CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_SH_STANDARD_BIOS=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_HMAC=y
diff --git a/arch/sh/configs/sh2007_defconfig b/arch/sh/configs/sh2007_defconfig
index df25ae774ee0..34094e05e892 100644
--- a/arch/sh/configs/sh2007_defconfig
+++ b/arch/sh/configs/sh2007_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -42,7 +41,6 @@ CONFIG_NET_IPIP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_NETWORK_SECMARK=y
CONFIG_NET_PKTGEN=y
@@ -50,7 +48,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_CDROM_PKTCDVD=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_RAID_ATTRS=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
@@ -72,8 +69,6 @@ CONFIG_TUN=y
CONFIG_VETH=y
CONFIG_NET_ETHERNET=y
CONFIG_SMSC911X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_WLAN is not set
CONFIG_INPUT_FF_MEMLESS=y
# CONFIG_INPUT_MOUSEDEV is not set
@@ -95,9 +90,7 @@ CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_LOGO=y
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_MON=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
@@ -172,7 +165,6 @@ CONFIG_DEBUG_KERNEL=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_DEBUG_INFO=y
CONFIG_FRAME_POINTER=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_SH_STANDARD_BIOS=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_AUTHENC=y
diff --git a/arch/sh/configs/sh7710voipgw_defconfig b/arch/sh/configs/sh7710voipgw_defconfig
index f92ad17cd629..65a1aad899c8 100644
--- a/arch/sh/configs/sh7710voipgw_defconfig
+++ b/arch/sh/configs/sh7710voipgw_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -24,7 +23,6 @@ CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_SYN_COOKIES=y
-# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
@@ -36,8 +34,6 @@ CONFIG_NET_CLS_ROUTE4=y
CONFIG_NET_CLS_U32=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -59,5 +55,4 @@ CONFIG_THERMAL=y
# CONFIG_DNOTIFY is not set
CONFIG_JFFS2_FS=y
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/sh7724_generic_defconfig b/arch/sh/configs/sh7724_generic_defconfig
index f83ac7b0b031..d15e53647983 100644
--- a/arch/sh/configs/sh7724_generic_defconfig
+++ b/arch/sh/configs/sh7724_generic_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_CGROUPS=y
@@ -18,7 +17,6 @@ CONFIG_HIBERNATION=y
CONFIG_CPU_IDLE=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
-# CONFIG_MISC_DEVICES is not set
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
@@ -44,5 +42,4 @@ CONFIG_UIO_PDRV_GENIRQ=y
# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRC32 is not set
diff --git a/arch/sh/configs/sh7757lcr_defconfig b/arch/sh/configs/sh7757lcr_defconfig
index cfde98ddb29d..b0c4bc830fb8 100644
--- a/arch/sh/configs/sh7757lcr_defconfig
+++ b/arch/sh/configs/sh7757lcr_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -32,13 +31,11 @@ CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
-# CONFIG_INET_LRO is not set
CONFIG_IPV6=y
# CONFIG_WIRELESS is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_M25P80=y
CONFIG_BLK_DEV_RAM=y
@@ -48,7 +45,6 @@ CONFIG_NETDEVICES=y
CONFIG_VITESSE_PHY=y
CONFIG_NET_ETHERNET=y
CONFIG_SH_ETH=y
-# CONFIG_NETDEV_10000 is not set
# CONFIG_WLAN is not set
# CONFIG_KEYBOARD_ATKBD is not set
# CONFIG_MOUSE_PS2 is not set
diff --git a/arch/sh/configs/sh7763rdp_defconfig b/arch/sh/configs/sh7763rdp_defconfig
index 479536440264..2ef780fb9813 100644
--- a/arch/sh/configs/sh7763rdp_defconfig
+++ b/arch/sh/configs/sh7763rdp_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
@@ -26,11 +25,9 @@ CONFIG_INET=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_BLKDEVS=y
CONFIG_MTD_CFI=y
@@ -43,14 +40,11 @@ CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_CFI_STAA=y
CONFIG_MTD_COMPLEX_MAPPINGS=y
CONFIG_MTD_PHYSMAP=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SH_ETH=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
@@ -65,7 +59,6 @@ CONFIG_FB_FOREIGN_ENDIAN=y
CONFIG_FB_SH7760=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=y
CONFIG_USB_MON=y
CONFIG_USB_OHCI_HCD=y
@@ -74,7 +67,6 @@ CONFIG_MMC=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
-CONFIG_AUTOFS_FS=y
CONFIG_AUTOFS4_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
@@ -124,6 +116,5 @@ CONFIG_NLS_UTF8=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRC_T10DIF=y
diff --git a/arch/sh/configs/sh7770_generic_defconfig b/arch/sh/configs/sh7770_generic_defconfig
index 025bd3ac5ab0..742634b37c0a 100644
--- a/arch/sh/configs/sh7770_generic_defconfig
+++ b/arch/sh/configs/sh7770_generic_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_CGROUPS=y
@@ -20,7 +19,6 @@ CONFIG_HIBERNATION=y
CONFIG_CPU_IDLE=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
-# CONFIG_MISC_DEVICES is not set
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
@@ -46,5 +44,4 @@ CONFIG_UIO_PDRV_GENIRQ=y
# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_CRC32 is not set
diff --git a/arch/sh/configs/sh7785lcr_32bit_defconfig b/arch/sh/configs/sh7785lcr_32bit_defconfig
index 2fce54d9c388..2ddf5ca7094e 100644
--- a/arch/sh/configs/sh7785lcr_32bit_defconfig
+++ b/arch/sh/configs/sh7785lcr_32bit_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -44,13 +43,9 @@ CONFIG_INET=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -58,7 +53,6 @@ CONFIG_MTD_PHYSMAP=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
# CONFIG_SCSI_PROC_FS is not set
CONFIG_BLK_DEV_SD=y
# CONFIG_SCSI_LOWLEVEL is not set
@@ -69,7 +63,6 @@ CONFIG_NET_ETHERNET=y
CONFIG_NET_VENDOR_3COM=y
CONFIG_VORTEX=y
CONFIG_R8169=y
-# CONFIG_NETDEV_10000 is not set
# CONFIG_WLAN is not set
CONFIG_INPUT_FF_MEMLESS=m
CONFIG_INPUT_EVDEV=y
@@ -113,7 +106,6 @@ CONFIG_SND_CMIPCI=y
CONFIG_SND_EMU10K1=y
# CONFIG_SND_SUPERH is not set
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_R8A66597_HCD=y
CONFIG_USB_STORAGE=y
CONFIG_MMC=y
@@ -154,9 +146,7 @@ CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_SPINLOCK_SLEEP=y
CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_LATENCYTOP=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
# CONFIG_FTRACE is not set
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/sh7785lcr_defconfig b/arch/sh/configs/sh7785lcr_defconfig
index d29da4a0f6c2..7098828d392e 100644
--- a/arch/sh/configs/sh7785lcr_defconfig
+++ b/arch/sh/configs/sh7785lcr_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_IKCONFIG=y
@@ -26,27 +25,21 @@ CONFIG_INET=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_PHYSMAP=y
CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_BLK_DEV_SD=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_ATA=y
CONFIG_SATA_SIL=y
CONFIG_NETDEVICES=y
CONFIG_R8169=y
-# CONFIG_NETDEV_10000 is not set
CONFIG_INPUT_FF_MEMLESS=m
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
# CONFIG_KEYBOARD_ATKBD is not set
@@ -121,8 +114,6 @@ CONFIG_NLS_ISO8859_1=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DETECT_HUNG_TASK=y
# CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
diff --git a/arch/sh/configs/shmin_defconfig b/arch/sh/configs/shmin_defconfig
index 4802e14a4649..d589cfdfb7eb 100644
--- a/arch/sh/configs/shmin_defconfig
+++ b/arch/sh/configs/shmin_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_SWAP is not set
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_UID16 is not set
@@ -28,10 +27,8 @@ CONFIG_NET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_PNP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
@@ -53,6 +50,5 @@ CONFIG_CRAMFS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_ROOT_NFS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_SH_STANDARD_BIOS=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/shx3_defconfig b/arch/sh/configs/shx3_defconfig
index 4a4269ad5b04..755c4f73c718 100644
--- a/arch/sh/configs/shx3_defconfig
+++ b/arch/sh/configs/shx3_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -56,7 +55,6 @@ CONFIG_NET=y
CONFIG_INET=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
-# CONFIG_INET_LRO is not set
CONFIG_CAN=m
CONFIG_CAN_RAW=m
CONFIG_CAN_BCM=m
@@ -70,8 +68,6 @@ CONFIG_PATA_PLATFORM=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SMC91X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
@@ -82,7 +78,6 @@ CONFIG_I2C=m
CONFIG_SPI=y
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
-CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_USB=y
CONFIG_USB_MON=y
CONFIG_USB_R8A66597_HCD=m
@@ -104,7 +99,6 @@ CONFIG_DEBUG_SHIRQ=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEBUG_VM=y
CONFIG_FRAME_POINTER=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_SH_STANDARD_BIOS=y
CONFIG_DEBUG_STACK_USAGE=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/titan_defconfig b/arch/sh/configs/titan_defconfig
index a77b778c745b..ceb48e9b70f4 100644
--- a/arch/sh/configs/titan_defconfig
+++ b/arch/sh/configs/titan_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -49,7 +48,6 @@ CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=y
CONFIG_INET_ESP=y
CONFIG_INET_IPCOMP=y
-# CONFIG_INET_LRO is not set
CONFIG_INET_DIAG=m
CONFIG_IPV6=y
CONFIG_IPV6_PRIVACY=y
@@ -79,7 +77,6 @@ CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
-CONFIG_IP_NF_QUEUE=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_AH=m
@@ -88,7 +85,6 @@ CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
@@ -96,7 +92,6 @@ CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
-CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
@@ -106,7 +101,6 @@ CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_HL=m
-CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
@@ -154,7 +148,6 @@ CONFIG_FW_LOADER=m
CONFIG_CONNECTOR=m
CONFIG_MTD=m
CONFIG_MTD_DEBUG=y
-CONFIG_MTD_CHAR=m
CONFIG_MTD_BLOCK=m
CONFIG_FTL=m
CONFIG_NFTL=m
@@ -261,7 +254,6 @@ CONFIG_NLS_UTF8=m
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_MD4=m
diff --git a/arch/sh/configs/ul2_defconfig b/arch/sh/configs/ul2_defconfig
index 2d288b887fbd..5f2921a85192 100644
--- a/arch/sh/configs/ul2_defconfig
+++ b/arch/sh/configs/ul2_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_IKCONFIG=y
@@ -29,7 +28,6 @@ CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_CFG80211=y
CONFIG_MAC80211=y
@@ -37,9 +35,6 @@ CONFIG_MAC80211_RC_PID=y
# CONFIG_MAC80211_RC_MINSTREL is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
@@ -50,8 +45,6 @@ CONFIG_ATA=y
CONFIG_PATA_PLATFORM=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
CONFIG_LIBERTAS=m
CONFIG_LIBERTAS_SDIO=m
CONFIG_LIBERTAS_DEBUG=y
@@ -70,7 +63,6 @@ CONFIG_SERIAL_SH_SCI_CONSOLE=y
# CONFIG_UNIX98_PTYS is not set
# CONFIG_LEGACY_PTYS is not set
# CONFIG_HW_RANDOM is not set
-# CONFIG_HID_SUPPORT is not set
CONFIG_USB=y
CONFIG_USB_MON=y
CONFIG_USB_R8A66597_HCD=y
@@ -92,6 +84,5 @@ CONFIG_NLS_CODEPAGE_932=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_CRYPTO_MICHAEL_MIC=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/sh/configs/urquell_defconfig b/arch/sh/configs/urquell_defconfig
index 01c9a91ee896..7d5591b7c088 100644
--- a/arch/sh/configs/urquell_defconfig
+++ b/arch/sh/configs/urquell_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
@@ -46,20 +45,15 @@ CONFIG_INET=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_PHYSMAP=y
CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
CONFIG_BLK_DEV_SD=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_ATA=y
@@ -73,7 +67,6 @@ CONFIG_NET_PCI=y
CONFIG_8139CP=y
CONFIG_SKY2=y
CONFIG_SKY2_DEBUG=y
-# CONFIG_NETDEV_10000 is not set
CONFIG_INPUT_FF_MEMLESS=m
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
# CONFIG_KEYBOARD_ATKBD is not set
@@ -150,8 +143,6 @@ CONFIG_DEBUG_KERNEL=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEBUG_INFO=y
CONFIG_FRAME_POINTER=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
# CONFIG_FTRACE is not set
# CONFIG_DUMP_CODE is not set
CONFIG_CRYPTO_HMAC=y
diff --git a/arch/sh/drivers/pci/fixups-cayman.c b/arch/sh/drivers/pci/fixups-cayman.c
index edc2fb7a5bb2..32467884d6f7 100644
--- a/arch/sh/drivers/pci/fixups-cayman.c
+++ b/arch/sh/drivers/pci/fixups-cayman.c
@@ -5,7 +5,7 @@
#include <cpu/irq.h>
#include "pci-sh5.h"
-int __init pcibios_map_platform_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_platform_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int result = -1;
diff --git a/arch/sh/drivers/pci/fixups-dreamcast.c b/arch/sh/drivers/pci/fixups-dreamcast.c
index 1d1c5a227e50..48aaefd8f5d6 100644
--- a/arch/sh/drivers/pci/fixups-dreamcast.c
+++ b/arch/sh/drivers/pci/fixups-dreamcast.c
@@ -63,11 +63,10 @@ static void gapspci_fixup_resources(struct pci_dev *dev)
res.end = GAPSPCI_DMA_BASE + GAPSPCI_DMA_SIZE - 1;
res.flags = IORESOURCE_MEM;
pcibios_resource_to_bus(dev->bus, &region, &res);
- BUG_ON(!dma_declare_coherent_memory(&dev->dev,
+ BUG_ON(dma_declare_coherent_memory(&dev->dev,
res.start,
region.start,
resource_size(&res),
- DMA_MEMORY_MAP |
DMA_MEMORY_EXCLUSIVE));
break;
default:
@@ -76,7 +75,7 @@ static void gapspci_fixup_resources(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, gapspci_fixup_resources);
-int __init pcibios_map_platform_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_platform_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
/*
* The interrupt routing semantics here are quite trivial.
diff --git a/arch/sh/drivers/pci/fixups-r7780rp.c b/arch/sh/drivers/pci/fixups-r7780rp.c
index 57ed3f09d0c2..2c9b58f848dd 100644
--- a/arch/sh/drivers/pci/fixups-r7780rp.c
+++ b/arch/sh/drivers/pci/fixups-r7780rp.c
@@ -15,7 +15,7 @@
#include <linux/sh_intc.h>
#include "pci-sh4.h"
-int __init pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
+int pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
{
return evt2irq(0xa20) + slot;
}
diff --git a/arch/sh/drivers/pci/fixups-rts7751r2d.c b/arch/sh/drivers/pci/fixups-rts7751r2d.c
index eaddb56c45c6..358ac104f08c 100644
--- a/arch/sh/drivers/pci/fixups-rts7751r2d.c
+++ b/arch/sh/drivers/pci/fixups-rts7751r2d.c
@@ -20,18 +20,18 @@
#define PCIMCR_MRSET_OFF 0xBFFFFFFF
#define PCIMCR_RFSH_OFF 0xFFFFFFFB
-static u8 rts7751r2d_irq_tab[] __initdata = {
+static u8 rts7751r2d_irq_tab[] = {
IRQ_PCI_INTA,
IRQ_PCI_INTB,
IRQ_PCI_INTC,
IRQ_PCI_INTD,
};
-static char lboxre2_irq_tab[] __initdata = {
+static char lboxre2_irq_tab[] = {
IRQ_ETH0, IRQ_ETH1, IRQ_INTA, IRQ_INTD,
};
-int __init pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
+int pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
{
if (mach_is_lboxre2())
return lboxre2_irq_tab[slot];
diff --git a/arch/sh/drivers/pci/fixups-sdk7780.c b/arch/sh/drivers/pci/fixups-sdk7780.c
index c0a015ae6ecf..24e96dfbdb22 100644
--- a/arch/sh/drivers/pci/fixups-sdk7780.c
+++ b/arch/sh/drivers/pci/fixups-sdk7780.c
@@ -22,7 +22,7 @@
#define IRQ_INTD evt2irq(0xa80)
/* IDSEL [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] */
-static char sdk7780_irq_tab[4][16] __initdata = {
+static char sdk7780_irq_tab[4][16] = {
/* INTA */
{ IRQ_INTA, IRQ_INTD, IRQ_INTC, IRQ_INTD, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1 },
@@ -37,7 +37,7 @@ static char sdk7780_irq_tab[4][16] __initdata = {
-1, -1, -1 },
};
-int __init pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
+int pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
{
return sdk7780_irq_tab[pin-1][slot];
}
diff --git a/arch/sh/drivers/pci/fixups-se7751.c b/arch/sh/drivers/pci/fixups-se7751.c
index 84a88ca92008..1cb8d0ac4fdb 100644
--- a/arch/sh/drivers/pci/fixups-se7751.c
+++ b/arch/sh/drivers/pci/fixups-se7751.c
@@ -7,7 +7,7 @@
#include <linux/sh_intc.h>
#include "pci-sh4.h"
-int __init pcibios_map_platform_irq(const struct pci_dev *, u8 slot, u8 pin)
+int pcibios_map_platform_irq(const struct pci_dev *, u8 slot, u8 pin)
{
switch (slot) {
case 0: return evt2irq(0x3a0);
diff --git a/arch/sh/drivers/pci/fixups-sh03.c b/arch/sh/drivers/pci/fixups-sh03.c
index 16207bef9f52..55ac1ba2c74f 100644
--- a/arch/sh/drivers/pci/fixups-sh03.c
+++ b/arch/sh/drivers/pci/fixups-sh03.c
@@ -4,7 +4,7 @@
#include <linux/pci.h>
#include <linux/sh_intc.h>
-int __init pcibios_map_platform_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_platform_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int irq;
diff --git a/arch/sh/drivers/pci/fixups-snapgear.c b/arch/sh/drivers/pci/fixups-snapgear.c
index 6e33ba4cd076..a931e5928f58 100644
--- a/arch/sh/drivers/pci/fixups-snapgear.c
+++ b/arch/sh/drivers/pci/fixups-snapgear.c
@@ -19,7 +19,7 @@
#include <linux/sh_intc.h>
#include "pci-sh4.h"
-int __init pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
+int pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
{
int irq = -1;
diff --git a/arch/sh/drivers/pci/fixups-titan.c b/arch/sh/drivers/pci/fixups-titan.c
index bd1addb1b8be..a9d563e479d5 100644
--- a/arch/sh/drivers/pci/fixups-titan.c
+++ b/arch/sh/drivers/pci/fixups-titan.c
@@ -19,7 +19,7 @@
#include <mach/titan.h>
#include "pci-sh4.h"
-static char titan_irq_tab[] __initdata = {
+static char titan_irq_tab[] = {
TITAN_IRQ_WAN,
TITAN_IRQ_LAN,
TITAN_IRQ_MPCIA,
@@ -27,7 +27,7 @@ static char titan_irq_tab[] __initdata = {
TITAN_IRQ_USB,
};
-int __init pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
+int pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
{
int irq = titan_irq_tab[slot];
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index c99ee286b69f..5976a2c8a3e3 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -39,8 +39,12 @@ static void pcibios_scanbus(struct pci_channel *hose)
LIST_HEAD(resources);
struct resource *res;
resource_size_t offset;
- int i;
- struct pci_bus *bus;
+ int i, ret;
+ struct pci_host_bridge *bridge;
+
+ bridge = pci_alloc_host_bridge(0);
+ if (!bridge)
+ return;
for (i = 0; i < hose->nr_resources; i++) {
res = hose->resources + i;
@@ -52,19 +56,26 @@ static void pcibios_scanbus(struct pci_channel *hose)
pci_add_resource_offset(&resources, res, offset);
}
- bus = pci_scan_root_bus(NULL, next_busno, hose->pci_ops, hose,
- &resources);
- hose->bus = bus;
+ list_splice_init(&resources, &bridge->windows);
+ bridge->dev.parent = NULL;
+ bridge->sysdata = hose;
+ bridge->busnr = next_busno;
+ bridge->ops = hose->pci_ops;
+ bridge->swizzle_irq = pci_common_swizzle;
+ bridge->map_irq = pcibios_map_platform_irq;
+
+ ret = pci_scan_root_bus_bridge(bridge);
+ if (ret) {
+ pci_free_host_bridge(bridge);
+ return;
+ }
+
+ hose->bus = bridge->bus;
need_domain_info = need_domain_info || hose->index;
hose->need_domain_info = need_domain_info;
- if (!bus) {
- pci_free_resource_list(&resources);
- return;
- }
-
- next_busno = bus->busn_res.end + 1;
+ next_busno = hose->bus->busn_res.end + 1;
/* Don't allow 8-bit bus number overflow inside the hose -
reserve some space for bridges. */
if (next_busno > 224) {
@@ -72,9 +83,9 @@ static void pcibios_scanbus(struct pci_channel *hose)
need_domain_info = 1;
}
- pci_bus_size_bridges(bus);
- pci_bus_assign_resources(bus);
- pci_bus_add_devices(bus);
+ pci_bus_size_bridges(hose->bus);
+ pci_bus_assign_resources(hose->bus);
+ pci_bus_add_devices(hose->bus);
}
/*
@@ -144,8 +155,6 @@ static int __init pcibios_init(void)
for (hose = hose_head; hose; hose = hose->next)
pcibios_scanbus(hose);
- pci_fixup_irqs(pci_common_swizzle, pcibios_map_platform_irq);
-
dma_debug_add_bus(&pci_bus_type);
pci_initialized = 1;
@@ -155,14 +164,6 @@ static int __init pcibios_init(void)
subsys_initcall(pcibios_init);
/*
- * Called after each bus is probed, but before its children
- * are examined.
- */
-void pcibios_fixup_bus(struct pci_bus *bus)
-{
-}
-
-/*
* We need to avoid collisions with `mirrored' VGA ports
* and other strange ISA hardware, so we always want the
* addresses to be allocated in the 0x000-0x0ff region
diff --git a/arch/sh/drivers/pci/pcie-sh7786.c b/arch/sh/drivers/pci/pcie-sh7786.c
index a162a7f86b2e..0167a7352719 100644
--- a/arch/sh/drivers/pci/pcie-sh7786.c
+++ b/arch/sh/drivers/pci/pcie-sh7786.c
@@ -467,7 +467,7 @@ static int __init pcie_init(struct sh7786_pcie_port *port)
return 0;
}
-int __init pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
+int pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
{
return evt2irq(0xae0);
}
diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild
index cf2a75063b53..1a6f9c39feef 100644
--- a/arch/sh/include/asm/Kbuild
+++ b/arch/sh/include/asm/Kbuild
@@ -1,40 +1,20 @@
-
-generic-y += bitsperlong.h
generic-y += clkdev.h
generic-y += current.h
generic-y += delay.h
generic-y += div64.h
generic-y += emergency-restart.h
-generic-y += errno.h
generic-y += exec.h
-generic-y += fcntl.h
-generic-y += ioctl.h
-generic-y += ipcbuf.h
generic-y += irq_regs.h
generic-y += irq_work.h
-generic-y += kvm_para.h
generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
-generic-y += mman.h
-generic-y += msgbuf.h
-generic-y += param.h
generic-y += parport.h
generic-y += percpu.h
-generic-y += poll.h
generic-y += preempt.h
-generic-y += resource.h
generic-y += rwsem.h
-generic-y += sembuf.h
generic-y += serial.h
-generic-y += shmbuf.h
-generic-y += siginfo.h
generic-y += sizes.h
-generic-y += socket.h
-generic-y += statfs.h
-generic-y += termbits.h
-generic-y += termios.h
generic-y += trace_clock.h
-generic-y += ucontext.h
generic-y += xor.h
diff --git a/arch/sh/include/asm/bug.h b/arch/sh/include/asm/bug.h
index 1b77f068be2b..5b5086367639 100644
--- a/arch/sh/include/asm/bug.h
+++ b/arch/sh/include/asm/bug.h
@@ -24,14 +24,14 @@
*/
#ifdef CONFIG_DEBUG_BUGVERBOSE
#define _EMIT_BUG_ENTRY \
- "\t.pushsection __bug_table,\"a\"\n" \
+ "\t.pushsection __bug_table,\"aw\"\n" \
"2:\t.long 1b, %O1\n" \
"\t.short %O2, %O3\n" \
"\t.org 2b+%O4\n" \
"\t.popsection\n"
#else
#define _EMIT_BUG_ENTRY \
- "\t.pushsection __bug_table,\"a\"\n" \
+ "\t.pushsection __bug_table,\"aw\"\n" \
"2:\t.long 1b\n" \
"\t.short %O3\n" \
"\t.org 2b+%O4\n" \
@@ -48,6 +48,7 @@ do { \
"i" (__FILE__), \
"i" (__LINE__), "i" (0), \
"i" (sizeof(struct bug_entry))); \
+ unreachable(); \
} while (0)
#define __WARN_FLAGS(flags) \
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index d99008af5f73..9b06be07db4d 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -9,8 +9,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
return dma_ops;
}
-#define DMA_ERROR_CODE 0
-
void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction dir);
diff --git a/arch/sh/include/asm/flat.h b/arch/sh/include/asm/flat.h
index 5d84df5e27f6..275fcae23539 100644
--- a/arch/sh/include/asm/flat.h
+++ b/arch/sh/include/asm/flat.h
@@ -12,11 +12,22 @@
#ifndef __ASM_SH_FLAT_H
#define __ASM_SH_FLAT_H
+#include <asm/unaligned.h>
+
#define flat_argvp_envp_on_stack() 0
#define flat_old_ram_flag(flags) (flags)
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, p) get_unaligned(rp)
-#define flat_put_addr_at_rp(rp, val, relval) put_unaligned(val,rp)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+ *addr = get_unaligned((__force u32 *)rp);
+ return 0;
+}
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+ put_unaligned(addr, (__force u32 *)rp);
+ return 0;
+}
#define flat_get_relocate_addr(rel) (rel)
#define flat_set_persistent(relval, p) ({ (void)p; 0; })
diff --git a/arch/sh/include/asm/futex.h b/arch/sh/include/asm/futex.h
index d0078747d308..8f8cf941a8cd 100644
--- a/arch/sh/include/asm/futex.h
+++ b/arch/sh/include/asm/futex.h
@@ -27,21 +27,12 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
return atomic_futex_op_cmpxchg_inatomic(uval, uaddr, oldval, newval);
}
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval,
+ u32 __user *uaddr)
{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- u32 oparg = (encoded_op << 8) >> 20;
- u32 cmparg = (encoded_op << 20) >> 20;
u32 oldval, newval, prev;
int ret;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
- return -EFAULT;
-
pagefault_disable();
do {
@@ -80,17 +71,8 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
pagefault_enable();
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
- case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
- case FUTEX_OP_CMP_LT: ret = ((int)oldval < (int)cmparg); break;
- case FUTEX_OP_CMP_GE: ret = ((int)oldval >= (int)cmparg); break;
- case FUTEX_OP_CMP_LE: ret = ((int)oldval <= (int)cmparg); break;
- case FUTEX_OP_CMP_GT: ret = ((int)oldval > (int)cmparg); break;
- default: ret = -ENOSYS;
- }
- }
+ if (!ret)
+ *oval = oldval;
return ret;
}
diff --git a/arch/sh/include/asm/processor_32.h b/arch/sh/include/asm/processor_32.h
index 18e0377f72bb..88ce1e22237b 100644
--- a/arch/sh/include/asm/processor_32.h
+++ b/arch/sh/include/asm/processor_32.h
@@ -136,10 +136,6 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_pc, unsigned lo
/* Free all resources held by a thread. */
extern void release_thread(struct task_struct *);
-/* Copy and release all segment info associated with a VM */
-#define copy_segments(p, mm) do { } while(0)
-#define release_segments(mm) do { } while(0)
-
/*
* FPU lazy state save handling.
*/
diff --git a/arch/sh/include/asm/processor_64.h b/arch/sh/include/asm/processor_64.h
index eedd4f625d07..777a16318aff 100644
--- a/arch/sh/include/asm/processor_64.h
+++ b/arch/sh/include/asm/processor_64.h
@@ -170,10 +170,6 @@ struct mm_struct;
/* Free all resources held by a thread. */
extern void release_thread(struct task_struct *);
-/* Copy and release all segment info associated with a VM */
-#define copy_segments(p, mm) do { } while (0)
-#define release_segments(mm) do { } while (0)
-#define forget_segments() do { } while (0)
/*
* FPU lazy state save handling.
*/
diff --git a/arch/sh/include/asm/spinlock-cas.h b/arch/sh/include/asm/spinlock-cas.h
index c46e8cc7b515..5ed7dbbd94ff 100644
--- a/arch/sh/include/asm/spinlock-cas.h
+++ b/arch/sh/include/asm/spinlock-cas.h
@@ -29,11 +29,6 @@ static inline unsigned __sl_cas(volatile unsigned *p, unsigned old, unsigned new
#define arch_spin_is_locked(x) ((x)->lock <= 0)
#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- smp_cond_load_acquire(&lock->lock, VAL > 0);
-}
-
static inline void arch_spin_lock(arch_spinlock_t *lock)
{
while (!__sl_cas(&lock->lock, 1, 0));
diff --git a/arch/sh/include/asm/spinlock-llsc.h b/arch/sh/include/asm/spinlock-llsc.h
index cec78143fa83..f77263aae760 100644
--- a/arch/sh/include/asm/spinlock-llsc.h
+++ b/arch/sh/include/asm/spinlock-llsc.h
@@ -21,11 +21,6 @@
#define arch_spin_is_locked(x) ((x)->lock <= 0)
#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- smp_cond_load_acquire(&lock->lock, VAL > 0);
-}
-
/*
* Simple spin lock operations. There are two variants, one clears IRQ's
* on the local processor, one does not.
diff --git a/arch/sh/include/asm/stackprotector.h b/arch/sh/include/asm/stackprotector.h
index d9df3a76847c..141515a43b78 100644
--- a/arch/sh/include/asm/stackprotector.h
+++ b/arch/sh/include/asm/stackprotector.h
@@ -19,6 +19,7 @@ static __always_inline void boot_init_stack_canary(void)
/* Try to get a semi random initial value. */
get_random_bytes(&canary, sizeof(canary));
canary ^= LINUX_VERSION_CODE;
+ canary &= CANARY_MASK;
current->stack_canary = canary;
__stack_chk_guard = current->stack_canary;
diff --git a/arch/sh/include/asm/tlb.h b/arch/sh/include/asm/tlb.h
index 46e0d635e36f..51a8bc967e75 100644
--- a/arch/sh/include/asm/tlb.h
+++ b/arch/sh/include/asm/tlb.h
@@ -36,7 +36,8 @@ static inline void init_tlb_gather(struct mmu_gather *tlb)
}
static inline void
-tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
+arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
+ unsigned long start, unsigned long end)
{
tlb->mm = mm;
tlb->start = start;
@@ -47,9 +48,10 @@ tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start
}
static inline void
-tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
+arch_tlb_finish_mmu(struct mmu_gather *tlb,
+ unsigned long start, unsigned long end, bool force)
{
- if (tlb->fullmm)
+ if (tlb->fullmm || force)
flush_tlb_mm(tlb->mm);
/* keep the page table cache within bounds */
diff --git a/arch/sh/include/asm/uaccess.h b/arch/sh/include/asm/uaccess.h
index 2722b61b2283..211b44920dbe 100644
--- a/arch/sh/include/asm/uaccess.h
+++ b/arch/sh/include/asm/uaccess.h
@@ -100,7 +100,6 @@ struct __large_struct { unsigned long buf[100]; };
extern long strncpy_from_user(char *dest, const char __user *src, long count);
-extern __must_check long strlen_user(const char __user *str);
extern __must_check long strnlen_user(const char __user *str, long n);
/* Generic arbitrary sized copy. */
diff --git a/arch/sh/include/cpu-sh2a/cpu/sh7264.h b/arch/sh/include/cpu-sh2a/cpu/sh7264.h
index 4d1ef6d74bd6..2ae0e938b657 100644
--- a/arch/sh/include/cpu-sh2a/cpu/sh7264.h
+++ b/arch/sh/include/cpu-sh2a/cpu/sh7264.h
@@ -43,9 +43,7 @@ enum {
GPIO_PG7, GPIO_PG6, GPIO_PG5, GPIO_PG4,
GPIO_PG3, GPIO_PG2, GPIO_PG1, GPIO_PG0,
- /* Port H */
- GPIO_PH7, GPIO_PH6, GPIO_PH5, GPIO_PH4,
- GPIO_PH3, GPIO_PH2, GPIO_PH1, GPIO_PH0,
+ /* Port H - Port H does not have a Data Register */
/* Port I - not on device */
diff --git a/arch/sh/include/cpu-sh2a/cpu/sh7269.h b/arch/sh/include/cpu-sh2a/cpu/sh7269.h
index 2a0ca8780f0d..13c495a9fc00 100644
--- a/arch/sh/include/cpu-sh2a/cpu/sh7269.h
+++ b/arch/sh/include/cpu-sh2a/cpu/sh7269.h
@@ -45,9 +45,7 @@ enum {
GPIO_PG7, GPIO_PG6, GPIO_PG5, GPIO_PG4,
GPIO_PG3, GPIO_PG2, GPIO_PG1, GPIO_PG0,
- /* Port H */
- GPIO_PH7, GPIO_PH6, GPIO_PH5, GPIO_PH4,
- GPIO_PH3, GPIO_PH2, GPIO_PH1, GPIO_PH0,
+ /* Port H - Port H does not have a Data Register */
/* Port I - not on device */
diff --git a/arch/sh/include/cpu-sh4/cpu/sh7722.h b/arch/sh/include/cpu-sh4/cpu/sh7722.h
index 3bb74e534d0f..78961ab78a5a 100644
--- a/arch/sh/include/cpu-sh4/cpu/sh7722.h
+++ b/arch/sh/include/cpu-sh4/cpu/sh7722.h
@@ -67,7 +67,7 @@ enum {
GPIO_PTN3, GPIO_PTN2, GPIO_PTN1, GPIO_PTN0,
/* PTQ */
- GPIO_PTQ7, GPIO_PTQ6, GPIO_PTQ5, GPIO_PTQ4,
+ GPIO_PTQ6, GPIO_PTQ5, GPIO_PTQ4,
GPIO_PTQ3, GPIO_PTQ2, GPIO_PTQ1, GPIO_PTQ0,
/* PTR */
diff --git a/arch/sh/include/cpu-sh4/cpu/sh7757.h b/arch/sh/include/cpu-sh4/cpu/sh7757.h
index 5340f3bc1863..b40fb541e72a 100644
--- a/arch/sh/include/cpu-sh4/cpu/sh7757.h
+++ b/arch/sh/include/cpu-sh4/cpu/sh7757.h
@@ -40,7 +40,7 @@ enum {
/* PTJ */
GPIO_PTJ0, GPIO_PTJ1, GPIO_PTJ2, GPIO_PTJ3,
- GPIO_PTJ4, GPIO_PTJ5, GPIO_PTJ6, GPIO_PTJ7_RESV,
+ GPIO_PTJ4, GPIO_PTJ5, GPIO_PTJ6,
/* PTK */
GPIO_PTK0, GPIO_PTK1, GPIO_PTK2, GPIO_PTK3,
@@ -48,7 +48,7 @@ enum {
/* PTL */
GPIO_PTL0, GPIO_PTL1, GPIO_PTL2, GPIO_PTL3,
- GPIO_PTL4, GPIO_PTL5, GPIO_PTL6, GPIO_PTL7_RESV,
+ GPIO_PTL4, GPIO_PTL5, GPIO_PTL6,
/* PTM */
GPIO_PTM0, GPIO_PTM1, GPIO_PTM2, GPIO_PTM3,
@@ -56,7 +56,7 @@ enum {
/* PTN */
GPIO_PTN0, GPIO_PTN1, GPIO_PTN2, GPIO_PTN3,
- GPIO_PTN4, GPIO_PTN5, GPIO_PTN6, GPIO_PTN7_RESV,
+ GPIO_PTN4, GPIO_PTN5, GPIO_PTN6,
/* PTO */
GPIO_PTO0, GPIO_PTO1, GPIO_PTO2, GPIO_PTO3,
@@ -68,7 +68,7 @@ enum {
/* PTQ */
GPIO_PTQ0, GPIO_PTQ1, GPIO_PTQ2, GPIO_PTQ3,
- GPIO_PTQ4, GPIO_PTQ5, GPIO_PTQ6, GPIO_PTQ7_RESV,
+ GPIO_PTQ4, GPIO_PTQ5, GPIO_PTQ6,
/* PTR */
GPIO_PTR0, GPIO_PTR1, GPIO_PTR2, GPIO_PTR3,
diff --git a/arch/sh/include/uapi/asm/Kbuild b/arch/sh/include/uapi/asm/Kbuild
index b15bf6bc0e94..e28531333efa 100644
--- a/arch/sh/include/uapi/asm/Kbuild
+++ b/arch/sh/include/uapi/asm/Kbuild
@@ -1,2 +1,22 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
+generic-y += siginfo.h
+generic-y += socket.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += ucontext.h
diff --git a/arch/sh/include/uapi/asm/ioctls.h b/arch/sh/include/uapi/asm/ioctls.h
index c9903e56ccf4..787bac9f67da 100644
--- a/arch/sh/include/uapi/asm/ioctls.h
+++ b/arch/sh/include/uapi/asm/ioctls.h
@@ -93,6 +93,7 @@
#define TIOCGPKT _IOR('T', 0x38, int) /* Get packet mode state */
#define TIOCGPTLCK _IOR('T', 0x39, int) /* Get Pty lock state */
#define TIOCGEXCL _IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER _IO('T', 0x41) /* Safely open the slave */
#define TIOCSERCONFIG _IO('T', 83) /* 0x5453 */
#define TIOCSERGWILD _IOR('T', 84, int) /* 0x5454 */
diff --git a/arch/sh/kernel/ftrace.c b/arch/sh/kernel/ftrace.c
index 53783978162e..d18724d186f3 100644
--- a/arch/sh/kernel/ftrace.c
+++ b/arch/sh/kernel/ftrace.c
@@ -96,19 +96,6 @@ static int mod_code_status; /* holds return value of text write */
static void *mod_code_ip; /* holds the IP to write to */
static void *mod_code_newcode; /* holds the text to write to the IP */
-static unsigned nmi_wait_count;
-static atomic_t nmi_update_count = ATOMIC_INIT(0);
-
-int ftrace_arch_read_dyn_info(char *buf, int size)
-{
- int r;
-
- r = snprintf(buf, size, "%u %u",
- nmi_wait_count,
- atomic_read(&nmi_update_count));
- return r;
-}
-
static void clear_mod_flag(void)
{
int old = atomic_read(&nmi_running);
@@ -144,7 +131,6 @@ void arch_ftrace_nmi_enter(void)
if (atomic_inc_return(&nmi_running) & MOD_CODE_WRITE_FLAG) {
smp_rmb();
ftrace_mod_code();
- atomic_inc(&nmi_update_count);
}
/* Must have previous changes seen before executions */
smp_mb();
@@ -165,8 +151,6 @@ static void wait_for_nmi_and_set_mod_flag(void)
do {
cpu_relax();
} while (atomic_cmpxchg(&nmi_running, 0, MOD_CODE_WRITE_FLAG));
-
- nmi_wait_count++;
}
static void wait_for_nmi(void)
@@ -177,8 +161,6 @@ static void wait_for_nmi(void)
do {
cpu_relax();
} while (atomic_read(&nmi_running));
-
- nmi_wait_count++;
}
static int
diff --git a/arch/sh/kernel/vsyscall/Makefile b/arch/sh/kernel/vsyscall/Makefile
index 8f0ea5fc835c..6ab108f1a0c6 100644
--- a/arch/sh/kernel/vsyscall/Makefile
+++ b/arch/sh/kernel/vsyscall/Makefile
@@ -1,11 +1,11 @@
-obj-y += vsyscall.o vsyscall-syscall.o
+obj-y += vsyscall.o vsyscall-syscall.o vsyscall-syms.o
$(obj)/vsyscall-syscall.o: \
$(foreach F,trapa,$(obj)/vsyscall-$F.so)
# Teach kbuild about targets
targets += $(foreach F,trapa,vsyscall-$F.o vsyscall-$F.so)
-targets += vsyscall-note.o vsyscall.lds
+targets += vsyscall-note.o vsyscall.lds vsyscall-dummy.o
# The DSO images are built using a special linker script
quiet_cmd_syscall = SYSCALL $@
@@ -26,11 +26,11 @@ $(obj)/vsyscall-%.so: $(src)/vsyscall.lds $(obj)/vsyscall-%.o FORCE
# We also create a special relocatable object that should mirror the symbol
# table and layout of the linked DSO. With ld -R we can then refer to
# these symbols in the kernel code rather than hand-coded addresses.
-extra-y += vsyscall-syms.o
-$(obj)/built-in.o: $(obj)/vsyscall-syms.o
-$(obj)/built-in.o: ld_flags += -R $(obj)/vsyscall-syms.o
-
-SYSCFLAGS_vsyscall-syms.o = -r
-$(obj)/vsyscall-syms.o: $(src)/vsyscall.lds \
+SYSCFLAGS_vsyscall-dummy.o = -r
+$(obj)/vsyscall-dummy.o: $(src)/vsyscall.lds \
$(obj)/vsyscall-trapa.o $(obj)/vsyscall-note.o FORCE
$(call if_changed,syscall)
+
+LDFLAGS_vsyscall-syms.o := -r -R
+$(obj)/vsyscall-syms.o: $(obj)/vsyscall-dummy.o FORCE
+ $(call if_changed,ld)
diff --git a/arch/sh/mm/cache-sh5.c b/arch/sh/mm/cache-sh5.c
index d94dadedf74f..445b5e69b73c 100644
--- a/arch/sh/mm/cache-sh5.c
+++ b/arch/sh/mm/cache-sh5.c
@@ -234,7 +234,7 @@ static void sh64_icache_inv_current_user_range(unsigned long start, unsigned lon
#define DUMMY_ALLOCO_AREA_SIZE ((L1_CACHE_BYTES << 10) + (1024 * 4))
static unsigned char dummy_alloco_area[DUMMY_ALLOCO_AREA_SIZE] __cacheline_aligned = { 0, };
-static void inline sh64_dcache_purge_sets(int sets_to_purge_base, int n_sets)
+static inline void sh64_dcache_purge_sets(int sets_to_purge_base, int n_sets)
{
/* Purge all ways in a particular block of sets, specified by the base
set number and number of sets. Can handle wrap-around, if that's
diff --git a/arch/sh/mm/extable_64.c b/arch/sh/mm/extable_64.c
index b90cdfad2c78..7a3b4d33d2e7 100644
--- a/arch/sh/mm/extable_64.c
+++ b/arch/sh/mm/extable_64.c
@@ -10,6 +10,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
+#include <linux/bsearch.h>
#include <linux/rwsem.h>
#include <linux/extable.h>
#include <linux/uaccess.h>
@@ -40,10 +41,23 @@ static const struct exception_table_entry *check_exception_ranges(unsigned long
return NULL;
}
+static int cmp_ex_search(const void *key, const void *elt)
+{
+ const struct exception_table_entry *_elt = elt;
+ unsigned long _key = *(unsigned long *)key;
+
+ /* avoid overflow */
+ if (_key > _elt->insn)
+ return 1;
+ if (_key < _elt->insn)
+ return -1;
+ return 0;
+}
+
/* Simple binary search */
const struct exception_table_entry *
-search_extable(const struct exception_table_entry *first,
- const struct exception_table_entry *last,
+search_extable(const struct exception_table_entry *base,
+ const size_t num,
unsigned long value)
{
const struct exception_table_entry *mid;
@@ -52,20 +66,8 @@ search_extable(const struct exception_table_entry *first,
if (mid)
return mid;
- while (first <= last) {
- long diff;
-
- mid = (last - first) / 2 + first;
- diff = mid->insn - value;
- if (diff == 0)
- return mid;
- else if (diff < 0)
- first = mid+1;
- else
- last = mid-1;
- }
-
- return NULL;
+ return bsearch(&value, base, num,
+ sizeof(struct exception_table_entry), cmp_ex_search);
}
int fixup_exception(struct pt_regs *regs)
diff --git a/arch/sh/mm/hugetlbpage.c b/arch/sh/mm/hugetlbpage.c
index cc948db74878..d2412d2d6462 100644
--- a/arch/sh/mm/hugetlbpage.c
+++ b/arch/sh/mm/hugetlbpage.c
@@ -42,7 +42,8 @@ pte_t *huge_pte_alloc(struct mm_struct *mm,
return pte;
}
-pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
+pte_t *huge_pte_offset(struct mm_struct *mm,
+ unsigned long addr, unsigned long sz)
{
pgd_t *pgd;
pud_t *pud;
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 75491862d900..bf726af5f1a5 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -485,20 +485,14 @@ void free_initrd_mem(unsigned long start, unsigned long end)
#endif
#ifdef CONFIG_MEMORY_HOTPLUG
-int arch_add_memory(int nid, u64 start, u64 size, bool for_device)
+int arch_add_memory(int nid, u64 start, u64 size, bool want_memblock)
{
- pg_data_t *pgdat;
unsigned long start_pfn = PFN_DOWN(start);
unsigned long nr_pages = size >> PAGE_SHIFT;
int ret;
- pgdat = NODE_DATA(nid);
-
/* We only have ZONE_NORMAL, so this is easy.. */
- ret = __add_pages(nid, pgdat->node_zones +
- zone_for_memory(nid, start, size, ZONE_NORMAL,
- for_device),
- start_pfn, nr_pages);
+ ret = __add_pages(nid, start_pfn, nr_pages, want_memblock);
if (unlikely(ret))
printk("%s: Failed, __add_pages() == %d\n", __func__, ret);
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 5639c9fe5b55..4e83f950713e 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -44,7 +44,6 @@ config SPARC
select ARCH_HAS_SG_CHAIN
select CPU_NO_EFFICIENT_FFS
select LOCKDEP_SMALL if LOCKDEP
- select ARCH_WANT_RELAX_ORDER
config SPARC32
def_bool !64BIT
@@ -83,6 +82,8 @@ config SPARC64
select ARCH_SUPPORTS_ATOMIC_RMW
select HAVE_NMI
select HAVE_REGS_AND_STACK_ACCESS_API
+ select ARCH_USE_QUEUED_RWLOCKS
+ select ARCH_USE_QUEUED_SPINLOCKS
config ARCH_DEFCONFIG
string
@@ -92,6 +93,12 @@ config ARCH_DEFCONFIG
config ARCH_PROC_KCORE_TEXT
def_bool y
+config CPU_BIG_ENDIAN
+ def_bool y
+
+config CPU_BIG_ENDIAN
+ def_bool y
+
config ARCH_ATU
bool
default y if SPARC64
diff --git a/arch/sparc/configs/sparc32_defconfig b/arch/sparc/configs/sparc32_defconfig
index c74d3701ad68..207a43a2d8b3 100644
--- a/arch/sparc/configs/sparc32_defconfig
+++ b/arch/sparc/configs/sparc32_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_LOG_BUF_SHIFT=14
@@ -23,7 +22,6 @@ CONFIG_IP_PNP_DHCP=y
CONFIG_INET_AH=y
CONFIG_INET_ESP=y
CONFIG_INET_IPCOMP=y
-# CONFIG_INET_LRO is not set
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_IPCOMP=m
@@ -69,7 +67,6 @@ CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
-CONFIG_AUTOFS_FS=m
CONFIG_AUTOFS4_FS=m
CONFIG_ISO9660_FS=m
CONFIG_PROC_KCORE=y
@@ -82,7 +79,6 @@ CONFIG_NLS=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DETECT_HUNG_TASK=y
# CONFIG_SCHED_DEBUG is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_KGDB=y
CONFIG_KGDB_TESTS=y
CONFIG_CRYPTO_NULL=m
diff --git a/arch/sparc/configs/sparc64_defconfig b/arch/sparc/configs/sparc64_defconfig
index b2e650d1764f..4d4e1cc6402f 100644
--- a/arch/sparc/configs/sparc64_defconfig
+++ b/arch/sparc/configs/sparc64_defconfig
@@ -1,5 +1,4 @@
CONFIG_64BIT=y
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -184,7 +183,6 @@ CONFIG_HID_TOPSEED=y
CONFIG_HID_THRUSTMASTER=y
CONFIG_HID_ZEROPLUS=y
CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_EHCI_HCD=m
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
CONFIG_USB_OHCI_HCD=y
@@ -210,8 +208,6 @@ CONFIG_LOCKUP_DETECTOR=y
CONFIG_DETECT_HUNG_TASK=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_SCHEDSTATS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_UPROBE_EVENTS=y
CONFIG_KEYS=y
@@ -242,3 +238,4 @@ CONFIG_CRYPTO_TWOFISH=m
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRC16=m
CONFIG_LIBCRC32C=m
+CONFIG_VCC=m
diff --git a/arch/sparc/crypto/aes_glue.c b/arch/sparc/crypto/aes_glue.c
index c90930de76ba..3cd4f6b198b6 100644
--- a/arch/sparc/crypto/aes_glue.c
+++ b/arch/sparc/crypto/aes_glue.c
@@ -344,8 +344,7 @@ static void ctr_crypt_final(struct crypto_sparc64_aes_ctx *ctx,
ctx->ops->ecb_encrypt(&ctx->key[0], (const u64 *)ctrblk,
keystream, AES_BLOCK_SIZE);
- crypto_xor((u8 *) keystream, src, nbytes);
- memcpy(dst, keystream, nbytes);
+ crypto_xor_cpy(dst, (u8 *) keystream, src, nbytes);
crypto_inc(ctrblk, AES_BLOCK_SIZE);
}
diff --git a/arch/sparc/include/asm/Kbuild b/arch/sparc/include/asm/Kbuild
index e9e837bc3158..80ddc01f57ac 100644
--- a/arch/sparc/include/asm/Kbuild
+++ b/arch/sparc/include/asm/Kbuild
@@ -18,5 +18,4 @@ generic-y += preempt.h
generic-y += rwsem.h
generic-y += serial.h
generic-y += trace_clock.h
-generic-y += types.h
generic-y += word-at-a-time.h
diff --git a/arch/sparc/include/asm/asm-prototypes.h b/arch/sparc/include/asm/asm-prototypes.h
new file mode 100644
index 000000000000..d381e11c5dbb
--- /dev/null
+++ b/arch/sparc/include/asm/asm-prototypes.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2017 Oracle and/or its affiliates. All rights reserved.
+ */
+
+#include <asm/xor.h>
+#include <asm/checksum.h>
+#include <asm/trap_block.h>
+#include <asm/uaccess.h>
+#include <asm/atomic.h>
+#include <asm/ftrace.h>
+#include <asm/cacheflush.h>
+#include <asm/oplib.h>
+#include <linux/atomic.h>
+
+void *__memscan_zero(void *, size_t);
+void *__memscan_generic(void *, int, size_t);
+void *__bzero(void *, size_t);
+void VISenter(void); /* Dummy prototype to supress warning */
+#undef memcpy
+#undef memset
+void *memcpy(void *dest, const void *src, size_t n);
+void *memset(void *s, int c, size_t n);
+typedef int TItype __attribute__((mode(TI)));
+TItype __multi3(TItype a, TItype b);
diff --git a/arch/sparc/include/asm/atomic_32.h b/arch/sparc/include/asm/atomic_32.h
index ee3f11c43cda..7643e979e333 100644
--- a/arch/sparc/include/asm/atomic_32.h
+++ b/arch/sparc/include/asm/atomic_32.h
@@ -29,6 +29,8 @@ int atomic_xchg(atomic_t *, int);
int __atomic_add_unless(atomic_t *, int, int);
void atomic_set(atomic_t *, int);
+#define atomic_set_release(v, i) atomic_set((v), (i))
+
#define atomic_read(v) ACCESS_ONCE((v)->counter)
#define atomic_add(i, v) ((void)atomic_add_return( (int)(i), (v)))
diff --git a/arch/sparc/include/asm/cmpxchg_64.h b/arch/sparc/include/asm/cmpxchg_64.h
index faa2f61058c2..4028f4f1e561 100644
--- a/arch/sparc/include/asm/cmpxchg_64.h
+++ b/arch/sparc/include/asm/cmpxchg_64.h
@@ -6,6 +6,17 @@
#ifndef __ARCH_SPARC64_CMPXCHG__
#define __ARCH_SPARC64_CMPXCHG__
+static inline unsigned long
+__cmpxchg_u32(volatile int *m, int old, int new)
+{
+ __asm__ __volatile__("cas [%2], %3, %0"
+ : "=&r" (new)
+ : "0" (new), "r" (m), "r" (old)
+ : "memory");
+
+ return new;
+}
+
static inline unsigned long xchg32(__volatile__ unsigned int *m, unsigned int val)
{
unsigned long tmp1, tmp2;
@@ -44,10 +55,38 @@ static inline unsigned long xchg64(__volatile__ unsigned long *m, unsigned long
void __xchg_called_with_bad_pointer(void);
+/*
+ * Use 4 byte cas instruction to achieve 2 byte xchg. Main logic
+ * here is to get the bit shift of the byte we are interested in.
+ * The XOR is handy for reversing the bits for big-endian byte order.
+ */
+static inline unsigned long
+xchg16(__volatile__ unsigned short *m, unsigned short val)
+{
+ unsigned long maddr = (unsigned long)m;
+ int bit_shift = (((unsigned long)m & 2) ^ 2) << 3;
+ unsigned int mask = 0xffff << bit_shift;
+ unsigned int *ptr = (unsigned int *) (maddr & ~2);
+ unsigned int old32, new32, load32;
+
+ /* Read the old value */
+ load32 = *ptr;
+
+ do {
+ old32 = load32;
+ new32 = (load32 & (~mask)) | val << bit_shift;
+ load32 = __cmpxchg_u32(ptr, old32, new32);
+ } while (load32 != old32);
+
+ return (load32 & mask) >> bit_shift;
+}
+
static inline unsigned long __xchg(unsigned long x, __volatile__ void * ptr,
int size)
{
switch (size) {
+ case 2:
+ return xchg16(ptr, x);
case 4:
return xchg32(ptr, x);
case 8:
@@ -65,10 +104,11 @@ static inline unsigned long __xchg(unsigned long x, __volatile__ void * ptr,
#include <asm-generic/cmpxchg-local.h>
+
static inline unsigned long
-__cmpxchg_u32(volatile int *m, int old, int new)
+__cmpxchg_u64(volatile long *m, unsigned long old, unsigned long new)
{
- __asm__ __volatile__("cas [%2], %3, %0"
+ __asm__ __volatile__("casx [%2], %3, %0"
: "=&r" (new)
: "0" (new), "r" (m), "r" (old)
: "memory");
@@ -76,15 +116,31 @@ __cmpxchg_u32(volatile int *m, int old, int new)
return new;
}
+/*
+ * Use 4 byte cas instruction to achieve 1 byte cmpxchg. Main logic
+ * here is to get the bit shift of the byte we are interested in.
+ * The XOR is handy for reversing the bits for big-endian byte order
+ */
static inline unsigned long
-__cmpxchg_u64(volatile long *m, unsigned long old, unsigned long new)
+__cmpxchg_u8(volatile unsigned char *m, unsigned char old, unsigned char new)
{
- __asm__ __volatile__("casx [%2], %3, %0"
- : "=&r" (new)
- : "0" (new), "r" (m), "r" (old)
- : "memory");
-
- return new;
+ unsigned long maddr = (unsigned long)m;
+ int bit_shift = (((unsigned long)m & 3) ^ 3) << 3;
+ unsigned int mask = 0xff << bit_shift;
+ unsigned int *ptr = (unsigned int *) (maddr & ~3);
+ unsigned int old32, new32, load;
+ unsigned int load32 = *ptr;
+
+ do {
+ new32 = (load32 & ~mask) | (new << bit_shift);
+ old32 = (load32 & ~mask) | (old << bit_shift);
+ load32 = __cmpxchg_u32(ptr, old32, new32);
+ if (load32 == old32)
+ return old;
+ load = (load32 & mask) >> bit_shift;
+ } while (load == old);
+
+ return load;
}
/* This function doesn't exist, so you'll get a linker error
@@ -95,6 +151,8 @@ static inline unsigned long
__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
{
switch (size) {
+ case 1:
+ return __cmpxchg_u8(ptr, old, new);
case 4:
return __cmpxchg_u32(ptr, old, new);
case 8:
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 69cc627779f2..60bf1633d554 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -5,11 +5,6 @@
#include <linux/mm.h>
#include <linux/dma-debug.h>
-#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-
-#define HAVE_ARCH_DMA_SUPPORTED 1
-int dma_supported(struct device *dev, u64 mask);
-
static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction dir)
{
@@ -19,7 +14,6 @@ static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
}
extern const struct dma_map_ops *dma_ops;
-extern const struct dma_map_ops *leon_dma_ops;
extern const struct dma_map_ops pci32_dma_ops;
extern struct bus_type pci_bus_type;
@@ -28,7 +22,7 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
#ifdef CONFIG_SPARC_LEON
if (sparc_cpu_model == sparc_leon)
- return leon_dma_ops;
+ return &pci32_dma_ops;
#endif
#if defined(CONFIG_SPARC32) && defined(CONFIG_PCI)
if (bus == &pci_bus_type)
diff --git a/arch/sparc/include/asm/futex_64.h b/arch/sparc/include/asm/futex_64.h
index 4e899b0dabf7..1cfd89d92208 100644
--- a/arch/sparc/include/asm/futex_64.h
+++ b/arch/sparc/include/asm/futex_64.h
@@ -29,22 +29,14 @@
: "r" (uaddr), "r" (oparg), "i" (-EFAULT) \
: "memory")
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+ u32 __user *uaddr)
{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
int oldval = 0, ret, tem;
- if (unlikely(!access_ok(VERIFY_WRITE, uaddr, sizeof(u32))))
- return -EFAULT;
if (unlikely((((unsigned long) uaddr) & 0x3UL)))
return -EINVAL;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
pagefault_disable();
switch (op) {
@@ -69,17 +61,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
pagefault_enable();
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
- case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
- case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
- case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
- case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
- case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
- default: ret = -ENOSYS;
- }
- }
+ if (!ret)
+ *oval = oldval;
+
return ret;
}
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index d1f837dc77a4..0ca7caab1b06 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -4,6 +4,13 @@
#include <asm/page.h>
#include <asm-generic/hugetlb.h>
+#ifdef CONFIG_HUGETLB_PAGE
+struct pud_huge_patch_entry {
+ unsigned int addr;
+ unsigned int insn;
+};
+extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
+#endif
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte);
diff --git a/arch/sparc/include/asm/hypervisor.h b/arch/sparc/include/asm/hypervisor.h
index 73cb8978df58..3dc9215d0357 100644
--- a/arch/sparc/include/asm/hypervisor.h
+++ b/arch/sparc/include/asm/hypervisor.h
@@ -298,6 +298,24 @@ unsigned long sun4v_cpu_stop(unsigned long cpuid);
unsigned long sun4v_cpu_yield(void);
#endif
+/* cpu_poke()
+ * TRAP: HV_FAST_TRAP
+ * FUNCTION: HV_FAST_CPU_POKE
+ * RET0: status
+ * ERRORS: ENOCPU cpuid refers to a CPU that does not exist
+ * EINVAL cpuid is current CPU
+ *
+ * Poke CPU cpuid. If the target CPU is currently suspended having
+ * invoked the cpu-yield service, that vCPU will be resumed.
+ * Poke interrupts may only be sent to valid, non-local CPUs.
+ * It is not legal to poke the current vCPU.
+ */
+#define HV_FAST_CPU_POKE 0x13
+
+#ifndef __ASSEMBLY__
+unsigned long sun4v_cpu_poke(unsigned long cpuid);
+#endif
+
/* cpu_qconf()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_CPU_QCONF
diff --git a/arch/sparc/include/asm/ldc.h b/arch/sparc/include/asm/ldc.h
index 6e9004aa6f25..698738a10414 100644
--- a/arch/sparc/include/asm/ldc.h
+++ b/arch/sparc/include/asm/ldc.h
@@ -48,6 +48,8 @@ struct ldc_channel_config {
#define LDC_STATE_READY 0x03
#define LDC_STATE_CONNECTED 0x04
+#define LDC_PACKET_SIZE 64
+
struct ldc_channel;
/* Allocate state for a channel. */
@@ -72,6 +74,12 @@ int ldc_connect(struct ldc_channel *lp);
int ldc_disconnect(struct ldc_channel *lp);
int ldc_state(struct ldc_channel *lp);
+void ldc_set_state(struct ldc_channel *lp, u8 state);
+int ldc_mode(struct ldc_channel *lp);
+void __ldc_print(struct ldc_channel *lp, const char *caller);
+int ldc_rx_reset(struct ldc_channel *lp);
+
+#define ldc_print(chan) __ldc_print(chan, __func__)
/* Read and write operations. Only valid when the link is up. */
int ldc_write(struct ldc_channel *lp, const void *buf,
diff --git a/arch/sparc/include/asm/mdesc.h b/arch/sparc/include/asm/mdesc.h
index aebeb88f70db..e8a4c413a1c7 100644
--- a/arch/sparc/include/asm/mdesc.h
+++ b/arch/sparc/include/asm/mdesc.h
@@ -16,6 +16,7 @@ struct mdesc_handle *mdesc_grab(void);
void mdesc_release(struct mdesc_handle *);
#define MDESC_NODE_NULL (~(u64)0)
+#define MDESC_MAX_STR_LEN 256
u64 mdesc_node_by_name(struct mdesc_handle *handle,
u64 from_node, const char *name);
@@ -62,15 +63,32 @@ u64 mdesc_arc_target(struct mdesc_handle *hp, u64 arc);
void mdesc_update(void);
struct mdesc_notifier_client {
- void (*add)(struct mdesc_handle *handle, u64 node);
- void (*remove)(struct mdesc_handle *handle, u64 node);
-
+ void (*add)(struct mdesc_handle *handle, u64 node,
+ const char *node_name);
+ void (*remove)(struct mdesc_handle *handle, u64 node,
+ const char *node_name);
const char *node_name;
struct mdesc_notifier_client *next;
};
void mdesc_register_notifier(struct mdesc_notifier_client *client);
+union md_node_info {
+ struct vdev_port {
+ u64 id; /* id */
+ u64 parent_cfg_hdl; /* parent config handle */
+ const char *name; /* name (property) */
+ } vdev_port;
+ struct ds_port {
+ u64 id; /* id */
+ } ds_port;
+};
+
+u64 mdesc_get_node(struct mdesc_handle *hp, const char *node_name,
+ union md_node_info *node_info);
+int mdesc_get_node_info(struct mdesc_handle *hp, u64 node,
+ const char *node_name, union md_node_info *node_info);
+
void mdesc_fill_in_cpu_data(cpumask_t *mask);
void mdesc_populate_present_mask(cpumask_t *mask);
void mdesc_get_page_sizes(cpumask_t *mask, unsigned long *pgsz_mask);
diff --git a/arch/sparc/include/asm/mmu_context_64.h b/arch/sparc/include/asm/mmu_context_64.h
index 2cddcda4f85f..87841d687f8d 100644
--- a/arch/sparc/include/asm/mmu_context_64.h
+++ b/arch/sparc/include/asm/mmu_context_64.h
@@ -27,9 +27,11 @@ void destroy_context(struct mm_struct *mm);
void __tsb_context_switch(unsigned long pgd_pa,
struct tsb_config *tsb_base,
struct tsb_config *tsb_huge,
- unsigned long tsb_descr_pa);
+ unsigned long tsb_descr_pa,
+ unsigned long secondary_ctx);
-static inline void tsb_context_switch(struct mm_struct *mm)
+static inline void tsb_context_switch_ctx(struct mm_struct *mm,
+ unsigned long ctx)
{
__tsb_context_switch(__pa(mm->pgd),
&mm->context.tsb_block[MM_TSB_BASE],
@@ -40,9 +42,12 @@ static inline void tsb_context_switch(struct mm_struct *mm)
#else
NULL
#endif
- , __pa(&mm->context.tsb_descr[MM_TSB_BASE]));
+ , __pa(&mm->context.tsb_descr[MM_TSB_BASE]),
+ ctx);
}
+#define tsb_context_switch(X) tsb_context_switch_ctx(X, 0)
+
void tsb_grow(struct mm_struct *mm,
unsigned long tsb_index,
unsigned long mm_rss);
@@ -112,8 +117,7 @@ static inline void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm, str
* cpu0 to update it's TSB because at that point the cpu_vm_mask
* only had cpu1 set in it.
*/
- load_secondary_context(mm);
- tsb_context_switch(mm);
+ tsb_context_switch_ctx(mm, CTX_HWBITS(mm->context));
/* Any time a processor runs a context on an address space
* for the first time, we must flush that context out of the
diff --git a/arch/sparc/include/asm/nmi.h b/arch/sparc/include/asm/nmi.h
index 26ad2b2607c6..284eac3ffaf2 100644
--- a/arch/sparc/include/asm/nmi.h
+++ b/arch/sparc/include/asm/nmi.h
@@ -7,6 +7,7 @@ void nmi_adjust_hz(unsigned int new_hz);
extern atomic_t nmi_active;
+void arch_touch_nmi_watchdog(void);
void start_nmi_watchdog(void *unused);
void stop_nmi_watchdog(void *unused);
diff --git a/arch/sparc/include/asm/page_32.h b/arch/sparc/include/asm/page_32.h
index 0efd0583a8c9..6249214148c2 100644
--- a/arch/sparc/include/asm/page_32.h
+++ b/arch/sparc/include/asm/page_32.h
@@ -68,6 +68,7 @@ typedef struct { unsigned long iopgprot; } iopgprot_t;
#define iopgprot_val(x) ((x).iopgprot)
#define __pte(x) ((pte_t) { (x) } )
+#define __pmd(x) ((pmd_t) { { (x) }, })
#define __iopte(x) ((iopte_t) { (x) } )
#define __pgd(x) ((pgd_t) { (x) } )
#define __ctxd(x) ((ctxd_t) { (x) } )
@@ -95,6 +96,7 @@ typedef unsigned long iopgprot_t;
#define iopgprot_val(x) (x)
#define __pte(x) (x)
+#define __pmd(x) ((pmd_t) { { (x) }, })
#define __iopte(x) (x)
#define __pgd(x) (x)
#define __ctxd(x) (x)
diff --git a/arch/sparc/include/asm/page_64.h b/arch/sparc/include/asm/page_64.h
index 5961b2d8398a..8ee1f97589a1 100644
--- a/arch/sparc/include/asm/page_64.h
+++ b/arch/sparc/include/asm/page_64.h
@@ -17,6 +17,7 @@
#define HPAGE_SHIFT 23
#define REAL_HPAGE_SHIFT 22
+#define HPAGE_16GB_SHIFT 34
#define HPAGE_2GB_SHIFT 31
#define HPAGE_256MB_SHIFT 28
#define HPAGE_64K_SHIFT 16
@@ -28,7 +29,7 @@
#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
#define REAL_HPAGE_PER_HPAGE (_AC(1,UL) << (HPAGE_SHIFT - REAL_HPAGE_SHIFT))
-#define HUGE_MAX_HSTATE 4
+#define HUGE_MAX_HSTATE 5
#endif
#ifndef __ASSEMBLY__
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index 6fbd931f0570..4fefe3762083 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -414,6 +414,11 @@ static inline bool is_hugetlb_pmd(pmd_t pmd)
return !!(pmd_val(pmd) & _PAGE_PMD_HUGE);
}
+static inline bool is_hugetlb_pud(pud_t pud)
+{
+ return !!(pud_val(pud) & _PAGE_PUD_HUGE);
+}
+
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
static inline pmd_t pmd_mkhuge(pmd_t pmd)
{
@@ -687,6 +692,8 @@ static inline unsigned long pmd_write(pmd_t pmd)
return pte_write(pte);
}
+#define pud_write(pud) pte_write(__pte(pud_val(pud)))
+
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
static inline unsigned long pmd_dirty(pmd_t pmd)
{
@@ -823,9 +830,18 @@ static inline unsigned long __pmd_page(pmd_t pmd)
return ((unsigned long) __va(pfn << PAGE_SHIFT));
}
+
+static inline unsigned long pud_page_vaddr(pud_t pud)
+{
+ pte_t pte = __pte(pud_val(pud));
+ unsigned long pfn;
+
+ pfn = pte_pfn(pte);
+
+ return ((unsigned long) __va(pfn << PAGE_SHIFT));
+}
+
#define pmd_page(pmd) virt_to_page((void *)__pmd_page(pmd))
-#define pud_page_vaddr(pud) \
- ((unsigned long) __va(pud_val(pud)))
#define pud_page(pud) virt_to_page((void *)pud_page_vaddr(pud))
#define pmd_clear(pmdp) (pmd_val(*(pmdp)) = 0UL)
#define pud_present(pud) (pud_val(pud) != 0U)
diff --git a/arch/sparc/include/asm/qrwlock.h b/arch/sparc/include/asm/qrwlock.h
new file mode 100644
index 000000000000..d68a4b102100
--- /dev/null
+++ b/arch/sparc/include/asm/qrwlock.h
@@ -0,0 +1,7 @@
+#ifndef _ASM_SPARC_QRWLOCK_H
+#define _ASM_SPARC_QRWLOCK_H
+
+#include <asm-generic/qrwlock_types.h>
+#include <asm-generic/qrwlock.h>
+
+#endif /* _ASM_SPARC_QRWLOCK_H */
diff --git a/arch/sparc/include/asm/qspinlock.h b/arch/sparc/include/asm/qspinlock.h
new file mode 100644
index 000000000000..5ae9a2802846
--- /dev/null
+++ b/arch/sparc/include/asm/qspinlock.h
@@ -0,0 +1,7 @@
+#ifndef _ASM_SPARC_QSPINLOCK_H
+#define _ASM_SPARC_QSPINLOCK_H
+
+#include <asm-generic/qspinlock_types.h>
+#include <asm-generic/qspinlock.h>
+
+#endif /* _ASM_SPARC_QSPINLOCK_H */
diff --git a/arch/sparc/include/asm/setup.h b/arch/sparc/include/asm/setup.h
index 3fae200dd251..8b32538084f7 100644
--- a/arch/sparc/include/asm/setup.h
+++ b/arch/sparc/include/asm/setup.h
@@ -1,5 +1,5 @@
/*
- * Just a place holder.
+ * Just a place holder.
*/
#ifndef _SPARC_SETUP_H
#define _SPARC_SETUP_H
diff --git a/arch/sparc/include/asm/siginfo.h b/arch/sparc/include/asm/siginfo.h
deleted file mode 100644
index 48c34c19f810..000000000000
--- a/arch/sparc/include/asm/siginfo.h
+++ /dev/null
@@ -1,13 +0,0 @@
-#ifndef __SPARC_SIGINFO_H
-#define __SPARC_SIGINFO_H
-
-#include <uapi/asm/siginfo.h>
-
-
-#ifdef CONFIG_COMPAT
-
-struct compat_siginfo;
-
-#endif /* CONFIG_COMPAT */
-
-#endif /* !(__SPARC_SIGINFO_H) */
diff --git a/arch/sparc/include/asm/smp_64.h b/arch/sparc/include/asm/smp_64.h
index ce2233f7e662..a75089285db8 100644
--- a/arch/sparc/include/asm/smp_64.h
+++ b/arch/sparc/include/asm/smp_64.h
@@ -33,6 +33,9 @@
DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
extern cpumask_t cpu_core_map[NR_CPUS];
+void smp_init_cpu_poke(void);
+void scheduler_poke(void);
+
void arch_send_call_function_single_ipi(int cpu);
void arch_send_call_function_ipi_mask(const struct cpumask *mask);
@@ -74,6 +77,8 @@ void __cpu_die(unsigned int cpu);
#define smp_fetch_global_regs() do { } while (0)
#define smp_fetch_global_pmu() do { } while (0)
#define smp_fill_in_cpu_possible_map() do { } while (0)
+#define smp_init_cpu_poke() do { } while (0)
+#define scheduler_poke() do { } while (0)
#endif /* !(CONFIG_SMP) */
diff --git a/arch/sparc/include/asm/spinlock_32.h b/arch/sparc/include/asm/spinlock_32.h
index 8011e79f59c9..67345b2dc408 100644
--- a/arch/sparc/include/asm/spinlock_32.h
+++ b/arch/sparc/include/asm/spinlock_32.h
@@ -14,11 +14,6 @@
#define arch_spin_is_locked(lock) (*((volatile unsigned char *)(lock)) != 0)
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- smp_cond_load_acquire(&lock->lock, !VAL);
-}
-
static inline void arch_spin_lock(arch_spinlock_t *lock)
{
__asm__ __volatile__(
diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h
index 07c9f2e9bf57..f7028f5e1a5a 100644
--- a/arch/sparc/include/asm/spinlock_64.h
+++ b/arch/sparc/include/asm/spinlock_64.h
@@ -10,216 +10,12 @@
#include <asm/processor.h>
#include <asm/barrier.h>
-
-/* To get debugging spinlocks which detect and catch
- * deadlock situations, set CONFIG_DEBUG_SPINLOCK
- * and rebuild your kernel.
- */
-
-/* Because we play games to save cycles in the non-contention case, we
- * need to be extra careful about branch targets into the "spinning"
- * code. They live in their own section, but the newer V9 branches
- * have a shorter range than the traditional 32-bit sparc branch
- * variants. The rule is that the branches that go into and out of
- * the spinner sections must be pre-V9 branches.
- */
-
-#define arch_spin_is_locked(lp) ((lp)->lock != 0)
-
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- smp_cond_load_acquire(&lock->lock, !VAL);
-}
-
-static inline void arch_spin_lock(arch_spinlock_t *lock)
-{
- unsigned long tmp;
-
- __asm__ __volatile__(
-"1: ldstub [%1], %0\n"
-" brnz,pn %0, 2f\n"
-" nop\n"
-" .subsection 2\n"
-"2: ldub [%1], %0\n"
-" brnz,pt %0, 2b\n"
-" nop\n"
-" ba,a,pt %%xcc, 1b\n"
-" .previous"
- : "=&r" (tmp)
- : "r" (lock)
- : "memory");
-}
-
-static inline int arch_spin_trylock(arch_spinlock_t *lock)
-{
- unsigned long result;
-
- __asm__ __volatile__(
-" ldstub [%1], %0\n"
- : "=r" (result)
- : "r" (lock)
- : "memory");
-
- return (result == 0UL);
-}
-
-static inline void arch_spin_unlock(arch_spinlock_t *lock)
-{
- __asm__ __volatile__(
-" stb %%g0, [%0]"
- : /* No outputs */
- : "r" (lock)
- : "memory");
-}
-
-static inline void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags)
-{
- unsigned long tmp1, tmp2;
-
- __asm__ __volatile__(
-"1: ldstub [%2], %0\n"
-" brnz,pn %0, 2f\n"
-" nop\n"
-" .subsection 2\n"
-"2: rdpr %%pil, %1\n"
-" wrpr %3, %%pil\n"
-"3: ldub [%2], %0\n"
-" brnz,pt %0, 3b\n"
-" nop\n"
-" ba,pt %%xcc, 1b\n"
-" wrpr %1, %%pil\n"
-" .previous"
- : "=&r" (tmp1), "=&r" (tmp2)
- : "r"(lock), "r"(flags)
- : "memory");
-}
-
-/* Multi-reader locks, these are much saner than the 32-bit Sparc ones... */
-
-static inline void arch_read_lock(arch_rwlock_t *lock)
-{
- unsigned long tmp1, tmp2;
-
- __asm__ __volatile__ (
-"1: ldsw [%2], %0\n"
-" brlz,pn %0, 2f\n"
-"4: add %0, 1, %1\n"
-" cas [%2], %0, %1\n"
-" cmp %0, %1\n"
-" bne,pn %%icc, 1b\n"
-" nop\n"
-" .subsection 2\n"
-"2: ldsw [%2], %0\n"
-" brlz,pt %0, 2b\n"
-" nop\n"
-" ba,a,pt %%xcc, 4b\n"
-" .previous"
- : "=&r" (tmp1), "=&r" (tmp2)
- : "r" (lock)
- : "memory");
-}
-
-static inline int arch_read_trylock(arch_rwlock_t *lock)
-{
- int tmp1, tmp2;
-
- __asm__ __volatile__ (
-"1: ldsw [%2], %0\n"
-" brlz,a,pn %0, 2f\n"
-" mov 0, %0\n"
-" add %0, 1, %1\n"
-" cas [%2], %0, %1\n"
-" cmp %0, %1\n"
-" bne,pn %%icc, 1b\n"
-" mov 1, %0\n"
-"2:"
- : "=&r" (tmp1), "=&r" (tmp2)
- : "r" (lock)
- : "memory");
-
- return tmp1;
-}
-
-static inline void arch_read_unlock(arch_rwlock_t *lock)
-{
- unsigned long tmp1, tmp2;
-
- __asm__ __volatile__(
-"1: lduw [%2], %0\n"
-" sub %0, 1, %1\n"
-" cas [%2], %0, %1\n"
-" cmp %0, %1\n"
-" bne,pn %%xcc, 1b\n"
-" nop"
- : "=&r" (tmp1), "=&r" (tmp2)
- : "r" (lock)
- : "memory");
-}
-
-static inline void arch_write_lock(arch_rwlock_t *lock)
-{
- unsigned long mask, tmp1, tmp2;
-
- mask = 0x80000000UL;
-
- __asm__ __volatile__(
-"1: lduw [%2], %0\n"
-" brnz,pn %0, 2f\n"
-"4: or %0, %3, %1\n"
-" cas [%2], %0, %1\n"
-" cmp %0, %1\n"
-" bne,pn %%icc, 1b\n"
-" nop\n"
-" .subsection 2\n"
-"2: lduw [%2], %0\n"
-" brnz,pt %0, 2b\n"
-" nop\n"
-" ba,a,pt %%xcc, 4b\n"
-" .previous"
- : "=&r" (tmp1), "=&r" (tmp2)
- : "r" (lock), "r" (mask)
- : "memory");
-}
-
-static inline void arch_write_unlock(arch_rwlock_t *lock)
-{
- __asm__ __volatile__(
-" stw %%g0, [%0]"
- : /* no outputs */
- : "r" (lock)
- : "memory");
-}
-
-static inline int arch_write_trylock(arch_rwlock_t *lock)
-{
- unsigned long mask, tmp1, tmp2, result;
-
- mask = 0x80000000UL;
-
- __asm__ __volatile__(
-" mov 0, %2\n"
-"1: lduw [%3], %0\n"
-" brnz,pn %0, 2f\n"
-" or %0, %4, %1\n"
-" cas [%3], %0, %1\n"
-" cmp %0, %1\n"
-" bne,pn %%icc, 1b\n"
-" nop\n"
-" mov 1, %2\n"
-"2:"
- : "=&r" (tmp1), "=&r" (tmp2), "=&r" (result)
- : "r" (lock), "r" (mask)
- : "memory");
-
- return result;
-}
+#include <asm/qrwlock.h>
+#include <asm/qspinlock.h>
#define arch_read_lock_flags(p, f) arch_read_lock(p)
#define arch_write_lock_flags(p, f) arch_write_lock(p)
-#define arch_read_can_lock(rw) (!((rw)->lock & 0x80000000UL))
-#define arch_write_can_lock(rw) (!(rw)->lock)
-
#define arch_spin_relax(lock) cpu_relax()
#define arch_read_relax(lock) cpu_relax()
#define arch_write_relax(lock) cpu_relax()
diff --git a/arch/sparc/include/asm/spinlock_types.h b/arch/sparc/include/asm/spinlock_types.h
index 9c454fdeaad8..bce8ef44dfa9 100644
--- a/arch/sparc/include/asm/spinlock_types.h
+++ b/arch/sparc/include/asm/spinlock_types.h
@@ -1,20 +1,24 @@
#ifndef __SPARC_SPINLOCK_TYPES_H
#define __SPARC_SPINLOCK_TYPES_H
-#ifndef __LINUX_SPINLOCK_TYPES_H
-# error "please don't include this file directly"
-#endif
+#ifdef CONFIG_QUEUED_SPINLOCKS
+#include <asm-generic/qspinlock_types.h>
+#else
typedef struct {
volatile unsigned char lock;
} arch_spinlock_t;
#define __ARCH_SPIN_LOCK_UNLOCKED { 0 }
+#endif /* CONFIG_QUEUED_SPINLOCKS */
+#ifdef CONFIG_QUEUED_RWLOCKS
+#include <asm-generic/qrwlock_types.h>
+#else
typedef struct {
volatile unsigned int lock;
} arch_rwlock_t;
#define __ARCH_RW_LOCK_UNLOCKED { 0 }
-
+#endif /* CONFIG_QUEUED_RWLOCKS */
#endif
diff --git a/arch/sparc/include/asm/spitfire.h b/arch/sparc/include/asm/spitfire.h
index 1d8321c827a8..1b1286d05069 100644
--- a/arch/sparc/include/asm/spitfire.h
+++ b/arch/sparc/include/asm/spitfire.h
@@ -47,10 +47,26 @@
#define SUN4V_CHIP_NIAGARA5 0x05
#define SUN4V_CHIP_SPARC_M6 0x06
#define SUN4V_CHIP_SPARC_M7 0x07
+#define SUN4V_CHIP_SPARC_M8 0x08
#define SUN4V_CHIP_SPARC64X 0x8a
#define SUN4V_CHIP_SPARC_SN 0x8b
#define SUN4V_CHIP_UNKNOWN 0xff
+/*
+ * The following CPU_ID_xxx constants are used
+ * to identify the CPU type in the setup phase
+ * (see head_64.S)
+ */
+#define CPU_ID_NIAGARA1 ('1')
+#define CPU_ID_NIAGARA2 ('2')
+#define CPU_ID_NIAGARA3 ('3')
+#define CPU_ID_NIAGARA4 ('4')
+#define CPU_ID_NIAGARA5 ('5')
+#define CPU_ID_M6 ('6')
+#define CPU_ID_M7 ('7')
+#define CPU_ID_M8 ('8')
+#define CPU_ID_SONOMA1 ('N')
+
#ifndef __ASSEMBLY__
enum ultra_tlb_layout {
diff --git a/arch/sparc/include/asm/timer_64.h b/arch/sparc/include/asm/timer_64.h
index fce415034000..51bc3bc54bfe 100644
--- a/arch/sparc/include/asm/timer_64.h
+++ b/arch/sparc/include/asm/timer_64.h
@@ -9,7 +9,12 @@
#include <linux/types.h>
#include <linux/init.h>
+/* The most frequently accessed fields should be first,
+ * to fit into the same cacheline.
+ */
struct sparc64_tick_ops {
+ unsigned long ticks_per_nsec_quotient;
+ unsigned long offset;
unsigned long long (*get_tick)(void);
int (*add_compare)(unsigned long);
unsigned long softint_mask;
@@ -17,6 +22,8 @@ struct sparc64_tick_ops {
void (*init_tick)(void);
unsigned long (*add_tick)(unsigned long);
+ unsigned long (*get_frequency)(void);
+ unsigned long frequency;
char *name;
};
@@ -27,4 +34,64 @@ unsigned long sparc64_get_clock_tick(unsigned int cpu);
void setup_sparc64_timer(void);
void __init time_init(void);
+#define TICK_PRIV_BIT BIT(63)
+#define TICKCMP_IRQ_BIT BIT(63)
+
+#define HBIRD_STICKCMP_ADDR 0x1fe0000f060UL
+#define HBIRD_STICK_ADDR 0x1fe0000f070UL
+
+#define GET_TICK_NINSTR 13
+struct get_tick_patch {
+ unsigned int addr;
+ unsigned int tick[GET_TICK_NINSTR];
+ unsigned int stick[GET_TICK_NINSTR];
+};
+
+extern struct get_tick_patch __get_tick_patch;
+extern struct get_tick_patch __get_tick_patch_end;
+
+static inline unsigned long get_tick(void)
+{
+ unsigned long tick, tmp1, tmp2;
+
+ __asm__ __volatile__(
+ /* read hbtick 13 instructions */
+ "661:\n"
+ " mov 0x1fe, %1\n"
+ " sllx %1, 0x20, %1\n"
+ " sethi %%hi(0xf000), %2\n"
+ " or %2, 0x70, %2\n"
+ " or %1, %2, %1\n" /* %1 = HBIRD_STICK_ADDR */
+ " add %1, 8, %2\n"
+ " ldxa [%2]%3, %0\n"
+ " ldxa [%1]%3, %1\n"
+ " ldxa [%2]%3, %2\n"
+ " sub %2, %0, %0\n" /* don't modify %xcc */
+ " brnz,pn %0, 661b\n" /* restart to save one register */
+ " sllx %2, 32, %2\n"
+ " or %2, %1, %0\n"
+ /* Common/not patched code */
+ " sllx %0, 1, %0\n"
+ " srlx %0, 1, %0\n" /* Clear TICK_PRIV_BIT */
+ /* Beginning of patch section */
+ " .section .get_tick_patch, \"ax\"\n"
+ " .word 661b\n"
+ /* read tick 2 instructions and 11 skipped */
+ " ba 1f\n"
+ " rd %%tick, %0\n"
+ " .skip 4 * (%4 - 2)\n"
+ "1:\n"
+ /* read stick 2 instructions and 11 skipped */
+ " ba 1f\n"
+ " rd %%asr24, %0\n"
+ " .skip 4 * (%4 - 2)\n"
+ "1:\n"
+ /* End of patch section */
+ " .previous\n"
+ : "=&r" (tick), "=&r" (tmp1), "=&r" (tmp2)
+ : "i" (ASI_PHYS_BYPASS_EC_E), "i" (GET_TICK_NINSTR));
+
+ return tick;
+}
+
#endif /* _SPARC64_TIMER_H */
diff --git a/arch/sparc/include/asm/trap_block.h b/arch/sparc/include/asm/trap_block.h
index ec9c04de3664..dfc538609eb2 100644
--- a/arch/sparc/include/asm/trap_block.h
+++ b/arch/sparc/include/asm/trap_block.h
@@ -54,6 +54,7 @@ extern struct trap_per_cpu trap_block[NR_CPUS];
void init_cur_cpu_trap(struct thread_info *);
void setup_tba(void);
extern int ncpus_probed;
+extern u64 cpu_mondo_counter[NR_CPUS];
unsigned long real_hard_smp_processor_id(void);
@@ -72,6 +73,8 @@ struct sun4v_1insn_patch_entry {
};
extern struct sun4v_1insn_patch_entry __sun4v_1insn_patch,
__sun4v_1insn_patch_end;
+extern struct sun4v_1insn_patch_entry __fast_win_ctrl_1insn_patch,
+ __fast_win_ctrl_1insn_patch_end;
struct sun4v_2insn_patch_entry {
unsigned int addr;
diff --git a/arch/sparc/include/asm/tsb.h b/arch/sparc/include/asm/tsb.h
index 32258e08da03..acf55063aa3d 100644
--- a/arch/sparc/include/asm/tsb.h
+++ b/arch/sparc/include/asm/tsb.h
@@ -195,6 +195,41 @@ extern struct tsb_phys_patch_entry __tsb_phys_patch, __tsb_phys_patch_end;
nop; \
699:
+ /* PUD has been loaded into REG1, interpret the value, seeing
+ * if it is a HUGE PUD or a normal one. If it is not valid
+ * then jump to FAIL_LABEL. If it is a HUGE PUD, and it
+ * translates to a valid PTE, branch to PTE_LABEL.
+ *
+ * We have to propagate bits [32:22] from the virtual address
+ * to resolve at 4M granularity.
+ */
+#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
+#define USER_PGTABLE_CHECK_PUD_HUGE(VADDR, REG1, REG2, FAIL_LABEL, PTE_LABEL) \
+700: ba 700f; \
+ nop; \
+ .section .pud_huge_patch, "ax"; \
+ .word 700b; \
+ nop; \
+ .previous; \
+ brz,pn REG1, FAIL_LABEL; \
+ sethi %uhi(_PAGE_PUD_HUGE), REG2; \
+ sllx REG2, 32, REG2; \
+ andcc REG1, REG2, %g0; \
+ be,pt %xcc, 700f; \
+ sethi %hi(0x1ffc0000), REG2; \
+ sllx REG2, 1, REG2; \
+ brgez,pn REG1, FAIL_LABEL; \
+ andn REG1, REG2, REG1; \
+ and VADDR, REG2, REG2; \
+ brlz,pt REG1, PTE_LABEL; \
+ or REG1, REG2, REG1; \
+700:
+#else
+#define USER_PGTABLE_CHECK_PUD_HUGE(VADDR, REG1, REG2, FAIL_LABEL, PTE_LABEL) \
+ brz,pn REG1, FAIL_LABEL; \
+ nop;
+#endif
+
/* PMD has been loaded into REG1, interpret the value, seeing
* if it is a HUGE PMD or a normal one. If it is not valid
* then jump to FAIL_LABEL. If it is a HUGE PMD, and it
@@ -242,6 +277,7 @@ extern struct tsb_phys_patch_entry __tsb_phys_patch, __tsb_phys_patch_end;
srlx REG2, 64 - PAGE_SHIFT, REG2; \
andn REG2, 0x7, REG2; \
ldxa [REG1 + REG2] ASI_PHYS_USE_EC, REG1; \
+ USER_PGTABLE_CHECK_PUD_HUGE(VADDR, REG1, REG2, FAIL_LABEL, 800f) \
brz,pn REG1, FAIL_LABEL; \
sllx VADDR, 64 - (PMD_SHIFT + PMD_BITS), REG2; \
srlx REG2, 64 - PAGE_SHIFT, REG2; \
diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h
index 12ebee2d97c7..bdb1447aa1bb 100644
--- a/arch/sparc/include/asm/uaccess_32.h
+++ b/arch/sparc/include/asm/uaccess_32.h
@@ -277,7 +277,6 @@ static inline unsigned long clear_user(void __user *addr, unsigned long n)
return n;
}
-__must_check long strlen_user(const char __user *str);
__must_check long strnlen_user(const char __user *str, long n);
#endif /* _ASM_UACCESS_H */
diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h
index 6096d671aa63..6d4c997d1a9e 100644
--- a/arch/sparc/include/asm/uaccess_64.h
+++ b/arch/sparc/include/asm/uaccess_64.h
@@ -9,7 +9,6 @@
#include <linux/string.h>
#include <asm/asi.h>
#include <asm/spitfire.h>
-#include <asm-generic/uaccess-unaligned.h>
#include <asm/extable_64.h>
#include <asm/processor.h>
@@ -194,7 +193,6 @@ unsigned long __must_check __clear_user(void __user *, unsigned long);
#define clear_user __clear_user
-__must_check long strlen_user(const char __user *str);
__must_check long strnlen_user(const char __user *str, long n);
struct pt_regs;
diff --git a/arch/sparc/include/asm/vga.h b/arch/sparc/include/asm/vga.h
index ec0e9967d93d..f54e8b6fb197 100644
--- a/arch/sparc/include/asm/vga.h
+++ b/arch/sparc/include/asm/vga.h
@@ -8,9 +8,13 @@
#define _LINUX_ASM_VGA_H_
#include <linux/bug.h>
+#include <linux/string.h>
#include <asm/types.h>
#define VT_BUF_HAVE_RW
+#define VT_BUF_HAVE_MEMSETW
+#define VT_BUF_HAVE_MEMCPYW
+#define VT_BUF_HAVE_MEMMOVEW
#undef scr_writew
#undef scr_readw
@@ -29,6 +33,27 @@ static inline u16 scr_readw(const u16 *addr)
return *addr;
}
+static inline void scr_memsetw(u16 *p, u16 v, unsigned int n)
+{
+ BUG_ON((long) p >= 0);
+
+ memset16(p, cpu_to_le16(v), n / 2);
+}
+
+static inline void scr_memcpyw(u16 *d, u16 *s, unsigned int n)
+{
+ BUG_ON((long) d >= 0);
+
+ memcpy(d, s, n);
+}
+
+static inline void scr_memmovew(u16 *d, u16 *s, unsigned int n)
+{
+ BUG_ON((long) d >= 0);
+
+ memmove(d, s, n);
+}
+
#define VGA_MAP_MEM(x,s) (x)
#endif
diff --git a/arch/sparc/include/asm/vio.h b/arch/sparc/include/asm/vio.h
index 9dca7a892978..f3d4ac232690 100644
--- a/arch/sparc/include/asm/vio.h
+++ b/arch/sparc/include/asm/vio.h
@@ -52,6 +52,7 @@ struct vio_ver_info {
#define VDEV_NETWORK_SWITCH 0x02
#define VDEV_DISK 0x03
#define VDEV_DISK_SERVER 0x04
+#define VDEV_CONSOLE_CON 0x05
u8 resv1[3];
u64 resv2[5];
@@ -282,6 +283,14 @@ struct vio_dring_state {
struct ldc_trans_cookie cookies[VIO_MAX_RING_COOKIES];
};
+#define VIO_TAG_SIZE ((int)sizeof(struct vio_msg_tag))
+#define VIO_VCC_MTU_SIZE (LDC_PACKET_SIZE - VIO_TAG_SIZE)
+
+struct vio_vcc {
+ struct vio_msg_tag tag;
+ char data[VIO_VCC_MTU_SIZE];
+};
+
static inline void *vio_dring_cur(struct vio_dring_state *dr)
{
return dr->base + (dr->entry_size * dr->prod);
@@ -316,24 +325,33 @@ static inline u32 vio_dring_prev(struct vio_dring_state *dr, u32 index)
}
#define VIO_MAX_TYPE_LEN 32
+#define VIO_MAX_NAME_LEN 32
#define VIO_MAX_COMPAT_LEN 64
struct vio_dev {
u64 mp;
struct device_node *dp;
+ char node_name[VIO_MAX_NAME_LEN];
char type[VIO_MAX_TYPE_LEN];
char compat[VIO_MAX_COMPAT_LEN];
int compat_len;
u64 dev_no;
- u64 id;
+ unsigned long port_id;
unsigned long channel_id;
unsigned int tx_irq;
unsigned int rx_irq;
u64 rx_ino;
+ u64 tx_ino;
+
+ /* Handle to the root of "channel-devices" sub-tree in MDESC */
+ u64 cdev_handle;
+
+ /* MD specific data used to identify the vdev in MD */
+ union md_node_info md_node_info;
struct device dev;
};
@@ -347,6 +365,7 @@ struct vio_driver {
void (*shutdown)(struct vio_dev *dev);
unsigned long driver_data;
struct device_driver driver;
+ bool no_irq;
};
struct vio_version {
@@ -490,5 +509,6 @@ int vio_driver_init(struct vio_driver_state *vio, struct vio_dev *vdev,
void vio_port_up(struct vio_driver_state *vio);
int vio_set_intr(unsigned long dev_ino, int state);
+u64 vio_vdev_node(struct mdesc_handle *hp, struct vio_dev *vdev);
#endif /* _SPARC64_VIO_H */
diff --git a/arch/sparc/include/uapi/asm/Kbuild b/arch/sparc/include/uapi/asm/Kbuild
index b15bf6bc0e94..2178c78c7c1a 100644
--- a/arch/sparc/include/uapi/asm/Kbuild
+++ b/arch/sparc/include/uapi/asm/Kbuild
@@ -1,2 +1,4 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+
+generic-y += types.h
diff --git a/arch/sparc/include/uapi/asm/ioctls.h b/arch/sparc/include/uapi/asm/ioctls.h
index 06b3f6c3bb9a..f5df72b93bb2 100644
--- a/arch/sparc/include/uapi/asm/ioctls.h
+++ b/arch/sparc/include/uapi/asm/ioctls.h
@@ -27,7 +27,7 @@
#define TIOCGRS485 _IOR('T', 0x41, struct serial_rs485)
#define TIOCSRS485 _IOWR('T', 0x42, struct serial_rs485)
-/* Note that all the ioctls that are not available in Linux have a
+/* Note that all the ioctls that are not available in Linux have a
* double underscore on the front to: a) avoid some programs to
* think we support some ioctls under Linux (autoconfiguration stuff)
*/
@@ -88,6 +88,7 @@
#define TIOCGPTN _IOR('t', 134, unsigned int) /* Get Pty Number */
#define TIOCSPTLCK _IOW('t', 135, int) /* Lock/unlock PTY */
#define TIOCSIG _IOW('t', 136, int) /* Generate signal on Pty slave */
+#define TIOCGPTPEER _IO('t', 137) /* Safely open the slave */
/* Little f */
#define FIOCLEX _IO('f', 1)
diff --git a/arch/sparc/include/uapi/asm/siginfo.h b/arch/sparc/include/uapi/asm/siginfo.h
index 2d9b79ccaa50..157f46fe374f 100644
--- a/arch/sparc/include/uapi/asm/siginfo.h
+++ b/arch/sparc/include/uapi/asm/siginfo.h
@@ -17,9 +17,16 @@
#define SI_NOINFO 32767 /* no information in siginfo_t */
/*
+ * SIGFPE si_codes
+ */
+#ifdef __KERNEL__
+#define FPE_FIXME 0 /* Broken dup of SI_USER */
+#endif /* __KERNEL__ */
+
+/*
* SIGEMT si_codes
*/
-#define EMT_TAGOVF (__SI_FAULT|1) /* tag overflow */
+#define EMT_TAGOVF 1 /* tag overflow */
#define NSIGEMT 1
#endif /* _UAPI__SPARC_SIGINFO_H */
diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h
index 3f4ad19d9ec7..b2f5c50d0947 100644
--- a/arch/sparc/include/uapi/asm/socket.h
+++ b/arch/sparc/include/uapi/asm/socket.h
@@ -94,6 +94,12 @@
#define SO_COOKIE 0x003b
+#define SCM_TIMESTAMPING_PKTINFO 0x003c
+
+#define SO_PEERGROUPS 0x003d
+
+#define SO_ZEROCOPY 0x003e
+
/* Security levels - as per NRL IPv6 - don't actually do anything */
#define SO_SECURITY_AUTHENTICATION 0x5001
#define SO_SECURITY_ENCRYPTION_TRANSPORT 0x5002
diff --git a/arch/sparc/kernel/apc.c b/arch/sparc/kernel/apc.c
index 9ebc37e7d64c..c988e7fa069b 100644
--- a/arch/sparc/kernel/apc.c
+++ b/arch/sparc/kernel/apc.c
@@ -167,7 +167,7 @@ static int apc_probe(struct platform_device *op)
return 0;
}
-static struct of_device_id apc_match[] = {
+static const struct of_device_id apc_match[] = {
{
.name = APC_OBPNAME,
},
diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c
index 493e023a468a..ef4f18f7a674 100644
--- a/arch/sparc/kernel/cpu.c
+++ b/arch/sparc/kernel/cpu.c
@@ -506,6 +506,12 @@ static void __init sun4v_cpu_probe(void)
sparc_pmu_type = "sparc-m7";
break;
+ case SUN4V_CHIP_SPARC_M8:
+ sparc_cpu_type = "SPARC-M8";
+ sparc_fpu_type = "SPARC-M8 integrated FPU";
+ sparc_pmu_type = "sparc-m8";
+ break;
+
case SUN4V_CHIP_SPARC_SN:
sparc_cpu_type = "SPARC-SN";
sparc_fpu_type = "SPARC-SN integrated FPU";
diff --git a/arch/sparc/kernel/cpumap.c b/arch/sparc/kernel/cpumap.c
index 45c820e1cba5..90d550bbfeef 100644
--- a/arch/sparc/kernel/cpumap.c
+++ b/arch/sparc/kernel/cpumap.c
@@ -328,6 +328,7 @@ static int iterate_cpu(struct cpuinfo_tree *t, unsigned int root_index)
case SUN4V_CHIP_NIAGARA5:
case SUN4V_CHIP_SPARC_M6:
case SUN4V_CHIP_SPARC_M7:
+ case SUN4V_CHIP_SPARC_M8:
case SUN4V_CHIP_SPARC_SN:
case SUN4V_CHIP_SPARC64X:
rover_inc_table = niagara_iterate_method;
diff --git a/arch/sparc/kernel/etrap_64.S b/arch/sparc/kernel/etrap_64.S
index 1276ca2567ba..5c237467d156 100644
--- a/arch/sparc/kernel/etrap_64.S
+++ b/arch/sparc/kernel/etrap_64.S
@@ -38,7 +38,11 @@ etrap_syscall: TRAP_LOAD_THREAD_REG(%g6, %g1)
or %g1, %g3, %g1
bne,pn %xcc, 1f
sub %sp, STACKFRAME_SZ+TRACEREG_SZ-STACK_BIAS, %g2
- wrpr %g0, 7, %cleanwin
+661: wrpr %g0, 7, %cleanwin
+ .section .fast_win_ctrl_1insn_patch, "ax"
+ .word 661b
+ .word 0x85880000 ! allclean
+ .previous
sethi %hi(TASK_REGOFF), %g2
sethi %hi(TSTATE_PEF), %g3
@@ -88,16 +92,30 @@ etrap_save: save %g2, -STACK_BIAS, %sp
bne,pn %xcc, 3f
mov PRIMARY_CONTEXT, %l4
- rdpr %canrestore, %g3
+661: rdpr %canrestore, %g3
+ .section .fast_win_ctrl_1insn_patch, "ax"
+ .word 661b
+ nop
+ .previous
+
rdpr %wstate, %g2
- wrpr %g0, 0, %canrestore
+661: wrpr %g0, 0, %canrestore
+ .section .fast_win_ctrl_1insn_patch, "ax"
+ .word 661b
+ nop
+ .previous
sll %g2, 3, %g2
/* Set TI_SYS_FPDEPTH to 1 and clear TI_SYS_NOERROR. */
mov 1, %l5
sth %l5, [%l6 + TI_SYS_NOERROR]
- wrpr %g3, 0, %otherwin
+661: wrpr %g3, 0, %otherwin
+ .section .fast_win_ctrl_1insn_patch, "ax"
+ .word 661b
+ .word 0x87880000 ! otherw
+ .previous
+
wrpr %g2, 0, %wstate
sethi %hi(sparc64_kern_pri_context), %g2
ldx [%g2 + %lo(sparc64_kern_pri_context)], %g3
diff --git a/arch/sparc/kernel/head_64.S b/arch/sparc/kernel/head_64.S
index 41a407328667..4de9fbd1a177 100644
--- a/arch/sparc/kernel/head_64.S
+++ b/arch/sparc/kernel/head_64.S
@@ -424,22 +424,25 @@ EXPORT_SYMBOL(sun4v_chip_type)
nop
70: ldub [%g1 + 7], %g2
- cmp %g2, '3'
+ cmp %g2, CPU_ID_NIAGARA3
be,pt %xcc, 5f
mov SUN4V_CHIP_NIAGARA3, %g4
- cmp %g2, '4'
+ cmp %g2, CPU_ID_NIAGARA4
be,pt %xcc, 5f
mov SUN4V_CHIP_NIAGARA4, %g4
- cmp %g2, '5'
+ cmp %g2, CPU_ID_NIAGARA5
be,pt %xcc, 5f
mov SUN4V_CHIP_NIAGARA5, %g4
- cmp %g2, '6'
+ cmp %g2, CPU_ID_M6
be,pt %xcc, 5f
mov SUN4V_CHIP_SPARC_M6, %g4
- cmp %g2, '7'
+ cmp %g2, CPU_ID_M7
be,pt %xcc, 5f
mov SUN4V_CHIP_SPARC_M7, %g4
- cmp %g2, 'N'
+ cmp %g2, CPU_ID_M8
+ be,pt %xcc, 5f
+ mov SUN4V_CHIP_SPARC_M8, %g4
+ cmp %g2, CPU_ID_SONOMA1
be,pt %xcc, 5f
mov SUN4V_CHIP_SPARC_SN, %g4
ba,pt %xcc, 49f
@@ -448,10 +451,10 @@ EXPORT_SYMBOL(sun4v_chip_type)
91: sethi %hi(prom_cpu_compatible), %g1
or %g1, %lo(prom_cpu_compatible), %g1
ldub [%g1 + 17], %g2
- cmp %g2, '1'
+ cmp %g2, CPU_ID_NIAGARA1
be,pt %xcc, 5f
mov SUN4V_CHIP_NIAGARA1, %g4
- cmp %g2, '2'
+ cmp %g2, CPU_ID_NIAGARA2
be,pt %xcc, 5f
mov SUN4V_CHIP_NIAGARA2, %g4
@@ -600,7 +603,10 @@ niagara_tlb_fixup:
be,pt %xcc, niagara4_patch
nop
cmp %g1, SUN4V_CHIP_SPARC_M7
- be,pt %xcc, niagara4_patch
+ be,pt %xcc, sparc_m7_patch
+ nop
+ cmp %g1, SUN4V_CHIP_SPARC_M8
+ be,pt %xcc, sparc_m7_patch
nop
cmp %g1, SUN4V_CHIP_SPARC_SN
be,pt %xcc, niagara4_patch
@@ -615,6 +621,18 @@ niagara_tlb_fixup:
ba,a,pt %xcc, 80f
nop
+
+sparc_m7_patch:
+ call m7_patch_copyops
+ nop
+ call m7_patch_bzero
+ nop
+ call m7_patch_pageops
+ nop
+
+ ba,a,pt %xcc, 80f
+ nop
+
niagara4_patch:
call niagara4_patch_copyops
nop
@@ -875,7 +893,6 @@ sparc64_boot_end:
#include "misctrap.S"
#include "syscalls.S"
#include "helpers.S"
-#include "hvcalls.S"
#include "sun4v_tlb_miss.S"
#include "sun4v_ivec.S"
#include "ktlb.S"
@@ -920,6 +937,7 @@ swapper_4m_tsb:
! 0x0000000000428000
+#include "hvcalls.S"
#include "systbls_64.S"
.data
diff --git a/arch/sparc/kernel/hvapi.c b/arch/sparc/kernel/hvapi.c
index 267731234ce8..d41ce33d87d6 100644
--- a/arch/sparc/kernel/hvapi.c
+++ b/arch/sparc/kernel/hvapi.c
@@ -189,7 +189,7 @@ void __init sun4v_hvapi_init(void)
group = HV_GRP_CORE;
major = 1;
- minor = 1;
+ minor = 6;
if (sun4v_hvapi_register(group, major, &minor))
goto bad;
diff --git a/arch/sparc/kernel/hvcalls.S b/arch/sparc/kernel/hvcalls.S
index 4116ee5c7791..e57007ff7f8f 100644
--- a/arch/sparc/kernel/hvcalls.S
+++ b/arch/sparc/kernel/hvcalls.S
@@ -106,6 +106,17 @@ ENTRY(sun4v_cpu_yield)
nop
ENDPROC(sun4v_cpu_yield)
+ /* %o0: cpuid
+ *
+ * returns %o0: status
+ */
+ENTRY(sun4v_cpu_poke)
+ mov HV_FAST_CPU_POKE, %o5
+ ta HV_FAST_TRAP
+ retl
+ nop
+ENDPROC(sun4v_cpu_poke)
+
/* %o0: type
* %o1: queue paddr
* %o2: num queue entries
diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c
index c63ba99ca551..fcbcc031f615 100644
--- a/arch/sparc/kernel/iommu.c
+++ b/arch/sparc/kernel/iommu.c
@@ -314,7 +314,7 @@ bad:
bad_no_ctx:
if (printk_ratelimit())
WARN_ON(1);
- return DMA_ERROR_CODE;
+ return SPARC_MAPPING_ERROR;
}
static void strbuf_flush(struct strbuf *strbuf, struct iommu *iommu,
@@ -547,7 +547,7 @@ static int dma_4u_map_sg(struct device *dev, struct scatterlist *sglist,
if (outcount < incount) {
outs = sg_next(outs);
- outs->dma_address = DMA_ERROR_CODE;
+ outs->dma_address = SPARC_MAPPING_ERROR;
outs->dma_length = 0;
}
@@ -573,7 +573,7 @@ iommu_map_failed:
iommu_tbl_range_free(&iommu->tbl, vaddr, npages,
IOMMU_ERROR_CODE);
- s->dma_address = DMA_ERROR_CODE;
+ s->dma_address = SPARC_MAPPING_ERROR;
s->dma_length = 0;
}
if (s == outs)
@@ -741,6 +741,26 @@ static void dma_4u_sync_sg_for_cpu(struct device *dev,
spin_unlock_irqrestore(&iommu->lock, flags);
}
+static int dma_4u_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return dma_addr == SPARC_MAPPING_ERROR;
+}
+
+static int dma_4u_supported(struct device *dev, u64 device_mask)
+{
+ struct iommu *iommu = dev->archdata.iommu;
+
+ if (device_mask > DMA_BIT_MASK(32))
+ return 0;
+ if ((device_mask & iommu->dma_addr_mask) == iommu->dma_addr_mask)
+ return 1;
+#ifdef CONFIG_PCI
+ if (dev_is_pci(dev))
+ return pci64_dma_supported(to_pci_dev(dev), device_mask);
+#endif
+ return 0;
+}
+
static const struct dma_map_ops sun4u_dma_ops = {
.alloc = dma_4u_alloc_coherent,
.free = dma_4u_free_coherent,
@@ -750,31 +770,9 @@ static const struct dma_map_ops sun4u_dma_ops = {
.unmap_sg = dma_4u_unmap_sg,
.sync_single_for_cpu = dma_4u_sync_single_for_cpu,
.sync_sg_for_cpu = dma_4u_sync_sg_for_cpu,
+ .dma_supported = dma_4u_supported,
+ .mapping_error = dma_4u_mapping_error,
};
const struct dma_map_ops *dma_ops = &sun4u_dma_ops;
EXPORT_SYMBOL(dma_ops);
-
-int dma_supported(struct device *dev, u64 device_mask)
-{
- struct iommu *iommu = dev->archdata.iommu;
- u64 dma_addr_mask = iommu->dma_addr_mask;
-
- if (device_mask > DMA_BIT_MASK(32)) {
- if (iommu->atu)
- dma_addr_mask = iommu->atu->dma_addr_mask;
- else
- return 0;
- }
-
- if ((device_mask & dma_addr_mask) == dma_addr_mask)
- return 1;
-
-#ifdef CONFIG_PCI
- if (dev_is_pci(dev))
- return pci64_dma_supported(to_pci_dev(dev), device_mask);
-#endif
-
- return 0;
-}
-EXPORT_SYMBOL(dma_supported);
diff --git a/arch/sparc/kernel/iommu_common.h b/arch/sparc/kernel/iommu_common.h
index 828493329f68..5ea5c192b1d9 100644
--- a/arch/sparc/kernel/iommu_common.h
+++ b/arch/sparc/kernel/iommu_common.h
@@ -47,4 +47,6 @@ static inline int is_span_boundary(unsigned long entry,
return iommu_is_span_boundary(entry, nr, shift, boundary_size);
}
+#define SPARC_MAPPING_ERROR (~(dma_addr_t)0x0)
+
#endif /* _IOMMU_COMMON_H */
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index cf20033a1458..12894f259bea 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -401,6 +401,11 @@ static void sbus_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
BUG();
}
+static int sbus_dma_supported(struct device *dev, u64 mask)
+{
+ return 0;
+}
+
static const struct dma_map_ops sbus_dma_ops = {
.alloc = sbus_alloc_coherent,
.free = sbus_free_coherent,
@@ -410,6 +415,7 @@ static const struct dma_map_ops sbus_dma_ops = {
.unmap_sg = sbus_unmap_sg,
.sync_sg_for_cpu = sbus_sync_sg_for_cpu,
.sync_sg_for_device = sbus_sync_sg_for_device,
+ .dma_supported = sbus_dma_supported,
};
static int __init sparc_register_ioport(void)
@@ -637,6 +643,7 @@ static void pci32_sync_sg_for_device(struct device *device, struct scatterlist *
}
}
+/* note: leon re-uses pci32_dma_ops */
const struct dma_map_ops pci32_dma_ops = {
.alloc = pci32_alloc_coherent,
.free = pci32_free_coherent,
@@ -651,29 +658,9 @@ const struct dma_map_ops pci32_dma_ops = {
};
EXPORT_SYMBOL(pci32_dma_ops);
-/* leon re-uses pci32_dma_ops */
-const struct dma_map_ops *leon_dma_ops = &pci32_dma_ops;
-EXPORT_SYMBOL(leon_dma_ops);
-
const struct dma_map_ops *dma_ops = &sbus_dma_ops;
EXPORT_SYMBOL(dma_ops);
-
-/*
- * Return whether the given PCI device DMA address mask can be
- * supported properly. For example, if your device can only drive the
- * low 24-bits during PCI bus mastering, then you would pass
- * 0x00ffffff as the mask to this function.
- */
-int dma_supported(struct device *dev, u64 mask)
-{
- if (dev_is_pci(dev))
- return 1;
-
- return 0;
-}
-EXPORT_SYMBOL(dma_supported);
-
#ifdef CONFIG_PROC_FS
static int sparc_io_proc_show(struct seq_file *m, void *v)
diff --git a/arch/sparc/kernel/jump_label.c b/arch/sparc/kernel/jump_label.c
index 07933b9e9ce0..93adde1ac166 100644
--- a/arch/sparc/kernel/jump_label.c
+++ b/arch/sparc/kernel/jump_label.c
@@ -41,12 +41,10 @@ void arch_jump_label_transform(struct jump_entry *entry,
val = 0x01000000;
}
- get_online_cpus();
mutex_lock(&text_mutex);
*insn = val;
flushi(insn);
mutex_unlock(&text_mutex);
- put_online_cpus();
}
#endif
diff --git a/arch/sparc/kernel/kernel.h b/arch/sparc/kernel/kernel.h
index 6ae1e77be0bf..b625db4cfb78 100644
--- a/arch/sparc/kernel/kernel.h
+++ b/arch/sparc/kernel/kernel.h
@@ -52,6 +52,9 @@ asmlinkage void do_rt_sigreturn32(struct pt_regs *regs);
void do_signal32(struct pt_regs * regs);
asmlinkage int do_sys32_sigstack(u32 u_ssptr, u32 u_ossptr, unsigned long sp);
+/* time_64.c */
+void __init time_init_early(void);
+
/* compat_audit.c */
extern unsigned int sparc32_dir_class[];
extern unsigned int sparc32_chattr_class[];
diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c
index 59d503866431..acffbc894ab0 100644
--- a/arch/sparc/kernel/ldc.c
+++ b/arch/sparc/kernel/ldc.c
@@ -34,7 +34,6 @@
static char version[] =
DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
-#define LDC_PACKET_SIZE 64
/* Packet header layout for unreliable and reliable mode frames.
* When in RAW mode, packets are simply straight 64-byte payloads
@@ -178,6 +177,8 @@ do { if (lp->cfg.debug & LDC_DEBUG_##TYPE) \
printk(KERN_INFO PFX "ID[%lu] " f, lp->id, ## a); \
} while (0)
+#define LDC_ABORT(lp) ldc_abort((lp), __func__)
+
static const char *state_to_str(u8 state)
{
switch (state) {
@@ -196,15 +197,6 @@ static const char *state_to_str(u8 state)
}
}
-static void ldc_set_state(struct ldc_channel *lp, u8 state)
-{
- ldcdbg(STATE, "STATE (%s) --> (%s)\n",
- state_to_str(lp->state),
- state_to_str(state));
-
- lp->state = state;
-}
-
static unsigned long __advance(unsigned long off, unsigned long num_entries)
{
off += LDC_PACKET_SIZE;
@@ -516,11 +508,12 @@ static int send_data_nack(struct ldc_channel *lp, struct ldc_packet *data_pkt)
return err;
}
-static int ldc_abort(struct ldc_channel *lp)
+static int ldc_abort(struct ldc_channel *lp, const char *msg)
{
unsigned long hv_err;
- ldcdbg(STATE, "ABORT\n");
+ ldcdbg(STATE, "ABORT[%s]\n", msg);
+ ldc_print(lp);
/* We report but do not act upon the hypervisor errors because
* there really isn't much we can do if they fail at this point.
@@ -605,7 +598,7 @@ static int process_ver_info(struct ldc_channel *lp, struct ldc_version *vp)
}
}
if (err)
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
return 0;
}
@@ -618,13 +611,13 @@ static int process_ver_ack(struct ldc_channel *lp, struct ldc_version *vp)
if (lp->hs_state == LDC_HS_GOTVERS) {
if (lp->ver.major != vp->major ||
lp->ver.minor != vp->minor)
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
} else {
lp->ver = *vp;
lp->hs_state = LDC_HS_GOTVERS;
}
if (send_rts(lp))
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
return 0;
}
@@ -635,17 +628,17 @@ static int process_ver_nack(struct ldc_channel *lp, struct ldc_version *vp)
unsigned long new_tail;
if (vp->major == 0 && vp->minor == 0)
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
vap = find_by_major(vp->major);
if (!vap)
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
p = handshake_compose_ctrl(lp, LDC_INFO, LDC_VERS,
vap, sizeof(*vap),
&new_tail);
if (!p)
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
return send_tx_packet(lp, p, new_tail);
}
@@ -668,7 +661,7 @@ static int process_version(struct ldc_channel *lp,
return process_ver_nack(lp, vp);
default:
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
}
}
@@ -681,13 +674,13 @@ static int process_rts(struct ldc_channel *lp,
if (p->stype != LDC_INFO ||
lp->hs_state != LDC_HS_GOTVERS ||
p->env != lp->cfg.mode)
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
lp->snd_nxt = p->seqid;
lp->rcv_nxt = p->seqid;
lp->hs_state = LDC_HS_SENTRTR;
if (send_rtr(lp))
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
return 0;
}
@@ -700,7 +693,7 @@ static int process_rtr(struct ldc_channel *lp,
if (p->stype != LDC_INFO ||
p->env != lp->cfg.mode)
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
lp->snd_nxt = p->seqid;
lp->hs_state = LDC_HS_COMPLETE;
@@ -723,7 +716,7 @@ static int process_rdx(struct ldc_channel *lp,
if (p->stype != LDC_INFO ||
!(rx_seq_ok(lp, p->seqid)))
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
lp->rcv_nxt = p->seqid;
@@ -750,14 +743,14 @@ static int process_control_frame(struct ldc_channel *lp,
return process_rdx(lp, p);
default:
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
}
}
static int process_error_frame(struct ldc_channel *lp,
struct ldc_packet *p)
{
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
}
static int process_data_ack(struct ldc_channel *lp,
@@ -776,7 +769,7 @@ static int process_data_ack(struct ldc_channel *lp,
return 0;
}
if (head == lp->tx_tail)
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
}
return 0;
@@ -820,16 +813,21 @@ static irqreturn_t ldc_rx(int irq, void *dev_id)
lp->hs_state = LDC_HS_COMPLETE;
ldc_set_state(lp, LDC_STATE_CONNECTED);
- event_mask |= LDC_EVENT_UP;
-
- orig_state = lp->chan_state;
+ /*
+ * Generate an LDC_EVENT_UP event if the channel
+ * was not already up.
+ */
+ if (orig_state != LDC_CHANNEL_UP) {
+ event_mask |= LDC_EVENT_UP;
+ orig_state = lp->chan_state;
+ }
}
/* If we are in reset state, flush the RX queue and ignore
* everything.
*/
if (lp->flags & LDC_FLAG_RESET) {
- (void) __set_rx_head(lp, lp->rx_tail);
+ (void) ldc_rx_reset(lp);
goto out;
}
@@ -880,7 +878,7 @@ handshake_complete:
break;
default:
- err = ldc_abort(lp);
+ err = LDC_ABORT(lp);
break;
}
@@ -895,7 +893,7 @@ handshake_complete:
err = __set_rx_head(lp, new);
if (err < 0) {
- (void) ldc_abort(lp);
+ (void) LDC_ABORT(lp);
break;
}
if (lp->hs_state == LDC_HS_COMPLETE)
@@ -936,7 +934,14 @@ static irqreturn_t ldc_tx(int irq, void *dev_id)
lp->hs_state = LDC_HS_COMPLETE;
ldc_set_state(lp, LDC_STATE_CONNECTED);
- event_mask |= LDC_EVENT_UP;
+ /*
+ * Generate an LDC_EVENT_UP event if the channel
+ * was not already up.
+ */
+ if (orig_state != LDC_CHANNEL_UP) {
+ event_mask |= LDC_EVENT_UP;
+ orig_state = lp->chan_state;
+ }
}
spin_unlock_irqrestore(&lp->lock, flags);
@@ -1342,6 +1347,14 @@ int ldc_bind(struct ldc_channel *lp)
lp->hs_state = LDC_HS_OPEN;
ldc_set_state(lp, LDC_STATE_BOUND);
+ if (lp->cfg.mode == LDC_MODE_RAW) {
+ /*
+ * There is no handshake in RAW mode, so handshake
+ * is completed.
+ */
+ lp->hs_state = LDC_HS_COMPLETE;
+ }
+
spin_unlock_irqrestore(&lp->lock, flags);
return 0;
@@ -1447,12 +1460,56 @@ int ldc_state(struct ldc_channel *lp)
}
EXPORT_SYMBOL(ldc_state);
+void ldc_set_state(struct ldc_channel *lp, u8 state)
+{
+ ldcdbg(STATE, "STATE (%s) --> (%s)\n",
+ state_to_str(lp->state),
+ state_to_str(state));
+
+ lp->state = state;
+}
+EXPORT_SYMBOL(ldc_set_state);
+
+int ldc_mode(struct ldc_channel *lp)
+{
+ return lp->cfg.mode;
+}
+EXPORT_SYMBOL(ldc_mode);
+
+int ldc_rx_reset(struct ldc_channel *lp)
+{
+ return __set_rx_head(lp, lp->rx_tail);
+}
+EXPORT_SYMBOL(ldc_rx_reset);
+
+void __ldc_print(struct ldc_channel *lp, const char *caller)
+{
+ pr_info("%s: id=0x%lx flags=0x%x state=%s cstate=0x%lx hsstate=0x%x\n"
+ "\trx_h=0x%lx rx_t=0x%lx rx_n=%ld\n"
+ "\ttx_h=0x%lx tx_t=0x%lx tx_n=%ld\n"
+ "\trcv_nxt=%u snd_nxt=%u\n",
+ caller, lp->id, lp->flags, state_to_str(lp->state),
+ lp->chan_state, lp->hs_state,
+ lp->rx_head, lp->rx_tail, lp->rx_num_entries,
+ lp->tx_head, lp->tx_tail, lp->tx_num_entries,
+ lp->rcv_nxt, lp->snd_nxt);
+}
+EXPORT_SYMBOL(__ldc_print);
+
static int write_raw(struct ldc_channel *lp, const void *buf, unsigned int size)
{
struct ldc_packet *p;
- unsigned long new_tail;
+ unsigned long new_tail, hv_err;
int err;
+ hv_err = sun4v_ldc_tx_get_state(lp->id, &lp->tx_head, &lp->tx_tail,
+ &lp->chan_state);
+ if (unlikely(hv_err))
+ return -EBUSY;
+
+ if (unlikely(lp->chan_state != LDC_CHANNEL_UP))
+ return LDC_ABORT(lp);
+
if (size > LDC_PACKET_SIZE)
return -EMSGSIZE;
@@ -1483,7 +1540,7 @@ static int read_raw(struct ldc_channel *lp, void *buf, unsigned int size)
&lp->rx_tail,
&lp->chan_state);
if (hv_err)
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
if (lp->chan_state == LDC_CHANNEL_DOWN ||
lp->chan_state == LDC_CHANNEL_RESETTING)
@@ -1526,7 +1583,7 @@ static int write_nonraw(struct ldc_channel *lp, const void *buf,
return -EBUSY;
if (unlikely(lp->chan_state != LDC_CHANNEL_UP))
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
if (!tx_has_space_for(lp, size))
return -EAGAIN;
@@ -1592,9 +1649,9 @@ static int rx_bad_seq(struct ldc_channel *lp, struct ldc_packet *p,
if (err)
return err;
- err = __set_rx_head(lp, lp->rx_tail);
+ err = ldc_rx_reset(lp);
if (err < 0)
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
return 0;
}
@@ -1607,7 +1664,7 @@ static int data_ack_nack(struct ldc_channel *lp, struct ldc_packet *p)
return err;
}
if (p->stype & LDC_NACK)
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
return 0;
}
@@ -1627,7 +1684,7 @@ static int rx_data_wait(struct ldc_channel *lp, unsigned long cur_head)
&lp->rx_tail,
&lp->chan_state);
if (hv_err)
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
if (lp->chan_state == LDC_CHANNEL_DOWN ||
lp->chan_state == LDC_CHANNEL_RESETTING)
@@ -1650,7 +1707,7 @@ static int rx_set_head(struct ldc_channel *lp, unsigned long head)
int err = __set_rx_head(lp, head);
if (err < 0)
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
lp->rx_head = head;
return 0;
@@ -1689,7 +1746,7 @@ static int read_nonraw(struct ldc_channel *lp, void *buf, unsigned int size)
&lp->rx_tail,
&lp->chan_state);
if (hv_err)
- return ldc_abort(lp);
+ return LDC_ABORT(lp);
if (lp->chan_state == LDC_CHANNEL_DOWN ||
lp->chan_state == LDC_CHANNEL_RESETTING)
@@ -1733,9 +1790,14 @@ static int read_nonraw(struct ldc_channel *lp, void *buf, unsigned int size)
lp->rcv_nxt = p->seqid;
+ /*
+ * If this is a control-only packet, there is nothing
+ * else to do but advance the rx queue since the packet
+ * was already processed above.
+ */
if (!(p->type & LDC_DATA)) {
new = rx_advance(lp, new);
- goto no_data;
+ break;
}
if (p->stype & (LDC_ACK | LDC_NACK)) {
err = data_ack_nack(lp, p);
@@ -1900,6 +1962,8 @@ int ldc_read(struct ldc_channel *lp, void *buf, unsigned int size)
unsigned long flags;
int err;
+ ldcdbg(RX, "%s: entered size=%d\n", __func__, size);
+
if (!buf)
return -EINVAL;
@@ -1915,6 +1979,9 @@ int ldc_read(struct ldc_channel *lp, void *buf, unsigned int size)
spin_unlock_irqrestore(&lp->lock, flags);
+ ldcdbg(RX, "%s: mode=%d, head=%lu, tail=%lu rv=%d\n", __func__,
+ lp->cfg.mode, lp->rx_head, lp->rx_tail, err);
+
return err;
}
EXPORT_SYMBOL(ldc_read);
diff --git a/arch/sparc/kernel/leon_pci.c b/arch/sparc/kernel/leon_pci.c
index 4371f72ff025..98c223edac84 100644
--- a/arch/sparc/kernel/leon_pci.c
+++ b/arch/sparc/kernel/leon_pci.c
@@ -25,6 +25,12 @@ void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info)
{
LIST_HEAD(resources);
struct pci_bus *root_bus;
+ struct pci_host_bridge *bridge;
+ int ret;
+
+ bridge = pci_alloc_host_bridge(0);
+ if (!bridge)
+ return;
pci_add_resource_offset(&resources, &info->io_space,
info->io_space.start - 0x1000);
@@ -32,15 +38,21 @@ void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info)
info->busn.flags = IORESOURCE_BUS;
pci_add_resource(&resources, &info->busn);
- root_bus = pci_scan_root_bus(&ofdev->dev, 0, info->ops, info,
- &resources);
- if (!root_bus) {
- pci_free_resource_list(&resources);
+ list_splice_init(&resources, &bridge->windows);
+ bridge->dev.parent = &ofdev->dev;
+ bridge->sysdata = info;
+ bridge->busnr = 0;
+ bridge->ops = info->ops;
+ bridge->swizzle_irq = pci_common_swizzle;
+ bridge->map_irq = info->map_irq;
+
+ ret = pci_scan_root_bus_bridge(bridge);
+ if (ret) {
+ pci_free_host_bridge(bridge);
return;
}
- /* Setup IRQs of all devices using custom routines */
- pci_fixup_irqs(pci_common_swizzle, info->map_irq);
+ root_bus = bridge->bus;
/* Assign devices with resources */
pci_assign_unassigned_resources();
@@ -94,9 +106,3 @@ void pcibios_fixup_bus(struct pci_bus *pbus)
}
}
}
-
-resource_size_t pcibios_align_resource(void *data, const struct resource *res,
- resource_size_t size, resource_size_t align)
-{
- return res->start;
-}
diff --git a/arch/sparc/kernel/leon_pci_grpci1.c b/arch/sparc/kernel/leon_pci_grpci1.c
index 1e77128a8f88..83ba5005d44c 100644
--- a/arch/sparc/kernel/leon_pci_grpci1.c
+++ b/arch/sparc/kernel/leon_pci_grpci1.c
@@ -695,7 +695,7 @@ err1:
return err;
}
-static struct of_device_id grpci1_of_match[] = {
+static const struct of_device_id grpci1_of_match[] __initconst = {
{
.name = "GAISLER_PCIFBRG",
},
diff --git a/arch/sparc/kernel/leon_pci_grpci2.c b/arch/sparc/kernel/leon_pci_grpci2.c
index f727c4de1316..ff0e5c90310f 100644
--- a/arch/sparc/kernel/leon_pci_grpci2.c
+++ b/arch/sparc/kernel/leon_pci_grpci2.c
@@ -886,7 +886,7 @@ err1:
return err;
}
-static struct of_device_id grpci2_of_match[] = {
+static const struct of_device_id grpci2_of_match[] __initconst = {
{
.name = "GAISLER_GRPCI2",
},
diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c
index c0765bbf60ea..fa466ce45bc9 100644
--- a/arch/sparc/kernel/mdesc.c
+++ b/arch/sparc/kernel/mdesc.c
@@ -75,6 +75,74 @@ struct mdesc_handle {
struct mdesc_hdr mdesc;
};
+typedef int (*mdesc_node_info_get_f)(struct mdesc_handle *, u64,
+ union md_node_info *);
+typedef void (*mdesc_node_info_rel_f)(union md_node_info *);
+typedef bool (*mdesc_node_match_f)(union md_node_info *, union md_node_info *);
+
+struct md_node_ops {
+ char *name;
+ mdesc_node_info_get_f get_info;
+ mdesc_node_info_rel_f rel_info;
+ mdesc_node_match_f node_match;
+};
+
+static int get_vdev_port_node_info(struct mdesc_handle *md, u64 node,
+ union md_node_info *node_info);
+static void rel_vdev_port_node_info(union md_node_info *node_info);
+static bool vdev_port_node_match(union md_node_info *a_node_info,
+ union md_node_info *b_node_info);
+
+static int get_ds_port_node_info(struct mdesc_handle *md, u64 node,
+ union md_node_info *node_info);
+static void rel_ds_port_node_info(union md_node_info *node_info);
+static bool ds_port_node_match(union md_node_info *a_node_info,
+ union md_node_info *b_node_info);
+
+/* supported node types which can be registered */
+static struct md_node_ops md_node_ops_table[] = {
+ {"virtual-device-port", get_vdev_port_node_info,
+ rel_vdev_port_node_info, vdev_port_node_match},
+ {"domain-services-port", get_ds_port_node_info,
+ rel_ds_port_node_info, ds_port_node_match},
+ {NULL, NULL, NULL, NULL}
+};
+
+static void mdesc_get_node_ops(const char *node_name,
+ mdesc_node_info_get_f *get_info_f,
+ mdesc_node_info_rel_f *rel_info_f,
+ mdesc_node_match_f *match_f)
+{
+ int i;
+
+ if (get_info_f)
+ *get_info_f = NULL;
+
+ if (rel_info_f)
+ *rel_info_f = NULL;
+
+ if (match_f)
+ *match_f = NULL;
+
+ if (!node_name)
+ return;
+
+ for (i = 0; md_node_ops_table[i].name != NULL; i++) {
+ if (strcmp(md_node_ops_table[i].name, node_name) == 0) {
+ if (get_info_f)
+ *get_info_f = md_node_ops_table[i].get_info;
+
+ if (rel_info_f)
+ *rel_info_f = md_node_ops_table[i].rel_info;
+
+ if (match_f)
+ *match_f = md_node_ops_table[i].node_match;
+
+ break;
+ }
+ }
+}
+
static void mdesc_handle_init(struct mdesc_handle *hp,
unsigned int handle_size,
void *base)
@@ -137,12 +205,10 @@ static struct mdesc_handle *mdesc_kmalloc(unsigned int mdesc_size)
handle_size = (sizeof(struct mdesc_handle) -
sizeof(struct mdesc_hdr) +
mdesc_size);
+ base = kmalloc(handle_size + 15, GFP_KERNEL | __GFP_RETRY_MAYFAIL);
+ if (!base)
+ return NULL;
- /*
- * Allocation has to succeed because mdesc update would be missed
- * and such events are not retransmitted.
- */
- base = kmalloc(handle_size + 15, GFP_KERNEL | __GFP_NOFAIL);
addr = (unsigned long)base;
addr = (addr + 15UL) & ~15UL;
hp = (struct mdesc_handle *) addr;
@@ -218,14 +284,31 @@ static struct mdesc_notifier_client *client_list;
void mdesc_register_notifier(struct mdesc_notifier_client *client)
{
+ bool supported = false;
u64 node;
+ int i;
mutex_lock(&mdesc_mutex);
+
+ /* check to see if the node is supported for registration */
+ for (i = 0; md_node_ops_table[i].name != NULL; i++) {
+ if (strcmp(md_node_ops_table[i].name, client->node_name) == 0) {
+ supported = true;
+ break;
+ }
+ }
+
+ if (!supported) {
+ pr_err("MD: %s node not supported\n", client->node_name);
+ mutex_unlock(&mdesc_mutex);
+ return;
+ }
+
client->next = client_list;
client_list = client;
mdesc_for_each_node_by_name(cur_mdesc, node, client->node_name)
- client->add(cur_mdesc, node);
+ client->add(cur_mdesc, node, client->node_name);
mutex_unlock(&mdesc_mutex);
}
@@ -249,59 +332,145 @@ static const u64 *parent_cfg_handle(struct mdesc_handle *hp, u64 node)
return id;
}
+static int get_vdev_port_node_info(struct mdesc_handle *md, u64 node,
+ union md_node_info *node_info)
+{
+ const u64 *parent_cfg_hdlp;
+ const char *name;
+ const u64 *idp;
+
+ /*
+ * Virtual device nodes are distinguished by:
+ * 1. "id" property
+ * 2. "name" property
+ * 3. parent node "cfg-handle" property
+ */
+ idp = mdesc_get_property(md, node, "id", NULL);
+ name = mdesc_get_property(md, node, "name", NULL);
+ parent_cfg_hdlp = parent_cfg_handle(md, node);
+
+ if (!idp || !name || !parent_cfg_hdlp)
+ return -1;
+
+ node_info->vdev_port.id = *idp;
+ node_info->vdev_port.name = kstrdup_const(name, GFP_KERNEL);
+ node_info->vdev_port.parent_cfg_hdl = *parent_cfg_hdlp;
+
+ return 0;
+}
+
+static void rel_vdev_port_node_info(union md_node_info *node_info)
+{
+ if (node_info && node_info->vdev_port.name) {
+ kfree_const(node_info->vdev_port.name);
+ node_info->vdev_port.name = NULL;
+ }
+}
+
+static bool vdev_port_node_match(union md_node_info *a_node_info,
+ union md_node_info *b_node_info)
+{
+ if (a_node_info->vdev_port.id != b_node_info->vdev_port.id)
+ return false;
+
+ if (a_node_info->vdev_port.parent_cfg_hdl !=
+ b_node_info->vdev_port.parent_cfg_hdl)
+ return false;
+
+ if (strncmp(a_node_info->vdev_port.name,
+ b_node_info->vdev_port.name, MDESC_MAX_STR_LEN) != 0)
+ return false;
+
+ return true;
+}
+
+static int get_ds_port_node_info(struct mdesc_handle *md, u64 node,
+ union md_node_info *node_info)
+{
+ const u64 *idp;
+
+ /* DS port nodes use the "id" property to distinguish them */
+ idp = mdesc_get_property(md, node, "id", NULL);
+ if (!idp)
+ return -1;
+
+ node_info->ds_port.id = *idp;
+
+ return 0;
+}
+
+static void rel_ds_port_node_info(union md_node_info *node_info)
+{
+}
+
+static bool ds_port_node_match(union md_node_info *a_node_info,
+ union md_node_info *b_node_info)
+{
+ if (a_node_info->ds_port.id != b_node_info->ds_port.id)
+ return false;
+
+ return true;
+}
+
/* Run 'func' on nodes which are in A but not in B. */
static void invoke_on_missing(const char *name,
struct mdesc_handle *a,
struct mdesc_handle *b,
- void (*func)(struct mdesc_handle *, u64))
+ void (*func)(struct mdesc_handle *, u64,
+ const char *node_name))
{
- u64 node;
+ mdesc_node_info_get_f get_info_func;
+ mdesc_node_info_rel_f rel_info_func;
+ mdesc_node_match_f node_match_func;
+ union md_node_info a_node_info;
+ union md_node_info b_node_info;
+ bool found;
+ u64 a_node;
+ u64 b_node;
+ int rv;
- mdesc_for_each_node_by_name(a, node, name) {
- int found = 0, is_vdc_port = 0;
- const char *name_prop;
- const u64 *id;
- u64 fnode;
-
- name_prop = mdesc_get_property(a, node, "name", NULL);
- if (name_prop && !strcmp(name_prop, "vdc-port")) {
- is_vdc_port = 1;
- id = parent_cfg_handle(a, node);
- } else
- id = mdesc_get_property(a, node, "id", NULL);
-
- if (!id) {
- printk(KERN_ERR "MD: Cannot find ID for %s node.\n",
- (name_prop ? name_prop : name));
+ /*
+ * Find the get_info, rel_info and node_match ops for the given
+ * node name
+ */
+ mdesc_get_node_ops(name, &get_info_func, &rel_info_func,
+ &node_match_func);
+
+ /* If we didn't find a match, the node type is not supported */
+ if (!get_info_func || !rel_info_func || !node_match_func) {
+ pr_err("MD: %s node type is not supported\n", name);
+ return;
+ }
+
+ mdesc_for_each_node_by_name(a, a_node, name) {
+ found = false;
+
+ rv = get_info_func(a, a_node, &a_node_info);
+ if (rv != 0) {
+ pr_err("MD: Cannot find 1 or more required match properties for %s node.\n",
+ name);
continue;
}
- mdesc_for_each_node_by_name(b, fnode, name) {
- const u64 *fid;
-
- if (is_vdc_port) {
- name_prop = mdesc_get_property(b, fnode,
- "name", NULL);
- if (!name_prop ||
- strcmp(name_prop, "vdc-port"))
- continue;
- fid = parent_cfg_handle(b, fnode);
- if (!fid) {
- printk(KERN_ERR "MD: Cannot find ID "
- "for vdc-port node.\n");
- continue;
- }
- } else
- fid = mdesc_get_property(b, fnode,
- "id", NULL);
-
- if (*id == *fid) {
- found = 1;
+ /* Check each node in B for node matching a_node */
+ mdesc_for_each_node_by_name(b, b_node, name) {
+ rv = get_info_func(b, b_node, &b_node_info);
+ if (rv != 0)
+ continue;
+
+ if (node_match_func(&a_node_info, &b_node_info)) {
+ found = true;
+ rel_info_func(&b_node_info);
break;
}
+
+ rel_info_func(&b_node_info);
}
+
+ rel_info_func(&a_node_info);
+
if (!found)
- func(a, node);
+ func(a, a_node, name);
}
}
@@ -367,6 +536,76 @@ out:
mutex_unlock(&mdesc_mutex);
}
+u64 mdesc_get_node(struct mdesc_handle *hp, const char *node_name,
+ union md_node_info *node_info)
+{
+ mdesc_node_info_get_f get_info_func;
+ mdesc_node_info_rel_f rel_info_func;
+ mdesc_node_match_f node_match_func;
+ union md_node_info hp_node_info;
+ u64 hp_node;
+ int rv;
+
+ if (hp == NULL || node_name == NULL || node_info == NULL)
+ return MDESC_NODE_NULL;
+
+ /* Find the ops for the given node name */
+ mdesc_get_node_ops(node_name, &get_info_func, &rel_info_func,
+ &node_match_func);
+
+ /* If we didn't find ops for the given node name, it is not supported */
+ if (!get_info_func || !rel_info_func || !node_match_func) {
+ pr_err("MD: %s node is not supported\n", node_name);
+ return -EINVAL;
+ }
+
+ mdesc_for_each_node_by_name(hp, hp_node, node_name) {
+ rv = get_info_func(hp, hp_node, &hp_node_info);
+ if (rv != 0)
+ continue;
+
+ if (node_match_func(node_info, &hp_node_info))
+ break;
+
+ rel_info_func(&hp_node_info);
+ }
+
+ rel_info_func(&hp_node_info);
+
+ return hp_node;
+}
+EXPORT_SYMBOL(mdesc_get_node);
+
+int mdesc_get_node_info(struct mdesc_handle *hp, u64 node,
+ const char *node_name, union md_node_info *node_info)
+{
+ mdesc_node_info_get_f get_info_func;
+ int rv;
+
+ if (hp == NULL || node == MDESC_NODE_NULL ||
+ node_name == NULL || node_info == NULL)
+ return -EINVAL;
+
+ /* Find the get_info op for the given node name */
+ mdesc_get_node_ops(node_name, &get_info_func, NULL, NULL);
+
+ /* If we didn't find a get_info_func, the node name is not supported */
+ if (get_info_func == NULL) {
+ pr_err("MD: %s node is not supported\n", node_name);
+ return -EINVAL;
+ }
+
+ rv = get_info_func(hp, node, node_info);
+ if (rv != 0) {
+ pr_err("MD: Cannot find 1 or more required match properties for %s node.\n",
+ node_name);
+ return -1;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(mdesc_get_node_info);
+
static struct mdesc_elem *node_block(struct mdesc_hdr *mdesc)
{
return (struct mdesc_elem *) (mdesc + 1);
diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c
index 95e73c63c99d..048ad783ea3f 100644
--- a/arch/sparc/kernel/nmi.c
+++ b/arch/sparc/kernel/nmi.c
@@ -51,7 +51,7 @@ static DEFINE_PER_CPU(unsigned int, last_irq_sum);
static DEFINE_PER_CPU(long, alert_counter);
static DEFINE_PER_CPU(int, nmi_touch);
-void touch_nmi_watchdog(void)
+void arch_touch_nmi_watchdog(void)
{
if (atomic_read(&nmi_active)) {
int cpu;
@@ -61,10 +61,8 @@ void touch_nmi_watchdog(void)
per_cpu(nmi_touch, cpu) = 1;
}
}
-
- touch_softlockup_watchdog();
}
-EXPORT_SYMBOL(touch_nmi_watchdog);
+EXPORT_SYMBOL(arch_touch_nmi_watchdog);
static void die_nmi(const char *str, struct pt_regs *regs, int do_panic)
{
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index 7eceaa10836f..3f8670c92951 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -690,16 +690,6 @@ struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm,
return bus;
}
-void pcibios_fixup_bus(struct pci_bus *pbus)
-{
-}
-
-resource_size_t pcibios_align_resource(void *data, const struct resource *res,
- resource_size_t size, resource_size_t align)
-{
- return res->start;
-}
-
int pcibios_enable_device(struct pci_dev *dev, int mask)
{
u16 cmd, oldcmd;
diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c
index 68bec7c97cb8..9ebebf1fd93d 100644
--- a/arch/sparc/kernel/pci_sun4v.c
+++ b/arch/sparc/kernel/pci_sun4v.c
@@ -24,6 +24,7 @@
#include "pci_impl.h"
#include "iommu_common.h"
+#include "kernel.h"
#include "pci_sun4v.h"
@@ -412,12 +413,12 @@ static dma_addr_t dma_4v_map_page(struct device *dev, struct page *page,
bad:
if (printk_ratelimit())
WARN_ON(1);
- return DMA_ERROR_CODE;
+ return SPARC_MAPPING_ERROR;
iommu_map_fail:
local_irq_restore(flags);
iommu_tbl_range_free(tbl, bus_addr, npages, IOMMU_ERROR_CODE);
- return DMA_ERROR_CODE;
+ return SPARC_MAPPING_ERROR;
}
static void dma_4v_unmap_page(struct device *dev, dma_addr_t bus_addr,
@@ -590,7 +591,7 @@ static int dma_4v_map_sg(struct device *dev, struct scatterlist *sglist,
if (outcount < incount) {
outs = sg_next(outs);
- outs->dma_address = DMA_ERROR_CODE;
+ outs->dma_address = SPARC_MAPPING_ERROR;
outs->dma_length = 0;
}
@@ -607,7 +608,7 @@ iommu_map_failed:
iommu_tbl_range_free(tbl, vaddr, npages,
IOMMU_ERROR_CODE);
/* XXX demap? XXX */
- s->dma_address = DMA_ERROR_CODE;
+ s->dma_address = SPARC_MAPPING_ERROR;
s->dma_length = 0;
}
if (s == outs)
@@ -669,6 +670,28 @@ static void dma_4v_unmap_sg(struct device *dev, struct scatterlist *sglist,
local_irq_restore(flags);
}
+static int dma_4v_supported(struct device *dev, u64 device_mask)
+{
+ struct iommu *iommu = dev->archdata.iommu;
+ u64 dma_addr_mask = iommu->dma_addr_mask;
+
+ if (device_mask > DMA_BIT_MASK(32)) {
+ if (iommu->atu)
+ dma_addr_mask = iommu->atu->dma_addr_mask;
+ else
+ return 0;
+ }
+
+ if ((device_mask & dma_addr_mask) == dma_addr_mask)
+ return 1;
+ return pci64_dma_supported(to_pci_dev(dev), device_mask);
+}
+
+static int dma_4v_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return dma_addr == SPARC_MAPPING_ERROR;
+}
+
static const struct dma_map_ops sun4v_dma_ops = {
.alloc = dma_4v_alloc_coherent,
.free = dma_4v_free_coherent,
@@ -676,6 +699,8 @@ static const struct dma_map_ops sun4v_dma_ops = {
.unmap_page = dma_4v_unmap_page,
.map_sg = dma_4v_map_sg,
.unmap_sg = dma_4v_unmap_sg,
+ .dma_supported = dma_4v_supported,
+ .mapping_error = dma_4v_mapping_error,
};
static void pci_sun4v_scan_bus(struct pci_pbm_info *pbm, struct device *parent)
@@ -1241,8 +1266,6 @@ static int pci_sun4v_probe(struct platform_device *op)
* ATU group, but ATU hcalls won't be available.
*/
hv_atu = false;
- pr_err(PFX "Could not register hvapi ATU err=%d\n",
- err);
} else {
pr_info(PFX "Registered hvapi ATU major[%lu] minor[%lu]\n",
vatu_major, vatu_minor);
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index a38787b84322..4a133c052af8 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -602,7 +602,7 @@ void pcibios_fixup_bus(struct pci_bus *bus)
{
struct pci_dev *dev;
int i, has_io, has_mem;
- unsigned int cmd;
+ unsigned int cmd = 0;
struct linux_pcic *pcic;
/* struct linux_pbm_info* pbm = &pcic->pbm; */
int node;
@@ -746,12 +746,6 @@ static void watchdog_reset() {
}
#endif
-resource_size_t pcibios_align_resource(void *data, const struct resource *res,
- resource_size_t size, resource_size_t align)
-{
- return res->start;
-}
-
int pcibios_enable_device(struct pci_dev *pdev, int mask)
{
return 0;
diff --git a/arch/sparc/kernel/pmc.c b/arch/sparc/kernel/pmc.c
index f12b23f7b515..3b26cf62df6d 100644
--- a/arch/sparc/kernel/pmc.c
+++ b/arch/sparc/kernel/pmc.c
@@ -71,7 +71,7 @@ static int pmc_probe(struct platform_device *op)
return 0;
}
-static struct of_device_id pmc_match[] = {
+static const struct of_device_id pmc_match[] = {
{
.name = PMC_OBPNAME,
},
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index b96104da5bd6..44e5da405f96 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -77,8 +77,13 @@ void arch_cpu_idle(void)
: "=&r" (pstate)
: "i" (PSTATE_IE));
- if (!need_resched() && !cpu_is_offline(smp_processor_id()))
+ if (!need_resched() && !cpu_is_offline(smp_processor_id())) {
sun4v_cpu_yield();
+ /* If resumed by cpu_poke then we need to explicitly
+ * call scheduler_ipi().
+ */
+ scheduler_poke();
+ }
/* Re-enable interrupts. */
__asm__ __volatile__(
diff --git a/arch/sparc/kernel/prom_64.c b/arch/sparc/kernel/prom_64.c
index 20cc5d80a471..baeaeed64993 100644
--- a/arch/sparc/kernel/prom_64.c
+++ b/arch/sparc/kernel/prom_64.c
@@ -381,7 +381,7 @@ bool arch_find_n_match_cpu_physical_id(struct device_node *cpun,
int this_cpu_id;
/* On hypervisor based platforms we interrogate the 'reg'
- * property. On everything else we look for a 'upa-portis',
+ * property. On everything else we look for a 'upa-portid',
* 'portid', or 'cpuid' property.
*/
diff --git a/arch/sparc/kernel/rtrap_64.S b/arch/sparc/kernel/rtrap_64.S
index 709a82ebd294..dff86fad0a1f 100644
--- a/arch/sparc/kernel/rtrap_64.S
+++ b/arch/sparc/kernel/rtrap_64.S
@@ -224,10 +224,19 @@ rt_continue: ldx [%sp + PTREGS_OFF + PT_V9_G1], %g1
rdpr %otherwin, %l2
srl %l1, 3, %l1
- wrpr %l2, %g0, %canrestore
+661: wrpr %l2, %g0, %canrestore
+ .section .fast_win_ctrl_1insn_patch, "ax"
+ .word 661b
+ .word 0x89880000 ! normalw
+ .previous
+
wrpr %l1, %g0, %wstate
brnz,pt %l2, user_rtt_restore
- wrpr %g0, %g0, %otherwin
+661: wrpr %g0, %g0, %otherwin
+ .section .fast_win_ctrl_1insn_patch, "ax"
+ .word 661b
+ nop
+ .previous
ldx [%g6 + TI_FLAGS], %g3
wr %g0, ASI_AIUP, %asi
diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c
index 422b17880955..db4c4d7e28a0 100644
--- a/arch/sparc/kernel/setup_64.c
+++ b/arch/sparc/kernel/setup_64.c
@@ -95,7 +95,7 @@ static struct console prom_early_console = {
.index = -1,
};
-/*
+/*
* Process kernel command line switches that are specific to the
* SPARC or that require special low-level processing.
*/
@@ -288,10 +288,22 @@ static void __init sun4v_patch(void)
sun4v_patch_2insn_range(&__sun4v_2insn_patch,
&__sun4v_2insn_patch_end);
- if (sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
- sun4v_chip_type == SUN4V_CHIP_SPARC_SN)
+
+ switch (sun4v_chip_type) {
+ case SUN4V_CHIP_SPARC_M7:
+ case SUN4V_CHIP_SPARC_M8:
+ case SUN4V_CHIP_SPARC_SN:
sun_m7_patch_2insn_range(&__sun_m7_2insn_patch,
&__sun_m7_2insn_patch_end);
+ break;
+ default:
+ break;
+ }
+
+ if (sun4v_chip_type != SUN4V_CHIP_NIAGARA1) {
+ sun4v_patch_1insn_range(&__fast_win_ctrl_1insn_patch,
+ &__fast_win_ctrl_1insn_patch_end);
+ }
sun4v_hvapi_init();
}
@@ -356,6 +368,7 @@ void __init start_early_boot(void)
check_if_starfire();
per_cpu_patch();
sun4v_patch();
+ smp_init_cpu_poke();
cpu = hard_smp_processor_id();
if (cpu >= NR_CPUS) {
@@ -365,6 +378,7 @@ void __init start_early_boot(void)
}
current_thread_info()->cpu = cpu;
+ time_init_early();
prom_init_report();
start_kernel();
}
@@ -528,6 +542,7 @@ static void __init init_sparc64_elf_hwcap(void)
sun4v_chip_type == SUN4V_CHIP_NIAGARA5 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M6 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
+ sun4v_chip_type == SUN4V_CHIP_SPARC_M8 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_SN ||
sun4v_chip_type == SUN4V_CHIP_SPARC64X)
cap |= HWCAP_SPARC_BLKINIT;
@@ -537,6 +552,7 @@ static void __init init_sparc64_elf_hwcap(void)
sun4v_chip_type == SUN4V_CHIP_NIAGARA5 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M6 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
+ sun4v_chip_type == SUN4V_CHIP_SPARC_M8 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_SN ||
sun4v_chip_type == SUN4V_CHIP_SPARC64X)
cap |= HWCAP_SPARC_N2;
@@ -567,6 +583,7 @@ static void __init init_sparc64_elf_hwcap(void)
sun4v_chip_type == SUN4V_CHIP_NIAGARA5 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M6 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
+ sun4v_chip_type == SUN4V_CHIP_SPARC_M8 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_SN ||
sun4v_chip_type == SUN4V_CHIP_SPARC64X)
cap |= (AV_SPARC_VIS | AV_SPARC_VIS2 |
@@ -577,6 +594,7 @@ static void __init init_sparc64_elf_hwcap(void)
sun4v_chip_type == SUN4V_CHIP_NIAGARA5 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M6 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
+ sun4v_chip_type == SUN4V_CHIP_SPARC_M8 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_SN ||
sun4v_chip_type == SUN4V_CHIP_SPARC64X)
cap |= (AV_SPARC_VIS3 | AV_SPARC_HPC |
@@ -639,7 +657,7 @@ void __init setup_arch(char **cmdline_p)
#ifdef CONFIG_BLK_DEV_RAM
rd_image_start = ram_flags & RAMDISK_IMAGE_START_MASK;
rd_prompt = ((ram_flags & RAMDISK_PROMPT_FLAG) != 0);
- rd_doload = ((ram_flags & RAMDISK_LOAD_FLAG) != 0);
+ rd_doload = ((ram_flags & RAMDISK_LOAD_FLAG) != 0);
#endif
task_thread_info(&init_task)->kregs = &fake_swapper_regs;
@@ -648,7 +666,7 @@ void __init setup_arch(char **cmdline_p)
if (!ic_set_manually) {
phandle chosen = prom_finddevice("/chosen");
u32 cl, sv, gw;
-
+
cl = prom_getintdefault (chosen, "client-ip", 0);
sv = prom_getintdefault (chosen, "server-ip", 0);
gw = prom_getintdefault (chosen, "gateway-ip", 0);
diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c
index b4096bb665b2..0e4c08c45a37 100644
--- a/arch/sparc/kernel/signal32.c
+++ b/arch/sparc/kernel/signal32.c
@@ -85,34 +85,34 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
at the same time. */
err = __put_user(from->si_signo, &to->si_signo);
err |= __put_user(from->si_errno, &to->si_errno);
- err |= __put_user((short)from->si_code, &to->si_code);
+ err |= __put_user(from->si_code, &to->si_code);
if (from->si_code < 0)
err |= __copy_to_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE);
else {
- switch (from->si_code >> 16) {
- case __SI_TIMER >> 16:
+ switch (siginfo_layout(from->si_signo, from->si_code)) {
+ case SIL_TIMER:
err |= __put_user(from->si_tid, &to->si_tid);
err |= __put_user(from->si_overrun, &to->si_overrun);
err |= __put_user(from->si_int, &to->si_int);
break;
- case __SI_CHLD >> 16:
+ case SIL_CHLD:
err |= __put_user(from->si_utime, &to->si_utime);
err |= __put_user(from->si_stime, &to->si_stime);
err |= __put_user(from->si_status, &to->si_status);
default:
+ case SIL_KILL:
err |= __put_user(from->si_pid, &to->si_pid);
err |= __put_user(from->si_uid, &to->si_uid);
break;
- case __SI_FAULT >> 16:
+ case SIL_FAULT:
err |= __put_user(from->si_trapno, &to->si_trapno);
err |= __put_user((unsigned long)from->si_addr, &to->si_addr);
break;
- case __SI_POLL >> 16:
+ case SIL_POLL:
err |= __put_user(from->si_band, &to->si_band);
err |= __put_user(from->si_fd, &to->si_fd);
break;
- case __SI_RT >> 16: /* This is not generated by the kernel as of now. */
- case __SI_MESGQ >> 16:
+ case SIL_RT:
err |= __put_user(from->si_pid, &to->si_pid);
err |= __put_user(from->si_uid, &to->si_uid);
err |= __put_user(from->si_int, &to->si_int);
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index fdf31040a7dc..4898329970c5 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -74,6 +74,9 @@ EXPORT_SYMBOL(cpu_core_sib_cache_map);
static cpumask_t smp_commenced_mask;
+static DEFINE_PER_CPU(bool, poke);
+static bool cpu_poke;
+
void smp_info(struct seq_file *m)
{
int i;
@@ -622,22 +625,48 @@ retry:
}
}
-/* Multi-cpu list version. */
+#define CPU_MONDO_COUNTER(cpuid) (cpu_mondo_counter[cpuid])
+#define MONDO_USEC_WAIT_MIN 2
+#define MONDO_USEC_WAIT_MAX 100
+#define MONDO_RETRY_LIMIT 500000
+
+/* Multi-cpu list version.
+ *
+ * Deliver xcalls to 'cnt' number of cpus in 'cpu_list'.
+ * Sometimes not all cpus receive the mondo, requiring us to re-send
+ * the mondo until all cpus have received, or cpus are truly stuck
+ * unable to receive mondo, and we timeout.
+ * Occasionally a target cpu strand is borrowed briefly by hypervisor to
+ * perform guest service, such as PCIe error handling. Consider the
+ * service time, 1 second overall wait is reasonable for 1 cpu.
+ * Here two in-between mondo check wait time are defined: 2 usec for
+ * single cpu quick turn around and up to 100usec for large cpu count.
+ * Deliver mondo to large number of cpus could take longer, we adjusts
+ * the retry count as long as target cpus are making forward progress.
+ */
static void hypervisor_xcall_deliver(struct trap_per_cpu *tb, int cnt)
{
- int retries, this_cpu, prev_sent, i, saw_cpu_error;
+ int this_cpu, tot_cpus, prev_sent, i, rem;
+ int usec_wait, retries, tot_retries;
+ u16 first_cpu = 0xffff;
+ unsigned long xc_rcvd = 0;
unsigned long status;
+ int ecpuerror_id = 0;
+ int enocpu_id = 0;
u16 *cpu_list;
+ u16 cpu;
this_cpu = smp_processor_id();
-
cpu_list = __va(tb->cpu_list_pa);
-
- saw_cpu_error = 0;
- retries = 0;
+ usec_wait = cnt * MONDO_USEC_WAIT_MIN;
+ if (usec_wait > MONDO_USEC_WAIT_MAX)
+ usec_wait = MONDO_USEC_WAIT_MAX;
+ retries = tot_retries = 0;
+ tot_cpus = cnt;
prev_sent = 0;
+
do {
- int forward_progress, n_sent;
+ int n_sent, mondo_delivered, target_cpu_busy;
status = sun4v_cpu_mondo_send(cnt,
tb->cpu_list_pa,
@@ -645,94 +674,113 @@ static void hypervisor_xcall_deliver(struct trap_per_cpu *tb, int cnt)
/* HV_EOK means all cpus received the xcall, we're done. */
if (likely(status == HV_EOK))
- break;
+ goto xcall_done;
+
+ /* If not these non-fatal errors, panic */
+ if (unlikely((status != HV_EWOULDBLOCK) &&
+ (status != HV_ECPUERROR) &&
+ (status != HV_ENOCPU)))
+ goto fatal_errors;
/* First, see if we made any forward progress.
*
+ * Go through the cpu_list, count the target cpus that have
+ * received our mondo (n_sent), and those that did not (rem).
+ * Re-pack cpu_list with the cpus remain to be retried in the
+ * front - this simplifies tracking the truly stalled cpus.
+ *
* The hypervisor indicates successful sends by setting
* cpu list entries to the value 0xffff.
+ *
+ * EWOULDBLOCK means some target cpus did not receive the
+ * mondo and retry usually helps.
+ *
+ * ECPUERROR means at least one target cpu is in error state,
+ * it's usually safe to skip the faulty cpu and retry.
+ *
+ * ENOCPU means one of the target cpu doesn't belong to the
+ * domain, perhaps offlined which is unexpected, but not
+ * fatal and it's okay to skip the offlined cpu.
*/
+ rem = 0;
n_sent = 0;
for (i = 0; i < cnt; i++) {
- if (likely(cpu_list[i] == 0xffff))
+ cpu = cpu_list[i];
+ if (likely(cpu == 0xffff)) {
n_sent++;
+ } else if ((status == HV_ECPUERROR) &&
+ (sun4v_cpu_state(cpu) == HV_CPU_STATE_ERROR)) {
+ ecpuerror_id = cpu + 1;
+ } else if (status == HV_ENOCPU && !cpu_online(cpu)) {
+ enocpu_id = cpu + 1;
+ } else {
+ cpu_list[rem++] = cpu;
+ }
}
- forward_progress = 0;
- if (n_sent > prev_sent)
- forward_progress = 1;
+ /* No cpu remained, we're done. */
+ if (rem == 0)
+ break;
- prev_sent = n_sent;
+ /* Otherwise, update the cpu count for retry. */
+ cnt = rem;
- /* If we get a HV_ECPUERROR, then one or more of the cpus
- * in the list are in error state. Use the cpu_state()
- * hypervisor call to find out which cpus are in error state.
+ /* Record the overall number of mondos received by the
+ * first of the remaining cpus.
*/
- if (unlikely(status == HV_ECPUERROR)) {
- for (i = 0; i < cnt; i++) {
- long err;
- u16 cpu;
+ if (first_cpu != cpu_list[0]) {
+ first_cpu = cpu_list[0];
+ xc_rcvd = CPU_MONDO_COUNTER(first_cpu);
+ }
- cpu = cpu_list[i];
- if (cpu == 0xffff)
- continue;
+ /* Was any mondo delivered successfully? */
+ mondo_delivered = (n_sent > prev_sent);
+ prev_sent = n_sent;
- err = sun4v_cpu_state(cpu);
- if (err == HV_CPU_STATE_ERROR) {
- saw_cpu_error = (cpu + 1);
- cpu_list[i] = 0xffff;
- }
- }
- } else if (unlikely(status != HV_EWOULDBLOCK))
- goto fatal_mondo_error;
+ /* or, was any target cpu busy processing other mondos? */
+ target_cpu_busy = (xc_rcvd < CPU_MONDO_COUNTER(first_cpu));
+ xc_rcvd = CPU_MONDO_COUNTER(first_cpu);
- /* Don't bother rewriting the CPU list, just leave the
- * 0xffff and non-0xffff entries in there and the
- * hypervisor will do the right thing.
- *
- * Only advance timeout state if we didn't make any
- * forward progress.
+ /* Retry count is for no progress. If we're making progress,
+ * reset the retry count.
*/
- if (unlikely(!forward_progress)) {
- if (unlikely(++retries > 10000))
- goto fatal_mondo_timeout;
-
- /* Delay a little bit to let other cpus catch up
- * on their cpu mondo queue work.
- */
- udelay(2 * cnt);
+ if (likely(mondo_delivered || target_cpu_busy)) {
+ tot_retries += retries;
+ retries = 0;
+ } else if (unlikely(retries > MONDO_RETRY_LIMIT)) {
+ goto fatal_mondo_timeout;
}
- } while (1);
- if (unlikely(saw_cpu_error))
- goto fatal_mondo_cpu_error;
+ /* Delay a little bit to let other cpus catch up on
+ * their cpu mondo queue work.
+ */
+ if (!mondo_delivered)
+ udelay(usec_wait);
- return;
+ retries++;
+ } while (1);
-fatal_mondo_cpu_error:
- printk(KERN_CRIT "CPU[%d]: SUN4V mondo cpu error, some target cpus "
- "(including %d) were in error state\n",
- this_cpu, saw_cpu_error - 1);
+xcall_done:
+ if (unlikely(ecpuerror_id > 0)) {
+ pr_crit("CPU[%d]: SUN4V mondo cpu error, target cpu(%d) was in error state\n",
+ this_cpu, ecpuerror_id - 1);
+ } else if (unlikely(enocpu_id > 0)) {
+ pr_crit("CPU[%d]: SUN4V mondo cpu error, target cpu(%d) does not belong to the domain\n",
+ this_cpu, enocpu_id - 1);
+ }
return;
+fatal_errors:
+ /* fatal errors include bad alignment, etc */
+ pr_crit("CPU[%d]: Args were cnt(%d) cpulist_pa(%lx) mondo_block_pa(%lx)\n",
+ this_cpu, tot_cpus, tb->cpu_list_pa, tb->cpu_mondo_block_pa);
+ panic("Unexpected SUN4V mondo error %lu\n", status);
+
fatal_mondo_timeout:
- printk(KERN_CRIT "CPU[%d]: SUN4V mondo timeout, no forward "
- " progress after %d retries.\n",
- this_cpu, retries);
- goto dump_cpu_list_and_out;
-
-fatal_mondo_error:
- printk(KERN_CRIT "CPU[%d]: Unexpected SUN4V mondo error %lu\n",
- this_cpu, status);
- printk(KERN_CRIT "CPU[%d]: Args were cnt(%d) cpulist_pa(%lx) "
- "mondo_block_pa(%lx)\n",
- this_cpu, cnt, tb->cpu_list_pa, tb->cpu_mondo_block_pa);
-
-dump_cpu_list_and_out:
- printk(KERN_CRIT "CPU[%d]: CPU list [ ", this_cpu);
- for (i = 0; i < cnt; i++)
- printk("%u ", cpu_list[i]);
- printk("]\n");
+ /* some cpus being non-responsive to the cpu mondo */
+ pr_crit("CPU[%d]: SUN4V mondo timeout, cpu(%d) made no forward progress after %d retries. Total target cpus(%d).\n",
+ this_cpu, first_cpu, (tot_retries + retries), tot_cpus);
+ panic("SUN4V mondo timeout panic\n");
}
static void (*xcall_deliver_impl)(struct trap_per_cpu *, int);
@@ -1394,15 +1442,86 @@ void __init smp_cpus_done(unsigned int max_cpus)
{
}
+static void send_cpu_ipi(int cpu)
+{
+ xcall_deliver((u64) &xcall_receive_signal,
+ 0, 0, cpumask_of(cpu));
+}
+
+void scheduler_poke(void)
+{
+ if (!cpu_poke)
+ return;
+
+ if (!__this_cpu_read(poke))
+ return;
+
+ __this_cpu_write(poke, false);
+ set_softint(1 << PIL_SMP_RECEIVE_SIGNAL);
+}
+
+static unsigned long send_cpu_poke(int cpu)
+{
+ unsigned long hv_err;
+
+ per_cpu(poke, cpu) = true;
+ hv_err = sun4v_cpu_poke(cpu);
+ if (hv_err != HV_EOK) {
+ per_cpu(poke, cpu) = false;
+ pr_err_ratelimited("%s: sun4v_cpu_poke() fails err=%lu\n",
+ __func__, hv_err);
+ }
+
+ return hv_err;
+}
+
void smp_send_reschedule(int cpu)
{
if (cpu == smp_processor_id()) {
WARN_ON_ONCE(preemptible());
set_softint(1 << PIL_SMP_RECEIVE_SIGNAL);
- } else {
- xcall_deliver((u64) &xcall_receive_signal,
- 0, 0, cpumask_of(cpu));
+ return;
}
+
+ /* Use cpu poke to resume idle cpu if supported. */
+ if (cpu_poke && idle_cpu(cpu)) {
+ unsigned long ret;
+
+ ret = send_cpu_poke(cpu);
+ if (ret == HV_EOK)
+ return;
+ }
+
+ /* Use IPI in following cases:
+ * - cpu poke not supported
+ * - cpu not idle
+ * - send_cpu_poke() returns with error
+ */
+ send_cpu_ipi(cpu);
+}
+
+void smp_init_cpu_poke(void)
+{
+ unsigned long major;
+ unsigned long minor;
+ int ret;
+
+ if (tlb_type != hypervisor)
+ return;
+
+ ret = sun4v_hvapi_get(HV_GRP_CORE, &major, &minor);
+ if (ret) {
+ pr_debug("HV_GRP_CORE is not registered\n");
+ return;
+ }
+
+ if (major == 1 && minor >= 6) {
+ /* CPU POKE is registered. */
+ cpu_poke = true;
+ return;
+ }
+
+ pr_debug("CPU_POKE not supported\n");
}
void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs)
diff --git a/arch/sparc/kernel/sun4v_ivec.S b/arch/sparc/kernel/sun4v_ivec.S
index 559bc5e9c199..34631995859a 100644
--- a/arch/sparc/kernel/sun4v_ivec.S
+++ b/arch/sparc/kernel/sun4v_ivec.S
@@ -26,6 +26,21 @@ sun4v_cpu_mondo:
ldxa [%g0] ASI_SCRATCHPAD, %g4
sub %g4, TRAP_PER_CPU_FAULT_INFO, %g4
+ /* Get smp_processor_id() into %g3 */
+ sethi %hi(trap_block), %g5
+ or %g5, %lo(trap_block), %g5
+ sub %g4, %g5, %g3
+ srlx %g3, TRAP_BLOCK_SZ_SHIFT, %g3
+
+ /* Increment cpu_mondo_counter[smp_processor_id()] */
+ sethi %hi(cpu_mondo_counter), %g5
+ or %g5, %lo(cpu_mondo_counter), %g5
+ sllx %g3, 3, %g3
+ add %g5, %g3, %g5
+ ldx [%g5], %g3
+ add %g3, 1, %g3
+ stx %g3, [%g5]
+
/* Get CPU mondo queue base phys address into %g7. */
ldx [%g4 + TRAP_PER_CPU_CPU_MONDO_PA], %g7
diff --git a/arch/sparc/kernel/time_32.c b/arch/sparc/kernel/time_32.c
index 9f575dfc2e41..2ce2e7b2abbb 100644
--- a/arch/sparc/kernel/time_32.c
+++ b/arch/sparc/kernel/time_32.c
@@ -298,7 +298,7 @@ static int clock_probe(struct platform_device *op)
return 0;
}
-static struct of_device_id clock_match[] = {
+static const struct of_device_id clock_match[] = {
{
.name = "eeprom",
},
diff --git a/arch/sparc/kernel/time_64.c b/arch/sparc/kernel/time_64.c
index 98d05de8da66..564f0e46ffd4 100644
--- a/arch/sparc/kernel/time_64.c
+++ b/arch/sparc/kernel/time_64.c
@@ -32,7 +32,6 @@
#include <linux/kernel_stat.h>
#include <linux/clockchips.h>
#include <linux/clocksource.h>
-#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/ftrace.h>
@@ -47,14 +46,13 @@
#include <asm/cpudata.h>
#include <linux/uaccess.h>
#include <asm/irq_regs.h>
+#include <asm/cacheflush.h>
#include "entry.h"
+#include "kernel.h"
DEFINE_SPINLOCK(rtc_lock);
-#define TICK_PRIV_BIT (1UL << 63)
-#define TICKCMP_IRQ_BIT (1UL << 63)
-
#ifdef CONFIG_SMP
unsigned long profile_pc(struct pt_regs *regs)
{
@@ -164,13 +162,44 @@ static unsigned long tick_add_tick(unsigned long adj)
return new_tick;
}
-static struct sparc64_tick_ops tick_operations __read_mostly = {
+/* Searches for cpu clock frequency with given cpuid in OpenBoot tree */
+static unsigned long cpuid_to_freq(phandle node, int cpuid)
+{
+ bool is_cpu_node = false;
+ unsigned long freq = 0;
+ char type[128];
+
+ if (!node)
+ return freq;
+
+ if (prom_getproperty(node, "device_type", type, sizeof(type)) != -1)
+ is_cpu_node = (strcmp(type, "cpu") == 0);
+
+ /* try upa-portid then cpuid to get cpuid, see prom_64.c */
+ if (is_cpu_node && (prom_getint(node, "upa-portid") == cpuid ||
+ prom_getint(node, "cpuid") == cpuid))
+ freq = prom_getintdefault(node, "clock-frequency", 0);
+ if (!freq)
+ freq = cpuid_to_freq(prom_getchild(node), cpuid);
+ if (!freq)
+ freq = cpuid_to_freq(prom_getsibling(node), cpuid);
+
+ return freq;
+}
+
+static unsigned long tick_get_frequency(void)
+{
+ return cpuid_to_freq(prom_root_node, hard_smp_processor_id());
+}
+
+static struct sparc64_tick_ops tick_operations __cacheline_aligned = {
.name = "tick",
.init_tick = tick_init_tick,
.disable_irq = tick_disable_irq,
.get_tick = tick_get_tick,
.add_tick = tick_add_tick,
.add_compare = tick_add_compare,
+ .get_frequency = tick_get_frequency,
.softint_mask = 1UL << 0,
};
@@ -250,6 +279,11 @@ static int stick_add_compare(unsigned long adj)
return ((long)(new_tick - (orig_tick+adj))) > 0L;
}
+static unsigned long stick_get_frequency(void)
+{
+ return prom_getintdefault(prom_root_node, "stick-frequency", 0);
+}
+
static struct sparc64_tick_ops stick_operations __read_mostly = {
.name = "stick",
.init_tick = stick_init_tick,
@@ -257,6 +291,7 @@ static struct sparc64_tick_ops stick_operations __read_mostly = {
.get_tick = stick_get_tick,
.add_tick = stick_add_tick,
.add_compare = stick_add_compare,
+ .get_frequency = stick_get_frequency,
.softint_mask = 1UL << 16,
};
@@ -277,9 +312,6 @@ static struct sparc64_tick_ops stick_operations __read_mostly = {
* 2) write high
* 3) write low
*/
-#define HBIRD_STICKCMP_ADDR 0x1fe0000f060UL
-#define HBIRD_STICK_ADDR 0x1fe0000f070UL
-
static unsigned long __hbird_read_stick(void)
{
unsigned long ret, tmp1, tmp2, tmp3;
@@ -381,6 +413,11 @@ static int hbtick_add_compare(unsigned long adj)
return ((long)(val2 - val)) > 0L;
}
+static unsigned long hbtick_get_frequency(void)
+{
+ return prom_getintdefault(prom_root_node, "stick-frequency", 0);
+}
+
static struct sparc64_tick_ops hbtick_operations __read_mostly = {
.name = "hbtick",
.init_tick = hbtick_init_tick,
@@ -388,11 +425,10 @@ static struct sparc64_tick_ops hbtick_operations __read_mostly = {
.get_tick = hbtick_get_tick,
.add_tick = hbtick_add_tick,
.add_compare = hbtick_add_compare,
+ .get_frequency = hbtick_get_frequency,
.softint_mask = 1UL << 0,
};
-static unsigned long timer_ticks_per_nsec_quotient __read_mostly;
-
unsigned long cmos_regs;
EXPORT_SYMBOL(cmos_regs);
@@ -582,34 +618,17 @@ static int __init clock_init(void)
*/
fs_initcall(clock_init);
-/* This is gets the master TICK_INT timer going. */
-static unsigned long sparc64_init_timers(void)
+/* Return true if this is Hummingbird, aka Ultra-IIe */
+static bool is_hummingbird(void)
{
- struct device_node *dp;
- unsigned long freq;
+ unsigned long ver, manuf, impl;
- dp = of_find_node_by_path("/");
- if (tlb_type == spitfire) {
- unsigned long ver, manuf, impl;
-
- __asm__ __volatile__ ("rdpr %%ver, %0"
- : "=&r" (ver));
- manuf = ((ver >> 48) & 0xffff);
- impl = ((ver >> 32) & 0xffff);
- if (manuf == 0x17 && impl == 0x13) {
- /* Hummingbird, aka Ultra-IIe */
- tick_ops = &hbtick_operations;
- freq = of_getintprop_default(dp, "stick-frequency", 0);
- } else {
- tick_ops = &tick_operations;
- freq = local_cpu_data().clock_tick;
- }
- } else {
- tick_ops = &stick_operations;
- freq = of_getintprop_default(dp, "stick-frequency", 0);
- }
+ __asm__ __volatile__ ("rdpr %%ver, %0"
+ : "=&r" (ver));
+ manuf = ((ver >> 48) & 0xffff);
+ impl = ((ver >> 32) & 0xffff);
- return freq;
+ return (manuf == 0x17 && impl == 0x13);
}
struct freq_table {
@@ -671,12 +690,12 @@ core_initcall(register_sparc64_cpufreq_notifier);
static int sparc64_next_event(unsigned long delta,
struct clock_event_device *evt)
{
- return tick_ops->add_compare(delta) ? -ETIME : 0;
+ return tick_operations.add_compare(delta) ? -ETIME : 0;
}
static int sparc64_timer_shutdown(struct clock_event_device *evt)
{
- tick_ops->disable_irq();
+ tick_operations.disable_irq();
return 0;
}
@@ -693,7 +712,7 @@ static DEFINE_PER_CPU(struct clock_event_device, sparc64_events);
void __irq_entry timer_interrupt(int irq, struct pt_regs *regs)
{
struct pt_regs *old_regs = set_irq_regs(regs);
- unsigned long tick_mask = tick_ops->softint_mask;
+ unsigned long tick_mask = tick_operations.softint_mask;
int cpu = smp_processor_id();
struct clock_event_device *evt = &per_cpu(sparc64_events, cpu);
@@ -728,7 +747,7 @@ void setup_sparc64_timer(void)
: "=r" (pstate)
: "i" (PSTATE_IE));
- tick_ops->init_tick();
+ tick_operations.init_tick();
/* Restore PSTATE_IE. */
__asm__ __volatile__("wrpr %0, 0x0, %%pstate"
@@ -755,12 +774,10 @@ static unsigned long tb_ticks_per_usec __read_mostly;
void __delay(unsigned long loops)
{
- unsigned long bclock, now;
+ unsigned long bclock = get_tick();
- bclock = tick_ops->get_tick();
- do {
- now = tick_ops->get_tick();
- } while ((now-bclock) < loops);
+ while ((get_tick() - bclock) < loops)
+ ;
}
EXPORT_SYMBOL(__delay);
@@ -772,26 +789,71 @@ EXPORT_SYMBOL(udelay);
static u64 clocksource_tick_read(struct clocksource *cs)
{
- return tick_ops->get_tick();
+ return get_tick();
+}
+
+static void __init get_tick_patch(void)
+{
+ unsigned int *addr, *instr, i;
+ struct get_tick_patch *p;
+
+ if (tlb_type == spitfire && is_hummingbird())
+ return;
+
+ for (p = &__get_tick_patch; p < &__get_tick_patch_end; p++) {
+ instr = (tlb_type == spitfire) ? p->tick : p->stick;
+ addr = (unsigned int *)(unsigned long)p->addr;
+ for (i = 0; i < GET_TICK_NINSTR; i++) {
+ addr[i] = instr[i];
+ /* ensure that address is modified before flush */
+ wmb();
+ flushi(&addr[i]);
+ }
+ }
+}
+
+static void init_tick_ops(struct sparc64_tick_ops *ops)
+{
+ unsigned long freq, quotient, tick;
+
+ freq = ops->get_frequency();
+ quotient = clocksource_hz2mult(freq, SPARC64_NSEC_PER_CYC_SHIFT);
+ tick = ops->get_tick();
+
+ ops->offset = (tick * quotient) >> SPARC64_NSEC_PER_CYC_SHIFT;
+ ops->ticks_per_nsec_quotient = quotient;
+ ops->frequency = freq;
+ tick_operations = *ops;
+ get_tick_patch();
+}
+
+void __init time_init_early(void)
+{
+ if (tlb_type == spitfire) {
+ if (is_hummingbird())
+ init_tick_ops(&hbtick_operations);
+ else
+ init_tick_ops(&tick_operations);
+ } else {
+ init_tick_ops(&stick_operations);
+ }
}
void __init time_init(void)
{
- unsigned long freq = sparc64_init_timers();
+ unsigned long freq;
+ freq = tick_operations.frequency;
tb_ticks_per_usec = freq / USEC_PER_SEC;
- timer_ticks_per_nsec_quotient =
- clocksource_hz2mult(freq, SPARC64_NSEC_PER_CYC_SHIFT);
-
- clocksource_tick.name = tick_ops->name;
+ clocksource_tick.name = tick_operations.name;
clocksource_tick.read = clocksource_tick_read;
clocksource_register_hz(&clocksource_tick, freq);
printk("clocksource: mult[%x] shift[%d]\n",
clocksource_tick.mult, clocksource_tick.shift);
- sparc64_clockevent.name = tick_ops->name;
+ sparc64_clockevent.name = tick_operations.name;
clockevents_calc_mult_shift(&sparc64_clockevent, freq, 4);
sparc64_clockevent.max_delta_ns =
@@ -809,14 +871,21 @@ void __init time_init(void)
unsigned long long sched_clock(void)
{
- unsigned long ticks = tick_ops->get_tick();
+ unsigned long quotient = tick_operations.ticks_per_nsec_quotient;
+ unsigned long offset = tick_operations.offset;
+
+ /* Use barrier so the compiler emits the loads first and overlaps load
+ * latency with reading tick, because reading %tick/%stick is a
+ * post-sync instruction that will flush and restart subsequent
+ * instructions after it commits.
+ */
+ barrier();
- return (ticks * timer_ticks_per_nsec_quotient)
- >> SPARC64_NSEC_PER_CYC_SHIFT;
+ return ((get_tick() * quotient) >> SPARC64_NSEC_PER_CYC_SHIFT) - offset;
}
int read_current_timer(unsigned long *timer_val)
{
- *timer_val = tick_ops->get_tick();
+ *timer_val = get_tick();
return 0;
}
diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c
index 466d4aed06c7..581cf35ee7e3 100644
--- a/arch/sparc/kernel/traps_32.c
+++ b/arch/sparc/kernel/traps_32.c
@@ -306,7 +306,7 @@ void do_fpe_trap(struct pt_regs *regs, unsigned long pc, unsigned long npc,
info.si_errno = 0;
info.si_addr = (void __user *)pc;
info.si_trapno = 0;
- info.si_code = __SI_FAULT;
+ info.si_code = FPE_FIXME;
if ((fsr & 0x1c000) == (1 << 14)) {
if (fsr & 0x10)
info.si_code = FPE_FLTINV;
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index 196ee5eb4d48..0a56dc257cb9 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -265,6 +265,45 @@ void sun4v_insn_access_exception_tl1(struct pt_regs *regs, unsigned long addr, u
sun4v_insn_access_exception(regs, addr, type_ctx);
}
+bool is_no_fault_exception(struct pt_regs *regs)
+{
+ unsigned char asi;
+ u32 insn;
+
+ if (get_user(insn, (u32 __user *)regs->tpc) == -EFAULT)
+ return false;
+
+ /*
+ * Must do a little instruction decoding here in order to
+ * decide on a course of action. The bits of interest are:
+ * insn[31:30] = op, where 3 indicates the load/store group
+ * insn[24:19] = op3, which identifies individual opcodes
+ * insn[13] indicates an immediate offset
+ * op3[4]=1 identifies alternate space instructions
+ * op3[5:4]=3 identifies floating point instructions
+ * op3[2]=1 identifies stores
+ * See "Opcode Maps" in the appendix of any Sparc V9
+ * architecture spec for full details.
+ */
+ if ((insn & 0xc0800000) == 0xc0800000) { /* op=3, op3[4]=1 */
+ if (insn & 0x2000) /* immediate offset */
+ asi = (regs->tstate >> 24); /* saved %asi */
+ else
+ asi = (insn >> 5); /* immediate asi */
+ if ((asi & 0xf2) == ASI_PNF) {
+ if (insn & 0x1000000) { /* op3[5:4]=3 */
+ handle_ldf_stq(insn, regs);
+ return true;
+ } else if (insn & 0x200000) { /* op3[2], stores */
+ return false;
+ }
+ handle_ld_nf(insn, regs);
+ return true;
+ }
+ }
+ return false;
+}
+
void spitfire_data_access_exception(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar)
{
enum ctx_state prev_state = exception_enter();
@@ -296,6 +335,9 @@ void spitfire_data_access_exception(struct pt_regs *regs, unsigned long sfsr, un
die_if_kernel("Dax", regs);
}
+ if (is_no_fault_exception(regs))
+ return;
+
info.si_signo = SIGSEGV;
info.si_errno = 0;
info.si_code = SEGV_MAPERR;
@@ -352,6 +394,9 @@ void sun4v_data_access_exception(struct pt_regs *regs, unsigned long addr, unsig
regs->tpc &= 0xffffffff;
regs->tnpc &= 0xffffffff;
}
+ if (is_no_fault_exception(regs))
+ return;
+
info.si_signo = SIGSEGV;
info.si_errno = 0;
info.si_code = SEGV_MAPERR;
@@ -2258,7 +2303,7 @@ static void do_fpe_common(struct pt_regs *regs)
info.si_errno = 0;
info.si_addr = (void __user *)regs->tpc;
info.si_trapno = 0;
- info.si_code = __SI_FAULT;
+ info.si_code = FPE_FIXME;
if ((fsr & 0x1c000) == (1 << 14)) {
if (fsr & 0x10)
info.si_code = FPE_FLTINV;
@@ -2575,6 +2620,9 @@ void mem_address_unaligned(struct pt_regs *regs, unsigned long sfar, unsigned lo
kernel_unaligned_trap(regs, *((unsigned int *)regs->tpc));
goto out;
}
+ if (is_no_fault_exception(regs))
+ return;
+
info.si_signo = SIGBUS;
info.si_errno = 0;
info.si_code = BUS_ADRALN;
@@ -2597,6 +2645,9 @@ void sun4v_do_mna(struct pt_regs *regs, unsigned long addr, unsigned long type_c
kernel_unaligned_trap(regs, *((unsigned int *)regs->tpc));
return;
}
+ if (is_no_fault_exception(regs))
+ return;
+
info.si_signo = SIGBUS;
info.si_errno = 0;
info.si_code = BUS_ADRALN;
@@ -2733,6 +2784,7 @@ void do_getpsr(struct pt_regs *regs)
}
}
+u64 cpu_mondo_counter[NR_CPUS] = {0};
struct trap_per_cpu trap_block[NR_CPUS];
EXPORT_SYMBOL(trap_block);
diff --git a/arch/sparc/kernel/tsb.S b/arch/sparc/kernel/tsb.S
index 07c0df924960..f74115364b1e 100644
--- a/arch/sparc/kernel/tsb.S
+++ b/arch/sparc/kernel/tsb.S
@@ -117,7 +117,7 @@ tsb_miss_page_table_walk_sun4v_fastpath:
/* Valid PTE is now in %g5. */
#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
- sethi %uhi(_PAGE_PMD_HUGE), %g7
+ sethi %uhi(_PAGE_PMD_HUGE | _PAGE_PUD_HUGE), %g7
sllx %g7, 32, %g7
andcc %g5, %g7, %g0
@@ -360,6 +360,7 @@ tsb_flush:
* %o1: TSB base config pointer
* %o2: TSB huge config pointer, or NULL if none
* %o3: Hypervisor TSB descriptor physical address
+ * %o4: Secondary context to load, if non-zero
*
* We have to run this whole thing with interrupts
* disabled so that the current cpu doesn't change
@@ -372,6 +373,17 @@ __tsb_context_switch:
rdpr %pstate, %g1
wrpr %g1, PSTATE_IE, %pstate
+ brz,pn %o4, 1f
+ mov SECONDARY_CONTEXT, %o5
+
+661: stxa %o4, [%o5] ASI_DMMU
+ .section .sun4v_1insn_patch, "ax"
+ .word 661b
+ stxa %o4, [%o5] ASI_MMU
+ .previous
+ flush %g6
+
+1:
TRAP_LOAD_TRAP_BLOCK(%g2, %g3)
stx %o0, [%g2 + TRAP_PER_CPU_PGD_PADDR]
diff --git a/arch/sparc/kernel/vio.c b/arch/sparc/kernel/vio.c
index 075d38980dee..da1ac3f22b24 100644
--- a/arch/sparc/kernel/vio.c
+++ b/arch/sparc/kernel/vio.c
@@ -70,15 +70,26 @@ static int vio_device_probe(struct device *dev)
struct vio_dev *vdev = to_vio_dev(dev);
struct vio_driver *drv = to_vio_driver(dev->driver);
const struct vio_device_id *id;
- int error = -ENODEV;
- if (drv->probe) {
- id = vio_match_device(drv->id_table, vdev);
- if (id)
- error = drv->probe(vdev, id);
+ if (!drv->probe)
+ return -ENODEV;
+
+ id = vio_match_device(drv->id_table, vdev);
+ if (!id)
+ return -ENODEV;
+
+ /* alloc irqs (unless the driver specified not to) */
+ if (!drv->no_irq) {
+ if (vdev->tx_irq == 0 && vdev->tx_ino != ~0UL)
+ vdev->tx_irq = sun4v_build_virq(vdev->cdev_handle,
+ vdev->tx_ino);
+
+ if (vdev->rx_irq == 0 && vdev->rx_ino != ~0UL)
+ vdev->rx_irq = sun4v_build_virq(vdev->cdev_handle,
+ vdev->rx_ino);
}
- return error;
+ return drv->probe(vdev, id);
}
static int vio_device_remove(struct device *dev)
@@ -86,8 +97,15 @@ static int vio_device_remove(struct device *dev)
struct vio_dev *vdev = to_vio_dev(dev);
struct vio_driver *drv = to_vio_driver(dev->driver);
- if (drv->remove)
+ if (drv->remove) {
+ /*
+ * Ideally, we would remove/deallocate tx/rx virqs
+ * here - however, there are currently no support
+ * routines to do so at the moment. TBD
+ */
+
return drv->remove(vdev);
+ }
return 1;
}
@@ -105,6 +123,7 @@ static ssize_t devspec_show(struct device *dev,
return sprintf(buf, "%s\n", str);
}
+static DEVICE_ATTR_RO(devspec);
static ssize_t type_show(struct device *dev,
struct device_attribute *attr, char *buf)
@@ -112,6 +131,7 @@ static ssize_t type_show(struct device *dev,
struct vio_dev *vdev = to_vio_dev(dev);
return sprintf(buf, "%s\n", vdev->type);
}
+static DEVICE_ATTR_RO(type);
static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
char *buf)
@@ -120,17 +140,19 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
return sprintf(buf, "vio:T%sS%s\n", vdev->type, vdev->compat);
}
+static DEVICE_ATTR_RO(modalias);
-static struct device_attribute vio_dev_attrs[] = {
- __ATTR_RO(devspec),
- __ATTR_RO(type),
- __ATTR_RO(modalias),
- __ATTR_NULL
-};
+static struct attribute *vio_dev_attrs[] = {
+ &dev_attr_devspec.attr,
+ &dev_attr_type.attr,
+ &dev_attr_modalias.attr,
+ NULL,
+ };
+ATTRIBUTE_GROUPS(vio_dev);
static struct bus_type vio_bus_type = {
.name = "vio",
- .dev_attrs = vio_dev_attrs,
+ .dev_groups = vio_dev_groups,
.uevent = vio_hotplug,
.match = vio_bus_match,
.probe = vio_device_probe,
@@ -181,11 +203,59 @@ static struct device_node *cdev_node;
static struct vio_dev *root_vdev;
static u64 cdev_cfg_handle;
+static const u64 *vio_cfg_handle(struct mdesc_handle *hp, u64 node)
+{
+ const u64 *cfg_handle = NULL;
+ u64 a;
+
+ mdesc_for_each_arc(a, hp, node, MDESC_ARC_TYPE_BACK) {
+ u64 target;
+
+ target = mdesc_arc_target(hp, a);
+ cfg_handle = mdesc_get_property(hp, target,
+ "cfg-handle", NULL);
+ if (cfg_handle)
+ break;
+ }
+
+ return cfg_handle;
+}
+
+/**
+ * vio_vdev_node() - Find VDEV node in MD
+ * @hp: Handle to the MD
+ * @vdev: Pointer to VDEV
+ *
+ * Find the node in the current MD which matches the given vio_dev. This
+ * must be done dynamically since the node value can change if the MD
+ * is updated.
+ *
+ * NOTE: the MD must be locked, using mdesc_grab(), when calling this routine
+ *
+ * Return: The VDEV node in MDESC
+ */
+u64 vio_vdev_node(struct mdesc_handle *hp, struct vio_dev *vdev)
+{
+ u64 node;
+
+ if (vdev == NULL)
+ return MDESC_NODE_NULL;
+
+ node = mdesc_get_node(hp, (const char *)vdev->node_name,
+ &vdev->md_node_info);
+
+ return node;
+}
+EXPORT_SYMBOL(vio_vdev_node);
+
static void vio_fill_channel_info(struct mdesc_handle *hp, u64 mp,
struct vio_dev *vdev)
{
u64 a;
+ vdev->tx_ino = ~0UL;
+ vdev->rx_ino = ~0UL;
+ vdev->channel_id = ~0UL;
mdesc_for_each_arc(a, hp, mp, MDESC_ARC_TYPE_FWD) {
const u64 *chan_id;
const u64 *irq;
@@ -195,18 +265,18 @@ static void vio_fill_channel_info(struct mdesc_handle *hp, u64 mp,
irq = mdesc_get_property(hp, target, "tx-ino", NULL);
if (irq)
- vdev->tx_irq = sun4v_build_virq(cdev_cfg_handle, *irq);
+ vdev->tx_ino = *irq;
irq = mdesc_get_property(hp, target, "rx-ino", NULL);
- if (irq) {
- vdev->rx_irq = sun4v_build_virq(cdev_cfg_handle, *irq);
+ if (irq)
vdev->rx_ino = *irq;
- }
chan_id = mdesc_get_property(hp, target, "id", NULL);
if (chan_id)
vdev->channel_id = *chan_id;
}
+
+ vdev->cdev_handle = cdev_cfg_handle;
}
int vio_set_intr(unsigned long dev_ino, int state)
@@ -219,14 +289,14 @@ int vio_set_intr(unsigned long dev_ino, int state)
EXPORT_SYMBOL(vio_set_intr);
static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp,
+ const char *node_name,
struct device *parent)
{
- const char *type, *compat, *bus_id_name;
+ const char *type, *compat;
struct device_node *dp;
struct vio_dev *vdev;
int err, tlen, clen;
const u64 *id, *cfg_handle;
- u64 a;
type = mdesc_get_property(hp, mp, "device-type", &tlen);
if (!type) {
@@ -236,7 +306,7 @@ static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp,
tlen = strlen(type) + 1;
}
}
- if (tlen > VIO_MAX_TYPE_LEN) {
+ if (tlen > VIO_MAX_TYPE_LEN || strlen(type) >= VIO_MAX_TYPE_LEN) {
printk(KERN_ERR "VIO: Type string [%s] is too long.\n",
type);
return NULL;
@@ -244,31 +314,7 @@ static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp,
id = mdesc_get_property(hp, mp, "id", NULL);
- cfg_handle = NULL;
- mdesc_for_each_arc(a, hp, mp, MDESC_ARC_TYPE_BACK) {
- u64 target;
-
- target = mdesc_arc_target(hp, a);
- cfg_handle = mdesc_get_property(hp, target,
- "cfg-handle", NULL);
- if (cfg_handle)
- break;
- }
-
- bus_id_name = type;
- if (!strcmp(type, "domain-services-port"))
- bus_id_name = "ds";
-
- /*
- * 20 char is the old driver-core name size limit, which is no more.
- * This check can probably be removed after review and possible
- * adaption of the vio users name length handling.
- */
- if (strlen(bus_id_name) >= 20 - 4) {
- printk(KERN_ERR "VIO: bus_id_name [%s] is too long.\n",
- bus_id_name);
- return NULL;
- }
+ cfg_handle = vio_cfg_handle(hp, mp);
compat = mdesc_get_property(hp, mp, "device-type", &clen);
if (!compat) {
@@ -293,25 +339,23 @@ static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp,
memset(vdev->compat, 0, sizeof(vdev->compat));
vdev->compat_len = clen;
- vdev->channel_id = ~0UL;
- vdev->tx_irq = ~0;
- vdev->rx_irq = ~0;
+ vdev->port_id = ~0UL;
+ vdev->tx_irq = 0;
+ vdev->rx_irq = 0;
vio_fill_channel_info(hp, mp, vdev);
if (!id) {
- dev_set_name(&vdev->dev, "%s", bus_id_name);
+ dev_set_name(&vdev->dev, "%s", type);
vdev->dev_no = ~(u64)0;
- vdev->id = ~(u64)0;
} else if (!cfg_handle) {
- dev_set_name(&vdev->dev, "%s-%llu", bus_id_name, *id);
+ dev_set_name(&vdev->dev, "%s-%llu", type, *id);
vdev->dev_no = *id;
- vdev->id = ~(u64)0;
} else {
- dev_set_name(&vdev->dev, "%s-%llu-%llu", bus_id_name,
+ dev_set_name(&vdev->dev, "%s-%llu-%llu", type,
*cfg_handle, *id);
vdev->dev_no = *cfg_handle;
- vdev->id = *id;
+ vdev->port_id = *id;
}
vdev->dev.parent = parent;
@@ -333,7 +377,26 @@ static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp,
}
vdev->dp = dp;
- printk(KERN_INFO "VIO: Adding device %s\n", dev_name(&vdev->dev));
+ /*
+ * node_name is NULL for the parent/channel-devices node and
+ * the parent doesn't require the MD node info.
+ */
+ if (node_name != NULL) {
+ (void) snprintf(vdev->node_name, VIO_MAX_NAME_LEN, "%s",
+ node_name);
+
+ err = mdesc_get_node_info(hp, mp, node_name,
+ &vdev->md_node_info);
+ if (err) {
+ pr_err("VIO: Could not get MD node info %s, err=%d\n",
+ dev_name(&vdev->dev), err);
+ kfree(vdev);
+ return NULL;
+ }
+ }
+
+ pr_info("VIO: Adding device %s (tx_ino = %llx, rx_ino = %llx)\n",
+ dev_name(&vdev->dev), vdev->tx_ino, vdev->rx_ino);
err = device_register(&vdev->dev);
if (err) {
@@ -349,73 +412,42 @@ static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp,
return vdev;
}
-static void vio_add(struct mdesc_handle *hp, u64 node)
+static void vio_add(struct mdesc_handle *hp, u64 node,
+ const char *node_name)
{
- (void) vio_create_one(hp, node, &root_vdev->dev);
+ (void) vio_create_one(hp, node, node_name, &root_vdev->dev);
}
-struct vio_md_node_query {
- const char *type;
- u64 dev_no;
- u64 id;
+struct vio_remove_node_data {
+ struct mdesc_handle *hp;
+ u64 node;
};
static int vio_md_node_match(struct device *dev, void *arg)
{
- struct vio_md_node_query *query = (struct vio_md_node_query *) arg;
struct vio_dev *vdev = to_vio_dev(dev);
+ struct vio_remove_node_data *node_data;
+ u64 node;
- if (vdev->dev_no != query->dev_no)
- return 0;
- if (vdev->id != query->id)
- return 0;
- if (strcmp(vdev->type, query->type))
- return 0;
+ node_data = (struct vio_remove_node_data *)arg;
- return 1;
+ node = vio_vdev_node(node_data->hp, vdev);
+
+ if (node == node_data->node)
+ return 1;
+ else
+ return 0;
}
-static void vio_remove(struct mdesc_handle *hp, u64 node)
+static void vio_remove(struct mdesc_handle *hp, u64 node, const char *node_name)
{
- const char *type;
- const u64 *id, *cfg_handle;
- u64 a;
- struct vio_md_node_query query;
+ struct vio_remove_node_data node_data;
struct device *dev;
- type = mdesc_get_property(hp, node, "device-type", NULL);
- if (!type) {
- type = mdesc_get_property(hp, node, "name", NULL);
- if (!type)
- type = mdesc_node_name(hp, node);
- }
-
- query.type = type;
-
- id = mdesc_get_property(hp, node, "id", NULL);
- cfg_handle = NULL;
- mdesc_for_each_arc(a, hp, node, MDESC_ARC_TYPE_BACK) {
- u64 target;
-
- target = mdesc_arc_target(hp, a);
- cfg_handle = mdesc_get_property(hp, target,
- "cfg-handle", NULL);
- if (cfg_handle)
- break;
- }
-
- if (!id) {
- query.dev_no = ~(u64)0;
- query.id = ~(u64)0;
- } else if (!cfg_handle) {
- query.dev_no = *id;
- query.id = ~(u64)0;
- } else {
- query.dev_no = *cfg_handle;
- query.id = *id;
- }
+ node_data.hp = hp;
+ node_data.node = node;
- dev = device_find_child(&root_vdev->dev, &query,
+ dev = device_find_child(&root_vdev->dev, (void *)&node_data,
vio_md_node_match);
if (dev) {
printk(KERN_INFO "VIO: Removing device %s\n", dev_name(dev));
@@ -423,15 +455,7 @@ static void vio_remove(struct mdesc_handle *hp, u64 node)
device_unregister(dev);
put_device(dev);
} else {
- if (!id)
- printk(KERN_ERR "VIO: Removed unknown %s node.\n",
- type);
- else if (!cfg_handle)
- printk(KERN_ERR "VIO: Removed unknown %s node %llu.\n",
- type, *id);
- else
- printk(KERN_ERR "VIO: Removed unknown %s node %llu-%llu.\n",
- type, *cfg_handle, *id);
+ pr_err("VIO: %s node not found in MDESC\n", node_name);
}
}
@@ -446,7 +470,8 @@ static struct mdesc_notifier_client vio_device_notifier = {
* under "openboot" that we should not mess with as aparently that is
* reserved exclusively for OBP use.
*/
-static void vio_add_ds(struct mdesc_handle *hp, u64 node)
+static void vio_add_ds(struct mdesc_handle *hp, u64 node,
+ const char *node_name)
{
int found;
u64 a;
@@ -463,7 +488,7 @@ static void vio_add_ds(struct mdesc_handle *hp, u64 node)
}
if (found)
- (void) vio_create_one(hp, node, &root_vdev->dev);
+ (void) vio_create_one(hp, node, node_name, &root_vdev->dev);
}
static struct mdesc_notifier_client vio_ds_notifier = {
@@ -530,7 +555,7 @@ static int __init vio_init(void)
cdev_cfg_handle = *cfg_handle;
- root_vdev = vio_create_one(hp, root, NULL);
+ root_vdev = vio_create_one(hp, root, NULL, NULL);
err = -ENODEV;
if (!root_vdev) {
printk(KERN_ERR "VIO: Could not create root device.\n");
diff --git a/arch/sparc/kernel/viohs.c b/arch/sparc/kernel/viohs.c
index b30b30ab3ddd..dcd278f29573 100644
--- a/arch/sparc/kernel/viohs.c
+++ b/arch/sparc/kernel/viohs.c
@@ -223,6 +223,9 @@ static int send_rdx(struct vio_driver_state *vio)
static int send_attr(struct vio_driver_state *vio)
{
+ if (!vio->ops)
+ return -EINVAL;
+
return vio->ops->send_attr(vio);
}
@@ -283,6 +286,7 @@ static int process_ver_info(struct vio_driver_state *vio,
ver.minor = vap->minor;
pkt->minor = ver.minor;
pkt->tag.stype = VIO_SUBTYPE_ACK;
+ pkt->dev_class = vio->dev_class;
viodbg(HS, "SEND VERSION ACK maj[%u] min[%u]\n",
pkt->major, pkt->minor);
err = send_ctrl(vio, &pkt->tag, sizeof(*pkt));
@@ -374,6 +378,9 @@ static int process_attr(struct vio_driver_state *vio, void *pkt)
if (!(vio->hs_state & VIO_HS_GOTVERS))
return handshake_failure(vio);
+ if (!vio->ops)
+ return 0;
+
err = vio->ops->handle_attr(vio, pkt);
if (err < 0) {
return handshake_failure(vio);
@@ -388,6 +395,7 @@ static int process_attr(struct vio_driver_state *vio, void *pkt)
vio->hs_state |= VIO_HS_SENT_DREG;
}
}
+
return 0;
}
@@ -647,10 +655,13 @@ int vio_control_pkt_engine(struct vio_driver_state *vio, void *pkt)
err = process_unknown(vio, pkt);
break;
}
+
if (!err &&
vio->hs_state != prev_state &&
- (vio->hs_state & VIO_HS_COMPLETE))
- vio->ops->handshake_complete(vio);
+ (vio->hs_state & VIO_HS_COMPLETE)) {
+ if (vio->ops)
+ vio->ops->handshake_complete(vio);
+ }
return err;
}
@@ -765,7 +776,11 @@ void vio_port_up(struct vio_driver_state *vio)
}
if (!err) {
- err = ldc_connect(vio->lp);
+ if (ldc_mode(vio->lp) == LDC_MODE_RAW)
+ ldc_set_state(vio->lp, LDC_STATE_CONNECTED);
+ else
+ err = ldc_connect(vio->lp);
+
if (err)
printk(KERN_WARNING "%s: Port %lu connect failed, "
"err=%d\n",
@@ -799,16 +814,21 @@ int vio_driver_init(struct vio_driver_state *vio, struct vio_dev *vdev,
case VDEV_NETWORK_SWITCH:
case VDEV_DISK:
case VDEV_DISK_SERVER:
+ case VDEV_CONSOLE_CON:
break;
default:
return -EINVAL;
}
- if (!ops->send_attr ||
- !ops->handle_attr ||
- !ops->handshake_complete)
- return -EINVAL;
+ if (dev_class == VDEV_NETWORK ||
+ dev_class == VDEV_NETWORK_SWITCH ||
+ dev_class == VDEV_DISK ||
+ dev_class == VDEV_DISK_SERVER) {
+ if (!ops || !ops->send_attr || !ops->handle_attr ||
+ !ops->handshake_complete)
+ return -EINVAL;
+ }
if (!ver_table || ver_table_size < 0)
return -EINVAL;
diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S
index 572db686f845..d78847d56a4b 100644
--- a/arch/sparc/kernel/vmlinux.lds.S
+++ b/arch/sparc/kernel/vmlinux.lds.S
@@ -149,6 +149,21 @@ SECTIONS
*(.sun_m7_2insn_patch)
__sun_m7_2insn_patch_end = .;
}
+ .get_tick_patch : {
+ __get_tick_patch = .;
+ *(.get_tick_patch)
+ __get_tick_patch_end = .;
+ }
+ .pud_huge_patch : {
+ __pud_huge_patch = .;
+ *(.pud_huge_patch)
+ __pud_huge_patch_end = .;
+ }
+ .fast_win_ctrl_1insn_patch : {
+ __fast_win_ctrl_1insn_patch = .;
+ *(.fast_win_ctrl_1insn_patch)
+ __fast_win_ctrl_1insn_patch_end = .;
+ }
PERCPU_SECTION(SMP_CACHE_BYTES)
#ifdef CONFIG_JUMP_LABEL
diff --git a/arch/sparc/lib/M7copy_from_user.S b/arch/sparc/lib/M7copy_from_user.S
new file mode 100644
index 000000000000..66464b3e3649
--- /dev/null
+++ b/arch/sparc/lib/M7copy_from_user.S
@@ -0,0 +1,40 @@
+/*
+ * M7copy_from_user.S: SPARC M7 optimized copy from userspace.
+ *
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ */
+
+
+#define EX_LD(x, y) \
+98: x; \
+ .section __ex_table,"a"; \
+ .align 4; \
+ .word 98b, y; \
+ .text; \
+ .align 4;
+
+#define EX_LD_FP(x, y) \
+98: x; \
+ .section __ex_table,"a"; \
+ .align 4; \
+ .word 98b, y##_fp; \
+ .text; \
+ .align 4;
+
+#ifndef ASI_AIUS
+#define ASI_AIUS 0x11
+#endif
+
+#define FUNC_NAME M7copy_from_user
+#define LOAD(type,addr,dest) type##a [addr] %asi, dest
+#define EX_RETVAL(x) 0
+
+#ifdef __KERNEL__
+#define PREAMBLE \
+ rd %asi, %g1; \
+ cmp %g1, ASI_AIUS; \
+ bne,pn %icc, raw_copy_in_user; \
+ nop
+#endif
+
+#include "M7memcpy.S"
diff --git a/arch/sparc/lib/M7copy_to_user.S b/arch/sparc/lib/M7copy_to_user.S
new file mode 100644
index 000000000000..a60ac467f808
--- /dev/null
+++ b/arch/sparc/lib/M7copy_to_user.S
@@ -0,0 +1,51 @@
+/*
+ * M7copy_to_user.S: SPARC M7 optimized copy to userspace.
+ *
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ */
+
+
+#define EX_ST(x, y) \
+98: x; \
+ .section __ex_table,"a"; \
+ .align 4; \
+ .word 98b, y; \
+ .text; \
+ .align 4;
+
+#define EX_ST_FP(x, y) \
+98: x; \
+ .section __ex_table,"a"; \
+ .align 4; \
+ .word 98b, y##_fp; \
+ .text; \
+ .align 4;
+
+
+#ifndef ASI_AIUS
+#define ASI_AIUS 0x11
+#endif
+
+#ifndef ASI_BLK_INIT_QUAD_LDD_AIUS
+#define ASI_BLK_INIT_QUAD_LDD_AIUS 0x23
+#endif
+
+#define FUNC_NAME M7copy_to_user
+#define STORE(type,src,addr) type##a src, [addr] %asi
+#define STORE_ASI ASI_BLK_INIT_QUAD_LDD_AIUS
+#define STORE_MRU_ASI ASI_ST_BLKINIT_MRU_S
+#define EX_RETVAL(x) 0
+
+#ifdef __KERNEL__
+ /* Writing to %asi is _expensive_ so we hardcode it.
+ * Reading %asi to check for KERNEL_DS is comparatively
+ * cheap.
+ */
+#define PREAMBLE \
+ rd %asi, %g1; \
+ cmp %g1, ASI_AIUS; \
+ bne,pn %icc, raw_copy_in_user; \
+ nop
+#endif
+
+#include "M7memcpy.S"
diff --git a/arch/sparc/lib/M7memcpy.S b/arch/sparc/lib/M7memcpy.S
new file mode 100644
index 000000000000..cbd42ea7c3f7
--- /dev/null
+++ b/arch/sparc/lib/M7memcpy.S
@@ -0,0 +1,923 @@
+/*
+ * M7memcpy: Optimized SPARC M7 memcpy
+ *
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ */
+
+ .file "M7memcpy.S"
+
+/*
+ * memcpy(s1, s2, len)
+ *
+ * Copy s2 to s1, always copy n bytes.
+ * Note: this C code does not work for overlapped copies.
+ *
+ * Fast assembler language version of the following C-program for memcpy
+ * which represents the `standard' for the C-library.
+ *
+ * void *
+ * memcpy(void *s, const void *s0, size_t n)
+ * {
+ * if (n != 0) {
+ * char *s1 = s;
+ * const char *s2 = s0;
+ * do {
+ * *s1++ = *s2++;
+ * } while (--n != 0);
+ * }
+ * return (s);
+ * }
+ *
+ *
+ * SPARC T7/M7 Flow :
+ *
+ * if (count < SMALL_MAX) {
+ * if count < SHORTCOPY (SHORTCOPY=3)
+ * copy bytes; exit with dst addr
+ * if src & dst aligned on word boundary but not long word boundary,
+ * copy with ldw/stw; branch to finish_up
+ * if src & dst aligned on long word boundary
+ * copy with ldx/stx; branch to finish_up
+ * if src & dst not aligned and length <= SHORTCHECK (SHORTCHECK=14)
+ * copy bytes; exit with dst addr
+ * move enough bytes to get src to word boundary
+ * if dst now on word boundary
+ * move_words:
+ * copy words; branch to finish_up
+ * if dst now on half word boundary
+ * load words, shift half words, store words; branch to finish_up
+ * if dst on byte 1
+ * load words, shift 3 bytes, store words; branch to finish_up
+ * if dst on byte 3
+ * load words, shift 1 byte, store words; branch to finish_up
+ * finish_up:
+ * copy bytes; exit with dst addr
+ * } else { More than SMALL_MAX bytes
+ * move bytes until dst is on long word boundary
+ * if( src is on long word boundary ) {
+ * if (count < MED_MAX) {
+ * finish_long: src/dst aligned on 8 bytes
+ * copy with ldx/stx in 8-way unrolled loop;
+ * copy final 0-63 bytes; exit with dst addr
+ * } else { src/dst aligned; count > MED_MAX
+ * align dst on 64 byte boundary; for main data movement:
+ * prefetch src data to L2 cache; let HW prefetch move data to L1 cache
+ * Use BIS (block initializing store) to avoid copying store cache
+ * lines from memory. But pre-store first element of each cache line
+ * ST_CHUNK lines in advance of the rest of that cache line. That
+ * gives time for replacement cache lines to be written back without
+ * excess STQ and Miss Buffer filling. Repeat until near the end,
+ * then finish up storing before going to finish_long.
+ * }
+ * } else { src/dst not aligned on 8 bytes
+ * if src is word aligned and count < MED_WMAX
+ * move words in 8-way unrolled loop
+ * move final 0-31 bytes; exit with dst addr
+ * if count < MED_UMAX
+ * use alignaddr/faligndata combined with ldd/std in 8-way
+ * unrolled loop to move data.
+ * go to unalign_done
+ * else
+ * setup alignaddr for faligndata instructions
+ * align dst on 64 byte boundary; prefetch src data to L1 cache
+ * loadx8, falign, block-store, prefetch loop
+ * (only use block-init-store when src/dst on 8 byte boundaries.)
+ * unalign_done:
+ * move remaining bytes for unaligned cases. exit with dst addr.
+ * }
+ *
+ */
+
+#include <asm/visasm.h>
+#include <asm/asi.h>
+
+#if !defined(EX_LD) && !defined(EX_ST)
+#define NON_USER_COPY
+#endif
+
+#ifndef EX_LD
+#define EX_LD(x,y) x
+#endif
+#ifndef EX_LD_FP
+#define EX_LD_FP(x,y) x
+#endif
+
+#ifndef EX_ST
+#define EX_ST(x,y) x
+#endif
+#ifndef EX_ST_FP
+#define EX_ST_FP(x,y) x
+#endif
+
+#ifndef EX_RETVAL
+#define EX_RETVAL(x) x
+#endif
+
+#ifndef LOAD
+#define LOAD(type,addr,dest) type [addr], dest
+#endif
+
+#ifndef STORE
+#define STORE(type,src,addr) type src, [addr]
+#endif
+
+/*
+ * ASI_BLK_INIT_QUAD_LDD_P/ASI_BLK_INIT_QUAD_LDD_S marks the cache
+ * line as "least recently used" which means if many threads are
+ * active, it has a high probability of being pushed out of the cache
+ * between the first initializing store and the final stores.
+ * Thus, we use ASI_ST_BLKINIT_MRU_P/ASI_ST_BLKINIT_MRU_S which
+ * marks the cache line as "most recently used" for all
+ * but the last cache line
+ */
+#ifndef STORE_ASI
+#ifndef SIMULATE_NIAGARA_ON_NON_NIAGARA
+#define STORE_ASI ASI_BLK_INIT_QUAD_LDD_P
+#else
+#define STORE_ASI 0x80 /* ASI_P */
+#endif
+#endif
+
+#ifndef STORE_MRU_ASI
+#ifndef SIMULATE_NIAGARA_ON_NON_NIAGARA
+#define STORE_MRU_ASI ASI_ST_BLKINIT_MRU_P
+#else
+#define STORE_MRU_ASI 0x80 /* ASI_P */
+#endif
+#endif
+
+#ifndef STORE_INIT
+#define STORE_INIT(src,addr) stxa src, [addr] STORE_ASI
+#endif
+
+#ifndef STORE_INIT_MRU
+#define STORE_INIT_MRU(src,addr) stxa src, [addr] STORE_MRU_ASI
+#endif
+
+#ifndef FUNC_NAME
+#define FUNC_NAME M7memcpy
+#endif
+
+#ifndef PREAMBLE
+#define PREAMBLE
+#endif
+
+#define BLOCK_SIZE 64
+#define SHORTCOPY 3
+#define SHORTCHECK 14
+#define SHORT_LONG 64 /* max copy for short longword-aligned case */
+ /* must be at least 64 */
+#define SMALL_MAX 128
+#define MED_UMAX 1024 /* max copy for medium un-aligned case */
+#define MED_WMAX 1024 /* max copy for medium word-aligned case */
+#define MED_MAX 1024 /* max copy for medium longword-aligned case */
+#define ST_CHUNK 24 /* ST_CHUNK - block of values for BIS Store */
+#define ALIGN_PRE 24 /* distance for aligned prefetch loop */
+
+ .register %g2,#scratch
+
+ .section ".text"
+ .global FUNC_NAME
+ .type FUNC_NAME, #function
+ .align 16
+FUNC_NAME:
+ srlx %o2, 31, %g2
+ cmp %g2, 0
+ tne %xcc, 5
+ PREAMBLE
+ mov %o0, %g1 ! save %o0
+ brz,pn %o2, .Lsmallx
+ cmp %o2, 3
+ ble,pn %icc, .Ltiny_cp
+ cmp %o2, 19
+ ble,pn %icc, .Lsmall_cp
+ or %o0, %o1, %g2
+ cmp %o2, SMALL_MAX
+ bl,pn %icc, .Lmedium_cp
+ nop
+
+.Lmedium:
+ neg %o0, %o5
+ andcc %o5, 7, %o5 ! bytes till DST 8 byte aligned
+ brz,pt %o5, .Ldst_aligned_on_8
+
+ ! %o5 has the bytes to be written in partial store.
+ sub %o2, %o5, %o2
+ sub %o1, %o0, %o1 ! %o1 gets the difference
+7: ! dst aligning loop
+ add %o1, %o0, %o4
+ EX_LD(LOAD(ldub, %o4, %o4), memcpy_retl_o2_plus_o5) ! load one byte
+ subcc %o5, 1, %o5
+ EX_ST(STORE(stb, %o4, %o0), memcpy_retl_o2_plus_o5_plus_1)
+ bgu,pt %xcc, 7b
+ add %o0, 1, %o0 ! advance dst
+ add %o1, %o0, %o1 ! restore %o1
+.Ldst_aligned_on_8:
+ andcc %o1, 7, %o5
+ brnz,pt %o5, .Lsrc_dst_unaligned_on_8
+ nop
+
+.Lsrc_dst_aligned_on_8:
+ ! check if we are copying MED_MAX or more bytes
+ set MED_MAX, %o3
+ cmp %o2, %o3 ! limit to store buffer size
+ bgu,pn %xcc, .Llarge_align8_copy
+ nop
+
+/*
+ * Special case for handling when src and dest are both long word aligned
+ * and total data to move is less than MED_MAX bytes
+ */
+.Lmedlong:
+ subcc %o2, 63, %o2 ! adjust length to allow cc test
+ ble,pn %xcc, .Lmedl63 ! skip big loop if less than 64 bytes
+ nop
+.Lmedl64:
+ EX_LD(LOAD(ldx, %o1, %o4), memcpy_retl_o2_plus_63) ! load
+ subcc %o2, 64, %o2 ! decrement length count
+ EX_ST(STORE(stx, %o4, %o0), memcpy_retl_o2_plus_63_64) ! and store
+ EX_LD(LOAD(ldx, %o1+8, %o3), memcpy_retl_o2_plus_63_56) ! a block of 64
+ EX_ST(STORE(stx, %o3, %o0+8), memcpy_retl_o2_plus_63_56)
+ EX_LD(LOAD(ldx, %o1+16, %o4), memcpy_retl_o2_plus_63_48)
+ EX_ST(STORE(stx, %o4, %o0+16), memcpy_retl_o2_plus_63_48)
+ EX_LD(LOAD(ldx, %o1+24, %o3), memcpy_retl_o2_plus_63_40)
+ EX_ST(STORE(stx, %o3, %o0+24), memcpy_retl_o2_plus_63_40)
+ EX_LD(LOAD(ldx, %o1+32, %o4), memcpy_retl_o2_plus_63_32)! load and store
+ EX_ST(STORE(stx, %o4, %o0+32), memcpy_retl_o2_plus_63_32)
+ EX_LD(LOAD(ldx, %o1+40, %o3), memcpy_retl_o2_plus_63_24)! a block of 64
+ add %o1, 64, %o1 ! increase src ptr by 64
+ EX_ST(STORE(stx, %o3, %o0+40), memcpy_retl_o2_plus_63_24)
+ EX_LD(LOAD(ldx, %o1-16, %o4), memcpy_retl_o2_plus_63_16)
+ add %o0, 64, %o0 ! increase dst ptr by 64
+ EX_ST(STORE(stx, %o4, %o0-16), memcpy_retl_o2_plus_63_16)
+ EX_LD(LOAD(ldx, %o1-8, %o3), memcpy_retl_o2_plus_63_8)
+ bgu,pt %xcc, .Lmedl64 ! repeat if at least 64 bytes left
+ EX_ST(STORE(stx, %o3, %o0-8), memcpy_retl_o2_plus_63_8)
+.Lmedl63:
+ addcc %o2, 32, %o2 ! adjust remaining count
+ ble,pt %xcc, .Lmedl31 ! to skip if 31 or fewer bytes left
+ nop
+ EX_LD(LOAD(ldx, %o1, %o4), memcpy_retl_o2_plus_31) ! load
+ sub %o2, 32, %o2 ! decrement length count
+ EX_ST(STORE(stx, %o4, %o0), memcpy_retl_o2_plus_31_32) ! and store
+ EX_LD(LOAD(ldx, %o1+8, %o3), memcpy_retl_o2_plus_31_24) ! a block of 32
+ add %o1, 32, %o1 ! increase src ptr by 32
+ EX_ST(STORE(stx, %o3, %o0+8), memcpy_retl_o2_plus_31_24)
+ EX_LD(LOAD(ldx, %o1-16, %o4), memcpy_retl_o2_plus_31_16)
+ add %o0, 32, %o0 ! increase dst ptr by 32
+ EX_ST(STORE(stx, %o4, %o0-16), memcpy_retl_o2_plus_31_16)
+ EX_LD(LOAD(ldx, %o1-8, %o3), memcpy_retl_o2_plus_31_8)
+ EX_ST(STORE(stx, %o3, %o0-8), memcpy_retl_o2_plus_31_8)
+.Lmedl31:
+ addcc %o2, 16, %o2 ! adjust remaining count
+ ble,pt %xcc, .Lmedl15 ! skip if 15 or fewer bytes left
+ nop !
+ EX_LD(LOAD(ldx, %o1, %o4), memcpy_retl_o2_plus_15)
+ add %o1, 16, %o1 ! increase src ptr by 16
+ EX_ST(STORE(stx, %o4, %o0), memcpy_retl_o2_plus_15)
+ sub %o2, 16, %o2 ! decrease count by 16
+ EX_LD(LOAD(ldx, %o1-8, %o3), memcpy_retl_o2_plus_15_8)
+ add %o0, 16, %o0 ! increase dst ptr by 16
+ EX_ST(STORE(stx, %o3, %o0-8), memcpy_retl_o2_plus_15_8)
+.Lmedl15:
+ addcc %o2, 15, %o2 ! restore count
+ bz,pt %xcc, .Lsmallx ! exit if finished
+ cmp %o2, 8
+ blt,pt %xcc, .Lmedw7 ! skip if 7 or fewer bytes left
+ tst %o2
+ EX_LD(LOAD(ldx, %o1, %o4), memcpy_retl_o2) ! load 8 bytes
+ add %o1, 8, %o1 ! increase src ptr by 8
+ add %o0, 8, %o0 ! increase dst ptr by 8
+ subcc %o2, 8, %o2 ! decrease count by 8
+ bnz,pn %xcc, .Lmedw7
+ EX_ST(STORE(stx, %o4, %o0-8), memcpy_retl_o2_plus_8) ! and store 8
+ retl
+ mov EX_RETVAL(%g1), %o0 ! restore %o0
+
+ .align 16
+.Lsrc_dst_unaligned_on_8:
+ ! DST is 8-byte aligned, src is not
+2:
+ andcc %o1, 0x3, %o5 ! test word alignment
+ bnz,pt %xcc, .Lunalignsetup ! branch to skip if not word aligned
+ nop
+
+/*
+ * Handle all cases where src and dest are aligned on word
+ * boundaries. Use unrolled loops for better performance.
+ * This option wins over standard large data move when
+ * source and destination is in cache for.Lmedium
+ * to short data moves.
+ */
+ set MED_WMAX, %o3
+ cmp %o2, %o3 ! limit to store buffer size
+ bge,pt %xcc, .Lunalignrejoin ! otherwise rejoin main loop
+ nop
+
+ subcc %o2, 31, %o2 ! adjust length to allow cc test
+ ! for end of loop
+ ble,pt %xcc, .Lmedw31 ! skip big loop if less than 16
+.Lmedw32:
+ EX_LD(LOAD(ld, %o1, %o4), memcpy_retl_o2_plus_31)! move a block of 32
+ sllx %o4, 32, %o5
+ EX_LD(LOAD(ld, %o1+4, %o4), memcpy_retl_o2_plus_31)
+ or %o4, %o5, %o5
+ EX_ST(STORE(stx, %o5, %o0), memcpy_retl_o2_plus_31)
+ subcc %o2, 32, %o2 ! decrement length count
+ EX_LD(LOAD(ld, %o1+8, %o4), memcpy_retl_o2_plus_31_24)
+ sllx %o4, 32, %o5
+ EX_LD(LOAD(ld, %o1+12, %o4), memcpy_retl_o2_plus_31_24)
+ or %o4, %o5, %o5
+ EX_ST(STORE(stx, %o5, %o0+8), memcpy_retl_o2_plus_31_24)
+ add %o1, 32, %o1 ! increase src ptr by 32
+ EX_LD(LOAD(ld, %o1-16, %o4), memcpy_retl_o2_plus_31_16)
+ sllx %o4, 32, %o5
+ EX_LD(LOAD(ld, %o1-12, %o4), memcpy_retl_o2_plus_31_16)
+ or %o4, %o5, %o5
+ EX_ST(STORE(stx, %o5, %o0+16), memcpy_retl_o2_plus_31_16)
+ add %o0, 32, %o0 ! increase dst ptr by 32
+ EX_LD(LOAD(ld, %o1-8, %o4), memcpy_retl_o2_plus_31_8)
+ sllx %o4, 32, %o5
+ EX_LD(LOAD(ld, %o1-4, %o4), memcpy_retl_o2_plus_31_8)
+ or %o4, %o5, %o5
+ bgu,pt %xcc, .Lmedw32 ! repeat if at least 32 bytes left
+ EX_ST(STORE(stx, %o5, %o0-8), memcpy_retl_o2_plus_31_8)
+.Lmedw31:
+ addcc %o2, 31, %o2 ! restore count
+
+ bz,pt %xcc, .Lsmallx ! exit if finished
+ nop
+ cmp %o2, 16
+ blt,pt %xcc, .Lmedw15
+ nop
+ EX_LD(LOAD(ld, %o1, %o4), memcpy_retl_o2)! move a block of 16 bytes
+ sllx %o4, 32, %o5
+ subcc %o2, 16, %o2 ! decrement length count
+ EX_LD(LOAD(ld, %o1+4, %o4), memcpy_retl_o2_plus_16)
+ or %o4, %o5, %o5
+ EX_ST(STORE(stx, %o5, %o0), memcpy_retl_o2_plus_16)
+ add %o1, 16, %o1 ! increase src ptr by 16
+ EX_LD(LOAD(ld, %o1-8, %o4), memcpy_retl_o2_plus_8)
+ add %o0, 16, %o0 ! increase dst ptr by 16
+ sllx %o4, 32, %o5
+ EX_LD(LOAD(ld, %o1-4, %o4), memcpy_retl_o2_plus_8)
+ or %o4, %o5, %o5
+ EX_ST(STORE(stx, %o5, %o0-8), memcpy_retl_o2_plus_8)
+.Lmedw15:
+ bz,pt %xcc, .Lsmallx ! exit if finished
+ cmp %o2, 8
+ blt,pn %xcc, .Lmedw7 ! skip if 7 or fewer bytes left
+ tst %o2
+ EX_LD(LOAD(ld, %o1, %o4), memcpy_retl_o2) ! load 4 bytes
+ subcc %o2, 8, %o2 ! decrease count by 8
+ EX_ST(STORE(stw, %o4, %o0), memcpy_retl_o2_plus_8)! and store 4 bytes
+ add %o1, 8, %o1 ! increase src ptr by 8
+ EX_LD(LOAD(ld, %o1-4, %o3), memcpy_retl_o2_plus_4) ! load 4 bytes
+ add %o0, 8, %o0 ! increase dst ptr by 8
+ EX_ST(STORE(stw, %o3, %o0-4), memcpy_retl_o2_plus_4)! and store 4 bytes
+ bz,pt %xcc, .Lsmallx ! exit if finished
+.Lmedw7: ! count is ge 1, less than 8
+ cmp %o2, 4 ! check for 4 bytes left
+ blt,pn %xcc, .Lsmallleft3 ! skip if 3 or fewer bytes left
+ nop !
+ EX_LD(LOAD(ld, %o1, %o4), memcpy_retl_o2) ! load 4 bytes
+ add %o1, 4, %o1 ! increase src ptr by 4
+ add %o0, 4, %o0 ! increase dst ptr by 4
+ subcc %o2, 4, %o2 ! decrease count by 4
+ bnz .Lsmallleft3
+ EX_ST(STORE(stw, %o4, %o0-4), memcpy_retl_o2_plus_4)! and store 4 bytes
+ retl
+ mov EX_RETVAL(%g1), %o0
+
+ .align 16
+.Llarge_align8_copy: ! Src and dst share 8 byte alignment
+ ! align dst to 64 byte boundary
+ andcc %o0, 0x3f, %o3 ! %o3 == 0 means dst is 64 byte aligned
+ brz,pn %o3, .Laligned_to_64
+ andcc %o0, 8, %o3 ! odd long words to move?
+ brz,pt %o3, .Laligned_to_16
+ nop
+ EX_LD(LOAD(ldx, %o1, %o4), memcpy_retl_o2)
+ sub %o2, 8, %o2
+ add %o1, 8, %o1 ! increment src ptr
+ add %o0, 8, %o0 ! increment dst ptr
+ EX_ST(STORE(stx, %o4, %o0-8), memcpy_retl_o2_plus_8)
+.Laligned_to_16:
+ andcc %o0, 16, %o3 ! pair of long words to move?
+ brz,pt %o3, .Laligned_to_32
+ nop
+ EX_LD(LOAD(ldx, %o1, %o4), memcpy_retl_o2)
+ sub %o2, 16, %o2
+ EX_ST(STORE(stx, %o4, %o0), memcpy_retl_o2_plus_16)
+ add %o1, 16, %o1 ! increment src ptr
+ EX_LD(LOAD(ldx, %o1-8, %o4), memcpy_retl_o2_plus_8)
+ add %o0, 16, %o0 ! increment dst ptr
+ EX_ST(STORE(stx, %o4, %o0-8), memcpy_retl_o2_plus_8)
+.Laligned_to_32:
+ andcc %o0, 32, %o3 ! four long words to move?
+ brz,pt %o3, .Laligned_to_64
+ nop
+ EX_LD(LOAD(ldx, %o1, %o4), memcpy_retl_o2)
+ sub %o2, 32, %o2
+ EX_ST(STORE(stx, %o4, %o0), memcpy_retl_o2_plus_32)
+ EX_LD(LOAD(ldx, %o1+8, %o4), memcpy_retl_o2_plus_24)
+ EX_ST(STORE(stx, %o4, %o0+8), memcpy_retl_o2_plus_24)
+ EX_LD(LOAD(ldx, %o1+16, %o4), memcpy_retl_o2_plus_16)
+ EX_ST(STORE(stx, %o4, %o0+16), memcpy_retl_o2_plus_16)
+ add %o1, 32, %o1 ! increment src ptr
+ EX_LD(LOAD(ldx, %o1-8, %o4), memcpy_retl_o2_plus_8)
+ add %o0, 32, %o0 ! increment dst ptr
+ EX_ST(STORE(stx, %o4, %o0-8), memcpy_retl_o2_plus_8)
+.Laligned_to_64:
+!
+! Using block init store (BIS) instructions to avoid fetching cache
+! lines from memory. Use ST_CHUNK stores to first element of each cache
+! line (similar to prefetching) to avoid overfilling STQ or miss buffers.
+! Gives existing cache lines time to be moved out of L1/L2/L3 cache.
+! Initial stores using MRU version of BIS to keep cache line in
+! cache until we are ready to store final element of cache line.
+! Then store last element using the LRU version of BIS.
+!
+ andn %o2, 0x3f, %o5 ! %o5 is multiple of block size
+ and %o2, 0x3f, %o2 ! residue bytes in %o2
+!
+! We use STORE_MRU_ASI for the first seven stores to each cache line
+! followed by STORE_ASI (mark as LRU) for the last store. That
+! mixed approach reduces the probability that the cache line is removed
+! before we finish setting it, while minimizing the effects on
+! other cached values during a large memcpy
+!
+! ST_CHUNK batches up initial BIS operations for several cache lines
+! to allow multiple requests to not be blocked by overflowing the
+! the store miss buffer. Then the matching stores for all those
+! BIS operations are executed.
+!
+
+ sub %o0, 8, %o0 ! adjust %o0 for ASI alignment
+.Lalign_loop:
+ cmp %o5, ST_CHUNK*64
+ blu,pt %xcc, .Lalign_loop_fin
+ mov ST_CHUNK,%o3
+.Lalign_loop_start:
+ prefetch [%o1 + (ALIGN_PRE * BLOCK_SIZE)], 21
+ subcc %o3, 1, %o3
+ EX_LD(LOAD(ldx, %o1, %o4), memcpy_retl_o2_plus_o5)
+ add %o1, 64, %o1
+ add %o0, 8, %o0
+ EX_ST(STORE_INIT_MRU(%o4, %o0), memcpy_retl_o2_plus_o5)
+ bgu %xcc,.Lalign_loop_start
+ add %o0, 56, %o0
+
+ mov ST_CHUNK,%o3
+ sllx %o3, 6, %o4 ! ST_CHUNK*64
+ sub %o1, %o4, %o1 ! reset %o1
+ sub %o0, %o4, %o0 ! reset %o0
+
+.Lalign_loop_rest:
+ EX_LD(LOAD(ldx, %o1+8, %o4), memcpy_retl_o2_plus_o5)
+ add %o0, 16, %o0
+ EX_ST(STORE_INIT_MRU(%o4, %o0), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1+16, %o4), memcpy_retl_o2_plus_o5)
+ add %o0, 8, %o0
+ EX_ST(STORE_INIT_MRU(%o4, %o0), memcpy_retl_o2_plus_o5)
+ subcc %o3, 1, %o3
+ EX_LD(LOAD(ldx, %o1+24, %o4), memcpy_retl_o2_plus_o5)
+ add %o0, 8, %o0
+ EX_ST(STORE_INIT_MRU(%o4, %o0), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1+32, %o4), memcpy_retl_o2_plus_o5)
+ add %o0, 8, %o0
+ EX_ST(STORE_INIT_MRU(%o4, %o0), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1+40, %o4), memcpy_retl_o2_plus_o5)
+ add %o0, 8, %o0
+ EX_ST(STORE_INIT_MRU(%o4, %o0), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1+48, %o4), memcpy_retl_o2_plus_o5)
+ add %o1, 64, %o1
+ add %o0, 8, %o0
+ EX_ST(STORE_INIT_MRU(%o4, %o0), memcpy_retl_o2_plus_o5)
+ add %o0, 8, %o0
+ EX_LD(LOAD(ldx, %o1-8, %o4), memcpy_retl_o2_plus_o5)
+ sub %o5, 64, %o5
+ bgu %xcc,.Lalign_loop_rest
+ ! mark cache line as LRU
+ EX_ST(STORE_INIT(%o4, %o0), memcpy_retl_o2_plus_o5_plus_64)
+
+ cmp %o5, ST_CHUNK*64
+ bgu,pt %xcc, .Lalign_loop_start
+ mov ST_CHUNK,%o3
+
+ cmp %o5, 0
+ beq .Lalign_done
+ nop
+.Lalign_loop_fin:
+ EX_LD(LOAD(ldx, %o1, %o4), memcpy_retl_o2_plus_o5)
+ EX_ST(STORE(stx, %o4, %o0+8), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1+8, %o4), memcpy_retl_o2_plus_o5)
+ EX_ST(STORE(stx, %o4, %o0+8+8), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1+16, %o4), memcpy_retl_o2_plus_o5)
+ EX_ST(STORE(stx, %o4, %o0+8+16), memcpy_retl_o2_plus_o5)
+ subcc %o5, 64, %o5
+ EX_LD(LOAD(ldx, %o1+24, %o4), memcpy_retl_o2_plus_o5_64)
+ EX_ST(STORE(stx, %o4, %o0+8+24), memcpy_retl_o2_plus_o5_64)
+ EX_LD(LOAD(ldx, %o1+32, %o4), memcpy_retl_o2_plus_o5_64)
+ EX_ST(STORE(stx, %o4, %o0+8+32), memcpy_retl_o2_plus_o5_64)
+ EX_LD(LOAD(ldx, %o1+40, %o4), memcpy_retl_o2_plus_o5_64)
+ EX_ST(STORE(stx, %o4, %o0+8+40), memcpy_retl_o2_plus_o5_64)
+ EX_LD(LOAD(ldx, %o1+48, %o4), memcpy_retl_o2_plus_o5_64)
+ add %o1, 64, %o1
+ EX_ST(STORE(stx, %o4, %o0+8+48), memcpy_retl_o2_plus_o5_64)
+ add %o0, 64, %o0
+ EX_LD(LOAD(ldx, %o1-8, %o4), memcpy_retl_o2_plus_o5_64)
+ bgu %xcc,.Lalign_loop_fin
+ EX_ST(STORE(stx, %o4, %o0), memcpy_retl_o2_plus_o5_64)
+
+.Lalign_done:
+ add %o0, 8, %o0 ! restore %o0 from ASI alignment
+ membar #StoreStore
+ sub %o2, 63, %o2 ! adjust length to allow cc test
+ ba .Lmedl63 ! in .Lmedl63
+ nop
+
+ .align 16
+ ! Dst is on 8 byte boundary; src is not; remaining count > SMALL_MAX
+.Lunalignsetup:
+.Lunalignrejoin:
+ mov %g1, %o3 ! save %g1 as VISEntryHalf clobbers it
+#ifdef NON_USER_COPY
+ VISEntryHalfFast(.Lmedium_vis_entry_fail_cp)
+#else
+ VISEntryHalf
+#endif
+ mov %o3, %g1 ! restore %g1
+
+ set MED_UMAX, %o3
+ cmp %o2, %o3 ! check for.Lmedium unaligned limit
+ bge,pt %xcc,.Lunalign_large
+ prefetch [%o1 + (4 * BLOCK_SIZE)], 20
+ andn %o2, 0x3f, %o5 ! %o5 is multiple of block size
+ and %o2, 0x3f, %o2 ! residue bytes in %o2
+ cmp %o2, 8 ! Insure we do not load beyond
+ bgt .Lunalign_adjust ! end of source buffer
+ andn %o1, 0x7, %o4 ! %o4 has long word aligned src address
+ add %o2, 64, %o2 ! adjust to leave loop
+ sub %o5, 64, %o5 ! early if necessary
+.Lunalign_adjust:
+ alignaddr %o1, %g0, %g0 ! generate %gsr
+ add %o1, %o5, %o1 ! advance %o1 to after blocks
+ EX_LD_FP(LOAD(ldd, %o4, %f0), memcpy_retl_o2_plus_o5)
+.Lunalign_loop:
+ EX_LD_FP(LOAD(ldd, %o4+8, %f2), memcpy_retl_o2_plus_o5)
+ faligndata %f0, %f2, %f16
+ EX_LD_FP(LOAD(ldd, %o4+16, %f4), memcpy_retl_o2_plus_o5)
+ subcc %o5, BLOCK_SIZE, %o5
+ EX_ST_FP(STORE(std, %f16, %o0), memcpy_retl_o2_plus_o5_plus_64)
+ faligndata %f2, %f4, %f18
+ EX_LD_FP(LOAD(ldd, %o4+24, %f6), memcpy_retl_o2_plus_o5_plus_56)
+ EX_ST_FP(STORE(std, %f18, %o0+8), memcpy_retl_o2_plus_o5_plus_56)
+ faligndata %f4, %f6, %f20
+ EX_LD_FP(LOAD(ldd, %o4+32, %f8), memcpy_retl_o2_plus_o5_plus_48)
+ EX_ST_FP(STORE(std, %f20, %o0+16), memcpy_retl_o2_plus_o5_plus_48)
+ faligndata %f6, %f8, %f22
+ EX_LD_FP(LOAD(ldd, %o4+40, %f10), memcpy_retl_o2_plus_o5_plus_40)
+ EX_ST_FP(STORE(std, %f22, %o0+24), memcpy_retl_o2_plus_o5_plus_40)
+ faligndata %f8, %f10, %f24
+ EX_LD_FP(LOAD(ldd, %o4+48, %f12), memcpy_retl_o2_plus_o5_plus_32)
+ EX_ST_FP(STORE(std, %f24, %o0+32), memcpy_retl_o2_plus_o5_plus_32)
+ faligndata %f10, %f12, %f26
+ EX_LD_FP(LOAD(ldd, %o4+56, %f14), memcpy_retl_o2_plus_o5_plus_24)
+ add %o4, BLOCK_SIZE, %o4
+ EX_ST_FP(STORE(std, %f26, %o0+40), memcpy_retl_o2_plus_o5_plus_24)
+ faligndata %f12, %f14, %f28
+ EX_LD_FP(LOAD(ldd, %o4, %f0), memcpy_retl_o2_plus_o5_plus_16)
+ EX_ST_FP(STORE(std, %f28, %o0+48), memcpy_retl_o2_plus_o5_plus_16)
+ faligndata %f14, %f0, %f30
+ EX_ST_FP(STORE(std, %f30, %o0+56), memcpy_retl_o2_plus_o5_plus_8)
+ add %o0, BLOCK_SIZE, %o0
+ bgu,pt %xcc, .Lunalign_loop
+ prefetch [%o4 + (5 * BLOCK_SIZE)], 20
+ ba .Lunalign_done
+ nop
+
+.Lunalign_large:
+ andcc %o0, 0x3f, %o3 ! is dst 64-byte block aligned?
+ bz %xcc, .Lunalignsrc
+ sub %o3, 64, %o3 ! %o3 will be multiple of 8
+ neg %o3 ! bytes until dest is 64 byte aligned
+ sub %o2, %o3, %o2 ! update cnt with bytes to be moved
+ ! Move bytes according to source alignment
+ andcc %o1, 0x1, %o5
+ bnz %xcc, .Lunalignbyte ! check for byte alignment
+ nop
+ andcc %o1, 2, %o5 ! check for half word alignment
+ bnz %xcc, .Lunalignhalf
+ nop
+ ! Src is word aligned
+.Lunalignword:
+ EX_LD_FP(LOAD(ld, %o1, %o4), memcpy_retl_o2_plus_o3) ! load 4 bytes
+ add %o1, 8, %o1 ! increase src ptr by 8
+ EX_ST_FP(STORE(stw, %o4, %o0), memcpy_retl_o2_plus_o3) ! and store 4
+ subcc %o3, 8, %o3 ! decrease count by 8
+ EX_LD_FP(LOAD(ld, %o1-4, %o4), memcpy_retl_o2_plus_o3_plus_4)! load 4
+ add %o0, 8, %o0 ! increase dst ptr by 8
+ bnz %xcc, .Lunalignword
+ EX_ST_FP(STORE(stw, %o4, %o0-4), memcpy_retl_o2_plus_o3_plus_4)
+ ba .Lunalignsrc
+ nop
+
+ ! Src is half-word aligned
+.Lunalignhalf:
+ EX_LD_FP(LOAD(lduh, %o1, %o4), memcpy_retl_o2_plus_o3) ! load 2 bytes
+ sllx %o4, 32, %o5 ! shift left
+ EX_LD_FP(LOAD(lduw, %o1+2, %o4), memcpy_retl_o2_plus_o3)
+ or %o4, %o5, %o5
+ sllx %o5, 16, %o5
+ EX_LD_FP(LOAD(lduh, %o1+6, %o4), memcpy_retl_o2_plus_o3)
+ or %o4, %o5, %o5
+ EX_ST_FP(STORE(stx, %o5, %o0), memcpy_retl_o2_plus_o3)
+ add %o1, 8, %o1
+ subcc %o3, 8, %o3
+ bnz %xcc, .Lunalignhalf
+ add %o0, 8, %o0
+ ba .Lunalignsrc
+ nop
+
+ ! Src is Byte aligned
+.Lunalignbyte:
+ sub %o0, %o1, %o0 ! share pointer advance
+.Lunalignbyte_loop:
+ EX_LD_FP(LOAD(ldub, %o1, %o4), memcpy_retl_o2_plus_o3)
+ sllx %o4, 56, %o5
+ EX_LD_FP(LOAD(lduh, %o1+1, %o4), memcpy_retl_o2_plus_o3)
+ sllx %o4, 40, %o4
+ or %o4, %o5, %o5
+ EX_LD_FP(LOAD(lduh, %o1+3, %o4), memcpy_retl_o2_plus_o3)
+ sllx %o4, 24, %o4
+ or %o4, %o5, %o5
+ EX_LD_FP(LOAD(lduh, %o1+5, %o4), memcpy_retl_o2_plus_o3)
+ sllx %o4, 8, %o4
+ or %o4, %o5, %o5
+ EX_LD_FP(LOAD(ldub, %o1+7, %o4), memcpy_retl_o2_plus_o3)
+ or %o4, %o5, %o5
+ add %o0, %o1, %o0
+ EX_ST_FP(STORE(stx, %o5, %o0), memcpy_retl_o2_plus_o3)
+ sub %o0, %o1, %o0
+ subcc %o3, 8, %o3
+ bnz %xcc, .Lunalignbyte_loop
+ add %o1, 8, %o1
+ add %o0,%o1, %o0 ! restore pointer
+
+ ! Destination is now block (64 byte aligned)
+.Lunalignsrc:
+ andn %o2, 0x3f, %o5 ! %o5 is multiple of block size
+ and %o2, 0x3f, %o2 ! residue bytes in %o2
+ add %o2, 64, %o2 ! Insure we do not load beyond
+ sub %o5, 64, %o5 ! end of source buffer
+
+ andn %o1, 0x7, %o4 ! %o4 has long word aligned src address
+ alignaddr %o1, %g0, %g0 ! generate %gsr
+ add %o1, %o5, %o1 ! advance %o1 to after blocks
+
+ EX_LD_FP(LOAD(ldd, %o4, %f14), memcpy_retl_o2_plus_o5)
+ add %o4, 8, %o4
+.Lunalign_sloop:
+ EX_LD_FP(LOAD(ldd, %o4, %f16), memcpy_retl_o2_plus_o5)
+ faligndata %f14, %f16, %f0
+ EX_LD_FP(LOAD(ldd, %o4+8, %f18), memcpy_retl_o2_plus_o5)
+ faligndata %f16, %f18, %f2
+ EX_LD_FP(LOAD(ldd, %o4+16, %f20), memcpy_retl_o2_plus_o5)
+ faligndata %f18, %f20, %f4
+ EX_ST_FP(STORE(std, %f0, %o0), memcpy_retl_o2_plus_o5)
+ subcc %o5, 64, %o5
+ EX_LD_FP(LOAD(ldd, %o4+24, %f22), memcpy_retl_o2_plus_o5_plus_56)
+ faligndata %f20, %f22, %f6
+ EX_ST_FP(STORE(std, %f2, %o0+8), memcpy_retl_o2_plus_o5_plus_56)
+ EX_LD_FP(LOAD(ldd, %o4+32, %f24), memcpy_retl_o2_plus_o5_plus_48)
+ faligndata %f22, %f24, %f8
+ EX_ST_FP(STORE(std, %f4, %o0+16), memcpy_retl_o2_plus_o5_plus_48)
+ EX_LD_FP(LOAD(ldd, %o4+40, %f26), memcpy_retl_o2_plus_o5_plus_40)
+ faligndata %f24, %f26, %f10
+ EX_ST_FP(STORE(std, %f6, %o0+24), memcpy_retl_o2_plus_o5_plus_40)
+ EX_LD_FP(LOAD(ldd, %o4+48, %f28), memcpy_retl_o2_plus_o5_plus_40)
+ faligndata %f26, %f28, %f12
+ EX_ST_FP(STORE(std, %f8, %o0+32), memcpy_retl_o2_plus_o5_plus_40)
+ add %o4, 64, %o4
+ EX_LD_FP(LOAD(ldd, %o4-8, %f30), memcpy_retl_o2_plus_o5_plus_40)
+ faligndata %f28, %f30, %f14
+ EX_ST_FP(STORE(std, %f10, %o0+40), memcpy_retl_o2_plus_o5_plus_40)
+ EX_ST_FP(STORE(std, %f12, %o0+48), memcpy_retl_o2_plus_o5_plus_40)
+ add %o0, 64, %o0
+ EX_ST_FP(STORE(std, %f14, %o0-8), memcpy_retl_o2_plus_o5_plus_40)
+ fsrc2 %f30, %f14
+ bgu,pt %xcc, .Lunalign_sloop
+ prefetch [%o4 + (8 * BLOCK_SIZE)], 20
+
+.Lunalign_done:
+ ! Handle trailing bytes, 64 to 127
+ ! Dest long word aligned, Src not long word aligned
+ cmp %o2, 15
+ bleu %xcc, .Lunalign_short
+
+ andn %o2, 0x7, %o5 ! %o5 is multiple of 8
+ and %o2, 0x7, %o2 ! residue bytes in %o2
+ add %o2, 8, %o2
+ sub %o5, 8, %o5 ! insure we do not load past end of src
+ andn %o1, 0x7, %o4 ! %o4 has long word aligned src address
+ add %o1, %o5, %o1 ! advance %o1 to after multiple of 8
+ EX_LD_FP(LOAD(ldd, %o4, %f0), memcpy_retl_o2_plus_o5)! fetch partialword
+.Lunalign_by8:
+ EX_LD_FP(LOAD(ldd, %o4+8, %f2), memcpy_retl_o2_plus_o5)
+ add %o4, 8, %o4
+ faligndata %f0, %f2, %f16
+ subcc %o5, 8, %o5
+ EX_ST_FP(STORE(std, %f16, %o0), memcpy_retl_o2_plus_o5)
+ fsrc2 %f2, %f0
+ bgu,pt %xcc, .Lunalign_by8
+ add %o0, 8, %o0
+
+.Lunalign_short:
+#ifdef NON_USER_COPY
+ VISExitHalfFast
+#else
+ VISExitHalf
+#endif
+ ba .Lsmallrest
+ nop
+
+/*
+ * This is a special case of nested memcpy. This can happen when kernel
+ * calls unaligned memcpy back to back without saving FP registers. We need
+ * traps(context switch) to save/restore FP registers. If the kernel calls
+ * memcpy without this trap sequence we will hit FP corruption. Let's use
+ * the normal integer load/store method in this case.
+ */
+
+#ifdef NON_USER_COPY
+.Lmedium_vis_entry_fail_cp:
+ or %o0, %o1, %g2
+#endif
+.Lmedium_cp:
+ LOAD(prefetch, %o1 + 0x40, #n_reads_strong)
+ andcc %g2, 0x7, %g0
+ bne,pn %xcc, .Lmedium_unaligned_cp
+ nop
+
+.Lmedium_noprefetch_cp:
+ andncc %o2, 0x20 - 1, %o5
+ be,pn %xcc, 2f
+ sub %o2, %o5, %o2
+1: EX_LD(LOAD(ldx, %o1 + 0x00, %o3), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1 + 0x08, %g2), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1 + 0x10, %g7), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1 + 0x18, %o4), memcpy_retl_o2_plus_o5)
+ add %o1, 0x20, %o1
+ subcc %o5, 0x20, %o5
+ EX_ST(STORE(stx, %o3, %o0 + 0x00), memcpy_retl_o2_plus_o5_plus_32)
+ EX_ST(STORE(stx, %g2, %o0 + 0x08), memcpy_retl_o2_plus_o5_plus_24)
+ EX_ST(STORE(stx, %g7, %o0 + 0x10), memcpy_retl_o2_plus_o5_plus_24)
+ EX_ST(STORE(stx, %o4, %o0 + 0x18), memcpy_retl_o2_plus_o5_plus_8)
+ bne,pt %xcc, 1b
+ add %o0, 0x20, %o0
+2: andcc %o2, 0x18, %o5
+ be,pt %xcc, 3f
+ sub %o2, %o5, %o2
+1: EX_LD(LOAD(ldx, %o1 + 0x00, %o3), memcpy_retl_o2_plus_o5)
+ add %o1, 0x08, %o1
+ add %o0, 0x08, %o0
+ subcc %o5, 0x08, %o5
+ bne,pt %xcc, 1b
+ EX_ST(STORE(stx, %o3, %o0 - 0x08), memcpy_retl_o2_plus_o5_plus_8)
+3: brz,pt %o2, .Lexit_cp
+ cmp %o2, 0x04
+ bl,pn %xcc, .Ltiny_cp
+ nop
+ EX_LD(LOAD(lduw, %o1 + 0x00, %o3), memcpy_retl_o2)
+ add %o1, 0x04, %o1
+ add %o0, 0x04, %o0
+ subcc %o2, 0x04, %o2
+ bne,pn %xcc, .Ltiny_cp
+ EX_ST(STORE(stw, %o3, %o0 - 0x04), memcpy_retl_o2_plus_4)
+ ba,a,pt %xcc, .Lexit_cp
+
+.Lmedium_unaligned_cp:
+ /* First get dest 8 byte aligned. */
+ sub %g0, %o0, %o3
+ and %o3, 0x7, %o3
+ brz,pt %o3, 2f
+ sub %o2, %o3, %o2
+
+1: EX_LD(LOAD(ldub, %o1 + 0x00, %g2), memcpy_retl_o2_plus_g1)
+ add %o1, 1, %o1
+ subcc %o3, 1, %o3
+ add %o0, 1, %o0
+ bne,pt %xcc, 1b
+ EX_ST(STORE(stb, %g2, %o0 - 0x01), memcpy_retl_o2_plus_g1_plus_1)
+2:
+ and %o1, 0x7, %o3
+ brz,pn %o3, .Lmedium_noprefetch_cp
+ sll %o3, 3, %o3
+ mov 64, %g2
+ sub %g2, %o3, %g2
+ andn %o1, 0x7, %o1
+ EX_LD(LOAD(ldx, %o1 + 0x00, %o4), memcpy_retl_o2)
+ sllx %o4, %o3, %o4
+ andn %o2, 0x08 - 1, %o5
+ sub %o2, %o5, %o2
+
+1: EX_LD(LOAD(ldx, %o1 + 0x08, %g3), memcpy_retl_o2_plus_o5)
+ add %o1, 0x08, %o1
+ subcc %o5, 0x08, %o5
+ srlx %g3, %g2, %g7
+ or %g7, %o4, %g7
+ EX_ST(STORE(stx, %g7, %o0 + 0x00), memcpy_retl_o2_plus_o5_plus_8)
+ add %o0, 0x08, %o0
+ bne,pt %xcc, 1b
+ sllx %g3, %o3, %o4
+ srl %o3, 3, %o3
+ add %o1, %o3, %o1
+ brz,pn %o2, .Lexit_cp
+ nop
+ ba,pt %xcc, .Lsmall_unaligned_cp
+
+.Ltiny_cp:
+ EX_LD(LOAD(ldub, %o1 + 0x00, %o3), memcpy_retl_o2)
+ subcc %o2, 1, %o2
+ be,pn %xcc, .Lexit_cp
+ EX_ST(STORE(stb, %o3, %o0 + 0x00), memcpy_retl_o2_plus_1)
+ EX_LD(LOAD(ldub, %o1 + 0x01, %o3), memcpy_retl_o2)
+ subcc %o2, 1, %o2
+ be,pn %xcc, .Lexit_cp
+ EX_ST(STORE(stb, %o3, %o0 + 0x01), memcpy_retl_o2_plus_1)
+ EX_LD(LOAD(ldub, %o1 + 0x02, %o3), memcpy_retl_o2)
+ ba,pt %xcc, .Lexit_cp
+ EX_ST(STORE(stb, %o3, %o0 + 0x02), memcpy_retl_o2)
+
+.Lsmall_cp:
+ andcc %g2, 0x3, %g0
+ bne,pn %xcc, .Lsmall_unaligned_cp
+ andn %o2, 0x4 - 1, %o5
+ sub %o2, %o5, %o2
+1:
+ EX_LD(LOAD(lduw, %o1 + 0x00, %o3), memcpy_retl_o2_plus_o5)
+ add %o1, 0x04, %o1
+ subcc %o5, 0x04, %o5
+ add %o0, 0x04, %o0
+ bne,pt %xcc, 1b
+ EX_ST(STORE(stw, %o3, %o0 - 0x04), memcpy_retl_o2_plus_o5_plus_4)
+ brz,pt %o2, .Lexit_cp
+ nop
+ ba,a,pt %xcc, .Ltiny_cp
+
+.Lsmall_unaligned_cp:
+1: EX_LD(LOAD(ldub, %o1 + 0x00, %o3), memcpy_retl_o2)
+ add %o1, 1, %o1
+ add %o0, 1, %o0
+ subcc %o2, 1, %o2
+ bne,pt %xcc, 1b
+ EX_ST(STORE(stb, %o3, %o0 - 0x01), memcpy_retl_o2_plus_1)
+ ba,a,pt %xcc, .Lexit_cp
+
+.Lsmallrest:
+ tst %o2
+ bz,pt %xcc, .Lsmallx
+ cmp %o2, 4
+ blt,pn %xcc, .Lsmallleft3
+ nop
+ sub %o2, 3, %o2
+.Lsmallnotalign4:
+ EX_LD(LOAD(ldub, %o1, %o3), memcpy_retl_o2_plus_3)! read byte
+ subcc %o2, 4, %o2 ! reduce count by 4
+ EX_ST(STORE(stb, %o3, %o0), memcpy_retl_o2_plus_7)! write byte & repeat
+ EX_LD(LOAD(ldub, %o1+1, %o3), memcpy_retl_o2_plus_6)! for total of 4
+ add %o1, 4, %o1 ! advance SRC by 4
+ EX_ST(STORE(stb, %o3, %o0+1), memcpy_retl_o2_plus_6)
+ EX_LD(LOAD(ldub, %o1-2, %o3), memcpy_retl_o2_plus_5)
+ add %o0, 4, %o0 ! advance DST by 4
+ EX_ST(STORE(stb, %o3, %o0-2), memcpy_retl_o2_plus_5)
+ EX_LD(LOAD(ldub, %o1-1, %o3), memcpy_retl_o2_plus_4)
+ bgu,pt %xcc, .Lsmallnotalign4 ! loop til 3 or fewer bytes remain
+ EX_ST(STORE(stb, %o3, %o0-1), memcpy_retl_o2_plus_4)
+ addcc %o2, 3, %o2 ! restore count
+ bz,pt %xcc, .Lsmallx
+.Lsmallleft3: ! 1, 2, or 3 bytes remain
+ subcc %o2, 1, %o2
+ EX_LD(LOAD(ldub, %o1, %o3), memcpy_retl_o2_plus_1) ! load one byte
+ bz,pt %xcc, .Lsmallx
+ EX_ST(STORE(stb, %o3, %o0), memcpy_retl_o2_plus_1) ! store one byte
+ EX_LD(LOAD(ldub, %o1+1, %o3), memcpy_retl_o2) ! load second byte
+ subcc %o2, 1, %o2
+ bz,pt %xcc, .Lsmallx
+ EX_ST(STORE(stb, %o3, %o0+1), memcpy_retl_o2_plus_1)! store second byte
+ EX_LD(LOAD(ldub, %o1+2, %o3), memcpy_retl_o2) ! load third byte
+ EX_ST(STORE(stb, %o3, %o0+2), memcpy_retl_o2) ! store third byte
+.Lsmallx:
+ retl
+ mov EX_RETVAL(%g1), %o0
+.Lsmallfin:
+ tst %o2
+ bnz,pn %xcc, .Lsmallleft3
+ nop
+ retl
+ mov EX_RETVAL(%g1), %o0 ! restore %o0
+.Lexit_cp:
+ retl
+ mov EX_RETVAL(%g1), %o0
+ .size FUNC_NAME, .-FUNC_NAME
diff --git a/arch/sparc/lib/M7memset.S b/arch/sparc/lib/M7memset.S
new file mode 100644
index 000000000000..62ea91b3a6b8
--- /dev/null
+++ b/arch/sparc/lib/M7memset.S
@@ -0,0 +1,352 @@
+/*
+ * M7memset.S: SPARC M7 optimized memset.
+ *
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ */
+
+/*
+ * M7memset.S: M7 optimized memset.
+ *
+ * char *memset(sp, c, n)
+ *
+ * Set an array of n chars starting at sp to the character c.
+ * Return sp.
+ *
+ * Fast assembler language version of the following C-program for memset
+ * which represents the `standard' for the C-library.
+ *
+ * void *
+ * memset(void *sp1, int c, size_t n)
+ * {
+ * if (n != 0) {
+ * char *sp = sp1;
+ * do {
+ * *sp++ = (char)c;
+ * } while (--n != 0);
+ * }
+ * return (sp1);
+ * }
+ *
+ * The algorithm is as follows :
+ *
+ * For small 6 or fewer bytes stores, bytes will be stored.
+ *
+ * For less than 32 bytes stores, align the address on 4 byte boundary.
+ * Then store as many 4-byte chunks, followed by trailing bytes.
+ *
+ * For sizes greater than 32 bytes, align the address on 8 byte boundary.
+ * if (count >= 64) {
+ * store 8-bytes chunks to align the address on 64 byte boundary
+ * if (value to be set is zero && count >= MIN_ZERO) {
+ * Using BIS stores, set the first long word of each
+ * 64-byte cache line to zero which will also clear the
+ * other seven long words of the cache line.
+ * }
+ * else if (count >= MIN_LOOP) {
+ * Using BIS stores, set the first long word of each of
+ * ST_CHUNK cache lines (64 bytes each) before the main
+ * loop is entered.
+ * In the main loop, continue pre-setting the first long
+ * word of each cache line ST_CHUNK lines in advance while
+ * setting the other seven long words (56 bytes) of each
+ * cache line until fewer than ST_CHUNK*64 bytes remain.
+ * Then set the remaining seven long words of each cache
+ * line that has already had its first long word set.
+ * }
+ * store remaining data in 64-byte chunks until less than
+ * 64 bytes remain.
+ * }
+ * Store as many 8-byte chunks, followed by trailing bytes.
+ *
+ * BIS = Block Init Store
+ * Doing the advance store of the first element of the cache line
+ * initiates the displacement of a cache line while only using a single
+ * instruction in the pipeline. That avoids various pipeline delays,
+ * such as filling the miss buffer. The performance effect is
+ * similar to prefetching for normal stores.
+ * The special case for zero fills runs faster and uses fewer instruction
+ * cycles than the normal memset loop.
+ *
+ * We only use BIS for memset of greater than MIN_LOOP bytes because a sequence
+ * BIS stores must be followed by a membar #StoreStore. The benefit of
+ * the BIS store must be balanced against the cost of the membar operation.
+ */
+
+/*
+ * ASI_STBI_P marks the cache line as "least recently used"
+ * which means if many threads are active, it has a high chance
+ * of being pushed out of the cache between the first initializing
+ * store and the final stores.
+ * Thus, we use ASI_STBIMRU_P which marks the cache line as
+ * "most recently used" for all but the last store to the cache line.
+ */
+
+#include <asm/asi.h>
+#include <asm/page.h>
+
+#define ASI_STBI_P ASI_BLK_INIT_QUAD_LDD_P
+#define ASI_STBIMRU_P ASI_ST_BLKINIT_MRU_P
+
+
+#define ST_CHUNK 24 /* multiple of 4 due to loop unrolling */
+#define MIN_LOOP 16320
+#define MIN_ZERO 512
+
+ .section ".text"
+ .align 32
+
+/*
+ * Define clear_page(dest) as memset(dest, 0, PAGE_SIZE)
+ * (can create a more optimized version later.)
+ */
+ .globl M7clear_page
+ .globl M7clear_user_page
+M7clear_page: /* clear_page(dest) */
+M7clear_user_page:
+ set PAGE_SIZE, %o1
+ /* fall through into bzero code */
+
+ .size M7clear_page,.-M7clear_page
+ .size M7clear_user_page,.-M7clear_user_page
+
+/*
+ * Define bzero(dest, n) as memset(dest, 0, n)
+ * (can create a more optimized version later.)
+ */
+ .globl M7bzero
+M7bzero: /* bzero(dest, size) */
+ mov %o1, %o2
+ mov 0, %o1
+ /* fall through into memset code */
+
+ .size M7bzero,.-M7bzero
+
+ .global M7memset
+ .type M7memset, #function
+ .register %g3, #scratch
+M7memset:
+ mov %o0, %o5 ! copy sp1 before using it
+ cmp %o2, 7 ! if small counts, just write bytes
+ bleu,pn %xcc, .wrchar
+ and %o1, 0xff, %o1 ! o1 is (char)c
+
+ sll %o1, 8, %o3
+ or %o1, %o3, %o1 ! now o1 has 2 bytes of c
+ sll %o1, 16, %o3
+ cmp %o2, 32
+ blu,pn %xcc, .wdalign
+ or %o1, %o3, %o1 ! now o1 has 4 bytes of c
+
+ sllx %o1, 32, %o3
+ or %o1, %o3, %o1 ! now o1 has 8 bytes of c
+
+.dbalign:
+ andcc %o5, 7, %o3 ! is sp1 aligned on a 8 byte bound?
+ bz,pt %xcc, .blkalign ! already long word aligned
+ sub %o3, 8, %o3 ! -(bytes till long word aligned)
+
+ add %o2, %o3, %o2 ! update o2 with new count
+ ! Set -(%o3) bytes till sp1 long word aligned
+1: stb %o1, [%o5] ! there is at least 1 byte to set
+ inccc %o3 ! byte clearing loop
+ bl,pt %xcc, 1b
+ inc %o5
+
+ ! Now sp1 is long word aligned (sp1 is found in %o5)
+.blkalign:
+ cmp %o2, 64 ! check if there are 64 bytes to set
+ blu,pn %xcc, .wrshort
+ mov %o2, %o3
+
+ andcc %o5, 63, %o3 ! is sp1 block aligned?
+ bz,pt %xcc, .blkwr ! now block aligned
+ sub %o3, 64, %o3 ! o3 is -(bytes till block aligned)
+ add %o2, %o3, %o2 ! o2 is the remainder
+
+ ! Store -(%o3) bytes till dst is block (64 byte) aligned.
+ ! Use long word stores.
+ ! Recall that dst is already long word aligned
+1:
+ addcc %o3, 8, %o3
+ stx %o1, [%o5]
+ bl,pt %xcc, 1b
+ add %o5, 8, %o5
+
+ ! Now sp1 is block aligned
+.blkwr:
+ andn %o2, 63, %o4 ! calculate size of blocks in bytes
+ brz,pn %o1, .wrzero ! special case if c == 0
+ and %o2, 63, %o3 ! %o3 = bytes left after blk stores.
+
+ set MIN_LOOP, %g1
+ cmp %o4, %g1 ! check there are enough bytes to set
+ blu,pn %xcc, .short_set ! to justify cost of membar
+ ! must be > pre-cleared lines
+ nop
+
+ ! initial cache-clearing stores
+ ! get store pipeline moving
+ rd %asi, %g3 ! save %asi to be restored later
+ wr %g0, ASI_STBIMRU_P, %asi
+
+ ! Primary memset loop for large memsets
+.wr_loop:
+ sub %o5, 8, %o5 ! adjust %o5 for ASI store alignment
+ mov ST_CHUNK, %g1
+.wr_loop_start:
+ stxa %o1, [%o5+8]%asi
+ subcc %g1, 4, %g1
+ stxa %o1, [%o5+8+64]%asi
+ add %o5, 256, %o5
+ stxa %o1, [%o5+8-128]%asi
+ bgu %xcc, .wr_loop_start
+ stxa %o1, [%o5+8-64]%asi
+
+ sub %o5, ST_CHUNK*64, %o5 ! reset %o5
+ mov ST_CHUNK, %g1
+
+.wr_loop_rest:
+ stxa %o1, [%o5+8+8]%asi
+ sub %o4, 64, %o4
+ stxa %o1, [%o5+16+8]%asi
+ subcc %g1, 1, %g1
+ stxa %o1, [%o5+24+8]%asi
+ stxa %o1, [%o5+32+8]%asi
+ stxa %o1, [%o5+40+8]%asi
+ add %o5, 64, %o5
+ stxa %o1, [%o5-8]%asi
+ bgu %xcc, .wr_loop_rest
+ stxa %o1, [%o5]ASI_STBI_P
+
+ ! If more than ST_CHUNK*64 bytes remain to set, continue
+ ! setting the first long word of each cache line in advance
+ ! to keep the store pipeline moving.
+
+ cmp %o4, ST_CHUNK*64
+ bge,pt %xcc, .wr_loop_start
+ mov ST_CHUNK, %g1
+
+ brz,a,pn %o4, .asi_done
+ add %o5, 8, %o5 ! restore %o5 offset
+
+.wr_loop_small:
+ stxa %o1, [%o5+8]%asi
+ stxa %o1, [%o5+8+8]%asi
+ stxa %o1, [%o5+16+8]%asi
+ stxa %o1, [%o5+24+8]%asi
+ stxa %o1, [%o5+32+8]%asi
+ subcc %o4, 64, %o4
+ stxa %o1, [%o5+40+8]%asi
+ add %o5, 64, %o5
+ stxa %o1, [%o5-8]%asi
+ bgu,pt %xcc, .wr_loop_small
+ stxa %o1, [%o5]ASI_STBI_P
+
+ ba .asi_done
+ add %o5, 8, %o5 ! restore %o5 offset
+
+ ! Special case loop for zero fill memsets
+ ! For each 64 byte cache line, single STBI to first element
+ ! clears line
+.wrzero:
+ cmp %o4, MIN_ZERO ! check if enough bytes to set
+ ! to pay %asi + membar cost
+ blu %xcc, .short_set
+ nop
+ sub %o4, 256, %o4
+
+.wrzero_loop:
+ mov 64, %g3
+ stxa %o1, [%o5]ASI_STBI_P
+ subcc %o4, 256, %o4
+ stxa %o1, [%o5+%g3]ASI_STBI_P
+ add %o5, 256, %o5
+ sub %g3, 192, %g3
+ stxa %o1, [%o5+%g3]ASI_STBI_P
+ add %g3, 64, %g3
+ bge,pt %xcc, .wrzero_loop
+ stxa %o1, [%o5+%g3]ASI_STBI_P
+ add %o4, 256, %o4
+
+ brz,pn %o4, .bsi_done
+ nop
+
+.wrzero_small:
+ stxa %o1, [%o5]ASI_STBI_P
+ subcc %o4, 64, %o4
+ bgu,pt %xcc, .wrzero_small
+ add %o5, 64, %o5
+ ba,a .bsi_done
+
+.asi_done:
+ wr %g3, 0x0, %asi ! restored saved %asi
+.bsi_done:
+ membar #StoreStore ! required by use of Block Store Init
+
+.short_set:
+ cmp %o4, 64 ! check if 64 bytes to set
+ blu %xcc, 5f
+ nop
+4: ! set final blocks of 64 bytes
+ stx %o1, [%o5]
+ stx %o1, [%o5+8]
+ stx %o1, [%o5+16]
+ stx %o1, [%o5+24]
+ subcc %o4, 64, %o4
+ stx %o1, [%o5+32]
+ stx %o1, [%o5+40]
+ add %o5, 64, %o5
+ stx %o1, [%o5-16]
+ bgu,pt %xcc, 4b
+ stx %o1, [%o5-8]
+
+5:
+ ! Set the remaining long words
+.wrshort:
+ subcc %o3, 8, %o3 ! Can we store any long words?
+ blu,pn %xcc, .wrchars
+ and %o2, 7, %o2 ! calc bytes left after long words
+6:
+ subcc %o3, 8, %o3
+ stx %o1, [%o5] ! store the long words
+ bgeu,pt %xcc, 6b
+ add %o5, 8, %o5
+
+.wrchars: ! check for extra chars
+ brnz %o2, .wrfin
+ nop
+ retl
+ nop
+
+.wdalign:
+ andcc %o5, 3, %o3 ! is sp1 aligned on a word boundary
+ bz,pn %xcc, .wrword
+ andn %o2, 3, %o3 ! create word sized count in %o3
+
+ dec %o2 ! decrement count
+ stb %o1, [%o5] ! clear a byte
+ b .wdalign
+ inc %o5 ! next byte
+
+.wrword:
+ subcc %o3, 4, %o3
+ st %o1, [%o5] ! 4-byte writing loop
+ bnz,pt %xcc, .wrword
+ add %o5, 4, %o5
+
+ and %o2, 3, %o2 ! leftover count, if any
+
+.wrchar:
+ ! Set the remaining bytes, if any
+ brz %o2, .exit
+ nop
+.wrfin:
+ deccc %o2
+ stb %o1, [%o5]
+ bgu,pt %xcc, .wrfin
+ inc %o5
+.exit:
+ retl ! %o0 was preserved
+ nop
+
+ .size M7memset,.-M7memset
diff --git a/arch/sparc/lib/M7patch.S b/arch/sparc/lib/M7patch.S
new file mode 100644
index 000000000000..9000b7bc5f2b
--- /dev/null
+++ b/arch/sparc/lib/M7patch.S
@@ -0,0 +1,51 @@
+/*
+ * M7patch.S: Patch generic routines with M7 variant.
+ *
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/linkage.h>
+
+#define BRANCH_ALWAYS 0x10680000
+#define NOP 0x01000000
+#define NG_DO_PATCH(OLD, NEW) \
+ sethi %hi(NEW), %g1; \
+ or %g1, %lo(NEW), %g1; \
+ sethi %hi(OLD), %g2; \
+ or %g2, %lo(OLD), %g2; \
+ sub %g1, %g2, %g1; \
+ sethi %hi(BRANCH_ALWAYS), %g3; \
+ sll %g1, 11, %g1; \
+ srl %g1, 11 + 2, %g1; \
+ or %g3, %lo(BRANCH_ALWAYS), %g3; \
+ or %g3, %g1, %g3; \
+ stw %g3, [%g2]; \
+ sethi %hi(NOP), %g3; \
+ or %g3, %lo(NOP), %g3; \
+ stw %g3, [%g2 + 0x4]; \
+ flush %g2;
+
+ENTRY(m7_patch_copyops)
+ NG_DO_PATCH(memcpy, M7memcpy)
+ NG_DO_PATCH(raw_copy_from_user, M7copy_from_user)
+ NG_DO_PATCH(raw_copy_to_user, M7copy_to_user)
+ retl
+ nop
+ENDPROC(m7_patch_copyops)
+
+ENTRY(m7_patch_bzero)
+ NG_DO_PATCH(memset, M7memset)
+ NG_DO_PATCH(__bzero, M7bzero)
+ NG_DO_PATCH(__clear_user, NGclear_user)
+ NG_DO_PATCH(tsb_init, NGtsb_init)
+ retl
+ nop
+ENDPROC(m7_patch_bzero)
+
+ENTRY(m7_patch_pageops)
+ NG_DO_PATCH(copy_user_page, NG4copy_user_page)
+ NG_DO_PATCH(_clear_page, M7clear_page)
+ NG_DO_PATCH(clear_user_page, M7clear_user_page)
+ retl
+ nop
+ENDPROC(m7_patch_pageops)
diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
index 07c03e72d812..a1a2d39ec96e 100644
--- a/arch/sparc/lib/Makefile
+++ b/arch/sparc/lib/Makefile
@@ -36,6 +36,11 @@ lib-$(CONFIG_SPARC64) += NG2patch.o
lib-$(CONFIG_SPARC64) += NG4memcpy.o NG4copy_from_user.o NG4copy_to_user.o
lib-$(CONFIG_SPARC64) += NG4patch.o NG4copy_page.o NG4clear_page.o NG4memset.o
+lib-$(CONFIG_SPARC64) += Memcpy_utils.o
+
+lib-$(CONFIG_SPARC64) += M7memcpy.o M7copy_from_user.o M7copy_to_user.o
+lib-$(CONFIG_SPARC64) += M7patch.o M7memset.o
+
lib-$(CONFIG_SPARC64) += GENmemcpy.o GENcopy_from_user.o GENcopy_to_user.o
lib-$(CONFIG_SPARC64) += GENpatch.o GENpage.o GENbzero.o
diff --git a/arch/sparc/lib/Memcpy_utils.S b/arch/sparc/lib/Memcpy_utils.S
new file mode 100644
index 000000000000..64fbac28b3db
--- /dev/null
+++ b/arch/sparc/lib/Memcpy_utils.S
@@ -0,0 +1,345 @@
+#ifndef __ASM_MEMCPY_UTILS
+#define __ASM_MEMCPY_UTILS
+
+#include <linux/linkage.h>
+#include <asm/asi.h>
+#include <asm/visasm.h>
+
+ENTRY(__restore_asi_fp)
+ VISExitHalf
+ retl
+ wr %g0, ASI_AIUS, %asi
+ENDPROC(__restore_asi_fp)
+
+ENTRY(__restore_asi)
+ retl
+ wr %g0, ASI_AIUS, %asi
+ENDPROC(__restore_asi)
+
+ENTRY(memcpy_retl_o2)
+ ba,pt %xcc, __restore_asi
+ mov %o2, %o0
+ENDPROC(memcpy_retl_o2)
+ENTRY(memcpy_retl_o2_plus_1)
+ ba,pt %xcc, __restore_asi
+ add %o2, 1, %o0
+ENDPROC(memcpy_retl_o2_plus_1)
+ENTRY(memcpy_retl_o2_plus_3)
+ ba,pt %xcc, __restore_asi
+ add %o2, 3, %o0
+ENDPROC(memcpy_retl_o2_plus_3)
+ENTRY(memcpy_retl_o2_plus_4)
+ ba,pt %xcc, __restore_asi
+ add %o2, 4, %o0
+ENDPROC(memcpy_retl_o2_plus_4)
+ENTRY(memcpy_retl_o2_plus_5)
+ ba,pt %xcc, __restore_asi
+ add %o2, 5, %o0
+ENDPROC(memcpy_retl_o2_plus_5)
+ENTRY(memcpy_retl_o2_plus_6)
+ ba,pt %xcc, __restore_asi
+ add %o2, 6, %o0
+ENDPROC(memcpy_retl_o2_plus_6)
+ENTRY(memcpy_retl_o2_plus_7)
+ ba,pt %xcc, __restore_asi
+ add %o2, 7, %o0
+ENDPROC(memcpy_retl_o2_plus_7)
+ENTRY(memcpy_retl_o2_plus_8)
+ ba,pt %xcc, __restore_asi
+ add %o2, 8, %o0
+ENDPROC(memcpy_retl_o2_plus_8)
+ENTRY(memcpy_retl_o2_plus_15)
+ ba,pt %xcc, __restore_asi
+ add %o2, 15, %o0
+ENDPROC(memcpy_retl_o2_plus_15)
+ENTRY(memcpy_retl_o2_plus_15_8)
+ add %o2, 15, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 8, %o0
+ENDPROC(memcpy_retl_o2_plus_15_8)
+ENTRY(memcpy_retl_o2_plus_16)
+ ba,pt %xcc, __restore_asi
+ add %o2, 16, %o0
+ENDPROC(memcpy_retl_o2_plus_16)
+ENTRY(memcpy_retl_o2_plus_24)
+ ba,pt %xcc, __restore_asi
+ add %o2, 24, %o0
+ENDPROC(memcpy_retl_o2_plus_24)
+ENTRY(memcpy_retl_o2_plus_31)
+ ba,pt %xcc, __restore_asi
+ add %o2, 31, %o0
+ENDPROC(memcpy_retl_o2_plus_31)
+ENTRY(memcpy_retl_o2_plus_32)
+ ba,pt %xcc, __restore_asi
+ add %o2, 32, %o0
+ENDPROC(memcpy_retl_o2_plus_32)
+ENTRY(memcpy_retl_o2_plus_31_32)
+ add %o2, 31, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 32, %o0
+ENDPROC(memcpy_retl_o2_plus_31_32)
+ENTRY(memcpy_retl_o2_plus_31_24)
+ add %o2, 31, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 24, %o0
+ENDPROC(memcpy_retl_o2_plus_31_24)
+ENTRY(memcpy_retl_o2_plus_31_16)
+ add %o2, 31, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 16, %o0
+ENDPROC(memcpy_retl_o2_plus_31_16)
+ENTRY(memcpy_retl_o2_plus_31_8)
+ add %o2, 31, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 8, %o0
+ENDPROC(memcpy_retl_o2_plus_31_8)
+ENTRY(memcpy_retl_o2_plus_63)
+ ba,pt %xcc, __restore_asi
+ add %o2, 63, %o0
+ENDPROC(memcpy_retl_o2_plus_63)
+ENTRY(memcpy_retl_o2_plus_63_64)
+ add %o2, 63, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 64, %o0
+ENDPROC(memcpy_retl_o2_plus_63_64)
+ENTRY(memcpy_retl_o2_plus_63_56)
+ add %o2, 63, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 56, %o0
+ENDPROC(memcpy_retl_o2_plus_63_56)
+ENTRY(memcpy_retl_o2_plus_63_48)
+ add %o2, 63, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 48, %o0
+ENDPROC(memcpy_retl_o2_plus_63_48)
+ENTRY(memcpy_retl_o2_plus_63_40)
+ add %o2, 63, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 40, %o0
+ENDPROC(memcpy_retl_o2_plus_63_40)
+ENTRY(memcpy_retl_o2_plus_63_32)
+ add %o2, 63, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 32, %o0
+ENDPROC(memcpy_retl_o2_plus_63_32)
+ENTRY(memcpy_retl_o2_plus_63_24)
+ add %o2, 63, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 24, %o0
+ENDPROC(memcpy_retl_o2_plus_63_24)
+ENTRY(memcpy_retl_o2_plus_63_16)
+ add %o2, 63, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 16, %o0
+ENDPROC(memcpy_retl_o2_plus_63_16)
+ENTRY(memcpy_retl_o2_plus_63_8)
+ add %o2, 63, %o2
+ ba,pt %xcc, __restore_asi
+ add %o2, 8, %o0
+ENDPROC(memcpy_retl_o2_plus_63_8)
+ENTRY(memcpy_retl_o2_plus_o5)
+ ba,pt %xcc, __restore_asi
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5)
+ENTRY(memcpy_retl_o2_plus_o5_plus_1)
+ add %o5, 1, %o5
+ ba,pt %xcc, __restore_asi
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_1)
+ENTRY(memcpy_retl_o2_plus_o5_plus_4)
+ add %o5, 4, %o5
+ ba,pt %xcc, __restore_asi
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_4)
+ENTRY(memcpy_retl_o2_plus_o5_plus_8)
+ add %o5, 8, %o5
+ ba,pt %xcc, __restore_asi
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_8)
+ENTRY(memcpy_retl_o2_plus_o5_plus_16)
+ add %o5, 16, %o5
+ ba,pt %xcc, __restore_asi
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_16)
+ENTRY(memcpy_retl_o2_plus_o5_plus_24)
+ add %o5, 24, %o5
+ ba,pt %xcc, __restore_asi
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_24)
+ENTRY(memcpy_retl_o2_plus_o5_plus_32)
+ add %o5, 32, %o5
+ ba,pt %xcc, __restore_asi
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_32)
+ENTRY(memcpy_retl_o2_plus_o5_64)
+ add %o5, 32, %o5
+ ba,pt %xcc, __restore_asi
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_64)
+ENTRY(memcpy_retl_o2_plus_g1)
+ ba,pt %xcc, __restore_asi
+ add %o2, %g1, %o0
+ENDPROC(memcpy_retl_o2_plus_g1)
+ENTRY(memcpy_retl_o2_plus_g1_plus_1)
+ add %g1, 1, %g1
+ ba,pt %xcc, __restore_asi
+ add %o2, %g1, %o0
+ENDPROC(memcpy_retl_o2_plus_g1_plus_1)
+ENTRY(memcpy_retl_o2_plus_g1_plus_8)
+ add %g1, 8, %g1
+ ba,pt %xcc, __restore_asi
+ add %o2, %g1, %o0
+ENDPROC(memcpy_retl_o2_plus_g1_plus_8)
+ENTRY(memcpy_retl_o2_plus_o4)
+ ba,pt %xcc, __restore_asi
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4)
+ENTRY(memcpy_retl_o2_plus_o4_plus_8)
+ add %o4, 8, %o4
+ ba,pt %xcc, __restore_asi
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_8)
+ENTRY(memcpy_retl_o2_plus_o4_plus_16)
+ add %o4, 16, %o4
+ ba,pt %xcc, __restore_asi
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_16)
+ENTRY(memcpy_retl_o2_plus_o4_plus_24)
+ add %o4, 24, %o4
+ ba,pt %xcc, __restore_asi
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_24)
+ENTRY(memcpy_retl_o2_plus_o4_plus_32)
+ add %o4, 32, %o4
+ ba,pt %xcc, __restore_asi
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_32)
+ENTRY(memcpy_retl_o2_plus_o4_plus_40)
+ add %o4, 40, %o4
+ ba,pt %xcc, __restore_asi
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_40)
+ENTRY(memcpy_retl_o2_plus_o4_plus_48)
+ add %o4, 48, %o4
+ ba,pt %xcc, __restore_asi
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_48)
+ENTRY(memcpy_retl_o2_plus_o4_plus_56)
+ add %o4, 56, %o4
+ ba,pt %xcc, __restore_asi
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_56)
+ENTRY(memcpy_retl_o2_plus_o4_plus_64)
+ add %o4, 64, %o4
+ ba,pt %xcc, __restore_asi
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_64)
+ENTRY(memcpy_retl_o2_plus_o5_plus_64)
+ add %o5, 64, %o5
+ ba,pt %xcc, __restore_asi
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_64)
+ENTRY(memcpy_retl_o2_plus_o3_fp)
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o3, %o0
+ENDPROC(memcpy_retl_o2_plus_o3_fp)
+ENTRY(memcpy_retl_o2_plus_o3_plus_1_fp)
+ add %o3, 1, %o3
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o3, %o0
+ENDPROC(memcpy_retl_o2_plus_o3_plus_1_fp)
+ENTRY(memcpy_retl_o2_plus_o3_plus_4_fp)
+ add %o3, 4, %o3
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o3, %o0
+ENDPROC(memcpy_retl_o2_plus_o3_plus_4_fp)
+ENTRY(memcpy_retl_o2_plus_o4_fp)
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_fp)
+ENTRY(memcpy_retl_o2_plus_o4_plus_8_fp)
+ add %o4, 8, %o4
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_8_fp)
+ENTRY(memcpy_retl_o2_plus_o4_plus_16_fp)
+ add %o4, 16, %o4
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_16_fp)
+ENTRY(memcpy_retl_o2_plus_o4_plus_24_fp)
+ add %o4, 24, %o4
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_24_fp)
+ENTRY(memcpy_retl_o2_plus_o4_plus_32_fp)
+ add %o4, 32, %o4
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_32_fp)
+ENTRY(memcpy_retl_o2_plus_o4_plus_40_fp)
+ add %o4, 40, %o4
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_40_fp)
+ENTRY(memcpy_retl_o2_plus_o4_plus_48_fp)
+ add %o4, 48, %o4
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_48_fp)
+ENTRY(memcpy_retl_o2_plus_o4_plus_56_fp)
+ add %o4, 56, %o4
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_56_fp)
+ENTRY(memcpy_retl_o2_plus_o4_plus_64_fp)
+ add %o4, 64, %o4
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o4, %o0
+ENDPROC(memcpy_retl_o2_plus_o4_plus_64_fp)
+ENTRY(memcpy_retl_o2_plus_o5_fp)
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_fp)
+ENTRY(memcpy_retl_o2_plus_o5_plus_64_fp)
+ add %o5, 64, %o5
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_64_fp)
+ENTRY(memcpy_retl_o2_plus_o5_plus_56_fp)
+ add %o5, 56, %o5
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_56_fp)
+ENTRY(memcpy_retl_o2_plus_o5_plus_48_fp)
+ add %o5, 48, %o5
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_48_fp)
+ENTRY(memcpy_retl_o2_plus_o5_plus_40_fp)
+ add %o5, 40, %o5
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_40_fp)
+ENTRY(memcpy_retl_o2_plus_o5_plus_32_fp)
+ add %o5, 32, %o5
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_32_fp)
+ENTRY(memcpy_retl_o2_plus_o5_plus_24_fp)
+ add %o5, 24, %o5
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_24_fp)
+ENTRY(memcpy_retl_o2_plus_o5_plus_16_fp)
+ add %o5, 16, %o5
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_16_fp)
+ENTRY(memcpy_retl_o2_plus_o5_plus_8_fp)
+ add %o5, 8, %o5
+ ba,pt %xcc, __restore_asi_fp
+ add %o2, %o5, %o0
+ENDPROC(memcpy_retl_o2_plus_o5_plus_8_fp)
+
+#endif
diff --git a/arch/sparc/lib/NG4memcpy.S b/arch/sparc/lib/NG4memcpy.S
index 78ea962edcbe..b5dacd1d2078 100644
--- a/arch/sparc/lib/NG4memcpy.S
+++ b/arch/sparc/lib/NG4memcpy.S
@@ -94,155 +94,6 @@
.text
#ifndef EX_RETVAL
#define EX_RETVAL(x) x
-__restore_asi_fp:
- VISExitHalf
-__restore_asi:
- retl
- wr %g0, ASI_AIUS, %asi
-
-ENTRY(NG4_retl_o2)
- ba,pt %xcc, __restore_asi
- mov %o2, %o0
-ENDPROC(NG4_retl_o2)
-ENTRY(NG4_retl_o2_plus_1)
- ba,pt %xcc, __restore_asi
- add %o2, 1, %o0
-ENDPROC(NG4_retl_o2_plus_1)
-ENTRY(NG4_retl_o2_plus_4)
- ba,pt %xcc, __restore_asi
- add %o2, 4, %o0
-ENDPROC(NG4_retl_o2_plus_4)
-ENTRY(NG4_retl_o2_plus_o5)
- ba,pt %xcc, __restore_asi
- add %o2, %o5, %o0
-ENDPROC(NG4_retl_o2_plus_o5)
-ENTRY(NG4_retl_o2_plus_o5_plus_4)
- add %o5, 4, %o5
- ba,pt %xcc, __restore_asi
- add %o2, %o5, %o0
-ENDPROC(NG4_retl_o2_plus_o5_plus_4)
-ENTRY(NG4_retl_o2_plus_o5_plus_8)
- add %o5, 8, %o5
- ba,pt %xcc, __restore_asi
- add %o2, %o5, %o0
-ENDPROC(NG4_retl_o2_plus_o5_plus_8)
-ENTRY(NG4_retl_o2_plus_o5_plus_16)
- add %o5, 16, %o5
- ba,pt %xcc, __restore_asi
- add %o2, %o5, %o0
-ENDPROC(NG4_retl_o2_plus_o5_plus_16)
-ENTRY(NG4_retl_o2_plus_o5_plus_24)
- add %o5, 24, %o5
- ba,pt %xcc, __restore_asi
- add %o2, %o5, %o0
-ENDPROC(NG4_retl_o2_plus_o5_plus_24)
-ENTRY(NG4_retl_o2_plus_o5_plus_32)
- add %o5, 32, %o5
- ba,pt %xcc, __restore_asi
- add %o2, %o5, %o0
-ENDPROC(NG4_retl_o2_plus_o5_plus_32)
-ENTRY(NG4_retl_o2_plus_g1)
- ba,pt %xcc, __restore_asi
- add %o2, %g1, %o0
-ENDPROC(NG4_retl_o2_plus_g1)
-ENTRY(NG4_retl_o2_plus_g1_plus_1)
- add %g1, 1, %g1
- ba,pt %xcc, __restore_asi
- add %o2, %g1, %o0
-ENDPROC(NG4_retl_o2_plus_g1_plus_1)
-ENTRY(NG4_retl_o2_plus_g1_plus_8)
- add %g1, 8, %g1
- ba,pt %xcc, __restore_asi
- add %o2, %g1, %o0
-ENDPROC(NG4_retl_o2_plus_g1_plus_8)
-ENTRY(NG4_retl_o2_plus_o4)
- ba,pt %xcc, __restore_asi
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4)
-ENTRY(NG4_retl_o2_plus_o4_plus_8)
- add %o4, 8, %o4
- ba,pt %xcc, __restore_asi
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_8)
-ENTRY(NG4_retl_o2_plus_o4_plus_16)
- add %o4, 16, %o4
- ba,pt %xcc, __restore_asi
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_16)
-ENTRY(NG4_retl_o2_plus_o4_plus_24)
- add %o4, 24, %o4
- ba,pt %xcc, __restore_asi
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_24)
-ENTRY(NG4_retl_o2_plus_o4_plus_32)
- add %o4, 32, %o4
- ba,pt %xcc, __restore_asi
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_32)
-ENTRY(NG4_retl_o2_plus_o4_plus_40)
- add %o4, 40, %o4
- ba,pt %xcc, __restore_asi
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_40)
-ENTRY(NG4_retl_o2_plus_o4_plus_48)
- add %o4, 48, %o4
- ba,pt %xcc, __restore_asi
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_48)
-ENTRY(NG4_retl_o2_plus_o4_plus_56)
- add %o4, 56, %o4
- ba,pt %xcc, __restore_asi
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_56)
-ENTRY(NG4_retl_o2_plus_o4_plus_64)
- add %o4, 64, %o4
- ba,pt %xcc, __restore_asi
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_64)
-ENTRY(NG4_retl_o2_plus_o4_fp)
- ba,pt %xcc, __restore_asi_fp
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_fp)
-ENTRY(NG4_retl_o2_plus_o4_plus_8_fp)
- add %o4, 8, %o4
- ba,pt %xcc, __restore_asi_fp
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_8_fp)
-ENTRY(NG4_retl_o2_plus_o4_plus_16_fp)
- add %o4, 16, %o4
- ba,pt %xcc, __restore_asi_fp
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_16_fp)
-ENTRY(NG4_retl_o2_plus_o4_plus_24_fp)
- add %o4, 24, %o4
- ba,pt %xcc, __restore_asi_fp
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_24_fp)
-ENTRY(NG4_retl_o2_plus_o4_plus_32_fp)
- add %o4, 32, %o4
- ba,pt %xcc, __restore_asi_fp
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_32_fp)
-ENTRY(NG4_retl_o2_plus_o4_plus_40_fp)
- add %o4, 40, %o4
- ba,pt %xcc, __restore_asi_fp
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_40_fp)
-ENTRY(NG4_retl_o2_plus_o4_plus_48_fp)
- add %o4, 48, %o4
- ba,pt %xcc, __restore_asi_fp
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_48_fp)
-ENTRY(NG4_retl_o2_plus_o4_plus_56_fp)
- add %o4, 56, %o4
- ba,pt %xcc, __restore_asi_fp
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_56_fp)
-ENTRY(NG4_retl_o2_plus_o4_plus_64_fp)
- add %o4, 64, %o4
- ba,pt %xcc, __restore_asi_fp
- add %o2, %o4, %o0
-ENDPROC(NG4_retl_o2_plus_o4_plus_64_fp)
#endif
.align 64
@@ -275,12 +126,12 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
sub %o2, %g1, %o2
-1: EX_LD(LOAD(ldub, %o1 + 0x00, %g2), NG4_retl_o2_plus_g1)
+1: EX_LD(LOAD(ldub, %o1 + 0x00, %g2), memcpy_retl_o2_plus_g1)
add %o1, 1, %o1
subcc %g1, 1, %g1
add %o0, 1, %o0
bne,pt %icc, 1b
- EX_ST(STORE(stb, %g2, %o0 - 0x01), NG4_retl_o2_plus_g1_plus_1)
+ EX_ST(STORE(stb, %g2, %o0 - 0x01), memcpy_retl_o2_plus_g1_plus_1)
51: LOAD(prefetch, %o1 + 0x040, #n_reads_strong)
LOAD(prefetch, %o1 + 0x080, #n_reads_strong)
@@ -305,43 +156,43 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
brz,pt %g1, .Llarge_aligned
sub %o2, %g1, %o2
-1: EX_LD(LOAD(ldx, %o1 + 0x00, %g2), NG4_retl_o2_plus_g1)
+1: EX_LD(LOAD(ldx, %o1 + 0x00, %g2), memcpy_retl_o2_plus_g1)
add %o1, 8, %o1
subcc %g1, 8, %g1
add %o0, 8, %o0
bne,pt %icc, 1b
- EX_ST(STORE(stx, %g2, %o0 - 0x08), NG4_retl_o2_plus_g1_plus_8)
+ EX_ST(STORE(stx, %g2, %o0 - 0x08), memcpy_retl_o2_plus_g1_plus_8)
.Llarge_aligned:
/* len >= 0x80 && src 8-byte aligned && dest 8-byte aligned */
andn %o2, 0x3f, %o4
sub %o2, %o4, %o2
-1: EX_LD(LOAD(ldx, %o1 + 0x00, %g1), NG4_retl_o2_plus_o4)
+1: EX_LD(LOAD(ldx, %o1 + 0x00, %g1), memcpy_retl_o2_plus_o4)
add %o1, 0x40, %o1
- EX_LD(LOAD(ldx, %o1 - 0x38, %g2), NG4_retl_o2_plus_o4)
+ EX_LD(LOAD(ldx, %o1 - 0x38, %g2), memcpy_retl_o2_plus_o4)
subcc %o4, 0x40, %o4
- EX_LD(LOAD(ldx, %o1 - 0x30, %g3), NG4_retl_o2_plus_o4_plus_64)
- EX_LD(LOAD(ldx, %o1 - 0x28, GLOBAL_SPARE), NG4_retl_o2_plus_o4_plus_64)
- EX_LD(LOAD(ldx, %o1 - 0x20, %o5), NG4_retl_o2_plus_o4_plus_64)
- EX_ST(STORE_INIT(%g1, %o0), NG4_retl_o2_plus_o4_plus_64)
+ EX_LD(LOAD(ldx, %o1 - 0x30, %g3), memcpy_retl_o2_plus_o4_plus_64)
+ EX_LD(LOAD(ldx, %o1 - 0x28, GLOBAL_SPARE), memcpy_retl_o2_plus_o4_plus_64)
+ EX_LD(LOAD(ldx, %o1 - 0x20, %o5), memcpy_retl_o2_plus_o4_plus_64)
+ EX_ST(STORE_INIT(%g1, %o0), memcpy_retl_o2_plus_o4_plus_64)
add %o0, 0x08, %o0
- EX_ST(STORE_INIT(%g2, %o0), NG4_retl_o2_plus_o4_plus_56)
+ EX_ST(STORE_INIT(%g2, %o0), memcpy_retl_o2_plus_o4_plus_56)
add %o0, 0x08, %o0
- EX_LD(LOAD(ldx, %o1 - 0x18, %g2), NG4_retl_o2_plus_o4_plus_48)
- EX_ST(STORE_INIT(%g3, %o0), NG4_retl_o2_plus_o4_plus_48)
+ EX_LD(LOAD(ldx, %o1 - 0x18, %g2), memcpy_retl_o2_plus_o4_plus_48)
+ EX_ST(STORE_INIT(%g3, %o0), memcpy_retl_o2_plus_o4_plus_48)
add %o0, 0x08, %o0
- EX_LD(LOAD(ldx, %o1 - 0x10, %g3), NG4_retl_o2_plus_o4_plus_40)
- EX_ST(STORE_INIT(GLOBAL_SPARE, %o0), NG4_retl_o2_plus_o4_plus_40)
+ EX_LD(LOAD(ldx, %o1 - 0x10, %g3), memcpy_retl_o2_plus_o4_plus_40)
+ EX_ST(STORE_INIT(GLOBAL_SPARE, %o0), memcpy_retl_o2_plus_o4_plus_40)
add %o0, 0x08, %o0
- EX_LD(LOAD(ldx, %o1 - 0x08, GLOBAL_SPARE), NG4_retl_o2_plus_o4_plus_32)
- EX_ST(STORE_INIT(%o5, %o0), NG4_retl_o2_plus_o4_plus_32)
+ EX_LD(LOAD(ldx, %o1 - 0x08, GLOBAL_SPARE), memcpy_retl_o2_plus_o4_plus_32)
+ EX_ST(STORE_INIT(%o5, %o0), memcpy_retl_o2_plus_o4_plus_32)
add %o0, 0x08, %o0
- EX_ST(STORE_INIT(%g2, %o0), NG4_retl_o2_plus_o4_plus_24)
+ EX_ST(STORE_INIT(%g2, %o0), memcpy_retl_o2_plus_o4_plus_24)
add %o0, 0x08, %o0
- EX_ST(STORE_INIT(%g3, %o0), NG4_retl_o2_plus_o4_plus_16)
+ EX_ST(STORE_INIT(%g3, %o0), memcpy_retl_o2_plus_o4_plus_16)
add %o0, 0x08, %o0
- EX_ST(STORE_INIT(GLOBAL_SPARE, %o0), NG4_retl_o2_plus_o4_plus_8)
+ EX_ST(STORE_INIT(GLOBAL_SPARE, %o0), memcpy_retl_o2_plus_o4_plus_8)
add %o0, 0x08, %o0
bne,pt %icc, 1b
LOAD(prefetch, %o1 + 0x200, #n_reads_strong)
@@ -367,17 +218,17 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
sub %o2, %o4, %o2
alignaddr %o1, %g0, %g1
add %o1, %o4, %o1
- EX_LD_FP(LOAD(ldd, %g1 + 0x00, %f0), NG4_retl_o2_plus_o4)
-1: EX_LD_FP(LOAD(ldd, %g1 + 0x08, %f2), NG4_retl_o2_plus_o4)
+ EX_LD_FP(LOAD(ldd, %g1 + 0x00, %f0), memcpy_retl_o2_plus_o4)
+1: EX_LD_FP(LOAD(ldd, %g1 + 0x08, %f2), memcpy_retl_o2_plus_o4)
subcc %o4, 0x40, %o4
- EX_LD_FP(LOAD(ldd, %g1 + 0x10, %f4), NG4_retl_o2_plus_o4_plus_64)
- EX_LD_FP(LOAD(ldd, %g1 + 0x18, %f6), NG4_retl_o2_plus_o4_plus_64)
- EX_LD_FP(LOAD(ldd, %g1 + 0x20, %f8), NG4_retl_o2_plus_o4_plus_64)
- EX_LD_FP(LOAD(ldd, %g1 + 0x28, %f10), NG4_retl_o2_plus_o4_plus_64)
- EX_LD_FP(LOAD(ldd, %g1 + 0x30, %f12), NG4_retl_o2_plus_o4_plus_64)
- EX_LD_FP(LOAD(ldd, %g1 + 0x38, %f14), NG4_retl_o2_plus_o4_plus_64)
+ EX_LD_FP(LOAD(ldd, %g1 + 0x10, %f4), memcpy_retl_o2_plus_o4_plus_64)
+ EX_LD_FP(LOAD(ldd, %g1 + 0x18, %f6), memcpy_retl_o2_plus_o4_plus_64)
+ EX_LD_FP(LOAD(ldd, %g1 + 0x20, %f8), memcpy_retl_o2_plus_o4_plus_64)
+ EX_LD_FP(LOAD(ldd, %g1 + 0x28, %f10), memcpy_retl_o2_plus_o4_plus_64)
+ EX_LD_FP(LOAD(ldd, %g1 + 0x30, %f12), memcpy_retl_o2_plus_o4_plus_64)
+ EX_LD_FP(LOAD(ldd, %g1 + 0x38, %f14), memcpy_retl_o2_plus_o4_plus_64)
faligndata %f0, %f2, %f16
- EX_LD_FP(LOAD(ldd, %g1 + 0x40, %f0), NG4_retl_o2_plus_o4_plus_64)
+ EX_LD_FP(LOAD(ldd, %g1 + 0x40, %f0), memcpy_retl_o2_plus_o4_plus_64)
faligndata %f2, %f4, %f18
add %g1, 0x40, %g1
faligndata %f4, %f6, %f20
@@ -386,14 +237,14 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
faligndata %f10, %f12, %f26
faligndata %f12, %f14, %f28
faligndata %f14, %f0, %f30
- EX_ST_FP(STORE(std, %f16, %o0 + 0x00), NG4_retl_o2_plus_o4_plus_64)
- EX_ST_FP(STORE(std, %f18, %o0 + 0x08), NG4_retl_o2_plus_o4_plus_56)
- EX_ST_FP(STORE(std, %f20, %o0 + 0x10), NG4_retl_o2_plus_o4_plus_48)
- EX_ST_FP(STORE(std, %f22, %o0 + 0x18), NG4_retl_o2_plus_o4_plus_40)
- EX_ST_FP(STORE(std, %f24, %o0 + 0x20), NG4_retl_o2_plus_o4_plus_32)
- EX_ST_FP(STORE(std, %f26, %o0 + 0x28), NG4_retl_o2_plus_o4_plus_24)
- EX_ST_FP(STORE(std, %f28, %o0 + 0x30), NG4_retl_o2_plus_o4_plus_16)
- EX_ST_FP(STORE(std, %f30, %o0 + 0x38), NG4_retl_o2_plus_o4_plus_8)
+ EX_ST_FP(STORE(std, %f16, %o0 + 0x00), memcpy_retl_o2_plus_o4_plus_64)
+ EX_ST_FP(STORE(std, %f18, %o0 + 0x08), memcpy_retl_o2_plus_o4_plus_56)
+ EX_ST_FP(STORE(std, %f20, %o0 + 0x10), memcpy_retl_o2_plus_o4_plus_48)
+ EX_ST_FP(STORE(std, %f22, %o0 + 0x18), memcpy_retl_o2_plus_o4_plus_40)
+ EX_ST_FP(STORE(std, %f24, %o0 + 0x20), memcpy_retl_o2_plus_o4_plus_32)
+ EX_ST_FP(STORE(std, %f26, %o0 + 0x28), memcpy_retl_o2_plus_o4_plus_24)
+ EX_ST_FP(STORE(std, %f28, %o0 + 0x30), memcpy_retl_o2_plus_o4_plus_16)
+ EX_ST_FP(STORE(std, %f30, %o0 + 0x38), memcpy_retl_o2_plus_o4_plus_8)
add %o0, 0x40, %o0
bne,pt %icc, 1b
LOAD(prefetch, %g1 + 0x200, #n_reads_strong)
@@ -421,38 +272,38 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
andncc %o2, 0x20 - 1, %o5
be,pn %icc, 2f
sub %o2, %o5, %o2
-1: EX_LD(LOAD(ldx, %o1 + 0x00, %g1), NG4_retl_o2_plus_o5)
- EX_LD(LOAD(ldx, %o1 + 0x08, %g2), NG4_retl_o2_plus_o5)
- EX_LD(LOAD(ldx, %o1 + 0x10, GLOBAL_SPARE), NG4_retl_o2_plus_o5)
- EX_LD(LOAD(ldx, %o1 + 0x18, %o4), NG4_retl_o2_plus_o5)
+1: EX_LD(LOAD(ldx, %o1 + 0x00, %g1), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1 + 0x08, %g2), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1 + 0x10, GLOBAL_SPARE), memcpy_retl_o2_plus_o5)
+ EX_LD(LOAD(ldx, %o1 + 0x18, %o4), memcpy_retl_o2_plus_o5)
add %o1, 0x20, %o1
subcc %o5, 0x20, %o5
- EX_ST(STORE(stx, %g1, %o0 + 0x00), NG4_retl_o2_plus_o5_plus_32)
- EX_ST(STORE(stx, %g2, %o0 + 0x08), NG4_retl_o2_plus_o5_plus_24)
- EX_ST(STORE(stx, GLOBAL_SPARE, %o0 + 0x10), NG4_retl_o2_plus_o5_plus_24)
- EX_ST(STORE(stx, %o4, %o0 + 0x18), NG4_retl_o2_plus_o5_plus_8)
+ EX_ST(STORE(stx, %g1, %o0 + 0x00), memcpy_retl_o2_plus_o5_plus_32)
+ EX_ST(STORE(stx, %g2, %o0 + 0x08), memcpy_retl_o2_plus_o5_plus_24)
+ EX_ST(STORE(stx, GLOBAL_SPARE, %o0 + 0x10), memcpy_retl_o2_plus_o5_plus_24)
+ EX_ST(STORE(stx, %o4, %o0 + 0x18), memcpy_retl_o2_plus_o5_plus_8)
bne,pt %icc, 1b
add %o0, 0x20, %o0
2: andcc %o2, 0x18, %o5
be,pt %icc, 3f
sub %o2, %o5, %o2
-1: EX_LD(LOAD(ldx, %o1 + 0x00, %g1), NG4_retl_o2_plus_o5)
+1: EX_LD(LOAD(ldx, %o1 + 0x00, %g1), memcpy_retl_o2_plus_o5)
add %o1, 0x08, %o1
add %o0, 0x08, %o0
subcc %o5, 0x08, %o5
bne,pt %icc, 1b
- EX_ST(STORE(stx, %g1, %o0 - 0x08), NG4_retl_o2_plus_o5_plus_8)
+ EX_ST(STORE(stx, %g1, %o0 - 0x08), memcpy_retl_o2_plus_o5_plus_8)
3: brz,pt %o2, .Lexit
cmp %o2, 0x04
bl,pn %icc, .Ltiny
nop
- EX_LD(LOAD(lduw, %o1 + 0x00, %g1), NG4_retl_o2)
+ EX_LD(LOAD(lduw, %o1 + 0x00, %g1), memcpy_retl_o2)
add %o1, 0x04, %o1
add %o0, 0x04, %o0
subcc %o2, 0x04, %o2
bne,pn %icc, .Ltiny
- EX_ST(STORE(stw, %g1, %o0 - 0x04), NG4_retl_o2_plus_4)
+ EX_ST(STORE(stw, %g1, %o0 - 0x04), memcpy_retl_o2_plus_4)
ba,a,pt %icc, .Lexit
.Lmedium_unaligned:
/* First get dest 8 byte aligned. */
@@ -461,12 +312,12 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
brz,pt %g1, 2f
sub %o2, %g1, %o2
-1: EX_LD(LOAD(ldub, %o1 + 0x00, %g2), NG4_retl_o2_plus_g1)
+1: EX_LD(LOAD(ldub, %o1 + 0x00, %g2), memcpy_retl_o2_plus_g1)
add %o1, 1, %o1
subcc %g1, 1, %g1
add %o0, 1, %o0
bne,pt %icc, 1b
- EX_ST(STORE(stb, %g2, %o0 - 0x01), NG4_retl_o2_plus_g1_plus_1)
+ EX_ST(STORE(stb, %g2, %o0 - 0x01), memcpy_retl_o2_plus_g1_plus_1)
2:
and %o1, 0x7, %g1
brz,pn %g1, .Lmedium_noprefetch
@@ -474,16 +325,16 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
mov 64, %g2
sub %g2, %g1, %g2
andn %o1, 0x7, %o1
- EX_LD(LOAD(ldx, %o1 + 0x00, %o4), NG4_retl_o2)
+ EX_LD(LOAD(ldx, %o1 + 0x00, %o4), memcpy_retl_o2)
sllx %o4, %g1, %o4
andn %o2, 0x08 - 1, %o5
sub %o2, %o5, %o2
-1: EX_LD(LOAD(ldx, %o1 + 0x08, %g3), NG4_retl_o2_plus_o5)
+1: EX_LD(LOAD(ldx, %o1 + 0x08, %g3), memcpy_retl_o2_plus_o5)
add %o1, 0x08, %o1
subcc %o5, 0x08, %o5
srlx %g3, %g2, GLOBAL_SPARE
or GLOBAL_SPARE, %o4, GLOBAL_SPARE
- EX_ST(STORE(stx, GLOBAL_SPARE, %o0 + 0x00), NG4_retl_o2_plus_o5_plus_8)
+ EX_ST(STORE(stx, GLOBAL_SPARE, %o0 + 0x00), memcpy_retl_o2_plus_o5_plus_8)
add %o0, 0x08, %o0
bne,pt %icc, 1b
sllx %g3, %g1, %o4
@@ -494,17 +345,17 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
ba,pt %icc, .Lsmall_unaligned
.Ltiny:
- EX_LD(LOAD(ldub, %o1 + 0x00, %g1), NG4_retl_o2)
+ EX_LD(LOAD(ldub, %o1 + 0x00, %g1), memcpy_retl_o2)
subcc %o2, 1, %o2
be,pn %icc, .Lexit
- EX_ST(STORE(stb, %g1, %o0 + 0x00), NG4_retl_o2_plus_1)
- EX_LD(LOAD(ldub, %o1 + 0x01, %g1), NG4_retl_o2)
+ EX_ST(STORE(stb, %g1, %o0 + 0x00), memcpy_retl_o2_plus_1)
+ EX_LD(LOAD(ldub, %o1 + 0x01, %g1), memcpy_retl_o2)
subcc %o2, 1, %o2
be,pn %icc, .Lexit
- EX_ST(STORE(stb, %g1, %o0 + 0x01), NG4_retl_o2_plus_1)
- EX_LD(LOAD(ldub, %o1 + 0x02, %g1), NG4_retl_o2)
+ EX_ST(STORE(stb, %g1, %o0 + 0x01), memcpy_retl_o2_plus_1)
+ EX_LD(LOAD(ldub, %o1 + 0x02, %g1), memcpy_retl_o2)
ba,pt %icc, .Lexit
- EX_ST(STORE(stb, %g1, %o0 + 0x02), NG4_retl_o2)
+ EX_ST(STORE(stb, %g1, %o0 + 0x02), memcpy_retl_o2)
.Lsmall:
andcc %g2, 0x3, %g0
@@ -512,23 +363,23 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
andn %o2, 0x4 - 1, %o5
sub %o2, %o5, %o2
1:
- EX_LD(LOAD(lduw, %o1 + 0x00, %g1), NG4_retl_o2_plus_o5)
+ EX_LD(LOAD(lduw, %o1 + 0x00, %g1), memcpy_retl_o2_plus_o5)
add %o1, 0x04, %o1
subcc %o5, 0x04, %o5
add %o0, 0x04, %o0
bne,pt %icc, 1b
- EX_ST(STORE(stw, %g1, %o0 - 0x04), NG4_retl_o2_plus_o5_plus_4)
+ EX_ST(STORE(stw, %g1, %o0 - 0x04), memcpy_retl_o2_plus_o5_plus_4)
brz,pt %o2, .Lexit
nop
ba,a,pt %icc, .Ltiny
.Lsmall_unaligned:
-1: EX_LD(LOAD(ldub, %o1 + 0x00, %g1), NG4_retl_o2)
+1: EX_LD(LOAD(ldub, %o1 + 0x00, %g1), memcpy_retl_o2)
add %o1, 1, %o1
add %o0, 1, %o0
subcc %o2, 1, %o2
bne,pt %icc, 1b
- EX_ST(STORE(stb, %g1, %o0 - 0x01), NG4_retl_o2_plus_1)
+ EX_ST(STORE(stb, %g1, %o0 - 0x01), memcpy_retl_o2_plus_1)
ba,a,pt %icc, .Lexit
nop
.size FUNC_NAME, .-FUNC_NAME
diff --git a/arch/sparc/lib/U3memcpy.S b/arch/sparc/lib/U3memcpy.S
index 54f98706b03b..f9b42b3c63b0 100644
--- a/arch/sparc/lib/U3memcpy.S
+++ b/arch/sparc/lib/U3memcpy.S
@@ -145,13 +145,13 @@ ENDPROC(U3_retl_o2_plus_GS_plus_0x08)
ENTRY(U3_retl_o2_and_7_plus_GS)
and %o2, 7, %o2
retl
- add %o2, GLOBAL_SPARE, %o2
+ add %o2, GLOBAL_SPARE, %o0
ENDPROC(U3_retl_o2_and_7_plus_GS)
ENTRY(U3_retl_o2_and_7_plus_GS_plus_8)
add GLOBAL_SPARE, 8, GLOBAL_SPARE
and %o2, 7, %o2
retl
- add %o2, GLOBAL_SPARE, %o2
+ add %o2, GLOBAL_SPARE, %o0
ENDPROC(U3_retl_o2_and_7_plus_GS_plus_8)
#endif
@@ -168,18 +168,25 @@ ENDPROC(U3_retl_o2_and_7_plus_GS_plus_8)
FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
srlx %o2, 31, %g2
cmp %g2, 0
+
+ /* software trap 5 "Range Check" if dst >= 0x80000000 */
tne %xcc, 5
PREAMBLE
mov %o0, %o4
+
+ /* if len == 0 */
cmp %o2, 0
- be,pn %XCC, 85f
+ be,pn %XCC, end_return
or %o0, %o1, %o3
+
+ /* if len < 16 */
cmp %o2, 16
- blu,a,pn %XCC, 80f
+ blu,a,pn %XCC, less_than_16
or %o3, %o2, %o3
+ /* if len < 192 */
cmp %o2, (3 * 64)
- blu,pt %XCC, 70f
+ blu,pt %XCC, less_than_192
andcc %o3, 0x7, %g0
/* Clobbers o5/g1/g2/g3/g7/icc/xcc. We must preserve
@@ -362,7 +369,7 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
cmp %o2, 0
add %o1, %g1, %o1
VISExitHalf
- be,pn %XCC, 85f
+ be,pn %XCC, end_return
sub %o0, %o1, %o3
andcc %g1, 0x7, %g0
@@ -392,14 +399,15 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
sub %o2, 2, %o2
1: andcc %o2, 0x1, %g0
- be,pt %icc, 85f
+ be,pt %icc, end_return
nop
EX_LD(LOAD(ldub, %o1, %o5), U3_retl_o2)
- ba,pt %xcc, 85f
+ ba,pt %xcc, end_return
EX_ST(STORE(stb, %o5, %o1 + %o3), U3_retl_o2)
.align 64
-70: /* 16 < len <= 64 */
+ /* 16 <= len < 192 */
+less_than_192:
bne,pn %XCC, 75f
sub %o0, %o1, %o3
@@ -429,7 +437,7 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
EX_ST(STORE(stw, %o5, %o1 + %o3), U3_retl_o2_plus_4)
add %o1, 0x4, %o1
1: cmp %o2, 0
- be,pt %XCC, 85f
+ be,pt %XCC, end_return
nop
ba,pt %xcc, 90f
nop
@@ -475,13 +483,14 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
srl %g1, 3, %g1
andcc %o2, 0x7, %o2
- be,pn %icc, 85f
+ be,pn %icc, end_return
add %o1, %g1, %o1
ba,pt %xcc, 90f
sub %o0, %o1, %o3
.align 64
-80: /* 0 < len <= 16 */
+ /* 0 < len < 16 */
+less_than_16:
andcc %o3, 0x3, %g0
bne,pn %XCC, 90f
sub %o0, %o1, %o3
@@ -493,7 +502,8 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
bgu,pt %XCC, 1b
add %o1, 4, %o1
-85: retl
+end_return:
+ retl
mov EX_RETVAL(%o4), %o0
.align 32
diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S
index 1c6a1bde5138..ce17c3094ba6 100644
--- a/arch/sparc/lib/atomic_64.S
+++ b/arch/sparc/lib/atomic_64.S
@@ -62,19 +62,23 @@ ENTRY(atomic_fetch_##op) /* %o0 = increment, %o1 = atomic_ptr */ \
ENDPROC(atomic_fetch_##op); \
EXPORT_SYMBOL(atomic_fetch_##op);
-#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op) ATOMIC_FETCH_OP(op)
+ATOMIC_OP(add)
+ATOMIC_OP_RETURN(add)
+ATOMIC_FETCH_OP(add)
-ATOMIC_OPS(add)
-ATOMIC_OPS(sub)
+ATOMIC_OP(sub)
+ATOMIC_OP_RETURN(sub)
+ATOMIC_FETCH_OP(sub)
-#undef ATOMIC_OPS
-#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_FETCH_OP(op)
+ATOMIC_OP(and)
+ATOMIC_FETCH_OP(and)
-ATOMIC_OPS(and)
-ATOMIC_OPS(or)
-ATOMIC_OPS(xor)
+ATOMIC_OP(or)
+ATOMIC_FETCH_OP(or)
+
+ATOMIC_OP(xor)
+ATOMIC_FETCH_OP(xor)
-#undef ATOMIC_OPS
#undef ATOMIC_FETCH_OP
#undef ATOMIC_OP_RETURN
#undef ATOMIC_OP
@@ -124,19 +128,23 @@ ENTRY(atomic64_fetch_##op) /* %o0 = increment, %o1 = atomic_ptr */ \
ENDPROC(atomic64_fetch_##op); \
EXPORT_SYMBOL(atomic64_fetch_##op);
-#define ATOMIC64_OPS(op) ATOMIC64_OP(op) ATOMIC64_OP_RETURN(op) ATOMIC64_FETCH_OP(op)
+ATOMIC64_OP(add)
+ATOMIC64_OP_RETURN(add)
+ATOMIC64_FETCH_OP(add)
+
+ATOMIC64_OP(sub)
+ATOMIC64_OP_RETURN(sub)
+ATOMIC64_FETCH_OP(sub)
-ATOMIC64_OPS(add)
-ATOMIC64_OPS(sub)
+ATOMIC64_OP(and)
+ATOMIC64_FETCH_OP(and)
-#undef ATOMIC64_OPS
-#define ATOMIC64_OPS(op) ATOMIC64_OP(op) ATOMIC64_FETCH_OP(op)
+ATOMIC64_OP(or)
+ATOMIC64_FETCH_OP(or)
-ATOMIC64_OPS(and)
-ATOMIC64_OPS(or)
-ATOMIC64_OPS(xor)
+ATOMIC64_OP(xor)
+ATOMIC64_FETCH_OP(xor)
-#undef ATOMIC64_OPS
#undef ATOMIC64_FETCH_OP
#undef ATOMIC64_OP_RETURN
#undef ATOMIC64_OP
diff --git a/arch/sparc/lib/checksum_64.S b/arch/sparc/lib/checksum_64.S
index f6732174fe6b..6cfa521f444d 100644
--- a/arch/sparc/lib/checksum_64.S
+++ b/arch/sparc/lib/checksum_64.S
@@ -38,6 +38,7 @@ csum_partial_fix_alignment:
.align 32
.globl csum_partial
+ .type csum_partial,#function
EXPORT_SYMBOL(csum_partial)
csum_partial: /* %o0=buff, %o1=len, %o2=sum */
prefetch [%o0 + 0x000], #n_reads
diff --git a/arch/sparc/lib/csum_copy.S b/arch/sparc/lib/csum_copy.S
index 0ecbafc30fd0..b1051e77c49a 100644
--- a/arch/sparc/lib/csum_copy.S
+++ b/arch/sparc/lib/csum_copy.S
@@ -65,6 +65,7 @@
add %o5, %o4, %o4
.globl FUNC_NAME
+ .type FUNC_NAME,#function
EXPORT_SYMBOL(FUNC_NAME)
FUNC_NAME: /* %o0=src, %o1=dst, %o2=len, %o3=sum */
LOAD(prefetch, %o0 + 0x000, #n_reads)
diff --git a/arch/sparc/lib/hweight.S b/arch/sparc/lib/hweight.S
index f9985f129fb6..d21cf20e5c1e 100644
--- a/arch/sparc/lib/hweight.S
+++ b/arch/sparc/lib/hweight.S
@@ -4,9 +4,9 @@
.text
.align 32
ENTRY(__arch_hweight8)
- ba,pt %xcc, __sw_hweight8
+ sethi %hi(__sw_hweight8), %g1
+ jmpl %g1 + %lo(__sw_hweight8), %g0
nop
- nop
ENDPROC(__arch_hweight8)
EXPORT_SYMBOL(__arch_hweight8)
.section .popc_3insn_patch, "ax"
@@ -17,9 +17,9 @@ EXPORT_SYMBOL(__arch_hweight8)
.previous
ENTRY(__arch_hweight16)
- ba,pt %xcc, __sw_hweight16
+ sethi %hi(__sw_hweight16), %g1
+ jmpl %g1 + %lo(__sw_hweight16), %g0
nop
- nop
ENDPROC(__arch_hweight16)
EXPORT_SYMBOL(__arch_hweight16)
.section .popc_3insn_patch, "ax"
@@ -30,9 +30,9 @@ EXPORT_SYMBOL(__arch_hweight16)
.previous
ENTRY(__arch_hweight32)
- ba,pt %xcc, __sw_hweight32
+ sethi %hi(__sw_hweight32), %g1
+ jmpl %g1 + %lo(__sw_hweight32), %g0
nop
- nop
ENDPROC(__arch_hweight32)
EXPORT_SYMBOL(__arch_hweight32)
.section .popc_3insn_patch, "ax"
@@ -43,9 +43,9 @@ EXPORT_SYMBOL(__arch_hweight32)
.previous
ENTRY(__arch_hweight64)
- ba,pt %xcc, __sw_hweight64
+ sethi %hi(__sw_hweight16), %g1
+ jmpl %g1 + %lo(__sw_hweight16), %g0
nop
- nop
ENDPROC(__arch_hweight64)
EXPORT_SYMBOL(__arch_hweight64)
.section .popc_3insn_patch, "ax"
diff --git a/arch/sparc/lib/memscan_64.S b/arch/sparc/lib/memscan_64.S
index daa96f4b03e6..5efee1f4be36 100644
--- a/arch/sparc/lib/memscan_64.S
+++ b/arch/sparc/lib/memscan_64.S
@@ -14,6 +14,8 @@
.text
.align 32
.globl __memscan_zero, __memscan_generic
+ .type __memscan_zero,#function
+ .type __memscan_generic,#function
.globl memscan
EXPORT_SYMBOL(__memscan_zero)
EXPORT_SYMBOL(__memscan_generic)
diff --git a/arch/sparc/lib/memset.S b/arch/sparc/lib/memset.S
index bb539b42b088..e23338dbfc43 100644
--- a/arch/sparc/lib/memset.S
+++ b/arch/sparc/lib/memset.S
@@ -63,6 +63,7 @@
__bzero_begin:
.globl __bzero
+ .type __bzero,#function
.globl memset
EXPORT_SYMBOL(__bzero)
EXPORT_SYMBOL(memset)
diff --git a/arch/sparc/lib/multi3.S b/arch/sparc/lib/multi3.S
index d6b6c97fe3c7..703127aaf4a5 100644
--- a/arch/sparc/lib/multi3.S
+++ b/arch/sparc/lib/multi3.S
@@ -5,26 +5,26 @@
.align 4
ENTRY(__multi3) /* %o0 = u, %o1 = v */
mov %o1, %g1
- srl %o3, 0, %g4
- mulx %g4, %g1, %o1
+ srl %o3, 0, %o4
+ mulx %o4, %g1, %o1
srlx %g1, 0x20, %g3
- mulx %g3, %g4, %g5
- sllx %g5, 0x20, %o5
- srl %g1, 0, %g4
+ mulx %g3, %o4, %g7
+ sllx %g7, 0x20, %o5
+ srl %g1, 0, %o4
sub %o1, %o5, %o5
srlx %o5, 0x20, %o5
- addcc %g5, %o5, %g5
+ addcc %g7, %o5, %g7
srlx %o3, 0x20, %o5
- mulx %g4, %o5, %g4
+ mulx %o4, %o5, %o4
mulx %g3, %o5, %o5
sethi %hi(0x80000000), %g3
- addcc %g5, %g4, %g5
- srlx %g5, 0x20, %g5
+ addcc %g7, %o4, %g7
+ srlx %g7, 0x20, %g7
add %g3, %g3, %g3
movcc %xcc, %g0, %g3
- addcc %o5, %g5, %o5
- sllx %g4, 0x20, %g4
- add %o1, %g4, %o1
+ addcc %o5, %g7, %o5
+ sllx %o4, 0x20, %o4
+ add %o1, %o4, %o1
add %o5, %g3, %g2
mulx %g1, %o2, %g1
add %g1, %g2, %g1
diff --git a/arch/sparc/mm/extable.c b/arch/sparc/mm/extable.c
index db214e9931d9..2422511dc8c5 100644
--- a/arch/sparc/mm/extable.c
+++ b/arch/sparc/mm/extable.c
@@ -13,11 +13,11 @@ void sort_extable(struct exception_table_entry *start,
/* Caller knows they are in a range if ret->fixup == 0 */
const struct exception_table_entry *
-search_extable(const struct exception_table_entry *start,
- const struct exception_table_entry *last,
+search_extable(const struct exception_table_entry *base,
+ const size_t num,
unsigned long value)
{
- const struct exception_table_entry *walk;
+ int i;
/* Single insn entries are encoded as:
* word 1: insn address
@@ -37,30 +37,30 @@ search_extable(const struct exception_table_entry *start,
*/
/* 1. Try to find an exact match. */
- for (walk = start; walk <= last; walk++) {
- if (walk->fixup == 0) {
+ for (i = 0; i < num; i++) {
+ if (base[i].fixup == 0) {
/* A range entry, skip both parts. */
- walk++;
+ i++;
continue;
}
/* A deleted entry; see trim_init_extable */
- if (walk->fixup == -1)
+ if (base[i].fixup == -1)
continue;
- if (walk->insn == value)
- return walk;
+ if (base[i].insn == value)
+ return &base[i];
}
/* 2. Try to find a range match. */
- for (walk = start; walk <= (last - 1); walk++) {
- if (walk->fixup)
+ for (i = 0; i < (num - 1); i++) {
+ if (base[i].fixup)
continue;
- if (walk[0].insn <= value && walk[1].insn > value)
- return walk;
+ if (base[i].insn <= value && base[i + 1].insn > value)
+ return &base[i];
- walk++;
+ i++;
}
return NULL;
diff --git a/arch/sparc/mm/gup.c b/arch/sparc/mm/gup.c
index cd0e32bbcb1d..d809099ffd47 100644
--- a/arch/sparc/mm/gup.c
+++ b/arch/sparc/mm/gup.c
@@ -78,8 +78,8 @@ static int gup_huge_pmd(pmd_t *pmdp, pmd_t pmd, unsigned long addr,
return 0;
refs = 0;
- head = pmd_page(pmd);
- page = head + ((addr & ~PMD_MASK) >> PAGE_SHIFT);
+ page = pmd_page(pmd) + ((addr & ~PMD_MASK) >> PAGE_SHIFT);
+ head = compound_head(page);
do {
VM_BUG_ON(compound_head(page) != head);
pages[*nr] = page;
@@ -103,6 +103,45 @@ static int gup_huge_pmd(pmd_t *pmdp, pmd_t pmd, unsigned long addr,
return 1;
}
+static int gup_huge_pud(pud_t *pudp, pud_t pud, unsigned long addr,
+ unsigned long end, int write, struct page **pages,
+ int *nr)
+{
+ struct page *head, *page;
+ int refs;
+
+ if (!(pud_val(pud) & _PAGE_VALID))
+ return 0;
+
+ if (write && !pud_write(pud))
+ return 0;
+
+ refs = 0;
+ page = pud_page(pud) + ((addr & ~PUD_MASK) >> PAGE_SHIFT);
+ head = compound_head(page);
+ do {
+ VM_BUG_ON(compound_head(page) != head);
+ pages[*nr] = page;
+ (*nr)++;
+ page++;
+ refs++;
+ } while (addr += PAGE_SIZE, addr != end);
+
+ if (!page_cache_add_speculative(head, refs)) {
+ *nr -= refs;
+ return 0;
+ }
+
+ if (unlikely(pud_val(pud) != pud_val(*pudp))) {
+ *nr -= refs;
+ while (refs--)
+ put_page(head);
+ return 0;
+ }
+
+ return 1;
+}
+
static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end,
int write, struct page **pages, int *nr)
{
@@ -141,7 +180,11 @@ static int gup_pud_range(pgd_t pgd, unsigned long addr, unsigned long end,
next = pud_addr_end(addr, end);
if (pud_none(pud))
return 0;
- if (!gup_pmd_range(pud, addr, next, write, pages, nr))
+ if (unlikely(pud_large(pud))) {
+ if (!gup_huge_pud(pudp, pud, addr, next,
+ write, pages, nr))
+ return 0;
+ } else if (!gup_pmd_range(pud, addr, next, write, pages, nr))
return 0;
} while (pudp++, addr = next, addr != end);
diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c
index 88855e383b34..bcd8cdbc377f 100644
--- a/arch/sparc/mm/hugetlbpage.c
+++ b/arch/sparc/mm/hugetlbpage.c
@@ -143,6 +143,10 @@ static pte_t sun4v_hugepage_shift_to_tte(pte_t entry, unsigned int shift)
pte_val(entry) = pte_val(entry) & ~_PAGE_SZALL_4V;
switch (shift) {
+ case HPAGE_16GB_SHIFT:
+ hugepage_size = _PAGE_SZ16GB_4V;
+ pte_val(entry) |= _PAGE_PUD_HUGE;
+ break;
case HPAGE_2GB_SHIFT:
hugepage_size = _PAGE_SZ2GB_4V;
pte_val(entry) |= _PAGE_PMD_HUGE;
@@ -187,6 +191,9 @@ static unsigned int sun4v_huge_tte_to_shift(pte_t entry)
unsigned int shift;
switch (tte_szbits) {
+ case _PAGE_SZ16GB_4V:
+ shift = HPAGE_16GB_SHIFT;
+ break;
case _PAGE_SZ2GB_4V:
shift = HPAGE_2GB_SHIFT;
break;
@@ -259,57 +266,61 @@ pte_t *huge_pte_alloc(struct mm_struct *mm,
pgd_t *pgd;
pud_t *pud;
pmd_t *pmd;
- pte_t *pte = NULL;
pgd = pgd_offset(mm, addr);
pud = pud_alloc(mm, pgd, addr);
- if (pud) {
- pmd = pmd_alloc(mm, pud, addr);
- if (!pmd)
- return NULL;
-
- if (sz >= PMD_SIZE)
- pte = (pte_t *)pmd;
- else
- pte = pte_alloc_map(mm, pmd, addr);
- }
-
- return pte;
+ if (!pud)
+ return NULL;
+ if (sz >= PUD_SIZE)
+ return (pte_t *)pud;
+ pmd = pmd_alloc(mm, pud, addr);
+ if (!pmd)
+ return NULL;
+ if (sz >= PMD_SIZE)
+ return (pte_t *)pmd;
+ return pte_alloc_map(mm, pmd, addr);
}
-pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
+pte_t *huge_pte_offset(struct mm_struct *mm,
+ unsigned long addr, unsigned long sz)
{
pgd_t *pgd;
pud_t *pud;
pmd_t *pmd;
- pte_t *pte = NULL;
pgd = pgd_offset(mm, addr);
- if (!pgd_none(*pgd)) {
- pud = pud_offset(pgd, addr);
- if (!pud_none(*pud)) {
- pmd = pmd_offset(pud, addr);
- if (!pmd_none(*pmd)) {
- if (is_hugetlb_pmd(*pmd))
- pte = (pte_t *)pmd;
- else
- pte = pte_offset_map(pmd, addr);
- }
- }
- }
-
- return pte;
+ if (pgd_none(*pgd))
+ return NULL;
+ pud = pud_offset(pgd, addr);
+ if (pud_none(*pud))
+ return NULL;
+ if (is_hugetlb_pud(*pud))
+ return (pte_t *)pud;
+ pmd = pmd_offset(pud, addr);
+ if (pmd_none(*pmd))
+ return NULL;
+ if (is_hugetlb_pmd(*pmd))
+ return (pte_t *)pmd;
+ return pte_offset_map(pmd, addr);
}
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t entry)
{
- unsigned int i, nptes, orig_shift, shift;
- unsigned long size;
+ unsigned int nptes, orig_shift, shift;
+ unsigned long i, size;
pte_t orig;
size = huge_tte_to_size(entry);
- shift = size >= HPAGE_SIZE ? PMD_SHIFT : PAGE_SHIFT;
+
+ shift = PAGE_SHIFT;
+ if (size >= PUD_SIZE)
+ shift = PUD_SHIFT;
+ else if (size >= PMD_SIZE)
+ shift = PMD_SHIFT;
+ else
+ shift = PAGE_SHIFT;
+
nptes = size >> shift;
if (!pte_present(*ptep) && pte_present(entry))
@@ -332,19 +343,23 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep)
{
- unsigned int i, nptes, hugepage_shift;
+ unsigned int i, nptes, orig_shift, shift;
unsigned long size;
pte_t entry;
entry = *ptep;
size = huge_tte_to_size(entry);
- if (size >= HPAGE_SIZE)
- nptes = size >> PMD_SHIFT;
+
+ shift = PAGE_SHIFT;
+ if (size >= PUD_SIZE)
+ shift = PUD_SHIFT;
+ else if (size >= PMD_SIZE)
+ shift = PMD_SHIFT;
else
- nptes = size >> PAGE_SHIFT;
+ shift = PAGE_SHIFT;
- hugepage_shift = pte_none(entry) ? PAGE_SHIFT :
- huge_tte_to_shift(entry);
+ nptes = size >> shift;
+ orig_shift = pte_none(entry) ? PAGE_SHIFT : huge_tte_to_shift(entry);
if (pte_present(entry))
mm->context.hugetlb_pte_count -= nptes;
@@ -353,11 +368,11 @@ pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
for (i = 0; i < nptes; i++)
ptep[i] = __pte(0UL);
- maybe_tlb_batch_add(mm, addr, ptep, entry, 0, hugepage_shift);
+ maybe_tlb_batch_add(mm, addr, ptep, entry, 0, orig_shift);
/* An HPAGE_SIZE'ed page is composed of two REAL_HPAGE_SIZE'ed pages */
if (size == HPAGE_SIZE)
maybe_tlb_batch_add(mm, addr + REAL_HPAGE_SIZE, ptep, entry, 0,
- hugepage_shift);
+ orig_shift);
return entry;
}
@@ -370,7 +385,8 @@ int pmd_huge(pmd_t pmd)
int pud_huge(pud_t pud)
{
- return 0;
+ return !pud_none(pud) &&
+ (pud_val(pud) & (_PAGE_VALID|_PAGE_PUD_HUGE)) != _PAGE_VALID;
}
static void hugetlb_free_pte_range(struct mmu_gather *tlb, pmd_t *pmd,
@@ -434,8 +450,11 @@ static void hugetlb_free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
next = pud_addr_end(addr, end);
if (pud_none_or_clear_bad(pud))
continue;
- hugetlb_free_pmd_range(tlb, pud, addr, next, floor,
- ceiling);
+ if (is_hugetlb_pud(*pud))
+ pud_clear(pud);
+ else
+ hugetlb_free_pmd_range(tlb, pud, addr, next, floor,
+ ceiling);
} while (pud++, addr = next, addr != end);
start &= PGDIR_MASK;
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 3c40ebd50f92..b2ba410b26f4 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -325,6 +325,41 @@ static void __update_mmu_tsb_insert(struct mm_struct *mm, unsigned long tsb_inde
}
#ifdef CONFIG_HUGETLB_PAGE
+static void __init add_huge_page_size(unsigned long size)
+{
+ unsigned int order;
+
+ if (size_to_hstate(size))
+ return;
+
+ order = ilog2(size) - PAGE_SHIFT;
+ hugetlb_add_hstate(order);
+}
+
+static int __init hugetlbpage_init(void)
+{
+ add_huge_page_size(1UL << HPAGE_64K_SHIFT);
+ add_huge_page_size(1UL << HPAGE_SHIFT);
+ add_huge_page_size(1UL << HPAGE_256MB_SHIFT);
+ add_huge_page_size(1UL << HPAGE_2GB_SHIFT);
+
+ return 0;
+}
+
+arch_initcall(hugetlbpage_init);
+
+static void __init pud_huge_patch(void)
+{
+ struct pud_huge_patch_entry *p;
+ unsigned long addr;
+
+ p = &__pud_huge_patch;
+ addr = p->addr;
+ *(unsigned int *)addr = p->insn;
+
+ __asm__ __volatile__("flush %0" : : "r" (addr));
+}
+
static int __init setup_hugepagesz(char *string)
{
unsigned long long hugepage_size;
@@ -337,6 +372,11 @@ static int __init setup_hugepagesz(char *string)
hugepage_shift = ilog2(hugepage_size);
switch (hugepage_shift) {
+ case HPAGE_16GB_SHIFT:
+ hv_pgsz_mask = HV_PGSZ_MASK_16GB;
+ hv_pgsz_idx = HV_PGSZ_IDX_16GB;
+ pud_huge_patch();
+ break;
case HPAGE_2GB_SHIFT:
hv_pgsz_mask = HV_PGSZ_MASK_2GB;
hv_pgsz_idx = HV_PGSZ_IDX_2GB;
@@ -364,7 +404,7 @@ static int __init setup_hugepagesz(char *string)
goto out;
}
- hugetlb_add_hstate(hugepage_shift - PAGE_SHIFT);
+ add_huge_page_size(hugepage_size);
rc = 1;
out:
@@ -377,6 +417,7 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *
{
struct mm_struct *mm;
unsigned long flags;
+ bool is_huge_tsb;
pte_t pte = *ptep;
if (tlb_type != hypervisor) {
@@ -394,15 +435,37 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *
spin_lock_irqsave(&mm->context.lock, flags);
+ is_huge_tsb = false;
#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
- if ((mm->context.hugetlb_pte_count || mm->context.thp_pte_count) &&
- is_hugetlb_pmd(__pmd(pte_val(pte)))) {
- /* We are fabricating 8MB pages using 4MB real hw pages. */
- pte_val(pte) |= (address & (1UL << REAL_HPAGE_SHIFT));
- __update_mmu_tsb_insert(mm, MM_TSB_HUGE, REAL_HPAGE_SHIFT,
- address, pte_val(pte));
- } else
+ if (mm->context.hugetlb_pte_count || mm->context.thp_pte_count) {
+ unsigned long hugepage_size = PAGE_SIZE;
+
+ if (is_vm_hugetlb_page(vma))
+ hugepage_size = huge_page_size(hstate_vma(vma));
+
+ if (hugepage_size >= PUD_SIZE) {
+ unsigned long mask = 0x1ffc00000UL;
+
+ /* Transfer bits [32:22] from address to resolve
+ * at 4M granularity.
+ */
+ pte_val(pte) &= ~mask;
+ pte_val(pte) |= (address & mask);
+ } else if (hugepage_size >= PMD_SIZE) {
+ /* We are fabricating 8MB pages using 4MB
+ * real hw pages.
+ */
+ pte_val(pte) |= (address & (1UL << REAL_HPAGE_SHIFT));
+ }
+
+ if (hugepage_size >= PMD_SIZE) {
+ __update_mmu_tsb_insert(mm, MM_TSB_HUGE,
+ REAL_HPAGE_SHIFT, address, pte_val(pte));
+ is_huge_tsb = true;
+ }
+ }
#endif
+ if (!is_huge_tsb)
__update_mmu_tsb_insert(mm, MM_TSB_BASE, PAGE_SHIFT,
address, pte_val(pte));
@@ -1921,12 +1984,22 @@ static void __init setup_page_offset(void)
break;
case SUN4V_CHIP_SPARC_M7:
case SUN4V_CHIP_SPARC_SN:
- default:
/* M7 and later support 52-bit virtual addresses. */
sparc64_va_hole_top = 0xfff8000000000000UL;
sparc64_va_hole_bottom = 0x0008000000000000UL;
max_phys_bits = 49;
break;
+ case SUN4V_CHIP_SPARC_M8:
+ default:
+ /* M8 and later support 54-bit virtual addresses.
+ * However, restricting M8 and above VA bits to 53
+ * as 4-level page table cannot support more than
+ * 53 VA bits.
+ */
+ sparc64_va_hole_top = 0xfff0000000000000UL;
+ sparc64_va_hole_bottom = 0x0010000000000000UL;
+ max_phys_bits = 51;
+ break;
}
}
@@ -2138,6 +2211,7 @@ static void __init sun4v_linear_pte_xor_finalize(void)
*/
switch (sun4v_chip_type) {
case SUN4V_CHIP_SPARC_M7:
+ case SUN4V_CHIP_SPARC_M8:
case SUN4V_CHIP_SPARC_SN:
pagecv_flag = 0x00;
break;
@@ -2290,6 +2364,7 @@ void __init paging_init(void)
*/
switch (sun4v_chip_type) {
case SUN4V_CHIP_SPARC_M7:
+ case SUN4V_CHIP_SPARC_M8:
case SUN4V_CHIP_SPARC_SN:
page_cache4v_flag = _PAGE_CP_4V;
break;
diff --git a/arch/sparc/net/bpf_jit_comp_64.c b/arch/sparc/net/bpf_jit_comp_64.c
index 21de77419f48..c340af7b1371 100644
--- a/arch/sparc/net/bpf_jit_comp_64.c
+++ b/arch/sparc/net/bpf_jit_comp_64.c
@@ -128,6 +128,8 @@ static u32 WDISP10(u32 off)
#define BA (BRANCH | CONDA)
#define BG (BRANCH | CONDG)
+#define BL (BRANCH | CONDL)
+#define BLE (BRANCH | CONDLE)
#define BGU (BRANCH | CONDGU)
#define BLEU (BRANCH | CONDLEU)
#define BGE (BRANCH | CONDGE)
@@ -715,9 +717,15 @@ static int emit_compare_and_branch(const u8 code, const u8 dst, u8 src,
case BPF_JGT:
br_opcode = BGU;
break;
+ case BPF_JLT:
+ br_opcode = BLU;
+ break;
case BPF_JGE:
br_opcode = BGEU;
break;
+ case BPF_JLE:
+ br_opcode = BLEU;
+ break;
case BPF_JSET:
case BPF_JNE:
br_opcode = BNE;
@@ -725,9 +733,15 @@ static int emit_compare_and_branch(const u8 code, const u8 dst, u8 src,
case BPF_JSGT:
br_opcode = BG;
break;
+ case BPF_JSLT:
+ br_opcode = BL;
+ break;
case BPF_JSGE:
br_opcode = BGE;
break;
+ case BPF_JSLE:
+ br_opcode = BLE;
+ break;
default:
/* Make sure we dont leak kernel information to the
* user.
@@ -746,18 +760,30 @@ static int emit_compare_and_branch(const u8 code, const u8 dst, u8 src,
case BPF_JGT:
cbcond_opcode = CBCONDGU;
break;
+ case BPF_JLT:
+ cbcond_opcode = CBCONDLU;
+ break;
case BPF_JGE:
cbcond_opcode = CBCONDGEU;
break;
+ case BPF_JLE:
+ cbcond_opcode = CBCONDLEU;
+ break;
case BPF_JNE:
cbcond_opcode = CBCONDNE;
break;
case BPF_JSGT:
cbcond_opcode = CBCONDG;
break;
+ case BPF_JSLT:
+ cbcond_opcode = CBCONDL;
+ break;
case BPF_JSGE:
cbcond_opcode = CBCONDGE;
break;
+ case BPF_JSLE:
+ cbcond_opcode = CBCONDLE;
+ break;
default:
/* Make sure we dont leak kernel information to the
* user.
@@ -802,8 +828,13 @@ static void build_prologue(struct jit_ctx *ctx)
{
s32 stack_needed = BASE_STACKFRAME;
- if (ctx->saw_frame_pointer || ctx->saw_tail_call)
- stack_needed += MAX_BPF_STACK;
+ if (ctx->saw_frame_pointer || ctx->saw_tail_call) {
+ struct bpf_prog *prog = ctx->prog;
+ u32 stack_depth;
+
+ stack_depth = prog->aux->stack_depth;
+ stack_needed += round_up(stack_depth, 16);
+ }
if (ctx->saw_tail_call)
stack_needed += 8;
@@ -1171,10 +1202,14 @@ static int build_insn(const struct bpf_insn *insn, struct jit_ctx *ctx)
/* IF (dst COND src) JUMP off */
case BPF_JMP | BPF_JEQ | BPF_X:
case BPF_JMP | BPF_JGT | BPF_X:
+ case BPF_JMP | BPF_JLT | BPF_X:
case BPF_JMP | BPF_JGE | BPF_X:
+ case BPF_JMP | BPF_JLE | BPF_X:
case BPF_JMP | BPF_JNE | BPF_X:
case BPF_JMP | BPF_JSGT | BPF_X:
+ case BPF_JMP | BPF_JSLT | BPF_X:
case BPF_JMP | BPF_JSGE | BPF_X:
+ case BPF_JMP | BPF_JSLE | BPF_X:
case BPF_JMP | BPF_JSET | BPF_X: {
int err;
@@ -1186,10 +1221,14 @@ static int build_insn(const struct bpf_insn *insn, struct jit_ctx *ctx)
/* IF (dst COND imm) JUMP off */
case BPF_JMP | BPF_JEQ | BPF_K:
case BPF_JMP | BPF_JGT | BPF_K:
+ case BPF_JMP | BPF_JLT | BPF_K:
case BPF_JMP | BPF_JGE | BPF_K:
+ case BPF_JMP | BPF_JLE | BPF_K:
case BPF_JMP | BPF_JNE | BPF_K:
case BPF_JMP | BPF_JSGT | BPF_K:
+ case BPF_JMP | BPF_JSLT | BPF_K:
case BPF_JMP | BPF_JSGE | BPF_K:
+ case BPF_JMP | BPF_JSLE | BPF_K:
case BPF_JMP | BPF_JSET | BPF_K: {
int err;
@@ -1217,7 +1256,7 @@ static int build_insn(const struct bpf_insn *insn, struct jit_ctx *ctx)
}
/* tail call */
- case BPF_JMP | BPF_CALL |BPF_X:
+ case BPF_JMP | BPF_TAIL_CALL:
emit_tail_call(ctx);
break;
@@ -1555,6 +1594,7 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
prog->bpf_func = (void *)ctx.image;
prog->jited = 1;
+ prog->jited_len = image_size;
out_off:
kfree(ctx.offset);
diff --git a/arch/sparc/power/hibernate.c b/arch/sparc/power/hibernate.c
index 17bd2e167e07..df707a8ad311 100644
--- a/arch/sparc/power/hibernate.c
+++ b/arch/sparc/power/hibernate.c
@@ -35,6 +35,5 @@ void restore_processor_state(void)
{
struct mm_struct *mm = current->active_mm;
- load_secondary_context(mm);
- tsb_context_switch(mm);
+ tsb_context_switch_ctx(mm, CTX_HWBITS(mm->context));
}
diff --git a/arch/tile/configs/tilegx_defconfig b/arch/tile/configs/tilegx_defconfig
index 0d925fa0f0c1..9f94435cc44f 100644
--- a/arch/tile/configs/tilegx_defconfig
+++ b/arch/tile/configs/tilegx_defconfig
@@ -409,5 +409,4 @@ CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_ZLIB=m
CONFIG_CRYPTO_LZO=m
diff --git a/arch/tile/configs/tilepro_defconfig b/arch/tile/configs/tilepro_defconfig
index 149d8e8eacb8..1c5bd4f8ffca 100644
--- a/arch/tile/configs/tilepro_defconfig
+++ b/arch/tile/configs/tilepro_defconfig
@@ -189,7 +189,6 @@ CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
-CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
@@ -521,7 +520,6 @@ CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_ZLIB=m
CONFIG_CRYPTO_LZO=m
CONFIG_CRC_CCITT=m
CONFIG_CRC7=m
diff --git a/arch/tile/include/asm/Kbuild b/arch/tile/include/asm/Kbuild
index 16f0b08c8ce9..d28d2b8932c7 100644
--- a/arch/tile/include/asm/Kbuild
+++ b/arch/tile/include/asm/Kbuild
@@ -2,37 +2,18 @@ generic-y += bug.h
generic-y += bugs.h
generic-y += clkdev.h
generic-y += emergency-restart.h
-generic-y += errno.h
generic-y += exec.h
generic-y += extable.h
generic-y += fb.h
-generic-y += fcntl.h
generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
generic-y += irq_regs.h
generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
-generic-y += msgbuf.h
-generic-y += param.h
generic-y += parport.h
-generic-y += poll.h
-generic-y += posix_types.h
generic-y += preempt.h
-generic-y += resource.h
generic-y += seccomp.h
-generic-y += sembuf.h
generic-y += serial.h
-generic-y += shmbuf.h
-generic-y += shmparam.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += statfs.h
-generic-y += termbits.h
-generic-y += termios.h
generic-y += trace_clock.h
-generic-y += types.h
generic-y += xor.h
diff --git a/arch/tile/include/asm/atomic_32.h b/arch/tile/include/asm/atomic_32.h
index a93774255136..53a423e7cb92 100644
--- a/arch/tile/include/asm/atomic_32.h
+++ b/arch/tile/include/asm/atomic_32.h
@@ -101,6 +101,8 @@ static inline void atomic_set(atomic_t *v, int n)
_atomic_xchg(&v->counter, n);
}
+#define atomic_set_release(v, i) atomic_set((v), (i))
+
/* A 64bit atomic type */
typedef struct {
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index bbc71a29b2c6..7061dc8af43a 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -68,8 +68,8 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
int dma_set_mask(struct device *dev, u64 mask);
/*
- * dma_alloc_noncoherent() is #defined to return coherent memory,
- * so there's no need to do any flushing here.
+ * dma_alloc_attrs() always returns non-cacheable memory, so there's no need to
+ * do any flushing here.
*/
static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction)
diff --git a/arch/tile/include/asm/futex.h b/arch/tile/include/asm/futex.h
index e64a1b75fc38..83c1e639b411 100644
--- a/arch/tile/include/asm/futex.h
+++ b/arch/tile/include/asm/futex.h
@@ -106,12 +106,9 @@
lock = __atomic_hashed_lock((int __force *)uaddr)
#endif
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval,
+ u32 __user *uaddr)
{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
int uninitialized_var(val), ret;
__futex_prolog();
@@ -119,12 +116,6 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
/* The 32-bit futex code makes this assumption, so validate it here. */
BUILD_BUG_ON(sizeof(atomic_t) != sizeof(int));
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
- return -EFAULT;
-
pagefault_disable();
switch (op) {
case FUTEX_OP_SET:
@@ -148,30 +139,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
}
pagefault_enable();
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ:
- ret = (val == cmparg);
- break;
- case FUTEX_OP_CMP_NE:
- ret = (val != cmparg);
- break;
- case FUTEX_OP_CMP_LT:
- ret = (val < cmparg);
- break;
- case FUTEX_OP_CMP_GE:
- ret = (val >= cmparg);
- break;
- case FUTEX_OP_CMP_LE:
- ret = (val <= cmparg);
- break;
- case FUTEX_OP_CMP_GT:
- ret = (val > cmparg);
- break;
- default:
- ret = -ENOSYS;
- }
- }
+ if (!ret)
+ *oval = val;
+
return ret;
}
diff --git a/arch/tile/include/asm/spinlock_32.h b/arch/tile/include/asm/spinlock_32.h
index b14b1ba5bf9c..cba8ba9b8da6 100644
--- a/arch/tile/include/asm/spinlock_32.h
+++ b/arch/tile/include/asm/spinlock_32.h
@@ -64,8 +64,6 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
lock->current_ticket = old_ticket + TICKET_QUANTUM;
}
-void arch_spin_unlock_wait(arch_spinlock_t *lock);
-
/*
* Read-write spinlocks, allowing multiple readers
* but only one writer.
diff --git a/arch/tile/include/asm/spinlock_64.h b/arch/tile/include/asm/spinlock_64.h
index b9718fb4e74a..9a2c2d605752 100644
--- a/arch/tile/include/asm/spinlock_64.h
+++ b/arch/tile/include/asm/spinlock_64.h
@@ -58,8 +58,6 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
__insn_fetchadd4(&lock->lock, 1U << __ARCH_SPIN_CURRENT_SHIFT);
}
-void arch_spin_unlock_wait(arch_spinlock_t *lock);
-
void arch_spin_lock_slow(arch_spinlock_t *lock, u32 val);
/* Grab the "next" ticket number and bump it atomically.
diff --git a/arch/tile/include/asm/uaccess.h b/arch/tile/include/asm/uaccess.h
index a803f6bb4d92..cb4fbe7e4f88 100644
--- a/arch/tile/include/asm/uaccess.h
+++ b/arch/tile/include/asm/uaccess.h
@@ -19,7 +19,6 @@
* User space memory access functions
*/
#include <linux/mm.h>
-#include <asm-generic/uaccess-unaligned.h>
#include <asm/processor.h>
#include <asm/page.h>
@@ -327,7 +326,6 @@ extern unsigned long raw_copy_in_user(
extern long strnlen_user(const char __user *str, long n);
-extern long strlen_user(const char __user *str);
extern long strncpy_from_user(char *dst, const char __user *src, long);
/**
diff --git a/arch/tile/include/uapi/arch/abi.h b/arch/tile/include/uapi/arch/abi.h
index c55a3d432644..328e62260272 100644
--- a/arch/tile/include/uapi/arch/abi.h
+++ b/arch/tile/include/uapi/arch/abi.h
@@ -20,58 +20,17 @@
#ifndef __ARCH_ABI_H__
-#if !defined __need_int_reg_t && !defined __DOXYGEN__
-# define __ARCH_ABI_H__
-# include <arch/chip.h>
-#endif
-
-/* Provide the basic machine types. */
-#ifndef __INT_REG_BITS
-
-/** Number of bits in a register. */
-#if defined __tilegx__
-# define __INT_REG_BITS 64
-#elif defined __tilepro__
-# define __INT_REG_BITS 32
-#elif !defined __need_int_reg_t
+#ifndef __tile__ /* support uncommon use of arch headers in non-tile builds */
# include <arch/chip.h>
# define __INT_REG_BITS CHIP_WORD_SIZE()
-#else
-# error Unrecognized architecture with __need_int_reg_t
-#endif
-
-#if __INT_REG_BITS == 64
-
-#ifndef __ASSEMBLER__
-/** Unsigned type that can hold a register. */
-typedef unsigned long long __uint_reg_t;
-
-/** Signed type that can hold a register. */
-typedef long long __int_reg_t;
-#endif
-
-/** String prefix to use for printf(). */
-#define __INT_REG_FMT "ll"
-
-#else
-
-#ifndef __ASSEMBLER__
-/** Unsigned type that can hold a register. */
-typedef unsigned long __uint_reg_t;
-
-/** Signed type that can hold a register. */
-typedef long __int_reg_t;
-#endif
-
-/** String prefix to use for printf(). */
-#define __INT_REG_FMT "l"
-
#endif
-#endif /* __INT_REG_BITS */
+#include <arch/intreg.h>
+/* __need_int_reg_t is deprecated: just include <arch/intreg.h> */
#ifndef __need_int_reg_t
+#define __ARCH_ABI_H__
#ifndef __ASSEMBLER__
/** Unsigned type that can hold a register. */
diff --git a/arch/tile/include/uapi/arch/intreg.h b/arch/tile/include/uapi/arch/intreg.h
new file mode 100644
index 000000000000..1cf2fbf74306
--- /dev/null
+++ b/arch/tile/include/uapi/arch/intreg.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2017 Tilera Corporation. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for
+ * more details.
+ */
+
+/**
+ * @file
+ *
+ * Provide types and defines for the type that can hold a register,
+ * in the implementation namespace.
+ */
+
+#ifndef __ARCH_INTREG_H__
+#define __ARCH_INTREG_H__
+
+/*
+ * Get number of bits in a register. __INT_REG_BITS may be defined
+ * prior to including this header to force a particular bit width.
+ */
+
+#ifndef __INT_REG_BITS
+# if defined __tilegx__
+# define __INT_REG_BITS 64
+# elif defined __tilepro__
+# define __INT_REG_BITS 32
+# else
+# error Unrecognized architecture
+# endif
+#endif
+
+#if __INT_REG_BITS == 64
+
+# ifndef __ASSEMBLER__
+/** Unsigned type that can hold a register. */
+typedef unsigned long long __uint_reg_t;
+
+/** Signed type that can hold a register. */
+typedef long long __int_reg_t;
+# endif
+
+/** String prefix to use for printf(). */
+# define __INT_REG_FMT "ll"
+
+#elif __INT_REG_BITS == 32
+
+# ifndef __ASSEMBLER__
+/** Unsigned type that can hold a register. */
+typedef unsigned long __uint_reg_t;
+
+/** Signed type that can hold a register. */
+typedef long __int_reg_t;
+# endif
+
+/** String prefix to use for printf(). */
+# define __INT_REG_FMT "l"
+
+#else
+# error Unrecognized value of __INT_REG_BITS
+#endif
+
+#endif /* !__ARCH_INTREG_H__ */
diff --git a/arch/tile/include/uapi/asm/Kbuild b/arch/tile/include/uapi/asm/Kbuild
index 0c74c3c5ebfa..5711de0a1b5e 100644
--- a/arch/tile/include/uapi/asm/Kbuild
+++ b/arch/tile/include/uapi/asm/Kbuild
@@ -1,4 +1,23 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
generic-y += ucontext.h
diff --git a/arch/tile/include/uapi/asm/siginfo.h b/arch/tile/include/uapi/asm/siginfo.h
index 56d661bb010b..e83f931aa1f0 100644
--- a/arch/tile/include/uapi/asm/siginfo.h
+++ b/arch/tile/include/uapi/asm/siginfo.h
@@ -26,8 +26,8 @@
/*
* Additional Tile-specific SIGILL si_codes
*/
-#define ILL_DBLFLT (__SI_FAULT|9) /* double fault */
-#define ILL_HARDWALL (__SI_FAULT|10) /* user networks hardwall violation */
+#define ILL_DBLFLT 9 /* double fault */
+#define ILL_HARDWALL 10 /* user networks hardwall violation */
#undef NSIGILL
#define NSIGILL 10
diff --git a/arch/tile/kernel/compat_signal.c b/arch/tile/kernel/compat_signal.c
index 0e863f1ee08c..971d87a1d8cf 100644
--- a/arch/tile/kernel/compat_signal.c
+++ b/arch/tile/kernel/compat_signal.c
@@ -64,7 +64,7 @@ int copy_siginfo_to_user32(struct compat_siginfo __user *to, const siginfo_t *fr
3 ints plus the relevant union member. */
err = __put_user(from->si_signo, &to->si_signo);
err |= __put_user(from->si_errno, &to->si_errno);
- err |= __put_user((short)from->si_code, &to->si_code);
+ err |= __put_user(from->si_code, &to->si_code);
if (from->si_code < 0) {
err |= __put_user(from->si_pid, &to->si_pid);
@@ -77,28 +77,26 @@ int copy_siginfo_to_user32(struct compat_siginfo __user *to, const siginfo_t *fr
*/
err |= __put_user(from->_sifields._pad[0],
&to->_sifields._pad[0]);
- switch (from->si_code >> 16) {
- case __SI_FAULT >> 16:
+ switch (siginfo_layout(from->si_signo, from->si_code)) {
+ case SIL_FAULT:
break;
- case __SI_CHLD >> 16:
+ case SIL_CHLD:
err |= __put_user(from->si_utime, &to->si_utime);
err |= __put_user(from->si_stime, &to->si_stime);
err |= __put_user(from->si_status, &to->si_status);
/* FALL THROUGH */
default:
- case __SI_KILL >> 16:
+ case SIL_KILL:
err |= __put_user(from->si_uid, &to->si_uid);
break;
- case __SI_POLL >> 16:
+ case SIL_POLL:
err |= __put_user(from->si_fd, &to->si_fd);
break;
- case __SI_TIMER >> 16:
+ case SIL_TIMER:
err |= __put_user(from->si_overrun, &to->si_overrun);
err |= __put_user(from->si_int, &to->si_int);
break;
- /* This is not generated by the kernel as of now. */
- case __SI_RT >> 16:
- case __SI_MESGQ >> 16:
+ case SIL_RT:
err |= __put_user(from->si_uid, &to->si_uid);
err |= __put_user(from->si_int, &to->si_int);
break;
diff --git a/arch/tile/kernel/jump_label.c b/arch/tile/kernel/jump_label.c
index 07802d586988..93931a46625b 100644
--- a/arch/tile/kernel/jump_label.c
+++ b/arch/tile/kernel/jump_label.c
@@ -45,14 +45,12 @@ static void __jump_label_transform(struct jump_entry *e,
void arch_jump_label_transform(struct jump_entry *e,
enum jump_label_type type)
{
- get_online_cpus();
mutex_lock(&text_mutex);
__jump_label_transform(e, type);
flush_icache_range(e->code, e->code + sizeof(tilegx_bundle_bits));
mutex_unlock(&text_mutex);
- put_online_cpus();
}
__init_or_module void arch_jump_label_transform_static(struct jump_entry *e,
diff --git a/arch/tile/kernel/pci-dma.c b/arch/tile/kernel/pci-dma.c
index 569bb6dd154a..f2abedc8a080 100644
--- a/arch/tile/kernel/pci-dma.c
+++ b/arch/tile/kernel/pci-dma.c
@@ -317,18 +317,6 @@ static void tile_dma_sync_sg_for_device(struct device *dev,
}
}
-static inline int
-tile_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
- return 0;
-}
-
-static inline int
-tile_dma_supported(struct device *dev, u64 mask)
-{
- return 1;
-}
-
static const struct dma_map_ops tile_default_dma_map_ops = {
.alloc = tile_dma_alloc_coherent,
.free = tile_dma_free_coherent,
@@ -340,8 +328,6 @@ static const struct dma_map_ops tile_default_dma_map_ops = {
.sync_single_for_device = tile_dma_sync_single_for_device,
.sync_sg_for_cpu = tile_dma_sync_sg_for_cpu,
.sync_sg_for_device = tile_dma_sync_sg_for_device,
- .mapping_error = tile_dma_mapping_error,
- .dma_supported = tile_dma_supported
};
const struct dma_map_ops *tile_dma_map_ops = &tile_default_dma_map_ops;
@@ -504,18 +490,6 @@ static void tile_pci_dma_sync_sg_for_device(struct device *dev,
}
}
-static inline int
-tile_pci_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
- return 0;
-}
-
-static inline int
-tile_pci_dma_supported(struct device *dev, u64 mask)
-{
- return 1;
-}
-
static const struct dma_map_ops tile_pci_default_dma_map_ops = {
.alloc = tile_pci_dma_alloc_coherent,
.free = tile_pci_dma_free_coherent,
@@ -527,8 +501,6 @@ static const struct dma_map_ops tile_pci_default_dma_map_ops = {
.sync_single_for_device = tile_pci_dma_sync_single_for_device,
.sync_sg_for_cpu = tile_pci_dma_sync_sg_for_cpu,
.sync_sg_for_device = tile_pci_dma_sync_sg_for_device,
- .mapping_error = tile_pci_dma_mapping_error,
- .dma_supported = tile_pci_dma_supported
};
const struct dma_map_ops *gx_pci_dma_map_ops = &tile_pci_default_dma_map_ops;
@@ -578,8 +550,6 @@ static const struct dma_map_ops pci_hybrid_dma_ops = {
.sync_single_for_device = tile_pci_dma_sync_single_for_device,
.sync_sg_for_cpu = tile_pci_dma_sync_sg_for_cpu,
.sync_sg_for_device = tile_pci_dma_sync_sg_for_device,
- .mapping_error = tile_pci_dma_mapping_error,
- .dma_supported = tile_pci_dma_supported
};
const struct dma_map_ops *gx_legacy_pci_dma_map_ops = &pci_swiotlb_dma_ops;
diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c
index bc6656b5708b..bbf81579b1f8 100644
--- a/arch/tile/kernel/pci.c
+++ b/arch/tile/kernel/pci.c
@@ -67,16 +67,6 @@ static struct pci_ops tile_cfg_ops;
/*
- * We don't need to worry about the alignment of resources.
- */
-resource_size_t pcibios_align_resource(void *data, const struct resource *res,
- resource_size_t size, resource_size_t align)
-{
- return res->start;
-}
-EXPORT_SYMBOL(pcibios_align_resource);
-
-/*
* Open a FD to the hypervisor PCI device.
*
* controller_id is the controller number, config type is 0 or 1 for
@@ -274,6 +264,7 @@ static void fixup_read_and_payload_sizes(void)
*/
int __init pcibios_init(void)
{
+ struct pci_host_bridge *bridge;
int i;
pr_info("PCI: Probing PCI hardware\n");
@@ -306,16 +297,26 @@ int __init pcibios_init(void)
pci_add_resource(&resources, &ioport_resource);
pci_add_resource(&resources, &iomem_resource);
- bus = pci_scan_root_bus(NULL, 0, controller->ops,
- controller, &resources);
+
+ bridge = pci_alloc_host_bridge(0);
+ if (!bridge)
+ break;
+
+ list_splice_init(&resources, &bridge->windows);
+ bridge->dev.parent = NULL;
+ bridge->sysdata = controller;
+ bridge->busnr = 0;
+ bridge->ops = controller->ops;
+ bridge->swizzle_irq = pci_common_swizzle;
+ bridge->map_irq = tile_map_irq;
+
+ pci_scan_root_bus_bridge(bridge);
+ bus = bridge->bus;
controller->root_bus = bus;
controller->last_busno = bus->busn_res.end;
}
}
- /* Do machine dependent PCI interrupt routing */
- pci_fixup_irqs(pci_common_swizzle, tile_map_irq);
-
/*
* This comes from the generic Linux PCI driver.
*
@@ -369,14 +370,6 @@ int __init pcibios_init(void)
}
subsys_initcall(pcibios_init);
-/*
- * No bus fixups needed.
- */
-void pcibios_fixup_bus(struct pci_bus *bus)
-{
- /* Nothing needs to be done. */
-}
-
void pcibios_set_master(struct pci_dev *dev)
{
/* No special bus mastering setup handling. */
diff --git a/arch/tile/kernel/pci_gx.c b/arch/tile/kernel/pci_gx.c
index b554a68eea1b..9aa238ac7b35 100644
--- a/arch/tile/kernel/pci_gx.c
+++ b/arch/tile/kernel/pci_gx.c
@@ -108,15 +108,6 @@ static struct pci_ops tile_cfg_ops;
/* Mask of CPUs that should receive PCIe interrupts. */
static struct cpumask intr_cpus_map;
-/* We don't need to worry about the alignment of resources. */
-resource_size_t pcibios_align_resource(void *data, const struct resource *res,
- resource_size_t size,
- resource_size_t align)
-{
- return res->start;
-}
-EXPORT_SYMBOL(pcibios_align_resource);
-
/*
* Pick a CPU to receive and handle the PCIe interrupts, based on the IRQ #.
* For now, we simply send interrupts to non-dataplane CPUs.
@@ -669,6 +660,7 @@ int __init pcibios_init(void)
resource_size_t offset;
LIST_HEAD(resources);
int next_busno;
+ struct pci_host_bridge *bridge;
int i;
tile_pci_init();
@@ -881,15 +873,25 @@ int __init pcibios_init(void)
controller->mem_offset);
pci_add_resource(&resources, &controller->io_space);
controller->first_busno = next_busno;
- bus = pci_scan_root_bus(NULL, next_busno, controller->ops,
- controller, &resources);
+
+ bridge = pci_alloc_host_bridge(0);
+ if (!bridge)
+ break;
+
+ list_splice_init(&resources, &bridge->windows);
+ bridge->dev.parent = NULL;
+ bridge->sysdata = controller;
+ bridge->busnr = next_busno;
+ bridge->ops = controller->ops;
+ bridge->swizzle_irq = pci_common_swizzle;
+ bridge->map_irq = tile_map_irq;
+
+ pci_scan_root_bus_bridge(bridge);
+ bus = bridge->bus;
controller->root_bus = bus;
next_busno = bus->busn_res.end + 1;
}
- /* Do machine dependent PCI interrupt routing */
- pci_fixup_irqs(pci_common_swizzle, tile_map_irq);
-
/*
* This comes from the generic Linux PCI driver.
*
@@ -1038,11 +1040,6 @@ alloc_mem_map_failed:
}
subsys_initcall(pcibios_init);
-/* No bus fixups needed. */
-void pcibios_fixup_bus(struct pci_bus *bus)
-{
-}
-
/* Process any "pci=" kernel boot arguments. */
char *__init pcibios_setup(char *str)
{
diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c
index 443a70bccc1c..ad83c1e66dbd 100644
--- a/arch/tile/kernel/setup.c
+++ b/arch/tile/kernel/setup.c
@@ -140,7 +140,7 @@ static int __init setup_maxnodemem(char *str)
{
char *endp;
unsigned long long maxnodemem;
- long node;
+ unsigned long node;
node = str ? simple_strtoul(str, &endp, 0) : INT_MAX;
if (node >= MAX_NUMNODES || *endp != ':')
@@ -1200,7 +1200,7 @@ static void __init validate_hv(void)
* We use a struct cpumask for this, so it must be big enough.
*/
if ((smp_height * smp_width) > nr_cpu_ids)
- early_panic("Hypervisor %d x %d grid too big for Linux NR_CPUS %d\n",
+ early_panic("Hypervisor %d x %d grid too big for Linux NR_CPUS %u\n",
smp_height, smp_width, nr_cpu_ids);
#endif
diff --git a/arch/tile/kernel/traps.c b/arch/tile/kernel/traps.c
index 54804866f238..9b08c6055f15 100644
--- a/arch/tile/kernel/traps.c
+++ b/arch/tile/kernel/traps.c
@@ -188,7 +188,7 @@ static int special_ill(tile_bundle_bits bundle, int *sigp, int *codep)
/* Make it the requested signal. */
*sigp = sig;
- *codep = code | __SI_FAULT;
+ *codep = code;
return 1;
}
diff --git a/arch/tile/kernel/vdso/Makefile b/arch/tile/kernel/vdso/Makefile
index c54fff37b5ff..71d5f5d71f79 100644
--- a/arch/tile/kernel/vdso/Makefile
+++ b/arch/tile/kernel/vdso/Makefile
@@ -5,15 +5,14 @@ vdso-syms = rt_sigreturn gettimeofday
obj-vdso = $(patsubst %, v%.o, $(vdso-syms))
# Build rules
-targets := $(obj-vdso) vdso.so vdso.so.dbg vdso.lds
+targets := $(obj-vdso) vdso.so vdso.so.dbg vdso.lds vdso-dummy.o
obj-vdso := $(addprefix $(obj)/, $(obj-vdso))
# vdso32 is only for tilegx -m32 compat task.
VDSO32-$(CONFIG_COMPAT) := y
-obj-y += vdso.o
+obj-y += vdso.o vdso-syms.o
obj-$(VDSO32-y) += vdso32.o
-extra-y += vdso.lds
CPPFLAGS_vdso.lds += -P -C -U$(ARCH)
# vDSO code runs in userspace and -pg doesn't help with profiling anyway.
@@ -42,23 +41,22 @@ $(obj)/vdso.o: $(obj)/vdso.so
# link rule for the .so file, .lds has to be first
SYSCFLAGS_vdso.so.dbg = $(c_flags)
-$(obj)/vdso.so.dbg: $(src)/vdso.lds $(obj-vdso)
+$(obj)/vdso.so.dbg: $(src)/vdso.lds $(obj-vdso) FORCE
$(call if_changed,vdsold)
-
# We also create a special relocatable object that should mirror the symbol
# table and layout of the linked DSO. With ld -R we can then refer to
# these symbols in the kernel code rather than hand-coded addresses.
-extra-y += vdso-syms.o
-$(obj)/built-in.o: $(obj)/vdso-syms.o
-$(obj)/built-in.o: ld_flags += -R $(obj)/vdso-syms.o
SYSCFLAGS_vdso.so.dbg = -shared -s -Wl,-soname=linux-vdso.so.1 \
$(call cc-ldoption, -Wl$(comma)--hash-style=both)
-SYSCFLAGS_vdso_syms.o = -r
-$(obj)/vdso-syms.o: $(src)/vdso.lds $(obj)/vrt_sigreturn.o FORCE
+SYSCFLAGS_vdso_dummy.o = -r
+$(obj)/vdso-dummy.o: $(src)/vdso.lds $(obj)/vrt_sigreturn.o FORCE
$(call if_changed,vdsold)
+LDFLAGS_vdso-syms.o := -r -R
+$(obj)/vdso-syms.o: $(obj)/vdso-dummy.o FORCE
+ $(call if_changed,ld)
# strip rule for the .so file
$(obj)/%.so: OBJCOPYFLAGS := -S
@@ -96,17 +94,17 @@ KBUILD_CFLAGS_32 := $(filter-out -m64,$(KBUILD_CFLAGS))
KBUILD_CFLAGS_32 += -m32 -fPIC -shared
obj-vdso32 = $(patsubst %, v%32.o, $(vdso-syms))
-obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32))
targets += $(obj-vdso32) vdso32.so vdso32.so.dbg
+obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32))
$(obj-vdso32:%=%): KBUILD_AFLAGS = $(KBUILD_AFLAGS_32)
$(obj-vdso32:%=%): KBUILD_CFLAGS = $(KBUILD_CFLAGS_32)
-$(obj)/vgettimeofday32.o: $(obj)/vgettimeofday.c
+$(obj)/vgettimeofday32.o: $(obj)/vgettimeofday.c FORCE
$(call if_changed_rule,cc_o_c)
-$(obj)/vrt_sigreturn32.o: $(obj)/vrt_sigreturn.S
+$(obj)/vrt_sigreturn32.o: $(obj)/vrt_sigreturn.S FORCE
$(call if_changed,as_o_S)
# Force dependency
@@ -114,5 +112,5 @@ $(obj)/vdso32.o: $(obj)/vdso32.so
SYSCFLAGS_vdso32.so.dbg = -m32 -shared -s -Wl,-soname=linux-vdso32.so.1 \
$(call cc-ldoption, -Wl$(comma)--hash-style=both)
-$(obj)/vdso32.so.dbg: $(src)/vdso.lds $(obj-vdso32)
+$(obj)/vdso32.so.dbg: $(src)/vdso.lds $(obj-vdso32) FORCE
$(call if_changed,vdsold)
diff --git a/arch/tile/lib/atomic_asm_32.S b/arch/tile/lib/atomic_asm_32.S
index 1a70e6c0f259..94709ab41ed8 100644
--- a/arch/tile/lib/atomic_asm_32.S
+++ b/arch/tile/lib/atomic_asm_32.S
@@ -24,8 +24,7 @@
* has an opportunity to return -EFAULT to the user if needed.
* The 64-bit routines just return a "long long" with the value,
* since they are only used from kernel space and don't expect to fault.
- * Support for 16-bit ops is included in the framework but we don't provide
- * any (x86_64 has an atomic_inc_short(), so we might want to some day).
+ * Support for 16-bit ops is included in the framework but we don't provide any.
*
* Note that the caller is advised to issue a suitable L1 or L2
* prefetch on the address being manipulated to avoid extra stalls.
diff --git a/arch/tile/lib/spinlock_32.c b/arch/tile/lib/spinlock_32.c
index 076c6cc43113..db9333f2447c 100644
--- a/arch/tile/lib/spinlock_32.c
+++ b/arch/tile/lib/spinlock_32.c
@@ -62,29 +62,6 @@ int arch_spin_trylock(arch_spinlock_t *lock)
}
EXPORT_SYMBOL(arch_spin_trylock);
-void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- u32 iterations = 0;
- int curr = READ_ONCE(lock->current_ticket);
- int next = READ_ONCE(lock->next_ticket);
-
- /* Return immediately if unlocked. */
- if (next == curr)
- return;
-
- /* Wait until the current locker has released the lock. */
- do {
- delay_backoff(iterations++);
- } while (READ_ONCE(lock->current_ticket) == curr);
-
- /*
- * The TILE architecture doesn't do read speculation; therefore
- * a control dependency guarantees a LOAD->{LOAD,STORE} order.
- */
- barrier();
-}
-EXPORT_SYMBOL(arch_spin_unlock_wait);
-
/*
* The low byte is always reserved to be the marker for a "tns" operation
* since the low bit is set to "1" by a tns. The next seven bits are
diff --git a/arch/tile/lib/spinlock_64.c b/arch/tile/lib/spinlock_64.c
index a4b5b2cbce93..de414c22892f 100644
--- a/arch/tile/lib/spinlock_64.c
+++ b/arch/tile/lib/spinlock_64.c
@@ -62,28 +62,6 @@ int arch_spin_trylock(arch_spinlock_t *lock)
}
EXPORT_SYMBOL(arch_spin_trylock);
-void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- u32 iterations = 0;
- u32 val = READ_ONCE(lock->lock);
- u32 curr = arch_spin_current(val);
-
- /* Return immediately if unlocked. */
- if (arch_spin_next(val) == curr)
- return;
-
- /* Wait until the current locker has released the lock. */
- do {
- delay_backoff(iterations++);
- } while (arch_spin_current(READ_ONCE(lock->lock)) == curr);
-
- /*
- * The TILE architecture doesn't do read speculation; therefore
- * a control dependency guarantees a LOAD->{LOAD,STORE} order.
- */
- barrier();
-}
-EXPORT_SYMBOL(arch_spin_unlock_wait);
/*
* If the read lock fails due to a writer, we retry periodically
diff --git a/arch/tile/mm/hugetlbpage.c b/arch/tile/mm/hugetlbpage.c
index 03e5cc4e76e4..0986d426a413 100644
--- a/arch/tile/mm/hugetlbpage.c
+++ b/arch/tile/mm/hugetlbpage.c
@@ -102,7 +102,8 @@ static pte_t *get_pte(pte_t *base, int index, int level)
return ptep;
}
-pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
+pte_t *huge_pte_offset(struct mm_struct *mm,
+ unsigned long addr, unsigned long sz)
{
pgd_t *pgd;
pud_t *pud;
diff --git a/arch/tile/mm/init.c b/arch/tile/mm/init.c
index 3a97e4d7205c..5f757e04bcd2 100644
--- a/arch/tile/mm/init.c
+++ b/arch/tile/mm/init.c
@@ -857,36 +857,6 @@ void __init mem_init(void)
#endif
}
-/*
- * this is for the non-NUMA, single node SMP system case.
- * Specifically, in the case of x86, we will always add
- * memory to the highmem for now.
- */
-#ifndef CONFIG_NEED_MULTIPLE_NODES
-int arch_add_memory(u64 start, u64 size, bool for_device)
-{
- struct pglist_data *pgdata = &contig_page_data;
- struct zone *zone = pgdata->node_zones + MAX_NR_ZONES-1;
- unsigned long start_pfn = start >> PAGE_SHIFT;
- unsigned long nr_pages = size >> PAGE_SHIFT;
-
- return __add_pages(zone, start_pfn, nr_pages);
-}
-
-int remove_memory(u64 start, u64 size)
-{
- return -EINVAL;
-}
-
-#ifdef CONFIG_MEMORY_HOTREMOVE
-int arch_remove_memory(u64 start, u64 size)
-{
- /* TODO */
- return -EBUSY;
-}
-#endif
-#endif
-
struct kmem_cache *pgd_cache;
void __init pgtable_cache_init(void)
diff --git a/arch/tile/mm/pgtable.c b/arch/tile/mm/pgtable.c
index 492a7361e58e..ec5576fd3a86 100644
--- a/arch/tile/mm/pgtable.c
+++ b/arch/tile/mm/pgtable.c
@@ -503,6 +503,17 @@ void __iomem *ioremap_prot(resource_size_t phys_addr, unsigned long size,
}
EXPORT_SYMBOL(ioremap_prot);
+#if !defined(CONFIG_PCI) || !defined(CONFIG_TILEGX)
+/* ioremap is conditionally declared in pci_gx.c */
+
+void __iomem *ioremap(resource_size_t phys_addr, unsigned long size)
+{
+ return NULL;
+}
+EXPORT_SYMBOL(ioremap);
+
+#endif
+
/* Unmap an MMIO VA mapping. */
void iounmap(volatile void __iomem *addr_in)
{
diff --git a/arch/um/Kconfig.um b/arch/um/Kconfig.um
index 4b2ed5858b2e..e26376ab5452 100644
--- a/arch/um/Kconfig.um
+++ b/arch/um/Kconfig.um
@@ -20,6 +20,7 @@ config LD_SCRIPT_DYN
bool
default y
depends on !LD_SCRIPT_STATIC
+ select MODULE_REL_CRCS if MODVERSIONS
source "fs/Kconfig.binfmt"
diff --git a/arch/um/Makefile b/arch/um/Makefile
index 0ca46ededfc7..b76fcce397a1 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -59,10 +59,14 @@ KBUILD_CPPFLAGS += -I$(srctree)/$(HOST_DIR)/um
# Same things for in6addr_loopback and mktime - found in libc. For these two we
# only get link-time error, luckily.
#
+# -Dlongjmp=kernel_longjmp prevents anything from referencing the libpthread.a
+# embedded copy of longjmp, same thing for setjmp.
+#
# These apply to USER_CFLAGS to.
KBUILD_CFLAGS += $(CFLAGS) $(CFLAGS-y) -D__arch_um__ \
$(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap=kernel_vmap \
+ -Dlongjmp=kernel_longjmp -Dsetjmp=kernel_setjmp \
-Din6addr_loopback=kernel_in6addr_loopback \
-Din6addr_any=kernel_in6addr_any -Dstrrchr=kernel_strrchr
@@ -117,7 +121,7 @@ archheaders:
archprepare: include/generated/user_constants.h
LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static
-LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib
+LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib $(call cc-option, -no-pie)
CFLAGS_NO_HARDENING := $(call cc-option, -fno-PIC,) $(call cc-option, -fno-pic,) \
$(call cc-option, -fno-stack-protector,) \
diff --git a/arch/um/configs/i386_defconfig b/arch/um/configs/i386_defconfig
index 5636221b8785..8f114e3b0a7a 100644
--- a/arch/um/configs/i386_defconfig
+++ b/arch/um/configs/i386_defconfig
@@ -53,7 +53,6 @@ CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UML_NET=y
CONFIG_UML_NET_ETHERTAP=y
diff --git a/arch/um/configs/x86_64_defconfig b/arch/um/configs/x86_64_defconfig
index 7a67b7ac1a7e..5d0875fc0db2 100644
--- a/arch/um/configs/x86_64_defconfig
+++ b/arch/um/configs/x86_64_defconfig
@@ -51,7 +51,6 @@ CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
-# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UML_NET=y
CONFIG_UML_NET_ETHERTAP=y
diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index af326fb6510d..c4d162a94be9 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -148,12 +148,7 @@ void mconsole_proc(struct mc_request *req)
}
do {
- loff_t pos = file->f_pos;
- mm_segment_t old_fs = get_fs();
- set_fs(KERNEL_DS);
- len = vfs_read(file, buf, PAGE_SIZE - 1, &pos);
- set_fs(old_fs);
- file->f_pos = pos;
+ len = kernel_read(file, buf, PAGE_SIZE - 1, &file->f_pos);
if (len < 0) {
mconsole_reply(req, "Read of file failed", 1, 0);
goto out_free;
diff --git a/arch/um/drivers/stdio_console.c b/arch/um/drivers/stdio_console.c
index 7b361f36ca96..c90817b04da9 100644
--- a/arch/um/drivers/stdio_console.c
+++ b/arch/um/drivers/stdio_console.c
@@ -192,6 +192,9 @@ __uml_exitcall(console_exit);
static int console_chan_setup(char *str)
{
+ if (!strncmp(str, "sole=", 5)) /* console= option specifies tty */
+ return 0;
+
line_setup(vt_conf, MAX_TTYS, &def_conf, str, "console");
return 1;
}
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 85410279beab..b55fe9bf5d3e 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -534,7 +534,7 @@ static void ubd_handler(void)
for (count = 0; count < n/sizeof(struct io_thread_req *); count++) {
blk_end_request(
(*irq_req_buffer)[count]->req,
- 0,
+ BLK_STS_OK,
(*irq_req_buffer)[count]->length
);
kfree((*irq_req_buffer)[count]);
diff --git a/arch/um/include/asm/common.lds.S b/arch/um/include/asm/common.lds.S
index 133055311dce..9e6d5997cfc4 100644
--- a/arch/um/include/asm/common.lds.S
+++ b/arch/um/include/asm/common.lds.S
@@ -15,7 +15,7 @@
PROVIDE (_unprotected_end = .);
. = ALIGN(4096);
- .note : { *(.note.*) }
+ NOTES
EXCEPTION_TABLE(0)
BUG_TABLE
diff --git a/arch/um/include/asm/io.h b/arch/um/include/asm/io.h
new file mode 100644
index 000000000000..8f35d574f35b
--- /dev/null
+++ b/arch/um/include/asm/io.h
@@ -0,0 +1,17 @@
+#ifndef _ASM_UM_IO_H
+#define _ASM_UM_IO_H
+
+#define ioremap ioremap
+static inline void __iomem *ioremap(phys_addr_t offset, size_t size)
+{
+ return (void __iomem *)(unsigned long)offset;
+}
+
+#define iounmap iounmap
+static inline void iounmap(void __iomem *addr)
+{
+}
+
+#include <asm-generic/io.h>
+
+#endif
diff --git a/arch/um/include/asm/processor-generic.h b/arch/um/include/asm/processor-generic.h
index f6d1a3f747a9..86942a492454 100644
--- a/arch/um/include/asm/processor-generic.h
+++ b/arch/um/include/asm/processor-generic.h
@@ -58,11 +58,6 @@ static inline void release_thread(struct task_struct *task)
{
}
-static inline void mm_copy_segments(struct mm_struct *from_mm,
- struct mm_struct *new_mm)
-{
-}
-
#define init_stack (init_thread_union.stack)
/*
diff --git a/arch/um/include/asm/thread_info.h b/arch/um/include/asm/thread_info.h
index 053baff03674..9300f7630d2a 100644
--- a/arch/um/include/asm/thread_info.h
+++ b/arch/um/include/asm/thread_info.h
@@ -11,6 +11,7 @@
#include <asm/types.h>
#include <asm/page.h>
#include <asm/segment.h>
+#include <sysdep/ptrace_user.h>
struct thread_info {
struct task_struct *task; /* main task structure */
@@ -22,6 +23,8 @@ struct thread_info {
0-0xBFFFFFFF for user
0-0xFFFFFFFF for kernel */
struct thread_info *real_thread; /* Points to non-IRQ stack */
+ unsigned long aux_fp_regs[FP_SIZE]; /* auxiliary fp_regs to save/restore
+ them out-of-band */
};
#define INIT_THREAD_INFO(tsk) \
diff --git a/arch/um/include/asm/tlb.h b/arch/um/include/asm/tlb.h
index 600a2e9bfee2..344d95619d03 100644
--- a/arch/um/include/asm/tlb.h
+++ b/arch/um/include/asm/tlb.h
@@ -45,7 +45,8 @@ static inline void init_tlb_gather(struct mmu_gather *tlb)
}
static inline void
-tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
+arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
+ unsigned long start, unsigned long end)
{
tlb->mm = mm;
tlb->start = start;
@@ -80,13 +81,19 @@ tlb_flush_mmu(struct mmu_gather *tlb)
tlb_flush_mmu_free(tlb);
}
-/* tlb_finish_mmu
+/* arch_tlb_finish_mmu
* Called at the end of the shootdown operation to free up any resources
* that were required.
*/
static inline void
-tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
+arch_tlb_finish_mmu(struct mmu_gather *tlb,
+ unsigned long start, unsigned long end, bool force)
{
+ if (force) {
+ tlb->start = start;
+ tlb->end = end;
+ tlb->need_flush = 1;
+ }
tlb_flush_mmu(tlb);
/* keep the page table cache within bounds */
diff --git a/arch/um/include/asm/unwind.h b/arch/um/include/asm/unwind.h
new file mode 100644
index 000000000000..7ffa5437b761
--- /dev/null
+++ b/arch/um/include/asm/unwind.h
@@ -0,0 +1,8 @@
+#ifndef _ASM_UML_UNWIND_H
+#define _ASM_UML_UNWIND_H
+
+static inline void
+unwind_module_init(struct module *mod, void *orc_ip, size_t orc_ip_size,
+ void *orc, size_t orc_size) {}
+
+#endif /* _ASM_UML_UNWIND_H */
diff --git a/arch/um/include/shared/os.h b/arch/um/include/shared/os.h
index cd1fa97776c3..d8ddaf9790d2 100644
--- a/arch/um/include/shared/os.h
+++ b/arch/um/include/shared/os.h
@@ -242,6 +242,10 @@ extern void setup_hostinfo(char *buf, int len);
extern void os_dump_core(void) __attribute__ ((noreturn));
extern void um_early_printk(const char *s, unsigned int n);
extern void os_fix_helper_signals(void);
+extern void os_info(const char *fmt, ...)
+ __attribute__ ((format (printf, 1, 2)));
+extern void os_warn(const char *fmt, ...)
+ __attribute__ ((format (printf, 1, 2)));
/* time.c */
extern void os_idle_sleep(unsigned long long nsecs);
@@ -274,7 +278,7 @@ extern int protect(struct mm_id * mm_idp, unsigned long addr,
extern int is_skas_winch(int pid, int fd, void *data);
extern int start_userspace(unsigned long stub_stack);
extern int copy_context_skas0(unsigned long stack, int pid);
-extern void userspace(struct uml_pt_regs *regs);
+extern void userspace(struct uml_pt_regs *regs, unsigned long *aux_fp_regs);
extern int map_stub_pages(int fd, unsigned long code, unsigned long data,
unsigned long stack);
extern void new_thread(void *stack, jmp_buf *buf, void (*handler)(void));
diff --git a/arch/um/include/shared/skas/stub-data.h b/arch/um/include/shared/skas/stub-data.h
index a9deece956bf..13f404e1262b 100644
--- a/arch/um/include/shared/skas/stub-data.h
+++ b/arch/um/include/shared/skas/stub-data.h
@@ -8,8 +8,6 @@
#ifndef __STUB_DATA_H
#define __STUB_DATA_H
-#include <time.h>
-
struct stub_data {
unsigned long offset;
int fd;
diff --git a/arch/um/kernel/gmon_syms.c b/arch/um/kernel/gmon_syms.c
index 1bf61266da8e..f138a4a0db99 100644
--- a/arch/um/kernel/gmon_syms.c
+++ b/arch/um/kernel/gmon_syms.c
@@ -7,3 +7,10 @@
extern void __bb_init_func(void *) __attribute__((weak));
EXPORT_SYMBOL(__bb_init_func);
+
+extern void __gcov_init(void *) __attribute__((weak));
+EXPORT_SYMBOL(__gcov_init);
+extern void __gcov_merge_add(void *, unsigned int) __attribute__((weak));
+EXPORT_SYMBOL(__gcov_merge_add);
+extern void __gcov_exit(void) __attribute__((weak));
+EXPORT_SYMBOL(__gcov_exit);
diff --git a/arch/um/kernel/physmem.c b/arch/um/kernel/physmem.c
index 4c9861b421fd..f02596e9931d 100644
--- a/arch/um/kernel/physmem.c
+++ b/arch/um/kernel/physmem.c
@@ -89,8 +89,8 @@ void __init setup_physmem(unsigned long start, unsigned long reserve_end,
offset = uml_reserved - uml_physmem;
map_size = len - offset;
if(map_size <= 0) {
- printf("Too few physical memory! Needed=%d, given=%d\n",
- offset, len);
+ os_warn("Too few physical memory! Needed=%lu, given=%lu\n",
+ offset, len);
exit(1);
}
@@ -99,9 +99,9 @@ void __init setup_physmem(unsigned long start, unsigned long reserve_end,
err = os_map_memory((void *) uml_reserved, physmem_fd, offset,
map_size, 1, 1, 1);
if (err < 0) {
- printf("setup_physmem - mapping %ld bytes of memory at 0x%p "
- "failed - errno = %d\n", map_size,
- (void *) uml_reserved, err);
+ os_warn("setup_physmem - mapping %ld bytes of memory at 0x%p "
+ "failed - errno = %d\n", map_size,
+ (void *) uml_reserved, err);
exit(1);
}
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index a9bd61820042..691b83b10649 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -131,7 +131,7 @@ void new_thread_handler(void)
* callback returns only if the kernel thread execs a process
*/
n = fn(arg);
- userspace(&current->thread.regs.regs);
+ userspace(&current->thread.regs.regs, current_thread_info()->aux_fp_regs);
}
/* Called magically, see new_thread_handler above */
@@ -150,7 +150,7 @@ void fork_handler(void)
current->thread.prev_sched = NULL;
- userspace(&current->thread.regs.regs);
+ userspace(&current->thread.regs.regs, current_thread_info()->aux_fp_regs);
}
int copy_thread(unsigned long clone_flags, unsigned long sp,
@@ -255,11 +255,6 @@ int clear_user_proc(void __user *buf, int size)
return clear_user(buf, size);
}
-int strlen_user_proc(char __user *str)
-{
- return strlen_user(str);
-}
-
int cpu(void)
{
return current_thread_info()->cpu;
diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c
index 0b034ebbda2a..7f69d17de354 100644
--- a/arch/um/kernel/time.c
+++ b/arch/um/kernel/time.c
@@ -98,7 +98,7 @@ static struct clocksource timer_clocksource = {
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
-static void __init timer_setup(void)
+static void __init um_timer_setup(void)
{
int err;
@@ -132,5 +132,5 @@ void read_persistent_clock(struct timespec *ts)
void __init time_init(void)
{
timer_set_signal_handler();
- late_time_init = timer_setup;
+ late_time_init = um_timer_setup;
}
diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
index 59158871b9fc..4e6fcb32620f 100644
--- a/arch/um/kernel/trap.c
+++ b/arch/um/kernel/trap.c
@@ -183,6 +183,16 @@ void fatal_sigsegv(void)
os_dump_core();
}
+/**
+ * segv_handler() - the SIGSEGV handler
+ * @sig: the signal number
+ * @unused_si: the signal info struct; unused in this handler
+ * @regs: the ptrace register information
+ *
+ * The handler first extracts the faultinfo from the UML ptrace regs struct.
+ * If the userfault did not happen in an UML userspace process, bad_segv is called.
+ * Otherwise the signal did happen in a cloned userspace process, handle it.
+ */
void segv_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs)
{
struct faultinfo * fi = UPT_FAULTINFO(regs);
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index 7b5640117325..f433690b9b37 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -34,7 +34,7 @@ static char __initdata command_line[COMMAND_LINE_SIZE] = { 0 };
static void __init add_arg(char *arg)
{
if (strlen(command_line) + strlen(arg) + 1 > COMMAND_LINE_SIZE) {
- printf("add_arg: Too many command line arguments!\n");
+ os_warn("add_arg: Too many command line arguments!\n");
exit(1);
}
if (strlen(command_line) > 0)
@@ -120,6 +120,7 @@ static const char *usage_string =
static int __init uml_version_setup(char *line, int *add)
{
+ /* Explicitly use printf() to show version in stdout */
printf("%s\n", init_utsname()->release);
exit(0);
@@ -148,8 +149,8 @@ __uml_setup("root=", uml_root_setup,
static int __init no_skas_debug_setup(char *line, int *add)
{
- printf("'debug' is not necessary to gdb UML in skas mode - run \n");
- printf("'gdb linux'\n");
+ os_warn("'debug' is not necessary to gdb UML in skas mode - run\n");
+ os_warn("'gdb linux'\n");
return 0;
}
@@ -165,6 +166,7 @@ static int __init Usage(char *line, int *add)
printf(usage_string, init_utsname()->release);
p = &__uml_help_start;
+ /* Explicitly use printf() to show help in stdout */
while (p < &__uml_help_end) {
printf("%s", *p);
p++;
@@ -283,8 +285,8 @@ int __init linux_main(int argc, char **argv)
diff = UML_ROUND_UP(brk_start) - UML_ROUND_UP(&_end);
if (diff > 1024 * 1024) {
- printf("Adding %ld bytes to physical memory to account for "
- "exec-shield gap\n", diff);
+ os_info("Adding %ld bytes to physical memory to account for "
+ "exec-shield gap\n", diff);
physmem_size += UML_ROUND_UP(brk_start) - UML_ROUND_UP(&_end);
}
@@ -324,8 +326,8 @@ int __init linux_main(int argc, char **argv)
end_vm = start_vm + virtmem_size;
if (virtmem_size < physmem_size)
- printf("Kernel virtual memory size shrunk to %lu bytes\n",
- virtmem_size);
+ os_info("Kernel virtual memory size shrunk to %lu bytes\n",
+ virtmem_size);
os_flush_stdout();
diff --git a/arch/um/kernel/umid.c b/arch/um/kernel/umid.c
index f6cc3bd61781..10bf4aca529f 100644
--- a/arch/um/kernel/umid.c
+++ b/arch/um/kernel/umid.c
@@ -16,14 +16,14 @@ static int __init set_umid_arg(char *name, int *add)
int err;
if (umid_inited) {
- printf("umid already set\n");
+ os_warn("umid already set\n");
return 0;
}
*add = 0;
err = set_umid(name);
if (err == -EEXIST)
- printf("umid '%s' already in use\n", name);
+ os_warn("umid '%s' already in use\n", name);
else if (!err)
umid_inited = 1;
diff --git a/arch/um/os-Linux/drivers/tuntap_user.c b/arch/um/os-Linux/drivers/tuntap_user.c
index c2e6e1dad876..db24ce0d09a6 100644
--- a/arch/um/os-Linux/drivers/tuntap_user.c
+++ b/arch/um/os-Linux/drivers/tuntap_user.c
@@ -80,7 +80,7 @@ static int tuntap_open_tramp(char *gate, int *fd_out, int me, int remote,
pid = run_helper(tuntap_pre_exec, &data, argv);
if (pid < 0)
- return -pid;
+ return pid;
close(remote);
diff --git a/arch/um/os-Linux/execvp.c b/arch/um/os-Linux/execvp.c
index 8fb25ca07c46..84a0777c2a45 100644
--- a/arch/um/os-Linux/execvp.c
+++ b/arch/um/os-Linux/execvp.c
@@ -136,7 +136,7 @@ int main(int argc, char**argv)
int ret;
argc--;
if (!argc) {
- fprintf(stderr, "Not enough arguments\n");
+ os_warn("Not enough arguments\n");
return 1;
}
argv++;
diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c
index 9d499de87e63..5f970ece5ac3 100644
--- a/arch/um/os-Linux/main.c
+++ b/arch/um/os-Linux/main.c
@@ -74,8 +74,8 @@ static void install_fatal_handler(int sig)
action.sa_restorer = NULL;
action.sa_handler = last_ditch_exit;
if (sigaction(sig, &action, NULL) < 0) {
- printf("failed to install handler for signal %d - errno = %d\n",
- sig, errno);
+ os_warn("failed to install handler for signal %d "
+ "- errno = %d\n", sig, errno);
exit(1);
}
}
@@ -175,7 +175,7 @@ int __init main(int argc, char **argv, char **envp)
/* disable SIGIO for the fds and set SIGIO to be ignored */
err = deactivate_all_fds();
if (err)
- printf("deactivate_all_fds failed, errno = %d\n", -err);
+ os_warn("deactivate_all_fds failed, errno = %d\n", -err);
/*
* Let any pending signals fire now. This ensures
@@ -184,14 +184,13 @@ int __init main(int argc, char **argv, char **envp)
*/
unblock_signals();
+ os_info("\n");
/* Reboot */
if (ret) {
- printf("\n");
execvp(new_argv[0], new_argv);
perror("Failed to exec kernel");
ret = 1;
}
- printf("\n");
return uml_exitcode;
}
diff --git a/arch/um/os-Linux/mem.c b/arch/um/os-Linux/mem.c
index 8b1767668515..e162a95ad7dd 100644
--- a/arch/um/os-Linux/mem.c
+++ b/arch/um/os-Linux/mem.c
@@ -25,13 +25,13 @@ static int __init check_tmpfs(const char *dir)
{
struct statfs st;
- printf("Checking if %s is on tmpfs...", dir);
+ os_info("Checking if %s is on tmpfs...", dir);
if (statfs(dir, &st) < 0) {
- printf("%s\n", strerror(errno));
+ os_info("%s\n", strerror(errno));
} else if (st.f_type != TMPFS_MAGIC) {
- printf("no\n");
+ os_info("no\n");
} else {
- printf("OK\n");
+ os_info("OK\n");
return 0;
}
return -1;
@@ -61,18 +61,18 @@ static char * __init choose_tempdir(void)
int i;
const char *dir;
- printf("Checking environment variables for a tempdir...");
+ os_info("Checking environment variables for a tempdir...");
for (i = 0; vars[i]; i++) {
dir = getenv(vars[i]);
if ((dir != NULL) && (*dir != '\0')) {
- printf("%s\n", dir);
+ os_info("%s\n", dir);
if (check_tmpfs(dir) >= 0)
goto done;
else
goto warn;
}
}
- printf("none found\n");
+ os_info("none found\n");
for (i = 0; tmpfs_dirs[i]; i++) {
dir = tmpfs_dirs[i];
@@ -82,7 +82,7 @@ static char * __init choose_tempdir(void)
dir = fallback_dir;
warn:
- printf("Warning: tempdir %s is not on tmpfs\n", dir);
+ os_warn("Warning: tempdir %s is not on tmpfs\n", dir);
done:
/* Make a copy since getenv results may not remain valid forever. */
return strdup(dir);
@@ -100,7 +100,7 @@ static int __init make_tempfile(const char *template)
if (tempdir == NULL) {
tempdir = choose_tempdir();
if (tempdir == NULL) {
- fprintf(stderr, "Failed to choose tempdir: %s\n",
+ os_warn("Failed to choose tempdir: %s\n",
strerror(errno));
return -1;
}
@@ -125,7 +125,7 @@ static int __init make_tempfile(const char *template)
strcat(tempname, template);
fd = mkstemp(tempname);
if (fd < 0) {
- fprintf(stderr, "open - cannot create %s: %s\n", tempname,
+ os_warn("open - cannot create %s: %s\n", tempname,
strerror(errno));
goto out;
}
@@ -194,16 +194,16 @@ void __init check_tmpexec(void)
addr = mmap(NULL, UM_KERN_PAGE_SIZE,
PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE, fd, 0);
- printf("Checking PROT_EXEC mmap in %s...", tempdir);
+ os_info("Checking PROT_EXEC mmap in %s...", tempdir);
if (addr == MAP_FAILED) {
err = errno;
- printf("%s\n", strerror(err));
+ os_warn("%s\n", strerror(err));
close(fd);
if (err == EPERM)
- printf("%s must be not mounted noexec\n", tempdir);
+ os_warn("%s must be not mounted noexec\n", tempdir);
exit(1);
}
- printf("OK\n");
+ os_info("OK\n");
munmap(addr, UM_KERN_PAGE_SIZE);
close(fd);
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index 03b3c4cc7735..c94c3bd70ccd 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -88,12 +88,11 @@ bad_wait:
extern unsigned long current_stub_stack(void);
-static void get_skas_faultinfo(int pid, struct faultinfo *fi)
+static void get_skas_faultinfo(int pid, struct faultinfo *fi, unsigned long *aux_fp_regs)
{
int err;
- unsigned long fpregs[FP_SIZE];
- err = get_fp_registers(pid, fpregs);
+ err = get_fp_registers(pid, aux_fp_regs);
if (err < 0) {
printk(UM_KERN_ERR "save_fp_registers returned %d\n",
err);
@@ -108,12 +107,12 @@ static void get_skas_faultinfo(int pid, struct faultinfo *fi)
wait_stub_done(pid);
/*
- * faultinfo is prepared by the stub-segv-handler at start of
+ * faultinfo is prepared by the stub_segv_handler at start of
* the stub stack page. We just have to copy it.
*/
memcpy(fi, (void *)current_stub_stack(), sizeof(*fi));
- err = put_fp_registers(pid, fpregs);
+ err = put_fp_registers(pid, aux_fp_regs);
if (err < 0) {
printk(UM_KERN_ERR "put_fp_registers returned %d\n",
err);
@@ -121,9 +120,9 @@ static void get_skas_faultinfo(int pid, struct faultinfo *fi)
}
}
-static void handle_segv(int pid, struct uml_pt_regs * regs)
+static void handle_segv(int pid, struct uml_pt_regs *regs, unsigned long *aux_fp_regs)
{
- get_skas_faultinfo(pid, &regs->faultinfo);
+ get_skas_faultinfo(pid, &regs->faultinfo, aux_fp_regs);
segv(regs->faultinfo, 0, 1, NULL);
}
@@ -175,6 +174,21 @@ static void handle_trap(int pid, struct uml_pt_regs *regs,
extern char __syscall_stub_start[];
+/**
+ * userspace_tramp() - userspace trampoline
+ * @stack: pointer to the new userspace stack page, can be NULL, if? FIXME:
+ *
+ * The userspace trampoline is used to setup a new userspace process in start_userspace() after it was clone()'ed.
+ * This function will run on a temporary stack page.
+ * It ptrace()'es itself, then
+ * Two pages are mapped into the userspace address space:
+ * - STUB_CODE (with EXEC), which contains the skas stub code
+ * - STUB_DATA (with R/W), which contains a data page that is used to transfer certain data between the UML userspace process and the UML kernel.
+ * Also for the userspace process a SIGSEGV handler is installed to catch pagefaults in the userspace process.
+ * And last the process stops itself to give control to the UML kernel for this userspace process.
+ *
+ * Return: Always zero, otherwise the current userspace process is ended with non null exit() call
+ */
static int userspace_tramp(void *stack)
{
void *addr;
@@ -236,12 +250,24 @@ static int userspace_tramp(void *stack)
int userspace_pid[NR_CPUS];
+/**
+ * start_userspace() - prepare a new userspace process
+ * @stub_stack: pointer to the stub stack. Can be NULL, if? FIXME:
+ *
+ * Setups a new temporary stack page that is used while userspace_tramp() runs
+ * Clones the kernel process into a new userspace process, with FDs only.
+ *
+ * Return: When positive: the process id of the new userspace process,
+ * when negative: an error number.
+ * FIXME: can PIDs become negative?!
+ */
int start_userspace(unsigned long stub_stack)
{
void *stack;
unsigned long sp;
int pid, status, n, flags, err;
+ /* setup a temporary stack page */
stack = mmap(NULL, UM_KERN_PAGE_SIZE,
PROT_READ | PROT_WRITE | PROT_EXEC,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
@@ -252,10 +278,12 @@ int start_userspace(unsigned long stub_stack)
return err;
}
+ /* set stack pointer to the end of the stack page, so it can grow downwards */
sp = (unsigned long) stack + UM_KERN_PAGE_SIZE - sizeof(void *);
flags = CLONE_FILES | SIGCHLD;
+ /* clone into new userspace process */
pid = clone(userspace_tramp, (void *) sp, flags, (void *) stub_stack);
if (pid < 0) {
err = -errno;
@@ -303,7 +331,7 @@ int start_userspace(unsigned long stub_stack)
return err;
}
-void userspace(struct uml_pt_regs *regs)
+void userspace(struct uml_pt_regs *regs, unsigned long *aux_fp_regs)
{
int err, status, op, pid = userspace_pid[0];
/* To prevent races if using_sysemu changes under us.*/
@@ -323,11 +351,17 @@ void userspace(struct uml_pt_regs *regs)
* fail. In this case, there is nothing to do but
* just kill the process.
*/
- if (ptrace(PTRACE_SETREGS, pid, 0, regs->gp))
+ if (ptrace(PTRACE_SETREGS, pid, 0, regs->gp)) {
+ printk(UM_KERN_ERR "userspace - ptrace set regs "
+ "failed, errno = %d\n", errno);
fatal_sigsegv();
+ }
- if (put_fp_registers(pid, regs->fp))
+ if (put_fp_registers(pid, regs->fp)) {
+ printk(UM_KERN_ERR "userspace - ptrace set fp regs "
+ "failed, errno = %d\n", errno);
fatal_sigsegv();
+ }
/* Now we set local_using_sysemu to be used for one loop */
local_using_sysemu = get_using_sysemu();
@@ -372,11 +406,11 @@ void userspace(struct uml_pt_regs *regs)
case SIGSEGV:
if (PTRACE_FULL_FAULTINFO) {
get_skas_faultinfo(pid,
- &regs->faultinfo);
+ &regs->faultinfo, aux_fp_regs);
(*sig_info[SIGSEGV])(SIGSEGV, (struct siginfo *)&si,
regs);
}
- else handle_segv(pid, regs);
+ else handle_segv(pid, regs, aux_fp_regs);
break;
case SIGTRAP + 0x80:
handle_trap(pid, regs, local_using_sysemu);
diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c
index 22a358ef1b0c..82bf5f8442ba 100644
--- a/arch/um/os-Linux/start_up.c
+++ b/arch/um/os-Linux/start_up.c
@@ -154,10 +154,10 @@ static int __init nosysemu_cmd_param(char *str, int* add)
__uml_setup("nosysemu", nosysemu_cmd_param,
"nosysemu\n"
-" Turns off syscall emulation patch for ptrace (SYSEMU) on.\n"
+" Turns off syscall emulation patch for ptrace (SYSEMU).\n"
" SYSEMU is a performance-patch introduced by Laurent Vivier. It changes\n"
-" behaviour of ptrace() and helps reducing host context switch rate.\n"
-" To make it working, you need a kernel patch for your host, too.\n"
+" behaviour of ptrace() and helps reduce host context switch rates.\n"
+" To make it work, you need a kernel patch for your host, too.\n"
" See http://perso.wanadoo.fr/laurent.vivier/UML/ for further \n"
" information.\n\n");
@@ -166,7 +166,7 @@ static void __init check_sysemu(void)
unsigned long regs[MAX_REG_NR];
int pid, n, status, count=0;
- non_fatal("Checking syscall emulation patch for ptrace...");
+ os_info("Checking syscall emulation patch for ptrace...");
sysemu_supported = 0;
pid = start_ptraced_child();
@@ -199,10 +199,10 @@ static void __init check_sysemu(void)
goto fail_stopped;
sysemu_supported = 1;
- non_fatal("OK\n");
+ os_info("OK\n");
set_using_sysemu(!force_sysemu_disabled);
- non_fatal("Checking advanced syscall emulation patch for ptrace...");
+ os_info("Checking advanced syscall emulation patch for ptrace...");
pid = start_ptraced_child();
if ((ptrace(PTRACE_OLDSETOPTIONS, pid, 0,
@@ -244,7 +244,7 @@ static void __init check_sysemu(void)
goto fail_stopped;
sysemu_supported = 2;
- non_fatal("OK\n");
+ os_info("OK\n");
if (!force_sysemu_disabled)
set_using_sysemu(sysemu_supported);
@@ -260,7 +260,7 @@ static void __init check_ptrace(void)
{
int pid, syscall, n, status;
- non_fatal("Checking that ptrace can change system call numbers...");
+ os_info("Checking that ptrace can change system call numbers...");
pid = start_ptraced_child();
if ((ptrace(PTRACE_OLDSETOPTIONS, pid, 0,
@@ -292,7 +292,7 @@ static void __init check_ptrace(void)
}
}
stop_ptraced_child(pid, 0, 1);
- non_fatal("OK\n");
+ os_info("OK\n");
check_sysemu();
}
@@ -308,15 +308,17 @@ static void __init check_coredump_limit(void)
return;
}
- printf("Core dump limits :\n\tsoft - ");
+ os_info("Core dump limits :\n\tsoft - ");
if (lim.rlim_cur == RLIM_INFINITY)
- printf("NONE\n");
- else printf("%lu\n", lim.rlim_cur);
+ os_info("NONE\n");
+ else
+ os_info("%llu\n", (unsigned long long)lim.rlim_cur);
- printf("\thard - ");
+ os_info("\thard - ");
if (lim.rlim_max == RLIM_INFINITY)
- printf("NONE\n");
- else printf("%lu\n", lim.rlim_max);
+ os_info("NONE\n");
+ else
+ os_info("%llu\n", (unsigned long long)lim.rlim_max);
}
void __init os_early_checks(void)
@@ -349,7 +351,7 @@ int __init parse_iomem(char *str, int *add)
driver = str;
file = strchr(str,',');
if (file == NULL) {
- fprintf(stderr, "parse_iomem : failed to parse iomem\n");
+ os_warn("parse_iomem : failed to parse iomem\n");
goto out;
}
*file = '\0';
diff --git a/arch/um/os-Linux/umid.c b/arch/um/os-Linux/umid.c
index c1dc89261f67..998fbb445458 100644
--- a/arch/um/os-Linux/umid.c
+++ b/arch/um/os-Linux/umid.c
@@ -35,8 +35,9 @@ static int __init make_uml_dir(void)
err = -ENOENT;
if (home == NULL) {
- printk(UM_KERN_ERR "make_uml_dir : no value in "
- "environment for $HOME\n");
+ printk(UM_KERN_ERR
+ "%s: no value in environment for $HOME\n",
+ __func__);
goto err;
}
strlcpy(dir, home, sizeof(dir));
@@ -50,13 +51,15 @@ static int __init make_uml_dir(void)
err = -ENOMEM;
uml_dir = malloc(strlen(dir) + 1);
if (uml_dir == NULL) {
- printf("make_uml_dir : malloc failed, errno = %d\n", errno);
+ printk(UM_KERN_ERR "%s : malloc failed, errno = %d\n",
+ __func__, errno);
goto err;
}
strcpy(uml_dir, dir);
if ((mkdir(uml_dir, 0777) < 0) && (errno != EEXIST)) {
- printf("Failed to mkdir '%s': %s\n", uml_dir, strerror(errno));
+ printk(UM_KERN_ERR "Failed to mkdir '%s': %s\n",
+ uml_dir, strerror(errno));
err = -errno;
goto err_free;
}
@@ -351,7 +354,7 @@ char *get_umid(void)
static int __init set_uml_dir(char *name, int *add)
{
if (*name == '\0') {
- printf("uml_dir can't be an empty string\n");
+ os_warn("uml_dir can't be an empty string\n");
return 0;
}
@@ -362,7 +365,7 @@ static int __init set_uml_dir(char *name, int *add)
uml_dir = malloc(strlen(name) + 2);
if (uml_dir == NULL) {
- printf("Failed to malloc uml_dir - error = %d\n", errno);
+ os_warn("Failed to malloc uml_dir - error = %d\n", errno);
/*
* Return 0 here because do_initcalls doesn't look at
@@ -387,8 +390,8 @@ static void remove_umid_dir(void)
sprintf(dir, "%s%s", uml_dir, umid);
err = remove_files_and_dir(dir);
if (err)
- printf("remove_umid_dir - remove_files_and_dir failed with "
- "err = %d\n", err);
+ os_warn("%s - remove_files_and_dir failed with err = %d\n",
+ __func__, err);
}
__uml_exitcall(remove_umid_dir);
diff --git a/arch/um/os-Linux/util.c b/arch/um/os-Linux/util.c
index faee55ef6d2f..8cc8b2617a67 100644
--- a/arch/um/os-Linux/util.c
+++ b/arch/um/os-Linux/util.c
@@ -13,6 +13,7 @@
#include <wait.h>
#include <sys/mman.h>
#include <sys/utsname.h>
+#include <init.h>
#include <os.h>
void stack_protections(unsigned long address)
@@ -152,3 +153,36 @@ void um_early_printk(const char *s, unsigned int n)
{
printf("%.*s", n, s);
}
+
+static int quiet_info;
+
+static int __init quiet_cmd_param(char *str, int *add)
+{
+ quiet_info = 1;
+ return 0;
+}
+
+__uml_setup("quiet", quiet_cmd_param,
+"quiet\n"
+" Turns off information messages during boot.\n\n");
+
+void os_info(const char *fmt, ...)
+{
+ va_list list;
+
+ if (quiet_info)
+ return;
+
+ va_start(list, fmt);
+ vfprintf(stderr, fmt, list);
+ va_end(list);
+}
+
+void os_warn(const char *fmt, ...)
+{
+ va_list list;
+
+ va_start(list, fmt);
+ vfprintf(stderr, fmt, list);
+ va_end(list);
+}
diff --git a/arch/unicore32/include/asm/Kbuild b/arch/unicore32/include/asm/Kbuild
index e9ad511c1043..fda7e2153086 100644
--- a/arch/unicore32/include/asm/Kbuild
+++ b/arch/unicore32/include/asm/Kbuild
@@ -1,67 +1,38 @@
-
generic-y += atomic.h
-generic-y += auxvec.h
-generic-y += bitsperlong.h
generic-y += bugs.h
generic-y += clkdev.h
generic-y += current.h
generic-y += device.h
generic-y += div64.h
generic-y += emergency-restart.h
-generic-y += errno.h
generic-y += exec.h
generic-y += extable.h
generic-y += fb.h
-generic-y += fcntl.h
generic-y += ftrace.h
generic-y += futex.h
generic-y += hardirq.h
generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += kdebug.h
generic-y += kmap_types.h
+generic-y += kprobes.h
generic-y += local.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
-generic-y += mman.h
generic-y += module.h
-generic-y += msgbuf.h
-generic-y += param.h
generic-y += parport.h
generic-y += percpu.h
-generic-y += poll.h
-generic-y += posix_types.h
generic-y += preempt.h
-generic-y += resource.h
generic-y += sections.h
generic-y += segment.h
-generic-y += sembuf.h
generic-y += serial.h
-generic-y += setup.h
-generic-y += shmbuf.h
-generic-y += shmparam.h
-generic-y += siginfo.h
-generic-y += signal.h
generic-y += sizes.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += stat.h
-generic-y += statfs.h
-generic-y += swab.h
generic-y += syscalls.h
-generic-y += termbits.h
-generic-y += termios.h
generic-y += topology.h
generic-y += trace_clock.h
-generic-y += types.h
-generic-y += ucontext.h
generic-y += unaligned.h
generic-y += user.h
generic-y += vga.h
generic-y += word-at-a-time.h
generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/unicore32/include/uapi/asm/Kbuild b/arch/unicore32/include/uapi/asm/Kbuild
index 13a97aa2285f..759a71411169 100644
--- a/arch/unicore32/include/uapi/asm/Kbuild
+++ b/arch/unicore32/include/uapi/asm/Kbuild
@@ -1,4 +1,32 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += setup.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
+generic-y += siginfo.h
+generic-y += signal.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += swab.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
+generic-y += ucontext.h
diff --git a/arch/unicore32/kernel/pci.c b/arch/unicore32/kernel/pci.c
index 1053bca1f8aa..9f26840e41b1 100644
--- a/arch/unicore32/kernel/pci.c
+++ b/arch/unicore32/kernel/pci.c
@@ -101,7 +101,7 @@ void pci_puv3_preinit(void)
writel(readl(PCIBRI_CMD) | PCIBRI_CMD_IO | PCIBRI_CMD_MEM, PCIBRI_CMD);
}
-static int __init pci_puv3_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+static int pci_puv3_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
if (dev->bus->number == 0) {
#ifdef CONFIG_ARCH_FPGA /* 4 pci slots */
@@ -252,19 +252,46 @@ void pcibios_fixup_bus(struct pci_bus *bus)
}
EXPORT_SYMBOL(pcibios_fixup_bus);
+static struct resource busn_resource = {
+ .name = "PCI busn",
+ .start = 0,
+ .end = 255,
+ .flags = IORESOURCE_BUS,
+};
+
static int __init pci_common_init(void)
{
struct pci_bus *puv3_bus;
+ struct pci_host_bridge *bridge;
+ int ret;
+
+ bridge = pci_alloc_host_bridge(0);
+ if (!bridge)
+ return -ENOMEM;
pci_puv3_preinit();
- puv3_bus = pci_scan_bus(0, &pci_puv3_ops, NULL);
+ pci_add_resource(&bridge->windows, &ioport_resource);
+ pci_add_resource(&bridge->windows, &iomem_resource);
+ pci_add_resource(&bridge->windows, &busn_resource);
+ bridge->sysdata = NULL;
+ bridge->busnr = 0;
+ bridge->ops = &pci_puv3_ops;
+ bridge->swizzle_irq = pci_common_swizzle;
+ bridge->map_irq = pci_puv3_map_irq;
+
+ /* Scan our single hose. */
+ ret = pci_scan_root_bus_bridge(bridge);
+ if (ret) {
+ pci_free_host_bridge(bridge);
+ return;
+ }
+
+ puv3_bus = bridge->bus;
if (!puv3_bus)
panic("PCI: unable to scan bus!");
- pci_fixup_irqs(pci_common_swizzle, pci_puv3_map_irq);
-
pci_bus_size_bridges(puv3_bus);
pci_bus_assign_resources(puv3_bus);
pci_bus_add_devices(puv3_bus);
diff --git a/arch/x86/Kbuild b/arch/x86/Kbuild
index 586b786b3edf..0038a2d10a7a 100644
--- a/arch/x86/Kbuild
+++ b/arch/x86/Kbuild
@@ -8,10 +8,7 @@ obj-$(CONFIG_KVM) += kvm/
obj-$(CONFIG_XEN) += xen/
# Hyper-V paravirtualization support
-obj-$(CONFIG_HYPERVISOR_GUEST) += hyperv/
-
-# lguest paravirtualization support
-obj-$(CONFIG_LGUEST_GUEST) += lguest/
+obj-$(subst m,y,$(CONFIG_HYPERV)) += hyperv/
obj-y += realmode/
obj-y += kernel/
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 0efb4c9497bc..971feac13506 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -22,7 +22,7 @@ config X86_64
def_bool y
depends on 64BIT
# Options that are inherently 64-bit kernel only:
- select ARCH_HAS_GIGANTIC_PAGE
+ select ARCH_HAS_GIGANTIC_PAGE if (MEMORY_ISOLATION && COMPACTION) || CMA
select ARCH_SUPPORTS_INT128
select ARCH_USE_CMPXCHG_LOCKREF
select HAVE_ARCH_SOFT_DIRTY
@@ -50,15 +50,19 @@ config X86
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_ELF_RANDOMIZE
select ARCH_HAS_FAST_MULTIPLIER
+ select ARCH_HAS_FORTIFY_SOURCE
select ARCH_HAS_GCOV_PROFILE_ALL
select ARCH_HAS_KCOV if X86_64
- select ARCH_HAS_MMIO_FLUSH
select ARCH_HAS_PMEM_API if X86_64
+ # Causing hangs/crashes, see the commit that added this change for details.
+ select ARCH_HAS_REFCOUNT if BROKEN
+ select ARCH_HAS_UACCESS_FLUSHCACHE if X86_64
select ARCH_HAS_SET_MEMORY
select ARCH_HAS_SG_CHAIN
select ARCH_HAS_STRICT_KERNEL_RWX
select ARCH_HAS_STRICT_MODULE_RWX
select ARCH_HAS_UBSAN_SANITIZE_ALL
+ select ARCH_HAS_ZONE_DEVICE if X86_64
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
select ARCH_MIGHT_HAVE_PC_PARPORT
@@ -69,9 +73,9 @@ config X86
select ARCH_USE_BUILTIN_BSWAP
select ARCH_USE_QUEUED_RWLOCKS
select ARCH_USE_QUEUED_SPINLOCKS
- select ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH if SMP
- select ARCH_WANT_FRAME_POINTERS
+ select ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH
select ARCH_WANTS_DYNAMIC_TASK_STRUCT
+ select ARCH_WANTS_THP_SWAP if X86_64
select BUILDTIME_EXTABLE_SORT
select CLKEVT_I8253
select CLOCKSOURCE_VALIDATE_LAST_CYCLE
@@ -87,6 +91,8 @@ config X86
select GENERIC_EARLY_IOREMAP
select GENERIC_FIND_FIRST_BIT
select GENERIC_IOMAP
+ select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
+ select GENERIC_IRQ_MIGRATION if SMP
select GENERIC_IRQ_PROBE
select GENERIC_IRQ_SHOW
select GENERIC_PENDING_IRQ if SMP
@@ -94,6 +100,7 @@ config X86
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
select GENERIC_TIME_VSYSCALL
+ select HARDLOCKUP_CHECK_TIMESTAMP if X86_64
select HAVE_ACPI_APEI if ACPI
select HAVE_ACPI_APEI_NMI if ACPI
select HAVE_ALIGNED_STRUCT_PAGE if SLUB
@@ -151,21 +158,25 @@ config X86
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
select HAVE_MIXED_BREAKPOINTS_REGS
+ select HAVE_MOD_ARCH_SPECIFIC
select HAVE_NMI
select HAVE_OPROFILE
select HAVE_OPTPROBES
select HAVE_PCSPKR_PLATFORM
select HAVE_PERF_EVENTS
select HAVE_PERF_EVENTS_NMI
+ select HAVE_HARDLOCKUP_DETECTOR_PERF if PERF_EVENTS && HAVE_PERF_EVENTS_NMI
select HAVE_PERF_REGS
select HAVE_PERF_USER_STACK_DUMP
+ select HAVE_RCU_TABLE_FREE
select HAVE_REGS_AND_STACK_ACCESS_API
- select HAVE_RELIABLE_STACKTRACE if X86_64 && FRAME_POINTER && STACK_VALIDATION
+ select HAVE_RELIABLE_STACKTRACE if X86_64 && FRAME_POINTER_UNWINDER && STACK_VALIDATION
select HAVE_STACK_VALIDATION if X86_64
select HAVE_SYSCALL_TRACEPOINTS
select HAVE_UNSTABLE_SCHED_CLOCK
select HAVE_USER_RETURN_NOTIFIER
select IRQ_FORCED_THREADING
+ select PCI_LOCKLESS_CONFIG
select PERF_EVENTS
select RTC_LIB
select RTC_MC146818_LIB
@@ -318,6 +329,7 @@ config FIX_EARLYCON_MEM
config PGTABLE_LEVELS
int
+ default 5 if X86_5LEVEL
default 4 if X86_64
default 3 if X86_PAE
default 2
@@ -416,16 +428,16 @@ config GOLDFISH
def_bool y
depends on X86_GOLDFISH
-config INTEL_RDT_A
- bool "Intel Resource Director Technology Allocation support"
+config INTEL_RDT
+ bool "Intel Resource Director Technology support"
default n
depends on X86 && CPU_SUP_INTEL
select KERNFS
help
- Select to enable resource allocation which is a sub-feature of
- Intel Resource Director Technology(RDT). More information about
- RDT can be found in the Intel x86 Architecture Software
- Developer Manual.
+ Select to enable resource allocation and monitoring which are
+ sub-features of Intel Resource Director Technology(RDT). More
+ information about RDT can be found in the Intel x86
+ Architecture Software Developer Manual.
Say N if unsure.
@@ -769,8 +781,6 @@ config KVM_DEBUG_FS
Statistics are displayed in debugfs filesystem. Enabling this option
may incur significant overhead.
-source "arch/x86/lguest/Kconfig"
-
config PARAVIRT_TIME_ACCOUNTING
bool "Paravirtual steal time accounting"
depends on PARAVIRT
@@ -1082,7 +1092,7 @@ config X86_MCE_THRESHOLD
def_bool y
config X86_MCE_INJECT
- depends on X86_MCE && X86_LOCAL_APIC && X86_MCELOG_LEGACY
+ depends on X86_MCE && X86_LOCAL_APIC && DEBUG_FS
tristate "Machine check injector support"
---help---
Provide support for injecting machine checks for testing purposes.
@@ -1390,6 +1400,24 @@ config X86_PAE
has the cost of more pagetable lookup overhead, and also
consumes more pagetable space per process.
+config X86_5LEVEL
+ bool "Enable 5-level page tables support"
+ depends on X86_64
+ ---help---
+ 5-level paging enables access to larger address space:
+ upto 128 PiB of virtual address space and 4 PiB of
+ physical address space.
+
+ It will be supported by future Intel CPUs.
+
+ Note: a kernel with this option enabled can only be booted
+ on machines that support the feature.
+
+ See Documentation/x86/x86_64/5level-paging.txt for more
+ information.
+
+ Say N if unsure.
+
config ARCH_PHYS_ADDR_T_64BIT
def_bool y
depends on X86_64 || X86_PAE
@@ -1407,6 +1435,35 @@ config X86_DIRECT_GBPAGES
supports them), so don't confuse the user by printing
that we have them enabled.
+config ARCH_HAS_MEM_ENCRYPT
+ def_bool y
+
+config AMD_MEM_ENCRYPT
+ bool "AMD Secure Memory Encryption (SME) support"
+ depends on X86_64 && CPU_SUP_AMD
+ ---help---
+ Say yes to enable support for the encryption of system memory.
+ This requires an AMD processor that supports Secure Memory
+ Encryption (SME).
+
+config AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT
+ bool "Activate AMD Secure Memory Encryption (SME) by default"
+ default y
+ depends on AMD_MEM_ENCRYPT
+ ---help---
+ Say yes to have system memory encrypted by default if running on
+ an AMD processor that supports Secure Memory Encryption (SME).
+
+ If set to Y, then the encryption of system memory can be
+ deactivated with the mem_encrypt=off command line option.
+
+ If set to N, then the encryption of system memory can be
+ activated with the mem_encrypt=on command line option.
+
+config ARCH_USE_MEMREMAP_PROT
+ def_bool y
+ depends on AMD_MEM_ENCRYPT
+
# Common NUMA Features
config NUMA
bool "Numa Memory Allocation and Scheduler Support"
@@ -1748,7 +1805,9 @@ config X86_SMAP
config X86_INTEL_MPX
prompt "Intel MPX (Memory Protection Extensions)"
def_bool n
- depends on CPU_SUP_INTEL
+ # Note: only available in 64-bit mode due to VMA flags shortage
+ depends on CPU_SUP_INTEL && X86_64
+ select ARCH_USES_HIGH_VMA_FLAGS
---help---
MPX provides hardware features that can be used in
conjunction with compiler-instrumented code to check
@@ -2263,6 +2322,10 @@ source "kernel/livepatch/Kconfig"
endmenu
+config ARCH_HAS_ADD_PAGES
+ def_bool y
+ depends on X86_64 && ARCH_ENABLE_MEMORY_HOTPLUG
+
config ARCH_ENABLE_MEMORY_HOTPLUG
def_bool y
depends on X86_64 || (X86_32 && HIGHMEM)
@@ -2283,6 +2346,10 @@ config ARCH_ENABLE_HUGEPAGE_MIGRATION
def_bool y
depends on X86_64 && HUGETLB_PAGE && MIGRATION
+config ARCH_ENABLE_THP_MIGRATION
+ def_bool y
+ depends on X86_64 && TRANSPARENT_HUGEPAGE
+
menu "Power management and ACPI options"
config ARCH_HIBERNATION_HEADER
@@ -2793,6 +2860,9 @@ config X86_DMA_REMAP
bool
depends on STA2X11
+config HAVE_GENERIC_GUP
+ def_bool y
+
source "net/Kconfig"
source "drivers/Kconfig"
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index fcb7604172ce..71a48a30fc84 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -305,8 +305,6 @@ config DEBUG_ENTRY
Some of these sanity checks may slow down kernel entries and
exits or otherwise impact performance.
- This is currently used to help test NMI code.
-
If unsure, say N.
config DEBUG_NMI_SELFTEST
@@ -348,6 +346,7 @@ config X86_DEBUG_FPU
config PUNIT_ATOM_DEBUG
tristate "ATOM Punit debug driver"
+ depends on PCI
select DEBUG_FS
select IOSF_MBI
---help---
@@ -357,4 +356,61 @@ config PUNIT_ATOM_DEBUG
The current power state can be read from
/sys/kernel/debug/punit_atom/dev_power_state
+choice
+ prompt "Choose kernel unwinder"
+ default FRAME_POINTER_UNWINDER
+ ---help---
+ This determines which method will be used for unwinding kernel stack
+ traces for panics, oopses, bugs, warnings, perf, /proc/<pid>/stack,
+ livepatch, lockdep, and more.
+
+config FRAME_POINTER_UNWINDER
+ bool "Frame pointer unwinder"
+ select FRAME_POINTER
+ ---help---
+ This option enables the frame pointer unwinder for unwinding kernel
+ stack traces.
+
+ The unwinder itself is fast and it uses less RAM than the ORC
+ unwinder, but the kernel text size will grow by ~3% and the kernel's
+ overall performance will degrade by roughly 5-10%.
+
+ This option is recommended if you want to use the livepatch
+ consistency model, as this is currently the only way to get a
+ reliable stack trace (CONFIG_HAVE_RELIABLE_STACKTRACE).
+
+config ORC_UNWINDER
+ bool "ORC unwinder"
+ depends on X86_64
+ select STACK_VALIDATION
+ ---help---
+ This option enables the ORC (Oops Rewind Capability) unwinder for
+ unwinding kernel stack traces. It uses a custom data format which is
+ a simplified version of the DWARF Call Frame Information standard.
+
+ This unwinder is more accurate across interrupt entry frames than the
+ frame pointer unwinder. It also enables a 5-10% performance
+ improvement across the entire kernel compared to frame pointers.
+
+ Enabling this option will increase the kernel's runtime memory usage
+ by roughly 2-4MB, depending on your kernel config.
+
+config GUESS_UNWINDER
+ bool "Guess unwinder"
+ depends on EXPERT
+ ---help---
+ This option enables the "guess" unwinder for unwinding kernel stack
+ traces. It scans the stack and reports every kernel text address it
+ finds. Some of the addresses it reports may be incorrect.
+
+ While this option often produces false positives, it can still be
+ useful in many cases. Unlike the other unwinders, it has no runtime
+ overhead.
+
+endchoice
+
+config FRAME_POINTER
+ depends on !ORC_UNWINDER && !GUESS_UNWINDER
+ bool
+
endmenu
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index bf240b920473..6276572259c8 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -11,6 +11,16 @@ else
KBUILD_DEFCONFIG := $(ARCH)_defconfig
endif
+# For gcc stack alignment is specified with -mpreferred-stack-boundary,
+# clang has the option -mstack-alignment for that purpose.
+ifneq ($(call cc-option, -mpreferred-stack-boundary=4),)
+ cc_stack_align4 := -mpreferred-stack-boundary=2
+ cc_stack_align8 := -mpreferred-stack-boundary=3
+else ifneq ($(call cc-option, -mstack-alignment=16),)
+ cc_stack_align4 := -mstack-alignment=4
+ cc_stack_align8 := -mstack-alignment=8
+endif
+
# How to compile the 16-bit code. Note we always compile for -march=i386;
# that way we can complain to the user if the CPU is insufficient.
#
@@ -24,10 +34,11 @@ REALMODE_CFLAGS := $(M16_CFLAGS) -g -Os -D__KERNEL__ \
-DDISABLE_BRANCH_PROFILING \
-Wall -Wstrict-prototypes -march=i386 -mregparm=3 \
-fno-strict-aliasing -fomit-frame-pointer -fno-pic \
- -mno-mmx -mno-sse \
- $(call cc-option, -ffreestanding) \
- $(call cc-option, -fno-stack-protector) \
- $(call cc-option, -mpreferred-stack-boundary=2)
+ -mno-mmx -mno-sse
+
+REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), -ffreestanding)
+REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), -fno-stack-protector)
+REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), $(cc_stack_align4))
export REALMODE_CFLAGS
# BITS is used as extension for files which are available in a 32 bit
@@ -64,8 +75,10 @@ ifeq ($(CONFIG_X86_32),y)
# with nonstandard options
KBUILD_CFLAGS += -fno-pic
- # prevent gcc from keeping the stack 16 byte aligned
- KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
+ # Align the stack to the register width instead of using the default
+ # alignment of 16 bytes. This reduces stack usage and the number of
+ # alignment instructions.
+ KBUILD_CFLAGS += $(call cc-option,$(cc_stack_align4))
# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
# a lot more stack due to the lack of sharing of stacklots:
@@ -97,8 +110,14 @@ else
KBUILD_CFLAGS += $(call cc-option,-mno-80387)
KBUILD_CFLAGS += $(call cc-option,-mno-fp-ret-in-387)
- # Use -mpreferred-stack-boundary=3 if supported.
- KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=3)
+ # By default gcc and clang use a stack alignment of 16 bytes for x86.
+ # However the standard kernel entry on x86-64 leaves the stack on an
+ # 8-byte boundary. If the compiler isn't informed about the actual
+ # alignment it will generate extra alignment instructions for the
+ # default alignment which keep the stack *mis*aligned.
+ # Furthermore an alignment to the register width reduces stack usage
+ # and the number of alignment instructions.
+ KBUILD_CFLAGS += $(call cc-option,$(cc_stack_align8))
# Use -mskip-rax-setup if supported.
KBUILD_CFLAGS += $(call cc-option,-mskip-rax-setup)
@@ -215,9 +234,6 @@ KBUILD_CFLAGS += -Wno-sign-compare
#
KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
-KBUILD_CFLAGS += $(mflags-y)
-KBUILD_AFLAGS += $(mflags-y)
-
archscripts: scripts_basic
$(Q)$(MAKE) $(build)=arch/x86/tools relocs
@@ -257,8 +273,6 @@ drivers-$(CONFIG_PM) += arch/x86/power/
drivers-$(CONFIG_FB) += arch/x86/video/
-drivers-$(CONFIG_RAS) += arch/x86/ras/
-
####
# boot loader support. Several targets are kept for legacy purposes
diff --git a/arch/x86/Makefile_32.cpu b/arch/x86/Makefile_32.cpu
index a45eb15b7cf2..f3717d36718a 100644
--- a/arch/x86/Makefile_32.cpu
+++ b/arch/x86/Makefile_32.cpu
@@ -9,7 +9,6 @@ else
tune = $(call cc-option,-mcpu=$(1),$(2))
endif
-align := $(cc-option-align)
cflags-$(CONFIG_M486) += -march=i486
cflags-$(CONFIG_M586) += -march=i586
cflags-$(CONFIG_M586TSC) += -march=i586
@@ -24,11 +23,11 @@ cflags-$(CONFIG_MK6) += -march=k6
# They make zero difference whatsosever to performance at this time.
cflags-$(CONFIG_MK7) += -march=athlon
cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8,-march=athlon)
-cflags-$(CONFIG_MCRUSOE) += -march=i686 $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
-cflags-$(CONFIG_MEFFICEON) += -march=i686 $(call tune,pentium3) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
+cflags-$(CONFIG_MCRUSOE) += -march=i686 -falign-functions=0 -falign-jumps=0 -falign-loops=0
+cflags-$(CONFIG_MEFFICEON) += -march=i686 $(call tune,pentium3) -falign-functions=0 -falign-jumps=0 -falign-loops=0
cflags-$(CONFIG_MWINCHIPC6) += $(call cc-option,-march=winchip-c6,-march=i586)
cflags-$(CONFIG_MWINCHIP3D) += $(call cc-option,-march=winchip2,-march=i586)
-cflags-$(CONFIG_MCYRIXIII) += $(call cc-option,-march=c3,-march=i486) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
+cflags-$(CONFIG_MCYRIXIII) += $(call cc-option,-march=c3,-march=i486) -falign-functions=0 -falign-jumps=0 -falign-loops=0
cflags-$(CONFIG_MVIAC3_2) += $(call cc-option,-march=c3-2,-march=i686)
cflags-$(CONFIG_MVIAC7) += -march=i686
cflags-$(CONFIG_MCORE2) += -march=i686 $(call tune,core2)
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 0d810fb15eac..d88a2fddba8c 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -73,12 +73,13 @@ UBSAN_SANITIZE := n
$(obj)/bzImage: asflags-y := $(SVGA_MODE)
quiet_cmd_image = BUILD $@
+silent_redirect_image = >/dev/null
cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
- $(obj)/zoffset.h $@
+ $(obj)/zoffset.h $@ $($(quiet)redirect_image)
$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
$(call if_changed,image)
- @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
+ @$(kecho) 'Kernel: $@ is ready' ' (#'`cat .version`')'
OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index 2c860ad4fe06..8a958274b54c 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -34,6 +34,7 @@ KBUILD_CFLAGS += $(cflags-y)
KBUILD_CFLAGS += -mno-mmx -mno-sse
KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
+KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
GCOV_PROFILE := n
diff --git a/arch/x86/boot/compressed/cmdline.c b/arch/x86/boot/compressed/cmdline.c
index 73ccf63b0f48..9dc1ce6ba3c0 100644
--- a/arch/x86/boot/compressed/cmdline.c
+++ b/arch/x86/boot/compressed/cmdline.c
@@ -13,7 +13,7 @@ static inline char rdfs8(addr_t addr)
return *((char *)(fs + addr));
}
#include "../cmdline.c"
-static unsigned long get_cmd_line_ptr(void)
+unsigned long get_cmd_line_ptr(void)
{
unsigned long cmd_line_ptr = boot_params->hdr.cmd_line_ptr;
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index cbf4b87f55b9..e56dbc67e837 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -767,7 +767,7 @@ static efi_status_t setup_e820(struct boot_params *params,
m |= (u64)efi->efi_memmap_hi << 32;
#endif
- d = (efi_memory_desc_t *)(m + (i * efi->efi_memdesc_size));
+ d = efi_early_memdesc_ptr(m, efi->efi_memdesc_size, i);
switch (d->type) {
case EFI_RESERVED_TYPE:
case EFI_RUNTIME_SERVICES_CODE:
@@ -997,6 +997,9 @@ struct boot_params *efi_main(struct efi_config *c,
if (boot_params->secure_boot == efi_secureboot_mode_unset)
boot_params->secure_boot = efi_get_secureboot(sys_table);
+ /* Ask the firmware to clear memory on unclean shutdown */
+ efi_enable_reset_attack_mitigation(sys_table);
+
setup_graphics(boot_params);
setup_efi_pci(boot_params);
@@ -1046,9 +1049,31 @@ struct boot_params *efi_main(struct efi_config *c,
memset((char *)gdt->address, 0x0, gdt->size);
desc = (struct desc_struct *)gdt->address;
- /* The first GDT is a dummy and the second is unused. */
- desc += 2;
+ /* The first GDT is a dummy. */
+ desc++;
+
+ if (IS_ENABLED(CONFIG_X86_64)) {
+ /* __KERNEL32_CS */
+ desc->limit0 = 0xffff;
+ desc->base0 = 0x0000;
+ desc->base1 = 0x0000;
+ desc->type = SEG_TYPE_CODE | SEG_TYPE_EXEC_READ;
+ desc->s = DESC_TYPE_CODE_DATA;
+ desc->dpl = 0;
+ desc->p = 1;
+ desc->limit1 = 0xf;
+ desc->avl = 0;
+ desc->l = 0;
+ desc->d = SEG_OP_SIZE_32BIT;
+ desc->g = SEG_GRANULARITY_4KB;
+ desc->base2 = 0x00;
+ desc++;
+ } else {
+ /* Second entry is unused on 32-bit */
+ desc++;
+ }
+ /* __KERNEL_CS */
desc->limit0 = 0xffff;
desc->base0 = 0x0000;
desc->base1 = 0x0000;
@@ -1056,14 +1081,20 @@ struct boot_params *efi_main(struct efi_config *c,
desc->s = DESC_TYPE_CODE_DATA;
desc->dpl = 0;
desc->p = 1;
- desc->limit = 0xf;
+ desc->limit1 = 0xf;
desc->avl = 0;
- desc->l = 0;
- desc->d = SEG_OP_SIZE_32BIT;
+ if (IS_ENABLED(CONFIG_X86_64)) {
+ desc->l = 1;
+ desc->d = 0;
+ } else {
+ desc->l = 0;
+ desc->d = SEG_OP_SIZE_32BIT;
+ }
desc->g = SEG_GRANULARITY_4KB;
desc->base2 = 0x00;
-
desc++;
+
+ /* __KERNEL_DS */
desc->limit0 = 0xffff;
desc->base0 = 0x0000;
desc->base1 = 0x0000;
@@ -1071,30 +1102,31 @@ struct boot_params *efi_main(struct efi_config *c,
desc->s = DESC_TYPE_CODE_DATA;
desc->dpl = 0;
desc->p = 1;
- desc->limit = 0xf;
+ desc->limit1 = 0xf;
desc->avl = 0;
desc->l = 0;
desc->d = SEG_OP_SIZE_32BIT;
desc->g = SEG_GRANULARITY_4KB;
desc->base2 = 0x00;
-
-#ifdef CONFIG_X86_64
- /* Task segment value */
desc++;
- desc->limit0 = 0x0000;
- desc->base0 = 0x0000;
- desc->base1 = 0x0000;
- desc->type = SEG_TYPE_TSS;
- desc->s = 0;
- desc->dpl = 0;
- desc->p = 1;
- desc->limit = 0x0;
- desc->avl = 0;
- desc->l = 0;
- desc->d = 0;
- desc->g = SEG_GRANULARITY_4KB;
- desc->base2 = 0x00;
-#endif /* CONFIG_X86_64 */
+
+ if (IS_ENABLED(CONFIG_X86_64)) {
+ /* Task segment value */
+ desc->limit0 = 0x0000;
+ desc->base0 = 0x0000;
+ desc->base1 = 0x0000;
+ desc->type = SEG_TYPE_TSS;
+ desc->s = 0;
+ desc->dpl = 0;
+ desc->p = 1;
+ desc->limit1 = 0x0;
+ desc->avl = 0;
+ desc->l = 0;
+ desc->d = 0;
+ desc->g = SEG_GRANULARITY_4KB;
+ desc->base2 = 0x00;
+ desc++;
+ }
asm volatile("cli");
asm volatile ("lgdt %0" : : "m" (*gdt));
diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index d85b9625e836..11c68cf53d4e 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -61,71 +61,6 @@
__HEAD
ENTRY(startup_32)
-#ifdef CONFIG_EFI_STUB
- jmp preferred_addr
-
- /*
- * We don't need the return address, so set up the stack so
- * efi_main() can find its arguments.
- */
-ENTRY(efi_pe_entry)
- add $0x4, %esp
-
- call 1f
-1: popl %esi
- subl $1b, %esi
-
- popl %ecx
- movl %ecx, efi32_config(%esi) /* Handle */
- popl %ecx
- movl %ecx, efi32_config+8(%esi) /* EFI System table pointer */
-
- /* Relocate efi_config->call() */
- leal efi32_config(%esi), %eax
- add %esi, 40(%eax)
- pushl %eax
-
- call make_boot_params
- cmpl $0, %eax
- je fail
- movl %esi, BP_code32_start(%eax)
- popl %ecx
- pushl %eax
- pushl %ecx
- jmp 2f /* Skip efi_config initialization */
-
-ENTRY(efi32_stub_entry)
- add $0x4, %esp
- popl %ecx
- popl %edx
-
- call 1f
-1: popl %esi
- subl $1b, %esi
-
- movl %ecx, efi32_config(%esi) /* Handle */
- movl %edx, efi32_config+8(%esi) /* EFI System table pointer */
-
- /* Relocate efi_config->call() */
- leal efi32_config(%esi), %eax
- add %esi, 40(%eax)
- pushl %eax
-2:
- call efi_main
- cmpl $0, %eax
- movl %eax, %esi
- jne 2f
-fail:
- /* EFI init failed, so hang. */
- hlt
- jmp fail
-2:
- movl BP_code32_start(%esi), %eax
- leal preferred_addr(%eax), %eax
- jmp *%eax
-
-preferred_addr:
-#endif
cld
/*
* Test KEEP_SEGMENTS flag to see if the bootloader is asking
@@ -208,6 +143,70 @@ preferred_addr:
jmp *%eax
ENDPROC(startup_32)
+#ifdef CONFIG_EFI_STUB
+/*
+ * We don't need the return address, so set up the stack so efi_main() can find
+ * its arguments.
+ */
+ENTRY(efi_pe_entry)
+ add $0x4, %esp
+
+ call 1f
+1: popl %esi
+ subl $1b, %esi
+
+ popl %ecx
+ movl %ecx, efi32_config(%esi) /* Handle */
+ popl %ecx
+ movl %ecx, efi32_config+8(%esi) /* EFI System table pointer */
+
+ /* Relocate efi_config->call() */
+ leal efi32_config(%esi), %eax
+ add %esi, 40(%eax)
+ pushl %eax
+
+ call make_boot_params
+ cmpl $0, %eax
+ je fail
+ movl %esi, BP_code32_start(%eax)
+ popl %ecx
+ pushl %eax
+ pushl %ecx
+ jmp 2f /* Skip efi_config initialization */
+ENDPROC(efi_pe_entry)
+
+ENTRY(efi32_stub_entry)
+ add $0x4, %esp
+ popl %ecx
+ popl %edx
+
+ call 1f
+1: popl %esi
+ subl $1b, %esi
+
+ movl %ecx, efi32_config(%esi) /* Handle */
+ movl %edx, efi32_config+8(%esi) /* EFI System table pointer */
+
+ /* Relocate efi_config->call() */
+ leal efi32_config(%esi), %eax
+ add %esi, 40(%eax)
+ pushl %eax
+2:
+ call efi_main
+ cmpl $0, %eax
+ movl %eax, %esi
+ jne 2f
+fail:
+ /* EFI init failed, so hang. */
+ hlt
+ jmp fail
+2:
+ movl BP_code32_start(%esi), %eax
+ leal startup_32(%eax), %eax
+ jmp *%eax
+ENDPROC(efi32_stub_entry)
+#endif
+
.text
relocated:
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index d2ae1f821e0c..b4a5d284391c 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -243,65 +243,6 @@ ENTRY(startup_64)
* that maps our entire kernel(text+data+bss+brk), zero page
* and command line.
*/
-#ifdef CONFIG_EFI_STUB
- /*
- * The entry point for the PE/COFF executable is efi_pe_entry, so
- * only legacy boot loaders will execute this jmp.
- */
- jmp preferred_addr
-
-ENTRY(efi_pe_entry)
- movq %rcx, efi64_config(%rip) /* Handle */
- movq %rdx, efi64_config+8(%rip) /* EFI System table pointer */
-
- leaq efi64_config(%rip), %rax
- movq %rax, efi_config(%rip)
-
- call 1f
-1: popq %rbp
- subq $1b, %rbp
-
- /*
- * Relocate efi_config->call().
- */
- addq %rbp, efi64_config+40(%rip)
-
- movq %rax, %rdi
- call make_boot_params
- cmpq $0,%rax
- je fail
- mov %rax, %rsi
- leaq startup_32(%rip), %rax
- movl %eax, BP_code32_start(%rsi)
- jmp 2f /* Skip the relocation */
-
-handover_entry:
- call 1f
-1: popq %rbp
- subq $1b, %rbp
-
- /*
- * Relocate efi_config->call().
- */
- movq efi_config(%rip), %rax
- addq %rbp, 40(%rax)
-2:
- movq efi_config(%rip), %rdi
- call efi_main
- movq %rax,%rsi
- cmpq $0,%rax
- jne 2f
-fail:
- /* EFI init failed, so hang. */
- hlt
- jmp fail
-2:
- movl BP_code32_start(%esi), %eax
- leaq preferred_addr(%rax), %rax
- jmp *%rax
-
-preferred_addr:
-#endif
/* Setup data segments. */
xorl %eax, %eax
@@ -346,6 +287,48 @@ preferred_addr:
/* Set up the stack */
leaq boot_stack_end(%rbx), %rsp
+#ifdef CONFIG_X86_5LEVEL
+ /* Check if 5-level paging has already enabled */
+ movq %cr4, %rax
+ testl $X86_CR4_LA57, %eax
+ jnz lvl5
+
+ /*
+ * At this point we are in long mode with 4-level paging enabled,
+ * but we want to enable 5-level paging.
+ *
+ * The problem is that we cannot do it directly. Setting LA57 in
+ * long mode would trigger #GP. So we need to switch off long mode
+ * first.
+ *
+ * NOTE: This is not going to work if bootloader put us above 4G
+ * limit.
+ *
+ * The first step is go into compatibility mode.
+ */
+
+ /* Clear additional page table */
+ leaq lvl5_pgtable(%rbx), %rdi
+ xorq %rax, %rax
+ movq $(PAGE_SIZE/8), %rcx
+ rep stosq
+
+ /*
+ * Setup current CR3 as the first and only entry in a new top level
+ * page table.
+ */
+ movq %cr3, %rdi
+ leaq 0x7 (%rdi), %rax
+ movq %rax, lvl5_pgtable(%rbx)
+
+ /* Switch to compatibility mode (CS.L = 0 CS.D = 1) via far return */
+ pushq $__KERNEL32_CS
+ leaq compatible_mode(%rip), %rax
+ pushq %rax
+ lretq
+lvl5:
+#endif
+
/* Zero EFLAGS */
pushq $0
popfq
@@ -371,6 +354,59 @@ preferred_addr:
jmp *%rax
#ifdef CONFIG_EFI_STUB
+
+/* The entry point for the PE/COFF executable is efi_pe_entry. */
+ENTRY(efi_pe_entry)
+ movq %rcx, efi64_config(%rip) /* Handle */
+ movq %rdx, efi64_config+8(%rip) /* EFI System table pointer */
+
+ leaq efi64_config(%rip), %rax
+ movq %rax, efi_config(%rip)
+
+ call 1f
+1: popq %rbp
+ subq $1b, %rbp
+
+ /*
+ * Relocate efi_config->call().
+ */
+ addq %rbp, efi64_config+40(%rip)
+
+ movq %rax, %rdi
+ call make_boot_params
+ cmpq $0,%rax
+ je fail
+ mov %rax, %rsi
+ leaq startup_32(%rip), %rax
+ movl %eax, BP_code32_start(%rsi)
+ jmp 2f /* Skip the relocation */
+
+handover_entry:
+ call 1f
+1: popq %rbp
+ subq $1b, %rbp
+
+ /*
+ * Relocate efi_config->call().
+ */
+ movq efi_config(%rip), %rax
+ addq %rbp, 40(%rax)
+2:
+ movq efi_config(%rip), %rdi
+ call efi_main
+ movq %rax,%rsi
+ cmpq $0,%rax
+ jne 2f
+fail:
+ /* EFI init failed, so hang. */
+ hlt
+ jmp fail
+2:
+ movl BP_code32_start(%esi), %eax
+ leaq startup_64(%rax), %rax
+ jmp *%rax
+ENDPROC(efi_pe_entry)
+
.org 0x390
ENTRY(efi64_stub_entry)
movq %rdi, efi64_config(%rip) /* Handle */
@@ -429,6 +465,44 @@ relocated:
jmp *%rax
.code32
+#ifdef CONFIG_X86_5LEVEL
+compatible_mode:
+ /* Setup data and stack segments */
+ movl $__KERNEL_DS, %eax
+ movl %eax, %ds
+ movl %eax, %ss
+
+ /* Disable paging */
+ movl %cr0, %eax
+ btrl $X86_CR0_PG_BIT, %eax
+ movl %eax, %cr0
+
+ /* Point CR3 to 5-level paging */
+ leal lvl5_pgtable(%ebx), %eax
+ movl %eax, %cr3
+
+ /* Enable PAE and LA57 mode */
+ movl %cr4, %eax
+ orl $(X86_CR4_PAE | X86_CR4_LA57), %eax
+ movl %eax, %cr4
+
+ /* Calculate address we are running at */
+ call 1f
+1: popl %edi
+ subl $1b, %edi
+
+ /* Prepare stack for far return to Long Mode */
+ pushl $__KERNEL_CS
+ leal lvl5(%edi), %eax
+ push %eax
+
+ /* Enable paging back */
+ movl $(X86_CR0_PG | X86_CR0_PE), %eax
+ movl %eax, %cr0
+
+ lret
+#endif
+
no_longmode:
/* This isn't an x86-64 CPU so hang */
1:
@@ -442,7 +516,7 @@ gdt:
.word gdt_end - gdt
.long gdt
.word 0
- .quad 0x0000000000000000 /* NULL descriptor */
+ .quad 0x00cf9a000000ffff /* __KERNEL32_CS */
.quad 0x00af9a000000ffff /* __KERNEL_CS */
.quad 0x00cf92000000ffff /* __KERNEL_DS */
.quad 0x0080890000000000 /* TS descriptor */
@@ -486,3 +560,7 @@ boot_stack_end:
.balign 4096
pgtable:
.fill BOOT_PGT_SIZE, 1, 0
+#ifdef CONFIG_X86_5LEVEL
+lvl5_pgtable:
+ .fill PAGE_SIZE, 1, 0
+#endif
diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c
index 56a7e9201741..17818ba6906f 100644
--- a/arch/x86/boot/compressed/kaslr.c
+++ b/arch/x86/boot/compressed/kaslr.c
@@ -9,15 +9,43 @@
* contain the entire properly aligned running kernel image.
*
*/
+
+/*
+ * isspace() in linux/ctype.h is expected by next_args() to filter
+ * out "space/lf/tab". While boot/ctype.h conflicts with linux/ctype.h,
+ * since isdigit() is implemented in both of them. Hence disable it
+ * here.
+ */
+#define BOOT_CTYPE_H
+
+/*
+ * _ctype[] in lib/ctype.c is needed by isspace() of linux/ctype.h.
+ * While both lib/ctype.c and lib/cmdline.c will bring EXPORT_SYMBOL
+ * which is meaningless and will cause compiling error in some cases.
+ * So do not include linux/export.h and define EXPORT_SYMBOL(sym)
+ * as empty.
+ */
+#define _LINUX_EXPORT_H
+#define EXPORT_SYMBOL(sym)
+
#include "misc.h"
#include "error.h"
-#include "../boot.h"
+#include "../string.h"
#include <generated/compile.h>
#include <linux/module.h>
#include <linux/uts.h>
#include <linux/utsname.h>
+#include <linux/ctype.h>
+#include <linux/efi.h>
#include <generated/utsrelease.h>
+#include <asm/efi.h>
+
+/* Macros used by the included decompressor code below. */
+#define STATIC
+#include <linux/decompress/mm.h>
+
+extern unsigned long get_cmd_line_ptr(void);
/* Simplified build-specific string for starting entropy. */
static const char build_str[] = UTS_RELEASE " (" LINUX_COMPILE_BY "@"
@@ -62,6 +90,11 @@ struct mem_vector {
static bool memmap_too_large;
+
+/* Store memory limit specified by "mem=nn[KMG]" or "memmap=nn[KMG]" */
+unsigned long long mem_limit = ULLONG_MAX;
+
+
enum mem_avoid_index {
MEM_AVOID_ZO_RANGE = 0,
MEM_AVOID_INITRD,
@@ -85,49 +118,14 @@ static bool mem_overlaps(struct mem_vector *one, struct mem_vector *two)
return true;
}
-/**
- * _memparse - Parse a string with mem suffixes into a number
- * @ptr: Where parse begins
- * @retptr: (output) Optional pointer to next char after parse completes
- *
- * Parses a string into a number. The number stored at @ptr is
- * potentially suffixed with K, M, G, T, P, E.
- */
-static unsigned long long _memparse(const char *ptr, char **retptr)
+char *skip_spaces(const char *str)
{
- char *endptr; /* Local pointer to end of parsed string */
-
- unsigned long long ret = simple_strtoull(ptr, &endptr, 0);
-
- switch (*endptr) {
- case 'E':
- case 'e':
- ret <<= 10;
- case 'P':
- case 'p':
- ret <<= 10;
- case 'T':
- case 't':
- ret <<= 10;
- case 'G':
- case 'g':
- ret <<= 10;
- case 'M':
- case 'm':
- ret <<= 10;
- case 'K':
- case 'k':
- ret <<= 10;
- endptr++;
- default:
- break;
- }
-
- if (retptr)
- *retptr = endptr;
-
- return ret;
+ while (isspace(*str))
+ ++str;
+ return (char *)str;
}
+#include "../../../../lib/ctype.c"
+#include "../../../../lib/cmdline.c"
static int
parse_memmap(char *p, unsigned long long *start, unsigned long long *size)
@@ -142,40 +140,41 @@ parse_memmap(char *p, unsigned long long *start, unsigned long long *size)
return -EINVAL;
oldp = p;
- *size = _memparse(p, &p);
+ *size = memparse(p, &p);
if (p == oldp)
return -EINVAL;
switch (*p) {
- case '@':
- /* Skip this region, usable */
- *start = 0;
- *size = 0;
- return 0;
case '#':
case '$':
case '!':
- *start = _memparse(p + 1, &p);
+ *start = memparse(p + 1, &p);
+ return 0;
+ case '@':
+ /* memmap=nn@ss specifies usable region, should be skipped */
+ *size = 0;
+ /* Fall through */
+ default:
+ /*
+ * If w/o offset, only size specified, memmap=nn[KMG] has the
+ * same behaviour as mem=nn[KMG]. It limits the max address
+ * system can use. Region above the limit should be avoided.
+ */
+ *start = 0;
return 0;
}
return -EINVAL;
}
-static void mem_avoid_memmap(void)
+static void mem_avoid_memmap(char *str)
{
- char arg[128];
+ static int i;
int rc;
- int i;
- char *str;
- /* See if we have any memmap areas */
- rc = cmdline_find_option("memmap", arg, sizeof(arg));
- if (rc <= 0)
+ if (i >= MAX_MEMMAP_REGIONS)
return;
- i = 0;
- str = arg;
while (str && (i < MAX_MEMMAP_REGIONS)) {
int rc;
unsigned long long start, size;
@@ -188,9 +187,14 @@ static void mem_avoid_memmap(void)
if (rc < 0)
break;
str = k;
- /* A usable region that should not be skipped */
- if (size == 0)
+
+ if (start == 0) {
+ /* Store the specified memory limit if size > 0 */
+ if (size > 0)
+ mem_limit = size;
+
continue;
+ }
mem_avoid[MEM_AVOID_MEMMAP_BEGIN + i].start = start;
mem_avoid[MEM_AVOID_MEMMAP_BEGIN + i].size = size;
@@ -202,6 +206,57 @@ static void mem_avoid_memmap(void)
memmap_too_large = true;
}
+static int handle_mem_memmap(void)
+{
+ char *args = (char *)get_cmd_line_ptr();
+ size_t len = strlen((char *)args);
+ char *tmp_cmdline;
+ char *param, *val;
+ u64 mem_size;
+
+ if (!strstr(args, "memmap=") && !strstr(args, "mem="))
+ return 0;
+
+ tmp_cmdline = malloc(len + 1);
+ if (!tmp_cmdline )
+ error("Failed to allocate space for tmp_cmdline");
+
+ memcpy(tmp_cmdline, args, len);
+ tmp_cmdline[len] = 0;
+ args = tmp_cmdline;
+
+ /* Chew leading spaces */
+ args = skip_spaces(args);
+
+ while (*args) {
+ args = next_arg(args, &param, &val);
+ /* Stop at -- */
+ if (!val && strcmp(param, "--") == 0) {
+ warn("Only '--' specified in cmdline");
+ free(tmp_cmdline);
+ return -1;
+ }
+
+ if (!strcmp(param, "memmap")) {
+ mem_avoid_memmap(val);
+ } else if (!strcmp(param, "mem")) {
+ char *p = val;
+
+ if (!strcmp(p, "nopentium"))
+ continue;
+ mem_size = memparse(p, &p);
+ if (mem_size == 0) {
+ free(tmp_cmdline);
+ return -EINVAL;
+ }
+ mem_limit = mem_size;
+ }
+ }
+
+ free(tmp_cmdline);
+ return 0;
+}
+
/*
* In theory, KASLR can put the kernel anywhere in the range of [16M, 64T).
* The mem_avoid array is used to store the ranges that need to be avoided
@@ -323,7 +378,7 @@ static void mem_avoid_init(unsigned long input, unsigned long input_size,
/* We don't need to set a mapping for setup_data. */
/* Mark the memmap regions we need to avoid */
- mem_avoid_memmap();
+ handle_mem_memmap();
#ifdef CONFIG_X86_VERBOSE_BOOTUP
/* Make sure video RAM can be used. */
@@ -426,28 +481,32 @@ static unsigned long slots_fetch_random(void)
return 0;
}
-static void process_e820_entry(struct boot_e820_entry *entry,
+static void process_mem_region(struct mem_vector *entry,
unsigned long minimum,
unsigned long image_size)
{
struct mem_vector region, overlap;
struct slot_area slot_area;
- unsigned long start_orig;
-
- /* Skip non-RAM entries. */
- if (entry->type != E820_TYPE_RAM)
- return;
+ unsigned long start_orig, end;
+ struct mem_vector cur_entry;
/* On 32-bit, ignore entries entirely above our maximum. */
- if (IS_ENABLED(CONFIG_X86_32) && entry->addr >= KERNEL_IMAGE_SIZE)
+ if (IS_ENABLED(CONFIG_X86_32) && entry->start >= KERNEL_IMAGE_SIZE)
return;
/* Ignore entries entirely below our minimum. */
- if (entry->addr + entry->size < minimum)
+ if (entry->start + entry->size < minimum)
+ return;
+
+ /* Ignore entries above memory limit */
+ end = min(entry->size + entry->start, mem_limit);
+ if (entry->start >= end)
return;
+ cur_entry.start = entry->start;
+ cur_entry.size = end - entry->start;
- region.start = entry->addr;
- region.size = entry->size;
+ region.start = cur_entry.start;
+ region.size = cur_entry.size;
/* Give up if slot area array is full. */
while (slot_area_index < MAX_SLOT_AREA) {
@@ -460,8 +519,8 @@ static void process_e820_entry(struct boot_e820_entry *entry,
/* Potentially raise address to meet alignment needs. */
region.start = ALIGN(region.start, CONFIG_PHYSICAL_ALIGN);
- /* Did we raise the address above this e820 region? */
- if (region.start > entry->addr + entry->size)
+ /* Did we raise the address above the passed in memory entry? */
+ if (region.start > cur_entry.start + cur_entry.size)
return;
/* Reduce size by any delta from the original address. */
@@ -501,31 +560,126 @@ static void process_e820_entry(struct boot_e820_entry *entry,
}
}
-static unsigned long find_random_phys_addr(unsigned long minimum,
- unsigned long image_size)
+#ifdef CONFIG_EFI
+/*
+ * Returns true if mirror region found (and must have been processed
+ * for slots adding)
+ */
+static bool
+process_efi_entries(unsigned long minimum, unsigned long image_size)
{
+ struct efi_info *e = &boot_params->efi_info;
+ bool efi_mirror_found = false;
+ struct mem_vector region;
+ efi_memory_desc_t *md;
+ unsigned long pmap;
+ char *signature;
+ u32 nr_desc;
int i;
- unsigned long addr;
- /* Check if we had too many memmaps. */
- if (memmap_too_large) {
- debug_putstr("Aborted e820 scan (more than 4 memmap= args)!\n");
- return 0;
+ signature = (char *)&e->efi_loader_signature;
+ if (strncmp(signature, EFI32_LOADER_SIGNATURE, 4) &&
+ strncmp(signature, EFI64_LOADER_SIGNATURE, 4))
+ return false;
+
+#ifdef CONFIG_X86_32
+ /* Can't handle data above 4GB at this time */
+ if (e->efi_memmap_hi) {
+ warn("EFI memmap is above 4GB, can't be handled now on x86_32. EFI should be disabled.\n");
+ return false;
}
+ pmap = e->efi_memmap;
+#else
+ pmap = (e->efi_memmap | ((__u64)e->efi_memmap_hi << 32));
+#endif
- /* Make sure minimum is aligned. */
- minimum = ALIGN(minimum, CONFIG_PHYSICAL_ALIGN);
+ nr_desc = e->efi_memmap_size / e->efi_memdesc_size;
+ for (i = 0; i < nr_desc; i++) {
+ md = efi_early_memdesc_ptr(pmap, e->efi_memdesc_size, i);
+ if (md->attribute & EFI_MEMORY_MORE_RELIABLE) {
+ efi_mirror_found = true;
+ break;
+ }
+ }
+
+ for (i = 0; i < nr_desc; i++) {
+ md = efi_early_memdesc_ptr(pmap, e->efi_memdesc_size, i);
+
+ /*
+ * Here we are more conservative in picking free memory than
+ * the EFI spec allows:
+ *
+ * According to the spec, EFI_BOOT_SERVICES_{CODE|DATA} are also
+ * free memory and thus available to place the kernel image into,
+ * but in practice there's firmware where using that memory leads
+ * to crashes.
+ *
+ * Only EFI_CONVENTIONAL_MEMORY is guaranteed to be free.
+ */
+ if (md->type != EFI_CONVENTIONAL_MEMORY)
+ continue;
+
+ if (efi_mirror_found &&
+ !(md->attribute & EFI_MEMORY_MORE_RELIABLE))
+ continue;
+
+ region.start = md->phys_addr;
+ region.size = md->num_pages << EFI_PAGE_SHIFT;
+ process_mem_region(&region, minimum, image_size);
+ if (slot_area_index == MAX_SLOT_AREA) {
+ debug_putstr("Aborted EFI scan (slot_areas full)!\n");
+ break;
+ }
+ }
+ return true;
+}
+#else
+static inline bool
+process_efi_entries(unsigned long minimum, unsigned long image_size)
+{
+ return false;
+}
+#endif
+
+static void process_e820_entries(unsigned long minimum,
+ unsigned long image_size)
+{
+ int i;
+ struct mem_vector region;
+ struct boot_e820_entry *entry;
/* Verify potential e820 positions, appending to slots list. */
for (i = 0; i < boot_params->e820_entries; i++) {
- process_e820_entry(&boot_params->e820_table[i], minimum,
- image_size);
+ entry = &boot_params->e820_table[i];
+ /* Skip non-RAM entries. */
+ if (entry->type != E820_TYPE_RAM)
+ continue;
+ region.start = entry->addr;
+ region.size = entry->size;
+ process_mem_region(&region, minimum, image_size);
if (slot_area_index == MAX_SLOT_AREA) {
debug_putstr("Aborted e820 scan (slot_areas full)!\n");
break;
}
}
+}
+
+static unsigned long find_random_phys_addr(unsigned long minimum,
+ unsigned long image_size)
+{
+ /* Check if we had too many memmaps. */
+ if (memmap_too_large) {
+ debug_putstr("Aborted memory entries scan (more than 4 memmap= args)!\n");
+ return 0;
+ }
+
+ /* Make sure minimum is aligned. */
+ minimum = ALIGN(minimum, CONFIG_PHYSICAL_ALIGN);
+
+ if (process_efi_entries(minimum, image_size))
+ return slots_fetch_random();
+ process_e820_entries(minimum, image_size);
return slots_fetch_random();
}
@@ -584,7 +738,7 @@ void choose_random_location(unsigned long input,
*/
min_addr = min(*output, 512UL << 20);
- /* Walk e820 and find a random address. */
+ /* Walk available memory entries to find a random address. */
random_addr = find_random_phys_addr(min_addr, output_size);
if (!random_addr) {
warn("Physical KASLR disabled: no suitable memory region!");
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index 00241c815524..c14217cd0155 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -116,8 +116,7 @@ void __putstr(const char *s)
}
}
- if (boot_params->screen_info.orig_video_mode == 0 &&
- lines == 0 && cols == 0)
+ if (lines == 0 || cols == 0)
return;
x = boot_params->screen_info.orig_x;
@@ -411,3 +410,8 @@ asmlinkage __visible void *extract_kernel(void *rmode, memptr heap,
debug_putstr("done.\nBooting the kernel.\n");
return output;
}
+
+void fortify_panic(const char *name)
+{
+ error("detected buffer overflow");
+}
diff --git a/arch/x86/boot/compressed/pagetable.c b/arch/x86/boot/compressed/pagetable.c
index 1d78f1739087..f1aa43854bed 100644
--- a/arch/x86/boot/compressed/pagetable.c
+++ b/arch/x86/boot/compressed/pagetable.c
@@ -15,6 +15,13 @@
#define __pa(x) ((unsigned long)(x))
#define __va(x) ((void *)((unsigned long)(x)))
+/*
+ * The pgtable.h and mm/ident_map.c includes make use of the SME related
+ * information which is not used in the compressed image support. Un-define
+ * the SME support to avoid any compile and link errors.
+ */
+#undef CONFIG_AMD_MEM_ENCRYPT
+
#include "misc.h"
/* These actually do the work of building the kernel identity maps. */
@@ -63,7 +70,7 @@ static void *alloc_pgt_page(void *context)
static struct alloc_pgt_data pgt_data;
/* The top level page table entry pointer. */
-static unsigned long level4p;
+static unsigned long top_level_pgt;
/*
* Mapping information structure passed to kernel_ident_mapping_init().
@@ -91,9 +98,15 @@ void initialize_identity_maps(void)
* If we came here via startup_32(), cr3 will be _pgtable already
* and we must append to the existing area instead of entirely
* overwriting it.
+ *
+ * With 5-level paging, we use '_pgtable' to allocate the p4d page table,
+ * the top-level page table is allocated separately.
+ *
+ * p4d_offset(top_level_pgt, 0) would cover both the 4- and 5-level
+ * cases. On 4-level paging it's equal to 'top_level_pgt'.
*/
- level4p = read_cr3();
- if (level4p == (unsigned long)_pgtable) {
+ top_level_pgt = read_cr3_pa();
+ if (p4d_offset((pgd_t *)top_level_pgt, 0) == (p4d_t *)_pgtable) {
debug_putstr("booted via startup_32()\n");
pgt_data.pgt_buf = _pgtable + BOOT_INIT_PGT_SIZE;
pgt_data.pgt_buf_size = BOOT_PGT_SIZE - BOOT_INIT_PGT_SIZE;
@@ -103,7 +116,7 @@ void initialize_identity_maps(void)
pgt_data.pgt_buf = _pgtable;
pgt_data.pgt_buf_size = BOOT_PGT_SIZE;
memset(pgt_data.pgt_buf, 0, pgt_data.pgt_buf_size);
- level4p = (unsigned long)alloc_pgt_page(&pgt_data);
+ top_level_pgt = (unsigned long)alloc_pgt_page(&pgt_data);
}
}
@@ -123,7 +136,7 @@ void add_identity_map(unsigned long start, unsigned long size)
return;
/* Build the mapping. */
- kernel_ident_mapping_init(&mapping_info, (pgd_t *)level4p,
+ kernel_ident_mapping_init(&mapping_info, (pgd_t *)top_level_pgt,
start, end);
}
@@ -134,5 +147,5 @@ void add_identity_map(unsigned long start, unsigned long size)
*/
void finalize_identity_maps(void)
{
- write_cr3(level4p);
+ write_cr3(top_level_pgt);
}
diff --git a/arch/x86/boot/copy.S b/arch/x86/boot/copy.S
index 1eb7d298b47d..15d9f74b0008 100644
--- a/arch/x86/boot/copy.S
+++ b/arch/x86/boot/copy.S
@@ -65,23 +65,3 @@ GLOBAL(copy_to_fs)
popw %es
retl
ENDPROC(copy_to_fs)
-
-#if 0 /* Not currently used, but can be enabled as needed */
-GLOBAL(copy_from_gs)
- pushw %ds
- pushw %gs
- popw %ds
- calll memcpy
- popw %ds
- retl
-ENDPROC(copy_from_gs)
-
-GLOBAL(copy_to_gs)
- pushw %es
- pushw %gs
- popw %es
- calll memcpy
- popw %es
- retl
-ENDPROC(copy_to_gs)
-#endif
diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
index 2ed8f0c25def..1bb08ecffd24 100644
--- a/arch/x86/boot/header.S
+++ b/arch/x86/boot/header.S
@@ -520,8 +520,14 @@ pref_address: .quad LOAD_PHYSICAL_ADDR # preferred load addr
# the description in lib/decompressor_xxx.c for specific information.
#
# extra_bytes = (uncompressed_size >> 12) + 65536 + 128
+#
+# LZ4 is even worse: data that cannot be further compressed grows by 0.4%,
+# or one byte per 256 bytes. OTOH, we can safely get rid of the +128 as
+# the size-dependent part now grows so fast.
+#
+# extra_bytes = (uncompressed_size >> 8) + 65536
-#define ZO_z_extra_bytes ((ZO_z_output_len >> 12) + 65536 + 128)
+#define ZO_z_extra_bytes ((ZO_z_output_len >> 8) + 65536)
#if ZO_z_output_len > ZO_z_input_len
# define ZO_z_extract_offset (ZO_z_output_len + ZO_z_extra_bytes - \
ZO_z_input_len)
diff --git a/arch/x86/boot/string.c b/arch/x86/boot/string.c
index 5457b02fc050..16f49123d747 100644
--- a/arch/x86/boot/string.c
+++ b/arch/x86/boot/string.c
@@ -16,6 +16,15 @@
#include "ctype.h"
#include "string.h"
+/*
+ * Undef these macros so that the functions that we provide
+ * here will have the correct names regardless of how string.h
+ * may have chosen to #define them.
+ */
+#undef memcpy
+#undef memset
+#undef memcmp
+
int memcmp(const void *s1, const void *s2, size_t len)
{
bool diff;
@@ -122,6 +131,14 @@ unsigned long long simple_strtoull(const char *cp, char **endp, unsigned int bas
return result;
}
+long simple_strtol(const char *cp, char **endp, unsigned int base)
+{
+ if (*cp == '-')
+ return -simple_strtoull(cp + 1, endp, base);
+
+ return simple_strtoull(cp, endp, base);
+}
+
/**
* strlen - Find the length of a string
* @s: The string to be sized
diff --git a/arch/x86/boot/string.h b/arch/x86/boot/string.h
index 113588ddb43f..f274a50db5fa 100644
--- a/arch/x86/boot/string.h
+++ b/arch/x86/boot/string.h
@@ -22,6 +22,7 @@ extern int strcmp(const char *str1, const char *str2);
extern int strncmp(const char *cs, const char *ct, size_t count);
extern size_t strlen(const char *s);
extern char *strstr(const char *s1, const char *s2);
+extern char *strchr(const char *s, int c);
extern size_t strnlen(const char *s, size_t maxlen);
extern unsigned int atou(const char *s);
extern unsigned long long simple_strtoull(const char *cp, char **endp,
diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig
index 6cf79e1a6830..0eb9f92f3717 100644
--- a/arch/x86/configs/i386_defconfig
+++ b/arch/x86/configs/i386_defconfig
@@ -1,5 +1,4 @@
# CONFIG_64BIT is not set
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -125,7 +124,6 @@ CONFIG_NF_CONNTRACK_IPV4=y
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
-CONFIG_IP_NF_TARGET_ULOG=y
CONFIG_NF_NAT=y
CONFIG_IP_NF_TARGET_MASQUERADE=y
CONFIG_IP_NF_MANGLE=y
@@ -255,7 +253,6 @@ CONFIG_USB_OHCI_HCD=y
CONFIG_USB_UHCI_HCD=y
CONFIG_USB_PRINTER=y
CONFIG_USB_STORAGE=y
-CONFIG_USB_LIBUSUAL=y
CONFIG_EDAC=y
CONFIG_RTC_CLASS=y
# CONFIG_RTC_HCTOSYS is not set
diff --git a/arch/x86/configs/tiny.config b/arch/x86/configs/tiny.config
index 4b429df40d7a..550cd5012b73 100644
--- a/arch/x86/configs/tiny.config
+++ b/arch/x86/configs/tiny.config
@@ -1,3 +1,5 @@
CONFIG_NOHIGHMEM=y
# CONFIG_HIGHMEM4G is not set
# CONFIG_HIGHMEM64G is not set
+CONFIG_GUESS_UNWINDER=y
+# CONFIG_FRAME_POINTER_UNWINDER is not set
diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig
index de45f57b410d..4a4b16e56d35 100644
--- a/arch/x86/configs/x86_64_defconfig
+++ b/arch/x86/configs/x86_64_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
@@ -124,7 +123,6 @@ CONFIG_NF_CONNTRACK_IPV4=y
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
-CONFIG_IP_NF_TARGET_ULOG=y
CONFIG_NF_NAT=y
CONFIG_IP_NF_TARGET_MASQUERADE=y
CONFIG_IP_NF_MANGLE=y
@@ -251,7 +249,6 @@ CONFIG_USB_OHCI_HCD=y
CONFIG_USB_UHCI_HCD=y
CONFIG_USB_PRINTER=y
CONFIG_USB_STORAGE=y
-CONFIG_USB_LIBUSUAL=y
CONFIG_EDAC=y
CONFIG_RTC_CLASS=y
# CONFIG_RTC_HCTOSYS is not set
diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index 34b3fa2889d1..9e32d40d71bd 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -2,6 +2,8 @@
# Arch-specific CryptoAPI modules.
#
+OBJECT_FILES_NON_STANDARD := y
+
avx_supported := $(call as-instr,vpxor %xmm0$(comma)%xmm0$(comma)%xmm0,yes,no)
avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\
$(comma)4)$(comma)%ymm2,yes,no)
diff --git a/arch/x86/crypto/aes-x86_64-asm_64.S b/arch/x86/crypto/aes-x86_64-asm_64.S
index 910565547163..8739cf7795de 100644
--- a/arch/x86/crypto/aes-x86_64-asm_64.S
+++ b/arch/x86/crypto/aes-x86_64-asm_64.S
@@ -42,17 +42,15 @@
#define R5E %esi
#define R6 %rdi
#define R6E %edi
-#define R7 %rbp
-#define R7E %ebp
+#define R7 %r9 /* don't use %rbp; it breaks stack traces */
+#define R7E %r9d
#define R8 %r8
-#define R9 %r9
#define R10 %r10
#define R11 %r11
-#define prologue(FUNC,KEY,B128,B192,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11) \
+#define prologue(FUNC,KEY,B128,B192,r1,r2,r5,r6,r7,r8,r9,r10,r11) \
ENTRY(FUNC); \
movq r1,r2; \
- movq r3,r4; \
leaq KEY+48(r8),r9; \
movq r10,r11; \
movl (r7),r5 ## E; \
@@ -70,9 +68,8 @@
je B192; \
leaq 32(r9),r9;
-#define epilogue(FUNC,r1,r2,r3,r4,r5,r6,r7,r8,r9) \
+#define epilogue(FUNC,r1,r2,r5,r6,r7,r8,r9) \
movq r1,r2; \
- movq r3,r4; \
movl r5 ## E,(r9); \
movl r6 ## E,4(r9); \
movl r7 ## E,8(r9); \
@@ -88,12 +85,12 @@
movl TAB(,r6,4),r6 ## E; \
roll $16,r2 ## E; \
shrl $16,r4 ## E; \
- movzbl r4 ## H,r7 ## E; \
- movzbl r4 ## L,r4 ## E; \
+ movzbl r4 ## L,r7 ## E; \
+ movzbl r4 ## H,r4 ## E; \
xorl OFFSET(r8),ra ## E; \
xorl OFFSET+4(r8),rb ## E; \
- xorl TAB+3072(,r7,4),r5 ## E;\
- xorl TAB+2048(,r4,4),r6 ## E;\
+ xorl TAB+3072(,r4,4),r5 ## E;\
+ xorl TAB+2048(,r7,4),r6 ## E;\
movzbl r1 ## L,r7 ## E; \
movzbl r1 ## H,r4 ## E; \
movl TAB+1024(,r4,4),r4 ## E;\
@@ -101,19 +98,19 @@
roll $16,r1 ## E; \
shrl $16,r3 ## E; \
xorl TAB(,r7,4),r5 ## E; \
- movzbl r3 ## H,r7 ## E; \
- movzbl r3 ## L,r3 ## E; \
- xorl TAB+3072(,r7,4),r4 ## E;\
- xorl TAB+2048(,r3,4),r5 ## E;\
- movzbl r1 ## H,r7 ## E; \
- movzbl r1 ## L,r3 ## E; \
+ movzbl r3 ## L,r7 ## E; \
+ movzbl r3 ## H,r3 ## E; \
+ xorl TAB+3072(,r3,4),r4 ## E;\
+ xorl TAB+2048(,r7,4),r5 ## E;\
+ movzbl r1 ## L,r7 ## E; \
+ movzbl r1 ## H,r3 ## E; \
shrl $16,r1 ## E; \
- xorl TAB+3072(,r7,4),r6 ## E;\
- movl TAB+2048(,r3,4),r3 ## E;\
- movzbl r1 ## H,r7 ## E; \
- movzbl r1 ## L,r1 ## E; \
- xorl TAB+1024(,r7,4),r6 ## E;\
- xorl TAB(,r1,4),r3 ## E; \
+ xorl TAB+3072(,r3,4),r6 ## E;\
+ movl TAB+2048(,r7,4),r3 ## E;\
+ movzbl r1 ## L,r7 ## E; \
+ movzbl r1 ## H,r1 ## E; \
+ xorl TAB+1024(,r1,4),r6 ## E;\
+ xorl TAB(,r7,4),r3 ## E; \
movzbl r2 ## H,r1 ## E; \
movzbl r2 ## L,r7 ## E; \
shrl $16,r2 ## E; \
@@ -131,9 +128,9 @@
movl r4 ## E,r2 ## E;
#define entry(FUNC,KEY,B128,B192) \
- prologue(FUNC,KEY,B128,B192,R2,R8,R7,R9,R1,R3,R4,R6,R10,R5,R11)
+ prologue(FUNC,KEY,B128,B192,R2,R8,R1,R3,R4,R6,R10,R5,R11)
-#define return(FUNC) epilogue(FUNC,R8,R2,R9,R7,R5,R6,R3,R4,R11)
+#define return(FUNC) epilogue(FUNC,R8,R2,R5,R6,R3,R4,R11)
#define encrypt_round(TAB,OFFSET) \
round(TAB,OFFSET,R1,R2,R3,R4,R5,R6,R7,R10,R5,R6,R3,R4) \
diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index 3c465184ff8a..16627fec80b2 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -89,6 +89,29 @@ SHIFT_MASK: .octa 0x0f0e0d0c0b0a09080706050403020100
ALL_F: .octa 0xffffffffffffffffffffffffffffffff
.octa 0x00000000000000000000000000000000
+.section .rodata
+.align 16
+.type aad_shift_arr, @object
+.size aad_shift_arr, 272
+aad_shift_arr:
+ .octa 0xffffffffffffffffffffffffffffffff
+ .octa 0xffffffffffffffffffffffffffffff0C
+ .octa 0xffffffffffffffffffffffffffff0D0C
+ .octa 0xffffffffffffffffffffffffff0E0D0C
+ .octa 0xffffffffffffffffffffffff0F0E0D0C
+ .octa 0xffffffffffffffffffffff0C0B0A0908
+ .octa 0xffffffffffffffffffff0D0C0B0A0908
+ .octa 0xffffffffffffffffff0E0D0C0B0A0908
+ .octa 0xffffffffffffffff0F0E0D0C0B0A0908
+ .octa 0xffffffffffffff0C0B0A090807060504
+ .octa 0xffffffffffff0D0C0B0A090807060504
+ .octa 0xffffffffff0E0D0C0B0A090807060504
+ .octa 0xffffffff0F0E0D0C0B0A090807060504
+ .octa 0xffffff0C0B0A09080706050403020100
+ .octa 0xffff0D0C0B0A09080706050403020100
+ .octa 0xff0E0D0C0B0A09080706050403020100
+ .octa 0x0F0E0D0C0B0A09080706050403020100
+
.text
@@ -252,32 +275,66 @@ XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation
mov arg8, %r12 # %r12 = aadLen
mov %r12, %r11
pxor %xmm\i, %xmm\i
+ pxor \XMM2, \XMM2
-_get_AAD_loop\num_initial_blocks\operation:
- movd (%r10), \TMP1
- pslldq $12, \TMP1
- psrldq $4, %xmm\i
+ cmp $16, %r11
+ jl _get_AAD_rest8\num_initial_blocks\operation
+_get_AAD_blocks\num_initial_blocks\operation:
+ movdqu (%r10), %xmm\i
+ PSHUFB_XMM %xmm14, %xmm\i # byte-reflect the AAD data
+ pxor %xmm\i, \XMM2
+ GHASH_MUL \XMM2, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
+ add $16, %r10
+ sub $16, %r12
+ sub $16, %r11
+ cmp $16, %r11
+ jge _get_AAD_blocks\num_initial_blocks\operation
+
+ movdqu \XMM2, %xmm\i
+ cmp $0, %r11
+ je _get_AAD_done\num_initial_blocks\operation
+
+ pxor %xmm\i,%xmm\i
+
+ /* read the last <16B of AAD. since we have at least 4B of
+ data right after the AAD (the ICV, and maybe some CT), we can
+ read 4B/8B blocks safely, and then get rid of the extra stuff */
+_get_AAD_rest8\num_initial_blocks\operation:
+ cmp $4, %r11
+ jle _get_AAD_rest4\num_initial_blocks\operation
+ movq (%r10), \TMP1
+ add $8, %r10
+ sub $8, %r11
+ pslldq $8, \TMP1
+ psrldq $8, %xmm\i
pxor \TMP1, %xmm\i
+ jmp _get_AAD_rest8\num_initial_blocks\operation
+_get_AAD_rest4\num_initial_blocks\operation:
+ cmp $0, %r11
+ jle _get_AAD_rest0\num_initial_blocks\operation
+ mov (%r10), %eax
+ movq %rax, \TMP1
add $4, %r10
- sub $4, %r12
- jne _get_AAD_loop\num_initial_blocks\operation
-
- cmp $16, %r11
- je _get_AAD_loop2_done\num_initial_blocks\operation
-
- mov $16, %r12
-_get_AAD_loop2\num_initial_blocks\operation:
+ sub $4, %r10
+ pslldq $12, \TMP1
psrldq $4, %xmm\i
- sub $4, %r12
- cmp %r11, %r12
- jne _get_AAD_loop2\num_initial_blocks\operation
-
-_get_AAD_loop2_done\num_initial_blocks\operation:
+ pxor \TMP1, %xmm\i
+_get_AAD_rest0\num_initial_blocks\operation:
+ /* finalize: shift out the extra bytes we read, and align
+ left. since pslldq can only shift by an immediate, we use
+ vpshufb and an array of shuffle masks */
+ movq %r12, %r11
+ salq $4, %r11
+ movdqu aad_shift_arr(%r11), \TMP1
+ PSHUFB_XMM \TMP1, %xmm\i
+_get_AAD_rest_final\num_initial_blocks\operation:
PSHUFB_XMM %xmm14, %xmm\i # byte-reflect the AAD data
+ pxor \XMM2, %xmm\i
+ GHASH_MUL %xmm\i, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
+_get_AAD_done\num_initial_blocks\operation:
xor %r11, %r11 # initialise the data pointer offset as zero
-
- # start AES for num_initial_blocks blocks
+ # start AES for num_initial_blocks blocks
mov %arg5, %rax # %rax = *Y0
movdqu (%rax), \XMM0 # XMM0 = Y0
@@ -322,7 +379,7 @@ aes_loop_initial_dec\num_initial_blocks:
# prepare plaintext/ciphertext for GHASH computation
.endr
.endif
- GHASH_MUL %xmm\i, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
+
# apply GHASH on num_initial_blocks blocks
.if \i == 5
@@ -477,28 +534,66 @@ XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation
mov arg8, %r12 # %r12 = aadLen
mov %r12, %r11
pxor %xmm\i, %xmm\i
-_get_AAD_loop\num_initial_blocks\operation:
- movd (%r10), \TMP1
- pslldq $12, \TMP1
- psrldq $4, %xmm\i
+ pxor \XMM2, \XMM2
+
+ cmp $16, %r11
+ jl _get_AAD_rest8\num_initial_blocks\operation
+_get_AAD_blocks\num_initial_blocks\operation:
+ movdqu (%r10), %xmm\i
+ PSHUFB_XMM %xmm14, %xmm\i # byte-reflect the AAD data
+ pxor %xmm\i, \XMM2
+ GHASH_MUL \XMM2, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
+ add $16, %r10
+ sub $16, %r12
+ sub $16, %r11
+ cmp $16, %r11
+ jge _get_AAD_blocks\num_initial_blocks\operation
+
+ movdqu \XMM2, %xmm\i
+ cmp $0, %r11
+ je _get_AAD_done\num_initial_blocks\operation
+
+ pxor %xmm\i,%xmm\i
+
+ /* read the last <16B of AAD. since we have at least 4B of
+ data right after the AAD (the ICV, and maybe some PT), we can
+ read 4B/8B blocks safely, and then get rid of the extra stuff */
+_get_AAD_rest8\num_initial_blocks\operation:
+ cmp $4, %r11
+ jle _get_AAD_rest4\num_initial_blocks\operation
+ movq (%r10), \TMP1
+ add $8, %r10
+ sub $8, %r11
+ pslldq $8, \TMP1
+ psrldq $8, %xmm\i
pxor \TMP1, %xmm\i
+ jmp _get_AAD_rest8\num_initial_blocks\operation
+_get_AAD_rest4\num_initial_blocks\operation:
+ cmp $0, %r11
+ jle _get_AAD_rest0\num_initial_blocks\operation
+ mov (%r10), %eax
+ movq %rax, \TMP1
add $4, %r10
- sub $4, %r12
- jne _get_AAD_loop\num_initial_blocks\operation
- cmp $16, %r11
- je _get_AAD_loop2_done\num_initial_blocks\operation
- mov $16, %r12
-_get_AAD_loop2\num_initial_blocks\operation:
+ sub $4, %r10
+ pslldq $12, \TMP1
psrldq $4, %xmm\i
- sub $4, %r12
- cmp %r11, %r12
- jne _get_AAD_loop2\num_initial_blocks\operation
-_get_AAD_loop2_done\num_initial_blocks\operation:
+ pxor \TMP1, %xmm\i
+_get_AAD_rest0\num_initial_blocks\operation:
+ /* finalize: shift out the extra bytes we read, and align
+ left. since pslldq can only shift by an immediate, we use
+ vpshufb and an array of shuffle masks */
+ movq %r12, %r11
+ salq $4, %r11
+ movdqu aad_shift_arr(%r11), \TMP1
+ PSHUFB_XMM \TMP1, %xmm\i
+_get_AAD_rest_final\num_initial_blocks\operation:
PSHUFB_XMM %xmm14, %xmm\i # byte-reflect the AAD data
+ pxor \XMM2, %xmm\i
+ GHASH_MUL %xmm\i, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
+_get_AAD_done\num_initial_blocks\operation:
xor %r11, %r11 # initialise the data pointer offset as zero
-
- # start AES for num_initial_blocks blocks
+ # start AES for num_initial_blocks blocks
mov %arg5, %rax # %rax = *Y0
movdqu (%rax), \XMM0 # XMM0 = Y0
@@ -543,7 +638,7 @@ aes_loop_initial_enc\num_initial_blocks:
# prepare plaintext/ciphertext for GHASH computation
.endr
.endif
- GHASH_MUL %xmm\i, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
+
# apply GHASH on num_initial_blocks blocks
.if \i == 5
@@ -1454,18 +1549,35 @@ _return_T_decrypt:
mov arg10, %r11 # %r11 = auth_tag_len
cmp $16, %r11
je _T_16_decrypt
- cmp $12, %r11
- je _T_12_decrypt
+ cmp $8, %r11
+ jl _T_4_decrypt
_T_8_decrypt:
MOVQ_R64_XMM %xmm0, %rax
mov %rax, (%r10)
- jmp _return_T_done_decrypt
-_T_12_decrypt:
- MOVQ_R64_XMM %xmm0, %rax
- mov %rax, (%r10)
+ add $8, %r10
+ sub $8, %r11
psrldq $8, %xmm0
+ cmp $0, %r11
+ je _return_T_done_decrypt
+_T_4_decrypt:
+ movd %xmm0, %eax
+ mov %eax, (%r10)
+ add $4, %r10
+ sub $4, %r11
+ psrldq $4, %xmm0
+ cmp $0, %r11
+ je _return_T_done_decrypt
+_T_123_decrypt:
movd %xmm0, %eax
- mov %eax, 8(%r10)
+ cmp $2, %r11
+ jl _T_1_decrypt
+ mov %ax, (%r10)
+ cmp $2, %r11
+ je _return_T_done_decrypt
+ add $2, %r10
+ sar $16, %eax
+_T_1_decrypt:
+ mov %al, (%r10)
jmp _return_T_done_decrypt
_T_16_decrypt:
movdqu %xmm0, (%r10)
@@ -1718,18 +1830,35 @@ _return_T_encrypt:
mov arg10, %r11 # %r11 = auth_tag_len
cmp $16, %r11
je _T_16_encrypt
- cmp $12, %r11
- je _T_12_encrypt
+ cmp $8, %r11
+ jl _T_4_encrypt
_T_8_encrypt:
MOVQ_R64_XMM %xmm0, %rax
mov %rax, (%r10)
- jmp _return_T_done_encrypt
-_T_12_encrypt:
- MOVQ_R64_XMM %xmm0, %rax
- mov %rax, (%r10)
+ add $8, %r10
+ sub $8, %r11
psrldq $8, %xmm0
+ cmp $0, %r11
+ je _return_T_done_encrypt
+_T_4_encrypt:
+ movd %xmm0, %eax
+ mov %eax, (%r10)
+ add $4, %r10
+ sub $4, %r11
+ psrldq $4, %xmm0
+ cmp $0, %r11
+ je _return_T_done_encrypt
+_T_123_encrypt:
movd %xmm0, %eax
- mov %eax, 8(%r10)
+ cmp $2, %r11
+ jl _T_1_encrypt
+ mov %ax, (%r10)
+ cmp $2, %r11
+ je _return_T_done_encrypt
+ add $2, %r10
+ sar $16, %eax
+_T_1_encrypt:
+ mov %al, (%r10)
jmp _return_T_done_encrypt
_T_16_encrypt:
movdqu %xmm0, (%r10)
diff --git a/arch/x86/crypto/aesni-intel_avx-x86_64.S b/arch/x86/crypto/aesni-intel_avx-x86_64.S
index d664382c6e56..faecb1518bf8 100644
--- a/arch/x86/crypto/aesni-intel_avx-x86_64.S
+++ b/arch/x86/crypto/aesni-intel_avx-x86_64.S
@@ -155,6 +155,30 @@ SHIFT_MASK: .octa 0x0f0e0d0c0b0a09080706050403020100
ALL_F: .octa 0xffffffffffffffffffffffffffffffff
.octa 0x00000000000000000000000000000000
+.section .rodata
+.align 16
+.type aad_shift_arr, @object
+.size aad_shift_arr, 272
+aad_shift_arr:
+ .octa 0xffffffffffffffffffffffffffffffff
+ .octa 0xffffffffffffffffffffffffffffff0C
+ .octa 0xffffffffffffffffffffffffffff0D0C
+ .octa 0xffffffffffffffffffffffffff0E0D0C
+ .octa 0xffffffffffffffffffffffff0F0E0D0C
+ .octa 0xffffffffffffffffffffff0C0B0A0908
+ .octa 0xffffffffffffffffffff0D0C0B0A0908
+ .octa 0xffffffffffffffffff0E0D0C0B0A0908
+ .octa 0xffffffffffffffff0F0E0D0C0B0A0908
+ .octa 0xffffffffffffff0C0B0A090807060504
+ .octa 0xffffffffffff0D0C0B0A090807060504
+ .octa 0xffffffffff0E0D0C0B0A090807060504
+ .octa 0xffffffff0F0E0D0C0B0A090807060504
+ .octa 0xffffff0C0B0A09080706050403020100
+ .octa 0xffff0D0C0B0A09080706050403020100
+ .octa 0xff0E0D0C0B0A09080706050403020100
+ .octa 0x0F0E0D0C0B0A09080706050403020100
+
+
.text
@@ -372,41 +396,72 @@ VARIABLE_OFFSET = 16*8
.macro INITIAL_BLOCKS_AVX num_initial_blocks T1 T2 T3 T4 T5 CTR XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 T6 T_key ENC_DEC
i = (8-\num_initial_blocks)
+ j = 0
setreg
- mov arg6, %r10 # r10 = AAD
- mov arg7, %r12 # r12 = aadLen
-
-
- mov %r12, %r11
-
- vpxor reg_i, reg_i, reg_i
-_get_AAD_loop\@:
- vmovd (%r10), \T1
- vpslldq $12, \T1, \T1
- vpsrldq $4, reg_i, reg_i
- vpxor \T1, reg_i, reg_i
-
- add $4, %r10
- sub $4, %r12
- jg _get_AAD_loop\@
-
-
- cmp $16, %r11
- je _get_AAD_loop2_done\@
- mov $16, %r12
-
-_get_AAD_loop2\@:
- vpsrldq $4, reg_i, reg_i
- sub $4, %r12
- cmp %r11, %r12
- jg _get_AAD_loop2\@
-
-_get_AAD_loop2_done\@:
-
- #byte-reflect the AAD data
- vpshufb SHUF_MASK(%rip), reg_i, reg_i
-
+ mov arg6, %r10 # r10 = AAD
+ mov arg7, %r12 # r12 = aadLen
+
+
+ mov %r12, %r11
+
+ vpxor reg_j, reg_j, reg_j
+ vpxor reg_i, reg_i, reg_i
+ cmp $16, %r11
+ jl _get_AAD_rest8\@
+_get_AAD_blocks\@:
+ vmovdqu (%r10), reg_i
+ vpshufb SHUF_MASK(%rip), reg_i, reg_i
+ vpxor reg_i, reg_j, reg_j
+ GHASH_MUL_AVX reg_j, \T2, \T1, \T3, \T4, \T5, \T6
+ add $16, %r10
+ sub $16, %r12
+ sub $16, %r11
+ cmp $16, %r11
+ jge _get_AAD_blocks\@
+ vmovdqu reg_j, reg_i
+ cmp $0, %r11
+ je _get_AAD_done\@
+
+ vpxor reg_i, reg_i, reg_i
+
+ /* read the last <16B of AAD. since we have at least 4B of
+ data right after the AAD (the ICV, and maybe some CT), we can
+ read 4B/8B blocks safely, and then get rid of the extra stuff */
+_get_AAD_rest8\@:
+ cmp $4, %r11
+ jle _get_AAD_rest4\@
+ movq (%r10), \T1
+ add $8, %r10
+ sub $8, %r11
+ vpslldq $8, \T1, \T1
+ vpsrldq $8, reg_i, reg_i
+ vpxor \T1, reg_i, reg_i
+ jmp _get_AAD_rest8\@
+_get_AAD_rest4\@:
+ cmp $0, %r11
+ jle _get_AAD_rest0\@
+ mov (%r10), %eax
+ movq %rax, \T1
+ add $4, %r10
+ sub $4, %r11
+ vpslldq $12, \T1, \T1
+ vpsrldq $4, reg_i, reg_i
+ vpxor \T1, reg_i, reg_i
+_get_AAD_rest0\@:
+ /* finalize: shift out the extra bytes we read, and align
+ left. since pslldq can only shift by an immediate, we use
+ vpshufb and an array of shuffle masks */
+ movq %r12, %r11
+ salq $4, %r11
+ movdqu aad_shift_arr(%r11), \T1
+ vpshufb \T1, reg_i, reg_i
+_get_AAD_rest_final\@:
+ vpshufb SHUF_MASK(%rip), reg_i, reg_i
+ vpxor reg_j, reg_i, reg_i
+ GHASH_MUL_AVX reg_i, \T2, \T1, \T3, \T4, \T5, \T6
+
+_get_AAD_done\@:
# initialize the data pointer offset as zero
xor %r11, %r11
@@ -480,7 +535,6 @@ _get_AAD_loop2_done\@:
i = (8-\num_initial_blocks)
j = (9-\num_initial_blocks)
setreg
- GHASH_MUL_AVX reg_i, \T2, \T1, \T3, \T4, \T5, \T6
.rep \num_initial_blocks
vpxor reg_i, reg_j, reg_j
@@ -1427,19 +1481,36 @@ _return_T\@:
cmp $16, %r11
je _T_16\@
- cmp $12, %r11
- je _T_12\@
+ cmp $8, %r11
+ jl _T_4\@
_T_8\@:
vmovq %xmm9, %rax
mov %rax, (%r10)
- jmp _return_T_done\@
-_T_12\@:
- vmovq %xmm9, %rax
- mov %rax, (%r10)
+ add $8, %r10
+ sub $8, %r11
vpsrldq $8, %xmm9, %xmm9
+ cmp $0, %r11
+ je _return_T_done\@
+_T_4\@:
vmovd %xmm9, %eax
- mov %eax, 8(%r10)
+ mov %eax, (%r10)
+ add $4, %r10
+ sub $4, %r11
+ vpsrldq $4, %xmm9, %xmm9
+ cmp $0, %r11
+ je _return_T_done\@
+_T_123\@:
+ vmovd %xmm9, %eax
+ cmp $2, %r11
+ jl _T_1\@
+ mov %ax, (%r10)
+ cmp $2, %r11
+ je _return_T_done\@
+ add $2, %r10
+ sar $16, %eax
+_T_1\@:
+ mov %al, (%r10)
jmp _return_T_done\@
_T_16\@:
@@ -1631,41 +1702,73 @@ ENDPROC(aesni_gcm_dec_avx_gen2)
.macro INITIAL_BLOCKS_AVX2 num_initial_blocks T1 T2 T3 T4 T5 CTR XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 T6 T_key ENC_DEC VER
i = (8-\num_initial_blocks)
+ j = 0
setreg
- mov arg6, %r10 # r10 = AAD
- mov arg7, %r12 # r12 = aadLen
-
-
- mov %r12, %r11
-
- vpxor reg_i, reg_i, reg_i
-_get_AAD_loop\@:
- vmovd (%r10), \T1
- vpslldq $12, \T1, \T1
- vpsrldq $4, reg_i, reg_i
- vpxor \T1, reg_i, reg_i
-
- add $4, %r10
- sub $4, %r12
- jg _get_AAD_loop\@
-
-
- cmp $16, %r11
- je _get_AAD_loop2_done\@
- mov $16, %r12
-
-_get_AAD_loop2\@:
- vpsrldq $4, reg_i, reg_i
- sub $4, %r12
- cmp %r11, %r12
- jg _get_AAD_loop2\@
-
-_get_AAD_loop2_done\@:
-
- #byte-reflect the AAD data
- vpshufb SHUF_MASK(%rip), reg_i, reg_i
-
+ mov arg6, %r10 # r10 = AAD
+ mov arg7, %r12 # r12 = aadLen
+
+
+ mov %r12, %r11
+
+ vpxor reg_j, reg_j, reg_j
+ vpxor reg_i, reg_i, reg_i
+
+ cmp $16, %r11
+ jl _get_AAD_rest8\@
+_get_AAD_blocks\@:
+ vmovdqu (%r10), reg_i
+ vpshufb SHUF_MASK(%rip), reg_i, reg_i
+ vpxor reg_i, reg_j, reg_j
+ GHASH_MUL_AVX2 reg_j, \T2, \T1, \T3, \T4, \T5, \T6
+ add $16, %r10
+ sub $16, %r12
+ sub $16, %r11
+ cmp $16, %r11
+ jge _get_AAD_blocks\@
+ vmovdqu reg_j, reg_i
+ cmp $0, %r11
+ je _get_AAD_done\@
+
+ vpxor reg_i, reg_i, reg_i
+
+ /* read the last <16B of AAD. since we have at least 4B of
+ data right after the AAD (the ICV, and maybe some CT), we can
+ read 4B/8B blocks safely, and then get rid of the extra stuff */
+_get_AAD_rest8\@:
+ cmp $4, %r11
+ jle _get_AAD_rest4\@
+ movq (%r10), \T1
+ add $8, %r10
+ sub $8, %r11
+ vpslldq $8, \T1, \T1
+ vpsrldq $8, reg_i, reg_i
+ vpxor \T1, reg_i, reg_i
+ jmp _get_AAD_rest8\@
+_get_AAD_rest4\@:
+ cmp $0, %r11
+ jle _get_AAD_rest0\@
+ mov (%r10), %eax
+ movq %rax, \T1
+ add $4, %r10
+ sub $4, %r11
+ vpslldq $12, \T1, \T1
+ vpsrldq $4, reg_i, reg_i
+ vpxor \T1, reg_i, reg_i
+_get_AAD_rest0\@:
+ /* finalize: shift out the extra bytes we read, and align
+ left. since pslldq can only shift by an immediate, we use
+ vpshufb and an array of shuffle masks */
+ movq %r12, %r11
+ salq $4, %r11
+ movdqu aad_shift_arr(%r11), \T1
+ vpshufb \T1, reg_i, reg_i
+_get_AAD_rest_final\@:
+ vpshufb SHUF_MASK(%rip), reg_i, reg_i
+ vpxor reg_j, reg_i, reg_i
+ GHASH_MUL_AVX2 reg_i, \T2, \T1, \T3, \T4, \T5, \T6
+
+_get_AAD_done\@:
# initialize the data pointer offset as zero
xor %r11, %r11
@@ -1740,7 +1843,6 @@ _get_AAD_loop2_done\@:
i = (8-\num_initial_blocks)
j = (9-\num_initial_blocks)
setreg
- GHASH_MUL_AVX2 reg_i, \T2, \T1, \T3, \T4, \T5, \T6
.rep \num_initial_blocks
vpxor reg_i, reg_j, reg_j
@@ -2702,19 +2804,36 @@ _return_T\@:
cmp $16, %r11
je _T_16\@
- cmp $12, %r11
- je _T_12\@
+ cmp $8, %r11
+ jl _T_4\@
_T_8\@:
vmovq %xmm9, %rax
mov %rax, (%r10)
- jmp _return_T_done\@
-_T_12\@:
- vmovq %xmm9, %rax
- mov %rax, (%r10)
+ add $8, %r10
+ sub $8, %r11
vpsrldq $8, %xmm9, %xmm9
+ cmp $0, %r11
+ je _return_T_done\@
+_T_4\@:
vmovd %xmm9, %eax
- mov %eax, 8(%r10)
+ mov %eax, (%r10)
+ add $4, %r10
+ sub $4, %r11
+ vpsrldq $4, %xmm9, %xmm9
+ cmp $0, %r11
+ je _return_T_done\@
+_T_123\@:
+ vmovd %xmm9, %eax
+ cmp $2, %r11
+ jl _T_1\@
+ mov %ax, (%r10)
+ cmp $2, %r11
+ je _return_T_done\@
+ add $2, %r10
+ sar $16, %eax
+_T_1\@:
+ mov %al, (%r10)
jmp _return_T_done\@
_T_16\@:
diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c
index 93de8ea51548..5c15d6b57329 100644
--- a/arch/x86/crypto/aesni-intel_glue.c
+++ b/arch/x86/crypto/aesni-intel_glue.c
@@ -61,6 +61,11 @@ struct aesni_rfc4106_gcm_ctx {
u8 nonce[4];
};
+struct generic_gcmaes_ctx {
+ u8 hash_subkey[16] AESNI_ALIGN_ATTR;
+ struct crypto_aes_ctx aes_key_expanded AESNI_ALIGN_ATTR;
+};
+
struct aesni_xts_ctx {
u8 raw_tweak_ctx[sizeof(struct crypto_aes_ctx)] AESNI_ALIGN_ATTR;
u8 raw_crypt_ctx[sizeof(struct crypto_aes_ctx)] AESNI_ALIGN_ATTR;
@@ -102,13 +107,11 @@ asmlinkage void aesni_xts_crypt8(struct crypto_aes_ctx *ctx, u8 *out,
* u8 *out, Ciphertext output. Encrypt in-place is allowed.
* const u8 *in, Plaintext input
* unsigned long plaintext_len, Length of data in bytes for encryption.
- * u8 *iv, Pre-counter block j0: 4 byte salt (from Security Association)
- * concatenated with 8 byte Initialisation Vector (from IPSec ESP
- * Payload) concatenated with 0x00000001. 16-byte aligned pointer.
+ * u8 *iv, Pre-counter block j0: 12 byte IV concatenated with 0x00000001.
+ * 16-byte aligned pointer.
* u8 *hash_subkey, the Hash sub key input. Data starts on a 16-byte boundary.
* const u8 *aad, Additional Authentication Data (AAD)
- * unsigned long aad_len, Length of AAD in bytes. With RFC4106 this
- * is going to be 8 or 12 bytes
+ * unsigned long aad_len, Length of AAD in bytes.
* u8 *auth_tag, Authenticated Tag output.
* unsigned long auth_tag_len), Authenticated Tag Length in bytes.
* Valid values are 16 (most likely), 12 or 8.
@@ -123,9 +126,8 @@ asmlinkage void aesni_gcm_enc(void *ctx, u8 *out,
* u8 *out, Plaintext output. Decrypt in-place is allowed.
* const u8 *in, Ciphertext input
* unsigned long ciphertext_len, Length of data in bytes for decryption.
- * u8 *iv, Pre-counter block j0: 4 byte salt (from Security Association)
- * concatenated with 8 byte Initialisation Vector (from IPSec ESP
- * Payload) concatenated with 0x00000001. 16-byte aligned pointer.
+ * u8 *iv, Pre-counter block j0: 12 byte IV concatenated with 0x00000001.
+ * 16-byte aligned pointer.
* u8 *hash_subkey, the Hash sub key input. Data starts on a 16-byte boundary.
* const u8 *aad, Additional Authentication Data (AAD)
* unsigned long aad_len, Length of AAD in bytes. With RFC4106 this is going
@@ -275,6 +277,16 @@ aesni_rfc4106_gcm_ctx *aesni_rfc4106_gcm_ctx_get(struct crypto_aead *tfm)
align = 1;
return PTR_ALIGN(crypto_aead_ctx(tfm), align);
}
+
+static inline struct
+generic_gcmaes_ctx *generic_gcmaes_ctx_get(struct crypto_aead *tfm)
+{
+ unsigned long align = AESNI_ALIGN;
+
+ if (align <= crypto_tfm_ctx_alignment())
+ align = 1;
+ return PTR_ALIGN(crypto_aead_ctx(tfm), align);
+}
#endif
static inline struct crypto_aes_ctx *aes_ctx(void *raw_ctx)
@@ -463,8 +475,8 @@ static void ctr_crypt_final(struct crypto_aes_ctx *ctx,
unsigned int nbytes = walk->nbytes;
aesni_enc(ctx, keystream, ctrblk);
- crypto_xor(keystream, src, nbytes);
- memcpy(dst, keystream, nbytes);
+ crypto_xor_cpy(dst, keystream, src, nbytes);
+
crypto_inc(ctrblk, AES_BLOCK_SIZE);
}
@@ -712,32 +724,34 @@ static int rfc4106_set_authsize(struct crypto_aead *parent,
return crypto_aead_setauthsize(&cryptd_tfm->base, authsize);
}
-static int helper_rfc4106_encrypt(struct aead_request *req)
+static int generic_gcmaes_set_authsize(struct crypto_aead *tfm,
+ unsigned int authsize)
+{
+ switch (authsize) {
+ case 4:
+ case 8:
+ case 12:
+ case 13:
+ case 14:
+ case 15:
+ case 16:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int gcmaes_encrypt(struct aead_request *req, unsigned int assoclen,
+ u8 *hash_subkey, u8 *iv, void *aes_ctx)
{
u8 one_entry_in_sg = 0;
u8 *src, *dst, *assoc;
- __be32 counter = cpu_to_be32(1);
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
- struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm);
- void *aes_ctx = &(ctx->aes_key_expanded);
unsigned long auth_tag_len = crypto_aead_authsize(tfm);
- u8 iv[16] __attribute__ ((__aligned__(AESNI_ALIGN)));
struct scatter_walk src_sg_walk;
struct scatter_walk dst_sg_walk = {};
- unsigned int i;
-
- /* Assuming we are supporting rfc4106 64-bit extended */
- /* sequence numbers We need to have the AAD length equal */
- /* to 16 or 20 bytes */
- if (unlikely(req->assoclen != 16 && req->assoclen != 20))
- return -EINVAL;
-
- /* IV below built */
- for (i = 0; i < 4; i++)
- *(iv+i) = ctx->nonce[i];
- for (i = 0; i < 8; i++)
- *(iv+4+i) = req->iv[i];
- *((__be32 *)(iv+12)) = counter;
if (sg_is_last(req->src) &&
(!PageHighMem(sg_page(req->src)) ||
@@ -768,7 +782,7 @@ static int helper_rfc4106_encrypt(struct aead_request *req)
kernel_fpu_begin();
aesni_gcm_enc_tfm(aes_ctx, dst, src, req->cryptlen, iv,
- ctx->hash_subkey, assoc, req->assoclen - 8,
+ hash_subkey, assoc, assoclen,
dst + req->cryptlen, auth_tag_len);
kernel_fpu_end();
@@ -791,37 +805,20 @@ static int helper_rfc4106_encrypt(struct aead_request *req)
return 0;
}
-static int helper_rfc4106_decrypt(struct aead_request *req)
+static int gcmaes_decrypt(struct aead_request *req, unsigned int assoclen,
+ u8 *hash_subkey, u8 *iv, void *aes_ctx)
{
u8 one_entry_in_sg = 0;
u8 *src, *dst, *assoc;
unsigned long tempCipherLen = 0;
- __be32 counter = cpu_to_be32(1);
- int retval = 0;
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
- struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm);
- void *aes_ctx = &(ctx->aes_key_expanded);
unsigned long auth_tag_len = crypto_aead_authsize(tfm);
- u8 iv[16] __attribute__ ((__aligned__(AESNI_ALIGN)));
u8 authTag[16];
struct scatter_walk src_sg_walk;
struct scatter_walk dst_sg_walk = {};
- unsigned int i;
-
- if (unlikely(req->assoclen != 16 && req->assoclen != 20))
- return -EINVAL;
-
- /* Assuming we are supporting rfc4106 64-bit extended */
- /* sequence numbers We need to have the AAD length */
- /* equal to 16 or 20 bytes */
+ int retval = 0;
tempCipherLen = (unsigned long)(req->cryptlen - auth_tag_len);
- /* IV below built */
- for (i = 0; i < 4; i++)
- *(iv+i) = ctx->nonce[i];
- for (i = 0; i < 8; i++)
- *(iv+4+i) = req->iv[i];
- *((__be32 *)(iv+12)) = counter;
if (sg_is_last(req->src) &&
(!PageHighMem(sg_page(req->src)) ||
@@ -838,7 +835,6 @@ static int helper_rfc4106_decrypt(struct aead_request *req)
scatterwalk_start(&dst_sg_walk, req->dst);
dst = scatterwalk_map(&dst_sg_walk) + req->assoclen;
}
-
} else {
/* Allocate memory for src, dst, assoc */
assoc = kmalloc(req->cryptlen + req->assoclen, GFP_ATOMIC);
@@ -850,9 +846,10 @@ static int helper_rfc4106_decrypt(struct aead_request *req)
dst = src;
}
+
kernel_fpu_begin();
aesni_gcm_dec_tfm(aes_ctx, dst, src, tempCipherLen, iv,
- ctx->hash_subkey, assoc, req->assoclen - 8,
+ hash_subkey, assoc, assoclen,
authTag, auth_tag_len);
kernel_fpu_end();
@@ -875,6 +872,60 @@ static int helper_rfc4106_decrypt(struct aead_request *req)
kfree(assoc);
}
return retval;
+
+}
+
+static int helper_rfc4106_encrypt(struct aead_request *req)
+{
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+ struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm);
+ void *aes_ctx = &(ctx->aes_key_expanded);
+ u8 iv[16] __attribute__ ((__aligned__(AESNI_ALIGN)));
+ unsigned int i;
+ __be32 counter = cpu_to_be32(1);
+
+ /* Assuming we are supporting rfc4106 64-bit extended */
+ /* sequence numbers We need to have the AAD length equal */
+ /* to 16 or 20 bytes */
+ if (unlikely(req->assoclen != 16 && req->assoclen != 20))
+ return -EINVAL;
+
+ /* IV below built */
+ for (i = 0; i < 4; i++)
+ *(iv+i) = ctx->nonce[i];
+ for (i = 0; i < 8; i++)
+ *(iv+4+i) = req->iv[i];
+ *((__be32 *)(iv+12)) = counter;
+
+ return gcmaes_encrypt(req, req->assoclen - 8, ctx->hash_subkey, iv,
+ aes_ctx);
+}
+
+static int helper_rfc4106_decrypt(struct aead_request *req)
+{
+ __be32 counter = cpu_to_be32(1);
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+ struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm);
+ void *aes_ctx = &(ctx->aes_key_expanded);
+ u8 iv[16] __attribute__ ((__aligned__(AESNI_ALIGN)));
+ unsigned int i;
+
+ if (unlikely(req->assoclen != 16 && req->assoclen != 20))
+ return -EINVAL;
+
+ /* Assuming we are supporting rfc4106 64-bit extended */
+ /* sequence numbers We need to have the AAD length */
+ /* equal to 16 or 20 bytes */
+
+ /* IV below built */
+ for (i = 0; i < 4; i++)
+ *(iv+i) = ctx->nonce[i];
+ for (i = 0; i < 8; i++)
+ *(iv+4+i) = req->iv[i];
+ *((__be32 *)(iv+12)) = counter;
+
+ return gcmaes_decrypt(req, req->assoclen - 8, ctx->hash_subkey, iv,
+ aes_ctx);
}
static int rfc4106_encrypt(struct aead_request *req)
@@ -1035,6 +1086,46 @@ struct {
};
#ifdef CONFIG_X86_64
+static int generic_gcmaes_set_key(struct crypto_aead *aead, const u8 *key,
+ unsigned int key_len)
+{
+ struct generic_gcmaes_ctx *ctx = generic_gcmaes_ctx_get(aead);
+
+ return aes_set_key_common(crypto_aead_tfm(aead),
+ &ctx->aes_key_expanded, key, key_len) ?:
+ rfc4106_set_hash_subkey(ctx->hash_subkey, key, key_len);
+}
+
+static int generic_gcmaes_encrypt(struct aead_request *req)
+{
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+ struct generic_gcmaes_ctx *ctx = generic_gcmaes_ctx_get(tfm);
+ void *aes_ctx = &(ctx->aes_key_expanded);
+ u8 iv[16] __attribute__ ((__aligned__(AESNI_ALIGN)));
+ __be32 counter = cpu_to_be32(1);
+
+ memcpy(iv, req->iv, 12);
+ *((__be32 *)(iv+12)) = counter;
+
+ return gcmaes_encrypt(req, req->assoclen, ctx->hash_subkey, iv,
+ aes_ctx);
+}
+
+static int generic_gcmaes_decrypt(struct aead_request *req)
+{
+ __be32 counter = cpu_to_be32(1);
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+ struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm);
+ void *aes_ctx = &(ctx->aes_key_expanded);
+ u8 iv[16] __attribute__ ((__aligned__(AESNI_ALIGN)));
+
+ memcpy(iv, req->iv, 12);
+ *((__be32 *)(iv+12)) = counter;
+
+ return gcmaes_decrypt(req, req->assoclen, ctx->hash_subkey, iv,
+ aes_ctx);
+}
+
static struct aead_alg aesni_aead_algs[] = { {
.setkey = common_rfc4106_set_key,
.setauthsize = common_rfc4106_set_authsize,
@@ -1069,6 +1160,23 @@ static struct aead_alg aesni_aead_algs[] = { {
.cra_ctxsize = sizeof(struct cryptd_aead *),
.cra_module = THIS_MODULE,
},
+}, {
+ .setkey = generic_gcmaes_set_key,
+ .setauthsize = generic_gcmaes_set_authsize,
+ .encrypt = generic_gcmaes_encrypt,
+ .decrypt = generic_gcmaes_decrypt,
+ .ivsize = 12,
+ .maxauthsize = 16,
+ .base = {
+ .cra_name = "gcm(aes)",
+ .cra_driver_name = "generic-gcm-aesni",
+ .cra_priority = 400,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct generic_gcmaes_ctx),
+ .cra_alignmask = AESNI_ALIGN - 1,
+ .cra_module = THIS_MODULE,
+ },
} };
#else
static struct aead_alg aesni_aead_algs[0];
diff --git a/arch/x86/crypto/blowfish-x86_64-asm_64.S b/arch/x86/crypto/blowfish-x86_64-asm_64.S
index 246c67006ed0..8c1fcb6bad21 100644
--- a/arch/x86/crypto/blowfish-x86_64-asm_64.S
+++ b/arch/x86/crypto/blowfish-x86_64-asm_64.S
@@ -33,7 +33,7 @@
#define s3 ((16 + 2 + (3 * 256)) * 4)
/* register macros */
-#define CTX %rdi
+#define CTX %r12
#define RIO %rsi
#define RX0 %rax
@@ -56,12 +56,12 @@
#define RX2bh %ch
#define RX3bh %dh
-#define RT0 %rbp
+#define RT0 %rdi
#define RT1 %rsi
#define RT2 %r8
#define RT3 %r9
-#define RT0d %ebp
+#define RT0d %edi
#define RT1d %esi
#define RT2d %r8d
#define RT3d %r9d
@@ -120,13 +120,14 @@
ENTRY(__blowfish_enc_blk)
/* input:
- * %rdi: ctx, CTX
+ * %rdi: ctx
* %rsi: dst
* %rdx: src
* %rcx: bool, if true: xor output
*/
- movq %rbp, %r11;
+ movq %r12, %r11;
+ movq %rdi, CTX;
movq %rsi, %r10;
movq %rdx, RIO;
@@ -142,7 +143,7 @@ ENTRY(__blowfish_enc_blk)
round_enc(14);
add_roundkey_enc(16);
- movq %r11, %rbp;
+ movq %r11, %r12;
movq %r10, RIO;
test %cl, %cl;
@@ -157,12 +158,13 @@ ENDPROC(__blowfish_enc_blk)
ENTRY(blowfish_dec_blk)
/* input:
- * %rdi: ctx, CTX
+ * %rdi: ctx
* %rsi: dst
* %rdx: src
*/
- movq %rbp, %r11;
+ movq %r12, %r11;
+ movq %rdi, CTX;
movq %rsi, %r10;
movq %rdx, RIO;
@@ -181,7 +183,7 @@ ENTRY(blowfish_dec_blk)
movq %r10, RIO;
write_block();
- movq %r11, %rbp;
+ movq %r11, %r12;
ret;
ENDPROC(blowfish_dec_blk)
@@ -298,20 +300,21 @@ ENDPROC(blowfish_dec_blk)
ENTRY(__blowfish_enc_blk_4way)
/* input:
- * %rdi: ctx, CTX
+ * %rdi: ctx
* %rsi: dst
* %rdx: src
* %rcx: bool, if true: xor output
*/
- pushq %rbp;
+ pushq %r12;
pushq %rbx;
pushq %rcx;
- preload_roundkey_enc(0);
-
+ movq %rdi, CTX
movq %rsi, %r11;
movq %rdx, RIO;
+ preload_roundkey_enc(0);
+
read_block4();
round_enc4(0);
@@ -324,39 +327,40 @@ ENTRY(__blowfish_enc_blk_4way)
round_enc4(14);
add_preloaded_roundkey4();
- popq %rbp;
+ popq %r12;
movq %r11, RIO;
- test %bpl, %bpl;
+ test %r12b, %r12b;
jnz .L__enc_xor4;
write_block4();
popq %rbx;
- popq %rbp;
+ popq %r12;
ret;
.L__enc_xor4:
xor_block4();
popq %rbx;
- popq %rbp;
+ popq %r12;
ret;
ENDPROC(__blowfish_enc_blk_4way)
ENTRY(blowfish_dec_blk_4way)
/* input:
- * %rdi: ctx, CTX
+ * %rdi: ctx
* %rsi: dst
* %rdx: src
*/
- pushq %rbp;
+ pushq %r12;
pushq %rbx;
- preload_roundkey_dec(17);
- movq %rsi, %r11;
+ movq %rdi, CTX;
+ movq %rsi, %r11
movq %rdx, RIO;
+ preload_roundkey_dec(17);
read_block4();
round_dec4(17);
@@ -373,7 +377,7 @@ ENTRY(blowfish_dec_blk_4way)
write_block4();
popq %rbx;
- popq %rbp;
+ popq %r12;
ret;
ENDPROC(blowfish_dec_blk_4way)
diff --git a/arch/x86/crypto/blowfish_glue.c b/arch/x86/crypto/blowfish_glue.c
index 17c05531dfd1..f9eca34301e2 100644
--- a/arch/x86/crypto/blowfish_glue.c
+++ b/arch/x86/crypto/blowfish_glue.c
@@ -271,8 +271,7 @@ static void ctr_crypt_final(struct bf_ctx *ctx, struct blkcipher_walk *walk)
unsigned int nbytes = walk->nbytes;
blowfish_enc_blk(ctx, keystream, ctrblk);
- crypto_xor(keystream, src, nbytes);
- memcpy(dst, keystream, nbytes);
+ crypto_xor_cpy(dst, keystream, src, nbytes);
crypto_inc(ctrblk, BF_BLOCK_SIZE);
}
diff --git a/arch/x86/crypto/camellia-x86_64-asm_64.S b/arch/x86/crypto/camellia-x86_64-asm_64.S
index 310319c601ed..95ba6956a7f6 100644
--- a/arch/x86/crypto/camellia-x86_64-asm_64.S
+++ b/arch/x86/crypto/camellia-x86_64-asm_64.S
@@ -75,17 +75,17 @@
#define RCD1bh %dh
#define RT0 %rsi
-#define RT1 %rbp
+#define RT1 %r12
#define RT2 %r8
#define RT0d %esi
-#define RT1d %ebp
+#define RT1d %r12d
#define RT2d %r8d
#define RT2bl %r8b
#define RXOR %r9
-#define RRBP %r10
+#define RR12 %r10
#define RDST %r11
#define RXORd %r9d
@@ -197,7 +197,7 @@ ENTRY(__camellia_enc_blk)
* %rdx: src
* %rcx: bool xor
*/
- movq %rbp, RRBP;
+ movq %r12, RR12;
movq %rcx, RXOR;
movq %rsi, RDST;
@@ -227,13 +227,13 @@ ENTRY(__camellia_enc_blk)
enc_outunpack(mov, RT1);
- movq RRBP, %rbp;
+ movq RR12, %r12;
ret;
.L__enc_xor:
enc_outunpack(xor, RT1);
- movq RRBP, %rbp;
+ movq RR12, %r12;
ret;
ENDPROC(__camellia_enc_blk)
@@ -248,7 +248,7 @@ ENTRY(camellia_dec_blk)
movl $24, RXORd;
cmovel RXORd, RT2d; /* max */
- movq %rbp, RRBP;
+ movq %r12, RR12;
movq %rsi, RDST;
movq %rdx, RIO;
@@ -271,7 +271,7 @@ ENTRY(camellia_dec_blk)
dec_outunpack();
- movq RRBP, %rbp;
+ movq RR12, %r12;
ret;
ENDPROC(camellia_dec_blk)
@@ -433,7 +433,7 @@ ENTRY(__camellia_enc_blk_2way)
*/
pushq %rbx;
- movq %rbp, RRBP;
+ movq %r12, RR12;
movq %rcx, RXOR;
movq %rsi, RDST;
movq %rdx, RIO;
@@ -461,14 +461,14 @@ ENTRY(__camellia_enc_blk_2way)
enc_outunpack2(mov, RT2);
- movq RRBP, %rbp;
+ movq RR12, %r12;
popq %rbx;
ret;
.L__enc2_xor:
enc_outunpack2(xor, RT2);
- movq RRBP, %rbp;
+ movq RR12, %r12;
popq %rbx;
ret;
ENDPROC(__camellia_enc_blk_2way)
@@ -485,7 +485,7 @@ ENTRY(camellia_dec_blk_2way)
cmovel RXORd, RT2d; /* max */
movq %rbx, RXOR;
- movq %rbp, RRBP;
+ movq %r12, RR12;
movq %rsi, RDST;
movq %rdx, RIO;
@@ -508,7 +508,7 @@ ENTRY(camellia_dec_blk_2way)
dec_outunpack2();
- movq RRBP, %rbp;
+ movq RR12, %r12;
movq RXOR, %rbx;
ret;
ENDPROC(camellia_dec_blk_2way)
diff --git a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
index b4a8806234ea..86107c961bb4 100644
--- a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
@@ -47,7 +47,7 @@
/**********************************************************************
16-way AVX cast5
**********************************************************************/
-#define CTX %rdi
+#define CTX %r15
#define RL1 %xmm0
#define RR1 %xmm1
@@ -70,8 +70,8 @@
#define RTMP %xmm15
-#define RID1 %rbp
-#define RID1d %ebp
+#define RID1 %rdi
+#define RID1d %edi
#define RID2 %rsi
#define RID2d %esi
@@ -226,7 +226,7 @@
.align 16
__cast5_enc_blk16:
/* input:
- * %rdi: ctx, CTX
+ * %rdi: ctx
* RL1: blocks 1 and 2
* RR1: blocks 3 and 4
* RL2: blocks 5 and 6
@@ -246,9 +246,11 @@ __cast5_enc_blk16:
* RR4: encrypted blocks 15 and 16
*/
- pushq %rbp;
+ pushq %r15;
pushq %rbx;
+ movq %rdi, CTX;
+
vmovdqa .Lbswap_mask, RKM;
vmovd .Lfirst_mask, R1ST;
vmovd .L32_mask, R32;
@@ -283,7 +285,7 @@ __cast5_enc_blk16:
.L__skip_enc:
popq %rbx;
- popq %rbp;
+ popq %r15;
vmovdqa .Lbswap_mask, RKM;
@@ -298,7 +300,7 @@ ENDPROC(__cast5_enc_blk16)
.align 16
__cast5_dec_blk16:
/* input:
- * %rdi: ctx, CTX
+ * %rdi: ctx
* RL1: encrypted blocks 1 and 2
* RR1: encrypted blocks 3 and 4
* RL2: encrypted blocks 5 and 6
@@ -318,9 +320,11 @@ __cast5_dec_blk16:
* RR4: decrypted blocks 15 and 16
*/
- pushq %rbp;
+ pushq %r15;
pushq %rbx;
+ movq %rdi, CTX;
+
vmovdqa .Lbswap_mask, RKM;
vmovd .Lfirst_mask, R1ST;
vmovd .L32_mask, R32;
@@ -356,7 +360,7 @@ __cast5_dec_blk16:
vmovdqa .Lbswap_mask, RKM;
popq %rbx;
- popq %rbp;
+ popq %r15;
outunpack_blocks(RR1, RL1, RTMP, RX, RKM);
outunpack_blocks(RR2, RL2, RTMP, RX, RKM);
@@ -372,12 +376,14 @@ ENDPROC(__cast5_dec_blk16)
ENTRY(cast5_ecb_enc_16way)
/* input:
- * %rdi: ctx, CTX
+ * %rdi: ctx
* %rsi: dst
* %rdx: src
*/
FRAME_BEGIN
+ pushq %r15;
+ movq %rdi, CTX;
movq %rsi, %r11;
vmovdqu (0*4*4)(%rdx), RL1;
@@ -400,18 +406,22 @@ ENTRY(cast5_ecb_enc_16way)
vmovdqu RR4, (6*4*4)(%r11);
vmovdqu RL4, (7*4*4)(%r11);
+ popq %r15;
FRAME_END
ret;
ENDPROC(cast5_ecb_enc_16way)
ENTRY(cast5_ecb_dec_16way)
/* input:
- * %rdi: ctx, CTX
+ * %rdi: ctx
* %rsi: dst
* %rdx: src
*/
FRAME_BEGIN
+ pushq %r15;
+
+ movq %rdi, CTX;
movq %rsi, %r11;
vmovdqu (0*4*4)(%rdx), RL1;
@@ -434,20 +444,22 @@ ENTRY(cast5_ecb_dec_16way)
vmovdqu RR4, (6*4*4)(%r11);
vmovdqu RL4, (7*4*4)(%r11);
+ popq %r15;
FRAME_END
ret;
ENDPROC(cast5_ecb_dec_16way)
ENTRY(cast5_cbc_dec_16way)
/* input:
- * %rdi: ctx, CTX
+ * %rdi: ctx
* %rsi: dst
* %rdx: src
*/
FRAME_BEGIN
-
pushq %r12;
+ pushq %r15;
+ movq %rdi, CTX;
movq %rsi, %r11;
movq %rdx, %r12;
@@ -483,23 +495,24 @@ ENTRY(cast5_cbc_dec_16way)
vmovdqu RR4, (6*16)(%r11);
vmovdqu RL4, (7*16)(%r11);
+ popq %r15;
popq %r12;
-
FRAME_END
ret;
ENDPROC(cast5_cbc_dec_16way)
ENTRY(cast5_ctr_16way)
/* input:
- * %rdi: ctx, CTX
+ * %rdi: ctx
* %rsi: dst
* %rdx: src
* %rcx: iv (big endian, 64bit)
*/
FRAME_BEGIN
-
pushq %r12;
+ pushq %r15;
+ movq %rdi, CTX;
movq %rsi, %r11;
movq %rdx, %r12;
@@ -558,8 +571,8 @@ ENTRY(cast5_ctr_16way)
vmovdqu RR4, (6*16)(%r11);
vmovdqu RL4, (7*16)(%r11);
+ popq %r15;
popq %r12;
-
FRAME_END
ret;
ENDPROC(cast5_ctr_16way)
diff --git a/arch/x86/crypto/cast5_avx_glue.c b/arch/x86/crypto/cast5_avx_glue.c
index 8648158f3916..dbea6020ffe7 100644
--- a/arch/x86/crypto/cast5_avx_glue.c
+++ b/arch/x86/crypto/cast5_avx_glue.c
@@ -256,8 +256,7 @@ static void ctr_crypt_final(struct blkcipher_desc *desc,
unsigned int nbytes = walk->nbytes;
__cast5_encrypt(ctx, keystream, ctrblk);
- crypto_xor(keystream, src, nbytes);
- memcpy(dst, keystream, nbytes);
+ crypto_xor_cpy(dst, keystream, src, nbytes);
crypto_inc(ctrblk, CAST5_BLOCK_SIZE);
}
diff --git a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
index 952d3156a933..7f30b6f0d72c 100644
--- a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
@@ -47,7 +47,7 @@
/**********************************************************************
8-way AVX cast6
**********************************************************************/
-#define CTX %rdi
+#define CTX %r15
#define RA1 %xmm0
#define RB1 %xmm1
@@ -70,8 +70,8 @@
#define RTMP %xmm15
-#define RID1 %rbp
-#define RID1d %ebp
+#define RID1 %rdi
+#define RID1d %edi
#define RID2 %rsi
#define RID2d %esi
@@ -264,15 +264,17 @@
.align 8
__cast6_enc_blk8:
/* input:
- * %rdi: ctx, CTX
+ * %rdi: ctx
* RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: blocks
* output:
* RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks
*/
- pushq %rbp;
+ pushq %r15;
pushq %rbx;
+ movq %rdi, CTX;
+
vmovdqa .Lbswap_mask, RKM;
vmovd .Lfirst_mask, R1ST;
vmovd .L32_mask, R32;
@@ -297,7 +299,7 @@ __cast6_enc_blk8:
QBAR(11);
popq %rbx;
- popq %rbp;
+ popq %r15;
vmovdqa .Lbswap_mask, RKM;
@@ -310,15 +312,17 @@ ENDPROC(__cast6_enc_blk8)
.align 8
__cast6_dec_blk8:
/* input:
- * %rdi: ctx, CTX
+ * %rdi: ctx
* RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks
* output:
* RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: decrypted blocks
*/
- pushq %rbp;
+ pushq %r15;
pushq %rbx;
+ movq %rdi, CTX;
+
vmovdqa .Lbswap_mask, RKM;
vmovd .Lfirst_mask, R1ST;
vmovd .L32_mask, R32;
@@ -343,7 +347,7 @@ __cast6_dec_blk8:
QBAR(0);
popq %rbx;
- popq %rbp;
+ popq %r15;
vmovdqa .Lbswap_mask, RKM;
outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
@@ -354,12 +358,14 @@ ENDPROC(__cast6_dec_blk8)
ENTRY(cast6_ecb_enc_8way)
/* input:
- * %rdi: ctx, CTX
+ * %rdi: ctx
* %rsi: dst
* %rdx: src
*/
FRAME_BEGIN
+ pushq %r15;
+ movq %rdi, CTX;
movq %rsi, %r11;
load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
@@ -368,18 +374,21 @@ ENTRY(cast6_ecb_enc_8way)
store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ popq %r15;
FRAME_END
ret;
ENDPROC(cast6_ecb_enc_8way)
ENTRY(cast6_ecb_dec_8way)
/* input:
- * %rdi: ctx, CTX
+ * %rdi: ctx
* %rsi: dst
* %rdx: src
*/
FRAME_BEGIN
+ pushq %r15;
+ movq %rdi, CTX;
movq %rsi, %r11;
load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
@@ -388,20 +397,22 @@ ENTRY(cast6_ecb_dec_8way)
store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ popq %r15;
FRAME_END
ret;
ENDPROC(cast6_ecb_dec_8way)
ENTRY(cast6_cbc_dec_8way)
/* input:
- * %rdi: ctx, CTX
+ * %rdi: ctx
* %rsi: dst
* %rdx: src
*/
FRAME_BEGIN
-
pushq %r12;
+ pushq %r15;
+ movq %rdi, CTX;
movq %rsi, %r11;
movq %rdx, %r12;
@@ -411,8 +422,8 @@ ENTRY(cast6_cbc_dec_8way)
store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ popq %r15;
popq %r12;
-
FRAME_END
ret;
ENDPROC(cast6_cbc_dec_8way)
@@ -425,9 +436,10 @@ ENTRY(cast6_ctr_8way)
* %rcx: iv (little endian, 128bit)
*/
FRAME_BEGIN
-
pushq %r12;
+ pushq %r15
+ movq %rdi, CTX;
movq %rsi, %r11;
movq %rdx, %r12;
@@ -438,8 +450,8 @@ ENTRY(cast6_ctr_8way)
store_ctr_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ popq %r15;
popq %r12;
-
FRAME_END
ret;
ENDPROC(cast6_ctr_8way)
@@ -452,7 +464,9 @@ ENTRY(cast6_xts_enc_8way)
* %rcx: iv (t ⊕ α⿠∈ GF(2¹²â¸))
*/
FRAME_BEGIN
+ pushq %r15;
+ movq %rdi, CTX
movq %rsi, %r11;
/* regs <= src, dst <= IVs, regs <= regs xor IVs */
@@ -464,6 +478,7 @@ ENTRY(cast6_xts_enc_8way)
/* dst <= regs xor IVs(in dst) */
store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ popq %r15;
FRAME_END
ret;
ENDPROC(cast6_xts_enc_8way)
@@ -476,7 +491,9 @@ ENTRY(cast6_xts_dec_8way)
* %rcx: iv (t ⊕ α⿠∈ GF(2¹²â¸))
*/
FRAME_BEGIN
+ pushq %r15;
+ movq %rdi, CTX
movq %rsi, %r11;
/* regs <= src, dst <= IVs, regs <= regs xor IVs */
@@ -488,6 +505,7 @@ ENTRY(cast6_xts_dec_8way)
/* dst <= regs xor IVs(in dst) */
store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ popq %r15;
FRAME_END
ret;
ENDPROC(cast6_xts_dec_8way)
diff --git a/arch/x86/crypto/des3_ede-asm_64.S b/arch/x86/crypto/des3_ede-asm_64.S
index f3e91647ca27..8e49ce117494 100644
--- a/arch/x86/crypto/des3_ede-asm_64.S
+++ b/arch/x86/crypto/des3_ede-asm_64.S
@@ -64,12 +64,12 @@
#define RW2bh %ch
#define RT0 %r15
-#define RT1 %rbp
+#define RT1 %rsi
#define RT2 %r14
#define RT3 %rdx
#define RT0d %r15d
-#define RT1d %ebp
+#define RT1d %esi
#define RT2d %r14d
#define RT3d %edx
@@ -177,13 +177,14 @@ ENTRY(des3_ede_x86_64_crypt_blk)
* %rsi: dst
* %rdx: src
*/
- pushq %rbp;
pushq %rbx;
pushq %r12;
pushq %r13;
pushq %r14;
pushq %r15;
+ pushq %rsi; /* dst */
+
read_block(%rdx, RL0, RR0);
initial_permutation(RL0, RR0);
@@ -241,6 +242,8 @@ ENTRY(des3_ede_x86_64_crypt_blk)
round1(32+15, RL0, RR0, dummy2);
final_permutation(RR0, RL0);
+
+ popq %rsi /* dst */
write_block(%rsi, RR0, RL0);
popq %r15;
@@ -248,7 +251,6 @@ ENTRY(des3_ede_x86_64_crypt_blk)
popq %r13;
popq %r12;
popq %rbx;
- popq %rbp;
ret;
ENDPROC(des3_ede_x86_64_crypt_blk)
@@ -432,13 +434,14 @@ ENTRY(des3_ede_x86_64_crypt_blk_3way)
* %rdx: src (3 blocks)
*/
- pushq %rbp;
pushq %rbx;
pushq %r12;
pushq %r13;
pushq %r14;
pushq %r15;
+ pushq %rsi /* dst */
+
/* load input */
movl 0 * 4(%rdx), RL0d;
movl 1 * 4(%rdx), RR0d;
@@ -520,6 +523,7 @@ ENTRY(des3_ede_x86_64_crypt_blk_3way)
bswapl RR2d;
bswapl RL2d;
+ popq %rsi /* dst */
movl RR0d, 0 * 4(%rsi);
movl RL0d, 1 * 4(%rsi);
movl RR1d, 2 * 4(%rsi);
@@ -532,7 +536,6 @@ ENTRY(des3_ede_x86_64_crypt_blk_3way)
popq %r13;
popq %r12;
popq %rbx;
- popq %rbp;
ret;
ENDPROC(des3_ede_x86_64_crypt_blk_3way)
diff --git a/arch/x86/crypto/des3_ede_glue.c b/arch/x86/crypto/des3_ede_glue.c
index d6fc59aaaadf..30c0a37f4882 100644
--- a/arch/x86/crypto/des3_ede_glue.c
+++ b/arch/x86/crypto/des3_ede_glue.c
@@ -277,8 +277,7 @@ static void ctr_crypt_final(struct des3_ede_x86_ctx *ctx,
unsigned int nbytes = walk->nbytes;
des3_ede_enc_blk(ctx, keystream, ctrblk);
- crypto_xor(keystream, src, nbytes);
- memcpy(dst, keystream, nbytes);
+ crypto_xor_cpy(dst, keystream, src, nbytes);
crypto_inc(ctrblk, DES3_EDE_BLOCK_SIZE);
}
diff --git a/arch/x86/crypto/glue_helper.c b/arch/x86/crypto/glue_helper.c
index 24ac9fad832d..d61e57960fe0 100644
--- a/arch/x86/crypto/glue_helper.c
+++ b/arch/x86/crypto/glue_helper.c
@@ -176,9 +176,6 @@ __glue_cbc_decrypt_128bit(const struct common_glue_ctx *gctx,
src -= 1;
dst -= 1;
} while (nbytes >= func_bytes);
-
- if (nbytes < bsize)
- goto done;
}
}
diff --git a/arch/x86/crypto/sha1-mb/Makefile b/arch/x86/crypto/sha1-mb/Makefile
index 2f8756375df5..2e14acc3da25 100644
--- a/arch/x86/crypto/sha1-mb/Makefile
+++ b/arch/x86/crypto/sha1-mb/Makefile
@@ -2,6 +2,8 @@
# Arch-specific CryptoAPI modules.
#
+OBJECT_FILES_NON_STANDARD := y
+
avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\
$(comma)4)$(comma)%ymm2,yes,no)
ifeq ($(avx2_supported),yes)
diff --git a/arch/x86/crypto/sha1_avx2_x86_64_asm.S b/arch/x86/crypto/sha1_avx2_x86_64_asm.S
index 1cd792db15ef..9f712a7dfd79 100644
--- a/arch/x86/crypto/sha1_avx2_x86_64_asm.S
+++ b/arch/x86/crypto/sha1_avx2_x86_64_asm.S
@@ -89,7 +89,7 @@
#define REG_RE %rdx
#define REG_RTA %r12
#define REG_RTB %rbx
-#define REG_T1 %ebp
+#define REG_T1 %r11d
#define xmm_mov vmovups
#define avx2_zeroupper vzeroupper
#define RND_F1 1
@@ -117,11 +117,10 @@
.set T1, REG_T1
.endm
-#define K_BASE %r8
#define HASH_PTR %r9
+#define BLOCKS_CTR %r8
#define BUFFER_PTR %r10
#define BUFFER_PTR2 %r13
-#define BUFFER_END %r11
#define PRECALC_BUF %r14
#define WK_BUF %r15
@@ -205,14 +204,14 @@
* blended AVX2 and ALU instruction scheduling
* 1 vector iteration per 8 rounds
*/
- vmovdqu ((i * 2) + PRECALC_OFFSET)(BUFFER_PTR), W_TMP
+ vmovdqu (i * 2)(BUFFER_PTR), W_TMP
.elseif ((i & 7) == 1)
- vinsertf128 $1, (((i-1) * 2)+PRECALC_OFFSET)(BUFFER_PTR2),\
+ vinsertf128 $1, ((i-1) * 2)(BUFFER_PTR2),\
WY_TMP, WY_TMP
.elseif ((i & 7) == 2)
vpshufb YMM_SHUFB_BSWAP, WY_TMP, WY
.elseif ((i & 7) == 4)
- vpaddd K_XMM(K_BASE), WY, WY_TMP
+ vpaddd K_XMM + K_XMM_AR(%rip), WY, WY_TMP
.elseif ((i & 7) == 7)
vmovdqu WY_TMP, PRECALC_WK(i&~7)
@@ -255,7 +254,7 @@
vpxor WY, WY_TMP, WY_TMP
.elseif ((i & 7) == 7)
vpxor WY_TMP2, WY_TMP, WY
- vpaddd K_XMM(K_BASE), WY, WY_TMP
+ vpaddd K_XMM + K_XMM_AR(%rip), WY, WY_TMP
vmovdqu WY_TMP, PRECALC_WK(i&~7)
PRECALC_ROTATE_WY
@@ -291,7 +290,7 @@
vpsrld $30, WY, WY
vpor WY, WY_TMP, WY
.elseif ((i & 7) == 7)
- vpaddd K_XMM(K_BASE), WY, WY_TMP
+ vpaddd K_XMM + K_XMM_AR(%rip), WY, WY_TMP
vmovdqu WY_TMP, PRECALC_WK(i&~7)
PRECALC_ROTATE_WY
@@ -446,6 +445,16 @@
.endm
+/* Add constant only if (%2 > %3) condition met (uses RTA as temp)
+ * %1 + %2 >= %3 ? %4 : 0
+ */
+.macro ADD_IF_GE a, b, c, d
+ mov \a, RTA
+ add $\d, RTA
+ cmp $\c, \b
+ cmovge RTA, \a
+.endm
+
/*
* macro implements 80 rounds of SHA-1, for multiple blocks with s/w pipelining
*/
@@ -463,13 +472,16 @@
lea (2*4*80+32)(%rsp), WK_BUF
# Precalc WK for first 2 blocks
- PRECALC_OFFSET = 0
+ ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 2, 64
.set i, 0
.rept 160
PRECALC i
.set i, i + 1
.endr
- PRECALC_OFFSET = 128
+
+ /* Go to next block if needed */
+ ADD_IF_GE BUFFER_PTR, BLOCKS_CTR, 3, 128
+ ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 4, 128
xchg WK_BUF, PRECALC_BUF
.align 32
@@ -479,8 +491,8 @@ _loop:
* we use K_BASE value as a signal of a last block,
* it is set below by: cmovae BUFFER_PTR, K_BASE
*/
- cmp K_BASE, BUFFER_PTR
- jne _begin
+ test BLOCKS_CTR, BLOCKS_CTR
+ jnz _begin
.align 32
jmp _end
.align 32
@@ -512,10 +524,10 @@ _loop0:
.set j, j+2
.endr
- add $(2*64), BUFFER_PTR /* move to next odd-64-byte block */
- cmp BUFFER_END, BUFFER_PTR /* is current block the last one? */
- cmovae K_BASE, BUFFER_PTR /* signal the last iteration smartly */
-
+ /* Update Counter */
+ sub $1, BLOCKS_CTR
+ /* Move to the next block only if needed*/
+ ADD_IF_GE BUFFER_PTR, BLOCKS_CTR, 4, 128
/*
* rounds
* 60,62,64,66,68
@@ -532,8 +544,8 @@ _loop0:
UPDATE_HASH 12(HASH_PTR), D
UPDATE_HASH 16(HASH_PTR), E
- cmp K_BASE, BUFFER_PTR /* is current block the last one? */
- je _loop
+ test BLOCKS_CTR, BLOCKS_CTR
+ jz _loop
mov TB, B
@@ -575,10 +587,10 @@ _loop2:
.set j, j+2
.endr
- add $(2*64), BUFFER_PTR2 /* move to next even-64-byte block */
-
- cmp BUFFER_END, BUFFER_PTR2 /* is current block the last one */
- cmovae K_BASE, BUFFER_PTR /* signal the last iteration smartly */
+ /* update counter */
+ sub $1, BLOCKS_CTR
+ /* Move to the next block only if needed*/
+ ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 4, 128
jmp _loop3
_loop3:
@@ -625,7 +637,6 @@ _loop3:
ENTRY(\name)
push %rbx
- push %rbp
push %r12
push %r13
push %r14
@@ -641,19 +652,12 @@ _loop3:
avx2_zeroupper
- lea K_XMM_AR(%rip), K_BASE
-
+ /* Setup initial values */
mov CTX, HASH_PTR
mov BUF, BUFFER_PTR
- lea 64(BUF), BUFFER_PTR2
-
- shl $6, CNT /* mul by 64 */
- add BUF, CNT
- add $64, CNT
- mov CNT, BUFFER_END
- cmp BUFFER_END, BUFFER_PTR2
- cmovae K_BASE, BUFFER_PTR2
+ mov BUF, BUFFER_PTR2
+ mov CNT, BLOCKS_CTR
xmm_mov BSWAP_SHUFB_CTL(%rip), YMM_SHUFB_BSWAP
@@ -668,7 +672,6 @@ _loop3:
pop %r14
pop %r13
pop %r12
- pop %rbp
pop %rbx
ret
diff --git a/arch/x86/crypto/sha1_ssse3_asm.S b/arch/x86/crypto/sha1_ssse3_asm.S
index a4109506a5e8..6204bd53528c 100644
--- a/arch/x86/crypto/sha1_ssse3_asm.S
+++ b/arch/x86/crypto/sha1_ssse3_asm.S
@@ -37,7 +37,7 @@
#define REG_A %ecx
#define REG_B %esi
#define REG_C %edi
-#define REG_D %ebp
+#define REG_D %r12d
#define REG_E %edx
#define REG_T1 %eax
@@ -74,10 +74,10 @@
ENTRY(\name)
push %rbx
- push %rbp
push %r12
+ push %rbp
+ mov %rsp, %rbp
- mov %rsp, %r12
sub $64, %rsp # allocate workspace
and $~15, %rsp # align stack
@@ -99,10 +99,9 @@
xor %rax, %rax
rep stosq
- mov %r12, %rsp # deallocate workspace
-
- pop %r12
+ mov %rbp, %rsp # deallocate workspace
pop %rbp
+ pop %r12
pop %rbx
ret
diff --git a/arch/x86/crypto/sha256-avx-asm.S b/arch/x86/crypto/sha256-avx-asm.S
index e08888a1a5f2..001bbcf93c79 100644
--- a/arch/x86/crypto/sha256-avx-asm.S
+++ b/arch/x86/crypto/sha256-avx-asm.S
@@ -103,7 +103,7 @@ SRND = %rsi # clobbers INP
c = %ecx
d = %r8d
e = %edx
-TBL = %rbp
+TBL = %r12
a = %eax
b = %ebx
@@ -350,13 +350,13 @@ a = TMP_
ENTRY(sha256_transform_avx)
.align 32
pushq %rbx
- pushq %rbp
+ pushq %r12
pushq %r13
pushq %r14
pushq %r15
- pushq %r12
+ pushq %rbp
+ movq %rsp, %rbp
- mov %rsp, %r12
subq $STACK_SIZE, %rsp # allocate stack space
and $~15, %rsp # align stack pointer
@@ -452,13 +452,12 @@ loop2:
done_hash:
- mov %r12, %rsp
-
- popq %r12
+ mov %rbp, %rsp
+ popq %rbp
popq %r15
popq %r14
popq %r13
- popq %rbp
+ popq %r12
popq %rbx
ret
ENDPROC(sha256_transform_avx)
diff --git a/arch/x86/crypto/sha256-avx2-asm.S b/arch/x86/crypto/sha256-avx2-asm.S
index 89c8f09787d2..1420db15dcdd 100644
--- a/arch/x86/crypto/sha256-avx2-asm.S
+++ b/arch/x86/crypto/sha256-avx2-asm.S
@@ -98,8 +98,6 @@ d = %r8d
e = %edx # clobbers NUM_BLKS
y3 = %esi # clobbers INP
-
-TBL = %rbp
SRND = CTX # SRND is same register as CTX
a = %eax
@@ -531,7 +529,6 @@ STACK_SIZE = _RSP + _RSP_SIZE
ENTRY(sha256_transform_rorx)
.align 32
pushq %rbx
- pushq %rbp
pushq %r12
pushq %r13
pushq %r14
@@ -568,8 +565,6 @@ ENTRY(sha256_transform_rorx)
mov CTX, _CTX(%rsp)
loop0:
- lea K256(%rip), TBL
-
## Load first 16 dwords from two blocks
VMOVDQ 0*32(INP),XTMP0
VMOVDQ 1*32(INP),XTMP1
@@ -597,19 +592,19 @@ last_block_enter:
.align 16
loop1:
- vpaddd 0*32(TBL, SRND), X0, XFER
+ vpaddd K256+0*32(SRND), X0, XFER
vmovdqa XFER, 0*32+_XFER(%rsp, SRND)
FOUR_ROUNDS_AND_SCHED _XFER + 0*32
- vpaddd 1*32(TBL, SRND), X0, XFER
+ vpaddd K256+1*32(SRND), X0, XFER
vmovdqa XFER, 1*32+_XFER(%rsp, SRND)
FOUR_ROUNDS_AND_SCHED _XFER + 1*32
- vpaddd 2*32(TBL, SRND), X0, XFER
+ vpaddd K256+2*32(SRND), X0, XFER
vmovdqa XFER, 2*32+_XFER(%rsp, SRND)
FOUR_ROUNDS_AND_SCHED _XFER + 2*32
- vpaddd 3*32(TBL, SRND), X0, XFER
+ vpaddd K256+3*32(SRND), X0, XFER
vmovdqa XFER, 3*32+_XFER(%rsp, SRND)
FOUR_ROUNDS_AND_SCHED _XFER + 3*32
@@ -619,10 +614,11 @@ loop1:
loop2:
## Do last 16 rounds with no scheduling
- vpaddd 0*32(TBL, SRND), X0, XFER
+ vpaddd K256+0*32(SRND), X0, XFER
vmovdqa XFER, 0*32+_XFER(%rsp, SRND)
DO_4ROUNDS _XFER + 0*32
- vpaddd 1*32(TBL, SRND), X1, XFER
+
+ vpaddd K256+1*32(SRND), X1, XFER
vmovdqa XFER, 1*32+_XFER(%rsp, SRND)
DO_4ROUNDS _XFER + 1*32
add $2*32, SRND
@@ -676,9 +672,6 @@ loop3:
ja done_hash
do_last_block:
- #### do last block
- lea K256(%rip), TBL
-
VMOVDQ 0*16(INP),XWORD0
VMOVDQ 1*16(INP),XWORD1
VMOVDQ 2*16(INP),XWORD2
@@ -718,7 +711,6 @@ done_hash:
popq %r14
popq %r13
popq %r12
- popq %rbp
popq %rbx
ret
ENDPROC(sha256_transform_rorx)
diff --git a/arch/x86/crypto/sha256-mb/Makefile b/arch/x86/crypto/sha256-mb/Makefile
index 41089e7c400c..45b4fca6c4a8 100644
--- a/arch/x86/crypto/sha256-mb/Makefile
+++ b/arch/x86/crypto/sha256-mb/Makefile
@@ -2,6 +2,8 @@
# Arch-specific CryptoAPI modules.
#
+OBJECT_FILES_NON_STANDARD := y
+
avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\
$(comma)4)$(comma)%ymm2,yes,no)
ifeq ($(avx2_supported),yes)
diff --git a/arch/x86/crypto/sha256-ssse3-asm.S b/arch/x86/crypto/sha256-ssse3-asm.S
index 39b83c93e7fd..c6c05ed2c16a 100644
--- a/arch/x86/crypto/sha256-ssse3-asm.S
+++ b/arch/x86/crypto/sha256-ssse3-asm.S
@@ -95,7 +95,7 @@ SRND = %rsi # clobbers INP
c = %ecx
d = %r8d
e = %edx
-TBL = %rbp
+TBL = %r12
a = %eax
b = %ebx
@@ -356,13 +356,13 @@ a = TMP_
ENTRY(sha256_transform_ssse3)
.align 32
pushq %rbx
- pushq %rbp
+ pushq %r12
pushq %r13
pushq %r14
pushq %r15
- pushq %r12
+ pushq %rbp
+ mov %rsp, %rbp
- mov %rsp, %r12
subq $STACK_SIZE, %rsp
and $~15, %rsp
@@ -462,13 +462,12 @@ loop2:
done_hash:
- mov %r12, %rsp
-
- popq %r12
+ mov %rbp, %rsp
+ popq %rbp
popq %r15
popq %r14
popq %r13
- popq %rbp
+ popq %r12
popq %rbx
ret
diff --git a/arch/x86/crypto/sha512-avx2-asm.S b/arch/x86/crypto/sha512-avx2-asm.S
index 7f5f6c6ec72e..b16d56005162 100644
--- a/arch/x86/crypto/sha512-avx2-asm.S
+++ b/arch/x86/crypto/sha512-avx2-asm.S
@@ -69,8 +69,9 @@ XFER = YTMP0
BYTE_FLIP_MASK = %ymm9
-# 1st arg
-CTX = %rdi
+# 1st arg is %rdi, which is saved to the stack and accessed later via %r12
+CTX1 = %rdi
+CTX2 = %r12
# 2nd arg
INP = %rsi
# 3rd arg
@@ -81,7 +82,7 @@ d = %r8
e = %rdx
y3 = %rsi
-TBL = %rbp
+TBL = %rdi # clobbers CTX1
a = %rax
b = %rbx
@@ -91,26 +92,26 @@ g = %r10
h = %r11
old_h = %r11
-T1 = %r12
+T1 = %r12 # clobbers CTX2
y0 = %r13
y1 = %r14
y2 = %r15
-y4 = %r12
-
# Local variables (stack frame)
XFER_SIZE = 4*8
SRND_SIZE = 1*8
INP_SIZE = 1*8
INPEND_SIZE = 1*8
+CTX_SIZE = 1*8
RSPSAVE_SIZE = 1*8
-GPRSAVE_SIZE = 6*8
+GPRSAVE_SIZE = 5*8
frame_XFER = 0
frame_SRND = frame_XFER + XFER_SIZE
frame_INP = frame_SRND + SRND_SIZE
frame_INPEND = frame_INP + INP_SIZE
-frame_RSPSAVE = frame_INPEND + INPEND_SIZE
+frame_CTX = frame_INPEND + INPEND_SIZE
+frame_RSPSAVE = frame_CTX + CTX_SIZE
frame_GPRSAVE = frame_RSPSAVE + RSPSAVE_SIZE
frame_size = frame_GPRSAVE + GPRSAVE_SIZE
@@ -576,12 +577,11 @@ ENTRY(sha512_transform_rorx)
mov %rax, frame_RSPSAVE(%rsp)
# Save GPRs
- mov %rbp, frame_GPRSAVE(%rsp)
- mov %rbx, 8*1+frame_GPRSAVE(%rsp)
- mov %r12, 8*2+frame_GPRSAVE(%rsp)
- mov %r13, 8*3+frame_GPRSAVE(%rsp)
- mov %r14, 8*4+frame_GPRSAVE(%rsp)
- mov %r15, 8*5+frame_GPRSAVE(%rsp)
+ mov %rbx, 8*0+frame_GPRSAVE(%rsp)
+ mov %r12, 8*1+frame_GPRSAVE(%rsp)
+ mov %r13, 8*2+frame_GPRSAVE(%rsp)
+ mov %r14, 8*3+frame_GPRSAVE(%rsp)
+ mov %r15, 8*4+frame_GPRSAVE(%rsp)
shl $7, NUM_BLKS # convert to bytes
jz done_hash
@@ -589,14 +589,17 @@ ENTRY(sha512_transform_rorx)
mov NUM_BLKS, frame_INPEND(%rsp)
## load initial digest
- mov 8*0(CTX),a
- mov 8*1(CTX),b
- mov 8*2(CTX),c
- mov 8*3(CTX),d
- mov 8*4(CTX),e
- mov 8*5(CTX),f
- mov 8*6(CTX),g
- mov 8*7(CTX),h
+ mov 8*0(CTX1), a
+ mov 8*1(CTX1), b
+ mov 8*2(CTX1), c
+ mov 8*3(CTX1), d
+ mov 8*4(CTX1), e
+ mov 8*5(CTX1), f
+ mov 8*6(CTX1), g
+ mov 8*7(CTX1), h
+
+ # save %rdi (CTX) before it gets clobbered
+ mov %rdi, frame_CTX(%rsp)
vmovdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), BYTE_FLIP_MASK
@@ -652,14 +655,15 @@ loop2:
subq $1, frame_SRND(%rsp)
jne loop2
- addm 8*0(CTX),a
- addm 8*1(CTX),b
- addm 8*2(CTX),c
- addm 8*3(CTX),d
- addm 8*4(CTX),e
- addm 8*5(CTX),f
- addm 8*6(CTX),g
- addm 8*7(CTX),h
+ mov frame_CTX(%rsp), CTX2
+ addm 8*0(CTX2), a
+ addm 8*1(CTX2), b
+ addm 8*2(CTX2), c
+ addm 8*3(CTX2), d
+ addm 8*4(CTX2), e
+ addm 8*5(CTX2), f
+ addm 8*6(CTX2), g
+ addm 8*7(CTX2), h
mov frame_INP(%rsp), INP
add $128, INP
@@ -669,12 +673,11 @@ loop2:
done_hash:
# Restore GPRs
- mov frame_GPRSAVE(%rsp) ,%rbp
- mov 8*1+frame_GPRSAVE(%rsp) ,%rbx
- mov 8*2+frame_GPRSAVE(%rsp) ,%r12
- mov 8*3+frame_GPRSAVE(%rsp) ,%r13
- mov 8*4+frame_GPRSAVE(%rsp) ,%r14
- mov 8*5+frame_GPRSAVE(%rsp) ,%r15
+ mov 8*0+frame_GPRSAVE(%rsp), %rbx
+ mov 8*1+frame_GPRSAVE(%rsp), %r12
+ mov 8*2+frame_GPRSAVE(%rsp), %r13
+ mov 8*3+frame_GPRSAVE(%rsp), %r14
+ mov 8*4+frame_GPRSAVE(%rsp), %r15
# Restore Stack Pointer
mov frame_RSPSAVE(%rsp), %rsp
diff --git a/arch/x86/crypto/sha512-mb/sha512_mb.c b/arch/x86/crypto/sha512-mb/sha512_mb.c
index 2dd3674b5a1e..458409b7568d 100644
--- a/arch/x86/crypto/sha512-mb/sha512_mb.c
+++ b/arch/x86/crypto/sha512-mb/sha512_mb.c
@@ -269,19 +269,19 @@ static struct sha512_hash_ctx
* LAST
*/
ctx->error = HASH_CTX_ERROR_INVALID_FLAGS;
- return ctx;
+ goto unlock;
}
if (ctx->status & HASH_CTX_STS_PROCESSING) {
/* Cannot submit to a currently processing job. */
ctx->error = HASH_CTX_ERROR_ALREADY_PROCESSING;
- return ctx;
+ goto unlock;
}
if ((ctx->status & HASH_CTX_STS_COMPLETE) && !(flags & HASH_FIRST)) {
/* Cannot update a finished job. */
ctx->error = HASH_CTX_ERROR_ALREADY_COMPLETED;
- return ctx;
+ goto unlock;
}
@@ -363,6 +363,7 @@ static struct sha512_hash_ctx
}
ctx = sha512_ctx_mgr_resubmit(mgr, ctx);
+unlock:
spin_unlock_irqrestore(&cstate->work_lock, irqflags);
return ctx;
}
diff --git a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
index b3f49d286348..73b471da3622 100644
--- a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
@@ -76,8 +76,8 @@
#define RT %xmm14
#define RR %xmm15
-#define RID1 %rbp
-#define RID1d %ebp
+#define RID1 %r13
+#define RID1d %r13d
#define RID2 %rsi
#define RID2d %esi
@@ -259,7 +259,7 @@ __twofish_enc_blk8:
vmovdqu w(CTX), RK1;
- pushq %rbp;
+ pushq %r13;
pushq %rbx;
pushq %rcx;
@@ -282,7 +282,7 @@ __twofish_enc_blk8:
popq %rcx;
popq %rbx;
- popq %rbp;
+ popq %r13;
outunpack_blocks(RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2);
outunpack_blocks(RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2);
@@ -301,7 +301,7 @@ __twofish_dec_blk8:
vmovdqu (w+4*4)(CTX), RK1;
- pushq %rbp;
+ pushq %r13;
pushq %rbx;
inpack_blocks(RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2);
@@ -322,7 +322,7 @@ __twofish_dec_blk8:
vmovdqu (w)(CTX), RK1;
popq %rbx;
- popq %rbp;
+ popq %r13;
outunpack_blocks(RA1, RB1, RC1, RD1, RK1, RX0, RY0, RK2);
outunpack_blocks(RA2, RB2, RC2, RD2, RK1, RX0, RY0, RK2);
diff --git a/arch/x86/entry/Makefile b/arch/x86/entry/Makefile
index 9976fcecd17e..af28a8a24366 100644
--- a/arch/x86/entry/Makefile
+++ b/arch/x86/entry/Makefile
@@ -2,7 +2,6 @@
# Makefile for the x86 low level entry code
#
-OBJECT_FILES_NON_STANDARD_entry_$(BITS).o := y
OBJECT_FILES_NON_STANDARD_entry_64_compat.o := y
CFLAGS_syscall_64.o += $(call cc-option,-Wno-override-init,)
diff --git a/arch/x86/entry/calling.h b/arch/x86/entry/calling.h
index 05ed3d393da7..640aafebdc00 100644
--- a/arch/x86/entry/calling.h
+++ b/arch/x86/entry/calling.h
@@ -1,4 +1,5 @@
#include <linux/jump_label.h>
+#include <asm/unwind_hints.h>
/*
@@ -112,6 +113,7 @@ For 32-bit we have the following conventions - kernel is built with
movq %rdx, 12*8+\offset(%rsp)
movq %rsi, 13*8+\offset(%rsp)
movq %rdi, 14*8+\offset(%rsp)
+ UNWIND_HINT_REGS offset=\offset extra=0
.endm
.macro SAVE_C_REGS offset=0
SAVE_C_REGS_HELPER \offset, 1, 1, 1, 1
@@ -136,6 +138,7 @@ For 32-bit we have the following conventions - kernel is built with
movq %r12, 3*8+\offset(%rsp)
movq %rbp, 4*8+\offset(%rsp)
movq %rbx, 5*8+\offset(%rsp)
+ UNWIND_HINT_REGS offset=\offset
.endm
.macro RESTORE_EXTRA_REGS offset=0
@@ -145,6 +148,7 @@ For 32-bit we have the following conventions - kernel is built with
movq 3*8+\offset(%rsp), %r12
movq 4*8+\offset(%rsp), %rbp
movq 5*8+\offset(%rsp), %rbx
+ UNWIND_HINT_REGS offset=\offset extra=0
.endm
.macro RESTORE_C_REGS_HELPER rstor_rax=1, rstor_rcx=1, rstor_r11=1, rstor_r8910=1, rstor_rdx=1
@@ -167,6 +171,7 @@ For 32-bit we have the following conventions - kernel is built with
.endif
movq 13*8(%rsp), %rsi
movq 14*8(%rsp), %rdi
+ UNWIND_HINT_IRET_REGS offset=16*8
.endm
.macro RESTORE_C_REGS
RESTORE_C_REGS_HELPER 1,1,1,1,1
diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
index cdefcfdd9e63..03505ffbe1b6 100644
--- a/arch/x86/entry/common.c
+++ b/arch/x86/entry/common.c
@@ -23,6 +23,7 @@
#include <linux/user-return-notifier.h>
#include <linux/uprobes.h>
#include <linux/livepatch.h>
+#include <linux/syscalls.h>
#include <asm/desc.h>
#include <asm/traps.h>
@@ -183,6 +184,8 @@ __visible inline void prepare_exit_to_usermode(struct pt_regs *regs)
struct thread_info *ti = current_thread_info();
u32 cached_flags;
+ addr_limit_user_check();
+
if (IS_ENABLED(CONFIG_PROVE_LOCKING) && WARN_ON(!irqs_disabled()))
local_irq_disable();
diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index 48ef7bb32c42..50e0d2bc4528 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -176,7 +176,7 @@
/*
* This is a sneaky trick to help the unwinder find pt_regs on the stack. The
* frame pointer is replaced with an encoded pointer to pt_regs. The encoding
- * is just setting the LSB, which makes it an invalid stack address and is also
+ * is just clearing the MSB, which makes it an invalid stack address and is also
* a signal to the unwinder that it's a pt_regs pointer in disguise.
*
* NOTE: This macro must be used *after* SAVE_ALL because it corrupts the
@@ -185,7 +185,7 @@
.macro ENCODE_FRAME_POINTER
#ifdef CONFIG_FRAME_POINTER
mov %esp, %ebp
- orl $0x1, %ebp
+ andl $0x7fffffff, %ebp
#endif
.endm
@@ -673,16 +673,8 @@ ENTRY(name) \
jmp ret_from_intr; \
ENDPROC(name)
-
-#ifdef CONFIG_TRACING
-# define TRACE_BUILD_INTERRUPT(name, nr) BUILD_INTERRUPT3(trace_##name, nr, smp_trace_##name)
-#else
-# define TRACE_BUILD_INTERRUPT(name, nr)
-#endif
-
#define BUILD_INTERRUPT(name, nr) \
BUILD_INTERRUPT3(name, nr, smp_##name); \
- TRACE_BUILD_INTERRUPT(name, nr)
/* The include is where all of the SMP etc. interrupts come from */
#include <asm/entry_arch.h>
@@ -880,25 +872,17 @@ ENTRY(xen_failsafe_callback)
ENDPROC(xen_failsafe_callback)
BUILD_INTERRUPT3(xen_hvm_callback_vector, HYPERVISOR_CALLBACK_VECTOR,
- xen_evtchn_do_upcall)
+ xen_evtchn_do_upcall)
#endif /* CONFIG_XEN */
#if IS_ENABLED(CONFIG_HYPERV)
BUILD_INTERRUPT3(hyperv_callback_vector, HYPERVISOR_CALLBACK_VECTOR,
- hyperv_vector_handler)
+ hyperv_vector_handler)
#endif /* CONFIG_HYPERV */
-#ifdef CONFIG_TRACING
-ENTRY(trace_page_fault)
- ASM_CLAC
- pushl $trace_do_page_fault
- jmp common_exception
-END(trace_page_fault)
-#endif
-
ENTRY(page_fault)
ASM_CLAC
pushl $do_page_fault
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 4a4c0834f965..49167258d587 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -36,6 +36,7 @@
#include <asm/smap.h>
#include <asm/pgtable_types.h>
#include <asm/export.h>
+#include <asm/frame.h>
#include <linux/err.h>
.code64
@@ -43,9 +44,10 @@
#ifdef CONFIG_PARAVIRT
ENTRY(native_usergs_sysret64)
+ UNWIND_HINT_EMPTY
swapgs
sysretq
-ENDPROC(native_usergs_sysret64)
+END(native_usergs_sysret64)
#endif /* CONFIG_PARAVIRT */
.macro TRACE_IRQS_IRETQ
@@ -134,19 +136,14 @@ ENDPROC(native_usergs_sysret64)
*/
ENTRY(entry_SYSCALL_64)
+ UNWIND_HINT_EMPTY
/*
* Interrupts are off on entry.
* We do not frame this tiny irq-off block with TRACE_IRQS_OFF/ON,
* it is too small to ever cause noticeable irq latency.
*/
- SWAPGS_UNSAFE_STACK
- /*
- * A hypervisor implementation might want to use a label
- * after the swapgs, so that it can do the swapgs
- * for the guest and jump here on syscall.
- */
-GLOBAL(entry_SYSCALL_64_after_swapgs)
+ swapgs
movq %rsp, PER_CPU_VAR(rsp_scratch)
movq PER_CPU_VAR(cpu_current_top_of_stack), %rsp
@@ -158,6 +155,7 @@ GLOBAL(entry_SYSCALL_64_after_swapgs)
pushq %r11 /* pt_regs->flags */
pushq $__USER_CS /* pt_regs->cs */
pushq %rcx /* pt_regs->ip */
+GLOBAL(entry_SYSCALL_64_after_hwframe)
pushq %rax /* pt_regs->orig_ax */
pushq %rdi /* pt_regs->di */
pushq %rsi /* pt_regs->si */
@@ -169,6 +167,7 @@ GLOBAL(entry_SYSCALL_64_after_swapgs)
pushq %r10 /* pt_regs->r10 */
pushq %r11 /* pt_regs->r11 */
sub $(6*8), %rsp /* pt_regs->bp, bx, r12-15 not saved */
+ UNWIND_HINT_REGS extra=0
/*
* If we need to do entry work or if we guess we'll need to do
@@ -223,6 +222,7 @@ entry_SYSCALL_64_fastpath:
movq EFLAGS(%rsp), %r11
RESTORE_C_REGS_EXCEPT_RCX_R11
movq RSP(%rsp), %rsp
+ UNWIND_HINT_EMPTY
USERGS_SYSRET64
1:
@@ -265,7 +265,8 @@ return_from_SYSCALL_64:
* If width of "canonical tail" ever becomes variable, this will need
* to be updated to remain correct on both old and new CPUs.
*
- * Change top 16 bits to be the sign-extension of 47th bit
+ * Change top bits to match most significant bit (47th or 56th bit
+ * depending on paging mode) in the address.
*/
shl $(64 - (__VIRTUAL_MASK_SHIFT+1)), %rcx
sar $(64 - (__VIRTUAL_MASK_SHIFT+1)), %rcx
@@ -315,6 +316,7 @@ syscall_return_via_sysret:
/* rcx and r11 are already restored (see code above) */
RESTORE_C_REGS_EXCEPT_RCX_R11
movq RSP(%rsp), %rsp
+ UNWIND_HINT_EMPTY
USERGS_SYSRET64
opportunistic_sysret_failed:
@@ -342,6 +344,7 @@ ENTRY(stub_ptregs_64)
DISABLE_INTERRUPTS(CLBR_ANY)
TRACE_IRQS_OFF
popq %rax
+ UNWIND_HINT_REGS extra=0
jmp entry_SYSCALL64_slow_path
1:
@@ -350,6 +353,7 @@ END(stub_ptregs_64)
.macro ptregs_stub func
ENTRY(ptregs_\func)
+ UNWIND_HINT_FUNC
leaq \func(%rip), %rax
jmp stub_ptregs_64
END(ptregs_\func)
@@ -366,6 +370,7 @@ END(ptregs_\func)
* %rsi: next task
*/
ENTRY(__switch_to_asm)
+ UNWIND_HINT_FUNC
/*
* Save callee-saved registers
* This must match the order in inactive_task_frame
@@ -405,6 +410,7 @@ END(__switch_to_asm)
* r12: kernel thread arg
*/
ENTRY(ret_from_fork)
+ UNWIND_HINT_EMPTY
movq %rax, %rdi
call schedule_tail /* rdi: 'prev' task parameter */
@@ -412,6 +418,7 @@ ENTRY(ret_from_fork)
jnz 1f /* kernel threads are uncommon */
2:
+ UNWIND_HINT_REGS
movq %rsp, %rdi
call syscall_return_slowpath /* returns with IRQs disabled */
TRACE_IRQS_ON /* user mode is traced as IRQS on */
@@ -439,13 +446,102 @@ END(ret_from_fork)
ENTRY(irq_entries_start)
vector=FIRST_EXTERNAL_VECTOR
.rept (FIRST_SYSTEM_VECTOR - FIRST_EXTERNAL_VECTOR)
+ UNWIND_HINT_IRET_REGS
pushq $(~vector+0x80) /* Note: always in signed byte range */
- vector=vector+1
jmp common_interrupt
.align 8
+ vector=vector+1
.endr
END(irq_entries_start)
+.macro DEBUG_ENTRY_ASSERT_IRQS_OFF
+#ifdef CONFIG_DEBUG_ENTRY
+ pushfq
+ testl $X86_EFLAGS_IF, (%rsp)
+ jz .Lokay_\@
+ ud2
+.Lokay_\@:
+ addq $8, %rsp
+#endif
+.endm
+
+/*
+ * Enters the IRQ stack if we're not already using it. NMI-safe. Clobbers
+ * flags and puts old RSP into old_rsp, and leaves all other GPRs alone.
+ * Requires kernel GSBASE.
+ *
+ * The invariant is that, if irq_count != -1, then the IRQ stack is in use.
+ */
+.macro ENTER_IRQ_STACK regs=1 old_rsp
+ DEBUG_ENTRY_ASSERT_IRQS_OFF
+ movq %rsp, \old_rsp
+
+ .if \regs
+ UNWIND_HINT_REGS base=\old_rsp
+ .endif
+
+ incl PER_CPU_VAR(irq_count)
+ jnz .Lirq_stack_push_old_rsp_\@
+
+ /*
+ * Right now, if we just incremented irq_count to zero, we've
+ * claimed the IRQ stack but we haven't switched to it yet.
+ *
+ * If anything is added that can interrupt us here without using IST,
+ * it must be *extremely* careful to limit its stack usage. This
+ * could include kprobes and a hypothetical future IST-less #DB
+ * handler.
+ *
+ * The OOPS unwinder relies on the word at the top of the IRQ
+ * stack linking back to the previous RSP for the entire time we're
+ * on the IRQ stack. For this to work reliably, we need to write
+ * it before we actually move ourselves to the IRQ stack.
+ */
+
+ movq \old_rsp, PER_CPU_VAR(irq_stack_union + IRQ_STACK_SIZE - 8)
+ movq PER_CPU_VAR(irq_stack_ptr), %rsp
+
+#ifdef CONFIG_DEBUG_ENTRY
+ /*
+ * If the first movq above becomes wrong due to IRQ stack layout
+ * changes, the only way we'll notice is if we try to unwind right
+ * here. Assert that we set up the stack right to catch this type
+ * of bug quickly.
+ */
+ cmpq -8(%rsp), \old_rsp
+ je .Lirq_stack_okay\@
+ ud2
+ .Lirq_stack_okay\@:
+#endif
+
+.Lirq_stack_push_old_rsp_\@:
+ pushq \old_rsp
+
+ .if \regs
+ UNWIND_HINT_REGS indirect=1
+ .endif
+.endm
+
+/*
+ * Undoes ENTER_IRQ_STACK.
+ */
+.macro LEAVE_IRQ_STACK regs=1
+ DEBUG_ENTRY_ASSERT_IRQS_OFF
+ /* We need to be off the IRQ stack before decrementing irq_count. */
+ popq %rsp
+
+ .if \regs
+ UNWIND_HINT_REGS
+ .endif
+
+ /*
+ * As in ENTER_IRQ_STACK, irq_count == 0, we are still claiming
+ * the irq stack but we're not on it.
+ */
+
+ decl PER_CPU_VAR(irq_count)
+.endm
+
/*
* Interrupt entry/exit.
*
@@ -484,17 +580,7 @@ END(irq_entries_start)
CALL_enter_from_user_mode
1:
- /*
- * Save previous stack pointer, optionally switch to interrupt stack.
- * irq_count is used to check if a CPU is already on an interrupt stack
- * or not. While this is essentially redundant with preempt_count it is
- * a little cheaper to use a separate counter in the PDA (short of
- * moving irq_enter into assembly, which would be too much work)
- */
- movq %rsp, %rdi
- incl PER_CPU_VAR(irq_count)
- cmovzq PER_CPU_VAR(irq_stack_ptr), %rsp
- pushq %rdi
+ ENTER_IRQ_STACK old_rsp=%rdi
/* We entered an interrupt context - irqs are off: */
TRACE_IRQS_OFF
@@ -514,10 +600,8 @@ common_interrupt:
ret_from_intr:
DISABLE_INTERRUPTS(CLBR_ANY)
TRACE_IRQS_OFF
- decl PER_CPU_VAR(irq_count)
- /* Restore saved previous stack */
- popq %rsp
+ LEAVE_IRQ_STACK
testb $3, CS(%rsp)
jz retint_kernel
@@ -560,6 +644,7 @@ restore_c_regs_and_iret:
INTERRUPT_RETURN
ENTRY(native_iret)
+ UNWIND_HINT_IRET_REGS
/*
* Are we returning to a stack segment from the LDT? Note: in
* 64-bit mode SS:RSP on the exception stack is always valid.
@@ -632,6 +717,7 @@ native_irq_return_ldt:
orq PER_CPU_VAR(espfix_stack), %rax
SWAPGS
movq %rax, %rsp
+ UNWIND_HINT_IRET_REGS offset=8
/*
* At this point, we cannot write to the stack any more, but we can
@@ -653,6 +739,7 @@ END(common_interrupt)
*/
.macro apicinterrupt3 num sym do_sym
ENTRY(\sym)
+ UNWIND_HINT_IRET_REGS
ASM_CLAC
pushq $~(\num)
.Lcommon_\sym:
@@ -661,31 +748,13 @@ ENTRY(\sym)
END(\sym)
.endm
-#ifdef CONFIG_TRACING
-#define trace(sym) trace_##sym
-#define smp_trace(sym) smp_trace_##sym
-
-.macro trace_apicinterrupt num sym
-apicinterrupt3 \num trace(\sym) smp_trace(\sym)
-.endm
-#else
-.macro trace_apicinterrupt num sym do_sym
-.endm
-#endif
-
/* Make sure APIC interrupt handlers end up in the irqentry section: */
-#if defined(CONFIG_FUNCTION_GRAPH_TRACER) || defined(CONFIG_KASAN)
-# define PUSH_SECTION_IRQENTRY .pushsection .irqentry.text, "ax"
-# define POP_SECTION_IRQENTRY .popsection
-#else
-# define PUSH_SECTION_IRQENTRY
-# define POP_SECTION_IRQENTRY
-#endif
+#define PUSH_SECTION_IRQENTRY .pushsection .irqentry.text, "ax"
+#define POP_SECTION_IRQENTRY .popsection
.macro apicinterrupt num sym do_sym
PUSH_SECTION_IRQENTRY
apicinterrupt3 \num \sym \do_sym
-trace_apicinterrupt \num \sym
POP_SECTION_IRQENTRY
.endm
@@ -704,6 +773,7 @@ apicinterrupt X86_PLATFORM_IPI_VECTOR x86_platform_ipi smp_x86_platform_ipi
#ifdef CONFIG_HAVE_KVM
apicinterrupt3 POSTED_INTR_VECTOR kvm_posted_intr_ipi smp_kvm_posted_intr_ipi
apicinterrupt3 POSTED_INTR_WAKEUP_VECTOR kvm_posted_intr_wakeup_ipi smp_kvm_posted_intr_wakeup_ipi
+apicinterrupt3 POSTED_INTR_NESTED_VECTOR kvm_posted_intr_nested_ipi smp_kvm_posted_intr_nested_ipi
#endif
#ifdef CONFIG_X86_MCE_THRESHOLD
@@ -738,13 +808,14 @@ apicinterrupt IRQ_WORK_VECTOR irq_work_interrupt smp_irq_work_interrupt
.macro idtentry sym do_sym has_error_code:req paranoid=0 shift_ist=-1
ENTRY(\sym)
+ UNWIND_HINT_IRET_REGS offset=8
+
/* Sanity check */
.if \shift_ist != -1 && \paranoid == 0
.error "using shift_ist requires paranoid=1"
.endif
ASM_CLAC
- PARAVIRT_ADJUST_EXCEPTION_FRAME
.ifeq \has_error_code
pushq $-1 /* ORIG_RAX: no syscall to restart */
@@ -761,6 +832,7 @@ ENTRY(\sym)
.else
call error_entry
.endif
+ UNWIND_HINT_REGS
/* returned flag: ebx=0: need swapgs on exit, ebx=1: don't need it */
.if \paranoid
@@ -827,17 +899,6 @@ ENTRY(\sym)
END(\sym)
.endm
-#ifdef CONFIG_TRACING
-.macro trace_idtentry sym do_sym has_error_code:req
-idtentry trace(\sym) trace(\do_sym) has_error_code=\has_error_code
-idtentry \sym \do_sym has_error_code=\has_error_code
-.endm
-#else
-.macro trace_idtentry sym do_sym has_error_code:req
-idtentry \sym \do_sym has_error_code=\has_error_code
-.endm
-#endif
-
idtentry divide_error do_divide_error has_error_code=0
idtentry overflow do_overflow has_error_code=0
idtentry bounds do_bounds has_error_code=0
@@ -858,6 +919,7 @@ idtentry simd_coprocessor_error do_simd_coprocessor_error has_error_code=0
* edi: new selector
*/
ENTRY(native_load_gs_index)
+ FRAME_BEGIN
pushfq
DISABLE_INTERRUPTS(CLBR_ANY & ~CLBR_RDI)
SWAPGS
@@ -866,8 +928,9 @@ ENTRY(native_load_gs_index)
2: ALTERNATIVE "", "mfence", X86_BUG_SWAPGS_FENCE
SWAPGS
popfq
+ FRAME_END
ret
-END(native_load_gs_index)
+ENDPROC(native_load_gs_index)
EXPORT_SYMBOL(native_load_gs_index)
_ASM_EXTABLE(.Lgs_change, bad_gs)
@@ -890,17 +953,15 @@ bad_gs:
ENTRY(do_softirq_own_stack)
pushq %rbp
mov %rsp, %rbp
- incl PER_CPU_VAR(irq_count)
- cmove PER_CPU_VAR(irq_stack_ptr), %rsp
- push %rbp /* frame pointer backlink */
+ ENTER_IRQ_STACK regs=0 old_rsp=%r11
call __do_softirq
+ LEAVE_IRQ_STACK regs=0
leaveq
- decl PER_CPU_VAR(irq_count)
ret
-END(do_softirq_own_stack)
+ENDPROC(do_softirq_own_stack)
#ifdef CONFIG_XEN
-idtentry xen_hypervisor_callback xen_do_hypervisor_callback has_error_code=0
+idtentry hypervisor_callback xen_do_hypervisor_callback has_error_code=0
/*
* A note on the "critical region" in our callback handler.
@@ -921,14 +982,14 @@ ENTRY(xen_do_hypervisor_callback) /* do_hypervisor_callback(struct *pt_regs) */
* Since we don't modify %rdi, evtchn_do_upall(struct *pt_regs) will
* see the correct pointer to the pt_regs
*/
+ UNWIND_HINT_FUNC
movq %rdi, %rsp /* we don't return, adjust the stack frame */
-11: incl PER_CPU_VAR(irq_count)
- movq %rsp, %rbp
- cmovzq PER_CPU_VAR(irq_stack_ptr), %rsp
- pushq %rbp /* frame pointer backlink */
+ UNWIND_HINT_REGS
+
+ ENTER_IRQ_STACK old_rsp=%r10
call xen_evtchn_do_upcall
- popq %rsp
- decl PER_CPU_VAR(irq_count)
+ LEAVE_IRQ_STACK
+
#ifndef CONFIG_PREEMPT
call xen_maybe_preempt_hcall
#endif
@@ -949,6 +1010,7 @@ END(xen_do_hypervisor_callback)
* with its current contents: any discrepancy means we in category 1.
*/
ENTRY(xen_failsafe_callback)
+ UNWIND_HINT_EMPTY
movl %ds, %ecx
cmpw %cx, 0x10(%rsp)
jne 1f
@@ -966,13 +1028,13 @@ ENTRY(xen_failsafe_callback)
movq 8(%rsp), %r11
addq $0x30, %rsp
pushq $0 /* RIP */
- pushq %r11
- pushq %rcx
+ UNWIND_HINT_IRET_REGS offset=8
jmp general_protection
1: /* Segment mismatch => Category 1 (Bad segment). Retry the IRET. */
movq (%rsp), %rcx
movq 8(%rsp), %r11
addq $0x30, %rsp
+ UNWIND_HINT_IRET_REGS
pushq $-1 /* orig_ax = -1 => not a system call */
ALLOC_PT_GPREGS_ON_STACK
SAVE_C_REGS
@@ -996,13 +1058,12 @@ idtentry int3 do_int3 has_error_code=0 paranoid=1 shift_ist=DEBUG_STACK
idtentry stack_segment do_stack_segment has_error_code=1
#ifdef CONFIG_XEN
-idtentry xen_debug do_debug has_error_code=0
-idtentry xen_int3 do_int3 has_error_code=0
-idtentry xen_stack_segment do_stack_segment has_error_code=1
+idtentry xendebug do_debug has_error_code=0
+idtentry xenint3 do_int3 has_error_code=0
#endif
idtentry general_protection do_general_protection has_error_code=1
-trace_idtentry page_fault do_page_fault has_error_code=1
+idtentry page_fault do_page_fault has_error_code=1
#ifdef CONFIG_KVM_GUEST
idtentry async_page_fault do_async_page_fault has_error_code=1
@@ -1018,6 +1079,7 @@ idtentry machine_check has_error_code=0 paranoid=1 do_sym=*machine_check_vec
* Return: ebx=0: need swapgs on exit, ebx=1: otherwise
*/
ENTRY(paranoid_entry)
+ UNWIND_HINT_FUNC
cld
SAVE_C_REGS 8
SAVE_EXTRA_REGS 8
@@ -1045,6 +1107,7 @@ END(paranoid_entry)
* On entry, ebx is "no swapgs" flag (1: don't need swapgs, 0: need it)
*/
ENTRY(paranoid_exit)
+ UNWIND_HINT_REGS
DISABLE_INTERRUPTS(CLBR_ANY)
TRACE_IRQS_OFF_DEBUG
testl %ebx, %ebx /* swapgs needed? */
@@ -1066,6 +1129,7 @@ END(paranoid_exit)
* Return: EBX=0: came from user mode; EBX=1: otherwise
*/
ENTRY(error_entry)
+ UNWIND_HINT_FUNC
cld
SAVE_C_REGS 8
SAVE_EXTRA_REGS 8
@@ -1150,6 +1214,7 @@ END(error_entry)
* 0: user gsbase is loaded, we need SWAPGS and standard preparation for return to usermode
*/
ENTRY(error_exit)
+ UNWIND_HINT_REGS
DISABLE_INTERRUPTS(CLBR_ANY)
TRACE_IRQS_OFF
testl %ebx, %ebx
@@ -1158,19 +1223,9 @@ ENTRY(error_exit)
END(error_exit)
/* Runs on exception stack */
+/* XXX: broken on Xen PV */
ENTRY(nmi)
- /*
- * Fix up the exception frame if we're on Xen.
- * PARAVIRT_ADJUST_EXCEPTION_FRAME is guaranteed to push at most
- * one value to the stack on native, so it may clobber the rdx
- * scratch slot, but it won't clobber any of the important
- * slots past it.
- *
- * Xen is a different story, because the Xen frame itself overlaps
- * the "NMI executing" variable.
- */
- PARAVIRT_ADJUST_EXCEPTION_FRAME
-
+ UNWIND_HINT_IRET_REGS
/*
* We allow breakpoints in NMIs. If a breakpoint occurs, then
* the iretq it performs will take us out of NMI context.
@@ -1209,6 +1264,8 @@ ENTRY(nmi)
* other IST entries.
*/
+ ASM_CLAC
+
/* Use %rdx as our temp variable throughout */
pushq %rdx
@@ -1230,11 +1287,13 @@ ENTRY(nmi)
cld
movq %rsp, %rdx
movq PER_CPU_VAR(cpu_current_top_of_stack), %rsp
+ UNWIND_HINT_IRET_REGS base=%rdx offset=8
pushq 5*8(%rdx) /* pt_regs->ss */
pushq 4*8(%rdx) /* pt_regs->rsp */
pushq 3*8(%rdx) /* pt_regs->flags */
pushq 2*8(%rdx) /* pt_regs->cs */
pushq 1*8(%rdx) /* pt_regs->rip */
+ UNWIND_HINT_IRET_REGS
pushq $-1 /* pt_regs->orig_ax */
pushq %rdi /* pt_regs->di */
pushq %rsi /* pt_regs->si */
@@ -1251,6 +1310,7 @@ ENTRY(nmi)
pushq %r13 /* pt_regs->r13 */
pushq %r14 /* pt_regs->r14 */
pushq %r15 /* pt_regs->r15 */
+ UNWIND_HINT_REGS
ENCODE_FRAME_POINTER
/*
@@ -1405,6 +1465,7 @@ first_nmi:
.rept 5
pushq 11*8(%rsp)
.endr
+ UNWIND_HINT_IRET_REGS
/* Everything up to here is safe from nested NMIs */
@@ -1420,6 +1481,7 @@ first_nmi:
pushq $__KERNEL_CS /* CS */
pushq $1f /* RIP */
INTERRUPT_RETURN /* continues at repeat_nmi below */
+ UNWIND_HINT_IRET_REGS
1:
#endif
@@ -1469,6 +1531,7 @@ end_repeat_nmi:
* exceptions might do.
*/
call paranoid_entry
+ UNWIND_HINT_REGS
/* paranoidentry do_nmi, 0; without TRACE_IRQS_OFF */
movq %rsp, %rdi
@@ -1506,17 +1569,19 @@ nmi_restore:
END(nmi)
ENTRY(ignore_sysret)
+ UNWIND_HINT_EMPTY
mov $-ENOSYS, %eax
sysret
END(ignore_sysret)
ENTRY(rewind_stack_do_exit)
+ UNWIND_HINT_FUNC
/* Prevent any naive code from trying to unwind to our caller. */
xorl %ebp, %ebp
movq PER_CPU_VAR(cpu_current_top_of_stack), %rax
- leaq -TOP_OF_KERNEL_STACK_PADDING-PTREGS_SIZE(%rax), %rsp
+ leaq -PTREGS_SIZE(%rax), %rsp
+ UNWIND_HINT_FUNC sp_offset=PTREGS_SIZE
call do_exit
-1: jmp 1b
END(rewind_stack_do_exit)
diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S
index e1721dafbcb1..e26c25ca7756 100644
--- a/arch/x86/entry/entry_64_compat.S
+++ b/arch/x86/entry/entry_64_compat.S
@@ -183,21 +183,20 @@ ENDPROC(entry_SYSENTER_compat)
*/
ENTRY(entry_SYSCALL_compat)
/* Interrupts are off on entry. */
- SWAPGS_UNSAFE_STACK
+ swapgs
/* Stash user ESP and switch to the kernel stack. */
movl %esp, %r8d
movq PER_CPU_VAR(cpu_current_top_of_stack), %rsp
- /* Zero-extending 32-bit regs, do not remove */
- movl %eax, %eax
-
/* Construct struct pt_regs on stack */
pushq $__USER32_DS /* pt_regs->ss */
pushq %r8 /* pt_regs->sp */
pushq %r11 /* pt_regs->flags */
pushq $__USER32_CS /* pt_regs->cs */
pushq %rcx /* pt_regs->ip */
+GLOBAL(entry_SYSCALL_compat_after_hwframe)
+ movl %eax, %eax /* discard orig_ax high bits */
pushq %rax /* pt_regs->orig_ax */
pushq %rdi /* pt_regs->di */
pushq %rsi /* pt_regs->si */
@@ -294,7 +293,6 @@ ENTRY(entry_INT80_compat)
/*
* Interrupts are off on entry.
*/
- PARAVIRT_ADJUST_EXCEPTION_FRAME
ASM_CLAC /* Do this early to minimize exposure */
SWAPGS
@@ -342,8 +340,7 @@ ENTRY(entry_INT80_compat)
jmp restore_regs_and_iret
END(entry_INT80_compat)
- ALIGN
-GLOBAL(stub32_clone)
+ENTRY(stub32_clone)
/*
* The 32-bit clone ABI is: clone(..., int tls_val, int *child_tidptr).
* The 64-bit clone ABI is: clone(..., int *child_tidptr, int tls_val).
@@ -353,3 +350,4 @@ GLOBAL(stub32_clone)
*/
xchg %r8, %rcx
jmp sys_clone
+ENDPROC(stub32_clone)
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index 139ad7726e10..1911310959f8 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -78,9 +78,6 @@ static int vdso_mremap(const struct vm_special_mapping *sm,
if (image->size != new_size)
return -EINVAL;
- if (WARN_ON_ONCE(current->mm != new_vma->vm_mm))
- return -EFAULT;
-
vdso_fix_landing(image, new_vma);
current->mm->context.vdso = (void __user *)new_vma->vm_start;
@@ -354,7 +351,7 @@ static void vgetcpu_cpu_init(void *arg)
* and 8 bits for the node)
*/
d.limit0 = cpu | ((node & 0xf) << 12);
- d.limit = node >> 4;
+ d.limit1 = node >> 4;
d.type = 5; /* RO data, expand down, accessed */
d.dpl = 3; /* Visible to user code */
d.s = 1; /* Not a system segment */
diff --git a/arch/x86/events/amd/uncore.c b/arch/x86/events/amd/uncore.c
index ad44af0dd667..f5cbbba99283 100644
--- a/arch/x86/events/amd/uncore.c
+++ b/arch/x86/events/amd/uncore.c
@@ -400,11 +400,24 @@ static int amd_uncore_cpu_starting(unsigned int cpu)
if (amd_uncore_llc) {
unsigned int apicid = cpu_data(cpu).apicid;
- unsigned int nshared;
+ unsigned int nshared, subleaf, prev_eax = 0;
uncore = *per_cpu_ptr(amd_uncore_llc, cpu);
- cpuid_count(0x8000001d, 2, &eax, &ebx, &ecx, &edx);
- nshared = ((eax >> 14) & 0xfff) + 1;
+ /*
+ * Iterate over Cache Topology Definition leaves until no
+ * more cache descriptions are available.
+ */
+ for (subleaf = 0; subleaf < 5; subleaf++) {
+ cpuid_count(0x8000001d, subleaf, &eax, &ebx, &ecx, &edx);
+
+ /* EAX[0:4] gives type of cache */
+ if (!(eax & 0x1f))
+ break;
+
+ prev_eax = eax;
+ }
+ nshared = ((prev_eax >> 14) & 0xfff) + 1;
+
uncore->id = apicid - (apicid % nshared);
uncore = amd_uncore_find_online_sibling(uncore, amd_uncore_llc);
@@ -555,7 +568,7 @@ static int __init amd_uncore_init(void)
ret = 0;
}
- if (boot_cpu_has(X86_FEATURE_PERFCTR_L2)) {
+ if (boot_cpu_has(X86_FEATURE_PERFCTR_LLC)) {
amd_uncore_llc = alloc_percpu(struct amd_uncore *);
if (!amd_uncore_llc) {
ret = -ENOMEM;
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 580b60f5ac83..80534d3c2480 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -191,8 +191,8 @@ static void release_pmc_hardware(void) {}
static bool check_hw_exists(void)
{
- u64 val, val_fail, val_new= ~0;
- int i, reg, reg_fail, ret = 0;
+ u64 val, val_fail = -1, val_new= ~0;
+ int i, reg, reg_fail = -1, ret = 0;
int bios_fail = 0;
int reg_safe = -1;
@@ -487,22 +487,28 @@ static inline int precise_br_compat(struct perf_event *event)
return m == b;
}
-int x86_pmu_hw_config(struct perf_event *event)
+int x86_pmu_max_precise(void)
{
- if (event->attr.precise_ip) {
- int precise = 0;
+ int precise = 0;
+
+ /* Support for constant skid */
+ if (x86_pmu.pebs_active && !x86_pmu.pebs_broken) {
+ precise++;
- /* Support for constant skid */
- if (x86_pmu.pebs_active && !x86_pmu.pebs_broken) {
+ /* Support for IP fixup */
+ if (x86_pmu.lbr_nr || x86_pmu.intel_cap.pebs_format >= 2)
precise++;
- /* Support for IP fixup */
- if (x86_pmu.lbr_nr || x86_pmu.intel_cap.pebs_format >= 2)
- precise++;
+ if (x86_pmu.pebs_prec_dist)
+ precise++;
+ }
+ return precise;
+}
- if (x86_pmu.pebs_prec_dist)
- precise++;
- }
+int x86_pmu_hw_config(struct perf_event *event)
+{
+ if (event->attr.precise_ip) {
+ int precise = x86_pmu_max_precise();
if (event->attr.precise_ip > precise)
return -EOPNOTSUPP;
@@ -1750,6 +1756,9 @@ ssize_t x86_event_sysfs_show(char *page, u64 config, u64 event)
return ret;
}
+static struct attribute_group x86_pmu_attr_group;
+static struct attribute_group x86_pmu_caps_group;
+
static int __init init_hw_perf_events(void)
{
struct x86_pmu_quirk *quirk;
@@ -1797,6 +1806,14 @@ static int __init init_hw_perf_events(void)
x86_pmu_format_group.attrs = x86_pmu.format_attrs;
+ if (x86_pmu.caps_attrs) {
+ struct attribute **tmp;
+
+ tmp = merge_attr(x86_pmu_caps_group.attrs, x86_pmu.caps_attrs);
+ if (!WARN_ON(!tmp))
+ x86_pmu_caps_group.attrs = tmp;
+ }
+
if (x86_pmu.event_attrs)
x86_pmu_events_group.attrs = x86_pmu.event_attrs;
@@ -1813,6 +1830,14 @@ static int __init init_hw_perf_events(void)
x86_pmu_events_group.attrs = tmp;
}
+ if (x86_pmu.attrs) {
+ struct attribute **tmp;
+
+ tmp = merge_attr(x86_pmu_attr_group.attrs, x86_pmu.attrs);
+ if (!WARN_ON(!tmp))
+ x86_pmu_attr_group.attrs = tmp;
+ }
+
pr_info("... version: %d\n", x86_pmu.version);
pr_info("... bit width: %d\n", x86_pmu.cntval_bits);
pr_info("... generic registers: %d\n", x86_pmu.num_counters);
@@ -2101,11 +2126,10 @@ static int x86_pmu_event_init(struct perf_event *event)
static void refresh_pce(void *ignored)
{
- if (current->active_mm)
- load_mm_cr4(current->active_mm);
+ load_mm_cr4(this_cpu_read(cpu_tlbstate.loaded_mm));
}
-static void x86_pmu_event_mapped(struct perf_event *event)
+static void x86_pmu_event_mapped(struct perf_event *event, struct mm_struct *mm)
{
if (!(event->hw.flags & PERF_X86_EVENT_RDPMC_ALLOWED))
return;
@@ -2120,22 +2144,20 @@ static void x86_pmu_event_mapped(struct perf_event *event)
* For now, this can't happen because all callers hold mmap_sem
* for write. If this changes, we'll need a different solution.
*/
- lockdep_assert_held_exclusive(&current->mm->mmap_sem);
+ lockdep_assert_held_exclusive(&mm->mmap_sem);
- if (atomic_inc_return(&current->mm->context.perf_rdpmc_allowed) == 1)
- on_each_cpu_mask(mm_cpumask(current->mm), refresh_pce, NULL, 1);
+ if (atomic_inc_return(&mm->context.perf_rdpmc_allowed) == 1)
+ on_each_cpu_mask(mm_cpumask(mm), refresh_pce, NULL, 1);
}
-static void x86_pmu_event_unmapped(struct perf_event *event)
+static void x86_pmu_event_unmapped(struct perf_event *event, struct mm_struct *mm)
{
- if (!current->mm)
- return;
if (!(event->hw.flags & PERF_X86_EVENT_RDPMC_ALLOWED))
return;
- if (atomic_dec_and_test(&current->mm->context.perf_rdpmc_allowed))
- on_each_cpu_mask(mm_cpumask(current->mm), refresh_pce, NULL, 1);
+ if (atomic_dec_and_test(&mm->context.perf_rdpmc_allowed))
+ on_each_cpu_mask(mm_cpumask(mm), refresh_pce, NULL, 1);
}
static int x86_pmu_event_idx(struct perf_event *event)
@@ -2206,10 +2228,30 @@ static struct attribute_group x86_pmu_attr_group = {
.attrs = x86_pmu_attrs,
};
+static ssize_t max_precise_show(struct device *cdev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", x86_pmu_max_precise());
+}
+
+static DEVICE_ATTR_RO(max_precise);
+
+static struct attribute *x86_pmu_caps_attrs[] = {
+ &dev_attr_max_precise.attr,
+ NULL
+};
+
+static struct attribute_group x86_pmu_caps_group = {
+ .name = "caps",
+ .attrs = x86_pmu_caps_attrs,
+};
+
static const struct attribute_group *x86_pmu_attr_groups[] = {
&x86_pmu_attr_group,
&x86_pmu_format_group,
&x86_pmu_events_group,
+ &x86_pmu_caps_group,
NULL,
};
@@ -2224,7 +2266,6 @@ void perf_check_microcode(void)
if (x86_pmu.check_microcode)
x86_pmu.check_microcode();
}
-EXPORT_SYMBOL_GPL(perf_check_microcode);
static struct pmu pmu = {
.pmu_enable = x86_pmu_enable,
@@ -2255,7 +2296,7 @@ static struct pmu pmu = {
void arch_perf_update_userpage(struct perf_event *event,
struct perf_event_mmap_page *userpg, u64 now)
{
- struct cyc2ns_data *data;
+ struct cyc2ns_data data;
u64 offset;
userpg->cap_user_time = 0;
@@ -2267,17 +2308,17 @@ void arch_perf_update_userpage(struct perf_event *event,
if (!using_native_sched_clock() || !sched_clock_stable())
return;
- data = cyc2ns_read_begin();
+ cyc2ns_read_begin(&data);
- offset = data->cyc2ns_offset + __sched_clock_offset;
+ offset = data.cyc2ns_offset + __sched_clock_offset;
/*
* Internal timekeeping for enabled/running/stopped times
* is always in the local_clock domain.
*/
userpg->cap_user_time = 1;
- userpg->time_mult = data->cyc2ns_mul;
- userpg->time_shift = data->cyc2ns_shift;
+ userpg->time_mult = data.cyc2ns_mul;
+ userpg->time_shift = data.cyc2ns_shift;
userpg->time_offset = offset - now;
/*
@@ -2289,7 +2330,7 @@ void arch_perf_update_userpage(struct perf_event *event,
userpg->time_zero = offset;
}
- cyc2ns_read_end(data);
+ cyc2ns_read_end();
}
void
@@ -2329,12 +2370,9 @@ static unsigned long get_segment_base(unsigned int segment)
#ifdef CONFIG_MODIFY_LDT_SYSCALL
struct ldt_struct *ldt;
- if (idx > LDT_ENTRIES)
- return 0;
-
/* IRQs are off, so this synchronizes with smp_store_release */
ldt = lockless_dereference(current->active_mm->context.ldt);
- if (!ldt || idx > ldt->size)
+ if (!ldt || idx >= ldt->nr_entries)
return 0;
desc = &ldt->entries[idx];
@@ -2342,7 +2380,7 @@ static unsigned long get_segment_base(unsigned int segment)
return 0;
#endif
} else {
- if (idx > GDT_ENTRIES)
+ if (idx >= GDT_ENTRIES)
return 0;
desc = raw_cpu_ptr(gdt_page.gdt) + idx;
diff --git a/arch/x86/events/intel/Makefile b/arch/x86/events/intel/Makefile
index 06c2baa51814..e9d8520a801a 100644
--- a/arch/x86/events/intel/Makefile
+++ b/arch/x86/events/intel/Makefile
@@ -1,4 +1,4 @@
-obj-$(CONFIG_CPU_SUP_INTEL) += core.o bts.o cqm.o
+obj-$(CONFIG_CPU_SUP_INTEL) += core.o bts.o
obj-$(CONFIG_CPU_SUP_INTEL) += ds.o knc.o
obj-$(CONFIG_CPU_SUP_INTEL) += lbr.o p4.o p6.o pt.o
obj-$(CONFIG_PERF_EVENTS_INTEL_RAPL) += intel-rapl-perf.o
diff --git a/arch/x86/events/intel/bts.c b/arch/x86/events/intel/bts.c
index 8ae8c5ce3a1f..16076eb34699 100644
--- a/arch/x86/events/intel/bts.c
+++ b/arch/x86/events/intel/bts.c
@@ -69,7 +69,7 @@ struct bts_buffer {
struct bts_phys buf[0];
};
-struct pmu bts_pmu;
+static struct pmu bts_pmu;
static size_t buf_size(struct page *page)
{
@@ -268,7 +268,7 @@ static void bts_event_start(struct perf_event *event, int flags)
bts->ds_back.bts_absolute_maximum = cpuc->ds->bts_absolute_maximum;
bts->ds_back.bts_interrupt_threshold = cpuc->ds->bts_interrupt_threshold;
- event->hw.itrace_started = 1;
+ perf_event_itrace_started(event);
event->hw.state = 0;
__bts_event_start(event);
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 110ce8238466..9fb9a1f1e47b 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -1708,6 +1708,120 @@ static __initconst const u64 glm_hw_cache_extra_regs
},
};
+static __initconst const u64 glp_hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
+ [C(L1D)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x81d0, /* MEM_UOPS_RETIRED.ALL_LOADS */
+ [C(RESULT_MISS)] = 0x0,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = 0x82d0, /* MEM_UOPS_RETIRED.ALL_STORES */
+ [C(RESULT_MISS)] = 0x0,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x0,
+ [C(RESULT_MISS)] = 0x0,
+ },
+ },
+ [C(L1I)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x0380, /* ICACHE.ACCESSES */
+ [C(RESULT_MISS)] = 0x0280, /* ICACHE.MISSES */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x0,
+ [C(RESULT_MISS)] = 0x0,
+ },
+ },
+ [C(LL)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x1b7, /* OFFCORE_RESPONSE */
+ [C(RESULT_MISS)] = 0x1b7, /* OFFCORE_RESPONSE */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = 0x1b7, /* OFFCORE_RESPONSE */
+ [C(RESULT_MISS)] = 0x1b7, /* OFFCORE_RESPONSE */
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x0,
+ [C(RESULT_MISS)] = 0x0,
+ },
+ },
+ [C(DTLB)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x81d0, /* MEM_UOPS_RETIRED.ALL_LOADS */
+ [C(RESULT_MISS)] = 0xe08, /* DTLB_LOAD_MISSES.WALK_COMPLETED */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = 0x82d0, /* MEM_UOPS_RETIRED.ALL_STORES */
+ [C(RESULT_MISS)] = 0xe49, /* DTLB_STORE_MISSES.WALK_COMPLETED */
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x0,
+ [C(RESULT_MISS)] = 0x0,
+ },
+ },
+ [C(ITLB)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x00c0, /* INST_RETIRED.ANY_P */
+ [C(RESULT_MISS)] = 0x0481, /* ITLB.MISS */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ },
+ [C(BPU)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x00c4, /* BR_INST_RETIRED.ALL_BRANCHES */
+ [C(RESULT_MISS)] = 0x00c5, /* BR_MISP_RETIRED.ALL_BRANCHES */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ },
+};
+
+static __initconst const u64 glp_hw_cache_extra_regs
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
+ [C(LL)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = GLM_DEMAND_READ|
+ GLM_LLC_ACCESS,
+ [C(RESULT_MISS)] = GLM_DEMAND_READ|
+ GLM_LLC_MISS,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = GLM_DEMAND_WRITE|
+ GLM_LLC_ACCESS,
+ [C(RESULT_MISS)] = GLM_DEMAND_WRITE|
+ GLM_LLC_MISS,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x0,
+ [C(RESULT_MISS)] = 0x0,
+ },
+ },
+};
+
#define KNL_OT_L2_HITE BIT_ULL(19) /* Other Tile L2 Hit */
#define KNL_OT_L2_HITF BIT_ULL(20) /* Other Tile L2 Hit */
#define KNL_MCDRAM_LOCAL BIT_ULL(21)
@@ -3016,6 +3130,9 @@ static int hsw_hw_config(struct perf_event *event)
return 0;
}
+static struct event_constraint counter0_constraint =
+ INTEL_ALL_EVENT_CONSTRAINT(0, 0x1);
+
static struct event_constraint counter2_constraint =
EVENT_CONSTRAINT(0, 0x4, 0);
@@ -3037,6 +3154,21 @@ hsw_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
return c;
}
+static struct event_constraint *
+glp_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct event_constraint *c;
+
+ /* :ppp means to do reduced skid PEBS which is PMC0 only. */
+ if (event->attr.precise_ip == 3)
+ return &counter0_constraint;
+
+ c = intel_get_event_constraints(cpuc, idx, event);
+
+ return c;
+}
+
/*
* Broadwell:
*
@@ -3160,6 +3292,19 @@ err:
return -ENOMEM;
}
+static void flip_smm_bit(void *data)
+{
+ unsigned long set = *(unsigned long *)data;
+
+ if (set > 0) {
+ msr_set_bit(MSR_IA32_DEBUGCTLMSR,
+ DEBUGCTLMSR_FREEZE_IN_SMM_BIT);
+ } else {
+ msr_clear_bit(MSR_IA32_DEBUGCTLMSR,
+ DEBUGCTLMSR_FREEZE_IN_SMM_BIT);
+ }
+}
+
static void intel_pmu_cpu_starting(int cpu)
{
struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
@@ -3174,6 +3319,8 @@ static void intel_pmu_cpu_starting(int cpu)
cpuc->lbr_sel = NULL;
+ flip_smm_bit(&x86_pmu.attr_freeze_on_smi);
+
if (!cpuc->shared_regs)
return;
@@ -3250,10 +3397,8 @@ static void intel_pmu_cpu_dying(int cpu)
static void intel_pmu_sched_task(struct perf_event_context *ctx,
bool sched_in)
{
- if (x86_pmu.pebs_active)
- intel_pmu_pebs_sched_task(ctx, sched_in);
- if (x86_pmu.lbr_nr)
- intel_pmu_lbr_sched_task(ctx, sched_in);
+ intel_pmu_pebs_sched_task(ctx, sched_in);
+ intel_pmu_lbr_sched_task(ctx, sched_in);
}
PMU_FORMAT_ATTR(offcore_rsp, "config1:0-63");
@@ -3270,12 +3415,26 @@ static struct attribute *intel_arch3_formats_attr[] = {
&format_attr_any.attr,
&format_attr_inv.attr,
&format_attr_cmask.attr,
+ NULL,
+};
+
+static struct attribute *hsw_format_attr[] = {
&format_attr_in_tx.attr,
&format_attr_in_tx_cp.attr,
+ &format_attr_offcore_rsp.attr,
+ &format_attr_ldlat.attr,
+ NULL
+};
- &format_attr_offcore_rsp.attr, /* XXX do NHM/WSM + SNB breakout */
- &format_attr_ldlat.attr, /* PEBS load latency */
- NULL,
+static struct attribute *nhm_format_attr[] = {
+ &format_attr_offcore_rsp.attr,
+ &format_attr_ldlat.attr,
+ NULL
+};
+
+static struct attribute *slm_format_attr[] = {
+ &format_attr_offcore_rsp.attr,
+ NULL
};
static struct attribute *skl_format_attr[] = {
@@ -3410,12 +3569,10 @@ static void intel_snb_check_microcode(void)
int pebs_broken = 0;
int cpu;
- get_online_cpus();
for_each_online_cpu(cpu) {
if ((pebs_broken = intel_snb_pebs_broken(cpu)))
break;
}
- put_online_cpus();
if (pebs_broken == x86_pmu.pebs_broken)
return;
@@ -3488,7 +3645,9 @@ static bool check_msr(unsigned long msr, u64 mask)
static __init void intel_sandybridge_quirk(void)
{
x86_pmu.check_microcode = intel_snb_check_microcode;
+ cpus_read_lock();
intel_snb_check_microcode();
+ cpus_read_unlock();
}
static const struct { int id; char *name; } intel_arch_events_map[] __initconst = {
@@ -3595,6 +3754,82 @@ static struct attribute *hsw_events_attrs[] = {
NULL
};
+static ssize_t freeze_on_smi_show(struct device *cdev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%lu\n", x86_pmu.attr_freeze_on_smi);
+}
+
+static DEFINE_MUTEX(freeze_on_smi_mutex);
+
+static ssize_t freeze_on_smi_store(struct device *cdev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ unsigned long val;
+ ssize_t ret;
+
+ ret = kstrtoul(buf, 0, &val);
+ if (ret)
+ return ret;
+
+ if (val > 1)
+ return -EINVAL;
+
+ mutex_lock(&freeze_on_smi_mutex);
+
+ if (x86_pmu.attr_freeze_on_smi == val)
+ goto done;
+
+ x86_pmu.attr_freeze_on_smi = val;
+
+ get_online_cpus();
+ on_each_cpu(flip_smm_bit, &val, 1);
+ put_online_cpus();
+done:
+ mutex_unlock(&freeze_on_smi_mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR_RW(freeze_on_smi);
+
+static ssize_t branches_show(struct device *cdev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", x86_pmu.lbr_nr);
+}
+
+static DEVICE_ATTR_RO(branches);
+
+static struct attribute *lbr_attrs[] = {
+ &dev_attr_branches.attr,
+ NULL
+};
+
+static char pmu_name_str[30];
+
+static ssize_t pmu_name_show(struct device *cdev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%s\n", pmu_name_str);
+}
+
+static DEVICE_ATTR_RO(pmu_name);
+
+static struct attribute *intel_pmu_caps_attrs[] = {
+ &dev_attr_pmu_name.attr,
+ NULL
+};
+
+static struct attribute *intel_pmu_attrs[] = {
+ &dev_attr_freeze_on_smi.attr,
+ NULL,
+};
+
__init int intel_pmu_init(void)
{
union cpuid10_edx edx;
@@ -3604,6 +3839,8 @@ __init int intel_pmu_init(void)
unsigned int unused;
struct extra_reg *er;
int version, i;
+ struct attribute **extra_attr = NULL;
+ char *name;
if (!cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) {
switch (boot_cpu_data.x86) {
@@ -3641,6 +3878,8 @@ __init int intel_pmu_init(void)
x86_pmu.max_pebs_events = min_t(unsigned, MAX_PEBS_EVENTS, x86_pmu.num_counters);
+
+ x86_pmu.attrs = intel_pmu_attrs;
/*
* Quirk: v2 perfmon does not report fixed-purpose events, so
* assume at least 3 events, when not running in a hypervisor:
@@ -3669,6 +3908,7 @@ __init int intel_pmu_init(void)
switch (boot_cpu_data.x86_model) {
case INTEL_FAM6_CORE_YONAH:
pr_cont("Core events, ");
+ name = "core";
break;
case INTEL_FAM6_CORE2_MEROM:
@@ -3684,6 +3924,7 @@ __init int intel_pmu_init(void)
x86_pmu.event_constraints = intel_core2_event_constraints;
x86_pmu.pebs_constraints = intel_core2_pebs_event_constraints;
pr_cont("Core2 events, ");
+ name = "core2";
break;
case INTEL_FAM6_NEHALEM:
@@ -3712,8 +3953,11 @@ __init int intel_pmu_init(void)
intel_pmu_pebs_data_source_nhm();
x86_add_quirk(intel_nehalem_quirk);
+ x86_pmu.pebs_no_tlb = 1;
+ extra_attr = nhm_format_attr;
pr_cont("Nehalem events, ");
+ name = "nehalem";
break;
case INTEL_FAM6_ATOM_PINEVIEW:
@@ -3730,6 +3974,7 @@ __init int intel_pmu_init(void)
x86_pmu.pebs_constraints = intel_atom_pebs_event_constraints;
x86_pmu.pebs_aliases = intel_pebs_aliases_core2;
pr_cont("Atom events, ");
+ name = "bonnell";
break;
case INTEL_FAM6_ATOM_SILVERMONT1:
@@ -3747,7 +3992,9 @@ __init int intel_pmu_init(void)
x86_pmu.extra_regs = intel_slm_extra_regs;
x86_pmu.flags |= PMU_FL_HAS_RSP_1;
x86_pmu.cpu_events = slm_events_attrs;
+ extra_attr = slm_format_attr;
pr_cont("Silvermont events, ");
+ name = "silvermont";
break;
case INTEL_FAM6_ATOM_GOLDMONT:
@@ -3772,7 +4019,37 @@ __init int intel_pmu_init(void)
x86_pmu.lbr_pt_coexist = true;
x86_pmu.flags |= PMU_FL_HAS_RSP_1;
x86_pmu.cpu_events = glm_events_attrs;
+ extra_attr = slm_format_attr;
pr_cont("Goldmont events, ");
+ name = "goldmont";
+ break;
+
+ case INTEL_FAM6_ATOM_GEMINI_LAKE:
+ memcpy(hw_cache_event_ids, glp_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+ memcpy(hw_cache_extra_regs, glp_hw_cache_extra_regs,
+ sizeof(hw_cache_extra_regs));
+
+ intel_pmu_lbr_init_skl();
+
+ x86_pmu.event_constraints = intel_slm_event_constraints;
+ x86_pmu.pebs_constraints = intel_glp_pebs_event_constraints;
+ x86_pmu.extra_regs = intel_glm_extra_regs;
+ /*
+ * It's recommended to use CPU_CLK_UNHALTED.CORE_P + NPEBS
+ * for precise cycles.
+ */
+ x86_pmu.pebs_aliases = NULL;
+ x86_pmu.pebs_prec_dist = true;
+ x86_pmu.lbr_pt_coexist = true;
+ x86_pmu.flags |= PMU_FL_HAS_RSP_1;
+ x86_pmu.get_event_constraints = glp_get_event_constraints;
+ x86_pmu.cpu_events = glm_events_attrs;
+ /* Goldmont Plus has 4-wide pipeline */
+ event_attr_td_total_slots_scale_glm.event_str = "4";
+ extra_attr = slm_format_attr;
+ pr_cont("Goldmont plus events, ");
+ name = "goldmont_plus";
break;
case INTEL_FAM6_WESTMERE:
@@ -3801,7 +4078,9 @@ __init int intel_pmu_init(void)
X86_CONFIG(.event=0xb1, .umask=0x3f, .inv=1, .cmask=1);
intel_pmu_pebs_data_source_nhm();
+ extra_attr = nhm_format_attr;
pr_cont("Westmere events, ");
+ name = "westmere";
break;
case INTEL_FAM6_SANDYBRIDGE:
@@ -3837,7 +4116,10 @@ __init int intel_pmu_init(void)
intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] =
X86_CONFIG(.event=0xb1, .umask=0x01, .inv=1, .cmask=1);
+ extra_attr = nhm_format_attr;
+
pr_cont("SandyBridge events, ");
+ name = "sandybridge";
break;
case INTEL_FAM6_IVYBRIDGE:
@@ -3871,7 +4153,10 @@ __init int intel_pmu_init(void)
intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] =
X86_CONFIG(.event=0x0e, .umask=0x01, .inv=1, .cmask=1);
+ extra_attr = nhm_format_attr;
+
pr_cont("IvyBridge events, ");
+ name = "ivybridge";
break;
@@ -3899,7 +4184,10 @@ __init int intel_pmu_init(void)
x86_pmu.get_event_constraints = hsw_get_event_constraints;
x86_pmu.cpu_events = hsw_events_attrs;
x86_pmu.lbr_double_abort = true;
+ extra_attr = boot_cpu_has(X86_FEATURE_RTM) ?
+ hsw_format_attr : nhm_format_attr;
pr_cont("Haswell events, ");
+ name = "haswell";
break;
case INTEL_FAM6_BROADWELL_CORE:
@@ -3935,7 +4223,10 @@ __init int intel_pmu_init(void)
x86_pmu.get_event_constraints = hsw_get_event_constraints;
x86_pmu.cpu_events = hsw_events_attrs;
x86_pmu.limit_period = bdw_limit_period;
+ extra_attr = boot_cpu_has(X86_FEATURE_RTM) ?
+ hsw_format_attr : nhm_format_attr;
pr_cont("Broadwell events, ");
+ name = "broadwell";
break;
case INTEL_FAM6_XEON_PHI_KNL:
@@ -3953,8 +4244,9 @@ __init int intel_pmu_init(void)
/* all extra regs are per-cpu when HT is on */
x86_pmu.flags |= PMU_FL_HAS_RSP_1;
x86_pmu.flags |= PMU_FL_NO_HT_SHARING;
-
+ extra_attr = slm_format_attr;
pr_cont("Knights Landing/Mill events, ");
+ name = "knights-landing";
break;
case INTEL_FAM6_SKYLAKE_MOBILE:
@@ -3984,11 +4276,14 @@ __init int intel_pmu_init(void)
x86_pmu.hw_config = hsw_hw_config;
x86_pmu.get_event_constraints = hsw_get_event_constraints;
- x86_pmu.format_attrs = merge_attr(intel_arch3_formats_attr,
- skl_format_attr);
- WARN_ON(!x86_pmu.format_attrs);
+ extra_attr = boot_cpu_has(X86_FEATURE_RTM) ?
+ hsw_format_attr : nhm_format_attr;
+ extra_attr = merge_attr(extra_attr, skl_format_attr);
x86_pmu.cpu_events = hsw_events_attrs;
+ intel_pmu_pebs_data_source_skl(
+ boot_cpu_data.x86_model == INTEL_FAM6_SKYLAKE_X);
pr_cont("Skylake events, ");
+ name = "skylake";
break;
default:
@@ -3996,6 +4291,7 @@ __init int intel_pmu_init(void)
case 1:
x86_pmu.event_constraints = intel_v1_event_constraints;
pr_cont("generic architected perfmon v1, ");
+ name = "generic_arch_v1";
break;
default:
/*
@@ -4003,10 +4299,19 @@ __init int intel_pmu_init(void)
*/
x86_pmu.event_constraints = intel_gen_event_constraints;
pr_cont("generic architected perfmon, ");
+ name = "generic_arch_v2+";
break;
}
}
+ snprintf(pmu_name_str, sizeof pmu_name_str, "%s", name);
+
+ if (version >= 2 && extra_attr) {
+ x86_pmu.format_attrs = merge_attr(intel_arch3_formats_attr,
+ extra_attr);
+ WARN_ON(!x86_pmu.format_attrs);
+ }
+
if (x86_pmu.num_counters > INTEL_PMC_MAX_GENERIC) {
WARN(1, KERN_ERR "hw perf events %d > max(%d), clipping!",
x86_pmu.num_counters, INTEL_PMC_MAX_GENERIC);
@@ -4053,8 +4358,13 @@ __init int intel_pmu_init(void)
x86_pmu.lbr_nr = 0;
}
- if (x86_pmu.lbr_nr)
+ x86_pmu.caps_attrs = intel_pmu_caps_attrs;
+
+ if (x86_pmu.lbr_nr) {
+ x86_pmu.caps_attrs = merge_attr(x86_pmu.caps_attrs, lbr_attrs);
pr_cont("%d-deep LBR, ", x86_pmu.lbr_nr);
+ }
+
/*
* Access extra MSR may cause #GP under certain circumstances.
* E.g. KVM doesn't support offcore event
@@ -4099,10 +4409,9 @@ static __init int fixup_ht_bug(void)
return 0;
}
- if (lockup_detector_suspend() != 0) {
- pr_debug("failed to disable PMU erratum BJ122, BV98, HSD29 workaround\n");
- return 0;
- }
+ cpus_read_lock();
+
+ hardlockup_detector_perf_stop();
x86_pmu.flags &= ~(PMU_FL_EXCL_CNTRS | PMU_FL_EXCL_ENABLED);
@@ -4110,15 +4419,12 @@ static __init int fixup_ht_bug(void)
x86_pmu.commit_scheduling = NULL;
x86_pmu.stop_scheduling = NULL;
- lockup_detector_resume();
-
- get_online_cpus();
+ hardlockup_detector_perf_restart();
- for_each_online_cpu(c) {
+ for_each_online_cpu(c)
free_excl_cntrs(c);
- }
- put_online_cpus();
+ cpus_read_unlock();
pr_info("PMU erratum BJ122, BV98, HSD29 workaround disabled, HT off\n");
return 0;
}
diff --git a/arch/x86/events/intel/cqm.c b/arch/x86/events/intel/cqm.c
deleted file mode 100644
index 8c00dc09a5d2..000000000000
--- a/arch/x86/events/intel/cqm.c
+++ /dev/null
@@ -1,1766 +0,0 @@
-/*
- * Intel Cache Quality-of-Service Monitoring (CQM) support.
- *
- * Based very, very heavily on work by Peter Zijlstra.
- */
-
-#include <linux/perf_event.h>
-#include <linux/slab.h>
-#include <asm/cpu_device_id.h>
-#include <asm/intel_rdt_common.h>
-#include "../perf_event.h"
-
-#define MSR_IA32_QM_CTR 0x0c8e
-#define MSR_IA32_QM_EVTSEL 0x0c8d
-
-#define MBM_CNTR_WIDTH 24
-/*
- * Guaranteed time in ms as per SDM where MBM counters will not overflow.
- */
-#define MBM_CTR_OVERFLOW_TIME 1000
-
-static u32 cqm_max_rmid = -1;
-static unsigned int cqm_l3_scale; /* supposedly cacheline size */
-static bool cqm_enabled, mbm_enabled;
-unsigned int mbm_socket_max;
-
-/*
- * The cached intel_pqr_state is strictly per CPU and can never be
- * updated from a remote CPU. Both functions which modify the state
- * (intel_cqm_event_start and intel_cqm_event_stop) are called with
- * interrupts disabled, which is sufficient for the protection.
- */
-DEFINE_PER_CPU(struct intel_pqr_state, pqr_state);
-static struct hrtimer *mbm_timers;
-/**
- * struct sample - mbm event's (local or total) data
- * @total_bytes #bytes since we began monitoring
- * @prev_msr previous value of MSR
- */
-struct sample {
- u64 total_bytes;
- u64 prev_msr;
-};
-
-/*
- * samples profiled for total memory bandwidth type events
- */
-static struct sample *mbm_total;
-/*
- * samples profiled for local memory bandwidth type events
- */
-static struct sample *mbm_local;
-
-#define pkg_id topology_physical_package_id(smp_processor_id())
-/*
- * rmid_2_index returns the index for the rmid in mbm_local/mbm_total array.
- * mbm_total[] and mbm_local[] are linearly indexed by socket# * max number of
- * rmids per socket, an example is given below
- * RMID1 of Socket0: vrmid = 1
- * RMID1 of Socket1: vrmid = 1 * (cqm_max_rmid + 1) + 1
- * RMID1 of Socket2: vrmid = 2 * (cqm_max_rmid + 1) + 1
- */
-#define rmid_2_index(rmid) ((pkg_id * (cqm_max_rmid + 1)) + rmid)
-/*
- * Protects cache_cgroups and cqm_rmid_free_lru and cqm_rmid_limbo_lru.
- * Also protects event->hw.cqm_rmid
- *
- * Hold either for stability, both for modification of ->hw.cqm_rmid.
- */
-static DEFINE_MUTEX(cache_mutex);
-static DEFINE_RAW_SPINLOCK(cache_lock);
-
-/*
- * Groups of events that have the same target(s), one RMID per group.
- */
-static LIST_HEAD(cache_groups);
-
-/*
- * Mask of CPUs for reading CQM values. We only need one per-socket.
- */
-static cpumask_t cqm_cpumask;
-
-#define RMID_VAL_ERROR (1ULL << 63)
-#define RMID_VAL_UNAVAIL (1ULL << 62)
-
-/*
- * Event IDs are used to program IA32_QM_EVTSEL before reading event
- * counter from IA32_QM_CTR
- */
-#define QOS_L3_OCCUP_EVENT_ID 0x01
-#define QOS_MBM_TOTAL_EVENT_ID 0x02
-#define QOS_MBM_LOCAL_EVENT_ID 0x03
-
-/*
- * This is central to the rotation algorithm in __intel_cqm_rmid_rotate().
- *
- * This rmid is always free and is guaranteed to have an associated
- * near-zero occupancy value, i.e. no cachelines are tagged with this
- * RMID, once __intel_cqm_rmid_rotate() returns.
- */
-static u32 intel_cqm_rotation_rmid;
-
-#define INVALID_RMID (-1)
-
-/*
- * Is @rmid valid for programming the hardware?
- *
- * rmid 0 is reserved by the hardware for all non-monitored tasks, which
- * means that we should never come across an rmid with that value.
- * Likewise, an rmid value of -1 is used to indicate "no rmid currently
- * assigned" and is used as part of the rotation code.
- */
-static inline bool __rmid_valid(u32 rmid)
-{
- if (!rmid || rmid == INVALID_RMID)
- return false;
-
- return true;
-}
-
-static u64 __rmid_read(u32 rmid)
-{
- u64 val;
-
- /*
- * Ignore the SDM, this thing is _NOTHING_ like a regular perfcnt,
- * it just says that to increase confusion.
- */
- wrmsr(MSR_IA32_QM_EVTSEL, QOS_L3_OCCUP_EVENT_ID, rmid);
- rdmsrl(MSR_IA32_QM_CTR, val);
-
- /*
- * Aside from the ERROR and UNAVAIL bits, assume this thing returns
- * the number of cachelines tagged with @rmid.
- */
- return val;
-}
-
-enum rmid_recycle_state {
- RMID_YOUNG = 0,
- RMID_AVAILABLE,
- RMID_DIRTY,
-};
-
-struct cqm_rmid_entry {
- u32 rmid;
- enum rmid_recycle_state state;
- struct list_head list;
- unsigned long queue_time;
-};
-
-/*
- * cqm_rmid_free_lru - A least recently used list of RMIDs.
- *
- * Oldest entry at the head, newest (most recently used) entry at the
- * tail. This list is never traversed, it's only used to keep track of
- * the lru order. That is, we only pick entries of the head or insert
- * them on the tail.
- *
- * All entries on the list are 'free', and their RMIDs are not currently
- * in use. To mark an RMID as in use, remove its entry from the lru
- * list.
- *
- *
- * cqm_rmid_limbo_lru - list of currently unused but (potentially) dirty RMIDs.
- *
- * This list is contains RMIDs that no one is currently using but that
- * may have a non-zero occupancy value associated with them. The
- * rotation worker moves RMIDs from the limbo list to the free list once
- * the occupancy value drops below __intel_cqm_threshold.
- *
- * Both lists are protected by cache_mutex.
- */
-static LIST_HEAD(cqm_rmid_free_lru);
-static LIST_HEAD(cqm_rmid_limbo_lru);
-
-/*
- * We use a simple array of pointers so that we can lookup a struct
- * cqm_rmid_entry in O(1). This alleviates the callers of __get_rmid()
- * and __put_rmid() from having to worry about dealing with struct
- * cqm_rmid_entry - they just deal with rmids, i.e. integers.
- *
- * Once this array is initialized it is read-only. No locks are required
- * to access it.
- *
- * All entries for all RMIDs can be looked up in the this array at all
- * times.
- */
-static struct cqm_rmid_entry **cqm_rmid_ptrs;
-
-static inline struct cqm_rmid_entry *__rmid_entry(u32 rmid)
-{
- struct cqm_rmid_entry *entry;
-
- entry = cqm_rmid_ptrs[rmid];
- WARN_ON(entry->rmid != rmid);
-
- return entry;
-}
-
-/*
- * Returns < 0 on fail.
- *
- * We expect to be called with cache_mutex held.
- */
-static u32 __get_rmid(void)
-{
- struct cqm_rmid_entry *entry;
-
- lockdep_assert_held(&cache_mutex);
-
- if (list_empty(&cqm_rmid_free_lru))
- return INVALID_RMID;
-
- entry = list_first_entry(&cqm_rmid_free_lru, struct cqm_rmid_entry, list);
- list_del(&entry->list);
-
- return entry->rmid;
-}
-
-static void __put_rmid(u32 rmid)
-{
- struct cqm_rmid_entry *entry;
-
- lockdep_assert_held(&cache_mutex);
-
- WARN_ON(!__rmid_valid(rmid));
- entry = __rmid_entry(rmid);
-
- entry->queue_time = jiffies;
- entry->state = RMID_YOUNG;
-
- list_add_tail(&entry->list, &cqm_rmid_limbo_lru);
-}
-
-static void cqm_cleanup(void)
-{
- int i;
-
- if (!cqm_rmid_ptrs)
- return;
-
- for (i = 0; i < cqm_max_rmid; i++)
- kfree(cqm_rmid_ptrs[i]);
-
- kfree(cqm_rmid_ptrs);
- cqm_rmid_ptrs = NULL;
- cqm_enabled = false;
-}
-
-static int intel_cqm_setup_rmid_cache(void)
-{
- struct cqm_rmid_entry *entry;
- unsigned int nr_rmids;
- int r = 0;
-
- nr_rmids = cqm_max_rmid + 1;
- cqm_rmid_ptrs = kzalloc(sizeof(struct cqm_rmid_entry *) *
- nr_rmids, GFP_KERNEL);
- if (!cqm_rmid_ptrs)
- return -ENOMEM;
-
- for (; r <= cqm_max_rmid; r++) {
- struct cqm_rmid_entry *entry;
-
- entry = kmalloc(sizeof(*entry), GFP_KERNEL);
- if (!entry)
- goto fail;
-
- INIT_LIST_HEAD(&entry->list);
- entry->rmid = r;
- cqm_rmid_ptrs[r] = entry;
-
- list_add_tail(&entry->list, &cqm_rmid_free_lru);
- }
-
- /*
- * RMID 0 is special and is always allocated. It's used for all
- * tasks that are not monitored.
- */
- entry = __rmid_entry(0);
- list_del(&entry->list);
-
- mutex_lock(&cache_mutex);
- intel_cqm_rotation_rmid = __get_rmid();
- mutex_unlock(&cache_mutex);
-
- return 0;
-
-fail:
- cqm_cleanup();
- return -ENOMEM;
-}
-
-/*
- * Determine if @a and @b measure the same set of tasks.
- *
- * If @a and @b measure the same set of tasks then we want to share a
- * single RMID.
- */
-static bool __match_event(struct perf_event *a, struct perf_event *b)
-{
- /* Per-cpu and task events don't mix */
- if ((a->attach_state & PERF_ATTACH_TASK) !=
- (b->attach_state & PERF_ATTACH_TASK))
- return false;
-
-#ifdef CONFIG_CGROUP_PERF
- if (a->cgrp != b->cgrp)
- return false;
-#endif
-
- /* If not task event, we're machine wide */
- if (!(b->attach_state & PERF_ATTACH_TASK))
- return true;
-
- /*
- * Events that target same task are placed into the same cache group.
- * Mark it as a multi event group, so that we update ->count
- * for every event rather than just the group leader later.
- */
- if (a->hw.target == b->hw.target) {
- b->hw.is_group_event = true;
- return true;
- }
-
- /*
- * Are we an inherited event?
- */
- if (b->parent == a)
- return true;
-
- return false;
-}
-
-#ifdef CONFIG_CGROUP_PERF
-static inline struct perf_cgroup *event_to_cgroup(struct perf_event *event)
-{
- if (event->attach_state & PERF_ATTACH_TASK)
- return perf_cgroup_from_task(event->hw.target, event->ctx);
-
- return event->cgrp;
-}
-#endif
-
-/*
- * Determine if @a's tasks intersect with @b's tasks
- *
- * There are combinations of events that we explicitly prohibit,
- *
- * PROHIBITS
- * system-wide -> cgroup and task
- * cgroup -> system-wide
- * -> task in cgroup
- * task -> system-wide
- * -> task in cgroup
- *
- * Call this function before allocating an RMID.
- */
-static bool __conflict_event(struct perf_event *a, struct perf_event *b)
-{
-#ifdef CONFIG_CGROUP_PERF
- /*
- * We can have any number of cgroups but only one system-wide
- * event at a time.
- */
- if (a->cgrp && b->cgrp) {
- struct perf_cgroup *ac = a->cgrp;
- struct perf_cgroup *bc = b->cgrp;
-
- /*
- * This condition should have been caught in
- * __match_event() and we should be sharing an RMID.
- */
- WARN_ON_ONCE(ac == bc);
-
- if (cgroup_is_descendant(ac->css.cgroup, bc->css.cgroup) ||
- cgroup_is_descendant(bc->css.cgroup, ac->css.cgroup))
- return true;
-
- return false;
- }
-
- if (a->cgrp || b->cgrp) {
- struct perf_cgroup *ac, *bc;
-
- /*
- * cgroup and system-wide events are mutually exclusive
- */
- if ((a->cgrp && !(b->attach_state & PERF_ATTACH_TASK)) ||
- (b->cgrp && !(a->attach_state & PERF_ATTACH_TASK)))
- return true;
-
- /*
- * Ensure neither event is part of the other's cgroup
- */
- ac = event_to_cgroup(a);
- bc = event_to_cgroup(b);
- if (ac == bc)
- return true;
-
- /*
- * Must have cgroup and non-intersecting task events.
- */
- if (!ac || !bc)
- return false;
-
- /*
- * We have cgroup and task events, and the task belongs
- * to a cgroup. Check for for overlap.
- */
- if (cgroup_is_descendant(ac->css.cgroup, bc->css.cgroup) ||
- cgroup_is_descendant(bc->css.cgroup, ac->css.cgroup))
- return true;
-
- return false;
- }
-#endif
- /*
- * If one of them is not a task, same story as above with cgroups.
- */
- if (!(a->attach_state & PERF_ATTACH_TASK) ||
- !(b->attach_state & PERF_ATTACH_TASK))
- return true;
-
- /*
- * Must be non-overlapping.
- */
- return false;
-}
-
-struct rmid_read {
- u32 rmid;
- u32 evt_type;
- atomic64_t value;
-};
-
-static void __intel_cqm_event_count(void *info);
-static void init_mbm_sample(u32 rmid, u32 evt_type);
-static void __intel_mbm_event_count(void *info);
-
-static bool is_cqm_event(int e)
-{
- return (e == QOS_L3_OCCUP_EVENT_ID);
-}
-
-static bool is_mbm_event(int e)
-{
- return (e >= QOS_MBM_TOTAL_EVENT_ID && e <= QOS_MBM_LOCAL_EVENT_ID);
-}
-
-static void cqm_mask_call(struct rmid_read *rr)
-{
- if (is_mbm_event(rr->evt_type))
- on_each_cpu_mask(&cqm_cpumask, __intel_mbm_event_count, rr, 1);
- else
- on_each_cpu_mask(&cqm_cpumask, __intel_cqm_event_count, rr, 1);
-}
-
-/*
- * Exchange the RMID of a group of events.
- */
-static u32 intel_cqm_xchg_rmid(struct perf_event *group, u32 rmid)
-{
- struct perf_event *event;
- struct list_head *head = &group->hw.cqm_group_entry;
- u32 old_rmid = group->hw.cqm_rmid;
-
- lockdep_assert_held(&cache_mutex);
-
- /*
- * If our RMID is being deallocated, perform a read now.
- */
- if (__rmid_valid(old_rmid) && !__rmid_valid(rmid)) {
- struct rmid_read rr = {
- .rmid = old_rmid,
- .evt_type = group->attr.config,
- .value = ATOMIC64_INIT(0),
- };
-
- cqm_mask_call(&rr);
- local64_set(&group->count, atomic64_read(&rr.value));
- }
-
- raw_spin_lock_irq(&cache_lock);
-
- group->hw.cqm_rmid = rmid;
- list_for_each_entry(event, head, hw.cqm_group_entry)
- event->hw.cqm_rmid = rmid;
-
- raw_spin_unlock_irq(&cache_lock);
-
- /*
- * If the allocation is for mbm, init the mbm stats.
- * Need to check if each event in the group is mbm event
- * because there could be multiple type of events in the same group.
- */
- if (__rmid_valid(rmid)) {
- event = group;
- if (is_mbm_event(event->attr.config))
- init_mbm_sample(rmid, event->attr.config);
-
- list_for_each_entry(event, head, hw.cqm_group_entry) {
- if (is_mbm_event(event->attr.config))
- init_mbm_sample(rmid, event->attr.config);
- }
- }
-
- return old_rmid;
-}
-
-/*
- * If we fail to assign a new RMID for intel_cqm_rotation_rmid because
- * cachelines are still tagged with RMIDs in limbo, we progressively
- * increment the threshold until we find an RMID in limbo with <=
- * __intel_cqm_threshold lines tagged. This is designed to mitigate the
- * problem where cachelines tagged with an RMID are not steadily being
- * evicted.
- *
- * On successful rotations we decrease the threshold back towards zero.
- *
- * __intel_cqm_max_threshold provides an upper bound on the threshold,
- * and is measured in bytes because it's exposed to userland.
- */
-static unsigned int __intel_cqm_threshold;
-static unsigned int __intel_cqm_max_threshold;
-
-/*
- * Test whether an RMID has a zero occupancy value on this cpu.
- */
-static void intel_cqm_stable(void *arg)
-{
- struct cqm_rmid_entry *entry;
-
- list_for_each_entry(entry, &cqm_rmid_limbo_lru, list) {
- if (entry->state != RMID_AVAILABLE)
- break;
-
- if (__rmid_read(entry->rmid) > __intel_cqm_threshold)
- entry->state = RMID_DIRTY;
- }
-}
-
-/*
- * If we have group events waiting for an RMID that don't conflict with
- * events already running, assign @rmid.
- */
-static bool intel_cqm_sched_in_event(u32 rmid)
-{
- struct perf_event *leader, *event;
-
- lockdep_assert_held(&cache_mutex);
-
- leader = list_first_entry(&cache_groups, struct perf_event,
- hw.cqm_groups_entry);
- event = leader;
-
- list_for_each_entry_continue(event, &cache_groups,
- hw.cqm_groups_entry) {
- if (__rmid_valid(event->hw.cqm_rmid))
- continue;
-
- if (__conflict_event(event, leader))
- continue;
-
- intel_cqm_xchg_rmid(event, rmid);
- return true;
- }
-
- return false;
-}
-
-/*
- * Initially use this constant for both the limbo queue time and the
- * rotation timer interval, pmu::hrtimer_interval_ms.
- *
- * They don't need to be the same, but the two are related since if you
- * rotate faster than you recycle RMIDs, you may run out of available
- * RMIDs.
- */
-#define RMID_DEFAULT_QUEUE_TIME 250 /* ms */
-
-static unsigned int __rmid_queue_time_ms = RMID_DEFAULT_QUEUE_TIME;
-
-/*
- * intel_cqm_rmid_stabilize - move RMIDs from limbo to free list
- * @nr_available: number of freeable RMIDs on the limbo list
- *
- * Quiescent state; wait for all 'freed' RMIDs to become unused, i.e. no
- * cachelines are tagged with those RMIDs. After this we can reuse them
- * and know that the current set of active RMIDs is stable.
- *
- * Return %true or %false depending on whether stabilization needs to be
- * reattempted.
- *
- * If we return %true then @nr_available is updated to indicate the
- * number of RMIDs on the limbo list that have been queued for the
- * minimum queue time (RMID_AVAILABLE), but whose data occupancy values
- * are above __intel_cqm_threshold.
- */
-static bool intel_cqm_rmid_stabilize(unsigned int *available)
-{
- struct cqm_rmid_entry *entry, *tmp;
-
- lockdep_assert_held(&cache_mutex);
-
- *available = 0;
- list_for_each_entry(entry, &cqm_rmid_limbo_lru, list) {
- unsigned long min_queue_time;
- unsigned long now = jiffies;
-
- /*
- * We hold RMIDs placed into limbo for a minimum queue
- * time. Before the minimum queue time has elapsed we do
- * not recycle RMIDs.
- *
- * The reasoning is that until a sufficient time has
- * passed since we stopped using an RMID, any RMID
- * placed onto the limbo list will likely still have
- * data tagged in the cache, which means we'll probably
- * fail to recycle it anyway.
- *
- * We can save ourselves an expensive IPI by skipping
- * any RMIDs that have not been queued for the minimum
- * time.
- */
- min_queue_time = entry->queue_time +
- msecs_to_jiffies(__rmid_queue_time_ms);
-
- if (time_after(min_queue_time, now))
- break;
-
- entry->state = RMID_AVAILABLE;
- (*available)++;
- }
-
- /*
- * Fast return if none of the RMIDs on the limbo list have been
- * sitting on the queue for the minimum queue time.
- */
- if (!*available)
- return false;
-
- /*
- * Test whether an RMID is free for each package.
- */
- on_each_cpu_mask(&cqm_cpumask, intel_cqm_stable, NULL, true);
-
- list_for_each_entry_safe(entry, tmp, &cqm_rmid_limbo_lru, list) {
- /*
- * Exhausted all RMIDs that have waited min queue time.
- */
- if (entry->state == RMID_YOUNG)
- break;
-
- if (entry->state == RMID_DIRTY)
- continue;
-
- list_del(&entry->list); /* remove from limbo */
-
- /*
- * The rotation RMID gets priority if it's
- * currently invalid. In which case, skip adding
- * the RMID to the the free lru.
- */
- if (!__rmid_valid(intel_cqm_rotation_rmid)) {
- intel_cqm_rotation_rmid = entry->rmid;
- continue;
- }
-
- /*
- * If we have groups waiting for RMIDs, hand
- * them one now provided they don't conflict.
- */
- if (intel_cqm_sched_in_event(entry->rmid))
- continue;
-
- /*
- * Otherwise place it onto the free list.
- */
- list_add_tail(&entry->list, &cqm_rmid_free_lru);
- }
-
-
- return __rmid_valid(intel_cqm_rotation_rmid);
-}
-
-/*
- * Pick a victim group and move it to the tail of the group list.
- * @next: The first group without an RMID
- */
-static void __intel_cqm_pick_and_rotate(struct perf_event *next)
-{
- struct perf_event *rotor;
- u32 rmid;
-
- lockdep_assert_held(&cache_mutex);
-
- rotor = list_first_entry(&cache_groups, struct perf_event,
- hw.cqm_groups_entry);
-
- /*
- * The group at the front of the list should always have a valid
- * RMID. If it doesn't then no groups have RMIDs assigned and we
- * don't need to rotate the list.
- */
- if (next == rotor)
- return;
-
- rmid = intel_cqm_xchg_rmid(rotor, INVALID_RMID);
- __put_rmid(rmid);
-
- list_rotate_left(&cache_groups);
-}
-
-/*
- * Deallocate the RMIDs from any events that conflict with @event, and
- * place them on the back of the group list.
- */
-static void intel_cqm_sched_out_conflicting_events(struct perf_event *event)
-{
- struct perf_event *group, *g;
- u32 rmid;
-
- lockdep_assert_held(&cache_mutex);
-
- list_for_each_entry_safe(group, g, &cache_groups, hw.cqm_groups_entry) {
- if (group == event)
- continue;
-
- rmid = group->hw.cqm_rmid;
-
- /*
- * Skip events that don't have a valid RMID.
- */
- if (!__rmid_valid(rmid))
- continue;
-
- /*
- * No conflict? No problem! Leave the event alone.
- */
- if (!__conflict_event(group, event))
- continue;
-
- intel_cqm_xchg_rmid(group, INVALID_RMID);
- __put_rmid(rmid);
- }
-}
-
-/*
- * Attempt to rotate the groups and assign new RMIDs.
- *
- * We rotate for two reasons,
- * 1. To handle the scheduling of conflicting events
- * 2. To recycle RMIDs
- *
- * Rotating RMIDs is complicated because the hardware doesn't give us
- * any clues.
- *
- * There's problems with the hardware interface; when you change the
- * task:RMID map cachelines retain their 'old' tags, giving a skewed
- * picture. In order to work around this, we must always keep one free
- * RMID - intel_cqm_rotation_rmid.
- *
- * Rotation works by taking away an RMID from a group (the old RMID),
- * and assigning the free RMID to another group (the new RMID). We must
- * then wait for the old RMID to not be used (no cachelines tagged).
- * This ensure that all cachelines are tagged with 'active' RMIDs. At
- * this point we can start reading values for the new RMID and treat the
- * old RMID as the free RMID for the next rotation.
- *
- * Return %true or %false depending on whether we did any rotating.
- */
-static bool __intel_cqm_rmid_rotate(void)
-{
- struct perf_event *group, *start = NULL;
- unsigned int threshold_limit;
- unsigned int nr_needed = 0;
- unsigned int nr_available;
- bool rotated = false;
-
- mutex_lock(&cache_mutex);
-
-again:
- /*
- * Fast path through this function if there are no groups and no
- * RMIDs that need cleaning.
- */
- if (list_empty(&cache_groups) && list_empty(&cqm_rmid_limbo_lru))
- goto out;
-
- list_for_each_entry(group, &cache_groups, hw.cqm_groups_entry) {
- if (!__rmid_valid(group->hw.cqm_rmid)) {
- if (!start)
- start = group;
- nr_needed++;
- }
- }
-
- /*
- * We have some event groups, but they all have RMIDs assigned
- * and no RMIDs need cleaning.
- */
- if (!nr_needed && list_empty(&cqm_rmid_limbo_lru))
- goto out;
-
- if (!nr_needed)
- goto stabilize;
-
- /*
- * We have more event groups without RMIDs than available RMIDs,
- * or we have event groups that conflict with the ones currently
- * scheduled.
- *
- * We force deallocate the rmid of the group at the head of
- * cache_groups. The first event group without an RMID then gets
- * assigned intel_cqm_rotation_rmid. This ensures we always make
- * forward progress.
- *
- * Rotate the cache_groups list so the previous head is now the
- * tail.
- */
- __intel_cqm_pick_and_rotate(start);
-
- /*
- * If the rotation is going to succeed, reduce the threshold so
- * that we don't needlessly reuse dirty RMIDs.
- */
- if (__rmid_valid(intel_cqm_rotation_rmid)) {
- intel_cqm_xchg_rmid(start, intel_cqm_rotation_rmid);
- intel_cqm_rotation_rmid = __get_rmid();
-
- intel_cqm_sched_out_conflicting_events(start);
-
- if (__intel_cqm_threshold)
- __intel_cqm_threshold--;
- }
-
- rotated = true;
-
-stabilize:
- /*
- * We now need to stablize the RMID we freed above (if any) to
- * ensure that the next time we rotate we have an RMID with zero
- * occupancy value.
- *
- * Alternatively, if we didn't need to perform any rotation,
- * we'll have a bunch of RMIDs in limbo that need stabilizing.
- */
- threshold_limit = __intel_cqm_max_threshold / cqm_l3_scale;
-
- while (intel_cqm_rmid_stabilize(&nr_available) &&
- __intel_cqm_threshold < threshold_limit) {
- unsigned int steal_limit;
-
- /*
- * Don't spin if nobody is actively waiting for an RMID,
- * the rotation worker will be kicked as soon as an
- * event needs an RMID anyway.
- */
- if (!nr_needed)
- break;
-
- /* Allow max 25% of RMIDs to be in limbo. */
- steal_limit = (cqm_max_rmid + 1) / 4;
-
- /*
- * We failed to stabilize any RMIDs so our rotation
- * logic is now stuck. In order to make forward progress
- * we have a few options:
- *
- * 1. rotate ("steal") another RMID
- * 2. increase the threshold
- * 3. do nothing
- *
- * We do both of 1. and 2. until we hit the steal limit.
- *
- * The steal limit prevents all RMIDs ending up on the
- * limbo list. This can happen if every RMID has a
- * non-zero occupancy above threshold_limit, and the
- * occupancy values aren't dropping fast enough.
- *
- * Note that there is prioritisation at work here - we'd
- * rather increase the number of RMIDs on the limbo list
- * than increase the threshold, because increasing the
- * threshold skews the event data (because we reuse
- * dirty RMIDs) - threshold bumps are a last resort.
- */
- if (nr_available < steal_limit)
- goto again;
-
- __intel_cqm_threshold++;
- }
-
-out:
- mutex_unlock(&cache_mutex);
- return rotated;
-}
-
-static void intel_cqm_rmid_rotate(struct work_struct *work);
-
-static DECLARE_DELAYED_WORK(intel_cqm_rmid_work, intel_cqm_rmid_rotate);
-
-static struct pmu intel_cqm_pmu;
-
-static void intel_cqm_rmid_rotate(struct work_struct *work)
-{
- unsigned long delay;
-
- __intel_cqm_rmid_rotate();
-
- delay = msecs_to_jiffies(intel_cqm_pmu.hrtimer_interval_ms);
- schedule_delayed_work(&intel_cqm_rmid_work, delay);
-}
-
-static u64 update_sample(unsigned int rmid, u32 evt_type, int first)
-{
- struct sample *mbm_current;
- u32 vrmid = rmid_2_index(rmid);
- u64 val, bytes, shift;
- u32 eventid;
-
- if (evt_type == QOS_MBM_LOCAL_EVENT_ID) {
- mbm_current = &mbm_local[vrmid];
- eventid = QOS_MBM_LOCAL_EVENT_ID;
- } else {
- mbm_current = &mbm_total[vrmid];
- eventid = QOS_MBM_TOTAL_EVENT_ID;
- }
-
- wrmsr(MSR_IA32_QM_EVTSEL, eventid, rmid);
- rdmsrl(MSR_IA32_QM_CTR, val);
- if (val & (RMID_VAL_ERROR | RMID_VAL_UNAVAIL))
- return mbm_current->total_bytes;
-
- if (first) {
- mbm_current->prev_msr = val;
- mbm_current->total_bytes = 0;
- return mbm_current->total_bytes;
- }
-
- /*
- * The h/w guarantees that counters will not overflow
- * so long as we poll them at least once per second.
- */
- shift = 64 - MBM_CNTR_WIDTH;
- bytes = (val << shift) - (mbm_current->prev_msr << shift);
- bytes >>= shift;
-
- bytes *= cqm_l3_scale;
-
- mbm_current->total_bytes += bytes;
- mbm_current->prev_msr = val;
-
- return mbm_current->total_bytes;
-}
-
-static u64 rmid_read_mbm(unsigned int rmid, u32 evt_type)
-{
- return update_sample(rmid, evt_type, 0);
-}
-
-static void __intel_mbm_event_init(void *info)
-{
- struct rmid_read *rr = info;
-
- update_sample(rr->rmid, rr->evt_type, 1);
-}
-
-static void init_mbm_sample(u32 rmid, u32 evt_type)
-{
- struct rmid_read rr = {
- .rmid = rmid,
- .evt_type = evt_type,
- .value = ATOMIC64_INIT(0),
- };
-
- /* on each socket, init sample */
- on_each_cpu_mask(&cqm_cpumask, __intel_mbm_event_init, &rr, 1);
-}
-
-/*
- * Find a group and setup RMID.
- *
- * If we're part of a group, we use the group's RMID.
- */
-static void intel_cqm_setup_event(struct perf_event *event,
- struct perf_event **group)
-{
- struct perf_event *iter;
- bool conflict = false;
- u32 rmid;
-
- event->hw.is_group_event = false;
- list_for_each_entry(iter, &cache_groups, hw.cqm_groups_entry) {
- rmid = iter->hw.cqm_rmid;
-
- if (__match_event(iter, event)) {
- /* All tasks in a group share an RMID */
- event->hw.cqm_rmid = rmid;
- *group = iter;
- if (is_mbm_event(event->attr.config) && __rmid_valid(rmid))
- init_mbm_sample(rmid, event->attr.config);
- return;
- }
-
- /*
- * We only care about conflicts for events that are
- * actually scheduled in (and hence have a valid RMID).
- */
- if (__conflict_event(iter, event) && __rmid_valid(rmid))
- conflict = true;
- }
-
- if (conflict)
- rmid = INVALID_RMID;
- else
- rmid = __get_rmid();
-
- if (is_mbm_event(event->attr.config) && __rmid_valid(rmid))
- init_mbm_sample(rmid, event->attr.config);
-
- event->hw.cqm_rmid = rmid;
-}
-
-static void intel_cqm_event_read(struct perf_event *event)
-{
- unsigned long flags;
- u32 rmid;
- u64 val;
-
- /*
- * Task events are handled by intel_cqm_event_count().
- */
- if (event->cpu == -1)
- return;
-
- raw_spin_lock_irqsave(&cache_lock, flags);
- rmid = event->hw.cqm_rmid;
-
- if (!__rmid_valid(rmid))
- goto out;
-
- if (is_mbm_event(event->attr.config))
- val = rmid_read_mbm(rmid, event->attr.config);
- else
- val = __rmid_read(rmid);
-
- /*
- * Ignore this reading on error states and do not update the value.
- */
- if (val & (RMID_VAL_ERROR | RMID_VAL_UNAVAIL))
- goto out;
-
- local64_set(&event->count, val);
-out:
- raw_spin_unlock_irqrestore(&cache_lock, flags);
-}
-
-static void __intel_cqm_event_count(void *info)
-{
- struct rmid_read *rr = info;
- u64 val;
-
- val = __rmid_read(rr->rmid);
-
- if (val & (RMID_VAL_ERROR | RMID_VAL_UNAVAIL))
- return;
-
- atomic64_add(val, &rr->value);
-}
-
-static inline bool cqm_group_leader(struct perf_event *event)
-{
- return !list_empty(&event->hw.cqm_groups_entry);
-}
-
-static void __intel_mbm_event_count(void *info)
-{
- struct rmid_read *rr = info;
- u64 val;
-
- val = rmid_read_mbm(rr->rmid, rr->evt_type);
- if (val & (RMID_VAL_ERROR | RMID_VAL_UNAVAIL))
- return;
- atomic64_add(val, &rr->value);
-}
-
-static enum hrtimer_restart mbm_hrtimer_handle(struct hrtimer *hrtimer)
-{
- struct perf_event *iter, *iter1;
- int ret = HRTIMER_RESTART;
- struct list_head *head;
- unsigned long flags;
- u32 grp_rmid;
-
- /*
- * Need to cache_lock as the timer Event Select MSR reads
- * can race with the mbm/cqm count() and mbm_init() reads.
- */
- raw_spin_lock_irqsave(&cache_lock, flags);
-
- if (list_empty(&cache_groups)) {
- ret = HRTIMER_NORESTART;
- goto out;
- }
-
- list_for_each_entry(iter, &cache_groups, hw.cqm_groups_entry) {
- grp_rmid = iter->hw.cqm_rmid;
- if (!__rmid_valid(grp_rmid))
- continue;
- if (is_mbm_event(iter->attr.config))
- update_sample(grp_rmid, iter->attr.config, 0);
-
- head = &iter->hw.cqm_group_entry;
- if (list_empty(head))
- continue;
- list_for_each_entry(iter1, head, hw.cqm_group_entry) {
- if (!iter1->hw.is_group_event)
- break;
- if (is_mbm_event(iter1->attr.config))
- update_sample(iter1->hw.cqm_rmid,
- iter1->attr.config, 0);
- }
- }
-
- hrtimer_forward_now(hrtimer, ms_to_ktime(MBM_CTR_OVERFLOW_TIME));
-out:
- raw_spin_unlock_irqrestore(&cache_lock, flags);
-
- return ret;
-}
-
-static void __mbm_start_timer(void *info)
-{
- hrtimer_start(&mbm_timers[pkg_id], ms_to_ktime(MBM_CTR_OVERFLOW_TIME),
- HRTIMER_MODE_REL_PINNED);
-}
-
-static void __mbm_stop_timer(void *info)
-{
- hrtimer_cancel(&mbm_timers[pkg_id]);
-}
-
-static void mbm_start_timers(void)
-{
- on_each_cpu_mask(&cqm_cpumask, __mbm_start_timer, NULL, 1);
-}
-
-static void mbm_stop_timers(void)
-{
- on_each_cpu_mask(&cqm_cpumask, __mbm_stop_timer, NULL, 1);
-}
-
-static void mbm_hrtimer_init(void)
-{
- struct hrtimer *hr;
- int i;
-
- for (i = 0; i < mbm_socket_max; i++) {
- hr = &mbm_timers[i];
- hrtimer_init(hr, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
- hr->function = mbm_hrtimer_handle;
- }
-}
-
-static u64 intel_cqm_event_count(struct perf_event *event)
-{
- unsigned long flags;
- struct rmid_read rr = {
- .evt_type = event->attr.config,
- .value = ATOMIC64_INIT(0),
- };
-
- /*
- * We only need to worry about task events. System-wide events
- * are handled like usual, i.e. entirely with
- * intel_cqm_event_read().
- */
- if (event->cpu != -1)
- return __perf_event_count(event);
-
- /*
- * Only the group leader gets to report values except in case of
- * multiple events in the same group, we still need to read the
- * other events.This stops us
- * reporting duplicate values to userspace, and gives us a clear
- * rule for which task gets to report the values.
- *
- * Note that it is impossible to attribute these values to
- * specific packages - we forfeit that ability when we create
- * task events.
- */
- if (!cqm_group_leader(event) && !event->hw.is_group_event)
- return 0;
-
- /*
- * Getting up-to-date values requires an SMP IPI which is not
- * possible if we're being called in interrupt context. Return
- * the cached values instead.
- */
- if (unlikely(in_interrupt()))
- goto out;
-
- /*
- * Notice that we don't perform the reading of an RMID
- * atomically, because we can't hold a spin lock across the
- * IPIs.
- *
- * Speculatively perform the read, since @event might be
- * assigned a different (possibly invalid) RMID while we're
- * busying performing the IPI calls. It's therefore necessary to
- * check @event's RMID afterwards, and if it has changed,
- * discard the result of the read.
- */
- rr.rmid = ACCESS_ONCE(event->hw.cqm_rmid);
-
- if (!__rmid_valid(rr.rmid))
- goto out;
-
- cqm_mask_call(&rr);
-
- raw_spin_lock_irqsave(&cache_lock, flags);
- if (event->hw.cqm_rmid == rr.rmid)
- local64_set(&event->count, atomic64_read(&rr.value));
- raw_spin_unlock_irqrestore(&cache_lock, flags);
-out:
- return __perf_event_count(event);
-}
-
-static void intel_cqm_event_start(struct perf_event *event, int mode)
-{
- struct intel_pqr_state *state = this_cpu_ptr(&pqr_state);
- u32 rmid = event->hw.cqm_rmid;
-
- if (!(event->hw.cqm_state & PERF_HES_STOPPED))
- return;
-
- event->hw.cqm_state &= ~PERF_HES_STOPPED;
-
- if (state->rmid_usecnt++) {
- if (!WARN_ON_ONCE(state->rmid != rmid))
- return;
- } else {
- WARN_ON_ONCE(state->rmid);
- }
-
- state->rmid = rmid;
- wrmsr(MSR_IA32_PQR_ASSOC, rmid, state->closid);
-}
-
-static void intel_cqm_event_stop(struct perf_event *event, int mode)
-{
- struct intel_pqr_state *state = this_cpu_ptr(&pqr_state);
-
- if (event->hw.cqm_state & PERF_HES_STOPPED)
- return;
-
- event->hw.cqm_state |= PERF_HES_STOPPED;
-
- intel_cqm_event_read(event);
-
- if (!--state->rmid_usecnt) {
- state->rmid = 0;
- wrmsr(MSR_IA32_PQR_ASSOC, 0, state->closid);
- } else {
- WARN_ON_ONCE(!state->rmid);
- }
-}
-
-static int intel_cqm_event_add(struct perf_event *event, int mode)
-{
- unsigned long flags;
- u32 rmid;
-
- raw_spin_lock_irqsave(&cache_lock, flags);
-
- event->hw.cqm_state = PERF_HES_STOPPED;
- rmid = event->hw.cqm_rmid;
-
- if (__rmid_valid(rmid) && (mode & PERF_EF_START))
- intel_cqm_event_start(event, mode);
-
- raw_spin_unlock_irqrestore(&cache_lock, flags);
-
- return 0;
-}
-
-static void intel_cqm_event_destroy(struct perf_event *event)
-{
- struct perf_event *group_other = NULL;
- unsigned long flags;
-
- mutex_lock(&cache_mutex);
- /*
- * Hold the cache_lock as mbm timer handlers could be
- * scanning the list of events.
- */
- raw_spin_lock_irqsave(&cache_lock, flags);
-
- /*
- * If there's another event in this group...
- */
- if (!list_empty(&event->hw.cqm_group_entry)) {
- group_other = list_first_entry(&event->hw.cqm_group_entry,
- struct perf_event,
- hw.cqm_group_entry);
- list_del(&event->hw.cqm_group_entry);
- }
-
- /*
- * And we're the group leader..
- */
- if (cqm_group_leader(event)) {
- /*
- * If there was a group_other, make that leader, otherwise
- * destroy the group and return the RMID.
- */
- if (group_other) {
- list_replace(&event->hw.cqm_groups_entry,
- &group_other->hw.cqm_groups_entry);
- } else {
- u32 rmid = event->hw.cqm_rmid;
-
- if (__rmid_valid(rmid))
- __put_rmid(rmid);
- list_del(&event->hw.cqm_groups_entry);
- }
- }
-
- raw_spin_unlock_irqrestore(&cache_lock, flags);
-
- /*
- * Stop the mbm overflow timers when the last event is destroyed.
- */
- if (mbm_enabled && list_empty(&cache_groups))
- mbm_stop_timers();
-
- mutex_unlock(&cache_mutex);
-}
-
-static int intel_cqm_event_init(struct perf_event *event)
-{
- struct perf_event *group = NULL;
- bool rotate = false;
- unsigned long flags;
-
- if (event->attr.type != intel_cqm_pmu.type)
- return -ENOENT;
-
- if ((event->attr.config < QOS_L3_OCCUP_EVENT_ID) ||
- (event->attr.config > QOS_MBM_LOCAL_EVENT_ID))
- return -EINVAL;
-
- if ((is_cqm_event(event->attr.config) && !cqm_enabled) ||
- (is_mbm_event(event->attr.config) && !mbm_enabled))
- return -EINVAL;
-
- /* unsupported modes and filters */
- if (event->attr.exclude_user ||
- event->attr.exclude_kernel ||
- event->attr.exclude_hv ||
- event->attr.exclude_idle ||
- event->attr.exclude_host ||
- event->attr.exclude_guest ||
- event->attr.sample_period) /* no sampling */
- return -EINVAL;
-
- INIT_LIST_HEAD(&event->hw.cqm_group_entry);
- INIT_LIST_HEAD(&event->hw.cqm_groups_entry);
-
- event->destroy = intel_cqm_event_destroy;
-
- mutex_lock(&cache_mutex);
-
- /*
- * Start the mbm overflow timers when the first event is created.
- */
- if (mbm_enabled && list_empty(&cache_groups))
- mbm_start_timers();
-
- /* Will also set rmid */
- intel_cqm_setup_event(event, &group);
-
- /*
- * Hold the cache_lock as mbm timer handlers be
- * scanning the list of events.
- */
- raw_spin_lock_irqsave(&cache_lock, flags);
-
- if (group) {
- list_add_tail(&event->hw.cqm_group_entry,
- &group->hw.cqm_group_entry);
- } else {
- list_add_tail(&event->hw.cqm_groups_entry,
- &cache_groups);
-
- /*
- * All RMIDs are either in use or have recently been
- * used. Kick the rotation worker to clean/free some.
- *
- * We only do this for the group leader, rather than for
- * every event in a group to save on needless work.
- */
- if (!__rmid_valid(event->hw.cqm_rmid))
- rotate = true;
- }
-
- raw_spin_unlock_irqrestore(&cache_lock, flags);
- mutex_unlock(&cache_mutex);
-
- if (rotate)
- schedule_delayed_work(&intel_cqm_rmid_work, 0);
-
- return 0;
-}
-
-EVENT_ATTR_STR(llc_occupancy, intel_cqm_llc, "event=0x01");
-EVENT_ATTR_STR(llc_occupancy.per-pkg, intel_cqm_llc_pkg, "1");
-EVENT_ATTR_STR(llc_occupancy.unit, intel_cqm_llc_unit, "Bytes");
-EVENT_ATTR_STR(llc_occupancy.scale, intel_cqm_llc_scale, NULL);
-EVENT_ATTR_STR(llc_occupancy.snapshot, intel_cqm_llc_snapshot, "1");
-
-EVENT_ATTR_STR(total_bytes, intel_cqm_total_bytes, "event=0x02");
-EVENT_ATTR_STR(total_bytes.per-pkg, intel_cqm_total_bytes_pkg, "1");
-EVENT_ATTR_STR(total_bytes.unit, intel_cqm_total_bytes_unit, "MB");
-EVENT_ATTR_STR(total_bytes.scale, intel_cqm_total_bytes_scale, "1e-6");
-
-EVENT_ATTR_STR(local_bytes, intel_cqm_local_bytes, "event=0x03");
-EVENT_ATTR_STR(local_bytes.per-pkg, intel_cqm_local_bytes_pkg, "1");
-EVENT_ATTR_STR(local_bytes.unit, intel_cqm_local_bytes_unit, "MB");
-EVENT_ATTR_STR(local_bytes.scale, intel_cqm_local_bytes_scale, "1e-6");
-
-static struct attribute *intel_cqm_events_attr[] = {
- EVENT_PTR(intel_cqm_llc),
- EVENT_PTR(intel_cqm_llc_pkg),
- EVENT_PTR(intel_cqm_llc_unit),
- EVENT_PTR(intel_cqm_llc_scale),
- EVENT_PTR(intel_cqm_llc_snapshot),
- NULL,
-};
-
-static struct attribute *intel_mbm_events_attr[] = {
- EVENT_PTR(intel_cqm_total_bytes),
- EVENT_PTR(intel_cqm_local_bytes),
- EVENT_PTR(intel_cqm_total_bytes_pkg),
- EVENT_PTR(intel_cqm_local_bytes_pkg),
- EVENT_PTR(intel_cqm_total_bytes_unit),
- EVENT_PTR(intel_cqm_local_bytes_unit),
- EVENT_PTR(intel_cqm_total_bytes_scale),
- EVENT_PTR(intel_cqm_local_bytes_scale),
- NULL,
-};
-
-static struct attribute *intel_cmt_mbm_events_attr[] = {
- EVENT_PTR(intel_cqm_llc),
- EVENT_PTR(intel_cqm_total_bytes),
- EVENT_PTR(intel_cqm_local_bytes),
- EVENT_PTR(intel_cqm_llc_pkg),
- EVENT_PTR(intel_cqm_total_bytes_pkg),
- EVENT_PTR(intel_cqm_local_bytes_pkg),
- EVENT_PTR(intel_cqm_llc_unit),
- EVENT_PTR(intel_cqm_total_bytes_unit),
- EVENT_PTR(intel_cqm_local_bytes_unit),
- EVENT_PTR(intel_cqm_llc_scale),
- EVENT_PTR(intel_cqm_total_bytes_scale),
- EVENT_PTR(intel_cqm_local_bytes_scale),
- EVENT_PTR(intel_cqm_llc_snapshot),
- NULL,
-};
-
-static struct attribute_group intel_cqm_events_group = {
- .name = "events",
- .attrs = NULL,
-};
-
-PMU_FORMAT_ATTR(event, "config:0-7");
-static struct attribute *intel_cqm_formats_attr[] = {
- &format_attr_event.attr,
- NULL,
-};
-
-static struct attribute_group intel_cqm_format_group = {
- .name = "format",
- .attrs = intel_cqm_formats_attr,
-};
-
-static ssize_t
-max_recycle_threshold_show(struct device *dev, struct device_attribute *attr,
- char *page)
-{
- ssize_t rv;
-
- mutex_lock(&cache_mutex);
- rv = snprintf(page, PAGE_SIZE-1, "%u\n", __intel_cqm_max_threshold);
- mutex_unlock(&cache_mutex);
-
- return rv;
-}
-
-static ssize_t
-max_recycle_threshold_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- unsigned int bytes, cachelines;
- int ret;
-
- ret = kstrtouint(buf, 0, &bytes);
- if (ret)
- return ret;
-
- mutex_lock(&cache_mutex);
-
- __intel_cqm_max_threshold = bytes;
- cachelines = bytes / cqm_l3_scale;
-
- /*
- * The new maximum takes effect immediately.
- */
- if (__intel_cqm_threshold > cachelines)
- __intel_cqm_threshold = cachelines;
-
- mutex_unlock(&cache_mutex);
-
- return count;
-}
-
-static DEVICE_ATTR_RW(max_recycle_threshold);
-
-static struct attribute *intel_cqm_attrs[] = {
- &dev_attr_max_recycle_threshold.attr,
- NULL,
-};
-
-static const struct attribute_group intel_cqm_group = {
- .attrs = intel_cqm_attrs,
-};
-
-static const struct attribute_group *intel_cqm_attr_groups[] = {
- &intel_cqm_events_group,
- &intel_cqm_format_group,
- &intel_cqm_group,
- NULL,
-};
-
-static struct pmu intel_cqm_pmu = {
- .hrtimer_interval_ms = RMID_DEFAULT_QUEUE_TIME,
- .attr_groups = intel_cqm_attr_groups,
- .task_ctx_nr = perf_sw_context,
- .event_init = intel_cqm_event_init,
- .add = intel_cqm_event_add,
- .del = intel_cqm_event_stop,
- .start = intel_cqm_event_start,
- .stop = intel_cqm_event_stop,
- .read = intel_cqm_event_read,
- .count = intel_cqm_event_count,
-};
-
-static inline void cqm_pick_event_reader(int cpu)
-{
- int reader;
-
- /* First online cpu in package becomes the reader */
- reader = cpumask_any_and(&cqm_cpumask, topology_core_cpumask(cpu));
- if (reader >= nr_cpu_ids)
- cpumask_set_cpu(cpu, &cqm_cpumask);
-}
-
-static int intel_cqm_cpu_starting(unsigned int cpu)
-{
- struct intel_pqr_state *state = &per_cpu(pqr_state, cpu);
- struct cpuinfo_x86 *c = &cpu_data(cpu);
-
- state->rmid = 0;
- state->closid = 0;
- state->rmid_usecnt = 0;
-
- WARN_ON(c->x86_cache_max_rmid != cqm_max_rmid);
- WARN_ON(c->x86_cache_occ_scale != cqm_l3_scale);
-
- cqm_pick_event_reader(cpu);
- return 0;
-}
-
-static int intel_cqm_cpu_exit(unsigned int cpu)
-{
- int target;
-
- /* Is @cpu the current cqm reader for this package ? */
- if (!cpumask_test_and_clear_cpu(cpu, &cqm_cpumask))
- return 0;
-
- /* Find another online reader in this package */
- target = cpumask_any_but(topology_core_cpumask(cpu), cpu);
-
- if (target < nr_cpu_ids)
- cpumask_set_cpu(target, &cqm_cpumask);
-
- return 0;
-}
-
-static const struct x86_cpu_id intel_cqm_match[] = {
- { .vendor = X86_VENDOR_INTEL, .feature = X86_FEATURE_CQM_OCCUP_LLC },
- {}
-};
-
-static void mbm_cleanup(void)
-{
- if (!mbm_enabled)
- return;
-
- kfree(mbm_local);
- kfree(mbm_total);
- mbm_enabled = false;
-}
-
-static const struct x86_cpu_id intel_mbm_local_match[] = {
- { .vendor = X86_VENDOR_INTEL, .feature = X86_FEATURE_CQM_MBM_LOCAL },
- {}
-};
-
-static const struct x86_cpu_id intel_mbm_total_match[] = {
- { .vendor = X86_VENDOR_INTEL, .feature = X86_FEATURE_CQM_MBM_TOTAL },
- {}
-};
-
-static int intel_mbm_init(void)
-{
- int ret = 0, array_size, maxid = cqm_max_rmid + 1;
-
- mbm_socket_max = topology_max_packages();
- array_size = sizeof(struct sample) * maxid * mbm_socket_max;
- mbm_local = kmalloc(array_size, GFP_KERNEL);
- if (!mbm_local)
- return -ENOMEM;
-
- mbm_total = kmalloc(array_size, GFP_KERNEL);
- if (!mbm_total) {
- ret = -ENOMEM;
- goto out;
- }
-
- array_size = sizeof(struct hrtimer) * mbm_socket_max;
- mbm_timers = kmalloc(array_size, GFP_KERNEL);
- if (!mbm_timers) {
- ret = -ENOMEM;
- goto out;
- }
- mbm_hrtimer_init();
-
-out:
- if (ret)
- mbm_cleanup();
-
- return ret;
-}
-
-static int __init intel_cqm_init(void)
-{
- char *str = NULL, scale[20];
- int cpu, ret;
-
- if (x86_match_cpu(intel_cqm_match))
- cqm_enabled = true;
-
- if (x86_match_cpu(intel_mbm_local_match) &&
- x86_match_cpu(intel_mbm_total_match))
- mbm_enabled = true;
-
- if (!cqm_enabled && !mbm_enabled)
- return -ENODEV;
-
- cqm_l3_scale = boot_cpu_data.x86_cache_occ_scale;
-
- /*
- * It's possible that not all resources support the same number
- * of RMIDs. Instead of making scheduling much more complicated
- * (where we have to match a task's RMID to a cpu that supports
- * that many RMIDs) just find the minimum RMIDs supported across
- * all cpus.
- *
- * Also, check that the scales match on all cpus.
- */
- get_online_cpus();
- for_each_online_cpu(cpu) {
- struct cpuinfo_x86 *c = &cpu_data(cpu);
-
- if (c->x86_cache_max_rmid < cqm_max_rmid)
- cqm_max_rmid = c->x86_cache_max_rmid;
-
- if (c->x86_cache_occ_scale != cqm_l3_scale) {
- pr_err("Multiple LLC scale values, disabling\n");
- ret = -EINVAL;
- goto out;
- }
- }
-
- /*
- * A reasonable upper limit on the max threshold is the number
- * of lines tagged per RMID if all RMIDs have the same number of
- * lines tagged in the LLC.
- *
- * For a 35MB LLC and 56 RMIDs, this is ~1.8% of the LLC.
- */
- __intel_cqm_max_threshold =
- boot_cpu_data.x86_cache_size * 1024 / (cqm_max_rmid + 1);
-
- snprintf(scale, sizeof(scale), "%u", cqm_l3_scale);
- str = kstrdup(scale, GFP_KERNEL);
- if (!str) {
- ret = -ENOMEM;
- goto out;
- }
-
- event_attr_intel_cqm_llc_scale.event_str = str;
-
- ret = intel_cqm_setup_rmid_cache();
- if (ret)
- goto out;
-
- if (mbm_enabled)
- ret = intel_mbm_init();
- if (ret && !cqm_enabled)
- goto out;
-
- if (cqm_enabled && mbm_enabled)
- intel_cqm_events_group.attrs = intel_cmt_mbm_events_attr;
- else if (!cqm_enabled && mbm_enabled)
- intel_cqm_events_group.attrs = intel_mbm_events_attr;
- else if (cqm_enabled && !mbm_enabled)
- intel_cqm_events_group.attrs = intel_cqm_events_attr;
-
- ret = perf_pmu_register(&intel_cqm_pmu, "intel_cqm", -1);
- if (ret) {
- pr_err("Intel CQM perf registration failed: %d\n", ret);
- goto out;
- }
-
- if (cqm_enabled)
- pr_info("Intel CQM monitoring enabled\n");
- if (mbm_enabled)
- pr_info("Intel MBM enabled\n");
-
- /*
- * Setup the hot cpu notifier once we are sure cqm
- * is enabled to avoid notifier leak.
- */
- cpuhp_setup_state(CPUHP_AP_PERF_X86_CQM_STARTING,
- "perf/x86/cqm:starting",
- intel_cqm_cpu_starting, NULL);
- cpuhp_setup_state(CPUHP_AP_PERF_X86_CQM_ONLINE, "perf/x86/cqm:online",
- NULL, intel_cqm_cpu_exit);
-
-out:
- put_online_cpus();
-
- if (ret) {
- kfree(str);
- cqm_cleanup();
- mbm_cleanup();
- }
-
- return ret;
-}
-device_initcall(intel_cqm_init);
diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c
index 238ae3248ba5..72db0664a53d 100644
--- a/arch/x86/events/intel/cstate.c
+++ b/arch/x86/events/intel/cstate.c
@@ -40,16 +40,16 @@
* Model specific counters:
* MSR_CORE_C1_RES: CORE C1 Residency Counter
* perf code: 0x00
- * Available model: SLM,AMT
+ * Available model: SLM,AMT,GLM
* Scope: Core (each processor core has a MSR)
* MSR_CORE_C3_RESIDENCY: CORE C3 Residency Counter
* perf code: 0x01
- * Available model: NHM,WSM,SNB,IVB,HSW,BDW,SKL
+ * Available model: NHM,WSM,SNB,IVB,HSW,BDW,SKL,GLM
* Scope: Core
* MSR_CORE_C6_RESIDENCY: CORE C6 Residency Counter
* perf code: 0x02
* Available model: SLM,AMT,NHM,WSM,SNB,IVB,HSW,BDW
- * SKL,KNL
+ * SKL,KNL,GLM
* Scope: Core
* MSR_CORE_C7_RESIDENCY: CORE C7 Residency Counter
* perf code: 0x03
@@ -57,16 +57,17 @@
* Scope: Core
* MSR_PKG_C2_RESIDENCY: Package C2 Residency Counter.
* perf code: 0x00
- * Available model: SNB,IVB,HSW,BDW,SKL,KNL
+ * Available model: SNB,IVB,HSW,BDW,SKL,KNL,GLM
* Scope: Package (physical package)
* MSR_PKG_C3_RESIDENCY: Package C3 Residency Counter.
* perf code: 0x01
* Available model: NHM,WSM,SNB,IVB,HSW,BDW,SKL,KNL
+ * GLM
* Scope: Package (physical package)
* MSR_PKG_C6_RESIDENCY: Package C6 Residency Counter.
* perf code: 0x02
* Available model: SLM,AMT,NHM,WSM,SNB,IVB,HSW,BDW
- * SKL,KNL
+ * SKL,KNL,GLM
* Scope: Package (physical package)
* MSR_PKG_C7_RESIDENCY: Package C7 Residency Counter.
* perf code: 0x03
@@ -82,7 +83,7 @@
* Scope: Package (physical package)
* MSR_PKG_C10_RESIDENCY: Package C10 Residency Counter.
* perf code: 0x06
- * Available model: HSW ULT only
+ * Available model: HSW ULT, GLM
* Scope: Package (physical package)
*
*/
@@ -504,6 +505,17 @@ static const struct cstate_model knl_cstates __initconst = {
};
+static const struct cstate_model glm_cstates __initconst = {
+ .core_events = BIT(PERF_CSTATE_CORE_C1_RES) |
+ BIT(PERF_CSTATE_CORE_C3_RES) |
+ BIT(PERF_CSTATE_CORE_C6_RES),
+
+ .pkg_events = BIT(PERF_CSTATE_PKG_C2_RES) |
+ BIT(PERF_CSTATE_PKG_C3_RES) |
+ BIT(PERF_CSTATE_PKG_C6_RES) |
+ BIT(PERF_CSTATE_PKG_C10_RES),
+};
+
#define X86_CSTATES_MODEL(model, states) \
{ X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, (unsigned long) &(states) }
@@ -540,12 +552,18 @@ static const struct x86_cpu_id intel_cstates_match[] __initconst = {
X86_CSTATES_MODEL(INTEL_FAM6_SKYLAKE_MOBILE, snb_cstates),
X86_CSTATES_MODEL(INTEL_FAM6_SKYLAKE_DESKTOP, snb_cstates),
+ X86_CSTATES_MODEL(INTEL_FAM6_SKYLAKE_X, snb_cstates),
X86_CSTATES_MODEL(INTEL_FAM6_KABYLAKE_MOBILE, snb_cstates),
X86_CSTATES_MODEL(INTEL_FAM6_KABYLAKE_DESKTOP, snb_cstates),
X86_CSTATES_MODEL(INTEL_FAM6_XEON_PHI_KNL, knl_cstates),
X86_CSTATES_MODEL(INTEL_FAM6_XEON_PHI_KNM, knl_cstates),
+
+ X86_CSTATES_MODEL(INTEL_FAM6_ATOM_GOLDMONT, glm_cstates),
+ X86_CSTATES_MODEL(INTEL_FAM6_ATOM_DENVERTON, glm_cstates),
+
+ X86_CSTATES_MODEL(INTEL_FAM6_ATOM_GEMINI_LAKE, glm_cstates),
{ },
};
MODULE_DEVICE_TABLE(x86cpu, intel_cstates_match);
diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c
index c6d23ffe422d..e1965e5ff570 100644
--- a/arch/x86/events/intel/ds.c
+++ b/arch/x86/events/intel/ds.c
@@ -49,34 +49,47 @@ union intel_x86_pebs_dse {
*/
#define P(a, b) PERF_MEM_S(a, b)
#define OP_LH (P(OP, LOAD) | P(LVL, HIT))
+#define LEVEL(x) P(LVLNUM, x)
+#define REM P(REMOTE, REMOTE)
#define SNOOP_NONE_MISS (P(SNOOP, NONE) | P(SNOOP, MISS))
/* Version for Sandy Bridge and later */
static u64 pebs_data_source[] = {
- P(OP, LOAD) | P(LVL, MISS) | P(LVL, L3) | P(SNOOP, NA),/* 0x00:ukn L3 */
- OP_LH | P(LVL, L1) | P(SNOOP, NONE), /* 0x01: L1 local */
- OP_LH | P(LVL, LFB) | P(SNOOP, NONE), /* 0x02: LFB hit */
- OP_LH | P(LVL, L2) | P(SNOOP, NONE), /* 0x03: L2 hit */
- OP_LH | P(LVL, L3) | P(SNOOP, NONE), /* 0x04: L3 hit */
- OP_LH | P(LVL, L3) | P(SNOOP, MISS), /* 0x05: L3 hit, snoop miss */
- OP_LH | P(LVL, L3) | P(SNOOP, HIT), /* 0x06: L3 hit, snoop hit */
- OP_LH | P(LVL, L3) | P(SNOOP, HITM), /* 0x07: L3 hit, snoop hitm */
- OP_LH | P(LVL, REM_CCE1) | P(SNOOP, HIT), /* 0x08: L3 miss snoop hit */
- OP_LH | P(LVL, REM_CCE1) | P(SNOOP, HITM), /* 0x09: L3 miss snoop hitm*/
- OP_LH | P(LVL, LOC_RAM) | P(SNOOP, HIT), /* 0x0a: L3 miss, shared */
- OP_LH | P(LVL, REM_RAM1) | P(SNOOP, HIT), /* 0x0b: L3 miss, shared */
- OP_LH | P(LVL, LOC_RAM) | SNOOP_NONE_MISS,/* 0x0c: L3 miss, excl */
- OP_LH | P(LVL, REM_RAM1) | SNOOP_NONE_MISS,/* 0x0d: L3 miss, excl */
- OP_LH | P(LVL, IO) | P(SNOOP, NONE), /* 0x0e: I/O */
- OP_LH | P(LVL, UNC) | P(SNOOP, NONE), /* 0x0f: uncached */
+ P(OP, LOAD) | P(LVL, MISS) | LEVEL(L3) | P(SNOOP, NA),/* 0x00:ukn L3 */
+ OP_LH | P(LVL, L1) | LEVEL(L1) | P(SNOOP, NONE), /* 0x01: L1 local */
+ OP_LH | P(LVL, LFB) | LEVEL(LFB) | P(SNOOP, NONE), /* 0x02: LFB hit */
+ OP_LH | P(LVL, L2) | LEVEL(L2) | P(SNOOP, NONE), /* 0x03: L2 hit */
+ OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOP, NONE), /* 0x04: L3 hit */
+ OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOP, MISS), /* 0x05: L3 hit, snoop miss */
+ OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOP, HIT), /* 0x06: L3 hit, snoop hit */
+ OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOP, HITM), /* 0x07: L3 hit, snoop hitm */
+ OP_LH | P(LVL, REM_CCE1) | REM | LEVEL(L3) | P(SNOOP, HIT), /* 0x08: L3 miss snoop hit */
+ OP_LH | P(LVL, REM_CCE1) | REM | LEVEL(L3) | P(SNOOP, HITM), /* 0x09: L3 miss snoop hitm*/
+ OP_LH | P(LVL, LOC_RAM) | LEVEL(RAM) | P(SNOOP, HIT), /* 0x0a: L3 miss, shared */
+ OP_LH | P(LVL, REM_RAM1) | REM | LEVEL(L3) | P(SNOOP, HIT), /* 0x0b: L3 miss, shared */
+ OP_LH | P(LVL, LOC_RAM) | LEVEL(RAM) | SNOOP_NONE_MISS, /* 0x0c: L3 miss, excl */
+ OP_LH | P(LVL, REM_RAM1) | LEVEL(RAM) | REM | SNOOP_NONE_MISS, /* 0x0d: L3 miss, excl */
+ OP_LH | P(LVL, IO) | LEVEL(NA) | P(SNOOP, NONE), /* 0x0e: I/O */
+ OP_LH | P(LVL, UNC) | LEVEL(NA) | P(SNOOP, NONE), /* 0x0f: uncached */
};
/* Patch up minor differences in the bits */
void __init intel_pmu_pebs_data_source_nhm(void)
{
- pebs_data_source[0x05] = OP_LH | P(LVL, L3) | P(SNOOP, HIT);
- pebs_data_source[0x06] = OP_LH | P(LVL, L3) | P(SNOOP, HITM);
- pebs_data_source[0x07] = OP_LH | P(LVL, L3) | P(SNOOP, HITM);
+ pebs_data_source[0x05] = OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOP, HIT);
+ pebs_data_source[0x06] = OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOP, HITM);
+ pebs_data_source[0x07] = OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOP, HITM);
+}
+
+void __init intel_pmu_pebs_data_source_skl(bool pmem)
+{
+ u64 pmem_or_l4 = pmem ? LEVEL(PMEM) : LEVEL(L4);
+
+ pebs_data_source[0x08] = OP_LH | pmem_or_l4 | P(SNOOP, HIT);
+ pebs_data_source[0x09] = OP_LH | pmem_or_l4 | REM | P(SNOOP, HIT);
+ pebs_data_source[0x0b] = OP_LH | LEVEL(RAM) | REM | P(SNOOP, NONE);
+ pebs_data_source[0x0c] = OP_LH | LEVEL(ANY_CACHE) | REM | P(SNOOPX, FWD);
+ pebs_data_source[0x0d] = OP_LH | LEVEL(ANY_CACHE) | REM | P(SNOOP, HITM);
}
static u64 precise_store_data(u64 status)
@@ -149,8 +162,6 @@ static u64 load_latency_data(u64 status)
{
union intel_x86_pebs_dse dse;
u64 val;
- int model = boot_cpu_data.x86_model;
- int fam = boot_cpu_data.x86;
dse.val = status;
@@ -162,8 +173,7 @@ static u64 load_latency_data(u64 status)
/*
* Nehalem models do not support TLB, Lock infos
*/
- if (fam == 0x6 && (model == 26 || model == 30
- || model == 31 || model == 46)) {
+ if (x86_pmu.pebs_no_tlb) {
val |= P(TLB, NA) | P(LOCK, NA);
return val;
}
@@ -606,12 +616,6 @@ static inline void intel_pmu_drain_pebs_buffer(void)
x86_pmu.drain_pebs(&regs);
}
-void intel_pmu_pebs_sched_task(struct perf_event_context *ctx, bool sched_in)
-{
- if (!sched_in)
- intel_pmu_drain_pebs_buffer();
-}
-
/*
* PEBS
*/
@@ -651,6 +655,12 @@ struct event_constraint intel_glm_pebs_event_constraints[] = {
EVENT_CONSTRAINT_END
};
+struct event_constraint intel_glp_pebs_event_constraints[] = {
+ /* Allow all events as PEBS with no flags */
+ INTEL_ALL_EVENT_CONSTRAINT(0, 0xf),
+ EVENT_CONSTRAINT_END
+};
+
struct event_constraint intel_nehalem_pebs_event_constraints[] = {
INTEL_PLD_CONSTRAINT(0x100b, 0xf), /* MEM_INST_RETIRED.* */
INTEL_FLAGS_EVENT_CONSTRAINT(0x0f, 0xf), /* MEM_UNCORE_RETIRED.* */
@@ -816,6 +826,14 @@ static inline bool pebs_needs_sched_cb(struct cpu_hw_events *cpuc)
return cpuc->n_pebs && (cpuc->n_pebs == cpuc->n_large_pebs);
}
+void intel_pmu_pebs_sched_task(struct perf_event_context *ctx, bool sched_in)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ if (!sched_in && pebs_needs_sched_cb(cpuc))
+ intel_pmu_drain_pebs_buffer();
+}
+
static inline void pebs_update_threshold(struct cpu_hw_events *cpuc)
{
struct debug_store *ds = cpuc->ds;
@@ -889,6 +907,8 @@ void intel_pmu_pebs_enable(struct perf_event *event)
if (hwc->flags & PERF_X86_EVENT_AUTO_RELOAD) {
ds->pebs_event_reset[hwc->idx] =
(u64)(-hwc->sample_period) & x86_pmu.cntval_mask;
+ } else {
+ ds->pebs_event_reset[hwc->idx] = 0;
}
}
@@ -1165,7 +1185,7 @@ static void setup_pebs_sample_data(struct perf_event *event,
else
regs->flags &= ~PERF_EFLAGS_EXACT;
- if ((sample_type & PERF_SAMPLE_ADDR) &&
+ if ((sample_type & (PERF_SAMPLE_ADDR | PERF_SAMPLE_PHYS_ADDR)) &&
x86_pmu.intel_cap.pebs_format >= 1)
data->addr = pebs->dla;
diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c
index f924629836a8..8a6bbacd17dc 100644
--- a/arch/x86/events/intel/lbr.c
+++ b/arch/x86/events/intel/lbr.c
@@ -18,7 +18,7 @@ enum {
LBR_FORMAT_MAX_KNOWN = LBR_FORMAT_TIME,
};
-static enum {
+static const enum {
LBR_EIP_FLAGS = 1,
LBR_TSX = 2,
} lbr_desc[LBR_FORMAT_MAX_KNOWN + 1] = {
@@ -109,6 +109,9 @@ enum {
X86_BR_ZERO_CALL = 1 << 15,/* zero length call */
X86_BR_CALL_STACK = 1 << 16,/* call stack */
X86_BR_IND_JMP = 1 << 17,/* indirect jump */
+
+ X86_BR_TYPE_SAVE = 1 << 18,/* indicate to save branch type */
+
};
#define X86_BR_PLM (X86_BR_USER | X86_BR_KERNEL)
@@ -287,7 +290,7 @@ inline u64 lbr_from_signext_quirk_wr(u64 val)
/*
* If quirk is needed, ensure sign extension is 61 bits:
*/
-u64 lbr_from_signext_quirk_rd(u64 val)
+static u64 lbr_from_signext_quirk_rd(u64 val)
{
if (static_branch_unlikely(&lbr_from_quirk_key)) {
/*
@@ -380,8 +383,12 @@ static void __intel_pmu_lbr_save(struct x86_perf_task_context *task_ctx)
void intel_pmu_lbr_sched_task(struct perf_event_context *ctx, bool sched_in)
{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
struct x86_perf_task_context *task_ctx;
+ if (!cpuc->lbr_users)
+ return;
+
/*
* If LBR callstack feature is enabled and the stack was saved when
* the task was scheduled out, restore the stack. Otherwise flush
@@ -510,6 +517,7 @@ static void intel_pmu_lbr_read_32(struct cpu_hw_events *cpuc)
cpuc->lbr_entries[i].in_tx = 0;
cpuc->lbr_entries[i].abort = 0;
cpuc->lbr_entries[i].cycles = 0;
+ cpuc->lbr_entries[i].type = 0;
cpuc->lbr_entries[i].reserved = 0;
}
cpuc->lbr_stack.nr = i;
@@ -596,6 +604,7 @@ static void intel_pmu_lbr_read_64(struct cpu_hw_events *cpuc)
cpuc->lbr_entries[out].in_tx = in_tx;
cpuc->lbr_entries[out].abort = abort;
cpuc->lbr_entries[out].cycles = cycles;
+ cpuc->lbr_entries[out].type = 0;
cpuc->lbr_entries[out].reserved = 0;
out++;
}
@@ -673,6 +682,10 @@ static int intel_pmu_setup_sw_lbr_filter(struct perf_event *event)
if (br_type & PERF_SAMPLE_BRANCH_CALL)
mask |= X86_BR_CALL | X86_BR_ZERO_CALL;
+
+ if (br_type & PERF_SAMPLE_BRANCH_TYPE_SAVE)
+ mask |= X86_BR_TYPE_SAVE;
+
/*
* stash actual user request into reg, it may
* be used by fixup code for some CPU
@@ -926,6 +939,43 @@ static int branch_type(unsigned long from, unsigned long to, int abort)
return ret;
}
+#define X86_BR_TYPE_MAP_MAX 16
+
+static int branch_map[X86_BR_TYPE_MAP_MAX] = {
+ PERF_BR_CALL, /* X86_BR_CALL */
+ PERF_BR_RET, /* X86_BR_RET */
+ PERF_BR_SYSCALL, /* X86_BR_SYSCALL */
+ PERF_BR_SYSRET, /* X86_BR_SYSRET */
+ PERF_BR_UNKNOWN, /* X86_BR_INT */
+ PERF_BR_UNKNOWN, /* X86_BR_IRET */
+ PERF_BR_COND, /* X86_BR_JCC */
+ PERF_BR_UNCOND, /* X86_BR_JMP */
+ PERF_BR_UNKNOWN, /* X86_BR_IRQ */
+ PERF_BR_IND_CALL, /* X86_BR_IND_CALL */
+ PERF_BR_UNKNOWN, /* X86_BR_ABORT */
+ PERF_BR_UNKNOWN, /* X86_BR_IN_TX */
+ PERF_BR_UNKNOWN, /* X86_BR_NO_TX */
+ PERF_BR_CALL, /* X86_BR_ZERO_CALL */
+ PERF_BR_UNKNOWN, /* X86_BR_CALL_STACK */
+ PERF_BR_IND, /* X86_BR_IND_JMP */
+};
+
+static int
+common_branch_type(int type)
+{
+ int i;
+
+ type >>= 2; /* skip X86_BR_USER and X86_BR_KERNEL */
+
+ if (type) {
+ i = __ffs(type);
+ if (i < X86_BR_TYPE_MAP_MAX)
+ return branch_map[i];
+ }
+
+ return PERF_BR_UNKNOWN;
+}
+
/*
* implement actual branch filter based on user demand.
* Hardware may not exactly satisfy that request, thus
@@ -942,7 +992,8 @@ intel_pmu_lbr_filter(struct cpu_hw_events *cpuc)
bool compress = false;
/* if sampling all branches, then nothing to filter */
- if ((br_sel & X86_BR_ALL) == X86_BR_ALL)
+ if (((br_sel & X86_BR_ALL) == X86_BR_ALL) &&
+ ((br_sel & X86_BR_TYPE_SAVE) != X86_BR_TYPE_SAVE))
return;
for (i = 0; i < cpuc->lbr_stack.nr; i++) {
@@ -963,6 +1014,9 @@ intel_pmu_lbr_filter(struct cpu_hw_events *cpuc)
cpuc->lbr_entries[i].from = 0;
compress = true;
}
+
+ if ((br_sel & X86_BR_TYPE_SAVE) == X86_BR_TYPE_SAVE)
+ cpuc->lbr_entries[i].type = common_branch_type(type);
}
if (!compress)
diff --git a/arch/x86/events/intel/p4.c b/arch/x86/events/intel/p4.c
index eb0533558c2b..d32c0eed38ca 100644
--- a/arch/x86/events/intel/p4.c
+++ b/arch/x86/events/intel/p4.c
@@ -587,7 +587,7 @@ static __initconst const u64 p4_hw_cache_event_ids
* P4_CONFIG_ALIASABLE or bits for P4_PEBS_METRIC, they are
* either up to date automatically or not applicable at all.
*/
-struct p4_event_alias {
+static struct p4_event_alias {
u64 original;
u64 alternative;
} p4_event_aliases[] = {
diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c
index ae8324d65e61..81fd41d5a0d9 100644
--- a/arch/x86/events/intel/pt.c
+++ b/arch/x86/events/intel/pt.c
@@ -471,8 +471,9 @@ static void pt_config(struct perf_event *event)
struct pt *pt = this_cpu_ptr(&pt_ctx);
u64 reg;
- if (!event->hw.itrace_started) {
- event->hw.itrace_started = 1;
+ /* First round: clear STATUS, in particular the PSB byte counter. */
+ if (!event->hw.config) {
+ perf_event_itrace_started(event);
wrmsrl(MSR_IA32_RTIT_STATUS, 0);
}
diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
index a45e2114a846..005908ee9333 100644
--- a/arch/x86/events/intel/rapl.c
+++ b/arch/x86/events/intel/rapl.c
@@ -559,7 +559,7 @@ static struct attribute_group rapl_pmu_format_group = {
.attrs = rapl_formats_attr,
};
-const struct attribute_group *rapl_attr_groups[] = {
+static const struct attribute_group *rapl_attr_groups[] = {
&rapl_pmu_attr_group,
&rapl_pmu_format_group,
&rapl_pmu_events_group,
@@ -775,6 +775,9 @@ static const struct x86_cpu_id rapl_cpu_match[] __initconst = {
X86_RAPL_MODEL_MATCH(INTEL_FAM6_KABYLAKE_DESKTOP, skl_rapl_init),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT, hsw_rapl_init),
+ X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_DENVERTON, hsw_rapl_init),
+
+ X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GEMINI_LAKE, hsw_rapl_init),
{},
};
diff --git a/arch/x86/events/intel/uncore.c b/arch/x86/events/intel/uncore.c
index 44ec523287f6..d45e06346f14 100644
--- a/arch/x86/events/intel/uncore.c
+++ b/arch/x86/events/intel/uncore.c
@@ -721,7 +721,7 @@ static struct attribute *uncore_pmu_attrs[] = {
NULL,
};
-static struct attribute_group uncore_pmu_attr_group = {
+static const struct attribute_group uncore_pmu_attr_group = {
.attrs = uncore_pmu_attrs,
};
@@ -822,7 +822,7 @@ static int __init uncore_type_init(struct intel_uncore_type *type, bool setid)
pmus[i].type = type;
pmus[i].boxes = kzalloc(size, GFP_KERNEL);
if (!pmus[i].boxes)
- return -ENOMEM;
+ goto err;
}
type->pmus = pmus;
@@ -836,7 +836,7 @@ static int __init uncore_type_init(struct intel_uncore_type *type, bool setid)
attr_group = kzalloc(sizeof(struct attribute *) * (i + 1) +
sizeof(*attr_group), GFP_KERNEL);
if (!attr_group)
- return -ENOMEM;
+ goto err;
attrs = (struct attribute **)(attr_group + 1);
attr_group->name = "events";
@@ -849,7 +849,15 @@ static int __init uncore_type_init(struct intel_uncore_type *type, bool setid)
}
type->pmu_group = &uncore_pmu_attr_group;
+
return 0;
+
+err:
+ for (i = 0; i < type->num_boxes; i++)
+ kfree(pmus[i].boxes);
+ kfree(pmus);
+
+ return -ENOMEM;
}
static int __init
diff --git a/arch/x86/events/intel/uncore_nhmex.c b/arch/x86/events/intel/uncore_nhmex.c
index cda569332005..6a5cbe90f859 100644
--- a/arch/x86/events/intel/uncore_nhmex.c
+++ b/arch/x86/events/intel/uncore_nhmex.c
@@ -272,7 +272,7 @@ static struct attribute *nhmex_uncore_ubox_formats_attr[] = {
NULL,
};
-static struct attribute_group nhmex_uncore_ubox_format_group = {
+static const struct attribute_group nhmex_uncore_ubox_format_group = {
.name = "format",
.attrs = nhmex_uncore_ubox_formats_attr,
};
@@ -299,7 +299,7 @@ static struct attribute *nhmex_uncore_cbox_formats_attr[] = {
NULL,
};
-static struct attribute_group nhmex_uncore_cbox_format_group = {
+static const struct attribute_group nhmex_uncore_cbox_format_group = {
.name = "format",
.attrs = nhmex_uncore_cbox_formats_attr,
};
@@ -407,7 +407,7 @@ static struct attribute *nhmex_uncore_bbox_formats_attr[] = {
NULL,
};
-static struct attribute_group nhmex_uncore_bbox_format_group = {
+static const struct attribute_group nhmex_uncore_bbox_format_group = {
.name = "format",
.attrs = nhmex_uncore_bbox_formats_attr,
};
@@ -484,7 +484,7 @@ static struct attribute *nhmex_uncore_sbox_formats_attr[] = {
NULL,
};
-static struct attribute_group nhmex_uncore_sbox_format_group = {
+static const struct attribute_group nhmex_uncore_sbox_format_group = {
.name = "format",
.attrs = nhmex_uncore_sbox_formats_attr,
};
@@ -898,7 +898,7 @@ static struct attribute *nhmex_uncore_mbox_formats_attr[] = {
NULL,
};
-static struct attribute_group nhmex_uncore_mbox_format_group = {
+static const struct attribute_group nhmex_uncore_mbox_format_group = {
.name = "format",
.attrs = nhmex_uncore_mbox_formats_attr,
};
@@ -1163,7 +1163,7 @@ static struct attribute *nhmex_uncore_rbox_formats_attr[] = {
NULL,
};
-static struct attribute_group nhmex_uncore_rbox_format_group = {
+static const struct attribute_group nhmex_uncore_rbox_format_group = {
.name = "format",
.attrs = nhmex_uncore_rbox_formats_attr,
};
diff --git a/arch/x86/events/intel/uncore_snb.c b/arch/x86/events/intel/uncore_snb.c
index a3dcc12bef4a..db1127ce685e 100644
--- a/arch/x86/events/intel/uncore_snb.c
+++ b/arch/x86/events/intel/uncore_snb.c
@@ -130,7 +130,7 @@ static struct attribute *snb_uncore_formats_attr[] = {
NULL,
};
-static struct attribute_group snb_uncore_format_group = {
+static const struct attribute_group snb_uncore_format_group = {
.name = "format",
.attrs = snb_uncore_formats_attr,
};
@@ -289,7 +289,7 @@ static struct attribute *snb_uncore_imc_formats_attr[] = {
NULL,
};
-static struct attribute_group snb_uncore_imc_format_group = {
+static const struct attribute_group snb_uncore_imc_format_group = {
.name = "format",
.attrs = snb_uncore_imc_formats_attr,
};
@@ -769,7 +769,7 @@ static struct attribute *nhm_uncore_formats_attr[] = {
NULL,
};
-static struct attribute_group nhm_uncore_format_group = {
+static const struct attribute_group nhm_uncore_format_group = {
.name = "format",
.attrs = nhm_uncore_formats_attr,
};
diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index dae2fedc1601..a7196818416a 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -316,7 +316,7 @@
#define SKX_UPI_PCI_PMON_CTL0 0x350
#define SKX_UPI_PCI_PMON_CTR0 0x318
#define SKX_UPI_PCI_PMON_BOX_CTL 0x378
-#define SKX_PMON_CTL_UMASK_EXT 0xff
+#define SKX_UPI_CTL_UMASK_EXT 0xffefff
/* SKX M2M */
#define SKX_M2M_PCI_PMON_CTL0 0x228
@@ -328,7 +328,7 @@ DEFINE_UNCORE_FORMAT_ATTR(event2, event, "config:0-6");
DEFINE_UNCORE_FORMAT_ATTR(event_ext, event, "config:0-7,21");
DEFINE_UNCORE_FORMAT_ATTR(use_occ_ctr, use_occ_ctr, "config:7");
DEFINE_UNCORE_FORMAT_ATTR(umask, umask, "config:8-15");
-DEFINE_UNCORE_FORMAT_ATTR(umask_ext, umask, "config:8-15,32-39");
+DEFINE_UNCORE_FORMAT_ATTR(umask_ext, umask, "config:8-15,32-43,45-55");
DEFINE_UNCORE_FORMAT_ATTR(qor, qor, "config:16");
DEFINE_UNCORE_FORMAT_ATTR(edge, edge, "config:18");
DEFINE_UNCORE_FORMAT_ATTR(tid_en, tid_en, "config:19");
@@ -351,7 +351,6 @@ DEFINE_UNCORE_FORMAT_ATTR(filter_cid, filter_cid, "config1:5");
DEFINE_UNCORE_FORMAT_ATTR(filter_link, filter_link, "config1:5-8");
DEFINE_UNCORE_FORMAT_ATTR(filter_link2, filter_link, "config1:6-8");
DEFINE_UNCORE_FORMAT_ATTR(filter_link3, filter_link, "config1:12");
-DEFINE_UNCORE_FORMAT_ATTR(filter_link4, filter_link, "config1:9-12");
DEFINE_UNCORE_FORMAT_ATTR(filter_nid, filter_nid, "config1:10-17");
DEFINE_UNCORE_FORMAT_ATTR(filter_nid2, filter_nid, "config1:32-47");
DEFINE_UNCORE_FORMAT_ATTR(filter_state, filter_state, "config1:18-22");
@@ -603,27 +602,27 @@ static struct uncore_event_desc snbep_uncore_qpi_events[] = {
{ /* end: all zeroes */ },
};
-static struct attribute_group snbep_uncore_format_group = {
+static const struct attribute_group snbep_uncore_format_group = {
.name = "format",
.attrs = snbep_uncore_formats_attr,
};
-static struct attribute_group snbep_uncore_ubox_format_group = {
+static const struct attribute_group snbep_uncore_ubox_format_group = {
.name = "format",
.attrs = snbep_uncore_ubox_formats_attr,
};
-static struct attribute_group snbep_uncore_cbox_format_group = {
+static const struct attribute_group snbep_uncore_cbox_format_group = {
.name = "format",
.attrs = snbep_uncore_cbox_formats_attr,
};
-static struct attribute_group snbep_uncore_pcu_format_group = {
+static const struct attribute_group snbep_uncore_pcu_format_group = {
.name = "format",
.attrs = snbep_uncore_pcu_formats_attr,
};
-static struct attribute_group snbep_uncore_qpi_format_group = {
+static const struct attribute_group snbep_uncore_qpi_format_group = {
.name = "format",
.attrs = snbep_uncore_qpi_formats_attr,
};
@@ -1432,27 +1431,27 @@ static struct attribute *ivbep_uncore_qpi_formats_attr[] = {
NULL,
};
-static struct attribute_group ivbep_uncore_format_group = {
+static const struct attribute_group ivbep_uncore_format_group = {
.name = "format",
.attrs = ivbep_uncore_formats_attr,
};
-static struct attribute_group ivbep_uncore_ubox_format_group = {
+static const struct attribute_group ivbep_uncore_ubox_format_group = {
.name = "format",
.attrs = ivbep_uncore_ubox_formats_attr,
};
-static struct attribute_group ivbep_uncore_cbox_format_group = {
+static const struct attribute_group ivbep_uncore_cbox_format_group = {
.name = "format",
.attrs = ivbep_uncore_cbox_formats_attr,
};
-static struct attribute_group ivbep_uncore_pcu_format_group = {
+static const struct attribute_group ivbep_uncore_pcu_format_group = {
.name = "format",
.attrs = ivbep_uncore_pcu_formats_attr,
};
-static struct attribute_group ivbep_uncore_qpi_format_group = {
+static const struct attribute_group ivbep_uncore_qpi_format_group = {
.name = "format",
.attrs = ivbep_uncore_qpi_formats_attr,
};
@@ -1888,7 +1887,7 @@ static struct attribute *knl_uncore_ubox_formats_attr[] = {
NULL,
};
-static struct attribute_group knl_uncore_ubox_format_group = {
+static const struct attribute_group knl_uncore_ubox_format_group = {
.name = "format",
.attrs = knl_uncore_ubox_formats_attr,
};
@@ -1928,7 +1927,7 @@ static struct attribute *knl_uncore_cha_formats_attr[] = {
NULL,
};
-static struct attribute_group knl_uncore_cha_format_group = {
+static const struct attribute_group knl_uncore_cha_format_group = {
.name = "format",
.attrs = knl_uncore_cha_formats_attr,
};
@@ -2038,7 +2037,7 @@ static struct attribute *knl_uncore_pcu_formats_attr[] = {
NULL,
};
-static struct attribute_group knl_uncore_pcu_format_group = {
+static const struct attribute_group knl_uncore_pcu_format_group = {
.name = "format",
.attrs = knl_uncore_pcu_formats_attr,
};
@@ -2188,7 +2187,7 @@ static struct attribute *knl_uncore_irp_formats_attr[] = {
NULL,
};
-static struct attribute_group knl_uncore_irp_format_group = {
+static const struct attribute_group knl_uncore_irp_format_group = {
.name = "format",
.attrs = knl_uncore_irp_formats_attr,
};
@@ -2386,7 +2385,7 @@ static struct attribute *hswep_uncore_ubox_formats_attr[] = {
NULL,
};
-static struct attribute_group hswep_uncore_ubox_format_group = {
+static const struct attribute_group hswep_uncore_ubox_format_group = {
.name = "format",
.attrs = hswep_uncore_ubox_formats_attr,
};
@@ -2440,7 +2439,7 @@ static struct attribute *hswep_uncore_cbox_formats_attr[] = {
NULL,
};
-static struct attribute_group hswep_uncore_cbox_format_group = {
+static const struct attribute_group hswep_uncore_cbox_format_group = {
.name = "format",
.attrs = hswep_uncore_cbox_formats_attr,
};
@@ -2622,7 +2621,7 @@ static struct attribute *hswep_uncore_sbox_formats_attr[] = {
NULL,
};
-static struct attribute_group hswep_uncore_sbox_format_group = {
+static const struct attribute_group hswep_uncore_sbox_format_group = {
.name = "format",
.attrs = hswep_uncore_sbox_formats_attr,
};
@@ -3302,7 +3301,6 @@ static struct attribute *skx_uncore_cha_formats_attr[] = {
&format_attr_inv.attr,
&format_attr_thresh8.attr,
&format_attr_filter_tid4.attr,
- &format_attr_filter_link4.attr,
&format_attr_filter_state5.attr,
&format_attr_filter_rem.attr,
&format_attr_filter_loc.attr,
@@ -3312,12 +3310,11 @@ static struct attribute *skx_uncore_cha_formats_attr[] = {
&format_attr_filter_opc_0.attr,
&format_attr_filter_opc_1.attr,
&format_attr_filter_nc.attr,
- &format_attr_filter_c6.attr,
&format_attr_filter_isoc.attr,
NULL,
};
-static struct attribute_group skx_uncore_chabox_format_group = {
+static const struct attribute_group skx_uncore_chabox_format_group = {
.name = "format",
.attrs = skx_uncore_cha_formats_attr,
};
@@ -3333,8 +3330,11 @@ static struct extra_reg skx_uncore_cha_extra_regs[] = {
SNBEP_CBO_EVENT_EXTRA_REG(0x0534, 0xffff, 0x4),
SNBEP_CBO_EVENT_EXTRA_REG(0x0934, 0xffff, 0x4),
SNBEP_CBO_EVENT_EXTRA_REG(0x1134, 0xffff, 0x4),
- SNBEP_CBO_EVENT_EXTRA_REG(0x2134, 0xffff, 0x4),
- SNBEP_CBO_EVENT_EXTRA_REG(0x8134, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x3134, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x9134, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x35, 0xff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x36, 0xff, 0x8),
+ EVENT_EXTRA_END
};
static u64 skx_cha_filter_mask(int fields)
@@ -3347,6 +3347,17 @@ static u64 skx_cha_filter_mask(int fields)
mask |= SKX_CHA_MSR_PMON_BOX_FILTER_LINK;
if (fields & 0x4)
mask |= SKX_CHA_MSR_PMON_BOX_FILTER_STATE;
+ if (fields & 0x8) {
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_REM;
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_LOC;
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_ALL_OPC;
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_NM;
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_NOT_NM;
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_OPC0;
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_OPC1;
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_NC;
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_ISOC;
+ }
return mask;
}
@@ -3416,7 +3427,7 @@ static struct attribute *skx_uncore_iio_formats_attr[] = {
NULL,
};
-static struct attribute_group skx_uncore_iio_format_group = {
+static const struct attribute_group skx_uncore_iio_format_group = {
.name = "format",
.attrs = skx_uncore_iio_formats_attr,
};
@@ -3451,7 +3462,7 @@ static struct intel_uncore_ops skx_uncore_iio_ops = {
static struct intel_uncore_type skx_uncore_iio = {
.name = "iio",
.num_counters = 4,
- .num_boxes = 5,
+ .num_boxes = 6,
.perf_ctr_bits = 48,
.event_ctl = SKX_IIO0_MSR_PMON_CTL0,
.perf_ctr = SKX_IIO0_MSR_PMON_CTR0,
@@ -3473,7 +3484,7 @@ static struct attribute *skx_uncore_formats_attr[] = {
NULL,
};
-static struct attribute_group skx_uncore_format_group = {
+static const struct attribute_group skx_uncore_format_group = {
.name = "format",
.attrs = skx_uncore_formats_attr,
};
@@ -3481,7 +3492,7 @@ static struct attribute_group skx_uncore_format_group = {
static struct intel_uncore_type skx_uncore_irp = {
.name = "irp",
.num_counters = 2,
- .num_boxes = 5,
+ .num_boxes = 6,
.perf_ctr_bits = 48,
.event_ctl = SKX_IRP0_MSR_PMON_CTL0,
.perf_ctr = SKX_IRP0_MSR_PMON_CTR0,
@@ -3492,6 +3503,26 @@ static struct intel_uncore_type skx_uncore_irp = {
.format_group = &skx_uncore_format_group,
};
+static struct attribute *skx_uncore_pcu_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ &format_attr_occ_invert.attr,
+ &format_attr_occ_edge_det.attr,
+ &format_attr_filter_band0.attr,
+ &format_attr_filter_band1.attr,
+ &format_attr_filter_band2.attr,
+ &format_attr_filter_band3.attr,
+ NULL,
+};
+
+static struct attribute_group skx_uncore_pcu_format_group = {
+ .name = "format",
+ .attrs = skx_uncore_pcu_formats_attr,
+};
+
static struct intel_uncore_ops skx_uncore_pcu_ops = {
IVBEP_UNCORE_MSR_OPS_COMMON_INIT(),
.hw_config = hswep_pcu_hw_config,
@@ -3510,7 +3541,7 @@ static struct intel_uncore_type skx_uncore_pcu = {
.box_ctl = HSWEP_PCU_MSR_PMON_BOX_CTL,
.num_shared_regs = 1,
.ops = &skx_uncore_pcu_ops,
- .format_group = &snbep_uncore_pcu_format_group,
+ .format_group = &skx_uncore_pcu_format_group,
};
static struct intel_uncore_type *skx_msr_uncores[] = {
@@ -3574,7 +3605,7 @@ static struct attribute *skx_upi_uncore_formats_attr[] = {
NULL,
};
-static struct attribute_group skx_upi_uncore_format_group = {
+static const struct attribute_group skx_upi_uncore_format_group = {
.name = "format",
.attrs = skx_upi_uncore_formats_attr,
};
@@ -3603,8 +3634,8 @@ static struct intel_uncore_type skx_uncore_upi = {
.perf_ctr_bits = 48,
.perf_ctr = SKX_UPI_PCI_PMON_CTR0,
.event_ctl = SKX_UPI_PCI_PMON_CTL0,
- .event_mask = SNBEP_QPI_PCI_PMON_RAW_EVENT_MASK,
- .event_mask_ext = SKX_PMON_CTL_UMASK_EXT,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .event_mask_ext = SKX_UPI_CTL_UMASK_EXT,
.box_ctl = SKX_UPI_PCI_PMON_BOX_CTL,
.ops = &skx_upi_uncore_pci_ops,
.format_group = &skx_upi_uncore_format_group,
diff --git a/arch/x86/events/msr.c b/arch/x86/events/msr.c
index 4bb3ec69e8ea..06723671ae4e 100644
--- a/arch/x86/events/msr.c
+++ b/arch/x86/events/msr.c
@@ -63,6 +63,14 @@ static bool test_intel(int idx)
case INTEL_FAM6_ATOM_SILVERMONT1:
case INTEL_FAM6_ATOM_SILVERMONT2:
case INTEL_FAM6_ATOM_AIRMONT:
+
+ case INTEL_FAM6_ATOM_GOLDMONT:
+ case INTEL_FAM6_ATOM_DENVERTON:
+
+ case INTEL_FAM6_ATOM_GEMINI_LAKE:
+
+ case INTEL_FAM6_XEON_PHI_KNL:
+ case INTEL_FAM6_XEON_PHI_KNM:
if (idx == PERF_MSR_SMI)
return true;
break;
diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
index be3d36254040..4196f81ec0e1 100644
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -91,7 +91,7 @@ struct amd_nb {
(PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_ADDR | \
PERF_SAMPLE_ID | PERF_SAMPLE_CPU | PERF_SAMPLE_STREAM_ID | \
PERF_SAMPLE_DATA_SRC | PERF_SAMPLE_IDENTIFIER | \
- PERF_SAMPLE_TRANSACTION)
+ PERF_SAMPLE_TRANSACTION | PERF_SAMPLE_PHYS_ADDR)
/*
* A debug store configuration.
@@ -558,10 +558,14 @@ struct x86_pmu {
int attr_rdpmc;
struct attribute **format_attrs;
struct attribute **event_attrs;
+ struct attribute **caps_attrs;
ssize_t (*events_sysfs_show)(char *page, u64 config);
struct attribute **cpu_events;
+ unsigned long attr_freeze_on_smi;
+ struct attribute **attrs;
+
/*
* CPU Hotplug hooks
*/
@@ -588,7 +592,8 @@ struct x86_pmu {
pebs :1,
pebs_active :1,
pebs_broken :1,
- pebs_prec_dist :1;
+ pebs_prec_dist :1,
+ pebs_no_tlb :1;
int pebs_record_size;
int pebs_buffer_size;
void (*drain_pebs)(struct pt_regs *regs);
@@ -738,6 +743,8 @@ int x86_reserve_hardware(void);
void x86_release_hardware(void);
+int x86_pmu_max_precise(void);
+
void hw_perf_lbr_event_destroy(struct perf_event *event);
int x86_setup_perfctr(struct perf_event *event);
@@ -876,6 +883,8 @@ extern struct event_constraint intel_slm_pebs_event_constraints[];
extern struct event_constraint intel_glm_pebs_event_constraints[];
+extern struct event_constraint intel_glp_pebs_event_constraints[];
+
extern struct event_constraint intel_nehalem_pebs_event_constraints[];
extern struct event_constraint intel_westmere_pebs_event_constraints[];
@@ -942,6 +951,8 @@ void intel_pmu_lbr_init_knl(void);
void intel_pmu_pebs_data_source_nhm(void);
+void intel_pmu_pebs_data_source_skl(bool pmem);
+
int intel_pmu_setup_lbr_filter(struct perf_event *event);
void intel_pt_interrupt(void);
diff --git a/arch/x86/hyperv/Makefile b/arch/x86/hyperv/Makefile
index 171ae09864d7..367a8203cfcf 100644
--- a/arch/x86/hyperv/Makefile
+++ b/arch/x86/hyperv/Makefile
@@ -1 +1 @@
-obj-y := hv_init.o
+obj-y := hv_init.o mmu.o
diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c
index 5b882cc0c0e9..a5db63f728a2 100644
--- a/arch/x86/hyperv/hv_init.c
+++ b/arch/x86/hyperv/hv_init.c
@@ -26,6 +26,8 @@
#include <linux/mm.h>
#include <linux/clockchips.h>
#include <linux/hyperv.h>
+#include <linux/slab.h>
+#include <linux/cpuhotplug.h>
#ifdef CONFIG_HYPERV_TSCPAGE
@@ -75,10 +77,30 @@ static struct clocksource hyperv_cs_msr = {
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
-static void *hypercall_pg;
+void *hv_hypercall_pg;
+EXPORT_SYMBOL_GPL(hv_hypercall_pg);
struct clocksource *hyperv_cs;
EXPORT_SYMBOL_GPL(hyperv_cs);
+u32 *hv_vp_index;
+EXPORT_SYMBOL_GPL(hv_vp_index);
+
+u32 hv_max_vp_index;
+
+static int hv_cpu_init(unsigned int cpu)
+{
+ u64 msr_vp_index;
+
+ hv_get_vp_index(msr_vp_index);
+
+ hv_vp_index[smp_processor_id()] = msr_vp_index;
+
+ if (msr_vp_index > hv_max_vp_index)
+ hv_max_vp_index = msr_vp_index;
+
+ return 0;
+}
+
/*
* This function is to be invoked early in the boot sequence after the
* hypervisor has been detected.
@@ -94,6 +116,16 @@ void hyperv_init(void)
if (x86_hyper != &x86_hyper_ms_hyperv)
return;
+ /* Allocate percpu VP index */
+ hv_vp_index = kmalloc_array(num_possible_cpus(), sizeof(*hv_vp_index),
+ GFP_KERNEL);
+ if (!hv_vp_index)
+ return;
+
+ if (cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "x86/hyperv_init:online",
+ hv_cpu_init, NULL) < 0)
+ goto free_vp_index;
+
/*
* Setup the hypercall page and enable hypercalls.
* 1. Register the guest ID
@@ -102,17 +134,19 @@ void hyperv_init(void)
guest_id = generate_guest_id(0, LINUX_VERSION_CODE, 0);
wrmsrl(HV_X64_MSR_GUEST_OS_ID, guest_id);
- hypercall_pg = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_RX);
- if (hypercall_pg == NULL) {
+ hv_hypercall_pg = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_RX);
+ if (hv_hypercall_pg == NULL) {
wrmsrl(HV_X64_MSR_GUEST_OS_ID, 0);
- return;
+ goto free_vp_index;
}
rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
hypercall_msr.enable = 1;
- hypercall_msr.guest_physical_address = vmalloc_to_pfn(hypercall_pg);
+ hypercall_msr.guest_physical_address = vmalloc_to_pfn(hv_hypercall_pg);
wrmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
+ hyper_alloc_mmu();
+
/*
* Register Hyper-V specific clocksource.
*/
@@ -148,6 +182,12 @@ register_msr_cs:
hyperv_cs = &hyperv_cs_msr;
if (ms_hyperv.features & HV_X64_MSR_TIME_REF_COUNT_AVAILABLE)
clocksource_register_hz(&hyperv_cs_msr, NSEC_PER_SEC/100);
+
+ return;
+
+free_vp_index:
+ kfree(hv_vp_index);
+ hv_vp_index = NULL;
}
/*
@@ -170,51 +210,6 @@ void hyperv_cleanup(void)
}
EXPORT_SYMBOL_GPL(hyperv_cleanup);
-/*
- * hv_do_hypercall- Invoke the specified hypercall
- */
-u64 hv_do_hypercall(u64 control, void *input, void *output)
-{
- u64 input_address = (input) ? virt_to_phys(input) : 0;
- u64 output_address = (output) ? virt_to_phys(output) : 0;
-#ifdef CONFIG_X86_64
- u64 hv_status = 0;
-
- if (!hypercall_pg)
- return (u64)ULLONG_MAX;
-
- __asm__ __volatile__("mov %0, %%r8" : : "r" (output_address) : "r8");
- __asm__ __volatile__("call *%3" : "=a" (hv_status) :
- "c" (control), "d" (input_address),
- "m" (hypercall_pg));
-
- return hv_status;
-
-#else
-
- u32 control_hi = control >> 32;
- u32 control_lo = control & 0xFFFFFFFF;
- u32 hv_status_hi = 1;
- u32 hv_status_lo = 1;
- u32 input_address_hi = input_address >> 32;
- u32 input_address_lo = input_address & 0xFFFFFFFF;
- u32 output_address_hi = output_address >> 32;
- u32 output_address_lo = output_address & 0xFFFFFFFF;
-
- if (!hypercall_pg)
- return (u64)ULLONG_MAX;
-
- __asm__ __volatile__ ("call *%8" : "=d"(hv_status_hi),
- "=a"(hv_status_lo) : "d" (control_hi),
- "a" (control_lo), "b" (input_address_hi),
- "c" (input_address_lo), "D"(output_address_hi),
- "S"(output_address_lo), "m" (hypercall_pg));
-
- return hv_status_lo | ((u64)hv_status_hi << 32);
-#endif /* !x86_64 */
-}
-EXPORT_SYMBOL_GPL(hv_do_hypercall);
-
void hyperv_report_panic(struct pt_regs *regs)
{
static bool panic_reported;
diff --git a/arch/x86/hyperv/mmu.c b/arch/x86/hyperv/mmu.c
new file mode 100644
index 000000000000..9cc9e1c1e2db
--- /dev/null
+++ b/arch/x86/hyperv/mmu.c
@@ -0,0 +1,301 @@
+#define pr_fmt(fmt) "Hyper-V: " fmt
+
+#include <linux/hyperv.h>
+#include <linux/log2.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#include <asm/fpu/api.h>
+#include <asm/mshyperv.h>
+#include <asm/msr.h>
+#include <asm/tlbflush.h>
+
+#define CREATE_TRACE_POINTS
+#include <asm/trace/hyperv.h>
+
+/* HvFlushVirtualAddressSpace, HvFlushVirtualAddressList hypercalls */
+struct hv_flush_pcpu {
+ u64 address_space;
+ u64 flags;
+ u64 processor_mask;
+ u64 gva_list[];
+};
+
+/* HvFlushVirtualAddressSpaceEx, HvFlushVirtualAddressListEx hypercalls */
+struct hv_flush_pcpu_ex {
+ u64 address_space;
+ u64 flags;
+ struct {
+ u64 format;
+ u64 valid_bank_mask;
+ u64 bank_contents[];
+ } hv_vp_set;
+ u64 gva_list[];
+};
+
+/* Each gva in gva_list encodes up to 4096 pages to flush */
+#define HV_TLB_FLUSH_UNIT (4096 * PAGE_SIZE)
+
+static struct hv_flush_pcpu __percpu **pcpu_flush;
+
+static struct hv_flush_pcpu_ex __percpu **pcpu_flush_ex;
+
+/*
+ * Fills in gva_list starting from offset. Returns the number of items added.
+ */
+static inline int fill_gva_list(u64 gva_list[], int offset,
+ unsigned long start, unsigned long end)
+{
+ int gva_n = offset;
+ unsigned long cur = start, diff;
+
+ do {
+ diff = end > cur ? end - cur : 0;
+
+ gva_list[gva_n] = cur & PAGE_MASK;
+ /*
+ * Lower 12 bits encode the number of additional
+ * pages to flush (in addition to the 'cur' page).
+ */
+ if (diff >= HV_TLB_FLUSH_UNIT)
+ gva_list[gva_n] |= ~PAGE_MASK;
+ else if (diff)
+ gva_list[gva_n] |= (diff - 1) >> PAGE_SHIFT;
+
+ cur += HV_TLB_FLUSH_UNIT;
+ gva_n++;
+
+ } while (cur < end);
+
+ return gva_n - offset;
+}
+
+/* Return the number of banks in the resulting vp_set */
+static inline int cpumask_to_vp_set(struct hv_flush_pcpu_ex *flush,
+ const struct cpumask *cpus)
+{
+ int cpu, vcpu, vcpu_bank, vcpu_offset, nr_bank = 1;
+
+ /* valid_bank_mask can represent up to 64 banks */
+ if (hv_max_vp_index / 64 >= 64)
+ return 0;
+
+ /*
+ * Clear all banks up to the maximum possible bank as hv_flush_pcpu_ex
+ * structs are not cleared between calls, we risk flushing unneeded
+ * vCPUs otherwise.
+ */
+ for (vcpu_bank = 0; vcpu_bank <= hv_max_vp_index / 64; vcpu_bank++)
+ flush->hv_vp_set.bank_contents[vcpu_bank] = 0;
+
+ /*
+ * Some banks may end up being empty but this is acceptable.
+ */
+ for_each_cpu(cpu, cpus) {
+ vcpu = hv_cpu_number_to_vp_number(cpu);
+ vcpu_bank = vcpu / 64;
+ vcpu_offset = vcpu % 64;
+ __set_bit(vcpu_offset, (unsigned long *)
+ &flush->hv_vp_set.bank_contents[vcpu_bank]);
+ if (vcpu_bank >= nr_bank)
+ nr_bank = vcpu_bank + 1;
+ }
+ flush->hv_vp_set.valid_bank_mask = GENMASK_ULL(nr_bank - 1, 0);
+
+ return nr_bank;
+}
+
+static void hyperv_flush_tlb_others(const struct cpumask *cpus,
+ const struct flush_tlb_info *info)
+{
+ int cpu, vcpu, gva_n, max_gvas;
+ struct hv_flush_pcpu **flush_pcpu;
+ struct hv_flush_pcpu *flush;
+ u64 status = U64_MAX;
+ unsigned long flags;
+
+ trace_hyperv_mmu_flush_tlb_others(cpus, info);
+
+ if (!pcpu_flush || !hv_hypercall_pg)
+ goto do_native;
+
+ if (cpumask_empty(cpus))
+ return;
+
+ local_irq_save(flags);
+
+ flush_pcpu = this_cpu_ptr(pcpu_flush);
+
+ if (unlikely(!*flush_pcpu))
+ *flush_pcpu = page_address(alloc_page(GFP_ATOMIC));
+
+ flush = *flush_pcpu;
+
+ if (unlikely(!flush)) {
+ local_irq_restore(flags);
+ goto do_native;
+ }
+
+ if (info->mm) {
+ flush->address_space = virt_to_phys(info->mm->pgd);
+ flush->flags = 0;
+ } else {
+ flush->address_space = 0;
+ flush->flags = HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES;
+ }
+
+ flush->processor_mask = 0;
+ if (cpumask_equal(cpus, cpu_present_mask)) {
+ flush->flags |= HV_FLUSH_ALL_PROCESSORS;
+ } else {
+ for_each_cpu(cpu, cpus) {
+ vcpu = hv_cpu_number_to_vp_number(cpu);
+ if (vcpu >= 64)
+ goto do_native;
+
+ __set_bit(vcpu, (unsigned long *)
+ &flush->processor_mask);
+ }
+ }
+
+ /*
+ * We can flush not more than max_gvas with one hypercall. Flush the
+ * whole address space if we were asked to do more.
+ */
+ max_gvas = (PAGE_SIZE - sizeof(*flush)) / sizeof(flush->gva_list[0]);
+
+ if (info->end == TLB_FLUSH_ALL) {
+ flush->flags |= HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY;
+ status = hv_do_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE,
+ flush, NULL);
+ } else if (info->end &&
+ ((info->end - info->start)/HV_TLB_FLUSH_UNIT) > max_gvas) {
+ status = hv_do_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE,
+ flush, NULL);
+ } else {
+ gva_n = fill_gva_list(flush->gva_list, 0,
+ info->start, info->end);
+ status = hv_do_rep_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST,
+ gva_n, 0, flush, NULL);
+ }
+
+ local_irq_restore(flags);
+
+ if (!(status & HV_HYPERCALL_RESULT_MASK))
+ return;
+do_native:
+ native_flush_tlb_others(cpus, info);
+}
+
+static void hyperv_flush_tlb_others_ex(const struct cpumask *cpus,
+ const struct flush_tlb_info *info)
+{
+ int nr_bank = 0, max_gvas, gva_n;
+ struct hv_flush_pcpu_ex **flush_pcpu;
+ struct hv_flush_pcpu_ex *flush;
+ u64 status = U64_MAX;
+ unsigned long flags;
+
+ trace_hyperv_mmu_flush_tlb_others(cpus, info);
+
+ if (!pcpu_flush_ex || !hv_hypercall_pg)
+ goto do_native;
+
+ if (cpumask_empty(cpus))
+ return;
+
+ local_irq_save(flags);
+
+ flush_pcpu = this_cpu_ptr(pcpu_flush_ex);
+
+ if (unlikely(!*flush_pcpu))
+ *flush_pcpu = page_address(alloc_page(GFP_ATOMIC));
+
+ flush = *flush_pcpu;
+
+ if (unlikely(!flush)) {
+ local_irq_restore(flags);
+ goto do_native;
+ }
+
+ if (info->mm) {
+ flush->address_space = virt_to_phys(info->mm->pgd);
+ flush->flags = 0;
+ } else {
+ flush->address_space = 0;
+ flush->flags = HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES;
+ }
+
+ flush->hv_vp_set.valid_bank_mask = 0;
+
+ if (!cpumask_equal(cpus, cpu_present_mask)) {
+ flush->hv_vp_set.format = HV_GENERIC_SET_SPARCE_4K;
+ nr_bank = cpumask_to_vp_set(flush, cpus);
+ }
+
+ if (!nr_bank) {
+ flush->hv_vp_set.format = HV_GENERIC_SET_ALL;
+ flush->flags |= HV_FLUSH_ALL_PROCESSORS;
+ }
+
+ /*
+ * We can flush not more than max_gvas with one hypercall. Flush the
+ * whole address space if we were asked to do more.
+ */
+ max_gvas =
+ (PAGE_SIZE - sizeof(*flush) - nr_bank *
+ sizeof(flush->hv_vp_set.bank_contents[0])) /
+ sizeof(flush->gva_list[0]);
+
+ if (info->end == TLB_FLUSH_ALL) {
+ flush->flags |= HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY;
+ status = hv_do_rep_hypercall(
+ HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX,
+ 0, nr_bank, flush, NULL);
+ } else if (info->end &&
+ ((info->end - info->start)/HV_TLB_FLUSH_UNIT) > max_gvas) {
+ status = hv_do_rep_hypercall(
+ HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX,
+ 0, nr_bank, flush, NULL);
+ } else {
+ gva_n = fill_gva_list(flush->gva_list, nr_bank,
+ info->start, info->end);
+ status = hv_do_rep_hypercall(
+ HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX,
+ gva_n, nr_bank, flush, NULL);
+ }
+
+ local_irq_restore(flags);
+
+ if (!(status & HV_HYPERCALL_RESULT_MASK))
+ return;
+do_native:
+ native_flush_tlb_others(cpus, info);
+}
+
+void hyperv_setup_mmu_ops(void)
+{
+ if (!(ms_hyperv.hints & HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED))
+ return;
+
+ setup_clear_cpu_cap(X86_FEATURE_PCID);
+
+ if (!(ms_hyperv.hints & HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED)) {
+ pr_info("Using hypercall for remote TLB flush\n");
+ pv_mmu_ops.flush_tlb_others = hyperv_flush_tlb_others;
+ } else {
+ pr_info("Using ext hypercall for remote TLB flush\n");
+ pv_mmu_ops.flush_tlb_others = hyperv_flush_tlb_others_ex;
+ }
+}
+
+void hyper_alloc_mmu(void)
+{
+ if (!(ms_hyperv.hints & HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED))
+ return;
+
+ if (!(ms_hyperv.hints & HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED))
+ pcpu_flush = alloc_percpu(struct hv_flush_pcpu *);
+ else
+ pcpu_flush_ex = alloc_percpu(struct hv_flush_pcpu_ex *);
+}
diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index 8d0879f1d42c..8e02b30cf08e 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -407,10 +407,10 @@ static int load_aout_library(struct file *file)
unsigned long bss, start_addr, len, error;
int retval;
struct exec ex;
-
+ loff_t pos = 0;
retval = -ENOEXEC;
- error = kernel_read(file, 0, (char *) &ex, sizeof(ex));
+ error = kernel_read(file, &ex, sizeof(ex), &pos);
if (error != sizeof(ex))
goto out;
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index 724153797209..0e2a5edbce00 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -226,12 +226,12 @@ static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
if (ksig->ka.sa.sa_flags & SA_ONSTACK)
sp = sigsp(sp, ksig);
/* This is the legacy signal stack switching. */
- else if ((regs->ss & 0xffff) != __USER32_DS &&
+ else if (regs->ss != __USER32_DS &&
!(ksig->ka.sa.sa_flags & SA_RESTORER) &&
ksig->ka.sa.sa_restorer)
sp = (unsigned long) ksig->ka.sa.sa_restorer;
- if (fpu->fpstate_active) {
+ if (fpu->initialized) {
unsigned long fx_aligned, math_size;
sp = fpu__alloc_mathframe(sp, 1, &fx_aligned, &math_size);
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 2efc768e4362..72d867f6b518 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -150,8 +150,6 @@ static inline void disable_acpi(void) { }
extern int x86_acpi_numa_init(void);
#endif /* CONFIG_ACPI_NUMA */
-#define acpi_unlazy_tlb(x) leave_mm(x)
-
#ifdef CONFIG_ACPI_APEI
static inline pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr)
{
@@ -162,12 +160,13 @@ static inline pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr)
* you call efi_mem_attributes() during boot and at runtime,
* you could theoretically see different attributes.
*
- * Since we are yet to see any x86 platforms that require
- * anything other than PAGE_KERNEL (some arm64 platforms
- * require the equivalent of PAGE_KERNEL_NOCACHE), return that
- * until we know differently.
+ * We are yet to see any x86 platforms that require anything
+ * other than PAGE_KERNEL (some ARM64 platforms require the
+ * equivalent of PAGE_KERNEL_NOCACHE). Additionally, if SME
+ * is active, the ACPI information will not be encrypted,
+ * so return PAGE_KERNEL_NOENC until we know differently.
*/
- return PAGE_KERNEL;
+ return PAGE_KERNEL_NOENC;
}
#endif
diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h
index e7636bac7372..6c98821fef5e 100644
--- a/arch/x86/include/asm/alternative-asm.h
+++ b/arch/x86/include/asm/alternative-asm.h
@@ -62,8 +62,10 @@
#define new_len2 145f-144f
/*
- * max without conditionals. Idea adapted from:
+ * gas compatible max based on the idea from:
* http://graphics.stanford.edu/~seander/bithacks.html#IntegerMinOrMax
+ *
+ * The additional "-" is needed because gas uses a "true" value of -1.
*/
#define alt_max_short(a, b) ((a) ^ (((a) ^ (b)) & -(-((a) < (b)))))
diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
index 1b020381ab38..ccbe24e697c4 100644
--- a/arch/x86/include/asm/alternative.h
+++ b/arch/x86/include/asm/alternative.h
@@ -103,12 +103,12 @@ static inline int alternatives_text_reserved(void *start, void *end)
alt_end_marker ":\n"
/*
- * max without conditionals. Idea adapted from:
+ * gas compatible max based on the idea from:
* http://graphics.stanford.edu/~seander/bithacks.html#IntegerMinOrMax
*
- * The additional "-" is needed because gas works with s32s.
+ * The additional "-" is needed because gas uses a "true" value of -1.
*/
-#define alt_max_short(a, b) "((" a ") ^ (((" a ") ^ (" b ")) & -(-((" a ") - (" b ")))))"
+#define alt_max_short(a, b) "((" a ") ^ (((" a ") ^ (" b ")) & -(-((" a ") < (" b ")))))"
/*
* Pad the second replacement alternative with additional NOPs if it is
@@ -218,10 +218,9 @@ static inline int alternatives_text_reserved(void *start, void *end)
#define alternative_call_2(oldfunc, newfunc1, feature1, newfunc2, feature2, \
output, input...) \
{ \
- register void *__sp asm(_ASM_SP); \
asm volatile (ALTERNATIVE_2("call %P[old]", "call %P[new1]", feature1,\
"call %P[new2]", feature2) \
- : output, "+r" (__sp) \
+ : output, ASM_CALL_CONSTRAINT \
: [old] "i" (oldfunc), [new1] "i" (newfunc1), \
[new2] "i" (newfunc2), ## input); \
}
diff --git a/arch/x86/include/asm/amd_nb.h b/arch/x86/include/asm/amd_nb.h
index 00c88a01301d..da181ad1d5f8 100644
--- a/arch/x86/include/asm/amd_nb.h
+++ b/arch/x86/include/asm/amd_nb.h
@@ -3,6 +3,7 @@
#include <linux/ioport.h>
#include <linux/pci.h>
+#include <linux/refcount.h>
struct amd_nb_bus_dev_range {
u8 bus;
@@ -55,7 +56,7 @@ struct threshold_bank {
struct threshold_block *blocks;
/* initialized to the number of CPUs on the node sharing this bank */
- atomic_t cpus;
+ refcount_t cpus;
};
struct amd_northbridge {
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index bdffcd9eab2b..5f01671c68f2 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -252,6 +252,8 @@ static inline int x2apic_enabled(void) { return 0; }
#define x2apic_supported() (0)
#endif /* !CONFIG_X86_X2APIC */
+struct irq_data;
+
/*
* Copyright 2004 James Cleverdon, IBM.
* Subject to the GNU Public License, v.2
@@ -296,9 +298,9 @@ struct apic {
/* Can't be NULL on 64-bit */
unsigned long (*set_apic_id)(unsigned int id);
- int (*cpu_mask_to_apicid_and)(const struct cpumask *cpumask,
- const struct cpumask *andmask,
- unsigned int *apicid);
+ int (*cpu_mask_to_apicid)(const struct cpumask *cpumask,
+ struct irq_data *irqdata,
+ unsigned int *apicid);
/* ipi */
void (*send_IPI)(int cpu, int vector);
@@ -540,28 +542,12 @@ static inline int default_phys_pkg_id(int cpuid_apic, int index_msb)
#endif
-static inline int
-flat_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
- const struct cpumask *andmask,
- unsigned int *apicid)
-{
- unsigned long cpu_mask = cpumask_bits(cpumask)[0] &
- cpumask_bits(andmask)[0] &
- cpumask_bits(cpu_online_mask)[0] &
- APIC_ALL_CPUS;
-
- if (likely(cpu_mask)) {
- *apicid = (unsigned int)cpu_mask;
- return 0;
- } else {
- return -EINVAL;
- }
-}
-
-extern int
-default_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
- const struct cpumask *andmask,
- unsigned int *apicid);
+extern int flat_cpu_mask_to_apicid(const struct cpumask *cpumask,
+ struct irq_data *irqdata,
+ unsigned int *apicid);
+extern int default_cpu_mask_to_apicid(const struct cpumask *cpumask,
+ struct irq_data *irqdata,
+ unsigned int *apicid);
static inline void
flat_vector_allocation_domain(int cpu, struct cpumask *retmask,
diff --git a/arch/x86/include/asm/asm.h b/arch/x86/include/asm/asm.h
index 7a9df3beb89b..b0dc91f4bedc 100644
--- a/arch/x86/include/asm/asm.h
+++ b/arch/x86/include/asm/asm.h
@@ -11,10 +11,12 @@
# define __ASM_FORM_COMMA(x) " " #x ","
#endif
-#ifdef CONFIG_X86_32
+#ifndef __x86_64__
+/* 32 bit */
# define __ASM_SEL(a,b) __ASM_FORM(a)
# define __ASM_SEL_RAW(a,b) __ASM_FORM_RAW(a)
#else
+/* 64 bit */
# define __ASM_SEL(a,b) __ASM_FORM(b)
# define __ASM_SEL_RAW(a,b) __ASM_FORM_RAW(b)
#endif
@@ -74,6 +76,9 @@
# define _ASM_EXTABLE_EX(from, to) \
_ASM_EXTABLE_HANDLE(from, to, ex_handler_ext)
+# define _ASM_EXTABLE_REFCOUNT(from, to) \
+ _ASM_EXTABLE_HANDLE(from, to, ex_handler_refcount)
+
# define _ASM_NOKPROBE(entry) \
.pushsection "_kprobe_blacklist","aw" ; \
_ASM_ALIGN ; \
@@ -123,7 +128,21 @@
# define _ASM_EXTABLE_EX(from, to) \
_ASM_EXTABLE_HANDLE(from, to, ex_handler_ext)
+# define _ASM_EXTABLE_REFCOUNT(from, to) \
+ _ASM_EXTABLE_HANDLE(from, to, ex_handler_refcount)
+
/* For C file, we already have NOKPROBE_SYMBOL macro */
#endif
+#ifndef __ASSEMBLY__
+/*
+ * This output constraint should be used for any inline asm which has a "call"
+ * instruction. Otherwise the asm may be inserted before the frame pointer
+ * gets set up by the containing function. If you forget to do this, objtool
+ * may print a "call without frame pointer save/setup" warning.
+ */
+register unsigned long current_stack_pointer asm(_ASM_SP);
+#define ASM_CALL_CONSTRAINT "+r" (current_stack_pointer)
+#endif
+
#endif /* _ASM_X86_ASM_H */
diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h
index caa5798c92f4..0874ebda3069 100644
--- a/arch/x86/include/asm/atomic.h
+++ b/arch/x86/include/asm/atomic.h
@@ -197,35 +197,56 @@ static inline int atomic_xchg(atomic_t *v, int new)
return xchg(&v->counter, new);
}
-#define ATOMIC_OP(op) \
-static inline void atomic_##op(int i, atomic_t *v) \
-{ \
- asm volatile(LOCK_PREFIX #op"l %1,%0" \
- : "+m" (v->counter) \
- : "ir" (i) \
- : "memory"); \
+static inline void atomic_and(int i, atomic_t *v)
+{
+ asm volatile(LOCK_PREFIX "andl %1,%0"
+ : "+m" (v->counter)
+ : "ir" (i)
+ : "memory");
}
-#define ATOMIC_FETCH_OP(op, c_op) \
-static inline int atomic_fetch_##op(int i, atomic_t *v) \
-{ \
- int val = atomic_read(v); \
- do { \
- } while (!atomic_try_cmpxchg(v, &val, val c_op i)); \
- return val; \
+static inline int atomic_fetch_and(int i, atomic_t *v)
+{
+ int val = atomic_read(v);
+
+ do { } while (!atomic_try_cmpxchg(v, &val, val & i));
+
+ return val;
}
-#define ATOMIC_OPS(op, c_op) \
- ATOMIC_OP(op) \
- ATOMIC_FETCH_OP(op, c_op)
+static inline void atomic_or(int i, atomic_t *v)
+{
+ asm volatile(LOCK_PREFIX "orl %1,%0"
+ : "+m" (v->counter)
+ : "ir" (i)
+ : "memory");
+}
-ATOMIC_OPS(and, &)
-ATOMIC_OPS(or , |)
-ATOMIC_OPS(xor, ^)
+static inline int atomic_fetch_or(int i, atomic_t *v)
+{
+ int val = atomic_read(v);
-#undef ATOMIC_OPS
-#undef ATOMIC_FETCH_OP
-#undef ATOMIC_OP
+ do { } while (!atomic_try_cmpxchg(v, &val, val | i));
+
+ return val;
+}
+
+static inline void atomic_xor(int i, atomic_t *v)
+{
+ asm volatile(LOCK_PREFIX "xorl %1,%0"
+ : "+m" (v->counter)
+ : "ir" (i)
+ : "memory");
+}
+
+static inline int atomic_fetch_xor(int i, atomic_t *v)
+{
+ int val = atomic_read(v);
+
+ do { } while (!atomic_try_cmpxchg(v, &val, val ^ i));
+
+ return val;
+}
/**
* __atomic_add_unless - add unless the number is already a given value
@@ -239,24 +260,13 @@ ATOMIC_OPS(xor, ^)
static __always_inline int __atomic_add_unless(atomic_t *v, int a, int u)
{
int c = atomic_read(v);
+
do {
if (unlikely(c == u))
break;
} while (!atomic_try_cmpxchg(v, &c, c + a));
- return c;
-}
-/**
- * atomic_inc_short - increment of a short integer
- * @v: pointer to type int
- *
- * Atomically adds 1 to @v
- * Returns the new value of @u
- */
-static __always_inline short int atomic_inc_short(short int *v)
-{
- asm(LOCK_PREFIX "addw $1, %0" : "+m" (*v));
- return *v;
+ return c;
}
#ifdef CONFIG_X86_32
diff --git a/arch/x86/include/asm/atomic64_32.h b/arch/x86/include/asm/atomic64_32.h
index 71d7705fb303..9e206f31ce2a 100644
--- a/arch/x86/include/asm/atomic64_32.h
+++ b/arch/x86/include/asm/atomic64_32.h
@@ -312,37 +312,70 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v)
#undef alternative_atomic64
#undef __alternative_atomic64
-#define ATOMIC64_OP(op, c_op) \
-static inline void atomic64_##op(long long i, atomic64_t *v) \
-{ \
- long long old, c = 0; \
- while ((old = atomic64_cmpxchg(v, c, c c_op i)) != c) \
- c = old; \
+static inline void atomic64_and(long long i, atomic64_t *v)
+{
+ long long old, c = 0;
+
+ while ((old = atomic64_cmpxchg(v, c, c & i)) != c)
+ c = old;
}
-#define ATOMIC64_FETCH_OP(op, c_op) \
-static inline long long atomic64_fetch_##op(long long i, atomic64_t *v) \
-{ \
- long long old, c = 0; \
- while ((old = atomic64_cmpxchg(v, c, c c_op i)) != c) \
- c = old; \
- return old; \
+static inline long long atomic64_fetch_and(long long i, atomic64_t *v)
+{
+ long long old, c = 0;
+
+ while ((old = atomic64_cmpxchg(v, c, c & i)) != c)
+ c = old;
+
+ return old;
}
-ATOMIC64_FETCH_OP(add, +)
+static inline void atomic64_or(long long i, atomic64_t *v)
+{
+ long long old, c = 0;
-#define atomic64_fetch_sub(i, v) atomic64_fetch_add(-(i), (v))
+ while ((old = atomic64_cmpxchg(v, c, c | i)) != c)
+ c = old;
+}
+
+static inline long long atomic64_fetch_or(long long i, atomic64_t *v)
+{
+ long long old, c = 0;
+
+ while ((old = atomic64_cmpxchg(v, c, c | i)) != c)
+ c = old;
+
+ return old;
+}
-#define ATOMIC64_OPS(op, c_op) \
- ATOMIC64_OP(op, c_op) \
- ATOMIC64_FETCH_OP(op, c_op)
+static inline void atomic64_xor(long long i, atomic64_t *v)
+{
+ long long old, c = 0;
+
+ while ((old = atomic64_cmpxchg(v, c, c ^ i)) != c)
+ c = old;
+}
-ATOMIC64_OPS(and, &)
-ATOMIC64_OPS(or, |)
-ATOMIC64_OPS(xor, ^)
+static inline long long atomic64_fetch_xor(long long i, atomic64_t *v)
+{
+ long long old, c = 0;
+
+ while ((old = atomic64_cmpxchg(v, c, c ^ i)) != c)
+ c = old;
+
+ return old;
+}
-#undef ATOMIC64_OPS
-#undef ATOMIC64_FETCH_OP
-#undef ATOMIC64_OP
+static inline long long atomic64_fetch_add(long long i, atomic64_t *v)
+{
+ long long old, c = 0;
+
+ while ((old = atomic64_cmpxchg(v, c, c + i)) != c)
+ c = old;
+
+ return old;
+}
+
+#define atomic64_fetch_sub(i, v) atomic64_fetch_add(-(i), (v))
#endif /* _ASM_X86_ATOMIC64_32_H */
diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
index 6189a433c9a9..5d9de36a2f04 100644
--- a/arch/x86/include/asm/atomic64_64.h
+++ b/arch/x86/include/asm/atomic64_64.h
@@ -177,7 +177,7 @@ static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
}
#define atomic64_try_cmpxchg atomic64_try_cmpxchg
-static __always_inline bool atomic64_try_cmpxchg(atomic64_t *v, long *old, long new)
+static __always_inline bool atomic64_try_cmpxchg(atomic64_t *v, s64 *old, long new)
{
return try_cmpxchg(&v->counter, old, new);
}
@@ -198,7 +198,7 @@ static inline long atomic64_xchg(atomic64_t *v, long new)
*/
static inline bool atomic64_add_unless(atomic64_t *v, long a, long u)
{
- long c = atomic64_read(v);
+ s64 c = atomic64_read(v);
do {
if (unlikely(c == u))
return false;
@@ -217,7 +217,7 @@ static inline bool atomic64_add_unless(atomic64_t *v, long a, long u)
*/
static inline long atomic64_dec_if_positive(atomic64_t *v)
{
- long dec, c = atomic64_read(v);
+ s64 dec, c = atomic64_read(v);
do {
dec = c - 1;
if (unlikely(dec < 0))
@@ -226,34 +226,55 @@ static inline long atomic64_dec_if_positive(atomic64_t *v)
return dec;
}
-#define ATOMIC64_OP(op) \
-static inline void atomic64_##op(long i, atomic64_t *v) \
-{ \
- asm volatile(LOCK_PREFIX #op"q %1,%0" \
- : "+m" (v->counter) \
- : "er" (i) \
- : "memory"); \
+static inline void atomic64_and(long i, atomic64_t *v)
+{
+ asm volatile(LOCK_PREFIX "andq %1,%0"
+ : "+m" (v->counter)
+ : "er" (i)
+ : "memory");
}
-#define ATOMIC64_FETCH_OP(op, c_op) \
-static inline long atomic64_fetch_##op(long i, atomic64_t *v) \
-{ \
- long val = atomic64_read(v); \
- do { \
- } while (!atomic64_try_cmpxchg(v, &val, val c_op i)); \
- return val; \
+static inline long atomic64_fetch_and(long i, atomic64_t *v)
+{
+ s64 val = atomic64_read(v);
+
+ do {
+ } while (!atomic64_try_cmpxchg(v, &val, val & i));
+ return val;
}
-#define ATOMIC64_OPS(op, c_op) \
- ATOMIC64_OP(op) \
- ATOMIC64_FETCH_OP(op, c_op)
+static inline void atomic64_or(long i, atomic64_t *v)
+{
+ asm volatile(LOCK_PREFIX "orq %1,%0"
+ : "+m" (v->counter)
+ : "er" (i)
+ : "memory");
+}
-ATOMIC64_OPS(and, &)
-ATOMIC64_OPS(or, |)
-ATOMIC64_OPS(xor, ^)
+static inline long atomic64_fetch_or(long i, atomic64_t *v)
+{
+ s64 val = atomic64_read(v);
-#undef ATOMIC64_OPS
-#undef ATOMIC64_FETCH_OP
-#undef ATOMIC64_OP
+ do {
+ } while (!atomic64_try_cmpxchg(v, &val, val | i));
+ return val;
+}
+
+static inline void atomic64_xor(long i, atomic64_t *v)
+{
+ asm volatile(LOCK_PREFIX "xorq %1,%0"
+ : "+m" (v->counter)
+ : "er" (i)
+ : "memory");
+}
+
+static inline long atomic64_fetch_xor(long i, atomic64_t *v)
+{
+ s64 val = atomic64_read(v);
+
+ do {
+ } while (!atomic64_try_cmpxchg(v, &val, val ^ i));
+ return val;
+}
#endif /* _ASM_X86_ATOMIC64_64_H */
diff --git a/arch/x86/include/asm/bug.h b/arch/x86/include/asm/bug.h
index 39e702d90cdb..aa6b2023d8f8 100644
--- a/arch/x86/include/asm/bug.h
+++ b/arch/x86/include/asm/bug.h
@@ -35,7 +35,7 @@
#define _BUG_FLAGS(ins, flags) \
do { \
asm volatile("1:\t" ins "\n" \
- ".pushsection __bug_table,\"a\"\n" \
+ ".pushsection __bug_table,\"aw\"\n" \
"2:\t" __BUG_REL(1b) "\t# bug_entry::bug_addr\n" \
"\t" __BUG_REL(%c0) "\t# bug_entry::file\n" \
"\t.word %c1" "\t# bug_entry::line\n" \
@@ -52,7 +52,7 @@ do { \
#define _BUG_FLAGS(ins, flags) \
do { \
asm volatile("1:\t" ins "\n" \
- ".pushsection __bug_table,\"a\"\n" \
+ ".pushsection __bug_table,\"aw\"\n" \
"2:\t" __BUG_REL(1b) "\t# bug_entry::bug_addr\n" \
"\t.word %c0" "\t# bug_entry::flags\n" \
"\t.org 2b+%c1\n" \
diff --git a/arch/x86/include/asm/cacheflush.h b/arch/x86/include/asm/cacheflush.h
index 8b4140f6724f..cb9a1af109b4 100644
--- a/arch/x86/include/asm/cacheflush.h
+++ b/arch/x86/include/asm/cacheflush.h
@@ -7,6 +7,4 @@
void clflush_cache_range(void *addr, unsigned int size);
-#define mmio_flush_range(addr, size) clflush_cache_range(addr, size)
-
#endif /* _ASM_X86_CACHEFLUSH_H */
diff --git a/arch/x86/include/asm/cmdline.h b/arch/x86/include/asm/cmdline.h
index e01f7f7ccb0c..84ae170bc3d0 100644
--- a/arch/x86/include/asm/cmdline.h
+++ b/arch/x86/include/asm/cmdline.h
@@ -2,5 +2,7 @@
#define _ASM_X86_CMDLINE_H
int cmdline_find_option_bool(const char *cmdline_ptr, const char *option);
+int cmdline_find_option(const char *cmdline_ptr, const char *option,
+ char *buffer, int bufsize);
#endif /* _ASM_X86_CMDLINE_H */
diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h
index d90296d061e8..b5069e802d5c 100644
--- a/arch/x86/include/asm/cmpxchg.h
+++ b/arch/x86/include/asm/cmpxchg.h
@@ -157,7 +157,7 @@ extern void __add_wrong_size(void)
#define __raw_try_cmpxchg(_ptr, _pold, _new, size, lock) \
({ \
bool success; \
- __typeof__(_ptr) _old = (_pold); \
+ __typeof__(_ptr) _old = (__typeof__(_ptr))(_pold); \
__typeof__(*(_ptr)) __old = *_old; \
__typeof__(*(_ptr)) __new = (_new); \
switch (size) { \
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index 24118c0b4640..5343c19814b3 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -116,7 +116,6 @@ struct compat_statfs {
int f_spare[4];
};
-#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
#define COMPAT_RLIM_INFINITY 0xffffffff
typedef u32 compat_old_sigset_t; /* at least 32 bits */
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index 2701e5f8145b..2519c6c801c9 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -177,7 +177,7 @@
#define X86_FEATURE_PERFCTR_NB ( 6*32+24) /* NB performance counter extensions */
#define X86_FEATURE_BPEXT (6*32+26) /* data breakpoint extension */
#define X86_FEATURE_PTSC ( 6*32+27) /* performance time-stamp counter */
-#define X86_FEATURE_PERFCTR_L2 ( 6*32+28) /* L2 performance counter extensions */
+#define X86_FEATURE_PERFCTR_LLC ( 6*32+28) /* Last Level Cache performance counter extensions */
#define X86_FEATURE_MWAITX ( 6*32+29) /* MWAIT extension (MONITORX/MWAITX) */
/*
@@ -196,6 +196,7 @@
#define X86_FEATURE_HW_PSTATE ( 7*32+ 8) /* AMD HW-PState */
#define X86_FEATURE_PROC_FEEDBACK ( 7*32+ 9) /* AMD ProcFeedbackInterface */
+#define X86_FEATURE_SME ( 7*32+10) /* AMD Secure Memory Encryption */
#define X86_FEATURE_INTEL_PPIN ( 7*32+14) /* Intel Processor Inventory Number */
#define X86_FEATURE_INTEL_PT ( 7*32+15) /* Intel Processor Trace */
@@ -286,6 +287,8 @@
#define X86_FEATURE_PAUSEFILTER (15*32+10) /* filtered pause intercept */
#define X86_FEATURE_PFTHRESHOLD (15*32+12) /* pause filter threshold */
#define X86_FEATURE_AVIC (15*32+13) /* Virtual Interrupt Controller */
+#define X86_FEATURE_V_VMSAVE_VMLOAD (15*32+15) /* Virtual VMSAVE VMLOAD */
+#define X86_FEATURE_VGIF (15*32+16) /* Virtual GIF */
/* Intel-defined CPU features, CPUID level 0x00000007:0 (ecx), word 16 */
#define X86_FEATURE_AVX512VBMI (16*32+ 1) /* AVX512 Vector Bit Manipulation instructions*/
diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
index d0a21b12dd58..9d0e13738ed3 100644
--- a/arch/x86/include/asm/desc.h
+++ b/arch/x86/include/asm/desc.h
@@ -5,6 +5,7 @@
#include <asm/ldt.h>
#include <asm/mmu.h>
#include <asm/fixmap.h>
+#include <asm/irq_vectors.h>
#include <linux/smp.h>
#include <linux/percpu.h>
@@ -22,7 +23,7 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in
desc->s = 1;
desc->dpl = 0x3;
desc->p = info->seg_not_present ^ 1;
- desc->limit = (info->limit & 0xf0000) >> 16;
+ desc->limit1 = (info->limit & 0xf0000) >> 16;
desc->avl = info->useable;
desc->d = info->seg_32bit;
desc->g = info->limit_in_pages;
@@ -83,33 +84,25 @@ static inline phys_addr_t get_cpu_gdt_paddr(unsigned int cpu)
return per_cpu_ptr_to_phys(get_cpu_gdt_rw(cpu));
}
-#ifdef CONFIG_X86_64
-
static inline void pack_gate(gate_desc *gate, unsigned type, unsigned long func,
unsigned dpl, unsigned ist, unsigned seg)
{
- gate->offset_low = PTR_LOW(func);
+ gate->offset_low = (u16) func;
+ gate->bits.p = 1;
+ gate->bits.dpl = dpl;
+ gate->bits.zero = 0;
+ gate->bits.type = type;
+ gate->offset_middle = (u16) (func >> 16);
+#ifdef CONFIG_X86_64
gate->segment = __KERNEL_CS;
- gate->ist = ist;
- gate->p = 1;
- gate->dpl = dpl;
- gate->zero0 = 0;
- gate->zero1 = 0;
- gate->type = type;
- gate->offset_middle = PTR_MIDDLE(func);
- gate->offset_high = PTR_HIGH(func);
-}
-
+ gate->bits.ist = ist;
+ gate->reserved = 0;
+ gate->offset_high = (u32) (func >> 32);
#else
-static inline void pack_gate(gate_desc *gate, unsigned char type,
- unsigned long base, unsigned dpl, unsigned flags,
- unsigned short seg)
-{
- gate->a = (seg << 16) | (base & 0xffff);
- gate->b = (base & 0xffff0000) | (((0x80 | type | (dpl << 5)) & 0xff) << 8);
-}
-
+ gate->segment = seg;
+ gate->bits.ist = 0;
#endif
+}
static inline int desc_empty(const void *ptr)
{
@@ -128,7 +121,6 @@ static inline int desc_empty(const void *ptr)
#define load_ldt(ldt) asm volatile("lldt %0"::"m" (ldt))
#define store_gdt(dtr) native_store_gdt(dtr)
-#define store_idt(dtr) native_store_idt(dtr)
#define store_tr(tr) (tr = native_store_tr())
#define load_TLS(t, cpu) native_load_tls(t, cpu)
@@ -173,35 +165,22 @@ native_write_gdt_entry(struct desc_struct *gdt, int entry, const void *desc, int
memcpy(&gdt[entry], desc, size);
}
-static inline void pack_descriptor(struct desc_struct *desc, unsigned long base,
- unsigned long limit, unsigned char type,
- unsigned char flags)
-{
- desc->a = ((base & 0xffff) << 16) | (limit & 0xffff);
- desc->b = (base & 0xff000000) | ((base & 0xff0000) >> 16) |
- (limit & 0x000f0000) | ((type & 0xff) << 8) |
- ((flags & 0xf) << 20);
- desc->p = 1;
-}
-
-
-static inline void set_tssldt_descriptor(void *d, unsigned long addr, unsigned type, unsigned size)
+static inline void set_tssldt_descriptor(void *d, unsigned long addr,
+ unsigned type, unsigned size)
{
-#ifdef CONFIG_X86_64
- struct ldttss_desc64 *desc = d;
+ struct ldttss_desc *desc = d;
memset(desc, 0, sizeof(*desc));
- desc->limit0 = size & 0xFFFF;
- desc->base0 = PTR_LOW(addr);
- desc->base1 = PTR_MIDDLE(addr) & 0xFF;
+ desc->limit0 = (u16) size;
+ desc->base0 = (u16) addr;
+ desc->base1 = (addr >> 16) & 0xFF;
desc->type = type;
desc->p = 1;
desc->limit1 = (size >> 16) & 0xF;
- desc->base2 = (PTR_MIDDLE(addr) >> 8) & 0xFF;
- desc->base3 = PTR_HIGH(addr);
-#else
- pack_descriptor((struct desc_struct *)d, addr, size, 0x80 | type, 0);
+ desc->base2 = (addr >> 24) & 0xFF;
+#ifdef CONFIG_X86_64
+ desc->base3 = (u32) (addr >> 32);
#endif
}
@@ -248,7 +227,7 @@ static inline void native_store_gdt(struct desc_ptr *dtr)
asm volatile("sgdt %0":"=m" (*dtr));
}
-static inline void native_store_idt(struct desc_ptr *dtr)
+static inline void store_idt(struct desc_ptr *dtr)
{
asm volatile("sidt %0":"=m" (*dtr));
}
@@ -401,147 +380,20 @@ static inline void set_desc_base(struct desc_struct *desc, unsigned long base)
static inline unsigned long get_desc_limit(const struct desc_struct *desc)
{
- return desc->limit0 | (desc->limit << 16);
+ return desc->limit0 | (desc->limit1 << 16);
}
static inline void set_desc_limit(struct desc_struct *desc, unsigned long limit)
{
desc->limit0 = limit & 0xffff;
- desc->limit = (limit >> 16) & 0xf;
-}
-
-#ifdef CONFIG_X86_64
-static inline void set_nmi_gate(int gate, void *addr)
-{
- gate_desc s;
-
- pack_gate(&s, GATE_INTERRUPT, (unsigned long)addr, 0, 0, __KERNEL_CS);
- write_idt_entry(debug_idt_table, gate, &s);
+ desc->limit1 = (limit >> 16) & 0xf;
}
-#endif
-#ifdef CONFIG_TRACING
-extern struct desc_ptr trace_idt_descr;
-extern gate_desc trace_idt_table[];
-static inline void write_trace_idt_entry(int entry, const gate_desc *gate)
-{
- write_idt_entry(trace_idt_table, entry, gate);
-}
+void update_intr_gate(unsigned int n, const void *addr);
+void alloc_intr_gate(unsigned int n, const void *addr);
-static inline void _trace_set_gate(int gate, unsigned type, void *addr,
- unsigned dpl, unsigned ist, unsigned seg)
-{
- gate_desc s;
-
- pack_gate(&s, type, (unsigned long)addr, dpl, ist, seg);
- /*
- * does not need to be atomic because it is only done once at
- * setup time
- */
- write_trace_idt_entry(gate, &s);
-}
-#else
-static inline void write_trace_idt_entry(int entry, const gate_desc *gate)
-{
-}
-
-#define _trace_set_gate(gate, type, addr, dpl, ist, seg)
-#endif
-
-static inline void _set_gate(int gate, unsigned type, void *addr,
- unsigned dpl, unsigned ist, unsigned seg)
-{
- gate_desc s;
-
- pack_gate(&s, type, (unsigned long)addr, dpl, ist, seg);
- /*
- * does not need to be atomic because it is only done once at
- * setup time
- */
- write_idt_entry(idt_table, gate, &s);
- write_trace_idt_entry(gate, &s);
-}
-
-/*
- * This needs to use 'idt_table' rather than 'idt', and
- * thus use the _nonmapped_ version of the IDT, as the
- * Pentium F0 0F bugfix can have resulted in the mapped
- * IDT being write-protected.
- */
-#define set_intr_gate_notrace(n, addr) \
- do { \
- BUG_ON((unsigned)n > 0xFF); \
- _set_gate(n, GATE_INTERRUPT, (void *)addr, 0, 0, \
- __KERNEL_CS); \
- } while (0)
-
-#define set_intr_gate(n, addr) \
- do { \
- set_intr_gate_notrace(n, addr); \
- _trace_set_gate(n, GATE_INTERRUPT, (void *)trace_##addr,\
- 0, 0, __KERNEL_CS); \
- } while (0)
-
-extern int first_system_vector;
-/* used_vectors is BITMAP for irq is not managed by percpu vector_irq */
extern unsigned long used_vectors[];
-static inline void alloc_system_vector(int vector)
-{
- if (!test_bit(vector, used_vectors)) {
- set_bit(vector, used_vectors);
- if (first_system_vector > vector)
- first_system_vector = vector;
- } else {
- BUG();
- }
-}
-
-#define alloc_intr_gate(n, addr) \
- do { \
- alloc_system_vector(n); \
- set_intr_gate(n, addr); \
- } while (0)
-
-/*
- * This routine sets up an interrupt gate at directory privilege level 3.
- */
-static inline void set_system_intr_gate(unsigned int n, void *addr)
-{
- BUG_ON((unsigned)n > 0xFF);
- _set_gate(n, GATE_INTERRUPT, addr, 0x3, 0, __KERNEL_CS);
-}
-
-static inline void set_system_trap_gate(unsigned int n, void *addr)
-{
- BUG_ON((unsigned)n > 0xFF);
- _set_gate(n, GATE_TRAP, addr, 0x3, 0, __KERNEL_CS);
-}
-
-static inline void set_trap_gate(unsigned int n, void *addr)
-{
- BUG_ON((unsigned)n > 0xFF);
- _set_gate(n, GATE_TRAP, addr, 0, 0, __KERNEL_CS);
-}
-
-static inline void set_task_gate(unsigned int n, unsigned int gdt_entry)
-{
- BUG_ON((unsigned)n > 0xFF);
- _set_gate(n, GATE_TASK, (void *)0, 0, 0, (gdt_entry<<3));
-}
-
-static inline void set_intr_gate_ist(int n, void *addr, unsigned ist)
-{
- BUG_ON((unsigned)n > 0xFF);
- _set_gate(n, GATE_INTERRUPT, addr, 0, ist, __KERNEL_CS);
-}
-
-static inline void set_system_intr_gate_ist(int n, void *addr, unsigned ist)
-{
- BUG_ON((unsigned)n > 0xFF);
- _set_gate(n, GATE_INTERRUPT, addr, 0x3, ist, __KERNEL_CS);
-}
-
#ifdef CONFIG_X86_64
DECLARE_PER_CPU(u32, debug_idt_ctr);
static inline bool is_debug_idt_enabled(void)
@@ -567,31 +419,6 @@ static inline void load_debug_idt(void)
}
#endif
-#ifdef CONFIG_TRACING
-extern atomic_t trace_idt_ctr;
-static inline bool is_trace_idt_enabled(void)
-{
- if (atomic_read(&trace_idt_ctr))
- return true;
-
- return false;
-}
-
-static inline void load_trace_idt(void)
-{
- load_idt((const struct desc_ptr *)&trace_idt_descr);
-}
-#else
-static inline bool is_trace_idt_enabled(void)
-{
- return false;
-}
-
-static inline void load_trace_idt(void)
-{
-}
-#endif
-
/*
* The load_current_idt() must be called with interrupts disabled
* to avoid races. That way the IDT will always be set back to the expected
@@ -603,9 +430,25 @@ static inline void load_current_idt(void)
{
if (is_debug_idt_enabled())
load_debug_idt();
- else if (is_trace_idt_enabled())
- load_trace_idt();
else
load_idt((const struct desc_ptr *)&idt_descr);
}
+
+extern void idt_setup_early_handler(void);
+extern void idt_setup_early_traps(void);
+extern void idt_setup_traps(void);
+extern void idt_setup_apic_and_irq_gates(void);
+
+#ifdef CONFIG_X86_64
+extern void idt_setup_early_pf(void);
+extern void idt_setup_ist_traps(void);
+extern void idt_setup_debugidt_traps(void);
+#else
+static inline void idt_setup_early_pf(void) { }
+static inline void idt_setup_ist_traps(void) { }
+static inline void idt_setup_debugidt_traps(void) { }
+#endif
+
+extern void idt_invalidate(void *addr);
+
#endif /* _ASM_X86_DESC_H */
diff --git a/arch/x86/include/asm/desc_defs.h b/arch/x86/include/asm/desc_defs.h
index 49265345d4d2..346d252029b7 100644
--- a/arch/x86/include/asm/desc_defs.h
+++ b/arch/x86/include/asm/desc_defs.h
@@ -11,34 +11,30 @@
#include <linux/types.h>
-/*
- * FIXME: Accessing the desc_struct through its fields is more elegant,
- * and should be the one valid thing to do. However, a lot of open code
- * still touches the a and b accessors, and doing this allow us to do it
- * incrementally. We keep the signature as a struct, rather than a union,
- * so we can get rid of it transparently in the future -- glommer
- */
/* 8 byte segment descriptor */
struct desc_struct {
- union {
- struct {
- unsigned int a;
- unsigned int b;
- };
- struct {
- u16 limit0;
- u16 base0;
- unsigned base1: 8, type: 4, s: 1, dpl: 2, p: 1;
- unsigned limit: 4, avl: 1, l: 1, d: 1, g: 1, base2: 8;
- };
- };
+ u16 limit0;
+ u16 base0;
+ u16 base1: 8, type: 4, s: 1, dpl: 2, p: 1;
+ u16 limit1: 4, avl: 1, l: 1, d: 1, g: 1, base2: 8;
} __attribute__((packed));
-#define GDT_ENTRY_INIT(flags, base, limit) { { { \
- .a = ((limit) & 0xffff) | (((base) & 0xffff) << 16), \
- .b = (((base) & 0xff0000) >> 16) | (((flags) & 0xf0ff) << 8) | \
- ((limit) & 0xf0000) | ((base) & 0xff000000), \
- } } }
+#define GDT_ENTRY_INIT(flags, base, limit) \
+ { \
+ .limit0 = (u16) (limit), \
+ .limit1 = ((limit) >> 16) & 0x0F, \
+ .base0 = (u16) (base), \
+ .base1 = ((base) >> 16) & 0xFF, \
+ .base2 = ((base) >> 24) & 0xFF, \
+ .type = (flags & 0x0f), \
+ .s = (flags >> 4) & 0x01, \
+ .dpl = (flags >> 5) & 0x03, \
+ .p = (flags >> 7) & 0x01, \
+ .avl = (flags >> 12) & 0x01, \
+ .l = (flags >> 13) & 0x01, \
+ .d = (flags >> 14) & 0x01, \
+ .g = (flags >> 15) & 0x01, \
+ }
enum {
GATE_INTERRUPT = 0xE,
@@ -47,49 +43,63 @@ enum {
GATE_TASK = 0x5,
};
-/* 16byte gate */
-struct gate_struct64 {
- u16 offset_low;
- u16 segment;
- unsigned ist : 3, zero0 : 5, type : 5, dpl : 2, p : 1;
- u16 offset_middle;
- u32 offset_high;
- u32 zero1;
-} __attribute__((packed));
-
-#define PTR_LOW(x) ((unsigned long long)(x) & 0xFFFF)
-#define PTR_MIDDLE(x) (((unsigned long long)(x) >> 16) & 0xFFFF)
-#define PTR_HIGH(x) ((unsigned long long)(x) >> 32)
-
enum {
DESC_TSS = 0x9,
DESC_LDT = 0x2,
DESCTYPE_S = 0x10, /* !system */
};
-/* LDT or TSS descriptor in the GDT. 16 bytes. */
-struct ldttss_desc64 {
- u16 limit0;
- u16 base0;
- unsigned base1 : 8, type : 5, dpl : 2, p : 1;
- unsigned limit1 : 4, zero0 : 3, g : 1, base2 : 8;
- u32 base3;
- u32 zero1;
+/* LDT or TSS descriptor in the GDT. */
+struct ldttss_desc {
+ u16 limit0;
+ u16 base0;
+
+ u16 base1 : 8, type : 5, dpl : 2, p : 1;
+ u16 limit1 : 4, zero0 : 3, g : 1, base2 : 8;
+#ifdef CONFIG_X86_64
+ u32 base3;
+ u32 zero1;
+#endif
} __attribute__((packed));
+typedef struct ldttss_desc ldt_desc;
+typedef struct ldttss_desc tss_desc;
+
+struct idt_bits {
+ u16 ist : 3,
+ zero : 5,
+ type : 5,
+ dpl : 2,
+ p : 1;
+} __attribute__((packed));
+
+struct gate_struct {
+ u16 offset_low;
+ u16 segment;
+ struct idt_bits bits;
+ u16 offset_middle;
+#ifdef CONFIG_X86_64
+ u32 offset_high;
+ u32 reserved;
+#endif
+} __attribute__((packed));
+
+typedef struct gate_struct gate_desc;
+
+static inline unsigned long gate_offset(const gate_desc *g)
+{
#ifdef CONFIG_X86_64
-typedef struct gate_struct64 gate_desc;
-typedef struct ldttss_desc64 ldt_desc;
-typedef struct ldttss_desc64 tss_desc;
-#define gate_offset(g) ((g).offset_low | ((unsigned long)(g).offset_middle << 16) | ((unsigned long)(g).offset_high << 32))
-#define gate_segment(g) ((g).segment)
+ return g->offset_low | ((unsigned long)g->offset_middle << 16) |
+ ((unsigned long) g->offset_high << 32);
#else
-typedef struct desc_struct gate_desc;
-typedef struct desc_struct ldt_desc;
-typedef struct desc_struct tss_desc;
-#define gate_offset(g) (((g).b & 0xffff0000) | ((g).a & 0x0000ffff))
-#define gate_segment(g) ((g).a >> 16)
+ return g->offset_low | ((unsigned long)g->offset_middle << 16);
#endif
+}
+
+static inline unsigned long gate_segment(const gate_desc *g)
+{
+ return g->segment;
+}
struct desc_ptr {
unsigned short size;
diff --git a/arch/x86/include/asm/disabled-features.h b/arch/x86/include/asm/disabled-features.h
index 5dff775af7cd..c10c9128f54e 100644
--- a/arch/x86/include/asm/disabled-features.h
+++ b/arch/x86/include/asm/disabled-features.h
@@ -21,11 +21,13 @@
# define DISABLE_K6_MTRR (1<<(X86_FEATURE_K6_MTRR & 31))
# define DISABLE_CYRIX_ARR (1<<(X86_FEATURE_CYRIX_ARR & 31))
# define DISABLE_CENTAUR_MCR (1<<(X86_FEATURE_CENTAUR_MCR & 31))
+# define DISABLE_PCID 0
#else
# define DISABLE_VME 0
# define DISABLE_K6_MTRR 0
# define DISABLE_CYRIX_ARR 0
# define DISABLE_CENTAUR_MCR 0
+# define DISABLE_PCID (1<<(X86_FEATURE_PCID & 31))
#endif /* CONFIG_X86_64 */
#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
@@ -49,7 +51,7 @@
#define DISABLED_MASK1 0
#define DISABLED_MASK2 0
#define DISABLED_MASK3 (DISABLE_CYRIX_ARR|DISABLE_CENTAUR_MCR|DISABLE_K6_MTRR)
-#define DISABLED_MASK4 0
+#define DISABLED_MASK4 (DISABLE_PCID)
#define DISABLED_MASK5 0
#define DISABLED_MASK6 0
#define DISABLED_MASK7 0
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 08a0838b83fb..1387dafdba2d 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -12,6 +12,7 @@
#include <asm/io.h>
#include <asm/swiotlb.h>
#include <linux/dma-contiguous.h>
+#include <linux/mem_encrypt.h>
#ifdef CONFIG_ISA
# define ISA_DMA_BIT_MASK DMA_BIT_MASK(24)
@@ -19,8 +20,6 @@
# define ISA_DMA_BIT_MASK DMA_BIT_MASK(32)
#endif
-#define DMA_ERROR_CODE 0
-
extern int iommu_merge;
extern struct device x86_dma_fallback_dev;
extern int panic_on_overflow;
@@ -35,9 +34,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp);
#define arch_dma_alloc_attrs arch_dma_alloc_attrs
-#define HAVE_ARCH_DMA_SUPPORTED 1
-extern int dma_supported(struct device *hwdev, u64 mask);
-
extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_addr, gfp_t flag,
unsigned long attrs);
@@ -62,12 +58,12 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
{
- return paddr;
+ return __sme_set(paddr);
}
static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
{
- return daddr;
+ return __sme_clr(daddr);
}
#endif /* CONFIG_X86_DMA_REMAP */
diff --git a/arch/x86/include/asm/dmi.h b/arch/x86/include/asm/dmi.h
index 3c69fed215c5..a8e15b04565b 100644
--- a/arch/x86/include/asm/dmi.h
+++ b/arch/x86/include/asm/dmi.h
@@ -13,9 +13,9 @@ static __always_inline __init void *dmi_alloc(unsigned len)
}
/* Use early IO mappings for DMI because it's initialized early */
-#define dmi_early_remap early_ioremap
-#define dmi_early_unmap early_iounmap
-#define dmi_remap ioremap_cache
-#define dmi_unmap iounmap
+#define dmi_early_remap early_memremap
+#define dmi_early_unmap early_memunmap
+#define dmi_remap(_x, _l) memremap(_x, _l, MEMREMAP_WB)
+#define dmi_unmap(_x) memunmap(_x)
#endif /* _ASM_X86_DMI_H */
diff --git a/arch/x86/include/asm/e820/api.h b/arch/x86/include/asm/e820/api.h
index 8e0f8b85b209..cd266d830e49 100644
--- a/arch/x86/include/asm/e820/api.h
+++ b/arch/x86/include/asm/e820/api.h
@@ -4,6 +4,7 @@
#include <asm/e820/types.h>
extern struct e820_table *e820_table;
+extern struct e820_table *e820_table_kexec;
extern struct e820_table *e820_table_firmware;
extern unsigned long pci_mem_start;
@@ -38,6 +39,8 @@ extern void e820__setup_pci_gap(void);
extern void e820__reallocate_tables(void);
extern void e820__register_nosave_regions(unsigned long limit_pfn);
+extern int e820__get_entry_type(u64 start, u64 end);
+
/*
* Returns true iff the specified range [start,end) is completely contained inside
* the ISA region.
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index 2f77bcefe6b4..796ff6c1aa53 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -33,7 +33,7 @@
#ifdef CONFIG_X86_32
-extern unsigned long asmlinkage efi_call_phys(void *, ...);
+extern asmlinkage unsigned long efi_call_phys(void *, ...);
#define arch_efi_call_virt_setup() kernel_fpu_begin()
#define arch_efi_call_virt_teardown() kernel_fpu_end()
@@ -52,7 +52,7 @@ extern unsigned long asmlinkage efi_call_phys(void *, ...);
#define EFI_LOADER_SIGNATURE "EL64"
-extern u64 asmlinkage efi_call(void *fp, ...);
+extern asmlinkage u64 efi_call(void *fp, ...);
#define efi_call_phys(f, args...) efi_call((f), args)
@@ -74,7 +74,7 @@ struct efi_scratch {
__kernel_fpu_begin(); \
\
if (efi_scratch.use_pgd) { \
- efi_scratch.prev_cr3 = read_cr3(); \
+ efi_scratch.prev_cr3 = __read_cr3(); \
write_cr3((unsigned long)efi_scratch.efi_pgt); \
__flush_tlb_all(); \
} \
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index e8ab9a46bc68..04330c8d9af9 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -126,15 +126,15 @@ do { \
pr_reg[4] = regs->di; \
pr_reg[5] = regs->bp; \
pr_reg[6] = regs->ax; \
- pr_reg[7] = regs->ds & 0xffff; \
- pr_reg[8] = regs->es & 0xffff; \
- pr_reg[9] = regs->fs & 0xffff; \
+ pr_reg[7] = regs->ds; \
+ pr_reg[8] = regs->es; \
+ pr_reg[9] = regs->fs; \
pr_reg[11] = regs->orig_ax; \
pr_reg[12] = regs->ip; \
- pr_reg[13] = regs->cs & 0xffff; \
+ pr_reg[13] = regs->cs; \
pr_reg[14] = regs->flags; \
pr_reg[15] = regs->sp; \
- pr_reg[16] = regs->ss & 0xffff; \
+ pr_reg[16] = regs->ss; \
} while (0);
#define ELF_CORE_COPY_REGS(pr_reg, regs) \
@@ -204,6 +204,7 @@ void set_personality_ia32(bool);
#define ELF_CORE_COPY_REGS(pr_reg, regs) \
do { \
+ unsigned long base; \
unsigned v; \
(pr_reg)[0] = (regs)->r15; \
(pr_reg)[1] = (regs)->r14; \
@@ -226,8 +227,8 @@ do { \
(pr_reg)[18] = (regs)->flags; \
(pr_reg)[19] = (regs)->sp; \
(pr_reg)[20] = (regs)->ss; \
- (pr_reg)[21] = current->thread.fsbase; \
- (pr_reg)[22] = current->thread.gsbase; \
+ rdmsrl(MSR_FS_BASE, base); (pr_reg)[21] = base; \
+ rdmsrl(MSR_KERNEL_GS_BASE, base); (pr_reg)[22] = base; \
asm("movl %%ds,%0" : "=r" (v)); (pr_reg)[23] = v; \
asm("movl %%es,%0" : "=r" (v)); (pr_reg)[24] = v; \
asm("movl %%fs,%0" : "=r" (v)); (pr_reg)[25] = v; \
@@ -245,12 +246,13 @@ extern int force_personality32;
#define CORE_DUMP_USE_REGSET
#define ELF_EXEC_PAGESIZE 4096
-/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
- use of this is to invoke "./ld.so someprog" to test out a new version of
- the loader. We need to make sure that it is out of the way of the program
- that it will "exec", and that there is sufficient room for the brk. */
-
-#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
+/*
+ * This is the base location for PIE (ET_DYN with INTERP) loads. On
+ * 64-bit, this is above 4GB to leave the entire 32-bit address
+ * space open for things that want to use the area for 32-bit pointers.
+ */
+#define ELF_ET_DYN_BASE (mmap_is_ia32() ? 0x000400000UL : \
+ (TASK_SIZE / 3 * 2))
/* This yields a mask that user programs can use to figure out what
instruction set this CPU supports. This could be done in user space,
@@ -303,8 +305,8 @@ static inline int mmap_is_ia32(void)
test_thread_flag(TIF_ADDR32));
}
-extern unsigned long tasksize_32bit(void);
-extern unsigned long tasksize_64bit(void);
+extern unsigned long task_size_32bit(void);
+extern unsigned long task_size_64bit(int full_addr_space);
extern unsigned long get_mmap_base(int is_legacy);
#ifdef CONFIG_X86_32
diff --git a/arch/x86/include/asm/entry_arch.h b/arch/x86/include/asm/entry_arch.h
index df002992d8fd..aa15d1f7e530 100644
--- a/arch/x86/include/asm/entry_arch.h
+++ b/arch/x86/include/asm/entry_arch.h
@@ -13,18 +13,14 @@
BUILD_INTERRUPT(reschedule_interrupt,RESCHEDULE_VECTOR)
BUILD_INTERRUPT(call_function_interrupt,CALL_FUNCTION_VECTOR)
BUILD_INTERRUPT(call_function_single_interrupt,CALL_FUNCTION_SINGLE_VECTOR)
-BUILD_INTERRUPT3(irq_move_cleanup_interrupt, IRQ_MOVE_CLEANUP_VECTOR,
- smp_irq_move_cleanup_interrupt)
-BUILD_INTERRUPT3(reboot_interrupt, REBOOT_VECTOR, smp_reboot_interrupt)
+BUILD_INTERRUPT(irq_move_cleanup_interrupt, IRQ_MOVE_CLEANUP_VECTOR)
+BUILD_INTERRUPT(reboot_interrupt, REBOOT_VECTOR)
#endif
-BUILD_INTERRUPT(x86_platform_ipi, X86_PLATFORM_IPI_VECTOR)
-
#ifdef CONFIG_HAVE_KVM
-BUILD_INTERRUPT3(kvm_posted_intr_ipi, POSTED_INTR_VECTOR,
- smp_kvm_posted_intr_ipi)
-BUILD_INTERRUPT3(kvm_posted_intr_wakeup_ipi, POSTED_INTR_WAKEUP_VECTOR,
- smp_kvm_posted_intr_wakeup_ipi)
+BUILD_INTERRUPT(kvm_posted_intr_ipi, POSTED_INTR_VECTOR)
+BUILD_INTERRUPT(kvm_posted_intr_wakeup_ipi, POSTED_INTR_WAKEUP_VECTOR)
+BUILD_INTERRUPT(kvm_posted_intr_nested_ipi, POSTED_INTR_NESTED_VECTOR)
#endif
/*
@@ -39,6 +35,7 @@ BUILD_INTERRUPT3(kvm_posted_intr_wakeup_ipi, POSTED_INTR_WAKEUP_VECTOR,
BUILD_INTERRUPT(apic_timer_interrupt,LOCAL_TIMER_VECTOR)
BUILD_INTERRUPT(error_interrupt,ERROR_APIC_VECTOR)
BUILD_INTERRUPT(spurious_interrupt,SPURIOUS_APIC_VECTOR)
+BUILD_INTERRUPT(x86_platform_ipi, X86_PLATFORM_IPI_VECTOR)
#ifdef CONFIG_IRQ_WORK
BUILD_INTERRUPT(irq_work_interrupt, IRQ_WORK_VECTOR)
diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h
index b65155cc3760..dcd9fb55e679 100644
--- a/arch/x86/include/asm/fixmap.h
+++ b/arch/x86/include/asm/fixmap.h
@@ -157,6 +157,26 @@ static inline void __set_fixmap(enum fixed_addresses idx,
}
#endif
+/*
+ * FIXMAP_PAGE_NOCACHE is used for MMIO. Memory encryption is not
+ * supported for MMIO addresses, so make sure that the memory encryption
+ * mask is not part of the page attributes.
+ */
+#define FIXMAP_PAGE_NOCACHE PAGE_KERNEL_IO_NOCACHE
+
+/*
+ * Early memremap routines used for in-place encryption. The mappings created
+ * by these routines are intended to be used as temporary mappings.
+ */
+void __init *early_memremap_encrypted(resource_size_t phys_addr,
+ unsigned long size);
+void __init *early_memremap_encrypted_wp(resource_size_t phys_addr,
+ unsigned long size);
+void __init *early_memremap_decrypted(resource_size_t phys_addr,
+ unsigned long size);
+void __init *early_memremap_decrypted_wp(resource_size_t phys_addr,
+ unsigned long size);
+
#include <asm-generic/fixmap.h>
#define __late_set_fixmap(idx, phys, flags) __set_fixmap(idx, phys, flags)
diff --git a/arch/x86/include/asm/fpu/internal.h b/arch/x86/include/asm/fpu/internal.h
index 255645f60ca2..e3221ffa304e 100644
--- a/arch/x86/include/asm/fpu/internal.h
+++ b/arch/x86/include/asm/fpu/internal.h
@@ -23,11 +23,9 @@
/*
* High level FPU state handling functions:
*/
-extern void fpu__activate_curr(struct fpu *fpu);
-extern void fpu__activate_fpstate_read(struct fpu *fpu);
-extern void fpu__activate_fpstate_write(struct fpu *fpu);
-extern void fpu__current_fpstate_write_begin(void);
-extern void fpu__current_fpstate_write_end(void);
+extern void fpu__initialize(struct fpu *fpu);
+extern void fpu__prepare_read(struct fpu *fpu);
+extern void fpu__prepare_write(struct fpu *fpu);
extern void fpu__save(struct fpu *fpu);
extern void fpu__restore(struct fpu *fpu);
extern int fpu__restore_sig(void __user *buf, int ia32_frame);
@@ -120,20 +118,11 @@ extern void fpstate_sanitize_xstate(struct fpu *fpu);
err; \
})
-#define check_insn(insn, output, input...) \
-({ \
- int err; \
+#define kernel_insn(insn, output, input...) \
asm volatile("1:" #insn "\n\t" \
"2:\n" \
- ".section .fixup,\"ax\"\n" \
- "3: movl $-1,%[err]\n" \
- " jmp 2b\n" \
- ".previous\n" \
- _ASM_EXTABLE(1b, 3b) \
- : [err] "=r" (err), output \
- : "0"(0), input); \
- err; \
-})
+ _ASM_EXTABLE_HANDLE(1b, 2b, ex_handler_fprestore) \
+ : output : input)
static inline int copy_fregs_to_user(struct fregs_state __user *fx)
{
@@ -153,20 +142,16 @@ static inline int copy_fxregs_to_user(struct fxregs_state __user *fx)
static inline void copy_kernel_to_fxregs(struct fxregs_state *fx)
{
- int err;
-
if (IS_ENABLED(CONFIG_X86_32)) {
- err = check_insn(fxrstor %[fx], "=m" (*fx), [fx] "m" (*fx));
+ kernel_insn(fxrstor %[fx], "=m" (*fx), [fx] "m" (*fx));
} else {
if (IS_ENABLED(CONFIG_AS_FXSAVEQ)) {
- err = check_insn(fxrstorq %[fx], "=m" (*fx), [fx] "m" (*fx));
+ kernel_insn(fxrstorq %[fx], "=m" (*fx), [fx] "m" (*fx));
} else {
/* See comment in copy_fxregs_to_kernel() below. */
- err = check_insn(rex64/fxrstor (%[fx]), "=m" (*fx), [fx] "R" (fx), "m" (*fx));
+ kernel_insn(rex64/fxrstor (%[fx]), "=m" (*fx), [fx] "R" (fx), "m" (*fx));
}
}
- /* Copying from a kernel buffer to FPU registers should never fail: */
- WARN_ON_FPU(err);
}
static inline int copy_user_to_fxregs(struct fxregs_state __user *fx)
@@ -183,9 +168,7 @@ static inline int copy_user_to_fxregs(struct fxregs_state __user *fx)
static inline void copy_kernel_to_fregs(struct fregs_state *fx)
{
- int err = check_insn(frstor %[fx], "=m" (*fx), [fx] "m" (*fx));
-
- WARN_ON_FPU(err);
+ kernel_insn(frstor %[fx], "=m" (*fx), [fx] "m" (*fx));
}
static inline int copy_user_to_fregs(struct fregs_state __user *fx)
@@ -281,18 +264,13 @@ static inline void copy_fxregs_to_kernel(struct fpu *fpu)
* Use XRSTORS to restore context if it is enabled. XRSTORS supports compact
* XSAVE area format.
*/
-#define XSTATE_XRESTORE(st, lmask, hmask, err) \
+#define XSTATE_XRESTORE(st, lmask, hmask) \
asm volatile(ALTERNATIVE(XRSTOR, \
XRSTORS, X86_FEATURE_XSAVES) \
"\n" \
- "xor %[err], %[err]\n" \
"3:\n" \
- ".pushsection .fixup,\"ax\"\n" \
- "4: movl $-2, %[err]\n" \
- "jmp 3b\n" \
- ".popsection\n" \
- _ASM_EXTABLE(661b, 4b) \
- : [err] "=r" (err) \
+ _ASM_EXTABLE_HANDLE(661b, 3b, ex_handler_fprestore)\
+ : \
: "D" (st), "m" (*st), "a" (lmask), "d" (hmask) \
: "memory")
@@ -336,7 +314,10 @@ static inline void copy_kernel_to_xregs_booting(struct xregs_state *xstate)
else
XSTATE_OP(XRSTOR, xstate, lmask, hmask, err);
- /* We should never fault when copying from a kernel buffer: */
+ /*
+ * We should never fault when copying from a kernel buffer, and the FPU
+ * state we set at boot time should be valid.
+ */
WARN_ON_FPU(err);
}
@@ -350,7 +331,7 @@ static inline void copy_xregs_to_kernel(struct xregs_state *xstate)
u32 hmask = mask >> 32;
int err;
- WARN_ON(!alternatives_patched);
+ WARN_ON_FPU(!alternatives_patched);
XSTATE_XSAVE(xstate, lmask, hmask, err);
@@ -365,12 +346,8 @@ static inline void copy_kernel_to_xregs(struct xregs_state *xstate, u64 mask)
{
u32 lmask = mask;
u32 hmask = mask >> 32;
- int err;
-
- XSTATE_XRESTORE(xstate, lmask, hmask, err);
- /* We should never fault when copying from a kernel buffer: */
- WARN_ON_FPU(err);
+ XSTATE_XRESTORE(xstate, lmask, hmask);
}
/*
@@ -450,10 +427,10 @@ static inline int copy_fpregs_to_fpstate(struct fpu *fpu)
return 0;
}
-static inline void __copy_kernel_to_fpregs(union fpregs_state *fpstate)
+static inline void __copy_kernel_to_fpregs(union fpregs_state *fpstate, u64 mask)
{
if (use_xsave()) {
- copy_kernel_to_xregs(&fpstate->xsave, -1);
+ copy_kernel_to_xregs(&fpstate->xsave, mask);
} else {
if (use_fxsr())
copy_kernel_to_fxregs(&fpstate->fxsave);
@@ -477,7 +454,7 @@ static inline void copy_kernel_to_fpregs(union fpregs_state *fpstate)
: : [addr] "m" (fpstate));
}
- __copy_kernel_to_fpregs(fpstate);
+ __copy_kernel_to_fpregs(fpstate, -1);
}
extern int copy_fpstate_to_sigframe(void __user *buf, void __user *fp, int size);
@@ -526,38 +503,17 @@ static inline int fpregs_state_valid(struct fpu *fpu, unsigned int cpu)
*/
static inline void fpregs_deactivate(struct fpu *fpu)
{
- WARN_ON_FPU(!fpu->fpregs_active);
-
- fpu->fpregs_active = 0;
this_cpu_write(fpu_fpregs_owner_ctx, NULL);
trace_x86_fpu_regs_deactivated(fpu);
}
static inline void fpregs_activate(struct fpu *fpu)
{
- WARN_ON_FPU(fpu->fpregs_active);
-
- fpu->fpregs_active = 1;
this_cpu_write(fpu_fpregs_owner_ctx, fpu);
trace_x86_fpu_regs_activated(fpu);
}
/*
- * The question "does this thread have fpu access?"
- * is slightly racy, since preemption could come in
- * and revoke it immediately after the test.
- *
- * However, even in that very unlikely scenario,
- * we can just assume we have FPU access - typically
- * to save the FP state - we'll just take a #NM
- * fault and get the FPU access back.
- */
-static inline int fpregs_active(void)
-{
- return current->thread.fpu.fpregs_active;
-}
-
-/*
* FPU state switching for scheduling.
*
* This is a two-stage process:
@@ -571,14 +527,13 @@ static inline int fpregs_active(void)
static inline void
switch_fpu_prepare(struct fpu *old_fpu, int cpu)
{
- if (old_fpu->fpregs_active) {
+ if (old_fpu->initialized) {
if (!copy_fpregs_to_fpstate(old_fpu))
old_fpu->last_cpu = -1;
else
old_fpu->last_cpu = cpu;
/* But leave fpu_fpregs_owner_ctx! */
- old_fpu->fpregs_active = 0;
trace_x86_fpu_regs_deactivated(old_fpu);
} else
old_fpu->last_cpu = -1;
@@ -595,7 +550,7 @@ switch_fpu_prepare(struct fpu *old_fpu, int cpu)
static inline void switch_fpu_finish(struct fpu *new_fpu, int cpu)
{
bool preload = static_cpu_has(X86_FEATURE_FPU) &&
- new_fpu->fpstate_active;
+ new_fpu->initialized;
if (preload) {
if (!fpregs_state_valid(new_fpu, cpu))
@@ -617,8 +572,7 @@ static inline void user_fpu_begin(void)
struct fpu *fpu = &current->thread.fpu;
preempt_disable();
- if (!fpregs_active())
- fpregs_activate(fpu);
+ fpregs_activate(fpu);
preempt_enable();
}
diff --git a/arch/x86/include/asm/fpu/types.h b/arch/x86/include/asm/fpu/types.h
index 3c80f5b9c09d..a1520575d86b 100644
--- a/arch/x86/include/asm/fpu/types.h
+++ b/arch/x86/include/asm/fpu/types.h
@@ -68,6 +68,9 @@ struct fxregs_state {
/* Default value for fxregs_state.mxcsr: */
#define MXCSR_DEFAULT 0x1f80
+/* Copy both mxcsr & mxcsr_flags with a single u64 memcpy: */
+#define MXCSR_AND_FLAGS_SIZE sizeof(u64)
+
/*
* Software based FPU emulation state. This is arbitrary really,
* it matches the x87 format to make it easier to understand:
@@ -290,36 +293,13 @@ struct fpu {
unsigned int last_cpu;
/*
- * @fpstate_active:
+ * @initialized:
*
- * This flag indicates whether this context is active: if the task
+ * This flag indicates whether this context is initialized: if the task
* is not running then we can restore from this context, if the task
* is running then we should save into this context.
*/
- unsigned char fpstate_active;
-
- /*
- * @fpregs_active:
- *
- * This flag determines whether a given context is actively
- * loaded into the FPU's registers and that those registers
- * represent the task's current FPU state.
- *
- * Note the interaction with fpstate_active:
- *
- * # task does not use the FPU:
- * fpstate_active == 0
- *
- * # task uses the FPU and regs are active:
- * fpstate_active == 1 && fpregs_active == 1
- *
- * # the regs are inactive but still match fpstate:
- * fpstate_active == 1 && fpregs_active == 0 && fpregs_owner == fpu
- *
- * The third state is what we use for the lazy restore optimization
- * on lazy-switching CPUs.
- */
- unsigned char fpregs_active;
+ unsigned char initialized;
/*
* @state:
diff --git a/arch/x86/include/asm/fpu/xstate.h b/arch/x86/include/asm/fpu/xstate.h
index 1b2799e0699a..83fee2469eb7 100644
--- a/arch/x86/include/asm/fpu/xstate.h
+++ b/arch/x86/include/asm/fpu/xstate.h
@@ -48,8 +48,12 @@ void fpu__xstate_clear_all_cpu_caps(void);
void *get_xsave_addr(struct xregs_state *xsave, int xstate);
const void *get_xsave_field_ptr(int xstate_field);
int using_compacted_format(void);
-int copyout_from_xsaves(unsigned int pos, unsigned int count, void *kbuf,
- void __user *ubuf, struct xregs_state *xsave);
-int copyin_to_xsaves(const void *kbuf, const void __user *ubuf,
- struct xregs_state *xsave);
+int copy_xstate_to_kernel(void *kbuf, struct xregs_state *xsave, unsigned int offset, unsigned int size);
+int copy_xstate_to_user(void __user *ubuf, struct xregs_state *xsave, unsigned int offset, unsigned int size);
+int copy_kernel_to_xstate(struct xregs_state *xsave, const void *kbuf);
+int copy_user_to_xstate(struct xregs_state *xsave, const void __user *ubuf);
+
+/* Validate an xstate header supplied by userspace (ptrace or sigreturn) */
+extern int validate_xstate_header(const struct xstate_header *hdr);
+
#endif
diff --git a/arch/x86/include/asm/futex.h b/arch/x86/include/asm/futex.h
index b4c1f5453436..f4dc9b63bdda 100644
--- a/arch/x86/include/asm/futex.h
+++ b/arch/x86/include/asm/futex.h
@@ -41,20 +41,11 @@
"+m" (*uaddr), "=&r" (tem) \
: "r" (oparg), "i" (-EFAULT), "1" (0))
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+ u32 __user *uaddr)
{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
int oldval = 0, ret, tem;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
- return -EFAULT;
-
pagefault_disable();
switch (op) {
@@ -80,30 +71,9 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
pagefault_enable();
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ:
- ret = (oldval == cmparg);
- break;
- case FUTEX_OP_CMP_NE:
- ret = (oldval != cmparg);
- break;
- case FUTEX_OP_CMP_LT:
- ret = (oldval < cmparg);
- break;
- case FUTEX_OP_CMP_GE:
- ret = (oldval >= cmparg);
- break;
- case FUTEX_OP_CMP_LE:
- ret = (oldval <= cmparg);
- break;
- case FUTEX_OP_CMP_GT:
- ret = (oldval > cmparg);
- break;
- default:
- ret = -ENOSYS;
- }
- }
+ if (!ret)
+ *oval = oldval;
+
return ret;
}
diff --git a/arch/x86/include/asm/hardirq.h b/arch/x86/include/asm/hardirq.h
index 59405a248fc2..ad1ed531febc 100644
--- a/arch/x86/include/asm/hardirq.h
+++ b/arch/x86/include/asm/hardirq.h
@@ -15,6 +15,7 @@ typedef struct {
#ifdef CONFIG_HAVE_KVM
unsigned int kvm_posted_intr_ipis;
unsigned int kvm_posted_intr_wakeup_ipis;
+ unsigned int kvm_posted_intr_nested_ipis;
#endif
unsigned int x86_platform_ipis; /* arch dependent */
unsigned int apic_perf_irqs;
@@ -22,8 +23,8 @@ typedef struct {
#ifdef CONFIG_SMP
unsigned int irq_resched_count;
unsigned int irq_call_count;
- unsigned int irq_tlb_count;
#endif
+ unsigned int irq_tlb_count;
#ifdef CONFIG_X86_THERMAL_VECTOR
unsigned int irq_thermal_count;
#endif
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 3a106165e03a..535af0f2d8ac 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -85,4 +85,8 @@ static inline void arch_clear_hugepage_flags(struct page *page)
{
}
+#ifdef CONFIG_ARCH_HAS_GIGANTIC_PAGE
+static inline bool gigantic_page_supported(void) { return true; }
+#endif
+
#endif /* _ASM_X86_HUGETLB_H */
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index b90e1053049b..6dfe366a8804 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -30,6 +30,7 @@ extern asmlinkage void apic_timer_interrupt(void);
extern asmlinkage void x86_platform_ipi(void);
extern asmlinkage void kvm_posted_intr_ipi(void);
extern asmlinkage void kvm_posted_intr_wakeup_ipi(void);
+extern asmlinkage void kvm_posted_intr_nested_ipi(void);
extern asmlinkage void error_interrupt(void);
extern asmlinkage void irq_work_interrupt(void);
@@ -45,25 +46,6 @@ extern asmlinkage void deferred_error_interrupt(void);
extern asmlinkage void call_function_interrupt(void);
extern asmlinkage void call_function_single_interrupt(void);
-#ifdef CONFIG_TRACING
-/* Interrupt handlers registered during init_IRQ */
-extern void trace_apic_timer_interrupt(void);
-extern void trace_x86_platform_ipi(void);
-extern void trace_error_interrupt(void);
-extern void trace_irq_work_interrupt(void);
-extern void trace_spurious_interrupt(void);
-extern void trace_thermal_interrupt(void);
-extern void trace_reschedule_interrupt(void);
-extern void trace_threshold_interrupt(void);
-extern void trace_deferred_error_interrupt(void);
-extern void trace_call_function_interrupt(void);
-extern void trace_call_function_single_interrupt(void);
-#define trace_irq_move_cleanup_interrupt irq_move_cleanup_interrupt
-#define trace_reboot_interrupt reboot_interrupt
-#define trace_kvm_posted_intr_ipi kvm_posted_intr_ipi
-#define trace_kvm_posted_intr_wakeup_ipi kvm_posted_intr_wakeup_ipi
-#endif /* CONFIG_TRACING */
-
#ifdef CONFIG_X86_LOCAL_APIC
struct irq_data;
struct pci_dev;
diff --git a/arch/x86/include/asm/hypervisor.h b/arch/x86/include/asm/hypervisor.h
index 21126155a739..0ead9dbb9130 100644
--- a/arch/x86/include/asm/hypervisor.h
+++ b/arch/x86/include/asm/hypervisor.h
@@ -43,6 +43,9 @@ struct hypervisor_x86 {
/* pin current vcpu to specified physical cpu (run rarely) */
void (*pin_vcpu)(int);
+
+ /* called during init_mem_mapping() to setup early mappings. */
+ void (*init_mem_mapping)(void);
};
extern const struct hypervisor_x86 *x86_hyper;
@@ -57,8 +60,15 @@ extern const struct hypervisor_x86 x86_hyper_kvm;
extern void init_hypervisor_platform(void);
extern bool hypervisor_x2apic_available(void);
extern void hypervisor_pin_vcpu(int cpu);
+
+static inline void hypervisor_init_mem_mapping(void)
+{
+ if (x86_hyper && x86_hyper->init_mem_mapping)
+ x86_hyper->init_mem_mapping();
+}
#else
static inline void init_hypervisor_platform(void) { }
static inline bool hypervisor_x2apic_available(void) { return false; }
+static inline void hypervisor_init_mem_mapping(void) { }
#endif /* CONFIG_HYPERVISOR_GUEST */
#endif /* _ASM_X86_HYPERVISOR_H */
diff --git a/arch/x86/include/asm/init.h b/arch/x86/include/asm/init.h
index 474eb8c66fee..05c4aa00cc86 100644
--- a/arch/x86/include/asm/init.h
+++ b/arch/x86/include/asm/init.h
@@ -7,6 +7,7 @@ struct x86_mapping_info {
unsigned long page_flag; /* page flag for PMD or PUD entry */
unsigned long offset; /* ident mapping offset */
bool direct_gbpages; /* PUD level 1GB page support */
+ unsigned long kernpg_flag; /* kernel pagetable flag override */
};
int kernel_ident_mapping_init(struct x86_mapping_info *info, pgd_t *pgd_page,
diff --git a/arch/x86/include/asm/intel_rdt.h b/arch/x86/include/asm/intel_rdt.h
deleted file mode 100644
index 597dc4995678..000000000000
--- a/arch/x86/include/asm/intel_rdt.h
+++ /dev/null
@@ -1,286 +0,0 @@
-#ifndef _ASM_X86_INTEL_RDT_H
-#define _ASM_X86_INTEL_RDT_H
-
-#ifdef CONFIG_INTEL_RDT_A
-
-#include <linux/sched.h>
-#include <linux/kernfs.h>
-#include <linux/jump_label.h>
-
-#include <asm/intel_rdt_common.h>
-
-#define IA32_L3_QOS_CFG 0xc81
-#define IA32_L3_CBM_BASE 0xc90
-#define IA32_L2_CBM_BASE 0xd10
-#define IA32_MBA_THRTL_BASE 0xd50
-
-#define L3_QOS_CDP_ENABLE 0x01ULL
-
-/**
- * struct rdtgroup - store rdtgroup's data in resctrl file system.
- * @kn: kernfs node
- * @rdtgroup_list: linked list for all rdtgroups
- * @closid: closid for this rdtgroup
- * @cpu_mask: CPUs assigned to this rdtgroup
- * @flags: status bits
- * @waitcount: how many cpus expect to find this
- * group when they acquire rdtgroup_mutex
- */
-struct rdtgroup {
- struct kernfs_node *kn;
- struct list_head rdtgroup_list;
- int closid;
- struct cpumask cpu_mask;
- int flags;
- atomic_t waitcount;
-};
-
-/* rdtgroup.flags */
-#define RDT_DELETED 1
-
-/* rftype.flags */
-#define RFTYPE_FLAGS_CPUS_LIST 1
-
-/* List of all resource groups */
-extern struct list_head rdt_all_groups;
-
-extern int max_name_width, max_data_width;
-
-int __init rdtgroup_init(void);
-
-/**
- * struct rftype - describe each file in the resctrl file system
- * @name: File name
- * @mode: Access mode
- * @kf_ops: File operations
- * @flags: File specific RFTYPE_FLAGS_* flags
- * @seq_show: Show content of the file
- * @write: Write to the file
- */
-struct rftype {
- char *name;
- umode_t mode;
- struct kernfs_ops *kf_ops;
- unsigned long flags;
-
- int (*seq_show)(struct kernfs_open_file *of,
- struct seq_file *sf, void *v);
- /*
- * write() is the generic write callback which maps directly to
- * kernfs write operation and overrides all other operations.
- * Maximum write size is determined by ->max_write_len.
- */
- ssize_t (*write)(struct kernfs_open_file *of,
- char *buf, size_t nbytes, loff_t off);
-};
-
-/**
- * struct rdt_domain - group of cpus sharing an RDT resource
- * @list: all instances of this resource
- * @id: unique id for this instance
- * @cpu_mask: which cpus share this resource
- * @ctrl_val: array of cache or mem ctrl values (indexed by CLOSID)
- * @new_ctrl: new ctrl value to be loaded
- * @have_new_ctrl: did user provide new_ctrl for this domain
- */
-struct rdt_domain {
- struct list_head list;
- int id;
- struct cpumask cpu_mask;
- u32 *ctrl_val;
- u32 new_ctrl;
- bool have_new_ctrl;
-};
-
-/**
- * struct msr_param - set a range of MSRs from a domain
- * @res: The resource to use
- * @low: Beginning index from base MSR
- * @high: End index
- */
-struct msr_param {
- struct rdt_resource *res;
- int low;
- int high;
-};
-
-/**
- * struct rdt_cache - Cache allocation related data
- * @cbm_len: Length of the cache bit mask
- * @min_cbm_bits: Minimum number of consecutive bits to be set
- * @cbm_idx_mult: Multiplier of CBM index
- * @cbm_idx_offset: Offset of CBM index. CBM index is computed by:
- * closid * cbm_idx_multi + cbm_idx_offset
- * in a cache bit mask
- */
-struct rdt_cache {
- unsigned int cbm_len;
- unsigned int min_cbm_bits;
- unsigned int cbm_idx_mult;
- unsigned int cbm_idx_offset;
-};
-
-/**
- * struct rdt_membw - Memory bandwidth allocation related data
- * @max_delay: Max throttle delay. Delay is the hardware
- * representation for memory bandwidth.
- * @min_bw: Minimum memory bandwidth percentage user can request
- * @bw_gran: Granularity at which the memory bandwidth is allocated
- * @delay_linear: True if memory B/W delay is in linear scale
- * @mb_map: Mapping of memory B/W percentage to memory B/W delay
- */
-struct rdt_membw {
- u32 max_delay;
- u32 min_bw;
- u32 bw_gran;
- u32 delay_linear;
- u32 *mb_map;
-};
-
-/**
- * struct rdt_resource - attributes of an RDT resource
- * @enabled: Is this feature enabled on this machine
- * @capable: Is this feature available on this machine
- * @name: Name to use in "schemata" file
- * @num_closid: Number of CLOSIDs available
- * @cache_level: Which cache level defines scope of this resource
- * @default_ctrl: Specifies default cache cbm or memory B/W percent.
- * @msr_base: Base MSR address for CBMs
- * @msr_update: Function pointer to update QOS MSRs
- * @data_width: Character width of data when displaying
- * @domains: All domains for this resource
- * @cache: Cache allocation related data
- * @info_files: resctrl info files for the resource
- * @nr_info_files: Number of info files
- * @format_str: Per resource format string to show domain value
- * @parse_ctrlval: Per resource function pointer to parse control values
- */
-struct rdt_resource {
- bool enabled;
- bool capable;
- char *name;
- int num_closid;
- int cache_level;
- u32 default_ctrl;
- unsigned int msr_base;
- void (*msr_update) (struct rdt_domain *d, struct msr_param *m,
- struct rdt_resource *r);
- int data_width;
- struct list_head domains;
- struct rdt_cache cache;
- struct rdt_membw membw;
- struct rftype *info_files;
- int nr_info_files;
- const char *format_str;
- int (*parse_ctrlval) (char *buf, struct rdt_resource *r,
- struct rdt_domain *d);
-};
-
-void rdt_get_cache_infofile(struct rdt_resource *r);
-void rdt_get_mba_infofile(struct rdt_resource *r);
-int parse_cbm(char *buf, struct rdt_resource *r, struct rdt_domain *d);
-int parse_bw(char *buf, struct rdt_resource *r, struct rdt_domain *d);
-
-extern struct mutex rdtgroup_mutex;
-
-extern struct rdt_resource rdt_resources_all[];
-extern struct rdtgroup rdtgroup_default;
-DECLARE_STATIC_KEY_FALSE(rdt_enable_key);
-
-int __init rdtgroup_init(void);
-
-enum {
- RDT_RESOURCE_L3,
- RDT_RESOURCE_L3DATA,
- RDT_RESOURCE_L3CODE,
- RDT_RESOURCE_L2,
- RDT_RESOURCE_MBA,
-
- /* Must be the last */
- RDT_NUM_RESOURCES,
-};
-
-#define for_each_capable_rdt_resource(r) \
- for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\
- r++) \
- if (r->capable)
-
-#define for_each_enabled_rdt_resource(r) \
- for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\
- r++) \
- if (r->enabled)
-
-/* CPUID.(EAX=10H, ECX=ResID=1).EAX */
-union cpuid_0x10_1_eax {
- struct {
- unsigned int cbm_len:5;
- } split;
- unsigned int full;
-};
-
-/* CPUID.(EAX=10H, ECX=ResID=3).EAX */
-union cpuid_0x10_3_eax {
- struct {
- unsigned int max_delay:12;
- } split;
- unsigned int full;
-};
-
-/* CPUID.(EAX=10H, ECX=ResID).EDX */
-union cpuid_0x10_x_edx {
- struct {
- unsigned int cos_max:16;
- } split;
- unsigned int full;
-};
-
-DECLARE_PER_CPU_READ_MOSTLY(int, cpu_closid);
-
-void rdt_ctrl_update(void *arg);
-struct rdtgroup *rdtgroup_kn_lock_live(struct kernfs_node *kn);
-void rdtgroup_kn_unlock(struct kernfs_node *kn);
-ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of,
- char *buf, size_t nbytes, loff_t off);
-int rdtgroup_schemata_show(struct kernfs_open_file *of,
- struct seq_file *s, void *v);
-
-/*
- * intel_rdt_sched_in() - Writes the task's CLOSid to IA32_PQR_MSR
- *
- * Following considerations are made so that this has minimal impact
- * on scheduler hot path:
- * - This will stay as no-op unless we are running on an Intel SKU
- * which supports resource control and we enable by mounting the
- * resctrl file system.
- * - Caches the per cpu CLOSid values and does the MSR write only
- * when a task with a different CLOSid is scheduled in.
- *
- * Must be called with preemption disabled.
- */
-static inline void intel_rdt_sched_in(void)
-{
- if (static_branch_likely(&rdt_enable_key)) {
- struct intel_pqr_state *state = this_cpu_ptr(&pqr_state);
- int closid;
-
- /*
- * If this task has a closid assigned, use it.
- * Else use the closid assigned to this cpu.
- */
- closid = current->closid;
- if (closid == 0)
- closid = this_cpu_read(cpu_closid);
-
- if (closid != state->closid) {
- state->closid = closid;
- wrmsr(MSR_IA32_PQR_ASSOC, state->rmid, closid);
- }
- }
-}
-
-#else
-
-static inline void intel_rdt_sched_in(void) {}
-
-#endif /* CONFIG_INTEL_RDT_A */
-#endif /* _ASM_X86_INTEL_RDT_H */
diff --git a/arch/x86/include/asm/intel_rdt_common.h b/arch/x86/include/asm/intel_rdt_common.h
deleted file mode 100644
index b31081b89407..000000000000
--- a/arch/x86/include/asm/intel_rdt_common.h
+++ /dev/null
@@ -1,27 +0,0 @@
-#ifndef _ASM_X86_INTEL_RDT_COMMON_H
-#define _ASM_X86_INTEL_RDT_COMMON_H
-
-#define MSR_IA32_PQR_ASSOC 0x0c8f
-
-/**
- * struct intel_pqr_state - State cache for the PQR MSR
- * @rmid: The cached Resource Monitoring ID
- * @closid: The cached Class Of Service ID
- * @rmid_usecnt: The usage counter for rmid
- *
- * The upper 32 bits of MSR_IA32_PQR_ASSOC contain closid and the
- * lower 10 bits rmid. The update to MSR_IA32_PQR_ASSOC always
- * contains both parts, so we need to cache them.
- *
- * The cache also helps to avoid pointless updates if the value does
- * not change.
- */
-struct intel_pqr_state {
- u32 rmid;
- u32 closid;
- int rmid_usecnt;
-};
-
-DECLARE_PER_CPU(struct intel_pqr_state, pqr_state);
-
-#endif /* _ASM_X86_INTEL_RDT_COMMON_H */
diff --git a/arch/x86/include/asm/intel_rdt_sched.h b/arch/x86/include/asm/intel_rdt_sched.h
new file mode 100644
index 000000000000..b4bbf8b21512
--- /dev/null
+++ b/arch/x86/include/asm/intel_rdt_sched.h
@@ -0,0 +1,92 @@
+#ifndef _ASM_X86_INTEL_RDT_SCHED_H
+#define _ASM_X86_INTEL_RDT_SCHED_H
+
+#ifdef CONFIG_INTEL_RDT
+
+#include <linux/sched.h>
+#include <linux/jump_label.h>
+
+#define IA32_PQR_ASSOC 0x0c8f
+
+/**
+ * struct intel_pqr_state - State cache for the PQR MSR
+ * @cur_rmid: The cached Resource Monitoring ID
+ * @cur_closid: The cached Class Of Service ID
+ * @default_rmid: The user assigned Resource Monitoring ID
+ * @default_closid: The user assigned cached Class Of Service ID
+ *
+ * The upper 32 bits of IA32_PQR_ASSOC contain closid and the
+ * lower 10 bits rmid. The update to IA32_PQR_ASSOC always
+ * contains both parts, so we need to cache them. This also
+ * stores the user configured per cpu CLOSID and RMID.
+ *
+ * The cache also helps to avoid pointless updates if the value does
+ * not change.
+ */
+struct intel_pqr_state {
+ u32 cur_rmid;
+ u32 cur_closid;
+ u32 default_rmid;
+ u32 default_closid;
+};
+
+DECLARE_PER_CPU(struct intel_pqr_state, pqr_state);
+
+DECLARE_STATIC_KEY_FALSE(rdt_enable_key);
+DECLARE_STATIC_KEY_FALSE(rdt_alloc_enable_key);
+DECLARE_STATIC_KEY_FALSE(rdt_mon_enable_key);
+
+/*
+ * __intel_rdt_sched_in() - Writes the task's CLOSid/RMID to IA32_PQR_MSR
+ *
+ * Following considerations are made so that this has minimal impact
+ * on scheduler hot path:
+ * - This will stay as no-op unless we are running on an Intel SKU
+ * which supports resource control or monitoring and we enable by
+ * mounting the resctrl file system.
+ * - Caches the per cpu CLOSid/RMID values and does the MSR write only
+ * when a task with a different CLOSid/RMID is scheduled in.
+ * - We allocate RMIDs/CLOSids globally in order to keep this as
+ * simple as possible.
+ * Must be called with preemption disabled.
+ */
+static void __intel_rdt_sched_in(void)
+{
+ struct intel_pqr_state *state = this_cpu_ptr(&pqr_state);
+ u32 closid = state->default_closid;
+ u32 rmid = state->default_rmid;
+
+ /*
+ * If this task has a closid/rmid assigned, use it.
+ * Else use the closid/rmid assigned to this cpu.
+ */
+ if (static_branch_likely(&rdt_alloc_enable_key)) {
+ if (current->closid)
+ closid = current->closid;
+ }
+
+ if (static_branch_likely(&rdt_mon_enable_key)) {
+ if (current->rmid)
+ rmid = current->rmid;
+ }
+
+ if (closid != state->cur_closid || rmid != state->cur_rmid) {
+ state->cur_closid = closid;
+ state->cur_rmid = rmid;
+ wrmsr(IA32_PQR_ASSOC, rmid, closid);
+ }
+}
+
+static inline void intel_rdt_sched_in(void)
+{
+ if (static_branch_likely(&rdt_enable_key))
+ __intel_rdt_sched_in();
+}
+
+#else
+
+static inline void intel_rdt_sched_in(void) {}
+
+#endif /* CONFIG_INTEL_RDT */
+
+#endif /* _ASM_X86_INTEL_RDT_SCHED_H */
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index 7afb0e2f07f4..322d25ae23ab 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -69,6 +69,9 @@ build_mmio_write(__writeb, "b", unsigned char, "q", )
build_mmio_write(__writew, "w", unsigned short, "r", )
build_mmio_write(__writel, "l", unsigned int, "r", )
+#define readb readb
+#define readw readw
+#define readl readl
#define readb_relaxed(a) __readb(a)
#define readw_relaxed(a) __readw(a)
#define readl_relaxed(a) __readl(a)
@@ -76,6 +79,9 @@ build_mmio_write(__writel, "l", unsigned int, "r", )
#define __raw_readw __readw
#define __raw_readl __readl
+#define writeb writeb
+#define writew writew
+#define writel writel
#define writeb_relaxed(v, a) __writeb(v, a)
#define writew_relaxed(v, a) __writew(v, a)
#define writel_relaxed(v, a) __writel(v, a)
@@ -88,13 +94,15 @@ build_mmio_write(__writel, "l", unsigned int, "r", )
#ifdef CONFIG_X86_64
build_mmio_read(readq, "q", unsigned long, "=r", :"memory")
+build_mmio_read(__readq, "q", unsigned long, "=r", )
build_mmio_write(writeq, "q", unsigned long, "r", :"memory")
+build_mmio_write(__writeq, "q", unsigned long, "r", )
-#define readq_relaxed(a) readq(a)
-#define writeq_relaxed(v, a) writeq(v, a)
+#define readq_relaxed(a) __readq(a)
+#define writeq_relaxed(v, a) __writeq(v, a)
-#define __raw_readq(a) readq(a)
-#define __raw_writeq(val, addr) writeq(val, addr)
+#define __raw_readq __readq
+#define __raw_writeq __writeq
/* Let people know that we have them */
#define readq readq
@@ -102,6 +110,10 @@ build_mmio_write(writeq, "q", unsigned long, "r", :"memory")
#endif
+#define ARCH_HAS_VALID_PHYS_ADDR_RANGE
+extern int valid_phys_addr_range(phys_addr_t addr, size_t size);
+extern int valid_mmap_phys_addr_range(unsigned long pfn, size_t size);
+
/**
* virt_to_phys - map virtual addresses to physical
* @address: address to remap
@@ -119,6 +131,7 @@ static inline phys_addr_t virt_to_phys(volatile void *address)
{
return __pa(address);
}
+#define virt_to_phys virt_to_phys
/**
* phys_to_virt - map physical address to virtual
@@ -137,6 +150,7 @@ static inline void *phys_to_virt(phys_addr_t address)
{
return __va(address);
}
+#define phys_to_virt phys_to_virt
/*
* Change "struct page" to physical address.
@@ -169,11 +183,14 @@ static inline unsigned int isa_virt_to_bus(volatile void *address)
* else, you probably want one of the following.
*/
extern void __iomem *ioremap_nocache(resource_size_t offset, unsigned long size);
+#define ioremap_nocache ioremap_nocache
extern void __iomem *ioremap_uc(resource_size_t offset, unsigned long size);
#define ioremap_uc ioremap_uc
extern void __iomem *ioremap_cache(resource_size_t offset, unsigned long size);
+#define ioremap_cache ioremap_cache
extern void __iomem *ioremap_prot(resource_size_t offset, unsigned long size, unsigned long prot_val);
+#define ioremap_prot ioremap_prot
/**
* ioremap - map bus memory into CPU space
@@ -193,8 +210,10 @@ static inline void __iomem *ioremap(resource_size_t offset, unsigned long size)
{
return ioremap_nocache(offset, size);
}
+#define ioremap ioremap
extern void iounmap(volatile void __iomem *addr);
+#define iounmap iounmap
extern void set_iounmap_nonlazy(void);
@@ -203,53 +222,6 @@ extern void set_iounmap_nonlazy(void);
#include <asm-generic/iomap.h>
/*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p) p
-
-/**
- * memset_io Set a range of I/O memory to a constant value
- * @addr: The beginning of the I/O-memory range to set
- * @val: The value to set the memory to
- * @count: The number of bytes to set
- *
- * Set a range of I/O memory to a given value.
- */
-static inline void
-memset_io(volatile void __iomem *addr, unsigned char val, size_t count)
-{
- memset((void __force *)addr, val, count);
-}
-
-/**
- * memcpy_fromio Copy a block of data from I/O memory
- * @dst: The (RAM) destination for the copy
- * @src: The (I/O memory) source for the data
- * @count: The number of bytes to copy
- *
- * Copy a block of data from I/O memory.
- */
-static inline void
-memcpy_fromio(void *dst, const volatile void __iomem *src, size_t count)
-{
- memcpy(dst, (const void __force *)src, count);
-}
-
-/**
- * memcpy_toio Copy a block of data into I/O memory
- * @dst: The (I/O memory) destination for the copy
- * @src: The (RAM) source for the data
- * @count: The number of bytes to copy
- *
- * Copy a block of data to I/O memory.
- */
-static inline void
-memcpy_toio(volatile void __iomem *dst, const void *src, size_t count)
-{
- memcpy((void __force *)dst, src, count);
-}
-
-/*
* ISA space is 'always mapped' on a typical x86 system, no need to
* explicitly ioremap() it. The fact that the ISA IO space is mapped
* to PAGE_OFFSET is pure coincidence - it does not mean ISA values
@@ -328,26 +300,51 @@ static inline unsigned type in##bwl##_p(int port) \
static inline void outs##bwl(int port, const void *addr, unsigned long count) \
{ \
asm volatile("rep; outs" #bwl \
- : "+S"(addr), "+c"(count) : "d"(port)); \
+ : "+S"(addr), "+c"(count) : "d"(port) : "memory"); \
} \
\
static inline void ins##bwl(int port, void *addr, unsigned long count) \
{ \
asm volatile("rep; ins" #bwl \
- : "+D"(addr), "+c"(count) : "d"(port)); \
+ : "+D"(addr), "+c"(count) : "d"(port) : "memory"); \
}
BUILDIO(b, b, char)
BUILDIO(w, w, short)
BUILDIO(l, , int)
+#define inb inb
+#define inw inw
+#define inl inl
+#define inb_p inb_p
+#define inw_p inw_p
+#define inl_p inl_p
+#define insb insb
+#define insw insw
+#define insl insl
+
+#define outb outb
+#define outw outw
+#define outl outl
+#define outb_p outb_p
+#define outw_p outw_p
+#define outl_p outl_p
+#define outsb outsb
+#define outsw outsw
+#define outsl outsl
+
extern void *xlate_dev_mem_ptr(phys_addr_t phys);
extern void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr);
+#define xlate_dev_mem_ptr xlate_dev_mem_ptr
+#define unxlate_dev_mem_ptr unxlate_dev_mem_ptr
+
extern int ioremap_change_attr(unsigned long vaddr, unsigned long size,
enum page_cache_mode pcm);
extern void __iomem *ioremap_wc(resource_size_t offset, unsigned long size);
+#define ioremap_wc ioremap_wc
extern void __iomem *ioremap_wt(resource_size_t offset, unsigned long size);
+#define ioremap_wt ioremap_wt
extern bool is_early_ioremap_ptep(pte_t *ptep);
@@ -365,6 +362,9 @@ extern bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,
#define IO_SPACE_LIMIT 0xffff
+#include <asm-generic/io.h>
+#undef PCI_IOBASE
+
#ifdef CONFIG_MTRR
extern int __must_check arch_phys_wc_index(int handle);
#define arch_phys_wc_index arch_phys_wc_index
@@ -381,4 +381,12 @@ extern void arch_io_free_memtype_wc(resource_size_t start, resource_size_t size)
#define arch_io_reserve_memtype_wc arch_io_reserve_memtype_wc
#endif
+extern bool arch_memremap_can_ram_remap(resource_size_t offset,
+ unsigned long size,
+ unsigned long flags);
+#define arch_memremap_can_ram_remap arch_memremap_can_ram_remap
+
+extern bool phys_mem_access_encrypted(unsigned long phys_addr,
+ unsigned long size);
+
#endif /* _ASM_X86_IO_H */
diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h
index 793869879464..fca144a104e4 100644
--- a/arch/x86/include/asm/iommu.h
+++ b/arch/x86/include/asm/iommu.h
@@ -6,6 +6,8 @@ extern int force_iommu, no_iommu;
extern int iommu_detected;
extern int iommu_pass_through;
+int x86_dma_supported(struct device *dev, u64 mask);
+
/* 10 seconds */
#define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000)
diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h
index 16d3fa211962..9958ceea2fa3 100644
--- a/arch/x86/include/asm/irq.h
+++ b/arch/x86/include/asm/irq.h
@@ -29,7 +29,6 @@ struct irq_desc;
#include <linux/cpumask.h>
extern int check_irq_vectors_for_cpu_disable(void);
extern void fixup_irqs(void);
-extern void irq_force_complete_move(struct irq_desc *desc);
#endif
#ifdef CONFIG_HAVE_KVM
@@ -43,10 +42,6 @@ extern bool handle_irq(struct irq_desc *desc, struct pt_regs *regs);
extern __visible unsigned int do_IRQ(struct pt_regs *regs);
-/* Interrupt vector management */
-extern DECLARE_BITMAP(used_vectors, NR_VECTORS);
-extern int vector_used_by_percpu_irq(unsigned int vector);
-
extern void init_ISA_irqs(void);
#ifdef CONFIG_X86_LOCAL_APIC
diff --git a/arch/x86/include/asm/irq_remapping.h b/arch/x86/include/asm/irq_remapping.h
index a210eba2727c..023b4a9fc846 100644
--- a/arch/x86/include/asm/irq_remapping.h
+++ b/arch/x86/include/asm/irq_remapping.h
@@ -55,7 +55,8 @@ extern struct irq_domain *
irq_remapping_get_irq_domain(struct irq_alloc_info *info);
/* Create PCI MSI/MSIx irqdomain, use @parent as the parent irqdomain. */
-extern struct irq_domain *arch_create_msi_irq_domain(struct irq_domain *parent);
+extern struct irq_domain *
+arch_create_remap_msi_irq_domain(struct irq_domain *par, const char *n, int id);
/* Get parent irqdomain for interrupt remapping irqdomain */
static inline struct irq_domain *arch_get_ir_parent_domain(void)
diff --git a/arch/x86/include/asm/irq_vectors.h b/arch/x86/include/asm/irq_vectors.h
index 6ca9fd6234e1..aaf8d28b5d00 100644
--- a/arch/x86/include/asm/irq_vectors.h
+++ b/arch/x86/include/asm/irq_vectors.h
@@ -83,7 +83,6 @@
*/
#define X86_PLATFORM_IPI_VECTOR 0xf7
-#define POSTED_INTR_WAKEUP_VECTOR 0xf1
/*
* IRQ work vector:
*/
@@ -98,6 +97,8 @@
/* Vector for KVM to deliver posted interrupt IPI */
#ifdef CONFIG_HAVE_KVM
#define POSTED_INTR_VECTOR 0xf2
+#define POSTED_INTR_WAKEUP_VECTOR 0xf1
+#define POSTED_INTR_NESTED_VECTOR 0xf0
#endif
/*
diff --git a/arch/x86/include/asm/irq_work.h b/arch/x86/include/asm/irq_work.h
index f70604125286..ddbb8ea0f5a9 100644
--- a/arch/x86/include/asm/irq_work.h
+++ b/arch/x86/include/asm/irq_work.h
@@ -3,9 +3,17 @@
#include <asm/cpufeature.h>
+#ifdef CONFIG_X86_LOCAL_APIC
static inline bool arch_irq_work_has_interrupt(void)
{
return boot_cpu_has(X86_FEATURE_APIC);
}
+extern void arch_irq_work_raise(void);
+#else
+static inline bool arch_irq_work_has_interrupt(void)
+{
+ return false;
+}
+#endif
#endif /* _ASM_IRQ_WORK_H */
diff --git a/arch/x86/include/asm/kexec.h b/arch/x86/include/asm/kexec.h
index 70ef205489f0..942c1f444da8 100644
--- a/arch/x86/include/asm/kexec.h
+++ b/arch/x86/include/asm/kexec.h
@@ -147,7 +147,8 @@ unsigned long
relocate_kernel(unsigned long indirection_page,
unsigned long page_list,
unsigned long start_address,
- unsigned int preserve_context);
+ unsigned int preserve_context,
+ unsigned int sme_active);
#endif
#define ARCH_HAS_KIMAGE_ARCH
@@ -207,6 +208,14 @@ struct kexec_entry64_regs {
uint64_t r15;
uint64_t rip;
};
+
+extern int arch_kexec_post_alloc_pages(void *vaddr, unsigned int pages,
+ gfp_t gfp);
+#define arch_kexec_post_alloc_pages arch_kexec_post_alloc_pages
+
+extern void arch_kexec_pre_free_pages(void *vaddr, unsigned int pages);
+#define arch_kexec_pre_free_pages arch_kexec_pre_free_pages
+
#endif
typedef void crash_vmclear_fn(void);
diff --git a/arch/x86/include/asm/kprobes.h b/arch/x86/include/asm/kprobes.h
index 34b984c60790..6cf65437b5e5 100644
--- a/arch/x86/include/asm/kprobes.h
+++ b/arch/x86/include/asm/kprobes.h
@@ -52,10 +52,10 @@ typedef u8 kprobe_opcode_t;
#define flush_insn_slot(p) do { } while (0)
/* optinsn template addresses */
-extern __visible kprobe_opcode_t optprobe_template_entry;
-extern __visible kprobe_opcode_t optprobe_template_val;
-extern __visible kprobe_opcode_t optprobe_template_call;
-extern __visible kprobe_opcode_t optprobe_template_end;
+extern __visible kprobe_opcode_t optprobe_template_entry[];
+extern __visible kprobe_opcode_t optprobe_template_val[];
+extern __visible kprobe_opcode_t optprobe_template_call[];
+extern __visible kprobe_opcode_t optprobe_template_end[];
#define MAX_OPTIMIZED_LENGTH (MAX_INSN_SIZE + RELATIVE_ADDR_SIZE)
#define MAX_OPTINSN_SIZE \
(((unsigned long)&optprobe_template_end - \
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index 722d0e568863..fa2558e12024 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -23,6 +23,7 @@ struct x86_exception {
u16 error_code;
bool nested_page_fault;
u64 address; /* cr2 or nested page fault gpa */
+ u8 async_page_fault;
};
/*
@@ -218,8 +219,8 @@ struct x86_emulate_ops {
struct x86_instruction_info *info,
enum x86_intercept_stage stage);
- void (*get_cpuid)(struct x86_emulate_ctxt *ctxt,
- u32 *eax, u32 *ebx, u32 *ecx, u32 *edx);
+ bool (*get_cpuid)(struct x86_emulate_ctxt *ctxt, u32 *eax, u32 *ebx,
+ u32 *ecx, u32 *edx, bool check_limit);
void (*set_nmi_mask)(struct x86_emulate_ctxt *ctxt, bool masked);
unsigned (*get_hflags)(struct x86_emulate_ctxt *ctxt);
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 695605eb1dfb..c73e493adf07 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -48,43 +48,45 @@
#define KVM_IRQCHIP_NUM_PINS KVM_IOAPIC_NUM_PINS
/* x86-specific vcpu->requests bit members */
-#define KVM_REQ_MIGRATE_TIMER 8
-#define KVM_REQ_REPORT_TPR_ACCESS 9
-#define KVM_REQ_TRIPLE_FAULT 10
-#define KVM_REQ_MMU_SYNC 11
-#define KVM_REQ_CLOCK_UPDATE 12
-#define KVM_REQ_EVENT 14
-#define KVM_REQ_APF_HALT 15
-#define KVM_REQ_STEAL_UPDATE 16
-#define KVM_REQ_NMI 17
-#define KVM_REQ_PMU 18
-#define KVM_REQ_PMI 19
-#define KVM_REQ_SMI 20
-#define KVM_REQ_MASTERCLOCK_UPDATE 21
-#define KVM_REQ_MCLOCK_INPROGRESS (22 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
-#define KVM_REQ_SCAN_IOAPIC (23 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
-#define KVM_REQ_GLOBAL_CLOCK_UPDATE 24
-#define KVM_REQ_APIC_PAGE_RELOAD (25 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
-#define KVM_REQ_HV_CRASH 26
-#define KVM_REQ_IOAPIC_EOI_EXIT 27
-#define KVM_REQ_HV_RESET 28
-#define KVM_REQ_HV_EXIT 29
-#define KVM_REQ_HV_STIMER 30
+#define KVM_REQ_MIGRATE_TIMER KVM_ARCH_REQ(0)
+#define KVM_REQ_REPORT_TPR_ACCESS KVM_ARCH_REQ(1)
+#define KVM_REQ_TRIPLE_FAULT KVM_ARCH_REQ(2)
+#define KVM_REQ_MMU_SYNC KVM_ARCH_REQ(3)
+#define KVM_REQ_CLOCK_UPDATE KVM_ARCH_REQ(4)
+#define KVM_REQ_EVENT KVM_ARCH_REQ(6)
+#define KVM_REQ_APF_HALT KVM_ARCH_REQ(7)
+#define KVM_REQ_STEAL_UPDATE KVM_ARCH_REQ(8)
+#define KVM_REQ_NMI KVM_ARCH_REQ(9)
+#define KVM_REQ_PMU KVM_ARCH_REQ(10)
+#define KVM_REQ_PMI KVM_ARCH_REQ(11)
+#define KVM_REQ_SMI KVM_ARCH_REQ(12)
+#define KVM_REQ_MASTERCLOCK_UPDATE KVM_ARCH_REQ(13)
+#define KVM_REQ_MCLOCK_INPROGRESS \
+ KVM_ARCH_REQ_FLAGS(14, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
+#define KVM_REQ_SCAN_IOAPIC \
+ KVM_ARCH_REQ_FLAGS(15, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
+#define KVM_REQ_GLOBAL_CLOCK_UPDATE KVM_ARCH_REQ(16)
+#define KVM_REQ_APIC_PAGE_RELOAD \
+ KVM_ARCH_REQ_FLAGS(17, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
+#define KVM_REQ_HV_CRASH KVM_ARCH_REQ(18)
+#define KVM_REQ_IOAPIC_EOI_EXIT KVM_ARCH_REQ(19)
+#define KVM_REQ_HV_RESET KVM_ARCH_REQ(20)
+#define KVM_REQ_HV_EXIT KVM_ARCH_REQ(21)
+#define KVM_REQ_HV_STIMER KVM_ARCH_REQ(22)
#define CR0_RESERVED_BITS \
(~(unsigned long)(X86_CR0_PE | X86_CR0_MP | X86_CR0_EM | X86_CR0_TS \
| X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM \
| X86_CR0_NW | X86_CR0_CD | X86_CR0_PG))
-#define CR3_L_MODE_RESERVED_BITS 0xFFFFFF0000000000ULL
#define CR3_PCID_INVD BIT_64(63)
#define CR4_RESERVED_BITS \
(~(unsigned long)(X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE\
| X86_CR4_PSE | X86_CR4_PAE | X86_CR4_MCE \
| X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_PCIDE \
| X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_FSGSBASE \
- | X86_CR4_OSXMMEXCPT | X86_CR4_VMXE | X86_CR4_SMAP \
- | X86_CR4_PKE))
+ | X86_CR4_OSXMMEXCPT | X86_CR4_LA57 | X86_CR4_VMXE \
+ | X86_CR4_SMAP | X86_CR4_PKE))
#define CR8_RESERVED_BITS (~(unsigned long)X86_CR8_TPR)
@@ -201,7 +203,6 @@ enum {
#define PFERR_GUEST_PAGE_MASK (1ULL << PFERR_GUEST_PAGE_BIT)
#define PFERR_NESTED_GUEST_PAGE (PFERR_GUEST_PAGE_MASK | \
- PFERR_USER_MASK | \
PFERR_WRITE_MASK | \
PFERR_PRESENT_MASK)
@@ -254,7 +255,8 @@ union kvm_mmu_page_role {
unsigned cr0_wp:1;
unsigned smep_andnot_wp:1;
unsigned smap_andnot_wp:1;
- unsigned :8;
+ unsigned ad_disabled:1;
+ unsigned :7;
/*
* This is left at the top of the word so that
@@ -313,15 +315,17 @@ struct kvm_pio_request {
int size;
};
+#define PT64_ROOT_MAX_LEVEL 5
+
struct rsvd_bits_validate {
- u64 rsvd_bits_mask[2][4];
+ u64 rsvd_bits_mask[2][PT64_ROOT_MAX_LEVEL];
u64 bad_mt_xwr;
};
/*
- * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
- * 32-bit). The kvm_mmu structure abstracts the details of the current mmu
- * mode.
+ * x86 supports 4 paging modes (5-level 64-bit, 4-level 64-bit, 3-level 32-bit,
+ * and 2-level 32-bit). The kvm_mmu structure abstracts the details of the
+ * current mmu mode.
*/
struct kvm_mmu {
void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long root);
@@ -458,10 +462,12 @@ struct kvm_vcpu_hv_synic {
DECLARE_BITMAP(auto_eoi_bitmap, 256);
DECLARE_BITMAP(vec_bitmap, 256);
bool active;
+ bool dont_zero_synic_pages;
};
/* Hyper-V per vcpu emulation context */
struct kvm_vcpu_hv {
+ u32 vp_index;
u64 hv_vapic;
s64 runtime_offset;
struct kvm_vcpu_hv_synic synic;
@@ -486,6 +492,7 @@ struct kvm_vcpu_arch {
unsigned long cr4;
unsigned long cr4_guest_owned_bits;
unsigned long cr8;
+ u32 pkru;
u32 hflags;
u64 efer;
u64 apic_base;
@@ -541,10 +548,11 @@ struct kvm_vcpu_arch {
struct kvm_queued_exception {
bool pending;
+ bool injected;
bool has_error_code;
- bool reinject;
u8 nr;
u32 error_code;
+ u8 nested_apf;
} exception;
struct kvm_queued_interrupt {
@@ -645,6 +653,9 @@ struct kvm_vcpu_arch {
u64 msr_val;
u32 id;
bool send_user_only;
+ u32 host_apf_reason;
+ unsigned long nested_apf_token;
+ bool delivery_as_pf_vmexit;
} apf;
/* OSVW MSRs (AMD only) */
@@ -676,8 +687,12 @@ struct kvm_vcpu_arch {
int pending_ioapic_eoi;
int pending_external_vector;
- /* GPA available (AMD only) */
+ /* GPA available */
bool gpa_available;
+ gpa_t gpa_val;
+
+ /* be preempted when it's in kernel-mode(cpl=0) */
+ bool preempted_in_kernel;
};
struct kvm_lpage_info {
@@ -799,6 +814,7 @@ struct kvm_arch {
int audit_point;
#endif
+ bool backwards_tsc_observed;
bool boot_vcpu_runs_old_kvmclock;
u32 bsp_vcpu_id;
@@ -935,7 +951,6 @@ struct kvm_x86_ops {
void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg);
unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
- u32 (*get_pkru)(struct kvm_vcpu *vcpu);
void (*tlb_flush)(struct kvm_vcpu *vcpu);
@@ -948,9 +963,7 @@ struct kvm_x86_ops {
unsigned char *hypercall_addr);
void (*set_irq)(struct kvm_vcpu *vcpu);
void (*set_nmi)(struct kvm_vcpu *vcpu);
- void (*queue_exception)(struct kvm_vcpu *vcpu, unsigned nr,
- bool has_error_code, u32 error_code,
- bool reinject);
+ void (*queue_exception)(struct kvm_vcpu *vcpu);
void (*cancel_injection)(struct kvm_vcpu *vcpu);
int (*interrupt_allowed)(struct kvm_vcpu *vcpu);
int (*nmi_allowed)(struct kvm_vcpu *vcpu);
@@ -959,7 +972,7 @@ struct kvm_x86_ops {
void (*enable_nmi_window)(struct kvm_vcpu *vcpu);
void (*enable_irq_window)(struct kvm_vcpu *vcpu);
void (*update_cr8_intercept)(struct kvm_vcpu *vcpu, int tpr, int irr);
- bool (*get_enable_apicv)(void);
+ bool (*get_enable_apicv)(struct kvm_vcpu *vcpu);
void (*refresh_apicv_exec_ctrl)(struct kvm_vcpu *vcpu);
void (*hwapic_irr_update)(struct kvm_vcpu *vcpu, int max_irr);
void (*hwapic_isr_update)(struct kvm_vcpu *vcpu, int isr);
@@ -969,7 +982,7 @@ struct kvm_x86_ops {
void (*deliver_posted_interrupt)(struct kvm_vcpu *vcpu, int vector);
int (*sync_pir_to_irr)(struct kvm_vcpu *vcpu);
int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
- int (*get_tdp_level)(void);
+ int (*get_tdp_level)(struct kvm_vcpu *vcpu);
u64 (*get_mt_mask)(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio);
int (*get_lpage_level)(void);
bool (*rdtscp_supported)(void);
@@ -1069,7 +1082,7 @@ void kvm_mmu_init_vm(struct kvm *kvm);
void kvm_mmu_uninit_vm(struct kvm *kvm);
void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask,
u64 dirty_mask, u64 nx_mask, u64 x_mask, u64 p_mask,
- u64 acc_track_mask);
+ u64 acc_track_mask, u64 me_mask);
void kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
void kvm_mmu_slot_remove_write_access(struct kvm *kvm,
@@ -1287,20 +1300,6 @@ static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code)
kvm_queue_exception_e(vcpu, GP_VECTOR, error_code);
}
-static inline u64 get_canonical(u64 la)
-{
- return ((int64_t)la << 16) >> 16;
-}
-
-static inline bool is_noncanonical_address(u64 la)
-{
-#ifdef CONFIG_X86_64
- return get_canonical(la) != la;
-#else
- return false;
-#endif
-}
-
#define TSS_IOPB_BASE_OFFSET 0x66
#define TSS_BASE_SIZE 0x68
#define TSS_IOPB_SIZE (65536 / 8)
@@ -1365,8 +1364,6 @@ int kvm_arch_interrupt_allowed(struct kvm_vcpu *vcpu);
int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
void kvm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event);
void kvm_vcpu_reload_apic_access_page(struct kvm_vcpu *vcpu);
-void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm,
- unsigned long address);
void kvm_define_shared_msr(unsigned index, u32 msr);
int kvm_set_shared_msr(unsigned index, u64 val, u64 mask);
diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
index bc62e7cbf1b1..59ad3d132353 100644
--- a/arch/x86/include/asm/kvm_para.h
+++ b/arch/x86/include/asm/kvm_para.h
@@ -88,7 +88,7 @@ static inline long kvm_hypercall4(unsigned int nr, unsigned long p1,
bool kvm_para_available(void);
unsigned int kvm_arch_para_features(void);
void __init kvm_guest_init(void);
-void kvm_async_pf_task_wait(u32 token);
+void kvm_async_pf_task_wait(u32 token, int interrupt_kernel);
void kvm_async_pf_task_wake(u32 token);
u32 kvm_read_and_reset_pf_reason(void);
extern void kvm_disable_steal_time(void);
@@ -103,7 +103,7 @@ static inline void kvm_spinlock_init(void)
#else /* CONFIG_KVM_GUEST */
#define kvm_guest_init() do {} while (0)
-#define kvm_async_pf_task_wait(T) do {} while(0)
+#define kvm_async_pf_task_wait(T, I) do {} while(0)
#define kvm_async_pf_task_wake(T) do {} while(0)
static inline bool kvm_para_available(void)
diff --git a/arch/x86/include/asm/lguest.h b/arch/x86/include/asm/lguest.h
deleted file mode 100644
index 73d0c9b92087..000000000000
--- a/arch/x86/include/asm/lguest.h
+++ /dev/null
@@ -1,91 +0,0 @@
-#ifndef _ASM_X86_LGUEST_H
-#define _ASM_X86_LGUEST_H
-
-#define GDT_ENTRY_LGUEST_CS 10
-#define GDT_ENTRY_LGUEST_DS 11
-#define LGUEST_CS (GDT_ENTRY_LGUEST_CS * 8)
-#define LGUEST_DS (GDT_ENTRY_LGUEST_DS * 8)
-
-#ifndef __ASSEMBLY__
-#include <asm/desc.h>
-
-#define GUEST_PL 1
-
-/* Page for Switcher text itself, then two pages per cpu */
-#define SWITCHER_TEXT_PAGES (1)
-#define SWITCHER_STACK_PAGES (2 * nr_cpu_ids)
-#define TOTAL_SWITCHER_PAGES (SWITCHER_TEXT_PAGES + SWITCHER_STACK_PAGES)
-
-/* Where we map the Switcher, in both Host and Guest. */
-extern unsigned long switcher_addr;
-
-/* Found in switcher.S */
-extern unsigned long default_idt_entries[];
-
-/* Declarations for definitions in arch/x86/lguest/head_32.S */
-extern char lguest_noirq_iret[];
-extern const char lgstart_cli[], lgend_cli[];
-extern const char lgstart_pushf[], lgend_pushf[];
-
-extern void lguest_iret(void);
-extern void lguest_init(void);
-
-struct lguest_regs {
- /* Manually saved part. */
- unsigned long eax, ebx, ecx, edx;
- unsigned long esi, edi, ebp;
- unsigned long gs;
- unsigned long fs, ds, es;
- unsigned long trapnum, errcode;
- /* Trap pushed part */
- unsigned long eip;
- unsigned long cs;
- unsigned long eflags;
- unsigned long esp;
- unsigned long ss;
-};
-
-/* This is a guest-specific page (mapped ro) into the guest. */
-struct lguest_ro_state {
- /* Host information we need to restore when we switch back. */
- u32 host_cr3;
- struct desc_ptr host_idt_desc;
- struct desc_ptr host_gdt_desc;
- u32 host_sp;
-
- /* Fields which are used when guest is running. */
- struct desc_ptr guest_idt_desc;
- struct desc_ptr guest_gdt_desc;
- struct x86_hw_tss guest_tss;
- struct desc_struct guest_idt[IDT_ENTRIES];
- struct desc_struct guest_gdt[GDT_ENTRIES];
-};
-
-struct lg_cpu_arch {
- /* The GDT entries copied into lguest_ro_state when running. */
- struct desc_struct gdt[GDT_ENTRIES];
-
- /* The IDT entries: some copied into lguest_ro_state when running. */
- struct desc_struct idt[IDT_ENTRIES];
-
- /* The address of the last guest-visible pagefault (ie. cr2). */
- unsigned long last_pagefault;
-};
-
-static inline void lguest_set_ts(void)
-{
- u32 cr0;
-
- cr0 = read_cr0();
- if (!(cr0 & 8))
- write_cr0(cr0 | 8);
-}
-
-/* Full 4G segment descriptors, suitable for CS and DS. */
-#define FULL_EXEC_SEGMENT \
- ((struct desc_struct)GDT_ENTRY_INIT(0xc09b, 0, 0xfffff))
-#define FULL_SEGMENT ((struct desc_struct)GDT_ENTRY_INIT(0xc093, 0, 0xfffff))
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* _ASM_X86_LGUEST_H */
diff --git a/arch/x86/include/asm/lguest_hcall.h b/arch/x86/include/asm/lguest_hcall.h
deleted file mode 100644
index 6c119cfae218..000000000000
--- a/arch/x86/include/asm/lguest_hcall.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/* Architecture specific portion of the lguest hypercalls */
-#ifndef _ASM_X86_LGUEST_HCALL_H
-#define _ASM_X86_LGUEST_HCALL_H
-
-#define LHCALL_FLUSH_ASYNC 0
-#define LHCALL_LGUEST_INIT 1
-#define LHCALL_SHUTDOWN 2
-#define LHCALL_NEW_PGTABLE 4
-#define LHCALL_FLUSH_TLB 5
-#define LHCALL_LOAD_IDT_ENTRY 6
-#define LHCALL_SET_STACK 7
-#define LHCALL_SET_CLOCKEVENT 9
-#define LHCALL_HALT 10
-#define LHCALL_SET_PMD 13
-#define LHCALL_SET_PTE 14
-#define LHCALL_SET_PGD 15
-#define LHCALL_LOAD_TLS 16
-#define LHCALL_LOAD_GDT_ENTRY 18
-#define LHCALL_SEND_INTERRUPTS 19
-
-#define LGUEST_TRAP_ENTRY 0x1F
-
-/* Argument number 3 to LHCALL_LGUEST_SHUTDOWN */
-#define LGUEST_SHUTDOWN_POWEROFF 1
-#define LGUEST_SHUTDOWN_RESTART 2
-
-#ifndef __ASSEMBLY__
-#include <asm/hw_irq.h>
-
-/*G:030
- * But first, how does our Guest contact the Host to ask for privileged
- * operations? There are two ways: the direct way is to make a "hypercall",
- * to make requests of the Host Itself.
- *
- * Our hypercall mechanism uses the highest unused trap code (traps 32 and
- * above are used by real hardware interrupts). Seventeen hypercalls are
- * available: the hypercall number is put in the %eax register, and the
- * arguments (when required) are placed in %ebx, %ecx, %edx and %esi.
- * If a return value makes sense, it's returned in %eax.
- *
- * Grossly invalid calls result in Sudden Death at the hands of the vengeful
- * Host, rather than returning failure. This reflects Winston Churchill's
- * definition of a gentleman: "someone who is only rude intentionally".
- */
-static inline unsigned long
-hcall(unsigned long call,
- unsigned long arg1, unsigned long arg2, unsigned long arg3,
- unsigned long arg4)
-{
- /* "int" is the Intel instruction to trigger a trap. */
- asm volatile("int $" __stringify(LGUEST_TRAP_ENTRY)
- /* The call in %eax (aka "a") might be overwritten */
- : "=a"(call)
- /* The arguments are in %eax, %ebx, %ecx, %edx & %esi */
- : "a"(call), "b"(arg1), "c"(arg2), "d"(arg3), "S"(arg4)
- /* "memory" means this might write somewhere in memory.
- * This isn't true for all calls, but it's safe to tell
- * gcc that it might happen so it doesn't get clever. */
- : "memory");
- return call;
-}
-/*:*/
-
-/* Can't use our min() macro here: needs to be a constant */
-#define LGUEST_IRQS (NR_IRQS < 32 ? NR_IRQS: 32)
-
-#define LHCALL_RING_SIZE 64
-struct hcall_args {
- /* These map directly onto eax/ebx/ecx/edx/esi in struct lguest_regs */
- unsigned long arg0, arg1, arg2, arg3, arg4;
-};
-
-#endif /* !__ASSEMBLY__ */
-#endif /* _ASM_X86_LGUEST_HCALL_H */
diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index 3f9a3d2a5209..8edac1de2e35 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -187,7 +187,6 @@ struct mca_msr_regs {
extern struct mce_vendor_flags mce_flags;
-extern struct mca_config mca_cfg;
extern struct mca_msr_regs msr_ops;
enum mce_notifier_prios {
@@ -285,10 +284,6 @@ int mce_notify_irq(void);
DECLARE_PER_CPU(struct mce, injectm);
-extern void register_mce_write_callback(ssize_t (*)(struct file *filp,
- const char __user *ubuf,
- size_t usize, loff_t *off));
-
/* Disable CMCI/polling for MCA bank claimed by firmware */
extern void mce_disable_bank(int bank);
diff --git a/arch/x86/include/asm/mem_encrypt.h b/arch/x86/include/asm/mem_encrypt.h
new file mode 100644
index 000000000000..6a77c63540f7
--- /dev/null
+++ b/arch/x86/include/asm/mem_encrypt.h
@@ -0,0 +1,80 @@
+/*
+ * AMD Memory Encryption Support
+ *
+ * Copyright (C) 2016 Advanced Micro Devices, Inc.
+ *
+ * Author: Tom Lendacky <thomas.lendacky@amd.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __X86_MEM_ENCRYPT_H__
+#define __X86_MEM_ENCRYPT_H__
+
+#ifndef __ASSEMBLY__
+
+#include <linux/init.h>
+
+#include <asm/bootparam.h>
+
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+
+extern u64 sme_me_mask;
+
+void sme_encrypt_execute(unsigned long encrypted_kernel_vaddr,
+ unsigned long decrypted_kernel_vaddr,
+ unsigned long kernel_len,
+ unsigned long encryption_wa,
+ unsigned long encryption_pgd);
+
+void __init sme_early_encrypt(resource_size_t paddr,
+ unsigned long size);
+void __init sme_early_decrypt(resource_size_t paddr,
+ unsigned long size);
+
+void __init sme_map_bootdata(char *real_mode_data);
+void __init sme_unmap_bootdata(char *real_mode_data);
+
+void __init sme_early_init(void);
+
+void __init sme_encrypt_kernel(void);
+void __init sme_enable(struct boot_params *bp);
+
+/* Architecture __weak replacement functions */
+void __init mem_encrypt_init(void);
+
+void swiotlb_set_mem_attributes(void *vaddr, unsigned long size);
+
+#else /* !CONFIG_AMD_MEM_ENCRYPT */
+
+#define sme_me_mask 0ULL
+
+static inline void __init sme_early_encrypt(resource_size_t paddr,
+ unsigned long size) { }
+static inline void __init sme_early_decrypt(resource_size_t paddr,
+ unsigned long size) { }
+
+static inline void __init sme_map_bootdata(char *real_mode_data) { }
+static inline void __init sme_unmap_bootdata(char *real_mode_data) { }
+
+static inline void __init sme_early_init(void) { }
+
+static inline void __init sme_encrypt_kernel(void) { }
+static inline void __init sme_enable(struct boot_params *bp) { }
+
+#endif /* CONFIG_AMD_MEM_ENCRYPT */
+
+/*
+ * The __sme_pa() and __sme_pa_nodebug() macros are meant for use when
+ * writing to or comparing values from the cr3 register. Having the
+ * encryption mask set in cr3 enables the PGD entry to be encrypted and
+ * avoid special case handling of PGD allocations.
+ */
+#define __sme_pa(x) (__pa(x) | sme_me_mask)
+#define __sme_pa_nodebug(x) (__pa_nodebug(x) | sme_me_mask)
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __X86_MEM_ENCRYPT_H__ */
diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h
index f9813b6d8b80..bb8c597c2248 100644
--- a/arch/x86/include/asm/mmu.h
+++ b/arch/x86/include/asm/mmu.h
@@ -3,12 +3,28 @@
#include <linux/spinlock.h>
#include <linux/mutex.h>
+#include <linux/atomic.h>
/*
- * The x86 doesn't have a mmu context, but
- * we put the segment information here.
+ * x86 has arch-specific MMU state beyond what lives in mm_struct.
*/
typedef struct {
+ /*
+ * ctx_id uniquely identifies this mm_struct. A ctx_id will never
+ * be reused, and zero is not a valid ctx_id.
+ */
+ u64 ctx_id;
+
+ /*
+ * Any code that needs to do any sort of TLB flushing for this
+ * mm will first make its changes to the page tables, then
+ * increment tlb_gen, then flush. This lets the low-level
+ * flushing code keep track of what needs flushing.
+ *
+ * This is not used on Xen PV.
+ */
+ atomic64_t tlb_gen;
+
#ifdef CONFIG_MODIFY_LDT_SYSCALL
struct ldt_struct *ldt;
#endif
@@ -37,12 +53,11 @@ typedef struct {
#endif
} mm_context_t;
-#ifdef CONFIG_SMP
+#define INIT_MM_CONTEXT(mm) \
+ .context = { \
+ .ctx_id = 1, \
+ }
+
void leave_mm(int cpu);
-#else
-static inline void leave_mm(int cpu)
-{
-}
-#endif
#endif /* _ASM_X86_MMU_H */
diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
index 68b329d77b3a..3c856a15b98e 100644
--- a/arch/x86/include/asm/mmu_context.h
+++ b/arch/x86/include/asm/mmu_context.h
@@ -12,6 +12,9 @@
#include <asm/tlbflush.h>
#include <asm/paravirt.h>
#include <asm/mpx.h>
+
+extern atomic64_t last_mm_ctx_id;
+
#ifndef CONFIG_PARAVIRT
static inline void paravirt_activate_mm(struct mm_struct *prev,
struct mm_struct *next)
@@ -47,7 +50,7 @@ struct ldt_struct {
* allocations, but it's not worth trying to optimize.
*/
struct desc_struct *entries;
- unsigned int size;
+ unsigned int nr_entries;
};
/*
@@ -87,27 +90,50 @@ static inline void load_mm_ldt(struct mm_struct *mm)
*/
if (unlikely(ldt))
- set_ldt(ldt->entries, ldt->size);
+ set_ldt(ldt->entries, ldt->nr_entries);
else
clear_LDT();
#else
clear_LDT();
#endif
-
- DEBUG_LOCKS_WARN_ON(preemptible());
}
-static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
+static inline void switch_ldt(struct mm_struct *prev, struct mm_struct *next)
{
-#ifdef CONFIG_SMP
- if (this_cpu_read(cpu_tlbstate.state) == TLBSTATE_OK)
- this_cpu_write(cpu_tlbstate.state, TLBSTATE_LAZY);
+#ifdef CONFIG_MODIFY_LDT_SYSCALL
+ /*
+ * Load the LDT if either the old or new mm had an LDT.
+ *
+ * An mm will never go from having an LDT to not having an LDT. Two
+ * mms never share an LDT, so we don't gain anything by checking to
+ * see whether the LDT changed. There's also no guarantee that
+ * prev->context.ldt actually matches LDTR, but, if LDTR is non-NULL,
+ * then prev->context.ldt will also be non-NULL.
+ *
+ * If we really cared, we could optimize the case where prev == next
+ * and we're exiting lazy mode. Most of the time, if this happens,
+ * we don't actually need to reload LDTR, but modify_ldt() is mostly
+ * used by legacy code and emulators where we don't need this level of
+ * performance.
+ *
+ * This uses | instead of || because it generates better code.
+ */
+ if (unlikely((unsigned long)prev->context.ldt |
+ (unsigned long)next->context.ldt))
+ load_mm_ldt(next);
#endif
+
+ DEBUG_LOCKS_WARN_ON(preemptible());
}
+void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk);
+
static inline int init_new_context(struct task_struct *tsk,
struct mm_struct *mm)
{
+ mm->context.ctx_id = atomic64_inc_return(&last_mm_ctx_id);
+ atomic64_set(&mm->context.tlb_gen, 0);
+
#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
if (cpu_feature_enabled(X86_FEATURE_OSPKE)) {
/* pkey 0 is the default and always allocated */
@@ -116,9 +142,7 @@ static inline int init_new_context(struct task_struct *tsk,
mm->context.execute_only_pkey = -1;
}
#endif
- init_new_context_ldt(tsk, mm);
-
- return 0;
+ return init_new_context_ldt(tsk, mm);
}
static inline void destroy_context(struct mm_struct *mm)
{
@@ -220,18 +244,6 @@ static inline int vma_pkey(struct vm_area_struct *vma)
}
#endif
-static inline bool __pkru_allows_pkey(u16 pkey, bool write)
-{
- u32 pkru = read_pkru();
-
- if (!__pkru_allows_read(pkru, pkey))
- return false;
- if (write && !__pkru_allows_write(pkru, pkey))
- return false;
-
- return true;
-}
-
/*
* We only want to enforce protection keys on the current process
* because we effectively have no access to PKRU for other
@@ -268,4 +280,50 @@ static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
return __pkru_allows_pkey(vma_pkey(vma), write);
}
+/*
+ * If PCID is on, ASID-aware code paths put the ASID+1 into the PCID
+ * bits. This serves two purposes. It prevents a nasty situation in
+ * which PCID-unaware code saves CR3, loads some other value (with PCID
+ * == 0), and then restores CR3, thus corrupting the TLB for ASID 0 if
+ * the saved ASID was nonzero. It also means that any bugs involving
+ * loading a PCID-enabled CR3 with CR4.PCIDE off will trigger
+ * deterministically.
+ */
+
+static inline unsigned long build_cr3(struct mm_struct *mm, u16 asid)
+{
+ if (static_cpu_has(X86_FEATURE_PCID)) {
+ VM_WARN_ON_ONCE(asid > 4094);
+ return __sme_pa(mm->pgd) | (asid + 1);
+ } else {
+ VM_WARN_ON_ONCE(asid != 0);
+ return __sme_pa(mm->pgd);
+ }
+}
+
+static inline unsigned long build_cr3_noflush(struct mm_struct *mm, u16 asid)
+{
+ VM_WARN_ON_ONCE(asid > 4094);
+ return __sme_pa(mm->pgd) | (asid + 1) | CR3_NOFLUSH;
+}
+
+/*
+ * This can be used from process context to figure out what the value of
+ * CR3 is without needing to do a (slow) __read_cr3().
+ *
+ * It's intended to be used for code like KVM that sneakily changes CR3
+ * and needs to restore it. It needs to be used very carefully.
+ */
+static inline unsigned long __get_current_cr3_fast(void)
+{
+ unsigned long cr3 = build_cr3(this_cpu_read(cpu_tlbstate.loaded_mm),
+ this_cpu_read(cpu_tlbstate.loaded_mm_asid));
+
+ /* For now, be very restrictive about when this can be called. */
+ VM_WARN_ON(in_nmi() || preemptible());
+
+ VM_BUG_ON(cr3 != __read_cr3());
+ return cr3;
+}
+
#endif /* _ASM_X86_MMU_CONTEXT_H */
diff --git a/arch/x86/include/asm/module.h b/arch/x86/include/asm/module.h
index e3b7819caeef..9eb7c718aaf8 100644
--- a/arch/x86/include/asm/module.h
+++ b/arch/x86/include/asm/module.h
@@ -2,6 +2,15 @@
#define _ASM_X86_MODULE_H
#include <asm-generic/module.h>
+#include <asm/orc_types.h>
+
+struct mod_arch_specific {
+#ifdef CONFIG_ORC_UNWINDER
+ unsigned int num_orcs;
+ int *orc_unwind_ip;
+ struct orc_entry *orc_unwind;
+#endif
+};
#ifdef CONFIG_X86_64
/* X86_64 does not define MODULE_PROC_FAMILY */
diff --git a/arch/x86/include/asm/mpspec.h b/arch/x86/include/asm/mpspec.h
index 831eb7895535..c471ca1f9412 100644
--- a/arch/x86/include/asm/mpspec.h
+++ b/arch/x86/include/asm/mpspec.h
@@ -86,7 +86,6 @@ static inline void e820__memblock_alloc_reserved_mpc_new(void) { }
#endif
int generic_processor_info(int apicid, int version);
-int __generic_processor_info(int apicid, int version, bool enabled);
#define PHYSID_ARRAY_SIZE BITS_TO_LONGS(MAX_LOCAL_APIC)
diff --git a/arch/x86/include/asm/mpx.h b/arch/x86/include/asm/mpx.h
index a0d662be4c5b..7d7404756bb4 100644
--- a/arch/x86/include/asm/mpx.h
+++ b/arch/x86/include/asm/mpx.h
@@ -73,6 +73,9 @@ static inline void mpx_mm_init(struct mm_struct *mm)
}
void mpx_notify_unmap(struct mm_struct *mm, struct vm_area_struct *vma,
unsigned long start, unsigned long end);
+
+unsigned long mpx_unmapped_area_check(unsigned long addr, unsigned long len,
+ unsigned long flags);
#else
static inline siginfo_t *mpx_generate_siginfo(struct pt_regs *regs)
{
@@ -94,6 +97,12 @@ static inline void mpx_notify_unmap(struct mm_struct *mm,
unsigned long start, unsigned long end)
{
}
+
+static inline unsigned long mpx_unmapped_area_check(unsigned long addr,
+ unsigned long len, unsigned long flags)
+{
+ return addr;
+}
#endif /* CONFIG_X86_INTEL_MPX */
#endif /* _ASM_X86_MPX_H */
diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h
index d5acc27ed1cc..530f448fddaf 100644
--- a/arch/x86/include/asm/mshyperv.h
+++ b/arch/x86/include/asm/mshyperv.h
@@ -3,6 +3,8 @@
#include <linux/types.h>
#include <linux/atomic.h>
+#include <linux/nmi.h>
+#include <asm/io.h>
#include <asm/hyperv.h>
/*
@@ -28,6 +30,8 @@ struct ms_hyperv_info {
u32 features;
u32 misc_features;
u32 hints;
+ u32 max_vp_index;
+ u32 max_lp_index;
};
extern struct ms_hyperv_info ms_hyperv;
@@ -136,7 +140,6 @@ static inline void vmbus_signal_eom(struct hv_message *msg, u32 old_msg_type)
}
}
-#define hv_get_current_tick(tick) rdmsrl(HV_X64_MSR_TIME_REF_COUNT, tick)
#define hv_init_timer(timer, tick) wrmsrl(timer, tick)
#define hv_init_timer_config(config, val) wrmsrl(config, val)
@@ -169,12 +172,154 @@ void hv_remove_crash_handler(void);
#if IS_ENABLED(CONFIG_HYPERV)
extern struct clocksource *hyperv_cs;
+extern void *hv_hypercall_pg;
+
+static inline u64 hv_do_hypercall(u64 control, void *input, void *output)
+{
+ u64 input_address = input ? virt_to_phys(input) : 0;
+ u64 output_address = output ? virt_to_phys(output) : 0;
+ u64 hv_status;
+
+#ifdef CONFIG_X86_64
+ if (!hv_hypercall_pg)
+ return U64_MAX;
+
+ __asm__ __volatile__("mov %4, %%r8\n"
+ "call *%5"
+ : "=a" (hv_status), ASM_CALL_CONSTRAINT,
+ "+c" (control), "+d" (input_address)
+ : "r" (output_address), "m" (hv_hypercall_pg)
+ : "cc", "memory", "r8", "r9", "r10", "r11");
+#else
+ u32 input_address_hi = upper_32_bits(input_address);
+ u32 input_address_lo = lower_32_bits(input_address);
+ u32 output_address_hi = upper_32_bits(output_address);
+ u32 output_address_lo = lower_32_bits(output_address);
+
+ if (!hv_hypercall_pg)
+ return U64_MAX;
+
+ __asm__ __volatile__("call *%7"
+ : "=A" (hv_status),
+ "+c" (input_address_lo), ASM_CALL_CONSTRAINT
+ : "A" (control),
+ "b" (input_address_hi),
+ "D"(output_address_hi), "S"(output_address_lo),
+ "m" (hv_hypercall_pg)
+ : "cc", "memory");
+#endif /* !x86_64 */
+ return hv_status;
+}
+
+#define HV_HYPERCALL_RESULT_MASK GENMASK_ULL(15, 0)
+#define HV_HYPERCALL_FAST_BIT BIT(16)
+#define HV_HYPERCALL_VARHEAD_OFFSET 17
+#define HV_HYPERCALL_REP_COMP_OFFSET 32
+#define HV_HYPERCALL_REP_COMP_MASK GENMASK_ULL(43, 32)
+#define HV_HYPERCALL_REP_START_OFFSET 48
+#define HV_HYPERCALL_REP_START_MASK GENMASK_ULL(59, 48)
+
+/* Fast hypercall with 8 bytes of input and no output */
+static inline u64 hv_do_fast_hypercall8(u16 code, u64 input1)
+{
+ u64 hv_status, control = (u64)code | HV_HYPERCALL_FAST_BIT;
+
+#ifdef CONFIG_X86_64
+ {
+ __asm__ __volatile__("call *%4"
+ : "=a" (hv_status), ASM_CALL_CONSTRAINT,
+ "+c" (control), "+d" (input1)
+ : "m" (hv_hypercall_pg)
+ : "cc", "r8", "r9", "r10", "r11");
+ }
+#else
+ {
+ u32 input1_hi = upper_32_bits(input1);
+ u32 input1_lo = lower_32_bits(input1);
+
+ __asm__ __volatile__ ("call *%5"
+ : "=A"(hv_status),
+ "+c"(input1_lo),
+ ASM_CALL_CONSTRAINT
+ : "A" (control),
+ "b" (input1_hi),
+ "m" (hv_hypercall_pg)
+ : "cc", "edi", "esi");
+ }
+#endif
+ return hv_status;
+}
+
+/*
+ * Rep hypercalls. Callers of this functions are supposed to ensure that
+ * rep_count and varhead_size comply with Hyper-V hypercall definition.
+ */
+static inline u64 hv_do_rep_hypercall(u16 code, u16 rep_count, u16 varhead_size,
+ void *input, void *output)
+{
+ u64 control = code;
+ u64 status;
+ u16 rep_comp;
+
+ control |= (u64)varhead_size << HV_HYPERCALL_VARHEAD_OFFSET;
+ control |= (u64)rep_count << HV_HYPERCALL_REP_COMP_OFFSET;
+
+ do {
+ status = hv_do_hypercall(control, input, output);
+ if ((status & HV_HYPERCALL_RESULT_MASK) != HV_STATUS_SUCCESS)
+ return status;
+
+ /* Bits 32-43 of status have 'Reps completed' data. */
+ rep_comp = (status & HV_HYPERCALL_REP_COMP_MASK) >>
+ HV_HYPERCALL_REP_COMP_OFFSET;
+
+ control &= ~HV_HYPERCALL_REP_START_MASK;
+ control |= (u64)rep_comp << HV_HYPERCALL_REP_START_OFFSET;
+
+ touch_nmi_watchdog();
+ } while (rep_comp < rep_count);
+
+ return status;
+}
+
+/*
+ * Hypervisor's notion of virtual processor ID is different from
+ * Linux' notion of CPU ID. This information can only be retrieved
+ * in the context of the calling CPU. Setup a map for easy access
+ * to this information.
+ */
+extern u32 *hv_vp_index;
+extern u32 hv_max_vp_index;
+
+/**
+ * hv_cpu_number_to_vp_number() - Map CPU to VP.
+ * @cpu_number: CPU number in Linux terms
+ *
+ * This function returns the mapping between the Linux processor
+ * number and the hypervisor's virtual processor number, useful
+ * in making hypercalls and such that talk about specific
+ * processors.
+ *
+ * Return: Virtual processor number in Hyper-V terms
+ */
+static inline int hv_cpu_number_to_vp_number(int cpu_number)
+{
+ return hv_vp_index[cpu_number];
+}
void hyperv_init(void);
+void hyperv_setup_mmu_ops(void);
+void hyper_alloc_mmu(void);
void hyperv_report_panic(struct pt_regs *regs);
bool hv_is_hypercall_page_setup(void);
void hyperv_cleanup(void);
-#endif
+#else /* CONFIG_HYPERV */
+static inline void hyperv_init(void) {}
+static inline bool hv_is_hypercall_page_setup(void) { return false; }
+static inline void hyperv_cleanup(void) {}
+static inline void hyperv_setup_mmu_ops(void) {}
+#endif /* CONFIG_HYPERV */
+
#ifdef CONFIG_HYPERV_TSCPAGE
struct ms_hyperv_tsc_page *hv_get_tsc_page(void);
static inline u64 hv_read_tsc_page(const struct ms_hyperv_tsc_page *tsc_pg)
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 673f9ac50f6d..17f5c12e1afd 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -137,6 +137,8 @@
#define DEBUGCTLMSR_BTS_OFF_OS (1UL << 9)
#define DEBUGCTLMSR_BTS_OFF_USR (1UL << 10)
#define DEBUGCTLMSR_FREEZE_LBRS_ON_PMI (1UL << 11)
+#define DEBUGCTLMSR_FREEZE_IN_SMM_BIT 14
+#define DEBUGCTLMSR_FREEZE_IN_SMM (1UL << DEBUGCTLMSR_FREEZE_IN_SMM_BIT)
#define MSR_PEBS_FRONTEND 0x000003f7
@@ -249,9 +251,13 @@
#define HWP_MIN_PERF(x) (x & 0xff)
#define HWP_MAX_PERF(x) ((x & 0xff) << 8)
#define HWP_DESIRED_PERF(x) ((x & 0xff) << 16)
-#define HWP_ENERGY_PERF_PREFERENCE(x) ((x & 0xff) << 24)
-#define HWP_ACTIVITY_WINDOW(x) ((x & 0xff3) << 32)
-#define HWP_PACKAGE_CONTROL(x) ((x & 0x1) << 42)
+#define HWP_ENERGY_PERF_PREFERENCE(x) (((unsigned long long) x & 0xff) << 24)
+#define HWP_EPP_PERFORMANCE 0x00
+#define HWP_EPP_BALANCE_PERFORMANCE 0x80
+#define HWP_EPP_BALANCE_POWERSAVE 0xC0
+#define HWP_EPP_POWERSAVE 0xFF
+#define HWP_ACTIVITY_WINDOW(x) ((unsigned long long)(x & 0xff3) << 32)
+#define HWP_PACKAGE_CONTROL(x) ((unsigned long long)(x & 0x1) << 42)
/* IA32_HWP_STATUS */
#define HWP_GUARANTEED_CHANGE(x) (x & 0x1)
@@ -350,6 +356,8 @@
#define MSR_K8_TOP_MEM1 0xc001001a
#define MSR_K8_TOP_MEM2 0xc001001d
#define MSR_K8_SYSCFG 0xc0010010
+#define MSR_K8_SYSCFG_MEM_ENCRYPT_BIT 23
+#define MSR_K8_SYSCFG_MEM_ENCRYPT BIT_ULL(MSR_K8_SYSCFG_MEM_ENCRYPT_BIT)
#define MSR_K8_INT_PENDING_MSG 0xc0010055
/* C1E active bits in int pending message */
#define K8_INTP_C1E_ACTIVE_MASK 0x18000000
@@ -420,6 +428,8 @@
#define MSR_IA32_TSC_ADJUST 0x0000003b
#define MSR_IA32_BNDCFGS 0x00000d90
+#define MSR_IA32_BNDCFGS_RSVD 0x00000ffc
+
#define MSR_IA32_XSS 0x00000da0
#define FEATURE_CONTROL_LOCKED (1<<0)
@@ -474,9 +484,11 @@
#define MSR_MISC_PWR_MGMT 0x000001aa
#define MSR_IA32_ENERGY_PERF_BIAS 0x000001b0
-#define ENERGY_PERF_BIAS_PERFORMANCE 0
-#define ENERGY_PERF_BIAS_NORMAL 6
-#define ENERGY_PERF_BIAS_POWERSAVE 15
+#define ENERGY_PERF_BIAS_PERFORMANCE 0
+#define ENERGY_PERF_BIAS_BALANCE_PERFORMANCE 4
+#define ENERGY_PERF_BIAS_NORMAL 6
+#define ENERGY_PERF_BIAS_BALANCE_POWERSAVE 8
+#define ENERGY_PERF_BIAS_POWERSAVE 15
#define MSR_IA32_PACKAGE_THERM_STATUS 0x000001b1
diff --git a/arch/x86/include/asm/orc_lookup.h b/arch/x86/include/asm/orc_lookup.h
new file mode 100644
index 000000000000..91c8d868424d
--- /dev/null
+++ b/arch/x86/include/asm/orc_lookup.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2017 Josh Poimboeuf <jpoimboe@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _ORC_LOOKUP_H
+#define _ORC_LOOKUP_H
+
+/*
+ * This is a lookup table for speeding up access to the .orc_unwind table.
+ * Given an input address offset, the corresponding lookup table entry
+ * specifies a subset of the .orc_unwind table to search.
+ *
+ * Each block represents the end of the previous range and the start of the
+ * next range. An extra block is added to give the last range an end.
+ *
+ * The block size should be a power of 2 to avoid a costly 'div' instruction.
+ *
+ * A block size of 256 was chosen because it roughly doubles unwinder
+ * performance while only adding ~5% to the ORC data footprint.
+ */
+#define LOOKUP_BLOCK_ORDER 8
+#define LOOKUP_BLOCK_SIZE (1 << LOOKUP_BLOCK_ORDER)
+
+#ifndef LINKER_SCRIPT
+
+extern unsigned int orc_lookup[];
+extern unsigned int orc_lookup_end[];
+
+#define LOOKUP_START_IP (unsigned long)_stext
+#define LOOKUP_STOP_IP (unsigned long)_etext
+
+#endif /* LINKER_SCRIPT */
+
+#endif /* _ORC_LOOKUP_H */
diff --git a/arch/x86/include/asm/orc_types.h b/arch/x86/include/asm/orc_types.h
new file mode 100644
index 000000000000..9c9dc579bd7d
--- /dev/null
+++ b/arch/x86/include/asm/orc_types.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2017 Josh Poimboeuf <jpoimboe@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _ORC_TYPES_H
+#define _ORC_TYPES_H
+
+#include <linux/types.h>
+#include <linux/compiler.h>
+
+/*
+ * The ORC_REG_* registers are base registers which are used to find other
+ * registers on the stack.
+ *
+ * ORC_REG_PREV_SP, also known as DWARF Call Frame Address (CFA), is the
+ * address of the previous frame: the caller's SP before it called the current
+ * function.
+ *
+ * ORC_REG_UNDEFINED means the corresponding register's value didn't change in
+ * the current frame.
+ *
+ * The most commonly used base registers are SP and BP -- which the previous SP
+ * is usually based on -- and PREV_SP and UNDEFINED -- which the previous BP is
+ * usually based on.
+ *
+ * The rest of the base registers are needed for special cases like entry code
+ * and GCC realigned stacks.
+ */
+#define ORC_REG_UNDEFINED 0
+#define ORC_REG_PREV_SP 1
+#define ORC_REG_DX 2
+#define ORC_REG_DI 3
+#define ORC_REG_BP 4
+#define ORC_REG_SP 5
+#define ORC_REG_R10 6
+#define ORC_REG_R13 7
+#define ORC_REG_BP_INDIRECT 8
+#define ORC_REG_SP_INDIRECT 9
+#define ORC_REG_MAX 15
+
+/*
+ * ORC_TYPE_CALL: Indicates that sp_reg+sp_offset resolves to PREV_SP (the
+ * caller's SP right before it made the call). Used for all callable
+ * functions, i.e. all C code and all callable asm functions.
+ *
+ * ORC_TYPE_REGS: Used in entry code to indicate that sp_reg+sp_offset points
+ * to a fully populated pt_regs from a syscall, interrupt, or exception.
+ *
+ * ORC_TYPE_REGS_IRET: Used in entry code to indicate that sp_reg+sp_offset
+ * points to the iret return frame.
+ *
+ * The UNWIND_HINT macros are used only for the unwind_hint struct. They
+ * aren't used in struct orc_entry due to size and complexity constraints.
+ * Objtool converts them to real types when it converts the hints to orc
+ * entries.
+ */
+#define ORC_TYPE_CALL 0
+#define ORC_TYPE_REGS 1
+#define ORC_TYPE_REGS_IRET 2
+#define UNWIND_HINT_TYPE_SAVE 3
+#define UNWIND_HINT_TYPE_RESTORE 4
+
+#ifndef __ASSEMBLY__
+/*
+ * This struct is more or less a vastly simplified version of the DWARF Call
+ * Frame Information standard. It contains only the necessary parts of DWARF
+ * CFI, simplified for ease of access by the in-kernel unwinder. It tells the
+ * unwinder how to find the previous SP and BP (and sometimes entry regs) on
+ * the stack for a given code address. Each instance of the struct corresponds
+ * to one or more code locations.
+ */
+struct orc_entry {
+ s16 sp_offset;
+ s16 bp_offset;
+ unsigned sp_reg:4;
+ unsigned bp_reg:4;
+ unsigned type:2;
+} __packed;
+
+/*
+ * This struct is used by asm and inline asm code to manually annotate the
+ * location of registers on the stack for the ORC unwinder.
+ *
+ * Type can be either ORC_TYPE_* or UNWIND_HINT_TYPE_*.
+ */
+struct unwind_hint {
+ u32 ip;
+ s16 sp_offset;
+ u8 sp_reg;
+ u8 type;
+};
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ORC_TYPES_H */
diff --git a/arch/x86/include/asm/page_64.h b/arch/x86/include/asm/page_64.h
index b4a0d43248cf..b50df06ad251 100644
--- a/arch/x86/include/asm/page_64.h
+++ b/arch/x86/include/asm/page_64.h
@@ -51,6 +51,10 @@ static inline void clear_page(void *page)
void copy_page(void *to, void *from);
+#ifdef CONFIG_X86_MCE
+#define arch_unmap_kpfn arch_unmap_kpfn
+#endif
+
#endif /* !__ASSEMBLY__ */
#ifdef CONFIG_X86_VSYSCALL_EMULATION
diff --git a/arch/x86/include/asm/page_types.h b/arch/x86/include/asm/page_types.h
index 7bd0099384ca..b98ed9d14630 100644
--- a/arch/x86/include/asm/page_types.h
+++ b/arch/x86/include/asm/page_types.h
@@ -3,6 +3,7 @@
#include <linux/const.h>
#include <linux/types.h>
+#include <linux/mem_encrypt.h>
/* PAGE_SHIFT determines the page size */
#define PAGE_SHIFT 12
@@ -15,7 +16,7 @@
#define PUD_PAGE_SIZE (_AC(1, UL) << PUD_SHIFT)
#define PUD_PAGE_MASK (~(PUD_PAGE_SIZE-1))
-#define __PHYSICAL_MASK ((phys_addr_t)((1ULL << __PHYSICAL_MASK_SHIFT) - 1))
+#define __PHYSICAL_MASK ((phys_addr_t)(__sme_clr((1ULL << __PHYSICAL_MASK_SHIFT) - 1)))
#define __VIRTUAL_MASK ((1UL << __VIRTUAL_MASK_SHIFT) - 1)
/* Cast *PAGE_MASK to a signed type so that it is sign-extended if
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 55fa56fe4e45..12deec722cf0 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -61,7 +61,7 @@ static inline void write_cr2(unsigned long x)
PVOP_VCALL1(pv_mmu_ops.write_cr2, x);
}
-static inline unsigned long read_cr3(void)
+static inline unsigned long __read_cr3(void)
{
return PVOP_CALL0(unsigned long, pv_mmu_ops.read_cr3);
}
@@ -71,11 +71,6 @@ static inline void write_cr3(unsigned long x)
PVOP_VCALL1(pv_mmu_ops.write_cr3, x);
}
-static inline unsigned long __read_cr4(void)
-{
- return PVOP_CALL0(unsigned long, pv_cpu_ops.read_cr4);
-}
-
static inline void __write_cr4(unsigned long x)
{
PVOP_VCALL1(pv_cpu_ops.write_cr4, x);
@@ -118,7 +113,7 @@ static inline u64 paravirt_read_msr(unsigned msr)
static inline void paravirt_write_msr(unsigned msr,
unsigned low, unsigned high)
{
- return PVOP_VCALL3(pv_cpu_ops.write_msr, msr, low, high);
+ PVOP_VCALL3(pv_cpu_ops.write_msr, msr, low, high);
}
static inline u64 paravirt_read_msr_safe(unsigned msr, int *err)
@@ -228,10 +223,6 @@ static inline void set_ldt(const void *addr, unsigned entries)
{
PVOP_VCALL2(pv_cpu_ops.set_ldt, addr, entries);
}
-static inline void store_idt(struct desc_ptr *dtr)
-{
- PVOP_VCALL1(pv_cpu_ops.store_idt, dtr);
-}
static inline unsigned long paravirt_store_tr(void)
{
return PVOP_CALL0(unsigned long, pv_cpu_ops.store_tr);
@@ -312,11 +303,9 @@ static inline void __flush_tlb_single(unsigned long addr)
}
static inline void flush_tlb_others(const struct cpumask *cpumask,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end)
+ const struct flush_tlb_info *info)
{
- PVOP_VCALL4(pv_mmu_ops.flush_tlb_others, cpumask, mm, start, end);
+ PVOP_VCALL2(pv_mmu_ops.flush_tlb_others, cpumask, info);
}
static inline int paravirt_pgd_alloc(struct mm_struct *mm)
@@ -367,12 +356,6 @@ static inline void paravirt_release_p4d(unsigned long pfn)
PVOP_VCALL1(pv_mmu_ops.release_p4d, pfn);
}
-static inline void pte_update(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
-{
- PVOP_VCALL3(pv_mmu_ops.pte_update, mm, addr, ptep);
-}
-
static inline pte_t __pte(pteval_t val)
{
pteval_t ret;
@@ -474,28 +457,6 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
PVOP_VCALL4(pv_mmu_ops.set_pte_at, mm, addr, ptep, pte.pte);
}
-static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
- pmd_t *pmdp, pmd_t pmd)
-{
- if (sizeof(pmdval_t) > sizeof(long))
- /* 5 arg words */
- pv_mmu_ops.set_pmd_at(mm, addr, pmdp, pmd);
- else
- PVOP_VCALL4(pv_mmu_ops.set_pmd_at, mm, addr, pmdp,
- native_pmd_val(pmd));
-}
-
-static inline void set_pud_at(struct mm_struct *mm, unsigned long addr,
- pud_t *pudp, pud_t pud)
-{
- if (sizeof(pudval_t) > sizeof(long))
- /* 5 arg words */
- pv_mmu_ops.set_pud_at(mm, addr, pudp, pud);
- else
- PVOP_VCALL4(pv_mmu_ops.set_pud_at, mm, addr, pudp,
- native_pud_val(pud));
-}
-
static inline void set_pmd(pmd_t *pmdp, pmd_t pmd)
{
pmdval_t val = native_pmd_val(pmd);
@@ -962,11 +923,6 @@ extern void default_banner(void);
#define GET_CR2_INTO_RAX \
call PARA_INDIRECT(pv_mmu_ops+PV_MMU_read_cr2)
-#define PARAVIRT_ADJUST_EXCEPTION_FRAME \
- PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_adjust_exception_frame), \
- CLBR_NONE, \
- call PARA_INDIRECT(pv_irq_ops+PV_IRQ_adjust_exception_frame))
-
#define USERGS_SYSRET64 \
PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_usergs_sysret64), \
CLBR_NONE, \
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 7465d6fe336f..280d94c36dad 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -51,6 +51,7 @@ struct mm_struct;
struct desc_struct;
struct task_struct;
struct cpumask;
+struct flush_tlb_info;
/*
* Wrapper type for pointers to code which uses the non-standard
@@ -83,7 +84,7 @@ struct pv_init_ops {
*/
unsigned (*patch)(u8 type, u16 clobber, void *insnbuf,
unsigned long addr, unsigned len);
-};
+} __no_randomize_layout;
struct pv_lazy_ops {
@@ -91,12 +92,12 @@ struct pv_lazy_ops {
void (*enter)(void);
void (*leave)(void);
void (*flush)(void);
-};
+} __no_randomize_layout;
struct pv_time_ops {
unsigned long long (*sched_clock)(void);
unsigned long long (*steal_clock)(int cpu);
-};
+} __no_randomize_layout;
struct pv_cpu_ops {
/* hooks for various privileged instructions */
@@ -106,7 +107,6 @@ struct pv_cpu_ops {
unsigned long (*read_cr0)(void);
void (*write_cr0)(unsigned long);
- unsigned long (*read_cr4)(void);
void (*write_cr4)(unsigned long);
#ifdef CONFIG_X86_64
@@ -118,8 +118,6 @@ struct pv_cpu_ops {
void (*load_tr_desc)(void);
void (*load_gdt)(const struct desc_ptr *);
void (*load_idt)(const struct desc_ptr *);
- /* store_gdt has been removed. */
- void (*store_idt)(struct desc_ptr *);
void (*set_ldt)(const void *desc, unsigned entries);
unsigned long (*store_tr)(void);
void (*load_tls)(struct thread_struct *t, unsigned int cpu);
@@ -175,7 +173,7 @@ struct pv_cpu_ops {
void (*start_context_switch)(struct task_struct *prev);
void (*end_context_switch)(struct task_struct *next);
-};
+} __no_randomize_layout;
struct pv_irq_ops {
/*
@@ -195,10 +193,7 @@ struct pv_irq_ops {
void (*safe_halt)(void);
void (*halt)(void);
-#ifdef CONFIG_X86_64
- void (*adjust_exception_frame)(void);
-#endif
-};
+} __no_randomize_layout;
struct pv_mmu_ops {
unsigned long (*read_cr2)(void);
@@ -223,9 +218,7 @@ struct pv_mmu_ops {
void (*flush_tlb_kernel)(void);
void (*flush_tlb_single)(unsigned long addr);
void (*flush_tlb_others)(const struct cpumask *cpus,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end);
+ const struct flush_tlb_info *info);
/* Hooks for allocating and freeing a pagetable top-level */
int (*pgd_alloc)(struct mm_struct *mm);
@@ -249,12 +242,6 @@ struct pv_mmu_ops {
void (*set_pte_at)(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pteval);
void (*set_pmd)(pmd_t *pmdp, pmd_t pmdval);
- void (*set_pmd_at)(struct mm_struct *mm, unsigned long addr,
- pmd_t *pmdp, pmd_t pmdval);
- void (*set_pud_at)(struct mm_struct *mm, unsigned long addr,
- pud_t *pudp, pud_t pudval);
- void (*pte_update)(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep);
pte_t (*ptep_modify_prot_start)(struct mm_struct *mm, unsigned long addr,
pte_t *ptep);
@@ -306,7 +293,7 @@ struct pv_mmu_ops {
an mfn. We can tell which is which from the index. */
void (*set_fixmap)(unsigned /* enum fixed_addresses */ idx,
phys_addr_t phys, pgprot_t flags);
-};
+} __no_randomize_layout;
struct arch_spinlock;
#ifdef CONFIG_SMP
@@ -323,7 +310,7 @@ struct pv_lock_ops {
void (*kick)(int cpu);
struct paravirt_callee_save vcpu_is_preempted;
-};
+} __no_randomize_layout;
/* This contains all the paravirt structures: we get a convenient
* number for each function using the offset which we use to indicate
@@ -335,7 +322,7 @@ struct paravirt_patch_template {
struct pv_irq_ops pv_irq_ops;
struct pv_mmu_ops pv_mmu_ops;
struct pv_lock_ops pv_lock_ops;
-};
+} __no_randomize_layout;
extern struct pv_info pv_info;
extern struct pv_init_ops pv_init_ops;
@@ -472,8 +459,8 @@ int paravirt_disable_iospace(void);
*/
#ifdef CONFIG_X86_32
#define PVOP_VCALL_ARGS \
- unsigned long __eax = __eax, __edx = __edx, __ecx = __ecx; \
- register void *__sp asm("esp")
+ unsigned long __eax = __eax, __edx = __edx, __ecx = __ecx;
+
#define PVOP_CALL_ARGS PVOP_VCALL_ARGS
#define PVOP_CALL_ARG1(x) "a" ((unsigned long)(x))
@@ -493,8 +480,8 @@ int paravirt_disable_iospace(void);
/* [re]ax isn't an arg, but the return val */
#define PVOP_VCALL_ARGS \
unsigned long __edi = __edi, __esi = __esi, \
- __edx = __edx, __ecx = __ecx, __eax = __eax; \
- register void *__sp asm("rsp")
+ __edx = __edx, __ecx = __ecx, __eax = __eax;
+
#define PVOP_CALL_ARGS PVOP_VCALL_ARGS
#define PVOP_CALL_ARG1(x) "D" ((unsigned long)(x))
@@ -545,7 +532,7 @@ int paravirt_disable_iospace(void);
asm volatile(pre \
paravirt_alt(PARAVIRT_CALL) \
post \
- : call_clbr, "+r" (__sp) \
+ : call_clbr, ASM_CALL_CONSTRAINT \
: paravirt_type(op), \
paravirt_clobber(clbr), \
##__VA_ARGS__ \
@@ -555,7 +542,7 @@ int paravirt_disable_iospace(void);
asm volatile(pre \
paravirt_alt(PARAVIRT_CALL) \
post \
- : call_clbr, "+r" (__sp) \
+ : call_clbr, ASM_CALL_CONSTRAINT \
: paravirt_type(op), \
paravirt_clobber(clbr), \
##__VA_ARGS__ \
@@ -582,7 +569,7 @@ int paravirt_disable_iospace(void);
asm volatile(pre \
paravirt_alt(PARAVIRT_CALL) \
post \
- : call_clbr, "+r" (__sp) \
+ : call_clbr, ASM_CALL_CONSTRAINT \
: paravirt_type(op), \
paravirt_clobber(clbr), \
##__VA_ARGS__ \
diff --git a/arch/x86/include/asm/pat.h b/arch/x86/include/asm/pat.h
index 0b1ff4c1c14e..fffb2794dd89 100644
--- a/arch/x86/include/asm/pat.h
+++ b/arch/x86/include/asm/pat.h
@@ -7,6 +7,7 @@
bool pat_enabled(void);
void pat_disable(const char *reason);
extern void pat_init(void);
+extern void init_cache_modes(void);
extern int reserve_memtype(u64 start, u64 end,
enum page_cache_mode req_pcm, enum page_cache_mode *ret_pcm);
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index f513cc231151..473a7295ab10 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -77,14 +77,8 @@ static inline bool is_vmd(struct pci_bus *bus)
extern unsigned int pcibios_assign_all_busses(void);
extern int pci_legacy_init(void);
-# ifdef CONFIG_ACPI
-# define x86_default_pci_init pci_acpi_init
-# else
-# define x86_default_pci_init pci_legacy_init
-# endif
#else
-# define pcibios_assign_all_busses() 0
-# define x86_default_pci_init NULL
+static inline int pcibios_assign_all_busses(void) { return 0; }
#endif
extern unsigned long pci_mem_start;
diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
index 50d35e3185f5..c8821bab938f 100644
--- a/arch/x86/include/asm/pgtable-3level.h
+++ b/arch/x86/include/asm/pgtable-3level.h
@@ -212,4 +212,51 @@ static inline pud_t native_pudp_get_and_clear(pud_t *pudp)
#define __pte_to_swp_entry(pte) ((swp_entry_t){ (pte).pte_high })
#define __swp_entry_to_pte(x) ((pte_t){ { .pte_high = (x).val } })
+#define gup_get_pte gup_get_pte
+/*
+ * WARNING: only to be used in the get_user_pages_fast() implementation.
+ *
+ * With get_user_pages_fast(), we walk down the pagetables without taking
+ * any locks. For this we would like to load the pointers atomically,
+ * but that is not possible (without expensive cmpxchg8b) on PAE. What
+ * we do have is the guarantee that a PTE will only either go from not
+ * present to present, or present to not present or both -- it will not
+ * switch to a completely different present page without a TLB flush in
+ * between; something that we are blocking by holding interrupts off.
+ *
+ * Setting ptes from not present to present goes:
+ *
+ * ptep->pte_high = h;
+ * smp_wmb();
+ * ptep->pte_low = l;
+ *
+ * And present to not present goes:
+ *
+ * ptep->pte_low = 0;
+ * smp_wmb();
+ * ptep->pte_high = 0;
+ *
+ * We must ensure here that the load of pte_low sees 'l' iff pte_high
+ * sees 'h'. We load pte_high *after* loading pte_low, which ensures we
+ * don't see an older value of pte_high. *Then* we recheck pte_low,
+ * which ensures that we haven't picked up a changed pte high. We might
+ * have gotten rubbish values from pte_low and pte_high, but we are
+ * guaranteed that pte_low will not have the present bit set *unless*
+ * it is 'l'. Because get_user_pages_fast() only operates on present ptes
+ * we're safe.
+ */
+static inline pte_t gup_get_pte(pte_t *ptep)
+{
+ pte_t pte;
+
+ do {
+ pte.pte_low = ptep->pte_low;
+ smp_rmb();
+ pte.pte_high = ptep->pte_high;
+ smp_rmb();
+ } while (unlikely(pte.pte_low != ptep->pte_low));
+
+ return pte;
+}
+
#endif /* _ASM_X86_PGTABLE_3LEVEL_H */
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index f5af95a0c6b8..b714934512b3 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -1,6 +1,7 @@
#ifndef _ASM_X86_PGTABLE_H
#define _ASM_X86_PGTABLE_H
+#include <linux/mem_encrypt.h>
#include <asm/page.h>
#include <asm/pgtable_types.h>
@@ -13,9 +14,18 @@
cachemode2protval(_PAGE_CACHE_MODE_UC_MINUS))) \
: (prot))
+/*
+ * Macros to add or remove encryption attribute
+ */
+#define pgprot_encrypted(prot) __pgprot(__sme_set(pgprot_val(prot)))
+#define pgprot_decrypted(prot) __pgprot(__sme_clr(pgprot_val(prot)))
+
#ifndef __ASSEMBLY__
#include <asm/x86_init.h>
+extern pgd_t early_top_pgt[PTRS_PER_PGD];
+int __init __early_make_pgtable(unsigned long address, pmdval_t pmd);
+
void ptdump_walk_pgd_level(struct seq_file *m, pgd_t *pgd);
void ptdump_walk_pgd_level_checkwx(void);
@@ -38,13 +48,13 @@ extern struct list_head pgd_list;
extern struct mm_struct *pgd_page_get_mm(struct page *page);
+extern pmdval_t early_pmd_flags;
+
#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
#else /* !CONFIG_PARAVIRT */
#define set_pte(ptep, pte) native_set_pte(ptep, pte)
#define set_pte_at(mm, addr, ptep, pte) native_set_pte_at(mm, addr, ptep, pte)
-#define set_pmd_at(mm, addr, pmdp, pmd) native_set_pmd_at(mm, addr, pmdp, pmd)
-#define set_pud_at(mm, addr, pudp, pud) native_set_pud_at(mm, addr, pudp, pud)
#define set_pte_atomic(ptep, pte) \
native_set_pte_atomic(ptep, pte)
@@ -75,8 +85,6 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page);
#define pte_clear(mm, addr, ptep) native_pte_clear(mm, addr, ptep)
#define pmd_clear(pmd) native_pmd_clear(pmd)
-#define pte_update(mm, addr, ptep) do { } while (0)
-
#define pgd_val(x) native_pgd_val(x)
#define __pgd(x) native_make_pgd(x)
@@ -195,6 +203,11 @@ static inline unsigned long p4d_pfn(p4d_t p4d)
return (p4d_val(p4d) & p4d_pfn_mask(p4d)) >> PAGE_SHIFT;
}
+static inline unsigned long pgd_pfn(pgd_t pgd)
+{
+ return (pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT;
+}
+
static inline int p4d_large(p4d_t p4d)
{
/* No 512 GiB pages yet */
@@ -244,6 +257,11 @@ static inline int pud_devmap(pud_t pud)
return 0;
}
#endif
+
+static inline int pgd_devmap(pgd_t pgd)
+{
+ return 0;
+}
#endif
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
@@ -699,8 +717,7 @@ static inline unsigned long pmd_page_vaddr(pmd_t pmd)
* Currently stuck as a macro due to indirect forward reference to
* linux/mmzone.h's __section_mem_map_addr() definition:
*/
-#define pmd_page(pmd) \
- pfn_to_page((pmd_val(pmd) & pmd_pfn_mask(pmd)) >> PAGE_SHIFT)
+#define pmd_page(pmd) pfn_to_page(pmd_pfn(pmd))
/*
* the pmd page can be thought of an array like this: pmd_t[PTRS_PER_PMD]
@@ -768,8 +785,7 @@ static inline unsigned long pud_page_vaddr(pud_t pud)
* Currently stuck as a macro due to indirect forward reference to
* linux/mmzone.h's __section_mem_map_addr() definition:
*/
-#define pud_page(pud) \
- pfn_to_page((pud_val(pud) & pud_pfn_mask(pud)) >> PAGE_SHIFT)
+#define pud_page(pud) pfn_to_page(pud_pfn(pud))
/* Find an entry in the second-level page table.. */
static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
@@ -819,8 +835,7 @@ static inline unsigned long p4d_page_vaddr(p4d_t p4d)
* Currently stuck as a macro due to indirect forward reference to
* linux/mmzone.h's __section_mem_map_addr() definition:
*/
-#define p4d_page(p4d) \
- pfn_to_page((p4d_val(p4d) & p4d_pfn_mask(p4d)) >> PAGE_SHIFT)
+#define p4d_page(p4d) pfn_to_page(p4d_pfn(p4d))
/* Find an entry in the third-level page table.. */
static inline pud_t *pud_offset(p4d_t *p4d, unsigned long address)
@@ -854,7 +869,7 @@ static inline unsigned long pgd_page_vaddr(pgd_t pgd)
* Currently stuck as a macro due to indirect forward reference to
* linux/mmzone.h's __section_mem_map_addr() definition:
*/
-#define pgd_page(pgd) pfn_to_page(pgd_val(pgd) >> PAGE_SHIFT)
+#define pgd_page(pgd) pfn_to_page(pgd_pfn(pgd))
/* to find an entry in a page-table-directory. */
static inline p4d_t *p4d_offset(pgd_t *pgd, unsigned long address)
@@ -917,7 +932,7 @@ extern pgd_t trampoline_pgd_entry;
static inline void __meminit init_trampoline_default(void)
{
/* Default trampoline pgd value */
- trampoline_pgd_entry = init_level4_pgt[pgd_index(__PAGE_OFFSET)];
+ trampoline_pgd_entry = init_top_pgt[pgd_index(__PAGE_OFFSET)];
}
# ifdef CONFIG_RANDOMIZE_MEMORY
void __meminit init_trampoline(void);
@@ -960,31 +975,18 @@ static inline void native_set_pte_at(struct mm_struct *mm, unsigned long addr,
native_set_pte(ptep, pte);
}
-static inline void native_set_pmd_at(struct mm_struct *mm, unsigned long addr,
- pmd_t *pmdp , pmd_t pmd)
+static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
+ pmd_t *pmdp, pmd_t pmd)
{
native_set_pmd(pmdp, pmd);
}
-static inline void native_set_pud_at(struct mm_struct *mm, unsigned long addr,
- pud_t *pudp, pud_t pud)
+static inline void set_pud_at(struct mm_struct *mm, unsigned long addr,
+ pud_t *pudp, pud_t pud)
{
native_set_pud(pudp, pud);
}
-#ifndef CONFIG_PARAVIRT
-/*
- * Rules for using pte_update - it must be called after any PTE update which
- * has not been done using the set_pte / clear_pte interfaces. It is used by
- * shadow mode hypervisors to resynchronize the shadow page tables. Kernel PTE
- * updates should either be sets, clears, or set_pte_atomic for P->P
- * transitions, which means this hook should only be called for user PTEs.
- * This hook implies a P->P protection or access change has taken place, which
- * requires a subsequent TLB flush.
- */
-#define pte_update(mm, addr, ptep) do { } while (0)
-#endif
-
/*
* We only update the dirty/accessed state if we set
* the dirty bit by hand in the kernel, since the hardware
@@ -1012,7 +1014,6 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep)
{
pte_t pte = native_ptep_get_and_clear(ptep);
- pte_update(mm, addr, ptep);
return pte;
}
@@ -1039,7 +1040,6 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
clear_bit(_PAGE_BIT_RW, (unsigned long *)&ptep->pte);
- pte_update(mm, addr, ptep);
}
#define flush_tlb_fix_spurious_fault(vma, address) do { } while (0)
@@ -1153,6 +1153,23 @@ static inline pte_t pte_swp_clear_soft_dirty(pte_t pte)
{
return pte_clear_flags(pte, _PAGE_SWP_SOFT_DIRTY);
}
+
+#ifdef CONFIG_ARCH_ENABLE_THP_MIGRATION
+static inline pmd_t pmd_swp_mksoft_dirty(pmd_t pmd)
+{
+ return pmd_set_flags(pmd, _PAGE_SWP_SOFT_DIRTY);
+}
+
+static inline int pmd_swp_soft_dirty(pmd_t pmd)
+{
+ return pmd_flags(pmd) & _PAGE_SWP_SOFT_DIRTY;
+}
+
+static inline pmd_t pmd_swp_clear_soft_dirty(pmd_t pmd)
+{
+ return pmd_clear_flags(pmd, _PAGE_SWP_SOFT_DIRTY);
+}
+#endif
#endif
#define PKRU_AD_BIT 0x1
@@ -1185,6 +1202,54 @@ static inline u16 pte_flags_pkey(unsigned long pte_flags)
#endif
}
+static inline bool __pkru_allows_pkey(u16 pkey, bool write)
+{
+ u32 pkru = read_pkru();
+
+ if (!__pkru_allows_read(pkru, pkey))
+ return false;
+ if (write && !__pkru_allows_write(pkru, pkey))
+ return false;
+
+ return true;
+}
+
+/*
+ * 'pteval' can come from a PTE, PMD or PUD. We only check
+ * _PAGE_PRESENT, _PAGE_USER, and _PAGE_RW in here which are the
+ * same value on all 3 types.
+ */
+static inline bool __pte_access_permitted(unsigned long pteval, bool write)
+{
+ unsigned long need_pte_bits = _PAGE_PRESENT|_PAGE_USER;
+
+ if (write)
+ need_pte_bits |= _PAGE_RW;
+
+ if ((pteval & need_pte_bits) != need_pte_bits)
+ return 0;
+
+ return __pkru_allows_pkey(pte_flags_pkey(pteval), write);
+}
+
+#define pte_access_permitted pte_access_permitted
+static inline bool pte_access_permitted(pte_t pte, bool write)
+{
+ return __pte_access_permitted(pte_val(pte), write);
+}
+
+#define pmd_access_permitted pmd_access_permitted
+static inline bool pmd_access_permitted(pmd_t pmd, bool write)
+{
+ return __pte_access_permitted(pmd_val(pmd), write);
+}
+
+#define pud_access_permitted pud_access_permitted
+static inline bool pud_access_permitted(pud_t pud, bool write)
+{
+ return __pte_access_permitted(pud_val(pud), write);
+}
+
#include <asm-generic/pgtable.h>
#endif /* __ASSEMBLY__ */
diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
index 9991224f6238..972a4698c530 100644
--- a/arch/x86/include/asm/pgtable_64.h
+++ b/arch/x86/include/asm/pgtable_64.h
@@ -14,15 +14,17 @@
#include <linux/bitops.h>
#include <linux/threads.h>
+extern p4d_t level4_kernel_pgt[512];
+extern p4d_t level4_ident_pgt[512];
extern pud_t level3_kernel_pgt[512];
extern pud_t level3_ident_pgt[512];
extern pmd_t level2_kernel_pgt[512];
extern pmd_t level2_fixmap_pgt[512];
extern pmd_t level2_ident_pgt[512];
extern pte_t level1_fixmap_pgt[512];
-extern pgd_t init_level4_pgt[];
+extern pgd_t init_top_pgt[];
-#define swapper_pg_dir init_level4_pgt
+#define swapper_pg_dir init_top_pgt
extern void paging_init(void);
@@ -178,15 +180,21 @@ static inline int pgd_large(pgd_t pgd) { return 0; }
/*
* Encode and de-code a swap entry
*
- * | ... | 11| 10| 9|8|7|6|5| 4| 3|2|1|0| <- bit number
- * | ... |SW3|SW2|SW1|G|L|D|A|CD|WT|U|W|P| <- bit names
- * | OFFSET (14->63) | TYPE (9-13) |0|X|X|X| X| X|X|X|0| <- swp entry
+ * | ... | 11| 10| 9|8|7|6|5| 4| 3|2| 1|0| <- bit number
+ * | ... |SW3|SW2|SW1|G|L|D|A|CD|WT|U| W|P| <- bit names
+ * | OFFSET (14->63) | TYPE (9-13) |0|0|X|X| X| X|X|SD|0| <- swp entry
*
* G (8) is aliased and used as a PROT_NONE indicator for
* !present ptes. We need to start storing swap entries above
* there. We also need to avoid using A and D because of an
* erratum where they can be incorrectly set by hardware on
* non-present PTEs.
+ *
+ * SD (1) in swp entry is used to store soft dirty bit, which helps us
+ * remember soft dirty over page migration
+ *
+ * Bit 7 in swp entry should be 0 because pmd_present checks not only P,
+ * but also L and G.
*/
#define SWP_TYPE_FIRST_BIT (_PAGE_BIT_PROTNONE + 1)
#define SWP_TYPE_BITS 5
@@ -202,7 +210,9 @@ static inline int pgd_large(pgd_t pgd) { return 0; }
((type) << (SWP_TYPE_FIRST_BIT)) \
| ((offset) << SWP_OFFSET_FIRST_BIT) })
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val((pte)) })
+#define __pmd_to_swp_entry(pmd) ((swp_entry_t) { pmd_val((pmd)) })
#define __swp_entry_to_pte(x) ((pte_t) { .pte = (x).val })
+#define __swp_entry_to_pmd(x) ((pmd_t) { .pmd = (x).val })
extern int kern_addr_valid(unsigned long addr);
extern void cleanup_highmap(void);
@@ -227,6 +237,20 @@ extern void cleanup_highmap(void);
extern void init_extra_mapping_uc(unsigned long phys, unsigned long size);
extern void init_extra_mapping_wb(unsigned long phys, unsigned long size);
-#endif /* !__ASSEMBLY__ */
+#define gup_fast_permitted gup_fast_permitted
+static inline bool gup_fast_permitted(unsigned long start, int nr_pages,
+ int write)
+{
+ unsigned long len, end;
+
+ len = (unsigned long)nr_pages << PAGE_SHIFT;
+ end = start + len;
+ if (end < start)
+ return false;
+ if (end >> __VIRTUAL_MASK_SHIFT)
+ return false;
+ return true;
+}
+#endif /* !__ASSEMBLY__ */
#endif /* _ASM_X86_PGTABLE_64_H */
diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index bf9638e1ee42..f1492473f10e 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -2,6 +2,8 @@
#define _ASM_X86_PGTABLE_DEFS_H
#include <linux/const.h>
+#include <linux/mem_encrypt.h>
+
#include <asm/page_types.h>
#define FIRST_USER_ADDRESS 0UL
@@ -97,15 +99,15 @@
/*
* Tracking soft dirty bit when a page goes to a swap is tricky.
* We need a bit which can be stored in pte _and_ not conflict
- * with swap entry format. On x86 bits 6 and 7 are *not* involved
- * into swap entry computation, but bit 6 is used for nonlinear
- * file mapping, so we borrow bit 7 for soft dirty tracking.
+ * with swap entry format. On x86 bits 1-4 are *not* involved
+ * into swap entry computation, but bit 7 is used for thp migration,
+ * so we borrow bit 1 for soft dirty tracking.
*
* Please note that this bit must be treated as swap dirty page
- * mark if and only if the PTE has present bit clear!
+ * mark if and only if the PTE/PMD has present bit clear!
*/
#ifdef CONFIG_MEM_SOFT_DIRTY
-#define _PAGE_SWP_SOFT_DIRTY _PAGE_PSE
+#define _PAGE_SWP_SOFT_DIRTY _PAGE_RW
#else
#define _PAGE_SWP_SOFT_DIRTY (_AT(pteval_t, 0))
#endif
@@ -121,10 +123,10 @@
#define _PAGE_PROTNONE (_AT(pteval_t, 1) << _PAGE_BIT_PROTNONE)
-#define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | \
- _PAGE_ACCESSED | _PAGE_DIRTY)
-#define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | \
- _PAGE_DIRTY)
+#define _PAGE_TABLE_NOENC (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER |\
+ _PAGE_ACCESSED | _PAGE_DIRTY)
+#define _KERNPG_TABLE_NOENC (_PAGE_PRESENT | _PAGE_RW | \
+ _PAGE_ACCESSED | _PAGE_DIRTY)
/*
* Set of bits not changed in pte_modify. The pte's
@@ -159,6 +161,7 @@ enum page_cache_mode {
#define _PAGE_CACHE_MASK (_PAGE_PAT | _PAGE_PCD | _PAGE_PWT)
#define _PAGE_NOCACHE (cachemode2protval(_PAGE_CACHE_MODE_UC))
+#define _PAGE_CACHE_WP (cachemode2protval(_PAGE_CACHE_MODE_WP))
#define PAGE_NONE __pgprot(_PAGE_PROTNONE | _PAGE_ACCESSED)
#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | \
@@ -187,22 +190,42 @@ enum page_cache_mode {
#define __PAGE_KERNEL_VVAR (__PAGE_KERNEL_RO | _PAGE_USER)
#define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE)
#define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE)
+#define __PAGE_KERNEL_WP (__PAGE_KERNEL | _PAGE_CACHE_WP)
#define __PAGE_KERNEL_IO (__PAGE_KERNEL)
#define __PAGE_KERNEL_IO_NOCACHE (__PAGE_KERNEL_NOCACHE)
-#define PAGE_KERNEL __pgprot(__PAGE_KERNEL)
-#define PAGE_KERNEL_RO __pgprot(__PAGE_KERNEL_RO)
-#define PAGE_KERNEL_EXEC __pgprot(__PAGE_KERNEL_EXEC)
-#define PAGE_KERNEL_RX __pgprot(__PAGE_KERNEL_RX)
-#define PAGE_KERNEL_NOCACHE __pgprot(__PAGE_KERNEL_NOCACHE)
-#define PAGE_KERNEL_LARGE __pgprot(__PAGE_KERNEL_LARGE)
-#define PAGE_KERNEL_LARGE_EXEC __pgprot(__PAGE_KERNEL_LARGE_EXEC)
-#define PAGE_KERNEL_VSYSCALL __pgprot(__PAGE_KERNEL_VSYSCALL)
-#define PAGE_KERNEL_VVAR __pgprot(__PAGE_KERNEL_VVAR)
+#ifndef __ASSEMBLY__
+
+#define _PAGE_ENC (_AT(pteval_t, sme_me_mask))
+
+#define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | \
+ _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_ENC)
+#define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | \
+ _PAGE_DIRTY | _PAGE_ENC)
+
+#define __PAGE_KERNEL_ENC (__PAGE_KERNEL | _PAGE_ENC)
+#define __PAGE_KERNEL_ENC_WP (__PAGE_KERNEL_WP | _PAGE_ENC)
+
+#define __PAGE_KERNEL_NOENC (__PAGE_KERNEL)
+#define __PAGE_KERNEL_NOENC_WP (__PAGE_KERNEL_WP)
+
+#define PAGE_KERNEL __pgprot(__PAGE_KERNEL | _PAGE_ENC)
+#define PAGE_KERNEL_NOENC __pgprot(__PAGE_KERNEL)
+#define PAGE_KERNEL_RO __pgprot(__PAGE_KERNEL_RO | _PAGE_ENC)
+#define PAGE_KERNEL_EXEC __pgprot(__PAGE_KERNEL_EXEC | _PAGE_ENC)
+#define PAGE_KERNEL_EXEC_NOENC __pgprot(__PAGE_KERNEL_EXEC)
+#define PAGE_KERNEL_RX __pgprot(__PAGE_KERNEL_RX | _PAGE_ENC)
+#define PAGE_KERNEL_NOCACHE __pgprot(__PAGE_KERNEL_NOCACHE | _PAGE_ENC)
+#define PAGE_KERNEL_LARGE __pgprot(__PAGE_KERNEL_LARGE | _PAGE_ENC)
+#define PAGE_KERNEL_LARGE_EXEC __pgprot(__PAGE_KERNEL_LARGE_EXEC | _PAGE_ENC)
+#define PAGE_KERNEL_VSYSCALL __pgprot(__PAGE_KERNEL_VSYSCALL | _PAGE_ENC)
+#define PAGE_KERNEL_VVAR __pgprot(__PAGE_KERNEL_VVAR | _PAGE_ENC)
+
+#define PAGE_KERNEL_IO __pgprot(__PAGE_KERNEL_IO)
+#define PAGE_KERNEL_IO_NOCACHE __pgprot(__PAGE_KERNEL_IO_NOCACHE)
-#define PAGE_KERNEL_IO __pgprot(__PAGE_KERNEL_IO)
-#define PAGE_KERNEL_IO_NOCACHE __pgprot(__PAGE_KERNEL_IO_NOCACHE)
+#endif /* __ASSEMBLY__ */
/* xwr */
#define __P000 PAGE_NONE
@@ -287,6 +310,11 @@ static inline p4dval_t native_p4d_val(p4d_t p4d)
#else
#include <asm-generic/pgtable-nop4d.h>
+static inline p4d_t native_make_p4d(pudval_t val)
+{
+ return (p4d_t) { .pgd = native_make_pgd((pgdval_t)val) };
+}
+
static inline p4dval_t native_p4d_val(p4d_t p4d)
{
return native_pgd_val(p4d.pgd);
diff --git a/arch/x86/include/asm/pmem.h b/arch/x86/include/asm/pmem.h
deleted file mode 100644
index 0ff8fe71b255..000000000000
--- a/arch/x86/include/asm/pmem.h
+++ /dev/null
@@ -1,136 +0,0 @@
-/*
- * Copyright(c) 2015 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- */
-#ifndef __ASM_X86_PMEM_H__
-#define __ASM_X86_PMEM_H__
-
-#include <linux/uaccess.h>
-#include <asm/cacheflush.h>
-#include <asm/cpufeature.h>
-#include <asm/special_insns.h>
-
-#ifdef CONFIG_ARCH_HAS_PMEM_API
-/**
- * arch_memcpy_to_pmem - copy data to persistent memory
- * @dst: destination buffer for the copy
- * @src: source buffer for the copy
- * @n: length of the copy in bytes
- *
- * Copy data to persistent memory media via non-temporal stores so that
- * a subsequent pmem driver flush operation will drain posted write queues.
- */
-static inline void arch_memcpy_to_pmem(void *dst, const void *src, size_t n)
-{
- int rem;
-
- /*
- * We are copying between two kernel buffers, if
- * __copy_from_user_inatomic_nocache() returns an error (page
- * fault) we would have already reported a general protection fault
- * before the WARN+BUG.
- */
- rem = __copy_from_user_inatomic_nocache(dst, (void __user *) src, n);
- if (WARN(rem, "%s: fault copying %p <- %p unwritten: %d\n",
- __func__, dst, src, rem))
- BUG();
-}
-
-/**
- * arch_wb_cache_pmem - write back a cache range with CLWB
- * @vaddr: virtual start address
- * @size: number of bytes to write back
- *
- * Write back a cache range using the CLWB (cache line write back)
- * instruction. Note that @size is internally rounded up to be cache
- * line size aligned.
- */
-static inline void arch_wb_cache_pmem(void *addr, size_t size)
-{
- u16 x86_clflush_size = boot_cpu_data.x86_clflush_size;
- unsigned long clflush_mask = x86_clflush_size - 1;
- void *vend = addr + size;
- void *p;
-
- for (p = (void *)((unsigned long)addr & ~clflush_mask);
- p < vend; p += x86_clflush_size)
- clwb(p);
-}
-
-/**
- * arch_copy_from_iter_pmem - copy data from an iterator to PMEM
- * @addr: PMEM destination address
- * @bytes: number of bytes to copy
- * @i: iterator with source data
- *
- * Copy data from the iterator 'i' to the PMEM buffer starting at 'addr'.
- */
-static inline size_t arch_copy_from_iter_pmem(void *addr, size_t bytes,
- struct iov_iter *i)
-{
- size_t len;
-
- /* TODO: skip the write-back by always using non-temporal stores */
- len = copy_from_iter_nocache(addr, bytes, i);
-
- /*
- * In the iovec case on x86_64 copy_from_iter_nocache() uses
- * non-temporal stores for the bulk of the transfer, but we need
- * to manually flush if the transfer is unaligned. A cached
- * memory copy is used when destination or size is not naturally
- * aligned. That is:
- * - Require 8-byte alignment when size is 8 bytes or larger.
- * - Require 4-byte alignment when size is 4 bytes.
- *
- * In the non-iovec case the entire destination needs to be
- * flushed.
- */
- if (iter_is_iovec(i)) {
- unsigned long flushed, dest = (unsigned long) addr;
-
- if (bytes < 8) {
- if (!IS_ALIGNED(dest, 4) || (bytes != 4))
- arch_wb_cache_pmem(addr, bytes);
- } else {
- if (!IS_ALIGNED(dest, 8)) {
- dest = ALIGN(dest, boot_cpu_data.x86_clflush_size);
- arch_wb_cache_pmem(addr, 1);
- }
-
- flushed = dest - (unsigned long) addr;
- if (bytes > flushed && !IS_ALIGNED(bytes - flushed, 8))
- arch_wb_cache_pmem(addr + bytes - 1, 1);
- }
- } else
- arch_wb_cache_pmem(addr, bytes);
-
- return len;
-}
-
-/**
- * arch_clear_pmem - zero a PMEM memory range
- * @addr: virtual start address
- * @size: number of bytes to zero
- *
- * Write zeros into the memory range starting at 'addr' for 'size' bytes.
- */
-static inline void arch_clear_pmem(void *addr, size_t size)
-{
- memset(addr, 0, size);
- arch_wb_cache_pmem(addr, size);
-}
-
-static inline void arch_invalidate_pmem(void *addr, size_t size)
-{
- clflush_cache_range(addr, size);
-}
-#endif /* CONFIG_ARCH_HAS_PMEM_API */
-#endif /* __ASM_X86_PMEM_H__ */
diff --git a/arch/x86/include/asm/preempt.h b/arch/x86/include/asm/preempt.h
index ec1f3c651150..4f44505dbf87 100644
--- a/arch/x86/include/asm/preempt.h
+++ b/arch/x86/include/asm/preempt.h
@@ -100,19 +100,14 @@ static __always_inline bool should_resched(int preempt_offset)
#ifdef CONFIG_PREEMPT
extern asmlinkage void ___preempt_schedule(void);
-# define __preempt_schedule() \
-({ \
- register void *__sp asm(_ASM_SP); \
- asm volatile ("call ___preempt_schedule" : "+r"(__sp)); \
-})
+# define __preempt_schedule() \
+ asm volatile ("call ___preempt_schedule" : ASM_CALL_CONSTRAINT)
extern asmlinkage void preempt_schedule(void);
extern asmlinkage void ___preempt_schedule_notrace(void);
-# define __preempt_schedule_notrace() \
-({ \
- register void *__sp asm(_ASM_SP); \
- asm volatile ("call ___preempt_schedule_notrace" : "+r"(__sp)); \
-})
+# define __preempt_schedule_notrace() \
+ asm volatile ("call ___preempt_schedule_notrace" : ASM_CALL_CONSTRAINT)
+
extern asmlinkage void preempt_schedule_notrace(void);
#endif
diff --git a/arch/x86/include/asm/processor-flags.h b/arch/x86/include/asm/processor-flags.h
index 39fb618e2211..dc723b64acf0 100644
--- a/arch/x86/include/asm/processor-flags.h
+++ b/arch/x86/include/asm/processor-flags.h
@@ -2,10 +2,49 @@
#define _ASM_X86_PROCESSOR_FLAGS_H
#include <uapi/asm/processor-flags.h>
+#include <linux/mem_encrypt.h>
#ifdef CONFIG_VM86
#define X86_VM_MASK X86_EFLAGS_VM
#else
#define X86_VM_MASK 0 /* No VM86 support */
#endif
+
+/*
+ * CR3's layout varies depending on several things.
+ *
+ * If CR4.PCIDE is set (64-bit only), then CR3[11:0] is the address space ID.
+ * If PAE is enabled, then CR3[11:5] is part of the PDPT address
+ * (i.e. it's 32-byte aligned, not page-aligned) and CR3[4:0] is ignored.
+ * Otherwise (non-PAE, non-PCID), CR3[3] is PWT, CR3[4] is PCD, and
+ * CR3[2:0] and CR3[11:5] are ignored.
+ *
+ * In all cases, Linux puts zeros in the low ignored bits and in PWT and PCD.
+ *
+ * CR3[63] is always read as zero. If CR4.PCIDE is set, then CR3[63] may be
+ * written as 1 to prevent the write to CR3 from flushing the TLB.
+ *
+ * On systems with SME, one bit (in a variable position!) is stolen to indicate
+ * that the top-level paging structure is encrypted.
+ *
+ * All of the remaining bits indicate the physical address of the top-level
+ * paging structure.
+ *
+ * CR3_ADDR_MASK is the mask used by read_cr3_pa().
+ */
+#ifdef CONFIG_X86_64
+/* Mask off the address space ID and SME encryption bits. */
+#define CR3_ADDR_MASK __sme_clr(0x7FFFFFFFFFFFF000ull)
+#define CR3_PCID_MASK 0xFFFull
+#define CR3_NOFLUSH BIT_ULL(63)
+#else
+/*
+ * CR3_ADDR_MASK needs at least bits 31:5 set on PAE systems, and we save
+ * a tiny bit of code size by setting all the bits.
+ */
+#define CR3_ADDR_MASK 0xFFFFFFFFull
+#define CR3_PCID_MASK 0ull
+#define CR3_NOFLUSH 0
+#endif
+
#endif /* _ASM_X86_PROCESSOR_FLAGS_H */
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index a28b671f1549..b390ff76e58f 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -22,6 +22,7 @@ struct vm86;
#include <asm/nops.h>
#include <asm/special_insns.h>
#include <asm/fpu/types.h>
+#include <asm/unwind_hints.h>
#include <linux/personality.h>
#include <linux/cache.h>
@@ -29,6 +30,7 @@ struct vm86;
#include <linux/math64.h>
#include <linux/err.h>
#include <linux/irqflags.h>
+#include <linux/mem_encrypt.h>
/*
* We handle most unaligned accesses in hardware. On the other hand
@@ -129,7 +131,7 @@ struct cpuinfo_x86 {
/* Index into per_cpu list: */
u16 cpu_index;
u32 microcode;
-};
+} __randomize_layout;
struct cpuid_regs {
u32 eax, ebx, ecx, edx;
@@ -231,9 +233,22 @@ native_cpuid_reg(ebx)
native_cpuid_reg(ecx)
native_cpuid_reg(edx)
+/*
+ * Friendlier CR3 helpers.
+ */
+static inline unsigned long read_cr3_pa(void)
+{
+ return __read_cr3() & CR3_ADDR_MASK;
+}
+
+static inline unsigned long native_read_cr3_pa(void)
+{
+ return __native_read_cr3() & CR3_ADDR_MASK;
+}
+
static inline void load_cr3(pgd_t *pgdir)
{
- write_cr3(__pa(pgdir));
+ write_cr3(__sme_pa(pgdir));
}
#ifdef CONFIG_X86_32
@@ -653,7 +668,7 @@ static inline void sync_core(void)
* In case NMI unmasking or performance ever becomes a problem,
* the next best option appears to be MOV-to-CR2 and an
* unconditional jump. That sequence also works on all CPUs,
- * but it will fault at CPL3 (i.e. Xen PV and lguest).
+ * but it will fault at CPL3 (i.e. Xen PV).
*
* CPUID is the conventional way, but it's nasty: it doesn't
* exist on some 486-like CPUs, and it usually exits to a
@@ -662,8 +677,6 @@ static inline void sync_core(void)
* Like all of Linux's memory ordering operations, this is a
* compiler barrier as well.
*/
- register void *__sp asm(_ASM_SP);
-
#ifdef CONFIG_X86_32
asm volatile (
"pushfl\n\t"
@@ -671,11 +684,12 @@ static inline void sync_core(void)
"pushl $1f\n\t"
"iret\n\t"
"1:"
- : "+r" (__sp) : : "memory");
+ : ASM_CALL_CONSTRAINT : : "memory");
#else
unsigned int tmp;
asm volatile (
+ UNWIND_HINT_SAVE
"mov %%ss, %0\n\t"
"pushq %q0\n\t"
"pushq %%rsp\n\t"
@@ -685,8 +699,9 @@ static inline void sync_core(void)
"pushq %q0\n\t"
"pushq $1f\n\t"
"iretq\n\t"
+ UNWIND_HINT_RESTORE
"1:"
- : "=&r" (tmp), "+r" (__sp) : : "cc", "memory");
+ : "=&r" (tmp), ASM_CALL_CONSTRAINT : : "cc", "memory");
#endif
}
@@ -794,7 +809,9 @@ static inline void spin_lock_prefetch(const void *x)
*/
#define IA32_PAGE_OFFSET PAGE_OFFSET
#define TASK_SIZE PAGE_OFFSET
+#define TASK_SIZE_LOW TASK_SIZE
#define TASK_SIZE_MAX TASK_SIZE
+#define DEFAULT_MAP_WINDOW TASK_SIZE
#define STACK_TOP TASK_SIZE
#define STACK_TOP_MAX STACK_TOP
@@ -834,7 +851,9 @@ static inline void spin_lock_prefetch(const void *x)
* particular problem by preventing anything from being mapped
* at the maximum canonical address.
*/
-#define TASK_SIZE_MAX ((1UL << 47) - PAGE_SIZE)
+#define TASK_SIZE_MAX ((1UL << __VIRTUAL_MASK_SHIFT) - PAGE_SIZE)
+
+#define DEFAULT_MAP_WINDOW ((1UL << 47) - PAGE_SIZE)
/* This decides where the kernel will search for a free chunk of vm
* space during mmap's.
@@ -842,12 +861,14 @@ static inline void spin_lock_prefetch(const void *x)
#define IA32_PAGE_OFFSET ((current->personality & ADDR_LIMIT_3GB) ? \
0xc0000000 : 0xFFFFe000)
+#define TASK_SIZE_LOW (test_thread_flag(TIF_ADDR32) ? \
+ IA32_PAGE_OFFSET : DEFAULT_MAP_WINDOW)
#define TASK_SIZE (test_thread_flag(TIF_ADDR32) ? \
IA32_PAGE_OFFSET : TASK_SIZE_MAX)
#define TASK_SIZE_OF(child) ((test_tsk_thread_flag(child, TIF_ADDR32)) ? \
IA32_PAGE_OFFSET : TASK_SIZE_MAX)
-#define STACK_TOP TASK_SIZE
+#define STACK_TOP TASK_SIZE_LOW
#define STACK_TOP_MAX TASK_SIZE_MAX
#define INIT_THREAD { \
@@ -868,7 +889,7 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_ip,
* space during mmap's.
*/
#define __TASK_UNMAPPED_BASE(task_size) (PAGE_ALIGN(task_size / 3))
-#define TASK_UNMAPPED_BASE __TASK_UNMAPPED_BASE(TASK_SIZE)
+#define TASK_UNMAPPED_BASE __TASK_UNMAPPED_BASE(TASK_SIZE_LOW)
#define KSTK_EIP(task) (task_pt_regs(task)->ip)
@@ -899,8 +920,13 @@ static inline int mpx_disable_management(void)
}
#endif /* CONFIG_X86_INTEL_MPX */
+#ifdef CONFIG_CPU_SUP_AMD
extern u16 amd_get_nb_id(int cpu);
extern u32 amd_get_nodes_per_socket(void);
+#else
+static inline u16 amd_get_nb_id(int cpu) { return 0; }
+static inline u32 amd_get_nodes_per_socket(void) { return 0; }
+#endif
static inline uint32_t hypervisor_cpuid_base(const char *sig, uint32_t leaves)
{
diff --git a/arch/x86/include/asm/proto.h b/arch/x86/include/asm/proto.h
index 8d3964fc5f91..b408b1886195 100644
--- a/arch/x86/include/asm/proto.h
+++ b/arch/x86/include/asm/proto.h
@@ -24,6 +24,9 @@ void entry_SYSENTER_compat(void);
void __end_entry_SYSENTER_compat(void);
void entry_SYSCALL_compat(void);
void entry_INT80_compat(void);
+#if defined(CONFIG_X86_64) && defined(CONFIG_XEN_PV)
+void xen_entry_INT80_compat(void);
+#endif
#endif
void x86_configure_nx(void);
diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
index 2b5d686ea9f3..91c04c8e67fa 100644
--- a/arch/x86/include/asm/ptrace.h
+++ b/arch/x86/include/asm/ptrace.h
@@ -9,6 +9,20 @@
#ifdef __i386__
struct pt_regs {
+ /*
+ * NB: 32-bit x86 CPUs are inconsistent as what happens in the
+ * following cases (where %seg represents a segment register):
+ *
+ * - pushl %seg: some do a 16-bit write and leave the high
+ * bits alone
+ * - movl %seg, [mem]: some do a 16-bit write despite the movl
+ * - IDT entry: some (e.g. 486) will leave the high bits of CS
+ * and (if applicable) SS undefined.
+ *
+ * Fortunately, x86-32 doesn't read the high bits on POP or IRET,
+ * so we can just treat all of the segment registers as 16-bit
+ * values.
+ */
unsigned long bx;
unsigned long cx;
unsigned long dx;
@@ -16,16 +30,22 @@ struct pt_regs {
unsigned long di;
unsigned long bp;
unsigned long ax;
- unsigned long ds;
- unsigned long es;
- unsigned long fs;
- unsigned long gs;
+ unsigned short ds;
+ unsigned short __dsh;
+ unsigned short es;
+ unsigned short __esh;
+ unsigned short fs;
+ unsigned short __fsh;
+ unsigned short gs;
+ unsigned short __gsh;
unsigned long orig_ax;
unsigned long ip;
- unsigned long cs;
+ unsigned short cs;
+ unsigned short __csh;
unsigned long flags;
unsigned long sp;
- unsigned long ss;
+ unsigned short ss;
+ unsigned short __ssh;
};
#else /* __i386__ */
@@ -176,6 +196,17 @@ static inline unsigned long regs_get_register(struct pt_regs *regs,
if (offset == offsetof(struct pt_regs, sp) &&
regs->cs == __KERNEL_CS)
return kernel_stack_pointer(regs);
+
+ /* The selector fields are 16-bit. */
+ if (offset == offsetof(struct pt_regs, cs) ||
+ offset == offsetof(struct pt_regs, ss) ||
+ offset == offsetof(struct pt_regs, ds) ||
+ offset == offsetof(struct pt_regs, es) ||
+ offset == offsetof(struct pt_regs, fs) ||
+ offset == offsetof(struct pt_regs, gs)) {
+ return *(u16 *)((unsigned long)regs + offset);
+
+ }
#endif
return *(unsigned long *)((unsigned long)regs + offset);
}
diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h
index 230e1903acf0..90d91520c13a 100644
--- a/arch/x86/include/asm/realmode.h
+++ b/arch/x86/include/asm/realmode.h
@@ -1,6 +1,15 @@
#ifndef _ARCH_X86_REALMODE_H
#define _ARCH_X86_REALMODE_H
+/*
+ * Flag bit definitions for use with the flags field of the trampoline header
+ * in the CONFIG_X86_64 variant.
+ */
+#define TH_FLAGS_SME_ACTIVE_BIT 0
+#define TH_FLAGS_SME_ACTIVE BIT(TH_FLAGS_SME_ACTIVE_BIT)
+
+#ifndef __ASSEMBLY__
+
#include <linux/types.h>
#include <asm/io.h>
@@ -38,6 +47,7 @@ struct trampoline_header {
u64 start;
u64 efer;
u32 cr4;
+ u32 flags;
#endif
};
@@ -69,4 +79,6 @@ static inline size_t real_mode_size_needed(void)
void set_real_mode_mem(phys_addr_t mem, size_t size);
void reserve_real_mode(void);
+#endif /* __ASSEMBLY__ */
+
#endif /* _ARCH_X86_REALMODE_H */
diff --git a/arch/x86/include/asm/refcount.h b/arch/x86/include/asm/refcount.h
new file mode 100644
index 000000000000..ff871210b9f2
--- /dev/null
+++ b/arch/x86/include/asm/refcount.h
@@ -0,0 +1,109 @@
+#ifndef __ASM_X86_REFCOUNT_H
+#define __ASM_X86_REFCOUNT_H
+/*
+ * x86-specific implementation of refcount_t. Based on PAX_REFCOUNT from
+ * PaX/grsecurity.
+ */
+#include <linux/refcount.h>
+
+/*
+ * This is the first portion of the refcount error handling, which lives in
+ * .text.unlikely, and is jumped to from the CPU flag check (in the
+ * following macros). This saves the refcount value location into CX for
+ * the exception handler to use (in mm/extable.c), and then triggers the
+ * central refcount exception. The fixup address for the exception points
+ * back to the regular execution flow in .text.
+ */
+#define _REFCOUNT_EXCEPTION \
+ ".pushsection .text.unlikely\n" \
+ "111:\tlea %[counter], %%" _ASM_CX "\n" \
+ "112:\t" ASM_UD0 "\n" \
+ ASM_UNREACHABLE \
+ ".popsection\n" \
+ "113:\n" \
+ _ASM_EXTABLE_REFCOUNT(112b, 113b)
+
+/* Trigger refcount exception if refcount result is negative. */
+#define REFCOUNT_CHECK_LT_ZERO \
+ "js 111f\n\t" \
+ _REFCOUNT_EXCEPTION
+
+/* Trigger refcount exception if refcount result is zero or negative. */
+#define REFCOUNT_CHECK_LE_ZERO \
+ "jz 111f\n\t" \
+ REFCOUNT_CHECK_LT_ZERO
+
+/* Trigger refcount exception unconditionally. */
+#define REFCOUNT_ERROR \
+ "jmp 111f\n\t" \
+ _REFCOUNT_EXCEPTION
+
+static __always_inline void refcount_add(unsigned int i, refcount_t *r)
+{
+ asm volatile(LOCK_PREFIX "addl %1,%0\n\t"
+ REFCOUNT_CHECK_LT_ZERO
+ : [counter] "+m" (r->refs.counter)
+ : "ir" (i)
+ : "cc", "cx");
+}
+
+static __always_inline void refcount_inc(refcount_t *r)
+{
+ asm volatile(LOCK_PREFIX "incl %0\n\t"
+ REFCOUNT_CHECK_LT_ZERO
+ : [counter] "+m" (r->refs.counter)
+ : : "cc", "cx");
+}
+
+static __always_inline void refcount_dec(refcount_t *r)
+{
+ asm volatile(LOCK_PREFIX "decl %0\n\t"
+ REFCOUNT_CHECK_LE_ZERO
+ : [counter] "+m" (r->refs.counter)
+ : : "cc", "cx");
+}
+
+static __always_inline __must_check
+bool refcount_sub_and_test(unsigned int i, refcount_t *r)
+{
+ GEN_BINARY_SUFFIXED_RMWcc(LOCK_PREFIX "subl", REFCOUNT_CHECK_LT_ZERO,
+ r->refs.counter, "er", i, "%0", e);
+}
+
+static __always_inline __must_check bool refcount_dec_and_test(refcount_t *r)
+{
+ GEN_UNARY_SUFFIXED_RMWcc(LOCK_PREFIX "decl", REFCOUNT_CHECK_LT_ZERO,
+ r->refs.counter, "%0", e);
+}
+
+static __always_inline __must_check
+bool refcount_add_not_zero(unsigned int i, refcount_t *r)
+{
+ int c, result;
+
+ c = atomic_read(&(r->refs));
+ do {
+ if (unlikely(c == 0))
+ return false;
+
+ result = c + i;
+
+ /* Did we try to increment from/to an undesirable state? */
+ if (unlikely(c < 0 || c == INT_MAX || result < c)) {
+ asm volatile(REFCOUNT_ERROR
+ : : [counter] "m" (r->refs.counter)
+ : "cc", "cx");
+ break;
+ }
+
+ } while (!atomic_try_cmpxchg(&(r->refs), &c, result));
+
+ return c != 0;
+}
+
+static __always_inline __must_check bool refcount_inc_not_zero(refcount_t *r)
+{
+ return refcount_add_not_zero(1, r);
+}
+
+#endif
diff --git a/arch/x86/include/asm/rmwcc.h b/arch/x86/include/asm/rmwcc.h
index 661dd305694a..045f99211a99 100644
--- a/arch/x86/include/asm/rmwcc.h
+++ b/arch/x86/include/asm/rmwcc.h
@@ -1,45 +1,56 @@
#ifndef _ASM_X86_RMWcc
#define _ASM_X86_RMWcc
+#define __CLOBBERS_MEM "memory"
+#define __CLOBBERS_MEM_CC_CX "memory", "cc", "cx"
+
#if !defined(__GCC_ASM_FLAG_OUTPUTS__) && defined(CC_HAVE_ASM_GOTO)
/* Use asm goto */
-#define __GEN_RMWcc(fullop, var, cc, ...) \
+#define __GEN_RMWcc(fullop, var, cc, clobbers, ...) \
do { \
asm_volatile_goto (fullop "; j" #cc " %l[cc_label]" \
- : : "m" (var), ## __VA_ARGS__ \
- : "memory" : cc_label); \
+ : : [counter] "m" (var), ## __VA_ARGS__ \
+ : clobbers : cc_label); \
return 0; \
cc_label: \
return 1; \
} while (0)
-#define GEN_UNARY_RMWcc(op, var, arg0, cc) \
- __GEN_RMWcc(op " " arg0, var, cc)
+#define __BINARY_RMWcc_ARG " %1, "
-#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc) \
- __GEN_RMWcc(op " %1, " arg0, var, cc, vcon (val))
#else /* defined(__GCC_ASM_FLAG_OUTPUTS__) || !defined(CC_HAVE_ASM_GOTO) */
/* Use flags output or a set instruction */
-#define __GEN_RMWcc(fullop, var, cc, ...) \
+#define __GEN_RMWcc(fullop, var, cc, clobbers, ...) \
do { \
bool c; \
asm volatile (fullop ";" CC_SET(cc) \
- : "+m" (var), CC_OUT(cc) (c) \
- : __VA_ARGS__ : "memory"); \
+ : [counter] "+m" (var), CC_OUT(cc) (c) \
+ : __VA_ARGS__ : clobbers); \
return c; \
} while (0)
+#define __BINARY_RMWcc_ARG " %2, "
+
+#endif /* defined(__GCC_ASM_FLAG_OUTPUTS__) || !defined(CC_HAVE_ASM_GOTO) */
+
#define GEN_UNARY_RMWcc(op, var, arg0, cc) \
- __GEN_RMWcc(op " " arg0, var, cc)
+ __GEN_RMWcc(op " " arg0, var, cc, __CLOBBERS_MEM)
+
+#define GEN_UNARY_SUFFIXED_RMWcc(op, suffix, var, arg0, cc) \
+ __GEN_RMWcc(op " " arg0 "\n\t" suffix, var, cc, \
+ __CLOBBERS_MEM_CC_CX)
#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc) \
- __GEN_RMWcc(op " %2, " arg0, var, cc, vcon (val))
+ __GEN_RMWcc(op __BINARY_RMWcc_ARG arg0, var, cc, \
+ __CLOBBERS_MEM, vcon (val))
-#endif /* defined(__GCC_ASM_FLAG_OUTPUTS__) || !defined(CC_HAVE_ASM_GOTO) */
+#define GEN_BINARY_SUFFIXED_RMWcc(op, suffix, var, vcon, val, arg0, cc) \
+ __GEN_RMWcc(op __BINARY_RMWcc_ARG arg0 "\n\t" suffix, var, cc, \
+ __CLOBBERS_MEM_CC_CX, vcon (val))
#endif /* _ASM_X86_RMWcc */
diff --git a/arch/x86/include/asm/rwsem.h b/arch/x86/include/asm/rwsem.h
index a34e0d4b957d..7116b7931c7b 100644
--- a/arch/x86/include/asm/rwsem.h
+++ b/arch/x86/include/asm/rwsem.h
@@ -103,7 +103,6 @@ static inline bool __down_read_trylock(struct rw_semaphore *sem)
({ \
long tmp; \
struct rw_semaphore* ret; \
- register void *__sp asm(_ASM_SP); \
\
asm volatile("# beginning down_write\n\t" \
LOCK_PREFIX " xadd %1,(%4)\n\t" \
@@ -114,7 +113,8 @@ static inline bool __down_read_trylock(struct rw_semaphore *sem)
" call " slow_path "\n" \
"1:\n" \
"# ending down_write" \
- : "+m" (sem->count), "=d" (tmp), "=a" (ret), "+r" (__sp) \
+ : "+m" (sem->count), "=d" (tmp), \
+ "=a" (ret), ASM_CALL_CONSTRAINT \
: "a" (sem), "1" (RWSEM_ACTIVE_WRITE_BIAS) \
: "memory", "cc"); \
ret; \
diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h
index 1549caa098f0..066aaf813141 100644
--- a/arch/x86/include/asm/segment.h
+++ b/arch/x86/include/asm/segment.h
@@ -238,9 +238,7 @@
#ifndef __ASSEMBLY__
extern const char early_idt_handler_array[NUM_EXCEPTION_VECTORS][EARLY_IDT_HANDLER_SIZE];
-#ifdef CONFIG_TRACING
-# define trace_early_idt_handler_array early_idt_handler_array
-#endif
+extern void early_ignore_irq(void);
/*
* Load a segment. Fall back on loading the zero segment if something goes
diff --git a/arch/x86/include/asm/set_memory.h b/arch/x86/include/asm/set_memory.h
index eaec6c364e42..cd71273ec49d 100644
--- a/arch/x86/include/asm/set_memory.h
+++ b/arch/x86/include/asm/set_memory.h
@@ -11,6 +11,7 @@
* Executability : eXeutable, NoteXecutable
* Read/Write : ReadOnly, ReadWrite
* Presence : NotPresent
+ * Encryption : Encrypted, Decrypted
*
* Within a category, the attributes are mutually exclusive.
*
@@ -42,6 +43,8 @@ int set_memory_wt(unsigned long addr, int numpages);
int set_memory_wb(unsigned long addr, int numpages);
int set_memory_np(unsigned long addr, int numpages);
int set_memory_4k(unsigned long addr, int numpages);
+int set_memory_encrypted(unsigned long addr, int numpages);
+int set_memory_decrypted(unsigned long addr, int numpages);
int set_memory_array_uc(unsigned long *addr, int addrinarray);
int set_memory_array_wc(unsigned long *addr, int addrinarray);
diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index ac1d5da14734..a65cf544686a 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -39,12 +39,12 @@ static inline void vsmp_init(void) { }
#endif
void setup_bios_corruption_check(void);
+void early_platform_quirks(void);
extern unsigned long saved_video_mode;
extern void reserve_standard_io_resources(void);
extern void i386_reserve_resources(void);
-extern void setup_default_timer_irq(void);
#ifdef CONFIG_X86_INTEL_MID
extern void x86_intel_mid_early_setup(void);
diff --git a/arch/x86/include/asm/special_insns.h b/arch/x86/include/asm/special_insns.h
index 12af3e35edfa..a24dfcf79f4a 100644
--- a/arch/x86/include/asm/special_insns.h
+++ b/arch/x86/include/asm/special_insns.h
@@ -39,7 +39,7 @@ static inline void native_write_cr2(unsigned long val)
asm volatile("mov %0,%%cr2": : "r" (val), "m" (__force_order));
}
-static inline unsigned long native_read_cr3(void)
+static inline unsigned long __native_read_cr3(void)
{
unsigned long val;
asm volatile("mov %%cr3,%0\n\t" : "=r" (val), "=m" (__force_order));
@@ -135,6 +135,11 @@ static inline void native_wbinvd(void)
extern asmlinkage void native_load_gs_index(unsigned);
+static inline unsigned long __read_cr4(void)
+{
+ return native_read_cr4();
+}
+
#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
#else
@@ -159,9 +164,13 @@ static inline void write_cr2(unsigned long x)
native_write_cr2(x);
}
-static inline unsigned long read_cr3(void)
+/*
+ * Careful! CR3 contains more than just an address. You probably want
+ * read_cr3_pa() instead.
+ */
+static inline unsigned long __read_cr3(void)
{
- return native_read_cr3();
+ return __native_read_cr3();
}
static inline void write_cr3(unsigned long x)
@@ -169,11 +178,6 @@ static inline void write_cr3(unsigned long x)
native_write_cr3(x);
}
-static inline unsigned long __read_cr4(void)
-{
- return native_read_cr4();
-}
-
static inline void __write_cr4(unsigned long x)
{
native_write_cr4(x);
diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h
index dcbd9bcce714..8abedf1d650e 100644
--- a/arch/x86/include/asm/stackprotector.h
+++ b/arch/x86/include/asm/stackprotector.h
@@ -74,6 +74,7 @@ static __always_inline void boot_init_stack_canary(void)
get_random_bytes(&canary, sizeof(canary));
tsc = rdtsc();
canary += tsc + (tsc << 32UL);
+ canary &= CANARY_MASK;
current->stack_canary = canary;
#ifdef CONFIG_X86_64
diff --git a/arch/x86/include/asm/string_32.h b/arch/x86/include/asm/string_32.h
index 3d3e8353ee5c..e371e7229042 100644
--- a/arch/x86/include/asm/string_32.h
+++ b/arch/x86/include/asm/string_32.h
@@ -142,7 +142,9 @@ static __always_inline void *__constant_memcpy(void *to, const void *from,
}
#define __HAVE_ARCH_MEMCPY
+extern void *memcpy(void *, const void *, size_t);
+#ifndef CONFIG_FORTIFY_SOURCE
#ifdef CONFIG_X86_USE_3DNOW
#include <asm/mmx.h>
@@ -195,11 +197,15 @@ static inline void *__memcpy3d(void *to, const void *from, size_t len)
#endif
#endif
+#endif /* !CONFIG_FORTIFY_SOURCE */
#define __HAVE_ARCH_MEMMOVE
void *memmove(void *dest, const void *src, size_t n);
+extern int memcmp(const void *, const void *, size_t);
+#ifndef CONFIG_FORTIFY_SOURCE
#define memcmp __builtin_memcmp
+#endif
#define __HAVE_ARCH_MEMCHR
extern void *memchr(const void *cs, int c, size_t count);
@@ -321,6 +327,8 @@ void *__constant_c_and_count_memset(void *s, unsigned long pattern,
: __memset_generic((s), (c), (count)))
#define __HAVE_ARCH_MEMSET
+extern void *memset(void *, int, size_t);
+#ifndef CONFIG_FORTIFY_SOURCE
#if (__GNUC__ >= 4)
#define memset(s, c, count) __builtin_memset(s, c, count)
#else
@@ -330,6 +338,31 @@ void *__constant_c_and_count_memset(void *s, unsigned long pattern,
(count)) \
: __memset((s), (c), (count)))
#endif
+#endif /* !CONFIG_FORTIFY_SOURCE */
+
+#define __HAVE_ARCH_MEMSET16
+static inline void *memset16(uint16_t *s, uint16_t v, size_t n)
+{
+ int d0, d1;
+ asm volatile("rep\n\t"
+ "stosw"
+ : "=&c" (d0), "=&D" (d1)
+ : "a" (v), "1" (s), "0" (n)
+ : "memory");
+ return s;
+}
+
+#define __HAVE_ARCH_MEMSET32
+static inline void *memset32(uint32_t *s, uint32_t v, size_t n)
+{
+ int d0, d1;
+ asm volatile("rep\n\t"
+ "stosl"
+ : "=&c" (d0), "=&D" (d1)
+ : "a" (v), "1" (s), "0" (n)
+ : "memory");
+ return s;
+}
/*
* find the first occurrence of byte 'c', or 1 past the area if none
diff --git a/arch/x86/include/asm/string_64.h b/arch/x86/include/asm/string_64.h
index 733bae07fb29..f372a70a523f 100644
--- a/arch/x86/include/asm/string_64.h
+++ b/arch/x86/include/asm/string_64.h
@@ -31,6 +31,7 @@ static __always_inline void *__inline_memcpy(void *to, const void *from, size_t
extern void *memcpy(void *to, const void *from, size_t len);
extern void *__memcpy(void *to, const void *from, size_t len);
+#ifndef CONFIG_FORTIFY_SOURCE
#ifndef CONFIG_KMEMCHECK
#if (__GNUC__ == 4 && __GNUC_MINOR__ < 3) || __GNUC__ < 4
#define memcpy(dst, src, len) \
@@ -51,11 +52,48 @@ extern void *__memcpy(void *to, const void *from, size_t len);
*/
#define memcpy(dst, src, len) __inline_memcpy((dst), (src), (len))
#endif
+#endif /* !CONFIG_FORTIFY_SOURCE */
#define __HAVE_ARCH_MEMSET
void *memset(void *s, int c, size_t n);
void *__memset(void *s, int c, size_t n);
+#define __HAVE_ARCH_MEMSET16
+static inline void *memset16(uint16_t *s, uint16_t v, size_t n)
+{
+ long d0, d1;
+ asm volatile("rep\n\t"
+ "stosw"
+ : "=&c" (d0), "=&D" (d1)
+ : "a" (v), "1" (s), "0" (n)
+ : "memory");
+ return s;
+}
+
+#define __HAVE_ARCH_MEMSET32
+static inline void *memset32(uint32_t *s, uint32_t v, size_t n)
+{
+ long d0, d1;
+ asm volatile("rep\n\t"
+ "stosl"
+ : "=&c" (d0), "=&D" (d1)
+ : "a" (v), "1" (s), "0" (n)
+ : "memory");
+ return s;
+}
+
+#define __HAVE_ARCH_MEMSET64
+static inline void *memset64(uint64_t *s, uint64_t v, size_t n)
+{
+ long d0, d1;
+ asm volatile("rep\n\t"
+ "stosq"
+ : "=&c" (d0), "=&D" (d1)
+ : "a" (v), "1" (s), "0" (n)
+ : "memory");
+ return s;
+}
+
#define __HAVE_ARCH_MEMMOVE
void *memmove(void *dest, const void *src, size_t count);
void *__memmove(void *dest, const void *src, size_t count);
@@ -77,6 +115,11 @@ int strcmp(const char *cs, const char *ct);
#define memcpy(dst, src, len) __memcpy(dst, src, len)
#define memmove(dst, src, len) __memmove(dst, src, len)
#define memset(s, c, n) __memset(s, c, n)
+
+#ifndef __NO_FORTIFY
+#define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */
+#endif
+
#endif
#define __HAVE_ARCH_MEMCPY_MCSAFE 1
@@ -109,6 +152,11 @@ memcpy_mcsafe(void *dst, const void *src, size_t cnt)
return 0;
}
+#ifdef CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE
+#define __HAVE_ARCH_MEMCPY_FLUSHCACHE 1
+void memcpy_flushcache(void *dst, const void *src, size_t cnt);
+#endif
+
#endif /* __KERNEL__ */
#endif /* _ASM_X86_STRING_64_H */
diff --git a/arch/x86/include/asm/suspend_64.h b/arch/x86/include/asm/suspend_64.h
index 6136a18152af..2bd96b4df140 100644
--- a/arch/x86/include/asm/suspend_64.h
+++ b/arch/x86/include/asm/suspend_64.h
@@ -42,8 +42,7 @@ struct saved_context {
set_debugreg((thread)->debugreg##register, register)
/* routines for saving/restoring kernel state */
-extern int acpi_save_state_mem(void);
-extern char core_restore_code;
-extern char restore_registers;
+extern char core_restore_code[];
+extern char restore_registers[];
#endif /* _ASM_X86_SUSPEND_64_H */
diff --git a/arch/x86/include/asm/svm.h b/arch/x86/include/asm/svm.h
index 14824fc78f7e..14835dd205a5 100644
--- a/arch/x86/include/asm/svm.h
+++ b/arch/x86/include/asm/svm.h
@@ -83,7 +83,7 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
u32 event_inj;
u32 event_inj_err;
u64 nested_cr3;
- u64 lbr_ctl;
+ u64 virt_ext;
u32 clean;
u32 reserved_5;
u64 next_rip;
@@ -107,6 +107,9 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
#define V_IRQ_SHIFT 8
#define V_IRQ_MASK (1 << V_IRQ_SHIFT)
+#define V_GIF_SHIFT 9
+#define V_GIF_MASK (1 << V_GIF_SHIFT)
+
#define V_INTR_PRIO_SHIFT 16
#define V_INTR_PRIO_MASK (0x0f << V_INTR_PRIO_SHIFT)
@@ -116,9 +119,15 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
#define V_INTR_MASKING_SHIFT 24
#define V_INTR_MASKING_MASK (1 << V_INTR_MASKING_SHIFT)
+#define V_GIF_ENABLE_SHIFT 25
+#define V_GIF_ENABLE_MASK (1 << V_GIF_ENABLE_SHIFT)
+
#define AVIC_ENABLE_SHIFT 31
#define AVIC_ENABLE_MASK (1 << AVIC_ENABLE_SHIFT)
+#define LBR_CTL_ENABLE_MASK BIT_ULL(0)
+#define VIRTUAL_VMLOAD_VMSAVE_ENABLE_MASK BIT_ULL(1)
+
#define SVM_INTERRUPT_SHADOW_MASK 1
#define SVM_IOIO_STR_SHIFT 2
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index e00e1bd6e7b3..89e7eeb5cec1 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -98,6 +98,7 @@ struct thread_info {
#define TIF_SYSCALL_TRACEPOINT 28 /* syscall tracepoint instrumentation */
#define TIF_ADDR32 29 /* 32-bit address space on 64 bits */
#define TIF_X32 30 /* 32-bit native x86-64 binary */
+#define TIF_FSCHECK 31 /* Check FS is USER_DS on return */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
@@ -122,6 +123,7 @@ struct thread_info {
#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
#define _TIF_ADDR32 (1 << TIF_ADDR32)
#define _TIF_X32 (1 << TIF_X32)
+#define _TIF_FSCHECK (1 << TIF_FSCHECK)
/*
* work to do in syscall_trace_enter(). Also includes TIF_NOHZ for
@@ -137,7 +139,8 @@ struct thread_info {
(_TIF_SYSCALL_TRACE | _TIF_NOTIFY_RESUME | _TIF_SIGPENDING | \
_TIF_NEED_RESCHED | _TIF_SINGLESTEP | _TIF_SYSCALL_EMU | \
_TIF_SYSCALL_AUDIT | _TIF_USER_RETURN_NOTIFY | _TIF_UPROBE | \
- _TIF_PATCH_PENDING | _TIF_NOHZ | _TIF_SYSCALL_TRACEPOINT)
+ _TIF_PATCH_PENDING | _TIF_NOHZ | _TIF_SYSCALL_TRACEPOINT | \
+ _TIF_FSCHECK)
/* flags to check in __switch_to() */
#define _TIF_WORK_CTXSW \
@@ -155,17 +158,6 @@ struct thread_info {
*/
#ifndef __ASSEMBLY__
-static inline unsigned long current_stack_pointer(void)
-{
- unsigned long sp;
-#ifdef CONFIG_X86_64
- asm("mov %%rsp,%0" : "=g" (sp));
-#else
- asm("mov %%esp,%0" : "=g" (sp));
-#endif
- return sp;
-}
-
/*
* Walks up the stack frames to make sure that the specified object is
* entirely contained by a single stack frame.
diff --git a/arch/x86/include/asm/timer.h b/arch/x86/include/asm/timer.h
index 27e9f9d769b8..2016962103df 100644
--- a/arch/x86/include/asm/timer.h
+++ b/arch/x86/include/asm/timer.h
@@ -29,11 +29,9 @@ struct cyc2ns_data {
u32 cyc2ns_mul;
u32 cyc2ns_shift;
u64 cyc2ns_offset;
- u32 __count;
- /* u32 hole */
-}; /* 24 bytes -- do not grow */
+}; /* 16 bytes */
-extern struct cyc2ns_data *cyc2ns_read_begin(void);
-extern void cyc2ns_read_end(struct cyc2ns_data *);
+extern void cyc2ns_read_begin(struct cyc2ns_data *);
+extern void cyc2ns_read_end(void);
#endif /* _ASM_X86_TIMER_H */
diff --git a/arch/x86/include/asm/tlb.h b/arch/x86/include/asm/tlb.h
index c7797307fc2b..79a4ca6a9606 100644
--- a/arch/x86/include/asm/tlb.h
+++ b/arch/x86/include/asm/tlb.h
@@ -15,4 +15,18 @@
#include <asm-generic/tlb.h>
+/*
+ * While x86 architecture in general requires an IPI to perform TLB
+ * shootdown, enablement code for several hypervisors overrides
+ * .flush_tlb_others hook in pv_mmu_ops and implements it by issuing
+ * a hypercall. To keep software pagetable walkers safe in this case we
+ * switch to RCU based table free (HAVE_RCU_TABLE_FREE). See the comment
+ * below 'ifdef CONFIG_HAVE_RCU_TABLE_FREE' in include/asm-generic/tlb.h
+ * for more details.
+ */
+static inline void __tlb_remove_table(void *table)
+{
+ free_page_and_swap_cache(table);
+}
+
#endif /* _ASM_X86_TLB_H */
diff --git a/arch/x86/include/asm/tlbbatch.h b/arch/x86/include/asm/tlbbatch.h
new file mode 100644
index 000000000000..f4a6ff352a0e
--- /dev/null
+++ b/arch/x86/include/asm/tlbbatch.h
@@ -0,0 +1,14 @@
+#ifndef _ARCH_X86_TLBBATCH_H
+#define _ARCH_X86_TLBBATCH_H
+
+#include <linux/cpumask.h>
+
+struct arch_tlbflush_unmap_batch {
+ /*
+ * Each bit set is a CPU that potentially has a TLB entry for one of
+ * the PFNs being flushed..
+ */
+ struct cpumask cpumask;
+};
+
+#endif /* _ARCH_X86_TLBBATCH_H */
diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h
index 6ed9ea469b48..c4aed0de565e 100644
--- a/arch/x86/include/asm/tlbflush.h
+++ b/arch/x86/include/asm/tlbflush.h
@@ -7,6 +7,7 @@
#include <asm/processor.h>
#include <asm/cpufeature.h>
#include <asm/special_insns.h>
+#include <asm/smp.h>
static inline void __invpcid(unsigned long pcid, unsigned long addr,
unsigned long type)
@@ -56,6 +57,23 @@ static inline void invpcid_flush_all_nonglobals(void)
__invpcid(0, 0, INVPCID_TYPE_ALL_NON_GLOBAL);
}
+static inline u64 inc_mm_tlb_gen(struct mm_struct *mm)
+{
+ u64 new_tlb_gen;
+
+ /*
+ * Bump the generation count. This also serves as a full barrier
+ * that synchronizes with switch_mm(): callers are required to order
+ * their read of mm_cpumask after their writes to the paging
+ * structures.
+ */
+ smp_mb__before_atomic();
+ new_tlb_gen = atomic64_inc_return(&mm->context.tlb_gen);
+ smp_mb__after_atomic();
+
+ return new_tlb_gen;
+}
+
#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
#else
@@ -64,17 +82,87 @@ static inline void invpcid_flush_all_nonglobals(void)
#define __flush_tlb_single(addr) __native_flush_tlb_single(addr)
#endif
+static inline bool tlb_defer_switch_to_init_mm(void)
+{
+ /*
+ * If we have PCID, then switching to init_mm is reasonably
+ * fast. If we don't have PCID, then switching to init_mm is
+ * quite slow, so we try to defer it in the hopes that we can
+ * avoid it entirely. The latter approach runs the risk of
+ * receiving otherwise unnecessary IPIs.
+ *
+ * This choice is just a heuristic. The tlb code can handle this
+ * function returning true or false regardless of whether we have
+ * PCID.
+ */
+ return !static_cpu_has(X86_FEATURE_PCID);
+}
+
+/*
+ * 6 because 6 should be plenty and struct tlb_state will fit in
+ * two cache lines.
+ */
+#define TLB_NR_DYN_ASIDS 6
+
+struct tlb_context {
+ u64 ctx_id;
+ u64 tlb_gen;
+};
+
struct tlb_state {
-#ifdef CONFIG_SMP
- struct mm_struct *active_mm;
- int state;
-#endif
+ /*
+ * cpu_tlbstate.loaded_mm should match CR3 whenever interrupts
+ * are on. This means that it may not match current->active_mm,
+ * which will contain the previous user mm when we're in lazy TLB
+ * mode even if we've already switched back to swapper_pg_dir.
+ */
+ struct mm_struct *loaded_mm;
+ u16 loaded_mm_asid;
+ u16 next_asid;
+
+ /*
+ * We can be in one of several states:
+ *
+ * - Actively using an mm. Our CPU's bit will be set in
+ * mm_cpumask(loaded_mm) and is_lazy == false;
+ *
+ * - Not using a real mm. loaded_mm == &init_mm. Our CPU's bit
+ * will not be set in mm_cpumask(&init_mm) and is_lazy == false.
+ *
+ * - Lazily using a real mm. loaded_mm != &init_mm, our bit
+ * is set in mm_cpumask(loaded_mm), but is_lazy == true.
+ * We're heuristically guessing that the CR3 load we
+ * skipped more than makes up for the overhead added by
+ * lazy mode.
+ */
+ bool is_lazy;
/*
* Access to this CR4 shadow and to H/W CR4 is protected by
* disabling interrupts when modifying either one.
*/
unsigned long cr4;
+
+ /*
+ * This is a list of all contexts that might exist in the TLB.
+ * There is one per ASID that we use, and the ASID (what the
+ * CPU calls PCID) is the index into ctxts.
+ *
+ * For each context, ctx_id indicates which mm the TLB's user
+ * entries came from. As an invariant, the TLB will never
+ * contain entries that are out-of-date as when that mm reached
+ * the tlb_gen in the list.
+ *
+ * To be clear, this means that it's legal for the TLB code to
+ * flush the TLB without updating tlb_gen. This can happen
+ * (for now, at least) due to paravirt remote flushes.
+ *
+ * NB: context 0 is a bit special, since it's also used by
+ * various bits of init code. This is fine -- code that
+ * isn't aware of PCID will end up harmlessly flushing
+ * context 0.
+ */
+ struct tlb_context ctxs[TLB_NR_DYN_ASIDS];
};
DECLARE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate);
@@ -143,6 +231,8 @@ static inline void cr4_set_bits_and_update_boot(unsigned long mask)
cr4_set_bits(mask);
}
+extern void initialize_tlbstate_and_flush(void);
+
static inline void __native_flush_tlb(void)
{
/*
@@ -151,7 +241,7 @@ static inline void __native_flush_tlb(void)
* back:
*/
preempt_disable();
- native_write_cr3(native_read_cr3());
+ native_write_cr3(__native_read_cr3());
preempt_enable();
}
@@ -202,6 +292,14 @@ static inline void __flush_tlb_all(void)
__flush_tlb_global();
else
__flush_tlb();
+
+ /*
+ * Note: if we somehow had PCID but not PGE, then this wouldn't work --
+ * we'd end up flushing kernel translations for the current ASID but
+ * we might fail to flush kernel translations for other cached ASIDs.
+ *
+ * To avoid this issue, we force PCID off if PGE is off.
+ */
}
static inline void __flush_tlb_one(unsigned long addr)
@@ -220,84 +318,33 @@ static inline void __flush_tlb_one(unsigned long addr)
* - flush_tlb_page(vma, vmaddr) flushes one page
* - flush_tlb_range(vma, start, end) flushes a range of pages
* - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
- * - flush_tlb_others(cpumask, mm, start, end) flushes TLBs on other cpus
+ * - flush_tlb_others(cpumask, info) flushes TLBs on other cpus
*
* ..but the i386 has somewhat limited tlb flushing capabilities,
* and page-granular flushes are available only on i486 and up.
*/
-
-#ifndef CONFIG_SMP
-
-/* "_up" is for UniProcessor.
- *
- * This is a helper for other header functions. *Not* intended to be called
- * directly. All global TLB flushes need to either call this, or to bump the
- * vm statistics themselves.
- */
-static inline void __flush_tlb_up(void)
-{
- count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ALL);
- __flush_tlb();
-}
-
-static inline void flush_tlb_all(void)
-{
- count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ALL);
- __flush_tlb_all();
-}
-
-static inline void local_flush_tlb(void)
-{
- __flush_tlb_up();
-}
-
-static inline void flush_tlb_mm(struct mm_struct *mm)
-{
- if (mm == current->active_mm)
- __flush_tlb_up();
-}
-
-static inline void flush_tlb_page(struct vm_area_struct *vma,
- unsigned long addr)
-{
- if (vma->vm_mm == current->active_mm)
- __flush_tlb_one(addr);
-}
-
-static inline void flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
-{
- if (vma->vm_mm == current->active_mm)
- __flush_tlb_up();
-}
-
-static inline void flush_tlb_mm_range(struct mm_struct *mm,
- unsigned long start, unsigned long end, unsigned long vmflag)
-{
- if (mm == current->active_mm)
- __flush_tlb_up();
-}
-
-static inline void native_flush_tlb_others(const struct cpumask *cpumask,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end)
-{
-}
-
-static inline void reset_lazy_tlbstate(void)
-{
-}
-
-static inline void flush_tlb_kernel_range(unsigned long start,
- unsigned long end)
-{
- flush_tlb_all();
-}
-
-#else /* SMP */
-
-#include <asm/smp.h>
+struct flush_tlb_info {
+ /*
+ * We support several kinds of flushes.
+ *
+ * - Fully flush a single mm. .mm will be set, .end will be
+ * TLB_FLUSH_ALL, and .new_tlb_gen will be the tlb_gen to
+ * which the IPI sender is trying to catch us up.
+ *
+ * - Partially flush a single mm. .mm will be set, .start and
+ * .end will indicate the range, and .new_tlb_gen will be set
+ * such that the changes between generation .new_tlb_gen-1 and
+ * .new_tlb_gen are entirely contained in the indicated range.
+ *
+ * - Fully flush all mms whose tlb_gens have been updated. .mm
+ * will be NULL, .end will be TLB_FLUSH_ALL, and .new_tlb_gen
+ * will be zero.
+ */
+ struct mm_struct *mm;
+ unsigned long start;
+ unsigned long end;
+ u64 new_tlb_gen;
+};
#define local_flush_tlb() __flush_tlb()
@@ -307,29 +354,30 @@ static inline void flush_tlb_kernel_range(unsigned long start,
flush_tlb_mm_range(vma->vm_mm, start, end, vma->vm_flags)
extern void flush_tlb_all(void);
-extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
extern void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start,
unsigned long end, unsigned long vmflag);
extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
-void native_flush_tlb_others(const struct cpumask *cpumask,
- struct mm_struct *mm,
- unsigned long start, unsigned long end);
+static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long a)
+{
+ flush_tlb_mm_range(vma->vm_mm, a, a + PAGE_SIZE, VM_NONE);
+}
-#define TLBSTATE_OK 1
-#define TLBSTATE_LAZY 2
+void native_flush_tlb_others(const struct cpumask *cpumask,
+ const struct flush_tlb_info *info);
-static inline void reset_lazy_tlbstate(void)
+static inline void arch_tlbbatch_add_mm(struct arch_tlbflush_unmap_batch *batch,
+ struct mm_struct *mm)
{
- this_cpu_write(cpu_tlbstate.state, 0);
- this_cpu_write(cpu_tlbstate.active_mm, &init_mm);
+ inc_mm_tlb_gen(mm);
+ cpumask_or(&batch->cpumask, &batch->cpumask, mm_cpumask(mm));
}
-#endif /* SMP */
+extern void arch_tlbbatch_flush(struct arch_tlbflush_unmap_batch *batch);
#ifndef CONFIG_PARAVIRT
-#define flush_tlb_others(mask, mm, start, end) \
- native_flush_tlb_others(mask, mm, start, end)
+#define flush_tlb_others(mask, info) \
+ native_flush_tlb_others(mask, info)
#endif
#endif /* _ASM_X86_TLBFLUSH_H */
diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h
index 6358a85e2270..c1d2a9892352 100644
--- a/arch/x86/include/asm/topology.h
+++ b/arch/x86/include/asm/topology.h
@@ -75,12 +75,6 @@ static inline const struct cpumask *cpumask_of_node(int node)
extern void setup_node_to_cpumask_map(void);
-/*
- * Returns the number of the node containing Node 'node'. This
- * architecture is flat, so it is a pretty simple function!
- */
-#define parent_node(node) (node)
-
#define pcibus_to_node(bus) __pcibus_to_node(bus)
extern int __node_distance(int, int);
diff --git a/arch/x86/include/asm/trace/common.h b/arch/x86/include/asm/trace/common.h
new file mode 100644
index 000000000000..57c8da027d99
--- /dev/null
+++ b/arch/x86/include/asm/trace/common.h
@@ -0,0 +1,16 @@
+#ifndef _ASM_TRACE_COMMON_H
+#define _ASM_TRACE_COMMON_H
+
+#ifdef CONFIG_TRACING
+DECLARE_STATIC_KEY_FALSE(trace_pagefault_key);
+#define trace_pagefault_enabled() \
+ static_branch_unlikely(&trace_pagefault_key)
+DECLARE_STATIC_KEY_FALSE(trace_resched_ipi_key);
+#define trace_resched_ipi_enabled() \
+ static_branch_unlikely(&trace_resched_ipi_key)
+#else
+static inline bool trace_pagefault_enabled(void) { return false; }
+static inline bool trace_resched_ipi_enabled(void) { return false; }
+#endif
+
+#endif
diff --git a/arch/x86/include/asm/trace/exceptions.h b/arch/x86/include/asm/trace/exceptions.h
index 2422b14c50a7..5665bf205b8d 100644
--- a/arch/x86/include/asm/trace/exceptions.h
+++ b/arch/x86/include/asm/trace/exceptions.h
@@ -5,9 +5,10 @@
#define _TRACE_PAGE_FAULT_H
#include <linux/tracepoint.h>
+#include <asm/trace/common.h>
-extern int trace_irq_vector_regfunc(void);
-extern void trace_irq_vector_unregfunc(void);
+extern int trace_pagefault_reg(void);
+extern void trace_pagefault_unreg(void);
DECLARE_EVENT_CLASS(x86_exceptions,
@@ -37,8 +38,7 @@ DEFINE_EVENT_FN(x86_exceptions, name, \
TP_PROTO(unsigned long address, struct pt_regs *regs, \
unsigned long error_code), \
TP_ARGS(address, regs, error_code), \
- trace_irq_vector_regfunc, \
- trace_irq_vector_unregfunc);
+ trace_pagefault_reg, trace_pagefault_unreg);
DEFINE_PAGE_FAULT_EVENT(page_fault_user);
DEFINE_PAGE_FAULT_EVENT(page_fault_kernel);
diff --git a/arch/x86/include/asm/trace/fpu.h b/arch/x86/include/asm/trace/fpu.h
index 342e59789fcd..39f7a27bef13 100644
--- a/arch/x86/include/asm/trace/fpu.h
+++ b/arch/x86/include/asm/trace/fpu.h
@@ -12,25 +12,22 @@ DECLARE_EVENT_CLASS(x86_fpu,
TP_STRUCT__entry(
__field(struct fpu *, fpu)
- __field(bool, fpregs_active)
- __field(bool, fpstate_active)
+ __field(bool, initialized)
__field(u64, xfeatures)
__field(u64, xcomp_bv)
),
TP_fast_assign(
__entry->fpu = fpu;
- __entry->fpregs_active = fpu->fpregs_active;
- __entry->fpstate_active = fpu->fpstate_active;
+ __entry->initialized = fpu->initialized;
if (boot_cpu_has(X86_FEATURE_OSXSAVE)) {
__entry->xfeatures = fpu->state.xsave.header.xfeatures;
__entry->xcomp_bv = fpu->state.xsave.header.xcomp_bv;
}
),
- TP_printk("x86/fpu: %p fpregs_active: %d fpstate_active: %d xfeatures: %llx xcomp_bv: %llx",
+ TP_printk("x86/fpu: %p initialized: %d xfeatures: %llx xcomp_bv: %llx",
__entry->fpu,
- __entry->fpregs_active,
- __entry->fpstate_active,
+ __entry->initialized,
__entry->xfeatures,
__entry->xcomp_bv
)
diff --git a/arch/x86/include/asm/trace/hyperv.h b/arch/x86/include/asm/trace/hyperv.h
new file mode 100644
index 000000000000..4253bca99989
--- /dev/null
+++ b/arch/x86/include/asm/trace/hyperv.h
@@ -0,0 +1,40 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM hyperv
+
+#if !defined(_TRACE_HYPERV_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_HYPERV_H
+
+#include <linux/tracepoint.h>
+
+#if IS_ENABLED(CONFIG_HYPERV)
+
+TRACE_EVENT(hyperv_mmu_flush_tlb_others,
+ TP_PROTO(const struct cpumask *cpus,
+ const struct flush_tlb_info *info),
+ TP_ARGS(cpus, info),
+ TP_STRUCT__entry(
+ __field(unsigned int, ncpus)
+ __field(struct mm_struct *, mm)
+ __field(unsigned long, addr)
+ __field(unsigned long, end)
+ ),
+ TP_fast_assign(__entry->ncpus = cpumask_weight(cpus);
+ __entry->mm = info->mm;
+ __entry->addr = info->start;
+ __entry->end = info->end;
+ ),
+ TP_printk("ncpus %d mm %p addr %lx, end %lx",
+ __entry->ncpus, __entry->mm,
+ __entry->addr, __entry->end)
+ );
+
+#endif /* CONFIG_HYPERV */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH asm/trace/
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE hyperv
+#endif /* _TRACE_HYPERV_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/arch/x86/include/asm/trace/irq_vectors.h b/arch/x86/include/asm/trace/irq_vectors.h
index 32dd6a9e343c..1599d394c8c1 100644
--- a/arch/x86/include/asm/trace/irq_vectors.h
+++ b/arch/x86/include/asm/trace/irq_vectors.h
@@ -5,9 +5,12 @@
#define _TRACE_IRQ_VECTORS_H
#include <linux/tracepoint.h>
+#include <asm/trace/common.h>
-extern int trace_irq_vector_regfunc(void);
-extern void trace_irq_vector_unregfunc(void);
+#ifdef CONFIG_X86_LOCAL_APIC
+
+extern int trace_resched_ipi_reg(void);
+extern void trace_resched_ipi_unreg(void);
DECLARE_EVENT_CLASS(x86_irq_vector,
@@ -28,15 +31,22 @@ DECLARE_EVENT_CLASS(x86_irq_vector,
#define DEFINE_IRQ_VECTOR_EVENT(name) \
DEFINE_EVENT_FN(x86_irq_vector, name##_entry, \
TP_PROTO(int vector), \
+ TP_ARGS(vector), NULL, NULL); \
+DEFINE_EVENT_FN(x86_irq_vector, name##_exit, \
+ TP_PROTO(int vector), \
+ TP_ARGS(vector), NULL, NULL);
+
+#define DEFINE_RESCHED_IPI_EVENT(name) \
+DEFINE_EVENT_FN(x86_irq_vector, name##_entry, \
+ TP_PROTO(int vector), \
TP_ARGS(vector), \
- trace_irq_vector_regfunc, \
- trace_irq_vector_unregfunc); \
+ trace_resched_ipi_reg, \
+ trace_resched_ipi_unreg); \
DEFINE_EVENT_FN(x86_irq_vector, name##_exit, \
TP_PROTO(int vector), \
TP_ARGS(vector), \
- trace_irq_vector_regfunc, \
- trace_irq_vector_unregfunc);
-
+ trace_resched_ipi_reg, \
+ trace_resched_ipi_unreg);
/*
* local_timer - called when entering/exiting a local timer interrupt
@@ -45,11 +55,6 @@ DEFINE_EVENT_FN(x86_irq_vector, name##_exit, \
DEFINE_IRQ_VECTOR_EVENT(local_timer);
/*
- * reschedule - called when entering/exiting a reschedule vector handler
- */
-DEFINE_IRQ_VECTOR_EVENT(reschedule);
-
-/*
* spurious_apic - called when entering/exiting a spurious apic vector handler
*/
DEFINE_IRQ_VECTOR_EVENT(spurious_apic);
@@ -65,6 +70,7 @@ DEFINE_IRQ_VECTOR_EVENT(error_apic);
*/
DEFINE_IRQ_VECTOR_EVENT(x86_platform_ipi);
+#ifdef CONFIG_IRQ_WORK
/*
* irq_work - called when entering/exiting a irq work interrupt
* vector handler
@@ -81,6 +87,18 @@ DEFINE_IRQ_VECTOR_EVENT(irq_work);
* 4) goto 1
*/
TRACE_EVENT_PERF_PERM(irq_work_exit, is_sampling_event(p_event) ? -EPERM : 0);
+#endif
+
+/*
+ * The ifdef is required because that tracepoint macro hell emits tracepoint
+ * code in files which include this header even if the tracepoint is not
+ * enabled. Brilliant stuff that.
+ */
+#ifdef CONFIG_SMP
+/*
+ * reschedule - called when entering/exiting a reschedule vector handler
+ */
+DEFINE_RESCHED_IPI_EVENT(reschedule);
/*
* call_function - called when entering/exiting a call function interrupt
@@ -93,24 +111,33 @@ DEFINE_IRQ_VECTOR_EVENT(call_function);
* single interrupt vector handler
*/
DEFINE_IRQ_VECTOR_EVENT(call_function_single);
+#endif
+#ifdef CONFIG_X86_MCE_THRESHOLD
/*
* threshold_apic - called when entering/exiting a threshold apic interrupt
* vector handler
*/
DEFINE_IRQ_VECTOR_EVENT(threshold_apic);
+#endif
+#ifdef CONFIG_X86_MCE_AMD
/*
* deferred_error_apic - called when entering/exiting a deferred apic interrupt
* vector handler
*/
DEFINE_IRQ_VECTOR_EVENT(deferred_error_apic);
+#endif
+#ifdef CONFIG_X86_THERMAL_VECTOR
/*
* thermal_apic - called when entering/exiting a thermal apic interrupt
* vector handler
*/
DEFINE_IRQ_VECTOR_EVENT(thermal_apic);
+#endif
+
+#endif /* CONFIG_X86_LOCAL_APIC */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index 01fd0a7f48cd..5545f6459bf5 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -13,9 +13,6 @@ asmlinkage void divide_error(void);
asmlinkage void debug(void);
asmlinkage void nmi(void);
asmlinkage void int3(void);
-asmlinkage void xen_debug(void);
-asmlinkage void xen_int3(void);
-asmlinkage void xen_stack_segment(void);
asmlinkage void overflow(void);
asmlinkage void bounds(void);
asmlinkage void invalid_op(void);
@@ -38,22 +35,29 @@ asmlinkage void machine_check(void);
#endif /* CONFIG_X86_MCE */
asmlinkage void simd_coprocessor_error(void);
-#ifdef CONFIG_TRACING
-asmlinkage void trace_page_fault(void);
-#define trace_stack_segment stack_segment
-#define trace_divide_error divide_error
-#define trace_bounds bounds
-#define trace_invalid_op invalid_op
-#define trace_device_not_available device_not_available
-#define trace_coprocessor_segment_overrun coprocessor_segment_overrun
-#define trace_invalid_TSS invalid_TSS
-#define trace_segment_not_present segment_not_present
-#define trace_general_protection general_protection
-#define trace_spurious_interrupt_bug spurious_interrupt_bug
-#define trace_coprocessor_error coprocessor_error
-#define trace_alignment_check alignment_check
-#define trace_simd_coprocessor_error simd_coprocessor_error
-#define trace_async_page_fault async_page_fault
+#if defined(CONFIG_X86_64) && defined(CONFIG_XEN_PV)
+asmlinkage void xen_divide_error(void);
+asmlinkage void xen_xendebug(void);
+asmlinkage void xen_xenint3(void);
+asmlinkage void xen_nmi(void);
+asmlinkage void xen_overflow(void);
+asmlinkage void xen_bounds(void);
+asmlinkage void xen_invalid_op(void);
+asmlinkage void xen_device_not_available(void);
+asmlinkage void xen_double_fault(void);
+asmlinkage void xen_coprocessor_segment_overrun(void);
+asmlinkage void xen_invalid_TSS(void);
+asmlinkage void xen_segment_not_present(void);
+asmlinkage void xen_stack_segment(void);
+asmlinkage void xen_general_protection(void);
+asmlinkage void xen_page_fault(void);
+asmlinkage void xen_spurious_interrupt_bug(void);
+asmlinkage void xen_coprocessor_error(void);
+asmlinkage void xen_alignment_check(void);
+#ifdef CONFIG_X86_MCE
+asmlinkage void xen_machine_check(void);
+#endif /* CONFIG_X86_MCE */
+asmlinkage void xen_simd_coprocessor_error(void);
#endif
dotraplinkage void do_divide_error(struct pt_regs *, long);
@@ -74,14 +78,6 @@ asmlinkage struct pt_regs *sync_regs(struct pt_regs *);
#endif
dotraplinkage void do_general_protection(struct pt_regs *, long);
dotraplinkage void do_page_fault(struct pt_regs *, unsigned long);
-#ifdef CONFIG_TRACING
-dotraplinkage void trace_do_page_fault(struct pt_regs *, unsigned long);
-#else
-static inline void trace_do_page_fault(struct pt_regs *regs, unsigned long error)
-{
- do_page_fault(regs, error);
-}
-#endif
dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long);
dotraplinkage void do_coprocessor_error(struct pt_regs *, long);
dotraplinkage void do_alignment_check(struct pt_regs *, long);
diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index a059aac9e937..4b892917edeb 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -26,7 +26,12 @@
#define get_ds() (KERNEL_DS)
#define get_fs() (current->thread.addr_limit)
-#define set_fs(x) (current->thread.addr_limit = (x))
+static inline void set_fs(mm_segment_t fs)
+{
+ current->thread.addr_limit = fs;
+ /* On user-mode return, check fs is correct */
+ set_thread_flag(TIF_FSCHECK);
+}
#define segment_eq(a, b) ((a).seg == (b).seg)
@@ -161,11 +166,11 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
({ \
int __ret_gu; \
register __inttype(*(ptr)) __val_gu asm("%"_ASM_DX); \
- register void *__sp asm(_ASM_SP); \
__chk_user_ptr(ptr); \
might_fault(); \
asm volatile("call __get_user_%P4" \
- : "=a" (__ret_gu), "=r" (__val_gu), "+r" (__sp) \
+ : "=a" (__ret_gu), "=r" (__val_gu), \
+ ASM_CALL_CONSTRAINT \
: "0" (ptr), "i" (sizeof(*(ptr)))); \
(x) = (__force __typeof__(*(ptr))) __val_gu; \
__builtin_expect(__ret_gu, 0); \
@@ -332,7 +337,7 @@ do { \
_ASM_EXTABLE(1b, 4b) \
_ASM_EXTABLE(2b, 4b) \
: "=r" (retval), "=&A"(x) \
- : "m" (__m(__ptr)), "m" __m(((u32 *)(__ptr)) + 1), \
+ : "m" (__m(__ptr)), "m" __m(((u32 __user *)(__ptr)) + 1), \
"i" (errret), "0" (retval)); \
})
@@ -535,9 +540,6 @@ struct __large_struct { unsigned long buf[100]; };
#define __put_user(x, ptr) \
__put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
-#define __get_user_unaligned __get_user
-#define __put_user_unaligned __put_user
-
/*
* {get|put}_user_try and catch
*
@@ -565,7 +567,6 @@ copy_from_user_nmi(void *to, const void __user *from, unsigned long n);
extern __must_check long
strncpy_from_user(char *dst, const char __user *src, long count);
-extern __must_check long strlen_user(const char __user *str);
extern __must_check long strnlen_user(const char __user *str, long n);
unsigned long __must_check clear_user(void __user *mem, unsigned long len);
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index c5504b9a472e..b16f6a1d8b26 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -171,6 +171,10 @@ unsigned long raw_copy_in_user(void __user *dst, const void __user *src, unsigne
extern long __copy_user_nocache(void *dst, const void __user *src,
unsigned size, int zerorest);
+extern long __copy_user_flushcache(void *dst, const void __user *src, unsigned size);
+extern void memcpy_page_flushcache(char *to, struct page *page, size_t offset,
+ size_t len);
+
static inline int
__copy_from_user_inatomic_nocache(void *dst, const void __user *src,
unsigned size)
@@ -179,6 +183,13 @@ __copy_from_user_inatomic_nocache(void *dst, const void __user *src,
return __copy_user_nocache(dst, src, size, 0);
}
+static inline int
+__copy_from_user_flushcache(void *dst, const void __user *src, unsigned size)
+{
+ kasan_check_write(dst, size);
+ return __copy_user_flushcache(dst, src, size);
+}
+
unsigned long
copy_user_handle_tail(char *to, char *from, unsigned len);
diff --git a/arch/x86/include/asm/unwind.h b/arch/x86/include/asm/unwind.h
index e6676495b125..e9f793e2df7a 100644
--- a/arch/x86/include/asm/unwind.h
+++ b/arch/x86/include/asm/unwind.h
@@ -12,11 +12,14 @@ struct unwind_state {
struct task_struct *task;
int graph_idx;
bool error;
-#ifdef CONFIG_FRAME_POINTER
+#if defined(CONFIG_ORC_UNWINDER)
+ bool signal, full_regs;
+ unsigned long sp, bp, ip;
+ struct pt_regs *regs;
+#elif defined(CONFIG_FRAME_POINTER_UNWINDER)
bool got_irq;
- unsigned long *bp, *orig_sp;
+ unsigned long *bp, *orig_sp, ip;
struct pt_regs *regs;
- unsigned long ip;
#else
unsigned long *sp;
#endif
@@ -24,41 +27,30 @@ struct unwind_state {
void __unwind_start(struct unwind_state *state, struct task_struct *task,
struct pt_regs *regs, unsigned long *first_frame);
-
bool unwind_next_frame(struct unwind_state *state);
-
unsigned long unwind_get_return_address(struct unwind_state *state);
+unsigned long *unwind_get_return_address_ptr(struct unwind_state *state);
static inline bool unwind_done(struct unwind_state *state)
{
return state->stack_info.type == STACK_TYPE_UNKNOWN;
}
-static inline
-void unwind_start(struct unwind_state *state, struct task_struct *task,
- struct pt_regs *regs, unsigned long *first_frame)
-{
- first_frame = first_frame ? : get_stack_pointer(task, regs);
-
- __unwind_start(state, task, regs, first_frame);
-}
-
static inline bool unwind_error(struct unwind_state *state)
{
return state->error;
}
-#ifdef CONFIG_FRAME_POINTER
-
static inline
-unsigned long *unwind_get_return_address_ptr(struct unwind_state *state)
+void unwind_start(struct unwind_state *state, struct task_struct *task,
+ struct pt_regs *regs, unsigned long *first_frame)
{
- if (unwind_done(state))
- return NULL;
+ first_frame = first_frame ? : get_stack_pointer(task, regs);
- return state->regs ? &state->regs->ip : state->bp + 1;
+ __unwind_start(state, task, regs, first_frame);
}
+#if defined(CONFIG_ORC_UNWINDER) || defined(CONFIG_FRAME_POINTER_UNWINDER)
static inline struct pt_regs *unwind_get_entry_regs(struct unwind_state *state)
{
if (unwind_done(state))
@@ -66,20 +58,46 @@ static inline struct pt_regs *unwind_get_entry_regs(struct unwind_state *state)
return state->regs;
}
-
-#else /* !CONFIG_FRAME_POINTER */
-
-static inline
-unsigned long *unwind_get_return_address_ptr(struct unwind_state *state)
+#else
+static inline struct pt_regs *unwind_get_entry_regs(struct unwind_state *state)
{
return NULL;
}
+#endif
-static inline struct pt_regs *unwind_get_entry_regs(struct unwind_state *state)
+#ifdef CONFIG_ORC_UNWINDER
+void unwind_init(void);
+void unwind_module_init(struct module *mod, void *orc_ip, size_t orc_ip_size,
+ void *orc, size_t orc_size);
+#else
+static inline void unwind_init(void) {}
+static inline
+void unwind_module_init(struct module *mod, void *orc_ip, size_t orc_ip_size,
+ void *orc, size_t orc_size) {}
+#endif
+
+/*
+ * This disables KASAN checking when reading a value from another task's stack,
+ * since the other task could be running on another CPU and could have poisoned
+ * the stack in the meantime.
+ */
+#define READ_ONCE_TASK_STACK(task, x) \
+({ \
+ unsigned long val; \
+ if (task == current) \
+ val = READ_ONCE(x); \
+ else \
+ val = READ_ONCE_NOCHECK(x); \
+ val; \
+})
+
+static inline bool task_on_another_cpu(struct task_struct *task)
{
- return NULL;
+#ifdef CONFIG_SMP
+ return task != current && task->on_cpu;
+#else
+ return false;
+#endif
}
-#endif /* CONFIG_FRAME_POINTER */
-
#endif /* _ASM_X86_UNWIND_H */
diff --git a/arch/x86/include/asm/unwind_hints.h b/arch/x86/include/asm/unwind_hints.h
new file mode 100644
index 000000000000..bae46fc6b9de
--- /dev/null
+++ b/arch/x86/include/asm/unwind_hints.h
@@ -0,0 +1,105 @@
+#ifndef _ASM_X86_UNWIND_HINTS_H
+#define _ASM_X86_UNWIND_HINTS_H
+
+#include "orc_types.h"
+
+#ifdef __ASSEMBLY__
+
+/*
+ * In asm, there are two kinds of code: normal C-type callable functions and
+ * the rest. The normal callable functions can be called by other code, and
+ * don't do anything unusual with the stack. Such normal callable functions
+ * are annotated with the ENTRY/ENDPROC macros. Most asm code falls in this
+ * category. In this case, no special debugging annotations are needed because
+ * objtool can automatically generate the ORC data for the ORC unwinder to read
+ * at runtime.
+ *
+ * Anything which doesn't fall into the above category, such as syscall and
+ * interrupt handlers, tends to not be called directly by other functions, and
+ * often does unusual non-C-function-type things with the stack pointer. Such
+ * code needs to be annotated such that objtool can understand it. The
+ * following CFI hint macros are for this type of code.
+ *
+ * These macros provide hints to objtool about the state of the stack at each
+ * instruction. Objtool starts from the hints and follows the code flow,
+ * making automatic CFI adjustments when it sees pushes and pops, filling out
+ * the debuginfo as necessary. It will also warn if it sees any
+ * inconsistencies.
+ */
+.macro UNWIND_HINT sp_reg=ORC_REG_SP sp_offset=0 type=ORC_TYPE_CALL
+#ifdef CONFIG_STACK_VALIDATION
+.Lunwind_hint_ip_\@:
+ .pushsection .discard.unwind_hints
+ /* struct unwind_hint */
+ .long .Lunwind_hint_ip_\@ - .
+ .short \sp_offset
+ .byte \sp_reg
+ .byte \type
+ .popsection
+#endif
+.endm
+
+.macro UNWIND_HINT_EMPTY
+ UNWIND_HINT sp_reg=ORC_REG_UNDEFINED
+.endm
+
+.macro UNWIND_HINT_REGS base=%rsp offset=0 indirect=0 extra=1 iret=0
+ .if \base == %rsp
+ .if \indirect
+ .set sp_reg, ORC_REG_SP_INDIRECT
+ .else
+ .set sp_reg, ORC_REG_SP
+ .endif
+ .elseif \base == %rbp
+ .set sp_reg, ORC_REG_BP
+ .elseif \base == %rdi
+ .set sp_reg, ORC_REG_DI
+ .elseif \base == %rdx
+ .set sp_reg, ORC_REG_DX
+ .elseif \base == %r10
+ .set sp_reg, ORC_REG_R10
+ .else
+ .error "UNWIND_HINT_REGS: bad base register"
+ .endif
+
+ .set sp_offset, \offset
+
+ .if \iret
+ .set type, ORC_TYPE_REGS_IRET
+ .elseif \extra == 0
+ .set type, ORC_TYPE_REGS_IRET
+ .set sp_offset, \offset + (16*8)
+ .else
+ .set type, ORC_TYPE_REGS
+ .endif
+
+ UNWIND_HINT sp_reg=sp_reg sp_offset=sp_offset type=type
+.endm
+
+.macro UNWIND_HINT_IRET_REGS base=%rsp offset=0
+ UNWIND_HINT_REGS base=\base offset=\offset iret=1
+.endm
+
+.macro UNWIND_HINT_FUNC sp_offset=8
+ UNWIND_HINT sp_offset=\sp_offset
+.endm
+
+#else /* !__ASSEMBLY__ */
+
+#define UNWIND_HINT(sp_reg, sp_offset, type) \
+ "987: \n\t" \
+ ".pushsection .discard.unwind_hints\n\t" \
+ /* struct unwind_hint */ \
+ ".long 987b - .\n\t" \
+ ".short " __stringify(sp_offset) "\n\t" \
+ ".byte " __stringify(sp_reg) "\n\t" \
+ ".byte " __stringify(type) "\n\t" \
+ ".popsection\n\t"
+
+#define UNWIND_HINT_SAVE UNWIND_HINT(0, 0, UNWIND_HINT_TYPE_SAVE)
+
+#define UNWIND_HINT_RESTORE UNWIND_HINT(0, 0, UNWIND_HINT_TYPE_RESTORE)
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_X86_UNWIND_HINTS_H */
diff --git a/arch/x86/include/asm/uv/uv.h b/arch/x86/include/asm/uv/uv.h
index 6686820feae9..b5a32231abd8 100644
--- a/arch/x86/include/asm/uv/uv.h
+++ b/arch/x86/include/asm/uv/uv.h
@@ -1,6 +1,8 @@
#ifndef _ASM_X86_UV_UV_H
#define _ASM_X86_UV_UV_H
+#include <asm/tlbflush.h>
+
enum uv_system_type {UV_NONE, UV_LEGACY_APIC, UV_X2APIC, UV_NON_UNIQUE_APIC};
struct cpumask;
@@ -15,10 +17,7 @@ extern void uv_cpu_init(void);
extern void uv_nmi_init(void);
extern void uv_system_init(void);
extern const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end,
- unsigned int cpu);
+ const struct flush_tlb_info *info);
#else /* X86_UV */
@@ -28,8 +27,8 @@ static inline int is_uv_hubless(void) { return 0; }
static inline void uv_cpu_init(void) { }
static inline void uv_system_init(void) { }
static inline const struct cpumask *
-uv_flush_tlb_others(const struct cpumask *cpumask, struct mm_struct *mm,
- unsigned long start, unsigned long end, unsigned int cpu)
+uv_flush_tlb_others(const struct cpumask *cpumask,
+ const struct flush_tlb_info *info)
{ return cpumask; }
#endif /* X86_UV */
diff --git a/arch/x86/include/asm/vga.h b/arch/x86/include/asm/vga.h
index c4b9dc2f67c5..9f42beefc67a 100644
--- a/arch/x86/include/asm/vga.h
+++ b/arch/x86/include/asm/vga.h
@@ -7,12 +7,24 @@
#ifndef _ASM_X86_VGA_H
#define _ASM_X86_VGA_H
+#include <asm/set_memory.h>
+
/*
* On the PC, we can just recalculate addresses and then
* access the videoram directly without any black magic.
+ * To support memory encryption however, we need to access
+ * the videoram as decrypted memory.
*/
-#define VGA_MAP_MEM(x, s) (unsigned long)phys_to_virt(x)
+#define VGA_MAP_MEM(x, s) \
+({ \
+ unsigned long start = (unsigned long)phys_to_virt(x); \
+ \
+ if (IS_ENABLED(CONFIG_AMD_MEM_ENCRYPT)) \
+ set_memory_decrypted(start, (s) >> PAGE_SHIFT); \
+ \
+ start; \
+})
#define vga_readb(x) (*(x))
#define vga_writeb(x, y) (*(y) = (x))
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index 35cd06f636ab..caec8417539f 100644
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h
@@ -72,6 +72,7 @@
#define SECONDARY_EXEC_PAUSE_LOOP_EXITING 0x00000400
#define SECONDARY_EXEC_RDRAND 0x00000800
#define SECONDARY_EXEC_ENABLE_INVPCID 0x00001000
+#define SECONDARY_EXEC_ENABLE_VMFUNC 0x00002000
#define SECONDARY_EXEC_SHADOW_VMCS 0x00004000
#define SECONDARY_EXEC_RDSEED 0x00010000
#define SECONDARY_EXEC_ENABLE_PML 0x00020000
@@ -114,6 +115,10 @@
#define VMX_MISC_SAVE_EFER_LMA 0x00000020
#define VMX_MISC_ACTIVITY_HLT 0x00000040
+/* VMFUNC functions */
+#define VMX_VMFUNC_EPTP_SWITCHING 0x00000001
+#define VMFUNC_EPTP_ENTRIES 512
+
static inline u32 vmx_basic_vmcs_revision_id(u64 vmx_basic)
{
return vmx_basic & GENMASK_ULL(30, 0);
@@ -187,6 +192,8 @@ enum vmcs_field {
APIC_ACCESS_ADDR_HIGH = 0x00002015,
POSTED_INTR_DESC_ADDR = 0x00002016,
POSTED_INTR_DESC_ADDR_HIGH = 0x00002017,
+ VM_FUNCTION_CONTROL = 0x00002018,
+ VM_FUNCTION_CONTROL_HIGH = 0x00002019,
EPT_POINTER = 0x0000201a,
EPT_POINTER_HIGH = 0x0000201b,
EOI_EXIT_BITMAP0 = 0x0000201c,
@@ -197,6 +204,8 @@ enum vmcs_field {
EOI_EXIT_BITMAP2_HIGH = 0x00002021,
EOI_EXIT_BITMAP3 = 0x00002022,
EOI_EXIT_BITMAP3_HIGH = 0x00002023,
+ EPTP_LIST_ADDRESS = 0x00002024,
+ EPTP_LIST_ADDRESS_HIGH = 0x00002025,
VMREAD_BITMAP = 0x00002026,
VMWRITE_BITMAP = 0x00002028,
XSS_EXIT_BITMAP = 0x0000202C,
@@ -444,6 +453,7 @@ enum vmcs_field {
#define VMX_EPT_EXECUTE_ONLY_BIT (1ull)
#define VMX_EPT_PAGE_WALK_4_BIT (1ull << 6)
+#define VMX_EPT_PAGE_WALK_5_BIT (1ull << 7)
#define VMX_EPTP_UC_BIT (1ull << 8)
#define VMX_EPTP_WB_BIT (1ull << 14)
#define VMX_EPT_2MB_PAGE_BIT (1ull << 16)
@@ -459,12 +469,14 @@ enum vmcs_field {
#define VMX_VPID_EXTENT_GLOBAL_CONTEXT_BIT (1ull << 10) /* (42 - 32) */
#define VMX_VPID_EXTENT_SINGLE_NON_GLOBAL_BIT (1ull << 11) /* (43 - 32) */
-#define VMX_EPT_DEFAULT_GAW 3
-#define VMX_EPT_MAX_GAW 0x4
#define VMX_EPT_MT_EPTE_SHIFT 3
-#define VMX_EPT_GAW_EPTP_SHIFT 3
-#define VMX_EPT_AD_ENABLE_BIT (1ull << 6)
-#define VMX_EPT_DEFAULT_MT 0x6ull
+#define VMX_EPTP_PWL_MASK 0x38ull
+#define VMX_EPTP_PWL_4 0x18ull
+#define VMX_EPTP_PWL_5 0x20ull
+#define VMX_EPTP_AD_ENABLE_BIT (1ull << 6)
+#define VMX_EPTP_MT_MASK 0x7ull
+#define VMX_EPTP_MT_WB 0x6ull
+#define VMX_EPTP_MT_UC 0x0ull
#define VMX_EPT_READABLE_MASK 0x1ull
#define VMX_EPT_WRITABLE_MASK 0x2ull
#define VMX_EPT_EXECUTABLE_MASK 0x4ull
diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h
index f6d20f6cca12..7cb282e9e587 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -43,6 +43,7 @@
#include <asm/page.h>
#include <asm/pgtable.h>
+#include <asm/smap.h>
#include <xen/interface/xen.h>
#include <xen/interface/sched.h>
@@ -50,6 +51,8 @@
#include <xen/interface/platform.h>
#include <xen/interface/xen-mca.h>
+struct xen_dm_op_buf;
+
/*
* The hypercall asms have to meet several constraints:
* - Work on 32- and 64-bit.
@@ -110,10 +113,9 @@ extern struct { char _entry[32]; } hypercall_page[];
register unsigned long __arg2 asm(__HYPERCALL_ARG2REG) = __arg2; \
register unsigned long __arg3 asm(__HYPERCALL_ARG3REG) = __arg3; \
register unsigned long __arg4 asm(__HYPERCALL_ARG4REG) = __arg4; \
- register unsigned long __arg5 asm(__HYPERCALL_ARG5REG) = __arg5; \
- register void *__sp asm(_ASM_SP);
+ register unsigned long __arg5 asm(__HYPERCALL_ARG5REG) = __arg5;
-#define __HYPERCALL_0PARAM "=r" (__res), "+r" (__sp)
+#define __HYPERCALL_0PARAM "=r" (__res), ASM_CALL_CONSTRAINT
#define __HYPERCALL_1PARAM __HYPERCALL_0PARAM, "+r" (__arg1)
#define __HYPERCALL_2PARAM __HYPERCALL_1PARAM, "+r" (__arg2)
#define __HYPERCALL_3PARAM __HYPERCALL_2PARAM, "+r" (__arg3)
@@ -214,10 +216,12 @@ privcmd_call(unsigned call,
__HYPERCALL_DECLS;
__HYPERCALL_5ARG(a1, a2, a3, a4, a5);
+ stac();
asm volatile("call *%[call]"
: __HYPERCALL_5PARAM
: [call] "a" (&hypercall_page[call])
: __HYPERCALL_CLOBBER5);
+ clac();
return (long)__res;
}
@@ -474,9 +478,13 @@ HYPERVISOR_xenpmu_op(unsigned int op, void *arg)
static inline int
HYPERVISOR_dm_op(
- domid_t dom, unsigned int nr_bufs, void *bufs)
+ domid_t dom, unsigned int nr_bufs, struct xen_dm_op_buf *bufs)
{
- return _hypercall3(int, dm_op, dom, nr_bufs, bufs);
+ int ret;
+ stac();
+ ret = _hypercall3(int, dm_op, dom, nr_bufs, bufs);
+ clac();
+ return ret;
}
static inline void
@@ -548,10 +556,12 @@ MULTI_update_descriptor(struct multicall_entry *mcl, u64 maddr,
mcl->args[0] = maddr;
mcl->args[1] = *(unsigned long *)&desc;
} else {
+ u32 *p = (u32 *)&desc;
+
mcl->args[0] = maddr;
mcl->args[1] = maddr >> 32;
- mcl->args[2] = desc.a;
- mcl->args[3] = desc.b;
+ mcl->args[2] = *p++;
+ mcl->args[3] = *p;
}
trace_xen_mc_entry(mcl, sizeof(maddr) == sizeof(long) ? 2 : 4);
diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h
index 8417ef7c3885..07b6531813c4 100644
--- a/arch/x86/include/asm/xen/page.h
+++ b/arch/x86/include/asm/xen/page.h
@@ -158,9 +158,6 @@ static inline unsigned long mfn_to_pfn_no_overrides(unsigned long mfn)
unsigned long pfn;
int ret;
- if (xen_feature(XENFEAT_auto_translated_physmap))
- return mfn;
-
if (unlikely(mfn >= machine_to_phys_nr))
return ~0;
@@ -317,8 +314,6 @@ static inline pte_t __pte_ma(pteval_t x)
#define p4d_val_ma(x) ((x).p4d)
#endif
-void xen_set_domain_pte(pte_t *ptep, pte_t pteval, unsigned domid);
-
xmaddr_t arbitrary_virt_to_machine(void *address);
unsigned long arbitrary_virt_to_mfn(void *vaddr);
void make_lowmem_page_readonly(void *vaddr);
diff --git a/arch/x86/include/uapi/asm/Kbuild b/arch/x86/include/uapi/asm/Kbuild
index 83b6e9a0dce4..da1489cb64dc 100644
--- a/arch/x86/include/uapi/asm/Kbuild
+++ b/arch/x86/include/uapi/asm/Kbuild
@@ -1,6 +1,6 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
-genhdr-y += unistd_32.h
-genhdr-y += unistd_64.h
-genhdr-y += unistd_x32.h
+generated-y += unistd_32.h
+generated-y += unistd_64.h
+generated-y += unistd_x32.h
diff --git a/arch/x86/include/uapi/asm/bootparam.h b/arch/x86/include/uapi/asm/bootparam.h
index ddef37b16af2..66b8f93333d1 100644
--- a/arch/x86/include/uapi/asm/bootparam.h
+++ b/arch/x86/include/uapi/asm/bootparam.h
@@ -201,7 +201,7 @@ struct boot_params {
*
* @X86_SUBARCH_PC: Should be used if the hardware is enumerable using standard
* PC mechanisms (PCI, ACPI) and doesn't need a special boot flow.
- * @X86_SUBARCH_LGUEST: Used for x86 hypervisor demo, lguest
+ * @X86_SUBARCH_LGUEST: Used for x86 hypervisor demo, lguest, deprecated
* @X86_SUBARCH_XEN: Used for Xen guest types which follow the PV boot path,
* which start at asm startup_xen() entry point and later jump to the C
* xen_start_kernel() entry point. Both domU and dom0 type of guests are
diff --git a/arch/x86/include/uapi/asm/hyperv.h b/arch/x86/include/uapi/asm/hyperv.h
index 432df4b1baec..f65d12504e80 100644
--- a/arch/x86/include/uapi/asm/hyperv.h
+++ b/arch/x86/include/uapi/asm/hyperv.h
@@ -34,16 +34,10 @@
#define HV_X64_MSR_REFERENCE_TSC 0x40000021
/*
- * There is a single feature flag that signifies the presence of the MSR
- * that can be used to retrieve both the local APIC Timer frequency as
- * well as the TSC frequency.
+ * There is a single feature flag that signifies if the partition has access
+ * to MSRs with local APIC and TSC frequencies.
*/
-
-/* Local APIC timer frequency MSR (HV_X64_MSR_APIC_FREQUENCY) is available */
-#define HV_X64_MSR_APIC_FREQUENCY_AVAILABLE (1 << 11)
-
-/* TSC frequency MSR (HV_X64_MSR_TSC_FREQUENCY) is available */
-#define HV_X64_MSR_TSC_FREQUENCY_AVAILABLE (1 << 11)
+#define HV_X64_ACCESS_FREQUENCY_MSRS (1 << 11)
/*
* Basic SynIC MSRs (HV_X64_MSR_SCONTROL through HV_X64_MSR_EOM
@@ -73,6 +67,9 @@
*/
#define HV_X64_MSR_STAT_PAGES_AVAILABLE (1 << 8)
+/* Frequency MSRs available */
+#define HV_FEATURE_FREQUENCY_MSRS_AVAILABLE (1 << 8)
+
/* Crash MSR available */
#define HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE (1 << 10)
@@ -152,6 +149,9 @@
*/
#define HV_X64_DEPRECATING_AEOI_RECOMMENDED (1 << 9)
+/* Recommend using the newer ExProcessorMasks interface */
+#define HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED (1 << 11)
+
/*
* Crash notification flag.
*/
@@ -239,7 +239,11 @@
(~((1ull << HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT) - 1))
/* Declare the various hypercall operations. */
+#define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE 0x0002
+#define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST 0x0003
#define HVCALL_NOTIFY_LONG_SPIN_WAIT 0x0008
+#define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX 0x0013
+#define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX 0x0014
#define HVCALL_POST_MESSAGE 0x005c
#define HVCALL_SIGNAL_EVENT 0x005d
@@ -256,6 +260,16 @@
#define HV_PROCESSOR_POWER_STATE_C2 2
#define HV_PROCESSOR_POWER_STATE_C3 3
+#define HV_FLUSH_ALL_PROCESSORS BIT(0)
+#define HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES BIT(1)
+#define HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY BIT(2)
+#define HV_FLUSH_USE_EXTENDED_RANGE_FORMAT BIT(3)
+
+enum HV_GENERIC_SET_FORMAT {
+ HV_GENERIC_SET_SPARCE_4K,
+ HV_GENERIC_SET_ALL,
+};
+
/* hypercall status code */
#define HV_STATUS_SUCCESS 0
#define HV_STATUS_INVALID_HYPERCALL_CODE 2
diff --git a/arch/x86/include/uapi/asm/kvm_para.h b/arch/x86/include/uapi/asm/kvm_para.h
index cff0bb6556f8..a965e5b0d328 100644
--- a/arch/x86/include/uapi/asm/kvm_para.h
+++ b/arch/x86/include/uapi/asm/kvm_para.h
@@ -67,6 +67,7 @@ struct kvm_clock_pairing {
#define KVM_ASYNC_PF_ENABLED (1 << 0)
#define KVM_ASYNC_PF_SEND_ALWAYS (1 << 1)
+#define KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT (1 << 2)
/* Operations for KVM_HC_MMU_OP */
#define KVM_MMU_OP_WRITE_PTE 1
diff --git a/arch/x86/include/uapi/asm/mman.h b/arch/x86/include/uapi/asm/mman.h
index 39bca7fac087..3be08f07695c 100644
--- a/arch/x86/include/uapi/asm/mman.h
+++ b/arch/x86/include/uapi/asm/mman.h
@@ -3,9 +3,6 @@
#define MAP_32BIT 0x40 /* only give out 32bit addresses */
-#define MAP_HUGE_2MB (21 << MAP_HUGE_SHIFT)
-#define MAP_HUGE_1GB (30 << MAP_HUGE_SHIFT)
-
#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
/*
* Take the 4 protection key bits out of the vma->vm_flags
diff --git a/arch/x86/include/uapi/asm/processor-flags.h b/arch/x86/include/uapi/asm/processor-flags.h
index 567de50a4c2a..185f3d10c194 100644
--- a/arch/x86/include/uapi/asm/processor-flags.h
+++ b/arch/x86/include/uapi/asm/processor-flags.h
@@ -104,6 +104,8 @@
#define X86_CR4_OSFXSR _BITUL(X86_CR4_OSFXSR_BIT)
#define X86_CR4_OSXMMEXCPT_BIT 10 /* enable unmasked SSE exceptions */
#define X86_CR4_OSXMMEXCPT _BITUL(X86_CR4_OSXMMEXCPT_BIT)
+#define X86_CR4_LA57_BIT 12 /* enable 5-level page tables */
+#define X86_CR4_LA57 _BITUL(X86_CR4_LA57_BIT)
#define X86_CR4_VMXE_BIT 13 /* enable VMX virtualization */
#define X86_CR4_VMXE _BITUL(X86_CR4_VMXE_BIT)
#define X86_CR4_SMXE_BIT 14 /* enable safer mode (TXT) */
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 4b994232cb57..fd0a7895b63f 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -18,6 +18,7 @@ CFLAGS_REMOVE_pvclock.o = -pg
CFLAGS_REMOVE_kvmclock.o = -pg
CFLAGS_REMOVE_ftrace.o = -pg
CFLAGS_REMOVE_early_printk.o = -pg
+CFLAGS_REMOVE_head64.o = -pg
endif
KASAN_SANITIZE_head$(BITS).o := n
@@ -29,6 +30,7 @@ OBJECT_FILES_NON_STANDARD_head_$(BITS).o := y
OBJECT_FILES_NON_STANDARD_relocate_kernel_$(BITS).o := y
OBJECT_FILES_NON_STANDARD_ftrace_$(BITS).o := y
OBJECT_FILES_NON_STANDARD_test_nx.o := y
+OBJECT_FILES_NON_STANDARD_paravirt_patch_$(BITS).o := y
# If instrumentation of this dir is enabled, boot hangs during first second.
# Probably could be more selective here, but note that files related to irqs,
@@ -40,7 +42,7 @@ CFLAGS_irq.o := -I$(src)/../include/asm/trace
obj-y := process_$(BITS).o signal.o
obj-$(CONFIG_COMPAT) += signal_compat.o
-obj-y += traps.o irq.o irq_$(BITS).o dumpstack_$(BITS).o
+obj-y += traps.o idt.o irq.o irq_$(BITS).o dumpstack_$(BITS).o
obj-y += time.o ioport.o dumpstack.o nmi.o
obj-$(CONFIG_MODIFY_LDT_SYSCALL) += ldt.o
obj-y += setup.o x86_init.o i8259.o irqinit.o jump_label.o
@@ -109,6 +111,7 @@ obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= paravirt-spinlocks.o
obj-$(CONFIG_PARAVIRT_CLOCK) += pvclock.o
obj-$(CONFIG_X86_PMEM_LEGACY_DEVICE) += pmem.o
+obj-$(CONFIG_EISA) += eisa.o
obj-$(CONFIG_PCSPKR_PLATFORM) += pcspeaker.o
obj-$(CONFIG_X86_CHECK_BIOS_CORRUPTION) += check.o
@@ -124,11 +127,9 @@ obj-$(CONFIG_PERF_EVENTS) += perf_regs.o
obj-$(CONFIG_TRACING) += tracepoint.o
obj-$(CONFIG_SCHED_MC_PRIO) += itmt.o
-ifdef CONFIG_FRAME_POINTER
-obj-y += unwind_frame.o
-else
-obj-y += unwind_guess.o
-endif
+obj-$(CONFIG_ORC_UNWINDER) += unwind_orc.o
+obj-$(CONFIG_FRAME_POINTER_UNWINDER) += unwind_frame.o
+obj-$(CONFIG_GUESS_UNWINDER) += unwind_guess.o
###
# 64 bit specific files
diff --git a/arch/x86/kernel/acpi/Makefile b/arch/x86/kernel/acpi/Makefile
index 26b78d86f25a..85a9e17e0dbc 100644
--- a/arch/x86/kernel/acpi/Makefile
+++ b/arch/x86/kernel/acpi/Makefile
@@ -1,3 +1,5 @@
+OBJECT_FILES_NON_STANDARD_wakeup_$(BITS).o := y
+
obj-$(CONFIG_ACPI) += boot.o
obj-$(CONFIG_ACPI_SLEEP) += sleep.o wakeup_$(BITS).o
obj-$(CONFIG_ACPI_APEI) += apei.o
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 6bb680671088..079535e53e2a 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -115,24 +115,24 @@ static u32 isa_irq_to_gsi[NR_IRQS_LEGACY] __read_mostly = {
#define ACPI_INVALID_GSI INT_MIN
/*
- * This is just a simple wrapper around early_ioremap(),
+ * This is just a simple wrapper around early_memremap(),
* with sanity checks for phys == 0 and size == 0.
*/
-char *__init __acpi_map_table(unsigned long phys, unsigned long size)
+void __init __iomem *__acpi_map_table(unsigned long phys, unsigned long size)
{
if (!phys || !size)
return NULL;
- return early_ioremap(phys, size);
+ return early_memremap(phys, size);
}
-void __init __acpi_unmap_table(char *map, unsigned long size)
+void __init __acpi_unmap_table(void __iomem *map, unsigned long size)
{
if (!map || !size)
return;
- early_iounmap(map, size);
+ early_memunmap(map, size);
}
#ifdef CONFIG_X86_LOCAL_APIC
@@ -199,8 +199,10 @@ static int __init
acpi_parse_x2apic(struct acpi_subtable_header *header, const unsigned long end)
{
struct acpi_madt_local_x2apic *processor = NULL;
+#ifdef CONFIG_X86_X2APIC
int apic_id;
u8 enabled;
+#endif
processor = (struct acpi_madt_local_x2apic *)header;
@@ -209,9 +211,10 @@ acpi_parse_x2apic(struct acpi_subtable_header *header, const unsigned long end)
acpi_table_print_madt_entry(header);
+#ifdef CONFIG_X86_X2APIC
apic_id = processor->local_apic_id;
enabled = processor->lapic_flags & ACPI_MADT_ENABLED;
-#ifdef CONFIG_X86_X2APIC
+
/*
* We need to register disabled CPU as well to permit
* counting disabled CPUs. This allows us to size
@@ -347,6 +350,14 @@ static void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger,
struct mpc_intsrc mp_irq;
/*
+ * Check bus_irq boundary.
+ */
+ if (bus_irq >= NR_IRQS_LEGACY) {
+ pr_warn("Invalid bus_irq %u for legacy override\n", bus_irq);
+ return;
+ }
+
+ /*
* Convert 'gsi' to 'ioapic.pin'.
*/
ioapic = mp_find_ioapic(gsi);
@@ -1075,7 +1086,7 @@ static void __init mp_config_acpi_legacy_irqs(void)
mp_bus_id_to_type[MP_ISA_BUS] = MP_BUS_ISA;
#endif
set_bit(MP_ISA_BUS, mp_bus_not_pci);
- pr_debug("Bus #%d is ISA\n", MP_ISA_BUS);
+ pr_debug("Bus #%d is ISA (nIRQs: %d)\n", MP_ISA_BUS, nr_legacy_irqs());
/*
* Use the default configuration for the IRQs 0-15. Unless
@@ -1362,7 +1373,7 @@ static void __init acpi_reduced_hw_init(void)
* If your system is blacklisted here, but you find that acpi=force
* works for you, please contact linux-acpi@vger.kernel.org
*/
-static struct dmi_system_id __initdata acpi_dmi_table[] = {
+static const struct dmi_system_id acpi_dmi_table[] __initconst = {
/*
* Boxes that need ACPI disabled
*/
@@ -1437,7 +1448,7 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
};
/* second table for DMI checks that should run after early-quirks */
-static struct dmi_system_id __initdata acpi_dmi_table_late[] = {
+static const struct dmi_system_id acpi_dmi_table_late[] __initconst = {
/*
* HP laptops which use a DSDT reporting as HP/SB400/10000,
* which includes some code which overrides all temperature
diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c
index 8233a630280f..dde437f5d14f 100644
--- a/arch/x86/kernel/acpi/cstate.c
+++ b/arch/x86/kernel/acpi/cstate.c
@@ -167,7 +167,8 @@ static int __init ffh_cstate_init(void)
{
struct cpuinfo_x86 *c = &boot_cpu_data;
- if (c->x86_vendor != X86_VENDOR_INTEL)
+ if (c->x86_vendor != X86_VENDOR_INTEL &&
+ c->x86_vendor != X86_VENDOR_AMD)
return -1;
cpu_cstate_entry = alloc_percpu(struct cstate_entry);
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 32e14d137416..3344d3382e91 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -742,7 +742,16 @@ static void *bp_int3_handler, *bp_int3_addr;
int poke_int3_handler(struct pt_regs *regs)
{
- /* bp_patching_in_progress */
+ /*
+ * Having observed our INT3 instruction, we now must observe
+ * bp_patching_in_progress.
+ *
+ * in_progress = TRUE INT3
+ * WMB RMB
+ * write INT3 if (in_progress)
+ *
+ * Idem for bp_int3_handler.
+ */
smp_rmb();
if (likely(!bp_patching_in_progress))
@@ -788,9 +797,8 @@ void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler)
bp_int3_addr = (u8 *)addr + sizeof(int3);
bp_patching_in_progress = true;
/*
- * Corresponding read barrier in int3 notifier for
- * making sure the in_progress flags is correctly ordered wrt.
- * patching
+ * Corresponding read barrier in int3 notifier for making sure the
+ * in_progress and handler are correctly ordered wrt. patching.
*/
smp_wmb();
@@ -815,9 +823,11 @@ void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler)
text_poke(addr, opcode, sizeof(int3));
on_each_cpu(do_sync_core, NULL, 1);
-
+ /*
+ * sync_core() implies an smp_mb() and orders this store against
+ * the writing of the new instruction.
+ */
bp_patching_in_progress = false;
- smp_wmb();
return addr;
}
diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c
index 815dd63f49d0..cc0e8bc0ea3f 100644
--- a/arch/x86/kernel/amd_gart_64.c
+++ b/arch/x86/kernel/amd_gart_64.c
@@ -704,6 +704,7 @@ static const struct dma_map_ops gart_dma_ops = {
.alloc = gart_alloc_coherent,
.free = gart_free_coherent,
.mapping_error = gart_mapping_error,
+ .dma_supported = x86_dma_supported,
};
static void gart_iommu_shutdown(void)
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 2d75faf743f2..ff891772c9f8 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -54,6 +54,8 @@
#include <asm/mce.h>
#include <asm/tsc.h>
#include <asm/hypervisor.h>
+#include <asm/cpu_device_id.h>
+#include <asm/intel-family.h>
unsigned int num_processors;
@@ -175,8 +177,6 @@ static int disable_apic_timer __initdata;
int local_apic_timer_c2_ok;
EXPORT_SYMBOL_GPL(local_apic_timer_c2_ok);
-int first_system_vector = FIRST_SYSTEM_VECTOR;
-
/*
* Debug level, exported for io_apic.c
*/
@@ -545,6 +545,96 @@ static struct clock_event_device lapic_clockevent = {
};
static DEFINE_PER_CPU(struct clock_event_device, lapic_events);
+#define DEADLINE_MODEL_MATCH_FUNC(model, func) \
+ { X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, (unsigned long)&func }
+
+#define DEADLINE_MODEL_MATCH_REV(model, rev) \
+ { X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, (unsigned long)rev }
+
+static u32 hsx_deadline_rev(void)
+{
+ switch (boot_cpu_data.x86_mask) {
+ case 0x02: return 0x3a; /* EP */
+ case 0x04: return 0x0f; /* EX */
+ }
+
+ return ~0U;
+}
+
+static u32 bdx_deadline_rev(void)
+{
+ switch (boot_cpu_data.x86_mask) {
+ case 0x02: return 0x00000011;
+ case 0x03: return 0x0700000e;
+ case 0x04: return 0x0f00000c;
+ case 0x05: return 0x0e000003;
+ }
+
+ return ~0U;
+}
+
+static u32 skx_deadline_rev(void)
+{
+ switch (boot_cpu_data.x86_mask) {
+ case 0x03: return 0x01000136;
+ case 0x04: return 0x02000014;
+ }
+
+ return ~0U;
+}
+
+static const struct x86_cpu_id deadline_match[] = {
+ DEADLINE_MODEL_MATCH_FUNC( INTEL_FAM6_HASWELL_X, hsx_deadline_rev),
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_BROADWELL_X, 0x0b000020),
+ DEADLINE_MODEL_MATCH_FUNC( INTEL_FAM6_BROADWELL_XEON_D, bdx_deadline_rev),
+ DEADLINE_MODEL_MATCH_FUNC( INTEL_FAM6_SKYLAKE_X, skx_deadline_rev),
+
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_HASWELL_CORE, 0x22),
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_HASWELL_ULT, 0x20),
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_HASWELL_GT3E, 0x17),
+
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_BROADWELL_CORE, 0x25),
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_BROADWELL_GT3E, 0x17),
+
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_SKYLAKE_MOBILE, 0xb2),
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_SKYLAKE_DESKTOP, 0xb2),
+
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_KABYLAKE_MOBILE, 0x52),
+ DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_KABYLAKE_DESKTOP, 0x52),
+
+ {},
+};
+
+static void apic_check_deadline_errata(void)
+{
+ const struct x86_cpu_id *m;
+ u32 rev;
+
+ if (!boot_cpu_has(X86_FEATURE_TSC_DEADLINE_TIMER) ||
+ boot_cpu_has(X86_FEATURE_HYPERVISOR))
+ return;
+
+ m = x86_match_cpu(deadline_match);
+ if (!m)
+ return;
+
+ /*
+ * Function pointers will have the MSB set due to address layout,
+ * immediate revisions will not.
+ */
+ if ((long)m->driver_data < 0)
+ rev = ((u32 (*)(void))(m->driver_data))();
+ else
+ rev = (u32)m->driver_data;
+
+ if (boot_cpu_data.microcode >= rev)
+ return;
+
+ setup_clear_cpu_cap(X86_FEATURE_TSC_DEADLINE_TIMER);
+ pr_err(FW_BUG "TSC_DEADLINE disabled due to Errata; "
+ "please update microcode to version: 0x%x (or later)\n", rev);
+}
+
/*
* Setup the local APIC timer for this CPU. Copy the initialized values
* of the boot CPU and register the clock event in the framework.
@@ -563,6 +653,7 @@ static void setup_APIC_timer(void)
levt->cpumask = cpumask_of(smp_processor_id());
if (this_cpu_has(X86_FEATURE_TSC_DEADLINE_TIMER)) {
+ levt->name = "lapic-deadline";
levt->features &= ~(CLOCK_EVT_FEAT_PERIODIC |
CLOCK_EVT_FEAT_DUMMY);
levt->set_next_event = lapic_next_deadline;
@@ -912,8 +1003,7 @@ void setup_secondary_APIC_clock(void)
*/
static void local_apic_timer_interrupt(void)
{
- int cpu = smp_processor_id();
- struct clock_event_device *evt = &per_cpu(lapic_events, cpu);
+ struct clock_event_device *evt = this_cpu_ptr(&lapic_events);
/*
* Normally we should not be here till LAPIC has been initialized but
@@ -927,7 +1017,8 @@ static void local_apic_timer_interrupt(void)
* spurious.
*/
if (!evt->event_handler) {
- pr_warning("Spurious LAPIC timer interrupt on cpu %d\n", cpu);
+ pr_warning("Spurious LAPIC timer interrupt on cpu %d\n",
+ smp_processor_id());
/* Switch it off */
lapic_timer_shutdown(evt);
return;
@@ -962,25 +1053,6 @@ __visible void __irq_entry smp_apic_timer_interrupt(struct pt_regs *regs)
* interrupt lock, which is the WrongThing (tm) to do.
*/
entering_ack_irq();
- local_apic_timer_interrupt();
- exiting_irq();
-
- set_irq_regs(old_regs);
-}
-
-__visible void __irq_entry smp_trace_apic_timer_interrupt(struct pt_regs *regs)
-{
- struct pt_regs *old_regs = set_irq_regs(regs);
-
- /*
- * NOTE! We'd better ACK the irq immediately,
- * because timer handling can be slow.
- *
- * update_process_times() expects us to have done irq_enter().
- * Besides, if we don't timer interrupts ignore the global
- * interrupt lock, which is the WrongThing (tm) to do.
- */
- entering_ack_irq();
trace_local_timer_entry(LOCAL_TIMER_VECTOR);
local_apic_timer_interrupt();
trace_local_timer_exit(LOCAL_TIMER_VECTOR);
@@ -1779,6 +1851,8 @@ void __init init_apic_mappings(void)
{
unsigned int new_apicid;
+ apic_check_deadline_errata();
+
if (x2apic_mode) {
boot_cpu_physical_apicid = read_apic_id();
return;
@@ -1840,10 +1914,14 @@ void __init register_lapic_address(unsigned long address)
/*
* This interrupt should _never_ happen with our APIC/SMP architecture
*/
-static void __smp_spurious_interrupt(u8 vector)
+__visible void __irq_entry smp_spurious_interrupt(struct pt_regs *regs)
{
+ u8 vector = ~regs->orig_ax;
u32 v;
+ entering_irq();
+ trace_spurious_apic_entry(vector);
+
/*
* Check if this really is a spurious interrupt and ACK it
* if it is a vectored one. Just in case...
@@ -1858,22 +1936,7 @@ static void __smp_spurious_interrupt(u8 vector)
/* see sw-dev-man vol 3, chapter 7.4.13.5 */
pr_info("spurious APIC interrupt through vector %02x on CPU#%d, "
"should never happen.\n", vector, smp_processor_id());
-}
-__visible void __irq_entry smp_spurious_interrupt(struct pt_regs *regs)
-{
- entering_irq();
- __smp_spurious_interrupt(~regs->orig_ax);
- exiting_irq();
-}
-
-__visible void __irq_entry smp_trace_spurious_interrupt(struct pt_regs *regs)
-{
- u8 vector = ~regs->orig_ax;
-
- entering_irq();
- trace_spurious_apic_entry(vector);
- __smp_spurious_interrupt(vector);
trace_spurious_apic_exit(vector);
exiting_irq();
}
@@ -1881,10 +1944,8 @@ __visible void __irq_entry smp_trace_spurious_interrupt(struct pt_regs *regs)
/*
* This interrupt should never happen with our APIC/SMP architecture
*/
-static void __smp_error_interrupt(struct pt_regs *regs)
+__visible void __irq_entry smp_error_interrupt(struct pt_regs *regs)
{
- u32 v;
- u32 i = 0;
static const char * const error_interrupt_reason[] = {
"Send CS error", /* APIC Error Bit 0 */
"Receive CS error", /* APIC Error Bit 1 */
@@ -1895,6 +1956,10 @@ static void __smp_error_interrupt(struct pt_regs *regs)
"Received illegal vector", /* APIC Error Bit 6 */
"Illegal register address", /* APIC Error Bit 7 */
};
+ u32 v, i = 0;
+
+ entering_irq();
+ trace_error_apic_entry(ERROR_APIC_VECTOR);
/* First tickle the hardware, only then report what went on. -- REW */
if (lapic_get_maxlvt() > 3) /* Due to the Pentium erratum 3AP. */
@@ -1916,20 +1981,6 @@ static void __smp_error_interrupt(struct pt_regs *regs)
apic_printk(APIC_DEBUG, KERN_CONT "\n");
-}
-
-__visible void __irq_entry smp_error_interrupt(struct pt_regs *regs)
-{
- entering_irq();
- __smp_error_interrupt(regs);
- exiting_irq();
-}
-
-__visible void __irq_entry smp_trace_error_interrupt(struct pt_regs *regs)
-{
- entering_irq();
- trace_error_apic_entry(ERROR_APIC_VECTOR);
- __smp_error_interrupt(regs);
trace_error_apic_exit(ERROR_APIC_VECTOR);
exiting_irq();
}
@@ -2057,7 +2108,7 @@ static int allocate_logical_cpuid(int apicid)
/* Allocate a new cpuid. */
if (nr_logical_cpuids >= nr_cpu_ids) {
- WARN_ONCE(1, "APIC: NR_CPUS/possible_cpus limit of %i reached. "
+ WARN_ONCE(1, "APIC: NR_CPUS/possible_cpus limit of %u reached. "
"Processor %d/0x%x and the rest are ignored.\n",
nr_cpu_ids, nr_logical_cpuids, apicid);
return -EINVAL;
@@ -2090,7 +2141,7 @@ int generic_processor_info(int apicid, int version)
* Since fixing handling of boot_cpu_physical_apicid requires
* another discussion and tests on each platform, we leave it
* for now and here we use read_apic_id() directly in this
- * function, __generic_processor_info().
+ * function, generic_processor_info().
*/
if (disabled_cpu_apicid != BAD_APICID &&
disabled_cpu_apicid != read_apic_id() &&
@@ -2201,23 +2252,32 @@ void default_init_apic_ldr(void)
apic_write(APIC_LDR, val);
}
-int default_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
- const struct cpumask *andmask,
- unsigned int *apicid)
+int default_cpu_mask_to_apicid(const struct cpumask *mask,
+ struct irq_data *irqdata,
+ unsigned int *apicid)
{
- unsigned int cpu;
+ unsigned int cpu = cpumask_first(mask);
- for_each_cpu_and(cpu, cpumask, andmask) {
- if (cpumask_test_cpu(cpu, cpu_online_mask))
- break;
- }
+ if (cpu >= nr_cpu_ids)
+ return -EINVAL;
+ *apicid = per_cpu(x86_cpu_to_apicid, cpu);
+ irq_data_update_effective_affinity(irqdata, cpumask_of(cpu));
+ return 0;
+}
- if (likely(cpu < nr_cpu_ids)) {
- *apicid = per_cpu(x86_cpu_to_apicid, cpu);
- return 0;
- }
+int flat_cpu_mask_to_apicid(const struct cpumask *mask,
+ struct irq_data *irqdata,
+ unsigned int *apicid)
- return -EINVAL;
+{
+ struct cpumask *effmsk = irq_data_get_effective_affinity_mask(irqdata);
+ unsigned long cpu_mask = cpumask_bits(mask)[0] & APIC_ALL_CPUS;
+
+ if (!cpu_mask)
+ return -EINVAL;
+ *apicid = (unsigned int)cpu_mask;
+ cpumask_bits(effmsk)[0] = cpu_mask;
+ return 0;
}
/*
diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c
index a4d7ff20ed22..dedd5a41ba48 100644
--- a/arch/x86/kernel/apic/apic_flat_64.c
+++ b/arch/x86/kernel/apic/apic_flat_64.c
@@ -172,7 +172,7 @@ static struct apic apic_flat __ro_after_init = {
.get_apic_id = flat_get_apic_id,
.set_apic_id = set_apic_id,
- .cpu_mask_to_apicid_and = flat_cpu_mask_to_apicid_and,
+ .cpu_mask_to_apicid = flat_cpu_mask_to_apicid,
.send_IPI = default_send_IPI_single,
.send_IPI_mask = flat_send_IPI_mask,
@@ -268,7 +268,7 @@ static struct apic apic_physflat __ro_after_init = {
.get_apic_id = flat_get_apic_id,
.set_apic_id = set_apic_id,
- .cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and,
+ .cpu_mask_to_apicid = default_cpu_mask_to_apicid,
.send_IPI = default_send_IPI_single_phys,
.send_IPI_mask = default_send_IPI_mask_sequence_phys,
diff --git a/arch/x86/kernel/apic/apic_noop.c b/arch/x86/kernel/apic/apic_noop.c
index 2262eb6df796..6599f437b4ab 100644
--- a/arch/x86/kernel/apic/apic_noop.c
+++ b/arch/x86/kernel/apic/apic_noop.c
@@ -141,7 +141,7 @@ struct apic apic_noop __ro_after_init = {
.get_apic_id = noop_get_apic_id,
.set_apic_id = NULL,
- .cpu_mask_to_apicid_and = flat_cpu_mask_to_apicid_and,
+ .cpu_mask_to_apicid = flat_cpu_mask_to_apicid,
.send_IPI = noop_send_IPI,
.send_IPI_mask = noop_send_IPI_mask,
diff --git a/arch/x86/kernel/apic/apic_numachip.c b/arch/x86/kernel/apic/apic_numachip.c
index e08fe2c8dd8c..2fda912219a6 100644
--- a/arch/x86/kernel/apic/apic_numachip.c
+++ b/arch/x86/kernel/apic/apic_numachip.c
@@ -267,7 +267,7 @@ static const struct apic apic_numachip1 __refconst = {
.get_apic_id = numachip1_get_apic_id,
.set_apic_id = numachip1_set_apic_id,
- .cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and,
+ .cpu_mask_to_apicid = default_cpu_mask_to_apicid,
.send_IPI = numachip_send_IPI_one,
.send_IPI_mask = numachip_send_IPI_mask,
@@ -318,7 +318,7 @@ static const struct apic apic_numachip2 __refconst = {
.get_apic_id = numachip2_get_apic_id,
.set_apic_id = numachip2_set_apic_id,
- .cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and,
+ .cpu_mask_to_apicid = default_cpu_mask_to_apicid,
.send_IPI = numachip_send_IPI_one,
.send_IPI_mask = numachip_send_IPI_mask,
diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
index 56012010332c..456e45e8bf84 100644
--- a/arch/x86/kernel/apic/bigsmp_32.c
+++ b/arch/x86/kernel/apic/bigsmp_32.c
@@ -172,7 +172,7 @@ static struct apic apic_bigsmp __ro_after_init = {
.get_apic_id = bigsmp_get_apic_id,
.set_apic_id = NULL,
- .cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and,
+ .cpu_mask_to_apicid = default_cpu_mask_to_apicid,
.send_IPI = default_send_IPI_single_phys,
.send_IPI_mask = default_send_IPI_mask_sequence_phys,
diff --git a/arch/x86/kernel/apic/htirq.c b/arch/x86/kernel/apic/htirq.c
index ae50d3454d78..56ccf9346b08 100644
--- a/arch/x86/kernel/apic/htirq.c
+++ b/arch/x86/kernel/apic/htirq.c
@@ -150,16 +150,27 @@ static const struct irq_domain_ops htirq_domain_ops = {
.deactivate = htirq_domain_deactivate,
};
-void arch_init_htirq_domain(struct irq_domain *parent)
+void __init arch_init_htirq_domain(struct irq_domain *parent)
{
+ struct fwnode_handle *fn;
+
if (disable_apic)
return;
- htirq_domain = irq_domain_add_tree(NULL, &htirq_domain_ops, NULL);
+ fn = irq_domain_alloc_named_fwnode("PCI-HT");
+ if (!fn)
+ goto warn;
+
+ htirq_domain = irq_domain_create_tree(fn, &htirq_domain_ops, NULL);
+ irq_domain_free_fwnode(fn);
if (!htirq_domain)
- pr_warn("failed to initialize irqdomain for HTIRQ.\n");
- else
- htirq_domain->parent = parent;
+ goto warn;
+
+ htirq_domain->parent = parent;
+ return;
+
+warn:
+ pr_warn("Failed to initialize irqdomain for HTIRQ.\n");
}
int arch_setup_ht_irq(int idx, int pos, struct pci_dev *dev,
diff --git a/arch/x86/kernel/apic/hw_nmi.c b/arch/x86/kernel/apic/hw_nmi.c
index c73c9fb281e1..d6f387780849 100644
--- a/arch/x86/kernel/apic/hw_nmi.c
+++ b/arch/x86/kernel/apic/hw_nmi.c
@@ -19,7 +19,7 @@
#include <linux/init.h>
#include <linux/delay.h>
-#ifdef CONFIG_HARDLOCKUP_DETECTOR
+#ifdef CONFIG_HARDLOCKUP_DETECTOR_PERF
u64 hw_nmi_get_sample_period(int watchdog_thresh)
{
return (u64)(cpu_khz) * 1000 * watchdog_thresh;
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 347bb9f65737..70e48aa6af98 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1200,28 +1200,6 @@ EXPORT_SYMBOL(IO_APIC_get_PCI_irq_vector);
static struct irq_chip ioapic_chip, ioapic_ir_chip;
-#ifdef CONFIG_X86_32
-static inline int IO_APIC_irq_trigger(int irq)
-{
- int apic, idx, pin;
-
- for_each_ioapic_pin(apic, pin) {
- idx = find_irq_entry(apic, pin, mp_INT);
- if ((idx != -1) && (irq == pin_2_irq(idx, apic, pin, 0)))
- return irq_trigger(idx);
- }
- /*
- * nonexistent IRQs are edge default
- */
- return 0;
-}
-#else
-static inline int IO_APIC_irq_trigger(int irq)
-{
- return 1;
-}
-#endif
-
static void __init setup_IO_APIC_irqs(void)
{
unsigned int ioapic, pin;
@@ -1265,7 +1243,7 @@ static void io_apic_print_entries(unsigned int apic, unsigned int nr_entries)
entry.vector, entry.irr, entry.delivery_status);
if (ir_entry->format)
printk(KERN_DEBUG "%s, remapped, I(%04X), Z(%X)\n",
- buf, (ir_entry->index << 15) | ir_entry->index,
+ buf, (ir_entry->index2 << 15) | ir_entry->index,
ir_entry->zero);
else
printk(KERN_DEBUG "%s, %s, D(%02X), M(%1d)\n",
@@ -2115,7 +2093,7 @@ static inline void __init check_timer(void)
int idx;
idx = find_irq_entry(apic1, pin1, mp_INT);
if (idx != -1 && irq_trigger(idx))
- unmask_ioapic_irq(irq_get_chip_data(0));
+ unmask_ioapic_irq(irq_get_irq_data(0));
}
irq_domain_deactivate_irq(irq_data);
irq_domain_activate_irq(irq_data);
@@ -2223,6 +2201,8 @@ static int mp_irqdomain_create(int ioapic)
struct ioapic *ip = &ioapics[ioapic];
struct ioapic_domain_cfg *cfg = &ip->irqdomain_cfg;
struct mp_ioapic_gsi *gsi_cfg = mp_ioapic_gsi_routing(ioapic);
+ struct fwnode_handle *fn;
+ char *name = "IO-APIC";
if (cfg->type == IOAPIC_DOMAIN_INVALID)
return 0;
@@ -2233,9 +2213,25 @@ static int mp_irqdomain_create(int ioapic)
parent = irq_remapping_get_ir_irq_domain(&info);
if (!parent)
parent = x86_vector_domain;
+ else
+ name = "IO-APIC-IR";
+
+ /* Handle device tree enumerated APICs proper */
+ if (cfg->dev) {
+ fn = of_node_to_fwnode(cfg->dev);
+ } else {
+ fn = irq_domain_alloc_named_id_fwnode(name, ioapic);
+ if (!fn)
+ return -ENOMEM;
+ }
+
+ ip->irqdomain = irq_domain_create_linear(fn, hwirqs, cfg->ops,
+ (void *)(long)ioapic);
+
+ /* Release fw handle if it was allocated above */
+ if (!cfg->dev)
+ irq_domain_free_fwnode(fn);
- ip->irqdomain = irq_domain_add_linear(cfg->dev, hwirqs, cfg->ops,
- (void *)(long)ioapic);
if (!ip->irqdomain)
return -ENOMEM;
diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
index c61aec7e65f4..9b18be764422 100644
--- a/arch/x86/kernel/apic/msi.c
+++ b/arch/x86/kernel/apic/msi.c
@@ -136,13 +136,20 @@ static struct msi_domain_info pci_msi_domain_info = {
.handler_name = "edge",
};
-void arch_init_msi_domain(struct irq_domain *parent)
+void __init arch_init_msi_domain(struct irq_domain *parent)
{
+ struct fwnode_handle *fn;
+
if (disable_apic)
return;
- msi_default_domain = pci_msi_create_irq_domain(NULL,
- &pci_msi_domain_info, parent);
+ fn = irq_domain_alloc_named_fwnode("PCI-MSI");
+ if (fn) {
+ msi_default_domain =
+ pci_msi_create_irq_domain(fn, &pci_msi_domain_info,
+ parent);
+ irq_domain_free_fwnode(fn);
+ }
if (!msi_default_domain)
pr_warn("failed to initialize irqdomain for MSI/MSI-x.\n");
}
@@ -167,9 +174,18 @@ static struct msi_domain_info pci_msi_ir_domain_info = {
.handler_name = "edge",
};
-struct irq_domain *arch_create_msi_irq_domain(struct irq_domain *parent)
+struct irq_domain *arch_create_remap_msi_irq_domain(struct irq_domain *parent,
+ const char *name, int id)
{
- return pci_msi_create_irq_domain(NULL, &pci_msi_ir_domain_info, parent);
+ struct fwnode_handle *fn;
+ struct irq_domain *d;
+
+ fn = irq_domain_alloc_named_id_fwnode(name, id);
+ if (!fn)
+ return NULL;
+ d = pci_msi_create_irq_domain(fn, &pci_msi_ir_domain_info, parent);
+ irq_domain_free_fwnode(fn);
+ return d;
}
#endif
@@ -221,13 +237,20 @@ static struct irq_domain *dmar_get_irq_domain(void)
{
static struct irq_domain *dmar_domain;
static DEFINE_MUTEX(dmar_lock);
+ struct fwnode_handle *fn;
mutex_lock(&dmar_lock);
- if (dmar_domain == NULL)
- dmar_domain = msi_create_irq_domain(NULL, &dmar_msi_domain_info,
+ if (dmar_domain)
+ goto out;
+
+ fn = irq_domain_alloc_named_fwnode("DMAR-MSI");
+ if (fn) {
+ dmar_domain = msi_create_irq_domain(fn, &dmar_msi_domain_info,
x86_vector_domain);
+ irq_domain_free_fwnode(fn);
+ }
+out:
mutex_unlock(&dmar_lock);
-
return dmar_domain;
}
@@ -317,9 +340,10 @@ static struct msi_domain_info hpet_msi_domain_info = {
struct irq_domain *hpet_create_irq_domain(int hpet_id)
{
- struct irq_domain *parent;
- struct irq_alloc_info info;
struct msi_domain_info *domain_info;
+ struct irq_domain *parent, *d;
+ struct irq_alloc_info info;
+ struct fwnode_handle *fn;
if (x86_vector_domain == NULL)
return NULL;
@@ -340,7 +364,16 @@ struct irq_domain *hpet_create_irq_domain(int hpet_id)
else
hpet_msi_controller.name = "IR-HPET-MSI";
- return msi_create_irq_domain(NULL, domain_info, parent);
+ fn = irq_domain_alloc_named_id_fwnode(hpet_msi_controller.name,
+ hpet_id);
+ if (!fn) {
+ kfree(domain_info);
+ return NULL;
+ }
+
+ d = msi_create_irq_domain(fn, domain_info, parent);
+ irq_domain_free_fwnode(fn);
+ return d;
}
int hpet_assign_irq(struct irq_domain *domain, struct hpet_dev *dev,
diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c
index 2e8f7f048f4f..63287659adb6 100644
--- a/arch/x86/kernel/apic/probe_32.c
+++ b/arch/x86/kernel/apic/probe_32.c
@@ -102,7 +102,7 @@ static struct apic apic_default __ro_after_init = {
.get_apic_id = default_get_apic_id,
.set_apic_id = NULL,
- .cpu_mask_to_apicid_and = flat_cpu_mask_to_apicid_and,
+ .cpu_mask_to_apicid = flat_cpu_mask_to_apicid,
.send_IPI = default_send_IPI_single,
.send_IPI_mask = default_send_IPI_mask_logical,
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index f3557a1eb562..88c214e75a6b 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -103,7 +103,8 @@ static void free_apic_chip_data(struct apic_chip_data *data)
}
static int __assign_irq_vector(int irq, struct apic_chip_data *d,
- const struct cpumask *mask)
+ const struct cpumask *mask,
+ struct irq_data *irqdata)
{
/*
* NOTE! The local APIC isn't very good at handling
@@ -141,7 +142,7 @@ static int __assign_irq_vector(int irq, struct apic_chip_data *d,
/*
* Clear the offline cpus from @vector_cpumask for searching
* and verify whether the result overlaps with @mask. If true,
- * then the call to apic->cpu_mask_to_apicid_and() will
+ * then the call to apic->cpu_mask_to_apicid() will
* succeed as well. If not, no point in trying to find a
* vector in this mask.
*/
@@ -165,7 +166,7 @@ static int __assign_irq_vector(int irq, struct apic_chip_data *d,
offset = current_offset;
next:
vector += 16;
- if (vector >= first_system_vector) {
+ if (vector >= FIRST_SYSTEM_VECTOR) {
offset = (offset + 1) % 16;
vector = FIRST_EXTERNAL_VECTOR + offset;
}
@@ -221,34 +222,40 @@ success:
* Cache destination APIC IDs into cfg->dest_apicid. This cannot fail
* as we already established, that mask & d->domain & cpu_online_mask
* is not empty.
+ *
+ * vector_searchmask is a subset of d->domain and has the offline
+ * cpus masked out.
*/
- BUG_ON(apic->cpu_mask_to_apicid_and(mask, d->domain,
- &d->cfg.dest_apicid));
+ cpumask_and(vector_searchmask, vector_searchmask, mask);
+ BUG_ON(apic->cpu_mask_to_apicid(vector_searchmask, irqdata,
+ &d->cfg.dest_apicid));
return 0;
}
static int assign_irq_vector(int irq, struct apic_chip_data *data,
- const struct cpumask *mask)
+ const struct cpumask *mask,
+ struct irq_data *irqdata)
{
int err;
unsigned long flags;
raw_spin_lock_irqsave(&vector_lock, flags);
- err = __assign_irq_vector(irq, data, mask);
+ err = __assign_irq_vector(irq, data, mask, irqdata);
raw_spin_unlock_irqrestore(&vector_lock, flags);
return err;
}
static int assign_irq_vector_policy(int irq, int node,
struct apic_chip_data *data,
- struct irq_alloc_info *info)
+ struct irq_alloc_info *info,
+ struct irq_data *irqdata)
{
if (info && info->mask)
- return assign_irq_vector(irq, data, info->mask);
+ return assign_irq_vector(irq, data, info->mask, irqdata);
if (node != NUMA_NO_NODE &&
- assign_irq_vector(irq, data, cpumask_of_node(node)) == 0)
+ assign_irq_vector(irq, data, cpumask_of_node(node), irqdata) == 0)
return 0;
- return assign_irq_vector(irq, data, apic->target_cpus());
+ return assign_irq_vector(irq, data, apic->target_cpus(), irqdata);
}
static void clear_irq_vector(int irq, struct apic_chip_data *data)
@@ -360,9 +367,17 @@ static int x86_vector_alloc_irqs(struct irq_domain *domain, unsigned int virq,
irq_data->chip = &lapic_controller;
irq_data->chip_data = data;
irq_data->hwirq = virq + i;
- err = assign_irq_vector_policy(virq + i, node, data, info);
+ err = assign_irq_vector_policy(virq + i, node, data, info,
+ irq_data);
if (err)
goto error;
+ /*
+ * If the apic destination mode is physical, then the
+ * effective affinity is restricted to a single target
+ * CPU. Mark the interrupt accordingly.
+ */
+ if (!apic->irq_dest_mode)
+ irqd_set_single_target(irq_data);
}
return 0;
@@ -405,7 +420,7 @@ int __init arch_probe_nr_irqs(void)
}
#ifdef CONFIG_X86_IO_APIC
-static void init_legacy_irqs(void)
+static void __init init_legacy_irqs(void)
{
int i, node = cpu_to_node(0);
struct apic_chip_data *data;
@@ -424,16 +439,21 @@ static void init_legacy_irqs(void)
}
}
#else
-static void init_legacy_irqs(void) { }
+static inline void init_legacy_irqs(void) { }
#endif
int __init arch_early_irq_init(void)
{
+ struct fwnode_handle *fn;
+
init_legacy_irqs();
- x86_vector_domain = irq_domain_add_tree(NULL, &x86_vector_domain_ops,
- NULL);
+ fn = irq_domain_alloc_named_fwnode("VECTOR");
+ BUG_ON(!fn);
+ x86_vector_domain = irq_domain_create_tree(fn, &x86_vector_domain_ops,
+ NULL);
BUG_ON(x86_vector_domain == NULL);
+ irq_domain_free_fwnode(fn);
irq_set_default_host(x86_vector_domain);
arch_init_msi_domain(x86_vector_domain);
@@ -529,11 +549,12 @@ static int apic_set_affinity(struct irq_data *irq_data,
if (!cpumask_intersects(dest, cpu_online_mask))
return -EINVAL;
- err = assign_irq_vector(irq, data, dest);
+ err = assign_irq_vector(irq, data, dest, irq_data);
return err ? err : IRQ_SET_MASK_OK;
}
static struct irq_chip lapic_controller = {
+ .name = "APIC",
.irq_ack = apic_ack_edge,
.irq_set_affinity = apic_set_affinity,
.irq_retrigger = apic_retrigger_irq,
diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
index 5a35f208ed95..481237cb1544 100644
--- a/arch/x86/kernel/apic/x2apic_cluster.c
+++ b/arch/x86/kernel/apic/x2apic_cluster.c
@@ -4,6 +4,7 @@
#include <linux/kernel.h>
#include <linux/ctype.h>
#include <linux/dmar.h>
+#include <linux/irq.h>
#include <linux/cpu.h>
#include <asm/smp.h>
@@ -104,35 +105,30 @@ static void x2apic_send_IPI_all(int vector)
}
static int
-x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
- const struct cpumask *andmask,
- unsigned int *apicid)
+x2apic_cpu_mask_to_apicid(const struct cpumask *mask, struct irq_data *irqdata,
+ unsigned int *apicid)
{
+ struct cpumask *effmsk = irq_data_get_effective_affinity_mask(irqdata);
+ unsigned int cpu;
u32 dest = 0;
u16 cluster;
- int i;
-
- for_each_cpu_and(i, cpumask, andmask) {
- if (!cpumask_test_cpu(i, cpu_online_mask))
- continue;
- dest = per_cpu(x86_cpu_to_logical_apicid, i);
- cluster = x2apic_cluster(i);
- break;
- }
- if (!dest)
+ cpu = cpumask_first(mask);
+ if (cpu >= nr_cpu_ids)
return -EINVAL;
- for_each_cpu_and(i, cpumask, andmask) {
- if (!cpumask_test_cpu(i, cpu_online_mask))
- continue;
- if (cluster != x2apic_cluster(i))
+ dest = per_cpu(x86_cpu_to_logical_apicid, cpu);
+ cluster = x2apic_cluster(cpu);
+
+ cpumask_clear(effmsk);
+ for_each_cpu(cpu, mask) {
+ if (cluster != x2apic_cluster(cpu))
continue;
- dest |= per_cpu(x86_cpu_to_logical_apicid, i);
+ dest |= per_cpu(x86_cpu_to_logical_apicid, cpu);
+ cpumask_set_cpu(cpu, effmsk);
}
*apicid = dest;
-
return 0;
}
@@ -256,7 +252,7 @@ static struct apic apic_x2apic_cluster __ro_after_init = {
.get_apic_id = x2apic_get_apic_id,
.set_apic_id = x2apic_set_apic_id,
- .cpu_mask_to_apicid_and = x2apic_cpu_mask_to_apicid_and,
+ .cpu_mask_to_apicid = x2apic_cpu_mask_to_apicid,
.send_IPI = x2apic_send_IPI,
.send_IPI_mask = x2apic_send_IPI_mask,
diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
index ff111f05a314..3baf0c3dc875 100644
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -127,7 +127,7 @@ static struct apic apic_x2apic_phys __ro_after_init = {
.get_apic_id = x2apic_get_apic_id,
.set_apic_id = x2apic_set_apic_id,
- .cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and,
+ .cpu_mask_to_apicid = default_cpu_mask_to_apicid,
.send_IPI = x2apic_send_IPI,
.send_IPI_mask = x2apic_send_IPI_mask,
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index b487b3a01615..0d57bb9079c9 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -526,27 +526,15 @@ static void uv_init_apic_ldr(void)
}
static int
-uv_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
- const struct cpumask *andmask,
- unsigned int *apicid)
+uv_cpu_mask_to_apicid(const struct cpumask *mask, struct irq_data *irqdata,
+ unsigned int *apicid)
{
- int unsigned cpu;
+ int ret = default_cpu_mask_to_apicid(mask, irqdata, apicid);
- /*
- * We're using fixed IRQ delivery, can only return one phys APIC ID.
- * May as well be the first.
- */
- for_each_cpu_and(cpu, cpumask, andmask) {
- if (cpumask_test_cpu(cpu, cpu_online_mask))
- break;
- }
-
- if (likely(cpu < nr_cpu_ids)) {
- *apicid = per_cpu(x86_cpu_to_apicid, cpu) | uv_apicid_hibits;
- return 0;
- }
+ if (!ret)
+ *apicid |= uv_apicid_hibits;
- return -EINVAL;
+ return ret;
}
static unsigned int x2apic_get_apic_id(unsigned long x)
@@ -614,7 +602,7 @@ static struct apic apic_x2apic_uv_x __ro_after_init = {
.get_apic_id = x2apic_get_apic_id,
.set_apic_id = set_apic_id,
- .cpu_mask_to_apicid_and = uv_cpu_mask_to_apicid_and,
+ .cpu_mask_to_apicid = uv_cpu_mask_to_apicid,
.send_IPI = uv_send_IPI_one,
.send_IPI_mask = uv_send_IPI_mask,
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index 446b0d3d4932..e4b0d92b3ae0 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -2043,7 +2043,7 @@ static int __init swab_apm_power_in_minutes(const struct dmi_system_id *d)
return 0;
}
-static struct dmi_system_id __initdata apm_dmi_table[] = {
+static const struct dmi_system_id apm_dmi_table[] __initconst = {
{
print_if_true,
KERN_WARNING "IBM T23 - BIOS 1.03b+ and controller firmware 1.02+ may be needed for Linux APM.",
diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c
index 880aa093268d..710edab9e644 100644
--- a/arch/x86/kernel/asm-offsets_32.c
+++ b/arch/x86/kernel/asm-offsets_32.c
@@ -4,9 +4,6 @@
#include <asm/ucontext.h>
-#include <linux/lguest.h>
-#include "../../../drivers/lguest/lg.h"
-
#define __SYSCALL_I386(nr, sym, qual) [nr] = 1,
static char syscalls[] = {
#include <asm/syscalls_32.h>
@@ -62,23 +59,6 @@ void foo(void)
OFFSET(stack_canary_offset, stack_canary, canary);
#endif
-#if defined(CONFIG_LGUEST) || defined(CONFIG_LGUEST_GUEST) || defined(CONFIG_LGUEST_MODULE)
- BLANK();
- OFFSET(LGUEST_DATA_irq_enabled, lguest_data, irq_enabled);
- OFFSET(LGUEST_DATA_irq_pending, lguest_data, irq_pending);
-
- BLANK();
- OFFSET(LGUEST_PAGES_host_gdt_desc, lguest_pages, state.host_gdt_desc);
- OFFSET(LGUEST_PAGES_host_idt_desc, lguest_pages, state.host_idt_desc);
- OFFSET(LGUEST_PAGES_host_cr3, lguest_pages, state.host_cr3);
- OFFSET(LGUEST_PAGES_host_sp, lguest_pages, state.host_sp);
- OFFSET(LGUEST_PAGES_guest_gdt_desc, lguest_pages,state.guest_gdt_desc);
- OFFSET(LGUEST_PAGES_guest_idt_desc, lguest_pages,state.guest_idt_desc);
- OFFSET(LGUEST_PAGES_guest_gdt, lguest_pages, state.guest_gdt);
- OFFSET(LGUEST_PAGES_regs_trapnum, lguest_pages, regs.trapnum);
- OFFSET(LGUEST_PAGES_regs_errcode, lguest_pages, regs.errcode);
- OFFSET(LGUEST_PAGES_regs, lguest_pages, regs);
-#endif
BLANK();
DEFINE(__NR_syscall_max, sizeof(syscalls) - 1);
DEFINE(NR_syscalls, sizeof(syscalls));
diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
index 99332f550c48..cf42206926af 100644
--- a/arch/x86/kernel/asm-offsets_64.c
+++ b/arch/x86/kernel/asm-offsets_64.c
@@ -20,7 +20,6 @@ static char syscalls_ia32[] = {
int main(void)
{
#ifdef CONFIG_PARAVIRT
- OFFSET(PV_IRQ_adjust_exception_frame, pv_irq_ops, adjust_exception_frame);
OFFSET(PV_CPU_usergs_sysret64, pv_cpu_ops, usergs_sysret64);
OFFSET(PV_CPU_swapgs, pv_cpu_ops, swapgs);
BLANK();
diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index 52000010c62e..e17942c131c8 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -21,6 +21,7 @@ obj-y += common.o
obj-y += rdrand.o
obj-y += match.o
obj-y += bugs.o
+obj-$(CONFIG_CPU_FREQ) += aperfmperf.o
obj-$(CONFIG_PROC_FS) += proc.o
obj-$(CONFIG_X86_FEATURE_NAMES) += capflags.o powerflags.o
@@ -32,7 +33,7 @@ obj-$(CONFIG_CPU_SUP_CENTAUR) += centaur.o
obj-$(CONFIG_CPU_SUP_TRANSMETA_32) += transmeta.o
obj-$(CONFIG_CPU_SUP_UMC_32) += umc.o
-obj-$(CONFIG_INTEL_RDT_A) += intel_rdt.o intel_rdt_rdtgroup.o intel_rdt_schemata.o
+obj-$(CONFIG_INTEL_RDT) += intel_rdt.o intel_rdt_rdtgroup.o intel_rdt_monitor.o intel_rdt_ctrlmondata.o
obj-$(CONFIG_X86_MCE) += mcheck/
obj-$(CONFIG_MTRR) += mtrr/
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index bb5abe8f5fd4..d58184b7cd44 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -134,6 +134,7 @@ static void init_amd_k6(struct cpuinfo_x86 *c)
n = K6_BUG_LOOP;
f_vide = vide;
+ OPTIMIZER_HIDE_VAR(f_vide);
d = rdtsc();
while (n--)
f_vide();
@@ -296,13 +297,29 @@ static int nearby_node(int apicid)
}
#endif
+#ifdef CONFIG_SMP
+/*
+ * Fix up cpu_core_id for pre-F17h systems to be in the
+ * [0 .. cores_per_node - 1] range. Not really needed but
+ * kept so as not to break existing setups.
+ */
+static void legacy_fixup_core_id(struct cpuinfo_x86 *c)
+{
+ u32 cus_per_node;
+
+ if (c->x86 >= 0x17)
+ return;
+
+ cus_per_node = c->x86_max_cores / nodes_per_socket;
+ c->cpu_core_id %= cus_per_node;
+}
+
/*
* Fixup core topology information for
* (1) AMD multi-node processors
* Assumption: Number of cores in each internal node is the same.
* (2) AMD processors supporting compute units
*/
-#ifdef CONFIG_SMP
static void amd_get_topology(struct cpuinfo_x86 *c)
{
u8 node_id;
@@ -353,15 +370,9 @@ static void amd_get_topology(struct cpuinfo_x86 *c)
} else
return;
- /* fixup multi-node processor information */
if (nodes_per_socket > 1) {
- u32 cus_per_node;
-
set_cpu_cap(c, X86_FEATURE_AMD_DCM);
- cus_per_node = c->x86_max_cores / nodes_per_socket;
-
- /* core id has to be in the [0 .. cores_per_node - 1] range */
- c->cpu_core_id %= cus_per_node;
+ legacy_fixup_core_id(c);
}
}
#endif
@@ -547,8 +558,12 @@ static void bsp_init_amd(struct cpuinfo_x86 *c)
static void early_init_amd(struct cpuinfo_x86 *c)
{
+ u32 dummy;
+
early_init_amd_mc(c);
+ rdmsr_safe(MSR_AMD64_PATCH_LEVEL, &c->microcode, &dummy);
+
/*
* c->x86_power is 8000_0007 edx. Bit 8 is TSC runs at constant rate
* with P/T states and does not stop in deep C-states
@@ -611,6 +626,27 @@ static void early_init_amd(struct cpuinfo_x86 *c)
*/
if (cpu_has_amd_erratum(c, amd_erratum_400))
set_cpu_bug(c, X86_BUG_AMD_E400);
+
+ /*
+ * BIOS support is required for SME. If BIOS has enabled SME then
+ * adjust x86_phys_bits by the SME physical address space reduction
+ * value. If BIOS has not enabled SME then don't advertise the
+ * feature (set in scattered.c). Also, since the SME support requires
+ * long mode, don't advertise the feature under CONFIG_X86_32.
+ */
+ if (cpu_has(c, X86_FEATURE_SME)) {
+ u64 msr;
+
+ /* Check if SME is enabled */
+ rdmsrl(MSR_K8_SYSCFG, msr);
+ if (msr & MSR_K8_SYSCFG_MEM_ENCRYPT) {
+ c->x86_phys_bits -= (cpuid_ebx(0x8000001f) >> 6) & 0x3f;
+ if (IS_ENABLED(CONFIG_X86_32))
+ clear_cpu_cap(c, X86_FEATURE_SME);
+ } else {
+ clear_cpu_cap(c, X86_FEATURE_SME);
+ }
+ }
}
static void init_amd_k8(struct cpuinfo_x86 *c)
@@ -727,10 +763,18 @@ static void init_amd_bd(struct cpuinfo_x86 *c)
}
}
-static void init_amd(struct cpuinfo_x86 *c)
+static void init_amd_zn(struct cpuinfo_x86 *c)
{
- u32 dummy;
+ /*
+ * Fix erratum 1076: CPB feature bit not being set in CPUID. It affects
+ * all up to and including B1.
+ */
+ if (c->x86_model <= 1 && c->x86_mask <= 1)
+ set_cpu_cap(c, X86_FEATURE_CPB);
+}
+static void init_amd(struct cpuinfo_x86 *c)
+{
early_init_amd(c);
/*
@@ -757,6 +801,7 @@ static void init_amd(struct cpuinfo_x86 *c)
case 0x10: init_amd_gh(c); break;
case 0x12: init_amd_ln(c); break;
case 0x15: init_amd_bd(c); break;
+ case 0x17: init_amd_zn(c); break;
}
/* Enable workaround for FXSAVE leak */
@@ -792,8 +837,6 @@ static void init_amd(struct cpuinfo_x86 *c)
if (c->x86 > 0x11)
set_cpu_cap(c, X86_FEATURE_ARAT);
- rdmsr_safe(MSR_AMD64_PATCH_LEVEL, &c->microcode, &dummy);
-
/* 3DNow or LM implies PREFETCHW */
if (!cpu_has(c, X86_FEATURE_3DNOWPREFETCH))
if (cpu_has(c, X86_FEATURE_3DNOW) || cpu_has(c, X86_FEATURE_LM))
diff --git a/arch/x86/kernel/cpu/aperfmperf.c b/arch/x86/kernel/cpu/aperfmperf.c
new file mode 100644
index 000000000000..0ee83321a313
--- /dev/null
+++ b/arch/x86/kernel/cpu/aperfmperf.c
@@ -0,0 +1,94 @@
+/*
+ * x86 APERF/MPERF KHz calculation for
+ * /sys/.../cpufreq/scaling_cur_freq
+ *
+ * Copyright (C) 2017 Intel Corp.
+ * Author: Len Brown <len.brown@intel.com>
+ *
+ * This file is licensed under GPLv2.
+ */
+
+#include <linux/delay.h>
+#include <linux/ktime.h>
+#include <linux/math64.h>
+#include <linux/percpu.h>
+#include <linux/smp.h>
+
+struct aperfmperf_sample {
+ unsigned int khz;
+ ktime_t time;
+ u64 aperf;
+ u64 mperf;
+};
+
+static DEFINE_PER_CPU(struct aperfmperf_sample, samples);
+
+#define APERFMPERF_CACHE_THRESHOLD_MS 10
+#define APERFMPERF_REFRESH_DELAY_MS 20
+#define APERFMPERF_STALE_THRESHOLD_MS 1000
+
+/*
+ * aperfmperf_snapshot_khz()
+ * On the current CPU, snapshot APERF, MPERF, and jiffies
+ * unless we already did it within 10ms
+ * calculate kHz, save snapshot
+ */
+static void aperfmperf_snapshot_khz(void *dummy)
+{
+ u64 aperf, aperf_delta;
+ u64 mperf, mperf_delta;
+ struct aperfmperf_sample *s = this_cpu_ptr(&samples);
+ ktime_t now = ktime_get();
+ s64 time_delta = ktime_ms_delta(now, s->time);
+ unsigned long flags;
+
+ /* Don't bother re-computing within the cache threshold time. */
+ if (time_delta < APERFMPERF_CACHE_THRESHOLD_MS)
+ return;
+
+ local_irq_save(flags);
+ rdmsrl(MSR_IA32_APERF, aperf);
+ rdmsrl(MSR_IA32_MPERF, mperf);
+ local_irq_restore(flags);
+
+ aperf_delta = aperf - s->aperf;
+ mperf_delta = mperf - s->mperf;
+
+ /*
+ * There is no architectural guarantee that MPERF
+ * increments faster than we can read it.
+ */
+ if (mperf_delta == 0)
+ return;
+
+ s->time = now;
+ s->aperf = aperf;
+ s->mperf = mperf;
+
+ /* If the previous iteration was too long ago, discard it. */
+ if (time_delta > APERFMPERF_STALE_THRESHOLD_MS)
+ s->khz = 0;
+ else
+ s->khz = div64_u64((cpu_khz * aperf_delta), mperf_delta);
+}
+
+unsigned int arch_freq_get_on_cpu(int cpu)
+{
+ unsigned int khz;
+
+ if (!cpu_khz)
+ return 0;
+
+ if (!static_cpu_has(X86_FEATURE_APERFMPERF))
+ return 0;
+
+ smp_call_function_single(cpu, aperfmperf_snapshot_khz, NULL, 1);
+ khz = per_cpu(samples.khz, cpu);
+ if (khz)
+ return khz;
+
+ msleep(APERFMPERF_REFRESH_DELAY_MS);
+ smp_call_function_single(cpu, aperfmperf_snapshot_khz, NULL, 1);
+
+ return per_cpu(samples.khz, cpu);
+}
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index c8b39870f33e..c9176bae7fd8 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -168,6 +168,24 @@ static int __init x86_mpx_setup(char *s)
}
__setup("nompx", x86_mpx_setup);
+#ifdef CONFIG_X86_64
+static int __init x86_nopcid_setup(char *s)
+{
+ /* nopcid doesn't accept parameters */
+ if (s)
+ return -EINVAL;
+
+ /* do not emit a message if the feature is not present */
+ if (!boot_cpu_has(X86_FEATURE_PCID))
+ return 0;
+
+ setup_clear_cpu_cap(X86_FEATURE_PCID);
+ pr_info("nopcid: PCID feature disabled\n");
+ return 0;
+}
+early_param("nopcid", x86_nopcid_setup);
+#endif
+
static int __init x86_noinvpcid_setup(char *s)
{
/* noinvpcid doesn't accept parameters */
@@ -886,6 +904,14 @@ static void __init early_identify_cpu(struct cpuinfo_x86 *c)
setup_force_cpu_cap(X86_FEATURE_ALWAYS);
fpu__init_system(c);
+
+#ifdef CONFIG_X86_32
+ /*
+ * Regardless of whether PCID is enumerated, the SDM says
+ * that it can't be enabled in 32-bit mode.
+ */
+ setup_clear_cpu_cap(X86_FEATURE_PCID);
+#endif
}
void __init early_cpu_init(void)
@@ -1289,15 +1315,6 @@ static __init int setup_disablecpuid(char *arg)
__setup("clearcpuid=", setup_disablecpuid);
#ifdef CONFIG_X86_64
-struct desc_ptr idt_descr __ro_after_init = {
- .size = NR_VECTORS * 16 - 1,
- .address = (unsigned long) idt_table,
-};
-const struct desc_ptr debug_idt_descr = {
- .size = NR_VECTORS * 16 - 1,
- .address = (unsigned long) debug_idt_table,
-};
-
DEFINE_PER_CPU_FIRST(union irq_stack_union,
irq_stack_union) __aligned(PAGE_SIZE) __visible;
@@ -1552,6 +1569,7 @@ void cpu_init(void)
mmgrab(&init_mm);
me->active_mm = &init_mm;
BUG_ON(me->mm);
+ initialize_tlbstate_and_flush();
enter_lazy_tlb(&init_mm, me);
load_sp0(t, &current->thread);
@@ -1606,6 +1624,7 @@ void cpu_init(void)
mmgrab(&init_mm);
curr->active_mm = &init_mm;
BUG_ON(curr->mm);
+ initialize_tlbstate_and_flush();
enter_lazy_tlb(&init_mm, curr);
load_sp0(t, thread);
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index c55fb2cb2acc..9990a71e311f 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -811,10 +811,26 @@ static int __cache_amd_cpumap_setup(unsigned int cpu, int index,
struct cacheinfo *this_leaf;
int i, sibling;
- if (boot_cpu_has(X86_FEATURE_TOPOEXT)) {
+ /*
+ * For L3, always use the pre-calculated cpu_llc_shared_mask
+ * to derive shared_cpu_map.
+ */
+ if (index == 3) {
+ for_each_cpu(i, cpu_llc_shared_mask(cpu)) {
+ this_cpu_ci = get_cpu_cacheinfo(i);
+ if (!this_cpu_ci->info_list)
+ continue;
+ this_leaf = this_cpu_ci->info_list + index;
+ for_each_cpu(sibling, cpu_llc_shared_mask(cpu)) {
+ if (!cpu_online(sibling))
+ continue;
+ cpumask_set_cpu(sibling,
+ &this_leaf->shared_cpu_map);
+ }
+ }
+ } else if (boot_cpu_has(X86_FEATURE_TOPOEXT)) {
unsigned int apicid, nshared, first, last;
- this_leaf = this_cpu_ci->info_list + index;
nshared = base->eax.split.num_threads_sharing + 1;
apicid = cpu_data(cpu).apicid;
first = apicid - (apicid % nshared);
@@ -839,19 +855,6 @@ static int __cache_amd_cpumap_setup(unsigned int cpu, int index,
&this_leaf->shared_cpu_map);
}
}
- } else if (index == 3) {
- for_each_cpu(i, cpu_llc_shared_mask(cpu)) {
- this_cpu_ci = get_cpu_cacheinfo(i);
- if (!this_cpu_ci->info_list)
- continue;
- this_leaf = this_cpu_ci->info_list + index;
- for_each_cpu(sibling, cpu_llc_shared_mask(cpu)) {
- if (!cpu_online(sibling))
- continue;
- cpumask_set_cpu(sibling,
- &this_leaf->shared_cpu_map);
- }
- }
} else
return 0;
diff --git a/arch/x86/kernel/cpu/intel_rdt.c b/arch/x86/kernel/cpu/intel_rdt.c
index 5b366462f579..cd5fc61ba450 100644
--- a/arch/x86/kernel/cpu/intel_rdt.c
+++ b/arch/x86/kernel/cpu/intel_rdt.c
@@ -30,7 +30,8 @@
#include <linux/cpuhotplug.h>
#include <asm/intel-family.h>
-#include <asm/intel_rdt.h>
+#include <asm/intel_rdt_sched.h>
+#include "intel_rdt.h"
#define MAX_MBA_BW 100u
#define MBA_IS_LINEAR 0x4
@@ -38,7 +39,13 @@
/* Mutex to protect rdtgroup access. */
DEFINE_MUTEX(rdtgroup_mutex);
-DEFINE_PER_CPU_READ_MOSTLY(int, cpu_closid);
+/*
+ * The cached intel_pqr_state is strictly per CPU and can never be
+ * updated from a remote CPU. Functions which modify the state
+ * are called with interrupts disabled and no preemption, which
+ * is sufficient for the protection.
+ */
+DEFINE_PER_CPU(struct intel_pqr_state, pqr_state);
/*
* Used to store the max resource name width and max resource data width
@@ -46,6 +53,12 @@ DEFINE_PER_CPU_READ_MOSTLY(int, cpu_closid);
*/
int max_name_width, max_data_width;
+/*
+ * Global boolean for rdt_alloc which is true if any
+ * resource allocation is enabled.
+ */
+bool rdt_alloc_capable;
+
static void
mba_wrmsr(struct rdt_domain *d, struct msr_param *m, struct rdt_resource *r);
static void
@@ -54,7 +67,9 @@ cat_wrmsr(struct rdt_domain *d, struct msr_param *m, struct rdt_resource *r);
#define domain_init(id) LIST_HEAD_INIT(rdt_resources_all[id].domains)
struct rdt_resource rdt_resources_all[] = {
+ [RDT_RESOURCE_L3] =
{
+ .rid = RDT_RESOURCE_L3,
.name = "L3",
.domains = domain_init(RDT_RESOURCE_L3),
.msr_base = IA32_L3_CBM_BASE,
@@ -67,8 +82,11 @@ struct rdt_resource rdt_resources_all[] = {
},
.parse_ctrlval = parse_cbm,
.format_str = "%d=%0*x",
+ .fflags = RFTYPE_RES_CACHE,
},
+ [RDT_RESOURCE_L3DATA] =
{
+ .rid = RDT_RESOURCE_L3DATA,
.name = "L3DATA",
.domains = domain_init(RDT_RESOURCE_L3DATA),
.msr_base = IA32_L3_CBM_BASE,
@@ -81,8 +99,11 @@ struct rdt_resource rdt_resources_all[] = {
},
.parse_ctrlval = parse_cbm,
.format_str = "%d=%0*x",
+ .fflags = RFTYPE_RES_CACHE,
},
+ [RDT_RESOURCE_L3CODE] =
{
+ .rid = RDT_RESOURCE_L3CODE,
.name = "L3CODE",
.domains = domain_init(RDT_RESOURCE_L3CODE),
.msr_base = IA32_L3_CBM_BASE,
@@ -95,8 +116,11 @@ struct rdt_resource rdt_resources_all[] = {
},
.parse_ctrlval = parse_cbm,
.format_str = "%d=%0*x",
+ .fflags = RFTYPE_RES_CACHE,
},
+ [RDT_RESOURCE_L2] =
{
+ .rid = RDT_RESOURCE_L2,
.name = "L2",
.domains = domain_init(RDT_RESOURCE_L2),
.msr_base = IA32_L2_CBM_BASE,
@@ -109,8 +133,11 @@ struct rdt_resource rdt_resources_all[] = {
},
.parse_ctrlval = parse_cbm,
.format_str = "%d=%0*x",
+ .fflags = RFTYPE_RES_CACHE,
},
+ [RDT_RESOURCE_MBA] =
{
+ .rid = RDT_RESOURCE_MBA,
.name = "MB",
.domains = domain_init(RDT_RESOURCE_MBA),
.msr_base = IA32_MBA_THRTL_BASE,
@@ -118,6 +145,7 @@ struct rdt_resource rdt_resources_all[] = {
.cache_level = 3,
.parse_ctrlval = parse_bw,
.format_str = "%d=%*d",
+ .fflags = RFTYPE_RES_MB,
},
};
@@ -144,33 +172,28 @@ static unsigned int cbm_idx(struct rdt_resource *r, unsigned int closid)
* is always 20 on hsw server parts. The minimum cache bitmask length
* allowed for HSW server is always 2 bits. Hardcode all of them.
*/
-static inline bool cache_alloc_hsw_probe(void)
+static inline void cache_alloc_hsw_probe(void)
{
- if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL &&
- boot_cpu_data.x86 == 6 &&
- boot_cpu_data.x86_model == INTEL_FAM6_HASWELL_X) {
- struct rdt_resource *r = &rdt_resources_all[RDT_RESOURCE_L3];
- u32 l, h, max_cbm = BIT_MASK(20) - 1;
-
- if (wrmsr_safe(IA32_L3_CBM_BASE, max_cbm, 0))
- return false;
- rdmsr(IA32_L3_CBM_BASE, l, h);
+ struct rdt_resource *r = &rdt_resources_all[RDT_RESOURCE_L3];
+ u32 l, h, max_cbm = BIT_MASK(20) - 1;
- /* If all the bits were set in MSR, return success */
- if (l != max_cbm)
- return false;
+ if (wrmsr_safe(IA32_L3_CBM_BASE, max_cbm, 0))
+ return;
+ rdmsr(IA32_L3_CBM_BASE, l, h);
- r->num_closid = 4;
- r->default_ctrl = max_cbm;
- r->cache.cbm_len = 20;
- r->cache.min_cbm_bits = 2;
- r->capable = true;
- r->enabled = true;
+ /* If all the bits were set in MSR, return success */
+ if (l != max_cbm)
+ return;
- return true;
- }
+ r->num_closid = 4;
+ r->default_ctrl = max_cbm;
+ r->cache.cbm_len = 20;
+ r->cache.shareable_bits = 0xc0000;
+ r->cache.min_cbm_bits = 2;
+ r->alloc_capable = true;
+ r->alloc_enabled = true;
- return false;
+ rdt_alloc_capable = true;
}
/*
@@ -213,15 +236,14 @@ static bool rdt_get_mem_config(struct rdt_resource *r)
return false;
}
r->data_width = 3;
- rdt_get_mba_infofile(r);
- r->capable = true;
- r->enabled = true;
+ r->alloc_capable = true;
+ r->alloc_enabled = true;
return true;
}
-static void rdt_get_cache_config(int idx, struct rdt_resource *r)
+static void rdt_get_cache_alloc_cfg(int idx, struct rdt_resource *r)
{
union cpuid_0x10_1_eax eax;
union cpuid_0x10_x_edx edx;
@@ -231,10 +253,10 @@ static void rdt_get_cache_config(int idx, struct rdt_resource *r)
r->num_closid = edx.split.cos_max + 1;
r->cache.cbm_len = eax.split.cbm_len + 1;
r->default_ctrl = BIT_MASK(eax.split.cbm_len + 1) - 1;
+ r->cache.shareable_bits = ebx & r->default_ctrl;
r->data_width = (r->cache.cbm_len + 3) / 4;
- rdt_get_cache_infofile(r);
- r->capable = true;
- r->enabled = true;
+ r->alloc_capable = true;
+ r->alloc_enabled = true;
}
static void rdt_get_cdp_l3_config(int type)
@@ -246,12 +268,12 @@ static void rdt_get_cdp_l3_config(int type)
r->cache.cbm_len = r_l3->cache.cbm_len;
r->default_ctrl = r_l3->default_ctrl;
r->data_width = (r->cache.cbm_len + 3) / 4;
- r->capable = true;
+ r->alloc_capable = true;
/*
* By default, CDP is disabled. CDP can be enabled by mount parameter
* "cdp" during resctrl file system mount time.
*/
- r->enabled = false;
+ r->alloc_enabled = false;
}
static int get_cache_id(int cpu, int level)
@@ -300,6 +322,19 @@ cat_wrmsr(struct rdt_domain *d, struct msr_param *m, struct rdt_resource *r)
wrmsrl(r->msr_base + cbm_idx(r, i), d->ctrl_val[i]);
}
+struct rdt_domain *get_domain_from_cpu(int cpu, struct rdt_resource *r)
+{
+ struct rdt_domain *d;
+
+ list_for_each_entry(d, &r->domains, list) {
+ /* Find the domain that contains this CPU */
+ if (cpumask_test_cpu(cpu, &d->cpu_mask))
+ return d;
+ }
+
+ return NULL;
+}
+
void rdt_ctrl_update(void *arg)
{
struct msr_param *m = arg;
@@ -307,12 +342,10 @@ void rdt_ctrl_update(void *arg)
int cpu = smp_processor_id();
struct rdt_domain *d;
- list_for_each_entry(d, &r->domains, list) {
- /* Find the domain that contains this CPU */
- if (cpumask_test_cpu(cpu, &d->cpu_mask)) {
- r->msr_update(d, m, r);
- return;
- }
+ d = get_domain_from_cpu(cpu, r);
+ if (d) {
+ r->msr_update(d, m, r);
+ return;
}
pr_warn_once("cpu %d not found in any domain for resource %s\n",
cpu, r->name);
@@ -326,8 +359,8 @@ void rdt_ctrl_update(void *arg)
* caller, return the first domain whose id is bigger than the input id.
* The domain list is sorted by id in ascending order.
*/
-static struct rdt_domain *rdt_find_domain(struct rdt_resource *r, int id,
- struct list_head **pos)
+struct rdt_domain *rdt_find_domain(struct rdt_resource *r, int id,
+ struct list_head **pos)
{
struct rdt_domain *d;
struct list_head *l;
@@ -377,6 +410,44 @@ static int domain_setup_ctrlval(struct rdt_resource *r, struct rdt_domain *d)
return 0;
}
+static int domain_setup_mon_state(struct rdt_resource *r, struct rdt_domain *d)
+{
+ size_t tsize;
+
+ if (is_llc_occupancy_enabled()) {
+ d->rmid_busy_llc = kcalloc(BITS_TO_LONGS(r->num_rmid),
+ sizeof(unsigned long),
+ GFP_KERNEL);
+ if (!d->rmid_busy_llc)
+ return -ENOMEM;
+ INIT_DELAYED_WORK(&d->cqm_limbo, cqm_handle_limbo);
+ }
+ if (is_mbm_total_enabled()) {
+ tsize = sizeof(*d->mbm_total);
+ d->mbm_total = kcalloc(r->num_rmid, tsize, GFP_KERNEL);
+ if (!d->mbm_total) {
+ kfree(d->rmid_busy_llc);
+ return -ENOMEM;
+ }
+ }
+ if (is_mbm_local_enabled()) {
+ tsize = sizeof(*d->mbm_local);
+ d->mbm_local = kcalloc(r->num_rmid, tsize, GFP_KERNEL);
+ if (!d->mbm_local) {
+ kfree(d->rmid_busy_llc);
+ kfree(d->mbm_total);
+ return -ENOMEM;
+ }
+ }
+
+ if (is_mbm_enabled()) {
+ INIT_DELAYED_WORK(&d->mbm_over, mbm_handle_overflow);
+ mbm_setup_overflow_handler(d, MBM_OVERFLOW_INTERVAL);
+ }
+
+ return 0;
+}
+
/*
* domain_add_cpu - Add a cpu to a resource's domain list.
*
@@ -412,14 +483,26 @@ static void domain_add_cpu(int cpu, struct rdt_resource *r)
return;
d->id = id;
+ cpumask_set_cpu(cpu, &d->cpu_mask);
- if (domain_setup_ctrlval(r, d)) {
+ if (r->alloc_capable && domain_setup_ctrlval(r, d)) {
+ kfree(d);
+ return;
+ }
+
+ if (r->mon_capable && domain_setup_mon_state(r, d)) {
kfree(d);
return;
}
- cpumask_set_cpu(cpu, &d->cpu_mask);
list_add_tail(&d->list, add_pos);
+
+ /*
+ * If resctrl is mounted, add
+ * per domain monitor data directories.
+ */
+ if (static_branch_unlikely(&rdt_mon_enable_key))
+ mkdir_mondata_subdir_allrdtgrp(r, d);
}
static void domain_remove_cpu(int cpu, struct rdt_resource *r)
@@ -435,19 +518,58 @@ static void domain_remove_cpu(int cpu, struct rdt_resource *r)
cpumask_clear_cpu(cpu, &d->cpu_mask);
if (cpumask_empty(&d->cpu_mask)) {
+ /*
+ * If resctrl is mounted, remove all the
+ * per domain monitor data directories.
+ */
+ if (static_branch_unlikely(&rdt_mon_enable_key))
+ rmdir_mondata_subdir_allrdtgrp(r, d->id);
kfree(d->ctrl_val);
+ kfree(d->rmid_busy_llc);
+ kfree(d->mbm_total);
+ kfree(d->mbm_local);
list_del(&d->list);
+ if (is_mbm_enabled())
+ cancel_delayed_work(&d->mbm_over);
+ if (is_llc_occupancy_enabled() && has_busy_rmid(r, d)) {
+ /*
+ * When a package is going down, forcefully
+ * decrement rmid->ebusy. There is no way to know
+ * that the L3 was flushed and hence may lead to
+ * incorrect counts in rare scenarios, but leaving
+ * the RMID as busy creates RMID leaks if the
+ * package never comes back.
+ */
+ __check_limbo(d, true);
+ cancel_delayed_work(&d->cqm_limbo);
+ }
+
kfree(d);
+ return;
+ }
+
+ if (r == &rdt_resources_all[RDT_RESOURCE_L3]) {
+ if (is_mbm_enabled() && cpu == d->mbm_work_cpu) {
+ cancel_delayed_work(&d->mbm_over);
+ mbm_setup_overflow_handler(d, 0);
+ }
+ if (is_llc_occupancy_enabled() && cpu == d->cqm_work_cpu &&
+ has_busy_rmid(r, d)) {
+ cancel_delayed_work(&d->cqm_limbo);
+ cqm_setup_limbo_handler(d, 0);
+ }
}
}
-static void clear_closid(int cpu)
+static void clear_closid_rmid(int cpu)
{
struct intel_pqr_state *state = this_cpu_ptr(&pqr_state);
- per_cpu(cpu_closid, cpu) = 0;
- state->closid = 0;
- wrmsr(MSR_IA32_PQR_ASSOC, state->rmid, 0);
+ state->default_closid = 0;
+ state->default_rmid = 0;
+ state->cur_closid = 0;
+ state->cur_rmid = 0;
+ wrmsr(IA32_PQR_ASSOC, 0, 0);
}
static int intel_rdt_online_cpu(unsigned int cpu)
@@ -459,12 +581,23 @@ static int intel_rdt_online_cpu(unsigned int cpu)
domain_add_cpu(cpu, r);
/* The cpu is set in default rdtgroup after online. */
cpumask_set_cpu(cpu, &rdtgroup_default.cpu_mask);
- clear_closid(cpu);
+ clear_closid_rmid(cpu);
mutex_unlock(&rdtgroup_mutex);
return 0;
}
+static void clear_childcpus(struct rdtgroup *r, unsigned int cpu)
+{
+ struct rdtgroup *cr;
+
+ list_for_each_entry(cr, &r->mon.crdtgrp_list, mon.crdtgrp_list) {
+ if (cpumask_test_and_clear_cpu(cpu, &cr->cpu_mask)) {
+ break;
+ }
+ }
+}
+
static int intel_rdt_offline_cpu(unsigned int cpu)
{
struct rdtgroup *rdtgrp;
@@ -474,10 +607,12 @@ static int intel_rdt_offline_cpu(unsigned int cpu)
for_each_capable_rdt_resource(r)
domain_remove_cpu(cpu, r);
list_for_each_entry(rdtgrp, &rdt_all_groups, rdtgroup_list) {
- if (cpumask_test_and_clear_cpu(cpu, &rdtgrp->cpu_mask))
+ if (cpumask_test_and_clear_cpu(cpu, &rdtgrp->cpu_mask)) {
+ clear_childcpus(rdtgrp, cpu);
break;
+ }
}
- clear_closid(cpu);
+ clear_closid_rmid(cpu);
mutex_unlock(&rdtgroup_mutex);
return 0;
@@ -492,7 +627,7 @@ static __init void rdt_init_padding(void)
struct rdt_resource *r;
int cl;
- for_each_capable_rdt_resource(r) {
+ for_each_alloc_capable_rdt_resource(r) {
cl = strlen(r->name);
if (cl > max_name_width)
max_name_width = cl;
@@ -502,38 +637,153 @@ static __init void rdt_init_padding(void)
}
}
-static __init bool get_rdt_resources(void)
+enum {
+ RDT_FLAG_CMT,
+ RDT_FLAG_MBM_TOTAL,
+ RDT_FLAG_MBM_LOCAL,
+ RDT_FLAG_L3_CAT,
+ RDT_FLAG_L3_CDP,
+ RDT_FLAG_L2_CAT,
+ RDT_FLAG_MBA,
+};
+
+#define RDT_OPT(idx, n, f) \
+[idx] = { \
+ .name = n, \
+ .flag = f \
+}
+
+struct rdt_options {
+ char *name;
+ int flag;
+ bool force_off, force_on;
+};
+
+static struct rdt_options rdt_options[] __initdata = {
+ RDT_OPT(RDT_FLAG_CMT, "cmt", X86_FEATURE_CQM_OCCUP_LLC),
+ RDT_OPT(RDT_FLAG_MBM_TOTAL, "mbmtotal", X86_FEATURE_CQM_MBM_TOTAL),
+ RDT_OPT(RDT_FLAG_MBM_LOCAL, "mbmlocal", X86_FEATURE_CQM_MBM_LOCAL),
+ RDT_OPT(RDT_FLAG_L3_CAT, "l3cat", X86_FEATURE_CAT_L3),
+ RDT_OPT(RDT_FLAG_L3_CDP, "l3cdp", X86_FEATURE_CDP_L3),
+ RDT_OPT(RDT_FLAG_L2_CAT, "l2cat", X86_FEATURE_CAT_L2),
+ RDT_OPT(RDT_FLAG_MBA, "mba", X86_FEATURE_MBA),
+};
+#define NUM_RDT_OPTIONS ARRAY_SIZE(rdt_options)
+
+static int __init set_rdt_options(char *str)
+{
+ struct rdt_options *o;
+ bool force_off;
+ char *tok;
+
+ if (*str == '=')
+ str++;
+ while ((tok = strsep(&str, ",")) != NULL) {
+ force_off = *tok == '!';
+ if (force_off)
+ tok++;
+ for (o = rdt_options; o < &rdt_options[NUM_RDT_OPTIONS]; o++) {
+ if (strcmp(tok, o->name) == 0) {
+ if (force_off)
+ o->force_off = true;
+ else
+ o->force_on = true;
+ break;
+ }
+ }
+ }
+ return 1;
+}
+__setup("rdt", set_rdt_options);
+
+static bool __init rdt_cpu_has(int flag)
+{
+ bool ret = boot_cpu_has(flag);
+ struct rdt_options *o;
+
+ if (!ret)
+ return ret;
+
+ for (o = rdt_options; o < &rdt_options[NUM_RDT_OPTIONS]; o++) {
+ if (flag == o->flag) {
+ if (o->force_off)
+ ret = false;
+ if (o->force_on)
+ ret = true;
+ break;
+ }
+ }
+ return ret;
+}
+
+static __init bool get_rdt_alloc_resources(void)
{
bool ret = false;
- if (cache_alloc_hsw_probe())
+ if (rdt_alloc_capable)
return true;
if (!boot_cpu_has(X86_FEATURE_RDT_A))
return false;
- if (boot_cpu_has(X86_FEATURE_CAT_L3)) {
- rdt_get_cache_config(1, &rdt_resources_all[RDT_RESOURCE_L3]);
- if (boot_cpu_has(X86_FEATURE_CDP_L3)) {
+ if (rdt_cpu_has(X86_FEATURE_CAT_L3)) {
+ rdt_get_cache_alloc_cfg(1, &rdt_resources_all[RDT_RESOURCE_L3]);
+ if (rdt_cpu_has(X86_FEATURE_CDP_L3)) {
rdt_get_cdp_l3_config(RDT_RESOURCE_L3DATA);
rdt_get_cdp_l3_config(RDT_RESOURCE_L3CODE);
}
ret = true;
}
- if (boot_cpu_has(X86_FEATURE_CAT_L2)) {
+ if (rdt_cpu_has(X86_FEATURE_CAT_L2)) {
/* CPUID 0x10.2 fields are same format at 0x10.1 */
- rdt_get_cache_config(2, &rdt_resources_all[RDT_RESOURCE_L2]);
+ rdt_get_cache_alloc_cfg(2, &rdt_resources_all[RDT_RESOURCE_L2]);
ret = true;
}
- if (boot_cpu_has(X86_FEATURE_MBA)) {
+ if (rdt_cpu_has(X86_FEATURE_MBA)) {
if (rdt_get_mem_config(&rdt_resources_all[RDT_RESOURCE_MBA]))
ret = true;
}
-
return ret;
}
+static __init bool get_rdt_mon_resources(void)
+{
+ if (rdt_cpu_has(X86_FEATURE_CQM_OCCUP_LLC))
+ rdt_mon_features |= (1 << QOS_L3_OCCUP_EVENT_ID);
+ if (rdt_cpu_has(X86_FEATURE_CQM_MBM_TOTAL))
+ rdt_mon_features |= (1 << QOS_L3_MBM_TOTAL_EVENT_ID);
+ if (rdt_cpu_has(X86_FEATURE_CQM_MBM_LOCAL))
+ rdt_mon_features |= (1 << QOS_L3_MBM_LOCAL_EVENT_ID);
+
+ if (!rdt_mon_features)
+ return false;
+
+ return !rdt_get_mon_l3_config(&rdt_resources_all[RDT_RESOURCE_L3]);
+}
+
+static __init void rdt_quirks(void)
+{
+ switch (boot_cpu_data.x86_model) {
+ case INTEL_FAM6_HASWELL_X:
+ if (!rdt_options[RDT_FLAG_L3_CAT].force_off)
+ cache_alloc_hsw_probe();
+ break;
+ case INTEL_FAM6_SKYLAKE_X:
+ if (boot_cpu_data.x86_mask <= 4)
+ set_rdt_options("!cmt,!mbmtotal,!mbmlocal,!l3cat");
+ }
+}
+
+static __init bool get_rdt_resources(void)
+{
+ rdt_quirks();
+ rdt_alloc_capable = get_rdt_alloc_resources();
+ rdt_mon_capable = get_rdt_mon_resources();
+
+ return (rdt_mon_capable || rdt_alloc_capable);
+}
+
static int __init intel_rdt_late_init(void)
{
struct rdt_resource *r;
@@ -556,9 +806,12 @@ static int __init intel_rdt_late_init(void)
return ret;
}
- for_each_capable_rdt_resource(r)
+ for_each_alloc_capable_rdt_resource(r)
pr_info("Intel RDT %s allocation detected\n", r->name);
+ for_each_mon_capable_rdt_resource(r)
+ pr_info("Intel RDT %s monitoring detected\n", r->name);
+
return 0;
}
diff --git a/arch/x86/kernel/cpu/intel_rdt.h b/arch/x86/kernel/cpu/intel_rdt.h
new file mode 100644
index 000000000000..ebaddaeef023
--- /dev/null
+++ b/arch/x86/kernel/cpu/intel_rdt.h
@@ -0,0 +1,440 @@
+#ifndef _ASM_X86_INTEL_RDT_H
+#define _ASM_X86_INTEL_RDT_H
+
+#include <linux/sched.h>
+#include <linux/kernfs.h>
+#include <linux/jump_label.h>
+
+#define IA32_L3_QOS_CFG 0xc81
+#define IA32_L3_CBM_BASE 0xc90
+#define IA32_L2_CBM_BASE 0xd10
+#define IA32_MBA_THRTL_BASE 0xd50
+
+#define L3_QOS_CDP_ENABLE 0x01ULL
+
+/*
+ * Event IDs are used to program IA32_QM_EVTSEL before reading event
+ * counter from IA32_QM_CTR
+ */
+#define QOS_L3_OCCUP_EVENT_ID 0x01
+#define QOS_L3_MBM_TOTAL_EVENT_ID 0x02
+#define QOS_L3_MBM_LOCAL_EVENT_ID 0x03
+
+#define CQM_LIMBOCHECK_INTERVAL 1000
+
+#define MBM_CNTR_WIDTH 24
+#define MBM_OVERFLOW_INTERVAL 1000
+
+#define RMID_VAL_ERROR BIT_ULL(63)
+#define RMID_VAL_UNAVAIL BIT_ULL(62)
+
+DECLARE_STATIC_KEY_FALSE(rdt_enable_key);
+
+/**
+ * struct mon_evt - Entry in the event list of a resource
+ * @evtid: event id
+ * @name: name of the event
+ */
+struct mon_evt {
+ u32 evtid;
+ char *name;
+ struct list_head list;
+};
+
+/**
+ * struct mon_data_bits - Monitoring details for each event file
+ * @rid: Resource id associated with the event file.
+ * @evtid: Event id associated with the event file
+ * @domid: The domain to which the event file belongs
+ */
+union mon_data_bits {
+ void *priv;
+ struct {
+ unsigned int rid : 10;
+ unsigned int evtid : 8;
+ unsigned int domid : 14;
+ } u;
+};
+
+struct rmid_read {
+ struct rdtgroup *rgrp;
+ struct rdt_domain *d;
+ int evtid;
+ bool first;
+ u64 val;
+};
+
+extern unsigned int intel_cqm_threshold;
+extern bool rdt_alloc_capable;
+extern bool rdt_mon_capable;
+extern unsigned int rdt_mon_features;
+
+enum rdt_group_type {
+ RDTCTRL_GROUP = 0,
+ RDTMON_GROUP,
+ RDT_NUM_GROUP,
+};
+
+/**
+ * struct mongroup - store mon group's data in resctrl fs.
+ * @mon_data_kn kernlfs node for the mon_data directory
+ * @parent: parent rdtgrp
+ * @crdtgrp_list: child rdtgroup node list
+ * @rmid: rmid for this rdtgroup
+ */
+struct mongroup {
+ struct kernfs_node *mon_data_kn;
+ struct rdtgroup *parent;
+ struct list_head crdtgrp_list;
+ u32 rmid;
+};
+
+/**
+ * struct rdtgroup - store rdtgroup's data in resctrl file system.
+ * @kn: kernfs node
+ * @rdtgroup_list: linked list for all rdtgroups
+ * @closid: closid for this rdtgroup
+ * @cpu_mask: CPUs assigned to this rdtgroup
+ * @flags: status bits
+ * @waitcount: how many cpus expect to find this
+ * group when they acquire rdtgroup_mutex
+ * @type: indicates type of this rdtgroup - either
+ * monitor only or ctrl_mon group
+ * @mon: mongroup related data
+ */
+struct rdtgroup {
+ struct kernfs_node *kn;
+ struct list_head rdtgroup_list;
+ u32 closid;
+ struct cpumask cpu_mask;
+ int flags;
+ atomic_t waitcount;
+ enum rdt_group_type type;
+ struct mongroup mon;
+};
+
+/* rdtgroup.flags */
+#define RDT_DELETED 1
+
+/* rftype.flags */
+#define RFTYPE_FLAGS_CPUS_LIST 1
+
+/*
+ * Define the file type flags for base and info directories.
+ */
+#define RFTYPE_INFO BIT(0)
+#define RFTYPE_BASE BIT(1)
+#define RF_CTRLSHIFT 4
+#define RF_MONSHIFT 5
+#define RFTYPE_CTRL BIT(RF_CTRLSHIFT)
+#define RFTYPE_MON BIT(RF_MONSHIFT)
+#define RFTYPE_RES_CACHE BIT(8)
+#define RFTYPE_RES_MB BIT(9)
+#define RF_CTRL_INFO (RFTYPE_INFO | RFTYPE_CTRL)
+#define RF_MON_INFO (RFTYPE_INFO | RFTYPE_MON)
+#define RF_CTRL_BASE (RFTYPE_BASE | RFTYPE_CTRL)
+
+/* List of all resource groups */
+extern struct list_head rdt_all_groups;
+
+extern int max_name_width, max_data_width;
+
+int __init rdtgroup_init(void);
+
+/**
+ * struct rftype - describe each file in the resctrl file system
+ * @name: File name
+ * @mode: Access mode
+ * @kf_ops: File operations
+ * @flags: File specific RFTYPE_FLAGS_* flags
+ * @fflags: File specific RF_* or RFTYPE_* flags
+ * @seq_show: Show content of the file
+ * @write: Write to the file
+ */
+struct rftype {
+ char *name;
+ umode_t mode;
+ struct kernfs_ops *kf_ops;
+ unsigned long flags;
+ unsigned long fflags;
+
+ int (*seq_show)(struct kernfs_open_file *of,
+ struct seq_file *sf, void *v);
+ /*
+ * write() is the generic write callback which maps directly to
+ * kernfs write operation and overrides all other operations.
+ * Maximum write size is determined by ->max_write_len.
+ */
+ ssize_t (*write)(struct kernfs_open_file *of,
+ char *buf, size_t nbytes, loff_t off);
+};
+
+/**
+ * struct mbm_state - status for each MBM counter in each domain
+ * @chunks: Total data moved (multiply by rdt_group.mon_scale to get bytes)
+ * @prev_msr Value of IA32_QM_CTR for this RMID last time we read it
+ */
+struct mbm_state {
+ u64 chunks;
+ u64 prev_msr;
+};
+
+/**
+ * struct rdt_domain - group of cpus sharing an RDT resource
+ * @list: all instances of this resource
+ * @id: unique id for this instance
+ * @cpu_mask: which cpus share this resource
+ * @rmid_busy_llc:
+ * bitmap of which limbo RMIDs are above threshold
+ * @mbm_total: saved state for MBM total bandwidth
+ * @mbm_local: saved state for MBM local bandwidth
+ * @mbm_over: worker to periodically read MBM h/w counters
+ * @cqm_limbo: worker to periodically read CQM h/w counters
+ * @mbm_work_cpu:
+ * worker cpu for MBM h/w counters
+ * @cqm_work_cpu:
+ * worker cpu for CQM h/w counters
+ * @ctrl_val: array of cache or mem ctrl values (indexed by CLOSID)
+ * @new_ctrl: new ctrl value to be loaded
+ * @have_new_ctrl: did user provide new_ctrl for this domain
+ */
+struct rdt_domain {
+ struct list_head list;
+ int id;
+ struct cpumask cpu_mask;
+ unsigned long *rmid_busy_llc;
+ struct mbm_state *mbm_total;
+ struct mbm_state *mbm_local;
+ struct delayed_work mbm_over;
+ struct delayed_work cqm_limbo;
+ int mbm_work_cpu;
+ int cqm_work_cpu;
+ u32 *ctrl_val;
+ u32 new_ctrl;
+ bool have_new_ctrl;
+};
+
+/**
+ * struct msr_param - set a range of MSRs from a domain
+ * @res: The resource to use
+ * @low: Beginning index from base MSR
+ * @high: End index
+ */
+struct msr_param {
+ struct rdt_resource *res;
+ int low;
+ int high;
+};
+
+/**
+ * struct rdt_cache - Cache allocation related data
+ * @cbm_len: Length of the cache bit mask
+ * @min_cbm_bits: Minimum number of consecutive bits to be set
+ * @cbm_idx_mult: Multiplier of CBM index
+ * @cbm_idx_offset: Offset of CBM index. CBM index is computed by:
+ * closid * cbm_idx_multi + cbm_idx_offset
+ * in a cache bit mask
+ * @shareable_bits: Bitmask of shareable resource with other
+ * executing entities
+ */
+struct rdt_cache {
+ unsigned int cbm_len;
+ unsigned int min_cbm_bits;
+ unsigned int cbm_idx_mult;
+ unsigned int cbm_idx_offset;
+ unsigned int shareable_bits;
+};
+
+/**
+ * struct rdt_membw - Memory bandwidth allocation related data
+ * @max_delay: Max throttle delay. Delay is the hardware
+ * representation for memory bandwidth.
+ * @min_bw: Minimum memory bandwidth percentage user can request
+ * @bw_gran: Granularity at which the memory bandwidth is allocated
+ * @delay_linear: True if memory B/W delay is in linear scale
+ * @mb_map: Mapping of memory B/W percentage to memory B/W delay
+ */
+struct rdt_membw {
+ u32 max_delay;
+ u32 min_bw;
+ u32 bw_gran;
+ u32 delay_linear;
+ u32 *mb_map;
+};
+
+static inline bool is_llc_occupancy_enabled(void)
+{
+ return (rdt_mon_features & (1 << QOS_L3_OCCUP_EVENT_ID));
+}
+
+static inline bool is_mbm_total_enabled(void)
+{
+ return (rdt_mon_features & (1 << QOS_L3_MBM_TOTAL_EVENT_ID));
+}
+
+static inline bool is_mbm_local_enabled(void)
+{
+ return (rdt_mon_features & (1 << QOS_L3_MBM_LOCAL_EVENT_ID));
+}
+
+static inline bool is_mbm_enabled(void)
+{
+ return (is_mbm_total_enabled() || is_mbm_local_enabled());
+}
+
+static inline bool is_mbm_event(int e)
+{
+ return (e >= QOS_L3_MBM_TOTAL_EVENT_ID &&
+ e <= QOS_L3_MBM_LOCAL_EVENT_ID);
+}
+
+/**
+ * struct rdt_resource - attributes of an RDT resource
+ * @rid: The index of the resource
+ * @alloc_enabled: Is allocation enabled on this machine
+ * @mon_enabled: Is monitoring enabled for this feature
+ * @alloc_capable: Is allocation available on this machine
+ * @mon_capable: Is monitor feature available on this machine
+ * @name: Name to use in "schemata" file
+ * @num_closid: Number of CLOSIDs available
+ * @cache_level: Which cache level defines scope of this resource
+ * @default_ctrl: Specifies default cache cbm or memory B/W percent.
+ * @msr_base: Base MSR address for CBMs
+ * @msr_update: Function pointer to update QOS MSRs
+ * @data_width: Character width of data when displaying
+ * @domains: All domains for this resource
+ * @cache: Cache allocation related data
+ * @format_str: Per resource format string to show domain value
+ * @parse_ctrlval: Per resource function pointer to parse control values
+ * @evt_list: List of monitoring events
+ * @num_rmid: Number of RMIDs available
+ * @mon_scale: cqm counter * mon_scale = occupancy in bytes
+ * @fflags: flags to choose base and info files
+ */
+struct rdt_resource {
+ int rid;
+ bool alloc_enabled;
+ bool mon_enabled;
+ bool alloc_capable;
+ bool mon_capable;
+ char *name;
+ int num_closid;
+ int cache_level;
+ u32 default_ctrl;
+ unsigned int msr_base;
+ void (*msr_update) (struct rdt_domain *d, struct msr_param *m,
+ struct rdt_resource *r);
+ int data_width;
+ struct list_head domains;
+ struct rdt_cache cache;
+ struct rdt_membw membw;
+ const char *format_str;
+ int (*parse_ctrlval) (char *buf, struct rdt_resource *r,
+ struct rdt_domain *d);
+ struct list_head evt_list;
+ int num_rmid;
+ unsigned int mon_scale;
+ unsigned long fflags;
+};
+
+int parse_cbm(char *buf, struct rdt_resource *r, struct rdt_domain *d);
+int parse_bw(char *buf, struct rdt_resource *r, struct rdt_domain *d);
+
+extern struct mutex rdtgroup_mutex;
+
+extern struct rdt_resource rdt_resources_all[];
+extern struct rdtgroup rdtgroup_default;
+DECLARE_STATIC_KEY_FALSE(rdt_alloc_enable_key);
+
+int __init rdtgroup_init(void);
+
+enum {
+ RDT_RESOURCE_L3,
+ RDT_RESOURCE_L3DATA,
+ RDT_RESOURCE_L3CODE,
+ RDT_RESOURCE_L2,
+ RDT_RESOURCE_MBA,
+
+ /* Must be the last */
+ RDT_NUM_RESOURCES,
+};
+
+#define for_each_capable_rdt_resource(r) \
+ for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\
+ r++) \
+ if (r->alloc_capable || r->mon_capable)
+
+#define for_each_alloc_capable_rdt_resource(r) \
+ for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\
+ r++) \
+ if (r->alloc_capable)
+
+#define for_each_mon_capable_rdt_resource(r) \
+ for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\
+ r++) \
+ if (r->mon_capable)
+
+#define for_each_alloc_enabled_rdt_resource(r) \
+ for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\
+ r++) \
+ if (r->alloc_enabled)
+
+#define for_each_mon_enabled_rdt_resource(r) \
+ for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\
+ r++) \
+ if (r->mon_enabled)
+
+/* CPUID.(EAX=10H, ECX=ResID=1).EAX */
+union cpuid_0x10_1_eax {
+ struct {
+ unsigned int cbm_len:5;
+ } split;
+ unsigned int full;
+};
+
+/* CPUID.(EAX=10H, ECX=ResID=3).EAX */
+union cpuid_0x10_3_eax {
+ struct {
+ unsigned int max_delay:12;
+ } split;
+ unsigned int full;
+};
+
+/* CPUID.(EAX=10H, ECX=ResID).EDX */
+union cpuid_0x10_x_edx {
+ struct {
+ unsigned int cos_max:16;
+ } split;
+ unsigned int full;
+};
+
+void rdt_ctrl_update(void *arg);
+struct rdtgroup *rdtgroup_kn_lock_live(struct kernfs_node *kn);
+void rdtgroup_kn_unlock(struct kernfs_node *kn);
+struct rdt_domain *rdt_find_domain(struct rdt_resource *r, int id,
+ struct list_head **pos);
+ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of,
+ char *buf, size_t nbytes, loff_t off);
+int rdtgroup_schemata_show(struct kernfs_open_file *of,
+ struct seq_file *s, void *v);
+struct rdt_domain *get_domain_from_cpu(int cpu, struct rdt_resource *r);
+int alloc_rmid(void);
+void free_rmid(u32 rmid);
+int rdt_get_mon_l3_config(struct rdt_resource *r);
+void mon_event_count(void *info);
+int rdtgroup_mondata_show(struct seq_file *m, void *arg);
+void rmdir_mondata_subdir_allrdtgrp(struct rdt_resource *r,
+ unsigned int dom_id);
+void mkdir_mondata_subdir_allrdtgrp(struct rdt_resource *r,
+ struct rdt_domain *d);
+void mon_event_read(struct rmid_read *rr, struct rdt_domain *d,
+ struct rdtgroup *rdtgrp, int evtid, int first);
+void mbm_setup_overflow_handler(struct rdt_domain *dom,
+ unsigned long delay_ms);
+void mbm_handle_overflow(struct work_struct *work);
+void cqm_setup_limbo_handler(struct rdt_domain *dom, unsigned long delay_ms);
+void cqm_handle_limbo(struct work_struct *work);
+bool has_busy_rmid(struct rdt_resource *r, struct rdt_domain *d);
+void __check_limbo(struct rdt_domain *d, bool force_free);
+
+#endif /* _ASM_X86_INTEL_RDT_H */
diff --git a/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c b/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c
new file mode 100644
index 000000000000..f6ea94f8954a
--- /dev/null
+++ b/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c
@@ -0,0 +1,341 @@
+/*
+ * Resource Director Technology(RDT)
+ * - Cache Allocation code.
+ *
+ * Copyright (C) 2016 Intel Corporation
+ *
+ * Authors:
+ * Fenghua Yu <fenghua.yu@intel.com>
+ * Tony Luck <tony.luck@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * More information about RDT be found in the Intel (R) x86 Architecture
+ * Software Developer Manual June 2016, volume 3, section 17.17.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernfs.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+#include "intel_rdt.h"
+
+/*
+ * Check whether MBA bandwidth percentage value is correct. The value is
+ * checked against the minimum and max bandwidth values specified by the
+ * hardware. The allocated bandwidth percentage is rounded to the next
+ * control step available on the hardware.
+ */
+static bool bw_validate(char *buf, unsigned long *data, struct rdt_resource *r)
+{
+ unsigned long bw;
+ int ret;
+
+ /*
+ * Only linear delay values is supported for current Intel SKUs.
+ */
+ if (!r->membw.delay_linear)
+ return false;
+
+ ret = kstrtoul(buf, 10, &bw);
+ if (ret)
+ return false;
+
+ if (bw < r->membw.min_bw || bw > r->default_ctrl)
+ return false;
+
+ *data = roundup(bw, (unsigned long)r->membw.bw_gran);
+ return true;
+}
+
+int parse_bw(char *buf, struct rdt_resource *r, struct rdt_domain *d)
+{
+ unsigned long data;
+
+ if (d->have_new_ctrl)
+ return -EINVAL;
+
+ if (!bw_validate(buf, &data, r))
+ return -EINVAL;
+ d->new_ctrl = data;
+ d->have_new_ctrl = true;
+
+ return 0;
+}
+
+/*
+ * Check whether a cache bit mask is valid. The SDM says:
+ * Please note that all (and only) contiguous '1' combinations
+ * are allowed (e.g. FFFFH, 0FF0H, 003CH, etc.).
+ * Additionally Haswell requires at least two bits set.
+ */
+static bool cbm_validate(char *buf, unsigned long *data, struct rdt_resource *r)
+{
+ unsigned long first_bit, zero_bit, val;
+ unsigned int cbm_len = r->cache.cbm_len;
+ int ret;
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return false;
+
+ if (val == 0 || val > r->default_ctrl)
+ return false;
+
+ first_bit = find_first_bit(&val, cbm_len);
+ zero_bit = find_next_zero_bit(&val, cbm_len, first_bit);
+
+ if (find_next_bit(&val, cbm_len, zero_bit) < cbm_len)
+ return false;
+
+ if ((zero_bit - first_bit) < r->cache.min_cbm_bits)
+ return false;
+
+ *data = val;
+ return true;
+}
+
+/*
+ * Read one cache bit mask (hex). Check that it is valid for the current
+ * resource type.
+ */
+int parse_cbm(char *buf, struct rdt_resource *r, struct rdt_domain *d)
+{
+ unsigned long data;
+
+ if (d->have_new_ctrl)
+ return -EINVAL;
+
+ if(!cbm_validate(buf, &data, r))
+ return -EINVAL;
+ d->new_ctrl = data;
+ d->have_new_ctrl = true;
+
+ return 0;
+}
+
+/*
+ * For each domain in this resource we expect to find a series of:
+ * id=mask
+ * separated by ";". The "id" is in decimal, and must match one of
+ * the "id"s for this resource.
+ */
+static int parse_line(char *line, struct rdt_resource *r)
+{
+ char *dom = NULL, *id;
+ struct rdt_domain *d;
+ unsigned long dom_id;
+
+next:
+ if (!line || line[0] == '\0')
+ return 0;
+ dom = strsep(&line, ";");
+ id = strsep(&dom, "=");
+ if (!dom || kstrtoul(id, 10, &dom_id))
+ return -EINVAL;
+ dom = strim(dom);
+ list_for_each_entry(d, &r->domains, list) {
+ if (d->id == dom_id) {
+ if (r->parse_ctrlval(dom, r, d))
+ return -EINVAL;
+ goto next;
+ }
+ }
+ return -EINVAL;
+}
+
+static int update_domains(struct rdt_resource *r, int closid)
+{
+ struct msr_param msr_param;
+ cpumask_var_t cpu_mask;
+ struct rdt_domain *d;
+ int cpu;
+
+ if (!zalloc_cpumask_var(&cpu_mask, GFP_KERNEL))
+ return -ENOMEM;
+
+ msr_param.low = closid;
+ msr_param.high = msr_param.low + 1;
+ msr_param.res = r;
+
+ list_for_each_entry(d, &r->domains, list) {
+ if (d->have_new_ctrl && d->new_ctrl != d->ctrl_val[closid]) {
+ cpumask_set_cpu(cpumask_any(&d->cpu_mask), cpu_mask);
+ d->ctrl_val[closid] = d->new_ctrl;
+ }
+ }
+ if (cpumask_empty(cpu_mask))
+ goto done;
+ cpu = get_cpu();
+ /* Update CBM on this cpu if it's in cpu_mask. */
+ if (cpumask_test_cpu(cpu, cpu_mask))
+ rdt_ctrl_update(&msr_param);
+ /* Update CBM on other cpus. */
+ smp_call_function_many(cpu_mask, rdt_ctrl_update, &msr_param, 1);
+ put_cpu();
+
+done:
+ free_cpumask_var(cpu_mask);
+
+ return 0;
+}
+
+static int rdtgroup_parse_resource(char *resname, char *tok, int closid)
+{
+ struct rdt_resource *r;
+
+ for_each_alloc_enabled_rdt_resource(r) {
+ if (!strcmp(resname, r->name) && closid < r->num_closid)
+ return parse_line(tok, r);
+ }
+ return -EINVAL;
+}
+
+ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of,
+ char *buf, size_t nbytes, loff_t off)
+{
+ struct rdtgroup *rdtgrp;
+ struct rdt_domain *dom;
+ struct rdt_resource *r;
+ char *tok, *resname;
+ int closid, ret = 0;
+
+ /* Valid input requires a trailing newline */
+ if (nbytes == 0 || buf[nbytes - 1] != '\n')
+ return -EINVAL;
+ buf[nbytes - 1] = '\0';
+
+ rdtgrp = rdtgroup_kn_lock_live(of->kn);
+ if (!rdtgrp) {
+ rdtgroup_kn_unlock(of->kn);
+ return -ENOENT;
+ }
+
+ closid = rdtgrp->closid;
+
+ for_each_alloc_enabled_rdt_resource(r) {
+ list_for_each_entry(dom, &r->domains, list)
+ dom->have_new_ctrl = false;
+ }
+
+ while ((tok = strsep(&buf, "\n")) != NULL) {
+ resname = strim(strsep(&tok, ":"));
+ if (!tok) {
+ ret = -EINVAL;
+ goto out;
+ }
+ ret = rdtgroup_parse_resource(resname, tok, closid);
+ if (ret)
+ goto out;
+ }
+
+ for_each_alloc_enabled_rdt_resource(r) {
+ ret = update_domains(r, closid);
+ if (ret)
+ goto out;
+ }
+
+out:
+ rdtgroup_kn_unlock(of->kn);
+ return ret ?: nbytes;
+}
+
+static void show_doms(struct seq_file *s, struct rdt_resource *r, int closid)
+{
+ struct rdt_domain *dom;
+ bool sep = false;
+
+ seq_printf(s, "%*s:", max_name_width, r->name);
+ list_for_each_entry(dom, &r->domains, list) {
+ if (sep)
+ seq_puts(s, ";");
+ seq_printf(s, r->format_str, dom->id, max_data_width,
+ dom->ctrl_val[closid]);
+ sep = true;
+ }
+ seq_puts(s, "\n");
+}
+
+int rdtgroup_schemata_show(struct kernfs_open_file *of,
+ struct seq_file *s, void *v)
+{
+ struct rdtgroup *rdtgrp;
+ struct rdt_resource *r;
+ int ret = 0;
+ u32 closid;
+
+ rdtgrp = rdtgroup_kn_lock_live(of->kn);
+ if (rdtgrp) {
+ closid = rdtgrp->closid;
+ for_each_alloc_enabled_rdt_resource(r) {
+ if (closid < r->num_closid)
+ show_doms(s, r, closid);
+ }
+ } else {
+ ret = -ENOENT;
+ }
+ rdtgroup_kn_unlock(of->kn);
+ return ret;
+}
+
+void mon_event_read(struct rmid_read *rr, struct rdt_domain *d,
+ struct rdtgroup *rdtgrp, int evtid, int first)
+{
+ /*
+ * setup the parameters to send to the IPI to read the data.
+ */
+ rr->rgrp = rdtgrp;
+ rr->evtid = evtid;
+ rr->d = d;
+ rr->val = 0;
+ rr->first = first;
+
+ smp_call_function_any(&d->cpu_mask, mon_event_count, rr, 1);
+}
+
+int rdtgroup_mondata_show(struct seq_file *m, void *arg)
+{
+ struct kernfs_open_file *of = m->private;
+ u32 resid, evtid, domid;
+ struct rdtgroup *rdtgrp;
+ struct rdt_resource *r;
+ union mon_data_bits md;
+ struct rdt_domain *d;
+ struct rmid_read rr;
+ int ret = 0;
+
+ rdtgrp = rdtgroup_kn_lock_live(of->kn);
+
+ md.priv = of->kn->priv;
+ resid = md.u.rid;
+ domid = md.u.domid;
+ evtid = md.u.evtid;
+
+ r = &rdt_resources_all[resid];
+ d = rdt_find_domain(r, domid, NULL);
+ if (!d) {
+ ret = -ENOENT;
+ goto out;
+ }
+
+ mon_event_read(&rr, d, rdtgrp, evtid, false);
+
+ if (rr.val & RMID_VAL_ERROR)
+ seq_puts(m, "Error\n");
+ else if (rr.val & RMID_VAL_UNAVAIL)
+ seq_puts(m, "Unavailable\n");
+ else
+ seq_printf(m, "%llu\n", rr.val * r->mon_scale);
+
+out:
+ rdtgroup_kn_unlock(of->kn);
+ return ret;
+}
diff --git a/arch/x86/kernel/cpu/intel_rdt_monitor.c b/arch/x86/kernel/cpu/intel_rdt_monitor.c
new file mode 100644
index 000000000000..30827510094b
--- /dev/null
+++ b/arch/x86/kernel/cpu/intel_rdt_monitor.c
@@ -0,0 +1,499 @@
+/*
+ * Resource Director Technology(RDT)
+ * - Monitoring code
+ *
+ * Copyright (C) 2017 Intel Corporation
+ *
+ * Author:
+ * Vikas Shivappa <vikas.shivappa@intel.com>
+ *
+ * This replaces the cqm.c based on perf but we reuse a lot of
+ * code and datastructures originally from Peter Zijlstra and Matt Fleming.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * More information about RDT be found in the Intel (R) x86 Architecture
+ * Software Developer Manual June 2016, volume 3, section 17.17.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <asm/cpu_device_id.h>
+#include "intel_rdt.h"
+
+#define MSR_IA32_QM_CTR 0x0c8e
+#define MSR_IA32_QM_EVTSEL 0x0c8d
+
+struct rmid_entry {
+ u32 rmid;
+ int busy;
+ struct list_head list;
+};
+
+/**
+ * @rmid_free_lru A least recently used list of free RMIDs
+ * These RMIDs are guaranteed to have an occupancy less than the
+ * threshold occupancy
+ */
+static LIST_HEAD(rmid_free_lru);
+
+/**
+ * @rmid_limbo_count count of currently unused but (potentially)
+ * dirty RMIDs.
+ * This counts RMIDs that no one is currently using but that
+ * may have a occupancy value > intel_cqm_threshold. User can change
+ * the threshold occupancy value.
+ */
+unsigned int rmid_limbo_count;
+
+/**
+ * @rmid_entry - The entry in the limbo and free lists.
+ */
+static struct rmid_entry *rmid_ptrs;
+
+/*
+ * Global boolean for rdt_monitor which is true if any
+ * resource monitoring is enabled.
+ */
+bool rdt_mon_capable;
+
+/*
+ * Global to indicate which monitoring events are enabled.
+ */
+unsigned int rdt_mon_features;
+
+/*
+ * This is the threshold cache occupancy at which we will consider an
+ * RMID available for re-allocation.
+ */
+unsigned int intel_cqm_threshold;
+
+static inline struct rmid_entry *__rmid_entry(u32 rmid)
+{
+ struct rmid_entry *entry;
+
+ entry = &rmid_ptrs[rmid];
+ WARN_ON(entry->rmid != rmid);
+
+ return entry;
+}
+
+static u64 __rmid_read(u32 rmid, u32 eventid)
+{
+ u64 val;
+
+ /*
+ * As per the SDM, when IA32_QM_EVTSEL.EvtID (bits 7:0) is configured
+ * with a valid event code for supported resource type and the bits
+ * IA32_QM_EVTSEL.RMID (bits 41:32) are configured with valid RMID,
+ * IA32_QM_CTR.data (bits 61:0) reports the monitored data.
+ * IA32_QM_CTR.Error (bit 63) and IA32_QM_CTR.Unavailable (bit 62)
+ * are error bits.
+ */
+ wrmsr(MSR_IA32_QM_EVTSEL, eventid, rmid);
+ rdmsrl(MSR_IA32_QM_CTR, val);
+
+ return val;
+}
+
+static bool rmid_dirty(struct rmid_entry *entry)
+{
+ u64 val = __rmid_read(entry->rmid, QOS_L3_OCCUP_EVENT_ID);
+
+ return val >= intel_cqm_threshold;
+}
+
+/*
+ * Check the RMIDs that are marked as busy for this domain. If the
+ * reported LLC occupancy is below the threshold clear the busy bit and
+ * decrement the count. If the busy count gets to zero on an RMID, we
+ * free the RMID
+ */
+void __check_limbo(struct rdt_domain *d, bool force_free)
+{
+ struct rmid_entry *entry;
+ struct rdt_resource *r;
+ u32 crmid = 1, nrmid;
+
+ r = &rdt_resources_all[RDT_RESOURCE_L3];
+
+ /*
+ * Skip RMID 0 and start from RMID 1 and check all the RMIDs that
+ * are marked as busy for occupancy < threshold. If the occupancy
+ * is less than the threshold decrement the busy counter of the
+ * RMID and move it to the free list when the counter reaches 0.
+ */
+ for (;;) {
+ nrmid = find_next_bit(d->rmid_busy_llc, r->num_rmid, crmid);
+ if (nrmid >= r->num_rmid)
+ break;
+
+ entry = __rmid_entry(nrmid);
+ if (force_free || !rmid_dirty(entry)) {
+ clear_bit(entry->rmid, d->rmid_busy_llc);
+ if (!--entry->busy) {
+ rmid_limbo_count--;
+ list_add_tail(&entry->list, &rmid_free_lru);
+ }
+ }
+ crmid = nrmid + 1;
+ }
+}
+
+bool has_busy_rmid(struct rdt_resource *r, struct rdt_domain *d)
+{
+ return find_first_bit(d->rmid_busy_llc, r->num_rmid) != r->num_rmid;
+}
+
+/*
+ * As of now the RMIDs allocation is global.
+ * However we keep track of which packages the RMIDs
+ * are used to optimize the limbo list management.
+ */
+int alloc_rmid(void)
+{
+ struct rmid_entry *entry;
+
+ lockdep_assert_held(&rdtgroup_mutex);
+
+ if (list_empty(&rmid_free_lru))
+ return rmid_limbo_count ? -EBUSY : -ENOSPC;
+
+ entry = list_first_entry(&rmid_free_lru,
+ struct rmid_entry, list);
+ list_del(&entry->list);
+
+ return entry->rmid;
+}
+
+static void add_rmid_to_limbo(struct rmid_entry *entry)
+{
+ struct rdt_resource *r;
+ struct rdt_domain *d;
+ int cpu;
+ u64 val;
+
+ r = &rdt_resources_all[RDT_RESOURCE_L3];
+
+ entry->busy = 0;
+ cpu = get_cpu();
+ list_for_each_entry(d, &r->domains, list) {
+ if (cpumask_test_cpu(cpu, &d->cpu_mask)) {
+ val = __rmid_read(entry->rmid, QOS_L3_OCCUP_EVENT_ID);
+ if (val <= intel_cqm_threshold)
+ continue;
+ }
+
+ /*
+ * For the first limbo RMID in the domain,
+ * setup up the limbo worker.
+ */
+ if (!has_busy_rmid(r, d))
+ cqm_setup_limbo_handler(d, CQM_LIMBOCHECK_INTERVAL);
+ set_bit(entry->rmid, d->rmid_busy_llc);
+ entry->busy++;
+ }
+ put_cpu();
+
+ if (entry->busy)
+ rmid_limbo_count++;
+ else
+ list_add_tail(&entry->list, &rmid_free_lru);
+}
+
+void free_rmid(u32 rmid)
+{
+ struct rmid_entry *entry;
+
+ if (!rmid)
+ return;
+
+ lockdep_assert_held(&rdtgroup_mutex);
+
+ entry = __rmid_entry(rmid);
+
+ if (is_llc_occupancy_enabled())
+ add_rmid_to_limbo(entry);
+ else
+ list_add_tail(&entry->list, &rmid_free_lru);
+}
+
+static int __mon_event_count(u32 rmid, struct rmid_read *rr)
+{
+ u64 chunks, shift, tval;
+ struct mbm_state *m;
+
+ tval = __rmid_read(rmid, rr->evtid);
+ if (tval & (RMID_VAL_ERROR | RMID_VAL_UNAVAIL)) {
+ rr->val = tval;
+ return -EINVAL;
+ }
+ switch (rr->evtid) {
+ case QOS_L3_OCCUP_EVENT_ID:
+ rr->val += tval;
+ return 0;
+ case QOS_L3_MBM_TOTAL_EVENT_ID:
+ m = &rr->d->mbm_total[rmid];
+ break;
+ case QOS_L3_MBM_LOCAL_EVENT_ID:
+ m = &rr->d->mbm_local[rmid];
+ break;
+ default:
+ /*
+ * Code would never reach here because
+ * an invalid event id would fail the __rmid_read.
+ */
+ return -EINVAL;
+ }
+
+ if (rr->first) {
+ m->prev_msr = tval;
+ m->chunks = 0;
+ return 0;
+ }
+
+ shift = 64 - MBM_CNTR_WIDTH;
+ chunks = (tval << shift) - (m->prev_msr << shift);
+ chunks >>= shift;
+ m->chunks += chunks;
+ m->prev_msr = tval;
+
+ rr->val += m->chunks;
+ return 0;
+}
+
+/*
+ * This is called via IPI to read the CQM/MBM counters
+ * on a domain.
+ */
+void mon_event_count(void *info)
+{
+ struct rdtgroup *rdtgrp, *entry;
+ struct rmid_read *rr = info;
+ struct list_head *head;
+
+ rdtgrp = rr->rgrp;
+
+ if (__mon_event_count(rdtgrp->mon.rmid, rr))
+ return;
+
+ /*
+ * For Ctrl groups read data from child monitor groups.
+ */
+ head = &rdtgrp->mon.crdtgrp_list;
+
+ if (rdtgrp->type == RDTCTRL_GROUP) {
+ list_for_each_entry(entry, head, mon.crdtgrp_list) {
+ if (__mon_event_count(entry->mon.rmid, rr))
+ return;
+ }
+ }
+}
+
+static void mbm_update(struct rdt_domain *d, int rmid)
+{
+ struct rmid_read rr;
+
+ rr.first = false;
+ rr.d = d;
+
+ /*
+ * This is protected from concurrent reads from user
+ * as both the user and we hold the global mutex.
+ */
+ if (is_mbm_total_enabled()) {
+ rr.evtid = QOS_L3_MBM_TOTAL_EVENT_ID;
+ __mon_event_count(rmid, &rr);
+ }
+ if (is_mbm_local_enabled()) {
+ rr.evtid = QOS_L3_MBM_LOCAL_EVENT_ID;
+ __mon_event_count(rmid, &rr);
+ }
+}
+
+/*
+ * Handler to scan the limbo list and move the RMIDs
+ * to free list whose occupancy < threshold_occupancy.
+ */
+void cqm_handle_limbo(struct work_struct *work)
+{
+ unsigned long delay = msecs_to_jiffies(CQM_LIMBOCHECK_INTERVAL);
+ int cpu = smp_processor_id();
+ struct rdt_resource *r;
+ struct rdt_domain *d;
+
+ mutex_lock(&rdtgroup_mutex);
+
+ r = &rdt_resources_all[RDT_RESOURCE_L3];
+ d = get_domain_from_cpu(cpu, r);
+
+ if (!d) {
+ pr_warn_once("Failure to get domain for limbo worker\n");
+ goto out_unlock;
+ }
+
+ __check_limbo(d, false);
+
+ if (has_busy_rmid(r, d))
+ schedule_delayed_work_on(cpu, &d->cqm_limbo, delay);
+
+out_unlock:
+ mutex_unlock(&rdtgroup_mutex);
+}
+
+void cqm_setup_limbo_handler(struct rdt_domain *dom, unsigned long delay_ms)
+{
+ unsigned long delay = msecs_to_jiffies(delay_ms);
+ struct rdt_resource *r;
+ int cpu;
+
+ r = &rdt_resources_all[RDT_RESOURCE_L3];
+
+ cpu = cpumask_any(&dom->cpu_mask);
+ dom->cqm_work_cpu = cpu;
+
+ schedule_delayed_work_on(cpu, &dom->cqm_limbo, delay);
+}
+
+void mbm_handle_overflow(struct work_struct *work)
+{
+ unsigned long delay = msecs_to_jiffies(MBM_OVERFLOW_INTERVAL);
+ struct rdtgroup *prgrp, *crgrp;
+ int cpu = smp_processor_id();
+ struct list_head *head;
+ struct rdt_domain *d;
+
+ mutex_lock(&rdtgroup_mutex);
+
+ if (!static_branch_likely(&rdt_enable_key))
+ goto out_unlock;
+
+ d = get_domain_from_cpu(cpu, &rdt_resources_all[RDT_RESOURCE_L3]);
+ if (!d)
+ goto out_unlock;
+
+ list_for_each_entry(prgrp, &rdt_all_groups, rdtgroup_list) {
+ mbm_update(d, prgrp->mon.rmid);
+
+ head = &prgrp->mon.crdtgrp_list;
+ list_for_each_entry(crgrp, head, mon.crdtgrp_list)
+ mbm_update(d, crgrp->mon.rmid);
+ }
+
+ schedule_delayed_work_on(cpu, &d->mbm_over, delay);
+
+out_unlock:
+ mutex_unlock(&rdtgroup_mutex);
+}
+
+void mbm_setup_overflow_handler(struct rdt_domain *dom, unsigned long delay_ms)
+{
+ unsigned long delay = msecs_to_jiffies(delay_ms);
+ int cpu;
+
+ if (!static_branch_likely(&rdt_enable_key))
+ return;
+ cpu = cpumask_any(&dom->cpu_mask);
+ dom->mbm_work_cpu = cpu;
+ schedule_delayed_work_on(cpu, &dom->mbm_over, delay);
+}
+
+static int dom_data_init(struct rdt_resource *r)
+{
+ struct rmid_entry *entry = NULL;
+ int i, nr_rmids;
+
+ nr_rmids = r->num_rmid;
+ rmid_ptrs = kcalloc(nr_rmids, sizeof(struct rmid_entry), GFP_KERNEL);
+ if (!rmid_ptrs)
+ return -ENOMEM;
+
+ for (i = 0; i < nr_rmids; i++) {
+ entry = &rmid_ptrs[i];
+ INIT_LIST_HEAD(&entry->list);
+
+ entry->rmid = i;
+ list_add_tail(&entry->list, &rmid_free_lru);
+ }
+
+ /*
+ * RMID 0 is special and is always allocated. It's used for all
+ * tasks that are not monitored.
+ */
+ entry = __rmid_entry(0);
+ list_del(&entry->list);
+
+ return 0;
+}
+
+static struct mon_evt llc_occupancy_event = {
+ .name = "llc_occupancy",
+ .evtid = QOS_L3_OCCUP_EVENT_ID,
+};
+
+static struct mon_evt mbm_total_event = {
+ .name = "mbm_total_bytes",
+ .evtid = QOS_L3_MBM_TOTAL_EVENT_ID,
+};
+
+static struct mon_evt mbm_local_event = {
+ .name = "mbm_local_bytes",
+ .evtid = QOS_L3_MBM_LOCAL_EVENT_ID,
+};
+
+/*
+ * Initialize the event list for the resource.
+ *
+ * Note that MBM events are also part of RDT_RESOURCE_L3 resource
+ * because as per the SDM the total and local memory bandwidth
+ * are enumerated as part of L3 monitoring.
+ */
+static void l3_mon_evt_init(struct rdt_resource *r)
+{
+ INIT_LIST_HEAD(&r->evt_list);
+
+ if (is_llc_occupancy_enabled())
+ list_add_tail(&llc_occupancy_event.list, &r->evt_list);
+ if (is_mbm_total_enabled())
+ list_add_tail(&mbm_total_event.list, &r->evt_list);
+ if (is_mbm_local_enabled())
+ list_add_tail(&mbm_local_event.list, &r->evt_list);
+}
+
+int rdt_get_mon_l3_config(struct rdt_resource *r)
+{
+ int ret;
+
+ r->mon_scale = boot_cpu_data.x86_cache_occ_scale;
+ r->num_rmid = boot_cpu_data.x86_cache_max_rmid + 1;
+
+ /*
+ * A reasonable upper limit on the max threshold is the number
+ * of lines tagged per RMID if all RMIDs have the same number of
+ * lines tagged in the LLC.
+ *
+ * For a 35MB LLC and 56 RMIDs, this is ~1.8% of the LLC.
+ */
+ intel_cqm_threshold = boot_cpu_data.x86_cache_size * 1024 / r->num_rmid;
+
+ /* h/w works in units of "boot_cpu_data.x86_cache_occ_scale" */
+ intel_cqm_threshold /= r->mon_scale;
+
+ ret = dom_data_init(r);
+ if (ret)
+ return ret;
+
+ l3_mon_evt_init(r);
+
+ r->mon_capable = true;
+ r->mon_enabled = true;
+
+ return 0;
+}
diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index 9257bd9dc664..a869d4a073c5 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -32,17 +32,25 @@
#include <uapi/linux/magic.h>
-#include <asm/intel_rdt.h>
-#include <asm/intel_rdt_common.h>
+#include <asm/intel_rdt_sched.h>
+#include "intel_rdt.h"
DEFINE_STATIC_KEY_FALSE(rdt_enable_key);
-struct kernfs_root *rdt_root;
+DEFINE_STATIC_KEY_FALSE(rdt_mon_enable_key);
+DEFINE_STATIC_KEY_FALSE(rdt_alloc_enable_key);
+static struct kernfs_root *rdt_root;
struct rdtgroup rdtgroup_default;
LIST_HEAD(rdt_all_groups);
/* Kernel fs node for "info" directory under root */
static struct kernfs_node *kn_info;
+/* Kernel fs node for "mon_groups" directory under root */
+static struct kernfs_node *kn_mongrp;
+
+/* Kernel fs node for "mon_data" directory under root */
+static struct kernfs_node *kn_mondata;
+
/*
* Trivial allocator for CLOSIDs. Since h/w only supports a small number,
* we can keep a bitmap of free CLOSIDs in a single integer.
@@ -66,7 +74,7 @@ static void closid_init(void)
int rdt_min_closid = 32;
/* Compute rdt_min_closid across all resources */
- for_each_enabled_rdt_resource(r)
+ for_each_alloc_enabled_rdt_resource(r)
rdt_min_closid = min(rdt_min_closid, r->num_closid);
closid_free_map = BIT_MASK(rdt_min_closid) - 1;
@@ -75,9 +83,9 @@ static void closid_init(void)
closid_free_map &= ~1;
}
-int closid_alloc(void)
+static int closid_alloc(void)
{
- int closid = ffs(closid_free_map);
+ u32 closid = ffs(closid_free_map);
if (closid == 0)
return -ENOSPC;
@@ -125,28 +133,6 @@ static int rdtgroup_add_file(struct kernfs_node *parent_kn, struct rftype *rft)
return 0;
}
-static int rdtgroup_add_files(struct kernfs_node *kn, struct rftype *rfts,
- int len)
-{
- struct rftype *rft;
- int ret;
-
- lockdep_assert_held(&rdtgroup_mutex);
-
- for (rft = rfts; rft < rfts + len; rft++) {
- ret = rdtgroup_add_file(kn, rft);
- if (ret)
- goto error;
- }
-
- return 0;
-error:
- pr_warn("Failed to add %s, err=%d\n", rft->name, ret);
- while (--rft >= rfts)
- kernfs_remove_by_name(kn, rft->name);
- return ret;
-}
-
static int rdtgroup_seqfile_show(struct seq_file *m, void *arg)
{
struct kernfs_open_file *of = m->private;
@@ -174,6 +160,11 @@ static struct kernfs_ops rdtgroup_kf_single_ops = {
.seq_show = rdtgroup_seqfile_show,
};
+static struct kernfs_ops kf_mondata_ops = {
+ .atomic_write_len = PAGE_SIZE,
+ .seq_show = rdtgroup_mondata_show,
+};
+
static bool is_cpu_list(struct kernfs_open_file *of)
{
struct rftype *rft = of->kn->priv;
@@ -203,13 +194,18 @@ static int rdtgroup_cpus_show(struct kernfs_open_file *of,
/*
* This is safe against intel_rdt_sched_in() called from __switch_to()
* because __switch_to() is executed with interrupts disabled. A local call
- * from rdt_update_closid() is proteced against __switch_to() because
+ * from update_closid_rmid() is proteced against __switch_to() because
* preemption is disabled.
*/
-static void rdt_update_cpu_closid(void *closid)
+static void update_cpu_closid_rmid(void *info)
{
- if (closid)
- this_cpu_write(cpu_closid, *(int *)closid);
+ struct rdtgroup *r = info;
+
+ if (r) {
+ this_cpu_write(pqr_state.default_closid, r->closid);
+ this_cpu_write(pqr_state.default_rmid, r->mon.rmid);
+ }
+
/*
* We cannot unconditionally write the MSR because the current
* executing task might have its own closid selected. Just reuse
@@ -221,28 +217,128 @@ static void rdt_update_cpu_closid(void *closid)
/*
* Update the PGR_ASSOC MSR on all cpus in @cpu_mask,
*
- * Per task closids must have been set up before calling this function.
- *
- * The per cpu closids are updated with the smp function call, when @closid
- * is not NULL. If @closid is NULL then all affected percpu closids must
- * have been set up before calling this function.
+ * Per task closids/rmids must have been set up before calling this function.
*/
static void
-rdt_update_closid(const struct cpumask *cpu_mask, int *closid)
+update_closid_rmid(const struct cpumask *cpu_mask, struct rdtgroup *r)
{
int cpu = get_cpu();
if (cpumask_test_cpu(cpu, cpu_mask))
- rdt_update_cpu_closid(closid);
- smp_call_function_many(cpu_mask, rdt_update_cpu_closid, closid, 1);
+ update_cpu_closid_rmid(r);
+ smp_call_function_many(cpu_mask, update_cpu_closid_rmid, r, 1);
put_cpu();
}
+static int cpus_mon_write(struct rdtgroup *rdtgrp, cpumask_var_t newmask,
+ cpumask_var_t tmpmask)
+{
+ struct rdtgroup *prgrp = rdtgrp->mon.parent, *crgrp;
+ struct list_head *head;
+
+ /* Check whether cpus belong to parent ctrl group */
+ cpumask_andnot(tmpmask, newmask, &prgrp->cpu_mask);
+ if (cpumask_weight(tmpmask))
+ return -EINVAL;
+
+ /* Check whether cpus are dropped from this group */
+ cpumask_andnot(tmpmask, &rdtgrp->cpu_mask, newmask);
+ if (cpumask_weight(tmpmask)) {
+ /* Give any dropped cpus to parent rdtgroup */
+ cpumask_or(&prgrp->cpu_mask, &prgrp->cpu_mask, tmpmask);
+ update_closid_rmid(tmpmask, prgrp);
+ }
+
+ /*
+ * If we added cpus, remove them from previous group that owned them
+ * and update per-cpu rmid
+ */
+ cpumask_andnot(tmpmask, newmask, &rdtgrp->cpu_mask);
+ if (cpumask_weight(tmpmask)) {
+ head = &prgrp->mon.crdtgrp_list;
+ list_for_each_entry(crgrp, head, mon.crdtgrp_list) {
+ if (crgrp == rdtgrp)
+ continue;
+ cpumask_andnot(&crgrp->cpu_mask, &crgrp->cpu_mask,
+ tmpmask);
+ }
+ update_closid_rmid(tmpmask, rdtgrp);
+ }
+
+ /* Done pushing/pulling - update this group with new mask */
+ cpumask_copy(&rdtgrp->cpu_mask, newmask);
+
+ return 0;
+}
+
+static void cpumask_rdtgrp_clear(struct rdtgroup *r, struct cpumask *m)
+{
+ struct rdtgroup *crgrp;
+
+ cpumask_andnot(&r->cpu_mask, &r->cpu_mask, m);
+ /* update the child mon group masks as well*/
+ list_for_each_entry(crgrp, &r->mon.crdtgrp_list, mon.crdtgrp_list)
+ cpumask_and(&crgrp->cpu_mask, &r->cpu_mask, &crgrp->cpu_mask);
+}
+
+static int cpus_ctrl_write(struct rdtgroup *rdtgrp, cpumask_var_t newmask,
+ cpumask_var_t tmpmask, cpumask_var_t tmpmask1)
+{
+ struct rdtgroup *r, *crgrp;
+ struct list_head *head;
+
+ /* Check whether cpus are dropped from this group */
+ cpumask_andnot(tmpmask, &rdtgrp->cpu_mask, newmask);
+ if (cpumask_weight(tmpmask)) {
+ /* Can't drop from default group */
+ if (rdtgrp == &rdtgroup_default)
+ return -EINVAL;
+
+ /* Give any dropped cpus to rdtgroup_default */
+ cpumask_or(&rdtgroup_default.cpu_mask,
+ &rdtgroup_default.cpu_mask, tmpmask);
+ update_closid_rmid(tmpmask, &rdtgroup_default);
+ }
+
+ /*
+ * If we added cpus, remove them from previous group and
+ * the prev group's child groups that owned them
+ * and update per-cpu closid/rmid.
+ */
+ cpumask_andnot(tmpmask, newmask, &rdtgrp->cpu_mask);
+ if (cpumask_weight(tmpmask)) {
+ list_for_each_entry(r, &rdt_all_groups, rdtgroup_list) {
+ if (r == rdtgrp)
+ continue;
+ cpumask_and(tmpmask1, &r->cpu_mask, tmpmask);
+ if (cpumask_weight(tmpmask1))
+ cpumask_rdtgrp_clear(r, tmpmask1);
+ }
+ update_closid_rmid(tmpmask, rdtgrp);
+ }
+
+ /* Done pushing/pulling - update this group with new mask */
+ cpumask_copy(&rdtgrp->cpu_mask, newmask);
+
+ /*
+ * Clear child mon group masks since there is a new parent mask
+ * now and update the rmid for the cpus the child lost.
+ */
+ head = &rdtgrp->mon.crdtgrp_list;
+ list_for_each_entry(crgrp, head, mon.crdtgrp_list) {
+ cpumask_and(tmpmask, &rdtgrp->cpu_mask, &crgrp->cpu_mask);
+ update_closid_rmid(tmpmask, rdtgrp);
+ cpumask_clear(&crgrp->cpu_mask);
+ }
+
+ return 0;
+}
+
static ssize_t rdtgroup_cpus_write(struct kernfs_open_file *of,
char *buf, size_t nbytes, loff_t off)
{
- cpumask_var_t tmpmask, newmask;
- struct rdtgroup *rdtgrp, *r;
+ cpumask_var_t tmpmask, newmask, tmpmask1;
+ struct rdtgroup *rdtgrp;
int ret;
if (!buf)
@@ -254,6 +350,11 @@ static ssize_t rdtgroup_cpus_write(struct kernfs_open_file *of,
free_cpumask_var(tmpmask);
return -ENOMEM;
}
+ if (!zalloc_cpumask_var(&tmpmask1, GFP_KERNEL)) {
+ free_cpumask_var(tmpmask);
+ free_cpumask_var(newmask);
+ return -ENOMEM;
+ }
rdtgrp = rdtgroup_kn_lock_live(of->kn);
if (!rdtgrp) {
@@ -276,41 +377,18 @@ static ssize_t rdtgroup_cpus_write(struct kernfs_open_file *of,
goto unlock;
}
- /* Check whether cpus are dropped from this group */
- cpumask_andnot(tmpmask, &rdtgrp->cpu_mask, newmask);
- if (cpumask_weight(tmpmask)) {
- /* Can't drop from default group */
- if (rdtgrp == &rdtgroup_default) {
- ret = -EINVAL;
- goto unlock;
- }
- /* Give any dropped cpus to rdtgroup_default */
- cpumask_or(&rdtgroup_default.cpu_mask,
- &rdtgroup_default.cpu_mask, tmpmask);
- rdt_update_closid(tmpmask, &rdtgroup_default.closid);
- }
-
- /*
- * If we added cpus, remove them from previous group that owned them
- * and update per-cpu closid
- */
- cpumask_andnot(tmpmask, newmask, &rdtgrp->cpu_mask);
- if (cpumask_weight(tmpmask)) {
- list_for_each_entry(r, &rdt_all_groups, rdtgroup_list) {
- if (r == rdtgrp)
- continue;
- cpumask_andnot(&r->cpu_mask, &r->cpu_mask, tmpmask);
- }
- rdt_update_closid(tmpmask, &rdtgrp->closid);
- }
-
- /* Done pushing/pulling - update this group with new mask */
- cpumask_copy(&rdtgrp->cpu_mask, newmask);
+ if (rdtgrp->type == RDTCTRL_GROUP)
+ ret = cpus_ctrl_write(rdtgrp, newmask, tmpmask, tmpmask1);
+ else if (rdtgrp->type == RDTMON_GROUP)
+ ret = cpus_mon_write(rdtgrp, newmask, tmpmask);
+ else
+ ret = -EINVAL;
unlock:
rdtgroup_kn_unlock(of->kn);
free_cpumask_var(tmpmask);
free_cpumask_var(newmask);
+ free_cpumask_var(tmpmask1);
return ret ?: nbytes;
}
@@ -336,6 +414,7 @@ static void move_myself(struct callback_head *head)
if (atomic_dec_and_test(&rdtgrp->waitcount) &&
(rdtgrp->flags & RDT_DELETED)) {
current->closid = 0;
+ current->rmid = 0;
kfree(rdtgrp);
}
@@ -374,7 +453,20 @@ static int __rdtgroup_move_task(struct task_struct *tsk,
atomic_dec(&rdtgrp->waitcount);
kfree(callback);
} else {
- tsk->closid = rdtgrp->closid;
+ /*
+ * For ctrl_mon groups move both closid and rmid.
+ * For monitor groups, can move the tasks only from
+ * their parent CTRL group.
+ */
+ if (rdtgrp->type == RDTCTRL_GROUP) {
+ tsk->closid = rdtgrp->closid;
+ tsk->rmid = rdtgrp->mon.rmid;
+ } else if (rdtgrp->type == RDTMON_GROUP) {
+ if (rdtgrp->mon.parent->closid == tsk->closid)
+ tsk->rmid = rdtgrp->mon.rmid;
+ else
+ ret = -EINVAL;
+ }
}
return ret;
}
@@ -454,7 +546,8 @@ static void show_rdt_tasks(struct rdtgroup *r, struct seq_file *s)
rcu_read_lock();
for_each_process_thread(p, t) {
- if (t->closid == r->closid)
+ if ((r->type == RDTCTRL_GROUP && t->closid == r->closid) ||
+ (r->type == RDTMON_GROUP && t->rmid == r->mon.rmid))
seq_printf(s, "%d\n", t->pid);
}
rcu_read_unlock();
@@ -476,39 +569,6 @@ static int rdtgroup_tasks_show(struct kernfs_open_file *of,
return ret;
}
-/* Files in each rdtgroup */
-static struct rftype rdtgroup_base_files[] = {
- {
- .name = "cpus",
- .mode = 0644,
- .kf_ops = &rdtgroup_kf_single_ops,
- .write = rdtgroup_cpus_write,
- .seq_show = rdtgroup_cpus_show,
- },
- {
- .name = "cpus_list",
- .mode = 0644,
- .kf_ops = &rdtgroup_kf_single_ops,
- .write = rdtgroup_cpus_write,
- .seq_show = rdtgroup_cpus_show,
- .flags = RFTYPE_FLAGS_CPUS_LIST,
- },
- {
- .name = "tasks",
- .mode = 0644,
- .kf_ops = &rdtgroup_kf_single_ops,
- .write = rdtgroup_tasks_write,
- .seq_show = rdtgroup_tasks_show,
- },
- {
- .name = "schemata",
- .mode = 0644,
- .kf_ops = &rdtgroup_kf_single_ops,
- .write = rdtgroup_schemata_write,
- .seq_show = rdtgroup_schemata_show,
- },
-};
-
static int rdt_num_closids_show(struct kernfs_open_file *of,
struct seq_file *seq, void *v)
{
@@ -536,6 +596,15 @@ static int rdt_min_cbm_bits_show(struct kernfs_open_file *of,
return 0;
}
+static int rdt_shareable_bits_show(struct kernfs_open_file *of,
+ struct seq_file *seq, void *v)
+{
+ struct rdt_resource *r = of->kn->parent->priv;
+
+ seq_printf(seq, "%x\n", r->cache.shareable_bits);
+ return 0;
+}
+
static int rdt_min_bw_show(struct kernfs_open_file *of,
struct seq_file *seq, void *v)
{
@@ -545,6 +614,28 @@ static int rdt_min_bw_show(struct kernfs_open_file *of,
return 0;
}
+static int rdt_num_rmids_show(struct kernfs_open_file *of,
+ struct seq_file *seq, void *v)
+{
+ struct rdt_resource *r = of->kn->parent->priv;
+
+ seq_printf(seq, "%d\n", r->num_rmid);
+
+ return 0;
+}
+
+static int rdt_mon_features_show(struct kernfs_open_file *of,
+ struct seq_file *seq, void *v)
+{
+ struct rdt_resource *r = of->kn->parent->priv;
+ struct mon_evt *mevt;
+
+ list_for_each_entry(mevt, &r->evt_list, list)
+ seq_printf(seq, "%s\n", mevt->name);
+
+ return 0;
+}
+
static int rdt_bw_gran_show(struct kernfs_open_file *of,
struct seq_file *seq, void *v)
{
@@ -563,74 +654,200 @@ static int rdt_delay_linear_show(struct kernfs_open_file *of,
return 0;
}
+static int max_threshold_occ_show(struct kernfs_open_file *of,
+ struct seq_file *seq, void *v)
+{
+ struct rdt_resource *r = of->kn->parent->priv;
+
+ seq_printf(seq, "%u\n", intel_cqm_threshold * r->mon_scale);
+
+ return 0;
+}
+
+static ssize_t max_threshold_occ_write(struct kernfs_open_file *of,
+ char *buf, size_t nbytes, loff_t off)
+{
+ struct rdt_resource *r = of->kn->parent->priv;
+ unsigned int bytes;
+ int ret;
+
+ ret = kstrtouint(buf, 0, &bytes);
+ if (ret)
+ return ret;
+
+ if (bytes > (boot_cpu_data.x86_cache_size * 1024))
+ return -EINVAL;
+
+ intel_cqm_threshold = bytes / r->mon_scale;
+
+ return nbytes;
+}
+
/* rdtgroup information files for one cache resource. */
-static struct rftype res_cache_info_files[] = {
+static struct rftype res_common_files[] = {
{
.name = "num_closids",
.mode = 0444,
.kf_ops = &rdtgroup_kf_single_ops,
.seq_show = rdt_num_closids_show,
+ .fflags = RF_CTRL_INFO,
+ },
+ {
+ .name = "mon_features",
+ .mode = 0444,
+ .kf_ops = &rdtgroup_kf_single_ops,
+ .seq_show = rdt_mon_features_show,
+ .fflags = RF_MON_INFO,
+ },
+ {
+ .name = "num_rmids",
+ .mode = 0444,
+ .kf_ops = &rdtgroup_kf_single_ops,
+ .seq_show = rdt_num_rmids_show,
+ .fflags = RF_MON_INFO,
},
{
.name = "cbm_mask",
.mode = 0444,
.kf_ops = &rdtgroup_kf_single_ops,
.seq_show = rdt_default_ctrl_show,
+ .fflags = RF_CTRL_INFO | RFTYPE_RES_CACHE,
},
{
.name = "min_cbm_bits",
.mode = 0444,
.kf_ops = &rdtgroup_kf_single_ops,
.seq_show = rdt_min_cbm_bits_show,
+ .fflags = RF_CTRL_INFO | RFTYPE_RES_CACHE,
},
-};
-
-/* rdtgroup information files for memory bandwidth. */
-static struct rftype res_mba_info_files[] = {
{
- .name = "num_closids",
+ .name = "shareable_bits",
.mode = 0444,
.kf_ops = &rdtgroup_kf_single_ops,
- .seq_show = rdt_num_closids_show,
+ .seq_show = rdt_shareable_bits_show,
+ .fflags = RF_CTRL_INFO | RFTYPE_RES_CACHE,
},
{
.name = "min_bandwidth",
.mode = 0444,
.kf_ops = &rdtgroup_kf_single_ops,
.seq_show = rdt_min_bw_show,
+ .fflags = RF_CTRL_INFO | RFTYPE_RES_MB,
},
{
.name = "bandwidth_gran",
.mode = 0444,
.kf_ops = &rdtgroup_kf_single_ops,
.seq_show = rdt_bw_gran_show,
+ .fflags = RF_CTRL_INFO | RFTYPE_RES_MB,
},
{
.name = "delay_linear",
.mode = 0444,
.kf_ops = &rdtgroup_kf_single_ops,
.seq_show = rdt_delay_linear_show,
+ .fflags = RF_CTRL_INFO | RFTYPE_RES_MB,
+ },
+ {
+ .name = "max_threshold_occupancy",
+ .mode = 0644,
+ .kf_ops = &rdtgroup_kf_single_ops,
+ .write = max_threshold_occ_write,
+ .seq_show = max_threshold_occ_show,
+ .fflags = RF_MON_INFO | RFTYPE_RES_CACHE,
+ },
+ {
+ .name = "cpus",
+ .mode = 0644,
+ .kf_ops = &rdtgroup_kf_single_ops,
+ .write = rdtgroup_cpus_write,
+ .seq_show = rdtgroup_cpus_show,
+ .fflags = RFTYPE_BASE,
+ },
+ {
+ .name = "cpus_list",
+ .mode = 0644,
+ .kf_ops = &rdtgroup_kf_single_ops,
+ .write = rdtgroup_cpus_write,
+ .seq_show = rdtgroup_cpus_show,
+ .flags = RFTYPE_FLAGS_CPUS_LIST,
+ .fflags = RFTYPE_BASE,
+ },
+ {
+ .name = "tasks",
+ .mode = 0644,
+ .kf_ops = &rdtgroup_kf_single_ops,
+ .write = rdtgroup_tasks_write,
+ .seq_show = rdtgroup_tasks_show,
+ .fflags = RFTYPE_BASE,
+ },
+ {
+ .name = "schemata",
+ .mode = 0644,
+ .kf_ops = &rdtgroup_kf_single_ops,
+ .write = rdtgroup_schemata_write,
+ .seq_show = rdtgroup_schemata_show,
+ .fflags = RF_CTRL_BASE,
},
};
-void rdt_get_mba_infofile(struct rdt_resource *r)
+static int rdtgroup_add_files(struct kernfs_node *kn, unsigned long fflags)
{
- r->info_files = res_mba_info_files;
- r->nr_info_files = ARRAY_SIZE(res_mba_info_files);
+ struct rftype *rfts, *rft;
+ int ret, len;
+
+ rfts = res_common_files;
+ len = ARRAY_SIZE(res_common_files);
+
+ lockdep_assert_held(&rdtgroup_mutex);
+
+ for (rft = rfts; rft < rfts + len; rft++) {
+ if ((fflags & rft->fflags) == rft->fflags) {
+ ret = rdtgroup_add_file(kn, rft);
+ if (ret)
+ goto error;
+ }
+ }
+
+ return 0;
+error:
+ pr_warn("Failed to add %s, err=%d\n", rft->name, ret);
+ while (--rft >= rfts) {
+ if ((fflags & rft->fflags) == rft->fflags)
+ kernfs_remove_by_name(kn, rft->name);
+ }
+ return ret;
}
-void rdt_get_cache_infofile(struct rdt_resource *r)
+static int rdtgroup_mkdir_info_resdir(struct rdt_resource *r, char *name,
+ unsigned long fflags)
{
- r->info_files = res_cache_info_files;
- r->nr_info_files = ARRAY_SIZE(res_cache_info_files);
+ struct kernfs_node *kn_subdir;
+ int ret;
+
+ kn_subdir = kernfs_create_dir(kn_info, name,
+ kn_info->mode, r);
+ if (IS_ERR(kn_subdir))
+ return PTR_ERR(kn_subdir);
+
+ kernfs_get(kn_subdir);
+ ret = rdtgroup_kn_set_ugid(kn_subdir);
+ if (ret)
+ return ret;
+
+ ret = rdtgroup_add_files(kn_subdir, fflags);
+ if (!ret)
+ kernfs_activate(kn_subdir);
+
+ return ret;
}
static int rdtgroup_create_info_dir(struct kernfs_node *parent_kn)
{
- struct kernfs_node *kn_subdir;
- struct rftype *res_info_files;
struct rdt_resource *r;
- int ret, len;
+ unsigned long fflags;
+ char name[32];
+ int ret;
/* create the directory */
kn_info = kernfs_create_dir(parent_kn, "info", parent_kn->mode, NULL);
@@ -638,25 +855,19 @@ static int rdtgroup_create_info_dir(struct kernfs_node *parent_kn)
return PTR_ERR(kn_info);
kernfs_get(kn_info);
- for_each_enabled_rdt_resource(r) {
- kn_subdir = kernfs_create_dir(kn_info, r->name,
- kn_info->mode, r);
- if (IS_ERR(kn_subdir)) {
- ret = PTR_ERR(kn_subdir);
- goto out_destroy;
- }
- kernfs_get(kn_subdir);
- ret = rdtgroup_kn_set_ugid(kn_subdir);
+ for_each_alloc_enabled_rdt_resource(r) {
+ fflags = r->fflags | RF_CTRL_INFO;
+ ret = rdtgroup_mkdir_info_resdir(r, r->name, fflags);
if (ret)
goto out_destroy;
+ }
- res_info_files = r->info_files;
- len = r->nr_info_files;
-
- ret = rdtgroup_add_files(kn_subdir, res_info_files, len);
+ for_each_mon_enabled_rdt_resource(r) {
+ fflags = r->fflags | RF_MON_INFO;
+ sprintf(name, "%s_MON", r->name);
+ ret = rdtgroup_mkdir_info_resdir(r, name, fflags);
if (ret)
goto out_destroy;
- kernfs_activate(kn_subdir);
}
/*
@@ -678,6 +889,39 @@ out_destroy:
return ret;
}
+static int
+mongroup_create_dir(struct kernfs_node *parent_kn, struct rdtgroup *prgrp,
+ char *name, struct kernfs_node **dest_kn)
+{
+ struct kernfs_node *kn;
+ int ret;
+
+ /* create the directory */
+ kn = kernfs_create_dir(parent_kn, name, parent_kn->mode, prgrp);
+ if (IS_ERR(kn))
+ return PTR_ERR(kn);
+
+ if (dest_kn)
+ *dest_kn = kn;
+
+ /*
+ * This extra ref will be put in kernfs_remove() and guarantees
+ * that @rdtgrp->kn is always accessible.
+ */
+ kernfs_get(kn);
+
+ ret = rdtgroup_kn_set_ugid(kn);
+ if (ret)
+ goto out_destroy;
+
+ kernfs_activate(kn);
+
+ return 0;
+
+out_destroy:
+ kernfs_remove(kn);
+ return ret;
+}
static void l3_qos_cfg_update(void *arg)
{
bool *enable = arg;
@@ -718,14 +962,15 @@ static int cdp_enable(void)
struct rdt_resource *r_l3 = &rdt_resources_all[RDT_RESOURCE_L3];
int ret;
- if (!r_l3->capable || !r_l3data->capable || !r_l3code->capable)
+ if (!r_l3->alloc_capable || !r_l3data->alloc_capable ||
+ !r_l3code->alloc_capable)
return -EINVAL;
ret = set_l3_qos_cfg(r_l3, true);
if (!ret) {
- r_l3->enabled = false;
- r_l3data->enabled = true;
- r_l3code->enabled = true;
+ r_l3->alloc_enabled = false;
+ r_l3data->alloc_enabled = true;
+ r_l3code->alloc_enabled = true;
}
return ret;
}
@@ -734,11 +979,11 @@ static void cdp_disable(void)
{
struct rdt_resource *r = &rdt_resources_all[RDT_RESOURCE_L3];
- r->enabled = r->capable;
+ r->alloc_enabled = r->alloc_capable;
- if (rdt_resources_all[RDT_RESOURCE_L3DATA].enabled) {
- rdt_resources_all[RDT_RESOURCE_L3DATA].enabled = false;
- rdt_resources_all[RDT_RESOURCE_L3CODE].enabled = false;
+ if (rdt_resources_all[RDT_RESOURCE_L3DATA].alloc_enabled) {
+ rdt_resources_all[RDT_RESOURCE_L3DATA].alloc_enabled = false;
+ rdt_resources_all[RDT_RESOURCE_L3CODE].alloc_enabled = false;
set_l3_qos_cfg(r, false);
}
}
@@ -823,10 +1068,16 @@ void rdtgroup_kn_unlock(struct kernfs_node *kn)
}
}
+static int mkdir_mondata_all(struct kernfs_node *parent_kn,
+ struct rdtgroup *prgrp,
+ struct kernfs_node **mon_data_kn);
+
static struct dentry *rdt_mount(struct file_system_type *fs_type,
int flags, const char *unused_dev_name,
void *data)
{
+ struct rdt_domain *dom;
+ struct rdt_resource *r;
struct dentry *dentry;
int ret;
@@ -853,15 +1104,54 @@ static struct dentry *rdt_mount(struct file_system_type *fs_type,
goto out_cdp;
}
+ if (rdt_mon_capable) {
+ ret = mongroup_create_dir(rdtgroup_default.kn,
+ NULL, "mon_groups",
+ &kn_mongrp);
+ if (ret) {
+ dentry = ERR_PTR(ret);
+ goto out_info;
+ }
+ kernfs_get(kn_mongrp);
+
+ ret = mkdir_mondata_all(rdtgroup_default.kn,
+ &rdtgroup_default, &kn_mondata);
+ if (ret) {
+ dentry = ERR_PTR(ret);
+ goto out_mongrp;
+ }
+ kernfs_get(kn_mondata);
+ rdtgroup_default.mon.mon_data_kn = kn_mondata;
+ }
+
dentry = kernfs_mount(fs_type, flags, rdt_root,
RDTGROUP_SUPER_MAGIC, NULL);
if (IS_ERR(dentry))
- goto out_destroy;
+ goto out_mondata;
+
+ if (rdt_alloc_capable)
+ static_branch_enable(&rdt_alloc_enable_key);
+ if (rdt_mon_capable)
+ static_branch_enable(&rdt_mon_enable_key);
+
+ if (rdt_alloc_capable || rdt_mon_capable)
+ static_branch_enable(&rdt_enable_key);
+
+ if (is_mbm_enabled()) {
+ r = &rdt_resources_all[RDT_RESOURCE_L3];
+ list_for_each_entry(dom, &r->domains, list)
+ mbm_setup_overflow_handler(dom, MBM_OVERFLOW_INTERVAL);
+ }
- static_branch_enable(&rdt_enable_key);
goto out;
-out_destroy:
+out_mondata:
+ if (rdt_mon_capable)
+ kernfs_remove(kn_mondata);
+out_mongrp:
+ if (rdt_mon_capable)
+ kernfs_remove(kn_mongrp);
+out_info:
kernfs_remove(kn_info);
out_cdp:
cdp_disable();
@@ -909,6 +1199,18 @@ static int reset_all_ctrls(struct rdt_resource *r)
return 0;
}
+static bool is_closid_match(struct task_struct *t, struct rdtgroup *r)
+{
+ return (rdt_alloc_capable &&
+ (r->type == RDTCTRL_GROUP) && (t->closid == r->closid));
+}
+
+static bool is_rmid_match(struct task_struct *t, struct rdtgroup *r)
+{
+ return (rdt_mon_capable &&
+ (r->type == RDTMON_GROUP) && (t->rmid == r->mon.rmid));
+}
+
/*
* Move tasks from one to the other group. If @from is NULL, then all tasks
* in the systems are moved unconditionally (used for teardown).
@@ -924,8 +1226,11 @@ static void rdt_move_group_tasks(struct rdtgroup *from, struct rdtgroup *to,
read_lock(&tasklist_lock);
for_each_process_thread(p, t) {
- if (!from || t->closid == from->closid) {
+ if (!from || is_closid_match(t, from) ||
+ is_rmid_match(t, from)) {
t->closid = to->closid;
+ t->rmid = to->mon.rmid;
+
#ifdef CONFIG_SMP
/*
* This is safe on x86 w/o barriers as the ordering
@@ -944,6 +1249,19 @@ static void rdt_move_group_tasks(struct rdtgroup *from, struct rdtgroup *to,
read_unlock(&tasklist_lock);
}
+static void free_all_child_rdtgrp(struct rdtgroup *rdtgrp)
+{
+ struct rdtgroup *sentry, *stmp;
+ struct list_head *head;
+
+ head = &rdtgrp->mon.crdtgrp_list;
+ list_for_each_entry_safe(sentry, stmp, head, mon.crdtgrp_list) {
+ free_rmid(sentry->mon.rmid);
+ list_del(&sentry->mon.crdtgrp_list);
+ kfree(sentry);
+ }
+}
+
/*
* Forcibly remove all of subdirectories under root.
*/
@@ -955,6 +1273,9 @@ static void rmdir_all_sub(void)
rdt_move_group_tasks(NULL, &rdtgroup_default, NULL);
list_for_each_entry_safe(rdtgrp, tmp, &rdt_all_groups, rdtgroup_list) {
+ /* Free any child rmids */
+ free_all_child_rdtgrp(rdtgrp);
+
/* Remove each rdtgroup other than root */
if (rdtgrp == &rdtgroup_default)
continue;
@@ -967,16 +1288,20 @@ static void rmdir_all_sub(void)
cpumask_or(&rdtgroup_default.cpu_mask,
&rdtgroup_default.cpu_mask, &rdtgrp->cpu_mask);
+ free_rmid(rdtgrp->mon.rmid);
+
kernfs_remove(rdtgrp->kn);
list_del(&rdtgrp->rdtgroup_list);
kfree(rdtgrp);
}
/* Notify online CPUs to update per cpu storage and PQR_ASSOC MSR */
get_online_cpus();
- rdt_update_closid(cpu_online_mask, &rdtgroup_default.closid);
+ update_closid_rmid(cpu_online_mask, &rdtgroup_default);
put_online_cpus();
kernfs_remove(kn_info);
+ kernfs_remove(kn_mongrp);
+ kernfs_remove(kn_mondata);
}
static void rdt_kill_sb(struct super_block *sb)
@@ -986,10 +1311,12 @@ static void rdt_kill_sb(struct super_block *sb)
mutex_lock(&rdtgroup_mutex);
/*Put everything back to default values. */
- for_each_enabled_rdt_resource(r)
+ for_each_alloc_enabled_rdt_resource(r)
reset_all_ctrls(r);
cdp_disable();
rmdir_all_sub();
+ static_branch_disable(&rdt_alloc_enable_key);
+ static_branch_disable(&rdt_mon_enable_key);
static_branch_disable(&rdt_enable_key);
kernfs_kill_sb(sb);
mutex_unlock(&rdtgroup_mutex);
@@ -1001,46 +1328,223 @@ static struct file_system_type rdt_fs_type = {
.kill_sb = rdt_kill_sb,
};
-static int rdtgroup_mkdir(struct kernfs_node *parent_kn, const char *name,
- umode_t mode)
+static int mon_addfile(struct kernfs_node *parent_kn, const char *name,
+ void *priv)
{
- struct rdtgroup *parent, *rdtgrp;
struct kernfs_node *kn;
- int ret, closid;
+ int ret = 0;
- /* Only allow mkdir in the root directory */
- if (parent_kn != rdtgroup_default.kn)
- return -EPERM;
+ kn = __kernfs_create_file(parent_kn, name, 0444, 0,
+ &kf_mondata_ops, priv, NULL, NULL);
+ if (IS_ERR(kn))
+ return PTR_ERR(kn);
- /* Do not accept '\n' to avoid unparsable situation. */
- if (strchr(name, '\n'))
- return -EINVAL;
+ ret = rdtgroup_kn_set_ugid(kn);
+ if (ret) {
+ kernfs_remove(kn);
+ return ret;
+ }
- parent = rdtgroup_kn_lock_live(parent_kn);
- if (!parent) {
- ret = -ENODEV;
- goto out_unlock;
+ return ret;
+}
+
+/*
+ * Remove all subdirectories of mon_data of ctrl_mon groups
+ * and monitor groups with given domain id.
+ */
+void rmdir_mondata_subdir_allrdtgrp(struct rdt_resource *r, unsigned int dom_id)
+{
+ struct rdtgroup *prgrp, *crgrp;
+ char name[32];
+
+ if (!r->mon_enabled)
+ return;
+
+ list_for_each_entry(prgrp, &rdt_all_groups, rdtgroup_list) {
+ sprintf(name, "mon_%s_%02d", r->name, dom_id);
+ kernfs_remove_by_name(prgrp->mon.mon_data_kn, name);
+
+ list_for_each_entry(crgrp, &prgrp->mon.crdtgrp_list, mon.crdtgrp_list)
+ kernfs_remove_by_name(crgrp->mon.mon_data_kn, name);
}
+}
- ret = closid_alloc();
- if (ret < 0)
+static int mkdir_mondata_subdir(struct kernfs_node *parent_kn,
+ struct rdt_domain *d,
+ struct rdt_resource *r, struct rdtgroup *prgrp)
+{
+ union mon_data_bits priv;
+ struct kernfs_node *kn;
+ struct mon_evt *mevt;
+ struct rmid_read rr;
+ char name[32];
+ int ret;
+
+ sprintf(name, "mon_%s_%02d", r->name, d->id);
+ /* create the directory */
+ kn = kernfs_create_dir(parent_kn, name, parent_kn->mode, prgrp);
+ if (IS_ERR(kn))
+ return PTR_ERR(kn);
+
+ /*
+ * This extra ref will be put in kernfs_remove() and guarantees
+ * that kn is always accessible.
+ */
+ kernfs_get(kn);
+ ret = rdtgroup_kn_set_ugid(kn);
+ if (ret)
+ goto out_destroy;
+
+ if (WARN_ON(list_empty(&r->evt_list))) {
+ ret = -EPERM;
+ goto out_destroy;
+ }
+
+ priv.u.rid = r->rid;
+ priv.u.domid = d->id;
+ list_for_each_entry(mevt, &r->evt_list, list) {
+ priv.u.evtid = mevt->evtid;
+ ret = mon_addfile(kn, mevt->name, priv.priv);
+ if (ret)
+ goto out_destroy;
+
+ if (is_mbm_event(mevt->evtid))
+ mon_event_read(&rr, d, prgrp, mevt->evtid, true);
+ }
+ kernfs_activate(kn);
+ return 0;
+
+out_destroy:
+ kernfs_remove(kn);
+ return ret;
+}
+
+/*
+ * Add all subdirectories of mon_data for "ctrl_mon" groups
+ * and "monitor" groups with given domain id.
+ */
+void mkdir_mondata_subdir_allrdtgrp(struct rdt_resource *r,
+ struct rdt_domain *d)
+{
+ struct kernfs_node *parent_kn;
+ struct rdtgroup *prgrp, *crgrp;
+ struct list_head *head;
+
+ if (!r->mon_enabled)
+ return;
+
+ list_for_each_entry(prgrp, &rdt_all_groups, rdtgroup_list) {
+ parent_kn = prgrp->mon.mon_data_kn;
+ mkdir_mondata_subdir(parent_kn, d, r, prgrp);
+
+ head = &prgrp->mon.crdtgrp_list;
+ list_for_each_entry(crgrp, head, mon.crdtgrp_list) {
+ parent_kn = crgrp->mon.mon_data_kn;
+ mkdir_mondata_subdir(parent_kn, d, r, crgrp);
+ }
+ }
+}
+
+static int mkdir_mondata_subdir_alldom(struct kernfs_node *parent_kn,
+ struct rdt_resource *r,
+ struct rdtgroup *prgrp)
+{
+ struct rdt_domain *dom;
+ int ret;
+
+ list_for_each_entry(dom, &r->domains, list) {
+ ret = mkdir_mondata_subdir(parent_kn, dom, r, prgrp);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+/*
+ * This creates a directory mon_data which contains the monitored data.
+ *
+ * mon_data has one directory for each domain whic are named
+ * in the format mon_<domain_name>_<domain_id>. For ex: A mon_data
+ * with L3 domain looks as below:
+ * ./mon_data:
+ * mon_L3_00
+ * mon_L3_01
+ * mon_L3_02
+ * ...
+ *
+ * Each domain directory has one file per event:
+ * ./mon_L3_00/:
+ * llc_occupancy
+ *
+ */
+static int mkdir_mondata_all(struct kernfs_node *parent_kn,
+ struct rdtgroup *prgrp,
+ struct kernfs_node **dest_kn)
+{
+ struct rdt_resource *r;
+ struct kernfs_node *kn;
+ int ret;
+
+ /*
+ * Create the mon_data directory first.
+ */
+ ret = mongroup_create_dir(parent_kn, NULL, "mon_data", &kn);
+ if (ret)
+ return ret;
+
+ if (dest_kn)
+ *dest_kn = kn;
+
+ /*
+ * Create the subdirectories for each domain. Note that all events
+ * in a domain like L3 are grouped into a resource whose domain is L3
+ */
+ for_each_mon_enabled_rdt_resource(r) {
+ ret = mkdir_mondata_subdir_alldom(kn, r, prgrp);
+ if (ret)
+ goto out_destroy;
+ }
+
+ return 0;
+
+out_destroy:
+ kernfs_remove(kn);
+ return ret;
+}
+
+static int mkdir_rdt_prepare(struct kernfs_node *parent_kn,
+ struct kernfs_node *prgrp_kn,
+ const char *name, umode_t mode,
+ enum rdt_group_type rtype, struct rdtgroup **r)
+{
+ struct rdtgroup *prdtgrp, *rdtgrp;
+ struct kernfs_node *kn;
+ uint files = 0;
+ int ret;
+
+ prdtgrp = rdtgroup_kn_lock_live(prgrp_kn);
+ if (!prdtgrp) {
+ ret = -ENODEV;
goto out_unlock;
- closid = ret;
+ }
/* allocate the rdtgroup. */
rdtgrp = kzalloc(sizeof(*rdtgrp), GFP_KERNEL);
if (!rdtgrp) {
ret = -ENOSPC;
- goto out_closid_free;
+ goto out_unlock;
}
- rdtgrp->closid = closid;
- list_add(&rdtgrp->rdtgroup_list, &rdt_all_groups);
+ *r = rdtgrp;
+ rdtgrp->mon.parent = prdtgrp;
+ rdtgrp->type = rtype;
+ INIT_LIST_HEAD(&rdtgrp->mon.crdtgrp_list);
/* kernfs creates the directory for rdtgrp */
- kn = kernfs_create_dir(parent->kn, name, mode, rdtgrp);
+ kn = kernfs_create_dir(parent_kn, name, mode, rdtgrp);
if (IS_ERR(kn)) {
ret = PTR_ERR(kn);
- goto out_cancel_ref;
+ goto out_free_rgrp;
}
rdtgrp->kn = kn;
@@ -1056,43 +1560,211 @@ static int rdtgroup_mkdir(struct kernfs_node *parent_kn, const char *name,
if (ret)
goto out_destroy;
- ret = rdtgroup_add_files(kn, rdtgroup_base_files,
- ARRAY_SIZE(rdtgroup_base_files));
+ files = RFTYPE_BASE | RFTYPE_CTRL;
+ files = RFTYPE_BASE | BIT(RF_CTRLSHIFT + rtype);
+ ret = rdtgroup_add_files(kn, files);
if (ret)
goto out_destroy;
+ if (rdt_mon_capable) {
+ ret = alloc_rmid();
+ if (ret < 0)
+ goto out_destroy;
+ rdtgrp->mon.rmid = ret;
+
+ ret = mkdir_mondata_all(kn, rdtgrp, &rdtgrp->mon.mon_data_kn);
+ if (ret)
+ goto out_idfree;
+ }
kernfs_activate(kn);
- ret = 0;
- goto out_unlock;
+ /*
+ * The caller unlocks the prgrp_kn upon success.
+ */
+ return 0;
+out_idfree:
+ free_rmid(rdtgrp->mon.rmid);
out_destroy:
kernfs_remove(rdtgrp->kn);
-out_cancel_ref:
- list_del(&rdtgrp->rdtgroup_list);
+out_free_rgrp:
kfree(rdtgrp);
-out_closid_free:
- closid_free(closid);
out_unlock:
- rdtgroup_kn_unlock(parent_kn);
+ rdtgroup_kn_unlock(prgrp_kn);
return ret;
}
-static int rdtgroup_rmdir(struct kernfs_node *kn)
+static void mkdir_rdt_prepare_clean(struct rdtgroup *rgrp)
+{
+ kernfs_remove(rgrp->kn);
+ free_rmid(rgrp->mon.rmid);
+ kfree(rgrp);
+}
+
+/*
+ * Create a monitor group under "mon_groups" directory of a control
+ * and monitor group(ctrl_mon). This is a resource group
+ * to monitor a subset of tasks and cpus in its parent ctrl_mon group.
+ */
+static int rdtgroup_mkdir_mon(struct kernfs_node *parent_kn,
+ struct kernfs_node *prgrp_kn,
+ const char *name,
+ umode_t mode)
+{
+ struct rdtgroup *rdtgrp, *prgrp;
+ int ret;
+
+ ret = mkdir_rdt_prepare(parent_kn, prgrp_kn, name, mode, RDTMON_GROUP,
+ &rdtgrp);
+ if (ret)
+ return ret;
+
+ prgrp = rdtgrp->mon.parent;
+ rdtgrp->closid = prgrp->closid;
+
+ /*
+ * Add the rdtgrp to the list of rdtgrps the parent
+ * ctrl_mon group has to track.
+ */
+ list_add_tail(&rdtgrp->mon.crdtgrp_list, &prgrp->mon.crdtgrp_list);
+
+ rdtgroup_kn_unlock(prgrp_kn);
+ return ret;
+}
+
+/*
+ * These are rdtgroups created under the root directory. Can be used
+ * to allocate and monitor resources.
+ */
+static int rdtgroup_mkdir_ctrl_mon(struct kernfs_node *parent_kn,
+ struct kernfs_node *prgrp_kn,
+ const char *name, umode_t mode)
{
- int ret, cpu, closid = rdtgroup_default.closid;
struct rdtgroup *rdtgrp;
- cpumask_var_t tmpmask;
+ struct kernfs_node *kn;
+ u32 closid;
+ int ret;
- if (!zalloc_cpumask_var(&tmpmask, GFP_KERNEL))
- return -ENOMEM;
+ ret = mkdir_rdt_prepare(parent_kn, prgrp_kn, name, mode, RDTCTRL_GROUP,
+ &rdtgrp);
+ if (ret)
+ return ret;
- rdtgrp = rdtgroup_kn_lock_live(kn);
- if (!rdtgrp) {
- ret = -EPERM;
- goto out;
+ kn = rdtgrp->kn;
+ ret = closid_alloc();
+ if (ret < 0)
+ goto out_common_fail;
+ closid = ret;
+
+ rdtgrp->closid = closid;
+ list_add(&rdtgrp->rdtgroup_list, &rdt_all_groups);
+
+ if (rdt_mon_capable) {
+ /*
+ * Create an empty mon_groups directory to hold the subset
+ * of tasks and cpus to monitor.
+ */
+ ret = mongroup_create_dir(kn, NULL, "mon_groups", NULL);
+ if (ret)
+ goto out_id_free;
}
+ goto out_unlock;
+
+out_id_free:
+ closid_free(closid);
+ list_del(&rdtgrp->rdtgroup_list);
+out_common_fail:
+ mkdir_rdt_prepare_clean(rdtgrp);
+out_unlock:
+ rdtgroup_kn_unlock(prgrp_kn);
+ return ret;
+}
+
+/*
+ * We allow creating mon groups only with in a directory called "mon_groups"
+ * which is present in every ctrl_mon group. Check if this is a valid
+ * "mon_groups" directory.
+ *
+ * 1. The directory should be named "mon_groups".
+ * 2. The mon group itself should "not" be named "mon_groups".
+ * This makes sure "mon_groups" directory always has a ctrl_mon group
+ * as parent.
+ */
+static bool is_mon_groups(struct kernfs_node *kn, const char *name)
+{
+ return (!strcmp(kn->name, "mon_groups") &&
+ strcmp(name, "mon_groups"));
+}
+
+static int rdtgroup_mkdir(struct kernfs_node *parent_kn, const char *name,
+ umode_t mode)
+{
+ /* Do not accept '\n' to avoid unparsable situation. */
+ if (strchr(name, '\n'))
+ return -EINVAL;
+
+ /*
+ * If the parent directory is the root directory and RDT
+ * allocation is supported, add a control and monitoring
+ * subdirectory
+ */
+ if (rdt_alloc_capable && parent_kn == rdtgroup_default.kn)
+ return rdtgroup_mkdir_ctrl_mon(parent_kn, parent_kn, name, mode);
+
+ /*
+ * If RDT monitoring is supported and the parent directory is a valid
+ * "mon_groups" directory, add a monitoring subdirectory.
+ */
+ if (rdt_mon_capable && is_mon_groups(parent_kn, name))
+ return rdtgroup_mkdir_mon(parent_kn, parent_kn->parent, name, mode);
+
+ return -EPERM;
+}
+
+static int rdtgroup_rmdir_mon(struct kernfs_node *kn, struct rdtgroup *rdtgrp,
+ cpumask_var_t tmpmask)
+{
+ struct rdtgroup *prdtgrp = rdtgrp->mon.parent;
+ int cpu;
+
+ /* Give any tasks back to the parent group */
+ rdt_move_group_tasks(rdtgrp, prdtgrp, tmpmask);
+
+ /* Update per cpu rmid of the moved CPUs first */
+ for_each_cpu(cpu, &rdtgrp->cpu_mask)
+ per_cpu(pqr_state.default_rmid, cpu) = prdtgrp->mon.rmid;
+ /*
+ * Update the MSR on moved CPUs and CPUs which have moved
+ * task running on them.
+ */
+ cpumask_or(tmpmask, tmpmask, &rdtgrp->cpu_mask);
+ update_closid_rmid(tmpmask, NULL);
+
+ rdtgrp->flags = RDT_DELETED;
+ free_rmid(rdtgrp->mon.rmid);
+
+ /*
+ * Remove the rdtgrp from the parent ctrl_mon group's list
+ */
+ WARN_ON(list_empty(&prdtgrp->mon.crdtgrp_list));
+ list_del(&rdtgrp->mon.crdtgrp_list);
+
+ /*
+ * one extra hold on this, will drop when we kfree(rdtgrp)
+ * in rdtgroup_kn_unlock()
+ */
+ kernfs_get(kn);
+ kernfs_remove(rdtgrp->kn);
+
+ return 0;
+}
+
+static int rdtgroup_rmdir_ctrl(struct kernfs_node *kn, struct rdtgroup *rdtgrp,
+ cpumask_var_t tmpmask)
+{
+ int cpu;
+
/* Give any tasks back to the default group */
rdt_move_group_tasks(rdtgrp, &rdtgroup_default, tmpmask);
@@ -1100,18 +1772,28 @@ static int rdtgroup_rmdir(struct kernfs_node *kn)
cpumask_or(&rdtgroup_default.cpu_mask,
&rdtgroup_default.cpu_mask, &rdtgrp->cpu_mask);
- /* Update per cpu closid of the moved CPUs first */
- for_each_cpu(cpu, &rdtgrp->cpu_mask)
- per_cpu(cpu_closid, cpu) = closid;
+ /* Update per cpu closid and rmid of the moved CPUs first */
+ for_each_cpu(cpu, &rdtgrp->cpu_mask) {
+ per_cpu(pqr_state.default_closid, cpu) = rdtgroup_default.closid;
+ per_cpu(pqr_state.default_rmid, cpu) = rdtgroup_default.mon.rmid;
+ }
+
/*
* Update the MSR on moved CPUs and CPUs which have moved
* task running on them.
*/
cpumask_or(tmpmask, tmpmask, &rdtgrp->cpu_mask);
- rdt_update_closid(tmpmask, NULL);
+ update_closid_rmid(tmpmask, NULL);
rdtgrp->flags = RDT_DELETED;
closid_free(rdtgrp->closid);
+ free_rmid(rdtgrp->mon.rmid);
+
+ /*
+ * Free all the child monitor group rmids.
+ */
+ free_all_child_rdtgrp(rdtgrp);
+
list_del(&rdtgrp->rdtgroup_list);
/*
@@ -1120,7 +1802,41 @@ static int rdtgroup_rmdir(struct kernfs_node *kn)
*/
kernfs_get(kn);
kernfs_remove(rdtgrp->kn);
- ret = 0;
+
+ return 0;
+}
+
+static int rdtgroup_rmdir(struct kernfs_node *kn)
+{
+ struct kernfs_node *parent_kn = kn->parent;
+ struct rdtgroup *rdtgrp;
+ cpumask_var_t tmpmask;
+ int ret = 0;
+
+ if (!zalloc_cpumask_var(&tmpmask, GFP_KERNEL))
+ return -ENOMEM;
+
+ rdtgrp = rdtgroup_kn_lock_live(kn);
+ if (!rdtgrp) {
+ ret = -EPERM;
+ goto out;
+ }
+
+ /*
+ * If the rdtgroup is a ctrl_mon group and parent directory
+ * is the root directory, remove the ctrl_mon group.
+ *
+ * If the rdtgroup is a mon group and parent directory
+ * is a valid "mon_groups" directory, remove the mon group.
+ */
+ if (rdtgrp->type == RDTCTRL_GROUP && parent_kn == rdtgroup_default.kn)
+ ret = rdtgroup_rmdir_ctrl(kn, rdtgrp, tmpmask);
+ else if (rdtgrp->type == RDTMON_GROUP &&
+ is_mon_groups(parent_kn, kn->name))
+ ret = rdtgroup_rmdir_mon(kn, rdtgrp, tmpmask);
+ else
+ ret = -EPERM;
+
out:
rdtgroup_kn_unlock(kn);
free_cpumask_var(tmpmask);
@@ -1129,7 +1845,7 @@ out:
static int rdtgroup_show_options(struct seq_file *seq, struct kernfs_root *kf)
{
- if (rdt_resources_all[RDT_RESOURCE_L3DATA].enabled)
+ if (rdt_resources_all[RDT_RESOURCE_L3DATA].alloc_enabled)
seq_puts(seq, ",cdp");
return 0;
}
@@ -1153,10 +1869,13 @@ static int __init rdtgroup_setup_root(void)
mutex_lock(&rdtgroup_mutex);
rdtgroup_default.closid = 0;
+ rdtgroup_default.mon.rmid = 0;
+ rdtgroup_default.type = RDTCTRL_GROUP;
+ INIT_LIST_HEAD(&rdtgroup_default.mon.crdtgrp_list);
+
list_add(&rdtgroup_default.rdtgroup_list, &rdt_all_groups);
- ret = rdtgroup_add_files(rdt_root->kn, rdtgroup_base_files,
- ARRAY_SIZE(rdtgroup_base_files));
+ ret = rdtgroup_add_files(rdt_root->kn, RF_CTRL_BASE);
if (ret) {
kernfs_destroy_root(rdt_root);
goto out;
diff --git a/arch/x86/kernel/cpu/intel_rdt_schemata.c b/arch/x86/kernel/cpu/intel_rdt_schemata.c
deleted file mode 100644
index 406d7a6532f9..000000000000
--- a/arch/x86/kernel/cpu/intel_rdt_schemata.c
+++ /dev/null
@@ -1,286 +0,0 @@
-/*
- * Resource Director Technology(RDT)
- * - Cache Allocation code.
- *
- * Copyright (C) 2016 Intel Corporation
- *
- * Authors:
- * Fenghua Yu <fenghua.yu@intel.com>
- * Tony Luck <tony.luck@intel.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * More information about RDT be found in the Intel (R) x86 Architecture
- * Software Developer Manual June 2016, volume 3, section 17.17.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernfs.h>
-#include <linux/seq_file.h>
-#include <linux/slab.h>
-#include <asm/intel_rdt.h>
-
-/*
- * Check whether MBA bandwidth percentage value is correct. The value is
- * checked against the minimum and max bandwidth values specified by the
- * hardware. The allocated bandwidth percentage is rounded to the next
- * control step available on the hardware.
- */
-static bool bw_validate(char *buf, unsigned long *data, struct rdt_resource *r)
-{
- unsigned long bw;
- int ret;
-
- /*
- * Only linear delay values is supported for current Intel SKUs.
- */
- if (!r->membw.delay_linear)
- return false;
-
- ret = kstrtoul(buf, 10, &bw);
- if (ret)
- return false;
-
- if (bw < r->membw.min_bw || bw > r->default_ctrl)
- return false;
-
- *data = roundup(bw, (unsigned long)r->membw.bw_gran);
- return true;
-}
-
-int parse_bw(char *buf, struct rdt_resource *r, struct rdt_domain *d)
-{
- unsigned long data;
-
- if (d->have_new_ctrl)
- return -EINVAL;
-
- if (!bw_validate(buf, &data, r))
- return -EINVAL;
- d->new_ctrl = data;
- d->have_new_ctrl = true;
-
- return 0;
-}
-
-/*
- * Check whether a cache bit mask is valid. The SDM says:
- * Please note that all (and only) contiguous '1' combinations
- * are allowed (e.g. FFFFH, 0FF0H, 003CH, etc.).
- * Additionally Haswell requires at least two bits set.
- */
-static bool cbm_validate(char *buf, unsigned long *data, struct rdt_resource *r)
-{
- unsigned long first_bit, zero_bit, val;
- unsigned int cbm_len = r->cache.cbm_len;
- int ret;
-
- ret = kstrtoul(buf, 16, &val);
- if (ret)
- return false;
-
- if (val == 0 || val > r->default_ctrl)
- return false;
-
- first_bit = find_first_bit(&val, cbm_len);
- zero_bit = find_next_zero_bit(&val, cbm_len, first_bit);
-
- if (find_next_bit(&val, cbm_len, zero_bit) < cbm_len)
- return false;
-
- if ((zero_bit - first_bit) < r->cache.min_cbm_bits)
- return false;
-
- *data = val;
- return true;
-}
-
-/*
- * Read one cache bit mask (hex). Check that it is valid for the current
- * resource type.
- */
-int parse_cbm(char *buf, struct rdt_resource *r, struct rdt_domain *d)
-{
- unsigned long data;
-
- if (d->have_new_ctrl)
- return -EINVAL;
-
- if(!cbm_validate(buf, &data, r))
- return -EINVAL;
- d->new_ctrl = data;
- d->have_new_ctrl = true;
-
- return 0;
-}
-
-/*
- * For each domain in this resource we expect to find a series of:
- * id=mask
- * separated by ";". The "id" is in decimal, and must match one of
- * the "id"s for this resource.
- */
-static int parse_line(char *line, struct rdt_resource *r)
-{
- char *dom = NULL, *id;
- struct rdt_domain *d;
- unsigned long dom_id;
-
-next:
- if (!line || line[0] == '\0')
- return 0;
- dom = strsep(&line, ";");
- id = strsep(&dom, "=");
- if (!dom || kstrtoul(id, 10, &dom_id))
- return -EINVAL;
- dom = strim(dom);
- list_for_each_entry(d, &r->domains, list) {
- if (d->id == dom_id) {
- if (r->parse_ctrlval(dom, r, d))
- return -EINVAL;
- goto next;
- }
- }
- return -EINVAL;
-}
-
-static int update_domains(struct rdt_resource *r, int closid)
-{
- struct msr_param msr_param;
- cpumask_var_t cpu_mask;
- struct rdt_domain *d;
- int cpu;
-
- if (!zalloc_cpumask_var(&cpu_mask, GFP_KERNEL))
- return -ENOMEM;
-
- msr_param.low = closid;
- msr_param.high = msr_param.low + 1;
- msr_param.res = r;
-
- list_for_each_entry(d, &r->domains, list) {
- if (d->have_new_ctrl && d->new_ctrl != d->ctrl_val[closid]) {
- cpumask_set_cpu(cpumask_any(&d->cpu_mask), cpu_mask);
- d->ctrl_val[closid] = d->new_ctrl;
- }
- }
- if (cpumask_empty(cpu_mask))
- goto done;
- cpu = get_cpu();
- /* Update CBM on this cpu if it's in cpu_mask. */
- if (cpumask_test_cpu(cpu, cpu_mask))
- rdt_ctrl_update(&msr_param);
- /* Update CBM on other cpus. */
- smp_call_function_many(cpu_mask, rdt_ctrl_update, &msr_param, 1);
- put_cpu();
-
-done:
- free_cpumask_var(cpu_mask);
-
- return 0;
-}
-
-static int rdtgroup_parse_resource(char *resname, char *tok, int closid)
-{
- struct rdt_resource *r;
-
- for_each_enabled_rdt_resource(r) {
- if (!strcmp(resname, r->name) && closid < r->num_closid)
- return parse_line(tok, r);
- }
- return -EINVAL;
-}
-
-ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of,
- char *buf, size_t nbytes, loff_t off)
-{
- struct rdtgroup *rdtgrp;
- struct rdt_domain *dom;
- struct rdt_resource *r;
- char *tok, *resname;
- int closid, ret = 0;
-
- /* Valid input requires a trailing newline */
- if (nbytes == 0 || buf[nbytes - 1] != '\n')
- return -EINVAL;
- buf[nbytes - 1] = '\0';
-
- rdtgrp = rdtgroup_kn_lock_live(of->kn);
- if (!rdtgrp) {
- rdtgroup_kn_unlock(of->kn);
- return -ENOENT;
- }
-
- closid = rdtgrp->closid;
-
- for_each_enabled_rdt_resource(r) {
- list_for_each_entry(dom, &r->domains, list)
- dom->have_new_ctrl = false;
- }
-
- while ((tok = strsep(&buf, "\n")) != NULL) {
- resname = strim(strsep(&tok, ":"));
- if (!tok) {
- ret = -EINVAL;
- goto out;
- }
- ret = rdtgroup_parse_resource(resname, tok, closid);
- if (ret)
- goto out;
- }
-
- for_each_enabled_rdt_resource(r) {
- ret = update_domains(r, closid);
- if (ret)
- goto out;
- }
-
-out:
- rdtgroup_kn_unlock(of->kn);
- return ret ?: nbytes;
-}
-
-static void show_doms(struct seq_file *s, struct rdt_resource *r, int closid)
-{
- struct rdt_domain *dom;
- bool sep = false;
-
- seq_printf(s, "%*s:", max_name_width, r->name);
- list_for_each_entry(dom, &r->domains, list) {
- if (sep)
- seq_puts(s, ";");
- seq_printf(s, r->format_str, dom->id, max_data_width,
- dom->ctrl_val[closid]);
- sep = true;
- }
- seq_puts(s, "\n");
-}
-
-int rdtgroup_schemata_show(struct kernfs_open_file *of,
- struct seq_file *s, void *v)
-{
- struct rdtgroup *rdtgrp;
- struct rdt_resource *r;
- int closid, ret = 0;
-
- rdtgrp = rdtgroup_kn_lock_live(of->kn);
- if (rdtgrp) {
- closid = rdtgrp->closid;
- for_each_enabled_rdt_resource(r) {
- if (closid < r->num_closid)
- show_doms(s, r, closid);
- }
- } else {
- ret = -ENOENT;
- }
- rdtgroup_kn_unlock(of->kn);
- return ret;
-}
diff --git a/arch/x86/kernel/cpu/mcheck/dev-mcelog.c b/arch/x86/kernel/cpu/mcheck/dev-mcelog.c
index 9c632cb88546..10cec43aac38 100644
--- a/arch/x86/kernel/cpu/mcheck/dev-mcelog.c
+++ b/arch/x86/kernel/cpu/mcheck/dev-mcelog.c
@@ -17,6 +17,8 @@
#include "mce-internal.h"
+static BLOCKING_NOTIFIER_HEAD(mce_injector_chain);
+
static DEFINE_MUTEX(mce_chrdev_read_mutex);
static char mce_helper[128];
@@ -345,24 +347,49 @@ static long mce_chrdev_ioctl(struct file *f, unsigned int cmd,
}
}
-static ssize_t (*mce_write)(struct file *filp, const char __user *ubuf,
- size_t usize, loff_t *off);
+void mce_register_injector_chain(struct notifier_block *nb)
+{
+ blocking_notifier_chain_register(&mce_injector_chain, nb);
+}
+EXPORT_SYMBOL_GPL(mce_register_injector_chain);
-void register_mce_write_callback(ssize_t (*fn)(struct file *filp,
- const char __user *ubuf,
- size_t usize, loff_t *off))
+void mce_unregister_injector_chain(struct notifier_block *nb)
{
- mce_write = fn;
+ blocking_notifier_chain_unregister(&mce_injector_chain, nb);
}
-EXPORT_SYMBOL_GPL(register_mce_write_callback);
+EXPORT_SYMBOL_GPL(mce_unregister_injector_chain);
static ssize_t mce_chrdev_write(struct file *filp, const char __user *ubuf,
size_t usize, loff_t *off)
{
- if (mce_write)
- return mce_write(filp, ubuf, usize, off);
- else
+ struct mce m;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ /*
+ * There are some cases where real MSR reads could slip
+ * through.
+ */
+ if (!boot_cpu_has(X86_FEATURE_MCE) || !boot_cpu_has(X86_FEATURE_MCA))
+ return -EIO;
+
+ if ((unsigned long)usize > sizeof(struct mce))
+ usize = sizeof(struct mce);
+ if (copy_from_user(&m, ubuf, usize))
+ return -EFAULT;
+
+ if (m.extcpu >= num_possible_cpus() || !cpu_online(m.extcpu))
return -EINVAL;
+
+ /*
+ * Need to give user space some time to set everything up,
+ * so do it a jiffie or two later everywhere.
+ */
+ schedule_timeout(2);
+
+ blocking_notifier_call_chain(&mce_injector_chain, 0, &m);
+
+ return usize;
}
static const struct file_operations mce_chrdev_ops = {
@@ -388,9 +415,15 @@ static __init int dev_mcelog_init_device(void)
/* register character device /dev/mcelog */
err = misc_register(&mce_chrdev_device);
if (err) {
- pr_err("Unable to init device /dev/mcelog (rc: %d)\n", err);
+ if (err == -EBUSY)
+ /* Xen dom0 might have registered the device already. */
+ pr_info("Unable to init device /dev/mcelog, already registered");
+ else
+ pr_err("Unable to init device /dev/mcelog (rc: %d)\n", err);
+
return err;
}
+
mce_register_decode_chain(&dev_mcelog_nb);
return 0;
}
diff --git a/arch/x86/kernel/cpu/mcheck/mce-inject.c b/arch/x86/kernel/cpu/mcheck/mce-inject.c
index 99165b206df3..231ad23b24a9 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-inject.c
+++ b/arch/x86/kernel/cpu/mcheck/mce-inject.c
@@ -10,23 +10,105 @@
* Authors:
* Andi Kleen
* Ying Huang
+ *
+ * The AMD part (from mce_amd_inj.c): a simple MCE injection facility
+ * for testing different aspects of the RAS code. This driver should be
+ * built as module so that it can be loaded on production kernels for
+ * testing purposes.
+ *
+ * This file may be distributed under the terms of the GNU General Public
+ * License version 2.
+ *
+ * Copyright (c) 2010-17: Borislav Petkov <bp@alien8.de>
+ * Advanced Micro Devices Inc.
*/
-#include <linux/uaccess.h>
-#include <linux/module.h>
-#include <linux/timer.h>
+
+#include <linux/cpu.h>
+#include <linux/debugfs.h>
#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/fs.h>
-#include <linux/preempt.h>
-#include <linux/smp.h>
+#include <linux/module.h>
#include <linux/notifier.h>
-#include <linux/kdebug.h>
-#include <linux/cpu.h>
-#include <linux/sched.h>
-#include <linux/gfp.h>
-#include <asm/mce.h>
+#include <linux/pci.h>
+#include <linux/uaccess.h>
+
+#include <asm/amd_nb.h>
#include <asm/apic.h>
+#include <asm/irq_vectors.h>
+#include <asm/mce.h>
#include <asm/nmi.h>
+#include <asm/smp.h>
+
+#include "mce-internal.h"
+
+/*
+ * Collect all the MCi_XXX settings
+ */
+static struct mce i_mce;
+static struct dentry *dfs_inj;
+
+static u8 n_banks;
+
+#define MAX_FLAG_OPT_SIZE 3
+#define NBCFG 0x44
+
+enum injection_type {
+ SW_INJ = 0, /* SW injection, simply decode the error */
+ HW_INJ, /* Trigger a #MC */
+ DFR_INT_INJ, /* Trigger Deferred error interrupt */
+ THR_INT_INJ, /* Trigger threshold interrupt */
+ N_INJ_TYPES,
+};
+
+static const char * const flags_options[] = {
+ [SW_INJ] = "sw",
+ [HW_INJ] = "hw",
+ [DFR_INT_INJ] = "df",
+ [THR_INT_INJ] = "th",
+ NULL
+};
+
+/* Set default injection to SW_INJ */
+static enum injection_type inj_type = SW_INJ;
+
+#define MCE_INJECT_SET(reg) \
+static int inj_##reg##_set(void *data, u64 val) \
+{ \
+ struct mce *m = (struct mce *)data; \
+ \
+ m->reg = val; \
+ return 0; \
+}
+
+MCE_INJECT_SET(status);
+MCE_INJECT_SET(misc);
+MCE_INJECT_SET(addr);
+MCE_INJECT_SET(synd);
+
+#define MCE_INJECT_GET(reg) \
+static int inj_##reg##_get(void *data, u64 *val) \
+{ \
+ struct mce *m = (struct mce *)data; \
+ \
+ *val = m->reg; \
+ return 0; \
+}
+
+MCE_INJECT_GET(status);
+MCE_INJECT_GET(misc);
+MCE_INJECT_GET(addr);
+MCE_INJECT_GET(synd);
+
+DEFINE_SIMPLE_ATTRIBUTE(status_fops, inj_status_get, inj_status_set, "%llx\n");
+DEFINE_SIMPLE_ATTRIBUTE(misc_fops, inj_misc_get, inj_misc_set, "%llx\n");
+DEFINE_SIMPLE_ATTRIBUTE(addr_fops, inj_addr_get, inj_addr_set, "%llx\n");
+DEFINE_SIMPLE_ATTRIBUTE(synd_fops, inj_synd_get, inj_synd_set, "%llx\n");
+
+static void setup_inj_struct(struct mce *m)
+{
+ memset(m, 0, sizeof(struct mce));
+
+ m->cpuvendor = boot_cpu_data.x86_vendor;
+}
/* Update fake mce registers on current CPU. */
static void inject_mce(struct mce *m)
@@ -143,7 +225,7 @@ static int raise_local(void)
return ret;
}
-static void raise_mce(struct mce *m)
+static void __maybe_unused raise_mce(struct mce *m)
{
int context = MCJ_CTX(m->inject_flags);
@@ -198,55 +280,454 @@ static void raise_mce(struct mce *m)
}
}
-/* Error injection interface */
-static ssize_t mce_write(struct file *filp, const char __user *ubuf,
- size_t usize, loff_t *off)
+static int mce_inject_raise(struct notifier_block *nb, unsigned long val,
+ void *data)
{
- struct mce m;
+ struct mce *m = (struct mce *)data;
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
- /*
- * There are some cases where real MSR reads could slip
- * through.
- */
- if (!boot_cpu_has(X86_FEATURE_MCE) || !boot_cpu_has(X86_FEATURE_MCA))
- return -EIO;
+ if (!m)
+ return NOTIFY_DONE;
+
+ mutex_lock(&mce_inject_mutex);
+ raise_mce(m);
+ mutex_unlock(&mce_inject_mutex);
+
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block inject_nb = {
+ .notifier_call = mce_inject_raise,
+};
+
+/*
+ * Caller needs to be make sure this cpu doesn't disappear
+ * from under us, i.e.: get_cpu/put_cpu.
+ */
+static int toggle_hw_mce_inject(unsigned int cpu, bool enable)
+{
+ u32 l, h;
+ int err;
+
+ err = rdmsr_on_cpu(cpu, MSR_K7_HWCR, &l, &h);
+ if (err) {
+ pr_err("%s: error reading HWCR\n", __func__);
+ return err;
+ }
+
+ enable ? (l |= BIT(18)) : (l &= ~BIT(18));
+
+ err = wrmsr_on_cpu(cpu, MSR_K7_HWCR, l, h);
+ if (err)
+ pr_err("%s: error writing HWCR\n", __func__);
- if ((unsigned long)usize > sizeof(struct mce))
- usize = sizeof(struct mce);
- if (copy_from_user(&m, ubuf, usize))
+ return err;
+}
+
+static int __set_inj(const char *buf)
+{
+ int i;
+
+ for (i = 0; i < N_INJ_TYPES; i++) {
+ if (!strncmp(flags_options[i], buf, strlen(flags_options[i]))) {
+ inj_type = i;
+ return 0;
+ }
+ }
+ return -EINVAL;
+}
+
+static ssize_t flags_read(struct file *filp, char __user *ubuf,
+ size_t cnt, loff_t *ppos)
+{
+ char buf[MAX_FLAG_OPT_SIZE];
+ int n;
+
+ n = sprintf(buf, "%s\n", flags_options[inj_type]);
+
+ return simple_read_from_buffer(ubuf, cnt, ppos, buf, n);
+}
+
+static ssize_t flags_write(struct file *filp, const char __user *ubuf,
+ size_t cnt, loff_t *ppos)
+{
+ char buf[MAX_FLAG_OPT_SIZE], *__buf;
+ int err;
+
+ if (cnt > MAX_FLAG_OPT_SIZE)
+ return -EINVAL;
+
+ if (copy_from_user(&buf, ubuf, cnt))
return -EFAULT;
- if (m.extcpu >= num_possible_cpus() || !cpu_online(m.extcpu))
+ buf[cnt - 1] = 0;
+
+ /* strip whitespace */
+ __buf = strstrip(buf);
+
+ err = __set_inj(__buf);
+ if (err) {
+ pr_err("%s: Invalid flags value: %s\n", __func__, __buf);
+ return err;
+ }
+
+ *ppos += cnt;
+
+ return cnt;
+}
+
+static const struct file_operations flags_fops = {
+ .read = flags_read,
+ .write = flags_write,
+ .llseek = generic_file_llseek,
+};
+
+/*
+ * On which CPU to inject?
+ */
+MCE_INJECT_GET(extcpu);
+
+static int inj_extcpu_set(void *data, u64 val)
+{
+ struct mce *m = (struct mce *)data;
+
+ if (val >= nr_cpu_ids || !cpu_online(val)) {
+ pr_err("%s: Invalid CPU: %llu\n", __func__, val);
return -EINVAL;
+ }
+ m->extcpu = val;
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(extcpu_fops, inj_extcpu_get, inj_extcpu_set, "%llu\n");
+
+static void trigger_mce(void *info)
+{
+ asm volatile("int $18");
+}
+
+static void trigger_dfr_int(void *info)
+{
+ asm volatile("int %0" :: "i" (DEFERRED_ERROR_VECTOR));
+}
+
+static void trigger_thr_int(void *info)
+{
+ asm volatile("int %0" :: "i" (THRESHOLD_APIC_VECTOR));
+}
+
+static u32 get_nbc_for_node(int node_id)
+{
+ struct cpuinfo_x86 *c = &boot_cpu_data;
+ u32 cores_per_node;
+
+ cores_per_node = (c->x86_max_cores * smp_num_siblings) / amd_get_nodes_per_socket();
+
+ return cores_per_node * node_id;
+}
+
+static void toggle_nb_mca_mst_cpu(u16 nid)
+{
+ struct amd_northbridge *nb;
+ struct pci_dev *F3;
+ u32 val;
+ int err;
+
+ nb = node_to_amd_nb(nid);
+ if (!nb)
+ return;
+
+ F3 = nb->misc;
+ if (!F3)
+ return;
+
+ err = pci_read_config_dword(F3, NBCFG, &val);
+ if (err) {
+ pr_err("%s: Error reading F%dx%03x.\n",
+ __func__, PCI_FUNC(F3->devfn), NBCFG);
+ return;
+ }
+
+ if (val & BIT(27))
+ return;
+
+ pr_err("%s: Set D18F3x44[NbMcaToMstCpuEn] which BIOS hasn't done.\n",
+ __func__);
+
+ val |= BIT(27);
+ err = pci_write_config_dword(F3, NBCFG, val);
+ if (err)
+ pr_err("%s: Error writing F%dx%03x.\n",
+ __func__, PCI_FUNC(F3->devfn), NBCFG);
+}
+
+static void prepare_msrs(void *info)
+{
+ struct mce m = *(struct mce *)info;
+ u8 b = m.bank;
+
+ wrmsrl(MSR_IA32_MCG_STATUS, m.mcgstatus);
+
+ if (boot_cpu_has(X86_FEATURE_SMCA)) {
+ if (m.inject_flags == DFR_INT_INJ) {
+ wrmsrl(MSR_AMD64_SMCA_MCx_DESTAT(b), m.status);
+ wrmsrl(MSR_AMD64_SMCA_MCx_DEADDR(b), m.addr);
+ } else {
+ wrmsrl(MSR_AMD64_SMCA_MCx_STATUS(b), m.status);
+ wrmsrl(MSR_AMD64_SMCA_MCx_ADDR(b), m.addr);
+ }
+
+ wrmsrl(MSR_AMD64_SMCA_MCx_MISC(b), m.misc);
+ wrmsrl(MSR_AMD64_SMCA_MCx_SYND(b), m.synd);
+ } else {
+ wrmsrl(MSR_IA32_MCx_STATUS(b), m.status);
+ wrmsrl(MSR_IA32_MCx_ADDR(b), m.addr);
+ wrmsrl(MSR_IA32_MCx_MISC(b), m.misc);
+ }
+}
+
+static void do_inject(void)
+{
+ u64 mcg_status = 0;
+ unsigned int cpu = i_mce.extcpu;
+ u8 b = i_mce.bank;
+
+ rdtscll(i_mce.tsc);
+
+ if (i_mce.misc)
+ i_mce.status |= MCI_STATUS_MISCV;
+
+ if (i_mce.synd)
+ i_mce.status |= MCI_STATUS_SYNDV;
+
+ if (inj_type == SW_INJ) {
+ mce_inject_log(&i_mce);
+ return;
+ }
+
+ /* prep MCE global settings for the injection */
+ mcg_status = MCG_STATUS_MCIP | MCG_STATUS_EIPV;
+
+ if (!(i_mce.status & MCI_STATUS_PCC))
+ mcg_status |= MCG_STATUS_RIPV;
/*
- * Need to give user space some time to set everything up,
- * so do it a jiffie or two later everywhere.
+ * Ensure necessary status bits for deferred errors:
+ * - MCx_STATUS[Deferred]: make sure it is a deferred error
+ * - MCx_STATUS[UC] cleared: deferred errors are _not_ UC
*/
- schedule_timeout(2);
+ if (inj_type == DFR_INT_INJ) {
+ i_mce.status |= MCI_STATUS_DEFERRED;
+ i_mce.status |= (i_mce.status & ~MCI_STATUS_UC);
+ }
- mutex_lock(&mce_inject_mutex);
- raise_mce(&m);
- mutex_unlock(&mce_inject_mutex);
- return usize;
+ /*
+ * For multi node CPUs, logging and reporting of bank 4 errors happens
+ * only on the node base core. Refer to D18F3x44[NbMcaToMstCpuEn] for
+ * Fam10h and later BKDGs.
+ */
+ if (static_cpu_has(X86_FEATURE_AMD_DCM) &&
+ b == 4 &&
+ boot_cpu_data.x86 < 0x17) {
+ toggle_nb_mca_mst_cpu(amd_get_nb_id(cpu));
+ cpu = get_nbc_for_node(amd_get_nb_id(cpu));
+ }
+
+ get_online_cpus();
+ if (!cpu_online(cpu))
+ goto err;
+
+ toggle_hw_mce_inject(cpu, true);
+
+ i_mce.mcgstatus = mcg_status;
+ i_mce.inject_flags = inj_type;
+ smp_call_function_single(cpu, prepare_msrs, &i_mce, 0);
+
+ toggle_hw_mce_inject(cpu, false);
+
+ switch (inj_type) {
+ case DFR_INT_INJ:
+ smp_call_function_single(cpu, trigger_dfr_int, NULL, 0);
+ break;
+ case THR_INT_INJ:
+ smp_call_function_single(cpu, trigger_thr_int, NULL, 0);
+ break;
+ default:
+ smp_call_function_single(cpu, trigger_mce, NULL, 0);
+ }
+
+err:
+ put_online_cpus();
+
+}
+
+/*
+ * This denotes into which bank we're injecting and triggers
+ * the injection, at the same time.
+ */
+static int inj_bank_set(void *data, u64 val)
+{
+ struct mce *m = (struct mce *)data;
+
+ if (val >= n_banks) {
+ pr_err("Non-existent MCE bank: %llu\n", val);
+ return -EINVAL;
+ }
+
+ m->bank = val;
+ do_inject();
+
+ return 0;
+}
+
+MCE_INJECT_GET(bank);
+
+DEFINE_SIMPLE_ATTRIBUTE(bank_fops, inj_bank_get, inj_bank_set, "%llu\n");
+
+static const char readme_msg[] =
+"Description of the files and their usages:\n"
+"\n"
+"Note1: i refers to the bank number below.\n"
+"Note2: See respective BKDGs for the exact bit definitions of the files below\n"
+"as they mirror the hardware registers.\n"
+"\n"
+"status:\t Set MCi_STATUS: the bits in that MSR control the error type and\n"
+"\t attributes of the error which caused the MCE.\n"
+"\n"
+"misc:\t Set MCi_MISC: provide auxiliary info about the error. It is mostly\n"
+"\t used for error thresholding purposes and its validity is indicated by\n"
+"\t MCi_STATUS[MiscV].\n"
+"\n"
+"synd:\t Set MCi_SYND: provide syndrome info about the error. Only valid on\n"
+"\t Scalable MCA systems, and its validity is indicated by MCi_STATUS[SyndV].\n"
+"\n"
+"addr:\t Error address value to be written to MCi_ADDR. Log address information\n"
+"\t associated with the error.\n"
+"\n"
+"cpu:\t The CPU to inject the error on.\n"
+"\n"
+"bank:\t Specify the bank you want to inject the error into: the number of\n"
+"\t banks in a processor varies and is family/model-specific, therefore, the\n"
+"\t supplied value is sanity-checked. Setting the bank value also triggers the\n"
+"\t injection.\n"
+"\n"
+"flags:\t Injection type to be performed. Writing to this file will trigger a\n"
+"\t real machine check, an APIC interrupt or invoke the error decoder routines\n"
+"\t for AMD processors.\n"
+"\n"
+"\t Allowed error injection types:\n"
+"\t - \"sw\": Software error injection. Decode error to a human-readable \n"
+"\t format only. Safe to use.\n"
+"\t - \"hw\": Hardware error injection. Causes the #MC exception handler to \n"
+"\t handle the error. Be warned: might cause system panic if MCi_STATUS[PCC] \n"
+"\t is set. Therefore, consider setting (debugfs_mountpoint)/mce/fake_panic \n"
+"\t before injecting.\n"
+"\t - \"df\": Trigger APIC interrupt for Deferred error. Causes deferred \n"
+"\t error APIC interrupt handler to handle the error if the feature is \n"
+"\t is present in hardware. \n"
+"\t - \"th\": Trigger APIC interrupt for Threshold errors. Causes threshold \n"
+"\t APIC interrupt handler to handle the error. \n"
+"\n";
+
+static ssize_t
+inj_readme_read(struct file *filp, char __user *ubuf,
+ size_t cnt, loff_t *ppos)
+{
+ return simple_read_from_buffer(ubuf, cnt, ppos,
+ readme_msg, strlen(readme_msg));
+}
+
+static const struct file_operations readme_fops = {
+ .read = inj_readme_read,
+};
+
+static struct dfs_node {
+ char *name;
+ struct dentry *d;
+ const struct file_operations *fops;
+ umode_t perm;
+} dfs_fls[] = {
+ { .name = "status", .fops = &status_fops, .perm = S_IRUSR | S_IWUSR },
+ { .name = "misc", .fops = &misc_fops, .perm = S_IRUSR | S_IWUSR },
+ { .name = "addr", .fops = &addr_fops, .perm = S_IRUSR | S_IWUSR },
+ { .name = "synd", .fops = &synd_fops, .perm = S_IRUSR | S_IWUSR },
+ { .name = "bank", .fops = &bank_fops, .perm = S_IRUSR | S_IWUSR },
+ { .name = "flags", .fops = &flags_fops, .perm = S_IRUSR | S_IWUSR },
+ { .name = "cpu", .fops = &extcpu_fops, .perm = S_IRUSR | S_IWUSR },
+ { .name = "README", .fops = &readme_fops, .perm = S_IRUSR | S_IRGRP | S_IROTH },
+};
+
+static int __init debugfs_init(void)
+{
+ unsigned int i;
+ u64 cap;
+
+ rdmsrl(MSR_IA32_MCG_CAP, cap);
+ n_banks = cap & MCG_BANKCNT_MASK;
+
+ dfs_inj = debugfs_create_dir("mce-inject", NULL);
+ if (!dfs_inj)
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(dfs_fls); i++) {
+ dfs_fls[i].d = debugfs_create_file(dfs_fls[i].name,
+ dfs_fls[i].perm,
+ dfs_inj,
+ &i_mce,
+ dfs_fls[i].fops);
+
+ if (!dfs_fls[i].d)
+ goto err_dfs_add;
+ }
+
+ return 0;
+
+err_dfs_add:
+ while (i-- > 0)
+ debugfs_remove(dfs_fls[i].d);
+
+ debugfs_remove(dfs_inj);
+ dfs_inj = NULL;
+
+ return -ENODEV;
}
-static int inject_init(void)
+static int __init inject_init(void)
{
+ int err;
+
if (!alloc_cpumask_var(&mce_inject_cpumask, GFP_KERNEL))
return -ENOMEM;
+
+ err = debugfs_init();
+ if (err) {
+ free_cpumask_var(mce_inject_cpumask);
+ return err;
+ }
+
+ register_nmi_handler(NMI_LOCAL, mce_raise_notify, 0, "mce_notify");
+ mce_register_injector_chain(&inject_nb);
+
+ setup_inj_struct(&i_mce);
+
pr_info("Machine check injector initialized\n");
- register_mce_write_callback(mce_write);
- register_nmi_handler(NMI_LOCAL, mce_raise_notify, 0,
- "mce_notify");
+
return 0;
}
+static void __exit inject_exit(void)
+{
+
+ mce_unregister_injector_chain(&inject_nb);
+ unregister_nmi_handler(NMI_LOCAL, "mce_notify");
+
+ debugfs_remove_recursive(dfs_inj);
+ dfs_inj = NULL;
+
+ memset(&dfs_fls, 0, sizeof(dfs_fls));
+
+ free_cpumask_var(mce_inject_cpumask);
+}
+
module_init(inject_init);
-/*
- * Cannot tolerate unloading currently because we cannot
- * guarantee all openers of mce_chrdev will get a reference to us.
- */
+module_exit(inject_exit);
MODULE_LICENSE("GPL");
diff --git a/arch/x86/kernel/cpu/mcheck/mce-internal.h b/arch/x86/kernel/cpu/mcheck/mce-internal.h
index 654ad0668d72..debb974fd17d 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-internal.h
+++ b/arch/x86/kernel/cpu/mcheck/mce-internal.h
@@ -1,3 +1,6 @@
+#ifndef __X86_MCE_INTERNAL_H__
+#define __X86_MCE_INTERNAL_H__
+
#include <linux/device.h>
#include <asm/mce.h>
@@ -100,7 +103,15 @@ static inline bool mce_cmp(struct mce *m1, struct mce *m2)
extern struct device_attribute dev_attr_trigger;
#ifdef CONFIG_X86_MCELOG_LEGACY
-extern void mce_work_trigger(void);
+void mce_work_trigger(void);
+void mce_register_injector_chain(struct notifier_block *nb);
+void mce_unregister_injector_chain(struct notifier_block *nb);
#else
static inline void mce_work_trigger(void) { }
+static inline void mce_register_injector_chain(struct notifier_block *nb) { }
+static inline void mce_unregister_injector_chain(struct notifier_block *nb) { }
#endif
+
+extern struct mca_config mca_cfg;
+
+#endif /* __X86_MCE_INTERNAL_H__ */
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 5cfbaeb6529a..3b413065c613 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -51,6 +51,7 @@
#include <asm/mce.h>
#include <asm/msr.h>
#include <asm/reboot.h>
+#include <asm/set_memory.h>
#include "mce-internal.h"
@@ -673,7 +674,6 @@ bool machine_check_poll(enum mcp_flags flags, mce_banks_t *b)
{
bool error_seen = false;
struct mce m;
- int severity;
int i;
this_cpu_inc(mce_poll_count);
@@ -710,11 +710,7 @@ bool machine_check_poll(enum mcp_flags flags, mce_banks_t *b)
mce_read_aux(&m, i);
- severity = mce_severity(&m, mca_cfg.tolerant, NULL, false);
-
- if (severity == MCE_DEFERRED_SEVERITY && mce_is_memory_error(&m))
- if (m.status & MCI_STATUS_ADDRV)
- m.severity = severity;
+ m.severity = mce_severity(&m, mca_cfg.tolerant, NULL, false);
/*
* Don't get the IP here because it's unlikely to
@@ -1056,6 +1052,48 @@ static int do_memory_failure(struct mce *m)
return ret;
}
+#if defined(arch_unmap_kpfn) && defined(CONFIG_MEMORY_FAILURE)
+
+void arch_unmap_kpfn(unsigned long pfn)
+{
+ unsigned long decoy_addr;
+
+ /*
+ * Unmap this page from the kernel 1:1 mappings to make sure
+ * we don't log more errors because of speculative access to
+ * the page.
+ * We would like to just call:
+ * set_memory_np((unsigned long)pfn_to_kaddr(pfn), 1);
+ * but doing that would radically increase the odds of a
+ * speculative access to the posion page because we'd have
+ * the virtual address of the kernel 1:1 mapping sitting
+ * around in registers.
+ * Instead we get tricky. We create a non-canonical address
+ * that looks just like the one we want, but has bit 63 flipped.
+ * This relies on set_memory_np() not checking whether we passed
+ * a legal address.
+ */
+
+/*
+ * Build time check to see if we have a spare virtual bit. Don't want
+ * to leave this until run time because most developers don't have a
+ * system that can exercise this code path. This will only become a
+ * problem if/when we move beyond 5-level page tables.
+ *
+ * Hard code "9" here because cpp doesn't grok ilog2(PTRS_PER_PGD)
+ */
+#if PGDIR_SHIFT + 9 < 63
+ decoy_addr = (pfn << PAGE_SHIFT) + (PAGE_OFFSET ^ BIT(63));
+#else
+#error "no unused virtual bit available"
+#endif
+
+ if (set_memory_np(decoy_addr, 1))
+ pr_warn("Could not invalidate pfn=0x%lx from 1:1 map\n", pfn);
+
+}
+#endif
+
/*
* The actual machine check handler. This only handles real
* exceptions when something got corrupted coming in through int 18.
@@ -1550,7 +1588,7 @@ static int __mcheck_cpu_apply_quirks(struct cpuinfo_x86 *c)
*/
clear_bit(10, (unsigned long *)&mce_banks[4].ctl);
}
- if (c->x86 < 17 && cfg->bootlog < 0) {
+ if (c->x86 < 0x11 && cfg->bootlog < 0) {
/*
* Lots of broken BIOS around that don't clear them
* by default and leave crap in there. Don't log:
@@ -1832,7 +1870,8 @@ void mce_disable_bank(int bank)
* mce=TOLERANCELEVEL[,monarchtimeout] (number, see above)
* monarchtimeout is how long to wait for other CPUs on machine
* check, or 0 to not wait
- * mce=bootlog Log MCEs from before booting. Disabled by default on AMD.
+ * mce=bootlog Log MCEs from before booting. Disabled by default on AMD Fam10h
+ and older.
* mce=nobootlog Don't log MCEs from before booting.
* mce=bios_cmci_threshold Don't program the CMCI threshold
* mce=recovery force enable memcpy_mcsafe()
@@ -1912,12 +1951,13 @@ static void mce_disable_error_reporting(void)
static void vendor_disable_error_reporting(void)
{
/*
- * Don't clear on Intel CPUs. Some of these MSRs are socket-wide.
+ * Don't clear on Intel or AMD CPUs. Some of these MSRs are socket-wide.
* Disabling them for just a single offlined CPU is bad, since it will
* inhibit reporting for all shared resources on the socket like the
* last level cache (LLC), the integrated memory controller (iMC), etc.
*/
- if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)
+ if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL ||
+ boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
return;
mce_disable_error_reporting();
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c
index 6e4a047e4b68..486f640b02ef 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c
@@ -28,6 +28,8 @@
#include <asm/msr.h>
#include <asm/trace/irq_vectors.h>
+#include "mce-internal.h"
+
#define NR_BLOCKS 5
#define THRESHOLD_MAX 0xFFF
#define INT_TYPE_APIC 0x00020000
@@ -164,17 +166,48 @@ static void default_deferred_error_interrupt(void)
}
void (*deferred_error_int_vector)(void) = default_deferred_error_interrupt;
-static void get_smca_bank_info(unsigned int bank)
+static void smca_configure(unsigned int bank, unsigned int cpu)
{
- unsigned int i, hwid_mcatype, cpu = smp_processor_id();
+ unsigned int i, hwid_mcatype;
struct smca_hwid *s_hwid;
- u32 high, instance_id;
+ u32 high, low;
+ u32 smca_config = MSR_AMD64_SMCA_MCx_CONFIG(bank);
+
+ /* Set appropriate bits in MCA_CONFIG */
+ if (!rdmsr_safe(smca_config, &low, &high)) {
+ /*
+ * OS is required to set the MCAX bit to acknowledge that it is
+ * now using the new MSR ranges and new registers under each
+ * bank. It also means that the OS will configure deferred
+ * errors in the new MCx_CONFIG register. If the bit is not set,
+ * uncorrectable errors will cause a system panic.
+ *
+ * MCA_CONFIG[MCAX] is bit 32 (0 in the high portion of the MSR.)
+ */
+ high |= BIT(0);
+
+ /*
+ * SMCA sets the Deferred Error Interrupt type per bank.
+ *
+ * MCA_CONFIG[DeferredIntTypeSupported] is bit 5, and tells us
+ * if the DeferredIntType bit field is available.
+ *
+ * MCA_CONFIG[DeferredIntType] is bits [38:37] ([6:5] in the
+ * high portion of the MSR). OS should set this to 0x1 to enable
+ * APIC based interrupt. First, check that no interrupt has been
+ * set.
+ */
+ if ((low & BIT(5)) && !((high >> 5) & 0x3))
+ high |= BIT(5);
+
+ wrmsr(smca_config, low, high);
+ }
- /* Collect bank_info using CPU 0 for now. */
- if (cpu)
+ /* Return early if this bank was already initialized. */
+ if (smca_banks[bank].hwid)
return;
- if (rdmsr_safe_on_cpu(cpu, MSR_AMD64_SMCA_MCx_IPID(bank), &instance_id, &high)) {
+ if (rdmsr_safe_on_cpu(cpu, MSR_AMD64_SMCA_MCx_IPID(bank), &low, &high)) {
pr_warn("Failed to read MCA_IPID for bank %d\n", bank);
return;
}
@@ -185,13 +218,8 @@ static void get_smca_bank_info(unsigned int bank)
for (i = 0; i < ARRAY_SIZE(smca_hwid_mcatypes); i++) {
s_hwid = &smca_hwid_mcatypes[i];
if (hwid_mcatype == s_hwid->hwid_mcatype) {
-
- WARN(smca_banks[bank].hwid,
- "Bank %s already initialized!\n",
- smca_get_name(s_hwid->bank_type));
-
smca_banks[bank].hwid = s_hwid;
- smca_banks[bank].id = instance_id;
+ smca_banks[bank].id = low;
smca_banks[bank].sysfs_id = s_hwid->count++;
break;
}
@@ -433,7 +461,7 @@ prepare_threshold_block(unsigned int bank, unsigned int block, u32 addr,
int offset, u32 misc_high)
{
unsigned int cpu = smp_processor_id();
- u32 smca_low, smca_high, smca_addr;
+ u32 smca_low, smca_high;
struct threshold_block b;
int new;
@@ -457,51 +485,6 @@ prepare_threshold_block(unsigned int bank, unsigned int block, u32 addr,
goto set_offset;
}
- smca_addr = MSR_AMD64_SMCA_MCx_CONFIG(bank);
-
- if (!rdmsr_safe(smca_addr, &smca_low, &smca_high)) {
- /*
- * OS is required to set the MCAX bit to acknowledge that it is
- * now using the new MSR ranges and new registers under each
- * bank. It also means that the OS will configure deferred
- * errors in the new MCx_CONFIG register. If the bit is not set,
- * uncorrectable errors will cause a system panic.
- *
- * MCA_CONFIG[MCAX] is bit 32 (0 in the high portion of the MSR.)
- */
- smca_high |= BIT(0);
-
- /*
- * SMCA logs Deferred Error information in MCA_DE{STAT,ADDR}
- * registers with the option of additionally logging to
- * MCA_{STATUS,ADDR} if MCA_CONFIG[LogDeferredInMcaStat] is set.
- *
- * This bit is usually set by BIOS to retain the old behavior
- * for OSes that don't use the new registers. Linux supports the
- * new registers so let's disable that additional logging here.
- *
- * MCA_CONFIG[LogDeferredInMcaStat] is bit 34 (bit 2 in the high
- * portion of the MSR).
- */
- smca_high &= ~BIT(2);
-
- /*
- * SMCA sets the Deferred Error Interrupt type per bank.
- *
- * MCA_CONFIG[DeferredIntTypeSupported] is bit 5, and tells us
- * if the DeferredIntType bit field is available.
- *
- * MCA_CONFIG[DeferredIntType] is bits [38:37] ([6:5] in the
- * high portion of the MSR). OS should set this to 0x1 to enable
- * APIC based interrupt. First, check that no interrupt has been
- * set.
- */
- if ((smca_low & BIT(5)) && !((smca_high >> 5) & 0x3))
- smca_high |= BIT(5);
-
- wrmsr(smca_addr, smca_low, smca_high);
- }
-
/* Gather LVT offset for thresholding: */
if (rdmsr_safe(MSR_CU_DEF_ERR, &smca_low, &smca_high))
goto out;
@@ -530,7 +513,7 @@ void mce_amd_feature_init(struct cpuinfo_x86 *c)
for (bank = 0; bank < mca_cfg.banks; ++bank) {
if (mce_flags.smca)
- get_smca_bank_info(bank);
+ smca_configure(bank, cpu);
for (block = 0; block < NR_BLOCKS; ++block) {
address = get_block_address(cpu, address, low, high, bank, block);
@@ -755,37 +738,19 @@ out_err:
}
EXPORT_SYMBOL_GPL(umc_normaddr_to_sysaddr);
-static void
-__log_error(unsigned int bank, bool deferred_err, bool threshold_err, u64 misc)
+static void __log_error(unsigned int bank, u64 status, u64 addr, u64 misc)
{
- u32 msr_status = msr_ops.status(bank);
- u32 msr_addr = msr_ops.addr(bank);
struct mce m;
- u64 status;
-
- WARN_ON_ONCE(deferred_err && threshold_err);
-
- if (deferred_err && mce_flags.smca) {
- msr_status = MSR_AMD64_SMCA_MCx_DESTAT(bank);
- msr_addr = MSR_AMD64_SMCA_MCx_DEADDR(bank);
- }
-
- rdmsrl(msr_status, status);
-
- if (!(status & MCI_STATUS_VAL))
- return;
mce_setup(&m);
m.status = status;
+ m.misc = misc;
m.bank = bank;
m.tsc = rdtsc();
- if (threshold_err)
- m.misc = misc;
-
if (m.status & MCI_STATUS_ADDRV) {
- rdmsrl(msr_addr, m.addr);
+ m.addr = addr;
/*
* Extract [55:<lsb>] where lsb is the least significant
@@ -806,110 +771,135 @@ __log_error(unsigned int bank, bool deferred_err, bool threshold_err, u64 misc)
}
mce_log(&m);
-
- wrmsrl(msr_status, 0);
}
-static inline void __smp_deferred_error_interrupt(void)
+asmlinkage __visible void __irq_entry smp_deferred_error_interrupt(void)
{
+ entering_irq();
+ trace_deferred_error_apic_entry(DEFERRED_ERROR_VECTOR);
inc_irq_stat(irq_deferred_error_count);
deferred_error_int_vector();
+ trace_deferred_error_apic_exit(DEFERRED_ERROR_VECTOR);
+ exiting_ack_irq();
}
-asmlinkage __visible void __irq_entry smp_deferred_error_interrupt(void)
+/*
+ * Returns true if the logged error is deferred. False, otherwise.
+ */
+static inline bool
+_log_error_bank(unsigned int bank, u32 msr_stat, u32 msr_addr, u64 misc)
{
- entering_irq();
- __smp_deferred_error_interrupt();
- exiting_ack_irq();
+ u64 status, addr = 0;
+
+ rdmsrl(msr_stat, status);
+ if (!(status & MCI_STATUS_VAL))
+ return false;
+
+ if (status & MCI_STATUS_ADDRV)
+ rdmsrl(msr_addr, addr);
+
+ __log_error(bank, status, addr, misc);
+
+ wrmsrl(msr_stat, 0);
+
+ return status & MCI_STATUS_DEFERRED;
}
-asmlinkage __visible void __irq_entry smp_trace_deferred_error_interrupt(void)
+/*
+ * We have three scenarios for checking for Deferred errors:
+ *
+ * 1) Non-SMCA systems check MCA_STATUS and log error if found.
+ * 2) SMCA systems check MCA_STATUS. If error is found then log it and also
+ * clear MCA_DESTAT.
+ * 3) SMCA systems check MCA_DESTAT, if error was not found in MCA_STATUS, and
+ * log it.
+ */
+static void log_error_deferred(unsigned int bank)
{
- entering_irq();
- trace_deferred_error_apic_entry(DEFERRED_ERROR_VECTOR);
- __smp_deferred_error_interrupt();
- trace_deferred_error_apic_exit(DEFERRED_ERROR_VECTOR);
- exiting_ack_irq();
+ bool defrd;
+
+ defrd = _log_error_bank(bank, msr_ops.status(bank),
+ msr_ops.addr(bank), 0);
+
+ if (!mce_flags.smca)
+ return;
+
+ /* Clear MCA_DESTAT if we logged the deferred error from MCA_STATUS. */
+ if (defrd) {
+ wrmsrl(MSR_AMD64_SMCA_MCx_DESTAT(bank), 0);
+ return;
+ }
+
+ /*
+ * Only deferred errors are logged in MCA_DE{STAT,ADDR} so just check
+ * for a valid error.
+ */
+ _log_error_bank(bank, MSR_AMD64_SMCA_MCx_DESTAT(bank),
+ MSR_AMD64_SMCA_MCx_DEADDR(bank), 0);
}
/* APIC interrupt handler for deferred errors */
static void amd_deferred_error_interrupt(void)
{
unsigned int bank;
- u32 msr_status;
- u64 status;
- for (bank = 0; bank < mca_cfg.banks; ++bank) {
- msr_status = (mce_flags.smca) ? MSR_AMD64_SMCA_MCx_DESTAT(bank)
- : msr_ops.status(bank);
+ for (bank = 0; bank < mca_cfg.banks; ++bank)
+ log_error_deferred(bank);
+}
- rdmsrl(msr_status, status);
+static void log_error_thresholding(unsigned int bank, u64 misc)
+{
+ _log_error_bank(bank, msr_ops.status(bank), msr_ops.addr(bank), misc);
+}
- if (!(status & MCI_STATUS_VAL) ||
- !(status & MCI_STATUS_DEFERRED))
- continue;
+static void log_and_reset_block(struct threshold_block *block)
+{
+ struct thresh_restart tr;
+ u32 low = 0, high = 0;
- __log_error(bank, true, false, 0);
- break;
- }
-}
+ if (!block)
+ return;
-/*
- * APIC Interrupt Handler
- */
+ if (rdmsr_safe(block->address, &low, &high))
+ return;
+
+ if (!(high & MASK_OVERFLOW_HI))
+ return;
+
+ /* Log the MCE which caused the threshold event. */
+ log_error_thresholding(block->bank, ((u64)high << 32) | low);
+
+ /* Reset threshold block after logging error. */
+ memset(&tr, 0, sizeof(tr));
+ tr.b = block;
+ threshold_restart_bank(&tr);
+}
/*
- * threshold interrupt handler will service THRESHOLD_APIC_VECTOR.
- * the interrupt goes off when error_count reaches threshold_limit.
- * the handler will simply log mcelog w/ software defined bank number.
+ * Threshold interrupt handler will service THRESHOLD_APIC_VECTOR. The interrupt
+ * goes off when error_count reaches threshold_limit.
*/
-
static void amd_threshold_interrupt(void)
{
- u32 low = 0, high = 0, address = 0;
- unsigned int bank, block, cpu = smp_processor_id();
- struct thresh_restart tr;
+ struct threshold_block *first_block = NULL, *block = NULL, *tmp = NULL;
+ unsigned int bank, cpu = smp_processor_id();
- /* assume first bank caused it */
for (bank = 0; bank < mca_cfg.banks; ++bank) {
if (!(per_cpu(bank_map, cpu) & (1 << bank)))
continue;
- for (block = 0; block < NR_BLOCKS; ++block) {
- address = get_block_address(cpu, address, low, high, bank, block);
- if (!address)
- break;
- if (rdmsr_safe(address, &low, &high))
- break;
-
- if (!(high & MASK_VALID_HI)) {
- if (block)
- continue;
- else
- break;
- }
-
- if (!(high & MASK_CNTP_HI) ||
- (high & MASK_LOCKED_HI))
- continue;
+ first_block = per_cpu(threshold_banks, cpu)[bank]->blocks;
+ if (!first_block)
+ continue;
- /*
- * Log the machine check that caused the threshold
- * event.
- */
- if (high & MASK_OVERFLOW_HI)
- goto log;
- }
+ /*
+ * The first block is also the head of the list. Check it first
+ * before iterating over the rest.
+ */
+ log_and_reset_block(first_block);
+ list_for_each_entry_safe(block, tmp, &first_block->miscj, miscj)
+ log_and_reset_block(block);
}
- return;
-
-log:
- __log_error(bank, false, true, ((u64)high << 32) | low);
-
- /* Reset threshold block after logging error. */
- memset(&tr, 0, sizeof(tr));
- tr.b = &per_cpu(threshold_banks, cpu)[bank]->blocks[block];
- threshold_restart_bank(&tr);
}
/*
@@ -1202,7 +1192,7 @@ static int threshold_create_bank(unsigned int cpu, unsigned int bank)
goto out;
per_cpu(threshold_banks, cpu)[bank] = b;
- atomic_inc(&b->cpus);
+ refcount_inc(&b->cpus);
err = __threshold_add_blocks(b);
@@ -1225,7 +1215,7 @@ static int threshold_create_bank(unsigned int cpu, unsigned int bank)
per_cpu(threshold_banks, cpu)[bank] = b;
if (is_shared_bank(bank)) {
- atomic_set(&b->cpus, 1);
+ refcount_set(&b->cpus, 1);
/* nb is already initialized, see above */
if (nb) {
@@ -1289,7 +1279,7 @@ static void threshold_remove_bank(unsigned int cpu, int bank)
goto free_out;
if (is_shared_bank(bank)) {
- if (!atomic_dec_and_test(&b->cpus)) {
+ if (!refcount_dec_and_test(&b->cpus)) {
__threshold_remove_blocks(b);
per_cpu(threshold_banks, cpu)[bank] = NULL;
return;
diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c
index d7cc190ae457..2da67b70ba98 100644
--- a/arch/x86/kernel/cpu/mcheck/therm_throt.c
+++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c
@@ -122,7 +122,7 @@ static struct attribute *thermal_throttle_attrs[] = {
NULL
};
-static struct attribute_group thermal_attr_group = {
+static const struct attribute_group thermal_attr_group = {
.attrs = thermal_throttle_attrs,
.name = "thermal_throttle"
};
@@ -390,26 +390,12 @@ static void unexpected_thermal_interrupt(void)
static void (*smp_thermal_vector)(void) = unexpected_thermal_interrupt;
-static inline void __smp_thermal_interrupt(void)
-{
- inc_irq_stat(irq_thermal_count);
- smp_thermal_vector();
-}
-
-asmlinkage __visible void __irq_entry
-smp_thermal_interrupt(struct pt_regs *regs)
-{
- entering_irq();
- __smp_thermal_interrupt();
- exiting_ack_irq();
-}
-
-asmlinkage __visible void __irq_entry
-smp_trace_thermal_interrupt(struct pt_regs *regs)
+asmlinkage __visible void __irq_entry smp_thermal_interrupt(struct pt_regs *r)
{
entering_irq();
trace_thermal_apic_entry(THERMAL_APIC_VECTOR);
- __smp_thermal_interrupt();
+ inc_irq_stat(irq_thermal_count);
+ smp_thermal_vector();
trace_thermal_apic_exit(THERMAL_APIC_VECTOR);
exiting_ack_irq();
}
diff --git a/arch/x86/kernel/cpu/mcheck/threshold.c b/arch/x86/kernel/cpu/mcheck/threshold.c
index bb0e75eed10a..5e7249e42f8f 100644
--- a/arch/x86/kernel/cpu/mcheck/threshold.c
+++ b/arch/x86/kernel/cpu/mcheck/threshold.c
@@ -17,24 +17,12 @@ static void default_threshold_interrupt(void)
void (*mce_threshold_vector)(void) = default_threshold_interrupt;
-static inline void __smp_threshold_interrupt(void)
-{
- inc_irq_stat(irq_threshold_count);
- mce_threshold_vector();
-}
-
asmlinkage __visible void __irq_entry smp_threshold_interrupt(void)
{
entering_irq();
- __smp_threshold_interrupt();
- exiting_ack_irq();
-}
-
-asmlinkage __visible void __irq_entry smp_trace_threshold_interrupt(void)
-{
- entering_irq();
trace_threshold_apic_entry(THRESHOLD_APIC_VECTOR);
- __smp_threshold_interrupt();
+ inc_irq_stat(irq_threshold_count);
+ mce_threshold_vector();
trace_threshold_apic_exit(THRESHOLD_APIC_VECTOR);
exiting_ack_irq();
}
diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c
index e9f4d762aa5b..c6daec4bdba5 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -251,7 +251,7 @@ static bool get_builtin_microcode(struct cpio_data *cp, unsigned int family)
#endif
}
-void __load_ucode_amd(unsigned int cpuid_1_eax, struct cpio_data *ret)
+static void __load_ucode_amd(unsigned int cpuid_1_eax, struct cpio_data *ret)
{
struct ucode_cpu_info *uci;
struct cpio_data cp;
@@ -400,9 +400,12 @@ static void update_cache(struct ucode_patch *new_patch)
list_for_each_entry(p, &microcode_cache, plist) {
if (p->equiv_cpu == new_patch->equiv_cpu) {
- if (p->patch_id >= new_patch->patch_id)
+ if (p->patch_id >= new_patch->patch_id) {
/* we already have the latest patch */
+ kfree(new_patch->data);
+ kfree(new_patch);
return;
+ }
list_replace(&p->plist, &new_patch->plist);
kfree(p->data);
diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c
index e53d3c909840..c4fa4a85d4cb 100644
--- a/arch/x86/kernel/cpu/microcode/core.c
+++ b/arch/x86/kernel/cpu/microcode/core.c
@@ -122,9 +122,6 @@ static bool __init check_loader_disabled_bsp(void)
bool *res = &dis_ucode_ldr;
#endif
- if (!have_cpuid_p())
- return *res;
-
/*
* CPUID(1).ECX[31]: reserved for hypervisor use. This is still not
* completely accurate as xen pv guests don't see that CPUID bit set but
@@ -166,24 +163,36 @@ bool get_builtin_firmware(struct cpio_data *cd, const char *name)
void __init load_ucode_bsp(void)
{
unsigned int cpuid_1_eax;
+ bool intel = true;
- if (check_loader_disabled_bsp())
+ if (!have_cpuid_p())
return;
cpuid_1_eax = native_cpuid_eax(1);
switch (x86_cpuid_vendor()) {
case X86_VENDOR_INTEL:
- if (x86_family(cpuid_1_eax) >= 6)
- load_ucode_intel_bsp();
+ if (x86_family(cpuid_1_eax) < 6)
+ return;
break;
+
case X86_VENDOR_AMD:
- if (x86_family(cpuid_1_eax) >= 0x10)
- load_ucode_amd_bsp(cpuid_1_eax);
+ if (x86_family(cpuid_1_eax) < 0x10)
+ return;
+ intel = false;
break;
+
default:
- break;
+ return;
}
+
+ if (check_loader_disabled_bsp())
+ return;
+
+ if (intel)
+ load_ucode_intel_bsp();
+ else
+ load_ucode_amd_bsp(cpuid_1_eax);
}
static bool check_loader_disabled_ap(void)
@@ -290,6 +299,17 @@ struct cpio_data find_microcode_in_initrd(const char *path, bool use_pa)
return (struct cpio_data){ NULL, 0, "" };
if (initrd_start)
start = initrd_start;
+ } else {
+ /*
+ * The picture with physical addresses is a bit different: we
+ * need to get the *physical* address to which the ramdisk was
+ * relocated, i.e., relocated_ramdisk (not initrd_start) and
+ * since we're running from physical addresses, we need to access
+ * relocated_ramdisk through its *physical* address too.
+ */
+ u64 *rr = (u64 *)__pa_nodebug(&relocated_ramdisk);
+ if (*rr)
+ start = *rr;
}
return find_cpio_data(path, (void *)start, size, NULL);
@@ -550,7 +570,7 @@ static struct attribute *mc_default_attrs[] = {
NULL
};
-static struct attribute_group mc_attr_group = {
+static const struct attribute_group mc_attr_group = {
.attrs = mc_default_attrs,
.name = "microcode",
};
@@ -696,7 +716,7 @@ static struct attribute *cpu_root_microcode_attrs[] = {
NULL
};
-static struct attribute_group cpu_root_microcode_group = {
+static const struct attribute_group cpu_root_microcode_group = {
.name = "microcode",
.attrs = cpu_root_microcode_attrs,
};
diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c
index f522415bf9e5..7dbcb7adf797 100644
--- a/arch/x86/kernel/cpu/microcode/intel.c
+++ b/arch/x86/kernel/cpu/microcode/intel.c
@@ -34,6 +34,7 @@
#include <linux/mm.h>
#include <asm/microcode_intel.h>
+#include <asm/intel-family.h>
#include <asm/processor.h>
#include <asm/tlbflush.h>
#include <asm/setup.h>
@@ -42,7 +43,7 @@
static const char ucode_path[] = "kernel/x86/microcode/GenuineIntel.bin";
/* Current microcode patch used in early patching on the APs. */
-struct microcode_intel *intel_ucode_patch;
+static struct microcode_intel *intel_ucode_patch;
static inline bool cpu_signatures_match(unsigned int s1, unsigned int p1,
unsigned int s2, unsigned int p2)
@@ -146,18 +147,18 @@ static bool microcode_matches(struct microcode_header_intel *mc_header,
return false;
}
-static struct ucode_patch *__alloc_microcode_buf(void *data, unsigned int size)
+static struct ucode_patch *memdup_patch(void *data, unsigned int size)
{
struct ucode_patch *p;
p = kzalloc(sizeof(struct ucode_patch), GFP_KERNEL);
if (!p)
- return ERR_PTR(-ENOMEM);
+ return NULL;
p->data = kmemdup(data, size, GFP_KERNEL);
if (!p->data) {
kfree(p);
- return ERR_PTR(-ENOMEM);
+ return NULL;
}
return p;
@@ -166,7 +167,7 @@ static struct ucode_patch *__alloc_microcode_buf(void *data, unsigned int size)
static void save_microcode_patch(void *data, unsigned int size)
{
struct microcode_header_intel *mc_hdr, *mc_saved_hdr;
- struct ucode_patch *iter, *tmp, *p;
+ struct ucode_patch *iter, *tmp, *p = NULL;
bool prev_found = false;
unsigned int sig, pf;
@@ -183,8 +184,8 @@ static void save_microcode_patch(void *data, unsigned int size)
if (mc_hdr->rev <= mc_saved_hdr->rev)
continue;
- p = __alloc_microcode_buf(data, size);
- if (IS_ERR(p))
+ p = memdup_patch(data, size);
+ if (!p)
pr_err("Error allocating buffer %p\n", data);
else
list_replace(&iter->plist, &p->plist);
@@ -196,12 +197,25 @@ static void save_microcode_patch(void *data, unsigned int size)
* newly found.
*/
if (!prev_found) {
- p = __alloc_microcode_buf(data, size);
- if (IS_ERR(p))
+ p = memdup_patch(data, size);
+ if (!p)
pr_err("Error allocating buffer for %p\n", data);
else
list_add_tail(&p->plist, &microcode_cache);
}
+
+ if (!p)
+ return;
+
+ /*
+ * Save for early loading. On 32-bit, that needs to be a physical
+ * address as the APs are running from physical addresses, before
+ * paging has been enabled.
+ */
+ if (IS_ENABLED(CONFIG_X86_32))
+ intel_ucode_patch = (struct microcode_intel *)__pa_nodebug(p->data);
+ else
+ intel_ucode_patch = p->data;
}
static int microcode_sanity_check(void *mc, int print_err)
@@ -607,6 +621,14 @@ int __init save_microcode_in_initrd_intel(void)
struct ucode_cpu_info uci;
struct cpio_data cp;
+ /*
+ * initrd is going away, clear patch ptr. We will scan the microcode one
+ * last time before jettisoning and save a patch, if found. Then we will
+ * update that pointer too, with a stable patch address to use when
+ * resuming the cores.
+ */
+ intel_ucode_patch = NULL;
+
if (!load_builtin_intel_microcode(&cp))
cp = find_microcode_in_initrd(ucode_path, false);
@@ -619,9 +641,6 @@ int __init save_microcode_in_initrd_intel(void)
show_saved_mc();
- /* initrd is going away, clear patch ptr. */
- intel_ucode_patch = NULL;
-
return 0;
}
@@ -900,6 +919,18 @@ static int get_ucode_fw(void *to, const void *from, size_t n)
return 0;
}
+static bool is_blacklisted(unsigned int cpu)
+{
+ struct cpuinfo_x86 *c = &cpu_data(cpu);
+
+ if (c->x86 == 6 && c->x86_model == INTEL_FAM6_BROADWELL_X) {
+ pr_err_once("late loading on model 79 is disabled.\n");
+ return true;
+ }
+
+ return false;
+}
+
static enum ucode_state request_microcode_fw(int cpu, struct device *device,
bool refresh_fw)
{
@@ -908,6 +939,9 @@ static enum ucode_state request_microcode_fw(int cpu, struct device *device,
const struct firmware *firmware;
enum ucode_state ret;
+ if (is_blacklisted(cpu))
+ return UCODE_NFOUND;
+
sprintf(name, "intel-ucode/%02x-%02x-%02x",
c->x86, c->x86_model, c->x86_mask);
@@ -932,6 +966,9 @@ static int get_ucode_user(void *to, const void *from, size_t n)
static enum ucode_state
request_microcode_user(int cpu, const void __user *buf, size_t size)
{
+ if (is_blacklisted(cpu))
+ return UCODE_NFOUND;
+
return generic_load_microcode(cpu, (void *)buf, size, &get_ucode_user);
}
diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index 04cb8d34ccb8..236324e83a3a 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -59,13 +59,6 @@ void hyperv_vector_handler(struct pt_regs *regs)
void hv_setup_vmbus_irq(void (*handler)(void))
{
vmbus_handler = handler;
- /*
- * Setup the IDT for hypervisor callback. Prevent reallocation
- * at module reload.
- */
- if (!test_bit(HYPERVISOR_CALLBACK_VECTOR, used_vectors))
- alloc_intr_gate(HYPERVISOR_CALLBACK_VECTOR,
- hyperv_callback_vector);
}
void hv_remove_vmbus_irq(void)
@@ -161,6 +154,15 @@ static int hv_nmi_unknown(unsigned int val, struct pt_regs *regs)
}
#endif
+static unsigned long hv_get_tsc_khz(void)
+{
+ unsigned long freq;
+
+ rdmsrl(HV_X64_MSR_TSC_FREQUENCY, freq);
+
+ return freq / 1000;
+}
+
static void __init ms_hyperv_init_platform(void)
{
int hv_host_info_eax;
@@ -175,9 +177,15 @@ static void __init ms_hyperv_init_platform(void)
ms_hyperv.misc_features = cpuid_edx(HYPERV_CPUID_FEATURES);
ms_hyperv.hints = cpuid_eax(HYPERV_CPUID_ENLIGHTMENT_INFO);
- pr_info("HyperV: features 0x%x, hints 0x%x\n",
+ pr_info("Hyper-V: features 0x%x, hints 0x%x\n",
ms_hyperv.features, ms_hyperv.hints);
+ ms_hyperv.max_vp_index = cpuid_eax(HVCPUID_IMPLEMENTATION_LIMITS);
+ ms_hyperv.max_lp_index = cpuid_ebx(HVCPUID_IMPLEMENTATION_LIMITS);
+
+ pr_debug("Hyper-V: max %u virtual processors, %u logical processors\n",
+ ms_hyperv.max_vp_index, ms_hyperv.max_lp_index);
+
/*
* Extract host information.
*/
@@ -193,8 +201,15 @@ static void __init ms_hyperv_init_platform(void)
hv_host_info_edx >> 24, hv_host_info_edx & 0xFFFFFF);
}
+ if (ms_hyperv.features & HV_X64_ACCESS_FREQUENCY_MSRS &&
+ ms_hyperv.misc_features & HV_FEATURE_FREQUENCY_MSRS_AVAILABLE) {
+ x86_platform.calibrate_tsc = hv_get_tsc_khz;
+ x86_platform.calibrate_cpu = hv_get_tsc_khz;
+ }
+
#ifdef CONFIG_X86_LOCAL_APIC
- if (ms_hyperv.features & HV_X64_MSR_APIC_FREQUENCY_AVAILABLE) {
+ if (ms_hyperv.features & HV_X64_ACCESS_FREQUENCY_MSRS &&
+ ms_hyperv.misc_features & HV_FEATURE_FREQUENCY_MSRS_AVAILABLE) {
/*
* Get the APIC frequency.
*/
@@ -203,7 +218,7 @@ static void __init ms_hyperv_init_platform(void)
rdmsrl(HV_X64_MSR_APIC_FREQUENCY, hv_lapic_frequency);
hv_lapic_frequency = div_u64(hv_lapic_frequency, HZ);
lapic_timer_frequency = hv_lapic_frequency;
- pr_info("HyperV: LAPIC Timer Frequency: %#x\n",
+ pr_info("Hyper-V: LAPIC Timer Frequency: %#x\n",
lapic_timer_frequency);
}
@@ -233,11 +248,14 @@ static void __init ms_hyperv_init_platform(void)
* Setup the hook to get control post apic initialization.
*/
x86_platform.apic_post_init = hyperv_init;
+ hyperv_setup_mmu_ops();
+ /* Setup the IDT for hypervisor callback */
+ alloc_intr_gate(HYPERVISOR_CALLBACK_VECTOR, hyperv_callback_vector);
#endif
}
const __refconst struct hypervisor_x86 x86_hyper_ms_hyperv = {
- .name = "Microsoft HyperV",
+ .name = "Microsoft Hyper-V",
.detect = ms_hyperv_platform,
.init_platform = ms_hyperv_init_platform,
};
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index 2bce84d91c2b..40d5a8a75212 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -237,6 +237,18 @@ set_mtrr(unsigned int reg, unsigned long base, unsigned long size, mtrr_type typ
stop_machine(mtrr_rendezvous_handler, &data, cpu_online_mask);
}
+static void set_mtrr_cpuslocked(unsigned int reg, unsigned long base,
+ unsigned long size, mtrr_type type)
+{
+ struct set_mtrr_data data = { .smp_reg = reg,
+ .smp_base = base,
+ .smp_size = size,
+ .smp_type = type
+ };
+
+ stop_machine_cpuslocked(mtrr_rendezvous_handler, &data, cpu_online_mask);
+}
+
static void set_mtrr_from_inactive_cpu(unsigned int reg, unsigned long base,
unsigned long size, mtrr_type type)
{
@@ -370,7 +382,7 @@ int mtrr_add_page(unsigned long base, unsigned long size,
/* Search for an empty MTRR */
i = mtrr_if->get_free_region(base, size, replace);
if (i >= 0) {
- set_mtrr(i, base, size, type);
+ set_mtrr_cpuslocked(i, base, size, type);
if (likely(replace < 0)) {
mtrr_usage_table[i] = 1;
} else {
@@ -378,7 +390,7 @@ int mtrr_add_page(unsigned long base, unsigned long size,
if (increment)
mtrr_usage_table[i]++;
if (unlikely(replace != i)) {
- set_mtrr(replace, 0, 0, 0);
+ set_mtrr_cpuslocked(replace, 0, 0, 0);
mtrr_usage_table[replace] = 0;
}
}
@@ -506,7 +518,7 @@ int mtrr_del_page(int reg, unsigned long base, unsigned long size)
goto out;
}
if (--mtrr_usage_table[reg] < 1)
- set_mtrr(reg, 0, 0, 0);
+ set_mtrr_cpuslocked(reg, 0, 0, 0);
error = reg;
out:
mutex_unlock(&mtrr_mutex);
@@ -807,10 +819,8 @@ void mtrr_save_state(void)
if (!mtrr_enabled())
return;
- get_online_cpus();
first_cpu = cpumask_first(cpu_online_mask);
smp_call_function_single(first_cpu, mtrr_save_fixed_ranges, NULL, 1);
- put_online_cpus();
}
void set_mtrr_aps_delayed_init(void)
diff --git a/arch/x86/kernel/cpu/proc.c b/arch/x86/kernel/cpu/proc.c
index 6df621ae62a7..218f79825b3c 100644
--- a/arch/x86/kernel/cpu/proc.c
+++ b/arch/x86/kernel/cpu/proc.c
@@ -2,7 +2,6 @@
#include <linux/timex.h>
#include <linux/string.h>
#include <linux/seq_file.h>
-#include <linux/cpufreq.h>
/*
* Get CPU information for use by the procfs.
@@ -76,14 +75,9 @@ static int show_cpuinfo(struct seq_file *m, void *v)
if (c->microcode)
seq_printf(m, "microcode\t: 0x%x\n", c->microcode);
- if (cpu_has(c, X86_FEATURE_TSC)) {
- unsigned int freq = cpufreq_quick_get(cpu);
-
- if (!freq)
- freq = cpu_khz;
+ if (cpu_has(c, X86_FEATURE_TSC))
seq_printf(m, "cpu MHz\t\t: %u.%03u\n",
- freq / 1000, (freq % 1000));
- }
+ cpu_khz / 1000, (cpu_khz % 1000));
/* Cache size */
if (c->x86_cache_size >= 0)
diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c
index 23c23508c012..05459ad3db46 100644
--- a/arch/x86/kernel/cpu/scattered.c
+++ b/arch/x86/kernel/cpu/scattered.c
@@ -31,6 +31,7 @@ static const struct cpuid_bit cpuid_bits[] = {
{ X86_FEATURE_HW_PSTATE, CPUID_EDX, 7, 0x80000007, 0 },
{ X86_FEATURE_CPB, CPUID_EDX, 9, 0x80000007, 0 },
{ X86_FEATURE_PROC_FEEDBACK, CPUID_EDX, 11, 0x80000007, 0 },
+ { X86_FEATURE_SME, CPUID_EAX, 0, 0x8000001f, 0 },
{ 0, 0, 0, 0, 0 }
};
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index 22217ece26c8..44404e2307bb 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -457,7 +457,7 @@ static int prepare_elf64_headers(struct crash_elf_data *ced,
bufp += sizeof(Elf64_Phdr);
phdr->p_type = PT_NOTE;
phdr->p_offset = phdr->p_paddr = paddr_vmcoreinfo_note();
- phdr->p_filesz = phdr->p_memsz = sizeof(vmcoreinfo_note);
+ phdr->p_filesz = phdr->p_memsz = VMCOREINFO_NOTE_SIZE;
(ehdr->e_phnum)++;
#ifdef CONFIG_X86_64
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 3fe45f84ced4..cbf1f6ba39a8 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -235,8 +235,7 @@ static void __init dtb_add_ioapic(struct device_node *dn)
ret = of_address_to_resource(dn, 0, &r);
if (ret) {
- printk(KERN_ERR "Can't obtain address from node %s.\n",
- dn->full_name);
+ printk(KERN_ERR "Can't obtain address from device node %pOF.\n", dn);
return;
}
mp_register_ioapic(++ioapic_id, r.start, gsi_top, &cfg);
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index dbce3cca94cb..f13b4c00a5de 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -94,6 +94,9 @@ void show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs,
if (stack_name)
printk("%s <%s>\n", log_lvl, stack_name);
+ if (regs && on_stack(&stack_info, regs, sizeof(*regs)))
+ __show_regs(regs, 0);
+
/*
* Scan the stack, printing any text addresses we find. At the
* same time, follow proper stack frames with the unwinder.
@@ -118,10 +121,8 @@ void show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs,
* Don't print regs->ip again if it was already printed
* by __show_regs() below.
*/
- if (regs && stack == &regs->ip) {
- unwind_next_frame(&state);
- continue;
- }
+ if (regs && stack == &regs->ip)
+ goto next;
if (stack == ret_addr_p)
reliable = 1;
@@ -144,6 +145,7 @@ void show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs,
if (!reliable)
continue;
+next:
/*
* Get the next frame from the unwinder. No need to
* check for an error: if anything goes wrong, the rest
@@ -153,7 +155,7 @@ void show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs,
/* if the frame has entry regs, print them */
regs = unwind_get_entry_regs(&state);
- if (regs)
+ if (regs && on_stack(&stack_info, regs, sizeof(*regs)))
__show_regs(regs, 0);
}
@@ -265,7 +267,7 @@ int __die(const char *str, struct pt_regs *regs, long err)
#ifdef CONFIG_X86_32
if (user_mode(regs)) {
sp = regs->sp;
- ss = regs->ss & 0xffff;
+ ss = regs->ss;
} else {
sp = kernel_stack_pointer(regs);
savesegment(ss, ss);
diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c
index e5f0b40e66d2..4f0481474903 100644
--- a/arch/x86/kernel/dumpstack_32.c
+++ b/arch/x86/kernel/dumpstack_32.c
@@ -37,7 +37,7 @@ static bool in_hardirq_stack(unsigned long *stack, struct stack_info *info)
* This is a software stack, so 'end' can be a valid stack pointer.
* It just means the stack is empty.
*/
- if (stack < begin || stack > end)
+ if (stack <= begin || stack > end)
return false;
info->type = STACK_TYPE_IRQ;
@@ -62,7 +62,7 @@ static bool in_softirq_stack(unsigned long *stack, struct stack_info *info)
* This is a software stack, so 'end' can be a valid stack pointer.
* It just means the stack is empty.
*/
- if (stack < begin || stack > end)
+ if (stack <= begin || stack > end)
return false;
info->type = STACK_TYPE_SOFTIRQ;
diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
index 3e1471d57487..225af4184f06 100644
--- a/arch/x86/kernel/dumpstack_64.c
+++ b/arch/x86/kernel/dumpstack_64.c
@@ -55,7 +55,7 @@ static bool in_exception_stack(unsigned long *stack, struct stack_info *info)
begin = end - (exception_stack_sizes[k] / sizeof(long));
regs = (struct pt_regs *)end - 1;
- if (stack < begin || stack >= end)
+ if (stack <= begin || stack >= end)
continue;
info->type = STACK_TYPE_EXCEPTION + k;
@@ -78,7 +78,7 @@ static bool in_irq_stack(unsigned long *stack, struct stack_info *info)
* This is a software stack, so 'end' can be a valid stack pointer.
* It just means the stack is empty.
*/
- if (stack < begin || stack > end)
+ if (stack <= begin || stack > end)
return false;
info->type = STACK_TYPE_IRQ;
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index d78a586ba8dc..71c11ad5643e 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -20,10 +20,12 @@
#include <asm/setup.h>
/*
- * We organize the E820 table into two main data structures:
+ * We organize the E820 table into three main data structures:
*
* - 'e820_table_firmware': the original firmware version passed to us by the
- * bootloader - not modified by the kernel. We use this to:
+ * bootloader - not modified by the kernel. It is composed of two parts:
+ * the first 128 E820 memory entries in boot_params.e820_table and the remaining
+ * (if any) entries of the SETUP_E820_EXT nodes. We use this to:
*
* - inform the user about the firmware's notion of memory layout
* via /sys/firmware/memmap
@@ -31,6 +33,14 @@
* - the hibernation code uses it to generate a kernel-independent MD5
* fingerprint of the physical memory layout of a system.
*
+ * - 'e820_table_kexec': a slightly modified (by the kernel) firmware version
+ * passed to us by the bootloader - the major difference between
+ * e820_table_firmware[] and this one is that, the latter marks the setup_data
+ * list created by the EFI boot stub as reserved, so that kexec can reuse the
+ * setup_data information in the second kernel. Besides, e820_table_kexec[]
+ * might also be modified by the kexec itself to fake a mptable.
+ * We use this to:
+ *
* - kexec, which is a bootloader in disguise, uses the original E820
* layout to pass to the kexec-ed kernel. This way the original kernel
* can have a restricted E820 map while the kexec()-ed kexec-kernel
@@ -46,9 +56,11 @@
* specific memory layout data during early bootup.
*/
static struct e820_table e820_table_init __initdata;
+static struct e820_table e820_table_kexec_init __initdata;
static struct e820_table e820_table_firmware_init __initdata;
struct e820_table *e820_table __refdata = &e820_table_init;
+struct e820_table *e820_table_kexec __refdata = &e820_table_kexec_init;
struct e820_table *e820_table_firmware __refdata = &e820_table_firmware_init;
/* For PCI or other memory-mapped resources */
@@ -84,7 +96,8 @@ EXPORT_SYMBOL_GPL(e820__mapped_any);
* Note: this function only works correctly once the E820 table is sorted and
* not-overlapping (at least for the range specified), which is the case normally.
*/
-bool __init e820__mapped_all(u64 start, u64 end, enum e820_type type)
+static struct e820_entry *__e820__mapped_all(u64 start, u64 end,
+ enum e820_type type)
{
int i;
@@ -110,9 +123,28 @@ bool __init e820__mapped_all(u64 start, u64 end, enum e820_type type)
* coverage of the desired range exists:
*/
if (start >= end)
- return 1;
+ return entry;
}
- return 0;
+
+ return NULL;
+}
+
+/*
+ * This function checks if the entire range <start,end> is mapped with type.
+ */
+bool __init e820__mapped_all(u64 start, u64 end, enum e820_type type)
+{
+ return __e820__mapped_all(start, end, type);
+}
+
+/*
+ * This function returns the type associated with the range <start,end>.
+ */
+int e820__get_entry_type(u64 start, u64 end)
+{
+ struct e820_entry *entry = __e820__mapped_all(start, end, 0);
+
+ return entry ? entry->type : -EINVAL;
}
/*
@@ -470,9 +502,9 @@ u64 __init e820__range_update(u64 start, u64 size, enum e820_type old_type, enum
return __e820__range_update(e820_table, start, size, old_type, new_type);
}
-static u64 __init e820__range_update_firmware(u64 start, u64 size, enum e820_type old_type, enum e820_type new_type)
+static u64 __init e820__range_update_kexec(u64 start, u64 size, enum e820_type old_type, enum e820_type new_type)
{
- return __e820__range_update(e820_table_firmware, start, size, old_type, new_type);
+ return __e820__range_update(e820_table_kexec, start, size, old_type, new_type);
}
/* Remove a range of memory from the E820 table: */
@@ -546,9 +578,9 @@ void __init e820__update_table_print(void)
e820__print_table("modified");
}
-static void __init e820__update_table_firmware(void)
+static void __init e820__update_table_kexec(void)
{
- e820__update_table(e820_table_firmware);
+ e820__update_table(e820_table_kexec);
}
#define MAX_GAP_END 0x100000000ull
@@ -623,7 +655,7 @@ __init void e820__setup_pci_gap(void)
/*
* Called late during init, in free_initmem().
*
- * Initial e820_table and e820_table_firmware are largish __initdata arrays.
+ * Initial e820_table and e820_table_kexec are largish __initdata arrays.
*
* Copy them to a (usually much smaller) dynamically allocated area that is
* sized precisely after the number of e820 entries.
@@ -643,6 +675,12 @@ __init void e820__reallocate_tables(void)
memcpy(n, e820_table, size);
e820_table = n;
+ size = offsetof(struct e820_table, entries) + sizeof(struct e820_entry)*e820_table_kexec->nr_entries;
+ n = kmalloc(size, GFP_KERNEL);
+ BUG_ON(!n);
+ memcpy(n, e820_table_kexec, size);
+ e820_table_kexec = n;
+
size = offsetof(struct e820_table, entries) + sizeof(struct e820_entry)*e820_table_firmware->nr_entries;
n = kmalloc(size, GFP_KERNEL);
BUG_ON(!n);
@@ -669,6 +707,9 @@ void __init e820__memory_setup_extended(u64 phys_addr, u32 data_len)
__append_e820_table(extmap, entries);
e820__update_table(e820_table);
+ memcpy(e820_table_kexec, e820_table, sizeof(*e820_table_kexec));
+ memcpy(e820_table_firmware, e820_table, sizeof(*e820_table_firmware));
+
early_memunmap(sdata, data_len);
pr_info("e820: extended physical RAM map:\n");
e820__print_table("extended");
@@ -727,7 +768,7 @@ core_initcall(e820__register_nvs_regions);
/*
* Allocate the requested number of bytes with the requsted alignment
* and return (the physical address) to the caller. Also register this
- * range in the 'firmware' E820 table as a reserved range.
+ * range in the 'kexec' E820 table as a reserved range.
*
* This allows kexec to fake a new mptable, as if it came from the real
* system.
@@ -738,9 +779,9 @@ u64 __init e820__memblock_alloc_reserved(u64 size, u64 align)
addr = __memblock_alloc_base(size, align, MEMBLOCK_ALLOC_ACCESSIBLE);
if (addr) {
- e820__range_update_firmware(addr, size, E820_TYPE_RAM, E820_TYPE_RESERVED);
- pr_info("e820: update e820_table_firmware for e820__memblock_alloc_reserved()\n");
- e820__update_table_firmware();
+ e820__range_update_kexec(addr, size, E820_TYPE_RAM, E820_TYPE_RESERVED);
+ pr_info("e820: update e820_table_kexec for e820__memblock_alloc_reserved()\n");
+ e820__update_table_kexec();
}
return addr;
@@ -923,13 +964,13 @@ void __init e820__reserve_setup_data(void)
while (pa_data) {
data = early_memremap(pa_data, sizeof(*data));
e820__range_update(pa_data, sizeof(*data)+data->len, E820_TYPE_RAM, E820_TYPE_RESERVED_KERN);
+ e820__range_update_kexec(pa_data, sizeof(*data)+data->len, E820_TYPE_RAM, E820_TYPE_RESERVED_KERN);
pa_data = data->next;
early_memunmap(data, sizeof(*data));
}
e820__update_table(e820_table);
-
- memcpy(e820_table_firmware, e820_table, sizeof(*e820_table_firmware));
+ e820__update_table(e820_table_kexec);
pr_info("extended physical RAM map:\n");
e820__print_table("reserve setup_data");
@@ -1062,6 +1103,7 @@ void __init e820__reserve_resources(void)
res++;
}
+ /* Expose the bootloader-provided memory layout to the sysfs. */
for (i = 0; i < e820_table_firmware->nr_entries; i++) {
struct e820_entry *entry = e820_table_firmware->entries + i;
@@ -1175,6 +1217,7 @@ void __init e820__memory_setup(void)
who = x86_init.resources.memory_setup();
+ memcpy(e820_table_kexec, e820_table, sizeof(*e820_table_kexec));
memcpy(e820_table_firmware, e820_table, sizeof(*e820_table_firmware));
pr_info("e820: BIOS-provided physical RAM map:\n");
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index d907c3d8633f..927abeaf63e2 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -12,10 +12,10 @@
#include <linux/pci.h>
#include <linux/acpi.h>
#include <linux/delay.h>
-#include <linux/dmi.h>
#include <linux/pci_ids.h>
#include <linux/bcma/bcma.h>
#include <linux/bcma/bcma_regs.h>
+#include <linux/platform_data/x86/apple.h>
#include <drm/i915_drm.h>
#include <asm/pci-direct.h>
#include <asm/dma.h>
@@ -527,6 +527,7 @@ static const struct pci_device_id intel_early_ids[] __initconst = {
INTEL_BXT_IDS(&gen9_early_ops),
INTEL_KBL_IDS(&gen9_early_ops),
INTEL_GLK_IDS(&gen9_early_ops),
+ INTEL_CNL_IDS(&gen9_early_ops),
};
static void __init
@@ -593,7 +594,7 @@ static void __init apple_airport_reset(int bus, int slot, int func)
u64 addr;
int i;
- if (!dmi_match(DMI_SYS_VENDOR, "Apple Inc."))
+ if (!x86_apple_machine)
return;
/* Card may have been put into PCI_D3hot by grub quirk */
diff --git a/arch/x86/kernel/eisa.c b/arch/x86/kernel/eisa.c
new file mode 100644
index 000000000000..f260e452e4f8
--- /dev/null
+++ b/arch/x86/kernel/eisa.c
@@ -0,0 +1,19 @@
+/*
+ * EISA specific code
+ *
+ * This file is licensed under the GPL V2
+ */
+#include <linux/ioport.h>
+#include <linux/eisa.h>
+#include <linux/io.h>
+
+static __init int eisa_bus_probe(void)
+{
+ void __iomem *p = ioremap(0x0FFFD9, 4);
+
+ if (readl(p) == 'E' + ('I'<<8) + ('S'<<16) + ('A'<<24))
+ EISA_bus = 1;
+ iounmap(p);
+ return 0;
+}
+subsys_initcall(eisa_bus_probe);
diff --git a/arch/x86/kernel/espfix_64.c b/arch/x86/kernel/espfix_64.c
index 8e598a1ad986..9c4e7ba6870c 100644
--- a/arch/x86/kernel/espfix_64.c
+++ b/arch/x86/kernel/espfix_64.c
@@ -125,7 +125,7 @@ void __init init_espfix_bsp(void)
p4d_t *p4d;
/* Install the espfix pud into the kernel page directory */
- pgd = &init_level4_pgt[pgd_index(ESPFIX_BASE_ADDR)];
+ pgd = &init_top_pgt[pgd_index(ESPFIX_BASE_ADDR)];
p4d = p4d_alloc(&init_mm, pgd, ESPFIX_BASE_ADDR);
p4d_populate(&init_mm, p4d, espfix_pud_page);
@@ -195,7 +195,7 @@ void init_espfix_ap(int cpu)
pte_p = pte_offset_kernel(&pmd, addr);
stack_page = page_address(alloc_pages_node(node, GFP_KERNEL, 0));
- pte = __pte(__pa(stack_page) | (__PAGE_KERNEL_RO & ptemask));
+ pte = __pte(__pa(stack_page) | ((__PAGE_KERNEL_RO | _PAGE_ENC) & ptemask));
for (n = 0; n < ESPFIX_PTE_CLONES; n++)
set_pte(&pte_p[n*PTE_STRIDE], pte);
diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c
index e1114f070c2d..f92a6593de1e 100644
--- a/arch/x86/kernel/fpu/core.c
+++ b/arch/x86/kernel/fpu/core.c
@@ -100,7 +100,7 @@ void __kernel_fpu_begin(void)
kernel_fpu_disable();
- if (fpu->fpregs_active) {
+ if (fpu->initialized) {
/*
* Ignore return value -- we don't care if reg state
* is clobbered.
@@ -116,7 +116,7 @@ void __kernel_fpu_end(void)
{
struct fpu *fpu = &current->thread.fpu;
- if (fpu->fpregs_active)
+ if (fpu->initialized)
copy_kernel_to_fpregs(&fpu->state);
kernel_fpu_enable();
@@ -148,7 +148,7 @@ void fpu__save(struct fpu *fpu)
preempt_disable();
trace_x86_fpu_before_save(fpu);
- if (fpu->fpregs_active) {
+ if (fpu->initialized) {
if (!copy_fpregs_to_fpstate(fpu)) {
copy_kernel_to_fpregs(&fpu->state);
}
@@ -189,10 +189,9 @@ EXPORT_SYMBOL_GPL(fpstate_init);
int fpu__copy(struct fpu *dst_fpu, struct fpu *src_fpu)
{
- dst_fpu->fpregs_active = 0;
dst_fpu->last_cpu = -1;
- if (!src_fpu->fpstate_active || !static_cpu_has(X86_FEATURE_FPU))
+ if (!src_fpu->initialized || !static_cpu_has(X86_FEATURE_FPU))
return 0;
WARN_ON_FPU(src_fpu != &current->thread.fpu);
@@ -206,26 +205,14 @@ int fpu__copy(struct fpu *dst_fpu, struct fpu *src_fpu)
/*
* Save current FPU registers directly into the child
* FPU context, without any memory-to-memory copying.
- * In lazy mode, if the FPU context isn't loaded into
- * fpregs, CR0.TS will be set and do_device_not_available
- * will load the FPU context.
*
- * We have to do all this with preemption disabled,
- * mostly because of the FNSAVE case, because in that
- * case we must not allow preemption in the window
- * between the FNSAVE and us marking the context lazy.
- *
- * It shouldn't be an issue as even FNSAVE is plenty
- * fast in terms of critical section length.
+ * ( The function 'fails' in the FNSAVE case, which destroys
+ * register contents so we have to copy them back. )
*/
- preempt_disable();
if (!copy_fpregs_to_fpstate(dst_fpu)) {
- memcpy(&src_fpu->state, &dst_fpu->state,
- fpu_kernel_xstate_size);
-
+ memcpy(&src_fpu->state, &dst_fpu->state, fpu_kernel_xstate_size);
copy_kernel_to_fpregs(&src_fpu->state);
}
- preempt_enable();
trace_x86_fpu_copy_src(src_fpu);
trace_x86_fpu_copy_dst(dst_fpu);
@@ -237,45 +224,48 @@ int fpu__copy(struct fpu *dst_fpu, struct fpu *src_fpu)
* Activate the current task's in-memory FPU context,
* if it has not been used before:
*/
-void fpu__activate_curr(struct fpu *fpu)
+void fpu__initialize(struct fpu *fpu)
{
WARN_ON_FPU(fpu != &current->thread.fpu);
- if (!fpu->fpstate_active) {
+ if (!fpu->initialized) {
fpstate_init(&fpu->state);
trace_x86_fpu_init_state(fpu);
trace_x86_fpu_activate_state(fpu);
/* Safe to do for the current task: */
- fpu->fpstate_active = 1;
+ fpu->initialized = 1;
}
}
-EXPORT_SYMBOL_GPL(fpu__activate_curr);
+EXPORT_SYMBOL_GPL(fpu__initialize);
/*
* This function must be called before we read a task's fpstate.
*
- * If the task has not used the FPU before then initialize its
- * fpstate.
+ * There's two cases where this gets called:
+ *
+ * - for the current task (when coredumping), in which case we have
+ * to save the latest FPU registers into the fpstate,
+ *
+ * - or it's called for stopped tasks (ptrace), in which case the
+ * registers were already saved by the context-switch code when
+ * the task scheduled out - we only have to initialize the registers
+ * if they've never been initialized.
*
* If the task has used the FPU before then save it.
*/
-void fpu__activate_fpstate_read(struct fpu *fpu)
+void fpu__prepare_read(struct fpu *fpu)
{
- /*
- * If fpregs are active (in the current CPU), then
- * copy them to the fpstate:
- */
- if (fpu->fpregs_active) {
+ if (fpu == &current->thread.fpu) {
fpu__save(fpu);
} else {
- if (!fpu->fpstate_active) {
+ if (!fpu->initialized) {
fpstate_init(&fpu->state);
trace_x86_fpu_init_state(fpu);
trace_x86_fpu_activate_state(fpu);
/* Safe to do for current and for stopped child tasks: */
- fpu->fpstate_active = 1;
+ fpu->initialized = 1;
}
}
}
@@ -283,17 +273,17 @@ void fpu__activate_fpstate_read(struct fpu *fpu)
/*
* This function must be called before we write a task's fpstate.
*
- * If the task has used the FPU before then unlazy it.
+ * If the task has used the FPU before then invalidate any cached FPU registers.
* If the task has not used the FPU before then initialize its fpstate.
*
* After this function call, after registers in the fpstate are
* modified and the child task has woken up, the child task will
* restore the modified FPU state from the modified context. If we
- * didn't clear its lazy status here then the lazy in-registers
+ * didn't clear its cached status here then the cached in-registers
* state pending on its former CPU could be restored, corrupting
* the modifications.
*/
-void fpu__activate_fpstate_write(struct fpu *fpu)
+void fpu__prepare_write(struct fpu *fpu)
{
/*
* Only stopped child tasks can be used to modify the FPU
@@ -301,8 +291,8 @@ void fpu__activate_fpstate_write(struct fpu *fpu)
*/
WARN_ON_FPU(fpu == &current->thread.fpu);
- if (fpu->fpstate_active) {
- /* Invalidate any lazy state: */
+ if (fpu->initialized) {
+ /* Invalidate any cached state: */
__fpu_invalidate_fpregs_state(fpu);
} else {
fpstate_init(&fpu->state);
@@ -310,74 +300,11 @@ void fpu__activate_fpstate_write(struct fpu *fpu)
trace_x86_fpu_activate_state(fpu);
/* Safe to do for stopped child tasks: */
- fpu->fpstate_active = 1;
+ fpu->initialized = 1;
}
}
/*
- * This function must be called before we write the current
- * task's fpstate.
- *
- * This call gets the current FPU register state and moves
- * it in to the 'fpstate'. Preemption is disabled so that
- * no writes to the 'fpstate' can occur from context
- * swiches.
- *
- * Must be followed by a fpu__current_fpstate_write_end().
- */
-void fpu__current_fpstate_write_begin(void)
-{
- struct fpu *fpu = &current->thread.fpu;
-
- /*
- * Ensure that the context-switching code does not write
- * over the fpstate while we are doing our update.
- */
- preempt_disable();
-
- /*
- * Move the fpregs in to the fpu's 'fpstate'.
- */
- fpu__activate_fpstate_read(fpu);
-
- /*
- * The caller is about to write to 'fpu'. Ensure that no
- * CPU thinks that its fpregs match the fpstate. This
- * ensures we will not be lazy and skip a XRSTOR in the
- * future.
- */
- __fpu_invalidate_fpregs_state(fpu);
-}
-
-/*
- * This function must be paired with fpu__current_fpstate_write_begin()
- *
- * This will ensure that the modified fpstate gets placed back in
- * the fpregs if necessary.
- *
- * Note: This function may be called whether or not an _actual_
- * write to the fpstate occurred.
- */
-void fpu__current_fpstate_write_end(void)
-{
- struct fpu *fpu = &current->thread.fpu;
-
- /*
- * 'fpu' now has an updated copy of the state, but the
- * registers may still be out of date. Update them with
- * an XRSTOR if they are active.
- */
- if (fpregs_active())
- copy_kernel_to_fpregs(&fpu->state);
-
- /*
- * Our update is done and the fpregs/fpstate are in sync
- * if necessary. Context switches can happen again.
- */
- preempt_enable();
-}
-
-/*
* 'fpu__restore()' is called to copy FPU registers from
* the FPU fpstate to the live hw registers and to activate
* access to the hardware registers, so that FPU instructions
@@ -389,7 +316,7 @@ void fpu__current_fpstate_write_end(void)
*/
void fpu__restore(struct fpu *fpu)
{
- fpu__activate_curr(fpu);
+ fpu__initialize(fpu);
/* Avoid __kernel_fpu_begin() right after fpregs_activate() */
kernel_fpu_disable();
@@ -414,15 +341,17 @@ void fpu__drop(struct fpu *fpu)
{
preempt_disable();
- if (fpu->fpregs_active) {
- /* Ignore delayed exceptions from user space */
- asm volatile("1: fwait\n"
- "2:\n"
- _ASM_EXTABLE(1b, 2b));
- fpregs_deactivate(fpu);
+ if (fpu == &current->thread.fpu) {
+ if (fpu->initialized) {
+ /* Ignore delayed exceptions from user space */
+ asm volatile("1: fwait\n"
+ "2:\n"
+ _ASM_EXTABLE(1b, 2b));
+ fpregs_deactivate(fpu);
+ }
}
- fpu->fpstate_active = 0;
+ fpu->initialized = 0;
trace_x86_fpu_dropped(fpu);
@@ -462,9 +391,11 @@ void fpu__clear(struct fpu *fpu)
* Make sure fpstate is cleared and initialized.
*/
if (static_cpu_has(X86_FEATURE_FPU)) {
- fpu__activate_curr(fpu);
+ preempt_disable();
+ fpu__initialize(fpu);
user_fpu_begin();
copy_init_fpstate_to_fpregs();
+ preempt_enable();
}
}
diff --git a/arch/x86/kernel/fpu/init.c b/arch/x86/kernel/fpu/init.c
index d5d44c452624..7affb7e3d9a5 100644
--- a/arch/x86/kernel/fpu/init.c
+++ b/arch/x86/kernel/fpu/init.c
@@ -240,7 +240,7 @@ static void __init fpu__init_system_ctx_switch(void)
WARN_ON_FPU(!on_boot_cpu);
on_boot_cpu = 0;
- WARN_ON_FPU(current->thread.fpu.fpstate_active);
+ WARN_ON_FPU(current->thread.fpu.initialized);
}
/*
diff --git a/arch/x86/kernel/fpu/regset.c b/arch/x86/kernel/fpu/regset.c
index b188b16841e3..3ea151372389 100644
--- a/arch/x86/kernel/fpu/regset.c
+++ b/arch/x86/kernel/fpu/regset.c
@@ -16,14 +16,14 @@ int regset_fpregs_active(struct task_struct *target, const struct user_regset *r
{
struct fpu *target_fpu = &target->thread.fpu;
- return target_fpu->fpstate_active ? regset->n : 0;
+ return target_fpu->initialized ? regset->n : 0;
}
int regset_xregset_fpregs_active(struct task_struct *target, const struct user_regset *regset)
{
struct fpu *target_fpu = &target->thread.fpu;
- if (boot_cpu_has(X86_FEATURE_FXSR) && target_fpu->fpstate_active)
+ if (boot_cpu_has(X86_FEATURE_FXSR) && target_fpu->initialized)
return regset->n;
else
return 0;
@@ -38,7 +38,7 @@ int xfpregs_get(struct task_struct *target, const struct user_regset *regset,
if (!boot_cpu_has(X86_FEATURE_FXSR))
return -ENODEV;
- fpu__activate_fpstate_read(fpu);
+ fpu__prepare_read(fpu);
fpstate_sanitize_xstate(fpu);
return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
@@ -55,7 +55,7 @@ int xfpregs_set(struct task_struct *target, const struct user_regset *regset,
if (!boot_cpu_has(X86_FEATURE_FXSR))
return -ENODEV;
- fpu__activate_fpstate_write(fpu);
+ fpu__prepare_write(fpu);
fpstate_sanitize_xstate(fpu);
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
@@ -89,10 +89,13 @@ int xstateregs_get(struct task_struct *target, const struct user_regset *regset,
xsave = &fpu->state.xsave;
- fpu__activate_fpstate_read(fpu);
+ fpu__prepare_read(fpu);
if (using_compacted_format()) {
- ret = copyout_from_xsaves(pos, count, kbuf, ubuf, xsave);
+ if (kbuf)
+ ret = copy_xstate_to_kernel(kbuf, xsave, pos, count);
+ else
+ ret = copy_xstate_to_user(ubuf, xsave, pos, count);
} else {
fpstate_sanitize_xstate(fpu);
/*
@@ -129,28 +132,29 @@ int xstateregs_set(struct task_struct *target, const struct user_regset *regset,
xsave = &fpu->state.xsave;
- fpu__activate_fpstate_write(fpu);
+ fpu__prepare_write(fpu);
- if (boot_cpu_has(X86_FEATURE_XSAVES))
- ret = copyin_to_xsaves(kbuf, ubuf, xsave);
- else
+ if (using_compacted_format()) {
+ if (kbuf)
+ ret = copy_kernel_to_xstate(xsave, kbuf);
+ else
+ ret = copy_user_to_xstate(xsave, ubuf);
+ } else {
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, xsave, 0, -1);
-
- /*
- * In case of failure, mark all states as init:
- */
- if (ret)
- fpstate_init(&fpu->state);
+ if (!ret)
+ ret = validate_xstate_header(&xsave->header);
+ }
/*
* mxcsr reserved bits must be masked to zero for security reasons.
*/
xsave->i387.mxcsr &= mxcsr_feature_mask;
- xsave->header.xfeatures &= xfeatures_mask;
+
/*
- * These bits must be zero.
+ * In case of failure, mark all states as init:
*/
- memset(&xsave->header.reserved, 0, 48);
+ if (ret)
+ fpstate_init(&fpu->state);
return ret;
}
@@ -299,7 +303,7 @@ int fpregs_get(struct task_struct *target, const struct user_regset *regset,
struct fpu *fpu = &target->thread.fpu;
struct user_i387_ia32_struct env;
- fpu__activate_fpstate_read(fpu);
+ fpu__prepare_read(fpu);
if (!boot_cpu_has(X86_FEATURE_FPU))
return fpregs_soft_get(target, regset, pos, count, kbuf, ubuf);
@@ -329,7 +333,7 @@ int fpregs_set(struct task_struct *target, const struct user_regset *regset,
struct user_i387_ia32_struct env;
int ret;
- fpu__activate_fpstate_write(fpu);
+ fpu__prepare_write(fpu);
fpstate_sanitize_xstate(fpu);
if (!boot_cpu_has(X86_FEATURE_FPU))
@@ -369,7 +373,7 @@ int dump_fpu(struct pt_regs *regs, struct user_i387_struct *ufpu)
struct fpu *fpu = &tsk->thread.fpu;
int fpvalid;
- fpvalid = fpu->fpstate_active;
+ fpvalid = fpu->initialized;
if (fpvalid)
fpvalid = !fpregs_get(tsk, NULL,
0, sizeof(struct user_i387_ia32_struct),
diff --git a/arch/x86/kernel/fpu/signal.c b/arch/x86/kernel/fpu/signal.c
index 83c23c230b4c..fb639e70048f 100644
--- a/arch/x86/kernel/fpu/signal.c
+++ b/arch/x86/kernel/fpu/signal.c
@@ -155,7 +155,8 @@ static inline int copy_fpregs_to_sigframe(struct xregs_state __user *buf)
*/
int copy_fpstate_to_sigframe(void __user *buf, void __user *buf_fx, int size)
{
- struct xregs_state *xsave = &current->thread.fpu.state.xsave;
+ struct fpu *fpu = &current->thread.fpu;
+ struct xregs_state *xsave = &fpu->state.xsave;
struct task_struct *tsk = current;
int ia32_fxstate = (buf != buf_fx);
@@ -170,13 +171,13 @@ int copy_fpstate_to_sigframe(void __user *buf, void __user *buf_fx, int size)
sizeof(struct user_i387_ia32_struct), NULL,
(struct _fpstate_32 __user *) buf) ? -1 : 1;
- if (fpregs_active() || using_compacted_format()) {
+ if (fpu->initialized || using_compacted_format()) {
/* Save the live register state to the user directly. */
if (copy_fpregs_to_sigframe(buf_fx))
return -1;
/* Update the thread's fxstate to save the fsave header. */
if (ia32_fxstate)
- copy_fxregs_to_kernel(&tsk->thread.fpu);
+ copy_fxregs_to_kernel(fpu);
} else {
/*
* It is a *bug* if kernel uses compacted-format for xsave
@@ -189,7 +190,7 @@ int copy_fpstate_to_sigframe(void __user *buf, void __user *buf_fx, int size)
return -1;
}
- fpstate_sanitize_xstate(&tsk->thread.fpu);
+ fpstate_sanitize_xstate(fpu);
if (__copy_to_user(buf_fx, xsave, fpu_user_xstate_size))
return -1;
}
@@ -213,8 +214,11 @@ sanitize_restored_xstate(struct task_struct *tsk,
struct xstate_header *header = &xsave->header;
if (use_xsave()) {
- /* These bits must be zero. */
- memset(header->reserved, 0, 48);
+ /*
+ * Note: we don't need to zero the reserved bits in the
+ * xstate_header here because we either didn't copy them at all,
+ * or we checked earlier that they aren't set.
+ */
/*
* Init the state that is not present in the memory
@@ -223,7 +227,7 @@ sanitize_restored_xstate(struct task_struct *tsk,
if (fx_only)
header->xfeatures = XFEATURE_MASK_FPSSE;
else
- header->xfeatures &= (xfeatures_mask & xfeatures);
+ header->xfeatures &= xfeatures;
}
if (use_fxsr()) {
@@ -279,7 +283,7 @@ static int __fpu__restore_sig(void __user *buf, void __user *buf_fx, int size)
if (!access_ok(VERIFY_READ, buf, size))
return -EACCES;
- fpu__activate_curr(fpu);
+ fpu__initialize(fpu);
if (!static_cpu_has(X86_FEATURE_FPU))
return fpregs_soft_set(current, NULL,
@@ -307,28 +311,29 @@ static int __fpu__restore_sig(void __user *buf, void __user *buf_fx, int size)
/*
* For 32-bit frames with fxstate, copy the user state to the
* thread's fpu state, reconstruct fxstate from the fsave
- * header. Sanitize the copied state etc.
+ * header. Validate and sanitize the copied state.
*/
struct fpu *fpu = &tsk->thread.fpu;
struct user_i387_ia32_struct env;
int err = 0;
/*
- * Drop the current fpu which clears fpu->fpstate_active. This ensures
+ * Drop the current fpu which clears fpu->initialized. This ensures
* that any context-switch during the copy of the new state,
* avoids the intermediate state from getting restored/saved.
* Thus avoiding the new restored state from getting corrupted.
* We will be ready to restore/save the state only after
- * fpu->fpstate_active is again set.
+ * fpu->initialized is again set.
*/
fpu__drop(fpu);
if (using_compacted_format()) {
- err = copyin_to_xsaves(NULL, buf_fx,
- &fpu->state.xsave);
+ err = copy_user_to_xstate(&fpu->state.xsave, buf_fx);
} else {
- err = __copy_from_user(&fpu->state.xsave,
- buf_fx, state_size);
+ err = __copy_from_user(&fpu->state.xsave, buf_fx, state_size);
+
+ if (!err && state_size > offsetof(struct xregs_state, header))
+ err = validate_xstate_header(&fpu->state.xsave.header);
}
if (err || __copy_from_user(&env, buf, sizeof(env))) {
@@ -339,7 +344,7 @@ static int __fpu__restore_sig(void __user *buf, void __user *buf_fx, int size)
sanitize_restored_xstate(tsk, &env, xfeatures, fx_only);
}
- fpu->fpstate_active = 1;
+ fpu->initialized = 1;
preempt_disable();
fpu__restore(fpu);
preempt_enable();
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c
index c24ac1efb12d..f1d5476c9022 100644
--- a/arch/x86/kernel/fpu/xstate.c
+++ b/arch/x86/kernel/fpu/xstate.c
@@ -483,6 +483,30 @@ int using_compacted_format(void)
return boot_cpu_has(X86_FEATURE_XSAVES);
}
+/* Validate an xstate header supplied by userspace (ptrace or sigreturn) */
+int validate_xstate_header(const struct xstate_header *hdr)
+{
+ /* No unknown or supervisor features may be set */
+ if (hdr->xfeatures & (~xfeatures_mask | XFEATURE_MASK_SUPERVISOR))
+ return -EINVAL;
+
+ /* Userspace must use the uncompacted format */
+ if (hdr->xcomp_bv)
+ return -EINVAL;
+
+ /*
+ * If 'reserved' is shrunken to add a new field, make sure to validate
+ * that new field here!
+ */
+ BUILD_BUG_ON(sizeof(hdr->reserved) != 48);
+
+ /* No reserved bits may be set */
+ if (memchr_inv(hdr->reserved, 0, sizeof(hdr->reserved)))
+ return -EINVAL;
+
+ return 0;
+}
+
static void __xstate_dump_leaves(void)
{
int i;
@@ -867,7 +891,7 @@ const void *get_xsave_field_ptr(int xsave_state)
{
struct fpu *fpu = &current->thread.fpu;
- if (!fpu->fpstate_active)
+ if (!fpu->initialized)
return NULL;
/*
* fpu__save() takes the CPU's xstate registers
@@ -921,38 +945,129 @@ int arch_set_user_pkey_access(struct task_struct *tsk, int pkey,
#endif /* ! CONFIG_ARCH_HAS_PKEYS */
/*
+ * Weird legacy quirk: SSE and YMM states store information in the
+ * MXCSR and MXCSR_FLAGS fields of the FP area. That means if the FP
+ * area is marked as unused in the xfeatures header, we need to copy
+ * MXCSR and MXCSR_FLAGS if either SSE or YMM are in use.
+ */
+static inline bool xfeatures_mxcsr_quirk(u64 xfeatures)
+{
+ if (!(xfeatures & (XFEATURE_MASK_SSE|XFEATURE_MASK_YMM)))
+ return false;
+
+ if (xfeatures & XFEATURE_MASK_FP)
+ return false;
+
+ return true;
+}
+
+/*
* This is similar to user_regset_copyout(), but will not add offset to
* the source data pointer or increment pos, count, kbuf, and ubuf.
*/
-static inline int xstate_copyout(unsigned int pos, unsigned int count,
- void *kbuf, void __user *ubuf,
- const void *data, const int start_pos,
- const int end_pos)
+static inline void
+__copy_xstate_to_kernel(void *kbuf, const void *data,
+ unsigned int offset, unsigned int size, unsigned int size_total)
{
- if ((count == 0) || (pos < start_pos))
- return 0;
+ if (offset < size_total) {
+ unsigned int copy = min(size, size_total - offset);
- if (end_pos < 0 || pos < end_pos) {
- unsigned int copy = (end_pos < 0 ? count : min(count, end_pos - pos));
+ memcpy(kbuf + offset, data, copy);
+ }
+}
- if (kbuf) {
- memcpy(kbuf + pos, data, copy);
- } else {
- if (__copy_to_user(ubuf + pos, data, copy))
- return -EFAULT;
+/*
+ * Convert from kernel XSAVES compacted format to standard format and copy
+ * to a kernel-space ptrace buffer.
+ *
+ * It supports partial copy but pos always starts from zero. This is called
+ * from xstateregs_get() and there we check the CPU has XSAVES.
+ */
+int copy_xstate_to_kernel(void *kbuf, struct xregs_state *xsave, unsigned int offset_start, unsigned int size_total)
+{
+ unsigned int offset, size;
+ struct xstate_header header;
+ int i;
+
+ /*
+ * Currently copy_regset_to_user() starts from pos 0:
+ */
+ if (unlikely(offset_start != 0))
+ return -EFAULT;
+
+ /*
+ * The destination is a ptrace buffer; we put in only user xstates:
+ */
+ memset(&header, 0, sizeof(header));
+ header.xfeatures = xsave->header.xfeatures;
+ header.xfeatures &= ~XFEATURE_MASK_SUPERVISOR;
+
+ /*
+ * Copy xregs_state->header:
+ */
+ offset = offsetof(struct xregs_state, header);
+ size = sizeof(header);
+
+ __copy_xstate_to_kernel(kbuf, &header, offset, size, size_total);
+
+ for (i = 0; i < XFEATURE_MAX; i++) {
+ /*
+ * Copy only in-use xstates:
+ */
+ if ((header.xfeatures >> i) & 1) {
+ void *src = __raw_xsave_addr(xsave, 1 << i);
+
+ offset = xstate_offsets[i];
+ size = xstate_sizes[i];
+
+ /* The next component has to fit fully into the output buffer: */
+ if (offset + size > size_total)
+ break;
+
+ __copy_xstate_to_kernel(kbuf, src, offset, size, size_total);
}
+
+ }
+
+ if (xfeatures_mxcsr_quirk(header.xfeatures)) {
+ offset = offsetof(struct fxregs_state, mxcsr);
+ size = MXCSR_AND_FLAGS_SIZE;
+ __copy_xstate_to_kernel(kbuf, &xsave->i387.mxcsr, offset, size, size_total);
+ }
+
+ /*
+ * Fill xsave->i387.sw_reserved value for ptrace frame:
+ */
+ offset = offsetof(struct fxregs_state, sw_reserved);
+ size = sizeof(xstate_fx_sw_bytes);
+
+ __copy_xstate_to_kernel(kbuf, xstate_fx_sw_bytes, offset, size, size_total);
+
+ return 0;
+}
+
+static inline int
+__copy_xstate_to_user(void __user *ubuf, const void *data, unsigned int offset, unsigned int size, unsigned int size_total)
+{
+ if (!size)
+ return 0;
+
+ if (offset < size_total) {
+ unsigned int copy = min(size, size_total - offset);
+
+ if (__copy_to_user(ubuf + offset, data, copy))
+ return -EFAULT;
}
return 0;
}
/*
* Convert from kernel XSAVES compacted format to standard format and copy
- * to a ptrace buffer. It supports partial copy but pos always starts from
+ * to a user-space buffer. It supports partial copy but pos always starts from
* zero. This is called from xstateregs_get() and there we check the CPU
* has XSAVES.
*/
-int copyout_from_xsaves(unsigned int pos, unsigned int count, void *kbuf,
- void __user *ubuf, struct xregs_state *xsave)
+int copy_xstate_to_user(void __user *ubuf, struct xregs_state *xsave, unsigned int offset_start, unsigned int size_total)
{
unsigned int offset, size;
int ret, i;
@@ -961,7 +1076,7 @@ int copyout_from_xsaves(unsigned int pos, unsigned int count, void *kbuf,
/*
* Currently copy_regset_to_user() starts from pos 0:
*/
- if (unlikely(pos != 0))
+ if (unlikely(offset_start != 0))
return -EFAULT;
/*
@@ -977,8 +1092,7 @@ int copyout_from_xsaves(unsigned int pos, unsigned int count, void *kbuf,
offset = offsetof(struct xregs_state, header);
size = sizeof(header);
- ret = xstate_copyout(offset, size, kbuf, ubuf, &header, 0, count);
-
+ ret = __copy_xstate_to_user(ubuf, &header, offset, size, size_total);
if (ret)
return ret;
@@ -992,25 +1106,30 @@ int copyout_from_xsaves(unsigned int pos, unsigned int count, void *kbuf,
offset = xstate_offsets[i];
size = xstate_sizes[i];
- ret = xstate_copyout(offset, size, kbuf, ubuf, src, 0, count);
+ /* The next component has to fit fully into the output buffer: */
+ if (offset + size > size_total)
+ break;
+ ret = __copy_xstate_to_user(ubuf, src, offset, size, size_total);
if (ret)
return ret;
-
- if (offset + size >= count)
- break;
}
}
+ if (xfeatures_mxcsr_quirk(header.xfeatures)) {
+ offset = offsetof(struct fxregs_state, mxcsr);
+ size = MXCSR_AND_FLAGS_SIZE;
+ __copy_xstate_to_user(ubuf, &xsave->i387.mxcsr, offset, size, size_total);
+ }
+
/*
* Fill xsave->i387.sw_reserved value for ptrace frame:
*/
offset = offsetof(struct fxregs_state, sw_reserved);
size = sizeof(xstate_fx_sw_bytes);
- ret = xstate_copyout(offset, size, kbuf, ubuf, xstate_fx_sw_bytes, 0, count);
-
+ ret = __copy_xstate_to_user(ubuf, xstate_fx_sw_bytes, offset, size, size_total);
if (ret)
return ret;
@@ -1018,55 +1137,98 @@ int copyout_from_xsaves(unsigned int pos, unsigned int count, void *kbuf,
}
/*
- * Convert from a ptrace standard-format buffer to kernel XSAVES format
- * and copy to the target thread. This is called from xstateregs_set() and
- * there we check the CPU has XSAVES and a whole standard-sized buffer
- * exists.
+ * Convert from a ptrace standard-format kernel buffer to kernel XSAVES format
+ * and copy to the target thread. This is called from xstateregs_set().
*/
-int copyin_to_xsaves(const void *kbuf, const void __user *ubuf,
- struct xregs_state *xsave)
+int copy_kernel_to_xstate(struct xregs_state *xsave, const void *kbuf)
{
unsigned int offset, size;
int i;
- u64 xfeatures;
- u64 allowed_features;
+ struct xstate_header hdr;
offset = offsetof(struct xregs_state, header);
- size = sizeof(xfeatures);
+ size = sizeof(hdr);
- if (kbuf) {
- memcpy(&xfeatures, kbuf + offset, size);
- } else {
- if (__copy_from_user(&xfeatures, ubuf + offset, size))
- return -EFAULT;
+ memcpy(&hdr, kbuf + offset, size);
+
+ if (validate_xstate_header(&hdr))
+ return -EINVAL;
+
+ for (i = 0; i < XFEATURE_MAX; i++) {
+ u64 mask = ((u64)1 << i);
+
+ if (hdr.xfeatures & mask) {
+ void *dst = __raw_xsave_addr(xsave, 1 << i);
+
+ offset = xstate_offsets[i];
+ size = xstate_sizes[i];
+
+ memcpy(dst, kbuf + offset, size);
+ }
+ }
+
+ if (xfeatures_mxcsr_quirk(hdr.xfeatures)) {
+ offset = offsetof(struct fxregs_state, mxcsr);
+ size = MXCSR_AND_FLAGS_SIZE;
+ memcpy(&xsave->i387.mxcsr, kbuf + offset, size);
}
/*
- * Reject if the user sets any disabled or supervisor features:
+ * The state that came in from userspace was user-state only.
+ * Mask all the user states out of 'xfeatures':
+ */
+ xsave->header.xfeatures &= XFEATURE_MASK_SUPERVISOR;
+
+ /*
+ * Add back in the features that came in from userspace:
*/
- allowed_features = xfeatures_mask & ~XFEATURE_MASK_SUPERVISOR;
+ xsave->header.xfeatures |= hdr.xfeatures;
- if (xfeatures & ~allowed_features)
+ return 0;
+}
+
+/*
+ * Convert from a ptrace or sigreturn standard-format user-space buffer to
+ * kernel XSAVES format and copy to the target thread. This is called from
+ * xstateregs_set(), as well as potentially from the sigreturn() and
+ * rt_sigreturn() system calls.
+ */
+int copy_user_to_xstate(struct xregs_state *xsave, const void __user *ubuf)
+{
+ unsigned int offset, size;
+ int i;
+ struct xstate_header hdr;
+
+ offset = offsetof(struct xregs_state, header);
+ size = sizeof(hdr);
+
+ if (__copy_from_user(&hdr, ubuf + offset, size))
+ return -EFAULT;
+
+ if (validate_xstate_header(&hdr))
return -EINVAL;
for (i = 0; i < XFEATURE_MAX; i++) {
u64 mask = ((u64)1 << i);
- if (xfeatures & mask) {
+ if (hdr.xfeatures & mask) {
void *dst = __raw_xsave_addr(xsave, 1 << i);
offset = xstate_offsets[i];
size = xstate_sizes[i];
- if (kbuf) {
- memcpy(dst, kbuf + offset, size);
- } else {
- if (__copy_from_user(dst, ubuf + offset, size))
- return -EFAULT;
- }
+ if (__copy_from_user(dst, ubuf + offset, size))
+ return -EFAULT;
}
}
+ if (xfeatures_mxcsr_quirk(hdr.xfeatures)) {
+ offset = offsetof(struct fxregs_state, mxcsr);
+ size = MXCSR_AND_FLAGS_SIZE;
+ if (__copy_from_user(&xsave->i387.mxcsr, ubuf + offset, size))
+ return -EFAULT;
+ }
+
/*
* The state that came in from userspace was user-state only.
* Mask all the user states out of 'xfeatures':
@@ -1076,7 +1238,7 @@ int copyin_to_xsaves(const void *kbuf, const void __user *ubuf,
/*
* Add back in the features that came in from userspace:
*/
- xsave->header.xfeatures |= xfeatures;
+ xsave->header.xfeatures |= hdr.xfeatures;
return 0;
}
diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c
index 538ec012b371..2902ca4d5993 100644
--- a/arch/x86/kernel/head32.c
+++ b/arch/x86/kernel/head32.c
@@ -10,6 +10,7 @@
#include <linux/mm.h>
#include <linux/memblock.h>
+#include <asm/desc.h>
#include <asm/setup.h>
#include <asm/sections.h>
#include <asm/e820/api.h>
@@ -29,7 +30,11 @@ static void __init i386_default_early_setup(void)
asmlinkage __visible void __init i386_start_kernel(void)
{
+ /* Make sure IDT is set up before any exception happens */
+ idt_setup_early_handler();
+
cr4_init_shadow();
+
sanitize_boot_params(&boot_params);
x86_early_init_platform_quirks();
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 43b7002f44fb..bab4fa579450 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -14,6 +14,7 @@
#include <linux/start_kernel.h>
#include <linux/io.h>
#include <linux/memblock.h>
+#include <linux/mem_encrypt.h>
#include <asm/processor.h>
#include <asm/proto.h>
@@ -33,33 +34,170 @@
/*
* Manage page tables very early on.
*/
-extern pgd_t early_level4_pgt[PTRS_PER_PGD];
extern pmd_t early_dynamic_pgts[EARLY_DYNAMIC_PAGE_TABLES][PTRS_PER_PMD];
-static unsigned int __initdata next_early_pgt = 2;
+static unsigned int __initdata next_early_pgt;
pmdval_t early_pmd_flags = __PAGE_KERNEL_LARGE & ~(_PAGE_GLOBAL | _PAGE_NX);
+#define __head __section(.head.text)
+
+static void __head *fixup_pointer(void *ptr, unsigned long physaddr)
+{
+ return ptr - (void *)_text + (void *)physaddr;
+}
+
+unsigned long __head __startup_64(unsigned long physaddr,
+ struct boot_params *bp)
+{
+ unsigned long load_delta, *p;
+ unsigned long pgtable_flags;
+ pgdval_t *pgd;
+ p4dval_t *p4d;
+ pudval_t *pud;
+ pmdval_t *pmd, pmd_entry;
+ int i;
+ unsigned int *next_pgt_ptr;
+
+ /* Is the address too large? */
+ if (physaddr >> MAX_PHYSMEM_BITS)
+ for (;;);
+
+ /*
+ * Compute the delta between the address I am compiled to run at
+ * and the address I am actually running at.
+ */
+ load_delta = physaddr - (unsigned long)(_text - __START_KERNEL_map);
+
+ /* Is the address not 2M aligned? */
+ if (load_delta & ~PMD_PAGE_MASK)
+ for (;;);
+
+ /* Activate Secure Memory Encryption (SME) if supported and enabled */
+ sme_enable(bp);
+
+ /* Include the SME encryption mask in the fixup value */
+ load_delta += sme_get_me_mask();
+
+ /* Fixup the physical addresses in the page table */
+
+ pgd = fixup_pointer(&early_top_pgt, physaddr);
+ pgd[pgd_index(__START_KERNEL_map)] += load_delta;
+
+ if (IS_ENABLED(CONFIG_X86_5LEVEL)) {
+ p4d = fixup_pointer(&level4_kernel_pgt, physaddr);
+ p4d[511] += load_delta;
+ }
+
+ pud = fixup_pointer(&level3_kernel_pgt, physaddr);
+ pud[510] += load_delta;
+ pud[511] += load_delta;
+
+ pmd = fixup_pointer(level2_fixmap_pgt, physaddr);
+ pmd[506] += load_delta;
+
+ /*
+ * Set up the identity mapping for the switchover. These
+ * entries should *NOT* have the global bit set! This also
+ * creates a bunch of nonsense entries but that is fine --
+ * it avoids problems around wraparound.
+ */
+
+ next_pgt_ptr = fixup_pointer(&next_early_pgt, physaddr);
+ pud = fixup_pointer(early_dynamic_pgts[(*next_pgt_ptr)++], physaddr);
+ pmd = fixup_pointer(early_dynamic_pgts[(*next_pgt_ptr)++], physaddr);
+
+ pgtable_flags = _KERNPG_TABLE_NOENC + sme_get_me_mask();
+
+ if (IS_ENABLED(CONFIG_X86_5LEVEL)) {
+ p4d = fixup_pointer(early_dynamic_pgts[next_early_pgt++], physaddr);
+
+ i = (physaddr >> PGDIR_SHIFT) % PTRS_PER_PGD;
+ pgd[i + 0] = (pgdval_t)p4d + pgtable_flags;
+ pgd[i + 1] = (pgdval_t)p4d + pgtable_flags;
+
+ i = (physaddr >> P4D_SHIFT) % PTRS_PER_P4D;
+ p4d[i + 0] = (pgdval_t)pud + pgtable_flags;
+ p4d[i + 1] = (pgdval_t)pud + pgtable_flags;
+ } else {
+ i = (physaddr >> PGDIR_SHIFT) % PTRS_PER_PGD;
+ pgd[i + 0] = (pgdval_t)pud + pgtable_flags;
+ pgd[i + 1] = (pgdval_t)pud + pgtable_flags;
+ }
+
+ i = (physaddr >> PUD_SHIFT) % PTRS_PER_PUD;
+ pud[i + 0] = (pudval_t)pmd + pgtable_flags;
+ pud[i + 1] = (pudval_t)pmd + pgtable_flags;
+
+ pmd_entry = __PAGE_KERNEL_LARGE_EXEC & ~_PAGE_GLOBAL;
+ pmd_entry += sme_get_me_mask();
+ pmd_entry += physaddr;
+
+ for (i = 0; i < DIV_ROUND_UP(_end - _text, PMD_SIZE); i++) {
+ int idx = i + (physaddr >> PMD_SHIFT) % PTRS_PER_PMD;
+ pmd[idx] = pmd_entry + i * PMD_SIZE;
+ }
+
+ /*
+ * Fixup the kernel text+data virtual addresses. Note that
+ * we might write invalid pmds, when the kernel is relocated
+ * cleanup_highmap() fixes this up along with the mappings
+ * beyond _end.
+ */
+
+ pmd = fixup_pointer(level2_kernel_pgt, physaddr);
+ for (i = 0; i < PTRS_PER_PMD; i++) {
+ if (pmd[i] & _PAGE_PRESENT)
+ pmd[i] += load_delta;
+ }
+
+ /*
+ * Fixup phys_base - remove the memory encryption mask to obtain
+ * the true physical address.
+ */
+ p = fixup_pointer(&phys_base, physaddr);
+ *p += load_delta - sme_get_me_mask();
+
+ /* Encrypt the kernel (if SME is active) */
+ sme_encrypt_kernel();
+
+ /*
+ * Return the SME encryption mask (if SME is active) to be used as a
+ * modifier for the initial pgdir entry programmed into CR3.
+ */
+ return sme_get_me_mask();
+}
+
+unsigned long __startup_secondary_64(void)
+{
+ /*
+ * Return the SME encryption mask (if SME is active) to be used as a
+ * modifier for the initial pgdir entry programmed into CR3.
+ */
+ return sme_get_me_mask();
+}
+
/* Wipe all early page tables except for the kernel symbol map */
static void __init reset_early_page_tables(void)
{
- memset(early_level4_pgt, 0, sizeof(pgd_t)*(PTRS_PER_PGD-1));
+ memset(early_top_pgt, 0, sizeof(pgd_t)*(PTRS_PER_PGD-1));
next_early_pgt = 0;
- write_cr3(__pa_nodebug(early_level4_pgt));
+ write_cr3(__sme_pa_nodebug(early_top_pgt));
}
/* Create a new PMD entry */
-int __init early_make_pgtable(unsigned long address)
+int __init __early_make_pgtable(unsigned long address, pmdval_t pmd)
{
unsigned long physaddr = address - __PAGE_OFFSET;
pgdval_t pgd, *pgd_p;
+ p4dval_t p4d, *p4d_p;
pudval_t pud, *pud_p;
- pmdval_t pmd, *pmd_p;
+ pmdval_t *pmd_p;
/* Invalid address or early pgt is done ? */
- if (physaddr >= MAXMEM || read_cr3() != __pa_nodebug(early_level4_pgt))
+ if (physaddr >= MAXMEM || read_cr3_pa() != __pa_nodebug(early_top_pgt))
return -1;
again:
- pgd_p = &early_level4_pgt[pgd_index(address)].pgd;
+ pgd_p = &early_top_pgt[pgd_index(address)].pgd;
pgd = *pgd_p;
/*
@@ -67,8 +205,25 @@ again:
* critical -- __PAGE_OFFSET would point us back into the dynamic
* range and we might end up looping forever...
*/
- if (pgd)
- pud_p = (pudval_t *)((pgd & PTE_PFN_MASK) + __START_KERNEL_map - phys_base);
+ if (!IS_ENABLED(CONFIG_X86_5LEVEL))
+ p4d_p = pgd_p;
+ else if (pgd)
+ p4d_p = (p4dval_t *)((pgd & PTE_PFN_MASK) + __START_KERNEL_map - phys_base);
+ else {
+ if (next_early_pgt >= EARLY_DYNAMIC_PAGE_TABLES) {
+ reset_early_page_tables();
+ goto again;
+ }
+
+ p4d_p = (p4dval_t *)early_dynamic_pgts[next_early_pgt++];
+ memset(p4d_p, 0, sizeof(*p4d_p) * PTRS_PER_P4D);
+ *pgd_p = (pgdval_t)p4d_p - __START_KERNEL_map + phys_base + _KERNPG_TABLE;
+ }
+ p4d_p += p4d_index(address);
+ p4d = *p4d_p;
+
+ if (p4d)
+ pud_p = (pudval_t *)((p4d & PTE_PFN_MASK) + __START_KERNEL_map - phys_base);
else {
if (next_early_pgt >= EARLY_DYNAMIC_PAGE_TABLES) {
reset_early_page_tables();
@@ -77,7 +232,7 @@ again:
pud_p = (pudval_t *)early_dynamic_pgts[next_early_pgt++];
memset(pud_p, 0, sizeof(*pud_p) * PTRS_PER_PUD);
- *pgd_p = (pgdval_t)pud_p - __START_KERNEL_map + phys_base + _KERNPG_TABLE;
+ *p4d_p = (p4dval_t)pud_p - __START_KERNEL_map + phys_base + _KERNPG_TABLE;
}
pud_p += pud_index(address);
pud = *pud_p;
@@ -94,12 +249,21 @@ again:
memset(pmd_p, 0, sizeof(*pmd_p) * PTRS_PER_PMD);
*pud_p = (pudval_t)pmd_p - __START_KERNEL_map + phys_base + _KERNPG_TABLE;
}
- pmd = (physaddr & PMD_MASK) + early_pmd_flags;
pmd_p[pmd_index(address)] = pmd;
return 0;
}
+int __init early_make_pgtable(unsigned long address)
+{
+ unsigned long physaddr = address - __PAGE_OFFSET;
+ pmdval_t pmd;
+
+ pmd = (physaddr & PMD_MASK) + early_pmd_flags;
+
+ return __early_make_pgtable(address, pmd);
+}
+
/* Don't add a printk in there. printk relies on the PDA which is not initialized
yet. */
static void __init clear_bss(void)
@@ -122,6 +286,12 @@ static void __init copy_bootdata(char *real_mode_data)
char * command_line;
unsigned long cmd_line_ptr;
+ /*
+ * If SME is active, this will create decrypted mappings of the
+ * boot data in advance of the copy operations.
+ */
+ sme_map_bootdata(real_mode_data);
+
memcpy(&boot_params, real_mode_data, sizeof boot_params);
sanitize_boot_params(&boot_params);
cmd_line_ptr = get_cmd_line_ptr();
@@ -129,12 +299,18 @@ static void __init copy_bootdata(char *real_mode_data)
command_line = __va(cmd_line_ptr);
memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
}
+
+ /*
+ * The old boot data is no longer needed and won't be reserved,
+ * freeing up that memory for use by the system. If SME is active,
+ * we need to remove the mappings that were created so that the
+ * memory doesn't remain mapped as decrypted.
+ */
+ sme_unmap_bootdata(real_mode_data);
}
asmlinkage __visible void __init x86_64_start_kernel(char * real_mode_data)
{
- int i;
-
/*
* Build-time sanity checks on the kernel image and module
* area mappings. (these are purely build-time and produce no code)
@@ -156,13 +332,18 @@ asmlinkage __visible void __init x86_64_start_kernel(char * real_mode_data)
clear_bss();
- clear_page(init_level4_pgt);
+ clear_page(init_top_pgt);
+
+ /*
+ * SME support may update early_pmd_flags to include the memory
+ * encryption mask, so it needs to be called before anything
+ * that may generate a page fault.
+ */
+ sme_early_init();
kasan_early_init();
- for (i = 0; i < NUM_EXCEPTION_VECTORS; i++)
- set_intr_gate(i, early_idt_handler_array[i]);
- load_idt((const struct desc_ptr *)&idt_descr);
+ idt_setup_early_handler();
copy_bootdata(__va(real_mode_data));
@@ -171,8 +352,8 @@ asmlinkage __visible void __init x86_64_start_kernel(char * real_mode_data)
*/
load_ucode_bsp();
- /* set init_level4_pgt kernel high mapping*/
- init_level4_pgt[511] = early_level4_pgt[511];
+ /* set init_top_pgt kernel high mapping*/
+ init_top_pgt[511] = early_top_pgt[511];
x86_64_start_reservations(real_mode_data);
}
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 1f85ee8f9439..9ed3074d0d27 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -155,7 +155,6 @@ ENTRY(startup_32)
jmp *%eax
.Lbad_subarch:
-WEAK(lguest_entry)
WEAK(xen_entry)
/* Unknown implementation; there's really
nothing we can do at this point. */
@@ -165,7 +164,6 @@ WEAK(xen_entry)
subarch_entries:
.long .Ldefault_entry /* normal x86/PC */
- .long lguest_entry /* lguest hypervisor */
.long xen_entry /* Xen hypervisor */
.long .Ldefault_entry /* Moorestown MID */
num_subarch_entries = (. - subarch_entries) / 4
@@ -347,7 +345,6 @@ ENTRY(startup_32_smp)
movl %eax,%cr0
lgdt early_gdt_descr
- lidt idt_descr
ljmp $(__KERNEL_CS),$1f
1: movl $(__KERNEL_DS),%eax # reload all the segment registers
movl %eax,%ss # after changing gdt.
@@ -380,37 +377,6 @@ ENDPROC(startup_32_smp)
*/
__INIT
setup_once:
- /*
- * Set up a idt with 256 interrupt gates that push zero if there
- * is no error code and then jump to early_idt_handler_common.
- * It doesn't actually load the idt - that needs to be done on
- * each CPU. Interrupts are enabled elsewhere, when we can be
- * relatively sure everything is ok.
- */
-
- movl $idt_table,%edi
- movl $early_idt_handler_array,%eax
- movl $NUM_EXCEPTION_VECTORS,%ecx
-1:
- movl %eax,(%edi)
- movl %eax,4(%edi)
- /* interrupt gate, dpl=0, present */
- movl $(0x8E000000 + __KERNEL_CS),2(%edi)
- addl $EARLY_IDT_HANDLER_SIZE,%eax
- addl $8,%edi
- loop 1b
-
- movl $256 - NUM_EXCEPTION_VECTORS,%ecx
- movl $ignore_int,%edx
- movl $(__KERNEL_CS << 16),%eax
- movw %dx,%ax /* selector = 0x0010 = cs */
- movw $0x8E00,%dx /* interrupt gate - dpl=0, present */
-2:
- movl %eax,(%edi)
- movl %edx,4(%edi)
- addl $8,%edi
- loop 2b
-
#ifdef CONFIG_CC_STACKPROTECTOR
/*
* Configure the stack canary. The linker can't handle this by
@@ -457,12 +423,9 @@ early_idt_handler_common:
/* The vector number is in pt_regs->gs */
cld
- pushl %fs /* pt_regs->fs */
- movw $0, 2(%esp) /* clear high bits (some CPUs leave garbage) */
- pushl %es /* pt_regs->es */
- movw $0, 2(%esp) /* clear high bits (some CPUs leave garbage) */
- pushl %ds /* pt_regs->ds */
- movw $0, 2(%esp) /* clear high bits (some CPUs leave garbage) */
+ pushl %fs /* pt_regs->fs (__fsh varies by model) */
+ pushl %es /* pt_regs->es (__esh varies by model) */
+ pushl %ds /* pt_regs->ds (__dsh varies by model) */
pushl %eax /* pt_regs->ax */
pushl %ebp /* pt_regs->bp */
pushl %edi /* pt_regs->di */
@@ -479,9 +442,8 @@ early_idt_handler_common:
/* Load the vector number into EDX */
movl PT_GS(%esp), %edx
- /* Load GS into pt_regs->gs and clear high bits */
+ /* Load GS into pt_regs->gs (and maybe clobber __gsh) */
movw %gs, PT_GS(%esp)
- movw $0, PT_GS+2(%esp)
movl %esp, %eax /* args are pt_regs (EAX), trapnr (EDX) */
call early_fixup_exception
@@ -493,18 +455,17 @@ early_idt_handler_common:
popl %edi /* pt_regs->di */
popl %ebp /* pt_regs->bp */
popl %eax /* pt_regs->ax */
- popl %ds /* pt_regs->ds */
- popl %es /* pt_regs->es */
- popl %fs /* pt_regs->fs */
- popl %gs /* pt_regs->gs */
+ popl %ds /* pt_regs->ds (always ignores __dsh) */
+ popl %es /* pt_regs->es (always ignores __esh) */
+ popl %fs /* pt_regs->fs (always ignores __fsh) */
+ popl %gs /* pt_regs->gs (always ignores __gsh) */
decl %ss:early_recursion_flag
addl $4, %esp /* pop pt_regs->orig_ax */
iret
ENDPROC(early_idt_handler_common)
/* This is the default interrupt "handler" :-) */
- ALIGN
-ignore_int:
+ENTRY(early_ignore_irq)
cld
#ifdef CONFIG_PRINTK
pushl %eax
@@ -539,7 +500,8 @@ ignore_int:
hlt_loop:
hlt
jmp hlt_loop
-ENDPROC(ignore_int)
+ENDPROC(early_ignore_irq)
+
__INITDATA
.align 4
GLOBAL(early_recursion_flag)
@@ -628,7 +590,6 @@ int_msg:
.data
.globl boot_gdt_descr
-.globl idt_descr
ALIGN
# early boot GDT descriptor (must use 1:1 address mapping)
@@ -637,11 +598,6 @@ boot_gdt_descr:
.word __BOOT_DS+7
.long boot_gdt - __PAGE_OFFSET
- .word 0 # 32-bit align idt_desc.address
-idt_descr:
- .word IDT_ENTRIES*8-1 # idt contains 256 entries
- .long idt_table
-
# boot GDT descriptor (later on used by CPU#0):
.word 0 # 32 bit align gdt_desc.address
ENTRY(early_gdt_descr)
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index ac9d327d2e42..513cbb012ecc 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -37,10 +37,11 @@
*
*/
+#define p4d_index(x) (((x) >> P4D_SHIFT) & (PTRS_PER_P4D-1))
#define pud_index(x) (((x) >> PUD_SHIFT) & (PTRS_PER_PUD-1))
-L4_PAGE_OFFSET = pgd_index(__PAGE_OFFSET_BASE)
-L4_START_KERNEL = pgd_index(__START_KERNEL_map)
+PGD_PAGE_OFFSET = pgd_index(__PAGE_OFFSET_BASE)
+PGD_START_KERNEL = pgd_index(__START_KERNEL_map)
L3_START_KERNEL = pud_index(__START_KERNEL_map)
.text
@@ -73,100 +74,18 @@ startup_64:
call verify_cpu
/*
- * Compute the delta between the address I am compiled to run at and the
- * address I am actually running at.
- */
- leaq _text(%rip), %rbp
- subq $_text - __START_KERNEL_map, %rbp
-
- /* Is the address not 2M aligned? */
- testl $~PMD_PAGE_MASK, %ebp
- jnz bad_address
-
- /*
- * Is the address too large?
- */
- leaq _text(%rip), %rax
- shrq $MAX_PHYSMEM_BITS, %rax
- jnz bad_address
-
- /*
- * Fixup the physical addresses in the page table
- */
- addq %rbp, early_level4_pgt + (L4_START_KERNEL*8)(%rip)
-
- addq %rbp, level3_kernel_pgt + (510*8)(%rip)
- addq %rbp, level3_kernel_pgt + (511*8)(%rip)
-
- addq %rbp, level2_fixmap_pgt + (506*8)(%rip)
-
- /*
- * Set up the identity mapping for the switchover. These
- * entries should *NOT* have the global bit set! This also
- * creates a bunch of nonsense entries but that is fine --
- * it avoids problems around wraparound.
+ * Perform pagetable fixups. Additionally, if SME is active, encrypt
+ * the kernel and retrieve the modifier (SME encryption mask if SME
+ * is active) to be added to the initial pgdir entry that will be
+ * programmed into CR3.
*/
leaq _text(%rip), %rdi
- leaq early_level4_pgt(%rip), %rbx
-
- movq %rdi, %rax
- shrq $PGDIR_SHIFT, %rax
-
- leaq (PAGE_SIZE + _KERNPG_TABLE)(%rbx), %rdx
- movq %rdx, 0(%rbx,%rax,8)
- movq %rdx, 8(%rbx,%rax,8)
-
- addq $PAGE_SIZE, %rdx
- movq %rdi, %rax
- shrq $PUD_SHIFT, %rax
- andl $(PTRS_PER_PUD-1), %eax
- movq %rdx, PAGE_SIZE(%rbx,%rax,8)
- incl %eax
- andl $(PTRS_PER_PUD-1), %eax
- movq %rdx, PAGE_SIZE(%rbx,%rax,8)
-
- addq $PAGE_SIZE * 2, %rbx
- movq %rdi, %rax
- shrq $PMD_SHIFT, %rdi
- addq $(__PAGE_KERNEL_LARGE_EXEC & ~_PAGE_GLOBAL), %rax
- leaq (_end - 1)(%rip), %rcx
- shrq $PMD_SHIFT, %rcx
- subq %rdi, %rcx
- incl %ecx
-
-1:
- andq $(PTRS_PER_PMD - 1), %rdi
- movq %rax, (%rbx,%rdi,8)
- incq %rdi
- addq $PMD_SIZE, %rax
- decl %ecx
- jnz 1b
-
- test %rbp, %rbp
- jz .Lskip_fixup
+ pushq %rsi
+ call __startup_64
+ popq %rsi
- /*
- * Fixup the kernel text+data virtual addresses. Note that
- * we might write invalid pmds, when the kernel is relocated
- * cleanup_highmap() fixes this up along with the mappings
- * beyond _end.
- */
- leaq level2_kernel_pgt(%rip), %rdi
- leaq PAGE_SIZE(%rdi), %r8
- /* See if it is a valid page table entry */
-1: testb $_PAGE_PRESENT, 0(%rdi)
- jz 2f
- addq %rbp, 0(%rdi)
- /* Go to the next page */
-2: addq $8, %rdi
- cmp %r8, %rdi
- jne 1b
-
- /* Fixup phys_base */
- addq %rbp, phys_base(%rip)
-
-.Lskip_fixup:
- movq $(early_level4_pgt - __START_KERNEL_map), %rax
+ /* Form the CR3 value being sure to include the CR3 modifier */
+ addq $(early_top_pgt - __START_KERNEL_map), %rax
jmp 1f
ENTRY(secondary_startup_64)
/*
@@ -186,14 +105,26 @@ ENTRY(secondary_startup_64)
/* Sanitize CPU configuration */
call verify_cpu
- movq $(init_level4_pgt - __START_KERNEL_map), %rax
+ /*
+ * Retrieve the modifier (SME encryption mask if SME is active) to be
+ * added to the initial pgdir entry that will be programmed into CR3.
+ */
+ pushq %rsi
+ call __startup_secondary_64
+ popq %rsi
+
+ /* Form the CR3 value being sure to include the CR3 modifier */
+ addq $(init_top_pgt - __START_KERNEL_map), %rax
1:
- /* Enable PAE mode and PGE */
+ /* Enable PAE mode, PGE and LA57 */
movl $(X86_CR4_PAE | X86_CR4_PGE), %ecx
+#ifdef CONFIG_X86_5LEVEL
+ orl $X86_CR4_LA57, %ecx
+#endif
movq %rcx, %cr4
- /* Setup early boot stage 4 level pagetables. */
+ /* Setup early boot stage 4-/5-level pagetables. */
addq phys_base(%rip), %rax
movq %rax, %cr3
@@ -417,9 +348,13 @@ GLOBAL(name)
.endr
__INITDATA
-NEXT_PAGE(early_level4_pgt)
+NEXT_PAGE(early_top_pgt)
.fill 511,8,0
- .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE
+#ifdef CONFIG_X86_5LEVEL
+ .quad level4_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE_NOENC
+#else
+ .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE_NOENC
+#endif
NEXT_PAGE(early_dynamic_pgts)
.fill 512*EARLY_DYNAMIC_PAGE_TABLES,8,0
@@ -427,19 +362,19 @@ NEXT_PAGE(early_dynamic_pgts)
.data
#ifndef CONFIG_XEN
-NEXT_PAGE(init_level4_pgt)
+NEXT_PAGE(init_top_pgt)
.fill 512,8,0
#else
-NEXT_PAGE(init_level4_pgt)
- .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
- .org init_level4_pgt + L4_PAGE_OFFSET*8, 0
- .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
- .org init_level4_pgt + L4_START_KERNEL*8, 0
+NEXT_PAGE(init_top_pgt)
+ .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE_NOENC
+ .org init_top_pgt + PGD_PAGE_OFFSET*8, 0
+ .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE_NOENC
+ .org init_top_pgt + PGD_START_KERNEL*8, 0
/* (2^48-(2*1024*1024*1024))/(2^39) = 511 */
- .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE
+ .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE_NOENC
NEXT_PAGE(level3_ident_pgt)
- .quad level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
+ .quad level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE_NOENC
.fill 511, 8, 0
NEXT_PAGE(level2_ident_pgt)
/* Since I easily can, map the first 1G.
@@ -448,11 +383,17 @@ NEXT_PAGE(level2_ident_pgt)
PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD)
#endif
+#ifdef CONFIG_X86_5LEVEL
+NEXT_PAGE(level4_kernel_pgt)
+ .fill 511,8,0
+ .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE_NOENC
+#endif
+
NEXT_PAGE(level3_kernel_pgt)
.fill L3_START_KERNEL,8,0
/* (2^48-(2*1024*1024*1024)-((2^39)*511))/(2^30) = 510 */
- .quad level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE
- .quad level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
+ .quad level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE_NOENC
+ .quad level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE_NOENC
NEXT_PAGE(level2_kernel_pgt)
/*
@@ -470,7 +411,7 @@ NEXT_PAGE(level2_kernel_pgt)
NEXT_PAGE(level2_fixmap_pgt)
.fill 506,8,0
- .quad level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
+ .quad level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE_NOENC
/* 8MB reserved for vsyscalls + a 2MB hole = 4 + 1 entries */
.fill 5,8,0
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 89ff7af2de50..8ce4212e2b8d 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -285,7 +285,7 @@ static void hpet_legacy_clockevent_register(void)
* Start hpet with the boot cpu mask and make it
* global after the IO_APIC has been initialized.
*/
- hpet_clockevent.cpumask = cpumask_of(smp_processor_id());
+ hpet_clockevent.cpumask = cpumask_of(boot_cpu_data.cpu_index);
clockevents_config_and_register(&hpet_clockevent, hpet_freq,
HPET_MIN_PROG_DELTA, 0x7FFFFFFF);
global_clock_event = &hpet_clockevent;
@@ -345,21 +345,10 @@ static int hpet_shutdown(struct clock_event_device *evt, int timer)
return 0;
}
-static int hpet_resume(struct clock_event_device *evt, int timer)
+static int hpet_resume(struct clock_event_device *evt)
{
- if (!timer) {
- hpet_enable_legacy_int();
- } else {
- struct hpet_dev *hdev = EVT_TO_HPET_DEV(evt);
-
- irq_domain_deactivate_irq(irq_get_irq_data(hdev->irq));
- irq_domain_activate_irq(irq_get_irq_data(hdev->irq));
- disable_hardirq(hdev->irq);
- irq_set_affinity(hdev->irq, cpumask_of(hdev->cpu));
- enable_irq(hdev->irq);
- }
+ hpet_enable_legacy_int();
hpet_print_config();
-
return 0;
}
@@ -417,7 +406,7 @@ static int hpet_legacy_set_periodic(struct clock_event_device *evt)
static int hpet_legacy_resume(struct clock_event_device *evt)
{
- return hpet_resume(evt, 0);
+ return hpet_resume(evt);
}
static int hpet_legacy_next_event(unsigned long delta,
@@ -510,8 +499,14 @@ static int hpet_msi_set_periodic(struct clock_event_device *evt)
static int hpet_msi_resume(struct clock_event_device *evt)
{
struct hpet_dev *hdev = EVT_TO_HPET_DEV(evt);
+ struct irq_data *data = irq_get_irq_data(hdev->irq);
+ struct msi_msg msg;
- return hpet_resume(evt, hdev->num);
+ /* Restore the MSI msg and unmask the interrupt */
+ irq_chip_compose_msi_msg(data, &msg);
+ hpet_msi_write(hdev, &msg);
+ hpet_msi_unmask(data);
+ return 0;
}
static int hpet_msi_next_event(unsigned long delta,
diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c
new file mode 100644
index 000000000000..6107ee1cb8d5
--- /dev/null
+++ b/arch/x86/kernel/idt.c
@@ -0,0 +1,371 @@
+/*
+ * Interrupt descriptor table related code
+ *
+ * This file is licensed under the GPL V2
+ */
+#include <linux/interrupt.h>
+
+#include <asm/traps.h>
+#include <asm/proto.h>
+#include <asm/desc.h>
+
+struct idt_data {
+ unsigned int vector;
+ unsigned int segment;
+ struct idt_bits bits;
+ const void *addr;
+};
+
+#define DPL0 0x0
+#define DPL3 0x3
+
+#define DEFAULT_STACK 0
+
+#define G(_vector, _addr, _ist, _type, _dpl, _segment) \
+ { \
+ .vector = _vector, \
+ .bits.ist = _ist, \
+ .bits.type = _type, \
+ .bits.dpl = _dpl, \
+ .bits.p = 1, \
+ .addr = _addr, \
+ .segment = _segment, \
+ }
+
+/* Interrupt gate */
+#define INTG(_vector, _addr) \
+ G(_vector, _addr, DEFAULT_STACK, GATE_INTERRUPT, DPL0, __KERNEL_CS)
+
+/* System interrupt gate */
+#define SYSG(_vector, _addr) \
+ G(_vector, _addr, DEFAULT_STACK, GATE_INTERRUPT, DPL3, __KERNEL_CS)
+
+/* Interrupt gate with interrupt stack */
+#define ISTG(_vector, _addr, _ist) \
+ G(_vector, _addr, _ist, GATE_INTERRUPT, DPL0, __KERNEL_CS)
+
+/* System interrupt gate with interrupt stack */
+#define SISTG(_vector, _addr, _ist) \
+ G(_vector, _addr, _ist, GATE_INTERRUPT, DPL3, __KERNEL_CS)
+
+/* Task gate */
+#define TSKG(_vector, _gdt) \
+ G(_vector, NULL, DEFAULT_STACK, GATE_TASK, DPL0, _gdt << 3)
+
+/*
+ * Early traps running on the DEFAULT_STACK because the other interrupt
+ * stacks work only after cpu_init().
+ */
+static const __initdata struct idt_data early_idts[] = {
+ INTG(X86_TRAP_DB, debug),
+ SYSG(X86_TRAP_BP, int3),
+#ifdef CONFIG_X86_32
+ INTG(X86_TRAP_PF, page_fault),
+#endif
+};
+
+/*
+ * The default IDT entries which are set up in trap_init() before
+ * cpu_init() is invoked. Interrupt stacks cannot be used at that point and
+ * the traps which use them are reinitialized with IST after cpu_init() has
+ * set up TSS.
+ */
+static const __initdata struct idt_data def_idts[] = {
+ INTG(X86_TRAP_DE, divide_error),
+ INTG(X86_TRAP_NMI, nmi),
+ INTG(X86_TRAP_BR, bounds),
+ INTG(X86_TRAP_UD, invalid_op),
+ INTG(X86_TRAP_NM, device_not_available),
+ INTG(X86_TRAP_OLD_MF, coprocessor_segment_overrun),
+ INTG(X86_TRAP_TS, invalid_TSS),
+ INTG(X86_TRAP_NP, segment_not_present),
+ INTG(X86_TRAP_SS, stack_segment),
+ INTG(X86_TRAP_GP, general_protection),
+ INTG(X86_TRAP_SPURIOUS, spurious_interrupt_bug),
+ INTG(X86_TRAP_MF, coprocessor_error),
+ INTG(X86_TRAP_AC, alignment_check),
+ INTG(X86_TRAP_XF, simd_coprocessor_error),
+
+#ifdef CONFIG_X86_32
+ TSKG(X86_TRAP_DF, GDT_ENTRY_DOUBLEFAULT_TSS),
+#else
+ INTG(X86_TRAP_DF, double_fault),
+#endif
+ INTG(X86_TRAP_DB, debug),
+ INTG(X86_TRAP_NMI, nmi),
+ INTG(X86_TRAP_BP, int3),
+
+#ifdef CONFIG_X86_MCE
+ INTG(X86_TRAP_MC, &machine_check),
+#endif
+
+ SYSG(X86_TRAP_OF, overflow),
+#if defined(CONFIG_IA32_EMULATION)
+ SYSG(IA32_SYSCALL_VECTOR, entry_INT80_compat),
+#elif defined(CONFIG_X86_32)
+ SYSG(IA32_SYSCALL_VECTOR, entry_INT80_32),
+#endif
+};
+
+/*
+ * The APIC and SMP idt entries
+ */
+static const __initdata struct idt_data apic_idts[] = {
+#ifdef CONFIG_SMP
+ INTG(RESCHEDULE_VECTOR, reschedule_interrupt),
+ INTG(CALL_FUNCTION_VECTOR, call_function_interrupt),
+ INTG(CALL_FUNCTION_SINGLE_VECTOR, call_function_single_interrupt),
+ INTG(IRQ_MOVE_CLEANUP_VECTOR, irq_move_cleanup_interrupt),
+ INTG(REBOOT_VECTOR, reboot_interrupt),
+#endif
+
+#ifdef CONFIG_X86_THERMAL_VECTOR
+ INTG(THERMAL_APIC_VECTOR, thermal_interrupt),
+#endif
+
+#ifdef CONFIG_X86_MCE_THRESHOLD
+ INTG(THRESHOLD_APIC_VECTOR, threshold_interrupt),
+#endif
+
+#ifdef CONFIG_X86_MCE_AMD
+ INTG(DEFERRED_ERROR_VECTOR, deferred_error_interrupt),
+#endif
+
+#ifdef CONFIG_X86_LOCAL_APIC
+ INTG(LOCAL_TIMER_VECTOR, apic_timer_interrupt),
+ INTG(X86_PLATFORM_IPI_VECTOR, x86_platform_ipi),
+# ifdef CONFIG_HAVE_KVM
+ INTG(POSTED_INTR_VECTOR, kvm_posted_intr_ipi),
+ INTG(POSTED_INTR_WAKEUP_VECTOR, kvm_posted_intr_wakeup_ipi),
+ INTG(POSTED_INTR_NESTED_VECTOR, kvm_posted_intr_nested_ipi),
+# endif
+# ifdef CONFIG_IRQ_WORK
+ INTG(IRQ_WORK_VECTOR, irq_work_interrupt),
+# endif
+ INTG(SPURIOUS_APIC_VECTOR, spurious_interrupt),
+ INTG(ERROR_APIC_VECTOR, error_interrupt),
+#endif
+};
+
+#ifdef CONFIG_X86_64
+/*
+ * Early traps running on the DEFAULT_STACK because the other interrupt
+ * stacks work only after cpu_init().
+ */
+static const __initdata struct idt_data early_pf_idts[] = {
+ INTG(X86_TRAP_PF, page_fault),
+};
+
+/*
+ * Override for the debug_idt. Same as the default, but with interrupt
+ * stack set to DEFAULT_STACK (0). Required for NMI trap handling.
+ */
+static const __initdata struct idt_data dbg_idts[] = {
+ INTG(X86_TRAP_DB, debug),
+ INTG(X86_TRAP_BP, int3),
+};
+#endif
+
+/* Must be page-aligned because the real IDT is used in a fixmap. */
+gate_desc idt_table[IDT_ENTRIES] __page_aligned_bss;
+
+struct desc_ptr idt_descr __ro_after_init = {
+ .size = (IDT_ENTRIES * 2 * sizeof(unsigned long)) - 1,
+ .address = (unsigned long) idt_table,
+};
+
+#ifdef CONFIG_X86_64
+/* No need to be aligned, but done to keep all IDTs defined the same way. */
+gate_desc debug_idt_table[IDT_ENTRIES] __page_aligned_bss;
+
+/*
+ * The exceptions which use Interrupt stacks. They are setup after
+ * cpu_init() when the TSS has been initialized.
+ */
+static const __initdata struct idt_data ist_idts[] = {
+ ISTG(X86_TRAP_DB, debug, DEBUG_STACK),
+ ISTG(X86_TRAP_NMI, nmi, NMI_STACK),
+ SISTG(X86_TRAP_BP, int3, DEBUG_STACK),
+ ISTG(X86_TRAP_DF, double_fault, DOUBLEFAULT_STACK),
+#ifdef CONFIG_X86_MCE
+ ISTG(X86_TRAP_MC, &machine_check, MCE_STACK),
+#endif
+};
+
+/*
+ * Override for the debug_idt. Same as the default, but with interrupt
+ * stack set to DEFAULT_STACK (0). Required for NMI trap handling.
+ */
+const struct desc_ptr debug_idt_descr = {
+ .size = IDT_ENTRIES * 16 - 1,
+ .address = (unsigned long) debug_idt_table,
+};
+#endif
+
+static inline void idt_init_desc(gate_desc *gate, const struct idt_data *d)
+{
+ unsigned long addr = (unsigned long) d->addr;
+
+ gate->offset_low = (u16) addr;
+ gate->segment = (u16) d->segment;
+ gate->bits = d->bits;
+ gate->offset_middle = (u16) (addr >> 16);
+#ifdef CONFIG_X86_64
+ gate->offset_high = (u32) (addr >> 32);
+ gate->reserved = 0;
+#endif
+}
+
+static void
+idt_setup_from_table(gate_desc *idt, const struct idt_data *t, int size, bool sys)
+{
+ gate_desc desc;
+
+ for (; size > 0; t++, size--) {
+ idt_init_desc(&desc, t);
+ write_idt_entry(idt, t->vector, &desc);
+ if (sys)
+ set_bit(t->vector, used_vectors);
+ }
+}
+
+static void set_intr_gate(unsigned int n, const void *addr)
+{
+ struct idt_data data;
+
+ BUG_ON(n > 0xFF);
+
+ memset(&data, 0, sizeof(data));
+ data.vector = n;
+ data.addr = addr;
+ data.segment = __KERNEL_CS;
+ data.bits.type = GATE_INTERRUPT;
+ data.bits.p = 1;
+
+ idt_setup_from_table(idt_table, &data, 1, false);
+}
+
+/**
+ * idt_setup_early_traps - Initialize the idt table with early traps
+ *
+ * On X8664 these traps do not use interrupt stacks as they can't work
+ * before cpu_init() is invoked and sets up TSS. The IST variants are
+ * installed after that.
+ */
+void __init idt_setup_early_traps(void)
+{
+ idt_setup_from_table(idt_table, early_idts, ARRAY_SIZE(early_idts),
+ true);
+ load_idt(&idt_descr);
+}
+
+/**
+ * idt_setup_traps - Initialize the idt table with default traps
+ */
+void __init idt_setup_traps(void)
+{
+ idt_setup_from_table(idt_table, def_idts, ARRAY_SIZE(def_idts), true);
+}
+
+#ifdef CONFIG_X86_64
+/**
+ * idt_setup_early_pf - Initialize the idt table with early pagefault handler
+ *
+ * On X8664 this does not use interrupt stacks as they can't work before
+ * cpu_init() is invoked and sets up TSS. The IST variant is installed
+ * after that.
+ *
+ * FIXME: Why is 32bit and 64bit installing the PF handler at different
+ * places in the early setup code?
+ */
+void __init idt_setup_early_pf(void)
+{
+ idt_setup_from_table(idt_table, early_pf_idts,
+ ARRAY_SIZE(early_pf_idts), true);
+}
+
+/**
+ * idt_setup_ist_traps - Initialize the idt table with traps using IST
+ */
+void __init idt_setup_ist_traps(void)
+{
+ idt_setup_from_table(idt_table, ist_idts, ARRAY_SIZE(ist_idts), true);
+}
+
+/**
+ * idt_setup_debugidt_traps - Initialize the debug idt table with debug traps
+ */
+void __init idt_setup_debugidt_traps(void)
+{
+ memcpy(&debug_idt_table, &idt_table, IDT_ENTRIES * 16);
+
+ idt_setup_from_table(debug_idt_table, dbg_idts, ARRAY_SIZE(dbg_idts), false);
+}
+#endif
+
+/**
+ * idt_setup_apic_and_irq_gates - Setup APIC/SMP and normal interrupt gates
+ */
+void __init idt_setup_apic_and_irq_gates(void)
+{
+ int i = FIRST_EXTERNAL_VECTOR;
+ void *entry;
+
+ idt_setup_from_table(idt_table, apic_idts, ARRAY_SIZE(apic_idts), true);
+
+ for_each_clear_bit_from(i, used_vectors, FIRST_SYSTEM_VECTOR) {
+ entry = irq_entries_start + 8 * (i - FIRST_EXTERNAL_VECTOR);
+ set_intr_gate(i, entry);
+ }
+
+ for_each_clear_bit_from(i, used_vectors, NR_VECTORS) {
+#ifdef CONFIG_X86_LOCAL_APIC
+ set_bit(i, used_vectors);
+ set_intr_gate(i, spurious_interrupt);
+#else
+ entry = irq_entries_start + 8 * (i - FIRST_EXTERNAL_VECTOR);
+ set_intr_gate(i, entry);
+#endif
+ }
+}
+
+/**
+ * idt_setup_early_handler - Initializes the idt table with early handlers
+ */
+void __init idt_setup_early_handler(void)
+{
+ int i;
+
+ for (i = 0; i < NUM_EXCEPTION_VECTORS; i++)
+ set_intr_gate(i, early_idt_handler_array[i]);
+#ifdef CONFIG_X86_32
+ for ( ; i < NR_VECTORS; i++)
+ set_intr_gate(i, early_ignore_irq);
+#endif
+ load_idt(&idt_descr);
+}
+
+/**
+ * idt_invalidate - Invalidate interrupt descriptor table
+ * @addr: The virtual address of the 'invalid' IDT
+ */
+void idt_invalidate(void *addr)
+{
+ struct desc_ptr idt = { .address = (unsigned long) addr, .size = 0 };
+
+ load_idt(&idt);
+}
+
+void __init update_intr_gate(unsigned int n, const void *addr)
+{
+ if (WARN_ON_ONCE(!test_bit(n, used_vectors)))
+ return;
+ set_intr_gate(n, addr);
+}
+
+void alloc_intr_gate(unsigned int n, const void *addr)
+{
+ BUG_ON(n < FIRST_SYSTEM_VECTOR);
+ if (!test_and_set_bit(n, used_vectors))
+ set_intr_gate(n, addr);
+}
diff --git a/arch/x86/kernel/io_delay.c b/arch/x86/kernel/io_delay.c
index 50c89e8a95f2..7ebcc4a74438 100644
--- a/arch/x86/kernel/io_delay.c
+++ b/arch/x86/kernel/io_delay.c
@@ -58,7 +58,7 @@ static int __init dmi_io_delay_0xed_port(const struct dmi_system_id *id)
* Quirk table for systems that misbehave (lock up, etc.) if port
* 0x80 is used:
*/
-static struct dmi_system_id __initdata io_delay_0xed_port_dmi_table[] = {
+static const struct dmi_system_id io_delay_0xed_port_dmi_table[] __initconst = {
{
.callback = dmi_io_delay_0xed_port,
.ident = "Compaq Presario V6000",
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index f34fe7444836..52089c043160 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -29,9 +29,6 @@ EXPORT_PER_CPU_SYMBOL(irq_regs);
atomic_t irq_err_count;
-/* Function pointer for generic interrupt vector handling */
-void (*x86_platform_ipi_callback)(void) = NULL;
-
/*
* 'what should we do if we get a hw irq event on an illegal vector'.
* each architecture has to answer this themselves.
@@ -87,13 +84,13 @@ int arch_show_interrupts(struct seq_file *p, int prec)
for_each_online_cpu(j)
seq_printf(p, "%10u ", irq_stats(j)->icr_read_retry_count);
seq_puts(p, " APIC ICR read retries\n");
-#endif
if (x86_platform_ipi_callback) {
seq_printf(p, "%*s: ", prec, "PLT");
for_each_online_cpu(j)
seq_printf(p, "%10u ", irq_stats(j)->x86_platform_ipis);
seq_puts(p, " Platform interrupts\n");
}
+#endif
#ifdef CONFIG_SMP
seq_printf(p, "%*s: ", prec, "RES");
for_each_online_cpu(j)
@@ -155,6 +152,12 @@ int arch_show_interrupts(struct seq_file *p, int prec)
seq_printf(p, "%10u ", irq_stats(j)->kvm_posted_intr_ipis);
seq_puts(p, " Posted-interrupt notification event\n");
+ seq_printf(p, "%*s: ", prec, "NPI");
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ",
+ irq_stats(j)->kvm_posted_intr_nested_ipis);
+ seq_puts(p, " Nested posted-interrupt event\n");
+
seq_printf(p, "%*s: ", prec, "PIW");
for_each_online_cpu(j)
seq_printf(p, "%10u ",
@@ -177,9 +180,9 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
sum += irq_stats(cpu)->apic_perf_irqs;
sum += irq_stats(cpu)->apic_irq_work_irqs;
sum += irq_stats(cpu)->icr_read_retry_count;
-#endif
if (x86_platform_ipi_callback)
sum += irq_stats(cpu)->x86_platform_ipis;
+#endif
#ifdef CONFIG_SMP
sum += irq_stats(cpu)->irq_resched_count;
sum += irq_stats(cpu)->irq_call_count;
@@ -253,26 +256,26 @@ __visible unsigned int __irq_entry do_IRQ(struct pt_regs *regs)
return 1;
}
+#ifdef CONFIG_X86_LOCAL_APIC
+/* Function pointer for generic interrupt vector handling */
+void (*x86_platform_ipi_callback)(void) = NULL;
/*
* Handler for X86_PLATFORM_IPI_VECTOR.
*/
-void __smp_x86_platform_ipi(void)
-{
- inc_irq_stat(x86_platform_ipis);
-
- if (x86_platform_ipi_callback)
- x86_platform_ipi_callback();
-}
-
__visible void __irq_entry smp_x86_platform_ipi(struct pt_regs *regs)
{
struct pt_regs *old_regs = set_irq_regs(regs);
entering_ack_irq();
- __smp_x86_platform_ipi();
+ trace_x86_platform_ipi_entry(X86_PLATFORM_IPI_VECTOR);
+ inc_irq_stat(x86_platform_ipis);
+ if (x86_platform_ipi_callback)
+ x86_platform_ipi_callback();
+ trace_x86_platform_ipi_exit(X86_PLATFORM_IPI_VECTOR);
exiting_irq();
set_irq_regs(old_regs);
}
+#endif
#ifdef CONFIG_HAVE_KVM
static void dummy_handler(void) {}
@@ -313,21 +316,21 @@ __visible void smp_kvm_posted_intr_wakeup_ipi(struct pt_regs *regs)
exiting_irq();
set_irq_regs(old_regs);
}
-#endif
-__visible void __irq_entry smp_trace_x86_platform_ipi(struct pt_regs *regs)
+/*
+ * Handler for POSTED_INTERRUPT_NESTED_VECTOR.
+ */
+__visible void smp_kvm_posted_intr_nested_ipi(struct pt_regs *regs)
{
struct pt_regs *old_regs = set_irq_regs(regs);
entering_ack_irq();
- trace_x86_platform_ipi_entry(X86_PLATFORM_IPI_VECTOR);
- __smp_x86_platform_ipi();
- trace_x86_platform_ipi_exit(X86_PLATFORM_IPI_VECTOR);
+ inc_irq_stat(kvm_posted_intr_nested_ipis);
exiting_irq();
set_irq_regs(old_regs);
}
+#endif
-EXPORT_SYMBOL_GPL(vector_used_by_percpu_irq);
#ifdef CONFIG_HOTPLUG_CPU
@@ -412,7 +415,7 @@ int check_irq_vectors_for_cpu_disable(void)
* this w/o holding vector_lock.
*/
for (vector = FIRST_EXTERNAL_VECTOR;
- vector < first_system_vector; vector++) {
+ vector < FIRST_SYSTEM_VECTOR; vector++) {
if (!test_bit(vector, used_vectors) &&
IS_ERR_OR_NULL(per_cpu(vector_irq, cpu)[vector])) {
if (++count == this_count)
@@ -432,84 +435,12 @@ int check_irq_vectors_for_cpu_disable(void)
/* A cpu has been removed from cpu_online_mask. Reset irq affinities. */
void fixup_irqs(void)
{
- unsigned int irq, vector;
- static int warned;
+ unsigned int irr, vector;
struct irq_desc *desc;
struct irq_data *data;
struct irq_chip *chip;
- int ret;
- for_each_irq_desc(irq, desc) {
- int break_affinity = 0;
- int set_affinity = 1;
- const struct cpumask *affinity;
-
- if (!desc)
- continue;
- if (irq == 2)
- continue;
-
- /* interrupt's are disabled at this point */
- raw_spin_lock(&desc->lock);
-
- data = irq_desc_get_irq_data(desc);
- affinity = irq_data_get_affinity_mask(data);
- if (!irq_has_action(irq) || irqd_is_per_cpu(data) ||
- cpumask_subset(affinity, cpu_online_mask)) {
- raw_spin_unlock(&desc->lock);
- continue;
- }
-
- /*
- * Complete the irq move. This cpu is going down and for
- * non intr-remapping case, we can't wait till this interrupt
- * arrives at this cpu before completing the irq move.
- */
- irq_force_complete_move(desc);
-
- if (cpumask_any_and(affinity, cpu_online_mask) >= nr_cpu_ids) {
- break_affinity = 1;
- affinity = cpu_online_mask;
- }
-
- chip = irq_data_get_irq_chip(data);
- /*
- * The interrupt descriptor might have been cleaned up
- * already, but it is not yet removed from the radix tree
- */
- if (!chip) {
- raw_spin_unlock(&desc->lock);
- continue;
- }
-
- if (!irqd_can_move_in_process_context(data) && chip->irq_mask)
- chip->irq_mask(data);
-
- if (chip->irq_set_affinity) {
- ret = chip->irq_set_affinity(data, affinity, true);
- if (ret == -ENOSPC)
- pr_crit("IRQ %d set affinity failed because there are no available vectors. The device assigned to this IRQ is unstable.\n", irq);
- } else {
- if (!(warned++))
- set_affinity = 0;
- }
-
- /*
- * We unmask if the irq was not marked masked by the
- * core code. That respects the lazy irq disable
- * behaviour.
- */
- if (!irqd_can_move_in_process_context(data) &&
- !irqd_irq_masked(data) && chip->irq_unmask)
- chip->irq_unmask(data);
-
- raw_spin_unlock(&desc->lock);
-
- if (break_affinity && set_affinity)
- pr_notice("Broke affinity for irq %i\n", irq);
- else if (!set_affinity)
- pr_notice("Cannot set affinity for irq %i\n", irq);
- }
+ irq_migrate_all_off_this_cpu();
/*
* We can remove mdelay() and then send spuriuous interrupts to
@@ -528,8 +459,6 @@ void fixup_irqs(void)
* nothing else will touch it.
*/
for (vector = FIRST_EXTERNAL_VECTOR; vector < NR_VECTORS; vector++) {
- unsigned int irr;
-
if (IS_ERR_OR_NULL(__this_cpu_read(vector_irq[vector])))
continue;
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index 1f38d9a4d9de..d4eb450144fd 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -64,7 +64,7 @@ static void call_on_stack(void *func, void *stack)
static inline void *current_stack(void)
{
- return (void *)(current_stack_pointer() & ~(THREAD_SIZE - 1));
+ return (void *)(current_stack_pointer & ~(THREAD_SIZE - 1));
}
static inline int execute_on_irq_stack(int overflow, struct irq_desc *desc)
@@ -88,7 +88,7 @@ static inline int execute_on_irq_stack(int overflow, struct irq_desc *desc)
/* Save the next esp at the bottom of the stack */
prev_esp = (u32 *)irqstk;
- *prev_esp = current_stack_pointer();
+ *prev_esp = current_stack_pointer;
if (unlikely(overflow))
call_on_stack(print_stack_overflow, isp);
@@ -139,7 +139,7 @@ void do_softirq_own_stack(void)
/* Push the previous esp onto the stack */
prev_esp = (u32 *)irqstk;
- *prev_esp = current_stack_pointer();
+ *prev_esp = current_stack_pointer;
call_on_stack(__do_softirq, isp);
}
diff --git a/arch/x86/kernel/irq_work.c b/arch/x86/kernel/irq_work.c
index 275487872be2..70dee056f92b 100644
--- a/arch/x86/kernel/irq_work.c
+++ b/arch/x86/kernel/irq_work.c
@@ -11,35 +11,23 @@
#include <asm/trace/irq_vectors.h>
#include <linux/interrupt.h>
-static inline void __smp_irq_work_interrupt(void)
-{
- inc_irq_stat(apic_irq_work_irqs);
- irq_work_run();
-}
-
+#ifdef CONFIG_X86_LOCAL_APIC
__visible void __irq_entry smp_irq_work_interrupt(struct pt_regs *regs)
{
ipi_entering_ack_irq();
- __smp_irq_work_interrupt();
- exiting_irq();
-}
-
-__visible void __irq_entry smp_trace_irq_work_interrupt(struct pt_regs *regs)
-{
- ipi_entering_ack_irq();
trace_irq_work_entry(IRQ_WORK_VECTOR);
- __smp_irq_work_interrupt();
+ inc_irq_stat(apic_irq_work_irqs);
+ irq_work_run();
trace_irq_work_exit(IRQ_WORK_VECTOR);
exiting_irq();
}
void arch_irq_work_raise(void)
{
-#ifdef CONFIG_X86_LOCAL_APIC
if (!arch_irq_work_has_interrupt())
return;
apic->send_IPI_self(IRQ_WORK_VECTOR);
apic_wait_icr_idle();
-#endif
}
+#endif
diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c
index 7468c6987547..1add9e08e83e 100644
--- a/arch/x86/kernel/irqinit.c
+++ b/arch/x86/kernel/irqinit.c
@@ -55,18 +55,6 @@ DEFINE_PER_CPU(vector_irq_t, vector_irq) = {
[0 ... NR_VECTORS - 1] = VECTOR_UNUSED,
};
-int vector_used_by_percpu_irq(unsigned int vector)
-{
- int cpu;
-
- for_each_online_cpu(cpu) {
- if (!IS_ERR_OR_NULL(per_cpu(vector_irq, cpu)[vector]))
- return 1;
- }
-
- return 0;
-}
-
void __init init_ISA_irqs(void)
{
struct irq_chip *chip = legacy_pic->chip;
@@ -99,98 +87,12 @@ void __init init_IRQ(void)
x86_init.irqs.intr_init();
}
-static void __init smp_intr_init(void)
-{
-#ifdef CONFIG_SMP
- /*
- * The reschedule interrupt is a CPU-to-CPU reschedule-helper
- * IPI, driven by wakeup.
- */
- alloc_intr_gate(RESCHEDULE_VECTOR, reschedule_interrupt);
-
- /* IPI for generic function call */
- alloc_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt);
-
- /* IPI for generic single function call */
- alloc_intr_gate(CALL_FUNCTION_SINGLE_VECTOR,
- call_function_single_interrupt);
-
- /* Low priority IPI to cleanup after moving an irq */
- set_intr_gate(IRQ_MOVE_CLEANUP_VECTOR, irq_move_cleanup_interrupt);
- set_bit(IRQ_MOVE_CLEANUP_VECTOR, used_vectors);
-
- /* IPI used for rebooting/stopping */
- alloc_intr_gate(REBOOT_VECTOR, reboot_interrupt);
-#endif /* CONFIG_SMP */
-}
-
-static void __init apic_intr_init(void)
-{
- smp_intr_init();
-
-#ifdef CONFIG_X86_THERMAL_VECTOR
- alloc_intr_gate(THERMAL_APIC_VECTOR, thermal_interrupt);
-#endif
-#ifdef CONFIG_X86_MCE_THRESHOLD
- alloc_intr_gate(THRESHOLD_APIC_VECTOR, threshold_interrupt);
-#endif
-
-#ifdef CONFIG_X86_MCE_AMD
- alloc_intr_gate(DEFERRED_ERROR_VECTOR, deferred_error_interrupt);
-#endif
-
-#ifdef CONFIG_X86_LOCAL_APIC
- /* self generated IPI for local APIC timer */
- alloc_intr_gate(LOCAL_TIMER_VECTOR, apic_timer_interrupt);
-
- /* IPI for X86 platform specific use */
- alloc_intr_gate(X86_PLATFORM_IPI_VECTOR, x86_platform_ipi);
-#ifdef CONFIG_HAVE_KVM
- /* IPI for KVM to deliver posted interrupt */
- alloc_intr_gate(POSTED_INTR_VECTOR, kvm_posted_intr_ipi);
- /* IPI for KVM to deliver interrupt to wake up tasks */
- alloc_intr_gate(POSTED_INTR_WAKEUP_VECTOR, kvm_posted_intr_wakeup_ipi);
-#endif
-
- /* IPI vectors for APIC spurious and error interrupts */
- alloc_intr_gate(SPURIOUS_APIC_VECTOR, spurious_interrupt);
- alloc_intr_gate(ERROR_APIC_VECTOR, error_interrupt);
-
- /* IRQ work interrupts: */
-# ifdef CONFIG_IRQ_WORK
- alloc_intr_gate(IRQ_WORK_VECTOR, irq_work_interrupt);
-# endif
-
-#endif
-}
-
void __init native_init_IRQ(void)
{
- int i;
-
/* Execute any quirks before the call gates are initialised: */
x86_init.irqs.pre_vector_init();
- apic_intr_init();
-
- /*
- * Cover the whole vector space, no vector can escape
- * us. (some of these will be overridden and become
- * 'special' SMP interrupts)
- */
- i = FIRST_EXTERNAL_VECTOR;
-#ifndef CONFIG_X86_LOCAL_APIC
-#define first_system_vector NR_VECTORS
-#endif
- for_each_clear_bit_from(i, used_vectors, first_system_vector) {
- /* IA32_SYSCALL_VECTOR could be used in trap_init already. */
- set_intr_gate(i, irq_entries_start +
- 8 * (i - FIRST_EXTERNAL_VECTOR));
- }
-#ifdef CONFIG_X86_LOCAL_APIC
- for_each_clear_bit_from(i, used_vectors, NR_VECTORS)
- set_intr_gate(i, spurious_interrupt);
-#endif
+ idt_setup_apic_and_irq_gates();
if (!acpi_ioapic && !of_ioapic && nr_legacy_irqs())
setup_irq(2, &irq2);
diff --git a/arch/x86/kernel/jump_label.c b/arch/x86/kernel/jump_label.c
index c37bd0f39c70..ab4f491da2a9 100644
--- a/arch/x86/kernel/jump_label.c
+++ b/arch/x86/kernel/jump_label.c
@@ -105,11 +105,9 @@ static void __jump_label_transform(struct jump_entry *entry,
void arch_jump_label_transform(struct jump_entry *entry,
enum jump_label_type type)
{
- get_online_cpus();
mutex_lock(&text_mutex);
__jump_label_transform(entry, type, NULL, 0);
mutex_unlock(&text_mutex);
- put_online_cpus();
}
static enum {
diff --git a/arch/x86/kernel/kdebugfs.c b/arch/x86/kernel/kdebugfs.c
index 38b64587b31b..fd6f8fbbe6f2 100644
--- a/arch/x86/kernel/kdebugfs.c
+++ b/arch/x86/kernel/kdebugfs.c
@@ -33,7 +33,6 @@ static ssize_t setup_data_read(struct file *file, char __user *user_buf,
struct setup_data_node *node = file->private_data;
unsigned long remain;
loff_t pos = *ppos;
- struct page *pg;
void *p;
u64 pa;
@@ -47,18 +46,13 @@ static ssize_t setup_data_read(struct file *file, char __user *user_buf,
count = node->len - pos;
pa = node->paddr + sizeof(struct setup_data) + pos;
- pg = pfn_to_page((pa + count - 1) >> PAGE_SHIFT);
- if (PageHighMem(pg)) {
- p = ioremap_cache(pa, count);
- if (!p)
- return -ENXIO;
- } else
- p = __va(pa);
+ p = memremap(pa, count, MEMREMAP_WB);
+ if (!p)
+ return -ENOMEM;
remain = copy_to_user(user_buf, p, count);
- if (PageHighMem(pg))
- iounmap(p);
+ memunmap(p);
if (remain)
return -EFAULT;
@@ -109,7 +103,6 @@ static int __init create_setup_data_nodes(struct dentry *parent)
struct setup_data *data;
int error;
struct dentry *d;
- struct page *pg;
u64 pa_data;
int no = 0;
@@ -126,16 +119,12 @@ static int __init create_setup_data_nodes(struct dentry *parent)
goto err_dir;
}
- pg = pfn_to_page((pa_data+sizeof(*data)-1) >> PAGE_SHIFT);
- if (PageHighMem(pg)) {
- data = ioremap_cache(pa_data, sizeof(*data));
- if (!data) {
- kfree(node);
- error = -ENXIO;
- goto err_dir;
- }
- } else
- data = __va(pa_data);
+ data = memremap(pa_data, sizeof(*data), MEMREMAP_WB);
+ if (!data) {
+ kfree(node);
+ error = -ENOMEM;
+ goto err_dir;
+ }
node->paddr = pa_data;
node->type = data->type;
@@ -143,8 +132,7 @@ static int __init create_setup_data_nodes(struct dentry *parent)
error = create_setup_data_node(d, no, node);
pa_data = data->next;
- if (PageHighMem(pg))
- iounmap(data);
+ memunmap(data);
if (error)
goto err_dir;
no++;
diff --git a/arch/x86/kernel/kexec-bzimage64.c b/arch/x86/kernel/kexec-bzimage64.c
index 9d7fd5e6689a..fb095ba0c02f 100644
--- a/arch/x86/kernel/kexec-bzimage64.c
+++ b/arch/x86/kernel/kexec-bzimage64.c
@@ -100,14 +100,14 @@ static int setup_e820_entries(struct boot_params *params)
{
unsigned int nr_e820_entries;
- nr_e820_entries = e820_table_firmware->nr_entries;
+ nr_e820_entries = e820_table_kexec->nr_entries;
/* TODO: Pass entries more than E820_MAX_ENTRIES_ZEROPAGE in bootparams setup data */
if (nr_e820_entries > E820_MAX_ENTRIES_ZEROPAGE)
nr_e820_entries = E820_MAX_ENTRIES_ZEROPAGE;
params->e820_entries = nr_e820_entries;
- memcpy(&params->e820_table, &e820_table_firmware->entries, nr_e820_entries*sizeof(struct e820_entry));
+ memcpy(&params->e820_table, &e820_table_kexec->entries, nr_e820_entries*sizeof(struct e820_entry));
return 0;
}
diff --git a/arch/x86/kernel/kprobes/common.h b/arch/x86/kernel/kprobes/common.h
index db2182d63ed0..3fc0f9a794cb 100644
--- a/arch/x86/kernel/kprobes/common.h
+++ b/arch/x86/kernel/kprobes/common.h
@@ -3,6 +3,15 @@
/* Kprobes and Optprobes common header */
+#include <asm/asm.h>
+
+#ifdef CONFIG_FRAME_POINTER
+# define SAVE_RBP_STRING " push %" _ASM_BP "\n" \
+ " mov %" _ASM_SP ", %" _ASM_BP "\n"
+#else
+# define SAVE_RBP_STRING " push %" _ASM_BP "\n"
+#endif
+
#ifdef CONFIG_X86_64
#define SAVE_REGS_STRING \
/* Skip cs, ip, orig_ax. */ \
@@ -17,7 +26,7 @@
" pushq %r10\n" \
" pushq %r11\n" \
" pushq %rbx\n" \
- " pushq %rbp\n" \
+ SAVE_RBP_STRING \
" pushq %r12\n" \
" pushq %r13\n" \
" pushq %r14\n" \
@@ -48,7 +57,7 @@
" pushl %es\n" \
" pushl %ds\n" \
" pushl %eax\n" \
- " pushl %ebp\n" \
+ SAVE_RBP_STRING \
" pushl %edi\n" \
" pushl %esi\n" \
" pushl %edx\n" \
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index 6b877807598b..0742491cbb73 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -457,6 +457,8 @@ static int arch_copy_kprobe(struct kprobe *p)
int arch_prepare_kprobe(struct kprobe *p)
{
+ int ret;
+
if (alternatives_text_reserved(p->addr, p->addr))
return -EINVAL;
@@ -467,7 +469,13 @@ int arch_prepare_kprobe(struct kprobe *p)
if (!p->ainsn.insn)
return -ENOMEM;
- return arch_copy_kprobe(p);
+ ret = arch_copy_kprobe(p);
+ if (ret) {
+ free_insn_slot(p->ainsn.insn, 0);
+ p->ainsn.insn = NULL;
+ }
+
+ return ret;
}
void arch_arm_kprobe(struct kprobe *p)
@@ -1072,8 +1080,6 @@ int setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
* raw stack chunk with redzones:
*/
__memcpy(kcb->jprobes_stack, (kprobe_opcode_t *)addr, MIN_STACK_SIZE(addr));
- regs->flags &= ~X86_EFLAGS_IF;
- trace_hardirqs_off();
regs->ip = (unsigned long)(jp->entry);
/*
diff --git a/arch/x86/kernel/kprobes/opt.c b/arch/x86/kernel/kprobes/opt.c
index 901c640d152f..4f98aad38237 100644
--- a/arch/x86/kernel/kprobes/opt.c
+++ b/arch/x86/kernel/kprobes/opt.c
@@ -28,6 +28,7 @@
#include <linux/kdebug.h>
#include <linux/kallsyms.h>
#include <linux/ftrace.h>
+#include <linux/frame.h>
#include <asm/text-patching.h>
#include <asm/cacheflush.h>
@@ -38,6 +39,7 @@
#include <asm/insn.h>
#include <asm/debugreg.h>
#include <asm/set_memory.h>
+#include <asm/sections.h>
#include "common.h"
@@ -94,6 +96,7 @@ static void synthesize_set_arg1(kprobe_opcode_t *addr, unsigned long val)
}
asm (
+ "optprobe_template_func:\n"
".global optprobe_template_entry\n"
"optprobe_template_entry:\n"
#ifdef CONFIG_X86_64
@@ -131,7 +134,12 @@ asm (
" popf\n"
#endif
".global optprobe_template_end\n"
- "optprobe_template_end:\n");
+ "optprobe_template_end:\n"
+ ".type optprobe_template_func, @function\n"
+ ".size optprobe_template_func, .-optprobe_template_func\n");
+
+void optprobe_template_func(void);
+STACK_FRAME_NON_STANDARD(optprobe_template_func);
#define TMPL_MOVE_IDX \
((long)&optprobe_template_val - (long)&optprobe_template_entry)
@@ -244,10 +252,12 @@ static int can_optimize(unsigned long paddr)
/*
* Do not optimize in the entry code due to the unstable
- * stack handling.
+ * stack handling and registers setup.
*/
- if ((paddr >= (unsigned long)__entry_text_start) &&
- (paddr < (unsigned long)__entry_text_end))
+ if (((paddr >= (unsigned long)__entry_text_start) &&
+ (paddr < (unsigned long)__entry_text_end)) ||
+ ((paddr >= (unsigned long)__irqentry_text_start) &&
+ (paddr < (unsigned long)__irqentry_text_end)))
return 0;
/* Check there is enough space for a relative jump. */
diff --git a/arch/x86/kernel/ksysfs.c b/arch/x86/kernel/ksysfs.c
index 4afc67f5facc..8c1cc08f514f 100644
--- a/arch/x86/kernel/ksysfs.c
+++ b/arch/x86/kernel/ksysfs.c
@@ -16,8 +16,8 @@
#include <linux/stat.h>
#include <linux/slab.h>
#include <linux/mm.h>
+#include <linux/io.h>
-#include <asm/io.h>
#include <asm/setup.h>
static ssize_t version_show(struct kobject *kobj,
@@ -55,7 +55,7 @@ static struct bin_attribute *boot_params_data_attrs[] = {
NULL,
};
-static struct attribute_group boot_params_attr_group = {
+static const struct attribute_group boot_params_attr_group = {
.attrs = boot_params_version_attrs,
.bin_attrs = boot_params_data_attrs,
};
@@ -79,12 +79,12 @@ static int get_setup_data_paddr(int nr, u64 *paddr)
*paddr = pa_data;
return 0;
}
- data = ioremap_cache(pa_data, sizeof(*data));
+ data = memremap(pa_data, sizeof(*data), MEMREMAP_WB);
if (!data)
return -ENOMEM;
pa_data = data->next;
- iounmap(data);
+ memunmap(data);
i++;
}
return -EINVAL;
@@ -97,17 +97,17 @@ static int __init get_setup_data_size(int nr, size_t *size)
u64 pa_data = boot_params.hdr.setup_data;
while (pa_data) {
- data = ioremap_cache(pa_data, sizeof(*data));
+ data = memremap(pa_data, sizeof(*data), MEMREMAP_WB);
if (!data)
return -ENOMEM;
if (nr == i) {
*size = data->len;
- iounmap(data);
+ memunmap(data);
return 0;
}
pa_data = data->next;
- iounmap(data);
+ memunmap(data);
i++;
}
return -EINVAL;
@@ -127,12 +127,12 @@ static ssize_t type_show(struct kobject *kobj,
ret = get_setup_data_paddr(nr, &paddr);
if (ret)
return ret;
- data = ioremap_cache(paddr, sizeof(*data));
+ data = memremap(paddr, sizeof(*data), MEMREMAP_WB);
if (!data)
return -ENOMEM;
ret = sprintf(buf, "0x%x\n", data->type);
- iounmap(data);
+ memunmap(data);
return ret;
}
@@ -154,7 +154,7 @@ static ssize_t setup_data_data_read(struct file *fp,
ret = get_setup_data_paddr(nr, &paddr);
if (ret)
return ret;
- data = ioremap_cache(paddr, sizeof(*data));
+ data = memremap(paddr, sizeof(*data), MEMREMAP_WB);
if (!data)
return -ENOMEM;
@@ -170,15 +170,15 @@ static ssize_t setup_data_data_read(struct file *fp,
goto out;
ret = count;
- p = ioremap_cache(paddr + sizeof(*data), data->len);
+ p = memremap(paddr + sizeof(*data), data->len, MEMREMAP_WB);
if (!p) {
ret = -ENOMEM;
goto out;
}
memcpy(buf, p + off, count);
- iounmap(p);
+ memunmap(p);
out:
- iounmap(data);
+ memunmap(data);
return ret;
}
@@ -202,7 +202,7 @@ static struct bin_attribute *setup_data_data_attrs[] = {
NULL,
};
-static struct attribute_group setup_data_attr_group = {
+static const struct attribute_group setup_data_attr_group = {
.attrs = setup_data_type_attrs,
.bin_attrs = setup_data_data_attrs,
};
@@ -250,13 +250,13 @@ static int __init get_setup_data_total_num(u64 pa_data, int *nr)
*nr = 0;
while (pa_data) {
*nr += 1;
- data = ioremap_cache(pa_data, sizeof(*data));
+ data = memremap(pa_data, sizeof(*data), MEMREMAP_WB);
if (!data) {
ret = -ENOMEM;
goto out;
}
pa_data = data->next;
- iounmap(data);
+ memunmap(data);
}
out:
@@ -299,7 +299,7 @@ static int __init create_setup_data_nodes(struct kobject *parent)
return 0;
out_clean_nodes:
- for (j = i - 1; j > 0; j--)
+ for (j = i - 1; j >= 0; j--)
cleanup_setup_data_node(*(kobjp + j));
kfree(kobjp);
out_setup_data_kobj:
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 43e10d6fdbed..8bb9594d0761 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -117,7 +117,11 @@ static struct kvm_task_sleep_node *_find_apf_task(struct kvm_task_sleep_head *b,
return NULL;
}
-void kvm_async_pf_task_wait(u32 token)
+/*
+ * @interrupt_kernel: Is this called from a routine which interrupts the kernel
+ * (other than user space)?
+ */
+void kvm_async_pf_task_wait(u32 token, int interrupt_kernel)
{
u32 key = hash_32(token, KVM_TASK_SLEEP_HASHBITS);
struct kvm_task_sleep_head *b = &async_pf_sleepers[key];
@@ -140,7 +144,10 @@ void kvm_async_pf_task_wait(u32 token)
n.token = token;
n.cpu = smp_processor_id();
- n.halted = is_idle_task(current) || preempt_count() > 1;
+ n.halted = is_idle_task(current) ||
+ (IS_ENABLED(CONFIG_PREEMPT_COUNT)
+ ? preempt_count() > 1 || rcu_preempt_depth()
+ : interrupt_kernel);
init_swait_queue_head(&n.wq);
hlist_add_head(&n.link, &b->list);
raw_spin_unlock(&b->lock);
@@ -151,6 +158,8 @@ void kvm_async_pf_task_wait(u32 token)
if (hlist_unhashed(&n.link))
break;
+ rcu_irq_exit();
+
if (!n.halted) {
local_irq_enable();
schedule();
@@ -159,11 +168,11 @@ void kvm_async_pf_task_wait(u32 token)
/*
* We cannot reschedule. So halt.
*/
- rcu_irq_exit();
native_safe_halt();
local_irq_disable();
- rcu_irq_enter();
}
+
+ rcu_irq_enter();
}
if (!n.halted)
finish_swait(&n.wq, &wait);
@@ -178,7 +187,7 @@ static void apf_task_wake_one(struct kvm_task_sleep_node *n)
hlist_del_init(&n->link);
if (n->halted)
smp_send_reschedule(n->cpu);
- else if (swait_active(&n->wq))
+ else if (swq_has_sleeper(&n->wq))
swake_up(&n->wq);
}
@@ -261,12 +270,12 @@ do_async_page_fault(struct pt_regs *regs, unsigned long error_code)
switch (kvm_read_and_reset_pf_reason()) {
default:
- trace_do_page_fault(regs, error_code);
+ do_page_fault(regs, error_code);
break;
case KVM_PV_REASON_PAGE_NOT_PRESENT:
/* page is swapped out by the host. */
prev_state = exception_enter();
- kvm_async_pf_task_wait((u32)read_cr2());
+ kvm_async_pf_task_wait((u32)read_cr2(), !user_mode(regs));
exception_exit(prev_state);
break;
case KVM_PV_REASON_PAGE_READY:
@@ -330,7 +339,12 @@ static void kvm_guest_cpu_init(void)
#ifdef CONFIG_PREEMPT
pa |= KVM_ASYNC_PF_SEND_ALWAYS;
#endif
- wrmsrl(MSR_KVM_ASYNC_PF_EN, pa | KVM_ASYNC_PF_ENABLED);
+ pa |= KVM_ASYNC_PF_ENABLED;
+
+ /* Async page fault support for L1 hypervisor is optional */
+ if (wrmsr_safe(MSR_KVM_ASYNC_PF_EN,
+ (pa | KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT) & 0xffffffff, pa >> 32) < 0)
+ wrmsrl(MSR_KVM_ASYNC_PF_EN, pa);
__this_cpu_write(apf_reason.enabled, 1);
printk(KERN_INFO"KVM setup async PF for cpu %d\n",
smp_processor_id());
@@ -448,7 +462,7 @@ static int kvm_cpu_down_prepare(unsigned int cpu)
static void __init kvm_apf_trap_init(void)
{
- set_intr_gate(14, async_page_fault);
+ update_intr_gate(X86_TRAP_PF, async_page_fault);
}
void __init kvm_guest_init(void)
diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index d4a15831ac58..f0e64db18ac8 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -21,25 +21,47 @@
#include <asm/mmu_context.h>
#include <asm/syscalls.h>
+static void refresh_ldt_segments(void)
+{
+#ifdef CONFIG_X86_64
+ unsigned short sel;
+
+ /*
+ * Make sure that the cached DS and ES descriptors match the updated
+ * LDT.
+ */
+ savesegment(ds, sel);
+ if ((sel & SEGMENT_TI_MASK) == SEGMENT_LDT)
+ loadsegment(ds, sel);
+
+ savesegment(es, sel);
+ if ((sel & SEGMENT_TI_MASK) == SEGMENT_LDT)
+ loadsegment(es, sel);
+#endif
+}
+
/* context.lock is held for us, so we don't need any locking. */
-static void flush_ldt(void *current_mm)
+static void flush_ldt(void *__mm)
{
+ struct mm_struct *mm = __mm;
mm_context_t *pc;
- if (current->active_mm != current_mm)
+ if (this_cpu_read(cpu_tlbstate.loaded_mm) != mm)
return;
- pc = &current->active_mm->context;
- set_ldt(pc->ldt->entries, pc->ldt->size);
+ pc = &mm->context;
+ set_ldt(pc->ldt->entries, pc->ldt->nr_entries);
+
+ refresh_ldt_segments();
}
/* The caller must call finalize_ldt_struct on the result. LDT starts zeroed. */
-static struct ldt_struct *alloc_ldt_struct(unsigned int size)
+static struct ldt_struct *alloc_ldt_struct(unsigned int num_entries)
{
struct ldt_struct *new_ldt;
unsigned int alloc_size;
- if (size > LDT_ENTRIES)
+ if (num_entries > LDT_ENTRIES)
return NULL;
new_ldt = kmalloc(sizeof(struct ldt_struct), GFP_KERNEL);
@@ -47,7 +69,7 @@ static struct ldt_struct *alloc_ldt_struct(unsigned int size)
return NULL;
BUILD_BUG_ON(LDT_ENTRY_SIZE != sizeof(struct desc_struct));
- alloc_size = size * LDT_ENTRY_SIZE;
+ alloc_size = num_entries * LDT_ENTRY_SIZE;
/*
* Xen is very picky: it requires a page-aligned LDT that has no
@@ -65,14 +87,14 @@ static struct ldt_struct *alloc_ldt_struct(unsigned int size)
return NULL;
}
- new_ldt->size = size;
+ new_ldt->nr_entries = num_entries;
return new_ldt;
}
/* After calling this, the LDT is immutable. */
static void finalize_ldt_struct(struct ldt_struct *ldt)
{
- paravirt_alloc_ldt(ldt->entries, ldt->size);
+ paravirt_alloc_ldt(ldt->entries, ldt->nr_entries);
}
/* context.lock is held */
@@ -91,8 +113,8 @@ static void free_ldt_struct(struct ldt_struct *ldt)
if (likely(!ldt))
return;
- paravirt_free_ldt(ldt->entries, ldt->size);
- if (ldt->size * LDT_ENTRY_SIZE > PAGE_SIZE)
+ paravirt_free_ldt(ldt->entries, ldt->nr_entries);
+ if (ldt->nr_entries * LDT_ENTRY_SIZE > PAGE_SIZE)
vfree_atomic(ldt->entries);
else
free_page((unsigned long)ldt->entries);
@@ -122,14 +144,14 @@ int init_new_context_ldt(struct task_struct *tsk, struct mm_struct *mm)
goto out_unlock;
}
- new_ldt = alloc_ldt_struct(old_mm->context.ldt->size);
+ new_ldt = alloc_ldt_struct(old_mm->context.ldt->nr_entries);
if (!new_ldt) {
retval = -ENOMEM;
goto out_unlock;
}
memcpy(new_ldt->entries, old_mm->context.ldt->entries,
- new_ldt->size * LDT_ENTRY_SIZE);
+ new_ldt->nr_entries * LDT_ENTRY_SIZE);
finalize_ldt_struct(new_ldt);
mm->context.ldt = new_ldt;
@@ -152,9 +174,9 @@ void destroy_context_ldt(struct mm_struct *mm)
static int read_ldt(void __user *ptr, unsigned long bytecount)
{
- int retval;
- unsigned long size;
struct mm_struct *mm = current->mm;
+ unsigned long entries_size;
+ int retval;
mutex_lock(&mm->context.lock);
@@ -166,18 +188,18 @@ static int read_ldt(void __user *ptr, unsigned long bytecount)
if (bytecount > LDT_ENTRY_SIZE * LDT_ENTRIES)
bytecount = LDT_ENTRY_SIZE * LDT_ENTRIES;
- size = mm->context.ldt->size * LDT_ENTRY_SIZE;
- if (size > bytecount)
- size = bytecount;
+ entries_size = mm->context.ldt->nr_entries * LDT_ENTRY_SIZE;
+ if (entries_size > bytecount)
+ entries_size = bytecount;
- if (copy_to_user(ptr, mm->context.ldt->entries, size)) {
+ if (copy_to_user(ptr, mm->context.ldt->entries, entries_size)) {
retval = -EFAULT;
goto out_unlock;
}
- if (size != bytecount) {
+ if (entries_size != bytecount) {
/* Zero-fill the rest and pretend we read bytecount bytes. */
- if (clear_user(ptr + size, bytecount - size)) {
+ if (clear_user(ptr + entries_size, bytecount - entries_size)) {
retval = -EFAULT;
goto out_unlock;
}
@@ -208,7 +230,7 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
{
struct mm_struct *mm = current->mm;
struct ldt_struct *new_ldt, *old_ldt;
- unsigned int oldsize, newsize;
+ unsigned int old_nr_entries, new_nr_entries;
struct user_desc ldt_info;
struct desc_struct ldt;
int error;
@@ -247,17 +269,18 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
mutex_lock(&mm->context.lock);
- old_ldt = mm->context.ldt;
- oldsize = old_ldt ? old_ldt->size : 0;
- newsize = max(ldt_info.entry_number + 1, oldsize);
+ old_ldt = mm->context.ldt;
+ old_nr_entries = old_ldt ? old_ldt->nr_entries : 0;
+ new_nr_entries = max(ldt_info.entry_number + 1, old_nr_entries);
error = -ENOMEM;
- new_ldt = alloc_ldt_struct(newsize);
+ new_ldt = alloc_ldt_struct(new_nr_entries);
if (!new_ldt)
goto out_unlock;
if (old_ldt)
- memcpy(new_ldt->entries, old_ldt->entries, oldsize * LDT_ENTRY_SIZE);
+ memcpy(new_ldt->entries, old_ldt->entries, old_nr_entries * LDT_ENTRY_SIZE);
+
new_ldt->entries[ldt_info.entry_number] = ldt;
finalize_ldt_struct(new_ldt);
diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c
index 8c53c5d7a1bc..00bc751c861c 100644
--- a/arch/x86/kernel/machine_kexec_32.c
+++ b/arch/x86/kernel/machine_kexec_32.c
@@ -26,18 +26,6 @@
#include <asm/set_memory.h>
#include <asm/debugreg.h>
-static void set_idt(void *newidt, __u16 limit)
-{
- struct desc_ptr curidt;
-
- /* ia32 supports unaliged loads & stores */
- curidt.size = limit;
- curidt.address = (unsigned long)newidt;
-
- load_idt(&curidt);
-}
-
-
static void set_gdt(void *newgdt, __u16 limit)
{
struct desc_ptr curgdt;
@@ -245,7 +233,7 @@ void machine_kexec(struct kimage *image)
* If you want to load them you must set up your own idt & gdt.
*/
set_gdt(phys_to_virt(0), 0);
- set_idt(phys_to_virt(0), 0);
+ idt_invalidate(phys_to_virt(0));
/* now call it */
image->start = relocate_kernel_ptr((unsigned long)image->head,
diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c
index 6f5ca4ebe6e5..1f790cf9d38f 100644
--- a/arch/x86/kernel/machine_kexec_64.c
+++ b/arch/x86/kernel/machine_kexec_64.c
@@ -87,7 +87,7 @@ static int init_transition_pgtable(struct kimage *image, pgd_t *pgd)
set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE));
}
pte = pte_offset_kernel(pmd, vaddr);
- set_pte(pte, pfn_pte(paddr >> PAGE_SHIFT, PAGE_KERNEL_EXEC));
+ set_pte(pte, pfn_pte(paddr >> PAGE_SHIFT, PAGE_KERNEL_EXEC_NOENC));
return 0;
err:
free_transition_pgtable(image);
@@ -115,6 +115,7 @@ static int init_pgtable(struct kimage *image, unsigned long start_pgtable)
.alloc_pgt_page = alloc_pgt_page,
.context = image,
.page_flag = __PAGE_KERNEL_LARGE_EXEC,
+ .kernpg_flag = _KERNPG_TABLE_NOENC,
};
unsigned long mstart, mend;
pgd_t *level4p;
@@ -334,7 +335,8 @@ void machine_kexec(struct kimage *image)
image->start = relocate_kernel((unsigned long)image->head,
(unsigned long)page_list,
image->start,
- image->preserve_context);
+ image->preserve_context,
+ sme_active());
#ifdef CONFIG_KEXEC_JUMP
if (image->preserve_context)
@@ -347,7 +349,7 @@ void machine_kexec(struct kimage *image)
void arch_crash_save_vmcoreinfo(void)
{
VMCOREINFO_NUMBER(phys_base);
- VMCOREINFO_SYMBOL(init_level4_pgt);
+ VMCOREINFO_SYMBOL(init_top_pgt);
#ifdef CONFIG_NUMA
VMCOREINFO_SYMBOL(node_data);
@@ -602,3 +604,22 @@ void arch_kexec_unprotect_crashkres(void)
{
kexec_mark_crashkres(false);
}
+
+int arch_kexec_post_alloc_pages(void *vaddr, unsigned int pages, gfp_t gfp)
+{
+ /*
+ * If SME is active we need to be sure that kexec pages are
+ * not encrypted because when we boot to the new kernel the
+ * pages won't be accessed encrypted (initially).
+ */
+ return set_memory_decrypted((unsigned long)vaddr, pages);
+}
+
+void arch_kexec_pre_free_pages(void *vaddr, unsigned int pages)
+{
+ /*
+ * If SME is active we need to reset the pages back to being
+ * an encrypted mapping before freeing them.
+ */
+ set_memory_encrypted((unsigned long)vaddr, pages);
+}
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index f67bd3205df7..62e7d70aadd5 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -35,6 +35,7 @@
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/setup.h>
+#include <asm/unwind.h>
#if 0
#define DEBUGP(fmt, ...) \
@@ -213,7 +214,7 @@ int module_finalize(const Elf_Ehdr *hdr,
struct module *me)
{
const Elf_Shdr *s, *text = NULL, *alt = NULL, *locks = NULL,
- *para = NULL;
+ *para = NULL, *orc = NULL, *orc_ip = NULL;
char *secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
for (s = sechdrs; s < sechdrs + hdr->e_shnum; s++) {
@@ -225,6 +226,10 @@ int module_finalize(const Elf_Ehdr *hdr,
locks = s;
if (!strcmp(".parainstructions", secstrings + s->sh_name))
para = s;
+ if (!strcmp(".orc_unwind", secstrings + s->sh_name))
+ orc = s;
+ if (!strcmp(".orc_unwind_ip", secstrings + s->sh_name))
+ orc_ip = s;
}
if (alt) {
@@ -248,6 +253,10 @@ int module_finalize(const Elf_Ehdr *hdr,
/* make jump label nops */
jump_label_apply_nops(me);
+ if (orc && orc_ip)
+ unwind_module_init(me, (void *)orc_ip->sh_addr, orc_ip->sh_size,
+ (void *)orc->sh_addr, orc->sh_size);
+
return 0;
}
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index 0d904d759ff1..5cbb3177ed17 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -429,16 +429,16 @@ static inline void __init construct_default_ISA_mptable(int mpc_default_type)
}
}
-static struct mpf_intel *mpf_found;
+static unsigned long mpf_base;
static unsigned long __init get_mpc_size(unsigned long physptr)
{
struct mpc_table *mpc;
unsigned long size;
- mpc = early_ioremap(physptr, PAGE_SIZE);
+ mpc = early_memremap(physptr, PAGE_SIZE);
size = mpc->length;
- early_iounmap(mpc, PAGE_SIZE);
+ early_memunmap(mpc, PAGE_SIZE);
apic_printk(APIC_VERBOSE, " mpc: %lx-%lx\n", physptr, physptr + size);
return size;
@@ -450,7 +450,8 @@ static int __init check_physptr(struct mpf_intel *mpf, unsigned int early)
unsigned long size;
size = get_mpc_size(mpf->physptr);
- mpc = early_ioremap(mpf->physptr, size);
+ mpc = early_memremap(mpf->physptr, size);
+
/*
* Read the physical hardware table. Anything here will
* override the defaults.
@@ -461,10 +462,10 @@ static int __init check_physptr(struct mpf_intel *mpf, unsigned int early)
#endif
pr_err("BIOS bug, MP table errors detected!...\n");
pr_cont("... disabling SMP support. (tell your hw vendor)\n");
- early_iounmap(mpc, size);
+ early_memunmap(mpc, size);
return -1;
}
- early_iounmap(mpc, size);
+ early_memunmap(mpc, size);
if (early)
return -1;
@@ -497,12 +498,12 @@ static int __init check_physptr(struct mpf_intel *mpf, unsigned int early)
*/
void __init default_get_smp_config(unsigned int early)
{
- struct mpf_intel *mpf = mpf_found;
+ struct mpf_intel *mpf;
if (!smp_found_config)
return;
- if (!mpf)
+ if (!mpf_base)
return;
if (acpi_lapic && early)
@@ -515,6 +516,12 @@ void __init default_get_smp_config(unsigned int early)
if (acpi_lapic && acpi_ioapic)
return;
+ mpf = early_memremap(mpf_base, sizeof(*mpf));
+ if (!mpf) {
+ pr_err("MPTABLE: error mapping MP table\n");
+ return;
+ }
+
pr_info("Intel MultiProcessor Specification v1.%d\n",
mpf->specification);
#if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86_32)
@@ -529,7 +536,7 @@ void __init default_get_smp_config(unsigned int early)
/*
* Now see if we need to read further.
*/
- if (mpf->feature1 != 0) {
+ if (mpf->feature1) {
if (early) {
/*
* local APIC has default address
@@ -542,8 +549,10 @@ void __init default_get_smp_config(unsigned int early)
construct_default_ISA_mptable(mpf->feature1);
} else if (mpf->physptr) {
- if (check_physptr(mpf, early))
+ if (check_physptr(mpf, early)) {
+ early_memunmap(mpf, sizeof(*mpf));
return;
+ }
} else
BUG();
@@ -552,6 +561,8 @@ void __init default_get_smp_config(unsigned int early)
/*
* Only use the first configuration found.
*/
+
+ early_memunmap(mpf, sizeof(*mpf));
}
static void __init smp_reserve_memory(struct mpf_intel *mpf)
@@ -561,15 +572,16 @@ static void __init smp_reserve_memory(struct mpf_intel *mpf)
static int __init smp_scan_config(unsigned long base, unsigned long length)
{
- unsigned int *bp = phys_to_virt(base);
+ unsigned int *bp;
struct mpf_intel *mpf;
- unsigned long mem;
+ int ret = 0;
apic_printk(APIC_VERBOSE, "Scan for SMP in [mem %#010lx-%#010lx]\n",
base, base + length - 1);
BUILD_BUG_ON(sizeof(*mpf) != 16);
while (length > 0) {
+ bp = early_memremap(base, length);
mpf = (struct mpf_intel *)bp;
if ((*bp == SMP_MAGIC_IDENT) &&
(mpf->length == 1) &&
@@ -579,24 +591,26 @@ static int __init smp_scan_config(unsigned long base, unsigned long length)
#ifdef CONFIG_X86_LOCAL_APIC
smp_found_config = 1;
#endif
- mpf_found = mpf;
+ mpf_base = base;
- pr_info("found SMP MP-table at [mem %#010llx-%#010llx] mapped at [%p]\n",
- (unsigned long long) virt_to_phys(mpf),
- (unsigned long long) virt_to_phys(mpf) +
- sizeof(*mpf) - 1, mpf);
+ pr_info("found SMP MP-table at [mem %#010lx-%#010lx] mapped at [%p]\n",
+ base, base + sizeof(*mpf) - 1, mpf);
- mem = virt_to_phys(mpf);
- memblock_reserve(mem, sizeof(*mpf));
+ memblock_reserve(base, sizeof(*mpf));
if (mpf->physptr)
smp_reserve_memory(mpf);
- return 1;
+ ret = 1;
}
- bp += 4;
+ early_memunmap(bp, length);
+
+ if (ret)
+ break;
+
+ base += 16;
length -= 16;
}
- return 0;
+ return ret;
}
void __init default_find_smp_config(void)
@@ -838,29 +852,40 @@ static int __init update_mp_table(void)
char oem[10];
struct mpf_intel *mpf;
struct mpc_table *mpc, *mpc_new;
+ unsigned long size;
if (!enable_update_mptable)
return 0;
- mpf = mpf_found;
- if (!mpf)
+ if (!mpf_base)
return 0;
+ mpf = early_memremap(mpf_base, sizeof(*mpf));
+ if (!mpf) {
+ pr_err("MPTABLE: mpf early_memremap() failed\n");
+ return 0;
+ }
+
/*
* Now see if we need to go further.
*/
- if (mpf->feature1 != 0)
- return 0;
+ if (mpf->feature1)
+ goto do_unmap_mpf;
if (!mpf->physptr)
- return 0;
+ goto do_unmap_mpf;
- mpc = phys_to_virt(mpf->physptr);
+ size = get_mpc_size(mpf->physptr);
+ mpc = early_memremap(mpf->physptr, size);
+ if (!mpc) {
+ pr_err("MPTABLE: mpc early_memremap() failed\n");
+ goto do_unmap_mpf;
+ }
if (!smp_check_mpc(mpc, oem, str))
- return 0;
+ goto do_unmap_mpc;
- pr_info("mpf: %llx\n", (u64)virt_to_phys(mpf));
+ pr_info("mpf: %llx\n", (u64)mpf_base);
pr_info("physptr: %x\n", mpf->physptr);
if (mpc_new_phys && mpc->length > mpc_new_length) {
@@ -878,21 +903,32 @@ static int __init update_mp_table(void)
new = mpf_checksum((unsigned char *)mpc, mpc->length);
if (old == new) {
pr_info("mpc is readonly, please try alloc_mptable instead\n");
- return 0;
+ goto do_unmap_mpc;
}
pr_info("use in-position replacing\n");
} else {
+ mpc_new = early_memremap(mpc_new_phys, mpc_new_length);
+ if (!mpc_new) {
+ pr_err("MPTABLE: new mpc early_memremap() failed\n");
+ goto do_unmap_mpc;
+ }
mpf->physptr = mpc_new_phys;
- mpc_new = phys_to_virt(mpc_new_phys);
memcpy(mpc_new, mpc, mpc->length);
+ early_memunmap(mpc, size);
mpc = mpc_new;
+ size = mpc_new_length;
/* check if we can modify that */
if (mpc_new_phys - mpf->physptr) {
struct mpf_intel *mpf_new;
/* steal 16 bytes from [0, 1k) */
+ mpf_new = early_memremap(0x400 - 16, sizeof(*mpf_new));
+ if (!mpf_new) {
+ pr_err("MPTABLE: new mpf early_memremap() failed\n");
+ goto do_unmap_mpc;
+ }
pr_info("mpf new: %x\n", 0x400 - 16);
- mpf_new = phys_to_virt(0x400 - 16);
memcpy(mpf_new, mpf, 16);
+ early_memunmap(mpf, sizeof(*mpf));
mpf = mpf_new;
mpf->physptr = mpc_new_phys;
}
@@ -909,6 +945,12 @@ static int __init update_mp_table(void)
*/
replace_intsrc_all(mpc, mpc_new_phys, mpc_new_length);
+do_unmap_mpc:
+ early_memunmap(mpc, size);
+
+do_unmap_mpf:
+ early_memunmap(mpf, sizeof(*mpf));
+
return 0;
}
diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
index 446c8aa09b9b..35aafc95e4b8 100644
--- a/arch/x86/kernel/nmi.c
+++ b/arch/x86/kernel/nmi.c
@@ -39,26 +39,26 @@
#include <trace/events/nmi.h>
struct nmi_desc {
- spinlock_t lock;
+ raw_spinlock_t lock;
struct list_head head;
};
static struct nmi_desc nmi_desc[NMI_MAX] =
{
{
- .lock = __SPIN_LOCK_UNLOCKED(&nmi_desc[0].lock),
+ .lock = __RAW_SPIN_LOCK_UNLOCKED(&nmi_desc[0].lock),
.head = LIST_HEAD_INIT(nmi_desc[0].head),
},
{
- .lock = __SPIN_LOCK_UNLOCKED(&nmi_desc[1].lock),
+ .lock = __RAW_SPIN_LOCK_UNLOCKED(&nmi_desc[1].lock),
.head = LIST_HEAD_INIT(nmi_desc[1].head),
},
{
- .lock = __SPIN_LOCK_UNLOCKED(&nmi_desc[2].lock),
+ .lock = __RAW_SPIN_LOCK_UNLOCKED(&nmi_desc[2].lock),
.head = LIST_HEAD_INIT(nmi_desc[2].head),
},
{
- .lock = __SPIN_LOCK_UNLOCKED(&nmi_desc[3].lock),
+ .lock = __RAW_SPIN_LOCK_UNLOCKED(&nmi_desc[3].lock),
.head = LIST_HEAD_INIT(nmi_desc[3].head),
},
@@ -163,7 +163,7 @@ int __register_nmi_handler(unsigned int type, struct nmiaction *action)
init_irq_work(&action->irq_work, nmi_max_handler);
- spin_lock_irqsave(&desc->lock, flags);
+ raw_spin_lock_irqsave(&desc->lock, flags);
/*
* Indicate if there are multiple registrations on the
@@ -181,7 +181,7 @@ int __register_nmi_handler(unsigned int type, struct nmiaction *action)
else
list_add_tail_rcu(&action->list, &desc->head);
- spin_unlock_irqrestore(&desc->lock, flags);
+ raw_spin_unlock_irqrestore(&desc->lock, flags);
return 0;
}
EXPORT_SYMBOL(__register_nmi_handler);
@@ -192,7 +192,7 @@ void unregister_nmi_handler(unsigned int type, const char *name)
struct nmiaction *n;
unsigned long flags;
- spin_lock_irqsave(&desc->lock, flags);
+ raw_spin_lock_irqsave(&desc->lock, flags);
list_for_each_entry_rcu(n, &desc->head, list) {
/*
@@ -207,7 +207,7 @@ void unregister_nmi_handler(unsigned int type, const char *name)
}
}
- spin_unlock_irqrestore(&desc->lock, flags);
+ raw_spin_unlock_irqrestore(&desc->lock, flags);
synchronize_rcu();
}
EXPORT_SYMBOL_GPL(unregister_nmi_handler);
diff --git a/arch/x86/kernel/nmi_selftest.c b/arch/x86/kernel/nmi_selftest.c
index 6d9582ec0324..d27f8d84c4ff 100644
--- a/arch/x86/kernel/nmi_selftest.c
+++ b/arch/x86/kernel/nmi_selftest.c
@@ -78,7 +78,7 @@ static void __init test_nmi_ipi(struct cpumask *mask)
/* Don't wait longer than a second */
timeout = USEC_PER_SEC;
- while (!cpumask_empty(mask) && timeout--)
+ while (!cpumask_empty(mask) && --timeout)
udelay(1);
/* What happens if we timeout, do we still unregister?? */
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 3586996fc50d..19a3e8f961c7 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -319,9 +319,6 @@ __visible struct pv_irq_ops pv_irq_ops = {
.irq_enable = __PV_IS_CALLEE_SAVE(native_irq_enable),
.safe_halt = native_safe_halt,
.halt = native_halt,
-#ifdef CONFIG_X86_64
- .adjust_exception_frame = paravirt_nop,
-#endif
};
__visible struct pv_cpu_ops pv_cpu_ops = {
@@ -330,7 +327,6 @@ __visible struct pv_cpu_ops pv_cpu_ops = {
.set_debugreg = native_set_debugreg,
.read_cr0 = native_read_cr0,
.write_cr0 = native_write_cr0,
- .read_cr4 = native_read_cr4,
.write_cr4 = native_write_cr4,
#ifdef CONFIG_X86_64
.read_cr8 = native_read_cr8,
@@ -346,7 +342,6 @@ __visible struct pv_cpu_ops pv_cpu_ops = {
.set_ldt = native_set_ldt,
.load_gdt = native_load_gdt,
.load_idt = native_load_idt,
- .store_idt = native_store_idt,
.store_tr = native_store_tr,
.load_tls = native_load_tls,
#ifdef CONFIG_X86_64
@@ -391,7 +386,7 @@ struct pv_mmu_ops pv_mmu_ops __ro_after_init = {
.read_cr2 = native_read_cr2,
.write_cr2 = native_write_cr2,
- .read_cr3 = native_read_cr3,
+ .read_cr3 = __native_read_cr3,
.write_cr3 = native_write_cr3,
.flush_tlb_user = native_flush_tlb,
@@ -414,8 +409,6 @@ struct pv_mmu_ops pv_mmu_ops __ro_after_init = {
.set_pte = native_set_pte,
.set_pte_at = native_set_pte_at,
.set_pmd = native_set_pmd,
- .set_pmd_at = native_set_pmd_at,
- .pte_update = paravirt_nop,
.ptep_modify_prot_start = __ptep_modify_prot_start,
.ptep_modify_prot_commit = __ptep_modify_prot_commit,
@@ -427,7 +420,6 @@ struct pv_mmu_ops pv_mmu_ops __ro_after_init = {
.pmd_clear = native_pmd_clear,
#endif
.set_pud = native_set_pud,
- .set_pud_at = native_set_pud_at,
.pmd_val = PTE_IDENT,
.make_pmd = PTE_IDENT,
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index fda7867046d0..5286a4a92cf7 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -50,6 +50,8 @@
#include <asm/x86_init.h>
#include <asm/iommu_table.h>
+#define CALGARY_MAPPING_ERROR 0
+
#ifdef CONFIG_CALGARY_IOMMU_ENABLED_BY_DEFAULT
int use_calgary __read_mostly = 1;
#else
@@ -252,7 +254,7 @@ static unsigned long iommu_range_alloc(struct device *dev,
if (panic_on_overflow)
panic("Calgary: fix the allocator.\n");
else
- return DMA_ERROR_CODE;
+ return CALGARY_MAPPING_ERROR;
}
}
@@ -272,10 +274,10 @@ static dma_addr_t iommu_alloc(struct device *dev, struct iommu_table *tbl,
entry = iommu_range_alloc(dev, tbl, npages);
- if (unlikely(entry == DMA_ERROR_CODE)) {
+ if (unlikely(entry == CALGARY_MAPPING_ERROR)) {
pr_warn("failed to allocate %u pages in iommu %p\n",
npages, tbl);
- return DMA_ERROR_CODE;
+ return CALGARY_MAPPING_ERROR;
}
/* set the return dma address */
@@ -295,7 +297,7 @@ static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr,
unsigned long flags;
/* were we called with bad_dma_address? */
- badend = DMA_ERROR_CODE + (EMERGENCY_PAGES * PAGE_SIZE);
+ badend = CALGARY_MAPPING_ERROR + (EMERGENCY_PAGES * PAGE_SIZE);
if (unlikely(dma_addr < badend)) {
WARN(1, KERN_ERR "Calgary: driver tried unmapping bad DMA "
"address 0x%Lx\n", dma_addr);
@@ -380,7 +382,7 @@ static int calgary_map_sg(struct device *dev, struct scatterlist *sg,
npages = iommu_num_pages(vaddr, s->length, PAGE_SIZE);
entry = iommu_range_alloc(dev, tbl, npages);
- if (entry == DMA_ERROR_CODE) {
+ if (entry == CALGARY_MAPPING_ERROR) {
/* makes sure unmap knows to stop */
s->dma_length = 0;
goto error;
@@ -398,7 +400,7 @@ static int calgary_map_sg(struct device *dev, struct scatterlist *sg,
error:
calgary_unmap_sg(dev, sg, nelems, dir, 0);
for_each_sg(sg, s, nelems, i) {
- sg->dma_address = DMA_ERROR_CODE;
+ sg->dma_address = CALGARY_MAPPING_ERROR;
sg->dma_length = 0;
}
return 0;
@@ -453,7 +455,7 @@ static void* calgary_alloc_coherent(struct device *dev, size_t size,
/* set up tces to cover the allocated range */
mapping = iommu_alloc(dev, tbl, ret, npages, DMA_BIDIRECTIONAL);
- if (mapping == DMA_ERROR_CODE)
+ if (mapping == CALGARY_MAPPING_ERROR)
goto free;
*dma_handle = mapping;
return ret;
@@ -478,6 +480,11 @@ static void calgary_free_coherent(struct device *dev, size_t size,
free_pages((unsigned long)vaddr, get_order(size));
}
+static int calgary_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return dma_addr == CALGARY_MAPPING_ERROR;
+}
+
static const struct dma_map_ops calgary_dma_ops = {
.alloc = calgary_alloc_coherent,
.free = calgary_free_coherent,
@@ -485,6 +492,8 @@ static const struct dma_map_ops calgary_dma_ops = {
.unmap_sg = calgary_unmap_sg,
.map_page = calgary_map_page,
.unmap_page = calgary_unmap_page,
+ .mapping_error = calgary_mapping_error,
+ .dma_supported = x86_dma_supported,
};
static inline void __iomem * busno_to_bbar(unsigned char num)
@@ -732,7 +741,7 @@ static void __init calgary_reserve_regions(struct pci_dev *dev)
struct iommu_table *tbl = pci_iommu(dev->bus);
/* reserve EMERGENCY_PAGES from bad_dma_address and up */
- iommu_range_reserve(tbl, DMA_ERROR_CODE, EMERGENCY_PAGES);
+ iommu_range_reserve(tbl, CALGARY_MAPPING_ERROR, EMERGENCY_PAGES);
/* avoid the BIOS/VGA first 640KB-1MB region */
/* for CalIOC2 - avoid the entire first MB */
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 3a216ec869cd..0accc2404b92 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -93,9 +93,12 @@ again:
if (gfpflags_allow_blocking(flag)) {
page = dma_alloc_from_contiguous(dev, count, get_order(size),
flag);
- if (page && page_to_phys(page) + size > dma_mask) {
- dma_release_from_contiguous(dev, page, count);
- page = NULL;
+ if (page) {
+ addr = phys_to_dma(dev, page_to_phys(page));
+ if (addr + size > dma_mask) {
+ dma_release_from_contiguous(dev, page, count);
+ page = NULL;
+ }
}
}
/* fallback */
@@ -104,7 +107,7 @@ again:
if (!page)
return NULL;
- addr = page_to_phys(page);
+ addr = phys_to_dma(dev, page_to_phys(page));
if (addr + size > dma_mask) {
__free_pages(page, get_order(size));
@@ -213,10 +216,8 @@ static __init int iommu_setup(char *p)
}
early_param("iommu", iommu_setup);
-int dma_supported(struct device *dev, u64 mask)
+int x86_dma_supported(struct device *dev, u64 mask)
{
- const struct dma_map_ops *ops = get_dma_ops(dev);
-
#ifdef CONFIG_PCI
if (mask > 0xffffffff && forbid_dac > 0) {
dev_info(dev, "PCI: Disallowing DAC for device\n");
@@ -224,9 +225,6 @@ int dma_supported(struct device *dev, u64 mask)
}
#endif
- if (ops->dma_supported)
- return ops->dma_supported(dev, mask);
-
/* Copied from i386. Doesn't make much sense, because it will
only work for pci_alloc_coherent.
The caller just has to use GFP_DMA in this case. */
@@ -252,7 +250,6 @@ int dma_supported(struct device *dev, u64 mask)
return 1;
}
-EXPORT_SYMBOL(dma_supported);
static int __init pci_iommu_init(void)
{
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index a88952ef371c..4fc3cb60ea11 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -11,6 +11,8 @@
#include <asm/iommu.h>
#include <asm/dma.h>
+#define NOMMU_MAPPING_ERROR 0
+
static int
check_addr(char *name, struct device *hwdev, dma_addr_t bus, size_t size)
{
@@ -30,10 +32,10 @@ static dma_addr_t nommu_map_page(struct device *dev, struct page *page,
enum dma_data_direction dir,
unsigned long attrs)
{
- dma_addr_t bus = page_to_phys(page) + offset;
+ dma_addr_t bus = phys_to_dma(dev, page_to_phys(page)) + offset;
WARN_ON(size == 0);
if (!check_addr("map_single", dev, bus, size))
- return DMA_ERROR_CODE;
+ return NOMMU_MAPPING_ERROR;
flush_write_buffers();
return bus;
}
@@ -88,6 +90,11 @@ static void nommu_sync_sg_for_device(struct device *dev,
flush_write_buffers();
}
+static int nommu_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return dma_addr == NOMMU_MAPPING_ERROR;
+}
+
const struct dma_map_ops nommu_dma_ops = {
.alloc = dma_generic_alloc_coherent,
.free = dma_generic_free_coherent,
@@ -96,4 +103,6 @@ const struct dma_map_ops nommu_dma_ops = {
.sync_single_for_device = nommu_sync_single_for_device,
.sync_sg_for_device = nommu_sync_sg_for_device,
.is_phys = 1,
+ .mapping_error = nommu_mapping_error,
+ .dma_supported = x86_dma_supported,
};
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index 1e23577e17cf..677077510e30 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -6,12 +6,14 @@
#include <linux/swiotlb.h>
#include <linux/bootmem.h>
#include <linux/dma-mapping.h>
+#include <linux/mem_encrypt.h>
#include <asm/iommu.h>
#include <asm/swiotlb.h>
#include <asm/dma.h>
#include <asm/xen/swiotlb-xen.h>
#include <asm/iommu_table.h>
+
int swiotlb __read_mostly;
void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
@@ -79,8 +81,8 @@ IOMMU_INIT_FINISH(pci_swiotlb_detect_override,
pci_swiotlb_late_init);
/*
- * if 4GB or more detected (and iommu=off not set) return 1
- * and set swiotlb to 1.
+ * If 4GB or more detected (and iommu=off not set) or if SME is active
+ * then set swiotlb to 1 and return 1.
*/
int __init pci_swiotlb_detect_4gb(void)
{
@@ -89,6 +91,15 @@ int __init pci_swiotlb_detect_4gb(void)
if (!no_iommu && max_possible_pfn > MAX_DMA32_PFN)
swiotlb = 1;
#endif
+
+ /*
+ * If SME is active then swiotlb will be set to 1 so that bounce
+ * buffers are allocated and used for devices that do not support
+ * the addressing range required for the encryption mask.
+ */
+ if (sme_active())
+ swiotlb = 1;
+
return swiotlb;
}
IOMMU_INIT(pci_swiotlb_detect_4gb,
diff --git a/arch/x86/kernel/platform-quirks.c b/arch/x86/kernel/platform-quirks.c
index 91271122f0df..502a77d0adb0 100644
--- a/arch/x86/kernel/platform-quirks.c
+++ b/arch/x86/kernel/platform-quirks.c
@@ -16,7 +16,6 @@ void __init x86_early_init_platform_quirks(void)
x86_platform.legacy.reserve_bios_regions = 1;
break;
case X86_SUBARCH_XEN:
- case X86_SUBARCH_LGUEST:
x86_platform.legacy.devices.pnpbios = 0;
x86_platform.legacy.rtc = 0;
break;
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 3ca198080ea9..bd6b85fac666 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -355,6 +355,7 @@ bool xen_set_default_idle(void)
return ret;
}
#endif
+
void stop_this_cpu(void *dummy)
{
local_irq_disable();
@@ -365,8 +366,20 @@ void stop_this_cpu(void *dummy)
disable_local_APIC();
mcheck_cpu_clear(this_cpu_ptr(&cpu_info));
- for (;;)
- halt();
+ for (;;) {
+ /*
+ * Use wbinvd followed by hlt to stop the processor. This
+ * provides support for kexec on a processor that supports
+ * SME. With kexec, going from SME inactive to SME active
+ * requires clearing cache entries so that addresses without
+ * the encryption bit set don't corrupt the same physical
+ * address that has the encryption bit set when caches are
+ * flushed. To achieve this a wbinvd is performed followed by
+ * a hlt. Even if the processor is not in the kexec/SME
+ * scenario this only adds a wbinvd to a halting processor.
+ */
+ asm volatile("wbinvd; hlt" : : : "memory");
+ }
}
/*
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index ffeae818aa7a..11966251cd42 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -56,7 +56,7 @@
#include <asm/debugreg.h>
#include <asm/switch_to.h>
#include <asm/vm86.h>
-#include <asm/intel_rdt.h>
+#include <asm/intel_rdt_sched.h>
#include <asm/proto.h>
void __show_regs(struct pt_regs *regs, int all)
@@ -68,7 +68,7 @@ void __show_regs(struct pt_regs *regs, int all)
if (user_mode(regs)) {
sp = regs->sp;
- ss = regs->ss & 0xffff;
+ ss = regs->ss;
gs = get_user_gs(regs);
} else {
sp = kernel_stack_pointer(regs);
@@ -92,7 +92,7 @@ void __show_regs(struct pt_regs *regs, int all)
cr0 = read_cr0();
cr2 = read_cr2();
- cr3 = read_cr3();
+ cr3 = __read_cr3();
cr4 = __read_cr4();
printk(KERN_DEFAULT "CR0: %08lx CR2: %08lx CR3: %08lx CR4: %08lx\n",
cr0, cr2, cr3, cr4);
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index b6840bf3940b..302e7b2572d1 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -52,7 +52,7 @@
#include <asm/switch_to.h>
#include <asm/xen/hypervisor.h>
#include <asm/vdso.h>
-#include <asm/intel_rdt.h>
+#include <asm/intel_rdt_sched.h>
#include <asm/unistd.h>
#ifdef CONFIG_IA32_EMULATION
/* Not included via unistd.h */
@@ -69,8 +69,7 @@ void __show_regs(struct pt_regs *regs, int all)
unsigned int fsindex, gsindex;
unsigned int ds, cs, es;
- printk(KERN_DEFAULT "RIP: %04lx:%pS\n", regs->cs & 0xffff,
- (void *)regs->ip);
+ printk(KERN_DEFAULT "RIP: %04lx:%pS\n", regs->cs, (void *)regs->ip);
printk(KERN_DEFAULT "RSP: %04lx:%016lx EFLAGS: %08lx", regs->ss,
regs->sp, regs->flags);
if (regs->orig_ax != -1)
@@ -104,7 +103,7 @@ void __show_regs(struct pt_regs *regs, int all)
cr0 = read_cr0();
cr2 = read_cr2();
- cr3 = read_cr3();
+ cr3 = __read_cr3();
cr4 = __read_cr4();
printk(KERN_DEFAULT "FS: %016lx(%04x) GS:%016lx(%04x) knlGS:%016lx\n",
@@ -142,13 +141,130 @@ void release_thread(struct task_struct *dead_task)
pr_warn("WARNING: dead process %s still has LDT? <%p/%d>\n",
dead_task->comm,
dead_task->mm->context.ldt->entries,
- dead_task->mm->context.ldt->size);
+ dead_task->mm->context.ldt->nr_entries);
BUG();
}
#endif
}
}
+enum which_selector {
+ FS,
+ GS
+};
+
+/*
+ * Saves the FS or GS base for an outgoing thread if FSGSBASE extensions are
+ * not available. The goal is to be reasonably fast on non-FSGSBASE systems.
+ * It's forcibly inlined because it'll generate better code and this function
+ * is hot.
+ */
+static __always_inline void save_base_legacy(struct task_struct *prev_p,
+ unsigned short selector,
+ enum which_selector which)
+{
+ if (likely(selector == 0)) {
+ /*
+ * On Intel (without X86_BUG_NULL_SEG), the segment base could
+ * be the pre-existing saved base or it could be zero. On AMD
+ * (with X86_BUG_NULL_SEG), the segment base could be almost
+ * anything.
+ *
+ * This branch is very hot (it's hit twice on almost every
+ * context switch between 64-bit programs), and avoiding
+ * the RDMSR helps a lot, so we just assume that whatever
+ * value is already saved is correct. This matches historical
+ * Linux behavior, so it won't break existing applications.
+ *
+ * To avoid leaking state, on non-X86_BUG_NULL_SEG CPUs, if we
+ * report that the base is zero, it needs to actually be zero:
+ * see the corresponding logic in load_seg_legacy.
+ */
+ } else {
+ /*
+ * If the selector is 1, 2, or 3, then the base is zero on
+ * !X86_BUG_NULL_SEG CPUs and could be anything on
+ * X86_BUG_NULL_SEG CPUs. In the latter case, Linux
+ * has never attempted to preserve the base across context
+ * switches.
+ *
+ * If selector > 3, then it refers to a real segment, and
+ * saving the base isn't necessary.
+ */
+ if (which == FS)
+ prev_p->thread.fsbase = 0;
+ else
+ prev_p->thread.gsbase = 0;
+ }
+}
+
+static __always_inline void save_fsgs(struct task_struct *task)
+{
+ savesegment(fs, task->thread.fsindex);
+ savesegment(gs, task->thread.gsindex);
+ save_base_legacy(task, task->thread.fsindex, FS);
+ save_base_legacy(task, task->thread.gsindex, GS);
+}
+
+static __always_inline void loadseg(enum which_selector which,
+ unsigned short sel)
+{
+ if (which == FS)
+ loadsegment(fs, sel);
+ else
+ load_gs_index(sel);
+}
+
+static __always_inline void load_seg_legacy(unsigned short prev_index,
+ unsigned long prev_base,
+ unsigned short next_index,
+ unsigned long next_base,
+ enum which_selector which)
+{
+ if (likely(next_index <= 3)) {
+ /*
+ * The next task is using 64-bit TLS, is not using this
+ * segment at all, or is having fun with arcane CPU features.
+ */
+ if (next_base == 0) {
+ /*
+ * Nasty case: on AMD CPUs, we need to forcibly zero
+ * the base.
+ */
+ if (static_cpu_has_bug(X86_BUG_NULL_SEG)) {
+ loadseg(which, __USER_DS);
+ loadseg(which, next_index);
+ } else {
+ /*
+ * We could try to exhaustively detect cases
+ * under which we can skip the segment load,
+ * but there's really only one case that matters
+ * for performance: if both the previous and
+ * next states are fully zeroed, we can skip
+ * the load.
+ *
+ * (This assumes that prev_base == 0 has no
+ * false positives. This is the case on
+ * Intel-style CPUs.)
+ */
+ if (likely(prev_index | next_index | prev_base))
+ loadseg(which, next_index);
+ }
+ } else {
+ if (prev_index != next_index)
+ loadseg(which, next_index);
+ wrmsrl(which == FS ? MSR_FS_BASE : MSR_KERNEL_GS_BASE,
+ next_base);
+ }
+ } else {
+ /*
+ * The next task is using a real segment. Loading the selector
+ * is sufficient.
+ */
+ loadseg(which, next_index);
+ }
+}
+
int copy_thread_tls(unsigned long clone_flags, unsigned long sp,
unsigned long arg, struct task_struct *p, unsigned long tls)
{
@@ -229,10 +345,19 @@ start_thread_common(struct pt_regs *regs, unsigned long new_ip,
unsigned long new_sp,
unsigned int _cs, unsigned int _ss, unsigned int _ds)
{
+ WARN_ON_ONCE(regs != current_pt_regs());
+
+ if (static_cpu_has(X86_BUG_NULL_SEG)) {
+ /* Loading zero below won't clear the base. */
+ loadsegment(fs, __USER_DS);
+ load_gs_index(__USER_DS);
+ }
+
loadsegment(fs, 0);
loadsegment(es, _ds);
loadsegment(ds, _ds);
load_gs_index(0);
+
regs->ip = new_ip;
regs->sp = new_sp;
regs->cs = _cs;
@@ -277,7 +402,9 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
struct fpu *next_fpu = &next->fpu;
int cpu = smp_processor_id();
struct tss_struct *tss = &per_cpu(cpu_tss, cpu);
- unsigned prev_fsindex, prev_gsindex;
+
+ WARN_ON_ONCE(IS_ENABLED(CONFIG_DEBUG_ENTRY) &&
+ this_cpu_read(irq_count) != -1);
switch_fpu_prepare(prev_fpu, cpu);
@@ -286,8 +413,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
*
* (e.g. xen_load_tls())
*/
- savesegment(fs, prev_fsindex);
- savesegment(gs, prev_gsindex);
+ save_fsgs(prev_p);
/*
* Load TLS before restoring any segments so that segment loads
@@ -326,108 +452,10 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
if (unlikely(next->ds | prev->ds))
loadsegment(ds, next->ds);
- /*
- * Switch FS and GS.
- *
- * These are even more complicated than DS and ES: they have
- * 64-bit bases are that controlled by arch_prctl. The bases
- * don't necessarily match the selectors, as user code can do
- * any number of things to cause them to be inconsistent.
- *
- * We don't promise to preserve the bases if the selectors are
- * nonzero. We also don't promise to preserve the base if the
- * selector is zero and the base doesn't match whatever was
- * most recently passed to ARCH_SET_FS/GS. (If/when the
- * FSGSBASE instructions are enabled, we'll need to offer
- * stronger guarantees.)
- *
- * As an invariant,
- * (fsbase != 0 && fsindex != 0) || (gsbase != 0 && gsindex != 0) is
- * impossible.
- */
- if (next->fsindex) {
- /* Loading a nonzero value into FS sets the index and base. */
- loadsegment(fs, next->fsindex);
- } else {
- if (next->fsbase) {
- /* Next index is zero but next base is nonzero. */
- if (prev_fsindex)
- loadsegment(fs, 0);
- wrmsrl(MSR_FS_BASE, next->fsbase);
- } else {
- /* Next base and index are both zero. */
- if (static_cpu_has_bug(X86_BUG_NULL_SEG)) {
- /*
- * We don't know the previous base and can't
- * find out without RDMSR. Forcibly clear it.
- */
- loadsegment(fs, __USER_DS);
- loadsegment(fs, 0);
- } else {
- /*
- * If the previous index is zero and ARCH_SET_FS
- * didn't change the base, then the base is
- * also zero and we don't need to do anything.
- */
- if (prev->fsbase || prev_fsindex)
- loadsegment(fs, 0);
- }
- }
- }
- /*
- * Save the old state and preserve the invariant.
- * NB: if prev_fsindex == 0, then we can't reliably learn the base
- * without RDMSR because Intel user code can zero it without telling
- * us and AMD user code can program any 32-bit value without telling
- * us.
- */
- if (prev_fsindex)
- prev->fsbase = 0;
- prev->fsindex = prev_fsindex;
-
- if (next->gsindex) {
- /* Loading a nonzero value into GS sets the index and base. */
- load_gs_index(next->gsindex);
- } else {
- if (next->gsbase) {
- /* Next index is zero but next base is nonzero. */
- if (prev_gsindex)
- load_gs_index(0);
- wrmsrl(MSR_KERNEL_GS_BASE, next->gsbase);
- } else {
- /* Next base and index are both zero. */
- if (static_cpu_has_bug(X86_BUG_NULL_SEG)) {
- /*
- * We don't know the previous base and can't
- * find out without RDMSR. Forcibly clear it.
- *
- * This contains a pointless SWAPGS pair.
- * Fixing it would involve an explicit check
- * for Xen or a new pvop.
- */
- load_gs_index(__USER_DS);
- load_gs_index(0);
- } else {
- /*
- * If the previous index is zero and ARCH_SET_GS
- * didn't change the base, then the base is
- * also zero and we don't need to do anything.
- */
- if (prev->gsbase || prev_gsindex)
- load_gs_index(0);
- }
- }
- }
- /*
- * Save the old state and preserve the invariant.
- * NB: if prev_gsindex == 0, then we can't reliably learn the base
- * without RDMSR because Intel user code can zero it without telling
- * us and AMD user code can program any 32-bit value without telling
- * us.
- */
- if (prev_gsindex)
- prev->gsbase = 0;
- prev->gsindex = prev_gsindex;
+ load_seg_legacy(prev->fsindex, prev->fsbase,
+ next->fsindex, next->fsbase, FS);
+ load_seg_legacy(prev->gsindex, prev->gsbase,
+ next->gsindex, next->gsbase, GS);
switch_fpu_finish(next_fpu, cpu);
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index 0bee04d41bed..eaa591cfd98b 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -1,6 +1,7 @@
/*
* This file contains work-arounds for x86 and x86_64 platform bugs.
*/
+#include <linux/dmi.h>
#include <linux/pci.h>
#include <linux/irq.h>
@@ -656,3 +657,12 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fc0, quirk_intel_brickland_xeon_
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2083, quirk_intel_purley_xeon_ras_cap);
#endif
#endif
+
+bool x86_apple_machine;
+EXPORT_SYMBOL(x86_apple_machine);
+
+void __init early_platform_quirks(void)
+{
+ x86_apple_machine = dmi_match(DMI_SYS_VENDOR, "Apple Inc.") ||
+ dmi_match(DMI_SYS_VENDOR, "Apple Computer, Inc.");
+}
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 2544700a2a87..add33f600531 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -9,6 +9,7 @@
#include <linux/sched.h>
#include <linux/tboot.h>
#include <linux/delay.h>
+#include <linux/frame.h>
#include <acpi/reboot.h>
#include <asm/io.h>
#include <asm/apic.h>
@@ -37,8 +38,6 @@
void (*pm_power_off)(void);
EXPORT_SYMBOL(pm_power_off);
-static const struct desc_ptr no_idt = {};
-
/*
* This is set if we need to go through the 'emergency' path.
* When machine_emergency_restart() is called, we may be on
@@ -106,6 +105,10 @@ void __noreturn machine_real_restart(unsigned int type)
load_cr3(initial_page_table);
#else
write_cr3(real_mode_header->trampoline_pgd);
+
+ /* Exiting long mode will fail if CR4.PCIDE is set. */
+ if (static_cpu_has(X86_FEATURE_PCID))
+ cr4_clear_bits(X86_CR4_PCIDE);
#endif
/* Jump to the identity-mapped low memory code */
@@ -123,6 +126,7 @@ void __noreturn machine_real_restart(unsigned int type)
#ifdef CONFIG_APM_MODULE
EXPORT_SYMBOL(machine_real_restart);
#endif
+STACK_FRAME_NON_STANDARD(machine_real_restart);
/*
* Some Apple MacBook and MacBookPro's needs reboot=p to be able to reboot
@@ -150,7 +154,7 @@ static int __init set_kbd_reboot(const struct dmi_system_id *d)
/*
* This is a single dmi_table handling all reboot quirks.
*/
-static struct dmi_system_id __initdata reboot_dmi_table[] = {
+static const struct dmi_system_id reboot_dmi_table[] __initconst = {
/* Acer */
{ /* Handle reboot issue on Acer Aspire one */
@@ -469,12 +473,12 @@ static int __init reboot_init(void)
/*
* The DMI quirks table takes precedence. If no quirks entry
- * matches and the ACPI Hardware Reduced bit is set, force EFI
- * reboot.
+ * matches and the ACPI Hardware Reduced bit is set and EFI
+ * runtime services are enabled, force EFI reboot.
*/
rv = dmi_check_system(reboot_dmi_table);
- if (!rv && efi_reboot_required())
+ if (!rv && efi_reboot_required() && !efi_runtime_disabled())
reboot_type = BOOT_EFI;
return 0;
@@ -636,7 +640,7 @@ static void native_machine_emergency_restart(void)
break;
case BOOT_TRIPLE:
- load_idt(&no_idt);
+ idt_invalidate(NULL);
__asm__ __volatile__("int3");
/* We're probably dead after this, but... */
diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S
index 98111b38ebfd..307d3bac5f04 100644
--- a/arch/x86/kernel/relocate_kernel_64.S
+++ b/arch/x86/kernel/relocate_kernel_64.S
@@ -47,6 +47,7 @@ relocate_kernel:
* %rsi page_list
* %rdx start address
* %rcx preserve_context
+ * %r8 sme_active
*/
/* Save the CPU context, used for jumping back */
@@ -71,6 +72,9 @@ relocate_kernel:
pushq $0
popfq
+ /* Save SME active flag */
+ movq %r8, %r12
+
/*
* get physical address of control page now
* this is impossible after page table switch
@@ -132,6 +136,16 @@ identity_mapped:
/* Flush the TLB (needed?) */
movq %r9, %cr3
+ /*
+ * If SME is active, there could be old encrypted cache line
+ * entries that will conflict with the now unencrypted memory
+ * used by kexec. Flush the caches before copying the kernel.
+ */
+ testq %r12, %r12
+ jz 1f
+ wbinvd
+1:
+
movq %rcx, %r11
call swap_pages
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index f81823695014..0957dd73d127 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -69,6 +69,7 @@
#include <linux/crash_dump.h>
#include <linux/tboot.h>
#include <linux/jiffies.h>
+#include <linux/mem_encrypt.h>
#include <linux/usb/xhci-dbgp.h>
#include <video/edid.h>
@@ -115,6 +116,7 @@
#include <asm/microcode.h>
#include <asm/mmu_context.h>
#include <asm/kaslr.h>
+#include <asm/unwind.h>
/*
* max_low_pfn_mapped: highest direct mapped pfn under 4GB
@@ -374,6 +376,14 @@ static void __init reserve_initrd(void)
!ramdisk_image || !ramdisk_size)
return; /* No initrd provided by bootloader */
+ /*
+ * If SME is active, this memory will be marked encrypted by the
+ * kernel when it is accessed (including relocation). However, the
+ * ramdisk image was loaded decrypted by the bootloader, so make
+ * sure that it is encrypted before accessing it.
+ */
+ sme_early_encrypt(ramdisk_image, ramdisk_end - ramdisk_image);
+
initrd_start = 0;
mapped_size = memblock_mem_size(max_pfn_mapped);
@@ -503,7 +513,7 @@ static int __init reserve_crashkernel_low(void)
return 0;
}
- low_base = memblock_find_in_range(low_size, 1ULL << 32, low_size, CRASH_ALIGN);
+ low_base = memblock_find_in_range(0, 1ULL << 32, low_size, CRASH_ALIGN);
if (!low_base) {
pr_err("Cannot reserve %ldMB crashkernel low memory, please try smaller size.\n",
(unsigned long)(low_size >> 20));
@@ -890,7 +900,7 @@ void __init setup_arch(char **cmdline_p)
*/
olpc_ofw_detect();
- early_trap_init();
+ idt_setup_early_traps();
early_cpu_init();
early_ioremap_init();
@@ -1076,6 +1086,13 @@ void __init setup_arch(char **cmdline_p)
max_possible_pfn = max_pfn;
/*
+ * This call is required when the CPU does not support PAT. If
+ * mtrr_bp_init() invoked it already via pat_init() the call has no
+ * effect.
+ */
+ init_cache_modes();
+
+ /*
* Define random base addresses for memory sections after max_pfn is
* defined and before each memory section base is used.
*/
@@ -1154,15 +1171,18 @@ void __init setup_arch(char **cmdline_p)
init_mem_mapping();
- early_trap_pf_init();
+ idt_setup_early_pf();
/*
* Update mmu_cr4_features (and, indirectly, trampoline_cr4_features)
* with the current CR4 value. This may not be necessary, but
* auditing all the early-boot CR4 manipulation would be needed to
* rule it out.
+ *
+ * Mask off features that don't work outside long mode (just
+ * PCIDE for now).
*/
- mmu_cr4_features = __read_cr4();
+ mmu_cr4_features = __read_cr4() & ~X86_CR4_PCIDE;
memblock_set_current_limit(get_max_mapped());
@@ -1199,6 +1219,8 @@ void __init setup_arch(char **cmdline_p)
io_delay_init();
+ early_platform_quirks();
+
/*
* Parse the ACPI tables for possible boot-time SMP configuration.
*/
@@ -1303,6 +1325,8 @@ void __init setup_arch(char **cmdline_p)
if (efi_enabled(EFI_BOOT))
efi_apply_memmap_quirks();
#endif
+
+ unwind_init();
}
#ifdef CONFIG_X86_32
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index 10edd1e69a68..28dafed6c682 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -155,13 +155,10 @@ static void __init pcpup_populate_pte(unsigned long addr)
static inline void setup_percpu_segment(int cpu)
{
#ifdef CONFIG_X86_32
- struct desc_struct gdt;
+ struct desc_struct d = GDT_ENTRY_INIT(0x8092, per_cpu_offset(cpu),
+ 0xFFFFF);
- pack_descriptor(&gdt, per_cpu_offset(cpu), 0xFFFFF,
- 0x2 | DESCTYPE_S, 0x8);
- gdt.s = 1;
- write_gdt_entry(get_cpu_gdt_rw(cpu),
- GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S);
+ write_gdt_entry(get_cpu_gdt_rw(cpu), GDT_ENTRY_PERCPU, &d, DESCTYPE_S);
#endif
}
@@ -171,7 +168,7 @@ void __init setup_per_cpu_areas(void)
unsigned long delta;
int rc;
- pr_info("NR_CPUS:%d nr_cpumask_bits:%d nr_cpu_ids:%d nr_node_ids:%d\n",
+ pr_info("NR_CPUS:%d nr_cpumask_bits:%d nr_cpu_ids:%u nr_node_ids:%d\n",
NR_CPUS, nr_cpumask_bits, nr_cpu_ids, nr_node_ids);
/*
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index cc30a74e4adb..4e188fda5961 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -256,14 +256,14 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size,
sp = current->sas_ss_sp + current->sas_ss_size;
} else if (IS_ENABLED(CONFIG_X86_32) &&
!onsigstack &&
- (regs->ss & 0xffff) != __USER_DS &&
+ regs->ss != __USER_DS &&
!(ka->sa.sa_flags & SA_RESTORER) &&
ka->sa.sa_restorer) {
/* This is the legacy signal stack switching. */
sp = (unsigned long) ka->sa.sa_restorer;
}
- if (fpu->fpstate_active) {
+ if (fpu->initialized) {
sp = fpu__alloc_mathframe(sp, IS_ENABLED(CONFIG_X86_32),
&buf_fx, &math_size);
*fpstate = (void __user *)sp;
@@ -279,7 +279,7 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size,
return (void __user *)-1L;
/* save i387 and extended state */
- if (fpu->fpstate_active &&
+ if (fpu->initialized &&
copy_fpstate_to_sigframe(*fpstate, (void __user *)buf_fx, math_size) < 0)
return (void __user *)-1L;
@@ -755,7 +755,7 @@ handle_signal(struct ksignal *ksig, struct pt_regs *regs)
/*
* Ensure the signal handler starts with the new fpu state.
*/
- if (fpu->fpstate_active)
+ if (fpu->initialized)
fpu__clear(fpu);
}
signal_setup_done(failed, ksig, stepping);
diff --git a/arch/x86/kernel/signal_compat.c b/arch/x86/kernel/signal_compat.c
index 71beb28600d4..ab9feb5887b1 100644
--- a/arch/x86/kernel/signal_compat.c
+++ b/arch/x86/kernel/signal_compat.c
@@ -129,7 +129,7 @@ int __copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from,
3 ints plus the relevant union member. */
put_user_ex(from->si_signo, &to->si_signo);
put_user_ex(from->si_errno, &to->si_errno);
- put_user_ex((short)from->si_code, &to->si_code);
+ put_user_ex(from->si_code, &to->si_code);
if (from->si_code < 0) {
put_user_ex(from->si_pid, &to->si_pid);
@@ -142,8 +142,8 @@ int __copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from,
*/
put_user_ex(from->_sifields._pad[0],
&to->_sifields._pad[0]);
- switch (from->si_code >> 16) {
- case __SI_FAULT >> 16:
+ switch (siginfo_layout(from->si_signo, from->si_code)) {
+ case SIL_FAULT:
if (from->si_signo == SIGBUS &&
(from->si_code == BUS_MCEERR_AR ||
from->si_code == BUS_MCEERR_AO))
@@ -160,11 +160,11 @@ int __copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from,
put_user_ex(from->si_pkey, &to->si_pkey);
}
break;
- case __SI_SYS >> 16:
+ case SIL_SYS:
put_user_ex(from->si_syscall, &to->si_syscall);
put_user_ex(from->si_arch, &to->si_arch);
break;
- case __SI_CHLD >> 16:
+ case SIL_CHLD:
if (!x32_ABI) {
put_user_ex(from->si_utime, &to->si_utime);
put_user_ex(from->si_stime, &to->si_stime);
@@ -174,21 +174,18 @@ int __copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from,
}
put_user_ex(from->si_status, &to->si_status);
/* FALL THROUGH */
- default:
- case __SI_KILL >> 16:
+ case SIL_KILL:
put_user_ex(from->si_uid, &to->si_uid);
break;
- case __SI_POLL >> 16:
+ case SIL_POLL:
put_user_ex(from->si_fd, &to->si_fd);
break;
- case __SI_TIMER >> 16:
+ case SIL_TIMER:
put_user_ex(from->si_overrun, &to->si_overrun);
put_user_ex(ptr_to_compat(from->si_ptr),
&to->si_ptr);
break;
- /* This is not generated by the kernel as of now. */
- case __SI_RT >> 16:
- case __SI_MESGQ >> 16:
+ case SIL_RT:
put_user_ex(from->si_uid, &to->si_uid);
put_user_ex(from->si_int, &to->si_int);
break;
diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
index d798c0da451c..5c574dff4c1a 100644
--- a/arch/x86/kernel/smp.c
+++ b/arch/x86/kernel/smp.c
@@ -254,84 +254,45 @@ finish:
}
/*
- * Reschedule call back.
+ * Reschedule call back. KVM uses this interrupt to force a cpu out of
+ * guest mode
*/
-static inline void __smp_reschedule_interrupt(void)
-{
- inc_irq_stat(irq_resched_count);
- scheduler_ipi();
-}
-
__visible void __irq_entry smp_reschedule_interrupt(struct pt_regs *regs)
{
ack_APIC_irq();
- __smp_reschedule_interrupt();
- /*
- * KVM uses this interrupt to force a cpu out of guest mode
- */
-}
-
-__visible void __irq_entry smp_trace_reschedule_interrupt(struct pt_regs *regs)
-{
- /*
- * Need to call irq_enter() before calling the trace point.
- * __smp_reschedule_interrupt() calls irq_enter/exit() too (in
- * scheduler_ipi(). This is OK, since those functions are allowed
- * to nest.
- */
- ipi_entering_ack_irq();
- trace_reschedule_entry(RESCHEDULE_VECTOR);
- __smp_reschedule_interrupt();
- trace_reschedule_exit(RESCHEDULE_VECTOR);
- exiting_irq();
- /*
- * KVM uses this interrupt to force a cpu out of guest mode
- */
-}
+ inc_irq_stat(irq_resched_count);
-static inline void __smp_call_function_interrupt(void)
-{
- generic_smp_call_function_interrupt();
- inc_irq_stat(irq_call_count);
+ if (trace_resched_ipi_enabled()) {
+ /*
+ * scheduler_ipi() might call irq_enter() as well, but
+ * nested calls are fine.
+ */
+ irq_enter();
+ trace_reschedule_entry(RESCHEDULE_VECTOR);
+ scheduler_ipi();
+ trace_reschedule_exit(RESCHEDULE_VECTOR);
+ irq_exit();
+ return;
+ }
+ scheduler_ipi();
}
__visible void __irq_entry smp_call_function_interrupt(struct pt_regs *regs)
{
ipi_entering_ack_irq();
- __smp_call_function_interrupt();
- exiting_irq();
-}
-
-__visible void __irq_entry
-smp_trace_call_function_interrupt(struct pt_regs *regs)
-{
- ipi_entering_ack_irq();
trace_call_function_entry(CALL_FUNCTION_VECTOR);
- __smp_call_function_interrupt();
- trace_call_function_exit(CALL_FUNCTION_VECTOR);
- exiting_irq();
-}
-
-static inline void __smp_call_function_single_interrupt(void)
-{
- generic_smp_call_function_single_interrupt();
inc_irq_stat(irq_call_count);
-}
-
-__visible void __irq_entry
-smp_call_function_single_interrupt(struct pt_regs *regs)
-{
- ipi_entering_ack_irq();
- __smp_call_function_single_interrupt();
+ generic_smp_call_function_interrupt();
+ trace_call_function_exit(CALL_FUNCTION_VECTOR);
exiting_irq();
}
-__visible void __irq_entry
-smp_trace_call_function_single_interrupt(struct pt_regs *regs)
+__visible void __irq_entry smp_call_function_single_interrupt(struct pt_regs *r)
{
ipi_entering_ack_irq();
trace_call_function_single_entry(CALL_FUNCTION_SINGLE_VECTOR);
- __smp_call_function_single_interrupt();
+ inc_irq_stat(irq_call_count);
+ generic_smp_call_function_single_interrupt();
trace_call_function_single_exit(CALL_FUNCTION_SINGLE_VECTOR);
exiting_irq();
}
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index f04479a8f74f..ad59edd84de7 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -226,16 +226,12 @@ static int enable_start_cpu0;
static void notrace start_secondary(void *unused)
{
/*
- * Don't put *anything* before cpu_init(), SMP booting is too
- * fragile that we want to limit the things done here to the
- * most necessary things.
+ * Don't put *anything* except direct CPU state initialization
+ * before cpu_init(), SMP booting is too fragile that we want to
+ * limit the things done here to the most necessary things.
*/
- cpu_init();
- x86_cpuinit.early_percpu_clock_init();
- preempt_disable();
- smp_callin();
-
- enable_start_cpu0 = 0;
+ if (boot_cpu_has(X86_FEATURE_PCID))
+ __write_cr4(__read_cr4() | X86_CR4_PCIDE);
#ifdef CONFIG_X86_32
/* switch away from the initial page table */
@@ -243,6 +239,13 @@ static void notrace start_secondary(void *unused)
__flush_tlb_all();
#endif
+ cpu_init();
+ x86_cpuinit.early_percpu_clock_init();
+ preempt_disable();
+ smp_callin();
+
+ enable_start_cpu0 = 0;
+
/* otherwise gcc will move up smp_processor_id before the cpu_init */
barrier();
/*
@@ -863,7 +866,7 @@ static void announce_cpu(int cpu, int apicid)
if (cpu == 1)
printk(KERN_INFO "x86: Booting SMP configuration:\n");
- if (system_state == SYSTEM_BOOTING) {
+ if (system_state < SYSTEM_RUNNING) {
if (node != current_node) {
if (current_node > (-1))
pr_cont("\n");
@@ -971,7 +974,8 @@ void common_cpu_up(unsigned int cpu, struct task_struct *idle)
* Returns zero if CPU booted OK, else error code from
* ->wakeup_secondary_cpu.
*/
-static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
+static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle,
+ int *cpu0_nmi_registered)
{
volatile u32 *trampoline_status =
(volatile u32 *) __va(real_mode_header->trampoline_status);
@@ -979,7 +983,6 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
unsigned long start_ip = real_mode_header->trampoline_start;
unsigned long boot_error = 0;
- int cpu0_nmi_registered = 0;
unsigned long timeout;
idle->thread.sp = (unsigned long)task_pt_regs(idle);
@@ -1035,7 +1038,7 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
boot_error = apic->wakeup_secondary_cpu(apicid, start_ip);
else
boot_error = wakeup_cpu_via_init_nmi(cpu, start_ip, apicid,
- &cpu0_nmi_registered);
+ cpu0_nmi_registered);
if (!boot_error) {
/*
@@ -1080,12 +1083,6 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
*/
smpboot_restore_warm_reset_vector();
}
- /*
- * Clean up the nmi handler. Do this after the callin and callout sync
- * to avoid impact of possible long unregister time.
- */
- if (cpu0_nmi_registered)
- unregister_nmi_handler(NMI_LOCAL, "wake_cpu0");
return boot_error;
}
@@ -1093,8 +1090,9 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
int native_cpu_up(unsigned int cpu, struct task_struct *tidle)
{
int apicid = apic->cpu_present_to_apicid(cpu);
+ int cpu0_nmi_registered = 0;
unsigned long flags;
- int err;
+ int err, ret = 0;
WARN_ON(irqs_disabled());
@@ -1131,10 +1129,11 @@ int native_cpu_up(unsigned int cpu, struct task_struct *tidle)
common_cpu_up(cpu, tidle);
- err = do_boot_cpu(apicid, cpu, tidle);
+ err = do_boot_cpu(apicid, cpu, tidle, &cpu0_nmi_registered);
if (err) {
pr_err("do_boot_cpu failed(%d) to wakeup CPU#%u\n", err, cpu);
- return -EIO;
+ ret = -EIO;
+ goto unreg_nmi;
}
/*
@@ -1150,7 +1149,15 @@ int native_cpu_up(unsigned int cpu, struct task_struct *tidle)
touch_nmi_watchdog();
}
- return 0;
+unreg_nmi:
+ /*
+ * Clean up the nmi handler. Do this after the callin and callout sync
+ * to avoid impact of possible long unregister time.
+ */
+ if (cpu0_nmi_registered)
+ unregister_nmi_handler(NMI_LOCAL, "wake_cpu0");
+
+ return ret;
}
/**
@@ -1457,7 +1464,7 @@ __init void prefill_possible_map(void)
/* nr_cpu_ids could be reduced via nr_cpus= */
if (possible > nr_cpu_ids) {
- pr_warn("%d Processors exceeds NR_CPUS limit of %d\n",
+ pr_warn("%d Processors exceeds NR_CPUS limit of %u\n",
possible, nr_cpu_ids);
possible = nr_cpu_ids;
}
@@ -1589,7 +1596,6 @@ void native_cpu_die(unsigned int cpu)
void play_dead_common(void)
{
idle_task_exit();
- reset_lazy_tlbstate();
/* Ack it */
(void)cpu_report_death();
diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index f07f83b3611b..5ee663836c08 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -13,7 +13,7 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re
unsigned long addr, seg;
addr = regs->ip;
- seg = regs->cs & 0xffff;
+ seg = regs->cs;
if (v8086_mode(regs)) {
addr = (addr & 0xffff) + (seg << 4);
return addr;
@@ -34,7 +34,7 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re
mutex_lock(&child->mm->context.lock);
if (unlikely(!child->mm->context.ldt ||
- seg >= child->mm->context.ldt->size))
+ seg >= child->mm->context.ldt->nr_entries))
addr = -1L; /* bogus selector, access would fault */
else {
desc = &child->mm->context.ldt->entries[seg];
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index 213ddf3e937d..73e4d28112f8 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -21,6 +21,7 @@
#include <asm/compat.h>
#include <asm/ia32.h>
#include <asm/syscalls.h>
+#include <asm/mpx.h>
/*
* Align a virtual address to avoid aliasing in the I$ on AMD F15h.
@@ -100,8 +101,8 @@ out:
return error;
}
-static void find_start_end(unsigned long flags, unsigned long *begin,
- unsigned long *end)
+static void find_start_end(unsigned long addr, unsigned long flags,
+ unsigned long *begin, unsigned long *end)
{
if (!in_compat_syscall() && (flags & MAP_32BIT)) {
/* This is usually used needed to map code in small
@@ -120,7 +121,10 @@ static void find_start_end(unsigned long flags, unsigned long *begin,
}
*begin = get_mmap_base(1);
- *end = in_compat_syscall() ? tasksize_32bit() : tasksize_64bit();
+ if (in_compat_syscall())
+ *end = task_size_32bit();
+ else
+ *end = task_size_64bit(addr > DEFAULT_MAP_WINDOW);
}
unsigned long
@@ -132,10 +136,14 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
struct vm_unmapped_area_info info;
unsigned long begin, end;
+ addr = mpx_unmapped_area_check(addr, len, flags);
+ if (IS_ERR_VALUE(addr))
+ return addr;
+
if (flags & MAP_FIXED)
return addr;
- find_start_end(flags, &begin, &end);
+ find_start_end(addr, flags, &begin, &end);
if (len > end)
return -ENOMEM;
@@ -171,6 +179,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
unsigned long addr = addr0;
struct vm_unmapped_area_info info;
+ addr = mpx_unmapped_area_check(addr, len, flags);
+ if (IS_ERR_VALUE(addr))
+ return addr;
+
/* requested length too big for entire address space */
if (len > TASK_SIZE)
return -ENOMEM;
@@ -195,6 +207,16 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
info.length = len;
info.low_limit = PAGE_SIZE;
info.high_limit = get_mmap_base(0);
+
+ /*
+ * If hint address is above DEFAULT_MAP_WINDOW, look for unmapped area
+ * in the full address space.
+ *
+ * !in_compat_syscall() check to avoid high addresses for x32.
+ */
+ if (addr > DEFAULT_MAP_WINDOW && !in_compat_syscall())
+ info.high_limit += TASK_SIZE_MAX - DEFAULT_MAP_WINDOW;
+
info.align_mask = 0;
info.align_offset = pgoff << PAGE_SHIFT;
if (filp) {
diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
index d39c09119db6..e0754cdbad37 100644
--- a/arch/x86/kernel/time.c
+++ b/arch/x86/kernel/time.c
@@ -66,7 +66,7 @@ static struct irqaction irq0 = {
.name = "timer"
};
-void __init setup_default_timer_irq(void)
+static void __init setup_default_timer_irq(void)
{
if (!nr_legacy_irqs())
return;
diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
index dcd699baea1b..a106b9719c58 100644
--- a/arch/x86/kernel/tls.c
+++ b/arch/x86/kernel/tls.c
@@ -93,7 +93,7 @@ static void set_tls_desc(struct task_struct *p, int idx,
while (n-- > 0) {
if (LDT_empty(info) || LDT_zero(info)) {
- desc->a = desc->b = 0;
+ memset(desc, 0, sizeof(*desc));
} else {
fill_ldt(desc, info);
diff --git a/arch/x86/kernel/tracepoint.c b/arch/x86/kernel/tracepoint.c
index 15515132bf0d..c6636d1f60b9 100644
--- a/arch/x86/kernel/tracepoint.c
+++ b/arch/x86/kernel/tracepoint.c
@@ -4,57 +4,38 @@
* Copyright (C) 2013 Seiji Aguchi <seiji.aguchi@hds.com>
*
*/
-#include <asm/hw_irq.h>
-#include <asm/desc.h>
+#include <linux/jump_label.h>
#include <linux/atomic.h>
-atomic_t trace_idt_ctr = ATOMIC_INIT(0);
-struct desc_ptr trace_idt_descr = { NR_VECTORS * 16 - 1,
- (unsigned long) trace_idt_table };
-
-/* No need to be aligned, but done to keep all IDTs defined the same way. */
-gate_desc trace_idt_table[NR_VECTORS] __page_aligned_bss;
+#include <asm/hw_irq.h>
+#include <asm/desc.h>
-static int trace_irq_vector_refcount;
-static DEFINE_MUTEX(irq_vector_mutex);
+DEFINE_STATIC_KEY_FALSE(trace_pagefault_key);
-static void set_trace_idt_ctr(int val)
+int trace_pagefault_reg(void)
{
- atomic_set(&trace_idt_ctr, val);
- /* Ensure the trace_idt_ctr is set before sending IPI */
- wmb();
+ static_branch_inc(&trace_pagefault_key);
+ return 0;
}
-static void switch_idt(void *arg)
+void trace_pagefault_unreg(void)
{
- unsigned long flags;
-
- local_irq_save(flags);
- load_current_idt();
- local_irq_restore(flags);
+ static_branch_dec(&trace_pagefault_key);
}
-int trace_irq_vector_regfunc(void)
+#ifdef CONFIG_SMP
+
+DEFINE_STATIC_KEY_FALSE(trace_resched_ipi_key);
+
+int trace_resched_ipi_reg(void)
{
- mutex_lock(&irq_vector_mutex);
- if (!trace_irq_vector_refcount) {
- set_trace_idt_ctr(1);
- smp_call_function(switch_idt, NULL, 0);
- switch_idt(NULL);
- }
- trace_irq_vector_refcount++;
- mutex_unlock(&irq_vector_mutex);
+ static_branch_inc(&trace_resched_ipi_key);
return 0;
}
-void trace_irq_vector_unregfunc(void)
+void trace_resched_ipi_unreg(void)
{
- mutex_lock(&irq_vector_mutex);
- trace_irq_vector_refcount--;
- if (!trace_irq_vector_refcount) {
- set_trace_idt_ctr(0);
- smp_call_function(switch_idt, NULL, 0);
- switch_idt(NULL);
- }
- mutex_unlock(&irq_vector_mutex);
+ static_branch_dec(&trace_resched_ipi_key);
}
+
+#endif
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index bf54309b85da..67db4f43309e 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -38,11 +38,6 @@
#include <linux/smp.h>
#include <linux/io.h>
-#ifdef CONFIG_EISA
-#include <linux/ioport.h>
-#include <linux/eisa.h>
-#endif
-
#if defined(CONFIG_EDAC)
#include <linux/edac.h>
#endif
@@ -70,20 +65,13 @@
#include <asm/x86_init.h>
#include <asm/pgalloc.h>
#include <asm/proto.h>
-
-/* No need to be aligned, but done to keep all IDTs defined the same way. */
-gate_desc debug_idt_table[NR_VECTORS] __page_aligned_bss;
#else
#include <asm/processor-flags.h>
#include <asm/setup.h>
#include <asm/proto.h>
#endif
-/* Must be page-aligned because the real IDT is used in a fixmap. */
-gate_desc idt_table[NR_VECTORS] __page_aligned_bss;
-
DECLARE_BITMAP(used_vectors, NR_VECTORS);
-EXPORT_SYMBOL_GPL(used_vectors);
static inline void cond_local_irq_enable(struct pt_regs *regs)
{
@@ -154,7 +142,7 @@ void ist_begin_non_atomic(struct pt_regs *regs)
* from double_fault.
*/
BUG_ON((unsigned long)(current_top_of_stack() -
- current_stack_pointer()) >= THREAD_SIZE);
+ current_stack_pointer) >= THREAD_SIZE);
preempt_enable_no_resched();
}
@@ -935,87 +923,9 @@ dotraplinkage void do_iret_error(struct pt_regs *regs, long error_code)
}
#endif
-/* Set of traps needed for early debugging. */
-void __init early_trap_init(void)
-{
- /*
- * Don't use IST to set DEBUG_STACK as it doesn't work until TSS
- * is ready in cpu_init() <-- trap_init(). Before trap_init(),
- * CPU runs at ring 0 so it is impossible to hit an invalid
- * stack. Using the original stack works well enough at this
- * early stage. DEBUG_STACK will be equipped after cpu_init() in
- * trap_init().
- *
- * We don't need to set trace_idt_table like set_intr_gate(),
- * since we don't have trace_debug and it will be reset to
- * 'debug' in trap_init() by set_intr_gate_ist().
- */
- set_intr_gate_notrace(X86_TRAP_DB, debug);
- /* int3 can be called from all */
- set_system_intr_gate(X86_TRAP_BP, &int3);
-#ifdef CONFIG_X86_32
- set_intr_gate(X86_TRAP_PF, page_fault);
-#endif
- load_idt(&idt_descr);
-}
-
-void __init early_trap_pf_init(void)
-{
-#ifdef CONFIG_X86_64
- set_intr_gate(X86_TRAP_PF, page_fault);
-#endif
-}
-
void __init trap_init(void)
{
- int i;
-
-#ifdef CONFIG_EISA
- void __iomem *p = early_ioremap(0x0FFFD9, 4);
-
- if (readl(p) == 'E' + ('I'<<8) + ('S'<<16) + ('A'<<24))
- EISA_bus = 1;
- early_iounmap(p, 4);
-#endif
-
- set_intr_gate(X86_TRAP_DE, divide_error);
- set_intr_gate_ist(X86_TRAP_NMI, &nmi, NMI_STACK);
- /* int4 can be called from all */
- set_system_intr_gate(X86_TRAP_OF, &overflow);
- set_intr_gate(X86_TRAP_BR, bounds);
- set_intr_gate(X86_TRAP_UD, invalid_op);
- set_intr_gate(X86_TRAP_NM, device_not_available);
-#ifdef CONFIG_X86_32
- set_task_gate(X86_TRAP_DF, GDT_ENTRY_DOUBLEFAULT_TSS);
-#else
- set_intr_gate_ist(X86_TRAP_DF, &double_fault, DOUBLEFAULT_STACK);
-#endif
- set_intr_gate(X86_TRAP_OLD_MF, coprocessor_segment_overrun);
- set_intr_gate(X86_TRAP_TS, invalid_TSS);
- set_intr_gate(X86_TRAP_NP, segment_not_present);
- set_intr_gate(X86_TRAP_SS, stack_segment);
- set_intr_gate(X86_TRAP_GP, general_protection);
- set_intr_gate(X86_TRAP_SPURIOUS, spurious_interrupt_bug);
- set_intr_gate(X86_TRAP_MF, coprocessor_error);
- set_intr_gate(X86_TRAP_AC, alignment_check);
-#ifdef CONFIG_X86_MCE
- set_intr_gate_ist(X86_TRAP_MC, &machine_check, MCE_STACK);
-#endif
- set_intr_gate(X86_TRAP_XF, simd_coprocessor_error);
-
- /* Reserve all the builtin and the syscall vector: */
- for (i = 0; i < FIRST_EXTERNAL_VECTOR; i++)
- set_bit(i, used_vectors);
-
-#ifdef CONFIG_IA32_EMULATION
- set_system_intr_gate(IA32_SYSCALL_VECTOR, entry_INT80_compat);
- set_bit(IA32_SYSCALL_VECTOR, used_vectors);
-#endif
-
-#ifdef CONFIG_X86_32
- set_system_intr_gate(IA32_SYSCALL_VECTOR, entry_INT80_32);
- set_bit(IA32_SYSCALL_VECTOR, used_vectors);
-#endif
+ idt_setup_traps();
/*
* Set the IDT descriptor to a fixed read-only location, so that the
@@ -1030,20 +940,9 @@ void __init trap_init(void)
*/
cpu_init();
- /*
- * X86_TRAP_DB and X86_TRAP_BP have been set
- * in early_trap_init(). However, ITS works only after
- * cpu_init() loads TSS. See comments in early_trap_init().
- */
- set_intr_gate_ist(X86_TRAP_DB, &debug, DEBUG_STACK);
- /* int3 can be called from all */
- set_system_intr_gate_ist(X86_TRAP_BP, &int3, DEBUG_STACK);
+ idt_setup_ist_traps();
x86_init.irqs.trap_init();
-#ifdef CONFIG_X86_64
- memcpy(&debug_idt_table, &idt_table, IDT_ENTRIES * 16);
- set_nmi_gate(X86_TRAP_DB, &debug);
- set_nmi_gate(X86_TRAP_BP, &int3);
-#endif
+ idt_setup_debugidt_traps();
}
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index 714dfba6a1e7..796d96bb0821 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -51,115 +51,34 @@ static u32 art_to_tsc_denominator;
static u64 art_to_tsc_offset;
struct clocksource *art_related_clocksource;
-/*
- * Use a ring-buffer like data structure, where a writer advances the head by
- * writing a new data entry and a reader advances the tail when it observes a
- * new entry.
- *
- * Writers are made to wait on readers until there's space to write a new
- * entry.
- *
- * This means that we can always use an {offset, mul} pair to compute a ns
- * value that is 'roughly' in the right direction, even if we're writing a new
- * {offset, mul} pair during the clock read.
- *
- * The down-side is that we can no longer guarantee strict monotonicity anymore
- * (assuming the TSC was that to begin with), because while we compute the
- * intersection point of the two clock slopes and make sure the time is
- * continuous at the point of switching; we can no longer guarantee a reader is
- * strictly before or after the switch point.
- *
- * It does mean a reader no longer needs to disable IRQs in order to avoid
- * CPU-Freq updates messing with his times, and similarly an NMI reader will
- * no longer run the risk of hitting half-written state.
- */
-
struct cyc2ns {
- struct cyc2ns_data data[2]; /* 0 + 2*24 = 48 */
- struct cyc2ns_data *head; /* 48 + 8 = 56 */
- struct cyc2ns_data *tail; /* 56 + 8 = 64 */
-}; /* exactly fits one cacheline */
-
-static DEFINE_PER_CPU_ALIGNED(struct cyc2ns, cyc2ns);
-
-struct cyc2ns_data *cyc2ns_read_begin(void)
-{
- struct cyc2ns_data *head;
-
- preempt_disable();
+ struct cyc2ns_data data[2]; /* 0 + 2*16 = 32 */
+ seqcount_t seq; /* 32 + 4 = 36 */
- head = this_cpu_read(cyc2ns.head);
- /*
- * Ensure we observe the entry when we observe the pointer to it.
- * matches the wmb from cyc2ns_write_end().
- */
- smp_read_barrier_depends();
- head->__count++;
- barrier();
-
- return head;
-}
+}; /* fits one cacheline */
-void cyc2ns_read_end(struct cyc2ns_data *head)
-{
- barrier();
- /*
- * If we're the outer most nested read; update the tail pointer
- * when we're done. This notifies possible pending writers
- * that we've observed the head pointer and that the other
- * entry is now free.
- */
- if (!--head->__count) {
- /*
- * x86-TSO does not reorder writes with older reads;
- * therefore once this write becomes visible to another
- * cpu, we must be finished reading the cyc2ns_data.
- *
- * matches with cyc2ns_write_begin().
- */
- this_cpu_write(cyc2ns.tail, head);
- }
- preempt_enable();
-}
+static DEFINE_PER_CPU_ALIGNED(struct cyc2ns, cyc2ns);
-/*
- * Begin writing a new @data entry for @cpu.
- *
- * Assumes some sort of write side lock; currently 'provided' by the assumption
- * that cpufreq will call its notifiers sequentially.
- */
-static struct cyc2ns_data *cyc2ns_write_begin(int cpu)
+void cyc2ns_read_begin(struct cyc2ns_data *data)
{
- struct cyc2ns *c2n = &per_cpu(cyc2ns, cpu);
- struct cyc2ns_data *data = c2n->data;
+ int seq, idx;
- if (data == c2n->head)
- data++;
+ preempt_disable_notrace();
- /* XXX send an IPI to @cpu in order to guarantee a read? */
+ do {
+ seq = this_cpu_read(cyc2ns.seq.sequence);
+ idx = seq & 1;
- /*
- * When we observe the tail write from cyc2ns_read_end(),
- * the cpu must be done with that entry and its safe
- * to start writing to it.
- */
- while (c2n->tail == data)
- cpu_relax();
+ data->cyc2ns_offset = this_cpu_read(cyc2ns.data[idx].cyc2ns_offset);
+ data->cyc2ns_mul = this_cpu_read(cyc2ns.data[idx].cyc2ns_mul);
+ data->cyc2ns_shift = this_cpu_read(cyc2ns.data[idx].cyc2ns_shift);
- return data;
+ } while (unlikely(seq != this_cpu_read(cyc2ns.seq.sequence)));
}
-static void cyc2ns_write_end(int cpu, struct cyc2ns_data *data)
+void cyc2ns_read_end(void)
{
- struct cyc2ns *c2n = &per_cpu(cyc2ns, cpu);
-
- /*
- * Ensure the @data writes are visible before we publish the
- * entry. Matches the data-depencency in cyc2ns_read_begin().
- */
- smp_wmb();
-
- ACCESS_ONCE(c2n->head) = data;
+ preempt_enable_notrace();
}
/*
@@ -191,7 +110,6 @@ static void cyc2ns_data_init(struct cyc2ns_data *data)
data->cyc2ns_mul = 0;
data->cyc2ns_shift = 0;
data->cyc2ns_offset = 0;
- data->__count = 0;
}
static void cyc2ns_init(int cpu)
@@ -201,51 +119,29 @@ static void cyc2ns_init(int cpu)
cyc2ns_data_init(&c2n->data[0]);
cyc2ns_data_init(&c2n->data[1]);
- c2n->head = c2n->data;
- c2n->tail = c2n->data;
+ seqcount_init(&c2n->seq);
}
static inline unsigned long long cycles_2_ns(unsigned long long cyc)
{
- struct cyc2ns_data *data, *tail;
+ struct cyc2ns_data data;
unsigned long long ns;
- /*
- * See cyc2ns_read_*() for details; replicated in order to avoid
- * an extra few instructions that came with the abstraction.
- * Notable, it allows us to only do the __count and tail update
- * dance when its actually needed.
- */
-
- preempt_disable_notrace();
- data = this_cpu_read(cyc2ns.head);
- tail = this_cpu_read(cyc2ns.tail);
-
- if (likely(data == tail)) {
- ns = data->cyc2ns_offset;
- ns += mul_u64_u32_shr(cyc, data->cyc2ns_mul, data->cyc2ns_shift);
- } else {
- data->__count++;
-
- barrier();
+ cyc2ns_read_begin(&data);
- ns = data->cyc2ns_offset;
- ns += mul_u64_u32_shr(cyc, data->cyc2ns_mul, data->cyc2ns_shift);
+ ns = data.cyc2ns_offset;
+ ns += mul_u64_u32_shr(cyc, data.cyc2ns_mul, data.cyc2ns_shift);
- barrier();
-
- if (!--data->__count)
- this_cpu_write(cyc2ns.tail, data);
- }
- preempt_enable_notrace();
+ cyc2ns_read_end();
return ns;
}
-static void set_cyc2ns_scale(unsigned long khz, int cpu)
+static void set_cyc2ns_scale(unsigned long khz, int cpu, unsigned long long tsc_now)
{
- unsigned long long tsc_now, ns_now;
- struct cyc2ns_data *data;
+ unsigned long long ns_now;
+ struct cyc2ns_data data;
+ struct cyc2ns *c2n;
unsigned long flags;
local_irq_save(flags);
@@ -254,9 +150,6 @@ static void set_cyc2ns_scale(unsigned long khz, int cpu)
if (!khz)
goto done;
- data = cyc2ns_write_begin(cpu);
-
- tsc_now = rdtsc();
ns_now = cycles_2_ns(tsc_now);
/*
@@ -264,7 +157,7 @@ static void set_cyc2ns_scale(unsigned long khz, int cpu)
* time function is continuous; see the comment near struct
* cyc2ns_data.
*/
- clocks_calc_mult_shift(&data->cyc2ns_mul, &data->cyc2ns_shift, khz,
+ clocks_calc_mult_shift(&data.cyc2ns_mul, &data.cyc2ns_shift, khz,
NSEC_PER_MSEC, 0);
/*
@@ -273,20 +166,26 @@ static void set_cyc2ns_scale(unsigned long khz, int cpu)
* conversion algorithm shifting a 32-bit value (now specifies a 64-bit
* value) - refer perf_event_mmap_page documentation in perf_event.h.
*/
- if (data->cyc2ns_shift == 32) {
- data->cyc2ns_shift = 31;
- data->cyc2ns_mul >>= 1;
+ if (data.cyc2ns_shift == 32) {
+ data.cyc2ns_shift = 31;
+ data.cyc2ns_mul >>= 1;
}
- data->cyc2ns_offset = ns_now -
- mul_u64_u32_shr(tsc_now, data->cyc2ns_mul, data->cyc2ns_shift);
+ data.cyc2ns_offset = ns_now -
+ mul_u64_u32_shr(tsc_now, data.cyc2ns_mul, data.cyc2ns_shift);
- cyc2ns_write_end(cpu, data);
+ c2n = per_cpu_ptr(&cyc2ns, cpu);
+
+ raw_write_seqcount_latch(&c2n->seq);
+ c2n->data[0] = data;
+ raw_write_seqcount_latch(&c2n->seq);
+ c2n->data[1] = data;
done:
- sched_clock_idle_wakeup_event(0);
+ sched_clock_idle_wakeup_event();
local_irq_restore(flags);
}
+
/*
* Scheduler clock - returns current time in nanosec units.
*/
@@ -374,6 +273,8 @@ static int __init tsc_setup(char *str)
tsc_clocksource_reliable = 1;
if (!strncmp(str, "noirqtime", 9))
no_sched_irq_time = 1;
+ if (!strcmp(str, "unstable"))
+ mark_tsc_unstable("boot parameter");
return 1;
}
@@ -986,7 +887,6 @@ void tsc_restore_sched_clock_state(void)
}
#ifdef CONFIG_CPU_FREQ
-
/* Frequency scaling support. Adjust the TSC based timer when the cpu frequency
* changes.
*
@@ -1027,7 +927,7 @@ static int time_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
if (!(freq->flags & CPUFREQ_CONST_LOOPS))
mark_tsc_unstable("cpufreq changes");
- set_cyc2ns_scale(tsc_khz, freq->cpu);
+ set_cyc2ns_scale(tsc_khz, freq->cpu, rdtsc());
}
return 0;
@@ -1127,6 +1027,15 @@ static void tsc_cs_mark_unstable(struct clocksource *cs)
pr_info("Marking TSC unstable due to clocksource watchdog\n");
}
+static void tsc_cs_tick_stable(struct clocksource *cs)
+{
+ if (tsc_unstable)
+ return;
+
+ if (using_native_sched_clock())
+ sched_clock_tick_stable();
+}
+
/*
* .mask MUST be CLOCKSOURCE_MASK(64). See comment above read_tsc()
*/
@@ -1140,6 +1049,7 @@ static struct clocksource clocksource_tsc = {
.archdata = { .vclock_mode = VCLOCK_TSC },
.resume = tsc_resume,
.mark_unstable = tsc_cs_mark_unstable,
+ .tick_stable = tsc_cs_tick_stable,
};
void mark_tsc_unstable(char *reason)
@@ -1255,6 +1165,7 @@ static void tsc_refine_calibration_work(struct work_struct *work)
static int hpet;
u64 tsc_stop, ref_stop, delta;
unsigned long freq;
+ int cpu;
/* Don't bother refining TSC on unstable systems */
if (check_tsc_unstable())
@@ -1305,6 +1216,10 @@ static void tsc_refine_calibration_work(struct work_struct *work)
/* Inform the TSC deadline clockevent devices about the recalibration */
lapic_update_tsc_freq();
+ /* Update the sched_clock() rate to match the clocksource one */
+ for_each_possible_cpu(cpu)
+ set_cyc2ns_scale(tsc_khz, cpu, tsc_stop);
+
out:
if (boot_cpu_has(X86_FEATURE_ART))
art_related_clocksource = &clocksource_tsc;
@@ -1350,7 +1265,7 @@ device_initcall(init_tsc_clocksource);
void __init tsc_init(void)
{
- u64 lpj;
+ u64 lpj, cyc;
int cpu;
if (!boot_cpu_has(X86_FEATURE_TSC)) {
@@ -1390,9 +1305,10 @@ void __init tsc_init(void)
* speed as the bootup CPU. (cpufreq notifiers will fix this
* up if their speed diverges)
*/
+ cyc = rdtsc();
for_each_possible_cpu(cpu) {
cyc2ns_init(cpu);
- set_cyc2ns_scale(tsc_khz, cpu);
+ set_cyc2ns_scale(tsc_khz, cpu, cyc);
}
if (tsc_disabled > 0)
@@ -1412,11 +1328,11 @@ void __init tsc_init(void)
use_tsc_delay();
+ check_system_tsc_reliable();
+
if (unsynchronized_tsc())
mark_tsc_unstable("TSCs unsynchronized");
- check_system_tsc_reliable();
-
detect_art();
}
diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c
index 728f75378475..7842371bc9e4 100644
--- a/arch/x86/kernel/tsc_sync.c
+++ b/arch/x86/kernel/tsc_sync.c
@@ -71,13 +71,8 @@ static void tsc_sanitize_first_cpu(struct tsc_adjust *cur, s64 bootval,
* non zero. We don't do that on non boot cpus because physical
* hotplug should have set the ADJUST register to a value > 0 so
* the TSC is in sync with the already running cpus.
- *
- * But we always force positive ADJUST values. Otherwise the TSC
- * deadline timer creates an interrupt storm. We also have to
- * prevent values > 0x7FFFFFFF as those wreckage the timer as well.
*/
- if ((bootcpu && bootval != 0) || (!bootcpu && bootval < 0) ||
- (bootval > 0x7FFFFFFF)) {
+ if (bootcpu && bootval != 0) {
pr_warn(FW_BUG "TSC ADJUST: CPU%u: %lld force to 0\n", cpu,
bootval);
wrmsrl(MSR_IA32_TSC_ADJUST, 0);
@@ -451,20 +446,6 @@ retry:
*/
cur->adjusted += cur_max_warp;
- /*
- * TSC deadline timer stops working or creates an interrupt storm
- * with adjust values < 0 and > x07ffffff.
- *
- * To allow adjust values > 0x7FFFFFFF we need to disable the
- * deadline timer and use the local APIC timer, but that requires
- * more intrusive changes and we do not have any useful information
- * from Intel about the underlying HW wreckage yet.
- */
- if (cur->adjusted < 0)
- cur->adjusted = 0;
- if (cur->adjusted > 0x7FFFFFFF)
- cur->adjusted = 0x7FFFFFFF;
-
pr_warn("TSC ADJUST compensate: CPU%u observed %lld warp. Adjust: %lld\n",
cpu, cur_max_warp, cur->adjusted);
diff --git a/arch/x86/kernel/unwind_frame.c b/arch/x86/kernel/unwind_frame.c
index b9389d72b2f7..3dc26f95d46e 100644
--- a/arch/x86/kernel/unwind_frame.c
+++ b/arch/x86/kernel/unwind_frame.c
@@ -10,20 +10,22 @@
#define FRAME_HEADER_SIZE (sizeof(long) * 2)
-/*
- * This disables KASAN checking when reading a value from another task's stack,
- * since the other task could be running on another CPU and could have poisoned
- * the stack in the meantime.
- */
-#define READ_ONCE_TASK_STACK(task, x) \
-({ \
- unsigned long val; \
- if (task == current) \
- val = READ_ONCE(x); \
- else \
- val = READ_ONCE_NOCHECK(x); \
- val; \
-})
+unsigned long unwind_get_return_address(struct unwind_state *state)
+{
+ if (unwind_done(state))
+ return 0;
+
+ return __kernel_text_address(state->ip) ? state->ip : 0;
+}
+EXPORT_SYMBOL_GPL(unwind_get_return_address);
+
+unsigned long *unwind_get_return_address_ptr(struct unwind_state *state)
+{
+ if (unwind_done(state))
+ return NULL;
+
+ return state->regs ? &state->regs->ip : state->bp + 1;
+}
static void unwind_dump(struct unwind_state *state)
{
@@ -42,7 +44,8 @@ static void unwind_dump(struct unwind_state *state)
state->stack_info.type, state->stack_info.next_sp,
state->stack_mask, state->graph_idx);
- for (sp = state->orig_sp; sp; sp = PTR_ALIGN(stack_info.next_sp, sizeof(long))) {
+ for (sp = PTR_ALIGN(state->orig_sp, sizeof(long)); sp;
+ sp = PTR_ALIGN(stack_info.next_sp, sizeof(long))) {
if (get_stack_info(sp, state->task, &stack_info, &visit_mask))
break;
@@ -66,15 +69,6 @@ static void unwind_dump(struct unwind_state *state)
}
}
-unsigned long unwind_get_return_address(struct unwind_state *state)
-{
- if (unwind_done(state))
- return 0;
-
- return __kernel_text_address(state->ip) ? state->ip : 0;
-}
-EXPORT_SYMBOL_GPL(unwind_get_return_address);
-
static size_t regs_size(struct pt_regs *regs)
{
/* x86_32 regs from kernel mode are two words shorter: */
@@ -91,10 +85,8 @@ static bool in_entry_code(unsigned long ip)
if (addr >= __entry_text_start && addr < __entry_text_end)
return true;
-#if defined(CONFIG_FUNCTION_GRAPH_TRACER) || defined(CONFIG_KASAN)
if (addr >= __irqentry_text_start && addr < __irqentry_text_end)
return true;
-#endif
return false;
}
@@ -183,6 +175,7 @@ static bool is_last_task_frame(struct unwind_state *state)
* This determines if the frame pointer actually contains an encoded pointer to
* pt_regs on the stack. See ENCODE_FRAME_POINTER.
*/
+#ifdef CONFIG_X86_64
static struct pt_regs *decode_frame_pointer(unsigned long *bp)
{
unsigned long regs = (unsigned long)bp;
@@ -192,6 +185,23 @@ static struct pt_regs *decode_frame_pointer(unsigned long *bp)
return (struct pt_regs *)(regs & ~0x1);
}
+#else
+static struct pt_regs *decode_frame_pointer(unsigned long *bp)
+{
+ unsigned long regs = (unsigned long)bp;
+
+ if (regs & 0x80000000)
+ return NULL;
+
+ return (struct pt_regs *)(regs | 0x80000000);
+}
+#endif
+
+#ifdef CONFIG_X86_32
+#define KERNEL_REGS_SIZE (sizeof(struct pt_regs) - 2*sizeof(long))
+#else
+#define KERNEL_REGS_SIZE (sizeof(struct pt_regs))
+#endif
static bool update_stack_state(struct unwind_state *state,
unsigned long *next_bp)
@@ -211,7 +221,7 @@ static bool update_stack_state(struct unwind_state *state,
regs = decode_frame_pointer(next_bp);
if (regs) {
frame = (unsigned long *)regs;
- len = regs_size(regs);
+ len = KERNEL_REGS_SIZE;
state->got_irq = true;
} else {
frame = next_bp;
@@ -235,6 +245,14 @@ static bool update_stack_state(struct unwind_state *state,
frame < prev_frame_end)
return false;
+ /*
+ * On 32-bit with user mode regs, make sure the last two regs are safe
+ * to access:
+ */
+ if (IS_ENABLED(CONFIG_X86_32) && regs && user_mode(regs) &&
+ !on_stack(info, frame, len + 2*sizeof(long)))
+ return false;
+
/* Move state to the next frame: */
if (regs) {
state->regs = regs;
@@ -337,6 +355,13 @@ bad_address:
state->regs->sp < (unsigned long)task_pt_regs(state->task))
goto the_end;
+ /*
+ * There are some known frame pointer issues on 32-bit. Disable
+ * unwinder warnings on 32-bit until it gets objtool support.
+ */
+ if (IS_ENABLED(CONFIG_X86_32))
+ goto the_end;
+
if (state->regs) {
printk_deferred_once(KERN_WARNING
"WARNING: kernel stack regs at %p in %s:%d has bad 'bp' value %p\n",
diff --git a/arch/x86/kernel/unwind_guess.c b/arch/x86/kernel/unwind_guess.c
index 039f36738e49..4f0e17b90463 100644
--- a/arch/x86/kernel/unwind_guess.c
+++ b/arch/x86/kernel/unwind_guess.c
@@ -19,6 +19,11 @@ unsigned long unwind_get_return_address(struct unwind_state *state)
}
EXPORT_SYMBOL_GPL(unwind_get_return_address);
+unsigned long *unwind_get_return_address_ptr(struct unwind_state *state)
+{
+ return NULL;
+}
+
bool unwind_next_frame(struct unwind_state *state)
{
struct stack_info *info = &state->stack_info;
diff --git a/arch/x86/kernel/unwind_orc.c b/arch/x86/kernel/unwind_orc.c
new file mode 100644
index 000000000000..570b70d3f604
--- /dev/null
+++ b/arch/x86/kernel/unwind_orc.c
@@ -0,0 +1,582 @@
+#include <linux/module.h>
+#include <linux/sort.h>
+#include <asm/ptrace.h>
+#include <asm/stacktrace.h>
+#include <asm/unwind.h>
+#include <asm/orc_types.h>
+#include <asm/orc_lookup.h>
+#include <asm/sections.h>
+
+#define orc_warn(fmt, ...) \
+ printk_deferred_once(KERN_WARNING pr_fmt("WARNING: " fmt), ##__VA_ARGS__)
+
+extern int __start_orc_unwind_ip[];
+extern int __stop_orc_unwind_ip[];
+extern struct orc_entry __start_orc_unwind[];
+extern struct orc_entry __stop_orc_unwind[];
+
+static DEFINE_MUTEX(sort_mutex);
+int *cur_orc_ip_table = __start_orc_unwind_ip;
+struct orc_entry *cur_orc_table = __start_orc_unwind;
+
+unsigned int lookup_num_blocks;
+bool orc_init;
+
+static inline unsigned long orc_ip(const int *ip)
+{
+ return (unsigned long)ip + *ip;
+}
+
+static struct orc_entry *__orc_find(int *ip_table, struct orc_entry *u_table,
+ unsigned int num_entries, unsigned long ip)
+{
+ int *first = ip_table;
+ int *last = ip_table + num_entries - 1;
+ int *mid = first, *found = first;
+
+ if (!num_entries)
+ return NULL;
+
+ /*
+ * Do a binary range search to find the rightmost duplicate of a given
+ * starting address. Some entries are section terminators which are
+ * "weak" entries for ensuring there are no gaps. They should be
+ * ignored when they conflict with a real entry.
+ */
+ while (first <= last) {
+ mid = first + ((last - first) / 2);
+
+ if (orc_ip(mid) <= ip) {
+ found = mid;
+ first = mid + 1;
+ } else
+ last = mid - 1;
+ }
+
+ return u_table + (found - ip_table);
+}
+
+#ifdef CONFIG_MODULES
+static struct orc_entry *orc_module_find(unsigned long ip)
+{
+ struct module *mod;
+
+ mod = __module_address(ip);
+ if (!mod || !mod->arch.orc_unwind || !mod->arch.orc_unwind_ip)
+ return NULL;
+ return __orc_find(mod->arch.orc_unwind_ip, mod->arch.orc_unwind,
+ mod->arch.num_orcs, ip);
+}
+#else
+static struct orc_entry *orc_module_find(unsigned long ip)
+{
+ return NULL;
+}
+#endif
+
+static struct orc_entry *orc_find(unsigned long ip)
+{
+ if (!orc_init)
+ return NULL;
+
+ /* For non-init vmlinux addresses, use the fast lookup table: */
+ if (ip >= LOOKUP_START_IP && ip < LOOKUP_STOP_IP) {
+ unsigned int idx, start, stop;
+
+ idx = (ip - LOOKUP_START_IP) / LOOKUP_BLOCK_SIZE;
+
+ if (unlikely((idx >= lookup_num_blocks-1))) {
+ orc_warn("WARNING: bad lookup idx: idx=%u num=%u ip=%lx\n",
+ idx, lookup_num_blocks, ip);
+ return NULL;
+ }
+
+ start = orc_lookup[idx];
+ stop = orc_lookup[idx + 1] + 1;
+
+ if (unlikely((__start_orc_unwind + start >= __stop_orc_unwind) ||
+ (__start_orc_unwind + stop > __stop_orc_unwind))) {
+ orc_warn("WARNING: bad lookup value: idx=%u num=%u start=%u stop=%u ip=%lx\n",
+ idx, lookup_num_blocks, start, stop, ip);
+ return NULL;
+ }
+
+ return __orc_find(__start_orc_unwind_ip + start,
+ __start_orc_unwind + start, stop - start, ip);
+ }
+
+ /* vmlinux .init slow lookup: */
+ if (ip >= (unsigned long)_sinittext && ip < (unsigned long)_einittext)
+ return __orc_find(__start_orc_unwind_ip, __start_orc_unwind,
+ __stop_orc_unwind_ip - __start_orc_unwind_ip, ip);
+
+ /* Module lookup: */
+ return orc_module_find(ip);
+}
+
+static void orc_sort_swap(void *_a, void *_b, int size)
+{
+ struct orc_entry *orc_a, *orc_b;
+ struct orc_entry orc_tmp;
+ int *a = _a, *b = _b, tmp;
+ int delta = _b - _a;
+
+ /* Swap the .orc_unwind_ip entries: */
+ tmp = *a;
+ *a = *b + delta;
+ *b = tmp - delta;
+
+ /* Swap the corresponding .orc_unwind entries: */
+ orc_a = cur_orc_table + (a - cur_orc_ip_table);
+ orc_b = cur_orc_table + (b - cur_orc_ip_table);
+ orc_tmp = *orc_a;
+ *orc_a = *orc_b;
+ *orc_b = orc_tmp;
+}
+
+static int orc_sort_cmp(const void *_a, const void *_b)
+{
+ struct orc_entry *orc_a;
+ const int *a = _a, *b = _b;
+ unsigned long a_val = orc_ip(a);
+ unsigned long b_val = orc_ip(b);
+
+ if (a_val > b_val)
+ return 1;
+ if (a_val < b_val)
+ return -1;
+
+ /*
+ * The "weak" section terminator entries need to always be on the left
+ * to ensure the lookup code skips them in favor of real entries.
+ * These terminator entries exist to handle any gaps created by
+ * whitelisted .o files which didn't get objtool generation.
+ */
+ orc_a = cur_orc_table + (a - cur_orc_ip_table);
+ return orc_a->sp_reg == ORC_REG_UNDEFINED ? -1 : 1;
+}
+
+#ifdef CONFIG_MODULES
+void unwind_module_init(struct module *mod, void *_orc_ip, size_t orc_ip_size,
+ void *_orc, size_t orc_size)
+{
+ int *orc_ip = _orc_ip;
+ struct orc_entry *orc = _orc;
+ unsigned int num_entries = orc_ip_size / sizeof(int);
+
+ WARN_ON_ONCE(orc_ip_size % sizeof(int) != 0 ||
+ orc_size % sizeof(*orc) != 0 ||
+ num_entries != orc_size / sizeof(*orc));
+
+ /*
+ * The 'cur_orc_*' globals allow the orc_sort_swap() callback to
+ * associate an .orc_unwind_ip table entry with its corresponding
+ * .orc_unwind entry so they can both be swapped.
+ */
+ mutex_lock(&sort_mutex);
+ cur_orc_ip_table = orc_ip;
+ cur_orc_table = orc;
+ sort(orc_ip, num_entries, sizeof(int), orc_sort_cmp, orc_sort_swap);
+ mutex_unlock(&sort_mutex);
+
+ mod->arch.orc_unwind_ip = orc_ip;
+ mod->arch.orc_unwind = orc;
+ mod->arch.num_orcs = num_entries;
+}
+#endif
+
+void __init unwind_init(void)
+{
+ size_t orc_ip_size = (void *)__stop_orc_unwind_ip - (void *)__start_orc_unwind_ip;
+ size_t orc_size = (void *)__stop_orc_unwind - (void *)__start_orc_unwind;
+ size_t num_entries = orc_ip_size / sizeof(int);
+ struct orc_entry *orc;
+ int i;
+
+ if (!num_entries || orc_ip_size % sizeof(int) != 0 ||
+ orc_size % sizeof(struct orc_entry) != 0 ||
+ num_entries != orc_size / sizeof(struct orc_entry)) {
+ orc_warn("WARNING: Bad or missing .orc_unwind table. Disabling unwinder.\n");
+ return;
+ }
+
+ /* Sort the .orc_unwind and .orc_unwind_ip tables: */
+ sort(__start_orc_unwind_ip, num_entries, sizeof(int), orc_sort_cmp,
+ orc_sort_swap);
+
+ /* Initialize the fast lookup table: */
+ lookup_num_blocks = orc_lookup_end - orc_lookup;
+ for (i = 0; i < lookup_num_blocks-1; i++) {
+ orc = __orc_find(__start_orc_unwind_ip, __start_orc_unwind,
+ num_entries,
+ LOOKUP_START_IP + (LOOKUP_BLOCK_SIZE * i));
+ if (!orc) {
+ orc_warn("WARNING: Corrupt .orc_unwind table. Disabling unwinder.\n");
+ return;
+ }
+
+ orc_lookup[i] = orc - __start_orc_unwind;
+ }
+
+ /* Initialize the ending block: */
+ orc = __orc_find(__start_orc_unwind_ip, __start_orc_unwind, num_entries,
+ LOOKUP_STOP_IP);
+ if (!orc) {
+ orc_warn("WARNING: Corrupt .orc_unwind table. Disabling unwinder.\n");
+ return;
+ }
+ orc_lookup[lookup_num_blocks-1] = orc - __start_orc_unwind;
+
+ orc_init = true;
+}
+
+unsigned long unwind_get_return_address(struct unwind_state *state)
+{
+ if (unwind_done(state))
+ return 0;
+
+ return __kernel_text_address(state->ip) ? state->ip : 0;
+}
+EXPORT_SYMBOL_GPL(unwind_get_return_address);
+
+unsigned long *unwind_get_return_address_ptr(struct unwind_state *state)
+{
+ if (unwind_done(state))
+ return NULL;
+
+ if (state->regs)
+ return &state->regs->ip;
+
+ if (state->sp)
+ return (unsigned long *)state->sp - 1;
+
+ return NULL;
+}
+
+static bool stack_access_ok(struct unwind_state *state, unsigned long addr,
+ size_t len)
+{
+ struct stack_info *info = &state->stack_info;
+
+ /*
+ * If the address isn't on the current stack, switch to the next one.
+ *
+ * We may have to traverse multiple stacks to deal with the possibility
+ * that info->next_sp could point to an empty stack and the address
+ * could be on a subsequent stack.
+ */
+ while (!on_stack(info, (void *)addr, len))
+ if (get_stack_info(info->next_sp, state->task, info,
+ &state->stack_mask))
+ return false;
+
+ return true;
+}
+
+static bool deref_stack_reg(struct unwind_state *state, unsigned long addr,
+ unsigned long *val)
+{
+ if (!stack_access_ok(state, addr, sizeof(long)))
+ return false;
+
+ *val = READ_ONCE_TASK_STACK(state->task, *(unsigned long *)addr);
+ return true;
+}
+
+#define REGS_SIZE (sizeof(struct pt_regs))
+#define SP_OFFSET (offsetof(struct pt_regs, sp))
+#define IRET_REGS_SIZE (REGS_SIZE - offsetof(struct pt_regs, ip))
+#define IRET_SP_OFFSET (SP_OFFSET - offsetof(struct pt_regs, ip))
+
+static bool deref_stack_regs(struct unwind_state *state, unsigned long addr,
+ unsigned long *ip, unsigned long *sp, bool full)
+{
+ size_t regs_size = full ? REGS_SIZE : IRET_REGS_SIZE;
+ size_t sp_offset = full ? SP_OFFSET : IRET_SP_OFFSET;
+ struct pt_regs *regs = (struct pt_regs *)(addr + regs_size - REGS_SIZE);
+
+ if (IS_ENABLED(CONFIG_X86_64)) {
+ if (!stack_access_ok(state, addr, regs_size))
+ return false;
+
+ *ip = regs->ip;
+ *sp = regs->sp;
+
+ return true;
+ }
+
+ if (!stack_access_ok(state, addr, sp_offset))
+ return false;
+
+ *ip = regs->ip;
+
+ if (user_mode(regs)) {
+ if (!stack_access_ok(state, addr + sp_offset,
+ REGS_SIZE - SP_OFFSET))
+ return false;
+
+ *sp = regs->sp;
+ } else
+ *sp = (unsigned long)&regs->sp;
+
+ return true;
+}
+
+bool unwind_next_frame(struct unwind_state *state)
+{
+ unsigned long ip_p, sp, orig_ip, prev_sp = state->sp;
+ enum stack_type prev_type = state->stack_info.type;
+ struct orc_entry *orc;
+ struct pt_regs *ptregs;
+ bool indirect = false;
+
+ if (unwind_done(state))
+ return false;
+
+ /* Don't let modules unload while we're reading their ORC data. */
+ preempt_disable();
+
+ /* Have we reached the end? */
+ if (state->regs && user_mode(state->regs))
+ goto done;
+
+ /*
+ * Find the orc_entry associated with the text address.
+ *
+ * Decrement call return addresses by one so they work for sibling
+ * calls and calls to noreturn functions.
+ */
+ orc = orc_find(state->signal ? state->ip : state->ip - 1);
+ if (!orc || orc->sp_reg == ORC_REG_UNDEFINED)
+ goto done;
+ orig_ip = state->ip;
+
+ /* Find the previous frame's stack: */
+ switch (orc->sp_reg) {
+ case ORC_REG_SP:
+ sp = state->sp + orc->sp_offset;
+ break;
+
+ case ORC_REG_BP:
+ sp = state->bp + orc->sp_offset;
+ break;
+
+ case ORC_REG_SP_INDIRECT:
+ sp = state->sp + orc->sp_offset;
+ indirect = true;
+ break;
+
+ case ORC_REG_BP_INDIRECT:
+ sp = state->bp + orc->sp_offset;
+ indirect = true;
+ break;
+
+ case ORC_REG_R10:
+ if (!state->regs || !state->full_regs) {
+ orc_warn("missing regs for base reg R10 at ip %p\n",
+ (void *)state->ip);
+ goto done;
+ }
+ sp = state->regs->r10;
+ break;
+
+ case ORC_REG_R13:
+ if (!state->regs || !state->full_regs) {
+ orc_warn("missing regs for base reg R13 at ip %p\n",
+ (void *)state->ip);
+ goto done;
+ }
+ sp = state->regs->r13;
+ break;
+
+ case ORC_REG_DI:
+ if (!state->regs || !state->full_regs) {
+ orc_warn("missing regs for base reg DI at ip %p\n",
+ (void *)state->ip);
+ goto done;
+ }
+ sp = state->regs->di;
+ break;
+
+ case ORC_REG_DX:
+ if (!state->regs || !state->full_regs) {
+ orc_warn("missing regs for base reg DX at ip %p\n",
+ (void *)state->ip);
+ goto done;
+ }
+ sp = state->regs->dx;
+ break;
+
+ default:
+ orc_warn("unknown SP base reg %d for ip %p\n",
+ orc->sp_reg, (void *)state->ip);
+ goto done;
+ }
+
+ if (indirect) {
+ if (!deref_stack_reg(state, sp, &sp))
+ goto done;
+ }
+
+ /* Find IP, SP and possibly regs: */
+ switch (orc->type) {
+ case ORC_TYPE_CALL:
+ ip_p = sp - sizeof(long);
+
+ if (!deref_stack_reg(state, ip_p, &state->ip))
+ goto done;
+
+ state->ip = ftrace_graph_ret_addr(state->task, &state->graph_idx,
+ state->ip, (void *)ip_p);
+
+ state->sp = sp;
+ state->regs = NULL;
+ state->signal = false;
+ break;
+
+ case ORC_TYPE_REGS:
+ if (!deref_stack_regs(state, sp, &state->ip, &state->sp, true)) {
+ orc_warn("can't dereference registers at %p for ip %p\n",
+ (void *)sp, (void *)orig_ip);
+ goto done;
+ }
+
+ state->regs = (struct pt_regs *)sp;
+ state->full_regs = true;
+ state->signal = true;
+ break;
+
+ case ORC_TYPE_REGS_IRET:
+ if (!deref_stack_regs(state, sp, &state->ip, &state->sp, false)) {
+ orc_warn("can't dereference iret registers at %p for ip %p\n",
+ (void *)sp, (void *)orig_ip);
+ goto done;
+ }
+
+ ptregs = container_of((void *)sp, struct pt_regs, ip);
+ if ((unsigned long)ptregs >= prev_sp &&
+ on_stack(&state->stack_info, ptregs, REGS_SIZE)) {
+ state->regs = ptregs;
+ state->full_regs = false;
+ } else
+ state->regs = NULL;
+
+ state->signal = true;
+ break;
+
+ default:
+ orc_warn("unknown .orc_unwind entry type %d\n", orc->type);
+ break;
+ }
+
+ /* Find BP: */
+ switch (orc->bp_reg) {
+ case ORC_REG_UNDEFINED:
+ if (state->regs && state->full_regs)
+ state->bp = state->regs->bp;
+ break;
+
+ case ORC_REG_PREV_SP:
+ if (!deref_stack_reg(state, sp + orc->bp_offset, &state->bp))
+ goto done;
+ break;
+
+ case ORC_REG_BP:
+ if (!deref_stack_reg(state, state->bp + orc->bp_offset, &state->bp))
+ goto done;
+ break;
+
+ default:
+ orc_warn("unknown BP base reg %d for ip %p\n",
+ orc->bp_reg, (void *)orig_ip);
+ goto done;
+ }
+
+ /* Prevent a recursive loop due to bad ORC data: */
+ if (state->stack_info.type == prev_type &&
+ on_stack(&state->stack_info, (void *)state->sp, sizeof(long)) &&
+ state->sp <= prev_sp) {
+ orc_warn("stack going in the wrong direction? ip=%p\n",
+ (void *)orig_ip);
+ goto done;
+ }
+
+ preempt_enable();
+ return true;
+
+done:
+ preempt_enable();
+ state->stack_info.type = STACK_TYPE_UNKNOWN;
+ return false;
+}
+EXPORT_SYMBOL_GPL(unwind_next_frame);
+
+void __unwind_start(struct unwind_state *state, struct task_struct *task,
+ struct pt_regs *regs, unsigned long *first_frame)
+{
+ memset(state, 0, sizeof(*state));
+ state->task = task;
+
+ /*
+ * Refuse to unwind the stack of a task while it's executing on another
+ * CPU. This check is racy, but that's ok: the unwinder has other
+ * checks to prevent it from going off the rails.
+ */
+ if (task_on_another_cpu(task))
+ goto done;
+
+ if (regs) {
+ if (user_mode(regs))
+ goto done;
+
+ state->ip = regs->ip;
+ state->sp = kernel_stack_pointer(regs);
+ state->bp = regs->bp;
+ state->regs = regs;
+ state->full_regs = true;
+ state->signal = true;
+
+ } else if (task == current) {
+ asm volatile("lea (%%rip), %0\n\t"
+ "mov %%rsp, %1\n\t"
+ "mov %%rbp, %2\n\t"
+ : "=r" (state->ip), "=r" (state->sp),
+ "=r" (state->bp));
+
+ } else {
+ struct inactive_task_frame *frame = (void *)task->thread.sp;
+
+ state->sp = task->thread.sp;
+ state->bp = READ_ONCE_NOCHECK(frame->bp);
+ state->ip = READ_ONCE_NOCHECK(frame->ret_addr);
+ }
+
+ if (get_stack_info((unsigned long *)state->sp, state->task,
+ &state->stack_info, &state->stack_mask))
+ return;
+
+ /*
+ * The caller can provide the address of the first frame directly
+ * (first_frame) or indirectly (regs->sp) to indicate which stack frame
+ * to start unwinding at. Skip ahead until we reach it.
+ */
+
+ /* When starting from regs, skip the regs frame: */
+ if (regs) {
+ unwind_next_frame(state);
+ return;
+ }
+
+ /* Otherwise, skip ahead to the user-specified starting frame: */
+ while (!unwind_done(state) &&
+ (!on_stack(&state->stack_info, first_frame, sizeof(long)) ||
+ state->sp <= (unsigned long)first_frame))
+ unwind_next_frame(state);
+
+ return;
+
+done:
+ state->stack_info.type = STACK_TYPE_UNKNOWN;
+ return;
+}
+EXPORT_SYMBOL_GPL(__unwind_start);
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index c8a3b61be0aa..f05f00acac89 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -24,6 +24,7 @@
#include <asm/asm-offsets.h>
#include <asm/thread_info.h>
#include <asm/page_types.h>
+#include <asm/orc_lookup.h>
#include <asm/cache.h>
#include <asm/boot.h>
@@ -148,6 +149,8 @@ SECTIONS
BUG_TABLE
+ ORC_UNWIND_TABLE
+
. = ALIGN(PAGE_SIZE);
__vvar_page = .;
diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index 760433b2574a..3c48bc8bf08c 100644
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -22,7 +22,8 @@ config KVM
depends on HAVE_KVM
depends on HIGH_RES_TIMERS
# for TASKSTATS/TASK_DELAY_ACCT:
- depends on NET
+ depends on NET && MULTIUSER
+ depends on X86_LOCAL_APIC
select PREEMPT_NOTIFIERS
select MMU_NOTIFIER
select ANON_INODES
@@ -89,6 +90,5 @@ config KVM_MMU_AUDIT
# OK, it's a little counter-intuitive to do this, but it puts it neatly under
# the virtualization menu.
source drivers/vhost/Kconfig
-source drivers/lguest/Kconfig
endif # VIRTUALIZATION
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 59ca2eea522c..0099e10eb045 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -126,16 +126,20 @@ int kvm_update_cpuid(struct kvm_vcpu *vcpu)
best->ebx = xstate_required_size(vcpu->arch.xcr0, true);
/*
- * The existing code assumes virtual address is 48-bit in the canonical
- * address checks; exit if it is ever changed.
+ * The existing code assumes virtual address is 48-bit or 57-bit in the
+ * canonical address checks; exit if it is ever changed.
*/
best = kvm_find_cpuid_entry(vcpu, 0x80000008, 0);
- if (best && ((best->eax & 0xff00) >> 8) != 48 &&
- ((best->eax & 0xff00) >> 8) != 0)
- return -EINVAL;
+ if (best) {
+ int vaddr_bits = (best->eax & 0xff00) >> 8;
+
+ if (vaddr_bits != 48 && vaddr_bits != 57 && vaddr_bits != 0)
+ return -EINVAL;
+ }
/* Update physical-address width */
vcpu->arch.maxphyaddr = cpuid_query_maxphyaddr(vcpu);
+ kvm_mmu_reset_context(vcpu);
kvm_pmu_refresh(vcpu);
return 0;
@@ -383,7 +387,8 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
/* cpuid 7.0.ecx*/
const u32 kvm_cpuid_7_0_ecx_x86_features =
- F(AVX512VBMI) | F(PKU) | 0 /*OSPKE*/ | F(AVX512_VPOPCNTDQ);
+ F(AVX512VBMI) | F(LA57) | F(PKU) |
+ 0 /*OSPKE*/ | F(AVX512_VPOPCNTDQ);
/* cpuid 7.0.edx*/
const u32 kvm_cpuid_7_0_edx_x86_features =
@@ -469,7 +474,7 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
entry->ecx &= kvm_cpuid_7_0_ecx_x86_features;
cpuid_mask(&entry->ecx, CPUID_7_ECX);
/* PKU is not yet implemented for shadow paging. */
- if (!tdp_enabled)
+ if (!tdp_enabled || !boot_cpu_has(X86_FEATURE_OSPKE))
entry->ecx &= ~F(PKU);
entry->edx &= kvm_cpuid_7_0_edx_x86_features;
entry->edx &= get_scattered_cpuid_leaf(7, 0, CPUID_EDX);
@@ -853,16 +858,24 @@ static struct kvm_cpuid_entry2* check_cpuid_limit(struct kvm_vcpu *vcpu,
return kvm_find_cpuid_entry(vcpu, maxlevel->eax, index);
}
-void kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx)
+bool kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx,
+ u32 *ecx, u32 *edx, bool check_limit)
{
u32 function = *eax, index = *ecx;
struct kvm_cpuid_entry2 *best;
+ bool entry_found = true;
best = kvm_find_cpuid_entry(vcpu, function, index);
- if (!best)
+ if (!best) {
+ entry_found = false;
+ if (!check_limit)
+ goto out;
+
best = check_cpuid_limit(vcpu, function, index);
+ }
+out:
if (best) {
*eax = best->eax;
*ebx = best->ebx;
@@ -870,7 +883,8 @@ void kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx)
*edx = best->edx;
} else
*eax = *ebx = *ecx = *edx = 0;
- trace_kvm_cpuid(function, *eax, *ebx, *ecx, *edx);
+ trace_kvm_cpuid(function, *eax, *ebx, *ecx, *edx, entry_found);
+ return entry_found;
}
EXPORT_SYMBOL_GPL(kvm_cpuid);
@@ -883,7 +897,7 @@ int kvm_emulate_cpuid(struct kvm_vcpu *vcpu)
eax = kvm_register_read(vcpu, VCPU_REGS_RAX);
ecx = kvm_register_read(vcpu, VCPU_REGS_RCX);
- kvm_cpuid(vcpu, &eax, &ebx, &ecx, &edx);
+ kvm_cpuid(vcpu, &eax, &ebx, &ecx, &edx, true);
kvm_register_write(vcpu, VCPU_REGS_RAX, eax);
kvm_register_write(vcpu, VCPU_REGS_RBX, ebx);
kvm_register_write(vcpu, VCPU_REGS_RCX, ecx);
diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
index a6fd40aade7c..0bc5c1315708 100644
--- a/arch/x86/kvm/cpuid.h
+++ b/arch/x86/kvm/cpuid.h
@@ -3,6 +3,7 @@
#include "x86.h"
#include <asm/cpu.h>
+#include <asm/processor.h>
int kvm_update_cpuid(struct kvm_vcpu *vcpu);
bool kvm_mpx_supported(void);
@@ -20,7 +21,8 @@ int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
struct kvm_cpuid2 *cpuid,
struct kvm_cpuid_entry2 __user *entries);
-void kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx);
+bool kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx,
+ u32 *ecx, u32 *edx, bool check_limit);
int cpuid_query_maxphyaddr(struct kvm_vcpu *vcpu);
@@ -29,95 +31,86 @@ static inline int cpuid_maxphyaddr(struct kvm_vcpu *vcpu)
return vcpu->arch.maxphyaddr;
}
-static inline bool guest_cpuid_has_xsave(struct kvm_vcpu *vcpu)
-{
- struct kvm_cpuid_entry2 *best;
-
- if (!static_cpu_has(X86_FEATURE_XSAVE))
- return false;
+struct cpuid_reg {
+ u32 function;
+ u32 index;
+ int reg;
+};
- best = kvm_find_cpuid_entry(vcpu, 1, 0);
- return best && (best->ecx & bit(X86_FEATURE_XSAVE));
-}
-
-static inline bool guest_cpuid_has_mtrr(struct kvm_vcpu *vcpu)
-{
- struct kvm_cpuid_entry2 *best;
-
- best = kvm_find_cpuid_entry(vcpu, 1, 0);
- return best && (best->edx & bit(X86_FEATURE_MTRR));
-}
-
-static inline bool guest_cpuid_has_tsc_adjust(struct kvm_vcpu *vcpu)
-{
- struct kvm_cpuid_entry2 *best;
-
- best = kvm_find_cpuid_entry(vcpu, 7, 0);
- return best && (best->ebx & bit(X86_FEATURE_TSC_ADJUST));
-}
+static const struct cpuid_reg reverse_cpuid[] = {
+ [CPUID_1_EDX] = { 1, 0, CPUID_EDX},
+ [CPUID_8000_0001_EDX] = {0x80000001, 0, CPUID_EDX},
+ [CPUID_8086_0001_EDX] = {0x80860001, 0, CPUID_EDX},
+ [CPUID_1_ECX] = { 1, 0, CPUID_ECX},
+ [CPUID_C000_0001_EDX] = {0xc0000001, 0, CPUID_EDX},
+ [CPUID_8000_0001_ECX] = {0xc0000001, 0, CPUID_ECX},
+ [CPUID_7_0_EBX] = { 7, 0, CPUID_EBX},
+ [CPUID_D_1_EAX] = { 0xd, 1, CPUID_EAX},
+ [CPUID_F_0_EDX] = { 0xf, 0, CPUID_EDX},
+ [CPUID_F_1_EDX] = { 0xf, 1, CPUID_EDX},
+ [CPUID_8000_0008_EBX] = {0x80000008, 0, CPUID_EBX},
+ [CPUID_6_EAX] = { 6, 0, CPUID_EAX},
+ [CPUID_8000_000A_EDX] = {0x8000000a, 0, CPUID_EDX},
+ [CPUID_7_ECX] = { 7, 0, CPUID_ECX},
+ [CPUID_8000_0007_EBX] = {0x80000007, 0, CPUID_EBX},
+};
-static inline bool guest_cpuid_has_smep(struct kvm_vcpu *vcpu)
+static __always_inline struct cpuid_reg x86_feature_cpuid(unsigned x86_feature)
{
- struct kvm_cpuid_entry2 *best;
-
- best = kvm_find_cpuid_entry(vcpu, 7, 0);
- return best && (best->ebx & bit(X86_FEATURE_SMEP));
-}
+ unsigned x86_leaf = x86_feature / 32;
-static inline bool guest_cpuid_has_smap(struct kvm_vcpu *vcpu)
-{
- struct kvm_cpuid_entry2 *best;
+ BUILD_BUG_ON(x86_leaf >= ARRAY_SIZE(reverse_cpuid));
+ BUILD_BUG_ON(reverse_cpuid[x86_leaf].function == 0);
- best = kvm_find_cpuid_entry(vcpu, 7, 0);
- return best && (best->ebx & bit(X86_FEATURE_SMAP));
+ return reverse_cpuid[x86_leaf];
}
-static inline bool guest_cpuid_has_fsgsbase(struct kvm_vcpu *vcpu)
+static __always_inline int *guest_cpuid_get_register(struct kvm_vcpu *vcpu, unsigned x86_feature)
{
- struct kvm_cpuid_entry2 *best;
+ struct kvm_cpuid_entry2 *entry;
+ const struct cpuid_reg cpuid = x86_feature_cpuid(x86_feature);
- best = kvm_find_cpuid_entry(vcpu, 7, 0);
- return best && (best->ebx & bit(X86_FEATURE_FSGSBASE));
-}
+ entry = kvm_find_cpuid_entry(vcpu, cpuid.function, cpuid.index);
+ if (!entry)
+ return NULL;
-static inline bool guest_cpuid_has_pku(struct kvm_vcpu *vcpu)
-{
- struct kvm_cpuid_entry2 *best;
-
- best = kvm_find_cpuid_entry(vcpu, 7, 0);
- return best && (best->ecx & bit(X86_FEATURE_PKU));
+ switch (cpuid.reg) {
+ case CPUID_EAX:
+ return &entry->eax;
+ case CPUID_EBX:
+ return &entry->ebx;
+ case CPUID_ECX:
+ return &entry->ecx;
+ case CPUID_EDX:
+ return &entry->edx;
+ default:
+ BUILD_BUG();
+ return NULL;
+ }
}
-static inline bool guest_cpuid_has_longmode(struct kvm_vcpu *vcpu)
+static __always_inline bool guest_cpuid_has(struct kvm_vcpu *vcpu, unsigned x86_feature)
{
- struct kvm_cpuid_entry2 *best;
+ int *reg;
- best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
- return best && (best->edx & bit(X86_FEATURE_LM));
-}
-
-static inline bool guest_cpuid_has_osvw(struct kvm_vcpu *vcpu)
-{
- struct kvm_cpuid_entry2 *best;
-
- best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
- return best && (best->ecx & bit(X86_FEATURE_OSVW));
-}
+ if (x86_feature == X86_FEATURE_XSAVE &&
+ !static_cpu_has(X86_FEATURE_XSAVE))
+ return false;
-static inline bool guest_cpuid_has_pcid(struct kvm_vcpu *vcpu)
-{
- struct kvm_cpuid_entry2 *best;
+ reg = guest_cpuid_get_register(vcpu, x86_feature);
+ if (!reg)
+ return false;
- best = kvm_find_cpuid_entry(vcpu, 1, 0);
- return best && (best->ecx & bit(X86_FEATURE_PCID));
+ return *reg & bit(x86_feature);
}
-static inline bool guest_cpuid_has_x2apic(struct kvm_vcpu *vcpu)
+static __always_inline void guest_cpuid_clear(struct kvm_vcpu *vcpu, unsigned x86_feature)
{
- struct kvm_cpuid_entry2 *best;
+ int *reg;
- best = kvm_find_cpuid_entry(vcpu, 1, 0);
- return best && (best->ecx & bit(X86_FEATURE_X2APIC));
+ reg = guest_cpuid_get_register(vcpu, x86_feature);
+ if (reg)
+ *reg &= ~bit(x86_feature);
}
static inline bool guest_cpuid_is_amd(struct kvm_vcpu *vcpu)
@@ -128,50 +121,6 @@ static inline bool guest_cpuid_is_amd(struct kvm_vcpu *vcpu)
return best && best->ebx == X86EMUL_CPUID_VENDOR_AuthenticAMD_ebx;
}
-static inline bool guest_cpuid_has_gbpages(struct kvm_vcpu *vcpu)
-{
- struct kvm_cpuid_entry2 *best;
-
- best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
- return best && (best->edx & bit(X86_FEATURE_GBPAGES));
-}
-
-static inline bool guest_cpuid_has_rtm(struct kvm_vcpu *vcpu)
-{
- struct kvm_cpuid_entry2 *best;
-
- best = kvm_find_cpuid_entry(vcpu, 7, 0);
- return best && (best->ebx & bit(X86_FEATURE_RTM));
-}
-
-static inline bool guest_cpuid_has_rdtscp(struct kvm_vcpu *vcpu)
-{
- struct kvm_cpuid_entry2 *best;
-
- best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
- return best && (best->edx & bit(X86_FEATURE_RDTSCP));
-}
-
-/*
- * NRIPS is provided through cpuidfn 0x8000000a.edx bit 3
- */
-#define BIT_NRIPS 3
-
-static inline bool guest_cpuid_has_nrips(struct kvm_vcpu *vcpu)
-{
- struct kvm_cpuid_entry2 *best;
-
- best = kvm_find_cpuid_entry(vcpu, 0x8000000a, 0);
-
- /*
- * NRIPS is a scattered cpuid feature, so we can't use
- * X86_FEATURE_NRIPS here (X86_FEATURE_NRIPS would be bit
- * position 8, not 3).
- */
- return best && (best->edx & bit(BIT_NRIPS));
-}
-#undef BIT_NRIPS
-
static inline int guest_cpuid_family(struct kvm_vcpu *vcpu)
{
struct kvm_cpuid_entry2 *best;
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 80890dee66ce..d90cdc77e077 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -28,6 +28,7 @@
#include "x86.h"
#include "tss.h"
+#include "mmu.h"
/*
* Operand types
@@ -424,8 +425,10 @@ static int fastop(struct x86_emulate_ctxt *ctxt, void (*fop)(struct fastop *));
#op " %al \n\t" \
FOP_RET
-asm(".global kvm_fastop_exception \n"
- "kvm_fastop_exception: xor %esi, %esi; ret");
+asm(".pushsection .fixup, \"ax\"\n"
+ ".global kvm_fastop_exception \n"
+ "kvm_fastop_exception: xor %esi, %esi; ret\n"
+ ".popsection");
FOP_START(setcc)
FOP_SETCC(seto)
@@ -688,16 +691,18 @@ static __always_inline int __linearize(struct x86_emulate_ctxt *ctxt,
ulong la;
u32 lim;
u16 sel;
+ u8 va_bits;
la = seg_base(ctxt, addr.seg) + addr.ea;
*max_size = 0;
switch (mode) {
case X86EMUL_MODE_PROT64:
*linear = la;
- if (is_noncanonical_address(la))
+ va_bits = ctxt_virt_addr_bits(ctxt);
+ if (get_canonical(la, va_bits) != la)
goto bad;
- *max_size = min_t(u64, ~0u, (1ull << 48) - la);
+ *max_size = min_t(u64, ~0u, (1ull << va_bits) - la);
if (size > *max_size)
goto bad;
break;
@@ -900,7 +905,7 @@ static __always_inline int do_insn_fetch_bytes(struct x86_emulate_ctxt *ctxt,
if (rc != X86EMUL_CONTINUE) \
goto done; \
ctxt->_eip += sizeof(_type); \
- _x = *(_type __aligned(1) *) ctxt->fetch.ptr; \
+ memcpy(&_x, ctxt->fetch.ptr, sizeof(_type)); \
ctxt->fetch.ptr += sizeof(_type); \
_x; \
})
@@ -1748,8 +1753,8 @@ static int __load_segment_descriptor(struct x86_emulate_ctxt *ctxt,
sizeof(base3), &ctxt->exception);
if (ret != X86EMUL_CONTINUE)
return ret;
- if (is_noncanonical_address(get_desc_base(&seg_desc) |
- ((u64)base3 << 32)))
+ if (emul_is_noncanonical_address(get_desc_base(&seg_desc) |
+ ((u64)base3 << 32), ctxt))
return emulate_gp(ctxt, 0);
}
load:
@@ -2333,7 +2338,7 @@ static int emulator_has_longmode(struct x86_emulate_ctxt *ctxt)
eax = 0x80000001;
ecx = 0;
- ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx);
+ ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, false);
return edx & bit(X86_FEATURE_LM);
}
@@ -2636,7 +2641,7 @@ static bool vendor_intel(struct x86_emulate_ctxt *ctxt)
u32 eax, ebx, ecx, edx;
eax = ecx = 0;
- ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx);
+ ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, false);
return ebx == X86EMUL_CPUID_VENDOR_GenuineIntel_ebx
&& ecx == X86EMUL_CPUID_VENDOR_GenuineIntel_ecx
&& edx == X86EMUL_CPUID_VENDOR_GenuineIntel_edx;
@@ -2656,7 +2661,7 @@ static bool em_syscall_is_enabled(struct x86_emulate_ctxt *ctxt)
eax = 0x00000000;
ecx = 0x00000000;
- ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx);
+ ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, false);
/*
* Intel ("GenuineIntel")
* remark: Intel CPUs only support "syscall" in 64bit
@@ -2840,8 +2845,8 @@ static int em_sysexit(struct x86_emulate_ctxt *ctxt)
ss_sel = cs_sel + 8;
cs.d = 0;
cs.l = 1;
- if (is_noncanonical_address(rcx) ||
- is_noncanonical_address(rdx))
+ if (emul_is_noncanonical_address(rcx, ctxt) ||
+ emul_is_noncanonical_address(rdx, ctxt))
return emulate_gp(ctxt, 0);
break;
}
@@ -3551,7 +3556,7 @@ static int em_movbe(struct x86_emulate_ctxt *ctxt)
/*
* Check MOVBE is set in the guest-visible CPUID leaf.
*/
- ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx);
+ ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, false);
if (!(ecx & FFL(MOVBE)))
return emulate_ud(ctxt);
@@ -3756,7 +3761,7 @@ static int em_lgdt_lidt(struct x86_emulate_ctxt *ctxt, bool lgdt)
if (rc != X86EMUL_CONTINUE)
return rc;
if (ctxt->mode == X86EMUL_MODE_PROT64 &&
- is_noncanonical_address(desc_ptr.address))
+ emul_is_noncanonical_address(desc_ptr.address, ctxt))
return emulate_gp(ctxt, 0);
if (lgdt)
ctxt->ops->set_gdt(ctxt, &desc_ptr);
@@ -3865,7 +3870,7 @@ static int em_cpuid(struct x86_emulate_ctxt *ctxt)
eax = reg_read(ctxt, VCPU_REGS_RAX);
ecx = reg_read(ctxt, VCPU_REGS_RCX);
- ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx);
+ ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, true);
*reg_write(ctxt, VCPU_REGS_RAX) = eax;
*reg_write(ctxt, VCPU_REGS_RBX) = ebx;
*reg_write(ctxt, VCPU_REGS_RCX) = ecx;
@@ -3924,7 +3929,7 @@ static int check_fxsr(struct x86_emulate_ctxt *ctxt)
{
u32 eax = 1, ebx, ecx = 0, edx;
- ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx);
+ ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, false);
if (!(edx & FFL(FXSR)))
return emulate_ud(ctxt);
@@ -3942,6 +3947,25 @@ static int check_fxsr(struct x86_emulate_ctxt *ctxt)
}
/*
+ * Hardware doesn't save and restore XMM 0-7 without CR4.OSFXSR, but does save
+ * and restore MXCSR.
+ */
+static size_t __fxstate_size(int nregs)
+{
+ return offsetof(struct fxregs_state, xmm_space[0]) + nregs * 16;
+}
+
+static inline size_t fxstate_size(struct x86_emulate_ctxt *ctxt)
+{
+ bool cr4_osfxsr;
+ if (ctxt->mode == X86EMUL_MODE_PROT64)
+ return __fxstate_size(16);
+
+ cr4_osfxsr = ctxt->ops->get_cr(ctxt, 4) & X86_CR4_OSFXSR;
+ return __fxstate_size(cr4_osfxsr ? 8 : 0);
+}
+
+/*
* FXSAVE and FXRSTOR have 4 different formats depending on execution mode,
* 1) 16 bit mode
* 2) 32 bit mode
@@ -3962,7 +3986,6 @@ static int check_fxsr(struct x86_emulate_ctxt *ctxt)
static int em_fxsave(struct x86_emulate_ctxt *ctxt)
{
struct fxregs_state fx_state;
- size_t size;
int rc;
rc = check_fxsr(ctxt);
@@ -3978,68 +4001,42 @@ static int em_fxsave(struct x86_emulate_ctxt *ctxt)
if (rc != X86EMUL_CONTINUE)
return rc;
- if (ctxt->ops->get_cr(ctxt, 4) & X86_CR4_OSFXSR)
- size = offsetof(struct fxregs_state, xmm_space[8 * 16/4]);
- else
- size = offsetof(struct fxregs_state, xmm_space[0]);
-
- return segmented_write_std(ctxt, ctxt->memop.addr.mem, &fx_state, size);
-}
-
-static int fxrstor_fixup(struct x86_emulate_ctxt *ctxt,
- struct fxregs_state *new)
-{
- int rc = X86EMUL_CONTINUE;
- struct fxregs_state old;
-
- rc = asm_safe("fxsave %[fx]", , [fx] "+m"(old));
- if (rc != X86EMUL_CONTINUE)
- return rc;
-
- /*
- * 64 bit host will restore XMM 8-15, which is not correct on non-64
- * bit guests. Load the current values in order to preserve 64 bit
- * XMMs after fxrstor.
- */
-#ifdef CONFIG_X86_64
- /* XXX: accessing XMM 8-15 very awkwardly */
- memcpy(&new->xmm_space[8 * 16/4], &old.xmm_space[8 * 16/4], 8 * 16);
-#endif
-
- /*
- * Hardware doesn't save and restore XMM 0-7 without CR4.OSFXSR, but
- * does save and restore MXCSR.
- */
- if (!(ctxt->ops->get_cr(ctxt, 4) & X86_CR4_OSFXSR))
- memcpy(new->xmm_space, old.xmm_space, 8 * 16);
-
- return rc;
+ return segmented_write_std(ctxt, ctxt->memop.addr.mem, &fx_state,
+ fxstate_size(ctxt));
}
static int em_fxrstor(struct x86_emulate_ctxt *ctxt)
{
struct fxregs_state fx_state;
int rc;
+ size_t size;
rc = check_fxsr(ctxt);
if (rc != X86EMUL_CONTINUE)
return rc;
- rc = segmented_read_std(ctxt, ctxt->memop.addr.mem, &fx_state, 512);
- if (rc != X86EMUL_CONTINUE)
- return rc;
+ ctxt->ops->get_fpu(ctxt);
- if (fx_state.mxcsr >> 16)
- return emulate_gp(ctxt, 0);
+ size = fxstate_size(ctxt);
+ if (size < __fxstate_size(16)) {
+ rc = asm_safe("fxsave %[fx]", , [fx] "+m"(fx_state));
+ if (rc != X86EMUL_CONTINUE)
+ goto out;
+ }
- ctxt->ops->get_fpu(ctxt);
+ rc = segmented_read_std(ctxt, ctxt->memop.addr.mem, &fx_state, size);
+ if (rc != X86EMUL_CONTINUE)
+ goto out;
- if (ctxt->mode < X86EMUL_MODE_PROT64)
- rc = fxrstor_fixup(ctxt, &fx_state);
+ if (fx_state.mxcsr >> 16) {
+ rc = emulate_gp(ctxt, 0);
+ goto out;
+ }
if (rc == X86EMUL_CONTINUE)
rc = asm_safe("fxrstor %[fx]", : [fx] "m"(fx_state));
+out:
ctxt->ops->put_fpu(ctxt);
return rc;
@@ -4105,8 +4102,19 @@ static int check_cr_write(struct x86_emulate_ctxt *ctxt)
u64 rsvd = 0;
ctxt->ops->get_msr(ctxt, MSR_EFER, &efer);
- if (efer & EFER_LMA)
- rsvd = CR3_L_MODE_RESERVED_BITS & ~CR3_PCID_INVD;
+ if (efer & EFER_LMA) {
+ u64 maxphyaddr;
+ u32 eax, ebx, ecx, edx;
+
+ eax = 0x80000008;
+ ecx = 0;
+ if (ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx,
+ &edx, false))
+ maxphyaddr = eax & 0xff;
+ else
+ maxphyaddr = 36;
+ rsvd = rsvd_bits(maxphyaddr, 62);
+ }
if (new_val & rsvd)
return emulate_gp(ctxt, 0);
@@ -5292,7 +5300,6 @@ static void fetch_possible_mmx_operand(struct x86_emulate_ctxt *ctxt,
static int fastop(struct x86_emulate_ctxt *ctxt, void (*fop)(struct fastop *))
{
- register void *__sp asm(_ASM_SP);
ulong flags = (ctxt->eflags & EFLAGS_MASK) | X86_EFLAGS_IF;
if (!(ctxt->d & ByteOp))
@@ -5300,7 +5307,7 @@ static int fastop(struct x86_emulate_ctxt *ctxt, void (*fop)(struct fastop *))
asm("push %[flags]; popf; call *%[fastop]; pushf; pop %[flags]\n"
: "+a"(ctxt->dst.val), "+d"(ctxt->src.val), [flags]"+D"(flags),
- [fastop]"+S"(fop), "+r"(__sp)
+ [fastop]"+S"(fop), ASM_CALL_CONSTRAINT
: "c"(ctxt->src2.val));
ctxt->eflags = (ctxt->eflags & ~EFLAGS_MASK) | (flags & EFLAGS_MASK);
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index ebae57ac5902..dc97f2544b6f 100644
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -106,14 +106,27 @@ static int synic_set_sint(struct kvm_vcpu_hv_synic *synic, int sint,
return 0;
}
-static struct kvm_vcpu_hv_synic *synic_get(struct kvm *kvm, u32 vcpu_id)
+static struct kvm_vcpu *get_vcpu_by_vpidx(struct kvm *kvm, u32 vpidx)
+{
+ struct kvm_vcpu *vcpu = NULL;
+ int i;
+
+ if (vpidx < KVM_MAX_VCPUS)
+ vcpu = kvm_get_vcpu(kvm, vpidx);
+ if (vcpu && vcpu_to_hv_vcpu(vcpu)->vp_index == vpidx)
+ return vcpu;
+ kvm_for_each_vcpu(i, vcpu, kvm)
+ if (vcpu_to_hv_vcpu(vcpu)->vp_index == vpidx)
+ return vcpu;
+ return NULL;
+}
+
+static struct kvm_vcpu_hv_synic *synic_get(struct kvm *kvm, u32 vpidx)
{
struct kvm_vcpu *vcpu;
struct kvm_vcpu_hv_synic *synic;
- if (vcpu_id >= atomic_read(&kvm->online_vcpus))
- return NULL;
- vcpu = kvm_get_vcpu(kvm, vcpu_id);
+ vcpu = get_vcpu_by_vpidx(kvm, vpidx);
if (!vcpu)
return NULL;
synic = vcpu_to_synic(vcpu);
@@ -221,7 +234,8 @@ static int synic_set_msr(struct kvm_vcpu_hv_synic *synic,
synic->version = data;
break;
case HV_X64_MSR_SIEFP:
- if (data & HV_SYNIC_SIEFP_ENABLE)
+ if ((data & HV_SYNIC_SIEFP_ENABLE) && !host &&
+ !synic->dont_zero_synic_pages)
if (kvm_clear_guest(vcpu->kvm,
data & PAGE_MASK, PAGE_SIZE)) {
ret = 1;
@@ -232,7 +246,8 @@ static int synic_set_msr(struct kvm_vcpu_hv_synic *synic,
synic_exit(synic, msr);
break;
case HV_X64_MSR_SIMP:
- if (data & HV_SYNIC_SIMP_ENABLE)
+ if ((data & HV_SYNIC_SIMP_ENABLE) && !host &&
+ !synic->dont_zero_synic_pages)
if (kvm_clear_guest(vcpu->kvm,
data & PAGE_MASK, PAGE_SIZE)) {
ret = 1;
@@ -318,11 +333,11 @@ static int synic_set_irq(struct kvm_vcpu_hv_synic *synic, u32 sint)
return ret;
}
-int kvm_hv_synic_set_irq(struct kvm *kvm, u32 vcpu_id, u32 sint)
+int kvm_hv_synic_set_irq(struct kvm *kvm, u32 vpidx, u32 sint)
{
struct kvm_vcpu_hv_synic *synic;
- synic = synic_get(kvm, vcpu_id);
+ synic = synic_get(kvm, vpidx);
if (!synic)
return -EINVAL;
@@ -341,11 +356,11 @@ void kvm_hv_synic_send_eoi(struct kvm_vcpu *vcpu, int vector)
kvm_hv_notify_acked_sint(vcpu, i);
}
-static int kvm_hv_set_sint_gsi(struct kvm *kvm, u32 vcpu_id, u32 sint, int gsi)
+static int kvm_hv_set_sint_gsi(struct kvm *kvm, u32 vpidx, u32 sint, int gsi)
{
struct kvm_vcpu_hv_synic *synic;
- synic = synic_get(kvm, vcpu_id);
+ synic = synic_get(kvm, vpidx);
if (!synic)
return -EINVAL;
@@ -634,9 +649,10 @@ void kvm_hv_process_stimers(struct kvm_vcpu *vcpu)
}
if ((stimer->config & HV_STIMER_ENABLE) &&
- stimer->count)
- stimer_start(stimer);
- else
+ stimer->count) {
+ if (!stimer->msg_pending)
+ stimer_start(stimer);
+ } else
stimer_cleanup(stimer);
}
}
@@ -687,14 +703,24 @@ void kvm_hv_vcpu_init(struct kvm_vcpu *vcpu)
stimer_init(&hv_vcpu->stimer[i], i);
}
-int kvm_hv_activate_synic(struct kvm_vcpu *vcpu)
+void kvm_hv_vcpu_postcreate(struct kvm_vcpu *vcpu)
{
+ struct kvm_vcpu_hv *hv_vcpu = vcpu_to_hv_vcpu(vcpu);
+
+ hv_vcpu->vp_index = kvm_vcpu_get_idx(vcpu);
+}
+
+int kvm_hv_activate_synic(struct kvm_vcpu *vcpu, bool dont_zero_synic_pages)
+{
+ struct kvm_vcpu_hv_synic *synic = vcpu_to_synic(vcpu);
+
/*
* Hyper-V SynIC auto EOI SINT's are
* not compatible with APICV, so deactivate APICV
*/
kvm_vcpu_deactivate_apicv(vcpu);
- vcpu_to_synic(vcpu)->active = true;
+ synic->active = true;
+ synic->dont_zero_synic_pages = dont_zero_synic_pages;
return 0;
}
@@ -978,6 +1004,11 @@ static int kvm_hv_set_msr(struct kvm_vcpu *vcpu, u32 msr, u64 data, bool host)
struct kvm_vcpu_hv *hv = &vcpu->arch.hyperv;
switch (msr) {
+ case HV_X64_MSR_VP_INDEX:
+ if (!host)
+ return 1;
+ hv->vp_index = (u32)data;
+ break;
case HV_X64_MSR_APIC_ASSIST_PAGE: {
u64 gfn;
unsigned long addr;
@@ -1089,18 +1120,9 @@ static int kvm_hv_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
struct kvm_vcpu_hv *hv = &vcpu->arch.hyperv;
switch (msr) {
- case HV_X64_MSR_VP_INDEX: {
- int r;
- struct kvm_vcpu *v;
-
- kvm_for_each_vcpu(r, v, vcpu->kvm) {
- if (v == vcpu) {
- data = r;
- break;
- }
- }
+ case HV_X64_MSR_VP_INDEX:
+ data = hv->vp_index;
break;
- }
case HV_X64_MSR_EOI:
return kvm_hv_vapic_msr_read(vcpu, APIC_EOI, pdata);
case HV_X64_MSR_ICR:
@@ -1138,6 +1160,12 @@ static int kvm_hv_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
return stimer_get_count(vcpu_to_stimer(vcpu, timer_index),
pdata);
}
+ case HV_X64_MSR_TSC_FREQUENCY:
+ data = (u64)vcpu->arch.virtual_tsc_khz * 1000;
+ break;
+ case HV_X64_MSR_APIC_FREQUENCY:
+ data = APIC_BUS_FREQUENCY;
+ break;
default:
vcpu_unimpl(vcpu, "Hyper-V unhandled rdmsr: 0x%x\n", msr);
return 1;
@@ -1246,7 +1274,7 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu)
switch (code) {
case HVCALL_NOTIFY_LONG_SPIN_WAIT:
- kvm_vcpu_on_spin(vcpu);
+ kvm_vcpu_on_spin(vcpu, true);
break;
case HVCALL_POST_MESSAGE:
case HVCALL_SIGNAL_EVENT:
diff --git a/arch/x86/kvm/hyperv.h b/arch/x86/kvm/hyperv.h
index cd1119538add..e637631a9574 100644
--- a/arch/x86/kvm/hyperv.h
+++ b/arch/x86/kvm/hyperv.h
@@ -56,9 +56,10 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu);
void kvm_hv_irq_routing_update(struct kvm *kvm);
int kvm_hv_synic_set_irq(struct kvm *kvm, u32 vcpu_id, u32 sint);
void kvm_hv_synic_send_eoi(struct kvm_vcpu *vcpu, int vector);
-int kvm_hv_activate_synic(struct kvm_vcpu *vcpu);
+int kvm_hv_activate_synic(struct kvm_vcpu *vcpu, bool dont_zero_synic_pages);
void kvm_hv_vcpu_init(struct kvm_vcpu *vcpu);
+void kvm_hv_vcpu_postcreate(struct kvm_vcpu *vcpu);
void kvm_hv_vcpu_uninit(struct kvm_vcpu *vcpu);
static inline struct kvm_vcpu_hv_stimer *vcpu_to_stimer(struct kvm_vcpu *vcpu,
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index a78b445ce411..af192895b1fc 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -724,8 +724,10 @@ void kvm_free_pit(struct kvm *kvm)
struct kvm_pit *pit = kvm->arch.vpit;
if (pit) {
+ mutex_lock(&kvm->slots_lock);
kvm_io_bus_unregister_dev(kvm, KVM_PIO_BUS, &pit->dev);
kvm_io_bus_unregister_dev(kvm, KVM_PIO_BUS, &pit->speaker_dev);
+ mutex_unlock(&kvm->slots_lock);
kvm_pit_set_reinject(pit, false);
hrtimer_cancel(&pit->pit_state.timer);
kthread_destroy_worker(pit->worker);
diff --git a/arch/x86/kvm/kvm_cache_regs.h b/arch/x86/kvm/kvm_cache_regs.h
index 762cdf2595f9..9add410f195f 100644
--- a/arch/x86/kvm/kvm_cache_regs.h
+++ b/arch/x86/kvm/kvm_cache_regs.h
@@ -4,7 +4,7 @@
#define KVM_POSSIBLE_CR0_GUEST_BITS X86_CR0_TS
#define KVM_POSSIBLE_CR4_GUEST_BITS \
(X86_CR4_PVI | X86_CR4_DE | X86_CR4_PCE | X86_CR4_OSFXSR \
- | X86_CR4_OSXMMEXCPT | X86_CR4_PGE)
+ | X86_CR4_OSXMMEXCPT | X86_CR4_LA57 | X86_CR4_PGE)
static inline unsigned long kvm_register_read(struct kvm_vcpu *vcpu,
enum kvm_reg reg)
@@ -84,11 +84,6 @@ static inline u64 kvm_read_edx_eax(struct kvm_vcpu *vcpu)
| ((u64)(kvm_register_read(vcpu, VCPU_REGS_RDX) & -1u) << 32);
}
-static inline u32 kvm_read_pkru(struct kvm_vcpu *vcpu)
-{
- return kvm_x86_ops->get_pkru(vcpu);
-}
-
static inline void enter_guest_mode(struct kvm_vcpu *vcpu)
{
vcpu->arch.hflags |= HF_GUEST_MASK;
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index d24c8742d9b0..69c5612be786 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -54,8 +54,6 @@
#define PRIu64 "u"
#define PRIo64 "o"
-#define APIC_BUS_CYCLE_NS 1
-
/* #define apic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg) */
#define apic_debug(fmt, arg...)
@@ -1326,6 +1324,10 @@ static void apic_timer_expired(struct kvm_lapic *apic)
atomic_inc(&apic->lapic_timer.pending);
kvm_set_pending_timer(vcpu);
+ /*
+ * For x86, the atomic_inc() is serialized, thus
+ * using swait_active() is safe.
+ */
if (swait_active(q))
swake_up(q);
@@ -1495,59 +1497,95 @@ EXPORT_SYMBOL_GPL(kvm_lapic_hv_timer_in_use);
static void cancel_hv_timer(struct kvm_lapic *apic)
{
- preempt_disable();
+ WARN_ON(preemptible());
+ WARN_ON(!apic->lapic_timer.hv_timer_in_use);
kvm_x86_ops->cancel_hv_timer(apic->vcpu);
apic->lapic_timer.hv_timer_in_use = false;
- preempt_enable();
}
static bool start_hv_timer(struct kvm_lapic *apic)
{
- u64 tscdeadline = apic->lapic_timer.tscdeadline;
+ struct kvm_timer *ktimer = &apic->lapic_timer;
+ int r;
- if ((atomic_read(&apic->lapic_timer.pending) &&
- !apic_lvtt_period(apic)) ||
- kvm_x86_ops->set_hv_timer(apic->vcpu, tscdeadline)) {
- if (apic->lapic_timer.hv_timer_in_use)
- cancel_hv_timer(apic);
- } else {
- apic->lapic_timer.hv_timer_in_use = true;
- hrtimer_cancel(&apic->lapic_timer.timer);
+ WARN_ON(preemptible());
+ if (!kvm_x86_ops->set_hv_timer)
+ return false;
+
+ if (!apic_lvtt_period(apic) && atomic_read(&ktimer->pending))
+ return false;
+
+ r = kvm_x86_ops->set_hv_timer(apic->vcpu, ktimer->tscdeadline);
+ if (r < 0)
+ return false;
- /* In case the sw timer triggered in the window */
- if (atomic_read(&apic->lapic_timer.pending) &&
- !apic_lvtt_period(apic))
- cancel_hv_timer(apic);
+ ktimer->hv_timer_in_use = true;
+ hrtimer_cancel(&ktimer->timer);
+
+ /*
+ * Also recheck ktimer->pending, in case the sw timer triggered in
+ * the window. For periodic timer, leave the hv timer running for
+ * simplicity, and the deadline will be recomputed on the next vmexit.
+ */
+ if (!apic_lvtt_period(apic) && (r || atomic_read(&ktimer->pending))) {
+ if (r)
+ apic_timer_expired(apic);
+ return false;
}
- trace_kvm_hv_timer_state(apic->vcpu->vcpu_id,
- apic->lapic_timer.hv_timer_in_use);
- return apic->lapic_timer.hv_timer_in_use;
+
+ trace_kvm_hv_timer_state(apic->vcpu->vcpu_id, true);
+ return true;
+}
+
+static void start_sw_timer(struct kvm_lapic *apic)
+{
+ struct kvm_timer *ktimer = &apic->lapic_timer;
+
+ WARN_ON(preemptible());
+ if (apic->lapic_timer.hv_timer_in_use)
+ cancel_hv_timer(apic);
+ if (!apic_lvtt_period(apic) && atomic_read(&ktimer->pending))
+ return;
+
+ if (apic_lvtt_period(apic) || apic_lvtt_oneshot(apic))
+ start_sw_period(apic);
+ else if (apic_lvtt_tscdeadline(apic))
+ start_sw_tscdeadline(apic);
+ trace_kvm_hv_timer_state(apic->vcpu->vcpu_id, false);
+}
+
+static void restart_apic_timer(struct kvm_lapic *apic)
+{
+ preempt_disable();
+ if (!start_hv_timer(apic))
+ start_sw_timer(apic);
+ preempt_enable();
}
void kvm_lapic_expired_hv_timer(struct kvm_vcpu *vcpu)
{
struct kvm_lapic *apic = vcpu->arch.apic;
- WARN_ON(!apic->lapic_timer.hv_timer_in_use);
+ preempt_disable();
+ /* If the preempt notifier has already run, it also called apic_timer_expired */
+ if (!apic->lapic_timer.hv_timer_in_use)
+ goto out;
WARN_ON(swait_active(&vcpu->wq));
cancel_hv_timer(apic);
apic_timer_expired(apic);
if (apic_lvtt_period(apic) && apic->lapic_timer.period) {
advance_periodic_target_expiration(apic);
- if (!start_hv_timer(apic))
- start_sw_period(apic);
+ restart_apic_timer(apic);
}
+out:
+ preempt_enable();
}
EXPORT_SYMBOL_GPL(kvm_lapic_expired_hv_timer);
void kvm_lapic_switch_to_hv_timer(struct kvm_vcpu *vcpu)
{
- struct kvm_lapic *apic = vcpu->arch.apic;
-
- WARN_ON(apic->lapic_timer.hv_timer_in_use);
-
- start_hv_timer(apic);
+ restart_apic_timer(vcpu->arch.apic);
}
EXPORT_SYMBOL_GPL(kvm_lapic_switch_to_hv_timer);
@@ -1555,34 +1593,31 @@ void kvm_lapic_switch_to_sw_timer(struct kvm_vcpu *vcpu)
{
struct kvm_lapic *apic = vcpu->arch.apic;
+ preempt_disable();
/* Possibly the TSC deadline timer is not enabled yet */
- if (!apic->lapic_timer.hv_timer_in_use)
- return;
-
- cancel_hv_timer(apic);
+ if (apic->lapic_timer.hv_timer_in_use)
+ start_sw_timer(apic);
+ preempt_enable();
+}
+EXPORT_SYMBOL_GPL(kvm_lapic_switch_to_sw_timer);
- if (atomic_read(&apic->lapic_timer.pending))
- return;
+void kvm_lapic_restart_hv_timer(struct kvm_vcpu *vcpu)
+{
+ struct kvm_lapic *apic = vcpu->arch.apic;
- if (apic_lvtt_period(apic) || apic_lvtt_oneshot(apic))
- start_sw_period(apic);
- else if (apic_lvtt_tscdeadline(apic))
- start_sw_tscdeadline(apic);
+ WARN_ON(!apic->lapic_timer.hv_timer_in_use);
+ restart_apic_timer(apic);
}
-EXPORT_SYMBOL_GPL(kvm_lapic_switch_to_sw_timer);
static void start_apic_timer(struct kvm_lapic *apic)
{
atomic_set(&apic->lapic_timer.pending, 0);
- if (apic_lvtt_period(apic) || apic_lvtt_oneshot(apic)) {
- if (set_target_expiration(apic) &&
- !(kvm_x86_ops->set_hv_timer && start_hv_timer(apic)))
- start_sw_period(apic);
- } else if (apic_lvtt_tscdeadline(apic)) {
- if (!(kvm_x86_ops->set_hv_timer && start_hv_timer(apic)))
- start_sw_tscdeadline(apic);
- }
+ if ((apic_lvtt_period(apic) || apic_lvtt_oneshot(apic))
+ && !set_target_expiration(apic))
+ return;
+
+ restart_apic_timer(apic);
}
static void apic_manage_nmi_watchdog(struct kvm_lapic *apic, u32 lvt0_val)
@@ -1813,16 +1848,6 @@ void kvm_free_lapic(struct kvm_vcpu *vcpu)
* LAPIC interface
*----------------------------------------------------------------------
*/
-u64 kvm_get_lapic_target_expiration_tsc(struct kvm_vcpu *vcpu)
-{
- struct kvm_lapic *apic = vcpu->arch.apic;
-
- if (!lapic_in_kernel(vcpu))
- return 0;
-
- return apic->lapic_timer.tscdeadline;
-}
-
u64 kvm_get_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu)
{
struct kvm_lapic *apic = vcpu->arch.apic;
diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
index bcbe811f3b97..215721e1426a 100644
--- a/arch/x86/kvm/lapic.h
+++ b/arch/x86/kvm/lapic.h
@@ -12,6 +12,9 @@
#define KVM_APIC_SHORT_MASK 0xc0000
#define KVM_APIC_DEST_MASK 0x800
+#define APIC_BUS_CYCLE_NS 1
+#define APIC_BUS_FREQUENCY (1000000000ULL / APIC_BUS_CYCLE_NS)
+
struct kvm_timer {
struct hrtimer timer;
s64 period; /* unit: ns */
@@ -87,7 +90,6 @@ int kvm_apic_get_state(struct kvm_vcpu *vcpu, struct kvm_lapic_state *s);
int kvm_apic_set_state(struct kvm_vcpu *vcpu, struct kvm_lapic_state *s);
int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu);
-u64 kvm_get_lapic_target_expiration_tsc(struct kvm_vcpu *vcpu);
u64 kvm_get_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu);
void kvm_set_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu, u64 data);
@@ -216,4 +218,5 @@ void kvm_lapic_switch_to_sw_timer(struct kvm_vcpu *vcpu);
void kvm_lapic_switch_to_hv_timer(struct kvm_vcpu *vcpu);
void kvm_lapic_expired_hv_timer(struct kvm_vcpu *vcpu);
bool kvm_lapic_hv_timer_in_use(struct kvm_vcpu *vcpu);
+void kvm_lapic_restart_hv_timer(struct kvm_vcpu *vcpu);
#endif
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index cb8225969255..7a69cf053711 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -46,6 +46,7 @@
#include <asm/io.h>
#include <asm/vmx.h>
#include <asm/kvm_page_track.h>
+#include "trace.h"
/*
* When setting this variable to true it enables Two-Dimensional-Paging
@@ -107,7 +108,7 @@ module_param(dbg, bool, 0644);
(((address) >> PT32_LEVEL_SHIFT(level)) & ((1 << PT32_LEVEL_BITS) - 1))
-#define PT64_BASE_ADDR_MASK (((1ULL << 52) - 1) & ~(u64)(PAGE_SIZE-1))
+#define PT64_BASE_ADDR_MASK __sme_clr((((1ULL << 52) - 1) & ~(u64)(PAGE_SIZE-1)))
#define PT64_DIR_BASE_ADDR_MASK \
(PT64_BASE_ADDR_MASK & ~((1ULL << (PAGE_SHIFT + PT64_LEVEL_BITS)) - 1))
#define PT64_LVL_ADDR_MASK(level) \
@@ -125,7 +126,7 @@ module_param(dbg, bool, 0644);
* PT32_LEVEL_BITS))) - 1))
#define PT64_PERM_MASK (PT_PRESENT_MASK | PT_WRITABLE_MASK | shadow_user_mask \
- | shadow_x_mask | shadow_nx_mask)
+ | shadow_x_mask | shadow_nx_mask | shadow_me_mask)
#define ACC_EXEC_MASK 1
#define ACC_WRITE_MASK PT_WRITABLE_MASK
@@ -183,13 +184,14 @@ static u64 __read_mostly shadow_user_mask;
static u64 __read_mostly shadow_accessed_mask;
static u64 __read_mostly shadow_dirty_mask;
static u64 __read_mostly shadow_mmio_mask;
+static u64 __read_mostly shadow_mmio_value;
static u64 __read_mostly shadow_present_mask;
+static u64 __read_mostly shadow_me_mask;
/*
- * The mask/value to distinguish a PTE that has been marked not-present for
- * access tracking purposes.
- * The mask would be either 0 if access tracking is disabled, or
- * SPTE_SPECIAL_MASK|VMX_EPT_RWX_MASK if access tracking is enabled.
+ * SPTEs used by MMUs without A/D bits are marked with shadow_acc_track_value.
+ * Non-present SPTEs with shadow_acc_track_value set are in place for access
+ * tracking.
*/
static u64 __read_mostly shadow_acc_track_mask;
static const u64 shadow_acc_track_value = SPTE_SPECIAL_MASK;
@@ -207,16 +209,40 @@ static const u64 shadow_acc_track_saved_bits_shift = PT64_SECOND_AVAIL_BITS_SHIF
static void mmu_spte_set(u64 *sptep, u64 spte);
static void mmu_free_roots(struct kvm_vcpu *vcpu);
-void kvm_mmu_set_mmio_spte_mask(u64 mmio_mask)
+void kvm_mmu_set_mmio_spte_mask(u64 mmio_mask, u64 mmio_value)
{
+ BUG_ON((mmio_mask & mmio_value) != mmio_value);
+ shadow_mmio_value = mmio_value | SPTE_SPECIAL_MASK;
shadow_mmio_mask = mmio_mask | SPTE_SPECIAL_MASK;
}
EXPORT_SYMBOL_GPL(kvm_mmu_set_mmio_spte_mask);
+static inline bool sp_ad_disabled(struct kvm_mmu_page *sp)
+{
+ return sp->role.ad_disabled;
+}
+
+static inline bool spte_ad_enabled(u64 spte)
+{
+ MMU_WARN_ON((spte & shadow_mmio_mask) == shadow_mmio_value);
+ return !(spte & shadow_acc_track_value);
+}
+
+static inline u64 spte_shadow_accessed_mask(u64 spte)
+{
+ MMU_WARN_ON((spte & shadow_mmio_mask) == shadow_mmio_value);
+ return spte_ad_enabled(spte) ? shadow_accessed_mask : 0;
+}
+
+static inline u64 spte_shadow_dirty_mask(u64 spte)
+{
+ MMU_WARN_ON((spte & shadow_mmio_mask) == shadow_mmio_value);
+ return spte_ad_enabled(spte) ? shadow_dirty_mask : 0;
+}
+
static inline bool is_access_track_spte(u64 spte)
{
- /* Always false if shadow_acc_track_mask is zero. */
- return (spte & shadow_acc_track_mask) == shadow_acc_track_value;
+ return !spte_ad_enabled(spte) && (spte & shadow_acc_track_mask) == 0;
}
/*
@@ -270,7 +296,7 @@ static void mark_mmio_spte(struct kvm_vcpu *vcpu, u64 *sptep, u64 gfn,
u64 mask = generation_mmio_spte_mask(gen);
access &= ACC_WRITE_MASK | ACC_USER_MASK;
- mask |= shadow_mmio_mask | access | gfn << PAGE_SHIFT;
+ mask |= shadow_mmio_value | access | gfn << PAGE_SHIFT;
trace_mark_mmio_spte(sptep, gfn, access, gen);
mmu_spte_set(sptep, mask);
@@ -278,7 +304,7 @@ static void mark_mmio_spte(struct kvm_vcpu *vcpu, u64 *sptep, u64 gfn,
static bool is_mmio_spte(u64 spte)
{
- return (spte & shadow_mmio_mask) == shadow_mmio_mask;
+ return (spte & shadow_mmio_mask) == shadow_mmio_value;
}
static gfn_t get_mmio_spte_gfn(u64 spte)
@@ -315,12 +341,20 @@ static bool check_mmio_spte(struct kvm_vcpu *vcpu, u64 spte)
return likely(kvm_gen == spte_gen);
}
+/*
+ * Sets the shadow PTE masks used by the MMU.
+ *
+ * Assumptions:
+ * - Setting either @accessed_mask or @dirty_mask requires setting both
+ * - At least one of @accessed_mask or @acc_track_mask must be set
+ */
void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask,
u64 dirty_mask, u64 nx_mask, u64 x_mask, u64 p_mask,
- u64 acc_track_mask)
+ u64 acc_track_mask, u64 me_mask)
{
- if (acc_track_mask != 0)
- acc_track_mask |= SPTE_SPECIAL_MASK;
+ BUG_ON(!dirty_mask != !accessed_mask);
+ BUG_ON(!accessed_mask && !acc_track_mask);
+ BUG_ON(acc_track_mask & shadow_acc_track_value);
shadow_user_mask = user_mask;
shadow_accessed_mask = accessed_mask;
@@ -329,7 +363,7 @@ void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask,
shadow_x_mask = x_mask;
shadow_present_mask = p_mask;
shadow_acc_track_mask = acc_track_mask;
- WARN_ON(shadow_accessed_mask != 0 && shadow_acc_track_mask != 0);
+ shadow_me_mask = me_mask;
}
EXPORT_SYMBOL_GPL(kvm_mmu_set_mask_ptes);
@@ -549,7 +583,7 @@ static bool spte_has_volatile_bits(u64 spte)
is_access_track_spte(spte))
return true;
- if (shadow_accessed_mask) {
+ if (spte_ad_enabled(spte)) {
if ((spte & shadow_accessed_mask) == 0 ||
(is_writable_pte(spte) && (spte & shadow_dirty_mask) == 0))
return true;
@@ -560,14 +594,17 @@ static bool spte_has_volatile_bits(u64 spte)
static bool is_accessed_spte(u64 spte)
{
- return shadow_accessed_mask ? spte & shadow_accessed_mask
- : !is_access_track_spte(spte);
+ u64 accessed_mask = spte_shadow_accessed_mask(spte);
+
+ return accessed_mask ? spte & accessed_mask
+ : !is_access_track_spte(spte);
}
static bool is_dirty_spte(u64 spte)
{
- return shadow_dirty_mask ? spte & shadow_dirty_mask
- : spte & PT_WRITABLE_MASK;
+ u64 dirty_mask = spte_shadow_dirty_mask(spte);
+
+ return dirty_mask ? spte & dirty_mask : spte & PT_WRITABLE_MASK;
}
/* Rules for using mmu_spte_set:
@@ -707,10 +744,10 @@ static u64 mmu_spte_get_lockless(u64 *sptep)
static u64 mark_spte_for_access_track(u64 spte)
{
- if (shadow_accessed_mask != 0)
+ if (spte_ad_enabled(spte))
return spte & ~shadow_accessed_mask;
- if (shadow_acc_track_mask == 0 || is_access_track_spte(spte))
+ if (is_access_track_spte(spte))
return spte;
/*
@@ -729,7 +766,6 @@ static u64 mark_spte_for_access_track(u64 spte)
spte |= (spte & shadow_acc_track_saved_bits_mask) <<
shadow_acc_track_saved_bits_shift;
spte &= ~shadow_acc_track_mask;
- spte |= shadow_acc_track_value;
return spte;
}
@@ -741,6 +777,7 @@ static u64 restore_acc_track_spte(u64 spte)
u64 saved_bits = (spte >> shadow_acc_track_saved_bits_shift)
& shadow_acc_track_saved_bits_mask;
+ WARN_ON_ONCE(spte_ad_enabled(spte));
WARN_ON_ONCE(!is_access_track_spte(spte));
new_spte &= ~shadow_acc_track_mask;
@@ -759,7 +796,7 @@ static bool mmu_spte_age(u64 *sptep)
if (!is_accessed_spte(spte))
return false;
- if (shadow_accessed_mask) {
+ if (spte_ad_enabled(spte)) {
clear_bit((ffs(shadow_accessed_mask) - 1),
(unsigned long *)sptep);
} else {
@@ -1390,6 +1427,22 @@ static bool spte_clear_dirty(u64 *sptep)
return mmu_spte_update(sptep, spte);
}
+static bool wrprot_ad_disabled_spte(u64 *sptep)
+{
+ bool was_writable = test_and_clear_bit(PT_WRITABLE_SHIFT,
+ (unsigned long *)sptep);
+ if (was_writable)
+ kvm_set_pfn_dirty(spte_to_pfn(*sptep));
+
+ return was_writable;
+}
+
+/*
+ * Gets the GFN ready for another round of dirty logging by clearing the
+ * - D bit on ad-enabled SPTEs, and
+ * - W bit on ad-disabled SPTEs.
+ * Returns true iff any D or W bits were cleared.
+ */
static bool __rmap_clear_dirty(struct kvm *kvm, struct kvm_rmap_head *rmap_head)
{
u64 *sptep;
@@ -1397,7 +1450,10 @@ static bool __rmap_clear_dirty(struct kvm *kvm, struct kvm_rmap_head *rmap_head)
bool flush = false;
for_each_rmap_spte(rmap_head, &iter, sptep)
- flush |= spte_clear_dirty(sptep);
+ if (spte_ad_enabled(*sptep))
+ flush |= spte_clear_dirty(sptep);
+ else
+ flush |= wrprot_ad_disabled_spte(sptep);
return flush;
}
@@ -1420,7 +1476,8 @@ static bool __rmap_set_dirty(struct kvm *kvm, struct kvm_rmap_head *rmap_head)
bool flush = false;
for_each_rmap_spte(rmap_head, &iter, sptep)
- flush |= spte_set_dirty(sptep);
+ if (spte_ad_enabled(*sptep))
+ flush |= spte_set_dirty(sptep);
return flush;
}
@@ -1452,7 +1509,8 @@ static void kvm_mmu_write_protect_pt_masked(struct kvm *kvm,
}
/**
- * kvm_mmu_clear_dirty_pt_masked - clear MMU D-bit for PT level pages
+ * kvm_mmu_clear_dirty_pt_masked - clear MMU D-bit for PT level pages, or write
+ * protect the page if the D-bit isn't supported.
* @kvm: kvm instance
* @slot: slot to clear D-bit
* @gfn_offset: start of the BITS_PER_LONG pages we care about
@@ -1766,18 +1824,9 @@ static int kvm_test_age_rmapp(struct kvm *kvm, struct kvm_rmap_head *rmap_head,
u64 *sptep;
struct rmap_iterator iter;
- /*
- * If there's no access bit in the secondary pte set by the hardware and
- * fast access tracking is also not enabled, it's up to gup-fast/gup to
- * set the access bit in the primary pte or in the page structure.
- */
- if (!shadow_accessed_mask && !shadow_acc_track_mask)
- goto out;
-
for_each_rmap_spte(rmap_head, &iter, sptep)
if (is_accessed_spte(*sptep))
return 1;
-out:
return 0;
}
@@ -1798,18 +1847,6 @@ static void rmap_recycle(struct kvm_vcpu *vcpu, u64 *spte, gfn_t gfn)
int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end)
{
- /*
- * In case of absence of EPT Access and Dirty Bits supports,
- * emulate the accessed bit for EPT, by checking if this page has
- * an EPT mapping, and clearing it if it does. On the next access,
- * a new EPT mapping will be established.
- * This has some overhead, but not as much as the cost of swapping
- * out actively used pages or breaking up actively used hugepages.
- */
- if (!shadow_accessed_mask && !shadow_acc_track_mask)
- return kvm_handle_hva_range(kvm, start, end, 0,
- kvm_unmap_rmapp);
-
return kvm_handle_hva_range(kvm, start, end, 0, kvm_age_rmapp);
}
@@ -2132,8 +2169,8 @@ static bool kvm_sync_pages(struct kvm_vcpu *vcpu, gfn_t gfn,
}
struct mmu_page_path {
- struct kvm_mmu_page *parent[PT64_ROOT_LEVEL];
- unsigned int idx[PT64_ROOT_LEVEL];
+ struct kvm_mmu_page *parent[PT64_ROOT_MAX_LEVEL];
+ unsigned int idx[PT64_ROOT_MAX_LEVEL];
};
#define for_each_sp(pvec, sp, parents, i) \
@@ -2348,8 +2385,8 @@ static void shadow_walk_init(struct kvm_shadow_walk_iterator *iterator,
iterator->shadow_addr = vcpu->arch.mmu.root_hpa;
iterator->level = vcpu->arch.mmu.shadow_root_level;
- if (iterator->level == PT64_ROOT_LEVEL &&
- vcpu->arch.mmu.root_level < PT64_ROOT_LEVEL &&
+ if (iterator->level == PT64_ROOT_4LEVEL &&
+ vcpu->arch.mmu.root_level < PT64_ROOT_4LEVEL &&
!vcpu->arch.mmu.direct_map)
--iterator->level;
@@ -2398,7 +2435,12 @@ static void link_shadow_page(struct kvm_vcpu *vcpu, u64 *sptep,
BUILD_BUG_ON(VMX_EPT_WRITABLE_MASK != PT_WRITABLE_MASK);
spte = __pa(sp->spt) | shadow_present_mask | PT_WRITABLE_MASK |
- shadow_user_mask | shadow_x_mask | shadow_accessed_mask;
+ shadow_user_mask | shadow_x_mask | shadow_me_mask;
+
+ if (sp_ad_disabled(sp))
+ spte |= shadow_acc_track_value;
+ else
+ spte |= shadow_accessed_mask;
mmu_spte_set(sptep, spte);
@@ -2568,9 +2610,7 @@ static bool prepare_zap_oldest_mmu_page(struct kvm *kvm,
sp = list_last_entry(&kvm->arch.active_mmu_pages,
struct kvm_mmu_page, link);
- kvm_mmu_prepare_zap_page(kvm, sp, invalid_list);
-
- return true;
+ return kvm_mmu_prepare_zap_page(kvm, sp, invalid_list);
}
/*
@@ -2666,10 +2706,15 @@ static int set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
{
u64 spte = 0;
int ret = 0;
+ struct kvm_mmu_page *sp;
if (set_mmio_spte(vcpu, sptep, gfn, pfn, pte_access))
return 0;
+ sp = page_header(__pa(sptep));
+ if (sp_ad_disabled(sp))
+ spte |= shadow_acc_track_value;
+
/*
* For the EPT case, shadow_present_mask is 0 if hardware
* supports exec-only page table entries. In that case,
@@ -2678,7 +2723,7 @@ static int set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
*/
spte |= shadow_present_mask;
if (!speculative)
- spte |= shadow_accessed_mask;
+ spte |= spte_shadow_accessed_mask(spte);
if (pte_access & ACC_EXEC_MASK)
spte |= shadow_x_mask;
@@ -2700,6 +2745,7 @@ static int set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
pte_access &= ~ACC_WRITE_MASK;
spte |= (u64)pfn << PAGE_SHIFT;
+ spte |= shadow_me_mask;
if (pte_access & ACC_WRITE_MASK) {
@@ -2735,7 +2781,7 @@ static int set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
if (pte_access & ACC_WRITE_MASK) {
kvm_vcpu_mark_page_dirty(vcpu, gfn);
- spte |= shadow_dirty_mask;
+ spte |= spte_shadow_dirty_mask(spte);
}
if (speculative)
@@ -2877,16 +2923,16 @@ static void direct_pte_prefetch(struct kvm_vcpu *vcpu, u64 *sptep)
{
struct kvm_mmu_page *sp;
+ sp = page_header(__pa(sptep));
+
/*
- * Since it's no accessed bit on EPT, it's no way to
- * distinguish between actually accessed translations
- * and prefetched, so disable pte prefetch if EPT is
- * enabled.
+ * Without accessed bits, there's no way to distinguish between
+ * actually accessed translations and prefetched, so disable pte
+ * prefetch if accessed bits aren't available.
*/
- if (!shadow_accessed_mask)
+ if (sp_ad_disabled(sp))
return;
- sp = page_header(__pa(sptep));
if (sp->role.level > PT_PAGE_TABLE_LEVEL)
return;
@@ -3214,7 +3260,7 @@ static bool fast_page_fault(struct kvm_vcpu *vcpu, gva_t gva, int level,
static bool try_async_pf(struct kvm_vcpu *vcpu, bool prefault, gfn_t gfn,
gva_t gva, kvm_pfn_t *pfn, bool write, bool *writable);
-static void make_mmu_pages_available(struct kvm_vcpu *vcpu);
+static int make_mmu_pages_available(struct kvm_vcpu *vcpu);
static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, u32 error_code,
gfn_t gfn, bool prefault)
@@ -3254,7 +3300,8 @@ static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, u32 error_code,
spin_lock(&vcpu->kvm->mmu_lock);
if (mmu_notifier_retry(vcpu->kvm, mmu_seq))
goto out_unlock;
- make_mmu_pages_available(vcpu);
+ if (make_mmu_pages_available(vcpu) < 0)
+ goto out_unlock;
if (likely(!force_pt_level))
transparent_hugepage_adjust(vcpu, &gfn, &pfn, &level);
r = __direct_map(vcpu, write, map_writable, level, gfn, pfn, prefault);
@@ -3278,8 +3325,8 @@ static void mmu_free_roots(struct kvm_vcpu *vcpu)
if (!VALID_PAGE(vcpu->arch.mmu.root_hpa))
return;
- if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_LEVEL &&
- (vcpu->arch.mmu.root_level == PT64_ROOT_LEVEL ||
+ if (vcpu->arch.mmu.shadow_root_level >= PT64_ROOT_4LEVEL &&
+ (vcpu->arch.mmu.root_level >= PT64_ROOT_4LEVEL ||
vcpu->arch.mmu.direct_map)) {
hpa_t root = vcpu->arch.mmu.root_hpa;
@@ -3331,10 +3378,14 @@ static int mmu_alloc_direct_roots(struct kvm_vcpu *vcpu)
struct kvm_mmu_page *sp;
unsigned i;
- if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_LEVEL) {
+ if (vcpu->arch.mmu.shadow_root_level >= PT64_ROOT_4LEVEL) {
spin_lock(&vcpu->kvm->mmu_lock);
- make_mmu_pages_available(vcpu);
- sp = kvm_mmu_get_page(vcpu, 0, 0, PT64_ROOT_LEVEL, 1, ACC_ALL);
+ if(make_mmu_pages_available(vcpu) < 0) {
+ spin_unlock(&vcpu->kvm->mmu_lock);
+ return 1;
+ }
+ sp = kvm_mmu_get_page(vcpu, 0, 0,
+ vcpu->arch.mmu.shadow_root_level, 1, ACC_ALL);
++sp->root_count;
spin_unlock(&vcpu->kvm->mmu_lock);
vcpu->arch.mmu.root_hpa = __pa(sp->spt);
@@ -3344,7 +3395,10 @@ static int mmu_alloc_direct_roots(struct kvm_vcpu *vcpu)
MMU_WARN_ON(VALID_PAGE(root));
spin_lock(&vcpu->kvm->mmu_lock);
- make_mmu_pages_available(vcpu);
+ if (make_mmu_pages_available(vcpu) < 0) {
+ spin_unlock(&vcpu->kvm->mmu_lock);
+ return 1;
+ }
sp = kvm_mmu_get_page(vcpu, i << (30 - PAGE_SHIFT),
i << 30, PT32_ROOT_LEVEL, 1, ACC_ALL);
root = __pa(sp->spt);
@@ -3375,15 +3429,18 @@ static int mmu_alloc_shadow_roots(struct kvm_vcpu *vcpu)
* Do we shadow a long mode page table? If so we need to
* write-protect the guests page table root.
*/
- if (vcpu->arch.mmu.root_level == PT64_ROOT_LEVEL) {
+ if (vcpu->arch.mmu.root_level >= PT64_ROOT_4LEVEL) {
hpa_t root = vcpu->arch.mmu.root_hpa;
MMU_WARN_ON(VALID_PAGE(root));
spin_lock(&vcpu->kvm->mmu_lock);
- make_mmu_pages_available(vcpu);
- sp = kvm_mmu_get_page(vcpu, root_gfn, 0, PT64_ROOT_LEVEL,
- 0, ACC_ALL);
+ if (make_mmu_pages_available(vcpu) < 0) {
+ spin_unlock(&vcpu->kvm->mmu_lock);
+ return 1;
+ }
+ sp = kvm_mmu_get_page(vcpu, root_gfn, 0,
+ vcpu->arch.mmu.shadow_root_level, 0, ACC_ALL);
root = __pa(sp->spt);
++sp->root_count;
spin_unlock(&vcpu->kvm->mmu_lock);
@@ -3397,7 +3454,7 @@ static int mmu_alloc_shadow_roots(struct kvm_vcpu *vcpu)
* the shadow page table may be a PAE or a long mode page table.
*/
pm_mask = PT_PRESENT_MASK;
- if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_LEVEL)
+ if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_4LEVEL)
pm_mask |= PT_ACCESSED_MASK | PT_WRITABLE_MASK | PT_USER_MASK;
for (i = 0; i < 4; ++i) {
@@ -3415,7 +3472,10 @@ static int mmu_alloc_shadow_roots(struct kvm_vcpu *vcpu)
return 1;
}
spin_lock(&vcpu->kvm->mmu_lock);
- make_mmu_pages_available(vcpu);
+ if (make_mmu_pages_available(vcpu) < 0) {
+ spin_unlock(&vcpu->kvm->mmu_lock);
+ return 1;
+ }
sp = kvm_mmu_get_page(vcpu, root_gfn, i << 30, PT32_ROOT_LEVEL,
0, ACC_ALL);
root = __pa(sp->spt);
@@ -3430,7 +3490,7 @@ static int mmu_alloc_shadow_roots(struct kvm_vcpu *vcpu)
* If we shadow a 32 bit page table with a long mode page
* table we enter this path.
*/
- if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_LEVEL) {
+ if (vcpu->arch.mmu.shadow_root_level == PT64_ROOT_4LEVEL) {
if (vcpu->arch.mmu.lm_root == NULL) {
/*
* The additional page necessary for this is only
@@ -3475,7 +3535,7 @@ static void mmu_sync_roots(struct kvm_vcpu *vcpu)
vcpu_clear_mmio_info(vcpu, MMIO_GVA_ANY);
kvm_mmu_audit(vcpu, AUDIT_PRE_SYNC);
- if (vcpu->arch.mmu.root_level == PT64_ROOT_LEVEL) {
+ if (vcpu->arch.mmu.root_level >= PT64_ROOT_4LEVEL) {
hpa_t root = vcpu->arch.mmu.root_hpa;
sp = page_header(root);
mmu_sync_children(vcpu, sp);
@@ -3540,6 +3600,13 @@ static bool is_shadow_zero_bits_set(struct kvm_mmu *mmu, u64 spte, int level)
static bool mmio_info_in_cache(struct kvm_vcpu *vcpu, u64 addr, bool direct)
{
+ /*
+ * A nested guest cannot use the MMIO cache if it is using nested
+ * page tables, because cr2 is a nGPA while the cache stores GPAs.
+ */
+ if (mmu_is_nested(vcpu))
+ return false;
+
if (direct)
return vcpu_match_mmio_gpa(vcpu, addr);
@@ -3551,7 +3618,7 @@ static bool
walk_shadow_page_get_mmio_spte(struct kvm_vcpu *vcpu, u64 addr, u64 *sptep)
{
struct kvm_shadow_walk_iterator iterator;
- u64 sptes[PT64_ROOT_LEVEL], spte = 0ull;
+ u64 sptes[PT64_ROOT_MAX_LEVEL], spte = 0ull;
int root, leaf;
bool reserved = false;
@@ -3592,7 +3659,23 @@ exit:
return reserved;
}
-int handle_mmio_page_fault(struct kvm_vcpu *vcpu, u64 addr, bool direct)
+/*
+ * Return values of handle_mmio_page_fault:
+ * RET_MMIO_PF_EMULATE: it is a real mmio page fault, emulate the instruction
+ * directly.
+ * RET_MMIO_PF_INVALID: invalid spte is detected then let the real page
+ * fault path update the mmio spte.
+ * RET_MMIO_PF_RETRY: let CPU fault again on the address.
+ * RET_MMIO_PF_BUG: a bug was detected (and a WARN was printed).
+ */
+enum {
+ RET_MMIO_PF_EMULATE = 1,
+ RET_MMIO_PF_INVALID = 2,
+ RET_MMIO_PF_RETRY = 0,
+ RET_MMIO_PF_BUG = -1
+};
+
+static int handle_mmio_page_fault(struct kvm_vcpu *vcpu, u64 addr, bool direct)
{
u64 spte;
bool reserved;
@@ -3704,7 +3787,7 @@ bool kvm_can_do_async_pf(struct kvm_vcpu *vcpu)
kvm_event_needs_reinjection(vcpu)))
return false;
- if (is_guest_mode(vcpu))
+ if (!vcpu->arch.apf.delivery_as_pf_vmexit && is_guest_mode(vcpu))
return false;
return kvm_x86_ops->interrupt_allowed(vcpu);
@@ -3736,6 +3819,38 @@ static bool try_async_pf(struct kvm_vcpu *vcpu, bool prefault, gfn_t gfn,
return false;
}
+int kvm_handle_page_fault(struct kvm_vcpu *vcpu, u64 error_code,
+ u64 fault_address, char *insn, int insn_len,
+ bool need_unprotect)
+{
+ int r = 1;
+
+ switch (vcpu->arch.apf.host_apf_reason) {
+ default:
+ trace_kvm_page_fault(fault_address, error_code);
+
+ if (need_unprotect && kvm_event_needs_reinjection(vcpu))
+ kvm_mmu_unprotect_page_virt(vcpu, fault_address);
+ r = kvm_mmu_page_fault(vcpu, fault_address, error_code, insn,
+ insn_len);
+ break;
+ case KVM_PV_REASON_PAGE_NOT_PRESENT:
+ vcpu->arch.apf.host_apf_reason = 0;
+ local_irq_disable();
+ kvm_async_pf_task_wait(fault_address, 0);
+ local_irq_enable();
+ break;
+ case KVM_PV_REASON_PAGE_READY:
+ vcpu->arch.apf.host_apf_reason = 0;
+ local_irq_disable();
+ kvm_async_pf_task_wake(fault_address);
+ local_irq_enable();
+ break;
+ }
+ return r;
+}
+EXPORT_SYMBOL_GPL(kvm_handle_page_fault);
+
static bool
check_hugepage_cache_consistency(struct kvm_vcpu *vcpu, gfn_t gfn, int level)
{
@@ -3792,7 +3907,8 @@ static int tdp_page_fault(struct kvm_vcpu *vcpu, gva_t gpa, u32 error_code,
spin_lock(&vcpu->kvm->mmu_lock);
if (mmu_notifier_retry(vcpu->kvm, mmu_seq))
goto out_unlock;
- make_mmu_pages_available(vcpu);
+ if (make_mmu_pages_available(vcpu) < 0)
+ goto out_unlock;
if (likely(!force_pt_level))
transparent_hugepage_adjust(vcpu, &gfn, &pfn, &level);
r = __direct_map(vcpu, write, map_writable, level, gfn, pfn, prefault);
@@ -3858,19 +3974,19 @@ static inline bool is_last_gpte(struct kvm_mmu *mmu,
unsigned level, unsigned gpte)
{
/*
- * PT_PAGE_TABLE_LEVEL always terminates. The RHS has bit 7 set
- * iff level <= PT_PAGE_TABLE_LEVEL, which for our purpose means
- * level == PT_PAGE_TABLE_LEVEL; set PT_PAGE_SIZE_MASK in gpte then.
- */
- gpte |= level - PT_PAGE_TABLE_LEVEL - 1;
-
- /*
* The RHS has bit 7 set iff level < mmu->last_nonleaf_level.
* If it is clear, there are no large pages at this level, so clear
* PT_PAGE_SIZE_MASK in gpte if that is the case.
*/
gpte &= level - mmu->last_nonleaf_level;
+ /*
+ * PT_PAGE_TABLE_LEVEL always terminates. The RHS has bit 7 set
+ * iff level <= PT_PAGE_TABLE_LEVEL, which for our purpose means
+ * level == PT_PAGE_TABLE_LEVEL; set PT_PAGE_SIZE_MASK in gpte then.
+ */
+ gpte |= level - PT_PAGE_TABLE_LEVEL - 1;
+
return gpte & PT_PAGE_SIZE_MASK;
}
@@ -3945,7 +4061,13 @@ __reset_rsvds_bits_mask(struct kvm_vcpu *vcpu,
rsvd_check->rsvd_bits_mask[1][0] =
rsvd_check->rsvd_bits_mask[0][0];
break;
- case PT64_ROOT_LEVEL:
+ case PT64_ROOT_5LEVEL:
+ rsvd_check->rsvd_bits_mask[0][4] = exb_bit_rsvd |
+ nonleaf_bit8_rsvd | rsvd_bits(7, 7) |
+ rsvd_bits(maxphyaddr, 51);
+ rsvd_check->rsvd_bits_mask[1][4] =
+ rsvd_check->rsvd_bits_mask[0][4];
+ case PT64_ROOT_4LEVEL:
rsvd_check->rsvd_bits_mask[0][3] = exb_bit_rsvd |
nonleaf_bit8_rsvd | rsvd_bits(7, 7) |
rsvd_bits(maxphyaddr, 51);
@@ -3975,7 +4097,8 @@ static void reset_rsvds_bits_mask(struct kvm_vcpu *vcpu,
{
__reset_rsvds_bits_mask(vcpu, &context->guest_rsvd_check,
cpuid_maxphyaddr(vcpu), context->root_level,
- context->nx, guest_cpuid_has_gbpages(vcpu),
+ context->nx,
+ guest_cpuid_has(vcpu, X86_FEATURE_GBPAGES),
is_pse(vcpu), guest_cpuid_is_amd(vcpu));
}
@@ -3985,6 +4108,8 @@ __reset_rsvds_bits_mask_ept(struct rsvd_bits_validate *rsvd_check,
{
u64 bad_mt_xwr;
+ rsvd_check->rsvd_bits_mask[0][4] =
+ rsvd_bits(maxphyaddr, 51) | rsvd_bits(3, 7);
rsvd_check->rsvd_bits_mask[0][3] =
rsvd_bits(maxphyaddr, 51) | rsvd_bits(3, 7);
rsvd_check->rsvd_bits_mask[0][2] =
@@ -3994,6 +4119,7 @@ __reset_rsvds_bits_mask_ept(struct rsvd_bits_validate *rsvd_check,
rsvd_check->rsvd_bits_mask[0][0] = rsvd_bits(maxphyaddr, 51);
/* large page */
+ rsvd_check->rsvd_bits_mask[1][4] = rsvd_check->rsvd_bits_mask[0][4];
rsvd_check->rsvd_bits_mask[1][3] = rsvd_check->rsvd_bits_mask[0][3];
rsvd_check->rsvd_bits_mask[1][2] =
rsvd_bits(maxphyaddr, 51) | rsvd_bits(12, 29);
@@ -4029,16 +4155,28 @@ void
reset_shadow_zero_bits_mask(struct kvm_vcpu *vcpu, struct kvm_mmu *context)
{
bool uses_nx = context->nx || context->base_role.smep_andnot_wp;
+ struct rsvd_bits_validate *shadow_zero_check;
+ int i;
/*
* Passing "true" to the last argument is okay; it adds a check
* on bit 8 of the SPTEs which KVM doesn't use anyway.
*/
- __reset_rsvds_bits_mask(vcpu, &context->shadow_zero_check,
+ shadow_zero_check = &context->shadow_zero_check;
+ __reset_rsvds_bits_mask(vcpu, shadow_zero_check,
boot_cpu_data.x86_phys_bits,
context->shadow_root_level, uses_nx,
- guest_cpuid_has_gbpages(vcpu), is_pse(vcpu),
- true);
+ guest_cpuid_has(vcpu, X86_FEATURE_GBPAGES),
+ is_pse(vcpu), true);
+
+ if (!shadow_me_mask)
+ return;
+
+ for (i = context->shadow_root_level; --i >= 0;) {
+ shadow_zero_check->rsvd_bits_mask[0][i] &= ~shadow_me_mask;
+ shadow_zero_check->rsvd_bits_mask[1][i] &= ~shadow_me_mask;
+ }
+
}
EXPORT_SYMBOL_GPL(reset_shadow_zero_bits_mask);
@@ -4056,17 +4194,29 @@ static void
reset_tdp_shadow_zero_bits_mask(struct kvm_vcpu *vcpu,
struct kvm_mmu *context)
{
+ struct rsvd_bits_validate *shadow_zero_check;
+ int i;
+
+ shadow_zero_check = &context->shadow_zero_check;
+
if (boot_cpu_is_amd())
- __reset_rsvds_bits_mask(vcpu, &context->shadow_zero_check,
+ __reset_rsvds_bits_mask(vcpu, shadow_zero_check,
boot_cpu_data.x86_phys_bits,
context->shadow_root_level, false,
boot_cpu_has(X86_FEATURE_GBPAGES),
true, true);
else
- __reset_rsvds_bits_mask_ept(&context->shadow_zero_check,
+ __reset_rsvds_bits_mask_ept(shadow_zero_check,
boot_cpu_data.x86_phys_bits,
false);
+ if (!shadow_me_mask)
+ return;
+
+ for (i = context->shadow_root_level; --i >= 0;) {
+ shadow_zero_check->rsvd_bits_mask[0][i] &= ~shadow_me_mask;
+ shadow_zero_check->rsvd_bits_mask[1][i] &= ~shadow_me_mask;
+ }
}
/*
@@ -4081,66 +4231,85 @@ reset_ept_shadow_zero_bits_mask(struct kvm_vcpu *vcpu,
boot_cpu_data.x86_phys_bits, execonly);
}
+#define BYTE_MASK(access) \
+ ((1 & (access) ? 2 : 0) | \
+ (2 & (access) ? 4 : 0) | \
+ (3 & (access) ? 8 : 0) | \
+ (4 & (access) ? 16 : 0) | \
+ (5 & (access) ? 32 : 0) | \
+ (6 & (access) ? 64 : 0) | \
+ (7 & (access) ? 128 : 0))
+
+
static void update_permission_bitmask(struct kvm_vcpu *vcpu,
struct kvm_mmu *mmu, bool ept)
{
- unsigned bit, byte, pfec;
- u8 map;
- bool fault, x, w, u, wf, uf, ff, smapf, cr4_smap, cr4_smep, smap = 0;
+ unsigned byte;
+
+ const u8 x = BYTE_MASK(ACC_EXEC_MASK);
+ const u8 w = BYTE_MASK(ACC_WRITE_MASK);
+ const u8 u = BYTE_MASK(ACC_USER_MASK);
+
+ bool cr4_smep = kvm_read_cr4_bits(vcpu, X86_CR4_SMEP) != 0;
+ bool cr4_smap = kvm_read_cr4_bits(vcpu, X86_CR4_SMAP) != 0;
+ bool cr0_wp = is_write_protection(vcpu);
- cr4_smep = kvm_read_cr4_bits(vcpu, X86_CR4_SMEP);
- cr4_smap = kvm_read_cr4_bits(vcpu, X86_CR4_SMAP);
for (byte = 0; byte < ARRAY_SIZE(mmu->permissions); ++byte) {
- pfec = byte << 1;
- map = 0;
- wf = pfec & PFERR_WRITE_MASK;
- uf = pfec & PFERR_USER_MASK;
- ff = pfec & PFERR_FETCH_MASK;
+ unsigned pfec = byte << 1;
+
/*
- * PFERR_RSVD_MASK bit is set in PFEC if the access is not
- * subject to SMAP restrictions, and cleared otherwise. The
- * bit is only meaningful if the SMAP bit is set in CR4.
+ * Each "*f" variable has a 1 bit for each UWX value
+ * that causes a fault with the given PFEC.
*/
- smapf = !(pfec & PFERR_RSVD_MASK);
- for (bit = 0; bit < 8; ++bit) {
- x = bit & ACC_EXEC_MASK;
- w = bit & ACC_WRITE_MASK;
- u = bit & ACC_USER_MASK;
-
- if (!ept) {
- /* Not really needed: !nx will cause pte.nx to fault */
- x |= !mmu->nx;
- /* Allow supervisor writes if !cr0.wp */
- w |= !is_write_protection(vcpu) && !uf;
- /* Disallow supervisor fetches of user code if cr4.smep */
- x &= !(cr4_smep && u && !uf);
-
- /*
- * SMAP:kernel-mode data accesses from user-mode
- * mappings should fault. A fault is considered
- * as a SMAP violation if all of the following
- * conditions are ture:
- * - X86_CR4_SMAP is set in CR4
- * - A user page is accessed
- * - Page fault in kernel mode
- * - if CPL = 3 or X86_EFLAGS_AC is clear
- *
- * Here, we cover the first three conditions.
- * The fourth is computed dynamically in
- * permission_fault() and is in smapf.
- *
- * Also, SMAP does not affect instruction
- * fetches, add the !ff check here to make it
- * clearer.
- */
- smap = cr4_smap && u && !uf && !ff;
- }
- fault = (ff && !x) || (uf && !u) || (wf && !w) ||
- (smapf && smap);
- map |= fault << bit;
+ /* Faults from writes to non-writable pages */
+ u8 wf = (pfec & PFERR_WRITE_MASK) ? ~w : 0;
+ /* Faults from user mode accesses to supervisor pages */
+ u8 uf = (pfec & PFERR_USER_MASK) ? ~u : 0;
+ /* Faults from fetches of non-executable pages*/
+ u8 ff = (pfec & PFERR_FETCH_MASK) ? ~x : 0;
+ /* Faults from kernel mode fetches of user pages */
+ u8 smepf = 0;
+ /* Faults from kernel mode accesses of user pages */
+ u8 smapf = 0;
+
+ if (!ept) {
+ /* Faults from kernel mode accesses to user pages */
+ u8 kf = (pfec & PFERR_USER_MASK) ? 0 : u;
+
+ /* Not really needed: !nx will cause pte.nx to fault */
+ if (!mmu->nx)
+ ff = 0;
+
+ /* Allow supervisor writes if !cr0.wp */
+ if (!cr0_wp)
+ wf = (pfec & PFERR_USER_MASK) ? wf : 0;
+
+ /* Disallow supervisor fetches of user code if cr4.smep */
+ if (cr4_smep)
+ smepf = (pfec & PFERR_FETCH_MASK) ? kf : 0;
+
+ /*
+ * SMAP:kernel-mode data accesses from user-mode
+ * mappings should fault. A fault is considered
+ * as a SMAP violation if all of the following
+ * conditions are ture:
+ * - X86_CR4_SMAP is set in CR4
+ * - A user page is accessed
+ * - The access is not a fetch
+ * - Page fault in kernel mode
+ * - if CPL = 3 or X86_EFLAGS_AC is clear
+ *
+ * Here, we cover the first three conditions.
+ * The fourth is computed dynamically in permission_fault();
+ * PFERR_RSVD_MASK bit will be set in PFEC if the access is
+ * *not* subject to SMAP restrictions.
+ */
+ if (cr4_smap)
+ smapf = (pfec & (PFERR_RSVD_MASK|PFERR_FETCH_MASK)) ? 0 : kf;
}
- mmu->permissions[byte] = map;
+
+ mmu->permissions[byte] = ff | uf | wf | smepf | smapf;
}
}
@@ -4254,7 +4423,10 @@ static void paging64_init_context_common(struct kvm_vcpu *vcpu,
static void paging64_init_context(struct kvm_vcpu *vcpu,
struct kvm_mmu *context)
{
- paging64_init_context_common(vcpu, context, PT64_ROOT_LEVEL);
+ int root_level = is_la57_mode(vcpu) ?
+ PT64_ROOT_5LEVEL : PT64_ROOT_4LEVEL;
+
+ paging64_init_context_common(vcpu, context, root_level);
}
static void paging32_init_context(struct kvm_vcpu *vcpu,
@@ -4290,11 +4462,12 @@ static void init_kvm_tdp_mmu(struct kvm_vcpu *vcpu)
context->base_role.word = 0;
context->base_role.smm = is_smm(vcpu);
+ context->base_role.ad_disabled = (shadow_accessed_mask == 0);
context->page_fault = tdp_page_fault;
context->sync_page = nonpaging_sync_page;
context->invlpg = nonpaging_invlpg;
context->update_pte = nonpaging_update_pte;
- context->shadow_root_level = kvm_x86_ops->get_tdp_level();
+ context->shadow_root_level = kvm_x86_ops->get_tdp_level(vcpu);
context->root_hpa = INVALID_PAGE;
context->direct_map = true;
context->set_cr3 = kvm_x86_ops->set_tdp_cr3;
@@ -4308,7 +4481,8 @@ static void init_kvm_tdp_mmu(struct kvm_vcpu *vcpu)
context->root_level = 0;
} else if (is_long_mode(vcpu)) {
context->nx = is_nx(vcpu);
- context->root_level = PT64_ROOT_LEVEL;
+ context->root_level = is_la57_mode(vcpu) ?
+ PT64_ROOT_5LEVEL : PT64_ROOT_4LEVEL;
reset_rsvds_bits_mask(vcpu, context);
context->gva_to_gpa = paging64_gva_to_gpa;
} else if (is_pae(vcpu)) {
@@ -4365,7 +4539,7 @@ void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, bool execonly,
MMU_WARN_ON(VALID_PAGE(context->root_hpa));
- context->shadow_root_level = kvm_x86_ops->get_tdp_level();
+ context->shadow_root_level = PT64_ROOT_4LEVEL;
context->nx = true;
context->ept_ad = accessed_dirty;
@@ -4374,12 +4548,14 @@ void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, bool execonly,
context->sync_page = ept_sync_page;
context->invlpg = ept_invlpg;
context->update_pte = ept_update_pte;
- context->root_level = context->shadow_root_level;
+ context->root_level = PT64_ROOT_4LEVEL;
context->root_hpa = INVALID_PAGE;
context->direct_map = false;
+ context->base_role.ad_disabled = !accessed_dirty;
update_permission_bitmask(vcpu, context, true);
update_pkru_bitmask(vcpu, context, true);
+ update_last_nonleaf_level(vcpu, context);
reset_rsvds_bits_mask_ept(vcpu, context, execonly);
reset_ept_shadow_zero_bits_mask(vcpu, context, execonly);
}
@@ -4418,7 +4594,8 @@ static void init_kvm_nested_mmu(struct kvm_vcpu *vcpu)
g_context->gva_to_gpa = nonpaging_gva_to_gpa_nested;
} else if (is_long_mode(vcpu)) {
g_context->nx = is_nx(vcpu);
- g_context->root_level = PT64_ROOT_LEVEL;
+ g_context->root_level = is_la57_mode(vcpu) ?
+ PT64_ROOT_5LEVEL : PT64_ROOT_4LEVEL;
reset_rsvds_bits_mask(vcpu, g_context);
g_context->gva_to_gpa = paging64_gva_to_gpa_nested;
} else if (is_pae(vcpu)) {
@@ -4636,6 +4813,7 @@ static void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
mask.smep_andnot_wp = 1;
mask.smap_andnot_wp = 1;
mask.smm = 1;
+ mask.ad_disabled = 1;
/*
* If we don't have indirect shadow pages, it means no page is
@@ -4707,12 +4885,12 @@ int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva)
}
EXPORT_SYMBOL_GPL(kvm_mmu_unprotect_page_virt);
-static void make_mmu_pages_available(struct kvm_vcpu *vcpu)
+static int make_mmu_pages_available(struct kvm_vcpu *vcpu)
{
LIST_HEAD(invalid_list);
if (likely(kvm_mmu_available_pages(vcpu->kvm) >= KVM_MIN_FREE_MMU_PAGES))
- return;
+ return 0;
while (kvm_mmu_available_pages(vcpu->kvm) < KVM_REFILL_PAGES) {
if (!prepare_zap_oldest_mmu_page(vcpu->kvm, &invalid_list))
@@ -4721,6 +4899,10 @@ static void make_mmu_pages_available(struct kvm_vcpu *vcpu)
++vcpu->kvm->stat.mmu_recycled;
}
kvm_mmu_commit_zap_page(vcpu->kvm, &invalid_list);
+
+ if (!kvm_mmu_available_pages(vcpu->kvm))
+ return -ENOSPC;
+ return 0;
}
int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u64 error_code,
@@ -4728,7 +4910,13 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u64 error_code,
{
int r, emulation_type = EMULTYPE_RETRY;
enum emulation_result er;
- bool direct = vcpu->arch.mmu.direct_map || mmu_is_nested(vcpu);
+ bool direct = vcpu->arch.mmu.direct_map;
+
+ /* With shadow page tables, fault_address contains a GVA or nGPA. */
+ if (vcpu->arch.mmu.direct_map) {
+ vcpu->arch.gpa_available = true;
+ vcpu->arch.gpa_val = cr2;
+ }
if (unlikely(error_code & PFERR_RSVD_MASK)) {
r = handle_mmio_page_fault(vcpu, cr2, direct);
@@ -4740,6 +4928,7 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u64 error_code,
return 1;
if (r < 0)
return r;
+ /* Must be RET_MMIO_PF_INVALID. */
}
r = vcpu->arch.mmu.page_fault(vcpu, cr2, lower_32_bits(error_code),
@@ -4755,11 +4944,9 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u64 error_code,
* This can occur when using nested virtualization with nested
* paging in both guests. If true, we simply unprotect the page
* and resume the guest.
- *
- * Note: AMD only (since it supports the PFERR_GUEST_PAGE_MASK used
- * in PFERR_NEXT_GUEST_PAGE)
*/
- if (error_code == PFERR_NESTED_GUEST_PAGE) {
+ if (vcpu->arch.mmu.direct_map &&
+ (error_code & PFERR_NESTED_GUEST_PAGE) == PFERR_NESTED_GUEST_PAGE) {
kvm_mmu_unprotect_page(vcpu->kvm, gpa_to_gfn(cr2));
return 1;
}
diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h
index 330bf3a811fb..64a2dbd2b1af 100644
--- a/arch/x86/kvm/mmu.h
+++ b/arch/x86/kvm/mmu.h
@@ -37,7 +37,8 @@
#define PT32_DIR_PSE36_MASK \
(((1ULL << PT32_DIR_PSE36_SIZE) - 1) << PT32_DIR_PSE36_SHIFT)
-#define PT64_ROOT_LEVEL 4
+#define PT64_ROOT_5LEVEL 5
+#define PT64_ROOT_4LEVEL 4
#define PT32_ROOT_LEVEL 2
#define PT32E_ROOT_LEVEL 3
@@ -48,35 +49,24 @@
static inline u64 rsvd_bits(int s, int e)
{
+ if (e < s)
+ return 0;
+
return ((1ULL << (e - s + 1)) - 1) << s;
}
-void kvm_mmu_set_mmio_spte_mask(u64 mmio_mask);
+void kvm_mmu_set_mmio_spte_mask(u64 mmio_mask, u64 mmio_value);
void
reset_shadow_zero_bits_mask(struct kvm_vcpu *vcpu, struct kvm_mmu *context);
-/*
- * Return values of handle_mmio_page_fault:
- * RET_MMIO_PF_EMULATE: it is a real mmio page fault, emulate the instruction
- * directly.
- * RET_MMIO_PF_INVALID: invalid spte is detected then let the real page
- * fault path update the mmio spte.
- * RET_MMIO_PF_RETRY: let CPU fault again on the address.
- * RET_MMIO_PF_BUG: a bug was detected (and a WARN was printed).
- */
-enum {
- RET_MMIO_PF_EMULATE = 1,
- RET_MMIO_PF_INVALID = 2,
- RET_MMIO_PF_RETRY = 0,
- RET_MMIO_PF_BUG = -1
-};
-
-int handle_mmio_page_fault(struct kvm_vcpu *vcpu, u64 addr, bool direct);
void kvm_init_shadow_mmu(struct kvm_vcpu *vcpu);
void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, bool execonly,
bool accessed_dirty);
bool kvm_can_do_async_pf(struct kvm_vcpu *vcpu);
+int kvm_handle_page_fault(struct kvm_vcpu *vcpu, u64 error_code,
+ u64 fault_address, char *insn, int insn_len,
+ bool need_unprotect);
static inline unsigned int kvm_mmu_available_pages(struct kvm *kvm)
{
@@ -182,7 +172,7 @@ static inline u8 permission_fault(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
* index of the protection domain, so pte_pkey * 2 is
* is the index of the first bit for the domain.
*/
- pkru_bits = (kvm_read_pkru(vcpu) >> (pte_pkey * 2)) & 3;
+ pkru_bits = (vcpu->arch.pkru >> (pte_pkey * 2)) & 3;
/* clear present bit, replace PFEC.RSVD with ACC_USER_MASK. */
offset = (pfec & ~1) +
diff --git a/arch/x86/kvm/mmu_audit.c b/arch/x86/kvm/mmu_audit.c
index dcce533d420c..d22ddbdf5e6e 100644
--- a/arch/x86/kvm/mmu_audit.c
+++ b/arch/x86/kvm/mmu_audit.c
@@ -62,11 +62,11 @@ static void mmu_spte_walk(struct kvm_vcpu *vcpu, inspect_spte_fn fn)
if (!VALID_PAGE(vcpu->arch.mmu.root_hpa))
return;
- if (vcpu->arch.mmu.root_level == PT64_ROOT_LEVEL) {
+ if (vcpu->arch.mmu.root_level >= PT64_ROOT_4LEVEL) {
hpa_t root = vcpu->arch.mmu.root_hpa;
sp = page_header(root);
- __mmu_spte_walk(vcpu, sp, fn, PT64_ROOT_LEVEL);
+ __mmu_spte_walk(vcpu, sp, fn, vcpu->arch.mmu.root_level);
return;
}
diff --git a/arch/x86/kvm/mmutrace.h b/arch/x86/kvm/mmutrace.h
index 5a24b846a1cb..8b97a6cba8d1 100644
--- a/arch/x86/kvm/mmutrace.h
+++ b/arch/x86/kvm/mmutrace.h
@@ -30,8 +30,9 @@
\
role.word = __entry->role; \
\
- trace_seq_printf(p, "sp gen %lx gfn %llx %u%s q%u%s %s%s" \
- " %snxe root %u %s%c", __entry->mmu_valid_gen, \
+ trace_seq_printf(p, "sp gen %lx gfn %llx l%u%s q%u%s %s%s" \
+ " %snxe %sad root %u %s%c", \
+ __entry->mmu_valid_gen, \
__entry->gfn, role.level, \
role.cr4_pae ? " pae" : "", \
role.quadrant, \
@@ -39,6 +40,7 @@
access_str[role.access], \
role.invalid ? " invalid" : "", \
role.nxe ? "" : "!", \
+ role.ad_disabled ? "!" : "", \
__entry->root_count, \
__entry->unsync ? "unsync" : "sync", 0); \
saved_ptr; \
diff --git a/arch/x86/kvm/mtrr.c b/arch/x86/kvm/mtrr.c
index 0149ac59c273..e9ea2d45ae66 100644
--- a/arch/x86/kvm/mtrr.c
+++ b/arch/x86/kvm/mtrr.c
@@ -130,7 +130,7 @@ static u8 mtrr_disabled_type(struct kvm_vcpu *vcpu)
* enable MTRRs and it is obviously undesirable to run the
* guest entirely with UC memory and we use WB.
*/
- if (guest_cpuid_has_mtrr(vcpu))
+ if (guest_cpuid_has(vcpu, X86_FEATURE_MTRR))
return MTRR_TYPE_UNCACHABLE;
else
return MTRR_TYPE_WRBACK;
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index b0454c7e4cff..f18d1f8d332b 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -334,10 +334,11 @@ retry_walk:
--walker->level;
index = PT_INDEX(addr, walker->level);
-
table_gfn = gpte_to_gfn(pte);
offset = index * sizeof(pt_element_t);
pte_gpa = gfn_to_gpa(table_gfn) + offset;
+
+ BUG_ON(walker->level < 1);
walker->table_gfn[walker->level - 1] = table_gfn;
walker->pte_gpa[walker->level - 1] = pte_gpa;
@@ -790,8 +791,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, u32 error_code,
&map_writable))
return 0;
- if (handle_abnormal_pfn(vcpu, mmu_is_nested(vcpu) ? 0 : addr,
- walker.gfn, pfn, walker.pte_access, &r))
+ if (handle_abnormal_pfn(vcpu, addr, walker.gfn, pfn, walker.pte_access, &r))
return r;
/*
@@ -819,7 +819,8 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, u32 error_code,
goto out_unlock;
kvm_mmu_audit(vcpu, AUDIT_PRE_PAGE_FAULT);
- make_mmu_pages_available(vcpu);
+ if (make_mmu_pages_available(vcpu) < 0)
+ goto out_unlock;
if (!force_pt_level)
transparent_hugepage_adjust(vcpu, &walker.gfn, &pfn, &level);
r = FNAME(fetch)(vcpu, addr, &walker, write_fault,
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index ba9891ac5c56..0e68f0b3cbf7 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -36,6 +36,7 @@
#include <linux/slab.h>
#include <linux/amd-iommu.h>
#include <linux/hashtable.h>
+#include <linux/frame.h>
#include <asm/apic.h>
#include <asm/perf_event.h>
@@ -189,10 +190,10 @@ struct vcpu_svm {
struct nested_state nested;
bool nmi_singlestep;
+ u64 nmi_singlestep_guest_rflags;
unsigned int3_injected;
unsigned long int3_rip;
- u32 apf_reason;
/* cached guest cpuid flags for faster access */
bool nrips_enabled : 1;
@@ -275,9 +276,13 @@ static int avic;
module_param(avic, int, S_IRUGO);
#endif
-/* AVIC VM ID bit masks and lock */
-static DECLARE_BITMAP(avic_vm_id_bitmap, AVIC_VM_ID_NR);
-static DEFINE_SPINLOCK(avic_vm_id_lock);
+/* enable/disable Virtual VMLOAD VMSAVE */
+static int vls = true;
+module_param(vls, int, 0444);
+
+/* enable/disable Virtual GIF */
+static int vgif = true;
+module_param(vgif, int, 0444);
static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
static void svm_flush_tlb(struct kvm_vcpu *vcpu);
@@ -474,19 +479,33 @@ static inline void clr_intercept(struct vcpu_svm *svm, int bit)
recalc_intercepts(svm);
}
+static inline bool vgif_enabled(struct vcpu_svm *svm)
+{
+ return !!(svm->vmcb->control.int_ctl & V_GIF_ENABLE_MASK);
+}
+
static inline void enable_gif(struct vcpu_svm *svm)
{
- svm->vcpu.arch.hflags |= HF_GIF_MASK;
+ if (vgif_enabled(svm))
+ svm->vmcb->control.int_ctl |= V_GIF_MASK;
+ else
+ svm->vcpu.arch.hflags |= HF_GIF_MASK;
}
static inline void disable_gif(struct vcpu_svm *svm)
{
- svm->vcpu.arch.hflags &= ~HF_GIF_MASK;
+ if (vgif_enabled(svm))
+ svm->vmcb->control.int_ctl &= ~V_GIF_MASK;
+ else
+ svm->vcpu.arch.hflags &= ~HF_GIF_MASK;
}
static inline bool gif_set(struct vcpu_svm *svm)
{
- return !!(svm->vcpu.arch.hflags & HF_GIF_MASK);
+ if (vgif_enabled(svm))
+ return !!(svm->vmcb->control.int_ctl & V_GIF_MASK);
+ else
+ return !!(svm->vcpu.arch.hflags & HF_GIF_MASK);
}
static unsigned long iopm_base;
@@ -562,10 +581,10 @@ static inline void invlpga(unsigned long addr, u32 asid)
asm volatile (__ex(SVM_INVLPGA) : : "a"(addr), "c"(asid));
}
-static int get_npt_level(void)
+static int get_npt_level(struct kvm_vcpu *vcpu)
{
#ifdef CONFIG_X86_64
- return PT64_ROOT_LEVEL;
+ return PT64_ROOT_4LEVEL;
#else
return PT32E_ROOT_LEVEL;
#endif
@@ -631,11 +650,13 @@ static void skip_emulated_instruction(struct kvm_vcpu *vcpu)
svm_set_interrupt_shadow(vcpu, 0);
}
-static void svm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr,
- bool has_error_code, u32 error_code,
- bool reinject)
+static void svm_queue_exception(struct kvm_vcpu *vcpu)
{
struct vcpu_svm *svm = to_svm(vcpu);
+ unsigned nr = vcpu->arch.exception.nr;
+ bool has_error_code = vcpu->arch.exception.has_error_code;
+ bool reinject = vcpu->arch.exception.injected;
+ u32 error_code = vcpu->arch.exception.error_code;
/*
* If we are within a nested VM we'd better #VMEXIT and let the guest
@@ -945,7 +966,7 @@ static void svm_enable_lbrv(struct vcpu_svm *svm)
{
u32 *msrpm = svm->msrpm;
- svm->vmcb->control.lbr_ctl = 1;
+ svm->vmcb->control.virt_ext |= LBR_CTL_ENABLE_MASK;
set_msr_interception(msrpm, MSR_IA32_LASTBRANCHFROMIP, 1, 1);
set_msr_interception(msrpm, MSR_IA32_LASTBRANCHTOIP, 1, 1);
set_msr_interception(msrpm, MSR_IA32_LASTINTFROMIP, 1, 1);
@@ -956,13 +977,26 @@ static void svm_disable_lbrv(struct vcpu_svm *svm)
{
u32 *msrpm = svm->msrpm;
- svm->vmcb->control.lbr_ctl = 0;
+ svm->vmcb->control.virt_ext &= ~LBR_CTL_ENABLE_MASK;
set_msr_interception(msrpm, MSR_IA32_LASTBRANCHFROMIP, 0, 0);
set_msr_interception(msrpm, MSR_IA32_LASTBRANCHTOIP, 0, 0);
set_msr_interception(msrpm, MSR_IA32_LASTINTFROMIP, 0, 0);
set_msr_interception(msrpm, MSR_IA32_LASTINTTOIP, 0, 0);
}
+static void disable_nmi_singlestep(struct vcpu_svm *svm)
+{
+ svm->nmi_singlestep = false;
+
+ if (!(svm->vcpu.guest_debug & KVM_GUESTDBG_SINGLESTEP)) {
+ /* Clear our flags if they were not set by the guest */
+ if (!(svm->nmi_singlestep_guest_rflags & X86_EFLAGS_TF))
+ svm->vmcb->save.rflags &= ~X86_EFLAGS_TF;
+ if (!(svm->nmi_singlestep_guest_rflags & X86_EFLAGS_RF))
+ svm->vmcb->save.rflags &= ~X86_EFLAGS_RF;
+ }
+}
+
/* Note:
* This hash table is used to map VM_ID to a struct kvm_arch,
* when handling AMD IOMMU GALOG notification to schedule in
@@ -970,6 +1004,8 @@ static void svm_disable_lbrv(struct vcpu_svm *svm)
*/
#define SVM_VM_DATA_HASH_BITS 8
static DEFINE_HASHTABLE(svm_vm_data_hash, SVM_VM_DATA_HASH_BITS);
+static u32 next_vm_id = 0;
+static bool next_vm_id_wrapped = 0;
static DEFINE_SPINLOCK(svm_vm_data_hash_lock);
/* Note:
@@ -1079,6 +1115,23 @@ static __init int svm_hardware_setup(void)
}
}
+ if (vls) {
+ if (!npt_enabled ||
+ !boot_cpu_has(X86_FEATURE_V_VMSAVE_VMLOAD) ||
+ !IS_ENABLED(CONFIG_X86_64)) {
+ vls = false;
+ } else {
+ pr_info("Virtual VMLOAD VMSAVE supported\n");
+ }
+ }
+
+ if (vgif) {
+ if (!boot_cpu_has(X86_FEATURE_VGIF))
+ vgif = false;
+ else
+ pr_info("Virtual GIF supported\n");
+ }
+
return 0;
err:
@@ -1138,16 +1191,15 @@ static void avic_init_vmcb(struct vcpu_svm *svm)
{
struct vmcb *vmcb = svm->vmcb;
struct kvm_arch *vm_data = &svm->vcpu.kvm->arch;
- phys_addr_t bpa = page_to_phys(svm->avic_backing_page);
- phys_addr_t lpa = page_to_phys(vm_data->avic_logical_id_table_page);
- phys_addr_t ppa = page_to_phys(vm_data->avic_physical_id_table_page);
+ phys_addr_t bpa = __sme_set(page_to_phys(svm->avic_backing_page));
+ phys_addr_t lpa = __sme_set(page_to_phys(vm_data->avic_logical_id_table_page));
+ phys_addr_t ppa = __sme_set(page_to_phys(vm_data->avic_physical_id_table_page));
vmcb->control.avic_backing_page = bpa & AVIC_HPA_MASK;
vmcb->control.avic_logical_id = lpa & AVIC_HPA_MASK;
vmcb->control.avic_physical_id = ppa & AVIC_HPA_MASK;
vmcb->control.avic_physical_id |= AVIC_MAX_PHYSICAL_ID_COUNT;
vmcb->control.int_ctl |= AVIC_ENABLE_MASK;
- svm->vcpu.arch.apicv_active = true;
}
static void init_vmcb(struct vcpu_svm *svm)
@@ -1203,8 +1255,8 @@ static void init_vmcb(struct vcpu_svm *svm)
set_intercept(svm, INTERCEPT_MWAIT);
}
- control->iopm_base_pa = iopm_base;
- control->msrpm_base_pa = __pa(svm->msrpm);
+ control->iopm_base_pa = __sme_set(iopm_base);
+ control->msrpm_base_pa = __sme_set(__pa(svm->msrpm));
control->int_ctl = V_INTR_MASKING_MASK;
init_seg(&save->es);
@@ -1263,9 +1315,25 @@ static void init_vmcb(struct vcpu_svm *svm)
set_intercept(svm, INTERCEPT_PAUSE);
}
- if (avic)
+ if (kvm_vcpu_apicv_active(&svm->vcpu))
avic_init_vmcb(svm);
+ /*
+ * If hardware supports Virtual VMLOAD VMSAVE then enable it
+ * in VMCB and clear intercepts to avoid #VMEXIT.
+ */
+ if (vls) {
+ clr_intercept(svm, INTERCEPT_VMLOAD);
+ clr_intercept(svm, INTERCEPT_VMSAVE);
+ svm->vmcb->control.virt_ext |= VIRTUAL_VMLOAD_VMSAVE_ENABLE_MASK;
+ }
+
+ if (vgif) {
+ clr_intercept(svm, INTERCEPT_STGI);
+ clr_intercept(svm, INTERCEPT_CLGI);
+ svm->vmcb->control.int_ctl |= V_GIF_ENABLE_MASK;
+ }
+
mark_all_dirty(svm->vmcb);
enable_gif(svm);
@@ -1338,9 +1406,9 @@ static int avic_init_backing_page(struct kvm_vcpu *vcpu)
return -EINVAL;
new_entry = READ_ONCE(*entry);
- new_entry = (page_to_phys(svm->avic_backing_page) &
- AVIC_PHYSICAL_ID_ENTRY_BACKING_PAGE_MASK) |
- AVIC_PHYSICAL_ID_ENTRY_VALID_MASK;
+ new_entry = __sme_set((page_to_phys(svm->avic_backing_page) &
+ AVIC_PHYSICAL_ID_ENTRY_BACKING_PAGE_MASK) |
+ AVIC_PHYSICAL_ID_ENTRY_VALID_MASK);
WRITE_ONCE(*entry, new_entry);
svm->avic_physical_id_cache = entry;
@@ -1348,34 +1416,6 @@ static int avic_init_backing_page(struct kvm_vcpu *vcpu)
return 0;
}
-static inline int avic_get_next_vm_id(void)
-{
- int id;
-
- spin_lock(&avic_vm_id_lock);
-
- /* AVIC VM ID is one-based. */
- id = find_next_zero_bit(avic_vm_id_bitmap, AVIC_VM_ID_NR, 1);
- if (id <= AVIC_VM_ID_MASK)
- __set_bit(id, avic_vm_id_bitmap);
- else
- id = -EAGAIN;
-
- spin_unlock(&avic_vm_id_lock);
- return id;
-}
-
-static inline int avic_free_vm_id(int id)
-{
- if (id <= 0 || id > AVIC_VM_ID_MASK)
- return -EINVAL;
-
- spin_lock(&avic_vm_id_lock);
- __clear_bit(id, avic_vm_id_bitmap);
- spin_unlock(&avic_vm_id_lock);
- return 0;
-}
-
static void avic_vm_destroy(struct kvm *kvm)
{
unsigned long flags;
@@ -1384,8 +1424,6 @@ static void avic_vm_destroy(struct kvm *kvm)
if (!avic)
return;
- avic_free_vm_id(vm_data->avic_vm_id);
-
if (vm_data->avic_logical_id_table_page)
__free_page(vm_data->avic_logical_id_table_page);
if (vm_data->avic_physical_id_table_page)
@@ -1399,19 +1437,16 @@ static void avic_vm_destroy(struct kvm *kvm)
static int avic_vm_init(struct kvm *kvm)
{
unsigned long flags;
- int vm_id, err = -ENOMEM;
+ int err = -ENOMEM;
struct kvm_arch *vm_data = &kvm->arch;
struct page *p_page;
struct page *l_page;
+ struct kvm_arch *ka;
+ u32 vm_id;
if (!avic)
return 0;
- vm_id = avic_get_next_vm_id();
- if (vm_id < 0)
- return vm_id;
- vm_data->avic_vm_id = (u32)vm_id;
-
/* Allocating physical APIC ID table (4KB) */
p_page = alloc_page(GFP_KERNEL);
if (!p_page)
@@ -1429,6 +1464,22 @@ static int avic_vm_init(struct kvm *kvm)
clear_page(page_address(l_page));
spin_lock_irqsave(&svm_vm_data_hash_lock, flags);
+ again:
+ vm_id = next_vm_id = (next_vm_id + 1) & AVIC_VM_ID_MASK;
+ if (vm_id == 0) { /* id is 1-based, zero is not okay */
+ next_vm_id_wrapped = 1;
+ goto again;
+ }
+ /* Is it still in use? Only possible if wrapped at least once */
+ if (next_vm_id_wrapped) {
+ hash_for_each_possible(svm_vm_data_hash, ka, hnode, vm_id) {
+ struct kvm *k2 = container_of(ka, struct kvm, arch);
+ struct kvm_arch *vd2 = &k2->arch;
+ if (vd2->avic_vm_id == vm_id)
+ goto again;
+ }
+ }
+ vm_data->avic_vm_id = vm_id;
hash_add(svm_vm_data_hash, &vm_data->hnode, vm_data->avic_vm_id);
spin_unlock_irqrestore(&svm_vm_data_hash_lock, flags);
@@ -1541,13 +1592,30 @@ static void svm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event)
}
init_vmcb(svm);
- kvm_cpuid(vcpu, &eax, &dummy, &dummy, &dummy);
+ kvm_cpuid(vcpu, &eax, &dummy, &dummy, &dummy, true);
kvm_register_write(vcpu, VCPU_REGS_RDX, eax);
if (kvm_vcpu_apicv_active(vcpu) && !init_event)
avic_update_vapic_bar(svm, APIC_DEFAULT_PHYS_BASE);
}
+static int avic_init_vcpu(struct vcpu_svm *svm)
+{
+ int ret;
+
+ if (!kvm_vcpu_apicv_active(&svm->vcpu))
+ return 0;
+
+ ret = avic_init_backing_page(&svm->vcpu);
+ if (ret)
+ return ret;
+
+ INIT_LIST_HEAD(&svm->ir_list);
+ spin_lock_init(&svm->ir_list_lock);
+
+ return ret;
+}
+
static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id)
{
struct vcpu_svm *svm;
@@ -1584,14 +1652,9 @@ static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id)
if (!hsave_page)
goto free_page3;
- if (avic) {
- err = avic_init_backing_page(&svm->vcpu);
- if (err)
- goto free_page4;
-
- INIT_LIST_HEAD(&svm->ir_list);
- spin_lock_init(&svm->ir_list_lock);
- }
+ err = avic_init_vcpu(svm);
+ if (err)
+ goto free_page4;
/* We initialize this flag to true to make sure that the is_running
* bit would be set the first time the vcpu is loaded.
@@ -1608,7 +1671,7 @@ static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id)
svm->vmcb = page_address(page);
clear_page(svm->vmcb);
- svm->vmcb_pa = page_to_pfn(page) << PAGE_SHIFT;
+ svm->vmcb_pa = __sme_set(page_to_pfn(page) << PAGE_SHIFT);
svm->asid_generation = 0;
init_vmcb(svm);
@@ -1636,7 +1699,7 @@ static void svm_free_vcpu(struct kvm_vcpu *vcpu)
{
struct vcpu_svm *svm = to_svm(vcpu);
- __free_page(pfn_to_page(svm->vmcb_pa >> PAGE_SHIFT));
+ __free_page(pfn_to_page(__sme_clr(svm->vmcb_pa) >> PAGE_SHIFT));
__free_pages(virt_to_page(svm->msrpm), MSRPM_ALLOC_ORDER);
__free_page(virt_to_page(svm->nested.hsave));
__free_pages(virt_to_page(svm->nested.msrpm), MSRPM_ALLOC_ORDER);
@@ -1712,11 +1775,24 @@ static void svm_vcpu_unblocking(struct kvm_vcpu *vcpu)
static unsigned long svm_get_rflags(struct kvm_vcpu *vcpu)
{
- return to_svm(vcpu)->vmcb->save.rflags;
+ struct vcpu_svm *svm = to_svm(vcpu);
+ unsigned long rflags = svm->vmcb->save.rflags;
+
+ if (svm->nmi_singlestep) {
+ /* Hide our flags if they were not set by the guest */
+ if (!(svm->nmi_singlestep_guest_rflags & X86_EFLAGS_TF))
+ rflags &= ~X86_EFLAGS_TF;
+ if (!(svm->nmi_singlestep_guest_rflags & X86_EFLAGS_RF))
+ rflags &= ~X86_EFLAGS_RF;
+ }
+ return rflags;
}
static void svm_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
{
+ if (to_svm(vcpu)->nmi_singlestep)
+ rflags |= (X86_EFLAGS_TF | X86_EFLAGS_RF);
+
/*
* Any change of EFLAGS.VM is accompanied by a reload of SS
* (caused by either a task switch or an inter-privilege IRET),
@@ -1725,11 +1801,6 @@ static void svm_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
to_svm(vcpu)->vmcb->save.rflags = rflags;
}
-static u32 svm_get_pkru(struct kvm_vcpu *vcpu)
-{
- return 0;
-}
-
static void svm_cache_reg(struct kvm_vcpu *vcpu, enum kvm_reg reg)
{
switch (reg) {
@@ -2069,34 +2140,11 @@ static void svm_set_dr7(struct kvm_vcpu *vcpu, unsigned long value)
static int pf_interception(struct vcpu_svm *svm)
{
u64 fault_address = svm->vmcb->control.exit_info_2;
- u64 error_code;
- int r = 1;
-
- switch (svm->apf_reason) {
- default:
- error_code = svm->vmcb->control.exit_info_1;
+ u64 error_code = svm->vmcb->control.exit_info_1;
- trace_kvm_page_fault(fault_address, error_code);
- if (!npt_enabled && kvm_event_needs_reinjection(&svm->vcpu))
- kvm_mmu_unprotect_page_virt(&svm->vcpu, fault_address);
- r = kvm_mmu_page_fault(&svm->vcpu, fault_address, error_code,
+ return kvm_handle_page_fault(&svm->vcpu, error_code, fault_address,
svm->vmcb->control.insn_bytes,
- svm->vmcb->control.insn_len);
- break;
- case KVM_PV_REASON_PAGE_NOT_PRESENT:
- svm->apf_reason = 0;
- local_irq_disable();
- kvm_async_pf_task_wait(fault_address);
- local_irq_enable();
- break;
- case KVM_PV_REASON_PAGE_READY:
- svm->apf_reason = 0;
- local_irq_disable();
- kvm_async_pf_task_wake(fault_address);
- local_irq_enable();
- break;
- }
- return r;
+ svm->vmcb->control.insn_len, !npt_enabled);
}
static int db_interception(struct vcpu_svm *svm)
@@ -2111,10 +2159,7 @@ static int db_interception(struct vcpu_svm *svm)
}
if (svm->nmi_singlestep) {
- svm->nmi_singlestep = false;
- if (!(svm->vcpu.guest_debug & KVM_GUESTDBG_SINGLESTEP))
- svm->vmcb->save.rflags &=
- ~(X86_EFLAGS_TF | X86_EFLAGS_RF);
+ disable_nmi_singlestep(svm);
}
if (svm->vcpu.guest_debug &
@@ -2243,7 +2288,7 @@ static int io_interception(struct vcpu_svm *svm)
{
struct kvm_vcpu *vcpu = &svm->vcpu;
u32 io_info = svm->vmcb->control.exit_info_1; /* address size bug? */
- int size, in, string;
+ int size, in, string, ret;
unsigned port;
++svm->vcpu.stat.io_exits;
@@ -2255,10 +2300,16 @@ static int io_interception(struct vcpu_svm *svm)
port = io_info >> 16;
size = (io_info & SVM_IOIO_SIZE_MASK) >> SVM_IOIO_SIZE_SHIFT;
svm->next_rip = svm->vmcb->control.exit_info_2;
- skip_emulated_instruction(&svm->vcpu);
+ ret = kvm_skip_emulated_instruction(&svm->vcpu);
- return in ? kvm_fast_pio_in(vcpu, size, port)
- : kvm_fast_pio_out(vcpu, size, port);
+ /*
+ * TODO: we might be squashing a KVM_GUESTDBG_SINGLESTEP-triggered
+ * KVM_EXIT_DEBUG here.
+ */
+ if (in)
+ return kvm_fast_pio_in(vcpu, size, port) && ret;
+ else
+ return kvm_fast_pio_out(vcpu, size, port) && ret;
}
static int nmi_interception(struct vcpu_svm *svm)
@@ -2303,7 +2354,7 @@ static u64 nested_svm_get_tdp_pdptr(struct kvm_vcpu *vcpu, int index)
u64 pdpte;
int ret;
- ret = kvm_vcpu_read_guest_page(vcpu, gpa_to_gfn(cr3), &pdpte,
+ ret = kvm_vcpu_read_guest_page(vcpu, gpa_to_gfn(__sme_clr(cr3)), &pdpte,
offset_in_page(cr3) + index * 8, 8);
if (ret)
return 0;
@@ -2315,7 +2366,7 @@ static void nested_svm_set_tdp_cr3(struct kvm_vcpu *vcpu,
{
struct vcpu_svm *svm = to_svm(vcpu);
- svm->vmcb->control.nested_cr3 = root;
+ svm->vmcb->control.nested_cr3 = __sme_set(root);
mark_dirty(svm->vmcb, VMCB_NPT);
svm_flush_tlb(vcpu);
}
@@ -2357,7 +2408,7 @@ static void nested_svm_init_mmu_context(struct kvm_vcpu *vcpu)
vcpu->arch.mmu.get_cr3 = nested_svm_get_tdp_cr3;
vcpu->arch.mmu.get_pdptr = nested_svm_get_tdp_pdptr;
vcpu->arch.mmu.inject_page_fault = nested_svm_inject_npf_exit;
- vcpu->arch.mmu.shadow_root_level = get_npt_level();
+ vcpu->arch.mmu.shadow_root_level = get_npt_level(vcpu);
reset_shadow_zero_bits_mask(vcpu, &vcpu->arch.mmu);
vcpu->arch.walk_mmu = &vcpu->arch.nested_mmu;
}
@@ -2369,8 +2420,8 @@ static void nested_svm_uninit_mmu_context(struct kvm_vcpu *vcpu)
static int nested_svm_check_permissions(struct vcpu_svm *svm)
{
- if (!(svm->vcpu.arch.efer & EFER_SVME)
- || !is_paging(&svm->vcpu)) {
+ if (!(svm->vcpu.arch.efer & EFER_SVME) ||
+ !is_paging(&svm->vcpu)) {
kvm_queue_exception(&svm->vcpu, UD_VECTOR);
return 1;
}
@@ -2380,7 +2431,7 @@ static int nested_svm_check_permissions(struct vcpu_svm *svm)
return 1;
}
- return 0;
+ return 0;
}
static int nested_svm_check_exception(struct vcpu_svm *svm, unsigned nr,
@@ -2391,15 +2442,29 @@ static int nested_svm_check_exception(struct vcpu_svm *svm, unsigned nr,
if (!is_guest_mode(&svm->vcpu))
return 0;
+ vmexit = nested_svm_intercept(svm);
+ if (vmexit != NESTED_EXIT_DONE)
+ return 0;
+
svm->vmcb->control.exit_code = SVM_EXIT_EXCP_BASE + nr;
svm->vmcb->control.exit_code_hi = 0;
svm->vmcb->control.exit_info_1 = error_code;
- svm->vmcb->control.exit_info_2 = svm->vcpu.arch.cr2;
- vmexit = nested_svm_intercept(svm);
- if (vmexit == NESTED_EXIT_DONE)
- svm->nested.exit_required = true;
+ /*
+ * FIXME: we should not write CR2 when L1 intercepts an L2 #PF exception.
+ * The fix is to add the ancillary datum (CR2 or DR6) to structs
+ * kvm_queued_exception and kvm_vcpu_events, so that CR2 and DR6 can be
+ * written only when inject_pending_event runs (DR6 would written here
+ * too). This should be conditional on a new capability---if the
+ * capability is disabled, kvm_multiple_exception would write the
+ * ancillary information to CR2 or DR6, for backwards ABI-compatibility.
+ */
+ if (svm->vcpu.arch.exception.nested_apf)
+ svm->vmcb->control.exit_info_2 = svm->vcpu.arch.apf.nested_apf_token;
+ else
+ svm->vmcb->control.exit_info_2 = svm->vcpu.arch.cr2;
+ svm->nested.exit_required = true;
return vmexit;
}
@@ -2533,6 +2598,31 @@ static int nested_svm_exit_handled_msr(struct vcpu_svm *svm)
return (value & mask) ? NESTED_EXIT_DONE : NESTED_EXIT_HOST;
}
+/* DB exceptions for our internal use must not cause vmexit */
+static int nested_svm_intercept_db(struct vcpu_svm *svm)
+{
+ unsigned long dr6;
+
+ /* if we're not singlestepping, it's not ours */
+ if (!svm->nmi_singlestep)
+ return NESTED_EXIT_DONE;
+
+ /* if it's not a singlestep exception, it's not ours */
+ if (kvm_get_dr(&svm->vcpu, 6, &dr6))
+ return NESTED_EXIT_DONE;
+ if (!(dr6 & DR6_BS))
+ return NESTED_EXIT_DONE;
+
+ /* if the guest is singlestepping, it should get the vmexit */
+ if (svm->nmi_singlestep_guest_rflags & X86_EFLAGS_TF) {
+ disable_nmi_singlestep(svm);
+ return NESTED_EXIT_DONE;
+ }
+
+ /* it's ours, the nested hypervisor must not see this one */
+ return NESTED_EXIT_HOST;
+}
+
static int nested_svm_exit_special(struct vcpu_svm *svm)
{
u32 exit_code = svm->vmcb->control.exit_code;
@@ -2549,7 +2639,7 @@ static int nested_svm_exit_special(struct vcpu_svm *svm)
break;
case SVM_EXIT_EXCP_BASE + PF_VECTOR:
/* When we're shadowing, trap PFs, but not async PF */
- if (!npt_enabled && svm->apf_reason == 0)
+ if (!npt_enabled && svm->vcpu.arch.apf.host_apf_reason == 0)
return NESTED_EXIT_HOST;
break;
default:
@@ -2588,11 +2678,15 @@ static int nested_svm_intercept(struct vcpu_svm *svm)
}
case SVM_EXIT_EXCP_BASE ... SVM_EXIT_EXCP_BASE + 0x1f: {
u32 excp_bits = 1 << (exit_code - SVM_EXIT_EXCP_BASE);
- if (svm->nested.intercept_exceptions & excp_bits)
- vmexit = NESTED_EXIT_DONE;
+ if (svm->nested.intercept_exceptions & excp_bits) {
+ if (exit_code == SVM_EXIT_EXCP_BASE + DB_VECTOR)
+ vmexit = nested_svm_intercept_db(svm);
+ else
+ vmexit = NESTED_EXIT_DONE;
+ }
/* async page fault always cause vmexit */
else if ((exit_code == SVM_EXIT_EXCP_BASE + PF_VECTOR) &&
- svm->apf_reason != 0)
+ svm->vcpu.arch.exception.nested_apf != 0)
vmexit = NESTED_EXIT_DONE;
break;
}
@@ -2649,7 +2743,7 @@ static inline void copy_vmcb_control_area(struct vmcb *dst_vmcb, struct vmcb *fr
dst->event_inj = from->event_inj;
dst->event_inj_err = from->event_inj_err;
dst->nested_cr3 = from->nested_cr3;
- dst->lbr_ctl = from->lbr_ctl;
+ dst->virt_ext = from->virt_ext;
}
static int nested_svm_vmexit(struct vcpu_svm *svm)
@@ -2803,7 +2897,7 @@ static bool nested_svm_vmrun_msrpm(struct vcpu_svm *svm)
svm->nested.msrpm[p] = svm->msrpm[p] | value;
}
- svm->vmcb->control.msrpm_base_pa = __pa(svm->nested.msrpm);
+ svm->vmcb->control.msrpm_base_pa = __sme_set(__pa(svm->nested.msrpm));
return true;
}
@@ -2955,7 +3049,7 @@ static bool nested_svm_vmrun(struct vcpu_svm *svm)
/* We don't want to see VMMCALLs from a nested guest */
clr_intercept(svm, INTERCEPT_VMMCALL);
- svm->vmcb->control.lbr_ctl = nested_vmcb->control.lbr_ctl;
+ svm->vmcb->control.virt_ext = nested_vmcb->control.virt_ext;
svm->vmcb->control.int_vector = nested_vmcb->control.int_vector;
svm->vmcb->control.int_state = nested_vmcb->control.int_state;
svm->vmcb->control.tsc_offset += nested_vmcb->control.tsc_offset;
@@ -3002,6 +3096,7 @@ static int vmload_interception(struct vcpu_svm *svm)
{
struct vmcb *nested_vmcb;
struct page *page;
+ int ret;
if (nested_svm_check_permissions(svm))
return 1;
@@ -3011,18 +3106,19 @@ static int vmload_interception(struct vcpu_svm *svm)
return 1;
svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
- skip_emulated_instruction(&svm->vcpu);
+ ret = kvm_skip_emulated_instruction(&svm->vcpu);
nested_svm_vmloadsave(nested_vmcb, svm->vmcb);
nested_svm_unmap(page);
- return 1;
+ return ret;
}
static int vmsave_interception(struct vcpu_svm *svm)
{
struct vmcb *nested_vmcb;
struct page *page;
+ int ret;
if (nested_svm_check_permissions(svm))
return 1;
@@ -3032,12 +3128,12 @@ static int vmsave_interception(struct vcpu_svm *svm)
return 1;
svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
- skip_emulated_instruction(&svm->vcpu);
+ ret = kvm_skip_emulated_instruction(&svm->vcpu);
nested_svm_vmloadsave(svm->vmcb, nested_vmcb);
nested_svm_unmap(page);
- return 1;
+ return ret;
}
static int vmrun_interception(struct vcpu_svm *svm)
@@ -3070,25 +3166,36 @@ failed:
static int stgi_interception(struct vcpu_svm *svm)
{
+ int ret;
+
if (nested_svm_check_permissions(svm))
return 1;
+ /*
+ * If VGIF is enabled, the STGI intercept is only added to
+ * detect the opening of the NMI window; remove it now.
+ */
+ if (vgif_enabled(svm))
+ clr_intercept(svm, INTERCEPT_STGI);
+
svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
- skip_emulated_instruction(&svm->vcpu);
+ ret = kvm_skip_emulated_instruction(&svm->vcpu);
kvm_make_request(KVM_REQ_EVENT, &svm->vcpu);
enable_gif(svm);
- return 1;
+ return ret;
}
static int clgi_interception(struct vcpu_svm *svm)
{
+ int ret;
+
if (nested_svm_check_permissions(svm))
return 1;
svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
- skip_emulated_instruction(&svm->vcpu);
+ ret = kvm_skip_emulated_instruction(&svm->vcpu);
disable_gif(svm);
@@ -3099,7 +3206,7 @@ static int clgi_interception(struct vcpu_svm *svm)
mark_dirty(svm->vmcb, VMCB_INTR);
}
- return 1;
+ return ret;
}
static int invlpga_interception(struct vcpu_svm *svm)
@@ -3113,8 +3220,7 @@ static int invlpga_interception(struct vcpu_svm *svm)
kvm_mmu_invlpg(vcpu, kvm_register_read(&svm->vcpu, VCPU_REGS_RAX));
svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
- skip_emulated_instruction(&svm->vcpu);
- return 1;
+ return kvm_skip_emulated_instruction(&svm->vcpu);
}
static int skinit_interception(struct vcpu_svm *svm)
@@ -3137,7 +3243,7 @@ static int xsetbv_interception(struct vcpu_svm *svm)
if (kvm_set_xcr(&svm->vcpu, index, new_bv) == 0) {
svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
- skip_emulated_instruction(&svm->vcpu);
+ return kvm_skip_emulated_instruction(&svm->vcpu);
}
return 1;
@@ -3233,8 +3339,7 @@ static int invlpg_interception(struct vcpu_svm *svm)
return emulate_instruction(&svm->vcpu, 0) == EMULATE_DONE;
kvm_mmu_invlpg(&svm->vcpu, svm->vmcb->control.exit_info_1);
- skip_emulated_instruction(&svm->vcpu);
- return 1;
+ return kvm_skip_emulated_instruction(&svm->vcpu);
}
static int emulate_on_interception(struct vcpu_svm *svm)
@@ -3384,9 +3489,7 @@ static int dr_interception(struct vcpu_svm *svm)
kvm_register_write(&svm->vcpu, reg, val);
}
- skip_emulated_instruction(&svm->vcpu);
-
- return 1;
+ return kvm_skip_emulated_instruction(&svm->vcpu);
}
static int cr8_write_interception(struct vcpu_svm *svm)
@@ -3509,6 +3612,7 @@ static int rdmsr_interception(struct vcpu_svm *svm)
if (svm_get_msr(&svm->vcpu, &msr_info)) {
trace_kvm_msr_read_ex(ecx);
kvm_inject_gp(&svm->vcpu, 0);
+ return 1;
} else {
trace_kvm_msr_read(ecx, msr_info.data);
@@ -3517,9 +3621,8 @@ static int rdmsr_interception(struct vcpu_svm *svm)
kvm_register_write(&svm->vcpu, VCPU_REGS_RDX,
msr_info.data >> 32);
svm->next_rip = kvm_rip_read(&svm->vcpu) + 2;
- skip_emulated_instruction(&svm->vcpu);
+ return kvm_skip_emulated_instruction(&svm->vcpu);
}
- return 1;
}
static int svm_set_vm_cr(struct kvm_vcpu *vcpu, u64 data)
@@ -3645,11 +3748,11 @@ static int wrmsr_interception(struct vcpu_svm *svm)
if (kvm_set_msr(&svm->vcpu, &msr)) {
trace_kvm_msr_write_ex(ecx, data);
kvm_inject_gp(&svm->vcpu, 0);
+ return 1;
} else {
trace_kvm_msr_write(ecx, data);
- skip_emulated_instruction(&svm->vcpu);
+ return kvm_skip_emulated_instruction(&svm->vcpu);
}
- return 1;
}
static int msr_interception(struct vcpu_svm *svm)
@@ -3672,14 +3775,16 @@ static int interrupt_window_interception(struct vcpu_svm *svm)
static int pause_interception(struct vcpu_svm *svm)
{
- kvm_vcpu_on_spin(&(svm->vcpu));
+ struct kvm_vcpu *vcpu = &svm->vcpu;
+ bool in_kernel = (svm_get_cpl(vcpu) == 0);
+
+ kvm_vcpu_on_spin(vcpu, in_kernel);
return 1;
}
static int nop_interception(struct vcpu_svm *svm)
{
- skip_emulated_instruction(&(svm->vcpu));
- return 1;
+ return kvm_skip_emulated_instruction(&(svm->vcpu));
}
static int monitor_interception(struct vcpu_svm *svm)
@@ -4064,7 +4169,7 @@ static void dump_vmcb(struct kvm_vcpu *vcpu)
pr_err("%-20s%016llx\n", "avic_vapic_bar:", control->avic_vapic_bar);
pr_err("%-20s%08x\n", "event_inj:", control->event_inj);
pr_err("%-20s%08x\n", "event_inj_err:", control->event_inj_err);
- pr_err("%-20s%lld\n", "lbr_ctl:", control->lbr_ctl);
+ pr_err("%-20s%lld\n", "virt_ext:", control->virt_ext);
pr_err("%-20s%016llx\n", "next_rip:", control->next_rip);
pr_err("%-20s%016llx\n", "avic_backing_page:", control->avic_backing_page);
pr_err("%-20s%016llx\n", "avic_logical_id:", control->avic_logical_id);
@@ -4157,8 +4262,6 @@ static int handle_exit(struct kvm_vcpu *vcpu)
trace_kvm_exit(exit_code, vcpu, KVM_ISA_SVM);
- vcpu->arch.gpa_available = (exit_code == SVM_EXIT_NPF);
-
if (!is_cr_intercept(svm, INTERCEPT_CR0_WRITE))
vcpu->arch.cr0 = svm->vmcb->save.cr0;
if (npt_enabled)
@@ -4303,9 +4406,9 @@ static void svm_set_virtual_x2apic_mode(struct kvm_vcpu *vcpu, bool set)
return;
}
-static bool svm_get_enable_apicv(void)
+static bool svm_get_enable_apicv(struct kvm_vcpu *vcpu)
{
- return avic;
+ return avic && irqchip_split(vcpu->kvm);
}
static void svm_hwapic_irr_update(struct kvm_vcpu *vcpu, int max_irr)
@@ -4322,7 +4425,7 @@ static void svm_refresh_apicv_exec_ctrl(struct kvm_vcpu *vcpu)
struct vcpu_svm *svm = to_svm(vcpu);
struct vmcb *vmcb = svm->vmcb;
- if (!avic)
+ if (!kvm_vcpu_apicv_active(&svm->vcpu))
return;
vmcb->control.int_ctl &= ~AVIC_ENABLE_MASK;
@@ -4435,7 +4538,7 @@ get_pi_vcpu_info(struct kvm *kvm, struct kvm_kernel_irq_routing_entry *e,
pr_debug("SVM: %s: use GA mode for irq %u\n", __func__,
irq.vector);
*svm = to_svm(vcpu);
- vcpu_info->pi_desc_addr = page_to_phys((*svm)->avic_backing_page);
+ vcpu_info->pi_desc_addr = __sme_set(page_to_phys((*svm)->avic_backing_page));
vcpu_info->vector = irq.vector;
return 0;
@@ -4486,7 +4589,8 @@ static int svm_update_pi_irte(struct kvm *kvm, unsigned int host_irq,
struct amd_iommu_pi_data pi;
/* Try to enable guest_mode in IRTE */
- pi.base = page_to_phys(svm->avic_backing_page) & AVIC_HPA_MASK;
+ pi.base = __sme_set(page_to_phys(svm->avic_backing_page) &
+ AVIC_HPA_MASK);
pi.ga_tag = AVIC_GATAG(kvm->arch.avic_vm_id,
svm->vcpu.vcpu_id);
pi.is_guest_mode = true;
@@ -4610,9 +4714,11 @@ static void enable_irq_window(struct kvm_vcpu *vcpu)
* In case GIF=0 we can't rely on the CPU to tell us when GIF becomes
* 1, because that's a separate STGI/VMRUN intercept. The next time we
* get that intercept, this function will be called again though and
- * we'll get the vintr intercept.
+ * we'll get the vintr intercept. However, if the vGIF feature is
+ * enabled, the STGI interception will not occur. Enable the irq
+ * window under the assumption that the hardware will set the GIF.
*/
- if (gif_set(svm) && nested_svm_intr(svm)) {
+ if ((vgif_enabled(svm) || gif_set(svm)) && nested_svm_intr(svm)) {
svm_set_vintr(svm);
svm_inject_irq(svm, 0x0);
}
@@ -4626,10 +4732,20 @@ static void enable_nmi_window(struct kvm_vcpu *vcpu)
== HF_NMI_MASK)
return; /* IRET will cause a vm exit */
+ if (!gif_set(svm)) {
+ if (vgif_enabled(svm))
+ set_intercept(svm, INTERCEPT_STGI);
+ return; /* STGI will cause a vm exit */
+ }
+
+ if (svm->nested.exit_required)
+ return; /* we're not going to run the guest yet */
+
/*
* Something prevents NMI from been injected. Single step over possible
* problem (IRET or exception injection or interrupt shadow)
*/
+ svm->nmi_singlestep_guest_rflags = svm_get_rflags(vcpu);
svm->nmi_singlestep = true;
svm->vmcb->save.rflags |= (X86_EFLAGS_TF | X86_EFLAGS_RF);
}
@@ -4770,6 +4886,22 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
if (unlikely(svm->nested.exit_required))
return;
+ /*
+ * Disable singlestep if we're injecting an interrupt/exception.
+ * We don't want our modified rflags to be pushed on the stack where
+ * we might not be able to easily reset them if we disabled NMI
+ * singlestep later.
+ */
+ if (svm->nmi_singlestep && svm->vmcb->control.event_inj) {
+ /*
+ * Event injection happens before external interrupts cause a
+ * vmexit and interrupts are disabled here, so smp_send_reschedule
+ * is enough to force an immediate vmexit.
+ */
+ disable_nmi_singlestep(svm);
+ smp_send_reschedule(vcpu->cpu);
+ }
+
pre_svm_run(svm);
sync_lapic_to_cr8(vcpu);
@@ -4889,7 +5021,7 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
/* if exit due to PF check for async PF */
if (svm->vmcb->control.exit_code == SVM_EXIT_EXCP_BASE + PF_VECTOR)
- svm->apf_reason = kvm_read_and_reset_pf_reason();
+ svm->vcpu.arch.apf.host_apf_reason = kvm_read_and_reset_pf_reason();
if (npt_enabled) {
vcpu->arch.regs_avail &= ~(1 << VCPU_EXREG_PDPTR);
@@ -4906,12 +5038,13 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
mark_all_clean(svm->vmcb);
}
+STACK_FRAME_NON_STANDARD(svm_vcpu_run);
static void svm_set_cr3(struct kvm_vcpu *vcpu, unsigned long root)
{
struct vcpu_svm *svm = to_svm(vcpu);
- svm->vmcb->save.cr3 = root;
+ svm->vmcb->save.cr3 = __sme_set(root);
mark_dirty(svm->vmcb, VMCB_CR);
svm_flush_tlb(vcpu);
}
@@ -4920,7 +5053,7 @@ static void set_tdp_cr3(struct kvm_vcpu *vcpu, unsigned long root)
{
struct vcpu_svm *svm = to_svm(vcpu);
- svm->vmcb->control.nested_cr3 = root;
+ svm->vmcb->control.nested_cr3 = __sme_set(root);
mark_dirty(svm->vmcb, VMCB_NPT);
/* Also sync guest cr3 here in case we live migrate */
@@ -4975,17 +5108,14 @@ static u64 svm_get_mt_mask(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio)
static void svm_cpuid_update(struct kvm_vcpu *vcpu)
{
struct vcpu_svm *svm = to_svm(vcpu);
- struct kvm_cpuid_entry2 *entry;
/* Update nrips enabled cache */
- svm->nrips_enabled = !!guest_cpuid_has_nrips(&svm->vcpu);
+ svm->nrips_enabled = !!guest_cpuid_has(&svm->vcpu, X86_FEATURE_NRIPS);
if (!kvm_vcpu_apicv_active(vcpu))
return;
- entry = kvm_find_cpuid_entry(vcpu, 1, 0);
- if (entry)
- entry->ecx &= ~bit(X86_FEATURE_X2APIC);
+ guest_cpuid_clear(vcpu, X86_FEATURE_X2APIC);
}
static void svm_set_supported_cpuid(u32 func, struct kvm_cpuid_entry2 *entry)
@@ -5183,6 +5313,7 @@ static int svm_check_intercept(struct kvm_vcpu *vcpu,
*/
if (info->rep_prefix != REPE_PREFIX)
goto out;
+ break;
case SVM_EXIT_IOIO: {
u64 exit_info;
u32 bytes;
@@ -5313,8 +5444,6 @@ static struct kvm_x86_ops svm_x86_ops __ro_after_init = {
.get_rflags = svm_get_rflags,
.set_rflags = svm_set_rflags,
- .get_pkru = svm_get_pkru,
-
.tlb_flush = svm_flush_tlb,
.run = svm_vcpu_run,
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index 0a6cc6754ec5..8a202c49e2a0 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -151,8 +151,8 @@ TRACE_EVENT(kvm_fast_mmio,
*/
TRACE_EVENT(kvm_cpuid,
TP_PROTO(unsigned int function, unsigned long rax, unsigned long rbx,
- unsigned long rcx, unsigned long rdx),
- TP_ARGS(function, rax, rbx, rcx, rdx),
+ unsigned long rcx, unsigned long rdx, bool found),
+ TP_ARGS(function, rax, rbx, rcx, rdx, found),
TP_STRUCT__entry(
__field( unsigned int, function )
@@ -160,6 +160,7 @@ TRACE_EVENT(kvm_cpuid,
__field( unsigned long, rbx )
__field( unsigned long, rcx )
__field( unsigned long, rdx )
+ __field( bool, found )
),
TP_fast_assign(
@@ -168,11 +169,13 @@ TRACE_EVENT(kvm_cpuid,
__entry->rbx = rbx;
__entry->rcx = rcx;
__entry->rdx = rdx;
+ __entry->found = found;
),
- TP_printk("func %x rax %lx rbx %lx rcx %lx rdx %lx",
+ TP_printk("func %x rax %lx rbx %lx rcx %lx rdx %lx, cpuid entry %s",
__entry->function, __entry->rax,
- __entry->rbx, __entry->rcx, __entry->rdx)
+ __entry->rbx, __entry->rcx, __entry->rdx,
+ __entry->found ? "found" : "not found")
);
#define AREG(x) { APIC_##x, "APIC_" #x }
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index ca5d2b93385c..95a01609d7ee 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -33,6 +33,7 @@
#include <linux/slab.h>
#include <linux/tboot.h>
#include <linux/hrtimer.h>
+#include <linux/frame.h>
#include "kvm_cache_regs.h"
#include "x86.h"
@@ -48,6 +49,7 @@
#include <asm/kexec.h>
#include <asm/apic.h>
#include <asm/irq_remapping.h>
+#include <asm/mmu_context.h>
#include "trace.h"
#include "pmu.h"
@@ -120,7 +122,7 @@ module_param_named(preemption_timer, enable_preemption_timer, bool, S_IRUGO);
(KVM_VM_CR0_ALWAYS_ON_UNRESTRICTED_GUEST | X86_CR0_PG | X86_CR0_PE)
#define KVM_CR4_GUEST_OWNED_BITS \
(X86_CR4_PVI | X86_CR4_DE | X86_CR4_PCE | X86_CR4_OSFXSR \
- | X86_CR4_OSXMMEXCPT | X86_CR4_TSD)
+ | X86_CR4_OSXMMEXCPT | X86_CR4_LA57 | X86_CR4_TSD)
#define KVM_PMODE_VM_CR4_ALWAYS_ON (X86_CR4_PAE | X86_CR4_VMXE)
#define KVM_RMODE_VM_CR4_ALWAYS_ON (X86_CR4_VME | X86_CR4_PAE | X86_CR4_VMXE)
@@ -196,7 +198,10 @@ struct loaded_vmcs {
struct vmcs *vmcs;
struct vmcs *shadow_vmcs;
int cpu;
- int launched;
+ bool launched;
+ bool nmi_known_unmasked;
+ unsigned long vmcs_host_cr3; /* May not match real cr3 */
+ unsigned long vmcs_host_cr4; /* May not match real cr4 */
struct list_head loaded_vmcss_on_cpu_link;
};
@@ -240,11 +245,13 @@ struct __packed vmcs12 {
u64 virtual_apic_page_addr;
u64 apic_access_addr;
u64 posted_intr_desc_addr;
+ u64 vm_function_control;
u64 ept_pointer;
u64 eoi_exit_bitmap0;
u64 eoi_exit_bitmap1;
u64 eoi_exit_bitmap2;
u64 eoi_exit_bitmap3;
+ u64 eptp_list_address;
u64 xss_exit_bitmap;
u64 guest_physical_address;
u64 vmcs_link_pointer;
@@ -413,13 +420,10 @@ struct nested_vmx {
/* The guest-physical address of the current VMCS L1 keeps for L2 */
gpa_t current_vmptr;
- /* The host-usable pointer to the above */
- struct page *current_vmcs12_page;
- struct vmcs12 *current_vmcs12;
/*
* Cache of the guest's VMCS, existing outside of guest memory.
* Loaded from guest memory during VMPTRLD. Flushed to guest
- * memory during VMXOFF, VMCLEAR, VMPTRLD.
+ * memory during VMCLEAR and VMPTRLD.
*/
struct vmcs12 *cached_vmcs12;
/*
@@ -481,6 +485,7 @@ struct nested_vmx {
u64 nested_vmx_cr4_fixed0;
u64 nested_vmx_cr4_fixed1;
u64 nested_vmx_vmcs_enum;
+ u64 nested_vmx_vmfunc_controls;
};
#define POSTED_INTR_ON 0
@@ -560,7 +565,6 @@ struct vcpu_vmx {
struct kvm_vcpu vcpu;
unsigned long host_rsp;
u8 fail;
- bool nmi_known_unmasked;
u32 exit_intr_info;
u32 idt_vectoring_info;
ulong rflags;
@@ -574,6 +578,8 @@ struct vcpu_vmx {
#endif
u32 vm_entry_controls_shadow;
u32 vm_exit_controls_shadow;
+ u32 secondary_exec_control;
+
/*
* loaded_vmcs points to the VMCS currently used in this vcpu. For a
* non-nested (L1) guest, it always points to vmcs01. For a nested
@@ -596,7 +602,6 @@ struct vcpu_vmx {
int gs_ldt_reload_needed;
int fs_reload_needed;
u64 msr_host_bndcfgs;
- unsigned long vmcs_host_cr4; /* May not match real cr4 */
} host_state;
struct {
int vm86_active;
@@ -636,8 +641,6 @@ struct vcpu_vmx {
u64 current_tsc_ratio;
- bool guest_pkru_valid;
- u32 guest_pkru;
u32 host_pkru;
/*
@@ -763,11 +766,13 @@ static const unsigned short vmcs_field_to_offset_table[] = {
FIELD64(VIRTUAL_APIC_PAGE_ADDR, virtual_apic_page_addr),
FIELD64(APIC_ACCESS_ADDR, apic_access_addr),
FIELD64(POSTED_INTR_DESC_ADDR, posted_intr_desc_addr),
+ FIELD64(VM_FUNCTION_CONTROL, vm_function_control),
FIELD64(EPT_POINTER, ept_pointer),
FIELD64(EOI_EXIT_BITMAP0, eoi_exit_bitmap0),
FIELD64(EOI_EXIT_BITMAP1, eoi_exit_bitmap1),
FIELD64(EOI_EXIT_BITMAP2, eoi_exit_bitmap2),
FIELD64(EOI_EXIT_BITMAP3, eoi_exit_bitmap3),
+ FIELD64(EPTP_LIST_ADDRESS, eptp_list_address),
FIELD64(XSS_EXIT_BITMAP, xss_exit_bitmap),
FIELD64(GUEST_PHYSICAL_ADDRESS, guest_physical_address),
FIELD64(VMCS_LINK_POINTER, vmcs_link_pointer),
@@ -891,27 +896,9 @@ static inline struct vmcs12 *get_vmcs12(struct kvm_vcpu *vcpu)
return to_vmx(vcpu)->nested.cached_vmcs12;
}
-static struct page *nested_get_page(struct kvm_vcpu *vcpu, gpa_t addr)
-{
- struct page *page = kvm_vcpu_gfn_to_page(vcpu, addr >> PAGE_SHIFT);
- if (is_error_page(page))
- return NULL;
-
- return page;
-}
-
-static void nested_release_page(struct page *page)
-{
- kvm_release_page_dirty(page);
-}
-
-static void nested_release_page_clean(struct page *page)
-{
- kvm_release_page_clean(page);
-}
-
+static bool nested_ept_ad_enabled(struct kvm_vcpu *vcpu);
static unsigned long nested_ept_get_cr3(struct kvm_vcpu *vcpu);
-static u64 construct_eptp(unsigned long root_hpa);
+static u64 construct_eptp(struct kvm_vcpu *vcpu, unsigned long root_hpa);
static bool vmx_xsaves_supported(void);
static int vmx_set_tss_addr(struct kvm *kvm, unsigned int addr);
static void vmx_set_segment(struct kvm_vcpu *vcpu,
@@ -923,6 +910,10 @@ static u32 vmx_segment_access_rights(struct kvm_segment *var);
static void copy_vmcs12_to_shadow(struct vcpu_vmx *vmx);
static void copy_shadow_to_vmcs12(struct vcpu_vmx *vmx);
static int alloc_identity_pagetable(struct kvm *kvm);
+static bool vmx_get_nmi_mask(struct kvm_vcpu *vcpu);
+static void vmx_set_nmi_mask(struct kvm_vcpu *vcpu, bool masked);
+static bool nested_vmx_is_page_fault_vmexit(struct vmcs12 *vmcs12,
+ u16 error_code);
static DEFINE_PER_CPU(struct vmcs *, vmxarea);
static DEFINE_PER_CPU(struct vmcs *, current_vmcs);
@@ -1209,6 +1200,16 @@ static inline bool cpu_has_vmx_ept_4levels(void)
return vmx_capability.ept & VMX_EPT_PAGE_WALK_4_BIT;
}
+static inline bool cpu_has_vmx_ept_mt_wb(void)
+{
+ return vmx_capability.ept & VMX_EPTP_WB_BIT;
+}
+
+static inline bool cpu_has_vmx_ept_5levels(void)
+{
+ return vmx_capability.ept & VMX_EPT_PAGE_WALK_5_BIT;
+}
+
static inline bool cpu_has_vmx_ept_ad_bits(void)
{
return vmx_capability.ept & VMX_EPT_AD_BIT;
@@ -1314,6 +1315,12 @@ static inline bool cpu_has_vmx_tsc_scaling(void)
SECONDARY_EXEC_TSC_SCALING;
}
+static inline bool cpu_has_vmx_vmfunc(void)
+{
+ return vmcs_config.cpu_based_2nd_exec_ctrl &
+ SECONDARY_EXEC_ENABLE_VMFUNC;
+}
+
static inline bool report_flexpriority(void)
{
return flexpriority_enabled;
@@ -1354,8 +1361,7 @@ static inline int nested_cpu_has_ept(struct vmcs12 *vmcs12)
static inline bool nested_cpu_has_xsaves(struct vmcs12 *vmcs12)
{
- return nested_cpu_has2(vmcs12, SECONDARY_EXEC_XSAVES) &&
- vmx_xsaves_supported();
+ return nested_cpu_has2(vmcs12, SECONDARY_EXEC_XSAVES);
}
static inline bool nested_cpu_has_pml(struct vmcs12 *vmcs12)
@@ -1388,6 +1394,18 @@ static inline bool nested_cpu_has_posted_intr(struct vmcs12 *vmcs12)
return vmcs12->pin_based_vm_exec_control & PIN_BASED_POSTED_INTR;
}
+static inline bool nested_cpu_has_vmfunc(struct vmcs12 *vmcs12)
+{
+ return nested_cpu_has2(vmcs12, SECONDARY_EXEC_ENABLE_VMFUNC);
+}
+
+static inline bool nested_cpu_has_eptp_switching(struct vmcs12 *vmcs12)
+{
+ return nested_cpu_has_vmfunc(vmcs12) &&
+ (vmcs12->vm_function_control &
+ VMX_VMFUNC_EPTP_SWITCHING);
+}
+
static inline bool is_nmi(u32 intr_info)
{
return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VALID_MASK))
@@ -2184,46 +2202,44 @@ static void vmx_vcpu_pi_load(struct kvm_vcpu *vcpu, int cpu)
struct pi_desc old, new;
unsigned int dest;
- if (!kvm_arch_has_assigned_device(vcpu->kvm) ||
- !irq_remapping_cap(IRQ_POSTING_CAP) ||
- !kvm_vcpu_apicv_active(vcpu))
+ /*
+ * In case of hot-plug or hot-unplug, we may have to undo
+ * vmx_vcpu_pi_put even if there is no assigned device. And we
+ * always keep PI.NDST up to date for simplicity: it makes the
+ * code easier, and CPU migration is not a fast path.
+ */
+ if (!pi_test_sn(pi_desc) && vcpu->cpu == cpu)
+ return;
+
+ /*
+ * First handle the simple case where no cmpxchg is necessary; just
+ * allow posting non-urgent interrupts.
+ *
+ * If the 'nv' field is POSTED_INTR_WAKEUP_VECTOR, do not change
+ * PI.NDST: pi_post_block will do it for us and the wakeup_handler
+ * expects the VCPU to be on the blocked_vcpu_list that matches
+ * PI.NDST.
+ */
+ if (pi_desc->nv == POSTED_INTR_WAKEUP_VECTOR ||
+ vcpu->cpu == cpu) {
+ pi_clear_sn(pi_desc);
return;
+ }
+ /* The full case. */
do {
old.control = new.control = pi_desc->control;
- /*
- * If 'nv' field is POSTED_INTR_WAKEUP_VECTOR, there
- * are two possible cases:
- * 1. After running 'pre_block', context switch
- * happened. For this case, 'sn' was set in
- * vmx_vcpu_put(), so we need to clear it here.
- * 2. After running 'pre_block', we were blocked,
- * and woken up by some other guy. For this case,
- * we don't need to do anything, 'pi_post_block'
- * will do everything for us. However, we cannot
- * check whether it is case #1 or case #2 here
- * (maybe, not needed), so we also clear sn here,
- * I think it is not a big deal.
- */
- if (pi_desc->nv != POSTED_INTR_WAKEUP_VECTOR) {
- if (vcpu->cpu != cpu) {
- dest = cpu_physical_id(cpu);
-
- if (x2apic_enabled())
- new.ndst = dest;
- else
- new.ndst = (dest << 8) & 0xFF00;
- }
+ dest = cpu_physical_id(cpu);
- /* set 'NV' to 'notification vector' */
- new.nv = POSTED_INTR_VECTOR;
- }
+ if (x2apic_enabled())
+ new.ndst = dest;
+ else
+ new.ndst = (dest << 8) & 0xFF00;
- /* Allow posting non-urgent interrupts */
new.sn = 0;
- } while (cmpxchg(&pi_desc->control, old.control,
- new.control) != old.control);
+ } while (cmpxchg64(&pi_desc->control, old.control,
+ new.control) != old.control);
}
static void decache_tsc_multiplier(struct vcpu_vmx *vmx)
@@ -2322,6 +2338,11 @@ static void vmx_vcpu_put(struct kvm_vcpu *vcpu)
__vmx_load_host_state(to_vmx(vcpu));
}
+static bool emulation_required(struct kvm_vcpu *vcpu)
+{
+ return emulate_invalid_guest_state && !guest_state_valid(vcpu);
+}
+
static void vmx_decache_cr0_guest_bits(struct kvm_vcpu *vcpu);
/*
@@ -2359,6 +2380,8 @@ static unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu)
static void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
{
+ unsigned long old_rflags = vmx_get_rflags(vcpu);
+
__set_bit(VCPU_EXREG_RFLAGS, (ulong *)&vcpu->arch.regs_avail);
to_vmx(vcpu)->rflags = rflags;
if (to_vmx(vcpu)->rmode.vm86_active) {
@@ -2366,11 +2389,9 @@ static void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
rflags |= X86_EFLAGS_IOPL | X86_EFLAGS_VM;
}
vmcs_writel(GUEST_RFLAGS, rflags);
-}
-static u32 vmx_get_pkru(struct kvm_vcpu *vcpu)
-{
- return to_vmx(vcpu)->guest_pkru;
+ if ((old_rflags ^ to_vmx(vcpu)->rflags) & X86_EFLAGS_VM)
+ to_vmx(vcpu)->emulation_required = emulation_required(vcpu);
}
static u32 vmx_get_interrupt_shadow(struct kvm_vcpu *vcpu)
@@ -2414,34 +2435,79 @@ static void skip_emulated_instruction(struct kvm_vcpu *vcpu)
vmx_set_interrupt_shadow(vcpu, 0);
}
+static void nested_vmx_inject_exception_vmexit(struct kvm_vcpu *vcpu,
+ unsigned long exit_qual)
+{
+ struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
+ unsigned int nr = vcpu->arch.exception.nr;
+ u32 intr_info = nr | INTR_INFO_VALID_MASK;
+
+ if (vcpu->arch.exception.has_error_code) {
+ vmcs12->vm_exit_intr_error_code = vcpu->arch.exception.error_code;
+ intr_info |= INTR_INFO_DELIVER_CODE_MASK;
+ }
+
+ if (kvm_exception_is_soft(nr))
+ intr_info |= INTR_TYPE_SOFT_EXCEPTION;
+ else
+ intr_info |= INTR_TYPE_HARD_EXCEPTION;
+
+ if (!(vmcs12->idt_vectoring_info_field & VECTORING_INFO_VALID_MASK) &&
+ vmx_get_nmi_mask(vcpu))
+ intr_info |= INTR_INFO_UNBLOCK_NMI;
+
+ nested_vmx_vmexit(vcpu, EXIT_REASON_EXCEPTION_NMI, intr_info, exit_qual);
+}
+
/*
* KVM wants to inject page-faults which it got to the guest. This function
* checks whether in a nested guest, we need to inject them to L1 or L2.
*/
-static int nested_vmx_check_exception(struct kvm_vcpu *vcpu, unsigned nr)
+static int nested_vmx_check_exception(struct kvm_vcpu *vcpu, unsigned long *exit_qual)
{
struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
+ unsigned int nr = vcpu->arch.exception.nr;
- if (!(vmcs12->exception_bitmap & (1u << nr)))
- return 0;
+ if (nr == PF_VECTOR) {
+ if (vcpu->arch.exception.nested_apf) {
+ *exit_qual = vcpu->arch.apf.nested_apf_token;
+ return 1;
+ }
+ /*
+ * FIXME: we must not write CR2 when L1 intercepts an L2 #PF exception.
+ * The fix is to add the ancillary datum (CR2 or DR6) to structs
+ * kvm_queued_exception and kvm_vcpu_events, so that CR2 and DR6
+ * can be written only when inject_pending_event runs. This should be
+ * conditional on a new capability---if the capability is disabled,
+ * kvm_multiple_exception would write the ancillary information to
+ * CR2 or DR6, for backwards ABI-compatibility.
+ */
+ if (nested_vmx_is_page_fault_vmexit(vmcs12,
+ vcpu->arch.exception.error_code)) {
+ *exit_qual = vcpu->arch.cr2;
+ return 1;
+ }
+ } else {
+ if (vmcs12->exception_bitmap & (1u << nr)) {
+ if (nr == DB_VECTOR)
+ *exit_qual = vcpu->arch.dr6;
+ else
+ *exit_qual = 0;
+ return 1;
+ }
+ }
- nested_vmx_vmexit(vcpu, EXIT_REASON_EXCEPTION_NMI,
- vmcs_read32(VM_EXIT_INTR_INFO),
- vmcs_readl(EXIT_QUALIFICATION));
- return 1;
+ return 0;
}
-static void vmx_queue_exception(struct kvm_vcpu *vcpu, unsigned nr,
- bool has_error_code, u32 error_code,
- bool reinject)
+static void vmx_queue_exception(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
+ unsigned nr = vcpu->arch.exception.nr;
+ bool has_error_code = vcpu->arch.exception.has_error_code;
+ u32 error_code = vcpu->arch.exception.error_code;
u32 intr_info = nr | INTR_INFO_VALID_MASK;
- if (!reinject && is_guest_mode(vcpu) &&
- nested_vmx_check_exception(vcpu, nr))
- return;
-
if (has_error_code) {
vmcs_write32(VM_ENTRY_EXCEPTION_ERROR_CODE, error_code);
intr_info |= INTR_INFO_DELIVER_CODE_MASK;
@@ -2540,7 +2606,7 @@ static void setup_msrs(struct vcpu_vmx *vmx)
if (index >= 0)
move_msr_up(vmx, index, save_nmsrs++);
index = __find_msr_index(vmx, MSR_TSC_AUX);
- if (index >= 0 && guest_cpuid_has_rdtscp(&vmx->vcpu))
+ if (index >= 0 && guest_cpuid_has(&vmx->vcpu, X86_FEATURE_RDTSCP))
move_msr_up(vmx, index, save_nmsrs++);
/*
* MSR_STAR is only needed on long mode guests, and only
@@ -2600,12 +2666,6 @@ static void vmx_write_tsc_offset(struct kvm_vcpu *vcpu, u64 offset)
}
}
-static bool guest_cpuid_has_vmx(struct kvm_vcpu *vcpu)
-{
- struct kvm_cpuid_entry2 *best = kvm_find_cpuid_entry(vcpu, 1, 0);
- return best && (best->ecx & (1 << (X86_FEATURE_VMX & 31)));
-}
-
/*
* nested_vmx_allowed() checks whether a guest should be allowed to use VMX
* instructions and MSRs (i.e., nested VMX). Nested VMX is disabled for
@@ -2614,7 +2674,7 @@ static bool guest_cpuid_has_vmx(struct kvm_vcpu *vcpu)
*/
static inline bool nested_vmx_allowed(struct kvm_vcpu *vcpu)
{
- return nested && guest_cpuid_has_vmx(vcpu);
+ return nested && guest_cpuid_has(vcpu, X86_FEATURE_VMX);
}
/*
@@ -2640,7 +2700,7 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
* reason is that if one of these bits is necessary, it will appear
* in vmcs01 and prepare_vmcs02, when it bitwise-or's the control
* fields of vmcs01 and vmcs02, will turn these bits off - and
- * nested_vmx_exit_handled() will not pass related exits to L1.
+ * nested_vmx_exit_reflected() will not pass related exits to L1.
* These rules have exceptions below.
*/
@@ -2737,21 +2797,21 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
vmx->nested.nested_vmx_procbased_ctls_low &=
~(CPU_BASED_CR3_LOAD_EXITING | CPU_BASED_CR3_STORE_EXITING);
- /* secondary cpu-based controls */
+ /*
+ * secondary cpu-based controls. Do not include those that
+ * depend on CPUID bits, they are added later by vmx_cpuid_update.
+ */
rdmsr(MSR_IA32_VMX_PROCBASED_CTLS2,
vmx->nested.nested_vmx_secondary_ctls_low,
vmx->nested.nested_vmx_secondary_ctls_high);
vmx->nested.nested_vmx_secondary_ctls_low = 0;
vmx->nested.nested_vmx_secondary_ctls_high &=
- SECONDARY_EXEC_RDRAND | SECONDARY_EXEC_RDSEED |
SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES |
- SECONDARY_EXEC_RDTSCP |
SECONDARY_EXEC_DESC |
SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE |
SECONDARY_EXEC_APIC_REGISTER_VIRT |
SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY |
- SECONDARY_EXEC_WBINVD_EXITING |
- SECONDARY_EXEC_XSAVES;
+ SECONDARY_EXEC_WBINVD_EXITING;
if (enable_ept) {
/* nested EPT: emulate EPT also to L1 */
@@ -2769,11 +2829,22 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
if (enable_ept_ad_bits) {
vmx->nested.nested_vmx_secondary_ctls_high |=
SECONDARY_EXEC_ENABLE_PML;
- vmx->nested.nested_vmx_ept_caps |= VMX_EPT_AD_BIT;
+ vmx->nested.nested_vmx_ept_caps |= VMX_EPT_AD_BIT;
}
} else
vmx->nested.nested_vmx_ept_caps = 0;
+ if (cpu_has_vmx_vmfunc()) {
+ vmx->nested.nested_vmx_secondary_ctls_high |=
+ SECONDARY_EXEC_ENABLE_VMFUNC;
+ /*
+ * Advertise EPTP switching unconditionally
+ * since we emulate it
+ */
+ vmx->nested.nested_vmx_vmfunc_controls =
+ VMX_VMFUNC_EPTP_SWITCHING;
+ }
+
/*
* Old versions of KVM use the single-context version without
* checking for support, so declare that it is supported even
@@ -3143,6 +3214,9 @@ static int vmx_get_vmx_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata)
*pdata = vmx->nested.nested_vmx_ept_caps |
((u64)vmx->nested.nested_vmx_vpid_caps << 32);
break;
+ case MSR_IA32_VMX_VMFUNC:
+ *pdata = vmx->nested.nested_vmx_vmfunc_controls;
+ break;
default:
return 1;
}
@@ -3195,7 +3269,9 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
msr_info->data = vmcs_readl(GUEST_SYSENTER_ESP);
break;
case MSR_IA32_BNDCFGS:
- if (!kvm_mpx_supported())
+ if (!kvm_mpx_supported() ||
+ (!msr_info->host_initiated &&
+ !guest_cpuid_has(vcpu, X86_FEATURE_MPX)))
return 1;
msr_info->data = vmcs_read64(GUEST_BNDCFGS);
break;
@@ -3219,7 +3295,8 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
msr_info->data = vcpu->arch.ia32_xss;
break;
case MSR_TSC_AUX:
- if (!guest_cpuid_has_rdtscp(vcpu) && !msr_info->host_initiated)
+ if (!msr_info->host_initiated &&
+ !guest_cpuid_has(vcpu, X86_FEATURE_RDTSCP))
return 1;
/* Otherwise falls through */
default:
@@ -3277,7 +3354,12 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
vmcs_writel(GUEST_SYSENTER_ESP, data);
break;
case MSR_IA32_BNDCFGS:
- if (!kvm_mpx_supported())
+ if (!kvm_mpx_supported() ||
+ (!msr_info->host_initiated &&
+ !guest_cpuid_has(vcpu, X86_FEATURE_MPX)))
+ return 1;
+ if (is_noncanonical_address(data & PAGE_MASK, vcpu) ||
+ (data & MSR_IA32_BNDCFGS_RSVD))
return 1;
vmcs_write64(GUEST_BNDCFGS, data);
break;
@@ -3337,7 +3419,8 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
clear_atomic_switch_msr(vmx, MSR_IA32_XSS);
break;
case MSR_TSC_AUX:
- if (!guest_cpuid_has_rdtscp(vcpu) && !msr_info->host_initiated)
+ if (!msr_info->host_initiated &&
+ !guest_cpuid_has(vcpu, X86_FEATURE_RDTSCP))
return 1;
/* Check reserved bit, higher 32 bits should be zero */
if ((data >> 32) != 0)
@@ -3574,8 +3657,11 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY |
SECONDARY_EXEC_SHADOW_VMCS |
SECONDARY_EXEC_XSAVES |
+ SECONDARY_EXEC_RDSEED |
+ SECONDARY_EXEC_RDRAND |
SECONDARY_EXEC_ENABLE_PML |
- SECONDARY_EXEC_TSC_SCALING;
+ SECONDARY_EXEC_TSC_SCALING |
+ SECONDARY_EXEC_ENABLE_VMFUNC;
if (adjust_vmx_controls(min2, opt2,
MSR_IA32_VMX_PROCBASED_CTLS2,
&_cpu_based_2nd_exec_control) < 0)
@@ -3755,6 +3841,25 @@ static void free_kvm_area(void)
}
}
+enum vmcs_field_type {
+ VMCS_FIELD_TYPE_U16 = 0,
+ VMCS_FIELD_TYPE_U64 = 1,
+ VMCS_FIELD_TYPE_U32 = 2,
+ VMCS_FIELD_TYPE_NATURAL_WIDTH = 3
+};
+
+static inline int vmcs_field_type(unsigned long field)
+{
+ if (0x1 & field) /* the *_HIGH fields are all 32 bit */
+ return VMCS_FIELD_TYPE_U32;
+ return (field >> 13) & 0x3 ;
+}
+
+static inline int vmcs_field_readonly(unsigned long field)
+{
+ return (((field >> 10) & 0x3) == 1);
+}
+
static void init_vmcs_shadow_fields(void)
{
int i, j;
@@ -3780,14 +3885,22 @@ static void init_vmcs_shadow_fields(void)
/* shadowed fields guest access without vmexit */
for (i = 0; i < max_shadow_read_write_fields; i++) {
- clear_bit(shadow_read_write_fields[i],
- vmx_vmwrite_bitmap);
- clear_bit(shadow_read_write_fields[i],
- vmx_vmread_bitmap);
+ unsigned long field = shadow_read_write_fields[i];
+
+ clear_bit(field, vmx_vmwrite_bitmap);
+ clear_bit(field, vmx_vmread_bitmap);
+ if (vmcs_field_type(field) == VMCS_FIELD_TYPE_U64) {
+ clear_bit(field + 1, vmx_vmwrite_bitmap);
+ clear_bit(field + 1, vmx_vmread_bitmap);
+ }
+ }
+ for (i = 0; i < max_shadow_read_only_fields; i++) {
+ unsigned long field = shadow_read_only_fields[i];
+
+ clear_bit(field, vmx_vmread_bitmap);
+ if (vmcs_field_type(field) == VMCS_FIELD_TYPE_U64)
+ clear_bit(field + 1, vmx_vmread_bitmap);
}
- for (i = 0; i < max_shadow_read_only_fields; i++)
- clear_bit(shadow_read_only_fields[i],
- vmx_vmread_bitmap);
}
static __init int alloc_kvm_area(void)
@@ -3808,11 +3921,6 @@ static __init int alloc_kvm_area(void)
return 0;
}
-static bool emulation_required(struct kvm_vcpu *vcpu)
-{
- return emulate_invalid_guest_state && !guest_state_valid(vcpu);
-}
-
static void fix_pmode_seg(struct kvm_vcpu *vcpu, int seg,
struct kvm_segment *save)
{
@@ -4010,7 +4118,7 @@ static inline void __vmx_flush_tlb(struct kvm_vcpu *vcpu, int vpid)
if (enable_ept) {
if (!VALID_PAGE(vcpu->arch.mmu.root_hpa))
return;
- ept_sync_context(construct_eptp(vcpu->arch.mmu.root_hpa));
+ ept_sync_context(construct_eptp(vcpu, vcpu->arch.mmu.root_hpa));
} else {
vpid_sync_context(vpid);
}
@@ -4185,15 +4293,22 @@ static void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
vmx->emulation_required = emulation_required(vcpu);
}
-static u64 construct_eptp(unsigned long root_hpa)
+static int get_ept_level(struct kvm_vcpu *vcpu)
{
- u64 eptp;
+ if (cpu_has_vmx_ept_5levels() && (cpuid_maxphyaddr(vcpu) > 48))
+ return 5;
+ return 4;
+}
- /* TODO write the value reading from MSR */
- eptp = VMX_EPT_DEFAULT_MT |
- VMX_EPT_DEFAULT_GAW << VMX_EPT_GAW_EPTP_SHIFT;
- if (enable_ept_ad_bits)
- eptp |= VMX_EPT_AD_ENABLE_BIT;
+static u64 construct_eptp(struct kvm_vcpu *vcpu, unsigned long root_hpa)
+{
+ u64 eptp = VMX_EPTP_MT_WB;
+
+ eptp |= (get_ept_level(vcpu) == 5) ? VMX_EPTP_PWL_5 : VMX_EPTP_PWL_4;
+
+ if (enable_ept_ad_bits &&
+ (!is_guest_mode(vcpu) || nested_ept_ad_enabled(vcpu)))
+ eptp |= VMX_EPTP_AD_ENABLE_BIT;
eptp |= (root_hpa & PAGE_MASK);
return eptp;
@@ -4206,7 +4321,7 @@ static void vmx_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
guest_cr3 = cr3;
if (enable_ept) {
- eptp = construct_eptp(cr3);
+ eptp = construct_eptp(vcpu, cr3);
vmcs_write64(EPT_POINTER, eptp);
if (is_paging(vcpu) || is_guest_mode(vcpu))
guest_cr3 = kvm_read_cr3(vcpu);
@@ -4624,6 +4739,11 @@ static bool guest_state_valid(struct kvm_vcpu *vcpu)
return true;
}
+static bool page_address_valid(struct kvm_vcpu *vcpu, gpa_t gpa)
+{
+ return PAGE_ALIGNED(gpa) && !(gpa >> cpuid_maxphyaddr(vcpu));
+}
+
static int init_rmode_tss(struct kvm *kvm)
{
gfn_t fn;
@@ -4890,11 +5010,33 @@ static void vmx_disable_intercept_msr_x2apic(u32 msr, int type, bool apicv_activ
}
}
-static bool vmx_get_enable_apicv(void)
+static bool vmx_get_enable_apicv(struct kvm_vcpu *vcpu)
{
return enable_apicv;
}
+static void nested_mark_vmcs12_pages_dirty(struct kvm_vcpu *vcpu)
+{
+ struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
+ gfn_t gfn;
+
+ /*
+ * Don't need to mark the APIC access page dirty; it is never
+ * written to by the CPU during APIC virtualization.
+ */
+
+ if (nested_cpu_has(vmcs12, CPU_BASED_TPR_SHADOW)) {
+ gfn = vmcs12->virtual_apic_page_addr >> PAGE_SHIFT;
+ kvm_vcpu_mark_page_dirty(vcpu, gfn);
+ }
+
+ if (nested_cpu_has_posted_intr(vmcs12)) {
+ gfn = vmcs12->posted_intr_desc_addr >> PAGE_SHIFT;
+ kvm_vcpu_mark_page_dirty(vcpu, gfn);
+ }
+}
+
+
static void vmx_complete_nested_posted_interrupt(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
@@ -4902,18 +5044,15 @@ static void vmx_complete_nested_posted_interrupt(struct kvm_vcpu *vcpu)
void *vapic_page;
u16 status;
- if (vmx->nested.pi_desc &&
- vmx->nested.pi_pending) {
- vmx->nested.pi_pending = false;
- if (!pi_test_and_clear_on(vmx->nested.pi_desc))
- return;
-
- max_irr = find_last_bit(
- (unsigned long *)vmx->nested.pi_desc->pir, 256);
+ if (!vmx->nested.pi_desc || !vmx->nested.pi_pending)
+ return;
- if (max_irr == 256)
- return;
+ vmx->nested.pi_pending = false;
+ if (!pi_test_and_clear_on(vmx->nested.pi_desc))
+ return;
+ max_irr = find_last_bit((unsigned long *)vmx->nested.pi_desc->pir, 256);
+ if (max_irr != 256) {
vapic_page = kmap(vmx->nested.virtual_apic_page);
__kvm_apic_update_irr(vmx->nested.pi_desc->pir, vapic_page);
kunmap(vmx->nested.virtual_apic_page);
@@ -4925,30 +5064,43 @@ static void vmx_complete_nested_posted_interrupt(struct kvm_vcpu *vcpu)
vmcs_write16(GUEST_INTR_STATUS, status);
}
}
+
+ nested_mark_vmcs12_pages_dirty(vcpu);
}
-static inline bool kvm_vcpu_trigger_posted_interrupt(struct kvm_vcpu *vcpu)
+static inline bool kvm_vcpu_trigger_posted_interrupt(struct kvm_vcpu *vcpu,
+ bool nested)
{
#ifdef CONFIG_SMP
- if (vcpu->mode == IN_GUEST_MODE) {
- struct vcpu_vmx *vmx = to_vmx(vcpu);
+ int pi_vec = nested ? POSTED_INTR_NESTED_VECTOR : POSTED_INTR_VECTOR;
+ if (vcpu->mode == IN_GUEST_MODE) {
/*
- * Currently, we don't support urgent interrupt,
- * all interrupts are recognized as non-urgent
- * interrupt, so we cannot post interrupts when
- * 'SN' is set.
+ * The vector of interrupt to be delivered to vcpu had
+ * been set in PIR before this function.
+ *
+ * Following cases will be reached in this block, and
+ * we always send a notification event in all cases as
+ * explained below.
+ *
+ * Case 1: vcpu keeps in non-root mode. Sending a
+ * notification event posts the interrupt to vcpu.
+ *
+ * Case 2: vcpu exits to root mode and is still
+ * runnable. PIR will be synced to vIRR before the
+ * next vcpu entry. Sending a notification event in
+ * this case has no effect, as vcpu is not in root
+ * mode.
*
- * If the vcpu is in guest mode, it means it is
- * running instead of being scheduled out and
- * waiting in the run queue, and that's the only
- * case when 'SN' is set currently, warning if
- * 'SN' is set.
+ * Case 3: vcpu exits to root mode and is blocked.
+ * vcpu_block() has already synced PIR to vIRR and
+ * never blocks vcpu if vIRR is not cleared. Therefore,
+ * a blocked vcpu here does not wait for any requested
+ * interrupts in PIR, and sending a notification event
+ * which has no effect is safe here.
*/
- WARN_ON_ONCE(pi_test_sn(&vmx->pi_desc));
- apic->send_IPI_mask(get_cpu_mask(vcpu->cpu),
- POSTED_INTR_VECTOR);
+ apic->send_IPI_mask(get_cpu_mask(vcpu->cpu), pi_vec);
return true;
}
#endif
@@ -4963,7 +5115,7 @@ static int vmx_deliver_nested_posted_interrupt(struct kvm_vcpu *vcpu,
if (is_guest_mode(vcpu) &&
vector == vmx->nested.posted_intr_nv) {
/* the PIR and ON have been set by L1. */
- kvm_vcpu_trigger_posted_interrupt(vcpu);
+ kvm_vcpu_trigger_posted_interrupt(vcpu, true);
/*
* If a posted intr is not recognized by hardware,
* we will accomplish it in the next vmentry.
@@ -4997,7 +5149,7 @@ static void vmx_deliver_posted_interrupt(struct kvm_vcpu *vcpu, int vector)
if (pi_test_and_set_on(&vmx->pi_desc))
return;
- if (!kvm_vcpu_trigger_posted_interrupt(vcpu))
+ if (!kvm_vcpu_trigger_posted_interrupt(vcpu, false))
kvm_vcpu_kick(vcpu);
}
@@ -5012,17 +5164,24 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
u32 low32, high32;
unsigned long tmpl;
struct desc_ptr dt;
- unsigned long cr0, cr4;
+ unsigned long cr0, cr3, cr4;
cr0 = read_cr0();
WARN_ON(cr0 & X86_CR0_TS);
vmcs_writel(HOST_CR0, cr0); /* 22.2.3 */
- vmcs_writel(HOST_CR3, read_cr3()); /* 22.2.3 FIXME: shadow tables */
+
+ /*
+ * Save the most likely value for this task's CR3 in the VMCS.
+ * We can't use __get_current_cr3_fast() because we're not atomic.
+ */
+ cr3 = __read_cr3();
+ vmcs_writel(HOST_CR3, cr3); /* 22.2.3 FIXME: shadow tables */
+ vmx->loaded_vmcs->vmcs_host_cr3 = cr3;
/* Save the most likely value for this task's CR4 in the VMCS. */
cr4 = cr4_read_shadow();
vmcs_writel(HOST_CR4, cr4); /* 22.2.3, 22.2.5 */
- vmx->host_state.vmcs_host_cr4 = cr4;
+ vmx->loaded_vmcs->vmcs_host_cr4 = cr4;
vmcs_write16(HOST_CS_SELECTOR, __KERNEL_CS); /* 22.2.4 */
#ifdef CONFIG_X86_64
@@ -5040,7 +5199,7 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
vmcs_write16(HOST_SS_SELECTOR, __KERNEL_DS); /* 22.2.4 */
vmcs_write16(HOST_TR_SELECTOR, GDT_ENTRY_TSS*8); /* 22.2.4 */
- native_store_idt(&dt);
+ store_idt(&dt);
vmcs_writel(HOST_IDTR_BASE, dt.address); /* 22.2.4 */
vmx->host_idt_base = dt.address;
@@ -5120,10 +5279,24 @@ static u32 vmx_exec_control(struct vcpu_vmx *vmx)
return exec_control;
}
-static u32 vmx_secondary_exec_control(struct vcpu_vmx *vmx)
+static bool vmx_rdrand_supported(void)
{
+ return vmcs_config.cpu_based_2nd_exec_ctrl &
+ SECONDARY_EXEC_RDRAND;
+}
+
+static bool vmx_rdseed_supported(void)
+{
+ return vmcs_config.cpu_based_2nd_exec_ctrl &
+ SECONDARY_EXEC_RDSEED;
+}
+
+static void vmx_compute_secondary_exec_control(struct vcpu_vmx *vmx)
+{
+ struct kvm_vcpu *vcpu = &vmx->vcpu;
+
u32 exec_control = vmcs_config.cpu_based_2nd_exec_ctrl;
- if (!cpu_need_virtualize_apic_accesses(&vmx->vcpu))
+ if (!cpu_need_virtualize_apic_accesses(vcpu))
exec_control &= ~SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES;
if (vmx->vpid == 0)
exec_control &= ~SECONDARY_EXEC_ENABLE_VPID;
@@ -5137,7 +5310,7 @@ static u32 vmx_secondary_exec_control(struct vcpu_vmx *vmx)
exec_control &= ~SECONDARY_EXEC_UNRESTRICTED_GUEST;
if (!ple_gap)
exec_control &= ~SECONDARY_EXEC_PAUSE_LOOP_EXITING;
- if (!kvm_vcpu_apicv_active(&vmx->vcpu))
+ if (!kvm_vcpu_apicv_active(vcpu))
exec_control &= ~(SECONDARY_EXEC_APIC_REGISTER_VIRT |
SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY);
exec_control &= ~SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE;
@@ -5151,7 +5324,92 @@ static u32 vmx_secondary_exec_control(struct vcpu_vmx *vmx)
if (!enable_pml)
exec_control &= ~SECONDARY_EXEC_ENABLE_PML;
- return exec_control;
+ if (vmx_xsaves_supported()) {
+ /* Exposing XSAVES only when XSAVE is exposed */
+ bool xsaves_enabled =
+ guest_cpuid_has(vcpu, X86_FEATURE_XSAVE) &&
+ guest_cpuid_has(vcpu, X86_FEATURE_XSAVES);
+
+ if (!xsaves_enabled)
+ exec_control &= ~SECONDARY_EXEC_XSAVES;
+
+ if (nested) {
+ if (xsaves_enabled)
+ vmx->nested.nested_vmx_secondary_ctls_high |=
+ SECONDARY_EXEC_XSAVES;
+ else
+ vmx->nested.nested_vmx_secondary_ctls_high &=
+ ~SECONDARY_EXEC_XSAVES;
+ }
+ }
+
+ if (vmx_rdtscp_supported()) {
+ bool rdtscp_enabled = guest_cpuid_has(vcpu, X86_FEATURE_RDTSCP);
+ if (!rdtscp_enabled)
+ exec_control &= ~SECONDARY_EXEC_RDTSCP;
+
+ if (nested) {
+ if (rdtscp_enabled)
+ vmx->nested.nested_vmx_secondary_ctls_high |=
+ SECONDARY_EXEC_RDTSCP;
+ else
+ vmx->nested.nested_vmx_secondary_ctls_high &=
+ ~SECONDARY_EXEC_RDTSCP;
+ }
+ }
+
+ if (vmx_invpcid_supported()) {
+ /* Exposing INVPCID only when PCID is exposed */
+ bool invpcid_enabled =
+ guest_cpuid_has(vcpu, X86_FEATURE_INVPCID) &&
+ guest_cpuid_has(vcpu, X86_FEATURE_PCID);
+
+ if (!invpcid_enabled) {
+ exec_control &= ~SECONDARY_EXEC_ENABLE_INVPCID;
+ guest_cpuid_clear(vcpu, X86_FEATURE_INVPCID);
+ }
+
+ if (nested) {
+ if (invpcid_enabled)
+ vmx->nested.nested_vmx_secondary_ctls_high |=
+ SECONDARY_EXEC_ENABLE_INVPCID;
+ else
+ vmx->nested.nested_vmx_secondary_ctls_high &=
+ ~SECONDARY_EXEC_ENABLE_INVPCID;
+ }
+ }
+
+ if (vmx_rdrand_supported()) {
+ bool rdrand_enabled = guest_cpuid_has(vcpu, X86_FEATURE_RDRAND);
+ if (rdrand_enabled)
+ exec_control &= ~SECONDARY_EXEC_RDRAND;
+
+ if (nested) {
+ if (rdrand_enabled)
+ vmx->nested.nested_vmx_secondary_ctls_high |=
+ SECONDARY_EXEC_RDRAND;
+ else
+ vmx->nested.nested_vmx_secondary_ctls_high &=
+ ~SECONDARY_EXEC_RDRAND;
+ }
+ }
+
+ if (vmx_rdseed_supported()) {
+ bool rdseed_enabled = guest_cpuid_has(vcpu, X86_FEATURE_RDSEED);
+ if (rdseed_enabled)
+ exec_control &= ~SECONDARY_EXEC_RDSEED;
+
+ if (nested) {
+ if (rdseed_enabled)
+ vmx->nested.nested_vmx_secondary_ctls_high |=
+ SECONDARY_EXEC_RDSEED;
+ else
+ vmx->nested.nested_vmx_secondary_ctls_high &=
+ ~SECONDARY_EXEC_RDSEED;
+ }
+ }
+
+ vmx->secondary_exec_control = exec_control;
}
static void ept_set_mmio_spte_mask(void)
@@ -5160,7 +5418,8 @@ static void ept_set_mmio_spte_mask(void)
* EPT Misconfigurations can be generated if the value of bits 2:0
* of an EPT paging-structure entry is 110b (write/execute).
*/
- kvm_mmu_set_mmio_spte_mask(VMX_EPT_MISCONFIG_WX_VALUE);
+ kvm_mmu_set_mmio_spte_mask(VMX_EPT_RWX_MASK,
+ VMX_EPT_MISCONFIG_WX_VALUE);
}
#define VMX_XSS_EXIT_BITMAP 0
@@ -5194,8 +5453,9 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
vmcs_write32(CPU_BASED_VM_EXEC_CONTROL, vmx_exec_control(vmx));
if (cpu_has_secondary_exec_ctrls()) {
+ vmx_compute_secondary_exec_control(vmx);
vmcs_write32(SECONDARY_VM_EXEC_CONTROL,
- vmx_secondary_exec_control(vmx));
+ vmx->secondary_exec_control);
}
if (kvm_vcpu_apicv_active(&vmx->vcpu)) {
@@ -5233,6 +5493,9 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
vmcs_writel(HOST_GS_BASE, 0); /* 22.2.4 */
#endif
+ if (cpu_has_vmx_vmfunc())
+ vmcs_write64(VM_FUNCTION_CONTROL, 0);
+
vmcs_write32(VM_EXIT_MSR_STORE_COUNT, 0);
vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, 0);
vmcs_write64(VM_EXIT_MSR_LOAD_ADDR, __pa(vmx->msr_autoload.host));
@@ -5447,10 +5710,8 @@ static void vmx_inject_nmi(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
- if (!is_guest_mode(vcpu)) {
- ++vcpu->stat.nmi_injections;
- vmx->nmi_known_unmasked = false;
- }
+ ++vcpu->stat.nmi_injections;
+ vmx->loaded_vmcs->nmi_known_unmasked = false;
if (vmx->rmode.vm86_active) {
if (kvm_inject_realmode_interrupt(vcpu, NMI_VECTOR, 0) != EMULATE_DONE)
@@ -5464,16 +5725,21 @@ static void vmx_inject_nmi(struct kvm_vcpu *vcpu)
static bool vmx_get_nmi_mask(struct kvm_vcpu *vcpu)
{
- if (to_vmx(vcpu)->nmi_known_unmasked)
+ struct vcpu_vmx *vmx = to_vmx(vcpu);
+ bool masked;
+
+ if (vmx->loaded_vmcs->nmi_known_unmasked)
return false;
- return vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) & GUEST_INTR_STATE_NMI;
+ masked = vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) & GUEST_INTR_STATE_NMI;
+ vmx->loaded_vmcs->nmi_known_unmasked = !masked;
+ return masked;
}
static void vmx_set_nmi_mask(struct kvm_vcpu *vcpu, bool masked)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
- vmx->nmi_known_unmasked = !masked;
+ vmx->loaded_vmcs->nmi_known_unmasked = !masked;
if (masked)
vmcs_set_bits(GUEST_INTERRUPTIBILITY_INFO,
GUEST_INTR_STATE_NMI);
@@ -5646,14 +5912,11 @@ static int handle_exception(struct kvm_vcpu *vcpu)
}
if (is_page_fault(intr_info)) {
- /* EPT won't cause page fault directly */
- BUG_ON(enable_ept);
cr2 = vmcs_readl(EXIT_QUALIFICATION);
- trace_kvm_page_fault(cr2, error_code);
-
- if (kvm_event_needs_reinjection(vcpu))
- kvm_mmu_unprotect_page_virt(vcpu, cr2);
- return kvm_mmu_page_fault(vcpu, cr2, error_code, NULL, 0);
+ /* EPT won't cause page fault directly */
+ WARN_ON_ONCE(!vcpu->arch.apf.host_apf_reason && enable_ept);
+ return kvm_handle_page_fault(vcpu, error_code, cr2, NULL, 0,
+ true);
}
ex_no = intr_info & INTR_INFO_VECTOR_MASK;
@@ -5711,6 +5974,7 @@ static int handle_external_interrupt(struct kvm_vcpu *vcpu)
static int handle_triple_fault(struct kvm_vcpu *vcpu)
{
vcpu->run->exit_reason = KVM_EXIT_SHUTDOWN;
+ vcpu->mmio_needed = 0;
return 0;
}
@@ -6206,21 +6470,10 @@ static int handle_ept_violation(struct kvm_vcpu *vcpu)
{
unsigned long exit_qualification;
gpa_t gpa;
- u32 error_code;
+ u64 error_code;
exit_qualification = vmcs_readl(EXIT_QUALIFICATION);
- if (is_guest_mode(vcpu)
- && !(exit_qualification & EPT_VIOLATION_GVA_TRANSLATED)) {
- /*
- * Fix up exit_qualification according to whether guest
- * page table accesses are reads or writes.
- */
- u64 eptp = nested_ept_get_cr3(vcpu);
- if (!(eptp & VMX_EPT_AD_ENABLE_BIT))
- exit_qualification &= ~EPT_VIOLATION_ACC_WRITE;
- }
-
/*
* EPT violation happened while executing iret from NMI,
* "blocked by NMI" bit has to be set before next VM entry.
@@ -6249,9 +6502,10 @@ static int handle_ept_violation(struct kvm_vcpu *vcpu)
EPT_VIOLATION_EXECUTABLE))
? PFERR_PRESENT_MASK : 0;
- vcpu->arch.gpa_available = true;
- vcpu->arch.exit_qualification = exit_qualification;
+ error_code |= (exit_qualification & 0x100) != 0 ?
+ PFERR_GUEST_FINAL_MASK : PFERR_GUEST_PAGE_MASK;
+ vcpu->arch.exit_qualification = exit_qualification;
return kvm_mmu_page_fault(vcpu, gpa, error_code, NULL, 0);
}
@@ -6260,23 +6514,20 @@ static int handle_ept_misconfig(struct kvm_vcpu *vcpu)
int ret;
gpa_t gpa;
+ /*
+ * A nested guest cannot optimize MMIO vmexits, because we have an
+ * nGPA here instead of the required GPA.
+ */
gpa = vmcs_read64(GUEST_PHYSICAL_ADDRESS);
- if (!kvm_io_bus_write(vcpu, KVM_FAST_MMIO_BUS, gpa, 0, NULL)) {
+ if (!is_guest_mode(vcpu) &&
+ !kvm_io_bus_write(vcpu, KVM_FAST_MMIO_BUS, gpa, 0, NULL)) {
trace_kvm_fast_mmio(gpa);
return kvm_skip_emulated_instruction(vcpu);
}
- ret = handle_mmio_page_fault(vcpu, gpa, true);
- vcpu->arch.gpa_available = true;
- if (likely(ret == RET_MMIO_PF_EMULATE))
- return x86_emulate_instruction(vcpu, gpa, 0, NULL, 0) ==
- EMULATE_DONE;
-
- if (unlikely(ret == RET_MMIO_PF_INVALID))
- return kvm_mmu_page_fault(vcpu, gpa, 0, NULL, 0);
-
- if (unlikely(ret == RET_MMIO_PF_RETRY))
- return 1;
+ ret = kvm_mmu_page_fault(vcpu, gpa, PFERR_RSVD_MASK, NULL, 0);
+ if (ret >= 0)
+ return ret;
/* It is the real ept misconfig */
WARN_ON(1);
@@ -6443,7 +6694,7 @@ void vmx_enable_tdp(void)
enable_ept_ad_bits ? VMX_EPT_DIRTY_BIT : 0ull,
0ull, VMX_EPT_EXECUTABLE_MASK,
cpu_has_vmx_ept_execute_only() ? 0ull : VMX_EPT_READABLE_MASK,
- enable_ept_ad_bits ? 0ull : VMX_EPT_RWX_MASK);
+ VMX_EPT_RWX_MASK, 0ull);
ept_set_mmio_spte_mask();
kvm_enable_tdp();
@@ -6498,7 +6749,8 @@ static __init int hardware_setup(void)
init_vmcs_shadow_fields();
if (!cpu_has_vmx_ept() ||
- !cpu_has_vmx_ept_4levels()) {
+ !cpu_has_vmx_ept_4levels() ||
+ !cpu_has_vmx_ept_mt_wb()) {
enable_ept = 0;
enable_unrestricted_guest = 0;
enable_ept_ad_bits = 0;
@@ -6547,7 +6799,6 @@ static __init int hardware_setup(void)
vmx_disable_intercept_for_msr(MSR_IA32_SYSENTER_CS, false);
vmx_disable_intercept_for_msr(MSR_IA32_SYSENTER_ESP, false);
vmx_disable_intercept_for_msr(MSR_IA32_SYSENTER_EIP, false);
- vmx_disable_intercept_for_msr(MSR_IA32_BNDCFGS, true);
memcpy(vmx_msr_bitmap_legacy_x2apic_apicv,
vmx_msr_bitmap_legacy, PAGE_SIZE);
@@ -6642,7 +6893,13 @@ static int handle_pause(struct kvm_vcpu *vcpu)
if (ple_gap)
grow_ple_window(vcpu);
- kvm_vcpu_on_spin(vcpu);
+ /*
+ * Intel sdm vol3 ch-25.1.3 says: The "PAUSE-loop exiting"
+ * VM-execution control is ignored if CPL > 0. OTOH, KVM
+ * never set PAUSE_EXITING and just set PLE if supported,
+ * so the vcpu must be CPL=0 if it gets a PAUSE exit.
+ */
+ kvm_vcpu_on_spin(vcpu, true);
return kvm_skip_emulated_instruction(vcpu);
}
@@ -6657,6 +6914,12 @@ static int handle_mwait(struct kvm_vcpu *vcpu)
return handle_nop(vcpu);
}
+static int handle_invalid_op(struct kvm_vcpu *vcpu)
+{
+ kvm_queue_exception(vcpu, UD_VECTOR);
+ return 1;
+}
+
static int handle_monitor_trap(struct kvm_vcpu *vcpu)
{
return 1;
@@ -6873,7 +7136,7 @@ static int get_vmx_mem_address(struct kvm_vcpu *vcpu,
* non-canonical form. This is the only check on the memory
* destination for long mode!
*/
- exn = is_noncanonical_address(*ret);
+ exn = is_noncanonical_address(*ret, vcpu);
} else if (is_protmode(vcpu)) {
/* Protected mode: apply checks for segment validity in the
* following order:
@@ -7037,19 +7300,19 @@ static int handle_vmon(struct kvm_vcpu *vcpu)
return kvm_skip_emulated_instruction(vcpu);
}
- page = nested_get_page(vcpu, vmptr);
- if (page == NULL) {
+ page = kvm_vcpu_gpa_to_page(vcpu, vmptr);
+ if (is_error_page(page)) {
nested_vmx_failInvalid(vcpu);
return kvm_skip_emulated_instruction(vcpu);
}
if (*(u32 *)kmap(page) != VMCS12_REVISION) {
kunmap(page);
- nested_release_page_clean(page);
+ kvm_release_page_clean(page);
nested_vmx_failInvalid(vcpu);
return kvm_skip_emulated_instruction(vcpu);
}
kunmap(page);
- nested_release_page_clean(page);
+ kvm_release_page_clean(page);
vmx->nested.vmxon_ptr = vmptr;
ret = enter_vmx_operation(vcpu);
@@ -7076,34 +7339,32 @@ static int nested_vmx_check_permission(struct kvm_vcpu *vcpu)
return 1;
}
+static void vmx_disable_shadow_vmcs(struct vcpu_vmx *vmx)
+{
+ vmcs_clear_bits(SECONDARY_VM_EXEC_CONTROL, SECONDARY_EXEC_SHADOW_VMCS);
+ vmcs_write64(VMCS_LINK_POINTER, -1ull);
+}
+
static inline void nested_release_vmcs12(struct vcpu_vmx *vmx)
{
if (vmx->nested.current_vmptr == -1ull)
return;
- /* current_vmptr and current_vmcs12 are always set/reset together */
- if (WARN_ON(vmx->nested.current_vmcs12 == NULL))
- return;
-
if (enable_shadow_vmcs) {
/* copy to memory all shadowed fields in case
they were modified */
copy_shadow_to_vmcs12(vmx);
vmx->nested.sync_shadow_vmcs = false;
- vmcs_clear_bits(SECONDARY_VM_EXEC_CONTROL,
- SECONDARY_EXEC_SHADOW_VMCS);
- vmcs_write64(VMCS_LINK_POINTER, -1ull);
+ vmx_disable_shadow_vmcs(vmx);
}
vmx->nested.posted_intr_nv = -1;
/* Flush VMCS12 to guest memory */
- memcpy(vmx->nested.current_vmcs12, vmx->nested.cached_vmcs12,
- VMCS12_SIZE);
+ kvm_vcpu_write_guest_page(&vmx->vcpu,
+ vmx->nested.current_vmptr >> PAGE_SHIFT,
+ vmx->nested.cached_vmcs12, 0, VMCS12_SIZE);
- kunmap(vmx->nested.current_vmcs12_page);
- nested_release_page(vmx->nested.current_vmcs12_page);
vmx->nested.current_vmptr = -1ull;
- vmx->nested.current_vmcs12 = NULL;
}
/*
@@ -7117,12 +7378,14 @@ static void free_nested(struct vcpu_vmx *vmx)
vmx->nested.vmxon = false;
free_vpid(vmx->nested.vpid02);
- nested_release_vmcs12(vmx);
+ vmx->nested.posted_intr_nv = -1;
+ vmx->nested.current_vmptr = -1ull;
if (vmx->nested.msr_bitmap) {
free_page((unsigned long)vmx->nested.msr_bitmap);
vmx->nested.msr_bitmap = NULL;
}
if (enable_shadow_vmcs) {
+ vmx_disable_shadow_vmcs(vmx);
vmcs_clear(vmx->vmcs01.shadow_vmcs);
free_vmcs(vmx->vmcs01.shadow_vmcs);
vmx->vmcs01.shadow_vmcs = NULL;
@@ -7130,16 +7393,16 @@ static void free_nested(struct vcpu_vmx *vmx)
kfree(vmx->nested.cached_vmcs12);
/* Unpin physical memory we referred to in current vmcs02 */
if (vmx->nested.apic_access_page) {
- nested_release_page(vmx->nested.apic_access_page);
+ kvm_release_page_dirty(vmx->nested.apic_access_page);
vmx->nested.apic_access_page = NULL;
}
if (vmx->nested.virtual_apic_page) {
- nested_release_page(vmx->nested.virtual_apic_page);
+ kvm_release_page_dirty(vmx->nested.virtual_apic_page);
vmx->nested.virtual_apic_page = NULL;
}
if (vmx->nested.pi_desc_page) {
kunmap(vmx->nested.pi_desc_page);
- nested_release_page(vmx->nested.pi_desc_page);
+ kvm_release_page_dirty(vmx->nested.pi_desc_page);
vmx->nested.pi_desc_page = NULL;
vmx->nested.pi_desc = NULL;
}
@@ -7208,25 +7471,6 @@ static int handle_vmresume(struct kvm_vcpu *vcpu)
return nested_vmx_run(vcpu, false);
}
-enum vmcs_field_type {
- VMCS_FIELD_TYPE_U16 = 0,
- VMCS_FIELD_TYPE_U64 = 1,
- VMCS_FIELD_TYPE_U32 = 2,
- VMCS_FIELD_TYPE_NATURAL_WIDTH = 3
-};
-
-static inline int vmcs_field_type(unsigned long field)
-{
- if (0x1 & field) /* the *_HIGH fields are all 32 bit */
- return VMCS_FIELD_TYPE_U32;
- return (field >> 13) & 0x3 ;
-}
-
-static inline int vmcs_field_readonly(unsigned long field)
-{
- return (((field >> 10) & 0x3) == 1);
-}
-
/*
* Read a vmcs12 field. Since these can have varying lengths and we return
* one type, we chose the biggest type (u64) and zero-extend the return value
@@ -7525,29 +7769,29 @@ static int handle_vmptrld(struct kvm_vcpu *vcpu)
if (vmx->nested.current_vmptr != vmptr) {
struct vmcs12 *new_vmcs12;
struct page *page;
- page = nested_get_page(vcpu, vmptr);
- if (page == NULL) {
+ page = kvm_vcpu_gpa_to_page(vcpu, vmptr);
+ if (is_error_page(page)) {
nested_vmx_failInvalid(vcpu);
return kvm_skip_emulated_instruction(vcpu);
}
new_vmcs12 = kmap(page);
if (new_vmcs12->revision_id != VMCS12_REVISION) {
kunmap(page);
- nested_release_page_clean(page);
+ kvm_release_page_clean(page);
nested_vmx_failValid(vcpu,
VMXERR_VMPTRLD_INCORRECT_VMCS_REVISION_ID);
return kvm_skip_emulated_instruction(vcpu);
}
nested_release_vmcs12(vmx);
- vmx->nested.current_vmcs12 = new_vmcs12;
- vmx->nested.current_vmcs12_page = page;
/*
* Load VMCS12 from guest memory since it is not already
* cached.
*/
- memcpy(vmx->nested.cached_vmcs12,
- vmx->nested.current_vmcs12, VMCS12_SIZE);
+ memcpy(vmx->nested.cached_vmcs12, new_vmcs12, VMCS12_SIZE);
+ kunmap(page);
+ kvm_release_page_clean(page);
+
set_current_vmptr(vmx, vmptr);
}
@@ -7651,7 +7895,10 @@ static int handle_invvpid(struct kvm_vcpu *vcpu)
unsigned long type, types;
gva_t gva;
struct x86_exception e;
- int vpid;
+ struct {
+ u64 vpid;
+ u64 gla;
+ } operand;
if (!(vmx->nested.nested_vmx_secondary_ctls_high &
SECONDARY_EXEC_ENABLE_VPID) ||
@@ -7681,17 +7928,28 @@ static int handle_invvpid(struct kvm_vcpu *vcpu)
if (get_vmx_mem_address(vcpu, vmcs_readl(EXIT_QUALIFICATION),
vmx_instruction_info, false, &gva))
return 1;
- if (kvm_read_guest_virt(&vcpu->arch.emulate_ctxt, gva, &vpid,
- sizeof(u32), &e)) {
+ if (kvm_read_guest_virt(&vcpu->arch.emulate_ctxt, gva, &operand,
+ sizeof(operand), &e)) {
kvm_inject_page_fault(vcpu, &e);
return 1;
}
+ if (operand.vpid >> 16) {
+ nested_vmx_failValid(vcpu,
+ VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID);
+ return kvm_skip_emulated_instruction(vcpu);
+ }
switch (type) {
case VMX_VPID_EXTENT_INDIVIDUAL_ADDR:
+ if (is_noncanonical_address(operand.gla, vcpu)) {
+ nested_vmx_failValid(vcpu,
+ VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID);
+ return kvm_skip_emulated_instruction(vcpu);
+ }
+ /* fall through */
case VMX_VPID_EXTENT_SINGLE_CONTEXT:
case VMX_VPID_EXTENT_SINGLE_NON_GLOBAL:
- if (!vpid) {
+ if (!operand.vpid) {
nested_vmx_failValid(vcpu,
VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID);
return kvm_skip_emulated_instruction(vcpu);
@@ -7740,6 +7998,124 @@ static int handle_preemption_timer(struct kvm_vcpu *vcpu)
return 1;
}
+static bool valid_ept_address(struct kvm_vcpu *vcpu, u64 address)
+{
+ struct vcpu_vmx *vmx = to_vmx(vcpu);
+ int maxphyaddr = cpuid_maxphyaddr(vcpu);
+
+ /* Check for memory type validity */
+ switch (address & VMX_EPTP_MT_MASK) {
+ case VMX_EPTP_MT_UC:
+ if (!(vmx->nested.nested_vmx_ept_caps & VMX_EPTP_UC_BIT))
+ return false;
+ break;
+ case VMX_EPTP_MT_WB:
+ if (!(vmx->nested.nested_vmx_ept_caps & VMX_EPTP_WB_BIT))
+ return false;
+ break;
+ default:
+ return false;
+ }
+
+ /* only 4 levels page-walk length are valid */
+ if ((address & VMX_EPTP_PWL_MASK) != VMX_EPTP_PWL_4)
+ return false;
+
+ /* Reserved bits should not be set */
+ if (address >> maxphyaddr || ((address >> 7) & 0x1f))
+ return false;
+
+ /* AD, if set, should be supported */
+ if (address & VMX_EPTP_AD_ENABLE_BIT) {
+ if (!(vmx->nested.nested_vmx_ept_caps & VMX_EPT_AD_BIT))
+ return false;
+ }
+
+ return true;
+}
+
+static int nested_vmx_eptp_switching(struct kvm_vcpu *vcpu,
+ struct vmcs12 *vmcs12)
+{
+ u32 index = vcpu->arch.regs[VCPU_REGS_RCX];
+ u64 address;
+ bool accessed_dirty;
+ struct kvm_mmu *mmu = vcpu->arch.walk_mmu;
+
+ if (!nested_cpu_has_eptp_switching(vmcs12) ||
+ !nested_cpu_has_ept(vmcs12))
+ return 1;
+
+ if (index >= VMFUNC_EPTP_ENTRIES)
+ return 1;
+
+
+ if (kvm_vcpu_read_guest_page(vcpu, vmcs12->eptp_list_address >> PAGE_SHIFT,
+ &address, index * 8, 8))
+ return 1;
+
+ accessed_dirty = !!(address & VMX_EPTP_AD_ENABLE_BIT);
+
+ /*
+ * If the (L2) guest does a vmfunc to the currently
+ * active ept pointer, we don't have to do anything else
+ */
+ if (vmcs12->ept_pointer != address) {
+ if (!valid_ept_address(vcpu, address))
+ return 1;
+
+ kvm_mmu_unload(vcpu);
+ mmu->ept_ad = accessed_dirty;
+ mmu->base_role.ad_disabled = !accessed_dirty;
+ vmcs12->ept_pointer = address;
+ /*
+ * TODO: Check what's the correct approach in case
+ * mmu reload fails. Currently, we just let the next
+ * reload potentially fail
+ */
+ kvm_mmu_reload(vcpu);
+ }
+
+ return 0;
+}
+
+static int handle_vmfunc(struct kvm_vcpu *vcpu)
+{
+ struct vcpu_vmx *vmx = to_vmx(vcpu);
+ struct vmcs12 *vmcs12;
+ u32 function = vcpu->arch.regs[VCPU_REGS_RAX];
+
+ /*
+ * VMFUNC is only supported for nested guests, but we always enable the
+ * secondary control for simplicity; for non-nested mode, fake that we
+ * didn't by injecting #UD.
+ */
+ if (!is_guest_mode(vcpu)) {
+ kvm_queue_exception(vcpu, UD_VECTOR);
+ return 1;
+ }
+
+ vmcs12 = get_vmcs12(vcpu);
+ if ((vmcs12->vm_function_control & (1 << function)) == 0)
+ goto fail;
+
+ switch (function) {
+ case 0:
+ if (nested_vmx_eptp_switching(vcpu, vmcs12))
+ goto fail;
+ break;
+ default:
+ goto fail;
+ }
+ return kvm_skip_emulated_instruction(vcpu);
+
+fail:
+ nested_vmx_vmexit(vcpu, vmx->exit_reason,
+ vmcs_read32(VM_EXIT_INTR_INFO),
+ vmcs_readl(EXIT_QUALIFICATION));
+ return 1;
+}
+
/*
* The exit handlers return 1 if the exit was handled fully and guest execution
* may resume. Otherwise they set the kvm_run parameter to indicate what needs
@@ -7787,9 +8163,12 @@ static int (*const kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu) = {
[EXIT_REASON_MONITOR_INSTRUCTION] = handle_monitor,
[EXIT_REASON_INVEPT] = handle_invept,
[EXIT_REASON_INVVPID] = handle_invvpid,
+ [EXIT_REASON_RDRAND] = handle_invalid_op,
+ [EXIT_REASON_RDSEED] = handle_invalid_op,
[EXIT_REASON_XSAVES] = handle_xsaves,
[EXIT_REASON_XRSTORS] = handle_xrstors,
[EXIT_REASON_PML_FULL] = handle_pml_full,
+ [EXIT_REASON_VMFUNC] = handle_vmfunc,
[EXIT_REASON_PREEMPTION_TIMER] = handle_preemption_timer,
};
@@ -7966,19 +8345,11 @@ static bool nested_vmx_exit_handled_cr(struct kvm_vcpu *vcpu,
* should handle it ourselves in L0 (and then continue L2). Only call this
* when in is_guest_mode (L2).
*/
-static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
+static bool nested_vmx_exit_reflected(struct kvm_vcpu *vcpu, u32 exit_reason)
{
u32 intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
struct vcpu_vmx *vmx = to_vmx(vcpu);
struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
- u32 exit_reason = vmx->exit_reason;
-
- trace_kvm_nested_vmexit(kvm_rip_read(vcpu), exit_reason,
- vmcs_readl(EXIT_QUALIFICATION),
- vmx->idt_vectoring_info,
- intr_info,
- vmcs_read32(VM_EXIT_INTR_ERROR_CODE),
- KVM_ISA_VMX);
if (vmx->nested.nested_run_pending)
return false;
@@ -7989,12 +8360,31 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
return true;
}
+ /*
+ * The host physical addresses of some pages of guest memory
+ * are loaded into VMCS02 (e.g. L1's Virtual APIC Page). The CPU
+ * may write to these pages via their host physical address while
+ * L2 is running, bypassing any address-translation-based dirty
+ * tracking (e.g. EPT write protection).
+ *
+ * Mark them dirty on every exit from L2 to prevent them from
+ * getting out of sync with dirty tracking.
+ */
+ nested_mark_vmcs12_pages_dirty(vcpu);
+
+ trace_kvm_nested_vmexit(kvm_rip_read(vcpu), exit_reason,
+ vmcs_readl(EXIT_QUALIFICATION),
+ vmx->idt_vectoring_info,
+ intr_info,
+ vmcs_read32(VM_EXIT_INTR_ERROR_CODE),
+ KVM_ISA_VMX);
+
switch (exit_reason) {
case EXIT_REASON_EXCEPTION_NMI:
if (is_nmi(intr_info))
return false;
else if (is_page_fault(intr_info))
- return enable_ept;
+ return !vmx->vcpu.arch.apf.host_apf_reason && enable_ept;
else if (is_no_device(intr_info) &&
!(vmcs12->guest_cr0 & X86_CR0_TS))
return false;
@@ -8094,6 +8484,10 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
* table is L0's fault.
*/
return false;
+ case EXIT_REASON_INVPCID:
+ return
+ nested_cpu_has2(vmcs12, SECONDARY_EXEC_ENABLE_INVPCID) &&
+ nested_cpu_has(vmcs12, CPU_BASED_INVLPG_EXITING);
case EXIT_REASON_WBINVD:
return nested_cpu_has2(vmcs12, SECONDARY_EXEC_WBINVD_EXITING);
case EXIT_REASON_XSETBV:
@@ -8111,11 +8505,37 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
case EXIT_REASON_PML_FULL:
/* We emulate PML support to L1. */
return false;
+ case EXIT_REASON_VMFUNC:
+ /* VM functions are emulated through L2->L0 vmexits. */
+ return false;
default:
return true;
}
}
+static int nested_vmx_reflect_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason)
+{
+ u32 exit_intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
+
+ /*
+ * At this point, the exit interruption info in exit_intr_info
+ * is only valid for EXCEPTION_NMI exits. For EXTERNAL_INTERRUPT
+ * we need to query the in-kernel LAPIC.
+ */
+ WARN_ON(exit_reason == EXIT_REASON_EXTERNAL_INTERRUPT);
+ if ((exit_intr_info &
+ (INTR_INFO_VALID_MASK | INTR_INFO_DELIVER_CODE_MASK)) ==
+ (INTR_INFO_VALID_MASK | INTR_INFO_DELIVER_CODE_MASK)) {
+ struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
+ vmcs12->vm_exit_intr_error_code =
+ vmcs_read32(VM_EXIT_INTR_ERROR_CODE);
+ }
+
+ nested_vmx_vmexit(vcpu, exit_reason, exit_intr_info,
+ vmcs_readl(EXIT_QUALIFICATION));
+ return 1;
+}
+
static void vmx_get_exit_info(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2)
{
*info1 = vmcs_readl(EXIT_QUALIFICATION);
@@ -8346,7 +8766,6 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu)
u32 vectoring_info = vmx->idt_vectoring_info;
trace_kvm_exit(exit_reason, vcpu, KVM_ISA_VMX);
- vcpu->arch.gpa_available = false;
/*
* Flush logged GPAs PML buffer, this will make dirty_bitmap more
@@ -8362,12 +8781,8 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu)
if (vmx->emulation_required)
return handle_invalid_guest_state(vcpu);
- if (is_guest_mode(vcpu) && nested_vmx_exit_handled(vcpu)) {
- nested_vmx_vmexit(vcpu, exit_reason,
- vmcs_read32(VM_EXIT_INTR_INFO),
- vmcs_readl(EXIT_QUALIFICATION));
- return 1;
- }
+ if (is_guest_mode(vcpu) && nested_vmx_exit_reflected(vcpu, exit_reason))
+ return nested_vmx_reflect_vmexit(vcpu, exit_reason);
if (exit_reason & VMX_EXIT_REASONS_FAILED_VMENTRY) {
dump_vmcs();
@@ -8398,9 +8813,15 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu)
exit_reason != EXIT_REASON_TASK_SWITCH)) {
vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
vcpu->run->internal.suberror = KVM_INTERNAL_ERROR_DELIVERY_EV;
- vcpu->run->internal.ndata = 2;
+ vcpu->run->internal.ndata = 3;
vcpu->run->internal.data[0] = vectoring_info;
vcpu->run->internal.data[1] = exit_reason;
+ vcpu->run->internal.data[2] = vcpu->arch.exit_qualification;
+ if (exit_reason == EXIT_REASON_EPT_MISCONFIG) {
+ vcpu->run->internal.ndata++;
+ vcpu->run->internal.data[3] =
+ vmcs_read64(GUEST_PHYSICAL_ADDRESS);
+ }
return 0;
}
@@ -8591,17 +9012,24 @@ static void vmx_apicv_post_state_restore(struct kvm_vcpu *vcpu)
static void vmx_complete_atomic_exit(struct vcpu_vmx *vmx)
{
- u32 exit_intr_info;
+ u32 exit_intr_info = 0;
+ u16 basic_exit_reason = (u16)vmx->exit_reason;
- if (!(vmx->exit_reason == EXIT_REASON_MCE_DURING_VMENTRY
- || vmx->exit_reason == EXIT_REASON_EXCEPTION_NMI))
+ if (!(basic_exit_reason == EXIT_REASON_MCE_DURING_VMENTRY
+ || basic_exit_reason == EXIT_REASON_EXCEPTION_NMI))
return;
- vmx->exit_intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
- exit_intr_info = vmx->exit_intr_info;
+ if (!(vmx->exit_reason & VMX_EXIT_REASONS_FAILED_VMENTRY))
+ exit_intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
+ vmx->exit_intr_info = exit_intr_info;
+
+ /* if exit due to PF check for async PF */
+ if (is_page_fault(exit_intr_info))
+ vmx->vcpu.arch.apf.host_apf_reason = kvm_read_and_reset_pf_reason();
/* Handle machine checks before interrupts are enabled */
- if (is_machine_check(exit_intr_info))
+ if (basic_exit_reason == EXIT_REASON_MCE_DURING_VMENTRY ||
+ is_machine_check(exit_intr_info))
kvm_machine_check();
/* We need to handle NMIs before interrupts are enabled */
@@ -8615,7 +9043,6 @@ static void vmx_complete_atomic_exit(struct vcpu_vmx *vmx)
static void vmx_handle_external_intr(struct kvm_vcpu *vcpu)
{
u32 exit_intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
- register void *__sp asm(_ASM_SP);
if ((exit_intr_info & (INTR_INFO_VALID_MASK | INTR_INFO_INTR_TYPE_MASK))
== (INTR_INFO_VALID_MASK | INTR_TYPE_EXT_INTR)) {
@@ -8629,7 +9056,7 @@ static void vmx_handle_external_intr(struct kvm_vcpu *vcpu)
vector = exit_intr_info & INTR_INFO_VECTOR_MASK;
desc = (gate_desc *)vmx->host_idt_base + vector;
- entry = gate_offset(*desc);
+ entry = gate_offset(desc);
asm volatile(
#ifdef CONFIG_X86_64
"mov %%" _ASM_SP ", %[sp]\n\t"
@@ -8644,7 +9071,7 @@ static void vmx_handle_external_intr(struct kvm_vcpu *vcpu)
#ifdef CONFIG_X86_64
[sp]"=&r"(tmp),
#endif
- "+r"(__sp)
+ ASM_CALL_CONSTRAINT
:
[entry]"r"(entry),
[ss]"i"(__KERNEL_DS),
@@ -8652,6 +9079,7 @@ static void vmx_handle_external_intr(struct kvm_vcpu *vcpu)
);
}
}
+STACK_FRAME_NON_STANDARD(vmx_handle_external_intr);
static bool vmx_has_high_real_mode_segbase(void)
{
@@ -8679,7 +9107,7 @@ static void vmx_recover_nmi_blocking(struct vcpu_vmx *vmx)
idtv_info_valid = vmx->idt_vectoring_info & VECTORING_INFO_VALID_MASK;
- if (vmx->nmi_known_unmasked)
+ if (vmx->loaded_vmcs->nmi_known_unmasked)
return;
/*
* Can't use vmx->exit_intr_info since we're not sure what
@@ -8703,7 +9131,7 @@ static void vmx_recover_nmi_blocking(struct vcpu_vmx *vmx)
vmcs_set_bits(GUEST_INTERRUPTIBILITY_INFO,
GUEST_INTR_STATE_NMI);
else
- vmx->nmi_known_unmasked =
+ vmx->loaded_vmcs->nmi_known_unmasked =
!(vmcs_read32(GUEST_INTERRUPTIBILITY_INFO)
& GUEST_INTR_STATE_NMI);
}
@@ -8820,7 +9248,7 @@ static void vmx_arm_hv_timer(struct kvm_vcpu *vcpu)
static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
- unsigned long debugctlmsr, cr4;
+ unsigned long debugctlmsr, cr3, cr4;
/* Don't enter VMX if guest state is invalid, let the exit handler
start emulation until we arrive back to a valid state */
@@ -8842,10 +9270,16 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
if (test_bit(VCPU_REGS_RIP, (unsigned long *)&vcpu->arch.regs_dirty))
vmcs_writel(GUEST_RIP, vcpu->arch.regs[VCPU_REGS_RIP]);
+ cr3 = __get_current_cr3_fast();
+ if (unlikely(cr3 != vmx->loaded_vmcs->vmcs_host_cr3)) {
+ vmcs_writel(HOST_CR3, cr3);
+ vmx->loaded_vmcs->vmcs_host_cr3 = cr3;
+ }
+
cr4 = cr4_read_shadow();
- if (unlikely(cr4 != vmx->host_state.vmcs_host_cr4)) {
+ if (unlikely(cr4 != vmx->loaded_vmcs->vmcs_host_cr4)) {
vmcs_writel(HOST_CR4, cr4);
- vmx->host_state.vmcs_host_cr4 = cr4;
+ vmx->loaded_vmcs->vmcs_host_cr4 = cr4;
}
/* When single-stepping over STI and MOV SS, we must clear the
@@ -8856,8 +9290,10 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
vmx_set_interrupt_shadow(vcpu, 0);
- if (vmx->guest_pkru_valid)
- __write_pkru(vmx->guest_pkru);
+ if (static_cpu_has(X86_FEATURE_PKU) &&
+ kvm_read_cr4_bits(vcpu, X86_CR4_PKE) &&
+ vcpu->arch.pkru != vmx->host_pkru)
+ __write_pkru(vcpu->arch.pkru);
atomic_switch_perf_msrs(vmx);
debugctlmsr = get_debugctlmsr();
@@ -8994,24 +9430,16 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
| (1 << VCPU_EXREG_CR3));
vcpu->arch.regs_dirty = 0;
- vmx->idt_vectoring_info = vmcs_read32(IDT_VECTORING_INFO_FIELD);
-
- vmx->loaded_vmcs->launched = 1;
-
- vmx->exit_reason = vmcs_read32(VM_EXIT_REASON);
-
/*
* eager fpu is enabled if PKEY is supported and CR4 is switched
* back on host, so it is safe to read guest PKRU from current
* XSAVE.
*/
- if (boot_cpu_has(X86_FEATURE_OSPKE)) {
- vmx->guest_pkru = __read_pkru();
- if (vmx->guest_pkru != vmx->host_pkru) {
- vmx->guest_pkru_valid = true;
+ if (static_cpu_has(X86_FEATURE_PKU) &&
+ kvm_read_cr4_bits(vcpu, X86_CR4_PKE)) {
+ vcpu->arch.pkru = __read_pkru();
+ if (vcpu->arch.pkru != vmx->host_pkru)
__write_pkru(vmx->host_pkru);
- } else
- vmx->guest_pkru_valid = false;
}
/*
@@ -9023,11 +9451,20 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
kvm_make_request(KVM_REQ_EVENT, vcpu);
vmx->nested.nested_run_pending = 0;
+ vmx->idt_vectoring_info = 0;
+
+ vmx->exit_reason = vmx->fail ? 0xdead : vmcs_read32(VM_EXIT_REASON);
+ if (vmx->fail || (vmx->exit_reason & VMX_EXIT_REASONS_FAILED_VMENTRY))
+ return;
+
+ vmx->loaded_vmcs->launched = 1;
+ vmx->idt_vectoring_info = vmcs_read32(IDT_VECTORING_INFO_FIELD);
vmx_complete_atomic_exit(vmx);
vmx_recover_nmi_blocking(vmx);
vmx_complete_interrupts(vmx);
}
+STACK_FRAME_NON_STANDARD(vmx_vcpu_run);
static void vmx_switch_vmcs(struct kvm_vcpu *vcpu, struct loaded_vmcs *vmcs)
{
@@ -9149,10 +9586,16 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id)
vmx->nested.posted_intr_nv = -1;
vmx->nested.current_vmptr = -1ull;
- vmx->nested.current_vmcs12 = NULL;
vmx->msr_ia32_feature_control_valid_bits = FEATURE_CONTROL_LOCKED;
+ /*
+ * Enforce invariant: pi_desc.nv is always either POSTED_INTR_VECTOR
+ * or POSTED_INTR_WAKEUP_VECTOR.
+ */
+ vmx->pi_desc.nv = POSTED_INTR_VECTOR;
+ vmx->pi_desc.sn = 1;
+
return &vmx->vcpu;
free_vmcs:
@@ -9184,11 +9627,6 @@ static void __init vmx_check_processor_compat(void *rtn)
}
}
-static int get_ept_level(void)
-{
- return VMX_EPT_DEFAULT_GAW + 1;
-}
-
static u64 vmx_get_mt_mask(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio)
{
u8 cache;
@@ -9305,39 +9743,13 @@ static void nested_vmx_cr_fixed1_bits_update(struct kvm_vcpu *vcpu)
static void vmx_cpuid_update(struct kvm_vcpu *vcpu)
{
- struct kvm_cpuid_entry2 *best;
struct vcpu_vmx *vmx = to_vmx(vcpu);
- u32 secondary_exec_ctl = vmx_secondary_exec_control(vmx);
-
- if (vmx_rdtscp_supported()) {
- bool rdtscp_enabled = guest_cpuid_has_rdtscp(vcpu);
- if (!rdtscp_enabled)
- secondary_exec_ctl &= ~SECONDARY_EXEC_RDTSCP;
-
- if (nested) {
- if (rdtscp_enabled)
- vmx->nested.nested_vmx_secondary_ctls_high |=
- SECONDARY_EXEC_RDTSCP;
- else
- vmx->nested.nested_vmx_secondary_ctls_high &=
- ~SECONDARY_EXEC_RDTSCP;
- }
- }
- /* Exposing INVPCID only when PCID is exposed */
- best = kvm_find_cpuid_entry(vcpu, 0x7, 0);
- if (vmx_invpcid_supported() &&
- (!best || !(best->ebx & bit(X86_FEATURE_INVPCID)) ||
- !guest_cpuid_has_pcid(vcpu))) {
- secondary_exec_ctl &= ~SECONDARY_EXEC_ENABLE_INVPCID;
-
- if (best)
- best->ebx &= ~bit(X86_FEATURE_INVPCID);
+ if (cpu_has_secondary_exec_ctrls()) {
+ vmx_compute_secondary_exec_control(vmx);
+ vmcs_set_secondary_exec_control(vmx->secondary_exec_control);
}
- if (cpu_has_secondary_exec_ctrls())
- vmcs_set_secondary_exec_control(secondary_exec_ctl);
-
if (nested_vmx_allowed(vcpu))
to_vmx(vcpu)->msr_ia32_feature_control_valid_bits |=
FEATURE_CONTROL_VMXON_ENABLED_OUTSIDE_SMX;
@@ -9376,6 +9788,11 @@ static void nested_ept_inject_page_fault(struct kvm_vcpu *vcpu,
vmcs12->guest_physical_address = fault->address;
}
+static bool nested_ept_ad_enabled(struct kvm_vcpu *vcpu)
+{
+ return nested_ept_get_cr3(vcpu) & VMX_EPTP_AD_ENABLE_BIT;
+}
+
/* Callbacks for nested_ept_init_mmu_context: */
static unsigned long nested_ept_get_cr3(struct kvm_vcpu *vcpu)
@@ -9386,18 +9803,15 @@ static unsigned long nested_ept_get_cr3(struct kvm_vcpu *vcpu)
static int nested_ept_init_mmu_context(struct kvm_vcpu *vcpu)
{
- u64 eptp;
-
WARN_ON(mmu_is_nested(vcpu));
- eptp = nested_ept_get_cr3(vcpu);
- if ((eptp & VMX_EPT_AD_ENABLE_BIT) && !enable_ept_ad_bits)
+ if (!valid_ept_address(vcpu, nested_ept_get_cr3(vcpu)))
return 1;
kvm_mmu_unload(vcpu);
kvm_init_shadow_ept_mmu(vcpu,
to_vmx(vcpu)->nested.nested_vmx_ept_caps &
VMX_EPT_EXECUTE_ONLY_BIT,
- eptp & VMX_EPT_AD_ENABLE_BIT);
+ nested_ept_ad_enabled(vcpu));
vcpu->arch.mmu.set_cr3 = vmx_set_cr3;
vcpu->arch.mmu.get_cr3 = nested_ept_get_cr3;
vcpu->arch.mmu.inject_page_fault = nested_ept_inject_page_fault;
@@ -9430,12 +9844,16 @@ static void vmx_inject_page_fault_nested(struct kvm_vcpu *vcpu,
WARN_ON(!is_guest_mode(vcpu));
- if (nested_vmx_is_page_fault_vmexit(vmcs12, fault->error_code))
- nested_vmx_vmexit(vcpu, to_vmx(vcpu)->exit_reason,
- vmcs_read32(VM_EXIT_INTR_INFO),
- vmcs_readl(EXIT_QUALIFICATION));
- else
+ if (nested_vmx_is_page_fault_vmexit(vmcs12, fault->error_code) &&
+ !to_vmx(vcpu)->nested.nested_run_pending) {
+ vmcs12->vm_exit_intr_error_code = fault->error_code;
+ nested_vmx_vmexit(vcpu, EXIT_REASON_EXCEPTION_NMI,
+ PF_VECTOR | INTR_TYPE_HARD_EXCEPTION |
+ INTR_INFO_DELIVER_CODE_MASK | INTR_INFO_VALID_MASK,
+ fault->address);
+ } else {
kvm_inject_page_fault(vcpu, fault);
+ }
}
static inline bool nested_vmx_merge_msr_bitmap(struct kvm_vcpu *vcpu,
@@ -9445,6 +9863,7 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu,
struct vmcs12 *vmcs12)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
+ struct page *page;
u64 hpa;
if (nested_cpu_has2(vmcs12, SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES)) {
@@ -9454,17 +9873,19 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu,
* physical address remains valid. We keep a reference
* to it so we can release it later.
*/
- if (vmx->nested.apic_access_page) /* shouldn't happen */
- nested_release_page(vmx->nested.apic_access_page);
- vmx->nested.apic_access_page =
- nested_get_page(vcpu, vmcs12->apic_access_addr);
+ if (vmx->nested.apic_access_page) { /* shouldn't happen */
+ kvm_release_page_dirty(vmx->nested.apic_access_page);
+ vmx->nested.apic_access_page = NULL;
+ }
+ page = kvm_vcpu_gpa_to_page(vcpu, vmcs12->apic_access_addr);
/*
* If translation failed, no matter: This feature asks
* to exit when accessing the given address, and if it
* can never be accessed, this feature won't do
* anything anyway.
*/
- if (vmx->nested.apic_access_page) {
+ if (!is_error_page(page)) {
+ vmx->nested.apic_access_page = page;
hpa = page_to_phys(vmx->nested.apic_access_page);
vmcs_write64(APIC_ACCESS_ADDR, hpa);
} else {
@@ -9479,10 +9900,11 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu,
}
if (nested_cpu_has(vmcs12, CPU_BASED_TPR_SHADOW)) {
- if (vmx->nested.virtual_apic_page) /* shouldn't happen */
- nested_release_page(vmx->nested.virtual_apic_page);
- vmx->nested.virtual_apic_page =
- nested_get_page(vcpu, vmcs12->virtual_apic_page_addr);
+ if (vmx->nested.virtual_apic_page) { /* shouldn't happen */
+ kvm_release_page_dirty(vmx->nested.virtual_apic_page);
+ vmx->nested.virtual_apic_page = NULL;
+ }
+ page = kvm_vcpu_gpa_to_page(vcpu, vmcs12->virtual_apic_page_addr);
/*
* If translation failed, VM entry will fail because
@@ -9497,7 +9919,8 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu,
* control. But such a configuration is useless, so
* let's keep the code simple.
*/
- if (vmx->nested.virtual_apic_page) {
+ if (!is_error_page(page)) {
+ vmx->nested.virtual_apic_page = page;
hpa = page_to_phys(vmx->nested.virtual_apic_page);
vmcs_write64(VIRTUAL_APIC_PAGE_ADDR, hpa);
}
@@ -9506,16 +9929,14 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu,
if (nested_cpu_has_posted_intr(vmcs12)) {
if (vmx->nested.pi_desc_page) { /* shouldn't happen */
kunmap(vmx->nested.pi_desc_page);
- nested_release_page(vmx->nested.pi_desc_page);
+ kvm_release_page_dirty(vmx->nested.pi_desc_page);
+ vmx->nested.pi_desc_page = NULL;
}
- vmx->nested.pi_desc_page =
- nested_get_page(vcpu, vmcs12->posted_intr_desc_addr);
- vmx->nested.pi_desc =
- (struct pi_desc *)kmap(vmx->nested.pi_desc_page);
- if (!vmx->nested.pi_desc) {
- nested_release_page_clean(vmx->nested.pi_desc_page);
+ page = kvm_vcpu_gpa_to_page(vcpu, vmcs12->posted_intr_desc_addr);
+ if (is_error_page(page))
return;
- }
+ vmx->nested.pi_desc_page = page;
+ vmx->nested.pi_desc = kmap(vmx->nested.pi_desc_page);
vmx->nested.pi_desc =
(struct pi_desc *)((void *)vmx->nested.pi_desc +
(unsigned long)(vmcs12->posted_intr_desc_addr &
@@ -9556,23 +9977,38 @@ static void vmx_start_preemption_timer(struct kvm_vcpu *vcpu)
ns_to_ktime(preemption_timeout), HRTIMER_MODE_REL);
}
+static int nested_vmx_check_io_bitmap_controls(struct kvm_vcpu *vcpu,
+ struct vmcs12 *vmcs12)
+{
+ if (!nested_cpu_has(vmcs12, CPU_BASED_USE_IO_BITMAPS))
+ return 0;
+
+ if (!page_address_valid(vcpu, vmcs12->io_bitmap_a) ||
+ !page_address_valid(vcpu, vmcs12->io_bitmap_b))
+ return -EINVAL;
+
+ return 0;
+}
+
static int nested_vmx_check_msr_bitmap_controls(struct kvm_vcpu *vcpu,
struct vmcs12 *vmcs12)
{
- int maxphyaddr;
- u64 addr;
-
if (!nested_cpu_has(vmcs12, CPU_BASED_USE_MSR_BITMAPS))
return 0;
- if (vmcs12_read_any(vcpu, MSR_BITMAP, &addr)) {
- WARN_ON(1);
+ if (!page_address_valid(vcpu, vmcs12->msr_bitmap))
return -EINVAL;
- }
- maxphyaddr = cpuid_maxphyaddr(vcpu);
- if (!PAGE_ALIGNED(vmcs12->msr_bitmap) ||
- ((addr + PAGE_SIZE) >> maxphyaddr))
+ return 0;
+}
+
+static int nested_vmx_check_tpr_shadow_controls(struct kvm_vcpu *vcpu,
+ struct vmcs12 *vmcs12)
+{
+ if (!nested_cpu_has(vmcs12, CPU_BASED_TPR_SHADOW))
+ return 0;
+
+ if (!page_address_valid(vcpu, vmcs12->virtual_apic_page_addr))
return -EINVAL;
return 0;
@@ -9594,8 +10030,8 @@ static inline bool nested_vmx_merge_msr_bitmap(struct kvm_vcpu *vcpu,
if (!nested_cpu_has_virt_x2apic_mode(vmcs12))
return false;
- page = nested_get_page(vcpu, vmcs12->msr_bitmap);
- if (!page)
+ page = kvm_vcpu_gpa_to_page(vcpu, vmcs12->msr_bitmap);
+ if (is_error_page(page))
return false;
msr_bitmap_l1 = (unsigned long *)kmap(page);
@@ -9625,7 +10061,7 @@ static inline bool nested_vmx_merge_msr_bitmap(struct kvm_vcpu *vcpu,
}
}
kunmap(page);
- nested_release_page_clean(page);
+ kvm_release_page_clean(page);
return true;
}
@@ -9960,6 +10396,8 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
vmcs12->vm_entry_instruction_len);
vmcs_write32(GUEST_INTERRUPTIBILITY_INFO,
vmcs12->guest_interruptibility_info);
+ vmx->loaded_vmcs->nmi_known_unmasked =
+ !(vmcs12->guest_interruptibility_info & GUEST_INTR_STATE_NMI);
} else {
vmcs_write32(VM_ENTRY_INTR_INFO_FIELD, 0);
}
@@ -9984,13 +10422,9 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
/* Posted interrupts setting is only taken from vmcs12. */
if (nested_cpu_has_posted_intr(vmcs12)) {
- /*
- * Note that we use L0's vector here and in
- * vmx_deliver_nested_posted_interrupt.
- */
vmx->nested.posted_intr_nv = vmcs12->posted_intr_nv;
vmx->nested.pi_pending = false;
- vmcs_write16(POSTED_INTR_NV, POSTED_INTR_VECTOR);
+ vmcs_write16(POSTED_INTR_NV, POSTED_INTR_NESTED_VECTOR);
} else {
exec_control &= ~PIN_BASED_POSTED_INTR;
}
@@ -10014,12 +10448,6 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
* "or"ing of the EB of vmcs01 and vmcs12, because when enable_ept,
* vmcs01's EB.PF is 0 so the "or" will take vmcs12's value, and when
* !enable_ept, EB.PF is 1, so the "or" will always be 1.
- *
- * A problem with this approach (when !enable_ept) is that L1 may be
- * injected with more page faults than it asked for. This could have
- * caused problems, but in practice existing hypervisors don't care.
- * To fix this, we will need to emulate the PFEC checking (on the L1
- * page tables), using walk_addr(), when injecting PFs to L1.
*/
vmcs_write32(PAGE_FAULT_ERROR_CODE_MASK,
enable_ept ? vmcs12->page_fault_error_code_mask : 0);
@@ -10027,13 +10455,16 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
enable_ept ? vmcs12->page_fault_error_code_match : 0);
if (cpu_has_secondary_exec_ctrls()) {
- exec_control = vmx_secondary_exec_control(vmx);
+ exec_control = vmx->secondary_exec_control;
/* Take the following fields only from vmcs12 */
exec_control &= ~(SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES |
+ SECONDARY_EXEC_ENABLE_INVPCID |
SECONDARY_EXEC_RDTSCP |
+ SECONDARY_EXEC_XSAVES |
SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY |
- SECONDARY_EXEC_APIC_REGISTER_VIRT);
+ SECONDARY_EXEC_APIC_REGISTER_VIRT |
+ SECONDARY_EXEC_ENABLE_VMFUNC);
if (nested_cpu_has(vmcs12,
CPU_BASED_ACTIVATE_SECONDARY_CONTROLS)) {
vmcs12_exec_ctrl = vmcs12->secondary_vm_exec_control &
@@ -10041,6 +10472,10 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
exec_control |= vmcs12_exec_ctrl;
}
+ /* All VMFUNCs are currently emulated through L0 vmexits. */
+ if (exec_control & SECONDARY_EXEC_ENABLE_VMFUNC)
+ vmcs_write64(VM_FUNCTION_CONTROL, 0);
+
if (exec_control & SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY) {
vmcs_write64(EOI_EXIT_BITMAP0,
vmcs12->eoi_exit_bitmap0);
@@ -10106,6 +10541,11 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
if (exec_control & CPU_BASED_TPR_SHADOW) {
vmcs_write64(VIRTUAL_APIC_PAGE_ADDR, -1ull);
vmcs_write32(TPR_THRESHOLD, vmcs12->tpr_threshold);
+ } else {
+#ifdef CONFIG_X86_64
+ exec_control |= CPU_BASED_CR8_LOAD_EXITING |
+ CPU_BASED_CR8_STORE_EXITING;
+#endif
}
/*
@@ -10260,9 +10700,15 @@ static int check_vmentry_prereqs(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
vmcs12->guest_activity_state != GUEST_ACTIVITY_HLT)
return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
+ if (nested_vmx_check_io_bitmap_controls(vcpu, vmcs12))
+ return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
+
if (nested_vmx_check_msr_bitmap_controls(vcpu, vmcs12))
return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
+ if (nested_vmx_check_tpr_shadow_controls(vcpu, vmcs12))
+ return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
+
if (nested_vmx_check_apicv_controls(vcpu, vmcs12))
return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
@@ -10290,6 +10736,18 @@ static int check_vmentry_prereqs(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
vmx->nested.nested_vmx_entry_ctls_high))
return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
+ if (nested_cpu_has_vmfunc(vmcs12)) {
+ if (vmcs12->vm_function_control &
+ ~vmx->nested.nested_vmx_vmfunc_controls)
+ return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
+
+ if (nested_cpu_has_eptp_switching(vmcs12)) {
+ if (!nested_cpu_has_ept(vmcs12) ||
+ !page_address_valid(vcpu, vmcs12->eptp_list_address))
+ return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
+ }
+ }
+
if (vmcs12->cr3_target_count > nested_cpu_vmx_misc_cr3_count(vcpu))
return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
@@ -10396,8 +10854,6 @@ static int enter_vmx_non_root_mode(struct kvm_vcpu *vcpu, bool from_vmentry)
return 1;
}
- vmcs12->launch_state = 1;
-
/*
* Note no nested_vmx_succeed or nested_vmx_fail here. At this point
* we are no longer running L1, and VMLAUNCH/VMRESUME has not yet
@@ -10415,6 +10871,7 @@ static int nested_vmx_run(struct kvm_vcpu *vcpu, bool launch)
{
struct vmcs12 *vmcs12;
struct vcpu_vmx *vmx = to_vmx(vcpu);
+ u32 interrupt_shadow = vmx_get_interrupt_shadow(vcpu);
u32 exit_qual;
int ret;
@@ -10439,6 +10896,12 @@ static int nested_vmx_run(struct kvm_vcpu *vcpu, bool launch)
* for misconfigurations which will anyway be caught by the processor
* when using the merged vmcs02.
*/
+ if (interrupt_shadow & KVM_X86_SHADOW_INT_MOV_SS) {
+ nested_vmx_failValid(vcpu,
+ VMXERR_ENTRY_EVENTS_BLOCKED_BY_MOV_SS);
+ goto out;
+ }
+
if (vmcs12->launch_state == launch) {
nested_vmx_failValid(vcpu,
launch ? VMXERR_VMLAUNCH_NONCLEAR_VMCS
@@ -10531,7 +10994,7 @@ static void vmcs12_save_pending_event(struct kvm_vcpu *vcpu,
u32 idt_vectoring;
unsigned int nr;
- if (vcpu->arch.exception.pending && vcpu->arch.exception.reinject) {
+ if (vcpu->arch.exception.injected) {
nr = vcpu->arch.exception.nr;
idt_vectoring = nr | VECTORING_INFO_VALID_MASK;
@@ -10570,12 +11033,20 @@ static void vmcs12_save_pending_event(struct kvm_vcpu *vcpu,
static int vmx_check_nested_events(struct kvm_vcpu *vcpu, bool external_intr)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
+ unsigned long exit_qual;
- if (vcpu->arch.exception.pending ||
- vcpu->arch.nmi_injected ||
- vcpu->arch.interrupt.pending)
+ if (kvm_event_needs_reinjection(vcpu))
return -EBUSY;
+ if (vcpu->arch.exception.pending &&
+ nested_vmx_check_exception(vcpu, &exit_qual)) {
+ if (vmx->nested.nested_run_pending)
+ return -EBUSY;
+ nested_vmx_inject_exception_vmexit(vcpu, exit_qual);
+ vcpu->arch.exception.pending = false;
+ return 0;
+ }
+
if (nested_cpu_has_preemption_timer(get_vmcs12(vcpu)) &&
vmx->nested.preemption_timer_expired) {
if (vmx->nested.nested_run_pending)
@@ -10710,8 +11181,7 @@ static void sync_vmcs12(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
vmcs12->guest_pdptr3 = vmcs_read64(GUEST_PDPTR3);
}
- if (nested_cpu_has_ept(vmcs12))
- vmcs12->guest_linear_address = vmcs_readl(GUEST_LINEAR_ADDRESS);
+ vmcs12->guest_linear_address = vmcs_readl(GUEST_LINEAR_ADDRESS);
if (nested_cpu_has_vid(vmcs12))
vmcs12->guest_intr_status = vmcs_read16(GUEST_INTR_STATUS);
@@ -10736,8 +11206,6 @@ static void sync_vmcs12(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
vmcs12->guest_sysenter_eip = vmcs_readl(GUEST_SYSENTER_EIP);
if (kvm_mpx_supported())
vmcs12->guest_bndcfgs = vmcs_read64(GUEST_BNDCFGS);
- if (nested_cpu_has_xsaves(vmcs12))
- vmcs12->xss_exit_bitmap = vmcs_read64(XSS_EXIT_BITMAP);
}
/*
@@ -10762,18 +11230,15 @@ static void prepare_vmcs12(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
vmcs12->vm_exit_reason = exit_reason;
vmcs12->exit_qualification = exit_qualification;
-
vmcs12->vm_exit_intr_info = exit_intr_info;
- if ((vmcs12->vm_exit_intr_info &
- (INTR_INFO_VALID_MASK | INTR_INFO_DELIVER_CODE_MASK)) ==
- (INTR_INFO_VALID_MASK | INTR_INFO_DELIVER_CODE_MASK))
- vmcs12->vm_exit_intr_error_code =
- vmcs_read32(VM_EXIT_INTR_ERROR_CODE);
+
vmcs12->idt_vectoring_info_field = 0;
vmcs12->vm_exit_instruction_len = vmcs_read32(VM_EXIT_INSTRUCTION_LEN);
vmcs12->vmx_instruction_info = vmcs_read32(VMX_INSTRUCTION_INFO);
if (!(vmcs12->vm_exit_reason & VMX_EXIT_REASONS_FAILED_VMENTRY)) {
+ vmcs12->launch_state = 1;
+
/* vm_entry_intr_info_field is cleared on exit. Emulate this
* instead of reading the real value. */
vmcs12->vm_entry_intr_info_field &= ~INTR_INFO_VALID_MASK;
@@ -10832,7 +11297,7 @@ static void load_vmcs12_host_state(struct kvm_vcpu *vcpu,
/* Same as above - no reason to call set_cr4_guest_host_mask(). */
vcpu->arch.cr4_guest_owned_bits = ~vmcs_readl(CR4_GUEST_HOST_MASK);
- kvm_set_cr4(vcpu, vmcs12->host_cr4);
+ vmx_set_cr4(vcpu, vmcs12->host_cr4);
nested_ept_uninit_mmu_context(vcpu);
@@ -10854,7 +11319,9 @@ static void load_vmcs12_host_state(struct kvm_vcpu *vcpu,
*/
vmx_flush_tlb(vcpu);
}
-
+ /* Restore posted intr vector. */
+ if (nested_cpu_has_posted_intr(vmcs12))
+ vmcs_write16(POSTED_INTR_NV, POSTED_INTR_VECTOR);
vmcs_write32(GUEST_SYSENTER_CS, vmcs12->host_ia32_sysenter_cs);
vmcs_writel(GUEST_SYSENTER_ESP, vmcs12->host_ia32_sysenter_esp);
@@ -10942,39 +11409,30 @@ static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
- u32 vm_inst_error = 0;
/* trying to cancel vmlaunch/vmresume is a bug */
WARN_ON_ONCE(vmx->nested.nested_run_pending);
- leave_guest_mode(vcpu);
- prepare_vmcs12(vcpu, vmcs12, exit_reason, exit_intr_info,
- exit_qualification);
-
- if (nested_vmx_store_msr(vcpu, vmcs12->vm_exit_msr_store_addr,
- vmcs12->vm_exit_msr_store_count))
- nested_vmx_abort(vcpu, VMX_ABORT_SAVE_GUEST_MSR_FAIL);
+ /*
+ * The only expected VM-instruction error is "VM entry with
+ * invalid control field(s)." Anything else indicates a
+ * problem with L0.
+ */
+ WARN_ON_ONCE(vmx->fail && (vmcs_read32(VM_INSTRUCTION_ERROR) !=
+ VMXERR_ENTRY_INVALID_CONTROL_FIELD));
- if (unlikely(vmx->fail))
- vm_inst_error = vmcs_read32(VM_INSTRUCTION_ERROR);
+ leave_guest_mode(vcpu);
- vmx_switch_vmcs(vcpu, &vmx->vmcs01);
+ if (likely(!vmx->fail)) {
+ prepare_vmcs12(vcpu, vmcs12, exit_reason, exit_intr_info,
+ exit_qualification);
- if ((exit_reason == EXIT_REASON_EXTERNAL_INTERRUPT)
- && nested_exit_intr_ack_set(vcpu)) {
- int irq = kvm_cpu_get_interrupt(vcpu);
- WARN_ON(irq < 0);
- vmcs12->vm_exit_intr_info = irq |
- INTR_INFO_VALID_MASK | INTR_TYPE_EXT_INTR;
+ if (nested_vmx_store_msr(vcpu, vmcs12->vm_exit_msr_store_addr,
+ vmcs12->vm_exit_msr_store_count))
+ nested_vmx_abort(vcpu, VMX_ABORT_SAVE_GUEST_MSR_FAIL);
}
- trace_kvm_nested_vmexit_inject(vmcs12->vm_exit_reason,
- vmcs12->exit_qualification,
- vmcs12->idt_vectoring_info_field,
- vmcs12->vm_exit_intr_info,
- vmcs12->vm_exit_intr_error_code,
- KVM_ISA_VMX);
-
+ vmx_switch_vmcs(vcpu, &vmx->vmcs01);
vm_entry_controls_reset_shadow(vmx);
vm_exit_controls_reset_shadow(vmx);
vmx_segment_cache_clear(vmx);
@@ -10983,8 +11441,6 @@ static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
if (VMCS02_POOL_SIZE == 0)
nested_free_vmcs02(vmx, vmx->nested.current_vmptr);
- load_vmcs12_host_state(vcpu, vmcs12);
-
/* Update any VMCS fields that might have changed while L2 ran */
vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, vmx->msr_autoload.nr);
vmcs_write32(VM_ENTRY_MSR_LOAD_COUNT, vmx->msr_autoload.nr);
@@ -11013,16 +11469,16 @@ static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
/* Unpin physical memory we referred to in vmcs02 */
if (vmx->nested.apic_access_page) {
- nested_release_page(vmx->nested.apic_access_page);
+ kvm_release_page_dirty(vmx->nested.apic_access_page);
vmx->nested.apic_access_page = NULL;
}
if (vmx->nested.virtual_apic_page) {
- nested_release_page(vmx->nested.virtual_apic_page);
+ kvm_release_page_dirty(vmx->nested.virtual_apic_page);
vmx->nested.virtual_apic_page = NULL;
}
if (vmx->nested.pi_desc_page) {
kunmap(vmx->nested.pi_desc_page);
- nested_release_page(vmx->nested.pi_desc_page);
+ kvm_release_page_dirty(vmx->nested.pi_desc_page);
vmx->nested.pi_desc_page = NULL;
vmx->nested.pi_desc = NULL;
}
@@ -11033,21 +11489,57 @@ static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
*/
kvm_make_request(KVM_REQ_APIC_PAGE_RELOAD, vcpu);
- /*
- * Exiting from L2 to L1, we're now back to L1 which thinks it just
- * finished a VMLAUNCH or VMRESUME instruction, so we need to set the
- * success or failure flag accordingly.
- */
- if (unlikely(vmx->fail)) {
- vmx->fail = 0;
- nested_vmx_failValid(vcpu, vm_inst_error);
- } else
- nested_vmx_succeed(vcpu);
if (enable_shadow_vmcs)
vmx->nested.sync_shadow_vmcs = true;
/* in case we halted in L2 */
vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
+
+ if (likely(!vmx->fail)) {
+ /*
+ * TODO: SDM says that with acknowledge interrupt on
+ * exit, bit 31 of the VM-exit interrupt information
+ * (valid interrupt) is always set to 1 on
+ * EXIT_REASON_EXTERNAL_INTERRUPT, so we shouldn't
+ * need kvm_cpu_has_interrupt(). See the commit
+ * message for details.
+ */
+ if (nested_exit_intr_ack_set(vcpu) &&
+ exit_reason == EXIT_REASON_EXTERNAL_INTERRUPT &&
+ kvm_cpu_has_interrupt(vcpu)) {
+ int irq = kvm_cpu_get_interrupt(vcpu);
+ WARN_ON(irq < 0);
+ vmcs12->vm_exit_intr_info = irq |
+ INTR_INFO_VALID_MASK | INTR_TYPE_EXT_INTR;
+ }
+
+ trace_kvm_nested_vmexit_inject(vmcs12->vm_exit_reason,
+ vmcs12->exit_qualification,
+ vmcs12->idt_vectoring_info_field,
+ vmcs12->vm_exit_intr_info,
+ vmcs12->vm_exit_intr_error_code,
+ KVM_ISA_VMX);
+
+ load_vmcs12_host_state(vcpu, vmcs12);
+
+ return;
+ }
+
+ /*
+ * After an early L2 VM-entry failure, we're now back
+ * in L1 which thinks it just finished a VMLAUNCH or
+ * VMRESUME instruction, so we need to set the failure
+ * flag and the VM-instruction error field of the VMCS
+ * accordingly.
+ */
+ nested_vmx_failValid(vcpu, VMXERR_ENTRY_INVALID_CONTROL_FIELD);
+ /*
+ * The emulated instruction was already skipped in
+ * nested_vmx_run, but the updated RIP was never
+ * written back to the vmcs01.
+ */
+ skip_emulated_instruction(vcpu);
+ vmx->fail = 0;
}
/*
@@ -11134,7 +11626,8 @@ static int vmx_set_hv_timer(struct kvm_vcpu *vcpu, u64 guest_deadline_tsc)
vmx->hv_deadline_tsc = tscl + delta_tsc;
vmcs_set_bits(PIN_BASED_VM_EXEC_CONTROL,
PIN_BASED_VMX_PREEMPTION_TIMER);
- return 0;
+
+ return delta_tsc == 0;
}
static void vmx_cancel_hv_timer(struct kvm_vcpu *vcpu)
@@ -11197,14 +11690,14 @@ static int vmx_write_pml_buffer(struct kvm_vcpu *vcpu)
gpa = vmcs_read64(GUEST_PHYSICAL_ADDRESS) & ~0xFFFull;
- page = nested_get_page(vcpu, vmcs12->pml_address);
- if (!page)
+ page = kvm_vcpu_gpa_to_page(vcpu, vmcs12->pml_address);
+ if (is_error_page(page))
return 0;
pml_address = kmap(page);
pml_address[vmcs12->guest_pml_index--] = gpa;
kunmap(page);
- nested_release_page_clean(page);
+ kvm_release_page_clean(page);
}
return 0;
@@ -11217,6 +11710,37 @@ static void vmx_enable_log_dirty_pt_masked(struct kvm *kvm,
kvm_mmu_clear_dirty_pt_masked(kvm, memslot, offset, mask);
}
+static void __pi_post_block(struct kvm_vcpu *vcpu)
+{
+ struct pi_desc *pi_desc = vcpu_to_pi_desc(vcpu);
+ struct pi_desc old, new;
+ unsigned int dest;
+
+ do {
+ old.control = new.control = pi_desc->control;
+ WARN(old.nv != POSTED_INTR_WAKEUP_VECTOR,
+ "Wakeup handler not enabled while the VCPU is blocked\n");
+
+ dest = cpu_physical_id(vcpu->cpu);
+
+ if (x2apic_enabled())
+ new.ndst = dest;
+ else
+ new.ndst = (dest << 8) & 0xFF00;
+
+ /* set 'NV' to 'notification vector' */
+ new.nv = POSTED_INTR_VECTOR;
+ } while (cmpxchg64(&pi_desc->control, old.control,
+ new.control) != old.control);
+
+ if (!WARN_ON_ONCE(vcpu->pre_pcpu == -1)) {
+ spin_lock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
+ list_del(&vcpu->blocked_vcpu_list);
+ spin_unlock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
+ vcpu->pre_pcpu = -1;
+ }
+}
+
/*
* This routine does the following things for vCPU which is going
* to be blocked if VT-d PI is enabled.
@@ -11232,7 +11756,6 @@ static void vmx_enable_log_dirty_pt_masked(struct kvm *kvm,
*/
static int pi_pre_block(struct kvm_vcpu *vcpu)
{
- unsigned long flags;
unsigned int dest;
struct pi_desc old, new;
struct pi_desc *pi_desc = vcpu_to_pi_desc(vcpu);
@@ -11242,34 +11765,20 @@ static int pi_pre_block(struct kvm_vcpu *vcpu)
!kvm_vcpu_apicv_active(vcpu))
return 0;
- vcpu->pre_pcpu = vcpu->cpu;
- spin_lock_irqsave(&per_cpu(blocked_vcpu_on_cpu_lock,
- vcpu->pre_pcpu), flags);
- list_add_tail(&vcpu->blocked_vcpu_list,
- &per_cpu(blocked_vcpu_on_cpu,
- vcpu->pre_pcpu));
- spin_unlock_irqrestore(&per_cpu(blocked_vcpu_on_cpu_lock,
- vcpu->pre_pcpu), flags);
+ WARN_ON(irqs_disabled());
+ local_irq_disable();
+ if (!WARN_ON_ONCE(vcpu->pre_pcpu != -1)) {
+ vcpu->pre_pcpu = vcpu->cpu;
+ spin_lock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
+ list_add_tail(&vcpu->blocked_vcpu_list,
+ &per_cpu(blocked_vcpu_on_cpu,
+ vcpu->pre_pcpu));
+ spin_unlock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
+ }
do {
old.control = new.control = pi_desc->control;
- /*
- * We should not block the vCPU if
- * an interrupt is posted for it.
- */
- if (pi_test_on(pi_desc) == 1) {
- spin_lock_irqsave(&per_cpu(blocked_vcpu_on_cpu_lock,
- vcpu->pre_pcpu), flags);
- list_del(&vcpu->blocked_vcpu_list);
- spin_unlock_irqrestore(
- &per_cpu(blocked_vcpu_on_cpu_lock,
- vcpu->pre_pcpu), flags);
- vcpu->pre_pcpu = -1;
-
- return 1;
- }
-
WARN((pi_desc->sn == 1),
"Warning: SN field of posted-interrupts "
"is set before blocking\n");
@@ -11291,10 +11800,15 @@ static int pi_pre_block(struct kvm_vcpu *vcpu)
/* set 'NV' to 'wakeup vector' */
new.nv = POSTED_INTR_WAKEUP_VECTOR;
- } while (cmpxchg(&pi_desc->control, old.control,
- new.control) != old.control);
+ } while (cmpxchg64(&pi_desc->control, old.control,
+ new.control) != old.control);
- return 0;
+ /* We should not block the vCPU if an interrupt is posted for it. */
+ if (pi_test_on(pi_desc) == 1)
+ __pi_post_block(vcpu);
+
+ local_irq_enable();
+ return (vcpu->pre_pcpu == -1);
}
static int vmx_pre_block(struct kvm_vcpu *vcpu)
@@ -11310,44 +11824,13 @@ static int vmx_pre_block(struct kvm_vcpu *vcpu)
static void pi_post_block(struct kvm_vcpu *vcpu)
{
- struct pi_desc *pi_desc = vcpu_to_pi_desc(vcpu);
- struct pi_desc old, new;
- unsigned int dest;
- unsigned long flags;
-
- if (!kvm_arch_has_assigned_device(vcpu->kvm) ||
- !irq_remapping_cap(IRQ_POSTING_CAP) ||
- !kvm_vcpu_apicv_active(vcpu))
+ if (vcpu->pre_pcpu == -1)
return;
- do {
- old.control = new.control = pi_desc->control;
-
- dest = cpu_physical_id(vcpu->cpu);
-
- if (x2apic_enabled())
- new.ndst = dest;
- else
- new.ndst = (dest << 8) & 0xFF00;
-
- /* Allow posting non-urgent interrupts */
- new.sn = 0;
-
- /* set 'NV' to 'notification vector' */
- new.nv = POSTED_INTR_VECTOR;
- } while (cmpxchg(&pi_desc->control, old.control,
- new.control) != old.control);
-
- if(vcpu->pre_pcpu != -1) {
- spin_lock_irqsave(
- &per_cpu(blocked_vcpu_on_cpu_lock,
- vcpu->pre_pcpu), flags);
- list_del(&vcpu->blocked_vcpu_list);
- spin_unlock_irqrestore(
- &per_cpu(blocked_vcpu_on_cpu_lock,
- vcpu->pre_pcpu), flags);
- vcpu->pre_pcpu = -1;
- }
+ WARN_ON(irqs_disabled());
+ local_irq_disable();
+ __pi_post_block(vcpu);
+ local_irq_enable();
}
static void vmx_post_block(struct kvm_vcpu *vcpu)
@@ -11375,7 +11858,7 @@ static int vmx_update_pi_irte(struct kvm *kvm, unsigned int host_irq,
struct kvm_lapic_irq irq;
struct kvm_vcpu *vcpu;
struct vcpu_data vcpu_info;
- int idx, ret = -EINVAL;
+ int idx, ret = 0;
if (!kvm_arch_has_assigned_device(kvm) ||
!irq_remapping_cap(IRQ_POSTING_CAP) ||
@@ -11384,7 +11867,12 @@ static int vmx_update_pi_irte(struct kvm *kvm, unsigned int host_irq,
idx = srcu_read_lock(&kvm->irq_srcu);
irq_rt = srcu_dereference(kvm->irq_routing, &kvm->irq_srcu);
- BUG_ON(guest_irq >= irq_rt->nr_rt_entries);
+ if (guest_irq >= irq_rt->nr_rt_entries ||
+ hlist_empty(&irq_rt->map[guest_irq])) {
+ pr_warn_once("no route for guest_irq %u/%u (broken user space?)\n",
+ guest_irq, irq_rt->nr_rt_entries);
+ goto out;
+ }
hlist_for_each_entry(e, &irq_rt->map[guest_irq], link) {
if (e->type != KVM_IRQ_ROUTING_MSI)
@@ -11427,12 +11915,8 @@ static int vmx_update_pi_irte(struct kvm *kvm, unsigned int host_irq,
if (set)
ret = irq_set_vcpu_affinity(host_irq, &vcpu_info);
- else {
- /* suppress notification event before unposting */
- pi_set_sn(vcpu_to_pi_desc(vcpu));
+ else
ret = irq_set_vcpu_affinity(host_irq, NULL);
- pi_clear_sn(vcpu_to_pi_desc(vcpu));
- }
if (ret < 0) {
printk(KERN_INFO "%s: failed to update PI IRTE\n",
@@ -11503,8 +11987,6 @@ static struct kvm_x86_ops vmx_x86_ops __ro_after_init = {
.get_rflags = vmx_get_rflags,
.set_rflags = vmx_set_rflags,
- .get_pkru = vmx_get_pkru,
-
.tlb_flush = vmx_flush_tlb,
.run = vmx_vcpu_run,
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 0e846f0cb83b..03869eb7fcd6 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -54,6 +54,7 @@
#include <linux/kvm_irqfd.h>
#include <linux/irqbypass.h>
#include <linux/sched/stat.h>
+#include <linux/mem_encrypt.h>
#include <trace/events/kvm.h>
@@ -134,8 +135,6 @@ module_param(lapic_timer_advance_ns, uint, S_IRUGO | S_IWUSR);
static bool __read_mostly vector_hashing = true;
module_param(vector_hashing, bool, S_IRUGO);
-static bool __read_mostly backwards_tsc_observed = false;
-
#define KVM_NR_SHARED_MSRS 16
struct kvm_shared_msrs_global {
@@ -312,13 +311,13 @@ int kvm_set_apic_base(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
(MSR_IA32_APICBASE_ENABLE | X2APIC_ENABLE);
u64 new_state = msr_info->data &
(MSR_IA32_APICBASE_ENABLE | X2APIC_ENABLE);
- u64 reserved_bits = ((~0ULL) << cpuid_maxphyaddr(vcpu)) |
- 0x2ff | (guest_cpuid_has_x2apic(vcpu) ? 0 : X2APIC_ENABLE);
+ u64 reserved_bits = ((~0ULL) << cpuid_maxphyaddr(vcpu)) | 0x2ff |
+ (guest_cpuid_has(vcpu, X86_FEATURE_X2APIC) ? 0 : X2APIC_ENABLE);
+ if ((msr_info->data & reserved_bits) || new_state == X2APIC_ENABLE)
+ return 1;
if (!msr_info->host_initiated &&
- ((msr_info->data & reserved_bits) != 0 ||
- new_state == X2APIC_ENABLE ||
- (new_state == MSR_IA32_APICBASE_ENABLE &&
+ ((new_state == MSR_IA32_APICBASE_ENABLE &&
old_state == (MSR_IA32_APICBASE_ENABLE | X2APIC_ENABLE)) ||
(new_state == (MSR_IA32_APICBASE_ENABLE | X2APIC_ENABLE) &&
old_state == 0)))
@@ -391,15 +390,28 @@ static void kvm_multiple_exception(struct kvm_vcpu *vcpu,
kvm_make_request(KVM_REQ_EVENT, vcpu);
- if (!vcpu->arch.exception.pending) {
+ if (!vcpu->arch.exception.pending && !vcpu->arch.exception.injected) {
queue:
if (has_error && !is_protmode(vcpu))
has_error = false;
- vcpu->arch.exception.pending = true;
+ if (reinject) {
+ /*
+ * On vmentry, vcpu->arch.exception.pending is only
+ * true if an event injection was blocked by
+ * nested_run_pending. In that case, however,
+ * vcpu_enter_guest requests an immediate exit,
+ * and the guest shouldn't proceed far enough to
+ * need reinjection.
+ */
+ WARN_ON_ONCE(vcpu->arch.exception.pending);
+ vcpu->arch.exception.injected = true;
+ } else {
+ vcpu->arch.exception.pending = true;
+ vcpu->arch.exception.injected = false;
+ }
vcpu->arch.exception.has_error_code = has_error;
vcpu->arch.exception.nr = nr;
vcpu->arch.exception.error_code = error_code;
- vcpu->arch.exception.reinject = reinject;
return;
}
@@ -414,8 +426,13 @@ static void kvm_multiple_exception(struct kvm_vcpu *vcpu,
class2 = exception_class(nr);
if ((class1 == EXCPT_CONTRIBUTORY && class2 == EXCPT_CONTRIBUTORY)
|| (class1 == EXCPT_PF && class2 != EXCPT_BENIGN)) {
- /* generate double fault per SDM Table 5-5 */
+ /*
+ * Generate double fault per SDM Table 5-5. Set
+ * exception.pending = true so that the double fault
+ * can trigger a nested vmexit.
+ */
vcpu->arch.exception.pending = true;
+ vcpu->arch.exception.injected = false;
vcpu->arch.exception.has_error_code = true;
vcpu->arch.exception.nr = DF_VECTOR;
vcpu->arch.exception.error_code = 0;
@@ -452,7 +469,12 @@ EXPORT_SYMBOL_GPL(kvm_complete_insn_gp);
void kvm_inject_page_fault(struct kvm_vcpu *vcpu, struct x86_exception *fault)
{
++vcpu->stat.pf_guest;
- vcpu->arch.cr2 = fault->address;
+ vcpu->arch.exception.nested_apf =
+ is_guest_mode(vcpu) && fault->async_page_fault;
+ if (vcpu->arch.exception.nested_apf)
+ vcpu->arch.apf.nested_apf_token = fault->address;
+ else
+ vcpu->arch.cr2 = fault->address;
kvm_queue_exception_e(vcpu, PF_VECTOR, fault->error_code);
}
EXPORT_SYMBOL_GPL(kvm_inject_page_fault);
@@ -594,8 +616,8 @@ bool pdptrs_changed(struct kvm_vcpu *vcpu)
(unsigned long *)&vcpu->arch.regs_avail))
return true;
- gfn = (kvm_read_cr3(vcpu) & ~31u) >> PAGE_SHIFT;
- offset = (kvm_read_cr3(vcpu) & ~31u) & (PAGE_SIZE - 1);
+ gfn = (kvm_read_cr3(vcpu) & 0xffffffe0ul) >> PAGE_SHIFT;
+ offset = (kvm_read_cr3(vcpu) & 0xffffffe0ul) & (PAGE_SIZE - 1);
r = kvm_read_nested_guest_page(vcpu, gfn, pdpte, offset, sizeof(pdpte),
PFERR_USER_MASK | PFERR_WRITE_MASK);
if (r < 0)
@@ -751,19 +773,22 @@ int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
if (cr4 & CR4_RESERVED_BITS)
return 1;
- if (!guest_cpuid_has_xsave(vcpu) && (cr4 & X86_CR4_OSXSAVE))
+ if (!guest_cpuid_has(vcpu, X86_FEATURE_XSAVE) && (cr4 & X86_CR4_OSXSAVE))
+ return 1;
+
+ if (!guest_cpuid_has(vcpu, X86_FEATURE_SMEP) && (cr4 & X86_CR4_SMEP))
return 1;
- if (!guest_cpuid_has_smep(vcpu) && (cr4 & X86_CR4_SMEP))
+ if (!guest_cpuid_has(vcpu, X86_FEATURE_SMAP) && (cr4 & X86_CR4_SMAP))
return 1;
- if (!guest_cpuid_has_smap(vcpu) && (cr4 & X86_CR4_SMAP))
+ if (!guest_cpuid_has(vcpu, X86_FEATURE_FSGSBASE) && (cr4 & X86_CR4_FSGSBASE))
return 1;
- if (!guest_cpuid_has_fsgsbase(vcpu) && (cr4 & X86_CR4_FSGSBASE))
+ if (!guest_cpuid_has(vcpu, X86_FEATURE_PKU) && (cr4 & X86_CR4_PKE))
return 1;
- if (!guest_cpuid_has_pku(vcpu) && (cr4 & X86_CR4_PKE))
+ if (!guest_cpuid_has(vcpu, X86_FEATURE_LA57) && (cr4 & X86_CR4_LA57))
return 1;
if (is_long_mode(vcpu)) {
@@ -776,7 +801,7 @@ int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
return 1;
if ((cr4 & X86_CR4_PCIDE) && !(old_cr4 & X86_CR4_PCIDE)) {
- if (!guest_cpuid_has_pcid(vcpu))
+ if (!guest_cpuid_has(vcpu, X86_FEATURE_PCID))
return 1;
/* PCID can not be enabled when cr3[11:0]!=000H or EFER.LMA=0 */
@@ -810,10 +835,10 @@ int kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
return 0;
}
- if (is_long_mode(vcpu)) {
- if (cr3 & CR3_L_MODE_RESERVED_BITS)
- return 1;
- } else if (is_pae(vcpu) && is_paging(vcpu) &&
+ if (is_long_mode(vcpu) &&
+ (cr3 & rsvd_bits(cpuid_maxphyaddr(vcpu), 62)))
+ return 1;
+ else if (is_pae(vcpu) && is_paging(vcpu) &&
!load_pdptrs(vcpu, vcpu->arch.walk_mmu, cr3))
return 1;
@@ -880,7 +905,7 @@ static u64 kvm_dr6_fixed(struct kvm_vcpu *vcpu)
{
u64 fixed = DR6_FIXED_1;
- if (!guest_cpuid_has_rtm(vcpu))
+ if (!guest_cpuid_has(vcpu, X86_FEATURE_RTM))
fixed |= DR6_RTM;
return fixed;
}
@@ -990,6 +1015,7 @@ static u32 emulated_msrs[] = {
MSR_KVM_SYSTEM_TIME_NEW, MSR_KVM_WALL_CLOCK_NEW,
HV_X64_MSR_GUEST_OS_ID, HV_X64_MSR_HYPERCALL,
HV_X64_MSR_TIME_REF_COUNT, HV_X64_MSR_REFERENCE_TSC,
+ HV_X64_MSR_TSC_FREQUENCY, HV_X64_MSR_APIC_FREQUENCY,
HV_X64_MSR_CRASH_P0, HV_X64_MSR_CRASH_P1, HV_X64_MSR_CRASH_P2,
HV_X64_MSR_CRASH_P3, HV_X64_MSR_CRASH_P4, HV_X64_MSR_CRASH_CTL,
HV_X64_MSR_RESET,
@@ -1018,21 +1044,11 @@ bool kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer)
if (efer & efer_reserved_bits)
return false;
- if (efer & EFER_FFXSR) {
- struct kvm_cpuid_entry2 *feat;
-
- feat = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
- if (!feat || !(feat->edx & bit(X86_FEATURE_FXSR_OPT)))
+ if (efer & EFER_FFXSR && !guest_cpuid_has(vcpu, X86_FEATURE_FXSR_OPT))
return false;
- }
- if (efer & EFER_SVME) {
- struct kvm_cpuid_entry2 *feat;
-
- feat = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
- if (!feat || !(feat->ecx & bit(X86_FEATURE_SVM)))
+ if (efer & EFER_SVME && !guest_cpuid_has(vcpu, X86_FEATURE_SVM))
return false;
- }
return true;
}
@@ -1080,7 +1096,7 @@ int kvm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr)
case MSR_KERNEL_GS_BASE:
case MSR_CSTAR:
case MSR_LSTAR:
- if (is_noncanonical_address(msr->data))
+ if (is_noncanonical_address(msr->data, vcpu))
return 1;
break;
case MSR_IA32_SYSENTER_EIP:
@@ -1097,7 +1113,7 @@ int kvm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr)
* value, and that something deterministic happens if the guest
* invokes 64-bit SYSENTER.
*/
- msr->data = get_canonical(msr->data);
+ msr->data = get_canonical(msr->data, vcpu_virt_addr_bits(vcpu));
}
return kvm_x86_ops->set_msr(vcpu, msr);
}
@@ -1530,8 +1546,9 @@ void kvm_write_tsc(struct kvm_vcpu *vcpu, struct msr_data *msr)
vcpu->arch.this_tsc_nsec = kvm->arch.cur_tsc_nsec;
vcpu->arch.this_tsc_write = kvm->arch.cur_tsc_write;
- if (guest_cpuid_has_tsc_adjust(vcpu) && !msr->host_initiated)
+ if (!msr->host_initiated && guest_cpuid_has(vcpu, X86_FEATURE_TSC_ADJUST))
update_ia32_tsc_adjust_msr(vcpu, offset);
+
kvm_vcpu_write_tsc_offset(vcpu, offset);
raw_spin_unlock_irqrestore(&kvm->arch.tsc_write_lock, flags);
@@ -1719,7 +1736,7 @@ static void pvclock_update_vm_gtod_copy(struct kvm *kvm)
&ka->master_cycle_now);
ka->use_master_clock = host_tsc_clocksource && vcpus_matched
- && !backwards_tsc_observed
+ && !ka->backwards_tsc_observed
&& !ka->boot_vcpu_runs_old_kvmclock;
if (ka->use_master_clock)
@@ -2060,8 +2077,8 @@ static int kvm_pv_enable_async_pf(struct kvm_vcpu *vcpu, u64 data)
{
gpa_t gpa = data & ~0x3f;
- /* Bits 2:5 are reserved, Should be zero */
- if (data & 0x3c)
+ /* Bits 3:5 are reserved, Should be zero */
+ if (data & 0x38)
return 1;
vcpu->arch.apf.msr_val = data;
@@ -2077,6 +2094,7 @@ static int kvm_pv_enable_async_pf(struct kvm_vcpu *vcpu, u64 data)
return 1;
vcpu->arch.apf.send_user_only = !(data & KVM_ASYNC_PF_SEND_ALWAYS);
+ vcpu->arch.apf.delivery_as_pf_vmexit = data & KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT;
kvm_async_pf_wakeup_all(vcpu);
return 0;
}
@@ -2180,7 +2198,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
kvm_set_lapic_tscdeadline_msr(vcpu, data);
break;
case MSR_IA32_TSC_ADJUST:
- if (guest_cpuid_has_tsc_adjust(vcpu)) {
+ if (guest_cpuid_has(vcpu, X86_FEATURE_TSC_ADJUST)) {
if (!msr_info->host_initiated) {
s64 adj = data - vcpu->arch.ia32_tsc_adjust_msr;
adjust_tsc_offset_guest(vcpu, adj);
@@ -2302,12 +2320,12 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
vcpu_unimpl(vcpu, "ignored wrmsr: 0x%x data 0x%llx\n", msr, data);
break;
case MSR_AMD64_OSVW_ID_LENGTH:
- if (!guest_cpuid_has_osvw(vcpu))
+ if (!guest_cpuid_has(vcpu, X86_FEATURE_OSVW))
return 1;
vcpu->arch.osvw.length = data;
break;
case MSR_AMD64_OSVW_STATUS:
- if (!guest_cpuid_has_osvw(vcpu))
+ if (!guest_cpuid_has(vcpu, X86_FEATURE_OSVW))
return 1;
vcpu->arch.osvw.status = data;
break;
@@ -2532,12 +2550,12 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
msr_info->data = 0xbe702111;
break;
case MSR_AMD64_OSVW_ID_LENGTH:
- if (!guest_cpuid_has_osvw(vcpu))
+ if (!guest_cpuid_has(vcpu, X86_FEATURE_OSVW))
return 1;
msr_info->data = vcpu->arch.osvw.length;
break;
case MSR_AMD64_OSVW_STATUS:
- if (!guest_cpuid_has_osvw(vcpu))
+ if (!guest_cpuid_has(vcpu, X86_FEATURE_OSVW))
return 1;
msr_info->data = vcpu->arch.osvw.status;
break;
@@ -2661,6 +2679,8 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
case KVM_CAP_HYPERV_VAPIC:
case KVM_CAP_HYPERV_SPIN:
case KVM_CAP_HYPERV_SYNIC:
+ case KVM_CAP_HYPERV_SYNIC2:
+ case KVM_CAP_HYPERV_VP_INDEX:
case KVM_CAP_PCI_SEGMENT:
case KVM_CAP_DEBUGREGS:
case KVM_CAP_X86_ROBUST_SINGLESTEP:
@@ -2841,10 +2861,10 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
kvm_vcpu_write_tsc_offset(vcpu, offset);
vcpu->arch.tsc_catchup = 1;
}
- if (kvm_lapic_hv_timer_in_use(vcpu) &&
- kvm_x86_ops->set_hv_timer(vcpu,
- kvm_get_lapic_target_expiration_tsc(vcpu)))
- kvm_lapic_switch_to_sw_timer(vcpu);
+
+ if (kvm_lapic_hv_timer_in_use(vcpu))
+ kvm_lapic_restart_hv_timer(vcpu);
+
/*
* On a host with synchronized TSC, there is no need to update
* kvmclock on vcpu->cpu migration
@@ -2875,6 +2895,10 @@ static void kvm_steal_time_set_preempted(struct kvm_vcpu *vcpu)
void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
{
int idx;
+
+ if (vcpu->preempted)
+ vcpu->arch.preempted_in_kernel = !kvm_x86_ops->get_cpl(vcpu);
+
/*
* Disable page faults because we're in atomic context here.
* kvm_write_guest_offset_cached() would call might_fault()
@@ -3067,8 +3091,14 @@ static void kvm_vcpu_ioctl_x86_get_vcpu_events(struct kvm_vcpu *vcpu,
struct kvm_vcpu_events *events)
{
process_nmi(vcpu);
+ /*
+ * FIXME: pass injected and pending separately. This is only
+ * needed for nested virtualization, whose state cannot be
+ * migrated yet. For now we can combine them.
+ */
events->exception.injected =
- vcpu->arch.exception.pending &&
+ (vcpu->arch.exception.pending ||
+ vcpu->arch.exception.injected) &&
!kvm_exception_is_soft(vcpu->arch.exception.nr);
events->exception.nr = vcpu->arch.exception.nr;
events->exception.has_error_code = vcpu->arch.exception.has_error_code;
@@ -3123,6 +3153,7 @@ static int kvm_vcpu_ioctl_x86_set_vcpu_events(struct kvm_vcpu *vcpu,
return -EINVAL;
process_nmi(vcpu);
+ vcpu->arch.exception.injected = false;
vcpu->arch.exception.pending = events->exception.injected;
vcpu->arch.exception.nr = events->exception.nr;
vcpu->arch.exception.has_error_code = events->exception.has_error_code;
@@ -3153,15 +3184,18 @@ static int kvm_vcpu_ioctl_x86_set_vcpu_events(struct kvm_vcpu *vcpu,
kvm_set_hflags(vcpu, hflags);
vcpu->arch.smi_pending = events->smi.pending;
- if (events->smi.smm_inside_nmi)
- vcpu->arch.hflags |= HF_SMM_INSIDE_NMI_MASK;
- else
- vcpu->arch.hflags &= ~HF_SMM_INSIDE_NMI_MASK;
- if (lapic_in_kernel(vcpu)) {
- if (events->smi.latched_init)
- set_bit(KVM_APIC_INIT, &vcpu->arch.apic->pending_events);
+
+ if (events->smi.smm) {
+ if (events->smi.smm_inside_nmi)
+ vcpu->arch.hflags |= HF_SMM_INSIDE_NMI_MASK;
else
- clear_bit(KVM_APIC_INIT, &vcpu->arch.apic->pending_events);
+ vcpu->arch.hflags &= ~HF_SMM_INSIDE_NMI_MASK;
+ if (lapic_in_kernel(vcpu)) {
+ if (events->smi.latched_init)
+ set_bit(KVM_APIC_INIT, &vcpu->arch.apic->pending_events);
+ else
+ clear_bit(KVM_APIC_INIT, &vcpu->arch.apic->pending_events);
+ }
}
}
@@ -3236,7 +3270,12 @@ static void fill_xsave(u8 *dest, struct kvm_vcpu *vcpu)
u32 size, offset, ecx, edx;
cpuid_count(XSTATE_CPUID, index,
&size, &offset, &ecx, &edx);
- memcpy(dest + offset, src, size);
+ if (feature == XFEATURE_MASK_PKRU)
+ memcpy(dest + offset, &vcpu->arch.pkru,
+ sizeof(vcpu->arch.pkru));
+ else
+ memcpy(dest + offset, src, size);
+
}
valid -= feature;
@@ -3274,7 +3313,11 @@ static void load_xsave(struct kvm_vcpu *vcpu, u8 *src)
u32 size, offset, ecx, edx;
cpuid_count(XSTATE_CPUID, index,
&size, &offset, &ecx, &edx);
- memcpy(dest, src + offset, size);
+ if (feature == XFEATURE_MASK_PKRU)
+ memcpy(&vcpu->arch.pkru, src + offset,
+ sizeof(vcpu->arch.pkru));
+ else
+ memcpy(dest, src + offset, size);
}
valid -= feature;
@@ -3384,10 +3427,14 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
return -EINVAL;
switch (cap->cap) {
+ case KVM_CAP_HYPERV_SYNIC2:
+ if (cap->args[0])
+ return -EINVAL;
case KVM_CAP_HYPERV_SYNIC:
if (!irqchip_in_kernel(vcpu->kvm))
return -EINVAL;
- return kvm_hv_activate_synic(vcpu);
+ return kvm_hv_activate_synic(vcpu, cap->cap ==
+ KVM_CAP_HYPERV_SYNIC2);
default:
return -EINVAL;
}
@@ -4188,9 +4235,15 @@ long kvm_arch_vm_ioctl(struct file *filp,
goto out;
r = 0;
+ /*
+ * TODO: userspace has to take care of races with VCPU_RUN, so
+ * kvm_gen_update_masterclock() can be cut down to locked
+ * pvclock_update_vm_gtod_copy().
+ */
+ kvm_gen_update_masterclock(kvm);
now_ns = get_kvmclock_ns(kvm);
kvm->arch.kvmclock_offset += user_ns.clock - now_ns;
- kvm_gen_update_masterclock(kvm);
+ kvm_make_all_cpus_request(kvm, KVM_REQ_CLOCK_UPDATE);
break;
}
case KVM_GET_CLOCK: {
@@ -4642,25 +4695,18 @@ static int emulator_read_write_onepage(unsigned long addr, void *val,
*/
if (vcpu->arch.gpa_available &&
emulator_can_use_gpa(ctxt) &&
- vcpu_is_mmio_gpa(vcpu, addr, exception->address, write) &&
- (addr & ~PAGE_MASK) == (exception->address & ~PAGE_MASK)) {
- gpa = exception->address;
- goto mmio;
+ (addr & ~PAGE_MASK) == (vcpu->arch.gpa_val & ~PAGE_MASK)) {
+ gpa = vcpu->arch.gpa_val;
+ ret = vcpu_is_mmio_gpa(vcpu, addr, gpa, write);
+ } else {
+ ret = vcpu_mmio_gva_to_gpa(vcpu, addr, &gpa, exception, write);
+ if (ret < 0)
+ return X86EMUL_PROPAGATE_FAULT;
}
- ret = vcpu_mmio_gva_to_gpa(vcpu, addr, &gpa, exception, write);
-
- if (ret < 0)
- return X86EMUL_PROPAGATE_FAULT;
-
- /* For APIC access vmexit */
- if (ret)
- goto mmio;
-
- if (ops->read_write_emulate(vcpu, gpa, val, bytes))
+ if (!ret && ops->read_write_emulate(vcpu, gpa, val, bytes))
return X86EMUL_CONTINUE;
-mmio:
/*
* Is this MMIO handled locally?
*/
@@ -5198,10 +5244,10 @@ static int emulator_intercept(struct x86_emulate_ctxt *ctxt,
return kvm_x86_ops->check_intercept(emul_to_vcpu(ctxt), info, stage);
}
-static void emulator_get_cpuid(struct x86_emulate_ctxt *ctxt,
- u32 *eax, u32 *ebx, u32 *ecx, u32 *edx)
+static bool emulator_get_cpuid(struct x86_emulate_ctxt *ctxt,
+ u32 *eax, u32 *ebx, u32 *ecx, u32 *edx, bool check_limit)
{
- kvm_cpuid(emul_to_vcpu(ctxt), eax, ebx, ecx, edx);
+ return kvm_cpuid(emul_to_vcpu(ctxt), eax, ebx, ecx, edx, check_limit);
}
static ulong emulator_read_gpr(struct x86_emulate_ctxt *ctxt, unsigned reg)
@@ -6011,7 +6057,7 @@ static void kvm_set_mmio_spte_mask(void)
mask &= ~1ull;
#endif
- kvm_mmu_set_mmio_spte_mask(mask);
+ kvm_mmu_set_mmio_spte_mask(mask, mask);
}
#ifdef CONFIG_X86_64
@@ -6097,7 +6143,7 @@ int kvm_arch_init(void *opaque)
kvm_mmu_set_mask_ptes(PT_USER_MASK, PT_ACCESSED_MASK,
PT_DIRTY_MASK, PT64_NX_MASK, 0,
- PT_PRESENT_MASK, 0);
+ PT_PRESENT_MASK, 0, sme_me_mask);
kvm_timer_init();
perf_register_guest_info_callbacks(&kvm_guest_cbs);
@@ -6199,6 +6245,7 @@ static void kvm_pv_kick_cpu_op(struct kvm *kvm, unsigned long flags, int apicid)
lapic_irq.shorthand = 0;
lapic_irq.dest_mode = 0;
+ lapic_irq.level = 0;
lapic_irq.dest_id = apicid;
lapic_irq.msi_redir_hint = false;
@@ -6332,11 +6379,42 @@ static int inject_pending_event(struct kvm_vcpu *vcpu, bool req_int_win)
int r;
/* try to reinject previous events if any */
+ if (vcpu->arch.exception.injected) {
+ kvm_x86_ops->queue_exception(vcpu);
+ return 0;
+ }
+
+ /*
+ * Exceptions must be injected immediately, or the exception
+ * frame will have the address of the NMI or interrupt handler.
+ */
+ if (!vcpu->arch.exception.pending) {
+ if (vcpu->arch.nmi_injected) {
+ kvm_x86_ops->set_nmi(vcpu);
+ return 0;
+ }
+
+ if (vcpu->arch.interrupt.pending) {
+ kvm_x86_ops->set_irq(vcpu);
+ return 0;
+ }
+ }
+
+ if (is_guest_mode(vcpu) && kvm_x86_ops->check_nested_events) {
+ r = kvm_x86_ops->check_nested_events(vcpu, req_int_win);
+ if (r != 0)
+ return r;
+ }
+
+ /* try to inject new event if pending */
if (vcpu->arch.exception.pending) {
trace_kvm_inj_exception(vcpu->arch.exception.nr,
vcpu->arch.exception.has_error_code,
vcpu->arch.exception.error_code);
+ vcpu->arch.exception.pending = false;
+ vcpu->arch.exception.injected = true;
+
if (exception_type(vcpu->arch.exception.nr) == EXCPT_FAULT)
__kvm_set_rflags(vcpu, kvm_get_rflags(vcpu) |
X86_EFLAGS_RF);
@@ -6347,31 +6425,8 @@ static int inject_pending_event(struct kvm_vcpu *vcpu, bool req_int_win)
kvm_update_dr7(vcpu);
}
- kvm_x86_ops->queue_exception(vcpu, vcpu->arch.exception.nr,
- vcpu->arch.exception.has_error_code,
- vcpu->arch.exception.error_code,
- vcpu->arch.exception.reinject);
- return 0;
- }
-
- if (vcpu->arch.nmi_injected) {
- kvm_x86_ops->set_nmi(vcpu);
- return 0;
- }
-
- if (vcpu->arch.interrupt.pending) {
- kvm_x86_ops->set_irq(vcpu);
- return 0;
- }
-
- if (is_guest_mode(vcpu) && kvm_x86_ops->check_nested_events) {
- r = kvm_x86_ops->check_nested_events(vcpu, req_int_win);
- if (r != 0)
- return r;
- }
-
- /* try to inject new event if pending */
- if (vcpu->arch.smi_pending && !is_smm(vcpu)) {
+ kvm_x86_ops->queue_exception(vcpu);
+ } else if (vcpu->arch.smi_pending && !is_smm(vcpu)) {
vcpu->arch.smi_pending = false;
enter_smm(vcpu);
} else if (vcpu->arch.nmi_pending && kvm_x86_ops->nmi_allowed(vcpu)) {
@@ -6588,7 +6643,7 @@ static void enter_smm(struct kvm_vcpu *vcpu)
trace_kvm_enter_smm(vcpu->vcpu_id, vcpu->arch.smbase, true);
vcpu->arch.hflags |= HF_SMM_MASK;
memset(buf, 0, 512);
- if (guest_cpuid_has_longmode(vcpu))
+ if (guest_cpuid_has(vcpu, X86_FEATURE_LM))
enter_smm_save_state_64(vcpu, buf);
else
enter_smm_save_state_32(vcpu, buf);
@@ -6640,7 +6695,7 @@ static void enter_smm(struct kvm_vcpu *vcpu)
kvm_set_segment(vcpu, &ds, VCPU_SREG_GS);
kvm_set_segment(vcpu, &ds, VCPU_SREG_SS);
- if (guest_cpuid_has_longmode(vcpu))
+ if (guest_cpuid_has(vcpu, X86_FEATURE_LM))
kvm_x86_ops->set_efer(vcpu, 0);
kvm_update_cpuid(vcpu);
@@ -6708,17 +6763,6 @@ void kvm_vcpu_reload_apic_access_page(struct kvm_vcpu *vcpu)
}
EXPORT_SYMBOL_GPL(kvm_vcpu_reload_apic_access_page);
-void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm,
- unsigned long address)
-{
- /*
- * The physical address of apic access page is stored in the VMCS.
- * Update it when it becomes invalid.
- */
- if (address == gfn_to_hva(kvm, APIC_DEFAULT_PHYS_BASE >> PAGE_SHIFT))
- kvm_make_all_cpus_request(kvm, KVM_REQ_APIC_PAGE_RELOAD);
-}
-
/*
* Returns 1 to let vcpu_run() continue the guest execution loop without
* exiting to the userspace. Otherwise, the value will be returned to the
@@ -6733,7 +6777,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
bool req_immediate_exit = false;
- if (vcpu->requests) {
+ if (kvm_request_pending(vcpu)) {
if (kvm_check_request(KVM_REQ_MMU_RELOAD, vcpu))
kvm_mmu_unload(vcpu);
if (kvm_check_request(KVM_REQ_MIGRATE_TIMER, vcpu))
@@ -6758,6 +6802,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
}
if (kvm_check_request(KVM_REQ_TRIPLE_FAULT, vcpu)) {
vcpu->run->exit_reason = KVM_EXIT_SHUTDOWN;
+ vcpu->mmio_needed = 0;
r = 0;
goto out;
}
@@ -6846,6 +6891,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
kvm_x86_ops->enable_nmi_window(vcpu);
if (kvm_cpu_has_injectable_intr(vcpu) || req_int_win)
kvm_x86_ops->enable_irq_window(vcpu);
+ WARN_ON(vcpu->arch.exception.pending);
}
if (kvm_lapic_enabled(vcpu)) {
@@ -6897,7 +6943,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
kvm_x86_ops->sync_pir_to_irr(vcpu);
}
- if (vcpu->mode == EXITING_GUEST_MODE || vcpu->requests
+ if (vcpu->mode == EXITING_GUEST_MODE || kvm_request_pending(vcpu)
|| need_resched() || signal_pending(current)) {
vcpu->mode = OUTSIDE_GUEST_MODE;
smp_wmb();
@@ -6988,6 +7034,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
if (vcpu->arch.apic_attention)
kvm_lapic_sync_from_vapic(vcpu);
+ vcpu->arch.gpa_available = false;
r = kvm_x86_ops->handle_exit(vcpu);
return r;
@@ -7178,16 +7225,25 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
int r;
sigset_t sigsaved;
- fpu__activate_curr(fpu);
+ fpu__initialize(fpu);
if (vcpu->sigset_active)
sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);
if (unlikely(vcpu->arch.mp_state == KVM_MP_STATE_UNINITIALIZED)) {
+ if (kvm_run->immediate_exit) {
+ r = -EINTR;
+ goto out;
+ }
kvm_vcpu_block(vcpu);
kvm_apic_accept_events(vcpu);
kvm_clear_request(KVM_REQ_UNHALT, vcpu);
r = -EAGAIN;
+ if (signal_pending(current)) {
+ r = -EINTR;
+ vcpu->run->exit_reason = KVM_EXIT_INTR;
+ ++vcpu->stat.signal_exits;
+ }
goto out;
}
@@ -7406,7 +7462,13 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
int pending_vec, max_bits, idx;
struct desc_ptr dt;
- if (!guest_cpuid_has_xsave(vcpu) && (sregs->cr4 & X86_CR4_OSXSAVE))
+ if (!guest_cpuid_has(vcpu, X86_FEATURE_XSAVE) &&
+ (sregs->cr4 & X86_CR4_OSXSAVE))
+ return -EINVAL;
+
+ apic_base_msr.data = sregs->apic_base;
+ apic_base_msr.host_initiated = true;
+ if (kvm_set_apic_base(vcpu, &apic_base_msr))
return -EINVAL;
dt.size = sregs->idt.limit;
@@ -7425,9 +7487,6 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
mmu_reset_needed |= vcpu->arch.efer != sregs->efer;
kvm_x86_ops->set_efer(vcpu, sregs->efer);
- apic_base_msr.data = sregs->apic_base;
- apic_base_msr.host_initiated = true;
- kvm_set_apic_base(vcpu, &apic_base_msr);
mmu_reset_needed |= kvm_read_cr0(vcpu) != sregs->cr0;
kvm_x86_ops->set_cr0(vcpu, sregs->cr0);
@@ -7616,7 +7675,9 @@ void kvm_load_guest_fpu(struct kvm_vcpu *vcpu)
*/
vcpu->guest_fpu_loaded = 1;
__kernel_fpu_begin();
- __copy_kernel_to_fpregs(&vcpu->arch.guest_fpu.state);
+ /* PKRU is separately restored in kvm_x86_ops->run. */
+ __copy_kernel_to_fpregs(&vcpu->arch.guest_fpu.state,
+ ~XFEATURE_MASK_PKRU);
trace_kvm_fpu(1);
}
@@ -7676,6 +7737,8 @@ void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
struct msr_data msr;
struct kvm *kvm = vcpu->kvm;
+ kvm_hv_vcpu_postcreate(vcpu);
+
if (vcpu_load(vcpu))
return;
msr.data = 0x0;
@@ -7714,6 +7777,7 @@ void kvm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event)
vcpu->arch.nmi_injected = false;
kvm_clear_interrupt_queue(vcpu);
kvm_clear_exception_queue(vcpu);
+ vcpu->arch.exception.pending = false;
memset(vcpu->arch.db, 0, sizeof(vcpu->arch.db));
kvm_update_dr0123(vcpu);
@@ -7829,8 +7893,8 @@ int kvm_arch_hardware_enable(void)
*/
if (backwards_tsc) {
u64 delta_cyc = max_tsc - local_tsc;
- backwards_tsc_observed = true;
list_for_each_entry(kvm, &vm_list, vm_list) {
+ kvm->arch.backwards_tsc_observed = true;
kvm_for_each_vcpu(i, vcpu, kvm) {
vcpu->arch.tsc_offset_adjustment += delta_cyc;
vcpu->arch.last_host_tsc = local_tsc;
@@ -7916,7 +7980,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
BUG_ON(vcpu->kvm == NULL);
kvm = vcpu->kvm;
- vcpu->arch.apicv_active = kvm_x86_ops->get_enable_apicv();
+ vcpu->arch.apicv_active = kvm_x86_ops->get_enable_apicv(vcpu);
vcpu->arch.pv.pv_unhalted = false;
vcpu->arch.emulate_ctxt.ops = &emulate_ops;
if (!irqchip_in_kernel(kvm) || kvm_vcpu_is_reset_bsp(vcpu))
@@ -7973,6 +8037,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
kvm_pmu_init(vcpu);
vcpu->arch.pending_external_vector = -1;
+ vcpu->arch.preempted_in_kernel = false;
kvm_hv_vcpu_init(vcpu);
@@ -8396,6 +8461,9 @@ static inline bool kvm_vcpu_has_events(struct kvm_vcpu *vcpu)
if (vcpu->arch.pv.pv_unhalted)
return true;
+ if (vcpu->arch.exception.pending)
+ return true;
+
if (kvm_test_request(KVM_REQ_NMI, vcpu) ||
(vcpu->arch.nmi_pending &&
kvm_x86_ops->nmi_allowed(vcpu)))
@@ -8420,6 +8488,11 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
return kvm_vcpu_running(vcpu) || kvm_vcpu_has_events(vcpu);
}
+bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu)
+{
+ return vcpu->arch.preempted_in_kernel;
+}
+
int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
{
return kvm_vcpu_exiting_guest_mode(vcpu) == IN_GUEST_MODE;
@@ -8558,6 +8631,13 @@ static int apf_put_user(struct kvm_vcpu *vcpu, u32 val)
sizeof(val));
}
+static int apf_get_user(struct kvm_vcpu *vcpu, u32 *val)
+{
+
+ return kvm_read_guest_cached(vcpu->kvm, &vcpu->arch.apf.data, val,
+ sizeof(u32));
+}
+
void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
struct kvm_async_pf *work)
{
@@ -8576,6 +8656,7 @@ void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
fault.error_code = 0;
fault.nested_page_fault = false;
fault.address = work->arch.token;
+ fault.async_page_fault = true;
kvm_inject_page_fault(vcpu, &fault);
}
}
@@ -8584,6 +8665,7 @@ void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
struct kvm_async_pf *work)
{
struct x86_exception fault;
+ u32 val;
if (work->wakeup_all)
work->arch.token = ~0; /* broadcast wakeup */
@@ -8591,14 +8673,26 @@ void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
kvm_del_async_pf_gfn(vcpu, work->arch.gfn);
trace_kvm_async_pf_ready(work->arch.token, work->gva);
- if ((vcpu->arch.apf.msr_val & KVM_ASYNC_PF_ENABLED) &&
- !apf_put_user(vcpu, KVM_PV_REASON_PAGE_READY)) {
- fault.vector = PF_VECTOR;
- fault.error_code_valid = true;
- fault.error_code = 0;
- fault.nested_page_fault = false;
- fault.address = work->arch.token;
- kvm_inject_page_fault(vcpu, &fault);
+ if (vcpu->arch.apf.msr_val & KVM_ASYNC_PF_ENABLED &&
+ !apf_get_user(vcpu, &val)) {
+ if (val == KVM_PV_REASON_PAGE_NOT_PRESENT &&
+ vcpu->arch.exception.pending &&
+ vcpu->arch.exception.nr == PF_VECTOR &&
+ !apf_put_user(vcpu, 0)) {
+ vcpu->arch.exception.injected = false;
+ vcpu->arch.exception.pending = false;
+ vcpu->arch.exception.nr = 0;
+ vcpu->arch.exception.has_error_code = false;
+ vcpu->arch.exception.error_code = 0;
+ } else if (!apf_put_user(vcpu, KVM_PV_REASON_PAGE_READY)) {
+ fault.vector = PF_VECTOR;
+ fault.error_code_valid = true;
+ fault.error_code = 0;
+ fault.nested_page_fault = false;
+ fault.address = work->arch.token;
+ fault.async_page_fault = true;
+ kvm_inject_page_fault(vcpu, &fault);
+ }
}
vcpu->arch.apf.halted = false;
vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h
index 612067074905..51e349cf5f45 100644
--- a/arch/x86/kvm/x86.h
+++ b/arch/x86/kvm/x86.h
@@ -11,7 +11,7 @@
static inline void kvm_clear_exception_queue(struct kvm_vcpu *vcpu)
{
- vcpu->arch.exception.pending = false;
+ vcpu->arch.exception.injected = false;
}
static inline void kvm_queue_interrupt(struct kvm_vcpu *vcpu, u8 vector,
@@ -29,7 +29,7 @@ static inline void kvm_clear_interrupt_queue(struct kvm_vcpu *vcpu)
static inline bool kvm_event_needs_reinjection(struct kvm_vcpu *vcpu)
{
- return vcpu->arch.exception.pending || vcpu->arch.interrupt.pending ||
+ return vcpu->arch.exception.injected || vcpu->arch.interrupt.pending ||
vcpu->arch.nmi_injected;
}
@@ -62,6 +62,16 @@ static inline bool is_64_bit_mode(struct kvm_vcpu *vcpu)
return cs_l;
}
+static inline bool is_la57_mode(struct kvm_vcpu *vcpu)
+{
+#ifdef CONFIG_X86_64
+ return (vcpu->arch.efer & EFER_LMA) &&
+ kvm_read_cr4_bits(vcpu, X86_CR4_LA57);
+#else
+ return 0;
+#endif
+}
+
static inline bool mmu_is_nested(struct kvm_vcpu *vcpu)
{
return vcpu->arch.walk_mmu == &vcpu->arch.nested_mmu;
@@ -87,10 +97,48 @@ static inline u32 bit(int bitno)
return 1 << (bitno & 31);
}
+static inline u8 vcpu_virt_addr_bits(struct kvm_vcpu *vcpu)
+{
+ return kvm_read_cr4_bits(vcpu, X86_CR4_LA57) ? 57 : 48;
+}
+
+static inline u8 ctxt_virt_addr_bits(struct x86_emulate_ctxt *ctxt)
+{
+ return (ctxt->ops->get_cr(ctxt, 4) & X86_CR4_LA57) ? 57 : 48;
+}
+
+static inline u64 get_canonical(u64 la, u8 vaddr_bits)
+{
+ return ((int64_t)la << (64 - vaddr_bits)) >> (64 - vaddr_bits);
+}
+
+static inline bool is_noncanonical_address(u64 la, struct kvm_vcpu *vcpu)
+{
+#ifdef CONFIG_X86_64
+ return get_canonical(la, vcpu_virt_addr_bits(vcpu)) != la;
+#else
+ return false;
+#endif
+}
+
+static inline bool emul_is_noncanonical_address(u64 la,
+ struct x86_emulate_ctxt *ctxt)
+{
+#ifdef CONFIG_X86_64
+ return get_canonical(la, ctxt_virt_addr_bits(ctxt)) != la;
+#else
+ return false;
+#endif
+}
+
static inline void vcpu_cache_mmio_info(struct kvm_vcpu *vcpu,
gva_t gva, gfn_t gfn, unsigned access)
{
- vcpu->arch.mmio_gva = gva & PAGE_MASK;
+ /*
+ * If this is a shadow nested page table, the "GVA" is
+ * actually a nGPA.
+ */
+ vcpu->arch.mmio_gva = mmu_is_nested(vcpu) ? 0 : gva & PAGE_MASK;
vcpu->arch.access = access;
vcpu->arch.mmio_gfn = gfn;
vcpu->arch.mmio_gen = kvm_memslots(vcpu->kvm)->generation;
diff --git a/arch/x86/lguest/Kconfig b/arch/x86/lguest/Kconfig
deleted file mode 100644
index 08f41caada45..000000000000
--- a/arch/x86/lguest/Kconfig
+++ /dev/null
@@ -1,14 +0,0 @@
-config LGUEST_GUEST
- bool "Lguest guest support"
- depends on X86_32 && PARAVIRT && PCI
- select TTY
- select VIRTUALIZATION
- select VIRTIO
- select VIRTIO_CONSOLE
- help
- Lguest is a tiny in-kernel hypervisor. Selecting this will
- allow your kernel to boot under lguest. This option will increase
- your kernel size by about 10k. If in doubt, say N.
-
- If you say Y here, make sure you say Y (or M) to the virtio block
- and net drivers which lguest needs.
diff --git a/arch/x86/lguest/Makefile b/arch/x86/lguest/Makefile
deleted file mode 100644
index 8f38d577a2fa..000000000000
--- a/arch/x86/lguest/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-obj-y := head_32.o boot.o
-CFLAGS_boot.o := $(call cc-option, -fno-stack-protector)
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
deleted file mode 100644
index 99472698c931..000000000000
--- a/arch/x86/lguest/boot.c
+++ /dev/null
@@ -1,1558 +0,0 @@
-/*P:010
- * A hypervisor allows multiple Operating Systems to run on a single machine.
- * To quote David Wheeler: "Any problem in computer science can be solved with
- * another layer of indirection."
- *
- * We keep things simple in two ways. First, we start with a normal Linux
- * kernel and insert a module (lg.ko) which allows us to run other Linux
- * kernels the same way we'd run processes. We call the first kernel the Host,
- * and the others the Guests. The program which sets up and configures Guests
- * (such as the example in tools/lguest/lguest.c) is called the Launcher.
- *
- * Secondly, we only run specially modified Guests, not normal kernels: setting
- * CONFIG_LGUEST_GUEST to "y" compiles this file into the kernel so it knows
- * how to be a Guest at boot time. This means that you can use the same kernel
- * you boot normally (ie. as a Host) as a Guest.
- *
- * These Guests know that they cannot do privileged operations, such as disable
- * interrupts, and that they have to ask the Host to do such things explicitly.
- * This file consists of all the replacements for such low-level native
- * hardware operations: these special Guest versions call the Host.
- *
- * So how does the kernel know it's a Guest? We'll see that later, but let's
- * just say that we end up here where we replace the native functions various
- * "paravirt" structures with our Guest versions, then boot like normal.
-:*/
-
-/*
- * Copyright (C) 2006, Rusty Russell <rusty@rustcorp.com.au> IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-#include <linux/kernel.h>
-#include <linux/start_kernel.h>
-#include <linux/string.h>
-#include <linux/console.h>
-#include <linux/screen_info.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <linux/clocksource.h>
-#include <linux/clockchips.h>
-#include <linux/lguest.h>
-#include <linux/lguest_launcher.h>
-#include <linux/virtio_console.h>
-#include <linux/pm.h>
-#include <linux/export.h>
-#include <linux/pci.h>
-#include <linux/virtio_pci.h>
-#include <asm/acpi.h>
-#include <asm/apic.h>
-#include <asm/lguest.h>
-#include <asm/paravirt.h>
-#include <asm/param.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/desc.h>
-#include <asm/setup.h>
-#include <asm/e820/api.h>
-#include <asm/mce.h>
-#include <asm/io.h>
-#include <asm/fpu/api.h>
-#include <asm/stackprotector.h>
-#include <asm/reboot.h> /* for struct machine_ops */
-#include <asm/kvm_para.h>
-#include <asm/pci_x86.h>
-#include <asm/pci-direct.h>
-
-/*G:010
- * Welcome to the Guest!
- *
- * The Guest in our tale is a simple creature: identical to the Host but
- * behaving in simplified but equivalent ways. In particular, the Guest is the
- * same kernel as the Host (or at least, built from the same source code).
-:*/
-
-struct lguest_data lguest_data = {
- .hcall_status = { [0 ... LHCALL_RING_SIZE-1] = 0xFF },
- .noirq_iret = (u32)lguest_noirq_iret,
- .kernel_address = PAGE_OFFSET,
- .blocked_interrupts = { 1 }, /* Block timer interrupts */
- .syscall_vec = IA32_SYSCALL_VECTOR,
-};
-
-/*G:037
- * async_hcall() is pretty simple: I'm quite proud of it really. We have a
- * ring buffer of stored hypercalls which the Host will run though next time we
- * do a normal hypercall. Each entry in the ring has 5 slots for the hypercall
- * arguments, and a "hcall_status" word which is 0 if the call is ready to go,
- * and 255 once the Host has finished with it.
- *
- * If we come around to a slot which hasn't been finished, then the table is
- * full and we just make the hypercall directly. This has the nice side
- * effect of causing the Host to run all the stored calls in the ring buffer
- * which empties it for next time!
- */
-static void async_hcall(unsigned long call, unsigned long arg1,
- unsigned long arg2, unsigned long arg3,
- unsigned long arg4)
-{
- /* Note: This code assumes we're uniprocessor. */
- static unsigned int next_call;
- unsigned long flags;
-
- /*
- * Disable interrupts if not already disabled: we don't want an
- * interrupt handler making a hypercall while we're already doing
- * one!
- */
- local_irq_save(flags);
- if (lguest_data.hcall_status[next_call] != 0xFF) {
- /* Table full, so do normal hcall which will flush table. */
- hcall(call, arg1, arg2, arg3, arg4);
- } else {
- lguest_data.hcalls[next_call].arg0 = call;
- lguest_data.hcalls[next_call].arg1 = arg1;
- lguest_data.hcalls[next_call].arg2 = arg2;
- lguest_data.hcalls[next_call].arg3 = arg3;
- lguest_data.hcalls[next_call].arg4 = arg4;
- /* Arguments must all be written before we mark it to go */
- wmb();
- lguest_data.hcall_status[next_call] = 0;
- if (++next_call == LHCALL_RING_SIZE)
- next_call = 0;
- }
- local_irq_restore(flags);
-}
-
-/*G:035
- * Notice the lazy_hcall() above, rather than hcall(). This is our first real
- * optimization trick!
- *
- * When lazy_mode is set, it means we're allowed to defer all hypercalls and do
- * them as a batch when lazy_mode is eventually turned off. Because hypercalls
- * are reasonably expensive, batching them up makes sense. For example, a
- * large munmap might update dozens of page table entries: that code calls
- * paravirt_enter_lazy_mmu(), does the dozen updates, then calls
- * lguest_leave_lazy_mode().
- *
- * So, when we're in lazy mode, we call async_hcall() to store the call for
- * future processing:
- */
-static void lazy_hcall1(unsigned long call, unsigned long arg1)
-{
- if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_NONE)
- hcall(call, arg1, 0, 0, 0);
- else
- async_hcall(call, arg1, 0, 0, 0);
-}
-
-/* You can imagine what lazy_hcall2, 3 and 4 look like. :*/
-static void lazy_hcall2(unsigned long call,
- unsigned long arg1,
- unsigned long arg2)
-{
- if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_NONE)
- hcall(call, arg1, arg2, 0, 0);
- else
- async_hcall(call, arg1, arg2, 0, 0);
-}
-
-static void lazy_hcall3(unsigned long call,
- unsigned long arg1,
- unsigned long arg2,
- unsigned long arg3)
-{
- if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_NONE)
- hcall(call, arg1, arg2, arg3, 0);
- else
- async_hcall(call, arg1, arg2, arg3, 0);
-}
-
-#ifdef CONFIG_X86_PAE
-static void lazy_hcall4(unsigned long call,
- unsigned long arg1,
- unsigned long arg2,
- unsigned long arg3,
- unsigned long arg4)
-{
- if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_NONE)
- hcall(call, arg1, arg2, arg3, arg4);
- else
- async_hcall(call, arg1, arg2, arg3, arg4);
-}
-#endif
-
-/*G:036
- * When lazy mode is turned off, we issue the do-nothing hypercall to
- * flush any stored calls, and call the generic helper to reset the
- * per-cpu lazy mode variable.
- */
-static void lguest_leave_lazy_mmu_mode(void)
-{
- hcall(LHCALL_FLUSH_ASYNC, 0, 0, 0, 0);
- paravirt_leave_lazy_mmu();
-}
-
-/*
- * We also catch the end of context switch; we enter lazy mode for much of
- * that too, so again we need to flush here.
- *
- * (Technically, this is lazy CPU mode, and normally we're in lazy MMU
- * mode, but unlike Xen, lguest doesn't care about the difference).
- */
-static void lguest_end_context_switch(struct task_struct *next)
-{
- hcall(LHCALL_FLUSH_ASYNC, 0, 0, 0, 0);
- paravirt_end_context_switch(next);
-}
-
-/*G:032
- * After that diversion we return to our first native-instruction
- * replacements: four functions for interrupt control.
- *
- * The simplest way of implementing these would be to have "turn interrupts
- * off" and "turn interrupts on" hypercalls. Unfortunately, this is too slow:
- * these are by far the most commonly called functions of those we override.
- *
- * So instead we keep an "irq_enabled" field inside our "struct lguest_data",
- * which the Guest can update with a single instruction. The Host knows to
- * check there before it tries to deliver an interrupt.
- */
-
-/*
- * save_flags() is expected to return the processor state (ie. "flags"). The
- * flags word contains all kind of stuff, but in practice Linux only cares
- * about the interrupt flag. Our "save_flags()" just returns that.
- */
-asmlinkage __visible unsigned long lguest_save_fl(void)
-{
- return lguest_data.irq_enabled;
-}
-
-/* Interrupts go off... */
-asmlinkage __visible void lguest_irq_disable(void)
-{
- lguest_data.irq_enabled = 0;
-}
-
-/*
- * Let's pause a moment. Remember how I said these are called so often?
- * Jeremy Fitzhardinge optimized them so hard early in 2009 that he had to
- * break some rules. In particular, these functions are assumed to save their
- * own registers if they need to: normal C functions assume they can trash the
- * eax register. To use normal C functions, we use
- * PV_CALLEE_SAVE_REGS_THUNK(), which pushes %eax onto the stack, calls the
- * C function, then restores it.
- */
-PV_CALLEE_SAVE_REGS_THUNK(lguest_save_fl);
-PV_CALLEE_SAVE_REGS_THUNK(lguest_irq_disable);
-/*:*/
-
-/* These are in head_32.S */
-extern void lg_irq_enable(void);
-extern void lg_restore_fl(unsigned long flags);
-
-/*M:003
- * We could be more efficient in our checking of outstanding interrupts, rather
- * than using a branch. One way would be to put the "irq_enabled" field in a
- * page by itself, and have the Host write-protect it when an interrupt comes
- * in when irqs are disabled. There will then be a page fault as soon as
- * interrupts are re-enabled.
- *
- * A better method is to implement soft interrupt disable generally for x86:
- * instead of disabling interrupts, we set a flag. If an interrupt does come
- * in, we then disable them for real. This is uncommon, so we could simply use
- * a hypercall for interrupt control and not worry about efficiency.
-:*/
-
-/*G:034
- * The Interrupt Descriptor Table (IDT).
- *
- * The IDT tells the processor what to do when an interrupt comes in. Each
- * entry in the table is a 64-bit descriptor: this holds the privilege level,
- * address of the handler, and... well, who cares? The Guest just asks the
- * Host to make the change anyway, because the Host controls the real IDT.
- */
-static void lguest_write_idt_entry(gate_desc *dt,
- int entrynum, const gate_desc *g)
-{
- /*
- * The gate_desc structure is 8 bytes long: we hand it to the Host in
- * two 32-bit chunks. The whole 32-bit kernel used to hand descriptors
- * around like this; typesafety wasn't a big concern in Linux's early
- * years.
- */
- u32 *desc = (u32 *)g;
- /* Keep the local copy up to date. */
- native_write_idt_entry(dt, entrynum, g);
- /* Tell Host about this new entry. */
- hcall(LHCALL_LOAD_IDT_ENTRY, entrynum, desc[0], desc[1], 0);
-}
-
-/*
- * Changing to a different IDT is very rare: we keep the IDT up-to-date every
- * time it is written, so we can simply loop through all entries and tell the
- * Host about them.
- */
-static void lguest_load_idt(const struct desc_ptr *desc)
-{
- unsigned int i;
- struct desc_struct *idt = (void *)desc->address;
-
- for (i = 0; i < (desc->size+1)/8; i++)
- hcall(LHCALL_LOAD_IDT_ENTRY, i, idt[i].a, idt[i].b, 0);
-}
-
-/*
- * The Global Descriptor Table.
- *
- * The Intel architecture defines another table, called the Global Descriptor
- * Table (GDT). You tell the CPU where it is (and its size) using the "lgdt"
- * instruction, and then several other instructions refer to entries in the
- * table. There are three entries which the Switcher needs, so the Host simply
- * controls the entire thing and the Guest asks it to make changes using the
- * LOAD_GDT hypercall.
- *
- * This is the exactly like the IDT code.
- */
-static void lguest_load_gdt(const struct desc_ptr *desc)
-{
- unsigned int i;
- struct desc_struct *gdt = (void *)desc->address;
-
- for (i = 0; i < (desc->size+1)/8; i++)
- hcall(LHCALL_LOAD_GDT_ENTRY, i, gdt[i].a, gdt[i].b, 0);
-}
-
-/*
- * For a single GDT entry which changes, we simply change our copy and
- * then tell the host about it.
- */
-static void lguest_write_gdt_entry(struct desc_struct *dt, int entrynum,
- const void *desc, int type)
-{
- native_write_gdt_entry(dt, entrynum, desc, type);
- /* Tell Host about this new entry. */
- hcall(LHCALL_LOAD_GDT_ENTRY, entrynum,
- dt[entrynum].a, dt[entrynum].b, 0);
-}
-
-/*
- * There are three "thread local storage" GDT entries which change
- * on every context switch (these three entries are how glibc implements
- * __thread variables). As an optimization, we have a hypercall
- * specifically for this case.
- *
- * Wouldn't it be nicer to have a general LOAD_GDT_ENTRIES hypercall
- * which took a range of entries?
- */
-static void lguest_load_tls(struct thread_struct *t, unsigned int cpu)
-{
- /*
- * There's one problem which normal hardware doesn't have: the Host
- * can't handle us removing entries we're currently using. So we clear
- * the GS register here: if it's needed it'll be reloaded anyway.
- */
- lazy_load_gs(0);
- lazy_hcall2(LHCALL_LOAD_TLS, __pa(&t->tls_array), cpu);
-}
-
-/*G:038
- * That's enough excitement for now, back to ploughing through each of the
- * different pv_ops structures (we're about 1/3 of the way through).
- *
- * This is the Local Descriptor Table, another weird Intel thingy. Linux only
- * uses this for some strange applications like Wine. We don't do anything
- * here, so they'll get an informative and friendly Segmentation Fault.
- */
-static void lguest_set_ldt(const void *addr, unsigned entries)
-{
-}
-
-/*
- * This loads a GDT entry into the "Task Register": that entry points to a
- * structure called the Task State Segment. Some comments scattered though the
- * kernel code indicate that this used for task switching in ages past, along
- * with blood sacrifice and astrology.
- *
- * Now there's nothing interesting in here that we don't get told elsewhere.
- * But the native version uses the "ltr" instruction, which makes the Host
- * complain to the Guest about a Segmentation Fault and it'll oops. So we
- * override the native version with a do-nothing version.
- */
-static void lguest_load_tr_desc(void)
-{
-}
-
-/*
- * The "cpuid" instruction is a way of querying both the CPU identity
- * (manufacturer, model, etc) and its features. It was introduced before the
- * Pentium in 1993 and keeps getting extended by both Intel, AMD and others.
- * As you might imagine, after a decade and a half this treatment, it is now a
- * giant ball of hair. Its entry in the current Intel manual runs to 28 pages.
- *
- * This instruction even it has its own Wikipedia entry. The Wikipedia entry
- * has been translated into 6 languages. I am not making this up!
- *
- * We could get funky here and identify ourselves as "GenuineLguest", but
- * instead we just use the real "cpuid" instruction. Then I pretty much turned
- * off feature bits until the Guest booted. (Don't say that: you'll damage
- * lguest sales!) Shut up, inner voice! (Hey, just pointing out that this is
- * hardly future proof.) No one's listening! They don't like you anyway,
- * parenthetic weirdo!
- *
- * Replacing the cpuid so we can turn features off is great for the kernel, but
- * anyone (including userspace) can just use the raw "cpuid" instruction and
- * the Host won't even notice since it isn't privileged. So we try not to get
- * too worked up about it.
- */
-static void lguest_cpuid(unsigned int *ax, unsigned int *bx,
- unsigned int *cx, unsigned int *dx)
-{
- int function = *ax;
-
- native_cpuid(ax, bx, cx, dx);
- switch (function) {
- /*
- * CPUID 0 gives the highest legal CPUID number (and the ID string).
- * We futureproof our code a little by sticking to known CPUID values.
- */
- case 0:
- if (*ax > 5)
- *ax = 5;
- break;
-
- /*
- * CPUID 1 is a basic feature request.
- *
- * CX: we only allow kernel to see SSE3, CMPXCHG16B and SSSE3
- * DX: SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, TSC, FPU and PAE.
- */
- case 1:
- *cx &= 0x00002201;
- *dx &= 0x07808151;
- /*
- * The Host can do a nice optimization if it knows that the
- * kernel mappings (addresses above 0xC0000000 or whatever
- * PAGE_OFFSET is set to) haven't changed. But Linux calls
- * flush_tlb_user() for both user and kernel mappings unless
- * the Page Global Enable (PGE) feature bit is set.
- */
- *dx |= 0x00002000;
- /*
- * We also lie, and say we're family id 5. 6 or greater
- * leads to a rdmsr in early_init_intel which we can't handle.
- * Family ID is returned as bits 8-12 in ax.
- */
- *ax &= 0xFFFFF0FF;
- *ax |= 0x00000500;
- break;
-
- /*
- * This is used to detect if we're running under KVM. We might be,
- * but that's a Host matter, not us. So say we're not.
- */
- case KVM_CPUID_SIGNATURE:
- *bx = *cx = *dx = 0;
- break;
-
- /*
- * 0x80000000 returns the highest Extended Function, so we futureproof
- * like we do above by limiting it to known fields.
- */
- case 0x80000000:
- if (*ax > 0x80000008)
- *ax = 0x80000008;
- break;
-
- /*
- * PAE systems can mark pages as non-executable. Linux calls this the
- * NX bit. Intel calls it XD (eXecute Disable), AMD EVP (Enhanced
- * Virus Protection). We just switch it off here, since we don't
- * support it.
- */
- case 0x80000001:
- *dx &= ~(1 << 20);
- break;
- }
-}
-
-/*
- * Intel has four control registers, imaginatively named cr0, cr2, cr3 and cr4.
- * I assume there's a cr1, but it hasn't bothered us yet, so we'll not bother
- * it. The Host needs to know when the Guest wants to change them, so we have
- * a whole series of functions like read_cr0() and write_cr0().
- *
- * We start with cr0. cr0 allows you to turn on and off all kinds of basic
- * features, but the only cr0 bit that Linux ever used at runtime was the
- * horrifically-named Task Switched (TS) bit at bit 3 (ie. 8)
- *
- * What does the TS bit do? Well, it causes the CPU to trap (interrupt 7) if
- * the floating point unit is used. Which allows us to restore FPU state
- * lazily after a task switch if we wanted to, but wouldn't a name like
- * "FPUTRAP bit" be a little less cryptic?
- *
- * Fortunately, Linux keeps it simple and doesn't use TS, so we can ignore
- * cr0.
- */
-static void lguest_write_cr0(unsigned long val)
-{
-}
-
-static unsigned long lguest_read_cr0(void)
-{
- return 0;
-}
-
-/*
- * cr2 is the virtual address of the last page fault, which the Guest only ever
- * reads. The Host kindly writes this into our "struct lguest_data", so we
- * just read it out of there.
- */
-static unsigned long lguest_read_cr2(void)
-{
- return lguest_data.cr2;
-}
-
-/* See lguest_set_pte() below. */
-static bool cr3_changed = false;
-static unsigned long current_cr3;
-
-/*
- * cr3 is the current toplevel pagetable page: the principle is the same as
- * cr0. Keep a local copy, and tell the Host when it changes.
- */
-static void lguest_write_cr3(unsigned long cr3)
-{
- lazy_hcall1(LHCALL_NEW_PGTABLE, cr3);
- current_cr3 = cr3;
-
- /* These two page tables are simple, linear, and used during boot */
- if (cr3 != __pa_symbol(swapper_pg_dir) &&
- cr3 != __pa_symbol(initial_page_table))
- cr3_changed = true;
-}
-
-static unsigned long lguest_read_cr3(void)
-{
- return current_cr3;
-}
-
-/* cr4 is used to enable and disable PGE, but we don't care. */
-static unsigned long lguest_read_cr4(void)
-{
- return 0;
-}
-
-static void lguest_write_cr4(unsigned long val)
-{
-}
-
-/*
- * Page Table Handling.
- *
- * Now would be a good time to take a rest and grab a coffee or similarly
- * relaxing stimulant. The easy parts are behind us, and the trek gradually
- * winds uphill from here.
- *
- * Quick refresher: memory is divided into "pages" of 4096 bytes each. The CPU
- * maps virtual addresses to physical addresses using "page tables". We could
- * use one huge index of 1 million entries: each address is 4 bytes, so that's
- * 1024 pages just to hold the page tables. But since most virtual addresses
- * are unused, we use a two level index which saves space. The cr3 register
- * contains the physical address of the top level "page directory" page, which
- * contains physical addresses of up to 1024 second-level pages. Each of these
- * second level pages contains up to 1024 physical addresses of actual pages,
- * or Page Table Entries (PTEs).
- *
- * Here's a diagram, where arrows indicate physical addresses:
- *
- * cr3 ---> +---------+
- * | --------->+---------+
- * | | | PADDR1 |
- * Mid-level | | PADDR2 |
- * (PMD) page | | |
- * | | Lower-level |
- * | | (PTE) page |
- * | | | |
- * .... ....
- *
- * So to convert a virtual address to a physical address, we look up the top
- * level, which points us to the second level, which gives us the physical
- * address of that page. If the top level entry was not present, or the second
- * level entry was not present, then the virtual address is invalid (we
- * say "the page was not mapped").
- *
- * Put another way, a 32-bit virtual address is divided up like so:
- *
- * 1 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
- * |<---- 10 bits ---->|<---- 10 bits ---->|<------ 12 bits ------>|
- * Index into top Index into second Offset within page
- * page directory page pagetable page
- *
- * Now, unfortunately, this isn't the whole story: Intel added Physical Address
- * Extension (PAE) to allow 32 bit systems to use 64GB of memory (ie. 36 bits).
- * These are held in 64-bit page table entries, so we can now only fit 512
- * entries in a page, and the neat three-level tree breaks down.
- *
- * The result is a four level page table:
- *
- * cr3 --> [ 4 Upper ]
- * [ Level ]
- * [ Entries ]
- * [(PUD Page)]---> +---------+
- * | --------->+---------+
- * | | | PADDR1 |
- * Mid-level | | PADDR2 |
- * (PMD) page | | |
- * | | Lower-level |
- * | | (PTE) page |
- * | | | |
- * .... ....
- *
- *
- * And the virtual address is decoded as:
- *
- * 1 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
- * |<-2->|<--- 9 bits ---->|<---- 9 bits --->|<------ 12 bits ------>|
- * Index into Index into mid Index into lower Offset within page
- * top entries directory page pagetable page
- *
- * It's too hard to switch between these two formats at runtime, so Linux only
- * supports one or the other depending on whether CONFIG_X86_PAE is set. Many
- * distributions turn it on, and not just for people with silly amounts of
- * memory: the larger PTE entries allow room for the NX bit, which lets the
- * kernel disable execution of pages and increase security.
- *
- * This was a problem for lguest, which couldn't run on these distributions;
- * then Matias Zabaljauregui figured it all out and implemented it, and only a
- * handful of puppies were crushed in the process!
- *
- * Back to our point: the kernel spends a lot of time changing both the
- * top-level page directory and lower-level pagetable pages. The Guest doesn't
- * know physical addresses, so while it maintains these page tables exactly
- * like normal, it also needs to keep the Host informed whenever it makes a
- * change: the Host will create the real page tables based on the Guests'.
- */
-
-/*
- * The Guest calls this after it has set a second-level entry (pte), ie. to map
- * a page into a process' address space. We tell the Host the toplevel and
- * address this corresponds to. The Guest uses one pagetable per process, so
- * we need to tell the Host which one we're changing (mm->pgd).
- */
-static void lguest_pte_update(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
-{
-#ifdef CONFIG_X86_PAE
- /* PAE needs to hand a 64 bit page table entry, so it uses two args. */
- lazy_hcall4(LHCALL_SET_PTE, __pa(mm->pgd), addr,
- ptep->pte_low, ptep->pte_high);
-#else
- lazy_hcall3(LHCALL_SET_PTE, __pa(mm->pgd), addr, ptep->pte_low);
-#endif
-}
-
-/* This is the "set and update" combo-meal-deal version. */
-static void lguest_set_pte_at(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pteval)
-{
- native_set_pte(ptep, pteval);
- lguest_pte_update(mm, addr, ptep);
-}
-
-/*
- * The Guest calls lguest_set_pud to set a top-level entry and lguest_set_pmd
- * to set a middle-level entry when PAE is activated.
- *
- * Again, we set the entry then tell the Host which page we changed,
- * and the index of the entry we changed.
- */
-#ifdef CONFIG_X86_PAE
-static void lguest_set_pud(pud_t *pudp, pud_t pudval)
-{
- native_set_pud(pudp, pudval);
-
- /* 32 bytes aligned pdpt address and the index. */
- lazy_hcall2(LHCALL_SET_PGD, __pa(pudp) & 0xFFFFFFE0,
- (__pa(pudp) & 0x1F) / sizeof(pud_t));
-}
-
-static void lguest_set_pmd(pmd_t *pmdp, pmd_t pmdval)
-{
- native_set_pmd(pmdp, pmdval);
- lazy_hcall2(LHCALL_SET_PMD, __pa(pmdp) & PAGE_MASK,
- (__pa(pmdp) & (PAGE_SIZE - 1)) / sizeof(pmd_t));
-}
-#else
-
-/* The Guest calls lguest_set_pmd to set a top-level entry when !PAE. */
-static void lguest_set_pmd(pmd_t *pmdp, pmd_t pmdval)
-{
- native_set_pmd(pmdp, pmdval);
- lazy_hcall2(LHCALL_SET_PGD, __pa(pmdp) & PAGE_MASK,
- (__pa(pmdp) & (PAGE_SIZE - 1)) / sizeof(pmd_t));
-}
-#endif
-
-/*
- * There are a couple of legacy places where the kernel sets a PTE, but we
- * don't know the top level any more. This is useless for us, since we don't
- * know which pagetable is changing or what address, so we just tell the Host
- * to forget all of them. Fortunately, this is very rare.
- *
- * ... except in early boot when the kernel sets up the initial pagetables,
- * which makes booting astonishingly slow: 48 seconds! So we don't even tell
- * the Host anything changed until we've done the first real page table switch,
- * which brings boot back to 4.3 seconds.
- */
-static void lguest_set_pte(pte_t *ptep, pte_t pteval)
-{
- native_set_pte(ptep, pteval);
- if (cr3_changed)
- lazy_hcall1(LHCALL_FLUSH_TLB, 1);
-}
-
-#ifdef CONFIG_X86_PAE
-/*
- * With 64-bit PTE values, we need to be careful setting them: if we set 32
- * bits at a time, the hardware could see a weird half-set entry. These
- * versions ensure we update all 64 bits at once.
- */
-static void lguest_set_pte_atomic(pte_t *ptep, pte_t pte)
-{
- native_set_pte_atomic(ptep, pte);
- if (cr3_changed)
- lazy_hcall1(LHCALL_FLUSH_TLB, 1);
-}
-
-static void lguest_pte_clear(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
-{
- native_pte_clear(mm, addr, ptep);
- lguest_pte_update(mm, addr, ptep);
-}
-
-static void lguest_pmd_clear(pmd_t *pmdp)
-{
- lguest_set_pmd(pmdp, __pmd(0));
-}
-#endif
-
-/*
- * Unfortunately for Lguest, the pv_mmu_ops for page tables were based on
- * native page table operations. On native hardware you can set a new page
- * table entry whenever you want, but if you want to remove one you have to do
- * a TLB flush (a TLB is a little cache of page table entries kept by the CPU).
- *
- * So the lguest_set_pte_at() and lguest_set_pmd() functions above are only
- * called when a valid entry is written, not when it's removed (ie. marked not
- * present). Instead, this is where we come when the Guest wants to remove a
- * page table entry: we tell the Host to set that entry to 0 (ie. the present
- * bit is zero).
- */
-static void lguest_flush_tlb_single(unsigned long addr)
-{
- /* Simply set it to zero: if it was not, it will fault back in. */
- lazy_hcall3(LHCALL_SET_PTE, current_cr3, addr, 0);
-}
-
-/*
- * This is what happens after the Guest has removed a large number of entries.
- * This tells the Host that any of the page table entries for userspace might
- * have changed, ie. virtual addresses below PAGE_OFFSET.
- */
-static void lguest_flush_tlb_user(void)
-{
- lazy_hcall1(LHCALL_FLUSH_TLB, 0);
-}
-
-/*
- * This is called when the kernel page tables have changed. That's not very
- * common (unless the Guest is using highmem, which makes the Guest extremely
- * slow), so it's worth separating this from the user flushing above.
- */
-static void lguest_flush_tlb_kernel(void)
-{
- lazy_hcall1(LHCALL_FLUSH_TLB, 1);
-}
-
-/*
- * The Unadvanced Programmable Interrupt Controller.
- *
- * This is an attempt to implement the simplest possible interrupt controller.
- * I spent some time looking though routines like set_irq_chip_and_handler,
- * set_irq_chip_and_handler_name, set_irq_chip_data and set_phasers_to_stun and
- * I *think* this is as simple as it gets.
- *
- * We can tell the Host what interrupts we want blocked ready for using the
- * lguest_data.interrupts bitmap, so disabling (aka "masking") them is as
- * simple as setting a bit. We don't actually "ack" interrupts as such, we
- * just mask and unmask them. I wonder if we should be cleverer?
- */
-static void disable_lguest_irq(struct irq_data *data)
-{
- set_bit(data->irq, lguest_data.blocked_interrupts);
-}
-
-static void enable_lguest_irq(struct irq_data *data)
-{
- clear_bit(data->irq, lguest_data.blocked_interrupts);
-}
-
-/* This structure describes the lguest IRQ controller. */
-static struct irq_chip lguest_irq_controller = {
- .name = "lguest",
- .irq_mask = disable_lguest_irq,
- .irq_mask_ack = disable_lguest_irq,
- .irq_unmask = enable_lguest_irq,
-};
-
-/*
- * Interrupt descriptors are allocated as-needed, but low-numbered ones are
- * reserved by the generic x86 code. So we ignore irq_alloc_desc_at if it
- * tells us the irq is already used: other errors (ie. ENOMEM) we take
- * seriously.
- */
-static int lguest_setup_irq(unsigned int irq)
-{
- struct irq_desc *desc;
- int err;
-
- /* Returns -ve error or vector number. */
- err = irq_alloc_desc_at(irq, 0);
- if (err < 0 && err != -EEXIST)
- return err;
-
- /*
- * Tell the Linux infrastructure that the interrupt is
- * controlled by our level-based lguest interrupt controller.
- */
- irq_set_chip_and_handler_name(irq, &lguest_irq_controller,
- handle_level_irq, "level");
-
- /* Some systems map "vectors" to interrupts weirdly. Not us! */
- desc = irq_to_desc(irq);
- __this_cpu_write(vector_irq[FIRST_EXTERNAL_VECTOR + irq], desc);
- return 0;
-}
-
-static int lguest_enable_irq(struct pci_dev *dev)
-{
- int err;
- u8 line = 0;
-
- /* We literally use the PCI interrupt line as the irq number. */
- pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &line);
- err = lguest_setup_irq(line);
- if (!err)
- dev->irq = line;
- return err;
-}
-
-/* We don't do hotplug PCI, so this shouldn't be called. */
-static void lguest_disable_irq(struct pci_dev *dev)
-{
- WARN_ON(1);
-}
-
-/*
- * This sets up the Interrupt Descriptor Table (IDT) entry for each hardware
- * interrupt (except 128, which is used for system calls).
- */
-static void __init lguest_init_IRQ(void)
-{
- unsigned int i;
-
- for (i = FIRST_EXTERNAL_VECTOR; i < FIRST_SYSTEM_VECTOR; i++) {
- if (i != IA32_SYSCALL_VECTOR)
- set_intr_gate(i, irq_entries_start +
- 8 * (i - FIRST_EXTERNAL_VECTOR));
- }
-
- /*
- * This call is required to set up for 4k stacks, where we have
- * separate stacks for hard and soft interrupts.
- */
- irq_ctx_init(smp_processor_id());
-}
-
-/*
- * Time.
- *
- * It would be far better for everyone if the Guest had its own clock, but
- * until then the Host gives us the time on every interrupt.
- */
-static void lguest_get_wallclock(struct timespec *now)
-{
- *now = lguest_data.time;
-}
-
-/*
- * The TSC is an Intel thing called the Time Stamp Counter. The Host tells us
- * what speed it runs at, or 0 if it's unusable as a reliable clock source.
- * This matches what we want here: if we return 0 from this function, the x86
- * TSC clock will give up and not register itself.
- */
-static unsigned long lguest_tsc_khz(void)
-{
- return lguest_data.tsc_khz;
-}
-
-/*
- * If we can't use the TSC, the kernel falls back to our lower-priority
- * "lguest_clock", where we read the time value given to us by the Host.
- */
-static u64 lguest_clock_read(struct clocksource *cs)
-{
- unsigned long sec, nsec;
-
- /*
- * Since the time is in two parts (seconds and nanoseconds), we risk
- * reading it just as it's changing from 99 & 0.999999999 to 100 and 0,
- * and getting 99 and 0. As Linux tends to come apart under the stress
- * of time travel, we must be careful:
- */
- do {
- /* First we read the seconds part. */
- sec = lguest_data.time.tv_sec;
- /*
- * This read memory barrier tells the compiler and the CPU that
- * this can't be reordered: we have to complete the above
- * before going on.
- */
- rmb();
- /* Now we read the nanoseconds part. */
- nsec = lguest_data.time.tv_nsec;
- /* Make sure we've done that. */
- rmb();
- /* Now if the seconds part has changed, try again. */
- } while (unlikely(lguest_data.time.tv_sec != sec));
-
- /* Our lguest clock is in real nanoseconds. */
- return sec*1000000000ULL + nsec;
-}
-
-/* This is the fallback clocksource: lower priority than the TSC clocksource. */
-static struct clocksource lguest_clock = {
- .name = "lguest",
- .rating = 200,
- .read = lguest_clock_read,
- .mask = CLOCKSOURCE_MASK(64),
- .flags = CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
-/*
- * We also need a "struct clock_event_device": Linux asks us to set it to go
- * off some time in the future. Actually, James Morris figured all this out, I
- * just applied the patch.
- */
-static int lguest_clockevent_set_next_event(unsigned long delta,
- struct clock_event_device *evt)
-{
- /* FIXME: I don't think this can ever happen, but James tells me he had
- * to put this code in. Maybe we should remove it now. Anyone? */
- if (delta < LG_CLOCK_MIN_DELTA) {
- if (printk_ratelimit())
- printk(KERN_DEBUG "%s: small delta %lu ns\n",
- __func__, delta);
- return -ETIME;
- }
-
- /* Please wake us this far in the future. */
- hcall(LHCALL_SET_CLOCKEVENT, delta, 0, 0, 0);
- return 0;
-}
-
-static int lguest_clockevent_shutdown(struct clock_event_device *evt)
-{
- /* A 0 argument shuts the clock down. */
- hcall(LHCALL_SET_CLOCKEVENT, 0, 0, 0, 0);
- return 0;
-}
-
-/* This describes our primitive timer chip. */
-static struct clock_event_device lguest_clockevent = {
- .name = "lguest",
- .features = CLOCK_EVT_FEAT_ONESHOT,
- .set_next_event = lguest_clockevent_set_next_event,
- .set_state_shutdown = lguest_clockevent_shutdown,
- .rating = INT_MAX,
- .mult = 1,
- .shift = 0,
- .min_delta_ns = LG_CLOCK_MIN_DELTA,
- .min_delta_ticks = LG_CLOCK_MIN_DELTA,
- .max_delta_ns = LG_CLOCK_MAX_DELTA,
- .max_delta_ticks = LG_CLOCK_MAX_DELTA,
-};
-
-/*
- * This is the Guest timer interrupt handler (hardware interrupt 0). We just
- * call the clockevent infrastructure and it does whatever needs doing.
- */
-static void lguest_time_irq(struct irq_desc *desc)
-{
- unsigned long flags;
-
- /* Don't interrupt us while this is running. */
- local_irq_save(flags);
- lguest_clockevent.event_handler(&lguest_clockevent);
- local_irq_restore(flags);
-}
-
-/*
- * At some point in the boot process, we get asked to set up our timing
- * infrastructure. The kernel doesn't expect timer interrupts before this, but
- * we cleverly initialized the "blocked_interrupts" field of "struct
- * lguest_data" so that timer interrupts were blocked until now.
- */
-static void lguest_time_init(void)
-{
- /* Set up the timer interrupt (0) to go to our simple timer routine */
- if (lguest_setup_irq(0) != 0)
- panic("Could not set up timer irq");
- irq_set_handler(0, lguest_time_irq);
-
- clocksource_register_hz(&lguest_clock, NSEC_PER_SEC);
-
- /* We can't set cpumask in the initializer: damn C limitations! Set it
- * here and register our timer device. */
- lguest_clockevent.cpumask = cpumask_of(0);
- clockevents_register_device(&lguest_clockevent);
-
- /* Finally, we unblock the timer interrupt. */
- clear_bit(0, lguest_data.blocked_interrupts);
-}
-
-/*
- * Miscellaneous bits and pieces.
- *
- * Here is an oddball collection of functions which the Guest needs for things
- * to work. They're pretty simple.
- */
-
-/*
- * The Guest needs to tell the Host what stack it expects traps to use. For
- * native hardware, this is part of the Task State Segment mentioned above in
- * lguest_load_tr_desc(), but to help hypervisors there's this special call.
- *
- * We tell the Host the segment we want to use (__KERNEL_DS is the kernel data
- * segment), the privilege level (we're privilege level 1, the Host is 0 and
- * will not tolerate us trying to use that), the stack pointer, and the number
- * of pages in the stack.
- */
-static void lguest_load_sp0(struct tss_struct *tss,
- struct thread_struct *thread)
-{
- lazy_hcall3(LHCALL_SET_STACK, __KERNEL_DS | 0x1, thread->sp0,
- THREAD_SIZE / PAGE_SIZE);
- tss->x86_tss.sp0 = thread->sp0;
-}
-
-/* Let's just say, I wouldn't do debugging under a Guest. */
-static unsigned long lguest_get_debugreg(int regno)
-{
- /* FIXME: Implement */
- return 0;
-}
-
-static void lguest_set_debugreg(int regno, unsigned long value)
-{
- /* FIXME: Implement */
-}
-
-/*
- * There are times when the kernel wants to make sure that no memory writes are
- * caught in the cache (that they've all reached real hardware devices). This
- * doesn't matter for the Guest which has virtual hardware.
- *
- * On the Pentium 4 and above, cpuid() indicates that the Cache Line Flush
- * (clflush) instruction is available and the kernel uses that. Otherwise, it
- * uses the older "Write Back and Invalidate Cache" (wbinvd) instruction.
- * Unlike clflush, wbinvd can only be run at privilege level 0. So we can
- * ignore clflush, but replace wbinvd.
- */
-static void lguest_wbinvd(void)
-{
-}
-
-/*
- * If the Guest expects to have an Advanced Programmable Interrupt Controller,
- * we play dumb by ignoring writes and returning 0 for reads. So it's no
- * longer Programmable nor Controlling anything, and I don't think 8 lines of
- * code qualifies for Advanced. It will also never interrupt anything. It
- * does, however, allow us to get through the Linux boot code.
- */
-#ifdef CONFIG_X86_LOCAL_APIC
-static void lguest_apic_write(u32 reg, u32 v)
-{
-}
-
-static u32 lguest_apic_read(u32 reg)
-{
- return 0;
-}
-
-static u64 lguest_apic_icr_read(void)
-{
- return 0;
-}
-
-static void lguest_apic_icr_write(u32 low, u32 id)
-{
- /* Warn to see if there's any stray references */
- WARN_ON(1);
-}
-
-static void lguest_apic_wait_icr_idle(void)
-{
- return;
-}
-
-static u32 lguest_apic_safe_wait_icr_idle(void)
-{
- return 0;
-}
-
-static void set_lguest_basic_apic_ops(void)
-{
- apic->read = lguest_apic_read;
- apic->write = lguest_apic_write;
- apic->icr_read = lguest_apic_icr_read;
- apic->icr_write = lguest_apic_icr_write;
- apic->wait_icr_idle = lguest_apic_wait_icr_idle;
- apic->safe_wait_icr_idle = lguest_apic_safe_wait_icr_idle;
-};
-#endif
-
-/* STOP! Until an interrupt comes in. */
-static void lguest_safe_halt(void)
-{
- hcall(LHCALL_HALT, 0, 0, 0, 0);
-}
-
-/*
- * The SHUTDOWN hypercall takes a string to describe what's happening, and
- * an argument which says whether this to restart (reboot) the Guest or not.
- *
- * Note that the Host always prefers that the Guest speak in physical addresses
- * rather than virtual addresses, so we use __pa() here.
- */
-static void lguest_power_off(void)
-{
- hcall(LHCALL_SHUTDOWN, __pa("Power down"),
- LGUEST_SHUTDOWN_POWEROFF, 0, 0);
-}
-
-/*
- * Panicing.
- *
- * Don't. But if you did, this is what happens.
- */
-static int lguest_panic(struct notifier_block *nb, unsigned long l, void *p)
-{
- hcall(LHCALL_SHUTDOWN, __pa(p), LGUEST_SHUTDOWN_POWEROFF, 0, 0);
- /* The hcall won't return, but to keep gcc happy, we're "done". */
- return NOTIFY_DONE;
-}
-
-static struct notifier_block paniced = {
- .notifier_call = lguest_panic
-};
-
-/* Setting up memory is fairly easy. */
-static __init char *lguest_memory_setup(void)
-{
- /*
- * The Linux bootloader header contains an "e820" memory map: the
- * Launcher populated the first entry with our memory limit.
- */
- e820__range_add(boot_params.e820_table[0].addr,
- boot_params.e820_table[0].size,
- boot_params.e820_table[0].type);
-
- /* This string is for the boot messages. */
- return "LGUEST";
-}
-
-/* Offset within PCI config space of BAR access capability. */
-static int console_cfg_offset = 0;
-static int console_access_cap;
-
-/* Set up so that we access off in bar0 (on bus 0, device 1, function 0) */
-static void set_cfg_window(u32 cfg_offset, u32 off)
-{
- write_pci_config_byte(0, 1, 0,
- cfg_offset + offsetof(struct virtio_pci_cap, bar),
- 0);
- write_pci_config(0, 1, 0,
- cfg_offset + offsetof(struct virtio_pci_cap, length),
- 4);
- write_pci_config(0, 1, 0,
- cfg_offset + offsetof(struct virtio_pci_cap, offset),
- off);
-}
-
-static void write_bar_via_cfg(u32 cfg_offset, u32 off, u32 val)
-{
- /*
- * We could set this up once, then leave it; nothing else in the *
- * kernel should touch these registers. But if it went wrong, that
- * would be a horrible bug to find.
- */
- set_cfg_window(cfg_offset, off);
- write_pci_config(0, 1, 0,
- cfg_offset + sizeof(struct virtio_pci_cap), val);
-}
-
-static void probe_pci_console(void)
-{
- u8 cap, common_cap = 0, device_cap = 0;
- u32 device_len;
-
- /* Avoid recursive printk into here. */
- console_cfg_offset = -1;
-
- if (!early_pci_allowed()) {
- printk(KERN_ERR "lguest: early PCI access not allowed!\n");
- return;
- }
-
- /* We expect a console PCI device at BUS0, slot 1. */
- if (read_pci_config(0, 1, 0, 0) != 0x10431AF4) {
- printk(KERN_ERR "lguest: PCI device is %#x!\n",
- read_pci_config(0, 1, 0, 0));
- return;
- }
-
- /* Find the capabilities we need (must be in bar0) */
- cap = read_pci_config_byte(0, 1, 0, PCI_CAPABILITY_LIST);
- while (cap) {
- u8 vndr = read_pci_config_byte(0, 1, 0, cap);
- if (vndr == PCI_CAP_ID_VNDR) {
- u8 type, bar;
-
- type = read_pci_config_byte(0, 1, 0,
- cap + offsetof(struct virtio_pci_cap, cfg_type));
- bar = read_pci_config_byte(0, 1, 0,
- cap + offsetof(struct virtio_pci_cap, bar));
-
- switch (type) {
- case VIRTIO_PCI_CAP_DEVICE_CFG:
- if (bar == 0)
- device_cap = cap;
- break;
- case VIRTIO_PCI_CAP_PCI_CFG:
- console_access_cap = cap;
- break;
- }
- }
- cap = read_pci_config_byte(0, 1, 0, cap + PCI_CAP_LIST_NEXT);
- }
- if (!device_cap || !console_access_cap) {
- printk(KERN_ERR "lguest: No caps (%u/%u/%u) in console!\n",
- common_cap, device_cap, console_access_cap);
- return;
- }
-
- /*
- * Note that we can't check features, until we've set the DRIVER
- * status bit. We don't want to do that until we have a real driver,
- * so we just check that the device-specific config has room for
- * emerg_wr. If it doesn't support VIRTIO_CONSOLE_F_EMERG_WRITE
- * it should ignore the access.
- */
- device_len = read_pci_config(0, 1, 0,
- device_cap + offsetof(struct virtio_pci_cap, length));
- if (device_len < (offsetof(struct virtio_console_config, emerg_wr)
- + sizeof(u32))) {
- printk(KERN_ERR "lguest: console missing emerg_wr field\n");
- return;
- }
-
- console_cfg_offset = read_pci_config(0, 1, 0,
- device_cap + offsetof(struct virtio_pci_cap, offset));
- printk(KERN_INFO "lguest: Console via virtio-pci emerg_wr\n");
-}
-
-/*
- * We will eventually use the virtio console device to produce console output,
- * but before that is set up we use the virtio PCI console's backdoor mmio
- * access and the "emergency" write facility (which is legal even before the
- * device is configured).
- */
-static __init int early_put_chars(u32 vtermno, const char *buf, int count)
-{
- /* If we couldn't find PCI console, forget it. */
- if (console_cfg_offset < 0)
- return count;
-
- if (unlikely(!console_cfg_offset)) {
- probe_pci_console();
- if (console_cfg_offset < 0)
- return count;
- }
-
- write_bar_via_cfg(console_access_cap,
- console_cfg_offset
- + offsetof(struct virtio_console_config, emerg_wr),
- buf[0]);
- return 1;
-}
-
-/*
- * Rebooting also tells the Host we're finished, but the RESTART flag tells the
- * Launcher to reboot us.
- */
-static void lguest_restart(char *reason)
-{
- hcall(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART, 0, 0);
-}
-
-/*G:050
- * Patching (Powerfully Placating Performance Pedants)
- *
- * We have already seen that pv_ops structures let us replace simple native
- * instructions with calls to the appropriate back end all throughout the
- * kernel. This allows the same kernel to run as a Guest and as a native
- * kernel, but it's slow because of all the indirect branches.
- *
- * Remember that David Wheeler quote about "Any problem in computer science can
- * be solved with another layer of indirection"? The rest of that quote is
- * "... But that usually will create another problem." This is the first of
- * those problems.
- *
- * Our current solution is to allow the paravirt back end to optionally patch
- * over the indirect calls to replace them with something more efficient. We
- * patch two of the simplest of the most commonly called functions: disable
- * interrupts and save interrupts. We usually have 6 or 10 bytes to patch
- * into: the Guest versions of these operations are small enough that we can
- * fit comfortably.
- *
- * First we need assembly templates of each of the patchable Guest operations,
- * and these are in head_32.S.
- */
-
-/*G:060 We construct a table from the assembler templates: */
-static const struct lguest_insns
-{
- const char *start, *end;
-} lguest_insns[] = {
- [PARAVIRT_PATCH(pv_irq_ops.irq_disable)] = { lgstart_cli, lgend_cli },
- [PARAVIRT_PATCH(pv_irq_ops.save_fl)] = { lgstart_pushf, lgend_pushf },
-};
-
-/*
- * Now our patch routine is fairly simple (based on the native one in
- * paravirt.c). If we have a replacement, we copy it in and return how much of
- * the available space we used.
- */
-static unsigned lguest_patch(u8 type, u16 clobber, void *ibuf,
- unsigned long addr, unsigned len)
-{
- unsigned int insn_len;
-
- /* Don't do anything special if we don't have a replacement */
- if (type >= ARRAY_SIZE(lguest_insns) || !lguest_insns[type].start)
- return paravirt_patch_default(type, clobber, ibuf, addr, len);
-
- insn_len = lguest_insns[type].end - lguest_insns[type].start;
-
- /* Similarly if it can't fit (doesn't happen, but let's be thorough). */
- if (len < insn_len)
- return paravirt_patch_default(type, clobber, ibuf, addr, len);
-
- /* Copy in our instructions. */
- memcpy(ibuf, lguest_insns[type].start, insn_len);
- return insn_len;
-}
-
-/*G:029
- * Once we get to lguest_init(), we know we're a Guest. The various
- * pv_ops structures in the kernel provide points for (almost) every routine we
- * have to override to avoid privileged instructions.
- */
-__init void lguest_init(void)
-{
- /* We're under lguest. */
- pv_info.name = "lguest";
- /* We're running at privilege level 1, not 0 as normal. */
- pv_info.kernel_rpl = 1;
- /* Everyone except Xen runs with this set. */
- pv_info.shared_kernel_pmd = 1;
-
- /*
- * We set up all the lguest overrides for sensitive operations. These
- * are detailed with the operations themselves.
- */
-
- /* Interrupt-related operations */
- pv_irq_ops.save_fl = PV_CALLEE_SAVE(lguest_save_fl);
- pv_irq_ops.restore_fl = __PV_IS_CALLEE_SAVE(lg_restore_fl);
- pv_irq_ops.irq_disable = PV_CALLEE_SAVE(lguest_irq_disable);
- pv_irq_ops.irq_enable = __PV_IS_CALLEE_SAVE(lg_irq_enable);
- pv_irq_ops.safe_halt = lguest_safe_halt;
-
- /* Setup operations */
- pv_init_ops.patch = lguest_patch;
-
- /* Intercepts of various CPU instructions */
- pv_cpu_ops.load_gdt = lguest_load_gdt;
- pv_cpu_ops.cpuid = lguest_cpuid;
- pv_cpu_ops.load_idt = lguest_load_idt;
- pv_cpu_ops.iret = lguest_iret;
- pv_cpu_ops.load_sp0 = lguest_load_sp0;
- pv_cpu_ops.load_tr_desc = lguest_load_tr_desc;
- pv_cpu_ops.set_ldt = lguest_set_ldt;
- pv_cpu_ops.load_tls = lguest_load_tls;
- pv_cpu_ops.get_debugreg = lguest_get_debugreg;
- pv_cpu_ops.set_debugreg = lguest_set_debugreg;
- pv_cpu_ops.read_cr0 = lguest_read_cr0;
- pv_cpu_ops.write_cr0 = lguest_write_cr0;
- pv_cpu_ops.read_cr4 = lguest_read_cr4;
- pv_cpu_ops.write_cr4 = lguest_write_cr4;
- pv_cpu_ops.write_gdt_entry = lguest_write_gdt_entry;
- pv_cpu_ops.write_idt_entry = lguest_write_idt_entry;
- pv_cpu_ops.wbinvd = lguest_wbinvd;
- pv_cpu_ops.start_context_switch = paravirt_start_context_switch;
- pv_cpu_ops.end_context_switch = lguest_end_context_switch;
-
- /* Pagetable management */
- pv_mmu_ops.write_cr3 = lguest_write_cr3;
- pv_mmu_ops.flush_tlb_user = lguest_flush_tlb_user;
- pv_mmu_ops.flush_tlb_single = lguest_flush_tlb_single;
- pv_mmu_ops.flush_tlb_kernel = lguest_flush_tlb_kernel;
- pv_mmu_ops.set_pte = lguest_set_pte;
- pv_mmu_ops.set_pte_at = lguest_set_pte_at;
- pv_mmu_ops.set_pmd = lguest_set_pmd;
-#ifdef CONFIG_X86_PAE
- pv_mmu_ops.set_pte_atomic = lguest_set_pte_atomic;
- pv_mmu_ops.pte_clear = lguest_pte_clear;
- pv_mmu_ops.pmd_clear = lguest_pmd_clear;
- pv_mmu_ops.set_pud = lguest_set_pud;
-#endif
- pv_mmu_ops.read_cr2 = lguest_read_cr2;
- pv_mmu_ops.read_cr3 = lguest_read_cr3;
- pv_mmu_ops.lazy_mode.enter = paravirt_enter_lazy_mmu;
- pv_mmu_ops.lazy_mode.leave = lguest_leave_lazy_mmu_mode;
- pv_mmu_ops.lazy_mode.flush = paravirt_flush_lazy_mmu;
- pv_mmu_ops.pte_update = lguest_pte_update;
-
-#ifdef CONFIG_X86_LOCAL_APIC
- /* APIC read/write intercepts */
- set_lguest_basic_apic_ops();
-#endif
-
- x86_init.resources.memory_setup = lguest_memory_setup;
- x86_init.irqs.intr_init = lguest_init_IRQ;
- x86_init.timers.timer_init = lguest_time_init;
- x86_platform.calibrate_tsc = lguest_tsc_khz;
- x86_platform.get_wallclock = lguest_get_wallclock;
-
- /*
- * Now is a good time to look at the implementations of these functions
- * before returning to the rest of lguest_init().
- */
-
- /*G:070
- * Now we've seen all the paravirt_ops, we return to
- * lguest_init() where the rest of the fairly chaotic boot setup
- * occurs.
- */
-
- /*
- * The stack protector is a weird thing where gcc places a canary
- * value on the stack and then checks it on return. This file is
- * compiled with -fno-stack-protector it, so we got this far without
- * problems. The value of the canary is kept at offset 20 from the
- * %gs register, so we need to set that up before calling C functions
- * in other files.
- */
- setup_stack_canary_segment(0);
-
- /*
- * We could just call load_stack_canary_segment(), but we might as well
- * call switch_to_new_gdt() which loads the whole table and sets up the
- * per-cpu segment descriptor register %fs as well.
- */
- switch_to_new_gdt(0);
-
- /*
- * The Host<->Guest Switcher lives at the top of our address space, and
- * the Host told us how big it is when we made LGUEST_INIT hypercall:
- * it put the answer in lguest_data.reserve_mem
- */
- reserve_top_address(lguest_data.reserve_mem);
-
- /* Hook in our special panic hypercall code. */
- atomic_notifier_chain_register(&panic_notifier_list, &paniced);
-
- /*
- * This is messy CPU setup stuff which the native boot code does before
- * start_kernel, so we have to do, too:
- */
- cpu_detect(&new_cpu_data);
- /* head.S usually sets up the first capability word, so do it here. */
- new_cpu_data.x86_capability[CPUID_1_EDX] = cpuid_edx(1);
-
- /* Math is always hard! */
- set_cpu_cap(&new_cpu_data, X86_FEATURE_FPU);
-
- /* We don't have features. We have puppies! Puppies! */
-#ifdef CONFIG_X86_MCE
- mca_cfg.disabled = true;
-#endif
-#ifdef CONFIG_ACPI
- acpi_disabled = 1;
-#endif
-
- /*
- * We set the preferred console to "hvc". This is the "hypervisor
- * virtual console" driver written by the PowerPC people, which we also
- * adapted for lguest's use.
- */
- add_preferred_console("hvc", 0, NULL);
-
- /* Register our very early console. */
- virtio_cons_early_init(early_put_chars);
-
- /* Don't let ACPI try to control our PCI interrupts. */
- disable_acpi();
-
- /* We control them ourselves, by overriding these two hooks. */
- pcibios_enable_irq = lguest_enable_irq;
- pcibios_disable_irq = lguest_disable_irq;
-
- /*
- * Last of all, we set the power management poweroff hook to point to
- * the Guest routine to power off, and the reboot hook to our restart
- * routine.
- */
- pm_power_off = lguest_power_off;
- machine_ops.restart = lguest_restart;
-
- /*
- * Now we're set up, call i386_start_kernel() in head32.c and we proceed
- * to boot as normal. It never returns.
- */
- i386_start_kernel();
-}
-/*
- * This marks the end of stage II of our journey, The Guest.
- *
- * It is now time for us to explore the layer of virtual drivers and complete
- * our understanding of the Guest in "make Drivers".
- */
diff --git a/arch/x86/lguest/head_32.S b/arch/x86/lguest/head_32.S
deleted file mode 100644
index d5ae63f5ec5d..000000000000
--- a/arch/x86/lguest/head_32.S
+++ /dev/null
@@ -1,192 +0,0 @@
-#include <linux/linkage.h>
-#include <linux/lguest.h>
-#include <asm/lguest_hcall.h>
-#include <asm/asm-offsets.h>
-#include <asm/thread_info.h>
-#include <asm/processor-flags.h>
-
-/*G:020
-
- * Our story starts with the bzImage: booting starts at startup_32 in
- * arch/x86/boot/compressed/head_32.S. This merely uncompresses the real
- * kernel in place and then jumps into it: startup_32 in
- * arch/x86/kernel/head_32.S. Both routines expects a boot header in the %esi
- * register, which is created by the bootloader (the Launcher in our case).
- *
- * The startup_32 function does very little: it clears the uninitialized global
- * C variables which we expect to be zero (ie. BSS) and then copies the boot
- * header and kernel command line somewhere safe, and populates some initial
- * page tables. Finally it checks the 'hardware_subarch' field. This was
- * introduced in 2.6.24 for lguest and Xen: if it's set to '1' (lguest's
- * assigned number), then it calls us here.
- *
- * WARNING: be very careful here! We're running at addresses equal to physical
- * addresses (around 0), not above PAGE_OFFSET as most code expects
- * (eg. 0xC0000000). Jumps are relative, so they're OK, but we can't touch any
- * data without remembering to subtract __PAGE_OFFSET!
- *
- * The .section line puts this code in .init.text so it will be discarded after
- * boot.
- */
-.section .init.text, "ax", @progbits
-ENTRY(lguest_entry)
- /*
- * We make the "initialization" hypercall now to tell the Host where
- * our lguest_data struct is.
- */
- movl $LHCALL_LGUEST_INIT, %eax
- movl $lguest_data - __PAGE_OFFSET, %ebx
- int $LGUEST_TRAP_ENTRY
-
- /* Now turn our pagetables on; setup by arch/x86/kernel/head_32.S. */
- movl $LHCALL_NEW_PGTABLE, %eax
- movl $(initial_page_table - __PAGE_OFFSET), %ebx
- int $LGUEST_TRAP_ENTRY
-
- /* Set up the initial stack so we can run C code. */
- movl $(init_thread_union+THREAD_SIZE),%esp
-
- /* Jumps are relative: we're running __PAGE_OFFSET too low. */
- jmp lguest_init+__PAGE_OFFSET
-
-/*G:055
- * We create a macro which puts the assembler code between lgstart_ and lgend_
- * markers. These templates are put in the .text section: they can't be
- * discarded after boot as we may need to patch modules, too.
- */
-.text
-#define LGUEST_PATCH(name, insns...) \
- lgstart_##name: insns; lgend_##name:; \
- .globl lgstart_##name; .globl lgend_##name
-
-LGUEST_PATCH(cli, movl $0, lguest_data+LGUEST_DATA_irq_enabled)
-LGUEST_PATCH(pushf, movl lguest_data+LGUEST_DATA_irq_enabled, %eax)
-
-/*G:033
- * But using those wrappers is inefficient (we'll see why that doesn't matter
- * for save_fl and irq_disable later). If we write our routines carefully in
- * assembler, we can avoid clobbering any registers and avoid jumping through
- * the wrapper functions.
- *
- * I skipped over our first piece of assembler, but this one is worth studying
- * in a bit more detail so I'll describe in easy stages. First, the routine to
- * enable interrupts:
- */
-ENTRY(lg_irq_enable)
- /*
- * The reverse of irq_disable, this sets lguest_data.irq_enabled to
- * X86_EFLAGS_IF (ie. "Interrupts enabled").
- */
- movl $X86_EFLAGS_IF, lguest_data+LGUEST_DATA_irq_enabled
- /*
- * But now we need to check if the Host wants to know: there might have
- * been interrupts waiting to be delivered, in which case it will have
- * set lguest_data.irq_pending to X86_EFLAGS_IF. If it's not zero, we
- * jump to send_interrupts, otherwise we're done.
- */
- cmpl $0, lguest_data+LGUEST_DATA_irq_pending
- jnz send_interrupts
- /*
- * One cool thing about x86 is that you can do many things without using
- * a register. In this case, the normal path hasn't needed to save or
- * restore any registers at all!
- */
- ret
-send_interrupts:
- /*
- * OK, now we need a register: eax is used for the hypercall number,
- * which is LHCALL_SEND_INTERRUPTS.
- *
- * We used not to bother with this pending detection at all, which was
- * much simpler. Sooner or later the Host would realize it had to
- * send us an interrupt. But that turns out to make performance 7
- * times worse on a simple tcp benchmark. So now we do this the hard
- * way.
- */
- pushl %eax
- movl $LHCALL_SEND_INTERRUPTS, %eax
- /* This is the actual hypercall trap. */
- int $LGUEST_TRAP_ENTRY
- /* Put eax back the way we found it. */
- popl %eax
- ret
-
-/*
- * Finally, the "popf" or "restore flags" routine. The %eax register holds the
- * flags (in practice, either X86_EFLAGS_IF or 0): if it's X86_EFLAGS_IF we're
- * enabling interrupts again, if it's 0 we're leaving them off.
- */
-ENTRY(lg_restore_fl)
- /* This is just "lguest_data.irq_enabled = flags;" */
- movl %eax, lguest_data+LGUEST_DATA_irq_enabled
- /*
- * Now, if the %eax value has enabled interrupts and
- * lguest_data.irq_pending is set, we want to tell the Host so it can
- * deliver any outstanding interrupts. Fortunately, both values will
- * be X86_EFLAGS_IF (ie. 512) in that case, and the "testl"
- * instruction will AND them together for us. If both are set, we
- * jump to send_interrupts.
- */
- testl lguest_data+LGUEST_DATA_irq_pending, %eax
- jnz send_interrupts
- /* Again, the normal path has used no extra registers. Clever, huh? */
- ret
-/*:*/
-
-/* These demark the EIP where host should never deliver interrupts. */
-.global lguest_noirq_iret
-
-/*M:004
- * When the Host reflects a trap or injects an interrupt into the Guest, it
- * sets the eflags interrupt bit on the stack based on lguest_data.irq_enabled,
- * so the Guest iret logic does the right thing when restoring it. However,
- * when the Host sets the Guest up for direct traps, such as system calls, the
- * processor is the one to push eflags onto the stack, and the interrupt bit
- * will be 1 (in reality, interrupts are always enabled in the Guest).
- *
- * This turns out to be harmless: the only trap which should happen under Linux
- * with interrupts disabled is Page Fault (due to our lazy mapping of vmalloc
- * regions), which has to be reflected through the Host anyway. If another
- * trap *does* go off when interrupts are disabled, the Guest will panic, and
- * we'll never get to this iret!
-:*/
-
-/*G:045
- * There is one final paravirt_op that the Guest implements, and glancing at it
- * you can see why I left it to last. It's *cool*! It's in *assembler*!
- *
- * The "iret" instruction is used to return from an interrupt or trap. The
- * stack looks like this:
- * old address
- * old code segment & privilege level
- * old processor flags ("eflags")
- *
- * The "iret" instruction pops those values off the stack and restores them all
- * at once. The only problem is that eflags includes the Interrupt Flag which
- * the Guest can't change: the CPU will simply ignore it when we do an "iret".
- * So we have to copy eflags from the stack to lguest_data.irq_enabled before
- * we do the "iret".
- *
- * There are two problems with this: firstly, we can't clobber any registers
- * and secondly, the whole thing needs to be atomic. The first problem
- * is solved by using "push memory"/"pop memory" instruction pair for copying.
- *
- * The second is harder: copying eflags to lguest_data.irq_enabled will turn
- * interrupts on before we're finished, so we could be interrupted before we
- * return to userspace or wherever. Our solution to this is to tell the
- * Host that it is *never* to interrupt us there, even if interrupts seem to be
- * enabled. (It's not necessary to protect pop instruction, since
- * data gets updated only after it completes, so we only need to protect
- * one instruction, iret).
- */
-ENTRY(lguest_iret)
- pushl 2*4(%esp)
- /*
- * Note the %ss: segment prefix here. Normal data accesses use the
- * "ds" segment, but that will have already been restored for whatever
- * we're returning to (such as userspace): we can't trust it. The %ss:
- * prefix makes sure we use the stack segment, which is still valid.
- */
- popl %ss:lguest_data+LGUEST_DATA_irq_enabled
-lguest_noirq_iret:
- iret
diff --git a/arch/x86/lib/cmdline.c b/arch/x86/lib/cmdline.c
index 5cc78bf57232..3261abb21ef4 100644
--- a/arch/x86/lib/cmdline.c
+++ b/arch/x86/lib/cmdline.c
@@ -104,7 +104,112 @@ __cmdline_find_option_bool(const char *cmdline, int max_cmdline_size,
return 0; /* Buffer overrun */
}
+/*
+ * Find a non-boolean option (i.e. option=argument). In accordance with
+ * standard Linux practice, if this option is repeated, this returns the
+ * last instance on the command line.
+ *
+ * @cmdline: the cmdline string
+ * @max_cmdline_size: the maximum size of cmdline
+ * @option: option string to look for
+ * @buffer: memory buffer to return the option argument
+ * @bufsize: size of the supplied memory buffer
+ *
+ * Returns the length of the argument (regardless of if it was
+ * truncated to fit in the buffer), or -1 on not found.
+ */
+static int
+__cmdline_find_option(const char *cmdline, int max_cmdline_size,
+ const char *option, char *buffer, int bufsize)
+{
+ char c;
+ int pos = 0, len = -1;
+ const char *opptr = NULL;
+ char *bufptr = buffer;
+ enum {
+ st_wordstart = 0, /* Start of word/after whitespace */
+ st_wordcmp, /* Comparing this word */
+ st_wordskip, /* Miscompare, skip */
+ st_bufcpy, /* Copying this to buffer */
+ } state = st_wordstart;
+
+ if (!cmdline)
+ return -1; /* No command line */
+
+ /*
+ * This 'pos' check ensures we do not overrun
+ * a non-NULL-terminated 'cmdline'
+ */
+ while (pos++ < max_cmdline_size) {
+ c = *(char *)cmdline++;
+ if (!c)
+ break;
+
+ switch (state) {
+ case st_wordstart:
+ if (myisspace(c))
+ break;
+
+ state = st_wordcmp;
+ opptr = option;
+ /* fall through */
+
+ case st_wordcmp:
+ if ((c == '=') && !*opptr) {
+ /*
+ * We matched all the way to the end of the
+ * option we were looking for, prepare to
+ * copy the argument.
+ */
+ len = 0;
+ bufptr = buffer;
+ state = st_bufcpy;
+ break;
+ } else if (c == *opptr++) {
+ /*
+ * We are currently matching, so continue
+ * to the next character on the cmdline.
+ */
+ break;
+ }
+ state = st_wordskip;
+ /* fall through */
+
+ case st_wordskip:
+ if (myisspace(c))
+ state = st_wordstart;
+ break;
+
+ case st_bufcpy:
+ if (myisspace(c)) {
+ state = st_wordstart;
+ } else {
+ /*
+ * Increment len, but don't overrun the
+ * supplied buffer and leave room for the
+ * NULL terminator.
+ */
+ if (++len < bufsize)
+ *bufptr++ = c;
+ }
+ break;
+ }
+ }
+
+ if (bufsize)
+ *bufptr = '\0';
+
+ return len;
+}
+
int cmdline_find_option_bool(const char *cmdline, const char *option)
{
return __cmdline_find_option_bool(cmdline, COMMAND_LINE_SIZE, option);
}
+
+int cmdline_find_option(const char *cmdline, const char *option, char *buffer,
+ int bufsize)
+{
+ return __cmdline_find_option(cmdline, COMMAND_LINE_SIZE, option,
+ buffer, bufsize);
+}
diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S
index c5959576c315..020f75cc8cf6 100644
--- a/arch/x86/lib/copy_user_64.S
+++ b/arch/x86/lib/copy_user_64.S
@@ -37,7 +37,7 @@ ENTRY(copy_user_generic_unrolled)
movl %edx,%ecx
andl $63,%edx
shrl $6,%ecx
- jz 17f
+ jz .L_copy_short_string
1: movq (%rsi),%r8
2: movq 1*8(%rsi),%r9
3: movq 2*8(%rsi),%r10
@@ -58,7 +58,8 @@ ENTRY(copy_user_generic_unrolled)
leaq 64(%rdi),%rdi
decl %ecx
jnz 1b
-17: movl %edx,%ecx
+.L_copy_short_string:
+ movl %edx,%ecx
andl $7,%edx
shrl $3,%ecx
jz 20f
@@ -174,6 +175,8 @@ EXPORT_SYMBOL(copy_user_generic_string)
*/
ENTRY(copy_user_enhanced_fast_string)
ASM_STAC
+ cmpl $64,%edx
+ jb .L_copy_short_string /* less then 64 bytes, avoid the costly 'rep' */
movl %edx,%ecx
1: rep
movsb
diff --git a/arch/x86/lib/memcpy_32.c b/arch/x86/lib/memcpy_32.c
index cad12634d6bd..2eab7d0bfedd 100644
--- a/arch/x86/lib/memcpy_32.c
+++ b/arch/x86/lib/memcpy_32.c
@@ -6,7 +6,7 @@
__visible void *memcpy(void *to, const void *from, size_t n)
{
-#ifdef CONFIG_X86_USE_3DNOW
+#if defined(CONFIG_X86_USE_3DNOW) && !defined(CONFIG_FORTIFY_SOURCE)
return __memcpy3d(to, from, n);
#else
return __memcpy(to, from, n);
diff --git a/arch/x86/lib/msr-reg.S b/arch/x86/lib/msr-reg.S
index c81556409bbb..10ffa7e8519f 100644
--- a/arch/x86/lib/msr-reg.S
+++ b/arch/x86/lib/msr-reg.S
@@ -13,14 +13,14 @@
.macro op_safe_regs op
ENTRY(\op\()_safe_regs)
pushq %rbx
- pushq %rbp
+ pushq %r12
movq %rdi, %r10 /* Save pointer */
xorl %r11d, %r11d /* Return value */
movl (%rdi), %eax
movl 4(%rdi), %ecx
movl 8(%rdi), %edx
movl 12(%rdi), %ebx
- movl 20(%rdi), %ebp
+ movl 20(%rdi), %r12d
movl 24(%rdi), %esi
movl 28(%rdi), %edi
1: \op
@@ -29,10 +29,10 @@ ENTRY(\op\()_safe_regs)
movl %ecx, 4(%r10)
movl %edx, 8(%r10)
movl %ebx, 12(%r10)
- movl %ebp, 20(%r10)
+ movl %r12d, 20(%r10)
movl %esi, 24(%r10)
movl %edi, 28(%r10)
- popq %rbp
+ popq %r12
popq %rbx
ret
3:
diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c
index 3b7c40a2e3e1..75d3776123cc 100644
--- a/arch/x86/lib/usercopy_64.c
+++ b/arch/x86/lib/usercopy_64.c
@@ -7,6 +7,7 @@
*/
#include <linux/export.h>
#include <linux/uaccess.h>
+#include <linux/highmem.h>
/*
* Zero Userspace
@@ -73,3 +74,136 @@ copy_user_handle_tail(char *to, char *from, unsigned len)
clac();
return len;
}
+
+#ifdef CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE
+/**
+ * clean_cache_range - write back a cache range with CLWB
+ * @vaddr: virtual start address
+ * @size: number of bytes to write back
+ *
+ * Write back a cache range using the CLWB (cache line write back)
+ * instruction. Note that @size is internally rounded up to be cache
+ * line size aligned.
+ */
+static void clean_cache_range(void *addr, size_t size)
+{
+ u16 x86_clflush_size = boot_cpu_data.x86_clflush_size;
+ unsigned long clflush_mask = x86_clflush_size - 1;
+ void *vend = addr + size;
+ void *p;
+
+ for (p = (void *)((unsigned long)addr & ~clflush_mask);
+ p < vend; p += x86_clflush_size)
+ clwb(p);
+}
+
+void arch_wb_cache_pmem(void *addr, size_t size)
+{
+ clean_cache_range(addr, size);
+}
+EXPORT_SYMBOL_GPL(arch_wb_cache_pmem);
+
+long __copy_user_flushcache(void *dst, const void __user *src, unsigned size)
+{
+ unsigned long flushed, dest = (unsigned long) dst;
+ long rc = __copy_user_nocache(dst, src, size, 0);
+
+ /*
+ * __copy_user_nocache() uses non-temporal stores for the bulk
+ * of the transfer, but we need to manually flush if the
+ * transfer is unaligned. A cached memory copy is used when
+ * destination or size is not naturally aligned. That is:
+ * - Require 8-byte alignment when size is 8 bytes or larger.
+ * - Require 4-byte alignment when size is 4 bytes.
+ */
+ if (size < 8) {
+ if (!IS_ALIGNED(dest, 4) || size != 4)
+ clean_cache_range(dst, 1);
+ } else {
+ if (!IS_ALIGNED(dest, 8)) {
+ dest = ALIGN(dest, boot_cpu_data.x86_clflush_size);
+ clean_cache_range(dst, 1);
+ }
+
+ flushed = dest - (unsigned long) dst;
+ if (size > flushed && !IS_ALIGNED(size - flushed, 8))
+ clean_cache_range(dst + size - 1, 1);
+ }
+
+ return rc;
+}
+
+void memcpy_flushcache(void *_dst, const void *_src, size_t size)
+{
+ unsigned long dest = (unsigned long) _dst;
+ unsigned long source = (unsigned long) _src;
+
+ /* cache copy and flush to align dest */
+ if (!IS_ALIGNED(dest, 8)) {
+ unsigned len = min_t(unsigned, size, ALIGN(dest, 8) - dest);
+
+ memcpy((void *) dest, (void *) source, len);
+ clean_cache_range((void *) dest, len);
+ dest += len;
+ source += len;
+ size -= len;
+ if (!size)
+ return;
+ }
+
+ /* 4x8 movnti loop */
+ while (size >= 32) {
+ asm("movq (%0), %%r8\n"
+ "movq 8(%0), %%r9\n"
+ "movq 16(%0), %%r10\n"
+ "movq 24(%0), %%r11\n"
+ "movnti %%r8, (%1)\n"
+ "movnti %%r9, 8(%1)\n"
+ "movnti %%r10, 16(%1)\n"
+ "movnti %%r11, 24(%1)\n"
+ :: "r" (source), "r" (dest)
+ : "memory", "r8", "r9", "r10", "r11");
+ dest += 32;
+ source += 32;
+ size -= 32;
+ }
+
+ /* 1x8 movnti loop */
+ while (size >= 8) {
+ asm("movq (%0), %%r8\n"
+ "movnti %%r8, (%1)\n"
+ :: "r" (source), "r" (dest)
+ : "memory", "r8");
+ dest += 8;
+ source += 8;
+ size -= 8;
+ }
+
+ /* 1x4 movnti loop */
+ while (size >= 4) {
+ asm("movl (%0), %%r8d\n"
+ "movnti %%r8d, (%1)\n"
+ :: "r" (source), "r" (dest)
+ : "memory", "r8");
+ dest += 4;
+ source += 4;
+ size -= 4;
+ }
+
+ /* cache copy for remaining bytes */
+ if (size) {
+ memcpy((void *) dest, (void *) source, size);
+ clean_cache_range((void *) dest, size);
+ }
+}
+EXPORT_SYMBOL_GPL(memcpy_flushcache);
+
+void memcpy_page_flushcache(char *to, struct page *page, size_t offset,
+ size_t len)
+{
+ char *from = kmap_atomic(page);
+
+ memcpy_flushcache(to, from + offset, len);
+ kunmap_atomic(from);
+}
+#endif
diff --git a/arch/x86/lib/x86-opcode-map.txt b/arch/x86/lib/x86-opcode-map.txt
index 767be7c76034..12e377184ee4 100644
--- a/arch/x86/lib/x86-opcode-map.txt
+++ b/arch/x86/lib/x86-opcode-map.txt
@@ -1009,7 +1009,7 @@ GrpTable: Grp15
1: fxstor | RDGSBASE Ry (F3),(11B)
2: vldmxcsr Md (v1) | WRFSBASE Ry (F3),(11B)
3: vstmxcsr Md (v1) | WRGSBASE Ry (F3),(11B)
-4: XSAVE
+4: XSAVE | ptwrite Ey (F3),(11B)
5: XRSTOR | lfence (11B)
6: XSAVEOPT | clwb (66) | mfence (11B)
7: clflush | clflushopt (66) | sfence (11B)
diff --git a/arch/x86/math-emu/Makefile b/arch/x86/math-emu/Makefile
index 9b0c63b60302..1b2dac174321 100644
--- a/arch/x86/math-emu/Makefile
+++ b/arch/x86/math-emu/Makefile
@@ -5,8 +5,8 @@
#DEBUG = -DDEBUGGING
DEBUG =
PARANOID = -DPARANOID
-EXTRA_CFLAGS := $(PARANOID) $(DEBUG) -fno-builtin $(MATH_EMULATION)
-EXTRA_AFLAGS := $(PARANOID)
+ccflags-y += $(PARANOID) $(DEBUG) -fno-builtin $(MATH_EMULATION)
+asflags-y += $(PARANOID)
# From 'C' language sources:
C_OBJS =fpu_entry.o errors.o \
diff --git a/arch/x86/math-emu/div_Xsig.S b/arch/x86/math-emu/div_Xsig.S
index f77ba3058b31..066996dba6a2 100644
--- a/arch/x86/math-emu/div_Xsig.S
+++ b/arch/x86/math-emu/div_Xsig.S
@@ -363,3 +363,4 @@ L_bugged_2:
pop %ebx
jmp L_exit
#endif /* PARANOID */
+ENDPROC(div_Xsig)
diff --git a/arch/x86/math-emu/div_small.S b/arch/x86/math-emu/div_small.S
index 47099628fa4c..2c71527bd917 100644
--- a/arch/x86/math-emu/div_small.S
+++ b/arch/x86/math-emu/div_small.S
@@ -44,4 +44,4 @@ ENTRY(FPU_div_small)
leave
ret
-
+ENDPROC(FPU_div_small)
diff --git a/arch/x86/math-emu/fpu_emu.h b/arch/x86/math-emu/fpu_emu.h
index afbc4d805d66..c9c320dccca1 100644
--- a/arch/x86/math-emu/fpu_emu.h
+++ b/arch/x86/math-emu/fpu_emu.h
@@ -157,7 +157,7 @@ extern u_char const data_sizes_16[32];
#define signbyte(a) (((u_char *)(a))[9])
#define getsign(a) (signbyte(a) & 0x80)
-#define setsign(a,b) { if (b) signbyte(a) |= 0x80; else signbyte(a) &= 0x7f; }
+#define setsign(a,b) { if ((b) != 0) signbyte(a) |= 0x80; else signbyte(a) &= 0x7f; }
#define copysign(a,b) { if (getsign(a)) signbyte(b) |= 0x80; \
else signbyte(b) &= 0x7f; }
#define changesign(a) { signbyte(a) ^= 0x80; }
diff --git a/arch/x86/math-emu/fpu_entry.c b/arch/x86/math-emu/fpu_entry.c
index 0203baefb5c0..220638a4cb94 100644
--- a/arch/x86/math-emu/fpu_entry.c
+++ b/arch/x86/math-emu/fpu_entry.c
@@ -114,7 +114,7 @@ void math_emulate(struct math_emu_info *info)
struct desc_struct code_descriptor;
struct fpu *fpu = &current->thread.fpu;
- fpu__activate_curr(fpu);
+ fpu__initialize(fpu);
#ifdef RE_ENTRANT_CHECKING
if (emulating) {
@@ -147,7 +147,7 @@ void math_emulate(struct math_emu_info *info)
}
code_descriptor = FPU_get_ldt_descriptor(FPU_CS);
- if (SEG_D_SIZE(code_descriptor)) {
+ if (code_descriptor.d) {
/* The above test may be wrong, the book is not clear */
/* Segmented 32 bit protected mode */
addr_modes.default_mode = SEG32;
@@ -155,11 +155,10 @@ void math_emulate(struct math_emu_info *info)
/* 16 bit protected mode */
addr_modes.default_mode = PM16;
}
- FPU_EIP += code_base = SEG_BASE_ADDR(code_descriptor);
- code_limit = code_base
- + (SEG_LIMIT(code_descriptor) +
- 1) * SEG_GRANULARITY(code_descriptor)
- - 1;
+ FPU_EIP += code_base = seg_get_base(&code_descriptor);
+ code_limit = seg_get_limit(&code_descriptor) + 1;
+ code_limit *= seg_get_granularity(&code_descriptor);
+ code_limit += code_base - 1;
if (code_limit < code_base)
code_limit = 0xffffffff;
}
diff --git a/arch/x86/math-emu/fpu_system.h b/arch/x86/math-emu/fpu_system.h
index 5e044d506b7a..699f329f1d40 100644
--- a/arch/x86/math-emu/fpu_system.h
+++ b/arch/x86/math-emu/fpu_system.h
@@ -27,24 +27,50 @@ static inline struct desc_struct FPU_get_ldt_descriptor(unsigned seg)
#ifdef CONFIG_MODIFY_LDT_SYSCALL
seg >>= 3;
mutex_lock(&current->mm->context.lock);
- if (current->mm->context.ldt && seg < current->mm->context.ldt->size)
+ if (current->mm->context.ldt && seg < current->mm->context.ldt->nr_entries)
ret = current->mm->context.ldt->entries[seg];
mutex_unlock(&current->mm->context.lock);
#endif
return ret;
}
-#define SEG_D_SIZE(x) ((x).b & (3 << 21))
-#define SEG_G_BIT(x) ((x).b & (1 << 23))
-#define SEG_GRANULARITY(x) (((x).b & (1 << 23)) ? 4096 : 1)
-#define SEG_286_MODE(x) ((x).b & ( 0xff000000 | 0xf0000 | (1 << 23)))
-#define SEG_BASE_ADDR(s) (((s).b & 0xff000000) \
- | (((s).b & 0xff) << 16) | ((s).a >> 16))
-#define SEG_LIMIT(s) (((s).b & 0xff0000) | ((s).a & 0xffff))
-#define SEG_EXECUTE_ONLY(s) (((s).b & ((1 << 11) | (1 << 9))) == (1 << 11))
-#define SEG_WRITE_PERM(s) (((s).b & ((1 << 11) | (1 << 9))) == (1 << 9))
-#define SEG_EXPAND_DOWN(s) (((s).b & ((1 << 11) | (1 << 10))) \
- == (1 << 10))
+#define SEG_TYPE_WRITABLE (1U << 1)
+#define SEG_TYPE_EXPANDS_DOWN (1U << 2)
+#define SEG_TYPE_EXECUTE (1U << 3)
+#define SEG_TYPE_EXPAND_MASK (SEG_TYPE_EXPANDS_DOWN | SEG_TYPE_EXECUTE)
+#define SEG_TYPE_EXECUTE_MASK (SEG_TYPE_WRITABLE | SEG_TYPE_EXECUTE)
+
+static inline unsigned long seg_get_base(struct desc_struct *d)
+{
+ unsigned long base = (unsigned long)d->base2 << 24;
+
+ return base | ((unsigned long)d->base1 << 16) | d->base0;
+}
+
+static inline unsigned long seg_get_limit(struct desc_struct *d)
+{
+ return ((unsigned long)d->limit1 << 16) | d->limit0;
+}
+
+static inline unsigned long seg_get_granularity(struct desc_struct *d)
+{
+ return d->g ? 4096 : 1;
+}
+
+static inline bool seg_expands_down(struct desc_struct *d)
+{
+ return (d->type & SEG_TYPE_EXPAND_MASK) == SEG_TYPE_EXPANDS_DOWN;
+}
+
+static inline bool seg_execute_only(struct desc_struct *d)
+{
+ return (d->type & SEG_TYPE_EXECUTE_MASK) == SEG_TYPE_EXECUTE;
+}
+
+static inline bool seg_writable(struct desc_struct *d)
+{
+ return (d->type & SEG_TYPE_EXECUTE_MASK) == SEG_TYPE_WRITABLE;
+}
#define I387 (&current->thread.fpu.state)
#define FPU_info (I387->soft.info)
diff --git a/arch/x86/math-emu/get_address.c b/arch/x86/math-emu/get_address.c
index b8ef9f9d2ffc..c48967c6a0e2 100644
--- a/arch/x86/math-emu/get_address.c
+++ b/arch/x86/math-emu/get_address.c
@@ -159,17 +159,18 @@ static long pm_address(u_char FPU_modrm, u_char segment,
}
descriptor = FPU_get_ldt_descriptor(addr->selector);
- base_address = SEG_BASE_ADDR(descriptor);
+ base_address = seg_get_base(&descriptor);
address = base_address + offset;
- limit = base_address
- + (SEG_LIMIT(descriptor) + 1) * SEG_GRANULARITY(descriptor) - 1;
+ limit = seg_get_limit(&descriptor) + 1;
+ limit *= seg_get_granularity(&descriptor);
+ limit += base_address - 1;
if (limit < base_address)
limit = 0xffffffff;
- if (SEG_EXPAND_DOWN(descriptor)) {
- if (SEG_G_BIT(descriptor))
+ if (seg_expands_down(&descriptor)) {
+ if (descriptor.g) {
seg_top = 0xffffffff;
- else {
+ } else {
seg_top = base_address + (1 << 20);
if (seg_top < base_address)
seg_top = 0xffffffff;
@@ -182,8 +183,8 @@ static long pm_address(u_char FPU_modrm, u_char segment,
(address > limit) || (address < base_address) ? 0 :
((limit - address) >= 254 ? 255 : limit - address + 1);
}
- if (SEG_EXECUTE_ONLY(descriptor) ||
- (!SEG_WRITE_PERM(descriptor) && (FPU_modrm & FPU_WRITE_BIT))) {
+ if (seg_execute_only(&descriptor) ||
+ (!seg_writable(&descriptor) && (FPU_modrm & FPU_WRITE_BIT))) {
access_limit = 0;
}
return address;
diff --git a/arch/x86/math-emu/mul_Xsig.S b/arch/x86/math-emu/mul_Xsig.S
index 717785a53eb4..22e0631bb85a 100644
--- a/arch/x86/math-emu/mul_Xsig.S
+++ b/arch/x86/math-emu/mul_Xsig.S
@@ -62,6 +62,7 @@ ENTRY(mul32_Xsig)
popl %esi
leave
ret
+ENDPROC(mul32_Xsig)
ENTRY(mul64_Xsig)
@@ -114,6 +115,7 @@ ENTRY(mul64_Xsig)
popl %esi
leave
ret
+ENDPROC(mul64_Xsig)
@@ -173,4 +175,4 @@ ENTRY(mul_Xsig_Xsig)
popl %esi
leave
ret
-
+ENDPROC(mul_Xsig_Xsig)
diff --git a/arch/x86/math-emu/polynom_Xsig.S b/arch/x86/math-emu/polynom_Xsig.S
index 17315c89ff3d..a9aaf414135d 100644
--- a/arch/x86/math-emu/polynom_Xsig.S
+++ b/arch/x86/math-emu/polynom_Xsig.S
@@ -133,3 +133,4 @@ L_accum_done:
popl %esi
leave
ret
+ENDPROC(polynomial_Xsig)
diff --git a/arch/x86/math-emu/reg_compare.c b/arch/x86/math-emu/reg_compare.c
index b77360fdbf4a..19b33b50adfa 100644
--- a/arch/x86/math-emu/reg_compare.c
+++ b/arch/x86/math-emu/reg_compare.c
@@ -168,7 +168,7 @@ static int compare(FPU_REG const *b, int tagb)
/* This function requires that st(0) is not empty */
int FPU_compare_st_data(FPU_REG const *loaded_data, u_char loaded_tag)
{
- int f = 0, c;
+ int f, c;
c = compare(loaded_data, loaded_tag);
@@ -189,12 +189,12 @@ int FPU_compare_st_data(FPU_REG const *loaded_data, u_char loaded_tag)
case COMP_No_Comp:
f = SW_C3 | SW_C2 | SW_C0;
break;
-#ifdef PARANOID
default:
+#ifdef PARANOID
EXCEPTION(EX_INTERNAL | 0x121);
+#endif /* PARANOID */
f = SW_C3 | SW_C2 | SW_C0;
break;
-#endif /* PARANOID */
}
setcc(f);
if (c & COMP_Denormal) {
@@ -205,7 +205,7 @@ int FPU_compare_st_data(FPU_REG const *loaded_data, u_char loaded_tag)
static int compare_st_st(int nr)
{
- int f = 0, c;
+ int f, c;
FPU_REG *st_ptr;
if (!NOT_EMPTY(0) || !NOT_EMPTY(nr)) {
@@ -235,12 +235,12 @@ static int compare_st_st(int nr)
case COMP_No_Comp:
f = SW_C3 | SW_C2 | SW_C0;
break;
-#ifdef PARANOID
default:
+#ifdef PARANOID
EXCEPTION(EX_INTERNAL | 0x122);
+#endif /* PARANOID */
f = SW_C3 | SW_C2 | SW_C0;
break;
-#endif /* PARANOID */
}
setcc(f);
if (c & COMP_Denormal) {
@@ -283,12 +283,12 @@ static int compare_i_st_st(int nr)
case COMP_No_Comp:
f = X86_EFLAGS_ZF | X86_EFLAGS_PF | X86_EFLAGS_CF;
break;
-#ifdef PARANOID
default:
+#ifdef PARANOID
EXCEPTION(EX_INTERNAL | 0x122);
+#endif /* PARANOID */
f = 0;
break;
-#endif /* PARANOID */
}
FPU_EFLAGS = (FPU_EFLAGS & ~(X86_EFLAGS_ZF | X86_EFLAGS_PF | X86_EFLAGS_CF)) | f;
if (c & COMP_Denormal) {
diff --git a/arch/x86/math-emu/reg_norm.S b/arch/x86/math-emu/reg_norm.S
index 8b6352efceef..53ac1a343c69 100644
--- a/arch/x86/math-emu/reg_norm.S
+++ b/arch/x86/math-emu/reg_norm.S
@@ -94,6 +94,7 @@ L_overflow:
call arith_overflow
pop %ebx
jmp L_exit
+ENDPROC(FPU_normalize)
@@ -145,3 +146,4 @@ L_exit_nuo_zero:
popl %ebx
leave
ret
+ENDPROC(FPU_normalize_nuo)
diff --git a/arch/x86/math-emu/reg_round.S b/arch/x86/math-emu/reg_round.S
index d1d4e48b4f67..41af5b208d88 100644
--- a/arch/x86/math-emu/reg_round.S
+++ b/arch/x86/math-emu/reg_round.S
@@ -706,3 +706,5 @@ L_exception_exit:
mov $-1,%eax
jmp fpu_reg_round_special_exit
#endif /* PARANOID */
+
+ENDPROC(FPU_round)
diff --git a/arch/x86/math-emu/reg_u_add.S b/arch/x86/math-emu/reg_u_add.S
index 47c4c2434d85..3b1bc5e9b2f6 100644
--- a/arch/x86/math-emu/reg_u_add.S
+++ b/arch/x86/math-emu/reg_u_add.S
@@ -165,3 +165,4 @@ L_exit:
leave
ret
#endif /* PARANOID */
+ENDPROC(FPU_u_add)
diff --git a/arch/x86/math-emu/reg_u_div.S b/arch/x86/math-emu/reg_u_div.S
index cc00654b6f9a..796eb5ab921b 100644
--- a/arch/x86/math-emu/reg_u_div.S
+++ b/arch/x86/math-emu/reg_u_div.S
@@ -469,3 +469,5 @@ L_exit:
leave
ret
#endif /* PARANOID */
+
+ENDPROC(FPU_u_div)
diff --git a/arch/x86/math-emu/reg_u_mul.S b/arch/x86/math-emu/reg_u_mul.S
index 973f12af97df..6196f68cf3c1 100644
--- a/arch/x86/math-emu/reg_u_mul.S
+++ b/arch/x86/math-emu/reg_u_mul.S
@@ -146,3 +146,4 @@ L_exit:
ret
#endif /* PARANOID */
+ENDPROC(FPU_u_mul)
diff --git a/arch/x86/math-emu/reg_u_sub.S b/arch/x86/math-emu/reg_u_sub.S
index 1b6c24801d22..d115b900919a 100644
--- a/arch/x86/math-emu/reg_u_sub.S
+++ b/arch/x86/math-emu/reg_u_sub.S
@@ -270,3 +270,4 @@ L_exit:
popl %esi
leave
ret
+ENDPROC(FPU_u_sub)
diff --git a/arch/x86/math-emu/round_Xsig.S b/arch/x86/math-emu/round_Xsig.S
index bbe0e87718e4..87c99749a495 100644
--- a/arch/x86/math-emu/round_Xsig.S
+++ b/arch/x86/math-emu/round_Xsig.S
@@ -78,7 +78,7 @@ L_exit:
popl %ebx
leave
ret
-
+ENDPROC(round_Xsig)
@@ -138,4 +138,4 @@ L_n_exit:
popl %ebx
leave
ret
-
+ENDPROC(norm_Xsig)
diff --git a/arch/x86/math-emu/shr_Xsig.S b/arch/x86/math-emu/shr_Xsig.S
index 31cdd118e918..c8552edeec75 100644
--- a/arch/x86/math-emu/shr_Xsig.S
+++ b/arch/x86/math-emu/shr_Xsig.S
@@ -85,3 +85,4 @@ L_more_than_95:
popl %esi
leave
ret
+ENDPROC(shr_Xsig)
diff --git a/arch/x86/math-emu/wm_shrx.S b/arch/x86/math-emu/wm_shrx.S
index 518428317985..340dd6897f85 100644
--- a/arch/x86/math-emu/wm_shrx.S
+++ b/arch/x86/math-emu/wm_shrx.S
@@ -92,6 +92,7 @@ L_more_than_95:
popl %esi
leave
ret
+ENDPROC(FPU_shrx)
/*---------------------------------------------------------------------------+
@@ -202,3 +203,4 @@ Ls_more_than_95:
popl %esi
leave
ret
+ENDPROC(FPU_shrxs)
diff --git a/arch/x86/math-emu/wm_sqrt.S b/arch/x86/math-emu/wm_sqrt.S
index d258f59564e1..695afae38fdf 100644
--- a/arch/x86/math-emu/wm_sqrt.S
+++ b/arch/x86/math-emu/wm_sqrt.S
@@ -468,3 +468,4 @@ sqrt_more_prec_large:
/* Our estimate is too large */
movl $0x7fffff00,%eax
jmp sqrt_round_result
+ENDPROC(wm_sqrt)
diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile
index 96d2b847e09e..e1f095884386 100644
--- a/arch/x86/mm/Makefile
+++ b/arch/x86/mm/Makefile
@@ -1,8 +1,15 @@
-# Kernel does not boot with instrumentation of tlb.c.
-KCOV_INSTRUMENT_tlb.o := n
+# Kernel does not boot with instrumentation of tlb.c and mem_encrypt.c
+KCOV_INSTRUMENT_tlb.o := n
+KCOV_INSTRUMENT_mem_encrypt.o := n
+
+KASAN_SANITIZE_mem_encrypt.o := n
+
+ifdef CONFIG_FUNCTION_TRACER
+CFLAGS_REMOVE_mem_encrypt.o = -pg
+endif
obj-y := init.o init_$(BITS).o fault.o ioremap.o extable.o pageattr.o mmap.o \
- pat.o pgtable.o physaddr.o gup.o setup_nx.o tlb.o
+ pat.o pgtable.o physaddr.o setup_nx.o tlb.o
# Make sure __phys_addr has no stackprotector
nostackp := $(call cc-option, -fno-stack-protector)
@@ -39,3 +46,5 @@ obj-$(CONFIG_X86_INTEL_MPX) += mpx.o
obj-$(CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS) += pkeys.o
obj-$(CONFIG_RANDOMIZE_MEMORY) += kaslr.o
+obj-$(CONFIG_AMD_MEM_ENCRYPT) += mem_encrypt.o
+obj-$(CONFIG_AMD_MEM_ENCRYPT) += mem_encrypt_boot.o
diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c
index bce6990b1d81..5e3ac6fe6c9e 100644
--- a/arch/x86/mm/dump_pagetables.c
+++ b/arch/x86/mm/dump_pagetables.c
@@ -13,12 +13,12 @@
*/
#include <linux/debugfs.h>
+#include <linux/kasan.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/seq_file.h>
-#include <asm/kasan.h>
#include <asm/pgtable.h>
/*
@@ -138,7 +138,7 @@ static void printk_prot(struct seq_file *m, pgprot_t prot, int level, bool dmsg)
{
pgprotval_t pr = pgprot_val(prot);
static const char * const level_name[] =
- { "cr3", "pgd", "pud", "pmd", "pte" };
+ { "cr3", "pgd", "p4d", "pud", "pmd", "pte" };
if (!pgprot_val(prot)) {
/* Not present */
@@ -162,12 +162,12 @@ static void printk_prot(struct seq_file *m, pgprot_t prot, int level, bool dmsg)
pt_dump_cont_printf(m, dmsg, " ");
/* Bit 7 has a different meaning on level 3 vs 4 */
- if (level <= 3 && pr & _PAGE_PSE)
+ if (level <= 4 && pr & _PAGE_PSE)
pt_dump_cont_printf(m, dmsg, "PSE ");
else
pt_dump_cont_printf(m, dmsg, " ");
- if ((level == 4 && pr & _PAGE_PAT) ||
- ((level == 3 || level == 2) && pr & _PAGE_PAT_LARGE))
+ if ((level == 5 && pr & _PAGE_PAT) ||
+ ((level == 4 || level == 3) && pr & _PAGE_PAT_LARGE))
pt_dump_cont_printf(m, dmsg, "PAT ");
else
pt_dump_cont_printf(m, dmsg, " ");
@@ -188,11 +188,12 @@ static void printk_prot(struct seq_file *m, pgprot_t prot, int level, bool dmsg)
*/
static unsigned long normalize_addr(unsigned long u)
{
-#ifdef CONFIG_X86_64
- return (signed long)(u << 16) >> 16;
-#else
- return u;
-#endif
+ int shift;
+ if (!IS_ENABLED(CONFIG_X86_64))
+ return u;
+
+ shift = 64 - (__VIRTUAL_MASK_SHIFT + 1);
+ return (signed long)(u << shift) >> shift;
}
/*
@@ -297,32 +298,62 @@ static void walk_pte_level(struct seq_file *m, struct pg_state *st, pmd_t addr,
for (i = 0; i < PTRS_PER_PTE; i++) {
prot = pte_flags(*start);
st->current_address = normalize_addr(P + i * PTE_LEVEL_MULT);
- note_page(m, st, __pgprot(prot), 4);
+ note_page(m, st, __pgprot(prot), 5);
start++;
}
}
+#ifdef CONFIG_KASAN
+
+/*
+ * This is an optimization for KASAN=y case. Since all kasan page tables
+ * eventually point to the kasan_zero_page we could call note_page()
+ * right away without walking through lower level page tables. This saves
+ * us dozens of seconds (minutes for 5-level config) while checking for
+ * W+X mapping or reading kernel_page_tables debugfs file.
+ */
+static inline bool kasan_page_table(struct seq_file *m, struct pg_state *st,
+ void *pt)
+{
+ if (__pa(pt) == __pa(kasan_zero_pmd) ||
+#ifdef CONFIG_X86_5LEVEL
+ __pa(pt) == __pa(kasan_zero_p4d) ||
+#endif
+ __pa(pt) == __pa(kasan_zero_pud)) {
+ pgprotval_t prot = pte_flags(kasan_zero_pte[0]);
+ note_page(m, st, __pgprot(prot), 5);
+ return true;
+ }
+ return false;
+}
+#else
+static inline bool kasan_page_table(struct seq_file *m, struct pg_state *st,
+ void *pt)
+{
+ return false;
+}
+#endif
#if PTRS_PER_PMD > 1
static void walk_pmd_level(struct seq_file *m, struct pg_state *st, pud_t addr, unsigned long P)
{
int i;
- pmd_t *start;
+ pmd_t *start, *pmd_start;
pgprotval_t prot;
- start = (pmd_t *)pud_page_vaddr(addr);
+ pmd_start = start = (pmd_t *)pud_page_vaddr(addr);
for (i = 0; i < PTRS_PER_PMD; i++) {
st->current_address = normalize_addr(P + i * PMD_LEVEL_MULT);
if (!pmd_none(*start)) {
if (pmd_large(*start) || !pmd_present(*start)) {
prot = pmd_flags(*start);
- note_page(m, st, __pgprot(prot), 3);
- } else {
+ note_page(m, st, __pgprot(prot), 4);
+ } else if (!kasan_page_table(m, st, pmd_start)) {
walk_pte_level(m, st, *start,
P + i * PMD_LEVEL_MULT);
}
} else
- note_page(m, st, __pgprot(0), 3);
+ note_page(m, st, __pgprot(0), 4);
start++;
}
}
@@ -335,39 +366,27 @@ static void walk_pmd_level(struct seq_file *m, struct pg_state *st, pud_t addr,
#if PTRS_PER_PUD > 1
-/*
- * This is an optimization for CONFIG_DEBUG_WX=y + CONFIG_KASAN=y
- * KASAN fills page tables with the same values. Since there is no
- * point in checking page table more than once we just skip repeated
- * entries. This saves us dozens of seconds during boot.
- */
-static bool pud_already_checked(pud_t *prev_pud, pud_t *pud, bool checkwx)
-{
- return checkwx && prev_pud && (pud_val(*prev_pud) == pud_val(*pud));
-}
-
static void walk_pud_level(struct seq_file *m, struct pg_state *st, p4d_t addr, unsigned long P)
{
int i;
- pud_t *start;
+ pud_t *start, *pud_start;
pgprotval_t prot;
pud_t *prev_pud = NULL;
- start = (pud_t *)p4d_page_vaddr(addr);
+ pud_start = start = (pud_t *)p4d_page_vaddr(addr);
for (i = 0; i < PTRS_PER_PUD; i++) {
st->current_address = normalize_addr(P + i * PUD_LEVEL_MULT);
- if (!pud_none(*start) &&
- !pud_already_checked(prev_pud, start, st->check_wx)) {
+ if (!pud_none(*start)) {
if (pud_large(*start) || !pud_present(*start)) {
prot = pud_flags(*start);
- note_page(m, st, __pgprot(prot), 2);
- } else {
+ note_page(m, st, __pgprot(prot), 3);
+ } else if (!kasan_page_table(m, st, pud_start)) {
walk_pmd_level(m, st, *start,
P + i * PUD_LEVEL_MULT);
}
} else
- note_page(m, st, __pgprot(0), 2);
+ note_page(m, st, __pgprot(0), 3);
prev_pud = start;
start++;
@@ -385,10 +404,10 @@ static void walk_pud_level(struct seq_file *m, struct pg_state *st, p4d_t addr,
static void walk_p4d_level(struct seq_file *m, struct pg_state *st, pgd_t addr, unsigned long P)
{
int i;
- p4d_t *start;
+ p4d_t *start, *p4d_start;
pgprotval_t prot;
- start = (p4d_t *)pgd_page_vaddr(addr);
+ p4d_start = start = (p4d_t *)pgd_page_vaddr(addr);
for (i = 0; i < PTRS_PER_P4D; i++) {
st->current_address = normalize_addr(P + i * P4D_LEVEL_MULT);
@@ -396,7 +415,7 @@ static void walk_p4d_level(struct seq_file *m, struct pg_state *st, pgd_t addr,
if (p4d_large(*start) || !p4d_present(*start)) {
prot = p4d_flags(*start);
note_page(m, st, __pgprot(prot), 2);
- } else {
+ } else if (!kasan_page_table(m, st, p4d_start)) {
walk_pud_level(m, st, *start,
P + i * P4D_LEVEL_MULT);
}
@@ -431,7 +450,7 @@ static void ptdump_walk_pgd_level_core(struct seq_file *m, pgd_t *pgd,
bool checkwx)
{
#ifdef CONFIG_X86_64
- pgd_t *start = (pgd_t *) &init_level4_pgt;
+ pgd_t *start = (pgd_t *) &init_top_pgt;
#else
pgd_t *start = swapper_pg_dir;
#endif
diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c
index 0ea8afcb929c..c3521e2be396 100644
--- a/arch/x86/mm/extable.c
+++ b/arch/x86/mm/extable.c
@@ -2,6 +2,7 @@
#include <linux/uaccess.h>
#include <linux/sched/debug.h>
+#include <asm/fpu/internal.h>
#include <asm/traps.h>
#include <asm/kdebug.h>
@@ -36,6 +37,71 @@ bool ex_handler_fault(const struct exception_table_entry *fixup,
}
EXPORT_SYMBOL_GPL(ex_handler_fault);
+/*
+ * Handler for UD0 exception following a failed test against the
+ * result of a refcount inc/dec/add/sub.
+ */
+bool ex_handler_refcount(const struct exception_table_entry *fixup,
+ struct pt_regs *regs, int trapnr)
+{
+ /* First unconditionally saturate the refcount. */
+ *(int *)regs->cx = INT_MIN / 2;
+
+ /*
+ * Strictly speaking, this reports the fixup destination, not
+ * the fault location, and not the actually overflowing
+ * instruction, which is the instruction before the "js", but
+ * since that instruction could be a variety of lengths, just
+ * report the location after the overflow, which should be close
+ * enough for finding the overflow, as it's at least back in
+ * the function, having returned from .text.unlikely.
+ */
+ regs->ip = ex_fixup_addr(fixup);
+
+ /*
+ * This function has been called because either a negative refcount
+ * value was seen by any of the refcount functions, or a zero
+ * refcount value was seen by refcount_dec().
+ *
+ * If we crossed from INT_MAX to INT_MIN, OF (Overflow Flag: result
+ * wrapped around) will be set. Additionally, seeing the refcount
+ * reach 0 will set ZF (Zero Flag: result was zero). In each of
+ * these cases we want a report, since it's a boundary condition.
+ *
+ */
+ if (regs->flags & (X86_EFLAGS_OF | X86_EFLAGS_ZF)) {
+ bool zero = regs->flags & X86_EFLAGS_ZF;
+
+ refcount_error_report(regs, zero ? "hit zero" : "overflow");
+ }
+
+ return true;
+}
+EXPORT_SYMBOL_GPL(ex_handler_refcount);
+
+/*
+ * Handler for when we fail to restore a task's FPU state. We should never get
+ * here because the FPU state of a task using the FPU (task->thread.fpu.state)
+ * should always be valid. However, past bugs have allowed userspace to set
+ * reserved bits in the XSAVE area using PTRACE_SETREGSET or sys_rt_sigreturn().
+ * These caused XRSTOR to fail when switching to the task, leaking the FPU
+ * registers of the task previously executing on the CPU. Mitigate this class
+ * of vulnerability by restoring from the initial state (essentially, zeroing
+ * out all the FPU registers) if we can't restore from the task's FPU state.
+ */
+bool ex_handler_fprestore(const struct exception_table_entry *fixup,
+ struct pt_regs *regs, int trapnr)
+{
+ regs->ip = ex_fixup_addr(fixup);
+
+ WARN_ONCE(1, "Bad FPU state detected at %pB, reinitializing FPU registers.",
+ (void *)instruction_pointer(regs));
+
+ __copy_kernel_to_fpregs(&init_fpstate, -1);
+ return true;
+}
+EXPORT_SYMBOL_GPL(ex_handler_fprestore);
+
bool ex_handler_ext(const struct exception_table_entry *fixup,
struct pt_regs *regs, int trapnr)
{
@@ -142,7 +208,7 @@ void __init early_fixup_exception(struct pt_regs *regs, int trapnr)
* undefined. I'm not sure which CPUs do this, but at least
* the 486 DX works this way.
*/
- if ((regs->cs & 0xFFFF) != __KERNEL_CS)
+ if (regs->cs != __KERNEL_CS)
goto fail;
/*
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 8ad91a01cbc8..e2baeaa053a5 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -192,8 +192,7 @@ is_prefetch(struct pt_regs *regs, unsigned long error_code, unsigned long addr)
* 6. T1 : reaches here, sees vma_pkey(vma)=5, when we really
* faulted on a pte with its pkey=4.
*/
-static void fill_sig_info_pkey(int si_code, siginfo_t *info,
- struct vm_area_struct *vma)
+static void fill_sig_info_pkey(int si_code, siginfo_t *info, u32 *pkey)
{
/* This is effectively an #ifdef */
if (!boot_cpu_has(X86_FEATURE_OSPKE))
@@ -209,7 +208,7 @@ static void fill_sig_info_pkey(int si_code, siginfo_t *info,
* valid VMA, so we should never reach this without a
* valid VMA.
*/
- if (!vma) {
+ if (!pkey) {
WARN_ONCE(1, "PKU fault with no VMA passed in");
info->si_pkey = 0;
return;
@@ -219,13 +218,12 @@ static void fill_sig_info_pkey(int si_code, siginfo_t *info,
* absolutely guranteed to be 100% accurate because of
* the race explained above.
*/
- info->si_pkey = vma_pkey(vma);
+ info->si_pkey = *pkey;
}
static void
force_sig_info_fault(int si_signo, int si_code, unsigned long address,
- struct task_struct *tsk, struct vm_area_struct *vma,
- int fault)
+ struct task_struct *tsk, u32 *pkey, int fault)
{
unsigned lsb = 0;
siginfo_t info;
@@ -240,7 +238,7 @@ force_sig_info_fault(int si_signo, int si_code, unsigned long address,
lsb = PAGE_SHIFT;
info.si_addr_lsb = lsb;
- fill_sig_info_pkey(si_code, &info, vma);
+ fill_sig_info_pkey(si_code, &info, pkey);
force_sig_info(si_signo, &info, tsk);
}
@@ -346,7 +344,7 @@ static noinline int vmalloc_fault(unsigned long address)
* Do _not_ use "current" here. We might be inside
* an interrupt in the middle of a task switch..
*/
- pgd_paddr = read_cr3();
+ pgd_paddr = read_cr3_pa();
pmd_k = vmalloc_sync_one(__va(pgd_paddr), address);
if (!pmd_k)
return -1;
@@ -388,7 +386,7 @@ static bool low_pfn(unsigned long pfn)
static void dump_pagetable(unsigned long address)
{
- pgd_t *base = __va(read_cr3());
+ pgd_t *base = __va(read_cr3_pa());
pgd_t *pgd = &base[pgd_index(address)];
p4d_t *p4d;
pud_t *pud;
@@ -396,14 +394,18 @@ static void dump_pagetable(unsigned long address)
pte_t *pte;
#ifdef CONFIG_X86_PAE
- printk("*pdpt = %016Lx ", pgd_val(*pgd));
+ pr_info("*pdpt = %016Lx ", pgd_val(*pgd));
if (!low_pfn(pgd_val(*pgd) >> PAGE_SHIFT) || !pgd_present(*pgd))
goto out;
+#define pr_pde pr_cont
+#else
+#define pr_pde pr_info
#endif
p4d = p4d_offset(pgd, address);
pud = pud_offset(p4d, address);
pmd = pmd_offset(pud, address);
- printk(KERN_CONT "*pde = %0*Lx ", sizeof(*pmd) * 2, (u64)pmd_val(*pmd));
+ pr_pde("*pde = %0*Lx ", sizeof(*pmd) * 2, (u64)pmd_val(*pmd));
+#undef pr_pde
/*
* We must not directly access the pte in the highpte
@@ -415,9 +417,9 @@ static void dump_pagetable(unsigned long address)
goto out;
pte = pte_offset_kernel(pmd, address);
- printk("*pte = %0*Lx ", sizeof(*pte) * 2, (u64)pte_val(*pte));
+ pr_cont("*pte = %0*Lx ", sizeof(*pte) * 2, (u64)pte_val(*pte));
out:
- printk("\n");
+ pr_cont("\n");
}
#else /* CONFIG_X86_64: */
@@ -451,7 +453,7 @@ static noinline int vmalloc_fault(unsigned long address)
* happen within a race in page table update. In the later
* case just flush:
*/
- pgd = (pgd_t *)__va(read_cr3()) + pgd_index(address);
+ pgd = (pgd_t *)__va(read_cr3_pa()) + pgd_index(address);
pgd_ref = pgd_offset_k(address);
if (pgd_none(*pgd_ref))
return -1;
@@ -555,7 +557,7 @@ static int bad_address(void *p)
static void dump_pagetable(unsigned long address)
{
- pgd_t *base = __va(read_cr3() & PHYSICAL_PAGE_MASK);
+ pgd_t *base = __va(read_cr3_pa());
pgd_t *pgd = base + pgd_index(address);
p4d_t *p4d;
pud_t *pud;
@@ -565,7 +567,7 @@ static void dump_pagetable(unsigned long address)
if (bad_address(pgd))
goto bad;
- printk("PGD %lx ", pgd_val(*pgd));
+ pr_info("PGD %lx ", pgd_val(*pgd));
if (!pgd_present(*pgd))
goto out;
@@ -574,7 +576,7 @@ static void dump_pagetable(unsigned long address)
if (bad_address(p4d))
goto bad;
- printk("P4D %lx ", p4d_val(*p4d));
+ pr_cont("P4D %lx ", p4d_val(*p4d));
if (!p4d_present(*p4d) || p4d_large(*p4d))
goto out;
@@ -582,7 +584,7 @@ static void dump_pagetable(unsigned long address)
if (bad_address(pud))
goto bad;
- printk("PUD %lx ", pud_val(*pud));
+ pr_cont("PUD %lx ", pud_val(*pud));
if (!pud_present(*pud) || pud_large(*pud))
goto out;
@@ -590,7 +592,7 @@ static void dump_pagetable(unsigned long address)
if (bad_address(pmd))
goto bad;
- printk("PMD %lx ", pmd_val(*pmd));
+ pr_cont("PMD %lx ", pmd_val(*pmd));
if (!pmd_present(*pmd) || pmd_large(*pmd))
goto out;
@@ -598,12 +600,12 @@ static void dump_pagetable(unsigned long address)
if (bad_address(pte))
goto bad;
- printk("PTE %lx", pte_val(*pte));
+ pr_cont("PTE %lx", pte_val(*pte));
out:
- printk("\n");
+ pr_cont("\n");
return;
bad:
- printk("BAD\n");
+ pr_info("BAD\n");
}
#endif /* CONFIG_X86_64 */
@@ -700,7 +702,7 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code,
pgd_t *pgd;
pte_t *pte;
- pgd = __va(read_cr3() & PHYSICAL_PAGE_MASK);
+ pgd = __va(read_cr3_pa());
pgd += pgd_index(address);
pte = lookup_address_in_pgd(pgd, address, &level);
@@ -758,8 +760,6 @@ no_context(struct pt_regs *regs, unsigned long error_code,
struct task_struct *tsk = current;
unsigned long flags;
int sig;
- /* No context means no VMA to pass down */
- struct vm_area_struct *vma = NULL;
/* Are we prepared to handle this kernel fault? */
if (fixup_exception(regs, X86_TRAP_PF)) {
@@ -784,7 +784,7 @@ no_context(struct pt_regs *regs, unsigned long error_code,
/* XXX: hwpoison faults will set the wrong code. */
force_sig_info_fault(signal, si_code, address,
- tsk, vma, 0);
+ tsk, NULL, 0);
}
/*
@@ -802,7 +802,6 @@ no_context(struct pt_regs *regs, unsigned long error_code,
if (is_vmalloc_addr((void *)address) &&
(((unsigned long)tsk->stack - 1 - address < PAGE_SIZE) ||
address - ((unsigned long)tsk->stack + THREAD_SIZE) < PAGE_SIZE)) {
- register void *__sp asm("rsp");
unsigned long stack = this_cpu_read(orig_ist.ist[DOUBLEFAULT_STACK]) - sizeof(void *);
/*
* We're likely to be running with very little stack space
@@ -817,7 +816,7 @@ no_context(struct pt_regs *regs, unsigned long error_code,
asm volatile ("movq %[stack], %%rsp\n\t"
"call handle_stack_overflow\n\t"
"1: jmp 1b"
- : "+r" (__sp)
+ : ASM_CALL_CONSTRAINT
: "D" ("kernel stack overflow (page fault)"),
"S" (regs), "d" (address),
[stack] "rm" (stack));
@@ -893,8 +892,7 @@ show_signal_msg(struct pt_regs *regs, unsigned long error_code,
static void
__bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
- unsigned long address, struct vm_area_struct *vma,
- int si_code)
+ unsigned long address, u32 *pkey, int si_code)
{
struct task_struct *tsk = current;
@@ -942,7 +940,7 @@ __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
tsk->thread.error_code = error_code;
tsk->thread.trap_nr = X86_TRAP_PF;
- force_sig_info_fault(SIGSEGV, si_code, address, tsk, vma, 0);
+ force_sig_info_fault(SIGSEGV, si_code, address, tsk, pkey, 0);
return;
}
@@ -955,9 +953,9 @@ __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
static noinline void
bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
- unsigned long address, struct vm_area_struct *vma)
+ unsigned long address, u32 *pkey)
{
- __bad_area_nosemaphore(regs, error_code, address, vma, SEGV_MAPERR);
+ __bad_area_nosemaphore(regs, error_code, address, pkey, SEGV_MAPERR);
}
static void
@@ -965,6 +963,10 @@ __bad_area(struct pt_regs *regs, unsigned long error_code,
unsigned long address, struct vm_area_struct *vma, int si_code)
{
struct mm_struct *mm = current->mm;
+ u32 pkey;
+
+ if (vma)
+ pkey = vma_pkey(vma);
/*
* Something tried to access memory that isn't in our memory map..
@@ -972,7 +974,8 @@ __bad_area(struct pt_regs *regs, unsigned long error_code,
*/
up_read(&mm->mmap_sem);
- __bad_area_nosemaphore(regs, error_code, address, vma, si_code);
+ __bad_area_nosemaphore(regs, error_code, address,
+ (vma) ? &pkey : NULL, si_code);
}
static noinline void
@@ -1015,7 +1018,7 @@ bad_area_access_error(struct pt_regs *regs, unsigned long error_code,
static void
do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
- struct vm_area_struct *vma, unsigned int fault)
+ u32 *pkey, unsigned int fault)
{
struct task_struct *tsk = current;
int code = BUS_ADRERR;
@@ -1042,13 +1045,12 @@ do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
code = BUS_MCEERR_AR;
}
#endif
- force_sig_info_fault(SIGBUS, code, address, tsk, vma, fault);
+ force_sig_info_fault(SIGBUS, code, address, tsk, pkey, fault);
}
static noinline void
mm_fault_error(struct pt_regs *regs, unsigned long error_code,
- unsigned long address, struct vm_area_struct *vma,
- unsigned int fault)
+ unsigned long address, u32 *pkey, unsigned int fault)
{
if (fatal_signal_pending(current) && !(error_code & PF_USER)) {
no_context(regs, error_code, address, 0, 0);
@@ -1072,9 +1074,9 @@ mm_fault_error(struct pt_regs *regs, unsigned long error_code,
} else {
if (fault & (VM_FAULT_SIGBUS|VM_FAULT_HWPOISON|
VM_FAULT_HWPOISON_LARGE))
- do_sigbus(regs, error_code, address, vma, fault);
+ do_sigbus(regs, error_code, address, pkey, fault);
else if (fault & VM_FAULT_SIGSEGV)
- bad_area_nosemaphore(regs, error_code, address, vma);
+ bad_area_nosemaphore(regs, error_code, address, pkey);
else
BUG();
}
@@ -1254,10 +1256,6 @@ static inline bool smap_violation(int error_code, struct pt_regs *regs)
* This routine handles page faults. It determines the address,
* and the problem, and then passes it off to one of the appropriate
* routines.
- *
- * This function must have noinline because both callers
- * {,trace_}do_page_fault() have notrace on. Having this an actual function
- * guarantees there's a function trace entry.
*/
static noinline void
__do_page_fault(struct pt_regs *regs, unsigned long error_code,
@@ -1268,6 +1266,7 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
struct mm_struct *mm;
int fault, major = 0;
unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
+ u32 pkey;
tsk = current;
mm = tsk->mm;
@@ -1468,9 +1467,10 @@ good_area:
return;
}
+ pkey = vma_pkey(vma);
up_read(&mm->mmap_sem);
if (unlikely(fault & VM_FAULT_ERROR)) {
- mm_fault_error(regs, error_code, address, vma, fault);
+ mm_fault_error(regs, error_code, address, &pkey, fault);
return;
}
@@ -1490,27 +1490,6 @@ good_area:
}
NOKPROBE_SYMBOL(__do_page_fault);
-dotraplinkage void notrace
-do_page_fault(struct pt_regs *regs, unsigned long error_code)
-{
- unsigned long address = read_cr2(); /* Get the faulting address */
- enum ctx_state prev_state;
-
- /*
- * We must have this function tagged with __kprobes, notrace and call
- * read_cr2() before calling anything else. To avoid calling any kind
- * of tracing machinery before we've observed the CR2 value.
- *
- * exception_{enter,exit}() contain all sorts of tracepoints.
- */
-
- prev_state = exception_enter();
- __do_page_fault(regs, error_code, address);
- exception_exit(prev_state);
-}
-NOKPROBE_SYMBOL(do_page_fault);
-
-#ifdef CONFIG_TRACING
static nokprobe_inline void
trace_page_fault_entries(unsigned long address, struct pt_regs *regs,
unsigned long error_code)
@@ -1521,22 +1500,24 @@ trace_page_fault_entries(unsigned long address, struct pt_regs *regs,
trace_page_fault_kernel(address, regs, error_code);
}
+/*
+ * We must have this function blacklisted from kprobes, tagged with notrace
+ * and call read_cr2() before calling anything else. To avoid calling any
+ * kind of tracing machinery before we've observed the CR2 value.
+ *
+ * exception_{enter,exit}() contains all sorts of tracepoints.
+ */
dotraplinkage void notrace
-trace_do_page_fault(struct pt_regs *regs, unsigned long error_code)
+do_page_fault(struct pt_regs *regs, unsigned long error_code)
{
- /*
- * The exception_enter and tracepoint processing could
- * trigger another page faults (user space callchain
- * reading) and destroy the original cr2 value, so read
- * the faulting address now.
- */
- unsigned long address = read_cr2();
+ unsigned long address = read_cr2(); /* Get the faulting address */
enum ctx_state prev_state;
prev_state = exception_enter();
- trace_page_fault_entries(address, regs, error_code);
+ if (trace_pagefault_enabled())
+ trace_page_fault_entries(address, regs, error_code);
+
__do_page_fault(regs, error_code, address);
exception_exit(prev_state);
}
-NOKPROBE_SYMBOL(trace_do_page_fault);
-#endif /* CONFIG_TRACING */
+NOKPROBE_SYMBOL(do_page_fault);
diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
deleted file mode 100644
index 456dfdfd2249..000000000000
--- a/arch/x86/mm/gup.c
+++ /dev/null
@@ -1,496 +0,0 @@
-/*
- * Lockless get_user_pages_fast for x86
- *
- * Copyright (C) 2008 Nick Piggin
- * Copyright (C) 2008 Novell Inc.
- */
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/vmstat.h>
-#include <linux/highmem.h>
-#include <linux/swap.h>
-#include <linux/memremap.h>
-
-#include <asm/mmu_context.h>
-#include <asm/pgtable.h>
-
-static inline pte_t gup_get_pte(pte_t *ptep)
-{
-#ifndef CONFIG_X86_PAE
- return READ_ONCE(*ptep);
-#else
- /*
- * With get_user_pages_fast, we walk down the pagetables without taking
- * any locks. For this we would like to load the pointers atomically,
- * but that is not possible (without expensive cmpxchg8b) on PAE. What
- * we do have is the guarantee that a pte will only either go from not
- * present to present, or present to not present or both -- it will not
- * switch to a completely different present page without a TLB flush in
- * between; something that we are blocking by holding interrupts off.
- *
- * Setting ptes from not present to present goes:
- * ptep->pte_high = h;
- * smp_wmb();
- * ptep->pte_low = l;
- *
- * And present to not present goes:
- * ptep->pte_low = 0;
- * smp_wmb();
- * ptep->pte_high = 0;
- *
- * We must ensure here that the load of pte_low sees l iff pte_high
- * sees h. We load pte_high *after* loading pte_low, which ensures we
- * don't see an older value of pte_high. *Then* we recheck pte_low,
- * which ensures that we haven't picked up a changed pte high. We might
- * have got rubbish values from pte_low and pte_high, but we are
- * guaranteed that pte_low will not have the present bit set *unless*
- * it is 'l'. And get_user_pages_fast only operates on present ptes, so
- * we're safe.
- *
- * gup_get_pte should not be used or copied outside gup.c without being
- * very careful -- it does not atomically load the pte or anything that
- * is likely to be useful for you.
- */
- pte_t pte;
-
-retry:
- pte.pte_low = ptep->pte_low;
- smp_rmb();
- pte.pte_high = ptep->pte_high;
- smp_rmb();
- if (unlikely(pte.pte_low != ptep->pte_low))
- goto retry;
-
- return pte;
-#endif
-}
-
-static void undo_dev_pagemap(int *nr, int nr_start, struct page **pages)
-{
- while ((*nr) - nr_start) {
- struct page *page = pages[--(*nr)];
-
- ClearPageReferenced(page);
- put_page(page);
- }
-}
-
-/*
- * 'pteval' can come from a pte, pmd, pud or p4d. We only check
- * _PAGE_PRESENT, _PAGE_USER, and _PAGE_RW in here which are the
- * same value on all 4 types.
- */
-static inline int pte_allows_gup(unsigned long pteval, int write)
-{
- unsigned long need_pte_bits = _PAGE_PRESENT|_PAGE_USER;
-
- if (write)
- need_pte_bits |= _PAGE_RW;
-
- if ((pteval & need_pte_bits) != need_pte_bits)
- return 0;
-
- /* Check memory protection keys permissions. */
- if (!__pkru_allows_pkey(pte_flags_pkey(pteval), write))
- return 0;
-
- return 1;
-}
-
-/*
- * The performance critical leaf functions are made noinline otherwise gcc
- * inlines everything into a single function which results in too much
- * register pressure.
- */
-static noinline int gup_pte_range(pmd_t pmd, unsigned long addr,
- unsigned long end, int write, struct page **pages, int *nr)
-{
- struct dev_pagemap *pgmap = NULL;
- int nr_start = *nr, ret = 0;
- pte_t *ptep, *ptem;
-
- /*
- * Keep the original mapped PTE value (ptem) around since we
- * might increment ptep off the end of the page when finishing
- * our loop iteration.
- */
- ptem = ptep = pte_offset_map(&pmd, addr);
- do {
- pte_t pte = gup_get_pte(ptep);
- struct page *page;
-
- /* Similar to the PMD case, NUMA hinting must take slow path */
- if (pte_protnone(pte))
- break;
-
- if (!pte_allows_gup(pte_val(pte), write))
- break;
-
- if (pte_devmap(pte)) {
- pgmap = get_dev_pagemap(pte_pfn(pte), pgmap);
- if (unlikely(!pgmap)) {
- undo_dev_pagemap(nr, nr_start, pages);
- break;
- }
- } else if (pte_special(pte))
- break;
-
- VM_BUG_ON(!pfn_valid(pte_pfn(pte)));
- page = pte_page(pte);
- get_page(page);
- put_dev_pagemap(pgmap);
- SetPageReferenced(page);
- pages[*nr] = page;
- (*nr)++;
-
- } while (ptep++, addr += PAGE_SIZE, addr != end);
- if (addr == end)
- ret = 1;
- pte_unmap(ptem);
-
- return ret;
-}
-
-static inline void get_head_page_multiple(struct page *page, int nr)
-{
- VM_BUG_ON_PAGE(page != compound_head(page), page);
- VM_BUG_ON_PAGE(page_count(page) == 0, page);
- page_ref_add(page, nr);
- SetPageReferenced(page);
-}
-
-static int __gup_device_huge(unsigned long pfn, unsigned long addr,
- unsigned long end, struct page **pages, int *nr)
-{
- int nr_start = *nr;
- struct dev_pagemap *pgmap = NULL;
-
- do {
- struct page *page = pfn_to_page(pfn);
-
- pgmap = get_dev_pagemap(pfn, pgmap);
- if (unlikely(!pgmap)) {
- undo_dev_pagemap(nr, nr_start, pages);
- return 0;
- }
- SetPageReferenced(page);
- pages[*nr] = page;
- get_page(page);
- put_dev_pagemap(pgmap);
- (*nr)++;
- pfn++;
- } while (addr += PAGE_SIZE, addr != end);
- return 1;
-}
-
-static int __gup_device_huge_pmd(pmd_t pmd, unsigned long addr,
- unsigned long end, struct page **pages, int *nr)
-{
- unsigned long fault_pfn;
-
- fault_pfn = pmd_pfn(pmd) + ((addr & ~PMD_MASK) >> PAGE_SHIFT);
- return __gup_device_huge(fault_pfn, addr, end, pages, nr);
-}
-
-static int __gup_device_huge_pud(pud_t pud, unsigned long addr,
- unsigned long end, struct page **pages, int *nr)
-{
- unsigned long fault_pfn;
-
- fault_pfn = pud_pfn(pud) + ((addr & ~PUD_MASK) >> PAGE_SHIFT);
- return __gup_device_huge(fault_pfn, addr, end, pages, nr);
-}
-
-static noinline int gup_huge_pmd(pmd_t pmd, unsigned long addr,
- unsigned long end, int write, struct page **pages, int *nr)
-{
- struct page *head, *page;
- int refs;
-
- if (!pte_allows_gup(pmd_val(pmd), write))
- return 0;
-
- VM_BUG_ON(!pfn_valid(pmd_pfn(pmd)));
- if (pmd_devmap(pmd))
- return __gup_device_huge_pmd(pmd, addr, end, pages, nr);
-
- /* hugepages are never "special" */
- VM_BUG_ON(pmd_flags(pmd) & _PAGE_SPECIAL);
-
- refs = 0;
- head = pmd_page(pmd);
- page = head + ((addr & ~PMD_MASK) >> PAGE_SHIFT);
- do {
- VM_BUG_ON_PAGE(compound_head(page) != head, page);
- pages[*nr] = page;
- (*nr)++;
- page++;
- refs++;
- } while (addr += PAGE_SIZE, addr != end);
- get_head_page_multiple(head, refs);
-
- return 1;
-}
-
-static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end,
- int write, struct page **pages, int *nr)
-{
- unsigned long next;
- pmd_t *pmdp;
-
- pmdp = pmd_offset(&pud, addr);
- do {
- pmd_t pmd = *pmdp;
-
- next = pmd_addr_end(addr, end);
- if (pmd_none(pmd))
- return 0;
- if (unlikely(pmd_large(pmd) || !pmd_present(pmd))) {
- /*
- * NUMA hinting faults need to be handled in the GUP
- * slowpath for accounting purposes and so that they
- * can be serialised against THP migration.
- */
- if (pmd_protnone(pmd))
- return 0;
- if (!gup_huge_pmd(pmd, addr, next, write, pages, nr))
- return 0;
- } else {
- if (!gup_pte_range(pmd, addr, next, write, pages, nr))
- return 0;
- }
- } while (pmdp++, addr = next, addr != end);
-
- return 1;
-}
-
-static noinline int gup_huge_pud(pud_t pud, unsigned long addr,
- unsigned long end, int write, struct page **pages, int *nr)
-{
- struct page *head, *page;
- int refs;
-
- if (!pte_allows_gup(pud_val(pud), write))
- return 0;
-
- VM_BUG_ON(!pfn_valid(pud_pfn(pud)));
- if (pud_devmap(pud))
- return __gup_device_huge_pud(pud, addr, end, pages, nr);
-
- /* hugepages are never "special" */
- VM_BUG_ON(pud_flags(pud) & _PAGE_SPECIAL);
-
- refs = 0;
- head = pud_page(pud);
- page = head + ((addr & ~PUD_MASK) >> PAGE_SHIFT);
- do {
- VM_BUG_ON_PAGE(compound_head(page) != head, page);
- pages[*nr] = page;
- (*nr)++;
- page++;
- refs++;
- } while (addr += PAGE_SIZE, addr != end);
- get_head_page_multiple(head, refs);
-
- return 1;
-}
-
-static int gup_pud_range(p4d_t p4d, unsigned long addr, unsigned long end,
- int write, struct page **pages, int *nr)
-{
- unsigned long next;
- pud_t *pudp;
-
- pudp = pud_offset(&p4d, addr);
- do {
- pud_t pud = *pudp;
-
- next = pud_addr_end(addr, end);
- if (pud_none(pud))
- return 0;
- if (unlikely(pud_large(pud))) {
- if (!gup_huge_pud(pud, addr, next, write, pages, nr))
- return 0;
- } else {
- if (!gup_pmd_range(pud, addr, next, write, pages, nr))
- return 0;
- }
- } while (pudp++, addr = next, addr != end);
-
- return 1;
-}
-
-static int gup_p4d_range(pgd_t pgd, unsigned long addr, unsigned long end,
- int write, struct page **pages, int *nr)
-{
- unsigned long next;
- p4d_t *p4dp;
-
- p4dp = p4d_offset(&pgd, addr);
- do {
- p4d_t p4d = *p4dp;
-
- next = p4d_addr_end(addr, end);
- if (p4d_none(p4d))
- return 0;
- BUILD_BUG_ON(p4d_large(p4d));
- if (!gup_pud_range(p4d, addr, next, write, pages, nr))
- return 0;
- } while (p4dp++, addr = next, addr != end);
-
- return 1;
-}
-
-/*
- * Like get_user_pages_fast() except its IRQ-safe in that it won't fall
- * back to the regular GUP.
- */
-int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
- struct page **pages)
-{
- struct mm_struct *mm = current->mm;
- unsigned long addr, len, end;
- unsigned long next;
- unsigned long flags;
- pgd_t *pgdp;
- int nr = 0;
-
- start &= PAGE_MASK;
- addr = start;
- len = (unsigned long) nr_pages << PAGE_SHIFT;
- end = start + len;
- if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ,
- (void __user *)start, len)))
- return 0;
-
- /*
- * XXX: batch / limit 'nr', to avoid large irq off latency
- * needs some instrumenting to determine the common sizes used by
- * important workloads (eg. DB2), and whether limiting the batch size
- * will decrease performance.
- *
- * It seems like we're in the clear for the moment. Direct-IO is
- * the main guy that batches up lots of get_user_pages, and even
- * they are limited to 64-at-a-time which is not so many.
- */
- /*
- * This doesn't prevent pagetable teardown, but does prevent
- * the pagetables and pages from being freed on x86.
- *
- * So long as we atomically load page table pointers versus teardown
- * (which we do on x86, with the above PAE exception), we can follow the
- * address down to the the page and take a ref on it.
- */
- local_irq_save(flags);
- pgdp = pgd_offset(mm, addr);
- do {
- pgd_t pgd = *pgdp;
-
- next = pgd_addr_end(addr, end);
- if (pgd_none(pgd))
- break;
- if (!gup_p4d_range(pgd, addr, next, write, pages, &nr))
- break;
- } while (pgdp++, addr = next, addr != end);
- local_irq_restore(flags);
-
- return nr;
-}
-
-/**
- * get_user_pages_fast() - pin user pages in memory
- * @start: starting user address
- * @nr_pages: number of pages from start to pin
- * @write: whether pages will be written to
- * @pages: array that receives pointers to the pages pinned.
- * Should be at least nr_pages long.
- *
- * Attempt to pin user pages in memory without taking mm->mmap_sem.
- * If not successful, it will fall back to taking the lock and
- * calling get_user_pages().
- *
- * Returns number of pages pinned. This may be fewer than the number
- * requested. If nr_pages is 0 or negative, returns 0. If no pages
- * were pinned, returns -errno.
- */
-int get_user_pages_fast(unsigned long start, int nr_pages, int write,
- struct page **pages)
-{
- struct mm_struct *mm = current->mm;
- unsigned long addr, len, end;
- unsigned long next;
- pgd_t *pgdp;
- int nr = 0;
-
- start &= PAGE_MASK;
- addr = start;
- len = (unsigned long) nr_pages << PAGE_SHIFT;
-
- end = start + len;
- if (end < start)
- goto slow_irqon;
-
-#ifdef CONFIG_X86_64
- if (end >> __VIRTUAL_MASK_SHIFT)
- goto slow_irqon;
-#endif
-
- /*
- * XXX: batch / limit 'nr', to avoid large irq off latency
- * needs some instrumenting to determine the common sizes used by
- * important workloads (eg. DB2), and whether limiting the batch size
- * will decrease performance.
- *
- * It seems like we're in the clear for the moment. Direct-IO is
- * the main guy that batches up lots of get_user_pages, and even
- * they are limited to 64-at-a-time which is not so many.
- */
- /*
- * This doesn't prevent pagetable teardown, but does prevent
- * the pagetables and pages from being freed on x86.
- *
- * So long as we atomically load page table pointers versus teardown
- * (which we do on x86, with the above PAE exception), we can follow the
- * address down to the the page and take a ref on it.
- */
- local_irq_disable();
- pgdp = pgd_offset(mm, addr);
- do {
- pgd_t pgd = *pgdp;
-
- next = pgd_addr_end(addr, end);
- if (pgd_none(pgd))
- goto slow;
- if (!gup_p4d_range(pgd, addr, next, write, pages, &nr))
- goto slow;
- } while (pgdp++, addr = next, addr != end);
- local_irq_enable();
-
- VM_BUG_ON(nr != (end - start) >> PAGE_SHIFT);
- return nr;
-
- {
- int ret;
-
-slow:
- local_irq_enable();
-slow_irqon:
- /* Try to get the remaining pages with get_user_pages */
- start += nr << PAGE_SHIFT;
- pages += nr;
-
- ret = get_user_pages_unlocked(start,
- (end - start) >> PAGE_SHIFT,
- pages, write ? FOLL_WRITE : 0);
-
- /* Have to be a bit careful with return values */
- if (nr > 0) {
- if (ret < 0)
- ret = nr;
- else
- ret += nr;
- }
-
- return ret;
- }
-}
diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
index adad702b39cd..6d06cf33e3de 100644
--- a/arch/x86/mm/hugetlbpage.c
+++ b/arch/x86/mm/hugetlbpage.c
@@ -18,6 +18,7 @@
#include <asm/tlbflush.h>
#include <asm/pgalloc.h>
#include <asm/elf.h>
+#include <asm/mpx.h>
#if 0 /* This is just for testing */
struct page *
@@ -33,7 +34,7 @@ follow_huge_addr(struct mm_struct *mm, unsigned long address, int write)
if (!vma || !is_vm_hugetlb_page(vma))
return ERR_PTR(-EINVAL);
- pte = huge_pte_offset(mm, address);
+ pte = huge_pte_offset(mm, address, vma_mmu_pagesize(vma));
/* hugetlb should be locked, and hence, prefaulted */
WARN_ON(!pte || pte_none(*pte));
@@ -85,25 +86,38 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
info.flags = 0;
info.length = len;
info.low_limit = get_mmap_base(1);
+
+ /*
+ * If hint address is above DEFAULT_MAP_WINDOW, look for unmapped area
+ * in the full address space.
+ */
info.high_limit = in_compat_syscall() ?
- tasksize_32bit() : tasksize_64bit();
+ task_size_32bit() : task_size_64bit(addr > DEFAULT_MAP_WINDOW);
+
info.align_mask = PAGE_MASK & ~huge_page_mask(h);
info.align_offset = 0;
return vm_unmapped_area(&info);
}
static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
- unsigned long addr0, unsigned long len,
+ unsigned long addr, unsigned long len,
unsigned long pgoff, unsigned long flags)
{
struct hstate *h = hstate_file(file);
struct vm_unmapped_area_info info;
- unsigned long addr;
info.flags = VM_UNMAPPED_AREA_TOPDOWN;
info.length = len;
info.low_limit = PAGE_SIZE;
info.high_limit = get_mmap_base(0);
+
+ /*
+ * If hint address is above DEFAULT_MAP_WINDOW, look for unmapped area
+ * in the full address space.
+ */
+ if (addr > DEFAULT_MAP_WINDOW && !in_compat_syscall())
+ info.high_limit += TASK_SIZE_MAX - DEFAULT_MAP_WINDOW;
+
info.align_mask = PAGE_MASK & ~huge_page_mask(h);
info.align_offset = 0;
addr = vm_unmapped_area(&info);
@@ -118,7 +132,7 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
VM_BUG_ON(addr != -ENOMEM);
info.flags = 0;
info.low_limit = TASK_UNMAPPED_BASE;
- info.high_limit = TASK_SIZE;
+ info.high_limit = TASK_SIZE_LOW;
addr = vm_unmapped_area(&info);
}
@@ -135,6 +149,11 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
if (len & ~huge_page_mask(h))
return -EINVAL;
+
+ addr = mpx_unmapped_area_check(addr, len, flags);
+ if (IS_ERR_VALUE(addr))
+ return addr;
+
if (len > TASK_SIZE)
return -ENOMEM;
diff --git a/arch/x86/mm/ident_map.c b/arch/x86/mm/ident_map.c
index adab1595f4bd..31cea988fa36 100644
--- a/arch/x86/mm/ident_map.c
+++ b/arch/x86/mm/ident_map.c
@@ -51,7 +51,7 @@ static int ident_pud_init(struct x86_mapping_info *info, pud_t *pud_page,
if (!pmd)
return -ENOMEM;
ident_pmd_init(info, pmd, addr, next);
- set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE));
+ set_pud(pud, __pud(__pa(pmd) | info->kernpg_flag));
}
return 0;
@@ -79,7 +79,7 @@ static int ident_p4d_init(struct x86_mapping_info *info, p4d_t *p4d_page,
if (!pud)
return -ENOMEM;
ident_pud_init(info, pud, addr, next);
- set_p4d(p4d, __p4d(__pa(pud) | _KERNPG_TABLE));
+ set_p4d(p4d, __p4d(__pa(pud) | info->kernpg_flag));
}
return 0;
@@ -93,6 +93,10 @@ int kernel_ident_mapping_init(struct x86_mapping_info *info, pgd_t *pgd_page,
unsigned long next;
int result;
+ /* Set the default pagetable flags if not supplied */
+ if (!info->kernpg_flag)
+ info->kernpg_flag = _KERNPG_TABLE;
+
for (; addr < end; addr = next) {
pgd_t *pgd = pgd_page + pgd_index(addr);
p4d_t *p4d;
@@ -116,14 +120,14 @@ int kernel_ident_mapping_init(struct x86_mapping_info *info, pgd_t *pgd_page,
if (result)
return result;
if (IS_ENABLED(CONFIG_X86_5LEVEL)) {
- set_pgd(pgd, __pgd(__pa(p4d) | _KERNPG_TABLE));
+ set_pgd(pgd, __pgd(__pa(p4d) | info->kernpg_flag));
} else {
/*
* With p4d folded, pgd is equal to p4d.
* The pgd entry has to point to the pud page table in this case.
*/
pud_t *pud = pud_offset(p4d, 0);
- set_pgd(pgd, __pgd(__pa(pud) | _KERNPG_TABLE));
+ set_pgd(pgd, __pgd(__pa(pud) | info->kernpg_flag));
}
}
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 9b3f9fa5b283..af5c1ed21d43 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -18,6 +18,8 @@
#include <asm/dma.h> /* for MAX_DMA_PFN */
#include <asm/microcode.h>
#include <asm/kaslr.h>
+#include <asm/hypervisor.h>
+#include <asm/cpufeature.h>
/*
* We need to define the tracepoints somewhere, and tlb.c
@@ -192,6 +194,38 @@ static void __init probe_page_size_mask(void)
}
}
+static void setup_pcid(void)
+{
+#ifdef CONFIG_X86_64
+ if (boot_cpu_has(X86_FEATURE_PCID)) {
+ if (boot_cpu_has(X86_FEATURE_PGE)) {
+ /*
+ * This can't be cr4_set_bits_and_update_boot() --
+ * the trampoline code can't handle CR4.PCIDE and
+ * it wouldn't do any good anyway. Despite the name,
+ * cr4_set_bits_and_update_boot() doesn't actually
+ * cause the bits in question to remain set all the
+ * way through the secondary boot asm.
+ *
+ * Instead, we brute-force it and set CR4.PCIDE
+ * manually in start_secondary().
+ */
+ cr4_set_bits(X86_CR4_PCIDE);
+ } else {
+ /*
+ * flush_tlb_all(), as currently implemented, won't
+ * work if PCID is on but PGE is not. Since that
+ * combination doesn't exist on real hardware, there's
+ * no reason to try to fully support it, but it's
+ * polite to avoid corrupting data if we're on
+ * an improperly configured VM.
+ */
+ setup_clear_cpu_cap(X86_FEATURE_PCID);
+ }
+ }
+#endif
+}
+
#ifdef CONFIG_X86_32
#define NR_RANGE_MR 3
#else /* CONFIG_X86_64 */
@@ -591,6 +625,7 @@ void __init init_mem_mapping(void)
unsigned long end;
probe_page_size_mask();
+ setup_pcid();
#ifdef CONFIG_X86_64
end = max_pfn << PAGE_SHIFT;
@@ -636,6 +671,8 @@ void __init init_mem_mapping(void)
load_cr3(swapper_pg_dir);
__flush_tlb_all();
+ hypervisor_init_mem_mapping();
+
early_memtest(0, max_pfn_mapped << PAGE_SHIFT);
}
@@ -811,10 +848,8 @@ void __init zone_sizes_init(void)
}
DEFINE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate) = {
-#ifdef CONFIG_SMP
- .active_mm = &init_mm,
- .state = 0,
-#endif
+ .loaded_mm = &init_mm,
+ .next_asid = 1,
.cr4 = ~0UL, /* fail hard if we screw up cr4 shadow initialization */
};
EXPORT_SYMBOL_GPL(cpu_tlbstate);
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 99fb83819a5f..8a64a6f2848d 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -823,15 +823,12 @@ void __init mem_init(void)
}
#ifdef CONFIG_MEMORY_HOTPLUG
-int arch_add_memory(int nid, u64 start, u64 size, bool for_device)
+int arch_add_memory(int nid, u64 start, u64 size, bool want_memblock)
{
- struct pglist_data *pgdata = NODE_DATA(nid);
- struct zone *zone = pgdata->node_zones +
- zone_for_memory(nid, start, size, ZONE_HIGHMEM, for_device);
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;
- return __add_pages(nid, zone, start_pfn, nr_pages);
+ return __add_pages(nid, start_pfn, nr_pages, want_memblock);
}
#ifdef CONFIG_MEMORY_HOTREMOVE
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 0a59daf799f8..048fbe8fc274 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -92,6 +92,44 @@ __setup("noexec32=", nonx32_setup);
* When memory was added make sure all the processes MM have
* suitable PGD entries in the local PGD level page.
*/
+#ifdef CONFIG_X86_5LEVEL
+void sync_global_pgds(unsigned long start, unsigned long end)
+{
+ unsigned long addr;
+
+ for (addr = start; addr <= end; addr = ALIGN(addr + 1, PGDIR_SIZE)) {
+ const pgd_t *pgd_ref = pgd_offset_k(addr);
+ struct page *page;
+
+ /* Check for overflow */
+ if (addr < start)
+ break;
+
+ if (pgd_none(*pgd_ref))
+ continue;
+
+ spin_lock(&pgd_lock);
+ list_for_each_entry(page, &pgd_list, lru) {
+ pgd_t *pgd;
+ spinlock_t *pgt_lock;
+
+ pgd = (pgd_t *)page_address(page) + pgd_index(addr);
+ /* the pgt_lock only for Xen */
+ pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
+ spin_lock(pgt_lock);
+
+ if (!pgd_none(*pgd_ref) && !pgd_none(*pgd))
+ BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
+
+ if (pgd_none(*pgd))
+ set_pgd(pgd, *pgd_ref);
+
+ spin_unlock(pgt_lock);
+ }
+ spin_unlock(&pgd_lock);
+ }
+}
+#else
void sync_global_pgds(unsigned long start, unsigned long end)
{
unsigned long addr;
@@ -135,6 +173,7 @@ void sync_global_pgds(unsigned long start, unsigned long end)
spin_unlock(&pgd_lock);
}
}
+#endif
/*
* NOTE: This function is marked __ref because it calls __init function
@@ -585,6 +624,57 @@ phys_pud_init(pud_t *pud_page, unsigned long paddr, unsigned long paddr_end,
return paddr_last;
}
+static unsigned long __meminit
+phys_p4d_init(p4d_t *p4d_page, unsigned long paddr, unsigned long paddr_end,
+ unsigned long page_size_mask)
+{
+ unsigned long paddr_next, paddr_last = paddr_end;
+ unsigned long vaddr = (unsigned long)__va(paddr);
+ int i = p4d_index(vaddr);
+
+ if (!IS_ENABLED(CONFIG_X86_5LEVEL))
+ return phys_pud_init((pud_t *) p4d_page, paddr, paddr_end, page_size_mask);
+
+ for (; i < PTRS_PER_P4D; i++, paddr = paddr_next) {
+ p4d_t *p4d;
+ pud_t *pud;
+
+ vaddr = (unsigned long)__va(paddr);
+ p4d = p4d_page + p4d_index(vaddr);
+ paddr_next = (paddr & P4D_MASK) + P4D_SIZE;
+
+ if (paddr >= paddr_end) {
+ if (!after_bootmem &&
+ !e820__mapped_any(paddr & P4D_MASK, paddr_next,
+ E820_TYPE_RAM) &&
+ !e820__mapped_any(paddr & P4D_MASK, paddr_next,
+ E820_TYPE_RESERVED_KERN))
+ set_p4d(p4d, __p4d(0));
+ continue;
+ }
+
+ if (!p4d_none(*p4d)) {
+ pud = pud_offset(p4d, 0);
+ paddr_last = phys_pud_init(pud, paddr,
+ paddr_end,
+ page_size_mask);
+ __flush_tlb_all();
+ continue;
+ }
+
+ pud = alloc_low_page();
+ paddr_last = phys_pud_init(pud, paddr, paddr_end,
+ page_size_mask);
+
+ spin_lock(&init_mm.page_table_lock);
+ p4d_populate(&init_mm, p4d, pud);
+ spin_unlock(&init_mm.page_table_lock);
+ }
+ __flush_tlb_all();
+
+ return paddr_last;
+}
+
/*
* Create page table mapping for the physical memory for specific physical
* addresses. The virtual and physical addresses have to be aligned on PMD level
@@ -606,26 +696,26 @@ kernel_physical_mapping_init(unsigned long paddr_start,
for (; vaddr < vaddr_end; vaddr = vaddr_next) {
pgd_t *pgd = pgd_offset_k(vaddr);
p4d_t *p4d;
- pud_t *pud;
vaddr_next = (vaddr & PGDIR_MASK) + PGDIR_SIZE;
- BUILD_BUG_ON(pgd_none(*pgd));
- p4d = p4d_offset(pgd, vaddr);
- if (p4d_val(*p4d)) {
- pud = (pud_t *)p4d_page_vaddr(*p4d);
- paddr_last = phys_pud_init(pud, __pa(vaddr),
+ if (pgd_val(*pgd)) {
+ p4d = (p4d_t *)pgd_page_vaddr(*pgd);
+ paddr_last = phys_p4d_init(p4d, __pa(vaddr),
__pa(vaddr_end),
page_size_mask);
continue;
}
- pud = alloc_low_page();
- paddr_last = phys_pud_init(pud, __pa(vaddr), __pa(vaddr_end),
+ p4d = alloc_low_page();
+ paddr_last = phys_p4d_init(p4d, __pa(vaddr), __pa(vaddr_end),
page_size_mask);
spin_lock(&init_mm.page_table_lock);
- p4d_populate(&init_mm, p4d, pud);
+ if (IS_ENABLED(CONFIG_X86_5LEVEL))
+ pgd_populate(&init_mm, pgd, p4d);
+ else
+ p4d_populate(&init_mm, p4d_offset(pgd, vaddr), (pud_t *) p4d);
spin_unlock(&init_mm.page_table_lock);
pgd_changed = true;
}
@@ -671,7 +761,7 @@ void __init paging_init(void)
* After memory hotplug the variables max_pfn, max_low_pfn and high_memory need
* updating.
*/
-static void update_end_of_memory_vars(u64 start, u64 size)
+static void update_end_of_memory_vars(u64 start, u64 size)
{
unsigned long end_pfn = PFN_UP(start + size);
@@ -682,29 +772,30 @@ static void update_end_of_memory_vars(u64 start, u64 size)
}
}
-/*
- * Memory is added always to NORMAL zone. This means you will never get
- * additional DMA/DMA32 memory.
- */
-int arch_add_memory(int nid, u64 start, u64 size, bool for_device)
+int add_pages(int nid, unsigned long start_pfn,
+ unsigned long nr_pages, bool want_memblock)
{
- struct pglist_data *pgdat = NODE_DATA(nid);
- struct zone *zone = pgdat->node_zones +
- zone_for_memory(nid, start, size, ZONE_NORMAL, for_device);
- unsigned long start_pfn = start >> PAGE_SHIFT;
- unsigned long nr_pages = size >> PAGE_SHIFT;
int ret;
- init_memory_mapping(start, start + size);
-
- ret = __add_pages(nid, zone, start_pfn, nr_pages);
+ ret = __add_pages(nid, start_pfn, nr_pages, want_memblock);
WARN_ON_ONCE(ret);
/* update max_pfn, max_low_pfn and high_memory */
- update_end_of_memory_vars(start, size);
+ update_end_of_memory_vars(start_pfn << PAGE_SHIFT,
+ nr_pages << PAGE_SHIFT);
return ret;
}
+
+int arch_add_memory(int nid, u64 start, u64 size, bool want_memblock)
+{
+ unsigned long start_pfn = start >> PAGE_SHIFT;
+ unsigned long nr_pages = size >> PAGE_SHIFT;
+
+ init_memory_mapping(start, start + size);
+
+ return add_pages(nid, start_pfn, nr_pages, want_memblock);
+}
EXPORT_SYMBOL_GPL(arch_add_memory);
#define PAGE_INUSE 0xFD
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index bbc558b88a88..34f0e1847dd6 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -13,6 +13,8 @@
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/mmiotrace.h>
+#include <linux/mem_encrypt.h>
+#include <linux/efi.h>
#include <asm/set_memory.h>
#include <asm/e820/api.h>
@@ -21,6 +23,7 @@
#include <asm/tlbflush.h>
#include <asm/pgalloc.h>
#include <asm/pat.h>
+#include <asm/setup.h>
#include "physaddr.h"
@@ -106,12 +109,6 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
}
/*
- * Don't remap the low PCI/ISA area, it's always mapped..
- */
- if (is_ISA_range(phys_addr, last_addr))
- return (__force void __iomem *)phys_to_virt(phys_addr);
-
- /*
* Don't allow anybody to remap normal RAM that we're using..
*/
pfn = phys_addr >> PAGE_SHIFT;
@@ -340,13 +337,17 @@ void iounmap(volatile void __iomem *addr)
return;
/*
- * __ioremap special-cases the PCI/ISA range by not instantiating a
- * vm_area and by simply returning an address into the kernel mapping
- * of ISA space. So handle that here.
+ * The PCI/ISA range special-casing was removed from __ioremap()
+ * so this check, in theory, can be removed. However, there are
+ * cases where iounmap() is called for addresses not obtained via
+ * ioremap() (vga16fb for example). Add a warning so that these
+ * cases can be caught and fixed.
*/
if ((void __force *)addr >= phys_to_virt(ISA_START_ADDRESS) &&
- (void __force *)addr < phys_to_virt(ISA_END_ADDRESS))
+ (void __force *)addr < phys_to_virt(ISA_END_ADDRESS)) {
+ WARN(1, "iounmap() called for ISA range not obtained using ioremap()\n");
return;
+ }
addr = (volatile void __iomem *)
(PAGE_MASK & (unsigned long __force)addr);
@@ -399,12 +400,10 @@ void *xlate_dev_mem_ptr(phys_addr_t phys)
unsigned long offset = phys & ~PAGE_MASK;
void *vaddr;
- /* If page is RAM, we can use __va. Otherwise ioremap and unmap. */
- if (page_is_ram(start >> PAGE_SHIFT))
- return __va(phys);
+ /* memremap() maps if RAM, otherwise falls back to ioremap() */
+ vaddr = memremap(start, PAGE_SIZE, MEMREMAP_WB);
- vaddr = ioremap_cache(start, PAGE_SIZE);
- /* Only add the offset on success and return NULL if the ioremap() failed: */
+ /* Only add the offset on success and return NULL if memremap() failed */
if (vaddr)
vaddr += offset;
@@ -413,18 +412,270 @@ void *xlate_dev_mem_ptr(phys_addr_t phys)
void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr)
{
- if (page_is_ram(phys >> PAGE_SHIFT))
- return;
+ memunmap((void *)((unsigned long)addr & PAGE_MASK));
+}
+
+/*
+ * Examine the physical address to determine if it is an area of memory
+ * that should be mapped decrypted. If the memory is not part of the
+ * kernel usable area it was accessed and created decrypted, so these
+ * areas should be mapped decrypted. And since the encryption key can
+ * change across reboots, persistent memory should also be mapped
+ * decrypted.
+ */
+static bool memremap_should_map_decrypted(resource_size_t phys_addr,
+ unsigned long size)
+{
+ int is_pmem;
+
+ /*
+ * Check if the address is part of a persistent memory region.
+ * This check covers areas added by E820, EFI and ACPI.
+ */
+ is_pmem = region_intersects(phys_addr, size, IORESOURCE_MEM,
+ IORES_DESC_PERSISTENT_MEMORY);
+ if (is_pmem != REGION_DISJOINT)
+ return true;
+
+ /*
+ * Check if the non-volatile attribute is set for an EFI
+ * reserved area.
+ */
+ if (efi_enabled(EFI_BOOT)) {
+ switch (efi_mem_type(phys_addr)) {
+ case EFI_RESERVED_TYPE:
+ if (efi_mem_attributes(phys_addr) & EFI_MEMORY_NV)
+ return true;
+ break;
+ default:
+ break;
+ }
+ }
+
+ /* Check if the address is outside kernel usable area */
+ switch (e820__get_entry_type(phys_addr, phys_addr + size - 1)) {
+ case E820_TYPE_RESERVED:
+ case E820_TYPE_ACPI:
+ case E820_TYPE_NVS:
+ case E820_TYPE_UNUSABLE:
+ case E820_TYPE_PRAM:
+ return true;
+ default:
+ break;
+ }
+
+ return false;
+}
+
+/*
+ * Examine the physical address to determine if it is EFI data. Check
+ * it against the boot params structure and EFI tables and memory types.
+ */
+static bool memremap_is_efi_data(resource_size_t phys_addr,
+ unsigned long size)
+{
+ u64 paddr;
+
+ /* Check if the address is part of EFI boot/runtime data */
+ if (!efi_enabled(EFI_BOOT))
+ return false;
+
+ paddr = boot_params.efi_info.efi_memmap_hi;
+ paddr <<= 32;
+ paddr |= boot_params.efi_info.efi_memmap;
+ if (phys_addr == paddr)
+ return true;
+
+ paddr = boot_params.efi_info.efi_systab_hi;
+ paddr <<= 32;
+ paddr |= boot_params.efi_info.efi_systab;
+ if (phys_addr == paddr)
+ return true;
+
+ if (efi_is_table_address(phys_addr))
+ return true;
+
+ switch (efi_mem_type(phys_addr)) {
+ case EFI_BOOT_SERVICES_DATA:
+ case EFI_RUNTIME_SERVICES_DATA:
+ return true;
+ default:
+ break;
+ }
+
+ return false;
+}
+
+/*
+ * Examine the physical address to determine if it is boot data by checking
+ * it against the boot params setup_data chain.
+ */
+static bool memremap_is_setup_data(resource_size_t phys_addr,
+ unsigned long size)
+{
+ struct setup_data *data;
+ u64 paddr, paddr_next;
+
+ paddr = boot_params.hdr.setup_data;
+ while (paddr) {
+ unsigned int len;
+
+ if (phys_addr == paddr)
+ return true;
+
+ data = memremap(paddr, sizeof(*data),
+ MEMREMAP_WB | MEMREMAP_DEC);
+
+ paddr_next = data->next;
+ len = data->len;
+
+ memunmap(data);
+
+ if ((phys_addr > paddr) && (phys_addr < (paddr + len)))
+ return true;
+
+ paddr = paddr_next;
+ }
+
+ return false;
+}
+
+/*
+ * Examine the physical address to determine if it is boot data by checking
+ * it against the boot params setup_data chain (early boot version).
+ */
+static bool __init early_memremap_is_setup_data(resource_size_t phys_addr,
+ unsigned long size)
+{
+ struct setup_data *data;
+ u64 paddr, paddr_next;
+
+ paddr = boot_params.hdr.setup_data;
+ while (paddr) {
+ unsigned int len;
+
+ if (phys_addr == paddr)
+ return true;
+
+ data = early_memremap_decrypted(paddr, sizeof(*data));
+
+ paddr_next = data->next;
+ len = data->len;
+
+ early_memunmap(data, sizeof(*data));
+
+ if ((phys_addr > paddr) && (phys_addr < (paddr + len)))
+ return true;
+
+ paddr = paddr_next;
+ }
+
+ return false;
+}
+
+/*
+ * Architecture function to determine if RAM remap is allowed. By default, a
+ * RAM remap will map the data as encrypted. Determine if a RAM remap should
+ * not be done so that the data will be mapped decrypted.
+ */
+bool arch_memremap_can_ram_remap(resource_size_t phys_addr, unsigned long size,
+ unsigned long flags)
+{
+ if (!sme_active())
+ return true;
+
+ if (flags & MEMREMAP_ENC)
+ return true;
+
+ if (flags & MEMREMAP_DEC)
+ return false;
+
+ if (memremap_is_setup_data(phys_addr, size) ||
+ memremap_is_efi_data(phys_addr, size) ||
+ memremap_should_map_decrypted(phys_addr, size))
+ return false;
+
+ return true;
+}
+
+/*
+ * Architecture override of __weak function to adjust the protection attributes
+ * used when remapping memory. By default, early_memremap() will map the data
+ * as encrypted. Determine if an encrypted mapping should not be done and set
+ * the appropriate protection attributes.
+ */
+pgprot_t __init early_memremap_pgprot_adjust(resource_size_t phys_addr,
+ unsigned long size,
+ pgprot_t prot)
+{
+ if (!sme_active())
+ return prot;
+
+ if (early_memremap_is_setup_data(phys_addr, size) ||
+ memremap_is_efi_data(phys_addr, size) ||
+ memremap_should_map_decrypted(phys_addr, size))
+ prot = pgprot_decrypted(prot);
+ else
+ prot = pgprot_encrypted(prot);
+
+ return prot;
+}
+
+bool phys_mem_access_encrypted(unsigned long phys_addr, unsigned long size)
+{
+ return arch_memremap_can_ram_remap(phys_addr, size, 0);
+}
+
+#ifdef CONFIG_ARCH_USE_MEMREMAP_PROT
+/* Remap memory with encryption */
+void __init *early_memremap_encrypted(resource_size_t phys_addr,
+ unsigned long size)
+{
+ return early_memremap_prot(phys_addr, size, __PAGE_KERNEL_ENC);
+}
+
+/*
+ * Remap memory with encryption and write-protected - cannot be called
+ * before pat_init() is called
+ */
+void __init *early_memremap_encrypted_wp(resource_size_t phys_addr,
+ unsigned long size)
+{
+ /* Be sure the write-protect PAT entry is set for write-protect */
+ if (__pte2cachemode_tbl[_PAGE_CACHE_MODE_WP] != _PAGE_CACHE_MODE_WP)
+ return NULL;
+
+ return early_memremap_prot(phys_addr, size, __PAGE_KERNEL_ENC_WP);
+}
+
+/* Remap memory without encryption */
+void __init *early_memremap_decrypted(resource_size_t phys_addr,
+ unsigned long size)
+{
+ return early_memremap_prot(phys_addr, size, __PAGE_KERNEL_NOENC);
+}
+
+/*
+ * Remap memory without encryption and write-protected - cannot be called
+ * before pat_init() is called
+ */
+void __init *early_memremap_decrypted_wp(resource_size_t phys_addr,
+ unsigned long size)
+{
+ /* Be sure the write-protect PAT entry is set for write-protect */
+ if (__pte2cachemode_tbl[_PAGE_CACHE_MODE_WP] != _PAGE_CACHE_MODE_WP)
+ return NULL;
- iounmap((void __iomem *)((unsigned long)addr & PAGE_MASK));
+ return early_memremap_prot(phys_addr, size, __PAGE_KERNEL_NOENC_WP);
}
+#endif /* CONFIG_ARCH_USE_MEMREMAP_PROT */
static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss;
static inline pmd_t * __init early_ioremap_pmd(unsigned long addr)
{
/* Don't assume we're using swapper_pg_dir at this point */
- pgd_t *base = __va(read_cr3());
+ pgd_t *base = __va(read_cr3_pa());
pgd_t *pgd = &base[pgd_index(addr)];
p4d_t *p4d = p4d_offset(pgd, addr);
pud_t *pud = pud_offset(p4d, addr);
diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c
index 0c7d8129bed6..bc84b73684b7 100644
--- a/arch/x86/mm/kasan_init_64.c
+++ b/arch/x86/mm/kasan_init_64.c
@@ -11,8 +11,8 @@
#include <asm/e820/types.h>
#include <asm/tlbflush.h>
#include <asm/sections.h>
+#include <asm/pgtable.h>
-extern pgd_t early_level4_pgt[PTRS_PER_PGD];
extern struct range pfn_mapped[E820_MAX_ENTRIES];
static int __init map_range(struct range *range)
@@ -23,12 +23,7 @@ static int __init map_range(struct range *range)
start = (unsigned long)kasan_mem_to_shadow(pfn_to_kaddr(range->start));
end = (unsigned long)kasan_mem_to_shadow(pfn_to_kaddr(range->end));
- /*
- * end + 1 here is intentional. We check several shadow bytes in advance
- * to slightly speed up fastpath. In some rare cases we could cross
- * boundary of mapped shadow, so we just map some more here.
- */
- return vmemmap_populate(start, end + 1, NUMA_NO_NODE);
+ return vmemmap_populate(start, end, NUMA_NO_NODE);
}
static void __init clear_pgds(unsigned long start,
@@ -92,7 +87,7 @@ static struct notifier_block kasan_die_notifier = {
void __init kasan_early_init(void)
{
int i;
- pteval_t pte_val = __pa_nodebug(kasan_zero_page) | __PAGE_KERNEL;
+ pteval_t pte_val = __pa_nodebug(kasan_zero_page) | __PAGE_KERNEL | _PAGE_ENC;
pmdval_t pmd_val = __pa_nodebug(kasan_zero_pte) | _KERNPG_TABLE;
pudval_t pud_val = __pa_nodebug(kasan_zero_pmd) | _KERNPG_TABLE;
p4dval_t p4d_val = __pa_nodebug(kasan_zero_pud) | _KERNPG_TABLE;
@@ -109,8 +104,8 @@ void __init kasan_early_init(void)
for (i = 0; CONFIG_PGTABLE_LEVELS >= 5 && i < PTRS_PER_P4D; i++)
kasan_zero_p4d[i] = __p4d(p4d_val);
- kasan_map_early_shadow(early_level4_pgt);
- kasan_map_early_shadow(init_level4_pgt);
+ kasan_map_early_shadow(early_top_pgt);
+ kasan_map_early_shadow(init_top_pgt);
}
void __init kasan_init(void)
@@ -121,8 +116,8 @@ void __init kasan_init(void)
register_die_notifier(&kasan_die_notifier);
#endif
- memcpy(early_level4_pgt, init_level4_pgt, sizeof(early_level4_pgt));
- load_cr3(early_level4_pgt);
+ memcpy(early_top_pgt, init_top_pgt, sizeof(early_top_pgt));
+ load_cr3(early_top_pgt);
__flush_tlb_all();
clear_pgds(KASAN_SHADOW_START, KASAN_SHADOW_END);
@@ -148,7 +143,7 @@ void __init kasan_init(void)
kasan_populate_zero_shadow(kasan_mem_to_shadow((void *)MODULES_END),
(void *)KASAN_SHADOW_END);
- load_cr3(init_level4_pgt);
+ load_cr3(init_top_pgt);
__flush_tlb_all();
/*
@@ -158,7 +153,7 @@ void __init kasan_init(void)
*/
memset(kasan_zero_page, 0, PAGE_SIZE);
for (i = 0; i < PTRS_PER_PTE; i++) {
- pte_t pte = __pte(__pa(kasan_zero_page) | __PAGE_KERNEL_RO);
+ pte_t pte = __pte(__pa(kasan_zero_page) | __PAGE_KERNEL_RO | _PAGE_ENC);
set_pte(&kasan_zero_pte[i], pte);
}
/* Flush TLBs again to be sure that write protection applied. */
diff --git a/arch/x86/mm/kaslr.c b/arch/x86/mm/kaslr.c
index aed206475aa7..af599167fe3c 100644
--- a/arch/x86/mm/kaslr.c
+++ b/arch/x86/mm/kaslr.c
@@ -6,12 +6,12 @@
*
* Entropy is generated using the KASLR early boot functions now shared in
* the lib directory (originally written by Kees Cook). Randomization is
- * done on PGD & PUD page table levels to increase possible addresses. The
- * physical memory mapping code was adapted to support PUD level virtual
- * addresses. This implementation on the best configuration provides 30,000
- * possible virtual addresses in average for each memory region. An additional
- * low memory page is used to ensure each CPU can start with a PGD aligned
- * virtual address (for realmode).
+ * done on PGD & P4D/PUD page table levels to increase possible addresses.
+ * The physical memory mapping code was adapted to support P4D/PUD level
+ * virtual addresses. This implementation on the best configuration provides
+ * 30,000 possible virtual addresses in average for each memory region.
+ * An additional low memory page is used to ensure each CPU can start with
+ * a PGD aligned virtual address (for realmode).
*
* The order of each memory region is not changed. The feature looks at
* the available space for the regions based on different configuration
@@ -70,7 +70,7 @@ static __initdata struct kaslr_memory_region {
unsigned long *base;
unsigned long size_tb;
} kaslr_regions[] = {
- { &page_offset_base, 64/* Maximum */ },
+ { &page_offset_base, 1 << (__PHYSICAL_MASK_SHIFT - TB_SHIFT) /* Maximum */ },
{ &vmalloc_base, VMALLOC_SIZE_TB },
{ &vmemmap_base, 1 },
};
@@ -142,7 +142,10 @@ void __init kernel_randomize_memory(void)
*/
entropy = remain_entropy / (ARRAY_SIZE(kaslr_regions) - i);
prandom_bytes_state(&rand_state, &rand, sizeof(rand));
- entropy = (rand % (entropy + 1)) & PUD_MASK;
+ if (IS_ENABLED(CONFIG_X86_5LEVEL))
+ entropy = (rand % (entropy + 1)) & P4D_MASK;
+ else
+ entropy = (rand % (entropy + 1)) & PUD_MASK;
vaddr += entropy;
*kaslr_regions[i].base = vaddr;
@@ -151,27 +154,21 @@ void __init kernel_randomize_memory(void)
* randomization alignment.
*/
vaddr += get_padding(&kaslr_regions[i]);
- vaddr = round_up(vaddr + 1, PUD_SIZE);
+ if (IS_ENABLED(CONFIG_X86_5LEVEL))
+ vaddr = round_up(vaddr + 1, P4D_SIZE);
+ else
+ vaddr = round_up(vaddr + 1, PUD_SIZE);
remain_entropy -= entropy;
}
}
-/*
- * Create PGD aligned trampoline table to allow real mode initialization
- * of additional CPUs. Consume only 1 low memory page.
- */
-void __meminit init_trampoline(void)
+static void __meminit init_trampoline_pud(void)
{
unsigned long paddr, paddr_next;
pgd_t *pgd;
pud_t *pud_page, *pud_page_tramp;
int i;
- if (!kaslr_memory_enabled()) {
- init_trampoline_default();
- return;
- }
-
pud_page_tramp = alloc_low_page();
paddr = 0;
@@ -192,3 +189,49 @@ void __meminit init_trampoline(void)
set_pgd(&trampoline_pgd_entry,
__pgd(_KERNPG_TABLE | __pa(pud_page_tramp)));
}
+
+static void __meminit init_trampoline_p4d(void)
+{
+ unsigned long paddr, paddr_next;
+ pgd_t *pgd;
+ p4d_t *p4d_page, *p4d_page_tramp;
+ int i;
+
+ p4d_page_tramp = alloc_low_page();
+
+ paddr = 0;
+ pgd = pgd_offset_k((unsigned long)__va(paddr));
+ p4d_page = (p4d_t *) pgd_page_vaddr(*pgd);
+
+ for (i = p4d_index(paddr); i < PTRS_PER_P4D; i++, paddr = paddr_next) {
+ p4d_t *p4d, *p4d_tramp;
+ unsigned long vaddr = (unsigned long)__va(paddr);
+
+ p4d_tramp = p4d_page_tramp + p4d_index(paddr);
+ p4d = p4d_page + p4d_index(vaddr);
+ paddr_next = (paddr & P4D_MASK) + P4D_SIZE;
+
+ *p4d_tramp = *p4d;
+ }
+
+ set_pgd(&trampoline_pgd_entry,
+ __pgd(_KERNPG_TABLE | __pa(p4d_page_tramp)));
+}
+
+/*
+ * Create PGD aligned trampoline table to allow real mode initialization
+ * of additional CPUs. Consume only 1 low memory page.
+ */
+void __meminit init_trampoline(void)
+{
+
+ if (!kaslr_memory_enabled()) {
+ init_trampoline_default();
+ return;
+ }
+
+ if (IS_ENABLED(CONFIG_X86_5LEVEL))
+ init_trampoline_p4d();
+ else
+ init_trampoline_pud();
+}
diff --git a/arch/x86/mm/mem_encrypt.c b/arch/x86/mm/mem_encrypt.c
new file mode 100644
index 000000000000..16c5f37933a2
--- /dev/null
+++ b/arch/x86/mm/mem_encrypt.c
@@ -0,0 +1,595 @@
+/*
+ * AMD Memory Encryption Support
+ *
+ * Copyright (C) 2016 Advanced Micro Devices, Inc.
+ *
+ * Author: Tom Lendacky <thomas.lendacky@amd.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#define DISABLE_BRANCH_PROFILING
+
+#include <linux/linkage.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/dma-mapping.h>
+#include <linux/swiotlb.h>
+#include <linux/mem_encrypt.h>
+
+#include <asm/tlbflush.h>
+#include <asm/fixmap.h>
+#include <asm/setup.h>
+#include <asm/bootparam.h>
+#include <asm/set_memory.h>
+#include <asm/cacheflush.h>
+#include <asm/sections.h>
+#include <asm/processor-flags.h>
+#include <asm/msr.h>
+#include <asm/cmdline.h>
+
+static char sme_cmdline_arg[] __initdata = "mem_encrypt";
+static char sme_cmdline_on[] __initdata = "on";
+static char sme_cmdline_off[] __initdata = "off";
+
+/*
+ * Since SME related variables are set early in the boot process they must
+ * reside in the .data section so as not to be zeroed out when the .bss
+ * section is later cleared.
+ */
+u64 sme_me_mask __section(.data) = 0;
+EXPORT_SYMBOL_GPL(sme_me_mask);
+
+/* Buffer used for early in-place encryption by BSP, no locking needed */
+static char sme_early_buffer[PAGE_SIZE] __aligned(PAGE_SIZE);
+
+/*
+ * This routine does not change the underlying encryption setting of the
+ * page(s) that map this memory. It assumes that eventually the memory is
+ * meant to be accessed as either encrypted or decrypted but the contents
+ * are currently not in the desired state.
+ *
+ * This routine follows the steps outlined in the AMD64 Architecture
+ * Programmer's Manual Volume 2, Section 7.10.8 Encrypt-in-Place.
+ */
+static void __init __sme_early_enc_dec(resource_size_t paddr,
+ unsigned long size, bool enc)
+{
+ void *src, *dst;
+ size_t len;
+
+ if (!sme_me_mask)
+ return;
+
+ local_flush_tlb();
+ wbinvd();
+
+ /*
+ * There are limited number of early mapping slots, so map (at most)
+ * one page at time.
+ */
+ while (size) {
+ len = min_t(size_t, sizeof(sme_early_buffer), size);
+
+ /*
+ * Create mappings for the current and desired format of
+ * the memory. Use a write-protected mapping for the source.
+ */
+ src = enc ? early_memremap_decrypted_wp(paddr, len) :
+ early_memremap_encrypted_wp(paddr, len);
+
+ dst = enc ? early_memremap_encrypted(paddr, len) :
+ early_memremap_decrypted(paddr, len);
+
+ /*
+ * If a mapping can't be obtained to perform the operation,
+ * then eventual access of that area in the desired mode
+ * will cause a crash.
+ */
+ BUG_ON(!src || !dst);
+
+ /*
+ * Use a temporary buffer, of cache-line multiple size, to
+ * avoid data corruption as documented in the APM.
+ */
+ memcpy(sme_early_buffer, src, len);
+ memcpy(dst, sme_early_buffer, len);
+
+ early_memunmap(dst, len);
+ early_memunmap(src, len);
+
+ paddr += len;
+ size -= len;
+ }
+}
+
+void __init sme_early_encrypt(resource_size_t paddr, unsigned long size)
+{
+ __sme_early_enc_dec(paddr, size, true);
+}
+
+void __init sme_early_decrypt(resource_size_t paddr, unsigned long size)
+{
+ __sme_early_enc_dec(paddr, size, false);
+}
+
+static void __init __sme_early_map_unmap_mem(void *vaddr, unsigned long size,
+ bool map)
+{
+ unsigned long paddr = (unsigned long)vaddr - __PAGE_OFFSET;
+ pmdval_t pmd_flags, pmd;
+
+ /* Use early_pmd_flags but remove the encryption mask */
+ pmd_flags = __sme_clr(early_pmd_flags);
+
+ do {
+ pmd = map ? (paddr & PMD_MASK) + pmd_flags : 0;
+ __early_make_pgtable((unsigned long)vaddr, pmd);
+
+ vaddr += PMD_SIZE;
+ paddr += PMD_SIZE;
+ size = (size <= PMD_SIZE) ? 0 : size - PMD_SIZE;
+ } while (size);
+
+ __native_flush_tlb();
+}
+
+void __init sme_unmap_bootdata(char *real_mode_data)
+{
+ struct boot_params *boot_data;
+ unsigned long cmdline_paddr;
+
+ if (!sme_active())
+ return;
+
+ /* Get the command line address before unmapping the real_mode_data */
+ boot_data = (struct boot_params *)real_mode_data;
+ cmdline_paddr = boot_data->hdr.cmd_line_ptr | ((u64)boot_data->ext_cmd_line_ptr << 32);
+
+ __sme_early_map_unmap_mem(real_mode_data, sizeof(boot_params), false);
+
+ if (!cmdline_paddr)
+ return;
+
+ __sme_early_map_unmap_mem(__va(cmdline_paddr), COMMAND_LINE_SIZE, false);
+}
+
+void __init sme_map_bootdata(char *real_mode_data)
+{
+ struct boot_params *boot_data;
+ unsigned long cmdline_paddr;
+
+ if (!sme_active())
+ return;
+
+ __sme_early_map_unmap_mem(real_mode_data, sizeof(boot_params), true);
+
+ /* Get the command line address after mapping the real_mode_data */
+ boot_data = (struct boot_params *)real_mode_data;
+ cmdline_paddr = boot_data->hdr.cmd_line_ptr | ((u64)boot_data->ext_cmd_line_ptr << 32);
+
+ if (!cmdline_paddr)
+ return;
+
+ __sme_early_map_unmap_mem(__va(cmdline_paddr), COMMAND_LINE_SIZE, true);
+}
+
+void __init sme_early_init(void)
+{
+ unsigned int i;
+
+ if (!sme_me_mask)
+ return;
+
+ early_pmd_flags = __sme_set(early_pmd_flags);
+
+ __supported_pte_mask = __sme_set(__supported_pte_mask);
+
+ /* Update the protection map with memory encryption mask */
+ for (i = 0; i < ARRAY_SIZE(protection_map); i++)
+ protection_map[i] = pgprot_encrypted(protection_map[i]);
+}
+
+/* Architecture __weak replacement functions */
+void __init mem_encrypt_init(void)
+{
+ if (!sme_me_mask)
+ return;
+
+ /* Call into SWIOTLB to update the SWIOTLB DMA buffers */
+ swiotlb_update_mem_attributes();
+
+ pr_info("AMD Secure Memory Encryption (SME) active\n");
+}
+
+void swiotlb_set_mem_attributes(void *vaddr, unsigned long size)
+{
+ WARN(PAGE_ALIGN(size) != size,
+ "size is not page-aligned (%#lx)\n", size);
+
+ /* Make the SWIOTLB buffer area decrypted */
+ set_memory_decrypted((unsigned long)vaddr, size >> PAGE_SHIFT);
+}
+
+static void __init sme_clear_pgd(pgd_t *pgd_base, unsigned long start,
+ unsigned long end)
+{
+ unsigned long pgd_start, pgd_end, pgd_size;
+ pgd_t *pgd_p;
+
+ pgd_start = start & PGDIR_MASK;
+ pgd_end = end & PGDIR_MASK;
+
+ pgd_size = (((pgd_end - pgd_start) / PGDIR_SIZE) + 1);
+ pgd_size *= sizeof(pgd_t);
+
+ pgd_p = pgd_base + pgd_index(start);
+
+ memset(pgd_p, 0, pgd_size);
+}
+
+#define PGD_FLAGS _KERNPG_TABLE_NOENC
+#define P4D_FLAGS _KERNPG_TABLE_NOENC
+#define PUD_FLAGS _KERNPG_TABLE_NOENC
+#define PMD_FLAGS (__PAGE_KERNEL_LARGE_EXEC & ~_PAGE_GLOBAL)
+
+static void __init *sme_populate_pgd(pgd_t *pgd_base, void *pgtable_area,
+ unsigned long vaddr, pmdval_t pmd_val)
+{
+ pgd_t *pgd_p;
+ p4d_t *p4d_p;
+ pud_t *pud_p;
+ pmd_t *pmd_p;
+
+ pgd_p = pgd_base + pgd_index(vaddr);
+ if (native_pgd_val(*pgd_p)) {
+ if (IS_ENABLED(CONFIG_X86_5LEVEL))
+ p4d_p = (p4d_t *)(native_pgd_val(*pgd_p) & ~PTE_FLAGS_MASK);
+ else
+ pud_p = (pud_t *)(native_pgd_val(*pgd_p) & ~PTE_FLAGS_MASK);
+ } else {
+ pgd_t pgd;
+
+ if (IS_ENABLED(CONFIG_X86_5LEVEL)) {
+ p4d_p = pgtable_area;
+ memset(p4d_p, 0, sizeof(*p4d_p) * PTRS_PER_P4D);
+ pgtable_area += sizeof(*p4d_p) * PTRS_PER_P4D;
+
+ pgd = native_make_pgd((pgdval_t)p4d_p + PGD_FLAGS);
+ } else {
+ pud_p = pgtable_area;
+ memset(pud_p, 0, sizeof(*pud_p) * PTRS_PER_PUD);
+ pgtable_area += sizeof(*pud_p) * PTRS_PER_PUD;
+
+ pgd = native_make_pgd((pgdval_t)pud_p + PGD_FLAGS);
+ }
+ native_set_pgd(pgd_p, pgd);
+ }
+
+ if (IS_ENABLED(CONFIG_X86_5LEVEL)) {
+ p4d_p += p4d_index(vaddr);
+ if (native_p4d_val(*p4d_p)) {
+ pud_p = (pud_t *)(native_p4d_val(*p4d_p) & ~PTE_FLAGS_MASK);
+ } else {
+ p4d_t p4d;
+
+ pud_p = pgtable_area;
+ memset(pud_p, 0, sizeof(*pud_p) * PTRS_PER_PUD);
+ pgtable_area += sizeof(*pud_p) * PTRS_PER_PUD;
+
+ p4d = native_make_p4d((pudval_t)pud_p + P4D_FLAGS);
+ native_set_p4d(p4d_p, p4d);
+ }
+ }
+
+ pud_p += pud_index(vaddr);
+ if (native_pud_val(*pud_p)) {
+ if (native_pud_val(*pud_p) & _PAGE_PSE)
+ goto out;
+
+ pmd_p = (pmd_t *)(native_pud_val(*pud_p) & ~PTE_FLAGS_MASK);
+ } else {
+ pud_t pud;
+
+ pmd_p = pgtable_area;
+ memset(pmd_p, 0, sizeof(*pmd_p) * PTRS_PER_PMD);
+ pgtable_area += sizeof(*pmd_p) * PTRS_PER_PMD;
+
+ pud = native_make_pud((pmdval_t)pmd_p + PUD_FLAGS);
+ native_set_pud(pud_p, pud);
+ }
+
+ pmd_p += pmd_index(vaddr);
+ if (!native_pmd_val(*pmd_p) || !(native_pmd_val(*pmd_p) & _PAGE_PSE))
+ native_set_pmd(pmd_p, native_make_pmd(pmd_val));
+
+out:
+ return pgtable_area;
+}
+
+static unsigned long __init sme_pgtable_calc(unsigned long len)
+{
+ unsigned long p4d_size, pud_size, pmd_size;
+ unsigned long total;
+
+ /*
+ * Perform a relatively simplistic calculation of the pagetable
+ * entries that are needed. That mappings will be covered by 2MB
+ * PMD entries so we can conservatively calculate the required
+ * number of P4D, PUD and PMD structures needed to perform the
+ * mappings. Incrementing the count for each covers the case where
+ * the addresses cross entries.
+ */
+ if (IS_ENABLED(CONFIG_X86_5LEVEL)) {
+ p4d_size = (ALIGN(len, PGDIR_SIZE) / PGDIR_SIZE) + 1;
+ p4d_size *= sizeof(p4d_t) * PTRS_PER_P4D;
+ pud_size = (ALIGN(len, P4D_SIZE) / P4D_SIZE) + 1;
+ pud_size *= sizeof(pud_t) * PTRS_PER_PUD;
+ } else {
+ p4d_size = 0;
+ pud_size = (ALIGN(len, PGDIR_SIZE) / PGDIR_SIZE) + 1;
+ pud_size *= sizeof(pud_t) * PTRS_PER_PUD;
+ }
+ pmd_size = (ALIGN(len, PUD_SIZE) / PUD_SIZE) + 1;
+ pmd_size *= sizeof(pmd_t) * PTRS_PER_PMD;
+
+ total = p4d_size + pud_size + pmd_size;
+
+ /*
+ * Now calculate the added pagetable structures needed to populate
+ * the new pagetables.
+ */
+ if (IS_ENABLED(CONFIG_X86_5LEVEL)) {
+ p4d_size = ALIGN(total, PGDIR_SIZE) / PGDIR_SIZE;
+ p4d_size *= sizeof(p4d_t) * PTRS_PER_P4D;
+ pud_size = ALIGN(total, P4D_SIZE) / P4D_SIZE;
+ pud_size *= sizeof(pud_t) * PTRS_PER_PUD;
+ } else {
+ p4d_size = 0;
+ pud_size = ALIGN(total, PGDIR_SIZE) / PGDIR_SIZE;
+ pud_size *= sizeof(pud_t) * PTRS_PER_PUD;
+ }
+ pmd_size = ALIGN(total, PUD_SIZE) / PUD_SIZE;
+ pmd_size *= sizeof(pmd_t) * PTRS_PER_PMD;
+
+ total += p4d_size + pud_size + pmd_size;
+
+ return total;
+}
+
+void __init sme_encrypt_kernel(void)
+{
+ unsigned long workarea_start, workarea_end, workarea_len;
+ unsigned long execute_start, execute_end, execute_len;
+ unsigned long kernel_start, kernel_end, kernel_len;
+ unsigned long pgtable_area_len;
+ unsigned long paddr, pmd_flags;
+ unsigned long decrypted_base;
+ void *pgtable_area;
+ pgd_t *pgd;
+
+ if (!sme_active())
+ return;
+
+ /*
+ * Prepare for encrypting the kernel by building new pagetables with
+ * the necessary attributes needed to encrypt the kernel in place.
+ *
+ * One range of virtual addresses will map the memory occupied
+ * by the kernel as encrypted.
+ *
+ * Another range of virtual addresses will map the memory occupied
+ * by the kernel as decrypted and write-protected.
+ *
+ * The use of write-protect attribute will prevent any of the
+ * memory from being cached.
+ */
+
+ /* Physical addresses gives us the identity mapped virtual addresses */
+ kernel_start = __pa_symbol(_text);
+ kernel_end = ALIGN(__pa_symbol(_end), PMD_PAGE_SIZE);
+ kernel_len = kernel_end - kernel_start;
+
+ /* Set the encryption workarea to be immediately after the kernel */
+ workarea_start = kernel_end;
+
+ /*
+ * Calculate required number of workarea bytes needed:
+ * executable encryption area size:
+ * stack page (PAGE_SIZE)
+ * encryption routine page (PAGE_SIZE)
+ * intermediate copy buffer (PMD_PAGE_SIZE)
+ * pagetable structures for the encryption of the kernel
+ * pagetable structures for workarea (in case not currently mapped)
+ */
+ execute_start = workarea_start;
+ execute_end = execute_start + (PAGE_SIZE * 2) + PMD_PAGE_SIZE;
+ execute_len = execute_end - execute_start;
+
+ /*
+ * One PGD for both encrypted and decrypted mappings and a set of
+ * PUDs and PMDs for each of the encrypted and decrypted mappings.
+ */
+ pgtable_area_len = sizeof(pgd_t) * PTRS_PER_PGD;
+ pgtable_area_len += sme_pgtable_calc(execute_end - kernel_start) * 2;
+
+ /* PUDs and PMDs needed in the current pagetables for the workarea */
+ pgtable_area_len += sme_pgtable_calc(execute_len + pgtable_area_len);
+
+ /*
+ * The total workarea includes the executable encryption area and
+ * the pagetable area.
+ */
+ workarea_len = execute_len + pgtable_area_len;
+ workarea_end = workarea_start + workarea_len;
+
+ /*
+ * Set the address to the start of where newly created pagetable
+ * structures (PGDs, PUDs and PMDs) will be allocated. New pagetable
+ * structures are created when the workarea is added to the current
+ * pagetables and when the new encrypted and decrypted kernel
+ * mappings are populated.
+ */
+ pgtable_area = (void *)execute_end;
+
+ /*
+ * Make sure the current pagetable structure has entries for
+ * addressing the workarea.
+ */
+ pgd = (pgd_t *)native_read_cr3_pa();
+ paddr = workarea_start;
+ while (paddr < workarea_end) {
+ pgtable_area = sme_populate_pgd(pgd, pgtable_area,
+ paddr,
+ paddr + PMD_FLAGS);
+
+ paddr += PMD_PAGE_SIZE;
+ }
+
+ /* Flush the TLB - no globals so cr3 is enough */
+ native_write_cr3(__native_read_cr3());
+
+ /*
+ * A new pagetable structure is being built to allow for the kernel
+ * to be encrypted. It starts with an empty PGD that will then be
+ * populated with new PUDs and PMDs as the encrypted and decrypted
+ * kernel mappings are created.
+ */
+ pgd = pgtable_area;
+ memset(pgd, 0, sizeof(*pgd) * PTRS_PER_PGD);
+ pgtable_area += sizeof(*pgd) * PTRS_PER_PGD;
+
+ /* Add encrypted kernel (identity) mappings */
+ pmd_flags = PMD_FLAGS | _PAGE_ENC;
+ paddr = kernel_start;
+ while (paddr < kernel_end) {
+ pgtable_area = sme_populate_pgd(pgd, pgtable_area,
+ paddr,
+ paddr + pmd_flags);
+
+ paddr += PMD_PAGE_SIZE;
+ }
+
+ /*
+ * A different PGD index/entry must be used to get different
+ * pagetable entries for the decrypted mapping. Choose the next
+ * PGD index and convert it to a virtual address to be used as
+ * the base of the mapping.
+ */
+ decrypted_base = (pgd_index(workarea_end) + 1) & (PTRS_PER_PGD - 1);
+ decrypted_base <<= PGDIR_SHIFT;
+
+ /* Add decrypted, write-protected kernel (non-identity) mappings */
+ pmd_flags = (PMD_FLAGS & ~_PAGE_CACHE_MASK) | (_PAGE_PAT | _PAGE_PWT);
+ paddr = kernel_start;
+ while (paddr < kernel_end) {
+ pgtable_area = sme_populate_pgd(pgd, pgtable_area,
+ paddr + decrypted_base,
+ paddr + pmd_flags);
+
+ paddr += PMD_PAGE_SIZE;
+ }
+
+ /* Add decrypted workarea mappings to both kernel mappings */
+ paddr = workarea_start;
+ while (paddr < workarea_end) {
+ pgtable_area = sme_populate_pgd(pgd, pgtable_area,
+ paddr,
+ paddr + PMD_FLAGS);
+
+ pgtable_area = sme_populate_pgd(pgd, pgtable_area,
+ paddr + decrypted_base,
+ paddr + PMD_FLAGS);
+
+ paddr += PMD_PAGE_SIZE;
+ }
+
+ /* Perform the encryption */
+ sme_encrypt_execute(kernel_start, kernel_start + decrypted_base,
+ kernel_len, workarea_start, (unsigned long)pgd);
+
+ /*
+ * At this point we are running encrypted. Remove the mappings for
+ * the decrypted areas - all that is needed for this is to remove
+ * the PGD entry/entries.
+ */
+ sme_clear_pgd(pgd, kernel_start + decrypted_base,
+ kernel_end + decrypted_base);
+
+ sme_clear_pgd(pgd, workarea_start + decrypted_base,
+ workarea_end + decrypted_base);
+
+ /* Flush the TLB - no globals so cr3 is enough */
+ native_write_cr3(__native_read_cr3());
+}
+
+void __init __nostackprotector sme_enable(struct boot_params *bp)
+{
+ const char *cmdline_ptr, *cmdline_arg, *cmdline_on, *cmdline_off;
+ unsigned int eax, ebx, ecx, edx;
+ bool active_by_default;
+ unsigned long me_mask;
+ char buffer[16];
+ u64 msr;
+
+ /* Check for the SME support leaf */
+ eax = 0x80000000;
+ ecx = 0;
+ native_cpuid(&eax, &ebx, &ecx, &edx);
+ if (eax < 0x8000001f)
+ return;
+
+ /*
+ * Check for the SME feature:
+ * CPUID Fn8000_001F[EAX] - Bit 0
+ * Secure Memory Encryption support
+ * CPUID Fn8000_001F[EBX] - Bits 5:0
+ * Pagetable bit position used to indicate encryption
+ */
+ eax = 0x8000001f;
+ ecx = 0;
+ native_cpuid(&eax, &ebx, &ecx, &edx);
+ if (!(eax & 1))
+ return;
+
+ me_mask = 1UL << (ebx & 0x3f);
+
+ /* Check if SME is enabled */
+ msr = __rdmsr(MSR_K8_SYSCFG);
+ if (!(msr & MSR_K8_SYSCFG_MEM_ENCRYPT))
+ return;
+
+ /*
+ * Fixups have not been applied to phys_base yet and we're running
+ * identity mapped, so we must obtain the address to the SME command
+ * line argument data using rip-relative addressing.
+ */
+ asm ("lea sme_cmdline_arg(%%rip), %0"
+ : "=r" (cmdline_arg)
+ : "p" (sme_cmdline_arg));
+ asm ("lea sme_cmdline_on(%%rip), %0"
+ : "=r" (cmdline_on)
+ : "p" (sme_cmdline_on));
+ asm ("lea sme_cmdline_off(%%rip), %0"
+ : "=r" (cmdline_off)
+ : "p" (sme_cmdline_off));
+
+ if (IS_ENABLED(CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT))
+ active_by_default = true;
+ else
+ active_by_default = false;
+
+ cmdline_ptr = (const char *)((u64)bp->hdr.cmd_line_ptr |
+ ((u64)bp->ext_cmd_line_ptr << 32));
+
+ cmdline_find_option(cmdline_ptr, cmdline_arg, buffer, sizeof(buffer));
+
+ if (!strncmp(buffer, cmdline_on, sizeof(buffer)))
+ sme_me_mask = me_mask;
+ else if (!strncmp(buffer, cmdline_off, sizeof(buffer)))
+ sme_me_mask = 0;
+ else
+ sme_me_mask = active_by_default ? me_mask : 0;
+}
diff --git a/arch/x86/mm/mem_encrypt_boot.S b/arch/x86/mm/mem_encrypt_boot.S
new file mode 100644
index 000000000000..730e6d541df1
--- /dev/null
+++ b/arch/x86/mm/mem_encrypt_boot.S
@@ -0,0 +1,149 @@
+/*
+ * AMD Memory Encryption Support
+ *
+ * Copyright (C) 2016 Advanced Micro Devices, Inc.
+ *
+ * Author: Tom Lendacky <thomas.lendacky@amd.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/linkage.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <asm/processor-flags.h>
+#include <asm/msr-index.h>
+
+ .text
+ .code64
+ENTRY(sme_encrypt_execute)
+
+ /*
+ * Entry parameters:
+ * RDI - virtual address for the encrypted kernel mapping
+ * RSI - virtual address for the decrypted kernel mapping
+ * RDX - length of kernel
+ * RCX - virtual address of the encryption workarea, including:
+ * - stack page (PAGE_SIZE)
+ * - encryption routine page (PAGE_SIZE)
+ * - intermediate copy buffer (PMD_PAGE_SIZE)
+ * R8 - physcial address of the pagetables to use for encryption
+ */
+
+ push %rbp
+ movq %rsp, %rbp /* RBP now has original stack pointer */
+
+ /* Set up a one page stack in the non-encrypted memory area */
+ movq %rcx, %rax /* Workarea stack page */
+ leaq PAGE_SIZE(%rax), %rsp /* Set new stack pointer */
+ addq $PAGE_SIZE, %rax /* Workarea encryption routine */
+
+ push %r12
+ movq %rdi, %r10 /* Encrypted kernel */
+ movq %rsi, %r11 /* Decrypted kernel */
+ movq %rdx, %r12 /* Kernel length */
+
+ /* Copy encryption routine into the workarea */
+ movq %rax, %rdi /* Workarea encryption routine */
+ leaq __enc_copy(%rip), %rsi /* Encryption routine */
+ movq $(.L__enc_copy_end - __enc_copy), %rcx /* Encryption routine length */
+ rep movsb
+
+ /* Setup registers for call */
+ movq %r10, %rdi /* Encrypted kernel */
+ movq %r11, %rsi /* Decrypted kernel */
+ movq %r8, %rdx /* Pagetables used for encryption */
+ movq %r12, %rcx /* Kernel length */
+ movq %rax, %r8 /* Workarea encryption routine */
+ addq $PAGE_SIZE, %r8 /* Workarea intermediate copy buffer */
+
+ call *%rax /* Call the encryption routine */
+
+ pop %r12
+
+ movq %rbp, %rsp /* Restore original stack pointer */
+ pop %rbp
+
+ ret
+ENDPROC(sme_encrypt_execute)
+
+ENTRY(__enc_copy)
+/*
+ * Routine used to encrypt kernel.
+ * This routine must be run outside of the kernel proper since
+ * the kernel will be encrypted during the process. So this
+ * routine is defined here and then copied to an area outside
+ * of the kernel where it will remain and run decrypted
+ * during execution.
+ *
+ * On entry the registers must be:
+ * RDI - virtual address for the encrypted kernel mapping
+ * RSI - virtual address for the decrypted kernel mapping
+ * RDX - address of the pagetables to use for encryption
+ * RCX - length of kernel
+ * R8 - intermediate copy buffer
+ *
+ * RAX - points to this routine
+ *
+ * The kernel will be encrypted by copying from the non-encrypted
+ * kernel space to an intermediate buffer and then copying from the
+ * intermediate buffer back to the encrypted kernel space. The physical
+ * addresses of the two kernel space mappings are the same which
+ * results in the kernel being encrypted "in place".
+ */
+ /* Enable the new page tables */
+ mov %rdx, %cr3
+
+ /* Flush any global TLBs */
+ mov %cr4, %rdx
+ andq $~X86_CR4_PGE, %rdx
+ mov %rdx, %cr4
+ orq $X86_CR4_PGE, %rdx
+ mov %rdx, %cr4
+
+ /* Set the PAT register PA5 entry to write-protect */
+ push %rcx
+ movl $MSR_IA32_CR_PAT, %ecx
+ rdmsr
+ push %rdx /* Save original PAT value */
+ andl $0xffff00ff, %edx /* Clear PA5 */
+ orl $0x00000500, %edx /* Set PA5 to WP */
+ wrmsr
+ pop %rdx /* RDX contains original PAT value */
+ pop %rcx
+
+ movq %rcx, %r9 /* Save kernel length */
+ movq %rdi, %r10 /* Save encrypted kernel address */
+ movq %rsi, %r11 /* Save decrypted kernel address */
+
+ wbinvd /* Invalidate any cache entries */
+
+ /* Copy/encrypt 2MB at a time */
+1:
+ movq %r11, %rsi /* Source - decrypted kernel */
+ movq %r8, %rdi /* Dest - intermediate copy buffer */
+ movq $PMD_PAGE_SIZE, %rcx /* 2MB length */
+ rep movsb
+
+ movq %r8, %rsi /* Source - intermediate copy buffer */
+ movq %r10, %rdi /* Dest - encrypted kernel */
+ movq $PMD_PAGE_SIZE, %rcx /* 2MB length */
+ rep movsb
+
+ addq $PMD_PAGE_SIZE, %r11
+ addq $PMD_PAGE_SIZE, %r10
+ subq $PMD_PAGE_SIZE, %r9 /* Kernel length decrement */
+ jnz 1b /* Kernel length not zero? */
+
+ /* Restore PAT register */
+ push %rdx /* Save original PAT value */
+ movl $MSR_IA32_CR_PAT, %ecx
+ rdmsr
+ pop %rdx /* Restore original PAT value */
+ wrmsr
+
+ ret
+.L__enc_copy_end:
+ENDPROC(__enc_copy)
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
index 19ad095b41df..320c6237e1d1 100644
--- a/arch/x86/mm/mmap.c
+++ b/arch/x86/mm/mmap.c
@@ -37,22 +37,21 @@ struct va_alignment __read_mostly va_align = {
.flags = -1,
};
-unsigned long tasksize_32bit(void)
+unsigned long task_size_32bit(void)
{
return IA32_PAGE_OFFSET;
}
-unsigned long tasksize_64bit(void)
+unsigned long task_size_64bit(int full_addr_space)
{
- return TASK_SIZE_MAX;
+ return full_addr_space ? TASK_SIZE_MAX : DEFAULT_MAP_WINDOW;
}
static unsigned long stack_maxrandom_size(unsigned long task_size)
{
unsigned long max = 0;
- if ((current->flags & PF_RANDOMIZE) &&
- !(current->personality & ADDR_NO_RANDOMIZE)) {
- max = (-1UL) & __STACK_RND_MASK(task_size == tasksize_32bit());
+ if (current->flags & PF_RANDOMIZE) {
+ max = (-1UL) & __STACK_RND_MASK(task_size == task_size_32bit());
max <<= PAGE_SHIFT;
}
@@ -74,34 +73,36 @@ static int mmap_is_legacy(void)
if (current->personality & ADDR_COMPAT_LAYOUT)
return 1;
- if (rlimit(RLIMIT_STACK) == RLIM_INFINITY)
- return 1;
-
return sysctl_legacy_va_layout;
}
static unsigned long arch_rnd(unsigned int rndbits)
{
+ if (!(current->flags & PF_RANDOMIZE))
+ return 0;
return (get_random_long() & ((1UL << rndbits) - 1)) << PAGE_SHIFT;
}
unsigned long arch_mmap_rnd(void)
{
- if (!(current->flags & PF_RANDOMIZE))
- return 0;
return arch_rnd(mmap_is_ia32() ? mmap32_rnd_bits : mmap64_rnd_bits);
}
static unsigned long mmap_base(unsigned long rnd, unsigned long task_size)
{
unsigned long gap = rlimit(RLIMIT_STACK);
+ unsigned long pad = stack_maxrandom_size(task_size) + stack_guard_gap;
unsigned long gap_min, gap_max;
+ /* Values close to RLIM_INFINITY can overflow. */
+ if (gap + pad > gap)
+ gap += pad;
+
/*
* Top of mmap area (just below the process stack).
* Leave an at least ~128 MB hole with possible stack randomization.
*/
- gap_min = SIZE_128M + stack_maxrandom_size(task_size);
+ gap_min = SIZE_128M;
gap_max = (task_size / 6) * 5;
if (gap < gap_min)
@@ -140,7 +141,7 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
mm->get_unmapped_area = arch_get_unmapped_area_topdown;
arch_pick_mmap_base(&mm->mmap_base, &mm->mmap_legacy_base,
- arch_rnd(mmap64_rnd_bits), tasksize_64bit());
+ arch_rnd(mmap64_rnd_bits), task_size_64bit(0));
#ifdef CONFIG_HAVE_ARCH_COMPAT_MMAP_BASES
/*
@@ -150,7 +151,7 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
* mmap_base, the compat syscall uses mmap_compat_base.
*/
arch_pick_mmap_base(&mm->mmap_compat_base, &mm->mmap_compat_legacy_base,
- arch_rnd(mmap32_rnd_bits), tasksize_32bit());
+ arch_rnd(mmap32_rnd_bits), task_size_32bit());
#endif
}
@@ -173,3 +174,15 @@ const char *arch_vma_name(struct vm_area_struct *vma)
return "[mpx]";
return NULL;
}
+
+int valid_phys_addr_range(phys_addr_t addr, size_t count)
+{
+ return addr + count <= __pa(high_memory);
+}
+
+int valid_mmap_phys_addr_range(unsigned long pfn, size_t count)
+{
+ phys_addr_t addr = (phys_addr_t)pfn << PAGE_SHIFT;
+
+ return valid_phys_addr_range(addr, count);
+}
diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c
index 1c34b767c84c..9ceaa955d2ba 100644
--- a/arch/x86/mm/mpx.c
+++ b/arch/x86/mm/mpx.c
@@ -355,10 +355,19 @@ int mpx_enable_management(void)
*/
bd_base = mpx_get_bounds_dir();
down_write(&mm->mmap_sem);
+
+ /* MPX doesn't support addresses above 47 bits yet. */
+ if (find_vma(mm, DEFAULT_MAP_WINDOW)) {
+ pr_warn_once("%s (%d): MPX cannot handle addresses "
+ "above 47-bits. Disabling.",
+ current->comm, current->pid);
+ ret = -ENXIO;
+ goto out;
+ }
mm->context.bd_addr = bd_base;
if (mm->context.bd_addr == MPX_INVALID_BOUNDS_DIR)
ret = -ENXIO;
-
+out:
up_write(&mm->mmap_sem);
return ret;
}
@@ -1030,3 +1039,25 @@ void mpx_notify_unmap(struct mm_struct *mm, struct vm_area_struct *vma,
if (ret)
force_sig(SIGSEGV, current);
}
+
+/* MPX cannot handle addresses above 47 bits yet. */
+unsigned long mpx_unmapped_area_check(unsigned long addr, unsigned long len,
+ unsigned long flags)
+{
+ if (!kernel_managing_mpx_tables(current->mm))
+ return addr;
+ if (addr + len <= DEFAULT_MAP_WINDOW)
+ return addr;
+ if (flags & MAP_FIXED)
+ return -ENOMEM;
+
+ /*
+ * Requested len is larger than the whole area we're allowed to map in.
+ * Resetting hinting address wouldn't do much good -- fail early.
+ */
+ if (len > DEFAULT_MAP_WINDOW)
+ return -ENOMEM;
+
+ /* Look for unmap area within DEFAULT_MAP_WINDOW */
+ return 0;
+}
diff --git a/arch/x86/mm/numa_emulation.c b/arch/x86/mm/numa_emulation.c
index a8f90ce3dedf..d805162e6045 100644
--- a/arch/x86/mm/numa_emulation.c
+++ b/arch/x86/mm/numa_emulation.c
@@ -75,13 +75,15 @@ static int __init emu_setup_memblk(struct numa_meminfo *ei,
/*
* Sets up nr_nodes fake nodes interleaved over physical nodes ranging from addr
- * to max_addr. The return value is the number of nodes allocated.
+ * to max_addr.
+ *
+ * Returns zero on success or negative on error.
*/
static int __init split_nodes_interleave(struct numa_meminfo *ei,
struct numa_meminfo *pi,
u64 addr, u64 max_addr, int nr_nodes)
{
- nodemask_t physnode_mask = NODE_MASK_NONE;
+ nodemask_t physnode_mask = numa_nodes_parsed;
u64 size;
int big;
int nid = 0;
@@ -116,9 +118,6 @@ static int __init split_nodes_interleave(struct numa_meminfo *ei,
return -1;
}
- for (i = 0; i < pi->nr_blks; i++)
- node_set(pi->blk[i].nid, physnode_mask);
-
/*
* Continue to fill physical nodes with fake nodes until there is no
* memory left on any of them.
@@ -200,13 +199,15 @@ static u64 __init find_end_of_node(u64 start, u64 max_addr, u64 size)
/*
* Sets up fake nodes of `size' interleaved over physical nodes ranging from
- * `addr' to `max_addr'. The return value is the number of nodes allocated.
+ * `addr' to `max_addr'.
+ *
+ * Returns zero on success or negative on error.
*/
static int __init split_nodes_size_interleave(struct numa_meminfo *ei,
struct numa_meminfo *pi,
u64 addr, u64 max_addr, u64 size)
{
- nodemask_t physnode_mask = NODE_MASK_NONE;
+ nodemask_t physnode_mask = numa_nodes_parsed;
u64 min_size;
int nid = 0;
int i, ret;
@@ -231,9 +232,6 @@ static int __init split_nodes_size_interleave(struct numa_meminfo *ei,
}
size &= FAKE_NODE_MIN_HASH_MASK;
- for (i = 0; i < pi->nr_blks; i++)
- node_set(pi->blk[i].nid, physnode_mask);
-
/*
* Fill physical nodes with fake nodes of size until there is no memory
* left on any of them.
@@ -280,6 +278,22 @@ static int __init split_nodes_size_interleave(struct numa_meminfo *ei,
return 0;
}
+int __init setup_emu2phys_nid(int *dfl_phys_nid)
+{
+ int i, max_emu_nid = 0;
+
+ *dfl_phys_nid = NUMA_NO_NODE;
+ for (i = 0; i < ARRAY_SIZE(emu_nid_to_phys); i++) {
+ if (emu_nid_to_phys[i] != NUMA_NO_NODE) {
+ max_emu_nid = i;
+ if (*dfl_phys_nid == NUMA_NO_NODE)
+ *dfl_phys_nid = emu_nid_to_phys[i];
+ }
+ }
+
+ return max_emu_nid;
+}
+
/**
* numa_emulation - Emulate NUMA nodes
* @numa_meminfo: NUMA configuration to massage
@@ -376,23 +390,18 @@ void __init numa_emulation(struct numa_meminfo *numa_meminfo, int numa_dist_cnt)
* Determine the max emulated nid and the default phys nid to use
* for unmapped nodes.
*/
- max_emu_nid = 0;
- dfl_phys_nid = NUMA_NO_NODE;
- for (i = 0; i < ARRAY_SIZE(emu_nid_to_phys); i++) {
- if (emu_nid_to_phys[i] != NUMA_NO_NODE) {
- max_emu_nid = i;
- if (dfl_phys_nid == NUMA_NO_NODE)
- dfl_phys_nid = emu_nid_to_phys[i];
- }
- }
- if (dfl_phys_nid == NUMA_NO_NODE) {
- pr_warning("NUMA: Warning: can't determine default physical node, disabling emulation\n");
- goto no_emu;
- }
+ max_emu_nid = setup_emu2phys_nid(&dfl_phys_nid);
/* commit */
*numa_meminfo = ei;
+ /* Make sure numa_nodes_parsed only contains emulated nodes */
+ nodes_clear(numa_nodes_parsed);
+ for (i = 0; i < ARRAY_SIZE(ei.blk); i++)
+ if (ei.blk[i].start != ei.blk[i].end &&
+ ei.blk[i].nid != NUMA_NO_NODE)
+ node_set(ei.blk[i].nid, numa_nodes_parsed);
+
/*
* Transform __apicid_to_node table to use emulated nids by
* reverse-mapping phys_nid. The maps should always exist but fall
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index c8520b2c62d2..dfb7d657cf43 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -150,6 +150,12 @@ void clflush_cache_range(void *vaddr, unsigned int size)
}
EXPORT_SYMBOL_GPL(clflush_cache_range);
+void arch_invalidate_pmem(void *addr, size_t size)
+{
+ clflush_cache_range(addr, size);
+}
+EXPORT_SYMBOL_GPL(arch_invalidate_pmem);
+
static void __cpa_flush_all(void *arg)
{
unsigned long cache = (unsigned long)arg;
@@ -1769,6 +1775,70 @@ int set_memory_4k(unsigned long addr, int numpages)
__pgprot(0), 1, 0, NULL);
}
+static int __set_memory_enc_dec(unsigned long addr, int numpages, bool enc)
+{
+ struct cpa_data cpa;
+ unsigned long start;
+ int ret;
+
+ /* Nothing to do if the SME is not active */
+ if (!sme_active())
+ return 0;
+
+ /* Should not be working on unaligned addresses */
+ if (WARN_ONCE(addr & ~PAGE_MASK, "misaligned address: %#lx\n", addr))
+ addr &= PAGE_MASK;
+
+ start = addr;
+
+ memset(&cpa, 0, sizeof(cpa));
+ cpa.vaddr = &addr;
+ cpa.numpages = numpages;
+ cpa.mask_set = enc ? __pgprot(_PAGE_ENC) : __pgprot(0);
+ cpa.mask_clr = enc ? __pgprot(0) : __pgprot(_PAGE_ENC);
+ cpa.pgd = init_mm.pgd;
+
+ /* Must avoid aliasing mappings in the highmem code */
+ kmap_flush_unused();
+ vm_unmap_aliases();
+
+ /*
+ * Before changing the encryption attribute, we need to flush caches.
+ */
+ if (static_cpu_has(X86_FEATURE_CLFLUSH))
+ cpa_flush_range(start, numpages, 1);
+ else
+ cpa_flush_all(1);
+
+ ret = __change_page_attr_set_clr(&cpa, 1);
+
+ /*
+ * After changing the encryption attribute, we need to flush TLBs
+ * again in case any speculative TLB caching occurred (but no need
+ * to flush caches again). We could just use cpa_flush_all(), but
+ * in case TLB flushing gets optimized in the cpa_flush_range()
+ * path use the same logic as above.
+ */
+ if (static_cpu_has(X86_FEATURE_CLFLUSH))
+ cpa_flush_range(start, numpages, 0);
+ else
+ cpa_flush_all(0);
+
+ return ret;
+}
+
+int set_memory_encrypted(unsigned long addr, int numpages)
+{
+ return __set_memory_enc_dec(addr, numpages, true);
+}
+EXPORT_SYMBOL_GPL(set_memory_encrypted);
+
+int set_memory_decrypted(unsigned long addr, int numpages)
+{
+ return __set_memory_enc_dec(addr, numpages, false);
+}
+EXPORT_SYMBOL_GPL(set_memory_decrypted);
+
int set_pages_uc(struct page *page, int numpages)
{
unsigned long addr = (unsigned long)page_address(page);
@@ -2014,6 +2084,9 @@ int kernel_map_pages_in_pgd(pgd_t *pgd, u64 pfn, unsigned long address,
if (!(page_flags & _PAGE_RW))
cpa.mask_clr = __pgprot(_PAGE_RW);
+ if (!(page_flags & _PAGE_ENC))
+ cpa.mask_clr = pgprot_encrypted(cpa.mask_clr);
+
cpa.mask_set = __pgprot(_PAGE_PRESENT | page_flags);
retval = __change_page_attr_set_clr(&cpa, 0);
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index 9b78685b66e6..fe7d57a8fb60 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -37,14 +37,14 @@
#undef pr_fmt
#define pr_fmt(fmt) "" fmt
-static bool boot_cpu_done;
-
-static int __read_mostly __pat_enabled = IS_ENABLED(CONFIG_X86_PAT);
-static void init_cache_modes(void);
+static bool __read_mostly boot_cpu_done;
+static bool __read_mostly pat_disabled = !IS_ENABLED(CONFIG_X86_PAT);
+static bool __read_mostly pat_initialized;
+static bool __read_mostly init_cm_done;
void pat_disable(const char *reason)
{
- if (!__pat_enabled)
+ if (pat_disabled)
return;
if (boot_cpu_done) {
@@ -52,10 +52,8 @@ void pat_disable(const char *reason)
return;
}
- __pat_enabled = 0;
+ pat_disabled = true;
pr_info("x86/PAT: %s\n", reason);
-
- init_cache_modes();
}
static int __init nopat(char *str)
@@ -67,7 +65,7 @@ early_param("nopat", nopat);
bool pat_enabled(void)
{
- return !!__pat_enabled;
+ return pat_initialized;
}
EXPORT_SYMBOL_GPL(pat_enabled);
@@ -205,6 +203,8 @@ static void __init_cache_modes(u64 pat)
update_cache_mode_entry(i, cache);
}
pr_info("x86/PAT: Configuration [0-7]: %s\n", pat_msg);
+
+ init_cm_done = true;
}
#define PAT(x, y) ((u64)PAT_ ## y << ((x)*8))
@@ -225,6 +225,7 @@ static void pat_bsp_init(u64 pat)
}
wrmsrl(MSR_IA32_CR_PAT, pat);
+ pat_initialized = true;
__init_cache_modes(pat);
}
@@ -242,10 +243,9 @@ static void pat_ap_init(u64 pat)
wrmsrl(MSR_IA32_CR_PAT, pat);
}
-static void init_cache_modes(void)
+void init_cache_modes(void)
{
u64 pat = 0;
- static int init_cm_done;
if (init_cm_done)
return;
@@ -287,15 +287,13 @@ static void init_cache_modes(void)
}
__init_cache_modes(pat);
-
- init_cm_done = 1;
}
/**
* pat_init - Initialize PAT MSR and PAT table
*
* This function initializes PAT MSR and PAT table with an OS-defined value
- * to enable additional cache attributes, WC and WT.
+ * to enable additional cache attributes, WC, WT and WP.
*
* This function must be called on all CPUs using the specific sequence of
* operations defined in Intel SDM. mtrr_rendezvous_handler() provides this
@@ -306,10 +304,8 @@ void pat_init(void)
u64 pat;
struct cpuinfo_x86 *c = &boot_cpu_data;
- if (!pat_enabled()) {
- init_cache_modes();
+ if (pat_disabled)
return;
- }
if ((c->x86_vendor == X86_VENDOR_INTEL) &&
(((c->x86 == 0x6) && (c->x86_model <= 0xd)) ||
@@ -356,7 +352,7 @@ void pat_init(void)
* 010 2 UC-: _PAGE_CACHE_MODE_UC_MINUS
* 011 3 UC : _PAGE_CACHE_MODE_UC
* 100 4 WB : Reserved
- * 101 5 WC : Reserved
+ * 101 5 WP : _PAGE_CACHE_MODE_WP
* 110 6 UC-: Reserved
* 111 7 WT : _PAGE_CACHE_MODE_WT
*
@@ -364,7 +360,7 @@ void pat_init(void)
* corresponding types in the presence of PAT errata.
*/
pat = PAT(0, WB) | PAT(1, WC) | PAT(2, UC_MINUS) | PAT(3, UC) |
- PAT(4, WB) | PAT(5, WC) | PAT(6, UC_MINUS) | PAT(7, WT);
+ PAT(4, WB) | PAT(5, WP) | PAT(6, UC_MINUS) | PAT(7, WT);
}
if (!boot_cpu_done) {
@@ -748,6 +744,9 @@ EXPORT_SYMBOL(arch_io_free_memtype_wc);
pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
unsigned long size, pgprot_t vma_prot)
{
+ if (!phys_mem_access_encrypted(pfn << PAGE_SHIFT, size))
+ vma_prot = pgprot_decrypted(vma_prot);
+
return vma_prot;
}
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 508a708eb9a6..b372f3442bbf 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -56,7 +56,7 @@ void ___pte_free_tlb(struct mmu_gather *tlb, struct page *pte)
{
pgtable_page_dtor(pte);
paravirt_release_pte(page_to_pfn(pte));
- tlb_remove_page(tlb, pte);
+ tlb_remove_table(tlb, pte);
}
#if CONFIG_PGTABLE_LEVELS > 2
@@ -72,21 +72,21 @@ void ___pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
tlb->need_flush_all = 1;
#endif
pgtable_pmd_page_dtor(page);
- tlb_remove_page(tlb, page);
+ tlb_remove_table(tlb, page);
}
#if CONFIG_PGTABLE_LEVELS > 3
void ___pud_free_tlb(struct mmu_gather *tlb, pud_t *pud)
{
paravirt_release_pud(__pa(pud) >> PAGE_SHIFT);
- tlb_remove_page(tlb, virt_to_page(pud));
+ tlb_remove_table(tlb, virt_to_page(pud));
}
#if CONFIG_PGTABLE_LEVELS > 4
void ___p4d_free_tlb(struct mmu_gather *tlb, p4d_t *p4d)
{
paravirt_release_p4d(__pa(p4d) >> PAGE_SHIFT);
- tlb_remove_page(tlb, virt_to_page(p4d));
+ tlb_remove_table(tlb, virt_to_page(p4d));
}
#endif /* CONFIG_PGTABLE_LEVELS > 4 */
#endif /* CONFIG_PGTABLE_LEVELS > 3 */
@@ -426,10 +426,8 @@ int ptep_set_access_flags(struct vm_area_struct *vma,
{
int changed = !pte_same(*ptep, entry);
- if (changed && dirty) {
+ if (changed && dirty)
*ptep = entry;
- pte_update(vma->vm_mm, address, ptep);
- }
return changed;
}
@@ -486,9 +484,6 @@ int ptep_test_and_clear_young(struct vm_area_struct *vma,
ret = test_and_clear_bit(_PAGE_BIT_ACCESSED,
(unsigned long *) &ptep->pte);
- if (ret)
- pte_update(vma->vm_mm, addr, ptep);
-
return ret;
}
diff --git a/arch/x86/mm/pkeys.c b/arch/x86/mm/pkeys.c
index 2dab69a706ec..d7bc0eea20a5 100644
--- a/arch/x86/mm/pkeys.c
+++ b/arch/x86/mm/pkeys.c
@@ -18,7 +18,6 @@
#include <asm/cpufeature.h> /* boot_cpu_has, ... */
#include <asm/mmu_context.h> /* vma_pkey() */
-#include <asm/fpu/internal.h> /* fpregs_active() */
int __execute_only_pkey(struct mm_struct *mm)
{
@@ -45,7 +44,7 @@ int __execute_only_pkey(struct mm_struct *mm)
*/
preempt_disable();
if (!need_to_set_mm_pkey &&
- fpregs_active() &&
+ current->thread.fpu.initialized &&
!__pkru_allows_read(read_pkru(), execute_only_pkey)) {
preempt_enable();
return execute_only_pkey;
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index 6e7bedf69af7..0f3d0cea4d00 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -15,7 +15,7 @@
#include <linux/debugfs.h>
/*
- * Smarter SMP flushing macros.
+ * TLB flushing, formerly SMP-only
* c/o Linus Torvalds.
*
* These mean you can really definitely utterly forget about
@@ -28,38 +28,63 @@
* Implement flush IPI by CALL_FUNCTION_VECTOR, Alex Shi
*/
-#ifdef CONFIG_SMP
+atomic64_t last_mm_ctx_id = ATOMIC64_INIT(1);
-struct flush_tlb_info {
- struct mm_struct *flush_mm;
- unsigned long flush_start;
- unsigned long flush_end;
-};
-/*
- * We cannot call mmdrop() because we are in interrupt context,
- * instead update mm->cpu_vm_mask.
- */
-void leave_mm(int cpu)
+static void choose_new_asid(struct mm_struct *next, u64 next_tlb_gen,
+ u16 *new_asid, bool *need_flush)
{
- struct mm_struct *active_mm = this_cpu_read(cpu_tlbstate.active_mm);
- if (this_cpu_read(cpu_tlbstate.state) == TLBSTATE_OK)
- BUG();
- if (cpumask_test_cpu(cpu, mm_cpumask(active_mm))) {
- cpumask_clear_cpu(cpu, mm_cpumask(active_mm));
- load_cr3(swapper_pg_dir);
- /*
- * This gets called in the idle path where RCU
- * functions differently. Tracing normally
- * uses RCU, so we have to call the tracepoint
- * specially here.
- */
- trace_tlb_flush_rcuidle(TLB_FLUSH_ON_TASK_SWITCH, TLB_FLUSH_ALL);
+ u16 asid;
+
+ if (!static_cpu_has(X86_FEATURE_PCID)) {
+ *new_asid = 0;
+ *need_flush = true;
+ return;
}
+
+ for (asid = 0; asid < TLB_NR_DYN_ASIDS; asid++) {
+ if (this_cpu_read(cpu_tlbstate.ctxs[asid].ctx_id) !=
+ next->context.ctx_id)
+ continue;
+
+ *new_asid = asid;
+ *need_flush = (this_cpu_read(cpu_tlbstate.ctxs[asid].tlb_gen) <
+ next_tlb_gen);
+ return;
+ }
+
+ /*
+ * We don't currently own an ASID slot on this CPU.
+ * Allocate a slot.
+ */
+ *new_asid = this_cpu_add_return(cpu_tlbstate.next_asid, 1) - 1;
+ if (*new_asid >= TLB_NR_DYN_ASIDS) {
+ *new_asid = 0;
+ this_cpu_write(cpu_tlbstate.next_asid, 1);
+ }
+ *need_flush = true;
}
-EXPORT_SYMBOL_GPL(leave_mm);
-#endif /* CONFIG_SMP */
+void leave_mm(int cpu)
+{
+ struct mm_struct *loaded_mm = this_cpu_read(cpu_tlbstate.loaded_mm);
+
+ /*
+ * It's plausible that we're in lazy TLB mode while our mm is init_mm.
+ * If so, our callers still expect us to flush the TLB, but there
+ * aren't any user TLB entries in init_mm to worry about.
+ *
+ * This needs to happen before any other sanity checks due to
+ * intel_idle's shenanigans.
+ */
+ if (loaded_mm == &init_mm)
+ return;
+
+ /* Warn if we're not lazy. */
+ WARN_ON(!this_cpu_read(cpu_tlbstate.is_lazy));
+
+ switch_mm(NULL, &init_mm, NULL);
+}
void switch_mm(struct mm_struct *prev, struct mm_struct *next,
struct task_struct *tsk)
@@ -74,217 +99,375 @@ void switch_mm(struct mm_struct *prev, struct mm_struct *next,
void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next,
struct task_struct *tsk)
{
+ struct mm_struct *real_prev = this_cpu_read(cpu_tlbstate.loaded_mm);
+ u16 prev_asid = this_cpu_read(cpu_tlbstate.loaded_mm_asid);
unsigned cpu = smp_processor_id();
+ u64 next_tlb_gen;
+
+ /*
+ * NB: The scheduler will call us with prev == next when switching
+ * from lazy TLB mode to normal mode if active_mm isn't changing.
+ * When this happens, we don't assume that CR3 (and hence
+ * cpu_tlbstate.loaded_mm) matches next.
+ *
+ * NB: leave_mm() calls us with prev == NULL and tsk == NULL.
+ */
+
+ /* We don't want flush_tlb_func_* to run concurrently with us. */
+ if (IS_ENABLED(CONFIG_PROVE_LOCKING))
+ WARN_ON_ONCE(!irqs_disabled());
+
+ /*
+ * Verify that CR3 is what we think it is. This will catch
+ * hypothetical buggy code that directly switches to swapper_pg_dir
+ * without going through leave_mm() / switch_mm_irqs_off() or that
+ * does something like write_cr3(read_cr3_pa()).
+ *
+ * Only do this check if CONFIG_DEBUG_VM=y because __read_cr3()
+ * isn't free.
+ */
+#ifdef CONFIG_DEBUG_VM
+ if (WARN_ON_ONCE(__read_cr3() != build_cr3(real_prev, prev_asid))) {
+ /*
+ * If we were to BUG here, we'd be very likely to kill
+ * the system so hard that we don't see the call trace.
+ * Try to recover instead by ignoring the error and doing
+ * a global flush to minimize the chance of corruption.
+ *
+ * (This is far from being a fully correct recovery.
+ * Architecturally, the CPU could prefetch something
+ * back into an incorrect ASID slot and leave it there
+ * to cause trouble down the road. It's better than
+ * nothing, though.)
+ */
+ __flush_tlb_all();
+ }
+#endif
+ this_cpu_write(cpu_tlbstate.is_lazy, false);
+
+ if (real_prev == next) {
+ VM_WARN_ON(this_cpu_read(cpu_tlbstate.ctxs[prev_asid].ctx_id) !=
+ next->context.ctx_id);
+
+ /*
+ * We don't currently support having a real mm loaded without
+ * our cpu set in mm_cpumask(). We have all the bookkeeping
+ * in place to figure out whether we would need to flush
+ * if our cpu were cleared in mm_cpumask(), but we don't
+ * currently use it.
+ */
+ if (WARN_ON_ONCE(real_prev != &init_mm &&
+ !cpumask_test_cpu(cpu, mm_cpumask(next))))
+ cpumask_set_cpu(cpu, mm_cpumask(next));
+
+ return;
+ } else {
+ u16 new_asid;
+ bool need_flush;
- if (likely(prev != next)) {
if (IS_ENABLED(CONFIG_VMAP_STACK)) {
/*
* If our current stack is in vmalloc space and isn't
* mapped in the new pgd, we'll double-fault. Forcibly
* map it.
*/
- unsigned int stack_pgd_index = pgd_index(current_stack_pointer());
-
- pgd_t *pgd = next->pgd + stack_pgd_index;
+ unsigned int index = pgd_index(current_stack_pointer);
+ pgd_t *pgd = next->pgd + index;
if (unlikely(pgd_none(*pgd)))
- set_pgd(pgd, init_mm.pgd[stack_pgd_index]);
+ set_pgd(pgd, init_mm.pgd[index]);
}
-#ifdef CONFIG_SMP
- this_cpu_write(cpu_tlbstate.state, TLBSTATE_OK);
- this_cpu_write(cpu_tlbstate.active_mm, next);
-#endif
-
- cpumask_set_cpu(cpu, mm_cpumask(next));
+ /* Stop remote flushes for the previous mm */
+ VM_WARN_ON_ONCE(!cpumask_test_cpu(cpu, mm_cpumask(real_prev)) &&
+ real_prev != &init_mm);
+ cpumask_clear_cpu(cpu, mm_cpumask(real_prev));
/*
- * Re-load page tables.
- *
- * This logic has an ordering constraint:
- *
- * CPU 0: Write to a PTE for 'next'
- * CPU 0: load bit 1 in mm_cpumask. if nonzero, send IPI.
- * CPU 1: set bit 1 in next's mm_cpumask
- * CPU 1: load from the PTE that CPU 0 writes (implicit)
- *
- * We need to prevent an outcome in which CPU 1 observes
- * the new PTE value and CPU 0 observes bit 1 clear in
- * mm_cpumask. (If that occurs, then the IPI will never
- * be sent, and CPU 0's TLB will contain a stale entry.)
- *
- * The bad outcome can occur if either CPU's load is
- * reordered before that CPU's store, so both CPUs must
- * execute full barriers to prevent this from happening.
- *
- * Thus, switch_mm needs a full barrier between the
- * store to mm_cpumask and any operation that could load
- * from next->pgd. TLB fills are special and can happen
- * due to instruction fetches or for no reason at all,
- * and neither LOCK nor MFENCE orders them.
- * Fortunately, load_cr3() is serializing and gives the
- * ordering guarantee we need.
- *
+ * Start remote flushes and then read tlb_gen.
*/
- load_cr3(next->pgd);
-
- trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH, TLB_FLUSH_ALL);
+ cpumask_set_cpu(cpu, mm_cpumask(next));
+ next_tlb_gen = atomic64_read(&next->context.tlb_gen);
- /* Stop flush ipis for the previous mm */
- cpumask_clear_cpu(cpu, mm_cpumask(prev));
+ choose_new_asid(next, next_tlb_gen, &new_asid, &need_flush);
- /* Load per-mm CR4 state */
- load_mm_cr4(next);
+ if (need_flush) {
+ this_cpu_write(cpu_tlbstate.ctxs[new_asid].ctx_id, next->context.ctx_id);
+ this_cpu_write(cpu_tlbstate.ctxs[new_asid].tlb_gen, next_tlb_gen);
+ write_cr3(build_cr3(next, new_asid));
+ trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH,
+ TLB_FLUSH_ALL);
+ } else {
+ /* The new ASID is already up to date. */
+ write_cr3(build_cr3_noflush(next, new_asid));
+ trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH, 0);
+ }
-#ifdef CONFIG_MODIFY_LDT_SYSCALL
- /*
- * Load the LDT, if the LDT is different.
- *
- * It's possible that prev->context.ldt doesn't match
- * the LDT register. This can happen if leave_mm(prev)
- * was called and then modify_ldt changed
- * prev->context.ldt but suppressed an IPI to this CPU.
- * In this case, prev->context.ldt != NULL, because we
- * never set context.ldt to NULL while the mm still
- * exists. That means that next->context.ldt !=
- * prev->context.ldt, because mms never share an LDT.
- */
- if (unlikely(prev->context.ldt != next->context.ldt))
- load_mm_ldt(next);
-#endif
+ this_cpu_write(cpu_tlbstate.loaded_mm, next);
+ this_cpu_write(cpu_tlbstate.loaded_mm_asid, new_asid);
}
-#ifdef CONFIG_SMP
- else {
- this_cpu_write(cpu_tlbstate.state, TLBSTATE_OK);
- BUG_ON(this_cpu_read(cpu_tlbstate.active_mm) != next);
- if (!cpumask_test_cpu(cpu, mm_cpumask(next))) {
- /*
- * On established mms, the mm_cpumask is only changed
- * from irq context, from ptep_clear_flush() while in
- * lazy tlb mode, and here. Irqs are blocked during
- * schedule, protecting us from simultaneous changes.
- */
- cpumask_set_cpu(cpu, mm_cpumask(next));
+ load_mm_cr4(next);
+ switch_ldt(real_prev, next);
+}
- /*
- * We were in lazy tlb mode and leave_mm disabled
- * tlb flush IPI delivery. We must reload CR3
- * to make sure to use no freed page tables.
- *
- * As above, load_cr3() is serializing and orders TLB
- * fills with respect to the mm_cpumask write.
- */
- load_cr3(next->pgd);
- trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH, TLB_FLUSH_ALL);
- load_mm_cr4(next);
- load_mm_ldt(next);
- }
+/*
+ * Please ignore the name of this function. It should be called
+ * switch_to_kernel_thread().
+ *
+ * enter_lazy_tlb() is a hint from the scheduler that we are entering a
+ * kernel thread or other context without an mm. Acceptable implementations
+ * include doing nothing whatsoever, switching to init_mm, or various clever
+ * lazy tricks to try to minimize TLB flushes.
+ *
+ * The scheduler reserves the right to call enter_lazy_tlb() several times
+ * in a row. It will notify us that we're going back to a real mm by
+ * calling switch_mm_irqs_off().
+ */
+void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
+{
+ if (this_cpu_read(cpu_tlbstate.loaded_mm) == &init_mm)
+ return;
+
+ if (tlb_defer_switch_to_init_mm()) {
+ /*
+ * There's a significant optimization that may be possible
+ * here. We have accurate enough TLB flush tracking that we
+ * don't need to maintain coherence of TLB per se when we're
+ * lazy. We do, however, need to maintain coherence of
+ * paging-structure caches. We could, in principle, leave our
+ * old mm loaded and only switch to init_mm when
+ * tlb_remove_page() happens.
+ */
+ this_cpu_write(cpu_tlbstate.is_lazy, true);
+ } else {
+ switch_mm(NULL, &init_mm, NULL);
}
-#endif
}
-#ifdef CONFIG_SMP
-
/*
- * The flush IPI assumes that a thread switch happens in this order:
- * [cpu0: the cpu that switches]
- * 1) switch_mm() either 1a) or 1b)
- * 1a) thread switch to a different mm
- * 1a1) set cpu_tlbstate to TLBSTATE_OK
- * Now the tlb flush NMI handler flush_tlb_func won't call leave_mm
- * if cpu0 was in lazy tlb mode.
- * 1a2) update cpu active_mm
- * Now cpu0 accepts tlb flushes for the new mm.
- * 1a3) cpu_set(cpu, new_mm->cpu_vm_mask);
- * Now the other cpus will send tlb flush ipis.
- * 1a4) change cr3.
- * 1a5) cpu_clear(cpu, old_mm->cpu_vm_mask);
- * Stop ipi delivery for the old mm. This is not synchronized with
- * the other cpus, but flush_tlb_func ignore flush ipis for the wrong
- * mm, and in the worst case we perform a superfluous tlb flush.
- * 1b) thread switch without mm change
- * cpu active_mm is correct, cpu0 already handles flush ipis.
- * 1b1) set cpu_tlbstate to TLBSTATE_OK
- * 1b2) test_and_set the cpu bit in cpu_vm_mask.
- * Atomically set the bit [other cpus will start sending flush ipis],
- * and test the bit.
- * 1b3) if the bit was 0: leave_mm was called, flush the tlb.
- * 2) switch %%esp, ie current
+ * Call this when reinitializing a CPU. It fixes the following potential
+ * problems:
*
- * The interrupt must handle 2 special cases:
- * - cr3 is changed before %%esp, ie. it cannot use current->{active_,}mm.
- * - the cpu performs speculative tlb reads, i.e. even if the cpu only
- * runs in kernel space, the cpu could load tlb entries for user space
- * pages.
+ * - The ASID changed from what cpu_tlbstate thinks it is (most likely
+ * because the CPU was taken down and came back up with CR3's PCID
+ * bits clear. CPU hotplug can do this.
*
- * The good news is that cpu_tlbstate is local to each cpu, no
- * write/read ordering problems.
+ * - The TLB contains junk in slots corresponding to inactive ASIDs.
+ *
+ * - The CPU went so far out to lunch that it may have missed a TLB
+ * flush.
*/
+void initialize_tlbstate_and_flush(void)
+{
+ int i;
+ struct mm_struct *mm = this_cpu_read(cpu_tlbstate.loaded_mm);
+ u64 tlb_gen = atomic64_read(&init_mm.context.tlb_gen);
+ unsigned long cr3 = __read_cr3();
+
+ /* Assert that CR3 already references the right mm. */
+ WARN_ON((cr3 & CR3_ADDR_MASK) != __pa(mm->pgd));
+
+ /*
+ * Assert that CR4.PCIDE is set if needed. (CR4.PCIDE initialization
+ * doesn't work like other CR4 bits because it can only be set from
+ * long mode.)
+ */
+ WARN_ON(boot_cpu_has(X86_FEATURE_PCID) &&
+ !(cr4_read_shadow() & X86_CR4_PCIDE));
+
+ /* Force ASID 0 and force a TLB flush. */
+ write_cr3(build_cr3(mm, 0));
+
+ /* Reinitialize tlbstate. */
+ this_cpu_write(cpu_tlbstate.loaded_mm_asid, 0);
+ this_cpu_write(cpu_tlbstate.next_asid, 1);
+ this_cpu_write(cpu_tlbstate.ctxs[0].ctx_id, mm->context.ctx_id);
+ this_cpu_write(cpu_tlbstate.ctxs[0].tlb_gen, tlb_gen);
+
+ for (i = 1; i < TLB_NR_DYN_ASIDS; i++)
+ this_cpu_write(cpu_tlbstate.ctxs[i].ctx_id, 0);
+}
/*
- * TLB flush funcation:
- * 1) Flush the tlb entries if the cpu uses the mm that's being flushed.
- * 2) Leave the mm if we are in the lazy tlb mode.
+ * flush_tlb_func_common()'s memory ordering requirement is that any
+ * TLB fills that happen after we flush the TLB are ordered after we
+ * read active_mm's tlb_gen. We don't need any explicit barriers
+ * because all x86 flush operations are serializing and the
+ * atomic64_read operation won't be reordered by the compiler.
*/
-static void flush_tlb_func(void *info)
+static void flush_tlb_func_common(const struct flush_tlb_info *f,
+ bool local, enum tlb_flush_reason reason)
{
- struct flush_tlb_info *f = info;
+ /*
+ * We have three different tlb_gen values in here. They are:
+ *
+ * - mm_tlb_gen: the latest generation.
+ * - local_tlb_gen: the generation that this CPU has already caught
+ * up to.
+ * - f->new_tlb_gen: the generation that the requester of the flush
+ * wants us to catch up to.
+ */
+ struct mm_struct *loaded_mm = this_cpu_read(cpu_tlbstate.loaded_mm);
+ u32 loaded_mm_asid = this_cpu_read(cpu_tlbstate.loaded_mm_asid);
+ u64 mm_tlb_gen = atomic64_read(&loaded_mm->context.tlb_gen);
+ u64 local_tlb_gen = this_cpu_read(cpu_tlbstate.ctxs[loaded_mm_asid].tlb_gen);
- inc_irq_stat(irq_tlb_count);
+ /* This code cannot presently handle being reentered. */
+ VM_WARN_ON(!irqs_disabled());
- if (f->flush_mm && f->flush_mm != this_cpu_read(cpu_tlbstate.active_mm))
+ if (unlikely(loaded_mm == &init_mm))
return;
- count_vm_tlb_event(NR_TLB_REMOTE_FLUSH_RECEIVED);
- if (this_cpu_read(cpu_tlbstate.state) == TLBSTATE_OK) {
- if (f->flush_end == TLB_FLUSH_ALL) {
- local_flush_tlb();
- trace_tlb_flush(TLB_REMOTE_SHOOTDOWN, TLB_FLUSH_ALL);
- } else {
- unsigned long addr;
- unsigned long nr_pages =
- (f->flush_end - f->flush_start) / PAGE_SIZE;
- addr = f->flush_start;
- while (addr < f->flush_end) {
- __flush_tlb_single(addr);
- addr += PAGE_SIZE;
- }
- trace_tlb_flush(TLB_REMOTE_SHOOTDOWN, nr_pages);
+ VM_WARN_ON(this_cpu_read(cpu_tlbstate.ctxs[loaded_mm_asid].ctx_id) !=
+ loaded_mm->context.ctx_id);
+
+ if (this_cpu_read(cpu_tlbstate.is_lazy)) {
+ /*
+ * We're in lazy mode. We need to at least flush our
+ * paging-structure cache to avoid speculatively reading
+ * garbage into our TLB. Since switching to init_mm is barely
+ * slower than a minimal flush, just switch to init_mm.
+ */
+ switch_mm_irqs_off(NULL, &init_mm, NULL);
+ return;
+ }
+
+ if (unlikely(local_tlb_gen == mm_tlb_gen)) {
+ /*
+ * There's nothing to do: we're already up to date. This can
+ * happen if two concurrent flushes happen -- the first flush to
+ * be handled can catch us all the way up, leaving no work for
+ * the second flush.
+ */
+ trace_tlb_flush(reason, 0);
+ return;
+ }
+
+ WARN_ON_ONCE(local_tlb_gen > mm_tlb_gen);
+ WARN_ON_ONCE(f->new_tlb_gen > mm_tlb_gen);
+
+ /*
+ * If we get to this point, we know that our TLB is out of date.
+ * This does not strictly imply that we need to flush (it's
+ * possible that f->new_tlb_gen <= local_tlb_gen), but we're
+ * going to need to flush in the very near future, so we might
+ * as well get it over with.
+ *
+ * The only question is whether to do a full or partial flush.
+ *
+ * We do a partial flush if requested and two extra conditions
+ * are met:
+ *
+ * 1. f->new_tlb_gen == local_tlb_gen + 1. We have an invariant that
+ * we've always done all needed flushes to catch up to
+ * local_tlb_gen. If, for example, local_tlb_gen == 2 and
+ * f->new_tlb_gen == 3, then we know that the flush needed to bring
+ * us up to date for tlb_gen 3 is the partial flush we're
+ * processing.
+ *
+ * As an example of why this check is needed, suppose that there
+ * are two concurrent flushes. The first is a full flush that
+ * changes context.tlb_gen from 1 to 2. The second is a partial
+ * flush that changes context.tlb_gen from 2 to 3. If they get
+ * processed on this CPU in reverse order, we'll see
+ * local_tlb_gen == 1, mm_tlb_gen == 3, and end != TLB_FLUSH_ALL.
+ * If we were to use __flush_tlb_single() and set local_tlb_gen to
+ * 3, we'd be break the invariant: we'd update local_tlb_gen above
+ * 1 without the full flush that's needed for tlb_gen 2.
+ *
+ * 2. f->new_tlb_gen == mm_tlb_gen. This is purely an optimiation.
+ * Partial TLB flushes are not all that much cheaper than full TLB
+ * flushes, so it seems unlikely that it would be a performance win
+ * to do a partial flush if that won't bring our TLB fully up to
+ * date. By doing a full flush instead, we can increase
+ * local_tlb_gen all the way to mm_tlb_gen and we can probably
+ * avoid another flush in the very near future.
+ */
+ if (f->end != TLB_FLUSH_ALL &&
+ f->new_tlb_gen == local_tlb_gen + 1 &&
+ f->new_tlb_gen == mm_tlb_gen) {
+ /* Partial flush */
+ unsigned long addr;
+ unsigned long nr_pages = (f->end - f->start) >> PAGE_SHIFT;
+
+ addr = f->start;
+ while (addr < f->end) {
+ __flush_tlb_single(addr);
+ addr += PAGE_SIZE;
}
- } else
- leave_mm(smp_processor_id());
+ if (local)
+ count_vm_tlb_events(NR_TLB_LOCAL_FLUSH_ONE, nr_pages);
+ trace_tlb_flush(reason, nr_pages);
+ } else {
+ /* Full flush. */
+ local_flush_tlb();
+ if (local)
+ count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ALL);
+ trace_tlb_flush(reason, TLB_FLUSH_ALL);
+ }
+ /* Both paths above update our state to mm_tlb_gen. */
+ this_cpu_write(cpu_tlbstate.ctxs[loaded_mm_asid].tlb_gen, mm_tlb_gen);
}
-void native_flush_tlb_others(const struct cpumask *cpumask,
- struct mm_struct *mm, unsigned long start,
- unsigned long end)
+static void flush_tlb_func_local(void *info, enum tlb_flush_reason reason)
+{
+ const struct flush_tlb_info *f = info;
+
+ flush_tlb_func_common(f, true, reason);
+}
+
+static void flush_tlb_func_remote(void *info)
{
- struct flush_tlb_info info;
+ const struct flush_tlb_info *f = info;
- info.flush_mm = mm;
- info.flush_start = start;
- info.flush_end = end;
+ inc_irq_stat(irq_tlb_count);
+ if (f->mm && f->mm != this_cpu_read(cpu_tlbstate.loaded_mm))
+ return;
+
+ count_vm_tlb_event(NR_TLB_REMOTE_FLUSH_RECEIVED);
+ flush_tlb_func_common(f, false, TLB_REMOTE_SHOOTDOWN);
+}
+
+void native_flush_tlb_others(const struct cpumask *cpumask,
+ const struct flush_tlb_info *info)
+{
count_vm_tlb_event(NR_TLB_REMOTE_FLUSH);
- if (end == TLB_FLUSH_ALL)
+ if (info->end == TLB_FLUSH_ALL)
trace_tlb_flush(TLB_REMOTE_SEND_IPI, TLB_FLUSH_ALL);
else
trace_tlb_flush(TLB_REMOTE_SEND_IPI,
- (end - start) >> PAGE_SHIFT);
+ (info->end - info->start) >> PAGE_SHIFT);
if (is_uv_system()) {
+ /*
+ * This whole special case is confused. UV has a "Broadcast
+ * Assist Unit", which seems to be a fancy way to send IPIs.
+ * Back when x86 used an explicit TLB flush IPI, UV was
+ * optimized to use its own mechanism. These days, x86 uses
+ * smp_call_function_many(), but UV still uses a manual IPI,
+ * and that IPI's action is out of date -- it does a manual
+ * flush instead of calling flush_tlb_func_remote(). This
+ * means that the percpu tlb_gen variables won't be updated
+ * and we'll do pointless flushes on future context switches.
+ *
+ * Rather than hooking native_flush_tlb_others() here, I think
+ * that UV should be updated so that smp_call_function_many(),
+ * etc, are optimal on UV.
+ */
unsigned int cpu;
cpu = smp_processor_id();
- cpumask = uv_flush_tlb_others(cpumask, mm, start, end, cpu);
+ cpumask = uv_flush_tlb_others(cpumask, info);
if (cpumask)
- smp_call_function_many(cpumask, flush_tlb_func,
- &info, 1);
+ smp_call_function_many(cpumask, flush_tlb_func_remote,
+ (void *)info, 1);
return;
}
- smp_call_function_many(cpumask, flush_tlb_func, &info, 1);
+ smp_call_function_many(cpumask, flush_tlb_func_remote,
+ (void *)info, 1);
}
/*
@@ -302,91 +485,46 @@ static unsigned long tlb_single_page_flush_ceiling __read_mostly = 33;
void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start,
unsigned long end, unsigned long vmflag)
{
- unsigned long addr;
- /* do a global flush by default */
- unsigned long base_pages_to_flush = TLB_FLUSH_ALL;
+ int cpu;
- preempt_disable();
+ struct flush_tlb_info info = {
+ .mm = mm,
+ };
- if ((end != TLB_FLUSH_ALL) && !(vmflag & VM_HUGETLB))
- base_pages_to_flush = (end - start) >> PAGE_SHIFT;
- if (base_pages_to_flush > tlb_single_page_flush_ceiling)
- base_pages_to_flush = TLB_FLUSH_ALL;
+ cpu = get_cpu();
- if (current->active_mm != mm) {
- /* Synchronize with switch_mm. */
- smp_mb();
+ /* This is also a barrier that synchronizes with switch_mm(). */
+ info.new_tlb_gen = inc_mm_tlb_gen(mm);
- goto out;
- }
-
- if (!current->mm) {
- leave_mm(smp_processor_id());
-
- /* Synchronize with switch_mm. */
- smp_mb();
-
- goto out;
- }
-
- /*
- * Both branches below are implicit full barriers (MOV to CR or
- * INVLPG) that synchronize with switch_mm.
- */
- if (base_pages_to_flush == TLB_FLUSH_ALL) {
- count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ALL);
- local_flush_tlb();
+ /* Should we flush just the requested range? */
+ if ((end != TLB_FLUSH_ALL) &&
+ !(vmflag & VM_HUGETLB) &&
+ ((end - start) >> PAGE_SHIFT) <= tlb_single_page_flush_ceiling) {
+ info.start = start;
+ info.end = end;
} else {
- /* flush range by one by one 'invlpg' */
- for (addr = start; addr < end; addr += PAGE_SIZE) {
- count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ONE);
- __flush_tlb_single(addr);
- }
- }
- trace_tlb_flush(TLB_LOCAL_MM_SHOOTDOWN, base_pages_to_flush);
-out:
- if (base_pages_to_flush == TLB_FLUSH_ALL) {
- start = 0UL;
- end = TLB_FLUSH_ALL;
+ info.start = 0UL;
+ info.end = TLB_FLUSH_ALL;
}
- if (cpumask_any_but(mm_cpumask(mm), smp_processor_id()) < nr_cpu_ids)
- flush_tlb_others(mm_cpumask(mm), mm, start, end);
- preempt_enable();
-}
-
-void flush_tlb_page(struct vm_area_struct *vma, unsigned long start)
-{
- struct mm_struct *mm = vma->vm_mm;
-
- preempt_disable();
-
- if (current->active_mm == mm) {
- if (current->mm) {
- /*
- * Implicit full barrier (INVLPG) that synchronizes
- * with switch_mm.
- */
- __flush_tlb_one(start);
- } else {
- leave_mm(smp_processor_id());
- /* Synchronize with switch_mm. */
- smp_mb();
- }
+ if (mm == this_cpu_read(cpu_tlbstate.loaded_mm)) {
+ VM_WARN_ON(irqs_disabled());
+ local_irq_disable();
+ flush_tlb_func_local(&info, TLB_LOCAL_MM_SHOOTDOWN);
+ local_irq_enable();
}
- if (cpumask_any_but(mm_cpumask(mm), smp_processor_id()) < nr_cpu_ids)
- flush_tlb_others(mm_cpumask(mm), mm, start, start + PAGE_SIZE);
+ if (cpumask_any_but(mm_cpumask(mm), cpu) < nr_cpu_ids)
+ flush_tlb_others(mm_cpumask(mm), &info);
- preempt_enable();
+ put_cpu();
}
+
static void do_flush_tlb_all(void *info)
{
count_vm_tlb_event(NR_TLB_REMOTE_FLUSH_RECEIVED);
__flush_tlb_all();
- if (this_cpu_read(cpu_tlbstate.state) == TLBSTATE_LAZY)
- leave_mm(smp_processor_id());
}
void flush_tlb_all(void)
@@ -401,7 +539,7 @@ static void do_kernel_range_flush(void *info)
unsigned long addr;
/* flush range by one by one 'invlpg' */
- for (addr = f->flush_start; addr < f->flush_end; addr += PAGE_SIZE)
+ for (addr = f->start; addr < f->end; addr += PAGE_SIZE)
__flush_tlb_single(addr);
}
@@ -410,16 +548,41 @@ void flush_tlb_kernel_range(unsigned long start, unsigned long end)
/* Balance as user space task's flush, a bit conservative */
if (end == TLB_FLUSH_ALL ||
- (end - start) > tlb_single_page_flush_ceiling * PAGE_SIZE) {
+ (end - start) > tlb_single_page_flush_ceiling << PAGE_SHIFT) {
on_each_cpu(do_flush_tlb_all, NULL, 1);
} else {
struct flush_tlb_info info;
- info.flush_start = start;
- info.flush_end = end;
+ info.start = start;
+ info.end = end;
on_each_cpu(do_kernel_range_flush, &info, 1);
}
}
+void arch_tlbbatch_flush(struct arch_tlbflush_unmap_batch *batch)
+{
+ struct flush_tlb_info info = {
+ .mm = NULL,
+ .start = 0UL,
+ .end = TLB_FLUSH_ALL,
+ };
+
+ int cpu = get_cpu();
+
+ if (cpumask_test_cpu(cpu, &batch->cpumask)) {
+ VM_WARN_ON(irqs_disabled());
+ local_irq_disable();
+ flush_tlb_func_local(&info, TLB_LOCAL_SHOOTDOWN);
+ local_irq_enable();
+ }
+
+ if (cpumask_any_but(&batch->cpumask, cpu) < nr_cpu_ids)
+ flush_tlb_others(&batch->cpumask, &info);
+
+ cpumask_clear(&batch->cpumask);
+
+ put_cpu();
+}
+
static ssize_t tlbflush_read_file(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
@@ -465,5 +628,3 @@ static int __init create_tlb_single_page_flush_ceiling(void)
return 0;
}
late_initcall(create_tlb_single_page_flush_ceiling);
-
-#endif /* CONFIG_SMP */
diff --git a/arch/x86/net/Makefile b/arch/x86/net/Makefile
index 90568c33ddb0..fefb4b619598 100644
--- a/arch/x86/net/Makefile
+++ b/arch/x86/net/Makefile
@@ -1,4 +1,6 @@
#
# Arch-specific network modules
#
+OBJECT_FILES_NON_STANDARD_bpf_jit.o += y
+
obj-$(CONFIG_BPF_JIT) += bpf_jit.o bpf_jit_comp.o
diff --git a/arch/x86/net/bpf_jit.S b/arch/x86/net/bpf_jit.S
index f2a7faf4706e..b33093f84528 100644
--- a/arch/x86/net/bpf_jit.S
+++ b/arch/x86/net/bpf_jit.S
@@ -19,9 +19,6 @@
*/
#define SKBDATA %r10
#define SKF_MAX_NEG_OFF $(-0x200000) /* SKF_LL_OFF from filter.h */
-#define MAX_BPF_STACK (512 /* from filter.h */ + \
- 32 /* space for rbx,r13,r14,r15 */ + \
- 8 /* space for skb_copy_bits */)
#define FUNC(name) \
.globl name; \
@@ -66,7 +63,7 @@ FUNC(sk_load_byte_positive_offset)
/* rsi contains offset and can be scratched */
#define bpf_slow_path_common(LEN) \
- lea -MAX_BPF_STACK + 32(%rbp), %rdx;\
+ lea 32(%rbp), %rdx;\
FRAME_BEGIN; \
mov %rbx, %rdi; /* arg1 == skb */ \
push %r9; \
@@ -83,14 +80,14 @@ FUNC(sk_load_byte_positive_offset)
bpf_slow_path_word:
bpf_slow_path_common(4)
js bpf_error
- mov - MAX_BPF_STACK + 32(%rbp),%eax
+ mov 32(%rbp),%eax
bswap %eax
ret
bpf_slow_path_half:
bpf_slow_path_common(2)
js bpf_error
- mov - MAX_BPF_STACK + 32(%rbp),%ax
+ mov 32(%rbp),%ax
rol $8,%ax
movzwl %ax,%eax
ret
@@ -98,7 +95,7 @@ bpf_slow_path_half:
bpf_slow_path_byte:
bpf_slow_path_common(1)
js bpf_error
- movzbl - MAX_BPF_STACK + 32(%rbp),%eax
+ movzbl 32(%rbp),%eax
ret
#define sk_negative_common(SIZE) \
@@ -148,9 +145,10 @@ FUNC(sk_load_byte_negative_offset)
bpf_error:
# force a return 0 from jit handler
xor %eax,%eax
- mov - MAX_BPF_STACK(%rbp),%rbx
- mov - MAX_BPF_STACK + 8(%rbp),%r13
- mov - MAX_BPF_STACK + 16(%rbp),%r14
- mov - MAX_BPF_STACK + 24(%rbp),%r15
+ mov (%rbp),%rbx
+ mov 8(%rbp),%r13
+ mov 16(%rbp),%r14
+ mov 24(%rbp),%r15
+ add $40, %rbp
leaveq
ret
diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index f58939393eef..0554e8aef4d5 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -94,7 +94,9 @@ static int bpf_size_to_x86_bytes(int bpf_size)
#define X86_JNE 0x75
#define X86_JBE 0x76
#define X86_JA 0x77
+#define X86_JL 0x7C
#define X86_JGE 0x7D
+#define X86_JLE 0x7E
#define X86_JG 0x7F
static void bpf_flush_icache(void *start, void *end)
@@ -197,17 +199,16 @@ struct jit_context {
#define BPF_MAX_INSN_SIZE 128
#define BPF_INSN_SAFETY 64
-#define STACKSIZE \
- (MAX_BPF_STACK + \
- 32 /* space for rbx, r13, r14, r15 */ + \
+#define AUX_STACK_SPACE \
+ (32 /* space for rbx, r13, r14, r15 */ + \
8 /* space for skb_copy_bits() buffer */)
-#define PROLOGUE_SIZE 48
+#define PROLOGUE_SIZE 37
/* emit x64 prologue code for BPF program and check it's size.
* bpf_tail_call helper will skip it while jumping into another program
*/
-static void emit_prologue(u8 **pprog)
+static void emit_prologue(u8 **pprog, u32 stack_depth)
{
u8 *prog = *pprog;
int cnt = 0;
@@ -215,13 +216,17 @@ static void emit_prologue(u8 **pprog)
EMIT1(0x55); /* push rbp */
EMIT3(0x48, 0x89, 0xE5); /* mov rbp,rsp */
- /* sub rsp, STACKSIZE */
- EMIT3_off32(0x48, 0x81, 0xEC, STACKSIZE);
+ /* sub rsp, rounded_stack_depth + AUX_STACK_SPACE */
+ EMIT3_off32(0x48, 0x81, 0xEC,
+ round_up(stack_depth, 8) + AUX_STACK_SPACE);
+
+ /* sub rbp, AUX_STACK_SPACE */
+ EMIT4(0x48, 0x83, 0xED, AUX_STACK_SPACE);
/* all classic BPF filters use R6(rbx) save it */
- /* mov qword ptr [rbp-X],rbx */
- EMIT3_off32(0x48, 0x89, 0x9D, -STACKSIZE);
+ /* mov qword ptr [rbp+0],rbx */
+ EMIT4(0x48, 0x89, 0x5D, 0);
/* bpf_convert_filter() maps classic BPF register X to R7 and uses R8
* as temporary, so all tcpdump filters need to spill/fill R7(r13) and
@@ -231,12 +236,12 @@ static void emit_prologue(u8 **pprog)
* than synthetic ones. Therefore not worth adding complexity.
*/
- /* mov qword ptr [rbp-X],r13 */
- EMIT3_off32(0x4C, 0x89, 0xAD, -STACKSIZE + 8);
- /* mov qword ptr [rbp-X],r14 */
- EMIT3_off32(0x4C, 0x89, 0xB5, -STACKSIZE + 16);
- /* mov qword ptr [rbp-X],r15 */
- EMIT3_off32(0x4C, 0x89, 0xBD, -STACKSIZE + 24);
+ /* mov qword ptr [rbp+8],r13 */
+ EMIT4(0x4C, 0x89, 0x6D, 8);
+ /* mov qword ptr [rbp+16],r14 */
+ EMIT4(0x4C, 0x89, 0x75, 16);
+ /* mov qword ptr [rbp+24],r15 */
+ EMIT4(0x4C, 0x89, 0x7D, 24);
/* Clear the tail call counter (tail_call_cnt): for eBPF tail calls
* we need to reset the counter to 0. It's done in two instructions,
@@ -246,8 +251,8 @@ static void emit_prologue(u8 **pprog)
/* xor eax, eax */
EMIT2(0x31, 0xc0);
- /* mov qword ptr [rbp-X], rax */
- EMIT3_off32(0x48, 0x89, 0x85, -STACKSIZE + 32);
+ /* mov qword ptr [rbp+32], rax */
+ EMIT4(0x48, 0x89, 0x45, 32);
BUILD_BUG_ON(cnt != PROLOGUE_SIZE);
*pprog = prog;
@@ -279,33 +284,32 @@ static void emit_bpf_tail_call(u8 **pprog)
/* if (index >= array->map.max_entries)
* goto out;
*/
- EMIT4(0x48, 0x8B, 0x46, /* mov rax, qword ptr [rsi + 16] */
+ EMIT2(0x89, 0xD2); /* mov edx, edx */
+ EMIT3(0x39, 0x56, /* cmp dword ptr [rsi + 16], edx */
offsetof(struct bpf_array, map.max_entries));
- EMIT3(0x48, 0x39, 0xD0); /* cmp rax, rdx */
-#define OFFSET1 47 /* number of bytes to jump */
+#define OFFSET1 43 /* number of bytes to jump */
EMIT2(X86_JBE, OFFSET1); /* jbe out */
label1 = cnt;
/* if (tail_call_cnt > MAX_TAIL_CALL_CNT)
* goto out;
*/
- EMIT2_off32(0x8B, 0x85, -STACKSIZE + 36); /* mov eax, dword ptr [rbp - 516] */
+ EMIT2_off32(0x8B, 0x85, 36); /* mov eax, dword ptr [rbp + 36] */
EMIT3(0x83, 0xF8, MAX_TAIL_CALL_CNT); /* cmp eax, MAX_TAIL_CALL_CNT */
-#define OFFSET2 36
+#define OFFSET2 32
EMIT2(X86_JA, OFFSET2); /* ja out */
label2 = cnt;
EMIT3(0x83, 0xC0, 0x01); /* add eax, 1 */
- EMIT2_off32(0x89, 0x85, -STACKSIZE + 36); /* mov dword ptr [rbp - 516], eax */
+ EMIT2_off32(0x89, 0x85, 36); /* mov dword ptr [rbp + 36], eax */
/* prog = array->ptrs[index]; */
- EMIT4_off32(0x48, 0x8D, 0x84, 0xD6, /* lea rax, [rsi + rdx * 8 + offsetof(...)] */
+ EMIT4_off32(0x48, 0x8B, 0x84, 0xD6, /* mov rax, [rsi + rdx * 8 + offsetof(...)] */
offsetof(struct bpf_array, ptrs));
- EMIT3(0x48, 0x8B, 0x00); /* mov rax, qword ptr [rax] */
/* if (prog == NULL)
* goto out;
*/
- EMIT4(0x48, 0x83, 0xF8, 0x00); /* cmp rax, 0 */
+ EMIT3(0x48, 0x85, 0xC0); /* test rax,rax */
#define OFFSET3 10
EMIT2(X86_JE, OFFSET3); /* je out */
label3 = cnt;
@@ -361,7 +365,7 @@ static int do_jit(struct bpf_prog *bpf_prog, int *addrs, u8 *image,
int proglen = 0;
u8 *prog = temp;
- emit_prologue(&prog);
+ emit_prologue(&prog, bpf_prog->aux->stack_depth);
if (seen_ld_abs)
emit_load_skb_data_hlen(&prog);
@@ -877,7 +881,7 @@ xadd: if (is_imm8(insn->off))
}
break;
- case BPF_JMP | BPF_CALL | BPF_X:
+ case BPF_JMP | BPF_TAIL_CALL:
emit_bpf_tail_call(&prog);
break;
@@ -885,9 +889,13 @@ xadd: if (is_imm8(insn->off))
case BPF_JMP | BPF_JEQ | BPF_X:
case BPF_JMP | BPF_JNE | BPF_X:
case BPF_JMP | BPF_JGT | BPF_X:
+ case BPF_JMP | BPF_JLT | BPF_X:
case BPF_JMP | BPF_JGE | BPF_X:
+ case BPF_JMP | BPF_JLE | BPF_X:
case BPF_JMP | BPF_JSGT | BPF_X:
+ case BPF_JMP | BPF_JSLT | BPF_X:
case BPF_JMP | BPF_JSGE | BPF_X:
+ case BPF_JMP | BPF_JSLE | BPF_X:
/* cmp dst_reg, src_reg */
EMIT3(add_2mod(0x48, dst_reg, src_reg), 0x39,
add_2reg(0xC0, dst_reg, src_reg));
@@ -908,9 +916,13 @@ xadd: if (is_imm8(insn->off))
case BPF_JMP | BPF_JEQ | BPF_K:
case BPF_JMP | BPF_JNE | BPF_K:
case BPF_JMP | BPF_JGT | BPF_K:
+ case BPF_JMP | BPF_JLT | BPF_K:
case BPF_JMP | BPF_JGE | BPF_K:
+ case BPF_JMP | BPF_JLE | BPF_K:
case BPF_JMP | BPF_JSGT | BPF_K:
+ case BPF_JMP | BPF_JSLT | BPF_K:
case BPF_JMP | BPF_JSGE | BPF_K:
+ case BPF_JMP | BPF_JSLE | BPF_K:
/* cmp dst_reg, imm8/32 */
EMIT1(add_1mod(0x48, dst_reg));
@@ -932,18 +944,34 @@ emit_cond_jmp: /* convert BPF opcode to x86 */
/* GT is unsigned '>', JA in x86 */
jmp_cond = X86_JA;
break;
+ case BPF_JLT:
+ /* LT is unsigned '<', JB in x86 */
+ jmp_cond = X86_JB;
+ break;
case BPF_JGE:
/* GE is unsigned '>=', JAE in x86 */
jmp_cond = X86_JAE;
break;
+ case BPF_JLE:
+ /* LE is unsigned '<=', JBE in x86 */
+ jmp_cond = X86_JBE;
+ break;
case BPF_JSGT:
/* signed '>', GT in x86 */
jmp_cond = X86_JG;
break;
+ case BPF_JSLT:
+ /* signed '<', LT in x86 */
+ jmp_cond = X86_JL;
+ break;
case BPF_JSGE:
/* signed '>=', GE in x86 */
jmp_cond = X86_JGE;
break;
+ case BPF_JSLE:
+ /* signed '<=', LE in x86 */
+ jmp_cond = X86_JLE;
+ break;
default: /* to silence gcc warning */
return -EFAULT;
}
@@ -1036,15 +1064,17 @@ common_load:
seen_exit = true;
/* update cleanup_addr */
ctx->cleanup_addr = proglen;
- /* mov rbx, qword ptr [rbp-X] */
- EMIT3_off32(0x48, 0x8B, 0x9D, -STACKSIZE);
- /* mov r13, qword ptr [rbp-X] */
- EMIT3_off32(0x4C, 0x8B, 0xAD, -STACKSIZE + 8);
- /* mov r14, qword ptr [rbp-X] */
- EMIT3_off32(0x4C, 0x8B, 0xB5, -STACKSIZE + 16);
- /* mov r15, qword ptr [rbp-X] */
- EMIT3_off32(0x4C, 0x8B, 0xBD, -STACKSIZE + 24);
-
+ /* mov rbx, qword ptr [rbp+0] */
+ EMIT4(0x48, 0x8B, 0x5D, 0);
+ /* mov r13, qword ptr [rbp+8] */
+ EMIT4(0x4C, 0x8B, 0x6D, 8);
+ /* mov r14, qword ptr [rbp+16] */
+ EMIT4(0x4C, 0x8B, 0x75, 16);
+ /* mov r15, qword ptr [rbp+24] */
+ EMIT4(0x4C, 0x8B, 0x7D, 24);
+
+ /* add rbp, AUX_STACK_SPACE */
+ EMIT4(0x48, 0x83, 0xC5, AUX_STACK_SPACE);
EMIT1(0xC9); /* leave */
EMIT1(0xC3); /* ret */
break;
@@ -1162,6 +1192,7 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
bpf_jit_binary_lock_ro(header);
prog->bpf_func = (void *)image;
prog->jited = 1;
+ prog->jited_len = proglen;
} else {
prog = orig_prog;
}
diff --git a/arch/x86/pci/ce4100.c b/arch/x86/pci/ce4100.c
index b914e20b5a00..3353b76dcff0 100644
--- a/arch/x86/pci/ce4100.c
+++ b/arch/x86/pci/ce4100.c
@@ -65,6 +65,9 @@ struct sim_reg_op {
{ PCI_DEVFN(device, func), offset, init_op, read_op, write_op,\
{0, SIZE_TO_MASK(size)} },
+/*
+ * All read/write functions are called with pci_config_lock held.
+ */
static void reg_init(struct sim_dev_reg *reg)
{
pci_direct_conf1.read(0, 1, reg->dev_func, reg->reg, 4,
@@ -73,21 +76,13 @@ static void reg_init(struct sim_dev_reg *reg)
static void reg_read(struct sim_dev_reg *reg, u32 *value)
{
- unsigned long flags;
-
- raw_spin_lock_irqsave(&pci_config_lock, flags);
*value = reg->sim_reg.value;
- raw_spin_unlock_irqrestore(&pci_config_lock, flags);
}
static void reg_write(struct sim_dev_reg *reg, u32 value)
{
- unsigned long flags;
-
- raw_spin_lock_irqsave(&pci_config_lock, flags);
reg->sim_reg.value = (value & reg->sim_reg.mask) |
(reg->sim_reg.value & ~reg->sim_reg.mask);
- raw_spin_unlock_irqrestore(&pci_config_lock, flags);
}
static void sata_reg_init(struct sim_dev_reg *reg)
@@ -117,12 +112,8 @@ static void sata_revid_read(struct sim_dev_reg *reg, u32 *value)
static void reg_noirq_read(struct sim_dev_reg *reg, u32 *value)
{
- unsigned long flags;
-
- raw_spin_lock_irqsave(&pci_config_lock, flags);
/* force interrupt pin value to 0 */
*value = reg->sim_reg.value & 0xfff00ff;
- raw_spin_unlock_irqrestore(&pci_config_lock, flags);
}
static struct sim_dev_reg bus1_fixups[] = {
@@ -265,24 +256,33 @@ int bridge_read(unsigned int devfn, int reg, int len, u32 *value)
return retval;
}
-static int ce4100_conf_read(unsigned int seg, unsigned int bus,
- unsigned int devfn, int reg, int len, u32 *value)
+static int ce4100_bus1_read(unsigned int devfn, int reg, int len, u32 *value)
{
+ unsigned long flags;
int i;
- WARN_ON(seg);
- if (bus == 1) {
- for (i = 0; i < ARRAY_SIZE(bus1_fixups); i++) {
- if (bus1_fixups[i].dev_func == devfn &&
- bus1_fixups[i].reg == (reg & ~3) &&
- bus1_fixups[i].read) {
- bus1_fixups[i].read(&(bus1_fixups[i]),
- value);
- extract_bytes(value, reg, len);
- return 0;
- }
+ for (i = 0; i < ARRAY_SIZE(bus1_fixups); i++) {
+ if (bus1_fixups[i].dev_func == devfn &&
+ bus1_fixups[i].reg == (reg & ~3) &&
+ bus1_fixups[i].read) {
+
+ raw_spin_lock_irqsave(&pci_config_lock, flags);
+ bus1_fixups[i].read(&(bus1_fixups[i]), value);
+ raw_spin_unlock_irqrestore(&pci_config_lock, flags);
+ extract_bytes(value, reg, len);
+ return 0;
}
}
+ return -1;
+}
+
+static int ce4100_conf_read(unsigned int seg, unsigned int bus,
+ unsigned int devfn, int reg, int len, u32 *value)
+{
+ WARN_ON(seg);
+
+ if (bus == 1 && !ce4100_bus1_read(devfn, reg, len, value))
+ return 0;
if (bus == 0 && (PCI_DEVFN(1, 0) == devfn) &&
!bridge_read(devfn, reg, len, value))
@@ -291,23 +291,32 @@ static int ce4100_conf_read(unsigned int seg, unsigned int bus,
return pci_direct_conf1.read(seg, bus, devfn, reg, len, value);
}
-static int ce4100_conf_write(unsigned int seg, unsigned int bus,
- unsigned int devfn, int reg, int len, u32 value)
+static int ce4100_bus1_write(unsigned int devfn, int reg, int len, u32 value)
{
+ unsigned long flags;
int i;
- WARN_ON(seg);
- if (bus == 1) {
- for (i = 0; i < ARRAY_SIZE(bus1_fixups); i++) {
- if (bus1_fixups[i].dev_func == devfn &&
- bus1_fixups[i].reg == (reg & ~3) &&
- bus1_fixups[i].write) {
- bus1_fixups[i].write(&(bus1_fixups[i]),
- value);
- return 0;
- }
+ for (i = 0; i < ARRAY_SIZE(bus1_fixups); i++) {
+ if (bus1_fixups[i].dev_func == devfn &&
+ bus1_fixups[i].reg == (reg & ~3) &&
+ bus1_fixups[i].write) {
+
+ raw_spin_lock_irqsave(&pci_config_lock, flags);
+ bus1_fixups[i].write(&(bus1_fixups[i]), value);
+ raw_spin_unlock_irqrestore(&pci_config_lock, flags);
+ return 0;
}
}
+ return -1;
+}
+
+static int ce4100_conf_write(unsigned int seg, unsigned int bus,
+ unsigned int devfn, int reg, int len, u32 value)
+{
+ WARN_ON(seg);
+
+ if (bus == 1 && !ce4100_bus1_write(devfn, reg, len, value))
+ return 0;
/* Discard writes to A/V bridge BAR. */
if (bus == 0 && PCI_DEVFN(1, 0) == devfn &&
@@ -318,8 +327,8 @@ static int ce4100_conf_write(unsigned int seg, unsigned int bus,
}
static const struct pci_raw_ops ce4100_pci_conf = {
- .read = ce4100_conf_read,
- .write = ce4100_conf_write,
+ .read = ce4100_conf_read,
+ .write = ce4100_conf_write,
};
int __init ce4100_pci_init(void)
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 190e718694b1..7a5350d08cef 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -24,7 +24,6 @@ unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 |
unsigned int pci_early_dump_regs;
static int pci_bf_sort;
-static int smbios_type_b1_flag;
int pci_routeirq;
int noioapicquirk;
#ifdef CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS
@@ -75,8 +74,8 @@ struct pci_ops pci_root_ops = {
};
/*
- * This interrupt-safe spinlock protects all accesses to PCI
- * configuration space.
+ * This interrupt-safe spinlock protects all accesses to PCI configuration
+ * space, except for the mmconfig (ECAM) based operations.
*/
DEFINE_RAW_SPINLOCK(pci_config_lock);
@@ -197,34 +196,18 @@ static int __init set_bf_sort(const struct dmi_system_id *d)
static void __init read_dmi_type_b1(const struct dmi_header *dm,
void *private_data)
{
- u8 *d = (u8 *)dm + 4;
+ u8 *data = (u8 *)dm + 4;
if (dm->type != 0xB1)
return;
- switch (((*(u32 *)d) >> 9) & 0x03) {
- case 0x00:
- printk(KERN_INFO "dmi type 0xB1 record - unknown flag\n");
- break;
- case 0x01: /* set pci=bfsort */
- smbios_type_b1_flag = 1;
- break;
- case 0x02: /* do not set pci=bfsort */
- smbios_type_b1_flag = 2;
- break;
- default:
- break;
- }
+ if ((((*(u32 *)data) >> 9) & 0x03) == 0x01)
+ set_bf_sort((const struct dmi_system_id *)private_data);
}
static int __init find_sort_method(const struct dmi_system_id *d)
{
- dmi_walk(read_dmi_type_b1, NULL);
-
- if (smbios_type_b1_flag == 1) {
- set_bf_sort(d);
- return 0;
- }
- return -1;
+ dmi_walk(read_dmi_type_b1, (void *)d);
+ return 0;
}
/*
@@ -691,7 +674,7 @@ int pcibios_add_device(struct pci_dev *dev)
pa_data = boot_params.hdr.setup_data;
while (pa_data) {
- data = ioremap(pa_data, sizeof(*rom));
+ data = memremap(pa_data, sizeof(*rom), MEMREMAP_WB);
if (!data)
return -ENOMEM;
@@ -710,7 +693,7 @@ int pcibios_add_device(struct pci_dev *dev)
}
}
pa_data = data->next;
- iounmap(data);
+ memunmap(data);
}
set_dma_domain_ops(dev);
set_dev_domain_options(dev);
diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index 6d52b94f4bb9..f2228b150faa 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -571,3 +571,67 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2fc0, pci_invalid_bar);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6f60, pci_invalid_bar);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fa0, pci_invalid_bar);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fc0, pci_invalid_bar);
+
+/*
+ * Device [1022:7808]
+ * 23. USB Wake on Connect/Disconnect with Low Speed Devices
+ * https://support.amd.com/TechDocs/46837.pdf
+ * Appendix A2
+ * https://support.amd.com/TechDocs/42413.pdf
+ */
+static void pci_fixup_amd_ehci_pme(struct pci_dev *dev)
+{
+ dev_info(&dev->dev, "PME# does not work under D3, disabling it\n");
+ dev->pme_support &= ~((PCI_PM_CAP_PME_D3 | PCI_PM_CAP_PME_D3cold)
+ >> PCI_PM_CAP_PME_SHIFT);
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x7808, pci_fixup_amd_ehci_pme);
+
+/*
+ * Apple MacBook Pro: Avoid [mem 0x7fa00000-0x7fbfffff]
+ *
+ * Using the [mem 0x7fa00000-0x7fbfffff] region, e.g., by assigning it to
+ * the 00:1c.0 Root Port, causes a conflict with [io 0x1804], which is used
+ * for soft poweroff and suspend-to-RAM.
+ *
+ * As far as we know, this is related to the address space, not to the Root
+ * Port itself. Attaching the quirk to the Root Port is a convenience, but
+ * it could probably also be a standalone DMI quirk.
+ *
+ * https://bugzilla.kernel.org/show_bug.cgi?id=103211
+ */
+static void quirk_apple_mbp_poweroff(struct pci_dev *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct resource *res;
+
+ if ((!dmi_match(DMI_PRODUCT_NAME, "MacBookPro11,4") &&
+ !dmi_match(DMI_PRODUCT_NAME, "MacBookPro11,5")) ||
+ pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x1c, 0))
+ return;
+
+ res = request_mem_region(0x7fa00000, 0x200000,
+ "MacBook Pro poweroff workaround");
+ if (res)
+ dev_info(dev, "claimed %s %pR\n", res->name, res);
+ else
+ dev_info(dev, "can't work around MacBook Pro poweroff issue\n");
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x8c10, quirk_apple_mbp_poweroff);
+
+/*
+ * VMD-enabled root ports will change the source ID for all messages
+ * to the VMD device. Rather than doing device matching with the source
+ * ID, the AER driver should traverse the child device tree, reading
+ * AER registers to find the faulting device.
+ */
+static void quirk_no_aersid(struct pci_dev *pdev)
+{
+ /* VMD Domain */
+ if (is_vmd(pdev->bus))
+ pdev->bus->bus_flags |= PCI_BUS_FLAGS_NO_AERSID;
+}
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2030, quirk_no_aersid);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2031, quirk_no_aersid);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2032, quirk_no_aersid);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2033, quirk_no_aersid);
diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c
index 5a18aedcb341..b901ece278dd 100644
--- a/arch/x86/pci/intel_mid_pci.c
+++ b/arch/x86/pci/intel_mid_pci.c
@@ -215,16 +215,23 @@ static int intel_mid_pci_irq_enable(struct pci_dev *dev)
struct irq_alloc_info info;
int polarity;
int ret;
+ u8 gsi;
if (dev->irq_managed && dev->irq > 0)
return 0;
+ ret = pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &gsi);
+ if (ret < 0) {
+ dev_warn(&dev->dev, "Failed to read interrupt line: %d\n", ret);
+ return ret;
+ }
+
switch (intel_mid_identify_cpu()) {
case INTEL_MID_CPU_CHIP_TANGIER:
polarity = IOAPIC_POL_HIGH;
/* Special treatment for IRQ0 */
- if (dev->irq == 0) {
+ if (gsi == 0) {
/*
* Skip HS UART common registers device since it has
* IRQ0 assigned and not used by the kernel.
@@ -253,10 +260,11 @@ static int intel_mid_pci_irq_enable(struct pci_dev *dev)
* MRST only have IOAPIC, the PCI irq lines are 1:1 mapped to
* IOAPIC RTE entries, so we just enable RTE for the device.
*/
- ret = mp_map_gsi_to_irq(dev->irq, IOAPIC_MAP_ALLOC, &info);
+ ret = mp_map_gsi_to_irq(gsi, IOAPIC_MAP_ALLOC, &info);
if (ret < 0)
return ret;
+ dev->irq = ret;
dev->irq_managed = 1;
return 0;
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 9bd115484745..0f5f60b14f48 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -1092,7 +1092,7 @@ static int __init fix_acer_tm360_irqrouting(const struct dmi_system_id *d)
return 0;
}
-static struct dmi_system_id __initdata pciirq_dmi_table[] = {
+static const struct dmi_system_id pciirq_dmi_table[] __initconst = {
{
.callback = fix_broken_hp_bios_irq9,
.ident = "HP Pavilion N5400 Series Laptop",
diff --git a/arch/x86/pci/legacy.c b/arch/x86/pci/legacy.c
index ea6f3802c17b..1cb01abcb1be 100644
--- a/arch/x86/pci/legacy.c
+++ b/arch/x86/pci/legacy.c
@@ -24,12 +24,10 @@ static void pcibios_fixup_peer_bridges(void)
int __init pci_legacy_init(void)
{
- if (!raw_pci_ops) {
- printk("PCI: System does not support PCI\n");
- return 0;
- }
+ if (!raw_pci_ops)
+ return 1;
- printk("PCI: Probing PCI hardware\n");
+ pr_info("PCI: Probing PCI hardware\n");
pcibios_scan_root(0);
return 0;
}
@@ -46,7 +44,7 @@ void pcibios_scan_specific_bus(int busn)
if (!raw_pci_read(0, busn, devfn, PCI_VENDOR_ID, 2, &l) &&
l != 0x0000 && l != 0xffff) {
DBG("Found device at %02x:%02x [%04x]\n", busn, devfn, l);
- printk(KERN_INFO "PCI: Discovered peer bus %02x\n", busn);
+ pr_info("PCI: Discovered peer bus %02x\n", busn);
pcibios_scan_root(busn);
return;
}
@@ -60,8 +58,12 @@ static int __init pci_subsys_init(void)
* The init function returns an non zero value when
* pci_legacy_init should be invoked.
*/
- if (x86_init.pci.init())
- pci_legacy_init();
+ if (x86_init.pci.init()) {
+ if (pci_legacy_init()) {
+ pr_info("PCI: System does not support PCI\n");
+ return -ENODEV;
+ }
+ }
pcibios_fixup_peer_bridges();
x86_init.pci.init_irq();
diff --git a/arch/x86/pci/pcbios.c b/arch/x86/pci/pcbios.c
index c1bdb9edcae7..76595408ff53 100644
--- a/arch/x86/pci/pcbios.c
+++ b/arch/x86/pci/pcbios.c
@@ -46,7 +46,7 @@ static inline void set_bios_x(void)
pcibios_enabled = 1;
set_memory_x(PAGE_OFFSET + BIOS_BEGIN, (BIOS_END - BIOS_BEGIN) >> PAGE_SHIFT);
if (__supported_pte_mask & _PAGE_NX)
- printk(KERN_INFO "PCI : PCI BIOS area is rw and x. Use pci=nobios if you want it NX.\n");
+ printk(KERN_INFO "PCI: PCI BIOS area is rw and x. Use pci=nobios if you want it NX.\n");
}
/*
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index ec008e800b45..53d600217973 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -26,6 +26,7 @@
#include <linux/pci_ids.h>
#include <linux/export.h>
#include <linux/list.h>
+#include <asm/iommu.h>
#define STA2X11_SWIOTLB_SIZE (4*1024*1024)
extern int swiotlb_late_init_with_default_size(size_t default_size);
@@ -191,7 +192,7 @@ static const struct dma_map_ops sta2x11_dma_ops = {
.sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
.sync_sg_for_device = swiotlb_sync_sg_for_device,
.mapping_error = swiotlb_dma_mapping_error,
- .dma_supported = NULL, /* FIXME: we should use this instead! */
+ .dma_supported = x86_dma_supported,
};
/* At setup time, we use our own ops if the device is a ConneXt one */
diff --git a/arch/x86/platform/efi/Makefile b/arch/x86/platform/efi/Makefile
index f1d83b34c329..2f56e1ed61c3 100644
--- a/arch/x86/platform/efi/Makefile
+++ b/arch/x86/platform/efi/Makefile
@@ -1,4 +1,5 @@
OBJECT_FILES_NON_STANDARD_efi_thunk_$(BITS).o := y
+OBJECT_FILES_NON_STANDARD_efi_stub_$(BITS).o := y
obj-$(CONFIG_EFI) += quirks.o efi.o efi_$(BITS).o efi_stub_$(BITS).o
obj-$(CONFIG_EARLY_PRINTK_EFI) += early_printk.o
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 43b96f5f78ba..928b6dceeca0 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -1014,7 +1014,6 @@ static void __init __efi_enter_virtual_mode(void)
* necessary relocation fixups for the new virtual addresses.
*/
efi_runtime_update_mappings();
- efi_dump_pagetable();
/* clean DUMMY object */
efi_delete_dummy_variable();
@@ -1029,25 +1028,8 @@ void __init efi_enter_virtual_mode(void)
kexec_enter_virtual_mode();
else
__efi_enter_virtual_mode();
-}
-
-/*
- * Convenience functions to obtain memory types and attributes
- */
-u32 efi_mem_type(unsigned long phys_addr)
-{
- efi_memory_desc_t *md;
- if (!efi_enabled(EFI_MEMMAP))
- return 0;
-
- for_each_efi_memory_desc(md) {
- if ((md->phys_addr <= phys_addr) &&
- (phys_addr < (md->phys_addr +
- (md->num_pages << EFI_PAGE_SHIFT))))
- return md->type;
- }
- return 0;
+ efi_dump_pagetable();
}
static int __init arch_parse_efi_cmdline(char *str)
diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
index 3481268da3d0..52f7faa1538f 100644
--- a/arch/x86/platform/efi/efi_32.c
+++ b/arch/x86/platform/efi/efi_32.c
@@ -44,7 +44,14 @@ int __init efi_alloc_page_tables(void)
}
void efi_sync_low_kernel_mappings(void) {}
-void __init efi_dump_pagetable(void) {}
+
+void __init efi_dump_pagetable(void)
+{
+#ifdef CONFIG_EFI_PGT_DUMP
+ ptdump_walk_pgd_level(NULL, swapper_pg_dir);
+#endif
+}
+
int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages)
{
return 0;
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index eb8dff15a7f6..12e83888e5b9 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -80,7 +80,7 @@ pgd_t * __init efi_call_phys_prolog(void)
int n_pgds, i, j;
if (!efi_enabled(EFI_OLD_MEMMAP)) {
- save_pgd = (pgd_t *)read_cr3();
+ save_pgd = (pgd_t *)__read_cr3();
write_cr3((unsigned long)efi_scratch.efi_pgt);
goto out;
}
@@ -327,7 +327,7 @@ virt_to_phys_or_null_size(void *va, unsigned long size)
int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages)
{
- unsigned long pfn, text;
+ unsigned long pfn, text, pf;
struct page *page;
unsigned npages;
pgd_t *pgd;
@@ -335,7 +335,12 @@ int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages)
if (efi_enabled(EFI_OLD_MEMMAP))
return 0;
- efi_scratch.efi_pgt = (pgd_t *)__pa(efi_pgd);
+ /*
+ * Since the PGD is encrypted, set the encryption mask so that when
+ * this value is loaded into cr3 the PGD will be decrypted during
+ * the pagetable walk.
+ */
+ efi_scratch.efi_pgt = (pgd_t *)__sme_pa(efi_pgd);
pgd = efi_pgd;
/*
@@ -345,7 +350,8 @@ int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages)
* phys_efi_set_virtual_address_map().
*/
pfn = pa_memmap >> PAGE_SHIFT;
- if (kernel_map_pages_in_pgd(pgd, pfn, pa_memmap, num_pages, _PAGE_NX | _PAGE_RW)) {
+ pf = _PAGE_NX | _PAGE_RW | _PAGE_ENC;
+ if (kernel_map_pages_in_pgd(pgd, pfn, pa_memmap, num_pages, pf)) {
pr_err("Error ident-mapping new memmap (0x%lx)!\n", pa_memmap);
return 1;
}
@@ -388,7 +394,8 @@ int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages)
text = __pa(_text);
pfn = text >> PAGE_SHIFT;
- if (kernel_map_pages_in_pgd(pgd, pfn, text, npages, _PAGE_RW)) {
+ pf = _PAGE_RW | _PAGE_ENC;
+ if (kernel_map_pages_in_pgd(pgd, pfn, text, npages, pf)) {
pr_err("Failed to map kernel text 1:1\n");
return 1;
}
@@ -589,7 +596,10 @@ void __init efi_runtime_update_mappings(void)
void __init efi_dump_pagetable(void)
{
#ifdef CONFIG_EFI_PGT_DUMP
- ptdump_walk_pgd_level(NULL, efi_pgd);
+ if (efi_enabled(EFI_OLD_MEMMAP))
+ ptdump_walk_pgd_level(NULL, swapper_pg_dir);
+ else
+ ptdump_walk_pgd_level(NULL, efi_pgd);
#endif
}
@@ -646,7 +656,7 @@ efi_status_t efi_thunk_set_virtual_address_map(
efi_sync_low_kernel_mappings();
local_irq_save(flags);
- efi_scratch.prev_cr3 = read_cr3();
+ efi_scratch.prev_cr3 = __read_cr3();
write_cr3((unsigned long)efi_scratch.efi_pgt);
__flush_tlb_all();
diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c
index e0cf95a83f3f..8a99a2e96537 100644
--- a/arch/x86/platform/efi/quirks.c
+++ b/arch/x86/platform/efi/quirks.c
@@ -15,12 +15,66 @@
#include <asm/e820/api.h>
#include <asm/efi.h>
#include <asm/uv/uv.h>
+#include <asm/cpu_device_id.h>
#define EFI_MIN_RESERVE 5120
#define EFI_DUMMY_GUID \
EFI_GUID(0x4424ac57, 0xbe4b, 0x47dd, 0x9e, 0x97, 0xed, 0x50, 0xf0, 0x9f, 0x92, 0xa9)
+#define QUARK_CSH_SIGNATURE 0x5f435348 /* _CSH */
+#define QUARK_SECURITY_HEADER_SIZE 0x400
+
+/*
+ * Header prepended to the standard EFI capsule on Quark systems the are based
+ * on Intel firmware BSP.
+ * @csh_signature: Unique identifier to sanity check signed module
+ * presence ("_CSH").
+ * @version: Current version of CSH used. Should be one for Quark A0.
+ * @modulesize: Size of the entire module including the module header
+ * and payload.
+ * @security_version_number_index: Index of SVN to use for validation of signed
+ * module.
+ * @security_version_number: Used to prevent against roll back of modules.
+ * @rsvd_module_id: Currently unused for Clanton (Quark).
+ * @rsvd_module_vendor: Vendor Identifier. For Intel products value is
+ * 0x00008086.
+ * @rsvd_date: BCD representation of build date as yyyymmdd, where
+ * yyyy=4 digit year, mm=1-12, dd=1-31.
+ * @headersize: Total length of the header including including any
+ * padding optionally added by the signing tool.
+ * @hash_algo: What Hash is used in the module signing.
+ * @cryp_algo: What Crypto is used in the module signing.
+ * @keysize: Total length of the key data including including any
+ * padding optionally added by the signing tool.
+ * @signaturesize: Total length of the signature including including any
+ * padding optionally added by the signing tool.
+ * @rsvd_next_header: 32-bit pointer to the next Secure Boot Module in the
+ * chain, if there is a next header.
+ * @rsvd: Reserved, padding structure to required size.
+ *
+ * See also QuartSecurityHeader_t in
+ * Quark_EDKII_v1.2.1.1/QuarkPlatformPkg/Include/QuarkBootRom.h
+ * from https://downloadcenter.intel.com/download/23197/Intel-Quark-SoC-X1000-Board-Support-Package-BSP
+ */
+struct quark_security_header {
+ u32 csh_signature;
+ u32 version;
+ u32 modulesize;
+ u32 security_version_number_index;
+ u32 security_version_number;
+ u32 rsvd_module_id;
+ u32 rsvd_module_vendor;
+ u32 rsvd_date;
+ u32 headersize;
+ u32 hash_algo;
+ u32 cryp_algo;
+ u32 keysize;
+ u32 signaturesize;
+ u32 rsvd_next_header;
+ u32 rsvd[2];
+};
+
static efi_char16_t efi_dummy_name[6] = { 'D', 'U', 'M', 'M', 'Y', 0 };
static bool efi_no_storage_paranoia;
@@ -504,3 +558,86 @@ bool efi_poweroff_required(void)
{
return acpi_gbl_reduced_hardware || acpi_no_s5;
}
+
+#ifdef CONFIG_EFI_CAPSULE_QUIRK_QUARK_CSH
+
+static int qrk_capsule_setup_info(struct capsule_info *cap_info, void **pkbuff,
+ size_t hdr_bytes)
+{
+ struct quark_security_header *csh = *pkbuff;
+
+ /* Only process data block that is larger than the security header */
+ if (hdr_bytes < sizeof(struct quark_security_header))
+ return 0;
+
+ if (csh->csh_signature != QUARK_CSH_SIGNATURE ||
+ csh->headersize != QUARK_SECURITY_HEADER_SIZE)
+ return 1;
+
+ /* Only process data block if EFI header is included */
+ if (hdr_bytes < QUARK_SECURITY_HEADER_SIZE +
+ sizeof(efi_capsule_header_t))
+ return 0;
+
+ pr_debug("Quark security header detected\n");
+
+ if (csh->rsvd_next_header != 0) {
+ pr_err("multiple Quark security headers not supported\n");
+ return -EINVAL;
+ }
+
+ *pkbuff += csh->headersize;
+ cap_info->total_size = csh->headersize;
+
+ /*
+ * Update the first page pointer to skip over the CSH header.
+ */
+ cap_info->pages[0] += csh->headersize;
+
+ return 1;
+}
+
+#define ICPU(family, model, quirk_handler) \
+ { X86_VENDOR_INTEL, family, model, X86_FEATURE_ANY, \
+ (unsigned long)&quirk_handler }
+
+static const struct x86_cpu_id efi_capsule_quirk_ids[] = {
+ ICPU(5, 9, qrk_capsule_setup_info), /* Intel Quark X1000 */
+ { }
+};
+
+int efi_capsule_setup_info(struct capsule_info *cap_info, void *kbuff,
+ size_t hdr_bytes)
+{
+ int (*quirk_handler)(struct capsule_info *, void **, size_t);
+ const struct x86_cpu_id *id;
+ int ret;
+
+ if (hdr_bytes < sizeof(efi_capsule_header_t))
+ return 0;
+
+ cap_info->total_size = 0;
+
+ id = x86_match_cpu(efi_capsule_quirk_ids);
+ if (id) {
+ /*
+ * The quirk handler is supposed to return
+ * - a value > 0 if the setup should continue, after advancing
+ * kbuff as needed
+ * - 0 if not enough hdr_bytes are available yet
+ * - a negative error code otherwise
+ */
+ quirk_handler = (typeof(quirk_handler))id->driver_data;
+ ret = quirk_handler(cap_info, &kbuff, hdr_bytes);
+ if (ret <= 0)
+ return ret;
+ }
+
+ memcpy(&cap_info->header, kbuff, sizeof(cap_info->header));
+
+ cap_info->total_size += cap_info->header.imagesize;
+
+ return __efi_capsule_setup_info(cap_info);
+}
+
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_bt.c b/arch/x86/platform/intel-mid/device_libs/platform_bt.c
index 5a0483e7bf66..dc036e511f48 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_bt.c
+++ b/arch/x86/platform/intel-mid/device_libs/platform_bt.c
@@ -60,7 +60,7 @@ static int __init tng_bt_sfi_setup(struct bt_sfi_data *ddata)
return 0;
}
-static struct bt_sfi_data tng_bt_sfi_data __initdata = {
+static const struct bt_sfi_data tng_bt_sfi_data __initdata = {
.setup = tng_bt_sfi_setup,
};
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_max7315.c b/arch/x86/platform/intel-mid/device_libs/platform_max7315.c
index 6e075afa7877..58337b2bc682 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_max7315.c
+++ b/arch/x86/platform/intel-mid/device_libs/platform_max7315.c
@@ -38,8 +38,10 @@ static void __init *max7315_platform_data(void *info)
*/
strcpy(i2c_info->type, "max7315");
if (nr++) {
- sprintf(base_pin_name, "max7315_%d_base", nr);
- sprintf(intr_pin_name, "max7315_%d_int", nr);
+ snprintf(base_pin_name, sizeof(base_pin_name),
+ "max7315_%d_base", nr);
+ snprintf(intr_pin_name, sizeof(intr_pin_name),
+ "max7315_%d_int", nr);
} else {
strcpy(base_pin_name, "max7315_base");
strcpy(intr_pin_name, "max7315_int");
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_mrfld_wdt.c b/arch/x86/platform/intel-mid/device_libs/platform_mrfld_wdt.c
index 9e304e2ea4f5..4f5fa65a1011 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_mrfld_wdt.c
+++ b/arch/x86/platform/intel-mid/device_libs/platform_mrfld_wdt.c
@@ -30,13 +30,13 @@ static int tangier_probe(struct platform_device *pdev)
{
struct irq_alloc_info info;
struct intel_mid_wdt_pdata *pdata = pdev->dev.platform_data;
- int gsi, irq;
+ int gsi = TANGIER_EXT_TIMER0_MSI;
+ int irq;
if (!pdata)
return -EINVAL;
/* IOAPIC builds identity mapping between GSI and IRQ on MID */
- gsi = pdata->irq;
ioapic_set_alloc_attr(&info, cpu_to_node(0), 1, 0);
irq = mp_map_gsi_to_irq(gsi, IOAPIC_MAP_ALLOC, &info);
if (irq < 0) {
@@ -44,11 +44,11 @@ static int tangier_probe(struct platform_device *pdev)
return irq;
}
+ pdata->irq = irq;
return 0;
}
static struct intel_mid_wdt_pdata tangier_pdata = {
- .irq = TANGIER_EXT_TIMER0_MSI,
.probe = tangier_probe,
};
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c b/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c
index b1526b95fd43..2905376559f1 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c
+++ b/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c
@@ -11,7 +11,7 @@
*/
#include <linux/gpio.h>
-#include <linux/i2c/tc35876x.h>
+#include <linux/platform_data/tc35876x.h>
#include <asm/intel-mid.h>
/*tc35876x DSI_LVDS bridge chip and panel platform data*/
diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index 12a272582cdc..86676cec99a1 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -183,6 +183,7 @@ void __init x86_intel_mid_early_setup(void)
x86_init.timers.timer_init = intel_mid_time_init;
x86_init.timers.setup_percpu_clockev = x86_init_noop;
+ x86_init.timers.wallclock_init = intel_mid_rtc_init;
x86_init.irqs.pre_vector_init = x86_init_noop;
@@ -191,7 +192,6 @@ void __init x86_intel_mid_early_setup(void)
x86_cpuinit.setup_percpu_clockev = apbt_setup_secondary_clock;
x86_platform.calibrate_tsc = intel_mid_calibrate_tsc;
- x86_init.timers.wallclock_init = intel_mid_rtc_init;
x86_platform.get_nmi_reason = intel_mid_get_nmi_reason;
x86_init.pci.init = intel_mid_pci_init;
diff --git a/arch/x86/platform/intel-mid/pwr.c b/arch/x86/platform/intel-mid/pwr.c
index ef03852ea6e8..49ec5b94c71f 100644
--- a/arch/x86/platform/intel-mid/pwr.c
+++ b/arch/x86/platform/intel-mid/pwr.c
@@ -444,7 +444,7 @@ static int mid_set_initial_state(struct mid_pwr *pwr, const u32 *states)
static int pnw_set_initial_state(struct mid_pwr *pwr)
{
/* On Penwell SRAM must stay powered on */
- const u32 states[] = {
+ static const u32 states[] = {
0xf00fffff, /* PM_SSC(0) */
0xffffffff, /* PM_SSC(1) */
0xffffffff, /* PM_SSC(2) */
@@ -455,7 +455,7 @@ static int pnw_set_initial_state(struct mid_pwr *pwr)
static int tng_set_initial_state(struct mid_pwr *pwr)
{
- const u32 states[] = {
+ static const u32 states[] = {
0xffffffff, /* PM_SSC(0) */
0xffffffff, /* PM_SSC(1) */
0xffffffff, /* PM_SSC(2) */
diff --git a/arch/x86/platform/olpc/olpc-xo1-pm.c b/arch/x86/platform/olpc/olpc-xo1-pm.c
index c5350fd27d70..0668aaff8bfe 100644
--- a/arch/x86/platform/olpc/olpc-xo1-pm.c
+++ b/arch/x86/platform/olpc/olpc-xo1-pm.c
@@ -77,7 +77,7 @@ static int xo1_power_state_enter(suspend_state_t pm_state)
asmlinkage __visible int xo1_do_sleep(u8 sleep_state)
{
- void *pgd_addr = __va(read_cr3());
+ void *pgd_addr = __va(read_cr3_pa());
/* Program wakeup mask (using dword access to CS5536_PM1_EN) */
outl(wakeup_mask << 16, acpi_base + CS5536_PM1_STS);
diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index 42e65fee5673..f44c0bc95aa2 100644
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -26,7 +26,7 @@
static struct bau_operations ops __ro_after_init;
/* timeouts in nanoseconds (indexed by UVH_AGING_PRESCALE_SEL urgency7 30:28) */
-static int timeout_base_ns[] = {
+static const int timeout_base_ns[] = {
20,
160,
1280,
@@ -40,7 +40,6 @@ static int timeout_base_ns[] = {
static int timeout_us;
static bool nobau = true;
static int nobau_perm;
-static cycles_t congested_cycles;
/* tunables: */
static int max_concurr = MAX_BAU_CONCURRENT;
@@ -456,12 +455,13 @@ static void reset_with_ipi(struct pnmask *distribution, struct bau_control *bcp)
*/
static inline unsigned long long cycles_2_ns(unsigned long long cyc)
{
- struct cyc2ns_data *data = cyc2ns_read_begin();
+ struct cyc2ns_data data;
unsigned long long ns;
- ns = mul_u64_u32_shr(cyc, data->cyc2ns_mul, data->cyc2ns_shift);
+ cyc2ns_read_begin(&data);
+ ns = mul_u64_u32_shr(cyc, data.cyc2ns_mul, data.cyc2ns_shift);
+ cyc2ns_read_end();
- cyc2ns_read_end(data);
return ns;
}
@@ -470,12 +470,13 @@ static inline unsigned long long cycles_2_ns(unsigned long long cyc)
*/
static inline unsigned long long ns_2_cycles(unsigned long long ns)
{
- struct cyc2ns_data *data = cyc2ns_read_begin();
+ struct cyc2ns_data data;
unsigned long long cyc;
- cyc = (ns << data->cyc2ns_shift) / data->cyc2ns_mul;
+ cyc2ns_read_begin(&data);
+ cyc = (ns << data.cyc2ns_shift) / data.cyc2ns_mul;
+ cyc2ns_read_end();
- cyc2ns_read_end(data);
return cyc;
}
@@ -586,31 +587,11 @@ static unsigned long uv2_3_read_status(unsigned long offset, int rshft, int desc
}
/*
- * Return whether the status of the descriptor that is normally used for this
- * cpu (the one indexed by its hub-relative cpu number) is busy.
- * The status of the original 32 descriptors is always reflected in the 64
- * bits of UVH_LB_BAU_SB_ACTIVATION_STATUS_0.
- * The bit provided by the activation_status_2 register is irrelevant to
- * the status if it is only being tested for busy or not busy.
- */
-int normal_busy(struct bau_control *bcp)
-{
- int cpu = bcp->uvhub_cpu;
- int mmr_offset;
- int right_shift;
-
- mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_0;
- right_shift = cpu * UV_ACT_STATUS_SIZE;
- return (((((read_lmmr(mmr_offset) >> right_shift) &
- UV_ACT_STATUS_MASK)) << 1) == UV2H_DESC_BUSY);
-}
-
-/*
* Entered when a bau descriptor has gone into a permanent busy wait because
* of a hardware bug.
* Workaround the bug.
*/
-int handle_uv2_busy(struct bau_control *bcp)
+static int handle_uv2_busy(struct bau_control *bcp)
{
struct ptc_stats *stat = bcp->statp;
@@ -847,10 +828,10 @@ static void record_send_stats(cycles_t time1, cycles_t time2,
if ((completion_status == FLUSH_COMPLETE) && (try == 1)) {
bcp->period_requests++;
bcp->period_time += elapsed;
- if ((elapsed > congested_cycles) &&
+ if ((elapsed > usec_2_cycles(bcp->cong_response_us)) &&
(bcp->period_requests > bcp->cong_reps) &&
((bcp->period_time / bcp->period_requests) >
- congested_cycles)) {
+ usec_2_cycles(bcp->cong_response_us))) {
stat->s_congested++;
disable_for_period(bcp, stat);
}
@@ -915,8 +896,9 @@ static void handle_cmplt(int completion_status, struct bau_desc *bau_desc,
* Returns 1 if it gives up entirely and the original cpu mask is to be
* returned to the kernel.
*/
-int uv_flush_send_and_wait(struct cpumask *flush_mask, struct bau_control *bcp,
- struct bau_desc *bau_desc)
+static int uv_flush_send_and_wait(struct cpumask *flush_mask,
+ struct bau_control *bcp,
+ struct bau_desc *bau_desc)
{
int seq_number = 0;
int completion_stat = 0;
@@ -1121,11 +1103,9 @@ static int set_distrib_bits(struct cpumask *flush_mask, struct bau_control *bcp,
* done. The returned pointer is valid till preemption is re-enabled.
*/
const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
- struct mm_struct *mm,
- unsigned long start,
- unsigned long end,
- unsigned int cpu)
+ const struct flush_tlb_info *info)
{
+ unsigned int cpu = smp_processor_id();
int locals = 0, remotes = 0, hubs = 0;
struct bau_desc *bau_desc;
struct cpumask *flush_mask;
@@ -1179,8 +1159,8 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
record_send_statistics(stat, locals, hubs, remotes, bau_desc);
- if (!end || (end - start) <= PAGE_SIZE)
- address = start;
+ if (!info->end || (info->end - info->start) <= PAGE_SIZE)
+ address = info->start;
else
address = TLB_FLUSH_ALL;
@@ -1212,8 +1192,8 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
* Search the message queue for any 'other' unprocessed message with the
* same software acknowledge resource bit vector as the 'msg' message.
*/
-struct bau_pq_entry *find_another_by_swack(struct bau_pq_entry *msg,
- struct bau_control *bcp)
+static struct bau_pq_entry *find_another_by_swack(struct bau_pq_entry *msg,
+ struct bau_control *bcp)
{
struct bau_pq_entry *msg_next = msg + 1;
unsigned char swack_vec = msg->swack_vec;
@@ -1236,7 +1216,7 @@ struct bau_pq_entry *find_another_by_swack(struct bau_pq_entry *msg,
* set a bit in the UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE register.
* Such a message must be ignored.
*/
-void process_uv2_message(struct msg_desc *mdp, struct bau_control *bcp)
+static void process_uv2_message(struct msg_desc *mdp, struct bau_control *bcp)
{
unsigned long mmr_image;
unsigned char swack_vec;
@@ -2241,14 +2221,17 @@ static int __init uv_bau_init(void)
else if (is_uv1_hub())
ops = uv1_bau_ops;
+ nuvhubs = uv_num_possible_blades();
+ if (nuvhubs < 2) {
+ pr_crit("UV: BAU disabled - insufficient hub count\n");
+ goto err_bau_disable;
+ }
+
for_each_possible_cpu(cur_cpu) {
mask = &per_cpu(uv_flush_tlb_mask, cur_cpu);
zalloc_cpumask_var_node(mask, GFP_KERNEL, cpu_to_node(cur_cpu));
}
- nuvhubs = uv_num_possible_blades();
- congested_cycles = usec_2_cycles(congested_respns_us);
-
uv_base_pnode = 0x7fffffff;
for (uvhub = 0; uvhub < nuvhubs; uvhub++) {
cpus = uv_blade_nr_possible_cpus(uvhub);
@@ -2261,9 +2244,8 @@ static int __init uv_bau_init(void)
enable_timeouts();
if (init_per_cpu(nuvhubs, uv_base_pnode)) {
- set_bau_off();
- nobau_perm = 1;
- return 0;
+ pr_crit("UV: BAU disabled - per CPU init failed\n");
+ goto err_bau_disable;
}
vector = UV_BAU_MESSAGE;
@@ -2289,6 +2271,16 @@ static int __init uv_bau_init(void)
}
return 0;
+
+err_bau_disable:
+
+ for_each_possible_cpu(cur_cpu)
+ free_cpumask_var(per_cpu(uv_flush_tlb_mask, cur_cpu));
+
+ set_bau_off();
+ nobau_perm = 1;
+
+ return -EINVAL;
}
core_initcall(uv_bau_init);
fs_initcall(uv_ptc_init);
diff --git a/arch/x86/platform/uv/uv_irq.c b/arch/x86/platform/uv/uv_irq.c
index 776c6592136c..03fc397335b7 100644
--- a/arch/x86/platform/uv/uv_irq.c
+++ b/arch/x86/platform/uv/uv_irq.c
@@ -160,13 +160,21 @@ static struct irq_domain *uv_get_irq_domain(void)
{
static struct irq_domain *uv_domain;
static DEFINE_MUTEX(uv_lock);
+ struct fwnode_handle *fn;
mutex_lock(&uv_lock);
- if (uv_domain == NULL) {
- uv_domain = irq_domain_add_tree(NULL, &uv_domain_ops, NULL);
- if (uv_domain)
- uv_domain->parent = x86_vector_domain;
- }
+ if (uv_domain)
+ goto out;
+
+ fn = irq_domain_alloc_named_fwnode("UV-CORE");
+ if (!fn)
+ goto out;
+
+ uv_domain = irq_domain_create_tree(fn, &uv_domain_ops, NULL);
+ irq_domain_free_fwnode(fn);
+ if (uv_domain)
+ uv_domain->parent = x86_vector_domain;
+out:
mutex_unlock(&uv_lock);
return uv_domain;
diff --git a/arch/x86/power/Makefile b/arch/x86/power/Makefile
index a6a198c33623..05041871ac90 100644
--- a/arch/x86/power/Makefile
+++ b/arch/x86/power/Makefile
@@ -1,3 +1,5 @@
+OBJECT_FILES_NON_STANDARD_hibernate_asm_$(BITS).o := y
+
# __restore_processor_state() restores %gs after S3 resume and so should not
# itself be stack-protected
nostackp := $(call cc-option, -fno-stack-protector)
diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c
index 6b05a9219ea2..84fcfde53f8f 100644
--- a/arch/x86/power/cpu.c
+++ b/arch/x86/power/cpu.c
@@ -129,7 +129,7 @@ static void __save_processor_state(struct saved_context *ctxt)
*/
ctxt->cr0 = read_cr0();
ctxt->cr2 = read_cr2();
- ctxt->cr3 = read_cr3();
+ ctxt->cr3 = __read_cr3();
ctxt->cr4 = __read_cr4();
#ifdef CONFIG_X86_64
ctxt->cr8 = read_cr8();
@@ -181,6 +181,7 @@ static void fix_processor_context(void)
#endif
load_TR_desc(); /* This does ltr */
load_mm_ldt(current->active_mm); /* This does lldt */
+ initialize_tlbstate_and_flush();
fpu__resume_cpu();
@@ -427,7 +428,7 @@ static int msr_initialize_bdw(const struct dmi_system_id *d)
return msr_init_context(bdw_msr_id, ARRAY_SIZE(bdw_msr_id));
}
-static struct dmi_system_id msr_save_dmi_table[] = {
+static const struct dmi_system_id msr_save_dmi_table[] = {
{
.callback = msr_initialize_bdw,
.ident = "BROADWELL BDX_EP",
diff --git a/arch/x86/power/hibernate_64.c b/arch/x86/power/hibernate_64.c
index a6e21fee22ea..f910c514438f 100644
--- a/arch/x86/power/hibernate_64.c
+++ b/arch/x86/power/hibernate_64.c
@@ -147,10 +147,11 @@ static int relocate_restore_code(void)
if (!relocated_restore_code)
return -ENOMEM;
- memcpy((void *)relocated_restore_code, &core_restore_code, PAGE_SIZE);
+ memcpy((void *)relocated_restore_code, core_restore_code, PAGE_SIZE);
/* Make the page containing the relocated code executable */
- pgd = (pgd_t *)__va(read_cr3()) + pgd_index(relocated_restore_code);
+ pgd = (pgd_t *)__va(read_cr3_pa()) +
+ pgd_index(relocated_restore_code);
p4d = p4d_offset(pgd, relocated_restore_code);
if (p4d_large(*p4d)) {
set_p4d(p4d, __p4d(p4d_val(*p4d) & ~_PAGE_NX));
@@ -292,9 +293,28 @@ int arch_hibernation_header_save(void *addr, unsigned int max_size)
if (max_size < sizeof(struct restore_data_record))
return -EOVERFLOW;
- rdr->jump_address = (unsigned long)&restore_registers;
- rdr->jump_address_phys = __pa_symbol(&restore_registers);
- rdr->cr3 = restore_cr3;
+ rdr->jump_address = (unsigned long)restore_registers;
+ rdr->jump_address_phys = __pa_symbol(restore_registers);
+
+ /*
+ * The restore code fixes up CR3 and CR4 in the following sequence:
+ *
+ * [in hibernation asm]
+ * 1. CR3 <= temporary page tables
+ * 2. CR4 <= mmu_cr4_features (from the kernel that restores us)
+ * 3. CR3 <= rdr->cr3
+ * 4. CR4 <= mmu_cr4_features (from us, i.e. the image kernel)
+ * [in restore_processor_state()]
+ * 5. CR4 <= saved CR4
+ * 6. CR3 <= saved CR3
+ *
+ * Our mmu_cr4_features has CR4.PCIDE=0, and toggling
+ * CR4.PCIDE while CR3's PCID bits are nonzero is illegal, so
+ * rdr->cr3 needs to point to valid page tables but must not
+ * have any of the PCID bits set.
+ */
+ rdr->cr3 = restore_cr3 & ~CR3_PCID_MASK;
+
rdr->magic = RESTORE_MAGIC;
hibernation_e820_save(rdr->e820_digest);
diff --git a/arch/x86/ras/Kconfig b/arch/x86/ras/Kconfig
index 2a2d89d39af6..bb026699ad19 100644
--- a/arch/x86/ras/Kconfig
+++ b/arch/x86/ras/Kconfig
@@ -1,13 +1,3 @@
-config MCE_AMD_INJ
- tristate "Simple MCE injection interface for AMD processors"
- depends on RAS && X86_MCE && DEBUG_FS && AMD_NB
- default n
- help
- This is a simple debugfs interface to inject MCEs and test different
- aspects of the MCE handling code.
-
- WARNING: Do not even assume this interface is staying stable!
-
config RAS_CEC
bool "Correctable Errors Collector"
depends on X86_MCE && MEMORY_FAILURE && DEBUG_FS
@@ -20,4 +10,3 @@ config RAS_CEC
Bear in mind that this is absolutely useless if your platform doesn't
have ECC DIMMs and doesn't have DRAM ECC checking enabled in the BIOS.
-
diff --git a/arch/x86/ras/Makefile b/arch/x86/ras/Makefile
deleted file mode 100644
index 5f94546db280..000000000000
--- a/arch/x86/ras/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-obj-$(CONFIG_MCE_AMD_INJ) += mce_amd_inj.o
-
diff --git a/arch/x86/ras/mce_amd_inj.c b/arch/x86/ras/mce_amd_inj.c
deleted file mode 100644
index 8730c2882fff..000000000000
--- a/arch/x86/ras/mce_amd_inj.c
+++ /dev/null
@@ -1,492 +0,0 @@
-/*
- * A simple MCE injection facility for testing different aspects of the RAS
- * code. This driver should be built as module so that it can be loaded
- * on production kernels for testing purposes.
- *
- * This file may be distributed under the terms of the GNU General Public
- * License version 2.
- *
- * Copyright (c) 2010-15: Borislav Petkov <bp@alien8.de>
- * Advanced Micro Devices Inc.
- */
-
-#include <linux/kobject.h>
-#include <linux/debugfs.h>
-#include <linux/device.h>
-#include <linux/module.h>
-#include <linux/cpu.h>
-#include <linux/string.h>
-#include <linux/uaccess.h>
-#include <linux/pci.h>
-
-#include <asm/mce.h>
-#include <asm/smp.h>
-#include <asm/amd_nb.h>
-#include <asm/irq_vectors.h>
-
-#include "../kernel/cpu/mcheck/mce-internal.h"
-
-/*
- * Collect all the MCi_XXX settings
- */
-static struct mce i_mce;
-static struct dentry *dfs_inj;
-
-static u8 n_banks;
-
-#define MAX_FLAG_OPT_SIZE 3
-#define NBCFG 0x44
-
-enum injection_type {
- SW_INJ = 0, /* SW injection, simply decode the error */
- HW_INJ, /* Trigger a #MC */
- DFR_INT_INJ, /* Trigger Deferred error interrupt */
- THR_INT_INJ, /* Trigger threshold interrupt */
- N_INJ_TYPES,
-};
-
-static const char * const flags_options[] = {
- [SW_INJ] = "sw",
- [HW_INJ] = "hw",
- [DFR_INT_INJ] = "df",
- [THR_INT_INJ] = "th",
- NULL
-};
-
-/* Set default injection to SW_INJ */
-static enum injection_type inj_type = SW_INJ;
-
-#define MCE_INJECT_SET(reg) \
-static int inj_##reg##_set(void *data, u64 val) \
-{ \
- struct mce *m = (struct mce *)data; \
- \
- m->reg = val; \
- return 0; \
-}
-
-MCE_INJECT_SET(status);
-MCE_INJECT_SET(misc);
-MCE_INJECT_SET(addr);
-MCE_INJECT_SET(synd);
-
-#define MCE_INJECT_GET(reg) \
-static int inj_##reg##_get(void *data, u64 *val) \
-{ \
- struct mce *m = (struct mce *)data; \
- \
- *val = m->reg; \
- return 0; \
-}
-
-MCE_INJECT_GET(status);
-MCE_INJECT_GET(misc);
-MCE_INJECT_GET(addr);
-MCE_INJECT_GET(synd);
-
-DEFINE_SIMPLE_ATTRIBUTE(status_fops, inj_status_get, inj_status_set, "%llx\n");
-DEFINE_SIMPLE_ATTRIBUTE(misc_fops, inj_misc_get, inj_misc_set, "%llx\n");
-DEFINE_SIMPLE_ATTRIBUTE(addr_fops, inj_addr_get, inj_addr_set, "%llx\n");
-DEFINE_SIMPLE_ATTRIBUTE(synd_fops, inj_synd_get, inj_synd_set, "%llx\n");
-
-/*
- * Caller needs to be make sure this cpu doesn't disappear
- * from under us, i.e.: get_cpu/put_cpu.
- */
-static int toggle_hw_mce_inject(unsigned int cpu, bool enable)
-{
- u32 l, h;
- int err;
-
- err = rdmsr_on_cpu(cpu, MSR_K7_HWCR, &l, &h);
- if (err) {
- pr_err("%s: error reading HWCR\n", __func__);
- return err;
- }
-
- enable ? (l |= BIT(18)) : (l &= ~BIT(18));
-
- err = wrmsr_on_cpu(cpu, MSR_K7_HWCR, l, h);
- if (err)
- pr_err("%s: error writing HWCR\n", __func__);
-
- return err;
-}
-
-static int __set_inj(const char *buf)
-{
- int i;
-
- for (i = 0; i < N_INJ_TYPES; i++) {
- if (!strncmp(flags_options[i], buf, strlen(flags_options[i]))) {
- inj_type = i;
- return 0;
- }
- }
- return -EINVAL;
-}
-
-static ssize_t flags_read(struct file *filp, char __user *ubuf,
- size_t cnt, loff_t *ppos)
-{
- char buf[MAX_FLAG_OPT_SIZE];
- int n;
-
- n = sprintf(buf, "%s\n", flags_options[inj_type]);
-
- return simple_read_from_buffer(ubuf, cnt, ppos, buf, n);
-}
-
-static ssize_t flags_write(struct file *filp, const char __user *ubuf,
- size_t cnt, loff_t *ppos)
-{
- char buf[MAX_FLAG_OPT_SIZE], *__buf;
- int err;
-
- if (cnt > MAX_FLAG_OPT_SIZE)
- return -EINVAL;
-
- if (copy_from_user(&buf, ubuf, cnt))
- return -EFAULT;
-
- buf[cnt - 1] = 0;
-
- /* strip whitespace */
- __buf = strstrip(buf);
-
- err = __set_inj(__buf);
- if (err) {
- pr_err("%s: Invalid flags value: %s\n", __func__, __buf);
- return err;
- }
-
- *ppos += cnt;
-
- return cnt;
-}
-
-static const struct file_operations flags_fops = {
- .read = flags_read,
- .write = flags_write,
- .llseek = generic_file_llseek,
-};
-
-/*
- * On which CPU to inject?
- */
-MCE_INJECT_GET(extcpu);
-
-static int inj_extcpu_set(void *data, u64 val)
-{
- struct mce *m = (struct mce *)data;
-
- if (val >= nr_cpu_ids || !cpu_online(val)) {
- pr_err("%s: Invalid CPU: %llu\n", __func__, val);
- return -EINVAL;
- }
- m->extcpu = val;
- return 0;
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(extcpu_fops, inj_extcpu_get, inj_extcpu_set, "%llu\n");
-
-static void trigger_mce(void *info)
-{
- asm volatile("int $18");
-}
-
-static void trigger_dfr_int(void *info)
-{
- asm volatile("int %0" :: "i" (DEFERRED_ERROR_VECTOR));
-}
-
-static void trigger_thr_int(void *info)
-{
- asm volatile("int %0" :: "i" (THRESHOLD_APIC_VECTOR));
-}
-
-static u32 get_nbc_for_node(int node_id)
-{
- struct cpuinfo_x86 *c = &boot_cpu_data;
- u32 cores_per_node;
-
- cores_per_node = (c->x86_max_cores * smp_num_siblings) / amd_get_nodes_per_socket();
-
- return cores_per_node * node_id;
-}
-
-static void toggle_nb_mca_mst_cpu(u16 nid)
-{
- struct pci_dev *F3 = node_to_amd_nb(nid)->misc;
- u32 val;
- int err;
-
- if (!F3)
- return;
-
- err = pci_read_config_dword(F3, NBCFG, &val);
- if (err) {
- pr_err("%s: Error reading F%dx%03x.\n",
- __func__, PCI_FUNC(F3->devfn), NBCFG);
- return;
- }
-
- if (val & BIT(27))
- return;
-
- pr_err("%s: Set D18F3x44[NbMcaToMstCpuEn] which BIOS hasn't done.\n",
- __func__);
-
- val |= BIT(27);
- err = pci_write_config_dword(F3, NBCFG, val);
- if (err)
- pr_err("%s: Error writing F%dx%03x.\n",
- __func__, PCI_FUNC(F3->devfn), NBCFG);
-}
-
-static void prepare_msrs(void *info)
-{
- struct mce m = *(struct mce *)info;
- u8 b = m.bank;
-
- wrmsrl(MSR_IA32_MCG_STATUS, m.mcgstatus);
-
- if (boot_cpu_has(X86_FEATURE_SMCA)) {
- if (m.inject_flags == DFR_INT_INJ) {
- wrmsrl(MSR_AMD64_SMCA_MCx_DESTAT(b), m.status);
- wrmsrl(MSR_AMD64_SMCA_MCx_DEADDR(b), m.addr);
- } else {
- wrmsrl(MSR_AMD64_SMCA_MCx_STATUS(b), m.status);
- wrmsrl(MSR_AMD64_SMCA_MCx_ADDR(b), m.addr);
- }
-
- wrmsrl(MSR_AMD64_SMCA_MCx_MISC(b), m.misc);
- wrmsrl(MSR_AMD64_SMCA_MCx_SYND(b), m.synd);
- } else {
- wrmsrl(MSR_IA32_MCx_STATUS(b), m.status);
- wrmsrl(MSR_IA32_MCx_ADDR(b), m.addr);
- wrmsrl(MSR_IA32_MCx_MISC(b), m.misc);
- }
-}
-
-static void do_inject(void)
-{
- u64 mcg_status = 0;
- unsigned int cpu = i_mce.extcpu;
- u8 b = i_mce.bank;
-
- rdtscll(i_mce.tsc);
-
- if (i_mce.misc)
- i_mce.status |= MCI_STATUS_MISCV;
-
- if (i_mce.synd)
- i_mce.status |= MCI_STATUS_SYNDV;
-
- if (inj_type == SW_INJ) {
- mce_inject_log(&i_mce);
- return;
- }
-
- /* prep MCE global settings for the injection */
- mcg_status = MCG_STATUS_MCIP | MCG_STATUS_EIPV;
-
- if (!(i_mce.status & MCI_STATUS_PCC))
- mcg_status |= MCG_STATUS_RIPV;
-
- /*
- * Ensure necessary status bits for deferred errors:
- * - MCx_STATUS[Deferred]: make sure it is a deferred error
- * - MCx_STATUS[UC] cleared: deferred errors are _not_ UC
- */
- if (inj_type == DFR_INT_INJ) {
- i_mce.status |= MCI_STATUS_DEFERRED;
- i_mce.status |= (i_mce.status & ~MCI_STATUS_UC);
- }
-
- /*
- * For multi node CPUs, logging and reporting of bank 4 errors happens
- * only on the node base core. Refer to D18F3x44[NbMcaToMstCpuEn] for
- * Fam10h and later BKDGs.
- */
- if (static_cpu_has(X86_FEATURE_AMD_DCM) &&
- b == 4 &&
- boot_cpu_data.x86 < 0x17) {
- toggle_nb_mca_mst_cpu(amd_get_nb_id(cpu));
- cpu = get_nbc_for_node(amd_get_nb_id(cpu));
- }
-
- get_online_cpus();
- if (!cpu_online(cpu))
- goto err;
-
- toggle_hw_mce_inject(cpu, true);
-
- i_mce.mcgstatus = mcg_status;
- i_mce.inject_flags = inj_type;
- smp_call_function_single(cpu, prepare_msrs, &i_mce, 0);
-
- toggle_hw_mce_inject(cpu, false);
-
- switch (inj_type) {
- case DFR_INT_INJ:
- smp_call_function_single(cpu, trigger_dfr_int, NULL, 0);
- break;
- case THR_INT_INJ:
- smp_call_function_single(cpu, trigger_thr_int, NULL, 0);
- break;
- default:
- smp_call_function_single(cpu, trigger_mce, NULL, 0);
- }
-
-err:
- put_online_cpus();
-
-}
-
-/*
- * This denotes into which bank we're injecting and triggers
- * the injection, at the same time.
- */
-static int inj_bank_set(void *data, u64 val)
-{
- struct mce *m = (struct mce *)data;
-
- if (val >= n_banks) {
- pr_err("Non-existent MCE bank: %llu\n", val);
- return -EINVAL;
- }
-
- m->bank = val;
- do_inject();
-
- return 0;
-}
-
-MCE_INJECT_GET(bank);
-
-DEFINE_SIMPLE_ATTRIBUTE(bank_fops, inj_bank_get, inj_bank_set, "%llu\n");
-
-static const char readme_msg[] =
-"Description of the files and their usages:\n"
-"\n"
-"Note1: i refers to the bank number below.\n"
-"Note2: See respective BKDGs for the exact bit definitions of the files below\n"
-"as they mirror the hardware registers.\n"
-"\n"
-"status:\t Set MCi_STATUS: the bits in that MSR control the error type and\n"
-"\t attributes of the error which caused the MCE.\n"
-"\n"
-"misc:\t Set MCi_MISC: provide auxiliary info about the error. It is mostly\n"
-"\t used for error thresholding purposes and its validity is indicated by\n"
-"\t MCi_STATUS[MiscV].\n"
-"\n"
-"synd:\t Set MCi_SYND: provide syndrome info about the error. Only valid on\n"
-"\t Scalable MCA systems, and its validity is indicated by MCi_STATUS[SyndV].\n"
-"\n"
-"addr:\t Error address value to be written to MCi_ADDR. Log address information\n"
-"\t associated with the error.\n"
-"\n"
-"cpu:\t The CPU to inject the error on.\n"
-"\n"
-"bank:\t Specify the bank you want to inject the error into: the number of\n"
-"\t banks in a processor varies and is family/model-specific, therefore, the\n"
-"\t supplied value is sanity-checked. Setting the bank value also triggers the\n"
-"\t injection.\n"
-"\n"
-"flags:\t Injection type to be performed. Writing to this file will trigger a\n"
-"\t real machine check, an APIC interrupt or invoke the error decoder routines\n"
-"\t for AMD processors.\n"
-"\n"
-"\t Allowed error injection types:\n"
-"\t - \"sw\": Software error injection. Decode error to a human-readable \n"
-"\t format only. Safe to use.\n"
-"\t - \"hw\": Hardware error injection. Causes the #MC exception handler to \n"
-"\t handle the error. Be warned: might cause system panic if MCi_STATUS[PCC] \n"
-"\t is set. Therefore, consider setting (debugfs_mountpoint)/mce/fake_panic \n"
-"\t before injecting.\n"
-"\t - \"df\": Trigger APIC interrupt for Deferred error. Causes deferred \n"
-"\t error APIC interrupt handler to handle the error if the feature is \n"
-"\t is present in hardware. \n"
-"\t - \"th\": Trigger APIC interrupt for Threshold errors. Causes threshold \n"
-"\t APIC interrupt handler to handle the error. \n"
-"\n";
-
-static ssize_t
-inj_readme_read(struct file *filp, char __user *ubuf,
- size_t cnt, loff_t *ppos)
-{
- return simple_read_from_buffer(ubuf, cnt, ppos,
- readme_msg, strlen(readme_msg));
-}
-
-static const struct file_operations readme_fops = {
- .read = inj_readme_read,
-};
-
-static struct dfs_node {
- char *name;
- struct dentry *d;
- const struct file_operations *fops;
- umode_t perm;
-} dfs_fls[] = {
- { .name = "status", .fops = &status_fops, .perm = S_IRUSR | S_IWUSR },
- { .name = "misc", .fops = &misc_fops, .perm = S_IRUSR | S_IWUSR },
- { .name = "addr", .fops = &addr_fops, .perm = S_IRUSR | S_IWUSR },
- { .name = "synd", .fops = &synd_fops, .perm = S_IRUSR | S_IWUSR },
- { .name = "bank", .fops = &bank_fops, .perm = S_IRUSR | S_IWUSR },
- { .name = "flags", .fops = &flags_fops, .perm = S_IRUSR | S_IWUSR },
- { .name = "cpu", .fops = &extcpu_fops, .perm = S_IRUSR | S_IWUSR },
- { .name = "README", .fops = &readme_fops, .perm = S_IRUSR | S_IRGRP | S_IROTH },
-};
-
-static int __init init_mce_inject(void)
-{
- unsigned int i;
- u64 cap;
-
- rdmsrl(MSR_IA32_MCG_CAP, cap);
- n_banks = cap & MCG_BANKCNT_MASK;
-
- dfs_inj = debugfs_create_dir("mce-inject", NULL);
- if (!dfs_inj)
- return -EINVAL;
-
- for (i = 0; i < ARRAY_SIZE(dfs_fls); i++) {
- dfs_fls[i].d = debugfs_create_file(dfs_fls[i].name,
- dfs_fls[i].perm,
- dfs_inj,
- &i_mce,
- dfs_fls[i].fops);
-
- if (!dfs_fls[i].d)
- goto err_dfs_add;
- }
-
- return 0;
-
-err_dfs_add:
- while (i-- > 0)
- debugfs_remove(dfs_fls[i].d);
-
- debugfs_remove(dfs_inj);
- dfs_inj = NULL;
-
- return -ENODEV;
-}
-
-static void __exit exit_mce_inject(void)
-{
-
- debugfs_remove_recursive(dfs_inj);
- dfs_inj = NULL;
-
- memset(&dfs_fls, 0, sizeof(dfs_fls));
-}
-module_init(init_mce_inject);
-module_exit(exit_mce_inject);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Borislav Petkov <bp@alien8.de>");
-MODULE_AUTHOR("AMD Inc.");
-MODULE_DESCRIPTION("MCE injection facility for RAS testing");
diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c
index a163a90af4aa..1f71980fc5e0 100644
--- a/arch/x86/realmode/init.c
+++ b/arch/x86/realmode/init.c
@@ -1,6 +1,7 @@
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/memblock.h>
+#include <linux/mem_encrypt.h>
#include <asm/set_memory.h>
#include <asm/pgtable.h>
@@ -59,6 +60,13 @@ static void __init setup_real_mode(void)
base = (unsigned char *)real_mode_header;
+ /*
+ * If SME is active, the trampoline area will need to be in
+ * decrypted memory in order to bring up other processors
+ * successfully.
+ */
+ set_memory_decrypted((unsigned long)base, size >> PAGE_SHIFT);
+
memcpy(base, real_mode_blob, size);
phys_base = __pa(base);
@@ -100,9 +108,13 @@ static void __init setup_real_mode(void)
trampoline_cr4_features = &trampoline_header->cr4;
*trampoline_cr4_features = mmu_cr4_features;
+ trampoline_header->flags = 0;
+ if (sme_active())
+ trampoline_header->flags |= TH_FLAGS_SME_ACTIVE;
+
trampoline_pgd = (u64 *) __va(real_mode_header->trampoline_pgd);
trampoline_pgd[0] = trampoline_pgd_entry.pgd;
- trampoline_pgd[511] = init_level4_pgt[511].pgd;
+ trampoline_pgd[511] = init_top_pgt[511].pgd;
#endif
}
diff --git a/arch/x86/realmode/rm/trampoline_64.S b/arch/x86/realmode/rm/trampoline_64.S
index dac7b20d2f9d..614fd7064d0a 100644
--- a/arch/x86/realmode/rm/trampoline_64.S
+++ b/arch/x86/realmode/rm/trampoline_64.S
@@ -30,6 +30,7 @@
#include <asm/msr.h>
#include <asm/segment.h>
#include <asm/processor-flags.h>
+#include <asm/realmode.h>
#include "realmode.h"
.text
@@ -92,6 +93,28 @@ ENTRY(startup_32)
movl %edx, %fs
movl %edx, %gs
+ /*
+ * Check for memory encryption support. This is a safety net in
+ * case BIOS hasn't done the necessary step of setting the bit in
+ * the MSR for this AP. If SME is active and we've gotten this far
+ * then it is safe for us to set the MSR bit and continue. If we
+ * don't we'll eventually crash trying to execute encrypted
+ * instructions.
+ */
+ bt $TH_FLAGS_SME_ACTIVE_BIT, pa_tr_flags
+ jnc .Ldone
+ movl $MSR_K8_SYSCFG, %ecx
+ rdmsr
+ bts $MSR_K8_SYSCFG_MEM_ENCRYPT_BIT, %eax
+ jc .Ldone
+
+ /*
+ * Memory encryption is enabled but the SME enable bit for this
+ * CPU has has not been set. It is safe to set it, so do so.
+ */
+ wrmsr
+.Ldone:
+
movl pa_tr_cr4, %eax
movl %eax, %cr4 # Enable PAE mode
@@ -147,6 +170,7 @@ GLOBAL(trampoline_header)
tr_start: .space 8
GLOBAL(tr_efer) .space 8
GLOBAL(tr_cr4) .space 4
+ GLOBAL(tr_flags) .space 4
END(trampoline_header)
#include "trampoline_common.S"
diff --git a/arch/x86/um/os-Linux/registers.c b/arch/x86/um/os-Linux/registers.c
index 00f54a91bb4b..3c423dfcd78b 100644
--- a/arch/x86/um/os-Linux/registers.c
+++ b/arch/x86/um/os-Linux/registers.c
@@ -5,6 +5,7 @@
*/
#include <errno.h>
+#include <stdlib.h>
#include <sys/ptrace.h>
#ifdef __i386__
#include <sys/user.h>
@@ -26,17 +27,18 @@ int save_i387_registers(int pid, unsigned long *fp_regs)
int save_fp_registers(int pid, unsigned long *fp_regs)
{
+#ifdef PTRACE_GETREGSET
struct iovec iov;
if (have_xstate_support) {
iov.iov_base = fp_regs;
- iov.iov_len = sizeof(struct _xstate);
+ iov.iov_len = FP_SIZE * sizeof(unsigned long);
if (ptrace(PTRACE_GETREGSET, pid, NT_X86_XSTATE, &iov) < 0)
return -errno;
return 0;
- } else {
+ } else
+#endif
return save_i387_registers(pid, fp_regs);
- }
}
int restore_i387_registers(int pid, unsigned long *fp_regs)
@@ -48,17 +50,17 @@ int restore_i387_registers(int pid, unsigned long *fp_regs)
int restore_fp_registers(int pid, unsigned long *fp_regs)
{
+#ifdef PTRACE_SETREGSET
struct iovec iov;
-
if (have_xstate_support) {
iov.iov_base = fp_regs;
- iov.iov_len = sizeof(struct _xstate);
+ iov.iov_len = FP_SIZE * sizeof(unsigned long);
if (ptrace(PTRACE_SETREGSET, pid, NT_X86_XSTATE, &iov) < 0)
return -errno;
return 0;
- } else {
+ } else
+#endif
return restore_i387_registers(pid, fp_regs);
- }
}
#ifdef __i386__
@@ -122,13 +124,21 @@ int put_fp_registers(int pid, unsigned long *regs)
void arch_init_registers(int pid)
{
- struct _xstate fp_regs;
+#ifdef PTRACE_GETREGSET
+ void * fp_regs;
struct iovec iov;
- iov.iov_base = &fp_regs;
- iov.iov_len = sizeof(struct _xstate);
+ fp_regs = malloc(FP_SIZE * sizeof(unsigned long));
+ if(fp_regs == NULL)
+ return;
+
+ iov.iov_base = fp_regs;
+ iov.iov_len = FP_SIZE * sizeof(unsigned long);
if (ptrace(PTRACE_GETREGSET, pid, NT_X86_XSTATE, &iov) == 0)
have_xstate_support = 1;
+
+ free(fp_regs);
+#endif
}
#endif
diff --git a/arch/x86/um/os-Linux/tls.c b/arch/x86/um/os-Linux/tls.c
index 9d94b3b76c74..ed8ea90967dc 100644
--- a/arch/x86/um/os-Linux/tls.c
+++ b/arch/x86/um/os-Linux/tls.c
@@ -37,7 +37,7 @@ void check_host_supports_tls(int *supports_tls, int *tls_min)
continue;
else if (errno == ENOSYS)
*supports_tls = 0;
- return;
+ return;
}
}
diff --git a/arch/x86/um/setjmp_32.S b/arch/x86/um/setjmp_32.S
index b766792c9933..39053192918d 100644
--- a/arch/x86/um/setjmp_32.S
+++ b/arch/x86/um/setjmp_32.S
@@ -16,9 +16,9 @@
.text
.align 4
- .globl setjmp
- .type setjmp, @function
-setjmp:
+ .globl kernel_setjmp
+ .type kernel_setjmp, @function
+kernel_setjmp:
#ifdef _REGPARM
movl %eax,%edx
#else
@@ -35,13 +35,13 @@ setjmp:
movl %ecx,20(%edx) # Return address
ret
- .size setjmp,.-setjmp
+ .size kernel_setjmp,.-kernel_setjmp
.text
.align 4
- .globl longjmp
- .type longjmp, @function
-longjmp:
+ .globl kernel_longjmp
+ .type kernel_longjmp, @function
+kernel_longjmp:
#ifdef _REGPARM
xchgl %eax,%edx
#else
@@ -55,4 +55,4 @@ longjmp:
movl 16(%edx),%edi
jmp *20(%edx)
- .size longjmp,.-longjmp
+ .size kernel_longjmp,.-kernel_longjmp
diff --git a/arch/x86/um/setjmp_64.S b/arch/x86/um/setjmp_64.S
index 45f547b4043e..c56942e1a38c 100644
--- a/arch/x86/um/setjmp_64.S
+++ b/arch/x86/um/setjmp_64.S
@@ -18,9 +18,9 @@
.text
.align 4
- .globl setjmp
- .type setjmp, @function
-setjmp:
+ .globl kernel_setjmp
+ .type kernel_setjmp, @function
+kernel_setjmp:
pop %rsi # Return address, and adjust the stack
xorl %eax,%eax # Return value
movq %rbx,(%rdi)
@@ -34,13 +34,13 @@ setjmp:
movq %rsi,56(%rdi) # Return address
ret
- .size setjmp,.-setjmp
+ .size kernel_setjmp,.-kernel_setjmp
.text
.align 4
- .globl longjmp
- .type longjmp, @function
-longjmp:
+ .globl kernel_longjmp
+ .type kernel_longjmp, @function
+kernel_longjmp:
movl %esi,%eax # Return value (int)
movq (%rdi),%rbx
movq 8(%rdi),%rsp
@@ -51,4 +51,4 @@ longjmp:
movq 48(%rdi),%r15
jmp *56(%rdi)
- .size longjmp,.-longjmp
+ .size kernel_longjmp,.-kernel_longjmp
diff --git a/arch/x86/um/user-offsets.c b/arch/x86/um/user-offsets.c
index cb3c22370cf5..3099c209546f 100644
--- a/arch/x86/um/user-offsets.c
+++ b/arch/x86/um/user-offsets.c
@@ -5,7 +5,7 @@
#include <sys/mman.h>
#include <sys/user.h>
#define __FRAME_OFFSETS
-#include <asm/ptrace.h>
+#include <linux/ptrace.h>
#include <asm/types.h>
#ifdef __i386__
@@ -50,7 +50,11 @@ void foo(void)
DEFINE(HOST_GS, GS);
DEFINE(HOST_ORIG_AX, ORIG_EAX);
#else
- DEFINE(HOST_FP_SIZE, sizeof(struct _xstate) / sizeof(unsigned long));
+#ifdef FP_XSTATE_MAGIC1
+ DEFINE_LONGS(HOST_FP_SIZE, 2696);
+#else
+ DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long));
+#endif
DEFINE_LONGS(HOST_BX, RBX);
DEFINE_LONGS(HOST_CX, RCX);
DEFINE_LONGS(HOST_DI, RDI);
diff --git a/arch/x86/um/vdso/Makefile b/arch/x86/um/vdso/Makefile
index d72dec406ccb..329406224330 100644
--- a/arch/x86/um/vdso/Makefile
+++ b/arch/x86/um/vdso/Makefile
@@ -53,7 +53,7 @@ CFLAGS_REMOVE_vdso-note.o = -pg -fprofile-arcs -ftest-coverage
CFLAGS_REMOVE_um_vdso.o = -pg -fprofile-arcs -ftest-coverage
targets += vdso-syms.lds
-obj-$(VDSO64-y) += vdso-syms.lds
+extra-$(VDSO64-y) += vdso-syms.lds
#
# Match symbols in the DSO that look like VDSO*; produce a file of constants.
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index 027987638e98..1ecd419811a2 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -17,6 +17,9 @@ config XEN_PV
bool "Xen PV guest support"
default y
depends on XEN
+ # XEN_PV is not ready to work with 5-level paging.
+ # Changes to hypervisor are also required.
+ depends on !X86_5LEVEL
select XEN_HAVE_PVMMU
select XEN_HAVE_VPMU
help
@@ -75,4 +78,6 @@ config XEN_DEBUG_FS
config XEN_PVH
bool "Support for running as a PVH guest"
depends on XEN && XEN_PVHVM && ACPI
+ # Pre-built page tables are not ready to handle 5-level paging.
+ depends on !X86_5LEVEL
def_bool n
diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile
index fffb0a16f9e3..bced7a369a11 100644
--- a/arch/x86/xen/Makefile
+++ b/arch/x86/xen/Makefile
@@ -1,3 +1,6 @@
+OBJECT_FILES_NON_STANDARD_xen-asm_$(BITS).o := y
+OBJECT_FILES_NON_STANDARD_xen-pvh.o := y
+
ifdef CONFIG_FUNCTION_TRACER
# Do not profile debug and lowlevel utilities
CFLAGS_REMOVE_spinlock.o = -pg
diff --git a/arch/x86/xen/apic.c b/arch/x86/xen/apic.c
index bcea81f36fc5..b5e48da7fbff 100644
--- a/arch/x86/xen/apic.c
+++ b/arch/x86/xen/apic.c
@@ -178,7 +178,7 @@ static struct apic xen_pv_apic = {
.get_apic_id = xen_get_apic_id,
.set_apic_id = xen_set_apic_id, /* Can be NULL on 32-bit. */
- .cpu_mask_to_apicid_and = flat_cpu_mask_to_apicid_and,
+ .cpu_mask_to_apicid = flat_cpu_mask_to_apicid,
#ifdef CONFIG_SMP
.send_IPI_mask = xen_send_IPI_mask,
diff --git a/arch/x86/xen/efi.c b/arch/x86/xen/efi.c
index 30bb2e80cfe7..a18703be9ead 100644
--- a/arch/x86/xen/efi.c
+++ b/arch/x86/xen/efi.c
@@ -54,38 +54,6 @@ static efi_system_table_t efi_systab_xen __initdata = {
.tables = EFI_INVALID_TABLE_ADDR /* Initialized later. */
};
-static const struct efi efi_xen __initconst = {
- .systab = NULL, /* Initialized later. */
- .runtime_version = 0, /* Initialized later. */
- .mps = EFI_INVALID_TABLE_ADDR,
- .acpi = EFI_INVALID_TABLE_ADDR,
- .acpi20 = EFI_INVALID_TABLE_ADDR,
- .smbios = EFI_INVALID_TABLE_ADDR,
- .smbios3 = EFI_INVALID_TABLE_ADDR,
- .sal_systab = EFI_INVALID_TABLE_ADDR,
- .boot_info = EFI_INVALID_TABLE_ADDR,
- .hcdp = EFI_INVALID_TABLE_ADDR,
- .uga = EFI_INVALID_TABLE_ADDR,
- .uv_systab = EFI_INVALID_TABLE_ADDR,
- .fw_vendor = EFI_INVALID_TABLE_ADDR,
- .runtime = EFI_INVALID_TABLE_ADDR,
- .config_table = EFI_INVALID_TABLE_ADDR,
- .get_time = xen_efi_get_time,
- .set_time = xen_efi_set_time,
- .get_wakeup_time = xen_efi_get_wakeup_time,
- .set_wakeup_time = xen_efi_set_wakeup_time,
- .get_variable = xen_efi_get_variable,
- .get_next_variable = xen_efi_get_next_variable,
- .set_variable = xen_efi_set_variable,
- .query_variable_info = xen_efi_query_variable_info,
- .update_capsule = xen_efi_update_capsule,
- .query_capsule_caps = xen_efi_query_capsule_caps,
- .get_next_high_mono_count = xen_efi_get_next_high_mono_count,
- .reset_system = xen_efi_reset_system,
- .set_virtual_address_map = NULL, /* Not used under Xen. */
- .flags = 0 /* Initialized later. */
-};
-
static efi_system_table_t __init *xen_efi_probe(void)
{
struct xen_platform_op op = {
@@ -102,7 +70,18 @@ static efi_system_table_t __init *xen_efi_probe(void)
/* Here we know that Xen runs on EFI platform. */
- efi = efi_xen;
+ efi.get_time = xen_efi_get_time;
+ efi.set_time = xen_efi_set_time;
+ efi.get_wakeup_time = xen_efi_get_wakeup_time;
+ efi.set_wakeup_time = xen_efi_set_wakeup_time;
+ efi.get_variable = xen_efi_get_variable;
+ efi.get_next_variable = xen_efi_get_next_variable;
+ efi.set_variable = xen_efi_set_variable;
+ efi.query_variable_info = xen_efi_query_variable_info;
+ efi.update_capsule = xen_efi_update_capsule;
+ efi.query_capsule_caps = xen_efi_query_capsule_caps;
+ efi.get_next_high_mono_count = xen_efi_get_next_high_mono_count;
+ efi.reset_system = xen_efi_reset_system;
efi_systab_xen.tables = info->cfg.addr;
efi_systab_xen.nr_tables = info->cfg.nent;
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index a5ffcbb20cc0..d669e9d89001 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -93,11 +93,11 @@ int xen_cpuhp_setup(int (*cpu_up_prepare_cb)(unsigned int),
int rc;
rc = cpuhp_setup_state_nocalls(CPUHP_XEN_PREPARE,
- "x86/xen/hvm_guest:prepare",
+ "x86/xen/guest:prepare",
cpu_up_prepare_cb, cpu_dead_cb);
if (rc >= 0) {
rc = cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN,
- "x86/xen/hvm_guest:online",
+ "x86/xen/guest:online",
xen_cpu_up_online, NULL);
if (rc < 0)
cpuhp_remove_state_nocalls(CPUHP_XEN_PREPARE);
@@ -106,15 +106,83 @@ int xen_cpuhp_setup(int (*cpu_up_prepare_cb)(unsigned int),
return rc >= 0 ? 0 : rc;
}
-static void clamp_max_cpus(void)
+static int xen_vcpu_setup_restore(int cpu)
{
-#ifdef CONFIG_SMP
- if (setup_max_cpus > MAX_VIRT_CPUS)
- setup_max_cpus = MAX_VIRT_CPUS;
-#endif
+ int rc = 0;
+
+ /* Any per_cpu(xen_vcpu) is stale, so reset it */
+ xen_vcpu_info_reset(cpu);
+
+ /*
+ * For PVH and PVHVM, setup online VCPUs only. The rest will
+ * be handled by hotplug.
+ */
+ if (xen_pv_domain() ||
+ (xen_hvm_domain() && cpu_online(cpu))) {
+ rc = xen_vcpu_setup(cpu);
+ }
+
+ return rc;
+}
+
+/*
+ * On restore, set the vcpu placement up again.
+ * If it fails, then we're in a bad state, since
+ * we can't back out from using it...
+ */
+void xen_vcpu_restore(void)
+{
+ int cpu, rc;
+
+ for_each_possible_cpu(cpu) {
+ bool other_cpu = (cpu != smp_processor_id());
+ bool is_up;
+
+ if (xen_vcpu_nr(cpu) == XEN_VCPU_ID_INVALID)
+ continue;
+
+ /* Only Xen 4.5 and higher support this. */
+ is_up = HYPERVISOR_vcpu_op(VCPUOP_is_up,
+ xen_vcpu_nr(cpu), NULL) > 0;
+
+ if (other_cpu && is_up &&
+ HYPERVISOR_vcpu_op(VCPUOP_down, xen_vcpu_nr(cpu), NULL))
+ BUG();
+
+ if (xen_pv_domain() || xen_feature(XENFEAT_hvm_safe_pvclock))
+ xen_setup_runstate_info(cpu);
+
+ rc = xen_vcpu_setup_restore(cpu);
+ if (rc)
+ pr_emerg_once("vcpu restore failed for cpu=%d err=%d. "
+ "System will hang.\n", cpu, rc);
+ /*
+ * In case xen_vcpu_setup_restore() fails, do not bring up the
+ * VCPU. This helps us avoid the resulting OOPS when the VCPU
+ * accesses pvclock_vcpu_time via xen_vcpu (which is NULL.)
+ * Note that this does not improve the situation much -- now the
+ * VM hangs instead of OOPSing -- with the VCPUs that did not
+ * fail, spinning in stop_machine(), waiting for the failed
+ * VCPUs to come up.
+ */
+ if (other_cpu && is_up && (rc == 0) &&
+ HYPERVISOR_vcpu_op(VCPUOP_up, xen_vcpu_nr(cpu), NULL))
+ BUG();
+ }
}
-void xen_vcpu_setup(int cpu)
+void xen_vcpu_info_reset(int cpu)
+{
+ if (xen_vcpu_nr(cpu) < MAX_VIRT_CPUS) {
+ per_cpu(xen_vcpu, cpu) =
+ &HYPERVISOR_shared_info->vcpu_info[xen_vcpu_nr(cpu)];
+ } else {
+ /* Set to NULL so that if somebody accesses it we get an OOPS */
+ per_cpu(xen_vcpu, cpu) = NULL;
+ }
+}
+
+int xen_vcpu_setup(int cpu)
{
struct vcpu_register_vcpu_info info;
int err;
@@ -123,11 +191,11 @@ void xen_vcpu_setup(int cpu)
BUG_ON(HYPERVISOR_shared_info == &xen_dummy_shared_info);
/*
- * This path is called twice on PVHVM - first during bootup via
- * smp_init -> xen_hvm_cpu_notify, and then if the VCPU is being
- * hotplugged: cpu_up -> xen_hvm_cpu_notify.
- * As we can only do the VCPUOP_register_vcpu_info once lets
- * not over-write its result.
+ * This path is called on PVHVM at bootup (xen_hvm_smp_prepare_boot_cpu)
+ * and at restore (xen_vcpu_restore). Also called for hotplugged
+ * VCPUs (cpu_init -> xen_hvm_cpu_prepare_hvm).
+ * However, the hypercall can only be done once (see below) so if a VCPU
+ * is offlined and comes back online then let's not redo the hypercall.
*
* For PV it is called during restore (xen_vcpu_restore) and bootup
* (xen_setup_vcpu_info_placement). The hotplug mechanism does not
@@ -135,42 +203,44 @@ void xen_vcpu_setup(int cpu)
*/
if (xen_hvm_domain()) {
if (per_cpu(xen_vcpu, cpu) == &per_cpu(xen_vcpu_info, cpu))
- return;
+ return 0;
}
- if (xen_vcpu_nr(cpu) < MAX_VIRT_CPUS)
- per_cpu(xen_vcpu, cpu) =
- &HYPERVISOR_shared_info->vcpu_info[xen_vcpu_nr(cpu)];
- if (!xen_have_vcpu_info_placement) {
- if (cpu >= MAX_VIRT_CPUS)
- clamp_max_cpus();
- return;
+ if (xen_have_vcpu_info_placement) {
+ vcpup = &per_cpu(xen_vcpu_info, cpu);
+ info.mfn = arbitrary_virt_to_mfn(vcpup);
+ info.offset = offset_in_page(vcpup);
+
+ /*
+ * Check to see if the hypervisor will put the vcpu_info
+ * structure where we want it, which allows direct access via
+ * a percpu-variable.
+ * N.B. This hypercall can _only_ be called once per CPU.
+ * Subsequent calls will error out with -EINVAL. This is due to
+ * the fact that hypervisor has no unregister variant and this
+ * hypercall does not allow to over-write info.mfn and
+ * info.offset.
+ */
+ err = HYPERVISOR_vcpu_op(VCPUOP_register_vcpu_info,
+ xen_vcpu_nr(cpu), &info);
+
+ if (err) {
+ pr_warn_once("register_vcpu_info failed: cpu=%d err=%d\n",
+ cpu, err);
+ xen_have_vcpu_info_placement = 0;
+ } else {
+ /*
+ * This cpu is using the registered vcpu info, even if
+ * later ones fail to.
+ */
+ per_cpu(xen_vcpu, cpu) = vcpup;
+ }
}
- vcpup = &per_cpu(xen_vcpu_info, cpu);
- info.mfn = arbitrary_virt_to_mfn(vcpup);
- info.offset = offset_in_page(vcpup);
-
- /* Check to see if the hypervisor will put the vcpu_info
- structure where we want it, which allows direct access via
- a percpu-variable.
- N.B. This hypercall can _only_ be called once per CPU. Subsequent
- calls will error out with -EINVAL. This is due to the fact that
- hypervisor has no unregister variant and this hypercall does not
- allow to over-write info.mfn and info.offset.
- */
- err = HYPERVISOR_vcpu_op(VCPUOP_register_vcpu_info, xen_vcpu_nr(cpu),
- &info);
+ if (!xen_have_vcpu_info_placement)
+ xen_vcpu_info_reset(cpu);
- if (err) {
- printk(KERN_DEBUG "register_vcpu_info failed: err=%d\n", err);
- xen_have_vcpu_info_placement = 0;
- clamp_max_cpus();
- } else {
- /* This cpu is using the registered vcpu info, even if
- later ones fail to. */
- per_cpu(xen_vcpu, cpu) = vcpup;
- }
+ return ((per_cpu(xen_vcpu, cpu) == NULL) ? -ENODEV : 0);
}
void xen_reboot(int reason)
diff --git a/arch/x86/xen/enlighten_hvm.c b/arch/x86/xen/enlighten_hvm.c
index a6d014f47e52..de503c225ae1 100644
--- a/arch/x86/xen/enlighten_hvm.c
+++ b/arch/x86/xen/enlighten_hvm.c
@@ -1,5 +1,6 @@
#include <linux/cpu.h>
#include <linux/kexec.h>
+#include <linux/memblock.h>
#include <xen/features.h>
#include <xen/events.h>
@@ -10,47 +11,59 @@
#include <asm/reboot.h>
#include <asm/setup.h>
#include <asm/hypervisor.h>
+#include <asm/e820/api.h>
+#include <asm/early_ioremap.h>
#include <asm/xen/cpuid.h>
#include <asm/xen/hypervisor.h>
+#include <asm/xen/page.h>
#include "xen-ops.h"
#include "mmu.h"
#include "smp.h"
-void __ref xen_hvm_init_shared_info(void)
+static unsigned long shared_info_pfn;
+
+void xen_hvm_init_shared_info(void)
{
- int cpu;
struct xen_add_to_physmap xatp;
- static struct shared_info *shared_info_page;
- if (!shared_info_page)
- shared_info_page = (struct shared_info *)
- extend_brk(PAGE_SIZE, PAGE_SIZE);
xatp.domid = DOMID_SELF;
xatp.idx = 0;
xatp.space = XENMAPSPACE_shared_info;
- xatp.gpfn = __pa(shared_info_page) >> PAGE_SHIFT;
+ xatp.gpfn = shared_info_pfn;
if (HYPERVISOR_memory_op(XENMEM_add_to_physmap, &xatp))
BUG();
+}
- HYPERVISOR_shared_info = (struct shared_info *)shared_info_page;
+static void __init reserve_shared_info(void)
+{
+ u64 pa;
- /* xen_vcpu is a pointer to the vcpu_info struct in the shared_info
- * page, we use it in the event channel upcall and in some pvclock
- * related functions. We don't need the vcpu_info placement
- * optimizations because we don't use any pv_mmu or pv_irq op on
- * HVM.
- * When xen_hvm_init_shared_info is run at boot time only vcpu 0 is
- * online but xen_hvm_init_shared_info is run at resume time too and
- * in that case multiple vcpus might be online. */
- for_each_online_cpu(cpu) {
- /* Leave it to be NULL. */
- if (xen_vcpu_nr(cpu) >= MAX_VIRT_CPUS)
- continue;
- per_cpu(xen_vcpu, cpu) =
- &HYPERVISOR_shared_info->vcpu_info[xen_vcpu_nr(cpu)];
- }
+ /*
+ * Search for a free page starting at 4kB physical address.
+ * Low memory is preferred to avoid an EPT large page split up
+ * by the mapping.
+ * Starting below X86_RESERVE_LOW (usually 64kB) is fine as
+ * the BIOS used for HVM guests is well behaved and won't
+ * clobber memory other than the first 4kB.
+ */
+ for (pa = PAGE_SIZE;
+ !e820__mapped_all(pa, pa + PAGE_SIZE, E820_TYPE_RAM) ||
+ memblock_is_reserved(pa);
+ pa += PAGE_SIZE)
+ ;
+
+ shared_info_pfn = PHYS_PFN(pa);
+
+ memblock_reserve(pa, PAGE_SIZE);
+ HYPERVISOR_shared_info = early_memremap(pa, PAGE_SIZE);
+}
+
+static void __init xen_hvm_init_mem_mapping(void)
+{
+ early_memunmap(HYPERVISOR_shared_info, PAGE_SIZE);
+ HYPERVISOR_shared_info = __va(PFN_PHYS(shared_info_pfn));
}
static void __init init_hvm_pv_info(void)
@@ -106,7 +119,7 @@ static void xen_hvm_crash_shutdown(struct pt_regs *regs)
static int xen_cpu_up_prepare_hvm(unsigned int cpu)
{
- int rc;
+ int rc = 0;
/*
* This can happen if CPU was offlined earlier and
@@ -121,7 +134,9 @@ static int xen_cpu_up_prepare_hvm(unsigned int cpu)
per_cpu(xen_vcpu_id, cpu) = cpu_acpi_id(cpu);
else
per_cpu(xen_vcpu_id, cpu) = cpu;
- xen_vcpu_setup(cpu);
+ rc = xen_vcpu_setup(cpu);
+ if (rc)
+ return rc;
if (xen_have_vector_callback && xen_feature(XENFEAT_hvm_safe_pvclock))
xen_setup_timer(cpu);
@@ -130,9 +145,8 @@ static int xen_cpu_up_prepare_hvm(unsigned int cpu)
if (rc) {
WARN(1, "xen_smp_intr_init() for CPU %d failed: %d\n",
cpu, rc);
- return rc;
}
- return 0;
+ return rc;
}
static int xen_cpu_dead_hvm(unsigned int cpu)
@@ -152,8 +166,16 @@ static void __init xen_hvm_guest_init(void)
init_hvm_pv_info();
+ reserve_shared_info();
xen_hvm_init_shared_info();
+ /*
+ * xen_vcpu is a pointer to the vcpu_info struct in the shared_info
+ * page, we use it in the event channel upcall and in some pvclock
+ * related functions.
+ */
+ xen_vcpu_info_reset(0);
+
xen_panic_handler_init();
if (xen_feature(XENFEAT_hvm_callback_vector))
@@ -210,5 +232,6 @@ const struct hypervisor_x86 x86_hyper_xen_hvm = {
.init_platform = xen_hvm_guest_init,
.pin_vcpu = xen_pin_vcpu,
.x2apic_available = xen_x2apic_para_available,
+ .init_mem_mapping = xen_hvm_init_mem_mapping,
};
EXPORT_SYMBOL(x86_hyper_xen_hvm);
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index f33eef4ebd12..69b9deff7e5c 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -89,8 +89,6 @@
void *xen_initial_gdt;
-RESERVE_BRK(shared_info_page_brk, PAGE_SIZE);
-
static int xen_cpu_up_prepare_pv(unsigned int cpu);
static int xen_cpu_dead_pv(unsigned int cpu);
@@ -107,35 +105,6 @@ struct tls_descs {
*/
static DEFINE_PER_CPU(struct tls_descs, shadow_tls_desc);
-/*
- * On restore, set the vcpu placement up again.
- * If it fails, then we're in a bad state, since
- * we can't back out from using it...
- */
-void xen_vcpu_restore(void)
-{
- int cpu;
-
- for_each_possible_cpu(cpu) {
- bool other_cpu = (cpu != smp_processor_id());
- bool is_up = HYPERVISOR_vcpu_op(VCPUOP_is_up, xen_vcpu_nr(cpu),
- NULL);
-
- if (other_cpu && is_up &&
- HYPERVISOR_vcpu_op(VCPUOP_down, xen_vcpu_nr(cpu), NULL))
- BUG();
-
- xen_setup_runstate_info(cpu);
-
- if (xen_have_vcpu_info_placement)
- xen_vcpu_setup(cpu);
-
- if (other_cpu && is_up &&
- HYPERVISOR_vcpu_op(VCPUOP_up, xen_vcpu_nr(cpu), NULL))
- BUG();
- }
-}
-
static void __init xen_banner(void)
{
unsigned version = HYPERVISOR_xen_version(XENVER_version, NULL);
@@ -294,6 +263,13 @@ static void __init xen_init_capabilities(void)
setup_clear_cpu_cap(X86_FEATURE_MTRR);
setup_clear_cpu_cap(X86_FEATURE_ACC);
setup_clear_cpu_cap(X86_FEATURE_X2APIC);
+ setup_clear_cpu_cap(X86_FEATURE_SME);
+
+ /*
+ * Xen PV would need some work to support PCID: CR3 handling as well
+ * as xen_flush_tlb_others() would need updating.
+ */
+ setup_clear_cpu_cap(X86_FEATURE_PCID);
if (!xen_initial_domain())
setup_clear_cpu_cap(X86_FEATURE_ACPI);
@@ -525,7 +501,7 @@ static void __init xen_load_gdt_boot(const struct desc_ptr *dtr)
static inline bool desc_equal(const struct desc_struct *d1,
const struct desc_struct *d2)
{
- return d1->a == d2->a && d1->b == d2->b;
+ return !memcmp(d1, d2, sizeof(*d1));
}
static void load_TLS_descriptor(struct thread_struct *t,
@@ -610,59 +586,91 @@ static void xen_write_ldt_entry(struct desc_struct *dt, int entrynum,
preempt_enable();
}
+#ifdef CONFIG_X86_64
+struct trap_array_entry {
+ void (*orig)(void);
+ void (*xen)(void);
+ bool ist_okay;
+};
+
+static struct trap_array_entry trap_array[] = {
+ { debug, xen_xendebug, true },
+ { int3, xen_xenint3, true },
+ { double_fault, xen_double_fault, true },
+#ifdef CONFIG_X86_MCE
+ { machine_check, xen_machine_check, true },
+#endif
+ { nmi, xen_nmi, true },
+ { overflow, xen_overflow, false },
+#ifdef CONFIG_IA32_EMULATION
+ { entry_INT80_compat, xen_entry_INT80_compat, false },
+#endif
+ { page_fault, xen_page_fault, false },
+ { divide_error, xen_divide_error, false },
+ { bounds, xen_bounds, false },
+ { invalid_op, xen_invalid_op, false },
+ { device_not_available, xen_device_not_available, false },
+ { coprocessor_segment_overrun, xen_coprocessor_segment_overrun, false },
+ { invalid_TSS, xen_invalid_TSS, false },
+ { segment_not_present, xen_segment_not_present, false },
+ { stack_segment, xen_stack_segment, false },
+ { general_protection, xen_general_protection, false },
+ { spurious_interrupt_bug, xen_spurious_interrupt_bug, false },
+ { coprocessor_error, xen_coprocessor_error, false },
+ { alignment_check, xen_alignment_check, false },
+ { simd_coprocessor_error, xen_simd_coprocessor_error, false },
+};
+
+static bool get_trap_addr(void **addr, unsigned int ist)
+{
+ unsigned int nr;
+ bool ist_okay = false;
+
+ /*
+ * Replace trap handler addresses by Xen specific ones.
+ * Check for known traps using IST and whitelist them.
+ * The debugger ones are the only ones we care about.
+ * Xen will handle faults like double_fault, * so we should never see
+ * them. Warn if there's an unexpected IST-using fault handler.
+ */
+ for (nr = 0; nr < ARRAY_SIZE(trap_array); nr++) {
+ struct trap_array_entry *entry = trap_array + nr;
+
+ if (*addr == entry->orig) {
+ *addr = entry->xen;
+ ist_okay = entry->ist_okay;
+ break;
+ }
+ }
+
+ if (WARN_ON(ist != 0 && !ist_okay))
+ return false;
+
+ return true;
+}
+#endif
+
static int cvt_gate_to_trap(int vector, const gate_desc *val,
struct trap_info *info)
{
unsigned long addr;
- if (val->type != GATE_TRAP && val->type != GATE_INTERRUPT)
+ if (val->bits.type != GATE_TRAP && val->bits.type != GATE_INTERRUPT)
return 0;
info->vector = vector;
- addr = gate_offset(*val);
+ addr = gate_offset(val);
#ifdef CONFIG_X86_64
- /*
- * Look for known traps using IST, and substitute them
- * appropriately. The debugger ones are the only ones we care
- * about. Xen will handle faults like double_fault,
- * so we should never see them. Warn if
- * there's an unexpected IST-using fault handler.
- */
- if (addr == (unsigned long)debug)
- addr = (unsigned long)xen_debug;
- else if (addr == (unsigned long)int3)
- addr = (unsigned long)xen_int3;
- else if (addr == (unsigned long)stack_segment)
- addr = (unsigned long)xen_stack_segment;
- else if (addr == (unsigned long)double_fault) {
- /* Don't need to handle these */
+ if (!get_trap_addr((void **)&addr, val->bits.ist))
return 0;
-#ifdef CONFIG_X86_MCE
- } else if (addr == (unsigned long)machine_check) {
- /*
- * when xen hypervisor inject vMCE to guest,
- * use native mce handler to handle it
- */
- ;
-#endif
- } else if (addr == (unsigned long)nmi)
- /*
- * Use the native version as well.
- */
- ;
- else {
- /* Some other trap using IST? */
- if (WARN_ON(val->ist != 0))
- return 0;
- }
#endif /* CONFIG_X86_64 */
info->address = addr;
- info->cs = gate_segment(*val);
- info->flags = val->dpl;
+ info->cs = gate_segment(val);
+ info->flags = val->bits.dpl;
/* interrupt gates clear IF */
- if (val->type == GATE_INTERRUPT)
+ if (val->bits.type == GATE_INTERRUPT)
info->flags |= 1 << 2;
return 1;
@@ -960,30 +968,43 @@ void xen_setup_shared_info(void)
HYPERVISOR_shared_info =
(struct shared_info *)fix_to_virt(FIX_PARAVIRT_BOOTMAP);
-#ifndef CONFIG_SMP
- /* In UP this is as good a place as any to set up shared info */
- xen_setup_vcpu_info_placement();
-#endif
-
xen_setup_mfn_list_list();
- /*
- * Now that shared info is set up we can start using routines that
- * point to pvclock area.
- */
- if (system_state == SYSTEM_BOOTING)
+ if (system_state == SYSTEM_BOOTING) {
+#ifndef CONFIG_SMP
+ /*
+ * In UP this is as good a place as any to set up shared info.
+ * Limit this to boot only, at restore vcpu setup is done via
+ * xen_vcpu_restore().
+ */
+ xen_setup_vcpu_info_placement();
+#endif
+ /*
+ * Now that shared info is set up we can start using routines
+ * that point to pvclock area.
+ */
xen_init_time_ops();
+ }
}
/* This is called once we have the cpu_possible_mask */
-void xen_setup_vcpu_info_placement(void)
+void __ref xen_setup_vcpu_info_placement(void)
{
int cpu;
for_each_possible_cpu(cpu) {
/* Set up direct vCPU id mapping for PV guests. */
per_cpu(xen_vcpu_id, cpu) = cpu;
- xen_vcpu_setup(cpu);
+
+ /*
+ * xen_vcpu_setup(cpu) can fail -- in which case it
+ * falls back to the shared_info version for cpus
+ * where xen_vcpu_nr(cpu) < MAX_VIRT_CPUS.
+ *
+ * xen_cpu_up_prepare_pv() handles the rest by failing
+ * them in hotplug.
+ */
+ (void) xen_vcpu_setup(cpu);
}
/*
@@ -999,59 +1020,6 @@ void xen_setup_vcpu_info_placement(void)
}
}
-static unsigned xen_patch(u8 type, u16 clobbers, void *insnbuf,
- unsigned long addr, unsigned len)
-{
- char *start, *end, *reloc;
- unsigned ret;
-
- start = end = reloc = NULL;
-
-#define SITE(op, x) \
- case PARAVIRT_PATCH(op.x): \
- if (xen_have_vcpu_info_placement) { \
- start = (char *)xen_##x##_direct; \
- end = xen_##x##_direct_end; \
- reloc = xen_##x##_direct_reloc; \
- } \
- goto patch_site
-
- switch (type) {
- SITE(pv_irq_ops, irq_enable);
- SITE(pv_irq_ops, irq_disable);
- SITE(pv_irq_ops, save_fl);
- SITE(pv_irq_ops, restore_fl);
-#undef SITE
-
- patch_site:
- if (start == NULL || (end-start) > len)
- goto default_patch;
-
- ret = paravirt_patch_insns(insnbuf, len, start, end);
-
- /* Note: because reloc is assigned from something that
- appears to be an array, gcc assumes it's non-null,
- but doesn't know its relationship with start and
- end. */
- if (reloc > start && reloc < end) {
- int reloc_off = reloc - start;
- long *relocp = (long *)(insnbuf + reloc_off);
- long delta = start - (char *)addr;
-
- *relocp += delta;
- }
- break;
-
- default_patch:
- default:
- ret = paravirt_patch_default(type, clobbers, insnbuf,
- addr, len);
- break;
- }
-
- return ret;
-}
-
static const struct pv_info xen_info __initconst = {
.shared_kernel_pmd = 0,
@@ -1061,10 +1029,6 @@ static const struct pv_info xen_info __initconst = {
.name = "Xen",
};
-static const struct pv_init_ops xen_init_ops __initconst = {
- .patch = xen_patch,
-};
-
static const struct pv_cpu_ops xen_cpu_ops __initconst = {
.cpuid = xen_cpuid,
@@ -1074,7 +1038,6 @@ static const struct pv_cpu_ops xen_cpu_ops __initconst = {
.read_cr0 = xen_read_cr0,
.write_cr0 = xen_write_cr0,
- .read_cr4 = native_read_cr4,
.write_cr4 = xen_write_cr4,
#ifdef CONFIG_X86_64
@@ -1109,7 +1072,6 @@ static const struct pv_cpu_ops xen_cpu_ops __initconst = {
.alloc_ldt = xen_alloc_ldt,
.free_ldt = xen_free_ldt,
- .store_idt = native_store_idt,
.store_tr = xen_store_tr,
.write_ldt_entry = xen_write_ldt_entry,
@@ -1262,7 +1224,7 @@ asmlinkage __visible void __init xen_start_kernel(void)
/* Install Xen paravirt ops */
pv_info = xen_info;
- pv_init_ops = xen_init_ops;
+ pv_init_ops.patch = paravirt_patch_default;
pv_cpu_ops = xen_cpu_ops;
x86_platform.get_nmi_reason = xen_get_nmi_reason;
@@ -1332,9 +1294,17 @@ asmlinkage __visible void __init xen_start_kernel(void)
*/
acpi_numa = -1;
#endif
- /* Don't do the full vcpu_info placement stuff until we have a
- possible map and a non-dummy shared_info. */
- per_cpu(xen_vcpu, 0) = &HYPERVISOR_shared_info->vcpu_info[0];
+ /* Let's presume PV guests always boot on vCPU with id 0. */
+ per_cpu(xen_vcpu_id, 0) = 0;
+
+ /*
+ * Setup xen_vcpu early because start_kernel needs it for
+ * local_irq_disable(), irqs_disabled().
+ *
+ * Don't do the full vcpu_info placement stuff until we have
+ * the cpu_possible_mask and a non-dummy shared_info.
+ */
+ xen_vcpu_info_reset(0);
WARN_ON(xen_cpuhp_setup(xen_cpu_up_prepare_pv, xen_cpu_dead_pv));
@@ -1431,9 +1401,7 @@ asmlinkage __visible void __init xen_start_kernel(void)
#endif
xen_raw_console_write("about to get started...\n");
- /* Let's presume PV guests always boot on vCPU with id 0. */
- per_cpu(xen_vcpu_id, 0) = 0;
-
+ /* We need this for printk timestamps */
xen_setup_runstate_info(0);
xen_efi_init();
@@ -1451,6 +1419,9 @@ static int xen_cpu_up_prepare_pv(unsigned int cpu)
{
int rc;
+ if (per_cpu(xen_vcpu, cpu) == NULL)
+ return -ENODEV;
+
xen_setup_timer(cpu);
rc = xen_smp_intr_init(cpu);
diff --git a/arch/x86/xen/irq.c b/arch/x86/xen/irq.c
index 33e92955e09d..d4eff5676cfa 100644
--- a/arch/x86/xen/irq.c
+++ b/arch/x86/xen/irq.c
@@ -123,9 +123,6 @@ static const struct pv_irq_ops xen_irq_ops __initconst = {
.safe_halt = xen_safe_halt,
.halt = xen_halt,
-#ifdef CONFIG_X86_64
- .adjust_exception_frame = xen_adjust_exception_frame,
-#endif
};
void __init xen_init_irq_ops(void)
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 3be06f3caf3c..3e15345abfe7 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -84,7 +84,7 @@ static int remap_area_mfn_pte_fn(pte_t *ptep, pgtable_t token,
else
rmd->mfn++;
- rmd->mmu_update->ptr = virt_to_machine(ptep).maddr;
+ rmd->mmu_update->ptr = virt_to_machine(ptep).maddr | MMU_NORMAL_PT_UPDATE;
rmd->mmu_update->val = pte_val_ma(pte);
rmd->mmu_update++;
diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index 1f386d7fdf70..71495f1a86d7 100644
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -162,26 +162,6 @@ static bool xen_page_pinned(void *ptr)
return PagePinned(page);
}
-void xen_set_domain_pte(pte_t *ptep, pte_t pteval, unsigned domid)
-{
- struct multicall_space mcs;
- struct mmu_update *u;
-
- trace_xen_mmu_set_domain_pte(ptep, pteval, domid);
-
- mcs = xen_mc_entry(sizeof(*u));
- u = mcs.args;
-
- /* ptep might be kmapped when using 32-bit HIGHPTE */
- u->ptr = virt_to_machine(ptep).maddr;
- u->val = pte_val_ma(pteval);
-
- MULTI_mmu_update(mcs.mc, mcs.args, 1, NULL, domid);
-
- xen_mc_issue(PARAVIRT_LAZY_MMU);
-}
-EXPORT_SYMBOL_GPL(xen_set_domain_pte);
-
static void xen_extend_mmu_update(const struct mmu_update *update)
{
struct multicall_space mcs;
@@ -975,69 +955,63 @@ static void xen_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm)
spin_unlock(&mm->page_table_lock);
}
-
-#ifdef CONFIG_SMP
-/* Another cpu may still have their %cr3 pointing at the pagetable, so
- we need to repoint it somewhere else before we can unpin it. */
-static void drop_other_mm_ref(void *info)
+static void drop_mm_ref_this_cpu(void *info)
{
struct mm_struct *mm = info;
- struct mm_struct *active_mm;
-
- active_mm = this_cpu_read(cpu_tlbstate.active_mm);
- if (active_mm == mm && this_cpu_read(cpu_tlbstate.state) != TLBSTATE_OK)
+ if (this_cpu_read(cpu_tlbstate.loaded_mm) == mm)
leave_mm(smp_processor_id());
- /* If this cpu still has a stale cr3 reference, then make sure
- it has been flushed. */
+ /*
+ * If this cpu still has a stale cr3 reference, then make sure
+ * it has been flushed.
+ */
if (this_cpu_read(xen_current_cr3) == __pa(mm->pgd))
- load_cr3(swapper_pg_dir);
+ xen_mc_flush();
}
+#ifdef CONFIG_SMP
+/*
+ * Another cpu may still have their %cr3 pointing at the pagetable, so
+ * we need to repoint it somewhere else before we can unpin it.
+ */
static void xen_drop_mm_ref(struct mm_struct *mm)
{
cpumask_var_t mask;
unsigned cpu;
- if (current->active_mm == mm) {
- if (current->mm == mm)
- load_cr3(swapper_pg_dir);
- else
- leave_mm(smp_processor_id());
- }
+ drop_mm_ref_this_cpu(mm);
/* Get the "official" set of cpus referring to our pagetable. */
if (!alloc_cpumask_var(&mask, GFP_ATOMIC)) {
for_each_online_cpu(cpu) {
- if (!cpumask_test_cpu(cpu, mm_cpumask(mm))
- && per_cpu(xen_current_cr3, cpu) != __pa(mm->pgd))
+ if (per_cpu(xen_current_cr3, cpu) != __pa(mm->pgd))
continue;
- smp_call_function_single(cpu, drop_other_mm_ref, mm, 1);
+ smp_call_function_single(cpu, drop_mm_ref_this_cpu, mm, 1);
}
return;
}
- cpumask_copy(mask, mm_cpumask(mm));
- /* It's possible that a vcpu may have a stale reference to our
- cr3, because its in lazy mode, and it hasn't yet flushed
- its set of pending hypercalls yet. In this case, we can
- look at its actual current cr3 value, and force it to flush
- if needed. */
+ /*
+ * It's possible that a vcpu may have a stale reference to our
+ * cr3, because its in lazy mode, and it hasn't yet flushed
+ * its set of pending hypercalls yet. In this case, we can
+ * look at its actual current cr3 value, and force it to flush
+ * if needed.
+ */
+ cpumask_clear(mask);
for_each_online_cpu(cpu) {
if (per_cpu(xen_current_cr3, cpu) == __pa(mm->pgd))
cpumask_set_cpu(cpu, mask);
}
- if (!cpumask_empty(mask))
- smp_call_function_many(mask, drop_other_mm_ref, mm, 1);
+ smp_call_function_many(mask, drop_mm_ref_this_cpu, mm, 1);
free_cpumask_var(mask);
}
#else
static void xen_drop_mm_ref(struct mm_struct *mm)
{
- if (current->active_mm == mm)
- load_cr3(swapper_pg_dir);
+ drop_mm_ref_this_cpu(mm);
}
#endif
@@ -1264,21 +1238,16 @@ static void __init xen_pagetable_cleanhighmap(void)
* from _brk_limit way up to the max_pfn_mapped (which is the end of
* the ramdisk). We continue on, erasing PMD entries that point to page
* tables - do note that they are accessible at this stage via __va.
- * For good measure we also round up to the PMD - which means that if
+ * As Xen is aligning the memory end to a 4MB boundary, for good
+ * measure we also round up to PMD_SIZE * 2 - which means that if
* anybody is using __ka address to the initial boot-stack - and try
* to use it - they are going to crash. The xen_start_info has been
* taken care of already in xen_setup_kernel_pagetable. */
addr = xen_start_info->pt_base;
- size = roundup(xen_start_info->nr_pt_frames * PAGE_SIZE, PMD_SIZE);
+ size = xen_start_info->nr_pt_frames * PAGE_SIZE;
- xen_cleanhighmap(addr, addr + size);
+ xen_cleanhighmap(addr, roundup(addr + size, PMD_SIZE * 2));
xen_start_info->pt_base = (unsigned long)__va(__pa(xen_start_info->pt_base));
-#ifdef DEBUG
- /* This is superfluous and is not necessary, but you know what
- * lets do it. The MODULES_VADDR -> MODULES_END should be clear of
- * anything at this stage. */
- xen_cleanhighmap(MODULES_VADDR, roundup(MODULES_VADDR, PUD_SIZE) - 1);
-#endif
}
#endif
@@ -1366,8 +1335,7 @@ static void xen_flush_tlb_single(unsigned long addr)
}
static void xen_flush_tlb_others(const struct cpumask *cpus,
- struct mm_struct *mm, unsigned long start,
- unsigned long end)
+ const struct flush_tlb_info *info)
{
struct {
struct mmuext_op op;
@@ -1379,7 +1347,7 @@ static void xen_flush_tlb_others(const struct cpumask *cpus,
} *args;
struct multicall_space mcs;
- trace_xen_mmu_flush_tlb_others(cpus, mm, start, end);
+ trace_xen_mmu_flush_tlb_others(cpus, info->mm, info->start, info->end);
if (cpumask_empty(cpus))
return; /* nothing to do */
@@ -1393,9 +1361,10 @@ static void xen_flush_tlb_others(const struct cpumask *cpus,
cpumask_clear_cpu(smp_processor_id(), to_cpumask(args->mask));
args->op.cmd = MMUEXT_TLB_FLUSH_MULTI;
- if (end != TLB_FLUSH_ALL && (end - start) <= PAGE_SIZE) {
+ if (info->end != TLB_FLUSH_ALL &&
+ (info->end - info->start) <= PAGE_SIZE) {
args->op.cmd = MMUEXT_INVLPG_MULTI;
- args->op.arg1.linear_addr = start;
+ args->op.arg1.linear_addr = info->start;
}
MULTI_mmuext_op(mcs.mc, &args->op, 1, NULL, DOMID_SELF);
@@ -1470,8 +1439,8 @@ static void xen_write_cr3(unsigned long cr3)
* At the start of the day - when Xen launches a guest, it has already
* built pagetables for the guest. We diligently look over them
* in xen_setup_kernel_pagetable and graft as appropriate them in the
- * init_level4_pgt and its friends. Then when we are happy we load
- * the new init_level4_pgt - and continue on.
+ * init_top_pgt and its friends. Then when we are happy we load
+ * the new init_top_pgt - and continue on.
*
* The generic code starts (start_kernel) and 'init_mem_mapping' sets
* up the rest of the pagetables. When it has completed it loads the cr3.
@@ -1914,12 +1883,12 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn)
pt_end = pt_base + xen_start_info->nr_pt_frames;
/* Zap identity mapping */
- init_level4_pgt[0] = __pgd(0);
+ init_top_pgt[0] = __pgd(0);
/* Pre-constructed entries are in pfn, so convert to mfn */
/* L4[272] -> level3_ident_pgt */
/* L4[511] -> level3_kernel_pgt */
- convert_pfn_mfn(init_level4_pgt);
+ convert_pfn_mfn(init_top_pgt);
/* L3_i[0] -> level2_ident_pgt */
convert_pfn_mfn(level3_ident_pgt);
@@ -1950,10 +1919,10 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn)
/* Copy the initial P->M table mappings if necessary. */
i = pgd_index(xen_start_info->mfn_list);
if (i && i < pgd_index(__START_KERNEL_map))
- init_level4_pgt[i] = ((pgd_t *)xen_start_info->pt_base)[i];
+ init_top_pgt[i] = ((pgd_t *)xen_start_info->pt_base)[i];
/* Make pagetable pieces RO */
- set_page_prot(init_level4_pgt, PAGE_KERNEL_RO);
+ set_page_prot(init_top_pgt, PAGE_KERNEL_RO);
set_page_prot(level3_ident_pgt, PAGE_KERNEL_RO);
set_page_prot(level3_kernel_pgt, PAGE_KERNEL_RO);
set_page_prot(level3_user_vsyscall, PAGE_KERNEL_RO);
@@ -1964,7 +1933,7 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn)
/* Pin down new L4 */
pin_pagetable_pfn(MMUEXT_PIN_L4_TABLE,
- PFN_DOWN(__pa_symbol(init_level4_pgt)));
+ PFN_DOWN(__pa_symbol(init_top_pgt)));
/* Unpin Xen-provided one */
pin_pagetable_pfn(MMUEXT_UNPIN_TABLE, PFN_DOWN(__pa(pgd)));
@@ -1974,7 +1943,7 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn)
* attach it to, so make sure we just set kernel pgd.
*/
xen_mc_batch();
- __xen_write_cr3(true, __pa(init_level4_pgt));
+ __xen_write_cr3(true, __pa(init_top_pgt));
xen_mc_issue(PARAVIRT_LAZY_CPU);
/* We can't that easily rip out L3 and L2, as the Xen pagetables are
@@ -2022,7 +1991,7 @@ static phys_addr_t __init xen_early_virt_to_phys(unsigned long vaddr)
pmd_t pmd;
pte_t pte;
- pa = read_cr3();
+ pa = read_cr3_pa();
pgd = native_make_pgd(xen_read_phys_ulong(pa + pgd_index(vaddr) *
sizeof(pgd)));
if (!pgd_present(pgd))
@@ -2102,7 +2071,7 @@ void __init xen_relocate_p2m(void)
pt_phys = pmd_phys + PFN_PHYS(n_pmd);
p2m_pfn = PFN_DOWN(pt_phys) + n_pt;
- pgd = __va(read_cr3());
+ pgd = __va(read_cr3_pa());
new_p2m = (unsigned long *)(2 * PGDIR_SIZE);
idx_p4d = 0;
save_pud = n_pud;
@@ -2209,7 +2178,7 @@ static void __init xen_write_cr3_init(unsigned long cr3)
{
unsigned long pfn = PFN_DOWN(__pa(swapper_pg_dir));
- BUG_ON(read_cr3() != __pa(initial_page_table));
+ BUG_ON(read_cr3_pa() != __pa(initial_page_table));
BUG_ON(cr3 != __pa(swapper_pg_dir));
/*
@@ -2246,7 +2215,7 @@ static void __init xen_write_cr3_init(unsigned long cr3)
* not the first page table in the page table pool.
* Iterate through the initial page tables to find the real page table base.
*/
-static phys_addr_t xen_find_pt_base(pmd_t *pmd)
+static phys_addr_t __init xen_find_pt_base(pmd_t *pmd)
{
phys_addr_t pt_base, paddr;
unsigned pmdidx;
@@ -2435,8 +2404,6 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = {
.flush_tlb_single = xen_flush_tlb_single,
.flush_tlb_others = xen_flush_tlb_others,
- .pte_update = paravirt_nop,
-
.pgd_alloc = xen_pgd_alloc,
.pgd_free = xen_pgd_free,
@@ -2698,8 +2665,8 @@ EXPORT_SYMBOL_GPL(xen_destroy_contiguous_region);
phys_addr_t paddr_vmcoreinfo_note(void)
{
if (xen_pv_domain())
- return virt_to_machine(&vmcoreinfo_note).maddr;
+ return virt_to_machine(vmcoreinfo_note).maddr;
else
- return __pa_symbol(&vmcoreinfo_note);
+ return __pa(vmcoreinfo_note);
}
#endif /* CONFIG_KEXEC_CORE */
diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index 276da636dd39..6083ba462f35 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -212,8 +212,7 @@ void __ref xen_build_mfn_list_list(void)
unsigned int level, topidx, mididx;
unsigned long *mid_mfn_p;
- if (xen_feature(XENFEAT_auto_translated_physmap) ||
- xen_start_info->flags & SIF_VIRT_P2M_4TOOLS)
+ if (xen_start_info->flags & SIF_VIRT_P2M_4TOOLS)
return;
/* Pre-initialize p2m_top_mfn to be completely missing */
@@ -269,9 +268,6 @@ void __ref xen_build_mfn_list_list(void)
void xen_setup_mfn_list_list(void)
{
- if (xen_feature(XENFEAT_auto_translated_physmap))
- return;
-
BUG_ON(HYPERVISOR_shared_info == &xen_dummy_shared_info);
if (xen_start_info->flags & SIF_VIRT_P2M_4TOOLS)
@@ -291,9 +287,6 @@ void __init xen_build_dynamic_phys_to_machine(void)
{
unsigned long pfn;
- if (xen_feature(XENFEAT_auto_translated_physmap))
- return;
-
xen_p2m_addr = (unsigned long *)xen_start_info->mfn_list;
xen_p2m_size = ALIGN(xen_start_info->nr_pages, P2M_PER_PAGE);
@@ -540,9 +533,6 @@ int xen_alloc_p2m_entry(unsigned long pfn)
unsigned long addr = (unsigned long)(xen_p2m_addr + pfn);
unsigned long p2m_pfn;
- if (xen_feature(XENFEAT_auto_translated_physmap))
- return 0;
-
ptep = lookup_address(addr, &level);
BUG_ON(!ptep || level != PG_LEVEL_4K);
pte_pg = (pte_t *)((unsigned long)ptep & ~(PAGE_SIZE - 1));
@@ -640,9 +630,6 @@ unsigned long __init set_phys_range_identity(unsigned long pfn_s,
if (unlikely(pfn_s >= xen_p2m_size))
return 0;
- if (unlikely(xen_feature(XENFEAT_auto_translated_physmap)))
- return pfn_e - pfn_s;
-
if (pfn_s > pfn_e)
return 0;
@@ -660,10 +647,6 @@ bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn)
pte_t *ptep;
unsigned int level;
- /* don't track P2M changes in autotranslate guests */
- if (unlikely(xen_feature(XENFEAT_auto_translated_physmap)))
- return true;
-
if (unlikely(pfn >= xen_p2m_size)) {
BUG_ON(mfn != INVALID_P2M_ENTRY);
return true;
@@ -711,9 +694,6 @@ int set_foreign_p2m_mapping(struct gnttab_map_grant_ref *map_ops,
int i, ret = 0;
pte_t *pte;
- if (xen_feature(XENFEAT_auto_translated_physmap))
- return 0;
-
if (kmap_ops) {
ret = HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref,
kmap_ops, count);
@@ -756,9 +736,6 @@ int clear_foreign_p2m_mapping(struct gnttab_unmap_grant_ref *unmap_ops,
{
int i, ret = 0;
- if (xen_feature(XENFEAT_auto_translated_physmap))
- return 0;
-
for (i = 0; i < count; i++) {
unsigned long mfn = __pfn_to_mfn(page_to_pfn(pages[i]));
unsigned long pfn = page_to_pfn(pages[i]);
diff --git a/arch/x86/xen/pci-swiotlb-xen.c b/arch/x86/xen/pci-swiotlb-xen.c
index 42b08f8fc2ca..37c6056a7bba 100644
--- a/arch/x86/xen/pci-swiotlb-xen.c
+++ b/arch/x86/xen/pci-swiotlb-xen.c
@@ -18,20 +18,6 @@
int xen_swiotlb __read_mostly;
-static const struct dma_map_ops xen_swiotlb_dma_ops = {
- .alloc = xen_swiotlb_alloc_coherent,
- .free = xen_swiotlb_free_coherent,
- .sync_single_for_cpu = xen_swiotlb_sync_single_for_cpu,
- .sync_single_for_device = xen_swiotlb_sync_single_for_device,
- .sync_sg_for_cpu = xen_swiotlb_sync_sg_for_cpu,
- .sync_sg_for_device = xen_swiotlb_sync_sg_for_device,
- .map_sg = xen_swiotlb_map_sg_attrs,
- .unmap_sg = xen_swiotlb_unmap_sg_attrs,
- .map_page = xen_swiotlb_map_page,
- .unmap_page = xen_swiotlb_unmap_page,
- .dma_supported = xen_swiotlb_dma_supported,
-};
-
/*
* pci_xen_swiotlb_detect - set xen_swiotlb to 1 if necessary
*
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index a5bf7c451435..ac55c02f98e9 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -340,8 +340,6 @@ static void __init xen_do_set_identity_and_remap_chunk(
WARN_ON(size == 0);
- BUG_ON(xen_feature(XENFEAT_auto_translated_physmap));
-
mfn_save = virt_to_mfn(buf);
for (ident_pfn_iter = start_pfn, remap_pfn_iter = remap_pfn;
@@ -499,7 +497,7 @@ static unsigned long __init xen_foreach_remap_area(unsigned long nr_pages,
void __init xen_remap_memory(void)
{
unsigned long buf = (unsigned long)&xen_remap_buf;
- unsigned long mfn_save, mfn, pfn;
+ unsigned long mfn_save, pfn;
unsigned long remapped = 0;
unsigned int i;
unsigned long pfn_s = ~0UL;
@@ -515,8 +513,7 @@ void __init xen_remap_memory(void)
pfn = xen_remap_buf.target_pfn;
for (i = 0; i < xen_remap_buf.size; i++) {
- mfn = xen_remap_buf.mfns[i];
- xen_update_mem_tables(pfn, mfn);
+ xen_update_mem_tables(pfn, xen_remap_buf.mfns[i]);
remapped++;
pfn++;
}
@@ -530,8 +527,6 @@ void __init xen_remap_memory(void)
pfn_s = xen_remap_buf.target_pfn;
len = xen_remap_buf.size;
}
-
- mfn = xen_remap_mfn;
xen_remap_mfn = xen_remap_buf.next_area_mfn;
}
@@ -1027,8 +1022,7 @@ void __init xen_pvmmu_arch_setup(void)
void __init xen_arch_setup(void)
{
xen_panic_handler_init();
- if (!xen_feature(XENFEAT_auto_translated_physmap))
- xen_pvmmu_arch_setup();
+ xen_pvmmu_arch_setup();
#ifdef CONFIG_ACPI
if (!(xen_start_info->flags & SIF_INITDOMAIN)) {
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 82ac611f2fc1..e7f02eb73727 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -1,4 +1,5 @@
#include <linux/smp.h>
+#include <linux/cpu.h>
#include <linux/slab.h>
#include <linux/cpumask.h>
#include <linux/percpu.h>
@@ -114,6 +115,36 @@ int xen_smp_intr_init(unsigned int cpu)
return rc;
}
+void __init xen_smp_cpus_done(unsigned int max_cpus)
+{
+ int cpu, rc, count = 0;
+
+ if (xen_hvm_domain())
+ native_smp_cpus_done(max_cpus);
+
+ if (xen_have_vcpu_info_placement)
+ return;
+
+ for_each_online_cpu(cpu) {
+ if (xen_vcpu_nr(cpu) < MAX_VIRT_CPUS)
+ continue;
+
+ rc = cpu_down(cpu);
+
+ if (rc == 0) {
+ /*
+ * Reset vcpu_info so this cpu cannot be onlined again.
+ */
+ xen_vcpu_info_reset(cpu);
+ count++;
+ } else {
+ pr_warn("%s: failed to bring CPU %d down, error %d\n",
+ __func__, cpu, rc);
+ }
+ }
+ WARN(count, "%s: brought %d CPUs offline\n", __func__, count);
+}
+
void xen_smp_send_reschedule(int cpu)
{
xen_send_IPI_one(cpu, XEN_RESCHEDULE_VECTOR);
diff --git a/arch/x86/xen/smp.h b/arch/x86/xen/smp.h
index 8ebb6acca64a..87d3c76cba37 100644
--- a/arch/x86/xen/smp.h
+++ b/arch/x86/xen/smp.h
@@ -14,6 +14,8 @@ extern void xen_smp_intr_free(unsigned int cpu);
int xen_smp_intr_init_pv(unsigned int cpu);
void xen_smp_intr_free_pv(unsigned int cpu);
+void xen_smp_cpus_done(unsigned int max_cpus);
+
void xen_smp_send_reschedule(int cpu);
void xen_smp_send_call_function_ipi(const struct cpumask *mask);
void xen_smp_send_call_function_single_ipi(int cpu);
diff --git a/arch/x86/xen/smp_hvm.c b/arch/x86/xen/smp_hvm.c
index f18561bbf5c9..fd60abedf658 100644
--- a/arch/x86/xen/smp_hvm.c
+++ b/arch/x86/xen/smp_hvm.c
@@ -12,7 +12,8 @@ static void __init xen_hvm_smp_prepare_boot_cpu(void)
native_smp_prepare_boot_cpu();
/*
- * Setup vcpu_info for boot CPU.
+ * Setup vcpu_info for boot CPU. Secondary CPUs get their vcpu_info
+ * in xen_cpu_up_prepare_hvm().
*/
xen_vcpu_setup(0);
@@ -27,10 +28,20 @@ static void __init xen_hvm_smp_prepare_boot_cpu(void)
static void __init xen_hvm_smp_prepare_cpus(unsigned int max_cpus)
{
+ int cpu;
+
native_smp_prepare_cpus(max_cpus);
WARN_ON(xen_smp_intr_init(0));
xen_init_lock_cpu(0);
+
+ for_each_possible_cpu(cpu) {
+ if (cpu == 0)
+ continue;
+
+ /* Set default vcpu_id to make sure that we don't use cpu-0's */
+ per_cpu(xen_vcpu_id, cpu) = XEN_VCPU_ID_INVALID;
+ }
}
#ifdef CONFIG_HOTPLUG_CPU
@@ -60,4 +71,5 @@ void __init xen_hvm_smp_init(void)
smp_ops.send_call_func_ipi = xen_smp_send_call_function_ipi;
smp_ops.send_call_func_single_ipi = xen_smp_send_call_function_single_ipi;
smp_ops.smp_prepare_boot_cpu = xen_hvm_smp_prepare_boot_cpu;
+ smp_ops.smp_cpus_done = xen_smp_cpus_done;
}
diff --git a/arch/x86/xen/smp_pv.c b/arch/x86/xen/smp_pv.c
index aae32535f4ec..51471408fdd1 100644
--- a/arch/x86/xen/smp_pv.c
+++ b/arch/x86/xen/smp_pv.c
@@ -19,6 +19,7 @@
#include <linux/irq_work.h>
#include <linux/tick.h>
#include <linux/nmi.h>
+#include <linux/cpuhotplug.h>
#include <asm/paravirt.h>
#include <asm/desc.h>
@@ -371,10 +372,6 @@ static int xen_pv_cpu_up(unsigned int cpu, struct task_struct *idle)
return 0;
}
-static void xen_pv_smp_cpus_done(unsigned int max_cpus)
-{
-}
-
#ifdef CONFIG_HOTPLUG_CPU
static int xen_pv_cpu_disable(void)
{
@@ -417,7 +414,7 @@ static void xen_pv_play_dead(void) /* used only with HOTPLUG_CPU */
*/
tick_nohz_idle_enter();
- cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
+ cpuhp_online_idle(CPUHP_AP_ONLINE_IDLE);
}
#else /* !CONFIG_HOTPLUG_CPU */
@@ -469,7 +466,7 @@ static irqreturn_t xen_irq_work_interrupt(int irq, void *dev_id)
static const struct smp_ops xen_smp_ops __initconst = {
.smp_prepare_boot_cpu = xen_pv_smp_prepare_boot_cpu,
.smp_prepare_cpus = xen_pv_smp_prepare_cpus,
- .smp_cpus_done = xen_pv_smp_cpus_done,
+ .smp_cpus_done = xen_smp_cpus_done,
.cpu_up = xen_pv_cpu_up,
.cpu_die = xen_pv_cpu_die,
diff --git a/arch/x86/xen/suspend_hvm.c b/arch/x86/xen/suspend_hvm.c
index 01afcadde50a..484999416d8b 100644
--- a/arch/x86/xen/suspend_hvm.c
+++ b/arch/x86/xen/suspend_hvm.c
@@ -8,15 +8,10 @@
void xen_hvm_post_suspend(int suspend_cancelled)
{
- int cpu;
-
- if (!suspend_cancelled)
+ if (!suspend_cancelled) {
xen_hvm_init_shared_info();
+ xen_vcpu_restore();
+ }
xen_callback_vector();
xen_unplug_emulated_devices();
- if (xen_feature(XENFEAT_hvm_safe_pvclock)) {
- for_each_online_cpu(cpu) {
- xen_setup_runstate_info(cpu);
- }
- }
}
diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
index a1895a8e85c1..1ecb05db3632 100644
--- a/arch/x86/xen/time.c
+++ b/arch/x86/xen/time.c
@@ -309,7 +309,6 @@ static irqreturn_t xen_timer_interrupt(int irq, void *dev_id)
void xen_teardown_timer(int cpu)
{
struct clock_event_device *evt;
- BUG_ON(cpu == 0);
evt = &per_cpu(xen_clock_events, cpu).evt;
if (evt->irq >= 0) {
diff --git a/arch/x86/xen/xen-asm.S b/arch/x86/xen/xen-asm.S
index eff224df813f..dcd31fa39b5d 100644
--- a/arch/x86/xen/xen-asm.S
+++ b/arch/x86/xen/xen-asm.S
@@ -1,14 +1,8 @@
/*
- * Asm versions of Xen pv-ops, suitable for either direct use or
- * inlining. The inline versions are the same as the direct-use
- * versions, with the pre- and post-amble chopped off.
- *
- * This code is encoded for size rather than absolute efficiency, with
- * a view to being able to inline as much as possible.
+ * Asm versions of Xen pv-ops, suitable for direct use.
*
* We only bother with direct forms (ie, vcpu in percpu data) of the
- * operations here; the indirect forms are better handled in C, since
- * they're generally too large to inline anyway.
+ * operations here; the indirect forms are better handled in C.
*/
#include <asm/asm-offsets.h>
@@ -16,7 +10,7 @@
#include <asm/processor-flags.h>
#include <asm/frame.h>
-#include "xen-asm.h"
+#include <linux/linkage.h>
/*
* Enable events. This clears the event mask and tests the pending
@@ -38,13 +32,11 @@ ENTRY(xen_irq_enable_direct)
testb $0xff, PER_CPU_VAR(xen_vcpu_info) + XEN_vcpu_info_pending
jz 1f
-2: call check_events
+ call check_events
1:
-ENDPATCH(xen_irq_enable_direct)
FRAME_END
ret
ENDPROC(xen_irq_enable_direct)
- RELOC(xen_irq_enable_direct, 2b+1)
/*
@@ -53,10 +45,8 @@ ENDPATCH(xen_irq_enable_direct)
*/
ENTRY(xen_irq_disable_direct)
movb $1, PER_CPU_VAR(xen_vcpu_info) + XEN_vcpu_info_mask
-ENDPATCH(xen_irq_disable_direct)
ret
- ENDPROC(xen_irq_disable_direct)
- RELOC(xen_irq_disable_direct, 0)
+ENDPROC(xen_irq_disable_direct)
/*
* (xen_)save_fl is used to get the current interrupt enable status.
@@ -71,10 +61,8 @@ ENTRY(xen_save_fl_direct)
testb $0xff, PER_CPU_VAR(xen_vcpu_info) + XEN_vcpu_info_mask
setz %ah
addb %ah, %ah
-ENDPATCH(xen_save_fl_direct)
ret
ENDPROC(xen_save_fl_direct)
- RELOC(xen_save_fl_direct, 0)
/*
@@ -101,13 +89,11 @@ ENTRY(xen_restore_fl_direct)
/* check for unmasked and pending */
cmpw $0x0001, PER_CPU_VAR(xen_vcpu_info) + XEN_vcpu_info_pending
jnz 1f
-2: call check_events
+ call check_events
1:
-ENDPATCH(xen_restore_fl_direct)
FRAME_END
ret
ENDPROC(xen_restore_fl_direct)
- RELOC(xen_restore_fl_direct, 2b+1)
/*
diff --git a/arch/x86/xen/xen-asm.h b/arch/x86/xen/xen-asm.h
deleted file mode 100644
index 465276467a47..000000000000
--- a/arch/x86/xen/xen-asm.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _XEN_XEN_ASM_H
-#define _XEN_XEN_ASM_H
-
-#include <linux/linkage.h>
-
-#define RELOC(x, v) .globl x##_reloc; x##_reloc=v
-#define ENDPATCH(x) .globl x##_end; x##_end=.
-
-/* Pseudo-flag used for virtual NMI, which we don't implement yet */
-#define XEN_EFLAGS_NMI 0x80000000
-
-#endif
diff --git a/arch/x86/xen/xen-asm_32.S b/arch/x86/xen/xen-asm_32.S
index feb6d40a0860..1200e262a116 100644
--- a/arch/x86/xen/xen-asm_32.S
+++ b/arch/x86/xen/xen-asm_32.S
@@ -1,14 +1,8 @@
/*
- * Asm versions of Xen pv-ops, suitable for either direct use or
- * inlining. The inline versions are the same as the direct-use
- * versions, with the pre- and post-amble chopped off.
- *
- * This code is encoded for size rather than absolute efficiency, with
- * a view to being able to inline as much as possible.
+ * Asm versions of Xen pv-ops, suitable for direct use.
*
* We only bother with direct forms (ie, vcpu in pda) of the
- * operations here; the indirect forms are better handled in C, since
- * they're generally too large to inline anyway.
+ * operations here; the indirect forms are better handled in C.
*/
#include <asm/thread_info.h>
@@ -18,21 +12,10 @@
#include <xen/interface/xen.h>
-#include "xen-asm.h"
+#include <linux/linkage.h>
-/*
- * Force an event check by making a hypercall, but preserve regs
- * before making the call.
- */
-check_events:
- push %eax
- push %ecx
- push %edx
- call xen_force_evtchn_callback
- pop %edx
- pop %ecx
- pop %eax
- ret
+/* Pseudo-flag used for virtual NMI, which we don't implement yet */
+#define XEN_EFLAGS_NMI 0x80000000
/*
* This is run where a normal iret would be run, with the same stack setup:
diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S
index c3df43141e70..dae2cc33afb5 100644
--- a/arch/x86/xen/xen-asm_64.S
+++ b/arch/x86/xen/xen-asm_64.S
@@ -1,14 +1,8 @@
/*
- * Asm versions of Xen pv-ops, suitable for either direct use or
- * inlining. The inline versions are the same as the direct-use
- * versions, with the pre- and post-amble chopped off.
- *
- * This code is encoded for size rather than absolute efficiency, with
- * a view to being able to inline as much as possible.
+ * Asm versions of Xen pv-ops, suitable for direct use.
*
* We only bother with direct forms (ie, vcpu in pda) of the
- * operations here; the indirect forms are better handled in C, since
- * they're generally too large to inline anyway.
+ * operations here; the indirect forms are better handled in C.
*/
#include <asm/errno.h>
@@ -20,13 +14,44 @@
#include <xen/interface/xen.h>
-#include "xen-asm.h"
+#include <linux/linkage.h>
+
+.macro xen_pv_trap name
+ENTRY(xen_\name)
+ pop %rcx
+ pop %r11
+ jmp \name
+END(xen_\name)
+.endm
-ENTRY(xen_adjust_exception_frame)
- mov 8+0(%rsp), %rcx
- mov 8+8(%rsp), %r11
- ret $16
-ENDPROC(xen_adjust_exception_frame)
+xen_pv_trap divide_error
+xen_pv_trap debug
+xen_pv_trap xendebug
+xen_pv_trap int3
+xen_pv_trap xenint3
+xen_pv_trap nmi
+xen_pv_trap overflow
+xen_pv_trap bounds
+xen_pv_trap invalid_op
+xen_pv_trap device_not_available
+xen_pv_trap double_fault
+xen_pv_trap coprocessor_segment_overrun
+xen_pv_trap invalid_TSS
+xen_pv_trap segment_not_present
+xen_pv_trap stack_segment
+xen_pv_trap general_protection
+xen_pv_trap page_fault
+xen_pv_trap spurious_interrupt_bug
+xen_pv_trap coprocessor_error
+xen_pv_trap alignment_check
+#ifdef CONFIG_X86_MCE
+xen_pv_trap machine_check
+#endif /* CONFIG_X86_MCE */
+xen_pv_trap simd_coprocessor_error
+#ifdef CONFIG_IA32_EMULATION
+xen_pv_trap entry_INT80_compat
+#endif
+xen_pv_trap hypervisor_callback
hypercall_iret = hypercall_page + __HYPERVISOR_iret * 32
/*
@@ -46,9 +71,7 @@ hypercall_iret = hypercall_page + __HYPERVISOR_iret * 32
*/
ENTRY(xen_iret)
pushq $0
-1: jmp hypercall_iret
-ENDPATCH(xen_iret)
-RELOC(xen_iret, 1b+1)
+ jmp hypercall_iret
ENTRY(xen_sysret64)
/*
@@ -65,9 +88,7 @@ ENTRY(xen_sysret64)
pushq %rcx
pushq $VGCF_in_syscall
-1: jmp hypercall_iret
-ENDPATCH(xen_sysret64)
-RELOC(xen_sysret64, 1b+1)
+ jmp hypercall_iret
/*
* Xen handles syscall callbacks much like ordinary exceptions, which
@@ -82,34 +103,47 @@ RELOC(xen_sysret64, 1b+1)
* rip
* r11
* rsp->rcx
- *
- * In all the entrypoints, we undo all that to make it look like a
- * CPU-generated syscall/sysenter and jump to the normal entrypoint.
*/
-.macro undo_xen_syscall
- mov 0*8(%rsp), %rcx
- mov 1*8(%rsp), %r11
- mov 5*8(%rsp), %rsp
-.endm
-
/* Normal 64-bit system call target */
ENTRY(xen_syscall_target)
- undo_xen_syscall
- jmp entry_SYSCALL_64_after_swapgs
+ popq %rcx
+ popq %r11
+
+ /*
+ * Neither Xen nor the kernel really knows what the old SS and
+ * CS were. The kernel expects __USER_DS and __USER_CS, so
+ * report those values even though Xen will guess its own values.
+ */
+ movq $__USER_DS, 4*8(%rsp)
+ movq $__USER_CS, 1*8(%rsp)
+
+ jmp entry_SYSCALL_64_after_hwframe
ENDPROC(xen_syscall_target)
#ifdef CONFIG_IA32_EMULATION
/* 32-bit compat syscall target */
ENTRY(xen_syscall32_target)
- undo_xen_syscall
- jmp entry_SYSCALL_compat
+ popq %rcx
+ popq %r11
+
+ /*
+ * Neither Xen nor the kernel really knows what the old SS and
+ * CS were. The kernel expects __USER32_DS and __USER32_CS, so
+ * report those values even though Xen will guess its own values.
+ */
+ movq $__USER32_DS, 4*8(%rsp)
+ movq $__USER32_CS, 1*8(%rsp)
+
+ jmp entry_SYSCALL_compat_after_hwframe
ENDPROC(xen_syscall32_target)
/* 32-bit compat sysenter target */
ENTRY(xen_sysenter_target)
- undo_xen_syscall
+ mov 0*8(%rsp), %rcx
+ mov 1*8(%rsp), %r11
+ mov 5*8(%rsp), %rsp
jmp entry_SYSENTER_compat
ENDPROC(xen_sysenter_target)
diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
index 72a8e6adebe6..a7525e95d53f 100644
--- a/arch/x86/xen/xen-head.S
+++ b/arch/x86/xen/xen-head.S
@@ -58,7 +58,7 @@ ENTRY(hypercall_page)
#else
ELFNOTE(Xen, XEN_ELFNOTE_VIRT_BASE, _ASM_PTR __START_KERNEL_map)
/* Map the p2m table to a 512GB-aligned user address. */
- ELFNOTE(Xen, XEN_ELFNOTE_INIT_P2M, .quad PGDIR_SIZE)
+ ELFNOTE(Xen, XEN_ELFNOTE_INIT_P2M, .quad (PUD_SIZE * PTRS_PER_PUD))
#endif
#ifdef CONFIG_XEN_PV
ELFNOTE(Xen, XEN_ELFNOTE_ENTRY, _ASM_PTR startup_xen)
diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
index 9a440a42c618..c8a6d224f7ed 100644
--- a/arch/x86/xen/xen-ops.h
+++ b/arch/x86/xen/xen-ops.h
@@ -78,7 +78,8 @@ bool xen_vcpu_stolen(int vcpu);
extern int xen_have_vcpu_info_placement;
-void xen_vcpu_setup(int cpu);
+int xen_vcpu_setup(int cpu);
+void xen_vcpu_info_reset(int cpu);
void xen_setup_vcpu_info_placement(void);
#ifdef CONFIG_SMP
@@ -128,23 +129,15 @@ static inline void __init xen_efi_init(void)
}
#endif
-/* Declare an asm function, along with symbols needed to make it
- inlineable */
-#define DECL_ASM(ret, name, ...) \
- __visible ret name(__VA_ARGS__); \
- extern char name##_end[] __visible; \
- extern char name##_reloc[] __visible
-
-DECL_ASM(void, xen_irq_enable_direct, void);
-DECL_ASM(void, xen_irq_disable_direct, void);
-DECL_ASM(unsigned long, xen_save_fl_direct, void);
-DECL_ASM(void, xen_restore_fl_direct, unsigned long);
+__visible void xen_irq_enable_direct(void);
+__visible void xen_irq_disable_direct(void);
+__visible unsigned long xen_save_fl_direct(void);
+__visible void xen_restore_fl_direct(unsigned long);
/* These are not functions, and cannot be called normally */
__visible void xen_iret(void);
__visible void xen_sysret32(void);
__visible void xen_sysret64(void);
-__visible void xen_adjust_exception_frame(void);
extern int xen_panic_handler_init(void);
diff --git a/arch/x86/xen/xen-pvh.S b/arch/x86/xen/xen-pvh.S
index 5e246716d58f..e1a5fbeae08d 100644
--- a/arch/x86/xen/xen-pvh.S
+++ b/arch/x86/xen/xen-pvh.S
@@ -87,7 +87,7 @@ ENTRY(pvh_start_xen)
wrmsr
/* Enable pre-constructed page tables. */
- mov $_pa(init_level4_pgt), %eax
+ mov $_pa(init_top_pgt), %eax
mov %eax, %cr3
mov $(X86_CR0_PG | X86_CR0_PE), %eax
mov %eax, %cr0
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index f4126cf997a4..7ad6d77b2f22 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -3,6 +3,7 @@ config ZONE_DMA
config XTENSA
def_bool y
+ select ARCH_NO_COHERENT_DMA_MMAP if !MMU
select ARCH_WANT_FRAME_POINTERS
select ARCH_WANT_IPC_PARSE_VERSION
select BUILDTIME_EXTABLE_SORT
diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
index cc23e9ecc6bb..dff7cc39437c 100644
--- a/arch/xtensa/include/asm/Kbuild
+++ b/arch/xtensa/include/asm/Kbuild
@@ -1,35 +1,29 @@
-generic-y += bitsperlong.h
generic-y += bug.h
generic-y += clkdev.h
+generic-y += device.h
generic-y += div64.h
generic-y += dma-contiguous.h
generic-y += emergency-restart.h
-generic-y += errno.h
generic-y += exec.h
generic-y += extable.h
-generic-y += fcntl.h
+generic-y += fb.h
generic-y += hardirq.h
-generic-y += ioctl.h
generic-y += irq_regs.h
generic-y += irq_work.h
generic-y += kdebug.h
generic-y += kmap_types.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
generic-y += linkage.h
generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
+generic-y += param.h
generic-y += percpu.h
generic-y += preempt.h
-generic-y += resource.h
generic-y += rwsem.h
generic-y += sections.h
-generic-y += siginfo.h
-generic-y += statfs.h
-generic-y += termios.h
generic-y += topology.h
generic-y += trace_clock.h
generic-y += word-at-a-time.h
generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/xtensa/include/asm/device.h b/arch/xtensa/include/asm/device.h
deleted file mode 100644
index 1deeb8ebbb1b..000000000000
--- a/arch/xtensa/include/asm/device.h
+++ /dev/null
@@ -1,15 +0,0 @@
-/*
- * Arch specific extensions to struct device
- *
- * This file is released under the GPLv2
- */
-#ifndef _ASM_XTENSA_DEVICE_H
-#define _ASM_XTENSA_DEVICE_H
-
-struct dev_archdata {
-};
-
-struct pdev_archdata {
-};
-
-#endif /* _ASM_XTENSA_DEVICE_H */
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index c6140fa8c0be..269738dc9d1d 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -16,8 +16,6 @@
#include <linux/mm.h>
#include <linux/scatterlist.h>
-#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-
extern const struct dma_map_ops xtensa_dma_map_ops;
static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
diff --git a/arch/xtensa/include/asm/fb.h b/arch/xtensa/include/asm/fb.h
deleted file mode 100644
index c7df38030992..000000000000
--- a/arch/xtensa/include/asm/fb.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _ASM_FB_H_
-#define _ASM_FB_H_
-#include <linux/fb.h>
-
-#define fb_pgprotect(...) do {} while (0)
-
-static inline int fb_is_primary_device(struct fb_info *info)
-{
- return 0;
-}
-
-#endif /* _ASM_FB_H_ */
diff --git a/arch/xtensa/include/asm/flat.h b/arch/xtensa/include/asm/flat.h
index 94c44abf15e4..60e0d6a45795 100644
--- a/arch/xtensa/include/asm/flat.h
+++ b/arch/xtensa/include/asm/flat.h
@@ -1,11 +1,22 @@
#ifndef __ASM_XTENSA_FLAT_H
#define __ASM_XTENSA_FLAT_H
+#include <asm/unaligned.h>
+
#define flat_argvp_envp_on_stack() 0
#define flat_old_ram_flag(flags) (flags)
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, p) get_unaligned(rp)
-#define flat_put_addr_at_rp(rp, val, relval ) put_unaligned(val, rp)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+ *addr = get_unaligned((__force u32 *)rp);
+ return 0;
+}
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+ put_unaligned(addr, (__force u32 *)rp);
+ return 0;
+}
#define flat_get_relocate_addr(rel) (rel)
#define flat_set_persistent(relval, p) 0
diff --git a/arch/xtensa/include/asm/futex.h b/arch/xtensa/include/asm/futex.h
index b39531babec0..eaaf1ebcc7a4 100644
--- a/arch/xtensa/include/asm/futex.h
+++ b/arch/xtensa/include/asm/futex.h
@@ -44,18 +44,10 @@
: "r" (uaddr), "I" (-EFAULT), "r" (oparg) \
: "memory")
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+ u32 __user *uaddr)
{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
int oldval = 0, ret;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
- return -EFAULT;
#if !XCHAL_HAVE_S32C1I
return -ENOSYS;
@@ -89,19 +81,10 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
pagefault_enable();
- if (ret)
- return ret;
+ if (!ret)
+ *oval = oldval;
- switch (cmp) {
- case FUTEX_OP_CMP_EQ: return (oldval == cmparg);
- case FUTEX_OP_CMP_NE: return (oldval != cmparg);
- case FUTEX_OP_CMP_LT: return (oldval < cmparg);
- case FUTEX_OP_CMP_GE: return (oldval >= cmparg);
- case FUTEX_OP_CMP_LE: return (oldval <= cmparg);
- case FUTEX_OP_CMP_GT: return (oldval > cmparg);
- }
-
- return -ENOSYS;
+ return ret;
}
static inline int
diff --git a/arch/xtensa/include/asm/param.h b/arch/xtensa/include/asm/param.h
deleted file mode 100644
index 0a70e780ef2a..000000000000
--- a/arch/xtensa/include/asm/param.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * include/asm-xtensa/param.h
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2001 - 2005 Tensilica Inc.
- */
-#ifndef _XTENSA_PARAM_H
-#define _XTENSA_PARAM_H
-
-#include <uapi/asm/param.h>
-
-# define HZ CONFIG_HZ /* internal timer frequency */
-# define USER_HZ 100 /* for user interfaces in "ticks" */
-# define CLOCKS_PER_SEC (USER_HZ) /* frequnzy at which times() counts */
-#endif /* _XTENSA_PARAM_H */
diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h
index 30ee8c608853..5b0027d4ecc0 100644
--- a/arch/xtensa/include/asm/processor.h
+++ b/arch/xtensa/include/asm/processor.h
@@ -208,11 +208,6 @@ struct mm_struct;
/* Free all resources held by a thread. */
#define release_thread(thread) do { } while(0)
-/* Copy and release all segment info associated with a VM */
-#define copy_segments(p, mm) do { } while(0)
-#define release_segments(mm) do { } while(0)
-#define forget_segments() do { } while (0)
-
extern unsigned long get_wchan(struct task_struct *p);
#define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc)
diff --git a/arch/xtensa/include/asm/spinlock.h b/arch/xtensa/include/asm/spinlock.h
index a36221cf6363..3bb49681ee24 100644
--- a/arch/xtensa/include/asm/spinlock.h
+++ b/arch/xtensa/include/asm/spinlock.h
@@ -33,11 +33,6 @@
#define arch_spin_is_locked(x) ((x)->slock != 0)
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- smp_cond_load_acquire(&lock->slock, !VAL);
-}
-
#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
static inline void arch_spin_lock(arch_spinlock_t *lock)
diff --git a/arch/xtensa/include/asm/uaccess.h b/arch/xtensa/include/asm/uaccess.h
index 2e7bac0d4b2c..b8f152b6aaa5 100644
--- a/arch/xtensa/include/asm/uaccess.h
+++ b/arch/xtensa/include/asm/uaccess.h
@@ -278,19 +278,15 @@ clear_user(void *addr, unsigned long size)
extern long __strncpy_user(char *, const char *, long);
-#define __strncpy_from_user __strncpy_user
static inline long
strncpy_from_user(char *dst, const char *src, long count)
{
if (access_ok(VERIFY_READ, src, 1))
- return __strncpy_from_user(dst, src, count);
+ return __strncpy_user(dst, src, count);
return -EFAULT;
}
-
-#define strlen_user(str) strnlen_user((str), TASK_SIZE - 1)
-
/*
* Return the size of a string (including the ending 0!)
*/
diff --git a/arch/xtensa/include/uapi/asm/Kbuild b/arch/xtensa/include/uapi/asm/Kbuild
index b15bf6bc0e94..a5bcdfb890f1 100644
--- a/arch/xtensa/include/uapi/asm/Kbuild
+++ b/arch/xtensa/include/uapi/asm/Kbuild
@@ -1,2 +1,12 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
+
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += kvm_para.h
+generic-y += resource.h
+generic-y += siginfo.h
+generic-y += statfs.h
+generic-y += termios.h
diff --git a/arch/xtensa/include/uapi/asm/ioctls.h b/arch/xtensa/include/uapi/asm/ioctls.h
index 518954e74e6d..47d82c09be7b 100644
--- a/arch/xtensa/include/uapi/asm/ioctls.h
+++ b/arch/xtensa/include/uapi/asm/ioctls.h
@@ -105,6 +105,7 @@
#define TIOCGPKT _IOR('T', 0x38, int) /* Get packet mode state */
#define TIOCGPTLCK _IOR('T', 0x39, int) /* Get Pty lock state */
#define TIOCGEXCL _IOR('T', 0x40, int) /* Get exclusive mode state */
+#define TIOCGPTPEER _IO('T', 0x41) /* Safely open the slave */
#define TIOCSERCONFIG _IO('T', 83)
#define TIOCSERGWILD _IOR('T', 84, int)
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 24365b30aae9..b15b278aa314 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -103,20 +103,12 @@
overrides the coredump filter bits */
#define MADV_DODUMP 17 /* Clear the MADV_NODUMP flag */
+#define MADV_WIPEONFORK 18 /* Zero memory on fork, child only */
+#define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK */
+
/* compatibility flags */
#define MAP_FILE 0
-/*
- * When MAP_HUGETLB is set bits [26:31] encode the log2 of the huge page size.
- * This gives us 6 bits, which is enough until someone invents 128 bit address
- * spaces.
- *
- * Assume these are all power of twos.
- * When 0 use the default page size.
- */
-#define MAP_HUGE_SHIFT 26
-#define MAP_HUGE_MASK 0x3f
-
#define PKEY_DISABLE_ACCESS 0x1
#define PKEY_DISABLE_WRITE 0x2
#define PKEY_ACCESS_MASK (PKEY_DISABLE_ACCESS |\
diff --git a/arch/xtensa/include/uapi/asm/socket.h b/arch/xtensa/include/uapi/asm/socket.h
index 1eb6d2fe70d3..220059999e74 100644
--- a/arch/xtensa/include/uapi/asm/socket.h
+++ b/arch/xtensa/include/uapi/asm/socket.h
@@ -109,4 +109,10 @@
#define SO_COOKIE 57
+#define SCM_TIMESTAMPING_PKTINFO 58
+
+#define SO_PEERGROUPS 59
+
+#define SO_ZEROCOPY 60
+
#endif /* _XTENSA_SOCKET_H */
diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index 33bfa5270d95..08175df7a69e 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -273,8 +273,8 @@ void __init init_arch(bp_tag_t *bp_start)
* Initialize system. Setup memory and reserve regions.
*/
-extern char _end;
-extern char _stext;
+extern char _end[];
+extern char _stext[];
extern char _WindowVectors_text_start;
extern char _WindowVectors_text_end;
extern char _DebugInterruptVector_literal_start;
@@ -333,7 +333,7 @@ void __init setup_arch(char **cmdline_p)
}
#endif
- mem_reserve(__pa(&_stext), __pa(&_end));
+ mem_reserve(__pa(_stext), __pa(_end));
#ifdef CONFIG_VECTORS_OFFSET
mem_reserve(__pa(&_WindowVectors_text_start),
diff --git a/arch/xtensa/kernel/time.c b/arch/xtensa/kernel/time.c
index 668c1056f9e4..fd524a54d2ab 100644
--- a/arch/xtensa/kernel/time.c
+++ b/arch/xtensa/kernel/time.c
@@ -187,7 +187,7 @@ void __init time_init(void)
local_timer_setup(0);
setup_irq(this_cpu_ptr(&ccount_timer)->evt.irq, &timer_irqaction);
sched_clock_register(ccount_sched_clock_read, 32, ccount_freq);
- clocksource_probe();
+ timer_probe();
}
/*
diff --git a/arch/xtensa/kernel/xtensa_ksyms.c b/arch/xtensa/kernel/xtensa_ksyms.c
index d159e9b9c018..672391003e40 100644
--- a/arch/xtensa/kernel/xtensa_ksyms.c
+++ b/arch/xtensa/kernel/xtensa_ksyms.c
@@ -94,13 +94,11 @@ unsigned long __sync_fetch_and_or_4(unsigned long *p, unsigned long v)
}
EXPORT_SYMBOL(__sync_fetch_and_or_4);
-#ifdef CONFIG_NET
/*
* Networking support
*/
EXPORT_SYMBOL(csum_partial);
EXPORT_SYMBOL(csum_partial_copy_generic);
-#endif /* CONFIG_NET */
/*
* Architecture-specific symbols
diff --git a/arch/xtensa/mm/cache.c b/arch/xtensa/mm/cache.c
index 1a804a2f9a5b..3c75c4e597da 100644
--- a/arch/xtensa/mm/cache.c
+++ b/arch/xtensa/mm/cache.c
@@ -103,6 +103,7 @@ void clear_user_highpage(struct page *page, unsigned long vaddr)
clear_page_alias(kvaddr, paddr);
preempt_enable();
}
+EXPORT_SYMBOL(clear_user_highpage);
void copy_user_highpage(struct page *dst, struct page *src,
unsigned long vaddr, struct vm_area_struct *vma)
@@ -119,10 +120,7 @@ void copy_user_highpage(struct page *dst, struct page *src,
copy_page_alias(dst_vaddr, src_vaddr, dst_paddr, src_paddr);
preempt_enable();
}
-
-#endif /* DCACHE_WAY_SIZE > PAGE_SIZE */
-
-#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
+EXPORT_SYMBOL(copy_user_highpage);
/*
* Any time the kernel writes to a user page cache page, or it is about to
@@ -176,7 +174,7 @@ void flush_dcache_page(struct page *page)
/* There shouldn't be an entry in the cache for this page anymore. */
}
-
+EXPORT_SYMBOL(flush_dcache_page);
/*
* For now, flush the whole cache. FIXME??
@@ -188,6 +186,7 @@ void local_flush_cache_range(struct vm_area_struct *vma,
__flush_invalidate_dcache_all();
__invalidate_icache_all();
}
+EXPORT_SYMBOL(local_flush_cache_range);
/*
* Remove any entry in the cache for this page.
@@ -207,8 +206,9 @@ void local_flush_cache_page(struct vm_area_struct *vma, unsigned long address,
__flush_invalidate_dcache_page_alias(virt, phys);
__invalidate_icache_page_alias(virt, phys);
}
+EXPORT_SYMBOL(local_flush_cache_page);
-#endif
+#endif /* DCACHE_WAY_SIZE > PAGE_SIZE */
void
update_mmu_cache(struct vm_area_struct * vma, unsigned long addr, pte_t *ptep)
@@ -225,7 +225,7 @@ update_mmu_cache(struct vm_area_struct * vma, unsigned long addr, pte_t *ptep)
flush_tlb_page(vma, addr);
-#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
+#if (DCACHE_WAY_SIZE > PAGE_SIZE)
if (!PageReserved(page) && test_bit(PG_arch_1, &page->flags)) {
unsigned long phys = page_to_phys(page);
@@ -256,7 +256,7 @@ update_mmu_cache(struct vm_area_struct * vma, unsigned long addr, pte_t *ptep)
* flush_dcache_page() on the page.
*/
-#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
+#if (DCACHE_WAY_SIZE > PAGE_SIZE)
void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
unsigned long vaddr, void *dst, const void *src,
diff --git a/block/Kconfig b/block/Kconfig
index 89cd28f8d051..3ab42bbb06d5 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -206,4 +206,9 @@ config BLK_MQ_VIRTIO
depends on BLOCK && VIRTIO
default y
+config BLK_MQ_RDMA
+ bool
+ depends on BLOCK && INFINIBAND
+ default y
+
source block/Kconfig.iosched
diff --git a/block/Makefile b/block/Makefile
index 2b281cf258a0..9396ebc85d24 100644
--- a/block/Makefile
+++ b/block/Makefile
@@ -29,6 +29,7 @@ obj-$(CONFIG_BLK_CMDLINE_PARSER) += cmdline-parser.o
obj-$(CONFIG_BLK_DEV_INTEGRITY) += bio-integrity.o blk-integrity.o t10-pi.o
obj-$(CONFIG_BLK_MQ_PCI) += blk-mq-pci.o
obj-$(CONFIG_BLK_MQ_VIRTIO) += blk-mq-virtio.o
+obj-$(CONFIG_BLK_MQ_RDMA) += blk-mq-rdma.o
obj-$(CONFIG_BLK_DEV_ZONED) += blk-zoned.o
obj-$(CONFIG_BLK_WBT) += blk-wbt.o
obj-$(CONFIG_BLK_DEBUG_FS) += blk-mq-debugfs.o
diff --git a/block/badblocks.c b/block/badblocks.c
index 6ebcef282314..43c71166e1e2 100644
--- a/block/badblocks.c
+++ b/block/badblocks.c
@@ -533,6 +533,7 @@ ssize_t badblocks_store(struct badblocks *bb, const char *page, size_t len,
case 3:
if (newline != '\n')
return -EINVAL;
+ /* fall through */
case 2:
if (length <= 0)
return -EINVAL;
diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c
index 78b2e0db4fb2..ceefb9a706d6 100644
--- a/block/bfq-cgroup.c
+++ b/block/bfq-cgroup.c
@@ -206,7 +206,7 @@ static void bfqg_get(struct bfq_group *bfqg)
bfqg->ref++;
}
-void bfqg_put(struct bfq_group *bfqg)
+static void bfqg_put(struct bfq_group *bfqg)
{
bfqg->ref--;
@@ -385,7 +385,7 @@ static struct bfq_group_data *blkcg_to_bfqgd(struct blkcg *blkcg)
return cpd_to_bfqgd(blkcg_to_cpd(blkcg, &blkcg_policy_bfq));
}
-struct blkcg_policy_data *bfq_cpd_alloc(gfp_t gfp)
+static struct blkcg_policy_data *bfq_cpd_alloc(gfp_t gfp)
{
struct bfq_group_data *bgd;
@@ -395,7 +395,7 @@ struct blkcg_policy_data *bfq_cpd_alloc(gfp_t gfp)
return &bgd->pd;
}
-void bfq_cpd_init(struct blkcg_policy_data *cpd)
+static void bfq_cpd_init(struct blkcg_policy_data *cpd)
{
struct bfq_group_data *d = cpd_to_bfqgd(cpd);
@@ -403,12 +403,12 @@ void bfq_cpd_init(struct blkcg_policy_data *cpd)
CGROUP_WEIGHT_DFL : BFQ_WEIGHT_LEGACY_DFL;
}
-void bfq_cpd_free(struct blkcg_policy_data *cpd)
+static void bfq_cpd_free(struct blkcg_policy_data *cpd)
{
kfree(cpd_to_bfqgd(cpd));
}
-struct blkg_policy_data *bfq_pd_alloc(gfp_t gfp, int node)
+static struct blkg_policy_data *bfq_pd_alloc(gfp_t gfp, int node)
{
struct bfq_group *bfqg;
@@ -426,7 +426,7 @@ struct blkg_policy_data *bfq_pd_alloc(gfp_t gfp, int node)
return &bfqg->pd;
}
-void bfq_pd_init(struct blkg_policy_data *pd)
+static void bfq_pd_init(struct blkg_policy_data *pd)
{
struct blkcg_gq *blkg = pd_to_blkg(pd);
struct bfq_group *bfqg = blkg_to_bfqg(blkg);
@@ -445,7 +445,7 @@ void bfq_pd_init(struct blkg_policy_data *pd)
bfqg->rq_pos_tree = RB_ROOT;
}
-void bfq_pd_free(struct blkg_policy_data *pd)
+static void bfq_pd_free(struct blkg_policy_data *pd)
{
struct bfq_group *bfqg = pd_to_bfqg(pd);
@@ -453,7 +453,7 @@ void bfq_pd_free(struct blkg_policy_data *pd)
bfqg_put(bfqg);
}
-void bfq_pd_reset_stats(struct blkg_policy_data *pd)
+static void bfq_pd_reset_stats(struct blkg_policy_data *pd)
{
struct bfq_group *bfqg = pd_to_bfqg(pd);
@@ -740,7 +740,7 @@ static void bfq_reparent_active_entities(struct bfq_data *bfqd,
* blkio already grabs the queue_lock for us, so no need to use
* RCU-based magic
*/
-void bfq_pd_offline(struct blkg_policy_data *pd)
+static void bfq_pd_offline(struct blkg_policy_data *pd)
{
struct bfq_service_tree *st;
struct bfq_group *bfqg = pd_to_bfqg(pd);
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index ed93da2462ab..a4783da90ba8 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -128,7 +128,7 @@ BFQ_BFQQ_FNS(busy);
BFQ_BFQQ_FNS(wait_request);
BFQ_BFQQ_FNS(non_blocking_wait_rq);
BFQ_BFQQ_FNS(fifo_expire);
-BFQ_BFQQ_FNS(idle_window);
+BFQ_BFQQ_FNS(has_short_ttime);
BFQ_BFQQ_FNS(sync);
BFQ_BFQQ_FNS(IO_bound);
BFQ_BFQQ_FNS(in_large_burst);
@@ -239,7 +239,7 @@ static int T_slow[2];
static int T_fast[2];
static int device_speed_thresh[2];
-#define RQ_BIC(rq) ((struct bfq_io_cq *) (rq)->elv.priv[0])
+#define RQ_BIC(rq) icq_to_bic((rq)->elv.priv[0])
#define RQ_BFQQ(rq) ((rq)->elv.priv[1])
struct bfq_queue *bic_to_bfqq(struct bfq_io_cq *bic, bool is_sync)
@@ -720,17 +720,21 @@ static void bfq_updated_next_req(struct bfq_data *bfqd,
entity->budget = new_budget;
bfq_log_bfqq(bfqd, bfqq, "updated next rq: new budget %lu",
new_budget);
- bfq_requeue_bfqq(bfqd, bfqq);
+ bfq_requeue_bfqq(bfqd, bfqq, false);
}
}
static void
-bfq_bfqq_resume_state(struct bfq_queue *bfqq, struct bfq_io_cq *bic)
+bfq_bfqq_resume_state(struct bfq_queue *bfqq, struct bfq_data *bfqd,
+ struct bfq_io_cq *bic, bool bfq_already_existing)
{
- if (bic->saved_idle_window)
- bfq_mark_bfqq_idle_window(bfqq);
+ unsigned int old_wr_coeff = bfqq->wr_coeff;
+ bool busy = bfq_already_existing && bfq_bfqq_busy(bfqq);
+
+ if (bic->saved_has_short_ttime)
+ bfq_mark_bfqq_has_short_ttime(bfqq);
else
- bfq_clear_bfqq_idle_window(bfqq);
+ bfq_clear_bfqq_has_short_ttime(bfqq);
if (bic->saved_IO_bound)
bfq_mark_bfqq_IO_bound(bfqq);
@@ -754,6 +758,14 @@ bfq_bfqq_resume_state(struct bfq_queue *bfqq, struct bfq_io_cq *bic)
/* make sure weight will be updated, however we got here */
bfqq->entity.prio_changed = 1;
+
+ if (likely(!busy))
+ return;
+
+ if (old_wr_coeff == 1 && bfqq->wr_coeff > 1)
+ bfqd->wr_busy_queues++;
+ else if (old_wr_coeff > 1 && bfqq->wr_coeff == 1)
+ bfqd->wr_busy_queues--;
}
static int bfqq_process_refs(struct bfq_queue *bfqq)
@@ -2000,7 +2012,7 @@ static void bfq_bfqq_save_state(struct bfq_queue *bfqq)
return;
bic->saved_ttime = bfqq->ttime;
- bic->saved_idle_window = bfq_bfqq_idle_window(bfqq);
+ bic->saved_has_short_ttime = bfq_bfqq_has_short_ttime(bfqq);
bic->saved_IO_bound = bfq_bfqq_IO_bound(bfqq);
bic->saved_in_large_burst = bfq_bfqq_in_large_burst(bfqq);
bic->was_in_burst_list = !hlist_unhashed(&bfqq->burst_list_node);
@@ -2551,7 +2563,7 @@ static void __bfq_bfqq_expire(struct bfq_data *bfqd, struct bfq_queue *bfqq)
bfq_del_bfqq_busy(bfqd, bfqq, true);
} else {
- bfq_requeue_bfqq(bfqd, bfqq);
+ bfq_requeue_bfqq(bfqd, bfqq, true);
/*
* Resort priority tree of potential close cooperators.
*/
@@ -3026,8 +3038,8 @@ void bfq_bfqq_expire(struct bfq_data *bfqd,
}
bfq_log_bfqq(bfqd, bfqq,
- "expire (%d, slow %d, num_disp %d, idle_win %d)", reason,
- slow, bfqq->dispatched, bfq_bfqq_idle_window(bfqq));
+ "expire (%d, slow %d, num_disp %d, short_ttime %d)", reason,
+ slow, bfqq->dispatched, bfq_bfqq_has_short_ttime(bfqq));
/*
* Increase, decrease or leave budget unchanged according to
@@ -3102,7 +3114,10 @@ static bool bfq_may_expire_for_budg_timeout(struct bfq_queue *bfqq)
static bool bfq_bfqq_may_idle(struct bfq_queue *bfqq)
{
struct bfq_data *bfqd = bfqq->bfqd;
- bool idling_boosts_thr, idling_boosts_thr_without_issues,
+ bool rot_without_queueing =
+ !blk_queue_nonrot(bfqd->queue) && !bfqd->hw_tag,
+ bfqq_sequential_and_IO_bound,
+ idling_boosts_thr, idling_boosts_thr_without_issues,
idling_needed_for_service_guarantees,
asymmetric_scenario;
@@ -3110,27 +3125,45 @@ static bool bfq_bfqq_may_idle(struct bfq_queue *bfqq)
return true;
/*
+ * Idling is performed only if slice_idle > 0. In addition, we
+ * do not idle if
+ * (a) bfqq is async
+ * (b) bfqq is in the idle io prio class: in this case we do
+ * not idle because we want to minimize the bandwidth that
+ * queues in this class can steal to higher-priority queues
+ */
+ if (bfqd->bfq_slice_idle == 0 || !bfq_bfqq_sync(bfqq) ||
+ bfq_class_idle(bfqq))
+ return false;
+
+ bfqq_sequential_and_IO_bound = !BFQQ_SEEKY(bfqq) &&
+ bfq_bfqq_IO_bound(bfqq) && bfq_bfqq_has_short_ttime(bfqq);
+
+ /*
* The next variable takes into account the cases where idling
* boosts the throughput.
*
* The value of the variable is computed considering, first, that
* idling is virtually always beneficial for the throughput if:
- * (a) the device is not NCQ-capable, or
- * (b) regardless of the presence of NCQ, the device is rotational
- * and the request pattern for bfqq is I/O-bound and sequential.
+ * (a) the device is not NCQ-capable and rotational, or
+ * (b) regardless of the presence of NCQ, the device is rotational and
+ * the request pattern for bfqq is I/O-bound and sequential, or
+ * (c) regardless of whether it is rotational, the device is
+ * not NCQ-capable and the request pattern for bfqq is
+ * I/O-bound and sequential.
*
* Secondly, and in contrast to the above item (b), idling an
* NCQ-capable flash-based device would not boost the
* throughput even with sequential I/O; rather it would lower
* the throughput in proportion to how fast the device
* is. Accordingly, the next variable is true if any of the
- * above conditions (a) and (b) is true, and, in particular,
- * happens to be false if bfqd is an NCQ-capable flash-based
- * device.
+ * above conditions (a), (b) or (c) is true, and, in
+ * particular, happens to be false if bfqd is an NCQ-capable
+ * flash-based device.
*/
- idling_boosts_thr = !bfqd->hw_tag ||
- (!blk_queue_nonrot(bfqd->queue) && bfq_bfqq_IO_bound(bfqq) &&
- bfq_bfqq_idle_window(bfqq));
+ idling_boosts_thr = rot_without_queueing ||
+ ((!blk_queue_nonrot(bfqd->queue) || !bfqd->hw_tag) &&
+ bfqq_sequential_and_IO_bound);
/*
* The value of the next variable,
@@ -3301,16 +3334,13 @@ static bool bfq_bfqq_may_idle(struct bfq_queue *bfqq)
asymmetric_scenario && !bfq_bfqq_in_large_burst(bfqq);
/*
- * We have now all the components we need to compute the return
- * value of the function, which is true only if both the following
- * conditions hold:
- * 1) bfqq is sync, because idling make sense only for sync queues;
- * 2) idling either boosts the throughput (without issues), or
- * is necessary to preserve service guarantees.
+ * We have now all the components we need to compute the
+ * return value of the function, which is true only if idling
+ * either boosts the throughput (without issues), or is
+ * necessary to preserve service guarantees.
*/
- return bfq_bfqq_sync(bfqq) &&
- (idling_boosts_thr_without_issues ||
- idling_needed_for_service_guarantees);
+ return idling_boosts_thr_without_issues ||
+ idling_needed_for_service_guarantees;
}
/*
@@ -3326,10 +3356,7 @@ static bool bfq_bfqq_may_idle(struct bfq_queue *bfqq)
*/
static bool bfq_bfqq_must_idle(struct bfq_queue *bfqq)
{
- struct bfq_data *bfqd = bfqq->bfqd;
-
- return RB_EMPTY_ROOT(&bfqq->sort_list) && bfqd->bfq_slice_idle != 0 &&
- bfq_bfqq_may_idle(bfqq);
+ return RB_EMPTY_ROOT(&bfqq->sort_list) && bfq_bfqq_may_idle(bfqq);
}
/*
@@ -3471,11 +3498,17 @@ static void bfq_update_wr_data(struct bfq_data *bfqd, struct bfq_queue *bfqq)
}
}
}
- /* Update weight both if it must be raised and if it must be lowered */
+ /*
+ * To improve latency (for this or other queues), immediately
+ * update weight both if it must be raised and if it must be
+ * lowered. Since, entity may be on some active tree here, and
+ * might have a pending change of its ioprio class, invoke
+ * next function with the last parameter unset (see the
+ * comments on the function).
+ */
if ((entity->weight > entity->orig_weight) != (bfqq->wr_coeff > 1))
- __bfq_entity_update_weight_prio(
- bfq_entity_service_tree(entity),
- entity);
+ __bfq_entity_update_weight_prio(bfq_entity_service_tree(entity),
+ entity, false);
}
/*
@@ -3747,6 +3780,7 @@ bfq_set_next_ioprio_data(struct bfq_queue *bfqq, struct bfq_io_cq *bic)
default:
dev_err(bfqq->bfqd->queue->backing_dev_info->dev,
"bfq: bad prio class %d\n", ioprio_class);
+ /* fall through */
case IOPRIO_CLASS_NONE:
/*
* No prio set, inherit CPU scheduling settings.
@@ -3765,7 +3799,6 @@ bfq_set_next_ioprio_data(struct bfq_queue *bfqq, struct bfq_io_cq *bic)
case IOPRIO_CLASS_IDLE:
bfqq->new_ioprio_class = IOPRIO_CLASS_IDLE;
bfqq->new_ioprio = 7;
- bfq_clear_bfqq_idle_window(bfqq);
break;
}
@@ -3825,8 +3858,14 @@ static void bfq_init_bfqq(struct bfq_data *bfqd, struct bfq_queue *bfqq,
bfq_set_next_ioprio_data(bfqq, bic);
if (is_sync) {
+ /*
+ * No need to mark as has_short_ttime if in
+ * idle_class, because no device idling is performed
+ * for queues in idle class
+ */
if (!bfq_class_idle(bfqq))
- bfq_mark_bfqq_idle_window(bfqq);
+ /* tentatively mark as has_short_ttime */
+ bfq_mark_bfqq_has_short_ttime(bfqq);
bfq_mark_bfqq_sync(bfqq);
bfq_mark_bfqq_just_created(bfqq);
} else
@@ -3967,18 +4006,19 @@ bfq_update_io_seektime(struct bfq_data *bfqd, struct bfq_queue *bfqq,
blk_rq_sectors(rq) < BFQQ_SECT_THR_NONROT);
}
-/*
- * Disable idle window if the process thinks too long or seeks so much that
- * it doesn't matter.
- */
-static void bfq_update_idle_window(struct bfq_data *bfqd,
- struct bfq_queue *bfqq,
- struct bfq_io_cq *bic)
+static void bfq_update_has_short_ttime(struct bfq_data *bfqd,
+ struct bfq_queue *bfqq,
+ struct bfq_io_cq *bic)
{
- int enable_idle;
+ bool has_short_ttime = true;
- /* Don't idle for async or idle io prio class. */
- if (!bfq_bfqq_sync(bfqq) || bfq_class_idle(bfqq))
+ /*
+ * No need to update has_short_ttime if bfqq is async or in
+ * idle io prio class, or if bfq_slice_idle is zero, because
+ * no device idling is performed for bfqq in this case.
+ */
+ if (!bfq_bfqq_sync(bfqq) || bfq_class_idle(bfqq) ||
+ bfqd->bfq_slice_idle == 0)
return;
/* Idle window just restored, statistics are meaningless. */
@@ -3986,27 +4026,22 @@ static void bfq_update_idle_window(struct bfq_data *bfqd,
bfqd->bfq_wr_min_idle_time))
return;
- enable_idle = bfq_bfqq_idle_window(bfqq);
-
+ /* Think time is infinite if no process is linked to
+ * bfqq. Otherwise check average think time to
+ * decide whether to mark as has_short_ttime
+ */
if (atomic_read(&bic->icq.ioc->active_ref) == 0 ||
- bfqd->bfq_slice_idle == 0 ||
- (bfqd->hw_tag && BFQQ_SEEKY(bfqq) &&
- bfqq->wr_coeff == 1))
- enable_idle = 0;
- else if (bfq_sample_valid(bfqq->ttime.ttime_samples)) {
- if (bfqq->ttime.ttime_mean > bfqd->bfq_slice_idle &&
- bfqq->wr_coeff == 1)
- enable_idle = 0;
- else
- enable_idle = 1;
- }
- bfq_log_bfqq(bfqd, bfqq, "update_idle_window: enable_idle %d",
- enable_idle);
+ (bfq_sample_valid(bfqq->ttime.ttime_samples) &&
+ bfqq->ttime.ttime_mean > bfqd->bfq_slice_idle))
+ has_short_ttime = false;
+
+ bfq_log_bfqq(bfqd, bfqq, "update_has_short_ttime: has_short_ttime %d",
+ has_short_ttime);
- if (enable_idle)
- bfq_mark_bfqq_idle_window(bfqq);
+ if (has_short_ttime)
+ bfq_mark_bfqq_has_short_ttime(bfqq);
else
- bfq_clear_bfqq_idle_window(bfqq);
+ bfq_clear_bfqq_has_short_ttime(bfqq);
}
/*
@@ -4022,14 +4057,12 @@ static void bfq_rq_enqueued(struct bfq_data *bfqd, struct bfq_queue *bfqq,
bfqq->meta_pending++;
bfq_update_io_thinktime(bfqd, bfqq);
+ bfq_update_has_short_ttime(bfqd, bfqq, bic);
bfq_update_io_seektime(bfqd, bfqq, rq);
- if (bfqq->entity.service > bfq_max_budget(bfqd) / 8 ||
- !BFQQ_SEEKY(bfqq))
- bfq_update_idle_window(bfqd, bfqq, bic);
bfq_log_bfqq(bfqd, bfqq,
- "rq_enqueued: idle_window=%d (seeky %d)",
- bfq_bfqq_idle_window(bfqq), BFQQ_SEEKY(bfqq));
+ "rq_enqueued: has_short_ttime=%d (seeky %d)",
+ bfq_bfqq_has_short_ttime(bfqq), BFQQ_SEEKY(bfqq));
bfqq->last_request_pos = blk_rq_pos(rq) + blk_rq_sectors(rq);
@@ -4281,6 +4314,9 @@ static void bfq_completed_request(struct bfq_queue *bfqq, struct bfq_data *bfqd)
bfq_bfqq_expire(bfqd, bfqq, false,
BFQQE_NO_MORE_REQUESTS);
}
+
+ if (!bfqd->rq_in_driver)
+ bfq_schedule_dispatch(bfqd);
}
static void bfq_put_rq_priv_body(struct bfq_queue *bfqq)
@@ -4290,10 +4326,16 @@ static void bfq_put_rq_priv_body(struct bfq_queue *bfqq)
bfq_put_queue(bfqq);
}
-static void bfq_put_rq_private(struct request_queue *q, struct request *rq)
+static void bfq_finish_request(struct request *rq)
{
- struct bfq_queue *bfqq = RQ_BFQQ(rq);
- struct bfq_data *bfqd = bfqq->bfqd;
+ struct bfq_queue *bfqq;
+ struct bfq_data *bfqd;
+
+ if (!rq->elv.icq)
+ return;
+
+ bfqq = RQ_BFQQ(rq);
+ bfqd = bfqq->bfqd;
if (rq->rq_flags & RQF_STARTED)
bfqg_stats_update_completion(bfqq_group(bfqq),
@@ -4324,7 +4366,7 @@ static void bfq_put_rq_private(struct request_queue *q, struct request *rq)
*/
if (!RB_EMPTY_NODE(&rq->rb_node))
- bfq_remove_request(q, rq);
+ bfq_remove_request(rq->q, rq);
bfq_put_rq_priv_body(bfqq);
}
@@ -4394,20 +4436,21 @@ static struct bfq_queue *bfq_get_bfqq_handle_split(struct bfq_data *bfqd,
/*
* Allocate bfq data structures associated with this request.
*/
-static int bfq_get_rq_private(struct request_queue *q, struct request *rq,
- struct bio *bio)
+static void bfq_prepare_request(struct request *rq, struct bio *bio)
{
+ struct request_queue *q = rq->q;
struct bfq_data *bfqd = q->elevator->elevator_data;
- struct bfq_io_cq *bic = icq_to_bic(rq->elv.icq);
+ struct bfq_io_cq *bic;
const int is_sync = rq_is_sync(rq);
struct bfq_queue *bfqq;
bool new_queue = false;
- bool split = false;
+ bool bfqq_already_existing = false, split = false;
- spin_lock_irq(&bfqd->lock);
+ if (!rq->elv.icq)
+ return;
+ bic = icq_to_bic(rq->elv.icq);
- if (!bic)
- goto queue_fail;
+ spin_lock_irq(&bfqd->lock);
bfq_check_ioprio_change(bic, bio);
@@ -4432,6 +4475,8 @@ static int bfq_get_rq_private(struct request_queue *q, struct request *rq,
bfqq = bfq_get_bfqq_handle_split(bfqd, bic, bio,
true, is_sync,
NULL);
+ else
+ bfqq_already_existing = true;
}
}
@@ -4457,7 +4502,8 @@ static int bfq_get_rq_private(struct request_queue *q, struct request *rq,
* queue: restore the idle window and the
* possible weight raising period.
*/
- bfq_bfqq_resume_state(bfqq, bic);
+ bfq_bfqq_resume_state(bfqq, bfqd, bic,
+ bfqq_already_existing);
}
}
@@ -4465,13 +4511,6 @@ static int bfq_get_rq_private(struct request_queue *q, struct request *rq,
bfq_handle_burst(bfqd, bfqq);
spin_unlock_irq(&bfqd->lock);
-
- return 0;
-
-queue_fail:
- spin_unlock_irq(&bfqd->lock);
-
- return 1;
}
static void bfq_idle_slice_timer_body(struct bfq_queue *bfqq)
@@ -4763,16 +4802,15 @@ static ssize_t bfq_var_show(unsigned int var, char *page)
return sprintf(page, "%u\n", var);
}
-static ssize_t bfq_var_store(unsigned long *var, const char *page,
- size_t count)
+static int bfq_var_store(unsigned long *var, const char *page)
{
unsigned long new_val;
int ret = kstrtoul(page, 10, &new_val);
- if (ret == 0)
- *var = new_val;
-
- return count;
+ if (ret)
+ return ret;
+ *var = new_val;
+ return 0;
}
#define SHOW_FUNCTION(__FUNC, __VAR, __CONV) \
@@ -4813,19 +4851,23 @@ static ssize_t \
__FUNC(struct elevator_queue *e, const char *page, size_t count) \
{ \
struct bfq_data *bfqd = e->elevator_data; \
- unsigned long uninitialized_var(__data); \
- int ret = bfq_var_store(&__data, (page), count); \
- if (__data < (MIN)) \
- __data = (MIN); \
- else if (__data > (MAX)) \
- __data = (MAX); \
+ unsigned long __data, __min = (MIN), __max = (MAX); \
+ int ret; \
+ \
+ ret = bfq_var_store(&__data, (page)); \
+ if (ret) \
+ return ret; \
+ if (__data < __min) \
+ __data = __min; \
+ else if (__data > __max) \
+ __data = __max; \
if (__CONV == 1) \
*(__PTR) = msecs_to_jiffies(__data); \
else if (__CONV == 2) \
*(__PTR) = (u64)__data * NSEC_PER_MSEC; \
else \
*(__PTR) = __data; \
- return ret; \
+ return count; \
}
STORE_FUNCTION(bfq_fifo_expire_sync_store, &bfqd->bfq_fifo_expire[1], 1,
INT_MAX, 2);
@@ -4841,14 +4883,18 @@ STORE_FUNCTION(bfq_slice_idle_store, &bfqd->bfq_slice_idle, 0, INT_MAX, 2);
static ssize_t __FUNC(struct elevator_queue *e, const char *page, size_t count)\
{ \
struct bfq_data *bfqd = e->elevator_data; \
- unsigned long uninitialized_var(__data); \
- int ret = bfq_var_store(&__data, (page), count); \
- if (__data < (MIN)) \
- __data = (MIN); \
- else if (__data > (MAX)) \
- __data = (MAX); \
+ unsigned long __data, __min = (MIN), __max = (MAX); \
+ int ret; \
+ \
+ ret = bfq_var_store(&__data, (page)); \
+ if (ret) \
+ return ret; \
+ if (__data < __min) \
+ __data = __min; \
+ else if (__data > __max) \
+ __data = __max; \
*(__PTR) = (u64)__data * NSEC_PER_USEC; \
- return ret; \
+ return count; \
}
USEC_STORE_FUNCTION(bfq_slice_idle_us_store, &bfqd->bfq_slice_idle, 0,
UINT_MAX);
@@ -4858,8 +4904,12 @@ static ssize_t bfq_max_budget_store(struct elevator_queue *e,
const char *page, size_t count)
{
struct bfq_data *bfqd = e->elevator_data;
- unsigned long uninitialized_var(__data);
- int ret = bfq_var_store(&__data, (page), count);
+ unsigned long __data;
+ int ret;
+
+ ret = bfq_var_store(&__data, (page));
+ if (ret)
+ return ret;
if (__data == 0)
bfqd->bfq_max_budget = bfq_calc_max_budget(bfqd);
@@ -4871,7 +4921,7 @@ static ssize_t bfq_max_budget_store(struct elevator_queue *e,
bfqd->bfq_user_max_budget = __data;
- return ret;
+ return count;
}
/*
@@ -4882,8 +4932,12 @@ static ssize_t bfq_timeout_sync_store(struct elevator_queue *e,
const char *page, size_t count)
{
struct bfq_data *bfqd = e->elevator_data;
- unsigned long uninitialized_var(__data);
- int ret = bfq_var_store(&__data, (page), count);
+ unsigned long __data;
+ int ret;
+
+ ret = bfq_var_store(&__data, (page));
+ if (ret)
+ return ret;
if (__data < 1)
__data = 1;
@@ -4894,15 +4948,19 @@ static ssize_t bfq_timeout_sync_store(struct elevator_queue *e,
if (bfqd->bfq_user_max_budget == 0)
bfqd->bfq_max_budget = bfq_calc_max_budget(bfqd);
- return ret;
+ return count;
}
static ssize_t bfq_strict_guarantees_store(struct elevator_queue *e,
const char *page, size_t count)
{
struct bfq_data *bfqd = e->elevator_data;
- unsigned long uninitialized_var(__data);
- int ret = bfq_var_store(&__data, (page), count);
+ unsigned long __data;
+ int ret;
+
+ ret = bfq_var_store(&__data, (page));
+ if (ret)
+ return ret;
if (__data > 1)
__data = 1;
@@ -4912,15 +4970,19 @@ static ssize_t bfq_strict_guarantees_store(struct elevator_queue *e,
bfqd->strict_guarantees = __data;
- return ret;
+ return count;
}
static ssize_t bfq_low_latency_store(struct elevator_queue *e,
const char *page, size_t count)
{
struct bfq_data *bfqd = e->elevator_data;
- unsigned long uninitialized_var(__data);
- int ret = bfq_var_store(&__data, (page), count);
+ unsigned long __data;
+ int ret;
+
+ ret = bfq_var_store(&__data, (page));
+ if (ret)
+ return ret;
if (__data > 1)
__data = 1;
@@ -4928,7 +4990,7 @@ static ssize_t bfq_low_latency_store(struct elevator_queue *e,
bfq_end_wr(bfqd);
bfqd->low_latency = __data;
- return ret;
+ return count;
}
#define BFQ_ATTR(name) \
@@ -4950,8 +5012,8 @@ static struct elv_fs_entry bfq_attrs[] = {
static struct elevator_type iosched_bfq_mq = {
.ops.mq = {
- .get_rq_priv = bfq_get_rq_private,
- .put_rq_priv = bfq_put_rq_private,
+ .prepare_request = bfq_prepare_request,
+ .finish_request = bfq_finish_request,
.exit_icq = bfq_exit_icq,
.insert_requests = bfq_insert_requests,
.dispatch_request = bfq_dispatch_request,
@@ -4974,6 +5036,7 @@ static struct elevator_type iosched_bfq_mq = {
.elevator_name = "bfq",
.elevator_owner = THIS_MODULE,
};
+MODULE_ALIAS("bfq-iosched");
static int __init bfq_init(void)
{
@@ -5024,10 +5087,12 @@ static int __init bfq_init(void)
ret = elv_register(&iosched_bfq_mq);
if (ret)
- goto err_pol_unreg;
+ goto slab_kill;
return 0;
+slab_kill:
+ bfq_slab_kill();
err_pol_unreg:
#ifdef CONFIG_BFQ_GROUP_IOSCHED
blkcg_policy_unregister(&blkcg_policy_bfq);
diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h
index 5c3bf9861492..ac0809c72c98 100644
--- a/block/bfq-iosched.h
+++ b/block/bfq-iosched.h
@@ -52,7 +52,7 @@ struct bfq_entity;
struct bfq_service_tree {
/* tree for active entities (i.e., those backlogged) */
struct rb_root active;
- /* tree for idle entities (i.e., not backlogged, with V <= F_i)*/
+ /* tree for idle entities (i.e., not backlogged, with V < F_i)*/
struct rb_root idle;
/* idle entity with minimum F_i */
@@ -71,17 +71,29 @@ struct bfq_service_tree {
*
* bfq_sched_data is the basic scheduler queue. It supports three
* ioprio_classes, and can be used either as a toplevel queue or as an
- * intermediate queue on a hierarchical setup. @next_in_service
- * points to the active entity of the sched_data service trees that
- * will be scheduled next. It is used to reduce the number of steps
- * needed for each hierarchical-schedule update.
+ * intermediate queue in a hierarchical setup.
*
* The supported ioprio_classes are the same as in CFQ, in descending
* priority order, IOPRIO_CLASS_RT, IOPRIO_CLASS_BE, IOPRIO_CLASS_IDLE.
* Requests from higher priority queues are served before all the
* requests from lower priority queues; among requests of the same
* queue requests are served according to B-WF2Q+.
- * All the fields are protected by the queue lock of the containing bfqd.
+ *
+ * The schedule is implemented by the service trees, plus the field
+ * @next_in_service, which points to the entity on the active trees
+ * that will be served next, if 1) no changes in the schedule occurs
+ * before the current in-service entity is expired, 2) the in-service
+ * queue becomes idle when it expires, and 3) if the entity pointed by
+ * in_service_entity is not a queue, then the in-service child entity
+ * of the entity pointed by in_service_entity becomes idle on
+ * expiration. This peculiar definition allows for the following
+ * optimization, not yet exploited: while a given entity is still in
+ * service, we already know which is the best candidate for next
+ * service among the other active entitities in the same parent
+ * entity. We can then quickly compare the timestamps of the
+ * in-service entity with those of such best candidate.
+ *
+ * All fields are protected by the lock of the containing bfqd.
*/
struct bfq_sched_data {
/* entity in service */
@@ -348,11 +360,11 @@ struct bfq_io_cq {
uint64_t blkcg_serial_nr; /* the current blkcg serial */
#endif
/*
- * Snapshot of the idle window before merging; taken to
- * remember this value while the queue is merged, so as to be
- * able to restore it in case of split.
+ * Snapshot of the has_short_time flag before merging; taken
+ * to remember its value while the queue is merged, so as to
+ * be able to restore it in case of split.
*/
- bool saved_idle_window;
+ bool saved_has_short_ttime;
/*
* Same purpose as the previous two fields for the I/O bound
* classification of a queue.
@@ -626,7 +638,7 @@ enum bfqq_state_flags {
* without idling the device
*/
BFQQF_fifo_expire, /* FIFO checked in this slice */
- BFQQF_idle_window, /* slice idling enabled */
+ BFQQF_has_short_ttime, /* queue has a short think time */
BFQQF_sync, /* synchronous queue */
BFQQF_IO_bound, /*
* bfqq has timed-out at least once
@@ -655,7 +667,7 @@ BFQ_BFQQ_FNS(busy);
BFQ_BFQQ_FNS(wait_request);
BFQ_BFQQ_FNS(non_blocking_wait_rq);
BFQ_BFQQ_FNS(fifo_expire);
-BFQ_BFQQ_FNS(idle_window);
+BFQ_BFQQ_FNS(has_short_ttime);
BFQ_BFQQ_FNS(sync);
BFQ_BFQQ_FNS(IO_bound);
BFQ_BFQQ_FNS(in_large_burst);
@@ -805,7 +817,6 @@ extern const int bfq_timeout;
struct bfq_queue *bic_to_bfqq(struct bfq_io_cq *bic, bool is_sync);
void bic_set_bfqq(struct bfq_io_cq *bic, struct bfq_queue *bfqq, bool is_sync);
struct bfq_data *bic_to_bfqd(struct bfq_io_cq *bic);
-void bfq_requeue_bfqq(struct bfq_data *bfqd, struct bfq_queue *bfqq);
void bfq_pos_tree_add_move(struct bfq_data *bfqd, struct bfq_queue *bfqq);
void bfq_weights_tree_add(struct bfq_data *bfqd, struct bfq_entity *entity,
struct rb_root *root);
@@ -892,7 +903,8 @@ void bfq_put_idle_entity(struct bfq_service_tree *st,
struct bfq_entity *entity);
struct bfq_service_tree *
__bfq_entity_update_weight_prio(struct bfq_service_tree *old_st,
- struct bfq_entity *entity);
+ struct bfq_entity *entity,
+ bool update_class_too);
void bfq_bfqq_served(struct bfq_queue *bfqq, int served);
void bfq_bfqq_charge_time(struct bfq_data *bfqd, struct bfq_queue *bfqq,
unsigned long time_ms);
@@ -904,7 +916,8 @@ void __bfq_bfqd_reset_in_service(struct bfq_data *bfqd);
void bfq_deactivate_bfqq(struct bfq_data *bfqd, struct bfq_queue *bfqq,
bool ins_into_idle_tree, bool expiration);
void bfq_activate_bfqq(struct bfq_data *bfqd, struct bfq_queue *bfqq);
-void bfq_requeue_bfqq(struct bfq_data *bfqd, struct bfq_queue *bfqq);
+void bfq_requeue_bfqq(struct bfq_data *bfqd, struct bfq_queue *bfqq,
+ bool expiration);
void bfq_del_bfqq_busy(struct bfq_data *bfqd, struct bfq_queue *bfqq,
bool expiration);
void bfq_add_bfqq_busy(struct bfq_data *bfqd, struct bfq_queue *bfqq);
@@ -916,13 +929,16 @@ void bfq_add_bfqq_busy(struct bfq_data *bfqd, struct bfq_queue *bfqq);
struct bfq_group *bfqq_group(struct bfq_queue *bfqq);
#define bfq_log_bfqq(bfqd, bfqq, fmt, args...) do { \
- blk_add_trace_msg((bfqd)->queue, "bfq%d%c %s " fmt, (bfqq)->pid,\
- bfq_bfqq_sync((bfqq)) ? 'S' : 'A', \
- bfqq_group(bfqq)->blkg_path, ##args); \
+ blk_add_cgroup_trace_msg((bfqd)->queue, \
+ bfqg_to_blkg(bfqq_group(bfqq))->blkcg, \
+ "bfq%d%c " fmt, (bfqq)->pid, \
+ bfq_bfqq_sync((bfqq)) ? 'S' : 'A', ##args); \
} while (0)
-#define bfq_log_bfqg(bfqd, bfqg, fmt, args...) \
- blk_add_trace_msg((bfqd)->queue, "%s " fmt, (bfqg)->blkg_path, ##args)
+#define bfq_log_bfqg(bfqd, bfqg, fmt, args...) do { \
+ blk_add_cgroup_trace_msg((bfqd)->queue, \
+ bfqg_to_blkg(bfqg)->blkcg, fmt, ##args); \
+} while (0)
#else /* CONFIG_BFQ_GROUP_IOSCHED */
diff --git a/block/bfq-wf2q.c b/block/bfq-wf2q.c
index 8726ede19eef..414ba686a847 100644
--- a/block/bfq-wf2q.c
+++ b/block/bfq-wf2q.c
@@ -44,7 +44,8 @@ static unsigned int bfq_class_idx(struct bfq_entity *entity)
BFQ_DEFAULT_GRP_CLASS - 1;
}
-static struct bfq_entity *bfq_lookup_next_entity(struct bfq_sched_data *sd);
+static struct bfq_entity *bfq_lookup_next_entity(struct bfq_sched_data *sd,
+ bool expiration);
static bool bfq_update_parent_budget(struct bfq_entity *next_in_service);
@@ -54,6 +55,8 @@ static bool bfq_update_parent_budget(struct bfq_entity *next_in_service);
* @new_entity: if not NULL, pointer to the entity whose activation,
* requeueing or repositionig triggered the invocation of
* this function.
+ * @expiration: id true, this function is being invoked after the
+ * expiration of the in-service entity
*
* This function is called to update sd->next_in_service, which, in
* its turn, may change as a consequence of the insertion or
@@ -72,19 +75,20 @@ static bool bfq_update_parent_budget(struct bfq_entity *next_in_service);
* entity.
*/
static bool bfq_update_next_in_service(struct bfq_sched_data *sd,
- struct bfq_entity *new_entity)
+ struct bfq_entity *new_entity,
+ bool expiration)
{
struct bfq_entity *next_in_service = sd->next_in_service;
bool parent_sched_may_change = false;
+ bool change_without_lookup = false;
/*
* If this update is triggered by the activation, requeueing
* or repositiong of an entity that does not coincide with
* sd->next_in_service, then a full lookup in the active tree
* can be avoided. In fact, it is enough to check whether the
- * just-modified entity has a higher priority than
- * sd->next_in_service, or, even if it has the same priority
- * as sd->next_in_service, is eligible and has a lower virtual
+ * just-modified entity has the same priority as
+ * sd->next_in_service, is eligible and has a lower virtual
* finish time than sd->next_in_service. If this compound
* condition holds, then the new entity becomes the new
* next_in_service. Otherwise no change is needed.
@@ -96,13 +100,12 @@ static bool bfq_update_next_in_service(struct bfq_sched_data *sd,
* set to true, and left as true if
* sd->next_in_service is NULL.
*/
- bool replace_next = true;
+ change_without_lookup = true;
/*
* If there is already a next_in_service candidate
- * entity, then compare class priorities or timestamps
- * to decide whether to replace sd->service_tree with
- * new_entity.
+ * entity, then compare timestamps to decide whether
+ * to replace sd->service_tree with new_entity.
*/
if (next_in_service) {
unsigned int new_entity_class_idx =
@@ -110,32 +113,26 @@ static bool bfq_update_next_in_service(struct bfq_sched_data *sd,
struct bfq_service_tree *st =
sd->service_tree + new_entity_class_idx;
- /*
- * For efficiency, evaluate the most likely
- * sub-condition first.
- */
- replace_next =
+ change_without_lookup =
(new_entity_class_idx ==
bfq_class_idx(next_in_service)
&&
!bfq_gt(new_entity->start, st->vtime)
&&
bfq_gt(next_in_service->finish,
- new_entity->finish))
- ||
- new_entity_class_idx <
- bfq_class_idx(next_in_service);
+ new_entity->finish));
}
- if (replace_next)
+ if (change_without_lookup)
next_in_service = new_entity;
- } else /* invoked because of a deactivation: lookup needed */
- next_in_service = bfq_lookup_next_entity(sd);
+ }
- if (next_in_service) {
+ if (!change_without_lookup) /* lookup needed */
+ next_in_service = bfq_lookup_next_entity(sd, expiration);
+
+ if (next_in_service)
parent_sched_may_change = !sd->next_in_service ||
bfq_update_parent_budget(next_in_service);
- }
sd->next_in_service = next_in_service;
@@ -188,21 +185,23 @@ static bool bfq_update_parent_budget(struct bfq_entity *next_in_service)
/*
* This function tells whether entity stops being a candidate for next
- * service, according to the following logic.
+ * service, according to the restrictive definition of the field
+ * next_in_service. In particular, this function is invoked for an
+ * entity that is about to be set in service.
*
- * This function is invoked for an entity that is about to be set in
- * service. If such an entity is a queue, then the entity is no longer
- * a candidate for next service (i.e, a candidate entity to serve
- * after the in-service entity is expired). The function then returns
- * true.
+ * If entity is a queue, then the entity is no longer a candidate for
+ * next service according to the that definition, because entity is
+ * about to become the in-service queue. This function then returns
+ * true if entity is a queue.
*
- * In contrast, the entity could stil be a candidate for next service
- * if it is not a queue, and has more than one child. In fact, even if
- * one of its children is about to be set in service, other children
- * may still be the next to serve. As a consequence, a non-queue
- * entity is not a candidate for next-service only if it has only one
- * child. And only if this condition holds, then the function returns
- * true for a non-queue entity.
+ * In contrast, entity could still be a candidate for next service if
+ * it is not a queue, and has more than one active child. In fact,
+ * even if one of its children is about to be set in service, other
+ * active children may still be the next to serve, for the parent
+ * entity, even according to the above definition. As a consequence, a
+ * non-queue entity is not a candidate for next-service only if it has
+ * only one active child. And only if this condition holds, then this
+ * function returns true for a non-queue entity.
*/
static bool bfq_no_longer_next_in_service(struct bfq_entity *entity)
{
@@ -213,6 +212,18 @@ static bool bfq_no_longer_next_in_service(struct bfq_entity *entity)
bfqg = container_of(entity, struct bfq_group, entity);
+ /*
+ * The field active_entities does not always contain the
+ * actual number of active children entities: it happens to
+ * not account for the in-service entity in case the latter is
+ * removed from its active tree (which may get done after
+ * invoking the function bfq_no_longer_next_in_service in
+ * bfq_get_next_queue). Fortunately, here, i.e., while
+ * bfq_no_longer_next_in_service is not yet completed in
+ * bfq_get_next_queue, bfq_active_extract has not yet been
+ * invoked, and thus active_entities still coincides with the
+ * actual number of active entities.
+ */
if (bfqg->active_entities == 1)
return true;
@@ -694,10 +705,28 @@ struct bfq_service_tree *bfq_entity_service_tree(struct bfq_entity *entity)
return sched_data->service_tree + idx;
}
-
+/*
+ * Update weight and priority of entity. If update_class_too is true,
+ * then update the ioprio_class of entity too.
+ *
+ * The reason why the update of ioprio_class is controlled through the
+ * last parameter is as follows. Changing the ioprio class of an
+ * entity implies changing the destination service trees for that
+ * entity. If such a change occurred when the entity is already on one
+ * of the service trees for its previous class, then the state of the
+ * entity would become more complex: none of the new possible service
+ * trees for the entity, according to bfq_entity_service_tree(), would
+ * match any of the possible service trees on which the entity
+ * is. Complex operations involving these trees, such as entity
+ * activations and deactivations, should take into account this
+ * additional complexity. To avoid this issue, this function is
+ * invoked with update_class_too unset in the points in the code where
+ * entity may happen to be on some tree.
+ */
struct bfq_service_tree *
__bfq_entity_update_weight_prio(struct bfq_service_tree *old_st,
- struct bfq_entity *entity)
+ struct bfq_entity *entity,
+ bool update_class_too)
{
struct bfq_service_tree *new_st = old_st;
@@ -739,9 +768,15 @@ __bfq_entity_update_weight_prio(struct bfq_service_tree *old_st,
bfq_weight_to_ioprio(entity->orig_weight);
}
- if (bfqq)
+ if (bfqq && update_class_too)
bfqq->ioprio_class = bfqq->new_ioprio_class;
- entity->prio_changed = 0;
+
+ /*
+ * Reset prio_changed only if the ioprio_class change
+ * is not pending any longer.
+ */
+ if (!bfqq || bfqq->ioprio_class == bfqq->new_ioprio_class)
+ entity->prio_changed = 0;
/*
* NOTE: here we may be changing the weight too early,
@@ -867,7 +902,12 @@ static void bfq_update_fin_time_enqueue(struct bfq_entity *entity,
{
struct bfq_queue *bfqq = bfq_entity_to_bfqq(entity);
- st = __bfq_entity_update_weight_prio(st, entity);
+ /*
+ * When this function is invoked, entity is not in any service
+ * tree, then it is safe to invoke next function with the last
+ * parameter set (see the comments on the function).
+ */
+ st = __bfq_entity_update_weight_prio(st, entity, true);
bfq_calc_finish(entity, entity->budget);
/*
@@ -925,7 +965,7 @@ static void bfq_update_fin_time_enqueue(struct bfq_entity *entity,
* one of its children receives a new request.
*
* Basically, this function updates the timestamps of entity and
- * inserts entity into its active tree, ater possible extracting it
+ * inserts entity into its active tree, ater possibly extracting it
* from its idle tree.
*/
static void __bfq_activate_entity(struct bfq_entity *entity,
@@ -1019,7 +1059,7 @@ static void __bfq_requeue_entity(struct bfq_entity *entity)
entity->start = entity->finish;
/*
* In addition, if the entity had more than one child
- * when set in service, then was not extracted from
+ * when set in service, then it was not extracted from
* the active tree. This implies that the position of
* the entity in the active tree may need to be
* changed now, because we have just updated the start
@@ -1027,9 +1067,8 @@ static void __bfq_requeue_entity(struct bfq_entity *entity)
* time in a moment (the requeueing is then, more
* precisely, a repositioning in this case). To
* implement this repositioning, we: 1) dequeue the
- * entity here, 2) update the finish time and
- * requeue the entity according to the new
- * timestamps below.
+ * entity here, 2) update the finish time and requeue
+ * the entity according to the new timestamps below.
*/
if (entity->tree)
bfq_active_extract(st, entity);
@@ -1076,18 +1115,21 @@ static void __bfq_activate_requeue_entity(struct bfq_entity *entity,
/**
- * bfq_activate_entity - activate or requeue an entity representing a bfq_queue,
- * and activate, requeue or reposition all ancestors
- * for which such an update becomes necessary.
+ * bfq_activate_requeue_entity - activate or requeue an entity representing a
+ * bfq_queue, and activate, requeue or reposition
+ * all ancestors for which such an update becomes
+ * necessary.
* @entity: the entity to activate.
* @non_blocking_wait_rq: true if this entity was waiting for a request
* @requeue: true if this is a requeue, which implies that bfqq is
* being expired; thus ALL its ancestors stop being served and must
* therefore be requeued
+ * @expiration: true if this function is being invoked in the expiration path
+ * of the in-service queue
*/
static void bfq_activate_requeue_entity(struct bfq_entity *entity,
bool non_blocking_wait_rq,
- bool requeue)
+ bool requeue, bool expiration)
{
struct bfq_sched_data *sd;
@@ -1095,7 +1137,8 @@ static void bfq_activate_requeue_entity(struct bfq_entity *entity,
sd = entity->sched_data;
__bfq_activate_requeue_entity(entity, sd, non_blocking_wait_rq);
- if (!bfq_update_next_in_service(sd, entity) && !requeue)
+ if (!bfq_update_next_in_service(sd, entity, expiration) &&
+ !requeue)
break;
}
}
@@ -1106,9 +1149,9 @@ static void bfq_activate_requeue_entity(struct bfq_entity *entity,
* @ins_into_idle_tree: if false, the entity will not be put into the
* idle tree.
*
- * Deactivates an entity, independently from its previous state. Must
+ * Deactivates an entity, independently of its previous state. Must
* be invoked only if entity is on a service tree. Extracts the entity
- * from that tree, and if necessary and allowed, puts it on the idle
+ * from that tree, and if necessary and allowed, puts it into the idle
* tree.
*/
bool __bfq_deactivate_entity(struct bfq_entity *entity, bool ins_into_idle_tree)
@@ -1129,8 +1172,10 @@ bool __bfq_deactivate_entity(struct bfq_entity *entity, bool ins_into_idle_tree)
st = bfq_entity_service_tree(entity);
is_in_service = entity == sd->in_service_entity;
- if (is_in_service)
+ if (is_in_service) {
bfq_calc_finish(entity, entity->service);
+ sd->in_service_entity = NULL;
+ }
if (entity->tree == &st->active)
bfq_active_extract(st, entity);
@@ -1148,7 +1193,9 @@ bool __bfq_deactivate_entity(struct bfq_entity *entity, bool ins_into_idle_tree)
/**
* bfq_deactivate_entity - deactivate an entity representing a bfq_queue.
* @entity: the entity to deactivate.
- * @ins_into_idle_tree: true if the entity can be put on the idle tree
+ * @ins_into_idle_tree: true if the entity can be put into the idle tree
+ * @expiration: true if this function is being invoked in the expiration path
+ * of the in-service queue
*/
static void bfq_deactivate_entity(struct bfq_entity *entity,
bool ins_into_idle_tree,
@@ -1177,18 +1224,31 @@ static void bfq_deactivate_entity(struct bfq_entity *entity,
* then, since entity has just been
* deactivated, a new one must be found.
*/
- bfq_update_next_in_service(sd, NULL);
+ bfq_update_next_in_service(sd, NULL, expiration);
- if (sd->next_in_service)
+ if (sd->next_in_service || sd->in_service_entity) {
/*
- * The parent entity is still backlogged,
- * because next_in_service is not NULL. So, no
- * further upwards deactivation must be
- * performed. Yet, next_in_service has
- * changed. Then the schedule does need to be
- * updated upwards.
+ * The parent entity is still active, because
+ * either next_in_service or in_service_entity
+ * is not NULL. So, no further upwards
+ * deactivation must be performed. Yet,
+ * next_in_service has changed. Then the
+ * schedule does need to be updated upwards.
+ *
+ * NOTE If in_service_entity is not NULL, then
+ * next_in_service may happen to be NULL,
+ * although the parent entity is evidently
+ * active. This happens if 1) the entity
+ * pointed by in_service_entity is the only
+ * active entity in the parent entity, and 2)
+ * according to the definition of
+ * next_in_service, the in_service_entity
+ * cannot be considered as
+ * next_in_service. See the comments on the
+ * definition of next_in_service for details.
*/
break;
+ }
/*
* If we get here, then the parent is no more
@@ -1223,7 +1283,7 @@ static void bfq_deactivate_entity(struct bfq_entity *entity,
__bfq_requeue_entity(entity);
sd = entity->sched_data;
- if (!bfq_update_next_in_service(sd, entity) &&
+ if (!bfq_update_next_in_service(sd, entity, expiration) &&
!expiration)
/*
* next_in_service unchanged or not causing
@@ -1268,7 +1328,7 @@ static void bfq_update_vtime(struct bfq_service_tree *st, u64 new_value)
*
* This function searches the first schedulable entity, starting from the
* root of the tree and going on the left every time on this side there is
- * a subtree with at least one eligible (start >= vtime) entity. The path on
+ * a subtree with at least one eligible (start <= vtime) entity. The path on
* the right is followed only if a) the left subtree contains no eligible
* entities and b) no eligible entity has been found yet.
*/
@@ -1358,12 +1418,14 @@ __bfq_lookup_next_entity(struct bfq_service_tree *st, bool in_service)
/**
* bfq_lookup_next_entity - return the first eligible entity in @sd.
* @sd: the sched_data.
+ * @expiration: true if we are on the expiration path of the in-service queue
*
* This function is invoked when there has been a change in the trees
- * for sd, and we need know what is the new next entity after this
- * change.
+ * for sd, and we need to know what is the new next entity to serve
+ * after this change.
*/
-static struct bfq_entity *bfq_lookup_next_entity(struct bfq_sched_data *sd)
+static struct bfq_entity *bfq_lookup_next_entity(struct bfq_sched_data *sd,
+ bool expiration)
{
struct bfq_service_tree *st = sd->service_tree;
struct bfq_service_tree *idle_class_st = st + (BFQ_IOPRIO_CLASSES - 1);
@@ -1390,8 +1452,24 @@ static struct bfq_entity *bfq_lookup_next_entity(struct bfq_sched_data *sd)
* class, unless the idle class needs to be served.
*/
for (; class_idx < BFQ_IOPRIO_CLASSES; class_idx++) {
+ /*
+ * If expiration is true, then bfq_lookup_next_entity
+ * is being invoked as a part of the expiration path
+ * of the in-service queue. In this case, even if
+ * sd->in_service_entity is not NULL,
+ * sd->in_service_entiy at this point is actually not
+ * in service any more, and, if needed, has already
+ * been properly queued or requeued into the right
+ * tree. The reason why sd->in_service_entity is still
+ * not NULL here, even if expiration is true, is that
+ * sd->in_service_entiy is reset as a last step in the
+ * expiration path. So, if expiration is true, tell
+ * __bfq_lookup_next_entity that there is no
+ * sd->in_service_entity.
+ */
entity = __bfq_lookup_next_entity(st + class_idx,
- sd->in_service_entity);
+ sd->in_service_entity &&
+ !expiration);
if (entity)
break;
@@ -1465,47 +1543,34 @@ struct bfq_queue *bfq_get_next_queue(struct bfq_data *bfqd)
/*
* If entity is no longer a candidate for next
- * service, then we extract it from its active tree,
- * for the following reason. To further boost the
- * throughput in some special case, BFQ needs to know
- * which is the next candidate entity to serve, while
- * there is already an entity in service. In this
- * respect, to make it easy to compute/update the next
- * candidate entity to serve after the current
- * candidate has been set in service, there is a case
- * where it is necessary to extract the current
- * candidate from its service tree. Such a case is
- * when the entity just set in service cannot be also
- * a candidate for next service. Details about when
- * this conditions holds are reported in the comments
- * on the function bfq_no_longer_next_in_service()
- * invoked below.
+ * service, then it must be extracted from its active
+ * tree, so as to make sure that it won't be
+ * considered when computing next_in_service. See the
+ * comments on the function
+ * bfq_no_longer_next_in_service() for details.
*/
if (bfq_no_longer_next_in_service(entity))
bfq_active_extract(bfq_entity_service_tree(entity),
entity);
/*
- * For the same reason why we may have just extracted
- * entity from its active tree, we may need to update
- * next_in_service for the sched_data of entity too,
- * regardless of whether entity has been extracted.
- * In fact, even if entity has not been extracted, a
- * descendant entity may get extracted. Such an event
- * would cause a change in next_in_service for the
- * level of the descendant entity, and thus possibly
- * back to upper levels.
+ * Even if entity is not to be extracted according to
+ * the above check, a descendant entity may get
+ * extracted in one of the next iterations of this
+ * loop. Such an event could cause a change in
+ * next_in_service for the level of the descendant
+ * entity, and thus possibly back to this level.
*
- * We cannot perform the resulting needed update
- * before the end of this loop, because, to know which
- * is the correct next-to-serve candidate entity for
- * each level, we need first to find the leaf entity
- * to set in service. In fact, only after we know
- * which is the next-to-serve leaf entity, we can
- * discover whether the parent entity of the leaf
- * entity becomes the next-to-serve, and so on.
+ * However, we cannot perform the resulting needed
+ * update of next_in_service for this level before the
+ * end of the whole loop, because, to know which is
+ * the correct next-to-serve candidate entity for each
+ * level, we need first to find the leaf entity to set
+ * in service. In fact, only after we know which is
+ * the next-to-serve leaf entity, we can discover
+ * whether the parent entity of the leaf entity
+ * becomes the next-to-serve, and so on.
*/
-
}
bfqq = bfq_entity_to_bfqq(entity);
@@ -1517,7 +1582,7 @@ struct bfq_queue *bfq_get_next_queue(struct bfq_data *bfqd)
for_each_entity(entity) {
struct bfq_sched_data *sd = entity->sched_data;
- if (!bfq_update_next_in_service(sd, NULL))
+ if (!bfq_update_next_in_service(sd, NULL, false))
break;
}
@@ -1565,16 +1630,17 @@ void bfq_activate_bfqq(struct bfq_data *bfqd, struct bfq_queue *bfqq)
struct bfq_entity *entity = &bfqq->entity;
bfq_activate_requeue_entity(entity, bfq_bfqq_non_blocking_wait_rq(bfqq),
- false);
+ false, false);
bfq_clear_bfqq_non_blocking_wait_rq(bfqq);
}
-void bfq_requeue_bfqq(struct bfq_data *bfqd, struct bfq_queue *bfqq)
+void bfq_requeue_bfqq(struct bfq_data *bfqd, struct bfq_queue *bfqq,
+ bool expiration)
{
struct bfq_entity *entity = &bfqq->entity;
bfq_activate_requeue_entity(entity, false,
- bfqq == bfqd->in_service_queue);
+ bfqq == bfqd->in_service_queue, expiration);
}
/*
diff --git a/block/bio-integrity.c b/block/bio-integrity.c
index b5009a896a7f..5df32907ff3b 100644
--- a/block/bio-integrity.c
+++ b/block/bio-integrity.c
@@ -102,7 +102,7 @@ EXPORT_SYMBOL(bio_integrity_alloc);
* Description: Used to free the integrity portion of a bio. Usually
* called from bio_free().
*/
-void bio_integrity_free(struct bio *bio)
+static void bio_integrity_free(struct bio *bio)
{
struct bio_integrity_payload *bip = bio_integrity(bio);
struct bio_set *bs = bio->bi_pool;
@@ -120,8 +120,8 @@ void bio_integrity_free(struct bio *bio)
}
bio->bi_integrity = NULL;
+ bio->bi_opf &= ~REQ_INTEGRITY;
}
-EXPORT_SYMBOL(bio_integrity_free);
/**
* bio_integrity_add_page - Attach integrity metadata
@@ -146,7 +146,7 @@ int bio_integrity_add_page(struct bio *bio, struct page *page,
iv = bip->bip_vec + bip->bip_vcnt;
if (bip->bip_vcnt &&
- bvec_gap_to_prev(bdev_get_queue(bio->bi_bdev),
+ bvec_gap_to_prev(bio->bi_disk->queue,
&bip->bip_vec[bip->bip_vcnt - 1], offset))
return 0;
@@ -160,44 +160,6 @@ int bio_integrity_add_page(struct bio *bio, struct page *page,
EXPORT_SYMBOL(bio_integrity_add_page);
/**
- * bio_integrity_enabled - Check whether integrity can be passed
- * @bio: bio to check
- *
- * Description: Determines whether bio_integrity_prep() can be called
- * on this bio or not. bio data direction and target device must be
- * set prior to calling. The functions honors the write_generate and
- * read_verify flags in sysfs.
- */
-bool bio_integrity_enabled(struct bio *bio)
-{
- struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
-
- if (bio_op(bio) != REQ_OP_READ && bio_op(bio) != REQ_OP_WRITE)
- return false;
-
- if (!bio_sectors(bio))
- return false;
-
- /* Already protected? */
- if (bio_integrity(bio))
- return false;
-
- if (bi == NULL)
- return false;
-
- if (bio_data_dir(bio) == READ && bi->profile->verify_fn != NULL &&
- (bi->flags & BLK_INTEGRITY_VERIFY))
- return true;
-
- if (bio_data_dir(bio) == WRITE && bi->profile->generate_fn != NULL &&
- (bi->flags & BLK_INTEGRITY_GENERATE))
- return true;
-
- return false;
-}
-EXPORT_SYMBOL(bio_integrity_enabled);
-
-/**
* bio_integrity_intervals - Return number of integrity intervals for a bio
* @bi: blk_integrity profile for device
* @sectors: Size of the bio in 512-byte sectors
@@ -222,26 +184,27 @@ static inline unsigned int bio_integrity_bytes(struct blk_integrity *bi,
/**
* bio_integrity_process - Process integrity metadata for a bio
* @bio: bio to generate/verify integrity metadata for
+ * @proc_iter: iterator to process
* @proc_fn: Pointer to the relevant processing function
*/
-static int bio_integrity_process(struct bio *bio,
- integrity_processing_fn *proc_fn)
+static blk_status_t bio_integrity_process(struct bio *bio,
+ struct bvec_iter *proc_iter, integrity_processing_fn *proc_fn)
{
- struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
+ struct blk_integrity *bi = blk_get_integrity(bio->bi_disk);
struct blk_integrity_iter iter;
struct bvec_iter bviter;
struct bio_vec bv;
struct bio_integrity_payload *bip = bio_integrity(bio);
- unsigned int ret = 0;
+ blk_status_t ret = BLK_STS_OK;
void *prot_buf = page_address(bip->bip_vec->bv_page) +
bip->bip_vec->bv_offset;
- iter.disk_name = bio->bi_bdev->bd_disk->disk_name;
+ iter.disk_name = bio->bi_disk->disk_name;
iter.interval = 1 << bi->interval_exp;
- iter.seed = bip_get_seed(bip);
+ iter.seed = proc_iter->bi_sector;
iter.prot_buf = prot_buf;
- bio_for_each_segment(bv, bio, bviter) {
+ __bio_for_each_segment(bv, bio, bviter, *proc_iter) {
void *kaddr = kmap_atomic(bv.bv_page);
iter.data_buf = kaddr + bv.bv_offset;
@@ -262,37 +225,57 @@ static int bio_integrity_process(struct bio *bio,
* bio_integrity_prep - Prepare bio for integrity I/O
* @bio: bio to prepare
*
- * Description: Allocates a buffer for integrity metadata, maps the
- * pages and attaches them to a bio. The bio must have data
- * direction, target device and start sector set priot to calling. In
- * the WRITE case, integrity metadata will be generated using the
- * block device's integrity function. In the READ case, the buffer
+ * Description: Checks if the bio already has an integrity payload attached.
+ * If it does, the payload has been generated by another kernel subsystem,
+ * and we just pass it through. Otherwise allocates integrity payload.
+ * The bio must have data direction, target device and start sector set priot
+ * to calling. In the WRITE case, integrity metadata will be generated using
+ * the block device's integrity function. In the READ case, the buffer
* will be prepared for DMA and a suitable end_io handler set up.
*/
-int bio_integrity_prep(struct bio *bio)
+bool bio_integrity_prep(struct bio *bio)
{
struct bio_integrity_payload *bip;
- struct blk_integrity *bi;
- struct request_queue *q;
+ struct blk_integrity *bi = blk_get_integrity(bio->bi_disk);
+ struct request_queue *q = bio->bi_disk->queue;
void *buf;
unsigned long start, end;
unsigned int len, nr_pages;
unsigned int bytes, offset, i;
unsigned int intervals;
+ blk_status_t status;
- bi = bdev_get_integrity(bio->bi_bdev);
- q = bdev_get_queue(bio->bi_bdev);
- BUG_ON(bi == NULL);
- BUG_ON(bio_integrity(bio));
+ if (!bi)
+ return true;
+ if (bio_op(bio) != REQ_OP_READ && bio_op(bio) != REQ_OP_WRITE)
+ return true;
+
+ if (!bio_sectors(bio))
+ return true;
+
+ /* Already protected? */
+ if (bio_integrity(bio))
+ return true;
+
+ if (bio_data_dir(bio) == READ) {
+ if (!bi->profile->verify_fn ||
+ !(bi->flags & BLK_INTEGRITY_VERIFY))
+ return true;
+ } else {
+ if (!bi->profile->generate_fn ||
+ !(bi->flags & BLK_INTEGRITY_GENERATE))
+ return true;
+ }
intervals = bio_integrity_intervals(bi, bio_sectors(bio));
/* Allocate kernel buffer for protection data */
len = intervals * bi->tuple_size;
buf = kmalloc(len, GFP_NOIO | q->bounce_gfp);
+ status = BLK_STS_RESOURCE;
if (unlikely(buf == NULL)) {
printk(KERN_ERR "could not allocate integrity buffer\n");
- return -ENOMEM;
+ goto err_end_io;
}
end = (((unsigned long) buf) + len + PAGE_SIZE - 1) >> PAGE_SHIFT;
@@ -304,7 +287,8 @@ int bio_integrity_prep(struct bio *bio)
if (IS_ERR(bip)) {
printk(KERN_ERR "could not allocate data integrity bioset\n");
kfree(buf);
- return PTR_ERR(bip);
+ status = BLK_STS_RESOURCE;
+ goto err_end_io;
}
bip->bip_flags |= BIP_BLOCK_INTEGRITY;
@@ -330,7 +314,7 @@ int bio_integrity_prep(struct bio *bio)
bytes, offset);
if (ret == 0)
- return 0;
+ return false;
if (ret < bytes)
break;
@@ -340,17 +324,18 @@ int bio_integrity_prep(struct bio *bio)
offset = 0;
}
- /* Install custom I/O completion handler if read verify is enabled */
- if (bio_data_dir(bio) == READ) {
- bip->bip_end_io = bio->bi_end_io;
- bio->bi_end_io = bio_integrity_endio;
+ /* Auto-generate integrity metadata if this is a write */
+ if (bio_data_dir(bio) == WRITE) {
+ bio_integrity_process(bio, &bio->bi_iter,
+ bi->profile->generate_fn);
}
+ return true;
- /* Auto-generate integrity metadata if this is a write */
- if (bio_data_dir(bio) == WRITE)
- bio_integrity_process(bio, bi->profile->generate_fn);
+err_end_io:
+ bio->bi_status = status;
+ bio_endio(bio);
+ return false;
- return 0;
}
EXPORT_SYMBOL(bio_integrity_prep);
@@ -367,17 +352,27 @@ static void bio_integrity_verify_fn(struct work_struct *work)
struct bio_integrity_payload *bip =
container_of(work, struct bio_integrity_payload, bip_work);
struct bio *bio = bip->bip_bio;
- struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
+ struct blk_integrity *bi = blk_get_integrity(bio->bi_disk);
+ struct bvec_iter iter = bio->bi_iter;
- bio->bi_error = bio_integrity_process(bio, bi->profile->verify_fn);
+ /*
+ * At the moment verify is called bio's iterator was advanced
+ * during split and completion, we need to rewind iterator to
+ * it's original position.
+ */
+ if (bio_rewind_iter(bio, &iter, iter.bi_done)) {
+ bio->bi_status = bio_integrity_process(bio, &iter,
+ bi->profile->verify_fn);
+ } else {
+ bio->bi_status = BLK_STS_IOERR;
+ }
- /* Restore original bio completion handler */
- bio->bi_end_io = bip->bip_end_io;
+ bio_integrity_free(bio);
bio_endio(bio);
}
/**
- * bio_integrity_endio - Integrity I/O completion function
+ * __bio_integrity_endio - Integrity I/O completion function
* @bio: Protected bio
* @error: Pointer to errno
*
@@ -388,27 +383,21 @@ static void bio_integrity_verify_fn(struct work_struct *work)
* in process context. This function postpones completion
* accordingly.
*/
-void bio_integrity_endio(struct bio *bio)
+bool __bio_integrity_endio(struct bio *bio)
{
+ struct blk_integrity *bi = blk_get_integrity(bio->bi_disk);
struct bio_integrity_payload *bip = bio_integrity(bio);
- BUG_ON(bip->bip_bio != bio);
-
- /* In case of an I/O error there is no point in verifying the
- * integrity metadata. Restore original bio end_io handler
- * and run it.
- */
- if (bio->bi_error) {
- bio->bi_end_io = bip->bip_end_io;
- bio_endio(bio);
-
- return;
+ if (bio_op(bio) == REQ_OP_READ && !bio->bi_status &&
+ (bip->bip_flags & BIP_BLOCK_INTEGRITY) && bi->profile->verify_fn) {
+ INIT_WORK(&bip->bip_work, bio_integrity_verify_fn);
+ queue_work(kintegrityd_wq, &bip->bip_work);
+ return false;
}
- INIT_WORK(&bip->bip_work, bio_integrity_verify_fn);
- queue_work(kintegrityd_wq, &bip->bip_work);
+ bio_integrity_free(bio);
+ return true;
}
-EXPORT_SYMBOL(bio_integrity_endio);
/**
* bio_integrity_advance - Advance integrity vector
@@ -422,9 +411,10 @@ EXPORT_SYMBOL(bio_integrity_endio);
void bio_integrity_advance(struct bio *bio, unsigned int bytes_done)
{
struct bio_integrity_payload *bip = bio_integrity(bio);
- struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
+ struct blk_integrity *bi = blk_get_integrity(bio->bi_disk);
unsigned bytes = bio_integrity_bytes(bi, bytes_done >> 9);
+ bip->bip_iter.bi_sector += bytes_done >> 9;
bvec_iter_advance(bip->bip_vec, &bip->bip_iter, bytes);
}
EXPORT_SYMBOL(bio_integrity_advance);
@@ -432,22 +422,15 @@ EXPORT_SYMBOL(bio_integrity_advance);
/**
* bio_integrity_trim - Trim integrity vector
* @bio: bio whose integrity vector to update
- * @offset: offset to first data sector
- * @sectors: number of data sectors
*
* Description: Used to trim the integrity vector in a cloned bio.
- * The ivec will be advanced corresponding to 'offset' data sectors
- * and the length will be truncated corresponding to 'len' data
- * sectors.
*/
-void bio_integrity_trim(struct bio *bio, unsigned int offset,
- unsigned int sectors)
+void bio_integrity_trim(struct bio *bio)
{
struct bio_integrity_payload *bip = bio_integrity(bio);
- struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
+ struct blk_integrity *bi = blk_get_integrity(bio->bi_disk);
- bio_integrity_advance(bio, offset << 9);
- bip->bip_iter.bi_size = bio_integrity_bytes(bi, sectors);
+ bip->bip_iter.bi_size = bio_integrity_bytes(bi, bio_sectors(bio));
}
EXPORT_SYMBOL(bio_integrity_trim);
diff --git a/block/bio.c b/block/bio.c
index 26b0810fb8ea..101c2a9b5481 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -243,9 +243,6 @@ fallback:
void bio_uninit(struct bio *bio)
{
bio_disassociate_task(bio);
-
- if (bio_integrity(bio))
- bio_integrity_free(bio);
}
EXPORT_SYMBOL(bio_uninit);
@@ -315,8 +312,8 @@ static struct bio *__bio_chain_endio(struct bio *bio)
{
struct bio *parent = bio->bi_private;
- if (!parent->bi_error)
- parent->bi_error = bio->bi_error;
+ if (!parent->bi_status)
+ parent->bi_status = bio->bi_status;
bio_put(bio);
return parent;
}
@@ -369,6 +366,8 @@ static void punt_bios_to_rescuer(struct bio_set *bs)
struct bio_list punt, nopunt;
struct bio *bio;
+ if (WARN_ON_ONCE(!bs->rescue_workqueue))
+ return;
/*
* In order to guarantee forward progress we must punt only bios that
* were allocated from this bio_set; otherwise, if there was a bio on
@@ -480,7 +479,8 @@ struct bio *bio_alloc_bioset(gfp_t gfp_mask, unsigned int nr_iovecs,
if (current->bio_list &&
(!bio_list_empty(&current->bio_list[0]) ||
- !bio_list_empty(&current->bio_list[1])))
+ !bio_list_empty(&current->bio_list[1])) &&
+ bs->rescue_workqueue)
gfp_mask &= ~__GFP_DIRECT_RECLAIM;
p = mempool_alloc(bs->bio_pool, gfp_mask);
@@ -550,7 +550,7 @@ EXPORT_SYMBOL(zero_fill_bio);
*
* Description:
* Put a reference to a &struct bio, either one you have gotten with
- * bio_alloc, bio_get or bio_clone. The last put of a bio will free it.
+ * bio_alloc, bio_get or bio_clone_*. The last put of a bio will free it.
**/
void bio_put(struct bio *bio)
{
@@ -593,12 +593,13 @@ void __bio_clone_fast(struct bio *bio, struct bio *bio_src)
BUG_ON(bio->bi_pool && BVEC_POOL_IDX(bio));
/*
- * most users will be overriding ->bi_bdev with a new target,
+ * most users will be overriding ->bi_disk with a new target,
* so we don't set nor calculate new physical/hw segment counts here
*/
- bio->bi_bdev = bio_src->bi_bdev;
+ bio->bi_disk = bio_src->bi_disk;
bio_set_flag(bio, BIO_CLONED);
bio->bi_opf = bio_src->bi_opf;
+ bio->bi_write_hint = bio_src->bi_write_hint;
bio->bi_iter = bio_src->bi_iter;
bio->bi_io_vec = bio_src->bi_io_vec;
@@ -680,8 +681,9 @@ struct bio *bio_clone_bioset(struct bio *bio_src, gfp_t gfp_mask,
bio = bio_alloc_bioset(gfp_mask, bio_segments(bio_src), bs);
if (!bio)
return NULL;
- bio->bi_bdev = bio_src->bi_bdev;
+ bio->bi_disk = bio_src->bi_disk;
bio->bi_opf = bio_src->bi_opf;
+ bio->bi_write_hint = bio_src->bi_write_hint;
bio->bi_iter.bi_sector = bio_src->bi_iter.bi_sector;
bio->bi_iter.bi_size = bio_src->bi_iter.bi_size;
@@ -924,7 +926,7 @@ static void submit_bio_wait_endio(struct bio *bio)
{
struct submit_bio_ret *ret = bio->bi_private;
- ret->error = bio->bi_error;
+ ret->error = blk_status_to_errno(bio->bi_status);
complete(&ret->event);
}
@@ -934,6 +936,10 @@ static void submit_bio_wait_endio(struct bio *bio)
*
* Simple wrapper around submit_bio(). Returns 0 on success, or the error from
* bio_endio() on failure.
+ *
+ * WARNING: Unlike to how submit_bio() is usually used, this function does not
+ * result in bio reference to be consumed. The caller must drop the reference
+ * on his own.
*/
int submit_bio_wait(struct bio *bio)
{
@@ -1233,8 +1239,8 @@ struct bio *bio_copy_user_iov(struct request_queue *q,
*/
bmd->is_our_pages = map_data ? 0 : 1;
memcpy(bmd->iov, iter->iov, sizeof(struct iovec) * iter->nr_segs);
- iov_iter_init(&bmd->iter, iter->type, bmd->iov,
- iter->nr_segs, iter->count);
+ bmd->iter = *iter;
+ bmd->iter.iov = bmd->iov;
ret = -ENOMEM;
bio = bio_kmalloc(gfp_mask, nr_pages);
@@ -1325,6 +1331,7 @@ struct bio *bio_map_user_iov(struct request_queue *q,
int ret, offset;
struct iov_iter i;
struct iovec iov;
+ struct bio_vec *bvec;
iov_for_each(iov, i, *iter) {
unsigned long uaddr = (unsigned long) iov.iov_base;
@@ -1369,7 +1376,12 @@ struct bio *bio_map_user_iov(struct request_queue *q,
ret = get_user_pages_fast(uaddr, local_nr_pages,
(iter->type & WRITE) != WRITE,
&pages[cur_page]);
- if (ret < local_nr_pages) {
+ if (unlikely(ret < local_nr_pages)) {
+ for (j = cur_page; j < page_limit; j++) {
+ if (!pages[j])
+ break;
+ put_page(pages[j]);
+ }
ret = -EFAULT;
goto out_unmap;
}
@@ -1377,6 +1389,7 @@ struct bio *bio_map_user_iov(struct request_queue *q,
offset = offset_in_page(uaddr);
for (j = cur_page; j < page_limit; j++) {
unsigned int bytes = PAGE_SIZE - offset;
+ unsigned short prev_bi_vcnt = bio->bi_vcnt;
if (len <= 0)
break;
@@ -1391,6 +1404,13 @@ struct bio *bio_map_user_iov(struct request_queue *q,
bytes)
break;
+ /*
+ * check if vector was merged with previous
+ * drop page reference if needed
+ */
+ if (bio->bi_vcnt == prev_bi_vcnt)
+ put_page(pages[j]);
+
len -= bytes;
offset = 0;
}
@@ -1417,10 +1437,8 @@ struct bio *bio_map_user_iov(struct request_queue *q,
return bio;
out_unmap:
- for (j = 0; j < nr_pages; j++) {
- if (!pages[j])
- break;
- put_page(pages[j]);
+ bio_for_each_segment_all(bvec, bio, j) {
+ put_page(bvec->bv_page);
}
out:
kfree(pages);
@@ -1730,29 +1748,29 @@ void bio_check_pages_dirty(struct bio *bio)
}
}
-void generic_start_io_acct(int rw, unsigned long sectors,
- struct hd_struct *part)
+void generic_start_io_acct(struct request_queue *q, int rw,
+ unsigned long sectors, struct hd_struct *part)
{
int cpu = part_stat_lock();
- part_round_stats(cpu, part);
+ part_round_stats(q, cpu, part);
part_stat_inc(cpu, part, ios[rw]);
part_stat_add(cpu, part, sectors[rw], sectors);
- part_inc_in_flight(part, rw);
+ part_inc_in_flight(q, part, rw);
part_stat_unlock();
}
EXPORT_SYMBOL(generic_start_io_acct);
-void generic_end_io_acct(int rw, struct hd_struct *part,
- unsigned long start_time)
+void generic_end_io_acct(struct request_queue *q, int rw,
+ struct hd_struct *part, unsigned long start_time)
{
unsigned long duration = jiffies - start_time;
int cpu = part_stat_lock();
part_stat_add(cpu, part, ticks[rw], duration);
- part_round_stats(cpu, part);
- part_dec_in_flight(part, rw);
+ part_round_stats(q, cpu, part);
+ part_dec_in_flight(q, part, rw);
part_stat_unlock();
}
@@ -1808,6 +1826,8 @@ void bio_endio(struct bio *bio)
again:
if (!bio_remaining_done(bio))
return;
+ if (!bio_integrity_endio(bio))
+ return;
/*
* Need to have a real endio function for chained bios, otherwise
@@ -1822,13 +1842,15 @@ again:
goto again;
}
- if (bio->bi_bdev && bio_flagged(bio, BIO_TRACE_COMPLETION)) {
- trace_block_bio_complete(bdev_get_queue(bio->bi_bdev),
- bio, bio->bi_error);
+ if (bio->bi_disk && bio_flagged(bio, BIO_TRACE_COMPLETION)) {
+ trace_block_bio_complete(bio->bi_disk->queue, bio,
+ blk_status_to_errno(bio->bi_status));
bio_clear_flag(bio, BIO_TRACE_COMPLETION);
}
blk_throtl_bio_endio(bio);
+ /* release cgroup info */
+ bio_uninit(bio);
if (bio->bi_end_io)
bio->bi_end_io(bio);
}
@@ -1863,7 +1885,7 @@ struct bio *bio_split(struct bio *bio, int sectors,
split->bi_iter.bi_size = sectors << 9;
if (bio_integrity(split))
- bio_integrity_trim(split, 0, sectors);
+ bio_integrity_trim(split);
bio_advance(bio, split->bi_iter.bi_size);
@@ -1895,6 +1917,10 @@ void bio_trim(struct bio *bio, int offset, int size)
bio_advance(bio, offset << 9);
bio->bi_iter.bi_size = size;
+
+ if (bio_integrity(bio))
+ bio_integrity_trim(bio);
+
}
EXPORT_SYMBOL_GPL(bio_trim);
@@ -1927,9 +1953,29 @@ void bioset_free(struct bio_set *bs)
}
EXPORT_SYMBOL(bioset_free);
-static struct bio_set *__bioset_create(unsigned int pool_size,
- unsigned int front_pad,
- bool create_bvec_pool)
+/**
+ * bioset_create - Create a bio_set
+ * @pool_size: Number of bio and bio_vecs to cache in the mempool
+ * @front_pad: Number of bytes to allocate in front of the returned bio
+ * @flags: Flags to modify behavior, currently %BIOSET_NEED_BVECS
+ * and %BIOSET_NEED_RESCUER
+ *
+ * Description:
+ * Set up a bio_set to be used with @bio_alloc_bioset. Allows the caller
+ * to ask for a number of bytes to be allocated in front of the bio.
+ * Front pad allocation is useful for embedding the bio inside
+ * another structure, to avoid allocating extra data to go with the bio.
+ * Note that the bio must be embedded at the END of that structure always,
+ * or things will break badly.
+ * If %BIOSET_NEED_BVECS is set in @flags, a separate pool will be allocated
+ * for allocating iovecs. This pool is not needed e.g. for bio_clone_fast().
+ * If %BIOSET_NEED_RESCUER is set, a workqueue is created which can be used to
+ * dispatch queued requests when the mempool runs out of space.
+ *
+ */
+struct bio_set *bioset_create(unsigned int pool_size,
+ unsigned int front_pad,
+ int flags)
{
unsigned int back_pad = BIO_INLINE_VECS * sizeof(struct bio_vec);
struct bio_set *bs;
@@ -1954,12 +2000,15 @@ static struct bio_set *__bioset_create(unsigned int pool_size,
if (!bs->bio_pool)
goto bad;
- if (create_bvec_pool) {
+ if (flags & BIOSET_NEED_BVECS) {
bs->bvec_pool = biovec_create_pool(pool_size);
if (!bs->bvec_pool)
goto bad;
}
+ if (!(flags & BIOSET_NEED_RESCUER))
+ return bs;
+
bs->rescue_workqueue = alloc_workqueue("bioset", WQ_MEM_RECLAIM, 0);
if (!bs->rescue_workqueue)
goto bad;
@@ -1969,41 +2018,8 @@ bad:
bioset_free(bs);
return NULL;
}
-
-/**
- * bioset_create - Create a bio_set
- * @pool_size: Number of bio and bio_vecs to cache in the mempool
- * @front_pad: Number of bytes to allocate in front of the returned bio
- *
- * Description:
- * Set up a bio_set to be used with @bio_alloc_bioset. Allows the caller
- * to ask for a number of bytes to be allocated in front of the bio.
- * Front pad allocation is useful for embedding the bio inside
- * another structure, to avoid allocating extra data to go with the bio.
- * Note that the bio must be embedded at the END of that structure always,
- * or things will break badly.
- */
-struct bio_set *bioset_create(unsigned int pool_size, unsigned int front_pad)
-{
- return __bioset_create(pool_size, front_pad, true);
-}
EXPORT_SYMBOL(bioset_create);
-/**
- * bioset_create_nobvec - Create a bio_set without bio_vec mempool
- * @pool_size: Number of bio to cache in the mempool
- * @front_pad: Number of bytes to allocate in front of the returned bio
- *
- * Description:
- * Same functionality as bioset_create() except that mempool is not
- * created for bio_vecs. Saving some memory for bio_clone_fast() users.
- */
-struct bio_set *bioset_create_nobvec(unsigned int pool_size, unsigned int front_pad)
-{
- return __bioset_create(pool_size, front_pad, false);
-}
-EXPORT_SYMBOL(bioset_create_nobvec);
-
#ifdef CONFIG_BLK_CGROUP
/**
@@ -2085,7 +2101,7 @@ void bio_clone_blkcg_association(struct bio *dst, struct bio *src)
if (src->bi_css)
WARN_ON(bio_associate_blkcg(dst, src->bi_css));
}
-
+EXPORT_SYMBOL_GPL(bio_clone_blkcg_association);
#endif /* CONFIG_BLK_CGROUP */
static void __init biovec_init_slabs(void)
@@ -2118,7 +2134,7 @@ static int __init init_bio(void)
bio_integrity_init();
biovec_init_slabs();
- fs_bio_set = bioset_create(BIO_POOL_SIZE, 0);
+ fs_bio_set = bioset_create(BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS);
if (!fs_bio_set)
panic("bio: can't allocate bios\n");
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 0480892e97e5..d3f56baee936 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -1067,7 +1067,7 @@ blkcg_css_alloc(struct cgroup_subsys_state *parent_css)
blkcg = kzalloc(sizeof(*blkcg), GFP_KERNEL);
if (!blkcg) {
ret = ERR_PTR(-ENOMEM);
- goto free_blkcg;
+ goto unlock;
}
}
@@ -1111,8 +1111,10 @@ free_pd_blkcg:
for (i--; i >= 0; i--)
if (blkcg->cpd[i])
blkcg_policy[i]->cpd_free_fn(blkcg->cpd[i]);
-free_blkcg:
- kfree(blkcg);
+
+ if (blkcg != &blkcg_root)
+ kfree(blkcg);
+unlock:
mutex_unlock(&blkcg_pol_mutex);
return ret;
}
diff --git a/block/blk-core.c b/block/blk-core.c
index a7421b772d0e..048be4aa6024 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -129,11 +129,70 @@ void blk_rq_init(struct request_queue *q, struct request *rq)
}
EXPORT_SYMBOL(blk_rq_init);
+static const struct {
+ int errno;
+ const char *name;
+} blk_errors[] = {
+ [BLK_STS_OK] = { 0, "" },
+ [BLK_STS_NOTSUPP] = { -EOPNOTSUPP, "operation not supported" },
+ [BLK_STS_TIMEOUT] = { -ETIMEDOUT, "timeout" },
+ [BLK_STS_NOSPC] = { -ENOSPC, "critical space allocation" },
+ [BLK_STS_TRANSPORT] = { -ENOLINK, "recoverable transport" },
+ [BLK_STS_TARGET] = { -EREMOTEIO, "critical target" },
+ [BLK_STS_NEXUS] = { -EBADE, "critical nexus" },
+ [BLK_STS_MEDIUM] = { -ENODATA, "critical medium" },
+ [BLK_STS_PROTECTION] = { -EILSEQ, "protection" },
+ [BLK_STS_RESOURCE] = { -ENOMEM, "kernel resource" },
+ [BLK_STS_AGAIN] = { -EAGAIN, "nonblocking retry" },
+
+ /* device mapper special case, should not leak out: */
+ [BLK_STS_DM_REQUEUE] = { -EREMCHG, "dm internal retry" },
+
+ /* everything else not covered above: */
+ [BLK_STS_IOERR] = { -EIO, "I/O" },
+};
+
+blk_status_t errno_to_blk_status(int errno)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(blk_errors); i++) {
+ if (blk_errors[i].errno == errno)
+ return (__force blk_status_t)i;
+ }
+
+ return BLK_STS_IOERR;
+}
+EXPORT_SYMBOL_GPL(errno_to_blk_status);
+
+int blk_status_to_errno(blk_status_t status)
+{
+ int idx = (__force int)status;
+
+ if (WARN_ON_ONCE(idx >= ARRAY_SIZE(blk_errors)))
+ return -EIO;
+ return blk_errors[idx].errno;
+}
+EXPORT_SYMBOL_GPL(blk_status_to_errno);
+
+static void print_req_error(struct request *req, blk_status_t status)
+{
+ int idx = (__force int)status;
+
+ if (WARN_ON_ONCE(idx >= ARRAY_SIZE(blk_errors)))
+ return;
+
+ printk_ratelimited(KERN_ERR "%s: %s error, dev %s, sector %llu\n",
+ __func__, blk_errors[idx].name, req->rq_disk ?
+ req->rq_disk->disk_name : "?",
+ (unsigned long long)blk_rq_pos(req));
+}
+
static void req_bio_endio(struct request *rq, struct bio *bio,
- unsigned int nbytes, int error)
+ unsigned int nbytes, blk_status_t error)
{
if (error)
- bio->bi_error = error;
+ bio->bi_status = error;
if (unlikely(rq->rq_flags & RQF_QUIET))
bio_set_flag(bio, BIO_QUIET);
@@ -177,10 +236,13 @@ static void blk_delay_work(struct work_struct *work)
* Description:
* Sometimes queueing needs to be postponed for a little while, to allow
* resources to come back. This function will make sure that queueing is
- * restarted around the specified time. Queue lock must be held.
+ * restarted around the specified time.
*/
void blk_delay_queue(struct request_queue *q, unsigned long msecs)
{
+ lockdep_assert_held(q->queue_lock);
+ WARN_ON_ONCE(q->mq_ops);
+
if (likely(!blk_queue_dead(q)))
queue_delayed_work(kblockd_workqueue, &q->delay_work,
msecs_to_jiffies(msecs));
@@ -198,6 +260,9 @@ EXPORT_SYMBOL(blk_delay_queue);
**/
void blk_start_queue_async(struct request_queue *q)
{
+ lockdep_assert_held(q->queue_lock);
+ WARN_ON_ONCE(q->mq_ops);
+
queue_flag_clear(QUEUE_FLAG_STOPPED, q);
blk_run_queue_async(q);
}
@@ -210,11 +275,13 @@ EXPORT_SYMBOL(blk_start_queue_async);
* Description:
* blk_start_queue() will clear the stop flag on the queue, and call
* the request_fn for the queue if it was in a stopped state when
- * entered. Also see blk_stop_queue(). Queue lock must be held.
+ * entered. Also see blk_stop_queue().
**/
void blk_start_queue(struct request_queue *q)
{
- WARN_ON(!irqs_disabled());
+ lockdep_assert_held(q->queue_lock);
+ WARN_ON(!in_interrupt() && !irqs_disabled());
+ WARN_ON_ONCE(q->mq_ops);
queue_flag_clear(QUEUE_FLAG_STOPPED, q);
__blk_run_queue(q);
@@ -233,10 +300,13 @@ EXPORT_SYMBOL(blk_start_queue);
* or if it simply chooses not to queue more I/O at one point, it can
* call this function to prevent the request_fn from being called until
* the driver has signalled it's ready to go again. This happens by calling
- * blk_start_queue() to restart queue operations. Queue lock must be held.
+ * blk_start_queue() to restart queue operations.
**/
void blk_stop_queue(struct request_queue *q)
{
+ lockdep_assert_held(q->queue_lock);
+ WARN_ON_ONCE(q->mq_ops);
+
cancel_delayed_work(&q->delay_work);
queue_flag_set(QUEUE_FLAG_STOPPED, q);
}
@@ -289,6 +359,9 @@ EXPORT_SYMBOL(blk_sync_queue);
*/
inline void __blk_run_queue_uncond(struct request_queue *q)
{
+ lockdep_assert_held(q->queue_lock);
+ WARN_ON_ONCE(q->mq_ops);
+
if (unlikely(blk_queue_dead(q)))
return;
@@ -310,11 +383,13 @@ EXPORT_SYMBOL_GPL(__blk_run_queue_uncond);
* @q: The queue to run
*
* Description:
- * See @blk_run_queue. This variant must be called with the queue lock
- * held and interrupts disabled.
+ * See @blk_run_queue.
*/
void __blk_run_queue(struct request_queue *q)
{
+ lockdep_assert_held(q->queue_lock);
+ WARN_ON_ONCE(q->mq_ops);
+
if (unlikely(blk_queue_stopped(q)))
return;
@@ -328,10 +403,18 @@ EXPORT_SYMBOL(__blk_run_queue);
*
* Description:
* Tells kblockd to perform the equivalent of @blk_run_queue on behalf
- * of us. The caller must hold the queue lock.
+ * of us.
+ *
+ * Note:
+ * Since it is not allowed to run q->delay_work after blk_cleanup_queue()
+ * has canceled q->delay_work, callers must hold the queue lock to avoid
+ * race conditions between blk_cleanup_queue() and blk_run_queue_async().
*/
void blk_run_queue_async(struct request_queue *q)
{
+ lockdep_assert_held(q->queue_lock);
+ WARN_ON_ONCE(q->mq_ops);
+
if (likely(!blk_queue_stopped(q) && !blk_queue_dead(q)))
mod_delayed_work(kblockd_workqueue, &q->delay_work, 0);
}
@@ -349,6 +432,8 @@ void blk_run_queue(struct request_queue *q)
{
unsigned long flags;
+ WARN_ON_ONCE(q->mq_ops);
+
spin_lock_irqsave(q->queue_lock, flags);
__blk_run_queue(q);
spin_unlock_irqrestore(q->queue_lock, flags);
@@ -377,6 +462,7 @@ static void __blk_drain_queue(struct request_queue *q, bool drain_all)
int i;
lockdep_assert_held(q->queue_lock);
+ WARN_ON_ONCE(q->mq_ops);
while (true) {
bool drain = false;
@@ -455,6 +541,8 @@ static void __blk_drain_queue(struct request_queue *q, bool drain_all)
*/
void blk_queue_bypass_start(struct request_queue *q)
{
+ WARN_ON_ONCE(q->mq_ops);
+
spin_lock_irq(q->queue_lock);
q->bypass_depth++;
queue_flag_set(QUEUE_FLAG_BYPASS, q);
@@ -481,6 +569,9 @@ EXPORT_SYMBOL_GPL(blk_queue_bypass_start);
* @q: queue of interest
*
* Leave bypass mode and restore the normal queueing behavior.
+ *
+ * Note: although blk_queue_bypass_start() is only called for blk-sq queues,
+ * this function is called for both blk-sq and blk-mq queues.
*/
void blk_queue_bypass_end(struct request_queue *q)
{
@@ -732,7 +823,7 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
if (q->id < 0)
goto fail_q;
- q->bio_split = bioset_create(BIO_POOL_SIZE, 0);
+ q->bio_split = bioset_create(BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS);
if (!q->bio_split)
goto fail_id;
@@ -763,6 +854,9 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
kobject_init(&q->kobj, &blk_queue_ktype);
+#ifdef CONFIG_BLK_DEV_IO_TRACE
+ mutex_init(&q->blk_trace_mutex);
+#endif
mutex_init(&q->sysfs_lock);
spin_lock_init(&q->__queue_lock);
@@ -878,6 +972,8 @@ static blk_qc_t blk_queue_bio(struct request_queue *q, struct bio *bio);
int blk_init_allocated_queue(struct request_queue *q)
{
+ WARN_ON_ONCE(q->mq_ops);
+
q->fq = blk_alloc_flush_queue(q, NUMA_NO_NODE, q->cmd_size);
if (!q->fq)
return -ENOMEM;
@@ -1015,6 +1111,8 @@ int blk_update_nr_requests(struct request_queue *q, unsigned int nr)
struct request_list *rl;
int on_thresh, off_thresh;
+ WARN_ON_ONCE(q->mq_ops);
+
spin_lock_irq(q->queue_lock);
q->nr_requests = nr;
blk_queue_congestion_threshold(q);
@@ -1077,6 +1175,8 @@ static struct request *__get_request(struct request_list *rl, unsigned int op,
int may_queue;
req_flags_t rq_flags = RQF_ALLOCED;
+ lockdep_assert_held(q->queue_lock);
+
if (unlikely(blk_queue_dying(q)))
return ERR_PTR(-ENODEV);
@@ -1250,12 +1350,20 @@ static struct request *get_request(struct request_queue *q, unsigned int op,
struct request_list *rl;
struct request *rq;
+ lockdep_assert_held(q->queue_lock);
+ WARN_ON_ONCE(q->mq_ops);
+
rl = blk_get_rl(q, bio); /* transferred to @rq on success */
retry:
rq = __get_request(rl, op, bio, gfp_mask);
if (!IS_ERR(rq))
return rq;
+ if (op & REQ_NOWAIT) {
+ blk_put_rl(rl);
+ return ERR_PTR(-EAGAIN);
+ }
+
if (!gfpflags_allow_blocking(gfp_mask) || unlikely(blk_queue_dying(q))) {
blk_put_rl(rl);
return rq;
@@ -1283,16 +1391,18 @@ retry:
goto retry;
}
-static struct request *blk_old_get_request(struct request_queue *q, int rw,
- gfp_t gfp_mask)
+static struct request *blk_old_get_request(struct request_queue *q,
+ unsigned int op, gfp_t gfp_mask)
{
struct request *rq;
+ WARN_ON_ONCE(q->mq_ops);
+
/* create ioc upfront */
create_io_context(gfp_mask, q->node);
spin_lock_irq(q->queue_lock);
- rq = get_request(q, rw, NULL, gfp_mask);
+ rq = get_request(q, op, NULL, gfp_mask);
if (IS_ERR(rq)) {
spin_unlock_irq(q->queue_lock);
return rq;
@@ -1305,14 +1415,24 @@ static struct request *blk_old_get_request(struct request_queue *q, int rw,
return rq;
}
-struct request *blk_get_request(struct request_queue *q, int rw, gfp_t gfp_mask)
+struct request *blk_get_request(struct request_queue *q, unsigned int op,
+ gfp_t gfp_mask)
{
- if (q->mq_ops)
- return blk_mq_alloc_request(q, rw,
+ struct request *req;
+
+ if (q->mq_ops) {
+ req = blk_mq_alloc_request(q, op,
(gfp_mask & __GFP_DIRECT_RECLAIM) ?
0 : BLK_MQ_REQ_NOWAIT);
- else
- return blk_old_get_request(q, rw, gfp_mask);
+ if (!IS_ERR(req) && q->mq_ops->initialize_rq_fn)
+ q->mq_ops->initialize_rq_fn(req);
+ } else {
+ req = blk_old_get_request(q, op, gfp_mask);
+ if (!IS_ERR(req) && q->initialize_rq_fn)
+ q->initialize_rq_fn(req);
+ }
+
+ return req;
}
EXPORT_SYMBOL(blk_get_request);
@@ -1328,6 +1448,9 @@ EXPORT_SYMBOL(blk_get_request);
*/
void blk_requeue_request(struct request_queue *q, struct request *rq)
{
+ lockdep_assert_held(q->queue_lock);
+ WARN_ON_ONCE(q->mq_ops);
+
blk_delete_timer(rq);
blk_clear_rq_complete(rq);
trace_block_rq_requeue(q, rq);
@@ -1349,15 +1472,10 @@ static void add_acct_request(struct request_queue *q, struct request *rq,
__elv_add_request(q, rq, where);
}
-static void part_round_stats_single(int cpu, struct hd_struct *part,
- unsigned long now)
+static void part_round_stats_single(struct request_queue *q, int cpu,
+ struct hd_struct *part, unsigned long now,
+ unsigned int inflight)
{
- int inflight;
-
- if (now == part->stamp)
- return;
-
- inflight = part_in_flight(part);
if (inflight) {
__part_stat_add(cpu, part, time_in_queue,
inflight * (now - part->stamp));
@@ -1368,6 +1486,7 @@ static void part_round_stats_single(int cpu, struct hd_struct *part,
/**
* part_round_stats() - Round off the performance stats on a struct disk_stats.
+ * @q: target block queue
* @cpu: cpu number for stats access
* @part: target partition
*
@@ -1382,13 +1501,31 @@ static void part_round_stats_single(int cpu, struct hd_struct *part,
* /proc/diskstats. This accounts immediately for all queue usage up to
* the current jiffies and restarts the counters again.
*/
-void part_round_stats(int cpu, struct hd_struct *part)
+void part_round_stats(struct request_queue *q, int cpu, struct hd_struct *part)
{
+ struct hd_struct *part2 = NULL;
unsigned long now = jiffies;
+ unsigned int inflight[2];
+ int stats = 0;
+
+ if (part->stamp != now)
+ stats |= 1;
+
+ if (part->partno) {
+ part2 = &part_to_disk(part)->part0;
+ if (part2->stamp != now)
+ stats |= 2;
+ }
- if (part->partno)
- part_round_stats_single(cpu, &part_to_disk(part)->part0, now);
- part_round_stats_single(cpu, part, now);
+ if (!stats)
+ return;
+
+ part_in_flight(q, part, inflight);
+
+ if (stats & 2)
+ part_round_stats_single(q, cpu, part2, now, inflight[1]);
+ if (stats & 1)
+ part_round_stats_single(q, cpu, part, now, inflight[0]);
}
EXPORT_SYMBOL_GPL(part_round_stats);
@@ -1402,9 +1539,6 @@ static void blk_pm_put_request(struct request *rq)
static inline void blk_pm_put_request(struct request *rq) {}
#endif
-/*
- * queue lock must be held
- */
void __blk_put_request(struct request_queue *q, struct request *req)
{
req_flags_t rq_flags = req->rq_flags;
@@ -1417,6 +1551,8 @@ void __blk_put_request(struct request_queue *q, struct request *req)
return;
}
+ lockdep_assert_held(q->queue_lock);
+
blk_pm_put_request(req);
elv_completed_request(q, req);
@@ -1646,6 +1782,7 @@ void blk_init_request_from_bio(struct request *req, struct bio *bio)
req->ioprio = ioc->ioprio;
else
req->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_NONE, 0);
+ req->write_hint = bio->bi_write_hint;
blk_rq_bio_prep(req->q, req, bio);
}
EXPORT_SYMBOL_GPL(blk_init_request_from_bio);
@@ -1665,13 +1802,10 @@ static blk_qc_t blk_queue_bio(struct request_queue *q, struct bio *bio)
*/
blk_queue_bounce(q, &bio);
- blk_queue_split(q, &bio, q->bio_split);
+ blk_queue_split(q, &bio);
- if (bio_integrity_enabled(bio) && bio_integrity_prep(bio)) {
- bio->bi_error = -EIO;
- bio_endio(bio);
+ if (!bio_integrity_prep(bio))
return BLK_QC_T_NONE;
- }
if (op_is_flush(bio->bi_opf)) {
spin_lock_irq(q->queue_lock);
@@ -1726,7 +1860,10 @@ get_rq:
req = get_request(q, bio->bi_opf, bio, GFP_NOIO);
if (IS_ERR(req)) {
__wbt_done(q->rq_wb, wb_acct);
- bio->bi_error = PTR_ERR(req);
+ if (PTR_ERR(req) == -ENOMEM)
+ bio->bi_status = BLK_STS_RESOURCE;
+ else
+ bio->bi_status = BLK_STS_IOERR;
bio_endio(bio);
goto out_unlock;
}
@@ -1776,40 +1913,15 @@ out_unlock:
return BLK_QC_T_NONE;
}
-/*
- * If bio->bi_dev is a partition, remap the location
- */
-static inline void blk_partition_remap(struct bio *bio)
-{
- struct block_device *bdev = bio->bi_bdev;
-
- /*
- * Zone reset does not include bi_size so bio_sectors() is always 0.
- * Include a test for the reset op code and perform the remap if needed.
- */
- if (bdev != bdev->bd_contains &&
- (bio_sectors(bio) || bio_op(bio) == REQ_OP_ZONE_RESET)) {
- struct hd_struct *p = bdev->bd_part;
-
- bio->bi_iter.bi_sector += p->start_sect;
- bio->bi_bdev = bdev->bd_contains;
-
- trace_block_bio_remap(bdev_get_queue(bio->bi_bdev), bio,
- bdev->bd_dev,
- bio->bi_iter.bi_sector - p->start_sect);
- }
-}
-
static void handle_bad_sector(struct bio *bio)
{
char b[BDEVNAME_SIZE];
printk(KERN_INFO "attempt to access beyond end of device\n");
printk(KERN_INFO "%s: rw=%d, want=%Lu, limit=%Lu\n",
- bdevname(bio->bi_bdev, b),
- bio->bi_opf,
+ bio_devname(bio, b), bio->bi_opf,
(unsigned long long)bio_end_sector(bio),
- (long long)(i_size_read(bio->bi_bdev->bd_inode) >> 9));
+ (long long)get_capacity(bio->bi_disk));
}
#ifdef CONFIG_FAIL_MAKE_REQUEST
@@ -1848,6 +1960,38 @@ static inline bool should_fail_request(struct hd_struct *part,
#endif /* CONFIG_FAIL_MAKE_REQUEST */
/*
+ * Remap block n of partition p to block n+start(p) of the disk.
+ */
+static inline int blk_partition_remap(struct bio *bio)
+{
+ struct hd_struct *p;
+ int ret = 0;
+
+ /*
+ * Zone reset does not include bi_size so bio_sectors() is always 0.
+ * Include a test for the reset op code and perform the remap if needed.
+ */
+ if (!bio->bi_partno ||
+ (!bio_sectors(bio) && bio_op(bio) != REQ_OP_ZONE_RESET))
+ return 0;
+
+ rcu_read_lock();
+ p = __disk_get_part(bio->bi_disk, bio->bi_partno);
+ if (likely(p && !should_fail_request(p, bio->bi_iter.bi_size))) {
+ bio->bi_iter.bi_sector += p->start_sect;
+ bio->bi_partno = 0;
+ trace_block_bio_remap(bio->bi_disk->queue, bio, part_devt(p),
+ bio->bi_iter.bi_sector - p->start_sect);
+ } else {
+ printk("%s: fail for partition %d\n", __func__, bio->bi_partno);
+ ret = -EIO;
+ }
+ rcu_read_unlock();
+
+ return ret;
+}
+
+/*
* Check whether this bio extends beyond the end of the device.
*/
static inline int bio_check_eod(struct bio *bio, unsigned int nr_sectors)
@@ -1858,7 +2002,7 @@ static inline int bio_check_eod(struct bio *bio, unsigned int nr_sectors)
return 0;
/* Test device or partition size, when known. */
- maxsector = i_size_read(bio->bi_bdev->bd_inode) >> 9;
+ maxsector = get_capacity(bio->bi_disk);
if (maxsector) {
sector_t sector = bio->bi_iter.bi_sector;
@@ -1881,36 +2025,36 @@ generic_make_request_checks(struct bio *bio)
{
struct request_queue *q;
int nr_sectors = bio_sectors(bio);
- int err = -EIO;
+ blk_status_t status = BLK_STS_IOERR;
char b[BDEVNAME_SIZE];
- struct hd_struct *part;
might_sleep();
if (bio_check_eod(bio, nr_sectors))
goto end_io;
- q = bdev_get_queue(bio->bi_bdev);
+ q = bio->bi_disk->queue;
if (unlikely(!q)) {
printk(KERN_ERR
"generic_make_request: Trying to access "
"nonexistent block-device %s (%Lu)\n",
- bdevname(bio->bi_bdev, b),
- (long long) bio->bi_iter.bi_sector);
+ bio_devname(bio, b), (long long)bio->bi_iter.bi_sector);
goto end_io;
}
- part = bio->bi_bdev->bd_part;
- if (should_fail_request(part, bio->bi_iter.bi_size) ||
- should_fail_request(&part_to_disk(part)->part0,
- bio->bi_iter.bi_size))
- goto end_io;
-
/*
- * If this device has partitions, remap block n
- * of partition p to block n+start(p) of the disk.
+ * For a REQ_NOWAIT based request, return -EOPNOTSUPP
+ * if queue is not a request based queue.
*/
- blk_partition_remap(bio);
+
+ if ((bio->bi_opf & REQ_NOWAIT) && !queue_is_rq_based(q))
+ goto not_supported;
+
+ if (should_fail_request(&bio->bi_disk->part0, bio->bi_iter.bi_size))
+ goto end_io;
+
+ if (blk_partition_remap(bio))
+ goto end_io;
if (bio_check_eod(bio, nr_sectors))
goto end_io;
@@ -1924,7 +2068,7 @@ generic_make_request_checks(struct bio *bio)
!test_bit(QUEUE_FLAG_WC, &q->queue_flags)) {
bio->bi_opf &= ~(REQ_PREFLUSH | REQ_FUA);
if (!nr_sectors) {
- err = 0;
+ status = BLK_STS_OK;
goto end_io;
}
}
@@ -1939,16 +2083,16 @@ generic_make_request_checks(struct bio *bio)
goto not_supported;
break;
case REQ_OP_WRITE_SAME:
- if (!bdev_write_same(bio->bi_bdev))
+ if (!q->limits.max_write_same_sectors)
goto not_supported;
break;
case REQ_OP_ZONE_REPORT:
case REQ_OP_ZONE_RESET:
- if (!bdev_is_zoned(bio->bi_bdev))
+ if (!blk_queue_is_zoned(q))
goto not_supported;
break;
case REQ_OP_WRITE_ZEROES:
- if (!bdev_write_zeroes_sectors(bio->bi_bdev))
+ if (!q->limits.max_write_zeroes_sectors)
goto not_supported;
break;
default:
@@ -1976,9 +2120,9 @@ generic_make_request_checks(struct bio *bio)
return true;
not_supported:
- err = -EOPNOTSUPP;
+ status = BLK_STS_NOTSUPP;
end_io:
- bio->bi_error = err;
+ bio->bi_status = status;
bio_endio(bio);
return false;
}
@@ -2055,9 +2199,9 @@ blk_qc_t generic_make_request(struct bio *bio)
bio_list_init(&bio_list_on_stack[0]);
current->bio_list = bio_list_on_stack;
do {
- struct request_queue *q = bdev_get_queue(bio->bi_bdev);
+ struct request_queue *q = bio->bi_disk->queue;
- if (likely(blk_queue_enter(q, false) == 0)) {
+ if (likely(blk_queue_enter(q, bio->bi_opf & REQ_NOWAIT) == 0)) {
struct bio_list lower, same;
/* Create a fresh bio_list for all subordinate requests */
@@ -2073,7 +2217,7 @@ blk_qc_t generic_make_request(struct bio *bio)
bio_list_init(&lower);
bio_list_init(&same);
while ((bio = bio_list_pop(&bio_list_on_stack[0])) != NULL)
- if (q == bdev_get_queue(bio->bi_bdev))
+ if (q == bio->bi_disk->queue)
bio_list_add(&same, bio);
else
bio_list_add(&lower, bio);
@@ -2082,7 +2226,11 @@ blk_qc_t generic_make_request(struct bio *bio)
bio_list_merge(&bio_list_on_stack[0], &same);
bio_list_merge(&bio_list_on_stack[0], &bio_list_on_stack[1]);
} else {
- bio_io_error(bio);
+ if (unlikely(!blk_queue_dying(q) &&
+ (bio->bi_opf & REQ_NOWAIT)))
+ bio_wouldblock_error(bio);
+ else
+ bio_io_error(bio);
}
bio = bio_list_pop(&bio_list_on_stack[0]);
} while (bio);
@@ -2112,7 +2260,7 @@ blk_qc_t submit_bio(struct bio *bio)
unsigned int count;
if (unlikely(bio_op(bio) == REQ_OP_WRITE_SAME))
- count = bdev_logical_block_size(bio->bi_bdev) >> 9;
+ count = queue_logical_block_size(bio->bi_disk->queue);
else
count = bio_sectors(bio);
@@ -2129,8 +2277,7 @@ blk_qc_t submit_bio(struct bio *bio)
current->comm, task_pid_nr(current),
op_is_write(bio_op(bio)) ? "WRITE" : "READ",
(unsigned long long)bio->bi_iter.bi_sector,
- bdevname(bio->bi_bdev, b),
- count);
+ bio_devname(bio, b), count);
}
}
@@ -2183,29 +2330,34 @@ static int blk_cloned_rq_check_limits(struct request_queue *q,
* @q: the queue to submit the request
* @rq: the request being queued
*/
-int blk_insert_cloned_request(struct request_queue *q, struct request *rq)
+blk_status_t blk_insert_cloned_request(struct request_queue *q, struct request *rq)
{
unsigned long flags;
int where = ELEVATOR_INSERT_BACK;
if (blk_cloned_rq_check_limits(q, rq))
- return -EIO;
+ return BLK_STS_IOERR;
if (rq->rq_disk &&
should_fail_request(&rq->rq_disk->part0, blk_rq_bytes(rq)))
- return -EIO;
+ return BLK_STS_IOERR;
if (q->mq_ops) {
if (blk_queue_io_stat(q))
blk_account_io_start(rq, true);
- blk_mq_sched_insert_request(rq, false, true, false, false);
- return 0;
+ /*
+ * Since we have a scheduler attached on the top device,
+ * bypass a potential scheduler on the bottom device for
+ * insert.
+ */
+ blk_mq_request_bypass_insert(rq);
+ return BLK_STS_OK;
}
spin_lock_irqsave(q->queue_lock, flags);
if (unlikely(blk_queue_dying(q))) {
spin_unlock_irqrestore(q->queue_lock, flags);
- return -ENODEV;
+ return BLK_STS_IOERR;
}
/*
@@ -2222,7 +2374,7 @@ int blk_insert_cloned_request(struct request_queue *q, struct request *rq)
__blk_run_queue(q);
spin_unlock_irqrestore(q->queue_lock, flags);
- return 0;
+ return BLK_STS_OK;
}
EXPORT_SYMBOL_GPL(blk_insert_cloned_request);
@@ -2238,9 +2390,6 @@ EXPORT_SYMBOL_GPL(blk_insert_cloned_request);
*
* Return:
* The number of bytes to fail.
- *
- * Context:
- * queue_lock must be held.
*/
unsigned int blk_rq_err_bytes(const struct request *rq)
{
@@ -2302,8 +2451,8 @@ void blk_account_io_done(struct request *req)
part_stat_inc(cpu, part, ios[rw]);
part_stat_add(cpu, part, ticks[rw], duration);
- part_round_stats(cpu, part);
- part_dec_in_flight(part, rw);
+ part_round_stats(req->q, cpu, part);
+ part_dec_in_flight(req->q, part, rw);
hd_struct_put(part);
part_stat_unlock();
@@ -2360,8 +2509,8 @@ void blk_account_io_start(struct request *rq, bool new_io)
part = &rq->rq_disk->part0;
hd_struct_get(part);
}
- part_round_stats(cpu, part);
- part_inc_in_flight(part, rw);
+ part_round_stats(rq->q, cpu, part);
+ part_inc_in_flight(rq->q, part, rw);
rq->part = part;
}
@@ -2380,15 +2529,15 @@ void blk_account_io_start(struct request *rq, bool new_io)
* Return:
* Pointer to the request at the top of @q if available. Null
* otherwise.
- *
- * Context:
- * queue_lock must be held.
*/
struct request *blk_peek_request(struct request_queue *q)
{
struct request *rq;
int ret;
+ lockdep_assert_held(q->queue_lock);
+ WARN_ON_ONCE(q->mq_ops);
+
while ((rq = __elv_next_request(q)) != NULL) {
rq = blk_pm_peek_request(q, rq);
@@ -2456,15 +2605,14 @@ struct request *blk_peek_request(struct request_queue *q)
rq = NULL;
break;
} else if (ret == BLKPREP_KILL || ret == BLKPREP_INVALID) {
- int err = (ret == BLKPREP_INVALID) ? -EREMOTEIO : -EIO;
-
rq->rq_flags |= RQF_QUIET;
/*
* Mark this request as started so we don't trigger
* any debug logic in the end I/O path.
*/
blk_start_request(rq);
- __blk_end_request_all(rq, err);
+ __blk_end_request_all(rq, ret == BLKPREP_INVALID ?
+ BLK_STS_TARGET : BLK_STS_IOERR);
} else {
printk(KERN_ERR "%s: bad return=%d\n", __func__, ret);
break;
@@ -2475,7 +2623,7 @@ struct request *blk_peek_request(struct request_queue *q)
}
EXPORT_SYMBOL(blk_peek_request);
-void blk_dequeue_request(struct request *rq)
+static void blk_dequeue_request(struct request *rq)
{
struct request_queue *q = rq->q;
@@ -2502,15 +2650,12 @@ void blk_dequeue_request(struct request *rq)
* Description:
* Dequeue @req and start timeout timer on it. This hands off the
* request to the driver.
- *
- * Block internal functions which don't want to start timer should
- * call blk_dequeue_request().
- *
- * Context:
- * queue_lock must be held.
*/
void blk_start_request(struct request *req)
{
+ lockdep_assert_held(req->q->queue_lock);
+ WARN_ON_ONCE(req->q->mq_ops);
+
blk_dequeue_request(req);
if (test_bit(QUEUE_FLAG_STATS, &req->q->queue_flags)) {
@@ -2535,14 +2680,14 @@ EXPORT_SYMBOL(blk_start_request);
* Return:
* Pointer to the request at the top of @q if available. Null
* otherwise.
- *
- * Context:
- * queue_lock must be held.
*/
struct request *blk_fetch_request(struct request_queue *q)
{
struct request *rq;
+ lockdep_assert_held(q->queue_lock);
+ WARN_ON_ONCE(q->mq_ops);
+
rq = blk_peek_request(q);
if (rq)
blk_start_request(rq);
@@ -2553,7 +2698,7 @@ EXPORT_SYMBOL(blk_fetch_request);
/**
* blk_update_request - Special helper function for request stacking drivers
* @req: the request being processed
- * @error: %0 for success, < %0 for error
+ * @error: block status code
* @nr_bytes: number of bytes to complete @req
*
* Description:
@@ -2572,49 +2717,19 @@ EXPORT_SYMBOL(blk_fetch_request);
* %false - this request doesn't have any more data
* %true - this request has more data
**/
-bool blk_update_request(struct request *req, int error, unsigned int nr_bytes)
+bool blk_update_request(struct request *req, blk_status_t error,
+ unsigned int nr_bytes)
{
int total_bytes;
- trace_block_rq_complete(req, error, nr_bytes);
+ trace_block_rq_complete(req, blk_status_to_errno(error), nr_bytes);
if (!req->bio)
return false;
- if (error && !blk_rq_is_passthrough(req) &&
- !(req->rq_flags & RQF_QUIET)) {
- char *error_type;
-
- switch (error) {
- case -ENOLINK:
- error_type = "recoverable transport";
- break;
- case -EREMOTEIO:
- error_type = "critical target";
- break;
- case -EBADE:
- error_type = "critical nexus";
- break;
- case -ETIMEDOUT:
- error_type = "timeout";
- break;
- case -ENOSPC:
- error_type = "critical space allocation";
- break;
- case -ENODATA:
- error_type = "critical medium";
- break;
- case -EIO:
- default:
- error_type = "I/O";
- break;
- }
- printk_ratelimited(KERN_ERR "%s: %s error, dev %s, sector %llu\n",
- __func__, error_type, req->rq_disk ?
- req->rq_disk->disk_name : "?",
- (unsigned long long)blk_rq_pos(req));
-
- }
+ if (unlikely(error && !blk_rq_is_passthrough(req) &&
+ !(req->rq_flags & RQF_QUIET)))
+ print_req_error(req, error);
blk_account_io_completion(req, nr_bytes);
@@ -2680,7 +2795,7 @@ bool blk_update_request(struct request *req, int error, unsigned int nr_bytes)
}
EXPORT_SYMBOL_GPL(blk_update_request);
-static bool blk_update_bidi_request(struct request *rq, int error,
+static bool blk_update_bidi_request(struct request *rq, blk_status_t error,
unsigned int nr_bytes,
unsigned int bidi_bytes)
{
@@ -2718,13 +2833,13 @@ void blk_unprep_request(struct request *req)
}
EXPORT_SYMBOL_GPL(blk_unprep_request);
-/*
- * queue lock must be held
- */
-void blk_finish_request(struct request *req, int error)
+void blk_finish_request(struct request *req, blk_status_t error)
{
struct request_queue *q = req->q;
+ lockdep_assert_held(req->q->queue_lock);
+ WARN_ON_ONCE(q->mq_ops);
+
if (req->rq_flags & RQF_STATS)
blk_stat_add(req);
@@ -2758,7 +2873,7 @@ EXPORT_SYMBOL(blk_finish_request);
/**
* blk_end_bidi_request - Complete a bidi request
* @rq: the request to complete
- * @error: %0 for success, < %0 for error
+ * @error: block status code
* @nr_bytes: number of bytes to complete @rq
* @bidi_bytes: number of bytes to complete @rq->next_rq
*
@@ -2772,12 +2887,14 @@ EXPORT_SYMBOL(blk_finish_request);
* %false - we are done with this request
* %true - still buffers pending for this request
**/
-static bool blk_end_bidi_request(struct request *rq, int error,
+static bool blk_end_bidi_request(struct request *rq, blk_status_t error,
unsigned int nr_bytes, unsigned int bidi_bytes)
{
struct request_queue *q = rq->q;
unsigned long flags;
+ WARN_ON_ONCE(q->mq_ops);
+
if (blk_update_bidi_request(rq, error, nr_bytes, bidi_bytes))
return true;
@@ -2791,7 +2908,7 @@ static bool blk_end_bidi_request(struct request *rq, int error,
/**
* __blk_end_bidi_request - Complete a bidi request with queue lock held
* @rq: the request to complete
- * @error: %0 for success, < %0 for error
+ * @error: block status code
* @nr_bytes: number of bytes to complete @rq
* @bidi_bytes: number of bytes to complete @rq->next_rq
*
@@ -2803,9 +2920,12 @@ static bool blk_end_bidi_request(struct request *rq, int error,
* %false - we are done with this request
* %true - still buffers pending for this request
**/
-static bool __blk_end_bidi_request(struct request *rq, int error,
+static bool __blk_end_bidi_request(struct request *rq, blk_status_t error,
unsigned int nr_bytes, unsigned int bidi_bytes)
{
+ lockdep_assert_held(rq->q->queue_lock);
+ WARN_ON_ONCE(rq->q->mq_ops);
+
if (blk_update_bidi_request(rq, error, nr_bytes, bidi_bytes))
return true;
@@ -2817,7 +2937,7 @@ static bool __blk_end_bidi_request(struct request *rq, int error,
/**
* blk_end_request - Helper function for drivers to complete the request.
* @rq: the request being processed
- * @error: %0 for success, < %0 for error
+ * @error: block status code
* @nr_bytes: number of bytes to complete
*
* Description:
@@ -2828,8 +2948,10 @@ static bool __blk_end_bidi_request(struct request *rq, int error,
* %false - we are done with this request
* %true - still buffers pending for this request
**/
-bool blk_end_request(struct request *rq, int error, unsigned int nr_bytes)
+bool blk_end_request(struct request *rq, blk_status_t error,
+ unsigned int nr_bytes)
{
+ WARN_ON_ONCE(rq->q->mq_ops);
return blk_end_bidi_request(rq, error, nr_bytes, 0);
}
EXPORT_SYMBOL(blk_end_request);
@@ -2837,12 +2959,12 @@ EXPORT_SYMBOL(blk_end_request);
/**
* blk_end_request_all - Helper function for drives to finish the request.
* @rq: the request to finish
- * @error: %0 for success, < %0 for error
+ * @error: block status code
*
* Description:
* Completely finish @rq.
*/
-void blk_end_request_all(struct request *rq, int error)
+void blk_end_request_all(struct request *rq, blk_status_t error)
{
bool pending;
unsigned int bidi_bytes = 0;
@@ -2858,7 +2980,7 @@ EXPORT_SYMBOL(blk_end_request_all);
/**
* __blk_end_request - Helper function for drivers to complete the request.
* @rq: the request being processed
- * @error: %0 for success, < %0 for error
+ * @error: block status code
* @nr_bytes: number of bytes to complete
*
* Description:
@@ -2868,8 +2990,12 @@ EXPORT_SYMBOL(blk_end_request_all);
* %false - we are done with this request
* %true - still buffers pending for this request
**/
-bool __blk_end_request(struct request *rq, int error, unsigned int nr_bytes)
+bool __blk_end_request(struct request *rq, blk_status_t error,
+ unsigned int nr_bytes)
{
+ lockdep_assert_held(rq->q->queue_lock);
+ WARN_ON_ONCE(rq->q->mq_ops);
+
return __blk_end_bidi_request(rq, error, nr_bytes, 0);
}
EXPORT_SYMBOL(__blk_end_request);
@@ -2877,16 +3003,19 @@ EXPORT_SYMBOL(__blk_end_request);
/**
* __blk_end_request_all - Helper function for drives to finish the request.
* @rq: the request to finish
- * @error: %0 for success, < %0 for error
+ * @error: block status code
*
* Description:
* Completely finish @rq. Must be called with queue lock held.
*/
-void __blk_end_request_all(struct request *rq, int error)
+void __blk_end_request_all(struct request *rq, blk_status_t error)
{
bool pending;
unsigned int bidi_bytes = 0;
+ lockdep_assert_held(rq->q->queue_lock);
+ WARN_ON_ONCE(rq->q->mq_ops);
+
if (unlikely(blk_bidi_rq(rq)))
bidi_bytes = blk_rq_bytes(rq->next_rq);
@@ -2898,7 +3027,7 @@ EXPORT_SYMBOL(__blk_end_request_all);
/**
* __blk_end_request_cur - Helper function to finish the current request chunk.
* @rq: the request to finish the current chunk for
- * @error: %0 for success, < %0 for error
+ * @error: block status code
*
* Description:
* Complete the current consecutively mapped chunk from @rq. Must
@@ -2908,7 +3037,7 @@ EXPORT_SYMBOL(__blk_end_request_all);
* %false - we are done with this request
* %true - still buffers pending for this request
*/
-bool __blk_end_request_cur(struct request *rq, int error)
+bool __blk_end_request_cur(struct request *rq, blk_status_t error)
{
return __blk_end_request(rq, error, blk_rq_cur_bytes(rq));
}
@@ -2923,8 +3052,8 @@ void blk_rq_bio_prep(struct request_queue *q, struct request *rq,
rq->__data_len = bio->bi_iter.bi_size;
rq->bio = rq->biotail = bio;
- if (bio->bi_bdev)
- rq->rq_disk = bio->bi_bdev->bd_disk;
+ if (bio->bi_disk)
+ rq->rq_disk = bio->bi_disk;
}
#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
@@ -3151,6 +3280,8 @@ static void queue_unplugged(struct request_queue *q, unsigned int depth,
bool from_schedule)
__releases(q->queue_lock)
{
+ lockdep_assert_held(q->queue_lock);
+
trace_block_unplug(q, depth, !from_schedule);
if (from_schedule)
@@ -3249,7 +3380,7 @@ void blk_flush_plug_list(struct blk_plug *plug, bool from_schedule)
* Short-circuit if @q is dead
*/
if (unlikely(blk_queue_dying(q))) {
- __blk_end_request_all(rq, -ENODEV);
+ __blk_end_request_all(rq, BLK_STS_IOERR);
continue;
}
@@ -3307,6 +3438,10 @@ EXPORT_SYMBOL(blk_finish_plug);
*/
void blk_pm_runtime_init(struct request_queue *q, struct device *dev)
{
+ /* not support for RQF_PM and ->rpm_status in blk-mq yet */
+ if (q->mq_ops)
+ return;
+
q->dev = dev;
q->rpm_status = RPM_ACTIVE;
pm_runtime_set_autosuspend_delay(q->dev, -1);
diff --git a/block/blk-exec.c b/block/blk-exec.c
index a9451e3b8587..5c0f3dc446dc 100644
--- a/block/blk-exec.c
+++ b/block/blk-exec.c
@@ -16,7 +16,7 @@
* @rq: request to complete
* @error: end I/O status of the request
*/
-static void blk_end_sync_rq(struct request *rq, int error)
+static void blk_end_sync_rq(struct request *rq, blk_status_t error)
{
struct completion *waiting = rq->end_io_data;
@@ -69,7 +69,7 @@ void blk_execute_rq_nowait(struct request_queue *q, struct gendisk *bd_disk,
if (unlikely(blk_queue_dying(q))) {
rq->rq_flags |= RQF_QUIET;
- __blk_end_request_all(rq, -ENXIO);
+ __blk_end_request_all(rq, BLK_STS_IOERR);
spin_unlock_irq(q->queue_lock);
return;
}
diff --git a/block/blk-flush.c b/block/blk-flush.c
index c4e0880b54bb..4938bec8cfef 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -1,12 +1,12 @@
/*
- * Functions to sequence FLUSH and FUA writes.
+ * Functions to sequence PREFLUSH and FUA writes.
*
* Copyright (C) 2011 Max Planck Institute for Gravitational Physics
* Copyright (C) 2011 Tejun Heo <tj@kernel.org>
*
* This file is released under the GPLv2.
*
- * REQ_{FLUSH|FUA} requests are decomposed to sequences consisted of three
+ * REQ_{PREFLUSH|FUA} requests are decomposed to sequences consisted of three
* optional steps - PREFLUSH, DATA and POSTFLUSH - according to the request
* properties and hardware capability.
*
@@ -16,9 +16,9 @@
* REQ_FUA means that the data must be on non-volatile media on request
* completion.
*
- * If the device doesn't have writeback cache, FLUSH and FUA don't make any
- * difference. The requests are either completed immediately if there's no
- * data or executed as normal requests otherwise.
+ * If the device doesn't have writeback cache, PREFLUSH and FUA don't make any
+ * difference. The requests are either completed immediately if there's no data
+ * or executed as normal requests otherwise.
*
* If the device has writeback cache and supports FUA, REQ_PREFLUSH is
* translated to PREFLUSH but REQ_FUA is passed down directly with DATA.
@@ -31,7 +31,7 @@
* fq->flush_queue[fq->flush_pending_idx]. Once certain criteria are met, a
* REQ_OP_FLUSH is issued and the pending_idx is toggled. When the flush
* completes, all the requests which were pending are proceeded to the next
- * step. This allows arbitrary merging of different types of FLUSH/FUA
+ * step. This allows arbitrary merging of different types of PREFLUSH/FUA
* requests.
*
* Currently, the following conditions are used to determine when to issue
@@ -47,19 +47,19 @@
* C3. The second condition is ignored if there is a request which has
* waited longer than FLUSH_PENDING_TIMEOUT. This is to avoid
* starvation in the unlikely case where there are continuous stream of
- * FUA (without FLUSH) requests.
+ * FUA (without PREFLUSH) requests.
*
* For devices which support FUA, it isn't clear whether C2 (and thus C3)
* is beneficial.
*
- * Note that a sequenced FLUSH/FUA request with DATA is completed twice.
+ * Note that a sequenced PREFLUSH/FUA request with DATA is completed twice.
* Once while executing DATA and again after the whole sequence is
* complete. The first completion updates the contained bio but doesn't
* finish it so that the bio submitter is notified only after the whole
* sequence is complete. This is implemented by testing RQF_FLUSH_SEQ in
* req_bio_endio().
*
- * The above peculiarity requires that each FLUSH/FUA request has only one
+ * The above peculiarity requires that each PREFLUSH/FUA request has only one
* bio attached to it, which is guaranteed as they aren't allowed to be
* merged in the usual way.
*/
@@ -76,7 +76,7 @@
#include "blk-mq-tag.h"
#include "blk-mq-sched.h"
-/* FLUSH/FUA sequences */
+/* PREFLUSH/FUA sequences */
enum {
REQ_FSEQ_PREFLUSH = (1 << 0), /* pre-flushing in progress */
REQ_FSEQ_DATA = (1 << 1), /* data write in progress */
@@ -148,7 +148,7 @@ static bool blk_flush_queue_rq(struct request *rq, bool add_front)
/**
* blk_flush_complete_seq - complete flush sequence
- * @rq: FLUSH/FUA request being sequenced
+ * @rq: PREFLUSH/FUA request being sequenced
* @fq: flush queue
* @seq: sequences to complete (mask of %REQ_FSEQ_*, can be zero)
* @error: whether an error occurred
@@ -164,7 +164,7 @@ static bool blk_flush_queue_rq(struct request *rq, bool add_front)
*/
static bool blk_flush_complete_seq(struct request *rq,
struct blk_flush_queue *fq,
- unsigned int seq, int error)
+ unsigned int seq, blk_status_t error)
{
struct request_queue *q = rq->q;
struct list_head *pending = &fq->flush_queue[fq->flush_pending_idx];
@@ -216,7 +216,7 @@ static bool blk_flush_complete_seq(struct request *rq,
return kicked | queued;
}
-static void flush_end_io(struct request *flush_rq, int error)
+static void flush_end_io(struct request *flush_rq, blk_status_t error)
{
struct request_queue *q = flush_rq->q;
struct list_head *running;
@@ -341,11 +341,13 @@ static bool blk_kick_flush(struct request_queue *q, struct blk_flush_queue *fq)
return blk_flush_queue_rq(flush_rq, false);
}
-static void flush_data_end_io(struct request *rq, int error)
+static void flush_data_end_io(struct request *rq, blk_status_t error)
{
struct request_queue *q = rq->q;
struct blk_flush_queue *fq = blk_get_flush_queue(q, NULL);
+ lockdep_assert_held(q->queue_lock);
+
/*
* Updating q->in_flight[] here for making this tag usable
* early. Because in blk_queue_start_tag(),
@@ -382,7 +384,7 @@ static void flush_data_end_io(struct request *rq, int error)
blk_run_queue_async(q);
}
-static void mq_flush_data_end_io(struct request *rq, int error)
+static void mq_flush_data_end_io(struct request *rq, blk_status_t error)
{
struct request_queue *q = rq->q;
struct blk_mq_hw_ctx *hctx;
@@ -404,16 +406,13 @@ static void mq_flush_data_end_io(struct request *rq, int error)
}
/**
- * blk_insert_flush - insert a new FLUSH/FUA request
+ * blk_insert_flush - insert a new PREFLUSH/FUA request
* @rq: request to insert
*
* To be called from __elv_add_request() for %ELEVATOR_INSERT_FLUSH insertions.
* or __blk_mq_run_hw_queue() to dispatch request.
* @rq is being submitted. Analyze what needs to be done and put it on the
* right queue.
- *
- * CONTEXT:
- * spin_lock_irq(q->queue_lock) in !mq case
*/
void blk_insert_flush(struct request *rq)
{
@@ -422,6 +421,9 @@ void blk_insert_flush(struct request *rq)
unsigned int policy = blk_flush_policy(fflags, rq);
struct blk_flush_queue *fq = blk_get_flush_queue(q, rq->mq_ctx);
+ if (!q->mq_ops)
+ lockdep_assert_held(q->queue_lock);
+
/*
* @policy now records what operations need to be done. Adjust
* REQ_PREFLUSH and FUA for the driver.
@@ -523,7 +525,7 @@ int blkdev_issue_flush(struct block_device *bdev, gfp_t gfp_mask,
return -ENXIO;
bio = bio_alloc(gfp_mask, 0);
- bio->bi_bdev = bdev;
+ bio_set_dev(bio, bdev);
bio->bi_opf = REQ_OP_WRITE | REQ_PREFLUSH;
ret = submit_bio_wait(bio);
diff --git a/block/blk-integrity.c b/block/blk-integrity.c
index 0f891a9aff4d..feb30570eaf5 100644
--- a/block/blk-integrity.c
+++ b/block/blk-integrity.c
@@ -384,9 +384,9 @@ static struct kobj_type integrity_ktype = {
.sysfs_ops = &integrity_ops,
};
-static int blk_integrity_nop_fn(struct blk_integrity_iter *iter)
+static blk_status_t blk_integrity_nop_fn(struct blk_integrity_iter *iter)
{
- return 0;
+ return BLK_STS_OK;
}
static const struct blk_integrity_profile nop_profile = {
diff --git a/block/blk-lib.c b/block/blk-lib.c
index e8caecd71688..62240f8832ca 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -77,7 +77,7 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
bio = next_bio(bio, 0, gfp_mask);
bio->bi_iter.bi_sector = sector;
- bio->bi_bdev = bdev;
+ bio_set_dev(bio, bdev);
bio_set_op_attrs(bio, op, 0);
bio->bi_iter.bi_size = req_sects << 9;
@@ -168,7 +168,7 @@ static int __blkdev_issue_write_same(struct block_device *bdev, sector_t sector,
while (nr_sects) {
bio = next_bio(bio, 1, gfp_mask);
bio->bi_iter.bi_sector = sector;
- bio->bi_bdev = bdev;
+ bio_set_dev(bio, bdev);
bio->bi_vcnt = 1;
bio->bi_io_vec->bv_page = page;
bio->bi_io_vec->bv_offset = 0;
@@ -241,7 +241,7 @@ static int __blkdev_issue_write_zeroes(struct block_device *bdev,
while (nr_sects) {
bio = next_bio(bio, 0, gfp_mask);
bio->bi_iter.bi_sector = sector;
- bio->bi_bdev = bdev;
+ bio_set_dev(bio, bdev);
bio->bi_opf = REQ_OP_WRITE_ZEROES;
if (flags & BLKDEV_ZERO_NOUNMAP)
bio->bi_opf |= REQ_NOUNMAP;
@@ -261,6 +261,19 @@ static int __blkdev_issue_write_zeroes(struct block_device *bdev,
return 0;
}
+/*
+ * Convert a number of 512B sectors to a number of pages.
+ * The result is limited to a number of pages that can fit into a BIO.
+ * Also make sure that the result is always at least 1 (page) for the cases
+ * where nr_sects is lower than the number of sectors in a page.
+ */
+static unsigned int __blkdev_sectors_to_bio_pages(sector_t nr_sects)
+{
+ sector_t pages = DIV_ROUND_UP_SECTOR_T(nr_sects, PAGE_SIZE / 512);
+
+ return min(pages, (sector_t)BIO_MAX_PAGES);
+}
+
/**
* __blkdev_issue_zeroout - generate number of zero filed write bios
* @bdev: blockdev to issue
@@ -307,18 +320,18 @@ int __blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
ret = 0;
while (nr_sects != 0) {
- bio = next_bio(bio, min(nr_sects, (sector_t)BIO_MAX_PAGES),
- gfp_mask);
+ bio = next_bio(bio, __blkdev_sectors_to_bio_pages(nr_sects),
+ gfp_mask);
bio->bi_iter.bi_sector = sector;
- bio->bi_bdev = bdev;
+ bio_set_dev(bio, bdev);
bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
while (nr_sects != 0) {
- sz = min((sector_t) PAGE_SIZE >> 9 , nr_sects);
- bi_size = bio_add_page(bio, ZERO_PAGE(0), sz << 9, 0);
+ sz = min((sector_t) PAGE_SIZE, nr_sects << 9);
+ bi_size = bio_add_page(bio, ZERO_PAGE(0), sz, 0);
nr_sects -= bi_size >> 9;
sector += bi_size >> 9;
- if (bi_size < (sz << 9))
+ if (bi_size < sz)
break;
}
cond_resched();
diff --git a/block/blk-map.c b/block/blk-map.c
index 3b5cb863318f..2547016aa7aa 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -16,6 +16,8 @@
*/
int blk_rq_append_bio(struct request *rq, struct bio *bio)
{
+ blk_queue_bounce(rq->q, &bio);
+
if (!rq->bio) {
blk_rq_bio_prep(rq->q, rq, bio);
} else {
@@ -72,15 +74,13 @@ static int __blk_rq_map_user_iov(struct request *rq,
map_data->offset += bio->bi_iter.bi_size;
orig_bio = bio;
- blk_queue_bounce(q, &bio);
/*
* We link the bounce buffer in and could have to traverse it
* later so we have to get a ref to prevent it from being freed
*/
- bio_get(bio);
-
ret = blk_rq_append_bio(rq, bio);
+ bio_get(bio);
if (ret) {
bio_endio(bio);
__blk_rq_unmap_user(orig_bio);
@@ -249,7 +249,6 @@ int blk_rq_map_kern(struct request_queue *q, struct request *rq, void *kbuf,
return ret;
}
- blk_queue_bounce(q, &rq->bio);
return 0;
}
EXPORT_SYMBOL(blk_rq_map_kern);
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 3990ae406341..aa524cad5bea 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -108,31 +108,9 @@ static struct bio *blk_bio_segment_split(struct request_queue *q,
bool do_split = true;
struct bio *new = NULL;
const unsigned max_sectors = get_max_io_size(q, bio);
- unsigned bvecs = 0;
bio_for_each_segment(bv, bio, iter) {
/*
- * With arbitrary bio size, the incoming bio may be very
- * big. We have to split the bio into small bios so that
- * each holds at most BIO_MAX_PAGES bvecs because
- * bio_clone() can fail to allocate big bvecs.
- *
- * It should have been better to apply the limit per
- * request queue in which bio_clone() is involved,
- * instead of globally. The biggest blocker is the
- * bio_clone() in bio bounce.
- *
- * If bio is splitted by this reason, we should have
- * allowed to continue bios merging, but don't do
- * that now for making the change simple.
- *
- * TODO: deal with bio bounce's bio_clone() gracefully
- * and convert the global limit into per-queue limit.
- */
- if (bvecs++ >= BIO_MAX_PAGES)
- goto split;
-
- /*
* If the queue doesn't support SG gaps and adding this
* offset would create a gap, disallow it.
*/
@@ -202,8 +180,7 @@ split:
return do_split ? new : NULL;
}
-void blk_queue_split(struct request_queue *q, struct bio **bio,
- struct bio_set *bs)
+void blk_queue_split(struct request_queue *q, struct bio **bio)
{
struct bio *split, *res;
unsigned nsegs;
@@ -211,13 +188,13 @@ void blk_queue_split(struct request_queue *q, struct bio **bio,
switch (bio_op(*bio)) {
case REQ_OP_DISCARD:
case REQ_OP_SECURE_ERASE:
- split = blk_bio_discard_split(q, *bio, bs, &nsegs);
+ split = blk_bio_discard_split(q, *bio, q->bio_split, &nsegs);
break;
case REQ_OP_WRITE_ZEROES:
- split = blk_bio_write_zeroes_split(q, *bio, bs, &nsegs);
+ split = blk_bio_write_zeroes_split(q, *bio, q->bio_split, &nsegs);
break;
case REQ_OP_WRITE_SAME:
- split = blk_bio_write_same_split(q, *bio, bs, &nsegs);
+ split = blk_bio_write_same_split(q, *bio, q->bio_split, &nsegs);
break;
default:
split = blk_bio_segment_split(q, *bio, q->bio_split, &nsegs);
@@ -656,8 +633,8 @@ static void blk_account_io_merge(struct request *req)
cpu = part_stat_lock();
part = req->part;
- part_round_stats(cpu, part);
- part_dec_in_flight(part, rq_data_dir(req));
+ part_round_stats(req->q, cpu, part);
+ part_dec_in_flight(req->q, part, rq_data_dir(req));
hd_struct_put(part);
part_stat_unlock();
@@ -671,6 +648,9 @@ static void blk_account_io_merge(struct request *req)
static struct request *attempt_merge(struct request_queue *q,
struct request *req, struct request *next)
{
+ if (!q->mq_ops)
+ lockdep_assert_held(q->queue_lock);
+
if (!rq_mergeable(req) || !rq_mergeable(next))
return NULL;
@@ -693,6 +673,13 @@ static struct request *attempt_merge(struct request_queue *q,
return NULL;
/*
+ * Don't allow merge of different write hints, or for a hint with
+ * non-hint IO.
+ */
+ if (req->write_hint != next->write_hint)
+ return NULL;
+
+ /*
* If we are allowed to merge, then append bio list
* from next to rq and release next. merge_requests_fn
* will have updated segment counts, update sector
@@ -799,7 +786,7 @@ bool blk_rq_merge_ok(struct request *rq, struct bio *bio)
return false;
/* must be same device and not a special request */
- if (rq->rq_disk != bio->bi_bdev->bd_disk || req_no_special_merge(rq))
+ if (rq->rq_disk != bio->bi_disk || req_no_special_merge(rq))
return false;
/* only merge integrity protected bio into ditto rq */
@@ -811,6 +798,13 @@ bool blk_rq_merge_ok(struct request *rq, struct bio *bio)
!blk_write_same_mergeable(rq->bio, bio))
return false;
+ /*
+ * Don't allow merge of different write hints, or for a hint with
+ * non-hint IO.
+ */
+ if (rq->write_hint != bio->bi_write_hint)
+ return false;
+
return true;
}
diff --git a/block/blk-mq-cpumap.c b/block/blk-mq-cpumap.c
index 8e61e8640e17..9f8cffc8a701 100644
--- a/block/blk-mq-cpumap.c
+++ b/block/blk-mq-cpumap.c
@@ -14,10 +14,14 @@
#include "blk.h"
#include "blk-mq.h"
-static int cpu_to_queue_index(unsigned int nr_cpus, unsigned int nr_queues,
- const int cpu)
+static int cpu_to_queue_index(unsigned int nr_queues, const int cpu)
{
- return cpu * nr_queues / nr_cpus;
+ /*
+ * Non present CPU will be mapped to queue index 0.
+ */
+ if (!cpu_present(cpu))
+ return 0;
+ return cpu % nr_queues;
}
static int get_first_sibling(unsigned int cpu)
@@ -35,56 +39,26 @@ int blk_mq_map_queues(struct blk_mq_tag_set *set)
{
unsigned int *map = set->mq_map;
unsigned int nr_queues = set->nr_hw_queues;
- const struct cpumask *online_mask = cpu_online_mask;
- unsigned int i, nr_cpus, nr_uniq_cpus, queue, first_sibling;
- cpumask_var_t cpus;
-
- if (!alloc_cpumask_var(&cpus, GFP_ATOMIC))
- return -ENOMEM;
-
- cpumask_clear(cpus);
- nr_cpus = nr_uniq_cpus = 0;
- for_each_cpu(i, online_mask) {
- nr_cpus++;
- first_sibling = get_first_sibling(i);
- if (!cpumask_test_cpu(first_sibling, cpus))
- nr_uniq_cpus++;
- cpumask_set_cpu(i, cpus);
- }
-
- queue = 0;
- for_each_possible_cpu(i) {
- if (!cpumask_test_cpu(i, online_mask)) {
- map[i] = 0;
- continue;
- }
+ unsigned int cpu, first_sibling;
+ for_each_possible_cpu(cpu) {
/*
- * Easy case - we have equal or more hardware queues. Or
- * there are no thread siblings to take into account. Do
- * 1:1 if enough, or sequential mapping if less.
+ * First do sequential mapping between CPUs and queues.
+ * In case we still have CPUs to map, and we have some number of
+ * threads per cores then map sibling threads to the same queue for
+ * performace optimizations.
*/
- if (nr_queues >= nr_cpus || nr_cpus == nr_uniq_cpus) {
- map[i] = cpu_to_queue_index(nr_cpus, nr_queues, queue);
- queue++;
- continue;
+ if (cpu < nr_queues) {
+ map[cpu] = cpu_to_queue_index(nr_queues, cpu);
+ } else {
+ first_sibling = get_first_sibling(cpu);
+ if (first_sibling == cpu)
+ map[cpu] = cpu_to_queue_index(nr_queues, cpu);
+ else
+ map[cpu] = map[first_sibling];
}
-
- /*
- * Less then nr_cpus queues, and we have some number of
- * threads per cores. Map sibling threads to the same
- * queue.
- */
- first_sibling = get_first_sibling(i);
- if (first_sibling == i) {
- map[i] = cpu_to_queue_index(nr_uniq_cpus, nr_queues,
- queue);
- queue++;
- } else
- map[i] = map[first_sibling];
}
- free_cpumask_var(cpus);
return 0;
}
EXPORT_SYMBOL_GPL(blk_mq_map_queues);
diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c
index 803aed4d7221..de294d775acf 100644
--- a/block/blk-mq-debugfs.c
+++ b/block/blk-mq-debugfs.c
@@ -48,8 +48,6 @@ static int blk_flags_show(struct seq_file *m, const unsigned long flags,
static const char *const blk_queue_flag_name[] = {
QUEUE_FLAG_NAME(QUEUED),
QUEUE_FLAG_NAME(STOPPED),
- QUEUE_FLAG_NAME(SYNCFULL),
- QUEUE_FLAG_NAME(ASYNCFULL),
QUEUE_FLAG_NAME(DYING),
QUEUE_FLAG_NAME(BYPASS),
QUEUE_FLAG_NAME(BIDI),
@@ -75,6 +73,8 @@ static const char *const blk_queue_flag_name[] = {
QUEUE_FLAG_NAME(STATS),
QUEUE_FLAG_NAME(POLL_STATS),
QUEUE_FLAG_NAME(REGISTERED),
+ QUEUE_FLAG_NAME(SCSI_PASSTHROUGH),
+ QUEUE_FLAG_NAME(QUIESCED),
};
#undef QUEUE_FLAG_NAME
@@ -114,10 +114,12 @@ static ssize_t queue_state_write(void *data, const char __user *buf,
blk_mq_run_hw_queues(q, true);
} else if (strcmp(op, "start") == 0) {
blk_mq_start_stopped_hw_queues(q, true);
+ } else if (strcmp(op, "kick") == 0) {
+ blk_mq_kick_requeue_list(q);
} else {
pr_err("%s: unsupported operation '%s'\n", __func__, op);
inval:
- pr_err("%s: use either 'run' or 'start'\n", __func__);
+ pr_err("%s: use 'run', 'start' or 'kick'\n", __func__);
return -EINVAL;
}
return count;
@@ -133,6 +135,29 @@ static void print_stat(struct seq_file *m, struct blk_rq_stat *stat)
}
}
+static int queue_write_hint_show(void *data, struct seq_file *m)
+{
+ struct request_queue *q = data;
+ int i;
+
+ for (i = 0; i < BLK_MAX_WRITE_HINTS; i++)
+ seq_printf(m, "hint%d: %llu\n", i, q->write_hints[i]);
+
+ return 0;
+}
+
+static ssize_t queue_write_hint_store(void *data, const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct request_queue *q = data;
+ int i;
+
+ for (i = 0; i < BLK_MAX_WRITE_HINTS; i++)
+ q->write_hints[i] = 0;
+
+ return count;
+}
+
static int queue_poll_stat_show(void *data, struct seq_file *m)
{
struct request_queue *q = data;
@@ -240,6 +265,7 @@ static const char *const cmd_flag_name[] = {
CMD_FLAG_NAME(RAHEAD),
CMD_FLAG_NAME(BACKGROUND),
CMD_FLAG_NAME(NOUNMAP),
+ CMD_FLAG_NAME(NOWAIT),
};
#undef CMD_FLAG_NAME
@@ -267,6 +293,14 @@ static const char *const rqf_name[] = {
};
#undef RQF_NAME
+#define RQAF_NAME(name) [REQ_ATOM_##name] = #name
+static const char *const rqaf_name[] = {
+ RQAF_NAME(COMPLETE),
+ RQAF_NAME(STARTED),
+ RQAF_NAME(POLL_SLEPT),
+};
+#undef RQAF_NAME
+
int __blk_mq_debugfs_rq_show(struct seq_file *m, struct request *rq)
{
const struct blk_mq_ops *const mq_ops = rq->q->mq_ops;
@@ -283,6 +317,8 @@ int __blk_mq_debugfs_rq_show(struct seq_file *m, struct request *rq)
seq_puts(m, ", .rq_flags=");
blk_flags_show(m, (__force unsigned int)rq->rq_flags, rqf_name,
ARRAY_SIZE(rqf_name));
+ seq_puts(m, ", .atomic_flags=");
+ blk_flags_show(m, rq->atomic_flags, rqaf_name, ARRAY_SIZE(rqaf_name));
seq_printf(m, ", .tag=%d, .internal_tag=%d", rq->tag,
rq->internal_tag);
if (mq_ops->show_rq)
@@ -298,6 +334,37 @@ int blk_mq_debugfs_rq_show(struct seq_file *m, void *v)
}
EXPORT_SYMBOL_GPL(blk_mq_debugfs_rq_show);
+static void *queue_requeue_list_start(struct seq_file *m, loff_t *pos)
+ __acquires(&q->requeue_lock)
+{
+ struct request_queue *q = m->private;
+
+ spin_lock_irq(&q->requeue_lock);
+ return seq_list_start(&q->requeue_list, *pos);
+}
+
+static void *queue_requeue_list_next(struct seq_file *m, void *v, loff_t *pos)
+{
+ struct request_queue *q = m->private;
+
+ return seq_list_next(v, &q->requeue_list, pos);
+}
+
+static void queue_requeue_list_stop(struct seq_file *m, void *v)
+ __releases(&q->requeue_lock)
+{
+ struct request_queue *q = m->private;
+
+ spin_unlock_irq(&q->requeue_lock);
+}
+
+static const struct seq_operations queue_requeue_list_seq_ops = {
+ .start = queue_requeue_list_start,
+ .next = queue_requeue_list_next,
+ .stop = queue_requeue_list_stop,
+ .show = blk_mq_debugfs_rq_show,
+};
+
static void *hctx_dispatch_start(struct seq_file *m, loff_t *pos)
__acquires(&hctx->lock)
{
@@ -329,6 +396,36 @@ static const struct seq_operations hctx_dispatch_seq_ops = {
.show = blk_mq_debugfs_rq_show,
};
+struct show_busy_params {
+ struct seq_file *m;
+ struct blk_mq_hw_ctx *hctx;
+};
+
+/*
+ * Note: the state of a request may change while this function is in progress,
+ * e.g. due to a concurrent blk_mq_finish_request() call.
+ */
+static void hctx_show_busy_rq(struct request *rq, void *data, bool reserved)
+{
+ const struct show_busy_params *params = data;
+
+ if (blk_mq_map_queue(rq->q, rq->mq_ctx->cpu) == params->hctx &&
+ test_bit(REQ_ATOM_STARTED, &rq->atomic_flags))
+ __blk_mq_debugfs_rq_show(params->m,
+ list_entry_rq(&rq->queuelist));
+}
+
+static int hctx_busy_show(void *data, struct seq_file *m)
+{
+ struct blk_mq_hw_ctx *hctx = data;
+ struct show_busy_params params = { .m = m, .hctx = hctx };
+
+ blk_mq_tagset_busy_iter(hctx->queue->tag_set, hctx_show_busy_rq,
+ &params);
+
+ return 0;
+}
+
static int hctx_ctx_map_show(void *data, struct seq_file *m)
{
struct blk_mq_hw_ctx *hctx = data;
@@ -645,7 +742,7 @@ static int blk_mq_debugfs_release(struct inode *inode, struct file *file)
return seq_release(inode, file);
}
-const struct file_operations blk_mq_debugfs_fops = {
+static const struct file_operations blk_mq_debugfs_fops = {
.open = blk_mq_debugfs_open,
.read = seq_read,
.write = blk_mq_debugfs_write,
@@ -655,7 +752,9 @@ const struct file_operations blk_mq_debugfs_fops = {
static const struct blk_mq_debugfs_attr blk_mq_debugfs_queue_attrs[] = {
{"poll_stat", 0400, queue_poll_stat_show},
+ {"requeue_list", 0400, .seq_ops = &queue_requeue_list_seq_ops},
{"state", 0600, queue_state_show, queue_state_write},
+ {"write_hints", 0600, queue_write_hint_show, queue_write_hint_store},
{},
};
@@ -663,6 +762,7 @@ static const struct blk_mq_debugfs_attr blk_mq_debugfs_hctx_attrs[] = {
{"state", 0400, hctx_state_show},
{"flags", 0400, hctx_flags_show},
{"dispatch", 0400, .seq_ops = &hctx_dispatch_seq_ops},
+ {"busy", 0400, hctx_busy_show},
{"ctx_map", 0400, hctx_ctx_map_show},
{"tags", 0400, hctx_tags_show},
{"tags_bitmap", 0400, hctx_tags_bitmap_show},
@@ -715,10 +815,14 @@ int blk_mq_debugfs_register(struct request_queue *q)
goto err;
/*
- * blk_mq_init_hctx() attempted to do this already, but q->debugfs_dir
+ * blk_mq_init_sched() attempted to do this already, but q->debugfs_dir
* didn't exist yet (because we don't know what to name the directory
* until the queue is registered to a gendisk).
*/
+ if (q->elevator && !q->sched_debugfs_dir)
+ blk_mq_debugfs_register_sched(q);
+
+ /* Similarly, blk_mq_init_hctx() couldn't do this previously. */
queue_for_each_hw_ctx(q, hctx, i) {
if (!hctx->debugfs_dir && blk_mq_debugfs_register_hctx(q, hctx))
goto err;
diff --git a/block/blk-mq-pci.c b/block/blk-mq-pci.c
index 0c3354cf3552..76944e3271bf 100644
--- a/block/blk-mq-pci.c
+++ b/block/blk-mq-pci.c
@@ -36,12 +36,18 @@ int blk_mq_pci_map_queues(struct blk_mq_tag_set *set, struct pci_dev *pdev)
for (queue = 0; queue < set->nr_hw_queues; queue++) {
mask = pci_irq_get_affinity(pdev, queue);
if (!mask)
- return -EINVAL;
+ goto fallback;
for_each_cpu(cpu, mask)
set->mq_map[cpu] = queue;
}
return 0;
+
+fallback:
+ WARN_ON_ONCE(set->nr_hw_queues > 1);
+ for_each_possible_cpu(cpu)
+ set->mq_map[cpu] = 0;
+ return 0;
}
EXPORT_SYMBOL_GPL(blk_mq_pci_map_queues);
diff --git a/block/blk-mq-rdma.c b/block/blk-mq-rdma.c
new file mode 100644
index 000000000000..996167f1de18
--- /dev/null
+++ b/block/blk-mq-rdma.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2017 Sagi Grimberg.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ */
+#include <linux/blk-mq.h>
+#include <linux/blk-mq-rdma.h>
+#include <rdma/ib_verbs.h>
+
+/**
+ * blk_mq_rdma_map_queues - provide a default queue mapping for rdma device
+ * @set: tagset to provide the mapping for
+ * @dev: rdma device associated with @set.
+ * @first_vec: first interrupt vectors to use for queues (usually 0)
+ *
+ * This function assumes the rdma device @dev has at least as many available
+ * interrupt vetors as @set has queues. It will then query it's affinity mask
+ * and built queue mapping that maps a queue to the CPUs that have irq affinity
+ * for the corresponding vector.
+ *
+ * In case either the driver passed a @dev with less vectors than
+ * @set->nr_hw_queues, or @dev does not provide an affinity mask for a
+ * vector, we fallback to the naive mapping.
+ */
+int blk_mq_rdma_map_queues(struct blk_mq_tag_set *set,
+ struct ib_device *dev, int first_vec)
+{
+ const struct cpumask *mask;
+ unsigned int queue, cpu;
+
+ for (queue = 0; queue < set->nr_hw_queues; queue++) {
+ mask = ib_get_vector_affinity(dev, first_vec + queue);
+ if (!mask)
+ goto fallback;
+
+ for_each_cpu(cpu, mask)
+ set->mq_map[cpu] = queue;
+ }
+
+ return 0;
+
+fallback:
+ return blk_mq_map_queues(set);
+}
+EXPORT_SYMBOL_GPL(blk_mq_rdma_map_queues);
diff --git a/block/blk-mq-sched.c b/block/blk-mq-sched.c
index 0ded5e846335..4ab69435708c 100644
--- a/block/blk-mq-sched.c
+++ b/block/blk-mq-sched.c
@@ -31,11 +31,10 @@ void blk_mq_sched_free_hctx_data(struct request_queue *q,
}
EXPORT_SYMBOL_GPL(blk_mq_sched_free_hctx_data);
-static void __blk_mq_sched_assign_ioc(struct request_queue *q,
- struct request *rq,
- struct bio *bio,
- struct io_context *ioc)
+void blk_mq_sched_assign_ioc(struct request *rq, struct bio *bio)
{
+ struct request_queue *q = rq->q;
+ struct io_context *ioc = rq_ioc(bio);
struct io_cq *icq;
spin_lock_irq(q->queue_lock);
@@ -47,25 +46,8 @@ static void __blk_mq_sched_assign_ioc(struct request_queue *q,
if (!icq)
return;
}
-
+ get_io_context(icq->ioc);
rq->elv.icq = icq;
- if (!blk_mq_sched_get_rq_priv(q, rq, bio)) {
- rq->rq_flags |= RQF_ELVPRIV;
- get_io_context(icq->ioc);
- return;
- }
-
- rq->elv.icq = NULL;
-}
-
-static void blk_mq_sched_assign_ioc(struct request_queue *q,
- struct request *rq, struct bio *bio)
-{
- struct io_context *ioc;
-
- ioc = rq_ioc(bio);
- if (ioc)
- __blk_mq_sched_assign_ioc(q, rq, bio, ioc);
}
/*
@@ -107,71 +89,6 @@ static bool blk_mq_sched_restart_hctx(struct blk_mq_hw_ctx *hctx)
return false;
}
-struct request *blk_mq_sched_get_request(struct request_queue *q,
- struct bio *bio,
- unsigned int op,
- struct blk_mq_alloc_data *data)
-{
- struct elevator_queue *e = q->elevator;
- struct request *rq;
-
- blk_queue_enter_live(q);
- data->q = q;
- if (likely(!data->ctx))
- data->ctx = blk_mq_get_ctx(q);
- if (likely(!data->hctx))
- data->hctx = blk_mq_map_queue(q, data->ctx->cpu);
-
- if (e) {
- data->flags |= BLK_MQ_REQ_INTERNAL;
-
- /*
- * Flush requests are special and go directly to the
- * dispatch list.
- */
- if (!op_is_flush(op) && e->type->ops.mq.get_request) {
- rq = e->type->ops.mq.get_request(q, op, data);
- if (rq)
- rq->rq_flags |= RQF_QUEUED;
- } else
- rq = __blk_mq_alloc_request(data, op);
- } else {
- rq = __blk_mq_alloc_request(data, op);
- }
-
- if (rq) {
- if (!op_is_flush(op)) {
- rq->elv.icq = NULL;
- if (e && e->type->icq_cache)
- blk_mq_sched_assign_ioc(q, rq, bio);
- }
- data->hctx->queued++;
- return rq;
- }
-
- blk_queue_exit(q);
- return NULL;
-}
-
-void blk_mq_sched_put_request(struct request *rq)
-{
- struct request_queue *q = rq->q;
- struct elevator_queue *e = q->elevator;
-
- if (rq->rq_flags & RQF_ELVPRIV) {
- blk_mq_sched_put_rq_priv(rq->q, rq);
- if (rq->elv.icq) {
- put_io_context(rq->elv.icq->ioc);
- rq->elv.icq = NULL;
- }
- }
-
- if ((rq->rq_flags & RQF_QUEUED) && e && e->type->ops.mq.put_request)
- e->type->ops.mq.put_request(rq);
- else
- blk_mq_finish_request(rq);
-}
-
void blk_mq_sched_dispatch_requests(struct blk_mq_hw_ctx *hctx)
{
struct request_queue *q = hctx->queue;
@@ -180,7 +97,8 @@ void blk_mq_sched_dispatch_requests(struct blk_mq_hw_ctx *hctx)
bool did_work = false;
LIST_HEAD(rq_list);
- if (unlikely(blk_mq_hctx_stopped(hctx)))
+ /* RCU or SRCU read lock is needed before checking quiesced flag */
+ if (unlikely(blk_mq_hctx_stopped(hctx) || blk_queue_quiesced(q)))
return;
hctx->run++;
@@ -260,19 +178,73 @@ bool blk_mq_sched_try_merge(struct request_queue *q, struct bio *bio,
}
EXPORT_SYMBOL_GPL(blk_mq_sched_try_merge);
+/*
+ * Reverse check our software queue for entries that we could potentially
+ * merge with. Currently includes a hand-wavy stop count of 8, to not spend
+ * too much time checking for merges.
+ */
+static bool blk_mq_attempt_merge(struct request_queue *q,
+ struct blk_mq_ctx *ctx, struct bio *bio)
+{
+ struct request *rq;
+ int checked = 8;
+
+ lockdep_assert_held(&ctx->lock);
+
+ list_for_each_entry_reverse(rq, &ctx->rq_list, queuelist) {
+ bool merged = false;
+
+ if (!checked--)
+ break;
+
+ if (!blk_rq_merge_ok(rq, bio))
+ continue;
+
+ switch (blk_try_merge(rq, bio)) {
+ case ELEVATOR_BACK_MERGE:
+ if (blk_mq_sched_allow_merge(q, rq, bio))
+ merged = bio_attempt_back_merge(q, rq, bio);
+ break;
+ case ELEVATOR_FRONT_MERGE:
+ if (blk_mq_sched_allow_merge(q, rq, bio))
+ merged = bio_attempt_front_merge(q, rq, bio);
+ break;
+ case ELEVATOR_DISCARD_MERGE:
+ merged = bio_attempt_discard_merge(q, rq, bio);
+ break;
+ default:
+ continue;
+ }
+
+ if (merged)
+ ctx->rq_merged++;
+ return merged;
+ }
+
+ return false;
+}
+
bool __blk_mq_sched_bio_merge(struct request_queue *q, struct bio *bio)
{
struct elevator_queue *e = q->elevator;
+ struct blk_mq_ctx *ctx = blk_mq_get_ctx(q);
+ struct blk_mq_hw_ctx *hctx = blk_mq_map_queue(q, ctx->cpu);
+ bool ret = false;
- if (e->type->ops.mq.bio_merge) {
- struct blk_mq_ctx *ctx = blk_mq_get_ctx(q);
- struct blk_mq_hw_ctx *hctx = blk_mq_map_queue(q, ctx->cpu);
-
+ if (e && e->type->ops.mq.bio_merge) {
blk_mq_put_ctx(ctx);
return e->type->ops.mq.bio_merge(hctx, bio);
}
- return false;
+ if (hctx->flags & BLK_MQ_F_SHOULD_MERGE) {
+ /* default per sw-queue merge */
+ spin_lock(&ctx->lock);
+ ret = blk_mq_attempt_merge(q, ctx, bio);
+ spin_unlock(&ctx->lock);
+ }
+
+ blk_mq_put_ctx(ctx);
+ return ret;
}
bool blk_mq_sched_try_insert_merge(struct request_queue *q, struct request *rq)
@@ -543,10 +515,12 @@ int blk_mq_init_sched(struct request_queue *q, struct elevator_type *e)
}
/*
- * Default to 256, since we don't split into sync/async like the
- * old code did. Additionally, this is a per-hw queue depth.
+ * Default to double of smaller one between hw queue_depth and 128,
+ * since we don't split into sync/async like the old code did.
+ * Additionally, this is a per-hw queue depth.
*/
- q->nr_requests = 2 * BLKDEV_MAX_RQ;
+ q->nr_requests = 2 * min_t(unsigned int, q->tag_set->queue_depth,
+ BLKDEV_MAX_RQ);
queue_for_each_hw_ctx(q, hctx, i) {
ret = blk_mq_sched_alloc_tags(q, hctx, i);
diff --git a/block/blk-mq-sched.h b/block/blk-mq-sched.h
index 5007edece51a..9267d0b7c197 100644
--- a/block/blk-mq-sched.h
+++ b/block/blk-mq-sched.h
@@ -7,8 +7,7 @@
void blk_mq_sched_free_hctx_data(struct request_queue *q,
void (*exit)(struct blk_mq_hw_ctx *));
-struct request *blk_mq_sched_get_request(struct request_queue *q, struct bio *bio, unsigned int op, struct blk_mq_alloc_data *data);
-void blk_mq_sched_put_request(struct request *rq);
+void blk_mq_sched_assign_ioc(struct request *rq, struct bio *bio);
void blk_mq_sched_request_inserted(struct request *rq);
bool blk_mq_sched_try_merge(struct request_queue *q, struct bio *bio,
@@ -38,35 +37,12 @@ int blk_mq_sched_init(struct request_queue *q);
static inline bool
blk_mq_sched_bio_merge(struct request_queue *q, struct bio *bio)
{
- struct elevator_queue *e = q->elevator;
-
- if (!e || blk_queue_nomerges(q) || !bio_mergeable(bio))
+ if (blk_queue_nomerges(q) || !bio_mergeable(bio))
return false;
return __blk_mq_sched_bio_merge(q, bio);
}
-static inline int blk_mq_sched_get_rq_priv(struct request_queue *q,
- struct request *rq,
- struct bio *bio)
-{
- struct elevator_queue *e = q->elevator;
-
- if (e && e->type->ops.mq.get_rq_priv)
- return e->type->ops.mq.get_rq_priv(q, rq, bio);
-
- return 0;
-}
-
-static inline void blk_mq_sched_put_rq_priv(struct request_queue *q,
- struct request *rq)
-{
- struct elevator_queue *e = q->elevator;
-
- if (e && e->type->ops.mq.put_rq_priv)
- e->type->ops.mq.put_rq_priv(q, rq);
-}
-
static inline bool
blk_mq_sched_allow_merge(struct request_queue *q, struct request *rq,
struct bio *bio)
diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c
index d0be72ccb091..6714507aa6c7 100644
--- a/block/blk-mq-tag.c
+++ b/block/blk-mq-tag.c
@@ -214,7 +214,11 @@ static bool bt_iter(struct sbitmap *bitmap, unsigned int bitnr, void *data)
bitnr += tags->nr_reserved_tags;
rq = tags->rqs[bitnr];
- if (rq->q == hctx->queue)
+ /*
+ * We can hit rq == NULL here, because the tagging functions
+ * test and set the bit before assining ->rqs[].
+ */
+ if (rq && rq->q == hctx->queue)
iter_data->fn(hctx, rq, iter_data->data, reserved);
return true;
}
@@ -248,9 +252,15 @@ static bool bt_tags_iter(struct sbitmap *bitmap, unsigned int bitnr, void *data)
if (!reserved)
bitnr += tags->nr_reserved_tags;
+
+ /*
+ * We can hit rq == NULL here, because the tagging functions
+ * test and set the bit before assining ->rqs[].
+ */
rq = tags->rqs[bitnr];
+ if (rq)
+ iter_data->fn(rq, iter_data->data, reserved);
- iter_data->fn(rq, iter_data->data, reserved);
return true;
}
@@ -288,11 +298,12 @@ void blk_mq_tagset_busy_iter(struct blk_mq_tag_set *tagset,
}
EXPORT_SYMBOL(blk_mq_tagset_busy_iter);
-int blk_mq_reinit_tagset(struct blk_mq_tag_set *set)
+int blk_mq_reinit_tagset(struct blk_mq_tag_set *set,
+ int (reinit_request)(void *, struct request *))
{
int i, j, ret = 0;
- if (!set->ops->reinit_request)
+ if (WARN_ON_ONCE(!reinit_request))
goto out;
for (i = 0; i < set->nr_hw_queues; i++) {
@@ -305,8 +316,8 @@ int blk_mq_reinit_tagset(struct blk_mq_tag_set *set)
if (!tags->static_rqs[j])
continue;
- ret = set->ops->reinit_request(set->driver_data,
- tags->static_rqs[j]);
+ ret = reinit_request(set->driver_data,
+ tags->static_rqs[j]);
if (ret)
goto out;
}
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 958cedaff8b8..98a18609755e 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -37,12 +37,8 @@
#include "blk-wbt.h"
#include "blk-mq-sched.h"
-static DEFINE_MUTEX(all_q_mutex);
-static LIST_HEAD(all_q_list);
-
static void blk_mq_poll_stats_start(struct request_queue *q);
static void blk_mq_poll_stats_fn(struct blk_stat_callback *cb);
-static void __blk_mq_stop_hw_queues(struct request_queue *q, bool sync);
static int blk_mq_poll_stats_bkt(const struct request *rq)
{
@@ -87,6 +83,41 @@ static void blk_mq_hctx_clear_pending(struct blk_mq_hw_ctx *hctx,
sbitmap_clear_bit(&hctx->ctx_map, ctx->index_hw);
}
+struct mq_inflight {
+ struct hd_struct *part;
+ unsigned int *inflight;
+};
+
+static void blk_mq_check_inflight(struct blk_mq_hw_ctx *hctx,
+ struct request *rq, void *priv,
+ bool reserved)
+{
+ struct mq_inflight *mi = priv;
+
+ if (test_bit(REQ_ATOM_STARTED, &rq->atomic_flags) &&
+ !test_bit(REQ_ATOM_COMPLETE, &rq->atomic_flags)) {
+ /*
+ * index[0] counts the specific partition that was asked
+ * for. index[1] counts the ones that are active on the
+ * whole device, so increment that if mi->part is indeed
+ * a partition, and not a whole device.
+ */
+ if (rq->part == mi->part)
+ mi->inflight[0]++;
+ if (mi->part->partno)
+ mi->inflight[1]++;
+ }
+}
+
+void blk_mq_in_flight(struct request_queue *q, struct hd_struct *part,
+ unsigned int inflight[2])
+{
+ struct mq_inflight mi = { .part = part, .inflight = inflight, };
+
+ inflight[0] = inflight[1] = 0;
+ blk_mq_queue_tag_busy_iter(q, blk_mq_check_inflight, &mi);
+}
+
void blk_freeze_queue_start(struct request_queue *q)
{
int freeze_depth;
@@ -154,13 +185,28 @@ void blk_mq_unfreeze_queue(struct request_queue *q)
}
EXPORT_SYMBOL_GPL(blk_mq_unfreeze_queue);
+/*
+ * FIXME: replace the scsi_internal_device_*block_nowait() calls in the
+ * mpt3sas driver such that this function can be removed.
+ */
+void blk_mq_quiesce_queue_nowait(struct request_queue *q)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(q->queue_lock, flags);
+ queue_flag_set(QUEUE_FLAG_QUIESCED, q);
+ spin_unlock_irqrestore(q->queue_lock, flags);
+}
+EXPORT_SYMBOL_GPL(blk_mq_quiesce_queue_nowait);
+
/**
- * blk_mq_quiesce_queue() - wait until all ongoing queue_rq calls have finished
+ * blk_mq_quiesce_queue() - wait until all ongoing dispatches have finished
* @q: request queue.
*
* Note: this function does not prevent that the struct request end_io()
- * callback function is invoked. Additionally, it is not prevented that
- * new queue_rq() calls occur unless the queue has been stopped first.
+ * callback function is invoked. Once this function is returned, we make
+ * sure no dispatch can happen until the queue is unquiesced via
+ * blk_mq_unquiesce_queue().
*/
void blk_mq_quiesce_queue(struct request_queue *q)
{
@@ -168,11 +214,11 @@ void blk_mq_quiesce_queue(struct request_queue *q)
unsigned int i;
bool rcu = false;
- __blk_mq_stop_hw_queues(q, true);
+ blk_mq_quiesce_queue_nowait(q);
queue_for_each_hw_ctx(q, hctx, i) {
if (hctx->flags & BLK_MQ_F_BLOCKING)
- synchronize_srcu(&hctx->queue_rq_srcu);
+ synchronize_srcu(hctx->queue_rq_srcu);
else
rcu = true;
}
@@ -181,6 +227,26 @@ void blk_mq_quiesce_queue(struct request_queue *q)
}
EXPORT_SYMBOL_GPL(blk_mq_quiesce_queue);
+/*
+ * blk_mq_unquiesce_queue() - counterpart of blk_mq_quiesce_queue()
+ * @q: request queue.
+ *
+ * This function recovers queue into the state before quiescing
+ * which is done by blk_mq_quiesce_queue.
+ */
+void blk_mq_unquiesce_queue(struct request_queue *q)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(q->queue_lock, flags);
+ queue_flag_clear(QUEUE_FLAG_QUIESCED, q);
+ spin_unlock_irqrestore(q->queue_lock, flags);
+
+ /* dispatch requests which are inserted during quiescing */
+ blk_mq_run_hw_queues(q, true);
+}
+EXPORT_SYMBOL_GPL(blk_mq_unquiesce_queue);
+
void blk_mq_wake_waiters(struct request_queue *q)
{
struct blk_mq_hw_ctx *hctx;
@@ -204,15 +270,33 @@ bool blk_mq_can_queue(struct blk_mq_hw_ctx *hctx)
}
EXPORT_SYMBOL(blk_mq_can_queue);
-void blk_mq_rq_ctx_init(struct request_queue *q, struct blk_mq_ctx *ctx,
- struct request *rq, unsigned int op)
+static struct request *blk_mq_rq_ctx_init(struct blk_mq_alloc_data *data,
+ unsigned int tag, unsigned int op)
{
+ struct blk_mq_tags *tags = blk_mq_tags_from_data(data);
+ struct request *rq = tags->static_rqs[tag];
+
+ rq->rq_flags = 0;
+
+ if (data->flags & BLK_MQ_REQ_INTERNAL) {
+ rq->tag = -1;
+ rq->internal_tag = tag;
+ } else {
+ if (blk_mq_tag_busy(data->hctx)) {
+ rq->rq_flags = RQF_MQ_INFLIGHT;
+ atomic_inc(&data->hctx->nr_active);
+ }
+ rq->tag = tag;
+ rq->internal_tag = -1;
+ data->hctx->tags->rqs[rq->tag] = rq;
+ }
+
INIT_LIST_HEAD(&rq->queuelist);
/* csd/requeue_work/fifo_time is initialized before use */
- rq->q = q;
- rq->mq_ctx = ctx;
+ rq->q = data->q;
+ rq->mq_ctx = data->ctx;
rq->cmd_flags = op;
- if (blk_queue_io_stat(q))
+ if (blk_queue_io_stat(data->q))
rq->rq_flags |= RQF_IO_STAT;
/* do not touch atomic flags, it needs atomic ops against the timer */
rq->cpu = -1;
@@ -241,44 +325,65 @@ void blk_mq_rq_ctx_init(struct request_queue *q, struct blk_mq_ctx *ctx,
rq->end_io_data = NULL;
rq->next_rq = NULL;
- ctx->rq_dispatched[op_is_sync(op)]++;
+ data->ctx->rq_dispatched[op_is_sync(op)]++;
+ return rq;
}
-EXPORT_SYMBOL_GPL(blk_mq_rq_ctx_init);
-struct request *__blk_mq_alloc_request(struct blk_mq_alloc_data *data,
- unsigned int op)
+static struct request *blk_mq_get_request(struct request_queue *q,
+ struct bio *bio, unsigned int op,
+ struct blk_mq_alloc_data *data)
{
+ struct elevator_queue *e = q->elevator;
struct request *rq;
unsigned int tag;
+ struct blk_mq_ctx *local_ctx = NULL;
- tag = blk_mq_get_tag(data);
- if (tag != BLK_MQ_TAG_FAIL) {
- struct blk_mq_tags *tags = blk_mq_tags_from_data(data);
+ blk_queue_enter_live(q);
+ data->q = q;
+ if (likely(!data->ctx))
+ data->ctx = local_ctx = blk_mq_get_ctx(q);
+ if (likely(!data->hctx))
+ data->hctx = blk_mq_map_queue(q, data->ctx->cpu);
+ if (op & REQ_NOWAIT)
+ data->flags |= BLK_MQ_REQ_NOWAIT;
- rq = tags->static_rqs[tag];
+ if (e) {
+ data->flags |= BLK_MQ_REQ_INTERNAL;
- if (data->flags & BLK_MQ_REQ_INTERNAL) {
- rq->tag = -1;
- rq->internal_tag = tag;
- } else {
- if (blk_mq_tag_busy(data->hctx)) {
- rq->rq_flags = RQF_MQ_INFLIGHT;
- atomic_inc(&data->hctx->nr_active);
- }
- rq->tag = tag;
- rq->internal_tag = -1;
- data->hctx->tags->rqs[rq->tag] = rq;
- }
+ /*
+ * Flush requests are special and go directly to the
+ * dispatch list.
+ */
+ if (!op_is_flush(op) && e->type->ops.mq.limit_depth)
+ e->type->ops.mq.limit_depth(op, data);
+ }
- blk_mq_rq_ctx_init(data->q, data->ctx, rq, op);
- return rq;
+ tag = blk_mq_get_tag(data);
+ if (tag == BLK_MQ_TAG_FAIL) {
+ if (local_ctx) {
+ blk_mq_put_ctx(local_ctx);
+ data->ctx = NULL;
+ }
+ blk_queue_exit(q);
+ return NULL;
}
- return NULL;
+ rq = blk_mq_rq_ctx_init(data, tag, op);
+ if (!op_is_flush(op)) {
+ rq->elv.icq = NULL;
+ if (e && e->type->ops.mq.prepare_request) {
+ if (e->type->icq_cache && rq_ioc(bio))
+ blk_mq_sched_assign_ioc(rq, bio);
+
+ e->type->ops.mq.prepare_request(rq, bio);
+ rq->rq_flags |= RQF_ELVPRIV;
+ }
+ }
+ data->hctx->queued++;
+ return rq;
}
-EXPORT_SYMBOL_GPL(__blk_mq_alloc_request);
-struct request *blk_mq_alloc_request(struct request_queue *q, int rw,
+struct request *blk_mq_alloc_request(struct request_queue *q, unsigned int op,
unsigned int flags)
{
struct blk_mq_alloc_data alloc_data = { .flags = flags };
@@ -289,14 +394,14 @@ struct request *blk_mq_alloc_request(struct request_queue *q, int rw,
if (ret)
return ERR_PTR(ret);
- rq = blk_mq_sched_get_request(q, NULL, rw, &alloc_data);
-
- blk_mq_put_ctx(alloc_data.ctx);
+ rq = blk_mq_get_request(q, NULL, op, &alloc_data);
blk_queue_exit(q);
if (!rq)
return ERR_PTR(-EWOULDBLOCK);
+ blk_mq_put_ctx(alloc_data.ctx);
+
rq->__data_len = 0;
rq->__sector = (sector_t) -1;
rq->bio = rq->biotail = NULL;
@@ -304,8 +409,8 @@ struct request *blk_mq_alloc_request(struct request_queue *q, int rw,
}
EXPORT_SYMBOL(blk_mq_alloc_request);
-struct request *blk_mq_alloc_request_hctx(struct request_queue *q, int rw,
- unsigned int flags, unsigned int hctx_idx)
+struct request *blk_mq_alloc_request_hctx(struct request_queue *q,
+ unsigned int op, unsigned int flags, unsigned int hctx_idx)
{
struct blk_mq_alloc_data alloc_data = { .flags = flags };
struct request *rq;
@@ -340,8 +445,7 @@ struct request *blk_mq_alloc_request_hctx(struct request_queue *q, int rw,
cpu = cpumask_first(alloc_data.hctx->cpumask);
alloc_data.ctx = __blk_mq_get_ctx(q, cpu);
- rq = blk_mq_sched_get_request(q, NULL, rw, &alloc_data);
-
+ rq = blk_mq_get_request(q, NULL, op, &alloc_data);
blk_queue_exit(q);
if (!rq)
@@ -351,17 +455,28 @@ struct request *blk_mq_alloc_request_hctx(struct request_queue *q, int rw,
}
EXPORT_SYMBOL_GPL(blk_mq_alloc_request_hctx);
-void __blk_mq_finish_request(struct blk_mq_hw_ctx *hctx, struct blk_mq_ctx *ctx,
- struct request *rq)
+void blk_mq_free_request(struct request *rq)
{
- const int sched_tag = rq->internal_tag;
struct request_queue *q = rq->q;
+ struct elevator_queue *e = q->elevator;
+ struct blk_mq_ctx *ctx = rq->mq_ctx;
+ struct blk_mq_hw_ctx *hctx = blk_mq_map_queue(q, ctx->cpu);
+ const int sched_tag = rq->internal_tag;
+
+ if (rq->rq_flags & RQF_ELVPRIV) {
+ if (e && e->type->ops.mq.finish_request)
+ e->type->ops.mq.finish_request(rq);
+ if (rq->elv.icq) {
+ put_io_context(rq->elv.icq->ioc);
+ rq->elv.icq = NULL;
+ }
+ }
+ ctx->rq_completed[rq_is_sync(rq)]++;
if (rq->rq_flags & RQF_MQ_INFLIGHT)
atomic_dec(&hctx->nr_active);
wbt_done(q->rq_wb, &rq->issue_stat);
- rq->rq_flags = 0;
clear_bit(REQ_ATOM_STARTED, &rq->atomic_flags);
clear_bit(REQ_ATOM_POLL_SLEPT, &rq->atomic_flags);
@@ -372,29 +487,9 @@ void __blk_mq_finish_request(struct blk_mq_hw_ctx *hctx, struct blk_mq_ctx *ctx,
blk_mq_sched_restart(hctx);
blk_queue_exit(q);
}
-
-static void blk_mq_finish_hctx_request(struct blk_mq_hw_ctx *hctx,
- struct request *rq)
-{
- struct blk_mq_ctx *ctx = rq->mq_ctx;
-
- ctx->rq_completed[rq_is_sync(rq)]++;
- __blk_mq_finish_request(hctx, ctx, rq);
-}
-
-void blk_mq_finish_request(struct request *rq)
-{
- blk_mq_finish_hctx_request(blk_mq_map_queue(rq->q, rq->mq_ctx->cpu), rq);
-}
-EXPORT_SYMBOL_GPL(blk_mq_finish_request);
-
-void blk_mq_free_request(struct request *rq)
-{
- blk_mq_sched_put_request(rq);
-}
EXPORT_SYMBOL_GPL(blk_mq_free_request);
-inline void __blk_mq_end_request(struct request *rq, int error)
+inline void __blk_mq_end_request(struct request *rq, blk_status_t error)
{
blk_account_io_done(rq);
@@ -409,7 +504,7 @@ inline void __blk_mq_end_request(struct request *rq, int error)
}
EXPORT_SYMBOL(__blk_mq_end_request);
-void blk_mq_end_request(struct request *rq, int error)
+void blk_mq_end_request(struct request *rq, blk_status_t error)
{
if (blk_update_request(rq, error, blk_rq_bytes(rq)))
BUG();
@@ -564,11 +659,10 @@ static void blk_mq_requeue_work(struct work_struct *work)
container_of(work, struct request_queue, requeue_work.work);
LIST_HEAD(rq_list);
struct request *rq, *next;
- unsigned long flags;
- spin_lock_irqsave(&q->requeue_lock, flags);
+ spin_lock_irq(&q->requeue_lock);
list_splice_init(&q->requeue_list, &rq_list);
- spin_unlock_irqrestore(&q->requeue_lock, flags);
+ spin_unlock_irq(&q->requeue_lock);
list_for_each_entry_safe(rq, next, &rq_list, queuelist) {
if (!(rq->rq_flags & RQF_SOFTBARRIER))
@@ -623,8 +717,8 @@ EXPORT_SYMBOL(blk_mq_kick_requeue_list);
void blk_mq_delay_kick_requeue_list(struct request_queue *q,
unsigned long msecs)
{
- kblockd_schedule_delayed_work(&q->requeue_work,
- msecs_to_jiffies(msecs));
+ kblockd_mod_delayed_work_on(WORK_CPU_UNBOUND, &q->requeue_work,
+ msecs_to_jiffies(msecs));
}
EXPORT_SYMBOL(blk_mq_delay_kick_requeue_list);
@@ -753,50 +847,6 @@ static void blk_mq_timeout_work(struct work_struct *work)
blk_queue_exit(q);
}
-/*
- * Reverse check our software queue for entries that we could potentially
- * merge with. Currently includes a hand-wavy stop count of 8, to not spend
- * too much time checking for merges.
- */
-static bool blk_mq_attempt_merge(struct request_queue *q,
- struct blk_mq_ctx *ctx, struct bio *bio)
-{
- struct request *rq;
- int checked = 8;
-
- list_for_each_entry_reverse(rq, &ctx->rq_list, queuelist) {
- bool merged = false;
-
- if (!checked--)
- break;
-
- if (!blk_rq_merge_ok(rq, bio))
- continue;
-
- switch (blk_try_merge(rq, bio)) {
- case ELEVATOR_BACK_MERGE:
- if (blk_mq_sched_allow_merge(q, rq, bio))
- merged = bio_attempt_back_merge(q, rq, bio);
- break;
- case ELEVATOR_FRONT_MERGE:
- if (blk_mq_sched_allow_merge(q, rq, bio))
- merged = bio_attempt_front_merge(q, rq, bio);
- break;
- case ELEVATOR_DISCARD_MERGE:
- merged = bio_attempt_discard_merge(q, rq, bio);
- break;
- default:
- continue;
- }
-
- if (merged)
- ctx->rq_merged++;
- return merged;
- }
-
- return false;
-}
-
struct flush_busy_ctx_data {
struct blk_mq_hw_ctx *hctx;
struct list_head *list;
@@ -926,14 +976,14 @@ static bool reorder_tags_to_front(struct list_head *list)
return first != NULL;
}
-static int blk_mq_dispatch_wake(wait_queue_t *wait, unsigned mode, int flags,
+static int blk_mq_dispatch_wake(wait_queue_entry_t *wait, unsigned mode, int flags,
void *key)
{
struct blk_mq_hw_ctx *hctx;
hctx = container_of(wait, struct blk_mq_hw_ctx, dispatch_wait);
- list_del(&wait->task_list);
+ list_del(&wait->entry);
clear_bit_unlock(BLK_MQ_S_TAG_WAITING, &hctx->state);
blk_mq_run_hw_queue(hctx, true);
return 1;
@@ -968,7 +1018,7 @@ bool blk_mq_dispatch_rq_list(struct request_queue *q, struct list_head *list)
{
struct blk_mq_hw_ctx *hctx;
struct request *rq;
- int errors, queued, ret = BLK_MQ_RQ_QUEUE_OK;
+ int errors, queued;
if (list_empty(list))
return false;
@@ -979,6 +1029,7 @@ bool blk_mq_dispatch_rq_list(struct request_queue *q, struct list_head *list)
errors = queued = 0;
do {
struct blk_mq_queue_data bd;
+ blk_status_t ret;
rq = list_first_entry(list, struct request, queuelist);
if (!blk_mq_get_driver_tag(rq, &hctx, false)) {
@@ -1019,25 +1070,20 @@ bool blk_mq_dispatch_rq_list(struct request_queue *q, struct list_head *list)
}
ret = q->mq_ops->queue_rq(hctx, &bd);
- switch (ret) {
- case BLK_MQ_RQ_QUEUE_OK:
- queued++;
- break;
- case BLK_MQ_RQ_QUEUE_BUSY:
+ if (ret == BLK_STS_RESOURCE) {
blk_mq_put_driver_tag_hctx(hctx, rq);
list_add(&rq->queuelist, list);
__blk_mq_requeue_request(rq);
break;
- default:
- pr_err("blk-mq: bad return on queue: %d\n", ret);
- case BLK_MQ_RQ_QUEUE_ERROR:
+ }
+
+ if (unlikely(ret != BLK_STS_OK)) {
errors++;
- blk_mq_end_request(rq, -EIO);
- break;
+ blk_mq_end_request(rq, BLK_STS_IOERR);
+ continue;
}
- if (ret == BLK_MQ_RQ_QUEUE_BUSY)
- break;
+ queued++;
} while (!list_empty(list));
hctx->dispatched[queued_to_index(queued)]++;
@@ -1075,7 +1121,7 @@ bool blk_mq_dispatch_rq_list(struct request_queue *q, struct list_head *list)
* - blk_mq_run_hw_queue() checks whether or not a queue has
* been stopped before rerunning a queue.
* - Some but not all block drivers stop a queue before
- * returning BLK_MQ_RQ_QUEUE_BUSY. Two exceptions are scsi-mq
+ * returning BLK_STS_RESOURCE. Two exceptions are scsi-mq
* and dm-rq.
*/
if (!blk_mq_sched_needs_restart(hctx) &&
@@ -1090,9 +1136,19 @@ static void __blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx)
{
int srcu_idx;
+ /*
+ * We should be running this queue from one of the CPUs that
+ * are mapped to it.
+ */
WARN_ON(!cpumask_test_cpu(raw_smp_processor_id(), hctx->cpumask) &&
cpu_online(hctx->next_cpu));
+ /*
+ * We can't run the queue inline with ints disabled. Ensure that
+ * we catch bad users of this early.
+ */
+ WARN_ON_ONCE(in_interrupt());
+
if (!(hctx->flags & BLK_MQ_F_BLOCKING)) {
rcu_read_lock();
blk_mq_sched_dispatch_requests(hctx);
@@ -1100,9 +1156,9 @@ static void __blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx)
} else {
might_sleep();
- srcu_idx = srcu_read_lock(&hctx->queue_rq_srcu);
+ srcu_idx = srcu_read_lock(hctx->queue_rq_srcu);
blk_mq_sched_dispatch_requests(hctx);
- srcu_read_unlock(&hctx->queue_rq_srcu, srcu_idx);
+ srcu_read_unlock(hctx->queue_rq_srcu, srcu_idx);
}
}
@@ -1134,8 +1190,10 @@ static int blk_mq_hctx_next_cpu(struct blk_mq_hw_ctx *hctx)
static void __blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async,
unsigned long msecs)
{
- if (unlikely(blk_mq_hctx_stopped(hctx) ||
- !blk_mq_hw_queue_mapped(hctx)))
+ if (WARN_ON_ONCE(!blk_mq_hw_queue_mapped(hctx)))
+ return;
+
+ if (unlikely(blk_mq_hctx_stopped(hctx)))
return;
if (!async && !(hctx->flags & BLK_MQ_F_BLOCKING)) {
@@ -1201,34 +1259,39 @@ bool blk_mq_queue_stopped(struct request_queue *q)
}
EXPORT_SYMBOL(blk_mq_queue_stopped);
-static void __blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx, bool sync)
+/*
+ * This function is often used for pausing .queue_rq() by driver when
+ * there isn't enough resource or some conditions aren't satisfied, and
+ * BLK_STS_RESOURCE is usually returned.
+ *
+ * We do not guarantee that dispatch can be drained or blocked
+ * after blk_mq_stop_hw_queue() returns. Please use
+ * blk_mq_quiesce_queue() for that requirement.
+ */
+void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx)
{
- if (sync)
- cancel_delayed_work_sync(&hctx->run_work);
- else
- cancel_delayed_work(&hctx->run_work);
+ cancel_delayed_work(&hctx->run_work);
set_bit(BLK_MQ_S_STOPPED, &hctx->state);
}
-
-void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx)
-{
- __blk_mq_stop_hw_queue(hctx, false);
-}
EXPORT_SYMBOL(blk_mq_stop_hw_queue);
-static void __blk_mq_stop_hw_queues(struct request_queue *q, bool sync)
+/*
+ * This function is often used for pausing .queue_rq() by driver when
+ * there isn't enough resource or some conditions aren't satisfied, and
+ * BLK_STS_RESOURCE is usually returned.
+ *
+ * We do not guarantee that dispatch can be drained or blocked
+ * after blk_mq_stop_hw_queues() returns. Please use
+ * blk_mq_quiesce_queue() for that requirement.
+ */
+void blk_mq_stop_hw_queues(struct request_queue *q)
{
struct blk_mq_hw_ctx *hctx;
int i;
queue_for_each_hw_ctx(q, hctx, i)
- __blk_mq_stop_hw_queue(hctx, sync);
-}
-
-void blk_mq_stop_hw_queues(struct request_queue *q)
-{
- __blk_mq_stop_hw_queues(q, false);
+ blk_mq_stop_hw_queue(hctx);
}
EXPORT_SYMBOL(blk_mq_stop_hw_queues);
@@ -1295,7 +1358,7 @@ static void blk_mq_run_work_fn(struct work_struct *work)
void blk_mq_delay_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs)
{
- if (unlikely(!blk_mq_hw_queue_mapped(hctx)))
+ if (WARN_ON_ONCE(!blk_mq_hw_queue_mapped(hctx)))
return;
/*
@@ -1317,6 +1380,8 @@ static inline void __blk_mq_insert_req_list(struct blk_mq_hw_ctx *hctx,
{
struct blk_mq_ctx *ctx = rq->mq_ctx;
+ lockdep_assert_held(&ctx->lock);
+
trace_block_rq_insert(hctx->queue, rq);
if (at_head)
@@ -1330,10 +1395,28 @@ void __blk_mq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq,
{
struct blk_mq_ctx *ctx = rq->mq_ctx;
+ lockdep_assert_held(&ctx->lock);
+
__blk_mq_insert_req_list(hctx, rq, at_head);
blk_mq_hctx_mark_pending(hctx, ctx);
}
+/*
+ * Should only be used carefully, when the caller knows we want to
+ * bypass a potential IO scheduler on the target device.
+ */
+void blk_mq_request_bypass_insert(struct request *rq)
+{
+ struct blk_mq_ctx *ctx = rq->mq_ctx;
+ struct blk_mq_hw_ctx *hctx = blk_mq_map_queue(rq->q, ctx->cpu);
+
+ spin_lock(&hctx->lock);
+ list_add_tail(&rq->queuelist, &hctx->dispatch);
+ spin_unlock(&hctx->lock);
+
+ blk_mq_run_hw_queue(hctx, false);
+}
+
void blk_mq_insert_requests(struct blk_mq_hw_ctx *hctx, struct blk_mq_ctx *ctx,
struct list_head *list)
@@ -1427,30 +1510,13 @@ static inline bool hctx_allow_merges(struct blk_mq_hw_ctx *hctx)
!blk_queue_nomerges(hctx->queue);
}
-static inline bool blk_mq_merge_queue_io(struct blk_mq_hw_ctx *hctx,
- struct blk_mq_ctx *ctx,
- struct request *rq, struct bio *bio)
+static inline void blk_mq_queue_io(struct blk_mq_hw_ctx *hctx,
+ struct blk_mq_ctx *ctx,
+ struct request *rq)
{
- if (!hctx_allow_merges(hctx) || !bio_mergeable(bio)) {
- blk_mq_bio_to_request(rq, bio);
- spin_lock(&ctx->lock);
-insert_rq:
- __blk_mq_insert_request(hctx, rq, false);
- spin_unlock(&ctx->lock);
- return false;
- } else {
- struct request_queue *q = hctx->queue;
-
- spin_lock(&ctx->lock);
- if (!blk_mq_attempt_merge(q, ctx, bio)) {
- blk_mq_bio_to_request(rq, bio);
- goto insert_rq;
- }
-
- spin_unlock(&ctx->lock);
- __blk_mq_finish_request(hctx, ctx, rq);
- return true;
- }
+ spin_lock(&ctx->lock);
+ __blk_mq_insert_request(hctx, rq, false);
+ spin_unlock(&ctx->lock);
}
static blk_qc_t request_to_qc_t(struct blk_mq_hw_ctx *hctx, struct request *rq)
@@ -1471,10 +1537,11 @@ static void __blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx,
.last = true,
};
blk_qc_t new_cookie;
- int ret;
+ blk_status_t ret;
bool run_queue = true;
- if (blk_mq_hctx_stopped(hctx)) {
+ /* RCU or SRCU read lock is needed before checking quiesced flag */
+ if (blk_mq_hctx_stopped(hctx) || blk_queue_quiesced(q)) {
run_queue = false;
goto insert;
}
@@ -1493,18 +1560,19 @@ static void __blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx,
* would have done
*/
ret = q->mq_ops->queue_rq(hctx, &bd);
- if (ret == BLK_MQ_RQ_QUEUE_OK) {
+ switch (ret) {
+ case BLK_STS_OK:
*cookie = new_cookie;
return;
- }
-
- if (ret == BLK_MQ_RQ_QUEUE_ERROR) {
+ case BLK_STS_RESOURCE:
+ __blk_mq_requeue_request(rq);
+ goto insert;
+ default:
*cookie = BLK_QC_T_NONE;
- blk_mq_end_request(rq, -EIO);
+ blk_mq_end_request(rq, ret);
return;
}
- __blk_mq_requeue_request(rq);
insert:
blk_mq_sched_insert_request(rq, false, run_queue, false, may_sleep);
}
@@ -1521,9 +1589,9 @@ static void blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx,
might_sleep();
- srcu_idx = srcu_read_lock(&hctx->queue_rq_srcu);
+ srcu_idx = srcu_read_lock(hctx->queue_rq_srcu);
__blk_mq_try_issue_directly(hctx, rq, cookie, true);
- srcu_read_unlock(&hctx->queue_rq_srcu, srcu_idx);
+ srcu_read_unlock(hctx->queue_rq_srcu, srcu_idx);
}
}
@@ -1541,12 +1609,10 @@ static blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)
blk_queue_bounce(q, &bio);
- blk_queue_split(q, &bio, q->bio_split);
+ blk_queue_split(q, &bio);
- if (bio_integrity_enabled(bio) && bio_integrity_prep(bio)) {
- bio_io_error(bio);
+ if (!bio_integrity_prep(bio))
return BLK_QC_T_NONE;
- }
if (!is_flush_fua && !blk_queue_nomerges(q) &&
blk_attempt_plug_merge(q, bio, &request_count, &same_queue_rq))
@@ -1559,9 +1625,11 @@ static blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)
trace_block_getrq(q, bio, bio->bi_opf);
- rq = blk_mq_sched_get_request(q, bio, bio->bi_opf, &data);
+ rq = blk_mq_get_request(q, bio, bio->bi_opf, &data);
if (unlikely(!rq)) {
__wbt_done(q->rq_wb, wb_acct);
+ if (bio->bi_opf & REQ_NOWAIT)
+ bio_wouldblock_error(bio);
return BLK_QC_T_NONE;
}
@@ -1639,11 +1707,12 @@ static blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)
blk_mq_put_ctx(data.ctx);
blk_mq_bio_to_request(rq, bio);
blk_mq_sched_insert_request(rq, false, true, true, true);
- } else if (!blk_mq_merge_queue_io(data.hctx, data.ctx, rq, bio)) {
+ } else {
blk_mq_put_ctx(data.ctx);
+ blk_mq_bio_to_request(rq, bio);
+ blk_mq_queue_io(data.hctx, data.ctx, rq);
blk_mq_run_hw_queue(data.hctx, true);
- } else
- blk_mq_put_ctx(data.ctx);
+ }
return cookie;
}
@@ -1866,7 +1935,7 @@ static void blk_mq_exit_hctx(struct request_queue *q,
set->ops->exit_hctx(hctx, hctx_idx);
if (hctx->flags & BLK_MQ_F_BLOCKING)
- cleanup_srcu_struct(&hctx->queue_rq_srcu);
+ cleanup_srcu_struct(hctx->queue_rq_srcu);
blk_mq_remove_cpuhp(hctx);
blk_free_flush_queue(hctx->fq);
@@ -1900,7 +1969,6 @@ static int blk_mq_init_hctx(struct request_queue *q,
spin_lock_init(&hctx->lock);
INIT_LIST_HEAD(&hctx->dispatch);
hctx->queue = q;
- hctx->queue_num = hctx_idx;
hctx->flags = set->flags & ~BLK_MQ_F_TAG_SHARED;
cpuhp_state_add_instance_nocalls(CPUHP_BLK_MQ_DEAD, &hctx->cpuhp_dead);
@@ -1939,7 +2007,7 @@ static int blk_mq_init_hctx(struct request_queue *q,
goto free_fq;
if (hctx->flags & BLK_MQ_F_BLOCKING)
- init_srcu_struct(&hctx->queue_rq_srcu);
+ init_srcu_struct(hctx->queue_rq_srcu);
blk_mq_debugfs_register_hctx(q, hctx);
@@ -1975,8 +2043,8 @@ static void blk_mq_init_cpu_queues(struct request_queue *q,
INIT_LIST_HEAD(&__ctx->rq_list);
__ctx->queue = q;
- /* If the cpu isn't online, the cpu is mapped to first hctx */
- if (!cpu_online(i))
+ /* If the cpu isn't present, the cpu is mapped to first hctx */
+ if (!cpu_present(i))
continue;
hctx = blk_mq_map_queue(q, i);
@@ -2019,8 +2087,7 @@ static void blk_mq_free_map_and_requests(struct blk_mq_tag_set *set,
}
}
-static void blk_mq_map_swqueue(struct request_queue *q,
- const struct cpumask *online_mask)
+static void blk_mq_map_swqueue(struct request_queue *q)
{
unsigned int i, hctx_idx;
struct blk_mq_hw_ctx *hctx;
@@ -2038,13 +2105,11 @@ static void blk_mq_map_swqueue(struct request_queue *q,
}
/*
- * Map software to hardware queues
+ * Map software to hardware queues.
+ *
+ * If the cpu isn't present, the cpu is mapped to first hctx.
*/
- for_each_possible_cpu(i) {
- /* If the cpu isn't online, the cpu is mapped to first hctx */
- if (!cpumask_test_cpu(i, online_mask))
- continue;
-
+ for_each_present_cpu(i) {
hctx_idx = q->mq_map[i];
/* unmapped hw queue can be remapped after CPU topo changed */
if (!set->tags[hctx_idx] &&
@@ -2224,6 +2289,20 @@ struct request_queue *blk_mq_init_queue(struct blk_mq_tag_set *set)
}
EXPORT_SYMBOL(blk_mq_init_queue);
+static int blk_mq_hw_ctx_size(struct blk_mq_tag_set *tag_set)
+{
+ int hw_ctx_size = sizeof(struct blk_mq_hw_ctx);
+
+ BUILD_BUG_ON(ALIGN(offsetof(struct blk_mq_hw_ctx, queue_rq_srcu),
+ __alignof__(struct blk_mq_hw_ctx)) !=
+ sizeof(struct blk_mq_hw_ctx));
+
+ if (tag_set->flags & BLK_MQ_F_BLOCKING)
+ hw_ctx_size += sizeof(struct srcu_struct);
+
+ return hw_ctx_size;
+}
+
static void blk_mq_realloc_hw_ctxs(struct blk_mq_tag_set *set,
struct request_queue *q)
{
@@ -2238,7 +2317,7 @@ static void blk_mq_realloc_hw_ctxs(struct blk_mq_tag_set *set,
continue;
node = blk_mq_hw_queue_to_node(q->mq_map, i);
- hctxs[i] = kzalloc_node(sizeof(struct blk_mq_hw_ctx),
+ hctxs[i] = kzalloc_node(blk_mq_hw_ctx_size(set),
GFP_KERNEL, node);
if (!hctxs[i])
break;
@@ -2340,16 +2419,8 @@ struct request_queue *blk_mq_init_allocated_queue(struct blk_mq_tag_set *set,
blk_queue_softirq_done(q, set->ops->complete);
blk_mq_init_cpu_queues(q, set->nr_hw_queues);
-
- get_online_cpus();
- mutex_lock(&all_q_mutex);
-
- list_add_tail(&q->all_q_node, &all_q_list);
blk_mq_add_queue_tag_set(set, q);
- blk_mq_map_swqueue(q, cpu_online_mask);
-
- mutex_unlock(&all_q_mutex);
- put_online_cpus();
+ blk_mq_map_swqueue(q);
if (!(set->flags & BLK_MQ_F_NO_SCHED)) {
int ret;
@@ -2375,18 +2446,12 @@ void blk_mq_free_queue(struct request_queue *q)
{
struct blk_mq_tag_set *set = q->tag_set;
- mutex_lock(&all_q_mutex);
- list_del_init(&q->all_q_node);
- mutex_unlock(&all_q_mutex);
-
blk_mq_del_queue_tag_set(q);
-
blk_mq_exit_hw_queues(q, set, set->nr_hw_queues);
}
/* Basically redo blk_mq_init_queue with queue frozen */
-static void blk_mq_queue_reinit(struct request_queue *q,
- const struct cpumask *online_mask)
+static void blk_mq_queue_reinit(struct request_queue *q)
{
WARN_ON_ONCE(!atomic_read(&q->mq_freeze_depth));
@@ -2399,76 +2464,12 @@ static void blk_mq_queue_reinit(struct request_queue *q,
* involves free and re-allocate memory, worthy doing?)
*/
- blk_mq_map_swqueue(q, online_mask);
+ blk_mq_map_swqueue(q);
blk_mq_sysfs_register(q);
blk_mq_debugfs_register_hctxs(q);
}
-/*
- * New online cpumask which is going to be set in this hotplug event.
- * Declare this cpumasks as global as cpu-hotplug operation is invoked
- * one-by-one and dynamically allocating this could result in a failure.
- */
-static struct cpumask cpuhp_online_new;
-
-static void blk_mq_queue_reinit_work(void)
-{
- struct request_queue *q;
-
- mutex_lock(&all_q_mutex);
- /*
- * We need to freeze and reinit all existing queues. Freezing
- * involves synchronous wait for an RCU grace period and doing it
- * one by one may take a long time. Start freezing all queues in
- * one swoop and then wait for the completions so that freezing can
- * take place in parallel.
- */
- list_for_each_entry(q, &all_q_list, all_q_node)
- blk_freeze_queue_start(q);
- list_for_each_entry(q, &all_q_list, all_q_node)
- blk_mq_freeze_queue_wait(q);
-
- list_for_each_entry(q, &all_q_list, all_q_node)
- blk_mq_queue_reinit(q, &cpuhp_online_new);
-
- list_for_each_entry(q, &all_q_list, all_q_node)
- blk_mq_unfreeze_queue(q);
-
- mutex_unlock(&all_q_mutex);
-}
-
-static int blk_mq_queue_reinit_dead(unsigned int cpu)
-{
- cpumask_copy(&cpuhp_online_new, cpu_online_mask);
- blk_mq_queue_reinit_work();
- return 0;
-}
-
-/*
- * Before hotadded cpu starts handling requests, new mappings must be
- * established. Otherwise, these requests in hw queue might never be
- * dispatched.
- *
- * For example, there is a single hw queue (hctx) and two CPU queues (ctx0
- * for CPU0, and ctx1 for CPU1).
- *
- * Now CPU1 is just onlined and a request is inserted into ctx1->rq_list
- * and set bit0 in pending bitmap as ctx1->index_hw is still zero.
- *
- * And then while running hw queue, blk_mq_flush_busy_ctxs() finds bit0 is set
- * in pending bitmap and tries to retrieve requests in hctx->ctxs[0]->rq_list.
- * But htx->ctxs[0] is a pointer to ctx0, so the request in ctx1->rq_list is
- * ignored.
- */
-static int blk_mq_queue_reinit_prepare(unsigned int cpu)
-{
- cpumask_copy(&cpuhp_online_new, cpu_online_mask);
- cpumask_set_cpu(cpu, &cpuhp_online_new);
- blk_mq_queue_reinit_work();
- return 0;
-}
-
static int __blk_mq_alloc_rq_maps(struct blk_mq_tag_set *set)
{
int i;
@@ -2679,7 +2680,7 @@ static void __blk_mq_update_nr_hw_queues(struct blk_mq_tag_set *set,
blk_mq_update_queue_map(set);
list_for_each_entry(q, &set->tag_list, tag_set_list) {
blk_mq_realloc_hw_ctxs(set, q);
- blk_mq_queue_reinit(q, cpu_online_mask);
+ blk_mq_queue_reinit(q);
}
list_for_each_entry(q, &set->tag_list, tag_set_list)
@@ -2895,24 +2896,10 @@ bool blk_mq_poll(struct request_queue *q, blk_qc_t cookie)
}
EXPORT_SYMBOL_GPL(blk_mq_poll);
-void blk_mq_disable_hotplug(void)
-{
- mutex_lock(&all_q_mutex);
-}
-
-void blk_mq_enable_hotplug(void)
-{
- mutex_unlock(&all_q_mutex);
-}
-
static int __init blk_mq_init(void)
{
cpuhp_setup_state_multi(CPUHP_BLK_MQ_DEAD, "block/mq:dead", NULL,
blk_mq_hctx_notify_dead);
-
- cpuhp_setup_state_nocalls(CPUHP_BLK_MQ_PREPARE, "block/mq:prepare",
- blk_mq_queue_reinit_prepare,
- blk_mq_queue_reinit_dead);
return 0;
}
subsys_initcall(blk_mq_init);
diff --git a/block/blk-mq.h b/block/blk-mq.h
index cc67b48e3551..ef15b3414da5 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -54,13 +54,9 @@ int blk_mq_alloc_rqs(struct blk_mq_tag_set *set, struct blk_mq_tags *tags,
*/
void __blk_mq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq,
bool at_head);
+void blk_mq_request_bypass_insert(struct request *rq);
void blk_mq_insert_requests(struct blk_mq_hw_ctx *hctx, struct blk_mq_ctx *ctx,
struct list_head *list);
-/*
- * CPU hotplug helpers
- */
-void blk_mq_enable_hotplug(void);
-void blk_mq_disable_hotplug(void);
/*
* CPU -> queue mappings
@@ -128,17 +124,6 @@ static inline struct blk_mq_tags *blk_mq_tags_from_data(struct blk_mq_alloc_data
return data->hctx->tags;
}
-/*
- * Internal helpers for request allocation/init/free
- */
-void blk_mq_rq_ctx_init(struct request_queue *q, struct blk_mq_ctx *ctx,
- struct request *rq, unsigned int op);
-void __blk_mq_finish_request(struct blk_mq_hw_ctx *hctx, struct blk_mq_ctx *ctx,
- struct request *rq);
-void blk_mq_finish_request(struct request *rq);
-struct request *__blk_mq_alloc_request(struct blk_mq_alloc_data *data,
- unsigned int op);
-
static inline bool blk_mq_hctx_stopped(struct blk_mq_hw_ctx *hctx)
{
return test_bit(BLK_MQ_S_STOPPED, &hctx->state);
@@ -149,4 +134,7 @@ static inline bool blk_mq_hw_queue_mapped(struct blk_mq_hw_ctx *hctx)
return hctx->nr_ctx && hctx->tags;
}
+void blk_mq_in_flight(struct request_queue *q, struct hd_struct *part,
+ unsigned int inflight[2]);
+
#endif
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 4fa81ed383ca..8559e9563c52 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -68,6 +68,7 @@ EXPORT_SYMBOL_GPL(blk_queue_rq_timeout);
void blk_queue_rq_timed_out(struct request_queue *q, rq_timed_out_fn *fn)
{
+ WARN_ON_ONCE(q->mq_ops);
q->rq_timed_out_fn = fn;
}
EXPORT_SYMBOL_GPL(blk_queue_rq_timed_out);
@@ -172,11 +173,6 @@ void blk_queue_make_request(struct request_queue *q, make_request_fn *mfn)
q->nr_batching = BLK_BATCH_REQ;
blk_set_default_limits(&q->limits);
-
- /*
- * by default assume old behaviour and bounce for any highmem page
- */
- blk_queue_bounce_limit(q, BLK_BOUNCE_HIGH);
}
EXPORT_SYMBOL(blk_queue_make_request);
diff --git a/block/blk-softirq.c b/block/blk-softirq.c
index 87b7df4851bf..07125e7941f4 100644
--- a/block/blk-softirq.c
+++ b/block/blk-softirq.c
@@ -60,7 +60,7 @@ static void trigger_softirq(void *data)
static int raise_blk_irq(int cpu, struct request *rq)
{
if (cpu_online(cpu)) {
- struct call_single_data *data = &rq->csd;
+ call_single_data_t *data = &rq->csd;
data->func = trigger_softirq;
data->info = rq;
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 27aceab1cc31..b8362c0df51d 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -931,7 +931,9 @@ void blk_unregister_queue(struct gendisk *disk)
if (WARN_ON(!q))
return;
+ mutex_lock(&q->sysfs_lock);
queue_flag_clear_unlocked(QUEUE_FLAG_REGISTERED, q);
+ mutex_unlock(&q->sysfs_lock);
wbt_exit(q);
diff --git a/block/blk-tag.c b/block/blk-tag.c
index 07cc329fa4b0..e1a9c15eb1b8 100644
--- a/block/blk-tag.c
+++ b/block/blk-tag.c
@@ -258,15 +258,14 @@ EXPORT_SYMBOL(blk_queue_resize_tags);
* all transfers have been done for a request. It's important to call
* this function before end_that_request_last(), as that will put the
* request back on the free list thus corrupting the internal tag list.
- *
- * Notes:
- * queue lock must be held.
**/
void blk_queue_end_tag(struct request_queue *q, struct request *rq)
{
struct blk_queue_tag *bqt = q->queue_tags;
unsigned tag = rq->tag; /* negative tags invalid */
+ lockdep_assert_held(q->queue_lock);
+
BUG_ON(tag >= bqt->real_max_depth);
list_del_init(&rq->queuelist);
@@ -291,7 +290,6 @@ void blk_queue_end_tag(struct request_queue *q, struct request *rq)
*/
clear_bit_unlock(tag, bqt->tag_map);
}
-EXPORT_SYMBOL(blk_queue_end_tag);
/**
* blk_queue_start_tag - find a free tag and assign it
@@ -307,9 +305,6 @@ EXPORT_SYMBOL(blk_queue_end_tag);
* calling this function. The request will also be removed from
* the request queue, so it's the drivers responsibility to readd
* it if it should need to be restarted for some reason.
- *
- * Notes:
- * queue lock must be held.
**/
int blk_queue_start_tag(struct request_queue *q, struct request *rq)
{
@@ -317,6 +312,8 @@ int blk_queue_start_tag(struct request_queue *q, struct request *rq)
unsigned max_depth;
int tag;
+ lockdep_assert_held(q->queue_lock);
+
if (unlikely((rq->rq_flags & RQF_QUEUED))) {
printk(KERN_ERR
"%s: request %p for device [%s] already tagged %d",
@@ -389,14 +386,13 @@ EXPORT_SYMBOL(blk_queue_start_tag);
* Hardware conditions may dictate a need to stop all pending requests.
* In this case, we will safely clear the block side of the tag queue and
* readd all requests to the request queue in the right order.
- *
- * Notes:
- * queue lock must be held.
**/
void blk_queue_invalidate_tags(struct request_queue *q)
{
struct list_head *tmp, *n;
+ lockdep_assert_held(q->queue_lock);
+
list_for_each_safe(tmp, n, &q->tag_busy_list)
blk_requeue_request(q, list_entry_rq(tmp));
}
diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index a7285bf2831c..17816a028dcb 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -373,15 +373,21 @@ static unsigned int tg_iops_limit(struct throtl_grp *tg, int rw)
if (likely(!blk_trace_note_message_enabled(__td->queue))) \
break; \
if ((__tg)) { \
- char __pbuf[128]; \
- \
- blkg_path(tg_to_blkg(__tg), __pbuf, sizeof(__pbuf)); \
- blk_add_trace_msg(__td->queue, "throtl %s " fmt, __pbuf, ##args); \
+ blk_add_cgroup_trace_msg(__td->queue, \
+ tg_to_blkg(__tg)->blkcg, "throtl " fmt, ##args);\
} else { \
blk_add_trace_msg(__td->queue, "throtl " fmt, ##args); \
} \
} while (0)
+static inline unsigned int throtl_bio_data_size(struct bio *bio)
+{
+ /* assume it's one sector */
+ if (unlikely(bio_op(bio) == REQ_OP_DISCARD))
+ return 512;
+ return bio->bi_iter.bi_size;
+}
+
static void throtl_qnode_init(struct throtl_qnode *qn, struct throtl_grp *tg)
{
INIT_LIST_HEAD(&qn->node);
@@ -934,6 +940,7 @@ static bool tg_with_in_bps_limit(struct throtl_grp *tg, struct bio *bio,
bool rw = bio_data_dir(bio);
u64 bytes_allowed, extra_bytes, tmp;
unsigned long jiffy_elapsed, jiffy_wait, jiffy_elapsed_rnd;
+ unsigned int bio_size = throtl_bio_data_size(bio);
jiffy_elapsed = jiffy_elapsed_rnd = jiffies - tg->slice_start[rw];
@@ -947,14 +954,14 @@ static bool tg_with_in_bps_limit(struct throtl_grp *tg, struct bio *bio,
do_div(tmp, HZ);
bytes_allowed = tmp;
- if (tg->bytes_disp[rw] + bio->bi_iter.bi_size <= bytes_allowed) {
+ if (tg->bytes_disp[rw] + bio_size <= bytes_allowed) {
if (wait)
*wait = 0;
return true;
}
/* Calc approx time to dispatch */
- extra_bytes = tg->bytes_disp[rw] + bio->bi_iter.bi_size - bytes_allowed;
+ extra_bytes = tg->bytes_disp[rw] + bio_size - bytes_allowed;
jiffy_wait = div64_u64(extra_bytes * HZ, tg_bps_limit(tg, rw));
if (!jiffy_wait)
@@ -1034,11 +1041,12 @@ static bool tg_may_dispatch(struct throtl_grp *tg, struct bio *bio,
static void throtl_charge_bio(struct throtl_grp *tg, struct bio *bio)
{
bool rw = bio_data_dir(bio);
+ unsigned int bio_size = throtl_bio_data_size(bio);
/* Charge the bio to the group */
- tg->bytes_disp[rw] += bio->bi_iter.bi_size;
+ tg->bytes_disp[rw] += bio_size;
tg->io_disp[rw]++;
- tg->last_bytes_disp[rw] += bio->bi_iter.bi_size;
+ tg->last_bytes_disp[rw] += bio_size;
tg->last_io_disp[rw]++;
/*
@@ -1903,11 +1911,11 @@ static void throtl_upgrade_state(struct throtl_data *td)
tg->disptime = jiffies - 1;
throtl_select_dispatch(sq);
- throtl_schedule_next_dispatch(sq, false);
+ throtl_schedule_next_dispatch(sq, true);
}
rcu_read_unlock();
throtl_select_dispatch(&td->service_queue);
- throtl_schedule_next_dispatch(&td->service_queue, false);
+ throtl_schedule_next_dispatch(&td->service_queue, true);
queue_work(kthrotld_workqueue, &td->dispatch_work);
}
@@ -2104,14 +2112,9 @@ static inline void throtl_update_latency_buckets(struct throtl_data *td)
static void blk_throtl_assoc_bio(struct throtl_grp *tg, struct bio *bio)
{
#ifdef CONFIG_BLK_DEV_THROTTLING_LOW
- int ret;
-
- ret = bio_associate_current(bio);
- if (ret == 0 || ret == -EBUSY)
+ if (bio->bi_css)
bio->bi_cg_private = tg;
blk_stat_set_issue(&bio->bi_issue_stat, bio_sectors(bio));
-#else
- bio_associate_current(bio);
#endif
}
diff --git a/block/blk-timeout.c b/block/blk-timeout.c
index cbff183f3d9f..17ec83bb0900 100644
--- a/block/blk-timeout.c
+++ b/block/blk-timeout.c
@@ -189,13 +189,15 @@ unsigned long blk_rq_timeout(unsigned long timeout)
* Notes:
* Each request has its own timer, and as it is added to the queue, we
* set up the timer. When the request completes, we cancel the timer.
- * Queue lock must be held for the non-mq case, mq case doesn't care.
*/
void blk_add_timer(struct request *req)
{
struct request_queue *q = req->q;
unsigned long expiry;
+ if (!q->mq_ops)
+ lockdep_assert_held(q->queue_lock);
+
/* blk-mq has its own handler, so we don't need ->rq_timed_out_fn */
if (!q->mq_ops && !q->rq_timed_out_fn)
return;
diff --git a/block/blk-wbt.c b/block/blk-wbt.c
index 17676f4d7fd1..6a9a0f03a67b 100644
--- a/block/blk-wbt.c
+++ b/block/blk-wbt.c
@@ -503,7 +503,7 @@ static inline unsigned int get_limit(struct rq_wb *rwb, unsigned long rw)
}
static inline bool may_queue(struct rq_wb *rwb, struct rq_wait *rqw,
- wait_queue_t *wait, unsigned long rw)
+ wait_queue_entry_t *wait, unsigned long rw)
{
/*
* inc it here even if disabled, since we'll dec it at completion.
@@ -520,7 +520,7 @@ static inline bool may_queue(struct rq_wb *rwb, struct rq_wait *rqw,
* in line to be woken up, wait for our turn.
*/
if (waitqueue_active(&rqw->wait) &&
- rqw->wait.task_list.next != &wait->task_list)
+ rqw->wait.head.next != &wait->entry)
return false;
return atomic_inc_below(&rqw->inflight, get_limit(rwb, rw));
diff --git a/block/blk-zoned.c b/block/blk-zoned.c
index 3bd15d8095b1..ff57fb51b338 100644
--- a/block/blk-zoned.c
+++ b/block/blk-zoned.c
@@ -116,7 +116,7 @@ int blkdev_report_zones(struct block_device *bdev,
if (!bio)
return -ENOMEM;
- bio->bi_bdev = bdev;
+ bio_set_dev(bio, bdev);
bio->bi_iter.bi_sector = blk_zone_start(q, sector);
bio_set_op_attrs(bio, REQ_OP_ZONE_REPORT, 0);
@@ -234,7 +234,7 @@ int blkdev_reset_zones(struct block_device *bdev,
bio = bio_alloc(gfp_mask, 0);
bio->bi_iter.bi_sector = sector;
- bio->bi_bdev = bdev;
+ bio_set_dev(bio, bdev);
bio_set_op_attrs(bio, REQ_OP_ZONE_RESET, 0);
ret = submit_bio_wait(bio);
diff --git a/block/blk.h b/block/blk.h
index 83c8e1100525..fcb9775b997d 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -64,7 +64,6 @@ void blk_rq_bio_prep(struct request_queue *q, struct request *rq,
struct bio *bio);
void blk_queue_bypass_start(struct request_queue *q);
void blk_queue_bypass_end(struct request_queue *q);
-void blk_dequeue_request(struct request *rq);
void __blk_queue_free_tags(struct request_queue *q);
void blk_freeze_queue(struct request_queue *q);
@@ -81,10 +80,21 @@ static inline void blk_queue_enter_live(struct request_queue *q)
#ifdef CONFIG_BLK_DEV_INTEGRITY
void blk_flush_integrity(void);
+bool __bio_integrity_endio(struct bio *);
+static inline bool bio_integrity_endio(struct bio *bio)
+{
+ if (bio_integrity(bio))
+ return __bio_integrity_endio(bio);
+ return true;
+}
#else
static inline void blk_flush_integrity(void)
{
}
+static inline bool bio_integrity_endio(struct bio *bio)
+{
+ return true;
+}
#endif
void blk_timeout_work(struct work_struct *work);
@@ -143,6 +153,8 @@ static inline struct request *__elv_next_request(struct request_queue *q)
struct request *rq;
struct blk_flush_queue *fq = blk_get_flush_queue(q, NULL);
+ WARN_ON_ONCE(q->mq_ops);
+
while (1) {
if (!list_empty(&q->queue_head)) {
rq = list_entry_rq(q->queue_head.next);
@@ -191,6 +203,8 @@ static inline void elv_deactivate_rq(struct request_queue *q, struct request *rq
e->type->ops.sq.elevator_deactivate_req_fn(q, rq);
}
+struct hd_struct *__disk_get_part(struct gendisk *disk, int partno);
+
#ifdef CONFIG_FAIL_IO_TIMEOUT
int blk_should_fake_timeout(struct request_queue *);
ssize_t part_timeout_show(struct device *, struct device_attribute *, char *);
@@ -334,4 +348,17 @@ static inline void blk_throtl_bio_endio(struct bio *bio) { }
static inline void blk_throtl_stat_add(struct request *rq, u64 time) { }
#endif
+#ifdef CONFIG_BOUNCE
+extern int init_emergency_isa_pool(void);
+extern void blk_queue_bounce(struct request_queue *q, struct bio **bio);
+#else
+static inline int init_emergency_isa_pool(void)
+{
+ return 0;
+}
+static inline void blk_queue_bounce(struct request_queue *q, struct bio **bio)
+{
+}
+#endif /* CONFIG_BOUNCE */
+
#endif /* BLK_INTERNAL_H */
diff --git a/block/bounce.c b/block/bounce.c
index 1cb5dd3a5da1..5793c2dc1a15 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -22,10 +22,12 @@
#include <asm/tlbflush.h>
#include <trace/events/block.h>
+#include "blk.h"
#define POOL_SIZE 64
#define ISA_POOL_SIZE 16
+static struct bio_set *bounce_bio_set, *bounce_bio_split;
static mempool_t *page_pool, *isa_page_pool;
#if defined(CONFIG_HIGHMEM) || defined(CONFIG_NEED_BOUNCE_POOL)
@@ -40,6 +42,14 @@ static __init int init_emergency_pool(void)
BUG_ON(!page_pool);
pr_info("pool size: %d pages\n", POOL_SIZE);
+ bounce_bio_set = bioset_create(BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS);
+ BUG_ON(!bounce_bio_set);
+ if (bioset_integrity_create(bounce_bio_set, BIO_POOL_SIZE))
+ BUG_ON(1);
+
+ bounce_bio_split = bioset_create(BIO_POOL_SIZE, 0, 0);
+ BUG_ON(!bounce_bio_split);
+
return 0;
}
@@ -143,7 +153,7 @@ static void bounce_end_io(struct bio *bio, mempool_t *pool)
mempool_free(bvec->bv_page, pool);
}
- bio_orig->bi_error = bio->bi_error;
+ bio_orig->bi_status = bio->bi_status;
bio_endio(bio_orig);
bio_put(bio);
}
@@ -163,7 +173,7 @@ static void __bounce_end_io_read(struct bio *bio, mempool_t *pool)
{
struct bio *bio_orig = bio->bi_private;
- if (!bio->bi_error)
+ if (!bio->bi_status)
copy_to_high_bio_irq(bio_orig, bio);
bounce_end_io(bio, pool);
@@ -186,20 +196,31 @@ static void __blk_queue_bounce(struct request_queue *q, struct bio **bio_orig,
int rw = bio_data_dir(*bio_orig);
struct bio_vec *to, from;
struct bvec_iter iter;
- unsigned i;
-
- bio_for_each_segment(from, *bio_orig, iter)
- if (page_to_pfn(from.bv_page) > queue_bounce_pfn(q))
- goto bounce;
+ unsigned i = 0;
+ bool bounce = false;
+ int sectors = 0;
+
+ bio_for_each_segment(from, *bio_orig, iter) {
+ if (i++ < BIO_MAX_PAGES)
+ sectors += from.bv_len >> 9;
+ if (page_to_pfn(from.bv_page) > q->limits.bounce_pfn)
+ bounce = true;
+ }
+ if (!bounce)
+ return;
- return;
-bounce:
- bio = bio_clone_bioset(*bio_orig, GFP_NOIO, fs_bio_set);
+ if (sectors < bio_sectors(*bio_orig)) {
+ bio = bio_split(*bio_orig, sectors, GFP_NOIO, bounce_bio_split);
+ bio_chain(bio, *bio_orig);
+ generic_make_request(*bio_orig);
+ *bio_orig = bio;
+ }
+ bio = bio_clone_bioset(*bio_orig, GFP_NOIO, bounce_bio_set);
bio_for_each_segment_all(to, bio, i) {
struct page *page = to->bv_page;
- if (page_to_pfn(page) <= queue_bounce_pfn(q))
+ if (page_to_pfn(page) <= q->limits.bounce_pfn)
continue;
to->bv_page = mempool_alloc(pool, q->bounce_gfp);
@@ -251,7 +272,7 @@ void blk_queue_bounce(struct request_queue *q, struct bio **bio_orig)
* don't waste time iterating over bio segments
*/
if (!(q->bounce_gfp & GFP_DMA)) {
- if (queue_bounce_pfn(q) >= blk_max_pfn)
+ if (q->limits.bounce_pfn >= blk_max_pfn)
return;
pool = page_pool;
} else {
@@ -264,5 +285,3 @@ void blk_queue_bounce(struct request_queue *q, struct bio **bio_orig)
*/
__blk_queue_bounce(q, bio_orig, pool);
}
-
-EXPORT_SYMBOL(blk_queue_bounce);
diff --git a/block/bsg-lib.c b/block/bsg-lib.c
index 0a23dbba2d30..15d25ccd51a5 100644
--- a/block/bsg-lib.c
+++ b/block/bsg-lib.c
@@ -29,26 +29,25 @@
#include <scsi/scsi_cmnd.h>
/**
- * bsg_destroy_job - routine to teardown/delete a bsg job
+ * bsg_teardown_job - routine to teardown a bsg job
* @job: bsg_job that is to be torn down
*/
-static void bsg_destroy_job(struct kref *kref)
+static void bsg_teardown_job(struct kref *kref)
{
struct bsg_job *job = container_of(kref, struct bsg_job, kref);
struct request *rq = job->req;
- blk_end_request_all(rq, scsi_req(rq)->result);
-
put_device(job->dev); /* release reference for the request */
kfree(job->request_payload.sg_list);
kfree(job->reply_payload.sg_list);
- kfree(job);
+
+ blk_end_request_all(rq, BLK_STS_OK);
}
void bsg_job_put(struct bsg_job *job)
{
- kref_put(&job->kref, bsg_destroy_job);
+ kref_put(&job->kref, bsg_teardown_job);
}
EXPORT_SYMBOL_GPL(bsg_job_put);
@@ -100,7 +99,7 @@ EXPORT_SYMBOL_GPL(bsg_job_done);
*/
static void bsg_softirq_done(struct request *rq)
{
- struct bsg_job *job = rq->special;
+ struct bsg_job *job = blk_mq_rq_to_pdu(rq);
bsg_job_put(job);
}
@@ -122,33 +121,20 @@ static int bsg_map_buffer(struct bsg_buffer *buf, struct request *req)
}
/**
- * bsg_create_job - create the bsg_job structure for the bsg request
+ * bsg_prepare_job - create the bsg_job structure for the bsg request
* @dev: device that is being sent the bsg request
* @req: BSG request that needs a job structure
*/
-static int bsg_create_job(struct device *dev, struct request *req)
+static int bsg_prepare_job(struct device *dev, struct request *req)
{
struct request *rsp = req->next_rq;
- struct request_queue *q = req->q;
struct scsi_request *rq = scsi_req(req);
- struct bsg_job *job;
+ struct bsg_job *job = blk_mq_rq_to_pdu(req);
int ret;
- BUG_ON(req->special);
-
- job = kzalloc(sizeof(struct bsg_job) + q->bsg_job_size, GFP_KERNEL);
- if (!job)
- return -ENOMEM;
-
- req->special = job;
- job->req = req;
- if (q->bsg_job_size)
- job->dd_data = (void *)&job[1];
job->request = rq->cmd;
job->request_len = rq->cmd_len;
- job->reply = rq->sense;
- job->reply_len = SCSI_SENSE_BUFFERSIZE; /* Size of sense buffer
- * allocated */
+
if (req->bio) {
ret = bsg_map_buffer(&job->request_payload, req);
if (ret)
@@ -168,7 +154,6 @@ static int bsg_create_job(struct device *dev, struct request *req)
failjob_rls_rqst_payload:
kfree(job->request_payload.sg_list);
failjob_rls_job:
- kfree(job);
return -ENOMEM;
}
@@ -187,7 +172,6 @@ static void bsg_request_fn(struct request_queue *q)
{
struct device *dev = q->queuedata;
struct request *req;
- struct bsg_job *job;
int ret;
if (!get_device(dev))
@@ -199,16 +183,15 @@ static void bsg_request_fn(struct request_queue *q)
break;
spin_unlock_irq(q->queue_lock);
- ret = bsg_create_job(dev, req);
+ ret = bsg_prepare_job(dev, req);
if (ret) {
scsi_req(req)->result = ret;
- blk_end_request_all(req, ret);
+ blk_end_request_all(req, BLK_STS_OK);
spin_lock_irq(q->queue_lock);
continue;
}
- job = req->special;
- ret = q->bsg_job_fn(job);
+ ret = q->bsg_job_fn(blk_mq_rq_to_pdu(req));
spin_lock_irq(q->queue_lock);
if (ret)
break;
@@ -219,6 +202,49 @@ static void bsg_request_fn(struct request_queue *q)
spin_lock_irq(q->queue_lock);
}
+static int bsg_init_rq(struct request_queue *q, struct request *req, gfp_t gfp)
+{
+ struct bsg_job *job = blk_mq_rq_to_pdu(req);
+ struct scsi_request *sreq = &job->sreq;
+
+ /* called right after the request is allocated for the request_queue */
+
+ sreq->sense = kzalloc(SCSI_SENSE_BUFFERSIZE, gfp);
+ if (!sreq->sense)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void bsg_initialize_rq(struct request *req)
+{
+ struct bsg_job *job = blk_mq_rq_to_pdu(req);
+ struct scsi_request *sreq = &job->sreq;
+ void *sense = sreq->sense;
+
+ /* called right before the request is given to the request_queue user */
+
+ memset(job, 0, sizeof(*job));
+
+ scsi_req_init(sreq);
+
+ sreq->sense = sense;
+ sreq->sense_len = SCSI_SENSE_BUFFERSIZE;
+
+ job->req = req;
+ job->reply = sense;
+ job->reply_len = sreq->sense_len;
+ job->dd_data = job + 1;
+}
+
+static void bsg_exit_rq(struct request_queue *q, struct request *req)
+{
+ struct bsg_job *job = blk_mq_rq_to_pdu(req);
+ struct scsi_request *sreq = &job->sreq;
+
+ kfree(sreq->sense);
+}
+
/**
* bsg_setup_queue - Create and add the bsg hooks so we can receive requests
* @dev: device to attach bsg device to
@@ -226,8 +252,9 @@ static void bsg_request_fn(struct request_queue *q)
* @job_fn: bsg job handler
* @dd_job_size: size of LLD data needed for each job
*/
-struct request_queue *bsg_setup_queue(struct device *dev, char *name,
- bsg_job_fn *job_fn, int dd_job_size)
+struct request_queue *bsg_setup_queue(struct device *dev, const char *name,
+ bsg_job_fn *job_fn, int dd_job_size,
+ void (*release)(struct device *))
{
struct request_queue *q;
int ret;
@@ -235,7 +262,10 @@ struct request_queue *bsg_setup_queue(struct device *dev, char *name,
q = blk_alloc_queue(GFP_KERNEL);
if (!q)
return ERR_PTR(-ENOMEM);
- q->cmd_size = sizeof(struct scsi_request);
+ q->cmd_size = sizeof(struct bsg_job) + dd_job_size;
+ q->init_rq_fn = bsg_init_rq;
+ q->exit_rq_fn = bsg_exit_rq;
+ q->initialize_rq_fn = bsg_initialize_rq;
q->request_fn = bsg_request_fn;
ret = blk_init_allocated_queue(q);
@@ -243,13 +273,13 @@ struct request_queue *bsg_setup_queue(struct device *dev, char *name,
goto out_cleanup_queue;
q->queuedata = dev;
- q->bsg_job_size = dd_job_size;
q->bsg_job_fn = job_fn;
queue_flag_set_unlocked(QUEUE_FLAG_BIDI, q);
+ queue_flag_set_unlocked(QUEUE_FLAG_SCSI_PASSTHROUGH, q);
blk_queue_softirq_done(q, bsg_softirq_done);
blk_queue_rq_timeout(q, BLK_DEFAULT_SG_TIMEOUT);
- ret = bsg_register_queue(q, dev, name, NULL);
+ ret = bsg_register_queue(q, dev, name, release);
if (ret) {
printk(KERN_ERR "%s: bsg interface failed to "
"initialize - register queue\n", dev->kobj.name);
diff --git a/block/bsg.c b/block/bsg.c
index 6fd08544d77e..ee1335c68de7 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -236,7 +236,6 @@ bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm)
rq = blk_get_request(q, op, GFP_KERNEL);
if (IS_ERR(rq))
return rq;
- scsi_req_init(rq);
ret = blk_fill_sgv4_hdr_rq(q, rq, hdr, bd, has_write_perm);
if (ret)
@@ -294,14 +293,14 @@ out:
* async completion call-back from the block layer, when scsi/ide/whatever
* calls end_that_request_last() on a request
*/
-static void bsg_rq_end_io(struct request *rq, int uptodate)
+static void bsg_rq_end_io(struct request *rq, blk_status_t status)
{
struct bsg_command *bc = rq->end_io_data;
struct bsg_device *bd = bc->bd;
unsigned long flags;
- dprintk("%s: finished rq %p bc %p, bio %p stat %d\n",
- bd->name, rq, bc, bc->bio, uptodate);
+ dprintk("%s: finished rq %p bc %p, bio %p\n",
+ bd->name, rq, bc, bc->bio);
bc->hdr.duration = jiffies_to_msecs(jiffies - bc->hdr.duration);
@@ -750,6 +749,12 @@ static struct bsg_device *bsg_add_device(struct inode *inode,
#ifdef BSG_DEBUG
unsigned char buf[32];
#endif
+
+ if (!blk_queue_scsi_passthrough(rq)) {
+ WARN_ONCE(true, "Attempt to register a non-SCSI queue\n");
+ return ERR_PTR(-EINVAL);
+ }
+
if (!blk_get_queue(rq))
return ERR_PTR(-ENXIO);
@@ -927,15 +932,8 @@ static long bsg_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
return ret;
}
- /*
- * block device ioctls
- */
default:
-#if 0
- return ioctl_by_bdev(bd->bdev, cmd, arg);
-#else
return -ENOTTY;
-#endif
}
}
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index b7e9c7feeab2..9f342ef1ad42 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -93,13 +93,14 @@ struct cfq_ttime {
* move this into the elevator for the rq sorting as well.
*/
struct cfq_rb_root {
- struct rb_root rb;
- struct rb_node *left;
+ struct rb_root_cached rb;
+ struct rb_node *rb_rightmost;
unsigned count;
u64 min_vdisktime;
struct cfq_ttime ttime;
};
-#define CFQ_RB_ROOT (struct cfq_rb_root) { .rb = RB_ROOT, \
+#define CFQ_RB_ROOT (struct cfq_rb_root) { .rb = RB_ROOT_CACHED, \
+ .rb_rightmost = NULL, \
.ttime = {.last_end_request = ktime_get_ns(),},}
/*
@@ -656,20 +657,17 @@ static inline void cfqg_put(struct cfq_group *cfqg)
}
#define cfq_log_cfqq(cfqd, cfqq, fmt, args...) do { \
- char __pbuf[128]; \
- \
- blkg_path(cfqg_to_blkg((cfqq)->cfqg), __pbuf, sizeof(__pbuf)); \
- blk_add_trace_msg((cfqd)->queue, "cfq%d%c%c %s " fmt, (cfqq)->pid, \
+ blk_add_cgroup_trace_msg((cfqd)->queue, \
+ cfqg_to_blkg((cfqq)->cfqg)->blkcg, \
+ "cfq%d%c%c " fmt, (cfqq)->pid, \
cfq_cfqq_sync((cfqq)) ? 'S' : 'A', \
cfqq_type((cfqq)) == SYNC_NOIDLE_WORKLOAD ? 'N' : ' ',\
- __pbuf, ##args); \
+ ##args); \
} while (0)
#define cfq_log_cfqg(cfqd, cfqg, fmt, args...) do { \
- char __pbuf[128]; \
- \
- blkg_path(cfqg_to_blkg(cfqg), __pbuf, sizeof(__pbuf)); \
- blk_add_trace_msg((cfqd)->queue, "%s " fmt, __pbuf, ##args); \
+ blk_add_cgroup_trace_msg((cfqd)->queue, \
+ cfqg_to_blkg(cfqg)->blkcg, fmt, ##args); \
} while (0)
static inline void cfqg_stats_update_io_add(struct cfq_group *cfqg,
@@ -982,21 +980,11 @@ static inline u64 max_vdisktime(u64 min_vdisktime, u64 vdisktime)
return min_vdisktime;
}
-static inline u64 min_vdisktime(u64 min_vdisktime, u64 vdisktime)
-{
- s64 delta = (s64)(vdisktime - min_vdisktime);
- if (delta < 0)
- min_vdisktime = vdisktime;
-
- return min_vdisktime;
-}
-
static void update_min_vdisktime(struct cfq_rb_root *st)
{
- struct cfq_group *cfqg;
+ if (!RB_EMPTY_ROOT(&st->rb.rb_root)) {
+ struct cfq_group *cfqg = rb_entry_cfqg(st->rb.rb_leftmost);
- if (st->left) {
- cfqg = rb_entry_cfqg(st->left);
st->min_vdisktime = max_vdisktime(st->min_vdisktime,
cfqg->vdisktime);
}
@@ -1178,46 +1166,28 @@ cfq_choose_req(struct cfq_data *cfqd, struct request *rq1, struct request *rq2,
}
}
-/*
- * The below is leftmost cache rbtree addon
- */
static struct cfq_queue *cfq_rb_first(struct cfq_rb_root *root)
{
/* Service tree is empty */
if (!root->count)
return NULL;
- if (!root->left)
- root->left = rb_first(&root->rb);
-
- if (root->left)
- return rb_entry(root->left, struct cfq_queue, rb_node);
-
- return NULL;
+ return rb_entry(rb_first_cached(&root->rb), struct cfq_queue, rb_node);
}
static struct cfq_group *cfq_rb_first_group(struct cfq_rb_root *root)
{
- if (!root->left)
- root->left = rb_first(&root->rb);
-
- if (root->left)
- return rb_entry_cfqg(root->left);
-
- return NULL;
+ return rb_entry_cfqg(rb_first_cached(&root->rb));
}
-static void rb_erase_init(struct rb_node *n, struct rb_root *root)
+static void cfq_rb_erase(struct rb_node *n, struct cfq_rb_root *root)
{
- rb_erase(n, root);
+ if (root->rb_rightmost == n)
+ root->rb_rightmost = rb_prev(n);
+
+ rb_erase_cached(n, &root->rb);
RB_CLEAR_NODE(n);
-}
-static void cfq_rb_erase(struct rb_node *n, struct cfq_rb_root *root)
-{
- if (root->left == n)
- root->left = NULL;
- rb_erase_init(n, &root->rb);
--root->count;
}
@@ -1267,29 +1237,30 @@ cfqg_key(struct cfq_rb_root *st, struct cfq_group *cfqg)
static void
__cfq_group_service_tree_add(struct cfq_rb_root *st, struct cfq_group *cfqg)
{
- struct rb_node **node = &st->rb.rb_node;
+ struct rb_node **node = &st->rb.rb_root.rb_node;
struct rb_node *parent = NULL;
struct cfq_group *__cfqg;
s64 key = cfqg_key(st, cfqg);
- int left = 1;
+ bool leftmost = true, rightmost = true;
while (*node != NULL) {
parent = *node;
__cfqg = rb_entry_cfqg(parent);
- if (key < cfqg_key(st, __cfqg))
+ if (key < cfqg_key(st, __cfqg)) {
node = &parent->rb_left;
- else {
+ rightmost = false;
+ } else {
node = &parent->rb_right;
- left = 0;
+ leftmost = false;
}
}
- if (left)
- st->left = &cfqg->rb_node;
+ if (rightmost)
+ st->rb_rightmost = &cfqg->rb_node;
rb_link_node(&cfqg->rb_node, parent, node);
- rb_insert_color(&cfqg->rb_node, &st->rb);
+ rb_insert_color_cached(&cfqg->rb_node, &st->rb, leftmost);
}
/*
@@ -1390,7 +1361,7 @@ cfq_group_notify_queue_add(struct cfq_data *cfqd, struct cfq_group *cfqg)
* so that groups get lesser vtime based on their weights, so that
* if group does not loose all if it was not continuously backlogged.
*/
- n = rb_last(&st->rb);
+ n = st->rb_rightmost;
if (n) {
__cfqg = rb_entry_cfqg(n);
cfqg->vdisktime = __cfqg->vdisktime +
@@ -2232,14 +2203,14 @@ static void cfq_service_tree_add(struct cfq_data *cfqd, struct cfq_queue *cfqq,
struct cfq_queue *__cfqq;
u64 rb_key;
struct cfq_rb_root *st;
- int left;
+ bool leftmost = true;
int new_cfqq = 1;
u64 now = ktime_get_ns();
st = st_for(cfqq->cfqg, cfqq_class(cfqq), cfqq_type(cfqq));
if (cfq_class_idle(cfqq)) {
rb_key = CFQ_IDLE_DELAY;
- parent = rb_last(&st->rb);
+ parent = st->rb_rightmost;
if (parent && parent != &cfqq->rb_node) {
__cfqq = rb_entry(parent, struct cfq_queue, rb_node);
rb_key += __cfqq->rb_key;
@@ -2273,10 +2244,9 @@ static void cfq_service_tree_add(struct cfq_data *cfqd, struct cfq_queue *cfqq,
cfqq->service_tree = NULL;
}
- left = 1;
parent = NULL;
cfqq->service_tree = st;
- p = &st->rb.rb_node;
+ p = &st->rb.rb_root.rb_node;
while (*p) {
parent = *p;
__cfqq = rb_entry(parent, struct cfq_queue, rb_node);
@@ -2288,16 +2258,13 @@ static void cfq_service_tree_add(struct cfq_data *cfqd, struct cfq_queue *cfqq,
p = &parent->rb_left;
else {
p = &parent->rb_right;
- left = 0;
+ leftmost = false;
}
}
- if (left)
- st->left = &cfqq->rb_node;
-
cfqq->rb_key = rb_key;
rb_link_node(&cfqq->rb_node, parent, p);
- rb_insert_color(&cfqq->rb_node, &st->rb);
+ rb_insert_color_cached(&cfqq->rb_node, &st->rb, leftmost);
st->count++;
if (add_front || !new_cfqq)
return;
@@ -2744,7 +2711,7 @@ static struct cfq_queue *cfq_get_next_queue(struct cfq_data *cfqd)
/* There is nothing to dispatch */
if (!st)
return NULL;
- if (RB_EMPTY_ROOT(&st->rb))
+ if (RB_EMPTY_ROOT(&st->rb.rb_root))
return NULL;
return cfq_rb_first(st);
}
@@ -2946,7 +2913,8 @@ static void cfq_arm_slice_timer(struct cfq_data *cfqd)
* for devices that support queuing, otherwise we still have a problem
* with sync vs async workloads.
*/
- if (blk_queue_nonrot(cfqd->queue) && cfqd->hw_tag)
+ if (blk_queue_nonrot(cfqd->queue) && cfqd->hw_tag &&
+ !cfqd->cfq_group_idle)
return;
WARN_ON(!RB_EMPTY_ROOT(&cfqq->sort_list));
@@ -3230,7 +3198,7 @@ static struct cfq_group *cfq_get_next_cfqg(struct cfq_data *cfqd)
struct cfq_rb_root *st = &cfqd->grp_service_tree;
struct cfq_group *cfqg;
- if (RB_EMPTY_ROOT(&st->rb))
+ if (RB_EMPTY_ROOT(&st->rb.rb_root))
return NULL;
cfqg = cfq_rb_first_group(st);
update_min_vdisktime(st);
@@ -4723,13 +4691,12 @@ cfq_var_show(unsigned int var, char *page)
return sprintf(page, "%u\n", var);
}
-static ssize_t
-cfq_var_store(unsigned int *var, const char *page, size_t count)
+static void
+cfq_var_store(unsigned int *var, const char *page)
{
char *p = (char *) page;
*var = simple_strtoul(p, &p, 10);
- return count;
}
#define SHOW_FUNCTION(__FUNC, __VAR, __CONV) \
@@ -4775,7 +4742,7 @@ static ssize_t __FUNC(struct elevator_queue *e, const char *page, size_t count)
{ \
struct cfq_data *cfqd = e->elevator_data; \
unsigned int __data; \
- int ret = cfq_var_store(&__data, (page), count); \
+ cfq_var_store(&__data, (page)); \
if (__data < (MIN)) \
__data = (MIN); \
else if (__data > (MAX)) \
@@ -4784,7 +4751,7 @@ static ssize_t __FUNC(struct elevator_queue *e, const char *page, size_t count)
*(__PTR) = (u64)__data * NSEC_PER_MSEC; \
else \
*(__PTR) = __data; \
- return ret; \
+ return count; \
}
STORE_FUNCTION(cfq_quantum_store, &cfqd->cfq_quantum, 1, UINT_MAX, 0);
STORE_FUNCTION(cfq_fifo_expire_sync_store, &cfqd->cfq_fifo_expire[1], 1,
@@ -4809,13 +4776,13 @@ static ssize_t __FUNC(struct elevator_queue *e, const char *page, size_t count)
{ \
struct cfq_data *cfqd = e->elevator_data; \
unsigned int __data; \
- int ret = cfq_var_store(&__data, (page), count); \
+ cfq_var_store(&__data, (page)); \
if (__data < (MIN)) \
__data = (MIN); \
else if (__data > (MAX)) \
__data = (MAX); \
*(__PTR) = (u64)__data * NSEC_PER_USEC; \
- return ret; \
+ return count; \
}
USEC_STORE_FUNCTION(cfq_slice_idle_us_store, &cfqd->cfq_slice_idle, 0, UINT_MAX);
USEC_STORE_FUNCTION(cfq_group_idle_us_store, &cfqd->cfq_group_idle, 0, UINT_MAX);
diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
index 04325b81c2b4..abaf9d78a206 100644
--- a/block/compat_ioctl.c
+++ b/block/compat_ioctl.c
@@ -4,7 +4,6 @@
#include <linux/cdrom.h>
#include <linux/compat.h>
#include <linux/elevator.h>
-#include <linux/fd.h>
#include <linux/hdreg.h>
#include <linux/slab.h>
#include <linux/syscalls.h>
@@ -80,19 +79,16 @@ static int compat_hdio_getgeo(struct gendisk *disk, struct block_device *bdev,
static int compat_hdio_ioctl(struct block_device *bdev, fmode_t mode,
unsigned int cmd, unsigned long arg)
{
- mm_segment_t old_fs = get_fs();
- unsigned long kval;
- unsigned int __user *uvp;
+ unsigned long __user *p;
int error;
- set_fs(KERNEL_DS);
+ p = compat_alloc_user_space(sizeof(unsigned long));
error = __blkdev_driver_ioctl(bdev, mode,
- cmd, (unsigned long)(&kval));
- set_fs(old_fs);
-
+ cmd, (unsigned long)p);
if (error == 0) {
- uvp = compat_ptr(arg);
- if (put_user(kval, uvp))
+ unsigned int __user *uvp = compat_ptr(arg);
+ unsigned long v;
+ if (get_user(v, p) || put_user(v, uvp))
error = -EFAULT;
}
return error;
@@ -209,318 +205,6 @@ static int compat_blkpg_ioctl(struct block_device *bdev, fmode_t mode,
#define BLKBSZSET_32 _IOW(0x12, 113, int)
#define BLKGETSIZE64_32 _IOR(0x12, 114, int)
-struct compat_floppy_drive_params {
- char cmos;
- compat_ulong_t max_dtr;
- compat_ulong_t hlt;
- compat_ulong_t hut;
- compat_ulong_t srt;
- compat_ulong_t spinup;
- compat_ulong_t spindown;
- unsigned char spindown_offset;
- unsigned char select_delay;
- unsigned char rps;
- unsigned char tracks;
- compat_ulong_t timeout;
- unsigned char interleave_sect;
- struct floppy_max_errors max_errors;
- char flags;
- char read_track;
- short autodetect[8];
- compat_int_t checkfreq;
- compat_int_t native_format;
-};
-
-struct compat_floppy_drive_struct {
- signed char flags;
- compat_ulong_t spinup_date;
- compat_ulong_t select_date;
- compat_ulong_t first_read_date;
- short probed_format;
- short track;
- short maxblock;
- short maxtrack;
- compat_int_t generation;
- compat_int_t keep_data;
- compat_int_t fd_ref;
- compat_int_t fd_device;
- compat_int_t last_checked;
- compat_caddr_t dmabuf;
- compat_int_t bufblocks;
-};
-
-struct compat_floppy_fdc_state {
- compat_int_t spec1;
- compat_int_t spec2;
- compat_int_t dtr;
- unsigned char version;
- unsigned char dor;
- compat_ulong_t address;
- unsigned int rawcmd:2;
- unsigned int reset:1;
- unsigned int need_configure:1;
- unsigned int perp_mode:2;
- unsigned int has_fifo:1;
- unsigned int driver_version;
- unsigned char track[4];
-};
-
-struct compat_floppy_write_errors {
- unsigned int write_errors;
- compat_ulong_t first_error_sector;
- compat_int_t first_error_generation;
- compat_ulong_t last_error_sector;
- compat_int_t last_error_generation;
- compat_uint_t badness;
-};
-
-#define FDSETPRM32 _IOW(2, 0x42, struct compat_floppy_struct)
-#define FDDEFPRM32 _IOW(2, 0x43, struct compat_floppy_struct)
-#define FDSETDRVPRM32 _IOW(2, 0x90, struct compat_floppy_drive_params)
-#define FDGETDRVPRM32 _IOR(2, 0x11, struct compat_floppy_drive_params)
-#define FDGETDRVSTAT32 _IOR(2, 0x12, struct compat_floppy_drive_struct)
-#define FDPOLLDRVSTAT32 _IOR(2, 0x13, struct compat_floppy_drive_struct)
-#define FDGETFDCSTAT32 _IOR(2, 0x15, struct compat_floppy_fdc_state)
-#define FDWERRORGET32 _IOR(2, 0x17, struct compat_floppy_write_errors)
-
-static struct {
- unsigned int cmd32;
- unsigned int cmd;
-} fd_ioctl_trans_table[] = {
- { FDSETPRM32, FDSETPRM },
- { FDDEFPRM32, FDDEFPRM },
- { FDGETPRM32, FDGETPRM },
- { FDSETDRVPRM32, FDSETDRVPRM },
- { FDGETDRVPRM32, FDGETDRVPRM },
- { FDGETDRVSTAT32, FDGETDRVSTAT },
- { FDPOLLDRVSTAT32, FDPOLLDRVSTAT },
- { FDGETFDCSTAT32, FDGETFDCSTAT },
- { FDWERRORGET32, FDWERRORGET }
-};
-
-#define NR_FD_IOCTL_TRANS ARRAY_SIZE(fd_ioctl_trans_table)
-
-static int compat_fd_ioctl(struct block_device *bdev, fmode_t mode,
- unsigned int cmd, unsigned long arg)
-{
- mm_segment_t old_fs = get_fs();
- void *karg = NULL;
- unsigned int kcmd = 0;
- int i, err;
-
- for (i = 0; i < NR_FD_IOCTL_TRANS; i++)
- if (cmd == fd_ioctl_trans_table[i].cmd32) {
- kcmd = fd_ioctl_trans_table[i].cmd;
- break;
- }
- if (!kcmd)
- return -EINVAL;
-
- switch (cmd) {
- case FDSETPRM32:
- case FDDEFPRM32:
- case FDGETPRM32:
- {
- compat_uptr_t name;
- struct compat_floppy_struct __user *uf;
- struct floppy_struct *f;
-
- uf = compat_ptr(arg);
- f = karg = kmalloc(sizeof(struct floppy_struct), GFP_KERNEL);
- if (!karg)
- return -ENOMEM;
- if (cmd == FDGETPRM32)
- break;
- err = __get_user(f->size, &uf->size);
- err |= __get_user(f->sect, &uf->sect);
- err |= __get_user(f->head, &uf->head);
- err |= __get_user(f->track, &uf->track);
- err |= __get_user(f->stretch, &uf->stretch);
- err |= __get_user(f->gap, &uf->gap);
- err |= __get_user(f->rate, &uf->rate);
- err |= __get_user(f->spec1, &uf->spec1);
- err |= __get_user(f->fmt_gap, &uf->fmt_gap);
- err |= __get_user(name, &uf->name);
- f->name = compat_ptr(name);
- if (err) {
- err = -EFAULT;
- goto out;
- }
- break;
- }
- case FDSETDRVPRM32:
- case FDGETDRVPRM32:
- {
- struct compat_floppy_drive_params __user *uf;
- struct floppy_drive_params *f;
-
- uf = compat_ptr(arg);
- f = karg = kmalloc(sizeof(struct floppy_drive_params), GFP_KERNEL);
- if (!karg)
- return -ENOMEM;
- if (cmd == FDGETDRVPRM32)
- break;
- err = __get_user(f->cmos, &uf->cmos);
- err |= __get_user(f->max_dtr, &uf->max_dtr);
- err |= __get_user(f->hlt, &uf->hlt);
- err |= __get_user(f->hut, &uf->hut);
- err |= __get_user(f->srt, &uf->srt);
- err |= __get_user(f->spinup, &uf->spinup);
- err |= __get_user(f->spindown, &uf->spindown);
- err |= __get_user(f->spindown_offset, &uf->spindown_offset);
- err |= __get_user(f->select_delay, &uf->select_delay);
- err |= __get_user(f->rps, &uf->rps);
- err |= __get_user(f->tracks, &uf->tracks);
- err |= __get_user(f->timeout, &uf->timeout);
- err |= __get_user(f->interleave_sect, &uf->interleave_sect);
- err |= __copy_from_user(&f->max_errors, &uf->max_errors, sizeof(f->max_errors));
- err |= __get_user(f->flags, &uf->flags);
- err |= __get_user(f->read_track, &uf->read_track);
- err |= __copy_from_user(f->autodetect, uf->autodetect, sizeof(f->autodetect));
- err |= __get_user(f->checkfreq, &uf->checkfreq);
- err |= __get_user(f->native_format, &uf->native_format);
- if (err) {
- err = -EFAULT;
- goto out;
- }
- break;
- }
- case FDGETDRVSTAT32:
- case FDPOLLDRVSTAT32:
- karg = kmalloc(sizeof(struct floppy_drive_struct), GFP_KERNEL);
- if (!karg)
- return -ENOMEM;
- break;
- case FDGETFDCSTAT32:
- karg = kmalloc(sizeof(struct floppy_fdc_state), GFP_KERNEL);
- if (!karg)
- return -ENOMEM;
- break;
- case FDWERRORGET32:
- karg = kmalloc(sizeof(struct floppy_write_errors), GFP_KERNEL);
- if (!karg)
- return -ENOMEM;
- break;
- default:
- return -EINVAL;
- }
- set_fs(KERNEL_DS);
- err = __blkdev_driver_ioctl(bdev, mode, kcmd, (unsigned long)karg);
- set_fs(old_fs);
- if (err)
- goto out;
- switch (cmd) {
- case FDGETPRM32:
- {
- struct floppy_struct *f = karg;
- struct compat_floppy_struct __user *uf = compat_ptr(arg);
-
- err = __put_user(f->size, &uf->size);
- err |= __put_user(f->sect, &uf->sect);
- err |= __put_user(f->head, &uf->head);
- err |= __put_user(f->track, &uf->track);
- err |= __put_user(f->stretch, &uf->stretch);
- err |= __put_user(f->gap, &uf->gap);
- err |= __put_user(f->rate, &uf->rate);
- err |= __put_user(f->spec1, &uf->spec1);
- err |= __put_user(f->fmt_gap, &uf->fmt_gap);
- err |= __put_user((u64)f->name, (compat_caddr_t __user *)&uf->name);
- break;
- }
- case FDGETDRVPRM32:
- {
- struct compat_floppy_drive_params __user *uf;
- struct floppy_drive_params *f = karg;
-
- uf = compat_ptr(arg);
- err = __put_user(f->cmos, &uf->cmos);
- err |= __put_user(f->max_dtr, &uf->max_dtr);
- err |= __put_user(f->hlt, &uf->hlt);
- err |= __put_user(f->hut, &uf->hut);
- err |= __put_user(f->srt, &uf->srt);
- err |= __put_user(f->spinup, &uf->spinup);
- err |= __put_user(f->spindown, &uf->spindown);
- err |= __put_user(f->spindown_offset, &uf->spindown_offset);
- err |= __put_user(f->select_delay, &uf->select_delay);
- err |= __put_user(f->rps, &uf->rps);
- err |= __put_user(f->tracks, &uf->tracks);
- err |= __put_user(f->timeout, &uf->timeout);
- err |= __put_user(f->interleave_sect, &uf->interleave_sect);
- err |= __copy_to_user(&uf->max_errors, &f->max_errors, sizeof(f->max_errors));
- err |= __put_user(f->flags, &uf->flags);
- err |= __put_user(f->read_track, &uf->read_track);
- err |= __copy_to_user(uf->autodetect, f->autodetect, sizeof(f->autodetect));
- err |= __put_user(f->checkfreq, &uf->checkfreq);
- err |= __put_user(f->native_format, &uf->native_format);
- break;
- }
- case FDGETDRVSTAT32:
- case FDPOLLDRVSTAT32:
- {
- struct compat_floppy_drive_struct __user *uf;
- struct floppy_drive_struct *f = karg;
-
- uf = compat_ptr(arg);
- err = __put_user(f->flags, &uf->flags);
- err |= __put_user(f->spinup_date, &uf->spinup_date);
- err |= __put_user(f->select_date, &uf->select_date);
- err |= __put_user(f->first_read_date, &uf->first_read_date);
- err |= __put_user(f->probed_format, &uf->probed_format);
- err |= __put_user(f->track, &uf->track);
- err |= __put_user(f->maxblock, &uf->maxblock);
- err |= __put_user(f->maxtrack, &uf->maxtrack);
- err |= __put_user(f->generation, &uf->generation);
- err |= __put_user(f->keep_data, &uf->keep_data);
- err |= __put_user(f->fd_ref, &uf->fd_ref);
- err |= __put_user(f->fd_device, &uf->fd_device);
- err |= __put_user(f->last_checked, &uf->last_checked);
- err |= __put_user((u64)f->dmabuf, &uf->dmabuf);
- err |= __put_user((u64)f->bufblocks, &uf->bufblocks);
- break;
- }
- case FDGETFDCSTAT32:
- {
- struct compat_floppy_fdc_state __user *uf;
- struct floppy_fdc_state *f = karg;
-
- uf = compat_ptr(arg);
- err = __put_user(f->spec1, &uf->spec1);
- err |= __put_user(f->spec2, &uf->spec2);
- err |= __put_user(f->dtr, &uf->dtr);
- err |= __put_user(f->version, &uf->version);
- err |= __put_user(f->dor, &uf->dor);
- err |= __put_user(f->address, &uf->address);
- err |= __copy_to_user((char __user *)&uf->address + sizeof(uf->address),
- (char *)&f->address + sizeof(f->address), sizeof(int));
- err |= __put_user(f->driver_version, &uf->driver_version);
- err |= __copy_to_user(uf->track, f->track, sizeof(f->track));
- break;
- }
- case FDWERRORGET32:
- {
- struct compat_floppy_write_errors __user *uf;
- struct floppy_write_errors *f = karg;
-
- uf = compat_ptr(arg);
- err = __put_user(f->write_errors, &uf->write_errors);
- err |= __put_user(f->first_error_sector, &uf->first_error_sector);
- err |= __put_user(f->first_error_generation, &uf->first_error_generation);
- err |= __put_user(f->last_error_sector, &uf->last_error_sector);
- err |= __put_user(f->last_error_generation, &uf->last_error_generation);
- err |= __put_user(f->badness, &uf->badness);
- break;
- }
- default:
- break;
- }
- if (err)
- err = -EFAULT;
-
-out:
- kfree(karg);
- return err;
-}
-
static int compat_blkdev_driver_ioctl(struct block_device *bdev, fmode_t mode,
unsigned cmd, unsigned long arg)
{
@@ -537,16 +221,6 @@ static int compat_blkdev_driver_ioctl(struct block_device *bdev, fmode_t mode,
case HDIO_GET_ADDRESS:
case HDIO_GET_BUSSTATE:
return compat_hdio_ioctl(bdev, mode, cmd, arg);
- case FDSETPRM32:
- case FDDEFPRM32:
- case FDGETPRM32:
- case FDSETDRVPRM32:
- case FDGETDRVPRM32:
- case FDGETDRVSTAT32:
- case FDPOLLDRVSTAT32:
- case FDGETFDCSTAT32:
- case FDWERRORGET32:
- return compat_fd_ioctl(bdev, mode, cmd, arg);
case CDROMREADAUDIO:
return compat_cdrom_read_audio(bdev, mode, cmd, arg);
case CDROM_SEND_PACKET:
@@ -566,23 +240,6 @@ static int compat_blkdev_driver_ioctl(struct block_device *bdev, fmode_t mode,
case HDIO_DRIVE_CMD:
/* 0x330 is reserved -- it used to be HDIO_GETGEO_BIG */
case 0x330:
- /* 0x02 -- Floppy ioctls */
- case FDMSGON:
- case FDMSGOFF:
- case FDSETEMSGTRESH:
- case FDFLUSH:
- case FDWERRORCLR:
- case FDSETMAXERRS:
- case FDGETMAXERRS:
- case FDGETDRVTYP:
- case FDEJECT:
- case FDCLRPRM:
- case FDFMTBEG:
- case FDFMTEND:
- case FDRESET:
- case FDTWADDLE:
- case FDFMTTRK:
- case FDRAWCMD:
/* CDROM stuff */
case CDROMPAUSE:
case CDROMRESUME:
diff --git a/block/deadline-iosched.c b/block/deadline-iosched.c
index c68f6bbc0dcd..b83f77460d28 100644
--- a/block/deadline-iosched.c
+++ b/block/deadline-iosched.c
@@ -373,13 +373,12 @@ deadline_var_show(int var, char *page)
return sprintf(page, "%d\n", var);
}
-static ssize_t
-deadline_var_store(int *var, const char *page, size_t count)
+static void
+deadline_var_store(int *var, const char *page)
{
char *p = (char *) page;
*var = simple_strtol(p, &p, 10);
- return count;
}
#define SHOW_FUNCTION(__FUNC, __VAR, __CONV) \
@@ -403,7 +402,7 @@ static ssize_t __FUNC(struct elevator_queue *e, const char *page, size_t count)
{ \
struct deadline_data *dd = e->elevator_data; \
int __data; \
- int ret = deadline_var_store(&__data, (page), count); \
+ deadline_var_store(&__data, (page)); \
if (__data < (MIN)) \
__data = (MIN); \
else if (__data > (MAX)) \
@@ -412,7 +411,7 @@ static ssize_t __FUNC(struct elevator_queue *e, const char *page, size_t count)
*(__PTR) = msecs_to_jiffies(__data); \
else \
*(__PTR) = __data; \
- return ret; \
+ return count; \
}
STORE_FUNCTION(deadline_read_expire_store, &dd->fifo_expire[READ], 0, INT_MAX, 1);
STORE_FUNCTION(deadline_write_expire_store, &dd->fifo_expire[WRITE], 0, INT_MAX, 1);
diff --git a/block/elevator.c b/block/elevator.c
index dac99fbfc273..153926a90901 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -681,6 +681,7 @@ void __elv_add_request(struct request_queue *q, struct request *rq, int where)
*/
if (elv_attempt_insert_merge(q, rq))
break;
+ /* fall through */
case ELEVATOR_INSERT_SORT:
BUG_ON(blk_rq_is_passthrough(rq));
rq->rq_flags |= RQF_SORTED;
@@ -1054,6 +1055,10 @@ static int __elevator_change(struct request_queue *q, const char *name)
char elevator_name[ELV_NAME_MAX];
struct elevator_type *e;
+ /* Make sure queue is not in the middle of being removed */
+ if (!test_bit(QUEUE_FLAG_REGISTERED, &q->queue_flags))
+ return -ENOENT;
+
/*
* Special case for mq, turn off scheduling
*/
diff --git a/block/genhd.c b/block/genhd.c
index d252d29fe837..dd305c65ffb0 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -36,7 +36,7 @@ struct kobject *block_depr;
static DEFINE_SPINLOCK(ext_devt_lock);
static DEFINE_IDR(ext_devt_idr);
-static struct device_type disk_type;
+static const struct device_type disk_type;
static void disk_check_events(struct disk_events *ev,
unsigned int *clearing_ptr);
@@ -45,6 +45,52 @@ static void disk_add_events(struct gendisk *disk);
static void disk_del_events(struct gendisk *disk);
static void disk_release_events(struct gendisk *disk);
+void part_inc_in_flight(struct request_queue *q, struct hd_struct *part, int rw)
+{
+ if (q->mq_ops)
+ return;
+
+ atomic_inc(&part->in_flight[rw]);
+ if (part->partno)
+ atomic_inc(&part_to_disk(part)->part0.in_flight[rw]);
+}
+
+void part_dec_in_flight(struct request_queue *q, struct hd_struct *part, int rw)
+{
+ if (q->mq_ops)
+ return;
+
+ atomic_dec(&part->in_flight[rw]);
+ if (part->partno)
+ atomic_dec(&part_to_disk(part)->part0.in_flight[rw]);
+}
+
+void part_in_flight(struct request_queue *q, struct hd_struct *part,
+ unsigned int inflight[2])
+{
+ if (q->mq_ops) {
+ blk_mq_in_flight(q, part, inflight);
+ return;
+ }
+
+ inflight[0] = atomic_read(&part->in_flight[0]) +
+ atomic_read(&part->in_flight[1]);
+ if (part->partno) {
+ part = &part_to_disk(part)->part0;
+ inflight[1] = atomic_read(&part->in_flight[0]) +
+ atomic_read(&part->in_flight[1]);
+ }
+}
+
+struct hd_struct *__disk_get_part(struct gendisk *disk, int partno)
+{
+ struct disk_part_tbl *ptbl = rcu_dereference(disk->part_tbl);
+
+ if (unlikely(partno < 0 || partno >= ptbl->len))
+ return NULL;
+ return rcu_dereference(ptbl->part[partno]);
+}
+
/**
* disk_get_part - get partition
* @disk: disk to look partition from
@@ -61,21 +107,12 @@ static void disk_release_events(struct gendisk *disk);
*/
struct hd_struct *disk_get_part(struct gendisk *disk, int partno)
{
- struct hd_struct *part = NULL;
- struct disk_part_tbl *ptbl;
-
- if (unlikely(partno < 0))
- return NULL;
+ struct hd_struct *part;
rcu_read_lock();
-
- ptbl = rcu_dereference(disk->part_tbl);
- if (likely(partno < ptbl->len)) {
- part = rcu_dereference(ptbl->part[partno]);
- if (part)
- get_device(part_to_dev(part));
- }
-
+ part = __disk_get_part(disk, partno);
+ if (part)
+ get_device(part_to_dev(part));
rcu_read_unlock();
return part;
@@ -242,6 +279,7 @@ EXPORT_SYMBOL_GPL(disk_map_sector_rcu);
* Can be deleted altogether. Later.
*
*/
+#define BLKDEV_MAJOR_HASH_SIZE 255
static struct blk_major_name {
struct blk_major_name *next;
int major;
@@ -259,12 +297,11 @@ void blkdev_show(struct seq_file *seqf, off_t offset)
{
struct blk_major_name *dp;
- if (offset < BLKDEV_MAJOR_HASH_SIZE) {
- mutex_lock(&block_class_lock);
- for (dp = major_names[offset]; dp; dp = dp->next)
+ mutex_lock(&block_class_lock);
+ for (dp = major_names[major_to_index(offset)]; dp; dp = dp->next)
+ if (dp->major == offset)
seq_printf(seqf, "%3d %s\n", dp->major, dp->name);
- mutex_unlock(&block_class_lock);
- }
+ mutex_unlock(&block_class_lock);
}
#endif /* CONFIG_PROC_FS */
@@ -309,6 +346,14 @@ int register_blkdev(unsigned int major, const char *name)
ret = major;
}
+ if (major >= BLKDEV_MAJOR_MAX) {
+ pr_err("register_blkdev: major requested (%d) is greater than the maximum (%d) for %s\n",
+ major, BLKDEV_MAJOR_MAX, name);
+
+ ret = -EINVAL;
+ goto out;
+ }
+
p = kmalloc(sizeof(struct blk_major_name), GFP_KERNEL);
if (p == NULL) {
ret = -ENOMEM;
@@ -1090,12 +1135,13 @@ static const struct attribute_group *disk_attr_groups[] = {
* original ptbl is freed using RCU callback.
*
* LOCKING:
- * Matching bd_mutx locked.
+ * Matching bd_mutex locked or the caller is the only user of @disk.
*/
static void disk_replace_part_tbl(struct gendisk *disk,
struct disk_part_tbl *new_ptbl)
{
- struct disk_part_tbl *old_ptbl = disk->part_tbl;
+ struct disk_part_tbl *old_ptbl =
+ rcu_dereference_protected(disk->part_tbl, 1);
rcu_assign_pointer(disk->part_tbl, new_ptbl);
@@ -1114,14 +1160,16 @@ static void disk_replace_part_tbl(struct gendisk *disk,
* uses RCU to allow unlocked dereferencing for stats and other stuff.
*
* LOCKING:
- * Matching bd_mutex locked, might sleep.
+ * Matching bd_mutex locked or the caller is the only user of @disk.
+ * Might sleep.
*
* RETURNS:
* 0 on success, -errno on failure.
*/
int disk_expand_part_tbl(struct gendisk *disk, int partno)
{
- struct disk_part_tbl *old_ptbl = disk->part_tbl;
+ struct disk_part_tbl *old_ptbl =
+ rcu_dereference_protected(disk->part_tbl, 1);
struct disk_part_tbl *new_ptbl;
int len = old_ptbl ? old_ptbl->len : 0;
int i, target;
@@ -1183,7 +1231,7 @@ static char *block_devnode(struct device *dev, umode_t *mode,
return NULL;
}
-static struct device_type disk_type = {
+static const struct device_type disk_type = {
.name = "disk",
.groups = disk_attr_groups,
.release = disk_release,
@@ -1204,6 +1252,7 @@ static int diskstats_show(struct seq_file *seqf, void *v)
struct disk_part_iter piter;
struct hd_struct *hd;
char buf[BDEVNAME_SIZE];
+ unsigned int inflight[2];
int cpu;
/*
@@ -1217,8 +1266,9 @@ static int diskstats_show(struct seq_file *seqf, void *v)
disk_part_iter_init(&piter, gp, DISK_PITER_INCL_EMPTY_PART0);
while ((hd = disk_part_iter_next(&piter))) {
cpu = part_stat_lock();
- part_round_stats(cpu, hd);
+ part_round_stats(gp->queue, cpu, hd);
part_stat_unlock();
+ part_in_flight(gp->queue, hd, inflight);
seq_printf(seqf, "%4d %7d %s %lu %lu %lu "
"%u %lu %lu %lu %u %u %u %u\n",
MAJOR(part_devt(hd)), MINOR(part_devt(hd)),
@@ -1231,7 +1281,7 @@ static int diskstats_show(struct seq_file *seqf, void *v)
part_stat_read(hd, merges[WRITE]),
part_stat_read(hd, sectors[WRITE]),
jiffies_to_msecs(part_stat_read(hd, ticks[WRITE])),
- part_in_flight(hd),
+ inflight[0],
jiffies_to_msecs(part_stat_read(hd, io_ticks)),
jiffies_to_msecs(part_stat_read(hd, time_in_queue))
);
@@ -1313,6 +1363,14 @@ EXPORT_SYMBOL(alloc_disk);
struct gendisk *alloc_disk_node(int minors, int node_id)
{
struct gendisk *disk;
+ struct disk_part_tbl *ptbl;
+
+ if (minors > DISK_MAX_PARTS) {
+ printk(KERN_ERR
+ "block: can't allocated more than %d partitions\n",
+ DISK_MAX_PARTS);
+ minors = DISK_MAX_PARTS;
+ }
disk = kzalloc_node(sizeof(struct gendisk), GFP_KERNEL, node_id);
if (disk) {
@@ -1326,7 +1384,8 @@ struct gendisk *alloc_disk_node(int minors, int node_id)
kfree(disk);
return NULL;
}
- disk->part_tbl->part[0] = &disk->part0;
+ ptbl = rcu_dereference_protected(disk->part_tbl, 1);
+ rcu_assign_pointer(ptbl->part[0], &disk->part0);
/*
* set_capacity() and get_capacity() currently don't use
diff --git a/block/ioprio.c b/block/ioprio.c
index 4b120c9cf7e8..6f5d0b6625e3 100644
--- a/block/ioprio.c
+++ b/block/ioprio.c
@@ -75,7 +75,8 @@ SYSCALL_DEFINE3(ioprio_set, int, which, int, who, int, ioprio)
case IOPRIO_CLASS_RT:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- /* fall through, rt has prio field too */
+ /* fall through */
+ /* rt has prio field too */
case IOPRIO_CLASS_BE:
if (data >= IOPRIO_BE_NR || data < 0)
return -EINVAL;
diff --git a/block/kyber-iosched.c b/block/kyber-iosched.c
index b9faabc75fdb..f58cab82105b 100644
--- a/block/kyber-iosched.c
+++ b/block/kyber-iosched.c
@@ -99,7 +99,7 @@ struct kyber_hctx_data {
struct list_head rqs[KYBER_NUM_DOMAINS];
unsigned int cur_domain;
unsigned int batching;
- wait_queue_t domain_wait[KYBER_NUM_DOMAINS];
+ wait_queue_entry_t domain_wait[KYBER_NUM_DOMAINS];
atomic_t wait_index[KYBER_NUM_DOMAINS];
};
@@ -385,7 +385,7 @@ static int kyber_init_hctx(struct blk_mq_hw_ctx *hctx, unsigned int hctx_idx)
for (i = 0; i < KYBER_NUM_DOMAINS; i++) {
INIT_LIST_HEAD(&khd->rqs[i]);
- INIT_LIST_HEAD(&khd->domain_wait[i].task_list);
+ INIT_LIST_HEAD(&khd->domain_wait[i].entry);
atomic_set(&khd->wait_index[i], 0);
}
@@ -426,33 +426,29 @@ static void rq_clear_domain_token(struct kyber_queue_data *kqd,
}
}
-static struct request *kyber_get_request(struct request_queue *q,
- unsigned int op,
- struct blk_mq_alloc_data *data)
+static void kyber_limit_depth(unsigned int op, struct blk_mq_alloc_data *data)
{
- struct kyber_queue_data *kqd = q->elevator->elevator_data;
- struct request *rq;
-
/*
* We use the scheduler tags as per-hardware queue queueing tokens.
* Async requests can be limited at this stage.
*/
- if (!op_is_sync(op))
+ if (!op_is_sync(op)) {
+ struct kyber_queue_data *kqd = data->q->elevator->elevator_data;
+
data->shallow_depth = kqd->async_depth;
+ }
+}
- rq = __blk_mq_alloc_request(data, op);
- if (rq)
- rq_set_domain_token(rq, -1);
- return rq;
+static void kyber_prepare_request(struct request *rq, struct bio *bio)
+{
+ rq_set_domain_token(rq, -1);
}
-static void kyber_put_request(struct request *rq)
+static void kyber_finish_request(struct request *rq)
{
- struct request_queue *q = rq->q;
- struct kyber_queue_data *kqd = q->elevator->elevator_data;
+ struct kyber_queue_data *kqd = rq->q->elevator->elevator_data;
rq_clear_domain_token(kqd, rq);
- blk_mq_finish_request(rq);
}
static void kyber_completed_request(struct request *rq)
@@ -507,12 +503,12 @@ static void kyber_flush_busy_ctxs(struct kyber_hctx_data *khd,
}
}
-static int kyber_domain_wake(wait_queue_t *wait, unsigned mode, int flags,
+static int kyber_domain_wake(wait_queue_entry_t *wait, unsigned mode, int flags,
void *key)
{
struct blk_mq_hw_ctx *hctx = READ_ONCE(wait->private);
- list_del_init(&wait->task_list);
+ list_del_init(&wait->entry);
blk_mq_run_hw_queue(hctx, true);
return 1;
}
@@ -523,7 +519,7 @@ static int kyber_get_domain_token(struct kyber_queue_data *kqd,
{
unsigned int sched_domain = khd->cur_domain;
struct sbitmap_queue *domain_tokens = &kqd->domain_tokens[sched_domain];
- wait_queue_t *wait = &khd->domain_wait[sched_domain];
+ wait_queue_entry_t *wait = &khd->domain_wait[sched_domain];
struct sbq_wait_state *ws;
int nr;
@@ -536,7 +532,7 @@ static int kyber_get_domain_token(struct kyber_queue_data *kqd,
* run when one becomes available. Note that this is serialized on
* khd->lock, but we still need to be careful about the waker.
*/
- if (list_empty_careful(&wait->task_list)) {
+ if (list_empty_careful(&wait->entry)) {
init_waitqueue_func_entry(wait, kyber_domain_wake);
wait->private = hctx;
ws = sbq_wait_ptr(domain_tokens,
@@ -734,9 +730,9 @@ static int kyber_##name##_waiting_show(void *data, struct seq_file *m) \
{ \
struct blk_mq_hw_ctx *hctx = data; \
struct kyber_hctx_data *khd = hctx->sched_data; \
- wait_queue_t *wait = &khd->domain_wait[domain]; \
+ wait_queue_entry_t *wait = &khd->domain_wait[domain]; \
\
- seq_printf(m, "%d\n", !list_empty_careful(&wait->task_list)); \
+ seq_printf(m, "%d\n", !list_empty_careful(&wait->entry)); \
return 0; \
}
KYBER_DEBUGFS_DOMAIN_ATTRS(KYBER_READ, read)
@@ -815,8 +811,9 @@ static struct elevator_type kyber_sched = {
.exit_sched = kyber_exit_sched,
.init_hctx = kyber_init_hctx,
.exit_hctx = kyber_exit_hctx,
- .get_request = kyber_get_request,
- .put_request = kyber_put_request,
+ .limit_depth = kyber_limit_depth,
+ .prepare_request = kyber_prepare_request,
+ .finish_request = kyber_finish_request,
.completed_request = kyber_completed_request,
.dispatch_request = kyber_dispatch_request,
.has_work = kyber_has_work,
diff --git a/block/mq-deadline.c b/block/mq-deadline.c
index 1b964a387afe..a1cad4331edd 100644
--- a/block/mq-deadline.c
+++ b/block/mq-deadline.c
@@ -457,13 +457,12 @@ deadline_var_show(int var, char *page)
return sprintf(page, "%d\n", var);
}
-static ssize_t
-deadline_var_store(int *var, const char *page, size_t count)
+static void
+deadline_var_store(int *var, const char *page)
{
char *p = (char *) page;
*var = simple_strtol(p, &p, 10);
- return count;
}
#define SHOW_FUNCTION(__FUNC, __VAR, __CONV) \
@@ -487,7 +486,7 @@ static ssize_t __FUNC(struct elevator_queue *e, const char *page, size_t count)
{ \
struct deadline_data *dd = e->elevator_data; \
int __data; \
- int ret = deadline_var_store(&__data, (page), count); \
+ deadline_var_store(&__data, (page)); \
if (__data < (MIN)) \
__data = (MIN); \
else if (__data > (MAX)) \
@@ -496,7 +495,7 @@ static ssize_t __FUNC(struct elevator_queue *e, const char *page, size_t count)
*(__PTR) = msecs_to_jiffies(__data); \
else \
*(__PTR) = __data; \
- return ret; \
+ return count; \
}
STORE_FUNCTION(deadline_read_expire_store, &dd->fifo_expire[READ], 0, INT_MAX, 1);
STORE_FUNCTION(deadline_write_expire_store, &dd->fifo_expire[WRITE], 0, INT_MAX, 1);
@@ -660,6 +659,7 @@ static struct elevator_type mq_deadline = {
.elevator_name = "mq-deadline",
.elevator_owner = THIS_MODULE,
};
+MODULE_ALIAS("mq-deadline-iosched");
static int __init deadline_init(void)
{
diff --git a/block/opal_proto.h b/block/opal_proto.h
index f40c9acf8895..e20be8258854 100644
--- a/block/opal_proto.h
+++ b/block/opal_proto.h
@@ -46,6 +46,7 @@ enum opal_response_token {
#define GENERIC_HOST_SESSION_NUM 0x41
#define TPER_SYNC_SUPPORTED 0x01
+#define MBR_ENABLED_MASK 0x10
#define TINY_ATOM_DATA_MASK 0x3F
#define TINY_ATOM_SIGNED 0x40
diff --git a/block/partition-generic.c b/block/partition-generic.c
index c5ec8246e25e..88c555db4e5d 100644
--- a/block/partition-generic.c
+++ b/block/partition-generic.c
@@ -112,11 +112,14 @@ ssize_t part_stat_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct hd_struct *p = dev_to_part(dev);
+ struct request_queue *q = part_to_disk(p)->queue;
+ unsigned int inflight[2];
int cpu;
cpu = part_stat_lock();
- part_round_stats(cpu, p);
+ part_round_stats(q, cpu, p);
part_stat_unlock();
+ part_in_flight(q, p, inflight);
return sprintf(buf,
"%8lu %8lu %8llu %8u "
"%8lu %8lu %8llu %8u "
@@ -130,7 +133,7 @@ ssize_t part_stat_show(struct device *dev,
part_stat_read(p, merges[WRITE]),
(unsigned long long)part_stat_read(p, sectors[WRITE]),
jiffies_to_msecs(part_stat_read(p, ticks[WRITE])),
- part_in_flight(p),
+ inflight[0],
jiffies_to_msecs(part_stat_read(p, io_ticks)),
jiffies_to_msecs(part_stat_read(p, time_in_queue)));
}
@@ -249,15 +252,20 @@ void __delete_partition(struct percpu_ref *ref)
call_rcu(&part->rcu_head, delete_partition_rcu_cb);
}
+/*
+ * Must be called either with bd_mutex held, before a disk can be opened or
+ * after all disk users are gone.
+ */
void delete_partition(struct gendisk *disk, int partno)
{
- struct disk_part_tbl *ptbl = disk->part_tbl;
+ struct disk_part_tbl *ptbl =
+ rcu_dereference_protected(disk->part_tbl, 1);
struct hd_struct *part;
if (partno >= ptbl->len)
return;
- part = ptbl->part[partno];
+ part = rcu_dereference_protected(ptbl->part[partno], 1);
if (!part)
return;
@@ -277,6 +285,10 @@ static ssize_t whole_disk_show(struct device *dev,
static DEVICE_ATTR(whole_disk, S_IRUSR | S_IRGRP | S_IROTH,
whole_disk_show, NULL);
+/*
+ * Must be called either with bd_mutex held, before a disk can be opened or
+ * after all disk users are gone.
+ */
struct hd_struct *add_partition(struct gendisk *disk, int partno,
sector_t start, sector_t len, int flags,
struct partition_meta_info *info)
@@ -292,7 +304,7 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
err = disk_expand_part_tbl(disk, partno);
if (err)
return ERR_PTR(err);
- ptbl = disk->part_tbl;
+ ptbl = rcu_dereference_protected(disk->part_tbl, 1);
if (ptbl->part[partno])
return ERR_PTR(-EBUSY);
@@ -391,7 +403,6 @@ out_del:
device_del(pdev);
out_put:
put_device(pdev);
- blk_free_devt(devt);
return ERR_PTR(err);
}
diff --git a/block/partitions/ldm.c b/block/partitions/ldm.c
index edcea70674c9..2a365c756648 100644
--- a/block/partitions/ldm.c
+++ b/block/partitions/ldm.c
@@ -115,7 +115,7 @@ static bool ldm_parse_privhead(const u8 *data, struct privhead *ph)
ldm_error("PRIVHEAD disk size doesn't match real disk size");
return false;
}
- if (uuid_be_to_bin(data + 0x0030, (uuid_be *)ph->disk_id)) {
+ if (uuid_parse(data + 0x0030, &ph->disk_id)) {
ldm_error("PRIVHEAD contains an invalid GUID.");
return false;
}
@@ -234,7 +234,7 @@ static bool ldm_compare_privheads (const struct privhead *ph1,
(ph1->logical_disk_size == ph2->logical_disk_size) &&
(ph1->config_start == ph2->config_start) &&
(ph1->config_size == ph2->config_size) &&
- !memcmp (ph1->disk_id, ph2->disk_id, GUID_SIZE));
+ uuid_equal(&ph1->disk_id, &ph2->disk_id));
}
/**
@@ -557,7 +557,7 @@ static struct vblk * ldm_get_disk_objid (const struct ldmdb *ldb)
list_for_each (item, &ldb->v_disk) {
struct vblk *v = list_entry (item, struct vblk, list);
- if (!memcmp (v->vblk.disk.disk_id, ldb->ph.disk_id, GUID_SIZE))
+ if (uuid_equal(&v->vblk.disk.disk_id, &ldb->ph.disk_id))
return v;
}
@@ -892,7 +892,7 @@ static bool ldm_parse_dsk3 (const u8 *buffer, int buflen, struct vblk *vb)
disk = &vb->vblk.disk;
ldm_get_vstr (buffer + 0x18 + r_diskid, disk->alt_name,
sizeof (disk->alt_name));
- if (uuid_be_to_bin(buffer + 0x19 + r_name, (uuid_be *)disk->disk_id))
+ if (uuid_parse(buffer + 0x19 + r_name, &disk->disk_id))
return false;
return true;
@@ -927,7 +927,7 @@ static bool ldm_parse_dsk4 (const u8 *buffer, int buflen, struct vblk *vb)
return false;
disk = &vb->vblk.disk;
- memcpy (disk->disk_id, buffer + 0x18 + r_name, GUID_SIZE);
+ uuid_copy(&disk->disk_id, (uuid_t *)(buffer + 0x18 + r_name));
return true;
}
diff --git a/block/partitions/ldm.h b/block/partitions/ldm.h
index 374242c0971a..f4c6055df956 100644
--- a/block/partitions/ldm.h
+++ b/block/partitions/ldm.h
@@ -112,8 +112,6 @@ struct frag { /* VBLK Fragment handling */
/* In memory LDM database structures. */
-#define GUID_SIZE 16
-
struct privhead { /* Offsets and sizes are in sectors. */
u16 ver_major;
u16 ver_minor;
@@ -121,7 +119,7 @@ struct privhead { /* Offsets and sizes are in sectors. */
u64 logical_disk_size;
u64 config_start;
u64 config_size;
- u8 disk_id[GUID_SIZE];
+ uuid_t disk_id;
};
struct tocblock { /* We have exactly two bitmaps. */
@@ -154,7 +152,7 @@ struct vblk_dgrp { /* VBLK Disk Group */
};
struct vblk_disk { /* VBLK Disk */
- u8 disk_id[GUID_SIZE];
+ uuid_t disk_id;
u8 alt_name[128];
};
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 4a294a5f7fab..7440de44dd85 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -326,7 +326,6 @@ static int sg_io(struct request_queue *q, struct gendisk *bd_disk,
if (IS_ERR(rq))
return PTR_ERR(rq);
req = scsi_req(rq);
- scsi_req_init(rq);
if (hdr->cmd_len > BLK_MAX_CDB) {
req->cmd = kzalloc(hdr->cmd_len, GFP_KERNEL);
@@ -456,7 +455,6 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,
goto error_free_buffer;
}
req = scsi_req(rq);
- scsi_req_init(rq);
cmdlen = COMMAND_SIZE(opcode);
@@ -542,7 +540,6 @@ static int __blk_send_generic(struct request_queue *q, struct gendisk *bd_disk,
rq = blk_get_request(q, REQ_OP_SCSI_OUT, __GFP_RECLAIM);
if (IS_ERR(rq))
return PTR_ERR(rq);
- scsi_req_init(rq);
rq->timeout = BLK_DEFAULT_SG_TIMEOUT;
scsi_req(rq)->cmd[0] = cmd;
scsi_req(rq)->cmd[4] = data;
@@ -744,10 +741,14 @@ int scsi_cmd_blk_ioctl(struct block_device *bd, fmode_t mode,
}
EXPORT_SYMBOL(scsi_cmd_blk_ioctl);
-void scsi_req_init(struct request *rq)
+/**
+ * scsi_req_init - initialize certain fields of a scsi_request structure
+ * @req: Pointer to a scsi_request structure.
+ * Initializes .__cmd[], .cmd, .cmd_len and .sense_len but no other members
+ * of struct scsi_request.
+ */
+void scsi_req_init(struct scsi_request *req)
{
- struct scsi_request *req = scsi_req(rq);
-
memset(req->__cmd, 0, sizeof(req->__cmd));
req->cmd = req->__cmd;
req->cmd_len = BLK_MAX_CDB;
diff --git a/block/sed-opal.c b/block/sed-opal.c
index 9b30ae5ab843..9ed51d0c6b1d 100644
--- a/block/sed-opal.c
+++ b/block/sed-opal.c
@@ -80,6 +80,7 @@ struct parsed_resp {
struct opal_dev {
bool supported;
+ bool mbr_enabled;
void *data;
sec_send_recv *send_recv;
@@ -283,6 +284,14 @@ static bool check_tper(const void *data)
return true;
}
+static bool check_mbrenabled(const void *data)
+{
+ const struct d0_locking_features *lfeat = data;
+ u8 sup_feat = lfeat->supported_features;
+
+ return !!(sup_feat & MBR_ENABLED_MASK);
+}
+
static bool check_sum(const void *data)
{
const struct d0_single_user_mode *sum = data;
@@ -417,6 +426,7 @@ static int opal_discovery0_end(struct opal_dev *dev)
u32 hlen = be32_to_cpu(hdr->length);
print_buffer(dev->resp, hlen);
+ dev->mbr_enabled = false;
if (hlen > IO_BUFFER_LENGTH - sizeof(*hdr)) {
pr_debug("Discovery length overflows buffer (%zu+%u)/%u\n",
@@ -442,6 +452,8 @@ static int opal_discovery0_end(struct opal_dev *dev)
check_geometry(dev, body);
break;
case FC_LOCKING:
+ dev->mbr_enabled = check_mbrenabled(body->features);
+ break;
case FC_ENTERPRISE:
case FC_DATASTORE:
/* some ignored properties */
@@ -2190,6 +2202,21 @@ static int __opal_lock_unlock(struct opal_dev *dev,
return next(dev);
}
+static int __opal_set_mbr_done(struct opal_dev *dev, struct opal_key *key)
+{
+ u8 mbr_done_tf = 1;
+ const struct opal_step mbrdone_step [] = {
+ { opal_discovery0, },
+ { start_admin1LSP_opal_session, key },
+ { set_mbr_done, &mbr_done_tf },
+ { end_opal_session, },
+ { NULL, }
+ };
+
+ dev->steps = mbrdone_step;
+ return next(dev);
+}
+
static int opal_lock_unlock(struct opal_dev *dev,
struct opal_lock_unlock *lk_unlk)
{
@@ -2345,6 +2372,11 @@ bool opal_unlock_from_suspend(struct opal_dev *dev)
suspend->unlk.session.sum);
was_failure = true;
}
+ if (dev->mbr_enabled) {
+ ret = __opal_set_mbr_done(dev, &suspend->unlk.session.opal_key);
+ if (ret)
+ pr_debug("Failed to set MBR Done in S3 resume\n");
+ }
}
mutex_unlock(&dev->dev_lock);
return was_failure;
diff --git a/block/t10-pi.c b/block/t10-pi.c
index 680c6d636298..a98db384048f 100644
--- a/block/t10-pi.c
+++ b/block/t10-pi.c
@@ -28,9 +28,6 @@
typedef __be16 (csum_fn) (void *, unsigned int);
-static const __be16 APP_ESCAPE = (__force __be16) 0xffff;
-static const __be32 REF_ESCAPE = (__force __be32) 0xffffffff;
-
static __be16 t10_pi_crc_fn(void *data, unsigned int len)
{
return cpu_to_be16(crc_t10dif(data, len));
@@ -46,8 +43,8 @@ static __be16 t10_pi_ip_fn(void *data, unsigned int len)
* 16 bit app tag, 32 bit reference tag. Type 3 does not define the ref
* tag.
*/
-static int t10_pi_generate(struct blk_integrity_iter *iter, csum_fn *fn,
- unsigned int type)
+static blk_status_t t10_pi_generate(struct blk_integrity_iter *iter,
+ csum_fn *fn, unsigned int type)
{
unsigned int i;
@@ -67,11 +64,11 @@ static int t10_pi_generate(struct blk_integrity_iter *iter, csum_fn *fn,
iter->seed++;
}
- return 0;
+ return BLK_STS_OK;
}
-static int t10_pi_verify(struct blk_integrity_iter *iter, csum_fn *fn,
- unsigned int type)
+static blk_status_t t10_pi_verify(struct blk_integrity_iter *iter,
+ csum_fn *fn, unsigned int type)
{
unsigned int i;
@@ -82,7 +79,7 @@ static int t10_pi_verify(struct blk_integrity_iter *iter, csum_fn *fn,
switch (type) {
case 1:
case 2:
- if (pi->app_tag == APP_ESCAPE)
+ if (pi->app_tag == T10_PI_APP_ESCAPE)
goto next;
if (be32_to_cpu(pi->ref_tag) !=
@@ -91,12 +88,12 @@ static int t10_pi_verify(struct blk_integrity_iter *iter, csum_fn *fn,
"(rcvd %u)\n", iter->disk_name,
(unsigned long long)
iter->seed, be32_to_cpu(pi->ref_tag));
- return -EILSEQ;
+ return BLK_STS_PROTECTION;
}
break;
case 3:
- if (pi->app_tag == APP_ESCAPE &&
- pi->ref_tag == REF_ESCAPE)
+ if (pi->app_tag == T10_PI_APP_ESCAPE &&
+ pi->ref_tag == T10_PI_REF_ESCAPE)
goto next;
break;
}
@@ -108,7 +105,7 @@ static int t10_pi_verify(struct blk_integrity_iter *iter, csum_fn *fn,
"(rcvd %04x, want %04x)\n", iter->disk_name,
(unsigned long long)iter->seed,
be16_to_cpu(pi->guard_tag), be16_to_cpu(csum));
- return -EILSEQ;
+ return BLK_STS_PROTECTION;
}
next:
@@ -117,45 +114,45 @@ next:
iter->seed++;
}
- return 0;
+ return BLK_STS_OK;
}
-static int t10_pi_type1_generate_crc(struct blk_integrity_iter *iter)
+static blk_status_t t10_pi_type1_generate_crc(struct blk_integrity_iter *iter)
{
return t10_pi_generate(iter, t10_pi_crc_fn, 1);
}
-static int t10_pi_type1_generate_ip(struct blk_integrity_iter *iter)
+static blk_status_t t10_pi_type1_generate_ip(struct blk_integrity_iter *iter)
{
return t10_pi_generate(iter, t10_pi_ip_fn, 1);
}
-static int t10_pi_type1_verify_crc(struct blk_integrity_iter *iter)
+static blk_status_t t10_pi_type1_verify_crc(struct blk_integrity_iter *iter)
{
return t10_pi_verify(iter, t10_pi_crc_fn, 1);
}
-static int t10_pi_type1_verify_ip(struct blk_integrity_iter *iter)
+static blk_status_t t10_pi_type1_verify_ip(struct blk_integrity_iter *iter)
{
return t10_pi_verify(iter, t10_pi_ip_fn, 1);
}
-static int t10_pi_type3_generate_crc(struct blk_integrity_iter *iter)
+static blk_status_t t10_pi_type3_generate_crc(struct blk_integrity_iter *iter)
{
return t10_pi_generate(iter, t10_pi_crc_fn, 3);
}
-static int t10_pi_type3_generate_ip(struct blk_integrity_iter *iter)
+static blk_status_t t10_pi_type3_generate_ip(struct blk_integrity_iter *iter)
{
return t10_pi_generate(iter, t10_pi_ip_fn, 3);
}
-static int t10_pi_type3_verify_crc(struct blk_integrity_iter *iter)
+static blk_status_t t10_pi_type3_verify_crc(struct blk_integrity_iter *iter)
{
return t10_pi_verify(iter, t10_pi_crc_fn, 3);
}
-static int t10_pi_type3_verify_ip(struct blk_integrity_iter *iter)
+static blk_status_t t10_pi_type3_verify_ip(struct blk_integrity_iter *iter)
{
return t10_pi_verify(iter, t10_pi_ip_fn, 3);
}
diff --git a/certs/Makefile b/certs/Makefile
index 4119bb376ea1..847361ce14d1 100644
--- a/certs/Makefile
+++ b/certs/Makefile
@@ -26,7 +26,7 @@ quiet_cmd_extract_certs = EXTRACT_CERTS $(patsubst "%",%,$(2))
targets += x509_certificate_list
$(obj)/x509_certificate_list: scripts/extract-cert $(SYSTEM_TRUSTED_KEYS_SRCPREFIX)$(SYSTEM_TRUSTED_KEYS_FILENAME) FORCE
$(call if_changed,extract_certs,$(SYSTEM_TRUSTED_KEYS_SRCPREFIX)$(CONFIG_SYSTEM_TRUSTED_KEYS))
-endif
+endif # CONFIG_SYSTEM_TRUSTED_KEYRING
clean-files := x509_certificate_list .x509.list
@@ -87,7 +87,7 @@ $(obj)/x509.genkey:
@echo >>$@ "keyUsage=digitalSignature"
@echo >>$@ "subjectKeyIdentifier=hash"
@echo >>$@ "authorityKeyIdentifier=keyid"
-endif
+endif # CONFIG_MODULE_SIG_KEY
$(eval $(call config_filename,MODULE_SIG_KEY))
@@ -102,4 +102,4 @@ $(obj)/system_certificates.o: $(obj)/signing_key.x509
targets += signing_key.x509
$(obj)/signing_key.x509: scripts/extract-cert $(X509_DEP) FORCE
$(call if_changed,extract_certs,$(MODULE_SIG_KEY_SRCPREFIX)$(CONFIG_MODULE_SIG_KEY))
-endif
+endif # CONFIG_MODULE_SIG
diff --git a/crypto/Kconfig b/crypto/Kconfig
index aac4bc90a138..0a121f9ddf8e 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -130,6 +130,7 @@ config CRYPTO_DH
config CRYPTO_ECDH
tristate "ECDH algorithm"
select CRYTPO_KPP
+ select CRYPTO_RNG_DEFAULT
help
Generic implementation of the ECDH algorithm
@@ -1752,6 +1753,8 @@ config CRYPTO_USER_API_AEAD
tristate "User-space interface for AEAD cipher algorithms"
depends on NET
select CRYPTO_AEAD
+ select CRYPTO_BLKCIPHER
+ select CRYPTO_NULL
select CRYPTO_USER_API
help
This option enables the user-spaces interface for AEAD
diff --git a/crypto/Makefile b/crypto/Makefile
index 8a44057240d5..d41f0331b085 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -33,10 +33,6 @@ obj-$(CONFIG_CRYPTO_KPP2) += kpp.o
dh_generic-y := dh.o
dh_generic-y += dh_helper.o
obj-$(CONFIG_CRYPTO_DH) += dh_generic.o
-ecdh_generic-y := ecc.o
-ecdh_generic-y += ecdh.o
-ecdh_generic-y += ecdh_helper.o
-obj-$(CONFIG_CRYPTO_ECDH) += ecdh_generic.o
$(obj)/rsapubkey-asn1.o: $(obj)/rsapubkey-asn1.c $(obj)/rsapubkey-asn1.h
$(obj)/rsaprivkey-asn1.o: $(obj)/rsaprivkey-asn1.c $(obj)/rsaprivkey-asn1.h
@@ -138,6 +134,11 @@ obj-$(CONFIG_CRYPTO_USER_API_SKCIPHER) += algif_skcipher.o
obj-$(CONFIG_CRYPTO_USER_API_RNG) += algif_rng.o
obj-$(CONFIG_CRYPTO_USER_API_AEAD) += algif_aead.o
+ecdh_generic-y := ecc.o
+ecdh_generic-y += ecdh.o
+ecdh_generic-y += ecdh_helper.o
+obj-$(CONFIG_CRYPTO_ECDH) += ecdh_generic.o
+
#
# generic algorithms and the async_tx api
#
diff --git a/crypto/aes_ti.c b/crypto/aes_ti.c
index 92644fd1ac19..03023b2290e8 100644
--- a/crypto/aes_ti.c
+++ b/crypto/aes_ti.c
@@ -114,7 +114,7 @@ static u32 mix_columns(u32 x)
* | 0x2 0x3 0x1 0x1 | | x[0] |
* | 0x1 0x2 0x3 0x1 | | x[1] |
* | 0x1 0x1 0x2 0x3 | x | x[2] |
- * | 0x3 0x1 0x1 0x3 | | x[3] |
+ * | 0x3 0x1 0x1 0x2 | | x[3] |
*/
u32 y = mul_by_x(x) ^ ror32(x, 16);
diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index 3556d8eb54a7..337cf382718e 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -21,6 +21,7 @@
#include <linux/module.h>
#include <linux/net.h>
#include <linux/rwsem.h>
+#include <linux/sched/signal.h>
#include <linux/security.h>
struct alg_type_list {
@@ -287,7 +288,7 @@ int af_alg_accept(struct sock *sk, struct socket *newsock, bool kern)
goto unlock;
sock_init_data(newsock, sk2);
- sock_graft(sk2, newsock);
+ security_sock_graft(sk2, newsock);
security_sk_clone(sk, sk2);
err = type->accept(ask->private, sk2);
@@ -507,6 +508,696 @@ void af_alg_complete(struct crypto_async_request *req, int err)
}
EXPORT_SYMBOL_GPL(af_alg_complete);
+/**
+ * af_alg_alloc_tsgl - allocate the TX SGL
+ *
+ * @sk socket of connection to user space
+ * @return: 0 upon success, < 0 upon error
+ */
+int af_alg_alloc_tsgl(struct sock *sk)
+{
+ struct alg_sock *ask = alg_sk(sk);
+ struct af_alg_ctx *ctx = ask->private;
+ struct af_alg_tsgl *sgl;
+ struct scatterlist *sg = NULL;
+
+ sgl = list_entry(ctx->tsgl_list.prev, struct af_alg_tsgl, list);
+ if (!list_empty(&ctx->tsgl_list))
+ sg = sgl->sg;
+
+ if (!sg || sgl->cur >= MAX_SGL_ENTS) {
+ sgl = sock_kmalloc(sk, sizeof(*sgl) +
+ sizeof(sgl->sg[0]) * (MAX_SGL_ENTS + 1),
+ GFP_KERNEL);
+ if (!sgl)
+ return -ENOMEM;
+
+ sg_init_table(sgl->sg, MAX_SGL_ENTS + 1);
+ sgl->cur = 0;
+
+ if (sg)
+ sg_chain(sg, MAX_SGL_ENTS + 1, sgl->sg);
+
+ list_add_tail(&sgl->list, &ctx->tsgl_list);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(af_alg_alloc_tsgl);
+
+/**
+ * aead_count_tsgl - Count number of TX SG entries
+ *
+ * The counting starts from the beginning of the SGL to @bytes. If
+ * an offset is provided, the counting of the SG entries starts at the offset.
+ *
+ * @sk socket of connection to user space
+ * @bytes Count the number of SG entries holding given number of bytes.
+ * @offset Start the counting of SG entries from the given offset.
+ * @return Number of TX SG entries found given the constraints
+ */
+unsigned int af_alg_count_tsgl(struct sock *sk, size_t bytes, size_t offset)
+{
+ struct alg_sock *ask = alg_sk(sk);
+ struct af_alg_ctx *ctx = ask->private;
+ struct af_alg_tsgl *sgl, *tmp;
+ unsigned int i;
+ unsigned int sgl_count = 0;
+
+ if (!bytes)
+ return 0;
+
+ list_for_each_entry_safe(sgl, tmp, &ctx->tsgl_list, list) {
+ struct scatterlist *sg = sgl->sg;
+
+ for (i = 0; i < sgl->cur; i++) {
+ size_t bytes_count;
+
+ /* Skip offset */
+ if (offset >= sg[i].length) {
+ offset -= sg[i].length;
+ bytes -= sg[i].length;
+ continue;
+ }
+
+ bytes_count = sg[i].length - offset;
+
+ offset = 0;
+ sgl_count++;
+
+ /* If we have seen requested number of bytes, stop */
+ if (bytes_count >= bytes)
+ return sgl_count;
+
+ bytes -= bytes_count;
+ }
+ }
+
+ return sgl_count;
+}
+EXPORT_SYMBOL_GPL(af_alg_count_tsgl);
+
+/**
+ * aead_pull_tsgl - Release the specified buffers from TX SGL
+ *
+ * If @dst is non-null, reassign the pages to dst. The caller must release
+ * the pages. If @dst_offset is given only reassign the pages to @dst starting
+ * at the @dst_offset (byte). The caller must ensure that @dst is large
+ * enough (e.g. by using af_alg_count_tsgl with the same offset).
+ *
+ * @sk socket of connection to user space
+ * @used Number of bytes to pull from TX SGL
+ * @dst If non-NULL, buffer is reassigned to dst SGL instead of releasing. The
+ * caller must release the buffers in dst.
+ * @dst_offset Reassign the TX SGL from given offset. All buffers before
+ * reaching the offset is released.
+ */
+void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst,
+ size_t dst_offset)
+{
+ struct alg_sock *ask = alg_sk(sk);
+ struct af_alg_ctx *ctx = ask->private;
+ struct af_alg_tsgl *sgl;
+ struct scatterlist *sg;
+ unsigned int i, j = 0;
+
+ while (!list_empty(&ctx->tsgl_list)) {
+ sgl = list_first_entry(&ctx->tsgl_list, struct af_alg_tsgl,
+ list);
+ sg = sgl->sg;
+
+ for (i = 0; i < sgl->cur; i++) {
+ size_t plen = min_t(size_t, used, sg[i].length);
+ struct page *page = sg_page(sg + i);
+
+ if (!page)
+ continue;
+
+ /*
+ * Assumption: caller created af_alg_count_tsgl(len)
+ * SG entries in dst.
+ */
+ if (dst) {
+ if (dst_offset >= plen) {
+ /* discard page before offset */
+ dst_offset -= plen;
+ } else {
+ /* reassign page to dst after offset */
+ get_page(page);
+ sg_set_page(dst + j, page,
+ plen - dst_offset,
+ sg[i].offset + dst_offset);
+ dst_offset = 0;
+ j++;
+ }
+ }
+
+ sg[i].length -= plen;
+ sg[i].offset += plen;
+
+ used -= plen;
+ ctx->used -= plen;
+
+ if (sg[i].length)
+ return;
+
+ put_page(page);
+ sg_assign_page(sg + i, NULL);
+ }
+
+ list_del(&sgl->list);
+ sock_kfree_s(sk, sgl, sizeof(*sgl) + sizeof(sgl->sg[0]) *
+ (MAX_SGL_ENTS + 1));
+ }
+
+ if (!ctx->used)
+ ctx->merge = 0;
+}
+EXPORT_SYMBOL_GPL(af_alg_pull_tsgl);
+
+/**
+ * af_alg_free_areq_sgls - Release TX and RX SGLs of the request
+ *
+ * @areq Request holding the TX and RX SGL
+ */
+void af_alg_free_areq_sgls(struct af_alg_async_req *areq)
+{
+ struct sock *sk = areq->sk;
+ struct alg_sock *ask = alg_sk(sk);
+ struct af_alg_ctx *ctx = ask->private;
+ struct af_alg_rsgl *rsgl, *tmp;
+ struct scatterlist *tsgl;
+ struct scatterlist *sg;
+ unsigned int i;
+
+ list_for_each_entry_safe(rsgl, tmp, &areq->rsgl_list, list) {
+ ctx->rcvused -= rsgl->sg_num_bytes;
+ af_alg_free_sg(&rsgl->sgl);
+ list_del(&rsgl->list);
+ if (rsgl != &areq->first_rsgl)
+ sock_kfree_s(sk, rsgl, sizeof(*rsgl));
+ }
+
+ tsgl = areq->tsgl;
+ for_each_sg(tsgl, sg, areq->tsgl_entries, i) {
+ if (!sg_page(sg))
+ continue;
+ put_page(sg_page(sg));
+ }
+
+ if (areq->tsgl && areq->tsgl_entries)
+ sock_kfree_s(sk, tsgl, areq->tsgl_entries * sizeof(*tsgl));
+}
+EXPORT_SYMBOL_GPL(af_alg_free_areq_sgls);
+
+/**
+ * af_alg_wait_for_wmem - wait for availability of writable memory
+ *
+ * @sk socket of connection to user space
+ * @flags If MSG_DONTWAIT is set, then only report if function would sleep
+ * @return 0 when writable memory is available, < 0 upon error
+ */
+int af_alg_wait_for_wmem(struct sock *sk, unsigned int flags)
+{
+ DEFINE_WAIT_FUNC(wait, woken_wake_function);
+ int err = -ERESTARTSYS;
+ long timeout;
+
+ if (flags & MSG_DONTWAIT)
+ return -EAGAIN;
+
+ sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk);
+
+ add_wait_queue(sk_sleep(sk), &wait);
+ for (;;) {
+ if (signal_pending(current))
+ break;
+ timeout = MAX_SCHEDULE_TIMEOUT;
+ if (sk_wait_event(sk, &timeout, af_alg_writable(sk), &wait)) {
+ err = 0;
+ break;
+ }
+ }
+ remove_wait_queue(sk_sleep(sk), &wait);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(af_alg_wait_for_wmem);
+
+/**
+ * af_alg_wmem_wakeup - wakeup caller when writable memory is available
+ *
+ * @sk socket of connection to user space
+ */
+void af_alg_wmem_wakeup(struct sock *sk)
+{
+ struct socket_wq *wq;
+
+ if (!af_alg_writable(sk))
+ return;
+
+ rcu_read_lock();
+ wq = rcu_dereference(sk->sk_wq);
+ if (skwq_has_sleeper(wq))
+ wake_up_interruptible_sync_poll(&wq->wait, POLLIN |
+ POLLRDNORM |
+ POLLRDBAND);
+ sk_wake_async(sk, SOCK_WAKE_WAITD, POLL_IN);
+ rcu_read_unlock();
+}
+EXPORT_SYMBOL_GPL(af_alg_wmem_wakeup);
+
+/**
+ * af_alg_wait_for_data - wait for availability of TX data
+ *
+ * @sk socket of connection to user space
+ * @flags If MSG_DONTWAIT is set, then only report if function would sleep
+ * @return 0 when writable memory is available, < 0 upon error
+ */
+int af_alg_wait_for_data(struct sock *sk, unsigned flags)
+{
+ DEFINE_WAIT_FUNC(wait, woken_wake_function);
+ struct alg_sock *ask = alg_sk(sk);
+ struct af_alg_ctx *ctx = ask->private;
+ long timeout;
+ int err = -ERESTARTSYS;
+
+ if (flags & MSG_DONTWAIT)
+ return -EAGAIN;
+
+ sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk);
+
+ add_wait_queue(sk_sleep(sk), &wait);
+ for (;;) {
+ if (signal_pending(current))
+ break;
+ timeout = MAX_SCHEDULE_TIMEOUT;
+ if (sk_wait_event(sk, &timeout, (ctx->used || !ctx->more),
+ &wait)) {
+ err = 0;
+ break;
+ }
+ }
+ remove_wait_queue(sk_sleep(sk), &wait);
+
+ sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(af_alg_wait_for_data);
+
+/**
+ * af_alg_data_wakeup - wakeup caller when new data can be sent to kernel
+ *
+ * @sk socket of connection to user space
+ */
+
+void af_alg_data_wakeup(struct sock *sk)
+{
+ struct alg_sock *ask = alg_sk(sk);
+ struct af_alg_ctx *ctx = ask->private;
+ struct socket_wq *wq;
+
+ if (!ctx->used)
+ return;
+
+ rcu_read_lock();
+ wq = rcu_dereference(sk->sk_wq);
+ if (skwq_has_sleeper(wq))
+ wake_up_interruptible_sync_poll(&wq->wait, POLLOUT |
+ POLLRDNORM |
+ POLLRDBAND);
+ sk_wake_async(sk, SOCK_WAKE_SPACE, POLL_OUT);
+ rcu_read_unlock();
+}
+EXPORT_SYMBOL_GPL(af_alg_data_wakeup);
+
+/**
+ * af_alg_sendmsg - implementation of sendmsg system call handler
+ *
+ * The sendmsg system call handler obtains the user data and stores it
+ * in ctx->tsgl_list. This implies allocation of the required numbers of
+ * struct af_alg_tsgl.
+ *
+ * In addition, the ctx is filled with the information sent via CMSG.
+ *
+ * @sock socket of connection to user space
+ * @msg message from user space
+ * @size size of message from user space
+ * @ivsize the size of the IV for the cipher operation to verify that the
+ * user-space-provided IV has the right size
+ * @return the number of copied data upon success, < 0 upon error
+ */
+int af_alg_sendmsg(struct socket *sock, struct msghdr *msg, size_t size,
+ unsigned int ivsize)
+{
+ struct sock *sk = sock->sk;
+ struct alg_sock *ask = alg_sk(sk);
+ struct af_alg_ctx *ctx = ask->private;
+ struct af_alg_tsgl *sgl;
+ struct af_alg_control con = {};
+ long copied = 0;
+ bool enc = 0;
+ bool init = 0;
+ int err = 0;
+
+ if (msg->msg_controllen) {
+ err = af_alg_cmsg_send(msg, &con);
+ if (err)
+ return err;
+
+ init = 1;
+ switch (con.op) {
+ case ALG_OP_ENCRYPT:
+ enc = 1;
+ break;
+ case ALG_OP_DECRYPT:
+ enc = 0;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (con.iv && con.iv->ivlen != ivsize)
+ return -EINVAL;
+ }
+
+ lock_sock(sk);
+ if (!ctx->more && ctx->used) {
+ err = -EINVAL;
+ goto unlock;
+ }
+
+ if (init) {
+ ctx->enc = enc;
+ if (con.iv)
+ memcpy(ctx->iv, con.iv->iv, ivsize);
+
+ ctx->aead_assoclen = con.aead_assoclen;
+ }
+
+ while (size) {
+ struct scatterlist *sg;
+ size_t len = size;
+ size_t plen;
+
+ /* use the existing memory in an allocated page */
+ if (ctx->merge) {
+ sgl = list_entry(ctx->tsgl_list.prev,
+ struct af_alg_tsgl, list);
+ sg = sgl->sg + sgl->cur - 1;
+ len = min_t(size_t, len,
+ PAGE_SIZE - sg->offset - sg->length);
+
+ err = memcpy_from_msg(page_address(sg_page(sg)) +
+ sg->offset + sg->length,
+ msg, len);
+ if (err)
+ goto unlock;
+
+ sg->length += len;
+ ctx->merge = (sg->offset + sg->length) &
+ (PAGE_SIZE - 1);
+
+ ctx->used += len;
+ copied += len;
+ size -= len;
+ continue;
+ }
+
+ if (!af_alg_writable(sk)) {
+ err = af_alg_wait_for_wmem(sk, msg->msg_flags);
+ if (err)
+ goto unlock;
+ }
+
+ /* allocate a new page */
+ len = min_t(unsigned long, len, af_alg_sndbuf(sk));
+
+ err = af_alg_alloc_tsgl(sk);
+ if (err)
+ goto unlock;
+
+ sgl = list_entry(ctx->tsgl_list.prev, struct af_alg_tsgl,
+ list);
+ sg = sgl->sg;
+ if (sgl->cur)
+ sg_unmark_end(sg + sgl->cur - 1);
+
+ do {
+ unsigned int i = sgl->cur;
+
+ plen = min_t(size_t, len, PAGE_SIZE);
+
+ sg_assign_page(sg + i, alloc_page(GFP_KERNEL));
+ if (!sg_page(sg + i)) {
+ err = -ENOMEM;
+ goto unlock;
+ }
+
+ err = memcpy_from_msg(page_address(sg_page(sg + i)),
+ msg, plen);
+ if (err) {
+ __free_page(sg_page(sg + i));
+ sg_assign_page(sg + i, NULL);
+ goto unlock;
+ }
+
+ sg[i].length = plen;
+ len -= plen;
+ ctx->used += plen;
+ copied += plen;
+ size -= plen;
+ sgl->cur++;
+ } while (len && sgl->cur < MAX_SGL_ENTS);
+
+ if (!size)
+ sg_mark_end(sg + sgl->cur - 1);
+
+ ctx->merge = plen & (PAGE_SIZE - 1);
+ }
+
+ err = 0;
+
+ ctx->more = msg->msg_flags & MSG_MORE;
+
+unlock:
+ af_alg_data_wakeup(sk);
+ release_sock(sk);
+
+ return copied ?: err;
+}
+EXPORT_SYMBOL_GPL(af_alg_sendmsg);
+
+/**
+ * af_alg_sendpage - sendpage system call handler
+ *
+ * This is a generic implementation of sendpage to fill ctx->tsgl_list.
+ */
+ssize_t af_alg_sendpage(struct socket *sock, struct page *page,
+ int offset, size_t size, int flags)
+{
+ struct sock *sk = sock->sk;
+ struct alg_sock *ask = alg_sk(sk);
+ struct af_alg_ctx *ctx = ask->private;
+ struct af_alg_tsgl *sgl;
+ int err = -EINVAL;
+
+ if (flags & MSG_SENDPAGE_NOTLAST)
+ flags |= MSG_MORE;
+
+ lock_sock(sk);
+ if (!ctx->more && ctx->used)
+ goto unlock;
+
+ if (!size)
+ goto done;
+
+ if (!af_alg_writable(sk)) {
+ err = af_alg_wait_for_wmem(sk, flags);
+ if (err)
+ goto unlock;
+ }
+
+ err = af_alg_alloc_tsgl(sk);
+ if (err)
+ goto unlock;
+
+ ctx->merge = 0;
+ sgl = list_entry(ctx->tsgl_list.prev, struct af_alg_tsgl, list);
+
+ if (sgl->cur)
+ sg_unmark_end(sgl->sg + sgl->cur - 1);
+
+ sg_mark_end(sgl->sg + sgl->cur);
+
+ get_page(page);
+ sg_set_page(sgl->sg + sgl->cur, page, size, offset);
+ sgl->cur++;
+ ctx->used += size;
+
+done:
+ ctx->more = flags & MSG_MORE;
+
+unlock:
+ af_alg_data_wakeup(sk);
+ release_sock(sk);
+
+ return err ?: size;
+}
+EXPORT_SYMBOL_GPL(af_alg_sendpage);
+
+/**
+ * af_alg_async_cb - AIO callback handler
+ *
+ * This handler cleans up the struct af_alg_async_req upon completion of the
+ * AIO operation.
+ *
+ * The number of bytes to be generated with the AIO operation must be set
+ * in areq->outlen before the AIO callback handler is invoked.
+ */
+void af_alg_async_cb(struct crypto_async_request *_req, int err)
+{
+ struct af_alg_async_req *areq = _req->data;
+ struct sock *sk = areq->sk;
+ struct kiocb *iocb = areq->iocb;
+ unsigned int resultlen;
+
+ lock_sock(sk);
+
+ /* Buffer size written by crypto operation. */
+ resultlen = areq->outlen;
+
+ af_alg_free_areq_sgls(areq);
+ sock_kfree_s(sk, areq, areq->areqlen);
+ __sock_put(sk);
+
+ iocb->ki_complete(iocb, err ? err : resultlen, 0);
+
+ release_sock(sk);
+}
+EXPORT_SYMBOL_GPL(af_alg_async_cb);
+
+/**
+ * af_alg_poll - poll system call handler
+ */
+unsigned int af_alg_poll(struct file *file, struct socket *sock,
+ poll_table *wait)
+{
+ struct sock *sk = sock->sk;
+ struct alg_sock *ask = alg_sk(sk);
+ struct af_alg_ctx *ctx = ask->private;
+ unsigned int mask;
+
+ sock_poll_wait(file, sk_sleep(sk), wait);
+ mask = 0;
+
+ if (!ctx->more || ctx->used)
+ mask |= POLLIN | POLLRDNORM;
+
+ if (af_alg_writable(sk))
+ mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
+
+ return mask;
+}
+EXPORT_SYMBOL_GPL(af_alg_poll);
+
+/**
+ * af_alg_alloc_areq - allocate struct af_alg_async_req
+ *
+ * @sk socket of connection to user space
+ * @areqlen size of struct af_alg_async_req + crypto_*_reqsize
+ * @return allocated data structure or ERR_PTR upon error
+ */
+struct af_alg_async_req *af_alg_alloc_areq(struct sock *sk,
+ unsigned int areqlen)
+{
+ struct af_alg_async_req *areq = sock_kmalloc(sk, areqlen, GFP_KERNEL);
+
+ if (unlikely(!areq))
+ return ERR_PTR(-ENOMEM);
+
+ areq->areqlen = areqlen;
+ areq->sk = sk;
+ areq->last_rsgl = NULL;
+ INIT_LIST_HEAD(&areq->rsgl_list);
+ areq->tsgl = NULL;
+ areq->tsgl_entries = 0;
+
+ return areq;
+}
+EXPORT_SYMBOL_GPL(af_alg_alloc_areq);
+
+/**
+ * af_alg_get_rsgl - create the RX SGL for the output data from the crypto
+ * operation
+ *
+ * @sk socket of connection to user space
+ * @msg user space message
+ * @flags flags used to invoke recvmsg with
+ * @areq instance of the cryptographic request that will hold the RX SGL
+ * @maxsize maximum number of bytes to be pulled from user space
+ * @outlen number of bytes in the RX SGL
+ * @return 0 on success, < 0 upon error
+ */
+int af_alg_get_rsgl(struct sock *sk, struct msghdr *msg, int flags,
+ struct af_alg_async_req *areq, size_t maxsize,
+ size_t *outlen)
+{
+ struct alg_sock *ask = alg_sk(sk);
+ struct af_alg_ctx *ctx = ask->private;
+ size_t len = 0;
+
+ while (maxsize > len && msg_data_left(msg)) {
+ struct af_alg_rsgl *rsgl;
+ size_t seglen;
+ int err;
+
+ /* limit the amount of readable buffers */
+ if (!af_alg_readable(sk))
+ break;
+
+ if (!ctx->used) {
+ err = af_alg_wait_for_data(sk, flags);
+ if (err)
+ return err;
+ }
+
+ seglen = min_t(size_t, (maxsize - len),
+ msg_data_left(msg));
+
+ if (list_empty(&areq->rsgl_list)) {
+ rsgl = &areq->first_rsgl;
+ } else {
+ rsgl = sock_kmalloc(sk, sizeof(*rsgl), GFP_KERNEL);
+ if (unlikely(!rsgl))
+ return -ENOMEM;
+ }
+
+ rsgl->sgl.npages = 0;
+ list_add_tail(&rsgl->list, &areq->rsgl_list);
+
+ /* make one iovec available as scatterlist */
+ err = af_alg_make_sg(&rsgl->sgl, &msg->msg_iter, seglen);
+ if (err < 0)
+ return err;
+
+ /* chain the new scatterlist with previous one */
+ if (areq->last_rsgl)
+ af_alg_link_sg(&areq->last_rsgl->sgl, &rsgl->sgl);
+
+ areq->last_rsgl = rsgl;
+ len += err;
+ ctx->rcvused += err;
+ rsgl->sg_num_bytes = err;
+ iov_iter_advance(&msg->msg_iter, err);
+ }
+
+ *outlen = len;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(af_alg_get_rsgl);
+
static int __init af_alg_init(void)
{
int err = proto_register(&alg_proto, 0);
diff --git a/crypto/ahash.c b/crypto/ahash.c
index 826cd7ab4d4a..5e8666e6ccae 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -588,6 +588,35 @@ int crypto_unregister_ahash(struct ahash_alg *alg)
}
EXPORT_SYMBOL_GPL(crypto_unregister_ahash);
+int crypto_register_ahashes(struct ahash_alg *algs, int count)
+{
+ int i, ret;
+
+ for (i = 0; i < count; i++) {
+ ret = crypto_register_ahash(&algs[i]);
+ if (ret)
+ goto err;
+ }
+
+ return 0;
+
+err:
+ for (--i; i >= 0; --i)
+ crypto_unregister_ahash(&algs[i]);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(crypto_register_ahashes);
+
+void crypto_unregister_ahashes(struct ahash_alg *algs, int count)
+{
+ int i;
+
+ for (i = count - 1; i >= 0; --i)
+ crypto_unregister_ahash(&algs[i]);
+}
+EXPORT_SYMBOL_GPL(crypto_unregister_ahashes);
+
int ahash_register_instance(struct crypto_template *tmpl,
struct ahash_instance *inst)
{
diff --git a/crypto/algapi.c b/crypto/algapi.c
index 9eed4ef9c971..aa699ff6c876 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -260,7 +260,7 @@ void crypto_alg_tested(const char *name, int err)
goto found;
}
- printk(KERN_ERR "alg: Unexpected test result for %s: %d\n", name, err);
+ pr_err("alg: Unexpected test result for %s: %d\n", name, err);
goto unlock;
found:
@@ -975,13 +975,15 @@ void crypto_inc(u8 *a, unsigned int size)
}
EXPORT_SYMBOL_GPL(crypto_inc);
-void __crypto_xor(u8 *dst, const u8 *src, unsigned int len)
+void __crypto_xor(u8 *dst, const u8 *src1, const u8 *src2, unsigned int len)
{
int relalign = 0;
if (!IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)) {
int size = sizeof(unsigned long);
- int d = ((unsigned long)dst ^ (unsigned long)src) & (size - 1);
+ int d = (((unsigned long)dst ^ (unsigned long)src1) |
+ ((unsigned long)dst ^ (unsigned long)src2)) &
+ (size - 1);
relalign = d ? 1 << __ffs(d) : size;
@@ -992,34 +994,37 @@ void __crypto_xor(u8 *dst, const u8 *src, unsigned int len)
* process the remainder of the input using optimal strides.
*/
while (((unsigned long)dst & (relalign - 1)) && len > 0) {
- *dst++ ^= *src++;
+ *dst++ = *src1++ ^ *src2++;
len--;
}
}
while (IS_ENABLED(CONFIG_64BIT) && len >= 8 && !(relalign & 7)) {
- *(u64 *)dst ^= *(u64 *)src;
+ *(u64 *)dst = *(u64 *)src1 ^ *(u64 *)src2;
dst += 8;
- src += 8;
+ src1 += 8;
+ src2 += 8;
len -= 8;
}
while (len >= 4 && !(relalign & 3)) {
- *(u32 *)dst ^= *(u32 *)src;
+ *(u32 *)dst = *(u32 *)src1 ^ *(u32 *)src2;
dst += 4;
- src += 4;
+ src1 += 4;
+ src2 += 4;
len -= 4;
}
while (len >= 2 && !(relalign & 1)) {
- *(u16 *)dst ^= *(u16 *)src;
+ *(u16 *)dst = *(u16 *)src1 ^ *(u16 *)src2;
dst += 2;
- src += 2;
+ src1 += 2;
+ src2 += 2;
len -= 2;
}
while (len--)
- *dst++ ^= *src++;
+ *dst++ = *src1++ ^ *src2++;
}
EXPORT_SYMBOL_GPL(__crypto_xor);
diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c
index 8af664f7d27c..516b38c3a169 100644
--- a/crypto/algif_aead.c
+++ b/crypto/algif_aead.c
@@ -5,88 +5,56 @@
*
* This file provides the user-space API for AEAD ciphers.
*
- * This file is derived from algif_skcipher.c.
- *
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
+ *
+ * The following concept of the memory management is used:
+ *
+ * The kernel maintains two SGLs, the TX SGL and the RX SGL. The TX SGL is
+ * filled by user space with the data submitted via sendpage/sendmsg. Filling
+ * up the TX SGL does not cause a crypto operation -- the data will only be
+ * tracked by the kernel. Upon receipt of one recvmsg call, the caller must
+ * provide a buffer which is tracked with the RX SGL.
+ *
+ * During the processing of the recvmsg operation, the cipher request is
+ * allocated and prepared. As part of the recvmsg operation, the processed
+ * TX buffers are extracted from the TX SGL into a separate SGL.
+ *
+ * After the completion of the crypto operation, the RX SGL and the cipher
+ * request is released. The extracted TX SGL parts are released together with
+ * the RX SGL release.
*/
#include <crypto/internal/aead.h>
#include <crypto/scatterwalk.h>
#include <crypto/if_alg.h>
+#include <crypto/skcipher.h>
+#include <crypto/null.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/kernel.h>
-#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/net.h>
#include <net/sock.h>
-struct aead_sg_list {
- unsigned int cur;
- struct scatterlist sg[ALG_MAX_PAGES];
-};
-
-struct aead_async_rsgl {
- struct af_alg_sgl sgl;
- struct list_head list;
-};
-
-struct aead_async_req {
- struct scatterlist *tsgl;
- struct aead_async_rsgl first_rsgl;
- struct list_head list;
- struct kiocb *iocb;
- struct sock *sk;
- unsigned int tsgls;
- char iv[];
-};
-
struct aead_tfm {
struct crypto_aead *aead;
bool has_key;
+ struct crypto_skcipher *null_tfm;
};
-struct aead_ctx {
- struct aead_sg_list tsgl;
- struct aead_async_rsgl first_rsgl;
- struct list_head list;
-
- void *iv;
-
- struct af_alg_completion completion;
-
- unsigned long used;
-
- unsigned int len;
- bool more;
- bool merge;
- bool enc;
-
- size_t aead_assoclen;
- struct aead_request aead_req;
-};
-
-static inline int aead_sndbuf(struct sock *sk)
+static inline bool aead_sufficient_data(struct sock *sk)
{
struct alg_sock *ask = alg_sk(sk);
- struct aead_ctx *ctx = ask->private;
-
- return max_t(int, max_t(int, sk->sk_sndbuf & PAGE_MASK, PAGE_SIZE) -
- ctx->used, 0);
-}
-
-static inline bool aead_writable(struct sock *sk)
-{
- return PAGE_SIZE <= aead_sndbuf(sk);
-}
-
-static inline bool aead_sufficient_data(struct aead_ctx *ctx)
-{
- unsigned as = crypto_aead_authsize(crypto_aead_reqtfm(&ctx->aead_req));
+ struct sock *psk = ask->parent;
+ struct alg_sock *pask = alg_sk(psk);
+ struct af_alg_ctx *ctx = ask->private;
+ struct aead_tfm *aeadc = pask->private;
+ struct crypto_aead *tfm = aeadc->aead;
+ unsigned int as = crypto_aead_authsize(tfm);
/*
* The minimum amount of memory needed for an AEAD cipher is
@@ -95,484 +63,58 @@ static inline bool aead_sufficient_data(struct aead_ctx *ctx)
return ctx->used >= ctx->aead_assoclen + (ctx->enc ? 0 : as);
}
-static void aead_reset_ctx(struct aead_ctx *ctx)
-{
- struct aead_sg_list *sgl = &ctx->tsgl;
-
- sg_init_table(sgl->sg, ALG_MAX_PAGES);
- sgl->cur = 0;
- ctx->used = 0;
- ctx->more = 0;
- ctx->merge = 0;
-}
-
-static void aead_put_sgl(struct sock *sk)
-{
- struct alg_sock *ask = alg_sk(sk);
- struct aead_ctx *ctx = ask->private;
- struct aead_sg_list *sgl = &ctx->tsgl;
- struct scatterlist *sg = sgl->sg;
- unsigned int i;
-
- for (i = 0; i < sgl->cur; i++) {
- if (!sg_page(sg + i))
- continue;
-
- put_page(sg_page(sg + i));
- sg_assign_page(sg + i, NULL);
- }
- aead_reset_ctx(ctx);
-}
-
-static void aead_wmem_wakeup(struct sock *sk)
-{
- struct socket_wq *wq;
-
- if (!aead_writable(sk))
- return;
-
- rcu_read_lock();
- wq = rcu_dereference(sk->sk_wq);
- if (skwq_has_sleeper(wq))
- wake_up_interruptible_sync_poll(&wq->wait, POLLIN |
- POLLRDNORM |
- POLLRDBAND);
- sk_wake_async(sk, SOCK_WAKE_WAITD, POLL_IN);
- rcu_read_unlock();
-}
-
-static int aead_wait_for_data(struct sock *sk, unsigned flags)
-{
- DEFINE_WAIT_FUNC(wait, woken_wake_function);
- struct alg_sock *ask = alg_sk(sk);
- struct aead_ctx *ctx = ask->private;
- long timeout;
- int err = -ERESTARTSYS;
-
- if (flags & MSG_DONTWAIT)
- return -EAGAIN;
-
- sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk);
- add_wait_queue(sk_sleep(sk), &wait);
- for (;;) {
- if (signal_pending(current))
- break;
- timeout = MAX_SCHEDULE_TIMEOUT;
- if (sk_wait_event(sk, &timeout, !ctx->more, &wait)) {
- err = 0;
- break;
- }
- }
- remove_wait_queue(sk_sleep(sk), &wait);
-
- sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk);
-
- return err;
-}
-
-static void aead_data_wakeup(struct sock *sk)
-{
- struct alg_sock *ask = alg_sk(sk);
- struct aead_ctx *ctx = ask->private;
- struct socket_wq *wq;
-
- if (ctx->more)
- return;
- if (!ctx->used)
- return;
-
- rcu_read_lock();
- wq = rcu_dereference(sk->sk_wq);
- if (skwq_has_sleeper(wq))
- wake_up_interruptible_sync_poll(&wq->wait, POLLOUT |
- POLLRDNORM |
- POLLRDBAND);
- sk_wake_async(sk, SOCK_WAKE_SPACE, POLL_OUT);
- rcu_read_unlock();
-}
-
static int aead_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
{
struct sock *sk = sock->sk;
struct alg_sock *ask = alg_sk(sk);
- struct aead_ctx *ctx = ask->private;
- unsigned ivsize =
- crypto_aead_ivsize(crypto_aead_reqtfm(&ctx->aead_req));
- struct aead_sg_list *sgl = &ctx->tsgl;
- struct af_alg_control con = {};
- long copied = 0;
- bool enc = 0;
- bool init = 0;
- int err = -EINVAL;
-
- if (msg->msg_controllen) {
- err = af_alg_cmsg_send(msg, &con);
- if (err)
- return err;
-
- init = 1;
- switch (con.op) {
- case ALG_OP_ENCRYPT:
- enc = 1;
- break;
- case ALG_OP_DECRYPT:
- enc = 0;
- break;
- default:
- return -EINVAL;
- }
-
- if (con.iv && con.iv->ivlen != ivsize)
- return -EINVAL;
- }
-
- lock_sock(sk);
- if (!ctx->more && ctx->used)
- goto unlock;
-
- if (init) {
- ctx->enc = enc;
- if (con.iv)
- memcpy(ctx->iv, con.iv->iv, ivsize);
-
- ctx->aead_assoclen = con.aead_assoclen;
- }
-
- while (size) {
- size_t len = size;
- struct scatterlist *sg = NULL;
-
- /* use the existing memory in an allocated page */
- if (ctx->merge) {
- sg = sgl->sg + sgl->cur - 1;
- len = min_t(unsigned long, len,
- PAGE_SIZE - sg->offset - sg->length);
- err = memcpy_from_msg(page_address(sg_page(sg)) +
- sg->offset + sg->length,
- msg, len);
- if (err)
- goto unlock;
-
- sg->length += len;
- ctx->merge = (sg->offset + sg->length) &
- (PAGE_SIZE - 1);
-
- ctx->used += len;
- copied += len;
- size -= len;
- continue;
- }
-
- if (!aead_writable(sk)) {
- /* user space sent too much data */
- aead_put_sgl(sk);
- err = -EMSGSIZE;
- goto unlock;
- }
-
- /* allocate a new page */
- len = min_t(unsigned long, size, aead_sndbuf(sk));
- while (len) {
- size_t plen = 0;
-
- if (sgl->cur >= ALG_MAX_PAGES) {
- aead_put_sgl(sk);
- err = -E2BIG;
- goto unlock;
- }
-
- sg = sgl->sg + sgl->cur;
- plen = min_t(size_t, len, PAGE_SIZE);
-
- sg_assign_page(sg, alloc_page(GFP_KERNEL));
- err = -ENOMEM;
- if (!sg_page(sg))
- goto unlock;
-
- err = memcpy_from_msg(page_address(sg_page(sg)),
- msg, plen);
- if (err) {
- __free_page(sg_page(sg));
- sg_assign_page(sg, NULL);
- goto unlock;
- }
-
- sg->offset = 0;
- sg->length = plen;
- len -= plen;
- ctx->used += plen;
- copied += plen;
- sgl->cur++;
- size -= plen;
- ctx->merge = plen & (PAGE_SIZE - 1);
- }
- }
-
- err = 0;
-
- ctx->more = msg->msg_flags & MSG_MORE;
- if (!ctx->more && !aead_sufficient_data(ctx)) {
- aead_put_sgl(sk);
- err = -EMSGSIZE;
- }
-
-unlock:
- aead_data_wakeup(sk);
- release_sock(sk);
-
- return err ?: copied;
-}
-
-static ssize_t aead_sendpage(struct socket *sock, struct page *page,
- int offset, size_t size, int flags)
-{
- struct sock *sk = sock->sk;
- struct alg_sock *ask = alg_sk(sk);
- struct aead_ctx *ctx = ask->private;
- struct aead_sg_list *sgl = &ctx->tsgl;
- int err = -EINVAL;
-
- if (flags & MSG_SENDPAGE_NOTLAST)
- flags |= MSG_MORE;
-
- if (sgl->cur >= ALG_MAX_PAGES)
- return -E2BIG;
-
- lock_sock(sk);
- if (!ctx->more && ctx->used)
- goto unlock;
-
- if (!size)
- goto done;
-
- if (!aead_writable(sk)) {
- /* user space sent too much data */
- aead_put_sgl(sk);
- err = -EMSGSIZE;
- goto unlock;
- }
-
- ctx->merge = 0;
-
- get_page(page);
- sg_set_page(sgl->sg + sgl->cur, page, size, offset);
- sgl->cur++;
- ctx->used += size;
-
- err = 0;
-
-done:
- ctx->more = flags & MSG_MORE;
- if (!ctx->more && !aead_sufficient_data(ctx)) {
- aead_put_sgl(sk);
- err = -EMSGSIZE;
- }
+ struct sock *psk = ask->parent;
+ struct alg_sock *pask = alg_sk(psk);
+ struct aead_tfm *aeadc = pask->private;
+ struct crypto_aead *tfm = aeadc->aead;
+ unsigned int ivsize = crypto_aead_ivsize(tfm);
-unlock:
- aead_data_wakeup(sk);
- release_sock(sk);
-
- return err ?: size;
+ return af_alg_sendmsg(sock, msg, size, ivsize);
}
-#define GET_ASYM_REQ(req, tfm) (struct aead_async_req *) \
- ((char *)req + sizeof(struct aead_request) + \
- crypto_aead_reqsize(tfm))
-
- #define GET_REQ_SIZE(tfm) sizeof(struct aead_async_req) + \
- crypto_aead_reqsize(tfm) + crypto_aead_ivsize(tfm) + \
- sizeof(struct aead_request)
-
-static void aead_async_cb(struct crypto_async_request *_req, int err)
+static int crypto_aead_copy_sgl(struct crypto_skcipher *null_tfm,
+ struct scatterlist *src,
+ struct scatterlist *dst, unsigned int len)
{
- struct aead_request *req = _req->data;
- struct crypto_aead *tfm = crypto_aead_reqtfm(req);
- struct aead_async_req *areq = GET_ASYM_REQ(req, tfm);
- struct sock *sk = areq->sk;
- struct scatterlist *sg = areq->tsgl;
- struct aead_async_rsgl *rsgl;
- struct kiocb *iocb = areq->iocb;
- unsigned int i, reqlen = GET_REQ_SIZE(tfm);
-
- list_for_each_entry(rsgl, &areq->list, list) {
- af_alg_free_sg(&rsgl->sgl);
- if (rsgl != &areq->first_rsgl)
- sock_kfree_s(sk, rsgl, sizeof(*rsgl));
- }
+ SKCIPHER_REQUEST_ON_STACK(skreq, null_tfm);
- for (i = 0; i < areq->tsgls; i++)
- put_page(sg_page(sg + i));
+ skcipher_request_set_tfm(skreq, null_tfm);
+ skcipher_request_set_callback(skreq, CRYPTO_TFM_REQ_MAY_BACKLOG,
+ NULL, NULL);
+ skcipher_request_set_crypt(skreq, src, dst, len, NULL);
- sock_kfree_s(sk, areq->tsgl, sizeof(*areq->tsgl) * areq->tsgls);
- sock_kfree_s(sk, req, reqlen);
- __sock_put(sk);
- iocb->ki_complete(iocb, err, err);
+ return crypto_skcipher_encrypt(skreq);
}
-static int aead_recvmsg_async(struct socket *sock, struct msghdr *msg,
- int flags)
+static int _aead_recvmsg(struct socket *sock, struct msghdr *msg,
+ size_t ignored, int flags)
{
struct sock *sk = sock->sk;
struct alg_sock *ask = alg_sk(sk);
- struct aead_ctx *ctx = ask->private;
- struct crypto_aead *tfm = crypto_aead_reqtfm(&ctx->aead_req);
- struct aead_async_req *areq;
- struct aead_request *req = NULL;
- struct aead_sg_list *sgl = &ctx->tsgl;
- struct aead_async_rsgl *last_rsgl = NULL, *rsgl;
+ struct sock *psk = ask->parent;
+ struct alg_sock *pask = alg_sk(psk);
+ struct af_alg_ctx *ctx = ask->private;
+ struct aead_tfm *aeadc = pask->private;
+ struct crypto_aead *tfm = aeadc->aead;
+ struct crypto_skcipher *null_tfm = aeadc->null_tfm;
unsigned int as = crypto_aead_authsize(tfm);
- unsigned int i, reqlen = GET_REQ_SIZE(tfm);
- int err = -ENOMEM;
- unsigned long used;
- size_t outlen = 0;
- size_t usedpages = 0;
-
- lock_sock(sk);
- if (ctx->more) {
- err = aead_wait_for_data(sk, flags);
- if (err)
- goto unlock;
- }
-
- if (!aead_sufficient_data(ctx))
- goto unlock;
-
- used = ctx->used;
- if (ctx->enc)
- outlen = used + as;
- else
- outlen = used - as;
-
- req = sock_kmalloc(sk, reqlen, GFP_KERNEL);
- if (unlikely(!req))
- goto unlock;
-
- areq = GET_ASYM_REQ(req, tfm);
- memset(&areq->first_rsgl, '\0', sizeof(areq->first_rsgl));
- INIT_LIST_HEAD(&areq->list);
- areq->iocb = msg->msg_iocb;
- areq->sk = sk;
- memcpy(areq->iv, ctx->iv, crypto_aead_ivsize(tfm));
- aead_request_set_tfm(req, tfm);
- aead_request_set_ad(req, ctx->aead_assoclen);
- aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
- aead_async_cb, req);
- used -= ctx->aead_assoclen;
-
- /* take over all tx sgls from ctx */
- areq->tsgl = sock_kmalloc(sk,
- sizeof(*areq->tsgl) * max_t(u32, sgl->cur, 1),
- GFP_KERNEL);
- if (unlikely(!areq->tsgl))
- goto free;
-
- sg_init_table(areq->tsgl, max_t(u32, sgl->cur, 1));
- for (i = 0; i < sgl->cur; i++)
- sg_set_page(&areq->tsgl[i], sg_page(&sgl->sg[i]),
- sgl->sg[i].length, sgl->sg[i].offset);
-
- areq->tsgls = sgl->cur;
-
- /* create rx sgls */
- while (outlen > usedpages && iov_iter_count(&msg->msg_iter)) {
- size_t seglen = min_t(size_t, iov_iter_count(&msg->msg_iter),
- (outlen - usedpages));
-
- if (list_empty(&areq->list)) {
- rsgl = &areq->first_rsgl;
-
- } else {
- rsgl = sock_kmalloc(sk, sizeof(*rsgl), GFP_KERNEL);
- if (unlikely(!rsgl)) {
- err = -ENOMEM;
- goto free;
- }
- }
- rsgl->sgl.npages = 0;
- list_add_tail(&rsgl->list, &areq->list);
-
- /* make one iovec available as scatterlist */
- err = af_alg_make_sg(&rsgl->sgl, &msg->msg_iter, seglen);
- if (err < 0)
- goto free;
-
- usedpages += err;
-
- /* chain the new scatterlist with previous one */
- if (last_rsgl)
- af_alg_link_sg(&last_rsgl->sgl, &rsgl->sgl);
-
- last_rsgl = rsgl;
-
- iov_iter_advance(&msg->msg_iter, err);
- }
-
- /* ensure output buffer is sufficiently large */
- if (usedpages < outlen) {
- err = -EINVAL;
- goto unlock;
- }
-
- aead_request_set_crypt(req, areq->tsgl, areq->first_rsgl.sgl.sg, used,
- areq->iv);
- err = ctx->enc ? crypto_aead_encrypt(req) : crypto_aead_decrypt(req);
- if (err) {
- if (err == -EINPROGRESS) {
- sock_hold(sk);
- err = -EIOCBQUEUED;
- aead_reset_ctx(ctx);
- goto unlock;
- } else if (err == -EBADMSG) {
- aead_put_sgl(sk);
- }
- goto free;
- }
- aead_put_sgl(sk);
-
-free:
- list_for_each_entry(rsgl, &areq->list, list) {
- af_alg_free_sg(&rsgl->sgl);
- if (rsgl != &areq->first_rsgl)
- sock_kfree_s(sk, rsgl, sizeof(*rsgl));
- }
- if (areq->tsgl)
- sock_kfree_s(sk, areq->tsgl, sizeof(*areq->tsgl) * areq->tsgls);
- if (req)
- sock_kfree_s(sk, req, reqlen);
-unlock:
- aead_wmem_wakeup(sk);
- release_sock(sk);
- return err ? err : outlen;
-}
-
-static int aead_recvmsg_sync(struct socket *sock, struct msghdr *msg, int flags)
-{
- struct sock *sk = sock->sk;
- struct alg_sock *ask = alg_sk(sk);
- struct aead_ctx *ctx = ask->private;
- unsigned as = crypto_aead_authsize(crypto_aead_reqtfm(&ctx->aead_req));
- struct aead_sg_list *sgl = &ctx->tsgl;
- struct aead_async_rsgl *last_rsgl = NULL;
- struct aead_async_rsgl *rsgl, *tmp;
- int err = -EINVAL;
- unsigned long used = 0;
- size_t outlen = 0;
- size_t usedpages = 0;
-
- lock_sock(sk);
+ struct af_alg_async_req *areq;
+ struct af_alg_tsgl *tsgl;
+ struct scatterlist *src;
+ int err = 0;
+ size_t used = 0; /* [in] TX bufs to be en/decrypted */
+ size_t outlen = 0; /* [out] RX bufs produced by kernel */
+ size_t usedpages = 0; /* [in] RX bufs to be used from user */
+ size_t processed = 0; /* [in] TX bufs to be consumed */
/*
- * Please see documentation of aead_request_set_crypt for the
- * description of the AEAD memory structure expected from the caller.
+ * Data length provided by caller via sendmsg/sendpage that has not
+ * yet been processed.
*/
-
- if (ctx->more) {
- err = aead_wait_for_data(sk, flags);
- if (err)
- goto unlock;
- }
-
- /* data length provided by caller via sendmsg/sendpage */
used = ctx->used;
/*
@@ -584,8 +126,8 @@ static int aead_recvmsg_sync(struct socket *sock, struct msghdr *msg, int flags)
* the error message in sendmsg/sendpage and still call recvmsg. This
* check here protects the kernel integrity.
*/
- if (!aead_sufficient_data(ctx))
- goto unlock;
+ if (!aead_sufficient_data(sk))
+ return -EINVAL;
/*
* Calculate the minimum output buffer size holding the result of the
@@ -606,104 +148,191 @@ static int aead_recvmsg_sync(struct socket *sock, struct msghdr *msg, int flags)
*/
used -= ctx->aead_assoclen;
- /* convert iovecs of output buffers into scatterlists */
- while (outlen > usedpages && iov_iter_count(&msg->msg_iter)) {
- size_t seglen = min_t(size_t, iov_iter_count(&msg->msg_iter),
- (outlen - usedpages));
-
- if (list_empty(&ctx->list)) {
- rsgl = &ctx->first_rsgl;
- } else {
- rsgl = sock_kmalloc(sk, sizeof(*rsgl), GFP_KERNEL);
- if (unlikely(!rsgl)) {
- err = -ENOMEM;
- goto unlock;
- }
- }
- rsgl->sgl.npages = 0;
- list_add_tail(&rsgl->list, &ctx->list);
+ /* Allocate cipher request for current operation. */
+ areq = af_alg_alloc_areq(sk, sizeof(struct af_alg_async_req) +
+ crypto_aead_reqsize(tfm));
+ if (IS_ERR(areq))
+ return PTR_ERR(areq);
- /* make one iovec available as scatterlist */
- err = af_alg_make_sg(&rsgl->sgl, &msg->msg_iter, seglen);
- if (err < 0)
- goto unlock;
- usedpages += err;
- /* chain the new scatterlist with previous one */
- if (last_rsgl)
- af_alg_link_sg(&last_rsgl->sgl, &rsgl->sgl);
+ /* convert iovecs of output buffers into RX SGL */
+ err = af_alg_get_rsgl(sk, msg, flags, areq, outlen, &usedpages);
+ if (err)
+ goto free;
- last_rsgl = rsgl;
+ /*
+ * Ensure output buffer is sufficiently large. If the caller provides
+ * less buffer space, only use the relative required input size. This
+ * allows AIO operation where the caller sent all data to be processed
+ * and the AIO operation performs the operation on the different chunks
+ * of the input data.
+ */
+ if (usedpages < outlen) {
+ size_t less = outlen - usedpages;
- iov_iter_advance(&msg->msg_iter, err);
+ if (used < less) {
+ err = -EINVAL;
+ goto free;
+ }
+ used -= less;
+ outlen -= less;
}
- /* ensure output buffer is sufficiently large */
- if (usedpages < outlen) {
- err = -EINVAL;
- goto unlock;
- }
+ processed = used + ctx->aead_assoclen;
+ tsgl = list_first_entry(&ctx->tsgl_list, struct af_alg_tsgl, list);
- sg_mark_end(sgl->sg + sgl->cur - 1);
- aead_request_set_crypt(&ctx->aead_req, sgl->sg, ctx->first_rsgl.sgl.sg,
- used, ctx->iv);
- aead_request_set_ad(&ctx->aead_req, ctx->aead_assoclen);
+ /*
+ * Copy of AAD from source to destination
+ *
+ * The AAD is copied to the destination buffer without change. Even
+ * when user space uses an in-place cipher operation, the kernel
+ * will copy the data as it does not see whether such in-place operation
+ * is initiated.
+ *
+ * To ensure efficiency, the following implementation ensure that the
+ * ciphers are invoked to perform a crypto operation in-place. This
+ * is achieved by memory management specified as follows.
+ */
- err = af_alg_wait_for_completion(ctx->enc ?
- crypto_aead_encrypt(&ctx->aead_req) :
- crypto_aead_decrypt(&ctx->aead_req),
- &ctx->completion);
+ /* Use the RX SGL as source (and destination) for crypto op. */
+ src = areq->first_rsgl.sgl.sg;
+
+ if (ctx->enc) {
+ /*
+ * Encryption operation - The in-place cipher operation is
+ * achieved by the following operation:
+ *
+ * TX SGL: AAD || PT
+ * | |
+ * | copy |
+ * v v
+ * RX SGL: AAD || PT || Tag
+ */
+ err = crypto_aead_copy_sgl(null_tfm, tsgl->sg,
+ areq->first_rsgl.sgl.sg, processed);
+ if (err)
+ goto free;
+ af_alg_pull_tsgl(sk, processed, NULL, 0);
+ } else {
+ /*
+ * Decryption operation - To achieve an in-place cipher
+ * operation, the following SGL structure is used:
+ *
+ * TX SGL: AAD || CT || Tag
+ * | | ^
+ * | copy | | Create SGL link.
+ * v v |
+ * RX SGL: AAD || CT ----+
+ */
+
+ /* Copy AAD || CT to RX SGL buffer for in-place operation. */
+ err = crypto_aead_copy_sgl(null_tfm, tsgl->sg,
+ areq->first_rsgl.sgl.sg, outlen);
+ if (err)
+ goto free;
- if (err) {
- /* EBADMSG implies a valid cipher operation took place */
- if (err == -EBADMSG)
- aead_put_sgl(sk);
+ /* Create TX SGL for tag and chain it to RX SGL. */
+ areq->tsgl_entries = af_alg_count_tsgl(sk, processed,
+ processed - as);
+ if (!areq->tsgl_entries)
+ areq->tsgl_entries = 1;
+ areq->tsgl = sock_kmalloc(sk, sizeof(*areq->tsgl) *
+ areq->tsgl_entries,
+ GFP_KERNEL);
+ if (!areq->tsgl) {
+ err = -ENOMEM;
+ goto free;
+ }
+ sg_init_table(areq->tsgl, areq->tsgl_entries);
+
+ /* Release TX SGL, except for tag data and reassign tag data. */
+ af_alg_pull_tsgl(sk, processed, areq->tsgl, processed - as);
+
+ /* chain the areq TX SGL holding the tag with RX SGL */
+ if (usedpages) {
+ /* RX SGL present */
+ struct af_alg_sgl *sgl_prev = &areq->last_rsgl->sgl;
+
+ sg_unmark_end(sgl_prev->sg + sgl_prev->npages - 1);
+ sg_chain(sgl_prev->sg, sgl_prev->npages + 1,
+ areq->tsgl);
+ } else
+ /* no RX SGL present (e.g. authentication only) */
+ src = areq->tsgl;
+ }
- goto unlock;
+ /* Initialize the crypto operation */
+ aead_request_set_crypt(&areq->cra_u.aead_req, src,
+ areq->first_rsgl.sgl.sg, used, ctx->iv);
+ aead_request_set_ad(&areq->cra_u.aead_req, ctx->aead_assoclen);
+ aead_request_set_tfm(&areq->cra_u.aead_req, tfm);
+
+ if (msg->msg_iocb && !is_sync_kiocb(msg->msg_iocb)) {
+ /* AIO operation */
+ areq->iocb = msg->msg_iocb;
+ aead_request_set_callback(&areq->cra_u.aead_req,
+ CRYPTO_TFM_REQ_MAY_BACKLOG,
+ af_alg_async_cb, areq);
+ err = ctx->enc ? crypto_aead_encrypt(&areq->cra_u.aead_req) :
+ crypto_aead_decrypt(&areq->cra_u.aead_req);
+ } else {
+ /* Synchronous operation */
+ aead_request_set_callback(&areq->cra_u.aead_req,
+ CRYPTO_TFM_REQ_MAY_BACKLOG,
+ af_alg_complete, &ctx->completion);
+ err = af_alg_wait_for_completion(ctx->enc ?
+ crypto_aead_encrypt(&areq->cra_u.aead_req) :
+ crypto_aead_decrypt(&areq->cra_u.aead_req),
+ &ctx->completion);
}
- aead_put_sgl(sk);
- err = 0;
+ /* AIO operation in progress */
+ if (err == -EINPROGRESS) {
+ sock_hold(sk);
-unlock:
- list_for_each_entry_safe(rsgl, tmp, &ctx->list, list) {
- af_alg_free_sg(&rsgl->sgl);
- list_del(&rsgl->list);
- if (rsgl != &ctx->first_rsgl)
- sock_kfree_s(sk, rsgl, sizeof(*rsgl));
+ /* Remember output size that will be generated. */
+ areq->outlen = outlen;
+
+ return -EIOCBQUEUED;
}
- INIT_LIST_HEAD(&ctx->list);
- aead_wmem_wakeup(sk);
- release_sock(sk);
- return err ? err : outlen;
-}
+free:
+ af_alg_free_areq_sgls(areq);
+ sock_kfree_s(sk, areq, areq->areqlen);
-static int aead_recvmsg(struct socket *sock, struct msghdr *msg, size_t ignored,
- int flags)
-{
- return (msg->msg_iocb && !is_sync_kiocb(msg->msg_iocb)) ?
- aead_recvmsg_async(sock, msg, flags) :
- aead_recvmsg_sync(sock, msg, flags);
+ return err ? err : outlen;
}
-static unsigned int aead_poll(struct file *file, struct socket *sock,
- poll_table *wait)
+static int aead_recvmsg(struct socket *sock, struct msghdr *msg,
+ size_t ignored, int flags)
{
struct sock *sk = sock->sk;
- struct alg_sock *ask = alg_sk(sk);
- struct aead_ctx *ctx = ask->private;
- unsigned int mask;
-
- sock_poll_wait(file, sk_sleep(sk), wait);
- mask = 0;
+ int ret = 0;
- if (!ctx->more)
- mask |= POLLIN | POLLRDNORM;
+ lock_sock(sk);
+ while (msg_data_left(msg)) {
+ int err = _aead_recvmsg(sock, msg, ignored, flags);
+
+ /*
+ * This error covers -EIOCBQUEUED which implies that we can
+ * only handle one AIO request. If the caller wants to have
+ * multiple AIO requests in parallel, he must make multiple
+ * separate AIO calls.
+ *
+ * Also return the error if no data has been processed so far.
+ */
+ if (err <= 0) {
+ if (err == -EIOCBQUEUED || err == -EBADMSG || !ret)
+ ret = err;
+ goto out;
+ }
- if (aead_writable(sk))
- mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
+ ret += err;
+ }
- return mask;
+out:
+ af_alg_wmem_wakeup(sk);
+ release_sock(sk);
+ return ret;
}
static struct proto_ops algif_aead_ops = {
@@ -723,9 +352,9 @@ static struct proto_ops algif_aead_ops = {
.release = af_alg_release,
.sendmsg = aead_sendmsg,
- .sendpage = aead_sendpage,
+ .sendpage = af_alg_sendpage,
.recvmsg = aead_recvmsg,
- .poll = aead_poll,
+ .poll = af_alg_poll,
};
static int aead_check_key(struct socket *sock)
@@ -787,7 +416,7 @@ static ssize_t aead_sendpage_nokey(struct socket *sock, struct page *page,
if (err)
return err;
- return aead_sendpage(sock, page, offset, size, flags);
+ return af_alg_sendpage(sock, page, offset, size, flags);
}
static int aead_recvmsg_nokey(struct socket *sock, struct msghdr *msg,
@@ -821,13 +450,14 @@ static struct proto_ops algif_aead_ops_nokey = {
.sendmsg = aead_sendmsg_nokey,
.sendpage = aead_sendpage_nokey,
.recvmsg = aead_recvmsg_nokey,
- .poll = aead_poll,
+ .poll = af_alg_poll,
};
static void *aead_bind(const char *name, u32 type, u32 mask)
{
struct aead_tfm *tfm;
struct crypto_aead *aead;
+ struct crypto_skcipher *null_tfm;
tfm = kzalloc(sizeof(*tfm), GFP_KERNEL);
if (!tfm)
@@ -839,7 +469,15 @@ static void *aead_bind(const char *name, u32 type, u32 mask)
return ERR_CAST(aead);
}
+ null_tfm = crypto_get_default_null_skcipher2();
+ if (IS_ERR(null_tfm)) {
+ crypto_free_aead(aead);
+ kfree(tfm);
+ return ERR_CAST(null_tfm);
+ }
+
tfm->aead = aead;
+ tfm->null_tfm = null_tfm;
return tfm;
}
@@ -873,12 +511,15 @@ static int aead_setkey(void *private, const u8 *key, unsigned int keylen)
static void aead_sock_destruct(struct sock *sk)
{
struct alg_sock *ask = alg_sk(sk);
- struct aead_ctx *ctx = ask->private;
- unsigned int ivlen = crypto_aead_ivsize(
- crypto_aead_reqtfm(&ctx->aead_req));
-
- WARN_ON(atomic_read(&sk->sk_refcnt) != 0);
- aead_put_sgl(sk);
+ struct af_alg_ctx *ctx = ask->private;
+ struct sock *psk = ask->parent;
+ struct alg_sock *pask = alg_sk(psk);
+ struct aead_tfm *aeadc = pask->private;
+ struct crypto_aead *tfm = aeadc->aead;
+ unsigned int ivlen = crypto_aead_ivsize(tfm);
+
+ af_alg_pull_tsgl(sk, ctx->used, NULL, 0);
+ crypto_put_default_null_skcipher2();
sock_kzfree_s(sk, ctx->iv, ivlen);
sock_kfree_s(sk, ctx, ctx->len);
af_alg_release_parent(sk);
@@ -886,11 +527,11 @@ static void aead_sock_destruct(struct sock *sk)
static int aead_accept_parent_nokey(void *private, struct sock *sk)
{
- struct aead_ctx *ctx;
+ struct af_alg_ctx *ctx;
struct alg_sock *ask = alg_sk(sk);
struct aead_tfm *tfm = private;
struct crypto_aead *aead = tfm->aead;
- unsigned int len = sizeof(*ctx) + crypto_aead_reqsize(aead);
+ unsigned int len = sizeof(*ctx);
unsigned int ivlen = crypto_aead_ivsize(aead);
ctx = sock_kmalloc(sk, len, GFP_KERNEL);
@@ -905,23 +546,18 @@ static int aead_accept_parent_nokey(void *private, struct sock *sk)
}
memset(ctx->iv, 0, ivlen);
+ INIT_LIST_HEAD(&ctx->tsgl_list);
ctx->len = len;
ctx->used = 0;
+ ctx->rcvused = 0;
ctx->more = 0;
ctx->merge = 0;
ctx->enc = 0;
- ctx->tsgl.cur = 0;
ctx->aead_assoclen = 0;
af_alg_init_completion(&ctx->completion);
- sg_init_table(ctx->tsgl.sg, ALG_MAX_PAGES);
- INIT_LIST_HEAD(&ctx->list);
ask->private = ctx;
- aead_request_set_tfm(&ctx->aead_req, aead);
- aead_request_set_callback(&ctx->aead_req, CRYPTO_TFM_REQ_MAY_BACKLOG,
- af_alg_complete, &ctx->completion);
-
sk->sk_destruct = aead_sock_destruct;
return 0;
diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
index 43839b00fe6c..8ae4170aaeb4 100644
--- a/crypto/algif_skcipher.c
+++ b/crypto/algif_skcipher.c
@@ -10,6 +10,21 @@
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
+ * The following concept of the memory management is used:
+ *
+ * The kernel maintains two SGLs, the TX SGL and the RX SGL. The TX SGL is
+ * filled by user space with the data submitted via sendpage/sendmsg. Filling
+ * up the TX SGL does not cause a crypto operation -- the data will only be
+ * tracked by the kernel. Upon receipt of one recvmsg call, the caller must
+ * provide a buffer which is tracked with the RX SGL.
+ *
+ * During the processing of the recvmsg operation, the cipher request is
+ * allocated and prepared. As part of the recvmsg operation, the processed
+ * TX buffers are extracted from the TX SGL into a separate SGL.
+ *
+ * After the completion of the crypto operation, the RX SGL and the cipher
+ * request is released. The extracted TX SGL parts are released together with
+ * the RX SGL release.
*/
#include <crypto/scatterwalk.h>
@@ -18,279 +33,16 @@
#include <linux/init.h>
#include <linux/list.h>
#include <linux/kernel.h>
-#include <linux/sched/signal.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/net.h>
#include <net/sock.h>
-struct skcipher_sg_list {
- struct list_head list;
-
- int cur;
-
- struct scatterlist sg[0];
-};
-
struct skcipher_tfm {
struct crypto_skcipher *skcipher;
bool has_key;
};
-struct skcipher_ctx {
- struct list_head tsgl;
- struct af_alg_sgl rsgl;
-
- void *iv;
-
- struct af_alg_completion completion;
-
- atomic_t inflight;
- size_t used;
-
- unsigned int len;
- bool more;
- bool merge;
- bool enc;
-
- struct skcipher_request req;
-};
-
-struct skcipher_async_rsgl {
- struct af_alg_sgl sgl;
- struct list_head list;
-};
-
-struct skcipher_async_req {
- struct kiocb *iocb;
- struct skcipher_async_rsgl first_sgl;
- struct list_head list;
- struct scatterlist *tsg;
- atomic_t *inflight;
- struct skcipher_request req;
-};
-
-#define MAX_SGL_ENTS ((4096 - sizeof(struct skcipher_sg_list)) / \
- sizeof(struct scatterlist) - 1)
-
-static void skcipher_free_async_sgls(struct skcipher_async_req *sreq)
-{
- struct skcipher_async_rsgl *rsgl, *tmp;
- struct scatterlist *sgl;
- struct scatterlist *sg;
- int i, n;
-
- list_for_each_entry_safe(rsgl, tmp, &sreq->list, list) {
- af_alg_free_sg(&rsgl->sgl);
- if (rsgl != &sreq->first_sgl)
- kfree(rsgl);
- }
- sgl = sreq->tsg;
- n = sg_nents(sgl);
- for_each_sg(sgl, sg, n, i)
- put_page(sg_page(sg));
-
- kfree(sreq->tsg);
-}
-
-static void skcipher_async_cb(struct crypto_async_request *req, int err)
-{
- struct skcipher_async_req *sreq = req->data;
- struct kiocb *iocb = sreq->iocb;
-
- atomic_dec(sreq->inflight);
- skcipher_free_async_sgls(sreq);
- kzfree(sreq);
- iocb->ki_complete(iocb, err, err);
-}
-
-static inline int skcipher_sndbuf(struct sock *sk)
-{
- struct alg_sock *ask = alg_sk(sk);
- struct skcipher_ctx *ctx = ask->private;
-
- return max_t(int, max_t(int, sk->sk_sndbuf & PAGE_MASK, PAGE_SIZE) -
- ctx->used, 0);
-}
-
-static inline bool skcipher_writable(struct sock *sk)
-{
- return PAGE_SIZE <= skcipher_sndbuf(sk);
-}
-
-static int skcipher_alloc_sgl(struct sock *sk)
-{
- struct alg_sock *ask = alg_sk(sk);
- struct skcipher_ctx *ctx = ask->private;
- struct skcipher_sg_list *sgl;
- struct scatterlist *sg = NULL;
-
- sgl = list_entry(ctx->tsgl.prev, struct skcipher_sg_list, list);
- if (!list_empty(&ctx->tsgl))
- sg = sgl->sg;
-
- if (!sg || sgl->cur >= MAX_SGL_ENTS) {
- sgl = sock_kmalloc(sk, sizeof(*sgl) +
- sizeof(sgl->sg[0]) * (MAX_SGL_ENTS + 1),
- GFP_KERNEL);
- if (!sgl)
- return -ENOMEM;
-
- sg_init_table(sgl->sg, MAX_SGL_ENTS + 1);
- sgl->cur = 0;
-
- if (sg)
- sg_chain(sg, MAX_SGL_ENTS + 1, sgl->sg);
-
- list_add_tail(&sgl->list, &ctx->tsgl);
- }
-
- return 0;
-}
-
-static void skcipher_pull_sgl(struct sock *sk, size_t used, int put)
-{
- struct alg_sock *ask = alg_sk(sk);
- struct skcipher_ctx *ctx = ask->private;
- struct skcipher_sg_list *sgl;
- struct scatterlist *sg;
- int i;
-
- while (!list_empty(&ctx->tsgl)) {
- sgl = list_first_entry(&ctx->tsgl, struct skcipher_sg_list,
- list);
- sg = sgl->sg;
-
- for (i = 0; i < sgl->cur; i++) {
- size_t plen = min_t(size_t, used, sg[i].length);
-
- if (!sg_page(sg + i))
- continue;
-
- sg[i].length -= plen;
- sg[i].offset += plen;
-
- used -= plen;
- ctx->used -= plen;
-
- if (sg[i].length)
- return;
- if (put)
- put_page(sg_page(sg + i));
- sg_assign_page(sg + i, NULL);
- }
-
- list_del(&sgl->list);
- sock_kfree_s(sk, sgl,
- sizeof(*sgl) + sizeof(sgl->sg[0]) *
- (MAX_SGL_ENTS + 1));
- }
-
- if (!ctx->used)
- ctx->merge = 0;
-}
-
-static void skcipher_free_sgl(struct sock *sk)
-{
- struct alg_sock *ask = alg_sk(sk);
- struct skcipher_ctx *ctx = ask->private;
-
- skcipher_pull_sgl(sk, ctx->used, 1);
-}
-
-static int skcipher_wait_for_wmem(struct sock *sk, unsigned flags)
-{
- DEFINE_WAIT_FUNC(wait, woken_wake_function);
- int err = -ERESTARTSYS;
- long timeout;
-
- if (flags & MSG_DONTWAIT)
- return -EAGAIN;
-
- sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk);
-
- add_wait_queue(sk_sleep(sk), &wait);
- for (;;) {
- if (signal_pending(current))
- break;
- timeout = MAX_SCHEDULE_TIMEOUT;
- if (sk_wait_event(sk, &timeout, skcipher_writable(sk), &wait)) {
- err = 0;
- break;
- }
- }
- remove_wait_queue(sk_sleep(sk), &wait);
-
- return err;
-}
-
-static void skcipher_wmem_wakeup(struct sock *sk)
-{
- struct socket_wq *wq;
-
- if (!skcipher_writable(sk))
- return;
-
- rcu_read_lock();
- wq = rcu_dereference(sk->sk_wq);
- if (skwq_has_sleeper(wq))
- wake_up_interruptible_sync_poll(&wq->wait, POLLIN |
- POLLRDNORM |
- POLLRDBAND);
- sk_wake_async(sk, SOCK_WAKE_WAITD, POLL_IN);
- rcu_read_unlock();
-}
-
-static int skcipher_wait_for_data(struct sock *sk, unsigned flags)
-{
- DEFINE_WAIT_FUNC(wait, woken_wake_function);
- struct alg_sock *ask = alg_sk(sk);
- struct skcipher_ctx *ctx = ask->private;
- long timeout;
- int err = -ERESTARTSYS;
-
- if (flags & MSG_DONTWAIT) {
- return -EAGAIN;
- }
-
- sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk);
-
- add_wait_queue(sk_sleep(sk), &wait);
- for (;;) {
- if (signal_pending(current))
- break;
- timeout = MAX_SCHEDULE_TIMEOUT;
- if (sk_wait_event(sk, &timeout, ctx->used, &wait)) {
- err = 0;
- break;
- }
- }
- remove_wait_queue(sk_sleep(sk), &wait);
-
- sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk);
-
- return err;
-}
-
-static void skcipher_data_wakeup(struct sock *sk)
-{
- struct alg_sock *ask = alg_sk(sk);
- struct skcipher_ctx *ctx = ask->private;
- struct socket_wq *wq;
-
- if (!ctx->used)
- return;
-
- rcu_read_lock();
- wq = rcu_dereference(sk->sk_wq);
- if (skwq_has_sleeper(wq))
- wake_up_interruptible_sync_poll(&wq->wait, POLLOUT |
- POLLRDNORM |
- POLLRDBAND);
- sk_wake_async(sk, SOCK_WAKE_SPACE, POLL_OUT);
- rcu_read_unlock();
-}
-
static int skcipher_sendmsg(struct socket *sock, struct msghdr *msg,
size_t size)
{
@@ -298,445 +50,143 @@ static int skcipher_sendmsg(struct socket *sock, struct msghdr *msg,
struct alg_sock *ask = alg_sk(sk);
struct sock *psk = ask->parent;
struct alg_sock *pask = alg_sk(psk);
- struct skcipher_ctx *ctx = ask->private;
struct skcipher_tfm *skc = pask->private;
struct crypto_skcipher *tfm = skc->skcipher;
unsigned ivsize = crypto_skcipher_ivsize(tfm);
- struct skcipher_sg_list *sgl;
- struct af_alg_control con = {};
- long copied = 0;
- bool enc = 0;
- bool init = 0;
- int err;
- int i;
-
- if (msg->msg_controllen) {
- err = af_alg_cmsg_send(msg, &con);
- if (err)
- return err;
-
- init = 1;
- switch (con.op) {
- case ALG_OP_ENCRYPT:
- enc = 1;
- break;
- case ALG_OP_DECRYPT:
- enc = 0;
- break;
- default:
- return -EINVAL;
- }
-
- if (con.iv && con.iv->ivlen != ivsize)
- return -EINVAL;
- }
-
- err = -EINVAL;
-
- lock_sock(sk);
- if (!ctx->more && ctx->used)
- goto unlock;
-
- if (init) {
- ctx->enc = enc;
- if (con.iv)
- memcpy(ctx->iv, con.iv->iv, ivsize);
- }
-
- while (size) {
- struct scatterlist *sg;
- unsigned long len = size;
- size_t plen;
-
- if (ctx->merge) {
- sgl = list_entry(ctx->tsgl.prev,
- struct skcipher_sg_list, list);
- sg = sgl->sg + sgl->cur - 1;
- len = min_t(unsigned long, len,
- PAGE_SIZE - sg->offset - sg->length);
-
- err = memcpy_from_msg(page_address(sg_page(sg)) +
- sg->offset + sg->length,
- msg, len);
- if (err)
- goto unlock;
-
- sg->length += len;
- ctx->merge = (sg->offset + sg->length) &
- (PAGE_SIZE - 1);
-
- ctx->used += len;
- copied += len;
- size -= len;
- continue;
- }
- if (!skcipher_writable(sk)) {
- err = skcipher_wait_for_wmem(sk, msg->msg_flags);
- if (err)
- goto unlock;
- }
-
- len = min_t(unsigned long, len, skcipher_sndbuf(sk));
-
- err = skcipher_alloc_sgl(sk);
- if (err)
- goto unlock;
-
- sgl = list_entry(ctx->tsgl.prev, struct skcipher_sg_list, list);
- sg = sgl->sg;
- if (sgl->cur)
- sg_unmark_end(sg + sgl->cur - 1);
- do {
- i = sgl->cur;
- plen = min_t(size_t, len, PAGE_SIZE);
-
- sg_assign_page(sg + i, alloc_page(GFP_KERNEL));
- err = -ENOMEM;
- if (!sg_page(sg + i))
- goto unlock;
-
- err = memcpy_from_msg(page_address(sg_page(sg + i)),
- msg, plen);
- if (err) {
- __free_page(sg_page(sg + i));
- sg_assign_page(sg + i, NULL);
- goto unlock;
- }
-
- sg[i].length = plen;
- len -= plen;
- ctx->used += plen;
- copied += plen;
- size -= plen;
- sgl->cur++;
- } while (len && sgl->cur < MAX_SGL_ENTS);
-
- if (!size)
- sg_mark_end(sg + sgl->cur - 1);
-
- ctx->merge = plen & (PAGE_SIZE - 1);
- }
-
- err = 0;
-
- ctx->more = msg->msg_flags & MSG_MORE;
-
-unlock:
- skcipher_data_wakeup(sk);
- release_sock(sk);
-
- return copied ?: err;
+ return af_alg_sendmsg(sock, msg, size, ivsize);
}
-static ssize_t skcipher_sendpage(struct socket *sock, struct page *page,
- int offset, size_t size, int flags)
-{
- struct sock *sk = sock->sk;
- struct alg_sock *ask = alg_sk(sk);
- struct skcipher_ctx *ctx = ask->private;
- struct skcipher_sg_list *sgl;
- int err = -EINVAL;
-
- if (flags & MSG_SENDPAGE_NOTLAST)
- flags |= MSG_MORE;
-
- lock_sock(sk);
- if (!ctx->more && ctx->used)
- goto unlock;
-
- if (!size)
- goto done;
-
- if (!skcipher_writable(sk)) {
- err = skcipher_wait_for_wmem(sk, flags);
- if (err)
- goto unlock;
- }
-
- err = skcipher_alloc_sgl(sk);
- if (err)
- goto unlock;
-
- ctx->merge = 0;
- sgl = list_entry(ctx->tsgl.prev, struct skcipher_sg_list, list);
-
- if (sgl->cur)
- sg_unmark_end(sgl->sg + sgl->cur - 1);
-
- sg_mark_end(sgl->sg + sgl->cur);
- get_page(page);
- sg_set_page(sgl->sg + sgl->cur, page, size, offset);
- sgl->cur++;
- ctx->used += size;
-
-done:
- ctx->more = flags & MSG_MORE;
-
-unlock:
- skcipher_data_wakeup(sk);
- release_sock(sk);
-
- return err ?: size;
-}
-
-static int skcipher_all_sg_nents(struct skcipher_ctx *ctx)
-{
- struct skcipher_sg_list *sgl;
- struct scatterlist *sg;
- int nents = 0;
-
- list_for_each_entry(sgl, &ctx->tsgl, list) {
- sg = sgl->sg;
-
- while (!sg->length)
- sg++;
-
- nents += sg_nents(sg);
- }
- return nents;
-}
-
-static int skcipher_recvmsg_async(struct socket *sock, struct msghdr *msg,
- int flags)
+static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg,
+ size_t ignored, int flags)
{
struct sock *sk = sock->sk;
struct alg_sock *ask = alg_sk(sk);
struct sock *psk = ask->parent;
struct alg_sock *pask = alg_sk(psk);
- struct skcipher_ctx *ctx = ask->private;
+ struct af_alg_ctx *ctx = ask->private;
struct skcipher_tfm *skc = pask->private;
struct crypto_skcipher *tfm = skc->skcipher;
- struct skcipher_sg_list *sgl;
- struct scatterlist *sg;
- struct skcipher_async_req *sreq;
- struct skcipher_request *req;
- struct skcipher_async_rsgl *last_rsgl = NULL;
- unsigned int txbufs = 0, len = 0, tx_nents;
- unsigned int reqsize = crypto_skcipher_reqsize(tfm);
- unsigned int ivsize = crypto_skcipher_ivsize(tfm);
- int err = -ENOMEM;
- bool mark = false;
- char *iv;
-
- sreq = kzalloc(sizeof(*sreq) + reqsize + ivsize, GFP_KERNEL);
- if (unlikely(!sreq))
- goto out;
-
- req = &sreq->req;
- iv = (char *)(req + 1) + reqsize;
- sreq->iocb = msg->msg_iocb;
- INIT_LIST_HEAD(&sreq->list);
- sreq->inflight = &ctx->inflight;
+ unsigned int bs = crypto_skcipher_blocksize(tfm);
+ struct af_alg_async_req *areq;
+ int err = 0;
+ size_t len = 0;
- lock_sock(sk);
- tx_nents = skcipher_all_sg_nents(ctx);
- sreq->tsg = kcalloc(tx_nents, sizeof(*sg), GFP_KERNEL);
- if (unlikely(!sreq->tsg))
- goto unlock;
- sg_init_table(sreq->tsg, tx_nents);
- memcpy(iv, ctx->iv, ivsize);
- skcipher_request_set_tfm(req, tfm);
- skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_SLEEP,
- skcipher_async_cb, sreq);
-
- while (iov_iter_count(&msg->msg_iter)) {
- struct skcipher_async_rsgl *rsgl;
- int used;
-
- if (!ctx->used) {
- err = skcipher_wait_for_data(sk, flags);
- if (err)
- goto free;
- }
- sgl = list_first_entry(&ctx->tsgl,
- struct skcipher_sg_list, list);
- sg = sgl->sg;
-
- while (!sg->length)
- sg++;
-
- used = min_t(unsigned long, ctx->used,
- iov_iter_count(&msg->msg_iter));
- used = min_t(unsigned long, used, sg->length);
-
- if (txbufs == tx_nents) {
- struct scatterlist *tmp;
- int x;
- /* Ran out of tx slots in async request
- * need to expand */
- tmp = kcalloc(tx_nents * 2, sizeof(*tmp),
- GFP_KERNEL);
- if (!tmp) {
- err = -ENOMEM;
- goto free;
- }
-
- sg_init_table(tmp, tx_nents * 2);
- for (x = 0; x < tx_nents; x++)
- sg_set_page(&tmp[x], sg_page(&sreq->tsg[x]),
- sreq->tsg[x].length,
- sreq->tsg[x].offset);
- kfree(sreq->tsg);
- sreq->tsg = tmp;
- tx_nents *= 2;
- mark = true;
- }
- /* Need to take over the tx sgl from ctx
- * to the asynch req - these sgls will be freed later */
- sg_set_page(sreq->tsg + txbufs++, sg_page(sg), sg->length,
- sg->offset);
-
- if (list_empty(&sreq->list)) {
- rsgl = &sreq->first_sgl;
- list_add_tail(&rsgl->list, &sreq->list);
- } else {
- rsgl = kmalloc(sizeof(*rsgl), GFP_KERNEL);
- if (!rsgl) {
- err = -ENOMEM;
- goto free;
- }
- list_add_tail(&rsgl->list, &sreq->list);
- }
+ /* Allocate cipher request for current operation. */
+ areq = af_alg_alloc_areq(sk, sizeof(struct af_alg_async_req) +
+ crypto_skcipher_reqsize(tfm));
+ if (IS_ERR(areq))
+ return PTR_ERR(areq);
- used = af_alg_make_sg(&rsgl->sgl, &msg->msg_iter, used);
- err = used;
- if (used < 0)
- goto free;
- if (last_rsgl)
- af_alg_link_sg(&last_rsgl->sgl, &rsgl->sgl);
-
- last_rsgl = rsgl;
- len += used;
- skcipher_pull_sgl(sk, used, 0);
- iov_iter_advance(&msg->msg_iter, used);
+ /* convert iovecs of output buffers into RX SGL */
+ err = af_alg_get_rsgl(sk, msg, flags, areq, -1, &len);
+ if (err)
+ goto free;
+
+ /* Process only as much RX buffers for which we have TX data */
+ if (len > ctx->used)
+ len = ctx->used;
+
+ /*
+ * If more buffers are to be expected to be processed, process only
+ * full block size buffers.
+ */
+ if (ctx->more || len < ctx->used)
+ len -= len % bs;
+
+ /*
+ * Create a per request TX SGL for this request which tracks the
+ * SG entries from the global TX SGL.
+ */
+ areq->tsgl_entries = af_alg_count_tsgl(sk, len, 0);
+ if (!areq->tsgl_entries)
+ areq->tsgl_entries = 1;
+ areq->tsgl = sock_kmalloc(sk, sizeof(*areq->tsgl) * areq->tsgl_entries,
+ GFP_KERNEL);
+ if (!areq->tsgl) {
+ err = -ENOMEM;
+ goto free;
+ }
+ sg_init_table(areq->tsgl, areq->tsgl_entries);
+ af_alg_pull_tsgl(sk, len, areq->tsgl, 0);
+
+ /* Initialize the crypto operation */
+ skcipher_request_set_tfm(&areq->cra_u.skcipher_req, tfm);
+ skcipher_request_set_crypt(&areq->cra_u.skcipher_req, areq->tsgl,
+ areq->first_rsgl.sgl.sg, len, ctx->iv);
+
+ if (msg->msg_iocb && !is_sync_kiocb(msg->msg_iocb)) {
+ /* AIO operation */
+ areq->iocb = msg->msg_iocb;
+ skcipher_request_set_callback(&areq->cra_u.skcipher_req,
+ CRYPTO_TFM_REQ_MAY_SLEEP,
+ af_alg_async_cb, areq);
+ err = ctx->enc ?
+ crypto_skcipher_encrypt(&areq->cra_u.skcipher_req) :
+ crypto_skcipher_decrypt(&areq->cra_u.skcipher_req);
+ } else {
+ /* Synchronous operation */
+ skcipher_request_set_callback(&areq->cra_u.skcipher_req,
+ CRYPTO_TFM_REQ_MAY_SLEEP |
+ CRYPTO_TFM_REQ_MAY_BACKLOG,
+ af_alg_complete,
+ &ctx->completion);
+ err = af_alg_wait_for_completion(ctx->enc ?
+ crypto_skcipher_encrypt(&areq->cra_u.skcipher_req) :
+ crypto_skcipher_decrypt(&areq->cra_u.skcipher_req),
+ &ctx->completion);
}
- if (mark)
- sg_mark_end(sreq->tsg + txbufs - 1);
-
- skcipher_request_set_crypt(req, sreq->tsg, sreq->first_sgl.sgl.sg,
- len, iv);
- err = ctx->enc ? crypto_skcipher_encrypt(req) :
- crypto_skcipher_decrypt(req);
+ /* AIO operation in progress */
if (err == -EINPROGRESS) {
- atomic_inc(&ctx->inflight);
- err = -EIOCBQUEUED;
- sreq = NULL;
- goto unlock;
+ sock_hold(sk);
+
+ /* Remember output size that will be generated. */
+ areq->outlen = len;
+
+ return -EIOCBQUEUED;
}
+
free:
- skcipher_free_async_sgls(sreq);
-unlock:
- skcipher_wmem_wakeup(sk);
- release_sock(sk);
- kzfree(sreq);
-out:
- return err;
+ af_alg_free_areq_sgls(areq);
+ sock_kfree_s(sk, areq, areq->areqlen);
+
+ return err ? err : len;
}
-static int skcipher_recvmsg_sync(struct socket *sock, struct msghdr *msg,
- int flags)
+static int skcipher_recvmsg(struct socket *sock, struct msghdr *msg,
+ size_t ignored, int flags)
{
struct sock *sk = sock->sk;
- struct alg_sock *ask = alg_sk(sk);
- struct sock *psk = ask->parent;
- struct alg_sock *pask = alg_sk(psk);
- struct skcipher_ctx *ctx = ask->private;
- struct skcipher_tfm *skc = pask->private;
- struct crypto_skcipher *tfm = skc->skcipher;
- unsigned bs = crypto_skcipher_blocksize(tfm);
- struct skcipher_sg_list *sgl;
- struct scatterlist *sg;
- int err = -EAGAIN;
- int used;
- long copied = 0;
+ int ret = 0;
lock_sock(sk);
while (msg_data_left(msg)) {
- if (!ctx->used) {
- err = skcipher_wait_for_data(sk, flags);
- if (err)
- goto unlock;
+ int err = _skcipher_recvmsg(sock, msg, ignored, flags);
+
+ /*
+ * This error covers -EIOCBQUEUED which implies that we can
+ * only handle one AIO request. If the caller wants to have
+ * multiple AIO requests in parallel, he must make multiple
+ * separate AIO calls.
+ *
+ * Also return the error if no data has been processed so far.
+ */
+ if (err <= 0) {
+ if (err == -EIOCBQUEUED || !ret)
+ ret = err;
+ goto out;
}
- used = min_t(unsigned long, ctx->used, msg_data_left(msg));
-
- used = af_alg_make_sg(&ctx->rsgl, &msg->msg_iter, used);
- err = used;
- if (err < 0)
- goto unlock;
-
- if (ctx->more || used < ctx->used)
- used -= used % bs;
-
- err = -EINVAL;
- if (!used)
- goto free;
-
- sgl = list_first_entry(&ctx->tsgl,
- struct skcipher_sg_list, list);
- sg = sgl->sg;
-
- while (!sg->length)
- sg++;
-
- skcipher_request_set_crypt(&ctx->req, sg, ctx->rsgl.sg, used,
- ctx->iv);
-
- err = af_alg_wait_for_completion(
- ctx->enc ?
- crypto_skcipher_encrypt(&ctx->req) :
- crypto_skcipher_decrypt(&ctx->req),
- &ctx->completion);
-
-free:
- af_alg_free_sg(&ctx->rsgl);
-
- if (err)
- goto unlock;
-
- copied += used;
- skcipher_pull_sgl(sk, used, 1);
- iov_iter_advance(&msg->msg_iter, used);
+ ret += err;
}
- err = 0;
-
-unlock:
- skcipher_wmem_wakeup(sk);
+out:
+ af_alg_wmem_wakeup(sk);
release_sock(sk);
-
- return copied ?: err;
-}
-
-static int skcipher_recvmsg(struct socket *sock, struct msghdr *msg,
- size_t ignored, int flags)
-{
- return (msg->msg_iocb && !is_sync_kiocb(msg->msg_iocb)) ?
- skcipher_recvmsg_async(sock, msg, flags) :
- skcipher_recvmsg_sync(sock, msg, flags);
+ return ret;
}
-static unsigned int skcipher_poll(struct file *file, struct socket *sock,
- poll_table *wait)
-{
- struct sock *sk = sock->sk;
- struct alg_sock *ask = alg_sk(sk);
- struct skcipher_ctx *ctx = ask->private;
- unsigned int mask;
-
- sock_poll_wait(file, sk_sleep(sk), wait);
- mask = 0;
-
- if (ctx->used)
- mask |= POLLIN | POLLRDNORM;
-
- if (skcipher_writable(sk))
- mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
-
- return mask;
-}
static struct proto_ops algif_skcipher_ops = {
.family = PF_ALG,
@@ -755,9 +205,9 @@ static struct proto_ops algif_skcipher_ops = {
.release = af_alg_release,
.sendmsg = skcipher_sendmsg,
- .sendpage = skcipher_sendpage,
+ .sendpage = af_alg_sendpage,
.recvmsg = skcipher_recvmsg,
- .poll = skcipher_poll,
+ .poll = af_alg_poll,
};
static int skcipher_check_key(struct socket *sock)
@@ -819,7 +269,7 @@ static ssize_t skcipher_sendpage_nokey(struct socket *sock, struct page *page,
if (err)
return err;
- return skcipher_sendpage(sock, page, offset, size, flags);
+ return af_alg_sendpage(sock, page, offset, size, flags);
}
static int skcipher_recvmsg_nokey(struct socket *sock, struct msghdr *msg,
@@ -853,7 +303,7 @@ static struct proto_ops algif_skcipher_ops_nokey = {
.sendmsg = skcipher_sendmsg_nokey,
.sendpage = skcipher_sendpage_nokey,
.recvmsg = skcipher_recvmsg_nokey,
- .poll = skcipher_poll,
+ .poll = af_alg_poll,
};
static void *skcipher_bind(const char *name, u32 type, u32 mask)
@@ -895,26 +345,16 @@ static int skcipher_setkey(void *private, const u8 *key, unsigned int keylen)
return err;
}
-static void skcipher_wait(struct sock *sk)
-{
- struct alg_sock *ask = alg_sk(sk);
- struct skcipher_ctx *ctx = ask->private;
- int ctr = 0;
-
- while (atomic_read(&ctx->inflight) && ctr++ < 100)
- msleep(100);
-}
-
static void skcipher_sock_destruct(struct sock *sk)
{
struct alg_sock *ask = alg_sk(sk);
- struct skcipher_ctx *ctx = ask->private;
- struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(&ctx->req);
-
- if (atomic_read(&ctx->inflight))
- skcipher_wait(sk);
+ struct af_alg_ctx *ctx = ask->private;
+ struct sock *psk = ask->parent;
+ struct alg_sock *pask = alg_sk(psk);
+ struct skcipher_tfm *skc = pask->private;
+ struct crypto_skcipher *tfm = skc->skcipher;
- skcipher_free_sgl(sk);
+ af_alg_pull_tsgl(sk, ctx->used, NULL, 0);
sock_kzfree_s(sk, ctx->iv, crypto_skcipher_ivsize(tfm));
sock_kfree_s(sk, ctx, ctx->len);
af_alg_release_parent(sk);
@@ -922,11 +362,11 @@ static void skcipher_sock_destruct(struct sock *sk)
static int skcipher_accept_parent_nokey(void *private, struct sock *sk)
{
- struct skcipher_ctx *ctx;
+ struct af_alg_ctx *ctx;
struct alg_sock *ask = alg_sk(sk);
struct skcipher_tfm *tfm = private;
struct crypto_skcipher *skcipher = tfm->skcipher;
- unsigned int len = sizeof(*ctx) + crypto_skcipher_reqsize(skcipher);
+ unsigned int len = sizeof(*ctx);
ctx = sock_kmalloc(sk, len, GFP_KERNEL);
if (!ctx)
@@ -941,22 +381,17 @@ static int skcipher_accept_parent_nokey(void *private, struct sock *sk)
memset(ctx->iv, 0, crypto_skcipher_ivsize(skcipher));
- INIT_LIST_HEAD(&ctx->tsgl);
+ INIT_LIST_HEAD(&ctx->tsgl_list);
ctx->len = len;
ctx->used = 0;
+ ctx->rcvused = 0;
ctx->more = 0;
ctx->merge = 0;
ctx->enc = 0;
- atomic_set(&ctx->inflight, 0);
af_alg_init_completion(&ctx->completion);
ask->private = ctx;
- skcipher_request_set_tfm(&ctx->req, skcipher);
- skcipher_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_SLEEP |
- CRYPTO_TFM_REQ_MAY_BACKLOG,
- af_alg_complete, &ctx->completion);
-
sk->sk_destruct = skcipher_sock_destruct;
return 0;
diff --git a/crypto/asymmetric_keys/asymmetric_type.c b/crypto/asymmetric_keys/asymmetric_type.c
index e4b0ed386bc8..39aecad286fe 100644
--- a/crypto/asymmetric_keys/asymmetric_type.c
+++ b/crypto/asymmetric_keys/asymmetric_type.c
@@ -57,6 +57,8 @@ struct key *find_asymmetric_key(struct key *keyring,
char *req, *p;
int len;
+ BUG_ON(!id_0 && !id_1);
+
if (id_0) {
lookup = id_0->data;
len = id_0->len;
@@ -105,7 +107,7 @@ struct key *find_asymmetric_key(struct key *keyring,
if (id_0 && id_1) {
const struct asymmetric_key_ids *kids = asymmetric_key_ids(key);
- if (!kids->id[0]) {
+ if (!kids->id[1]) {
pr_debug("First ID matches, but second is missing\n");
goto reject;
}
diff --git a/crypto/asymmetric_keys/pkcs7_parser.c b/crypto/asymmetric_keys/pkcs7_parser.c
index af4cd8649117..d140d8bb2c96 100644
--- a/crypto/asymmetric_keys/pkcs7_parser.c
+++ b/crypto/asymmetric_keys/pkcs7_parser.c
@@ -88,6 +88,9 @@ static int pkcs7_check_authattrs(struct pkcs7_message *msg)
bool want = false;
sinfo = msg->signed_infos;
+ if (!sinfo)
+ goto inconsistent;
+
if (sinfo->authattrs) {
want = true;
msg->have_authattrs = true;
diff --git a/crypto/async_tx/async_pq.c b/crypto/async_tx/async_pq.c
index f83de99d7d71..56bd612927ab 100644
--- a/crypto/async_tx/async_pq.c
+++ b/crypto/async_tx/async_pq.c
@@ -62,9 +62,6 @@ do_async_gen_syndrome(struct dma_chan *chan,
dma_addr_t dma_dest[2];
int src_off = 0;
- if (submit->flags & ASYNC_TX_FENCE)
- dma_flags |= DMA_PREP_FENCE;
-
while (src_cnt > 0) {
submit->flags = flags_orig;
pq_src_cnt = min(src_cnt, dma_maxpq(dma, dma_flags));
@@ -83,6 +80,8 @@ do_async_gen_syndrome(struct dma_chan *chan,
if (cb_fn_orig)
dma_flags |= DMA_PREP_INTERRUPT;
}
+ if (submit->flags & ASYNC_TX_FENCE)
+ dma_flags |= DMA_PREP_FENCE;
/* Drivers force forward progress in case they can not provide
* a descriptor
diff --git a/crypto/authencesn.c b/crypto/authencesn.c
index 6f8f6b86bfe2..0cf5fefdb859 100644
--- a/crypto/authencesn.c
+++ b/crypto/authencesn.c
@@ -248,6 +248,9 @@ static int crypto_authenc_esn_decrypt_tail(struct aead_request *req,
u8 *ihash = ohash + crypto_ahash_digestsize(auth);
u32 tmp[2];
+ if (!authsize)
+ goto decrypt;
+
/* Move high-order bits of sequence number back. */
scatterwalk_map_and_copy(tmp, dst, 4, 4, 0);
scatterwalk_map_and_copy(tmp + 1, dst, assoclen + cryptlen, 4, 0);
@@ -256,6 +259,8 @@ static int crypto_authenc_esn_decrypt_tail(struct aead_request *req,
if (crypto_memneq(ihash, ohash, authsize))
return -EBADMSG;
+decrypt:
+
sg_init_table(areq_ctx->dst, 2);
dst = scatterwalk_ffwd(areq_ctx->dst, dst, assoclen);
diff --git a/crypto/chacha20_generic.c b/crypto/chacha20_generic.c
index 8b3c04d625c3..4a45fa4890c0 100644
--- a/crypto/chacha20_generic.c
+++ b/crypto/chacha20_generic.c
@@ -91,9 +91,14 @@ int crypto_chacha20_crypt(struct skcipher_request *req)
crypto_chacha20_init(state, ctx, walk.iv);
while (walk.nbytes > 0) {
+ unsigned int nbytes = walk.nbytes;
+
+ if (nbytes < walk.total)
+ nbytes = round_down(nbytes, walk.stride);
+
chacha20_docrypt(state, walk.dst.virt.addr, walk.src.virt.addr,
- walk.nbytes);
- err = skcipher_walk_done(&walk, 0);
+ nbytes);
+ err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
}
return err;
diff --git a/crypto/crypto_engine.c b/crypto/crypto_engine.c
index 727bd5c3569e..61e7c4e02fd2 100644
--- a/crypto/crypto_engine.c
+++ b/crypto/crypto_engine.c
@@ -70,7 +70,7 @@ static void crypto_pump_requests(struct crypto_engine *engine,
if (engine->unprepare_crypt_hardware &&
engine->unprepare_crypt_hardware(engine))
- pr_err("failed to unprepare crypt hardware\n");
+ dev_err(engine->dev, "failed to unprepare crypt hardware\n");
spin_lock_irqsave(&engine->queue_lock, flags);
engine->idling = false;
@@ -99,7 +99,7 @@ static void crypto_pump_requests(struct crypto_engine *engine,
if (!was_busy && engine->prepare_crypt_hardware) {
ret = engine->prepare_crypt_hardware(engine);
if (ret) {
- pr_err("failed to prepare crypt hardware\n");
+ dev_err(engine->dev, "failed to prepare crypt hardware\n");
goto req_err;
}
}
@@ -110,14 +110,15 @@ static void crypto_pump_requests(struct crypto_engine *engine,
if (engine->prepare_hash_request) {
ret = engine->prepare_hash_request(engine, hreq);
if (ret) {
- pr_err("failed to prepare request: %d\n", ret);
+ dev_err(engine->dev, "failed to prepare request: %d\n",
+ ret);
goto req_err;
}
engine->cur_req_prepared = true;
}
ret = engine->hash_one_request(engine, hreq);
if (ret) {
- pr_err("failed to hash one request from queue\n");
+ dev_err(engine->dev, "failed to hash one request from queue\n");
goto req_err;
}
return;
@@ -126,19 +127,20 @@ static void crypto_pump_requests(struct crypto_engine *engine,
if (engine->prepare_cipher_request) {
ret = engine->prepare_cipher_request(engine, breq);
if (ret) {
- pr_err("failed to prepare request: %d\n", ret);
+ dev_err(engine->dev, "failed to prepare request: %d\n",
+ ret);
goto req_err;
}
engine->cur_req_prepared = true;
}
ret = engine->cipher_one_request(engine, breq);
if (ret) {
- pr_err("failed to cipher one request from queue\n");
+ dev_err(engine->dev, "failed to cipher one request from queue\n");
goto req_err;
}
return;
default:
- pr_err("failed to prepare request of unknown type\n");
+ dev_err(engine->dev, "failed to prepare request of unknown type\n");
return;
}
@@ -275,7 +277,7 @@ void crypto_finalize_cipher_request(struct crypto_engine *engine,
engine->unprepare_cipher_request) {
ret = engine->unprepare_cipher_request(engine, req);
if (ret)
- pr_err("failed to unprepare request\n");
+ dev_err(engine->dev, "failed to unprepare request\n");
}
spin_lock_irqsave(&engine->queue_lock, flags);
engine->cur_req = NULL;
@@ -312,7 +314,7 @@ void crypto_finalize_hash_request(struct crypto_engine *engine,
engine->unprepare_hash_request) {
ret = engine->unprepare_hash_request(engine, req);
if (ret)
- pr_err("failed to unprepare request\n");
+ dev_err(engine->dev, "failed to unprepare request\n");
}
spin_lock_irqsave(&engine->queue_lock, flags);
engine->cur_req = NULL;
@@ -384,7 +386,7 @@ int crypto_engine_stop(struct crypto_engine *engine)
spin_unlock_irqrestore(&engine->queue_lock, flags);
if (ret)
- pr_warn("could not stop engine\n");
+ dev_warn(engine->dev, "could not stop engine\n");
return ret;
}
@@ -411,6 +413,7 @@ struct crypto_engine *crypto_engine_alloc_init(struct device *dev, bool rt)
if (!engine)
return NULL;
+ engine->dev = dev;
engine->rt = rt;
engine->running = false;
engine->busy = false;
diff --git a/crypto/ctr.c b/crypto/ctr.c
index 477d9226ccaa..854d924f9d8e 100644
--- a/crypto/ctr.c
+++ b/crypto/ctr.c
@@ -65,8 +65,7 @@ static void crypto_ctr_crypt_final(struct blkcipher_walk *walk,
unsigned int nbytes = walk->nbytes;
crypto_cipher_encrypt_one(tfm, keystream, ctrblk);
- crypto_xor(keystream, src, nbytes);
- memcpy(dst, keystream, nbytes);
+ crypto_xor_cpy(dst, keystream, src, nbytes);
crypto_inc(ctrblk, bsize);
}
diff --git a/crypto/dh.c b/crypto/dh.c
index 87e3542cf1b8..b1032a5c1bfa 100644
--- a/crypto/dh.c
+++ b/crypto/dh.c
@@ -4,9 +4,9 @@
* Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
*
* This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
+ * modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
+ * 2 of the License, or (at your option) any later version.
*/
#include <linux/module.h>
@@ -85,6 +85,9 @@ static int dh_set_secret(struct crypto_kpp *tfm, const void *buf,
struct dh_ctx *ctx = dh_get_ctx(tfm);
struct dh params;
+ /* Free the old MPI key if any */
+ dh_free_ctx(ctx);
+
if (crypto_dh_decode_key(buf, len, &params) < 0)
return -EINVAL;
@@ -144,7 +147,7 @@ err_free_val:
return ret;
}
-static int dh_max_size(struct crypto_kpp *tfm)
+static unsigned int dh_max_size(struct crypto_kpp *tfm)
{
struct dh_ctx *ctx = dh_get_ctx(tfm);
diff --git a/crypto/dh_helper.c b/crypto/dh_helper.c
index 02db76b20d00..8ba8a3f82620 100644
--- a/crypto/dh_helper.c
+++ b/crypto/dh_helper.c
@@ -3,9 +3,9 @@
* Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
*
* This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
+ * modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
+ * 2 of the License, or (at your option) any later version.
*/
#include <linux/kernel.h>
#include <linux/export.h>
diff --git a/crypto/drbg.c b/crypto/drbg.c
index cdb27ac4b226..70018397e59a 100644
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -1133,10 +1133,10 @@ static inline void drbg_dealloc_state(struct drbg_state *drbg)
{
if (!drbg)
return;
- kzfree(drbg->V);
- drbg->Vbuf = NULL;
- kzfree(drbg->C);
- drbg->Cbuf = NULL;
+ kzfree(drbg->Vbuf);
+ drbg->V = NULL;
+ kzfree(drbg->Cbuf);
+ drbg->C = NULL;
kzfree(drbg->scratchpadbuf);
drbg->scratchpadbuf = NULL;
drbg->reseed_ctr = 0;
@@ -1691,6 +1691,7 @@ static int drbg_init_sym_kernel(struct drbg_state *drbg)
return PTR_ERR(sk_tfm);
}
drbg->ctr_handle = sk_tfm;
+ init_completion(&drbg->ctr_completion);
req = skcipher_request_alloc(sk_tfm, GFP_KERNEL);
if (!req) {
diff --git a/crypto/ecc.c b/crypto/ecc.c
index 414c78a9c214..633a9bcdc574 100644
--- a/crypto/ecc.c
+++ b/crypto/ecc.c
@@ -29,6 +29,7 @@
#include <linux/swab.h>
#include <linux/fips.h>
#include <crypto/ecdh.h>
+#include <crypto/rng.h>
#include "ecc.h"
#include "ecc_curve_defs.h"
@@ -904,7 +905,7 @@ static inline void ecc_swap_digits(const u64 *in, u64 *out,
}
int ecc_is_key_valid(unsigned int curve_id, unsigned int ndigits,
- const u8 *private_key, unsigned int private_key_len)
+ const u64 *private_key, unsigned int private_key_len)
{
int nbytes;
const struct ecc_curve *curve = ecc_get_curve(curve_id);
@@ -917,24 +918,77 @@ int ecc_is_key_valid(unsigned int curve_id, unsigned int ndigits,
if (private_key_len != nbytes)
return -EINVAL;
- if (vli_is_zero((const u64 *)&private_key[0], ndigits))
+ if (vli_is_zero(private_key, ndigits))
return -EINVAL;
/* Make sure the private key is in the range [1, n-1]. */
- if (vli_cmp(curve->n, (const u64 *)&private_key[0], ndigits) != 1)
+ if (vli_cmp(curve->n, private_key, ndigits) != 1)
return -EINVAL;
return 0;
}
-int ecdh_make_pub_key(unsigned int curve_id, unsigned int ndigits,
- const u8 *private_key, unsigned int private_key_len,
- u8 *public_key, unsigned int public_key_len)
+/*
+ * ECC private keys are generated using the method of extra random bits,
+ * equivalent to that described in FIPS 186-4, Appendix B.4.1.
+ *
+ * d = (c mod(n–1)) + 1 where c is a string of random bits, 64 bits longer
+ * than requested
+ * 0 <= c mod(n-1) <= n-2 and implies that
+ * 1 <= d <= n-1
+ *
+ * This method generates a private key uniformly distributed in the range
+ * [1, n-1].
+ */
+int ecc_gen_privkey(unsigned int curve_id, unsigned int ndigits, u64 *privkey)
+{
+ const struct ecc_curve *curve = ecc_get_curve(curve_id);
+ u64 priv[ndigits];
+ unsigned int nbytes = ndigits << ECC_DIGITS_TO_BYTES_SHIFT;
+ unsigned int nbits = vli_num_bits(curve->n, ndigits);
+ int err;
+
+ /* Check that N is included in Table 1 of FIPS 186-4, section 6.1.1 */
+ if (nbits < 160)
+ return -EINVAL;
+
+ /*
+ * FIPS 186-4 recommends that the private key should be obtained from a
+ * RBG with a security strength equal to or greater than the security
+ * strength associated with N.
+ *
+ * The maximum security strength identified by NIST SP800-57pt1r4 for
+ * ECC is 256 (N >= 512).
+ *
+ * This condition is met by the default RNG because it selects a favored
+ * DRBG with a security strength of 256.
+ */
+ if (crypto_get_default_rng())
+ err = -EFAULT;
+
+ err = crypto_rng_get_bytes(crypto_default_rng, (u8 *)priv, nbytes);
+ crypto_put_default_rng();
+ if (err)
+ return err;
+
+ if (vli_is_zero(priv, ndigits))
+ return -EINVAL;
+
+ /* Make sure the private key is in the range [1, n-1]. */
+ if (vli_cmp(curve->n, priv, ndigits) != 1)
+ return -EINVAL;
+
+ ecc_swap_digits(priv, privkey, ndigits);
+
+ return 0;
+}
+
+int ecc_make_pub_key(unsigned int curve_id, unsigned int ndigits,
+ const u64 *private_key, u64 *public_key)
{
int ret = 0;
struct ecc_point *pk;
u64 priv[ndigits];
- unsigned int nbytes;
const struct ecc_curve *curve = ecc_get_curve(curve_id);
if (!private_key || !curve) {
@@ -942,7 +996,7 @@ int ecdh_make_pub_key(unsigned int curve_id, unsigned int ndigits,
goto out;
}
- ecc_swap_digits((const u64 *)private_key, priv, ndigits);
+ ecc_swap_digits(private_key, priv, ndigits);
pk = ecc_alloc_point(ndigits);
if (!pk) {
@@ -956,9 +1010,8 @@ int ecdh_make_pub_key(unsigned int curve_id, unsigned int ndigits,
goto err_free_point;
}
- nbytes = ndigits << ECC_DIGITS_TO_BYTES_SHIFT;
- ecc_swap_digits(pk->x, (u64 *)public_key, ndigits);
- ecc_swap_digits(pk->y, (u64 *)&public_key[nbytes], ndigits);
+ ecc_swap_digits(pk->x, public_key, ndigits);
+ ecc_swap_digits(pk->y, &public_key[ndigits], ndigits);
err_free_point:
ecc_free_point(pk);
@@ -967,9 +1020,8 @@ out:
}
int crypto_ecdh_shared_secret(unsigned int curve_id, unsigned int ndigits,
- const u8 *private_key, unsigned int private_key_len,
- const u8 *public_key, unsigned int public_key_len,
- u8 *secret, unsigned int secret_len)
+ const u64 *private_key, const u64 *public_key,
+ u64 *secret)
{
int ret = 0;
struct ecc_point *product, *pk;
@@ -999,13 +1051,13 @@ int crypto_ecdh_shared_secret(unsigned int curve_id, unsigned int ndigits,
goto err_alloc_product;
}
- ecc_swap_digits((const u64 *)public_key, pk->x, ndigits);
- ecc_swap_digits((const u64 *)&public_key[nbytes], pk->y, ndigits);
- ecc_swap_digits((const u64 *)private_key, priv, ndigits);
+ ecc_swap_digits(public_key, pk->x, ndigits);
+ ecc_swap_digits(&public_key[ndigits], pk->y, ndigits);
+ ecc_swap_digits(private_key, priv, ndigits);
ecc_point_mult(product, pk, priv, rand_z, curve->p, ndigits);
- ecc_swap_digits(product->x, (u64 *)secret, ndigits);
+ ecc_swap_digits(product->x, secret, ndigits);
if (ecc_point_is_zero(product))
ret = -EFAULT;
diff --git a/crypto/ecc.h b/crypto/ecc.h
index 663d598c7406..e4fd4492c765 100644
--- a/crypto/ecc.h
+++ b/crypto/ecc.h
@@ -34,41 +34,51 @@
* ecc_is_key_valid() - Validate a given ECDH private key
*
* @curve_id: id representing the curve to use
- * @ndigits: curve number of digits
+ * @ndigits: curve's number of digits
* @private_key: private key to be used for the given curve
- * @private_key_len: private key len
+ * @private_key_len: private key length
*
* Returns 0 if the key is acceptable, a negative value otherwise
*/
int ecc_is_key_valid(unsigned int curve_id, unsigned int ndigits,
- const u8 *private_key, unsigned int private_key_len);
+ const u64 *private_key, unsigned int private_key_len);
+
+/**
+ * ecc_gen_privkey() - Generates an ECC private key.
+ * The private key is a random integer in the range 0 < random < n, where n is a
+ * prime that is the order of the cyclic subgroup generated by the distinguished
+ * point G.
+ * @curve_id: id representing the curve to use
+ * @ndigits: curve number of digits
+ * @private_key: buffer for storing the generated private key
+ *
+ * Returns 0 if the private key was generated successfully, a negative value
+ * if an error occurred.
+ */
+int ecc_gen_privkey(unsigned int curve_id, unsigned int ndigits, u64 *privkey);
/**
- * ecdh_make_pub_key() - Compute an ECC public key
+ * ecc_make_pub_key() - Compute an ECC public key
*
* @curve_id: id representing the curve to use
+ * @ndigits: curve's number of digits
* @private_key: pregenerated private key for the given curve
- * @private_key_len: length of private_key
- * @public_key: buffer for storing the public key generated
- * @public_key_len: length of the public_key buffer
+ * @public_key: buffer for storing the generated public key
*
* Returns 0 if the public key was generated successfully, a negative value
* if an error occurred.
*/
-int ecdh_make_pub_key(const unsigned int curve_id, unsigned int ndigits,
- const u8 *private_key, unsigned int private_key_len,
- u8 *public_key, unsigned int public_key_len);
+int ecc_make_pub_key(const unsigned int curve_id, unsigned int ndigits,
+ const u64 *private_key, u64 *public_key);
/**
* crypto_ecdh_shared_secret() - Compute a shared secret
*
* @curve_id: id representing the curve to use
+ * @ndigits: curve's number of digits
* @private_key: private key of part A
- * @private_key_len: length of private_key
* @public_key: public key of counterpart B
- * @public_key_len: length of public_key
* @secret: buffer for storing the calculated shared secret
- * @secret_len: length of the secret buffer
*
* Note: It is recommended that you hash the result of crypto_ecdh_shared_secret
* before using it for symmetric encryption or HMAC.
@@ -77,7 +87,6 @@ int ecdh_make_pub_key(const unsigned int curve_id, unsigned int ndigits,
* if an error occurred.
*/
int crypto_ecdh_shared_secret(unsigned int curve_id, unsigned int ndigits,
- const u8 *private_key, unsigned int private_key_len,
- const u8 *public_key, unsigned int public_key_len,
- u8 *secret, unsigned int secret_len);
+ const u64 *private_key, const u64 *public_key,
+ u64 *secret);
#endif
diff --git a/crypto/ecdh.c b/crypto/ecdh.c
index 63ca33771e4e..4271fc77d261 100644
--- a/crypto/ecdh.c
+++ b/crypto/ecdh.c
@@ -4,9 +4,9 @@
* Authors: Salvator Benedetto <salvatore.benedetto@intel.com>
*
* This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
+ * modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
+ * 2 of the License, or (at your option) any later version.
*/
#include <linux/module.h>
@@ -20,8 +20,6 @@ struct ecdh_ctx {
unsigned int curve_id;
unsigned int ndigits;
u64 private_key[ECC_MAX_DIGITS];
- u64 public_key[2 * ECC_MAX_DIGITS];
- u64 shared_secret[ECC_MAX_DIGITS];
};
static inline struct ecdh_ctx *ecdh_get_ctx(struct crypto_kpp *tfm)
@@ -55,8 +53,12 @@ static int ecdh_set_secret(struct crypto_kpp *tfm, const void *buf,
ctx->curve_id = params.curve_id;
ctx->ndigits = ndigits;
+ if (!params.key || !params.key_size)
+ return ecc_gen_privkey(ctx->curve_id, ctx->ndigits,
+ ctx->private_key);
+
if (ecc_is_key_valid(ctx->curve_id, ctx->ndigits,
- (const u8 *)params.key, params.key_size) < 0)
+ (const u64 *)params.key, params.key_size) < 0)
return -EINVAL;
memcpy(ctx->private_key, params.key, params.key_size);
@@ -66,53 +68,67 @@ static int ecdh_set_secret(struct crypto_kpp *tfm, const void *buf,
static int ecdh_compute_value(struct kpp_request *req)
{
- int ret = 0;
struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
struct ecdh_ctx *ctx = ecdh_get_ctx(tfm);
- size_t copied, nbytes;
+ u64 *public_key;
+ u64 *shared_secret = NULL;
void *buf;
+ size_t copied, nbytes, public_key_sz;
+ int ret = -ENOMEM;
nbytes = ctx->ndigits << ECC_DIGITS_TO_BYTES_SHIFT;
+ /* Public part is a point thus it has both coordinates */
+ public_key_sz = 2 * nbytes;
+
+ public_key = kmalloc(public_key_sz, GFP_KERNEL);
+ if (!public_key)
+ return -ENOMEM;
if (req->src) {
- copied = sg_copy_to_buffer(req->src, 1, ctx->public_key,
- 2 * nbytes);
- if (copied != 2 * nbytes)
- return -EINVAL;
+ shared_secret = kmalloc(nbytes, GFP_KERNEL);
+ if (!shared_secret)
+ goto free_pubkey;
+
+ copied = sg_copy_to_buffer(req->src, 1, public_key,
+ public_key_sz);
+ if (copied != public_key_sz) {
+ ret = -EINVAL;
+ goto free_all;
+ }
ret = crypto_ecdh_shared_secret(ctx->curve_id, ctx->ndigits,
- (const u8 *)ctx->private_key, nbytes,
- (const u8 *)ctx->public_key, 2 * nbytes,
- (u8 *)ctx->shared_secret, nbytes);
+ ctx->private_key, public_key,
+ shared_secret);
- buf = ctx->shared_secret;
+ buf = shared_secret;
} else {
- ret = ecdh_make_pub_key(ctx->curve_id, ctx->ndigits,
- (const u8 *)ctx->private_key, nbytes,
- (u8 *)ctx->public_key,
- sizeof(ctx->public_key));
- buf = ctx->public_key;
- /* Public part is a point thus it has both coordinates */
- nbytes *= 2;
+ ret = ecc_make_pub_key(ctx->curve_id, ctx->ndigits,
+ ctx->private_key, public_key);
+ buf = public_key;
+ nbytes = public_key_sz;
}
if (ret < 0)
- return ret;
+ goto free_all;
copied = sg_copy_from_buffer(req->dst, 1, buf, nbytes);
if (copied != nbytes)
- return -EINVAL;
+ ret = -EINVAL;
+ /* fall through */
+free_all:
+ kzfree(shared_secret);
+free_pubkey:
+ kfree(public_key);
return ret;
}
-static int ecdh_max_size(struct crypto_kpp *tfm)
+static unsigned int ecdh_max_size(struct crypto_kpp *tfm)
{
struct ecdh_ctx *ctx = ecdh_get_ctx(tfm);
- int nbytes = ctx->ndigits << ECC_DIGITS_TO_BYTES_SHIFT;
- /* Public key is made of two coordinates */
- return 2 * nbytes;
+ /* Public key is made of two coordinates, add one to the left shift */
+ return ctx->ndigits << (ECC_DIGITS_TO_BYTES_SHIFT + 1);
}
static void no_exit_tfm(struct crypto_kpp *tfm)
diff --git a/crypto/ecdh_helper.c b/crypto/ecdh_helper.c
index 3cd8a2414e60..f05bea5fd257 100644
--- a/crypto/ecdh_helper.c
+++ b/crypto/ecdh_helper.c
@@ -3,9 +3,9 @@
* Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
*
* This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
+ * modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
+ * 2 of the License, or (at your option) any later version.
*/
#include <linux/kernel.h>
#include <linux/export.h>
diff --git a/crypto/hmac.c b/crypto/hmac.c
index 72e38c098bb3..92871dc2a63e 100644
--- a/crypto/hmac.c
+++ b/crypto/hmac.c
@@ -16,6 +16,7 @@
*
*/
+#include <crypto/hmac.h>
#include <crypto/internal/hash.h>
#include <crypto/scatterwalk.h>
#include <linux/err.h>
@@ -74,8 +75,8 @@ static int hmac_setkey(struct crypto_shash *parent,
memcpy(opad, ipad, bs);
for (i = 0; i < bs; i++) {
- ipad[i] ^= 0x36;
- opad[i] ^= 0x5c;
+ ipad[i] ^= HMAC_IPAD_VALUE;
+ opad[i] ^= HMAC_OPAD_VALUE;
}
return crypto_shash_init(shash) ?:
diff --git a/crypto/pcbc.c b/crypto/pcbc.c
index 29dd2b4a3b85..d9e45a958720 100644
--- a/crypto/pcbc.c
+++ b/crypto/pcbc.c
@@ -55,8 +55,7 @@ static int crypto_pcbc_encrypt_segment(struct skcipher_request *req,
do {
crypto_xor(iv, src, bsize);
crypto_cipher_encrypt_one(tfm, dst, iv);
- memcpy(iv, dst, bsize);
- crypto_xor(iv, src, bsize);
+ crypto_xor_cpy(iv, dst, src, bsize);
src += bsize;
dst += bsize;
@@ -79,8 +78,7 @@ static int crypto_pcbc_encrypt_inplace(struct skcipher_request *req,
memcpy(tmpbuf, src, bsize);
crypto_xor(iv, src, bsize);
crypto_cipher_encrypt_one(tfm, src, iv);
- memcpy(iv, tmpbuf, bsize);
- crypto_xor(iv, src, bsize);
+ crypto_xor_cpy(iv, tmpbuf, src, bsize);
src += bsize;
} while ((nbytes -= bsize) >= bsize);
@@ -127,8 +125,7 @@ static int crypto_pcbc_decrypt_segment(struct skcipher_request *req,
do {
crypto_cipher_decrypt_one(tfm, dst, src);
crypto_xor(dst, iv, bsize);
- memcpy(iv, src, bsize);
- crypto_xor(iv, dst, bsize);
+ crypto_xor_cpy(iv, dst, src, bsize);
src += bsize;
dst += bsize;
@@ -153,8 +150,7 @@ static int crypto_pcbc_decrypt_inplace(struct skcipher_request *req,
memcpy(tmpbuf, src, bsize);
crypto_cipher_decrypt_one(tfm, src, src);
crypto_xor(src, iv, bsize);
- memcpy(iv, tmpbuf, bsize);
- crypto_xor(iv, src, bsize);
+ crypto_xor_cpy(iv, src, tmpbuf, bsize);
src += bsize;
} while ((nbytes -= bsize) >= bsize);
diff --git a/crypto/rng.c b/crypto/rng.c
index f46dac5288b9..b4a618668161 100644
--- a/crypto/rng.c
+++ b/crypto/rng.c
@@ -33,11 +33,6 @@ struct crypto_rng *crypto_default_rng;
EXPORT_SYMBOL_GPL(crypto_default_rng);
static int crypto_default_rng_refcnt;
-static inline struct crypto_rng *__crypto_rng_cast(struct crypto_tfm *tfm)
-{
- return container_of(tfm, struct crypto_rng, base);
-}
-
int crypto_rng_reset(struct crypto_rng *tfm, const u8 *seed, unsigned int slen)
{
u8 *buf = NULL;
@@ -48,12 +43,14 @@ int crypto_rng_reset(struct crypto_rng *tfm, const u8 *seed, unsigned int slen)
if (!buf)
return -ENOMEM;
- get_random_bytes(buf, slen);
+ err = get_random_bytes_wait(buf, slen);
+ if (err)
+ goto out;
seed = buf;
}
err = crypto_rng_alg(tfm)->seed(tfm, seed, slen);
-
+out:
kzfree(buf);
return err;
}
diff --git a/crypto/rsa-pkcs1pad.c b/crypto/rsa-pkcs1pad.c
index 8baab4307f7b..407c64bdcdd9 100644
--- a/crypto/rsa-pkcs1pad.c
+++ b/crypto/rsa-pkcs1pad.c
@@ -120,9 +120,6 @@ static int pkcs1pad_set_pub_key(struct crypto_akcipher *tfm, const void *key,
/* Find out new modulus size from rsa implementation */
err = crypto_akcipher_maxsize(ctx->child);
- if (err < 0)
- return err;
-
if (err > PAGE_SIZE)
return -ENOTSUPP;
@@ -144,9 +141,6 @@ static int pkcs1pad_set_priv_key(struct crypto_akcipher *tfm, const void *key,
/* Find out new modulus size from rsa implementation */
err = crypto_akcipher_maxsize(ctx->child);
- if (err < 0)
- return err;
-
if (err > PAGE_SIZE)
return -ENOTSUPP;
@@ -154,7 +148,7 @@ static int pkcs1pad_set_priv_key(struct crypto_akcipher *tfm, const void *key,
return 0;
}
-static int pkcs1pad_get_max_size(struct crypto_akcipher *tfm)
+static unsigned int pkcs1pad_get_max_size(struct crypto_akcipher *tfm)
{
struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
@@ -164,7 +158,7 @@ static int pkcs1pad_get_max_size(struct crypto_akcipher *tfm)
* decrypt/verify.
*/
- return ctx->key_size ?: -EINVAL;
+ return ctx->key_size;
}
static void pkcs1pad_sg_set_buf(struct scatterlist *sg, void *buf, size_t len,
@@ -496,7 +490,7 @@ static int pkcs1pad_verify_complete(struct akcipher_request *req, int err)
goto done;
pos++;
- if (memcmp(out_buf + pos, digest_info->data, digest_info->size))
+ if (crypto_memneq(out_buf + pos, digest_info->data, digest_info->size))
goto done;
pos += digest_info->size;
diff --git a/crypto/rsa.c b/crypto/rsa.c
index 4c280b6a3ea9..b067f3a93880 100644
--- a/crypto/rsa.c
+++ b/crypto/rsa.c
@@ -337,11 +337,11 @@ err:
return -ENOMEM;
}
-static int rsa_max_size(struct crypto_akcipher *tfm)
+static unsigned int rsa_max_size(struct crypto_akcipher *tfm)
{
struct rsa_mpi_key *pkey = akcipher_tfm_ctx(tfm);
- return pkey->n ? mpi_get_size(pkey->n) : -EINVAL;
+ return mpi_get_size(pkey->n);
}
static void rsa_exit_tfm(struct crypto_akcipher *tfm)
diff --git a/crypto/scompress.c b/crypto/scompress.c
index ae1d3cf209e4..2075e2c4e7df 100644
--- a/crypto/scompress.c
+++ b/crypto/scompress.c
@@ -65,11 +65,6 @@ static void crypto_scomp_show(struct seq_file *m, struct crypto_alg *alg)
seq_puts(m, "type : scomp\n");
}
-static int crypto_scomp_init_tfm(struct crypto_tfm *tfm)
-{
- return 0;
-}
-
static void crypto_scomp_free_scratches(void * __percpu *scratches)
{
int i;
@@ -125,12 +120,26 @@ static int crypto_scomp_alloc_all_scratches(void)
if (!scomp_src_scratches)
return -ENOMEM;
scomp_dst_scratches = crypto_scomp_alloc_scratches();
- if (!scomp_dst_scratches)
+ if (!scomp_dst_scratches) {
+ crypto_scomp_free_scratches(scomp_src_scratches);
+ scomp_src_scratches = NULL;
return -ENOMEM;
+ }
}
return 0;
}
+static int crypto_scomp_init_tfm(struct crypto_tfm *tfm)
+{
+ int ret;
+
+ mutex_lock(&scomp_lock);
+ ret = crypto_scomp_alloc_all_scratches();
+ mutex_unlock(&scomp_lock);
+
+ return ret;
+}
+
static void crypto_scomp_sg_free(struct scatterlist *sgl)
{
int i, n;
@@ -211,9 +220,7 @@ static int scomp_acomp_comp_decomp(struct acomp_req *req, int dir)
scratch_dst, &req->dlen, *ctx);
if (!ret) {
if (!req->dst) {
- req->dst = crypto_scomp_sg_alloc(req->dlen,
- req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ?
- GFP_KERNEL : GFP_ATOMIC);
+ req->dst = crypto_scomp_sg_alloc(req->dlen, GFP_ATOMIC);
if (!req->dst)
goto out;
}
@@ -240,6 +247,10 @@ static void crypto_exit_scomp_ops_async(struct crypto_tfm *tfm)
struct crypto_scomp **ctx = crypto_tfm_ctx(tfm);
crypto_free_scomp(*ctx);
+
+ mutex_lock(&scomp_lock);
+ crypto_scomp_free_all_scratches();
+ mutex_unlock(&scomp_lock);
}
int crypto_init_scomp_ops_async(struct crypto_tfm *tfm)
@@ -316,40 +327,18 @@ static const struct crypto_type crypto_scomp_type = {
int crypto_register_scomp(struct scomp_alg *alg)
{
struct crypto_alg *base = &alg->base;
- int ret = -ENOMEM;
-
- mutex_lock(&scomp_lock);
- if (crypto_scomp_alloc_all_scratches())
- goto error;
base->cra_type = &crypto_scomp_type;
base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
base->cra_flags |= CRYPTO_ALG_TYPE_SCOMPRESS;
- ret = crypto_register_alg(base);
- if (ret)
- goto error;
-
- mutex_unlock(&scomp_lock);
- return ret;
-
-error:
- crypto_scomp_free_all_scratches();
- mutex_unlock(&scomp_lock);
- return ret;
+ return crypto_register_alg(base);
}
EXPORT_SYMBOL_GPL(crypto_register_scomp);
int crypto_unregister_scomp(struct scomp_alg *alg)
{
- int ret;
-
- mutex_lock(&scomp_lock);
- ret = crypto_unregister_alg(&alg->base);
- crypto_scomp_free_all_scratches();
- mutex_unlock(&scomp_lock);
-
- return ret;
+ return crypto_unregister_alg(&alg->base);
}
EXPORT_SYMBOL_GPL(crypto_unregister_scomp);
diff --git a/crypto/serpent_generic.c b/crypto/serpent_generic.c
index 94970a794975..7c3382facc82 100644
--- a/crypto/serpent_generic.c
+++ b/crypto/serpent_generic.c
@@ -229,6 +229,46 @@
x4 ^= x2; \
})
+static void __serpent_setkey_sbox(u32 r0, u32 r1, u32 r2, u32 r3, u32 r4, u32 *k)
+{
+ k += 100;
+ S3(r3, r4, r0, r1, r2); store_and_load_keys(r1, r2, r4, r3, 28, 24);
+ S4(r1, r2, r4, r3, r0); store_and_load_keys(r2, r4, r3, r0, 24, 20);
+ S5(r2, r4, r3, r0, r1); store_and_load_keys(r1, r2, r4, r0, 20, 16);
+ S6(r1, r2, r4, r0, r3); store_and_load_keys(r4, r3, r2, r0, 16, 12);
+ S7(r4, r3, r2, r0, r1); store_and_load_keys(r1, r2, r0, r4, 12, 8);
+ S0(r1, r2, r0, r4, r3); store_and_load_keys(r0, r2, r4, r1, 8, 4);
+ S1(r0, r2, r4, r1, r3); store_and_load_keys(r3, r4, r1, r0, 4, 0);
+ S2(r3, r4, r1, r0, r2); store_and_load_keys(r2, r4, r3, r0, 0, -4);
+ S3(r2, r4, r3, r0, r1); store_and_load_keys(r0, r1, r4, r2, -4, -8);
+ S4(r0, r1, r4, r2, r3); store_and_load_keys(r1, r4, r2, r3, -8, -12);
+ S5(r1, r4, r2, r3, r0); store_and_load_keys(r0, r1, r4, r3, -12, -16);
+ S6(r0, r1, r4, r3, r2); store_and_load_keys(r4, r2, r1, r3, -16, -20);
+ S7(r4, r2, r1, r3, r0); store_and_load_keys(r0, r1, r3, r4, -20, -24);
+ S0(r0, r1, r3, r4, r2); store_and_load_keys(r3, r1, r4, r0, -24, -28);
+ k -= 50;
+ S1(r3, r1, r4, r0, r2); store_and_load_keys(r2, r4, r0, r3, 22, 18);
+ S2(r2, r4, r0, r3, r1); store_and_load_keys(r1, r4, r2, r3, 18, 14);
+ S3(r1, r4, r2, r3, r0); store_and_load_keys(r3, r0, r4, r1, 14, 10);
+ S4(r3, r0, r4, r1, r2); store_and_load_keys(r0, r4, r1, r2, 10, 6);
+ S5(r0, r4, r1, r2, r3); store_and_load_keys(r3, r0, r4, r2, 6, 2);
+ S6(r3, r0, r4, r2, r1); store_and_load_keys(r4, r1, r0, r2, 2, -2);
+ S7(r4, r1, r0, r2, r3); store_and_load_keys(r3, r0, r2, r4, -2, -6);
+ S0(r3, r0, r2, r4, r1); store_and_load_keys(r2, r0, r4, r3, -6, -10);
+ S1(r2, r0, r4, r3, r1); store_and_load_keys(r1, r4, r3, r2, -10, -14);
+ S2(r1, r4, r3, r2, r0); store_and_load_keys(r0, r4, r1, r2, -14, -18);
+ S3(r0, r4, r1, r2, r3); store_and_load_keys(r2, r3, r4, r0, -18, -22);
+ k -= 50;
+ S4(r2, r3, r4, r0, r1); store_and_load_keys(r3, r4, r0, r1, 28, 24);
+ S5(r3, r4, r0, r1, r2); store_and_load_keys(r2, r3, r4, r1, 24, 20);
+ S6(r2, r3, r4, r1, r0); store_and_load_keys(r4, r0, r3, r1, 20, 16);
+ S7(r4, r0, r3, r1, r2); store_and_load_keys(r2, r3, r1, r4, 16, 12);
+ S0(r2, r3, r1, r4, r0); store_and_load_keys(r1, r3, r4, r2, 12, 8);
+ S1(r1, r3, r4, r2, r0); store_and_load_keys(r0, r4, r2, r1, 8, 4);
+ S2(r0, r4, r2, r1, r3); store_and_load_keys(r3, r4, r0, r1, 4, 0);
+ S3(r3, r4, r0, r1, r2); storekeys(r1, r2, r4, r3, 0);
+}
+
int __serpent_setkey(struct serpent_ctx *ctx, const u8 *key,
unsigned int keylen)
{
@@ -395,42 +435,7 @@ int __serpent_setkey(struct serpent_ctx *ctx, const u8 *key,
keyiter(k[23], r1, r0, r3, 131, 31);
/* Apply S-boxes */
-
- S3(r3, r4, r0, r1, r2); store_and_load_keys(r1, r2, r4, r3, 28, 24);
- S4(r1, r2, r4, r3, r0); store_and_load_keys(r2, r4, r3, r0, 24, 20);
- S5(r2, r4, r3, r0, r1); store_and_load_keys(r1, r2, r4, r0, 20, 16);
- S6(r1, r2, r4, r0, r3); store_and_load_keys(r4, r3, r2, r0, 16, 12);
- S7(r4, r3, r2, r0, r1); store_and_load_keys(r1, r2, r0, r4, 12, 8);
- S0(r1, r2, r0, r4, r3); store_and_load_keys(r0, r2, r4, r1, 8, 4);
- S1(r0, r2, r4, r1, r3); store_and_load_keys(r3, r4, r1, r0, 4, 0);
- S2(r3, r4, r1, r0, r2); store_and_load_keys(r2, r4, r3, r0, 0, -4);
- S3(r2, r4, r3, r0, r1); store_and_load_keys(r0, r1, r4, r2, -4, -8);
- S4(r0, r1, r4, r2, r3); store_and_load_keys(r1, r4, r2, r3, -8, -12);
- S5(r1, r4, r2, r3, r0); store_and_load_keys(r0, r1, r4, r3, -12, -16);
- S6(r0, r1, r4, r3, r2); store_and_load_keys(r4, r2, r1, r3, -16, -20);
- S7(r4, r2, r1, r3, r0); store_and_load_keys(r0, r1, r3, r4, -20, -24);
- S0(r0, r1, r3, r4, r2); store_and_load_keys(r3, r1, r4, r0, -24, -28);
- k -= 50;
- S1(r3, r1, r4, r0, r2); store_and_load_keys(r2, r4, r0, r3, 22, 18);
- S2(r2, r4, r0, r3, r1); store_and_load_keys(r1, r4, r2, r3, 18, 14);
- S3(r1, r4, r2, r3, r0); store_and_load_keys(r3, r0, r4, r1, 14, 10);
- S4(r3, r0, r4, r1, r2); store_and_load_keys(r0, r4, r1, r2, 10, 6);
- S5(r0, r4, r1, r2, r3); store_and_load_keys(r3, r0, r4, r2, 6, 2);
- S6(r3, r0, r4, r2, r1); store_and_load_keys(r4, r1, r0, r2, 2, -2);
- S7(r4, r1, r0, r2, r3); store_and_load_keys(r3, r0, r2, r4, -2, -6);
- S0(r3, r0, r2, r4, r1); store_and_load_keys(r2, r0, r4, r3, -6, -10);
- S1(r2, r0, r4, r3, r1); store_and_load_keys(r1, r4, r3, r2, -10, -14);
- S2(r1, r4, r3, r2, r0); store_and_load_keys(r0, r4, r1, r2, -14, -18);
- S3(r0, r4, r1, r2, r3); store_and_load_keys(r2, r3, r4, r0, -18, -22);
- k -= 50;
- S4(r2, r3, r4, r0, r1); store_and_load_keys(r3, r4, r0, r1, 28, 24);
- S5(r3, r4, r0, r1, r2); store_and_load_keys(r2, r3, r4, r1, 24, 20);
- S6(r2, r3, r4, r1, r0); store_and_load_keys(r4, r0, r3, r1, 20, 16);
- S7(r4, r0, r3, r1, r2); store_and_load_keys(r2, r3, r1, r4, 16, 12);
- S0(r2, r3, r1, r4, r0); store_and_load_keys(r1, r3, r4, r2, 12, 8);
- S1(r1, r3, r4, r2, r0); store_and_load_keys(r0, r4, r2, r1, 8, 4);
- S2(r0, r4, r2, r1, r3); store_and_load_keys(r3, r4, r0, r1, 4, 0);
- S3(r3, r4, r0, r1, r2); storekeys(r1, r2, r4, r3, 0);
+ __serpent_setkey_sbox(r0, r1, r2, r3, r4, ctx->expkey);
return 0;
}
diff --git a/crypto/shash.c b/crypto/shash.c
index 5e31c8d776df..325a14da5827 100644
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -41,7 +41,7 @@ static int shash_setkey_unaligned(struct crypto_shash *tfm, const u8 *key,
int err;
absize = keylen + (alignmask & ~(crypto_tfm_ctx_alignment() - 1));
- buffer = kmalloc(absize, GFP_KERNEL);
+ buffer = kmalloc(absize, GFP_ATOMIC);
if (!buffer)
return -ENOMEM;
@@ -275,12 +275,14 @@ static int shash_async_finup(struct ahash_request *req)
int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc)
{
- struct scatterlist *sg = req->src;
- unsigned int offset = sg->offset;
unsigned int nbytes = req->nbytes;
+ struct scatterlist *sg;
+ unsigned int offset;
int err;
- if (nbytes < min(sg->length, ((unsigned int)(PAGE_SIZE)) - offset)) {
+ if (nbytes &&
+ (sg = req->src, offset = sg->offset,
+ nbytes < min(sg->length, ((unsigned int)(PAGE_SIZE)) - offset))) {
void *data;
data = kmap_atomic(sg_page(sg));
diff --git a/crypto/skcipher.c b/crypto/skcipher.c
index 4faa0fd53b0c..d5692e35fab1 100644
--- a/crypto/skcipher.c
+++ b/crypto/skcipher.c
@@ -426,14 +426,9 @@ static int skcipher_copy_iv(struct skcipher_walk *walk)
static int skcipher_walk_first(struct skcipher_walk *walk)
{
- walk->nbytes = 0;
-
if (WARN_ON_ONCE(in_irq()))
return -EDEADLK;
- if (unlikely(!walk->total))
- return 0;
-
walk->buffer = NULL;
if (unlikely(((unsigned long)walk->iv & walk->alignmask))) {
int err = skcipher_copy_iv(walk);
@@ -452,10 +447,15 @@ static int skcipher_walk_skcipher(struct skcipher_walk *walk,
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ walk->total = req->cryptlen;
+ walk->nbytes = 0;
+
+ if (unlikely(!walk->total))
+ return 0;
+
scatterwalk_start(&walk->in, req->src);
scatterwalk_start(&walk->out, req->dst);
- walk->total = req->cryptlen;
walk->iv = req->iv;
walk->oiv = req->iv;
@@ -509,6 +509,11 @@ static int skcipher_walk_aead_common(struct skcipher_walk *walk,
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
int err;
+ walk->nbytes = 0;
+
+ if (unlikely(!walk->total))
+ return 0;
+
walk->flags &= ~SKCIPHER_WALK_PHYS;
scatterwalk_start(&walk->in, req->src);
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 9a11f3c2bf98..0022a18d36ee 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -138,8 +138,6 @@ static int test_aead_cycles(struct aead_request *req, int enc, int blen)
int ret = 0;
int i;
- local_irq_disable();
-
/* Warm-up run. */
for (i = 0; i < 4; i++) {
if (enc)
@@ -169,8 +167,6 @@ static int test_aead_cycles(struct aead_request *req, int enc, int blen)
}
out:
- local_irq_enable();
-
if (ret == 0)
printk("1 operation in %lu cycles (%d bytes)\n",
(cycles + 4) / 8, blen);
@@ -1408,9 +1404,9 @@ static int do_test(const char *alg, u32 type, u32 mask, int m)
test_cipher_speed("lrw(aes)", DECRYPT, sec, NULL, 0,
speed_template_32_40_48);
test_cipher_speed("xts(aes)", ENCRYPT, sec, NULL, 0,
- speed_template_32_48_64);
+ speed_template_32_64);
test_cipher_speed("xts(aes)", DECRYPT, sec, NULL, 0,
- speed_template_32_48_64);
+ speed_template_32_64);
test_cipher_speed("cts(cbc(aes))", ENCRYPT, sec, NULL, 0,
speed_template_16_24_32);
test_cipher_speed("cts(cbc(aes))", DECRYPT, sec, NULL, 0,
@@ -1841,9 +1837,9 @@ static int do_test(const char *alg, u32 type, u32 mask, int m)
test_acipher_speed("lrw(aes)", DECRYPT, sec, NULL, 0,
speed_template_32_40_48);
test_acipher_speed("xts(aes)", ENCRYPT, sec, NULL, 0,
- speed_template_32_48_64);
+ speed_template_32_64);
test_acipher_speed("xts(aes)", DECRYPT, sec, NULL, 0,
- speed_template_32_48_64);
+ speed_template_32_64);
test_acipher_speed("cts(cbc(aes))", ENCRYPT, sec, NULL, 0,
speed_template_16_24_32);
test_acipher_speed("cts(cbc(aes))", DECRYPT, sec, NULL, 0,
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 6f5f3ed8376c..7125ba3880af 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -218,14 +218,14 @@ static int ahash_partial_update(struct ahash_request **preq,
crypto_ahash_reqtfm(req));
state = kmalloc(statesize + sizeof(guard), GFP_KERNEL);
if (!state) {
- pr_err("alt: hash: Failed to alloc state for %s\n", algo);
+ pr_err("alg: hash: Failed to alloc state for %s\n", algo);
goto out_nostate;
}
memcpy(state + statesize, guard, sizeof(guard));
ret = crypto_ahash_export(req, state);
WARN_ON(memcmp(state + statesize, guard, sizeof(guard)));
if (ret) {
- pr_err("alt: hash: Failed to export() for %s\n", algo);
+ pr_err("alg: hash: Failed to export() for %s\n", algo);
goto out;
}
ahash_request_free(req);
@@ -344,19 +344,19 @@ static int __test_hash(struct crypto_ahash *tfm,
} else {
ret = wait_async_op(&tresult, crypto_ahash_init(req));
if (ret) {
- pr_err("alt: hash: init failed on test %d "
+ pr_err("alg: hash: init failed on test %d "
"for %s: ret=%d\n", j, algo, -ret);
goto out;
}
ret = wait_async_op(&tresult, crypto_ahash_update(req));
if (ret) {
- pr_err("alt: hash: update failed on test %d "
+ pr_err("alg: hash: update failed on test %d "
"for %s: ret=%d\n", j, algo, -ret);
goto out;
}
ret = wait_async_op(&tresult, crypto_ahash_final(req));
if (ret) {
- pr_err("alt: hash: final failed on test %d "
+ pr_err("alg: hash: final failed on test %d "
"for %s: ret=%d\n", j, algo, -ret);
goto out;
}
@@ -488,13 +488,13 @@ static int __test_hash(struct crypto_ahash *tfm,
ahash_request_set_crypt(req, sg, result, template[i].tap[0]);
ret = wait_async_op(&tresult, crypto_ahash_init(req));
if (ret) {
- pr_err("alt: hash: init failed on test %d for %s: ret=%d\n",
+ pr_err("alg: hash: init failed on test %d for %s: ret=%d\n",
j, algo, -ret);
goto out;
}
ret = wait_async_op(&tresult, crypto_ahash_update(req));
if (ret) {
- pr_err("alt: hash: update failed on test %d for %s: ret=%d\n",
+ pr_err("alg: hash: update failed on test %d for %s: ret=%d\n",
j, algo, -ret);
goto out;
}
@@ -505,7 +505,7 @@ static int __test_hash(struct crypto_ahash *tfm,
hash_buff, k, temp, &sg[0], algo, result,
&tresult);
if (ret) {
- pr_err("hash: partial update failed on test %d for %s: ret=%d\n",
+ pr_err("alg: hash: partial update failed on test %d for %s: ret=%d\n",
j, algo, -ret);
goto out_noreq;
}
@@ -513,7 +513,7 @@ static int __test_hash(struct crypto_ahash *tfm,
}
ret = wait_async_op(&tresult, crypto_ahash_final(req));
if (ret) {
- pr_err("alt: hash: final failed on test %d for %s: ret=%d\n",
+ pr_err("alg: hash: final failed on test %d for %s: ret=%d\n",
j, algo, -ret);
goto out;
}
@@ -1997,6 +1997,9 @@ static int do_test_kpp(struct crypto_kpp *tfm, const struct kpp_testvec *vec,
struct kpp_request *req;
void *input_buf = NULL;
void *output_buf = NULL;
+ void *a_public = NULL;
+ void *a_ss = NULL;
+ void *shared_secret = NULL;
struct tcrypt_result result;
unsigned int out_len_max;
int err = -ENOMEM;
@@ -2026,20 +2029,31 @@ static int do_test_kpp(struct crypto_kpp *tfm, const struct kpp_testvec *vec,
kpp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
tcrypt_complete, &result);
- /* Compute public key */
+ /* Compute party A's public key */
err = wait_async_op(&result, crypto_kpp_generate_public_key(req));
if (err) {
- pr_err("alg: %s: generate public key test failed. err %d\n",
+ pr_err("alg: %s: Party A: generate public key test failed. err %d\n",
alg, err);
goto free_output;
}
- /* Verify calculated public key */
- if (memcmp(vec->expected_a_public, sg_virt(req->dst),
- vec->expected_a_public_size)) {
- pr_err("alg: %s: generate public key test failed. Invalid output\n",
- alg);
- err = -EINVAL;
- goto free_output;
+
+ if (vec->genkey) {
+ /* Save party A's public key */
+ a_public = kzalloc(out_len_max, GFP_KERNEL);
+ if (!a_public) {
+ err = -ENOMEM;
+ goto free_output;
+ }
+ memcpy(a_public, sg_virt(req->dst), out_len_max);
+ } else {
+ /* Verify calculated public key */
+ if (memcmp(vec->expected_a_public, sg_virt(req->dst),
+ vec->expected_a_public_size)) {
+ pr_err("alg: %s: Party A: generate public key test failed. Invalid output\n",
+ alg);
+ err = -EINVAL;
+ goto free_output;
+ }
}
/* Calculate shared secret key by using counter part (b) public key. */
@@ -2058,15 +2072,53 @@ static int do_test_kpp(struct crypto_kpp *tfm, const struct kpp_testvec *vec,
tcrypt_complete, &result);
err = wait_async_op(&result, crypto_kpp_compute_shared_secret(req));
if (err) {
- pr_err("alg: %s: compute shard secret test failed. err %d\n",
+ pr_err("alg: %s: Party A: compute shared secret test failed. err %d\n",
alg, err);
goto free_all;
}
+
+ if (vec->genkey) {
+ /* Save the shared secret obtained by party A */
+ a_ss = kzalloc(vec->expected_ss_size, GFP_KERNEL);
+ if (!a_ss) {
+ err = -ENOMEM;
+ goto free_all;
+ }
+ memcpy(a_ss, sg_virt(req->dst), vec->expected_ss_size);
+
+ /*
+ * Calculate party B's shared secret by using party A's
+ * public key.
+ */
+ err = crypto_kpp_set_secret(tfm, vec->b_secret,
+ vec->b_secret_size);
+ if (err < 0)
+ goto free_all;
+
+ sg_init_one(&src, a_public, vec->expected_a_public_size);
+ sg_init_one(&dst, output_buf, out_len_max);
+ kpp_request_set_input(req, &src, vec->expected_a_public_size);
+ kpp_request_set_output(req, &dst, out_len_max);
+ kpp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
+ tcrypt_complete, &result);
+ err = wait_async_op(&result,
+ crypto_kpp_compute_shared_secret(req));
+ if (err) {
+ pr_err("alg: %s: Party B: compute shared secret failed. err %d\n",
+ alg, err);
+ goto free_all;
+ }
+
+ shared_secret = a_ss;
+ } else {
+ shared_secret = (void *)vec->expected_ss;
+ }
+
/*
* verify shared secret from which the user will derive
* secret key by executing whatever hash it has chosen
*/
- if (memcmp(vec->expected_ss, sg_virt(req->dst),
+ if (memcmp(shared_secret, sg_virt(req->dst),
vec->expected_ss_size)) {
pr_err("alg: %s: compute shared secret test failed. Invalid output\n",
alg);
@@ -2074,8 +2126,10 @@ static int do_test_kpp(struct crypto_kpp *tfm, const struct kpp_testvec *vec,
}
free_all:
+ kfree(a_ss);
kfree(input_buf);
free_output:
+ kfree(a_public);
kfree(output_buf);
free_req:
kpp_request_free(req);
@@ -2168,8 +2222,11 @@ static int test_akcipher_one(struct crypto_akcipher *tfm,
akcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
tcrypt_complete, &result);
- /* Run RSA encrypt - c = m^e mod n;*/
- err = wait_async_op(&result, crypto_akcipher_encrypt(req));
+ err = wait_async_op(&result, vecs->siggen_sigver_test ?
+ /* Run asymmetric signature generation */
+ crypto_akcipher_sign(req) :
+ /* Run asymmetric encrypt */
+ crypto_akcipher_encrypt(req));
if (err) {
pr_err("alg: akcipher: encrypt test failed. err %d\n", err);
goto free_all;
@@ -2207,8 +2264,11 @@ static int test_akcipher_one(struct crypto_akcipher *tfm,
init_completion(&result.completion);
akcipher_request_set_crypt(req, &src, &dst, vecs->c_size, out_len_max);
- /* Run RSA decrypt - m = c^d mod n;*/
- err = wait_async_op(&result, crypto_akcipher_decrypt(req));
+ err = wait_async_op(&result, vecs->siggen_sigver_test ?
+ /* Run asymmetric signature verification */
+ crypto_akcipher_verify(req) :
+ /* Run asymmetric decrypt */
+ crypto_akcipher_decrypt(req));
if (err) {
pr_err("alg: akcipher: decrypt test failed. err %d\n", err);
goto free_all;
@@ -2306,6 +2366,7 @@ static const struct alg_test_desc alg_test_descs[] = {
}, {
.alg = "authenc(hmac(sha1),cbc(aes))",
.test = alg_test_aead,
+ .fips_allowed = 1,
.suite = {
.aead = {
.enc = __VECS(hmac_sha1_aes_cbc_enc_tv_temp)
@@ -3255,6 +3316,25 @@ static const struct alg_test_desc alg_test_descs[] = {
}
}
}, {
+ .alg = "pkcs1pad(rsa,sha224)",
+ .test = alg_test_null,
+ .fips_allowed = 1,
+ }, {
+ .alg = "pkcs1pad(rsa,sha256)",
+ .test = alg_test_akcipher,
+ .fips_allowed = 1,
+ .suite = {
+ .akcipher = __VECS(pkcs1pad_rsa_tv_template)
+ }
+ }, {
+ .alg = "pkcs1pad(rsa,sha384)",
+ .test = alg_test_null,
+ .fips_allowed = 1,
+ }, {
+ .alg = "pkcs1pad(rsa,sha512)",
+ .test = alg_test_null,
+ .fips_allowed = 1,
+ }, {
.alg = "poly1305",
.test = alg_test_hash,
.suite = {
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index 429357339dcc..d54971d2d1c8 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -133,17 +133,21 @@ struct akcipher_testvec {
unsigned int m_size;
unsigned int c_size;
bool public_key_vec;
+ bool siggen_sigver_test;
};
struct kpp_testvec {
const unsigned char *secret;
+ const unsigned char *b_secret;
const unsigned char *b_public;
const unsigned char *expected_a_public;
const unsigned char *expected_ss;
unsigned short secret_size;
+ unsigned short b_secret_size;
unsigned short b_public_size;
unsigned short expected_a_public_size;
unsigned short expected_ss_size;
+ bool genkey;
};
static const char zeroed_string[48];
@@ -538,6 +542,101 @@ static const struct akcipher_testvec rsa_tv_template[] = {
}
};
+/*
+ * PKCS#1 RSA test vectors. Obtained from CAVS testing.
+ */
+static const struct akcipher_testvec pkcs1pad_rsa_tv_template[] = {
+ {
+ .key =
+ "\x30\x82\x03\x1f\x02\x01\x10\x02\x82\x01\x01\x00\xd7\x1e\x77\x82"
+ "\x8c\x92\x31\xe7\x69\x02\xa2\xd5\x5c\x78\xde\xa2\x0c\x8f\xfe\x28"
+ "\x59\x31\xdf\x40\x9c\x60\x61\x06\xb9\x2f\x62\x40\x80\x76\xcb\x67"
+ "\x4a\xb5\x59\x56\x69\x17\x07\xfa\xf9\x4c\xbd\x6c\x37\x7a\x46\x7d"
+ "\x70\xa7\x67\x22\xb3\x4d\x7a\x94\xc3\xba\x4b\x7c\x4b\xa9\x32\x7c"
+ "\xb7\x38\x95\x45\x64\xa4\x05\xa8\x9f\x12\x7c\x4e\xc6\xc8\x2d\x40"
+ "\x06\x30\xf4\x60\xa6\x91\xbb\x9b\xca\x04\x79\x11\x13\x75\xf0\xae"
+ "\xd3\x51\x89\xc5\x74\xb9\xaa\x3f\xb6\x83\xe4\x78\x6b\xcd\xf9\x5c"
+ "\x4c\x85\xea\x52\x3b\x51\x93\xfc\x14\x6b\x33\x5d\x30\x70\xfa\x50"
+ "\x1b\x1b\x38\x81\x13\x8d\xf7\xa5\x0c\xc0\x8e\xf9\x63\x52\x18\x4e"
+ "\xa9\xf9\xf8\x5c\x5d\xcd\x7a\x0d\xd4\x8e\x7b\xee\x91\x7b\xad\x7d"
+ "\xb4\x92\xd5\xab\x16\x3b\x0a\x8a\xce\x8e\xde\x47\x1a\x17\x01\x86"
+ "\x7b\xab\x99\xf1\x4b\x0c\x3a\x0d\x82\x47\xc1\x91\x8c\xbb\x2e\x22"
+ "\x9e\x49\x63\x6e\x02\xc1\xc9\x3a\x9b\xa5\x22\x1b\x07\x95\xd6\x10"
+ "\x02\x50\xfd\xfd\xd1\x9b\xbe\xab\xc2\xc0\x74\xd7\xec\x00\xfb\x11"
+ "\x71\xcb\x7a\xdc\x81\x79\x9f\x86\x68\x46\x63\x82\x4d\xb7\xf1\xe6"
+ "\x16\x6f\x42\x63\xf4\x94\xa0\xca\x33\xcc\x75\x13\x02\x82\x01\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x01"
+ "\x02\x82\x01\x00\x62\xb5\x60\x31\x4f\x3f\x66\x16\xc1\x60\xac\x47"
+ "\x2a\xff\x6b\x69\x00\x4a\xb2\x5c\xe1\x50\xb9\x18\x74\xa8\xe4\xdc"
+ "\xa8\xec\xcd\x30\xbb\xc1\xc6\xe3\xc6\xac\x20\x2a\x3e\x5e\x8b\x12"
+ "\xe6\x82\x08\x09\x38\x0b\xab\x7c\xb3\xcc\x9c\xce\x97\x67\xdd\xef"
+ "\x95\x40\x4e\x92\xe2\x44\xe9\x1d\xc1\x14\xfd\xa9\xb1\xdc\x71\x9c"
+ "\x46\x21\xbd\x58\x88\x6e\x22\x15\x56\xc1\xef\xe0\xc9\x8d\xe5\x80"
+ "\x3e\xda\x7e\x93\x0f\x52\xf6\xf5\xc1\x91\x90\x9e\x42\x49\x4f\x8d"
+ "\x9c\xba\x38\x83\xe9\x33\xc2\x50\x4f\xec\xc2\xf0\xa8\xb7\x6e\x28"
+ "\x25\x56\x6b\x62\x67\xfe\x08\xf1\x56\xe5\x6f\x0e\x99\xf1\xe5\x95"
+ "\x7b\xef\xeb\x0a\x2c\x92\x97\x57\x23\x33\x36\x07\xdd\xfb\xae\xf1"
+ "\xb1\xd8\x33\xb7\x96\x71\x42\x36\xc5\xa4\xa9\x19\x4b\x1b\x52\x4c"
+ "\x50\x69\x91\xf0\x0e\xfa\x80\x37\x4b\xb5\xd0\x2f\xb7\x44\x0d\xd4"
+ "\xf8\x39\x8d\xab\x71\x67\x59\x05\x88\x3d\xeb\x48\x48\x33\x88\x4e"
+ "\xfe\xf8\x27\x1b\xd6\x55\x60\x5e\x48\xb7\x6d\x9a\xa8\x37\xf9\x7a"
+ "\xde\x1b\xcd\x5d\x1a\x30\xd4\xe9\x9e\x5b\x3c\x15\xf8\x9c\x1f\xda"
+ "\xd1\x86\x48\x55\xce\x83\xee\x8e\x51\xc7\xde\x32\x12\x47\x7d\x46"
+ "\xb8\x35\xdf\x41\x02\x01\x30\x02\x01\x30\x02\x01\x30\x02\x01\x30"
+ "\x02\x01\x30",
+ .key_len = 804,
+ /*
+ * m is SHA256 hash of following message:
+ * "\x49\x41\xbe\x0a\x0c\xc9\xf6\x35\x51\xe4\x27\x56\x13\x71\x4b\xd0"
+ * "\x36\x92\x84\x89\x1b\xf8\x56\x4a\x72\x61\x14\x69\x4f\x5e\x98\xa5"
+ * "\x80\x5a\x37\x51\x1f\xd8\xf5\xb5\x63\xfc\xf4\xb1\xbb\x4d\x33\xa3"
+ * "\x1e\xb9\x75\x8b\x9c\xda\x7e\x6d\x3a\x77\x85\xf7\xfc\x4e\xe7\x64"
+ * "\x43\x10\x19\xa0\x59\xae\xe0\xad\x4b\xd3\xc4\x45\xf7\xb1\xc2\xc1"
+ * "\x65\x01\x41\x39\x5b\x45\x47\xed\x2b\x51\xed\xe3\xd0\x09\x10\xd2"
+ * "\x39\x6c\x4a\x3f\xe5\xd2\x20\xe6\xb0\x71\x7d\x5b\xed\x26\x60\xf1"
+ * "\xb4\x73\xd1\xdb\x7d\xc4\x19\x91\xee\xf6\x32\x76\xf2\x19\x7d\xb7"
+ */
+ .m =
+ "\x3e\xc8\xa1\x26\x20\x54\x44\x52\x48\x0d\xe5\x66\xf3\xb3\xf5\x04"
+ "\xbe\x10\xa8\x48\x94\x22\x2d\xdd\xba\x7a\xb4\x76\x8d\x79\x98\x89",
+ .m_size = 32,
+ .c =
+ "\xc7\xa3\x98\xeb\x43\xd1\x08\xc2\x3d\x78\x45\x04\x70\xc9\x01\xee"
+ "\xf8\x85\x37\x7c\x0b\xf9\x19\x70\x5c\x45\x7b\x2f\x3a\x0b\xb7\x8b"
+ "\xc4\x0d\x7b\x3a\x64\x0b\x0f\xdb\x78\xa9\x0b\xfd\x8d\x82\xa4\x86"
+ "\x39\xbf\x21\xb8\x84\xc4\xce\x9f\xc2\xe8\xb6\x61\x46\x17\xb9\x4e"
+ "\x0b\x57\x05\xb4\x4f\xf9\x9c\x93\x2d\x9b\xd5\x48\x1d\x80\x12\xef"
+ "\x3a\x77\x7f\xbc\xb5\x8e\x2b\x6b\x7c\xfc\x9f\x8c\x9d\xa2\xc4\x85"
+ "\xb0\x87\xe9\x17\x9b\xb6\x23\x62\xd2\xa9\x9f\x57\xe8\xf7\x04\x45"
+ "\x24\x3a\x45\xeb\xeb\x6a\x08\x8e\xaf\xc8\xa0\x84\xbc\x5d\x13\x38"
+ "\xf5\x17\x8c\xa3\x96\x9b\xa9\x38\x8d\xf0\x35\xad\x32\x8a\x72\x5b"
+ "\xdf\x21\xab\x4b\x0e\xa8\x29\xbb\x61\x54\xbf\x05\xdb\x84\x84\xde"
+ "\xdd\x16\x36\x31\xda\xf3\x42\x6d\x7a\x90\x22\x9b\x11\x29\xa6\xf8"
+ "\x30\x61\xda\xd3\x8b\x54\x1e\x42\xd1\x47\x1d\x6f\xd1\xcd\x42\x0b"
+ "\xd1\xe4\x15\x85\x7e\x08\xd6\x59\x64\x4c\x01\x34\x91\x92\x26\xe8"
+ "\xb0\x25\x8c\xf8\xf4\xfa\x8b\xc9\x31\x33\x76\x72\xfb\x64\x92\x9f"
+ "\xda\x62\x8d\xe1\x2a\x71\x91\x43\x40\x61\x3c\x5a\xbe\x86\xfc\x5b"
+ "\xe6\xf9\xa9\x16\x31\x1f\xaf\x25\x6d\xc2\x4a\x23\x6e\x63\x02\xa2",
+ .c_size = 256,
+ .siggen_sigver_test = true,
+ }
+};
+
static const struct kpp_testvec dh_tv_template[] = {
{
.secret =
@@ -840,6 +939,50 @@ static const struct kpp_testvec ecdh_tv_template[] = {
.b_public_size = 64,
.expected_a_public_size = 64,
.expected_ss_size = 32
+ }, {
+ .secret =
+#ifdef __LITTLE_ENDIAN
+ "\x02\x00" /* type */
+ "\x08\x00" /* len */
+ "\x02\x00" /* curve_id */
+ "\x00\x00", /* key_size */
+#else
+ "\x00\x02" /* type */
+ "\x00\x08" /* len */
+ "\x00\x02" /* curve_id */
+ "\x00\x00", /* key_size */
+#endif
+ .b_secret =
+#ifdef __LITTLE_ENDIAN
+ "\x02\x00" /* type */
+ "\x28\x00" /* len */
+ "\x02\x00" /* curve_id */
+ "\x20\x00" /* key_size */
+#else
+ "\x00\x02" /* type */
+ "\x00\x28" /* len */
+ "\x00\x02" /* curve_id */
+ "\x00\x20" /* key_size */
+#endif
+ "\x24\xd1\x21\xeb\xe5\xcf\x2d\x83"
+ "\xf6\x62\x1b\x6e\x43\x84\x3a\xa3"
+ "\x8b\xe0\x86\xc3\x20\x19\xda\x92"
+ "\x50\x53\x03\xe1\xc0\xea\xb8\x82",
+ .b_public =
+ "\x1a\x7f\xeb\x52\x00\xbd\x3c\x31"
+ "\x7d\xb6\x70\xc1\x86\xa6\xc7\xc4"
+ "\x3b\xc5\x5f\x6c\x6f\x58\x3c\xf5"
+ "\xb6\x63\x82\x77\x33\x24\xa1\x5f"
+ "\x6a\xca\x43\x6f\xf7\x7e\xff\x02"
+ "\x37\x08\xcc\x40\x5e\x7a\xfd\x6a"
+ "\x6a\x02\x6e\x41\x87\x68\x38\x77"
+ "\xfa\xa9\x44\x43\x2d\xef\x09\xdf",
+ .secret_size = 8,
+ .b_secret_size = 40,
+ .b_public_size = 64,
+ .expected_a_public_size = 64,
+ .expected_ss_size = 32,
+ .genkey = true,
}
};
@@ -32532,6 +32675,10 @@ static const struct cipher_testvec chacha20_enc_tv_template[] = {
"\x5b\x86\x2f\x37\x30\xe3\x7c\xfd"
"\xc4\xfd\x80\x6c\x22\xf2\x21",
.rlen = 375,
+ .also_non_np = 1,
+ .np = 3,
+ .tap = { 375 - 20, 4, 16 },
+
}, { /* RFC7539 A.2. Test Vector #3 */
.key = "\x1c\x92\x40\xa5\xeb\x55\xd3\x8a"
"\xf3\x33\x88\x86\x04\xf6\xb5\xf0"
@@ -32906,6 +33053,9 @@ static const struct cipher_testvec chacha20_enc_tv_template[] = {
"\xa1\xed\xad\xd5\x76\xfa\x24\x8f"
"\x98",
.rlen = 1281,
+ .also_non_np = 1,
+ .np = 3,
+ .tap = { 1200, 1, 80 },
},
};
diff --git a/crypto/xts.c b/crypto/xts.c
index d86c11a8c882..e31828ed0046 100644
--- a/crypto/xts.c
+++ b/crypto/xts.c
@@ -554,8 +554,10 @@ static int create(struct crypto_template *tmpl, struct rtattr **tb)
ctx->name[len - 1] = 0;
if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
- "xts(%s)", ctx->name) >= CRYPTO_MAX_ALG_NAME)
- return -ENAMETOOLONG;
+ "xts(%s)", ctx->name) >= CRYPTO_MAX_ALG_NAME) {
+ err = -ENAMETOOLONG;
+ goto err_drop_spawn;
+ }
} else
goto err_drop_spawn;
diff --git a/drivers/Kconfig b/drivers/Kconfig
index ba2901e76769..505c676fa9c7 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -206,4 +206,6 @@ source "drivers/fsi/Kconfig"
source "drivers/tee/Kconfig"
+source "drivers/mux/Kconfig"
+
endmenu
diff --git a/drivers/Makefile b/drivers/Makefile
index cfabd141dba2..d90fdc413648 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -125,7 +125,6 @@ obj-$(CONFIG_ACCESSIBILITY) += accessibility/
obj-$(CONFIG_ISDN) += isdn/
obj-$(CONFIG_EDAC) += edac/
obj-$(CONFIG_EISA) += eisa/
-obj-y += lguest/
obj-$(CONFIG_CPU_FREQ) += cpufreq/
obj-$(CONFIG_CPU_IDLE) += cpuidle/
obj-y += mmc/
@@ -181,3 +180,4 @@ obj-$(CONFIG_NVMEM) += nvmem/
obj-$(CONFIG_FPGA) += fpga/
obj-$(CONFIG_FSI) += fsi/
obj-$(CONFIG_TEE) += tee/
+obj-$(CONFIG_MULTIPLEXER) += mux/
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index b1aacfc62b1f..90265ab4437a 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -50,6 +50,7 @@ acpi-$(CONFIG_ACPI_REDUCED_HARDWARE_ONLY) += evged.o
acpi-y += sysfs.o
acpi-y += property.o
acpi-$(CONFIG_X86) += acpi_cmos_rtc.o
+acpi-$(CONFIG_X86) += x86/apple.o
acpi-$(CONFIG_X86) += x86/utils.o
acpi-$(CONFIG_DEBUG_FS) += debugfs.o
acpi-$(CONFIG_ACPI_NUMA) += numa.o
diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c
index fc6c416f8724..d5999eb41c00 100644
--- a/drivers/acpi/acpi_apd.c
+++ b/drivers/acpi/acpi_apd.c
@@ -180,8 +180,8 @@ static const struct acpi_device_id acpi_apd_device_ids[] = {
{ "APMC0D0F", APD_ADDR(xgene_i2c_desc) },
{ "BRCM900D", APD_ADDR(vulcan_spi_desc) },
{ "CAV900D", APD_ADDR(vulcan_spi_desc) },
- { "HISI0A21", APD_ADDR(hip07_i2c_desc) },
- { "HISI0A22", APD_ADDR(hip08_i2c_desc) },
+ { "HISI02A1", APD_ADDR(hip07_i2c_desc) },
+ { "HISI02A2", APD_ADDR(hip08_i2c_desc) },
#endif
{ }
};
diff --git a/drivers/acpi/acpi_configfs.c b/drivers/acpi/acpi_configfs.c
index 146a77fb762d..853bc7fc673f 100644
--- a/drivers/acpi/acpi_configfs.c
+++ b/drivers/acpi/acpi_configfs.c
@@ -15,11 +15,15 @@
#include <linux/configfs.h>
#include <linux/acpi.h>
+#include "acpica/accommon.h"
+#include "acpica/actables.h"
+
static struct config_group *acpi_table_group;
struct acpi_table {
struct config_item cfg;
struct acpi_table_header *header;
+ u32 index;
};
static ssize_t acpi_table_aml_write(struct config_item *cfg,
@@ -52,7 +56,11 @@ static ssize_t acpi_table_aml_write(struct config_item *cfg,
if (!table->header)
return -ENOMEM;
- ret = acpi_load_table(table->header);
+ ACPI_INFO(("Host-directed Dynamic ACPI Table Load:"));
+ ret = acpi_tb_install_and_load_table(
+ ACPI_PTR_TO_PHYSADDR(table->header),
+ ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL, FALSE,
+ &table->index);
if (ret) {
kfree(table->header);
table->header = NULL;
@@ -215,8 +223,18 @@ static struct config_item *acpi_table_make_item(struct config_group *group,
return &table->cfg;
}
+static void acpi_table_drop_item(struct config_group *group,
+ struct config_item *cfg)
+{
+ struct acpi_table *table = container_of(cfg, struct acpi_table, cfg);
+
+ ACPI_INFO(("Host-directed Dynamic ACPI Table Unload"));
+ acpi_tb_unload_table(table->index);
+}
+
struct configfs_group_operations acpi_table_group_ops = {
.make_item = acpi_table_make_item,
+ .drop_item = acpi_table_drop_item,
};
static struct config_item_type acpi_tables_type = {
diff --git a/drivers/acpi/acpi_dbg.c b/drivers/acpi/acpi_dbg.c
index dee86925a9a1..3ec05aa1a903 100644
--- a/drivers/acpi/acpi_dbg.c
+++ b/drivers/acpi/acpi_dbg.c
@@ -10,7 +10,7 @@
*/
/* #define DEBUG */
-#define pr_fmt(fmt) "ACPI : AML: " fmt
+#define pr_fmt(fmt) "ACPI: AML: " fmt
#include <linux/kernel.h>
#include <linux/module.h>
diff --git a/drivers/acpi/acpi_extlog.c b/drivers/acpi/acpi_extlog.c
index 502ea4dc2080..560fdae8cc59 100644
--- a/drivers/acpi/acpi_extlog.c
+++ b/drivers/acpi/acpi_extlog.c
@@ -141,9 +141,9 @@ static int extlog_print(struct notifier_block *nb, unsigned long val,
int cpu = mce->extcpu;
struct acpi_hest_generic_status *estatus, *tmp;
struct acpi_hest_generic_data *gdata;
- const uuid_le *fru_id = &NULL_UUID_LE;
+ const guid_t *fru_id = &guid_null;
char *fru_text = "";
- uuid_le *sec_type;
+ guid_t *sec_type;
static u32 err_seq;
estatus = extlog_elog_entry_check(cpu, bank);
@@ -165,11 +165,11 @@ static int extlog_print(struct notifier_block *nb, unsigned long val,
err_seq++;
gdata = (struct acpi_hest_generic_data *)(tmp + 1);
if (gdata->validation_bits & CPER_SEC_VALID_FRU_ID)
- fru_id = (uuid_le *)gdata->fru_id;
+ fru_id = (guid_t *)gdata->fru_id;
if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT)
fru_text = gdata->fru_text;
- sec_type = (uuid_le *)gdata->section_type;
- if (!uuid_le_cmp(*sec_type, CPER_SEC_PLATFORM_MEM)) {
+ sec_type = (guid_t *)gdata->section_type;
+ if (guid_equal(sec_type, &CPER_SEC_PLATFORM_MEM)) {
struct cper_sec_mem_err *mem = (void *)(gdata + 1);
if (gdata->error_data_length >= sizeof(*mem))
trace_extlog_mem_event(mem, err_seq, fru_id, fru_text,
@@ -182,17 +182,17 @@ out:
static bool __init extlog_get_l1addr(void)
{
- u8 uuid[16];
+ guid_t guid;
acpi_handle handle;
union acpi_object *obj;
- acpi_str_to_uuid(extlog_dsm_uuid, uuid);
-
+ if (guid_parse(extlog_dsm_uuid, &guid))
+ return false;
if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle)))
return false;
- if (!acpi_check_dsm(handle, uuid, EXTLOG_DSM_REV, 1 << EXTLOG_FN_ADDR))
+ if (!acpi_check_dsm(handle, &guid, EXTLOG_DSM_REV, 1 << EXTLOG_FN_ADDR))
return false;
- obj = acpi_evaluate_dsm_typed(handle, uuid, EXTLOG_DSM_REV,
+ obj = acpi_evaluate_dsm_typed(handle, &guid, EXTLOG_DSM_REV,
EXTLOG_FN_ADDR, NULL, ACPI_TYPE_INTEGER);
if (!obj) {
return false;
diff --git a/drivers/acpi/acpi_lpat.c b/drivers/acpi/acpi_lpat.c
index c1c4877ca96c..2cd9f738812b 100644
--- a/drivers/acpi/acpi_lpat.c
+++ b/drivers/acpi/acpi_lpat.c
@@ -25,7 +25,7 @@
* @raw: the raw value, used as a key to get the temerature from the
* above mapping table
*
- * A positive converted temperarure value will be returned on success,
+ * A positive converted temperature value will be returned on success,
* a negative errno will be returned in error cases.
*/
int acpi_lpat_raw_to_temp(struct acpi_lpat_conversion_table *lpat_table,
@@ -55,11 +55,11 @@ EXPORT_SYMBOL_GPL(acpi_lpat_raw_to_temp);
* acpi_lpat_temp_to_raw(): Return raw value from temperature through
* LPAT conversion table
*
- * @lpat: the temperature_raw mapping table
+ * @lpat_table: the temperature_raw mapping table
* @temp: the temperature, used as a key to get the raw value from the
* above mapping table
*
- * A positive converted temperature value will be returned on success,
+ * The raw value will be returned on success,
* a negative errno will be returned in error cases.
*/
int acpi_lpat_temp_to_raw(struct acpi_lpat_conversion_table *lpat_table,
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 10347e3d73ad..032ae44710e5 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -85,6 +85,7 @@ static const struct lpss_device_desc lpss_dma_desc = {
};
struct lpss_private_data {
+ struct acpi_device *adev;
void __iomem *mmio_base;
resource_size_t mmio_size;
unsigned int fixed_clk_rate;
@@ -155,6 +156,12 @@ static struct pwm_lookup byt_pwm_lookup[] = {
static void byt_pwm_setup(struct lpss_private_data *pdata)
{
+ struct acpi_device *adev = pdata->adev;
+
+ /* Only call pwm_add_table for the first PWM controller */
+ if (!adev->pnp.unique_id || strcmp(adev->pnp.unique_id, "1"))
+ return;
+
if (!acpi_dev_present("INT33FD", NULL, -1))
pwm_add_table(byt_pwm_lookup, ARRAY_SIZE(byt_pwm_lookup));
}
@@ -180,6 +187,12 @@ static struct pwm_lookup bsw_pwm_lookup[] = {
static void bsw_pwm_setup(struct lpss_private_data *pdata)
{
+ struct acpi_device *adev = pdata->adev;
+
+ /* Only call pwm_add_table for the first PWM controller */
+ if (!adev->pnp.unique_id || strcmp(adev->pnp.unique_id, "1"))
+ return;
+
pwm_add_table(bsw_pwm_lookup, ARRAY_SIZE(bsw_pwm_lookup));
}
@@ -452,10 +465,12 @@ static int acpi_lpss_create_device(struct acpi_device *adev,
acpi_dev_free_resource_list(&resource_list);
if (!pdata->mmio_base) {
- ret = -ENOMEM;
+ /* Skip the device, but continue the namespace scan. */
+ ret = 0;
goto err_out;
}
+ pdata->adev = adev;
pdata->dev_desc = dev_desc;
if (dev_desc->setup)
@@ -576,7 +591,7 @@ static struct attribute *lpss_attrs[] = {
NULL,
};
-static struct attribute_group lpss_attr_group = {
+static const struct attribute_group lpss_attr_group = {
.attrs = lpss_attrs,
.name = "lpss_ltr",
};
diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index f098e25b6b41..86c10599d9f8 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -670,7 +670,7 @@ err:
}
-void __init acpi_processor_check_duplicates(void)
+static void __init acpi_processor_check_duplicates(void)
{
/* check the correctness for all processors in ACPI namespace */
acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
index e88fe3632dd6..0972ec0e2eb8 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -418,7 +418,7 @@ static int video_set_report_key_events(const struct dmi_system_id *id)
return 0;
}
-static struct dmi_system_id video_dmi_table[] = {
+static const struct dmi_system_id video_dmi_table[] = {
/*
* Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121
*/
diff --git a/drivers/acpi/acpi_watchdog.c b/drivers/acpi/acpi_watchdog.c
index 8c4e0a18460a..11b113f8e367 100644
--- a/drivers/acpi/acpi_watchdog.c
+++ b/drivers/acpi/acpi_watchdog.c
@@ -66,7 +66,7 @@ void __init acpi_watchdog_init(void)
for (i = 0; i < wdat->entries; i++) {
const struct acpi_generic_address *gas;
struct resource_entry *rentry;
- struct resource res;
+ struct resource res = {};
bool found;
gas = &entries[i].register_region;
@@ -86,7 +86,12 @@ void __init acpi_watchdog_init(void)
found = false;
resource_list_for_each_entry(rentry, &resource_list) {
- if (resource_contains(rentry->res, &res)) {
+ if (rentry->res->flags == res.flags &&
+ resource_overlaps(rentry->res, &res)) {
+ if (res.start < rentry->res->start)
+ rentry->res->start = res.start;
+ if (res.end > rentry->res->end)
+ rentry->res->end = res.end;
found = true;
break;
}
diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile
index dea65306b687..1709551bc4aa 100644
--- a/drivers/acpi/acpica/Makefile
+++ b/drivers/acpi/acpica/Makefile
@@ -18,6 +18,7 @@ acpi-y := \
dsmthdat.o \
dsobject.o \
dsopcode.o \
+ dspkginit.o \
dsutils.o \
dswexec.o \
dswload.o \
@@ -172,6 +173,7 @@ acpi-y += \
utosi.o \
utownerid.o \
utpredef.o \
+ utresdecode.o \
utresrc.o \
utstate.o \
utstring.o \
diff --git a/drivers/acpi/acpica/acapps.h b/drivers/acpi/acpica/acapps.h
index b65f2731e9e2..7a1a68b5ac5c 100644
--- a/drivers/acpi/acpica/acapps.h
+++ b/drivers/acpi/acpica/acapps.h
@@ -114,6 +114,8 @@ ac_get_all_tables_from_file(char *filename,
u8 get_only_aml_tables,
struct acpi_new_table_desc **return_list_head);
+void ac_delete_table_list(struct acpi_new_table_desc *list_head);
+
u8 ac_is_file_binary(FILE * file);
acpi_status ac_validate_table_header(FILE * file, long table_offset);
@@ -158,8 +160,8 @@ acpi_dm_finish_namespace_load(union acpi_parse_object *parse_tree_root,
acpi_owner_id owner_id);
void
-acpi_dm_convert_resource_indexes(union acpi_parse_object *parse_tree_root,
- struct acpi_namespace_node *namespace_root);
+acpi_dm_convert_parse_objects(union acpi_parse_object *parse_tree_root,
+ struct acpi_namespace_node *namespace_root);
/*
* adfile
diff --git a/drivers/acpi/acpica/acdispat.h b/drivers/acpi/acpica/acdispat.h
index 0d95c85cce06..f8f3a6e74128 100644
--- a/drivers/acpi/acpica/acdispat.h
+++ b/drivers/acpi/acpica/acdispat.h
@@ -237,6 +237,11 @@ acpi_ds_initialize_objects(u32 table_index,
* dsobject - Parser/Interpreter interface - object initialization and conversion
*/
acpi_status
+acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op,
+ union acpi_operand_object **obj_desc_ptr);
+
+acpi_status
acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state,
union acpi_parse_object *op,
u32 buffer_length,
@@ -259,6 +264,14 @@ acpi_ds_create_node(struct acpi_walk_state *walk_state,
union acpi_parse_object *op);
/*
+ * dspkginit - Package object initialization
+ */
+acpi_status
+acpi_ds_init_package_element(u8 object_type,
+ union acpi_operand_object *source_object,
+ union acpi_generic_state *state, void *context);
+
+/*
* dsutils - Parser/Interpreter interface utility routines
*/
void acpi_ds_clear_implicit_return(struct acpi_walk_state *walk_state);
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index abe8c316908c..95eed442703f 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -315,6 +315,7 @@ ACPI_INIT_GLOBAL(u8, acpi_gbl_force_aml_disassembly, FALSE);
ACPI_INIT_GLOBAL(u8, acpi_gbl_dm_opt_verbose, TRUE);
ACPI_INIT_GLOBAL(u8, acpi_gbl_dm_emit_external_opcodes, FALSE);
ACPI_INIT_GLOBAL(u8, acpi_gbl_do_disassembler_optimizations, TRUE);
+ACPI_INIT_GLOBAL(ACPI_PARSE_OBJECT_LIST, *acpi_gbl_temp_list_head, NULL);
ACPI_GLOBAL(u8, acpi_gbl_dm_opt_disasm);
ACPI_GLOBAL(u8, acpi_gbl_dm_opt_listing);
@@ -368,6 +369,8 @@ ACPI_GLOBAL(const char, *acpi_gbl_pld_vertical_position_list[]);
ACPI_GLOBAL(const char, *acpi_gbl_pld_horizontal_position_list[]);
ACPI_GLOBAL(const char, *acpi_gbl_pld_shape_list[]);
+ACPI_INIT_GLOBAL(u8, acpi_gbl_disasm_flag, FALSE);
+
#endif
/*
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index f9b3f7fef462..0d45b8bb1678 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -199,6 +199,7 @@ struct acpi_namespace_node {
#define ANOBJ_EVALUATED 0x20 /* Set on first evaluation of node */
#define ANOBJ_ALLOCATED_BUFFER 0x40 /* Method AML buffer is dynamic (install_method) */
+#define IMPLICIT_EXTERNAL 0x02 /* iASL only: This object created implicitly via External */
#define ANOBJ_IS_EXTERNAL 0x08 /* iASL only: This object created via External() */
#define ANOBJ_METHOD_NO_RETVAL 0x10 /* iASL only: Method has no return value */
#define ANOBJ_METHOD_SOME_NO_RETVAL 0x20 /* iASL only: Method has at least one return value */
@@ -604,7 +605,7 @@ struct acpi_update_state {
* Pkg state - used to traverse nested package structures
*/
struct acpi_pkg_state {
- ACPI_STATE_COMMON u16 index;
+ ACPI_STATE_COMMON u32 index;
union acpi_operand_object *source_object;
union acpi_operand_object *dest_object;
struct acpi_walk_state *walk_state;
@@ -859,7 +860,7 @@ ACPI_PARSE_COMMON};
* and bytelists.
*/
struct acpi_parse_obj_named {
- ACPI_PARSE_COMMON u8 *path;
+ ACPI_PARSE_COMMON char *path;
u8 *data; /* AML body or bytelist data */
u32 length; /* AML length */
u32 name; /* 4-byte name or zero if no name */
@@ -867,7 +868,7 @@ struct acpi_parse_obj_named {
/* This version is used by the iASL compiler only */
-#define ACPI_MAX_PARSEOP_NAME 20
+#define ACPI_MAX_PARSEOP_NAME 20
struct acpi_parse_obj_asl {
ACPI_PARSE_COMMON union acpi_parse_object *child;
@@ -907,7 +908,7 @@ union acpi_parse_object {
struct asl_comment_state {
u8 comment_type;
u32 spaces_before;
- union acpi_parse_object *latest_parse_node;
+ union acpi_parse_object *latest_parse_op;
union acpi_parse_object *parsing_paren_brace_node;
u8 capture_comments;
};
@@ -1142,8 +1143,13 @@ struct acpi_port_info {
#define ACPI_RESOURCE_NAME_ADDRESS64 0x8A
#define ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64 0x8B
#define ACPI_RESOURCE_NAME_GPIO 0x8C
+#define ACPI_RESOURCE_NAME_PIN_FUNCTION 0x8D
#define ACPI_RESOURCE_NAME_SERIAL_BUS 0x8E
-#define ACPI_RESOURCE_NAME_LARGE_MAX 0x8E
+#define ACPI_RESOURCE_NAME_PIN_CONFIG 0x8F
+#define ACPI_RESOURCE_NAME_PIN_GROUP 0x90
+#define ACPI_RESOURCE_NAME_PIN_GROUP_FUNCTION 0x91
+#define ACPI_RESOURCE_NAME_PIN_GROUP_CONFIG 0x92
+#define ACPI_RESOURCE_NAME_LARGE_MAX 0x92
/*****************************************************************************
*
@@ -1176,12 +1182,18 @@ struct acpi_external_list {
#define ACPI_EXT_INTERNAL_PATH_ALLOCATED 0x04 /* Deallocate internal path on completion */
#define ACPI_EXT_EXTERNAL_EMITTED 0x08 /* External() statement has been emitted */
#define ACPI_EXT_ORIGIN_FROM_OPCODE 0x10 /* External came from a External() opcode */
+#define ACPI_EXT_CONFLICTING_DECLARATION 0x20 /* External has a conflicting declaration within AML */
struct acpi_external_file {
char *path;
struct acpi_external_file *next;
};
+struct acpi_parse_object_list {
+ union acpi_parse_object *op;
+ struct acpi_parse_object_list *next;
+};
+
/*****************************************************************************
*
* Debugger
diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h
index 27c3f982d810..5226146190bf 100644
--- a/drivers/acpi/acpica/acobject.h
+++ b/drivers/acpi/acpica/acobject.h
@@ -122,7 +122,9 @@ struct acpi_object_integer {
_type *pointer; \
u32 length;
-struct acpi_object_string { /* Null terminated, ASCII characters only */
+/* Null terminated, ASCII characters only */
+
+struct acpi_object_string {
ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_BUFFER_INFO(char) /* String in AML stream or allocated string */
};
@@ -211,7 +213,9 @@ struct acpi_object_method {
union acpi_operand_object *notify_list[2]; /* Handlers for system/device notifies */\
union acpi_operand_object *handler; /* Handler for Address space */
-struct acpi_object_notify_common { /* COMMON NOTIFY for POWER, PROCESSOR, DEVICE, and THERMAL */
+/* COMMON NOTIFY for POWER, PROCESSOR, DEVICE, and THERMAL */
+
+struct acpi_object_notify_common {
ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO};
struct acpi_object_device {
@@ -258,7 +262,9 @@ ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO};
u8 access_length; /* For serial regions/fields */
-struct acpi_object_field_common { /* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */
+/* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */
+
+struct acpi_object_field_common {
ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO union acpi_operand_object *region_obj; /* Parent Operation Region object (REGION/BANK fields only) */
};
@@ -333,11 +339,12 @@ struct acpi_object_addr_handler {
struct acpi_object_reference {
ACPI_OBJECT_COMMON_HEADER u8 class; /* Reference Class */
u8 target_type; /* Used for Index Op */
- u8 reserved;
+ u8 resolved; /* Reference has been resolved to a value */
void *object; /* name_op=>HANDLE to obj, index_op=>union acpi_operand_object */
struct acpi_namespace_node *node; /* ref_of or Namepath */
union acpi_operand_object **where; /* Target of Index */
u8 *index_pointer; /* Used for Buffers and Strings */
+ u8 *aml; /* Used for deferred resolution of the ref */
u32 value; /* Used for Local/Arg/Index/ddb_handle */
};
diff --git a/drivers/acpi/acpica/acopcode.h b/drivers/acpi/acpica/acopcode.h
index a5d9af758c52..cbd59a302679 100644
--- a/drivers/acpi/acpica/acopcode.h
+++ b/drivers/acpi/acpica/acopcode.h
@@ -112,7 +112,7 @@
#define ARGP_DWORD_OP ARGP_LIST1 (ARGP_DWORDDATA)
#define ARGP_ELSE_OP ARGP_LIST2 (ARGP_PKGLENGTH, ARGP_TERMLIST)
#define ARGP_EVENT_OP ARGP_LIST1 (ARGP_NAME)
-#define ARGP_EXTERNAL_OP ARGP_LIST3 (ARGP_NAMESTRING, ARGP_BYTEDATA, ARGP_BYTEDATA)
+#define ARGP_EXTERNAL_OP ARGP_LIST3 (ARGP_NAME, ARGP_BYTEDATA, ARGP_BYTEDATA)
#define ARGP_FATAL_OP ARGP_LIST3 (ARGP_BYTEDATA, ARGP_DWORDDATA, ARGP_TERMARG)
#define ARGP_FIELD_OP ARGP_LIST4 (ARGP_PKGLENGTH, ARGP_NAMESTRING, ARGP_BYTEDATA, ARGP_FIELDLIST)
#define ARGP_FIND_SET_LEFT_BIT_OP ARGP_LIST2 (ARGP_TERMARG, ARGP_TARGET)
diff --git a/drivers/acpi/acpica/acpredef.h b/drivers/acpi/acpica/acpredef.h
index dcfc05d40e36..cdfcad8eb74c 100644
--- a/drivers/acpi/acpica/acpredef.h
+++ b/drivers/acpi/acpica/acpredef.h
@@ -581,6 +581,9 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
{{"_HID", METHOD_0ARGS,
METHOD_RETURNS(ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING)}},
+ {{"_HMA", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
+
{{"_HOT", METHOD_0ARGS,
METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
@@ -626,6 +629,19 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
ACPI_RTYPE_INTEGER | ACPI_RTYPE_BUFFER | ACPI_RTYPE_STRING,
10, 0),
+ {{"_LSI", METHOD_0ARGS,
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}},
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 3, 0, 0, 0),
+
+ {{"_LSR", METHOD_2ARGS(ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER),
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}},
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 1,
+ ACPI_RTYPE_BUFFER, 1, 0),
+
+ {{"_LSW",
+ METHOD_3ARGS(ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER, ACPI_TYPE_BUFFER),
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
{{"_MAT", METHOD_0ARGS,
METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
diff --git a/drivers/acpi/acpica/acresrc.h b/drivers/acpi/acpica/acresrc.h
index b4d22f6e48e2..438f3098a093 100644
--- a/drivers/acpi/acpica/acresrc.h
+++ b/drivers/acpi/acpica/acresrc.h
@@ -148,7 +148,10 @@ typedef enum {
ACPI_RSD_UINT16,
ACPI_RSD_UINT32,
ACPI_RSD_UINT64,
- ACPI_RSD_WORDLIST
+ ACPI_RSD_WORDLIST,
+ ACPI_RSD_LABEL,
+ ACPI_RSD_SOURCE_LABEL,
+
} ACPI_RSDUMP_OPCODES;
/* restore default alignment */
@@ -329,6 +332,11 @@ extern struct acpi_rsconvert_info acpi_rs_convert_fixed_dma[];
extern struct acpi_rsconvert_info acpi_rs_convert_i2c_serial_bus[];
extern struct acpi_rsconvert_info acpi_rs_convert_spi_serial_bus[];
extern struct acpi_rsconvert_info acpi_rs_convert_uart_serial_bus[];
+extern struct acpi_rsconvert_info acpi_rs_convert_pin_function[];
+extern struct acpi_rsconvert_info acpi_rs_convert_pin_config[];
+extern struct acpi_rsconvert_info acpi_rs_convert_pin_group[];
+extern struct acpi_rsconvert_info acpi_rs_convert_pin_group_function[];
+extern struct acpi_rsconvert_info acpi_rs_convert_pin_group_config[];
/* These resources require separate get/set tables */
@@ -372,12 +380,17 @@ extern struct acpi_rsdump_info acpi_rs_dump_ext_address64[];
extern struct acpi_rsdump_info acpi_rs_dump_ext_irq[];
extern struct acpi_rsdump_info acpi_rs_dump_generic_reg[];
extern struct acpi_rsdump_info acpi_rs_dump_gpio[];
+extern struct acpi_rsdump_info acpi_rs_dump_pin_function[];
extern struct acpi_rsdump_info acpi_rs_dump_fixed_dma[];
extern struct acpi_rsdump_info acpi_rs_dump_common_serial_bus[];
extern struct acpi_rsdump_info acpi_rs_dump_i2c_serial_bus[];
extern struct acpi_rsdump_info acpi_rs_dump_spi_serial_bus[];
extern struct acpi_rsdump_info acpi_rs_dump_uart_serial_bus[];
extern struct acpi_rsdump_info acpi_rs_dump_general_flags[];
+extern struct acpi_rsdump_info acpi_rs_dump_pin_config[];
+extern struct acpi_rsdump_info acpi_rs_dump_pin_group[];
+extern struct acpi_rsdump_info acpi_rs_dump_pin_group_function[];
+extern struct acpi_rsdump_info acpi_rs_dump_pin_group_config[];
#endif
#endif /* __ACRESRC_H__ */
diff --git a/drivers/acpi/acpica/actables.h b/drivers/acpi/acpica/actables.h
index c8da453bd960..84a3ceb6e384 100644
--- a/drivers/acpi/acpica/actables.h
+++ b/drivers/acpi/acpica/actables.h
@@ -76,7 +76,8 @@ void acpi_tb_release_temp_table(struct acpi_table_desc *table_desc);
acpi_status acpi_tb_validate_temp_table(struct acpi_table_desc *table_desc);
acpi_status
-acpi_tb_verify_temp_table(struct acpi_table_desc *table_desc, char *signature);
+acpi_tb_verify_temp_table(struct acpi_table_desc *table_desc,
+ char *signature, u32 *table_index);
u8 acpi_tb_is_table_loaded(u32 table_index);
@@ -132,6 +133,8 @@ acpi_tb_install_and_load_table(acpi_physical_address address,
acpi_status acpi_tb_unload_table(u32 table_index);
+void acpi_tb_notify_table(u32 event, void *table);
+
void acpi_tb_terminate(void);
acpi_status acpi_tb_delete_namespace_by_owner(u32 table_index);
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index 6f28cfae2212..745134ade35f 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -85,6 +85,7 @@ extern const char *acpi_gbl_bpb_decode[];
extern const char *acpi_gbl_sb_decode[];
extern const char *acpi_gbl_fc_decode[];
extern const char *acpi_gbl_pt_decode[];
+extern const char *acpi_gbl_ptyp_decode[];
#endif
/*
@@ -515,7 +516,7 @@ union acpi_generic_state *acpi_ut_create_update_state(union acpi_operand_object
union acpi_generic_state *acpi_ut_create_pkg_state(void *internal_object,
void *external_object,
- u16 index);
+ u32 index);
acpi_status
acpi_ut_create_update_state_and_push(union acpi_operand_object *object,
@@ -537,6 +538,13 @@ acpi_status
acpi_ut_short_divide(u64 in_dividend,
u32 divisor, u64 *out_quotient, u32 *out_remainder);
+acpi_status
+acpi_ut_short_multiply(u64 in_multiplicand, u32 multiplier, u64 *outproduct);
+
+acpi_status acpi_ut_short_shift_left(u64 operand, u32 count, u64 *out_result);
+
+acpi_status acpi_ut_short_shift_right(u64 operand, u32 count, u64 *out_result);
+
/*
* utmisc
*/
diff --git a/drivers/acpi/acpica/amlcode.h b/drivers/acpi/acpica/amlcode.h
index 176f7e9b4d0e..f54dc5a34bdc 100644
--- a/drivers/acpi/acpica/amlcode.h
+++ b/drivers/acpi/acpica/amlcode.h
@@ -313,6 +313,11 @@
* #A is the number of required arguments
* #T is the number of target operands
* #R indicates whether there is a return value
+ *
+ * These types are used for the top-level dispatch of the AML
+ * opcode. They group similar operators that can share common
+ * front-end code before dispatch to the final code that implements
+ * the operator.
*/
/*
@@ -353,42 +358,42 @@
* The opcode Type is used in a dispatch table, do not change
* or add anything new without updating the table.
*/
-#define AML_TYPE_EXEC_0A_0T_1R 0x00
-#define AML_TYPE_EXEC_1A_0T_0R 0x01 /* Monadic1 */
-#define AML_TYPE_EXEC_1A_0T_1R 0x02 /* Monadic2 */
-#define AML_TYPE_EXEC_1A_1T_0R 0x03
-#define AML_TYPE_EXEC_1A_1T_1R 0x04 /* monadic2_r */
-#define AML_TYPE_EXEC_2A_0T_0R 0x05 /* Dyadic1 */
-#define AML_TYPE_EXEC_2A_0T_1R 0x06 /* Dyadic2 */
-#define AML_TYPE_EXEC_2A_1T_1R 0x07 /* dyadic2_r */
-#define AML_TYPE_EXEC_2A_2T_1R 0x08
-#define AML_TYPE_EXEC_3A_0T_0R 0x09
-#define AML_TYPE_EXEC_3A_1T_1R 0x0A
-#define AML_TYPE_EXEC_6A_0T_1R 0x0B
+#define AML_TYPE_EXEC_0A_0T_1R 0x00 /* 0 Args, 0 Target, 1 ret_val */
+#define AML_TYPE_EXEC_1A_0T_0R 0x01 /* 1 Args, 0 Target, 0 ret_val */
+#define AML_TYPE_EXEC_1A_0T_1R 0x02 /* 1 Args, 0 Target, 1 ret_val */
+#define AML_TYPE_EXEC_1A_1T_0R 0x03 /* 1 Args, 1 Target, 0 ret_val */
+#define AML_TYPE_EXEC_1A_1T_1R 0x04 /* 1 Args, 1 Target, 1 ret_val */
+#define AML_TYPE_EXEC_2A_0T_0R 0x05 /* 2 Args, 0 Target, 0 ret_val */
+#define AML_TYPE_EXEC_2A_0T_1R 0x06 /* 2 Args, 0 Target, 1 ret_val */
+#define AML_TYPE_EXEC_2A_1T_1R 0x07 /* 2 Args, 1 Target, 1 ret_val */
+#define AML_TYPE_EXEC_2A_2T_1R 0x08 /* 2 Args, 2 Target, 1 ret_val */
+#define AML_TYPE_EXEC_3A_0T_0R 0x09 /* 3 Args, 0 Target, 0 ret_val */
+#define AML_TYPE_EXEC_3A_1T_1R 0x0A /* 3 Args, 1 Target, 1 ret_val */
+#define AML_TYPE_EXEC_6A_0T_1R 0x0B /* 6 Args, 0 Target, 1 ret_val */
/* End of types used in dispatch table */
-#define AML_TYPE_LITERAL 0x0B
-#define AML_TYPE_CONSTANT 0x0C
-#define AML_TYPE_METHOD_ARGUMENT 0x0D
-#define AML_TYPE_LOCAL_VARIABLE 0x0E
-#define AML_TYPE_DATA_TERM 0x0F
+#define AML_TYPE_LITERAL 0x0C
+#define AML_TYPE_CONSTANT 0x0D
+#define AML_TYPE_METHOD_ARGUMENT 0x0E
+#define AML_TYPE_LOCAL_VARIABLE 0x0F
+#define AML_TYPE_DATA_TERM 0x10
/* Generic for an op that returns a value */
-#define AML_TYPE_METHOD_CALL 0x10
+#define AML_TYPE_METHOD_CALL 0x11
/* Miscellaneous types */
-#define AML_TYPE_CREATE_FIELD 0x11
-#define AML_TYPE_CREATE_OBJECT 0x12
-#define AML_TYPE_CONTROL 0x13
-#define AML_TYPE_NAMED_NO_OBJ 0x14
-#define AML_TYPE_NAMED_FIELD 0x15
-#define AML_TYPE_NAMED_SIMPLE 0x16
-#define AML_TYPE_NAMED_COMPLEX 0x17
-#define AML_TYPE_RETURN 0x18
-#define AML_TYPE_UNDEFINED 0x19
-#define AML_TYPE_BOGUS 0x1A
+#define AML_TYPE_CREATE_FIELD 0x12
+#define AML_TYPE_CREATE_OBJECT 0x13
+#define AML_TYPE_CONTROL 0x14
+#define AML_TYPE_NAMED_NO_OBJ 0x15
+#define AML_TYPE_NAMED_FIELD 0x16
+#define AML_TYPE_NAMED_SIMPLE 0x17
+#define AML_TYPE_NAMED_COMPLEX 0x18
+#define AML_TYPE_RETURN 0x19
+#define AML_TYPE_UNDEFINED 0x1A
+#define AML_TYPE_BOGUS 0x1B
/* AML Package Length encodings */
diff --git a/drivers/acpi/acpica/amlresrc.h b/drivers/acpi/acpica/amlresrc.h
index 653a3d1ef5d5..1236e9a414e4 100644
--- a/drivers/acpi/acpica/amlresrc.h
+++ b/drivers/acpi/acpica/amlresrc.h
@@ -65,6 +65,7 @@
#define ACPI_RESTAG_DRIVESTRENGTH "_DRS"
#define ACPI_RESTAG_ENDIANNESS "_END"
#define ACPI_RESTAG_FLOWCONTROL "_FLC"
+#define ACPI_RESTAG_FUNCTION "_FUN"
#define ACPI_RESTAG_GRANULARITY "_GRA"
#define ACPI_RESTAG_INTERRUPT "_INT"
#define ACPI_RESTAG_INTERRUPTLEVEL "_LL_" /* active_lo(1), active_hi(0) */
@@ -84,6 +85,8 @@
#define ACPI_RESTAG_PHASE "_PHA"
#define ACPI_RESTAG_PIN "_PIN"
#define ACPI_RESTAG_PINCONFIG "_PPI"
+#define ACPI_RESTAG_PINCONFIG_TYPE "_TYP"
+#define ACPI_RESTAG_PINCONFIG_VALUE "_VAL"
#define ACPI_RESTAG_POLARITY "_POL"
#define ACPI_RESTAG_REGISTERBITOFFSET "_RBO"
#define ACPI_RESTAG_REGISTERBITWIDTH "_RBW"
@@ -404,6 +407,102 @@ struct aml_resource_uart_serialbus {
#define AML_RESOURCE_UART_TYPE_REVISION 1 /* ACPI 5.0 */
#define AML_RESOURCE_UART_MIN_DATA_LEN 10
+struct aml_resource_pin_function {
+ AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id;
+ u16 flags;
+ u8 pin_config;
+ u16 function_number;
+ u16 pin_table_offset;
+ u8 res_source_index;
+ u16 res_source_offset;
+ u16 vendor_offset;
+ u16 vendor_length;
+ /*
+ * Optional fields follow immediately:
+ * 1) PIN list (Words)
+ * 2) Resource Source String
+ * 3) Vendor Data bytes
+ */
+};
+
+#define AML_RESOURCE_PIN_FUNCTION_REVISION 1 /* ACPI 6.2 */
+
+struct aml_resource_pin_config {
+ AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id;
+ u16 flags;
+ u8 pin_config_type;
+ u32 pin_config_value;
+ u16 pin_table_offset;
+ u8 res_source_index;
+ u16 res_source_offset;
+ u16 vendor_offset;
+ u16 vendor_length;
+ /*
+ * Optional fields follow immediately:
+ * 1) PIN list (Words)
+ * 2) Resource Source String
+ * 3) Vendor Data bytes
+ */
+};
+
+#define AML_RESOURCE_PIN_CONFIG_REVISION 1 /* ACPI 6.2 */
+
+struct aml_resource_pin_group {
+ AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id;
+ u16 flags;
+ u16 pin_table_offset;
+ u16 label_offset;
+ u16 vendor_offset;
+ u16 vendor_length;
+ /*
+ * Optional fields follow immediately:
+ * 1) PIN list (Words)
+ * 2) Resource Label String
+ * 3) Vendor Data bytes
+ */
+};
+
+#define AML_RESOURCE_PIN_GROUP_REVISION 1 /* ACPI 6.2 */
+
+struct aml_resource_pin_group_function {
+ AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id;
+ u16 flags;
+ u16 function_number;
+ u8 res_source_index;
+ u16 res_source_offset;
+ u16 res_source_label_offset;
+ u16 vendor_offset;
+ u16 vendor_length;
+ /*
+ * Optional fields follow immediately:
+ * 1) Resource Source String
+ * 2) Resource Source Label String
+ * 3) Vendor Data bytes
+ */
+};
+
+#define AML_RESOURCE_PIN_GROUP_FUNCTION_REVISION 1 /* ACPI 6.2 */
+
+struct aml_resource_pin_group_config {
+ AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id;
+ u16 flags;
+ u8 pin_config_type;
+ u32 pin_config_value;
+ u8 res_source_index;
+ u16 res_source_offset;
+ u16 res_source_label_offset;
+ u16 vendor_offset;
+ u16 vendor_length;
+ /*
+ * Optional fields follow immediately:
+ * 1) Resource Source String
+ * 2) Resource Source Label String
+ * 3) Vendor Data bytes
+ */
+};
+
+#define AML_RESOURCE_PIN_GROUP_CONFIG_REVISION 1 /* ACPI 6.2 */
+
/* restore default alignment */
#pragma pack()
@@ -446,6 +545,11 @@ union aml_resource {
struct aml_resource_spi_serialbus spi_serial_bus;
struct aml_resource_uart_serialbus uart_serial_bus;
struct aml_resource_common_serialbus common_serial_bus;
+ struct aml_resource_pin_function pin_function;
+ struct aml_resource_pin_config pin_config;
+ struct aml_resource_pin_group pin_group;
+ struct aml_resource_pin_group_function pin_group_function;
+ struct aml_resource_pin_group_config pin_group_config;
/* Utility overlays */
diff --git a/drivers/acpi/acpica/dbdisply.c b/drivers/acpi/acpica/dbdisply.c
index 46bf270ac525..5a606eac0c22 100644
--- a/drivers/acpi/acpica/dbdisply.c
+++ b/drivers/acpi/acpica/dbdisply.c
@@ -310,7 +310,7 @@ dump_node:
}
else {
- acpi_os_printf("Object (%p) Pathname: %s\n",
+ acpi_os_printf("Object %p: Namespace Node - Pathname: %s\n",
node, (char *)ret_buf.pointer);
}
@@ -326,7 +326,7 @@ dump_node:
obj_desc = acpi_ns_get_attached_object(node);
if (obj_desc) {
- acpi_os_printf("\nAttached Object (%p):\n", obj_desc);
+ acpi_os_printf("\nAttached Object %p:", obj_desc);
if (!acpi_os_readable
(obj_desc, sizeof(union acpi_operand_object))) {
acpi_os_printf
@@ -335,9 +335,36 @@ dump_node:
return;
}
- acpi_ut_debug_dump_buffer((void *)obj_desc,
- sizeof(union acpi_operand_object),
- display, ACPI_UINT32_MAX);
+ if (ACPI_GET_DESCRIPTOR_TYPE(((struct acpi_namespace_node *)
+ obj_desc)) ==
+ ACPI_DESC_TYPE_NAMED) {
+ acpi_os_printf(" Namespace Node - ");
+ status =
+ acpi_get_name((struct acpi_namespace_node *)
+ obj_desc,
+ ACPI_FULL_PATHNAME_NO_TRAILING,
+ &ret_buf);
+ if (ACPI_FAILURE(status)) {
+ acpi_os_printf
+ ("Could not convert name to pathname\n");
+ } else {
+ acpi_os_printf("Pathname: %s",
+ (char *)ret_buf.pointer);
+ }
+
+ acpi_os_printf("\n");
+ acpi_ut_debug_dump_buffer((void *)obj_desc,
+ sizeof(struct
+ acpi_namespace_node),
+ display, ACPI_UINT32_MAX);
+ } else {
+ acpi_os_printf("\n");
+ acpi_ut_debug_dump_buffer((void *)obj_desc,
+ sizeof(union
+ acpi_operand_object),
+ display, ACPI_UINT32_MAX);
+ }
+
acpi_ex_dump_object_descriptor(obj_desc, 1);
}
}
diff --git a/drivers/acpi/acpica/dbexec.c b/drivers/acpi/acpica/dbexec.c
index b611cd92b5f5..3b30319752f0 100644
--- a/drivers/acpi/acpica/dbexec.c
+++ b/drivers/acpi/acpica/dbexec.c
@@ -181,6 +181,18 @@ acpi_db_execute_method(struct acpi_db_method_info *info,
acpi_gbl_method_executing = FALSE;
if (ACPI_FAILURE(status)) {
+ if ((status == AE_ABORT_METHOD) || acpi_gbl_abort_method) {
+
+ /* Clear the abort and fall back to the debugger prompt */
+
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Aborting top-level method"));
+
+ acpi_gbl_abort_method = FALSE;
+ status = AE_OK;
+ goto cleanup;
+ }
+
ACPI_EXCEPTION((AE_INFO, status,
"while executing %s from debugger",
info->pathname));
diff --git a/drivers/acpi/acpica/dbobject.c b/drivers/acpi/acpica/dbobject.c
index f2252b1ac0b3..e7b415c20aa8 100644
--- a/drivers/acpi/acpica/dbobject.c
+++ b/drivers/acpi/acpica/dbobject.c
@@ -448,7 +448,7 @@ void acpi_db_decode_locals(struct acpi_walk_state *walk_state)
if (display_locals) {
acpi_os_printf
- ("\nInitialized Local Variables for method [%4.4s]:\n",
+ ("\nInitialized Local Variables for Method [%4.4s]:\n",
acpi_ut_get_node_name(node));
for (i = 0; i < ACPI_METHOD_NUM_LOCALS; i++) {
@@ -461,7 +461,7 @@ void acpi_db_decode_locals(struct acpi_walk_state *walk_state)
}
} else {
acpi_os_printf
- ("No Local Variables are initialized for method [%4.4s]\n",
+ ("No Local Variables are initialized for Method [%4.4s]\n",
acpi_ut_get_node_name(node));
}
}
@@ -515,7 +515,7 @@ void acpi_db_decode_arguments(struct acpi_walk_state *walk_state)
acpi_os_printf("Initialized Arguments for Method [%4.4s]: "
"(%X arguments defined for method invocation)\n",
acpi_ut_get_node_name(node),
- obj_desc->method.param_count);
+ node->object->method.param_count);
for (i = 0; i < ACPI_METHOD_NUM_ARGS; i++) {
obj_desc = walk_state->arguments[i].object;
diff --git a/drivers/acpi/acpica/dbxface.c b/drivers/acpi/acpica/dbxface.c
index 8f665d94b8b5..b6985323e7eb 100644
--- a/drivers/acpi/acpica/dbxface.c
+++ b/drivers/acpi/acpica/dbxface.c
@@ -244,7 +244,7 @@ acpi_db_single_step(struct acpi_walk_state *walk_state,
if ((acpi_gbl_db_output_to_file) ||
(acpi_dbg_level & ACPI_LV_PARSE)) {
acpi_os_printf
- ("\n[AmlDebug] Next AML Opcode to execute:\n");
+ ("\nAML Debug: Next AML Opcode to execute:\n");
}
/*
diff --git a/drivers/acpi/acpica/dsargs.c b/drivers/acpi/acpica/dsargs.c
index 287b3fd73cfc..2873455c986d 100644
--- a/drivers/acpi/acpica/dsargs.c
+++ b/drivers/acpi/acpica/dsargs.c
@@ -82,7 +82,7 @@ acpi_ds_execute_arguments(struct acpi_namespace_node *node,
union acpi_parse_object *op;
struct acpi_walk_state *walk_state;
- ACPI_FUNCTION_TRACE(ds_execute_arguments);
+ ACPI_FUNCTION_TRACE_PTR(ds_execute_arguments, aml_start);
/* Allocate a new parser op to be the root of the parsed tree */
@@ -338,7 +338,8 @@ acpi_status acpi_ds_get_package_arguments(union acpi_operand_object *obj_desc)
return_ACPI_STATUS(AE_AML_INTERNAL);
}
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Package Arg Init\n"));
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Package Argument Init, AML Ptr: %p\n",
+ obj_desc->package.aml_start));
/* Execute the AML code for the term_arg arguments */
diff --git a/drivers/acpi/acpica/dsdebug.c b/drivers/acpi/acpica/dsdebug.c
index 4d885eb8eda9..d1f457eda980 100644
--- a/drivers/acpi/acpica/dsdebug.c
+++ b/drivers/acpi/acpica/dsdebug.c
@@ -196,6 +196,7 @@ acpi_ds_dump_method_stack(acpi_status status,
op->common.next = NULL;
#ifdef ACPI_DISASSEMBLER
+ acpi_os_printf("Failed at ");
acpi_dm_disassemble(next_walk_state, op,
ACPI_UINT32_MAX);
#endif
diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c
index c5dccc54307d..7bcf5f5ea029 100644
--- a/drivers/acpi/acpica/dsfield.c
+++ b/drivers/acpi/acpica/dsfield.c
@@ -184,6 +184,7 @@ acpi_ds_create_buffer_field(union acpi_parse_object *op,
/* Execute flag should always be set when this function is entered */
if (!(walk_state->parse_flags & ACPI_PARSE_EXECUTE)) {
+ ACPI_ERROR((AE_INFO, "Parse execute mode is not set"));
return_ACPI_STATUS(AE_AML_INTERNAL);
}
@@ -556,6 +557,7 @@ acpi_ds_init_field_objects(union acpi_parse_object *op,
return_ACPI_STATUS(AE_OK);
}
+ ACPI_ERROR((AE_INFO, "Parse deferred mode is not set"));
return_ACPI_STATUS(AE_AML_INTERNAL);
}
diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c
index 31c9c7aec3d5..d7fc36917c67 100644
--- a/drivers/acpi/acpica/dsmethod.c
+++ b/drivers/acpi/acpica/dsmethod.c
@@ -212,6 +212,7 @@ acpi_status
acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state)
{
u32 aml_offset;
+ acpi_name name = 0;
ACPI_FUNCTION_ENTRY();
@@ -237,10 +238,13 @@ acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state)
walk_state->parser_state.
aml_start);
- status = acpi_gbl_exception_handler(status,
- walk_state->method_node ?
- walk_state->method_node->
- name.integer : 0,
+ if (walk_state->method_node) {
+ name = walk_state->method_node->name.integer;
+ } else if (walk_state->deferred_node) {
+ name = walk_state->deferred_node->name.integer;
+ }
+
+ status = acpi_gbl_exception_handler(status, name,
walk_state->opcode,
aml_offset, NULL);
acpi_ex_enter_interpreter();
diff --git a/drivers/acpi/acpica/dsobject.c b/drivers/acpi/acpica/dsobject.c
index 7df3152ed856..82448551781b 100644
--- a/drivers/acpi/acpica/dsobject.c
+++ b/drivers/acpi/acpica/dsobject.c
@@ -52,12 +52,6 @@
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME("dsobject")
-/* Local prototypes */
-static acpi_status
-acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
- union acpi_parse_object *op,
- union acpi_operand_object **obj_desc_ptr);
-
#ifndef ACPI_NO_METHOD_EXECUTION
/*******************************************************************************
*
@@ -73,15 +67,13 @@ acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
* Simple objects are any objects other than a package object!
*
******************************************************************************/
-
-static acpi_status
+acpi_status
acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
union acpi_parse_object *op,
union acpi_operand_object **obj_desc_ptr)
{
union acpi_operand_object *obj_desc;
acpi_status status;
- acpi_object_type type;
ACPI_FUNCTION_TRACE(ds_build_internal_object);
@@ -89,140 +81,47 @@ acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) {
/*
* This is a named object reference. If this name was
- * previously looked up in the namespace, it was stored in this op.
- * Otherwise, go ahead and look it up now
+ * previously looked up in the namespace, it was stored in
+ * this op. Otherwise, go ahead and look it up now
*/
if (!op->common.node) {
- status = acpi_ns_lookup(walk_state->scope_info,
- op->common.value.string,
- ACPI_TYPE_ANY,
- ACPI_IMODE_EXECUTE,
- ACPI_NS_SEARCH_PARENT |
- ACPI_NS_DONT_OPEN_SCOPE, NULL,
- ACPI_CAST_INDIRECT_PTR(struct
- acpi_namespace_node,
- &(op->
- common.
- node)));
- if (ACPI_FAILURE(status)) {
-
- /* Check if we are resolving a named reference within a package */
-
- if ((status == AE_NOT_FOUND)
- && (acpi_gbl_enable_interpreter_slack)
- &&
- ((op->common.parent->common.aml_opcode ==
- AML_PACKAGE_OP)
- || (op->common.parent->common.aml_opcode ==
- AML_VARIABLE_PACKAGE_OP))) {
- /*
- * We didn't find the target and we are populating elements
- * of a package - ignore if slack enabled. Some ASL code
- * contains dangling invalid references in packages and
- * expects that no exception will be issued. Leave the
- * element as a null element. It cannot be used, but it
- * can be overwritten by subsequent ASL code - this is
- * typically the case.
- */
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Ignoring unresolved reference in package [%4.4s]\n",
- walk_state->
- scope_info->scope.
- node->name.ascii));
-
- return_ACPI_STATUS(AE_OK);
- } else {
- ACPI_ERROR_NAMESPACE(op->common.value.
- string, status);
- }
-
- return_ACPI_STATUS(status);
- }
- }
-
- /* Special object resolution for elements of a package */
-
- if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) ||
- (op->common.parent->common.aml_opcode ==
- AML_VARIABLE_PACKAGE_OP)) {
- /*
- * Attempt to resolve the node to a value before we insert it into
- * the package. If this is a reference to a common data type,
- * resolve it immediately. According to the ACPI spec, package
- * elements can only be "data objects" or method references.
- * Attempt to resolve to an Integer, Buffer, String or Package.
- * If cannot, return the named reference (for things like Devices,
- * Methods, etc.) Buffer Fields and Fields will resolve to simple
- * objects (int/buf/str/pkg).
- *
- * NOTE: References to things like Devices, Methods, Mutexes, etc.
- * will remain as named references. This behavior is not described
- * in the ACPI spec, but it appears to be an oversight.
- */
- obj_desc =
- ACPI_CAST_PTR(union acpi_operand_object,
- op->common.node);
-
- status =
- acpi_ex_resolve_node_to_value(ACPI_CAST_INDIRECT_PTR
- (struct
- acpi_namespace_node,
- &obj_desc),
- walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Special handling for Alias objects. We need to setup the type
- * and the Op->Common.Node to point to the Alias target. Note,
- * Alias has at most one level of indirection internally.
- */
- type = op->common.node->type;
- if (type == ACPI_TYPE_LOCAL_ALIAS) {
- type = obj_desc->common.type;
- op->common.node =
- ACPI_CAST_PTR(struct acpi_namespace_node,
- op->common.node->object);
- }
-
- switch (type) {
- /*
- * For these types, we need the actual node, not the subobject.
- * However, the subobject did not get an extra reference count above.
- *
- * TBD: should ex_resolve_node_to_value be changed to fix this?
- */
- case ACPI_TYPE_DEVICE:
- case ACPI_TYPE_THERMAL:
-
- acpi_ut_add_reference(op->common.node->object);
- /*lint -fallthrough */
- /*
- * For these types, we need the actual node, not the subobject.
- * The subobject got an extra reference count in ex_resolve_node_to_value.
- */
- case ACPI_TYPE_MUTEX:
- case ACPI_TYPE_METHOD:
- case ACPI_TYPE_POWER:
- case ACPI_TYPE_PROCESSOR:
- case ACPI_TYPE_EVENT:
- case ACPI_TYPE_REGION:
-
- /* We will create a reference object for these types below */
- break;
+ /* Check if we are resolving a named reference within a package */
- default:
+ if ((op->common.parent->common.aml_opcode ==
+ AML_PACKAGE_OP)
+ || (op->common.parent->common.aml_opcode ==
+ AML_VARIABLE_PACKAGE_OP)) {
/*
- * All other types - the node was resolved to an actual
- * object, we are done.
+ * We won't resolve package elements here, we will do this
+ * after all ACPI tables are loaded into the namespace. This
+ * behavior supports both forward references to named objects
+ * and external references to objects in other tables.
*/
- goto exit;
+ goto create_new_object;
+ } else {
+ status = acpi_ns_lookup(walk_state->scope_info,
+ op->common.value.string,
+ ACPI_TYPE_ANY,
+ ACPI_IMODE_EXECUTE,
+ ACPI_NS_SEARCH_PARENT |
+ ACPI_NS_DONT_OPEN_SCOPE,
+ NULL,
+ ACPI_CAST_INDIRECT_PTR
+ (struct
+ acpi_namespace_node,
+ &(op->common.node)));
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR_NAMESPACE(op->common.value.
+ string, status);
+ return_ACPI_STATUS(status);
+ }
}
}
}
+create_new_object:
+
/* Create and init a new internal ACPI object */
obj_desc = acpi_ut_create_internal_object((acpi_ps_get_opcode_info
@@ -240,7 +139,27 @@ acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
return_ACPI_STATUS(status);
}
-exit:
+ /*
+ * Handling for unresolved package reference elements.
+ * These are elements that are namepaths.
+ */
+ if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) ||
+ (op->common.parent->common.aml_opcode == AML_VARIABLE_PACKAGE_OP)) {
+ obj_desc->reference.resolved = TRUE;
+
+ if ((op->common.aml_opcode == AML_INT_NAMEPATH_OP) &&
+ !obj_desc->reference.node) {
+ /*
+ * Name was unresolved above.
+ * Get the prefix node for later lookup
+ */
+ obj_desc->reference.node =
+ walk_state->scope_info->scope.node;
+ obj_desc->reference.aml = op->common.aml;
+ obj_desc->reference.resolved = FALSE;
+ }
+ }
+
*obj_desc_ptr = obj_desc;
return_ACPI_STATUS(status);
}
@@ -351,200 +270,6 @@ acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state,
/*******************************************************************************
*
- * FUNCTION: acpi_ds_build_internal_package_obj
- *
- * PARAMETERS: walk_state - Current walk state
- * op - Parser object to be translated
- * element_count - Number of elements in the package - this is
- * the num_elements argument to Package()
- * obj_desc_ptr - Where the ACPI internal object is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Translate a parser Op package object to the equivalent
- * namespace object
- *
- * NOTE: The number of elements in the package will be always be the num_elements
- * count, regardless of the number of elements in the package list. If
- * num_elements is smaller, only that many package list elements are used.
- * if num_elements is larger, the Package object is padded out with
- * objects of type Uninitialized (as per ACPI spec.)
- *
- * Even though the ASL compilers do not allow num_elements to be smaller
- * than the Package list length (for the fixed length package opcode), some
- * BIOS code modifies the AML on the fly to adjust the num_elements, and
- * this code compensates for that. This also provides compatibility with
- * other AML interpreters.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
- union acpi_parse_object *op,
- u32 element_count,
- union acpi_operand_object **obj_desc_ptr)
-{
- union acpi_parse_object *arg;
- union acpi_parse_object *parent;
- union acpi_operand_object *obj_desc = NULL;
- acpi_status status = AE_OK;
- u32 i;
- u16 index;
- u16 reference_count;
-
- ACPI_FUNCTION_TRACE(ds_build_internal_package_obj);
-
- /* Find the parent of a possibly nested package */
-
- parent = op->common.parent;
- while ((parent->common.aml_opcode == AML_PACKAGE_OP) ||
- (parent->common.aml_opcode == AML_VARIABLE_PACKAGE_OP)) {
- parent = parent->common.parent;
- }
-
- /*
- * If we are evaluating a Named package object "Name (xxxx, Package)",
- * the package object already exists, otherwise it must be created.
- */
- obj_desc = *obj_desc_ptr;
- if (!obj_desc) {
- obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE);
- *obj_desc_ptr = obj_desc;
- if (!obj_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- obj_desc->package.node = parent->common.node;
- }
-
- /*
- * Allocate the element array (array of pointers to the individual
- * objects) based on the num_elements parameter. Add an extra pointer slot
- * so that the list is always null terminated.
- */
- obj_desc->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size)
- element_count +
- 1) * sizeof(void *));
-
- if (!obj_desc->package.elements) {
- acpi_ut_delete_object_desc(obj_desc);
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- obj_desc->package.count = element_count;
-
- /*
- * Initialize the elements of the package, up to the num_elements count.
- * Package is automatically padded with uninitialized (NULL) elements
- * if num_elements is greater than the package list length. Likewise,
- * Package is truncated if num_elements is less than the list length.
- */
- arg = op->common.value.arg;
- arg = arg->common.next;
- for (i = 0; arg && (i < element_count); i++) {
- if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
- if (arg->common.node->type == ACPI_TYPE_METHOD) {
- /*
- * A method reference "looks" to the parser to be a method
- * invocation, so we special case it here
- */
- arg->common.aml_opcode = AML_INT_NAMEPATH_OP;
- status =
- acpi_ds_build_internal_object(walk_state,
- arg,
- &obj_desc->
- package.
- elements[i]);
- } else {
- /* This package element is already built, just get it */
-
- obj_desc->package.elements[i] =
- ACPI_CAST_PTR(union acpi_operand_object,
- arg->common.node);
- }
- } else {
- status =
- acpi_ds_build_internal_object(walk_state, arg,
- &obj_desc->package.
- elements[i]);
- }
-
- if (*obj_desc_ptr) {
-
- /* Existing package, get existing reference count */
-
- reference_count =
- (*obj_desc_ptr)->common.reference_count;
- if (reference_count > 1) {
-
- /* Make new element ref count match original ref count */
-
- for (index = 0; index < (reference_count - 1);
- index++) {
- acpi_ut_add_reference((obj_desc->
- package.
- elements[i]));
- }
- }
- }
-
- arg = arg->common.next;
- }
-
- /* Check for match between num_elements and actual length of package_list */
-
- if (arg) {
- /*
- * num_elements was exhausted, but there are remaining elements in the
- * package_list. Truncate the package to num_elements.
- *
- * Note: technically, this is an error, from ACPI spec: "It is an error
- * for NumElements to be less than the number of elements in the
- * PackageList". However, we just print a message and
- * no exception is returned. This provides Windows compatibility. Some
- * BIOSs will alter the num_elements on the fly, creating this type
- * of ill-formed package object.
- */
- while (arg) {
- /*
- * We must delete any package elements that were created earlier
- * and are not going to be used because of the package truncation.
- */
- if (arg->common.node) {
- acpi_ut_remove_reference(ACPI_CAST_PTR
- (union
- acpi_operand_object,
- arg->common.node));
- arg->common.node = NULL;
- }
-
- /* Find out how many elements there really are */
-
- i++;
- arg = arg->common.next;
- }
-
- ACPI_INFO(("Actual Package length (%u) is larger than "
- "NumElements field (%u), truncated",
- i, element_count));
- } else if (i < element_count) {
- /*
- * Arg list (elements) was exhausted, but we did not reach num_elements count.
- * Note: this is not an error, the package is padded out with NULLs.
- */
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Package List length (%u) smaller than NumElements "
- "count (%u), padded with null elements\n",
- i, element_count));
- }
-
- obj_desc->package.flags |= AOPOBJ_DATA_VALID;
- op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_desc);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
* FUNCTION: acpi_ds_create_node
*
* PARAMETERS: walk_state - Current walk state
@@ -662,11 +387,20 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
case ACPI_TYPE_PACKAGE:
/*
- * Defer evaluation of Package term_arg operand
+ * Defer evaluation of Package term_arg operand and all
+ * package elements. (01/2017): We defer the element
+ * resolution to allow forward references from the package
+ * in order to provide compatibility with other ACPI
+ * implementations.
*/
obj_desc->package.node =
ACPI_CAST_PTR(struct acpi_namespace_node,
walk_state->operands[0]);
+
+ if (!op->named.data) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
obj_desc->package.aml_start = op->named.data;
obj_desc->package.aml_length = op->named.length;
break;
@@ -818,9 +552,11 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
/* Node was saved in Op */
obj_desc->reference.node = op->common.node;
- obj_desc->reference.object =
- op->common.node->object;
obj_desc->reference.class = ACPI_REFCLASS_NAME;
+ if (op->common.node) {
+ obj_desc->reference.object =
+ op->common.node->object;
+ }
break;
case AML_DEBUG_OP:
diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c
index 9a8f8a992b3e..0336df7ac47d 100644
--- a/drivers/acpi/acpica/dsopcode.c
+++ b/drivers/acpi/acpica/dsopcode.c
@@ -227,13 +227,12 @@ acpi_ds_init_buffer_field(u16 aml_opcode,
/* Entire field must fit within the current length of the buffer */
- if ((bit_offset + bit_count) > (8 * (u32) buffer_desc->buffer.length)) {
+ if ((bit_offset + bit_count) > (8 * (u32)buffer_desc->buffer.length)) {
ACPI_ERROR((AE_INFO,
- "Field [%4.4s] at %u exceeds Buffer [%4.4s] size %u (bits)",
- acpi_ut_get_node_name(result_desc),
- bit_offset + bit_count,
- acpi_ut_get_node_name(buffer_desc->buffer.node),
- 8 * (u32) buffer_desc->buffer.length));
+ "Field [%4.4s] at bit offset/length %u/%u "
+ "exceeds size of target Buffer (%u bits)",
+ acpi_ut_get_node_name(result_desc), bit_offset,
+ bit_count, 8 * (u32)buffer_desc->buffer.length));
status = AE_AML_BUFFER_LIMIT;
goto cleanup;
}
@@ -600,6 +599,15 @@ acpi_ds_eval_data_object_operands(struct acpi_walk_state *walk_state,
*/
walk_state->operand_index = walk_state->num_operands;
+ /* Ignore if child is not valid */
+
+ if (!op->common.value.arg) {
+ ACPI_ERROR((AE_INFO,
+ "Dispatch: Missing child while executing TermArg for %X",
+ op->common.aml_opcode));
+ return_ACPI_STATUS(AE_OK);
+ }
+
status = acpi_ds_create_operand(walk_state, op->common.value.arg, 1);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
diff --git a/drivers/acpi/acpica/dspkginit.c b/drivers/acpi/acpica/dspkginit.c
new file mode 100644
index 000000000000..6d487edfe2de
--- /dev/null
+++ b/drivers/acpi/acpica/dspkginit.c
@@ -0,0 +1,496 @@
+/******************************************************************************
+ *
+ * Module Name: dspkginit - Completion of deferred package initialization
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2017, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "amlcode.h"
+#include "acdispat.h"
+#include "acinterp.h"
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("dspkginit")
+
+/* Local prototypes */
+static void
+acpi_ds_resolve_package_element(union acpi_operand_object **element);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_build_internal_package_obj
+ *
+ * PARAMETERS: walk_state - Current walk state
+ * op - Parser object to be translated
+ * element_count - Number of elements in the package - this is
+ * the num_elements argument to Package()
+ * obj_desc_ptr - Where the ACPI internal object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Translate a parser Op package object to the equivalent
+ * namespace object
+ *
+ * NOTE: The number of elements in the package will be always be the num_elements
+ * count, regardless of the number of elements in the package list. If
+ * num_elements is smaller, only that many package list elements are used.
+ * if num_elements is larger, the Package object is padded out with
+ * objects of type Uninitialized (as per ACPI spec.)
+ *
+ * Even though the ASL compilers do not allow num_elements to be smaller
+ * than the Package list length (for the fixed length package opcode), some
+ * BIOS code modifies the AML on the fly to adjust the num_elements, and
+ * this code compensates for that. This also provides compatibility with
+ * other AML interpreters.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op,
+ u32 element_count,
+ union acpi_operand_object **obj_desc_ptr)
+{
+ union acpi_parse_object *arg;
+ union acpi_parse_object *parent;
+ union acpi_operand_object *obj_desc = NULL;
+ acpi_status status = AE_OK;
+ u16 reference_count;
+ u32 index;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(ds_build_internal_package_obj);
+
+ /* Find the parent of a possibly nested package */
+
+ parent = op->common.parent;
+ while ((parent->common.aml_opcode == AML_PACKAGE_OP) ||
+ (parent->common.aml_opcode == AML_VARIABLE_PACKAGE_OP)) {
+ parent = parent->common.parent;
+ }
+
+ /*
+ * If we are evaluating a Named package object of the form:
+ * Name (xxxx, Package)
+ * the package object already exists, otherwise it must be created.
+ */
+ obj_desc = *obj_desc_ptr;
+ if (!obj_desc) {
+ obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE);
+ *obj_desc_ptr = obj_desc;
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ obj_desc->package.node = parent->common.node;
+ }
+
+ if (obj_desc->package.flags & AOPOBJ_DATA_VALID) { /* Just in case */
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /*
+ * Allocate the element array (array of pointers to the individual
+ * objects) based on the num_elements parameter. Add an extra pointer slot
+ * so that the list is always null terminated.
+ */
+ obj_desc->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size)
+ element_count +
+ 1) * sizeof(void *));
+
+ if (!obj_desc->package.elements) {
+ acpi_ut_delete_object_desc(obj_desc);
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ obj_desc->package.count = element_count;
+ arg = op->common.value.arg;
+ arg = arg->common.next;
+
+ if (arg) {
+ obj_desc->package.flags |= AOPOBJ_DATA_VALID;
+ }
+
+ /*
+ * Initialize the elements of the package, up to the num_elements count.
+ * Package is automatically padded with uninitialized (NULL) elements
+ * if num_elements is greater than the package list length. Likewise,
+ * Package is truncated if num_elements is less than the list length.
+ */
+ for (i = 0; arg && (i < element_count); i++) {
+ if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
+ if (arg->common.node->type == ACPI_TYPE_METHOD) {
+ /*
+ * A method reference "looks" to the parser to be a method
+ * invocation, so we special case it here
+ */
+ arg->common.aml_opcode = AML_INT_NAMEPATH_OP;
+ status =
+ acpi_ds_build_internal_object(walk_state,
+ arg,
+ &obj_desc->
+ package.
+ elements[i]);
+ } else {
+ /* This package element is already built, just get it */
+
+ obj_desc->package.elements[i] =
+ ACPI_CAST_PTR(union acpi_operand_object,
+ arg->common.node);
+ }
+ } else {
+ status =
+ acpi_ds_build_internal_object(walk_state, arg,
+ &obj_desc->package.
+ elements[i]);
+ if (status == AE_NOT_FOUND) {
+ ACPI_ERROR((AE_INFO, "%-48s",
+ "****DS namepath not found"));
+ }
+
+ /*
+ * Initialize this package element. This function handles the
+ * resolution of named references within the package.
+ */
+ acpi_ds_init_package_element(0,
+ obj_desc->package.
+ elements[i], NULL,
+ &obj_desc->package.
+ elements[i]);
+ }
+
+ if (*obj_desc_ptr) {
+
+ /* Existing package, get existing reference count */
+
+ reference_count =
+ (*obj_desc_ptr)->common.reference_count;
+ if (reference_count > 1) {
+
+ /* Make new element ref count match original ref count */
+ /* TBD: Probably need an acpi_ut_add_references function */
+
+ for (index = 0;
+ index < ((u32)reference_count - 1);
+ index++) {
+ acpi_ut_add_reference((obj_desc->
+ package.
+ elements[i]));
+ }
+ }
+ }
+
+ arg = arg->common.next;
+ }
+
+ /* Check for match between num_elements and actual length of package_list */
+
+ if (arg) {
+ /*
+ * num_elements was exhausted, but there are remaining elements in
+ * the package_list. Truncate the package to num_elements.
+ *
+ * Note: technically, this is an error, from ACPI spec: "It is an
+ * error for NumElements to be less than the number of elements in
+ * the PackageList". However, we just print a message and no
+ * exception is returned. This provides compatibility with other
+ * ACPI implementations. Some firmware implementations will alter
+ * the num_elements on the fly, possibly creating this type of
+ * ill-formed package object.
+ */
+ while (arg) {
+ /*
+ * We must delete any package elements that were created earlier
+ * and are not going to be used because of the package truncation.
+ */
+ if (arg->common.node) {
+ acpi_ut_remove_reference(ACPI_CAST_PTR
+ (union
+ acpi_operand_object,
+ arg->common.node));
+ arg->common.node = NULL;
+ }
+
+ /* Find out how many elements there really are */
+
+ i++;
+ arg = arg->common.next;
+ }
+
+ ACPI_INFO(("Actual Package length (%u) is larger than "
+ "NumElements field (%u), truncated",
+ i, element_count));
+ } else if (i < element_count) {
+ /*
+ * Arg list (elements) was exhausted, but we did not reach
+ * num_elements count.
+ *
+ * Note: this is not an error, the package is padded out
+ * with NULLs.
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Package List length (%u) smaller than NumElements "
+ "count (%u), padded with null elements\n",
+ i, element_count));
+ }
+
+ obj_desc->package.flags |= AOPOBJ_DATA_VALID;
+ op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_init_package_element
+ *
+ * PARAMETERS: acpi_pkg_callback
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Resolve a named reference element within a package object
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_init_package_element(u8 object_type,
+ union acpi_operand_object *source_object,
+ union acpi_generic_state *state, void *context)
+{
+ union acpi_operand_object **element_ptr;
+
+ if (!source_object) {
+ return (AE_OK);
+ }
+
+ /*
+ * The following code is a bit of a hack to workaround a (current)
+ * limitation of the acpi_pkg_callback interface. We need a pointer
+ * to the location within the element array because a new object
+ * may be created and stored there.
+ */
+ if (context) {
+
+ /* A direct call was made to this function */
+
+ element_ptr = (union acpi_operand_object **)context;
+ } else {
+ /* Call came from acpi_ut_walk_package_tree */
+
+ element_ptr = state->pkg.this_target_obj;
+ }
+
+ /* We are only interested in reference objects/elements */
+
+ if (source_object->common.type == ACPI_TYPE_LOCAL_REFERENCE) {
+
+ /* Attempt to resolve the (named) reference to a namespace node */
+
+ acpi_ds_resolve_package_element(element_ptr);
+ } else if (source_object->common.type == ACPI_TYPE_PACKAGE) {
+ source_object->package.flags |= AOPOBJ_DATA_VALID;
+ }
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_resolve_package_element
+ *
+ * PARAMETERS: element_ptr - Pointer to a reference object
+ *
+ * RETURN: Possible new element is stored to the indirect element_ptr
+ *
+ * DESCRIPTION: Resolve a package element that is a reference to a named
+ * object.
+ *
+ ******************************************************************************/
+
+static void
+acpi_ds_resolve_package_element(union acpi_operand_object **element_ptr)
+{
+ acpi_status status;
+ union acpi_generic_state scope_info;
+ union acpi_operand_object *element = *element_ptr;
+ struct acpi_namespace_node *resolved_node;
+ char *external_path = NULL;
+ acpi_object_type type;
+
+ ACPI_FUNCTION_TRACE(ds_resolve_package_element);
+
+ /* Check if reference element is already resolved */
+
+ if (element->reference.resolved) {
+ return_VOID;
+ }
+
+ /* Element must be a reference object of correct type */
+
+ scope_info.scope.node = element->reference.node; /* Prefix node */
+
+ status = acpi_ns_lookup(&scope_info, (char *)element->reference.aml, /* Pointer to AML path */
+ ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
+ ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE,
+ NULL, &resolved_node);
+ if (ACPI_FAILURE(status)) {
+ status = acpi_ns_externalize_name(ACPI_UINT32_MAX,
+ (char *)element->reference.
+ aml, NULL, &external_path);
+
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not find/resolve named package element: %s",
+ external_path));
+
+ ACPI_FREE(external_path);
+ *element_ptr = NULL;
+ return_VOID;
+ } else if (resolved_node->type == ACPI_TYPE_ANY) {
+
+ /* Named reference not resolved, return a NULL package element */
+
+ ACPI_ERROR((AE_INFO,
+ "Could not resolve named package element [%4.4s] in [%4.4s]",
+ resolved_node->name.ascii,
+ scope_info.scope.node->name.ascii));
+ *element_ptr = NULL;
+ return_VOID;
+ }
+#if 0
+ else if (resolved_node->flags & ANOBJ_TEMPORARY) {
+ /*
+ * A temporary node found here indicates that the reference is
+ * to a node that was created within this method. We are not
+ * going to allow it (especially if the package is returned
+ * from the method) -- the temporary node will be deleted out
+ * from under the method. (05/2017).
+ */
+ ACPI_ERROR((AE_INFO,
+ "Package element refers to a temporary name [%4.4s], "
+ "inserting a NULL element",
+ resolved_node->name.ascii));
+ *element_ptr = NULL;
+ return_VOID;
+ }
+#endif
+
+ /*
+ * Special handling for Alias objects. We need resolved_node to point
+ * to the Alias target. This effectively "resolves" the alias.
+ */
+ if (resolved_node->type == ACPI_TYPE_LOCAL_ALIAS) {
+ resolved_node = ACPI_CAST_PTR(struct acpi_namespace_node,
+ resolved_node->object);
+ }
+
+ /* Update the reference object */
+
+ element->reference.resolved = TRUE;
+ element->reference.node = resolved_node;
+ type = element->reference.node->type;
+
+ /*
+ * Attempt to resolve the node to a value before we insert it into
+ * the package. If this is a reference to a common data type,
+ * resolve it immediately. According to the ACPI spec, package
+ * elements can only be "data objects" or method references.
+ * Attempt to resolve to an Integer, Buffer, String or Package.
+ * If cannot, return the named reference (for things like Devices,
+ * Methods, etc.) Buffer Fields and Fields will resolve to simple
+ * objects (int/buf/str/pkg).
+ *
+ * NOTE: References to things like Devices, Methods, Mutexes, etc.
+ * will remain as named references. This behavior is not described
+ * in the ACPI spec, but it appears to be an oversight.
+ */
+ status = acpi_ex_resolve_node_to_value(&resolved_node, NULL);
+ if (ACPI_FAILURE(status)) {
+ return_VOID;
+ }
+#if 0
+/* TBD - alias support */
+ /*
+ * Special handling for Alias objects. We need to setup the type
+ * and the Op->Common.Node to point to the Alias target. Note,
+ * Alias has at most one level of indirection internally.
+ */
+ type = op->common.node->type;
+ if (type == ACPI_TYPE_LOCAL_ALIAS) {
+ type = obj_desc->common.type;
+ op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node,
+ op->common.node->object);
+ }
+#endif
+
+ switch (type) {
+ /*
+ * These object types are a result of named references, so we will
+ * leave them as reference objects. In other words, these types
+ * have no intrinsic "value".
+ */
+ case ACPI_TYPE_DEVICE:
+ case ACPI_TYPE_THERMAL:
+
+ /* TBD: This may not be necesssary */
+
+ acpi_ut_add_reference(resolved_node->object);
+ break;
+
+ case ACPI_TYPE_MUTEX:
+ case ACPI_TYPE_METHOD:
+ case ACPI_TYPE_POWER:
+ case ACPI_TYPE_PROCESSOR:
+ case ACPI_TYPE_EVENT:
+ case ACPI_TYPE_REGION:
+
+ break;
+
+ default:
+ /*
+ * For all other types - the node was resolved to an actual
+ * operand object with a value, return the object
+ */
+ *element_ptr = (union acpi_operand_object *)resolved_node;
+ break;
+ }
+
+ return_VOID;
+}
diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c
index 406edec20de7..0dabd9b95684 100644
--- a/drivers/acpi/acpica/dsutils.c
+++ b/drivers/acpi/acpica/dsutils.c
@@ -633,15 +633,6 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
if ((op_info->flags & AML_HAS_RETVAL) ||
(arg->common.flags & ACPI_PARSEOP_IN_STACK)) {
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Argument previously created, already stacked\n"));
-
- acpi_db_display_argument_object(walk_state->
- operands[walk_state->
- num_operands -
- 1],
- walk_state);
-
/*
* Use value that was already previously returned
* by the evaluation of this argument
diff --git a/drivers/acpi/acpica/dswexec.c b/drivers/acpi/acpica/dswexec.c
index a2ff8ad70d58..20d7744b06ae 100644
--- a/drivers/acpi/acpica/dswexec.c
+++ b/drivers/acpi/acpica/dswexec.c
@@ -576,8 +576,8 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
case AML_TYPE_CREATE_OBJECT:
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Executing CreateObject (Buffer/Package) Op=%p\n",
- op));
+ "Executing CreateObject (Buffer/Package) Op=%p AMLPtr=%p\n",
+ op, op->named.data));
switch (op->common.parent->common.aml_opcode) {
case AML_NAME_OP:
diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c
index cafb3ab567ab..eaa859a89702 100644
--- a/drivers/acpi/acpica/dswload.c
+++ b/drivers/acpi/acpica/dswload.c
@@ -397,7 +397,7 @@ acpi_ds_load1_begin_op(struct acpi_walk_state *walk_state,
/* Initialize the op */
#if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY))
- op->named.path = ACPI_CAST_PTR(u8, path);
+ op->named.path = path;
#endif
if (node) {
@@ -434,6 +434,10 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
acpi_object_type object_type;
acpi_status status = AE_OK;
+#ifdef ACPI_ASL_COMPILER
+ u8 param_count;
+#endif
+
ACPI_FUNCTION_TRACE(ds_load1_end_op);
op = walk_state->op;
@@ -514,6 +518,38 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
}
}
}
+#ifdef ACPI_ASL_COMPILER
+ /*
+ * For external opcode, get the object type from the argument and
+ * get the parameter count from the argument's next.
+ */
+ if (acpi_gbl_disasm_flag &&
+ op->common.node && op->common.aml_opcode == AML_EXTERNAL_OP) {
+ /*
+ * Note, if this external is not a method
+ * Op->Common.Value.Arg->Common.Next->Common.Value.Integer == 0
+ * Therefore, param_count will be 0.
+ */
+ param_count =
+ (u8)op->common.value.arg->common.next->common.value.integer;
+ object_type = (u8)op->common.value.arg->common.value.integer;
+ op->common.node->flags |= ANOBJ_IS_EXTERNAL;
+ op->common.node->type = (u8)object_type;
+
+ acpi_dm_create_subobject_for_external((u8)object_type,
+ &op->common.node,
+ param_count);
+
+ /*
+ * Add the external to the external list because we may be
+ * emitting code based off of the items within the external list.
+ */
+ acpi_dm_add_op_to_external_list(op, op->named.path,
+ (u8)object_type, param_count,
+ ACPI_EXT_ORIGIN_FROM_OPCODE |
+ ACPI_EXT_RESOLVED_REFERENCE);
+ }
+#endif
/*
* If we are executing a method, do not create any namespace objects
@@ -563,7 +599,9 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
/* Pop the scope stack (only if loading a table) */
- if (!walk_state->method_node && acpi_ns_opens_scope(object_type)) {
+ if (!walk_state->method_node &&
+ op->common.aml_opcode != AML_EXTERNAL_OP &&
+ acpi_ns_opens_scope(object_type)) {
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
"(%s): Popping scope for Op %p\n",
acpi_ut_get_type_name(object_type), op));
diff --git a/drivers/acpi/acpica/dswload2.c b/drivers/acpi/acpica/dswload2.c
index 8d510c7e20c8..aad83ef5a4ec 100644
--- a/drivers/acpi/acpica/dswload2.c
+++ b/drivers/acpi/acpica/dswload2.c
@@ -310,6 +310,22 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
flags |= ACPI_NS_TEMPORARY;
}
}
+#ifdef ACPI_ASL_COMPILER
+
+ /*
+ * Do not open a scope for AML_EXTERNAL_OP
+ * acpi_ns_lookup can open a new scope based on the object type
+ * of this op. AML_EXTERNAL_OP is a declaration rather than a
+ * definition. In the case that this external is a method object,
+ * acpi_ns_lookup will open a new scope. However, an AML_EXTERNAL_OP
+ * associated with the ACPI_TYPE_METHOD is a declaration, rather than
+ * a definition. Flags is set to avoid opening a scope for any
+ * AML_EXTERNAL_OP.
+ */
+ if (walk_state->opcode == AML_EXTERNAL_OP) {
+ flags |= ACPI_NS_DONT_OPEN_SCOPE;
+ }
+#endif
/* Add new entry or lookup existing entry */
diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c
index 9c941947a063..3a3cb8624f41 100644
--- a/drivers/acpi/acpica/evgpeblk.c
+++ b/drivers/acpi/acpica/evgpeblk.c
@@ -440,9 +440,11 @@ acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
void *ignored)
{
acpi_status status;
+ acpi_event_status event_status;
struct acpi_gpe_event_info *gpe_event_info;
u32 gpe_enabled_count;
u32 gpe_index;
+ u32 gpe_number;
u32 i;
u32 j;
@@ -470,30 +472,40 @@ acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
gpe_index = (i * ACPI_GPE_REGISTER_WIDTH) + j;
gpe_event_info = &gpe_block->event_info[gpe_index];
+ gpe_number = gpe_block->block_base_number + gpe_index;
/*
* Ignore GPEs that have no corresponding _Lxx/_Exx method
- * and GPEs that are used to wake the system
+ * and GPEs that are used for wakeup
*/
- if ((ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) ==
- ACPI_GPE_DISPATCH_NONE)
- || (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) ==
- ACPI_GPE_DISPATCH_HANDLER)
- || (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) ==
- ACPI_GPE_DISPATCH_RAW_HANDLER)
+ if ((ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) !=
+ ACPI_GPE_DISPATCH_METHOD)
|| (gpe_event_info->flags & ACPI_GPE_CAN_WAKE)) {
continue;
}
+ event_status = 0;
+ (void)acpi_hw_get_gpe_status(gpe_event_info,
+ &event_status);
+
status = acpi_ev_add_gpe_reference(gpe_event_info);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status,
"Could not enable GPE 0x%02X",
- gpe_index +
- gpe_block->block_base_number));
+ gpe_number));
continue;
}
+ gpe_event_info->flags |= ACPI_GPE_AUTO_ENABLED;
+
+ if (event_status & ACPI_EVENT_FLAG_STATUS_SET) {
+ ACPI_INFO(("GPE 0x%02X active on init",
+ gpe_number));
+ (void)acpi_ev_gpe_dispatch(gpe_block->node,
+ gpe_event_info,
+ gpe_number);
+ }
+
gpe_enabled_count++;
}
}
diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c
index 82e8971f23a4..c773ac4892cb 100644
--- a/drivers/acpi/acpica/evxfevnt.c
+++ b/drivers/acpi/acpica/evxfevnt.c
@@ -180,6 +180,12 @@ acpi_status acpi_enable_event(u32 event, u32 flags)
ACPI_FUNCTION_TRACE(acpi_enable_event);
+ /* If Hardware Reduced flag is set, there are no fixed events */
+
+ if (acpi_gbl_reduced_hardware) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
/* Decode the Fixed Event */
if (event > ACPI_EVENT_MAX) {
@@ -237,6 +243,12 @@ acpi_status acpi_disable_event(u32 event, u32 flags)
ACPI_FUNCTION_TRACE(acpi_disable_event);
+ /* If Hardware Reduced flag is set, there are no fixed events */
+
+ if (acpi_gbl_reduced_hardware) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
/* Decode the Fixed Event */
if (event > ACPI_EVENT_MAX) {
@@ -290,6 +302,12 @@ acpi_status acpi_clear_event(u32 event)
ACPI_FUNCTION_TRACE(acpi_clear_event);
+ /* If Hardware Reduced flag is set, there are no fixed events */
+
+ if (acpi_gbl_reduced_hardware) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
/* Decode the Fixed Event */
if (event > ACPI_EVENT_MAX) {
diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c
index 57718a3e029a..67c7c4ce276c 100644
--- a/drivers/acpi/acpica/evxfgpe.c
+++ b/drivers/acpi/acpica/evxfgpe.c
@@ -435,6 +435,14 @@ acpi_setup_gpe_for_wake(acpi_handle wake_device,
*/
gpe_event_info->flags =
(ACPI_GPE_DISPATCH_NOTIFY | ACPI_GPE_LEVEL_TRIGGERED);
+ } else if (gpe_event_info->flags & ACPI_GPE_AUTO_ENABLED) {
+ /*
+ * A reference to this GPE has been added during the GPE block
+ * initialization, so drop it now to prevent the GPE from being
+ * permanently enabled and clear its ACPI_GPE_AUTO_ENABLED flag.
+ */
+ (void)acpi_ev_remove_gpe_reference(gpe_event_info);
+ gpe_event_info->flags &= ~ACPI_GPE_AUTO_ENABLED;
}
/*
diff --git a/drivers/acpi/acpica/excreate.c b/drivers/acpi/acpica/excreate.c
index d43d7da4c734..b8adb11f1b07 100644
--- a/drivers/acpi/acpica/excreate.c
+++ b/drivers/acpi/acpica/excreate.c
@@ -87,68 +87,40 @@ acpi_status acpi_ex_create_alias(struct acpi_walk_state *walk_state)
target_node->object);
}
- /*
- * For objects that can never change (i.e., the NS node will
- * permanently point to the same object), we can simply attach
- * the object to the new NS node. For other objects (such as
- * Integers, buffers, etc.), we have to point the Alias node
- * to the original Node.
- */
- switch (target_node->type) {
+ /* Ensure that the target node is valid */
- /* For these types, the sub-object can change dynamically via a Store */
+ if (!target_node) {
+ return_ACPI_STATUS(AE_NULL_OBJECT);
+ }
- case ACPI_TYPE_INTEGER:
- case ACPI_TYPE_STRING:
- case ACPI_TYPE_BUFFER:
- case ACPI_TYPE_PACKAGE:
- case ACPI_TYPE_BUFFER_FIELD:
- /*
- * These types open a new scope, so we need the NS node in order to access
- * any children.
- */
- case ACPI_TYPE_DEVICE:
- case ACPI_TYPE_POWER:
- case ACPI_TYPE_PROCESSOR:
- case ACPI_TYPE_THERMAL:
- case ACPI_TYPE_LOCAL_SCOPE:
- /*
- * The new alias has the type ALIAS and points to the original
- * NS node, not the object itself.
- */
- alias_node->type = ACPI_TYPE_LOCAL_ALIAS;
- alias_node->object =
- ACPI_CAST_PTR(union acpi_operand_object, target_node);
- break;
+ /* Construct the alias object (a namespace node) */
+ switch (target_node->type) {
case ACPI_TYPE_METHOD:
/*
- * Control method aliases need to be differentiated
+ * Control method aliases need to be differentiated with
+ * a special type
*/
alias_node->type = ACPI_TYPE_LOCAL_METHOD_ALIAS;
- alias_node->object =
- ACPI_CAST_PTR(union acpi_operand_object, target_node);
break;
default:
-
- /* Attach the original source object to the new Alias Node */
-
/*
- * The new alias assumes the type of the target, and it points
- * to the same object. The reference count of the object has an
- * additional reference to prevent deletion out from under either the
- * target node or the alias Node
+ * All other object types.
+ *
+ * The new alias has the type ALIAS and points to the original
+ * NS node, not the object itself.
*/
- status = acpi_ns_attach_object(alias_node,
- acpi_ns_get_attached_object
- (target_node),
- target_node->type);
+ alias_node->type = ACPI_TYPE_LOCAL_ALIAS;
+ alias_node->object =
+ ACPI_CAST_PTR(union acpi_operand_object, target_node);
break;
}
/* Since both operands are Nodes, we don't need to delete them */
+ alias_node->object =
+ ACPI_CAST_PTR(union acpi_operand_object, target_node);
return_ACPI_STATUS(status);
}
diff --git a/drivers/acpi/acpica/exdebug.c b/drivers/acpi/acpica/exdebug.c
index ec614f5a3bcb..a8191d2ca5e3 100644
--- a/drivers/acpi/acpica/exdebug.c
+++ b/drivers/acpi/acpica/exdebug.c
@@ -117,10 +117,10 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
timer = ((u32)acpi_os_get_timer() / 10);
timer &= 0x03FFFFFF;
- acpi_os_printf("[ACPI Debug T=0x%8.8X] %*s", timer,
+ acpi_os_printf("ACPI Debug: T=0x%8.8X %*s", timer,
level, " ");
} else {
- acpi_os_printf("[ACPI Debug] %*s", level, " ");
+ acpi_os_printf("ACPI Debug: %*s", level, " ");
}
}
diff --git a/drivers/acpi/acpica/exdump.c b/drivers/acpi/acpica/exdump.c
index 970dc6c53994..83398dc4b7c2 100644
--- a/drivers/acpi/acpica/exdump.c
+++ b/drivers/acpi/acpica/exdump.c
@@ -102,7 +102,7 @@ static struct acpi_exdump_info acpi_ex_dump_package[6] = {
{ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_package), NULL},
{ACPI_EXD_NODE, ACPI_EXD_OFFSET(package.node), "Parent Node"},
{ACPI_EXD_UINT8, ACPI_EXD_OFFSET(package.flags), "Flags"},
- {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(package.count), "Elements"},
+ {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(package.count), "Element Count"},
{ACPI_EXD_POINTER, ACPI_EXD_OFFSET(package.elements), "Element List"},
{ACPI_EXD_PACKAGE, 0, NULL}
};
@@ -384,6 +384,10 @@ acpi_ex_dump_object(union acpi_operand_object *obj_desc,
count = info->offset;
while (count) {
+ if (!obj_desc) {
+ return;
+ }
+
target = ACPI_ADD_PTR(u8, obj_desc, info->offset);
name = info->name;
@@ -469,9 +473,9 @@ acpi_ex_dump_object(union acpi_operand_object *obj_desc,
start = *ACPI_CAST_PTR(void *, target);
next = start;
- acpi_os_printf("%20s : %p", name, next);
+ acpi_os_printf("%20s : %p ", name, next);
if (next) {
- acpi_os_printf("(%s %2.2X)",
+ acpi_os_printf("%s (Type %2.2X)",
acpi_ut_get_object_type_name
(next), next->common.type);
@@ -493,6 +497,8 @@ acpi_ex_dump_object(union acpi_operand_object *obj_desc,
break;
}
}
+ } else {
+ acpi_os_printf("- No attached objects");
}
acpi_os_printf("\n");
@@ -645,10 +651,12 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth)
/* obj_desc is a valid object */
if (depth > 0) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%*s[%u] %p ",
- depth, " ", depth, obj_desc));
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%*s[%u] %p Refs=%u ",
+ depth, " ", depth, obj_desc,
+ obj_desc->common.reference_count));
} else {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%p ", obj_desc));
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%p Refs=%u ",
+ obj_desc, obj_desc->common.reference_count));
}
/* Decode object type */
@@ -690,8 +698,11 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth)
case ACPI_REFCLASS_NAME:
- acpi_os_printf("- [%4.4s]\n",
- obj_desc->reference.node->name.ascii);
+ acpi_ut_repair_name(obj_desc->reference.node->name.
+ ascii);
+ acpi_os_printf("- [%4.4s] (Node %p)\n",
+ obj_desc->reference.node->name.ascii,
+ obj_desc->reference.node);
break;
case ACPI_REFCLASS_ARG:
@@ -999,9 +1010,15 @@ static void acpi_ex_dump_reference_obj(union acpi_operand_object *obj_desc)
status = acpi_ns_handle_to_pathname(obj_desc->reference.node,
&ret_buf, TRUE);
if (ACPI_FAILURE(status)) {
- acpi_os_printf(" Could not convert name to pathname\n");
+ acpi_os_printf
+ (" Could not convert name to pathname: %s\n",
+ acpi_format_exception(status));
} else {
- acpi_os_printf("%s\n", (char *)ret_buf.pointer);
+ acpi_os_printf("%s: %s\n",
+ acpi_ut_get_type_name(obj_desc->
+ reference.node->
+ type),
+ (char *)ret_buf.pointer);
ACPI_FREE(ret_buf.pointer);
}
} else if (obj_desc->reference.object) {
@@ -1111,15 +1128,16 @@ acpi_ex_dump_package_obj(union acpi_operand_object *obj_desc,
case ACPI_TYPE_LOCAL_REFERENCE:
- acpi_os_printf("[Object Reference] Type [%s] %2.2X",
- acpi_ut_get_reference_name(obj_desc),
- obj_desc->reference.class);
+ acpi_os_printf("[Object Reference] Class [%s]",
+ acpi_ut_get_reference_name(obj_desc));
acpi_ex_dump_reference_obj(obj_desc);
break;
default:
- acpi_os_printf("[Unknown Type] %X\n", obj_desc->common.type);
+ acpi_os_printf("[%s] Type: %2.2X\n",
+ acpi_ut_get_type_name(obj_desc->common.type),
+ obj_desc->common.type);
break;
}
}
@@ -1157,11 +1175,17 @@ acpi_ex_dump_object_descriptor(union acpi_operand_object *obj_desc, u32 flags)
acpi_ex_dump_namespace_node((struct acpi_namespace_node *)
obj_desc, flags);
- acpi_os_printf("\nAttached Object (%p):\n",
- ((struct acpi_namespace_node *)obj_desc)->
- object);
-
obj_desc = ((struct acpi_namespace_node *)obj_desc)->object;
+ if (!obj_desc) {
+ return_VOID;
+ }
+
+ acpi_os_printf("\nAttached Object %p", obj_desc);
+ if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_NAMED) {
+ acpi_os_printf(" - Namespace Node");
+ }
+
+ acpi_os_printf(":\n");
goto dump_object;
}
@@ -1181,6 +1205,10 @@ acpi_ex_dump_object_descriptor(union acpi_operand_object *obj_desc, u32 flags)
dump_object:
+ if (!obj_desc) {
+ return_VOID;
+ }
+
/* Common Fields */
acpi_ex_dump_object(obj_desc, acpi_ex_dump_common);
diff --git a/drivers/acpi/acpica/exmisc.c b/drivers/acpi/acpica/exmisc.c
index f222a80ca38e..1e7649ce0a7b 100644
--- a/drivers/acpi/acpica/exmisc.c
+++ b/drivers/acpi/acpica/exmisc.c
@@ -265,6 +265,8 @@ acpi_ex_do_logical_numeric_op(u16 opcode,
default:
+ ACPI_ERROR((AE_INFO,
+ "Invalid numeric logical opcode: %X", opcode));
status = AE_AML_INTERNAL;
break;
}
@@ -345,6 +347,9 @@ acpi_ex_do_logical_op(u16 opcode,
default:
+ ACPI_ERROR((AE_INFO,
+ "Invalid object type for logical operator: %X",
+ operand0->common.type));
status = AE_AML_INTERNAL;
break;
}
@@ -388,6 +393,8 @@ acpi_ex_do_logical_op(u16 opcode,
default:
+ ACPI_ERROR((AE_INFO,
+ "Invalid comparison opcode: %X", opcode));
status = AE_AML_INTERNAL;
break;
}
@@ -456,6 +463,8 @@ acpi_ex_do_logical_op(u16 opcode,
default:
+ ACPI_ERROR((AE_INFO,
+ "Invalid comparison opcode: %X", opcode));
status = AE_AML_INTERNAL;
break;
}
diff --git a/drivers/acpi/acpica/exoparg1.c b/drivers/acpi/acpica/exoparg1.c
index e327349675cd..f787651348c1 100644
--- a/drivers/acpi/acpica/exoparg1.c
+++ b/drivers/acpi/acpica/exoparg1.c
@@ -921,13 +921,26 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
* This is a deref_of (object_reference)
* Get the actual object from the Node (This is the dereference).
* This case may only happen when a local_x or arg_x is
- * dereferenced above.
+ * dereferenced above, or for references to device and
+ * thermal objects.
*/
- return_desc = acpi_ns_get_attached_object((struct
- acpi_namespace_node
- *)
- operand[0]);
- acpi_ut_add_reference(return_desc);
+ switch (((struct acpi_namespace_node *)operand[0])->
+ type) {
+ case ACPI_TYPE_DEVICE:
+ case ACPI_TYPE_THERMAL:
+
+ /* These types have no node subobject, return the NS node */
+
+ return_desc = operand[0];
+ break;
+
+ default:
+ /* For most types, get the object attached to the node */
+
+ return_desc = acpi_ns_get_attached_object((struct acpi_namespace_node *)operand[0]);
+ acpi_ut_add_reference(return_desc);
+ break;
+ }
} else {
/*
* This must be a reference object produced by either the
diff --git a/drivers/acpi/acpica/exoparg2.c b/drivers/acpi/acpica/exoparg2.c
index eecb3bff7fd7..57980b7d3594 100644
--- a/drivers/acpi/acpica/exoparg2.c
+++ b/drivers/acpi/acpica/exoparg2.c
@@ -414,6 +414,9 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
default:
+ ACPI_ERROR((AE_INFO,
+ "Invalid object type: %X",
+ (operand[0])->common.type));
status = AE_AML_INTERNAL;
goto cleanup;
}
diff --git a/drivers/acpi/acpica/exresolv.c b/drivers/acpi/acpica/exresolv.c
index aa8c6fd74cc3..5e1854ea85f6 100644
--- a/drivers/acpi/acpica/exresolv.c
+++ b/drivers/acpi/acpica/exresolv.c
@@ -368,11 +368,24 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state,
*)obj_desc);
}
- if (!obj_desc) {
- ACPI_ERROR((AE_INFO,
- "[%4.4s] Node is unresolved or uninitialized",
- acpi_ut_get_node_name(node)));
- return_ACPI_STATUS(AE_AML_UNINITIALIZED_NODE);
+ switch (type) {
+ case ACPI_TYPE_DEVICE:
+ case ACPI_TYPE_THERMAL:
+
+ /* These types have no attached subobject */
+ break;
+
+ default:
+
+ /* All other types require a subobject */
+
+ if (!obj_desc) {
+ ACPI_ERROR((AE_INFO,
+ "[%4.4s] Node is unresolved or uninitialized",
+ acpi_ut_get_node_name(node)));
+ return_ACPI_STATUS(AE_AML_UNINITIALIZED_NODE);
+ }
+ break;
}
break;
diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c
index de74a4c25085..acb417b58bbb 100644
--- a/drivers/acpi/acpica/hwregs.c
+++ b/drivers/acpi/acpica/hwregs.c
@@ -107,7 +107,7 @@ acpi_hw_get_access_bit_width(u64 address,
ACPI_IS_ALIGNED(reg->bit_width, 8)) {
access_bit_width = reg->bit_width;
} else if (reg->access_width) {
- access_bit_width = (1 << (reg->access_width + 2));
+ access_bit_width = ACPI_ACCESS_BIT_WIDTH(reg->access_width);
} else {
access_bit_width =
ACPI_ROUND_UP_POWER_OF_TWO_8(reg->bit_offset +
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
index 5733b1167e46..e5c095ca6083 100644
--- a/drivers/acpi/acpica/hwxfsleep.c
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -70,11 +70,18 @@ static acpi_status acpi_hw_sleep_dispatch(u8 sleep_state, u32 function_id);
/* Legacy functions are optional, based upon ACPI_REDUCED_HARDWARE */
static struct acpi_sleep_functions acpi_sleep_dispatch[] = {
- {ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_sleep),
- acpi_hw_extended_sleep},
- {ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake_prep),
- acpi_hw_extended_wake_prep},
- {ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake), acpi_hw_extended_wake}
+ {ACPI_STRUCT_INIT(legacy_function,
+ ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_sleep)),
+ ACPI_STRUCT_INIT(extended_function,
+ acpi_hw_extended_sleep)},
+ {ACPI_STRUCT_INIT(legacy_function,
+ ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake_prep)),
+ ACPI_STRUCT_INIT(extended_function,
+ acpi_hw_extended_wake_prep)},
+ {ACPI_STRUCT_INIT(legacy_function,
+ ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake)),
+ ACPI_STRUCT_INIT(extended_function,
+ acpi_hw_extended_wake)}
};
/*
diff --git a/drivers/acpi/acpica/nsaccess.c b/drivers/acpi/acpica/nsaccess.c
index fb265b5737de..f2733f51ca8d 100644
--- a/drivers/acpi/acpica/nsaccess.c
+++ b/drivers/acpi/acpica/nsaccess.c
@@ -47,6 +47,10 @@
#include "acnamesp.h"
#include "acdispat.h"
+#ifdef ACPI_ASL_COMPILER
+#include "acdisasm.h"
+#endif
+
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsaccess")
@@ -288,6 +292,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
{
acpi_status status;
char *path = pathname;
+ char *external_path;
struct acpi_namespace_node *prefix_node;
struct acpi_namespace_node *current_node = NULL;
struct acpi_namespace_node *this_node = NULL;
@@ -423,13 +428,22 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
num_carats++;
this_node = this_node->parent;
if (!this_node) {
+ /*
+ * Current scope has no parent scope. Externalize
+ * the internal path for error message.
+ */
+ status =
+ acpi_ns_externalize_name
+ (ACPI_UINT32_MAX, pathname, NULL,
+ &external_path);
+ if (ACPI_SUCCESS(status)) {
+ ACPI_ERROR((AE_INFO,
+ "%s: Path has too many parent prefixes (^)",
+ external_path));
+
+ ACPI_FREE(external_path);
+ }
- /* Current scope has no parent scope */
-
- ACPI_ERROR((AE_INFO,
- "%s: Path has too many parent prefixes (^) "
- "- reached beyond root node",
- pathname));
return_ACPI_STATUS(AE_NOT_FOUND);
}
}
@@ -580,6 +594,29 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
(char *)&current_node->name,
current_node));
}
+#ifdef ACPI_ASL_COMPILER
+ /*
+ * If this ACPI name already exists within the namespace as an
+ * external declaration, then mark the external as a conflicting
+ * declaration and proceed to process the current node as if it did
+ * not exist in the namespace. If this node is not processed as
+ * normal, then it could cause improper namespace resolution
+ * by failing to open a new scope.
+ */
+ if (acpi_gbl_disasm_flag &&
+ (status == AE_ALREADY_EXISTS) &&
+ ((this_node->flags & ANOBJ_IS_EXTERNAL) ||
+ (walk_state
+ && walk_state->opcode == AML_EXTERNAL_OP))) {
+ this_node->flags &= ~ANOBJ_IS_EXTERNAL;
+ this_node->type = (u8)this_search_type;
+ if (walk_state->opcode != AML_EXTERNAL_OP) {
+ acpi_dm_mark_external_conflict
+ (this_node);
+ }
+ break;
+ }
+#endif
*return_node = this_node;
return_ACPI_STATUS(status);
@@ -607,6 +644,12 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
this_node->object;
}
}
+#ifdef ACPI_ASL_COMPILER
+ if (!acpi_gbl_disasm_flag &&
+ (this_node->flags & ANOBJ_IS_EXTERNAL)) {
+ this_node->flags |= IMPLICIT_EXTERNAL;
+ }
+#endif
}
/* Special handling for the last segment (num_segments == 0) */
diff --git a/drivers/acpi/acpica/nsarguments.c b/drivers/acpi/acpica/nsarguments.c
index 9095d51f6b37..67b7370dcae5 100644
--- a/drivers/acpi/acpica/nsarguments.c
+++ b/drivers/acpi/acpica/nsarguments.c
@@ -69,9 +69,14 @@ void acpi_ns_check_argument_types(struct acpi_evaluate_info *info)
u8 user_arg_type;
u32 i;
- /* If not a predefined name, cannot typecheck args */
-
- if (!info->predefined) {
+ /*
+ * If not a predefined name, cannot typecheck args, because
+ * we have no idea what argument types are expected.
+ * Also, ignore typecheck if warnings/errors if this method
+ * has already been evaluated at least once -- in order
+ * to suppress repetitive messages.
+ */
+ if (!info->predefined || (info->node->flags & ANOBJ_EVALUATED)) {
return;
}
@@ -93,6 +98,10 @@ void acpi_ns_check_argument_types(struct acpi_evaluate_info *info)
acpi_ut_get_type_name
(user_arg_type),
acpi_ut_get_type_name(arg_type)));
+
+ /* Prevent any additional typechecking for this method */
+
+ info->node->flags |= ANOBJ_EVALUATED;
}
}
}
@@ -121,7 +130,7 @@ acpi_ns_check_acpi_compliance(char *pathname,
u32 aml_param_count;
u32 required_param_count;
- if (!predefined) {
+ if (!predefined || (node->flags & ANOBJ_EVALUATED)) {
return;
}
@@ -215,6 +224,10 @@ acpi_ns_check_argument_count(char *pathname,
u32 aml_param_count;
u32 required_param_count;
+ if (node->flags & ANOBJ_EVALUATED) {
+ return;
+ }
+
if (!predefined) {
/*
* Not a predefined name. Check the incoming user argument count
diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c
index ce33e7297ea7..9c6297949712 100644
--- a/drivers/acpi/acpica/nsinit.c
+++ b/drivers/acpi/acpica/nsinit.c
@@ -396,6 +396,20 @@ acpi_ns_init_one_object(acpi_handle obj_handle,
info->package_init++;
status = acpi_ds_get_package_arguments(obj_desc);
+ if (ACPI_FAILURE(status)) {
+ break;
+ }
+
+ /*
+ * Resolve all named references in package objects (and all
+ * sub-packages). This action has been deferred until the entire
+ * namespace has been loaded, in order to support external and
+ * forward references from individual package elements (05/2017).
+ */
+ status = acpi_ut_walk_package_tree(obj_desc, NULL,
+ acpi_ds_init_package_element,
+ NULL);
+ obj_desc->package.flags |= AOPOBJ_DATA_VALID;
break;
default:
diff --git a/drivers/acpi/acpica/nsnames.c b/drivers/acpi/acpica/nsnames.c
index 3db9ca25a620..a410760a0308 100644
--- a/drivers/acpi/acpica/nsnames.c
+++ b/drivers/acpi/acpica/nsnames.c
@@ -89,7 +89,14 @@ acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node)
{
acpi_size size;
- ACPI_FUNCTION_ENTRY();
+ /* Validate the Node */
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
+ ACPI_ERROR((AE_INFO,
+ "Invalid/cached reference target node: %p, descriptor type %d",
+ node, ACPI_GET_DESCRIPTOR_TYPE(node)));
+ return (0);
+ }
size = acpi_ns_build_normalized_path(node, NULL, 0, FALSE);
return (size);
@@ -190,9 +197,6 @@ acpi_ns_handle_to_pathname(acpi_handle target_handle,
(void)acpi_ns_build_normalized_path(node, buffer->pointer,
required_size, no_trailing);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%s [%X]\n",
(char *)buffer->pointer, (u32) required_size));
diff --git a/drivers/acpi/acpica/nsprepkg.c b/drivers/acpi/acpica/nsprepkg.c
index 4954cb6c9090..a8ea8fb1d299 100644
--- a/drivers/acpi/acpica/nsprepkg.c
+++ b/drivers/acpi/acpica/nsprepkg.c
@@ -614,6 +614,8 @@ acpi_ns_check_package_list(struct acpi_evaluate_info *info,
default: /* Should not get here, type was validated by caller */
+ ACPI_ERROR((AE_INFO, "Invalid Package type: %X",
+ package->ret_info.type));
return (AE_AML_INTERNAL);
}
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index 2fe87d0dd9d5..b43fe5fce64b 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -89,7 +89,7 @@ acpi_ns_print_node_pathname(struct acpi_namespace_node *node,
acpi_os_printf("%s ", message);
}
- acpi_os_printf("[%s] (Node %p)", (char *)buffer.pointer, node);
+ acpi_os_printf("%s", (char *)buffer.pointer);
ACPI_FREE(buffer.pointer);
}
}
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index c944ff5c9c3d..783f4c838aee 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -85,6 +85,8 @@ acpi_evaluate_object_typed(acpi_handle handle,
{
acpi_status status;
u8 free_buffer_on_error = FALSE;
+ acpi_handle target_handle;
+ char *full_pathname;
ACPI_FUNCTION_TRACE(acpi_evaluate_object_typed);
@@ -98,38 +100,55 @@ acpi_evaluate_object_typed(acpi_handle handle,
free_buffer_on_error = TRUE;
}
+ if (pathname) {
+ status = acpi_get_handle(handle, pathname, &target_handle);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ } else {
+ target_handle = handle;
+ }
+
+ full_pathname = acpi_ns_get_external_pathname(target_handle);
+ if (!full_pathname) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
/* Evaluate the object */
- status = acpi_evaluate_object(handle, pathname,
- external_params, return_buffer);
+ status = acpi_evaluate_object(target_handle, NULL, external_params,
+ return_buffer);
if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
+ goto exit;
}
- /* Type ANY means "don't care" */
+ /* Type ANY means "don't care about return value type" */
if (return_type == ACPI_TYPE_ANY) {
- return_ACPI_STATUS(AE_OK);
+ goto exit;
}
if (return_buffer->length == 0) {
/* Error because caller specifically asked for a return value */
- ACPI_ERROR((AE_INFO, "No return value"));
- return_ACPI_STATUS(AE_NULL_OBJECT);
+ ACPI_ERROR((AE_INFO, "%s did not return any object",
+ full_pathname));
+ status = AE_NULL_OBJECT;
+ goto exit;
}
/* Examine the object type returned from evaluate_object */
if (((union acpi_object *)return_buffer->pointer)->type == return_type) {
- return_ACPI_STATUS(AE_OK);
+ goto exit;
}
/* Return object type does not match requested type */
ACPI_ERROR((AE_INFO,
- "Incorrect return type [%s] requested [%s]",
+ "Incorrect return type from %s - received [%s], requested [%s]",
+ full_pathname,
acpi_ut_get_type_name(((union acpi_object *)return_buffer->
pointer)->type),
acpi_ut_get_type_name(return_type)));
@@ -147,7 +166,11 @@ acpi_evaluate_object_typed(acpi_handle handle,
}
return_buffer->length = 0;
- return_ACPI_STATUS(AE_TYPE);
+ status = AE_TYPE;
+
+exit:
+ ACPI_FREE(full_pathname);
+ return_ACPI_STATUS(status);
}
ACPI_EXPORT_SYMBOL(acpi_evaluate_object_typed)
diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c
index b4224005783c..bb04dec168ad 100644
--- a/drivers/acpi/acpica/psloop.c
+++ b/drivers/acpi/acpica/psloop.c
@@ -164,6 +164,11 @@ acpi_ps_get_arguments(struct acpi_walk_state *walk_state,
INCREMENT_ARG_LIST(walk_state->arg_types);
}
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
+ "Final argument count: %u pass %u\n",
+ walk_state->arg_count,
+ walk_state->pass_number));
+
/*
* Handle executable code at "module-level". This refers to
* executable opcodes that appear outside of any control method.
@@ -277,6 +282,11 @@ acpi_ps_get_arguments(struct acpi_walk_state *walk_state,
AML_NAME_OP)
&& (walk_state->pass_number <=
ACPI_IMODE_LOAD_PASS2)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
+ "Setup Package/Buffer: Pass %u, AML Ptr: %p\n",
+ walk_state->pass_number,
+ aml_op_start));
+
/*
* Skip parsing of Buffers and Packages because we don't have
* enough info in the first pass to parse them correctly.
@@ -570,6 +580,10 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
/* Check for arguments that need to be processed */
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
+ "Parseloop: argument count: %u\n",
+ walk_state->arg_count));
+
if (walk_state->arg_count) {
/*
* There are arguments (complex ones), push Op and
diff --git a/drivers/acpi/acpica/psobject.c b/drivers/acpi/acpica/psobject.c
index 5bcb61831706..0bef6df71bba 100644
--- a/drivers/acpi/acpica/psobject.c
+++ b/drivers/acpi/acpica/psobject.c
@@ -122,6 +122,9 @@ static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state)
(u32)(aml_offset +
sizeof(struct acpi_table_header)));
+ ACPI_ERROR((AE_INFO,
+ "Aborting disassembly, AML byte code is corrupt"));
+
/* Dump the context surrounding the invalid opcode */
acpi_ut_dump_buffer(((u8 *)walk_state->parser_state.
@@ -130,6 +133,14 @@ static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state)
sizeof(struct acpi_table_header) -
16));
acpi_os_printf(" */\n");
+
+ /*
+ * Just abort the disassembly, cannot continue because the
+ * parser is essentially lost. The disassembler can then
+ * randomly fail because an ill-constructed parse tree
+ * can result.
+ */
+ return_ACPI_STATUS(AE_AML_BAD_OPCODE);
#endif
}
@@ -331,6 +342,9 @@ acpi_ps_create_op(struct acpi_walk_state *walk_state,
if (status == AE_CTRL_PARSE_CONTINUE) {
return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
}
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
/* Create Op structure and append to parent's argument list */
@@ -345,6 +359,32 @@ acpi_ps_create_op(struct acpi_walk_state *walk_state,
acpi_ps_build_named_op(walk_state, aml_op_start, op,
&named_op);
acpi_ps_free_op(op);
+
+#ifdef ACPI_ASL_COMPILER
+ if (acpi_gbl_disasm_flag
+ && walk_state->opcode == AML_EXTERNAL_OP
+ && status == AE_NOT_FOUND) {
+ /*
+ * If parsing of AML_EXTERNAL_OP's name path fails, then skip
+ * past this opcode and keep parsing. This is a much better
+ * alternative than to abort the entire disassembler. At this
+ * point, the parser_state is at the end of the namepath of the
+ * external declaration opcode. Setting walk_state->Aml to
+ * walk_state->parser_state.Aml + 2 moves increments the
+ * walk_state->Aml past the object type and the paramcount of the
+ * external opcode. For the error message, only print the AML
+ * offset. We could attempt to print the name but this may cause
+ * a segmentation fault when printing the namepath because the
+ * AML may be incorrect.
+ */
+ acpi_os_printf
+ ("// Invalid external declaration at AML offset 0x%x.\n",
+ walk_state->aml -
+ walk_state->parser_state.aml_start);
+ walk_state->aml = walk_state->parser_state.aml + 2;
+ return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
+ }
+#endif
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
diff --git a/drivers/acpi/acpica/psopcode.c b/drivers/acpi/acpica/psopcode.c
index c343a0d5a3d2..a402ad772a1e 100644
--- a/drivers/acpi/acpica/psopcode.c
+++ b/drivers/acpi/acpica/psopcode.c
@@ -650,9 +650,11 @@ const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES] = {
/* ACPI 6.0 opcodes */
- /* 81 */ ACPI_OP("External", ARGP_EXTERNAL_OP, ARGI_EXTERNAL_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE, /* ? */
- AML_TYPE_EXEC_3A_0T_0R, AML_FLAGS_EXEC_3A_0T_0R),
+/* 81 */ ACPI_OP("External", ARGP_EXTERNAL_OP, ARGI_EXTERNAL_OP,
+ ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT,
+ AML_TYPE_NAMED_SIMPLE,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+ AML_NSNODE | AML_NAMED),
/* 82 */ ACPI_OP("Comment", ARGP_COMMENT_OP, ARGI_COMMENT_OP,
ACPI_TYPE_STRING, AML_CLASS_ARGUMENT,
AML_TYPE_LITERAL, AML_CONSTANT)
diff --git a/drivers/acpi/acpica/psparse.c b/drivers/acpi/acpica/psparse.c
index 8116a670de39..ac88319dc111 100644
--- a/drivers/acpi/acpica/psparse.c
+++ b/drivers/acpi/acpica/psparse.c
@@ -56,6 +56,7 @@
#include "acdispat.h"
#include "amlcode.h"
#include "acinterp.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_PARSER
ACPI_MODULE_NAME("psparse")
@@ -538,9 +539,16 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
/* Either the method parse or actual execution failed */
acpi_ex_exit_interpreter();
- ACPI_ERROR_METHOD("Method parse/execution failed",
- walk_state->method_node, NULL,
- status);
+ if (status == AE_ABORT_METHOD) {
+ acpi_ns_print_node_pathname(walk_state->
+ method_node,
+ "Method aborted:");
+ acpi_os_printf("\n");
+ } else {
+ ACPI_ERROR_METHOD
+ ("Method parse/execution failed",
+ walk_state->method_node, NULL, status);
+ }
acpi_ex_enter_interpreter();
/* Check for possible multi-thread reentrancy problem */
diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c
index 74e47f829ccb..659fb718504a 100644
--- a/drivers/acpi/acpica/rscalc.c
+++ b/drivers/acpi/acpica/rscalc.c
@@ -340,6 +340,22 @@ acpi_rs_get_aml_length(struct acpi_resource *resource,
break;
+ case ACPI_RESOURCE_TYPE_PIN_FUNCTION:
+
+ total_size = (acpi_rs_length)(total_size +
+ (resource->data.
+ pin_function.
+ pin_table_length * 2) +
+ resource->data.
+ pin_function.
+ resource_source.
+ string_length +
+ resource->data.
+ pin_function.
+ vendor_length);
+
+ break;
+
case ACPI_RESOURCE_TYPE_SERIAL_BUS:
total_size =
@@ -359,6 +375,67 @@ acpi_rs_get_aml_length(struct acpi_resource *resource,
break;
+ case ACPI_RESOURCE_TYPE_PIN_CONFIG:
+
+ total_size = (acpi_rs_length)(total_size +
+ (resource->data.
+ pin_config.
+ pin_table_length * 2) +
+ resource->data.pin_config.
+ resource_source.
+ string_length +
+ resource->data.pin_config.
+ vendor_length);
+
+ break;
+
+ case ACPI_RESOURCE_TYPE_PIN_GROUP:
+
+ total_size = (acpi_rs_length)(total_size +
+ (resource->data.pin_group.
+ pin_table_length * 2) +
+ resource->data.pin_group.
+ resource_label.
+ string_length +
+ resource->data.pin_group.
+ vendor_length);
+
+ break;
+
+ case ACPI_RESOURCE_TYPE_PIN_GROUP_FUNCTION:
+
+ total_size = (acpi_rs_length)(total_size +
+ resource->data.
+ pin_group_function.
+ resource_source.
+ string_length +
+ resource->data.
+ pin_group_function.
+ resource_source_label.
+ string_length +
+ resource->data.
+ pin_group_function.
+ vendor_length);
+
+ break;
+
+ case ACPI_RESOURCE_TYPE_PIN_GROUP_CONFIG:
+
+ total_size = (acpi_rs_length)(total_size +
+ resource->data.
+ pin_group_config.
+ resource_source.
+ string_length +
+ resource->data.
+ pin_group_config.
+ resource_source_label.
+ string_length +
+ resource->data.
+ pin_group_config.
+ vendor_length);
+
+ break;
+
default:
break;
@@ -537,6 +614,24 @@ acpi_rs_get_list_length(u8 *aml_buffer,
}
break;
+ case ACPI_RESOURCE_NAME_PIN_FUNCTION:
+
+ /* Vendor data is optional */
+
+ if (aml_resource->pin_function.vendor_length) {
+ extra_struct_bytes +=
+ aml_resource->pin_function.vendor_offset -
+ aml_resource->pin_function.
+ pin_table_offset +
+ aml_resource->pin_function.vendor_length;
+ } else {
+ extra_struct_bytes +=
+ aml_resource->large_header.resource_length +
+ sizeof(struct aml_resource_large_header) -
+ aml_resource->pin_function.pin_table_offset;
+ }
+ break;
+
case ACPI_RESOURCE_NAME_SERIAL_BUS:
minimum_aml_resource_length =
@@ -547,6 +642,50 @@ acpi_rs_get_list_length(u8 *aml_buffer,
minimum_aml_resource_length;
break;
+ case ACPI_RESOURCE_NAME_PIN_CONFIG:
+
+ /* Vendor data is optional */
+
+ if (aml_resource->pin_config.vendor_length) {
+ extra_struct_bytes +=
+ aml_resource->pin_config.vendor_offset -
+ aml_resource->pin_config.pin_table_offset +
+ aml_resource->pin_config.vendor_length;
+ } else {
+ extra_struct_bytes +=
+ aml_resource->large_header.resource_length +
+ sizeof(struct aml_resource_large_header) -
+ aml_resource->pin_config.pin_table_offset;
+ }
+ break;
+
+ case ACPI_RESOURCE_NAME_PIN_GROUP:
+
+ extra_struct_bytes +=
+ aml_resource->pin_group.vendor_offset -
+ aml_resource->pin_group.pin_table_offset +
+ aml_resource->pin_group.vendor_length;
+
+ break;
+
+ case ACPI_RESOURCE_NAME_PIN_GROUP_FUNCTION:
+
+ extra_struct_bytes +=
+ aml_resource->pin_group_function.vendor_offset -
+ aml_resource->pin_group_function.res_source_offset +
+ aml_resource->pin_group_function.vendor_length;
+
+ break;
+
+ case ACPI_RESOURCE_NAME_PIN_GROUP_CONFIG:
+
+ extra_struct_bytes +=
+ aml_resource->pin_group_config.vendor_offset -
+ aml_resource->pin_group_config.res_source_offset +
+ aml_resource->pin_group_config.vendor_length;
+
+ break;
+
default:
break;
diff --git a/drivers/acpi/acpica/rsdump.c b/drivers/acpi/acpica/rsdump.c
index f4cdf8d832dc..55fd1880efbe 100644
--- a/drivers/acpi/acpica/rsdump.c
+++ b/drivers/acpi/acpica/rsdump.c
@@ -75,6 +75,10 @@ static void acpi_rs_dump_short_byte_list(u8 length, u8 *data);
static void
acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source);
+static void
+acpi_rs_dump_resource_label(char *title,
+ struct acpi_resource_label *resource_label);
+
static void acpi_rs_dump_address_common(union acpi_resource_data *resource);
static void
@@ -371,6 +375,26 @@ acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table)
target));
break;
+ case ACPI_RSD_LABEL:
+ /*
+ * resource_label
+ */
+ acpi_rs_dump_resource_label("Resource Label",
+ ACPI_CAST_PTR(struct
+ acpi_resource_label,
+ target));
+ break;
+
+ case ACPI_RSD_SOURCE_LABEL:
+ /*
+ * resource_source_label
+ */
+ acpi_rs_dump_resource_label("Resource Source Label",
+ ACPI_CAST_PTR(struct
+ acpi_resource_label,
+ target));
+ break;
+
default:
acpi_os_printf("**** Invalid table opcode [%X] ****\n",
@@ -414,6 +438,30 @@ acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source)
/*******************************************************************************
*
+ * FUNCTION: acpi_rs_dump_resource_label
+ *
+ * PARAMETERS: title - Title of the dumped resource field
+ * resource_label - Pointer to a Resource Label struct
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Common routine for dumping the resource_label
+ *
+ ******************************************************************************/
+
+static void
+acpi_rs_dump_resource_label(char *title,
+ struct acpi_resource_label *resource_label)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ acpi_rs_out_string(title,
+ resource_label->string_ptr ?
+ resource_label->string_ptr : "[Not Specified]");
+}
+
+/*******************************************************************************
+ *
* FUNCTION: acpi_rs_dump_address_common
*
* PARAMETERS: resource - Pointer to an internal resource descriptor
diff --git a/drivers/acpi/acpica/rsdumpinfo.c b/drivers/acpi/acpica/rsdumpinfo.c
index 8aacd28293fa..da150e17795b 100644
--- a/drivers/acpi/acpica/rsdumpinfo.c
+++ b/drivers/acpi/acpica/rsdumpinfo.c
@@ -314,6 +314,120 @@ struct acpi_rsdump_info acpi_rs_dump_gpio[16] = {
NULL},
};
+struct acpi_rsdump_info acpi_rs_dump_pin_function[10] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_pin_function),
+ "PinFunction", NULL},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(pin_function.revision_id),
+ "RevisionId", NULL},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(pin_function.pin_config), "PinConfig",
+ acpi_gbl_ppc_decode},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(pin_function.sharable), "Sharing",
+ acpi_gbl_shr_decode},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_function.function_number),
+ "FunctionNumber", NULL},
+ {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(pin_function.resource_source),
+ "ResourceSource", NULL},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_function.pin_table_length),
+ "PinTableLength", NULL},
+ {ACPI_RSD_WORDLIST, ACPI_RSD_OFFSET(pin_function.pin_table), "PinTable",
+ NULL},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_function.vendor_length),
+ "VendorLength", NULL},
+ {ACPI_RSD_SHORTLISTX, ACPI_RSD_OFFSET(pin_function.vendor_data),
+ "VendorData", NULL},
+};
+
+struct acpi_rsdump_info acpi_rs_dump_pin_config[11] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_pin_config),
+ "PinConfig", NULL},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(pin_config.revision_id), "RevisionId",
+ NULL},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(pin_config.producer_consumer),
+ "ProducerConsumer", acpi_gbl_consume_decode},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(pin_config.sharable), "Sharing",
+ acpi_gbl_shr_decode},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(pin_config.pin_config_type),
+ "PinConfigType", NULL},
+ {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(pin_config.pin_config_value),
+ "PinConfigValue", NULL},
+ {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(pin_config.resource_source),
+ "ResourceSource", NULL},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_config.pin_table_length),
+ "PinTableLength", NULL},
+ {ACPI_RSD_WORDLIST, ACPI_RSD_OFFSET(pin_config.pin_table), "PinTable",
+ NULL},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_config.vendor_length),
+ "VendorLength", NULL},
+ {ACPI_RSD_SHORTLISTX, ACPI_RSD_OFFSET(pin_config.vendor_data),
+ "VendorData", NULL},
+};
+
+struct acpi_rsdump_info acpi_rs_dump_pin_group[8] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_pin_group),
+ "PinGroup", NULL},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(pin_group.revision_id), "RevisionId",
+ NULL},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(pin_group.producer_consumer),
+ "ProducerConsumer", acpi_gbl_consume_decode},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_group.pin_table_length),
+ "PinTableLength", NULL},
+ {ACPI_RSD_WORDLIST, ACPI_RSD_OFFSET(pin_group.pin_table), "PinTable",
+ NULL},
+ {ACPI_RSD_LABEL, ACPI_RSD_OFFSET(pin_group.resource_label),
+ "ResourceLabel", NULL},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_group.vendor_length),
+ "VendorLength", NULL},
+ {ACPI_RSD_SHORTLISTX, ACPI_RSD_OFFSET(pin_group.vendor_data),
+ "VendorData", NULL},
+};
+
+struct acpi_rsdump_info acpi_rs_dump_pin_group_function[9] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_pin_group_function),
+ "PinGroupFunction", NULL},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(pin_group_function.revision_id),
+ "RevisionId", NULL},
+ {ACPI_RSD_1BITFLAG,
+ ACPI_RSD_OFFSET(pin_group_function.producer_consumer),
+ "ProducerConsumer", acpi_gbl_consume_decode},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(pin_group_function.sharable),
+ "Sharing", acpi_gbl_shr_decode},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_group_function.function_number),
+ "FunctionNumber", NULL},
+ {ACPI_RSD_SOURCE_LABEL,
+ ACPI_RSD_OFFSET(pin_group_function.resource_source_label),
+ "ResourceSourceLabel", NULL},
+ {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(pin_group_function.resource_source),
+ "ResourceSource", NULL},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_group_function.vendor_length),
+ "VendorLength", NULL},
+ {ACPI_RSD_SHORTLISTX, ACPI_RSD_OFFSET(pin_group_function.vendor_data),
+ "VendorData", NULL},
+};
+
+struct acpi_rsdump_info acpi_rs_dump_pin_group_config[10] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_pin_group_config),
+ "PinGroupConfig", NULL},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(pin_group_config.revision_id),
+ "RevisionId", NULL},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(pin_group_config.producer_consumer),
+ "ProducerConsumer", acpi_gbl_consume_decode},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(pin_group_config.sharable),
+ "Sharing", acpi_gbl_shr_decode},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(pin_group_config.pin_config_type),
+ "PinConfigType", NULL},
+ {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(pin_group_config.pin_config_value),
+ "PinConfigValue", NULL},
+ {ACPI_RSD_SOURCE_LABEL,
+ ACPI_RSD_OFFSET(pin_group_config.resource_source_label),
+ "ResourceSourceLabel", NULL},
+ {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(pin_group_config.resource_source),
+ "ResourceSource", NULL},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_group_config.vendor_length),
+ "VendorLength", NULL},
+ {ACPI_RSD_SHORTLISTX, ACPI_RSD_OFFSET(pin_group_config.vendor_data),
+ "VendorData", NULL},
+};
+
struct acpi_rsdump_info acpi_rs_dump_fixed_dma[4] = {
{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_dma),
"FixedDma", NULL},
diff --git a/drivers/acpi/acpica/rsinfo.c b/drivers/acpi/acpica/rsinfo.c
index 475da9d6aed5..b0e50518d766 100644
--- a/drivers/acpi/acpica/rsinfo.c
+++ b/drivers/acpi/acpica/rsinfo.c
@@ -80,6 +80,11 @@ struct acpi_rsconvert_info *acpi_gbl_set_resource_dispatch[] = {
acpi_rs_convert_gpio, /* 0x11, ACPI_RESOURCE_TYPE_GPIO */
acpi_rs_convert_fixed_dma, /* 0x12, ACPI_RESOURCE_TYPE_FIXED_DMA */
NULL, /* 0x13, ACPI_RESOURCE_TYPE_SERIAL_BUS - Use subtype table below */
+ acpi_rs_convert_pin_function, /* 0x14, ACPI_RESOURCE_TYPE_PIN_FUNCTION */
+ acpi_rs_convert_pin_config, /* 0x15, ACPI_RESOURCE_TYPE_PIN_CONFIG */
+ acpi_rs_convert_pin_group, /* 0x16, ACPI_RESOURCE_TYPE_PIN_GROUP */
+ acpi_rs_convert_pin_group_function, /* 0x17, ACPI_RESOURCE_TYPE_PIN_GROUP_FUNCTION */
+ acpi_rs_convert_pin_group_config, /* 0x18, ACPI_RESOURCE_TYPE_PIN_GROUP_CONFIG */
};
/* Dispatch tables for AML-to-resource (Get Resource) conversion functions */
@@ -119,8 +124,12 @@ struct acpi_rsconvert_info *acpi_gbl_get_resource_dispatch[] = {
acpi_rs_convert_address64, /* 0x0A, ACPI_RESOURCE_NAME_ADDRESS64 */
acpi_rs_convert_ext_address64, /* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64 */
acpi_rs_convert_gpio, /* 0x0C, ACPI_RESOURCE_NAME_GPIO */
- NULL, /* 0x0D, Reserved */
+ acpi_rs_convert_pin_function, /* 0x0D, ACPI_RESOURCE_NAME_PIN_FUNCTION */
NULL, /* 0x0E, ACPI_RESOURCE_NAME_SERIAL_BUS - Use subtype table below */
+ acpi_rs_convert_pin_config, /* 0x0F, ACPI_RESOURCE_NAME_PIN_CONFIG */
+ acpi_rs_convert_pin_group, /* 0x10, ACPI_RESOURCE_NAME_PIN_GROUP */
+ acpi_rs_convert_pin_group_function, /* 0x11, ACPI_RESOURCE_NAME_PIN_GROUP_FUNCTION */
+ acpi_rs_convert_pin_group_config, /* 0x12, ACPI_RESOURCE_NAME_PIN_GROUP_CONFIG */
};
/* Subtype table for serial_bus -- I2C, SPI, and UART */
@@ -157,6 +166,11 @@ struct acpi_rsdump_info *acpi_gbl_dump_resource_dispatch[] = {
acpi_rs_dump_gpio, /* ACPI_RESOURCE_TYPE_GPIO */
acpi_rs_dump_fixed_dma, /* ACPI_RESOURCE_TYPE_FIXED_DMA */
NULL, /* ACPI_RESOURCE_TYPE_SERIAL_BUS */
+ acpi_rs_dump_pin_function, /* ACPI_RESOURCE_TYPE_PIN_FUNCTION */
+ acpi_rs_dump_pin_config, /* ACPI_RESOURCE_TYPE_PIN_CONFIG */
+ acpi_rs_dump_pin_group, /* ACPI_RESOURCE_TYPE_PIN_GROUP */
+ acpi_rs_dump_pin_group_function, /* ACPI_RESOURCE_TYPE_PIN_GROUP_FUNCTION */
+ acpi_rs_dump_pin_group_config, /* ACPI_RESOURCE_TYPE_PIN_GROUP_CONFIG */
};
struct acpi_rsdump_info *acpi_gbl_dump_serial_bus_dispatch[] = {
@@ -193,6 +207,11 @@ const u8 acpi_gbl_aml_resource_sizes[] = {
sizeof(struct aml_resource_gpio), /* ACPI_RESOURCE_TYPE_GPIO */
sizeof(struct aml_resource_fixed_dma), /* ACPI_RESOURCE_TYPE_FIXED_DMA */
sizeof(struct aml_resource_common_serialbus), /* ACPI_RESOURCE_TYPE_SERIAL_BUS */
+ sizeof(struct aml_resource_pin_function), /* ACPI_RESOURCE_TYPE_PIN_FUNCTION */
+ sizeof(struct aml_resource_pin_config), /* ACPI_RESOURCE_TYPE_PIN_CONFIG */
+ sizeof(struct aml_resource_pin_group), /* ACPI_RESOURCE_TYPE_PIN_GROUP */
+ sizeof(struct aml_resource_pin_group_function), /* ACPI_RESOURCE_TYPE_PIN_GROUP_FUNCTION */
+ sizeof(struct aml_resource_pin_group_config), /* ACPI_RESOURCE_TYPE_PIN_GROUP_CONFIG */
};
const u8 acpi_gbl_resource_struct_sizes[] = {
@@ -230,7 +249,12 @@ const u8 acpi_gbl_resource_struct_sizes[] = {
ACPI_RS_SIZE(struct acpi_resource_address64),
ACPI_RS_SIZE(struct acpi_resource_extended_address64),
ACPI_RS_SIZE(struct acpi_resource_gpio),
- ACPI_RS_SIZE(struct acpi_resource_common_serialbus)
+ ACPI_RS_SIZE(struct acpi_resource_pin_function),
+ ACPI_RS_SIZE(struct acpi_resource_common_serialbus),
+ ACPI_RS_SIZE(struct acpi_resource_pin_config),
+ ACPI_RS_SIZE(struct acpi_resource_pin_group),
+ ACPI_RS_SIZE(struct acpi_resource_pin_group_function),
+ ACPI_RS_SIZE(struct acpi_resource_pin_group_config),
};
const u8 acpi_gbl_aml_resource_serial_bus_sizes[] = {
diff --git a/drivers/acpi/acpica/rsmisc.c b/drivers/acpi/acpica/rsmisc.c
index 2ae79613f6b7..cc4b5486c4bc 100644
--- a/drivers/acpi/acpica/rsmisc.c
+++ b/drivers/acpi/acpica/rsmisc.c
@@ -596,9 +596,7 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
/* Set vendor offset only if there is vendor data */
- if (resource->data.gpio.vendor_length) {
- ACPI_SET16(target, aml_length);
- }
+ ACPI_SET16(target, aml_length);
acpi_rs_set_resource_length(aml_length, aml);
break;
diff --git a/drivers/acpi/acpica/rsserial.c b/drivers/acpi/acpica/rsserial.c
index c20e6d07928d..14d12d6eb716 100644
--- a/drivers/acpi/acpica/rsserial.c
+++ b/drivers/acpi/acpica/rsserial.c
@@ -147,6 +147,82 @@ struct acpi_rsconvert_info acpi_rs_convert_gpio[18] = {
/*******************************************************************************
*
+ * acpi_rs_convert_pinfunction
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_convert_pin_function[13] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_PIN_FUNCTION,
+ ACPI_RS_SIZE(struct acpi_resource_pin_function),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_pin_function)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_PIN_FUNCTION,
+ sizeof(struct aml_resource_pin_function),
+ 0},
+
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.pin_function.revision_id),
+ AML_OFFSET(pin_function.revision_id),
+ 1},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.pin_function.sharable),
+ AML_OFFSET(pin_function.flags),
+ 0},
+
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.pin_function.pin_config),
+ AML_OFFSET(pin_function.pin_config),
+ 1},
+
+ {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.pin_function.function_number),
+ AML_OFFSET(pin_function.function_number),
+ 2},
+
+ /* Pin Table */
+
+ /*
+ * It is OK to use GPIO operations here because none of them refer GPIO
+ * structures directly but instead use offsets given here.
+ */
+
+ {ACPI_RSC_COUNT_GPIO_PIN,
+ ACPI_RS_OFFSET(data.pin_function.pin_table_length),
+ AML_OFFSET(pin_function.pin_table_offset),
+ AML_OFFSET(pin_function.res_source_offset)},
+
+ {ACPI_RSC_MOVE_GPIO_PIN, ACPI_RS_OFFSET(data.pin_function.pin_table),
+ AML_OFFSET(pin_function.pin_table_offset),
+ 0},
+
+ /* Resource Source */
+
+ {ACPI_RSC_MOVE8,
+ ACPI_RS_OFFSET(data.pin_function.resource_source.index),
+ AML_OFFSET(pin_function.res_source_index),
+ 1},
+
+ {ACPI_RSC_COUNT_GPIO_RES,
+ ACPI_RS_OFFSET(data.pin_function.resource_source.string_length),
+ AML_OFFSET(pin_function.res_source_offset),
+ AML_OFFSET(pin_function.vendor_offset)},
+
+ {ACPI_RSC_MOVE_GPIO_RES,
+ ACPI_RS_OFFSET(data.pin_function.resource_source.string_ptr),
+ AML_OFFSET(pin_function.res_source_offset),
+ 0},
+
+ /* Vendor Data */
+
+ {ACPI_RSC_COUNT_GPIO_VEN,
+ ACPI_RS_OFFSET(data.pin_function.vendor_length),
+ AML_OFFSET(pin_function.vendor_length),
+ 1},
+
+ {ACPI_RSC_MOVE_GPIO_RES, ACPI_RS_OFFSET(data.pin_function.vendor_data),
+ AML_OFFSET(pin_function.vendor_offset),
+ 0},
+};
+
+/*******************************************************************************
+ *
* acpi_rs_convert_i2c_serial_bus
*
******************************************************************************/
@@ -458,3 +534,300 @@ struct acpi_rsconvert_info acpi_rs_convert_uart_serial_bus[23] = {
AML_OFFSET(uart_serial_bus.default_baud_rate),
1},
};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_pin_config
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_convert_pin_config[14] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_PIN_CONFIG,
+ ACPI_RS_SIZE(struct acpi_resource_pin_config),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_pin_config)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_PIN_CONFIG,
+ sizeof(struct aml_resource_pin_config),
+ 0},
+
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.pin_config.revision_id),
+ AML_OFFSET(pin_config.revision_id),
+ 1},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.pin_config.sharable),
+ AML_OFFSET(pin_config.flags),
+ 0},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.pin_config.producer_consumer),
+ AML_OFFSET(pin_config.flags),
+ 1},
+
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.pin_config.pin_config_type),
+ AML_OFFSET(pin_config.pin_config_type),
+ 1},
+
+ {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.pin_config.pin_config_value),
+ AML_OFFSET(pin_config.pin_config_value),
+ 1},
+
+ /* Pin Table */
+
+ /*
+ * It is OK to use GPIO operations here because none of them refer GPIO
+ * structures directly but instead use offsets given here.
+ */
+
+ {ACPI_RSC_COUNT_GPIO_PIN,
+ ACPI_RS_OFFSET(data.pin_config.pin_table_length),
+ AML_OFFSET(pin_config.pin_table_offset),
+ AML_OFFSET(pin_config.res_source_offset)},
+
+ {ACPI_RSC_MOVE_GPIO_PIN, ACPI_RS_OFFSET(data.pin_config.pin_table),
+ AML_OFFSET(pin_config.pin_table_offset),
+ 0},
+
+ /* Resource Source */
+
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.pin_config.resource_source.index),
+ AML_OFFSET(pin_config.res_source_index),
+ 1},
+
+ {ACPI_RSC_COUNT_GPIO_RES,
+ ACPI_RS_OFFSET(data.pin_config.resource_source.string_length),
+ AML_OFFSET(pin_config.res_source_offset),
+ AML_OFFSET(pin_config.vendor_offset)},
+
+ {ACPI_RSC_MOVE_GPIO_RES,
+ ACPI_RS_OFFSET(data.pin_config.resource_source.string_ptr),
+ AML_OFFSET(pin_config.res_source_offset),
+ 0},
+
+ /* Vendor Data */
+
+ {ACPI_RSC_COUNT_GPIO_VEN, ACPI_RS_OFFSET(data.pin_config.vendor_length),
+ AML_OFFSET(pin_config.vendor_length),
+ 1},
+
+ {ACPI_RSC_MOVE_GPIO_RES, ACPI_RS_OFFSET(data.pin_config.vendor_data),
+ AML_OFFSET(pin_config.vendor_offset),
+ 0},
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_pin_group
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_convert_pin_group[10] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_PIN_GROUP,
+ ACPI_RS_SIZE(struct acpi_resource_pin_group),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_pin_group)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_PIN_GROUP,
+ sizeof(struct aml_resource_pin_group),
+ 0},
+
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.pin_group.revision_id),
+ AML_OFFSET(pin_group.revision_id),
+ 1},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.pin_group.producer_consumer),
+ AML_OFFSET(pin_group.flags),
+ 0},
+
+ /* Pin Table */
+
+ /*
+ * It is OK to use GPIO operations here because none of them refer GPIO
+ * structures directly but instead use offsets given here.
+ */
+
+ {ACPI_RSC_COUNT_GPIO_PIN,
+ ACPI_RS_OFFSET(data.pin_group.pin_table_length),
+ AML_OFFSET(pin_group.pin_table_offset),
+ AML_OFFSET(pin_group.label_offset)},
+
+ {ACPI_RSC_MOVE_GPIO_PIN, ACPI_RS_OFFSET(data.pin_group.pin_table),
+ AML_OFFSET(pin_group.pin_table_offset),
+ 0},
+
+ /* Resource Label */
+
+ {ACPI_RSC_COUNT_GPIO_RES,
+ ACPI_RS_OFFSET(data.pin_group.resource_label.string_length),
+ AML_OFFSET(pin_group.label_offset),
+ AML_OFFSET(pin_group.vendor_offset)},
+
+ {ACPI_RSC_MOVE_GPIO_RES,
+ ACPI_RS_OFFSET(data.pin_group.resource_label.string_ptr),
+ AML_OFFSET(pin_group.label_offset),
+ 0},
+
+ /* Vendor Data */
+
+ {ACPI_RSC_COUNT_GPIO_VEN, ACPI_RS_OFFSET(data.pin_group.vendor_length),
+ AML_OFFSET(pin_group.vendor_length),
+ 1},
+
+ {ACPI_RSC_MOVE_GPIO_RES, ACPI_RS_OFFSET(data.pin_group.vendor_data),
+ AML_OFFSET(pin_group.vendor_offset),
+ 0},
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_pin_group_function
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_convert_pin_group_function[13] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_PIN_GROUP_FUNCTION,
+ ACPI_RS_SIZE(struct acpi_resource_pin_group_function),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_pin_group_function)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_PIN_GROUP_FUNCTION,
+ sizeof(struct aml_resource_pin_group_function),
+ 0},
+
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.pin_group_function.revision_id),
+ AML_OFFSET(pin_group_function.revision_id),
+ 1},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.pin_group_function.sharable),
+ AML_OFFSET(pin_group_function.flags),
+ 0},
+
+ {ACPI_RSC_1BITFLAG,
+ ACPI_RS_OFFSET(data.pin_group_function.producer_consumer),
+ AML_OFFSET(pin_group_function.flags),
+ 1},
+
+ {ACPI_RSC_MOVE16,
+ ACPI_RS_OFFSET(data.pin_group_function.function_number),
+ AML_OFFSET(pin_group_function.function_number),
+ 1},
+
+ /* Resource Source */
+
+ {ACPI_RSC_MOVE8,
+ ACPI_RS_OFFSET(data.pin_group_function.resource_source.index),
+ AML_OFFSET(pin_group_function.res_source_index),
+ 1},
+
+ {ACPI_RSC_COUNT_GPIO_RES,
+ ACPI_RS_OFFSET(data.pin_group_function.resource_source.string_length),
+ AML_OFFSET(pin_group_function.res_source_offset),
+ AML_OFFSET(pin_group_function.res_source_label_offset)},
+
+ {ACPI_RSC_MOVE_GPIO_RES,
+ ACPI_RS_OFFSET(data.pin_group_function.resource_source.string_ptr),
+ AML_OFFSET(pin_group_function.res_source_offset),
+ 0},
+
+ /* Resource Source Label */
+
+ {ACPI_RSC_COUNT_GPIO_RES,
+ ACPI_RS_OFFSET(data.pin_group_function.resource_source_label.
+ string_length),
+ AML_OFFSET(pin_group_function.res_source_label_offset),
+ AML_OFFSET(pin_group_function.vendor_offset)},
+
+ {ACPI_RSC_MOVE_GPIO_RES,
+ ACPI_RS_OFFSET(data.pin_group_function.resource_source_label.
+ string_ptr),
+ AML_OFFSET(pin_group_function.res_source_label_offset),
+ 0},
+
+ /* Vendor Data */
+
+ {ACPI_RSC_COUNT_GPIO_VEN,
+ ACPI_RS_OFFSET(data.pin_group_function.vendor_length),
+ AML_OFFSET(pin_group_function.vendor_length),
+ 1},
+
+ {ACPI_RSC_MOVE_GPIO_RES,
+ ACPI_RS_OFFSET(data.pin_group_function.vendor_data),
+ AML_OFFSET(pin_group_function.vendor_offset),
+ 0},
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_pin_group_config
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_convert_pin_group_config[14] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_PIN_GROUP_CONFIG,
+ ACPI_RS_SIZE(struct acpi_resource_pin_group_config),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_pin_group_config)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_PIN_GROUP_CONFIG,
+ sizeof(struct aml_resource_pin_group_config),
+ 0},
+
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.pin_group_config.revision_id),
+ AML_OFFSET(pin_group_config.revision_id),
+ 1},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.pin_group_config.sharable),
+ AML_OFFSET(pin_group_config.flags),
+ 0},
+
+ {ACPI_RSC_1BITFLAG,
+ ACPI_RS_OFFSET(data.pin_group_config.producer_consumer),
+ AML_OFFSET(pin_group_config.flags),
+ 1},
+
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.pin_group_config.pin_config_type),
+ AML_OFFSET(pin_group_config.pin_config_type),
+ 1},
+
+ {ACPI_RSC_MOVE32,
+ ACPI_RS_OFFSET(data.pin_group_config.pin_config_value),
+ AML_OFFSET(pin_group_config.pin_config_value),
+ 1},
+
+ /* Resource Source */
+
+ {ACPI_RSC_MOVE8,
+ ACPI_RS_OFFSET(data.pin_group_config.resource_source.index),
+ AML_OFFSET(pin_group_config.res_source_index),
+ 1},
+
+ {ACPI_RSC_COUNT_GPIO_RES,
+ ACPI_RS_OFFSET(data.pin_group_config.resource_source.string_length),
+ AML_OFFSET(pin_group_config.res_source_offset),
+ AML_OFFSET(pin_group_config.res_source_label_offset)},
+
+ {ACPI_RSC_MOVE_GPIO_RES,
+ ACPI_RS_OFFSET(data.pin_group_config.resource_source.string_ptr),
+ AML_OFFSET(pin_group_config.res_source_offset),
+ 0},
+
+ /* Resource Source Label */
+
+ {ACPI_RSC_COUNT_GPIO_RES,
+ ACPI_RS_OFFSET(data.pin_group_config.resource_source_label.
+ string_length),
+ AML_OFFSET(pin_group_config.res_source_label_offset),
+ AML_OFFSET(pin_group_config.vendor_offset)},
+
+ {ACPI_RSC_MOVE_GPIO_RES,
+ ACPI_RS_OFFSET(data.pin_group_config.resource_source_label.string_ptr),
+ AML_OFFSET(pin_group_config.res_source_label_offset),
+ 0},
+
+ /* Vendor Data */
+
+ {ACPI_RSC_COUNT_GPIO_VEN,
+ ACPI_RS_OFFSET(data.pin_group_config.vendor_length),
+ AML_OFFSET(pin_group_config.vendor_length),
+ 1},
+
+ {ACPI_RSC_MOVE_GPIO_RES,
+ ACPI_RS_OFFSET(data.pin_group_config.vendor_data),
+ AML_OFFSET(pin_group_config.vendor_offset),
+ 0},
+};
diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c
index 59a4f9ed06a7..be65e65e216e 100644
--- a/drivers/acpi/acpica/rsxface.c
+++ b/drivers/acpi/acpica/rsxface.c
@@ -615,7 +615,7 @@ ACPI_EXPORT_SYMBOL(acpi_walk_resource_buffer)
* device we are querying
* name - Method name of the resources we want.
* (METHOD_NAME__CRS, METHOD_NAME__PRS, or
- * METHOD_NAME__AEI)
+ * METHOD_NAME__AEI or METHOD_NAME__DMA)
* user_function - Called for each resource
* context - Passed to user_function
*
@@ -641,11 +641,12 @@ acpi_walk_resources(acpi_handle device_handle,
if (!device_handle || !user_function || !name ||
(!ACPI_COMPARE_NAME(name, METHOD_NAME__CRS) &&
!ACPI_COMPARE_NAME(name, METHOD_NAME__PRS) &&
- !ACPI_COMPARE_NAME(name, METHOD_NAME__AEI))) {
+ !ACPI_COMPARE_NAME(name, METHOD_NAME__AEI) &&
+ !ACPI_COMPARE_NAME(name, METHOD_NAME__DMA))) {
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
- /* Get the _CRS/_PRS/_AEI resource list */
+ /* Get the _CRS/_PRS/_AEI/_DMA resource list */
buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
status = acpi_rs_get_method_data(device_handle, name, &buffer);
diff --git a/drivers/acpi/acpica/tbdata.c b/drivers/acpi/acpica/tbdata.c
index 27c5c27d4818..b19a2f0ea331 100644
--- a/drivers/acpi/acpica/tbdata.c
+++ b/drivers/acpi/acpica/tbdata.c
@@ -50,6 +50,57 @@
#define _COMPONENT ACPI_TABLES
ACPI_MODULE_NAME("tbdata")
+/* Local prototypes */
+static acpi_status
+acpi_tb_check_duplication(struct acpi_table_desc *table_desc, u32 *table_index);
+
+static u8
+acpi_tb_compare_tables(struct acpi_table_desc *table_desc, u32 table_index);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_compare_tables
+ *
+ * PARAMETERS: table_desc - Table 1 descriptor to be compared
+ * table_index - Index of table 2 to be compared
+ *
+ * RETURN: TRUE if both tables are identical.
+ *
+ * DESCRIPTION: This function compares a table with another table that has
+ * already been installed in the root table list.
+ *
+ ******************************************************************************/
+
+static u8
+acpi_tb_compare_tables(struct acpi_table_desc *table_desc, u32 table_index)
+{
+ acpi_status status = AE_OK;
+ u8 is_identical;
+ struct acpi_table_header *table;
+ u32 table_length;
+ u8 table_flags;
+
+ status =
+ acpi_tb_acquire_table(&acpi_gbl_root_table_list.tables[table_index],
+ &table, &table_length, &table_flags);
+ if (ACPI_FAILURE(status)) {
+ return (FALSE);
+ }
+
+ /*
+ * Check for a table match on the entire table length,
+ * not just the header.
+ */
+ is_identical = (u8)((table_desc->length != table_length ||
+ memcmp(table_desc->pointer, table, table_length)) ?
+ FALSE : TRUE);
+
+ /* Release the acquired table */
+
+ acpi_tb_release_table(table, table_length, table_flags);
+ return (is_identical);
+}
+
/*******************************************************************************
*
* FUNCTION: acpi_tb_init_table_descriptor
@@ -64,6 +115,7 @@ ACPI_MODULE_NAME("tbdata")
* DESCRIPTION: Initialize a new table descriptor
*
******************************************************************************/
+
void
acpi_tb_init_table_descriptor(struct acpi_table_desc *table_desc,
acpi_physical_address address,
@@ -338,7 +390,7 @@ void acpi_tb_invalidate_table(struct acpi_table_desc *table_desc)
acpi_status acpi_tb_validate_temp_table(struct acpi_table_desc *table_desc)
{
- if (!table_desc->pointer && !acpi_gbl_verify_table_checksum) {
+ if (!table_desc->pointer && !acpi_gbl_enable_table_validation) {
/*
* Only validates the header of the table.
* Note that Length contains the size of the mapping after invoking
@@ -354,22 +406,100 @@ acpi_status acpi_tb_validate_temp_table(struct acpi_table_desc *table_desc)
return (acpi_tb_validate_table(table_desc));
}
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_check_duplication
+ *
+ * PARAMETERS: table_desc - Table descriptor
+ * table_index - Where the table index is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Avoid installing duplicated tables. However table override and
+ * user aided dynamic table load is allowed, thus comparing the
+ * address of the table is not sufficient, and checking the entire
+ * table content is required.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_tb_check_duplication(struct acpi_table_desc *table_desc, u32 *table_index)
+{
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(tb_check_duplication);
+
+ /* Check if table is already registered */
+
+ for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) {
+
+ /* Do not compare with unverified tables */
+
+ if (!
+ (acpi_gbl_root_table_list.tables[i].
+ flags & ACPI_TABLE_IS_VERIFIED)) {
+ continue;
+ }
+
+ /*
+ * Check for a table match on the entire table length,
+ * not just the header.
+ */
+ if (!acpi_tb_compare_tables(table_desc, i)) {
+ continue;
+ }
+
+ /*
+ * Note: the current mechanism does not unregister a table if it is
+ * dynamically unloaded. The related namespace entries are deleted,
+ * but the table remains in the root table list.
+ *
+ * The assumption here is that the number of different tables that
+ * will be loaded is actually small, and there is minimal overhead
+ * in just keeping the table in case it is needed again.
+ *
+ * If this assumption changes in the future (perhaps on large
+ * machines with many table load/unload operations), tables will
+ * need to be unregistered when they are unloaded, and slots in the
+ * root table list should be reused when empty.
+ */
+ if (acpi_gbl_root_table_list.tables[i].flags &
+ ACPI_TABLE_IS_LOADED) {
+
+ /* Table is still loaded, this is an error */
+
+ return_ACPI_STATUS(AE_ALREADY_EXISTS);
+ } else {
+ *table_index = i;
+ return_ACPI_STATUS(AE_CTRL_TERMINATE);
+ }
+ }
+
+ /* Indicate no duplication to the caller */
+
+ return_ACPI_STATUS(AE_OK);
+}
+
/******************************************************************************
*
* FUNCTION: acpi_tb_verify_temp_table
*
* PARAMETERS: table_desc - Table descriptor
* signature - Table signature to verify
+ * table_index - Where the table index is returned
*
* RETURN: Status
*
* DESCRIPTION: This function is called to validate and verify the table, the
* returned table descriptor is in "VALIDATED" state.
+ * Note that 'TableIndex' is required to be set to !NULL to
+ * enable duplication check.
*
*****************************************************************************/
acpi_status
-acpi_tb_verify_temp_table(struct acpi_table_desc *table_desc, char *signature)
+acpi_tb_verify_temp_table(struct acpi_table_desc *table_desc,
+ char *signature, u32 *table_index)
{
acpi_status status = AE_OK;
@@ -392,9 +522,10 @@ acpi_tb_verify_temp_table(struct acpi_table_desc *table_desc, char *signature)
goto invalidate_and_exit;
}
- /* Verify the checksum */
+ if (acpi_gbl_enable_table_validation) {
+
+ /* Verify the checksum */
- if (acpi_gbl_verify_table_checksum) {
status =
acpi_tb_verify_checksum(table_desc->pointer,
table_desc->length);
@@ -411,9 +542,34 @@ acpi_tb_verify_temp_table(struct acpi_table_desc *table_desc, char *signature)
goto invalidate_and_exit;
}
+
+ /* Avoid duplications */
+
+ if (table_index) {
+ status =
+ acpi_tb_check_duplication(table_desc, table_index);
+ if (ACPI_FAILURE(status)) {
+ if (status != AE_CTRL_TERMINATE) {
+ ACPI_EXCEPTION((AE_INFO, AE_NO_MEMORY,
+ "%4.4s 0x%8.8X%8.8X"
+ " Table is duplicated",
+ acpi_ut_valid_nameseg
+ (table_desc->signature.
+ ascii) ? table_desc->
+ signature.
+ ascii : "????",
+ ACPI_FORMAT_UINT64
+ (table_desc->address)));
+ }
+
+ goto invalidate_and_exit;
+ }
+ }
+
+ table_desc->flags |= ACPI_TABLE_IS_VERIFIED;
}
- return_ACPI_STATUS(AE_OK);
+ return_ACPI_STATUS(status);
invalidate_and_exit:
acpi_tb_invalidate_table(table_desc);
@@ -436,6 +592,8 @@ acpi_status acpi_tb_resize_root_table_list(void)
{
struct acpi_table_desc *tables;
u32 table_count;
+ u32 current_table_count, max_table_count;
+ u32 i;
ACPI_FUNCTION_TRACE(tb_resize_root_table_list);
@@ -455,8 +613,8 @@ acpi_status acpi_tb_resize_root_table_list(void)
table_count = acpi_gbl_root_table_list.current_table_count;
}
- tables = ACPI_ALLOCATE_ZEROED(((acpi_size)table_count +
- ACPI_ROOT_TABLE_SIZE_INCREMENT) *
+ max_table_count = table_count + ACPI_ROOT_TABLE_SIZE_INCREMENT;
+ tables = ACPI_ALLOCATE_ZEROED(((acpi_size)max_table_count) *
sizeof(struct acpi_table_desc));
if (!tables) {
ACPI_ERROR((AE_INFO,
@@ -466,9 +624,16 @@ acpi_status acpi_tb_resize_root_table_list(void)
/* Copy and free the previous table array */
+ current_table_count = 0;
if (acpi_gbl_root_table_list.tables) {
- memcpy(tables, acpi_gbl_root_table_list.tables,
- (acpi_size)table_count * sizeof(struct acpi_table_desc));
+ for (i = 0; i < table_count; i++) {
+ if (acpi_gbl_root_table_list.tables[i].address) {
+ memcpy(tables + current_table_count,
+ acpi_gbl_root_table_list.tables + i,
+ sizeof(struct acpi_table_desc));
+ current_table_count++;
+ }
+ }
if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
ACPI_FREE(acpi_gbl_root_table_list.tables);
@@ -476,8 +641,8 @@ acpi_status acpi_tb_resize_root_table_list(void)
}
acpi_gbl_root_table_list.tables = tables;
- acpi_gbl_root_table_list.max_table_count =
- table_count + ACPI_ROOT_TABLE_SIZE_INCREMENT;
+ acpi_gbl_root_table_list.max_table_count = max_table_count;
+ acpi_gbl_root_table_list.current_table_count = current_table_count;
acpi_gbl_root_table_list.flags |= ACPI_ROOT_ORIGIN_ALLOCATED;
return_ACPI_STATUS(AE_OK);
@@ -818,13 +983,9 @@ acpi_tb_load_table(u32 table_index, struct acpi_namespace_node *parent_node)
acpi_ev_update_gpes(owner_id);
}
- /* Invoke table handler if present */
-
- if (acpi_gbl_table_handler) {
- (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD, table,
- acpi_gbl_table_handler_context);
- }
+ /* Invoke table handler */
+ acpi_tb_notify_table(ACPI_TABLE_EVENT_LOAD, table);
return_ACPI_STATUS(status);
}
@@ -867,6 +1028,8 @@ exit:
return_ACPI_STATUS(status);
}
+ACPI_EXPORT_SYMBOL(acpi_tb_install_and_load_table)
+
/*******************************************************************************
*
* FUNCTION: acpi_tb_unload_table
@@ -892,15 +1055,11 @@ acpi_status acpi_tb_unload_table(u32 table_index)
return_ACPI_STATUS(AE_NOT_EXIST);
}
- /* Invoke table handler if present */
+ /* Invoke table handler */
- if (acpi_gbl_table_handler) {
- status = acpi_get_table_by_index(table_index, &table);
- if (ACPI_SUCCESS(status)) {
- (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_UNLOAD,
- table,
- acpi_gbl_table_handler_context);
- }
+ status = acpi_get_table_by_index(table_index, &table);
+ if (ACPI_SUCCESS(status)) {
+ acpi_tb_notify_table(ACPI_TABLE_EVENT_UNLOAD, table);
}
/* Delete the portion of the namespace owned by this table */
@@ -914,3 +1073,28 @@ acpi_status acpi_tb_unload_table(u32 table_index)
acpi_tb_set_table_loaded_flag(table_index, FALSE);
return_ACPI_STATUS(status);
}
+
+ACPI_EXPORT_SYMBOL(acpi_tb_unload_table)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_notify_table
+ *
+ * PARAMETERS: event - Table event
+ * table - Validated table pointer
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Notify a table event to the users.
+ *
+ ******************************************************************************/
+
+void acpi_tb_notify_table(u32 event, void *table)
+{
+ /* Invoke table handler if present */
+
+ if (acpi_gbl_table_handler) {
+ (void)acpi_gbl_table_handler(event, table,
+ acpi_gbl_table_handler_context);
+ }
+}
diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c
index 51860bfc111e..5f051d82188d 100644
--- a/drivers/acpi/acpica/tbfadt.c
+++ b/drivers/acpi/acpica/tbfadt.c
@@ -449,8 +449,8 @@ void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length)
* The 64-bit X fields are optional extensions to the original 32-bit FADT
* V1.0 fields. Even if they are present in the FADT, they are optional and
* are unused if the BIOS sets them to zero. Therefore, we must copy/expand
- * 32-bit V1.0 fields to the 64-bit X fields if the the 64-bit X field is
- * originally zero.
+ * 32-bit V1.0 fields to the 64-bit X fields if the 64-bit X field is originally
+ * zero.
*
* For ACPI 1.0 FADTs (that contain no 64-bit addresses), all 32-bit address
* fields are expanded to the corresponding 64-bit X fields in the internal
diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c
index 4620f3c68c13..0dfc0ac3c141 100644
--- a/drivers/acpi/acpica/tbinstal.c
+++ b/drivers/acpi/acpica/tbinstal.c
@@ -48,54 +48,6 @@
#define _COMPONENT ACPI_TABLES
ACPI_MODULE_NAME("tbinstal")
-/* Local prototypes */
-static u8
-acpi_tb_compare_tables(struct acpi_table_desc *table_desc, u32 table_index);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_compare_tables
- *
- * PARAMETERS: table_desc - Table 1 descriptor to be compared
- * table_index - Index of table 2 to be compared
- *
- * RETURN: TRUE if both tables are identical.
- *
- * DESCRIPTION: This function compares a table with another table that has
- * already been installed in the root table list.
- *
- ******************************************************************************/
-
-static u8
-acpi_tb_compare_tables(struct acpi_table_desc *table_desc, u32 table_index)
-{
- acpi_status status = AE_OK;
- u8 is_identical;
- struct acpi_table_header *table;
- u32 table_length;
- u8 table_flags;
-
- status =
- acpi_tb_acquire_table(&acpi_gbl_root_table_list.tables[table_index],
- &table, &table_length, &table_flags);
- if (ACPI_FAILURE(status)) {
- return (FALSE);
- }
-
- /*
- * Check for a table match on the entire table length,
- * not just the header.
- */
- is_identical = (u8)((table_desc->length != table_length ||
- memcmp(table_desc->pointer, table, table_length)) ?
- FALSE : TRUE);
-
- /* Release the acquired table */
-
- acpi_tb_release_table(table, table_length, table_flags);
- return (is_identical);
-}
-
/*******************************************************************************
*
* FUNCTION: acpi_tb_install_table_with_override
@@ -112,7 +64,6 @@ acpi_tb_compare_tables(struct acpi_table_desc *table_desc, u32 table_index)
* table array.
*
******************************************************************************/
-
void
acpi_tb_install_table_with_override(struct acpi_table_desc *new_table_desc,
u8 override, u32 *table_index)
@@ -210,95 +161,29 @@ acpi_tb_install_standard_table(acpi_physical_address address,
goto release_and_exit;
}
- /* Validate and verify a table before installation */
-
- status = acpi_tb_verify_temp_table(&new_table_desc, NULL);
- if (ACPI_FAILURE(status)) {
- goto release_and_exit;
- }
-
/* Acquire the table lock */
(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
- if (reload) {
- /*
- * Validate the incoming table signature.
- *
- * 1) Originally, we checked the table signature for "SSDT" or "PSDT".
- * 2) We added support for OEMx tables, signature "OEM".
- * 3) Valid tables were encountered with a null signature, so we just
- * gave up on validating the signature, (05/2008).
- * 4) We encountered non-AML tables such as the MADT, which caused
- * interpreter errors and kernel faults. So now, we once again allow
- * only "SSDT", "OEMx", and now, also a null signature. (05/2011).
- */
- if ((new_table_desc.signature.ascii[0] != 0x00) &&
- (!ACPI_COMPARE_NAME
- (&new_table_desc.signature, ACPI_SIG_SSDT))
- && (strncmp(new_table_desc.signature.ascii, "OEM", 3))) {
- ACPI_BIOS_ERROR((AE_INFO,
- "Table has invalid signature [%4.4s] (0x%8.8X), "
- "must be SSDT or OEMx",
- acpi_ut_valid_nameseg(new_table_desc.
- signature.
- ascii) ?
- new_table_desc.signature.
- ascii : "????",
- new_table_desc.signature.integer));
-
- status = AE_BAD_SIGNATURE;
- goto unlock_and_exit;
- }
-
- /* Check if table is already registered */
-
- for (i = 0; i < acpi_gbl_root_table_list.current_table_count;
- ++i) {
- /*
- * Check for a table match on the entire table length,
- * not just the header.
- */
- if (!acpi_tb_compare_tables(&new_table_desc, i)) {
- continue;
- }
+ /* Validate and verify a table before installation */
+ status = acpi_tb_verify_temp_table(&new_table_desc, NULL, &i);
+ if (ACPI_FAILURE(status)) {
+ if (status == AE_CTRL_TERMINATE) {
/*
- * Note: the current mechanism does not unregister a table if it is
- * dynamically unloaded. The related namespace entries are deleted,
- * but the table remains in the root table list.
- *
- * The assumption here is that the number of different tables that
- * will be loaded is actually small, and there is minimal overhead
- * in just keeping the table in case it is needed again.
- *
- * If this assumption changes in the future (perhaps on large
- * machines with many table load/unload operations), tables will
- * need to be unregistered when they are unloaded, and slots in the
- * root table list should be reused when empty.
+ * Table was unloaded, allow it to be reloaded.
+ * As we are going to return AE_OK to the caller, we should
+ * take the responsibility of freeing the input descriptor.
+ * Refill the input descriptor to ensure
+ * acpi_tb_install_table_with_override() can be called again to
+ * indicate the re-installation.
*/
- if (acpi_gbl_root_table_list.tables[i].flags &
- ACPI_TABLE_IS_LOADED) {
-
- /* Table is still loaded, this is an error */
-
- status = AE_ALREADY_EXISTS;
- goto unlock_and_exit;
- } else {
- /*
- * Table was unloaded, allow it to be reloaded.
- * As we are going to return AE_OK to the caller, we should
- * take the responsibility of freeing the input descriptor.
- * Refill the input descriptor to ensure
- * acpi_tb_install_table_with_override() can be called again to
- * indicate the re-installation.
- */
- acpi_tb_uninstall_table(&new_table_desc);
- (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
- *table_index = i;
- return_ACPI_STATUS(AE_OK);
- }
+ acpi_tb_uninstall_table(&new_table_desc);
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ *table_index = i;
+ return_ACPI_STATUS(AE_OK);
}
+ goto unlock_and_exit;
}
/* Add the table to the global root table list */
@@ -306,14 +191,10 @@ acpi_tb_install_standard_table(acpi_physical_address address,
acpi_tb_install_table_with_override(&new_table_desc, override,
table_index);
- /* Invoke table handler if present */
+ /* Invoke table handler */
(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
- if (acpi_gbl_table_handler) {
- (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_INSTALL,
- new_table_desc.pointer,
- acpi_gbl_table_handler_context);
- }
+ acpi_tb_notify_table(ACPI_TABLE_EVENT_INSTALL, new_table_desc.pointer);
(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
unlock_and_exit:
@@ -382,9 +263,11 @@ void acpi_tb_override_table(struct acpi_table_desc *old_table_desc)
finish_override:
- /* Validate and verify a table before overriding */
-
- status = acpi_tb_verify_temp_table(&new_table_desc, NULL);
+ /*
+ * Validate and verify a table before overriding, no nested table
+ * duplication check as it's too complicated and unnecessary.
+ */
+ status = acpi_tb_verify_temp_table(&new_table_desc, NULL, NULL);
if (ACPI_FAILURE(status)) {
return;
}
diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c
index 0d2e98920069..0c6768d20395 100644
--- a/drivers/acpi/acpica/tbutils.c
+++ b/drivers/acpi/acpica/tbutils.c
@@ -141,9 +141,9 @@ void acpi_tb_check_dsdt_header(void)
*
* FUNCTION: acpi_tb_copy_dsdt
*
- * PARAMETERS: table_desc - Installed table to copy
+ * PARAMETERS: table_index - Index of installed table to copy
*
- * RETURN: None
+ * RETURN: The copied DSDT
*
* DESCRIPTION: Implements a subsystem option to copy the DSDT to local memory.
* Some very bad BIOSs are known to either corrupt the DSDT or
@@ -239,7 +239,7 @@ acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size)
*
* FUNCTION: acpi_tb_parse_root_table
*
- * PARAMETERS: rsdp - Pointer to the RSDP
+ * PARAMETERS: rsdp_address - Pointer to the RSDP
*
* RETURN: Status
*
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index 010b1c43df92..26ad596c973e 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -167,7 +167,8 @@ ACPI_EXPORT_SYMBOL_INIT(acpi_initialize_tables)
acpi_status ACPI_INIT_FUNCTION acpi_reallocate_root_table(void)
{
acpi_status status;
- u32 i;
+ struct acpi_table_desc *table_desc;
+ u32 i, j;
ACPI_FUNCTION_TRACE(acpi_reallocate_root_table);
@@ -179,6 +180,8 @@ acpi_status ACPI_INIT_FUNCTION acpi_reallocate_root_table(void)
return_ACPI_STATUS(AE_SUPPORT);
}
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+
/*
* Ensure OS early boot logic, which is required by some hosts. If the
* table state is reported to be wrong, developers should fix the
@@ -186,17 +189,39 @@ acpi_status ACPI_INIT_FUNCTION acpi_reallocate_root_table(void)
* early stage.
*/
for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) {
- if (acpi_gbl_root_table_list.tables[i].pointer) {
+ table_desc = &acpi_gbl_root_table_list.tables[i];
+ if (table_desc->pointer) {
ACPI_ERROR((AE_INFO,
"Table [%4.4s] is not invalidated during early boot stage",
- acpi_gbl_root_table_list.tables[i].
- signature.ascii));
+ table_desc->signature.ascii));
}
}
- acpi_gbl_root_table_list.flags |= ACPI_ROOT_ALLOW_RESIZE;
+ if (!acpi_gbl_enable_table_validation) {
+ /*
+ * Now it's safe to do full table validation. We can do deferred
+ * table initilization here once the flag is set.
+ */
+ acpi_gbl_enable_table_validation = TRUE;
+ for (i = 0; i < acpi_gbl_root_table_list.current_table_count;
+ ++i) {
+ table_desc = &acpi_gbl_root_table_list.tables[i];
+ if (!(table_desc->flags & ACPI_TABLE_IS_VERIFIED)) {
+ status =
+ acpi_tb_verify_temp_table(table_desc, NULL,
+ &j);
+ if (ACPI_FAILURE(status)) {
+ acpi_tb_uninstall_table(table_desc);
+ }
+ }
+ }
+ }
+ acpi_gbl_root_table_list.flags |= ACPI_ROOT_ALLOW_RESIZE;
status = acpi_tb_resize_root_table_list();
+ acpi_gbl_root_table_list.flags |= ACPI_ROOT_ORIGIN_ALLOCATED;
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
return_ACPI_STATUS(status);
}
@@ -369,6 +394,10 @@ void acpi_put_table(struct acpi_table_header *table)
ACPI_FUNCTION_TRACE(acpi_put_table);
+ if (!table) {
+ return_VOID;
+ }
+
(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
/* Walk the root table list */
diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c
index b71ce3b817ea..d81f442228b8 100644
--- a/drivers/acpi/acpica/tbxfload.c
+++ b/drivers/acpi/acpica/tbxfload.c
@@ -206,7 +206,7 @@ acpi_status acpi_tb_load_namespace(void)
for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) {
table = &acpi_gbl_root_table_list.tables[i];
- if (!acpi_gbl_root_table_list.tables[i].address ||
+ if (!table->address ||
(!ACPI_COMPARE_NAME(table->signature.ascii, ACPI_SIG_SSDT)
&& !ACPI_COMPARE_NAME(table->signature.ascii,
ACPI_SIG_PSDT)
diff --git a/drivers/acpi/acpica/utdecode.c b/drivers/acpi/acpica/utdecode.c
index 60868309e326..02cd2c2d961a 100644
--- a/drivers/acpi/acpica/utdecode.c
+++ b/drivers/acpi/acpica/utdecode.c
@@ -460,9 +460,11 @@ static const char *acpi_gbl_generic_notify[ACPI_GENERIC_NOTIFY_MAX + 1] = {
/* 09 */ "Device PLD Check",
/* 0A */ "Reserved",
/* 0B */ "System Locality Update",
- /* 0C */ "Shutdown Request",
- /* Reserved in ACPI 6.0 */
- /* 0D */ "System Resource Affinity Update"
+ /* 0C */ "Reserved (was previously Shutdown Request)",
+ /* Reserved in ACPI 6.0 */
+ /* 0D */ "System Resource Affinity Update",
+ /* 0E */ "Heterogeneous Memory Attributes Update"
+ /* ACPI 6.2 */
};
static const char *acpi_gbl_device_notify[5] = {
diff --git a/drivers/acpi/acpica/uthex.c b/drivers/acpi/acpica/uthex.c
index 6600bc257516..fb406daf47fa 100644
--- a/drivers/acpi/acpica/uthex.c
+++ b/drivers/acpi/acpica/uthex.c
@@ -69,8 +69,10 @@ static const char acpi_gbl_hex_to_ascii[] = {
char acpi_ut_hex_to_ascii_char(u64 integer, u32 position)
{
+ u64 index;
- return (acpi_gbl_hex_to_ascii[(integer >> position) & 0xF]);
+ acpi_ut_short_shift_right(integer, position, &index);
+ return (acpi_gbl_hex_to_ascii[index & 0xF]);
}
/*******************************************************************************
diff --git a/drivers/acpi/acpica/utmath.c b/drivers/acpi/acpica/utmath.c
index aa0502d1d019..5f9c680076c4 100644
--- a/drivers/acpi/acpica/utmath.c
+++ b/drivers/acpi/acpica/utmath.c
@@ -47,15 +47,6 @@
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utmath")
-/*
- * Optional support for 64-bit double-precision integer divide. This code
- * is configurable and is implemented in order to support 32-bit kernel
- * environments where a 64-bit double-precision math library is not available.
- *
- * Support for a more normal 64-bit divide/modulo (with check for a divide-
- * by-zero) appears after this optional section of code.
- */
-#ifndef ACPI_USE_NATIVE_DIVIDE
/* Structures used only for 64-bit divide */
typedef struct uint64_struct {
u32 lo;
@@ -69,6 +60,217 @@ typedef union uint64_overlay {
} uint64_overlay;
+/*
+ * Optional support for 64-bit double-precision integer multiply and shift.
+ * This code is configurable and is implemented in order to support 32-bit
+ * kernel environments where a 64-bit double-precision math library is not
+ * available.
+ */
+#ifndef ACPI_USE_NATIVE_MATH64
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_short_multiply
+ *
+ * PARAMETERS: multiplicand - 64-bit multiplicand
+ * multiplier - 32-bit multiplier
+ * out_product - Pointer to where the product is returned
+ *
+ * DESCRIPTION: Perform a short multiply.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_short_multiply(u64 multiplicand, u32 multiplier, u64 *out_product)
+{
+ union uint64_overlay multiplicand_ovl;
+ union uint64_overlay product;
+ u32 carry32;
+
+ ACPI_FUNCTION_TRACE(ut_short_multiply);
+
+ multiplicand_ovl.full = multiplicand;
+
+ /*
+ * The Product is 64 bits, the carry is always 32 bits,
+ * and is generated by the second multiply.
+ */
+ ACPI_MUL_64_BY_32(0, multiplicand_ovl.part.hi, multiplier,
+ product.part.hi, carry32);
+
+ ACPI_MUL_64_BY_32(0, multiplicand_ovl.part.lo, multiplier,
+ product.part.lo, carry32);
+
+ product.part.hi += carry32;
+
+ /* Return only what was requested */
+
+ if (out_product) {
+ *out_product = product.full;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_short_shift_left
+ *
+ * PARAMETERS: operand - 64-bit shift operand
+ * count - 32-bit shift count
+ * out_result - Pointer to where the result is returned
+ *
+ * DESCRIPTION: Perform a short left shift.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_short_shift_left(u64 operand, u32 count, u64 *out_result)
+{
+ union uint64_overlay operand_ovl;
+
+ ACPI_FUNCTION_TRACE(ut_short_shift_left);
+
+ operand_ovl.full = operand;
+
+ if ((count & 63) >= 32) {
+ operand_ovl.part.hi = operand_ovl.part.lo;
+ operand_ovl.part.lo ^= operand_ovl.part.lo;
+ count = (count & 63) - 32;
+ }
+ ACPI_SHIFT_LEFT_64_BY_32(operand_ovl.part.hi,
+ operand_ovl.part.lo, count);
+
+ /* Return only what was requested */
+
+ if (out_result) {
+ *out_result = operand_ovl.full;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_short_shift_right
+ *
+ * PARAMETERS: operand - 64-bit shift operand
+ * count - 32-bit shift count
+ * out_result - Pointer to where the result is returned
+ *
+ * DESCRIPTION: Perform a short right shift.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_short_shift_right(u64 operand, u32 count, u64 *out_result)
+{
+ union uint64_overlay operand_ovl;
+
+ ACPI_FUNCTION_TRACE(ut_short_shift_right);
+
+ operand_ovl.full = operand;
+
+ if ((count & 63) >= 32) {
+ operand_ovl.part.lo = operand_ovl.part.hi;
+ operand_ovl.part.hi ^= operand_ovl.part.hi;
+ count = (count & 63) - 32;
+ }
+ ACPI_SHIFT_RIGHT_64_BY_32(operand_ovl.part.hi,
+ operand_ovl.part.lo, count);
+
+ /* Return only what was requested */
+
+ if (out_result) {
+ *out_result = operand_ovl.full;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+#else
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_short_multiply
+ *
+ * PARAMETERS: See function headers above
+ *
+ * DESCRIPTION: Native version of the ut_short_multiply function.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_short_multiply(u64 multiplicand, u32 multiplier, u64 *out_product)
+{
+
+ ACPI_FUNCTION_TRACE(ut_short_multiply);
+
+ /* Return only what was requested */
+
+ if (out_product) {
+ *out_product = multiplicand * multiplier;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_short_shift_left
+ *
+ * PARAMETERS: See function headers above
+ *
+ * DESCRIPTION: Native version of the ut_short_shift_left function.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_short_shift_left(u64 operand, u32 count, u64 *out_result)
+{
+
+ ACPI_FUNCTION_TRACE(ut_short_shift_left);
+
+ /* Return only what was requested */
+
+ if (out_result) {
+ *out_result = operand << count;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_short_shift_right
+ *
+ * PARAMETERS: See function headers above
+ *
+ * DESCRIPTION: Native version of the ut_short_shift_right function.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_short_shift_right(u64 operand, u32 count, u64 *out_result)
+{
+
+ ACPI_FUNCTION_TRACE(ut_short_shift_right);
+
+ /* Return only what was requested */
+
+ if (out_result) {
+ *out_result = operand >> count;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+#endif
+
+/*
+ * Optional support for 64-bit double-precision integer divide. This code
+ * is configurable and is implemented in order to support 32-bit kernel
+ * environments where a 64-bit double-precision math library is not available.
+ *
+ * Support for a more normal 64-bit divide/modulo (with check for a divide-
+ * by-zero) appears after this optional section of code.
+ */
+#ifndef ACPI_USE_NATIVE_DIVIDE
+
/*******************************************************************************
*
* FUNCTION: acpi_ut_short_divide
@@ -258,6 +460,7 @@ acpi_ut_divide(u64 in_dividend,
}
#else
+
/*******************************************************************************
*
* FUNCTION: acpi_ut_short_divide, acpi_ut_divide
@@ -272,6 +475,7 @@ acpi_ut_divide(u64 in_dividend,
* perform the divide.
*
******************************************************************************/
+
acpi_status
acpi_ut_short_divide(u64 in_dividend,
u32 divisor, u64 *out_quotient, u32 *out_remainder)
diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c
index 443ffad01209..45c78c2adbf0 100644
--- a/drivers/acpi/acpica/utmisc.c
+++ b/drivers/acpi/acpica/utmisc.c
@@ -224,7 +224,7 @@ acpi_ut_create_update_state_and_push(union acpi_operand_object *object,
*
* RETURN: Status
*
- * DESCRIPTION: Walk through a package
+ * DESCRIPTION: Walk through a package, including subpackages
*
******************************************************************************/
@@ -236,8 +236,8 @@ acpi_ut_walk_package_tree(union acpi_operand_object *source_object,
acpi_status status = AE_OK;
union acpi_generic_state *state_list = NULL;
union acpi_generic_state *state;
- u32 this_index;
union acpi_operand_object *this_source_obj;
+ u32 this_index;
ACPI_FUNCTION_TRACE(ut_walk_package_tree);
@@ -251,8 +251,10 @@ acpi_ut_walk_package_tree(union acpi_operand_object *source_object,
/* Get one element of the package */
this_index = state->pkg.index;
- this_source_obj = (union acpi_operand_object *)
+ this_source_obj =
state->pkg.source_object->package.elements[this_index];
+ state->pkg.this_target_obj =
+ &state->pkg.source_object->package.elements[this_index];
/*
* Check for:
@@ -339,6 +341,8 @@ acpi_ut_walk_package_tree(union acpi_operand_object *source_object,
/* We should never get here */
+ ACPI_ERROR((AE_INFO, "State list did not terminate correctly"));
+
return_ACPI_STATUS(AE_AML_INTERNAL);
}
diff --git a/drivers/acpi/acpica/utobject.c b/drivers/acpi/acpica/utobject.c
index 64e6641bfe82..cb3db9fed50d 100644
--- a/drivers/acpi/acpica/utobject.c
+++ b/drivers/acpi/acpica/utobject.c
@@ -483,6 +483,11 @@ acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
/* A namespace node should never get here */
+ ACPI_ERROR((AE_INFO,
+ "Received a namespace node [%4.4s] "
+ "where an operand object is required",
+ ACPI_CAST_PTR(struct acpi_namespace_node,
+ internal_object)->name.ascii));
return_ACPI_STATUS(AE_AML_INTERNAL);
}
diff --git a/drivers/acpi/acpica/utownerid.c b/drivers/acpi/acpica/utownerid.c
index c82399f9b456..1b3ee74a87eb 100644
--- a/drivers/acpi/acpica/utownerid.c
+++ b/drivers/acpi/acpica/utownerid.c
@@ -104,13 +104,19 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id *owner_id)
break;
}
- if (!(acpi_gbl_owner_id_mask[j] & (1 << k))) {
+ /*
+ * Note: the u32 cast ensures that 1 is stored as a unsigned
+ * integer. Omitting the cast may result in 1 being stored as an
+ * int. Some compilers or runtime error detection may flag this as
+ * an error.
+ */
+ if (!(acpi_gbl_owner_id_mask[j] & ((u32)1 << k))) {
/*
* Found a free ID. The actual ID is the bit index plus one,
* making zero an invalid Owner ID. Save this as the last ID
* allocated and update the global ID mask.
*/
- acpi_gbl_owner_id_mask[j] |= (1 << k);
+ acpi_gbl_owner_id_mask[j] |= ((u32)1 << k);
acpi_gbl_last_owner_id_index = (u8)j;
acpi_gbl_next_owner_id_offset = (u8)(k + 1);
@@ -201,7 +207,7 @@ void acpi_ut_release_owner_id(acpi_owner_id *owner_id_ptr)
/* Decode ID to index/offset pair */
index = ACPI_DIV_32(owner_id);
- bit = 1 << ACPI_MOD_32(owner_id);
+ bit = (u32)1 << ACPI_MOD_32(owner_id);
/* Free the owner ID only if it is valid */
diff --git a/drivers/acpi/acpica/utprint.c b/drivers/acpi/acpica/utprint.c
index 7e6e1ae6140f..c008589b41bd 100644
--- a/drivers/acpi/acpica/utprint.c
+++ b/drivers/acpi/acpica/utprint.c
@@ -176,7 +176,7 @@ const char *acpi_ut_scan_number(const char *string, u64 *number_ptr)
u64 number = 0;
while (isdigit((int)*string)) {
- number *= 10;
+ acpi_ut_short_multiply(number, 10, &number);
number += *(string++) - '0';
}
@@ -286,7 +286,7 @@ static char *acpi_ut_format_number(char *string,
/* Generate full string in reverse order */
pos = acpi_ut_put_number(reversed_string, number, base, upper);
- i = ACPI_PTR_DIFF(pos, reversed_string);
+ i = (s32)ACPI_PTR_DIFF(pos, reversed_string);
/* Printing 100 using %2d gives "100", not "00" */
@@ -475,7 +475,7 @@ int vsnprintf(char *string, acpi_size size, const char *format, va_list args)
if (!s) {
s = "<NULL>";
}
- length = acpi_ut_bound_string_length(s, precision);
+ length = (s32)acpi_ut_bound_string_length(s, precision);
if (!(type & ACPI_FORMAT_LEFT)) {
while (length < width--) {
pos =
@@ -579,7 +579,7 @@ int vsnprintf(char *string, acpi_size size, const char *format, va_list args)
}
}
- return (ACPI_PTR_DIFF(pos, string));
+ return ((int)ACPI_PTR_DIFF(pos, string));
}
/*******************************************************************************
diff --git a/drivers/acpi/acpica/utresdecode.c b/drivers/acpi/acpica/utresdecode.c
new file mode 100644
index 000000000000..e15a2538558b
--- /dev/null
+++ b/drivers/acpi/acpica/utresdecode.c
@@ -0,0 +1,315 @@
+/*******************************************************************************
+ *
+ * Module Name: utresdecode - Resource descriptor keyword strings
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2017, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acresrc.h"
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utresdecode")
+
+#if defined (ACPI_DEBUG_OUTPUT) || \
+ defined (ACPI_DISASSEMBLER) || \
+ defined (ACPI_DEBUGGER)
+/*
+ * Strings used to decode resource descriptors.
+ * Used by both the disassembler and the debugger resource dump routines
+ */
+const char *acpi_gbl_bm_decode[] = {
+ "NotBusMaster",
+ "BusMaster"
+};
+
+const char *acpi_gbl_config_decode[] = {
+ "0 - Good Configuration",
+ "1 - Acceptable Configuration",
+ "2 - Suboptimal Configuration",
+ "3 - ***Invalid Configuration***",
+};
+
+const char *acpi_gbl_consume_decode[] = {
+ "ResourceProducer",
+ "ResourceConsumer"
+};
+
+const char *acpi_gbl_dec_decode[] = {
+ "PosDecode",
+ "SubDecode"
+};
+
+const char *acpi_gbl_he_decode[] = {
+ "Level",
+ "Edge"
+};
+
+const char *acpi_gbl_io_decode[] = {
+ "Decode10",
+ "Decode16"
+};
+
+const char *acpi_gbl_ll_decode[] = {
+ "ActiveHigh",
+ "ActiveLow",
+ "ActiveBoth",
+ "Reserved"
+};
+
+const char *acpi_gbl_max_decode[] = {
+ "MaxNotFixed",
+ "MaxFixed"
+};
+
+const char *acpi_gbl_mem_decode[] = {
+ "NonCacheable",
+ "Cacheable",
+ "WriteCombining",
+ "Prefetchable"
+};
+
+const char *acpi_gbl_min_decode[] = {
+ "MinNotFixed",
+ "MinFixed"
+};
+
+const char *acpi_gbl_mtp_decode[] = {
+ "AddressRangeMemory",
+ "AddressRangeReserved",
+ "AddressRangeACPI",
+ "AddressRangeNVS"
+};
+
+const char *acpi_gbl_rng_decode[] = {
+ "InvalidRanges",
+ "NonISAOnlyRanges",
+ "ISAOnlyRanges",
+ "EntireRange"
+};
+
+const char *acpi_gbl_rw_decode[] = {
+ "ReadOnly",
+ "ReadWrite"
+};
+
+const char *acpi_gbl_shr_decode[] = {
+ "Exclusive",
+ "Shared",
+ "ExclusiveAndWake", /* ACPI 5.0 */
+ "SharedAndWake" /* ACPI 5.0 */
+};
+
+const char *acpi_gbl_siz_decode[] = {
+ "Transfer8",
+ "Transfer8_16",
+ "Transfer16",
+ "InvalidSize"
+};
+
+const char *acpi_gbl_trs_decode[] = {
+ "DenseTranslation",
+ "SparseTranslation"
+};
+
+const char *acpi_gbl_ttp_decode[] = {
+ "TypeStatic",
+ "TypeTranslation"
+};
+
+const char *acpi_gbl_typ_decode[] = {
+ "Compatibility",
+ "TypeA",
+ "TypeB",
+ "TypeF"
+};
+
+const char *acpi_gbl_ppc_decode[] = {
+ "PullDefault",
+ "PullUp",
+ "PullDown",
+ "PullNone"
+};
+
+const char *acpi_gbl_ior_decode[] = {
+ "IoRestrictionNone",
+ "IoRestrictionInputOnly",
+ "IoRestrictionOutputOnly",
+ "IoRestrictionNoneAndPreserve"
+};
+
+const char *acpi_gbl_dts_decode[] = {
+ "Width8bit",
+ "Width16bit",
+ "Width32bit",
+ "Width64bit",
+ "Width128bit",
+ "Width256bit",
+};
+
+/* GPIO connection type */
+
+const char *acpi_gbl_ct_decode[] = {
+ "Interrupt",
+ "I/O"
+};
+
+/* Serial bus type */
+
+const char *acpi_gbl_sbt_decode[] = {
+ "/* UNKNOWN serial bus type */",
+ "I2C",
+ "SPI",
+ "UART"
+};
+
+/* I2C serial bus access mode */
+
+const char *acpi_gbl_am_decode[] = {
+ "AddressingMode7Bit",
+ "AddressingMode10Bit"
+};
+
+/* I2C serial bus slave mode */
+
+const char *acpi_gbl_sm_decode[] = {
+ "ControllerInitiated",
+ "DeviceInitiated"
+};
+
+/* SPI serial bus wire mode */
+
+const char *acpi_gbl_wm_decode[] = {
+ "FourWireMode",
+ "ThreeWireMode"
+};
+
+/* SPI serial clock phase */
+
+const char *acpi_gbl_cph_decode[] = {
+ "ClockPhaseFirst",
+ "ClockPhaseSecond"
+};
+
+/* SPI serial bus clock polarity */
+
+const char *acpi_gbl_cpo_decode[] = {
+ "ClockPolarityLow",
+ "ClockPolarityHigh"
+};
+
+/* SPI serial bus device polarity */
+
+const char *acpi_gbl_dp_decode[] = {
+ "PolarityLow",
+ "PolarityHigh"
+};
+
+/* UART serial bus endian */
+
+const char *acpi_gbl_ed_decode[] = {
+ "LittleEndian",
+ "BigEndian"
+};
+
+/* UART serial bus bits per byte */
+
+const char *acpi_gbl_bpb_decode[] = {
+ "DataBitsFive",
+ "DataBitsSix",
+ "DataBitsSeven",
+ "DataBitsEight",
+ "DataBitsNine",
+ "/* UNKNOWN Bits per byte */",
+ "/* UNKNOWN Bits per byte */",
+ "/* UNKNOWN Bits per byte */"
+};
+
+/* UART serial bus stop bits */
+
+const char *acpi_gbl_sb_decode[] = {
+ "StopBitsZero",
+ "StopBitsOne",
+ "StopBitsOnePlusHalf",
+ "StopBitsTwo"
+};
+
+/* UART serial bus flow control */
+
+const char *acpi_gbl_fc_decode[] = {
+ "FlowControlNone",
+ "FlowControlHardware",
+ "FlowControlXON",
+ "/* UNKNOWN flow control keyword */"
+};
+
+/* UART serial bus parity type */
+
+const char *acpi_gbl_pt_decode[] = {
+ "ParityTypeNone",
+ "ParityTypeEven",
+ "ParityTypeOdd",
+ "ParityTypeMark",
+ "ParityTypeSpace",
+ "/* UNKNOWN parity keyword */",
+ "/* UNKNOWN parity keyword */",
+ "/* UNKNOWN parity keyword */"
+};
+
+/* pin_config type */
+
+const char *acpi_gbl_ptyp_decode[] = {
+ "Default",
+ "Bias Pull-up",
+ "Bias Pull-down",
+ "Bias Default",
+ "Bias Disable",
+ "Bias High Impedance",
+ "Bias Bus Hold",
+ "Drive Open Drain",
+ "Drive Open Source",
+ "Drive Push Pull",
+ "Drive Strength",
+ "Slew Rate",
+ "Input Debounce",
+ "Input Schmitt Trigger",
+};
+
+#endif
diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c
index ff096d9755b9..f9801d13547f 100644
--- a/drivers/acpi/acpica/utresrc.c
+++ b/drivers/acpi/acpica/utresrc.c
@@ -48,251 +48,6 @@
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utresrc")
-#if defined(ACPI_DEBUG_OUTPUT) || defined (ACPI_DISASSEMBLER) || defined (ACPI_DEBUGGER)
-/*
- * Strings used to decode resource descriptors.
- * Used by both the disassembler and the debugger resource dump routines
- */
-const char *acpi_gbl_bm_decode[] = {
- "NotBusMaster",
- "BusMaster"
-};
-
-const char *acpi_gbl_config_decode[] = {
- "0 - Good Configuration",
- "1 - Acceptable Configuration",
- "2 - Suboptimal Configuration",
- "3 - ***Invalid Configuration***",
-};
-
-const char *acpi_gbl_consume_decode[] = {
- "ResourceProducer",
- "ResourceConsumer"
-};
-
-const char *acpi_gbl_dec_decode[] = {
- "PosDecode",
- "SubDecode"
-};
-
-const char *acpi_gbl_he_decode[] = {
- "Level",
- "Edge"
-};
-
-const char *acpi_gbl_io_decode[] = {
- "Decode10",
- "Decode16"
-};
-
-const char *acpi_gbl_ll_decode[] = {
- "ActiveHigh",
- "ActiveLow",
- "ActiveBoth",
- "Reserved"
-};
-
-const char *acpi_gbl_max_decode[] = {
- "MaxNotFixed",
- "MaxFixed"
-};
-
-const char *acpi_gbl_mem_decode[] = {
- "NonCacheable",
- "Cacheable",
- "WriteCombining",
- "Prefetchable"
-};
-
-const char *acpi_gbl_min_decode[] = {
- "MinNotFixed",
- "MinFixed"
-};
-
-const char *acpi_gbl_mtp_decode[] = {
- "AddressRangeMemory",
- "AddressRangeReserved",
- "AddressRangeACPI",
- "AddressRangeNVS"
-};
-
-const char *acpi_gbl_rng_decode[] = {
- "InvalidRanges",
- "NonISAOnlyRanges",
- "ISAOnlyRanges",
- "EntireRange"
-};
-
-const char *acpi_gbl_rw_decode[] = {
- "ReadOnly",
- "ReadWrite"
-};
-
-const char *acpi_gbl_shr_decode[] = {
- "Exclusive",
- "Shared",
- "ExclusiveAndWake", /* ACPI 5.0 */
- "SharedAndWake" /* ACPI 5.0 */
-};
-
-const char *acpi_gbl_siz_decode[] = {
- "Transfer8",
- "Transfer8_16",
- "Transfer16",
- "InvalidSize"
-};
-
-const char *acpi_gbl_trs_decode[] = {
- "DenseTranslation",
- "SparseTranslation"
-};
-
-const char *acpi_gbl_ttp_decode[] = {
- "TypeStatic",
- "TypeTranslation"
-};
-
-const char *acpi_gbl_typ_decode[] = {
- "Compatibility",
- "TypeA",
- "TypeB",
- "TypeF"
-};
-
-const char *acpi_gbl_ppc_decode[] = {
- "PullDefault",
- "PullUp",
- "PullDown",
- "PullNone"
-};
-
-const char *acpi_gbl_ior_decode[] = {
- "IoRestrictionNone",
- "IoRestrictionInputOnly",
- "IoRestrictionOutputOnly",
- "IoRestrictionNoneAndPreserve"
-};
-
-const char *acpi_gbl_dts_decode[] = {
- "Width8bit",
- "Width16bit",
- "Width32bit",
- "Width64bit",
- "Width128bit",
- "Width256bit",
-};
-
-/* GPIO connection type */
-
-const char *acpi_gbl_ct_decode[] = {
- "Interrupt",
- "I/O"
-};
-
-/* Serial bus type */
-
-const char *acpi_gbl_sbt_decode[] = {
- "/* UNKNOWN serial bus type */",
- "I2C",
- "SPI",
- "UART"
-};
-
-/* I2C serial bus access mode */
-
-const char *acpi_gbl_am_decode[] = {
- "AddressingMode7Bit",
- "AddressingMode10Bit"
-};
-
-/* I2C serial bus slave mode */
-
-const char *acpi_gbl_sm_decode[] = {
- "ControllerInitiated",
- "DeviceInitiated"
-};
-
-/* SPI serial bus wire mode */
-
-const char *acpi_gbl_wm_decode[] = {
- "FourWireMode",
- "ThreeWireMode"
-};
-
-/* SPI serial clock phase */
-
-const char *acpi_gbl_cph_decode[] = {
- "ClockPhaseFirst",
- "ClockPhaseSecond"
-};
-
-/* SPI serial bus clock polarity */
-
-const char *acpi_gbl_cpo_decode[] = {
- "ClockPolarityLow",
- "ClockPolarityHigh"
-};
-
-/* SPI serial bus device polarity */
-
-const char *acpi_gbl_dp_decode[] = {
- "PolarityLow",
- "PolarityHigh"
-};
-
-/* UART serial bus endian */
-
-const char *acpi_gbl_ed_decode[] = {
- "LittleEndian",
- "BigEndian"
-};
-
-/* UART serial bus bits per byte */
-
-const char *acpi_gbl_bpb_decode[] = {
- "DataBitsFive",
- "DataBitsSix",
- "DataBitsSeven",
- "DataBitsEight",
- "DataBitsNine",
- "/* UNKNOWN Bits per byte */",
- "/* UNKNOWN Bits per byte */",
- "/* UNKNOWN Bits per byte */"
-};
-
-/* UART serial bus stop bits */
-
-const char *acpi_gbl_sb_decode[] = {
- "StopBitsZero",
- "StopBitsOne",
- "StopBitsOnePlusHalf",
- "StopBitsTwo"
-};
-
-/* UART serial bus flow control */
-
-const char *acpi_gbl_fc_decode[] = {
- "FlowControlNone",
- "FlowControlHardware",
- "FlowControlXON",
- "/* UNKNOWN flow control keyword */"
-};
-
-/* UART serial bus parity type */
-
-const char *acpi_gbl_pt_decode[] = {
- "ParityTypeNone",
- "ParityTypeEven",
- "ParityTypeOdd",
- "ParityTypeMark",
- "ParityTypeSpace",
- "/* UNKNOWN parity keyword */",
- "/* UNKNOWN parity keyword */",
- "/* UNKNOWN parity keyword */"
-};
-
-#endif
-
/*
* Base sizes of the raw AML resource descriptors, indexed by resource type.
* Zero indicates a reserved (and therefore invalid) resource type.
@@ -332,8 +87,12 @@ const u8 acpi_gbl_resource_aml_sizes[] = {
ACPI_AML_SIZE_LARGE(struct aml_resource_address64),
ACPI_AML_SIZE_LARGE(struct aml_resource_extended_address64),
ACPI_AML_SIZE_LARGE(struct aml_resource_gpio),
- 0,
+ ACPI_AML_SIZE_LARGE(struct aml_resource_pin_function),
ACPI_AML_SIZE_LARGE(struct aml_resource_common_serialbus),
+ ACPI_AML_SIZE_LARGE(struct aml_resource_pin_config),
+ ACPI_AML_SIZE_LARGE(struct aml_resource_pin_group),
+ ACPI_AML_SIZE_LARGE(struct aml_resource_pin_group_function),
+ ACPI_AML_SIZE_LARGE(struct aml_resource_pin_group_config),
};
const u8 acpi_gbl_resource_aml_serial_bus_sizes[] = {
@@ -384,8 +143,12 @@ static const u8 acpi_gbl_resource_types[] = {
ACPI_VARIABLE_LENGTH, /* 0A Qword* address */
ACPI_FIXED_LENGTH, /* 0B Extended* address */
ACPI_VARIABLE_LENGTH, /* 0C Gpio* */
- 0,
- ACPI_VARIABLE_LENGTH /* 0E *serial_bus */
+ ACPI_VARIABLE_LENGTH, /* 0D pin_function */
+ ACPI_VARIABLE_LENGTH, /* 0E *serial_bus */
+ ACPI_VARIABLE_LENGTH, /* 0F pin_config */
+ ACPI_VARIABLE_LENGTH, /* 10 pin_group */
+ ACPI_VARIABLE_LENGTH, /* 11 pin_group_function */
+ ACPI_VARIABLE_LENGTH, /* 12 pin_group_config */
};
/*******************************************************************************
@@ -474,6 +237,13 @@ acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state,
return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
}
+ /*
+ * Don't attempt to perform any validation on the 2nd byte.
+ * Although all known ASL compilers insert a zero for the 2nd
+ * byte, it can also be a checksum (as per the ACPI spec),
+ * and this is occasionally seen in the field. July 2017.
+ */
+
/* Return the pointer to the end_tag if requested */
if (!user_function) {
diff --git a/drivers/acpi/acpica/utstate.c b/drivers/acpi/acpica/utstate.c
index 64308c304ade..eafabcd2fada 100644
--- a/drivers/acpi/acpica/utstate.c
+++ b/drivers/acpi/acpica/utstate.c
@@ -226,7 +226,7 @@ union acpi_generic_state *acpi_ut_create_update_state(union acpi_operand_object
union acpi_generic_state *acpi_ut_create_pkg_state(void *internal_object,
void *external_object,
- u16 index)
+ u32 index)
{
union acpi_generic_state *state;
diff --git a/drivers/acpi/acpica/utstrtoul64.c b/drivers/acpi/acpica/utstrtoul64.c
index f42be01d99fd..9633ee142855 100644
--- a/drivers/acpi/acpica/utstrtoul64.c
+++ b/drivers/acpi/acpica/utstrtoul64.c
@@ -276,8 +276,8 @@ static u64 acpi_ut_strtoul_base10(char *string, u32 flags)
/* Convert and insert (add) the decimal digit */
- next_value =
- (return_value * 10) + (ascii_digit - ACPI_ASCII_ZERO);
+ acpi_ut_short_multiply(return_value, 10, &next_value);
+ next_value += (ascii_digit - ACPI_ASCII_ZERO);
/* Check for overflow (32 or 64 bit) - return current converted value */
@@ -335,9 +335,8 @@ static u64 acpi_ut_strtoul_base16(char *string, u32 flags)
/* Convert and insert the hex digit */
- return_value =
- (return_value << 4) |
- acpi_ut_ascii_char_to_hex(ascii_digit);
+ acpi_ut_short_shift_left(return_value, 4, &return_value);
+ return_value |= acpi_ut_ascii_char_to_hex(ascii_digit);
string++;
valid_digits++;
diff --git a/drivers/acpi/acpica/uttrack.c b/drivers/acpi/acpica/uttrack.c
index 9a07a42cae34..3c8de88ecbd5 100644
--- a/drivers/acpi/acpica/uttrack.c
+++ b/drivers/acpi/acpica/uttrack.c
@@ -591,6 +591,10 @@ void acpi_ut_dump_allocations(u32 component, const char *module)
return_VOID;
}
+ if (!acpi_gbl_global_list) {
+ goto exit;
+ }
+
element = acpi_gbl_global_list->list_head;
while (element) {
if ((element->component & component) &&
@@ -602,7 +606,7 @@ void acpi_ut_dump_allocations(u32 component, const char *module)
if (element->size <
sizeof(struct acpi_common_descriptor)) {
- acpi_os_printf("%p Length 0x%04X %9.9s-%u "
+ acpi_os_printf("%p Length 0x%04X %9.9s-%4.4u "
"[Not a Descriptor - too small]\n",
descriptor, element->size,
element->module, element->line);
@@ -612,7 +616,7 @@ void acpi_ut_dump_allocations(u32 component, const char *module)
if (ACPI_GET_DESCRIPTOR_TYPE(descriptor) !=
ACPI_DESC_TYPE_CACHED) {
acpi_os_printf
- ("%p Length 0x%04X %9.9s-%u [%s] ",
+ ("%p Length 0x%04X %9.9s-%4.4u [%s] ",
descriptor, element->size,
element->module, element->line,
acpi_ut_get_descriptor_name
@@ -705,6 +709,7 @@ void acpi_ut_dump_allocations(u32 component, const char *module)
element = element->next;
}
+exit:
(void)acpi_ut_release_mutex(ACPI_MTX_MEMORY);
/* Print summary */
diff --git a/drivers/acpi/acpica/utxfmutex.c b/drivers/acpi/acpica/utxfmutex.c
index c016211c35ae..0b85f113f726 100644
--- a/drivers/acpi/acpica/utxfmutex.c
+++ b/drivers/acpi/acpica/utxfmutex.c
@@ -151,6 +151,8 @@ acpi_acquire_mutex(acpi_handle handle, acpi_string pathname, u16 timeout)
return (status);
}
+ACPI_EXPORT_SYMBOL(acpi_acquire_mutex)
+
/*******************************************************************************
*
* FUNCTION: acpi_release_mutex
@@ -167,7 +169,6 @@ acpi_acquire_mutex(acpi_handle handle, acpi_string pathname, u16 timeout)
* not both.
*
******************************************************************************/
-
acpi_status acpi_release_mutex(acpi_handle handle, acpi_string pathname)
{
acpi_status status;
@@ -185,3 +186,5 @@ acpi_status acpi_release_mutex(acpi_handle handle, acpi_string pathname)
acpi_os_release_mutex(mutex_obj->mutex.os_mutex);
return (AE_OK);
}
+
+ACPI_EXPORT_SYMBOL(acpi_release_mutex)
diff --git a/drivers/acpi/apei/Kconfig b/drivers/acpi/apei/Kconfig
index b0140c8fc733..de14d49a5c90 100644
--- a/drivers/acpi/apei/Kconfig
+++ b/drivers/acpi/apei/Kconfig
@@ -39,6 +39,21 @@ config ACPI_APEI_PCIEAER
PCIe AER errors may be reported via APEI firmware first mode.
Turn on this option to enable the corresponding support.
+config ACPI_APEI_SEA
+ bool "APEI Synchronous External Abort logging/recovering support"
+ depends on ARM64 && ACPI_APEI_GHES
+ default y
+ help
+ This option should be enabled if the system supports
+ firmware first handling of SEA (Synchronous External Abort).
+ SEA happens with certain faults of data abort or instruction
+ abort synchronous exceptions on ARMv8 systems. If a system
+ supports firmware first handling of SEA, the platform analyzes
+ and handles hardware error notifications from SEA, and it may then
+ form a HW error record for the OS to parse and handle. This
+ option allows the OS to look for such hardware error record, and
+ take appropriate action.
+
config ACPI_APEI_MEMORY_FAILURE
bool "APEI memory error recovering support"
depends on ACPI_APEI && MEMORY_FAILURE
diff --git a/drivers/acpi/apei/apei-internal.h b/drivers/acpi/apei/apei-internal.h
index 6e9f14c0a71b..cb4126051f62 100644
--- a/drivers/acpi/apei/apei-internal.h
+++ b/drivers/acpi/apei/apei-internal.h
@@ -120,11 +120,6 @@ int apei_exec_collect_resources(struct apei_exec_context *ctx,
struct dentry;
struct dentry *apei_get_debugfs_dir(void);
-#define apei_estatus_for_each_section(estatus, section) \
- for (section = (struct acpi_hest_generic_data *)(estatus + 1); \
- (void *)section - (void *)estatus < estatus->data_length; \
- section = (void *)(section+1) + section->error_data_length)
-
static inline u32 cper_estatus_len(struct acpi_hest_generic_status *estatus)
{
if (estatus->raw_data_length)
diff --git a/drivers/acpi/apei/einj.c b/drivers/acpi/apei/einj.c
index ec50c32ea3da..b38737c83a24 100644
--- a/drivers/acpi/apei/einj.c
+++ b/drivers/acpi/apei/einj.c
@@ -281,7 +281,7 @@ static struct acpi_generic_address *einj_get_trigger_parameter_region(
((char *)trigger_tab + sizeof(struct acpi_einj_trigger));
for (i = 0; i < trigger_tab->entry_count; i++) {
if (entry->action == ACPI_EINJ_TRIGGER_ERROR &&
- entry->instruction == ACPI_EINJ_WRITE_REGISTER_VALUE &&
+ entry->instruction <= ACPI_EINJ_WRITE_REGISTER_VALUE &&
entry->register_region.space_id ==
ACPI_ADR_SPACE_SYSTEM_MEMORY &&
(entry->register_region.address & param2) == (param1 & param2))
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index d0855c09f32f..3c3a37b8503b 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -45,10 +45,14 @@
#include <linux/aer.h>
#include <linux/nmi.h>
#include <linux/sched/clock.h>
+#include <linux/uuid.h>
+#include <linux/ras.h>
+#include <acpi/actbl1.h>
#include <acpi/ghes.h>
#include <acpi/apei.h>
#include <asm/tlbflush.h>
+#include <ras/ras_event.h>
#include "apei-internal.h"
@@ -80,6 +84,11 @@
((struct acpi_hest_generic_status *) \
((struct ghes_estatus_node *)(estatus_node) + 1))
+static inline bool is_hest_type_generic_v2(struct ghes *ghes)
+{
+ return ghes->generic->header.type == ACPI_HEST_TYPE_GENERIC_ERROR_V2;
+}
+
/*
* This driver isn't really modular, however for the time being,
* continuing to use module_param is the easiest way to remain
@@ -89,14 +98,14 @@ bool ghes_disable;
module_param_named(disable, ghes_disable, bool, 0);
/*
- * All error sources notified with SCI shares one notifier function,
- * so they need to be linked and checked one by one. This is applied
- * to NMI too.
+ * All error sources notified with HED (Hardware Error Device) share a
+ * single notifier callback, so they need to be linked and checked one
+ * by one. This holds true for NMI too.
*
* RCU is used for these lists, so ghes_list_mutex is only used for
* list changing, not for traversing.
*/
-static LIST_HEAD(ghes_sci);
+static LIST_HEAD(ghes_hed);
static DEFINE_MUTEX(ghes_list_mutex);
/*
@@ -110,11 +119,7 @@ static DEFINE_MUTEX(ghes_list_mutex);
* Two virtual pages are used, one for IRQ/PROCESS context, the other for
* NMI context (optionally).
*/
-#ifdef CONFIG_HAVE_ACPI_APEI_NMI
#define GHES_IOREMAP_PAGES 2
-#else
-#define GHES_IOREMAP_PAGES 1
-#endif
#define GHES_IOREMAP_IRQ_PAGE(base) (base)
#define GHES_IOREMAP_NMI_PAGE(base) ((base) + PAGE_SIZE)
@@ -133,6 +138,8 @@ static unsigned long ghes_estatus_pool_size_request;
static struct ghes_estatus_cache *ghes_estatus_caches[GHES_ESTATUS_CACHES_SIZE];
static atomic_t ghes_estatus_cache_alloced;
+static int ghes_panic_timeout __read_mostly = 30;
+
static int ghes_ioremap_init(void)
{
ghes_ioremap_area = __get_vm_area(PAGE_SIZE * GHES_IOREMAP_PAGES,
@@ -153,10 +160,14 @@ static void ghes_ioremap_exit(void)
static void __iomem *ghes_ioremap_pfn_nmi(u64 pfn)
{
unsigned long vaddr;
+ phys_addr_t paddr;
+ pgprot_t prot;
vaddr = (unsigned long)GHES_IOREMAP_NMI_PAGE(ghes_ioremap_area->addr);
- ioremap_page_range(vaddr, vaddr + PAGE_SIZE,
- pfn << PAGE_SHIFT, PAGE_KERNEL);
+
+ paddr = pfn << PAGE_SHIFT;
+ prot = arch_apei_get_mem_attribute(paddr);
+ ioremap_page_range(vaddr, vaddr + PAGE_SIZE, paddr, prot);
return (void __iomem *)vaddr;
}
@@ -240,6 +251,16 @@ static int ghes_estatus_pool_expand(unsigned long len)
return 0;
}
+static int map_gen_v2(struct ghes *ghes)
+{
+ return apei_map_generic_address(&ghes->generic_v2->read_ack_register);
+}
+
+static void unmap_gen_v2(struct ghes *ghes)
+{
+ apei_unmap_generic_address(&ghes->generic_v2->read_ack_register);
+}
+
static struct ghes *ghes_new(struct acpi_hest_generic *generic)
{
struct ghes *ghes;
@@ -249,10 +270,17 @@ static struct ghes *ghes_new(struct acpi_hest_generic *generic)
ghes = kzalloc(sizeof(*ghes), GFP_KERNEL);
if (!ghes)
return ERR_PTR(-ENOMEM);
+
ghes->generic = generic;
+ if (is_hest_type_generic_v2(ghes)) {
+ rc = map_gen_v2(ghes);
+ if (rc)
+ goto err_free;
+ }
+
rc = apei_map_generic_address(&generic->error_status_address);
if (rc)
- goto err_free;
+ goto err_unmap_read_ack_addr;
error_block_length = generic->error_block_length;
if (error_block_length > GHES_ESTATUS_MAX_SIZE) {
pr_warning(FW_WARN GHES_PFX
@@ -264,13 +292,16 @@ static struct ghes *ghes_new(struct acpi_hest_generic *generic)
ghes->estatus = kmalloc(error_block_length, GFP_KERNEL);
if (!ghes->estatus) {
rc = -ENOMEM;
- goto err_unmap;
+ goto err_unmap_status_addr;
}
return ghes;
-err_unmap:
+err_unmap_status_addr:
apei_unmap_generic_address(&generic->error_status_address);
+err_unmap_read_ack_addr:
+ if (is_hest_type_generic_v2(ghes))
+ unmap_gen_v2(ghes);
err_free:
kfree(ghes);
return ERR_PTR(rc);
@@ -280,6 +311,8 @@ static void ghes_fini(struct ghes *ghes)
{
kfree(ghes->estatus);
apei_unmap_generic_address(&ghes->generic->error_status_address);
+ if (is_hest_type_generic_v2(ghes))
+ unmap_gen_v2(ghes);
}
static inline int ghes_severity(int severity)
@@ -400,8 +433,7 @@ static void ghes_handle_memory_failure(struct acpi_hest_generic_data *gdata, int
unsigned long pfn;
int flags = -1;
int sec_sev = ghes_severity(gdata->error_severity);
- struct cper_sec_mem_err *mem_err;
- mem_err = (struct cper_sec_mem_err *)(gdata + 1);
+ struct cper_sec_mem_err *mem_err = acpi_hest_get_payload(gdata);
if (!(mem_err->validation_bits & CPER_MEM_VALID_PA))
return;
@@ -431,24 +463,32 @@ static void ghes_do_proc(struct ghes *ghes,
{
int sev, sec_sev;
struct acpi_hest_generic_data *gdata;
+ guid_t *sec_type;
+ guid_t *fru_id = &NULL_UUID_LE;
+ char *fru_text = "";
sev = ghes_severity(estatus->error_severity);
apei_estatus_for_each_section(estatus, gdata) {
+ sec_type = (guid_t *)gdata->section_type;
sec_sev = ghes_severity(gdata->error_severity);
- if (!uuid_le_cmp(*(uuid_le *)gdata->section_type,
- CPER_SEC_PLATFORM_MEM)) {
- struct cper_sec_mem_err *mem_err;
- mem_err = (struct cper_sec_mem_err *)(gdata+1);
+ if (gdata->validation_bits & CPER_SEC_VALID_FRU_ID)
+ fru_id = (guid_t *)gdata->fru_id;
+
+ if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT)
+ fru_text = gdata->fru_text;
+
+ if (guid_equal(sec_type, &CPER_SEC_PLATFORM_MEM)) {
+ struct cper_sec_mem_err *mem_err = acpi_hest_get_payload(gdata);
+
ghes_edac_report_mem_error(ghes, sev, mem_err);
arch_apei_report_mem_error(sev, mem_err);
ghes_handle_memory_failure(gdata, sev);
}
#ifdef CONFIG_ACPI_APEI_PCIEAER
- else if (!uuid_le_cmp(*(uuid_le *)gdata->section_type,
- CPER_SEC_PCIE)) {
- struct cper_sec_pcie *pcie_err;
- pcie_err = (struct cper_sec_pcie *)(gdata+1);
+ else if (guid_equal(sec_type, &CPER_SEC_PCIE)) {
+ struct cper_sec_pcie *pcie_err = acpi_hest_get_payload(gdata);
+
if (sev == GHES_SEV_RECOVERABLE &&
sec_sev == GHES_SEV_RECOVERABLE &&
pcie_err->validation_bits & CPER_PCIE_VALID_DEVICE_ID &&
@@ -477,6 +517,17 @@ static void ghes_do_proc(struct ghes *ghes,
}
#endif
+ else if (guid_equal(sec_type, &CPER_SEC_PROC_ARM)) {
+ struct cper_sec_proc_arm *err = acpi_hest_get_payload(gdata);
+
+ log_arm_hw_error(err);
+ } else {
+ void *err = acpi_hest_get_payload(gdata);
+
+ log_non_standard_event(sec_type, fru_id, fru_text,
+ sec_sev, err,
+ gdata->error_data_length);
+ }
}
}
@@ -649,6 +700,31 @@ static void ghes_estatus_cache_add(
rcu_read_unlock();
}
+static int ghes_ack_error(struct acpi_hest_generic_v2 *gv2)
+{
+ int rc;
+ u64 val = 0;
+
+ rc = apei_read(&val, &gv2->read_ack_register);
+ if (rc)
+ return rc;
+
+ val &= gv2->read_ack_preserve << gv2->read_ack_register.bit_offset;
+ val |= gv2->read_ack_write << gv2->read_ack_register.bit_offset;
+
+ return apei_write(val, &gv2->read_ack_register);
+}
+
+static void __ghes_panic(struct ghes *ghes)
+{
+ __ghes_print_estatus(KERN_EMERG, ghes->generic, ghes->estatus);
+
+ /* reboot to log the error! */
+ if (!panic_timeout)
+ panic_timeout = ghes_panic_timeout;
+ panic("Fatal hardware error!");
+}
+
static int ghes_proc(struct ghes *ghes)
{
int rc;
@@ -656,13 +732,30 @@ static int ghes_proc(struct ghes *ghes)
rc = ghes_read_estatus(ghes, 0);
if (rc)
goto out;
+
+ if (ghes_severity(ghes->estatus->error_severity) >= GHES_SEV_PANIC) {
+ __ghes_panic(ghes);
+ }
+
if (!ghes_estatus_cached(ghes->estatus)) {
if (ghes_print_estatus(NULL, ghes->generic, ghes->estatus))
ghes_estatus_cache_add(ghes->generic, ghes->estatus);
}
ghes_do_proc(ghes, ghes->estatus);
+
out:
ghes_clear_estatus(ghes);
+
+ if (rc == -ENOENT)
+ return rc;
+
+ /*
+ * GHESv2 type HEST entries introduce support for error acknowledgment,
+ * so only acknowledge the error if this support is present.
+ */
+ if (is_hest_type_generic_v2(ghes))
+ return ghes_ack_error(ghes->generic_v2);
+
return rc;
}
@@ -702,14 +795,14 @@ static irqreturn_t ghes_irq_func(int irq, void *data)
return IRQ_HANDLED;
}
-static int ghes_notify_sci(struct notifier_block *this,
- unsigned long event, void *data)
+static int ghes_notify_hed(struct notifier_block *this, unsigned long event,
+ void *data)
{
struct ghes *ghes;
int ret = NOTIFY_DONE;
rcu_read_lock();
- list_for_each_entry_rcu(ghes, &ghes_sci, list) {
+ list_for_each_entry_rcu(ghes, &ghes_hed, list) {
if (!ghes_proc(ghes))
ret = NOTIFY_OK;
}
@@ -718,10 +811,59 @@ static int ghes_notify_sci(struct notifier_block *this,
return ret;
}
-static struct notifier_block ghes_notifier_sci = {
- .notifier_call = ghes_notify_sci,
+static struct notifier_block ghes_notifier_hed = {
+ .notifier_call = ghes_notify_hed,
};
+#ifdef CONFIG_ACPI_APEI_SEA
+static LIST_HEAD(ghes_sea);
+
+/*
+ * Return 0 only if one of the SEA error sources successfully reported an error
+ * record sent from the firmware.
+ */
+int ghes_notify_sea(void)
+{
+ struct ghes *ghes;
+ int ret = -ENOENT;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(ghes, &ghes_sea, list) {
+ if (!ghes_proc(ghes))
+ ret = 0;
+ }
+ rcu_read_unlock();
+ return ret;
+}
+
+static void ghes_sea_add(struct ghes *ghes)
+{
+ mutex_lock(&ghes_list_mutex);
+ list_add_rcu(&ghes->list, &ghes_sea);
+ mutex_unlock(&ghes_list_mutex);
+}
+
+static void ghes_sea_remove(struct ghes *ghes)
+{
+ mutex_lock(&ghes_list_mutex);
+ list_del_rcu(&ghes->list);
+ mutex_unlock(&ghes_list_mutex);
+ synchronize_rcu();
+}
+#else /* CONFIG_ACPI_APEI_SEA */
+static inline void ghes_sea_add(struct ghes *ghes)
+{
+ pr_err(GHES_PFX "ID: %d, trying to add SEA notification which is not supported\n",
+ ghes->generic->header.source_id);
+}
+
+static inline void ghes_sea_remove(struct ghes *ghes)
+{
+ pr_err(GHES_PFX "ID: %d, trying to remove SEA notification which is not supported\n",
+ ghes->generic->header.source_id);
+}
+#endif /* CONFIG_ACPI_APEI_SEA */
+
#ifdef CONFIG_HAVE_ACPI_APEI_NMI
/*
* printk is not safe in NMI context. So in NMI handler, we allocate
@@ -742,8 +884,6 @@ static atomic_t ghes_in_nmi = ATOMIC_INIT(0);
static LIST_HEAD(ghes_nmi);
-static int ghes_panic_timeout __read_mostly = 30;
-
static void ghes_proc_in_irq(struct irq_work *irq_work)
{
struct llist_node *llnode, *next;
@@ -829,18 +969,6 @@ static void __process_error(struct ghes *ghes)
#endif
}
-static void __ghes_panic(struct ghes *ghes)
-{
- oops_begin();
- ghes_print_queued_estatus();
- __ghes_print_estatus(KERN_EMERG, ghes->generic, ghes->estatus);
-
- /* reboot to log the error! */
- if (panic_timeout == 0)
- panic_timeout = ghes_panic_timeout;
- panic("Fatal hardware error!");
-}
-
static int ghes_notify_nmi(unsigned int cmd, struct pt_regs *regs)
{
struct ghes *ghes;
@@ -858,8 +986,11 @@ static int ghes_notify_nmi(unsigned int cmd, struct pt_regs *regs)
}
sev = ghes_severity(ghes->estatus->error_severity);
- if (sev >= GHES_SEV_PANIC)
+ if (sev >= GHES_SEV_PANIC) {
+ oops_begin();
+ ghes_print_queued_estatus();
__ghes_panic(ghes);
+ }
if (!(ghes->flags & GHES_TO_CLEAR))
continue;
@@ -966,6 +1097,17 @@ static int ghes_probe(struct platform_device *ghes_dev)
case ACPI_HEST_NOTIFY_POLLED:
case ACPI_HEST_NOTIFY_EXTERNAL:
case ACPI_HEST_NOTIFY_SCI:
+ case ACPI_HEST_NOTIFY_GSIV:
+ case ACPI_HEST_NOTIFY_GPIO:
+ break;
+
+ case ACPI_HEST_NOTIFY_SEA:
+ if (!IS_ENABLED(CONFIG_ACPI_APEI_SEA)) {
+ pr_warn(GHES_PFX "Generic hardware error source: %d notified via SEA is not supported\n",
+ generic->header.source_id);
+ rc = -ENOTSUPP;
+ goto err;
+ }
break;
case ACPI_HEST_NOTIFY_NMI:
if (!IS_ENABLED(CONFIG_HAVE_ACPI_APEI_NMI)) {
@@ -1017,20 +1159,28 @@ static int ghes_probe(struct platform_device *ghes_dev)
generic->header.source_id);
goto err_edac_unreg;
}
- rc = request_irq(ghes->irq, ghes_irq_func, 0, "GHES IRQ", ghes);
+ rc = request_irq(ghes->irq, ghes_irq_func, IRQF_SHARED,
+ "GHES IRQ", ghes);
if (rc) {
pr_err(GHES_PFX "Failed to register IRQ for generic hardware error source: %d\n",
generic->header.source_id);
goto err_edac_unreg;
}
break;
+
case ACPI_HEST_NOTIFY_SCI:
+ case ACPI_HEST_NOTIFY_GSIV:
+ case ACPI_HEST_NOTIFY_GPIO:
mutex_lock(&ghes_list_mutex);
- if (list_empty(&ghes_sci))
- register_acpi_hed_notifier(&ghes_notifier_sci);
- list_add_rcu(&ghes->list, &ghes_sci);
+ if (list_empty(&ghes_hed))
+ register_acpi_hed_notifier(&ghes_notifier_hed);
+ list_add_rcu(&ghes->list, &ghes_hed);
mutex_unlock(&ghes_list_mutex);
break;
+
+ case ACPI_HEST_NOTIFY_SEA:
+ ghes_sea_add(ghes);
+ break;
case ACPI_HEST_NOTIFY_NMI:
ghes_nmi_add(ghes);
break;
@@ -1039,6 +1189,9 @@ static int ghes_probe(struct platform_device *ghes_dev)
}
platform_set_drvdata(ghes_dev, ghes);
+ /* Handle any pending errors right away */
+ ghes_proc(ghes);
+
return 0;
err_edac_unreg:
ghes_edac_unregister(ghes);
@@ -1066,14 +1219,21 @@ static int ghes_remove(struct platform_device *ghes_dev)
case ACPI_HEST_NOTIFY_EXTERNAL:
free_irq(ghes->irq, ghes);
break;
+
case ACPI_HEST_NOTIFY_SCI:
+ case ACPI_HEST_NOTIFY_GSIV:
+ case ACPI_HEST_NOTIFY_GPIO:
mutex_lock(&ghes_list_mutex);
list_del_rcu(&ghes->list);
- if (list_empty(&ghes_sci))
- unregister_acpi_hed_notifier(&ghes_notifier_sci);
+ if (list_empty(&ghes_hed))
+ unregister_acpi_hed_notifier(&ghes_notifier_hed);
mutex_unlock(&ghes_list_mutex);
synchronize_rcu();
break;
+
+ case ACPI_HEST_NOTIFY_SEA:
+ ghes_sea_remove(ghes);
+ break;
case ACPI_HEST_NOTIFY_NMI:
ghes_nmi_remove(ghes);
break;
@@ -1108,9 +1268,14 @@ static int __init ghes_init(void)
if (acpi_disabled)
return -ENODEV;
- if (hest_disable) {
+ switch (hest_disable) {
+ case HEST_NOT_FOUND:
+ return -ENODEV;
+ case HEST_DISABLED:
pr_info(GHES_PFX "HEST is not enabled!\n");
return -EINVAL;
+ default:
+ break;
}
if (ghes_disable) {
diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c
index 8f2a98e23bba..9cb74115a43d 100644
--- a/drivers/acpi/apei/hest.c
+++ b/drivers/acpi/apei/hest.c
@@ -37,7 +37,7 @@
#define HEST_PFX "HEST: "
-bool hest_disable;
+int hest_disable;
EXPORT_SYMBOL_GPL(hest_disable);
/* HEST table parsing */
@@ -52,6 +52,7 @@ static const int hest_esrc_len_tab[ACPI_HEST_TYPE_RESERVED] = {
[ACPI_HEST_TYPE_AER_ENDPOINT] = sizeof(struct acpi_hest_aer),
[ACPI_HEST_TYPE_AER_BRIDGE] = sizeof(struct acpi_hest_aer_bridge),
[ACPI_HEST_TYPE_GENERIC_ERROR] = sizeof(struct acpi_hest_generic),
+ [ACPI_HEST_TYPE_GENERIC_ERROR_V2] = sizeof(struct acpi_hest_generic_v2),
};
static int hest_esrc_len(struct acpi_hest_header *hest_hdr)
@@ -141,7 +142,8 @@ static int __init hest_parse_ghes_count(struct acpi_hest_header *hest_hdr, void
{
int *count = data;
- if (hest_hdr->type == ACPI_HEST_TYPE_GENERIC_ERROR)
+ if (hest_hdr->type == ACPI_HEST_TYPE_GENERIC_ERROR ||
+ hest_hdr->type == ACPI_HEST_TYPE_GENERIC_ERROR_V2)
(*count)++;
return 0;
}
@@ -152,7 +154,8 @@ static int __init hest_parse_ghes(struct acpi_hest_header *hest_hdr, void *data)
struct ghes_arr *ghes_arr = data;
int rc, i;
- if (hest_hdr->type != ACPI_HEST_TYPE_GENERIC_ERROR)
+ if (hest_hdr->type != ACPI_HEST_TYPE_GENERIC_ERROR &&
+ hest_hdr->type != ACPI_HEST_TYPE_GENERIC_ERROR_V2)
return 0;
if (!((struct acpi_hest_generic *)hest_hdr)->enabled)
@@ -210,7 +213,7 @@ err:
static int __init setup_hest_disable(char *str)
{
- hest_disable = 1;
+ hest_disable = HEST_DISABLED;
return 0;
}
@@ -229,9 +232,10 @@ void __init acpi_hest_init(void)
status = acpi_get_table(ACPI_SIG_HEST, 0,
(struct acpi_table_header **)&hest_tab);
- if (status == AE_NOT_FOUND)
- goto err;
- else if (ACPI_FAILURE(status)) {
+ if (status == AE_NOT_FOUND) {
+ hest_disable = HEST_NOT_FOUND;
+ return;
+ } else if (ACPI_FAILURE(status)) {
const char *msg = acpi_format_exception(status);
pr_err(HEST_PFX "Failed to get table, %s\n", msg);
rc = -EINVAL;
@@ -254,5 +258,5 @@ void __init acpi_hest_init(void)
pr_info(HEST_PFX "Table parsing has been initialized.\n");
return;
err:
- hest_disable = 1;
+ hest_disable = HEST_DISABLED;
}
diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index 797b28dc7b34..de56394dd161 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -31,6 +31,11 @@
#define IORT_IOMMU_TYPE ((1 << ACPI_IORT_NODE_SMMU) | \
(1 << ACPI_IORT_NODE_SMMU_V3))
+/* Until ACPICA headers cover IORT rev. C */
+#ifndef ACPI_IORT_SMMU_V3_CAVIUM_CN99XX
+#define ACPI_IORT_SMMU_V3_CAVIUM_CN99XX 0x2
+#endif
+
struct iort_its_msi_chip {
struct list_head list;
struct fwnode_handle *fw_node;
@@ -234,21 +239,6 @@ static struct acpi_iort_node *iort_scan_node(enum acpi_iort_node_type type,
return NULL;
}
-static acpi_status
-iort_match_type_callback(struct acpi_iort_node *node, void *context)
-{
- return AE_OK;
-}
-
-bool iort_node_match(u8 type)
-{
- struct acpi_iort_node *node;
-
- node = iort_scan_node(type, iort_match_type_callback, NULL);
-
- return node != NULL;
-}
-
static acpi_status iort_match_node_callback(struct acpi_iort_node *node,
void *context)
{
@@ -598,7 +588,8 @@ void acpi_configure_pmsi_domain(struct device *dev)
dev_set_msi_domain(dev, msi_domain);
}
-static int __get_pci_rid(struct pci_dev *pdev, u16 alias, void *data)
+static int __maybe_unused __get_pci_rid(struct pci_dev *pdev, u16 alias,
+ void *data)
{
u32 *rid = data;
@@ -643,8 +634,7 @@ int iort_add_device_replay(const struct iommu_ops *ops, struct device *dev)
{
int err = 0;
- if (!IS_ERR_OR_NULL(ops) && ops->add_device && dev->bus &&
- !dev->iommu_group)
+ if (ops->add_device && dev->bus && !dev->iommu_group)
err = ops->add_device(dev);
return err;
@@ -658,45 +648,81 @@ int iort_add_device_replay(const struct iommu_ops *ops, struct device *dev)
{ return 0; }
#endif
-static const struct iommu_ops *iort_iommu_xlate(struct device *dev,
- struct acpi_iort_node *node,
- u32 streamid)
+static int iort_iommu_xlate(struct device *dev, struct acpi_iort_node *node,
+ u32 streamid)
{
- const struct iommu_ops *ops = NULL;
- int ret = -ENODEV;
+ const struct iommu_ops *ops;
struct fwnode_handle *iort_fwnode;
- if (node) {
- iort_fwnode = iort_get_fwnode(node);
- if (!iort_fwnode)
- return NULL;
+ if (!node)
+ return -ENODEV;
- ops = iommu_ops_from_fwnode(iort_fwnode);
- /*
- * If the ops look-up fails, this means that either
- * the SMMU drivers have not been probed yet or that
- * the SMMU drivers are not built in the kernel;
- * Depending on whether the SMMU drivers are built-in
- * in the kernel or not, defer the IOMMU configuration
- * or just abort it.
- */
- if (!ops)
- return iort_iommu_driver_enabled(node->type) ?
- ERR_PTR(-EPROBE_DEFER) : NULL;
+ iort_fwnode = iort_get_fwnode(node);
+ if (!iort_fwnode)
+ return -ENODEV;
- ret = arm_smmu_iort_xlate(dev, streamid, iort_fwnode, ops);
- }
+ /*
+ * If the ops look-up fails, this means that either
+ * the SMMU drivers have not been probed yet or that
+ * the SMMU drivers are not built in the kernel;
+ * Depending on whether the SMMU drivers are built-in
+ * in the kernel or not, defer the IOMMU configuration
+ * or just abort it.
+ */
+ ops = iommu_ops_from_fwnode(iort_fwnode);
+ if (!ops)
+ return iort_iommu_driver_enabled(node->type) ?
+ -EPROBE_DEFER : -ENODEV;
+
+ return arm_smmu_iort_xlate(dev, streamid, iort_fwnode, ops);
+}
+
+struct iort_pci_alias_info {
+ struct device *dev;
+ struct acpi_iort_node *node;
+};
+
+static int iort_pci_iommu_init(struct pci_dev *pdev, u16 alias, void *data)
+{
+ struct iort_pci_alias_info *info = data;
+ struct acpi_iort_node *parent;
+ u32 streamid;
- return ret ? NULL : ops;
+ parent = iort_node_map_id(info->node, alias, &streamid,
+ IORT_IOMMU_TYPE);
+ return iort_iommu_xlate(info->dev, parent, streamid);
+}
+
+static int nc_dma_get_range(struct device *dev, u64 *size)
+{
+ struct acpi_iort_node *node;
+ struct acpi_iort_named_component *ncomp;
+
+ node = iort_scan_node(ACPI_IORT_NODE_NAMED_COMPONENT,
+ iort_match_node_callback, dev);
+ if (!node)
+ return -ENODEV;
+
+ ncomp = (struct acpi_iort_named_component *)node->node_data;
+
+ *size = ncomp->memory_address_limit >= 64 ? U64_MAX :
+ 1ULL<<ncomp->memory_address_limit;
+
+ return 0;
}
/**
- * iort_set_dma_mask - Set-up dma mask for a device.
+ * iort_dma_setup() - Set-up device DMA parameters.
*
* @dev: device to configure
+ * @dma_addr: device DMA address result pointer
+ * @size: DMA range size result pointer
*/
-void iort_set_dma_mask(struct device *dev)
+void iort_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size)
{
+ u64 mask, dmaaddr = 0, size = 0, offset = 0;
+ int ret, msb;
+
/*
* Set default coherent_dma_mask to 32 bit. Drivers are expected to
* setup the correct supported mask.
@@ -710,6 +736,36 @@ void iort_set_dma_mask(struct device *dev)
*/
if (!dev->dma_mask)
dev->dma_mask = &dev->coherent_dma_mask;
+
+ size = max(dev->coherent_dma_mask, dev->coherent_dma_mask + 1);
+
+ if (dev_is_pci(dev))
+ ret = acpi_dma_get_range(dev, &dmaaddr, &offset, &size);
+ else
+ ret = nc_dma_get_range(dev, &size);
+
+ if (!ret) {
+ msb = fls64(dmaaddr + size - 1);
+ /*
+ * Round-up to the power-of-two mask or set
+ * the mask to the whole 64-bit address space
+ * in case the DMA region covers the full
+ * memory window.
+ */
+ mask = msb == 64 ? U64_MAX : (1ULL << msb) - 1;
+ /*
+ * Limit coherent and dma mask based on size
+ * retrieved from firmware.
+ */
+ dev->coherent_dma_mask = mask;
+ *dev->dma_mask = mask;
+ }
+
+ *dma_addr = dmaaddr;
+ *dma_size = size;
+
+ dev->dma_pfn_offset = PFN_DOWN(offset);
+ dev_dbg(dev, "dma_pfn_offset(%#08llx)\n", offset);
}
/**
@@ -723,9 +779,9 @@ void iort_set_dma_mask(struct device *dev)
const struct iommu_ops *iort_iommu_configure(struct device *dev)
{
struct acpi_iort_node *node, *parent;
- const struct iommu_ops *ops = NULL;
+ const struct iommu_ops *ops;
u32 streamid = 0;
- int err;
+ int err = -ENODEV;
/*
* If we already translated the fwspec there
@@ -737,21 +793,16 @@ const struct iommu_ops *iort_iommu_configure(struct device *dev)
if (dev_is_pci(dev)) {
struct pci_bus *bus = to_pci_dev(dev)->bus;
- u32 rid;
-
- pci_for_each_dma_alias(to_pci_dev(dev), __get_pci_rid,
- &rid);
+ struct iort_pci_alias_info info = { .dev = dev };
node = iort_scan_node(ACPI_IORT_NODE_PCI_ROOT_COMPLEX,
iort_match_node_callback, &bus->dev);
if (!node)
return NULL;
- parent = iort_node_map_id(node, rid, &streamid,
- IORT_IOMMU_TYPE);
-
- ops = iort_iommu_xlate(dev, parent, streamid);
-
+ info.node = node;
+ err = pci_for_each_dma_alias(to_pci_dev(dev),
+ iort_pci_iommu_init, &info);
} else {
int i = 0;
@@ -760,31 +811,30 @@ const struct iommu_ops *iort_iommu_configure(struct device *dev)
if (!node)
return NULL;
- parent = iort_node_map_platform_id(node, &streamid,
- IORT_IOMMU_TYPE, i++);
-
- while (parent) {
- ops = iort_iommu_xlate(dev, parent, streamid);
- if (IS_ERR_OR_NULL(ops))
- return ops;
-
+ do {
parent = iort_node_map_platform_id(node, &streamid,
IORT_IOMMU_TYPE,
i++);
- }
+
+ if (parent)
+ err = iort_iommu_xlate(dev, parent, streamid);
+ } while (parent && !err);
}
/*
* If we have reason to believe the IOMMU driver missed the initial
* add_device callback for dev, replay it to get things in order.
*/
- err = iort_add_device_replay(ops, dev);
- if (err)
- ops = ERR_PTR(err);
+ if (!err) {
+ ops = iort_fwspec_iommu_ops(dev->iommu_fwspec);
+ err = iort_add_device_replay(ops, dev);
+ }
/* Ignore all other errors apart from EPROBE_DEFER */
- if (IS_ERR(ops) && (PTR_ERR(ops) != -EPROBE_DEFER)) {
- dev_dbg(dev, "Adding to IOMMU failed: %ld\n", PTR_ERR(ops));
+ if (err == -EPROBE_DEFER) {
+ ops = ERR_PTR(err);
+ } else if (err) {
+ dev_dbg(dev, "Adding to IOMMU failed: %d\n", err);
ops = NULL;
}
@@ -834,6 +884,36 @@ static int __init arm_smmu_v3_count_resources(struct acpi_iort_node *node)
return num_res;
}
+static bool arm_smmu_v3_is_combined_irq(struct acpi_iort_smmu_v3 *smmu)
+{
+ /*
+ * Cavium ThunderX2 implementation doesn't not support unique
+ * irq line. Use single irq line for all the SMMUv3 interrupts.
+ */
+ if (smmu->model != ACPI_IORT_SMMU_V3_CAVIUM_CN99XX)
+ return false;
+
+ /*
+ * ThunderX2 doesn't support MSIs from the SMMU, so we're checking
+ * SPI numbers here.
+ */
+ return smmu->event_gsiv == smmu->pri_gsiv &&
+ smmu->event_gsiv == smmu->gerr_gsiv &&
+ smmu->event_gsiv == smmu->sync_gsiv;
+}
+
+static unsigned long arm_smmu_v3_resource_size(struct acpi_iort_smmu_v3 *smmu)
+{
+ /*
+ * Override the size, for Cavium ThunderX2 implementation
+ * which doesn't support the page 1 SMMU register space.
+ */
+ if (smmu->model == ACPI_IORT_SMMU_V3_CAVIUM_CN99XX)
+ return SZ_64K;
+
+ return SZ_128K;
+}
+
static void __init arm_smmu_v3_init_resources(struct resource *res,
struct acpi_iort_node *node)
{
@@ -844,30 +924,38 @@ static void __init arm_smmu_v3_init_resources(struct resource *res,
smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
res[num_res].start = smmu->base_address;
- res[num_res].end = smmu->base_address + SZ_128K - 1;
+ res[num_res].end = smmu->base_address +
+ arm_smmu_v3_resource_size(smmu) - 1;
res[num_res].flags = IORESOURCE_MEM;
num_res++;
+ if (arm_smmu_v3_is_combined_irq(smmu)) {
+ if (smmu->event_gsiv)
+ acpi_iort_register_irq(smmu->event_gsiv, "combined",
+ ACPI_EDGE_SENSITIVE,
+ &res[num_res++]);
+ } else {
- if (smmu->event_gsiv)
- acpi_iort_register_irq(smmu->event_gsiv, "eventq",
- ACPI_EDGE_SENSITIVE,
- &res[num_res++]);
-
- if (smmu->pri_gsiv)
- acpi_iort_register_irq(smmu->pri_gsiv, "priq",
- ACPI_EDGE_SENSITIVE,
- &res[num_res++]);
-
- if (smmu->gerr_gsiv)
- acpi_iort_register_irq(smmu->gerr_gsiv, "gerror",
- ACPI_EDGE_SENSITIVE,
- &res[num_res++]);
-
- if (smmu->sync_gsiv)
- acpi_iort_register_irq(smmu->sync_gsiv, "cmdq-sync",
- ACPI_EDGE_SENSITIVE,
- &res[num_res++]);
+ if (smmu->event_gsiv)
+ acpi_iort_register_irq(smmu->event_gsiv, "eventq",
+ ACPI_EDGE_SENSITIVE,
+ &res[num_res++]);
+
+ if (smmu->pri_gsiv)
+ acpi_iort_register_irq(smmu->pri_gsiv, "priq",
+ ACPI_EDGE_SENSITIVE,
+ &res[num_res++]);
+
+ if (smmu->gerr_gsiv)
+ acpi_iort_register_irq(smmu->gerr_gsiv, "gerror",
+ ACPI_EDGE_SENSITIVE,
+ &res[num_res++]);
+
+ if (smmu->sync_gsiv)
+ acpi_iort_register_irq(smmu->sync_gsiv, "cmdq-sync",
+ ACPI_EDGE_SENSITIVE,
+ &res[num_res++]);
+ }
}
static bool __init arm_smmu_v3_is_coherent(struct acpi_iort_node *node)
@@ -880,6 +968,27 @@ static bool __init arm_smmu_v3_is_coherent(struct acpi_iort_node *node)
return smmu->flags & ACPI_IORT_SMMU_V3_COHACC_OVERRIDE;
}
+#if defined(CONFIG_ACPI_NUMA) && defined(ACPI_IORT_SMMU_V3_PXM_VALID)
+/*
+ * set numa proximity domain for smmuv3 device
+ */
+static void __init arm_smmu_v3_set_proximity(struct device *dev,
+ struct acpi_iort_node *node)
+{
+ struct acpi_iort_smmu_v3 *smmu;
+
+ smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
+ if (smmu->flags & ACPI_IORT_SMMU_V3_PXM_VALID) {
+ set_dev_node(dev, acpi_map_pxm_to_node(smmu->pxm));
+ pr_info("SMMU-v3[%llx] Mapped to Proximity domain %d\n",
+ smmu->base_address,
+ smmu->pxm);
+ }
+}
+#else
+#define arm_smmu_v3_set_proximity NULL
+#endif
+
static int __init arm_smmu_count_resources(struct acpi_iort_node *node)
{
struct acpi_iort_smmu *smmu;
@@ -949,13 +1058,16 @@ struct iort_iommu_config {
int (*iommu_count_resources)(struct acpi_iort_node *node);
void (*iommu_init_resources)(struct resource *res,
struct acpi_iort_node *node);
+ void (*iommu_set_proximity)(struct device *dev,
+ struct acpi_iort_node *node);
};
static const struct iort_iommu_config iort_arm_smmu_v3_cfg __initconst = {
.name = "arm-smmu-v3",
.iommu_is_coherent = arm_smmu_v3_is_coherent,
.iommu_count_resources = arm_smmu_v3_count_resources,
- .iommu_init_resources = arm_smmu_v3_init_resources
+ .iommu_init_resources = arm_smmu_v3_init_resources,
+ .iommu_set_proximity = arm_smmu_v3_set_proximity,
};
static const struct iort_iommu_config iort_arm_smmu_cfg __initconst = {
@@ -1000,6 +1112,9 @@ static int __init iort_add_smmu_platform_device(struct acpi_iort_node *node)
if (!pdev)
return -ENOMEM;
+ if (ops->iommu_set_proximity)
+ ops->iommu_set_proximity(&pdev->dev, node);
+
count = ops->iommu_count_resources(node);
r = kcalloc(count, sizeof(*r), GFP_KERNEL);
@@ -1063,12 +1178,44 @@ dev_put:
return ret;
}
+static bool __init iort_enable_acs(struct acpi_iort_node *iort_node)
+{
+ if (iort_node->type == ACPI_IORT_NODE_PCI_ROOT_COMPLEX) {
+ struct acpi_iort_node *parent;
+ struct acpi_iort_id_mapping *map;
+ int i;
+
+ map = ACPI_ADD_PTR(struct acpi_iort_id_mapping, iort_node,
+ iort_node->mapping_offset);
+
+ for (i = 0; i < iort_node->mapping_count; i++, map++) {
+ if (!map->output_reference)
+ continue;
+
+ parent = ACPI_ADD_PTR(struct acpi_iort_node,
+ iort_table, map->output_reference);
+ /*
+ * If we detect a RC->SMMU mapping, make sure
+ * we enable ACS on the system.
+ */
+ if ((parent->type == ACPI_IORT_NODE_SMMU) ||
+ (parent->type == ACPI_IORT_NODE_SMMU_V3)) {
+ pci_request_acs();
+ return true;
+ }
+ }
+ }
+
+ return false;
+}
+
static void __init iort_init_platform_devices(void)
{
struct acpi_iort_node *iort_node, *iort_end;
struct acpi_table_iort *iort;
struct fwnode_handle *fwnode;
int i, ret;
+ bool acs_enabled = false;
/*
* iort_table and iort both point to the start of IORT table, but
@@ -1088,6 +1235,9 @@ static void __init iort_init_platform_devices(void)
return;
}
+ if (!acs_enabled)
+ acs_enabled = iort_enable_acs(iort_node);
+
if ((iort_node->type == ACPI_IORT_NODE_SMMU) ||
(iort_node->type == ACPI_IORT_NODE_SMMU_V3)) {
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index d42eeef9d928..13e7b56e33ae 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -620,7 +620,7 @@ static ssize_t acpi_battery_alarm_store(struct device *dev,
return count;
}
-static struct device_attribute alarm_attr = {
+static const struct device_attribute alarm_attr = {
.attr = {.name = "alarm", .mode = 0644},
.show = acpi_battery_alarm_show,
.store = acpi_battery_alarm_store,
@@ -782,7 +782,7 @@ static int acpi_battery_update(struct acpi_battery *battery, bool resume)
if ((battery->state & ACPI_BATTERY_STATE_CRITICAL) ||
(test_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags) &&
(battery->capacity_now <= battery->alarm)))
- pm_wakeup_event(&battery->device->dev, 0);
+ acpi_pm_wakeup_event(&battery->device->dev);
return result;
}
diff --git a/drivers/acpi/bgrt.c b/drivers/acpi/bgrt.c
index df1c629205e7..75af78361ce5 100644
--- a/drivers/acpi/bgrt.c
+++ b/drivers/acpi/bgrt.c
@@ -76,7 +76,7 @@ static struct bin_attribute *bgrt_bin_attributes[] = {
NULL,
};
-static struct attribute_group bgrt_attribute_group = {
+static const struct attribute_group bgrt_attribute_group = {
.attrs = bgrt_attributes,
.bin_attrs = bgrt_bin_attributes,
};
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index bb542acc0574..995c4d8922b1 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -30,30 +30,13 @@
#include "internal.h"
-enum acpi_blacklist_predicates {
- all_versions,
- less_than_or_equal,
- equal,
- greater_than_or_equal,
-};
-
-struct acpi_blacklist_item {
- char oem_id[7];
- char oem_table_id[9];
- u32 oem_revision;
- char *table;
- enum acpi_blacklist_predicates oem_revision_predicate;
- char *reason;
- u32 is_critical_error;
-};
-
-static struct dmi_system_id acpi_rev_dmi_table[] __initdata;
+static const struct dmi_system_id acpi_rev_dmi_table[] __initconst;
/*
* POLICY: If *anything* doesn't work, put it on the blacklist.
* If they are critical errors, mark it critical, and abort driver load.
*/
-static struct acpi_blacklist_item acpi_blacklist[] __initdata = {
+static struct acpi_platform_list acpi_blacklist[] __initdata = {
/* Compaq Presario 1700 */
{"PTLTD ", " DSDT ", 0x06040000, ACPI_SIG_DSDT, less_than_or_equal,
"Multiple problems", 1},
@@ -67,65 +50,27 @@ static struct acpi_blacklist_item acpi_blacklist[] __initdata = {
{"IBM ", "TP600E ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal,
"Incorrect _ADR", 1},
- {""}
+ { }
};
int __init acpi_blacklisted(void)
{
- int i = 0;
+ int i;
int blacklisted = 0;
- struct acpi_table_header table_header;
-
- while (acpi_blacklist[i].oem_id[0] != '\0') {
- if (acpi_get_table_header(acpi_blacklist[i].table, 0, &table_header)) {
- i++;
- continue;
- }
-
- if (strncmp(acpi_blacklist[i].oem_id, table_header.oem_id, 6)) {
- i++;
- continue;
- }
-
- if (strncmp
- (acpi_blacklist[i].oem_table_id, table_header.oem_table_id,
- 8)) {
- i++;
- continue;
- }
-
- if ((acpi_blacklist[i].oem_revision_predicate == all_versions)
- || (acpi_blacklist[i].oem_revision_predicate ==
- less_than_or_equal
- && table_header.oem_revision <=
- acpi_blacklist[i].oem_revision)
- || (acpi_blacklist[i].oem_revision_predicate ==
- greater_than_or_equal
- && table_header.oem_revision >=
- acpi_blacklist[i].oem_revision)
- || (acpi_blacklist[i].oem_revision_predicate == equal
- && table_header.oem_revision ==
- acpi_blacklist[i].oem_revision)) {
- printk(KERN_ERR PREFIX
- "Vendor \"%6.6s\" System \"%8.8s\" "
- "Revision 0x%x has a known ACPI BIOS problem.\n",
- acpi_blacklist[i].oem_id,
- acpi_blacklist[i].oem_table_id,
- acpi_blacklist[i].oem_revision);
+ i = acpi_match_platform_list(acpi_blacklist);
+ if (i >= 0) {
+ pr_err(PREFIX "Vendor \"%6.6s\" System \"%8.8s\" Revision 0x%x has a known ACPI BIOS problem.\n",
+ acpi_blacklist[i].oem_id,
+ acpi_blacklist[i].oem_table_id,
+ acpi_blacklist[i].oem_revision);
- printk(KERN_ERR PREFIX
- "Reason: %s. This is a %s error\n",
- acpi_blacklist[i].reason,
- (acpi_blacklist[i].
- is_critical_error ? "non-recoverable" :
- "recoverable"));
+ pr_err(PREFIX "Reason: %s. This is a %s error\n",
+ acpi_blacklist[i].reason,
+ (acpi_blacklist[i].data ?
+ "non-recoverable" : "recoverable"));
- blacklisted = acpi_blacklist[i].is_critical_error;
- break;
- } else {
- i++;
- }
+ blacklisted = acpi_blacklist[i].data;
}
(void)early_acpi_osi_init();
@@ -144,7 +89,7 @@ static int __init dmi_enable_rev_override(const struct dmi_system_id *d)
}
#endif
-static struct dmi_system_id acpi_rev_dmi_table[] __initdata = {
+static const struct dmi_system_id acpi_rev_dmi_table[] __initconst = {
#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
/*
* DELL XPS 13 (2015) switches sound between HDA and I2S
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 784bda663d16..4d0979e02a28 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -67,7 +67,7 @@ static int set_copy_dsdt(const struct dmi_system_id *id)
}
#endif
-static struct dmi_system_id dsdt_dmi_table[] __initdata = {
+static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
/*
* Invoke DSDT corruption work-around on all Toshiba Satellite.
* https://bugzilla.kernel.org/show_bug.cgi?id=14679
@@ -83,7 +83,7 @@ static struct dmi_system_id dsdt_dmi_table[] __initdata = {
{}
};
#else
-static struct dmi_system_id dsdt_dmi_table[] __initdata = {
+static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
{}
};
#endif
@@ -196,42 +196,19 @@ static void acpi_print_osc_error(acpi_handle handle,
pr_debug("\n");
}
-acpi_status acpi_str_to_uuid(char *str, u8 *uuid)
-{
- int i;
- static int opc_map_to_uuid[16] = {6, 4, 2, 0, 11, 9, 16, 14, 19, 21,
- 24, 26, 28, 30, 32, 34};
-
- if (strlen(str) != 36)
- return AE_BAD_PARAMETER;
- for (i = 0; i < 36; i++) {
- if (i == 8 || i == 13 || i == 18 || i == 23) {
- if (str[i] != '-')
- return AE_BAD_PARAMETER;
- } else if (!isxdigit(str[i]))
- return AE_BAD_PARAMETER;
- }
- for (i = 0; i < 16; i++) {
- uuid[i] = hex_to_bin(str[opc_map_to_uuid[i]]) << 4;
- uuid[i] |= hex_to_bin(str[opc_map_to_uuid[i] + 1]);
- }
- return AE_OK;
-}
-EXPORT_SYMBOL_GPL(acpi_str_to_uuid);
-
acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context)
{
acpi_status status;
struct acpi_object_list input;
union acpi_object in_params[4];
union acpi_object *out_obj;
- u8 uuid[16];
+ guid_t guid;
u32 errors;
struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL};
if (!context)
return AE_ERROR;
- if (ACPI_FAILURE(acpi_str_to_uuid(context->uuid_str, uuid)))
+ if (guid_parse(context->uuid_str, &guid))
return AE_ERROR;
context->ret.length = ACPI_ALLOCATE_BUFFER;
context->ret.pointer = NULL;
@@ -241,7 +218,7 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context)
input.pointer = in_params;
in_params[0].type = ACPI_TYPE_BUFFER;
in_params[0].buffer.length = 16;
- in_params[0].buffer.pointer = uuid;
+ in_params[0].buffer.pointer = (u8 *)&guid;
in_params[1].type = ACPI_TYPE_INTEGER;
in_params[1].integer.value = context->rev;
in_params[2].type = ACPI_TYPE_INTEGER;
@@ -432,11 +409,15 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
(driver->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS))
driver->ops.notify(adev, type);
- if (hotplug_event && ACPI_SUCCESS(acpi_hotplug_schedule(adev, type)))
+ if (!hotplug_event) {
+ acpi_bus_put_acpi_device(adev);
+ return;
+ }
+
+ if (ACPI_SUCCESS(acpi_hotplug_schedule(adev, type)))
return;
acpi_bus_put_acpi_device(adev);
- return;
err:
acpi_evaluate_ost(handle, type, ost_code, NULL);
@@ -1014,9 +995,6 @@ void __init acpi_early_init(void)
printk(KERN_INFO PREFIX "Core revision %08x\n", ACPI_CA_VERSION);
- /* It's safe to verify table checksums during late stage */
- acpi_gbl_verify_table_checksum = TRUE;
-
/* enable workarounds, unless strict ACPI spec. compliance */
if (!acpi_strict)
acpi_gbl_enable_interpreter_slack = TRUE;
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index e19f530f1083..ef1856b15488 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -19,7 +19,7 @@
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
-#define pr_fmt(fmt) "ACPI : button: " fmt
+#define pr_fmt(fmt) "ACPI: button: " fmt
#include <linux/kernel.h>
#include <linux/module.h>
@@ -217,7 +217,7 @@ static int acpi_lid_notify_state(struct acpi_device *device, int state)
}
if (state)
- pm_wakeup_event(&device->dev, 0);
+ acpi_pm_wakeup_event(&device->dev);
ret = blocking_notifier_call_chain(&acpi_lid_notifier, state, device);
if (ret == NOTIFY_DONE)
@@ -402,7 +402,7 @@ static void acpi_button_notify(struct acpi_device *device, u32 event)
} else {
int keycode;
- pm_wakeup_event(&device->dev, 0);
+ acpi_pm_wakeup_event(&device->dev);
if (button->suspended)
break;
@@ -534,6 +534,7 @@ static int acpi_button_add(struct acpi_device *device)
lid_device = device;
}
+ device_init_wakeup(&device->dev, true);
printk(KERN_INFO PREFIX "%s [%s]\n", name, acpi_device_bid(device));
return 0;
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 993fd31394c8..fbcc73f7a099 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -24,6 +24,7 @@
#include <linux/pm_qos.h>
#include <linux/pm_domain.h>
#include <linux/pm_runtime.h>
+#include <linux/suspend.h>
#include "internal.h"
@@ -261,8 +262,10 @@ int acpi_bus_init_power(struct acpi_device *device)
return -EINVAL;
device->power.state = ACPI_STATE_UNKNOWN;
- if (!acpi_device_is_present(device))
+ if (!acpi_device_is_present(device)) {
+ device->flags.initialized = false;
return -ENXIO;
+ }
result = acpi_device_get_power(device, &state);
if (result)
@@ -385,6 +388,12 @@ EXPORT_SYMBOL(acpi_bus_power_manageable);
#ifdef CONFIG_PM
static DEFINE_MUTEX(acpi_pm_notifier_lock);
+void acpi_pm_wakeup_event(struct device *dev)
+{
+ pm_wakeup_dev_event(dev, 0, acpi_s2idle_wakeup());
+}
+EXPORT_SYMBOL_GPL(acpi_pm_wakeup_event);
+
static void acpi_pm_notify_handler(acpi_handle handle, u32 val, void *not_used)
{
struct acpi_device *adev;
@@ -392,6 +401,8 @@ static void acpi_pm_notify_handler(acpi_handle handle, u32 val, void *not_used)
if (val != ACPI_NOTIFY_DEVICE_WAKE)
return;
+ acpi_handle_debug(handle, "Wake notify\n");
+
adev = acpi_bus_get_acpi_device(handle);
if (!adev)
return;
@@ -399,9 +410,13 @@ static void acpi_pm_notify_handler(acpi_handle handle, u32 val, void *not_used)
mutex_lock(&acpi_pm_notifier_lock);
if (adev->wakeup.flags.notifier_present) {
- __pm_wakeup_event(adev->wakeup.ws, 0);
- if (adev->wakeup.context.work.func)
- queue_pm_work(&adev->wakeup.context.work);
+ pm_wakeup_ws_event(adev->wakeup.ws, 0, acpi_s2idle_wakeup());
+ if (adev->wakeup.context.func) {
+ acpi_handle_debug(handle, "Running %pF for %s\n",
+ adev->wakeup.context.func,
+ dev_name(adev->wakeup.context.dev));
+ adev->wakeup.context.func(&adev->wakeup.context);
+ }
}
mutex_unlock(&acpi_pm_notifier_lock);
@@ -413,7 +428,7 @@ static void acpi_pm_notify_handler(acpi_handle handle, u32 val, void *not_used)
* acpi_add_pm_notifier - Register PM notify handler for given ACPI device.
* @adev: ACPI device to add the notify handler for.
* @dev: Device to generate a wakeup event for while handling the notification.
- * @work_func: Work function to execute when handling the notification.
+ * @func: Work function to execute when handling the notification.
*
* NOTE: @adev need not be a run-wake or wakeup device to be a valid source of
* PM wakeup events. For example, wakeup events may be generated for bridges
@@ -421,11 +436,11 @@ static void acpi_pm_notify_handler(acpi_handle handle, u32 val, void *not_used)
* bridge itself doesn't have a wakeup GPE associated with it.
*/
acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev,
- void (*work_func)(struct work_struct *work))
+ void (*func)(struct acpi_device_wakeup_context *context))
{
acpi_status status = AE_ALREADY_EXISTS;
- if (!dev && !work_func)
+ if (!dev && !func)
return AE_BAD_PARAMETER;
mutex_lock(&acpi_pm_notifier_lock);
@@ -435,8 +450,7 @@ acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev,
adev->wakeup.ws = wakeup_source_register(dev_name(&adev->dev));
adev->wakeup.context.dev = dev;
- if (work_func)
- INIT_WORK(&adev->wakeup.context.work, work_func);
+ adev->wakeup.context.func = func;
status = acpi_install_notify_handler(adev->handle, ACPI_SYSTEM_NOTIFY,
acpi_pm_notify_handler, NULL);
@@ -469,10 +483,7 @@ acpi_status acpi_remove_pm_notifier(struct acpi_device *adev)
if (ACPI_FAILURE(status))
goto out;
- if (adev->wakeup.context.work.func) {
- cancel_work_sync(&adev->wakeup.context.work);
- adev->wakeup.context.work.func = NULL;
- }
+ adev->wakeup.context.func = NULL;
adev->wakeup.context.dev = NULL;
wakeup_source_unregister(adev->wakeup.ws);
@@ -493,6 +504,13 @@ bool acpi_bus_can_wakeup(acpi_handle handle)
}
EXPORT_SYMBOL(acpi_bus_can_wakeup);
+bool acpi_pm_device_can_wakeup(struct device *dev)
+{
+ struct acpi_device *adev = ACPI_COMPANION(dev);
+
+ return adev ? acpi_device_can_wakeup(adev) : false;
+}
+
/**
* acpi_dev_pm_get_state - Get preferred power state of ACPI device.
* @dev: Device whose preferred target power state to return.
@@ -658,115 +676,148 @@ EXPORT_SYMBOL(acpi_pm_device_sleep_state);
/**
* acpi_pm_notify_work_func - ACPI devices wakeup notification work function.
- * @work: Work item to handle.
+ * @context: Device wakeup context.
*/
-static void acpi_pm_notify_work_func(struct work_struct *work)
+static void acpi_pm_notify_work_func(struct acpi_device_wakeup_context *context)
{
- struct device *dev;
+ struct device *dev = context->dev;
- dev = container_of(work, struct acpi_device_wakeup_context, work)->dev;
if (dev) {
pm_wakeup_event(dev, 0);
- pm_runtime_resume(dev);
+ pm_request_resume(dev);
}
}
-/**
- * acpi_device_wakeup - Enable/disable wakeup functionality for device.
- * @adev: ACPI device to enable/disable wakeup functionality for.
- * @target_state: State the system is transitioning into.
- * @enable: Whether to enable or disable the wakeup functionality.
- *
- * Enable/disable the GPE associated with @adev so that it can generate
- * wakeup signals for the device in response to external (remote) events and
- * enable/disable device wakeup power.
- *
- * Callers must ensure that @adev is a valid ACPI device node before executing
- * this function.
- */
-static int acpi_device_wakeup(struct acpi_device *adev, u32 target_state,
- bool enable)
+static DEFINE_MUTEX(acpi_wakeup_lock);
+
+static int __acpi_device_wakeup_enable(struct acpi_device *adev,
+ u32 target_state, int max_count)
{
struct acpi_device_wakeup *wakeup = &adev->wakeup;
+ acpi_status status;
+ int error = 0;
- if (enable) {
- acpi_status res;
- int error;
+ mutex_lock(&acpi_wakeup_lock);
- error = acpi_enable_wakeup_device_power(adev, target_state);
- if (error)
- return error;
+ if (wakeup->enable_count >= max_count)
+ goto out;
- if (adev->wakeup.flags.enabled)
- return 0;
+ if (wakeup->enable_count > 0)
+ goto inc;
- res = acpi_enable_gpe(wakeup->gpe_device, wakeup->gpe_number);
- if (ACPI_SUCCESS(res)) {
- adev->wakeup.flags.enabled = 1;
- } else {
- acpi_disable_wakeup_device_power(adev);
- return -EIO;
- }
- } else {
- if (adev->wakeup.flags.enabled) {
- acpi_disable_gpe(wakeup->gpe_device, wakeup->gpe_number);
- adev->wakeup.flags.enabled = 0;
- }
+ error = acpi_enable_wakeup_device_power(adev, target_state);
+ if (error)
+ goto out;
+
+ status = acpi_enable_gpe(wakeup->gpe_device, wakeup->gpe_number);
+ if (ACPI_FAILURE(status)) {
acpi_disable_wakeup_device_power(adev);
+ error = -EIO;
+ goto out;
}
- return 0;
+
+inc:
+ wakeup->enable_count++;
+
+out:
+ mutex_unlock(&acpi_wakeup_lock);
+ return error;
}
/**
- * acpi_pm_device_run_wake - Enable/disable remote wakeup for given device.
- * @dev: Device to enable/disable the platform to wake up.
- * @enable: Whether to enable or disable the wakeup functionality.
+ * acpi_device_wakeup_enable - Enable wakeup functionality for device.
+ * @adev: ACPI device to enable wakeup functionality for.
+ * @target_state: State the system is transitioning into.
+ *
+ * Enable the GPE associated with @adev so that it can generate wakeup signals
+ * for the device in response to external (remote) events and enable wakeup
+ * power for it.
+ *
+ * Callers must ensure that @adev is a valid ACPI device node before executing
+ * this function.
*/
-int acpi_pm_device_run_wake(struct device *phys_dev, bool enable)
+static int acpi_device_wakeup_enable(struct acpi_device *adev, u32 target_state)
{
- struct acpi_device *adev;
+ return __acpi_device_wakeup_enable(adev, target_state, 1);
+}
- if (!device_run_wake(phys_dev))
- return -EINVAL;
+/**
+ * acpi_device_wakeup_disable - Disable wakeup functionality for device.
+ * @adev: ACPI device to disable wakeup functionality for.
+ *
+ * Disable the GPE associated with @adev and disable wakeup power for it.
+ *
+ * Callers must ensure that @adev is a valid ACPI device node before executing
+ * this function.
+ */
+static void acpi_device_wakeup_disable(struct acpi_device *adev)
+{
+ struct acpi_device_wakeup *wakeup = &adev->wakeup;
- adev = ACPI_COMPANION(phys_dev);
- if (!adev) {
- dev_dbg(phys_dev, "ACPI companion missing in %s!\n", __func__);
- return -ENODEV;
- }
+ mutex_lock(&acpi_wakeup_lock);
- return acpi_device_wakeup(adev, ACPI_STATE_S0, enable);
+ if (!wakeup->enable_count)
+ goto out;
+
+ acpi_disable_gpe(wakeup->gpe_device, wakeup->gpe_number);
+ acpi_disable_wakeup_device_power(adev);
+
+ wakeup->enable_count--;
+
+out:
+ mutex_unlock(&acpi_wakeup_lock);
}
-EXPORT_SYMBOL(acpi_pm_device_run_wake);
-#ifdef CONFIG_PM_SLEEP
-/**
- * acpi_pm_device_sleep_wake - Enable or disable device to wake up the system.
- * @dev: Device to enable/desible to wake up the system from sleep states.
- * @enable: Whether to enable or disable @dev to wake up the system.
- */
-int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
+static int __acpi_pm_set_device_wakeup(struct device *dev, bool enable,
+ int max_count)
{
struct acpi_device *adev;
int error;
- if (!device_can_wakeup(dev))
- return -EINVAL;
-
adev = ACPI_COMPANION(dev);
if (!adev) {
dev_dbg(dev, "ACPI companion missing in %s!\n", __func__);
return -ENODEV;
}
- error = acpi_device_wakeup(adev, acpi_target_system_state(), enable);
+ if (!acpi_device_can_wakeup(adev))
+ return -EINVAL;
+
+ if (!enable) {
+ acpi_device_wakeup_disable(adev);
+ dev_dbg(dev, "Wakeup disabled by ACPI\n");
+ return 0;
+ }
+
+ error = __acpi_device_wakeup_enable(adev, acpi_target_system_state(),
+ max_count);
if (!error)
- dev_info(dev, "System wakeup %s by ACPI\n",
- enable ? "enabled" : "disabled");
+ dev_dbg(dev, "Wakeup enabled by ACPI\n");
return error;
}
-#endif /* CONFIG_PM_SLEEP */
+
+/**
+ * acpi_pm_set_device_wakeup - Enable/disable remote wakeup for given device.
+ * @dev: Device to enable/disable to generate wakeup events.
+ * @enable: Whether to enable or disable the wakeup functionality.
+ */
+int acpi_pm_set_device_wakeup(struct device *dev, bool enable)
+{
+ return __acpi_pm_set_device_wakeup(dev, enable, 1);
+}
+EXPORT_SYMBOL_GPL(acpi_pm_set_device_wakeup);
+
+/**
+ * acpi_pm_set_bridge_wakeup - Enable/disable remote wakeup for given bridge.
+ * @dev: Bridge device to enable/disable to generate wakeup events.
+ * @enable: Whether to enable or disable the wakeup functionality.
+ */
+int acpi_pm_set_bridge_wakeup(struct device *dev, bool enable)
+{
+ return __acpi_pm_set_device_wakeup(dev, enable, INT_MAX);
+}
+EXPORT_SYMBOL_GPL(acpi_pm_set_bridge_wakeup);
/**
* acpi_dev_pm_low_power - Put ACPI device into a low-power state.
@@ -816,13 +867,15 @@ int acpi_dev_runtime_suspend(struct device *dev)
remote_wakeup = dev_pm_qos_flags(dev, PM_QOS_FLAG_REMOTE_WAKEUP) >
PM_QOS_FLAGS_NONE;
- error = acpi_device_wakeup(adev, ACPI_STATE_S0, remote_wakeup);
- if (remote_wakeup && error)
- return -EAGAIN;
+ if (remote_wakeup) {
+ error = acpi_device_wakeup_enable(adev, ACPI_STATE_S0);
+ if (error)
+ return -EAGAIN;
+ }
error = acpi_dev_pm_low_power(dev, adev, ACPI_STATE_S0);
- if (error)
- acpi_device_wakeup(adev, ACPI_STATE_S0, false);
+ if (error && remote_wakeup)
+ acpi_device_wakeup_disable(adev);
return error;
}
@@ -845,7 +898,7 @@ int acpi_dev_runtime_resume(struct device *dev)
return 0;
error = acpi_dev_pm_full_power(adev);
- acpi_device_wakeup(adev, ACPI_STATE_S0, false);
+ acpi_device_wakeup_disable(adev);
return error;
}
EXPORT_SYMBOL_GPL(acpi_dev_runtime_resume);
@@ -900,13 +953,15 @@ int acpi_dev_suspend_late(struct device *dev)
target_state = acpi_target_system_state();
wakeup = device_may_wakeup(dev) && acpi_device_can_wakeup(adev);
- error = acpi_device_wakeup(adev, target_state, wakeup);
- if (wakeup && error)
- return error;
+ if (wakeup) {
+ error = acpi_device_wakeup_enable(adev, target_state);
+ if (error)
+ return error;
+ }
error = acpi_dev_pm_low_power(dev, adev, target_state);
- if (error)
- acpi_device_wakeup(adev, ACPI_STATE_UNKNOWN, false);
+ if (error && wakeup)
+ acpi_device_wakeup_disable(adev);
return error;
}
@@ -929,7 +984,7 @@ int acpi_dev_resume_early(struct device *dev)
return 0;
error = acpi_dev_pm_full_power(adev);
- acpi_device_wakeup(adev, ACPI_STATE_UNKNOWN, false);
+ acpi_device_wakeup_disable(adev);
return error;
}
EXPORT_SYMBOL_GPL(acpi_dev_resume_early);
@@ -1072,7 +1127,7 @@ static void acpi_dev_pm_detach(struct device *dev, bool power_off)
*/
dev_pm_qos_hide_latency_limit(dev);
dev_pm_qos_hide_flags(dev);
- acpi_device_wakeup(adev, ACPI_STATE_S0, false);
+ acpi_device_wakeup_disable(adev);
acpi_dev_pm_low_power(dev, adev, ACPI_STATE_S0);
}
}
@@ -1116,7 +1171,7 @@ int acpi_dev_pm_attach(struct device *dev, bool power_on)
dev_pm_domain_set(dev, &acpi_general_pm_domain);
if (power_on) {
acpi_dev_pm_full_power(adev);
- acpi_device_wakeup(adev, ACPI_STATE_S0, false);
+ acpi_device_wakeup_disable(adev);
}
dev->pm_domain->detach = acpi_dev_pm_detach;
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 0c00208b423e..2305e1ab978e 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -585,7 +585,7 @@ static struct attribute *dock_attributes[] = {
NULL
};
-static struct attribute_group dock_attribute_group = {
+static const struct attribute_group dock_attribute_group = {
.attrs = dock_attributes
};
diff --git a/drivers/acpi/dptf/dptf_power.c b/drivers/acpi/dptf/dptf_power.c
index 734642dc5008..e1c242568341 100644
--- a/drivers/acpi/dptf/dptf_power.c
+++ b/drivers/acpi/dptf/dptf_power.c
@@ -65,7 +65,7 @@ static struct attribute *dptf_power_attrs[] = {
NULL
};
-static struct attribute_group dptf_power_attribute_group = {
+static const struct attribute_group dptf_power_attribute_group = {
.attrs = dptf_power_attrs,
.name = "dptf_power"
};
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index c24235d8fb52..236b14324780 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -27,7 +27,7 @@
/* Uncomment next line to get verbose printout */
/* #define DEBUG */
-#define pr_fmt(fmt) "ACPI : EC: " fmt
+#define pr_fmt(fmt) "ACPI: EC: " fmt
#include <linux/kernel.h>
#include <linux/module.h>
@@ -112,8 +112,7 @@ enum {
EC_FLAGS_EVT_HANDLER_INSTALLED, /* _Qxx handlers installed */
EC_FLAGS_STARTED, /* Driver is started */
EC_FLAGS_STOPPED, /* Driver is stopped */
- EC_FLAGS_COMMAND_STORM, /* GPE storms occurred to the
- * current command processing */
+ EC_FLAGS_GPE_MASKED, /* GPE masked */
};
#define ACPI_EC_COMMAND_POLL 0x01 /* Available for command byte */
@@ -147,10 +146,14 @@ static unsigned int ec_storm_threshold __read_mostly = 8;
module_param(ec_storm_threshold, uint, 0644);
MODULE_PARM_DESC(ec_storm_threshold, "Maxim false GPE numbers not considered as GPE storm");
-static bool ec_freeze_events __read_mostly = true;
+static bool ec_freeze_events __read_mostly = false;
module_param(ec_freeze_events, bool, 0644);
MODULE_PARM_DESC(ec_freeze_events, "Disabling event handling during suspend/resume");
+static bool ec_no_wakeup __read_mostly;
+module_param(ec_no_wakeup, bool, 0644);
+MODULE_PARM_DESC(ec_no_wakeup, "Do not wake up from suspend-to-idle");
+
struct acpi_ec_query_handler {
struct list_head node;
acpi_ec_query_func func;
@@ -190,6 +193,7 @@ static struct workqueue_struct *ec_query_wq;
static int EC_FLAGS_QUERY_HANDSHAKE; /* Needs QR_EC issued when SCI_EVT set */
static int EC_FLAGS_CORRECT_ECDT; /* Needs ECDT port address correction */
+static int EC_FLAGS_IGNORE_DSDT_GPE; /* Needs ECDT GPE as correction setting */
/* --------------------------------------------------------------------------
* Logging/Debugging
@@ -316,7 +320,7 @@ static inline void acpi_ec_write_data(struct acpi_ec *ec, u8 data)
ec->timestamp = jiffies;
}
-#ifdef DEBUG
+#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG)
static const char *acpi_ec_cmd_string(u8 cmd)
{
switch (cmd) {
@@ -420,19 +424,19 @@ static void acpi_ec_complete_request(struct acpi_ec *ec)
wake_up(&ec->wait);
}
-static void acpi_ec_set_storm(struct acpi_ec *ec, u8 flag)
+static void acpi_ec_mask_gpe(struct acpi_ec *ec)
{
- if (!test_bit(flag, &ec->flags)) {
+ if (!test_bit(EC_FLAGS_GPE_MASKED, &ec->flags)) {
acpi_ec_disable_gpe(ec, false);
ec_dbg_drv("Polling enabled");
- set_bit(flag, &ec->flags);
+ set_bit(EC_FLAGS_GPE_MASKED, &ec->flags);
}
}
-static void acpi_ec_clear_storm(struct acpi_ec *ec, u8 flag)
+static void acpi_ec_unmask_gpe(struct acpi_ec *ec)
{
- if (test_bit(flag, &ec->flags)) {
- clear_bit(flag, &ec->flags);
+ if (test_bit(EC_FLAGS_GPE_MASKED, &ec->flags)) {
+ clear_bit(EC_FLAGS_GPE_MASKED, &ec->flags);
acpi_ec_enable_gpe(ec, false);
ec_dbg_drv("Polling disabled");
}
@@ -459,8 +463,10 @@ static bool acpi_ec_submit_flushable_request(struct acpi_ec *ec)
static void acpi_ec_submit_query(struct acpi_ec *ec)
{
- if (acpi_ec_event_enabled(ec) &&
- !test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) {
+ acpi_ec_mask_gpe(ec);
+ if (!acpi_ec_event_enabled(ec))
+ return;
+ if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) {
ec_dbg_evt("Command(%s) submitted/blocked",
acpi_ec_cmd_string(ACPI_EC_COMMAND_QUERY));
ec->nr_pending_queries++;
@@ -470,11 +476,10 @@ static void acpi_ec_submit_query(struct acpi_ec *ec)
static void acpi_ec_complete_query(struct acpi_ec *ec)
{
- if (test_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) {
- clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags);
+ if (test_and_clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags))
ec_dbg_evt("Command(%s) unblocked",
acpi_ec_cmd_string(ACPI_EC_COMMAND_QUERY));
- }
+ acpi_ec_unmask_gpe(ec);
}
static inline void __acpi_ec_enable_event(struct acpi_ec *ec)
@@ -533,6 +538,14 @@ static void acpi_ec_disable_event(struct acpi_ec *ec)
spin_unlock_irqrestore(&ec->lock, flags);
__acpi_ec_flush_event(ec);
}
+
+void acpi_ec_flush_work(void)
+{
+ if (first_ec)
+ __acpi_ec_flush_event(first_ec);
+
+ flush_scheduled_work();
+}
#endif /* CONFIG_PM_SLEEP */
static bool acpi_ec_guard_event(struct acpi_ec *ec)
@@ -686,7 +699,7 @@ err:
++t->irq_count;
/* Allow triggering on 0 threshold */
if (t->irq_count == ec_storm_threshold)
- acpi_ec_set_storm(ec, EC_FLAGS_COMMAND_STORM);
+ acpi_ec_mask_gpe(ec);
}
}
out:
@@ -784,7 +797,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec,
spin_lock_irqsave(&ec->lock, tmp);
if (t->irq_count == ec_storm_threshold)
- acpi_ec_clear_storm(ec, EC_FLAGS_COMMAND_STORM);
+ acpi_ec_unmask_gpe(ec);
ec_dbg_req("Command(%s) stopped", acpi_ec_cmd_string(t->command));
ec->curr = NULL;
/* Disable GPE for command processing (IBF=0/OBF=1) */
@@ -1362,13 +1375,23 @@ ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval)
ec_parse_io_ports, ec);
if (ACPI_FAILURE(status))
return status;
+ if (ec->data_addr == 0 || ec->command_addr == 0)
+ return AE_OK;
- /* Get GPE bit assignment (EC events). */
- /* TODO: Add support for _GPE returning a package */
- status = acpi_evaluate_integer(handle, "_GPE", NULL, &tmp);
- if (ACPI_FAILURE(status))
- return status;
- ec->gpe = tmp;
+ if (boot_ec && boot_ec_is_ecdt && EC_FLAGS_IGNORE_DSDT_GPE) {
+ /*
+ * Always inherit the GPE number setting from the ECDT
+ * EC.
+ */
+ ec->gpe = boot_ec->gpe;
+ } else {
+ /* Get GPE bit assignment (EC events). */
+ /* TODO: Add support for _GPE returning a package */
+ status = acpi_evaluate_integer(handle, "_GPE", NULL, &tmp);
+ if (ACPI_FAILURE(status))
+ return status;
+ ec->gpe = tmp;
+ }
/* Use the global lock for all EC transactions? */
tmp = 0;
acpi_evaluate_integer(handle, "_GLK", NULL, &tmp);
@@ -1562,9 +1585,7 @@ static bool acpi_is_boot_ec(struct acpi_ec *ec)
{
if (!boot_ec)
return false;
- if (ec->handle == boot_ec->handle &&
- ec->gpe == boot_ec->gpe &&
- ec->command_addr == boot_ec->command_addr &&
+ if (ec->command_addr == boot_ec->command_addr &&
ec->data_addr == boot_ec->data_addr)
return true;
return false;
@@ -1589,6 +1610,13 @@ static int acpi_ec_add(struct acpi_device *device)
if (acpi_is_boot_ec(ec)) {
boot_ec_is_ecdt = false;
+ /*
+ * Trust PNP0C09 namespace location rather than ECDT ID.
+ *
+ * But trust ECDT GPE rather than _GPE because of ASUS quirks,
+ * so do not change boot_ec->gpe to ec->gpe.
+ */
+ boot_ec->handle = ec->handle;
acpi_handle_debug(ec->handle, "duplicated.\n");
acpi_ec_free(ec);
ec = boot_ec;
@@ -1665,12 +1693,26 @@ static const struct acpi_device_id ec_device_ids[] = {
{"", 0},
};
+/*
+ * This function is not Windows-compatible as Windows never enumerates the
+ * namespace EC before the main ACPI device enumeration process. It is
+ * retained for historical reason and will be deprecated in the future.
+ */
int __init acpi_ec_dsdt_probe(void)
{
acpi_status status;
struct acpi_ec *ec;
int ret;
+ /*
+ * If a platform has ECDT, there is no need to proceed as the
+ * following probe is not a part of the ACPI device enumeration,
+ * executing _STA is not safe, and thus this probe may risk of
+ * picking up an invalid EC device.
+ */
+ if (boot_ec)
+ return -ENODEV;
+
ec = acpi_ec_alloc();
if (!ec)
return -ENOMEM;
@@ -1703,24 +1745,26 @@ error:
* functioning ECDT EC first in order to handle the events.
* https://bugzilla.kernel.org/show_bug.cgi?id=115021
*/
-int __init acpi_ec_ecdt_start(void)
+static int __init acpi_ec_ecdt_start(void)
{
acpi_handle handle;
if (!boot_ec)
return -ENODEV;
- /*
- * The DSDT EC should have already been started in
- * acpi_ec_add().
- */
+ /* In case acpi_ec_ecdt_start() is called after acpi_ec_add() */
if (!boot_ec_is_ecdt)
return -ENODEV;
/*
* At this point, the namespace and the GPE is initialized, so
* start to find the namespace objects and handle the events.
+ *
+ * Note: ec->handle can be valid if this function is called after
+ * acpi_ec_add(), hence the fast path.
*/
- if (!acpi_ec_ecdt_get_handle(&handle))
+ if (boot_ec->handle != ACPI_ROOT_OBJECT)
+ handle = boot_ec->handle;
+ else if (!acpi_ec_ecdt_get_handle(&handle))
return -ENODEV;
return acpi_config_boot_ec(boot_ec, handle, true, true);
}
@@ -1753,11 +1797,43 @@ static int ec_correct_ecdt(const struct dmi_system_id *id)
return 0;
}
-static struct dmi_system_id ec_dmi_table[] __initdata = {
+/*
+ * Some DSDTs contain wrong GPE setting.
+ * Asus FX502VD/VE, GL702VMK, X550VXK, X580VD
+ * https://bugzilla.kernel.org/show_bug.cgi?id=195651
+ */
+static int ec_honor_ecdt_gpe(const struct dmi_system_id *id)
+{
+ pr_debug("Detected system needing ignore DSDT GPE setting.\n");
+ EC_FLAGS_IGNORE_DSDT_GPE = 1;
+ return 0;
+}
+
+static const struct dmi_system_id ec_dmi_table[] __initconst = {
{
ec_correct_ecdt, "MSI MS-171F", {
DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star"),
DMI_MATCH(DMI_PRODUCT_NAME, "MS-171F"),}, NULL},
+ {
+ ec_honor_ecdt_gpe, "ASUS FX502VD", {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "FX502VD"),}, NULL},
+ {
+ ec_honor_ecdt_gpe, "ASUS FX502VE", {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "FX502VE"),}, NULL},
+ {
+ ec_honor_ecdt_gpe, "ASUS GL702VMK", {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "GL702VMK"),}, NULL},
+ {
+ ec_honor_ecdt_gpe, "ASUS X550VXK", {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X550VXK"),}, NULL},
+ {
+ ec_honor_ecdt_gpe, "ASUS X580VD", {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X580VD"),}, NULL},
{},
};
@@ -1812,31 +1888,39 @@ error:
}
#ifdef CONFIG_PM_SLEEP
-static int acpi_ec_suspend_noirq(struct device *dev)
+static int acpi_ec_suspend(struct device *dev)
{
struct acpi_ec *ec =
acpi_driver_data(to_acpi_device(dev));
- acpi_ec_enter_noirq(ec);
+ if (acpi_sleep_no_ec_events() && ec_freeze_events)
+ acpi_ec_disable_event(ec);
return 0;
}
-static int acpi_ec_resume_noirq(struct device *dev)
+static int acpi_ec_suspend_noirq(struct device *dev)
{
- struct acpi_ec *ec =
- acpi_driver_data(to_acpi_device(dev));
+ struct acpi_ec *ec = acpi_driver_data(to_acpi_device(dev));
+
+ /*
+ * The SCI handler doesn't run at this point, so the GPE can be
+ * masked at the low level without side effects.
+ */
+ if (ec_no_wakeup && test_bit(EC_FLAGS_STARTED, &ec->flags) &&
+ ec->reference_count >= 1)
+ acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_DISABLE);
- acpi_ec_leave_noirq(ec);
return 0;
}
-static int acpi_ec_suspend(struct device *dev)
+static int acpi_ec_resume_noirq(struct device *dev)
{
- struct acpi_ec *ec =
- acpi_driver_data(to_acpi_device(dev));
+ struct acpi_ec *ec = acpi_driver_data(to_acpi_device(dev));
+
+ if (ec_no_wakeup && test_bit(EC_FLAGS_STARTED, &ec->flags) &&
+ ec->reference_count >= 1)
+ acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_ENABLE);
- if (ec_freeze_events)
- acpi_ec_disable_event(ec);
return 0;
}
@@ -1925,20 +2009,17 @@ static inline void acpi_ec_query_exit(void)
int __init acpi_ec_init(void)
{
int result;
+ int ecdt_fail, dsdt_fail;
/* register workqueue for _Qxx evaluations */
result = acpi_ec_query_init();
if (result)
- goto err_exit;
- /* Now register the driver for the EC */
- result = acpi_bus_register_driver(&acpi_ec_driver);
- if (result)
- goto err_exit;
+ return result;
-err_exit:
- if (result)
- acpi_ec_query_exit();
- return result;
+ /* Drivers must be started after acpi_ec_query_init() */
+ dsdt_fail = acpi_bus_register_driver(&acpi_ec_driver);
+ ecdt_fail = acpi_ec_ecdt_start();
+ return ecdt_fail && dsdt_fail ? -ENODEV : 0;
}
/* EC driver currently not unloadable */
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 66229ffa909b..4361c4415b4f 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -111,7 +111,7 @@ int acpi_device_setup_files(struct acpi_device *dev);
void acpi_device_remove_files(struct acpi_device *dev);
void acpi_device_add_finalize(struct acpi_device *device);
void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
-bool acpi_device_is_present(struct acpi_device *adev);
+bool acpi_device_is_present(const struct acpi_device *adev);
bool acpi_device_is_battery(struct acpi_device *adev);
bool acpi_device_is_first_physical_node(struct acpi_device *adev,
const struct device *dev);
@@ -185,7 +185,6 @@ typedef int (*acpi_ec_query_func) (void *data);
int acpi_ec_init(void);
int acpi_ec_ecdt_probe(void);
int acpi_ec_dsdt_probe(void);
-int acpi_ec_ecdt_start(void);
void acpi_ec_block_transactions(void);
void acpi_ec_unblock_transactions(void);
int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
@@ -193,13 +192,21 @@ int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
void *data);
void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
+#ifdef CONFIG_PM_SLEEP
+void acpi_ec_flush_work(void);
+#endif
+
/*--------------------------------------------------------------------------
Suspend/Resume
-------------------------------------------------------------------------- */
#ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
+extern bool acpi_s2idle_wakeup(void);
+extern bool acpi_sleep_no_ec_events(void);
extern int acpi_sleep_init(void);
#else
+static inline bool acpi_s2idle_wakeup(void) { return false; }
+static inline bool acpi_sleep_no_ec_events(void) { return true; }
static inline int acpi_sleep_init(void) { return -ENXIO; }
#endif
@@ -225,6 +232,12 @@ static inline void suspend_nvs_restore(void) {}
void acpi_init_properties(struct acpi_device *adev);
void acpi_free_properties(struct acpi_device *adev);
+#ifdef CONFIG_X86
+void acpi_extract_apple_properties(struct acpi_device *adev);
+#else
+static inline void acpi_extract_apple_properties(struct acpi_device *adev) {}
+#endif
+
/*--------------------------------------------------------------------------
Watchdog
-------------------------------------------------------------------------- */
diff --git a/drivers/acpi/ioapic.c b/drivers/acpi/ioapic.c
index 7e4fbf9a53a3..3595aa9c7c18 100644
--- a/drivers/acpi/ioapic.c
+++ b/drivers/acpi/ioapic.c
@@ -21,7 +21,7 @@
* registered when we parsed the ACPI MADT.
*/
-#define pr_fmt(fmt) "ACPI : IOAPIC: " fmt
+#define pr_fmt(fmt) "ACPI: IOAPIC: " fmt
#include <linux/slab.h>
#include <linux/acpi.h>
diff --git a/drivers/acpi/irq.c b/drivers/acpi/irq.c
index 830299a74b84..7c352cba0528 100644
--- a/drivers/acpi/irq.c
+++ b/drivers/acpi/irq.c
@@ -24,7 +24,7 @@ static struct fwnode_handle *acpi_gsi_domain_id;
*
* irq location updated with irq value [>0 on success, 0 on failure]
*
- * Returns: linux IRQ number on success (>0)
+ * Returns: 0 on success
* -EINVAL on failure
*/
int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
@@ -37,7 +37,7 @@ int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
* *irq == 0 means no mapping, that should
* be reported as a failure
*/
- return (*irq > 0) ? *irq : -EINVAL;
+ return (*irq > 0) ? 0 : -EINVAL;
}
EXPORT_SYMBOL_GPL(acpi_gsi_to_irq);
diff --git a/drivers/acpi/nfit/Kconfig b/drivers/acpi/nfit/Kconfig
index 6d3351452ea2..929ba4da0b30 100644
--- a/drivers/acpi/nfit/Kconfig
+++ b/drivers/acpi/nfit/Kconfig
@@ -2,7 +2,7 @@ config ACPI_NFIT
tristate "ACPI NVDIMM Firmware Interface Table (NFIT)"
depends on PHYS_ADDR_T_64BIT
depends on BLK_DEV
- depends on ARCH_HAS_MMIO_FLUSH
+ depends on ARCH_HAS_PMEM_API
select LIBNVDIMM
help
Infrastructure to probe ACPI 6 compliant platforms for
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index 656acb5d7166..9c2c49b6a240 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -20,7 +20,6 @@
#include <linux/list.h>
#include <linux/acpi.h>
#include <linux/sort.h>
-#include <linux/pmem.h>
#include <linux/io.h>
#include <linux/nd.h>
#include <asm/cacheflush.h>
@@ -74,11 +73,11 @@ struct nfit_table_prev {
struct list_head flushes;
};
-static u8 nfit_uuid[NFIT_UUID_MAX][16];
+static guid_t nfit_uuid[NFIT_UUID_MAX];
-const u8 *to_nfit_uuid(enum nfit_uuids id)
+const guid_t *to_nfit_uuid(enum nfit_uuids id)
{
- return nfit_uuid[id];
+ return &nfit_uuid[id];
}
EXPORT_SYMBOL(to_nfit_uuid);
@@ -222,13 +221,17 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
u32 offset, fw_status = 0;
acpi_handle handle;
unsigned int func;
- const u8 *uuid;
+ const guid_t *guid;
int rc, i;
func = cmd;
if (cmd == ND_CMD_CALL) {
call_pkg = buf;
func = call_pkg->nd_command;
+
+ for (i = 0; i < ARRAY_SIZE(call_pkg->nd_reserved2); i++)
+ if (call_pkg->nd_reserved2[i])
+ return -EINVAL;
}
if (nvdimm) {
@@ -245,7 +248,7 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
cmd_mask = nvdimm_cmd_mask(nvdimm);
dsm_mask = nfit_mem->dsm_mask;
desc = nd_cmd_dimm_desc(cmd);
- uuid = to_nfit_uuid(nfit_mem->family);
+ guid = to_nfit_uuid(nfit_mem->family);
handle = adev->handle;
} else {
struct acpi_device *adev = to_acpi_dev(acpi_desc);
@@ -253,8 +256,10 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
cmd_name = nvdimm_bus_cmd_name(cmd);
cmd_mask = nd_desc->cmd_mask;
dsm_mask = cmd_mask;
+ if (cmd == ND_CMD_CALL)
+ dsm_mask = nd_desc->bus_dsm_mask;
desc = nd_cmd_bus_desc(cmd);
- uuid = to_nfit_uuid(NFIT_DEV_BUS);
+ guid = to_nfit_uuid(NFIT_DEV_BUS);
handle = adev->handle;
dimm_name = "bus";
}
@@ -289,7 +294,7 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
in_buf.buffer.pointer,
min_t(u32, 256, in_buf.buffer.length), true);
- out_obj = acpi_evaluate_dsm(handle, uuid, 1, func, &in_obj);
+ out_obj = acpi_evaluate_dsm(handle, guid, 1, func, &in_obj);
if (!out_obj) {
dev_dbg(dev, "%s:%s _DSM failed cmd: %s\n", __func__, dimm_name,
cmd_name);
@@ -409,7 +414,7 @@ int nfit_spa_type(struct acpi_nfit_system_address *spa)
int i;
for (i = 0; i < NFIT_UUID_MAX; i++)
- if (memcmp(to_nfit_uuid(i), spa->range_guid, 16) == 0)
+ if (guid_equal(to_nfit_uuid(i), (guid_t *)&spa->range_guid))
return i;
return -1;
}
@@ -927,6 +932,17 @@ static int nfit_mem_init(struct acpi_nfit_desc *acpi_desc)
return 0;
}
+static ssize_t bus_dsm_mask_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct nvdimm_bus *nvdimm_bus = to_nvdimm_bus(dev);
+ struct nvdimm_bus_descriptor *nd_desc = to_nd_desc(nvdimm_bus);
+
+ return sprintf(buf, "%#lx\n", nd_desc->bus_dsm_mask);
+}
+static struct device_attribute dev_attr_bus_dsm_mask =
+ __ATTR(dsm_mask, 0444, bus_dsm_mask_show, NULL);
+
static ssize_t revision_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -1031,7 +1047,7 @@ static ssize_t scrub_store(struct device *dev,
if (nd_desc) {
struct acpi_nfit_desc *acpi_desc = to_acpi_desc(nd_desc);
- rc = acpi_nfit_ars_rescan(acpi_desc);
+ rc = acpi_nfit_ars_rescan(acpi_desc, 0);
}
device_unlock(dev);
if (rc)
@@ -1063,10 +1079,11 @@ static struct attribute *acpi_nfit_attributes[] = {
&dev_attr_revision.attr,
&dev_attr_scrub.attr,
&dev_attr_hw_error_scrub.attr,
+ &dev_attr_bus_dsm_mask.attr,
NULL,
};
-static struct attribute_group acpi_nfit_attribute_group = {
+static const struct attribute_group acpi_nfit_attribute_group = {
.name = "nfit",
.attrs = acpi_nfit_attributes,
.is_visible = nfit_visible,
@@ -1346,7 +1363,7 @@ static umode_t acpi_nfit_dimm_attr_visible(struct kobject *kobj,
return a->mode;
}
-static struct attribute_group acpi_nfit_dimm_attribute_group = {
+static const struct attribute_group acpi_nfit_dimm_attribute_group = {
.name = "nfit",
.attrs = acpi_nfit_dimm_attributes,
.is_visible = acpi_nfit_dimm_attr_visible,
@@ -1415,7 +1432,7 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
struct acpi_device *adev, *adev_dimm;
struct device *dev = acpi_desc->dev;
unsigned long dsm_mask;
- const u8 *uuid;
+ const guid_t *guid;
int i;
int family = -1;
@@ -1444,7 +1461,7 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
/*
* Until standardization materializes we need to consider 4
* different command sets. Note, that checking for function0 (bit0)
- * tells us if any commands are reachable through this uuid.
+ * tells us if any commands are reachable through this GUID.
*/
for (i = NVDIMM_FAMILY_INTEL; i <= NVDIMM_FAMILY_MSFT; i++)
if (acpi_check_dsm(adev_dimm->handle, to_nfit_uuid(i), 1, 1))
@@ -1474,9 +1491,9 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
return 0;
}
- uuid = to_nfit_uuid(nfit_mem->family);
+ guid = to_nfit_uuid(nfit_mem->family);
for_each_set_bit(i, &dsm_mask, BITS_PER_LONG)
- if (acpi_check_dsm(adev_dimm->handle, uuid, 1, 1ULL << i))
+ if (acpi_check_dsm(adev_dimm->handle, guid, 1, 1ULL << i))
set_bit(i, &nfit_mem->dsm_mask);
return 0;
@@ -1608,11 +1625,23 @@ static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc)
acpi_desc);
}
+/*
+ * These constants are private because there are no kernel consumers of
+ * these commands.
+ */
+enum nfit_aux_cmds {
+ NFIT_CMD_TRANSLATE_SPA = 5,
+ NFIT_CMD_ARS_INJECT_SET = 7,
+ NFIT_CMD_ARS_INJECT_CLEAR = 8,
+ NFIT_CMD_ARS_INJECT_GET = 9,
+};
+
static void acpi_nfit_init_dsms(struct acpi_nfit_desc *acpi_desc)
{
struct nvdimm_bus_descriptor *nd_desc = &acpi_desc->nd_desc;
- const u8 *uuid = to_nfit_uuid(NFIT_DEV_BUS);
+ const guid_t *guid = to_nfit_uuid(NFIT_DEV_BUS);
struct acpi_device *adev;
+ unsigned long dsm_mask;
int i;
nd_desc->cmd_mask = acpi_desc->bus_cmd_force_en;
@@ -1621,8 +1650,22 @@ static void acpi_nfit_init_dsms(struct acpi_nfit_desc *acpi_desc)
return;
for (i = ND_CMD_ARS_CAP; i <= ND_CMD_CLEAR_ERROR; i++)
- if (acpi_check_dsm(adev->handle, uuid, 1, 1ULL << i))
+ if (acpi_check_dsm(adev->handle, guid, 1, 1ULL << i))
set_bit(i, &nd_desc->cmd_mask);
+ set_bit(ND_CMD_CALL, &nd_desc->cmd_mask);
+
+ dsm_mask =
+ (1 << ND_CMD_ARS_CAP) |
+ (1 << ND_CMD_ARS_START) |
+ (1 << ND_CMD_ARS_STATUS) |
+ (1 << ND_CMD_CLEAR_ERROR) |
+ (1 << NFIT_CMD_TRANSLATE_SPA) |
+ (1 << NFIT_CMD_ARS_INJECT_SET) |
+ (1 << NFIT_CMD_ARS_INJECT_CLEAR) |
+ (1 << NFIT_CMD_ARS_INJECT_GET);
+ for_each_set_bit(i, &dsm_mask, BITS_PER_LONG)
+ if (acpi_check_dsm(adev->handle, guid, 1, 1ULL << i))
+ set_bit(i, &nd_desc->bus_dsm_mask);
}
static ssize_t range_index_show(struct device *dev,
@@ -1635,12 +1678,23 @@ static ssize_t range_index_show(struct device *dev,
}
static DEVICE_ATTR_RO(range_index);
+static ssize_t ecc_unit_size_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct nd_region *nd_region = to_nd_region(dev);
+ struct nfit_spa *nfit_spa = nd_region_provider_data(nd_region);
+
+ return sprintf(buf, "%d\n", nfit_spa->clear_err_unit);
+}
+static DEVICE_ATTR_RO(ecc_unit_size);
+
static struct attribute *acpi_nfit_region_attributes[] = {
&dev_attr_range_index.attr,
+ &dev_attr_ecc_unit_size.attr,
NULL,
};
-static struct attribute_group acpi_nfit_region_attribute_group = {
+static const struct attribute_group acpi_nfit_region_attribute_group = {
.name = "nfit",
.attrs = acpi_nfit_region_attributes,
};
@@ -1663,12 +1717,29 @@ struct nfit_set_info {
} mapping[0];
};
+struct nfit_set_info2 {
+ struct nfit_set_info_map2 {
+ u64 region_offset;
+ u32 serial_number;
+ u16 vendor_id;
+ u16 manufacturing_date;
+ u8 manufacturing_location;
+ u8 reserved[31];
+ } mapping[0];
+};
+
static size_t sizeof_nfit_set_info(int num_mappings)
{
return sizeof(struct nfit_set_info)
+ num_mappings * sizeof(struct nfit_set_info_map);
}
+static size_t sizeof_nfit_set_info2(int num_mappings)
+{
+ return sizeof(struct nfit_set_info2)
+ + num_mappings * sizeof(struct nfit_set_info_map2);
+}
+
static int cmp_map_compat(const void *m0, const void *m1)
{
const struct nfit_set_info_map *map0 = m0;
@@ -1690,6 +1761,18 @@ static int cmp_map(const void *m0, const void *m1)
return 0;
}
+static int cmp_map2(const void *m0, const void *m1)
+{
+ const struct nfit_set_info_map2 *map0 = m0;
+ const struct nfit_set_info_map2 *map1 = m1;
+
+ if (map0->region_offset < map1->region_offset)
+ return -1;
+ else if (map0->region_offset > map1->region_offset)
+ return 1;
+ return 0;
+}
+
/* Retrieve the nth entry referencing this spa */
static struct acpi_nfit_memory_map *memdev_from_spa(
struct acpi_nfit_desc *acpi_desc, u16 range_index, int n)
@@ -1707,31 +1790,36 @@ static int acpi_nfit_init_interleave_set(struct acpi_nfit_desc *acpi_desc,
struct nd_region_desc *ndr_desc,
struct acpi_nfit_system_address *spa)
{
- int i, spa_type = nfit_spa_type(spa);
struct device *dev = acpi_desc->dev;
struct nd_interleave_set *nd_set;
u16 nr = ndr_desc->num_mappings;
+ struct nfit_set_info2 *info2;
struct nfit_set_info *info;
-
- if (spa_type == NFIT_SPA_PM || spa_type == NFIT_SPA_VOLATILE)
- /* pass */;
- else
- return 0;
+ int i;
nd_set = devm_kzalloc(dev, sizeof(*nd_set), GFP_KERNEL);
if (!nd_set)
return -ENOMEM;
+ ndr_desc->nd_set = nd_set;
+ guid_copy(&nd_set->type_guid, (guid_t *) spa->range_guid);
info = devm_kzalloc(dev, sizeof_nfit_set_info(nr), GFP_KERNEL);
if (!info)
return -ENOMEM;
+
+ info2 = devm_kzalloc(dev, sizeof_nfit_set_info2(nr), GFP_KERNEL);
+ if (!info2)
+ return -ENOMEM;
+
for (i = 0; i < nr; i++) {
struct nd_mapping_desc *mapping = &ndr_desc->mapping[i];
struct nfit_set_info_map *map = &info->mapping[i];
+ struct nfit_set_info_map2 *map2 = &info2->mapping[i];
struct nvdimm *nvdimm = mapping->nvdimm;
struct nfit_mem *nfit_mem = nvdimm_provider_data(nvdimm);
struct acpi_nfit_memory_map *memdev = memdev_from_spa(acpi_desc,
spa->range_index, i);
+ struct acpi_nfit_control_region *dcr = nfit_mem->dcr;
if (!memdev || !nfit_mem->dcr) {
dev_err(dev, "%s: failed to find DCR\n", __func__);
@@ -1739,20 +1827,55 @@ static int acpi_nfit_init_interleave_set(struct acpi_nfit_desc *acpi_desc,
}
map->region_offset = memdev->region_offset;
- map->serial_number = nfit_mem->dcr->serial_number;
+ map->serial_number = dcr->serial_number;
+
+ map2->region_offset = memdev->region_offset;
+ map2->serial_number = dcr->serial_number;
+ map2->vendor_id = dcr->vendor_id;
+ map2->manufacturing_date = dcr->manufacturing_date;
+ map2->manufacturing_location = dcr->manufacturing_location;
}
+ /* v1.1 namespaces */
sort(&info->mapping[0], nr, sizeof(struct nfit_set_info_map),
cmp_map, NULL);
- nd_set->cookie = nd_fletcher64(info, sizeof_nfit_set_info(nr), 0);
+ nd_set->cookie1 = nd_fletcher64(info, sizeof_nfit_set_info(nr), 0);
- /* support namespaces created with the wrong sort order */
+ /* v1.2 namespaces */
+ sort(&info2->mapping[0], nr, sizeof(struct nfit_set_info_map2),
+ cmp_map2, NULL);
+ nd_set->cookie2 = nd_fletcher64(info2, sizeof_nfit_set_info2(nr), 0);
+
+ /* support v1.1 namespaces created with the wrong sort order */
sort(&info->mapping[0], nr, sizeof(struct nfit_set_info_map),
cmp_map_compat, NULL);
nd_set->altcookie = nd_fletcher64(info, sizeof_nfit_set_info(nr), 0);
+ /* record the result of the sort for the mapping position */
+ for (i = 0; i < nr; i++) {
+ struct nfit_set_info_map2 *map2 = &info2->mapping[i];
+ int j;
+
+ for (j = 0; j < nr; j++) {
+ struct nd_mapping_desc *mapping = &ndr_desc->mapping[j];
+ struct nvdimm *nvdimm = mapping->nvdimm;
+ struct nfit_mem *nfit_mem = nvdimm_provider_data(nvdimm);
+ struct acpi_nfit_control_region *dcr = nfit_mem->dcr;
+
+ if (map2->serial_number == dcr->serial_number &&
+ map2->vendor_id == dcr->vendor_id &&
+ map2->manufacturing_date == dcr->manufacturing_date &&
+ map2->manufacturing_location
+ == dcr->manufacturing_location) {
+ mapping->position = i;
+ break;
+ }
+ }
+ }
+
ndr_desc->nd_set = nd_set;
devm_kfree(dev, info);
+ devm_kfree(dev, info2);
return 0;
}
@@ -1842,11 +1965,10 @@ static int acpi_nfit_blk_single_io(struct nfit_blk *nfit_blk,
}
if (rw)
- memcpy_to_pmem(mmio->addr.aperture + offset,
- iobuf + copied, c);
+ memcpy_flushcache(mmio->addr.aperture + offset, iobuf + copied, c);
else {
if (nfit_blk->dimm_flags & NFIT_BLK_READ_FLUSH)
- mmio_flush_range((void __force *)
+ arch_invalidate_pmem((void __force *)
mmio->addr.aperture + offset, c);
memcpy(iobuf + copied, mmio->addr.aperture + offset, c);
@@ -1957,7 +2079,7 @@ static int acpi_nfit_blk_region_enable(struct nvdimm_bus *nvdimm_bus,
nfit_blk->bdw_offset = nfit_mem->bdw->offset;
mmio = &nfit_blk->mmio[BDW];
mmio->addr.base = devm_nvdimm_memremap(dev, nfit_mem->spa_bdw->address,
- nfit_mem->spa_bdw->length, ARCH_MEMREMAP_PMEM);
+ nfit_mem->spa_bdw->length, nd_blk_memremap_flags(ndbr));
if (!mmio->addr.base) {
dev_dbg(dev, "%s: %s failed to map bdw\n", __func__,
nvdimm_name(nvdimm));
@@ -2051,6 +2173,7 @@ static int ars_start(struct acpi_nfit_desc *acpi_desc, struct nfit_spa *nfit_spa
memset(&ars_start, 0, sizeof(ars_start));
ars_start.address = spa->address;
ars_start.length = spa->length;
+ ars_start.flags = acpi_desc->ars_start_flags;
if (nfit_spa_type(spa) == NFIT_SPA_PM)
ars_start.type = ND_ARS_PERSISTENT;
else if (nfit_spa_type(spa) == NFIT_SPA_VOLATILE)
@@ -2077,6 +2200,7 @@ static int ars_continue(struct acpi_nfit_desc *acpi_desc)
ars_start.address = ars_status->restart_address;
ars_start.length = ars_status->restart_length;
ars_start.type = ars_status->type;
+ ars_start.flags = acpi_desc->ars_start_flags;
rc = nd_desc->ndctl(nd_desc, NULL, ND_CMD_ARS_START, &ars_start,
sizeof(ars_start), &cmd_rc);
if (rc < 0)
@@ -2179,7 +2303,7 @@ static int acpi_nfit_init_mapping(struct acpi_nfit_desc *acpi_desc,
struct acpi_nfit_system_address *spa = nfit_spa->spa;
struct nd_blk_region_desc *ndbr_desc;
struct nfit_mem *nfit_mem;
- int blk_valid = 0;
+ int blk_valid = 0, rc;
if (!nvdimm) {
dev_err(acpi_desc->dev, "spa%d dimm: %#x not found\n",
@@ -2211,6 +2335,9 @@ static int acpi_nfit_init_mapping(struct acpi_nfit_desc *acpi_desc,
ndbr_desc = to_blk_region_desc(ndr_desc);
ndbr_desc->enable = acpi_nfit_blk_region_enable;
ndbr_desc->do_io = acpi_desc->blk_do_io;
+ rc = acpi_nfit_init_interleave_set(acpi_desc, ndr_desc, spa);
+ if (rc)
+ return rc;
nfit_spa->nd_region = nvdimm_blk_region_create(acpi_desc->nvdimm_bus,
ndr_desc);
if (!nfit_spa->nd_region)
@@ -2229,6 +2356,13 @@ static bool nfit_spa_is_virtual(struct acpi_nfit_system_address *spa)
nfit_spa_type(spa) == NFIT_SPA_PCD);
}
+static bool nfit_spa_is_volatile(struct acpi_nfit_system_address *spa)
+{
+ return (nfit_spa_type(spa) == NFIT_SPA_VDISK ||
+ nfit_spa_type(spa) == NFIT_SPA_VCD ||
+ nfit_spa_type(spa) == NFIT_SPA_VOLATILE);
+}
+
static int acpi_nfit_register_region(struct acpi_nfit_desc *acpi_desc,
struct nfit_spa *nfit_spa)
{
@@ -2303,7 +2437,7 @@ static int acpi_nfit_register_region(struct acpi_nfit_desc *acpi_desc,
ndr_desc);
if (!nfit_spa->nd_region)
rc = -ENOMEM;
- } else if (nfit_spa_type(spa) == NFIT_SPA_VOLATILE) {
+ } else if (nfit_spa_is_volatile(spa)) {
nfit_spa->nd_region = nvdimm_volatile_region_create(nvdimm_bus,
ndr_desc);
if (!nfit_spa->nd_region)
@@ -2595,6 +2729,7 @@ static void acpi_nfit_scrub(struct work_struct *work)
list_for_each_entry(nfit_spa, &acpi_desc->spas, list)
acpi_nfit_async_scrub(acpi_desc, nfit_spa);
acpi_desc->scrub_count++;
+ acpi_desc->ars_start_flags = 0;
if (acpi_desc->scrub_count_state)
sysfs_notify_dirent(acpi_desc->scrub_count_state);
mutex_unlock(&acpi_desc->init_mutex);
@@ -2613,6 +2748,7 @@ static int acpi_nfit_register_regions(struct acpi_nfit_desc *acpi_desc)
return rc;
}
+ acpi_desc->ars_start_flags = 0;
if (!acpi_desc->cancel)
queue_work(nfit_wq, &acpi_desc->work);
return 0;
@@ -2786,7 +2922,7 @@ static int acpi_nfit_flush_probe(struct nvdimm_bus_descriptor *nd_desc)
* need to be interruptible while waiting.
*/
INIT_WORK_ONSTACK(&flush.work, flush_probe);
- COMPLETION_INITIALIZER_ONSTACK(flush.cmp);
+ init_completion(&flush.cmp);
queue_work(nfit_wq, &flush.work);
mutex_unlock(&acpi_desc->init_mutex);
@@ -2817,7 +2953,7 @@ static int acpi_nfit_clear_to_send(struct nvdimm_bus_descriptor *nd_desc,
return 0;
}
-int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc)
+int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc, u8 flags)
{
struct device *dev = acpi_desc->dev;
struct nfit_spa *nfit_spa;
@@ -2839,6 +2975,7 @@ int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc)
nfit_spa->ars_required = 1;
}
+ acpi_desc->ars_start_flags = flags;
queue_work(nfit_wq, &acpi_desc->work);
dev_dbg(dev, "%s: ars_scan triggered\n", __func__);
mutex_unlock(&acpi_desc->init_mutex);
@@ -2967,7 +3104,7 @@ static int acpi_nfit_remove(struct acpi_device *adev)
return 0;
}
-void __acpi_nfit_notify(struct device *dev, acpi_handle handle, u32 event)
+static void acpi_nfit_update_notify(struct device *dev, acpi_handle handle)
{
struct acpi_nfit_desc *acpi_desc = dev_get_drvdata(dev);
struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -2975,11 +3112,6 @@ void __acpi_nfit_notify(struct device *dev, acpi_handle handle, u32 event)
acpi_status status;
int ret;
- dev_dbg(dev, "%s: event: %d\n", __func__, event);
-
- if (event != NFIT_NOTIFY_UPDATE)
- return;
-
if (!dev->driver) {
/* dev->driver may be null if we're being removed */
dev_dbg(dev, "%s: no driver found for dev\n", __func__);
@@ -3016,6 +3148,29 @@ void __acpi_nfit_notify(struct device *dev, acpi_handle handle, u32 event)
dev_err(dev, "Invalid _FIT\n");
kfree(buf.pointer);
}
+
+static void acpi_nfit_uc_error_notify(struct device *dev, acpi_handle handle)
+{
+ struct acpi_nfit_desc *acpi_desc = dev_get_drvdata(dev);
+ u8 flags = (acpi_desc->scrub_mode == HW_ERROR_SCRUB_ON) ?
+ 0 : ND_ARS_RETURN_PREV_DATA;
+
+ acpi_nfit_ars_rescan(acpi_desc, flags);
+}
+
+void __acpi_nfit_notify(struct device *dev, acpi_handle handle, u32 event)
+{
+ dev_dbg(dev, "%s: event: 0x%x\n", __func__, event);
+
+ switch (event) {
+ case NFIT_NOTIFY_UPDATE:
+ return acpi_nfit_update_notify(dev, handle);
+ case NFIT_NOTIFY_UC_MEMORY_ERROR:
+ return acpi_nfit_uc_error_notify(dev, handle);
+ default:
+ return;
+ }
+}
EXPORT_SYMBOL_GPL(__acpi_nfit_notify);
static void acpi_nfit_notify(struct acpi_device *adev, u32 event)
@@ -3043,6 +3198,8 @@ static struct acpi_driver acpi_nfit_driver = {
static __init int nfit_init(void)
{
+ int ret;
+
BUILD_BUG_ON(sizeof(struct acpi_table_nfit) != 40);
BUILD_BUG_ON(sizeof(struct acpi_nfit_system_address) != 56);
BUILD_BUG_ON(sizeof(struct acpi_nfit_memory_map) != 48);
@@ -3051,27 +3208,33 @@ static __init int nfit_init(void)
BUILD_BUG_ON(sizeof(struct acpi_nfit_control_region) != 80);
BUILD_BUG_ON(sizeof(struct acpi_nfit_data_region) != 40);
- acpi_str_to_uuid(UUID_VOLATILE_MEMORY, nfit_uuid[NFIT_SPA_VOLATILE]);
- acpi_str_to_uuid(UUID_PERSISTENT_MEMORY, nfit_uuid[NFIT_SPA_PM]);
- acpi_str_to_uuid(UUID_CONTROL_REGION, nfit_uuid[NFIT_SPA_DCR]);
- acpi_str_to_uuid(UUID_DATA_REGION, nfit_uuid[NFIT_SPA_BDW]);
- acpi_str_to_uuid(UUID_VOLATILE_VIRTUAL_DISK, nfit_uuid[NFIT_SPA_VDISK]);
- acpi_str_to_uuid(UUID_VOLATILE_VIRTUAL_CD, nfit_uuid[NFIT_SPA_VCD]);
- acpi_str_to_uuid(UUID_PERSISTENT_VIRTUAL_DISK, nfit_uuid[NFIT_SPA_PDISK]);
- acpi_str_to_uuid(UUID_PERSISTENT_VIRTUAL_CD, nfit_uuid[NFIT_SPA_PCD]);
- acpi_str_to_uuid(UUID_NFIT_BUS, nfit_uuid[NFIT_DEV_BUS]);
- acpi_str_to_uuid(UUID_NFIT_DIMM, nfit_uuid[NFIT_DEV_DIMM]);
- acpi_str_to_uuid(UUID_NFIT_DIMM_N_HPE1, nfit_uuid[NFIT_DEV_DIMM_N_HPE1]);
- acpi_str_to_uuid(UUID_NFIT_DIMM_N_HPE2, nfit_uuid[NFIT_DEV_DIMM_N_HPE2]);
- acpi_str_to_uuid(UUID_NFIT_DIMM_N_MSFT, nfit_uuid[NFIT_DEV_DIMM_N_MSFT]);
+ guid_parse(UUID_VOLATILE_MEMORY, &nfit_uuid[NFIT_SPA_VOLATILE]);
+ guid_parse(UUID_PERSISTENT_MEMORY, &nfit_uuid[NFIT_SPA_PM]);
+ guid_parse(UUID_CONTROL_REGION, &nfit_uuid[NFIT_SPA_DCR]);
+ guid_parse(UUID_DATA_REGION, &nfit_uuid[NFIT_SPA_BDW]);
+ guid_parse(UUID_VOLATILE_VIRTUAL_DISK, &nfit_uuid[NFIT_SPA_VDISK]);
+ guid_parse(UUID_VOLATILE_VIRTUAL_CD, &nfit_uuid[NFIT_SPA_VCD]);
+ guid_parse(UUID_PERSISTENT_VIRTUAL_DISK, &nfit_uuid[NFIT_SPA_PDISK]);
+ guid_parse(UUID_PERSISTENT_VIRTUAL_CD, &nfit_uuid[NFIT_SPA_PCD]);
+ guid_parse(UUID_NFIT_BUS, &nfit_uuid[NFIT_DEV_BUS]);
+ guid_parse(UUID_NFIT_DIMM, &nfit_uuid[NFIT_DEV_DIMM]);
+ guid_parse(UUID_NFIT_DIMM_N_HPE1, &nfit_uuid[NFIT_DEV_DIMM_N_HPE1]);
+ guid_parse(UUID_NFIT_DIMM_N_HPE2, &nfit_uuid[NFIT_DEV_DIMM_N_HPE2]);
+ guid_parse(UUID_NFIT_DIMM_N_MSFT, &nfit_uuid[NFIT_DEV_DIMM_N_MSFT]);
nfit_wq = create_singlethread_workqueue("nfit");
if (!nfit_wq)
return -ENOMEM;
nfit_mce_register();
+ ret = acpi_bus_register_driver(&acpi_nfit_driver);
+ if (ret) {
+ nfit_mce_unregister();
+ destroy_workqueue(nfit_wq);
+ }
+
+ return ret;
- return acpi_bus_register_driver(&acpi_nfit_driver);
}
static __exit void nfit_exit(void)
diff --git a/drivers/acpi/nfit/mce.c b/drivers/acpi/nfit/mce.c
index fd86bec98dea..feeb95d574fa 100644
--- a/drivers/acpi/nfit/mce.c
+++ b/drivers/acpi/nfit/mce.c
@@ -79,7 +79,7 @@ static int nfit_handle_mce(struct notifier_block *nb, unsigned long val,
* already in progress, just let that be the last
* authoritative one
*/
- acpi_nfit_ars_rescan(acpi_desc);
+ acpi_nfit_ars_rescan(acpi_desc, 0);
}
break;
}
diff --git a/drivers/acpi/nfit/nfit.h b/drivers/acpi/nfit/nfit.h
index 58fb7d68e04a..54292db61262 100644
--- a/drivers/acpi/nfit/nfit.h
+++ b/drivers/acpi/nfit/nfit.h
@@ -18,7 +18,6 @@
#include <linux/libnvdimm.h>
#include <linux/ndctl.h>
#include <linux/types.h>
-#include <linux/uuid.h>
#include <linux/acpi.h>
#include <acpi/acuuid.h>
@@ -80,6 +79,7 @@ enum {
enum nfit_root_notifiers {
NFIT_NOTIFY_UPDATE = 0x80,
+ NFIT_NOTIFY_UC_MEMORY_ERROR = 0x81,
};
enum nfit_dimm_notifiers {
@@ -155,6 +155,7 @@ struct acpi_nfit_desc {
struct list_head idts;
struct nvdimm_bus *nvdimm_bus;
struct device *dev;
+ u8 ars_start_flags;
struct nd_cmd_ars_status *ars_status;
size_t ars_status_size;
struct work_struct work;
@@ -207,7 +208,7 @@ struct nfit_blk {
extern struct list_head acpi_descs;
extern struct mutex acpi_desc_lock;
-int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc);
+int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc, u8 flags);
#ifdef CONFIG_X86_MCE
void nfit_mce_register(void);
@@ -237,7 +238,7 @@ static inline struct acpi_nfit_desc *to_acpi_desc(
return container_of(nd_desc, struct acpi_nfit_desc, nd_desc);
}
-const u8 *to_nfit_uuid(enum nfit_uuids id);
+const guid_t *to_nfit_uuid(enum nfit_uuids id);
int acpi_nfit_init(struct acpi_nfit_desc *acpi_desc, void *nfit, acpi_size sz);
void acpi_nfit_shutdown(void *data);
void __acpi_nfit_notify(struct device *dev, acpi_handle handle, u32 event);
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index edb0c79f7c64..917f1cc0fda4 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -443,7 +443,7 @@ int __init acpi_numa_init(void)
* So go over all cpu entries in SRAT to get apicid to node mapping.
*/
- /* SRAT: Static Resource Affinity Table */
+ /* SRAT: System Resource Affinity Table */
if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
struct acpi_subtable_proc srat_proc[3];
diff --git a/drivers/acpi/osi.c b/drivers/acpi/osi.c
index 849f9d2245ca..76998a51bf99 100644
--- a/drivers/acpi/osi.c
+++ b/drivers/acpi/osi.c
@@ -27,6 +27,7 @@
#include <linux/kernel.h>
#include <linux/acpi.h>
#include <linux/dmi.h>
+#include <linux/platform_data/x86/apple.h>
#include "internal.h"
@@ -257,28 +258,21 @@ bool acpi_osi_is_win8(void)
}
EXPORT_SYMBOL(acpi_osi_is_win8);
-static void __init acpi_osi_dmi_darwin(bool enable,
- const struct dmi_system_id *d)
+static void __init acpi_osi_dmi_darwin(void)
{
- pr_notice("DMI detected to setup _OSI(\"Darwin\"): %s\n", d->ident);
+ pr_notice("DMI detected to setup _OSI(\"Darwin\"): Apple hardware\n");
osi_config.darwin_dmi = 1;
- __acpi_osi_setup_darwin(enable);
+ __acpi_osi_setup_darwin(true);
}
-void __init acpi_osi_dmi_linux(bool enable, const struct dmi_system_id *d)
+static void __init acpi_osi_dmi_linux(bool enable,
+ const struct dmi_system_id *d)
{
pr_notice("DMI detected to setup _OSI(\"Linux\"): %s\n", d->ident);
osi_config.linux_dmi = 1;
__acpi_osi_setup_linux(enable);
}
-static int __init dmi_enable_osi_darwin(const struct dmi_system_id *d)
-{
- acpi_osi_dmi_darwin(true, d);
-
- return 0;
-}
-
static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
{
acpi_osi_dmi_linux(true, d);
@@ -318,7 +312,7 @@ static int __init dmi_disable_osi_win8(const struct dmi_system_id *d)
* Note that _OSI("Linux")/_OSI("Darwin") determined here can be overridden
* by acpi_osi=!Linux/acpi_osi=!Darwin command line options.
*/
-static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
+static const struct dmi_system_id acpi_osi_dmi_table[] __initconst = {
{
.callback = dmi_disable_osi_vista,
.ident = "Fujitsu Siemens",
@@ -480,30 +474,16 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
DMI_MATCH(DMI_PRODUCT_NAME, "1015PX"),
},
},
-
- /*
- * Enable _OSI("Darwin") for all apple platforms.
- */
- {
- .callback = dmi_enable_osi_darwin,
- .ident = "Apple hardware",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
- },
- },
- {
- .callback = dmi_enable_osi_darwin,
- .ident = "Apple hardware",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
- },
- },
{}
};
static __init void acpi_osi_dmi_blacklisted(void)
{
dmi_check_system(acpi_osi_dmi_table);
+
+ /* Enable _OSI("Darwin") for Apple platforms. */
+ if (x86_apple_machine)
+ acpi_osi_dmi_darwin();
}
int __init early_acpi_osi_init(void)
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 919be0aa2578..6fc204a52493 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -33,6 +33,7 @@
#include <linux/acpi.h>
#include <linux/slab.h>
#include <linux/dmi.h>
+#include <linux/platform_data/x86/apple.h>
#include <acpi/apei.h> /* for acpi_hest_init() */
#include "internal.h"
@@ -431,8 +432,7 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm)
* been called successfully. We know the feature set supported by the
* platform, so avoid calling _OSC at all
*/
-
- if (dmi_match(DMI_SYS_VENDOR, "Apple Inc.")) {
+ if (x86_apple_machine) {
root->osc_control_set = ~OSC_PCI_EXPRESS_PME_CONTROL;
decode_osc_control(root, "OS assumes control of",
root->osc_control_set);
@@ -523,7 +523,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
struct acpi_pci_root *root;
acpi_handle handle = device->handle;
int no_aspm = 0;
- bool hotadd = system_state != SYSTEM_BOOTING;
+ bool hotadd = system_state == SYSTEM_RUNNING;
root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
if (!root)
@@ -608,8 +608,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
pcie_no_aspm();
pci_acpi_add_bus_pm_notifier(device);
- if (device->wakeup.flags.run_wake)
- device_set_run_wake(root->bus->bridge, true);
+ device_set_wakeup_capable(root->bus->bridge, device->wakeup.flags.valid);
if (hotadd) {
pcibios_resource_survey_bus(root->bus);
@@ -649,7 +648,7 @@ static void acpi_pci_root_remove(struct acpi_device *device)
pci_stop_root_bus(root->bus);
pci_ioapic_remove(root);
- device_set_run_wake(root->bus->bridge, false);
+ device_set_wakeup_capable(root->bus->bridge, false);
pci_acpi_remove_bus_pm_notifier(device);
pci_remove_root_bus(root->bus);
diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c
index f62c68e24317..e90b61f7d2db 100644
--- a/drivers/acpi/pci_slot.c
+++ b/drivers/acpi/pci_slot.c
@@ -174,7 +174,7 @@ static int do_sta_before_sun(const struct dmi_system_id *d)
return 0;
}
-static struct dmi_system_id acpi_pci_slot_dmi_table[] __initdata = {
+static const struct dmi_system_id acpi_pci_slot_dmi_table[] __initconst = {
/*
* Fujitsu Primequest machines will return 1023 to indicate an
* error if the _SUN method is evaluated on SxFy objects that
diff --git a/drivers/acpi/pmic/intel_pmic_xpower.c b/drivers/acpi/pmic/intel_pmic_xpower.c
index 1a76c784cd4c..6c99d3f81095 100644
--- a/drivers/acpi/pmic/intel_pmic_xpower.c
+++ b/drivers/acpi/pmic/intel_pmic_xpower.c
@@ -21,6 +21,14 @@
#include "intel_pmic.h"
#define XPOWER_GPADC_LOW 0x5b
+#define XPOWER_GPI1_CTRL 0x92
+
+#define GPI1_LDO_MASK GENMASK(2, 0)
+#define GPI1_LDO_ON (3 << 0)
+#define GPI1_LDO_OFF (4 << 0)
+
+#define AXP288_ADC_TS_PIN_GPADC 0xf2
+#define AXP288_ADC_TS_PIN_ON 0xf3
static struct pmic_table power_table[] = {
{
@@ -118,6 +126,10 @@ static struct pmic_table power_table[] = {
.reg = 0x10,
.bit = 0x00
}, /* BUC6 */
+ {
+ .address = 0x4c,
+ .reg = 0x92,
+ }, /* GPI1 */
};
/* TMP0 - TMP5 are the same, all from GPADC */
@@ -156,7 +168,12 @@ static int intel_xpower_pmic_get_power(struct regmap *regmap, int reg,
if (regmap_read(regmap, reg, &data))
return -EIO;
- *value = (data & BIT(bit)) ? 1 : 0;
+ /* GPIO1 LDO regulator needs special handling */
+ if (reg == XPOWER_GPI1_CTRL)
+ *value = ((data & GPI1_LDO_MASK) == GPI1_LDO_ON);
+ else
+ *value = (data & BIT(bit)) ? 1 : 0;
+
return 0;
}
@@ -165,6 +182,11 @@ static int intel_xpower_pmic_update_power(struct regmap *regmap, int reg,
{
int data;
+ /* GPIO1 LDO regulator needs special handling */
+ if (reg == XPOWER_GPI1_CTRL)
+ return regmap_update_bits(regmap, reg, GPI1_LDO_MASK,
+ on ? GPI1_LDO_ON : GPI1_LDO_OFF);
+
if (regmap_read(regmap, reg, &data))
return -EIO;
@@ -190,11 +212,23 @@ static int intel_xpower_pmic_update_power(struct regmap *regmap, int reg,
static int intel_xpower_pmic_get_raw_temp(struct regmap *regmap, int reg)
{
u8 buf[2];
+ int ret;
- if (regmap_bulk_read(regmap, AXP288_GP_ADC_H, buf, 2))
- return -EIO;
+ ret = regmap_write(regmap, AXP288_ADC_TS_PIN_CTRL,
+ AXP288_ADC_TS_PIN_GPADC);
+ if (ret)
+ return ret;
+
+ /* After switching to the GPADC pin give things some time to settle */
+ usleep_range(6000, 10000);
+
+ ret = regmap_bulk_read(regmap, AXP288_GP_ADC_H, buf, 2);
+ if (ret == 0)
+ ret = (buf[0] << 4) + ((buf[1] >> 4) & 0x0f);
+
+ regmap_write(regmap, AXP288_ADC_TS_PIN_CTRL, AXP288_ADC_TS_PIN_ON);
- return (buf[0] << 4) + ((buf[1] >> 4) & 0x0F);
+ return ret;
}
static struct intel_pmic_opregion_data intel_xpower_pmic_opregion_data = {
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 3a6c9b741b23..1b475bc1ae16 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -352,7 +352,7 @@ static struct attribute *attrs[] = {
NULL,
};
-static struct attribute_group attr_groups[] = {
+static const struct attribute_group attr_groups[] = {
[ACPI_STATE_D0] = {
.name = "power_resources_D0",
.attrs = attrs,
@@ -371,14 +371,14 @@ static struct attribute_group attr_groups[] = {
},
};
-static struct attribute_group wakeup_attr_group = {
+static const struct attribute_group wakeup_attr_group = {
.name = "power_resources_wakeup",
.attrs = attrs,
};
static void acpi_power_hide_list(struct acpi_device *adev,
struct list_head *resources,
- struct attribute_group *attr_group)
+ const struct attribute_group *attr_group)
{
struct acpi_power_resource_entry *entry;
@@ -397,7 +397,7 @@ static void acpi_power_hide_list(struct acpi_device *adev,
static void acpi_power_expose_list(struct acpi_device *adev,
struct list_head *resources,
- struct attribute_group *attr_group)
+ const struct attribute_group *attr_group)
{
struct acpi_power_resource_entry *entry;
int ret;
@@ -425,7 +425,7 @@ static void acpi_power_expose_list(struct acpi_device *adev,
static void acpi_power_expose_hide(struct acpi_device *adev,
struct list_head *resources,
- struct attribute_group *attr_group,
+ const struct attribute_group *attr_group,
bool expose)
{
if (expose)
diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c
index a34669cc823b..85ac848ac6ab 100644
--- a/drivers/acpi/proc.c
+++ b/drivers/acpi/proc.c
@@ -42,7 +42,7 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
if (!dev->physical_node_count) {
seq_printf(seq, "%c%-8s\n",
- dev->wakeup.flags.run_wake ? '*' : ' ',
+ dev->wakeup.flags.valid ? '*' : ' ',
device_may_wakeup(&dev->dev) ?
"enabled" : "disabled");
} else {
@@ -58,7 +58,7 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
seq_printf(seq, "\t\t");
seq_printf(seq, "%c%-8s %s:%s\n",
- dev->wakeup.flags.run_wake ? '*' : ' ',
+ dev->wakeup.flags.valid ? '*' : ' ',
(device_may_wakeup(&dev->dev) ||
device_may_wakeup(ldev)) ?
"enabled" : "disabled",
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index 8697a82bd465..9d6aff22684e 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -237,7 +237,7 @@ static int __acpi_processor_start(struct acpi_device *device)
result = acpi_cppc_processor_probe(pr);
if (result && !IS_ENABLED(CONFIG_ACPI_CPU_FREQ_PSS))
- dev_warn(&device->dev, "CPPC data invalid or not present\n");
+ dev_dbg(&device->dev, "CPPC data invalid or not present\n");
if (!cpuidle_get_driver() || cpuidle_get_driver() == &acpi_idle_driver)
acpi_processor_power_init(pr);
@@ -268,9 +268,9 @@ static int acpi_processor_start(struct device *dev)
return -ENODEV;
/* Protect against concurrent CPU hotplug operations */
- get_online_cpus();
+ cpu_hotplug_disable();
ret = __acpi_processor_start(device);
- put_online_cpus();
+ cpu_hotplug_enable();
return ret;
}
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 5c8aa9cf62d7..2736e25e9dc6 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -48,6 +48,8 @@
#define _COMPONENT ACPI_PROCESSOR_COMPONENT
ACPI_MODULE_NAME("processor_idle");
+#define ACPI_IDLE_STATE_START (IS_ENABLED(CONFIG_ARCH_HAS_CPU_RELAX) ? 1 : 0)
+
static unsigned int max_cstate __read_mostly = ACPI_PROCESSOR_MAX_POWER;
module_param(max_cstate, uint, 0000);
static unsigned int nocst __read_mostly;
@@ -708,8 +710,6 @@ static DEFINE_RAW_SPINLOCK(c3_lock);
static void acpi_idle_enter_bm(struct acpi_processor *pr,
struct acpi_processor_cx *cx, bool timer_bc)
{
- acpi_unlazy_tlb(smp_processor_id());
-
/*
* Must be done before busmaster disable as we might need to
* access HPET !
@@ -761,7 +761,7 @@ static int acpi_idle_enter(struct cpuidle_device *dev,
if (cx->type != ACPI_STATE_C1) {
if (acpi_idle_fallback_to_c1(pr) && num_online_cpus() > 1) {
- index = CPUIDLE_DRIVER_STATE_START;
+ index = ACPI_IDLE_STATE_START;
cx = per_cpu(acpi_cstate[index], dev->cpu);
} else if (cx->type == ACPI_STATE_C3 && pr->flags.bm_check) {
if (cx->bm_sts_skip || !acpi_idle_bm_check()) {
@@ -789,7 +789,7 @@ static int acpi_idle_enter(struct cpuidle_device *dev,
return index;
}
-static void acpi_idle_enter_freeze(struct cpuidle_device *dev,
+static void acpi_idle_enter_s2idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index)
{
struct acpi_processor_cx *cx = per_cpu(acpi_cstate[index], dev->cpu);
@@ -813,7 +813,7 @@ static void acpi_idle_enter_freeze(struct cpuidle_device *dev,
static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr,
struct cpuidle_device *dev)
{
- int i, count = CPUIDLE_DRIVER_STATE_START;
+ int i, count = ACPI_IDLE_STATE_START;
struct acpi_processor_cx *cx;
if (max_cstate == 0)
@@ -840,7 +840,7 @@ static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr,
static int acpi_processor_setup_cstates(struct acpi_processor *pr)
{
- int i, count = CPUIDLE_DRIVER_STATE_START;
+ int i, count;
struct acpi_processor_cx *cx;
struct cpuidle_state *state;
struct cpuidle_driver *drv = &acpi_idle_driver;
@@ -848,6 +848,13 @@ static int acpi_processor_setup_cstates(struct acpi_processor *pr)
if (max_cstate == 0)
max_cstate = 1;
+ if (IS_ENABLED(CONFIG_ARCH_HAS_CPU_RELAX)) {
+ cpuidle_poll_state_init(drv);
+ count = 1;
+ } else {
+ count = 0;
+ }
+
for (i = 1; i < ACPI_PROCESSOR_MAX_POWER && i <= max_cstate; i++) {
cx = &pr->power.states[i];
@@ -867,14 +874,14 @@ static int acpi_processor_setup_cstates(struct acpi_processor *pr)
drv->safe_state_index = count;
}
/*
- * Halt-induced C1 is not good for ->enter_freeze, because it
+ * Halt-induced C1 is not good for ->enter_s2idle, because it
* re-enables interrupts on exit. Moreover, C1 is generally not
* particularly interesting from the suspend-to-idle angle, so
* avoid C1 and the situations in which we may need to fall back
* to it altogether.
*/
if (cx->type != ACPI_STATE_C1 && !acpi_idle_fallback_to_c1(pr))
- state->enter_freeze = acpi_idle_enter_freeze;
+ state->enter_s2idle = acpi_idle_enter_s2idle;
count++;
if (count == CPUIDLE_STATE_MAX)
@@ -1291,7 +1298,7 @@ static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr)
return -EINVAL;
drv->safe_state_index = -1;
- for (i = CPUIDLE_DRIVER_STATE_START; i < CPUIDLE_STATE_MAX; i++) {
+ for (i = ACPI_IDLE_STATE_START; i < CPUIDLE_STATE_MAX; i++) {
drv->states[i].name[0] = '\0';
drv->states[i].desc[0] = '\0';
}
diff --git a/drivers/acpi/processor_pdc.c b/drivers/acpi/processor_pdc.c
index 7cfbda4d7c51..74f738cb6073 100644
--- a/drivers/acpi/processor_pdc.c
+++ b/drivers/acpi/processor_pdc.c
@@ -173,7 +173,7 @@ static int __init set_no_mwait(const struct dmi_system_id *id)
return 0;
}
-static struct dmi_system_id processor_idle_dmi_table[] __initdata = {
+static const struct dmi_system_id processor_idle_dmi_table[] __initconst = {
{
set_no_mwait, "Extensa 5220", {
DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index 3de34633f7f9..7f9aff4b8d62 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -909,6 +909,13 @@ static long __acpi_processor_get_throttling(void *data)
return pr->throttling.acpi_processor_get_throttling(pr);
}
+static int call_on_cpu(int cpu, long (*fn)(void *), void *arg, bool direct)
+{
+ if (direct || (is_percpu_thread() && cpu == smp_processor_id()))
+ return fn(arg);
+ return work_on_cpu(cpu, fn, arg);
+}
+
static int acpi_processor_get_throttling(struct acpi_processor *pr)
{
if (!pr)
@@ -926,7 +933,7 @@ static int acpi_processor_get_throttling(struct acpi_processor *pr)
if (!cpu_online(pr->id))
return -ENODEV;
- return work_on_cpu(pr->id, __acpi_processor_get_throttling, pr);
+ return call_on_cpu(pr->id, __acpi_processor_get_throttling, pr, false);
}
static int acpi_processor_get_fadt_info(struct acpi_processor *pr)
@@ -1076,13 +1083,6 @@ static long acpi_processor_throttling_fn(void *data)
arg->target_state, arg->force);
}
-static int call_on_cpu(int cpu, long (*fn)(void *), void *arg, bool direct)
-{
- if (direct)
- return fn(arg);
- return work_on_cpu(cpu, fn, arg);
-}
-
static int __acpi_processor_set_throttling(struct acpi_processor *pr,
int state, bool force, bool direct)
{
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index 9364398204e9..e26ea209b63e 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -19,21 +19,19 @@
#include "internal.h"
-static int acpi_data_get_property_array(struct acpi_device_data *data,
+static int acpi_data_get_property_array(const struct acpi_device_data *data,
const char *name,
acpi_object_type type,
const union acpi_object **obj);
-/* ACPI _DSD device properties UUID: daffd814-6eba-4d8c-8a91-bc9bbf4aa301 */
-static const u8 prp_uuid[16] = {
- 0x14, 0xd8, 0xff, 0xda, 0xba, 0x6e, 0x8c, 0x4d,
- 0x8a, 0x91, 0xbc, 0x9b, 0xbf, 0x4a, 0xa3, 0x01
-};
-/* ACPI _DSD data subnodes UUID: dbb8e3e6-5886-4ba6-8795-1319f52a966b */
-static const u8 ads_uuid[16] = {
- 0xe6, 0xe3, 0xb8, 0xdb, 0x86, 0x58, 0xa6, 0x4b,
- 0x87, 0x95, 0x13, 0x19, 0xf5, 0x2a, 0x96, 0x6b
-};
+/* ACPI _DSD device properties GUID: daffd814-6eba-4d8c-8a91-bc9bbf4aa301 */
+static const guid_t prp_guid =
+ GUID_INIT(0xdaffd814, 0x6eba, 0x4d8c,
+ 0x8a, 0x91, 0xbc, 0x9b, 0xbf, 0x4a, 0xa3, 0x01);
+/* ACPI _DSD data subnodes GUID: dbb8e3e6-5886-4ba6-8795-1319f52a966b */
+static const guid_t ads_guid =
+ GUID_INIT(0xdbb8e3e6, 0x5886, 0x4ba6,
+ 0x87, 0x95, 0x13, 0x19, 0xf5, 0x2a, 0x96, 0x6b);
static bool acpi_enumerate_nondev_subnodes(acpi_handle scope,
const union acpi_object *desc,
@@ -56,7 +54,7 @@ static bool acpi_nondev_subnode_extract(const union acpi_object *desc,
return false;
dn->name = link->package.elements[0].string.pointer;
- dn->fwnode.type = FWNODE_ACPI_DATA;
+ dn->fwnode.ops = &acpi_data_fwnode_ops;
dn->parent = parent;
INIT_LIST_HEAD(&dn->data.subnodes);
@@ -189,22 +187,23 @@ static bool acpi_enumerate_nondev_subnodes(acpi_handle scope,
{
int i;
- /* Look for the ACPI data subnodes UUID. */
+ /* Look for the ACPI data subnodes GUID. */
for (i = 0; i < desc->package.count; i += 2) {
- const union acpi_object *uuid, *links;
+ const union acpi_object *guid, *links;
- uuid = &desc->package.elements[i];
+ guid = &desc->package.elements[i];
links = &desc->package.elements[i + 1];
/*
- * The first element must be a UUID and the second one must be
+ * The first element must be a GUID and the second one must be
* a package.
*/
- if (uuid->type != ACPI_TYPE_BUFFER || uuid->buffer.length != 16
- || links->type != ACPI_TYPE_PACKAGE)
+ if (guid->type != ACPI_TYPE_BUFFER ||
+ guid->buffer.length != 16 ||
+ links->type != ACPI_TYPE_PACKAGE)
break;
- if (memcmp(uuid->buffer.pointer, ads_uuid, sizeof(ads_uuid)))
+ if (!guid_equal((guid_t *)guid->buffer.pointer, &ads_guid))
continue;
return acpi_add_nondev_subnodes(scope, links, &data->subnodes,
@@ -297,26 +296,27 @@ static bool acpi_extract_properties(const union acpi_object *desc,
if (desc->package.count % 2)
return false;
- /* Look for the device properties UUID. */
+ /* Look for the device properties GUID. */
for (i = 0; i < desc->package.count; i += 2) {
- const union acpi_object *uuid, *properties;
+ const union acpi_object *guid, *properties;
- uuid = &desc->package.elements[i];
+ guid = &desc->package.elements[i];
properties = &desc->package.elements[i + 1];
/*
- * The first element must be a UUID and the second one must be
+ * The first element must be a GUID and the second one must be
* a package.
*/
- if (uuid->type != ACPI_TYPE_BUFFER || uuid->buffer.length != 16
- || properties->type != ACPI_TYPE_PACKAGE)
+ if (guid->type != ACPI_TYPE_BUFFER ||
+ guid->buffer.length != 16 ||
+ properties->type != ACPI_TYPE_PACKAGE)
break;
- if (memcmp(uuid->buffer.pointer, prp_uuid, sizeof(prp_uuid)))
+ if (!guid_equal((guid_t *)guid->buffer.pointer, &prp_guid))
continue;
/*
- * We found the matching UUID. Now validate the format of the
+ * We found the matching GUID. Now validate the format of the
* package immediately following it.
*/
if (!acpi_properties_format_valid(properties))
@@ -338,6 +338,9 @@ void acpi_init_properties(struct acpi_device *adev)
INIT_LIST_HEAD(&adev->data.subnodes);
+ if (!adev->handle)
+ return;
+
/*
* Check if ACPI_DT_NAMESPACE_HID is present and inthat case we fill in
* Device Tree compatible properties for this device.
@@ -372,6 +375,9 @@ void acpi_init_properties(struct acpi_device *adev)
if (acpi_of && !adev->flags.of_compatible_ok)
acpi_handle_info(adev->handle,
ACPI_DT_NAMESPACE_HID " requires 'compatible' property\n");
+
+ if (!adev->data.pointer)
+ acpi_extract_apple_properties(adev);
}
static void acpi_destroy_nondev_subnodes(struct list_head *list)
@@ -417,7 +423,7 @@ void acpi_free_properties(struct acpi_device *adev)
* %-EINVAL if the property doesn't exist,
* %-EPROTO if the property value type doesn't match @type.
*/
-static int acpi_data_get_property(struct acpi_device_data *data,
+static int acpi_data_get_property(const struct acpi_device_data *data,
const char *name, acpi_object_type type,
const union acpi_object **obj)
{
@@ -459,20 +465,21 @@ static int acpi_data_get_property(struct acpi_device_data *data,
* @type: Expected property type.
* @obj: Location to store the property value (if not %NULL).
*/
-int acpi_dev_get_property(struct acpi_device *adev, const char *name,
+int acpi_dev_get_property(const struct acpi_device *adev, const char *name,
acpi_object_type type, const union acpi_object **obj)
{
return adev ? acpi_data_get_property(&adev->data, name, type, obj) : -EINVAL;
}
EXPORT_SYMBOL_GPL(acpi_dev_get_property);
-static struct acpi_device_data *acpi_device_data_of_node(struct fwnode_handle *fwnode)
+static const struct acpi_device_data *
+acpi_device_data_of_node(const struct fwnode_handle *fwnode)
{
- if (fwnode->type == FWNODE_ACPI) {
- struct acpi_device *adev = to_acpi_device_node(fwnode);
+ if (is_acpi_device_node(fwnode)) {
+ const struct acpi_device *adev = to_acpi_device_node(fwnode);
return &adev->data;
- } else if (fwnode->type == FWNODE_ACPI_DATA) {
- struct acpi_data_node *dn = to_acpi_data_node(fwnode);
+ } else if (is_acpi_data_node(fwnode)) {
+ const struct acpi_data_node *dn = to_acpi_data_node(fwnode);
return &dn->data;
}
return NULL;
@@ -484,8 +491,8 @@ static struct acpi_device_data *acpi_device_data_of_node(struct fwnode_handle *f
* @propname: Name of the property.
* @valptr: Location to store a pointer to the property value (if not %NULL).
*/
-int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
- void **valptr)
+int acpi_node_prop_get(const struct fwnode_handle *fwnode,
+ const char *propname, void **valptr)
{
return acpi_data_get_property(acpi_device_data_of_node(fwnode),
propname, ACPI_TYPE_ANY,
@@ -511,7 +518,7 @@ int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
* %-EPROTO if the property is not a package or the type of its elements
* doesn't match @type.
*/
-static int acpi_data_get_property_array(struct acpi_device_data *data,
+static int acpi_data_get_property_array(const struct acpi_device_data *data,
const char *name,
acpi_object_type type,
const union acpi_object **obj)
@@ -564,30 +571,29 @@ static int acpi_data_get_property_array(struct acpi_device_data *data,
* }
* }
*
- * Calling this function with index %2 return %-ENOENT and with index %3
- * returns the last entry. If the property does not contain any more values
- * %-ENODATA is returned. The NULL entry must be single integer and
- * preferably contain value %0.
+ * Calling this function with index %2 or index %3 return %-ENOENT. If the
+ * property does not contain any more values %-ENOENT is returned. The NULL
+ * entry must be single integer and preferably contain value %0.
*
* Return: %0 on success, negative error code on failure.
*/
-int __acpi_node_get_property_reference(struct fwnode_handle *fwnode,
+int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
const char *propname, size_t index, size_t num_args,
struct acpi_reference_args *args)
{
const union acpi_object *element, *end;
const union acpi_object *obj;
- struct acpi_device_data *data;
+ const struct acpi_device_data *data;
struct acpi_device *device;
int ret, idx = 0;
data = acpi_device_data_of_node(fwnode);
if (!data)
- return -EINVAL;
+ return -ENOENT;
ret = acpi_data_get_property(data, propname, ACPI_TYPE_ANY, &obj);
if (ret)
- return ret;
+ return ret == -EINVAL ? -ENOENT : -EINVAL;
/*
* The simplest case is when the value is a single reference. Just
@@ -599,7 +605,7 @@ int __acpi_node_get_property_reference(struct fwnode_handle *fwnode,
ret = acpi_bus_get_device(obj->reference.handle, &device);
if (ret)
- return ret;
+ return ret == -ENODEV ? -EINVAL : ret;
args->adev = device;
args->nargs = 0;
@@ -615,8 +621,10 @@ int __acpi_node_get_property_reference(struct fwnode_handle *fwnode,
* The index argument is then used to determine which reference
* the caller wants (along with the arguments).
*/
- if (obj->type != ACPI_TYPE_PACKAGE || index >= obj->package.count)
- return -EPROTO;
+ if (obj->type != ACPI_TYPE_PACKAGE)
+ return -EINVAL;
+ if (index >= obj->package.count)
+ return -ENOENT;
element = obj->package.elements;
end = element + obj->package.count;
@@ -628,7 +636,7 @@ int __acpi_node_get_property_reference(struct fwnode_handle *fwnode,
ret = acpi_bus_get_device(element->reference.handle,
&device);
if (ret)
- return -ENODEV;
+ return -EINVAL;
nargs = 0;
element++;
@@ -642,11 +650,11 @@ int __acpi_node_get_property_reference(struct fwnode_handle *fwnode,
else if (type == ACPI_TYPE_LOCAL_REFERENCE)
break;
else
- return -EPROTO;
+ return -EINVAL;
}
if (nargs > MAX_ACPI_REFERENCE_ARGS)
- return -EPROTO;
+ return -EINVAL;
if (idx == index) {
args->adev = device;
@@ -663,17 +671,17 @@ int __acpi_node_get_property_reference(struct fwnode_handle *fwnode,
return -ENOENT;
element++;
} else {
- return -EPROTO;
+ return -EINVAL;
}
idx++;
}
- return -ENODATA;
+ return -ENOENT;
}
EXPORT_SYMBOL_GPL(__acpi_node_get_property_reference);
-static int acpi_data_prop_read_single(struct acpi_device_data *data,
+static int acpi_data_prop_read_single(const struct acpi_device_data *data,
const char *propname,
enum dev_prop_type proptype, void *val)
{
@@ -812,7 +820,7 @@ static int acpi_copy_property_array_string(const union acpi_object *items,
return nval;
}
-static int acpi_data_prop_read(struct acpi_device_data *data,
+static int acpi_data_prop_read(const struct acpi_device_data *data,
const char *propname,
enum dev_prop_type proptype,
void *val, size_t nval)
@@ -866,7 +874,7 @@ static int acpi_data_prop_read(struct acpi_device_data *data,
return ret;
}
-int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
+int acpi_dev_prop_read(const struct acpi_device *adev, const char *propname,
enum dev_prop_type proptype, void *val, size_t nval)
{
return adev ? acpi_data_prop_read(&adev->data, propname, proptype, val, nval) : -EINVAL;
@@ -884,8 +892,9 @@ int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
* of the property. Otherwise, read at most @nval values to the array at the
* location pointed to by @val.
*/
-int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname,
- enum dev_prop_type proptype, void *val, size_t nval)
+int acpi_node_prop_read(const struct fwnode_handle *fwnode,
+ const char *propname, enum dev_prop_type proptype,
+ void *val, size_t nval)
{
return acpi_data_prop_read(acpi_device_data_of_node(fwnode),
propname, proptype, val, nval);
@@ -896,13 +905,16 @@ int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname,
* @fwnode: Firmware node to find the next child node for.
* @child: Handle to one of the device's child nodes or a null handle.
*/
-struct fwnode_handle *acpi_get_next_subnode(struct fwnode_handle *fwnode,
+struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
struct fwnode_handle *child)
{
- struct acpi_device *adev = to_acpi_device_node(fwnode);
- struct list_head *head, *next;
+ const struct acpi_device *adev = to_acpi_device_node(fwnode);
+ const struct list_head *head;
+ struct list_head *next;
+
+ if (!child || is_acpi_device_node(child)) {
+ struct acpi_device *child_adev;
- if (!child || child->type == FWNODE_ACPI) {
if (adev)
head = &adev->children;
else
@@ -918,16 +930,17 @@ struct fwnode_handle *acpi_get_next_subnode(struct fwnode_handle *fwnode,
child = NULL;
goto nondev;
}
- adev = list_entry(next, struct acpi_device, node);
+ child_adev = list_entry(next, struct acpi_device, node);
} else {
- adev = list_first_entry(head, struct acpi_device, node);
+ child_adev = list_first_entry(head, struct acpi_device,
+ node);
}
- return acpi_fwnode_handle(adev);
+ return acpi_fwnode_handle(child_adev);
}
nondev:
- if (!child || child->type == FWNODE_ACPI_DATA) {
- struct acpi_data_node *data = to_acpi_data_node(fwnode);
+ if (!child || is_acpi_data_node(child)) {
+ const struct acpi_data_node *data = to_acpi_data_node(fwnode);
struct acpi_data_node *dn;
if (adev)
@@ -962,7 +975,7 @@ struct fwnode_handle *acpi_get_next_subnode(struct fwnode_handle *fwnode,
* Returns parent node of an ACPI device or data firmware node or %NULL if
* not available.
*/
-struct fwnode_handle *acpi_node_get_parent(struct fwnode_handle *fwnode)
+struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode)
{
if (is_acpi_data_node(fwnode)) {
/* All data nodes have parent pointer so just return that */
@@ -991,8 +1004,8 @@ struct fwnode_handle *acpi_node_get_parent(struct fwnode_handle *fwnode)
* %NULL if there is no next endpoint, ERR_PTR() in case of error. In case
* of success the next endpoint is returned.
*/
-struct fwnode_handle *acpi_graph_get_next_endpoint(struct fwnode_handle *fwnode,
- struct fwnode_handle *prev)
+struct fwnode_handle *acpi_graph_get_next_endpoint(
+ const struct fwnode_handle *fwnode, struct fwnode_handle *prev)
{
struct fwnode_handle *port = NULL;
struct fwnode_handle *endpoint;
@@ -1039,14 +1052,15 @@ struct fwnode_handle *acpi_graph_get_next_endpoint(struct fwnode_handle *fwnode,
* the child node on success, NULL otherwise.
*/
static struct fwnode_handle *acpi_graph_get_child_prop_value(
- struct fwnode_handle *fwnode, const char *prop_name, unsigned int val)
+ const struct fwnode_handle *fwnode, const char *prop_name,
+ unsigned int val)
{
struct fwnode_handle *child;
fwnode_for_each_child_node(fwnode, child) {
u32 nr;
- if (!fwnode_property_read_u32(fwnode, prop_name, &nr))
+ if (fwnode_property_read_u32(child, prop_name, &nr))
continue;
if (val == nr)
@@ -1068,17 +1082,18 @@ static struct fwnode_handle *acpi_graph_get_child_prop_value(
* fields requested by the caller. Returns %0 in case of success and
* negative errno otherwise.
*/
-int acpi_graph_get_remote_endpoint(struct fwnode_handle *fwnode,
+int acpi_graph_get_remote_endpoint(const struct fwnode_handle *__fwnode,
struct fwnode_handle **parent,
struct fwnode_handle **port,
struct fwnode_handle **endpoint)
{
+ struct fwnode_handle *fwnode;
unsigned int port_nr, endpoint_nr;
struct acpi_reference_args args;
int ret;
memset(&args, 0, sizeof(args));
- ret = acpi_node_get_property_reference(fwnode, "remote-endpoint", 0,
+ ret = acpi_node_get_property_reference(__fwnode, "remote-endpoint", 0,
&args);
if (ret)
return ret;
@@ -1119,3 +1134,177 @@ int acpi_graph_get_remote_endpoint(struct fwnode_handle *fwnode,
return 0;
}
+
+static bool acpi_fwnode_device_is_available(const struct fwnode_handle *fwnode)
+{
+ if (!is_acpi_device_node(fwnode))
+ return false;
+
+ return acpi_device_is_present(to_acpi_device_node(fwnode));
+}
+
+static bool acpi_fwnode_property_present(const struct fwnode_handle *fwnode,
+ const char *propname)
+{
+ return !acpi_node_prop_get(fwnode, propname, NULL);
+}
+
+static int
+acpi_fwnode_property_read_int_array(const struct fwnode_handle *fwnode,
+ const char *propname,
+ unsigned int elem_size, void *val,
+ size_t nval)
+{
+ enum dev_prop_type type;
+
+ switch (elem_size) {
+ case sizeof(u8):
+ type = DEV_PROP_U8;
+ break;
+ case sizeof(u16):
+ type = DEV_PROP_U16;
+ break;
+ case sizeof(u32):
+ type = DEV_PROP_U32;
+ break;
+ case sizeof(u64):
+ type = DEV_PROP_U64;
+ break;
+ default:
+ return -ENXIO;
+ }
+
+ return acpi_node_prop_read(fwnode, propname, type, val, nval);
+}
+
+static int
+acpi_fwnode_property_read_string_array(const struct fwnode_handle *fwnode,
+ const char *propname, const char **val,
+ size_t nval)
+{
+ return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING,
+ val, nval);
+}
+
+static struct fwnode_handle *
+acpi_fwnode_get_named_child_node(const struct fwnode_handle *fwnode,
+ const char *childname)
+{
+ struct fwnode_handle *child;
+
+ /*
+ * Find first matching named child node of this fwnode.
+ * For ACPI this will be a data only sub-node.
+ */
+ fwnode_for_each_child_node(fwnode, child)
+ if (acpi_data_node_match(child, childname))
+ return child;
+
+ return NULL;
+}
+
+static int
+acpi_fwnode_get_reference_args(const struct fwnode_handle *fwnode,
+ const char *prop, const char *nargs_prop,
+ unsigned int args_count, unsigned int index,
+ struct fwnode_reference_args *args)
+{
+ struct acpi_reference_args acpi_args;
+ unsigned int i;
+ int ret;
+
+ ret = __acpi_node_get_property_reference(fwnode, prop, index,
+ args_count, &acpi_args);
+ if (ret < 0)
+ return ret;
+ if (!args)
+ return 0;
+
+ args->nargs = acpi_args.nargs;
+ args->fwnode = acpi_fwnode_handle(acpi_args.adev);
+
+ for (i = 0; i < NR_FWNODE_REFERENCE_ARGS; i++)
+ args->args[i] = i < acpi_args.nargs ? acpi_args.args[i] : 0;
+
+ return 0;
+}
+
+static struct fwnode_handle *
+acpi_fwnode_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
+ struct fwnode_handle *prev)
+{
+ struct fwnode_handle *endpoint;
+
+ endpoint = acpi_graph_get_next_endpoint(fwnode, prev);
+ if (IS_ERR(endpoint))
+ return NULL;
+
+ return endpoint;
+}
+
+static struct fwnode_handle *
+acpi_fwnode_graph_get_remote_endpoint(const struct fwnode_handle *fwnode)
+{
+ struct fwnode_handle *endpoint = NULL;
+
+ acpi_graph_get_remote_endpoint(fwnode, NULL, NULL, &endpoint);
+
+ return endpoint;
+}
+
+static struct fwnode_handle *
+acpi_fwnode_get_parent(struct fwnode_handle *fwnode)
+{
+ return acpi_node_get_parent(fwnode);
+}
+
+static int acpi_fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode,
+ struct fwnode_endpoint *endpoint)
+{
+ struct fwnode_handle *port_fwnode = fwnode_get_parent(fwnode);
+
+ endpoint->local_fwnode = fwnode;
+
+ fwnode_property_read_u32(port_fwnode, "port", &endpoint->port);
+ fwnode_property_read_u32(fwnode, "endpoint", &endpoint->id);
+
+ return 0;
+}
+
+#define DECLARE_ACPI_FWNODE_OPS(ops) \
+ const struct fwnode_operations ops = { \
+ .device_is_available = acpi_fwnode_device_is_available, \
+ .property_present = acpi_fwnode_property_present, \
+ .property_read_int_array = \
+ acpi_fwnode_property_read_int_array, \
+ .property_read_string_array = \
+ acpi_fwnode_property_read_string_array, \
+ .get_parent = acpi_node_get_parent, \
+ .get_next_child_node = acpi_get_next_subnode, \
+ .get_named_child_node = acpi_fwnode_get_named_child_node, \
+ .get_reference_args = acpi_fwnode_get_reference_args, \
+ .graph_get_next_endpoint = \
+ acpi_fwnode_graph_get_next_endpoint, \
+ .graph_get_remote_endpoint = \
+ acpi_fwnode_graph_get_remote_endpoint, \
+ .graph_get_port_parent = acpi_fwnode_get_parent, \
+ .graph_parse_endpoint = acpi_fwnode_graph_parse_endpoint, \
+ }; \
+ EXPORT_SYMBOL_GPL(ops)
+
+DECLARE_ACPI_FWNODE_OPS(acpi_device_fwnode_ops);
+DECLARE_ACPI_FWNODE_OPS(acpi_data_fwnode_ops);
+const struct fwnode_operations acpi_static_fwnode_ops;
+
+bool is_acpi_device_node(const struct fwnode_handle *fwnode)
+{
+ return !IS_ERR_OR_NULL(fwnode) &&
+ fwnode->ops == &acpi_device_fwnode_ops;
+}
+EXPORT_SYMBOL(is_acpi_device_node);
+
+bool is_acpi_data_node(const struct fwnode_handle *fwnode)
+{
+ return !IS_ERR_OR_NULL(fwnode) && fwnode->ops == &acpi_data_fwnode_ops;
+}
+EXPORT_SYMBOL(is_acpi_data_node);
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index cd4c4271dc4c..d85e010ee2cc 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -573,6 +573,35 @@ static acpi_status acpi_dev_process_resource(struct acpi_resource *ares,
return AE_OK;
}
+static int __acpi_dev_get_resources(struct acpi_device *adev,
+ struct list_head *list,
+ int (*preproc)(struct acpi_resource *, void *),
+ void *preproc_data, char *method)
+{
+ struct res_proc_context c;
+ acpi_status status;
+
+ if (!adev || !adev->handle || !list_empty(list))
+ return -EINVAL;
+
+ if (!acpi_has_method(adev->handle, method))
+ return 0;
+
+ c.list = list;
+ c.preproc = preproc;
+ c.preproc_data = preproc_data;
+ c.count = 0;
+ c.error = 0;
+ status = acpi_walk_resources(adev->handle, method,
+ acpi_dev_process_resource, &c);
+ if (ACPI_FAILURE(status)) {
+ acpi_dev_free_resource_list(list);
+ return c.error ? c.error : -EIO;
+ }
+
+ return c.count;
+}
+
/**
* acpi_dev_get_resources - Get current resources of a device.
* @adev: ACPI device node to get the resources for.
@@ -601,30 +630,45 @@ int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
int (*preproc)(struct acpi_resource *, void *),
void *preproc_data)
{
- struct res_proc_context c;
- acpi_status status;
+ return __acpi_dev_get_resources(adev, list, preproc, preproc_data,
+ METHOD_NAME__CRS);
+}
+EXPORT_SYMBOL_GPL(acpi_dev_get_resources);
- if (!adev || !adev->handle || !list_empty(list))
- return -EINVAL;
+static int is_memory(struct acpi_resource *ares, void *not_used)
+{
+ struct resource_win win;
+ struct resource *res = &win.res;
- if (!acpi_has_method(adev->handle, METHOD_NAME__CRS))
- return 0;
+ memset(&win, 0, sizeof(win));
- c.list = list;
- c.preproc = preproc;
- c.preproc_data = preproc_data;
- c.count = 0;
- c.error = 0;
- status = acpi_walk_resources(adev->handle, METHOD_NAME__CRS,
- acpi_dev_process_resource, &c);
- if (ACPI_FAILURE(status)) {
- acpi_dev_free_resource_list(list);
- return c.error ? c.error : -EIO;
- }
+ return !(acpi_dev_resource_memory(ares, res)
+ || acpi_dev_resource_address_space(ares, &win)
+ || acpi_dev_resource_ext_address_space(ares, &win));
+}
- return c.count;
+/**
+ * acpi_dev_get_dma_resources - Get current DMA resources of a device.
+ * @adev: ACPI device node to get the resources for.
+ * @list: Head of the resultant list of resources (must be empty).
+ *
+ * Evaluate the _DMA method for the given device node and process its
+ * output.
+ *
+ * The resultant struct resource objects are put on the list pointed to
+ * by @list, that must be empty initially, as members of struct
+ * resource_entry objects. Callers of this routine should use
+ * %acpi_dev_free_resource_list() to free that list.
+ *
+ * The number of resources in the output list is returned on success,
+ * an error code reflecting the error condition is returned otherwise.
+ */
+int acpi_dev_get_dma_resources(struct acpi_device *adev, struct list_head *list)
+{
+ return __acpi_dev_get_resources(adev, list, is_memory, NULL,
+ METHOD_NAME__DMA);
}
-EXPORT_SYMBOL_GPL(acpi_dev_get_resources);
+EXPORT_SYMBOL_GPL(acpi_dev_get_dma_resources);
/**
* acpi_dev_filter_resource_type - Filter ACPI resource according to resource
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index ad0b13ad4bbb..a2428e9462dd 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -31,7 +31,7 @@
#include <linux/jiffies.h>
#include <linux/delay.h>
#include <linux/power_supply.h>
-#include <linux/dmi.h>
+#include <linux/platform_data/x86/apple.h>
#include "sbshc.h"
#include "battery.h"
@@ -58,8 +58,6 @@ static unsigned int cache_time = 1000;
module_param(cache_time, uint, 0644);
MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
-static bool sbs_manager_broken;
-
#define MAX_SBS_BAT 4
#define ACPI_SBS_BLOCK_MAX 32
@@ -476,7 +474,7 @@ static ssize_t acpi_battery_alarm_store(struct device *dev,
return count;
}
-static struct device_attribute alarm_attr = {
+static const struct device_attribute alarm_attr = {
.attr = {.name = "alarm", .mode = 0644},
.show = acpi_battery_alarm_show,
.store = acpi_battery_alarm_store,
@@ -632,31 +630,12 @@ static void acpi_sbs_callback(void *context)
}
}
-static int disable_sbs_manager(const struct dmi_system_id *d)
-{
- sbs_manager_broken = true;
- return 0;
-}
-
-static struct dmi_system_id acpi_sbs_dmi_table[] = {
- {
- .callback = disable_sbs_manager,
- .ident = "Apple",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc.")
- },
- },
- { },
-};
-
static int acpi_sbs_add(struct acpi_device *device)
{
struct acpi_sbs *sbs;
int result = 0;
int id;
- dmi_check_system(acpi_sbs_dmi_table);
-
sbs = kzalloc(sizeof(struct acpi_sbs), GFP_KERNEL);
if (!sbs) {
result = -ENOMEM;
@@ -677,7 +656,7 @@ static int acpi_sbs_add(struct acpi_device *device)
result = 0;
- if (!sbs_manager_broken) {
+ if (!x86_apple_machine) {
result = acpi_manager_get_info(sbs);
if (!result) {
sbs->manager_present = 1;
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index d53162997f32..602f8ff212f2 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -13,6 +13,7 @@
#include <linux/dmi.h>
#include <linux/nls.h>
#include <linux/dma-mapping.h>
+#include <linux/platform_data/x86/apple.h>
#include <asm/pgtable.h>
@@ -404,10 +405,6 @@ void acpi_device_hotplug(struct acpi_device *adev, u32 src)
error = dock_notify(adev, src);
} else if (adev->flags.hotplug_notify) {
error = acpi_generic_hotplug_event(adev, src);
- if (error == -EPERM) {
- ost_code = ACPI_OST_SC_EJECT_NOT_SUPPORTED;
- goto err_out;
- }
} else {
int (*notify)(struct acpi_device *, u32);
@@ -423,8 +420,20 @@ void acpi_device_hotplug(struct acpi_device *adev, u32 src)
else
goto out;
}
- if (!error)
+ switch (error) {
+ case 0:
ost_code = ACPI_OST_SC_SUCCESS;
+ break;
+ case -EPERM:
+ ost_code = ACPI_OST_SC_EJECT_NOT_SUPPORTED;
+ break;
+ case -EBUSY:
+ ost_code = ACPI_OST_SC_DEVICE_BUSY;
+ break;
+ default:
+ ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE;
+ break;
+ }
err_out:
acpi_evaluate_ost(adev->handle, src, ost_code, NULL);
@@ -835,7 +844,7 @@ static int acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
return err;
}
-static void acpi_wakeup_gpe_init(struct acpi_device *device)
+static bool acpi_wakeup_gpe_init(struct acpi_device *device)
{
static const struct acpi_device_id button_device_ids[] = {
{"PNP0C0C", 0},
@@ -845,13 +854,11 @@ static void acpi_wakeup_gpe_init(struct acpi_device *device)
};
struct acpi_device_wakeup *wakeup = &device->wakeup;
acpi_status status;
- acpi_event_status event_status;
wakeup->flags.notifier_present = 0;
/* Power button, Lid switch always enable wakeup */
if (!acpi_match_device_ids(device, button_device_ids)) {
- wakeup->flags.run_wake = 1;
if (!acpi_match_device_ids(device, &button_device_ids[1])) {
/* Do not use Lid/sleep button for S5 wakeup */
if (wakeup->sleep_state == ACPI_STATE_S5)
@@ -859,17 +866,12 @@ static void acpi_wakeup_gpe_init(struct acpi_device *device)
}
acpi_mark_gpe_for_wake(wakeup->gpe_device, wakeup->gpe_number);
device_set_wakeup_capable(&device->dev, true);
- return;
+ return true;
}
- acpi_setup_gpe_for_wake(device->handle, wakeup->gpe_device,
- wakeup->gpe_number);
- status = acpi_get_gpe_status(wakeup->gpe_device, wakeup->gpe_number,
- &event_status);
- if (ACPI_FAILURE(status))
- return;
-
- wakeup->flags.run_wake = !!(event_status & ACPI_EVENT_FLAG_HAS_HANDLER);
+ status = acpi_setup_gpe_for_wake(device->handle, wakeup->gpe_device,
+ wakeup->gpe_number);
+ return ACPI_SUCCESS(status);
}
static void acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
@@ -887,10 +889,10 @@ static void acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
return;
}
- device->wakeup.flags.valid = 1;
+ device->wakeup.flags.valid = acpi_wakeup_gpe_init(device);
device->wakeup.prepare_count = 0;
- acpi_wakeup_gpe_init(device);
- /* Call _PSW/_DSW object to disable its ability to wake the sleeping
+ /*
+ * Call _PSW/_DSW object to disable its ability to wake the sleeping
* system for the ACPI device with the _PRW object.
* The _PSW object is depreciated in ACPI 3.0 and is replaced by _DSW.
* So it is necessary to call _DSW object first. Only when it is not
@@ -1359,6 +1361,85 @@ enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
}
/**
+ * acpi_dma_get_range() - Get device DMA parameters.
+ *
+ * @dev: device to configure
+ * @dma_addr: pointer device DMA address result
+ * @offset: pointer to the DMA offset result
+ * @size: pointer to DMA range size result
+ *
+ * Evaluate DMA regions and return respectively DMA region start, offset
+ * and size in dma_addr, offset and size on parsing success; it does not
+ * update the passed in values on failure.
+ *
+ * Return 0 on success, < 0 on failure.
+ */
+int acpi_dma_get_range(struct device *dev, u64 *dma_addr, u64 *offset,
+ u64 *size)
+{
+ struct acpi_device *adev;
+ LIST_HEAD(list);
+ struct resource_entry *rentry;
+ int ret;
+ struct device *dma_dev = dev;
+ u64 len, dma_start = U64_MAX, dma_end = 0, dma_offset = 0;
+
+ /*
+ * Walk the device tree chasing an ACPI companion with a _DMA
+ * object while we go. Stop if we find a device with an ACPI
+ * companion containing a _DMA method.
+ */
+ do {
+ adev = ACPI_COMPANION(dma_dev);
+ if (adev && acpi_has_method(adev->handle, METHOD_NAME__DMA))
+ break;
+
+ dma_dev = dma_dev->parent;
+ } while (dma_dev);
+
+ if (!dma_dev)
+ return -ENODEV;
+
+ if (!acpi_has_method(adev->handle, METHOD_NAME__CRS)) {
+ acpi_handle_warn(adev->handle, "_DMA is valid only if _CRS is present\n");
+ return -EINVAL;
+ }
+
+ ret = acpi_dev_get_dma_resources(adev, &list);
+ if (ret > 0) {
+ list_for_each_entry(rentry, &list, node) {
+ if (dma_offset && rentry->offset != dma_offset) {
+ ret = -EINVAL;
+ dev_warn(dma_dev, "Can't handle multiple windows with different offsets\n");
+ goto out;
+ }
+ dma_offset = rentry->offset;
+
+ /* Take lower and upper limits */
+ if (rentry->res->start < dma_start)
+ dma_start = rentry->res->start;
+ if (rentry->res->end > dma_end)
+ dma_end = rentry->res->end;
+ }
+
+ if (dma_start >= dma_end) {
+ ret = -EINVAL;
+ dev_dbg(dma_dev, "Invalid DMA regions configuration\n");
+ goto out;
+ }
+
+ *dma_addr = dma_start - dma_offset;
+ len = dma_end - dma_start;
+ *size = max(len, len + 1);
+ *offset = dma_offset;
+ }
+ out:
+ acpi_dev_free_resource_list(&list);
+
+ return ret >= 0 ? 0 : ret;
+}
+
+/**
* acpi_dma_configure - Set-up DMA configuration for the device.
* @dev: The pointer to the device
* @attr: device dma attributes
@@ -1366,20 +1447,16 @@ enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
int acpi_dma_configure(struct device *dev, enum dev_dma_attr attr)
{
const struct iommu_ops *iommu;
- u64 size;
+ u64 dma_addr = 0, size = 0;
- iort_set_dma_mask(dev);
+ iort_dma_setup(dev, &dma_addr, &size);
iommu = iort_iommu_configure(dev);
if (IS_ERR(iommu) && PTR_ERR(iommu) == -EPROBE_DEFER)
return -EPROBE_DEFER;
- size = max(dev->coherent_dma_mask, dev->coherent_dma_mask + 1);
- /*
- * Assume dma valid range starts at 0 and covers the whole
- * coherent_dma_mask.
- */
- arch_setup_dma_ops(dev, 0, size, iommu, attr == DEV_DMA_COHERENT);
+ arch_setup_dma_ops(dev, dma_addr, size,
+ iommu, attr == DEV_DMA_COHERENT);
return 0;
}
@@ -1451,6 +1528,12 @@ static bool acpi_is_spi_i2c_slave(struct acpi_device *device)
struct list_head resource_list;
bool is_spi_i2c_slave = false;
+ /* Macs use device properties in lieu of _CRS resources */
+ if (x86_apple_machine &&
+ (fwnode_property_present(&device->fwnode, "spiSclkPeriod") ||
+ fwnode_property_present(&device->fwnode, "i2cAddress")))
+ return true;
+
INIT_LIST_HEAD(&resource_list);
acpi_dev_get_resources(device, &resource_list, acpi_check_spi_i2c_slave,
&is_spi_i2c_slave);
@@ -1466,7 +1549,7 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
device->device_type = type;
device->handle = handle;
device->parent = acpi_bus_get_parent(handle);
- device->fwnode.type = FWNODE_ACPI;
+ device->fwnode.ops = &acpi_device_fwnode_ops;
acpi_set_device_status(device, sta);
acpi_device_get_busid(device);
acpi_set_pnp_ids(handle, &device->pnp, type);
@@ -1599,13 +1682,9 @@ static int acpi_bus_type_and_status(acpi_handle handle, int *type,
return 0;
}
-bool acpi_device_is_present(struct acpi_device *adev)
+bool acpi_device_is_present(const struct acpi_device *adev)
{
- if (adev->status.present || adev->status.functional)
- return true;
-
- adev->flags.initialized = false;
- return false;
+ return adev->status.present || adev->status.functional;
}
static bool acpi_scan_handler_matching(struct acpi_scan_handler *handler,
@@ -1838,6 +1917,7 @@ static void acpi_bus_attach(struct acpi_device *device)
acpi_bus_get_status(device);
/* Skip devices that are not present. */
if (!acpi_device_is_present(device)) {
+ device->flags.initialized = false;
acpi_device_clear_enumerated(device);
device->flags.power_manageable = 0;
return;
@@ -2059,6 +2139,9 @@ int __init acpi_scan_init(void)
acpi_get_spcr_uart_addr();
}
+ acpi_gpe_apply_masked_gpes();
+ acpi_update_all_gpes();
+
mutex_lock(&acpi_scan_lock);
/*
* Enumerate devices in the ACPI namespace.
@@ -2083,10 +2166,6 @@ int __init acpi_scan_init(void)
}
}
- acpi_gpe_apply_masked_gpes();
- acpi_update_all_gpes();
- acpi_ec_ecdt_start();
-
acpi_scan_initialized = true;
out:
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 097d630ab886..6804ddab3052 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -160,7 +160,7 @@ static int __init init_nvs_nosave(const struct dmi_system_id *d)
return 0;
}
-static struct dmi_system_id acpisleep_dmi_table[] __initdata = {
+static const struct dmi_system_id acpisleep_dmi_table[] __initconst = {
{
.callback = init_old_suspend_ordering,
.ident = "Abit KN9 (nForce4 variant)",
@@ -650,40 +650,341 @@ static const struct platform_suspend_ops acpi_suspend_ops_old = {
.recover = acpi_pm_finish,
};
-static int acpi_freeze_begin(void)
+static bool s2idle_in_progress;
+static bool s2idle_wakeup;
+
+/*
+ * On platforms supporting the Low Power S0 Idle interface there is an ACPI
+ * device object with the PNP0D80 compatible device ID (System Power Management
+ * Controller) and a specific _DSM method under it. That method, if present,
+ * can be used to indicate to the platform that the OS is transitioning into a
+ * low-power state in which certain types of activity are not desirable or that
+ * it is leaving such a state, which allows the platform to adjust its operation
+ * mode accordingly.
+ */
+static const struct acpi_device_id lps0_device_ids[] = {
+ {"PNP0D80", },
+ {"", },
+};
+
+#define ACPI_LPS0_DSM_UUID "c4eb40a0-6cd2-11e2-bcfd-0800200c9a66"
+
+#define ACPI_LPS0_GET_DEVICE_CONSTRAINTS 1
+#define ACPI_LPS0_SCREEN_OFF 3
+#define ACPI_LPS0_SCREEN_ON 4
+#define ACPI_LPS0_ENTRY 5
+#define ACPI_LPS0_EXIT 6
+
+#define ACPI_S2IDLE_FUNC_MASK ((1 << ACPI_LPS0_ENTRY) | (1 << ACPI_LPS0_EXIT))
+
+static acpi_handle lps0_device_handle;
+static guid_t lps0_dsm_guid;
+static char lps0_dsm_func_mask;
+
+/* Device constraint entry structure */
+struct lpi_device_info {
+ char *name;
+ int enabled;
+ union acpi_object *package;
+};
+
+/* Constraint package structure */
+struct lpi_device_constraint {
+ int uid;
+ int min_dstate;
+ int function_states;
+};
+
+struct lpi_constraints {
+ acpi_handle handle;
+ int min_dstate;
+};
+
+static struct lpi_constraints *lpi_constraints_table;
+static int lpi_constraints_table_size;
+
+static void lpi_device_get_constraints(void)
+{
+ union acpi_object *out_obj;
+ int i;
+
+ out_obj = acpi_evaluate_dsm_typed(lps0_device_handle, &lps0_dsm_guid,
+ 1, ACPI_LPS0_GET_DEVICE_CONSTRAINTS,
+ NULL, ACPI_TYPE_PACKAGE);
+
+ acpi_handle_debug(lps0_device_handle, "_DSM function 1 eval %s\n",
+ out_obj ? "successful" : "failed");
+
+ if (!out_obj)
+ return;
+
+ lpi_constraints_table = kcalloc(out_obj->package.count,
+ sizeof(*lpi_constraints_table),
+ GFP_KERNEL);
+ if (!lpi_constraints_table)
+ goto free_acpi_buffer;
+
+ acpi_handle_debug(lps0_device_handle, "LPI: constraints list begin:\n");
+
+ for (i = 0; i < out_obj->package.count; i++) {
+ struct lpi_constraints *constraint;
+ acpi_status status;
+ union acpi_object *package = &out_obj->package.elements[i];
+ struct lpi_device_info info = { };
+ int package_count = 0, j;
+
+ if (!package)
+ continue;
+
+ for (j = 0; j < package->package.count; ++j) {
+ union acpi_object *element =
+ &(package->package.elements[j]);
+
+ switch (element->type) {
+ case ACPI_TYPE_INTEGER:
+ info.enabled = element->integer.value;
+ break;
+ case ACPI_TYPE_STRING:
+ info.name = element->string.pointer;
+ break;
+ case ACPI_TYPE_PACKAGE:
+ package_count = element->package.count;
+ info.package = element->package.elements;
+ break;
+ }
+ }
+
+ if (!info.enabled || !info.package || !info.name)
+ continue;
+
+ constraint = &lpi_constraints_table[lpi_constraints_table_size];
+
+ status = acpi_get_handle(NULL, info.name, &constraint->handle);
+ if (ACPI_FAILURE(status))
+ continue;
+
+ acpi_handle_debug(lps0_device_handle,
+ "index:%d Name:%s\n", i, info.name);
+
+ constraint->min_dstate = -1;
+
+ for (j = 0; j < package_count; ++j) {
+ union acpi_object *info_obj = &info.package[j];
+ union acpi_object *cnstr_pkg;
+ union acpi_object *obj;
+ struct lpi_device_constraint dev_info;
+
+ switch (info_obj->type) {
+ case ACPI_TYPE_INTEGER:
+ /* version */
+ break;
+ case ACPI_TYPE_PACKAGE:
+ if (info_obj->package.count < 2)
+ break;
+
+ cnstr_pkg = info_obj->package.elements;
+ obj = &cnstr_pkg[0];
+ dev_info.uid = obj->integer.value;
+ obj = &cnstr_pkg[1];
+ dev_info.min_dstate = obj->integer.value;
+
+ acpi_handle_debug(lps0_device_handle,
+ "uid:%d min_dstate:%s\n",
+ dev_info.uid,
+ acpi_power_state_string(dev_info.min_dstate));
+
+ constraint->min_dstate = dev_info.min_dstate;
+ break;
+ }
+ }
+
+ if (constraint->min_dstate < 0) {
+ acpi_handle_debug(lps0_device_handle,
+ "Incomplete constraint defined\n");
+ continue;
+ }
+
+ lpi_constraints_table_size++;
+ }
+
+ acpi_handle_debug(lps0_device_handle, "LPI: constraints list end\n");
+
+free_acpi_buffer:
+ ACPI_FREE(out_obj);
+}
+
+static void lpi_check_constraints(void)
+{
+ int i;
+
+ for (i = 0; i < lpi_constraints_table_size; ++i) {
+ struct acpi_device *adev;
+
+ if (acpi_bus_get_device(lpi_constraints_table[i].handle, &adev))
+ continue;
+
+ acpi_handle_debug(adev->handle,
+ "LPI: required min power state:%s current power state:%s\n",
+ acpi_power_state_string(lpi_constraints_table[i].min_dstate),
+ acpi_power_state_string(adev->power.state));
+
+ if (!adev->flags.power_manageable) {
+ acpi_handle_info(adev->handle, "LPI: Device not power manageble\n");
+ continue;
+ }
+
+ if (adev->power.state < lpi_constraints_table[i].min_dstate)
+ acpi_handle_info(adev->handle,
+ "LPI: Constraint not met; min power state:%s current power state:%s\n",
+ acpi_power_state_string(lpi_constraints_table[i].min_dstate),
+ acpi_power_state_string(adev->power.state));
+ }
+}
+
+static void acpi_sleep_run_lps0_dsm(unsigned int func)
+{
+ union acpi_object *out_obj;
+
+ if (!(lps0_dsm_func_mask & (1 << func)))
+ return;
+
+ out_obj = acpi_evaluate_dsm(lps0_device_handle, &lps0_dsm_guid, 1, func, NULL);
+ ACPI_FREE(out_obj);
+
+ acpi_handle_debug(lps0_device_handle, "_DSM function %u evaluation %s\n",
+ func, out_obj ? "successful" : "failed");
+}
+
+static int lps0_device_attach(struct acpi_device *adev,
+ const struct acpi_device_id *not_used)
+{
+ union acpi_object *out_obj;
+
+ if (lps0_device_handle)
+ return 0;
+
+ if (!(acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0))
+ return 0;
+
+ guid_parse(ACPI_LPS0_DSM_UUID, &lps0_dsm_guid);
+ /* Check if the _DSM is present and as expected. */
+ out_obj = acpi_evaluate_dsm(adev->handle, &lps0_dsm_guid, 1, 0, NULL);
+ if (out_obj && out_obj->type == ACPI_TYPE_BUFFER) {
+ char bitmask = *(char *)out_obj->buffer.pointer;
+
+ if ((bitmask & ACPI_S2IDLE_FUNC_MASK) == ACPI_S2IDLE_FUNC_MASK) {
+ lps0_dsm_func_mask = bitmask;
+ lps0_device_handle = adev->handle;
+ /*
+ * Use suspend-to-idle by default if the default
+ * suspend mode was not set from the command line.
+ */
+ if (mem_sleep_default > PM_SUSPEND_MEM)
+ mem_sleep_current = PM_SUSPEND_TO_IDLE;
+ }
+
+ acpi_handle_debug(adev->handle, "_DSM function mask: 0x%x\n",
+ bitmask);
+ } else {
+ acpi_handle_debug(adev->handle,
+ "_DSM function 0 evaluation failed\n");
+ }
+ ACPI_FREE(out_obj);
+
+ lpi_device_get_constraints();
+
+ return 0;
+}
+
+static struct acpi_scan_handler lps0_handler = {
+ .ids = lps0_device_ids,
+ .attach = lps0_device_attach,
+};
+
+static int acpi_s2idle_begin(void)
{
acpi_scan_lock_acquire();
+ s2idle_in_progress = true;
return 0;
}
-static int acpi_freeze_prepare(void)
+static int acpi_s2idle_prepare(void)
{
- acpi_enable_wakeup_devices(ACPI_STATE_S0);
- acpi_enable_all_wakeup_gpes();
- acpi_os_wait_events_complete();
+ if (lps0_device_handle) {
+ acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_OFF);
+ acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY);
+ } else {
+ /*
+ * The configuration of GPEs is changed here to avoid spurious
+ * wakeups, but that should not be necessary if this is a
+ * "low-power S0" platform and the low-power S0 _DSM is present.
+ */
+ acpi_enable_all_wakeup_gpes();
+ acpi_os_wait_events_complete();
+ }
if (acpi_sci_irq_valid())
enable_irq_wake(acpi_sci_irq);
+
return 0;
}
-static void acpi_freeze_restore(void)
+static void acpi_s2idle_wake(void)
+{
+
+ if (pm_debug_messages_on)
+ lpi_check_constraints();
+
+ /*
+ * If IRQD_WAKEUP_ARMED is not set for the SCI at this point, it means
+ * that the SCI has triggered while suspended, so cancel the wakeup in
+ * case it has not been a wakeup event (the GPEs will be checked later).
+ */
+ if (acpi_sci_irq_valid() &&
+ !irqd_is_wakeup_armed(irq_get_irq_data(acpi_sci_irq))) {
+ pm_system_cancel_wakeup();
+ s2idle_wakeup = true;
+ }
+}
+
+static void acpi_s2idle_sync(void)
+{
+ /*
+ * Process all pending events in case there are any wakeup ones.
+ *
+ * The EC driver uses the system workqueue and an additional special
+ * one, so those need to be flushed too.
+ */
+ acpi_ec_flush_work();
+ acpi_os_wait_events_complete();
+ s2idle_wakeup = false;
+}
+
+static void acpi_s2idle_restore(void)
{
- acpi_disable_wakeup_devices(ACPI_STATE_S0);
if (acpi_sci_irq_valid())
disable_irq_wake(acpi_sci_irq);
- acpi_enable_all_runtime_gpes();
+
+ if (lps0_device_handle) {
+ acpi_sleep_run_lps0_dsm(ACPI_LPS0_EXIT);
+ acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_ON);
+ } else {
+ acpi_enable_all_runtime_gpes();
+ }
}
-static void acpi_freeze_end(void)
+static void acpi_s2idle_end(void)
{
+ s2idle_in_progress = false;
acpi_scan_lock_release();
}
-static const struct platform_freeze_ops acpi_freeze_ops = {
- .begin = acpi_freeze_begin,
- .prepare = acpi_freeze_prepare,
- .restore = acpi_freeze_restore,
- .end = acpi_freeze_end,
+static const struct platform_s2idle_ops acpi_s2idle_ops = {
+ .begin = acpi_s2idle_begin,
+ .prepare = acpi_s2idle_prepare,
+ .wake = acpi_s2idle_wake,
+ .sync = acpi_s2idle_sync,
+ .restore = acpi_s2idle_restore,
+ .end = acpi_s2idle_end,
};
static void acpi_sleep_suspend_setup(void)
@@ -696,13 +997,28 @@ static void acpi_sleep_suspend_setup(void)
suspend_set_ops(old_suspend_ordering ?
&acpi_suspend_ops_old : &acpi_suspend_ops);
- freeze_set_ops(&acpi_freeze_ops);
+
+ acpi_scan_add_handler(&lps0_handler);
+ s2idle_set_ops(&acpi_s2idle_ops);
}
#else /* !CONFIG_SUSPEND */
+#define s2idle_in_progress (false)
+#define s2idle_wakeup (false)
+#define lps0_device_handle (NULL)
static inline void acpi_sleep_suspend_setup(void) {}
#endif /* !CONFIG_SUSPEND */
+bool acpi_s2idle_wakeup(void)
+{
+ return s2idle_wakeup;
+}
+
+bool acpi_sleep_no_ec_events(void)
+{
+ return !s2idle_in_progress || !lps0_device_handle;
+}
+
#ifdef CONFIG_PM_SLEEP
static u32 saved_bm_rld;
@@ -728,7 +1044,7 @@ static struct syscore_ops acpi_sleep_syscore_ops = {
.resume = acpi_restore_bm_rld,
};
-void acpi_sleep_syscore_init(void)
+static void acpi_sleep_syscore_init(void)
{
register_syscore_ops(&acpi_sleep_syscore_ops);
}
diff --git a/drivers/acpi/spcr.c b/drivers/acpi/spcr.c
index 3afa8c1fa127..324b35bfe781 100644
--- a/drivers/acpi/spcr.c
+++ b/drivers/acpi/spcr.c
@@ -17,6 +17,16 @@
#include <linux/serial_core.h>
/*
+ * Erratum 44 for QDF2432v1 and QDF2400v1 SoCs describes the BUSY bit as
+ * occasionally getting stuck as 1. To avoid the potential for a hang, check
+ * TXFE == 0 instead of BUSY == 1. This may not be suitable for all UART
+ * implementations, so only do so if an affected platform is detected in
+ * parse_spcr().
+ */
+bool qdf2400_e44_present;
+EXPORT_SYMBOL(qdf2400_e44_present);
+
+/*
* Some Qualcomm Datacenter Technologies SoCs have a defective UART BUSY bit.
* Detect them by examining the OEM fields in the SPCR header, similiar to PCI
* quirk detection in pci_mcfg.c.
@@ -36,6 +46,33 @@ static bool qdf2400_erratum_44_present(struct acpi_table_header *h)
return false;
}
+/*
+ * APM X-Gene v1 and v2 UART hardware is an 16550 like device but has its
+ * register aligned to 32-bit. In addition, the BIOS also encoded the
+ * access width to be 8 bits. This function detects this errata condition.
+ */
+static bool xgene_8250_erratum_present(struct acpi_table_spcr *tb)
+{
+ bool xgene_8250 = false;
+
+ if (tb->interface_type != ACPI_DBG2_16550_COMPATIBLE)
+ return false;
+
+ if (memcmp(tb->header.oem_id, "APMC0D", ACPI_OEM_ID_SIZE) &&
+ memcmp(tb->header.oem_id, "HPE ", ACPI_OEM_ID_SIZE))
+ return false;
+
+ if (!memcmp(tb->header.oem_table_id, "XGENESPC",
+ ACPI_OEM_TABLE_ID_SIZE) && tb->header.oem_revision == 0)
+ xgene_8250 = true;
+
+ if (!memcmp(tb->header.oem_table_id, "ProLiant",
+ ACPI_OEM_TABLE_ID_SIZE) && tb->header.oem_revision == 1)
+ xgene_8250 = true;
+
+ return xgene_8250;
+}
+
/**
* parse_spcr() - parse ACPI SPCR table and add preferred console
*
@@ -74,8 +111,23 @@ int __init parse_spcr(bool earlycon)
goto done;
}
- iotype = table->serial_port.space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY ?
- "mmio" : "io";
+ if (table->serial_port.space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
+ switch (ACPI_ACCESS_BIT_WIDTH((
+ table->serial_port.access_width))) {
+ default:
+ pr_err("Unexpected SPCR Access Width. Defaulting to byte size\n");
+ case 8:
+ iotype = "mmio";
+ break;
+ case 16:
+ iotype = "mmio16";
+ break;
+ case 32:
+ iotype = "mmio32";
+ break;
+ }
+ } else
+ iotype = "io";
switch (table->interface_type) {
case ACPI_DBG2_ARM_SBSA_32BIT:
@@ -113,11 +165,43 @@ int __init parse_spcr(bool earlycon)
goto done;
}
- if (qdf2400_erratum_44_present(&table->header))
- uart = "qdf2400_e44";
+ /*
+ * If the E44 erratum is required, then we need to tell the pl011
+ * driver to implement the work-around.
+ *
+ * The global variable is used by the probe function when it
+ * creates the UARTs, whether or not they're used as a console.
+ *
+ * If the user specifies "traditional" earlycon, the qdf2400_e44
+ * console name matches the EARLYCON_DECLARE() statement, and
+ * SPCR is not used. Parameter "earlycon" is false.
+ *
+ * If the user specifies "SPCR" earlycon, then we need to update
+ * the console name so that it also says "qdf2400_e44". Parameter
+ * "earlycon" is true.
+ *
+ * For consistency, if we change the console name, then we do it
+ * for everyone, not just earlycon.
+ */
+ if (qdf2400_erratum_44_present(&table->header)) {
+ qdf2400_e44_present = true;
+ if (earlycon)
+ uart = "qdf2400_e44";
+ }
+
+ if (xgene_8250_erratum_present(table)) {
+ iotype = "mmio32";
- snprintf(opts, sizeof(opts), "%s,%s,0x%llx,%d", uart, iotype,
- table->serial_port.address, baud_rate);
+ /* for xgene v1 and v2 we don't know the clock rate of the
+ * UART so don't attempt to change to the baud rate state
+ * in the table because driver cannot calculate the dividers
+ */
+ snprintf(opts, sizeof(opts), "%s,%s,0x%llx", uart, iotype,
+ table->serial_port.address);
+ } else {
+ snprintf(opts, sizeof(opts), "%s,%s,0x%llx,%d", uart, iotype,
+ table->serial_port.address, baud_rate);
+ }
pr_info("console: %s\n", opts);
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index e414fabf7315..78a5a23010ab 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -2,6 +2,8 @@
* sysfs.c - ACPI sysfs interface to userspace.
*/
+#define pr_fmt(fmt) "ACPI: " fmt
+
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/moduleparam.h>
@@ -306,11 +308,13 @@ module_param_call(acpica_version, NULL, param_get_acpica_version, NULL, 0444);
/*
* ACPI table sysfs I/F:
* /sys/firmware/acpi/tables/
+ * /sys/firmware/acpi/tables/data/
* /sys/firmware/acpi/tables/dynamic/
*/
static LIST_HEAD(acpi_table_attr_list);
static struct kobject *tables_kobj;
+static struct kobject *tables_data_kobj;
static struct kobject *dynamic_tables_kobj;
static struct kobject *hotplug_kobj;
@@ -325,6 +329,11 @@ struct acpi_table_attr {
struct list_head node;
};
+struct acpi_data_attr {
+ struct bin_attribute attr;
+ u64 addr;
+};
+
static ssize_t acpi_table_show(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr, char *buf,
loff_t offset, size_t count)
@@ -420,6 +429,70 @@ acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context)
return AE_OK;
}
+static ssize_t acpi_data_show(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr, char *buf,
+ loff_t offset, size_t count)
+{
+ struct acpi_data_attr *data_attr;
+ void __iomem *base;
+ ssize_t rc;
+
+ data_attr = container_of(bin_attr, struct acpi_data_attr, attr);
+
+ base = acpi_os_map_memory(data_attr->addr, data_attr->attr.size);
+ if (!base)
+ return -ENOMEM;
+ rc = memory_read_from_buffer(buf, count, &offset, base,
+ data_attr->attr.size);
+ acpi_os_unmap_memory(base, data_attr->attr.size);
+
+ return rc;
+}
+
+static int acpi_bert_data_init(void *th, struct acpi_data_attr *data_attr)
+{
+ struct acpi_table_bert *bert = th;
+
+ if (bert->header.length < sizeof(struct acpi_table_bert) ||
+ bert->region_length < sizeof(struct acpi_hest_generic_status)) {
+ kfree(data_attr);
+ return -EINVAL;
+ }
+ data_attr->addr = bert->address;
+ data_attr->attr.size = bert->region_length;
+ data_attr->attr.attr.name = "BERT";
+
+ return sysfs_create_bin_file(tables_data_kobj, &data_attr->attr);
+}
+
+static struct acpi_data_obj {
+ char *name;
+ int (*fn)(void *, struct acpi_data_attr *);
+} acpi_data_objs[] = {
+ { ACPI_SIG_BERT, acpi_bert_data_init },
+};
+
+#define NUM_ACPI_DATA_OBJS ARRAY_SIZE(acpi_data_objs)
+
+static int acpi_table_data_init(struct acpi_table_header *th)
+{
+ struct acpi_data_attr *data_attr;
+ int i;
+
+ for (i = 0; i < NUM_ACPI_DATA_OBJS; i++) {
+ if (ACPI_COMPARE_NAME(th->signature, acpi_data_objs[i].name)) {
+ data_attr = kzalloc(sizeof(*data_attr), GFP_KERNEL);
+ if (!data_attr)
+ return -ENOMEM;
+ sysfs_attr_init(&data_attr->attr.attr);
+ data_attr->attr.read = acpi_data_show;
+ data_attr->attr.attr.mode = 0400;
+ return acpi_data_objs[i].fn(th, data_attr);
+ }
+ }
+ return 0;
+}
+
static int acpi_tables_sysfs_init(void)
{
struct acpi_table_attr *table_attr;
@@ -432,6 +505,10 @@ static int acpi_tables_sysfs_init(void)
if (!tables_kobj)
goto err;
+ tables_data_kobj = kobject_create_and_add("data", tables_kobj);
+ if (!tables_data_kobj)
+ goto err_tables_data;
+
dynamic_tables_kobj = kobject_create_and_add("dynamic", tables_kobj);
if (!dynamic_tables_kobj)
goto err_dynamic_tables;
@@ -456,13 +533,17 @@ static int acpi_tables_sysfs_init(void)
return ret;
}
list_add_tail(&table_attr->node, &acpi_table_attr_list);
+ acpi_table_data_init(table_header);
}
kobject_uevent(tables_kobj, KOBJ_ADD);
+ kobject_uevent(tables_data_kobj, KOBJ_ADD);
kobject_uevent(dynamic_tables_kobj, KOBJ_ADD);
return 0;
err_dynamic_tables:
+ kobject_put(tables_data_kobj);
+err_tables_data:
kobject_put(tables_kobj);
err:
return -ENOMEM;
@@ -552,11 +633,15 @@ static void fixed_event_count(u32 event_number)
static void acpi_global_event_handler(u32 event_type, acpi_handle device,
u32 event_number, void *context)
{
- if (event_type == ACPI_EVENT_TYPE_GPE)
+ if (event_type == ACPI_EVENT_TYPE_GPE) {
gpe_count(event_number);
-
- if (event_type == ACPI_EVENT_TYPE_FIXED)
+ pr_debug("GPE event 0x%02x\n", event_number);
+ } else if (event_type == ACPI_EVENT_TYPE_FIXED) {
fixed_event_count(event_number);
+ pr_debug("Fixed event 0x%02x\n", event_number);
+ } else {
+ pr_debug("Other event 0x%02x\n", event_number);
+ }
}
static int get_status(u32 index, acpi_event_status *status,
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index ff425390bfa8..80ce2a7d224b 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -740,10 +740,10 @@ int __init acpi_table_init(void)
if (acpi_verify_table_checksum) {
pr_info("Early table checksum verification enabled\n");
- acpi_gbl_verify_table_checksum = TRUE;
+ acpi_gbl_enable_table_validation = TRUE;
} else {
pr_info("Early table checksum verification disabled\n");
- acpi_gbl_verify_table_checksum = FALSE;
+ acpi_gbl_enable_table_validation = FALSE;
}
status = acpi_initialize_tables(initial_tables, ACPI_MAX_TABLES, 0);
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 1d0417b87cb7..551b71a24b85 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -1209,7 +1209,7 @@ static int thermal_psv(const struct dmi_system_id *d) {
return 0;
}
-static struct dmi_system_id thermal_dmi_table[] __initdata = {
+static const struct dmi_system_id thermal_dmi_table[] __initconst = {
/*
* Award BIOS on this AOpen makes thermal control almost worthless.
* http://bugzilla.kernel.org/show_bug.cgi?id=8842
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index 27d0dcfcf47d..0a9e5979aaa9 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -613,19 +613,19 @@ acpi_status acpi_evaluate_lck(acpi_handle handle, int lock)
/**
* acpi_evaluate_dsm - evaluate device's _DSM method
* @handle: ACPI device handle
- * @uuid: UUID of requested functions, should be 16 bytes
+ * @guid: GUID of requested functions, should be 16 bytes
* @rev: revision number of requested function
* @func: requested function number
* @argv4: the function specific parameter
*
- * Evaluate device's _DSM method with specified UUID, revision id and
+ * Evaluate device's _DSM method with specified GUID, revision id and
* function number. Caller needs to free the returned object.
*
* Though ACPI defines the fourth parameter for _DSM should be a package,
* some old BIOSes do expect a buffer or an integer etc.
*/
union acpi_object *
-acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 func,
+acpi_evaluate_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 func,
union acpi_object *argv4)
{
acpi_status ret;
@@ -638,7 +638,7 @@ acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 func,
params[0].type = ACPI_TYPE_BUFFER;
params[0].buffer.length = 16;
- params[0].buffer.pointer = (char *)uuid;
+ params[0].buffer.pointer = (u8 *)guid;
params[1].type = ACPI_TYPE_INTEGER;
params[1].integer.value = rev;
params[2].type = ACPI_TYPE_INTEGER;
@@ -666,7 +666,7 @@ EXPORT_SYMBOL(acpi_evaluate_dsm);
/**
* acpi_check_dsm - check if _DSM method supports requested functions.
* @handle: ACPI device handle
- * @uuid: UUID of requested functions, should be 16 bytes at least
+ * @guid: GUID of requested functions, should be 16 bytes at least
* @rev: revision number of requested functions
* @funcs: bitmap of requested functions
*
@@ -674,7 +674,7 @@ EXPORT_SYMBOL(acpi_evaluate_dsm);
* functions. Currently only support 64 functions at maximum, should be
* enough for now.
*/
-bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 funcs)
+bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 funcs)
{
int i;
u64 mask = 0;
@@ -683,7 +683,7 @@ bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 funcs)
if (funcs == 0)
return false;
- obj = acpi_evaluate_dsm(handle, uuid, rev, 0, NULL);
+ obj = acpi_evaluate_dsm(handle, guid, rev, 0, NULL);
if (!obj)
return false;
@@ -697,7 +697,7 @@ bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 funcs)
/*
* Bit 0 indicates whether there's support for any functions other than
- * function 0 for the specified UUID and revision.
+ * function 0 for the specified GUID and revision.
*/
if ((mask & 0x1) && (mask & funcs) == funcs)
return true;
@@ -816,3 +816,39 @@ static int __init acpi_backlight(char *str)
return 1;
}
__setup("acpi_backlight=", acpi_backlight);
+
+/**
+ * acpi_match_platform_list - Check if the system matches with a given list
+ * @plat: pointer to acpi_platform_list table terminated by a NULL entry
+ *
+ * Return the matched index if the system is found in the platform list.
+ * Otherwise, return a negative error code.
+ */
+int acpi_match_platform_list(const struct acpi_platform_list *plat)
+{
+ struct acpi_table_header hdr;
+ int idx = 0;
+
+ if (acpi_disabled)
+ return -ENODEV;
+
+ for (; plat->oem_id[0]; plat++, idx++) {
+ if (ACPI_FAILURE(acpi_get_table_header(plat->table, 0, &hdr)))
+ continue;
+
+ if (strncmp(plat->oem_id, hdr.oem_id, ACPI_OEM_ID_SIZE))
+ continue;
+
+ if (strncmp(plat->oem_table_id, hdr.oem_table_id, ACPI_OEM_TABLE_ID_SIZE))
+ continue;
+
+ if ((plat->pred == all_versions) ||
+ (plat->pred == less_than_or_equal && hdr.oem_revision <= plat->oem_revision) ||
+ (plat->pred == greater_than_or_equal && hdr.oem_revision >= plat->oem_revision) ||
+ (plat->pred == equal && hdr.oem_revision == plat->oem_revision))
+ return idx;
+ }
+
+ return -ENODEV;
+}
+EXPORT_SYMBOL(acpi_match_platform_list);
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 7f48156cbc0c..601e5d372887 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -103,6 +103,12 @@ static int video_detect_force_native(const struct dmi_system_id *d)
return 0;
}
+static int video_detect_force_none(const struct dmi_system_id *d)
+{
+ acpi_backlight_dmi = acpi_backlight_none;
+ return 0;
+}
+
static const struct dmi_system_id video_detect_dmi_table[] = {
/* On Samsung X360, the BIOS will set a flag (VDRV) if generic
* ACPI backlight device is used. This flag will definitively break
@@ -305,6 +311,22 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Dell System XPS L702X"),
},
},
+ {
+ .callback = video_detect_force_native,
+ .ident = "Dell Precision 7510",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Precision 7510"),
+ },
+ },
+ {
+ .callback = video_detect_force_none,
+ .ident = "Dell OptiPlex 9020M",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 9020M"),
+ },
+ },
{ },
};
diff --git a/drivers/acpi/x86/apple.c b/drivers/acpi/x86/apple.c
new file mode 100644
index 000000000000..51b4cf9f25da
--- /dev/null
+++ b/drivers/acpi/x86/apple.c
@@ -0,0 +1,141 @@
+/*
+ * apple.c - Apple ACPI quirks
+ * Copyright (C) 2017 Lukas Wunner <lukas@wunner.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2) as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/acpi.h>
+#include <linux/bitmap.h>
+#include <linux/platform_data/x86/apple.h>
+#include <linux/uuid.h>
+
+/* Apple _DSM device properties GUID */
+static const guid_t apple_prp_guid =
+ GUID_INIT(0xa0b5b7c6, 0x1318, 0x441c,
+ 0xb0, 0xc9, 0xfe, 0x69, 0x5e, 0xaf, 0x94, 0x9b);
+
+/**
+ * acpi_extract_apple_properties - retrieve and convert Apple _DSM properties
+ * @adev: ACPI device for which to retrieve the properties
+ *
+ * Invoke Apple's custom _DSM once to check the protocol version and once more
+ * to retrieve the properties. They are marshalled up in a single package as
+ * alternating key/value elements, unlike _DSD which stores them as a package
+ * of 2-element packages. Convert to _DSD format and make them available under
+ * the primary fwnode.
+ */
+void acpi_extract_apple_properties(struct acpi_device *adev)
+{
+ unsigned int i, j = 0, newsize = 0, numprops, numvalid;
+ union acpi_object *props, *newprops;
+ unsigned long *valid = NULL;
+ void *free_space;
+
+ if (!x86_apple_machine)
+ return;
+
+ props = acpi_evaluate_dsm_typed(adev->handle, &apple_prp_guid, 1, 0,
+ NULL, ACPI_TYPE_BUFFER);
+ if (!props)
+ return;
+
+ if (!props->buffer.length)
+ goto out_free;
+
+ if (props->buffer.pointer[0] != 3) {
+ acpi_handle_info(adev->handle, FW_INFO
+ "unsupported properties version %*ph\n",
+ props->buffer.length, props->buffer.pointer);
+ goto out_free;
+ }
+
+ ACPI_FREE(props);
+ props = acpi_evaluate_dsm_typed(adev->handle, &apple_prp_guid, 1, 1,
+ NULL, ACPI_TYPE_PACKAGE);
+ if (!props)
+ return;
+
+ numprops = props->package.count / 2;
+ if (!numprops)
+ goto out_free;
+
+ valid = kcalloc(BITS_TO_LONGS(numprops), sizeof(long), GFP_KERNEL);
+ if (!valid)
+ goto out_free;
+
+ /* newsize = key length + value length of each tuple */
+ for (i = 0; i < numprops; i++) {
+ union acpi_object *key = &props->package.elements[i * 2];
+ union acpi_object *val = &props->package.elements[i * 2 + 1];
+
+ if ( key->type != ACPI_TYPE_STRING ||
+ (val->type != ACPI_TYPE_INTEGER &&
+ val->type != ACPI_TYPE_BUFFER))
+ continue; /* skip invalid properties */
+
+ __set_bit(i, valid);
+ newsize += key->string.length + 1;
+ if ( val->type == ACPI_TYPE_BUFFER)
+ newsize += val->buffer.length;
+ }
+
+ numvalid = bitmap_weight(valid, numprops);
+ if (numprops > numvalid)
+ acpi_handle_info(adev->handle, FW_INFO
+ "skipped %u properties: wrong type\n",
+ numprops - numvalid);
+ if (numvalid == 0)
+ goto out_free;
+
+ /* newsize += top-level package + 3 objects for each key/value tuple */
+ newsize += (1 + 3 * numvalid) * sizeof(union acpi_object);
+ newprops = ACPI_ALLOCATE_ZEROED(newsize);
+ if (!newprops)
+ goto out_free;
+
+ /* layout: top-level package | packages | key/value tuples | strings */
+ newprops->type = ACPI_TYPE_PACKAGE;
+ newprops->package.count = numvalid;
+ newprops->package.elements = &newprops[1];
+ free_space = &newprops[1 + 3 * numvalid];
+
+ for_each_set_bit(i, valid, numprops) {
+ union acpi_object *key = &props->package.elements[i * 2];
+ union acpi_object *val = &props->package.elements[i * 2 + 1];
+ unsigned int k = 1 + numvalid + j * 2; /* index into newprops */
+ unsigned int v = k + 1;
+
+ newprops[1 + j].type = ACPI_TYPE_PACKAGE;
+ newprops[1 + j].package.count = 2;
+ newprops[1 + j].package.elements = &newprops[k];
+
+ newprops[k].type = ACPI_TYPE_STRING;
+ newprops[k].string.length = key->string.length;
+ newprops[k].string.pointer = free_space;
+ memcpy(free_space, key->string.pointer, key->string.length);
+ free_space += key->string.length + 1;
+
+ newprops[v].type = val->type;
+ if (val->type == ACPI_TYPE_INTEGER) {
+ newprops[v].integer.value = val->integer.value;
+ } else {
+ newprops[v].buffer.length = val->buffer.length;
+ newprops[v].buffer.pointer = free_space;
+ memcpy(free_space, val->buffer.pointer,
+ val->buffer.length);
+ free_space += val->buffer.length;
+ }
+ j++; /* count valid properties */
+ }
+ WARN_ON(free_space != (void *)newprops + newsize);
+
+ adev->data.properties = newprops;
+ adev->data.pointer = newprops;
+
+out_free:
+ ACPI_FREE(props);
+ kfree(valid);
+}
diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c
index bd86b809c848..b4fbb9929482 100644
--- a/drivers/acpi/x86/utils.c
+++ b/drivers/acpi/x86/utils.c
@@ -12,6 +12,7 @@
*/
#include <linux/acpi.h>
+#include <linux/dmi.h>
#include <asm/cpu_device_id.h>
#include <asm/intel-family.h>
#include "../internal.h"
@@ -20,6 +21,10 @@
* Some ACPI devices are hidden (status == 0x0) in recent BIOS-es because
* some recent Windows drivers bind to one device but poke at multiple
* devices at the same time, so the others get hidden.
+ *
+ * Some BIOS-es (temporarily) hide specific APCI devices to work around Windows
+ * driver bugs. We use DMI matching to match known cases of this.
+ *
* We work around this by always reporting ACPI_STA_DEFAULT for these
* devices. Note this MUST only be done for devices where this is safe.
*
@@ -31,14 +36,16 @@
struct always_present_id {
struct acpi_device_id hid[2];
struct x86_cpu_id cpu_ids[2];
+ struct dmi_system_id dmi_ids[2]; /* Optional */
const char *uid;
};
#define ICPU(model) { X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, }
-#define ENTRY(hid, uid, cpu_models) { \
+#define ENTRY(hid, uid, cpu_models, dmi...) { \
{ { hid, }, {} }, \
{ cpu_models, {} }, \
+ { { .matches = dmi }, {} }, \
uid, \
}
@@ -47,13 +54,35 @@ static const struct always_present_id always_present_ids[] = {
* Bay / Cherry Trail PWM directly poked by GPU driver in win10,
* but Linux uses a separate PWM driver, harmless if not used.
*/
- ENTRY("80860F09", "1", ICPU(INTEL_FAM6_ATOM_SILVERMONT1)),
- ENTRY("80862288", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT)),
+ ENTRY("80860F09", "1", ICPU(INTEL_FAM6_ATOM_SILVERMONT1), {}),
+ ENTRY("80862288", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT), {}),
/*
* The INT0002 device is necessary to clear wakeup interrupt sources
* on Cherry Trail devices, without it we get nobody cared IRQ msgs.
*/
- ENTRY("INT0002", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT)),
+ ENTRY("INT0002", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT), {}),
+ /*
+ * On the Dell Venue 11 Pro 7130 the DSDT hides the touchscreen ACPI
+ * device until a certain time after _SB.PCI0.GFX0.LCD.LCD1._ON gets
+ * called has passed *and* _STA has been called at least 3 times since.
+ */
+ ENTRY("SYNA7500", "1", ICPU(INTEL_FAM6_HASWELL_ULT), {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Venue 11 Pro 7130"),
+ }),
+ /*
+ * The GPD win BIOS dated 20170320 has disabled the accelerometer, the
+ * drivers sometimes cause crashes under Windows and this is how the
+ * manufacturer has solved this :| Note that the the DMI data is less
+ * generic then it seems, a board_vendor of "AMI Corporation" is quite
+ * rare and a board_name of "Default String" also is rare.
+ */
+ ENTRY("KIOX000A", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT), {
+ DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+ DMI_MATCH(DMI_BOARD_NAME, "Default string"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
+ DMI_MATCH(DMI_BIOS_DATE, "03/20/2017")
+ }),
};
bool acpi_device_always_present(struct acpi_device *adev)
@@ -76,6 +105,10 @@ bool acpi_device_always_present(struct acpi_device *adev)
if (!x86_match_cpu(always_present_ids[i].cpu_ids))
continue;
+ if (always_present_ids[i].dmi_ids[0].matches[0].slot &&
+ !dmi_check_system(always_present_ids[i].dmi_ids))
+ continue;
+
if (old_status != ACPI_STA_DEFAULT) /* Log only once */
dev_info(&adev->dev,
"Device [%s] is in always present list\n",
diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index a56fa2a1e9aa..e0f74ddc22b7 100644
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -105,6 +105,7 @@ static ssize_t driver_override_store(struct device *_dev,
return count;
}
+static DEVICE_ATTR_RW(driver_override);
#define amba_attr_func(name,fmt,arg...) \
static ssize_t name##_show(struct device *_dev, \
@@ -112,25 +113,23 @@ static ssize_t name##_show(struct device *_dev, \
{ \
struct amba_device *dev = to_amba_device(_dev); \
return sprintf(buf, fmt, arg); \
-}
-
-#define amba_attr(name,fmt,arg...) \
-amba_attr_func(name,fmt,arg) \
-static DEVICE_ATTR(name, S_IRUGO, name##_show, NULL)
+} \
+static DEVICE_ATTR_RO(name)
amba_attr_func(id, "%08x\n", dev->periphid);
-amba_attr(irq0, "%u\n", dev->irq[0]);
-amba_attr(irq1, "%u\n", dev->irq[1]);
+amba_attr_func(irq0, "%u\n", dev->irq[0]);
+amba_attr_func(irq1, "%u\n", dev->irq[1]);
amba_attr_func(resource, "\t%016llx\t%016llx\t%016lx\n",
(unsigned long long)dev->res.start, (unsigned long long)dev->res.end,
dev->res.flags);
-static struct device_attribute amba_dev_attrs[] = {
- __ATTR_RO(id),
- __ATTR_RO(resource),
- __ATTR_RW(driver_override),
- __ATTR_NULL,
+static struct attribute *amba_dev_attrs[] = {
+ &dev_attr_id.attr,
+ &dev_attr_resource.attr,
+ &dev_attr_driver_override.attr,
+ NULL,
};
+ATTRIBUTE_GROUPS(amba_dev);
#ifdef CONFIG_PM
/*
@@ -192,7 +191,7 @@ static const struct dev_pm_ops amba_pm = {
*/
struct bus_type amba_bustype = {
.name = "amba",
- .dev_attrs = amba_dev_attrs,
+ .dev_groups = amba_dev_groups,
.match = amba_match,
.uevent = amba_uevent,
.pm = &amba_pm,
diff --git a/drivers/android/Kconfig b/drivers/android/Kconfig
index 832e885349b1..9801d852bd56 100644
--- a/drivers/android/Kconfig
+++ b/drivers/android/Kconfig
@@ -22,7 +22,7 @@ config ANDROID_BINDER_IPC
config ANDROID_BINDER_DEVICES
string "Android Binder devices"
depends on ANDROID_BINDER_IPC
- default "binder,hwbinder"
+ default "binder,hwbinder,vndbinder"
---help---
Default value for the binder.devices parameter.
@@ -32,7 +32,7 @@ config ANDROID_BINDER_DEVICES
therefore logically separated from the other devices.
config ANDROID_BINDER_IPC_32BIT
- bool
+ bool "Use old (Android 4.4 and earlier) 32-bit binder API"
depends on !64BIT && ANDROID_BINDER_IPC
default y
---help---
@@ -44,6 +44,16 @@ config ANDROID_BINDER_IPC_32BIT
Note that enabling this will break newer Android user-space.
+config ANDROID_BINDER_IPC_SELFTEST
+ bool "Android Binder IPC Driver Selftest"
+ depends on ANDROID_BINDER_IPC
+ ---help---
+ This feature allows binder selftest to run.
+
+ Binder selftest checks the allocation and free of binder buffers
+ exhaustively with combinations of various buffer sizes and
+ alignments.
+
endif # if ANDROID
endmenu
diff --git a/drivers/android/Makefile b/drivers/android/Makefile
index 3b7e4b072c58..a01254c43ee3 100644
--- a/drivers/android/Makefile
+++ b/drivers/android/Makefile
@@ -1,3 +1,4 @@
ccflags-y += -I$(src) # needed for trace events
-obj-$(CONFIG_ANDROID_BINDER_IPC) += binder.o
+obj-$(CONFIG_ANDROID_BINDER_IPC) += binder.o binder_alloc.o
+obj-$(CONFIG_ANDROID_BINDER_IPC_SELFTEST) += binder_alloc_selftest.o
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index aae4d8d4be36..0621a95b8597 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -15,6 +15,40 @@
*
*/
+/*
+ * Locking overview
+ *
+ * There are 3 main spinlocks which must be acquired in the
+ * order shown:
+ *
+ * 1) proc->outer_lock : protects binder_ref
+ * binder_proc_lock() and binder_proc_unlock() are
+ * used to acq/rel.
+ * 2) node->lock : protects most fields of binder_node.
+ * binder_node_lock() and binder_node_unlock() are
+ * used to acq/rel
+ * 3) proc->inner_lock : protects the thread and node lists
+ * (proc->threads, proc->waiting_threads, proc->nodes)
+ * and all todo lists associated with the binder_proc
+ * (proc->todo, thread->todo, proc->delivered_death and
+ * node->async_todo), as well as thread->transaction_stack
+ * binder_inner_proc_lock() and binder_inner_proc_unlock()
+ * are used to acq/rel
+ *
+ * Any lock under procA must never be nested under any lock at the same
+ * level or below on procB.
+ *
+ * Functions that require a lock held on entry indicate which lock
+ * in the suffix of the function name:
+ *
+ * foo_olocked() : requires node->outer_lock
+ * foo_nlocked() : requires node->lock
+ * foo_ilocked() : requires proc->inner_lock
+ * foo_oilocked(): requires proc->outer_lock and proc->inner_lock
+ * foo_nilocked(): requires node->lock and proc->inner_lock
+ * ...
+ */
+
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <asm/cacheflush.h>
@@ -24,7 +58,6 @@
#include <linux/fs.h>
#include <linux/list.h>
#include <linux/miscdevice.h>
-#include <linux/mm.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/nsproxy.h>
@@ -35,30 +68,31 @@
#include <linux/sched/mm.h>
#include <linux/seq_file.h>
#include <linux/uaccess.h>
-#include <linux/vmalloc.h>
-#include <linux/slab.h>
#include <linux/pid_namespace.h>
#include <linux/security.h>
+#include <linux/spinlock.h>
#ifdef CONFIG_ANDROID_BINDER_IPC_32BIT
#define BINDER_IPC_32BIT 1
#endif
#include <uapi/linux/android/binder.h>
+#include "binder_alloc.h"
#include "binder_trace.h"
-static DEFINE_MUTEX(binder_main_lock);
+static HLIST_HEAD(binder_deferred_list);
static DEFINE_MUTEX(binder_deferred_lock);
-static DEFINE_MUTEX(binder_mmap_lock);
static HLIST_HEAD(binder_devices);
static HLIST_HEAD(binder_procs);
-static HLIST_HEAD(binder_deferred_list);
+static DEFINE_MUTEX(binder_procs_lock);
+
static HLIST_HEAD(binder_dead_nodes);
+static DEFINE_SPINLOCK(binder_dead_nodes_lock);
static struct dentry *binder_debugfs_dir_entry_root;
static struct dentry *binder_debugfs_dir_entry_proc;
-static int binder_last_id;
+static atomic_t binder_last_id;
#define BINDER_DEBUG_ENTRY(name) \
static int binder_##name##_open(struct inode *inode, struct file *file) \
@@ -88,8 +122,6 @@ BINDER_DEBUG_ENTRY(proc);
#define FORBIDDEN_MMAP_FLAGS (VM_WRITE)
-#define BINDER_SMALL_BUF_SIZE (PAGE_SIZE * 64)
-
enum {
BINDER_DEBUG_USER_ERROR = 1U << 0,
BINDER_DEBUG_FAILED_TRANSACTION = 1U << 1,
@@ -104,17 +136,13 @@ enum {
BINDER_DEBUG_TRANSACTION_COMPLETE = 1U << 10,
BINDER_DEBUG_FREE_BUFFER = 1U << 11,
BINDER_DEBUG_INTERNAL_REFS = 1U << 12,
- BINDER_DEBUG_BUFFER_ALLOC = 1U << 13,
- BINDER_DEBUG_PRIORITY_CAP = 1U << 14,
- BINDER_DEBUG_BUFFER_ALLOC_ASYNC = 1U << 15,
+ BINDER_DEBUG_PRIORITY_CAP = 1U << 13,
+ BINDER_DEBUG_SPINLOCKS = 1U << 14,
};
static uint32_t binder_debug_mask = BINDER_DEBUG_USER_ERROR |
BINDER_DEBUG_FAILED_TRANSACTION | BINDER_DEBUG_DEAD_TRANSACTION;
module_param_named(debug_mask, binder_debug_mask, uint, S_IWUSR | S_IRUGO);
-static bool binder_debug_no_lock;
-module_param_named(proc_no_lock, binder_debug_no_lock, bool, S_IWUSR | S_IRUGO);
-
static char *binder_devices_param = CONFIG_ANDROID_BINDER_DEVICES;
module_param_named(devices, binder_devices_param, charp, 0444);
@@ -171,26 +199,27 @@ enum binder_stat_types {
};
struct binder_stats {
- int br[_IOC_NR(BR_FAILED_REPLY) + 1];
- int bc[_IOC_NR(BC_REPLY_SG) + 1];
- int obj_created[BINDER_STAT_COUNT];
- int obj_deleted[BINDER_STAT_COUNT];
+ atomic_t br[_IOC_NR(BR_FAILED_REPLY) + 1];
+ atomic_t bc[_IOC_NR(BC_REPLY_SG) + 1];
+ atomic_t obj_created[BINDER_STAT_COUNT];
+ atomic_t obj_deleted[BINDER_STAT_COUNT];
};
static struct binder_stats binder_stats;
static inline void binder_stats_deleted(enum binder_stat_types type)
{
- binder_stats.obj_deleted[type]++;
+ atomic_inc(&binder_stats.obj_deleted[type]);
}
static inline void binder_stats_created(enum binder_stat_types type)
{
- binder_stats.obj_created[type]++;
+ atomic_inc(&binder_stats.obj_created[type]);
}
struct binder_transaction_log_entry {
int debug_id;
+ int debug_id_done;
int call_type;
int from_proc;
int from_thread;
@@ -200,11 +229,14 @@ struct binder_transaction_log_entry {
int to_node;
int data_size;
int offsets_size;
+ int return_error_line;
+ uint32_t return_error;
+ uint32_t return_error_param;
const char *context_name;
};
struct binder_transaction_log {
- int next;
- int full;
+ atomic_t cur;
+ bool full;
struct binder_transaction_log_entry entry[32];
};
static struct binder_transaction_log binder_transaction_log;
@@ -214,19 +246,26 @@ static struct binder_transaction_log_entry *binder_transaction_log_add(
struct binder_transaction_log *log)
{
struct binder_transaction_log_entry *e;
+ unsigned int cur = atomic_inc_return(&log->cur);
- e = &log->entry[log->next];
- memset(e, 0, sizeof(*e));
- log->next++;
- if (log->next == ARRAY_SIZE(log->entry)) {
- log->next = 0;
+ if (cur >= ARRAY_SIZE(log->entry))
log->full = 1;
- }
+ e = &log->entry[cur % ARRAY_SIZE(log->entry)];
+ WRITE_ONCE(e->debug_id_done, 0);
+ /*
+ * write-barrier to synchronize access to e->debug_id_done.
+ * We make sure the initialized 0 value is seen before
+ * memset() other fields are zeroed by memset.
+ */
+ smp_wmb();
+ memset(e, 0, sizeof(*e));
return e;
}
struct binder_context {
struct binder_node *binder_context_mgr_node;
+ struct mutex context_mgr_node_lock;
+
kuid_t binder_context_mgr_uid;
const char *name;
};
@@ -237,11 +276,20 @@ struct binder_device {
struct binder_context context;
};
+/**
+ * struct binder_work - work enqueued on a worklist
+ * @entry: node enqueued on list
+ * @type: type of work to be performed
+ *
+ * There are separate work lists for proc, thread, and node (async).
+ */
struct binder_work {
struct list_head entry;
+
enum {
BINDER_WORK_TRANSACTION = 1,
BINDER_WORK_TRANSACTION_COMPLETE,
+ BINDER_WORK_RETURN_ERROR,
BINDER_WORK_NODE,
BINDER_WORK_DEAD_BINDER,
BINDER_WORK_DEAD_BINDER_AND_CLEAR,
@@ -249,8 +297,72 @@ struct binder_work {
} type;
};
+struct binder_error {
+ struct binder_work work;
+ uint32_t cmd;
+};
+
+/**
+ * struct binder_node - binder node bookkeeping
+ * @debug_id: unique ID for debugging
+ * (invariant after initialized)
+ * @lock: lock for node fields
+ * @work: worklist element for node work
+ * (protected by @proc->inner_lock)
+ * @rb_node: element for proc->nodes tree
+ * (protected by @proc->inner_lock)
+ * @dead_node: element for binder_dead_nodes list
+ * (protected by binder_dead_nodes_lock)
+ * @proc: binder_proc that owns this node
+ * (invariant after initialized)
+ * @refs: list of references on this node
+ * (protected by @lock)
+ * @internal_strong_refs: used to take strong references when
+ * initiating a transaction
+ * (protected by @proc->inner_lock if @proc
+ * and by @lock)
+ * @local_weak_refs: weak user refs from local process
+ * (protected by @proc->inner_lock if @proc
+ * and by @lock)
+ * @local_strong_refs: strong user refs from local process
+ * (protected by @proc->inner_lock if @proc
+ * and by @lock)
+ * @tmp_refs: temporary kernel refs
+ * (protected by @proc->inner_lock while @proc
+ * is valid, and by binder_dead_nodes_lock
+ * if @proc is NULL. During inc/dec and node release
+ * it is also protected by @lock to provide safety
+ * as the node dies and @proc becomes NULL)
+ * @ptr: userspace pointer for node
+ * (invariant, no lock needed)
+ * @cookie: userspace cookie for node
+ * (invariant, no lock needed)
+ * @has_strong_ref: userspace notified of strong ref
+ * (protected by @proc->inner_lock if @proc
+ * and by @lock)
+ * @pending_strong_ref: userspace has acked notification of strong ref
+ * (protected by @proc->inner_lock if @proc
+ * and by @lock)
+ * @has_weak_ref: userspace notified of weak ref
+ * (protected by @proc->inner_lock if @proc
+ * and by @lock)
+ * @pending_weak_ref: userspace has acked notification of weak ref
+ * (protected by @proc->inner_lock if @proc
+ * and by @lock)
+ * @has_async_transaction: async transaction to node in progress
+ * (protected by @lock)
+ * @accept_fds: file descriptor operations supported for node
+ * (invariant after initialized)
+ * @min_priority: minimum scheduling priority
+ * (invariant after initialized)
+ * @async_todo: list of async work items
+ * (protected by @proc->inner_lock)
+ *
+ * Bookkeeping structure for binder nodes.
+ */
struct binder_node {
int debug_id;
+ spinlock_t lock;
struct binder_work work;
union {
struct rb_node rb_node;
@@ -261,88 +373,167 @@ struct binder_node {
int internal_strong_refs;
int local_weak_refs;
int local_strong_refs;
+ int tmp_refs;
binder_uintptr_t ptr;
binder_uintptr_t cookie;
- unsigned has_strong_ref:1;
- unsigned pending_strong_ref:1;
- unsigned has_weak_ref:1;
- unsigned pending_weak_ref:1;
- unsigned has_async_transaction:1;
- unsigned accept_fds:1;
- unsigned min_priority:8;
+ struct {
+ /*
+ * bitfield elements protected by
+ * proc inner_lock
+ */
+ u8 has_strong_ref:1;
+ u8 pending_strong_ref:1;
+ u8 has_weak_ref:1;
+ u8 pending_weak_ref:1;
+ };
+ struct {
+ /*
+ * invariant after initialization
+ */
+ u8 accept_fds:1;
+ u8 min_priority;
+ };
+ bool has_async_transaction;
struct list_head async_todo;
};
struct binder_ref_death {
+ /**
+ * @work: worklist element for death notifications
+ * (protected by inner_lock of the proc that
+ * this ref belongs to)
+ */
struct binder_work work;
binder_uintptr_t cookie;
};
+/**
+ * struct binder_ref_data - binder_ref counts and id
+ * @debug_id: unique ID for the ref
+ * @desc: unique userspace handle for ref
+ * @strong: strong ref count (debugging only if not locked)
+ * @weak: weak ref count (debugging only if not locked)
+ *
+ * Structure to hold ref count and ref id information. Since
+ * the actual ref can only be accessed with a lock, this structure
+ * is used to return information about the ref to callers of
+ * ref inc/dec functions.
+ */
+struct binder_ref_data {
+ int debug_id;
+ uint32_t desc;
+ int strong;
+ int weak;
+};
+
+/**
+ * struct binder_ref - struct to track references on nodes
+ * @data: binder_ref_data containing id, handle, and current refcounts
+ * @rb_node_desc: node for lookup by @data.desc in proc's rb_tree
+ * @rb_node_node: node for lookup by @node in proc's rb_tree
+ * @node_entry: list entry for node->refs list in target node
+ * (protected by @node->lock)
+ * @proc: binder_proc containing ref
+ * @node: binder_node of target node. When cleaning up a
+ * ref for deletion in binder_cleanup_ref, a non-NULL
+ * @node indicates the node must be freed
+ * @death: pointer to death notification (ref_death) if requested
+ * (protected by @node->lock)
+ *
+ * Structure to track references from procA to target node (on procB). This
+ * structure is unsafe to access without holding @proc->outer_lock.
+ */
struct binder_ref {
/* Lookups needed: */
/* node + proc => ref (transaction) */
/* desc + proc => ref (transaction, inc/dec ref) */
/* node => refs + procs (proc exit) */
- int debug_id;
+ struct binder_ref_data data;
struct rb_node rb_node_desc;
struct rb_node rb_node_node;
struct hlist_node node_entry;
struct binder_proc *proc;
struct binder_node *node;
- uint32_t desc;
- int strong;
- int weak;
struct binder_ref_death *death;
};
-struct binder_buffer {
- struct list_head entry; /* free and allocated entries by address */
- struct rb_node rb_node; /* free entry by size or allocated entry */
- /* by address */
- unsigned free:1;
- unsigned allow_user_free:1;
- unsigned async_transaction:1;
- unsigned debug_id:29;
-
- struct binder_transaction *transaction;
-
- struct binder_node *target_node;
- size_t data_size;
- size_t offsets_size;
- size_t extra_buffers_size;
- uint8_t data[0];
-};
-
enum binder_deferred_state {
BINDER_DEFERRED_PUT_FILES = 0x01,
BINDER_DEFERRED_FLUSH = 0x02,
BINDER_DEFERRED_RELEASE = 0x04,
};
+/**
+ * struct binder_proc - binder process bookkeeping
+ * @proc_node: element for binder_procs list
+ * @threads: rbtree of binder_threads in this proc
+ * (protected by @inner_lock)
+ * @nodes: rbtree of binder nodes associated with
+ * this proc ordered by node->ptr
+ * (protected by @inner_lock)
+ * @refs_by_desc: rbtree of refs ordered by ref->desc
+ * (protected by @outer_lock)
+ * @refs_by_node: rbtree of refs ordered by ref->node
+ * (protected by @outer_lock)
+ * @waiting_threads: threads currently waiting for proc work
+ * (protected by @inner_lock)
+ * @pid PID of group_leader of process
+ * (invariant after initialized)
+ * @tsk task_struct for group_leader of process
+ * (invariant after initialized)
+ * @files files_struct for process
+ * (invariant after initialized)
+ * @deferred_work_node: element for binder_deferred_list
+ * (protected by binder_deferred_lock)
+ * @deferred_work: bitmap of deferred work to perform
+ * (protected by binder_deferred_lock)
+ * @is_dead: process is dead and awaiting free
+ * when outstanding transactions are cleaned up
+ * (protected by @inner_lock)
+ * @todo: list of work for this process
+ * (protected by @inner_lock)
+ * @wait: wait queue head to wait for proc work
+ * (invariant after initialized)
+ * @stats: per-process binder statistics
+ * (atomics, no lock needed)
+ * @delivered_death: list of delivered death notification
+ * (protected by @inner_lock)
+ * @max_threads: cap on number of binder threads
+ * (protected by @inner_lock)
+ * @requested_threads: number of binder threads requested but not
+ * yet started. In current implementation, can
+ * only be 0 or 1.
+ * (protected by @inner_lock)
+ * @requested_threads_started: number binder threads started
+ * (protected by @inner_lock)
+ * @tmp_ref: temporary reference to indicate proc is in use
+ * (protected by @inner_lock)
+ * @default_priority: default scheduler priority
+ * (invariant after initialized)
+ * @debugfs_entry: debugfs node
+ * @alloc: binder allocator bookkeeping
+ * @context: binder_context for this proc
+ * (invariant after initialized)
+ * @inner_lock: can nest under outer_lock and/or node lock
+ * @outer_lock: no nesting under innor or node lock
+ * Lock order: 1) outer, 2) node, 3) inner
+ *
+ * Bookkeeping structure for binder processes
+ */
struct binder_proc {
struct hlist_node proc_node;
struct rb_root threads;
struct rb_root nodes;
struct rb_root refs_by_desc;
struct rb_root refs_by_node;
+ struct list_head waiting_threads;
int pid;
- struct vm_area_struct *vma;
- struct mm_struct *vma_vm_mm;
struct task_struct *tsk;
struct files_struct *files;
struct hlist_node deferred_work_node;
int deferred_work;
- void *buffer;
- ptrdiff_t user_buffer_offset;
+ bool is_dead;
- struct list_head buffers;
- struct rb_root free_buffers;
- struct rb_root allocated_buffers;
- size_t free_async_space;
-
- struct page **pages;
- size_t buffer_size;
- uint32_t buffer_free;
struct list_head todo;
wait_queue_head_t wait;
struct binder_stats stats;
@@ -350,10 +541,13 @@ struct binder_proc {
int max_threads;
int requested_threads;
int requested_threads_started;
- int ready_threads;
+ int tmp_ref;
long default_priority;
struct dentry *debugfs_entry;
+ struct binder_alloc alloc;
struct binder_context *context;
+ spinlock_t inner_lock;
+ spinlock_t outer_lock;
};
enum {
@@ -362,22 +556,58 @@ enum {
BINDER_LOOPER_STATE_EXITED = 0x04,
BINDER_LOOPER_STATE_INVALID = 0x08,
BINDER_LOOPER_STATE_WAITING = 0x10,
- BINDER_LOOPER_STATE_NEED_RETURN = 0x20
+ BINDER_LOOPER_STATE_POLL = 0x20,
};
+/**
+ * struct binder_thread - binder thread bookkeeping
+ * @proc: binder process for this thread
+ * (invariant after initialization)
+ * @rb_node: element for proc->threads rbtree
+ * (protected by @proc->inner_lock)
+ * @waiting_thread_node: element for @proc->waiting_threads list
+ * (protected by @proc->inner_lock)
+ * @pid: PID for this thread
+ * (invariant after initialization)
+ * @looper: bitmap of looping state
+ * (only accessed by this thread)
+ * @looper_needs_return: looping thread needs to exit driver
+ * (no lock needed)
+ * @transaction_stack: stack of in-progress transactions for this thread
+ * (protected by @proc->inner_lock)
+ * @todo: list of work to do for this thread
+ * (protected by @proc->inner_lock)
+ * @return_error: transaction errors reported by this thread
+ * (only accessed by this thread)
+ * @reply_error: transaction errors reported by target thread
+ * (protected by @proc->inner_lock)
+ * @wait: wait queue for thread work
+ * @stats: per-thread statistics
+ * (atomics, no lock needed)
+ * @tmp_ref: temporary reference to indicate thread is in use
+ * (atomic since @proc->inner_lock cannot
+ * always be acquired)
+ * @is_dead: thread is dead and awaiting free
+ * when outstanding transactions are cleaned up
+ * (protected by @proc->inner_lock)
+ *
+ * Bookkeeping structure for binder threads.
+ */
struct binder_thread {
struct binder_proc *proc;
struct rb_node rb_node;
+ struct list_head waiting_thread_node;
int pid;
- int looper;
+ int looper; /* only modified by this thread */
+ bool looper_need_return; /* can be written by other thread */
struct binder_transaction *transaction_stack;
struct list_head todo;
- uint32_t return_error; /* Write failed, return error code in read buf */
- uint32_t return_error2; /* Write failed, return error code in read */
- /* buffer. Used when sending a reply to a dead process that */
- /* we are also waiting on */
+ struct binder_error return_error;
+ struct binder_error reply_error;
wait_queue_head_t wait;
struct binder_stats stats;
+ atomic_t tmp_ref;
+ bool is_dead;
};
struct binder_transaction {
@@ -397,10 +627,253 @@ struct binder_transaction {
long priority;
long saved_priority;
kuid_t sender_euid;
+ /**
+ * @lock: protects @from, @to_proc, and @to_thread
+ *
+ * @from, @to_proc, and @to_thread can be set to NULL
+ * during thread teardown
+ */
+ spinlock_t lock;
};
+/**
+ * binder_proc_lock() - Acquire outer lock for given binder_proc
+ * @proc: struct binder_proc to acquire
+ *
+ * Acquires proc->outer_lock. Used to protect binder_ref
+ * structures associated with the given proc.
+ */
+#define binder_proc_lock(proc) _binder_proc_lock(proc, __LINE__)
+static void
+_binder_proc_lock(struct binder_proc *proc, int line)
+{
+ binder_debug(BINDER_DEBUG_SPINLOCKS,
+ "%s: line=%d\n", __func__, line);
+ spin_lock(&proc->outer_lock);
+}
+
+/**
+ * binder_proc_unlock() - Release spinlock for given binder_proc
+ * @proc: struct binder_proc to acquire
+ *
+ * Release lock acquired via binder_proc_lock()
+ */
+#define binder_proc_unlock(_proc) _binder_proc_unlock(_proc, __LINE__)
+static void
+_binder_proc_unlock(struct binder_proc *proc, int line)
+{
+ binder_debug(BINDER_DEBUG_SPINLOCKS,
+ "%s: line=%d\n", __func__, line);
+ spin_unlock(&proc->outer_lock);
+}
+
+/**
+ * binder_inner_proc_lock() - Acquire inner lock for given binder_proc
+ * @proc: struct binder_proc to acquire
+ *
+ * Acquires proc->inner_lock. Used to protect todo lists
+ */
+#define binder_inner_proc_lock(proc) _binder_inner_proc_lock(proc, __LINE__)
+static void
+_binder_inner_proc_lock(struct binder_proc *proc, int line)
+{
+ binder_debug(BINDER_DEBUG_SPINLOCKS,
+ "%s: line=%d\n", __func__, line);
+ spin_lock(&proc->inner_lock);
+}
+
+/**
+ * binder_inner_proc_unlock() - Release inner lock for given binder_proc
+ * @proc: struct binder_proc to acquire
+ *
+ * Release lock acquired via binder_inner_proc_lock()
+ */
+#define binder_inner_proc_unlock(proc) _binder_inner_proc_unlock(proc, __LINE__)
+static void
+_binder_inner_proc_unlock(struct binder_proc *proc, int line)
+{
+ binder_debug(BINDER_DEBUG_SPINLOCKS,
+ "%s: line=%d\n", __func__, line);
+ spin_unlock(&proc->inner_lock);
+}
+
+/**
+ * binder_node_lock() - Acquire spinlock for given binder_node
+ * @node: struct binder_node to acquire
+ *
+ * Acquires node->lock. Used to protect binder_node fields
+ */
+#define binder_node_lock(node) _binder_node_lock(node, __LINE__)
+static void
+_binder_node_lock(struct binder_node *node, int line)
+{
+ binder_debug(BINDER_DEBUG_SPINLOCKS,
+ "%s: line=%d\n", __func__, line);
+ spin_lock(&node->lock);
+}
+
+/**
+ * binder_node_unlock() - Release spinlock for given binder_proc
+ * @node: struct binder_node to acquire
+ *
+ * Release lock acquired via binder_node_lock()
+ */
+#define binder_node_unlock(node) _binder_node_unlock(node, __LINE__)
+static void
+_binder_node_unlock(struct binder_node *node, int line)
+{
+ binder_debug(BINDER_DEBUG_SPINLOCKS,
+ "%s: line=%d\n", __func__, line);
+ spin_unlock(&node->lock);
+}
+
+/**
+ * binder_node_inner_lock() - Acquire node and inner locks
+ * @node: struct binder_node to acquire
+ *
+ * Acquires node->lock. If node->proc also acquires
+ * proc->inner_lock. Used to protect binder_node fields
+ */
+#define binder_node_inner_lock(node) _binder_node_inner_lock(node, __LINE__)
+static void
+_binder_node_inner_lock(struct binder_node *node, int line)
+{
+ binder_debug(BINDER_DEBUG_SPINLOCKS,
+ "%s: line=%d\n", __func__, line);
+ spin_lock(&node->lock);
+ if (node->proc)
+ binder_inner_proc_lock(node->proc);
+}
+
+/**
+ * binder_node_unlock() - Release node and inner locks
+ * @node: struct binder_node to acquire
+ *
+ * Release lock acquired via binder_node_lock()
+ */
+#define binder_node_inner_unlock(node) _binder_node_inner_unlock(node, __LINE__)
+static void
+_binder_node_inner_unlock(struct binder_node *node, int line)
+{
+ struct binder_proc *proc = node->proc;
+
+ binder_debug(BINDER_DEBUG_SPINLOCKS,
+ "%s: line=%d\n", __func__, line);
+ if (proc)
+ binder_inner_proc_unlock(proc);
+ spin_unlock(&node->lock);
+}
+
+static bool binder_worklist_empty_ilocked(struct list_head *list)
+{
+ return list_empty(list);
+}
+
+/**
+ * binder_worklist_empty() - Check if no items on the work list
+ * @proc: binder_proc associated with list
+ * @list: list to check
+ *
+ * Return: true if there are no items on list, else false
+ */
+static bool binder_worklist_empty(struct binder_proc *proc,
+ struct list_head *list)
+{
+ bool ret;
+
+ binder_inner_proc_lock(proc);
+ ret = binder_worklist_empty_ilocked(list);
+ binder_inner_proc_unlock(proc);
+ return ret;
+}
+
+static void
+binder_enqueue_work_ilocked(struct binder_work *work,
+ struct list_head *target_list)
+{
+ BUG_ON(target_list == NULL);
+ BUG_ON(work->entry.next && !list_empty(&work->entry));
+ list_add_tail(&work->entry, target_list);
+}
+
+/**
+ * binder_enqueue_work() - Add an item to the work list
+ * @proc: binder_proc associated with list
+ * @work: struct binder_work to add to list
+ * @target_list: list to add work to
+ *
+ * Adds the work to the specified list. Asserts that work
+ * is not already on a list.
+ */
+static void
+binder_enqueue_work(struct binder_proc *proc,
+ struct binder_work *work,
+ struct list_head *target_list)
+{
+ binder_inner_proc_lock(proc);
+ binder_enqueue_work_ilocked(work, target_list);
+ binder_inner_proc_unlock(proc);
+}
+
+static void
+binder_dequeue_work_ilocked(struct binder_work *work)
+{
+ list_del_init(&work->entry);
+}
+
+/**
+ * binder_dequeue_work() - Removes an item from the work list
+ * @proc: binder_proc associated with list
+ * @work: struct binder_work to remove from list
+ *
+ * Removes the specified work item from whatever list it is on.
+ * Can safely be called if work is not on any list.
+ */
+static void
+binder_dequeue_work(struct binder_proc *proc, struct binder_work *work)
+{
+ binder_inner_proc_lock(proc);
+ binder_dequeue_work_ilocked(work);
+ binder_inner_proc_unlock(proc);
+}
+
+static struct binder_work *binder_dequeue_work_head_ilocked(
+ struct list_head *list)
+{
+ struct binder_work *w;
+
+ w = list_first_entry_or_null(list, struct binder_work, entry);
+ if (w)
+ list_del_init(&w->entry);
+ return w;
+}
+
+/**
+ * binder_dequeue_work_head() - Dequeues the item at head of list
+ * @proc: binder_proc associated with list
+ * @list: list to dequeue head
+ *
+ * Removes the head of the list if there are items on the list
+ *
+ * Return: pointer dequeued binder_work, NULL if list was empty
+ */
+static struct binder_work *binder_dequeue_work_head(
+ struct binder_proc *proc,
+ struct list_head *list)
+{
+ struct binder_work *w;
+
+ binder_inner_proc_lock(proc);
+ w = binder_dequeue_work_head_ilocked(list);
+ binder_inner_proc_unlock(proc);
+ return w;
+}
+
static void
binder_defer_work(struct binder_proc *proc, enum binder_deferred_state defer);
+static void binder_free_thread(struct binder_thread *thread);
+static void binder_free_proc(struct binder_proc *proc);
+static void binder_inc_node_tmpref_ilocked(struct binder_node *node);
static int task_get_unused_fd_flags(struct binder_proc *proc, int flags)
{
@@ -451,462 +924,159 @@ static long task_close_fd(struct binder_proc *proc, unsigned int fd)
return retval;
}
-static inline void binder_lock(const char *tag)
-{
- trace_binder_lock(tag);
- mutex_lock(&binder_main_lock);
- trace_binder_locked(tag);
-}
-
-static inline void binder_unlock(const char *tag)
-{
- trace_binder_unlock(tag);
- mutex_unlock(&binder_main_lock);
-}
-
-static void binder_set_nice(long nice)
-{
- long min_nice;
-
- if (can_nice(current, nice)) {
- set_user_nice(current, nice);
- return;
- }
- min_nice = rlimit_to_nice(current->signal->rlim[RLIMIT_NICE].rlim_cur);
- binder_debug(BINDER_DEBUG_PRIORITY_CAP,
- "%d: nice value %ld not allowed use %ld instead\n",
- current->pid, nice, min_nice);
- set_user_nice(current, min_nice);
- if (min_nice <= MAX_NICE)
- return;
- binder_user_error("%d RLIMIT_NICE not set\n", current->pid);
-}
-
-static size_t binder_buffer_size(struct binder_proc *proc,
- struct binder_buffer *buffer)
+static bool binder_has_work_ilocked(struct binder_thread *thread,
+ bool do_proc_work)
{
- if (list_is_last(&buffer->entry, &proc->buffers))
- return proc->buffer + proc->buffer_size - (void *)buffer->data;
- return (size_t)list_entry(buffer->entry.next,
- struct binder_buffer, entry) - (size_t)buffer->data;
+ return !binder_worklist_empty_ilocked(&thread->todo) ||
+ thread->looper_need_return ||
+ (do_proc_work &&
+ !binder_worklist_empty_ilocked(&thread->proc->todo));
}
-static void binder_insert_free_buffer(struct binder_proc *proc,
- struct binder_buffer *new_buffer)
+static bool binder_has_work(struct binder_thread *thread, bool do_proc_work)
{
- struct rb_node **p = &proc->free_buffers.rb_node;
- struct rb_node *parent = NULL;
- struct binder_buffer *buffer;
- size_t buffer_size;
- size_t new_buffer_size;
-
- BUG_ON(!new_buffer->free);
+ bool has_work;
- new_buffer_size = binder_buffer_size(proc, new_buffer);
-
- binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
- "%d: add free buffer, size %zd, at %p\n",
- proc->pid, new_buffer_size, new_buffer);
-
- while (*p) {
- parent = *p;
- buffer = rb_entry(parent, struct binder_buffer, rb_node);
- BUG_ON(!buffer->free);
+ binder_inner_proc_lock(thread->proc);
+ has_work = binder_has_work_ilocked(thread, do_proc_work);
+ binder_inner_proc_unlock(thread->proc);
- buffer_size = binder_buffer_size(proc, buffer);
-
- if (new_buffer_size < buffer_size)
- p = &parent->rb_left;
- else
- p = &parent->rb_right;
- }
- rb_link_node(&new_buffer->rb_node, parent, p);
- rb_insert_color(&new_buffer->rb_node, &proc->free_buffers);
+ return has_work;
}
-static void binder_insert_allocated_buffer(struct binder_proc *proc,
- struct binder_buffer *new_buffer)
+static bool binder_available_for_proc_work_ilocked(struct binder_thread *thread)
{
- struct rb_node **p = &proc->allocated_buffers.rb_node;
- struct rb_node *parent = NULL;
- struct binder_buffer *buffer;
-
- BUG_ON(new_buffer->free);
-
- while (*p) {
- parent = *p;
- buffer = rb_entry(parent, struct binder_buffer, rb_node);
- BUG_ON(buffer->free);
-
- if (new_buffer < buffer)
- p = &parent->rb_left;
- else if (new_buffer > buffer)
- p = &parent->rb_right;
- else
- BUG();
- }
- rb_link_node(&new_buffer->rb_node, parent, p);
- rb_insert_color(&new_buffer->rb_node, &proc->allocated_buffers);
+ return !thread->transaction_stack &&
+ binder_worklist_empty_ilocked(&thread->todo) &&
+ (thread->looper & (BINDER_LOOPER_STATE_ENTERED |
+ BINDER_LOOPER_STATE_REGISTERED));
}
-static struct binder_buffer *binder_buffer_lookup(struct binder_proc *proc,
- uintptr_t user_ptr)
+static void binder_wakeup_poll_threads_ilocked(struct binder_proc *proc,
+ bool sync)
{
- struct rb_node *n = proc->allocated_buffers.rb_node;
- struct binder_buffer *buffer;
- struct binder_buffer *kern_ptr;
-
- kern_ptr = (struct binder_buffer *)(user_ptr - proc->user_buffer_offset
- - offsetof(struct binder_buffer, data));
-
- while (n) {
- buffer = rb_entry(n, struct binder_buffer, rb_node);
- BUG_ON(buffer->free);
+ struct rb_node *n;
+ struct binder_thread *thread;
- if (kern_ptr < buffer)
- n = n->rb_left;
- else if (kern_ptr > buffer)
- n = n->rb_right;
- else
- return buffer;
+ for (n = rb_first(&proc->threads); n != NULL; n = rb_next(n)) {
+ thread = rb_entry(n, struct binder_thread, rb_node);
+ if (thread->looper & BINDER_LOOPER_STATE_POLL &&
+ binder_available_for_proc_work_ilocked(thread)) {
+ if (sync)
+ wake_up_interruptible_sync(&thread->wait);
+ else
+ wake_up_interruptible(&thread->wait);
+ }
}
- return NULL;
}
-static int binder_update_page_range(struct binder_proc *proc, int allocate,
- void *start, void *end,
- struct vm_area_struct *vma)
+/**
+ * binder_select_thread_ilocked() - selects a thread for doing proc work.
+ * @proc: process to select a thread from
+ *
+ * Note that calling this function moves the thread off the waiting_threads
+ * list, so it can only be woken up by the caller of this function, or a
+ * signal. Therefore, callers *should* always wake up the thread this function
+ * returns.
+ *
+ * Return: If there's a thread currently waiting for process work,
+ * returns that thread. Otherwise returns NULL.
+ */
+static struct binder_thread *
+binder_select_thread_ilocked(struct binder_proc *proc)
{
- void *page_addr;
- unsigned long user_page_addr;
- struct page **page;
- struct mm_struct *mm;
-
- binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
- "%d: %s pages %p-%p\n", proc->pid,
- allocate ? "allocate" : "free", start, end);
-
- if (end <= start)
- return 0;
-
- trace_binder_update_page_range(proc, allocate, start, end);
-
- if (vma)
- mm = NULL;
- else
- mm = get_task_mm(proc->tsk);
-
- if (mm) {
- down_write(&mm->mmap_sem);
- vma = proc->vma;
- if (vma && mm != proc->vma_vm_mm) {
- pr_err("%d: vma mm and task mm mismatch\n",
- proc->pid);
- vma = NULL;
- }
- }
-
- if (allocate == 0)
- goto free_range;
-
- if (vma == NULL) {
- pr_err("%d: binder_alloc_buf failed to map pages in userspace, no vma\n",
- proc->pid);
- goto err_no_vma;
- }
-
- for (page_addr = start; page_addr < end; page_addr += PAGE_SIZE) {
- int ret;
+ struct binder_thread *thread;
- page = &proc->pages[(page_addr - proc->buffer) / PAGE_SIZE];
+ assert_spin_locked(&proc->inner_lock);
+ thread = list_first_entry_or_null(&proc->waiting_threads,
+ struct binder_thread,
+ waiting_thread_node);
- BUG_ON(*page);
- *page = alloc_page(GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO);
- if (*page == NULL) {
- pr_err("%d: binder_alloc_buf failed for page at %p\n",
- proc->pid, page_addr);
- goto err_alloc_page_failed;
- }
- ret = map_kernel_range_noflush((unsigned long)page_addr,
- PAGE_SIZE, PAGE_KERNEL, page);
- flush_cache_vmap((unsigned long)page_addr,
- (unsigned long)page_addr + PAGE_SIZE);
- if (ret != 1) {
- pr_err("%d: binder_alloc_buf failed to map page at %p in kernel\n",
- proc->pid, page_addr);
- goto err_map_kernel_failed;
- }
- user_page_addr =
- (uintptr_t)page_addr + proc->user_buffer_offset;
- ret = vm_insert_page(vma, user_page_addr, page[0]);
- if (ret) {
- pr_err("%d: binder_alloc_buf failed to map page at %lx in userspace\n",
- proc->pid, user_page_addr);
- goto err_vm_insert_page_failed;
- }
- /* vm_insert_page does not seem to increment the refcount */
- }
- if (mm) {
- up_write(&mm->mmap_sem);
- mmput(mm);
- }
- return 0;
+ if (thread)
+ list_del_init(&thread->waiting_thread_node);
-free_range:
- for (page_addr = end - PAGE_SIZE; page_addr >= start;
- page_addr -= PAGE_SIZE) {
- page = &proc->pages[(page_addr - proc->buffer) / PAGE_SIZE];
- if (vma)
- zap_page_range(vma, (uintptr_t)page_addr +
- proc->user_buffer_offset, PAGE_SIZE);
-err_vm_insert_page_failed:
- unmap_kernel_range((unsigned long)page_addr, PAGE_SIZE);
-err_map_kernel_failed:
- __free_page(*page);
- *page = NULL;
-err_alloc_page_failed:
- ;
- }
-err_no_vma:
- if (mm) {
- up_write(&mm->mmap_sem);
- mmput(mm);
- }
- return -ENOMEM;
+ return thread;
}
-static struct binder_buffer *binder_alloc_buf(struct binder_proc *proc,
- size_t data_size,
- size_t offsets_size,
- size_t extra_buffers_size,
- int is_async)
+/**
+ * binder_wakeup_thread_ilocked() - wakes up a thread for doing proc work.
+ * @proc: process to wake up a thread in
+ * @thread: specific thread to wake-up (may be NULL)
+ * @sync: whether to do a synchronous wake-up
+ *
+ * This function wakes up a thread in the @proc process.
+ * The caller may provide a specific thread to wake-up in
+ * the @thread parameter. If @thread is NULL, this function
+ * will wake up threads that have called poll().
+ *
+ * Note that for this function to work as expected, callers
+ * should first call binder_select_thread() to find a thread
+ * to handle the work (if they don't have a thread already),
+ * and pass the result into the @thread parameter.
+ */
+static void binder_wakeup_thread_ilocked(struct binder_proc *proc,
+ struct binder_thread *thread,
+ bool sync)
{
- struct rb_node *n = proc->free_buffers.rb_node;
- struct binder_buffer *buffer;
- size_t buffer_size;
- struct rb_node *best_fit = NULL;
- void *has_page_addr;
- void *end_page_addr;
- size_t size, data_offsets_size;
-
- if (proc->vma == NULL) {
- pr_err("%d: binder_alloc_buf, no vma\n",
- proc->pid);
- return NULL;
- }
-
- data_offsets_size = ALIGN(data_size, sizeof(void *)) +
- ALIGN(offsets_size, sizeof(void *));
+ assert_spin_locked(&proc->inner_lock);
- if (data_offsets_size < data_size || data_offsets_size < offsets_size) {
- binder_user_error("%d: got transaction with invalid size %zd-%zd\n",
- proc->pid, data_size, offsets_size);
- return NULL;
- }
- size = data_offsets_size + ALIGN(extra_buffers_size, sizeof(void *));
- if (size < data_offsets_size || size < extra_buffers_size) {
- binder_user_error("%d: got transaction with invalid extra_buffers_size %zd\n",
- proc->pid, extra_buffers_size);
- return NULL;
- }
- if (is_async &&
- proc->free_async_space < size + sizeof(struct binder_buffer)) {
- binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
- "%d: binder_alloc_buf size %zd failed, no async space left\n",
- proc->pid, size);
- return NULL;
- }
-
- while (n) {
- buffer = rb_entry(n, struct binder_buffer, rb_node);
- BUG_ON(!buffer->free);
- buffer_size = binder_buffer_size(proc, buffer);
-
- if (size < buffer_size) {
- best_fit = n;
- n = n->rb_left;
- } else if (size > buffer_size)
- n = n->rb_right;
- else {
- best_fit = n;
- break;
- }
- }
- if (best_fit == NULL) {
- pr_err("%d: binder_alloc_buf size %zd failed, no address space\n",
- proc->pid, size);
- return NULL;
- }
- if (n == NULL) {
- buffer = rb_entry(best_fit, struct binder_buffer, rb_node);
- buffer_size = binder_buffer_size(proc, buffer);
- }
-
- binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
- "%d: binder_alloc_buf size %zd got buffer %p size %zd\n",
- proc->pid, size, buffer, buffer_size);
-
- has_page_addr =
- (void *)(((uintptr_t)buffer->data + buffer_size) & PAGE_MASK);
- if (n == NULL) {
- if (size + sizeof(struct binder_buffer) + 4 >= buffer_size)
- buffer_size = size; /* no room for other buffers */
+ if (thread) {
+ if (sync)
+ wake_up_interruptible_sync(&thread->wait);
else
- buffer_size = size + sizeof(struct binder_buffer);
- }
- end_page_addr =
- (void *)PAGE_ALIGN((uintptr_t)buffer->data + buffer_size);
- if (end_page_addr > has_page_addr)
- end_page_addr = has_page_addr;
- if (binder_update_page_range(proc, 1,
- (void *)PAGE_ALIGN((uintptr_t)buffer->data), end_page_addr, NULL))
- return NULL;
-
- rb_erase(best_fit, &proc->free_buffers);
- buffer->free = 0;
- binder_insert_allocated_buffer(proc, buffer);
- if (buffer_size != size) {
- struct binder_buffer *new_buffer = (void *)buffer->data + size;
-
- list_add(&new_buffer->entry, &buffer->entry);
- new_buffer->free = 1;
- binder_insert_free_buffer(proc, new_buffer);
- }
- binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
- "%d: binder_alloc_buf size %zd got %p\n",
- proc->pid, size, buffer);
- buffer->data_size = data_size;
- buffer->offsets_size = offsets_size;
- buffer->extra_buffers_size = extra_buffers_size;
- buffer->async_transaction = is_async;
- if (is_async) {
- proc->free_async_space -= size + sizeof(struct binder_buffer);
- binder_debug(BINDER_DEBUG_BUFFER_ALLOC_ASYNC,
- "%d: binder_alloc_buf size %zd async free %zd\n",
- proc->pid, size, proc->free_async_space);
+ wake_up_interruptible(&thread->wait);
+ return;
}
- return buffer;
-}
-
-static void *buffer_start_page(struct binder_buffer *buffer)
-{
- return (void *)((uintptr_t)buffer & PAGE_MASK);
-}
-
-static void *buffer_end_page(struct binder_buffer *buffer)
-{
- return (void *)(((uintptr_t)(buffer + 1) - 1) & PAGE_MASK);
+ /* Didn't find a thread waiting for proc work; this can happen
+ * in two scenarios:
+ * 1. All threads are busy handling transactions
+ * In that case, one of those threads should call back into
+ * the kernel driver soon and pick up this work.
+ * 2. Threads are using the (e)poll interface, in which case
+ * they may be blocked on the waitqueue without having been
+ * added to waiting_threads. For this case, we just iterate
+ * over all threads not handling transaction work, and
+ * wake them all up. We wake all because we don't know whether
+ * a thread that called into (e)poll is handling non-binder
+ * work currently.
+ */
+ binder_wakeup_poll_threads_ilocked(proc, sync);
}
-static void binder_delete_free_buffer(struct binder_proc *proc,
- struct binder_buffer *buffer)
+static void binder_wakeup_proc_ilocked(struct binder_proc *proc)
{
- struct binder_buffer *prev, *next = NULL;
- int free_page_end = 1;
- int free_page_start = 1;
-
- BUG_ON(proc->buffers.next == &buffer->entry);
- prev = list_entry(buffer->entry.prev, struct binder_buffer, entry);
- BUG_ON(!prev->free);
- if (buffer_end_page(prev) == buffer_start_page(buffer)) {
- free_page_start = 0;
- if (buffer_end_page(prev) == buffer_end_page(buffer))
- free_page_end = 0;
- binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
- "%d: merge free, buffer %p share page with %p\n",
- proc->pid, buffer, prev);
- }
+ struct binder_thread *thread = binder_select_thread_ilocked(proc);
- if (!list_is_last(&buffer->entry, &proc->buffers)) {
- next = list_entry(buffer->entry.next,
- struct binder_buffer, entry);
- if (buffer_start_page(next) == buffer_end_page(buffer)) {
- free_page_end = 0;
- if (buffer_start_page(next) ==
- buffer_start_page(buffer))
- free_page_start = 0;
- binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
- "%d: merge free, buffer %p share page with %p\n",
- proc->pid, buffer, prev);
- }
- }
- list_del(&buffer->entry);
- if (free_page_start || free_page_end) {
- binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
- "%d: merge free, buffer %p do not share page%s%s with %p or %p\n",
- proc->pid, buffer, free_page_start ? "" : " end",
- free_page_end ? "" : " start", prev, next);
- binder_update_page_range(proc, 0, free_page_start ?
- buffer_start_page(buffer) : buffer_end_page(buffer),
- (free_page_end ? buffer_end_page(buffer) :
- buffer_start_page(buffer)) + PAGE_SIZE, NULL);
- }
+ binder_wakeup_thread_ilocked(proc, thread, /* sync = */false);
}
-static void binder_free_buf(struct binder_proc *proc,
- struct binder_buffer *buffer)
+static void binder_set_nice(long nice)
{
- size_t size, buffer_size;
-
- buffer_size = binder_buffer_size(proc, buffer);
-
- size = ALIGN(buffer->data_size, sizeof(void *)) +
- ALIGN(buffer->offsets_size, sizeof(void *)) +
- ALIGN(buffer->extra_buffers_size, sizeof(void *));
-
- binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
- "%d: binder_free_buf %p size %zd buffer_size %zd\n",
- proc->pid, buffer, size, buffer_size);
-
- BUG_ON(buffer->free);
- BUG_ON(size > buffer_size);
- BUG_ON(buffer->transaction != NULL);
- BUG_ON((void *)buffer < proc->buffer);
- BUG_ON((void *)buffer > proc->buffer + proc->buffer_size);
-
- if (buffer->async_transaction) {
- proc->free_async_space += size + sizeof(struct binder_buffer);
-
- binder_debug(BINDER_DEBUG_BUFFER_ALLOC_ASYNC,
- "%d: binder_free_buf size %zd async free %zd\n",
- proc->pid, size, proc->free_async_space);
- }
+ long min_nice;
- binder_update_page_range(proc, 0,
- (void *)PAGE_ALIGN((uintptr_t)buffer->data),
- (void *)(((uintptr_t)buffer->data + buffer_size) & PAGE_MASK),
- NULL);
- rb_erase(&buffer->rb_node, &proc->allocated_buffers);
- buffer->free = 1;
- if (!list_is_last(&buffer->entry, &proc->buffers)) {
- struct binder_buffer *next = list_entry(buffer->entry.next,
- struct binder_buffer, entry);
-
- if (next->free) {
- rb_erase(&next->rb_node, &proc->free_buffers);
- binder_delete_free_buffer(proc, next);
- }
- }
- if (proc->buffers.next != &buffer->entry) {
- struct binder_buffer *prev = list_entry(buffer->entry.prev,
- struct binder_buffer, entry);
-
- if (prev->free) {
- binder_delete_free_buffer(proc, buffer);
- rb_erase(&prev->rb_node, &proc->free_buffers);
- buffer = prev;
- }
+ if (can_nice(current, nice)) {
+ set_user_nice(current, nice);
+ return;
}
- binder_insert_free_buffer(proc, buffer);
+ min_nice = rlimit_to_nice(rlimit(RLIMIT_NICE));
+ binder_debug(BINDER_DEBUG_PRIORITY_CAP,
+ "%d: nice value %ld not allowed use %ld instead\n",
+ current->pid, nice, min_nice);
+ set_user_nice(current, min_nice);
+ if (min_nice <= MAX_NICE)
+ return;
+ binder_user_error("%d RLIMIT_NICE not set\n", current->pid);
}
-static struct binder_node *binder_get_node(struct binder_proc *proc,
- binder_uintptr_t ptr)
+static struct binder_node *binder_get_node_ilocked(struct binder_proc *proc,
+ binder_uintptr_t ptr)
{
struct rb_node *n = proc->nodes.rb_node;
struct binder_node *node;
+ assert_spin_locked(&proc->inner_lock);
+
while (n) {
node = rb_entry(n, struct binder_node, rb_node);
@@ -914,21 +1084,46 @@ static struct binder_node *binder_get_node(struct binder_proc *proc,
n = n->rb_left;
else if (ptr > node->ptr)
n = n->rb_right;
- else
+ else {
+ /*
+ * take an implicit weak reference
+ * to ensure node stays alive until
+ * call to binder_put_node()
+ */
+ binder_inc_node_tmpref_ilocked(node);
return node;
+ }
}
return NULL;
}
-static struct binder_node *binder_new_node(struct binder_proc *proc,
- binder_uintptr_t ptr,
- binder_uintptr_t cookie)
+static struct binder_node *binder_get_node(struct binder_proc *proc,
+ binder_uintptr_t ptr)
+{
+ struct binder_node *node;
+
+ binder_inner_proc_lock(proc);
+ node = binder_get_node_ilocked(proc, ptr);
+ binder_inner_proc_unlock(proc);
+ return node;
+}
+
+static struct binder_node *binder_init_node_ilocked(
+ struct binder_proc *proc,
+ struct binder_node *new_node,
+ struct flat_binder_object *fp)
{
struct rb_node **p = &proc->nodes.rb_node;
struct rb_node *parent = NULL;
struct binder_node *node;
+ binder_uintptr_t ptr = fp ? fp->binder : 0;
+ binder_uintptr_t cookie = fp ? fp->cookie : 0;
+ __u32 flags = fp ? fp->flags : 0;
+
+ assert_spin_locked(&proc->inner_lock);
while (*p) {
+
parent = *p;
node = rb_entry(parent, struct binder_node, rb_node);
@@ -936,33 +1131,74 @@ static struct binder_node *binder_new_node(struct binder_proc *proc,
p = &(*p)->rb_left;
else if (ptr > node->ptr)
p = &(*p)->rb_right;
- else
- return NULL;
+ else {
+ /*
+ * A matching node is already in
+ * the rb tree. Abandon the init
+ * and return it.
+ */
+ binder_inc_node_tmpref_ilocked(node);
+ return node;
+ }
}
-
- node = kzalloc(sizeof(*node), GFP_KERNEL);
- if (node == NULL)
- return NULL;
+ node = new_node;
binder_stats_created(BINDER_STAT_NODE);
+ node->tmp_refs++;
rb_link_node(&node->rb_node, parent, p);
rb_insert_color(&node->rb_node, &proc->nodes);
- node->debug_id = ++binder_last_id;
+ node->debug_id = atomic_inc_return(&binder_last_id);
node->proc = proc;
node->ptr = ptr;
node->cookie = cookie;
node->work.type = BINDER_WORK_NODE;
+ node->min_priority = flags & FLAT_BINDER_FLAG_PRIORITY_MASK;
+ node->accept_fds = !!(flags & FLAT_BINDER_FLAG_ACCEPTS_FDS);
+ spin_lock_init(&node->lock);
INIT_LIST_HEAD(&node->work.entry);
INIT_LIST_HEAD(&node->async_todo);
binder_debug(BINDER_DEBUG_INTERNAL_REFS,
"%d:%d node %d u%016llx c%016llx created\n",
proc->pid, current->pid, node->debug_id,
(u64)node->ptr, (u64)node->cookie);
+
return node;
}
-static int binder_inc_node(struct binder_node *node, int strong, int internal,
- struct list_head *target_list)
+static struct binder_node *binder_new_node(struct binder_proc *proc,
+ struct flat_binder_object *fp)
+{
+ struct binder_node *node;
+ struct binder_node *new_node = kzalloc(sizeof(*node), GFP_KERNEL);
+
+ if (!new_node)
+ return NULL;
+ binder_inner_proc_lock(proc);
+ node = binder_init_node_ilocked(proc, new_node, fp);
+ binder_inner_proc_unlock(proc);
+ if (node != new_node)
+ /*
+ * The node was already added by another thread
+ */
+ kfree(new_node);
+
+ return node;
+}
+
+static void binder_free_node(struct binder_node *node)
+{
+ kfree(node);
+ binder_stats_deleted(BINDER_STAT_NODE);
+}
+
+static int binder_inc_node_nilocked(struct binder_node *node, int strong,
+ int internal,
+ struct list_head *target_list)
{
+ struct binder_proc *proc = node->proc;
+
+ assert_spin_locked(&node->lock);
+ if (proc)
+ assert_spin_locked(&proc->inner_lock);
if (strong) {
if (internal) {
if (target_list == NULL &&
@@ -978,8 +1214,8 @@ static int binder_inc_node(struct binder_node *node, int strong, int internal,
} else
node->local_strong_refs++;
if (!node->has_strong_ref && target_list) {
- list_del_init(&node->work.entry);
- list_add_tail(&node->work.entry, target_list);
+ binder_dequeue_work_ilocked(&node->work);
+ binder_enqueue_work_ilocked(&node->work, target_list);
}
} else {
if (!internal)
@@ -990,58 +1226,169 @@ static int binder_inc_node(struct binder_node *node, int strong, int internal,
node->debug_id);
return -EINVAL;
}
- list_add_tail(&node->work.entry, target_list);
+ binder_enqueue_work_ilocked(&node->work, target_list);
}
}
return 0;
}
-static int binder_dec_node(struct binder_node *node, int strong, int internal)
+static int binder_inc_node(struct binder_node *node, int strong, int internal,
+ struct list_head *target_list)
+{
+ int ret;
+
+ binder_node_inner_lock(node);
+ ret = binder_inc_node_nilocked(node, strong, internal, target_list);
+ binder_node_inner_unlock(node);
+
+ return ret;
+}
+
+static bool binder_dec_node_nilocked(struct binder_node *node,
+ int strong, int internal)
{
+ struct binder_proc *proc = node->proc;
+
+ assert_spin_locked(&node->lock);
+ if (proc)
+ assert_spin_locked(&proc->inner_lock);
if (strong) {
if (internal)
node->internal_strong_refs--;
else
node->local_strong_refs--;
if (node->local_strong_refs || node->internal_strong_refs)
- return 0;
+ return false;
} else {
if (!internal)
node->local_weak_refs--;
- if (node->local_weak_refs || !hlist_empty(&node->refs))
- return 0;
+ if (node->local_weak_refs || node->tmp_refs ||
+ !hlist_empty(&node->refs))
+ return false;
}
- if (node->proc && (node->has_strong_ref || node->has_weak_ref)) {
+
+ if (proc && (node->has_strong_ref || node->has_weak_ref)) {
if (list_empty(&node->work.entry)) {
- list_add_tail(&node->work.entry, &node->proc->todo);
- wake_up_interruptible(&node->proc->wait);
+ binder_enqueue_work_ilocked(&node->work, &proc->todo);
+ binder_wakeup_proc_ilocked(proc);
}
} else {
if (hlist_empty(&node->refs) && !node->local_strong_refs &&
- !node->local_weak_refs) {
- list_del_init(&node->work.entry);
- if (node->proc) {
- rb_erase(&node->rb_node, &node->proc->nodes);
+ !node->local_weak_refs && !node->tmp_refs) {
+ if (proc) {
+ binder_dequeue_work_ilocked(&node->work);
+ rb_erase(&node->rb_node, &proc->nodes);
binder_debug(BINDER_DEBUG_INTERNAL_REFS,
"refless node %d deleted\n",
node->debug_id);
} else {
+ BUG_ON(!list_empty(&node->work.entry));
+ spin_lock(&binder_dead_nodes_lock);
+ /*
+ * tmp_refs could have changed so
+ * check it again
+ */
+ if (node->tmp_refs) {
+ spin_unlock(&binder_dead_nodes_lock);
+ return false;
+ }
hlist_del(&node->dead_node);
+ spin_unlock(&binder_dead_nodes_lock);
binder_debug(BINDER_DEBUG_INTERNAL_REFS,
"dead node %d deleted\n",
node->debug_id);
}
- kfree(node);
- binder_stats_deleted(BINDER_STAT_NODE);
+ return true;
}
}
+ return false;
+}
- return 0;
+static void binder_dec_node(struct binder_node *node, int strong, int internal)
+{
+ bool free_node;
+
+ binder_node_inner_lock(node);
+ free_node = binder_dec_node_nilocked(node, strong, internal);
+ binder_node_inner_unlock(node);
+ if (free_node)
+ binder_free_node(node);
}
+static void binder_inc_node_tmpref_ilocked(struct binder_node *node)
+{
+ /*
+ * No call to binder_inc_node() is needed since we
+ * don't need to inform userspace of any changes to
+ * tmp_refs
+ */
+ node->tmp_refs++;
+}
-static struct binder_ref *binder_get_ref(struct binder_proc *proc,
- u32 desc, bool need_strong_ref)
+/**
+ * binder_inc_node_tmpref() - take a temporary reference on node
+ * @node: node to reference
+ *
+ * Take reference on node to prevent the node from being freed
+ * while referenced only by a local variable. The inner lock is
+ * needed to serialize with the node work on the queue (which
+ * isn't needed after the node is dead). If the node is dead
+ * (node->proc is NULL), use binder_dead_nodes_lock to protect
+ * node->tmp_refs against dead-node-only cases where the node
+ * lock cannot be acquired (eg traversing the dead node list to
+ * print nodes)
+ */
+static void binder_inc_node_tmpref(struct binder_node *node)
+{
+ binder_node_lock(node);
+ if (node->proc)
+ binder_inner_proc_lock(node->proc);
+ else
+ spin_lock(&binder_dead_nodes_lock);
+ binder_inc_node_tmpref_ilocked(node);
+ if (node->proc)
+ binder_inner_proc_unlock(node->proc);
+ else
+ spin_unlock(&binder_dead_nodes_lock);
+ binder_node_unlock(node);
+}
+
+/**
+ * binder_dec_node_tmpref() - remove a temporary reference on node
+ * @node: node to reference
+ *
+ * Release temporary reference on node taken via binder_inc_node_tmpref()
+ */
+static void binder_dec_node_tmpref(struct binder_node *node)
+{
+ bool free_node;
+
+ binder_node_inner_lock(node);
+ if (!node->proc)
+ spin_lock(&binder_dead_nodes_lock);
+ node->tmp_refs--;
+ BUG_ON(node->tmp_refs < 0);
+ if (!node->proc)
+ spin_unlock(&binder_dead_nodes_lock);
+ /*
+ * Call binder_dec_node() to check if all refcounts are 0
+ * and cleanup is needed. Calling with strong=0 and internal=1
+ * causes no actual reference to be released in binder_dec_node().
+ * If that changes, a change is needed here too.
+ */
+ free_node = binder_dec_node_nilocked(node, 0, 1);
+ binder_node_inner_unlock(node);
+ if (free_node)
+ binder_free_node(node);
+}
+
+static void binder_put_node(struct binder_node *node)
+{
+ binder_dec_node_tmpref(node);
+}
+
+static struct binder_ref *binder_get_ref_olocked(struct binder_proc *proc,
+ u32 desc, bool need_strong_ref)
{
struct rb_node *n = proc->refs_by_desc.rb_node;
struct binder_ref *ref;
@@ -1049,11 +1396,11 @@ static struct binder_ref *binder_get_ref(struct binder_proc *proc,
while (n) {
ref = rb_entry(n, struct binder_ref, rb_node_desc);
- if (desc < ref->desc) {
+ if (desc < ref->data.desc) {
n = n->rb_left;
- } else if (desc > ref->desc) {
+ } else if (desc > ref->data.desc) {
n = n->rb_right;
- } else if (need_strong_ref && !ref->strong) {
+ } else if (need_strong_ref && !ref->data.strong) {
binder_user_error("tried to use weak ref as strong ref\n");
return NULL;
} else {
@@ -1063,14 +1410,34 @@ static struct binder_ref *binder_get_ref(struct binder_proc *proc,
return NULL;
}
-static struct binder_ref *binder_get_ref_for_node(struct binder_proc *proc,
- struct binder_node *node)
+/**
+ * binder_get_ref_for_node_olocked() - get the ref associated with given node
+ * @proc: binder_proc that owns the ref
+ * @node: binder_node of target
+ * @new_ref: newly allocated binder_ref to be initialized or %NULL
+ *
+ * Look up the ref for the given node and return it if it exists
+ *
+ * If it doesn't exist and the caller provides a newly allocated
+ * ref, initialize the fields of the newly allocated ref and insert
+ * into the given proc rb_trees and node refs list.
+ *
+ * Return: the ref for node. It is possible that another thread
+ * allocated/initialized the ref first in which case the
+ * returned ref would be different than the passed-in
+ * new_ref. new_ref must be kfree'd by the caller in
+ * this case.
+ */
+static struct binder_ref *binder_get_ref_for_node_olocked(
+ struct binder_proc *proc,
+ struct binder_node *node,
+ struct binder_ref *new_ref)
{
- struct rb_node *n;
+ struct binder_context *context = proc->context;
struct rb_node **p = &proc->refs_by_node.rb_node;
struct rb_node *parent = NULL;
- struct binder_ref *ref, *new_ref;
- struct binder_context *context = proc->context;
+ struct binder_ref *ref;
+ struct rb_node *n;
while (*p) {
parent = *p;
@@ -1083,22 +1450,22 @@ static struct binder_ref *binder_get_ref_for_node(struct binder_proc *proc,
else
return ref;
}
- new_ref = kzalloc(sizeof(*ref), GFP_KERNEL);
- if (new_ref == NULL)
+ if (!new_ref)
return NULL;
+
binder_stats_created(BINDER_STAT_REF);
- new_ref->debug_id = ++binder_last_id;
+ new_ref->data.debug_id = atomic_inc_return(&binder_last_id);
new_ref->proc = proc;
new_ref->node = node;
rb_link_node(&new_ref->rb_node_node, parent, p);
rb_insert_color(&new_ref->rb_node_node, &proc->refs_by_node);
- new_ref->desc = (node == context->binder_context_mgr_node) ? 0 : 1;
+ new_ref->data.desc = (node == context->binder_context_mgr_node) ? 0 : 1;
for (n = rb_first(&proc->refs_by_desc); n != NULL; n = rb_next(n)) {
ref = rb_entry(n, struct binder_ref, rb_node_desc);
- if (ref->desc > new_ref->desc)
+ if (ref->data.desc > new_ref->data.desc)
break;
- new_ref->desc = ref->desc + 1;
+ new_ref->data.desc = ref->data.desc + 1;
}
p = &proc->refs_by_desc.rb_node;
@@ -1106,121 +1473,423 @@ static struct binder_ref *binder_get_ref_for_node(struct binder_proc *proc,
parent = *p;
ref = rb_entry(parent, struct binder_ref, rb_node_desc);
- if (new_ref->desc < ref->desc)
+ if (new_ref->data.desc < ref->data.desc)
p = &(*p)->rb_left;
- else if (new_ref->desc > ref->desc)
+ else if (new_ref->data.desc > ref->data.desc)
p = &(*p)->rb_right;
else
BUG();
}
rb_link_node(&new_ref->rb_node_desc, parent, p);
rb_insert_color(&new_ref->rb_node_desc, &proc->refs_by_desc);
- if (node) {
- hlist_add_head(&new_ref->node_entry, &node->refs);
- binder_debug(BINDER_DEBUG_INTERNAL_REFS,
- "%d new ref %d desc %d for node %d\n",
- proc->pid, new_ref->debug_id, new_ref->desc,
- node->debug_id);
- } else {
- binder_debug(BINDER_DEBUG_INTERNAL_REFS,
- "%d new ref %d desc %d for dead node\n",
- proc->pid, new_ref->debug_id, new_ref->desc);
- }
+ binder_node_lock(node);
+ hlist_add_head(&new_ref->node_entry, &node->refs);
+
+ binder_debug(BINDER_DEBUG_INTERNAL_REFS,
+ "%d new ref %d desc %d for node %d\n",
+ proc->pid, new_ref->data.debug_id, new_ref->data.desc,
+ node->debug_id);
+ binder_node_unlock(node);
return new_ref;
}
-static void binder_delete_ref(struct binder_ref *ref)
+static void binder_cleanup_ref_olocked(struct binder_ref *ref)
{
+ bool delete_node = false;
+
binder_debug(BINDER_DEBUG_INTERNAL_REFS,
"%d delete ref %d desc %d for node %d\n",
- ref->proc->pid, ref->debug_id, ref->desc,
+ ref->proc->pid, ref->data.debug_id, ref->data.desc,
ref->node->debug_id);
rb_erase(&ref->rb_node_desc, &ref->proc->refs_by_desc);
rb_erase(&ref->rb_node_node, &ref->proc->refs_by_node);
- if (ref->strong)
- binder_dec_node(ref->node, 1, 1);
+
+ binder_node_inner_lock(ref->node);
+ if (ref->data.strong)
+ binder_dec_node_nilocked(ref->node, 1, 1);
+
hlist_del(&ref->node_entry);
- binder_dec_node(ref->node, 0, 1);
+ delete_node = binder_dec_node_nilocked(ref->node, 0, 1);
+ binder_node_inner_unlock(ref->node);
+ /*
+ * Clear ref->node unless we want the caller to free the node
+ */
+ if (!delete_node) {
+ /*
+ * The caller uses ref->node to determine
+ * whether the node needs to be freed. Clear
+ * it since the node is still alive.
+ */
+ ref->node = NULL;
+ }
+
if (ref->death) {
binder_debug(BINDER_DEBUG_DEAD_BINDER,
"%d delete ref %d desc %d has death notification\n",
- ref->proc->pid, ref->debug_id, ref->desc);
- list_del(&ref->death->work.entry);
- kfree(ref->death);
+ ref->proc->pid, ref->data.debug_id,
+ ref->data.desc);
+ binder_dequeue_work(ref->proc, &ref->death->work);
binder_stats_deleted(BINDER_STAT_DEATH);
}
- kfree(ref);
binder_stats_deleted(BINDER_STAT_REF);
}
-static int binder_inc_ref(struct binder_ref *ref, int strong,
- struct list_head *target_list)
+/**
+ * binder_inc_ref_olocked() - increment the ref for given handle
+ * @ref: ref to be incremented
+ * @strong: if true, strong increment, else weak
+ * @target_list: list to queue node work on
+ *
+ * Increment the ref. @ref->proc->outer_lock must be held on entry
+ *
+ * Return: 0, if successful, else errno
+ */
+static int binder_inc_ref_olocked(struct binder_ref *ref, int strong,
+ struct list_head *target_list)
{
int ret;
if (strong) {
- if (ref->strong == 0) {
+ if (ref->data.strong == 0) {
ret = binder_inc_node(ref->node, 1, 1, target_list);
if (ret)
return ret;
}
- ref->strong++;
+ ref->data.strong++;
} else {
- if (ref->weak == 0) {
+ if (ref->data.weak == 0) {
ret = binder_inc_node(ref->node, 0, 1, target_list);
if (ret)
return ret;
}
- ref->weak++;
+ ref->data.weak++;
}
return 0;
}
-
-static int binder_dec_ref(struct binder_ref *ref, int strong)
+/**
+ * binder_dec_ref() - dec the ref for given handle
+ * @ref: ref to be decremented
+ * @strong: if true, strong decrement, else weak
+ *
+ * Decrement the ref.
+ *
+ * Return: true if ref is cleaned up and ready to be freed
+ */
+static bool binder_dec_ref_olocked(struct binder_ref *ref, int strong)
{
if (strong) {
- if (ref->strong == 0) {
+ if (ref->data.strong == 0) {
binder_user_error("%d invalid dec strong, ref %d desc %d s %d w %d\n",
- ref->proc->pid, ref->debug_id,
- ref->desc, ref->strong, ref->weak);
- return -EINVAL;
- }
- ref->strong--;
- if (ref->strong == 0) {
- int ret;
-
- ret = binder_dec_node(ref->node, strong, 1);
- if (ret)
- return ret;
+ ref->proc->pid, ref->data.debug_id,
+ ref->data.desc, ref->data.strong,
+ ref->data.weak);
+ return false;
}
+ ref->data.strong--;
+ if (ref->data.strong == 0)
+ binder_dec_node(ref->node, strong, 1);
} else {
- if (ref->weak == 0) {
+ if (ref->data.weak == 0) {
binder_user_error("%d invalid dec weak, ref %d desc %d s %d w %d\n",
- ref->proc->pid, ref->debug_id,
- ref->desc, ref->strong, ref->weak);
- return -EINVAL;
+ ref->proc->pid, ref->data.debug_id,
+ ref->data.desc, ref->data.strong,
+ ref->data.weak);
+ return false;
}
- ref->weak--;
+ ref->data.weak--;
}
- if (ref->strong == 0 && ref->weak == 0)
- binder_delete_ref(ref);
- return 0;
+ if (ref->data.strong == 0 && ref->data.weak == 0) {
+ binder_cleanup_ref_olocked(ref);
+ return true;
+ }
+ return false;
}
-static void binder_pop_transaction(struct binder_thread *target_thread,
- struct binder_transaction *t)
+/**
+ * binder_get_node_from_ref() - get the node from the given proc/desc
+ * @proc: proc containing the ref
+ * @desc: the handle associated with the ref
+ * @need_strong_ref: if true, only return node if ref is strong
+ * @rdata: the id/refcount data for the ref
+ *
+ * Given a proc and ref handle, return the associated binder_node
+ *
+ * Return: a binder_node or NULL if not found or not strong when strong required
+ */
+static struct binder_node *binder_get_node_from_ref(
+ struct binder_proc *proc,
+ u32 desc, bool need_strong_ref,
+ struct binder_ref_data *rdata)
{
- if (target_thread) {
- BUG_ON(target_thread->transaction_stack != t);
- BUG_ON(target_thread->transaction_stack->from != target_thread);
- target_thread->transaction_stack =
- target_thread->transaction_stack->from_parent;
- t->from = NULL;
+ struct binder_node *node;
+ struct binder_ref *ref;
+
+ binder_proc_lock(proc);
+ ref = binder_get_ref_olocked(proc, desc, need_strong_ref);
+ if (!ref)
+ goto err_no_ref;
+ node = ref->node;
+ /*
+ * Take an implicit reference on the node to ensure
+ * it stays alive until the call to binder_put_node()
+ */
+ binder_inc_node_tmpref(node);
+ if (rdata)
+ *rdata = ref->data;
+ binder_proc_unlock(proc);
+
+ return node;
+
+err_no_ref:
+ binder_proc_unlock(proc);
+ return NULL;
+}
+
+/**
+ * binder_free_ref() - free the binder_ref
+ * @ref: ref to free
+ *
+ * Free the binder_ref. Free the binder_node indicated by ref->node
+ * (if non-NULL) and the binder_ref_death indicated by ref->death.
+ */
+static void binder_free_ref(struct binder_ref *ref)
+{
+ if (ref->node)
+ binder_free_node(ref->node);
+ kfree(ref->death);
+ kfree(ref);
+}
+
+/**
+ * binder_update_ref_for_handle() - inc/dec the ref for given handle
+ * @proc: proc containing the ref
+ * @desc: the handle associated with the ref
+ * @increment: true=inc reference, false=dec reference
+ * @strong: true=strong reference, false=weak reference
+ * @rdata: the id/refcount data for the ref
+ *
+ * Given a proc and ref handle, increment or decrement the ref
+ * according to "increment" arg.
+ *
+ * Return: 0 if successful, else errno
+ */
+static int binder_update_ref_for_handle(struct binder_proc *proc,
+ uint32_t desc, bool increment, bool strong,
+ struct binder_ref_data *rdata)
+{
+ int ret = 0;
+ struct binder_ref *ref;
+ bool delete_ref = false;
+
+ binder_proc_lock(proc);
+ ref = binder_get_ref_olocked(proc, desc, strong);
+ if (!ref) {
+ ret = -EINVAL;
+ goto err_no_ref;
}
- t->need_reply = 0;
+ if (increment)
+ ret = binder_inc_ref_olocked(ref, strong, NULL);
+ else
+ delete_ref = binder_dec_ref_olocked(ref, strong);
+
+ if (rdata)
+ *rdata = ref->data;
+ binder_proc_unlock(proc);
+
+ if (delete_ref)
+ binder_free_ref(ref);
+ return ret;
+
+err_no_ref:
+ binder_proc_unlock(proc);
+ return ret;
+}
+
+/**
+ * binder_dec_ref_for_handle() - dec the ref for given handle
+ * @proc: proc containing the ref
+ * @desc: the handle associated with the ref
+ * @strong: true=strong reference, false=weak reference
+ * @rdata: the id/refcount data for the ref
+ *
+ * Just calls binder_update_ref_for_handle() to decrement the ref.
+ *
+ * Return: 0 if successful, else errno
+ */
+static int binder_dec_ref_for_handle(struct binder_proc *proc,
+ uint32_t desc, bool strong, struct binder_ref_data *rdata)
+{
+ return binder_update_ref_for_handle(proc, desc, false, strong, rdata);
+}
+
+
+/**
+ * binder_inc_ref_for_node() - increment the ref for given proc/node
+ * @proc: proc containing the ref
+ * @node: target node
+ * @strong: true=strong reference, false=weak reference
+ * @target_list: worklist to use if node is incremented
+ * @rdata: the id/refcount data for the ref
+ *
+ * Given a proc and node, increment the ref. Create the ref if it
+ * doesn't already exist
+ *
+ * Return: 0 if successful, else errno
+ */
+static int binder_inc_ref_for_node(struct binder_proc *proc,
+ struct binder_node *node,
+ bool strong,
+ struct list_head *target_list,
+ struct binder_ref_data *rdata)
+{
+ struct binder_ref *ref;
+ struct binder_ref *new_ref = NULL;
+ int ret = 0;
+
+ binder_proc_lock(proc);
+ ref = binder_get_ref_for_node_olocked(proc, node, NULL);
+ if (!ref) {
+ binder_proc_unlock(proc);
+ new_ref = kzalloc(sizeof(*ref), GFP_KERNEL);
+ if (!new_ref)
+ return -ENOMEM;
+ binder_proc_lock(proc);
+ ref = binder_get_ref_for_node_olocked(proc, node, new_ref);
+ }
+ ret = binder_inc_ref_olocked(ref, strong, target_list);
+ *rdata = ref->data;
+ binder_proc_unlock(proc);
+ if (new_ref && ref != new_ref)
+ /*
+ * Another thread created the ref first so
+ * free the one we allocated
+ */
+ kfree(new_ref);
+ return ret;
+}
+
+static void binder_pop_transaction_ilocked(struct binder_thread *target_thread,
+ struct binder_transaction *t)
+{
+ BUG_ON(!target_thread);
+ assert_spin_locked(&target_thread->proc->inner_lock);
+ BUG_ON(target_thread->transaction_stack != t);
+ BUG_ON(target_thread->transaction_stack->from != target_thread);
+ target_thread->transaction_stack =
+ target_thread->transaction_stack->from_parent;
+ t->from = NULL;
+}
+
+/**
+ * binder_thread_dec_tmpref() - decrement thread->tmp_ref
+ * @thread: thread to decrement
+ *
+ * A thread needs to be kept alive while being used to create or
+ * handle a transaction. binder_get_txn_from() is used to safely
+ * extract t->from from a binder_transaction and keep the thread
+ * indicated by t->from from being freed. When done with that
+ * binder_thread, this function is called to decrement the
+ * tmp_ref and free if appropriate (thread has been released
+ * and no transaction being processed by the driver)
+ */
+static void binder_thread_dec_tmpref(struct binder_thread *thread)
+{
+ /*
+ * atomic is used to protect the counter value while
+ * it cannot reach zero or thread->is_dead is false
+ */
+ binder_inner_proc_lock(thread->proc);
+ atomic_dec(&thread->tmp_ref);
+ if (thread->is_dead && !atomic_read(&thread->tmp_ref)) {
+ binder_inner_proc_unlock(thread->proc);
+ binder_free_thread(thread);
+ return;
+ }
+ binder_inner_proc_unlock(thread->proc);
+}
+
+/**
+ * binder_proc_dec_tmpref() - decrement proc->tmp_ref
+ * @proc: proc to decrement
+ *
+ * A binder_proc needs to be kept alive while being used to create or
+ * handle a transaction. proc->tmp_ref is incremented when
+ * creating a new transaction or the binder_proc is currently in-use
+ * by threads that are being released. When done with the binder_proc,
+ * this function is called to decrement the counter and free the
+ * proc if appropriate (proc has been released, all threads have
+ * been released and not currenly in-use to process a transaction).
+ */
+static void binder_proc_dec_tmpref(struct binder_proc *proc)
+{
+ binder_inner_proc_lock(proc);
+ proc->tmp_ref--;
+ if (proc->is_dead && RB_EMPTY_ROOT(&proc->threads) &&
+ !proc->tmp_ref) {
+ binder_inner_proc_unlock(proc);
+ binder_free_proc(proc);
+ return;
+ }
+ binder_inner_proc_unlock(proc);
+}
+
+/**
+ * binder_get_txn_from() - safely extract the "from" thread in transaction
+ * @t: binder transaction for t->from
+ *
+ * Atomically return the "from" thread and increment the tmp_ref
+ * count for the thread to ensure it stays alive until
+ * binder_thread_dec_tmpref() is called.
+ *
+ * Return: the value of t->from
+ */
+static struct binder_thread *binder_get_txn_from(
+ struct binder_transaction *t)
+{
+ struct binder_thread *from;
+
+ spin_lock(&t->lock);
+ from = t->from;
+ if (from)
+ atomic_inc(&from->tmp_ref);
+ spin_unlock(&t->lock);
+ return from;
+}
+
+/**
+ * binder_get_txn_from_and_acq_inner() - get t->from and acquire inner lock
+ * @t: binder transaction for t->from
+ *
+ * Same as binder_get_txn_from() except it also acquires the proc->inner_lock
+ * to guarantee that the thread cannot be released while operating on it.
+ * The caller must call binder_inner_proc_unlock() to release the inner lock
+ * as well as call binder_dec_thread_txn() to release the reference.
+ *
+ * Return: the value of t->from
+ */
+static struct binder_thread *binder_get_txn_from_and_acq_inner(
+ struct binder_transaction *t)
+{
+ struct binder_thread *from;
+
+ from = binder_get_txn_from(t);
+ if (!from)
+ return NULL;
+ binder_inner_proc_lock(from->proc);
+ if (t->from) {
+ BUG_ON(from != t->from);
+ return from;
+ }
+ binder_inner_proc_unlock(from->proc);
+ binder_thread_dec_tmpref(from);
+ return NULL;
+}
+
+static void binder_free_transaction(struct binder_transaction *t)
+{
if (t->buffer)
t->buffer->transaction = NULL;
kfree(t);
@@ -1235,30 +1904,28 @@ static void binder_send_failed_reply(struct binder_transaction *t,
BUG_ON(t->flags & TF_ONE_WAY);
while (1) {
- target_thread = t->from;
+ target_thread = binder_get_txn_from_and_acq_inner(t);
if (target_thread) {
- if (target_thread->return_error != BR_OK &&
- target_thread->return_error2 == BR_OK) {
- target_thread->return_error2 =
- target_thread->return_error;
- target_thread->return_error = BR_OK;
- }
- if (target_thread->return_error == BR_OK) {
- binder_debug(BINDER_DEBUG_FAILED_TRANSACTION,
- "send failed reply for transaction %d to %d:%d\n",
- t->debug_id,
- target_thread->proc->pid,
- target_thread->pid);
-
- binder_pop_transaction(target_thread, t);
- target_thread->return_error = error_code;
+ binder_debug(BINDER_DEBUG_FAILED_TRANSACTION,
+ "send failed reply for transaction %d to %d:%d\n",
+ t->debug_id,
+ target_thread->proc->pid,
+ target_thread->pid);
+
+ binder_pop_transaction_ilocked(target_thread, t);
+ if (target_thread->reply_error.cmd == BR_OK) {
+ target_thread->reply_error.cmd = error_code;
+ binder_enqueue_work_ilocked(
+ &target_thread->reply_error.work,
+ &target_thread->todo);
wake_up_interruptible(&target_thread->wait);
} else {
- pr_err("reply failed, target thread, %d:%d, has error code %d already\n",
- target_thread->proc->pid,
- target_thread->pid,
- target_thread->return_error);
+ WARN(1, "Unexpected reply error: %u\n",
+ target_thread->reply_error.cmd);
}
+ binder_inner_proc_unlock(target_thread->proc);
+ binder_thread_dec_tmpref(target_thread);
+ binder_free_transaction(t);
return;
}
next = t->from_parent;
@@ -1267,7 +1934,7 @@ static void binder_send_failed_reply(struct binder_transaction *t,
"send failed reply for transaction %d, target dead\n",
t->debug_id);
- binder_pop_transaction(target_thread, t);
+ binder_free_transaction(t);
if (next == NULL) {
binder_debug(BINDER_DEBUG_DEAD_BINDER,
"reply failed, no target thread at root\n");
@@ -1476,24 +2143,26 @@ static void binder_transaction_buffer_release(struct binder_proc *proc,
node->debug_id, (u64)node->ptr);
binder_dec_node(node, hdr->type == BINDER_TYPE_BINDER,
0);
+ binder_put_node(node);
} break;
case BINDER_TYPE_HANDLE:
case BINDER_TYPE_WEAK_HANDLE: {
struct flat_binder_object *fp;
- struct binder_ref *ref;
+ struct binder_ref_data rdata;
+ int ret;
fp = to_flat_binder_object(hdr);
- ref = binder_get_ref(proc, fp->handle,
- hdr->type == BINDER_TYPE_HANDLE);
- if (ref == NULL) {
- pr_err("transaction release %d bad handle %d\n",
- debug_id, fp->handle);
+ ret = binder_dec_ref_for_handle(proc, fp->handle,
+ hdr->type == BINDER_TYPE_HANDLE, &rdata);
+
+ if (ret) {
+ pr_err("transaction release %d bad handle %d, ret = %d\n",
+ debug_id, fp->handle, ret);
break;
}
binder_debug(BINDER_DEBUG_TRANSACTION,
- " ref %d desc %d (node %d)\n",
- ref->debug_id, ref->desc, ref->node->debug_id);
- binder_dec_ref(ref, hdr->type == BINDER_TYPE_HANDLE);
+ " ref %d desc %d\n",
+ rdata.debug_id, rdata.desc);
} break;
case BINDER_TYPE_FD: {
@@ -1532,7 +2201,8 @@ static void binder_transaction_buffer_release(struct binder_proc *proc,
* back to kernel address space to access it
*/
parent_buffer = parent->buffer -
- proc->user_buffer_offset;
+ binder_alloc_get_user_buffer_offset(
+ &proc->alloc);
fd_buf_size = sizeof(u32) * fda->num_fds;
if (fda->num_fds >= SIZE_MAX / sizeof(u32)) {
@@ -1547,7 +2217,7 @@ static void binder_transaction_buffer_release(struct binder_proc *proc,
debug_id, (u64)fda->num_fds);
continue;
}
- fd_array = (u32 *)(parent_buffer + fda->parent_offset);
+ fd_array = (u32 *)(parent_buffer + (uintptr_t)fda->parent_offset);
for (fd_index = 0; fd_index < fda->num_fds; fd_index++)
task_close_fd(proc, fd_array[fd_index]);
} break;
@@ -1564,102 +2234,121 @@ static int binder_translate_binder(struct flat_binder_object *fp,
struct binder_thread *thread)
{
struct binder_node *node;
- struct binder_ref *ref;
struct binder_proc *proc = thread->proc;
struct binder_proc *target_proc = t->to_proc;
+ struct binder_ref_data rdata;
+ int ret = 0;
node = binder_get_node(proc, fp->binder);
if (!node) {
- node = binder_new_node(proc, fp->binder, fp->cookie);
+ node = binder_new_node(proc, fp);
if (!node)
return -ENOMEM;
-
- node->min_priority = fp->flags & FLAT_BINDER_FLAG_PRIORITY_MASK;
- node->accept_fds = !!(fp->flags & FLAT_BINDER_FLAG_ACCEPTS_FDS);
}
if (fp->cookie != node->cookie) {
binder_user_error("%d:%d sending u%016llx node %d, cookie mismatch %016llx != %016llx\n",
proc->pid, thread->pid, (u64)fp->binder,
node->debug_id, (u64)fp->cookie,
(u64)node->cookie);
- return -EINVAL;
+ ret = -EINVAL;
+ goto done;
+ }
+ if (security_binder_transfer_binder(proc->tsk, target_proc->tsk)) {
+ ret = -EPERM;
+ goto done;
}
- if (security_binder_transfer_binder(proc->tsk, target_proc->tsk))
- return -EPERM;
- ref = binder_get_ref_for_node(target_proc, node);
- if (!ref)
- return -EINVAL;
+ ret = binder_inc_ref_for_node(target_proc, node,
+ fp->hdr.type == BINDER_TYPE_BINDER,
+ &thread->todo, &rdata);
+ if (ret)
+ goto done;
if (fp->hdr.type == BINDER_TYPE_BINDER)
fp->hdr.type = BINDER_TYPE_HANDLE;
else
fp->hdr.type = BINDER_TYPE_WEAK_HANDLE;
fp->binder = 0;
- fp->handle = ref->desc;
+ fp->handle = rdata.desc;
fp->cookie = 0;
- binder_inc_ref(ref, fp->hdr.type == BINDER_TYPE_HANDLE, &thread->todo);
- trace_binder_transaction_node_to_ref(t, node, ref);
+ trace_binder_transaction_node_to_ref(t, node, &rdata);
binder_debug(BINDER_DEBUG_TRANSACTION,
" node %d u%016llx -> ref %d desc %d\n",
node->debug_id, (u64)node->ptr,
- ref->debug_id, ref->desc);
-
- return 0;
+ rdata.debug_id, rdata.desc);
+done:
+ binder_put_node(node);
+ return ret;
}
static int binder_translate_handle(struct flat_binder_object *fp,
struct binder_transaction *t,
struct binder_thread *thread)
{
- struct binder_ref *ref;
struct binder_proc *proc = thread->proc;
struct binder_proc *target_proc = t->to_proc;
+ struct binder_node *node;
+ struct binder_ref_data src_rdata;
+ int ret = 0;
- ref = binder_get_ref(proc, fp->handle,
- fp->hdr.type == BINDER_TYPE_HANDLE);
- if (!ref) {
+ node = binder_get_node_from_ref(proc, fp->handle,
+ fp->hdr.type == BINDER_TYPE_HANDLE, &src_rdata);
+ if (!node) {
binder_user_error("%d:%d got transaction with invalid handle, %d\n",
proc->pid, thread->pid, fp->handle);
return -EINVAL;
}
- if (security_binder_transfer_binder(proc->tsk, target_proc->tsk))
- return -EPERM;
+ if (security_binder_transfer_binder(proc->tsk, target_proc->tsk)) {
+ ret = -EPERM;
+ goto done;
+ }
- if (ref->node->proc == target_proc) {
+ binder_node_lock(node);
+ if (node->proc == target_proc) {
if (fp->hdr.type == BINDER_TYPE_HANDLE)
fp->hdr.type = BINDER_TYPE_BINDER;
else
fp->hdr.type = BINDER_TYPE_WEAK_BINDER;
- fp->binder = ref->node->ptr;
- fp->cookie = ref->node->cookie;
- binder_inc_node(ref->node, fp->hdr.type == BINDER_TYPE_BINDER,
- 0, NULL);
- trace_binder_transaction_ref_to_node(t, ref);
+ fp->binder = node->ptr;
+ fp->cookie = node->cookie;
+ if (node->proc)
+ binder_inner_proc_lock(node->proc);
+ binder_inc_node_nilocked(node,
+ fp->hdr.type == BINDER_TYPE_BINDER,
+ 0, NULL);
+ if (node->proc)
+ binder_inner_proc_unlock(node->proc);
+ trace_binder_transaction_ref_to_node(t, node, &src_rdata);
binder_debug(BINDER_DEBUG_TRANSACTION,
" ref %d desc %d -> node %d u%016llx\n",
- ref->debug_id, ref->desc, ref->node->debug_id,
- (u64)ref->node->ptr);
+ src_rdata.debug_id, src_rdata.desc, node->debug_id,
+ (u64)node->ptr);
+ binder_node_unlock(node);
} else {
- struct binder_ref *new_ref;
+ struct binder_ref_data dest_rdata;
- new_ref = binder_get_ref_for_node(target_proc, ref->node);
- if (!new_ref)
- return -EINVAL;
+ binder_node_unlock(node);
+ ret = binder_inc_ref_for_node(target_proc, node,
+ fp->hdr.type == BINDER_TYPE_HANDLE,
+ NULL, &dest_rdata);
+ if (ret)
+ goto done;
fp->binder = 0;
- fp->handle = new_ref->desc;
+ fp->handle = dest_rdata.desc;
fp->cookie = 0;
- binder_inc_ref(new_ref, fp->hdr.type == BINDER_TYPE_HANDLE,
- NULL);
- trace_binder_transaction_ref_to_ref(t, ref, new_ref);
+ trace_binder_transaction_ref_to_ref(t, node, &src_rdata,
+ &dest_rdata);
binder_debug(BINDER_DEBUG_TRANSACTION,
" ref %d desc %d -> ref %d desc %d (node %d)\n",
- ref->debug_id, ref->desc, new_ref->debug_id,
- new_ref->desc, ref->node->debug_id);
+ src_rdata.debug_id, src_rdata.desc,
+ dest_rdata.debug_id, dest_rdata.desc,
+ node->debug_id);
}
- return 0;
+done:
+ binder_put_node(node);
+ return ret;
}
static int binder_translate_fd(int fd,
@@ -1750,8 +2439,9 @@ static int binder_translate_fd_array(struct binder_fd_array_object *fda,
* Since the parent was already fixed up, convert it
* back to the kernel address space to access it
*/
- parent_buffer = parent->buffer - target_proc->user_buffer_offset;
- fd_array = (u32 *)(parent_buffer + fda->parent_offset);
+ parent_buffer = parent->buffer -
+ binder_alloc_get_user_buffer_offset(&target_proc->alloc);
+ fd_array = (u32 *)(parent_buffer + (uintptr_t)fda->parent_offset);
if (!IS_ALIGNED((unsigned long)fd_array, sizeof(u32))) {
binder_user_error("%d:%d parent offset not aligned correctly.\n",
proc->pid, thread->pid);
@@ -1817,13 +2507,123 @@ static int binder_fixup_parent(struct binder_transaction *t,
proc->pid, thread->pid);
return -EINVAL;
}
- parent_buffer = (u8 *)(parent->buffer -
- target_proc->user_buffer_offset);
+ parent_buffer = (u8 *)((uintptr_t)parent->buffer -
+ binder_alloc_get_user_buffer_offset(
+ &target_proc->alloc));
*(binder_uintptr_t *)(parent_buffer + bp->parent_offset) = bp->buffer;
return 0;
}
+/**
+ * binder_proc_transaction() - sends a transaction to a process and wakes it up
+ * @t: transaction to send
+ * @proc: process to send the transaction to
+ * @thread: thread in @proc to send the transaction to (may be NULL)
+ *
+ * This function queues a transaction to the specified process. It will try
+ * to find a thread in the target process to handle the transaction and
+ * wake it up. If no thread is found, the work is queued to the proc
+ * waitqueue.
+ *
+ * If the @thread parameter is not NULL, the transaction is always queued
+ * to the waitlist of that specific thread.
+ *
+ * Return: true if the transactions was successfully queued
+ * false if the target process or thread is dead
+ */
+static bool binder_proc_transaction(struct binder_transaction *t,
+ struct binder_proc *proc,
+ struct binder_thread *thread)
+{
+ struct list_head *target_list = NULL;
+ struct binder_node *node = t->buffer->target_node;
+ bool oneway = !!(t->flags & TF_ONE_WAY);
+ bool wakeup = true;
+
+ BUG_ON(!node);
+ binder_node_lock(node);
+ if (oneway) {
+ BUG_ON(thread);
+ if (node->has_async_transaction) {
+ target_list = &node->async_todo;
+ wakeup = false;
+ } else {
+ node->has_async_transaction = 1;
+ }
+ }
+
+ binder_inner_proc_lock(proc);
+
+ if (proc->is_dead || (thread && thread->is_dead)) {
+ binder_inner_proc_unlock(proc);
+ binder_node_unlock(node);
+ return false;
+ }
+
+ if (!thread && !target_list)
+ thread = binder_select_thread_ilocked(proc);
+
+ if (thread)
+ target_list = &thread->todo;
+ else if (!target_list)
+ target_list = &proc->todo;
+ else
+ BUG_ON(target_list != &node->async_todo);
+
+ binder_enqueue_work_ilocked(&t->work, target_list);
+
+ if (wakeup)
+ binder_wakeup_thread_ilocked(proc, thread, !oneway /* sync */);
+
+ binder_inner_proc_unlock(proc);
+ binder_node_unlock(node);
+
+ return true;
+}
+
+/**
+ * binder_get_node_refs_for_txn() - Get required refs on node for txn
+ * @node: struct binder_node for which to get refs
+ * @proc: returns @node->proc if valid
+ * @error: if no @proc then returns BR_DEAD_REPLY
+ *
+ * User-space normally keeps the node alive when creating a transaction
+ * since it has a reference to the target. The local strong ref keeps it
+ * alive if the sending process dies before the target process processes
+ * the transaction. If the source process is malicious or has a reference
+ * counting bug, relying on the local strong ref can fail.
+ *
+ * Since user-space can cause the local strong ref to go away, we also take
+ * a tmpref on the node to ensure it survives while we are constructing
+ * the transaction. We also need a tmpref on the proc while we are
+ * constructing the transaction, so we take that here as well.
+ *
+ * Return: The target_node with refs taken or NULL if no @node->proc is NULL.
+ * Also sets @proc if valid. If the @node->proc is NULL indicating that the
+ * target proc has died, @error is set to BR_DEAD_REPLY
+ */
+static struct binder_node *binder_get_node_refs_for_txn(
+ struct binder_node *node,
+ struct binder_proc **procp,
+ uint32_t *error)
+{
+ struct binder_node *target_node = NULL;
+
+ binder_node_inner_lock(node);
+ if (node->proc) {
+ target_node = node;
+ binder_inc_node_nilocked(node, 1, 0, NULL);
+ binder_inc_node_tmpref_ilocked(node);
+ node->proc->tmp_ref++;
+ *procp = node->proc;
+ } else
+ *error = BR_DEAD_REPLY;
+ binder_node_inner_unlock(node);
+
+ return target_node;
+}
+
static void binder_transaction(struct binder_proc *proc,
struct binder_thread *thread,
struct binder_transaction_data *tr, int reply,
@@ -1835,19 +2635,21 @@ static void binder_transaction(struct binder_proc *proc,
binder_size_t *offp, *off_end, *off_start;
binder_size_t off_min;
u8 *sg_bufp, *sg_buf_end;
- struct binder_proc *target_proc;
+ struct binder_proc *target_proc = NULL;
struct binder_thread *target_thread = NULL;
struct binder_node *target_node = NULL;
- struct list_head *target_list;
- wait_queue_head_t *target_wait;
struct binder_transaction *in_reply_to = NULL;
struct binder_transaction_log_entry *e;
- uint32_t return_error;
+ uint32_t return_error = 0;
+ uint32_t return_error_param = 0;
+ uint32_t return_error_line = 0;
struct binder_buffer_object *last_fixup_obj = NULL;
binder_size_t last_fixup_min_off = 0;
struct binder_context *context = proc->context;
+ int t_debug_id = atomic_inc_return(&binder_last_id);
e = binder_transaction_log_add(&binder_transaction_log);
+ e->debug_id = t_debug_id;
e->call_type = reply ? 2 : !!(tr->flags & TF_ONE_WAY);
e->from_proc = proc->pid;
e->from_thread = thread->pid;
@@ -1857,29 +2659,40 @@ static void binder_transaction(struct binder_proc *proc,
e->context_name = proc->context->name;
if (reply) {
+ binder_inner_proc_lock(proc);
in_reply_to = thread->transaction_stack;
if (in_reply_to == NULL) {
+ binder_inner_proc_unlock(proc);
binder_user_error("%d:%d got reply transaction with no transaction stack\n",
proc->pid, thread->pid);
return_error = BR_FAILED_REPLY;
+ return_error_param = -EPROTO;
+ return_error_line = __LINE__;
goto err_empty_call_stack;
}
- binder_set_nice(in_reply_to->saved_priority);
if (in_reply_to->to_thread != thread) {
+ spin_lock(&in_reply_to->lock);
binder_user_error("%d:%d got reply transaction with bad transaction stack, transaction %d has target %d:%d\n",
proc->pid, thread->pid, in_reply_to->debug_id,
in_reply_to->to_proc ?
in_reply_to->to_proc->pid : 0,
in_reply_to->to_thread ?
in_reply_to->to_thread->pid : 0);
+ spin_unlock(&in_reply_to->lock);
+ binder_inner_proc_unlock(proc);
return_error = BR_FAILED_REPLY;
+ return_error_param = -EPROTO;
+ return_error_line = __LINE__;
in_reply_to = NULL;
goto err_bad_call_stack;
}
thread->transaction_stack = in_reply_to->to_parent;
- target_thread = in_reply_to->from;
+ binder_inner_proc_unlock(proc);
+ binder_set_nice(in_reply_to->saved_priority);
+ target_thread = binder_get_txn_from_and_acq_inner(in_reply_to);
if (target_thread == NULL) {
return_error = BR_DEAD_REPLY;
+ return_error_line = __LINE__;
goto err_dead_binder;
}
if (target_thread->transaction_stack != in_reply_to) {
@@ -1888,89 +2701,129 @@ static void binder_transaction(struct binder_proc *proc,
target_thread->transaction_stack ?
target_thread->transaction_stack->debug_id : 0,
in_reply_to->debug_id);
+ binder_inner_proc_unlock(target_thread->proc);
return_error = BR_FAILED_REPLY;
+ return_error_param = -EPROTO;
+ return_error_line = __LINE__;
in_reply_to = NULL;
target_thread = NULL;
goto err_dead_binder;
}
target_proc = target_thread->proc;
+ target_proc->tmp_ref++;
+ binder_inner_proc_unlock(target_thread->proc);
} else {
if (tr->target.handle) {
struct binder_ref *ref;
- ref = binder_get_ref(proc, tr->target.handle, true);
- if (ref == NULL) {
+ /*
+ * There must already be a strong ref
+ * on this node. If so, do a strong
+ * increment on the node to ensure it
+ * stays alive until the transaction is
+ * done.
+ */
+ binder_proc_lock(proc);
+ ref = binder_get_ref_olocked(proc, tr->target.handle,
+ true);
+ if (ref) {
+ target_node = binder_get_node_refs_for_txn(
+ ref->node, &target_proc,
+ &return_error);
+ } else {
binder_user_error("%d:%d got transaction to invalid handle\n",
- proc->pid, thread->pid);
+ proc->pid, thread->pid);
return_error = BR_FAILED_REPLY;
- goto err_invalid_target_handle;
}
- target_node = ref->node;
+ binder_proc_unlock(proc);
} else {
+ mutex_lock(&context->context_mgr_node_lock);
target_node = context->binder_context_mgr_node;
- if (target_node == NULL) {
+ if (target_node)
+ target_node = binder_get_node_refs_for_txn(
+ target_node, &target_proc,
+ &return_error);
+ else
return_error = BR_DEAD_REPLY;
- goto err_no_context_mgr_node;
- }
+ mutex_unlock(&context->context_mgr_node_lock);
}
- e->to_node = target_node->debug_id;
- target_proc = target_node->proc;
- if (target_proc == NULL) {
- return_error = BR_DEAD_REPLY;
+ if (!target_node) {
+ /*
+ * return_error is set above
+ */
+ return_error_param = -EINVAL;
+ return_error_line = __LINE__;
goto err_dead_binder;
}
+ e->to_node = target_node->debug_id;
if (security_binder_transaction(proc->tsk,
target_proc->tsk) < 0) {
return_error = BR_FAILED_REPLY;
+ return_error_param = -EPERM;
+ return_error_line = __LINE__;
goto err_invalid_target_handle;
}
+ binder_inner_proc_lock(proc);
if (!(tr->flags & TF_ONE_WAY) && thread->transaction_stack) {
struct binder_transaction *tmp;
tmp = thread->transaction_stack;
if (tmp->to_thread != thread) {
+ spin_lock(&tmp->lock);
binder_user_error("%d:%d got new transaction with bad transaction stack, transaction %d has target %d:%d\n",
proc->pid, thread->pid, tmp->debug_id,
tmp->to_proc ? tmp->to_proc->pid : 0,
tmp->to_thread ?
tmp->to_thread->pid : 0);
+ spin_unlock(&tmp->lock);
+ binder_inner_proc_unlock(proc);
return_error = BR_FAILED_REPLY;
+ return_error_param = -EPROTO;
+ return_error_line = __LINE__;
goto err_bad_call_stack;
}
while (tmp) {
- if (tmp->from && tmp->from->proc == target_proc)
- target_thread = tmp->from;
+ struct binder_thread *from;
+
+ spin_lock(&tmp->lock);
+ from = tmp->from;
+ if (from && from->proc == target_proc) {
+ atomic_inc(&from->tmp_ref);
+ target_thread = from;
+ spin_unlock(&tmp->lock);
+ break;
+ }
+ spin_unlock(&tmp->lock);
tmp = tmp->from_parent;
}
}
+ binder_inner_proc_unlock(proc);
}
- if (target_thread) {
+ if (target_thread)
e->to_thread = target_thread->pid;
- target_list = &target_thread->todo;
- target_wait = &target_thread->wait;
- } else {
- target_list = &target_proc->todo;
- target_wait = &target_proc->wait;
- }
e->to_proc = target_proc->pid;
/* TODO: reuse incoming transaction for reply */
t = kzalloc(sizeof(*t), GFP_KERNEL);
if (t == NULL) {
return_error = BR_FAILED_REPLY;
+ return_error_param = -ENOMEM;
+ return_error_line = __LINE__;
goto err_alloc_t_failed;
}
binder_stats_created(BINDER_STAT_TRANSACTION);
+ spin_lock_init(&t->lock);
tcomplete = kzalloc(sizeof(*tcomplete), GFP_KERNEL);
if (tcomplete == NULL) {
return_error = BR_FAILED_REPLY;
+ return_error_param = -ENOMEM;
+ return_error_line = __LINE__;
goto err_alloc_tcomplete_failed;
}
binder_stats_created(BINDER_STAT_TRANSACTION_COMPLETE);
- t->debug_id = ++binder_last_id;
- e->debug_id = t->debug_id;
+ t->debug_id = t_debug_id;
if (reply)
binder_debug(BINDER_DEBUG_TRANSACTION,
@@ -2004,11 +2857,18 @@ static void binder_transaction(struct binder_proc *proc,
trace_binder_transaction(reply, t, target_node);
- t->buffer = binder_alloc_buf(target_proc, tr->data_size,
+ t->buffer = binder_alloc_new_buf(&target_proc->alloc, tr->data_size,
tr->offsets_size, extra_buffers_size,
!reply && (t->flags & TF_ONE_WAY));
- if (t->buffer == NULL) {
- return_error = BR_FAILED_REPLY;
+ if (IS_ERR(t->buffer)) {
+ /*
+ * -ESRCH indicates VMA cleared. The target is dying.
+ */
+ return_error_param = PTR_ERR(t->buffer);
+ return_error = return_error_param == -ESRCH ?
+ BR_DEAD_REPLY : BR_FAILED_REPLY;
+ return_error_line = __LINE__;
+ t->buffer = NULL;
goto err_binder_alloc_buf_failed;
}
t->buffer->allow_user_free = 0;
@@ -2016,9 +2876,6 @@ static void binder_transaction(struct binder_proc *proc,
t->buffer->transaction = t;
t->buffer->target_node = target_node;
trace_binder_transaction_alloc_buf(t->buffer);
- if (target_node)
- binder_inc_node(target_node, 1, 0, NULL);
-
off_start = (binder_size_t *)(t->buffer->data +
ALIGN(tr->data_size, sizeof(void *)));
offp = off_start;
@@ -2028,6 +2885,8 @@ static void binder_transaction(struct binder_proc *proc,
binder_user_error("%d:%d got transaction with invalid data ptr\n",
proc->pid, thread->pid);
return_error = BR_FAILED_REPLY;
+ return_error_param = -EFAULT;
+ return_error_line = __LINE__;
goto err_copy_data_failed;
}
if (copy_from_user(offp, (const void __user *)(uintptr_t)
@@ -2035,12 +2894,16 @@ static void binder_transaction(struct binder_proc *proc,
binder_user_error("%d:%d got transaction with invalid offsets ptr\n",
proc->pid, thread->pid);
return_error = BR_FAILED_REPLY;
+ return_error_param = -EFAULT;
+ return_error_line = __LINE__;
goto err_copy_data_failed;
}
if (!IS_ALIGNED(tr->offsets_size, sizeof(binder_size_t))) {
binder_user_error("%d:%d got transaction with invalid offsets size, %lld\n",
proc->pid, thread->pid, (u64)tr->offsets_size);
return_error = BR_FAILED_REPLY;
+ return_error_param = -EINVAL;
+ return_error_line = __LINE__;
goto err_bad_offset;
}
if (!IS_ALIGNED(extra_buffers_size, sizeof(u64))) {
@@ -2048,6 +2911,8 @@ static void binder_transaction(struct binder_proc *proc,
proc->pid, thread->pid,
(u64)extra_buffers_size);
return_error = BR_FAILED_REPLY;
+ return_error_param = -EINVAL;
+ return_error_line = __LINE__;
goto err_bad_offset;
}
off_end = (void *)off_start + tr->offsets_size;
@@ -2064,6 +2929,8 @@ static void binder_transaction(struct binder_proc *proc,
(u64)off_min,
(u64)t->buffer->data_size);
return_error = BR_FAILED_REPLY;
+ return_error_param = -EINVAL;
+ return_error_line = __LINE__;
goto err_bad_offset;
}
@@ -2078,6 +2945,8 @@ static void binder_transaction(struct binder_proc *proc,
ret = binder_translate_binder(fp, t, thread);
if (ret < 0) {
return_error = BR_FAILED_REPLY;
+ return_error_param = ret;
+ return_error_line = __LINE__;
goto err_translate_failed;
}
} break;
@@ -2089,6 +2958,8 @@ static void binder_transaction(struct binder_proc *proc,
ret = binder_translate_handle(fp, t, thread);
if (ret < 0) {
return_error = BR_FAILED_REPLY;
+ return_error_param = ret;
+ return_error_line = __LINE__;
goto err_translate_failed;
}
} break;
@@ -2100,6 +2971,8 @@ static void binder_transaction(struct binder_proc *proc,
if (target_fd < 0) {
return_error = BR_FAILED_REPLY;
+ return_error_param = target_fd;
+ return_error_line = __LINE__;
goto err_translate_failed;
}
fp->pad_binder = 0;
@@ -2116,6 +2989,8 @@ static void binder_transaction(struct binder_proc *proc,
binder_user_error("%d:%d got transaction with invalid parent offset or type\n",
proc->pid, thread->pid);
return_error = BR_FAILED_REPLY;
+ return_error_param = -EINVAL;
+ return_error_line = __LINE__;
goto err_bad_parent;
}
if (!binder_validate_fixup(t->buffer, off_start,
@@ -2125,12 +3000,16 @@ static void binder_transaction(struct binder_proc *proc,
binder_user_error("%d:%d got transaction with out-of-order buffer fixup\n",
proc->pid, thread->pid);
return_error = BR_FAILED_REPLY;
+ return_error_param = -EINVAL;
+ return_error_line = __LINE__;
goto err_bad_parent;
}
ret = binder_translate_fd_array(fda, parent, t, thread,
in_reply_to);
if (ret < 0) {
return_error = BR_FAILED_REPLY;
+ return_error_param = ret;
+ return_error_line = __LINE__;
goto err_translate_failed;
}
last_fixup_obj = parent;
@@ -2146,6 +3025,8 @@ static void binder_transaction(struct binder_proc *proc,
binder_user_error("%d:%d got transaction with too large buffer\n",
proc->pid, thread->pid);
return_error = BR_FAILED_REPLY;
+ return_error_param = -EINVAL;
+ return_error_line = __LINE__;
goto err_bad_offset;
}
if (copy_from_user(sg_bufp,
@@ -2153,12 +3034,15 @@ static void binder_transaction(struct binder_proc *proc,
bp->buffer, bp->length)) {
binder_user_error("%d:%d got transaction with invalid offsets ptr\n",
proc->pid, thread->pid);
+ return_error_param = -EFAULT;
return_error = BR_FAILED_REPLY;
+ return_error_line = __LINE__;
goto err_copy_data_failed;
}
/* Fixup buffer pointer to target proc address space */
bp->buffer = (uintptr_t)sg_bufp +
- target_proc->user_buffer_offset;
+ binder_alloc_get_user_buffer_offset(
+ &target_proc->alloc);
sg_bufp += ALIGN(bp->length, sizeof(u64));
ret = binder_fixup_parent(t, thread, bp, off_start,
@@ -2167,6 +3051,8 @@ static void binder_transaction(struct binder_proc *proc,
last_fixup_min_off);
if (ret < 0) {
return_error = BR_FAILED_REPLY;
+ return_error_param = ret;
+ return_error_line = __LINE__;
goto err_translate_failed;
}
last_fixup_obj = bp;
@@ -2176,34 +3062,63 @@ static void binder_transaction(struct binder_proc *proc,
binder_user_error("%d:%d got transaction with invalid object type, %x\n",
proc->pid, thread->pid, hdr->type);
return_error = BR_FAILED_REPLY;
+ return_error_param = -EINVAL;
+ return_error_line = __LINE__;
goto err_bad_object_type;
}
}
+ tcomplete->type = BINDER_WORK_TRANSACTION_COMPLETE;
+ binder_enqueue_work(proc, tcomplete, &thread->todo);
+ t->work.type = BINDER_WORK_TRANSACTION;
+
if (reply) {
+ binder_inner_proc_lock(target_proc);
+ if (target_thread->is_dead) {
+ binder_inner_proc_unlock(target_proc);
+ goto err_dead_proc_or_thread;
+ }
BUG_ON(t->buffer->async_transaction != 0);
- binder_pop_transaction(target_thread, in_reply_to);
+ binder_pop_transaction_ilocked(target_thread, in_reply_to);
+ binder_enqueue_work_ilocked(&t->work, &target_thread->todo);
+ binder_inner_proc_unlock(target_proc);
+ wake_up_interruptible_sync(&target_thread->wait);
+ binder_free_transaction(in_reply_to);
} else if (!(t->flags & TF_ONE_WAY)) {
BUG_ON(t->buffer->async_transaction != 0);
+ binder_inner_proc_lock(proc);
t->need_reply = 1;
t->from_parent = thread->transaction_stack;
thread->transaction_stack = t;
+ binder_inner_proc_unlock(proc);
+ if (!binder_proc_transaction(t, target_proc, target_thread)) {
+ binder_inner_proc_lock(proc);
+ binder_pop_transaction_ilocked(thread, t);
+ binder_inner_proc_unlock(proc);
+ goto err_dead_proc_or_thread;
+ }
} else {
BUG_ON(target_node == NULL);
BUG_ON(t->buffer->async_transaction != 1);
- if (target_node->has_async_transaction) {
- target_list = &target_node->async_todo;
- target_wait = NULL;
- } else
- target_node->has_async_transaction = 1;
+ if (!binder_proc_transaction(t, target_proc, NULL))
+ goto err_dead_proc_or_thread;
}
- t->work.type = BINDER_WORK_TRANSACTION;
- list_add_tail(&t->work.entry, target_list);
- tcomplete->type = BINDER_WORK_TRANSACTION_COMPLETE;
- list_add_tail(&tcomplete->entry, &thread->todo);
- if (target_wait)
- wake_up_interruptible(target_wait);
+ if (target_thread)
+ binder_thread_dec_tmpref(target_thread);
+ binder_proc_dec_tmpref(target_proc);
+ if (target_node)
+ binder_dec_node_tmpref(target_node);
+ /*
+ * write barrier to synchronize with initialization
+ * of log entry
+ */
+ smp_wmb();
+ WRITE_ONCE(e->debug_id_done, t_debug_id);
return;
+err_dead_proc_or_thread:
+ return_error = BR_DEAD_REPLY;
+ return_error_line = __LINE__;
+ binder_dequeue_work(proc, tcomplete);
err_translate_failed:
err_bad_object_type:
err_bad_offset:
@@ -2211,8 +3126,11 @@ err_bad_parent:
err_copy_data_failed:
trace_binder_transaction_failed_buffer_release(t->buffer);
binder_transaction_buffer_release(target_proc, t->buffer, offp);
+ if (target_node)
+ binder_dec_node_tmpref(target_node);
+ target_node = NULL;
t->buffer->transaction = NULL;
- binder_free_buf(target_proc, t->buffer);
+ binder_alloc_free_buf(&target_proc->alloc, t->buffer);
err_binder_alloc_buf_failed:
kfree(tcomplete);
binder_stats_deleted(BINDER_STAT_TRANSACTION_COMPLETE);
@@ -2224,25 +3142,51 @@ err_bad_call_stack:
err_empty_call_stack:
err_dead_binder:
err_invalid_target_handle:
-err_no_context_mgr_node:
+ if (target_thread)
+ binder_thread_dec_tmpref(target_thread);
+ if (target_proc)
+ binder_proc_dec_tmpref(target_proc);
+ if (target_node) {
+ binder_dec_node(target_node, 1, 0);
+ binder_dec_node_tmpref(target_node);
+ }
+
binder_debug(BINDER_DEBUG_FAILED_TRANSACTION,
- "%d:%d transaction failed %d, size %lld-%lld\n",
- proc->pid, thread->pid, return_error,
- (u64)tr->data_size, (u64)tr->offsets_size);
+ "%d:%d transaction failed %d/%d, size %lld-%lld line %d\n",
+ proc->pid, thread->pid, return_error, return_error_param,
+ (u64)tr->data_size, (u64)tr->offsets_size,
+ return_error_line);
{
struct binder_transaction_log_entry *fe;
+ e->return_error = return_error;
+ e->return_error_param = return_error_param;
+ e->return_error_line = return_error_line;
fe = binder_transaction_log_add(&binder_transaction_log_failed);
*fe = *e;
+ /*
+ * write barrier to synchronize with initialization
+ * of log entry
+ */
+ smp_wmb();
+ WRITE_ONCE(e->debug_id_done, t_debug_id);
+ WRITE_ONCE(fe->debug_id_done, t_debug_id);
}
- BUG_ON(thread->return_error != BR_OK);
+ BUG_ON(thread->return_error.cmd != BR_OK);
if (in_reply_to) {
- thread->return_error = BR_TRANSACTION_COMPLETE;
+ thread->return_error.cmd = BR_TRANSACTION_COMPLETE;
+ binder_enqueue_work(thread->proc,
+ &thread->return_error.work,
+ &thread->todo);
binder_send_failed_reply(in_reply_to, return_error);
- } else
- thread->return_error = return_error;
+ } else {
+ thread->return_error.cmd = return_error;
+ binder_enqueue_work(thread->proc,
+ &thread->return_error.work,
+ &thread->todo);
+ }
}
static int binder_thread_write(struct binder_proc *proc,
@@ -2256,15 +3200,17 @@ static int binder_thread_write(struct binder_proc *proc,
void __user *ptr = buffer + *consumed;
void __user *end = buffer + size;
- while (ptr < end && thread->return_error == BR_OK) {
+ while (ptr < end && thread->return_error.cmd == BR_OK) {
+ int ret;
+
if (get_user(cmd, (uint32_t __user *)ptr))
return -EFAULT;
ptr += sizeof(uint32_t);
trace_binder_command(cmd);
if (_IOC_NR(cmd) < ARRAY_SIZE(binder_stats.bc)) {
- binder_stats.bc[_IOC_NR(cmd)]++;
- proc->stats.bc[_IOC_NR(cmd)]++;
- thread->stats.bc[_IOC_NR(cmd)]++;
+ atomic_inc(&binder_stats.bc[_IOC_NR(cmd)]);
+ atomic_inc(&proc->stats.bc[_IOC_NR(cmd)]);
+ atomic_inc(&thread->stats.bc[_IOC_NR(cmd)]);
}
switch (cmd) {
case BC_INCREFS:
@@ -2272,53 +3218,61 @@ static int binder_thread_write(struct binder_proc *proc,
case BC_RELEASE:
case BC_DECREFS: {
uint32_t target;
- struct binder_ref *ref;
const char *debug_string;
+ bool strong = cmd == BC_ACQUIRE || cmd == BC_RELEASE;
+ bool increment = cmd == BC_INCREFS || cmd == BC_ACQUIRE;
+ struct binder_ref_data rdata;
if (get_user(target, (uint32_t __user *)ptr))
return -EFAULT;
+
ptr += sizeof(uint32_t);
- if (target == 0 && context->binder_context_mgr_node &&
- (cmd == BC_INCREFS || cmd == BC_ACQUIRE)) {
- ref = binder_get_ref_for_node(proc,
- context->binder_context_mgr_node);
- if (ref->desc != target) {
- binder_user_error("%d:%d tried to acquire reference to desc 0, got %d instead\n",
- proc->pid, thread->pid,
- ref->desc);
- }
- } else
- ref = binder_get_ref(proc, target,
- cmd == BC_ACQUIRE ||
- cmd == BC_RELEASE);
- if (ref == NULL) {
- binder_user_error("%d:%d refcount change on invalid ref %d\n",
- proc->pid, thread->pid, target);
- break;
+ ret = -1;
+ if (increment && !target) {
+ struct binder_node *ctx_mgr_node;
+ mutex_lock(&context->context_mgr_node_lock);
+ ctx_mgr_node = context->binder_context_mgr_node;
+ if (ctx_mgr_node)
+ ret = binder_inc_ref_for_node(
+ proc, ctx_mgr_node,
+ strong, NULL, &rdata);
+ mutex_unlock(&context->context_mgr_node_lock);
+ }
+ if (ret)
+ ret = binder_update_ref_for_handle(
+ proc, target, increment, strong,
+ &rdata);
+ if (!ret && rdata.desc != target) {
+ binder_user_error("%d:%d tried to acquire reference to desc %d, got %d instead\n",
+ proc->pid, thread->pid,
+ target, rdata.desc);
}
switch (cmd) {
case BC_INCREFS:
debug_string = "IncRefs";
- binder_inc_ref(ref, 0, NULL);
break;
case BC_ACQUIRE:
debug_string = "Acquire";
- binder_inc_ref(ref, 1, NULL);
break;
case BC_RELEASE:
debug_string = "Release";
- binder_dec_ref(ref, 1);
break;
case BC_DECREFS:
default:
debug_string = "DecRefs";
- binder_dec_ref(ref, 0);
+ break;
+ }
+ if (ret) {
+ binder_user_error("%d:%d %s %d refcount change on invalid ref %d ret %d\n",
+ proc->pid, thread->pid, debug_string,
+ strong, target, ret);
break;
}
binder_debug(BINDER_DEBUG_USER_REFS,
- "%d:%d %s ref %d desc %d s %d w %d for node %d\n",
- proc->pid, thread->pid, debug_string, ref->debug_id,
- ref->desc, ref->strong, ref->weak, ref->node->debug_id);
+ "%d:%d %s ref %d desc %d s %d w %d\n",
+ proc->pid, thread->pid, debug_string,
+ rdata.debug_id, rdata.desc, rdata.strong,
+ rdata.weak);
break;
}
case BC_INCREFS_DONE:
@@ -2326,6 +3280,7 @@ static int binder_thread_write(struct binder_proc *proc,
binder_uintptr_t node_ptr;
binder_uintptr_t cookie;
struct binder_node *node;
+ bool free_node;
if (get_user(node_ptr, (binder_uintptr_t __user *)ptr))
return -EFAULT;
@@ -2350,13 +3305,17 @@ static int binder_thread_write(struct binder_proc *proc,
"BC_INCREFS_DONE" : "BC_ACQUIRE_DONE",
(u64)node_ptr, node->debug_id,
(u64)cookie, (u64)node->cookie);
+ binder_put_node(node);
break;
}
+ binder_node_inner_lock(node);
if (cmd == BC_ACQUIRE_DONE) {
if (node->pending_strong_ref == 0) {
binder_user_error("%d:%d BC_ACQUIRE_DONE node %d has no pending acquire request\n",
proc->pid, thread->pid,
node->debug_id);
+ binder_node_inner_unlock(node);
+ binder_put_node(node);
break;
}
node->pending_strong_ref = 0;
@@ -2365,16 +3324,23 @@ static int binder_thread_write(struct binder_proc *proc,
binder_user_error("%d:%d BC_INCREFS_DONE node %d has no pending increfs request\n",
proc->pid, thread->pid,
node->debug_id);
+ binder_node_inner_unlock(node);
+ binder_put_node(node);
break;
}
node->pending_weak_ref = 0;
}
- binder_dec_node(node, cmd == BC_ACQUIRE_DONE, 0);
+ free_node = binder_dec_node_nilocked(node,
+ cmd == BC_ACQUIRE_DONE, 0);
+ WARN_ON(free_node);
binder_debug(BINDER_DEBUG_USER_REFS,
- "%d:%d %s node %d ls %d lw %d\n",
+ "%d:%d %s node %d ls %d lw %d tr %d\n",
proc->pid, thread->pid,
cmd == BC_INCREFS_DONE ? "BC_INCREFS_DONE" : "BC_ACQUIRE_DONE",
- node->debug_id, node->local_strong_refs, node->local_weak_refs);
+ node->debug_id, node->local_strong_refs,
+ node->local_weak_refs, node->tmp_refs);
+ binder_node_inner_unlock(node);
+ binder_put_node(node);
break;
}
case BC_ATTEMPT_ACQUIRE:
@@ -2392,7 +3358,8 @@ static int binder_thread_write(struct binder_proc *proc,
return -EFAULT;
ptr += sizeof(binder_uintptr_t);
- buffer = binder_buffer_lookup(proc, data_ptr);
+ buffer = binder_alloc_prepare_to_free(&proc->alloc,
+ data_ptr);
if (buffer == NULL) {
binder_user_error("%d:%d BC_FREE_BUFFER u%016llx no match\n",
proc->pid, thread->pid, (u64)data_ptr);
@@ -2414,15 +3381,27 @@ static int binder_thread_write(struct binder_proc *proc,
buffer->transaction = NULL;
}
if (buffer->async_transaction && buffer->target_node) {
- BUG_ON(!buffer->target_node->has_async_transaction);
- if (list_empty(&buffer->target_node->async_todo))
- buffer->target_node->has_async_transaction = 0;
- else
- list_move_tail(buffer->target_node->async_todo.next, &thread->todo);
+ struct binder_node *buf_node;
+ struct binder_work *w;
+
+ buf_node = buffer->target_node;
+ binder_node_inner_lock(buf_node);
+ BUG_ON(!buf_node->has_async_transaction);
+ BUG_ON(buf_node->proc != proc);
+ w = binder_dequeue_work_head_ilocked(
+ &buf_node->async_todo);
+ if (!w) {
+ buf_node->has_async_transaction = 0;
+ } else {
+ binder_enqueue_work_ilocked(
+ w, &proc->todo);
+ binder_wakeup_proc_ilocked(proc);
+ }
+ binder_node_inner_unlock(buf_node);
}
trace_binder_transaction_buffer_release(buffer);
binder_transaction_buffer_release(proc, buffer, NULL);
- binder_free_buf(proc, buffer);
+ binder_alloc_free_buf(&proc->alloc, buffer);
break;
}
@@ -2453,6 +3432,7 @@ static int binder_thread_write(struct binder_proc *proc,
binder_debug(BINDER_DEBUG_THREADS,
"%d:%d BC_REGISTER_LOOPER\n",
proc->pid, thread->pid);
+ binder_inner_proc_lock(proc);
if (thread->looper & BINDER_LOOPER_STATE_ENTERED) {
thread->looper |= BINDER_LOOPER_STATE_INVALID;
binder_user_error("%d:%d ERROR: BC_REGISTER_LOOPER called after BC_ENTER_LOOPER\n",
@@ -2466,6 +3446,7 @@ static int binder_thread_write(struct binder_proc *proc,
proc->requested_threads_started++;
}
thread->looper |= BINDER_LOOPER_STATE_REGISTERED;
+ binder_inner_proc_unlock(proc);
break;
case BC_ENTER_LOOPER:
binder_debug(BINDER_DEBUG_THREADS,
@@ -2490,7 +3471,7 @@ static int binder_thread_write(struct binder_proc *proc,
uint32_t target;
binder_uintptr_t cookie;
struct binder_ref *ref;
- struct binder_ref_death *death;
+ struct binder_ref_death *death = NULL;
if (get_user(target, (uint32_t __user *)ptr))
return -EFAULT;
@@ -2498,7 +3479,29 @@ static int binder_thread_write(struct binder_proc *proc,
if (get_user(cookie, (binder_uintptr_t __user *)ptr))
return -EFAULT;
ptr += sizeof(binder_uintptr_t);
- ref = binder_get_ref(proc, target, false);
+ if (cmd == BC_REQUEST_DEATH_NOTIFICATION) {
+ /*
+ * Allocate memory for death notification
+ * before taking lock
+ */
+ death = kzalloc(sizeof(*death), GFP_KERNEL);
+ if (death == NULL) {
+ WARN_ON(thread->return_error.cmd !=
+ BR_OK);
+ thread->return_error.cmd = BR_ERROR;
+ binder_enqueue_work(
+ thread->proc,
+ &thread->return_error.work,
+ &thread->todo);
+ binder_debug(
+ BINDER_DEBUG_FAILED_TRANSACTION,
+ "%d:%d BC_REQUEST_DEATH_NOTIFICATION failed\n",
+ proc->pid, thread->pid);
+ break;
+ }
+ }
+ binder_proc_lock(proc);
+ ref = binder_get_ref_olocked(proc, target, false);
if (ref == NULL) {
binder_user_error("%d:%d %s invalid ref %d\n",
proc->pid, thread->pid,
@@ -2506,6 +3509,8 @@ static int binder_thread_write(struct binder_proc *proc,
"BC_REQUEST_DEATH_NOTIFICATION" :
"BC_CLEAR_DEATH_NOTIFICATION",
target);
+ binder_proc_unlock(proc);
+ kfree(death);
break;
}
@@ -2515,21 +3520,18 @@ static int binder_thread_write(struct binder_proc *proc,
cmd == BC_REQUEST_DEATH_NOTIFICATION ?
"BC_REQUEST_DEATH_NOTIFICATION" :
"BC_CLEAR_DEATH_NOTIFICATION",
- (u64)cookie, ref->debug_id, ref->desc,
- ref->strong, ref->weak, ref->node->debug_id);
+ (u64)cookie, ref->data.debug_id,
+ ref->data.desc, ref->data.strong,
+ ref->data.weak, ref->node->debug_id);
+ binder_node_lock(ref->node);
if (cmd == BC_REQUEST_DEATH_NOTIFICATION) {
if (ref->death) {
binder_user_error("%d:%d BC_REQUEST_DEATH_NOTIFICATION death notification already set\n",
proc->pid, thread->pid);
- break;
- }
- death = kzalloc(sizeof(*death), GFP_KERNEL);
- if (death == NULL) {
- thread->return_error = BR_ERROR;
- binder_debug(BINDER_DEBUG_FAILED_TRANSACTION,
- "%d:%d BC_REQUEST_DEATH_NOTIFICATION failed\n",
- proc->pid, thread->pid);
+ binder_node_unlock(ref->node);
+ binder_proc_unlock(proc);
+ kfree(death);
break;
}
binder_stats_created(BINDER_STAT_DEATH);
@@ -2538,17 +3540,19 @@ static int binder_thread_write(struct binder_proc *proc,
ref->death = death;
if (ref->node->proc == NULL) {
ref->death->work.type = BINDER_WORK_DEAD_BINDER;
- if (thread->looper & (BINDER_LOOPER_STATE_REGISTERED | BINDER_LOOPER_STATE_ENTERED)) {
- list_add_tail(&ref->death->work.entry, &thread->todo);
- } else {
- list_add_tail(&ref->death->work.entry, &proc->todo);
- wake_up_interruptible(&proc->wait);
- }
+
+ binder_inner_proc_lock(proc);
+ binder_enqueue_work_ilocked(
+ &ref->death->work, &proc->todo);
+ binder_wakeup_proc_ilocked(proc);
+ binder_inner_proc_unlock(proc);
}
} else {
if (ref->death == NULL) {
binder_user_error("%d:%d BC_CLEAR_DEATH_NOTIFICATION death notification not active\n",
proc->pid, thread->pid);
+ binder_node_unlock(ref->node);
+ binder_proc_unlock(proc);
break;
}
death = ref->death;
@@ -2557,22 +3561,35 @@ static int binder_thread_write(struct binder_proc *proc,
proc->pid, thread->pid,
(u64)death->cookie,
(u64)cookie);
+ binder_node_unlock(ref->node);
+ binder_proc_unlock(proc);
break;
}
ref->death = NULL;
+ binder_inner_proc_lock(proc);
if (list_empty(&death->work.entry)) {
death->work.type = BINDER_WORK_CLEAR_DEATH_NOTIFICATION;
- if (thread->looper & (BINDER_LOOPER_STATE_REGISTERED | BINDER_LOOPER_STATE_ENTERED)) {
- list_add_tail(&death->work.entry, &thread->todo);
- } else {
- list_add_tail(&death->work.entry, &proc->todo);
- wake_up_interruptible(&proc->wait);
+ if (thread->looper &
+ (BINDER_LOOPER_STATE_REGISTERED |
+ BINDER_LOOPER_STATE_ENTERED))
+ binder_enqueue_work_ilocked(
+ &death->work,
+ &thread->todo);
+ else {
+ binder_enqueue_work_ilocked(
+ &death->work,
+ &proc->todo);
+ binder_wakeup_proc_ilocked(
+ proc);
}
} else {
BUG_ON(death->work.type != BINDER_WORK_DEAD_BINDER);
death->work.type = BINDER_WORK_DEAD_BINDER_AND_CLEAR;
}
+ binder_inner_proc_unlock(proc);
}
+ binder_node_unlock(ref->node);
+ binder_proc_unlock(proc);
} break;
case BC_DEAD_BINDER_DONE: {
struct binder_work *w;
@@ -2583,8 +3600,13 @@ static int binder_thread_write(struct binder_proc *proc,
return -EFAULT;
ptr += sizeof(cookie);
- list_for_each_entry(w, &proc->delivered_death, entry) {
- struct binder_ref_death *tmp_death = container_of(w, struct binder_ref_death, work);
+ binder_inner_proc_lock(proc);
+ list_for_each_entry(w, &proc->delivered_death,
+ entry) {
+ struct binder_ref_death *tmp_death =
+ container_of(w,
+ struct binder_ref_death,
+ work);
if (tmp_death->cookie == cookie) {
death = tmp_death;
@@ -2598,19 +3620,25 @@ static int binder_thread_write(struct binder_proc *proc,
if (death == NULL) {
binder_user_error("%d:%d BC_DEAD_BINDER_DONE %016llx not found\n",
proc->pid, thread->pid, (u64)cookie);
+ binder_inner_proc_unlock(proc);
break;
}
-
- list_del_init(&death->work.entry);
+ binder_dequeue_work_ilocked(&death->work);
if (death->work.type == BINDER_WORK_DEAD_BINDER_AND_CLEAR) {
death->work.type = BINDER_WORK_CLEAR_DEATH_NOTIFICATION;
- if (thread->looper & (BINDER_LOOPER_STATE_REGISTERED | BINDER_LOOPER_STATE_ENTERED)) {
- list_add_tail(&death->work.entry, &thread->todo);
- } else {
- list_add_tail(&death->work.entry, &proc->todo);
- wake_up_interruptible(&proc->wait);
+ if (thread->looper &
+ (BINDER_LOOPER_STATE_REGISTERED |
+ BINDER_LOOPER_STATE_ENTERED))
+ binder_enqueue_work_ilocked(
+ &death->work, &thread->todo);
+ else {
+ binder_enqueue_work_ilocked(
+ &death->work,
+ &proc->todo);
+ binder_wakeup_proc_ilocked(proc);
}
}
+ binder_inner_proc_unlock(proc);
} break;
default:
@@ -2628,23 +3656,79 @@ static void binder_stat_br(struct binder_proc *proc,
{
trace_binder_return(cmd);
if (_IOC_NR(cmd) < ARRAY_SIZE(binder_stats.br)) {
- binder_stats.br[_IOC_NR(cmd)]++;
- proc->stats.br[_IOC_NR(cmd)]++;
- thread->stats.br[_IOC_NR(cmd)]++;
+ atomic_inc(&binder_stats.br[_IOC_NR(cmd)]);
+ atomic_inc(&proc->stats.br[_IOC_NR(cmd)]);
+ atomic_inc(&thread->stats.br[_IOC_NR(cmd)]);
}
}
-static int binder_has_proc_work(struct binder_proc *proc,
- struct binder_thread *thread)
+static int binder_has_thread_work(struct binder_thread *thread)
{
- return !list_empty(&proc->todo) ||
- (thread->looper & BINDER_LOOPER_STATE_NEED_RETURN);
+ return !binder_worklist_empty(thread->proc, &thread->todo) ||
+ thread->looper_need_return;
}
-static int binder_has_thread_work(struct binder_thread *thread)
+static int binder_put_node_cmd(struct binder_proc *proc,
+ struct binder_thread *thread,
+ void __user **ptrp,
+ binder_uintptr_t node_ptr,
+ binder_uintptr_t node_cookie,
+ int node_debug_id,
+ uint32_t cmd, const char *cmd_name)
{
- return !list_empty(&thread->todo) || thread->return_error != BR_OK ||
- (thread->looper & BINDER_LOOPER_STATE_NEED_RETURN);
+ void __user *ptr = *ptrp;
+
+ if (put_user(cmd, (uint32_t __user *)ptr))
+ return -EFAULT;
+ ptr += sizeof(uint32_t);
+
+ if (put_user(node_ptr, (binder_uintptr_t __user *)ptr))
+ return -EFAULT;
+ ptr += sizeof(binder_uintptr_t);
+
+ if (put_user(node_cookie, (binder_uintptr_t __user *)ptr))
+ return -EFAULT;
+ ptr += sizeof(binder_uintptr_t);
+
+ binder_stat_br(proc, thread, cmd);
+ binder_debug(BINDER_DEBUG_USER_REFS, "%d:%d %s %d u%016llx c%016llx\n",
+ proc->pid, thread->pid, cmd_name, node_debug_id,
+ (u64)node_ptr, (u64)node_cookie);
+
+ *ptrp = ptr;
+ return 0;
+}
+
+static int binder_wait_for_work(struct binder_thread *thread,
+ bool do_proc_work)
+{
+ DEFINE_WAIT(wait);
+ struct binder_proc *proc = thread->proc;
+ int ret = 0;
+
+ freezer_do_not_count();
+ binder_inner_proc_lock(proc);
+ for (;;) {
+ prepare_to_wait(&thread->wait, &wait, TASK_INTERRUPTIBLE);
+ if (binder_has_work_ilocked(thread, do_proc_work))
+ break;
+ if (do_proc_work)
+ list_add(&thread->waiting_thread_node,
+ &proc->waiting_threads);
+ binder_inner_proc_unlock(proc);
+ schedule();
+ binder_inner_proc_lock(proc);
+ list_del_init(&thread->waiting_thread_node);
+ if (signal_pending(current)) {
+ ret = -ERESTARTSYS;
+ break;
+ }
+ }
+ finish_wait(&thread->wait, &wait);
+ binder_inner_proc_unlock(proc);
+ freezer_count();
+
+ return ret;
}
static int binder_thread_read(struct binder_proc *proc,
@@ -2666,37 +3750,15 @@ static int binder_thread_read(struct binder_proc *proc,
}
retry:
- wait_for_proc_work = thread->transaction_stack == NULL &&
- list_empty(&thread->todo);
-
- if (thread->return_error != BR_OK && ptr < end) {
- if (thread->return_error2 != BR_OK) {
- if (put_user(thread->return_error2, (uint32_t __user *)ptr))
- return -EFAULT;
- ptr += sizeof(uint32_t);
- binder_stat_br(proc, thread, thread->return_error2);
- if (ptr == end)
- goto done;
- thread->return_error2 = BR_OK;
- }
- if (put_user(thread->return_error, (uint32_t __user *)ptr))
- return -EFAULT;
- ptr += sizeof(uint32_t);
- binder_stat_br(proc, thread, thread->return_error);
- thread->return_error = BR_OK;
- goto done;
- }
-
+ binder_inner_proc_lock(proc);
+ wait_for_proc_work = binder_available_for_proc_work_ilocked(thread);
+ binder_inner_proc_unlock(proc);
thread->looper |= BINDER_LOOPER_STATE_WAITING;
- if (wait_for_proc_work)
- proc->ready_threads++;
-
- binder_unlock(__func__);
trace_binder_wait_for_work(wait_for_proc_work,
!!thread->transaction_stack,
- !list_empty(&thread->todo));
+ !binder_worklist_empty(proc, &thread->todo));
if (wait_for_proc_work) {
if (!(thread->looper & (BINDER_LOOPER_STATE_REGISTERED |
BINDER_LOOPER_STATE_ENTERED))) {
@@ -2706,23 +3768,15 @@ retry:
binder_stop_on_user_error < 2);
}
binder_set_nice(proc->default_priority);
- if (non_block) {
- if (!binder_has_proc_work(proc, thread))
- ret = -EAGAIN;
- } else
- ret = wait_event_freezable_exclusive(proc->wait, binder_has_proc_work(proc, thread));
- } else {
- if (non_block) {
- if (!binder_has_thread_work(thread))
- ret = -EAGAIN;
- } else
- ret = wait_event_freezable(thread->wait, binder_has_thread_work(thread));
}
- binder_lock(__func__);
+ if (non_block) {
+ if (!binder_has_work(thread, wait_for_proc_work))
+ ret = -EAGAIN;
+ } else {
+ ret = binder_wait_for_work(thread, wait_for_proc_work);
+ }
- if (wait_for_proc_work)
- proc->ready_threads--;
thread->looper &= ~BINDER_LOOPER_STATE_WAITING;
if (ret)
@@ -2731,31 +3785,52 @@ retry:
while (1) {
uint32_t cmd;
struct binder_transaction_data tr;
- struct binder_work *w;
+ struct binder_work *w = NULL;
+ struct list_head *list = NULL;
struct binder_transaction *t = NULL;
+ struct binder_thread *t_from;
+
+ binder_inner_proc_lock(proc);
+ if (!binder_worklist_empty_ilocked(&thread->todo))
+ list = &thread->todo;
+ else if (!binder_worklist_empty_ilocked(&proc->todo) &&
+ wait_for_proc_work)
+ list = &proc->todo;
+ else {
+ binder_inner_proc_unlock(proc);
- if (!list_empty(&thread->todo)) {
- w = list_first_entry(&thread->todo, struct binder_work,
- entry);
- } else if (!list_empty(&proc->todo) && wait_for_proc_work) {
- w = list_first_entry(&proc->todo, struct binder_work,
- entry);
- } else {
/* no data added */
- if (ptr - buffer == 4 &&
- !(thread->looper & BINDER_LOOPER_STATE_NEED_RETURN))
+ if (ptr - buffer == 4 && !thread->looper_need_return)
goto retry;
break;
}
- if (end - ptr < sizeof(tr) + 4)
+ if (end - ptr < sizeof(tr) + 4) {
+ binder_inner_proc_unlock(proc);
break;
+ }
+ w = binder_dequeue_work_head_ilocked(list);
switch (w->type) {
case BINDER_WORK_TRANSACTION: {
+ binder_inner_proc_unlock(proc);
t = container_of(w, struct binder_transaction, work);
} break;
+ case BINDER_WORK_RETURN_ERROR: {
+ struct binder_error *e = container_of(
+ w, struct binder_error, work);
+
+ WARN_ON(e->cmd == BR_OK);
+ binder_inner_proc_unlock(proc);
+ if (put_user(e->cmd, (uint32_t __user *)ptr))
+ return -EFAULT;
+ e->cmd = BR_OK;
+ ptr += sizeof(uint32_t);
+
+ binder_stat_br(proc, thread, e->cmd);
+ } break;
case BINDER_WORK_TRANSACTION_COMPLETE: {
+ binder_inner_proc_unlock(proc);
cmd = BR_TRANSACTION_COMPLETE;
if (put_user(cmd, (uint32_t __user *)ptr))
return -EFAULT;
@@ -2765,113 +3840,134 @@ retry:
binder_debug(BINDER_DEBUG_TRANSACTION_COMPLETE,
"%d:%d BR_TRANSACTION_COMPLETE\n",
proc->pid, thread->pid);
-
- list_del(&w->entry);
kfree(w);
binder_stats_deleted(BINDER_STAT_TRANSACTION_COMPLETE);
} break;
case BINDER_WORK_NODE: {
struct binder_node *node = container_of(w, struct binder_node, work);
- uint32_t cmd = BR_NOOP;
- const char *cmd_name;
- int strong = node->internal_strong_refs || node->local_strong_refs;
- int weak = !hlist_empty(&node->refs) || node->local_weak_refs || strong;
-
- if (weak && !node->has_weak_ref) {
- cmd = BR_INCREFS;
- cmd_name = "BR_INCREFS";
+ int strong, weak;
+ binder_uintptr_t node_ptr = node->ptr;
+ binder_uintptr_t node_cookie = node->cookie;
+ int node_debug_id = node->debug_id;
+ int has_weak_ref;
+ int has_strong_ref;
+ void __user *orig_ptr = ptr;
+
+ BUG_ON(proc != node->proc);
+ strong = node->internal_strong_refs ||
+ node->local_strong_refs;
+ weak = !hlist_empty(&node->refs) ||
+ node->local_weak_refs ||
+ node->tmp_refs || strong;
+ has_strong_ref = node->has_strong_ref;
+ has_weak_ref = node->has_weak_ref;
+
+ if (weak && !has_weak_ref) {
node->has_weak_ref = 1;
node->pending_weak_ref = 1;
node->local_weak_refs++;
- } else if (strong && !node->has_strong_ref) {
- cmd = BR_ACQUIRE;
- cmd_name = "BR_ACQUIRE";
+ }
+ if (strong && !has_strong_ref) {
node->has_strong_ref = 1;
node->pending_strong_ref = 1;
node->local_strong_refs++;
- } else if (!strong && node->has_strong_ref) {
- cmd = BR_RELEASE;
- cmd_name = "BR_RELEASE";
+ }
+ if (!strong && has_strong_ref)
node->has_strong_ref = 0;
- } else if (!weak && node->has_weak_ref) {
- cmd = BR_DECREFS;
- cmd_name = "BR_DECREFS";
+ if (!weak && has_weak_ref)
node->has_weak_ref = 0;
- }
- if (cmd != BR_NOOP) {
- if (put_user(cmd, (uint32_t __user *)ptr))
- return -EFAULT;
- ptr += sizeof(uint32_t);
- if (put_user(node->ptr,
- (binder_uintptr_t __user *)ptr))
- return -EFAULT;
- ptr += sizeof(binder_uintptr_t);
- if (put_user(node->cookie,
- (binder_uintptr_t __user *)ptr))
- return -EFAULT;
- ptr += sizeof(binder_uintptr_t);
-
- binder_stat_br(proc, thread, cmd);
- binder_debug(BINDER_DEBUG_USER_REFS,
- "%d:%d %s %d u%016llx c%016llx\n",
- proc->pid, thread->pid, cmd_name,
- node->debug_id,
- (u64)node->ptr, (u64)node->cookie);
- } else {
- list_del_init(&w->entry);
- if (!weak && !strong) {
- binder_debug(BINDER_DEBUG_INTERNAL_REFS,
- "%d:%d node %d u%016llx c%016llx deleted\n",
- proc->pid, thread->pid,
- node->debug_id,
- (u64)node->ptr,
- (u64)node->cookie);
- rb_erase(&node->rb_node, &proc->nodes);
- kfree(node);
- binder_stats_deleted(BINDER_STAT_NODE);
- } else {
- binder_debug(BINDER_DEBUG_INTERNAL_REFS,
- "%d:%d node %d u%016llx c%016llx state unchanged\n",
- proc->pid, thread->pid,
- node->debug_id,
- (u64)node->ptr,
- (u64)node->cookie);
- }
- }
+ if (!weak && !strong) {
+ binder_debug(BINDER_DEBUG_INTERNAL_REFS,
+ "%d:%d node %d u%016llx c%016llx deleted\n",
+ proc->pid, thread->pid,
+ node_debug_id,
+ (u64)node_ptr,
+ (u64)node_cookie);
+ rb_erase(&node->rb_node, &proc->nodes);
+ binder_inner_proc_unlock(proc);
+ binder_node_lock(node);
+ /*
+ * Acquire the node lock before freeing the
+ * node to serialize with other threads that
+ * may have been holding the node lock while
+ * decrementing this node (avoids race where
+ * this thread frees while the other thread
+ * is unlocking the node after the final
+ * decrement)
+ */
+ binder_node_unlock(node);
+ binder_free_node(node);
+ } else
+ binder_inner_proc_unlock(proc);
+
+ if (weak && !has_weak_ref)
+ ret = binder_put_node_cmd(
+ proc, thread, &ptr, node_ptr,
+ node_cookie, node_debug_id,
+ BR_INCREFS, "BR_INCREFS");
+ if (!ret && strong && !has_strong_ref)
+ ret = binder_put_node_cmd(
+ proc, thread, &ptr, node_ptr,
+ node_cookie, node_debug_id,
+ BR_ACQUIRE, "BR_ACQUIRE");
+ if (!ret && !strong && has_strong_ref)
+ ret = binder_put_node_cmd(
+ proc, thread, &ptr, node_ptr,
+ node_cookie, node_debug_id,
+ BR_RELEASE, "BR_RELEASE");
+ if (!ret && !weak && has_weak_ref)
+ ret = binder_put_node_cmd(
+ proc, thread, &ptr, node_ptr,
+ node_cookie, node_debug_id,
+ BR_DECREFS, "BR_DECREFS");
+ if (orig_ptr == ptr)
+ binder_debug(BINDER_DEBUG_INTERNAL_REFS,
+ "%d:%d node %d u%016llx c%016llx state unchanged\n",
+ proc->pid, thread->pid,
+ node_debug_id,
+ (u64)node_ptr,
+ (u64)node_cookie);
+ if (ret)
+ return ret;
} break;
case BINDER_WORK_DEAD_BINDER:
case BINDER_WORK_DEAD_BINDER_AND_CLEAR:
case BINDER_WORK_CLEAR_DEATH_NOTIFICATION: {
struct binder_ref_death *death;
uint32_t cmd;
+ binder_uintptr_t cookie;
death = container_of(w, struct binder_ref_death, work);
if (w->type == BINDER_WORK_CLEAR_DEATH_NOTIFICATION)
cmd = BR_CLEAR_DEATH_NOTIFICATION_DONE;
else
cmd = BR_DEAD_BINDER;
- if (put_user(cmd, (uint32_t __user *)ptr))
- return -EFAULT;
- ptr += sizeof(uint32_t);
- if (put_user(death->cookie,
- (binder_uintptr_t __user *)ptr))
- return -EFAULT;
- ptr += sizeof(binder_uintptr_t);
- binder_stat_br(proc, thread, cmd);
+ cookie = death->cookie;
+
binder_debug(BINDER_DEBUG_DEATH_NOTIFICATION,
"%d:%d %s %016llx\n",
proc->pid, thread->pid,
cmd == BR_DEAD_BINDER ?
"BR_DEAD_BINDER" :
"BR_CLEAR_DEATH_NOTIFICATION_DONE",
- (u64)death->cookie);
-
+ (u64)cookie);
if (w->type == BINDER_WORK_CLEAR_DEATH_NOTIFICATION) {
- list_del(&w->entry);
+ binder_inner_proc_unlock(proc);
kfree(death);
binder_stats_deleted(BINDER_STAT_DEATH);
- } else
- list_move(&w->entry, &proc->delivered_death);
+ } else {
+ binder_enqueue_work_ilocked(
+ w, &proc->delivered_death);
+ binder_inner_proc_unlock(proc);
+ }
+ if (put_user(cmd, (uint32_t __user *)ptr))
+ return -EFAULT;
+ ptr += sizeof(uint32_t);
+ if (put_user(cookie,
+ (binder_uintptr_t __user *)ptr))
+ return -EFAULT;
+ ptr += sizeof(binder_uintptr_t);
+ binder_stat_br(proc, thread, cmd);
if (cmd == BR_DEAD_BINDER)
goto done; /* DEAD_BINDER notifications can cause transactions */
} break;
@@ -2903,8 +3999,9 @@ retry:
tr.flags = t->flags;
tr.sender_euid = from_kuid(current_user_ns(), t->sender_euid);
- if (t->from) {
- struct task_struct *sender = t->from->proc->tsk;
+ t_from = binder_get_txn_from(t);
+ if (t_from) {
+ struct task_struct *sender = t_from->proc->tsk;
tr.sender_pid = task_tgid_nr_ns(sender,
task_active_pid_ns(current));
@@ -2914,18 +4011,24 @@ retry:
tr.data_size = t->buffer->data_size;
tr.offsets_size = t->buffer->offsets_size;
- tr.data.ptr.buffer = (binder_uintptr_t)(
- (uintptr_t)t->buffer->data +
- proc->user_buffer_offset);
+ tr.data.ptr.buffer = (binder_uintptr_t)
+ ((uintptr_t)t->buffer->data +
+ binder_alloc_get_user_buffer_offset(&proc->alloc));
tr.data.ptr.offsets = tr.data.ptr.buffer +
ALIGN(t->buffer->data_size,
sizeof(void *));
- if (put_user(cmd, (uint32_t __user *)ptr))
+ if (put_user(cmd, (uint32_t __user *)ptr)) {
+ if (t_from)
+ binder_thread_dec_tmpref(t_from);
return -EFAULT;
+ }
ptr += sizeof(uint32_t);
- if (copy_to_user(ptr, &tr, sizeof(tr)))
+ if (copy_to_user(ptr, &tr, sizeof(tr))) {
+ if (t_from)
+ binder_thread_dec_tmpref(t_from);
return -EFAULT;
+ }
ptr += sizeof(tr);
trace_binder_transaction_received(t);
@@ -2935,21 +4038,22 @@ retry:
proc->pid, thread->pid,
(cmd == BR_TRANSACTION) ? "BR_TRANSACTION" :
"BR_REPLY",
- t->debug_id, t->from ? t->from->proc->pid : 0,
- t->from ? t->from->pid : 0, cmd,
+ t->debug_id, t_from ? t_from->proc->pid : 0,
+ t_from ? t_from->pid : 0, cmd,
t->buffer->data_size, t->buffer->offsets_size,
(u64)tr.data.ptr.buffer, (u64)tr.data.ptr.offsets);
- list_del(&t->work.entry);
+ if (t_from)
+ binder_thread_dec_tmpref(t_from);
t->buffer->allow_user_free = 1;
if (cmd == BR_TRANSACTION && !(t->flags & TF_ONE_WAY)) {
+ binder_inner_proc_lock(thread->proc);
t->to_parent = thread->transaction_stack;
t->to_thread = thread;
thread->transaction_stack = t;
+ binder_inner_proc_unlock(thread->proc);
} else {
- t->buffer->transaction = NULL;
- kfree(t);
- binder_stats_deleted(BINDER_STAT_TRANSACTION);
+ binder_free_transaction(t);
}
break;
}
@@ -2957,29 +4061,36 @@ retry:
done:
*consumed = ptr - buffer;
- if (proc->requested_threads + proc->ready_threads == 0 &&
+ binder_inner_proc_lock(proc);
+ if (proc->requested_threads == 0 &&
+ list_empty(&thread->proc->waiting_threads) &&
proc->requested_threads_started < proc->max_threads &&
(thread->looper & (BINDER_LOOPER_STATE_REGISTERED |
BINDER_LOOPER_STATE_ENTERED)) /* the user-space code fails to */
/*spawn a new thread if we leave this out */) {
proc->requested_threads++;
+ binder_inner_proc_unlock(proc);
binder_debug(BINDER_DEBUG_THREADS,
"%d:%d BR_SPAWN_LOOPER\n",
proc->pid, thread->pid);
if (put_user(BR_SPAWN_LOOPER, (uint32_t __user *)buffer))
return -EFAULT;
binder_stat_br(proc, thread, BR_SPAWN_LOOPER);
- }
+ } else
+ binder_inner_proc_unlock(proc);
return 0;
}
-static void binder_release_work(struct list_head *list)
+static void binder_release_work(struct binder_proc *proc,
+ struct list_head *list)
{
struct binder_work *w;
- while (!list_empty(list)) {
- w = list_first_entry(list, struct binder_work, entry);
- list_del_init(&w->entry);
+ while (1) {
+ w = binder_dequeue_work_head(proc, list);
+ if (!w)
+ return;
+
switch (w->type) {
case BINDER_WORK_TRANSACTION: {
struct binder_transaction *t;
@@ -2992,11 +4103,17 @@ static void binder_release_work(struct list_head *list)
binder_debug(BINDER_DEBUG_DEAD_TRANSACTION,
"undelivered transaction %d\n",
t->debug_id);
- t->buffer->transaction = NULL;
- kfree(t);
- binder_stats_deleted(BINDER_STAT_TRANSACTION);
+ binder_free_transaction(t);
}
} break;
+ case BINDER_WORK_RETURN_ERROR: {
+ struct binder_error *e = container_of(
+ w, struct binder_error, work);
+
+ binder_debug(BINDER_DEBUG_DEAD_TRANSACTION,
+ "undelivered TRANSACTION_ERROR: %u\n",
+ e->cmd);
+ } break;
case BINDER_WORK_TRANSACTION_COMPLETE: {
binder_debug(BINDER_DEBUG_DEAD_TRANSACTION,
"undelivered TRANSACTION_COMPLETE\n");
@@ -3023,7 +4140,8 @@ static void binder_release_work(struct list_head *list)
}
-static struct binder_thread *binder_get_thread(struct binder_proc *proc)
+static struct binder_thread *binder_get_thread_ilocked(
+ struct binder_proc *proc, struct binder_thread *new_thread)
{
struct binder_thread *thread = NULL;
struct rb_node *parent = NULL;
@@ -3038,38 +4156,99 @@ static struct binder_thread *binder_get_thread(struct binder_proc *proc)
else if (current->pid > thread->pid)
p = &(*p)->rb_right;
else
- break;
+ return thread;
}
- if (*p == NULL) {
- thread = kzalloc(sizeof(*thread), GFP_KERNEL);
- if (thread == NULL)
+ if (!new_thread)
+ return NULL;
+ thread = new_thread;
+ binder_stats_created(BINDER_STAT_THREAD);
+ thread->proc = proc;
+ thread->pid = current->pid;
+ atomic_set(&thread->tmp_ref, 0);
+ init_waitqueue_head(&thread->wait);
+ INIT_LIST_HEAD(&thread->todo);
+ rb_link_node(&thread->rb_node, parent, p);
+ rb_insert_color(&thread->rb_node, &proc->threads);
+ thread->looper_need_return = true;
+ thread->return_error.work.type = BINDER_WORK_RETURN_ERROR;
+ thread->return_error.cmd = BR_OK;
+ thread->reply_error.work.type = BINDER_WORK_RETURN_ERROR;
+ thread->reply_error.cmd = BR_OK;
+ INIT_LIST_HEAD(&new_thread->waiting_thread_node);
+ return thread;
+}
+
+static struct binder_thread *binder_get_thread(struct binder_proc *proc)
+{
+ struct binder_thread *thread;
+ struct binder_thread *new_thread;
+
+ binder_inner_proc_lock(proc);
+ thread = binder_get_thread_ilocked(proc, NULL);
+ binder_inner_proc_unlock(proc);
+ if (!thread) {
+ new_thread = kzalloc(sizeof(*thread), GFP_KERNEL);
+ if (new_thread == NULL)
return NULL;
- binder_stats_created(BINDER_STAT_THREAD);
- thread->proc = proc;
- thread->pid = current->pid;
- init_waitqueue_head(&thread->wait);
- INIT_LIST_HEAD(&thread->todo);
- rb_link_node(&thread->rb_node, parent, p);
- rb_insert_color(&thread->rb_node, &proc->threads);
- thread->looper |= BINDER_LOOPER_STATE_NEED_RETURN;
- thread->return_error = BR_OK;
- thread->return_error2 = BR_OK;
+ binder_inner_proc_lock(proc);
+ thread = binder_get_thread_ilocked(proc, new_thread);
+ binder_inner_proc_unlock(proc);
+ if (thread != new_thread)
+ kfree(new_thread);
}
return thread;
}
-static int binder_free_thread(struct binder_proc *proc,
- struct binder_thread *thread)
+static void binder_free_proc(struct binder_proc *proc)
+{
+ BUG_ON(!list_empty(&proc->todo));
+ BUG_ON(!list_empty(&proc->delivered_death));
+ binder_alloc_deferred_release(&proc->alloc);
+ put_task_struct(proc->tsk);
+ binder_stats_deleted(BINDER_STAT_PROC);
+ kfree(proc);
+}
+
+static void binder_free_thread(struct binder_thread *thread)
+{
+ BUG_ON(!list_empty(&thread->todo));
+ binder_stats_deleted(BINDER_STAT_THREAD);
+ binder_proc_dec_tmpref(thread->proc);
+ kfree(thread);
+}
+
+static int binder_thread_release(struct binder_proc *proc,
+ struct binder_thread *thread)
{
struct binder_transaction *t;
struct binder_transaction *send_reply = NULL;
int active_transactions = 0;
+ struct binder_transaction *last_t = NULL;
+ binder_inner_proc_lock(thread->proc);
+ /*
+ * take a ref on the proc so it survives
+ * after we remove this thread from proc->threads.
+ * The corresponding dec is when we actually
+ * free the thread in binder_free_thread()
+ */
+ proc->tmp_ref++;
+ /*
+ * take a ref on this thread to ensure it
+ * survives while we are releasing it
+ */
+ atomic_inc(&thread->tmp_ref);
rb_erase(&thread->rb_node, &proc->threads);
t = thread->transaction_stack;
- if (t && t->to_thread == thread)
- send_reply = t;
+ if (t) {
+ spin_lock(&t->lock);
+ if (t->to_thread == thread)
+ send_reply = t;
+ }
+ thread->is_dead = true;
+
while (t) {
+ last_t = t;
active_transactions++;
binder_debug(BINDER_DEBUG_DEAD_TRANSACTION,
"release %d:%d transaction %d %s, still active\n",
@@ -3090,12 +4269,16 @@ static int binder_free_thread(struct binder_proc *proc,
t = t->from_parent;
} else
BUG();
+ spin_unlock(&last_t->lock);
+ if (t)
+ spin_lock(&t->lock);
}
+ binder_inner_proc_unlock(thread->proc);
+
if (send_reply)
binder_send_failed_reply(send_reply, BR_DEAD_REPLY);
- binder_release_work(&thread->todo);
- kfree(thread);
- binder_stats_deleted(BINDER_STAT_THREAD);
+ binder_release_work(proc, &thread->todo);
+ binder_thread_dec_tmpref(thread);
return active_transactions;
}
@@ -3104,30 +4287,24 @@ static unsigned int binder_poll(struct file *filp,
{
struct binder_proc *proc = filp->private_data;
struct binder_thread *thread = NULL;
- int wait_for_proc_work;
-
- binder_lock(__func__);
+ bool wait_for_proc_work;
thread = binder_get_thread(proc);
- wait_for_proc_work = thread->transaction_stack == NULL &&
- list_empty(&thread->todo) && thread->return_error == BR_OK;
+ binder_inner_proc_lock(thread->proc);
+ thread->looper |= BINDER_LOOPER_STATE_POLL;
+ wait_for_proc_work = binder_available_for_proc_work_ilocked(thread);
- binder_unlock(__func__);
+ binder_inner_proc_unlock(thread->proc);
+
+ if (binder_has_work(thread, wait_for_proc_work))
+ return POLLIN;
+
+ poll_wait(filp, &thread->wait, wait);
+
+ if (binder_has_thread_work(thread))
+ return POLLIN;
- if (wait_for_proc_work) {
- if (binder_has_proc_work(proc, thread))
- return POLLIN;
- poll_wait(filp, &proc->wait, wait);
- if (binder_has_proc_work(proc, thread))
- return POLLIN;
- } else {
- if (binder_has_thread_work(thread))
- return POLLIN;
- poll_wait(filp, &thread->wait, wait);
- if (binder_has_thread_work(thread))
- return POLLIN;
- }
return 0;
}
@@ -3174,8 +4351,10 @@ static int binder_ioctl_write_read(struct file *filp,
&bwr.read_consumed,
filp->f_flags & O_NONBLOCK);
trace_binder_read_done(ret);
- if (!list_empty(&proc->todo))
- wake_up_interruptible(&proc->wait);
+ binder_inner_proc_lock(proc);
+ if (!binder_worklist_empty_ilocked(&proc->todo))
+ binder_wakeup_proc_ilocked(proc);
+ binder_inner_proc_unlock(proc);
if (ret < 0) {
if (copy_to_user(ubuf, &bwr, sizeof(bwr)))
ret = -EFAULT;
@@ -3200,9 +4379,10 @@ static int binder_ioctl_set_ctx_mgr(struct file *filp)
int ret = 0;
struct binder_proc *proc = filp->private_data;
struct binder_context *context = proc->context;
-
+ struct binder_node *new_node;
kuid_t curr_euid = current_euid();
+ mutex_lock(&context->context_mgr_node_lock);
if (context->binder_context_mgr_node) {
pr_err("BINDER_SET_CONTEXT_MGR already set\n");
ret = -EBUSY;
@@ -3223,19 +4403,49 @@ static int binder_ioctl_set_ctx_mgr(struct file *filp)
} else {
context->binder_context_mgr_uid = curr_euid;
}
- context->binder_context_mgr_node = binder_new_node(proc, 0, 0);
- if (!context->binder_context_mgr_node) {
+ new_node = binder_new_node(proc, NULL);
+ if (!new_node) {
ret = -ENOMEM;
goto out;
}
- context->binder_context_mgr_node->local_weak_refs++;
- context->binder_context_mgr_node->local_strong_refs++;
- context->binder_context_mgr_node->has_strong_ref = 1;
- context->binder_context_mgr_node->has_weak_ref = 1;
+ binder_node_lock(new_node);
+ new_node->local_weak_refs++;
+ new_node->local_strong_refs++;
+ new_node->has_strong_ref = 1;
+ new_node->has_weak_ref = 1;
+ context->binder_context_mgr_node = new_node;
+ binder_node_unlock(new_node);
+ binder_put_node(new_node);
out:
+ mutex_unlock(&context->context_mgr_node_lock);
return ret;
}
+static int binder_ioctl_get_node_debug_info(struct binder_proc *proc,
+ struct binder_node_debug_info *info)
+{
+ struct rb_node *n;
+ binder_uintptr_t ptr = info->ptr;
+
+ memset(info, 0, sizeof(*info));
+
+ binder_inner_proc_lock(proc);
+ for (n = rb_first(&proc->nodes); n != NULL; n = rb_next(n)) {
+ struct binder_node *node = rb_entry(n, struct binder_node,
+ rb_node);
+ if (node->ptr > ptr) {
+ info->ptr = node->ptr;
+ info->cookie = node->cookie;
+ info->has_strong_ref = node->has_strong_ref;
+ info->has_weak_ref = node->has_weak_ref;
+ break;
+ }
+ }
+ binder_inner_proc_unlock(proc);
+
+ return 0;
+}
+
static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
int ret;
@@ -3247,17 +4457,14 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
/*pr_info("binder_ioctl: %d:%d %x %lx\n",
proc->pid, current->pid, cmd, arg);*/
- if (unlikely(current->mm != proc->vma_vm_mm)) {
- pr_err("current mm mismatch proc mm\n");
- return -EINVAL;
- }
+ binder_selftest_alloc(&proc->alloc);
+
trace_binder_ioctl(cmd, arg);
ret = wait_event_interruptible(binder_user_error_wait, binder_stop_on_user_error < 2);
if (ret)
goto err_unlocked;
- binder_lock(__func__);
thread = binder_get_thread(proc);
if (thread == NULL) {
ret = -ENOMEM;
@@ -3270,12 +4477,19 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
if (ret)
goto err;
break;
- case BINDER_SET_MAX_THREADS:
- if (copy_from_user(&proc->max_threads, ubuf, sizeof(proc->max_threads))) {
+ case BINDER_SET_MAX_THREADS: {
+ int max_threads;
+
+ if (copy_from_user(&max_threads, ubuf,
+ sizeof(max_threads))) {
ret = -EINVAL;
goto err;
}
+ binder_inner_proc_lock(proc);
+ proc->max_threads = max_threads;
+ binder_inner_proc_unlock(proc);
break;
+ }
case BINDER_SET_CONTEXT_MGR:
ret = binder_ioctl_set_ctx_mgr(filp);
if (ret)
@@ -3284,7 +4498,7 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
case BINDER_THREAD_EXIT:
binder_debug(BINDER_DEBUG_THREADS, "%d:%d exit\n",
proc->pid, thread->pid);
- binder_free_thread(proc, thread);
+ binder_thread_release(proc, thread);
thread = NULL;
break;
case BINDER_VERSION: {
@@ -3301,6 +4515,24 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
}
break;
}
+ case BINDER_GET_NODE_DEBUG_INFO: {
+ struct binder_node_debug_info info;
+
+ if (copy_from_user(&info, ubuf, sizeof(info))) {
+ ret = -EFAULT;
+ goto err;
+ }
+
+ ret = binder_ioctl_get_node_debug_info(proc, &info);
+ if (ret < 0)
+ goto err;
+
+ if (copy_to_user(ubuf, &info, sizeof(info))) {
+ ret = -EFAULT;
+ goto err;
+ }
+ break;
+ }
default:
ret = -EINVAL;
goto err;
@@ -3308,8 +4540,7 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
ret = 0;
err:
if (thread)
- thread->looper &= ~BINDER_LOOPER_STATE_NEED_RETURN;
- binder_unlock(__func__);
+ thread->looper_need_return = false;
wait_event_interruptible(binder_user_error_wait, binder_stop_on_user_error < 2);
if (ret && ret != -ERESTARTSYS)
pr_info("%d:%d ioctl %x %lx returned %d\n", proc->pid, current->pid, cmd, arg, ret);
@@ -3338,8 +4569,7 @@ static void binder_vma_close(struct vm_area_struct *vma)
proc->pid, vma->vm_start, vma->vm_end,
(vma->vm_end - vma->vm_start) / SZ_1K, vma->vm_flags,
(unsigned long)pgprot_val(vma->vm_page_prot));
- proc->vma = NULL;
- proc->vma_vm_mm = NULL;
+ binder_alloc_vma_close(&proc->alloc);
binder_defer_work(proc, BINDER_DEFERRED_PUT_FILES);
}
@@ -3357,20 +4587,18 @@ static const struct vm_operations_struct binder_vm_ops = {
static int binder_mmap(struct file *filp, struct vm_area_struct *vma)
{
int ret;
- struct vm_struct *area;
struct binder_proc *proc = filp->private_data;
const char *failure_string;
- struct binder_buffer *buffer;
- if (proc->tsk != current)
+ if (proc->tsk != current->group_leader)
return -EINVAL;
if ((vma->vm_end - vma->vm_start) > SZ_4M)
vma->vm_end = vma->vm_start + SZ_4M;
binder_debug(BINDER_DEBUG_OPEN_CLOSE,
- "binder_mmap: %d %lx-%lx (%ld K) vma %lx pagep %lx\n",
- proc->pid, vma->vm_start, vma->vm_end,
+ "%s: %d %lx-%lx (%ld K) vma %lx pagep %lx\n",
+ __func__, proc->pid, vma->vm_start, vma->vm_end,
(vma->vm_end - vma->vm_start) / SZ_1K, vma->vm_flags,
(unsigned long)pgprot_val(vma->vm_page_prot));
@@ -3380,73 +4608,15 @@ static int binder_mmap(struct file *filp, struct vm_area_struct *vma)
goto err_bad_arg;
}
vma->vm_flags = (vma->vm_flags | VM_DONTCOPY) & ~VM_MAYWRITE;
-
- mutex_lock(&binder_mmap_lock);
- if (proc->buffer) {
- ret = -EBUSY;
- failure_string = "already mapped";
- goto err_already_mapped;
- }
-
- area = get_vm_area(vma->vm_end - vma->vm_start, VM_IOREMAP);
- if (area == NULL) {
- ret = -ENOMEM;
- failure_string = "get_vm_area";
- goto err_get_vm_area_failed;
- }
- proc->buffer = area->addr;
- proc->user_buffer_offset = vma->vm_start - (uintptr_t)proc->buffer;
- mutex_unlock(&binder_mmap_lock);
-
-#ifdef CONFIG_CPU_CACHE_VIPT
- if (cache_is_vipt_aliasing()) {
- while (CACHE_COLOUR((vma->vm_start ^ (uint32_t)proc->buffer))) {
- pr_info("binder_mmap: %d %lx-%lx maps %p bad alignment\n", proc->pid, vma->vm_start, vma->vm_end, proc->buffer);
- vma->vm_start += PAGE_SIZE;
- }
- }
-#endif
- proc->pages = kzalloc(sizeof(proc->pages[0]) * ((vma->vm_end - vma->vm_start) / PAGE_SIZE), GFP_KERNEL);
- if (proc->pages == NULL) {
- ret = -ENOMEM;
- failure_string = "alloc page array";
- goto err_alloc_pages_failed;
- }
- proc->buffer_size = vma->vm_end - vma->vm_start;
-
vma->vm_ops = &binder_vm_ops;
vma->vm_private_data = proc;
- if (binder_update_page_range(proc, 1, proc->buffer, proc->buffer + PAGE_SIZE, vma)) {
- ret = -ENOMEM;
- failure_string = "alloc small buf";
- goto err_alloc_small_buf_failed;
- }
- buffer = proc->buffer;
- INIT_LIST_HEAD(&proc->buffers);
- list_add(&buffer->entry, &proc->buffers);
- buffer->free = 1;
- binder_insert_free_buffer(proc, buffer);
- proc->free_async_space = proc->buffer_size / 2;
- barrier();
+ ret = binder_alloc_mmap_handler(&proc->alloc, vma);
+ if (ret)
+ return ret;
proc->files = get_files_struct(current);
- proc->vma = vma;
- proc->vma_vm_mm = vma->vm_mm;
-
- /*pr_info("binder_mmap: %d %lx-%lx maps %p\n",
- proc->pid, vma->vm_start, vma->vm_end, proc->buffer);*/
return 0;
-err_alloc_small_buf_failed:
- kfree(proc->pages);
- proc->pages = NULL;
-err_alloc_pages_failed:
- mutex_lock(&binder_mmap_lock);
- vfree(proc->buffer);
- proc->buffer = NULL;
-err_get_vm_area_failed:
-err_already_mapped:
- mutex_unlock(&binder_mmap_lock);
err_bad_arg:
pr_err("binder_mmap: %d %lx-%lx %s failed %d\n",
proc->pid, vma->vm_start, vma->vm_end, failure_string, ret);
@@ -3464,25 +4634,26 @@ static int binder_open(struct inode *nodp, struct file *filp)
proc = kzalloc(sizeof(*proc), GFP_KERNEL);
if (proc == NULL)
return -ENOMEM;
- get_task_struct(current);
- proc->tsk = current;
- proc->vma_vm_mm = current->mm;
+ spin_lock_init(&proc->inner_lock);
+ spin_lock_init(&proc->outer_lock);
+ get_task_struct(current->group_leader);
+ proc->tsk = current->group_leader;
INIT_LIST_HEAD(&proc->todo);
- init_waitqueue_head(&proc->wait);
proc->default_priority = task_nice(current);
binder_dev = container_of(filp->private_data, struct binder_device,
miscdev);
proc->context = &binder_dev->context;
-
- binder_lock(__func__);
+ binder_alloc_init(&proc->alloc);
binder_stats_created(BINDER_STAT_PROC);
- hlist_add_head(&proc->proc_node, &binder_procs);
proc->pid = current->group_leader->pid;
INIT_LIST_HEAD(&proc->delivered_death);
+ INIT_LIST_HEAD(&proc->waiting_threads);
filp->private_data = proc;
- binder_unlock(__func__);
+ mutex_lock(&binder_procs_lock);
+ hlist_add_head(&proc->proc_node, &binder_procs);
+ mutex_unlock(&binder_procs_lock);
if (binder_debugfs_dir_entry_proc) {
char strbuf[11];
@@ -3518,16 +4689,17 @@ static void binder_deferred_flush(struct binder_proc *proc)
struct rb_node *n;
int wake_count = 0;
+ binder_inner_proc_lock(proc);
for (n = rb_first(&proc->threads); n != NULL; n = rb_next(n)) {
struct binder_thread *thread = rb_entry(n, struct binder_thread, rb_node);
- thread->looper |= BINDER_LOOPER_STATE_NEED_RETURN;
+ thread->looper_need_return = true;
if (thread->looper & BINDER_LOOPER_STATE_WAITING) {
wake_up_interruptible(&thread->wait);
wake_count++;
}
}
- wake_up_interruptible_all(&proc->wait);
+ binder_inner_proc_unlock(proc);
binder_debug(BINDER_DEBUG_OPEN_CLOSE,
"binder_flush: %d woke %d threads\n", proc->pid,
@@ -3548,13 +4720,21 @@ static int binder_node_release(struct binder_node *node, int refs)
{
struct binder_ref *ref;
int death = 0;
+ struct binder_proc *proc = node->proc;
- list_del_init(&node->work.entry);
- binder_release_work(&node->async_todo);
+ binder_release_work(proc, &node->async_todo);
- if (hlist_empty(&node->refs)) {
- kfree(node);
- binder_stats_deleted(BINDER_STAT_NODE);
+ binder_node_lock(node);
+ binder_inner_proc_lock(proc);
+ binder_dequeue_work_ilocked(&node->work);
+ /*
+ * The caller must have taken a temporary ref on the node,
+ */
+ BUG_ON(!node->tmp_refs);
+ if (hlist_empty(&node->refs) && node->tmp_refs == 1) {
+ binder_inner_proc_unlock(proc);
+ binder_node_unlock(node);
+ binder_free_node(node);
return refs;
}
@@ -3562,45 +4742,58 @@ static int binder_node_release(struct binder_node *node, int refs)
node->proc = NULL;
node->local_strong_refs = 0;
node->local_weak_refs = 0;
+ binder_inner_proc_unlock(proc);
+
+ spin_lock(&binder_dead_nodes_lock);
hlist_add_head(&node->dead_node, &binder_dead_nodes);
+ spin_unlock(&binder_dead_nodes_lock);
hlist_for_each_entry(ref, &node->refs, node_entry) {
refs++;
-
- if (!ref->death)
+ /*
+ * Need the node lock to synchronize
+ * with new notification requests and the
+ * inner lock to synchronize with queued
+ * death notifications.
+ */
+ binder_inner_proc_lock(ref->proc);
+ if (!ref->death) {
+ binder_inner_proc_unlock(ref->proc);
continue;
+ }
death++;
- if (list_empty(&ref->death->work.entry)) {
- ref->death->work.type = BINDER_WORK_DEAD_BINDER;
- list_add_tail(&ref->death->work.entry,
- &ref->proc->todo);
- wake_up_interruptible(&ref->proc->wait);
- } else
- BUG();
+ BUG_ON(!list_empty(&ref->death->work.entry));
+ ref->death->work.type = BINDER_WORK_DEAD_BINDER;
+ binder_enqueue_work_ilocked(&ref->death->work,
+ &ref->proc->todo);
+ binder_wakeup_proc_ilocked(ref->proc);
+ binder_inner_proc_unlock(ref->proc);
}
binder_debug(BINDER_DEBUG_DEAD_BINDER,
"node %d now dead, refs %d, death %d\n",
node->debug_id, refs, death);
+ binder_node_unlock(node);
+ binder_put_node(node);
return refs;
}
static void binder_deferred_release(struct binder_proc *proc)
{
- struct binder_transaction *t;
struct binder_context *context = proc->context;
struct rb_node *n;
- int threads, nodes, incoming_refs, outgoing_refs, buffers,
- active_transactions, page_count;
+ int threads, nodes, incoming_refs, outgoing_refs, active_transactions;
- BUG_ON(proc->vma);
BUG_ON(proc->files);
+ mutex_lock(&binder_procs_lock);
hlist_del(&proc->proc_node);
+ mutex_unlock(&binder_procs_lock);
+ mutex_lock(&context->context_mgr_node_lock);
if (context->binder_context_mgr_node &&
context->binder_context_mgr_node->proc == proc) {
binder_debug(BINDER_DEBUG_DEAD_BINDER,
@@ -3608,15 +4801,25 @@ static void binder_deferred_release(struct binder_proc *proc)
__func__, proc->pid);
context->binder_context_mgr_node = NULL;
}
+ mutex_unlock(&context->context_mgr_node_lock);
+ binder_inner_proc_lock(proc);
+ /*
+ * Make sure proc stays alive after we
+ * remove all the threads
+ */
+ proc->tmp_ref++;
+ proc->is_dead = true;
threads = 0;
active_transactions = 0;
while ((n = rb_first(&proc->threads))) {
struct binder_thread *thread;
thread = rb_entry(n, struct binder_thread, rb_node);
+ binder_inner_proc_unlock(proc);
threads++;
- active_transactions += binder_free_thread(proc, thread);
+ active_transactions += binder_thread_release(proc, thread);
+ binder_inner_proc_lock(proc);
}
nodes = 0;
@@ -3626,73 +4829,42 @@ static void binder_deferred_release(struct binder_proc *proc)
node = rb_entry(n, struct binder_node, rb_node);
nodes++;
+ /*
+ * take a temporary ref on the node before
+ * calling binder_node_release() which will either
+ * kfree() the node or call binder_put_node()
+ */
+ binder_inc_node_tmpref_ilocked(node);
rb_erase(&node->rb_node, &proc->nodes);
+ binder_inner_proc_unlock(proc);
incoming_refs = binder_node_release(node, incoming_refs);
+ binder_inner_proc_lock(proc);
}
+ binder_inner_proc_unlock(proc);
outgoing_refs = 0;
+ binder_proc_lock(proc);
while ((n = rb_first(&proc->refs_by_desc))) {
struct binder_ref *ref;
ref = rb_entry(n, struct binder_ref, rb_node_desc);
outgoing_refs++;
- binder_delete_ref(ref);
- }
-
- binder_release_work(&proc->todo);
- binder_release_work(&proc->delivered_death);
-
- buffers = 0;
- while ((n = rb_first(&proc->allocated_buffers))) {
- struct binder_buffer *buffer;
-
- buffer = rb_entry(n, struct binder_buffer, rb_node);
-
- t = buffer->transaction;
- if (t) {
- t->buffer = NULL;
- buffer->transaction = NULL;
- pr_err("release proc %d, transaction %d, not freed\n",
- proc->pid, t->debug_id);
- /*BUG();*/
- }
-
- binder_free_buf(proc, buffer);
- buffers++;
- }
-
- binder_stats_deleted(BINDER_STAT_PROC);
-
- page_count = 0;
- if (proc->pages) {
- int i;
-
- for (i = 0; i < proc->buffer_size / PAGE_SIZE; i++) {
- void *page_addr;
-
- if (!proc->pages[i])
- continue;
-
- page_addr = proc->buffer + i * PAGE_SIZE;
- binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
- "%s: %d: page %d at %p not freed\n",
- __func__, proc->pid, i, page_addr);
- unmap_kernel_range((unsigned long)page_addr, PAGE_SIZE);
- __free_page(proc->pages[i]);
- page_count++;
- }
- kfree(proc->pages);
- vfree(proc->buffer);
+ binder_cleanup_ref_olocked(ref);
+ binder_proc_unlock(proc);
+ binder_free_ref(ref);
+ binder_proc_lock(proc);
}
+ binder_proc_unlock(proc);
- put_task_struct(proc->tsk);
+ binder_release_work(proc, &proc->todo);
+ binder_release_work(proc, &proc->delivered_death);
binder_debug(BINDER_DEBUG_OPEN_CLOSE,
- "%s: %d threads %d, nodes %d (ref %d), refs %d, active transactions %d, buffers %d, pages %d\n",
+ "%s: %d threads %d, nodes %d (ref %d), refs %d, active transactions %d\n",
__func__, proc->pid, threads, nodes, incoming_refs,
- outgoing_refs, active_transactions, buffers, page_count);
+ outgoing_refs, active_transactions);
- kfree(proc);
+ binder_proc_dec_tmpref(proc);
}
static void binder_deferred_func(struct work_struct *work)
@@ -3703,7 +4875,6 @@ static void binder_deferred_func(struct work_struct *work)
int defer;
do {
- binder_lock(__func__);
mutex_lock(&binder_deferred_lock);
if (!hlist_empty(&binder_deferred_list)) {
proc = hlist_entry(binder_deferred_list.first,
@@ -3730,7 +4901,6 @@ static void binder_deferred_func(struct work_struct *work)
if (defer & BINDER_DEFERRED_RELEASE)
binder_deferred_release(proc); /* frees proc */
- binder_unlock(__func__);
if (files)
put_files_struct(files);
} while (proc);
@@ -3750,41 +4920,51 @@ binder_defer_work(struct binder_proc *proc, enum binder_deferred_state defer)
mutex_unlock(&binder_deferred_lock);
}
-static void print_binder_transaction(struct seq_file *m, const char *prefix,
- struct binder_transaction *t)
+static void print_binder_transaction_ilocked(struct seq_file *m,
+ struct binder_proc *proc,
+ const char *prefix,
+ struct binder_transaction *t)
{
+ struct binder_proc *to_proc;
+ struct binder_buffer *buffer = t->buffer;
+
+ spin_lock(&t->lock);
+ to_proc = t->to_proc;
seq_printf(m,
"%s %d: %p from %d:%d to %d:%d code %x flags %x pri %ld r%d",
prefix, t->debug_id, t,
t->from ? t->from->proc->pid : 0,
t->from ? t->from->pid : 0,
- t->to_proc ? t->to_proc->pid : 0,
+ to_proc ? to_proc->pid : 0,
t->to_thread ? t->to_thread->pid : 0,
t->code, t->flags, t->priority, t->need_reply);
- if (t->buffer == NULL) {
+ spin_unlock(&t->lock);
+
+ if (proc != to_proc) {
+ /*
+ * Can only safely deref buffer if we are holding the
+ * correct proc inner lock for this node
+ */
+ seq_puts(m, "\n");
+ return;
+ }
+
+ if (buffer == NULL) {
seq_puts(m, " buffer free\n");
return;
}
- if (t->buffer->target_node)
- seq_printf(m, " node %d",
- t->buffer->target_node->debug_id);
+ if (buffer->target_node)
+ seq_printf(m, " node %d", buffer->target_node->debug_id);
seq_printf(m, " size %zd:%zd data %p\n",
- t->buffer->data_size, t->buffer->offsets_size,
- t->buffer->data);
-}
-
-static void print_binder_buffer(struct seq_file *m, const char *prefix,
- struct binder_buffer *buffer)
-{
- seq_printf(m, "%s %d: %p size %zd:%zd %s\n",
- prefix, buffer->debug_id, buffer->data,
buffer->data_size, buffer->offsets_size,
- buffer->transaction ? "active" : "delivered");
+ buffer->data);
}
-static void print_binder_work(struct seq_file *m, const char *prefix,
- const char *transaction_prefix,
- struct binder_work *w)
+static void print_binder_work_ilocked(struct seq_file *m,
+ struct binder_proc *proc,
+ const char *prefix,
+ const char *transaction_prefix,
+ struct binder_work *w)
{
struct binder_node *node;
struct binder_transaction *t;
@@ -3792,8 +4972,16 @@ static void print_binder_work(struct seq_file *m, const char *prefix,
switch (w->type) {
case BINDER_WORK_TRANSACTION:
t = container_of(w, struct binder_transaction, work);
- print_binder_transaction(m, transaction_prefix, t);
+ print_binder_transaction_ilocked(
+ m, proc, transaction_prefix, t);
break;
+ case BINDER_WORK_RETURN_ERROR: {
+ struct binder_error *e = container_of(
+ w, struct binder_error, work);
+
+ seq_printf(m, "%stransaction error: %u\n",
+ prefix, e->cmd);
+ } break;
case BINDER_WORK_TRANSACTION_COMPLETE:
seq_printf(m, "%stransaction complete\n", prefix);
break;
@@ -3818,40 +5006,46 @@ static void print_binder_work(struct seq_file *m, const char *prefix,
}
}
-static void print_binder_thread(struct seq_file *m,
- struct binder_thread *thread,
- int print_always)
+static void print_binder_thread_ilocked(struct seq_file *m,
+ struct binder_thread *thread,
+ int print_always)
{
struct binder_transaction *t;
struct binder_work *w;
size_t start_pos = m->count;
size_t header_pos;
- seq_printf(m, " thread %d: l %02x\n", thread->pid, thread->looper);
+ seq_printf(m, " thread %d: l %02x need_return %d tr %d\n",
+ thread->pid, thread->looper,
+ thread->looper_need_return,
+ atomic_read(&thread->tmp_ref));
header_pos = m->count;
t = thread->transaction_stack;
while (t) {
if (t->from == thread) {
- print_binder_transaction(m,
- " outgoing transaction", t);
+ print_binder_transaction_ilocked(m, thread->proc,
+ " outgoing transaction", t);
t = t->from_parent;
} else if (t->to_thread == thread) {
- print_binder_transaction(m,
+ print_binder_transaction_ilocked(m, thread->proc,
" incoming transaction", t);
t = t->to_parent;
} else {
- print_binder_transaction(m, " bad transaction", t);
+ print_binder_transaction_ilocked(m, thread->proc,
+ " bad transaction", t);
t = NULL;
}
}
list_for_each_entry(w, &thread->todo, entry) {
- print_binder_work(m, " ", " pending transaction", w);
+ print_binder_work_ilocked(m, thread->proc, " ",
+ " pending transaction", w);
}
if (!print_always && m->count == header_pos)
m->count = start_pos;
}
-static void print_binder_node(struct seq_file *m, struct binder_node *node)
+static void print_binder_node_nilocked(struct seq_file *m,
+ struct binder_node *node)
{
struct binder_ref *ref;
struct binder_work *w;
@@ -3861,27 +5055,34 @@ static void print_binder_node(struct seq_file *m, struct binder_node *node)
hlist_for_each_entry(ref, &node->refs, node_entry)
count++;
- seq_printf(m, " node %d: u%016llx c%016llx hs %d hw %d ls %d lw %d is %d iw %d",
+ seq_printf(m, " node %d: u%016llx c%016llx hs %d hw %d ls %d lw %d is %d iw %d tr %d",
node->debug_id, (u64)node->ptr, (u64)node->cookie,
node->has_strong_ref, node->has_weak_ref,
node->local_strong_refs, node->local_weak_refs,
- node->internal_strong_refs, count);
+ node->internal_strong_refs, count, node->tmp_refs);
if (count) {
seq_puts(m, " proc");
hlist_for_each_entry(ref, &node->refs, node_entry)
seq_printf(m, " %d", ref->proc->pid);
}
seq_puts(m, "\n");
- list_for_each_entry(w, &node->async_todo, entry)
- print_binder_work(m, " ",
- " pending async transaction", w);
+ if (node->proc) {
+ list_for_each_entry(w, &node->async_todo, entry)
+ print_binder_work_ilocked(m, node->proc, " ",
+ " pending async transaction", w);
+ }
}
-static void print_binder_ref(struct seq_file *m, struct binder_ref *ref)
+static void print_binder_ref_olocked(struct seq_file *m,
+ struct binder_ref *ref)
{
- seq_printf(m, " ref %d: desc %d %snode %d s %d w %d d %p\n",
- ref->debug_id, ref->desc, ref->node->proc ? "" : "dead ",
- ref->node->debug_id, ref->strong, ref->weak, ref->death);
+ binder_node_lock(ref->node);
+ seq_printf(m, " ref %d: desc %d %snode %d s %d w %d d %pK\n",
+ ref->data.debug_id, ref->data.desc,
+ ref->node->proc ? "" : "dead ",
+ ref->node->debug_id, ref->data.strong,
+ ref->data.weak, ref->death);
+ binder_node_unlock(ref->node);
}
static void print_binder_proc(struct seq_file *m,
@@ -3891,36 +5092,60 @@ static void print_binder_proc(struct seq_file *m,
struct rb_node *n;
size_t start_pos = m->count;
size_t header_pos;
+ struct binder_node *last_node = NULL;
seq_printf(m, "proc %d\n", proc->pid);
seq_printf(m, "context %s\n", proc->context->name);
header_pos = m->count;
+ binder_inner_proc_lock(proc);
for (n = rb_first(&proc->threads); n != NULL; n = rb_next(n))
- print_binder_thread(m, rb_entry(n, struct binder_thread,
+ print_binder_thread_ilocked(m, rb_entry(n, struct binder_thread,
rb_node), print_all);
+
for (n = rb_first(&proc->nodes); n != NULL; n = rb_next(n)) {
struct binder_node *node = rb_entry(n, struct binder_node,
rb_node);
- if (print_all || node->has_async_transaction)
- print_binder_node(m, node);
- }
+ /*
+ * take a temporary reference on the node so it
+ * survives and isn't removed from the tree
+ * while we print it.
+ */
+ binder_inc_node_tmpref_ilocked(node);
+ /* Need to drop inner lock to take node lock */
+ binder_inner_proc_unlock(proc);
+ if (last_node)
+ binder_put_node(last_node);
+ binder_node_inner_lock(node);
+ print_binder_node_nilocked(m, node);
+ binder_node_inner_unlock(node);
+ last_node = node;
+ binder_inner_proc_lock(proc);
+ }
+ binder_inner_proc_unlock(proc);
+ if (last_node)
+ binder_put_node(last_node);
+
if (print_all) {
+ binder_proc_lock(proc);
for (n = rb_first(&proc->refs_by_desc);
n != NULL;
n = rb_next(n))
- print_binder_ref(m, rb_entry(n, struct binder_ref,
- rb_node_desc));
+ print_binder_ref_olocked(m, rb_entry(n,
+ struct binder_ref,
+ rb_node_desc));
+ binder_proc_unlock(proc);
}
- for (n = rb_first(&proc->allocated_buffers); n != NULL; n = rb_next(n))
- print_binder_buffer(m, " buffer",
- rb_entry(n, struct binder_buffer, rb_node));
+ binder_alloc_print_allocated(m, &proc->alloc);
+ binder_inner_proc_lock(proc);
list_for_each_entry(w, &proc->todo, entry)
- print_binder_work(m, " ", " pending transaction", w);
+ print_binder_work_ilocked(m, proc, " ",
+ " pending transaction", w);
list_for_each_entry(w, &proc->delivered_death, entry) {
seq_puts(m, " has delivered dead binder\n");
break;
}
+ binder_inner_proc_unlock(proc);
if (!print_all && m->count == header_pos)
m->count = start_pos;
}
@@ -3986,17 +5211,21 @@ static void print_binder_stats(struct seq_file *m, const char *prefix,
BUILD_BUG_ON(ARRAY_SIZE(stats->bc) !=
ARRAY_SIZE(binder_command_strings));
for (i = 0; i < ARRAY_SIZE(stats->bc); i++) {
- if (stats->bc[i])
+ int temp = atomic_read(&stats->bc[i]);
+
+ if (temp)
seq_printf(m, "%s%s: %d\n", prefix,
- binder_command_strings[i], stats->bc[i]);
+ binder_command_strings[i], temp);
}
BUILD_BUG_ON(ARRAY_SIZE(stats->br) !=
ARRAY_SIZE(binder_return_strings));
for (i = 0; i < ARRAY_SIZE(stats->br); i++) {
- if (stats->br[i])
+ int temp = atomic_read(&stats->br[i]);
+
+ if (temp)
seq_printf(m, "%s%s: %d\n", prefix,
- binder_return_strings[i], stats->br[i]);
+ binder_return_strings[i], temp);
}
BUILD_BUG_ON(ARRAY_SIZE(stats->obj_created) !=
@@ -4004,11 +5233,15 @@ static void print_binder_stats(struct seq_file *m, const char *prefix,
BUILD_BUG_ON(ARRAY_SIZE(stats->obj_created) !=
ARRAY_SIZE(stats->obj_deleted));
for (i = 0; i < ARRAY_SIZE(stats->obj_created); i++) {
- if (stats->obj_created[i] || stats->obj_deleted[i])
- seq_printf(m, "%s%s: active %d total %d\n", prefix,
+ int created = atomic_read(&stats->obj_created[i]);
+ int deleted = atomic_read(&stats->obj_deleted[i]);
+
+ if (created || deleted)
+ seq_printf(m, "%s%s: active %d total %d\n",
+ prefix,
binder_objstat_strings[i],
- stats->obj_created[i] - stats->obj_deleted[i],
- stats->obj_created[i]);
+ created - deleted,
+ created);
}
}
@@ -4016,51 +5249,61 @@ static void print_binder_proc_stats(struct seq_file *m,
struct binder_proc *proc)
{
struct binder_work *w;
+ struct binder_thread *thread;
struct rb_node *n;
- int count, strong, weak;
+ int count, strong, weak, ready_threads;
+ size_t free_async_space =
+ binder_alloc_get_free_async_space(&proc->alloc);
seq_printf(m, "proc %d\n", proc->pid);
seq_printf(m, "context %s\n", proc->context->name);
count = 0;
+ ready_threads = 0;
+ binder_inner_proc_lock(proc);
for (n = rb_first(&proc->threads); n != NULL; n = rb_next(n))
count++;
+
+ list_for_each_entry(thread, &proc->waiting_threads, waiting_thread_node)
+ ready_threads++;
+
seq_printf(m, " threads: %d\n", count);
seq_printf(m, " requested threads: %d+%d/%d\n"
" ready threads %d\n"
" free async space %zd\n", proc->requested_threads,
proc->requested_threads_started, proc->max_threads,
- proc->ready_threads, proc->free_async_space);
+ ready_threads,
+ free_async_space);
count = 0;
for (n = rb_first(&proc->nodes); n != NULL; n = rb_next(n))
count++;
+ binder_inner_proc_unlock(proc);
seq_printf(m, " nodes: %d\n", count);
count = 0;
strong = 0;
weak = 0;
+ binder_proc_lock(proc);
for (n = rb_first(&proc->refs_by_desc); n != NULL; n = rb_next(n)) {
struct binder_ref *ref = rb_entry(n, struct binder_ref,
rb_node_desc);
count++;
- strong += ref->strong;
- weak += ref->weak;
+ strong += ref->data.strong;
+ weak += ref->data.weak;
}
+ binder_proc_unlock(proc);
seq_printf(m, " refs: %d s %d w %d\n", count, strong, weak);
- count = 0;
- for (n = rb_first(&proc->allocated_buffers); n != NULL; n = rb_next(n))
- count++;
+ count = binder_alloc_get_allocated_count(&proc->alloc);
seq_printf(m, " buffers: %d\n", count);
+ binder_alloc_print_pages(m, &proc->alloc);
+
count = 0;
+ binder_inner_proc_lock(proc);
list_for_each_entry(w, &proc->todo, entry) {
- switch (w->type) {
- case BINDER_WORK_TRANSACTION:
+ if (w->type == BINDER_WORK_TRANSACTION)
count++;
- break;
- default:
- break;
- }
}
+ binder_inner_proc_unlock(proc);
seq_printf(m, " pending transactions: %d\n", count);
print_binder_stats(m, " ", &proc->stats);
@@ -4071,57 +5314,67 @@ static int binder_state_show(struct seq_file *m, void *unused)
{
struct binder_proc *proc;
struct binder_node *node;
- int do_lock = !binder_debug_no_lock;
-
- if (do_lock)
- binder_lock(__func__);
+ struct binder_node *last_node = NULL;
seq_puts(m, "binder state:\n");
+ spin_lock(&binder_dead_nodes_lock);
if (!hlist_empty(&binder_dead_nodes))
seq_puts(m, "dead nodes:\n");
- hlist_for_each_entry(node, &binder_dead_nodes, dead_node)
- print_binder_node(m, node);
-
+ hlist_for_each_entry(node, &binder_dead_nodes, dead_node) {
+ /*
+ * take a temporary reference on the node so it
+ * survives and isn't removed from the list
+ * while we print it.
+ */
+ node->tmp_refs++;
+ spin_unlock(&binder_dead_nodes_lock);
+ if (last_node)
+ binder_put_node(last_node);
+ binder_node_lock(node);
+ print_binder_node_nilocked(m, node);
+ binder_node_unlock(node);
+ last_node = node;
+ spin_lock(&binder_dead_nodes_lock);
+ }
+ spin_unlock(&binder_dead_nodes_lock);
+ if (last_node)
+ binder_put_node(last_node);
+
+ mutex_lock(&binder_procs_lock);
hlist_for_each_entry(proc, &binder_procs, proc_node)
print_binder_proc(m, proc, 1);
- if (do_lock)
- binder_unlock(__func__);
+ mutex_unlock(&binder_procs_lock);
+
return 0;
}
static int binder_stats_show(struct seq_file *m, void *unused)
{
struct binder_proc *proc;
- int do_lock = !binder_debug_no_lock;
-
- if (do_lock)
- binder_lock(__func__);
seq_puts(m, "binder stats:\n");
print_binder_stats(m, "", &binder_stats);
+ mutex_lock(&binder_procs_lock);
hlist_for_each_entry(proc, &binder_procs, proc_node)
print_binder_proc_stats(m, proc);
- if (do_lock)
- binder_unlock(__func__);
+ mutex_unlock(&binder_procs_lock);
+
return 0;
}
static int binder_transactions_show(struct seq_file *m, void *unused)
{
struct binder_proc *proc;
- int do_lock = !binder_debug_no_lock;
-
- if (do_lock)
- binder_lock(__func__);
seq_puts(m, "binder transactions:\n");
+ mutex_lock(&binder_procs_lock);
hlist_for_each_entry(proc, &binder_procs, proc_node)
print_binder_proc(m, proc, 0);
- if (do_lock)
- binder_unlock(__func__);
+ mutex_unlock(&binder_procs_lock);
+
return 0;
}
@@ -4129,44 +5382,63 @@ static int binder_proc_show(struct seq_file *m, void *unused)
{
struct binder_proc *itr;
int pid = (unsigned long)m->private;
- int do_lock = !binder_debug_no_lock;
-
- if (do_lock)
- binder_lock(__func__);
+ mutex_lock(&binder_procs_lock);
hlist_for_each_entry(itr, &binder_procs, proc_node) {
if (itr->pid == pid) {
seq_puts(m, "binder proc state:\n");
print_binder_proc(m, itr, 1);
}
}
- if (do_lock)
- binder_unlock(__func__);
+ mutex_unlock(&binder_procs_lock);
+
return 0;
}
static void print_binder_transaction_log_entry(struct seq_file *m,
struct binder_transaction_log_entry *e)
{
+ int debug_id = READ_ONCE(e->debug_id_done);
+ /*
+ * read barrier to guarantee debug_id_done read before
+ * we print the log values
+ */
+ smp_rmb();
seq_printf(m,
- "%d: %s from %d:%d to %d:%d context %s node %d handle %d size %d:%d\n",
+ "%d: %s from %d:%d to %d:%d context %s node %d handle %d size %d:%d ret %d/%d l=%d",
e->debug_id, (e->call_type == 2) ? "reply" :
((e->call_type == 1) ? "async" : "call "), e->from_proc,
e->from_thread, e->to_proc, e->to_thread, e->context_name,
- e->to_node, e->target_handle, e->data_size, e->offsets_size);
+ e->to_node, e->target_handle, e->data_size, e->offsets_size,
+ e->return_error, e->return_error_param,
+ e->return_error_line);
+ /*
+ * read-barrier to guarantee read of debug_id_done after
+ * done printing the fields of the entry
+ */
+ smp_rmb();
+ seq_printf(m, debug_id && debug_id == READ_ONCE(e->debug_id_done) ?
+ "\n" : " (incomplete)\n");
}
static int binder_transaction_log_show(struct seq_file *m, void *unused)
{
struct binder_transaction_log *log = m->private;
+ unsigned int log_cur = atomic_read(&log->cur);
+ unsigned int count;
+ unsigned int cur;
int i;
- if (log->full) {
- for (i = log->next; i < ARRAY_SIZE(log->entry); i++)
- print_binder_transaction_log_entry(m, &log->entry[i]);
+ count = log_cur + 1;
+ cur = count < ARRAY_SIZE(log->entry) && !log->full ?
+ 0 : count % ARRAY_SIZE(log->entry);
+ if (count > ARRAY_SIZE(log->entry) || log->full)
+ count = ARRAY_SIZE(log->entry);
+ for (i = 0; i < count; i++) {
+ unsigned int index = cur++ % ARRAY_SIZE(log->entry);
+
+ print_binder_transaction_log_entry(m, &log->entry[index]);
}
- for (i = 0; i < log->next; i++)
- print_binder_transaction_log_entry(m, &log->entry[i]);
return 0;
}
@@ -4201,6 +5473,7 @@ static int __init init_binder_device(const char *name)
binder_device->context.binder_context_mgr_uid = INVALID_UID;
binder_device->context.name = name;
+ mutex_init(&binder_device->context.context_mgr_node_lock);
ret = misc_register(&binder_device->miscdev);
if (ret < 0) {
@@ -4216,10 +5489,15 @@ static int __init init_binder_device(const char *name)
static int __init binder_init(void)
{
int ret;
- char *device_name, *device_names;
+ char *device_name, *device_names, *device_tmp;
struct binder_device *device;
struct hlist_node *tmp;
+ binder_alloc_shrinker_init();
+
+ atomic_set(&binder_transaction_log.cur, ~0U);
+ atomic_set(&binder_transaction_log_failed.cur, ~0U);
+
binder_debugfs_dir_entry_root = debugfs_create_dir("binder", NULL);
if (binder_debugfs_dir_entry_root)
binder_debugfs_dir_entry_proc = debugfs_create_dir("proc",
@@ -4264,7 +5542,8 @@ static int __init binder_init(void)
}
strcpy(device_names, binder_devices_param);
- while ((device_name = strsep(&device_names, ","))) {
+ device_tmp = device_names;
+ while ((device_name = strsep(&device_tmp, ","))) {
ret = init_binder_device(device_name);
if (ret)
goto err_init_binder_device_failed;
@@ -4278,6 +5557,9 @@ err_init_binder_device_failed:
hlist_del(&device->hlist);
kfree(device);
}
+
+ kfree(device_names);
+
err_alloc_device_names_failed:
debugfs_remove_recursive(binder_debugfs_dir_entry_root);
diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
new file mode 100644
index 000000000000..064f5e31ec55
--- /dev/null
+++ b/drivers/android/binder_alloc.c
@@ -0,0 +1,1015 @@
+/* binder_alloc.c
+ *
+ * Android IPC Subsystem
+ *
+ * Copyright (C) 2007-2017 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <asm/cacheflush.h>
+#include <linux/list.h>
+#include <linux/sched/mm.h>
+#include <linux/module.h>
+#include <linux/rtmutex.h>
+#include <linux/rbtree.h>
+#include <linux/seq_file.h>
+#include <linux/vmalloc.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/list_lru.h>
+#include "binder_alloc.h"
+#include "binder_trace.h"
+
+struct list_lru binder_alloc_lru;
+
+static DEFINE_MUTEX(binder_alloc_mmap_lock);
+
+enum {
+ BINDER_DEBUG_OPEN_CLOSE = 1U << 1,
+ BINDER_DEBUG_BUFFER_ALLOC = 1U << 2,
+ BINDER_DEBUG_BUFFER_ALLOC_ASYNC = 1U << 3,
+};
+static uint32_t binder_alloc_debug_mask;
+
+module_param_named(debug_mask, binder_alloc_debug_mask,
+ uint, 0644);
+
+#define binder_alloc_debug(mask, x...) \
+ do { \
+ if (binder_alloc_debug_mask & mask) \
+ pr_info(x); \
+ } while (0)
+
+static struct binder_buffer *binder_buffer_next(struct binder_buffer *buffer)
+{
+ return list_entry(buffer->entry.next, struct binder_buffer, entry);
+}
+
+static struct binder_buffer *binder_buffer_prev(struct binder_buffer *buffer)
+{
+ return list_entry(buffer->entry.prev, struct binder_buffer, entry);
+}
+
+static size_t binder_alloc_buffer_size(struct binder_alloc *alloc,
+ struct binder_buffer *buffer)
+{
+ if (list_is_last(&buffer->entry, &alloc->buffers))
+ return (u8 *)alloc->buffer +
+ alloc->buffer_size - (u8 *)buffer->data;
+ return (u8 *)binder_buffer_next(buffer)->data - (u8 *)buffer->data;
+}
+
+static void binder_insert_free_buffer(struct binder_alloc *alloc,
+ struct binder_buffer *new_buffer)
+{
+ struct rb_node **p = &alloc->free_buffers.rb_node;
+ struct rb_node *parent = NULL;
+ struct binder_buffer *buffer;
+ size_t buffer_size;
+ size_t new_buffer_size;
+
+ BUG_ON(!new_buffer->free);
+
+ new_buffer_size = binder_alloc_buffer_size(alloc, new_buffer);
+
+ binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
+ "%d: add free buffer, size %zd, at %pK\n",
+ alloc->pid, new_buffer_size, new_buffer);
+
+ while (*p) {
+ parent = *p;
+ buffer = rb_entry(parent, struct binder_buffer, rb_node);
+ BUG_ON(!buffer->free);
+
+ buffer_size = binder_alloc_buffer_size(alloc, buffer);
+
+ if (new_buffer_size < buffer_size)
+ p = &parent->rb_left;
+ else
+ p = &parent->rb_right;
+ }
+ rb_link_node(&new_buffer->rb_node, parent, p);
+ rb_insert_color(&new_buffer->rb_node, &alloc->free_buffers);
+}
+
+static void binder_insert_allocated_buffer_locked(
+ struct binder_alloc *alloc, struct binder_buffer *new_buffer)
+{
+ struct rb_node **p = &alloc->allocated_buffers.rb_node;
+ struct rb_node *parent = NULL;
+ struct binder_buffer *buffer;
+
+ BUG_ON(new_buffer->free);
+
+ while (*p) {
+ parent = *p;
+ buffer = rb_entry(parent, struct binder_buffer, rb_node);
+ BUG_ON(buffer->free);
+
+ if (new_buffer->data < buffer->data)
+ p = &parent->rb_left;
+ else if (new_buffer->data > buffer->data)
+ p = &parent->rb_right;
+ else
+ BUG();
+ }
+ rb_link_node(&new_buffer->rb_node, parent, p);
+ rb_insert_color(&new_buffer->rb_node, &alloc->allocated_buffers);
+}
+
+static struct binder_buffer *binder_alloc_prepare_to_free_locked(
+ struct binder_alloc *alloc,
+ uintptr_t user_ptr)
+{
+ struct rb_node *n = alloc->allocated_buffers.rb_node;
+ struct binder_buffer *buffer;
+ void *kern_ptr;
+
+ kern_ptr = (void *)(user_ptr - alloc->user_buffer_offset);
+
+ while (n) {
+ buffer = rb_entry(n, struct binder_buffer, rb_node);
+ BUG_ON(buffer->free);
+
+ if (kern_ptr < buffer->data)
+ n = n->rb_left;
+ else if (kern_ptr > buffer->data)
+ n = n->rb_right;
+ else {
+ /*
+ * Guard against user threads attempting to
+ * free the buffer twice
+ */
+ if (buffer->free_in_progress) {
+ pr_err("%d:%d FREE_BUFFER u%016llx user freed buffer twice\n",
+ alloc->pid, current->pid, (u64)user_ptr);
+ return NULL;
+ }
+ buffer->free_in_progress = 1;
+ return buffer;
+ }
+ }
+ return NULL;
+}
+
+/**
+ * binder_alloc_buffer_lookup() - get buffer given user ptr
+ * @alloc: binder_alloc for this proc
+ * @user_ptr: User pointer to buffer data
+ *
+ * Validate userspace pointer to buffer data and return buffer corresponding to
+ * that user pointer. Search the rb tree for buffer that matches user data
+ * pointer.
+ *
+ * Return: Pointer to buffer or NULL
+ */
+struct binder_buffer *binder_alloc_prepare_to_free(struct binder_alloc *alloc,
+ uintptr_t user_ptr)
+{
+ struct binder_buffer *buffer;
+
+ mutex_lock(&alloc->mutex);
+ buffer = binder_alloc_prepare_to_free_locked(alloc, user_ptr);
+ mutex_unlock(&alloc->mutex);
+ return buffer;
+}
+
+static int binder_update_page_range(struct binder_alloc *alloc, int allocate,
+ void *start, void *end,
+ struct vm_area_struct *vma)
+{
+ void *page_addr;
+ unsigned long user_page_addr;
+ struct binder_lru_page *page;
+ struct mm_struct *mm = NULL;
+ bool need_mm = false;
+
+ binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
+ "%d: %s pages %pK-%pK\n", alloc->pid,
+ allocate ? "allocate" : "free", start, end);
+
+ if (end <= start)
+ return 0;
+
+ trace_binder_update_page_range(alloc, allocate, start, end);
+
+ if (allocate == 0)
+ goto free_range;
+
+ for (page_addr = start; page_addr < end; page_addr += PAGE_SIZE) {
+ page = &alloc->pages[(page_addr - alloc->buffer) / PAGE_SIZE];
+ if (!page->page_ptr) {
+ need_mm = true;
+ break;
+ }
+ }
+
+ if (!vma && need_mm)
+ mm = get_task_mm(alloc->tsk);
+
+ if (mm) {
+ down_write(&mm->mmap_sem);
+ vma = alloc->vma;
+ if (vma && mm != alloc->vma_vm_mm) {
+ pr_err("%d: vma mm and task mm mismatch\n",
+ alloc->pid);
+ vma = NULL;
+ }
+ }
+
+ if (!vma && need_mm) {
+ pr_err("%d: binder_alloc_buf failed to map pages in userspace, no vma\n",
+ alloc->pid);
+ goto err_no_vma;
+ }
+
+ for (page_addr = start; page_addr < end; page_addr += PAGE_SIZE) {
+ int ret;
+ bool on_lru;
+ size_t index;
+
+ index = (page_addr - alloc->buffer) / PAGE_SIZE;
+ page = &alloc->pages[index];
+
+ if (page->page_ptr) {
+ trace_binder_alloc_lru_start(alloc, index);
+
+ on_lru = list_lru_del(&binder_alloc_lru, &page->lru);
+ WARN_ON(!on_lru);
+
+ trace_binder_alloc_lru_end(alloc, index);
+ continue;
+ }
+
+ if (WARN_ON(!vma))
+ goto err_page_ptr_cleared;
+
+ trace_binder_alloc_page_start(alloc, index);
+ page->page_ptr = alloc_page(GFP_KERNEL |
+ __GFP_HIGHMEM |
+ __GFP_ZERO);
+ if (!page->page_ptr) {
+ pr_err("%d: binder_alloc_buf failed for page at %pK\n",
+ alloc->pid, page_addr);
+ goto err_alloc_page_failed;
+ }
+ page->alloc = alloc;
+ INIT_LIST_HEAD(&page->lru);
+
+ ret = map_kernel_range_noflush((unsigned long)page_addr,
+ PAGE_SIZE, PAGE_KERNEL,
+ &page->page_ptr);
+ flush_cache_vmap((unsigned long)page_addr,
+ (unsigned long)page_addr + PAGE_SIZE);
+ if (ret != 1) {
+ pr_err("%d: binder_alloc_buf failed to map page at %pK in kernel\n",
+ alloc->pid, page_addr);
+ goto err_map_kernel_failed;
+ }
+ user_page_addr =
+ (uintptr_t)page_addr + alloc->user_buffer_offset;
+ ret = vm_insert_page(vma, user_page_addr, page[0].page_ptr);
+ if (ret) {
+ pr_err("%d: binder_alloc_buf failed to map page at %lx in userspace\n",
+ alloc->pid, user_page_addr);
+ goto err_vm_insert_page_failed;
+ }
+
+ trace_binder_alloc_page_end(alloc, index);
+ /* vm_insert_page does not seem to increment the refcount */
+ }
+ if (mm) {
+ up_write(&mm->mmap_sem);
+ mmput(mm);
+ }
+ return 0;
+
+free_range:
+ for (page_addr = end - PAGE_SIZE; page_addr >= start;
+ page_addr -= PAGE_SIZE) {
+ bool ret;
+ size_t index;
+
+ index = (page_addr - alloc->buffer) / PAGE_SIZE;
+ page = &alloc->pages[index];
+
+ trace_binder_free_lru_start(alloc, index);
+
+ ret = list_lru_add(&binder_alloc_lru, &page->lru);
+ WARN_ON(!ret);
+
+ trace_binder_free_lru_end(alloc, index);
+ continue;
+
+err_vm_insert_page_failed:
+ unmap_kernel_range((unsigned long)page_addr, PAGE_SIZE);
+err_map_kernel_failed:
+ __free_page(page->page_ptr);
+ page->page_ptr = NULL;
+err_alloc_page_failed:
+err_page_ptr_cleared:
+ ;
+ }
+err_no_vma:
+ if (mm) {
+ up_write(&mm->mmap_sem);
+ mmput(mm);
+ }
+ return vma ? -ENOMEM : -ESRCH;
+}
+
+struct binder_buffer *binder_alloc_new_buf_locked(struct binder_alloc *alloc,
+ size_t data_size,
+ size_t offsets_size,
+ size_t extra_buffers_size,
+ int is_async)
+{
+ struct rb_node *n = alloc->free_buffers.rb_node;
+ struct binder_buffer *buffer;
+ size_t buffer_size;
+ struct rb_node *best_fit = NULL;
+ void *has_page_addr;
+ void *end_page_addr;
+ size_t size, data_offsets_size;
+ int ret;
+
+ if (alloc->vma == NULL) {
+ pr_err("%d: binder_alloc_buf, no vma\n",
+ alloc->pid);
+ return ERR_PTR(-ESRCH);
+ }
+
+ data_offsets_size = ALIGN(data_size, sizeof(void *)) +
+ ALIGN(offsets_size, sizeof(void *));
+
+ if (data_offsets_size < data_size || data_offsets_size < offsets_size) {
+ binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
+ "%d: got transaction with invalid size %zd-%zd\n",
+ alloc->pid, data_size, offsets_size);
+ return ERR_PTR(-EINVAL);
+ }
+ size = data_offsets_size + ALIGN(extra_buffers_size, sizeof(void *));
+ if (size < data_offsets_size || size < extra_buffers_size) {
+ binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
+ "%d: got transaction with invalid extra_buffers_size %zd\n",
+ alloc->pid, extra_buffers_size);
+ return ERR_PTR(-EINVAL);
+ }
+ if (is_async &&
+ alloc->free_async_space < size + sizeof(struct binder_buffer)) {
+ binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
+ "%d: binder_alloc_buf size %zd failed, no async space left\n",
+ alloc->pid, size);
+ return ERR_PTR(-ENOSPC);
+ }
+
+ /* Pad 0-size buffers so they get assigned unique addresses */
+ size = max(size, sizeof(void *));
+
+ while (n) {
+ buffer = rb_entry(n, struct binder_buffer, rb_node);
+ BUG_ON(!buffer->free);
+ buffer_size = binder_alloc_buffer_size(alloc, buffer);
+
+ if (size < buffer_size) {
+ best_fit = n;
+ n = n->rb_left;
+ } else if (size > buffer_size)
+ n = n->rb_right;
+ else {
+ best_fit = n;
+ break;
+ }
+ }
+ if (best_fit == NULL) {
+ size_t allocated_buffers = 0;
+ size_t largest_alloc_size = 0;
+ size_t total_alloc_size = 0;
+ size_t free_buffers = 0;
+ size_t largest_free_size = 0;
+ size_t total_free_size = 0;
+
+ for (n = rb_first(&alloc->allocated_buffers); n != NULL;
+ n = rb_next(n)) {
+ buffer = rb_entry(n, struct binder_buffer, rb_node);
+ buffer_size = binder_alloc_buffer_size(alloc, buffer);
+ allocated_buffers++;
+ total_alloc_size += buffer_size;
+ if (buffer_size > largest_alloc_size)
+ largest_alloc_size = buffer_size;
+ }
+ for (n = rb_first(&alloc->free_buffers); n != NULL;
+ n = rb_next(n)) {
+ buffer = rb_entry(n, struct binder_buffer, rb_node);
+ buffer_size = binder_alloc_buffer_size(alloc, buffer);
+ free_buffers++;
+ total_free_size += buffer_size;
+ if (buffer_size > largest_free_size)
+ largest_free_size = buffer_size;
+ }
+ pr_err("%d: binder_alloc_buf size %zd failed, no address space\n",
+ alloc->pid, size);
+ pr_err("allocated: %zd (num: %zd largest: %zd), free: %zd (num: %zd largest: %zd)\n",
+ total_alloc_size, allocated_buffers, largest_alloc_size,
+ total_free_size, free_buffers, largest_free_size);
+ return ERR_PTR(-ENOSPC);
+ }
+ if (n == NULL) {
+ buffer = rb_entry(best_fit, struct binder_buffer, rb_node);
+ buffer_size = binder_alloc_buffer_size(alloc, buffer);
+ }
+
+ binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
+ "%d: binder_alloc_buf size %zd got buffer %pK size %zd\n",
+ alloc->pid, size, buffer, buffer_size);
+
+ has_page_addr =
+ (void *)(((uintptr_t)buffer->data + buffer_size) & PAGE_MASK);
+ WARN_ON(n && buffer_size != size);
+ end_page_addr =
+ (void *)PAGE_ALIGN((uintptr_t)buffer->data + size);
+ if (end_page_addr > has_page_addr)
+ end_page_addr = has_page_addr;
+ ret = binder_update_page_range(alloc, 1,
+ (void *)PAGE_ALIGN((uintptr_t)buffer->data), end_page_addr, NULL);
+ if (ret)
+ return ERR_PTR(ret);
+
+ if (buffer_size != size) {
+ struct binder_buffer *new_buffer;
+
+ new_buffer = kzalloc(sizeof(*buffer), GFP_KERNEL);
+ if (!new_buffer) {
+ pr_err("%s: %d failed to alloc new buffer struct\n",
+ __func__, alloc->pid);
+ goto err_alloc_buf_struct_failed;
+ }
+ new_buffer->data = (u8 *)buffer->data + size;
+ list_add(&new_buffer->entry, &buffer->entry);
+ new_buffer->free = 1;
+ binder_insert_free_buffer(alloc, new_buffer);
+ }
+
+ rb_erase(best_fit, &alloc->free_buffers);
+ buffer->free = 0;
+ buffer->free_in_progress = 0;
+ binder_insert_allocated_buffer_locked(alloc, buffer);
+ binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
+ "%d: binder_alloc_buf size %zd got %pK\n",
+ alloc->pid, size, buffer);
+ buffer->data_size = data_size;
+ buffer->offsets_size = offsets_size;
+ buffer->async_transaction = is_async;
+ buffer->extra_buffers_size = extra_buffers_size;
+ if (is_async) {
+ alloc->free_async_space -= size + sizeof(struct binder_buffer);
+ binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC_ASYNC,
+ "%d: binder_alloc_buf size %zd async free %zd\n",
+ alloc->pid, size, alloc->free_async_space);
+ }
+ return buffer;
+
+err_alloc_buf_struct_failed:
+ binder_update_page_range(alloc, 0,
+ (void *)PAGE_ALIGN((uintptr_t)buffer->data),
+ end_page_addr, NULL);
+ return ERR_PTR(-ENOMEM);
+}
+
+/**
+ * binder_alloc_new_buf() - Allocate a new binder buffer
+ * @alloc: binder_alloc for this proc
+ * @data_size: size of user data buffer
+ * @offsets_size: user specified buffer offset
+ * @extra_buffers_size: size of extra space for meta-data (eg, security context)
+ * @is_async: buffer for async transaction
+ *
+ * Allocate a new buffer given the requested sizes. Returns
+ * the kernel version of the buffer pointer. The size allocated
+ * is the sum of the three given sizes (each rounded up to
+ * pointer-sized boundary)
+ *
+ * Return: The allocated buffer or %NULL if error
+ */
+struct binder_buffer *binder_alloc_new_buf(struct binder_alloc *alloc,
+ size_t data_size,
+ size_t offsets_size,
+ size_t extra_buffers_size,
+ int is_async)
+{
+ struct binder_buffer *buffer;
+
+ mutex_lock(&alloc->mutex);
+ buffer = binder_alloc_new_buf_locked(alloc, data_size, offsets_size,
+ extra_buffers_size, is_async);
+ mutex_unlock(&alloc->mutex);
+ return buffer;
+}
+
+static void *buffer_start_page(struct binder_buffer *buffer)
+{
+ return (void *)((uintptr_t)buffer->data & PAGE_MASK);
+}
+
+static void *prev_buffer_end_page(struct binder_buffer *buffer)
+{
+ return (void *)(((uintptr_t)(buffer->data) - 1) & PAGE_MASK);
+}
+
+static void binder_delete_free_buffer(struct binder_alloc *alloc,
+ struct binder_buffer *buffer)
+{
+ struct binder_buffer *prev, *next = NULL;
+ bool to_free = true;
+ BUG_ON(alloc->buffers.next == &buffer->entry);
+ prev = binder_buffer_prev(buffer);
+ BUG_ON(!prev->free);
+ if (prev_buffer_end_page(prev) == buffer_start_page(buffer)) {
+ to_free = false;
+ binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
+ "%d: merge free, buffer %pK share page with %pK\n",
+ alloc->pid, buffer->data, prev->data);
+ }
+
+ if (!list_is_last(&buffer->entry, &alloc->buffers)) {
+ next = binder_buffer_next(buffer);
+ if (buffer_start_page(next) == buffer_start_page(buffer)) {
+ to_free = false;
+ binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
+ "%d: merge free, buffer %pK share page with %pK\n",
+ alloc->pid,
+ buffer->data,
+ next->data);
+ }
+ }
+
+ if (PAGE_ALIGNED(buffer->data)) {
+ binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
+ "%d: merge free, buffer start %pK is page aligned\n",
+ alloc->pid, buffer->data);
+ to_free = false;
+ }
+
+ if (to_free) {
+ binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
+ "%d: merge free, buffer %pK do not share page with %pK or %pK\n",
+ alloc->pid, buffer->data,
+ prev->data, next->data);
+ binder_update_page_range(alloc, 0, buffer_start_page(buffer),
+ buffer_start_page(buffer) + PAGE_SIZE,
+ NULL);
+ }
+ list_del(&buffer->entry);
+ kfree(buffer);
+}
+
+static void binder_free_buf_locked(struct binder_alloc *alloc,
+ struct binder_buffer *buffer)
+{
+ size_t size, buffer_size;
+
+ buffer_size = binder_alloc_buffer_size(alloc, buffer);
+
+ size = ALIGN(buffer->data_size, sizeof(void *)) +
+ ALIGN(buffer->offsets_size, sizeof(void *)) +
+ ALIGN(buffer->extra_buffers_size, sizeof(void *));
+
+ binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
+ "%d: binder_free_buf %pK size %zd buffer_size %zd\n",
+ alloc->pid, buffer, size, buffer_size);
+
+ BUG_ON(buffer->free);
+ BUG_ON(size > buffer_size);
+ BUG_ON(buffer->transaction != NULL);
+ BUG_ON(buffer->data < alloc->buffer);
+ BUG_ON(buffer->data > alloc->buffer + alloc->buffer_size);
+
+ if (buffer->async_transaction) {
+ alloc->free_async_space += size + sizeof(struct binder_buffer);
+
+ binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC_ASYNC,
+ "%d: binder_free_buf size %zd async free %zd\n",
+ alloc->pid, size, alloc->free_async_space);
+ }
+
+ binder_update_page_range(alloc, 0,
+ (void *)PAGE_ALIGN((uintptr_t)buffer->data),
+ (void *)(((uintptr_t)buffer->data + buffer_size) & PAGE_MASK),
+ NULL);
+
+ rb_erase(&buffer->rb_node, &alloc->allocated_buffers);
+ buffer->free = 1;
+ if (!list_is_last(&buffer->entry, &alloc->buffers)) {
+ struct binder_buffer *next = binder_buffer_next(buffer);
+
+ if (next->free) {
+ rb_erase(&next->rb_node, &alloc->free_buffers);
+ binder_delete_free_buffer(alloc, next);
+ }
+ }
+ if (alloc->buffers.next != &buffer->entry) {
+ struct binder_buffer *prev = binder_buffer_prev(buffer);
+
+ if (prev->free) {
+ binder_delete_free_buffer(alloc, buffer);
+ rb_erase(&prev->rb_node, &alloc->free_buffers);
+ buffer = prev;
+ }
+ }
+ binder_insert_free_buffer(alloc, buffer);
+}
+
+/**
+ * binder_alloc_free_buf() - free a binder buffer
+ * @alloc: binder_alloc for this proc
+ * @buffer: kernel pointer to buffer
+ *
+ * Free the buffer allocated via binder_alloc_new_buffer()
+ */
+void binder_alloc_free_buf(struct binder_alloc *alloc,
+ struct binder_buffer *buffer)
+{
+ mutex_lock(&alloc->mutex);
+ binder_free_buf_locked(alloc, buffer);
+ mutex_unlock(&alloc->mutex);
+}
+
+/**
+ * binder_alloc_mmap_handler() - map virtual address space for proc
+ * @alloc: alloc structure for this proc
+ * @vma: vma passed to mmap()
+ *
+ * Called by binder_mmap() to initialize the space specified in
+ * vma for allocating binder buffers
+ *
+ * Return:
+ * 0 = success
+ * -EBUSY = address space already mapped
+ * -ENOMEM = failed to map memory to given address space
+ */
+int binder_alloc_mmap_handler(struct binder_alloc *alloc,
+ struct vm_area_struct *vma)
+{
+ int ret;
+ struct vm_struct *area;
+ const char *failure_string;
+ struct binder_buffer *buffer;
+
+ mutex_lock(&binder_alloc_mmap_lock);
+ if (alloc->buffer) {
+ ret = -EBUSY;
+ failure_string = "already mapped";
+ goto err_already_mapped;
+ }
+
+ area = get_vm_area(vma->vm_end - vma->vm_start, VM_IOREMAP);
+ if (area == NULL) {
+ ret = -ENOMEM;
+ failure_string = "get_vm_area";
+ goto err_get_vm_area_failed;
+ }
+ alloc->buffer = area->addr;
+ alloc->user_buffer_offset =
+ vma->vm_start - (uintptr_t)alloc->buffer;
+ mutex_unlock(&binder_alloc_mmap_lock);
+
+#ifdef CONFIG_CPU_CACHE_VIPT
+ if (cache_is_vipt_aliasing()) {
+ while (CACHE_COLOUR(
+ (vma->vm_start ^ (uint32_t)alloc->buffer))) {
+ pr_info("%s: %d %lx-%lx maps %pK bad alignment\n",
+ __func__, alloc->pid, vma->vm_start,
+ vma->vm_end, alloc->buffer);
+ vma->vm_start += PAGE_SIZE;
+ }
+ }
+#endif
+ alloc->pages = kzalloc(sizeof(alloc->pages[0]) *
+ ((vma->vm_end - vma->vm_start) / PAGE_SIZE),
+ GFP_KERNEL);
+ if (alloc->pages == NULL) {
+ ret = -ENOMEM;
+ failure_string = "alloc page array";
+ goto err_alloc_pages_failed;
+ }
+ alloc->buffer_size = vma->vm_end - vma->vm_start;
+
+ buffer = kzalloc(sizeof(*buffer), GFP_KERNEL);
+ if (!buffer) {
+ ret = -ENOMEM;
+ failure_string = "alloc buffer struct";
+ goto err_alloc_buf_struct_failed;
+ }
+
+ buffer->data = alloc->buffer;
+ list_add(&buffer->entry, &alloc->buffers);
+ buffer->free = 1;
+ binder_insert_free_buffer(alloc, buffer);
+ alloc->free_async_space = alloc->buffer_size / 2;
+ barrier();
+ alloc->vma = vma;
+ alloc->vma_vm_mm = vma->vm_mm;
+
+ return 0;
+
+err_alloc_buf_struct_failed:
+ kfree(alloc->pages);
+ alloc->pages = NULL;
+err_alloc_pages_failed:
+ mutex_lock(&binder_alloc_mmap_lock);
+ vfree(alloc->buffer);
+ alloc->buffer = NULL;
+err_get_vm_area_failed:
+err_already_mapped:
+ mutex_unlock(&binder_alloc_mmap_lock);
+ pr_err("%s: %d %lx-%lx %s failed %d\n", __func__,
+ alloc->pid, vma->vm_start, vma->vm_end, failure_string, ret);
+ return ret;
+}
+
+
+void binder_alloc_deferred_release(struct binder_alloc *alloc)
+{
+ struct rb_node *n;
+ int buffers, page_count;
+ struct binder_buffer *buffer;
+
+ BUG_ON(alloc->vma);
+
+ buffers = 0;
+ mutex_lock(&alloc->mutex);
+ while ((n = rb_first(&alloc->allocated_buffers))) {
+ buffer = rb_entry(n, struct binder_buffer, rb_node);
+
+ /* Transaction should already have been freed */
+ BUG_ON(buffer->transaction);
+
+ binder_free_buf_locked(alloc, buffer);
+ buffers++;
+ }
+
+ while (!list_empty(&alloc->buffers)) {
+ buffer = list_first_entry(&alloc->buffers,
+ struct binder_buffer, entry);
+ WARN_ON(!buffer->free);
+
+ list_del(&buffer->entry);
+ WARN_ON_ONCE(!list_empty(&alloc->buffers));
+ kfree(buffer);
+ }
+
+ page_count = 0;
+ if (alloc->pages) {
+ int i;
+
+ for (i = 0; i < alloc->buffer_size / PAGE_SIZE; i++) {
+ void *page_addr;
+ bool on_lru;
+
+ if (!alloc->pages[i].page_ptr)
+ continue;
+
+ on_lru = list_lru_del(&binder_alloc_lru,
+ &alloc->pages[i].lru);
+ page_addr = alloc->buffer + i * PAGE_SIZE;
+ binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
+ "%s: %d: page %d at %pK %s\n",
+ __func__, alloc->pid, i, page_addr,
+ on_lru ? "on lru" : "active");
+ unmap_kernel_range((unsigned long)page_addr, PAGE_SIZE);
+ __free_page(alloc->pages[i].page_ptr);
+ page_count++;
+ }
+ kfree(alloc->pages);
+ vfree(alloc->buffer);
+ }
+ mutex_unlock(&alloc->mutex);
+
+ binder_alloc_debug(BINDER_DEBUG_OPEN_CLOSE,
+ "%s: %d buffers %d, pages %d\n",
+ __func__, alloc->pid, buffers, page_count);
+}
+
+static void print_binder_buffer(struct seq_file *m, const char *prefix,
+ struct binder_buffer *buffer)
+{
+ seq_printf(m, "%s %d: %pK size %zd:%zd:%zd %s\n",
+ prefix, buffer->debug_id, buffer->data,
+ buffer->data_size, buffer->offsets_size,
+ buffer->extra_buffers_size,
+ buffer->transaction ? "active" : "delivered");
+}
+
+/**
+ * binder_alloc_print_allocated() - print buffer info
+ * @m: seq_file for output via seq_printf()
+ * @alloc: binder_alloc for this proc
+ *
+ * Prints information about every buffer associated with
+ * the binder_alloc state to the given seq_file
+ */
+void binder_alloc_print_allocated(struct seq_file *m,
+ struct binder_alloc *alloc)
+{
+ struct rb_node *n;
+
+ mutex_lock(&alloc->mutex);
+ for (n = rb_first(&alloc->allocated_buffers); n != NULL; n = rb_next(n))
+ print_binder_buffer(m, " buffer",
+ rb_entry(n, struct binder_buffer, rb_node));
+ mutex_unlock(&alloc->mutex);
+}
+
+/**
+ * binder_alloc_print_pages() - print page usage
+ * @m: seq_file for output via seq_printf()
+ * @alloc: binder_alloc for this proc
+ */
+void binder_alloc_print_pages(struct seq_file *m,
+ struct binder_alloc *alloc)
+{
+ struct binder_lru_page *page;
+ int i;
+ int active = 0;
+ int lru = 0;
+ int free = 0;
+
+ mutex_lock(&alloc->mutex);
+ for (i = 0; i < alloc->buffer_size / PAGE_SIZE; i++) {
+ page = &alloc->pages[i];
+ if (!page->page_ptr)
+ free++;
+ else if (list_empty(&page->lru))
+ active++;
+ else
+ lru++;
+ }
+ mutex_unlock(&alloc->mutex);
+ seq_printf(m, " pages: %d:%d:%d\n", active, lru, free);
+}
+
+/**
+ * binder_alloc_get_allocated_count() - return count of buffers
+ * @alloc: binder_alloc for this proc
+ *
+ * Return: count of allocated buffers
+ */
+int binder_alloc_get_allocated_count(struct binder_alloc *alloc)
+{
+ struct rb_node *n;
+ int count = 0;
+
+ mutex_lock(&alloc->mutex);
+ for (n = rb_first(&alloc->allocated_buffers); n != NULL; n = rb_next(n))
+ count++;
+ mutex_unlock(&alloc->mutex);
+ return count;
+}
+
+
+/**
+ * binder_alloc_vma_close() - invalidate address space
+ * @alloc: binder_alloc for this proc
+ *
+ * Called from binder_vma_close() when releasing address space.
+ * Clears alloc->vma to prevent new incoming transactions from
+ * allocating more buffers.
+ */
+void binder_alloc_vma_close(struct binder_alloc *alloc)
+{
+ WRITE_ONCE(alloc->vma, NULL);
+ WRITE_ONCE(alloc->vma_vm_mm, NULL);
+}
+
+/**
+ * binder_alloc_free_page() - shrinker callback to free pages
+ * @item: item to free
+ * @lock: lock protecting the item
+ * @cb_arg: callback argument
+ *
+ * Called from list_lru_walk() in binder_shrink_scan() to free
+ * up pages when the system is under memory pressure.
+ */
+enum lru_status binder_alloc_free_page(struct list_head *item,
+ struct list_lru_one *lru,
+ spinlock_t *lock,
+ void *cb_arg)
+{
+ struct mm_struct *mm = NULL;
+ struct binder_lru_page *page = container_of(item,
+ struct binder_lru_page,
+ lru);
+ struct binder_alloc *alloc;
+ uintptr_t page_addr;
+ size_t index;
+ struct vm_area_struct *vma;
+
+ alloc = page->alloc;
+ if (!mutex_trylock(&alloc->mutex))
+ goto err_get_alloc_mutex_failed;
+
+ if (!page->page_ptr)
+ goto err_page_already_freed;
+
+ index = page - alloc->pages;
+ page_addr = (uintptr_t)alloc->buffer + index * PAGE_SIZE;
+ vma = alloc->vma;
+ if (vma) {
+ mm = get_task_mm(alloc->tsk);
+ if (!mm)
+ goto err_get_task_mm_failed;
+ if (!down_write_trylock(&mm->mmap_sem))
+ goto err_down_write_mmap_sem_failed;
+ }
+
+ list_lru_isolate(lru, item);
+ spin_unlock(lock);
+
+ if (vma) {
+ trace_binder_unmap_user_start(alloc, index);
+
+ zap_page_range(vma,
+ page_addr + alloc->user_buffer_offset,
+ PAGE_SIZE);
+
+ trace_binder_unmap_user_end(alloc, index);
+
+ up_write(&mm->mmap_sem);
+ mmput(mm);
+ }
+
+ trace_binder_unmap_kernel_start(alloc, index);
+
+ unmap_kernel_range(page_addr, PAGE_SIZE);
+ __free_page(page->page_ptr);
+ page->page_ptr = NULL;
+
+ trace_binder_unmap_kernel_end(alloc, index);
+
+ spin_lock(lock);
+ mutex_unlock(&alloc->mutex);
+ return LRU_REMOVED_RETRY;
+
+err_down_write_mmap_sem_failed:
+ mmput_async(mm);
+err_get_task_mm_failed:
+err_page_already_freed:
+ mutex_unlock(&alloc->mutex);
+err_get_alloc_mutex_failed:
+ return LRU_SKIP;
+}
+
+static unsigned long
+binder_shrink_count(struct shrinker *shrink, struct shrink_control *sc)
+{
+ unsigned long ret = list_lru_count(&binder_alloc_lru);
+ return ret;
+}
+
+static unsigned long
+binder_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
+{
+ unsigned long ret;
+
+ ret = list_lru_walk(&binder_alloc_lru, binder_alloc_free_page,
+ NULL, sc->nr_to_scan);
+ return ret;
+}
+
+struct shrinker binder_shrinker = {
+ .count_objects = binder_shrink_count,
+ .scan_objects = binder_shrink_scan,
+ .seeks = DEFAULT_SEEKS,
+};
+
+/**
+ * binder_alloc_init() - called by binder_open() for per-proc initialization
+ * @alloc: binder_alloc for this proc
+ *
+ * Called from binder_open() to initialize binder_alloc fields for
+ * new binder proc
+ */
+void binder_alloc_init(struct binder_alloc *alloc)
+{
+ alloc->tsk = current->group_leader;
+ alloc->pid = current->group_leader->pid;
+ mutex_init(&alloc->mutex);
+ INIT_LIST_HEAD(&alloc->buffers);
+}
+
+void binder_alloc_shrinker_init(void)
+{
+ list_lru_init(&binder_alloc_lru);
+ register_shrinker(&binder_shrinker);
+}
diff --git a/drivers/android/binder_alloc.h b/drivers/android/binder_alloc.h
new file mode 100644
index 000000000000..a3a3602c689c
--- /dev/null
+++ b/drivers/android/binder_alloc.h
@@ -0,0 +1,187 @@
+/*
+ * Copyright (C) 2017 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _LINUX_BINDER_ALLOC_H
+#define _LINUX_BINDER_ALLOC_H
+
+#include <linux/rbtree.h>
+#include <linux/list.h>
+#include <linux/mm.h>
+#include <linux/rtmutex.h>
+#include <linux/vmalloc.h>
+#include <linux/slab.h>
+#include <linux/list_lru.h>
+
+extern struct list_lru binder_alloc_lru;
+struct binder_transaction;
+
+/**
+ * struct binder_buffer - buffer used for binder transactions
+ * @entry: entry alloc->buffers
+ * @rb_node: node for allocated_buffers/free_buffers rb trees
+ * @free: true if buffer is free
+ * @allow_user_free: describe the second member of struct blah,
+ * @async_transaction: describe the second member of struct blah,
+ * @debug_id: describe the second member of struct blah,
+ * @transaction: describe the second member of struct blah,
+ * @target_node: describe the second member of struct blah,
+ * @data_size: describe the second member of struct blah,
+ * @offsets_size: describe the second member of struct blah,
+ * @extra_buffers_size: describe the second member of struct blah,
+ * @data:i describe the second member of struct blah,
+ *
+ * Bookkeeping structure for binder transaction buffers
+ */
+struct binder_buffer {
+ struct list_head entry; /* free and allocated entries by address */
+ struct rb_node rb_node; /* free entry by size or allocated entry */
+ /* by address */
+ unsigned free:1;
+ unsigned allow_user_free:1;
+ unsigned async_transaction:1;
+ unsigned free_in_progress:1;
+ unsigned debug_id:28;
+
+ struct binder_transaction *transaction;
+
+ struct binder_node *target_node;
+ size_t data_size;
+ size_t offsets_size;
+ size_t extra_buffers_size;
+ void *data;
+};
+
+/**
+ * struct binder_lru_page - page object used for binder shrinker
+ * @page_ptr: pointer to physical page in mmap'd space
+ * @lru: entry in binder_alloc_lru
+ * @alloc: binder_alloc for a proc
+ */
+struct binder_lru_page {
+ struct list_head lru;
+ struct page *page_ptr;
+ struct binder_alloc *alloc;
+};
+
+/**
+ * struct binder_alloc - per-binder proc state for binder allocator
+ * @vma: vm_area_struct passed to mmap_handler
+ * (invarient after mmap)
+ * @tsk: tid for task that called init for this proc
+ * (invariant after init)
+ * @vma_vm_mm: copy of vma->vm_mm (invarient after mmap)
+ * @buffer: base of per-proc address space mapped via mmap
+ * @user_buffer_offset: offset between user and kernel VAs for buffer
+ * @buffers: list of all buffers for this proc
+ * @free_buffers: rb tree of buffers available for allocation
+ * sorted by size
+ * @allocated_buffers: rb tree of allocated buffers sorted by address
+ * @free_async_space: VA space available for async buffers. This is
+ * initialized at mmap time to 1/2 the full VA space
+ * @pages: array of binder_lru_page
+ * @buffer_size: size of address space specified via mmap
+ * @pid: pid for associated binder_proc (invariant after init)
+ *
+ * Bookkeeping structure for per-proc address space management for binder
+ * buffers. It is normally initialized during binder_init() and binder_mmap()
+ * calls. The address space is used for both user-visible buffers and for
+ * struct binder_buffer objects used to track the user buffers
+ */
+struct binder_alloc {
+ struct mutex mutex;
+ struct task_struct *tsk;
+ struct vm_area_struct *vma;
+ struct mm_struct *vma_vm_mm;
+ void *buffer;
+ ptrdiff_t user_buffer_offset;
+ struct list_head buffers;
+ struct rb_root free_buffers;
+ struct rb_root allocated_buffers;
+ size_t free_async_space;
+ struct binder_lru_page *pages;
+ size_t buffer_size;
+ uint32_t buffer_free;
+ int pid;
+};
+
+#ifdef CONFIG_ANDROID_BINDER_IPC_SELFTEST
+void binder_selftest_alloc(struct binder_alloc *alloc);
+#else
+static inline void binder_selftest_alloc(struct binder_alloc *alloc) {}
+#endif
+enum lru_status binder_alloc_free_page(struct list_head *item,
+ struct list_lru_one *lru,
+ spinlock_t *lock, void *cb_arg);
+extern struct binder_buffer *binder_alloc_new_buf(struct binder_alloc *alloc,
+ size_t data_size,
+ size_t offsets_size,
+ size_t extra_buffers_size,
+ int is_async);
+extern void binder_alloc_init(struct binder_alloc *alloc);
+void binder_alloc_shrinker_init(void);
+extern void binder_alloc_vma_close(struct binder_alloc *alloc);
+extern struct binder_buffer *
+binder_alloc_prepare_to_free(struct binder_alloc *alloc,
+ uintptr_t user_ptr);
+extern void binder_alloc_free_buf(struct binder_alloc *alloc,
+ struct binder_buffer *buffer);
+extern int binder_alloc_mmap_handler(struct binder_alloc *alloc,
+ struct vm_area_struct *vma);
+extern void binder_alloc_deferred_release(struct binder_alloc *alloc);
+extern int binder_alloc_get_allocated_count(struct binder_alloc *alloc);
+extern void binder_alloc_print_allocated(struct seq_file *m,
+ struct binder_alloc *alloc);
+void binder_alloc_print_pages(struct seq_file *m,
+ struct binder_alloc *alloc);
+
+/**
+ * binder_alloc_get_free_async_space() - get free space available for async
+ * @alloc: binder_alloc for this proc
+ *
+ * Return: the bytes remaining in the address-space for async transactions
+ */
+static inline size_t
+binder_alloc_get_free_async_space(struct binder_alloc *alloc)
+{
+ size_t free_async_space;
+
+ mutex_lock(&alloc->mutex);
+ free_async_space = alloc->free_async_space;
+ mutex_unlock(&alloc->mutex);
+ return free_async_space;
+}
+
+/**
+ * binder_alloc_get_user_buffer_offset() - get offset between kernel/user addrs
+ * @alloc: binder_alloc for this proc
+ *
+ * Return: the offset between kernel and user-space addresses to use for
+ * virtual address conversion
+ */
+static inline ptrdiff_t
+binder_alloc_get_user_buffer_offset(struct binder_alloc *alloc)
+{
+ /*
+ * user_buffer_offset is constant if vma is set and
+ * undefined if vma is not set. It is possible to
+ * get here with !alloc->vma if the target process
+ * is dying while a transaction is being initiated.
+ * Returning the old value is ok in this case and
+ * the transaction will fail.
+ */
+ return alloc->user_buffer_offset;
+}
+
+#endif /* _LINUX_BINDER_ALLOC_H */
+
diff --git a/drivers/android/binder_alloc_selftest.c b/drivers/android/binder_alloc_selftest.c
new file mode 100644
index 000000000000..8bd7bcef967d
--- /dev/null
+++ b/drivers/android/binder_alloc_selftest.c
@@ -0,0 +1,310 @@
+/* binder_alloc_selftest.c
+ *
+ * Android IPC Subsystem
+ *
+ * Copyright (C) 2017 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/mm_types.h>
+#include <linux/err.h>
+#include "binder_alloc.h"
+
+#define BUFFER_NUM 5
+#define BUFFER_MIN_SIZE (PAGE_SIZE / 8)
+
+static bool binder_selftest_run = true;
+static int binder_selftest_failures;
+static DEFINE_MUTEX(binder_selftest_lock);
+
+/**
+ * enum buf_end_align_type - Page alignment of a buffer
+ * end with regard to the end of the previous buffer.
+ *
+ * In the pictures below, buf2 refers to the buffer we
+ * are aligning. buf1 refers to previous buffer by addr.
+ * Symbol [ means the start of a buffer, ] means the end
+ * of a buffer, and | means page boundaries.
+ */
+enum buf_end_align_type {
+ /**
+ * @SAME_PAGE_UNALIGNED: The end of this buffer is on
+ * the same page as the end of the previous buffer and
+ * is not page aligned. Examples:
+ * buf1 ][ buf2 ][ ...
+ * buf1 ]|[ buf2 ][ ...
+ */
+ SAME_PAGE_UNALIGNED = 0,
+ /**
+ * @SAME_PAGE_ALIGNED: When the end of the previous buffer
+ * is not page aligned, the end of this buffer is on the
+ * same page as the end of the previous buffer and is page
+ * aligned. When the previous buffer is page aligned, the
+ * end of this buffer is aligned to the next page boundary.
+ * Examples:
+ * buf1 ][ buf2 ]| ...
+ * buf1 ]|[ buf2 ]| ...
+ */
+ SAME_PAGE_ALIGNED,
+ /**
+ * @NEXT_PAGE_UNALIGNED: The end of this buffer is on
+ * the page next to the end of the previous buffer and
+ * is not page aligned. Examples:
+ * buf1 ][ buf2 | buf2 ][ ...
+ * buf1 ]|[ buf2 | buf2 ][ ...
+ */
+ NEXT_PAGE_UNALIGNED,
+ /**
+ * @NEXT_PAGE_ALIGNED: The end of this buffer is on
+ * the page next to the end of the previous buffer and
+ * is page aligned. Examples:
+ * buf1 ][ buf2 | buf2 ]| ...
+ * buf1 ]|[ buf2 | buf2 ]| ...
+ */
+ NEXT_PAGE_ALIGNED,
+ /**
+ * @NEXT_NEXT_UNALIGNED: The end of this buffer is on
+ * the page that follows the page after the end of the
+ * previous buffer and is not page aligned. Examples:
+ * buf1 ][ buf2 | buf2 | buf2 ][ ...
+ * buf1 ]|[ buf2 | buf2 | buf2 ][ ...
+ */
+ NEXT_NEXT_UNALIGNED,
+ LOOP_END,
+};
+
+static void pr_err_size_seq(size_t *sizes, int *seq)
+{
+ int i;
+
+ pr_err("alloc sizes: ");
+ for (i = 0; i < BUFFER_NUM; i++)
+ pr_cont("[%zu]", sizes[i]);
+ pr_cont("\n");
+ pr_err("free seq: ");
+ for (i = 0; i < BUFFER_NUM; i++)
+ pr_cont("[%d]", seq[i]);
+ pr_cont("\n");
+}
+
+static bool check_buffer_pages_allocated(struct binder_alloc *alloc,
+ struct binder_buffer *buffer,
+ size_t size)
+{
+ void *page_addr, *end;
+ int page_index;
+
+ end = (void *)PAGE_ALIGN((uintptr_t)buffer->data + size);
+ page_addr = buffer->data;
+ for (; page_addr < end; page_addr += PAGE_SIZE) {
+ page_index = (page_addr - alloc->buffer) / PAGE_SIZE;
+ if (!alloc->pages[page_index].page_ptr ||
+ !list_empty(&alloc->pages[page_index].lru)) {
+ pr_err("expect alloc but is %s at page index %d\n",
+ alloc->pages[page_index].page_ptr ?
+ "lru" : "free", page_index);
+ return false;
+ }
+ }
+ return true;
+}
+
+static void binder_selftest_alloc_buf(struct binder_alloc *alloc,
+ struct binder_buffer *buffers[],
+ size_t *sizes, int *seq)
+{
+ int i;
+
+ for (i = 0; i < BUFFER_NUM; i++) {
+ buffers[i] = binder_alloc_new_buf(alloc, sizes[i], 0, 0, 0);
+ if (IS_ERR(buffers[i]) ||
+ !check_buffer_pages_allocated(alloc, buffers[i],
+ sizes[i])) {
+ pr_err_size_seq(sizes, seq);
+ binder_selftest_failures++;
+ }
+ }
+}
+
+static void binder_selftest_free_buf(struct binder_alloc *alloc,
+ struct binder_buffer *buffers[],
+ size_t *sizes, int *seq, size_t end)
+{
+ int i;
+
+ for (i = 0; i < BUFFER_NUM; i++)
+ binder_alloc_free_buf(alloc, buffers[seq[i]]);
+
+ for (i = 0; i < end / PAGE_SIZE; i++) {
+ /**
+ * Error message on a free page can be false positive
+ * if binder shrinker ran during binder_alloc_free_buf
+ * calls above.
+ */
+ if (list_empty(&alloc->pages[i].lru)) {
+ pr_err_size_seq(sizes, seq);
+ pr_err("expect lru but is %s at page index %d\n",
+ alloc->pages[i].page_ptr ? "alloc" : "free", i);
+ binder_selftest_failures++;
+ }
+ }
+}
+
+static void binder_selftest_free_page(struct binder_alloc *alloc)
+{
+ int i;
+ unsigned long count;
+
+ while ((count = list_lru_count(&binder_alloc_lru))) {
+ list_lru_walk(&binder_alloc_lru, binder_alloc_free_page,
+ NULL, count);
+ }
+
+ for (i = 0; i < (alloc->buffer_size / PAGE_SIZE); i++) {
+ if (alloc->pages[i].page_ptr) {
+ pr_err("expect free but is %s at page index %d\n",
+ list_empty(&alloc->pages[i].lru) ?
+ "alloc" : "lru", i);
+ binder_selftest_failures++;
+ }
+ }
+}
+
+static void binder_selftest_alloc_free(struct binder_alloc *alloc,
+ size_t *sizes, int *seq, size_t end)
+{
+ struct binder_buffer *buffers[BUFFER_NUM];
+
+ binder_selftest_alloc_buf(alloc, buffers, sizes, seq);
+ binder_selftest_free_buf(alloc, buffers, sizes, seq, end);
+
+ /* Allocate from lru. */
+ binder_selftest_alloc_buf(alloc, buffers, sizes, seq);
+ if (list_lru_count(&binder_alloc_lru))
+ pr_err("lru list should be empty but is not\n");
+
+ binder_selftest_free_buf(alloc, buffers, sizes, seq, end);
+ binder_selftest_free_page(alloc);
+}
+
+static bool is_dup(int *seq, int index, int val)
+{
+ int i;
+
+ for (i = 0; i < index; i++) {
+ if (seq[i] == val)
+ return true;
+ }
+ return false;
+}
+
+/* Generate BUFFER_NUM factorial free orders. */
+static void binder_selftest_free_seq(struct binder_alloc *alloc,
+ size_t *sizes, int *seq,
+ int index, size_t end)
+{
+ int i;
+
+ if (index == BUFFER_NUM) {
+ binder_selftest_alloc_free(alloc, sizes, seq, end);
+ return;
+ }
+ for (i = 0; i < BUFFER_NUM; i++) {
+ if (is_dup(seq, index, i))
+ continue;
+ seq[index] = i;
+ binder_selftest_free_seq(alloc, sizes, seq, index + 1, end);
+ }
+}
+
+static void binder_selftest_alloc_size(struct binder_alloc *alloc,
+ size_t *end_offset)
+{
+ int i;
+ int seq[BUFFER_NUM] = {0};
+ size_t front_sizes[BUFFER_NUM];
+ size_t back_sizes[BUFFER_NUM];
+ size_t last_offset, offset = 0;
+
+ for (i = 0; i < BUFFER_NUM; i++) {
+ last_offset = offset;
+ offset = end_offset[i];
+ front_sizes[i] = offset - last_offset;
+ back_sizes[BUFFER_NUM - i - 1] = front_sizes[i];
+ }
+ /*
+ * Buffers share the first or last few pages.
+ * Only BUFFER_NUM - 1 buffer sizes are adjustable since
+ * we need one giant buffer before getting to the last page.
+ */
+ back_sizes[0] += alloc->buffer_size - end_offset[BUFFER_NUM - 1];
+ binder_selftest_free_seq(alloc, front_sizes, seq, 0,
+ end_offset[BUFFER_NUM - 1]);
+ binder_selftest_free_seq(alloc, back_sizes, seq, 0, alloc->buffer_size);
+}
+
+static void binder_selftest_alloc_offset(struct binder_alloc *alloc,
+ size_t *end_offset, int index)
+{
+ int align;
+ size_t end, prev;
+
+ if (index == BUFFER_NUM) {
+ binder_selftest_alloc_size(alloc, end_offset);
+ return;
+ }
+ prev = index == 0 ? 0 : end_offset[index - 1];
+ end = prev;
+
+ BUILD_BUG_ON(BUFFER_MIN_SIZE * BUFFER_NUM >= PAGE_SIZE);
+
+ for (align = SAME_PAGE_UNALIGNED; align < LOOP_END; align++) {
+ if (align % 2)
+ end = ALIGN(end, PAGE_SIZE);
+ else
+ end += BUFFER_MIN_SIZE;
+ end_offset[index] = end;
+ binder_selftest_alloc_offset(alloc, end_offset, index + 1);
+ }
+}
+
+/**
+ * binder_selftest_alloc() - Test alloc and free of buffer pages.
+ * @alloc: Pointer to alloc struct.
+ *
+ * Allocate BUFFER_NUM buffers to cover all page alignment cases,
+ * then free them in all orders possible. Check that pages are
+ * correctly allocated, put onto lru when buffers are freed, and
+ * are freed when binder_alloc_free_page is called.
+ */
+void binder_selftest_alloc(struct binder_alloc *alloc)
+{
+ size_t end_offset[BUFFER_NUM];
+
+ if (!binder_selftest_run)
+ return;
+ mutex_lock(&binder_selftest_lock);
+ if (!binder_selftest_run || !alloc->vma)
+ goto done;
+ pr_info("STARTED\n");
+ binder_selftest_alloc_offset(alloc, end_offset, 0);
+ binder_selftest_run = false;
+ if (binder_selftest_failures > 0)
+ pr_info("%d tests FAILED\n", binder_selftest_failures);
+ else
+ pr_info("PASSED\n");
+
+done:
+ mutex_unlock(&binder_selftest_lock);
+}
diff --git a/drivers/android/binder_trace.h b/drivers/android/binder_trace.h
index 7f20f3dc8369..76e3b9c8a8a2 100644
--- a/drivers/android/binder_trace.h
+++ b/drivers/android/binder_trace.h
@@ -23,7 +23,8 @@
struct binder_buffer;
struct binder_node;
struct binder_proc;
-struct binder_ref;
+struct binder_alloc;
+struct binder_ref_data;
struct binder_thread;
struct binder_transaction;
@@ -146,8 +147,8 @@ TRACE_EVENT(binder_transaction_received,
TRACE_EVENT(binder_transaction_node_to_ref,
TP_PROTO(struct binder_transaction *t, struct binder_node *node,
- struct binder_ref *ref),
- TP_ARGS(t, node, ref),
+ struct binder_ref_data *rdata),
+ TP_ARGS(t, node, rdata),
TP_STRUCT__entry(
__field(int, debug_id)
@@ -160,8 +161,8 @@ TRACE_EVENT(binder_transaction_node_to_ref,
__entry->debug_id = t->debug_id;
__entry->node_debug_id = node->debug_id;
__entry->node_ptr = node->ptr;
- __entry->ref_debug_id = ref->debug_id;
- __entry->ref_desc = ref->desc;
+ __entry->ref_debug_id = rdata->debug_id;
+ __entry->ref_desc = rdata->desc;
),
TP_printk("transaction=%d node=%d src_ptr=0x%016llx ==> dest_ref=%d dest_desc=%d",
__entry->debug_id, __entry->node_debug_id,
@@ -170,8 +171,9 @@ TRACE_EVENT(binder_transaction_node_to_ref,
);
TRACE_EVENT(binder_transaction_ref_to_node,
- TP_PROTO(struct binder_transaction *t, struct binder_ref *ref),
- TP_ARGS(t, ref),
+ TP_PROTO(struct binder_transaction *t, struct binder_node *node,
+ struct binder_ref_data *rdata),
+ TP_ARGS(t, node, rdata),
TP_STRUCT__entry(
__field(int, debug_id)
@@ -182,10 +184,10 @@ TRACE_EVENT(binder_transaction_ref_to_node,
),
TP_fast_assign(
__entry->debug_id = t->debug_id;
- __entry->ref_debug_id = ref->debug_id;
- __entry->ref_desc = ref->desc;
- __entry->node_debug_id = ref->node->debug_id;
- __entry->node_ptr = ref->node->ptr;
+ __entry->ref_debug_id = rdata->debug_id;
+ __entry->ref_desc = rdata->desc;
+ __entry->node_debug_id = node->debug_id;
+ __entry->node_ptr = node->ptr;
),
TP_printk("transaction=%d node=%d src_ref=%d src_desc=%d ==> dest_ptr=0x%016llx",
__entry->debug_id, __entry->node_debug_id,
@@ -194,9 +196,10 @@ TRACE_EVENT(binder_transaction_ref_to_node,
);
TRACE_EVENT(binder_transaction_ref_to_ref,
- TP_PROTO(struct binder_transaction *t, struct binder_ref *src_ref,
- struct binder_ref *dest_ref),
- TP_ARGS(t, src_ref, dest_ref),
+ TP_PROTO(struct binder_transaction *t, struct binder_node *node,
+ struct binder_ref_data *src_ref,
+ struct binder_ref_data *dest_ref),
+ TP_ARGS(t, node, src_ref, dest_ref),
TP_STRUCT__entry(
__field(int, debug_id)
@@ -208,7 +211,7 @@ TRACE_EVENT(binder_transaction_ref_to_ref,
),
TP_fast_assign(
__entry->debug_id = t->debug_id;
- __entry->node_debug_id = src_ref->node->debug_id;
+ __entry->node_debug_id = node->debug_id;
__entry->src_ref_debug_id = src_ref->debug_id;
__entry->src_ref_desc = src_ref->desc;
__entry->dest_ref_debug_id = dest_ref->debug_id;
@@ -268,9 +271,9 @@ DEFINE_EVENT(binder_buffer_class, binder_transaction_failed_buffer_release,
TP_ARGS(buffer));
TRACE_EVENT(binder_update_page_range,
- TP_PROTO(struct binder_proc *proc, bool allocate,
+ TP_PROTO(struct binder_alloc *alloc, bool allocate,
void *start, void *end),
- TP_ARGS(proc, allocate, start, end),
+ TP_ARGS(alloc, allocate, start, end),
TP_STRUCT__entry(
__field(int, proc)
__field(bool, allocate)
@@ -278,9 +281,9 @@ TRACE_EVENT(binder_update_page_range,
__field(size_t, size)
),
TP_fast_assign(
- __entry->proc = proc->pid;
+ __entry->proc = alloc->pid;
__entry->allocate = allocate;
- __entry->offset = start - proc->buffer;
+ __entry->offset = start - alloc->buffer;
__entry->size = end - start;
),
TP_printk("proc=%d allocate=%d offset=%zu size=%zu",
@@ -288,6 +291,61 @@ TRACE_EVENT(binder_update_page_range,
__entry->offset, __entry->size)
);
+DECLARE_EVENT_CLASS(binder_lru_page_class,
+ TP_PROTO(const struct binder_alloc *alloc, size_t page_index),
+ TP_ARGS(alloc, page_index),
+ TP_STRUCT__entry(
+ __field(int, proc)
+ __field(size_t, page_index)
+ ),
+ TP_fast_assign(
+ __entry->proc = alloc->pid;
+ __entry->page_index = page_index;
+ ),
+ TP_printk("proc=%d page_index=%zu",
+ __entry->proc, __entry->page_index)
+);
+
+DEFINE_EVENT(binder_lru_page_class, binder_alloc_lru_start,
+ TP_PROTO(const struct binder_alloc *alloc, size_t page_index),
+ TP_ARGS(alloc, page_index));
+
+DEFINE_EVENT(binder_lru_page_class, binder_alloc_lru_end,
+ TP_PROTO(const struct binder_alloc *alloc, size_t page_index),
+ TP_ARGS(alloc, page_index));
+
+DEFINE_EVENT(binder_lru_page_class, binder_free_lru_start,
+ TP_PROTO(const struct binder_alloc *alloc, size_t page_index),
+ TP_ARGS(alloc, page_index));
+
+DEFINE_EVENT(binder_lru_page_class, binder_free_lru_end,
+ TP_PROTO(const struct binder_alloc *alloc, size_t page_index),
+ TP_ARGS(alloc, page_index));
+
+DEFINE_EVENT(binder_lru_page_class, binder_alloc_page_start,
+ TP_PROTO(const struct binder_alloc *alloc, size_t page_index),
+ TP_ARGS(alloc, page_index));
+
+DEFINE_EVENT(binder_lru_page_class, binder_alloc_page_end,
+ TP_PROTO(const struct binder_alloc *alloc, size_t page_index),
+ TP_ARGS(alloc, page_index));
+
+DEFINE_EVENT(binder_lru_page_class, binder_unmap_user_start,
+ TP_PROTO(const struct binder_alloc *alloc, size_t page_index),
+ TP_ARGS(alloc, page_index));
+
+DEFINE_EVENT(binder_lru_page_class, binder_unmap_user_end,
+ TP_PROTO(const struct binder_alloc *alloc, size_t page_index),
+ TP_ARGS(alloc, page_index));
+
+DEFINE_EVENT(binder_lru_page_class, binder_unmap_kernel_start,
+ TP_PROTO(const struct binder_alloc *alloc, size_t page_index),
+ TP_ARGS(alloc, page_index));
+
+DEFINE_EVENT(binder_lru_page_class, binder_unmap_kernel_end,
+ TP_PROTO(const struct binder_alloc *alloc, size_t page_index),
+ TP_ARGS(alloc, page_index));
+
TRACE_EVENT(binder_command,
TP_PROTO(uint32_t cmd),
TP_ARGS(cmd),
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index de3eaf051697..488c93724220 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -153,6 +153,16 @@ config AHCI_CEVA
If unsure, say N.
+config AHCI_MTK
+ tristate "MediaTek AHCI SATA support"
+ depends on ARCH_MEDIATEK
+ select MFD_SYSCON
+ help
+ This option enables support for the MediaTek SoC's
+ onboard AHCI SATA controller.
+
+ If unsure, say N.
+
config AHCI_MVEBU
tristate "Marvell EBU AHCI SATA support"
depends on ARCH_MVEBU
@@ -213,6 +223,16 @@ config SATA_FSL
If unsure, say N.
+config SATA_GEMINI
+ tristate "Gemini SATA bridge support"
+ depends on ARCH_GEMINI || COMPILE_TEST
+ default ARCH_GEMINI
+ help
+ This enabled support for the FTIDE010 to SATA bridge
+ found in Cortina Systems Gemini platform.
+
+ If unsure, say N.
+
config SATA_AHCI_SEATTLE
tristate "AMD Seattle 6.0Gbps AHCI SATA host controller support"
depends on ARCH_SEATTLE
@@ -599,6 +619,17 @@ config PATA_EP93XX
If unsure, say N.
+config PATA_FTIDE010
+ tristate "Faraday Technology FTIDE010 PATA support"
+ depends on OF
+ depends on ARM
+ depends on SATA_GEMINI
+ help
+ This option enables support for the Faraday FTIDE010
+ PATA controller found in the Cortina Gemini SoCs.
+
+ If unsure, say N.
+
config PATA_HPT366
tristate "HPT 366/368 PATA support"
depends on PCI
diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile
index cd931a5eba92..ff9cd2e37458 100644
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -7,6 +7,7 @@ obj-$(CONFIG_SATA_ACARD_AHCI) += acard-ahci.o libahci.o
obj-$(CONFIG_SATA_AHCI_SEATTLE) += ahci_seattle.o libahci.o libahci_platform.o
obj-$(CONFIG_SATA_AHCI_PLATFORM) += ahci_platform.o libahci.o libahci_platform.o
obj-$(CONFIG_SATA_FSL) += sata_fsl.o
+obj-$(CONFIG_SATA_GEMINI) += sata_gemini.o
obj-$(CONFIG_SATA_INIC162X) += sata_inic162x.o
obj-$(CONFIG_SATA_SIL24) += sata_sil24.o
obj-$(CONFIG_SATA_DWC) += sata_dwc_460ex.o
@@ -16,6 +17,7 @@ obj-$(CONFIG_AHCI_CEVA) += ahci_ceva.o libahci.o libahci_platform.o
obj-$(CONFIG_AHCI_DA850) += ahci_da850.o libahci.o libahci_platform.o
obj-$(CONFIG_AHCI_DM816) += ahci_dm816.o libahci.o libahci_platform.o
obj-$(CONFIG_AHCI_IMX) += ahci_imx.o libahci.o libahci_platform.o
+obj-$(CONFIG_AHCI_MTK) += ahci_mtk.o libahci.o libahci_platform.o
obj-$(CONFIG_AHCI_MVEBU) += ahci_mvebu.o libahci.o libahci_platform.o
obj-$(CONFIG_AHCI_OCTEON) += ahci_octeon.o
obj-$(CONFIG_AHCI_SUNXI) += ahci_sunxi.o libahci.o libahci_platform.o
@@ -60,6 +62,7 @@ obj-$(CONFIG_PATA_CS5536) += pata_cs5536.o
obj-$(CONFIG_PATA_CYPRESS) += pata_cypress.o
obj-$(CONFIG_PATA_EFAR) += pata_efar.o
obj-$(CONFIG_PATA_EP93XX) += pata_ep93xx.o
+obj-$(CONFIG_PATA_FTIDE010) += pata_ftide010.o
obj-$(CONFIG_PATA_HPT366) += pata_hpt366.o
obj-$(CONFIG_PATA_HPT37X) += pata_hpt37x.o
obj-$(CONFIG_PATA_HPT3X2N) += pata_hpt3x2n.o
diff --git a/drivers/ata/acard-ahci.c b/drivers/ata/acard-ahci.c
index ed6a30cd681a..940ddbc59aa7 100644
--- a/drivers/ata/acard-ahci.c
+++ b/drivers/ata/acard-ahci.c
@@ -25,7 +25,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* AHCI hardware documentation:
* http://www.intel.com/technology/serialata/pdf/rev1_0.pdf
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index c69954023c2e..9f78bb03bb76 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -24,7 +24,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* AHCI hardware documentation:
* http://www.intel.com/technology/serialata/pdf/rev1_0.pdf
@@ -548,6 +548,8 @@ static const struct pci_device_id ahci_pci_tbl[] = {
{ PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci }, /* ASM1060 */
{ PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci }, /* ASM1061 */
{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci }, /* ASM1062 */
+ { PCI_VDEVICE(ASMEDIA, 0x0621), board_ahci }, /* ASM1061R */
+ { PCI_VDEVICE(ASMEDIA, 0x0622), board_ahci }, /* ASM1062R */
/*
* Samsung SSDs found on some macbooks. NCQ times out if MSI is
@@ -619,8 +621,11 @@ static void ahci_pci_save_initial_config(struct pci_dev *pdev,
static int ahci_pci_reset_controller(struct ata_host *host)
{
struct pci_dev *pdev = to_pci_dev(host->dev);
+ int rc;
- ahci_reset_controller(host);
+ rc = ahci_reset_controller(host);
+ if (rc)
+ return rc;
if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
struct ahci_host_priv *hpriv = host->private_data;
@@ -1467,7 +1472,14 @@ static void ahci_remap_check(struct pci_dev *pdev, int bar,
return;
dev_warn(&pdev->dev, "Found %d remapped NVMe devices.\n", count);
- dev_warn(&pdev->dev, "Switch your BIOS from RAID to AHCI mode to use them.\n");
+ dev_warn(&pdev->dev,
+ "Switch your BIOS from RAID to AHCI mode to use them.\n");
+
+ /*
+ * Don't rely on the msi-x capability in the remap case,
+ * share the legacy interrupt across ahci and remapped devices.
+ */
+ hpriv->flags |= AHCI_HFLAG_NO_MSI;
}
static int ahci_get_irq_vector(struct ata_host *host, int port)
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index 5db6ab261643..8b61123d2c3c 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -24,7 +24,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* AHCI hardware documentation:
* http://www.intel.com/technology/serialata/pdf/rev1_0.pdf
@@ -248,6 +248,9 @@ enum {
AHCI_HFLAG_MULTI_MSI = 0,
#endif
AHCI_HFLAG_WAKE_BEFORE_STOP = (1 << 22), /* wake before DMA stop */
+ AHCI_HFLAG_YES_ALPM = (1 << 23), /* force ALPM cap on */
+ AHCI_HFLAG_NO_WRITE_TO_RO = (1 << 24), /* don't write to read
+ only registers */
/* ap->flags bits */
diff --git a/drivers/ata/ahci_brcm.c b/drivers/ata/ahci_brcm.c
index 6f8a7341fa08..5936d1679bf3 100644
--- a/drivers/ata/ahci_brcm.c
+++ b/drivers/ata/ahci_brcm.c
@@ -39,7 +39,6 @@
#define PIODATA_ENDIAN_SHIFT 6
#define ENDIAN_SWAP_NONE 0
#define ENDIAN_SWAP_FULL 2
- #define OVERRIDE_HWINIT BIT(16)
#define SATA_TOP_CTRL_TP_CTRL 0x8
#define SATA_TOP_CTRL_PHY_CTRL 0xc
#define SATA_TOP_CTRL_PHY_CTRL_1 0x0
@@ -126,17 +125,13 @@ static inline void brcm_sata_writereg(u32 val, void __iomem *addr)
static void brcm_sata_alpm_init(struct ahci_host_priv *hpriv)
{
struct brcm_ahci_priv *priv = hpriv->plat_data;
- u32 bus_ctrl, port_ctrl, host_caps;
+ u32 port_ctrl, host_caps;
int i;
/* Enable support for ALPM */
- bus_ctrl = brcm_sata_readreg(priv->top_ctrl +
- SATA_TOP_CTRL_BUS_CTRL);
- brcm_sata_writereg(bus_ctrl | OVERRIDE_HWINIT,
- priv->top_ctrl + SATA_TOP_CTRL_BUS_CTRL);
host_caps = readl(hpriv->mmio + HOST_CAP);
- writel(host_caps | HOST_CAP_ALPM, hpriv->mmio);
- brcm_sata_writereg(bus_ctrl, priv->top_ctrl + SATA_TOP_CTRL_BUS_CTRL);
+ if (!(host_caps & HOST_CAP_ALPM))
+ hpriv->flags |= AHCI_HFLAG_YES_ALPM;
/*
* Adjust timeout to allow PLL sufficient time to lock while waking
@@ -360,6 +355,7 @@ static int brcm_ahci_probe(struct platform_device *pdev)
if (priv->quirks & BRCM_AHCI_QUIRK_NO_NCQ)
hpriv->flags |= AHCI_HFLAG_NO_NCQ;
+ hpriv->flags |= AHCI_HFLAG_NO_WRITE_TO_RO;
ret = ahci_platform_init_host(pdev, hpriv, &ahci_brcm_port_info,
&ahci_platform_sht);
diff --git a/drivers/ata/ahci_da850.c b/drivers/ata/ahci_da850.c
index 1a50cd3b4233..9b34dff64536 100644
--- a/drivers/ata/ahci_da850.c
+++ b/drivers/ata/ahci_da850.c
@@ -216,12 +216,16 @@ static int ahci_da850_probe(struct platform_device *pdev)
return rc;
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- if (!res)
+ if (!res) {
+ rc = -ENODEV;
goto disable_resources;
+ }
pwrdn_reg = devm_ioremap(dev, res->start, resource_size(res));
- if (!pwrdn_reg)
+ if (!pwrdn_reg) {
+ rc = -ENOMEM;
goto disable_resources;
+ }
da850_sata_init(dev, pwrdn_reg, hpriv->mmio, mpy);
diff --git a/drivers/ata/ahci_mtk.c b/drivers/ata/ahci_mtk.c
new file mode 100644
index 000000000000..80854f71559a
--- /dev/null
+++ b/drivers/ata/ahci_mtk.c
@@ -0,0 +1,196 @@
+/*
+ * MeidaTek AHCI SATA driver
+ *
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: Ryder Lee <ryder.lee@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/ahci_platform.h>
+#include <linux/kernel.h>
+#include <linux/libata.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+#include "ahci.h"
+
+#define DRV_NAME "ahci"
+
+#define SYS_CFG 0x14
+#define SYS_CFG_SATA_MSK GENMASK(31, 30)
+#define SYS_CFG_SATA_EN BIT(31)
+
+struct mtk_ahci_plat {
+ struct regmap *mode;
+ struct reset_control *axi_rst;
+ struct reset_control *sw_rst;
+ struct reset_control *reg_rst;
+};
+
+static const struct ata_port_info ahci_port_info = {
+ .flags = AHCI_FLAG_COMMON,
+ .pio_mask = ATA_PIO4,
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &ahci_platform_ops,
+};
+
+static struct scsi_host_template ahci_platform_sht = {
+ AHCI_SHT(DRV_NAME),
+};
+
+static int mtk_ahci_platform_resets(struct ahci_host_priv *hpriv,
+ struct device *dev)
+{
+ struct mtk_ahci_plat *plat = hpriv->plat_data;
+ int err;
+
+ /* reset AXI bus and PHY part */
+ plat->axi_rst = devm_reset_control_get_optional_exclusive(dev, "axi");
+ if (PTR_ERR(plat->axi_rst) == -EPROBE_DEFER)
+ return PTR_ERR(plat->axi_rst);
+
+ plat->sw_rst = devm_reset_control_get_optional_exclusive(dev, "sw");
+ if (PTR_ERR(plat->sw_rst) == -EPROBE_DEFER)
+ return PTR_ERR(plat->sw_rst);
+
+ plat->reg_rst = devm_reset_control_get_optional_exclusive(dev, "reg");
+ if (PTR_ERR(plat->reg_rst) == -EPROBE_DEFER)
+ return PTR_ERR(plat->reg_rst);
+
+ err = reset_control_assert(plat->axi_rst);
+ if (err) {
+ dev_err(dev, "failed to assert AXI bus\n");
+ return err;
+ }
+
+ err = reset_control_assert(plat->sw_rst);
+ if (err) {
+ dev_err(dev, "failed to assert PHY digital part\n");
+ return err;
+ }
+
+ err = reset_control_assert(plat->reg_rst);
+ if (err) {
+ dev_err(dev, "failed to assert PHY register part\n");
+ return err;
+ }
+
+ err = reset_control_deassert(plat->reg_rst);
+ if (err) {
+ dev_err(dev, "failed to deassert PHY register part\n");
+ return err;
+ }
+
+ err = reset_control_deassert(plat->sw_rst);
+ if (err) {
+ dev_err(dev, "failed to deassert PHY digital part\n");
+ return err;
+ }
+
+ err = reset_control_deassert(plat->axi_rst);
+ if (err) {
+ dev_err(dev, "failed to deassert AXI bus\n");
+ return err;
+ }
+
+ return 0;
+}
+
+static int mtk_ahci_parse_property(struct ahci_host_priv *hpriv,
+ struct device *dev)
+{
+ struct mtk_ahci_plat *plat = hpriv->plat_data;
+ struct device_node *np = dev->of_node;
+
+ /* enable SATA function if needed */
+ if (of_find_property(np, "mediatek,phy-mode", NULL)) {
+ plat->mode = syscon_regmap_lookup_by_phandle(
+ np, "mediatek,phy-mode");
+ if (IS_ERR(plat->mode)) {
+ dev_err(dev, "missing phy-mode phandle\n");
+ return PTR_ERR(plat->mode);
+ }
+
+ regmap_update_bits(plat->mode, SYS_CFG, SYS_CFG_SATA_MSK,
+ SYS_CFG_SATA_EN);
+ }
+
+ of_property_read_u32(np, "ports-implemented", &hpriv->force_port_map);
+
+ return 0;
+}
+
+static int mtk_ahci_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct mtk_ahci_plat *plat;
+ struct ahci_host_priv *hpriv;
+ int err;
+
+ plat = devm_kzalloc(dev, sizeof(*plat), GFP_KERNEL);
+ if (!plat)
+ return -ENOMEM;
+
+ hpriv = ahci_platform_get_resources(pdev);
+ if (IS_ERR(hpriv))
+ return PTR_ERR(hpriv);
+
+ hpriv->plat_data = plat;
+
+ err = mtk_ahci_parse_property(hpriv, dev);
+ if (err)
+ return err;
+
+ err = mtk_ahci_platform_resets(hpriv, dev);
+ if (err)
+ return err;
+
+ err = ahci_platform_enable_resources(hpriv);
+ if (err)
+ return err;
+
+ err = ahci_platform_init_host(pdev, hpriv, &ahci_port_info,
+ &ahci_platform_sht);
+ if (err)
+ goto disable_resources;
+
+ return 0;
+
+disable_resources:
+ ahci_platform_disable_resources(hpriv);
+ return err;
+}
+
+static SIMPLE_DEV_PM_OPS(ahci_pm_ops, ahci_platform_suspend,
+ ahci_platform_resume);
+
+static const struct of_device_id ahci_of_match[] = {
+ { .compatible = "mediatek,mtk-ahci", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, ahci_of_match);
+
+static struct platform_driver mtk_ahci_driver = {
+ .probe = mtk_ahci_probe,
+ .remove = ata_platform_remove_one,
+ .driver = {
+ .name = DRV_NAME,
+ .of_match_table = ahci_of_match,
+ .pm = &ahci_pm_ops,
+ },
+};
+module_platform_driver(mtk_ahci_driver);
+
+MODULE_DESCRIPTION("MeidaTek SATA AHCI Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
index 62a04c8fb5c9..99f9a895a459 100644
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -93,6 +93,7 @@ MODULE_DEVICE_TABLE(acpi, ahci_acpi_match);
static struct platform_driver ahci_driver = {
.probe = ahci_probe,
.remove = ata_platform_remove_one,
+ .shutdown = ahci_platform_shutdown,
.driver = {
.name = DRV_NAME,
.of_match_table = ahci_of_match,
diff --git a/drivers/ata/ahci_qoriq.c b/drivers/ata/ahci_qoriq.c
index 4c96f3ac4976..b6b0bf76dfc7 100644
--- a/drivers/ata/ahci_qoriq.c
+++ b/drivers/ata/ahci_qoriq.c
@@ -47,12 +47,14 @@
#define SATA_ECC_DISABLE 0x00020000
#define ECC_DIS_ARMV8_CH2 0x80000000
+#define ECC_DIS_LS1088A 0x40000000
enum ahci_qoriq_type {
AHCI_LS1021A,
AHCI_LS1043A,
AHCI_LS2080A,
AHCI_LS1046A,
+ AHCI_LS1088A,
AHCI_LS2088A,
};
@@ -68,6 +70,7 @@ static const struct of_device_id ahci_qoriq_of_match[] = {
{ .compatible = "fsl,ls1043a-ahci", .data = (void *)AHCI_LS1043A},
{ .compatible = "fsl,ls2080a-ahci", .data = (void *)AHCI_LS2080A},
{ .compatible = "fsl,ls1046a-ahci", .data = (void *)AHCI_LS1046A},
+ { .compatible = "fsl,ls1088a-ahci", .data = (void *)AHCI_LS1088A},
{ .compatible = "fsl,ls2088a-ahci", .data = (void *)AHCI_LS2088A},
{},
};
@@ -203,6 +206,17 @@ static int ahci_qoriq_phy_init(struct ahci_host_priv *hpriv)
writel(AHCI_PORT_AXICC_CFG, reg_base + PORT_AXICC);
break;
+ case AHCI_LS1088A:
+ if (!qpriv->ecc_addr)
+ return -EINVAL;
+ writel(readl(qpriv->ecc_addr) | ECC_DIS_LS1088A,
+ qpriv->ecc_addr);
+ writel(AHCI_PORT_PHY_1_CFG, reg_base + PORT_PHY1);
+ writel(AHCI_PORT_TRANS_CFG, reg_base + PORT_TRANS);
+ if (qpriv->is_dmacoherent)
+ writel(AHCI_PORT_AXICC_CFG, reg_base + PORT_AXICC);
+ break;
+
case AHCI_LS2088A:
writel(AHCI_PORT_PHY_1_CFG, reg_base + PORT_PHY1);
writel(AHCI_PORT_TRANS_CFG, reg_base + PORT_TRANS);
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index ffbe625e6fd2..b702c20fbc2b 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -33,7 +33,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* Hardware documentation available at http://developer.intel.com/
*
@@ -492,6 +492,7 @@ static const struct ich_laptop ich_laptop[] = {
{ 0x27DF, 0x152D, 0x0778 }, /* ICH7 on unknown Intel */
{ 0x24CA, 0x1025, 0x0061 }, /* ICH4 on ACER Aspire 2023WLMi */
{ 0x24CA, 0x1025, 0x003d }, /* ICH4 on ACER TM290 */
+ { 0x24CA, 0x10CF, 0x11AB }, /* ICH4M on Fujitsu-Siemens Lifebook S6120 */
{ 0x266F, 0x1025, 0x0066 }, /* ICH6 on ACER Aspire 1694WLMi */
{ 0x2653, 0x1043, 0x82D8 }, /* ICH6M on Asus Eee 701 */
{ 0x27df, 0x104d, 0x900e }, /* ICH7 on Sony TZ-90 */
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 3159f9e66d8f..3e286d86ab42 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -24,7 +24,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* AHCI hardware documentation:
* http://www.intel.com/technology/serialata/pdf/rev1_0.pdf
@@ -504,6 +504,11 @@ void ahci_save_initial_config(struct device *dev, struct ahci_host_priv *hpriv)
cap &= ~HOST_CAP_FBS;
}
+ if (!(cap & HOST_CAP_ALPM) && (hpriv->flags & AHCI_HFLAG_YES_ALPM)) {
+ dev_info(dev, "controller can do ALPM, turning on CAP_ALPM\n");
+ cap |= HOST_CAP_ALPM;
+ }
+
if (hpriv->force_port_map && port_map != hpriv->force_port_map) {
dev_info(dev, "forcing port_map 0x%x -> 0x%x\n",
port_map, hpriv->force_port_map);
@@ -940,7 +945,8 @@ int ahci_reset_controller(struct ata_host *host)
/* Some registers might be cleared on reset. Restore
* initial values.
*/
- ahci_restore_initial_config(host);
+ if (!(hpriv->flags & AHCI_HFLAG_NO_WRITE_TO_RO))
+ ahci_restore_initial_config(host);
} else
dev_info(host->dev, "skipping global host reset\n");
@@ -1400,7 +1406,7 @@ int ahci_do_softreset(struct ata_link *link, unsigned int *class,
ata_tf_init(link->device, &tf);
- /* issue the first D2H Register FIS */
+ /* issue the first H2D Register FIS */
msecs = 0;
now = jiffies;
if (time_after(deadline, now))
@@ -1417,7 +1423,7 @@ int ahci_do_softreset(struct ata_link *link, unsigned int *class,
/* spec says at least 5us, but be generous and sleep for 1ms */
ata_msleep(ap, 1);
- /* issue the second D2H Register FIS */
+ /* issue the second H2D Register FIS */
tf.ctl &= ~ATA_SRST;
ahci_exec_polled_cmd(ap, pmp, &tf, 0, 0, 0);
diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c
index cd2eab6aa92e..a270a1173c8c 100644
--- a/drivers/ata/libahci_platform.c
+++ b/drivers/ata/libahci_platform.c
@@ -602,6 +602,40 @@ static void ahci_host_stop(struct ata_host *host)
ahci_platform_disable_resources(hpriv);
}
+/**
+ * ahci_platform_shutdown - Disable interrupts and stop DMA for host ports
+ * @dev: platform device pointer for the host
+ *
+ * This function is called during system shutdown and performs the minimal
+ * deconfiguration required to ensure that an ahci_platform host cannot
+ * corrupt or otherwise interfere with a new kernel being started with kexec.
+ */
+void ahci_platform_shutdown(struct platform_device *pdev)
+{
+ struct ata_host *host = platform_get_drvdata(pdev);
+ struct ahci_host_priv *hpriv = host->private_data;
+ void __iomem *mmio = hpriv->mmio;
+ int i;
+
+ for (i = 0; i < host->n_ports; i++) {
+ struct ata_port *ap = host->ports[i];
+
+ /* Disable port interrupts */
+ if (ap->ops->freeze)
+ ap->ops->freeze(ap);
+
+ /* Stop the port DMA engines */
+ if (ap->ops->port_stop)
+ ap->ops->port_stop(ap);
+ }
+
+ /* Disable and clear host interrupts */
+ writel(readl(mmio + HOST_CTL) & ~HOST_IRQ_EN, mmio + HOST_CTL);
+ readl(mmio + HOST_CTL); /* flush */
+ writel(GENMASK(host->n_ports, 0), mmio + HOST_IRQ_STAT);
+}
+EXPORT_SYMBOL_GPL(ahci_platform_shutdown);
+
#ifdef CONFIG_PM_SLEEP
/**
* ahci_platform_suspend_host - Suspend an ahci-platform host
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index e157a0e44419..ee4c1ec9dca0 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -25,7 +25,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* Hardware documentation available from http://www.t13.org/ and
* http://www.sata-io.org/
@@ -2047,6 +2047,110 @@ retry:
return rc;
}
+/**
+ * ata_read_log_page - read a specific log page
+ * @dev: target device
+ * @log: log to read
+ * @page: page to read
+ * @buf: buffer to store read page
+ * @sectors: number of sectors to read
+ *
+ * Read log page using READ_LOG_EXT command.
+ *
+ * LOCKING:
+ * Kernel thread context (may sleep).
+ *
+ * RETURNS:
+ * 0 on success, AC_ERR_* mask otherwise.
+ */
+unsigned int ata_read_log_page(struct ata_device *dev, u8 log,
+ u8 page, void *buf, unsigned int sectors)
+{
+ unsigned long ap_flags = dev->link->ap->flags;
+ struct ata_taskfile tf;
+ unsigned int err_mask;
+ bool dma = false;
+
+ DPRINTK("read log page - log 0x%x, page 0x%x\n", log, page);
+
+ /*
+ * Return error without actually issuing the command on controllers
+ * which e.g. lockup on a read log page.
+ */
+ if (ap_flags & ATA_FLAG_NO_LOG_PAGE)
+ return AC_ERR_DEV;
+
+retry:
+ ata_tf_init(dev, &tf);
+ if (dev->dma_mode && ata_id_has_read_log_dma_ext(dev->id) &&
+ !(dev->horkage & ATA_HORKAGE_NO_DMA_LOG)) {
+ tf.command = ATA_CMD_READ_LOG_DMA_EXT;
+ tf.protocol = ATA_PROT_DMA;
+ dma = true;
+ } else {
+ tf.command = ATA_CMD_READ_LOG_EXT;
+ tf.protocol = ATA_PROT_PIO;
+ dma = false;
+ }
+ tf.lbal = log;
+ tf.lbam = page;
+ tf.nsect = sectors;
+ tf.hob_nsect = sectors >> 8;
+ tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_LBA48 | ATA_TFLAG_DEVICE;
+
+ err_mask = ata_exec_internal(dev, &tf, NULL, DMA_FROM_DEVICE,
+ buf, sectors * ATA_SECT_SIZE, 0);
+
+ if (err_mask && dma) {
+ dev->horkage |= ATA_HORKAGE_NO_DMA_LOG;
+ ata_dev_warn(dev, "READ LOG DMA EXT failed, trying PIO\n");
+ goto retry;
+ }
+
+ DPRINTK("EXIT, err_mask=%x\n", err_mask);
+ return err_mask;
+}
+
+static bool ata_log_supported(struct ata_device *dev, u8 log)
+{
+ struct ata_port *ap = dev->link->ap;
+
+ if (ata_read_log_page(dev, ATA_LOG_DIRECTORY, 0, ap->sector_buf, 1))
+ return false;
+ return get_unaligned_le16(&ap->sector_buf[log * 2]) ? true : false;
+}
+
+static bool ata_identify_page_supported(struct ata_device *dev, u8 page)
+{
+ struct ata_port *ap = dev->link->ap;
+ unsigned int err, i;
+
+ if (!ata_log_supported(dev, ATA_LOG_IDENTIFY_DEVICE)) {
+ ata_dev_warn(dev, "ATA Identify Device Log not supported\n");
+ return false;
+ }
+
+ /*
+ * Read IDENTIFY DEVICE data log, page 0, to figure out if the page is
+ * supported.
+ */
+ err = ata_read_log_page(dev, ATA_LOG_IDENTIFY_DEVICE, 0, ap->sector_buf,
+ 1);
+ if (err) {
+ ata_dev_info(dev,
+ "failed to get Device Identify Log Emask 0x%x\n",
+ err);
+ return false;
+ }
+
+ for (i = 0; i < ap->sector_buf[8]; i++) {
+ if (ap->sector_buf[9 + i] == page)
+ return true;
+ }
+
+ return false;
+}
+
static int ata_do_link_spd_horkage(struct ata_device *dev)
{
struct ata_link *plink = ata_dev_phys_link(dev);
@@ -2094,21 +2198,9 @@ static void ata_dev_config_ncq_send_recv(struct ata_device *dev)
{
struct ata_port *ap = dev->link->ap;
unsigned int err_mask;
- int log_index = ATA_LOG_NCQ_SEND_RECV * 2;
- u16 log_pages;
- err_mask = ata_read_log_page(dev, ATA_LOG_DIRECTORY,
- 0, ap->sector_buf, 1);
- if (err_mask) {
- ata_dev_dbg(dev,
- "failed to get Log Directory Emask 0x%x\n",
- err_mask);
- return;
- }
- log_pages = get_unaligned_le16(&ap->sector_buf[log_index]);
- if (!log_pages) {
- ata_dev_warn(dev,
- "NCQ Send/Recv Log not supported\n");
+ if (!ata_log_supported(dev, ATA_LOG_NCQ_SEND_RECV)) {
+ ata_dev_warn(dev, "NCQ Send/Recv Log not supported\n");
return;
}
err_mask = ata_read_log_page(dev, ATA_LOG_NCQ_SEND_RECV,
@@ -2135,19 +2227,8 @@ static void ata_dev_config_ncq_non_data(struct ata_device *dev)
{
struct ata_port *ap = dev->link->ap;
unsigned int err_mask;
- int log_index = ATA_LOG_NCQ_NON_DATA * 2;
- u16 log_pages;
- err_mask = ata_read_log_page(dev, ATA_LOG_DIRECTORY,
- 0, ap->sector_buf, 1);
- if (err_mask) {
- ata_dev_dbg(dev,
- "failed to get Log Directory Emask 0x%x\n",
- err_mask);
- return;
- }
- log_pages = get_unaligned_le16(&ap->sector_buf[log_index]);
- if (!log_pages) {
+ if (!ata_log_supported(dev, ATA_LOG_NCQ_NON_DATA)) {
ata_dev_warn(dev,
"NCQ Send/Recv Log not supported\n");
return;
@@ -2176,7 +2257,7 @@ static void ata_dev_config_ncq_prio(struct ata_device *dev)
}
err_mask = ata_read_log_page(dev,
- ATA_LOG_SATA_ID_DEV_DATA,
+ ATA_LOG_IDENTIFY_DEVICE,
ATA_LOG_SATA_SETTINGS,
ap->sector_buf,
1);
@@ -2275,8 +2356,6 @@ static void ata_dev_config_zac(struct ata_device *dev)
struct ata_port *ap = dev->link->ap;
unsigned int err_mask;
u8 *identify_buf = ap->sector_buf;
- int log_index = ATA_LOG_SATA_ID_DEV_DATA * 2, i, found = 0;
- u16 log_pages;
dev->zac_zones_optimal_open = U32_MAX;
dev->zac_zones_optimal_nonseq = U32_MAX;
@@ -2296,44 +2375,7 @@ static void ata_dev_config_zac(struct ata_device *dev)
if (!(dev->flags & ATA_DFLAG_ZAC))
return;
- /*
- * Read Log Directory to figure out if IDENTIFY DEVICE log
- * is supported.
- */
- err_mask = ata_read_log_page(dev, ATA_LOG_DIRECTORY,
- 0, ap->sector_buf, 1);
- if (err_mask) {
- ata_dev_info(dev,
- "failed to get Log Directory Emask 0x%x\n",
- err_mask);
- return;
- }
- log_pages = get_unaligned_le16(&ap->sector_buf[log_index]);
- if (log_pages == 0) {
- ata_dev_warn(dev,
- "ATA Identify Device Log not supported\n");
- return;
- }
- /*
- * Read IDENTIFY DEVICE data log, page 0, to figure out
- * if page 9 is supported.
- */
- err_mask = ata_read_log_page(dev, ATA_LOG_SATA_ID_DEV_DATA, 0,
- identify_buf, 1);
- if (err_mask) {
- ata_dev_info(dev,
- "failed to get Device Identify Log Emask 0x%x\n",
- err_mask);
- return;
- }
- log_pages = identify_buf[8];
- for (i = 0; i < log_pages; i++) {
- if (identify_buf[9 + i] == ATA_LOG_ZONED_INFORMATION) {
- found++;
- break;
- }
- }
- if (!found) {
+ if (!ata_identify_page_supported(dev, ATA_LOG_ZONED_INFORMATION)) {
ata_dev_warn(dev,
"ATA Zoned Information Log not supported\n");
return;
@@ -2342,7 +2384,7 @@ static void ata_dev_config_zac(struct ata_device *dev)
/*
* Read IDENTIFY DEVICE data log, page 9 (Zoned-device information)
*/
- err_mask = ata_read_log_page(dev, ATA_LOG_SATA_ID_DEV_DATA,
+ err_mask = ata_read_log_page(dev, ATA_LOG_IDENTIFY_DEVICE,
ATA_LOG_ZONED_INFORMATION,
identify_buf, 1);
if (!err_mask) {
@@ -2363,6 +2405,40 @@ static void ata_dev_config_zac(struct ata_device *dev)
}
}
+static void ata_dev_config_trusted(struct ata_device *dev)
+{
+ struct ata_port *ap = dev->link->ap;
+ u64 trusted_cap;
+ unsigned int err;
+
+ if (!ata_id_has_trusted(dev->id))
+ return;
+
+ if (!ata_identify_page_supported(dev, ATA_LOG_SECURITY)) {
+ ata_dev_warn(dev,
+ "Security Log not supported\n");
+ return;
+ }
+
+ err = ata_read_log_page(dev, ATA_LOG_IDENTIFY_DEVICE, ATA_LOG_SECURITY,
+ ap->sector_buf, 1);
+ if (err) {
+ ata_dev_dbg(dev,
+ "failed to read Security Log, Emask 0x%x\n", err);
+ return;
+ }
+
+ trusted_cap = get_unaligned_le64(&ap->sector_buf[40]);
+ if (!(trusted_cap & (1ULL << 63))) {
+ ata_dev_dbg(dev,
+ "Trusted Computing capability qword not valid!\n");
+ return;
+ }
+
+ if (trusted_cap & (1 << 0))
+ dev->flags |= ATA_DFLAG_TRUSTED;
+}
+
/**
* ata_dev_configure - Configure the specified ATA/ATAPI device
* @dev: Target device to configure
@@ -2571,7 +2647,7 @@ int ata_dev_configure(struct ata_device *dev)
dev->flags |= ATA_DFLAG_DEVSLP;
err_mask = ata_read_log_page(dev,
- ATA_LOG_SATA_ID_DEV_DATA,
+ ATA_LOG_IDENTIFY_DEVICE,
ATA_LOG_SATA_SETTINGS,
sata_setting,
1);
@@ -2587,7 +2663,8 @@ int ata_dev_configure(struct ata_device *dev)
}
ata_dev_config_sense_reporting(dev);
ata_dev_config_zac(dev);
- dev->cdb_len = 16;
+ ata_dev_config_trusted(dev);
+ dev->cdb_len = 32;
}
/* ATAPI-specific feature tests */
@@ -3157,19 +3234,19 @@ static const struct ata_timing ata_timing[] = {
};
#define ENOUGH(v, unit) (((v)-1)/(unit)+1)
-#define EZ(v, unit) ((v)?ENOUGH(v, unit):0)
+#define EZ(v, unit) ((v)?ENOUGH(((v) * 1000), unit):0)
static void ata_timing_quantize(const struct ata_timing *t, struct ata_timing *q, int T, int UT)
{
- q->setup = EZ(t->setup * 1000, T);
- q->act8b = EZ(t->act8b * 1000, T);
- q->rec8b = EZ(t->rec8b * 1000, T);
- q->cyc8b = EZ(t->cyc8b * 1000, T);
- q->active = EZ(t->active * 1000, T);
- q->recover = EZ(t->recover * 1000, T);
- q->dmack_hold = EZ(t->dmack_hold * 1000, T);
- q->cycle = EZ(t->cycle * 1000, T);
- q->udma = EZ(t->udma * 1000, UT);
+ q->setup = EZ(t->setup, T);
+ q->act8b = EZ(t->act8b, T);
+ q->rec8b = EZ(t->rec8b, T);
+ q->cyc8b = EZ(t->cyc8b, T);
+ q->active = EZ(t->active, T);
+ q->recover = EZ(t->recover, T);
+ q->dmack_hold = EZ(t->dmack_hold, T);
+ q->cycle = EZ(t->cycle, T);
+ q->udma = EZ(t->udma, UT);
}
void ata_timing_merge(const struct ata_timing *a, const struct ata_timing *b,
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index ef68232b5222..e4effef0c83f 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -25,7 +25,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* Hardware documentation available from http://www.t13.org/ and
* http://www.sata-io.org/
@@ -645,12 +645,11 @@ void ata_scsi_cmd_error_handler(struct Scsi_Host *host, struct ata_port *ap,
* completions are honored. A scmd is determined to have
* timed out iff its associated qc is active and not failed.
*/
+ spin_lock_irqsave(ap->lock, flags);
if (ap->ops->error_handler) {
struct scsi_cmnd *scmd, *tmp;
int nr_timedout = 0;
- spin_lock_irqsave(ap->lock, flags);
-
/* This must occur under the ap->lock as we don't want
a polled recovery to race the real interrupt handler
@@ -700,12 +699,11 @@ void ata_scsi_cmd_error_handler(struct Scsi_Host *host, struct ata_port *ap,
if (nr_timedout)
__ata_port_freeze(ap);
- spin_unlock_irqrestore(ap->lock, flags);
/* initialize eh_tries */
ap->eh_tries = ATA_EH_MAX_TRIES;
- } else
- spin_unlock_wait(ap->lock);
+ }
+ spin_unlock_irqrestore(ap->lock, flags);
}
EXPORT_SYMBOL(ata_scsi_cmd_error_handler);
@@ -1434,7 +1432,7 @@ void ata_eh_about_to_do(struct ata_link *link, struct ata_device *dev,
/**
* ata_eh_done - EH action complete
-* @ap: target ATA port
+ * @link: ATA link for which EH actions are complete
* @dev: target ATA dev for per-dev action (can be NULL)
* @action: action just completed
*
@@ -1488,70 +1486,6 @@ static const char *ata_err_string(unsigned int err_mask)
}
/**
- * ata_read_log_page - read a specific log page
- * @dev: target device
- * @log: log to read
- * @page: page to read
- * @buf: buffer to store read page
- * @sectors: number of sectors to read
- *
- * Read log page using READ_LOG_EXT command.
- *
- * LOCKING:
- * Kernel thread context (may sleep).
- *
- * RETURNS:
- * 0 on success, AC_ERR_* mask otherwise.
- */
-unsigned int ata_read_log_page(struct ata_device *dev, u8 log,
- u8 page, void *buf, unsigned int sectors)
-{
- unsigned long ap_flags = dev->link->ap->flags;
- struct ata_taskfile tf;
- unsigned int err_mask;
- bool dma = false;
-
- DPRINTK("read log page - log 0x%x, page 0x%x\n", log, page);
-
- /*
- * Return error without actually issuing the command on controllers
- * which e.g. lockup on a read log page.
- */
- if (ap_flags & ATA_FLAG_NO_LOG_PAGE)
- return AC_ERR_DEV;
-
-retry:
- ata_tf_init(dev, &tf);
- if (dev->dma_mode && ata_id_has_read_log_dma_ext(dev->id) &&
- !(dev->horkage & ATA_HORKAGE_NO_NCQ_LOG)) {
- tf.command = ATA_CMD_READ_LOG_DMA_EXT;
- tf.protocol = ATA_PROT_DMA;
- dma = true;
- } else {
- tf.command = ATA_CMD_READ_LOG_EXT;
- tf.protocol = ATA_PROT_PIO;
- dma = false;
- }
- tf.lbal = log;
- tf.lbam = page;
- tf.nsect = sectors;
- tf.hob_nsect = sectors >> 8;
- tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_LBA48 | ATA_TFLAG_DEVICE;
-
- err_mask = ata_exec_internal(dev, &tf, NULL, DMA_FROM_DEVICE,
- buf, sectors * ATA_SECT_SIZE, 0);
-
- if (err_mask && dma) {
- dev->horkage |= ATA_HORKAGE_NO_NCQ_LOG;
- ata_dev_warn(dev, "READ LOG DMA EXT failed, trying unqueued\n");
- goto retry;
- }
-
- DPRINTK("EXIT, err_mask=%x\n", err_mask);
- return err_mask;
-}
-
-/**
* ata_eh_read_log_10h - Read log page 10h for NCQ error details
* @dev: Device to read log page 10h from
* @tag: Resulting tag of the failed command
@@ -1640,7 +1574,7 @@ unsigned int atapi_eh_tur(struct ata_device *dev, u8 *r_sense_key)
/**
* ata_eh_request_sense - perform REQUEST_SENSE_DATA_EXT
- * @dev: device to perform REQUEST_SENSE_SENSE_DATA_EXT to
+ * @qc: qc to perform REQUEST_SENSE_SENSE_DATA_EXT to
* @cmd: scsi command for which the sense code should be set
*
* Perform REQUEST_SENSE_DATA_EXT after the device reported CHECK
@@ -4239,7 +4173,6 @@ static void ata_eh_handle_port_resume(struct ata_port *ap)
struct ata_link *link;
struct ata_device *dev;
unsigned long flags;
- int rc = 0;
/* are we resuming? */
spin_lock_irqsave(ap->lock, flags);
@@ -4266,7 +4199,7 @@ static void ata_eh_handle_port_resume(struct ata_port *ap)
ata_acpi_set_state(ap, ap->pm_mesg);
if (ap->ops->port_resume)
- rc = ap->ops->port_resume(ap);
+ ap->ops->port_resume(ap);
/* tell ACPI that we're resuming */
ata_acpi_on_resume(ap);
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 49ba9834c715..44ba292f2cd7 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -25,7 +25,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* Hardware documentation available from
* - http://www.t10.org/
@@ -903,32 +903,32 @@ static void ata_dump_status(unsigned id, struct ata_taskfile *tf)
{
u8 stat = tf->command, err = tf->feature;
- printk(KERN_WARNING "ata%u: status=0x%02x { ", id, stat);
+ pr_warn("ata%u: status=0x%02x { ", id, stat);
if (stat & ATA_BUSY) {
- printk("Busy }\n"); /* Data is not valid in this case */
+ pr_cont("Busy }\n"); /* Data is not valid in this case */
} else {
- if (stat & ATA_DRDY) printk("DriveReady ");
- if (stat & ATA_DF) printk("DeviceFault ");
- if (stat & ATA_DSC) printk("SeekComplete ");
- if (stat & ATA_DRQ) printk("DataRequest ");
- if (stat & ATA_CORR) printk("CorrectedError ");
- if (stat & ATA_SENSE) printk("Sense ");
- if (stat & ATA_ERR) printk("Error ");
- printk("}\n");
+ if (stat & ATA_DRDY) pr_cont("DriveReady ");
+ if (stat & ATA_DF) pr_cont("DeviceFault ");
+ if (stat & ATA_DSC) pr_cont("SeekComplete ");
+ if (stat & ATA_DRQ) pr_cont("DataRequest ");
+ if (stat & ATA_CORR) pr_cont("CorrectedError ");
+ if (stat & ATA_SENSE) pr_cont("Sense ");
+ if (stat & ATA_ERR) pr_cont("Error ");
+ pr_cont("}\n");
if (err) {
- printk(KERN_WARNING "ata%u: error=0x%02x { ", id, err);
- if (err & ATA_ABORTED) printk("DriveStatusError ");
+ pr_warn("ata%u: error=0x%02x { ", id, err);
+ if (err & ATA_ABORTED) pr_cont("DriveStatusError ");
if (err & ATA_ICRC) {
if (err & ATA_ABORTED)
- printk("BadCRC ");
- else printk("Sector ");
+ pr_cont("BadCRC ");
+ else pr_cont("Sector ");
}
- if (err & ATA_UNC) printk("UncorrectableError ");
- if (err & ATA_IDNF) printk("SectorIdNotFound ");
- if (err & ATA_TRK0NF) printk("TrackZeroNotFound ");
- if (err & ATA_AMNF) printk("AddrMarkNotFound ");
- printk("}\n");
+ if (err & ATA_UNC) pr_cont("UncorrectableError ");
+ if (err & ATA_IDNF) pr_cont("SectorIdNotFound ");
+ if (err & ATA_TRK0NF) pr_cont("TrackZeroNotFound ");
+ if (err & ATA_AMNF) pr_cont("AddrMarkNotFound ");
+ pr_cont("}\n");
}
}
}
@@ -1059,8 +1059,7 @@ static void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk,
translate_done:
if (verbose)
- printk(KERN_ERR "ata%u: translated ATA stat/err 0x%02x/%02x "
- "to SCSI SK/ASC/ASCQ 0x%x/%02x/%02x\n",
+ pr_err("ata%u: translated ATA stat/err 0x%02x/%02x to SCSI SK/ASC/ASCQ 0x%x/%02x/%02x\n",
id, drv_stat, drv_err, *sk, *asc, *ascq);
return;
}
@@ -1322,6 +1321,9 @@ static int ata_scsi_dev_config(struct scsi_device *sdev,
blk_queue_flush_queueable(q, false);
+ if (dev->flags & ATA_DFLAG_TRUSTED)
+ sdev->security_supported = 1;
+
dev->sdev = sdev;
return 0;
}
@@ -3028,10 +3030,12 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc)
static struct ata_device *ata_find_dev(struct ata_port *ap, int devno)
{
if (!sata_pmp_attached(ap)) {
- if (likely(devno < ata_link_max_devices(&ap->link)))
+ if (likely(devno >= 0 &&
+ devno < ata_link_max_devices(&ap->link)))
return &ap->link.device[devno];
} else {
- if (likely(devno < ap->nr_pmp_links))
+ if (likely(devno >= 0 &&
+ devno < ap->nr_pmp_links))
return &ap->pmp_link[devno].device[0];
}
@@ -3127,7 +3131,7 @@ ata_scsi_map_proto(u8 byte1)
* ata_scsi_pass_thru - convert ATA pass-thru CDB to taskfile
* @qc: command structure to be initialized
*
- * Handles either 12 or 16-byte versions of the CDB.
+ * Handles either 12, 16, or 32-byte versions of the CDB.
*
* RETURNS:
* Zero on success, non-zero on failure.
@@ -3139,13 +3143,19 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
struct ata_device *dev = qc->dev;
const u8 *cdb = scmd->cmnd;
u16 fp;
+ u16 cdb_offset = 0;
+
+ /* 7Fh variable length cmd means a ata pass-thru(32) */
+ if (cdb[0] == VARIABLE_LENGTH_CMD)
+ cdb_offset = 9;
- if ((tf->protocol = ata_scsi_map_proto(cdb[1])) == ATA_PROT_UNKNOWN) {
+ tf->protocol = ata_scsi_map_proto(cdb[1 + cdb_offset]);
+ if (tf->protocol == ATA_PROT_UNKNOWN) {
fp = 1;
goto invalid_fld;
}
- if (ata_is_ncq(tf->protocol) && (cdb[2] & 0x3) == 0)
+ if (ata_is_ncq(tf->protocol) && (cdb[2 + cdb_offset] & 0x3) == 0)
tf->protocol = ATA_PROT_NCQ_NODATA;
/* enable LBA */
@@ -3181,7 +3191,7 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
tf->lbah = cdb[12];
tf->device = cdb[13];
tf->command = cdb[14];
- } else {
+ } else if (cdb[0] == ATA_12) {
/*
* 12-byte CDB - incapable of extended commands.
*/
@@ -3194,6 +3204,30 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
tf->lbah = cdb[7];
tf->device = cdb[8];
tf->command = cdb[9];
+ } else {
+ /*
+ * 32-byte CDB - may contain extended command fields.
+ *
+ * If that is the case, copy the upper byte register values.
+ */
+ if (cdb[10] & 0x01) {
+ tf->hob_feature = cdb[20];
+ tf->hob_nsect = cdb[22];
+ tf->hob_lbal = cdb[16];
+ tf->hob_lbam = cdb[15];
+ tf->hob_lbah = cdb[14];
+ tf->flags |= ATA_TFLAG_LBA48;
+ } else
+ tf->flags &= ~ATA_TFLAG_LBA48;
+
+ tf->feature = cdb[21];
+ tf->nsect = cdb[23];
+ tf->lbal = cdb[19];
+ tf->lbam = cdb[18];
+ tf->lbah = cdb[17];
+ tf->device = cdb[24];
+ tf->command = cdb[25];
+ tf->auxiliary = get_unaligned_be32(&cdb[28]);
}
/* For NCQ commands copy the tag value */
@@ -3398,9 +3432,10 @@ static size_t ata_format_dsm_trim_descr(struct scsi_cmnd *cmd, u32 trmax,
*
* Translate a SCSI WRITE SAME command to be either a DSM TRIM command or
* an SCT Write Same command.
- * Based on WRITE SAME has the UNMAP flag
- * When set translate to DSM TRIM
- * When clear translate to SCT Write Same
+ * Based on WRITE SAME has the UNMAP flag:
+ *
+ * - When set translate to DSM TRIM
+ * - When clear translate to SCT Write Same
*/
static unsigned int ata_scsi_write_same_xlat(struct ata_queued_cmd *qc)
{
@@ -3563,6 +3598,11 @@ static unsigned int ata_scsiop_maint_in(struct ata_scsi_args *args, u8 *rbuf)
dev->class == ATA_DEV_ZAC)
supported = 3;
break;
+ case SECURITY_PROTOCOL_IN:
+ case SECURITY_PROTOCOL_OUT:
+ if (dev->flags & ATA_DFLAG_TRUSTED)
+ supported = 3;
+ break;
default:
break;
}
@@ -3909,7 +3949,7 @@ static int ata_mselect_control(struct ata_queued_cmd *qc,
}
/**
- * ata_scsiop_mode_select - Simulate MODE SELECT 6, 10 commands
+ * ata_scsi_mode_select_xlat - Simulate MODE SELECT 6, 10 commands
* @qc: Storage for translated ATA taskfile
*
* Converts a MODE SELECT command to an ATA SET FEATURES taskfile.
@@ -4067,6 +4107,99 @@ static unsigned int ata_scsi_mode_select_xlat(struct ata_queued_cmd *qc)
return 1;
}
+static u8 ata_scsi_trusted_op(u32 len, bool send, bool dma)
+{
+ if (len == 0)
+ return ATA_CMD_TRUSTED_NONDATA;
+ else if (send)
+ return dma ? ATA_CMD_TRUSTED_SND_DMA : ATA_CMD_TRUSTED_SND;
+ else
+ return dma ? ATA_CMD_TRUSTED_RCV_DMA : ATA_CMD_TRUSTED_RCV;
+}
+
+static unsigned int ata_scsi_security_inout_xlat(struct ata_queued_cmd *qc)
+{
+ struct scsi_cmnd *scmd = qc->scsicmd;
+ const u8 *cdb = scmd->cmnd;
+ struct ata_taskfile *tf = &qc->tf;
+ u8 secp = cdb[1];
+ bool send = (cdb[0] == SECURITY_PROTOCOL_OUT);
+ u16 spsp = get_unaligned_be16(&cdb[2]);
+ u32 len = get_unaligned_be32(&cdb[6]);
+ bool dma = !(qc->dev->flags & ATA_DFLAG_PIO);
+
+ /*
+ * We don't support the ATA "security" protocol.
+ */
+ if (secp == 0xef) {
+ ata_scsi_set_invalid_field(qc->dev, scmd, 1, 0);
+ return 1;
+ }
+
+ if (cdb[4] & 7) { /* INC_512 */
+ if (len > 0xffff) {
+ ata_scsi_set_invalid_field(qc->dev, scmd, 6, 0);
+ return 1;
+ }
+ } else {
+ if (len > 0x01fffe00) {
+ ata_scsi_set_invalid_field(qc->dev, scmd, 6, 0);
+ return 1;
+ }
+
+ /* convert to the sector-based ATA addressing */
+ len = (len + 511) / 512;
+ }
+
+ tf->protocol = dma ? ATA_PROT_DMA : ATA_PROT_PIO;
+ tf->flags |= ATA_TFLAG_DEVICE | ATA_TFLAG_ISADDR | ATA_TFLAG_LBA;
+ if (send)
+ tf->flags |= ATA_TFLAG_WRITE;
+ tf->command = ata_scsi_trusted_op(len, send, dma);
+ tf->feature = secp;
+ tf->lbam = spsp & 0xff;
+ tf->lbah = spsp >> 8;
+
+ if (len) {
+ tf->nsect = len & 0xff;
+ tf->lbal = len >> 8;
+ } else {
+ if (!send)
+ tf->lbah = (1 << 7);
+ }
+
+ ata_qc_set_pc_nbytes(qc);
+ return 0;
+}
+
+/**
+ * ata_scsi_var_len_cdb_xlat - SATL variable length CDB to Handler
+ * @qc: Command to be translated
+ *
+ * Translate a SCSI variable length CDB to specified commands.
+ * It checks a service action value in CDB to call corresponding handler.
+ *
+ * RETURNS:
+ * Zero on success, non-zero on failure
+ *
+ */
+static unsigned int ata_scsi_var_len_cdb_xlat(struct ata_queued_cmd *qc)
+{
+ struct scsi_cmnd *scmd = qc->scsicmd;
+ const u8 *cdb = scmd->cmnd;
+ const u16 sa = get_unaligned_be16(&cdb[8]);
+
+ /*
+ * if service action represents a ata pass-thru(32) command,
+ * then pass it to ata_scsi_pass_thru handler.
+ */
+ if (sa == ATA_32)
+ return ata_scsi_pass_thru(qc);
+
+ /* unsupported service action */
+ return 1;
+}
+
/**
* ata_get_xlat_func - check if SCSI to ATA translation is possible
* @dev: ATA device
@@ -4107,6 +4240,9 @@ static inline ata_xlat_func_t ata_get_xlat_func(struct ata_device *dev, u8 cmd)
case ATA_16:
return ata_scsi_pass_thru;
+ case VARIABLE_LENGTH_CMD:
+ return ata_scsi_var_len_cdb_xlat;
+
case MODE_SELECT:
case MODE_SELECT_10:
return ata_scsi_mode_select_xlat;
@@ -4118,6 +4254,12 @@ static inline ata_xlat_func_t ata_get_xlat_func(struct ata_device *dev, u8 cmd)
case ZBC_OUT:
return ata_scsi_zbc_out_xlat;
+ case SECURITY_PROTOCOL_IN:
+ case SECURITY_PROTOCOL_OUT:
+ if (!(dev->flags & ATA_DFLAG_TRUSTED))
+ break;
+ return ata_scsi_security_inout_xlat;
+
case START_STOP:
return ata_scsi_start_stop_xlat;
}
@@ -4385,7 +4527,7 @@ int ata_scsi_add_hosts(struct ata_host *host, struct scsi_host_template *sht)
shost->max_id = 16;
shost->max_lun = 1;
shost->max_channel = 1;
- shost->max_cmd_len = 16;
+ shost->max_cmd_len = 32;
/* Schedule policy is determined by ->qc_defer()
* callback and it needs to see every deferred qc.
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 274d6d7193d7..cc2f2e35f4c2 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -25,7 +25,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* Hardware documentation available from http://www.t13.org/ and
* http://www.sata-io.org/
@@ -716,24 +716,10 @@ static void ata_pio_sector(struct ata_queued_cmd *qc)
DPRINTK("data %s\n", qc->tf.flags & ATA_TFLAG_WRITE ? "write" : "read");
- if (PageHighMem(page)) {
- unsigned long flags;
-
- /* FIXME: use a bounce buffer */
- local_irq_save(flags);
- buf = kmap_atomic(page);
-
- /* do the actual data transfer */
- ap->ops->sff_data_xfer(qc, buf + offset, qc->sect_size,
- do_write);
-
- kunmap_atomic(buf);
- local_irq_restore(flags);
- } else {
- buf = page_address(page);
- ap->ops->sff_data_xfer(qc, buf + offset, qc->sect_size,
- do_write);
- }
+ /* do the actual data transfer */
+ buf = kmap_atomic(page);
+ ap->ops->sff_data_xfer(qc, buf + offset, qc->sect_size, do_write);
+ kunmap_atomic(buf);
if (!do_write && !PageSlab(page))
flush_dcache_page(page);
@@ -861,24 +847,10 @@ next_sg:
DPRINTK("data %s\n", qc->tf.flags & ATA_TFLAG_WRITE ? "write" : "read");
- if (PageHighMem(page)) {
- unsigned long flags;
-
- /* FIXME: use bounce buffer */
- local_irq_save(flags);
- buf = kmap_atomic(page);
-
- /* do the actual data transfer */
- consumed = ap->ops->sff_data_xfer(qc, buf + offset,
- count, rw);
-
- kunmap_atomic(buf);
- local_irq_restore(flags);
- } else {
- buf = page_address(page);
- consumed = ap->ops->sff_data_xfer(qc, buf + offset,
- count, rw);
- }
+ /* do the actual data transfer */
+ buf = kmap_atomic(page);
+ consumed = ap->ops->sff_data_xfer(qc, buf + offset, count, rw);
+ kunmap_atomic(buf);
bytes -= min(bytes, consumed);
qc->curbytes += count;
diff --git a/drivers/ata/libata-zpodd.c b/drivers/ata/libata-zpodd.c
index f3a65a3140d3..23a62e4015d0 100644
--- a/drivers/ata/libata-zpodd.c
+++ b/drivers/ata/libata-zpodd.c
@@ -34,7 +34,7 @@ struct zpodd {
static int eject_tray(struct ata_device *dev)
{
struct ata_taskfile tf;
- const char cdb[] = { GPCMD_START_STOP_UNIT,
+ static const char cdb[] = { GPCMD_START_STOP_UNIT,
0, 0, 0,
0x02, /* LoEj */
0, 0, 0, 0, 0, 0, 0,
@@ -55,7 +55,7 @@ static enum odd_mech_type zpodd_get_mech_type(struct ata_device *dev)
unsigned int ret;
struct rm_feature_desc *desc = (void *)(buf + 8);
struct ata_taskfile tf;
- char cdb[] = { GPCMD_GET_CONFIGURATION,
+ static const char cdb[] = { GPCMD_GET_CONFIGURATION,
2, /* only 1 feature descriptor requested */
0, 3, /* 3, removable medium feature */
0, 0, 0,/* reserved */
@@ -174,8 +174,7 @@ void zpodd_enable_run_wake(struct ata_device *dev)
sdev_disable_disk_events(dev->sdev);
zpodd->powered_off = true;
- device_set_run_wake(&dev->tdev, true);
- acpi_pm_device_run_wake(&dev->tdev, true);
+ acpi_pm_set_device_wakeup(&dev->tdev, true);
}
/* Disable runtime wake capability if it is enabled */
@@ -183,10 +182,8 @@ void zpodd_disable_run_wake(struct ata_device *dev)
{
struct zpodd *zpodd = dev->zpodd;
- if (zpodd->powered_off) {
- acpi_pm_device_run_wake(&dev->tdev, false);
- device_set_run_wake(&dev->tdev, false);
- }
+ if (zpodd->powered_off)
+ acpi_pm_set_device_wakeup(&dev->tdev, false);
}
/*
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 120fce0befd3..839d487394b7 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -21,7 +21,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
*/
@@ -98,6 +98,8 @@ extern struct ata_port *ata_port_alloc(struct ata_host *host);
extern const char *sata_spd_string(unsigned int spd);
extern int ata_port_probe(struct ata_port *ap);
extern void __ata_port_probe(struct ata_port *ap);
+extern unsigned int ata_read_log_page(struct ata_device *dev, u8 log,
+ u8 page, void *buf, unsigned int sectors);
#define to_ata_port(d) container_of(d, struct ata_port, tdev)
@@ -160,8 +162,6 @@ extern void ata_eh_about_to_do(struct ata_link *link, struct ata_device *dev,
unsigned int action);
extern void ata_eh_done(struct ata_link *link, struct ata_device *dev,
unsigned int action);
-extern unsigned int ata_read_log_page(struct ata_device *dev, u8 log,
- u8 page, void *buf, unsigned int sectors);
extern void ata_eh_autopsy(struct ata_port *ap);
const char *ata_get_cmd_descript(u8 command);
extern void ata_eh_report(struct ata_port *ap);
diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c
index 8d4d959a821c..8706533db57b 100644
--- a/drivers/ata/pata_amd.c
+++ b/drivers/ata/pata_amd.c
@@ -616,6 +616,7 @@ static const struct pci_device_id amd[] = {
{ PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP73_IDE), 8 },
{ PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP77_IDE), 8 },
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_CS5536_IDE), 9 },
+ { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_CS5536_DEV_IDE), 9 },
{ },
};
diff --git a/drivers/ata/pata_bf54x.c b/drivers/ata/pata_bf54x.c
index 9c5780a7e1b9..0e55a8da2748 100644
--- a/drivers/ata/pata_bf54x.c
+++ b/drivers/ata/pata_bf54x.c
@@ -1597,8 +1597,6 @@ static int bfin_atapi_probe(struct platform_device *pdev)
return -ENODEV;
}
- platform_set_drvdata(pdev, host);
-
return 0;
}
diff --git a/drivers/ata/pata_cs5536.c b/drivers/ata/pata_cs5536.c
index 6c15a554efbe..dc1255294628 100644
--- a/drivers/ata/pata_cs5536.c
+++ b/drivers/ata/pata_cs5536.c
@@ -289,6 +289,7 @@ static int cs5536_init_one(struct pci_dev *dev, const struct pci_device_id *id)
static const struct pci_device_id cs5536[] = {
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_CS5536_IDE), },
+ { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_CS5536_DEV_IDE), },
{ },
};
diff --git a/drivers/ata/pata_ep93xx.c b/drivers/ata/pata_ep93xx.c
index bf1b910c5d69..0a550190955a 100644
--- a/drivers/ata/pata_ep93xx.c
+++ b/drivers/ata/pata_ep93xx.c
@@ -944,7 +944,6 @@ static int ep93xx_pata_probe(struct platform_device *pdev)
goto err_rel_gpio;
}
- platform_set_drvdata(pdev, drv_data);
drv_data->pdev = pdev;
drv_data->ide_base = ide_base;
drv_data->udma_in_phys = mem_res->start + IDEUDMADATAIN;
diff --git a/drivers/ata/pata_ftide010.c b/drivers/ata/pata_ftide010.c
new file mode 100644
index 000000000000..5d4b72e21161
--- /dev/null
+++ b/drivers/ata/pata_ftide010.c
@@ -0,0 +1,567 @@
+/*
+ * Faraday Technology FTIDE010 driver
+ * Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org>
+ *
+ * Includes portions of the SL2312/SL3516/Gemini PATA driver
+ * Copyright (C) 2003 StorLine, Inc <jason@storlink.com.tw>
+ * Copyright (C) 2009 Janos Laube <janos.dev@gmail.com>
+ * Copyright (C) 2010 Frederic Pecourt <opengemini@free.fr>
+ * Copyright (C) 2011 Tobias Waldvogel <tobias.waldvogel@gmail.com>
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/libata.h>
+#include <linux/bitops.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/clk.h>
+#include "sata_gemini.h"
+
+#define DRV_NAME "pata_ftide010"
+
+/**
+ * struct ftide010 - state container for the Faraday FTIDE010
+ * @dev: pointer back to the device representing this controller
+ * @base: remapped I/O space address
+ * @pclk: peripheral clock for the IDE block
+ * @host: pointer to the ATA host for this device
+ * @master_cbl: master cable type
+ * @slave_cbl: slave cable type
+ * @sg: Gemini SATA bridge pointer, if running on the Gemini
+ * @master_to_sata0: Gemini SATA bridge: the ATA master is connected
+ * to the SATA0 bridge
+ * @slave_to_sata0: Gemini SATA bridge: the ATA slave is connected
+ * to the SATA0 bridge
+ * @master_to_sata1: Gemini SATA bridge: the ATA master is connected
+ * to the SATA1 bridge
+ * @slave_to_sata1: Gemini SATA bridge: the ATA slave is connected
+ * to the SATA1 bridge
+ */
+struct ftide010 {
+ struct device *dev;
+ void __iomem *base;
+ struct clk *pclk;
+ struct ata_host *host;
+ unsigned int master_cbl;
+ unsigned int slave_cbl;
+ /* Gemini-specific properties */
+ struct sata_gemini *sg;
+ bool master_to_sata0;
+ bool slave_to_sata0;
+ bool master_to_sata1;
+ bool slave_to_sata1;
+};
+
+#define FTIDE010_DMA_REG 0x00
+#define FTIDE010_DMA_STATUS 0x02
+#define FTIDE010_IDE_BMDTPR 0x04
+#define FTIDE010_IDE_DEVICE_ID 0x08
+#define FTIDE010_PIO_TIMING 0x10
+#define FTIDE010_MWDMA_TIMING 0x11
+#define FTIDE010_UDMA_TIMING0 0x12 /* Master */
+#define FTIDE010_UDMA_TIMING1 0x13 /* Slave */
+#define FTIDE010_CLK_MOD 0x14
+/* These registers are mapped directly to the IDE registers */
+#define FTIDE010_CMD_DATA 0x20
+#define FTIDE010_ERROR_FEATURES 0x21
+#define FTIDE010_NSECT 0x22
+#define FTIDE010_LBAL 0x23
+#define FTIDE010_LBAM 0x24
+#define FTIDE010_LBAH 0x25
+#define FTIDE010_DEVICE 0x26
+#define FTIDE010_STATUS_COMMAND 0x27
+#define FTIDE010_ALTSTAT_CTRL 0x36
+
+/* Set this bit for UDMA mode 5 and 6 */
+#define FTIDE010_UDMA_TIMING_MODE_56 BIT(7)
+
+/* 0 = 50 MHz, 1 = 66 MHz */
+#define FTIDE010_CLK_MOD_DEV0_CLK_SEL BIT(0)
+#define FTIDE010_CLK_MOD_DEV1_CLK_SEL BIT(1)
+/* Enable UDMA on a device */
+#define FTIDE010_CLK_MOD_DEV0_UDMA_EN BIT(4)
+#define FTIDE010_CLK_MOD_DEV1_UDMA_EN BIT(5)
+
+static struct scsi_host_template pata_ftide010_sht = {
+ ATA_BMDMA_SHT(DRV_NAME),
+};
+
+/*
+ * Bus timings
+ *
+ * The unit of the below required timings is two clock periods of the ATA
+ * reference clock which is 30 nanoseconds per unit at 66MHz and 20
+ * nanoseconds per unit at 50 MHz. The PIO timings assume 33MHz speed for
+ * PIO.
+ *
+ * pio_active_time: array of 5 elements for T2 timing for Mode 0,
+ * 1, 2, 3 and 4. Range 0..15.
+ * pio_recovery_time: array of 5 elements for T2l timing for Mode 0,
+ * 1, 2, 3 and 4. Range 0..15.
+ * mdma_50_active_time: array of 4 elements for Td timing for multi
+ * word DMA, Mode 0, 1, and 2 at 50 MHz. Range 0..15.
+ * mdma_50_recovery_time: array of 4 elements for Tk timing for
+ * multi word DMA, Mode 0, 1 and 2 at 50 MHz. Range 0..15.
+ * mdma_66_active_time: array of 4 elements for Td timing for multi
+ * word DMA, Mode 0, 1 and 2 at 66 MHz. Range 0..15.
+ * mdma_66_recovery_time: array of 4 elements for Tk timing for
+ * multi word DMA, Mode 0, 1 and 2 at 66 MHz. Range 0..15.
+ * udma_50_setup_time: array of 4 elements for Tvds timing for ultra
+ * DMA, Mode 0, 1, 2, 3, 4 and 5 at 50 MHz. Range 0..7.
+ * udma_50_hold_time: array of 4 elements for Tdvh timing for
+ * multi word DMA, Mode 0, 1, 2, 3, 4 and 5 at 50 MHz, Range 0..7.
+ * udma_66_setup_time: array of 4 elements for Tvds timing for multi
+ * word DMA, Mode 0, 1, 2, 3, 4, 5 and 6 at 66 MHz. Range 0..7.
+ * udma_66_hold_time: array of 4 elements for Tdvh timing for
+ * multi word DMA, Mode 0, 1, 2, 3, 4, 5 and 6 at 66 MHz. Range 0..7.
+ */
+static const u8 pio_active_time[5] = {10, 10, 10, 3, 3};
+static const u8 pio_recovery_time[5] = {10, 3, 1, 3, 1};
+static const u8 mwdma_50_active_time[3] = {6, 2, 2};
+static const u8 mwdma_50_recovery_time[3] = {6, 2, 1};
+static const u8 mwdma_66_active_time[3] = {8, 3, 3};
+static const u8 mwdma_66_recovery_time[3] = {8, 2, 1};
+static const u8 udma_50_setup_time[6] = {3, 3, 2, 2, 1, 1};
+static const u8 udma_50_hold_time[6] = {3, 1, 1, 1, 1, 1};
+static const u8 udma_66_setup_time[7] = {4, 4, 3, 2, };
+static const u8 udma_66_hold_time[7] = {};
+
+/*
+ * We set 66 MHz for all MWDMA modes
+ */
+static const bool set_mdma_66_mhz[] = { true, true, true, true };
+
+/*
+ * We set 66 MHz for UDMA modes 3, 4 and 6 and no others
+ */
+static const bool set_udma_66_mhz[] = { false, false, false, true, true, false, true };
+
+static void ftide010_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct ftide010 *ftide = ap->host->private_data;
+ u8 speed = adev->dma_mode;
+ u8 devno = adev->devno & 1;
+ u8 udma_en_mask;
+ u8 f66m_en_mask;
+ u8 clkreg;
+ u8 timreg;
+ u8 i;
+
+ /* Target device 0 (master) or 1 (slave) */
+ if (!devno) {
+ udma_en_mask = FTIDE010_CLK_MOD_DEV0_UDMA_EN;
+ f66m_en_mask = FTIDE010_CLK_MOD_DEV0_CLK_SEL;
+ } else {
+ udma_en_mask = FTIDE010_CLK_MOD_DEV1_UDMA_EN;
+ f66m_en_mask = FTIDE010_CLK_MOD_DEV1_CLK_SEL;
+ }
+
+ clkreg = readb(ftide->base + FTIDE010_CLK_MOD);
+ clkreg &= ~udma_en_mask;
+ clkreg &= ~f66m_en_mask;
+
+ if (speed & XFER_UDMA_0) {
+ i = speed & ~XFER_UDMA_0;
+ dev_dbg(ftide->dev, "set UDMA mode %02x, index %d\n",
+ speed, i);
+
+ clkreg |= udma_en_mask;
+ if (set_udma_66_mhz[i]) {
+ clkreg |= f66m_en_mask;
+ timreg = udma_66_setup_time[i] << 4 |
+ udma_66_hold_time[i];
+ } else {
+ timreg = udma_50_setup_time[i] << 4 |
+ udma_50_hold_time[i];
+ }
+
+ /* A special bit needs to be set for modes 5 and 6 */
+ if (i >= 5)
+ timreg |= FTIDE010_UDMA_TIMING_MODE_56;
+
+ dev_dbg(ftide->dev, "UDMA write clkreg = %02x, timreg = %02x\n",
+ clkreg, timreg);
+
+ writeb(clkreg, ftide->base + FTIDE010_CLK_MOD);
+ writeb(timreg, ftide->base + FTIDE010_UDMA_TIMING0 + devno);
+ } else {
+ i = speed & ~XFER_MW_DMA_0;
+ dev_dbg(ftide->dev, "set MWDMA mode %02x, index %d\n",
+ speed, i);
+
+ if (set_mdma_66_mhz[i]) {
+ clkreg |= f66m_en_mask;
+ timreg = mwdma_66_active_time[i] << 4 |
+ mwdma_66_recovery_time[i];
+ } else {
+ timreg = mwdma_50_active_time[i] << 4 |
+ mwdma_50_recovery_time[i];
+ }
+ dev_dbg(ftide->dev,
+ "MWDMA write clkreg = %02x, timreg = %02x\n",
+ clkreg, timreg);
+ /* This will affect all devices */
+ writeb(clkreg, ftide->base + FTIDE010_CLK_MOD);
+ writeb(timreg, ftide->base + FTIDE010_MWDMA_TIMING);
+ }
+
+ /*
+ * Store the current device (master or slave) in ap->private_data
+ * so that .qc_issue() can detect if this changes and reprogram
+ * the DMA settings.
+ */
+ ap->private_data = adev;
+
+ return;
+}
+
+static void ftide010_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct ftide010 *ftide = ap->host->private_data;
+ u8 pio = adev->pio_mode - XFER_PIO_0;
+
+ dev_dbg(ftide->dev, "set PIO mode %02x, index %d\n",
+ adev->pio_mode, pio);
+ writeb(pio_active_time[pio] << 4 | pio_recovery_time[pio],
+ ftide->base + FTIDE010_PIO_TIMING);
+}
+
+/*
+ * We implement our own qc_issue() callback since we may need to set up
+ * the timings differently for master and slave transfers: the CLK_MOD_REG
+ * and MWDMA_TIMING_REG is shared between master and slave, so reprogramming
+ * this may be necessary.
+ */
+static unsigned int ftide010_qc_issue(struct ata_queued_cmd *qc)
+{
+ struct ata_port *ap = qc->ap;
+ struct ata_device *adev = qc->dev;
+
+ /*
+ * If the device changed, i.e. slave->master, master->slave,
+ * then set up the DMA mode again so we are sure the timings
+ * are correct.
+ */
+ if (adev != ap->private_data && ata_dma_enabled(adev))
+ ftide010_set_dmamode(ap, adev);
+
+ return ata_bmdma_qc_issue(qc);
+}
+
+static struct ata_port_operations pata_ftide010_port_ops = {
+ .inherits = &ata_bmdma_port_ops,
+ .set_dmamode = ftide010_set_dmamode,
+ .set_piomode = ftide010_set_piomode,
+ .qc_issue = ftide010_qc_issue,
+};
+
+static struct ata_port_info ftide010_port_info[] = {
+ {
+ .flags = ATA_FLAG_SLAVE_POSS,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA6,
+ .pio_mask = ATA_PIO4,
+ .port_ops = &pata_ftide010_port_ops,
+ },
+};
+
+#if IS_ENABLED(CONFIG_SATA_GEMINI)
+
+static int pata_ftide010_gemini_port_start(struct ata_port *ap)
+{
+ struct ftide010 *ftide = ap->host->private_data;
+ struct device *dev = ftide->dev;
+ struct sata_gemini *sg = ftide->sg;
+ int bridges = 0;
+ int ret;
+
+ ret = ata_bmdma_port_start(ap);
+ if (ret)
+ return ret;
+
+ if (ftide->master_to_sata0) {
+ dev_info(dev, "SATA0 (master) start\n");
+ ret = gemini_sata_start_bridge(sg, 0);
+ if (!ret)
+ bridges++;
+ }
+ if (ftide->master_to_sata1) {
+ dev_info(dev, "SATA1 (master) start\n");
+ ret = gemini_sata_start_bridge(sg, 1);
+ if (!ret)
+ bridges++;
+ }
+ /* Avoid double-starting */
+ if (ftide->slave_to_sata0 && !ftide->master_to_sata0) {
+ dev_info(dev, "SATA0 (slave) start\n");
+ ret = gemini_sata_start_bridge(sg, 0);
+ if (!ret)
+ bridges++;
+ }
+ /* Avoid double-starting */
+ if (ftide->slave_to_sata1 && !ftide->master_to_sata1) {
+ dev_info(dev, "SATA1 (slave) start\n");
+ ret = gemini_sata_start_bridge(sg, 1);
+ if (!ret)
+ bridges++;
+ }
+
+ dev_info(dev, "brought %d bridges online\n", bridges);
+ return (bridges > 0) ? 0 : -EINVAL; // -ENODEV;
+}
+
+static void pata_ftide010_gemini_port_stop(struct ata_port *ap)
+{
+ struct ftide010 *ftide = ap->host->private_data;
+ struct device *dev = ftide->dev;
+ struct sata_gemini *sg = ftide->sg;
+
+ if (ftide->master_to_sata0) {
+ dev_info(dev, "SATA0 (master) stop\n");
+ gemini_sata_stop_bridge(sg, 0);
+ }
+ if (ftide->master_to_sata1) {
+ dev_info(dev, "SATA1 (master) stop\n");
+ gemini_sata_stop_bridge(sg, 1);
+ }
+ /* Avoid double-stopping */
+ if (ftide->slave_to_sata0 && !ftide->master_to_sata0) {
+ dev_info(dev, "SATA0 (slave) stop\n");
+ gemini_sata_stop_bridge(sg, 0);
+ }
+ /* Avoid double-stopping */
+ if (ftide->slave_to_sata1 && !ftide->master_to_sata1) {
+ dev_info(dev, "SATA1 (slave) stop\n");
+ gemini_sata_stop_bridge(sg, 1);
+ }
+}
+
+static int pata_ftide010_gemini_cable_detect(struct ata_port *ap)
+{
+ struct ftide010 *ftide = ap->host->private_data;
+
+ /*
+ * Return the master cable, I have no clue how to return a different
+ * cable for the slave than for the master.
+ */
+ return ftide->master_cbl;
+}
+
+static int pata_ftide010_gemini_init(struct ftide010 *ftide,
+ bool is_ata1)
+{
+ struct device *dev = ftide->dev;
+ struct sata_gemini *sg;
+ enum gemini_muxmode muxmode;
+
+ /* Look up SATA bridge */
+ sg = gemini_sata_bridge_get();
+ if (IS_ERR(sg))
+ return PTR_ERR(sg);
+ ftide->sg = sg;
+
+ muxmode = gemini_sata_get_muxmode(sg);
+
+ /* Special ops */
+ pata_ftide010_port_ops.port_start =
+ pata_ftide010_gemini_port_start;
+ pata_ftide010_port_ops.port_stop =
+ pata_ftide010_gemini_port_stop;
+ pata_ftide010_port_ops.cable_detect =
+ pata_ftide010_gemini_cable_detect;
+
+ /* Flag port as SATA-capable */
+ if (gemini_sata_bridge_enabled(sg, is_ata1))
+ ftide010_port_info[0].flags |= ATA_FLAG_SATA;
+
+ /*
+ * We assume that a simple 40-wire cable is used in the PATA mode.
+ * if you're adding a system using the PATA interface, make sure
+ * the right cable is set up here, it might be necessary to use
+ * special hardware detection or encode the cable type in the device
+ * tree with special properties.
+ */
+ if (!is_ata1) {
+ switch (muxmode) {
+ case GEMINI_MUXMODE_0:
+ ftide->master_cbl = ATA_CBL_SATA;
+ ftide->slave_cbl = ATA_CBL_PATA40;
+ ftide->master_to_sata0 = true;
+ break;
+ case GEMINI_MUXMODE_1:
+ ftide->master_cbl = ATA_CBL_SATA;
+ ftide->slave_cbl = ATA_CBL_NONE;
+ ftide->master_to_sata0 = true;
+ break;
+ case GEMINI_MUXMODE_2:
+ ftide->master_cbl = ATA_CBL_PATA40;
+ ftide->slave_cbl = ATA_CBL_PATA40;
+ break;
+ case GEMINI_MUXMODE_3:
+ ftide->master_cbl = ATA_CBL_SATA;
+ ftide->slave_cbl = ATA_CBL_SATA;
+ ftide->master_to_sata0 = true;
+ ftide->slave_to_sata1 = true;
+ break;
+ }
+ } else {
+ switch (muxmode) {
+ case GEMINI_MUXMODE_0:
+ ftide->master_cbl = ATA_CBL_SATA;
+ ftide->slave_cbl = ATA_CBL_NONE;
+ ftide->master_to_sata1 = true;
+ break;
+ case GEMINI_MUXMODE_1:
+ ftide->master_cbl = ATA_CBL_SATA;
+ ftide->slave_cbl = ATA_CBL_PATA40;
+ ftide->master_to_sata1 = true;
+ break;
+ case GEMINI_MUXMODE_2:
+ ftide->master_cbl = ATA_CBL_SATA;
+ ftide->slave_cbl = ATA_CBL_SATA;
+ ftide->slave_to_sata0 = true;
+ ftide->master_to_sata1 = true;
+ break;
+ case GEMINI_MUXMODE_3:
+ ftide->master_cbl = ATA_CBL_PATA40;
+ ftide->slave_cbl = ATA_CBL_PATA40;
+ break;
+ }
+ }
+ dev_info(dev, "set up Gemini PATA%d\n", is_ata1);
+
+ return 0;
+}
+#else
+static int pata_ftide010_gemini_init(struct ftide010 *ftide,
+ bool is_ata1)
+{
+ return -ENOTSUPP;
+}
+#endif
+
+
+static int pata_ftide010_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ const struct ata_port_info pi = ftide010_port_info[0];
+ const struct ata_port_info *ppi[] = { &pi, NULL };
+ struct ftide010 *ftide;
+ struct resource *res;
+ int irq;
+ int ret;
+ int i;
+
+ ftide = devm_kzalloc(dev, sizeof(*ftide), GFP_KERNEL);
+ if (!ftide)
+ return -ENOMEM;
+ ftide->dev = dev;
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENODEV;
+
+ ftide->base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(ftide->base))
+ return PTR_ERR(ftide->base);
+
+ ftide->pclk = devm_clk_get(dev, "PCLK");
+ if (!IS_ERR(ftide->pclk)) {
+ ret = clk_prepare_enable(ftide->pclk);
+ if (ret) {
+ dev_err(dev, "failed to enable PCLK\n");
+ return ret;
+ }
+ }
+
+ /* Some special Cortina Gemini init, if needed */
+ if (of_device_is_compatible(np, "cortina,gemini-pata")) {
+ /*
+ * We need to know which instance is probing (the
+ * Gemini has two instances of FTIDE010) and we do
+ * this simply by looking at the physical base
+ * address, which is 0x63400000 for ATA1, else we
+ * are ATA0. This will also set up the cable types.
+ */
+ ret = pata_ftide010_gemini_init(ftide,
+ (res->start == 0x63400000));
+ if (ret)
+ goto err_dis_clk;
+ } else {
+ /* Else assume we are connected using PATA40 */
+ ftide->master_cbl = ATA_CBL_PATA40;
+ ftide->slave_cbl = ATA_CBL_PATA40;
+ }
+
+ ftide->host = ata_host_alloc_pinfo(dev, ppi, 1);
+ if (!ftide->host) {
+ ret = -ENOMEM;
+ goto err_dis_clk;
+ }
+ ftide->host->private_data = ftide;
+
+ for (i = 0; i < ftide->host->n_ports; i++) {
+ struct ata_port *ap = ftide->host->ports[i];
+ struct ata_ioports *ioaddr = &ap->ioaddr;
+
+ ioaddr->bmdma_addr = ftide->base + FTIDE010_DMA_REG;
+ ioaddr->cmd_addr = ftide->base + FTIDE010_CMD_DATA;
+ ioaddr->ctl_addr = ftide->base + FTIDE010_ALTSTAT_CTRL;
+ ioaddr->altstatus_addr = ftide->base + FTIDE010_ALTSTAT_CTRL;
+ ata_sff_std_ports(ioaddr);
+ }
+
+ dev_info(dev, "device ID %08x, irq %d, reg %pR\n",
+ readl(ftide->base + FTIDE010_IDE_DEVICE_ID), irq, res);
+
+ ret = ata_host_activate(ftide->host, irq, ata_bmdma_interrupt,
+ 0, &pata_ftide010_sht);
+ if (ret)
+ goto err_dis_clk;
+
+ return 0;
+
+err_dis_clk:
+ if (!IS_ERR(ftide->pclk))
+ clk_disable_unprepare(ftide->pclk);
+ return ret;
+}
+
+static int pata_ftide010_remove(struct platform_device *pdev)
+{
+ struct ata_host *host = platform_get_drvdata(pdev);
+ struct ftide010 *ftide = host->private_data;
+
+ ata_host_detach(ftide->host);
+ if (!IS_ERR(ftide->pclk))
+ clk_disable_unprepare(ftide->pclk);
+
+ return 0;
+}
+
+static const struct of_device_id pata_ftide010_of_match[] = {
+ {
+ .compatible = "faraday,ftide010",
+ },
+ {},
+};
+
+static struct platform_driver pata_ftide010_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .of_match_table = of_match_ptr(pata_ftide010_of_match),
+ },
+ .probe = pata_ftide010_probe,
+ .remove = pata_ftide010_remove,
+};
+module_platform_driver(pata_ftide010_driver);
+
+MODULE_AUTHOR("Linus Walleij <linus.walleij@linaro.org>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/ata/pata_octeon_cf.c b/drivers/ata/pata_octeon_cf.c
index f524a9099d01..d3d851b014a3 100644
--- a/drivers/ata/pata_octeon_cf.c
+++ b/drivers/ata/pata_octeon_cf.c
@@ -840,7 +840,6 @@ static int octeon_cf_probe(struct platform_device *pdev)
struct property *reg_prop;
int n_addr, n_size, reg_len;
struct device_node *node;
- const void *prop;
void __iomem *cs0;
void __iomem *cs1 = NULL;
struct ata_host *host;
@@ -850,7 +849,7 @@ static int octeon_cf_probe(struct platform_device *pdev)
void __iomem *base;
struct octeon_cf_port *cf_port;
int rv = -ENOMEM;
-
+ u32 bus_width;
node = pdev->dev.of_node;
if (node == NULL)
@@ -860,11 +859,10 @@ static int octeon_cf_probe(struct platform_device *pdev)
if (!cf_port)
return -ENOMEM;
- cf_port->is_true_ide = (of_find_property(node, "cavium,true-ide", NULL) != NULL);
+ cf_port->is_true_ide = of_property_read_bool(node, "cavium,true-ide");
- prop = of_get_property(node, "cavium,bus-width", NULL);
- if (prop)
- is_16bit = (be32_to_cpup(prop) == 16);
+ if (of_property_read_u32(node, "cavium,bus-width", &bus_width) == 0)
+ is_16bit = (bus_width == 16);
else
is_16bit = false;
@@ -1038,7 +1036,7 @@ static void octeon_cf_shutdown(struct device *dev)
}
}
-static struct of_device_id octeon_cf_match[] = {
+static const struct of_device_id octeon_cf_match[] = {
{
.compatible = "cavium,ebt3000-compact-flash",
},
diff --git a/drivers/ata/pata_pdc2027x.c b/drivers/ata/pata_pdc2027x.c
index d9ef9e276225..82bfd51692f3 100644
--- a/drivers/ata/pata_pdc2027x.c
+++ b/drivers/ata/pata_pdc2027x.c
@@ -17,7 +17,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* Hardware information only available under NDA.
*
diff --git a/drivers/ata/pata_rb532_cf.c b/drivers/ata/pata_rb532_cf.c
index c8b6a780a290..653b9a0bf727 100644
--- a/drivers/ata/pata_rb532_cf.c
+++ b/drivers/ata/pata_rb532_cf.c
@@ -148,8 +148,6 @@ static int rb532_pata_driver_probe(struct platform_device *pdev)
if (!ah)
return -ENOMEM;
- platform_set_drvdata(pdev, ah);
-
info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
if (!info)
return -ENOMEM;
diff --git a/drivers/ata/pata_rdc.c b/drivers/ata/pata_rdc.c
index 9ce5952216bc..959bb54fd803 100644
--- a/drivers/ata/pata_rdc.c
+++ b/drivers/ata/pata_rdc.c
@@ -292,7 +292,7 @@ static struct ata_port_operations rdc_pata_ops = {
.prereset = rdc_pata_prereset,
};
-static struct ata_port_info rdc_port_info = {
+static const struct ata_port_info rdc_port_info = {
.flags = ATA_FLAG_SLAVE_POSS,
.pio_mask = ATA_PIO4,
diff --git a/drivers/ata/pata_samsung_cf.c b/drivers/ata/pata_samsung_cf.c
index 431c7de30ce6..50801c40b029 100644
--- a/drivers/ata/pata_samsung_cf.c
+++ b/drivers/ata/pata_samsung_cf.c
@@ -582,8 +582,6 @@ static int __init pata_s3c_probe(struct platform_device *pdev)
/* Set endianness and enable the interface */
pata_s3c_hwinit(info, pdata);
- platform_set_drvdata(pdev, host);
-
ret = ata_host_activate(host, info->irq,
info->irq ? pata_s3c_irq : NULL,
0, &pata_s3c_sht);
diff --git a/drivers/ata/pata_sch.c b/drivers/ata/pata_sch.c
index b920c3407f8b..1b80a66caa54 100644
--- a/drivers/ata/pata_sch.c
+++ b/drivers/ata/pata_sch.c
@@ -81,7 +81,7 @@ static struct ata_port_operations sch_pata_ops = {
.set_dmamode = sch_set_dmamode,
};
-static struct ata_port_info sch_port_info = {
+static const struct ata_port_info sch_port_info = {
.flags = ATA_FLAG_SLAVE_POSS,
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
diff --git a/drivers/ata/pdc_adma.c b/drivers/ata/pdc_adma.c
index 64d682c6ee57..f1e873a37465 100644
--- a/drivers/ata/pdc_adma.c
+++ b/drivers/ata/pdc_adma.c
@@ -21,7 +21,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
*
* Supports ATA disks in single-packet ADMA mode.
diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index e0939bd5ea73..ce128d5a6ded 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -1285,7 +1285,6 @@ static int sata_dwc_probe(struct platform_device *ofdev)
if (err)
dev_err(&ofdev->dev, "failed to activate host");
- dev_set_drvdata(&ofdev->dev, host);
return 0;
error_out:
diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index 01734d54c69c..95bf3abda6f6 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -1523,8 +1523,6 @@ static int sata_fsl_probe(struct platform_device *ofdev)
ata_host_activate(host, irq, sata_fsl_interrupt, SATA_FSL_IRQ_FLAG,
&sata_fsl_sht);
- platform_set_drvdata(ofdev, host);
-
host_priv->intr_coalescing.show = fsl_sata_intr_coalescing_show;
host_priv->intr_coalescing.store = fsl_sata_intr_coalescing_store;
sysfs_attr_init(&host_priv->intr_coalescing.attr);
diff --git a/drivers/ata/sata_gemini.c b/drivers/ata/sata_gemini.c
new file mode 100644
index 000000000000..46950e0267e0
--- /dev/null
+++ b/drivers/ata/sata_gemini.c
@@ -0,0 +1,439 @@
+/*
+ * Cortina Systems Gemini SATA bridge add-on to Faraday FTIDE010
+ * Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org>
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/bitops.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+#include <linux/delay.h>
+#include <linux/reset.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/pinctrl/consumer.h>
+#include "sata_gemini.h"
+
+#define DRV_NAME "gemini_sata_bridge"
+
+/**
+ * struct sata_gemini - a state container for a Gemini SATA bridge
+ * @dev: the containing device
+ * @base: remapped I/O memory base
+ * @muxmode: the current muxing mode
+ * @ide_pins: if the device is using the plain IDE interface pins
+ * @sata_bridge: if the device enables the SATA bridge
+ * @sata0_reset: SATA0 reset handler
+ * @sata1_reset: SATA1 reset handler
+ * @sata0_pclk: SATA0 PCLK handler
+ * @sata1_pclk: SATA1 PCLK handler
+ */
+struct sata_gemini {
+ struct device *dev;
+ void __iomem *base;
+ enum gemini_muxmode muxmode;
+ bool ide_pins;
+ bool sata_bridge;
+ struct reset_control *sata0_reset;
+ struct reset_control *sata1_reset;
+ struct clk *sata0_pclk;
+ struct clk *sata1_pclk;
+};
+
+/* Miscellaneous Control Register */
+#define GEMINI_GLOBAL_MISC_CTRL 0x30
+/*
+ * Values of IDE IOMUX bits in the misc control register
+ *
+ * Bits 26:24 are "IDE IO Select", which decides what SATA
+ * adapters are connected to which of the two IDE/ATA
+ * controllers in the Gemini. We can connect the two IDE blocks
+ * to one SATA adapter each, both acting as master, or one IDE
+ * blocks to two SATA adapters so the IDE block can act in a
+ * master/slave configuration.
+ *
+ * We also bring out different blocks on the actual IDE
+ * pins (not SATA pins) if (and only if) these are muxed in.
+ *
+ * 111-100 - Reserved
+ * Mode 0: 000 - ata0 master <-> sata0
+ * ata1 master <-> sata1
+ * ata0 slave interface brought out on IDE pads
+ * Mode 1: 001 - ata0 master <-> sata0
+ * ata1 master <-> sata1
+ * ata1 slave interface brought out on IDE pads
+ * Mode 2: 010 - ata1 master <-> sata1
+ * ata1 slave <-> sata0
+ * ata0 master and slave interfaces brought out
+ * on IDE pads
+ * Mode 3: 011 - ata0 master <-> sata0
+ * ata1 slave <-> sata1
+ * ata1 master and slave interfaces brought out
+ * on IDE pads
+ */
+#define GEMINI_IDE_IOMUX_MASK (7 << 24)
+#define GEMINI_IDE_IOMUX_MODE0 (0 << 24)
+#define GEMINI_IDE_IOMUX_MODE1 (1 << 24)
+#define GEMINI_IDE_IOMUX_MODE2 (2 << 24)
+#define GEMINI_IDE_IOMUX_MODE3 (3 << 24)
+#define GEMINI_IDE_IOMUX_SHIFT (24)
+
+/*
+ * Registers directly controlling the PATA<->SATA adapters
+ */
+#define GEMINI_SATA_ID 0x00
+#define GEMINI_SATA_PHY_ID 0x04
+#define GEMINI_SATA0_STATUS 0x08
+#define GEMINI_SATA1_STATUS 0x0c
+#define GEMINI_SATA0_CTRL 0x18
+#define GEMINI_SATA1_CTRL 0x1c
+
+#define GEMINI_SATA_STATUS_BIST_DONE BIT(5)
+#define GEMINI_SATA_STATUS_BIST_OK BIT(4)
+#define GEMINI_SATA_STATUS_PHY_READY BIT(0)
+
+#define GEMINI_SATA_CTRL_PHY_BIST_EN BIT(14)
+#define GEMINI_SATA_CTRL_PHY_FORCE_IDLE BIT(13)
+#define GEMINI_SATA_CTRL_PHY_FORCE_READY BIT(12)
+#define GEMINI_SATA_CTRL_PHY_AFE_LOOP_EN BIT(10)
+#define GEMINI_SATA_CTRL_PHY_DIG_LOOP_EN BIT(9)
+#define GEMINI_SATA_CTRL_HOTPLUG_DETECT_EN BIT(4)
+#define GEMINI_SATA_CTRL_ATAPI_EN BIT(3)
+#define GEMINI_SATA_CTRL_BUS_WITH_20 BIT(2)
+#define GEMINI_SATA_CTRL_SLAVE_EN BIT(1)
+#define GEMINI_SATA_CTRL_EN BIT(0)
+
+/*
+ * There is only ever one instance of this bridge on a system,
+ * so create a singleton so that the FTIDE010 instances can grab
+ * a reference to it.
+ */
+static struct sata_gemini *sg_singleton;
+
+struct sata_gemini *gemini_sata_bridge_get(void)
+{
+ if (sg_singleton)
+ return sg_singleton;
+ return ERR_PTR(-EPROBE_DEFER);
+}
+EXPORT_SYMBOL(gemini_sata_bridge_get);
+
+bool gemini_sata_bridge_enabled(struct sata_gemini *sg, bool is_ata1)
+{
+ if (!sg->sata_bridge)
+ return false;
+ /*
+ * In muxmode 2 and 3 one of the ATA controllers is
+ * actually not connected to any SATA bridge.
+ */
+ if ((sg->muxmode == GEMINI_MUXMODE_2) &&
+ !is_ata1)
+ return false;
+ if ((sg->muxmode == GEMINI_MUXMODE_3) &&
+ is_ata1)
+ return false;
+
+ return true;
+}
+EXPORT_SYMBOL(gemini_sata_bridge_enabled);
+
+enum gemini_muxmode gemini_sata_get_muxmode(struct sata_gemini *sg)
+{
+ return sg->muxmode;
+}
+EXPORT_SYMBOL(gemini_sata_get_muxmode);
+
+static int gemini_sata_setup_bridge(struct sata_gemini *sg,
+ unsigned int bridge)
+{
+ unsigned long timeout = jiffies + (HZ * 1);
+ bool bridge_online;
+ u32 val;
+
+ if (bridge == 0) {
+ val = GEMINI_SATA_CTRL_HOTPLUG_DETECT_EN | GEMINI_SATA_CTRL_EN;
+ /* SATA0 slave mode is only used in muxmode 2 */
+ if (sg->muxmode == GEMINI_MUXMODE_2)
+ val |= GEMINI_SATA_CTRL_SLAVE_EN;
+ writel(val, sg->base + GEMINI_SATA0_CTRL);
+ } else {
+ val = GEMINI_SATA_CTRL_HOTPLUG_DETECT_EN | GEMINI_SATA_CTRL_EN;
+ /* SATA1 slave mode is only used in muxmode 3 */
+ if (sg->muxmode == GEMINI_MUXMODE_3)
+ val |= GEMINI_SATA_CTRL_SLAVE_EN;
+ writel(val, sg->base + GEMINI_SATA1_CTRL);
+ }
+
+ /* Vendor code waits 10 ms here */
+ msleep(10);
+
+ /* Wait for PHY to become ready */
+ do {
+ msleep(100);
+
+ if (bridge == 0)
+ val = readl(sg->base + GEMINI_SATA0_STATUS);
+ else
+ val = readl(sg->base + GEMINI_SATA1_STATUS);
+ if (val & GEMINI_SATA_STATUS_PHY_READY)
+ break;
+ } while (time_before(jiffies, timeout));
+
+ bridge_online = !!(val & GEMINI_SATA_STATUS_PHY_READY);
+
+ dev_info(sg->dev, "SATA%d PHY %s\n", bridge,
+ bridge_online ? "ready" : "not ready");
+
+ return bridge_online ? 0: -ENODEV;
+}
+
+int gemini_sata_start_bridge(struct sata_gemini *sg, unsigned int bridge)
+{
+ struct clk *pclk;
+ int ret;
+
+ if (bridge == 0)
+ pclk = sg->sata0_pclk;
+ else
+ pclk = sg->sata1_pclk;
+ clk_enable(pclk);
+ msleep(10);
+
+ /* Do not keep clocking a bridge that is not online */
+ ret = gemini_sata_setup_bridge(sg, bridge);
+ if (ret)
+ clk_disable(pclk);
+
+ return ret;
+}
+EXPORT_SYMBOL(gemini_sata_start_bridge);
+
+void gemini_sata_stop_bridge(struct sata_gemini *sg, unsigned int bridge)
+{
+ if (bridge == 0)
+ clk_disable(sg->sata0_pclk);
+ else if (bridge == 1)
+ clk_disable(sg->sata1_pclk);
+}
+EXPORT_SYMBOL(gemini_sata_stop_bridge);
+
+int gemini_sata_reset_bridge(struct sata_gemini *sg,
+ unsigned int bridge)
+{
+ if (bridge == 0)
+ reset_control_reset(sg->sata0_reset);
+ else
+ reset_control_reset(sg->sata1_reset);
+ msleep(10);
+ return gemini_sata_setup_bridge(sg, bridge);
+}
+EXPORT_SYMBOL(gemini_sata_reset_bridge);
+
+static int gemini_sata_bridge_init(struct sata_gemini *sg)
+{
+ struct device *dev = sg->dev;
+ u32 sata_id, sata_phy_id;
+ int ret;
+
+ sg->sata0_pclk = devm_clk_get(dev, "SATA0_PCLK");
+ if (IS_ERR(sg->sata0_pclk)) {
+ dev_err(dev, "no SATA0 PCLK");
+ return -ENODEV;
+ }
+ sg->sata1_pclk = devm_clk_get(dev, "SATA1_PCLK");
+ if (IS_ERR(sg->sata1_pclk)) {
+ dev_err(dev, "no SATA1 PCLK");
+ return -ENODEV;
+ }
+
+ ret = clk_prepare_enable(sg->sata0_pclk);
+ if (ret) {
+ pr_err("failed to enable SATA0 PCLK\n");
+ return ret;
+ }
+ ret = clk_prepare_enable(sg->sata1_pclk);
+ if (ret) {
+ pr_err("failed to enable SATA1 PCLK\n");
+ clk_disable_unprepare(sg->sata0_pclk);
+ return ret;
+ }
+
+ sg->sata0_reset = devm_reset_control_get_exclusive(dev, "sata0");
+ if (IS_ERR(sg->sata0_reset)) {
+ dev_err(dev, "no SATA0 reset controller\n");
+ clk_disable_unprepare(sg->sata1_pclk);
+ clk_disable_unprepare(sg->sata0_pclk);
+ return PTR_ERR(sg->sata0_reset);
+ }
+ sg->sata1_reset = devm_reset_control_get_exclusive(dev, "sata1");
+ if (IS_ERR(sg->sata1_reset)) {
+ dev_err(dev, "no SATA1 reset controller\n");
+ clk_disable_unprepare(sg->sata1_pclk);
+ clk_disable_unprepare(sg->sata0_pclk);
+ return PTR_ERR(sg->sata1_reset);
+ }
+
+ sata_id = readl(sg->base + GEMINI_SATA_ID);
+ sata_phy_id = readl(sg->base + GEMINI_SATA_PHY_ID);
+ sg->sata_bridge = true;
+ clk_disable(sg->sata0_pclk);
+ clk_disable(sg->sata1_pclk);
+
+ dev_info(dev, "SATA ID %08x, PHY ID: %08x\n", sata_id, sata_phy_id);
+
+ return 0;
+}
+
+static int gemini_setup_ide_pins(struct device *dev)
+{
+ struct pinctrl *p;
+ struct pinctrl_state *ide_state;
+ int ret;
+
+ p = devm_pinctrl_get(dev);
+ if (IS_ERR(p))
+ return PTR_ERR(p);
+
+ ide_state = pinctrl_lookup_state(p, "ide");
+ if (IS_ERR(ide_state))
+ return PTR_ERR(ide_state);
+
+ ret = pinctrl_select_state(p, ide_state);
+ if (ret) {
+ dev_err(dev, "could not select IDE state\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int gemini_sata_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct sata_gemini *sg;
+ struct regmap *map;
+ struct resource *res;
+ enum gemini_muxmode muxmode;
+ u32 gmode;
+ u32 gmask;
+ int ret;
+
+ sg = devm_kzalloc(dev, sizeof(*sg), GFP_KERNEL);
+ if (!sg)
+ return -ENOMEM;
+ sg->dev = dev;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENODEV;
+
+ sg->base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(sg->base))
+ return PTR_ERR(sg->base);
+
+ map = syscon_regmap_lookup_by_phandle(np, "syscon");
+ if (IS_ERR(map)) {
+ dev_err(dev, "no global syscon\n");
+ return PTR_ERR(map);
+ }
+
+ /* Set up the SATA bridge if need be */
+ if (of_property_read_bool(np, "cortina,gemini-enable-sata-bridge")) {
+ ret = gemini_sata_bridge_init(sg);
+ if (ret)
+ return ret;
+ }
+
+ if (of_property_read_bool(np, "cortina,gemini-enable-ide-pins"))
+ sg->ide_pins = true;
+
+ if (!sg->sata_bridge && !sg->ide_pins) {
+ dev_err(dev, "neither SATA bridge or IDE output enabled\n");
+ ret = -EINVAL;
+ goto out_unprep_clk;
+ }
+
+ ret = of_property_read_u32(np, "cortina,gemini-ata-muxmode", &muxmode);
+ if (ret) {
+ dev_err(dev, "could not parse ATA muxmode\n");
+ goto out_unprep_clk;
+ }
+ if (muxmode > GEMINI_MUXMODE_3) {
+ dev_err(dev, "illegal muxmode %d\n", muxmode);
+ ret = -EINVAL;
+ goto out_unprep_clk;
+ }
+ sg->muxmode = muxmode;
+ gmask = GEMINI_IDE_IOMUX_MASK;
+ gmode = (muxmode << GEMINI_IDE_IOMUX_SHIFT);
+
+ ret = regmap_update_bits(map, GEMINI_GLOBAL_MISC_CTRL, gmask, gmode);
+ if (ret) {
+ dev_err(dev, "unable to set up IDE muxing\n");
+ ret = -ENODEV;
+ goto out_unprep_clk;
+ }
+
+ /*
+ * Route out the IDE pins if desired.
+ * This is done by looking up a special pin control state called
+ * "ide" that will route out the IDE pins.
+ */
+ if (sg->ide_pins) {
+ ret = gemini_setup_ide_pins(dev);
+ if (ret)
+ return ret;
+ }
+
+ dev_info(dev, "set up the Gemini IDE/SATA nexus\n");
+ platform_set_drvdata(pdev, sg);
+ sg_singleton = sg;
+
+ return 0;
+
+out_unprep_clk:
+ if (sg->sata_bridge) {
+ clk_unprepare(sg->sata1_pclk);
+ clk_unprepare(sg->sata0_pclk);
+ }
+ return ret;
+}
+
+static int gemini_sata_remove(struct platform_device *pdev)
+{
+ struct sata_gemini *sg = platform_get_drvdata(pdev);
+
+ if (sg->sata_bridge) {
+ clk_unprepare(sg->sata1_pclk);
+ clk_unprepare(sg->sata0_pclk);
+ }
+ sg_singleton = NULL;
+
+ return 0;
+}
+
+static const struct of_device_id gemini_sata_of_match[] = {
+ {
+ .compatible = "cortina,gemini-sata-bridge",
+ },
+ {},
+};
+
+static struct platform_driver gemini_sata_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .of_match_table = of_match_ptr(gemini_sata_of_match),
+ },
+ .probe = gemini_sata_probe,
+ .remove = gemini_sata_remove,
+};
+module_platform_driver(gemini_sata_driver);
+
+MODULE_AUTHOR("Linus Walleij <linus.walleij@linaro.org>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/ata/sata_gemini.h b/drivers/ata/sata_gemini.h
new file mode 100644
index 000000000000..ca1837a394c8
--- /dev/null
+++ b/drivers/ata/sata_gemini.h
@@ -0,0 +1,21 @@
+/* Header for the Gemini SATA bridge */
+#ifndef SATA_GEMINI_H
+#define SATA_GEMINI_H
+
+struct sata_gemini;
+
+enum gemini_muxmode {
+ GEMINI_MUXMODE_0 = 0,
+ GEMINI_MUXMODE_1,
+ GEMINI_MUXMODE_2,
+ GEMINI_MUXMODE_3,
+};
+
+struct sata_gemini *gemini_sata_bridge_get(void);
+bool gemini_sata_bridge_enabled(struct sata_gemini *sg, bool is_ata1);
+enum gemini_muxmode gemini_sata_get_muxmode(struct sata_gemini *sg);
+int gemini_sata_start_bridge(struct sata_gemini *sg, unsigned int bridge);
+void gemini_sata_stop_bridge(struct sata_gemini *sg, unsigned int bridge);
+int gemini_sata_reset_bridge(struct sata_gemini *sg, unsigned int bridge);
+
+#endif
diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c
index e81a8217f1ff..9b6d7930d1c7 100644
--- a/drivers/ata/sata_inic162x.c
+++ b/drivers/ata/sata_inic162x.c
@@ -737,7 +737,7 @@ static struct ata_port_operations inic_port_ops = {
.port_start = inic_port_start,
};
-static struct ata_port_info inic_port_info = {
+static const struct ata_port_info inic_port_info = {
.flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index 734f563b8d37..8c683ddd0f58 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -21,7 +21,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* No hardware documentation available outside of NVIDIA.
* This driver programs the NVIDIA SATA controller in a similar
diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c
index 0fa211e2831c..d032bf657f70 100644
--- a/drivers/ata/sata_promise.c
+++ b/drivers/ata/sata_promise.c
@@ -25,7 +25,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* Hardware information only available under NDA.
*
diff --git a/drivers/ata/sata_promise.h b/drivers/ata/sata_promise.h
index 00d6000e546f..61633ef5ed72 100644
--- a/drivers/ata/sata_promise.h
+++ b/drivers/ata/sata_promise.h
@@ -20,7 +20,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
*/
diff --git a/drivers/ata/sata_qstor.c b/drivers/ata/sata_qstor.c
index af987a4f33d1..1fe941688e95 100644
--- a/drivers/ata/sata_qstor.c
+++ b/drivers/ata/sata_qstor.c
@@ -23,7 +23,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
*/
diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c
index b7939a2c1fab..537d11869069 100644
--- a/drivers/ata/sata_rcar.c
+++ b/drivers/ata/sata_rcar.c
@@ -828,7 +828,7 @@ static void sata_rcar_init_controller(struct ata_host *host)
iowrite32(ATAPI_INT_ENABLE_SATAINT, base + ATAPI_INT_ENABLE_REG);
}
-static struct of_device_id sata_rcar_match[] = {
+static const struct of_device_id sata_rcar_match[] = {
{
/* Deprecated by "renesas,sata-r8a7779" */
.compatible = "renesas,rcar-sata",
@@ -858,6 +858,14 @@ static struct of_device_id sata_rcar_match[] = {
.compatible = "renesas,sata-r8a7795",
.data = (void *)RCAR_GEN2_SATA
},
+ {
+ .compatible = "renesas,rcar-gen2-sata",
+ .data = (void *)RCAR_GEN2_SATA
+ },
+ {
+ .compatible = "renesas,rcar-gen3-sata",
+ .data = (void *)RCAR_GEN2_SATA
+ },
{ },
};
MODULE_DEVICE_TABLE(of, sata_rcar_match);
diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c
index 29bcff086bce..ed76f070d21e 100644
--- a/drivers/ata/sata_sil.c
+++ b/drivers/ata/sata_sil.c
@@ -25,7 +25,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* Documentation for SiI 3112:
* http://gkernel.sourceforge.net/specs/sii/3112A_SiI-DS-0095-B2.pdf.bz2
diff --git a/drivers/ata/sata_sis.c b/drivers/ata/sata_sis.c
index d1637ac40a73..30f4f35f36d4 100644
--- a/drivers/ata/sata_sis.c
+++ b/drivers/ata/sata_sis.c
@@ -24,7 +24,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* Hardware documentation available under NDA.
*
diff --git a/drivers/ata/sata_svw.c b/drivers/ata/sata_svw.c
index ff614be55d0f..a9d692c6c182 100644
--- a/drivers/ata/sata_svw.c
+++ b/drivers/ata/sata_svw.c
@@ -30,7 +30,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* Hardware documentation available under NDA.
*
@@ -339,7 +339,7 @@ static int k2_sata_show_info(struct seq_file *m, struct Scsi_Host *shost)
if (!reg)
continue;
if (index == *reg) {
- seq_printf(m, "devspec: %s\n", np->full_name);
+ seq_printf(m, "devspec: %pOF\n", np);
break;
}
}
diff --git a/drivers/ata/sata_sx4.c b/drivers/ata/sata_sx4.c
index 48301cb3a316..405e606a234d 100644
--- a/drivers/ata/sata_sx4.c
+++ b/drivers/ata/sata_sx4.c
@@ -24,7 +24,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* Hardware documentation available under NDA.
*
diff --git a/drivers/ata/sata_uli.c b/drivers/ata/sata_uli.c
index 08f98c3ed5c8..4f6e8d8156de 100644
--- a/drivers/ata/sata_uli.c
+++ b/drivers/ata/sata_uli.c
@@ -18,7 +18,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* Hardware documentation available under NDA.
*
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c
index f3f538eec7b3..93b8d783936a 100644
--- a/drivers/ata/sata_via.c
+++ b/drivers/ata/sata_via.c
@@ -25,7 +25,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* Hardware documentation available under NDA.
*
@@ -80,6 +80,10 @@ struct svia_priv {
bool wd_workaround;
};
+static int vt6420_hotplug;
+module_param_named(vt6420_hotplug, vt6420_hotplug, int, 0644);
+MODULE_PARM_DESC(vt6420_hotplug, "Enable hot-plug support for VT6420 (0=Don't support, 1=support)");
+
static int svia_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
#ifdef CONFIG_PM_SLEEP
static int svia_pci_device_resume(struct pci_dev *pdev);
@@ -166,7 +170,7 @@ static const struct ata_port_info vt6420_port_info = {
.port_ops = &vt6420_sata_ops,
};
-static struct ata_port_info vt6421_sport_info = {
+static const struct ata_port_info vt6421_sport_info = {
.flags = ATA_FLAG_SATA,
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
@@ -174,7 +178,7 @@ static struct ata_port_info vt6421_sport_info = {
.port_ops = &vt6421_sata_ops,
};
-static struct ata_port_info vt6421_pport_info = {
+static const struct ata_port_info vt6421_pport_info = {
.flags = ATA_FLAG_SLAVE_POSS,
.pio_mask = ATA_PIO4,
/* No MWDMA */
@@ -182,7 +186,7 @@ static struct ata_port_info vt6421_pport_info = {
.port_ops = &vt6421_pata_ops,
};
-static struct ata_port_info vt8251_port_info = {
+static const struct ata_port_info vt8251_port_info = {
.flags = ATA_FLAG_SATA | ATA_FLAG_SLAVE_POSS,
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
@@ -473,6 +477,11 @@ static int vt6420_prepare_host(struct pci_dev *pdev, struct ata_host **r_host)
struct ata_host *host;
int rc;
+ if (vt6420_hotplug) {
+ ppi[0]->port_ops->scr_read = svia_scr_read;
+ ppi[0]->port_ops->scr_write = svia_scr_write;
+ }
+
rc = ata_pci_bmdma_prepare_host(pdev, ppi, &host);
if (rc)
return rc;
@@ -556,7 +565,7 @@ static void svia_wd_fix(struct pci_dev *pdev)
pci_write_config_byte(pdev, 0x52, tmp8 | BIT(2));
}
-static irqreturn_t vt6421_interrupt(int irq, void *dev_instance)
+static irqreturn_t vt642x_interrupt(int irq, void *dev_instance)
{
struct ata_host *host = dev_instance;
irqreturn_t rc = ata_bmdma_interrupt(irq, dev_instance);
@@ -644,7 +653,7 @@ static void svia_configure(struct pci_dev *pdev, int board_id,
pci_write_config_byte(pdev, SATA_NATIVE_MODE, tmp8);
}
- if (board_id == vt6421) {
+ if ((board_id == vt6420 && vt6420_hotplug) || board_id == vt6421) {
/* enable IRQ on hotplug */
pci_read_config_byte(pdev, SVIA_MISC_3, &tmp8);
if ((tmp8 & SATA_HOTPLUG) != SATA_HOTPLUG) {
@@ -744,8 +753,8 @@ static int svia_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
svia_configure(pdev, board_id, hpriv);
pci_set_master(pdev);
- if (board_id == vt6421)
- return ata_host_activate(host, pdev->irq, vt6421_interrupt,
+ if ((board_id == vt6420 && vt6420_hotplug) || board_id == vt6421)
+ return ata_host_activate(host, pdev->irq, vt642x_interrupt,
IRQF_SHARED, &svia_sht);
else
return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
diff --git a/drivers/ata/sata_vsc.c b/drivers/ata/sata_vsc.c
index 183eb52085df..9648127cca70 100644
--- a/drivers/ata/sata_vsc.c
+++ b/drivers/ata/sata_vsc.c
@@ -26,7 +26,7 @@
*
*
* libata documentation is available via 'make {ps|pdf}docs',
- * as Documentation/DocBook/libata.*
+ * as Documentation/driver-api/libata.rst
*
* Vitesse hardware documentation presumably available under NDA.
* Intel 31244 (same hardware interface) documentation presumably
diff --git a/drivers/atm/adummy.c b/drivers/atm/adummy.c
index 1fd25e872ece..8d98130ecd40 100644
--- a/drivers/atm/adummy.c
+++ b/drivers/atm/adummy.c
@@ -71,7 +71,7 @@ static struct attribute *adummy_attrs[] = {
NULL
};
-static struct attribute_group adummy_group_attrs = {
+static const struct attribute_group adummy_group_attrs = {
.name = NULL, /* We want them in dev's root folder */
.attrs = adummy_attrs
};
@@ -130,7 +130,7 @@ adummy_proc_read(struct atm_dev *dev, loff_t *pos, char *page)
return 0;
}
-static struct atmdev_ops adummy_ops =
+static const struct atmdev_ops adummy_ops =
{
.open = adummy_open,
.close = adummy_close,
diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c
index 906705e5f776..acf16c323e38 100644
--- a/drivers/atm/ambassador.c
+++ b/drivers/atm/ambassador.c
@@ -2374,7 +2374,7 @@ MODULE_PARM_DESC(pci_lat, "PCI latency in bus cycles");
/********** module entry **********/
-static struct pci_device_id amb_pci_tbl[] = {
+static const struct pci_device_id amb_pci_tbl[] = {
{ PCI_VDEVICE(MADGE, PCI_DEVICE_ID_MADGE_AMBASSADOR), 0 },
{ PCI_VDEVICE(MADGE, PCI_DEVICE_ID_MADGE_AMBASSADOR_BAD), 0 },
{ 0, }
diff --git a/drivers/atm/atmtcp.c b/drivers/atm/atmtcp.c
index 3ef6253e1cce..afebeb1c3e1e 100644
--- a/drivers/atm/atmtcp.c
+++ b/drivers/atm/atmtcp.c
@@ -60,7 +60,7 @@ static int atmtcp_send_control(struct atm_vcc *vcc,int type,
return -EUNATCH;
}
atm_force_charge(out_vcc,skb->truesize);
- new_msg = (struct atmtcp_control *) skb_put(skb,sizeof(*new_msg));
+ new_msg = skb_put(skb, sizeof(*new_msg));
*new_msg = *msg;
new_msg->hdr.length = ATMTCP_HDR_MAGIC;
new_msg->type = type;
@@ -217,7 +217,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
atomic_inc(&vcc->stats->tx_err);
return -ENOBUFS;
}
- hdr = (void *) skb_put(new_skb,sizeof(struct atmtcp_hdr));
+ hdr = skb_put(new_skb, sizeof(struct atmtcp_hdr));
hdr->vpi = htons(vcc->vpi);
hdr->vci = htons(vcc->vci);
hdr->length = htonl(skb->len);
@@ -342,7 +342,7 @@ static struct atmdev_ops atmtcp_v_dev_ops = {
*/
-static struct atmdev_ops atmtcp_c_dev_ops = {
+static const struct atmdev_ops atmtcp_c_dev_ops = {
.close = atmtcp_c_close,
.send = atmtcp_c_send
};
diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
index b042ec458544..ce47eb17901d 100644
--- a/drivers/atm/eni.c
+++ b/drivers/atm/eni.c
@@ -2292,7 +2292,7 @@ err_disable:
}
-static struct pci_device_id eni_pci_tbl[] = {
+static const struct pci_device_id eni_pci_tbl[] = {
{ PCI_VDEVICE(EF, PCI_DEVICE_ID_EF_ATM_FPGA), 0 /* FPGA */ },
{ PCI_VDEVICE(EF, PCI_DEVICE_ID_EF_ATM_ASIC), 1 /* ASIC */ },
{ 0, }
diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
index 22dcab952a24..6b6368a56526 100644
--- a/drivers/atm/firestream.c
+++ b/drivers/atm/firestream.c
@@ -2030,7 +2030,7 @@ static void firestream_remove_one(struct pci_dev *pdev)
func_exit ();
}
-static struct pci_device_id firestream_pci_tbl[] = {
+static const struct pci_device_id firestream_pci_tbl[] = {
{ PCI_VDEVICE(FUJITSU_ME, PCI_DEVICE_ID_FUJITSU_FS50), FS_IS50},
{ PCI_VDEVICE(FUJITSU_ME, PCI_DEVICE_ID_FUJITSU_FS155), FS_IS155},
{ 0, }
diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c
index 637c3e6b0f9e..f8b7e86907cc 100644
--- a/drivers/atm/fore200e.c
+++ b/drivers/atm/fore200e.c
@@ -924,12 +924,7 @@ fore200e_tx_irq(struct fore200e* fore200e)
else {
dev_kfree_skb_any(entry->skb);
}
-#if 1
- /* race fixed by the above incarnation mechanism, but... */
- if (atomic_read(&sk_atm(vcc)->sk_wmem_alloc) < 0) {
- atomic_set(&sk_atm(vcc)->sk_wmem_alloc, 0);
- }
-#endif
+
/* check error condition */
if (*entry->status & STATUS_ERROR)
atomic_inc(&vcc->stats->tx_err);
@@ -1104,7 +1099,7 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp
/* Make device DMA transfer visible to CPU. */
fore200e->bus->dma_sync_for_cpu(fore200e, buffer->data.dma_addr, rpd->rsd[ i ].length, DMA_FROM_DEVICE);
- memcpy(skb_put(skb, rpd->rsd[ i ].length), buffer->data.align_addr, rpd->rsd[ i ].length);
+ skb_put_data(skb, buffer->data.align_addr, rpd->rsd[i].length);
/* Now let the device get at it again. */
fore200e->bus->dma_sync_for_device(fore200e, buffer->data.dma_addr, rpd->rsd[ i ].length, DMA_FROM_DEVICE);
@@ -1130,13 +1125,9 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp
return -ENOMEM;
}
- ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0);
-
vcc->push(vcc, skb);
atomic_inc(&vcc->stats->rx);
- ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0);
-
return 0;
}
@@ -1572,7 +1563,6 @@ fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb)
unsigned long flags;
ASSERT(vcc);
- ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0);
ASSERT(fore200e);
ASSERT(fore200e_vcc);
@@ -2767,7 +2757,7 @@ static void fore200e_pca_remove_one(struct pci_dev *pci_dev)
}
-static struct pci_device_id fore200e_pca_tbl[] = {
+static const struct pci_device_id fore200e_pca_tbl[] = {
{ PCI_VENDOR_ID_FORE, PCI_DEVICE_ID_FORE_PCA200E, PCI_ANY_ID, PCI_ANY_ID,
0, 0, (unsigned long) &fore200e_bus[0] },
{ 0, }
diff --git a/drivers/atm/he.c b/drivers/atm/he.c
index 3617659b9184..e58538c29377 100644
--- a/drivers/atm/he.c
+++ b/drivers/atm/he.c
@@ -161,7 +161,7 @@ static unsigned int clocktab[] = {
CLK_LOW
};
-static struct atmdev_ops he_ops =
+static const struct atmdev_ops he_ops =
{
.open = he_open,
.close = he_close,
@@ -1735,7 +1735,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
__net_timestamp(skb);
list_for_each_entry(heb, &he_vcc->buffers, entry)
- memcpy(skb_put(skb, heb->len), &heb->data, heb->len);
+ skb_put_data(skb, &heb->data, heb->len);
switch (vcc->qos.aal) {
case ATM_AAL0:
@@ -2395,7 +2395,7 @@ he_close(struct atm_vcc *vcc)
* TBRQ, the host issues the close command to the adapter.
*/
- while (((tx_inuse = atomic_read(&sk_atm(vcc)->sk_wmem_alloc)) > 1) &&
+ while (((tx_inuse = refcount_read(&sk_atm(vcc)->sk_wmem_alloc)) > 1) &&
(retry < MAX_RETRY)) {
msleep(sleep);
if (sleep < 250)
@@ -2851,7 +2851,7 @@ MODULE_PARM_DESC(irq_coalesce, "use interrupt coalescing (default 1)");
module_param(sdh, bool, 0);
MODULE_PARM_DESC(sdh, "use SDH framing (default 0)");
-static struct pci_device_id he_pci_tbl[] = {
+static const struct pci_device_id he_pci_tbl[] = {
{ PCI_VDEVICE(FORE, PCI_DEVICE_ID_FORE_HE), 0 },
{ 0, }
};
diff --git a/drivers/atm/horizon.c b/drivers/atm/horizon.c
index 0f18480b33b5..7e76b35f422c 100644
--- a/drivers/atm/horizon.c
+++ b/drivers/atm/horizon.c
@@ -2867,7 +2867,7 @@ MODULE_PARM_DESC(max_tx_size, "maximum size of TX AAL5 frames");
MODULE_PARM_DESC(max_rx_size, "maximum size of RX AAL5 frames");
MODULE_PARM_DESC(pci_lat, "PCI latency in bus cycles");
-static struct pci_device_id hrz_pci_tbl[] = {
+static const struct pci_device_id hrz_pci_tbl[] = {
{ PCI_VENDOR_ID_MADGE, PCI_DEVICE_ID_MADGE_HORIZON, PCI_ANY_ID, PCI_ANY_ID,
0, 0, 0 },
{ 0, }
diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c
index 5ec109533bb9..47f3c4ae0594 100644
--- a/drivers/atm/idt77252.c
+++ b/drivers/atm/idt77252.c
@@ -134,7 +134,7 @@ static int idt77252_proc_read(struct atm_dev *dev, loff_t * pos,
static void idt77252_softint(struct work_struct *work);
-static struct atmdev_ops idt77252_ops =
+static const struct atmdev_ops idt77252_ops =
{
.dev_close = idt77252_dev_close,
.open = idt77252_open,
@@ -724,7 +724,7 @@ push_on_scq(struct idt77252_dev *card, struct vc_map *vc, struct sk_buff *skb)
struct sock *sk = sk_atm(vcc);
vc->estimator->cells += (skb->len + 47) / 48;
- if (atomic_read(&sk->sk_wmem_alloc) >
+ if (refcount_read(&sk->sk_wmem_alloc) >
(sk->sk_sndbuf >> 1)) {
u32 cps = vc->estimator->maxcps;
@@ -1090,8 +1090,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
*((u32 *) sb->data) = aal0;
skb_put(sb, sizeof(u32));
- memcpy(skb_put(sb, ATM_CELL_PAYLOAD),
- cell, ATM_CELL_PAYLOAD);
+ skb_put_data(sb, cell, ATM_CELL_PAYLOAD);
ATM_SKB(sb)->vcc = vcc;
__net_timestamp(sb);
@@ -1159,8 +1158,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
return;
}
skb_queue_walk(&rpp->queue, sb)
- memcpy(skb_put(skb, sb->len),
- sb->data, sb->len);
+ skb_put_data(skb, sb->data, sb->len);
recycle_rx_pool_skb(card, rpp);
@@ -1322,8 +1320,7 @@ idt77252_rx_raw(struct idt77252_dev *card)
*((u32 *) sb->data) = header;
skb_put(sb, sizeof(u32));
- memcpy(skb_put(sb, ATM_CELL_PAYLOAD), &(queue->data[16]),
- ATM_CELL_PAYLOAD);
+ skb_put_data(sb, &(queue->data[16]), ATM_CELL_PAYLOAD);
ATM_SKB(sb)->vcc = vcc;
__net_timestamp(sb);
@@ -2012,9 +2009,9 @@ idt77252_send_oam(struct atm_vcc *vcc, void *cell, int flags)
atomic_inc(&vcc->stats->tx_err);
return -ENOMEM;
}
- atomic_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc);
+ refcount_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc);
- memcpy(skb_put(skb, 52), cell, 52);
+ skb_put_data(skb, cell, 52);
return idt77252_send_skb(vcc, skb, 1);
}
@@ -3728,7 +3725,7 @@ err_out_disable_pdev:
return err;
}
-static struct pci_device_id idt77252_pci_tbl[] =
+static const struct pci_device_id idt77252_pci_tbl[] =
{
{ PCI_VDEVICE(IDT, PCI_DEVICE_ID_IDT_IDT77252), 0 },
{ 0, }
diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c
index a4fa6c82261e..fc72b763fdd7 100644
--- a/drivers/atm/iphase.c
+++ b/drivers/atm/iphase.c
@@ -3266,7 +3266,7 @@ static void ia_remove_one(struct pci_dev *pdev)
kfree(iadev);
}
-static struct pci_device_id ia_pci_tbl[] = {
+static const struct pci_device_id ia_pci_tbl[] = {
{ PCI_VENDOR_ID_IPHASE, 0x0008, PCI_ANY_ID, PCI_ANY_ID, },
{ PCI_VENDOR_ID_IPHASE, 0x0009, PCI_ANY_ID, PCI_ANY_ID, },
{ 0,}
diff --git a/drivers/atm/lanai.c b/drivers/atm/lanai.c
index 1a9bc51284b0..2351dad78ff5 100644
--- a/drivers/atm/lanai.c
+++ b/drivers/atm/lanai.c
@@ -2589,7 +2589,7 @@ static int lanai_init_one(struct pci_dev *pci,
return result;
}
-static struct pci_device_id lanai_pci_tbl[] = {
+static const struct pci_device_id lanai_pci_tbl[] = {
{ PCI_VDEVICE(EF, PCI_DEVICE_ID_EF_ATM_LANAI2) },
{ PCI_VDEVICE(EF, PCI_DEVICE_ID_EF_ATM_LANAIHB) },
{ 0, } /* terminal entry */
diff --git a/drivers/atm/nicstar.c b/drivers/atm/nicstar.c
index d879f3bca107..a9702836cbae 100644
--- a/drivers/atm/nicstar.c
+++ b/drivers/atm/nicstar.c
@@ -154,7 +154,7 @@ static unsigned char ns_phy_get(struct atm_dev *dev, unsigned long addr);
static struct ns_dev *cards[NS_MAX_CARDS];
static unsigned num_cards;
-static struct atmdev_ops atm_ops = {
+static const struct atmdev_ops atm_ops = {
.open = ns_open,
.close = ns_close,
.ioctl = ns_ioctl,
@@ -253,7 +253,7 @@ static void nicstar_remove_one(struct pci_dev *pcidev)
kfree(card);
}
-static struct pci_device_id nicstar_pci_tbl[] = {
+static const struct pci_device_id nicstar_pci_tbl[] = {
{ PCI_VDEVICE(IDT, PCI_DEVICE_ID_IDT_IDT77201), 0 },
{0,} /* terminate list */
};
diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
index 5ad037c07ec7..0df1a1c80b00 100644
--- a/drivers/atm/solos-pci.c
+++ b/drivers/atm/solos-pci.c
@@ -205,7 +205,7 @@ static ssize_t solos_param_show(struct device *dev, struct device_attribute *att
return -ENOMEM;
}
- header = (void *)skb_put(skb, sizeof(*header));
+ header = skb_put(skb, sizeof(*header));
buflen = snprintf((void *)&header[1], buflen - 1,
"L%05d\n%s\n", current->pid, attr->attr.name);
@@ -261,7 +261,7 @@ static ssize_t solos_param_store(struct device *dev, struct device_attribute *at
return -ENOMEM;
}
- header = (void *)skb_put(skb, sizeof(*header));
+ header = skb_put(skb, sizeof(*header));
buflen = snprintf((void *)&header[1], buflen - 1,
"L%05d\n%s\n%s\n", current->pid, attr->attr.name, buf);
@@ -486,14 +486,14 @@ static int send_command(struct solos_card *card, int dev, const char *buf, size_
return 0;
}
- header = (void *)skb_put(skb, sizeof(*header));
+ header = skb_put(skb, sizeof(*header));
header->size = cpu_to_le16(size);
header->vpi = cpu_to_le16(0);
header->vci = cpu_to_le16(0);
header->type = cpu_to_le16(PKT_COMMAND);
- memcpy(skb_put(skb, size), buf, size);
+ skb_put_data(skb, buf, size);
fpga_queue(card, dev, skb, NULL);
@@ -611,7 +611,7 @@ static struct attribute *solos_attrs[] = {
NULL
};
-static struct attribute_group solos_attr_group = {
+static const struct attribute_group solos_attr_group = {
.attrs = solos_attrs,
.name = "parameters",
};
@@ -628,7 +628,7 @@ static struct attribute *gpio_attrs[] = {
NULL
};
-static struct attribute_group gpio_attr_group = {
+static const struct attribute_group gpio_attr_group = {
.attrs = gpio_attrs,
.name = "gpio",
};
@@ -945,7 +945,7 @@ static int popen(struct atm_vcc *vcc)
dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n");
return -ENOMEM;
}
- header = (void *)skb_put(skb, sizeof(*header));
+ header = skb_put(skb, sizeof(*header));
header->size = cpu_to_le16(0);
header->vpi = cpu_to_le16(vcc->vpi);
@@ -982,7 +982,7 @@ static void pclose(struct atm_vcc *vcc)
dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n");
return;
}
- header = (void *)skb_put(skb, sizeof(*header));
+ header = skb_put(skb, sizeof(*header));
header->size = cpu_to_le16(0);
header->vpi = cpu_to_le16(vcc->vpi);
@@ -1174,7 +1174,7 @@ static int psend(struct atm_vcc *vcc, struct sk_buff *skb)
}
}
- header = (void *)skb_push(skb, sizeof(*header));
+ header = skb_push(skb, sizeof(*header));
/* This does _not_ include the size of the header */
header->size = cpu_to_le16(pktlen);
@@ -1187,7 +1187,7 @@ static int psend(struct atm_vcc *vcc, struct sk_buff *skb)
return 0;
}
-static struct atmdev_ops fpga_ops = {
+static const struct atmdev_ops fpga_ops = {
.open = popen,
.close = pclose,
.ioctl = NULL,
@@ -1251,10 +1251,10 @@ static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id)
if (reset) {
iowrite32(1, card->config_regs + FPGA_MODE);
- data32 = ioread32(card->config_regs + FPGA_MODE);
+ ioread32(card->config_regs + FPGA_MODE);
iowrite32(0, card->config_regs + FPGA_MODE);
- data32 = ioread32(card->config_regs + FPGA_MODE);
+ ioread32(card->config_regs + FPGA_MODE);
}
data32 = ioread32(card->config_regs + FPGA_VER);
@@ -1398,7 +1398,7 @@ static int atm_init(struct solos_card *card, struct device *parent)
continue;
}
- header = (void *)skb_put(skb, sizeof(*header));
+ header = skb_put(skb, sizeof(*header));
header->size = cpu_to_le16(0);
header->vpi = cpu_to_le16(0);
@@ -1476,7 +1476,7 @@ static void fpga_remove(struct pci_dev *dev)
kfree(card);
}
-static struct pci_device_id fpga_pci_tbl[] = {
+static const struct pci_device_id fpga_pci_tbl[] = {
{ 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ 0, }
};
diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c
index 292dec18ffb8..1ef67db03c8e 100644
--- a/drivers/atm/zatm.c
+++ b/drivers/atm/zatm.c
@@ -1613,7 +1613,7 @@ static int zatm_init_one(struct pci_dev *pci_dev,
ret = dma_set_mask_and_coherent(&pci_dev->dev, DMA_BIT_MASK(32));
if (ret < 0)
- goto out_disable;
+ goto out_release;
zatm_dev->pci_dev = pci_dev;
dev->dev_data = zatm_dev;
@@ -1642,7 +1642,7 @@ out_free:
MODULE_LICENSE("GPL");
-static struct pci_device_id zatm_pci_tbl[] = {
+static const struct pci_device_id zatm_pci_tbl[] = {
{ PCI_VDEVICE(ZEITNET, PCI_DEVICE_ID_ZEITNET_1221), ZATM_COPPER },
{ PCI_VDEVICE(ZEITNET, PCI_DEVICE_ID_ZEITNET_1225), 0 },
{ 0, }
diff --git a/drivers/auxdisplay/charlcd.c b/drivers/auxdisplay/charlcd.c
index cfeb049a01ef..642afd88870b 100644
--- a/drivers/auxdisplay/charlcd.c
+++ b/drivers/auxdisplay/charlcd.c
@@ -647,18 +647,25 @@ static ssize_t charlcd_write(struct file *file, const char __user *buf,
static int charlcd_open(struct inode *inode, struct file *file)
{
struct charlcd_priv *priv = to_priv(the_charlcd);
+ int ret;
+ ret = -EBUSY;
if (!atomic_dec_and_test(&charlcd_available))
- return -EBUSY; /* open only once at a time */
+ goto fail; /* open only once at a time */
+ ret = -EPERM;
if (file->f_mode & FMODE_READ) /* device is write-only */
- return -EPERM;
+ goto fail;
if (priv->must_clear) {
charlcd_clear_display(&priv->lcd);
priv->must_clear = false;
}
return nonseekable_open(inode, file);
+
+ fail:
+ atomic_inc(&charlcd_available);
+ return ret;
}
static int charlcd_release(struct inode *inode, struct file *file)
diff --git a/drivers/auxdisplay/panel.c b/drivers/auxdisplay/panel.c
index e0c014c2356f..6911acd896d9 100644
--- a/drivers/auxdisplay/panel.c
+++ b/drivers/auxdisplay/panel.c
@@ -877,21 +877,21 @@ static void lcd_clear_fast_tilcd(struct charlcd *charlcd)
spin_unlock_irq(&pprt_lock);
}
-static struct charlcd_ops charlcd_serial_ops = {
+static const struct charlcd_ops charlcd_serial_ops = {
.write_cmd = lcd_write_cmd_s,
.write_data = lcd_write_data_s,
.clear_fast = lcd_clear_fast_s,
.backlight = lcd_backlight,
};
-static struct charlcd_ops charlcd_parallel_ops = {
+static const struct charlcd_ops charlcd_parallel_ops = {
.write_cmd = lcd_write_cmd_p8,
.write_data = lcd_write_data_p8,
.clear_fast = lcd_clear_fast_p8,
.backlight = lcd_backlight,
};
-static struct charlcd_ops charlcd_tilcd_ops = {
+static const struct charlcd_ops charlcd_tilcd_ops = {
.write_cmd = lcd_write_cmd_tilcd,
.write_data = lcd_write_data_tilcd,
.clear_fast = lcd_clear_fast_tilcd,
@@ -1105,14 +1105,21 @@ static ssize_t keypad_read(struct file *file,
static int keypad_open(struct inode *inode, struct file *file)
{
+ int ret;
+
+ ret = -EBUSY;
if (!atomic_dec_and_test(&keypad_available))
- return -EBUSY; /* open only once at a time */
+ goto fail; /* open only once at a time */
+ ret = -EPERM;
if (file->f_mode & FMODE_WRITE) /* device is read-only */
- return -EPERM;
+ goto fail;
keypad_buflen = 0; /* flush the buffer on opening */
return 0;
+ fail:
+ atomic_inc(&keypad_available);
+ return ret;
}
static int keypad_release(struct inode *inode, struct file *file)
@@ -1345,14 +1352,11 @@ static inline void input_state_falling(struct logical_input *input)
static void panel_process_inputs(void)
{
- struct list_head *item;
struct logical_input *input;
keypressed = 0;
inputs_stable = 1;
- list_for_each(item, &logical_inputs) {
- input = list_entry(item, struct logical_input, list);
-
+ list_for_each_entry(input, &logical_inputs, list) {
switch (input->state) {
case INPUT_ST_LOW:
if ((phys_curr & input->mask) != input->value)
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index d718ae4b907a..1a5f6a157a57 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -140,13 +140,10 @@ config EXTRA_FIRMWARE
config EXTRA_FIRMWARE_DIR
string "Firmware blobs root directory"
depends on EXTRA_FIRMWARE != ""
- default "firmware"
+ default "/lib/firmware"
help
This option controls the directory in which the kernel build system
looks for the firmware files listed in the EXTRA_FIRMWARE option.
- The default is firmware/ in the kernel source tree, but by changing
- this option you can point it elsewhere, such as /lib/firmware/ or
- some other directory containing the firmware files.
config FW_LOADER_USER_HELPER
bool
@@ -339,4 +336,12 @@ config CMA_ALIGNMENT
endif
+config GENERIC_ARCH_TOPOLOGY
+ bool
+ help
+ Enable support for architectures common topology code: e.g., parsing
+ CPU capacity information from DT, usage of such information for
+ appropriate scaling, sysfs interface for changing capacity values at
+ runtime.
+
endmenu
diff --git a/drivers/base/Makefile b/drivers/base/Makefile
index f2816f6ff76a..397e5c344e6a 100644
--- a/drivers/base/Makefile
+++ b/drivers/base/Makefile
@@ -23,6 +23,7 @@ obj-$(CONFIG_SOC_BUS) += soc.o
obj-$(CONFIG_PINCTRL) += pinctrl.o
obj-$(CONFIG_DEV_COREDUMP) += devcoredump.o
obj-$(CONFIG_GENERIC_MSI_IRQ_DOMAIN) += platform-msi.o
+obj-$(CONFIG_GENERIC_ARCH_TOPOLOGY) += arch_topology.o
obj-y += test/
diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
new file mode 100644
index 000000000000..6df7d6676a48
--- /dev/null
+++ b/drivers/base/arch_topology.c
@@ -0,0 +1,243 @@
+/*
+ * Arch specific cpu topology information
+ *
+ * Copyright (C) 2016, ARM Ltd.
+ * Written by: Juri Lelli, ARM Ltd.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Released under the GPLv2 only.
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#include <linux/acpi.h>
+#include <linux/arch_topology.h>
+#include <linux/cpu.h>
+#include <linux/cpufreq.h>
+#include <linux/device.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/sched/topology.h>
+
+static DEFINE_MUTEX(cpu_scale_mutex);
+static DEFINE_PER_CPU(unsigned long, cpu_scale) = SCHED_CAPACITY_SCALE;
+
+unsigned long topology_get_cpu_scale(struct sched_domain *sd, int cpu)
+{
+ return per_cpu(cpu_scale, cpu);
+}
+
+void topology_set_cpu_scale(unsigned int cpu, unsigned long capacity)
+{
+ per_cpu(cpu_scale, cpu) = capacity;
+}
+
+static ssize_t cpu_capacity_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct cpu *cpu = container_of(dev, struct cpu, dev);
+
+ return sprintf(buf, "%lu\n", topology_get_cpu_scale(NULL, cpu->dev.id));
+}
+
+static ssize_t cpu_capacity_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct cpu *cpu = container_of(dev, struct cpu, dev);
+ int this_cpu = cpu->dev.id;
+ int i;
+ unsigned long new_capacity;
+ ssize_t ret;
+
+ if (!count)
+ return 0;
+
+ ret = kstrtoul(buf, 0, &new_capacity);
+ if (ret)
+ return ret;
+ if (new_capacity > SCHED_CAPACITY_SCALE)
+ return -EINVAL;
+
+ mutex_lock(&cpu_scale_mutex);
+ for_each_cpu(i, &cpu_topology[this_cpu].core_sibling)
+ topology_set_cpu_scale(i, new_capacity);
+ mutex_unlock(&cpu_scale_mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR_RW(cpu_capacity);
+
+static int register_cpu_capacity_sysctl(void)
+{
+ int i;
+ struct device *cpu;
+
+ for_each_possible_cpu(i) {
+ cpu = get_cpu_device(i);
+ if (!cpu) {
+ pr_err("%s: too early to get CPU%d device!\n",
+ __func__, i);
+ continue;
+ }
+ device_create_file(cpu, &dev_attr_cpu_capacity);
+ }
+
+ return 0;
+}
+subsys_initcall(register_cpu_capacity_sysctl);
+
+static u32 capacity_scale;
+static u32 *raw_capacity;
+
+static int __init free_raw_capacity(void)
+{
+ kfree(raw_capacity);
+ raw_capacity = NULL;
+
+ return 0;
+}
+
+void topology_normalize_cpu_scale(void)
+{
+ u64 capacity;
+ int cpu;
+
+ if (!raw_capacity)
+ return;
+
+ pr_debug("cpu_capacity: capacity_scale=%u\n", capacity_scale);
+ mutex_lock(&cpu_scale_mutex);
+ for_each_possible_cpu(cpu) {
+ pr_debug("cpu_capacity: cpu=%d raw_capacity=%u\n",
+ cpu, raw_capacity[cpu]);
+ capacity = (raw_capacity[cpu] << SCHED_CAPACITY_SHIFT)
+ / capacity_scale;
+ topology_set_cpu_scale(cpu, capacity);
+ pr_debug("cpu_capacity: CPU%d cpu_capacity=%lu\n",
+ cpu, topology_get_cpu_scale(NULL, cpu));
+ }
+ mutex_unlock(&cpu_scale_mutex);
+}
+
+bool __init topology_parse_cpu_capacity(struct device_node *cpu_node, int cpu)
+{
+ static bool cap_parsing_failed;
+ int ret;
+ u32 cpu_capacity;
+
+ if (cap_parsing_failed)
+ return false;
+
+ ret = of_property_read_u32(cpu_node, "capacity-dmips-mhz",
+ &cpu_capacity);
+ if (!ret) {
+ if (!raw_capacity) {
+ raw_capacity = kcalloc(num_possible_cpus(),
+ sizeof(*raw_capacity),
+ GFP_KERNEL);
+ if (!raw_capacity) {
+ pr_err("cpu_capacity: failed to allocate memory for raw capacities\n");
+ cap_parsing_failed = true;
+ return false;
+ }
+ }
+ capacity_scale = max(cpu_capacity, capacity_scale);
+ raw_capacity[cpu] = cpu_capacity;
+ pr_debug("cpu_capacity: %pOF cpu_capacity=%u (raw)\n",
+ cpu_node, raw_capacity[cpu]);
+ } else {
+ if (raw_capacity) {
+ pr_err("cpu_capacity: missing %pOF raw capacity\n",
+ cpu_node);
+ pr_err("cpu_capacity: partial information: fallback to 1024 for all CPUs\n");
+ }
+ cap_parsing_failed = true;
+ free_raw_capacity();
+ }
+
+ return !ret;
+}
+
+#ifdef CONFIG_CPU_FREQ
+static cpumask_var_t cpus_to_visit __initdata;
+static void __init parsing_done_workfn(struct work_struct *work);
+static __initdata DECLARE_WORK(parsing_done_work, parsing_done_workfn);
+
+static int __init
+init_cpu_capacity_callback(struct notifier_block *nb,
+ unsigned long val,
+ void *data)
+{
+ struct cpufreq_policy *policy = data;
+ int cpu;
+
+ if (!raw_capacity)
+ return 0;
+
+ if (val != CPUFREQ_NOTIFY)
+ return 0;
+
+ pr_debug("cpu_capacity: init cpu capacity for CPUs [%*pbl] (to_visit=%*pbl)\n",
+ cpumask_pr_args(policy->related_cpus),
+ cpumask_pr_args(cpus_to_visit));
+
+ cpumask_andnot(cpus_to_visit, cpus_to_visit, policy->related_cpus);
+
+ for_each_cpu(cpu, policy->related_cpus) {
+ raw_capacity[cpu] = topology_get_cpu_scale(NULL, cpu) *
+ policy->cpuinfo.max_freq / 1000UL;
+ capacity_scale = max(raw_capacity[cpu], capacity_scale);
+ }
+
+ if (cpumask_empty(cpus_to_visit)) {
+ topology_normalize_cpu_scale();
+ free_raw_capacity();
+ pr_debug("cpu_capacity: parsing done\n");
+ schedule_work(&parsing_done_work);
+ }
+
+ return 0;
+}
+
+static struct notifier_block init_cpu_capacity_notifier __initdata = {
+ .notifier_call = init_cpu_capacity_callback,
+};
+
+static int __init register_cpufreq_notifier(void)
+{
+ /*
+ * on ACPI-based systems we need to use the default cpu capacity
+ * until we have the necessary code to parse the cpu capacity, so
+ * skip registering cpufreq notifier.
+ */
+ if (!acpi_disabled || !raw_capacity)
+ return -EINVAL;
+
+ if (!alloc_cpumask_var(&cpus_to_visit, GFP_KERNEL)) {
+ pr_err("cpu_capacity: failed to allocate memory for cpus_to_visit\n");
+ return -ENOMEM;
+ }
+
+ cpumask_copy(cpus_to_visit, cpu_possible_mask);
+
+ return cpufreq_register_notifier(&init_cpu_capacity_notifier,
+ CPUFREQ_POLICY_NOTIFIER);
+}
+core_initcall(register_cpufreq_notifier);
+
+static void __init parsing_done_workfn(struct work_struct *work)
+{
+ cpufreq_unregister_notifier(&init_cpu_capacity_notifier,
+ CPUFREQ_POLICY_NOTIFIER);
+}
+
+#else
+core_initcall(free_raw_capacity);
+#endif
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 6470eb8088f4..22a64fd3309b 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -466,35 +466,6 @@ int bus_for_each_drv(struct bus_type *bus, struct device_driver *start,
}
EXPORT_SYMBOL_GPL(bus_for_each_drv);
-static int device_add_attrs(struct bus_type *bus, struct device *dev)
-{
- int error = 0;
- int i;
-
- if (!bus->dev_attrs)
- return 0;
-
- for (i = 0; bus->dev_attrs[i].attr.name; i++) {
- error = device_create_file(dev, &bus->dev_attrs[i]);
- if (error) {
- while (--i >= 0)
- device_remove_file(dev, &bus->dev_attrs[i]);
- break;
- }
- }
- return error;
-}
-
-static void device_remove_attrs(struct bus_type *bus, struct device *dev)
-{
- int i;
-
- if (bus->dev_attrs) {
- for (i = 0; bus->dev_attrs[i].attr.name; i++)
- device_remove_file(dev, &bus->dev_attrs[i]);
- }
-}
-
/**
* bus_add_device - add device to bus
* @dev: device being added
@@ -510,12 +481,9 @@ int bus_add_device(struct device *dev)
if (bus) {
pr_debug("bus: '%s': add device %s\n", bus->name, dev_name(dev));
- error = device_add_attrs(bus, dev);
- if (error)
- goto out_put;
error = device_add_groups(dev, bus->dev_groups);
if (error)
- goto out_id;
+ goto out_put;
error = sysfs_create_link(&bus->p->devices_kset->kobj,
&dev->kobj, dev_name(dev));
if (error)
@@ -532,8 +500,6 @@ out_subsys:
sysfs_remove_link(&bus->p->devices_kset->kobj, dev_name(dev));
out_groups:
device_remove_groups(dev, bus->dev_groups);
-out_id:
- device_remove_attrs(bus, dev);
out_put:
bus_put(dev->bus);
return error;
@@ -590,7 +556,6 @@ void bus_remove_device(struct device *dev)
sysfs_remove_link(&dev->kobj, "subsystem");
sysfs_remove_link(&dev->bus->p->devices_kset->kobj,
dev_name(dev));
- device_remove_attrs(dev->bus, dev);
device_remove_groups(dev, dev->bus->dev_groups);
if (klist_node_attached(&dev->p->knode_bus))
klist_del(&dev->p->knode_bus);
@@ -648,10 +613,7 @@ static void remove_probe_files(struct bus_type *bus)
static ssize_t uevent_store(struct device_driver *drv, const char *buf,
size_t count)
{
- enum kobject_action action;
-
- if (kobject_action_type(buf, count, &action) == 0)
- kobject_uevent(&drv->p->kobj, action);
+ kobject_synth_uevent(&drv->p->kobj, buf, count);
return count;
}
static DRIVER_ATTR_WO(uevent);
@@ -736,7 +698,7 @@ int bus_add_driver(struct device_driver *drv)
out_unregister:
kobject_put(&priv->kobj);
- kfree(drv->p);
+ /* drv->p is freed in driver_release() */
drv->p = NULL;
out_put_bus:
bus_put(bus);
@@ -868,10 +830,7 @@ static void klist_devices_put(struct klist_node *n)
static ssize_t bus_uevent_store(struct bus_type *bus,
const char *buf, size_t count)
{
- enum kobject_action action;
-
- if (kobject_action_type(buf, count, &action) == 0)
- kobject_uevent(&bus->p->subsys.kobj, action);
+ kobject_synth_uevent(&bus->p->subsys.kobj, buf, count);
return count;
}
static BUS_ATTR(uevent, S_IWUSR, NULL, bus_uevent_store);
diff --git a/drivers/base/class.c b/drivers/base/class.c
index a2b2896693d6..52eb8e644acd 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -119,36 +119,6 @@ static void class_put(struct class *cls)
kset_put(&cls->p->subsys);
}
-static int add_class_attrs(struct class *cls)
-{
- int i;
- int error = 0;
-
- if (cls->class_attrs) {
- for (i = 0; cls->class_attrs[i].attr.name; i++) {
- error = class_create_file(cls, &cls->class_attrs[i]);
- if (error)
- goto error;
- }
- }
-done:
- return error;
-error:
- while (--i >= 0)
- class_remove_file(cls, &cls->class_attrs[i]);
- goto done;
-}
-
-static void remove_class_attrs(struct class *cls)
-{
- int i;
-
- if (cls->class_attrs) {
- for (i = 0; cls->class_attrs[i].attr.name; i++)
- class_remove_file(cls, &cls->class_attrs[i]);
- }
-}
-
static void klist_class_dev_get(struct klist_node *n)
{
struct device *dev = container_of(n, struct device, knode_class);
@@ -217,8 +187,6 @@ int __class_register(struct class *cls, struct lock_class_key *key)
}
error = class_add_groups(class_get(cls), cls->class_groups);
class_put(cls);
- error = add_class_attrs(class_get(cls));
- class_put(cls);
return error;
}
EXPORT_SYMBOL_GPL(__class_register);
@@ -226,7 +194,6 @@ EXPORT_SYMBOL_GPL(__class_register);
void class_unregister(struct class *cls)
{
pr_debug("device class '%s': unregistering\n", cls->name);
- remove_class_attrs(cls);
class_remove_groups(cls, cls->class_groups);
kset_unregister(&cls->p->subsys);
}
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 09723532725d..12ebd055724c 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -981,12 +981,9 @@ out:
static ssize_t uevent_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- enum kobject_action action;
+ if (kobject_synth_uevent(&dev->kobj, buf, count))
+ dev_err(dev, "uevent: failed to send synthetic uevent\n");
- if (kobject_action_type(buf, count, &action) == 0)
- kobject_uevent(&dev->kobj, action);
- else
- dev_err(dev, "uevent: unknown action-string\n");
return count;
}
static DEVICE_ATTR_RW(uevent);
@@ -2799,6 +2796,11 @@ void device_shutdown(void)
pm_runtime_get_noresume(dev);
pm_runtime_barrier(dev);
+ if (dev->class && dev->class->shutdown_pre) {
+ if (initcall_debug)
+ dev_info(dev, "shutdown_pre\n");
+ dev->class->shutdown_pre(dev);
+ }
if (dev->bus && dev->bus->shutdown) {
if (initcall_debug)
dev_info(dev, "shutdown\n");
@@ -3016,3 +3018,19 @@ void set_secondary_fwnode(struct device *dev, struct fwnode_handle *fwnode)
else
dev->fwnode = fwnode;
}
+
+/**
+ * device_set_of_node_from_dev - reuse device-tree node of another device
+ * @dev: device whose device-tree node is being set
+ * @dev2: device whose device-tree node is being reused
+ *
+ * Takes another reference to the new device-tree node after first dropping
+ * any reference held to the old node.
+ */
+void device_set_of_node_from_dev(struct device *dev, const struct device *dev2)
+{
+ of_node_put(dev->of_node);
+ dev->of_node = of_node_get(dev2->of_node);
+ dev->of_node_reused = true;
+}
+EXPORT_SYMBOL_GPL(device_set_of_node_from_dev);
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 2c3b359b3536..321cd7b4d817 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -256,9 +256,9 @@ static ssize_t print_cpus_offline(struct device *dev,
buf[n++] = ',';
if (nr_cpu_ids == total_cpus-1)
- n += snprintf(&buf[n], len - n, "%d", nr_cpu_ids);
+ n += snprintf(&buf[n], len - n, "%u", nr_cpu_ids);
else
- n += snprintf(&buf[n], len - n, "%d-%d",
+ n += snprintf(&buf[n], len - n, "%u-%d",
nr_cpu_ids, total_cpus-1);
}
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index c17fefc77345..ad44b40fe284 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -20,6 +20,7 @@
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
+#include <linux/init.h>
#include <linux/module.h>
#include <linux/kthread.h>
#include <linux/wait.h>
@@ -53,6 +54,7 @@ static DEFINE_MUTEX(deferred_probe_mutex);
static LIST_HEAD(deferred_probe_pending_list);
static LIST_HEAD(deferred_probe_active_list);
static atomic_t deferred_trigger_count = ATOMIC_INIT(0);
+static bool initcalls_done;
/*
* In some cases, like suspend to RAM or hibernation, It might be reasonable
@@ -62,6 +64,26 @@ static atomic_t deferred_trigger_count = ATOMIC_INIT(0);
static bool defer_all_probes;
/*
+ * For initcall_debug, show the deferred probes executed in late_initcall
+ * processing.
+ */
+static void deferred_probe_debug(struct device *dev)
+{
+ ktime_t calltime, delta, rettime;
+ unsigned long long duration;
+
+ printk(KERN_DEBUG "deferred probe %s @ %i\n", dev_name(dev),
+ task_pid_nr(current));
+ calltime = ktime_get();
+ bus_probe_device(dev);
+ rettime = ktime_get();
+ delta = ktime_sub(rettime, calltime);
+ duration = (unsigned long long) ktime_to_ns(delta) >> 10;
+ printk(KERN_DEBUG "deferred probe %s returned after %lld usecs\n",
+ dev_name(dev), duration);
+}
+
+/*
* deferred_probe_work_func() - Retry probing devices in the active list.
*/
static void deferred_probe_work_func(struct work_struct *work)
@@ -106,7 +128,10 @@ static void deferred_probe_work_func(struct work_struct *work)
device_pm_unlock();
dev_dbg(dev, "Retrying from deferred list\n");
- bus_probe_device(dev);
+ if (initcall_debug && !initcalls_done)
+ deferred_probe_debug(dev);
+ else
+ bus_probe_device(dev);
mutex_lock(&deferred_probe_mutex);
@@ -215,6 +240,7 @@ static int deferred_probe_initcall(void)
driver_deferred_probe_trigger();
/* Sort as many dependencies as possible before exiting initcalls */
flush_work(&deferred_probe_work);
+ initcalls_done = true;
return 0;
}
late_initcall(deferred_probe_initcall);
diff --git a/drivers/base/dma-coherent.c b/drivers/base/dma-coherent.c
index 640a7e63c453..744f64f43454 100644
--- a/drivers/base/dma-coherent.c
+++ b/drivers/base/dma-coherent.c
@@ -16,9 +16,28 @@ struct dma_coherent_mem {
int flags;
unsigned long *bitmap;
spinlock_t spinlock;
+ bool use_dev_dma_pfn_offset;
};
-static bool dma_init_coherent_memory(
+static struct dma_coherent_mem *dma_coherent_default_memory __ro_after_init;
+
+static inline struct dma_coherent_mem *dev_get_coherent_memory(struct device *dev)
+{
+ if (dev && dev->dma_mem)
+ return dev->dma_mem;
+ return NULL;
+}
+
+static inline dma_addr_t dma_get_device_base(struct device *dev,
+ struct dma_coherent_mem * mem)
+{
+ if (mem->use_dev_dma_pfn_offset)
+ return (mem->pfn_base - dev->dma_pfn_offset) << PAGE_SHIFT;
+ else
+ return mem->device_base;
+}
+
+static int dma_init_coherent_memory(
phys_addr_t phys_addr, dma_addr_t device_addr, size_t size, int flags,
struct dma_coherent_mem **mem)
{
@@ -26,25 +45,28 @@ static bool dma_init_coherent_memory(
void __iomem *mem_base = NULL;
int pages = size >> PAGE_SHIFT;
int bitmap_size = BITS_TO_LONGS(pages) * sizeof(long);
+ int ret;
- if ((flags & (DMA_MEMORY_MAP | DMA_MEMORY_IO)) == 0)
- goto out;
- if (!size)
+ if (!size) {
+ ret = -EINVAL;
goto out;
+ }
- if (flags & DMA_MEMORY_MAP)
- mem_base = memremap(phys_addr, size, MEMREMAP_WC);
- else
- mem_base = ioremap(phys_addr, size);
- if (!mem_base)
+ mem_base = memremap(phys_addr, size, MEMREMAP_WC);
+ if (!mem_base) {
+ ret = -EINVAL;
goto out;
-
+ }
dma_mem = kzalloc(sizeof(struct dma_coherent_mem), GFP_KERNEL);
- if (!dma_mem)
+ if (!dma_mem) {
+ ret = -ENOMEM;
goto out;
+ }
dma_mem->bitmap = kzalloc(bitmap_size, GFP_KERNEL);
- if (!dma_mem->bitmap)
+ if (!dma_mem->bitmap) {
+ ret = -ENOMEM;
goto out;
+ }
dma_mem->virt_base = mem_base;
dma_mem->device_base = device_addr;
@@ -54,17 +76,13 @@ static bool dma_init_coherent_memory(
spin_lock_init(&dma_mem->spinlock);
*mem = dma_mem;
- return true;
+ return 0;
out:
kfree(dma_mem);
- if (mem_base) {
- if (flags & DMA_MEMORY_MAP)
- memunmap(mem_base);
- else
- iounmap(mem_base);
- }
- return false;
+ if (mem_base)
+ memunmap(mem_base);
+ return ret;
}
static void dma_release_coherent_memory(struct dma_coherent_mem *mem)
@@ -72,10 +90,7 @@ static void dma_release_coherent_memory(struct dma_coherent_mem *mem)
if (!mem)
return;
- if (mem->flags & DMA_MEMORY_MAP)
- memunmap(mem->virt_base);
- else
- iounmap(mem->virt_base);
+ memunmap(mem->virt_base);
kfree(mem->bitmap);
kfree(mem);
}
@@ -83,12 +98,13 @@ static void dma_release_coherent_memory(struct dma_coherent_mem *mem)
static int dma_assign_coherent_memory(struct device *dev,
struct dma_coherent_mem *mem)
{
+ if (!dev)
+ return -ENODEV;
+
if (dev->dma_mem)
return -EBUSY;
dev->dma_mem = mem;
- /* FIXME: this routine just ignores DMA_MEMORY_INCLUDES_CHILDREN */
-
return 0;
}
@@ -96,16 +112,16 @@ int dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
dma_addr_t device_addr, size_t size, int flags)
{
struct dma_coherent_mem *mem;
+ int ret;
- if (!dma_init_coherent_memory(phys_addr, device_addr, size, flags,
- &mem))
- return 0;
+ ret = dma_init_coherent_memory(phys_addr, device_addr, size, flags, &mem);
+ if (ret)
+ return ret;
- if (dma_assign_coherent_memory(dev, mem) == 0)
- return flags & DMA_MEMORY_MAP ? DMA_MEMORY_MAP : DMA_MEMORY_IO;
-
- dma_release_coherent_memory(mem);
- return 0;
+ ret = dma_assign_coherent_memory(dev, mem);
+ if (ret)
+ dma_release_coherent_memory(mem);
+ return ret;
}
EXPORT_SYMBOL(dma_declare_coherent_memory);
@@ -133,7 +149,7 @@ void *dma_mark_declared_memory_occupied(struct device *dev,
return ERR_PTR(-EINVAL);
spin_lock_irqsave(&mem->spinlock, flags);
- pos = (device_addr - mem->device_base) >> PAGE_SHIFT;
+ pos = PFN_DOWN(device_addr - dma_get_device_base(dev, mem));
err = bitmap_allocate_region(mem->bitmap, pos, get_order(size));
spin_unlock_irqrestore(&mem->spinlock, flags);
@@ -143,37 +159,14 @@ void *dma_mark_declared_memory_occupied(struct device *dev,
}
EXPORT_SYMBOL(dma_mark_declared_memory_occupied);
-/**
- * dma_alloc_from_coherent() - try to allocate memory from the per-device coherent area
- *
- * @dev: device from which we allocate memory
- * @size: size of requested memory area
- * @dma_handle: This will be filled with the correct dma handle
- * @ret: This pointer will be filled with the virtual address
- * to allocated area.
- *
- * This function should be only called from per-arch dma_alloc_coherent()
- * to support allocation from per-device coherent memory pools.
- *
- * Returns 0 if dma_alloc_coherent should continue with allocating from
- * generic memory areas, or !0 if dma_alloc_coherent should return @ret.
- */
-int dma_alloc_from_coherent(struct device *dev, ssize_t size,
- dma_addr_t *dma_handle, void **ret)
+static void *__dma_alloc_from_coherent(struct dma_coherent_mem *mem,
+ ssize_t size, dma_addr_t *dma_handle)
{
- struct dma_coherent_mem *mem;
int order = get_order(size);
unsigned long flags;
int pageno;
- int dma_memory_map;
-
- if (!dev)
- return 0;
- mem = dev->dma_mem;
- if (!mem)
- return 0;
+ void *ret;
- *ret = NULL;
spin_lock_irqsave(&mem->spinlock, flags);
if (unlikely(size > (mem->size << PAGE_SHIFT)))
@@ -184,21 +177,44 @@ int dma_alloc_from_coherent(struct device *dev, ssize_t size,
goto err;
/*
- * Memory was found in the per-device area.
+ * Memory was found in the coherent area.
*/
*dma_handle = mem->device_base + (pageno << PAGE_SHIFT);
- *ret = mem->virt_base + (pageno << PAGE_SHIFT);
- dma_memory_map = (mem->flags & DMA_MEMORY_MAP);
+ ret = mem->virt_base + (pageno << PAGE_SHIFT);
spin_unlock_irqrestore(&mem->spinlock, flags);
- if (dma_memory_map)
- memset(*ret, 0, size);
- else
- memset_io(*ret, 0, size);
-
- return 1;
-
+ memset(ret, 0, size);
+ return ret;
err:
spin_unlock_irqrestore(&mem->spinlock, flags);
+ return NULL;
+}
+
+/**
+ * dma_alloc_from_dev_coherent() - allocate memory from device coherent pool
+ * @dev: device from which we allocate memory
+ * @size: size of requested memory area
+ * @dma_handle: This will be filled with the correct dma handle
+ * @ret: This pointer will be filled with the virtual address
+ * to allocated area.
+ *
+ * This function should be only called from per-arch dma_alloc_coherent()
+ * to support allocation from per-device coherent memory pools.
+ *
+ * Returns 0 if dma_alloc_coherent should continue with allocating from
+ * generic memory areas, or !0 if dma_alloc_coherent should return @ret.
+ */
+int dma_alloc_from_dev_coherent(struct device *dev, ssize_t size,
+ dma_addr_t *dma_handle, void **ret)
+{
+ struct dma_coherent_mem *mem = dev_get_coherent_memory(dev);
+
+ if (!mem)
+ return 0;
+
+ *ret = __dma_alloc_from_coherent(mem, size, dma_handle);
+ if (*ret)
+ return 1;
+
/*
* In the case where the allocation can not be satisfied from the
* per-device area, try to fall back to generic memory if the
@@ -206,25 +222,20 @@ err:
*/
return mem->flags & DMA_MEMORY_EXCLUSIVE;
}
-EXPORT_SYMBOL(dma_alloc_from_coherent);
+EXPORT_SYMBOL(dma_alloc_from_dev_coherent);
-/**
- * dma_release_from_coherent() - try to free the memory allocated from per-device coherent memory pool
- * @dev: device from which the memory was allocated
- * @order: the order of pages allocated
- * @vaddr: virtual address of allocated pages
- *
- * This checks whether the memory was allocated from the per-device
- * coherent memory pool and if so, releases that memory.
- *
- * Returns 1 if we correctly released the memory, or 0 if
- * dma_release_coherent() should proceed with releasing memory from
- * generic pools.
- */
-int dma_release_from_coherent(struct device *dev, int order, void *vaddr)
+void *dma_alloc_from_global_coherent(ssize_t size, dma_addr_t *dma_handle)
{
- struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL;
+ if (!dma_coherent_default_memory)
+ return NULL;
+ return __dma_alloc_from_coherent(dma_coherent_default_memory, size,
+ dma_handle);
+}
+
+static int __dma_release_from_coherent(struct dma_coherent_mem *mem,
+ int order, void *vaddr)
+{
if (mem && vaddr >= mem->virt_base && vaddr <
(mem->virt_base + (mem->size << PAGE_SHIFT))) {
int page = (vaddr - mem->virt_base) >> PAGE_SHIFT;
@@ -237,28 +248,39 @@ int dma_release_from_coherent(struct device *dev, int order, void *vaddr)
}
return 0;
}
-EXPORT_SYMBOL(dma_release_from_coherent);
/**
- * dma_mmap_from_coherent() - try to mmap the memory allocated from
- * per-device coherent memory pool to userspace
+ * dma_release_from_dev_coherent() - free memory to device coherent memory pool
* @dev: device from which the memory was allocated
- * @vma: vm_area for the userspace memory
- * @vaddr: cpu address returned by dma_alloc_from_coherent
- * @size: size of the memory buffer allocated by dma_alloc_from_coherent
- * @ret: result from remap_pfn_range()
+ * @order: the order of pages allocated
+ * @vaddr: virtual address of allocated pages
*
* This checks whether the memory was allocated from the per-device
- * coherent memory pool and if so, maps that memory to the provided vma.
+ * coherent memory pool and if so, releases that memory.
*
- * Returns 1 if we correctly mapped the memory, or 0 if the caller should
- * proceed with mapping memory from generic pools.
+ * Returns 1 if we correctly released the memory, or 0 if the caller should
+ * proceed with releasing memory from generic pools.
*/
-int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
- void *vaddr, size_t size, int *ret)
+int dma_release_from_dev_coherent(struct device *dev, int order, void *vaddr)
{
- struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL;
+ struct dma_coherent_mem *mem = dev_get_coherent_memory(dev);
+
+ return __dma_release_from_coherent(mem, order, vaddr);
+}
+EXPORT_SYMBOL(dma_release_from_dev_coherent);
+int dma_release_from_global_coherent(int order, void *vaddr)
+{
+ if (!dma_coherent_default_memory)
+ return 0;
+
+ return __dma_release_from_coherent(dma_coherent_default_memory, order,
+ vaddr);
+}
+
+static int __dma_mmap_from_coherent(struct dma_coherent_mem *mem,
+ struct vm_area_struct *vma, void *vaddr, size_t size, int *ret)
+{
if (mem && vaddr >= mem->virt_base && vaddr + size <=
(mem->virt_base + (mem->size << PAGE_SHIFT))) {
unsigned long off = vma->vm_pgoff;
@@ -277,7 +299,39 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
}
return 0;
}
-EXPORT_SYMBOL(dma_mmap_from_coherent);
+
+/**
+ * dma_mmap_from_dev_coherent() - mmap memory from the device coherent pool
+ * @dev: device from which the memory was allocated
+ * @vma: vm_area for the userspace memory
+ * @vaddr: cpu address returned by dma_alloc_from_dev_coherent
+ * @size: size of the memory buffer allocated
+ * @ret: result from remap_pfn_range()
+ *
+ * This checks whether the memory was allocated from the per-device
+ * coherent memory pool and if so, maps that memory to the provided vma.
+ *
+ * Returns 1 if we correctly mapped the memory, or 0 if the caller should
+ * proceed with mapping memory from generic pools.
+ */
+int dma_mmap_from_dev_coherent(struct device *dev, struct vm_area_struct *vma,
+ void *vaddr, size_t size, int *ret)
+{
+ struct dma_coherent_mem *mem = dev_get_coherent_memory(dev);
+
+ return __dma_mmap_from_coherent(mem, vma, vaddr, size, ret);
+}
+EXPORT_SYMBOL(dma_mmap_from_dev_coherent);
+
+int dma_mmap_from_global_coherent(struct vm_area_struct *vma, void *vaddr,
+ size_t size, int *ret)
+{
+ if (!dma_coherent_default_memory)
+ return 0;
+
+ return __dma_mmap_from_coherent(dma_coherent_default_memory, vma,
+ vaddr, size, ret);
+}
/*
* Support for reserved memory regions defined in device tree
@@ -287,18 +341,24 @@ EXPORT_SYMBOL(dma_mmap_from_coherent);
#include <linux/of_fdt.h>
#include <linux/of_reserved_mem.h>
+static struct reserved_mem *dma_reserved_default_memory __initdata;
+
static int rmem_dma_device_init(struct reserved_mem *rmem, struct device *dev)
{
struct dma_coherent_mem *mem = rmem->priv;
-
- if (!mem &&
- !dma_init_coherent_memory(rmem->base, rmem->base, rmem->size,
- DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE,
- &mem)) {
- pr_err("Reserved memory: failed to init DMA memory pool at %pa, size %ld MiB\n",
- &rmem->base, (unsigned long)rmem->size / SZ_1M);
- return -ENODEV;
+ int ret;
+
+ if (!mem) {
+ ret = dma_init_coherent_memory(rmem->base, rmem->base,
+ rmem->size,
+ DMA_MEMORY_EXCLUSIVE, &mem);
+ if (ret) {
+ pr_err("Reserved memory: failed to init DMA memory pool at %pa, size %ld MiB\n",
+ &rmem->base, (unsigned long)rmem->size / SZ_1M);
+ return ret;
+ }
}
+ mem->use_dev_dma_pfn_offset = true;
rmem->priv = mem;
dma_assign_coherent_memory(dev, mem);
return 0;
@@ -307,7 +367,8 @@ static int rmem_dma_device_init(struct reserved_mem *rmem, struct device *dev)
static void rmem_dma_device_release(struct reserved_mem *rmem,
struct device *dev)
{
- dev->dma_mem = NULL;
+ if (dev)
+ dev->dma_mem = NULL;
}
static const struct reserved_mem_ops rmem_dma_ops = {
@@ -327,6 +388,12 @@ static int __init rmem_dma_setup(struct reserved_mem *rmem)
pr_err("Reserved memory: regions without no-map are not yet supported\n");
return -EINVAL;
}
+
+ if (of_get_flat_dt_prop(node, "linux,dma-default", NULL)) {
+ WARN(dma_reserved_default_memory,
+ "Reserved memory: region for default DMA coherent area is redefined\n");
+ dma_reserved_default_memory = rmem;
+ }
#endif
rmem->ops = &rmem_dma_ops;
@@ -334,5 +401,32 @@ static int __init rmem_dma_setup(struct reserved_mem *rmem)
&rmem->base, (unsigned long)rmem->size / SZ_1M);
return 0;
}
+
+static int __init dma_init_reserved_memory(void)
+{
+ const struct reserved_mem_ops *ops;
+ int ret;
+
+ if (!dma_reserved_default_memory)
+ return -ENOMEM;
+
+ ops = dma_reserved_default_memory->ops;
+
+ /*
+ * We rely on rmem_dma_device_init() does not propagate error of
+ * dma_assign_coherent_memory() for "NULL" device.
+ */
+ ret = ops->device_init(dma_reserved_default_memory, NULL);
+
+ if (!ret) {
+ dma_coherent_default_memory = dma_reserved_default_memory->priv;
+ pr_info("DMA: default coherent area is set\n");
+ }
+
+ return ret;
+}
+
+core_initcall(dma_init_reserved_memory);
+
RESERVEDMEM_OF_DECLARE(dma, "shared-dma-pool", rmem_dma_setup);
#endif
diff --git a/drivers/base/dma-mapping.c b/drivers/base/dma-mapping.c
index f3deb6af42ad..e584eddef0a7 100644
--- a/drivers/base/dma-mapping.c
+++ b/drivers/base/dma-mapping.c
@@ -22,20 +22,15 @@ struct dma_devres {
size_t size;
void *vaddr;
dma_addr_t dma_handle;
+ unsigned long attrs;
};
-static void dmam_coherent_release(struct device *dev, void *res)
+static void dmam_release(struct device *dev, void *res)
{
struct dma_devres *this = res;
- dma_free_coherent(dev, this->size, this->vaddr, this->dma_handle);
-}
-
-static void dmam_noncoherent_release(struct device *dev, void *res)
-{
- struct dma_devres *this = res;
-
- dma_free_noncoherent(dev, this->size, this->vaddr, this->dma_handle);
+ dma_free_attrs(dev, this->size, this->vaddr, this->dma_handle,
+ this->attrs);
}
static int dmam_match(struct device *dev, void *res, void *match_data)
@@ -69,7 +64,7 @@ void *dmam_alloc_coherent(struct device *dev, size_t size,
struct dma_devres *dr;
void *vaddr;
- dr = devres_alloc(dmam_coherent_release, sizeof(*dr), gfp);
+ dr = devres_alloc(dmam_release, sizeof(*dr), gfp);
if (!dr)
return NULL;
@@ -104,35 +99,35 @@ void dmam_free_coherent(struct device *dev, size_t size, void *vaddr,
struct dma_devres match_data = { size, vaddr, dma_handle };
dma_free_coherent(dev, size, vaddr, dma_handle);
- WARN_ON(devres_destroy(dev, dmam_coherent_release, dmam_match,
- &match_data));
+ WARN_ON(devres_destroy(dev, dmam_release, dmam_match, &match_data));
}
EXPORT_SYMBOL(dmam_free_coherent);
/**
- * dmam_alloc_non_coherent - Managed dma_alloc_noncoherent()
+ * dmam_alloc_attrs - Managed dma_alloc_attrs()
* @dev: Device to allocate non_coherent memory for
* @size: Size of allocation
* @dma_handle: Out argument for allocated DMA handle
* @gfp: Allocation flags
+ * @attrs: Flags in the DMA_ATTR_* namespace.
*
- * Managed dma_alloc_noncoherent(). Memory allocated using this
- * function will be automatically released on driver detach.
+ * Managed dma_alloc_attrs(). Memory allocated using this function will be
+ * automatically released on driver detach.
*
* RETURNS:
* Pointer to allocated memory on success, NULL on failure.
*/
-void *dmam_alloc_noncoherent(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t gfp)
+void *dmam_alloc_attrs(struct device *dev, size_t size, dma_addr_t *dma_handle,
+ gfp_t gfp, unsigned long attrs)
{
struct dma_devres *dr;
void *vaddr;
- dr = devres_alloc(dmam_noncoherent_release, sizeof(*dr), gfp);
+ dr = devres_alloc(dmam_release, sizeof(*dr), gfp);
if (!dr)
return NULL;
- vaddr = dma_alloc_noncoherent(dev, size, dma_handle, gfp);
+ vaddr = dma_alloc_attrs(dev, size, dma_handle, gfp, attrs);
if (!vaddr) {
devres_free(dr);
return NULL;
@@ -141,32 +136,13 @@ void *dmam_alloc_noncoherent(struct device *dev, size_t size,
dr->vaddr = vaddr;
dr->dma_handle = *dma_handle;
dr->size = size;
+ dr->attrs = attrs;
devres_add(dev, dr);
return vaddr;
}
-EXPORT_SYMBOL(dmam_alloc_noncoherent);
-
-/**
- * dmam_free_coherent - Managed dma_free_noncoherent()
- * @dev: Device to free noncoherent memory for
- * @size: Size of allocation
- * @vaddr: Virtual address of the memory to free
- * @dma_handle: DMA handle of the memory to free
- *
- * Managed dma_free_noncoherent().
- */
-void dmam_free_noncoherent(struct device *dev, size_t size, void *vaddr,
- dma_addr_t dma_handle)
-{
- struct dma_devres match_data = { size, vaddr, dma_handle };
-
- dma_free_noncoherent(dev, size, vaddr, dma_handle);
- WARN_ON(!devres_destroy(dev, dmam_noncoherent_release, dmam_match,
- &match_data));
-}
-EXPORT_SYMBOL(dmam_free_noncoherent);
+EXPORT_SYMBOL(dmam_alloc_attrs);
#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
@@ -200,13 +176,10 @@ int dmam_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
rc = dma_declare_coherent_memory(dev, phys_addr, device_addr, size,
flags);
- if (rc) {
+ if (!rc)
devres_add(dev, res);
- rc = 0;
- } else {
+ else
devres_free(res);
- rc = -ENOMEM;
- }
return rc;
}
@@ -251,7 +224,7 @@ int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size)
{
int ret = -ENXIO;
-#if defined(CONFIG_MMU) && !defined(CONFIG_ARCH_NO_COHERENT_DMA_MMAP)
+#ifndef CONFIG_ARCH_NO_COHERENT_DMA_MMAP
unsigned long user_count = vma_pages(vma);
unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
unsigned long pfn = page_to_pfn(virt_to_page(cpu_addr));
@@ -259,7 +232,7 @@ int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
- if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
+ if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
return ret;
if (off < count && user_count <= (count - off)) {
@@ -268,13 +241,31 @@ int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
user_count << PAGE_SHIFT,
vma->vm_page_prot);
}
-#endif /* CONFIG_MMU && !CONFIG_ARCH_NO_COHERENT_DMA_MMAP */
+#endif /* !CONFIG_ARCH_NO_COHERENT_DMA_MMAP */
return ret;
}
EXPORT_SYMBOL(dma_common_mmap);
#ifdef CONFIG_MMU
+static struct vm_struct *__dma_common_pages_remap(struct page **pages,
+ size_t size, unsigned long vm_flags, pgprot_t prot,
+ const void *caller)
+{
+ struct vm_struct *area;
+
+ area = get_vm_area_caller(size, vm_flags, caller);
+ if (!area)
+ return NULL;
+
+ if (map_vm_area(area, prot, pages)) {
+ vunmap(area->addr);
+ return NULL;
+ }
+
+ return area;
+}
+
/*
* remaps an array of PAGE_SIZE pages into another vm_area
* Cannot be used in non-sleeping contexts
@@ -285,17 +276,12 @@ void *dma_common_pages_remap(struct page **pages, size_t size,
{
struct vm_struct *area;
- area = get_vm_area_caller(size, vm_flags, caller);
+ area = __dma_common_pages_remap(pages, size, vm_flags, prot, caller);
if (!area)
return NULL;
area->pages = pages;
- if (map_vm_area(area, prot, pages)) {
- vunmap(area->addr);
- return NULL;
- }
-
return area->addr;
}
@@ -310,7 +296,7 @@ void *dma_common_contiguous_remap(struct page *page, size_t size,
{
int i;
struct page **pages;
- void *ptr;
+ struct vm_struct *area;
pages = kmalloc(sizeof(struct page *) << get_order(size), GFP_KERNEL);
if (!pages)
@@ -319,11 +305,13 @@ void *dma_common_contiguous_remap(struct page *page, size_t size,
for (i = 0; i < (size >> PAGE_SHIFT); i++)
pages[i] = nth_page(page, i);
- ptr = dma_common_pages_remap(pages, size, vm_flags, prot, caller);
+ area = __dma_common_pages_remap(pages, size, vm_flags, prot, caller);
kfree(pages);
- return ptr;
+ if (!area)
+ return NULL;
+ return area->addr;
}
/*
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index ac350c518e0c..4b57cf5bc81d 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -7,6 +7,8 @@
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/capability.h>
#include <linux/device.h>
#include <linux/module.h>
@@ -30,7 +32,6 @@
#include <linux/syscore_ops.h>
#include <linux/reboot.h>
#include <linux/security.h>
-#include <linux/swait.h>
#include <generated/utsrelease.h>
@@ -112,13 +113,13 @@ static inline long firmware_loading_timeout(void)
* state of the firmware loading.
*/
struct fw_state {
- struct swait_queue_head wq;
+ struct completion completion;
enum fw_status status;
};
static void fw_state_init(struct fw_state *fw_st)
{
- init_swait_queue_head(&fw_st->wq);
+ init_completion(&fw_st->completion);
fw_st->status = FW_STATUS_UNKNOWN;
}
@@ -131,9 +132,7 @@ static int __fw_state_wait_common(struct fw_state *fw_st, long timeout)
{
long ret;
- ret = swait_event_interruptible_timeout(fw_st->wq,
- __fw_state_is_done(READ_ONCE(fw_st->status)),
- timeout);
+ ret = wait_for_completion_killable_timeout(&fw_st->completion, timeout);
if (ret != 0 && fw_st->status == FW_STATUS_ABORTED)
return -ENOENT;
if (!ret)
@@ -148,35 +147,34 @@ static void __fw_state_set(struct fw_state *fw_st,
WRITE_ONCE(fw_st->status, status);
if (status == FW_STATUS_DONE || status == FW_STATUS_ABORTED)
- swake_up(&fw_st->wq);
+ complete_all(&fw_st->completion);
}
#define fw_state_start(fw_st) \
__fw_state_set(fw_st, FW_STATUS_LOADING)
#define fw_state_done(fw_st) \
__fw_state_set(fw_st, FW_STATUS_DONE)
+#define fw_state_aborted(fw_st) \
+ __fw_state_set(fw_st, FW_STATUS_ABORTED)
#define fw_state_wait(fw_st) \
__fw_state_wait_common(fw_st, MAX_SCHEDULE_TIMEOUT)
-#ifndef CONFIG_FW_LOADER_USER_HELPER
-
-#define fw_state_is_aborted(fw_st) false
-
-#else /* CONFIG_FW_LOADER_USER_HELPER */
-
static int __fw_state_check(struct fw_state *fw_st, enum fw_status status)
{
return fw_st->status == status;
}
+#define fw_state_is_aborted(fw_st) \
+ __fw_state_check(fw_st, FW_STATUS_ABORTED)
+
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+
#define fw_state_aborted(fw_st) \
__fw_state_set(fw_st, FW_STATUS_ABORTED)
#define fw_state_is_done(fw_st) \
__fw_state_check(fw_st, FW_STATUS_DONE)
#define fw_state_is_loading(fw_st) \
__fw_state_check(fw_st, FW_STATUS_LOADING)
-#define fw_state_is_aborted(fw_st) \
- __fw_state_check(fw_st, FW_STATUS_ABORTED)
#define fw_state_wait_timeout(fw_st, timeout) \
__fw_state_wait_common(fw_st, timeout)
@@ -303,6 +301,7 @@ static struct firmware_buf *__fw_lookup_buf(const char *fw_name)
return NULL;
}
+/* Returns 1 for batching firmware requests with the same name */
static int fw_lookup_and_allocate_buf(const char *fw_name,
struct firmware_cache *fwc,
struct firmware_buf **buf, void *dbuf,
@@ -316,6 +315,7 @@ static int fw_lookup_and_allocate_buf(const char *fw_name,
kref_get(&tmp->ref);
spin_unlock(&fwc->lock);
*buf = tmp;
+ pr_debug("batched request - sharing the same struct firmware_buf and lookup for multiple requests\n");
return 1;
}
tmp = __allocate_fw_buf(fw_name, fwc, dbuf, size);
@@ -523,6 +523,44 @@ static int fw_add_devm_name(struct device *dev, const char *name)
}
#endif
+static int assign_firmware_buf(struct firmware *fw, struct device *device,
+ unsigned int opt_flags)
+{
+ struct firmware_buf *buf = fw->priv;
+
+ mutex_lock(&fw_lock);
+ if (!buf->size || fw_state_is_aborted(&buf->fw_st)) {
+ mutex_unlock(&fw_lock);
+ return -ENOENT;
+ }
+
+ /*
+ * add firmware name into devres list so that we can auto cache
+ * and uncache firmware for device.
+ *
+ * device may has been deleted already, but the problem
+ * should be fixed in devres or driver core.
+ */
+ /* don't cache firmware handled without uevent */
+ if (device && (opt_flags & FW_OPT_UEVENT) &&
+ !(opt_flags & FW_OPT_NOCACHE))
+ fw_add_devm_name(device, buf->fw_id);
+
+ /*
+ * After caching firmware image is started, let it piggyback
+ * on request firmware.
+ */
+ if (!(opt_flags & FW_OPT_NOCACHE) &&
+ buf->fwc->state == FW_LOADER_START_CACHE) {
+ if (fw_cache_piggyback_on_request(buf->fw_id))
+ kref_get(&buf->ref);
+ }
+
+ /* pass the pages buffer to driver at the last minute */
+ fw_set_page_data(buf, fw);
+ mutex_unlock(&fw_lock);
+ return 0;
+}
/*
* user-mode helper code
@@ -562,23 +600,19 @@ static void fw_load_abort(struct firmware_priv *fw_priv)
static LIST_HEAD(pending_fw_head);
-/* reboot notifier for avoid deadlock with usermode_lock */
-static int fw_shutdown_notify(struct notifier_block *unused1,
- unsigned long unused2, void *unused3)
+static void kill_pending_fw_fallback_reqs(bool only_kill_custom)
{
+ struct firmware_buf *buf;
+ struct firmware_buf *next;
+
mutex_lock(&fw_lock);
- while (!list_empty(&pending_fw_head))
- __fw_load_abort(list_first_entry(&pending_fw_head,
- struct firmware_buf,
- pending_list));
+ list_for_each_entry_safe(buf, next, &pending_fw_head, pending_list) {
+ if (!buf->need_uevent || !only_kill_custom)
+ __fw_load_abort(buf);
+ }
mutex_unlock(&fw_lock);
- return NOTIFY_DONE;
}
-static struct notifier_block fw_shutdown_nb = {
- .notifier_call = fw_shutdown_notify,
-};
-
static ssize_t timeout_show(struct class *class, struct class_attribute *attr,
char *buf)
{
@@ -1023,9 +1057,12 @@ static int _request_firmware_load(struct firmware_priv *fw_priv,
mutex_unlock(&fw_lock);
}
- if (fw_state_is_aborted(&buf->fw_st))
- retval = -EAGAIN;
- else if (buf->is_paged_buf && !buf->data)
+ if (fw_state_is_aborted(&buf->fw_st)) {
+ if (retval == -ERESTARTSYS)
+ retval = -EINTR;
+ else
+ retval = -EAGAIN;
+ } else if (buf->is_paged_buf && !buf->data)
retval = -ENOMEM;
device_del(f_dev);
@@ -1036,46 +1073,56 @@ err_put_dev:
static int fw_load_from_user_helper(struct firmware *firmware,
const char *name, struct device *device,
- unsigned int opt_flags, long timeout)
+ unsigned int opt_flags)
{
struct firmware_priv *fw_priv;
+ long timeout;
+ int ret;
+
+ timeout = firmware_loading_timeout();
+ if (opt_flags & FW_OPT_NOWAIT) {
+ timeout = usermodehelper_read_lock_wait(timeout);
+ if (!timeout) {
+ dev_dbg(device, "firmware: %s loading timed out\n",
+ name);
+ return -EBUSY;
+ }
+ } else {
+ ret = usermodehelper_read_trylock();
+ if (WARN_ON(ret)) {
+ dev_err(device, "firmware: %s will not be loaded\n",
+ name);
+ return ret;
+ }
+ }
fw_priv = fw_create_instance(firmware, name, device, opt_flags);
- if (IS_ERR(fw_priv))
- return PTR_ERR(fw_priv);
+ if (IS_ERR(fw_priv)) {
+ ret = PTR_ERR(fw_priv);
+ goto out_unlock;
+ }
fw_priv->buf = firmware->priv;
- return _request_firmware_load(fw_priv, opt_flags, timeout);
-}
+ ret = _request_firmware_load(fw_priv, opt_flags, timeout);
-#ifdef CONFIG_PM_SLEEP
-/* kill pending requests without uevent to avoid blocking suspend */
-static void kill_requests_without_uevent(void)
-{
- struct firmware_buf *buf;
- struct firmware_buf *next;
+ if (!ret)
+ ret = assign_firmware_buf(firmware, device, opt_flags);
- mutex_lock(&fw_lock);
- list_for_each_entry_safe(buf, next, &pending_fw_head, pending_list) {
- if (!buf->need_uevent)
- __fw_load_abort(buf);
- }
- mutex_unlock(&fw_lock);
+out_unlock:
+ usermodehelper_read_unlock();
+
+ return ret;
}
-#endif
#else /* CONFIG_FW_LOADER_USER_HELPER */
static inline int
fw_load_from_user_helper(struct firmware *firmware, const char *name,
- struct device *device, unsigned int opt_flags,
- long timeout)
+ struct device *device, unsigned int opt_flags)
{
return -ENOENT;
}
-#ifdef CONFIG_PM_SLEEP
-static inline void kill_requests_without_uevent(void) { }
-#endif
+static inline void kill_pending_fw_fallback_reqs(bool only_kill_custom) { }
#endif /* CONFIG_FW_LOADER_USER_HELPER */
@@ -1124,43 +1171,26 @@ _request_firmware_prepare(struct firmware **firmware_p, const char *name,
return 1; /* need to load */
}
-static int assign_firmware_buf(struct firmware *fw, struct device *device,
- unsigned int opt_flags)
+/*
+ * Batched requests need only one wake, we need to do this step last due to the
+ * fallback mechanism. The buf is protected with kref_get(), and it won't be
+ * released until the last user calls release_firmware().
+ *
+ * Failed batched requests are possible as well, in such cases we just share
+ * the struct firmware_buf and won't release it until all requests are woken
+ * and have gone through this same path.
+ */
+static void fw_abort_batch_reqs(struct firmware *fw)
{
- struct firmware_buf *buf = fw->priv;
-
- mutex_lock(&fw_lock);
- if (!buf->size || fw_state_is_aborted(&buf->fw_st)) {
- mutex_unlock(&fw_lock);
- return -ENOENT;
- }
-
- /*
- * add firmware name into devres list so that we can auto cache
- * and uncache firmware for device.
- *
- * device may has been deleted already, but the problem
- * should be fixed in devres or driver core.
- */
- /* don't cache firmware handled without uevent */
- if (device && (opt_flags & FW_OPT_UEVENT) &&
- !(opt_flags & FW_OPT_NOCACHE))
- fw_add_devm_name(device, buf->fw_id);
+ struct firmware_buf *buf;
- /*
- * After caching firmware image is started, let it piggyback
- * on request firmware.
- */
- if (!(opt_flags & FW_OPT_NOCACHE) &&
- buf->fwc->state == FW_LOADER_START_CACHE) {
- if (fw_cache_piggyback_on_request(buf->fw_id))
- kref_get(&buf->ref);
- }
+ /* Loaded directly? */
+ if (!fw || !fw->priv)
+ return;
- /* pass the pages buffer to driver at the last minute */
- fw_set_page_data(buf, fw);
- mutex_unlock(&fw_lock);
- return 0;
+ buf = fw->priv;
+ if (!fw_state_is_aborted(&buf->fw_st))
+ fw_state_aborted(&buf->fw_st);
}
/* called from request_firmware() and request_firmware_work_func() */
@@ -1170,7 +1200,6 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
unsigned int opt_flags)
{
struct firmware *fw = NULL;
- long timeout;
int ret;
if (!firmware_p)
@@ -1185,25 +1214,6 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
if (ret <= 0) /* error or already assigned */
goto out;
- ret = 0;
- timeout = firmware_loading_timeout();
- if (opt_flags & FW_OPT_NOWAIT) {
- timeout = usermodehelper_read_lock_wait(timeout);
- if (!timeout) {
- dev_dbg(device, "firmware: %s loading timed out\n",
- name);
- ret = -EBUSY;
- goto out;
- }
- } else {
- ret = usermodehelper_read_trylock();
- if (WARN_ON(ret)) {
- dev_err(device, "firmware: %s will not be loaded\n",
- name);
- goto out;
- }
- }
-
ret = fw_get_filesystem_firmware(device, fw->priv);
if (ret) {
if (!(opt_flags & FW_OPT_NO_WARN))
@@ -1213,17 +1223,14 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
if (opt_flags & FW_OPT_USERHELPER) {
dev_warn(device, "Falling back to user helper\n");
ret = fw_load_from_user_helper(fw, name, device,
- opt_flags, timeout);
+ opt_flags);
}
- }
-
- if (!ret)
+ } else
ret = assign_firmware_buf(fw, device, opt_flags);
- usermodehelper_read_unlock();
-
out:
if (ret < 0) {
+ fw_abort_batch_reqs(fw);
release_firmware(fw);
fw = NULL;
}
@@ -1724,7 +1731,11 @@ static int fw_pm_notify(struct notifier_block *notify_block,
case PM_HIBERNATION_PREPARE:
case PM_SUSPEND_PREPARE:
case PM_RESTORE_PREPARE:
- kill_requests_without_uevent();
+ /*
+ * kill pending fallback requests with a custom fallback
+ * to avoid stalling suspend.
+ */
+ kill_pending_fw_fallback_reqs(true);
device_cache_fw_images();
break;
@@ -1783,11 +1794,27 @@ static void __init fw_cache_init(void)
#endif
}
+static int fw_shutdown_notify(struct notifier_block *unused1,
+ unsigned long unused2, void *unused3)
+{
+ /*
+ * Kill all pending fallback requests to avoid both stalling shutdown,
+ * and avoid a deadlock with the usermode_lock.
+ */
+ kill_pending_fw_fallback_reqs(false);
+
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block fw_shutdown_nb = {
+ .notifier_call = fw_shutdown_notify,
+};
+
static int __init firmware_class_init(void)
{
fw_cache_init();
-#ifdef CONFIG_FW_LOADER_USER_HELPER
register_reboot_notifier(&fw_shutdown_nb);
+#ifdef CONFIG_FW_LOADER_USER_HELPER
return class_register(&firmware_class);
#else
return 0;
@@ -1800,8 +1827,8 @@ static void __exit firmware_class_exit(void)
unregister_syscore_ops(&fw_syscore_ops);
unregister_pm_notifier(&fw_cache.pm_notify);
#endif
-#ifdef CONFIG_FW_LOADER_USER_HELPER
unregister_reboot_notifier(&fw_shutdown_nb);
+#ifdef CONFIG_FW_LOADER_USER_HELPER
class_unregister(&firmware_class);
#endif
}
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index cc4f1d0cbffe..4e3b61cda520 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -128,6 +128,9 @@ static ssize_t show_mem_removable(struct device *dev,
int ret = 1;
struct memory_block *mem = to_memory_block(dev);
+ if (mem->state != MEM_ONLINE)
+ goto out;
+
for (i = 0; i < sections_per_block; i++) {
if (!present_section_nr(mem->start_section_nr + i))
continue;
@@ -135,6 +138,7 @@ static ssize_t show_mem_removable(struct device *dev,
ret &= is_mem_section_removable(pfn, PAGES_PER_SECTION);
}
+out:
return sprintf(buf, "%d\n", ret);
}
@@ -384,43 +388,57 @@ static ssize_t show_phys_device(struct device *dev,
}
#ifdef CONFIG_MEMORY_HOTREMOVE
+static void print_allowed_zone(char *buf, int nid, unsigned long start_pfn,
+ unsigned long nr_pages, int online_type,
+ struct zone *default_zone)
+{
+ struct zone *zone;
+
+ zone = zone_for_pfn_range(online_type, nid, start_pfn, nr_pages);
+ if (zone != default_zone) {
+ strcat(buf, " ");
+ strcat(buf, zone->name);
+ }
+}
+
static ssize_t show_valid_zones(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct memory_block *mem = to_memory_block(dev);
- unsigned long start_pfn, end_pfn;
- unsigned long valid_start, valid_end, valid_pages;
+ unsigned long start_pfn = section_nr_to_pfn(mem->start_section_nr);
unsigned long nr_pages = PAGES_PER_SECTION * sections_per_block;
- struct zone *zone;
- int zone_shift = 0;
-
- start_pfn = section_nr_to_pfn(mem->start_section_nr);
- end_pfn = start_pfn + nr_pages;
+ unsigned long valid_start_pfn, valid_end_pfn;
+ struct zone *default_zone;
+ int nid;
- /* The block contains more than one zone can not be offlined. */
- if (!test_pages_in_a_zone(start_pfn, end_pfn, &valid_start, &valid_end))
+ /*
+ * The block contains more than one zone can not be offlined.
+ * This can happen e.g. for ZONE_DMA and ZONE_DMA32
+ */
+ if (!test_pages_in_a_zone(start_pfn, start_pfn + nr_pages, &valid_start_pfn, &valid_end_pfn))
return sprintf(buf, "none\n");
- zone = page_zone(pfn_to_page(valid_start));
- valid_pages = valid_end - valid_start;
+ start_pfn = valid_start_pfn;
+ nr_pages = valid_end_pfn - start_pfn;
- /* MMOP_ONLINE_KEEP */
- sprintf(buf, "%s", zone->name);
-
- /* MMOP_ONLINE_KERNEL */
- zone_can_shift(valid_start, valid_pages, ZONE_NORMAL, &zone_shift);
- if (zone_shift) {
- strcat(buf, " ");
- strcat(buf, (zone + zone_shift)->name);
+ /*
+ * Check the existing zone. Make sure that we do that only on the
+ * online nodes otherwise the page_zone is not reliable
+ */
+ if (mem->state == MEM_ONLINE) {
+ strcat(buf, page_zone(pfn_to_page(start_pfn))->name);
+ goto out;
}
- /* MMOP_ONLINE_MOVABLE */
- zone_can_shift(valid_start, valid_pages, ZONE_MOVABLE, &zone_shift);
- if (zone_shift) {
- strcat(buf, " ");
- strcat(buf, (zone + zone_shift)->name);
- }
+ nid = pfn_to_nid(start_pfn);
+ default_zone = zone_for_pfn_range(MMOP_ONLINE_KEEP, nid, start_pfn, nr_pages);
+ strcat(buf, default_zone->name);
+ print_allowed_zone(buf, nid, start_pfn, nr_pages, MMOP_ONLINE_KERNEL,
+ default_zone);
+ print_allowed_zone(buf, nid, start_pfn, nr_pages, MMOP_ONLINE_MOVABLE,
+ default_zone);
+out:
strcat(buf, "\n");
return strlen(buf);
@@ -685,14 +703,6 @@ static int add_memory_block(int base_section_nr)
return 0;
}
-static bool is_zone_device_section(struct mem_section *ms)
-{
- struct page *page;
-
- page = sparse_decode_mem_map(ms->section_mem_map, __section_nr(ms));
- return is_zone_device_page(page);
-}
-
/*
* need an interface for the VM to add new memory regions,
* but without onlining it.
@@ -702,9 +712,6 @@ int register_new_memory(int nid, struct mem_section *section)
int ret = 0;
struct memory_block *mem;
- if (is_zone_device_section(section))
- return 0;
-
mutex_lock(&mem_sysfs_mutex);
mem = find_memory_block(section);
@@ -741,11 +748,16 @@ static int remove_memory_section(unsigned long node_id,
{
struct memory_block *mem;
- if (is_zone_device_section(section))
- return 0;
-
mutex_lock(&mem_sysfs_mutex);
+
+ /*
+ * Some users of the memory hotplug do not want/need memblock to
+ * track all sections. Skip over those.
+ */
mem = find_memory_block(section);
+ if (!mem)
+ goto out_unlock;
+
unregister_mem_sect_under_nodes(mem, __section_nr(section));
mem->section_count--;
@@ -754,6 +766,7 @@ static int remove_memory_section(unsigned long node_id,
else
put_device(&mem->dev);
+out_unlock:
mutex_unlock(&mem_sysfs_mutex);
return 0;
}
@@ -820,6 +833,10 @@ int __init memory_dev_init(void)
*/
mutex_lock(&mem_sysfs_mutex);
for (i = 0; i < NR_MEM_SECTIONS; i += sections_per_block) {
+ /* Don't iterate over sections we know are !present: */
+ if (i > __highest_present_section_nr)
+ break;
+
err = add_memory_block(i);
if (!ret)
ret = err;
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 5548f9686016..aae2402f3791 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -27,13 +27,21 @@ static struct bus_type node_subsys = {
static ssize_t node_read_cpumap(struct device *dev, bool list, char *buf)
{
+ ssize_t n;
+ cpumask_var_t mask;
struct node *node_dev = to_node(dev);
- const struct cpumask *mask = cpumask_of_node(node_dev->dev.id);
/* 2008/04/07: buf currently PAGE_SIZE, need 9 chars per 32 bits. */
BUILD_BUG_ON((NR_CPUS/32 * 9) > (PAGE_SIZE-1));
- return cpumap_print_to_pagebuf(list, buf, mask);
+ if (!alloc_cpumask_var(&mask, GFP_KERNEL))
+ return 0;
+
+ cpumask_and(mask, cpumask_of_node(node_dev->dev.id), cpu_online_mask);
+ n = cpumap_print_to_pagebuf(list, buf, mask);
+ free_cpumask_var(mask);
+
+ return n;
}
static inline ssize_t node_read_cpumask(struct device *dev,
@@ -129,11 +137,11 @@ static ssize_t node_read_meminfo(struct device *dev,
nid, K(node_page_state(pgdat, NR_UNSTABLE_NFS)),
nid, K(sum_zone_node_page_state(nid, NR_BOUNCE)),
nid, K(node_page_state(pgdat, NR_WRITEBACK_TEMP)),
- nid, K(sum_zone_node_page_state(nid, NR_SLAB_RECLAIMABLE) +
- sum_zone_node_page_state(nid, NR_SLAB_UNRECLAIMABLE)),
- nid, K(sum_zone_node_page_state(nid, NR_SLAB_RECLAIMABLE)),
+ nid, K(node_page_state(pgdat, NR_SLAB_RECLAIMABLE) +
+ node_page_state(pgdat, NR_SLAB_UNRECLAIMABLE)),
+ nid, K(node_page_state(pgdat, NR_SLAB_RECLAIMABLE)),
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
- nid, K(sum_zone_node_page_state(nid, NR_SLAB_UNRECLAIMABLE)),
+ nid, K(node_page_state(pgdat, NR_SLAB_UNRECLAIMABLE)),
nid, K(node_page_state(pgdat, NR_ANON_THPS) *
HPAGE_PMD_NR),
nid, K(node_page_state(pgdat, NR_SHMEM_THPS) *
@@ -141,7 +149,7 @@ static ssize_t node_read_meminfo(struct device *dev,
nid, K(node_page_state(pgdat, NR_SHMEM_PMDMAPPED) *
HPAGE_PMD_NR));
#else
- nid, K(sum_zone_node_page_state(nid, NR_SLAB_UNRECLAIMABLE)));
+ nid, K(node_page_state(pgdat, NR_SLAB_UNRECLAIMABLE)));
#endif
n += hugetlb_report_node_meminfo(nid, buf + n);
return n;
@@ -160,12 +168,12 @@ static ssize_t node_read_numastat(struct device *dev,
"interleave_hit %lu\n"
"local_node %lu\n"
"other_node %lu\n",
- sum_zone_node_page_state(dev->id, NUMA_HIT),
- sum_zone_node_page_state(dev->id, NUMA_MISS),
- sum_zone_node_page_state(dev->id, NUMA_FOREIGN),
- sum_zone_node_page_state(dev->id, NUMA_INTERLEAVE_HIT),
- sum_zone_node_page_state(dev->id, NUMA_LOCAL),
- sum_zone_node_page_state(dev->id, NUMA_OTHER));
+ sum_zone_numa_state(dev->id, NUMA_HIT),
+ sum_zone_numa_state(dev->id, NUMA_MISS),
+ sum_zone_numa_state(dev->id, NUMA_FOREIGN),
+ sum_zone_numa_state(dev->id, NUMA_INTERLEAVE_HIT),
+ sum_zone_numa_state(dev->id, NUMA_LOCAL),
+ sum_zone_numa_state(dev->id, NUMA_OTHER));
}
static DEVICE_ATTR(numastat, S_IRUGO, node_read_numastat, NULL);
@@ -181,9 +189,17 @@ static ssize_t node_read_vmstat(struct device *dev,
n += sprintf(buf+n, "%s %lu\n", vmstat_text[i],
sum_zone_node_page_state(nid, i));
- for (i = 0; i < NR_VM_NODE_STAT_ITEMS; i++)
+#ifdef CONFIG_NUMA
+ for (i = 0; i < NR_VM_NUMA_STAT_ITEMS; i++)
n += sprintf(buf+n, "%s %lu\n",
vmstat_text[i + NR_VM_ZONE_STAT_ITEMS],
+ sum_zone_numa_state(nid, i));
+#endif
+
+ for (i = 0; i < NR_VM_NODE_STAT_ITEMS; i++)
+ n += sprintf(buf+n, "%s %lu\n",
+ vmstat_text[i + NR_VM_ZONE_STAT_ITEMS +
+ NR_VM_NUMA_STAT_ITEMS],
node_page_state(pgdat, i));
return n;
@@ -288,7 +304,7 @@ static void node_device_release(struct device *dev)
*
* Initialize and register the node device.
*/
-static int register_node(struct node *node, int num, struct node *parent)
+static int register_node(struct node *node, int num)
{
int error;
@@ -368,21 +384,14 @@ int unregister_cpu_under_node(unsigned int cpu, unsigned int nid)
}
#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
-#define page_initialized(page) (page->lru.next)
-
static int __ref get_nid_for_pfn(unsigned long pfn)
{
- struct page *page;
-
if (!pfn_valid_within(pfn))
return -1;
#ifdef CONFIG_DEFERRED_STRUCT_PAGE_INIT
- if (system_state == SYSTEM_BOOTING)
+ if (system_state < SYSTEM_RUNNING)
return early_pfn_to_nid(pfn);
#endif
- page = pfn_to_page(pfn);
- if (!page_initialized(page))
- return -1;
return pfn_to_nid(pfn);
}
@@ -468,10 +477,9 @@ int unregister_mem_sect_under_nodes(struct memory_block *mem_blk,
return 0;
}
-static int link_mem_sections(int nid)
+int link_mem_sections(int nid, unsigned long start_pfn, unsigned long nr_pages)
{
- unsigned long start_pfn = NODE_DATA(nid)->node_start_pfn;
- unsigned long end_pfn = start_pfn + NODE_DATA(nid)->node_spanned_pages;
+ unsigned long end_pfn = start_pfn + nr_pages;
unsigned long pfn;
struct memory_block *mem_blk = NULL;
int err = 0;
@@ -559,10 +567,7 @@ static int node_memory_callback(struct notifier_block *self,
return NOTIFY_OK;
}
#endif /* CONFIG_HUGETLBFS */
-#else /* !CONFIG_MEMORY_HOTPLUG_SPARSE */
-
-static int link_mem_sections(int nid) { return 0; }
-#endif /* CONFIG_MEMORY_HOTPLUG_SPARSE */
+#endif /* CONFIG_MEMORY_HOTPLUG_SPARSE */
#if !defined(CONFIG_MEMORY_HOTPLUG_SPARSE) || \
!defined(CONFIG_HUGETLBFS)
@@ -576,39 +581,27 @@ static void init_node_hugetlb_work(int nid) { }
#endif
-int register_one_node(int nid)
+int __register_one_node(int nid)
{
- int error = 0;
+ int error;
int cpu;
- if (node_online(nid)) {
- int p_node = parent_node(nid);
- struct node *parent = NULL;
-
- if (p_node != nid)
- parent = node_devices[p_node];
-
- node_devices[nid] = kzalloc(sizeof(struct node), GFP_KERNEL);
- if (!node_devices[nid])
- return -ENOMEM;
-
- error = register_node(node_devices[nid], nid, parent);
-
- /* link cpu under this node */
- for_each_present_cpu(cpu) {
- if (cpu_to_node(cpu) == nid)
- register_cpu_under_node(cpu, nid);
- }
+ node_devices[nid] = kzalloc(sizeof(struct node), GFP_KERNEL);
+ if (!node_devices[nid])
+ return -ENOMEM;
- /* link memory sections under this node */
- error = link_mem_sections(nid);
+ error = register_node(node_devices[nid], nid);
- /* initialize work queue for memory hot plug */
- init_node_hugetlb_work(nid);
+ /* link cpu under this node */
+ for_each_present_cpu(cpu) {
+ if (cpu_to_node(cpu) == nid)
+ register_cpu_under_node(cpu, nid);
}
- return error;
+ /* initialize work queue for memory hot plug */
+ init_node_hugetlb_work(nid);
+ return error;
}
void unregister_one_node(int nid)
@@ -657,9 +650,7 @@ static struct node_attr node_state_attr[] = {
#ifdef CONFIG_HIGHMEM
[N_HIGH_MEMORY] = _NODE_ATTR(has_high_memory, N_HIGH_MEMORY),
#endif
-#ifdef CONFIG_MOVABLE_NODE
[N_MEMORY] = _NODE_ATTR(has_memory, N_MEMORY),
-#endif
[N_CPU] = _NODE_ATTR(has_cpu, N_CPU),
};
@@ -670,9 +661,7 @@ static struct attribute *node_state_attrs[] = {
#ifdef CONFIG_HIGHMEM
&node_state_attr[N_HIGH_MEMORY].attr.attr,
#endif
-#ifdef CONFIG_MOVABLE_NODE
&node_state_attr[N_MEMORY].attr.attr,
-#endif
&node_state_attr[N_CPU].attr.attr,
NULL
};
diff --git a/drivers/base/pinctrl.c b/drivers/base/pinctrl.c
index 5917b4b5fb99..eb929dd6ef1e 100644
--- a/drivers/base/pinctrl.c
+++ b/drivers/base/pinctrl.c
@@ -23,6 +23,9 @@ int pinctrl_bind_pins(struct device *dev)
{
int ret;
+ if (dev->of_node_reused)
+ return 0;
+
dev->pins = devm_kzalloc(dev, sizeof(*(dev->pins)), GFP_KERNEL);
if (!dev->pins)
return -ENOMEM;
diff --git a/drivers/base/platform-msi.c b/drivers/base/platform-msi.c
index d35e9a20caf7..e5473525e7b2 100644
--- a/drivers/base/platform-msi.c
+++ b/drivers/base/platform-msi.c
@@ -195,7 +195,7 @@ struct irq_domain *platform_msi_create_irq_domain(struct fwnode_handle *fwnode,
domain = msi_create_irq_domain(fwnode, info, parent);
if (domain)
- domain->bus_token = DOMAIN_BUS_PLATFORM_MSI;
+ irq_domain_update_bus_token(domain, DOMAIN_BUS_PLATFORM_MSI);
return domain;
}
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index a102152301c8..9045c5f3734e 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -344,7 +344,7 @@ EXPORT_SYMBOL_GPL(platform_device_add_data);
* platform device is released.
*/
int platform_device_add_properties(struct platform_device *pdev,
- struct property_entry *properties)
+ const struct property_entry *properties)
{
return device_add_properties(&pdev->dev, properties);
}
@@ -866,9 +866,10 @@ static ssize_t driver_override_store(struct device *dev,
const char *buf, size_t count)
{
struct platform_device *pdev = to_platform_device(dev);
- char *driver_override, *old = pdev->driver_override, *cp;
+ char *driver_override, *old, *cp;
- if (count > PATH_MAX)
+ /* We need to keep extra room for a newline */
+ if (count >= (PAGE_SIZE - 1))
return -EINVAL;
driver_override = kstrndup(buf, count, GFP_KERNEL);
@@ -879,12 +880,15 @@ static ssize_t driver_override_store(struct device *dev,
if (cp)
*cp = '\0';
+ device_lock(dev);
+ old = pdev->driver_override;
if (strlen(driver_override)) {
pdev->driver_override = driver_override;
} else {
kfree(driver_override);
pdev->driver_override = NULL;
}
+ device_unlock(dev);
kfree(old);
@@ -895,8 +899,12 @@ static ssize_t driver_override_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct platform_device *pdev = to_platform_device(dev);
+ ssize_t len;
- return sprintf(buf, "%s\n", pdev->driver_override);
+ device_lock(dev);
+ len = sprintf(buf, "%s\n", pdev->driver_override);
+ device_unlock(dev);
+ return len;
}
static DEVICE_ATTR_RW(driver_override);
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index da49a8383dc3..e8ca5e2cf1e5 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -126,7 +126,7 @@ static const struct genpd_lock_ops genpd_spin_ops = {
#define genpd_is_always_on(genpd) (genpd->flags & GENPD_FLAG_ALWAYS_ON)
static inline bool irq_safe_dev_in_no_sleep_domain(struct device *dev,
- struct generic_pm_domain *genpd)
+ const struct generic_pm_domain *genpd)
{
bool ret;
@@ -181,12 +181,14 @@ static struct generic_pm_domain *dev_to_genpd(struct device *dev)
return pd_to_genpd(dev->pm_domain);
}
-static int genpd_stop_dev(struct generic_pm_domain *genpd, struct device *dev)
+static int genpd_stop_dev(const struct generic_pm_domain *genpd,
+ struct device *dev)
{
return GENPD_DEV_CALLBACK(genpd, int, stop, dev);
}
-static int genpd_start_dev(struct generic_pm_domain *genpd, struct device *dev)
+static int genpd_start_dev(const struct generic_pm_domain *genpd,
+ struct device *dev)
{
return GENPD_DEV_CALLBACK(genpd, int, start, dev);
}
@@ -207,6 +209,34 @@ static void genpd_sd_counter_inc(struct generic_pm_domain *genpd)
smp_mb__after_atomic();
}
+#ifdef CONFIG_DEBUG_FS
+static void genpd_update_accounting(struct generic_pm_domain *genpd)
+{
+ ktime_t delta, now;
+
+ now = ktime_get();
+ delta = ktime_sub(now, genpd->accounting_time);
+
+ /*
+ * If genpd->status is active, it means we are just
+ * out of off and so update the idle time and vice
+ * versa.
+ */
+ if (genpd->status == GPD_STATE_ACTIVE) {
+ int state_idx = genpd->state_idx;
+
+ genpd->states[state_idx].idle_time =
+ ktime_add(genpd->states[state_idx].idle_time, delta);
+ } else {
+ genpd->on_time = ktime_add(genpd->on_time, delta);
+ }
+
+ genpd->accounting_time = now;
+}
+#else
+static inline void genpd_update_accounting(struct generic_pm_domain *genpd) {}
+#endif
+
static int _genpd_power_on(struct generic_pm_domain *genpd, bool timed)
{
unsigned int state_idx = genpd->state_idx;
@@ -359,6 +389,7 @@ static int genpd_power_off(struct generic_pm_domain *genpd, bool one_dev_on,
}
genpd->status = GPD_STATE_POWER_OFF;
+ genpd_update_accounting(genpd);
list_for_each_entry(link, &genpd->slave_links, slave_node) {
genpd_sd_counter_dec(link->master);
@@ -411,6 +442,8 @@ static int genpd_power_on(struct generic_pm_domain *genpd, unsigned int depth)
goto err;
genpd->status = GPD_STATE_ACTIVE;
+ genpd_update_accounting(genpd);
+
return 0;
err:
@@ -443,7 +476,7 @@ static int genpd_dev_pm_qos_notifier(struct notifier_block *nb,
pdd = dev->power.subsys_data ?
dev->power.subsys_data->domain_data : NULL;
- if (pdd && pdd->dev) {
+ if (pdd) {
to_gpd_data(pdd)->td.constraint_changed = true;
genpd = dev_to_genpd(dev);
} else {
@@ -738,7 +771,7 @@ static bool pm_genpd_present(const struct generic_pm_domain *genpd)
#ifdef CONFIG_PM_SLEEP
-static bool genpd_dev_active_wakeup(struct generic_pm_domain *genpd,
+static bool genpd_dev_active_wakeup(const struct generic_pm_domain *genpd,
struct device *dev)
{
return GENPD_DEV_CALLBACK(genpd, bool, active_wakeup, dev);
@@ -840,7 +873,8 @@ static void genpd_sync_power_on(struct generic_pm_domain *genpd, bool use_lock,
* signal remote wakeup from the system's working state as needed by runtime PM.
* Return 'true' in either of the above cases.
*/
-static bool resume_needed(struct device *dev, struct generic_pm_domain *genpd)
+static bool resume_needed(struct device *dev,
+ const struct generic_pm_domain *genpd)
{
bool active_wakeup;
@@ -899,19 +933,19 @@ static int pm_genpd_prepare(struct device *dev)
}
/**
- * pm_genpd_suspend_noirq - Completion of suspend of device in an I/O PM domain.
+ * genpd_finish_suspend - Completion of suspend or hibernation of device in an
+ * I/O pm domain.
* @dev: Device to suspend.
+ * @poweroff: Specifies if this is a poweroff_noirq or suspend_noirq callback.
*
* Stop the device and remove power from the domain if all devices in it have
* been stopped.
*/
-static int pm_genpd_suspend_noirq(struct device *dev)
+static int genpd_finish_suspend(struct device *dev, bool poweroff)
{
struct generic_pm_domain *genpd;
int ret;
- dev_dbg(dev, "%s()\n", __func__);
-
genpd = dev_to_genpd(dev);
if (IS_ERR(genpd))
return -EINVAL;
@@ -919,6 +953,13 @@ static int pm_genpd_suspend_noirq(struct device *dev)
if (dev->power.wakeup_path && genpd_dev_active_wakeup(genpd, dev))
return 0;
+ if (poweroff)
+ ret = pm_generic_poweroff_noirq(dev);
+ else
+ ret = pm_generic_suspend_noirq(dev);
+ if (ret)
+ return ret;
+
if (genpd->dev_ops.stop && genpd->dev_ops.start) {
ret = pm_runtime_force_suspend(dev);
if (ret)
@@ -934,6 +975,20 @@ static int pm_genpd_suspend_noirq(struct device *dev)
}
/**
+ * pm_genpd_suspend_noirq - Completion of suspend of device in an I/O PM domain.
+ * @dev: Device to suspend.
+ *
+ * Stop the device and remove power from the domain if all devices in it have
+ * been stopped.
+ */
+static int pm_genpd_suspend_noirq(struct device *dev)
+{
+ dev_dbg(dev, "%s()\n", __func__);
+
+ return genpd_finish_suspend(dev, false);
+}
+
+/**
* pm_genpd_resume_noirq - Start of resume of device in an I/O PM domain.
* @dev: Device to resume.
*
@@ -961,6 +1016,10 @@ static int pm_genpd_resume_noirq(struct device *dev)
if (genpd->dev_ops.stop && genpd->dev_ops.start)
ret = pm_runtime_force_resume(dev);
+ ret = pm_generic_resume_noirq(dev);
+ if (ret)
+ return ret;
+
return ret;
}
@@ -975,7 +1034,7 @@ static int pm_genpd_resume_noirq(struct device *dev)
*/
static int pm_genpd_freeze_noirq(struct device *dev)
{
- struct generic_pm_domain *genpd;
+ const struct generic_pm_domain *genpd;
int ret = 0;
dev_dbg(dev, "%s()\n", __func__);
@@ -984,6 +1043,10 @@ static int pm_genpd_freeze_noirq(struct device *dev)
if (IS_ERR(genpd))
return -EINVAL;
+ ret = pm_generic_freeze_noirq(dev);
+ if (ret)
+ return ret;
+
if (genpd->dev_ops.stop && genpd->dev_ops.start)
ret = pm_runtime_force_suspend(dev);
@@ -999,7 +1062,7 @@ static int pm_genpd_freeze_noirq(struct device *dev)
*/
static int pm_genpd_thaw_noirq(struct device *dev)
{
- struct generic_pm_domain *genpd;
+ const struct generic_pm_domain *genpd;
int ret = 0;
dev_dbg(dev, "%s()\n", __func__);
@@ -1008,10 +1071,28 @@ static int pm_genpd_thaw_noirq(struct device *dev)
if (IS_ERR(genpd))
return -EINVAL;
- if (genpd->dev_ops.stop && genpd->dev_ops.start)
+ if (genpd->dev_ops.stop && genpd->dev_ops.start) {
ret = pm_runtime_force_resume(dev);
+ if (ret)
+ return ret;
+ }
- return ret;
+ return pm_generic_thaw_noirq(dev);
+}
+
+/**
+ * pm_genpd_poweroff_noirq - Completion of hibernation of device in an
+ * I/O PM domain.
+ * @dev: Device to poweroff.
+ *
+ * Stop the device and remove power from the domain if all devices in it have
+ * been stopped.
+ */
+static int pm_genpd_poweroff_noirq(struct device *dev)
+{
+ dev_dbg(dev, "%s()\n", __func__);
+
+ return genpd_finish_suspend(dev, true);
}
/**
@@ -1048,10 +1129,13 @@ static int pm_genpd_restore_noirq(struct device *dev)
genpd_sync_power_on(genpd, true, 0);
genpd_unlock(genpd);
- if (genpd->dev_ops.stop && genpd->dev_ops.start)
+ if (genpd->dev_ops.stop && genpd->dev_ops.start) {
ret = pm_runtime_force_resume(dev);
+ if (ret)
+ return ret;
+ }
- return ret;
+ return pm_generic_restore_noirq(dev);
}
/**
@@ -1127,6 +1211,7 @@ EXPORT_SYMBOL_GPL(pm_genpd_syscore_poweron);
#define pm_genpd_resume_noirq NULL
#define pm_genpd_freeze_noirq NULL
#define pm_genpd_thaw_noirq NULL
+#define pm_genpd_poweroff_noirq NULL
#define pm_genpd_restore_noirq NULL
#define pm_genpd_complete NULL
@@ -1168,8 +1253,6 @@ static struct generic_pm_domain_data *genpd_alloc_dev_data(struct device *dev,
spin_unlock_irq(&dev->power.lock);
- dev_pm_domain_set(dev, &genpd->domain);
-
return gpd_data;
err_free:
@@ -1183,8 +1266,6 @@ static struct generic_pm_domain_data *genpd_alloc_dev_data(struct device *dev,
static void genpd_free_dev_data(struct device *dev,
struct generic_pm_domain_data *gpd_data)
{
- dev_pm_domain_set(dev, NULL);
-
spin_lock_irq(&dev->power.lock);
dev->power.subsys_data->domain_data = NULL;
@@ -1221,6 +1302,8 @@ static int genpd_add_device(struct generic_pm_domain *genpd, struct device *dev,
if (ret)
goto out;
+ dev_pm_domain_set(dev, &genpd->domain);
+
genpd->device_count++;
genpd->max_off_time_changed = true;
@@ -1282,6 +1365,8 @@ static int genpd_remove_device(struct generic_pm_domain *genpd,
if (genpd->detach_dev)
genpd->detach_dev(genpd, dev);
+ dev_pm_domain_set(dev, NULL);
+
list_del_init(&pdd->list_node);
genpd_unlock(genpd);
@@ -1393,7 +1478,7 @@ EXPORT_SYMBOL_GPL(pm_genpd_add_subdomain);
int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
struct generic_pm_domain *subdomain)
{
- struct gpd_link *link;
+ struct gpd_link *l, *link;
int ret = -EINVAL;
if (IS_ERR_OR_NULL(genpd) || IS_ERR_OR_NULL(subdomain))
@@ -1409,7 +1494,7 @@ int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
goto out;
}
- list_for_each_entry(link, &genpd->master_links, master_node) {
+ list_for_each_entry_safe(link, l, &genpd->master_links, master_node) {
if (link->slave != subdomain)
continue;
@@ -1486,6 +1571,7 @@ int pm_genpd_init(struct generic_pm_domain *genpd,
genpd->max_off_time_changed = true;
genpd->provider = NULL;
genpd->has_provider = false;
+ genpd->accounting_time = ktime_get();
genpd->domain.ops.runtime_suspend = genpd_runtime_suspend;
genpd->domain.ops.runtime_resume = genpd_runtime_resume;
genpd->domain.ops.prepare = pm_genpd_prepare;
@@ -1493,7 +1579,7 @@ int pm_genpd_init(struct generic_pm_domain *genpd,
genpd->domain.ops.resume_noirq = pm_genpd_resume_noirq;
genpd->domain.ops.freeze_noirq = pm_genpd_freeze_noirq;
genpd->domain.ops.thaw_noirq = pm_genpd_thaw_noirq;
- genpd->domain.ops.poweroff_noirq = pm_genpd_suspend_noirq;
+ genpd->domain.ops.poweroff_noirq = pm_genpd_poweroff_noirq;
genpd->domain.ops.restore_noirq = pm_genpd_restore_noirq;
genpd->domain.ops.complete = pm_genpd_complete;
@@ -1584,9 +1670,6 @@ EXPORT_SYMBOL_GPL(pm_genpd_remove);
#ifdef CONFIG_PM_GENERIC_DOMAINS_OF
-typedef struct generic_pm_domain *(*genpd_xlate_t)(struct of_phandle_args *args,
- void *data);
-
/*
* Device Tree based PM domain providers.
*
@@ -1692,7 +1775,7 @@ static int genpd_add_provider(struct device_node *np, genpd_xlate_t xlate,
mutex_lock(&of_genpd_mutex);
list_add(&cp->link, &of_genpd_providers);
mutex_unlock(&of_genpd_mutex);
- pr_debug("Added domain provider from %s\n", np->full_name);
+ pr_debug("Added domain provider from %pOF\n", np);
return 0;
}
@@ -1742,6 +1825,9 @@ int of_genpd_add_provider_onecell(struct device_node *np,
mutex_lock(&gpd_list_lock);
+ if (!data->xlate)
+ data->xlate = genpd_xlate_onecell;
+
for (i = 0; i < data->num_domains; i++) {
if (!data->domains[i])
continue;
@@ -1752,7 +1838,7 @@ int of_genpd_add_provider_onecell(struct device_node *np,
data->domains[i]->has_provider = true;
}
- ret = genpd_add_provider(np, genpd_xlate_onecell, data);
+ ret = genpd_add_provider(np, data->xlate, data);
if (ret < 0)
goto error;
@@ -1780,12 +1866,12 @@ EXPORT_SYMBOL_GPL(of_genpd_add_provider_onecell);
*/
void of_genpd_del_provider(struct device_node *np)
{
- struct of_genpd_provider *cp;
+ struct of_genpd_provider *cp, *tmp;
struct generic_pm_domain *gpd;
mutex_lock(&gpd_list_lock);
mutex_lock(&of_genpd_mutex);
- list_for_each_entry(cp, &of_genpd_providers, link) {
+ list_for_each_entry_safe(cp, tmp, &of_genpd_providers, link) {
if (cp->node == np) {
/*
* For each PM domain associated with the
@@ -1925,14 +2011,14 @@ EXPORT_SYMBOL_GPL(of_genpd_add_subdomain);
*/
struct generic_pm_domain *of_genpd_remove_last(struct device_node *np)
{
- struct generic_pm_domain *gpd, *genpd = ERR_PTR(-ENOENT);
+ struct generic_pm_domain *gpd, *tmp, *genpd = ERR_PTR(-ENOENT);
int ret;
if (IS_ERR_OR_NULL(np))
return ERR_PTR(-EINVAL);
mutex_lock(&gpd_list_lock);
- list_for_each_entry(gpd, &gpd_list, gpd_list_node) {
+ list_for_each_entry_safe(gpd, tmp, &gpd_list, gpd_list_node) {
if (gpd->provider == &np->fwnode) {
ret = genpd_remove(gpd);
genpd = ret ? ERR_PTR(ret) : gpd;
@@ -2095,16 +2181,16 @@ static int genpd_parse_state(struct genpd_power_state *genpd_state,
err = of_property_read_u32(state_node, "entry-latency-us",
&entry_latency);
if (err) {
- pr_debug(" * %s missing entry-latency-us property\n",
- state_node->full_name);
+ pr_debug(" * %pOF missing entry-latency-us property\n",
+ state_node);
return -EINVAL;
}
err = of_property_read_u32(state_node, "exit-latency-us",
&exit_latency);
if (err) {
- pr_debug(" * %s missing exit-latency-us property\n",
- state_node->full_name);
+ pr_debug(" * %pOF missing exit-latency-us property\n",
+ state_node);
return -EINVAL;
}
@@ -2158,8 +2244,8 @@ int of_genpd_parse_idle_states(struct device_node *dn,
ret = genpd_parse_state(&st[i++], np);
if (ret) {
pr_err
- ("Parsing idle state node %s failed with err %d\n",
- np->full_name, ret);
+ ("Parsing idle state node %pOF failed with err %d\n",
+ np, ret);
of_node_put(np);
kfree(st);
return ret;
@@ -2273,7 +2359,7 @@ exit:
return 0;
}
-static int pm_genpd_summary_show(struct seq_file *s, void *data)
+static int genpd_summary_show(struct seq_file *s, void *data)
{
struct generic_pm_domain *genpd;
int ret = 0;
@@ -2296,21 +2382,187 @@ static int pm_genpd_summary_show(struct seq_file *s, void *data)
return ret;
}
-static int pm_genpd_summary_open(struct inode *inode, struct file *file)
+static int genpd_status_show(struct seq_file *s, void *data)
+{
+ static const char * const status_lookup[] = {
+ [GPD_STATE_ACTIVE] = "on",
+ [GPD_STATE_POWER_OFF] = "off"
+ };
+
+ struct generic_pm_domain *genpd = s->private;
+ int ret = 0;
+
+ ret = genpd_lock_interruptible(genpd);
+ if (ret)
+ return -ERESTARTSYS;
+
+ if (WARN_ON_ONCE(genpd->status >= ARRAY_SIZE(status_lookup)))
+ goto exit;
+
+ if (genpd->status == GPD_STATE_POWER_OFF)
+ seq_printf(s, "%s-%u\n", status_lookup[genpd->status],
+ genpd->state_idx);
+ else
+ seq_printf(s, "%s\n", status_lookup[genpd->status]);
+exit:
+ genpd_unlock(genpd);
+ return ret;
+}
+
+static int genpd_sub_domains_show(struct seq_file *s, void *data)
{
- return single_open(file, pm_genpd_summary_show, NULL);
+ struct generic_pm_domain *genpd = s->private;
+ struct gpd_link *link;
+ int ret = 0;
+
+ ret = genpd_lock_interruptible(genpd);
+ if (ret)
+ return -ERESTARTSYS;
+
+ list_for_each_entry(link, &genpd->master_links, master_node)
+ seq_printf(s, "%s\n", link->slave->name);
+
+ genpd_unlock(genpd);
+ return ret;
}
-static const struct file_operations pm_genpd_summary_fops = {
- .open = pm_genpd_summary_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
+static int genpd_idle_states_show(struct seq_file *s, void *data)
+{
+ struct generic_pm_domain *genpd = s->private;
+ unsigned int i;
+ int ret = 0;
+
+ ret = genpd_lock_interruptible(genpd);
+ if (ret)
+ return -ERESTARTSYS;
+
+ seq_puts(s, "State Time Spent(ms)\n");
+
+ for (i = 0; i < genpd->state_count; i++) {
+ ktime_t delta = 0;
+ s64 msecs;
+
+ if ((genpd->status == GPD_STATE_POWER_OFF) &&
+ (genpd->state_idx == i))
+ delta = ktime_sub(ktime_get(), genpd->accounting_time);
+
+ msecs = ktime_to_ms(
+ ktime_add(genpd->states[i].idle_time, delta));
+ seq_printf(s, "S%-13i %lld\n", i, msecs);
+ }
+
+ genpd_unlock(genpd);
+ return ret;
+}
+
+static int genpd_active_time_show(struct seq_file *s, void *data)
+{
+ struct generic_pm_domain *genpd = s->private;
+ ktime_t delta = 0;
+ int ret = 0;
+
+ ret = genpd_lock_interruptible(genpd);
+ if (ret)
+ return -ERESTARTSYS;
+
+ if (genpd->status == GPD_STATE_ACTIVE)
+ delta = ktime_sub(ktime_get(), genpd->accounting_time);
+
+ seq_printf(s, "%lld ms\n", ktime_to_ms(
+ ktime_add(genpd->on_time, delta)));
+
+ genpd_unlock(genpd);
+ return ret;
+}
+
+static int genpd_total_idle_time_show(struct seq_file *s, void *data)
+{
+ struct generic_pm_domain *genpd = s->private;
+ ktime_t delta = 0, total = 0;
+ unsigned int i;
+ int ret = 0;
+
+ ret = genpd_lock_interruptible(genpd);
+ if (ret)
+ return -ERESTARTSYS;
+
+ for (i = 0; i < genpd->state_count; i++) {
+
+ if ((genpd->status == GPD_STATE_POWER_OFF) &&
+ (genpd->state_idx == i))
+ delta = ktime_sub(ktime_get(), genpd->accounting_time);
+
+ total = ktime_add(total, genpd->states[i].idle_time);
+ }
+ total = ktime_add(total, delta);
+
+ seq_printf(s, "%lld ms\n", ktime_to_ms(total));
+
+ genpd_unlock(genpd);
+ return ret;
+}
+
+
+static int genpd_devices_show(struct seq_file *s, void *data)
+{
+ struct generic_pm_domain *genpd = s->private;
+ struct pm_domain_data *pm_data;
+ const char *kobj_path;
+ int ret = 0;
+
+ ret = genpd_lock_interruptible(genpd);
+ if (ret)
+ return -ERESTARTSYS;
+
+ list_for_each_entry(pm_data, &genpd->dev_list, list_node) {
+ kobj_path = kobject_get_path(&pm_data->dev->kobj,
+ genpd_is_irq_safe(genpd) ?
+ GFP_ATOMIC : GFP_KERNEL);
+ if (kobj_path == NULL)
+ continue;
+
+ seq_printf(s, "%s\n", kobj_path);
+ kfree(kobj_path);
+ }
+
+ genpd_unlock(genpd);
+ return ret;
+}
+
+#define define_genpd_open_function(name) \
+static int genpd_##name##_open(struct inode *inode, struct file *file) \
+{ \
+ return single_open(file, genpd_##name##_show, inode->i_private); \
+}
+
+define_genpd_open_function(summary);
+define_genpd_open_function(status);
+define_genpd_open_function(sub_domains);
+define_genpd_open_function(idle_states);
+define_genpd_open_function(active_time);
+define_genpd_open_function(total_idle_time);
+define_genpd_open_function(devices);
+
+#define define_genpd_debugfs_fops(name) \
+static const struct file_operations genpd_##name##_fops = { \
+ .open = genpd_##name##_open, \
+ .read = seq_read, \
+ .llseek = seq_lseek, \
+ .release = single_release, \
+}
+
+define_genpd_debugfs_fops(summary);
+define_genpd_debugfs_fops(status);
+define_genpd_debugfs_fops(sub_domains);
+define_genpd_debugfs_fops(idle_states);
+define_genpd_debugfs_fops(active_time);
+define_genpd_debugfs_fops(total_idle_time);
+define_genpd_debugfs_fops(devices);
static int __init pm_genpd_debug_init(void)
{
struct dentry *d;
+ struct generic_pm_domain *genpd;
pm_genpd_debugfs_dir = debugfs_create_dir("pm_genpd", NULL);
@@ -2318,10 +2570,29 @@ static int __init pm_genpd_debug_init(void)
return -ENOMEM;
d = debugfs_create_file("pm_genpd_summary", S_IRUGO,
- pm_genpd_debugfs_dir, NULL, &pm_genpd_summary_fops);
+ pm_genpd_debugfs_dir, NULL, &genpd_summary_fops);
if (!d)
return -ENOMEM;
+ list_for_each_entry(genpd, &gpd_list, gpd_list_node) {
+ d = debugfs_create_dir(genpd->name, pm_genpd_debugfs_dir);
+ if (!d)
+ return -ENOMEM;
+
+ debugfs_create_file("current_state", 0444,
+ d, genpd, &genpd_status_fops);
+ debugfs_create_file("sub_domains", 0444,
+ d, genpd, &genpd_sub_domains_fops);
+ debugfs_create_file("idle_states", 0444,
+ d, genpd, &genpd_idle_states_fops);
+ debugfs_create_file("active_time", 0444,
+ d, genpd, &genpd_active_time_fops);
+ debugfs_create_file("total_idle_time", 0444,
+ d, genpd, &genpd_total_idle_time_fops);
+ debugfs_create_file("devices", 0444,
+ d, genpd, &genpd_devices_fops);
+ }
+
return 0;
}
late_initcall(pm_genpd_debug_init);
diff --git a/drivers/base/power/domain_governor.c b/drivers/base/power/domain_governor.c
index 2e0fce711135..281f949c5ffe 100644
--- a/drivers/base/power/domain_governor.c
+++ b/drivers/base/power/domain_governor.c
@@ -92,12 +92,6 @@ static bool default_suspend_ok(struct device *dev)
return td->cached_suspend_ok;
}
-/**
- * default_power_down_ok - Default generic PM domain power off governor routine.
- * @pd: PM domain to check.
- *
- * This routine must be executed under the PM domain's lock.
- */
static bool __default_power_down_ok(struct dev_pm_domain *pd,
unsigned int state)
{
@@ -187,6 +181,12 @@ static bool __default_power_down_ok(struct dev_pm_domain *pd,
return true;
}
+/**
+ * default_power_down_ok - Default generic PM domain power off governor routine.
+ * @pd: PM domain to check.
+ *
+ * This routine must be executed under the PM domain's lock.
+ */
static bool default_power_down_ok(struct dev_pm_domain *pd)
{
struct generic_pm_domain *genpd = pd_to_genpd(pd);
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 9faee1c893e5..770b1539a083 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -62,7 +62,7 @@ static pm_message_t pm_transition;
static int async_error;
-static char *pm_verb(int event)
+static const char *pm_verb(int event)
{
switch (event) {
case PM_EVENT_SUSPEND:
@@ -208,7 +208,8 @@ static ktime_t initcall_debug_start(struct device *dev)
}
static void initcall_debug_report(struct device *dev, ktime_t calltime,
- int error, pm_message_t state, char *info)
+ int error, pm_message_t state,
+ const char *info)
{
ktime_t rettime;
s64 nsecs;
@@ -403,21 +404,22 @@ static pm_callback_t pm_noirq_op(const struct dev_pm_ops *ops, pm_message_t stat
return NULL;
}
-static void pm_dev_dbg(struct device *dev, pm_message_t state, char *info)
+static void pm_dev_dbg(struct device *dev, pm_message_t state, const char *info)
{
dev_dbg(dev, "%s%s%s\n", info, pm_verb(state.event),
((state.event & PM_EVENT_SLEEP) && device_may_wakeup(dev)) ?
", may wakeup" : "");
}
-static void pm_dev_err(struct device *dev, pm_message_t state, char *info,
+static void pm_dev_err(struct device *dev, pm_message_t state, const char *info,
int error)
{
printk(KERN_ERR "PM: Device %s failed to %s%s: error %d\n",
dev_name(dev), pm_verb(state.event), info, error);
}
-static void dpm_show_time(ktime_t starttime, pm_message_t state, char *info)
+static void dpm_show_time(ktime_t starttime, pm_message_t state, int error,
+ const char *info)
{
ktime_t calltime;
u64 usecs64;
@@ -429,13 +431,15 @@ static void dpm_show_time(ktime_t starttime, pm_message_t state, char *info)
usecs = usecs64;
if (usecs == 0)
usecs = 1;
- pr_info("PM: %s%s%s of devices complete after %ld.%03ld msecs\n",
- info ?: "", info ? " " : "", pm_verb(state.event),
- usecs / USEC_PER_MSEC, usecs % USEC_PER_MSEC);
+
+ pm_pr_dbg("%s%s%s of devices %s after %ld.%03ld msecs\n",
+ info ?: "", info ? " " : "", pm_verb(state.event),
+ error ? "aborted" : "complete",
+ usecs / USEC_PER_MSEC, usecs % USEC_PER_MSEC);
}
static int dpm_run_callback(pm_callback_t cb, struct device *dev,
- pm_message_t state, char *info)
+ pm_message_t state, const char *info)
{
ktime_t calltime;
int error;
@@ -535,7 +539,7 @@ static void dpm_watchdog_clear(struct dpm_watchdog *wd)
static int device_resume_noirq(struct device *dev, pm_message_t state, bool async)
{
pm_callback_t callback = NULL;
- char *info = NULL;
+ const char *info = NULL;
int error = 0;
TRACE_DEVICE(dev);
@@ -595,14 +599,7 @@ static void async_resume_noirq(void *data, async_cookie_t cookie)
put_device(dev);
}
-/**
- * dpm_resume_noirq - Execute "noirq resume" callbacks for all devices.
- * @state: PM transition of the system being carried out.
- *
- * Call the "noirq" resume handlers for all devices in dpm_noirq_list and
- * enable device drivers to receive interrupts.
- */
-void dpm_resume_noirq(pm_message_t state)
+void dpm_noirq_resume_devices(pm_message_t state)
{
struct device *dev;
ktime_t starttime = ktime_get();
@@ -647,11 +644,28 @@ void dpm_resume_noirq(pm_message_t state)
}
mutex_unlock(&dpm_list_mtx);
async_synchronize_full();
- dpm_show_time(starttime, state, "noirq");
+ dpm_show_time(starttime, state, 0, "noirq");
+ trace_suspend_resume(TPS("dpm_resume_noirq"), state.event, false);
+}
+
+void dpm_noirq_end(void)
+{
resume_device_irqs();
device_wakeup_disarm_wake_irqs();
cpuidle_resume();
- trace_suspend_resume(TPS("dpm_resume_noirq"), state.event, false);
+}
+
+/**
+ * dpm_resume_noirq - Execute "noirq resume" callbacks for all devices.
+ * @state: PM transition of the system being carried out.
+ *
+ * Invoke the "noirq" resume callbacks for all devices in dpm_noirq_list and
+ * allow device drivers' interrupt handlers to be called.
+ */
+void dpm_resume_noirq(pm_message_t state)
+{
+ dpm_noirq_resume_devices(state);
+ dpm_noirq_end();
}
/**
@@ -665,7 +679,7 @@ void dpm_resume_noirq(pm_message_t state)
static int device_resume_early(struct device *dev, pm_message_t state, bool async)
{
pm_callback_t callback = NULL;
- char *info = NULL;
+ const char *info = NULL;
int error = 0;
TRACE_DEVICE(dev);
@@ -769,7 +783,7 @@ void dpm_resume_early(pm_message_t state)
}
mutex_unlock(&dpm_list_mtx);
async_synchronize_full();
- dpm_show_time(starttime, state, "early");
+ dpm_show_time(starttime, state, 0, "early");
trace_suspend_resume(TPS("dpm_resume_early"), state.event, false);
}
@@ -793,7 +807,7 @@ EXPORT_SYMBOL_GPL(dpm_resume_start);
static int device_resume(struct device *dev, pm_message_t state, bool async)
{
pm_callback_t callback = NULL;
- char *info = NULL;
+ const char *info = NULL;
int error = 0;
DECLARE_DPM_WATCHDOG_ON_STACK(wd);
@@ -941,7 +955,7 @@ void dpm_resume(pm_message_t state)
}
mutex_unlock(&dpm_list_mtx);
async_synchronize_full();
- dpm_show_time(starttime, state, NULL);
+ dpm_show_time(starttime, state, 0, NULL);
cpufreq_resume();
trace_suspend_resume(TPS("dpm_resume"), state.event, false);
@@ -955,7 +969,7 @@ void dpm_resume(pm_message_t state)
static void device_complete(struct device *dev, pm_message_t state)
{
void (*callback)(struct device *) = NULL;
- char *info = NULL;
+ const char *info = NULL;
if (dev->power.syscore)
return;
@@ -1080,7 +1094,7 @@ static pm_message_t resume_event(pm_message_t sleep_state)
static int __device_suspend_noirq(struct device *dev, pm_message_t state, bool async)
{
pm_callback_t callback = NULL;
- char *info = NULL;
+ const char *info = NULL;
int error = 0;
TRACE_DEVICE(dev);
@@ -1156,22 +1170,19 @@ static int device_suspend_noirq(struct device *dev)
return __device_suspend_noirq(dev, pm_transition, false);
}
-/**
- * dpm_suspend_noirq - Execute "noirq suspend" callbacks for all devices.
- * @state: PM transition of the system being carried out.
- *
- * Prevent device drivers from receiving interrupts and call the "noirq" suspend
- * handlers for all non-sysdev devices.
- */
-int dpm_suspend_noirq(pm_message_t state)
+void dpm_noirq_begin(void)
+{
+ cpuidle_pause();
+ device_wakeup_arm_wake_irqs();
+ suspend_device_irqs();
+}
+
+int dpm_noirq_suspend_devices(pm_message_t state)
{
ktime_t starttime = ktime_get();
int error = 0;
trace_suspend_resume(TPS("dpm_suspend_noirq"), state.event, true);
- cpuidle_pause();
- device_wakeup_arm_wake_irqs();
- suspend_device_irqs();
mutex_lock(&dpm_list_mtx);
pm_transition = state;
async_error = 0;
@@ -1206,15 +1217,32 @@ int dpm_suspend_noirq(pm_message_t state)
if (error) {
suspend_stats.failed_suspend_noirq++;
dpm_save_failed_step(SUSPEND_SUSPEND_NOIRQ);
- dpm_resume_noirq(resume_event(state));
- } else {
- dpm_show_time(starttime, state, "noirq");
}
+ dpm_show_time(starttime, state, error, "noirq");
trace_suspend_resume(TPS("dpm_suspend_noirq"), state.event, false);
return error;
}
/**
+ * dpm_suspend_noirq - Execute "noirq suspend" callbacks for all devices.
+ * @state: PM transition of the system being carried out.
+ *
+ * Prevent device drivers' interrupt handlers from being called and invoke
+ * "noirq" suspend callbacks for all non-sysdev devices.
+ */
+int dpm_suspend_noirq(pm_message_t state)
+{
+ int ret;
+
+ dpm_noirq_begin();
+ ret = dpm_noirq_suspend_devices(state);
+ if (ret)
+ dpm_resume_noirq(resume_event(state));
+
+ return ret;
+}
+
+/**
* device_suspend_late - Execute a "late suspend" callback for given device.
* @dev: Device to handle.
* @state: PM transition of the system being carried out.
@@ -1225,7 +1253,7 @@ int dpm_suspend_noirq(pm_message_t state)
static int __device_suspend_late(struct device *dev, pm_message_t state, bool async)
{
pm_callback_t callback = NULL;
- char *info = NULL;
+ const char *info = NULL;
int error = 0;
TRACE_DEVICE(dev);
@@ -1348,9 +1376,8 @@ int dpm_suspend_late(pm_message_t state)
suspend_stats.failed_suspend_late++;
dpm_save_failed_step(SUSPEND_SUSPEND_LATE);
dpm_resume_early(resume_event(state));
- } else {
- dpm_show_time(starttime, state, "late");
}
+ dpm_show_time(starttime, state, error, "late");
trace_suspend_resume(TPS("dpm_suspend_late"), state.event, false);
return error;
}
@@ -1384,7 +1411,7 @@ EXPORT_SYMBOL_GPL(dpm_suspend_end);
*/
static int legacy_suspend(struct device *dev, pm_message_t state,
int (*cb)(struct device *dev, pm_message_t state),
- char *info)
+ const char *info)
{
int error;
ktime_t calltime;
@@ -1426,7 +1453,7 @@ static void dpm_clear_suppliers_direct_complete(struct device *dev)
static int __device_suspend(struct device *dev, pm_message_t state, bool async)
{
pm_callback_t callback = NULL;
- char *info = NULL;
+ const char *info = NULL;
int error = 0;
DECLARE_DPM_WATCHDOG_ON_STACK(wd);
@@ -1616,8 +1643,8 @@ int dpm_suspend(pm_message_t state)
if (error) {
suspend_stats.failed_suspend++;
dpm_save_failed_step(SUSPEND_SUSPEND);
- } else
- dpm_show_time(starttime, state, NULL);
+ }
+ dpm_show_time(starttime, state, error, NULL);
trace_suspend_resume(TPS("dpm_suspend"), state.event, false);
return error;
}
@@ -1833,10 +1860,13 @@ void device_pm_check_callbacks(struct device *dev)
{
spin_lock_irq(&dev->power.lock);
dev->power.no_pm_callbacks =
- (!dev->bus || pm_ops_is_empty(dev->bus->pm)) &&
- (!dev->class || pm_ops_is_empty(dev->class->pm)) &&
+ (!dev->bus || (pm_ops_is_empty(dev->bus->pm) &&
+ !dev->bus->suspend && !dev->bus->resume)) &&
+ (!dev->class || (pm_ops_is_empty(dev->class->pm) &&
+ !dev->class->suspend && !dev->class->resume)) &&
(!dev->type || pm_ops_is_empty(dev->type->pm)) &&
(!dev->pm_domain || pm_ops_is_empty(&dev->pm_domain->ops)) &&
- (!dev->driver || pm_ops_is_empty(dev->driver->pm));
+ (!dev->driver || (pm_ops_is_empty(dev->driver->pm) &&
+ !dev->driver->suspend && !dev->driver->resume));
spin_unlock_irq(&dev->power.lock);
}
diff --git a/drivers/base/power/opp/core.c b/drivers/base/power/opp/core.c
index dae61720b314..a6de32530693 100644
--- a/drivers/base/power/opp/core.c
+++ b/drivers/base/power/opp/core.c
@@ -180,7 +180,7 @@ unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev)
{
struct opp_table *opp_table;
struct dev_pm_opp *opp;
- struct regulator *reg, **regulators;
+ struct regulator *reg;
unsigned long latency_ns = 0;
int ret, i, count;
struct {
@@ -198,15 +198,9 @@ unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev)
if (!count)
goto put_opp_table;
- regulators = kmalloc_array(count, sizeof(*regulators), GFP_KERNEL);
- if (!regulators)
- goto put_opp_table;
-
uV = kmalloc_array(count, sizeof(*uV), GFP_KERNEL);
if (!uV)
- goto free_regulators;
-
- memcpy(regulators, opp_table->regulators, count * sizeof(*regulators));
+ goto put_opp_table;
mutex_lock(&opp_table->lock);
@@ -232,15 +226,13 @@ unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev)
* isn't freed, while we are executing this routine.
*/
for (i = 0; i < count; i++) {
- reg = regulators[i];
+ reg = opp_table->regulators[i];
ret = regulator_set_voltage_time(reg, uV[i].min, uV[i].max);
if (ret > 0)
latency_ns += ret * 1000;
}
kfree(uV);
-free_regulators:
- kfree(regulators);
put_opp_table:
dev_pm_opp_put_opp_table(opp_table);
@@ -543,17 +535,18 @@ _generic_set_opp_clk_only(struct device *dev, struct clk *clk,
return ret;
}
-static int _generic_set_opp(struct dev_pm_set_opp_data *data)
+static int _generic_set_opp_regulator(const struct opp_table *opp_table,
+ struct device *dev,
+ unsigned long old_freq,
+ unsigned long freq,
+ struct dev_pm_opp_supply *old_supply,
+ struct dev_pm_opp_supply *new_supply)
{
- struct dev_pm_opp_supply *old_supply = data->old_opp.supplies;
- struct dev_pm_opp_supply *new_supply = data->new_opp.supplies;
- unsigned long old_freq = data->old_opp.rate, freq = data->new_opp.rate;
- struct regulator *reg = data->regulators[0];
- struct device *dev= data->dev;
+ struct regulator *reg = opp_table->regulators[0];
int ret;
/* This function only supports single regulator per device */
- if (WARN_ON(data->regulator_count > 1)) {
+ if (WARN_ON(opp_table->regulator_count > 1)) {
dev_err(dev, "multiple regulators are not supported\n");
return -EINVAL;
}
@@ -566,7 +559,7 @@ static int _generic_set_opp(struct dev_pm_set_opp_data *data)
}
/* Change frequency */
- ret = _generic_set_opp_clk_only(dev, data->clk, old_freq, freq);
+ ret = _generic_set_opp_clk_only(dev, opp_table->clk, old_freq, freq);
if (ret)
goto restore_voltage;
@@ -580,12 +573,12 @@ static int _generic_set_opp(struct dev_pm_set_opp_data *data)
return 0;
restore_freq:
- if (_generic_set_opp_clk_only(dev, data->clk, freq, old_freq))
+ if (_generic_set_opp_clk_only(dev, opp_table->clk, freq, old_freq))
dev_err(dev, "%s: failed to restore old-freq (%lu Hz)\n",
__func__, old_freq);
restore_voltage:
/* This shouldn't harm even if the voltages weren't updated earlier */
- if (old_supply->u_volt)
+ if (old_supply)
_set_opp_voltage(dev, reg, old_supply);
return ret;
@@ -603,10 +596,7 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)
{
struct opp_table *opp_table;
unsigned long freq, old_freq;
- int (*set_opp)(struct dev_pm_set_opp_data *data);
struct dev_pm_opp *old_opp, *opp;
- struct regulator **regulators;
- struct dev_pm_set_opp_data *data;
struct clk *clk;
int ret, size;
@@ -661,38 +651,35 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)
dev_dbg(dev, "%s: switching OPP: %lu Hz --> %lu Hz\n", __func__,
old_freq, freq);
- regulators = opp_table->regulators;
-
/* Only frequency scaling */
- if (!regulators) {
+ if (!opp_table->regulators) {
ret = _generic_set_opp_clk_only(dev, clk, old_freq, freq);
- goto put_opps;
- }
+ } else if (!opp_table->set_opp) {
+ ret = _generic_set_opp_regulator(opp_table, dev, old_freq, freq,
+ IS_ERR(old_opp) ? NULL : old_opp->supplies,
+ opp->supplies);
+ } else {
+ struct dev_pm_set_opp_data *data;
- if (opp_table->set_opp)
- set_opp = opp_table->set_opp;
- else
- set_opp = _generic_set_opp;
-
- data = opp_table->set_opp_data;
- data->regulators = regulators;
- data->regulator_count = opp_table->regulator_count;
- data->clk = clk;
- data->dev = dev;
-
- data->old_opp.rate = old_freq;
- size = sizeof(*opp->supplies) * opp_table->regulator_count;
- if (IS_ERR(old_opp))
- memset(data->old_opp.supplies, 0, size);
- else
- memcpy(data->old_opp.supplies, old_opp->supplies, size);
+ data = opp_table->set_opp_data;
+ data->regulators = opp_table->regulators;
+ data->regulator_count = opp_table->regulator_count;
+ data->clk = clk;
+ data->dev = dev;
+
+ data->old_opp.rate = old_freq;
+ size = sizeof(*opp->supplies) * opp_table->regulator_count;
+ if (IS_ERR(old_opp))
+ memset(data->old_opp.supplies, 0, size);
+ else
+ memcpy(data->old_opp.supplies, old_opp->supplies, size);
- data->new_opp.rate = freq;
- memcpy(data->new_opp.supplies, opp->supplies, size);
+ data->new_opp.rate = freq;
+ memcpy(data->new_opp.supplies, opp->supplies, size);
- ret = set_opp(data);
+ ret = opp_table->set_opp(data);
+ }
-put_opps:
dev_pm_opp_put(opp);
put_old_opp:
if (!IS_ERR(old_opp))
@@ -1376,6 +1363,73 @@ void dev_pm_opp_put_regulators(struct opp_table *opp_table)
EXPORT_SYMBOL_GPL(dev_pm_opp_put_regulators);
/**
+ * dev_pm_opp_set_clkname() - Set clk name for the device
+ * @dev: Device for which clk name is being set.
+ * @name: Clk name.
+ *
+ * In order to support OPP switching, OPP layer needs to get pointer to the
+ * clock for the device. Simple cases work fine without using this routine (i.e.
+ * by passing connection-id as NULL), but for a device with multiple clocks
+ * available, the OPP core needs to know the exact name of the clk to use.
+ *
+ * This must be called before any OPPs are initialized for the device.
+ */
+struct opp_table *dev_pm_opp_set_clkname(struct device *dev, const char *name)
+{
+ struct opp_table *opp_table;
+ int ret;
+
+ opp_table = dev_pm_opp_get_opp_table(dev);
+ if (!opp_table)
+ return ERR_PTR(-ENOMEM);
+
+ /* This should be called before OPPs are initialized */
+ if (WARN_ON(!list_empty(&opp_table->opp_list))) {
+ ret = -EBUSY;
+ goto err;
+ }
+
+ /* Already have default clk set, free it */
+ if (!IS_ERR(opp_table->clk))
+ clk_put(opp_table->clk);
+
+ /* Find clk for the device */
+ opp_table->clk = clk_get(dev, name);
+ if (IS_ERR(opp_table->clk)) {
+ ret = PTR_ERR(opp_table->clk);
+ if (ret != -EPROBE_DEFER) {
+ dev_err(dev, "%s: Couldn't find clock: %d\n", __func__,
+ ret);
+ }
+ goto err;
+ }
+
+ return opp_table;
+
+err:
+ dev_pm_opp_put_opp_table(opp_table);
+
+ return ERR_PTR(ret);
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_set_clkname);
+
+/**
+ * dev_pm_opp_put_clkname() - Releases resources blocked for clk.
+ * @opp_table: OPP table returned from dev_pm_opp_set_clkname().
+ */
+void dev_pm_opp_put_clkname(struct opp_table *opp_table)
+{
+ /* Make sure there are no concurrent readers while updating opp_table */
+ WARN_ON(!list_empty(&opp_table->opp_list));
+
+ clk_put(opp_table->clk);
+ opp_table->clk = ERR_PTR(-EINVAL);
+
+ dev_pm_opp_put_opp_table(opp_table);
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_put_clkname);
+
+/**
* dev_pm_opp_register_set_opp_helper() - Register custom set OPP helper
* @dev: Device for which the helper is getting registered.
* @set_opp: Custom set OPP helper.
@@ -1527,6 +1581,9 @@ static int _opp_set_availability(struct device *dev, unsigned long freq,
opp->available = availability_req;
+ dev_pm_opp_get(opp);
+ mutex_unlock(&opp_table->lock);
+
/* Notify the change of the OPP availability */
if (availability_req)
blocking_notifier_call_chain(&opp_table->head, OPP_EVENT_ENABLE,
@@ -1535,8 +1592,12 @@ static int _opp_set_availability(struct device *dev, unsigned long freq,
blocking_notifier_call_chain(&opp_table->head,
OPP_EVENT_DISABLE, opp);
+ dev_pm_opp_put(opp);
+ goto put_table;
+
unlock:
mutex_unlock(&opp_table->lock);
+put_table:
dev_pm_opp_put_opp_table(opp_table);
return r;
}
diff --git a/drivers/base/power/opp/debugfs.c b/drivers/base/power/opp/debugfs.c
index 95f433db4ac7..81cf120fcf43 100644
--- a/drivers/base/power/opp/debugfs.c
+++ b/drivers/base/power/opp/debugfs.c
@@ -40,11 +40,10 @@ static bool opp_debug_create_supplies(struct dev_pm_opp *opp,
struct dentry *pdentry)
{
struct dentry *d;
- int i = 0;
+ int i;
char *name;
- /* Always create at least supply-0 directory */
- do {
+ for (i = 0; i < opp_table->regulator_count; i++) {
name = kasprintf(GFP_KERNEL, "supply-%d", i);
/* Create per-opp directory */
@@ -70,7 +69,7 @@ static bool opp_debug_create_supplies(struct dev_pm_opp *opp,
if (!debugfs_create_ulong("u_amp", S_IRUGO, d,
&opp->supplies[i].u_amp))
return false;
- } while (++i < opp_table->regulator_count);
+ }
return true;
}
diff --git a/drivers/base/power/opp/of.c b/drivers/base/power/opp/of.c
index 779428676f63..0b718886479b 100644
--- a/drivers/base/power/opp/of.c
+++ b/drivers/base/power/opp/of.c
@@ -131,8 +131,14 @@ static int opp_parse_supplies(struct dev_pm_opp *opp, struct device *dev,
prop = of_find_property(opp->np, name, NULL);
/* Missing property isn't a problem, but an invalid entry is */
- if (!prop)
- return 0;
+ if (!prop) {
+ if (!opp_table->regulator_count)
+ return 0;
+
+ dev_err(dev, "%s: opp-microvolt missing although OPP managing regulators\n",
+ __func__);
+ return -EINVAL;
+ }
}
vcount = of_property_count_u32_elems(opp->np, name);
@@ -242,15 +248,22 @@ void dev_pm_opp_of_remove_table(struct device *dev)
}
EXPORT_SYMBOL_GPL(dev_pm_opp_of_remove_table);
-/* Returns opp descriptor node for a device, caller must do of_node_put() */
-struct device_node *dev_pm_opp_of_get_opp_desc_node(struct device *dev)
+/* Returns opp descriptor node for a device node, caller must
+ * do of_node_put() */
+static struct device_node *_opp_of_get_opp_desc_node(struct device_node *np)
{
/*
* There should be only ONE phandle present in "operating-points-v2"
* property.
*/
- return of_parse_phandle(dev->of_node, "operating-points-v2", 0);
+ return of_parse_phandle(np, "operating-points-v2", 0);
+}
+
+/* Returns opp descriptor node for a device, caller must do of_node_put() */
+struct device_node *dev_pm_opp_of_get_opp_desc_node(struct device *dev)
+{
+ return _opp_of_get_opp_desc_node(dev->of_node);
}
EXPORT_SYMBOL_GPL(dev_pm_opp_of_get_opp_desc_node);
@@ -533,8 +546,12 @@ int dev_pm_opp_of_cpumask_add_table(const struct cpumask *cpumask)
ret = dev_pm_opp_of_add_table(cpu_dev);
if (ret) {
- pr_err("%s: couldn't find opp table for cpu:%d, %d\n",
- __func__, cpu, ret);
+ /*
+ * OPP may get registered dynamically, don't print error
+ * message here.
+ */
+ pr_debug("%s: couldn't find opp table for cpu:%d, %d\n",
+ __func__, cpu, ret);
/* Free all other OPPs */
dev_pm_opp_of_cpumask_remove_table(cpumask);
@@ -566,8 +583,7 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_of_cpumask_add_table);
int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev,
struct cpumask *cpumask)
{
- struct device_node *np, *tmp_np;
- struct device *tcpu_dev;
+ struct device_node *np, *tmp_np, *cpu_np;
int cpu, ret = 0;
/* Get OPP descriptor node */
@@ -587,19 +603,18 @@ int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev,
if (cpu == cpu_dev->id)
continue;
- tcpu_dev = get_cpu_device(cpu);
- if (!tcpu_dev) {
- dev_err(cpu_dev, "%s: failed to get cpu%d device\n",
+ cpu_np = of_get_cpu_node(cpu, NULL);
+ if (!cpu_np) {
+ dev_err(cpu_dev, "%s: failed to get cpu%d node\n",
__func__, cpu);
- ret = -ENODEV;
+ ret = -ENOENT;
goto put_cpu_node;
}
/* Get OPP descriptor node */
- tmp_np = dev_pm_opp_of_get_opp_desc_node(tcpu_dev);
+ tmp_np = _opp_of_get_opp_desc_node(cpu_np);
if (!tmp_np) {
- dev_err(tcpu_dev, "%s: Couldn't find opp node.\n",
- __func__);
+ pr_err("%pOF: Couldn't find opp node\n", cpu_np);
ret = -ENOENT;
goto put_cpu_node;
}
diff --git a/drivers/base/power/qos.c b/drivers/base/power/qos.c
index f850daeffba4..277d43a83f53 100644
--- a/drivers/base/power/qos.c
+++ b/drivers/base/power/qos.c
@@ -277,11 +277,11 @@ void dev_pm_qos_constraints_destroy(struct device *dev)
mutex_unlock(&dev_pm_qos_sysfs_mtx);
}
-static bool dev_pm_qos_invalid_request(struct device *dev,
- struct dev_pm_qos_request *req)
+static bool dev_pm_qos_invalid_req_type(struct device *dev,
+ enum dev_pm_qos_req_type type)
{
- return !req || (req->type == DEV_PM_QOS_LATENCY_TOLERANCE
- && !dev->power.set_latency_tolerance);
+ return type == DEV_PM_QOS_LATENCY_TOLERANCE &&
+ !dev->power.set_latency_tolerance;
}
static int __dev_pm_qos_add_request(struct device *dev,
@@ -290,7 +290,7 @@ static int __dev_pm_qos_add_request(struct device *dev,
{
int ret = 0;
- if (!dev || dev_pm_qos_invalid_request(dev, req))
+ if (!dev || !req || dev_pm_qos_invalid_req_type(dev, type))
return -EINVAL;
if (WARN(dev_pm_qos_request_active(req),
diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c
index 33b4b902741a..156ab57bca77 100644
--- a/drivers/base/power/sysfs.c
+++ b/drivers/base/power/sysfs.c
@@ -272,6 +272,8 @@ static ssize_t pm_qos_latency_tolerance_store(struct device *dev,
value = PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT;
else if (!strcmp(buf, "any") || !strcmp(buf, "any\n"))
value = PM_QOS_LATENCY_ANY;
+ else
+ return -EINVAL;
}
ret = dev_pm_qos_update_user_latency_tolerance(dev, value);
return ret < 0 ? ret : n;
@@ -607,7 +609,7 @@ static struct attribute *power_attrs[] = {
#endif /* CONFIG_PM_ADVANCED_DEBUG */
NULL,
};
-static struct attribute_group pm_attr_group = {
+static const struct attribute_group pm_attr_group = {
.name = power_group_name,
.attrs = power_attrs,
};
@@ -629,7 +631,7 @@ static struct attribute *wakeup_attrs[] = {
#endif
NULL,
};
-static struct attribute_group pm_wakeup_attr_group = {
+static const struct attribute_group pm_wakeup_attr_group = {
.name = power_group_name,
.attrs = wakeup_attrs,
};
@@ -644,7 +646,7 @@ static struct attribute *runtime_attrs[] = {
&dev_attr_autosuspend_delay_ms.attr,
NULL,
};
-static struct attribute_group pm_runtime_attr_group = {
+static const struct attribute_group pm_runtime_attr_group = {
.name = power_group_name,
.attrs = runtime_attrs,
};
@@ -653,7 +655,7 @@ static struct attribute *pm_qos_resume_latency_attrs[] = {
&dev_attr_pm_qos_resume_latency_us.attr,
NULL,
};
-static struct attribute_group pm_qos_resume_latency_attr_group = {
+static const struct attribute_group pm_qos_resume_latency_attr_group = {
.name = power_group_name,
.attrs = pm_qos_resume_latency_attrs,
};
@@ -662,7 +664,7 @@ static struct attribute *pm_qos_latency_tolerance_attrs[] = {
&dev_attr_pm_qos_latency_tolerance_us.attr,
NULL,
};
-static struct attribute_group pm_qos_latency_tolerance_attr_group = {
+static const struct attribute_group pm_qos_latency_tolerance_attr_group = {
.name = power_group_name,
.attrs = pm_qos_latency_tolerance_attrs,
};
@@ -672,7 +674,7 @@ static struct attribute *pm_qos_flags_attrs[] = {
&dev_attr_pm_qos_remote_wakeup.attr,
NULL,
};
-static struct attribute_group pm_qos_flags_attr_group = {
+static const struct attribute_group pm_qos_flags_attr_group = {
.name = power_group_name,
.attrs = pm_qos_flags_attrs,
};
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index c313b600d356..cdd6f256da59 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -28,8 +28,8 @@ bool events_check_enabled __read_mostly;
/* First wakeup IRQ seen by the kernel in the last cycle. */
unsigned int pm_wakeup_irq __read_mostly;
-/* If set and the system is suspending, terminate the suspend. */
-static bool pm_abort_suspend __read_mostly;
+/* If greater than 0 and the system is suspending, terminate the suspend. */
+static atomic_t pm_abort_suspend __read_mostly;
/*
* Combined counters of registered wakeup events and wakeup events in progress.
@@ -60,6 +60,8 @@ static LIST_HEAD(wakeup_sources);
static DECLARE_WAIT_QUEUE_HEAD(wakeup_count_wait_queue);
+DEFINE_STATIC_SRCU(wakeup_srcu);
+
static struct wakeup_source deleted_ws = {
.name = "deleted",
.lock = __SPIN_LOCK_UNLOCKED(deleted_ws.lock),
@@ -198,7 +200,7 @@ void wakeup_source_remove(struct wakeup_source *ws)
spin_lock_irqsave(&events_lock, flags);
list_del_rcu(&ws->entry);
spin_unlock_irqrestore(&events_lock, flags);
- synchronize_rcu();
+ synchronize_srcu(&wakeup_srcu);
}
EXPORT_SYMBOL_GPL(wakeup_source_remove);
@@ -332,12 +334,12 @@ void device_wakeup_detach_irq(struct device *dev)
void device_wakeup_arm_wake_irqs(void)
{
struct wakeup_source *ws;
+ int srcuidx;
- rcu_read_lock();
+ srcuidx = srcu_read_lock(&wakeup_srcu);
list_for_each_entry_rcu(ws, &wakeup_sources, entry)
dev_pm_arm_wake_irq(ws->wakeirq);
-
- rcu_read_unlock();
+ srcu_read_unlock(&wakeup_srcu, srcuidx);
}
/**
@@ -348,12 +350,12 @@ void device_wakeup_arm_wake_irqs(void)
void device_wakeup_disarm_wake_irqs(void)
{
struct wakeup_source *ws;
+ int srcuidx;
- rcu_read_lock();
+ srcuidx = srcu_read_lock(&wakeup_srcu);
list_for_each_entry_rcu(ws, &wakeup_sources, entry)
dev_pm_disarm_wake_irq(ws->wakeirq);
-
- rcu_read_unlock();
+ srcu_read_unlock(&wakeup_srcu, srcuidx);
}
/**
@@ -410,15 +412,17 @@ void device_set_wakeup_capable(struct device *dev, bool capable)
if (!!dev->power.can_wakeup == !!capable)
return;
+ dev->power.can_wakeup = capable;
if (device_is_registered(dev) && !list_empty(&dev->power.entry)) {
if (capable) {
- if (wakeup_sysfs_add(dev))
- return;
+ int ret = wakeup_sysfs_add(dev);
+
+ if (ret)
+ dev_info(dev, "Wakeup sysfs attributes not added\n");
} else {
wakeup_sysfs_remove(dev);
}
}
- dev->power.can_wakeup = capable;
}
EXPORT_SYMBOL_GPL(device_set_wakeup_capable);
@@ -804,10 +808,10 @@ EXPORT_SYMBOL_GPL(pm_wakeup_dev_event);
void pm_print_active_wakeup_sources(void)
{
struct wakeup_source *ws;
- int active = 0;
+ int srcuidx, active = 0;
struct wakeup_source *last_activity_ws = NULL;
- rcu_read_lock();
+ srcuidx = srcu_read_lock(&wakeup_srcu);
list_for_each_entry_rcu(ws, &wakeup_sources, entry) {
if (ws->active) {
pr_debug("active wakeup source: %s\n", ws->name);
@@ -823,7 +827,7 @@ void pm_print_active_wakeup_sources(void)
if (!active && last_activity_ws)
pr_debug("last active wakeup source: %s\n",
last_activity_ws->name);
- rcu_read_unlock();
+ srcu_read_unlock(&wakeup_srcu, srcuidx);
}
EXPORT_SYMBOL_GPL(pm_print_active_wakeup_sources);
@@ -855,20 +859,26 @@ bool pm_wakeup_pending(void)
pm_print_active_wakeup_sources();
}
- return ret || pm_abort_suspend;
+ return ret || atomic_read(&pm_abort_suspend) > 0;
}
void pm_system_wakeup(void)
{
- pm_abort_suspend = true;
- freeze_wake();
+ atomic_inc(&pm_abort_suspend);
+ s2idle_wake();
}
EXPORT_SYMBOL_GPL(pm_system_wakeup);
-void pm_wakeup_clear(void)
+void pm_system_cancel_wakeup(void)
+{
+ atomic_dec(&pm_abort_suspend);
+}
+
+void pm_wakeup_clear(bool reset)
{
- pm_abort_suspend = false;
pm_wakeup_irq = 0;
+ if (reset)
+ atomic_set(&pm_abort_suspend, 0);
}
void pm_system_irq_wakeup(unsigned int irq_number)
@@ -950,8 +960,9 @@ void pm_wakep_autosleep_enabled(bool set)
{
struct wakeup_source *ws;
ktime_t now = ktime_get();
+ int srcuidx;
- rcu_read_lock();
+ srcuidx = srcu_read_lock(&wakeup_srcu);
list_for_each_entry_rcu(ws, &wakeup_sources, entry) {
spin_lock_irq(&ws->lock);
if (ws->autosleep_enabled != set) {
@@ -965,7 +976,7 @@ void pm_wakep_autosleep_enabled(bool set)
}
spin_unlock_irq(&ws->lock);
}
- rcu_read_unlock();
+ srcu_read_unlock(&wakeup_srcu, srcuidx);
}
#endif /* CONFIG_PM_AUTOSLEEP */
@@ -1026,15 +1037,16 @@ static int print_wakeup_source_stats(struct seq_file *m,
static int wakeup_sources_stats_show(struct seq_file *m, void *unused)
{
struct wakeup_source *ws;
+ int srcuidx;
seq_puts(m, "name\t\tactive_count\tevent_count\twakeup_count\t"
"expire_count\tactive_since\ttotal_time\tmax_time\t"
"last_change\tprevent_suspend_time\n");
- rcu_read_lock();
+ srcuidx = srcu_read_lock(&wakeup_srcu);
list_for_each_entry_rcu(ws, &wakeup_sources, entry)
print_wakeup_source_stats(m, ws);
- rcu_read_unlock();
+ srcu_read_unlock(&wakeup_srcu, srcuidx);
print_wakeup_source_stats(m, &deleted_ws);
diff --git a/drivers/base/property.c b/drivers/base/property.c
index 149de311a10e..7ed99c1b2a8b 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -21,23 +21,30 @@
#include <linux/phy.h>
struct property_set {
+ struct device *dev;
struct fwnode_handle fwnode;
const struct property_entry *properties;
};
-static inline bool is_pset_node(struct fwnode_handle *fwnode)
-{
- return !IS_ERR_OR_NULL(fwnode) && fwnode->type == FWNODE_PDATA;
-}
+static const struct fwnode_operations pset_fwnode_ops;
-static inline struct property_set *to_pset_node(struct fwnode_handle *fwnode)
+static inline bool is_pset_node(const struct fwnode_handle *fwnode)
{
- return is_pset_node(fwnode) ?
- container_of(fwnode, struct property_set, fwnode) : NULL;
+ return !IS_ERR_OR_NULL(fwnode) && fwnode->ops == &pset_fwnode_ops;
}
-static const struct property_entry *pset_prop_get(struct property_set *pset,
- const char *name)
+#define to_pset_node(__fwnode) \
+ ({ \
+ typeof(__fwnode) __to_pset_node_fwnode = __fwnode; \
+ \
+ is_pset_node(__to_pset_node_fwnode) ? \
+ container_of(__to_pset_node_fwnode, \
+ struct property_set, fwnode) : \
+ NULL; \
+ })
+
+static const struct property_entry *
+pset_prop_get(const struct property_set *pset, const char *name)
{
const struct property_entry *prop;
@@ -51,7 +58,7 @@ static const struct property_entry *pset_prop_get(struct property_set *pset,
return NULL;
}
-static const void *pset_prop_find(struct property_set *pset,
+static const void *pset_prop_find(const struct property_set *pset,
const char *propname, size_t length)
{
const struct property_entry *prop;
@@ -71,7 +78,7 @@ static const void *pset_prop_find(struct property_set *pset,
return pointer;
}
-static int pset_prop_read_u8_array(struct property_set *pset,
+static int pset_prop_read_u8_array(const struct property_set *pset,
const char *propname,
u8 *values, size_t nval)
{
@@ -86,7 +93,7 @@ static int pset_prop_read_u8_array(struct property_set *pset,
return 0;
}
-static int pset_prop_read_u16_array(struct property_set *pset,
+static int pset_prop_read_u16_array(const struct property_set *pset,
const char *propname,
u16 *values, size_t nval)
{
@@ -101,7 +108,7 @@ static int pset_prop_read_u16_array(struct property_set *pset,
return 0;
}
-static int pset_prop_read_u32_array(struct property_set *pset,
+static int pset_prop_read_u32_array(const struct property_set *pset,
const char *propname,
u32 *values, size_t nval)
{
@@ -116,7 +123,7 @@ static int pset_prop_read_u32_array(struct property_set *pset,
return 0;
}
-static int pset_prop_read_u64_array(struct property_set *pset,
+static int pset_prop_read_u64_array(const struct property_set *pset,
const char *propname,
u64 *values, size_t nval)
{
@@ -131,7 +138,7 @@ static int pset_prop_read_u64_array(struct property_set *pset,
return 0;
}
-static int pset_prop_count_elems_of_size(struct property_set *pset,
+static int pset_prop_count_elems_of_size(const struct property_set *pset,
const char *propname, size_t length)
{
const struct property_entry *prop;
@@ -143,7 +150,7 @@ static int pset_prop_count_elems_of_size(struct property_set *pset,
return prop->length / length;
}
-static int pset_prop_read_string_array(struct property_set *pset,
+static int pset_prop_read_string_array(const struct property_set *pset,
const char *propname,
const char **strings, size_t nval)
{
@@ -187,6 +194,51 @@ struct fwnode_handle *dev_fwnode(struct device *dev)
}
EXPORT_SYMBOL_GPL(dev_fwnode);
+static bool pset_fwnode_property_present(const struct fwnode_handle *fwnode,
+ const char *propname)
+{
+ return !!pset_prop_get(to_pset_node(fwnode), propname);
+}
+
+static int pset_fwnode_read_int_array(const struct fwnode_handle *fwnode,
+ const char *propname,
+ unsigned int elem_size, void *val,
+ size_t nval)
+{
+ const struct property_set *node = to_pset_node(fwnode);
+
+ if (!val)
+ return pset_prop_count_elems_of_size(node, propname, elem_size);
+
+ switch (elem_size) {
+ case sizeof(u8):
+ return pset_prop_read_u8_array(node, propname, val, nval);
+ case sizeof(u16):
+ return pset_prop_read_u16_array(node, propname, val, nval);
+ case sizeof(u32):
+ return pset_prop_read_u32_array(node, propname, val, nval);
+ case sizeof(u64):
+ return pset_prop_read_u64_array(node, propname, val, nval);
+ }
+
+ return -ENXIO;
+}
+
+static int
+pset_fwnode_property_read_string_array(const struct fwnode_handle *fwnode,
+ const char *propname,
+ const char **val, size_t nval)
+{
+ return pset_prop_read_string_array(to_pset_node(fwnode), propname,
+ val, nval);
+}
+
+static const struct fwnode_operations pset_fwnode_ops = {
+ .property_present = pset_fwnode_property_present,
+ .property_read_int_array = pset_fwnode_read_int_array,
+ .property_read_string_array = pset_fwnode_property_read_string_array,
+};
+
/**
* device_property_present - check if a property of a device is present
* @dev: Device whose property is being checked
@@ -200,31 +252,21 @@ bool device_property_present(struct device *dev, const char *propname)
}
EXPORT_SYMBOL_GPL(device_property_present);
-static bool __fwnode_property_present(struct fwnode_handle *fwnode,
- const char *propname)
-{
- if (is_of_node(fwnode))
- return of_property_read_bool(to_of_node(fwnode), propname);
- else if (is_acpi_node(fwnode))
- return !acpi_node_prop_get(fwnode, propname, NULL);
- else if (is_pset_node(fwnode))
- return !!pset_prop_get(to_pset_node(fwnode), propname);
- return false;
-}
-
/**
* fwnode_property_present - check if a property of a firmware node is present
* @fwnode: Firmware node whose property to check
* @propname: Name of the property
*/
-bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname)
+bool fwnode_property_present(const struct fwnode_handle *fwnode,
+ const char *propname)
{
bool ret;
- ret = __fwnode_property_present(fwnode, propname);
+ ret = fwnode_call_bool_op(fwnode, property_present, propname);
if (ret == false && !IS_ERR_OR_NULL(fwnode) &&
!IS_ERR_OR_NULL(fwnode->secondary))
- ret = __fwnode_property_present(fwnode->secondary, propname);
+ ret = fwnode_call_bool_op(fwnode->secondary, property_present,
+ propname);
return ret;
}
EXPORT_SYMBOL_GPL(fwnode_property_present);
@@ -398,42 +440,23 @@ int device_property_match_string(struct device *dev, const char *propname,
}
EXPORT_SYMBOL_GPL(device_property_match_string);
-#define OF_DEV_PROP_READ_ARRAY(node, propname, type, val, nval) \
- (val) ? of_property_read_##type##_array((node), (propname), (val), (nval)) \
- : of_property_count_elems_of_size((node), (propname), sizeof(type))
-
-#define PSET_PROP_READ_ARRAY(node, propname, type, val, nval) \
- (val) ? pset_prop_read_##type##_array((node), (propname), (val), (nval)) \
- : pset_prop_count_elems_of_size((node), (propname), sizeof(type))
-
-#define FWNODE_PROP_READ(_fwnode_, _propname_, _type_, _proptype_, _val_, _nval_) \
-({ \
- int _ret_; \
- if (is_of_node(_fwnode_)) \
- _ret_ = OF_DEV_PROP_READ_ARRAY(to_of_node(_fwnode_), _propname_, \
- _type_, _val_, _nval_); \
- else if (is_acpi_node(_fwnode_)) \
- _ret_ = acpi_node_prop_read(_fwnode_, _propname_, _proptype_, \
- _val_, _nval_); \
- else if (is_pset_node(_fwnode_)) \
- _ret_ = PSET_PROP_READ_ARRAY(to_pset_node(_fwnode_), _propname_, \
- _type_, _val_, _nval_); \
- else \
- _ret_ = -ENXIO; \
- _ret_; \
-})
-
-#define FWNODE_PROP_READ_ARRAY(_fwnode_, _propname_, _type_, _proptype_, _val_, _nval_) \
-({ \
- int _ret_; \
- _ret_ = FWNODE_PROP_READ(_fwnode_, _propname_, _type_, _proptype_, \
- _val_, _nval_); \
- if (_ret_ == -EINVAL && !IS_ERR_OR_NULL(_fwnode_) && \
- !IS_ERR_OR_NULL(_fwnode_->secondary)) \
- _ret_ = FWNODE_PROP_READ(_fwnode_->secondary, _propname_, _type_, \
- _proptype_, _val_, _nval_); \
- _ret_; \
-})
+static int fwnode_property_read_int_array(const struct fwnode_handle *fwnode,
+ const char *propname,
+ unsigned int elem_size, void *val,
+ size_t nval)
+{
+ int ret;
+
+ ret = fwnode_call_int_op(fwnode, property_read_int_array, propname,
+ elem_size, val, nval);
+ if (ret == -EINVAL && !IS_ERR_OR_NULL(fwnode) &&
+ !IS_ERR_OR_NULL(fwnode->secondary))
+ ret = fwnode_call_int_op(
+ fwnode->secondary, property_read_int_array, propname,
+ elem_size, val, nval);
+
+ return ret;
+}
/**
* fwnode_property_read_u8_array - return a u8 array property of firmware node
@@ -453,11 +476,11 @@ EXPORT_SYMBOL_GPL(device_property_match_string);
* %-EOVERFLOW if the size of the property is not as expected,
* %-ENXIO if no suitable firmware interface is present.
*/
-int fwnode_property_read_u8_array(struct fwnode_handle *fwnode,
+int fwnode_property_read_u8_array(const struct fwnode_handle *fwnode,
const char *propname, u8 *val, size_t nval)
{
- return FWNODE_PROP_READ_ARRAY(fwnode, propname, u8, DEV_PROP_U8,
- val, nval);
+ return fwnode_property_read_int_array(fwnode, propname, sizeof(u8),
+ val, nval);
}
EXPORT_SYMBOL_GPL(fwnode_property_read_u8_array);
@@ -479,11 +502,11 @@ EXPORT_SYMBOL_GPL(fwnode_property_read_u8_array);
* %-EOVERFLOW if the size of the property is not as expected,
* %-ENXIO if no suitable firmware interface is present.
*/
-int fwnode_property_read_u16_array(struct fwnode_handle *fwnode,
+int fwnode_property_read_u16_array(const struct fwnode_handle *fwnode,
const char *propname, u16 *val, size_t nval)
{
- return FWNODE_PROP_READ_ARRAY(fwnode, propname, u16, DEV_PROP_U16,
- val, nval);
+ return fwnode_property_read_int_array(fwnode, propname, sizeof(u16),
+ val, nval);
}
EXPORT_SYMBOL_GPL(fwnode_property_read_u16_array);
@@ -505,11 +528,11 @@ EXPORT_SYMBOL_GPL(fwnode_property_read_u16_array);
* %-EOVERFLOW if the size of the property is not as expected,
* %-ENXIO if no suitable firmware interface is present.
*/
-int fwnode_property_read_u32_array(struct fwnode_handle *fwnode,
+int fwnode_property_read_u32_array(const struct fwnode_handle *fwnode,
const char *propname, u32 *val, size_t nval)
{
- return FWNODE_PROP_READ_ARRAY(fwnode, propname, u32, DEV_PROP_U32,
- val, nval);
+ return fwnode_property_read_int_array(fwnode, propname, sizeof(u32),
+ val, nval);
}
EXPORT_SYMBOL_GPL(fwnode_property_read_u32_array);
@@ -531,32 +554,14 @@ EXPORT_SYMBOL_GPL(fwnode_property_read_u32_array);
* %-EOVERFLOW if the size of the property is not as expected,
* %-ENXIO if no suitable firmware interface is present.
*/
-int fwnode_property_read_u64_array(struct fwnode_handle *fwnode,
+int fwnode_property_read_u64_array(const struct fwnode_handle *fwnode,
const char *propname, u64 *val, size_t nval)
{
- return FWNODE_PROP_READ_ARRAY(fwnode, propname, u64, DEV_PROP_U64,
- val, nval);
+ return fwnode_property_read_int_array(fwnode, propname, sizeof(u64),
+ val, nval);
}
EXPORT_SYMBOL_GPL(fwnode_property_read_u64_array);
-static int __fwnode_property_read_string_array(struct fwnode_handle *fwnode,
- const char *propname,
- const char **val, size_t nval)
-{
- if (is_of_node(fwnode))
- return val ?
- of_property_read_string_array(to_of_node(fwnode),
- propname, val, nval) :
- of_property_count_strings(to_of_node(fwnode), propname);
- else if (is_acpi_node(fwnode))
- return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING,
- val, nval);
- else if (is_pset_node(fwnode))
- return pset_prop_read_string_array(to_pset_node(fwnode),
- propname, val, nval);
- return -ENXIO;
-}
-
/**
* fwnode_property_read_string_array - return string array property of a node
* @fwnode: Firmware node to get the property of
@@ -575,17 +580,19 @@ static int __fwnode_property_read_string_array(struct fwnode_handle *fwnode,
* %-EOVERFLOW if the size of the property is not as expected,
* %-ENXIO if no suitable firmware interface is present.
*/
-int fwnode_property_read_string_array(struct fwnode_handle *fwnode,
+int fwnode_property_read_string_array(const struct fwnode_handle *fwnode,
const char *propname, const char **val,
size_t nval)
{
int ret;
- ret = __fwnode_property_read_string_array(fwnode, propname, val, nval);
+ ret = fwnode_call_int_op(fwnode, property_read_string_array, propname,
+ val, nval);
if (ret == -EINVAL && !IS_ERR_OR_NULL(fwnode) &&
!IS_ERR_OR_NULL(fwnode->secondary))
- ret = __fwnode_property_read_string_array(fwnode->secondary,
- propname, val, nval);
+ ret = fwnode_call_int_op(fwnode->secondary,
+ property_read_string_array, propname,
+ val, nval);
return ret;
}
EXPORT_SYMBOL_GPL(fwnode_property_read_string_array);
@@ -605,7 +612,7 @@ EXPORT_SYMBOL_GPL(fwnode_property_read_string_array);
* %-EPROTO or %-EILSEQ if the property is not a string,
* %-ENXIO if no suitable firmware interface is present.
*/
-int fwnode_property_read_string(struct fwnode_handle *fwnode,
+int fwnode_property_read_string(const struct fwnode_handle *fwnode,
const char *propname, const char **val)
{
int ret = fwnode_property_read_string_array(fwnode, propname, val, 1);
@@ -629,7 +636,7 @@ EXPORT_SYMBOL_GPL(fwnode_property_read_string);
* %-EPROTO if the property is not an array of strings,
* %-ENXIO if no suitable firmware interface is present.
*/
-int fwnode_property_match_string(struct fwnode_handle *fwnode,
+int fwnode_property_match_string(const struct fwnode_handle *fwnode,
const char *propname, const char *string)
{
const char **values;
@@ -659,6 +666,38 @@ out:
}
EXPORT_SYMBOL_GPL(fwnode_property_match_string);
+/**
+ * fwnode_property_get_reference_args() - Find a reference with arguments
+ * @fwnode: Firmware node where to look for the reference
+ * @prop: The name of the property
+ * @nargs_prop: The name of the property telling the number of
+ * arguments in the referred node. NULL if @nargs is known,
+ * otherwise @nargs is ignored. Only relevant on OF.
+ * @nargs: Number of arguments. Ignored if @nargs_prop is non-NULL.
+ * @index: Index of the reference, from zero onwards.
+ * @args: Result structure with reference and integer arguments.
+ *
+ * Obtain a reference based on a named property in an fwnode, with
+ * integer arguments.
+ *
+ * Caller is responsible to call fwnode_handle_put() on the returned
+ * args->fwnode pointer.
+ *
+ * Returns: %0 on success
+ * %-ENOENT when the index is out of bounds, the index has an empty
+ * reference or the property was not found
+ * %-EINVAL on parse error
+ */
+int fwnode_property_get_reference_args(const struct fwnode_handle *fwnode,
+ const char *prop, const char *nargs_prop,
+ unsigned int nargs, unsigned int index,
+ struct fwnode_reference_args *args)
+{
+ return fwnode_call_int_op(fwnode, get_reference_args, prop, nargs_prop,
+ nargs, index, args);
+}
+EXPORT_SYMBOL_GPL(fwnode_property_get_reference_args);
+
static int property_copy_string_array(struct property_entry *dst,
const struct property_entry *src)
{
@@ -857,6 +896,7 @@ static struct property_set *pset_copy_set(const struct property_set *pset)
void device_remove_properties(struct device *dev)
{
struct fwnode_handle *fwnode;
+ struct property_set *pset;
fwnode = dev_fwnode(dev);
if (!fwnode)
@@ -866,16 +906,16 @@ void device_remove_properties(struct device *dev)
* the pset. If there is no real firmware node (ACPI/DT) primary
* will hold the pset.
*/
- if (is_pset_node(fwnode)) {
+ pset = to_pset_node(fwnode);
+ if (pset) {
set_primary_fwnode(dev, NULL);
- pset_free_set(to_pset_node(fwnode));
} else {
- fwnode = fwnode->secondary;
- if (!IS_ERR(fwnode) && is_pset_node(fwnode)) {
+ pset = to_pset_node(fwnode->secondary);
+ if (pset && dev == pset->dev)
set_secondary_fwnode(dev, NULL);
- pset_free_set(to_pset_node(fwnode));
- }
}
+ if (pset && dev == pset->dev)
+ pset_free_set(pset);
}
EXPORT_SYMBOL_GPL(device_remove_properties);
@@ -902,8 +942,9 @@ int device_add_properties(struct device *dev,
if (IS_ERR(p))
return PTR_ERR(p);
- p->fwnode.type = FWNODE_PDATA;
+ p->fwnode.ops = &pset_fwnode_ops;
set_secondary_fwnode(dev, &p->fwnode);
+ p->dev = dev;
return 0;
}
EXPORT_SYMBOL_GPL(device_add_properties);
@@ -936,21 +977,9 @@ EXPORT_SYMBOL_GPL(fwnode_get_next_parent);
* Return parent firmware node of the given node if possible or %NULL if no
* parent was available.
*/
-struct fwnode_handle *fwnode_get_parent(struct fwnode_handle *fwnode)
+struct fwnode_handle *fwnode_get_parent(const struct fwnode_handle *fwnode)
{
- struct fwnode_handle *parent = NULL;
-
- if (is_of_node(fwnode)) {
- struct device_node *node;
-
- node = of_get_parent(to_of_node(fwnode));
- if (node)
- parent = &node->fwnode;
- } else if (is_acpi_node(fwnode)) {
- parent = acpi_node_get_parent(fwnode);
- }
-
- return parent;
+ return fwnode_call_ptr_op(fwnode, get_parent);
}
EXPORT_SYMBOL_GPL(fwnode_get_parent);
@@ -959,21 +988,11 @@ EXPORT_SYMBOL_GPL(fwnode_get_parent);
* @fwnode: Firmware node to find the next child node for.
* @child: Handle to one of the node's child nodes or a %NULL handle.
*/
-struct fwnode_handle *fwnode_get_next_child_node(struct fwnode_handle *fwnode,
- struct fwnode_handle *child)
+struct fwnode_handle *
+fwnode_get_next_child_node(const struct fwnode_handle *fwnode,
+ struct fwnode_handle *child)
{
- if (is_of_node(fwnode)) {
- struct device_node *node;
-
- node = of_get_next_available_child(to_of_node(fwnode),
- to_of_node(child));
- if (node)
- return &node->fwnode;
- } else if (is_acpi_node(fwnode)) {
- return acpi_get_next_subnode(fwnode, child);
- }
-
- return NULL;
+ return fwnode_call_ptr_op(fwnode, get_next_child_node, child);
}
EXPORT_SYMBOL_GPL(fwnode_get_next_child_node);
@@ -1002,26 +1021,11 @@ EXPORT_SYMBOL_GPL(device_get_next_child_node);
* @fwnode: Firmware node to find the named child node for.
* @childname: String to match child node name against.
*/
-struct fwnode_handle *fwnode_get_named_child_node(struct fwnode_handle *fwnode,
- const char *childname)
+struct fwnode_handle *
+fwnode_get_named_child_node(const struct fwnode_handle *fwnode,
+ const char *childname)
{
- struct fwnode_handle *child;
-
- /*
- * Find first matching named child node of this fwnode.
- * For ACPI this will be a data only sub-node.
- */
- fwnode_for_each_child_node(fwnode, child) {
- if (is_of_node(child)) {
- if (!of_node_cmp(to_of_node(child)->name, childname))
- return child;
- } else if (is_acpi_data_node(child)) {
- if (acpi_data_node_match(child, childname))
- return child;
- }
- }
-
- return NULL;
+ return fwnode_call_ptr_op(fwnode, get_named_child_node, childname);
}
EXPORT_SYMBOL_GPL(fwnode_get_named_child_node);
@@ -1043,8 +1047,7 @@ EXPORT_SYMBOL_GPL(device_get_named_child_node);
*/
void fwnode_handle_get(struct fwnode_handle *fwnode)
{
- if (is_of_node(fwnode))
- of_node_get(to_of_node(fwnode));
+ fwnode_call_void_op(fwnode, get);
}
EXPORT_SYMBOL_GPL(fwnode_handle_get);
@@ -1058,12 +1061,21 @@ EXPORT_SYMBOL_GPL(fwnode_handle_get);
*/
void fwnode_handle_put(struct fwnode_handle *fwnode)
{
- if (is_of_node(fwnode))
- of_node_put(to_of_node(fwnode));
+ fwnode_call_void_op(fwnode, put);
}
EXPORT_SYMBOL_GPL(fwnode_handle_put);
/**
+ * fwnode_device_is_available - check if a device is available for use
+ * @fwnode: Pointer to the fwnode of the device.
+ */
+bool fwnode_device_is_available(const struct fwnode_handle *fwnode)
+{
+ return fwnode_call_bool_op(fwnode, device_is_available);
+}
+EXPORT_SYMBOL_GPL(fwnode_device_is_available);
+
+/**
* device_get_child_node_count - return the number of child nodes for device
* @dev: Device to cound the child nodes for
*/
@@ -1195,29 +1207,32 @@ EXPORT_SYMBOL(device_get_mac_address);
* are available.
*/
struct fwnode_handle *
-fwnode_graph_get_next_endpoint(struct fwnode_handle *fwnode,
+fwnode_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
struct fwnode_handle *prev)
{
- struct fwnode_handle *endpoint = NULL;
-
- if (is_of_node(fwnode)) {
- struct device_node *node;
+ return fwnode_call_ptr_op(fwnode, graph_get_next_endpoint, prev);
+}
+EXPORT_SYMBOL_GPL(fwnode_graph_get_next_endpoint);
- node = of_graph_get_next_endpoint(to_of_node(fwnode),
- to_of_node(prev));
+/**
+ * fwnode_graph_get_port_parent - Return the device fwnode of a port endpoint
+ * @endpoint: Endpoint firmware node of the port
+ *
+ * Return: the firmware node of the device the @endpoint belongs to.
+ */
+struct fwnode_handle *
+fwnode_graph_get_port_parent(const struct fwnode_handle *endpoint)
+{
+ struct fwnode_handle *port, *parent;
- if (node)
- endpoint = &node->fwnode;
- } else if (is_acpi_node(fwnode)) {
- endpoint = acpi_graph_get_next_endpoint(fwnode, prev);
- if (IS_ERR(endpoint))
- endpoint = NULL;
- }
+ port = fwnode_get_parent(endpoint);
+ parent = fwnode_call_ptr_op(port, graph_get_port_parent);
- return endpoint;
+ fwnode_handle_put(port);
+ return parent;
}
-EXPORT_SYMBOL_GPL(fwnode_graph_get_next_endpoint);
+EXPORT_SYMBOL_GPL(fwnode_graph_get_port_parent);
/**
* fwnode_graph_get_remote_port_parent - Return fwnode of a remote device
@@ -1226,24 +1241,14 @@ EXPORT_SYMBOL_GPL(fwnode_graph_get_next_endpoint);
* Extracts firmware node of a remote device the @fwnode points to.
*/
struct fwnode_handle *
-fwnode_graph_get_remote_port_parent(struct fwnode_handle *fwnode)
+fwnode_graph_get_remote_port_parent(const struct fwnode_handle *fwnode)
{
- struct fwnode_handle *parent = NULL;
+ struct fwnode_handle *endpoint, *parent;
- if (is_of_node(fwnode)) {
- struct device_node *node;
+ endpoint = fwnode_graph_get_remote_endpoint(fwnode);
+ parent = fwnode_graph_get_port_parent(endpoint);
- node = of_graph_get_remote_port_parent(to_of_node(fwnode));
- if (node)
- parent = &node->fwnode;
- } else if (is_acpi_node(fwnode)) {
- int ret;
-
- ret = acpi_graph_get_remote_endpoint(fwnode, &parent, NULL,
- NULL);
- if (ret)
- return NULL;
- }
+ fwnode_handle_put(endpoint);
return parent;
}
@@ -1255,25 +1260,10 @@ EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_port_parent);
*
* Extracts firmware node of a remote port the @fwnode points to.
*/
-struct fwnode_handle *fwnode_graph_get_remote_port(struct fwnode_handle *fwnode)
+struct fwnode_handle *
+fwnode_graph_get_remote_port(const struct fwnode_handle *fwnode)
{
- struct fwnode_handle *port = NULL;
-
- if (is_of_node(fwnode)) {
- struct device_node *node;
-
- node = of_graph_get_remote_port(to_of_node(fwnode));
- if (node)
- port = &node->fwnode;
- } else if (is_acpi_node(fwnode)) {
- int ret;
-
- ret = acpi_graph_get_remote_endpoint(fwnode, NULL, &port, NULL);
- if (ret)
- return NULL;
- }
-
- return port;
+ return fwnode_get_next_parent(fwnode_graph_get_remote_endpoint(fwnode));
}
EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_port);
@@ -1284,29 +1274,49 @@ EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_port);
* Extracts firmware node of a remote endpoint the @fwnode points to.
*/
struct fwnode_handle *
-fwnode_graph_get_remote_endpoint(struct fwnode_handle *fwnode)
+fwnode_graph_get_remote_endpoint(const struct fwnode_handle *fwnode)
{
- struct fwnode_handle *endpoint = NULL;
+ return fwnode_call_ptr_op(fwnode, graph_get_remote_endpoint);
+}
+EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_endpoint);
- if (is_of_node(fwnode)) {
- struct device_node *node;
+/**
+ * fwnode_graph_get_remote_node - get remote parent node for given port/endpoint
+ * @fwnode: pointer to parent fwnode_handle containing graph port/endpoint
+ * @port_id: identifier of the parent port node
+ * @endpoint_id: identifier of the endpoint node
+ *
+ * Return: Remote fwnode handle associated with remote endpoint node linked
+ * to @node. Use fwnode_node_put() on it when done.
+ */
+struct fwnode_handle *
+fwnode_graph_get_remote_node(const struct fwnode_handle *fwnode, u32 port_id,
+ u32 endpoint_id)
+{
+ struct fwnode_handle *endpoint = NULL;
- node = of_parse_phandle(to_of_node(fwnode), "remote-endpoint",
- 0);
- if (node)
- endpoint = &node->fwnode;
- } else if (is_acpi_node(fwnode)) {
+ while ((endpoint = fwnode_graph_get_next_endpoint(fwnode, endpoint))) {
+ struct fwnode_endpoint fwnode_ep;
+ struct fwnode_handle *remote;
int ret;
- ret = acpi_graph_get_remote_endpoint(fwnode, NULL, NULL,
- &endpoint);
- if (ret)
+ ret = fwnode_graph_parse_endpoint(endpoint, &fwnode_ep);
+ if (ret < 0)
+ continue;
+
+ if (fwnode_ep.port != port_id || fwnode_ep.id != endpoint_id)
+ continue;
+
+ remote = fwnode_graph_get_remote_port_parent(endpoint);
+ if (!remote)
return NULL;
+
+ return fwnode_device_is_available(remote) ? remote : NULL;
}
- return endpoint;
+ return NULL;
}
-EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_endpoint);
+EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_node);
/**
* fwnode_graph_parse_endpoint - parse common endpoint node properties
@@ -1317,25 +1327,11 @@ EXPORT_SYMBOL_GPL(fwnode_graph_get_remote_endpoint);
* information in @endpoint. The caller must hold a reference to
* @fwnode.
*/
-int fwnode_graph_parse_endpoint(struct fwnode_handle *fwnode,
+int fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode,
struct fwnode_endpoint *endpoint)
{
- struct fwnode_handle *port_fwnode = fwnode_get_parent(fwnode);
-
memset(endpoint, 0, sizeof(*endpoint));
- endpoint->local_fwnode = fwnode;
-
- if (is_acpi_node(port_fwnode)) {
- fwnode_property_read_u32(port_fwnode, "port", &endpoint->port);
- fwnode_property_read_u32(fwnode, "endpoint", &endpoint->id);
- } else {
- fwnode_property_read_u32(port_fwnode, "reg", &endpoint->port);
- fwnode_property_read_u32(fwnode, "reg", &endpoint->id);
- }
-
- fwnode_handle_put(port_fwnode);
-
- return 0;
+ return fwnode_call_int_op(fwnode, graph_parse_endpoint, endpoint);
}
EXPORT_SYMBOL(fwnode_graph_parse_endpoint);
diff --git a/drivers/base/regmap/Kconfig b/drivers/base/regmap/Kconfig
index db9d00c36a3e..073c0b77e5b3 100644
--- a/drivers/base/regmap/Kconfig
+++ b/drivers/base/regmap/Kconfig
@@ -3,10 +3,13 @@
# subsystems should select the appropriate symbols.
config REGMAP
- default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ)
+ default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_W1 || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ)
+ select IRQ_DOMAIN if REGMAP_IRQ
+ bool
+
+config REGCACHE_COMPRESSED
select LZO_COMPRESS
select LZO_DECOMPRESS
- select IRQ_DOMAIN if REGMAP_IRQ
bool
config REGMAP_AC97
@@ -24,6 +27,10 @@ config REGMAP_SPMI
tristate
depends on SPMI
+config REGMAP_W1
+ tristate
+ depends on W1
+
config REGMAP_MMIO
tristate
diff --git a/drivers/base/regmap/Makefile b/drivers/base/regmap/Makefile
index 609e4c84f485..0cf4abc8fbf1 100644
--- a/drivers/base/regmap/Makefile
+++ b/drivers/base/regmap/Makefile
@@ -2,7 +2,8 @@
CFLAGS_regmap.o := -I$(src)
obj-$(CONFIG_REGMAP) += regmap.o regcache.o
-obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-lzo.o regcache-flat.o
+obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-flat.o
+obj-$(CONFIG_REGCACHE_COMPRESSED) += regcache-lzo.o
obj-$(CONFIG_DEBUG_FS) += regmap-debugfs.o
obj-$(CONFIG_REGMAP_AC97) += regmap-ac97.o
obj-$(CONFIG_REGMAP_I2C) += regmap-i2c.o
@@ -10,3 +11,4 @@ obj-$(CONFIG_REGMAP_SPI) += regmap-spi.o
obj-$(CONFIG_REGMAP_SPMI) += regmap-spmi.o
obj-$(CONFIG_REGMAP_MMIO) += regmap-mmio.o
obj-$(CONFIG_REGMAP_IRQ) += regmap-irq.o
+obj-$(CONFIG_REGMAP_W1) += regmap-w1.o
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index b0a0dcf32fb7..773560348337 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -21,7 +21,9 @@
static const struct regcache_ops *cache_types[] = {
&regcache_rbtree_ops,
+#if IS_ENABLED(CONFIG_REGCACHE_COMPRESSED)
&regcache_lzo_ops,
+#endif
&regcache_flat_ops,
};
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index cd54189f2b1d..429ca8ed7e51 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -60,6 +60,16 @@ static void regmap_irq_lock(struct irq_data *data)
mutex_lock(&d->lock);
}
+static int regmap_irq_update_bits(struct regmap_irq_chip_data *d,
+ unsigned int reg, unsigned int mask,
+ unsigned int val)
+{
+ if (d->chip->mask_writeonly)
+ return regmap_write_bits(d->map, reg, mask, val);
+ else
+ return regmap_update_bits(d->map, reg, mask, val);
+}
+
static void regmap_irq_sync_unlock(struct irq_data *data)
{
struct regmap_irq_chip_data *d = irq_data_get_irq_chip_data(data);
@@ -84,11 +94,11 @@ static void regmap_irq_sync_unlock(struct irq_data *data)
reg = d->chip->mask_base +
(i * map->reg_stride * d->irq_reg_stride);
if (d->chip->mask_invert) {
- ret = regmap_update_bits(d->map, reg,
+ ret = regmap_irq_update_bits(d, reg,
d->mask_buf_def[i], ~d->mask_buf[i]);
} else if (d->chip->unmask_base) {
/* set mask with mask_base register */
- ret = regmap_update_bits(d->map, reg,
+ ret = regmap_irq_update_bits(d, reg,
d->mask_buf_def[i], ~d->mask_buf[i]);
if (ret < 0)
dev_err(d->map->dev,
@@ -97,12 +107,12 @@ static void regmap_irq_sync_unlock(struct irq_data *data)
unmask_offset = d->chip->unmask_base -
d->chip->mask_base;
/* clear mask with unmask_base register */
- ret = regmap_update_bits(d->map,
+ ret = regmap_irq_update_bits(d,
reg + unmask_offset,
d->mask_buf_def[i],
d->mask_buf[i]);
} else {
- ret = regmap_update_bits(d->map, reg,
+ ret = regmap_irq_update_bits(d, reg,
d->mask_buf_def[i], d->mask_buf[i]);
}
if (ret != 0)
@@ -113,11 +123,11 @@ static void regmap_irq_sync_unlock(struct irq_data *data)
(i * map->reg_stride * d->irq_reg_stride);
if (d->wake_buf) {
if (d->chip->wake_invert)
- ret = regmap_update_bits(d->map, reg,
+ ret = regmap_irq_update_bits(d, reg,
d->mask_buf_def[i],
~d->wake_buf[i]);
else
- ret = regmap_update_bits(d->map, reg,
+ ret = regmap_irq_update_bits(d, reg,
d->mask_buf_def[i],
d->wake_buf[i]);
if (ret != 0)
@@ -153,10 +163,10 @@ static void regmap_irq_sync_unlock(struct irq_data *data)
reg = d->chip->type_base +
(i * map->reg_stride * d->type_reg_stride);
if (d->chip->type_invert)
- ret = regmap_update_bits(d->map, reg,
+ ret = regmap_irq_update_bits(d, reg,
d->type_buf_def[i], ~d->type_buf[i]);
else
- ret = regmap_update_bits(d->map, reg,
+ ret = regmap_irq_update_bits(d, reg,
d->type_buf_def[i], d->type_buf[i]);
if (ret != 0)
dev_err(d->map->dev, "Failed to sync type in %x\n",
@@ -394,7 +404,7 @@ static int regmap_irq_map(struct irq_domain *h, unsigned int virq,
static const struct irq_domain_ops regmap_domain_ops = {
.map = regmap_irq_map,
- .xlate = irq_domain_xlate_twocell,
+ .xlate = irq_domain_xlate_onetwocell,
};
/**
@@ -519,17 +529,17 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
reg = chip->mask_base +
(i * map->reg_stride * d->irq_reg_stride);
if (chip->mask_invert)
- ret = regmap_update_bits(map, reg,
+ ret = regmap_irq_update_bits(d, reg,
d->mask_buf[i], ~d->mask_buf[i]);
else if (d->chip->unmask_base) {
unmask_offset = d->chip->unmask_base -
d->chip->mask_base;
- ret = regmap_update_bits(d->map,
+ ret = regmap_irq_update_bits(d,
reg + unmask_offset,
d->mask_buf[i],
d->mask_buf[i]);
} else
- ret = regmap_update_bits(map, reg,
+ ret = regmap_irq_update_bits(d, reg,
d->mask_buf[i], d->mask_buf[i]);
if (ret != 0) {
dev_err(map->dev, "Failed to set masks in 0x%x: %d\n",
@@ -575,11 +585,11 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
(i * map->reg_stride * d->irq_reg_stride);
if (chip->wake_invert)
- ret = regmap_update_bits(map, reg,
+ ret = regmap_irq_update_bits(d, reg,
d->mask_buf_def[i],
0);
else
- ret = regmap_update_bits(map, reg,
+ ret = regmap_irq_update_bits(d, reg,
d->mask_buf_def[i],
d->wake_buf[i]);
if (ret != 0) {
@@ -603,10 +613,10 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
reg = chip->type_base +
(i * map->reg_stride * d->type_reg_stride);
if (chip->type_invert)
- ret = regmap_update_bits(map, reg,
+ ret = regmap_irq_update_bits(d, reg,
d->type_buf_def[i], 0xFF);
else
- ret = regmap_update_bits(map, reg,
+ ret = regmap_irq_update_bits(d, reg,
d->type_buf_def[i], 0x0);
if (ret != 0) {
dev_err(map->dev,
diff --git a/drivers/base/regmap/regmap-w1.c b/drivers/base/regmap/regmap-w1.c
new file mode 100644
index 000000000000..e6c64b0be5b2
--- /dev/null
+++ b/drivers/base/regmap/regmap-w1.c
@@ -0,0 +1,245 @@
+/*
+ * Register map access API - W1 (1-Wire) support
+ *
+ * Copyright (c) 2017 Radioavionica Corporation
+ * Author: Alex A. Mihaylov <minimumlaw@rambler.ru>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation
+ */
+
+#include <linux/regmap.h>
+#include <linux/module.h>
+#include <linux/w1.h>
+
+#include "internal.h"
+
+#define W1_CMD_READ_DATA 0x69
+#define W1_CMD_WRITE_DATA 0x6C
+
+/*
+ * 1-Wire slaves registers with addess 8 bit and data 8 bit
+ */
+
+static int w1_reg_a8_v8_read(void *context, unsigned int reg, unsigned int *val)
+{
+ struct device *dev = context;
+ struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
+ int ret = 0;
+
+ if (reg > 255)
+ return -EINVAL;
+
+ mutex_lock(&sl->master->bus_mutex);
+ if (!w1_reset_select_slave(sl)) {
+ w1_write_8(sl->master, W1_CMD_READ_DATA);
+ w1_write_8(sl->master, reg);
+ *val = w1_read_8(sl->master);
+ } else {
+ ret = -ENODEV;
+ }
+ mutex_unlock(&sl->master->bus_mutex);
+
+ return ret;
+}
+
+static int w1_reg_a8_v8_write(void *context, unsigned int reg, unsigned int val)
+{
+ struct device *dev = context;
+ struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
+ int ret = 0;
+
+ if (reg > 255)
+ return -EINVAL;
+
+ mutex_lock(&sl->master->bus_mutex);
+ if (!w1_reset_select_slave(sl)) {
+ w1_write_8(sl->master, W1_CMD_WRITE_DATA);
+ w1_write_8(sl->master, reg);
+ w1_write_8(sl->master, val);
+ } else {
+ ret = -ENODEV;
+ }
+ mutex_unlock(&sl->master->bus_mutex);
+
+ return ret;
+}
+
+/*
+ * 1-Wire slaves registers with addess 8 bit and data 16 bit
+ */
+
+static int w1_reg_a8_v16_read(void *context, unsigned int reg,
+ unsigned int *val)
+{
+ struct device *dev = context;
+ struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
+ int ret = 0;
+
+ if (reg > 255)
+ return -EINVAL;
+
+ mutex_lock(&sl->master->bus_mutex);
+ if (!w1_reset_select_slave(sl)) {
+ w1_write_8(sl->master, W1_CMD_READ_DATA);
+ w1_write_8(sl->master, reg);
+ *val = w1_read_8(sl->master);
+ *val |= w1_read_8(sl->master)<<8;
+ } else {
+ ret = -ENODEV;
+ }
+ mutex_unlock(&sl->master->bus_mutex);
+
+ return ret;
+}
+
+static int w1_reg_a8_v16_write(void *context, unsigned int reg,
+ unsigned int val)
+{
+ struct device *dev = context;
+ struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
+ int ret = 0;
+
+ if (reg > 255)
+ return -EINVAL;
+
+ mutex_lock(&sl->master->bus_mutex);
+ if (!w1_reset_select_slave(sl)) {
+ w1_write_8(sl->master, W1_CMD_WRITE_DATA);
+ w1_write_8(sl->master, reg);
+ w1_write_8(sl->master, val & 0x00FF);
+ w1_write_8(sl->master, val>>8 & 0x00FF);
+ } else {
+ ret = -ENODEV;
+ }
+ mutex_unlock(&sl->master->bus_mutex);
+
+ return ret;
+}
+
+/*
+ * 1-Wire slaves registers with addess 16 bit and data 16 bit
+ */
+
+static int w1_reg_a16_v16_read(void *context, unsigned int reg,
+ unsigned int *val)
+{
+ struct device *dev = context;
+ struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
+ int ret = 0;
+
+ if (reg > 65535)
+ return -EINVAL;
+
+ mutex_lock(&sl->master->bus_mutex);
+ if (!w1_reset_select_slave(sl)) {
+ w1_write_8(sl->master, W1_CMD_READ_DATA);
+ w1_write_8(sl->master, reg & 0x00FF);
+ w1_write_8(sl->master, reg>>8 & 0x00FF);
+ *val = w1_read_8(sl->master);
+ *val |= w1_read_8(sl->master)<<8;
+ } else {
+ ret = -ENODEV;
+ }
+ mutex_unlock(&sl->master->bus_mutex);
+
+ return ret;
+}
+
+static int w1_reg_a16_v16_write(void *context, unsigned int reg,
+ unsigned int val)
+{
+ struct device *dev = context;
+ struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
+ int ret = 0;
+
+ if (reg > 65535)
+ return -EINVAL;
+
+ mutex_lock(&sl->master->bus_mutex);
+ if (!w1_reset_select_slave(sl)) {
+ w1_write_8(sl->master, W1_CMD_WRITE_DATA);
+ w1_write_8(sl->master, reg & 0x00FF);
+ w1_write_8(sl->master, reg>>8 & 0x00FF);
+ w1_write_8(sl->master, val & 0x00FF);
+ w1_write_8(sl->master, val>>8 & 0x00FF);
+ } else {
+ ret = -ENODEV;
+ }
+ mutex_unlock(&sl->master->bus_mutex);
+
+ return ret;
+}
+
+/*
+ * Various types of supported bus addressing
+ */
+
+static struct regmap_bus regmap_w1_bus_a8_v8 = {
+ .reg_read = w1_reg_a8_v8_read,
+ .reg_write = w1_reg_a8_v8_write,
+};
+
+static struct regmap_bus regmap_w1_bus_a8_v16 = {
+ .reg_read = w1_reg_a8_v16_read,
+ .reg_write = w1_reg_a8_v16_write,
+};
+
+static struct regmap_bus regmap_w1_bus_a16_v16 = {
+ .reg_read = w1_reg_a16_v16_read,
+ .reg_write = w1_reg_a16_v16_write,
+};
+
+static const struct regmap_bus *regmap_get_w1_bus(struct device *w1_dev,
+ const struct regmap_config *config)
+{
+ if (config->reg_bits == 8 && config->val_bits == 8)
+ return &regmap_w1_bus_a8_v8;
+
+ if (config->reg_bits == 8 && config->val_bits == 16)
+ return &regmap_w1_bus_a8_v16;
+
+ if (config->reg_bits == 16 && config->val_bits == 16)
+ return &regmap_w1_bus_a16_v16;
+
+ return ERR_PTR(-ENOTSUPP);
+}
+
+struct regmap *__regmap_init_w1(struct device *w1_dev,
+ const struct regmap_config *config,
+ struct lock_class_key *lock_key,
+ const char *lock_name)
+{
+
+ const struct regmap_bus *bus = regmap_get_w1_bus(w1_dev, config);
+
+ if (IS_ERR(bus))
+ return ERR_CAST(bus);
+
+ return __regmap_init(w1_dev, bus, w1_dev, config,
+ lock_key, lock_name);
+
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(__regmap_init_w1);
+
+struct regmap *__devm_regmap_init_w1(struct device *w1_dev,
+ const struct regmap_config *config,
+ struct lock_class_key *lock_key,
+ const char *lock_name)
+{
+
+ const struct regmap_bus *bus = regmap_get_w1_bus(w1_dev, config);
+
+ if (IS_ERR(bus))
+ return ERR_CAST(bus);
+
+ return __devm_regmap_init(w1_dev, bus, w1_dev, config,
+ lock_key, lock_name);
+
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(__devm_regmap_init_w1);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/base/topology.c b/drivers/base/topology.c
index d6ec1c546f5b..d936fcf9f1fb 100644
--- a/drivers/base/topology.c
+++ b/drivers/base/topology.c
@@ -105,7 +105,7 @@ static struct attribute *default_attrs[] = {
NULL
};
-static struct attribute_group topology_attr_group = {
+static const struct attribute_group topology_attr_group = {
.attrs = default_attrs,
.name = "topology"
};
diff --git a/drivers/bcma/Kconfig b/drivers/bcma/Kconfig
index b5c48a8d485f..54f81c554815 100644
--- a/drivers/bcma/Kconfig
+++ b/drivers/bcma/Kconfig
@@ -3,11 +3,8 @@ config BCMA_POSSIBLE
depends on HAS_IOMEM && HAS_DMA
default y
-menu "Broadcom specific AMBA"
- depends on BCMA_POSSIBLE
-
-config BCMA
- tristate "BCMA support"
+menuconfig BCMA
+ tristate "Broadcom specific AMBA"
depends on BCMA_POSSIBLE
help
Bus driver for Broadcom specific Advanced Microcontroller Bus
@@ -117,5 +114,3 @@ config BCMA_DEBUG
This turns on additional debugging messages.
If unsure, say N
-
-endmenu
diff --git a/drivers/bcma/driver_gpio.c b/drivers/bcma/driver_gpio.c
index 7bde8d7a2816..982d5781d3ce 100644
--- a/drivers/bcma/driver_gpio.c
+++ b/drivers/bcma/driver_gpio.c
@@ -191,6 +191,7 @@ int bcma_gpio_init(struct bcma_drv_cc *cc)
case BCMA_CHIP_ID_BCM4707:
case BCMA_CHIP_ID_BCM5357:
case BCMA_CHIP_ID_BCM53572:
+ case BCMA_CHIP_ID_BCM53573:
case BCMA_CHIP_ID_BCM47094:
chip->ngpio = 32;
break;
diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index 26a51be77227..255591ab3716 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -1678,9 +1678,12 @@ static bool DAC960_V1_ReadControllerConfiguration(DAC960_Controller_T
Enquiry2->FirmwareID.FirmwareType = '0';
Enquiry2->FirmwareID.TurnID = 0;
}
- sprintf(Controller->FirmwareVersion, "%d.%02d-%c-%02d",
- Enquiry2->FirmwareID.MajorVersion, Enquiry2->FirmwareID.MinorVersion,
- Enquiry2->FirmwareID.FirmwareType, Enquiry2->FirmwareID.TurnID);
+ snprintf(Controller->FirmwareVersion, sizeof(Controller->FirmwareVersion),
+ "%d.%02d-%c-%02d",
+ Enquiry2->FirmwareID.MajorVersion,
+ Enquiry2->FirmwareID.MinorVersion,
+ Enquiry2->FirmwareID.FirmwareType,
+ Enquiry2->FirmwareID.TurnID);
if (!((Controller->FirmwareVersion[0] == '5' &&
strcmp(Controller->FirmwareVersion, "5.06") >= 0) ||
(Controller->FirmwareVersion[0] == '4' &&
@@ -3464,7 +3467,7 @@ static inline bool DAC960_ProcessCompletedRequest(DAC960_Command_T *Command,
bool SuccessfulIO)
{
struct request *Request = Command->Request;
- int Error = SuccessfulIO ? 0 : -EIO;
+ blk_status_t Error = SuccessfulIO ? BLK_STS_OK : BLK_STS_IOERR;
pci_unmap_sg(Command->Controller->PCIDevice, Command->cmd_sglist,
Command->SegmentCount, Command->DmaDirection);
@@ -6588,7 +6591,8 @@ static void DAC960_CreateProcEntries(DAC960_Controller_T *Controller)
&dac960_proc_fops);
}
- sprintf(Controller->ControllerName, "c%d", Controller->ControllerNumber);
+ snprintf(Controller->ControllerName, sizeof(Controller->ControllerName),
+ "c%d", Controller->ControllerNumber);
ControllerProcEntry = proc_mkdir(Controller->ControllerName,
DAC960_ProcDirectoryEntry);
proc_create_data("initial_status", 0, ControllerProcEntry, &dac960_initial_status_proc_fops, Controller);
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index 8ddc98279c8f..2dfe99b328f8 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -17,6 +17,7 @@ if BLK_DEV
config BLK_DEV_NULL_BLK
tristate "Null test block driver"
+ select CONFIGFS_FS
config BLK_DEV_FD
tristate "Normal floppy disk support"
@@ -111,33 +112,6 @@ source "drivers/block/mtip32xx/Kconfig"
source "drivers/block/zram/Kconfig"
-config BLK_CPQ_CISS_DA
- tristate "Compaq Smart Array 5xxx support"
- depends on PCI
- select CHECK_SIGNATURE
- select BLK_SCSI_REQUEST
- help
- This is the driver for Compaq Smart Array 5xxx controllers.
- Everyone using these boards should say Y here.
- See <file:Documentation/blockdev/cciss.txt> for the current list of
- boards supported by this driver, and for further information
- on the use of this driver.
-
-config CISS_SCSI_TAPE
- bool "SCSI tape drive support for Smart Array 5xxx"
- depends on BLK_CPQ_CISS_DA && PROC_FS
- depends on SCSI=y || SCSI=BLK_CPQ_CISS_DA
- help
- When enabled (Y), this option allows SCSI tape drives and SCSI medium
- changers (tape robots) to be accessed via a Compaq 5xxx array
- controller. (See <file:Documentation/blockdev/cciss.txt> for more details.)
-
- "SCSI support" and "SCSI tape support" must also be enabled for this
- option to work.
-
- When this option is disabled (N), the SCSI portion of the driver
- is not compiled.
-
config BLK_DEV_DAC960
tristate "Mylex DAC960/DAC1100 PCI RAID Controller support"
depends on PCI
@@ -470,7 +444,7 @@ config VIRTIO_BLK
depends on VIRTIO
---help---
This is the virtual block driver for virtio. It can be used with
- lguest or QEMU based VMMs (like KVM or Xen). Say Y or M.
+ QEMU based VMMs (like KVM or Xen). Say Y or M.
config VIRTIO_BLK_SCSI
bool "SCSI passthrough request for the Virtio block driver"
diff --git a/drivers/block/Makefile b/drivers/block/Makefile
index ec8c36897b75..1f456d86a190 100644
--- a/drivers/block/Makefile
+++ b/drivers/block/Makefile
@@ -15,7 +15,6 @@ obj-$(CONFIG_ATARI_FLOPPY) += ataflop.o
obj-$(CONFIG_AMIGA_Z2RAM) += z2ram.o
obj-$(CONFIG_BLK_DEV_RAM) += brd.o
obj-$(CONFIG_BLK_DEV_LOOP) += loop.o
-obj-$(CONFIG_BLK_CPQ_CISS_DA) += cciss.o
obj-$(CONFIG_BLK_DEV_DAC960) += DAC960.o
obj-$(CONFIG_XILINX_SYSACE) += xsysace.o
obj-$(CONFIG_CDROM_PKTCDVD) += pktcdvd.o
diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c
index a328f673adfe..49908c74bfcb 100644
--- a/drivers/block/amiflop.c
+++ b/drivers/block/amiflop.c
@@ -1378,7 +1378,7 @@ static void redo_fd_request(void)
struct amiga_floppy_struct *floppy;
char *data;
unsigned long flags;
- int err;
+ blk_status_t err;
next_req:
rq = set_next_request();
@@ -1392,7 +1392,7 @@ next_req:
next_segment:
/* Here someone could investigate to be more efficient */
- for (cnt = 0, err = 0; cnt < blk_rq_cur_sectors(rq); cnt++) {
+ for (cnt = 0, err = BLK_STS_OK; cnt < blk_rq_cur_sectors(rq); cnt++) {
#ifdef DEBUG
printk("fd: sector %ld + %d requested for %s\n",
blk_rq_pos(rq), cnt,
@@ -1400,7 +1400,7 @@ next_segment:
#endif
block = blk_rq_pos(rq) + cnt;
if ((int)block > floppy->blocks) {
- err = -EIO;
+ err = BLK_STS_IOERR;
break;
}
@@ -1413,7 +1413,7 @@ next_segment:
#endif
if (get_track(drive, track) == -1) {
- err = -EIO;
+ err = BLK_STS_IOERR;
break;
}
@@ -1424,7 +1424,7 @@ next_segment:
/* keep the drive spinning while writes are scheduled */
if (!fd_motor_on(drive)) {
- err = -EIO;
+ err = BLK_STS_IOERR;
break;
}
/*
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 027b876370bc..6797e6c23c8a 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -388,6 +388,7 @@ aoeblk_gdalloc(void *vp)
d->aoemajor, d->aoeminor);
goto err_mempool;
}
+ blk_queue_bounce_limit(q, BLK_BOUNCE_HIGH);
spin_lock_irqsave(&d->lock, flags);
WARN_ON(!(d->flags & DEVFL_GD_NOW));
diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index 3c606c09fd5a..dc43254e05a4 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -1070,8 +1070,8 @@ aoe_end_request(struct aoedev *d, struct request *rq, int fastfail)
d->ip.rq = NULL;
do {
bio = rq->bio;
- bok = !fastfail && !bio->bi_error;
- } while (__blk_end_request(rq, bok ? 0 : -EIO, bio->bi_iter.bi_size));
+ bok = !fastfail && !bio->bi_status;
+ } while (__blk_end_request(rq, bok ? BLK_STS_OK : BLK_STS_IOERR, bio->bi_iter.bi_size));
/* cf. http://lkml.org/lkml/2006/10/31/28 */
if (!fastfail)
@@ -1131,7 +1131,7 @@ ktiocomplete(struct frame *f)
ahout->cmdstat, ahin->cmdstat,
d->aoemajor, d->aoeminor);
noskb: if (buf)
- buf->bio->bi_error = -EIO;
+ buf->bio->bi_status = BLK_STS_IOERR;
goto out;
}
@@ -1144,7 +1144,7 @@ noskb: if (buf)
"aoe: runt data size in read from",
(long) d->aoemajor, d->aoeminor,
skb->len, n);
- buf->bio->bi_error = -EIO;
+ buf->bio->bi_status = BLK_STS_IOERR;
break;
}
if (n > f->iter.bi_size) {
@@ -1152,7 +1152,7 @@ noskb: if (buf)
"aoe: too-large data size in read from",
(long) d->aoemajor, d->aoeminor,
n, f->iter.bi_size);
- buf->bio->bi_error = -EIO;
+ buf->bio->bi_status = BLK_STS_IOERR;
break;
}
bvcpy(skb, f->buf->bio, f->iter, n);
@@ -1654,7 +1654,7 @@ aoe_failbuf(struct aoedev *d, struct buf *buf)
if (buf == NULL)
return;
buf->iter.bi_size = 0;
- buf->bio->bi_error = -EIO;
+ buf->bio->bi_status = BLK_STS_IOERR;
if (buf->nframesout == 0)
aoe_end_buf(d, buf);
}
diff --git a/drivers/block/aoe/aoedev.c b/drivers/block/aoe/aoedev.c
index ffd1947500c6..b28fefb90391 100644
--- a/drivers/block/aoe/aoedev.c
+++ b/drivers/block/aoe/aoedev.c
@@ -170,7 +170,7 @@ aoe_failip(struct aoedev *d)
if (rq == NULL)
return;
while ((bio = d->ip.nxbio)) {
- bio->bi_error = -EIO;
+ bio->bi_status = BLK_STS_IOERR;
d->ip.nxbio = bio->bi_next;
n = (unsigned long) rq->special;
rq->special = (void *) --n;
diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index fa69ecd52cb5..92da886180aa 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -378,7 +378,7 @@ static DEFINE_TIMER(readtrack_timer, fd_readtrack_check, 0, 0);
static DEFINE_TIMER(timeout_timer, fd_times_out, 0, 0);
static DEFINE_TIMER(fd_timer, check_change, 0, 0);
-static void fd_end_request_cur(int err)
+static void fd_end_request_cur(blk_status_t err)
{
if (!__blk_end_request_cur(fd_request, err))
fd_request = NULL;
@@ -620,7 +620,7 @@ static void fd_error( void )
fd_request->error_count++;
if (fd_request->error_count >= MAX_ERRORS) {
printk(KERN_ERR "fd%d: too many errors.\n", SelectedDrive );
- fd_end_request_cur(-EIO);
+ fd_end_request_cur(BLK_STS_IOERR);
}
else if (fd_request->error_count == RECALIBRATE_ERRORS) {
printk(KERN_WARNING "fd%d: recalibrating\n", SelectedDrive );
@@ -739,7 +739,7 @@ static void do_fd_action( int drive )
}
else {
/* all sectors finished */
- fd_end_request_cur(0);
+ fd_end_request_cur(BLK_STS_OK);
redo_fd_request();
return;
}
@@ -1144,7 +1144,7 @@ static void fd_rwsec_done1(int status)
}
else {
/* all sectors finished */
- fd_end_request_cur(0);
+ fd_end_request_cur(BLK_STS_OK);
redo_fd_request();
}
return;
@@ -1445,7 +1445,7 @@ repeat:
if (!UD.connected) {
/* drive not connected */
printk(KERN_ERR "Unknown Device: fd%d\n", drive );
- fd_end_request_cur(-EIO);
+ fd_end_request_cur(BLK_STS_IOERR);
goto repeat;
}
@@ -1461,12 +1461,12 @@ repeat:
/* user supplied disk type */
if (--type >= NUM_DISK_MINORS) {
printk(KERN_WARNING "fd%d: invalid disk format", drive );
- fd_end_request_cur(-EIO);
+ fd_end_request_cur(BLK_STS_IOERR);
goto repeat;
}
if (minor2disktype[type].drive_types > DriveType) {
printk(KERN_WARNING "fd%d: unsupported disk format", drive );
- fd_end_request_cur(-EIO);
+ fd_end_request_cur(BLK_STS_IOERR);
goto repeat;
}
type = minor2disktype[type].index;
@@ -1476,7 +1476,7 @@ repeat:
}
if (blk_rq_pos(fd_request) + 1 > UDT->blocks) {
- fd_end_request_cur(-EIO);
+ fd_end_request_cur(BLK_STS_IOERR);
goto repeat;
}
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index 57b574f2f66a..2d7178f7754e 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -9,6 +9,7 @@
*/
#include <linux/init.h>
+#include <linux/initrd.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/major.h>
@@ -22,6 +23,7 @@
#ifdef CONFIG_BLK_DEV_RAM_DAX
#include <linux/pfn_t.h>
#include <linux/dax.h>
+#include <linux/uio.h>
#endif
#include <linux/uaccess.h>
@@ -292,14 +294,13 @@ out:
static blk_qc_t brd_make_request(struct request_queue *q, struct bio *bio)
{
- struct block_device *bdev = bio->bi_bdev;
- struct brd_device *brd = bdev->bd_disk->private_data;
+ struct brd_device *brd = bio->bi_disk->private_data;
struct bio_vec bvec;
sector_t sector;
struct bvec_iter iter;
sector = bio->bi_iter.bi_sector;
- if (bio_end_sector(bio) > get_capacity(bdev->bd_disk))
+ if (bio_end_sector(bio) > get_capacity(bio->bi_disk))
goto io_error;
bio_for_each_segment(bvec, bio, iter) {
@@ -324,7 +325,11 @@ static int brd_rw_page(struct block_device *bdev, sector_t sector,
struct page *page, bool is_write)
{
struct brd_device *brd = bdev->bd_disk->private_data;
- int err = brd_do_bvec(brd, page, PAGE_SIZE, 0, is_write, sector);
+ int err;
+
+ if (PageTransHuge(page))
+ return -ENOTSUPP;
+ err = brd_do_bvec(brd, page, PAGE_SIZE, 0, is_write, sector);
page_endio(page, is_write, err);
return err;
}
@@ -337,7 +342,7 @@ static long __brd_direct_access(struct brd_device *brd, pgoff_t pgoff,
if (!brd)
return -ENODEV;
- page = brd_insert_page(brd, PFN_PHYS(pgoff) / 512);
+ page = brd_insert_page(brd, (sector_t)pgoff << PAGE_SECTORS_SHIFT);
if (!page)
return -ENOSPC;
*kaddr = page_address(page);
@@ -354,8 +359,15 @@ static long brd_dax_direct_access(struct dax_device *dax_dev,
return __brd_direct_access(brd, pgoff, nr_pages, kaddr, pfn);
}
+static size_t brd_dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff,
+ void *addr, size_t bytes, struct iov_iter *i)
+{
+ return copy_from_iter(addr, bytes, i);
+}
+
static const struct dax_operations brd_dax_ops = {
.direct_access = brd_dax_direct_access,
+ .copy_from_iter = brd_dax_copy_from_iter,
};
#endif
@@ -418,7 +430,6 @@ static struct brd_device *brd_alloc(int i)
blk_queue_make_request(brd->brd_queue, brd_make_request);
blk_queue_max_hw_sectors(brd->brd_queue, 1024);
- blk_queue_bounce_limit(brd->brd_queue, BLK_BOUNCE_ANY);
/* This is so fdisk will align partitions on 4k, because of
* direct_access API needing 4k alignment, returning a PFN
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
deleted file mode 100644
index cd375503f7b0..000000000000
--- a/drivers/block/cciss.c
+++ /dev/null
@@ -1,5405 +0,0 @@
-/*
- * Disk Array driver for HP Smart Array controllers.
- * (C) Copyright 2000, 2007 Hewlett-Packard Development Company, L.P.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- * 02111-1307, USA.
- *
- * Questions/Comments/Bugfixes to iss_storagedev@hp.com
- *
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/pci-aspm.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/major.h>
-#include <linux/fs.h>
-#include <linux/bio.h>
-#include <linux/blkpg.h>
-#include <linux/timer.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/init.h>
-#include <linux/jiffies.h>
-#include <linux/hdreg.h>
-#include <linux/spinlock.h>
-#include <linux/compat.h>
-#include <linux/mutex.h>
-#include <linux/bitmap.h>
-#include <linux/io.h>
-#include <linux/uaccess.h>
-
-#include <linux/dma-mapping.h>
-#include <linux/blkdev.h>
-#include <linux/genhd.h>
-#include <linux/completion.h>
-#include <scsi/scsi.h>
-#include <scsi/sg.h>
-#include <scsi/scsi_ioctl.h>
-#include <scsi/scsi_request.h>
-#include <linux/cdrom.h>
-#include <linux/scatterlist.h>
-#include <linux/kthread.h>
-
-#define CCISS_DRIVER_VERSION(maj,min,submin) ((maj<<16)|(min<<8)|(submin))
-#define DRIVER_NAME "HP CISS Driver (v 3.6.26)"
-#define DRIVER_VERSION CCISS_DRIVER_VERSION(3, 6, 26)
-
-/* Embedded module documentation macros - see modules.h */
-MODULE_AUTHOR("Hewlett-Packard Company");
-MODULE_DESCRIPTION("Driver for HP Smart Array Controllers");
-MODULE_SUPPORTED_DEVICE("HP Smart Array Controllers");
-MODULE_VERSION("3.6.26");
-MODULE_LICENSE("GPL");
-static int cciss_tape_cmds = 6;
-module_param(cciss_tape_cmds, int, 0644);
-MODULE_PARM_DESC(cciss_tape_cmds,
- "number of commands to allocate for tape devices (default: 6)");
-static int cciss_simple_mode;
-module_param(cciss_simple_mode, int, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(cciss_simple_mode,
- "Use 'simple mode' rather than 'performant mode'");
-
-static int cciss_allow_hpsa;
-module_param(cciss_allow_hpsa, int, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(cciss_allow_hpsa,
- "Prevent cciss driver from accessing hardware known to be "
- " supported by the hpsa driver");
-
-static DEFINE_MUTEX(cciss_mutex);
-static struct proc_dir_entry *proc_cciss;
-
-#include "cciss_cmd.h"
-#include "cciss.h"
-#include <linux/cciss_ioctl.h>
-
-/* define the PCI info for the cards we can control */
-static const struct pci_device_id cciss_pci_device_id[] = {
- {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISS, 0x0E11, 0x4070},
- {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSB, 0x0E11, 0x4080},
- {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSB, 0x0E11, 0x4082},
- {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSB, 0x0E11, 0x4083},
- {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSC, 0x0E11, 0x4091},
- {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSC, 0x0E11, 0x409A},
- {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSC, 0x0E11, 0x409B},
- {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSC, 0x0E11, 0x409C},
- {PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_CISSC, 0x0E11, 0x409D},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSA, 0x103C, 0x3225},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSC, 0x103C, 0x3223},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSC, 0x103C, 0x3234},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSC, 0x103C, 0x3235},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD, 0x103C, 0x3211},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD, 0x103C, 0x3212},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD, 0x103C, 0x3213},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD, 0x103C, 0x3214},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD, 0x103C, 0x3215},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSC, 0x103C, 0x3237},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSC, 0x103C, 0x323D},
- {0,}
-};
-
-MODULE_DEVICE_TABLE(pci, cciss_pci_device_id);
-
-/* board_id = Subsystem Device ID & Vendor ID
- * product = Marketing Name for the board
- * access = Address of the struct of function pointers
- */
-static struct board_type products[] = {
- {0x40700E11, "Smart Array 5300", &SA5_access},
- {0x40800E11, "Smart Array 5i", &SA5B_access},
- {0x40820E11, "Smart Array 532", &SA5B_access},
- {0x40830E11, "Smart Array 5312", &SA5B_access},
- {0x409A0E11, "Smart Array 641", &SA5_access},
- {0x409B0E11, "Smart Array 642", &SA5_access},
- {0x409C0E11, "Smart Array 6400", &SA5_access},
- {0x409D0E11, "Smart Array 6400 EM", &SA5_access},
- {0x40910E11, "Smart Array 6i", &SA5_access},
- {0x3225103C, "Smart Array P600", &SA5_access},
- {0x3223103C, "Smart Array P800", &SA5_access},
- {0x3234103C, "Smart Array P400", &SA5_access},
- {0x3235103C, "Smart Array P400i", &SA5_access},
- {0x3211103C, "Smart Array E200i", &SA5_access},
- {0x3212103C, "Smart Array E200", &SA5_access},
- {0x3213103C, "Smart Array E200i", &SA5_access},
- {0x3214103C, "Smart Array E200i", &SA5_access},
- {0x3215103C, "Smart Array E200i", &SA5_access},
- {0x3237103C, "Smart Array E500", &SA5_access},
- {0x323D103C, "Smart Array P700m", &SA5_access},
-};
-
-/* How long to wait (in milliseconds) for board to go into simple mode */
-#define MAX_CONFIG_WAIT 30000
-#define MAX_IOCTL_CONFIG_WAIT 1000
-
-/*define how many times we will try a command because of bus resets */
-#define MAX_CMD_RETRIES 3
-
-#define MAX_CTLR 32
-
-/* Originally cciss driver only supports 8 major numbers */
-#define MAX_CTLR_ORIG 8
-
-static ctlr_info_t *hba[MAX_CTLR];
-
-static struct task_struct *cciss_scan_thread;
-static DEFINE_MUTEX(scan_mutex);
-static LIST_HEAD(scan_q);
-
-static void do_cciss_request(struct request_queue *q);
-static irqreturn_t do_cciss_intx(int irq, void *dev_id);
-static irqreturn_t do_cciss_msix_intr(int irq, void *dev_id);
-static int cciss_open(struct block_device *bdev, fmode_t mode);
-static int cciss_unlocked_open(struct block_device *bdev, fmode_t mode);
-static void cciss_release(struct gendisk *disk, fmode_t mode);
-static int cciss_ioctl(struct block_device *bdev, fmode_t mode,
- unsigned int cmd, unsigned long arg);
-static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo);
-
-static int cciss_revalidate(struct gendisk *disk);
-static int rebuild_lun_table(ctlr_info_t *h, int first_time, int via_ioctl);
-static int deregister_disk(ctlr_info_t *h, int drv_index,
- int clear_all, int via_ioctl);
-
-static void cciss_read_capacity(ctlr_info_t *h, int logvol,
- sector_t *total_size, unsigned int *block_size);
-static void cciss_read_capacity_16(ctlr_info_t *h, int logvol,
- sector_t *total_size, unsigned int *block_size);
-static void cciss_geometry_inquiry(ctlr_info_t *h, int logvol,
- sector_t total_size,
- unsigned int block_size, InquiryData_struct *inq_buff,
- drive_info_struct *drv);
-static void cciss_interrupt_mode(ctlr_info_t *);
-static int cciss_enter_simple_mode(struct ctlr_info *h);
-static void start_io(ctlr_info_t *h);
-static int sendcmd_withirq(ctlr_info_t *h, __u8 cmd, void *buff, size_t size,
- __u8 page_code, unsigned char scsi3addr[],
- int cmd_type);
-static int sendcmd_withirq_core(ctlr_info_t *h, CommandList_struct *c,
- int attempt_retry);
-static int process_sendcmd_error(ctlr_info_t *h, CommandList_struct *c);
-
-static int add_to_scan_list(struct ctlr_info *h);
-static int scan_thread(void *data);
-static int check_for_unit_attention(ctlr_info_t *h, CommandList_struct *c);
-static void cciss_hba_release(struct device *dev);
-static void cciss_device_release(struct device *dev);
-static void cciss_free_gendisk(ctlr_info_t *h, int drv_index);
-static void cciss_free_drive_info(ctlr_info_t *h, int drv_index);
-static inline u32 next_command(ctlr_info_t *h);
-static int cciss_find_cfg_addrs(struct pci_dev *pdev, void __iomem *vaddr,
- u32 *cfg_base_addr, u64 *cfg_base_addr_index,
- u64 *cfg_offset);
-static int cciss_pci_find_memory_BAR(struct pci_dev *pdev,
- unsigned long *memory_bar);
-static inline u32 cciss_tag_discard_error_bits(ctlr_info_t *h, u32 tag);
-static int write_driver_ver_to_cfgtable(CfgTable_struct __iomem *cfgtable);
-
-/* performant mode helper functions */
-static void calc_bucket_map(int *bucket, int num_buckets, int nsgs,
- int *bucket_map);
-static void cciss_put_controller_into_performant_mode(ctlr_info_t *h);
-
-#ifdef CONFIG_PROC_FS
-static void cciss_procinit(ctlr_info_t *h);
-#else
-static void cciss_procinit(ctlr_info_t *h)
-{
-}
-#endif /* CONFIG_PROC_FS */
-
-#ifdef CONFIG_COMPAT
-static int cciss_compat_ioctl(struct block_device *, fmode_t,
- unsigned, unsigned long);
-#endif
-
-static const struct block_device_operations cciss_fops = {
- .owner = THIS_MODULE,
- .open = cciss_unlocked_open,
- .release = cciss_release,
- .ioctl = cciss_ioctl,
- .getgeo = cciss_getgeo,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = cciss_compat_ioctl,
-#endif
- .revalidate_disk = cciss_revalidate,
-};
-
-/* set_performant_mode: Modify the tag for cciss performant
- * set bit 0 for pull model, bits 3-1 for block fetch
- * register number
- */
-static void set_performant_mode(ctlr_info_t *h, CommandList_struct *c)
-{
- if (likely(h->transMethod & CFGTBL_Trans_Performant))
- c->busaddr |= 1 | (h->blockFetchTable[c->Header.SGList] << 1);
-}
-
-/*
- * Enqueuing and dequeuing functions for cmdlists.
- */
-static inline void addQ(struct list_head *list, CommandList_struct *c)
-{
- list_add_tail(&c->list, list);
-}
-
-static inline void removeQ(CommandList_struct *c)
-{
- /*
- * After kexec/dump some commands might still
- * be in flight, which the firmware will try
- * to complete. Resetting the firmware doesn't work
- * with old fw revisions, so we have to mark
- * them off as 'stale' to prevent the driver from
- * falling over.
- */
- if (WARN_ON(list_empty(&c->list))) {
- c->cmd_type = CMD_MSG_STALE;
- return;
- }
-
- list_del_init(&c->list);
-}
-
-static void enqueue_cmd_and_start_io(ctlr_info_t *h,
- CommandList_struct *c)
-{
- unsigned long flags;
- set_performant_mode(h, c);
- spin_lock_irqsave(&h->lock, flags);
- addQ(&h->reqQ, c);
- h->Qdepth++;
- if (h->Qdepth > h->maxQsinceinit)
- h->maxQsinceinit = h->Qdepth;
- start_io(h);
- spin_unlock_irqrestore(&h->lock, flags);
-}
-
-static void cciss_free_sg_chain_blocks(SGDescriptor_struct **cmd_sg_list,
- int nr_cmds)
-{
- int i;
-
- if (!cmd_sg_list)
- return;
- for (i = 0; i < nr_cmds; i++) {
- kfree(cmd_sg_list[i]);
- cmd_sg_list[i] = NULL;
- }
- kfree(cmd_sg_list);
-}
-
-static SGDescriptor_struct **cciss_allocate_sg_chain_blocks(
- ctlr_info_t *h, int chainsize, int nr_cmds)
-{
- int j;
- SGDescriptor_struct **cmd_sg_list;
-
- if (chainsize <= 0)
- return NULL;
-
- cmd_sg_list = kmalloc(sizeof(*cmd_sg_list) * nr_cmds, GFP_KERNEL);
- if (!cmd_sg_list)
- return NULL;
-
- /* Build up chain blocks for each command */
- for (j = 0; j < nr_cmds; j++) {
- /* Need a block of chainsized s/g elements. */
- cmd_sg_list[j] = kmalloc((chainsize *
- sizeof(*cmd_sg_list[j])), GFP_KERNEL);
- if (!cmd_sg_list[j]) {
- dev_err(&h->pdev->dev, "Cannot get memory "
- "for s/g chains.\n");
- goto clean;
- }
- }
- return cmd_sg_list;
-clean:
- cciss_free_sg_chain_blocks(cmd_sg_list, nr_cmds);
- return NULL;
-}
-
-static void cciss_unmap_sg_chain_block(ctlr_info_t *h, CommandList_struct *c)
-{
- SGDescriptor_struct *chain_sg;
- u64bit temp64;
-
- if (c->Header.SGTotal <= h->max_cmd_sgentries)
- return;
-
- chain_sg = &c->SG[h->max_cmd_sgentries - 1];
- temp64.val32.lower = chain_sg->Addr.lower;
- temp64.val32.upper = chain_sg->Addr.upper;
- pci_unmap_single(h->pdev, temp64.val, chain_sg->Len, PCI_DMA_TODEVICE);
-}
-
-static int cciss_map_sg_chain_block(ctlr_info_t *h, CommandList_struct *c,
- SGDescriptor_struct *chain_block, int len)
-{
- SGDescriptor_struct *chain_sg;
- u64bit temp64;
-
- chain_sg = &c->SG[h->max_cmd_sgentries - 1];
- chain_sg->Ext = CCISS_SG_CHAIN;
- chain_sg->Len = len;
- temp64.val = pci_map_single(h->pdev, chain_block, len,
- PCI_DMA_TODEVICE);
- if (dma_mapping_error(&h->pdev->dev, temp64.val)) {
- dev_warn(&h->pdev->dev,
- "%s: error mapping chain block for DMA\n",
- __func__);
- return -1;
- }
- chain_sg->Addr.lower = temp64.val32.lower;
- chain_sg->Addr.upper = temp64.val32.upper;
-
- return 0;
-}
-
-#include "cciss_scsi.c" /* For SCSI tape support */
-
-static const char *raid_label[] = { "0", "4", "1(1+0)", "5", "5+1", "ADG",
- "UNKNOWN"
-};
-#define RAID_UNKNOWN (ARRAY_SIZE(raid_label)-1)
-
-#ifdef CONFIG_PROC_FS
-
-/*
- * Report information about this controller.
- */
-#define ENG_GIG 1000000000
-#define ENG_GIG_FACTOR (ENG_GIG/512)
-#define ENGAGE_SCSI "engage scsi"
-
-static void cciss_seq_show_header(struct seq_file *seq)
-{
- ctlr_info_t *h = seq->private;
-
- seq_printf(seq, "%s: HP %s Controller\n"
- "Board ID: 0x%08lx\n"
- "Firmware Version: %c%c%c%c\n"
- "IRQ: %d\n"
- "Logical drives: %d\n"
- "Current Q depth: %d\n"
- "Current # commands on controller: %d\n"
- "Max Q depth since init: %d\n"
- "Max # commands on controller since init: %d\n"
- "Max SG entries since init: %d\n",
- h->devname,
- h->product_name,
- (unsigned long)h->board_id,
- h->firm_ver[0], h->firm_ver[1], h->firm_ver[2],
- h->firm_ver[3], (unsigned int)h->intr[h->intr_mode],
- h->num_luns,
- h->Qdepth, h->commands_outstanding,
- h->maxQsinceinit, h->max_outstanding, h->maxSG);
-
-#ifdef CONFIG_CISS_SCSI_TAPE
- cciss_seq_tape_report(seq, h);
-#endif /* CONFIG_CISS_SCSI_TAPE */
-}
-
-static void *cciss_seq_start(struct seq_file *seq, loff_t *pos)
-{
- ctlr_info_t *h = seq->private;
- unsigned long flags;
-
- /* prevent displaying bogus info during configuration
- * or deconfiguration of a logical volume
- */
- spin_lock_irqsave(&h->lock, flags);
- if (h->busy_configuring) {
- spin_unlock_irqrestore(&h->lock, flags);
- return ERR_PTR(-EBUSY);
- }
- h->busy_configuring = 1;
- spin_unlock_irqrestore(&h->lock, flags);
-
- if (*pos == 0)
- cciss_seq_show_header(seq);
-
- return pos;
-}
-
-static int cciss_seq_show(struct seq_file *seq, void *v)
-{
- sector_t vol_sz, vol_sz_frac;
- ctlr_info_t *h = seq->private;
- unsigned ctlr = h->ctlr;
- loff_t *pos = v;
- drive_info_struct *drv = h->drv[*pos];
-
- if (*pos > h->highest_lun)
- return 0;
-
- if (drv == NULL) /* it's possible for h->drv[] to have holes. */
- return 0;
-
- if (drv->heads == 0)
- return 0;
-
- vol_sz = drv->nr_blocks;
- vol_sz_frac = sector_div(vol_sz, ENG_GIG_FACTOR);
- vol_sz_frac *= 100;
- sector_div(vol_sz_frac, ENG_GIG_FACTOR);
-
- if (drv->raid_level < 0 || drv->raid_level > RAID_UNKNOWN)
- drv->raid_level = RAID_UNKNOWN;
- seq_printf(seq, "cciss/c%dd%d:"
- "\t%4u.%02uGB\tRAID %s\n",
- ctlr, (int) *pos, (int)vol_sz, (int)vol_sz_frac,
- raid_label[drv->raid_level]);
- return 0;
-}
-
-static void *cciss_seq_next(struct seq_file *seq, void *v, loff_t *pos)
-{
- ctlr_info_t *h = seq->private;
-
- if (*pos > h->highest_lun)
- return NULL;
- *pos += 1;
-
- return pos;
-}
-
-static void cciss_seq_stop(struct seq_file *seq, void *v)
-{
- ctlr_info_t *h = seq->private;
-
- /* Only reset h->busy_configuring if we succeeded in setting
- * it during cciss_seq_start. */
- if (v == ERR_PTR(-EBUSY))
- return;
-
- h->busy_configuring = 0;
-}
-
-static const struct seq_operations cciss_seq_ops = {
- .start = cciss_seq_start,
- .show = cciss_seq_show,
- .next = cciss_seq_next,
- .stop = cciss_seq_stop,
-};
-
-static int cciss_seq_open(struct inode *inode, struct file *file)
-{
- int ret = seq_open(file, &cciss_seq_ops);
- struct seq_file *seq = file->private_data;
-
- if (!ret)
- seq->private = PDE_DATA(inode);
-
- return ret;
-}
-
-static ssize_t
-cciss_proc_write(struct file *file, const char __user *buf,
- size_t length, loff_t *ppos)
-{
- int err;
- char *buffer;
-
-#ifndef CONFIG_CISS_SCSI_TAPE
- return -EINVAL;
-#endif
-
- if (!buf || length > PAGE_SIZE - 1)
- return -EINVAL;
-
- buffer = memdup_user_nul(buf, length);
- if (IS_ERR(buffer))
- return PTR_ERR(buffer);
-
-#ifdef CONFIG_CISS_SCSI_TAPE
- if (strncmp(ENGAGE_SCSI, buffer, sizeof ENGAGE_SCSI - 1) == 0) {
- struct seq_file *seq = file->private_data;
- ctlr_info_t *h = seq->private;
-
- err = cciss_engage_scsi(h);
- if (err == 0)
- err = length;
- } else
-#endif /* CONFIG_CISS_SCSI_TAPE */
- err = -EINVAL;
- /* might be nice to have "disengage" too, but it's not
- safely possible. (only 1 module use count, lock issues.) */
-
- kfree(buffer);
- return err;
-}
-
-static const struct file_operations cciss_proc_fops = {
- .owner = THIS_MODULE,
- .open = cciss_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
- .write = cciss_proc_write,
-};
-
-static void cciss_procinit(ctlr_info_t *h)
-{
- struct proc_dir_entry *pde;
-
- if (proc_cciss == NULL)
- proc_cciss = proc_mkdir("driver/cciss", NULL);
- if (!proc_cciss)
- return;
- pde = proc_create_data(h->devname, S_IWUSR | S_IRUSR | S_IRGRP |
- S_IROTH, proc_cciss,
- &cciss_proc_fops, h);
-}
-#endif /* CONFIG_PROC_FS */
-
-#define MAX_PRODUCT_NAME_LEN 19
-
-#define to_hba(n) container_of(n, struct ctlr_info, dev)
-#define to_drv(n) container_of(n, drive_info_struct, dev)
-
-/* List of controllers which cannot be hard reset on kexec with reset_devices */
-static u32 unresettable_controller[] = {
- 0x3223103C, /* Smart Array P800 */
- 0x3234103C, /* Smart Array P400 */
- 0x3235103C, /* Smart Array P400i */
- 0x3211103C, /* Smart Array E200i */
- 0x3212103C, /* Smart Array E200 */
- 0x3213103C, /* Smart Array E200i */
- 0x3214103C, /* Smart Array E200i */
- 0x3215103C, /* Smart Array E200i */
- 0x3237103C, /* Smart Array E500 */
- 0x323D103C, /* Smart Array P700m */
- 0x40800E11, /* Smart Array 5i */
- 0x409C0E11, /* Smart Array 6400 */
- 0x409D0E11, /* Smart Array 6400 EM */
- 0x40700E11, /* Smart Array 5300 */
- 0x40820E11, /* Smart Array 532 */
- 0x40830E11, /* Smart Array 5312 */
- 0x409A0E11, /* Smart Array 641 */
- 0x409B0E11, /* Smart Array 642 */
- 0x40910E11, /* Smart Array 6i */
-};
-
-/* List of controllers which cannot even be soft reset */
-static u32 soft_unresettable_controller[] = {
- 0x40800E11, /* Smart Array 5i */
- 0x40700E11, /* Smart Array 5300 */
- 0x40820E11, /* Smart Array 532 */
- 0x40830E11, /* Smart Array 5312 */
- 0x409A0E11, /* Smart Array 641 */
- 0x409B0E11, /* Smart Array 642 */
- 0x40910E11, /* Smart Array 6i */
- /* Exclude 640x boards. These are two pci devices in one slot
- * which share a battery backed cache module. One controls the
- * cache, the other accesses the cache through the one that controls
- * it. If we reset the one controlling the cache, the other will
- * likely not be happy. Just forbid resetting this conjoined mess.
- */
- 0x409C0E11, /* Smart Array 6400 */
- 0x409D0E11, /* Smart Array 6400 EM */
-};
-
-static int ctlr_is_hard_resettable(u32 board_id)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(unresettable_controller); i++)
- if (unresettable_controller[i] == board_id)
- return 0;
- return 1;
-}
-
-static int ctlr_is_soft_resettable(u32 board_id)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(soft_unresettable_controller); i++)
- if (soft_unresettable_controller[i] == board_id)
- return 0;
- return 1;
-}
-
-static int ctlr_is_resettable(u32 board_id)
-{
- return ctlr_is_hard_resettable(board_id) ||
- ctlr_is_soft_resettable(board_id);
-}
-
-static ssize_t host_show_resettable(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct ctlr_info *h = to_hba(dev);
-
- return snprintf(buf, 20, "%d\n", ctlr_is_resettable(h->board_id));
-}
-static DEVICE_ATTR(resettable, S_IRUGO, host_show_resettable, NULL);
-
-static ssize_t host_store_rescan(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct ctlr_info *h = to_hba(dev);
-
- add_to_scan_list(h);
- wake_up_process(cciss_scan_thread);
- wait_for_completion_interruptible(&h->scan_wait);
-
- return count;
-}
-static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan);
-
-static ssize_t host_show_transport_mode(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct ctlr_info *h = to_hba(dev);
-
- return snprintf(buf, 20, "%s\n",
- h->transMethod & CFGTBL_Trans_Performant ?
- "performant" : "simple");
-}
-static DEVICE_ATTR(transport_mode, S_IRUGO, host_show_transport_mode, NULL);
-
-static ssize_t dev_show_unique_id(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- drive_info_struct *drv = to_drv(dev);
- struct ctlr_info *h = to_hba(drv->dev.parent);
- __u8 sn[16];
- unsigned long flags;
- int ret = 0;
-
- spin_lock_irqsave(&h->lock, flags);
- if (h->busy_configuring)
- ret = -EBUSY;
- else
- memcpy(sn, drv->serial_no, sizeof(sn));
- spin_unlock_irqrestore(&h->lock, flags);
-
- if (ret)
- return ret;
- else
- return snprintf(buf, 16 * 2 + 2,
- "%02X%02X%02X%02X%02X%02X%02X%02X"
- "%02X%02X%02X%02X%02X%02X%02X%02X\n",
- sn[0], sn[1], sn[2], sn[3],
- sn[4], sn[5], sn[6], sn[7],
- sn[8], sn[9], sn[10], sn[11],
- sn[12], sn[13], sn[14], sn[15]);
-}
-static DEVICE_ATTR(unique_id, S_IRUGO, dev_show_unique_id, NULL);
-
-static ssize_t dev_show_vendor(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- drive_info_struct *drv = to_drv(dev);
- struct ctlr_info *h = to_hba(drv->dev.parent);
- char vendor[VENDOR_LEN + 1];
- unsigned long flags;
- int ret = 0;
-
- spin_lock_irqsave(&h->lock, flags);
- if (h->busy_configuring)
- ret = -EBUSY;
- else
- memcpy(vendor, drv->vendor, VENDOR_LEN + 1);
- spin_unlock_irqrestore(&h->lock, flags);
-
- if (ret)
- return ret;
- else
- return snprintf(buf, sizeof(vendor) + 1, "%s\n", drv->vendor);
-}
-static DEVICE_ATTR(vendor, S_IRUGO, dev_show_vendor, NULL);
-
-static ssize_t dev_show_model(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- drive_info_struct *drv = to_drv(dev);
- struct ctlr_info *h = to_hba(drv->dev.parent);
- char model[MODEL_LEN + 1];
- unsigned long flags;
- int ret = 0;
-
- spin_lock_irqsave(&h->lock, flags);
- if (h->busy_configuring)
- ret = -EBUSY;
- else
- memcpy(model, drv->model, MODEL_LEN + 1);
- spin_unlock_irqrestore(&h->lock, flags);
-
- if (ret)
- return ret;
- else
- return snprintf(buf, sizeof(model) + 1, "%s\n", drv->model);
-}
-static DEVICE_ATTR(model, S_IRUGO, dev_show_model, NULL);
-
-static ssize_t dev_show_rev(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- drive_info_struct *drv = to_drv(dev);
- struct ctlr_info *h = to_hba(drv->dev.parent);
- char rev[REV_LEN + 1];
- unsigned long flags;
- int ret = 0;
-
- spin_lock_irqsave(&h->lock, flags);
- if (h->busy_configuring)
- ret = -EBUSY;
- else
- memcpy(rev, drv->rev, REV_LEN + 1);
- spin_unlock_irqrestore(&h->lock, flags);
-
- if (ret)
- return ret;
- else
- return snprintf(buf, sizeof(rev) + 1, "%s\n", drv->rev);
-}
-static DEVICE_ATTR(rev, S_IRUGO, dev_show_rev, NULL);
-
-static ssize_t cciss_show_lunid(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- drive_info_struct *drv = to_drv(dev);
- struct ctlr_info *h = to_hba(drv->dev.parent);
- unsigned long flags;
- unsigned char lunid[8];
-
- spin_lock_irqsave(&h->lock, flags);
- if (h->busy_configuring) {
- spin_unlock_irqrestore(&h->lock, flags);
- return -EBUSY;
- }
- if (!drv->heads) {
- spin_unlock_irqrestore(&h->lock, flags);
- return -ENOTTY;
- }
- memcpy(lunid, drv->LunID, sizeof(lunid));
- spin_unlock_irqrestore(&h->lock, flags);
- return snprintf(buf, 20, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
- lunid[0], lunid[1], lunid[2], lunid[3],
- lunid[4], lunid[5], lunid[6], lunid[7]);
-}
-static DEVICE_ATTR(lunid, S_IRUGO, cciss_show_lunid, NULL);
-
-static ssize_t cciss_show_raid_level(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- drive_info_struct *drv = to_drv(dev);
- struct ctlr_info *h = to_hba(drv->dev.parent);
- int raid;
- unsigned long flags;
-
- spin_lock_irqsave(&h->lock, flags);
- if (h->busy_configuring) {
- spin_unlock_irqrestore(&h->lock, flags);
- return -EBUSY;
- }
- raid = drv->raid_level;
- spin_unlock_irqrestore(&h->lock, flags);
- if (raid < 0 || raid > RAID_UNKNOWN)
- raid = RAID_UNKNOWN;
-
- return snprintf(buf, strlen(raid_label[raid]) + 7, "RAID %s\n",
- raid_label[raid]);
-}
-static DEVICE_ATTR(raid_level, S_IRUGO, cciss_show_raid_level, NULL);
-
-static ssize_t cciss_show_usage_count(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- drive_info_struct *drv = to_drv(dev);
- struct ctlr_info *h = to_hba(drv->dev.parent);
- unsigned long flags;
- int count;
-
- spin_lock_irqsave(&h->lock, flags);
- if (h->busy_configuring) {
- spin_unlock_irqrestore(&h->lock, flags);
- return -EBUSY;
- }
- count = drv->usage_count;
- spin_unlock_irqrestore(&h->lock, flags);
- return snprintf(buf, 20, "%d\n", count);
-}
-static DEVICE_ATTR(usage_count, S_IRUGO, cciss_show_usage_count, NULL);
-
-static struct attribute *cciss_host_attrs[] = {
- &dev_attr_rescan.attr,
- &dev_attr_resettable.attr,
- &dev_attr_transport_mode.attr,
- NULL
-};
-
-static struct attribute_group cciss_host_attr_group = {
- .attrs = cciss_host_attrs,
-};
-
-static const struct attribute_group *cciss_host_attr_groups[] = {
- &cciss_host_attr_group,
- NULL
-};
-
-static struct device_type cciss_host_type = {
- .name = "cciss_host",
- .groups = cciss_host_attr_groups,
- .release = cciss_hba_release,
-};
-
-static struct attribute *cciss_dev_attrs[] = {
- &dev_attr_unique_id.attr,
- &dev_attr_model.attr,
- &dev_attr_vendor.attr,
- &dev_attr_rev.attr,
- &dev_attr_lunid.attr,
- &dev_attr_raid_level.attr,
- &dev_attr_usage_count.attr,
- NULL
-};
-
-static struct attribute_group cciss_dev_attr_group = {
- .attrs = cciss_dev_attrs,
-};
-
-static const struct attribute_group *cciss_dev_attr_groups[] = {
- &cciss_dev_attr_group,
- NULL
-};
-
-static struct device_type cciss_dev_type = {
- .name = "cciss_device",
- .groups = cciss_dev_attr_groups,
- .release = cciss_device_release,
-};
-
-static struct bus_type cciss_bus_type = {
- .name = "cciss",
-};
-
-/*
- * cciss_hba_release is called when the reference count
- * of h->dev goes to zero.
- */
-static void cciss_hba_release(struct device *dev)
-{
- /*
- * nothing to do, but need this to avoid a warning
- * about not having a release handler from lib/kref.c.
- */
-}
-
-/*
- * Initialize sysfs entry for each controller. This sets up and registers
- * the 'cciss#' directory for each individual controller under
- * /sys/bus/pci/devices/<dev>/.
- */
-static int cciss_create_hba_sysfs_entry(struct ctlr_info *h)
-{
- device_initialize(&h->dev);
- h->dev.type = &cciss_host_type;
- h->dev.bus = &cciss_bus_type;
- dev_set_name(&h->dev, "%s", h->devname);
- h->dev.parent = &h->pdev->dev;
-
- return device_add(&h->dev);
-}
-
-/*
- * Remove sysfs entries for an hba.
- */
-static void cciss_destroy_hba_sysfs_entry(struct ctlr_info *h)
-{
- device_del(&h->dev);
- put_device(&h->dev); /* final put. */
-}
-
-/* cciss_device_release is called when the reference count
- * of h->drv[x]dev goes to zero.
- */
-static void cciss_device_release(struct device *dev)
-{
- drive_info_struct *drv = to_drv(dev);
- kfree(drv);
-}
-
-/*
- * Initialize sysfs for each logical drive. This sets up and registers
- * the 'c#d#' directory for each individual logical drive under
- * /sys/bus/pci/devices/<dev/ccis#/. We also create a link from
- * /sys/block/cciss!c#d# to this entry.
- */
-static long cciss_create_ld_sysfs_entry(struct ctlr_info *h,
- int drv_index)
-{
- struct device *dev;
-
- if (h->drv[drv_index]->device_initialized)
- return 0;
-
- dev = &h->drv[drv_index]->dev;
- device_initialize(dev);
- dev->type = &cciss_dev_type;
- dev->bus = &cciss_bus_type;
- dev_set_name(dev, "c%dd%d", h->ctlr, drv_index);
- dev->parent = &h->dev;
- h->drv[drv_index]->device_initialized = 1;
- return device_add(dev);
-}
-
-/*
- * Remove sysfs entries for a logical drive.
- */
-static void cciss_destroy_ld_sysfs_entry(struct ctlr_info *h, int drv_index,
- int ctlr_exiting)
-{
- struct device *dev = &h->drv[drv_index]->dev;
-
- /* special case for c*d0, we only destroy it on controller exit */
- if (drv_index == 0 && !ctlr_exiting)
- return;
-
- device_del(dev);
- put_device(dev); /* the "final" put. */
- h->drv[drv_index] = NULL;
-}
-
-/*
- * For operations that cannot sleep, a command block is allocated at init,
- * and managed by cmd_alloc() and cmd_free() using a simple bitmap to track
- * which ones are free or in use.
- */
-static CommandList_struct *cmd_alloc(ctlr_info_t *h)
-{
- CommandList_struct *c;
- int i;
- u64bit temp64;
- dma_addr_t cmd_dma_handle, err_dma_handle;
-
- do {
- i = find_first_zero_bit(h->cmd_pool_bits, h->nr_cmds);
- if (i == h->nr_cmds)
- return NULL;
- } while (test_and_set_bit(i, h->cmd_pool_bits) != 0);
- c = h->cmd_pool + i;
- memset(c, 0, sizeof(CommandList_struct));
- cmd_dma_handle = h->cmd_pool_dhandle + i * sizeof(CommandList_struct);
- c->err_info = h->errinfo_pool + i;
- memset(c->err_info, 0, sizeof(ErrorInfo_struct));
- err_dma_handle = h->errinfo_pool_dhandle
- + i * sizeof(ErrorInfo_struct);
- h->nr_allocs++;
-
- c->cmdindex = i;
-
- INIT_LIST_HEAD(&c->list);
- c->busaddr = (__u32) cmd_dma_handle;
- temp64.val = (__u64) err_dma_handle;
- c->ErrDesc.Addr.lower = temp64.val32.lower;
- c->ErrDesc.Addr.upper = temp64.val32.upper;
- c->ErrDesc.Len = sizeof(ErrorInfo_struct);
-
- c->ctlr = h->ctlr;
- return c;
-}
-
-/* allocate a command using pci_alloc_consistent, used for ioctls,
- * etc., not for the main i/o path.
- */
-static CommandList_struct *cmd_special_alloc(ctlr_info_t *h)
-{
- CommandList_struct *c;
- u64bit temp64;
- dma_addr_t cmd_dma_handle, err_dma_handle;
-
- c = pci_zalloc_consistent(h->pdev, sizeof(CommandList_struct),
- &cmd_dma_handle);
- if (c == NULL)
- return NULL;
-
- c->cmdindex = -1;
-
- c->err_info = pci_zalloc_consistent(h->pdev, sizeof(ErrorInfo_struct),
- &err_dma_handle);
-
- if (c->err_info == NULL) {
- pci_free_consistent(h->pdev,
- sizeof(CommandList_struct), c, cmd_dma_handle);
- return NULL;
- }
-
- INIT_LIST_HEAD(&c->list);
- c->busaddr = (__u32) cmd_dma_handle;
- temp64.val = (__u64) err_dma_handle;
- c->ErrDesc.Addr.lower = temp64.val32.lower;
- c->ErrDesc.Addr.upper = temp64.val32.upper;
- c->ErrDesc.Len = sizeof(ErrorInfo_struct);
-
- c->ctlr = h->ctlr;
- return c;
-}
-
-static void cmd_free(ctlr_info_t *h, CommandList_struct *c)
-{
- int i;
-
- i = c - h->cmd_pool;
- clear_bit(i, h->cmd_pool_bits);
- h->nr_frees++;
-}
-
-static void cmd_special_free(ctlr_info_t *h, CommandList_struct *c)
-{
- u64bit temp64;
-
- temp64.val32.lower = c->ErrDesc.Addr.lower;
- temp64.val32.upper = c->ErrDesc.Addr.upper;
- pci_free_consistent(h->pdev, sizeof(ErrorInfo_struct),
- c->err_info, (dma_addr_t) temp64.val);
- pci_free_consistent(h->pdev, sizeof(CommandList_struct), c,
- (dma_addr_t) cciss_tag_discard_error_bits(h, (u32) c->busaddr));
-}
-
-static inline ctlr_info_t *get_host(struct gendisk *disk)
-{
- return disk->queue->queuedata;
-}
-
-static inline drive_info_struct *get_drv(struct gendisk *disk)
-{
- return disk->private_data;
-}
-
-/*
- * Open. Make sure the device is really there.
- */
-static int cciss_open(struct block_device *bdev, fmode_t mode)
-{
- ctlr_info_t *h = get_host(bdev->bd_disk);
- drive_info_struct *drv = get_drv(bdev->bd_disk);
-
- dev_dbg(&h->pdev->dev, "cciss_open %s\n", bdev->bd_disk->disk_name);
- if (drv->busy_configuring)
- return -EBUSY;
- /*
- * Root is allowed to open raw volume zero even if it's not configured
- * so array config can still work. Root is also allowed to open any
- * volume that has a LUN ID, so it can issue IOCTL to reread the
- * disk information. I don't think I really like this
- * but I'm already using way to many device nodes to claim another one
- * for "raw controller".
- */
- if (drv->heads == 0) {
- if (MINOR(bdev->bd_dev) != 0) { /* not node 0? */
- /* if not node 0 make sure it is a partition = 0 */
- if (MINOR(bdev->bd_dev) & 0x0f) {
- return -ENXIO;
- /* if it is, make sure we have a LUN ID */
- } else if (memcmp(drv->LunID, CTLR_LUNID,
- sizeof(drv->LunID))) {
- return -ENXIO;
- }
- }
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
- }
- drv->usage_count++;
- h->usage_count++;
- return 0;
-}
-
-static int cciss_unlocked_open(struct block_device *bdev, fmode_t mode)
-{
- int ret;
-
- mutex_lock(&cciss_mutex);
- ret = cciss_open(bdev, mode);
- mutex_unlock(&cciss_mutex);
-
- return ret;
-}
-
-/*
- * Close. Sync first.
- */
-static void cciss_release(struct gendisk *disk, fmode_t mode)
-{
- ctlr_info_t *h;
- drive_info_struct *drv;
-
- mutex_lock(&cciss_mutex);
- h = get_host(disk);
- drv = get_drv(disk);
- dev_dbg(&h->pdev->dev, "cciss_release %s\n", disk->disk_name);
- drv->usage_count--;
- h->usage_count--;
- mutex_unlock(&cciss_mutex);
-}
-
-#ifdef CONFIG_COMPAT
-
-static int cciss_ioctl32_passthru(struct block_device *bdev, fmode_t mode,
- unsigned cmd, unsigned long arg);
-static int cciss_ioctl32_big_passthru(struct block_device *bdev, fmode_t mode,
- unsigned cmd, unsigned long arg);
-
-static int cciss_compat_ioctl(struct block_device *bdev, fmode_t mode,
- unsigned cmd, unsigned long arg)
-{
- switch (cmd) {
- case CCISS_GETPCIINFO:
- case CCISS_GETINTINFO:
- case CCISS_SETINTINFO:
- case CCISS_GETNODENAME:
- case CCISS_SETNODENAME:
- case CCISS_GETHEARTBEAT:
- case CCISS_GETBUSTYPES:
- case CCISS_GETFIRMVER:
- case CCISS_GETDRIVVER:
- case CCISS_REVALIDVOLS:
- case CCISS_DEREGDISK:
- case CCISS_REGNEWDISK:
- case CCISS_REGNEWD:
- case CCISS_RESCANDISK:
- case CCISS_GETLUNINFO:
- return cciss_ioctl(bdev, mode, cmd, arg);
-
- case CCISS_PASSTHRU32:
- return cciss_ioctl32_passthru(bdev, mode, cmd, arg);
- case CCISS_BIG_PASSTHRU32:
- return cciss_ioctl32_big_passthru(bdev, mode, cmd, arg);
-
- default:
- return -ENOIOCTLCMD;
- }
-}
-
-static int cciss_ioctl32_passthru(struct block_device *bdev, fmode_t mode,
- unsigned cmd, unsigned long arg)
-{
- IOCTL32_Command_struct __user *arg32 =
- (IOCTL32_Command_struct __user *) arg;
- IOCTL_Command_struct arg64;
- IOCTL_Command_struct __user *p = compat_alloc_user_space(sizeof(arg64));
- int err;
- u32 cp;
-
- memset(&arg64, 0, sizeof(arg64));
- err = 0;
- err |=
- copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
- sizeof(arg64.LUN_info));
- err |=
- copy_from_user(&arg64.Request, &arg32->Request,
- sizeof(arg64.Request));
- err |=
- copy_from_user(&arg64.error_info, &arg32->error_info,
- sizeof(arg64.error_info));
- err |= get_user(arg64.buf_size, &arg32->buf_size);
- err |= get_user(cp, &arg32->buf);
- arg64.buf = compat_ptr(cp);
- err |= copy_to_user(p, &arg64, sizeof(arg64));
-
- if (err)
- return -EFAULT;
-
- err = cciss_ioctl(bdev, mode, CCISS_PASSTHRU, (unsigned long)p);
- if (err)
- return err;
- err |=
- copy_in_user(&arg32->error_info, &p->error_info,
- sizeof(arg32->error_info));
- if (err)
- return -EFAULT;
- return err;
-}
-
-static int cciss_ioctl32_big_passthru(struct block_device *bdev, fmode_t mode,
- unsigned cmd, unsigned long arg)
-{
- BIG_IOCTL32_Command_struct __user *arg32 =
- (BIG_IOCTL32_Command_struct __user *) arg;
- BIG_IOCTL_Command_struct arg64;
- BIG_IOCTL_Command_struct __user *p =
- compat_alloc_user_space(sizeof(arg64));
- int err;
- u32 cp;
-
- memset(&arg64, 0, sizeof(arg64));
- err = 0;
- err |=
- copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
- sizeof(arg64.LUN_info));
- err |=
- copy_from_user(&arg64.Request, &arg32->Request,
- sizeof(arg64.Request));
- err |=
- copy_from_user(&arg64.error_info, &arg32->error_info,
- sizeof(arg64.error_info));
- err |= get_user(arg64.buf_size, &arg32->buf_size);
- err |= get_user(arg64.malloc_size, &arg32->malloc_size);
- err |= get_user(cp, &arg32->buf);
- arg64.buf = compat_ptr(cp);
- err |= copy_to_user(p, &arg64, sizeof(arg64));
-
- if (err)
- return -EFAULT;
-
- err = cciss_ioctl(bdev, mode, CCISS_BIG_PASSTHRU, (unsigned long)p);
- if (err)
- return err;
- err |=
- copy_in_user(&arg32->error_info, &p->error_info,
- sizeof(arg32->error_info));
- if (err)
- return -EFAULT;
- return err;
-}
-#endif
-
-static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo)
-{
- drive_info_struct *drv = get_drv(bdev->bd_disk);
-
- if (!drv->cylinders)
- return -ENXIO;
-
- geo->heads = drv->heads;
- geo->sectors = drv->sectors;
- geo->cylinders = drv->cylinders;
- return 0;
-}
-
-static void check_ioctl_unit_attention(ctlr_info_t *h, CommandList_struct *c)
-{
- if (c->err_info->CommandStatus == CMD_TARGET_STATUS &&
- c->err_info->ScsiStatus != SAM_STAT_CHECK_CONDITION)
- (void)check_for_unit_attention(h, c);
-}
-
-static int cciss_getpciinfo(ctlr_info_t *h, void __user *argp)
-{
- cciss_pci_info_struct pciinfo;
-
- if (!argp)
- return -EINVAL;
- pciinfo.domain = pci_domain_nr(h->pdev->bus);
- pciinfo.bus = h->pdev->bus->number;
- pciinfo.dev_fn = h->pdev->devfn;
- pciinfo.board_id = h->board_id;
- if (copy_to_user(argp, &pciinfo, sizeof(cciss_pci_info_struct)))
- return -EFAULT;
- return 0;
-}
-
-static int cciss_getintinfo(ctlr_info_t *h, void __user *argp)
-{
- cciss_coalint_struct intinfo;
- unsigned long flags;
-
- if (!argp)
- return -EINVAL;
- spin_lock_irqsave(&h->lock, flags);
- intinfo.delay = readl(&h->cfgtable->HostWrite.CoalIntDelay);
- intinfo.count = readl(&h->cfgtable->HostWrite.CoalIntCount);
- spin_unlock_irqrestore(&h->lock, flags);
- if (copy_to_user
- (argp, &intinfo, sizeof(cciss_coalint_struct)))
- return -EFAULT;
- return 0;
-}
-
-static int cciss_setintinfo(ctlr_info_t *h, void __user *argp)
-{
- cciss_coalint_struct intinfo;
- unsigned long flags;
- int i;
-
- if (!argp)
- return -EINVAL;
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
- if (copy_from_user(&intinfo, argp, sizeof(intinfo)))
- return -EFAULT;
- if ((intinfo.delay == 0) && (intinfo.count == 0))
- return -EINVAL;
- spin_lock_irqsave(&h->lock, flags);
- /* Update the field, and then ring the doorbell */
- writel(intinfo.delay, &(h->cfgtable->HostWrite.CoalIntDelay));
- writel(intinfo.count, &(h->cfgtable->HostWrite.CoalIntCount));
- writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
-
- for (i = 0; i < MAX_IOCTL_CONFIG_WAIT; i++) {
- if (!(readl(h->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq))
- break;
- udelay(1000); /* delay and try again */
- }
- spin_unlock_irqrestore(&h->lock, flags);
- if (i >= MAX_IOCTL_CONFIG_WAIT)
- return -EAGAIN;
- return 0;
-}
-
-static int cciss_getnodename(ctlr_info_t *h, void __user *argp)
-{
- NodeName_type NodeName;
- unsigned long flags;
- int i;
-
- if (!argp)
- return -EINVAL;
- spin_lock_irqsave(&h->lock, flags);
- for (i = 0; i < 16; i++)
- NodeName[i] = readb(&h->cfgtable->ServerName[i]);
- spin_unlock_irqrestore(&h->lock, flags);
- if (copy_to_user(argp, NodeName, sizeof(NodeName_type)))
- return -EFAULT;
- return 0;
-}
-
-static int cciss_setnodename(ctlr_info_t *h, void __user *argp)
-{
- NodeName_type NodeName;
- unsigned long flags;
- int i;
-
- if (!argp)
- return -EINVAL;
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
- if (copy_from_user(NodeName, argp, sizeof(NodeName_type)))
- return -EFAULT;
- spin_lock_irqsave(&h->lock, flags);
- /* Update the field, and then ring the doorbell */
- for (i = 0; i < 16; i++)
- writeb(NodeName[i], &h->cfgtable->ServerName[i]);
- writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
- for (i = 0; i < MAX_IOCTL_CONFIG_WAIT; i++) {
- if (!(readl(h->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq))
- break;
- udelay(1000); /* delay and try again */
- }
- spin_unlock_irqrestore(&h->lock, flags);
- if (i >= MAX_IOCTL_CONFIG_WAIT)
- return -EAGAIN;
- return 0;
-}
-
-static int cciss_getheartbeat(ctlr_info_t *h, void __user *argp)
-{
- Heartbeat_type heartbeat;
- unsigned long flags;
-
- if (!argp)
- return -EINVAL;
- spin_lock_irqsave(&h->lock, flags);
- heartbeat = readl(&h->cfgtable->HeartBeat);
- spin_unlock_irqrestore(&h->lock, flags);
- if (copy_to_user(argp, &heartbeat, sizeof(Heartbeat_type)))
- return -EFAULT;
- return 0;
-}
-
-static int cciss_getbustypes(ctlr_info_t *h, void __user *argp)
-{
- BusTypes_type BusTypes;
- unsigned long flags;
-
- if (!argp)
- return -EINVAL;
- spin_lock_irqsave(&h->lock, flags);
- BusTypes = readl(&h->cfgtable->BusTypes);
- spin_unlock_irqrestore(&h->lock, flags);
- if (copy_to_user(argp, &BusTypes, sizeof(BusTypes_type)))
- return -EFAULT;
- return 0;
-}
-
-static int cciss_getfirmver(ctlr_info_t *h, void __user *argp)
-{
- FirmwareVer_type firmware;
-
- if (!argp)
- return -EINVAL;
- memcpy(firmware, h->firm_ver, 4);
-
- if (copy_to_user
- (argp, firmware, sizeof(FirmwareVer_type)))
- return -EFAULT;
- return 0;
-}
-
-static int cciss_getdrivver(ctlr_info_t *h, void __user *argp)
-{
- DriverVer_type DriverVer = DRIVER_VERSION;
-
- if (!argp)
- return -EINVAL;
- if (copy_to_user(argp, &DriverVer, sizeof(DriverVer_type)))
- return -EFAULT;
- return 0;
-}
-
-static int cciss_getluninfo(ctlr_info_t *h,
- struct gendisk *disk, void __user *argp)
-{
- LogvolInfo_struct luninfo;
- drive_info_struct *drv = get_drv(disk);
-
- if (!argp)
- return -EINVAL;
- memcpy(&luninfo.LunID, drv->LunID, sizeof(luninfo.LunID));
- luninfo.num_opens = drv->usage_count;
- luninfo.num_parts = 0;
- if (copy_to_user(argp, &luninfo, sizeof(LogvolInfo_struct)))
- return -EFAULT;
- return 0;
-}
-
-static int cciss_passthru(ctlr_info_t *h, void __user *argp)
-{
- IOCTL_Command_struct iocommand;
- CommandList_struct *c;
- char *buff = NULL;
- u64bit temp64;
- DECLARE_COMPLETION_ONSTACK(wait);
-
- if (!argp)
- return -EINVAL;
-
- if (!capable(CAP_SYS_RAWIO))
- return -EPERM;
-
- if (copy_from_user
- (&iocommand, argp, sizeof(IOCTL_Command_struct)))
- return -EFAULT;
- if ((iocommand.buf_size < 1) &&
- (iocommand.Request.Type.Direction != XFER_NONE)) {
- return -EINVAL;
- }
- if (iocommand.buf_size > 0) {
- buff = kmalloc(iocommand.buf_size, GFP_KERNEL);
- if (buff == NULL)
- return -EFAULT;
- }
- if (iocommand.Request.Type.Direction == XFER_WRITE) {
- /* Copy the data into the buffer we created */
- if (copy_from_user(buff, iocommand.buf, iocommand.buf_size)) {
- kfree(buff);
- return -EFAULT;
- }
- } else {
- memset(buff, 0, iocommand.buf_size);
- }
- c = cmd_special_alloc(h);
- if (!c) {
- kfree(buff);
- return -ENOMEM;
- }
- /* Fill in the command type */
- c->cmd_type = CMD_IOCTL_PEND;
- /* Fill in Command Header */
- c->Header.ReplyQueue = 0; /* unused in simple mode */
- if (iocommand.buf_size > 0) { /* buffer to fill */
- c->Header.SGList = 1;
- c->Header.SGTotal = 1;
- } else { /* no buffers to fill */
- c->Header.SGList = 0;
- c->Header.SGTotal = 0;
- }
- c->Header.LUN = iocommand.LUN_info;
- /* use the kernel address the cmd block for tag */
- c->Header.Tag.lower = c->busaddr;
-
- /* Fill in Request block */
- c->Request = iocommand.Request;
-
- /* Fill in the scatter gather information */
- if (iocommand.buf_size > 0) {
- temp64.val = pci_map_single(h->pdev, buff,
- iocommand.buf_size, PCI_DMA_BIDIRECTIONAL);
- c->SG[0].Addr.lower = temp64.val32.lower;
- c->SG[0].Addr.upper = temp64.val32.upper;
- c->SG[0].Len = iocommand.buf_size;
- c->SG[0].Ext = 0; /* we are not chaining */
- }
- c->waiting = &wait;
-
- enqueue_cmd_and_start_io(h, c);
- wait_for_completion(&wait);
-
- /* unlock the buffers from DMA */
- temp64.val32.lower = c->SG[0].Addr.lower;
- temp64.val32.upper = c->SG[0].Addr.upper;
- pci_unmap_single(h->pdev, (dma_addr_t) temp64.val, iocommand.buf_size,
- PCI_DMA_BIDIRECTIONAL);
- check_ioctl_unit_attention(h, c);
-
- /* Copy the error information out */
- iocommand.error_info = *(c->err_info);
- if (copy_to_user(argp, &iocommand, sizeof(IOCTL_Command_struct))) {
- kfree(buff);
- cmd_special_free(h, c);
- return -EFAULT;
- }
-
- if (iocommand.Request.Type.Direction == XFER_READ) {
- /* Copy the data out of the buffer we created */
- if (copy_to_user(iocommand.buf, buff, iocommand.buf_size)) {
- kfree(buff);
- cmd_special_free(h, c);
- return -EFAULT;
- }
- }
- kfree(buff);
- cmd_special_free(h, c);
- return 0;
-}
-
-static int cciss_bigpassthru(ctlr_info_t *h, void __user *argp)
-{
- BIG_IOCTL_Command_struct *ioc;
- CommandList_struct *c;
- unsigned char **buff = NULL;
- int *buff_size = NULL;
- u64bit temp64;
- BYTE sg_used = 0;
- int status = 0;
- int i;
- DECLARE_COMPLETION_ONSTACK(wait);
- __u32 left;
- __u32 sz;
- BYTE __user *data_ptr;
-
- if (!argp)
- return -EINVAL;
- if (!capable(CAP_SYS_RAWIO))
- return -EPERM;
- ioc = kmalloc(sizeof(*ioc), GFP_KERNEL);
- if (!ioc) {
- status = -ENOMEM;
- goto cleanup1;
- }
- if (copy_from_user(ioc, argp, sizeof(*ioc))) {
- status = -EFAULT;
- goto cleanup1;
- }
- if ((ioc->buf_size < 1) &&
- (ioc->Request.Type.Direction != XFER_NONE)) {
- status = -EINVAL;
- goto cleanup1;
- }
- /* Check kmalloc limits using all SGs */
- if (ioc->malloc_size > MAX_KMALLOC_SIZE) {
- status = -EINVAL;
- goto cleanup1;
- }
- if (ioc->buf_size > ioc->malloc_size * MAXSGENTRIES) {
- status = -EINVAL;
- goto cleanup1;
- }
- buff = kzalloc(MAXSGENTRIES * sizeof(char *), GFP_KERNEL);
- if (!buff) {
- status = -ENOMEM;
- goto cleanup1;
- }
- buff_size = kmalloc(MAXSGENTRIES * sizeof(int), GFP_KERNEL);
- if (!buff_size) {
- status = -ENOMEM;
- goto cleanup1;
- }
- left = ioc->buf_size;
- data_ptr = ioc->buf;
- while (left) {
- sz = (left > ioc->malloc_size) ? ioc->malloc_size : left;
- buff_size[sg_used] = sz;
- buff[sg_used] = kmalloc(sz, GFP_KERNEL);
- if (buff[sg_used] == NULL) {
- status = -ENOMEM;
- goto cleanup1;
- }
- if (ioc->Request.Type.Direction == XFER_WRITE) {
- if (copy_from_user(buff[sg_used], data_ptr, sz)) {
- status = -EFAULT;
- goto cleanup1;
- }
- } else {
- memset(buff[sg_used], 0, sz);
- }
- left -= sz;
- data_ptr += sz;
- sg_used++;
- }
- c = cmd_special_alloc(h);
- if (!c) {
- status = -ENOMEM;
- goto cleanup1;
- }
- c->cmd_type = CMD_IOCTL_PEND;
- c->Header.ReplyQueue = 0;
- c->Header.SGList = sg_used;
- c->Header.SGTotal = sg_used;
- c->Header.LUN = ioc->LUN_info;
- c->Header.Tag.lower = c->busaddr;
-
- c->Request = ioc->Request;
- for (i = 0; i < sg_used; i++) {
- temp64.val = pci_map_single(h->pdev, buff[i], buff_size[i],
- PCI_DMA_BIDIRECTIONAL);
- c->SG[i].Addr.lower = temp64.val32.lower;
- c->SG[i].Addr.upper = temp64.val32.upper;
- c->SG[i].Len = buff_size[i];
- c->SG[i].Ext = 0; /* we are not chaining */
- }
- c->waiting = &wait;
- enqueue_cmd_and_start_io(h, c);
- wait_for_completion(&wait);
- /* unlock the buffers from DMA */
- for (i = 0; i < sg_used; i++) {
- temp64.val32.lower = c->SG[i].Addr.lower;
- temp64.val32.upper = c->SG[i].Addr.upper;
- pci_unmap_single(h->pdev,
- (dma_addr_t) temp64.val, buff_size[i],
- PCI_DMA_BIDIRECTIONAL);
- }
- check_ioctl_unit_attention(h, c);
- /* Copy the error information out */
- ioc->error_info = *(c->err_info);
- if (copy_to_user(argp, ioc, sizeof(*ioc))) {
- cmd_special_free(h, c);
- status = -EFAULT;
- goto cleanup1;
- }
- if (ioc->Request.Type.Direction == XFER_READ) {
- /* Copy the data out of the buffer we created */
- BYTE __user *ptr = ioc->buf;
- for (i = 0; i < sg_used; i++) {
- if (copy_to_user(ptr, buff[i], buff_size[i])) {
- cmd_special_free(h, c);
- status = -EFAULT;
- goto cleanup1;
- }
- ptr += buff_size[i];
- }
- }
- cmd_special_free(h, c);
- status = 0;
-cleanup1:
- if (buff) {
- for (i = 0; i < sg_used; i++)
- kfree(buff[i]);
- kfree(buff);
- }
- kfree(buff_size);
- kfree(ioc);
- return status;
-}
-
-static int cciss_ioctl(struct block_device *bdev, fmode_t mode,
- unsigned int cmd, unsigned long arg)
-{
- struct gendisk *disk = bdev->bd_disk;
- ctlr_info_t *h = get_host(disk);
- void __user *argp = (void __user *)arg;
-
- dev_dbg(&h->pdev->dev, "cciss_ioctl: Called with cmd=%x %lx\n",
- cmd, arg);
- switch (cmd) {
- case CCISS_GETPCIINFO:
- return cciss_getpciinfo(h, argp);
- case CCISS_GETINTINFO:
- return cciss_getintinfo(h, argp);
- case CCISS_SETINTINFO:
- return cciss_setintinfo(h, argp);
- case CCISS_GETNODENAME:
- return cciss_getnodename(h, argp);
- case CCISS_SETNODENAME:
- return cciss_setnodename(h, argp);
- case CCISS_GETHEARTBEAT:
- return cciss_getheartbeat(h, argp);
- case CCISS_GETBUSTYPES:
- return cciss_getbustypes(h, argp);
- case CCISS_GETFIRMVER:
- return cciss_getfirmver(h, argp);
- case CCISS_GETDRIVVER:
- return cciss_getdrivver(h, argp);
- case CCISS_DEREGDISK:
- case CCISS_REGNEWD:
- case CCISS_REVALIDVOLS:
- return rebuild_lun_table(h, 0, 1);
- case CCISS_GETLUNINFO:
- return cciss_getluninfo(h, disk, argp);
- case CCISS_PASSTHRU:
- return cciss_passthru(h, argp);
- case CCISS_BIG_PASSTHRU:
- return cciss_bigpassthru(h, argp);
-
- /* scsi_cmd_blk_ioctl handles these, below, though some are not */
- /* very meaningful for cciss. SG_IO is the main one people want. */
-
- case SG_GET_VERSION_NUM:
- case SG_SET_TIMEOUT:
- case SG_GET_TIMEOUT:
- case SG_GET_RESERVED_SIZE:
- case SG_SET_RESERVED_SIZE:
- case SG_EMULATED_HOST:
- case SG_IO:
- case SCSI_IOCTL_SEND_COMMAND:
- return scsi_cmd_blk_ioctl(bdev, mode, cmd, argp);
-
- /* scsi_cmd_blk_ioctl would normally handle these, below, but */
- /* they aren't a good fit for cciss, as CD-ROMs are */
- /* not supported, and we don't have any bus/target/lun */
- /* which we present to the kernel. */
-
- case CDROM_SEND_PACKET:
- case CDROMCLOSETRAY:
- case CDROMEJECT:
- case SCSI_IOCTL_GET_IDLUN:
- case SCSI_IOCTL_GET_BUS_NUMBER:
- default:
- return -ENOTTY;
- }
-}
-
-static void cciss_check_queues(ctlr_info_t *h)
-{
- int start_queue = h->next_to_run;
- int i;
-
- /* check to see if we have maxed out the number of commands that can
- * be placed on the queue. If so then exit. We do this check here
- * in case the interrupt we serviced was from an ioctl and did not
- * free any new commands.
- */
- if ((find_first_zero_bit(h->cmd_pool_bits, h->nr_cmds)) == h->nr_cmds)
- return;
-
- /* We have room on the queue for more commands. Now we need to queue
- * them up. We will also keep track of the next queue to run so
- * that every queue gets a chance to be started first.
- */
- for (i = 0; i < h->highest_lun + 1; i++) {
- int curr_queue = (start_queue + i) % (h->highest_lun + 1);
- /* make sure the disk has been added and the drive is real
- * because this can be called from the middle of init_one.
- */
- if (!h->drv[curr_queue])
- continue;
- if (!(h->drv[curr_queue]->queue) ||
- !(h->drv[curr_queue]->heads))
- continue;
- blk_start_queue(h->gendisk[curr_queue]->queue);
-
- /* check to see if we have maxed out the number of commands
- * that can be placed on the queue.
- */
- if ((find_first_zero_bit(h->cmd_pool_bits, h->nr_cmds)) == h->nr_cmds) {
- if (curr_queue == start_queue) {
- h->next_to_run =
- (start_queue + 1) % (h->highest_lun + 1);
- break;
- } else {
- h->next_to_run = curr_queue;
- break;
- }
- }
- }
-}
-
-static void cciss_softirq_done(struct request *rq)
-{
- CommandList_struct *c = rq->completion_data;
- ctlr_info_t *h = hba[c->ctlr];
- SGDescriptor_struct *curr_sg = c->SG;
- u64bit temp64;
- unsigned long flags;
- int i, ddir;
- int sg_index = 0;
-
- if (c->Request.Type.Direction == XFER_READ)
- ddir = PCI_DMA_FROMDEVICE;
- else
- ddir = PCI_DMA_TODEVICE;
-
- /* command did not need to be retried */
- /* unmap the DMA mapping for all the scatter gather elements */
- for (i = 0; i < c->Header.SGList; i++) {
- if (curr_sg[sg_index].Ext == CCISS_SG_CHAIN) {
- cciss_unmap_sg_chain_block(h, c);
- /* Point to the next block */
- curr_sg = h->cmd_sg_list[c->cmdindex];
- sg_index = 0;
- }
- temp64.val32.lower = curr_sg[sg_index].Addr.lower;
- temp64.val32.upper = curr_sg[sg_index].Addr.upper;
- pci_unmap_page(h->pdev, temp64.val, curr_sg[sg_index].Len,
- ddir);
- ++sg_index;
- }
-
- dev_dbg(&h->pdev->dev, "Done with %p\n", rq);
-
- /* set the residual count for pc requests */
- if (blk_rq_is_passthrough(rq))
- scsi_req(rq)->resid_len = c->err_info->ResidualCnt;
- blk_end_request_all(rq, scsi_req(rq)->result ? -EIO : 0);
-
- spin_lock_irqsave(&h->lock, flags);
- cmd_free(h, c);
- cciss_check_queues(h);
- spin_unlock_irqrestore(&h->lock, flags);
-}
-
-static inline void log_unit_to_scsi3addr(ctlr_info_t *h,
- unsigned char scsi3addr[], uint32_t log_unit)
-{
- memcpy(scsi3addr, h->drv[log_unit]->LunID,
- sizeof(h->drv[log_unit]->LunID));
-}
-
-/* This function gets the SCSI vendor, model, and revision of a logical drive
- * via the inquiry page 0. Model, vendor, and rev are set to empty strings if
- * they cannot be read.
- */
-static void cciss_get_device_descr(ctlr_info_t *h, int logvol,
- char *vendor, char *model, char *rev)
-{
- int rc;
- InquiryData_struct *inq_buf;
- unsigned char scsi3addr[8];
-
- *vendor = '\0';
- *model = '\0';
- *rev = '\0';
-
- inq_buf = kzalloc(sizeof(InquiryData_struct), GFP_KERNEL);
- if (!inq_buf)
- return;
-
- log_unit_to_scsi3addr(h, scsi3addr, logvol);
- rc = sendcmd_withirq(h, CISS_INQUIRY, inq_buf, sizeof(*inq_buf), 0,
- scsi3addr, TYPE_CMD);
- if (rc == IO_OK) {
- memcpy(vendor, &inq_buf->data_byte[8], VENDOR_LEN);
- vendor[VENDOR_LEN] = '\0';
- memcpy(model, &inq_buf->data_byte[16], MODEL_LEN);
- model[MODEL_LEN] = '\0';
- memcpy(rev, &inq_buf->data_byte[32], REV_LEN);
- rev[REV_LEN] = '\0';
- }
-
- kfree(inq_buf);
- return;
-}
-
-/* This function gets the serial number of a logical drive via
- * inquiry page 0x83. Serial no. is 16 bytes. If the serial
- * number cannot be had, for whatever reason, 16 bytes of 0xff
- * are returned instead.
- */
-static void cciss_get_serial_no(ctlr_info_t *h, int logvol,
- unsigned char *serial_no, int buflen)
-{
-#define PAGE_83_INQ_BYTES 64
- int rc;
- unsigned char *buf;
- unsigned char scsi3addr[8];
-
- if (buflen > 16)
- buflen = 16;
- memset(serial_no, 0xff, buflen);
- buf = kzalloc(PAGE_83_INQ_BYTES, GFP_KERNEL);
- if (!buf)
- return;
- memset(serial_no, 0, buflen);
- log_unit_to_scsi3addr(h, scsi3addr, logvol);
- rc = sendcmd_withirq(h, CISS_INQUIRY, buf,
- PAGE_83_INQ_BYTES, 0x83, scsi3addr, TYPE_CMD);
- if (rc == IO_OK)
- memcpy(serial_no, &buf[8], buflen);
- kfree(buf);
- return;
-}
-
-/*
- * cciss_add_disk sets up the block device queue for a logical drive
- */
-static int cciss_add_disk(ctlr_info_t *h, struct gendisk *disk,
- int drv_index)
-{
- disk->queue = blk_alloc_queue(GFP_KERNEL);
- if (!disk->queue)
- goto init_queue_failure;
-
- disk->queue->cmd_size = sizeof(struct scsi_request);
- disk->queue->request_fn = do_cciss_request;
- disk->queue->queue_lock = &h->lock;
- if (blk_init_allocated_queue(disk->queue) < 0)
- goto cleanup_queue;
-
- sprintf(disk->disk_name, "cciss/c%dd%d", h->ctlr, drv_index);
- disk->major = h->major;
- disk->first_minor = drv_index << NWD_SHIFT;
- disk->fops = &cciss_fops;
- if (cciss_create_ld_sysfs_entry(h, drv_index))
- goto cleanup_queue;
- disk->private_data = h->drv[drv_index];
-
- /* Set up queue information */
- blk_queue_bounce_limit(disk->queue, h->pdev->dma_mask);
-
- /* This is a hardware imposed limit. */
- blk_queue_max_segments(disk->queue, h->maxsgentries);
-
- blk_queue_max_hw_sectors(disk->queue, h->cciss_max_sectors);
-
- blk_queue_softirq_done(disk->queue, cciss_softirq_done);
-
- disk->queue->queuedata = h;
-
- blk_queue_logical_block_size(disk->queue,
- h->drv[drv_index]->block_size);
-
- /* Make sure all queue data is written out before */
- /* setting h->drv[drv_index]->queue, as setting this */
- /* allows the interrupt handler to start the queue */
- wmb();
- h->drv[drv_index]->queue = disk->queue;
- device_add_disk(&h->drv[drv_index]->dev, disk);
- return 0;
-
-cleanup_queue:
- blk_cleanup_queue(disk->queue);
- disk->queue = NULL;
-init_queue_failure:
- return -1;
-}
-
-/* This function will check the usage_count of the drive to be updated/added.
- * If the usage_count is zero and it is a heretofore unknown drive, or,
- * the drive's capacity, geometry, or serial number has changed,
- * then the drive information will be updated and the disk will be
- * re-registered with the kernel. If these conditions don't hold,
- * then it will be left alone for the next reboot. The exception to this
- * is disk 0 which will always be left registered with the kernel since it
- * is also the controller node. Any changes to disk 0 will show up on
- * the next reboot.
- */
-static void cciss_update_drive_info(ctlr_info_t *h, int drv_index,
- int first_time, int via_ioctl)
-{
- struct gendisk *disk;
- InquiryData_struct *inq_buff = NULL;
- unsigned int block_size;
- sector_t total_size;
- unsigned long flags = 0;
- int ret = 0;
- drive_info_struct *drvinfo;
-
- /* Get information about the disk and modify the driver structure */
- inq_buff = kmalloc(sizeof(InquiryData_struct), GFP_KERNEL);
- drvinfo = kzalloc(sizeof(*drvinfo), GFP_KERNEL);
- if (inq_buff == NULL || drvinfo == NULL)
- goto mem_msg;
-
- /* testing to see if 16-byte CDBs are already being used */
- if (h->cciss_read == CCISS_READ_16) {
- cciss_read_capacity_16(h, drv_index,
- &total_size, &block_size);
-
- } else {
- cciss_read_capacity(h, drv_index, &total_size, &block_size);
- /* if read_capacity returns all F's this volume is >2TB */
- /* in size so we switch to 16-byte CDB's for all */
- /* read/write ops */
- if (total_size == 0xFFFFFFFFULL) {
- cciss_read_capacity_16(h, drv_index,
- &total_size, &block_size);
- h->cciss_read = CCISS_READ_16;
- h->cciss_write = CCISS_WRITE_16;
- } else {
- h->cciss_read = CCISS_READ_10;
- h->cciss_write = CCISS_WRITE_10;
- }
- }
-
- cciss_geometry_inquiry(h, drv_index, total_size, block_size,
- inq_buff, drvinfo);
- drvinfo->block_size = block_size;
- drvinfo->nr_blocks = total_size + 1;
-
- cciss_get_device_descr(h, drv_index, drvinfo->vendor,
- drvinfo->model, drvinfo->rev);
- cciss_get_serial_no(h, drv_index, drvinfo->serial_no,
- sizeof(drvinfo->serial_no));
- /* Save the lunid in case we deregister the disk, below. */
- memcpy(drvinfo->LunID, h->drv[drv_index]->LunID,
- sizeof(drvinfo->LunID));
-
- /* Is it the same disk we already know, and nothing's changed? */
- if (h->drv[drv_index]->raid_level != -1 &&
- ((memcmp(drvinfo->serial_no,
- h->drv[drv_index]->serial_no, 16) == 0) &&
- drvinfo->block_size == h->drv[drv_index]->block_size &&
- drvinfo->nr_blocks == h->drv[drv_index]->nr_blocks &&
- drvinfo->heads == h->drv[drv_index]->heads &&
- drvinfo->sectors == h->drv[drv_index]->sectors &&
- drvinfo->cylinders == h->drv[drv_index]->cylinders))
- /* The disk is unchanged, nothing to update */
- goto freeret;
-
- /* If we get here it's not the same disk, or something's changed,
- * so we need to * deregister it, and re-register it, if it's not
- * in use.
- * If the disk already exists then deregister it before proceeding
- * (unless it's the first disk (for the controller node).
- */
- if (h->drv[drv_index]->raid_level != -1 && drv_index != 0) {
- dev_warn(&h->pdev->dev, "disk %d has changed.\n", drv_index);
- spin_lock_irqsave(&h->lock, flags);
- h->drv[drv_index]->busy_configuring = 1;
- spin_unlock_irqrestore(&h->lock, flags);
-
- /* deregister_disk sets h->drv[drv_index]->queue = NULL
- * which keeps the interrupt handler from starting
- * the queue.
- */
- ret = deregister_disk(h, drv_index, 0, via_ioctl);
- }
-
- /* If the disk is in use return */
- if (ret)
- goto freeret;
-
- /* Save the new information from cciss_geometry_inquiry
- * and serial number inquiry. If the disk was deregistered
- * above, then h->drv[drv_index] will be NULL.
- */
- if (h->drv[drv_index] == NULL) {
- drvinfo->device_initialized = 0;
- h->drv[drv_index] = drvinfo;
- drvinfo = NULL; /* so it won't be freed below. */
- } else {
- /* special case for cxd0 */
- h->drv[drv_index]->block_size = drvinfo->block_size;
- h->drv[drv_index]->nr_blocks = drvinfo->nr_blocks;
- h->drv[drv_index]->heads = drvinfo->heads;
- h->drv[drv_index]->sectors = drvinfo->sectors;
- h->drv[drv_index]->cylinders = drvinfo->cylinders;
- h->drv[drv_index]->raid_level = drvinfo->raid_level;
- memcpy(h->drv[drv_index]->serial_no, drvinfo->serial_no, 16);
- memcpy(h->drv[drv_index]->vendor, drvinfo->vendor,
- VENDOR_LEN + 1);
- memcpy(h->drv[drv_index]->model, drvinfo->model, MODEL_LEN + 1);
- memcpy(h->drv[drv_index]->rev, drvinfo->rev, REV_LEN + 1);
- }
-
- ++h->num_luns;
- disk = h->gendisk[drv_index];
- set_capacity(disk, h->drv[drv_index]->nr_blocks);
-
- /* If it's not disk 0 (drv_index != 0)
- * or if it was disk 0, but there was previously
- * no actual corresponding configured logical drive
- * (raid_leve == -1) then we want to update the
- * logical drive's information.
- */
- if (drv_index || first_time) {
- if (cciss_add_disk(h, disk, drv_index) != 0) {
- cciss_free_gendisk(h, drv_index);
- cciss_free_drive_info(h, drv_index);
- dev_warn(&h->pdev->dev, "could not update disk %d\n",
- drv_index);
- --h->num_luns;
- }
- }
-
-freeret:
- kfree(inq_buff);
- kfree(drvinfo);
- return;
-mem_msg:
- dev_err(&h->pdev->dev, "out of memory\n");
- goto freeret;
-}
-
-/* This function will find the first index of the controllers drive array
- * that has a null drv pointer and allocate the drive info struct and
- * will return that index This is where new drives will be added.
- * If the index to be returned is greater than the highest_lun index for
- * the controller then highest_lun is set * to this new index.
- * If there are no available indexes or if tha allocation fails, then -1
- * is returned. * "controller_node" is used to know if this is a real
- * logical drive, or just the controller node, which determines if this
- * counts towards highest_lun.
- */
-static int cciss_alloc_drive_info(ctlr_info_t *h, int controller_node)
-{
- int i;
- drive_info_struct *drv;
-
- /* Search for an empty slot for our drive info */
- for (i = 0; i < CISS_MAX_LUN; i++) {
-
- /* if not cxd0 case, and it's occupied, skip it. */
- if (h->drv[i] && i != 0)
- continue;
- /*
- * If it's cxd0 case, and drv is alloc'ed already, and a
- * disk is configured there, skip it.
- */
- if (i == 0 && h->drv[i] && h->drv[i]->raid_level != -1)
- continue;
-
- /*
- * We've found an empty slot. Update highest_lun
- * provided this isn't just the fake cxd0 controller node.
- */
- if (i > h->highest_lun && !controller_node)
- h->highest_lun = i;
-
- /* If adding a real disk at cxd0, and it's already alloc'ed */
- if (i == 0 && h->drv[i] != NULL)
- return i;
-
- /*
- * Found an empty slot, not already alloc'ed. Allocate it.
- * Mark it with raid_level == -1, so we know it's new later on.
- */
- drv = kzalloc(sizeof(*drv), GFP_KERNEL);
- if (!drv)
- return -1;
- drv->raid_level = -1; /* so we know it's new */
- h->drv[i] = drv;
- return i;
- }
- return -1;
-}
-
-static void cciss_free_drive_info(ctlr_info_t *h, int drv_index)
-{
- kfree(h->drv[drv_index]);
- h->drv[drv_index] = NULL;
-}
-
-static void cciss_free_gendisk(ctlr_info_t *h, int drv_index)
-{
- put_disk(h->gendisk[drv_index]);
- h->gendisk[drv_index] = NULL;
-}
-
-/* cciss_add_gendisk finds a free hba[]->drv structure
- * and allocates a gendisk if needed, and sets the lunid
- * in the drvinfo structure. It returns the index into
- * the ->drv[] array, or -1 if none are free.
- * is_controller_node indicates whether highest_lun should
- * count this disk, or if it's only being added to provide
- * a means to talk to the controller in case no logical
- * drives have yet been configured.
- */
-static int cciss_add_gendisk(ctlr_info_t *h, unsigned char lunid[],
- int controller_node)
-{
- int drv_index;
-
- drv_index = cciss_alloc_drive_info(h, controller_node);
- if (drv_index == -1)
- return -1;
-
- /*Check if the gendisk needs to be allocated */
- if (!h->gendisk[drv_index]) {
- h->gendisk[drv_index] =
- alloc_disk(1 << NWD_SHIFT);
- if (!h->gendisk[drv_index]) {
- dev_err(&h->pdev->dev,
- "could not allocate a new disk %d\n",
- drv_index);
- goto err_free_drive_info;
- }
- }
- memcpy(h->drv[drv_index]->LunID, lunid,
- sizeof(h->drv[drv_index]->LunID));
- if (cciss_create_ld_sysfs_entry(h, drv_index))
- goto err_free_disk;
- /* Don't need to mark this busy because nobody */
- /* else knows about this disk yet to contend */
- /* for access to it. */
- h->drv[drv_index]->busy_configuring = 0;
- wmb();
- return drv_index;
-
-err_free_disk:
- cciss_free_gendisk(h, drv_index);
-err_free_drive_info:
- cciss_free_drive_info(h, drv_index);
- return -1;
-}
-
-/* This is for the special case of a controller which
- * has no logical drives. In this case, we still need
- * to register a disk so the controller can be accessed
- * by the Array Config Utility.
- */
-static void cciss_add_controller_node(ctlr_info_t *h)
-{
- struct gendisk *disk;
- int drv_index;
-
- if (h->gendisk[0] != NULL) /* already did this? Then bail. */
- return;
-
- drv_index = cciss_add_gendisk(h, CTLR_LUNID, 1);
- if (drv_index == -1)
- goto error;
- h->drv[drv_index]->block_size = 512;
- h->drv[drv_index]->nr_blocks = 0;
- h->drv[drv_index]->heads = 0;
- h->drv[drv_index]->sectors = 0;
- h->drv[drv_index]->cylinders = 0;
- h->drv[drv_index]->raid_level = -1;
- memset(h->drv[drv_index]->serial_no, 0, 16);
- disk = h->gendisk[drv_index];
- if (cciss_add_disk(h, disk, drv_index) == 0)
- return;
- cciss_free_gendisk(h, drv_index);
- cciss_free_drive_info(h, drv_index);
-error:
- dev_warn(&h->pdev->dev, "could not add disk 0.\n");
- return;
-}
-
-/* This function will add and remove logical drives from the Logical
- * drive array of the controller and maintain persistency of ordering
- * so that mount points are preserved until the next reboot. This allows
- * for the removal of logical drives in the middle of the drive array
- * without a re-ordering of those drives.
- * INPUT
- * h = The controller to perform the operations on
- */
-static int rebuild_lun_table(ctlr_info_t *h, int first_time,
- int via_ioctl)
-{
- int num_luns;
- ReportLunData_struct *ld_buff = NULL;
- int return_code;
- int listlength = 0;
- int i;
- int drv_found;
- int drv_index = 0;
- unsigned char lunid[8] = CTLR_LUNID;
- unsigned long flags;
-
- if (!capable(CAP_SYS_RAWIO))
- return -EPERM;
-
- /* Set busy_configuring flag for this operation */
- spin_lock_irqsave(&h->lock, flags);
- if (h->busy_configuring) {
- spin_unlock_irqrestore(&h->lock, flags);
- return -EBUSY;
- }
- h->busy_configuring = 1;
- spin_unlock_irqrestore(&h->lock, flags);
-
- ld_buff = kzalloc(sizeof(ReportLunData_struct), GFP_KERNEL);
- if (ld_buff == NULL)
- goto mem_msg;
-
- return_code = sendcmd_withirq(h, CISS_REPORT_LOG, ld_buff,
- sizeof(ReportLunData_struct),
- 0, CTLR_LUNID, TYPE_CMD);
-
- if (return_code == IO_OK)
- listlength = be32_to_cpu(*(__be32 *) ld_buff->LUNListLength);
- else { /* reading number of logical volumes failed */
- dev_warn(&h->pdev->dev,
- "report logical volume command failed\n");
- listlength = 0;
- goto freeret;
- }
-
- num_luns = listlength / 8; /* 8 bytes per entry */
- if (num_luns > CISS_MAX_LUN) {
- num_luns = CISS_MAX_LUN;
- dev_warn(&h->pdev->dev, "more luns configured"
- " on controller than can be handled by"
- " this driver.\n");
- }
-
- if (num_luns == 0)
- cciss_add_controller_node(h);
-
- /* Compare controller drive array to driver's drive array
- * to see if any drives are missing on the controller due
- * to action of Array Config Utility (user deletes drive)
- * and deregister logical drives which have disappeared.
- */
- for (i = 0; i <= h->highest_lun; i++) {
- int j;
- drv_found = 0;
-
- /* skip holes in the array from already deleted drives */
- if (h->drv[i] == NULL)
- continue;
-
- for (j = 0; j < num_luns; j++) {
- memcpy(lunid, &ld_buff->LUN[j][0], sizeof(lunid));
- if (memcmp(h->drv[i]->LunID, lunid,
- sizeof(lunid)) == 0) {
- drv_found = 1;
- break;
- }
- }
- if (!drv_found) {
- /* Deregister it from the OS, it's gone. */
- spin_lock_irqsave(&h->lock, flags);
- h->drv[i]->busy_configuring = 1;
- spin_unlock_irqrestore(&h->lock, flags);
- return_code = deregister_disk(h, i, 1, via_ioctl);
- if (h->drv[i] != NULL)
- h->drv[i]->busy_configuring = 0;
- }
- }
-
- /* Compare controller drive array to driver's drive array.
- * Check for updates in the drive information and any new drives
- * on the controller due to ACU adding logical drives, or changing
- * a logical drive's size, etc. Reregister any new/changed drives
- */
- for (i = 0; i < num_luns; i++) {
- int j;
-
- drv_found = 0;
-
- memcpy(lunid, &ld_buff->LUN[i][0], sizeof(lunid));
- /* Find if the LUN is already in the drive array
- * of the driver. If so then update its info
- * if not in use. If it does not exist then find
- * the first free index and add it.
- */
- for (j = 0; j <= h->highest_lun; j++) {
- if (h->drv[j] != NULL &&
- memcmp(h->drv[j]->LunID, lunid,
- sizeof(h->drv[j]->LunID)) == 0) {
- drv_index = j;
- drv_found = 1;
- break;
- }
- }
-
- /* check if the drive was found already in the array */
- if (!drv_found) {
- drv_index = cciss_add_gendisk(h, lunid, 0);
- if (drv_index == -1)
- goto freeret;
- }
- cciss_update_drive_info(h, drv_index, first_time, via_ioctl);
- } /* end for */
-
-freeret:
- kfree(ld_buff);
- h->busy_configuring = 0;
- /* We return -1 here to tell the ACU that we have registered/updated
- * all of the drives that we can and to keep it from calling us
- * additional times.
- */
- return -1;
-mem_msg:
- dev_err(&h->pdev->dev, "out of memory\n");
- h->busy_configuring = 0;
- goto freeret;
-}
-
-static void cciss_clear_drive_info(drive_info_struct *drive_info)
-{
- /* zero out the disk size info */
- drive_info->nr_blocks = 0;
- drive_info->block_size = 0;
- drive_info->heads = 0;
- drive_info->sectors = 0;
- drive_info->cylinders = 0;
- drive_info->raid_level = -1;
- memset(drive_info->serial_no, 0, sizeof(drive_info->serial_no));
- memset(drive_info->model, 0, sizeof(drive_info->model));
- memset(drive_info->rev, 0, sizeof(drive_info->rev));
- memset(drive_info->vendor, 0, sizeof(drive_info->vendor));
- /*
- * don't clear the LUNID though, we need to remember which
- * one this one is.
- */
-}
-
-/* This function will deregister the disk and it's queue from the
- * kernel. It must be called with the controller lock held and the
- * drv structures busy_configuring flag set. It's parameters are:
- *
- * disk = This is the disk to be deregistered
- * drv = This is the drive_info_struct associated with the disk to be
- * deregistered. It contains information about the disk used
- * by the driver.
- * clear_all = This flag determines whether or not the disk information
- * is going to be completely cleared out and the highest_lun
- * reset. Sometimes we want to clear out information about
- * the disk in preparation for re-adding it. In this case
- * the highest_lun should be left unchanged and the LunID
- * should not be cleared.
- * via_ioctl
- * This indicates whether we've reached this path via ioctl.
- * This affects the maximum usage count allowed for c0d0 to be messed with.
- * If this path is reached via ioctl(), then the max_usage_count will
- * be 1, as the process calling ioctl() has got to have the device open.
- * If we get here via sysfs, then the max usage count will be zero.
-*/
-static int deregister_disk(ctlr_info_t *h, int drv_index,
- int clear_all, int via_ioctl)
-{
- int i;
- struct gendisk *disk;
- drive_info_struct *drv;
- int recalculate_highest_lun;
-
- if (!capable(CAP_SYS_RAWIO))
- return -EPERM;
-
- drv = h->drv[drv_index];
- disk = h->gendisk[drv_index];
-
- /* make sure logical volume is NOT is use */
- if (clear_all || (h->gendisk[0] == disk)) {
- if (drv->usage_count > via_ioctl)
- return -EBUSY;
- } else if (drv->usage_count > 0)
- return -EBUSY;
-
- recalculate_highest_lun = (drv == h->drv[h->highest_lun]);
-
- /* invalidate the devices and deregister the disk. If it is disk
- * zero do not deregister it but just zero out it's values. This
- * allows us to delete disk zero but keep the controller registered.
- */
- if (h->gendisk[0] != disk) {
- struct request_queue *q = disk->queue;
- if (disk->flags & GENHD_FL_UP) {
- cciss_destroy_ld_sysfs_entry(h, drv_index, 0);
- del_gendisk(disk);
- }
- if (q)
- blk_cleanup_queue(q);
- /* If clear_all is set then we are deleting the logical
- * drive, not just refreshing its info. For drives
- * other than disk 0 we will call put_disk. We do not
- * do this for disk 0 as we need it to be able to
- * configure the controller.
- */
- if (clear_all){
- /* This isn't pretty, but we need to find the
- * disk in our array and NULL our the pointer.
- * This is so that we will call alloc_disk if
- * this index is used again later.
- */
- for (i=0; i < CISS_MAX_LUN; i++){
- if (h->gendisk[i] == disk) {
- h->gendisk[i] = NULL;
- break;
- }
- }
- put_disk(disk);
- }
- } else {
- set_capacity(disk, 0);
- cciss_clear_drive_info(drv);
- }
-
- --h->num_luns;
-
- /* if it was the last disk, find the new hightest lun */
- if (clear_all && recalculate_highest_lun) {
- int newhighest = -1;
- for (i = 0; i <= h->highest_lun; i++) {
- /* if the disk has size > 0, it is available */
- if (h->drv[i] && h->drv[i]->heads)
- newhighest = i;
- }
- h->highest_lun = newhighest;
- }
- return 0;
-}
-
-static int fill_cmd(ctlr_info_t *h, CommandList_struct *c, __u8 cmd, void *buff,
- size_t size, __u8 page_code, unsigned char *scsi3addr,
- int cmd_type)
-{
- u64bit buff_dma_handle;
- int status = IO_OK;
-
- c->cmd_type = CMD_IOCTL_PEND;
- c->Header.ReplyQueue = 0;
- if (buff != NULL) {
- c->Header.SGList = 1;
- c->Header.SGTotal = 1;
- } else {
- c->Header.SGList = 0;
- c->Header.SGTotal = 0;
- }
- c->Header.Tag.lower = c->busaddr;
- memcpy(c->Header.LUN.LunAddrBytes, scsi3addr, 8);
-
- c->Request.Type.Type = cmd_type;
- if (cmd_type == TYPE_CMD) {
- switch (cmd) {
- case CISS_INQUIRY:
- /* are we trying to read a vital product page */
- if (page_code != 0) {
- c->Request.CDB[1] = 0x01;
- c->Request.CDB[2] = page_code;
- }
- c->Request.CDBLen = 6;
- c->Request.Type.Attribute = ATTR_SIMPLE;
- c->Request.Type.Direction = XFER_READ;
- c->Request.Timeout = 0;
- c->Request.CDB[0] = CISS_INQUIRY;
- c->Request.CDB[4] = size & 0xFF;
- break;
- case CISS_REPORT_LOG:
- case CISS_REPORT_PHYS:
- /* Talking to controller so It's a physical command
- mode = 00 target = 0. Nothing to write.
- */
- c->Request.CDBLen = 12;
- c->Request.Type.Attribute = ATTR_SIMPLE;
- c->Request.Type.Direction = XFER_READ;
- c->Request.Timeout = 0;
- c->Request.CDB[0] = cmd;
- c->Request.CDB[6] = (size >> 24) & 0xFF; /* MSB */
- c->Request.CDB[7] = (size >> 16) & 0xFF;
- c->Request.CDB[8] = (size >> 8) & 0xFF;
- c->Request.CDB[9] = size & 0xFF;
- break;
-
- case CCISS_READ_CAPACITY:
- c->Request.CDBLen = 10;
- c->Request.Type.Attribute = ATTR_SIMPLE;
- c->Request.Type.Direction = XFER_READ;
- c->Request.Timeout = 0;
- c->Request.CDB[0] = cmd;
- break;
- case CCISS_READ_CAPACITY_16:
- c->Request.CDBLen = 16;
- c->Request.Type.Attribute = ATTR_SIMPLE;
- c->Request.Type.Direction = XFER_READ;
- c->Request.Timeout = 0;
- c->Request.CDB[0] = cmd;
- c->Request.CDB[1] = 0x10;
- c->Request.CDB[10] = (size >> 24) & 0xFF;
- c->Request.CDB[11] = (size >> 16) & 0xFF;
- c->Request.CDB[12] = (size >> 8) & 0xFF;
- c->Request.CDB[13] = size & 0xFF;
- c->Request.Timeout = 0;
- c->Request.CDB[0] = cmd;
- break;
- case CCISS_CACHE_FLUSH:
- c->Request.CDBLen = 12;
- c->Request.Type.Attribute = ATTR_SIMPLE;
- c->Request.Type.Direction = XFER_WRITE;
- c->Request.Timeout = 0;
- c->Request.CDB[0] = BMIC_WRITE;
- c->Request.CDB[6] = BMIC_CACHE_FLUSH;
- c->Request.CDB[7] = (size >> 8) & 0xFF;
- c->Request.CDB[8] = size & 0xFF;
- break;
- case TEST_UNIT_READY:
- c->Request.CDBLen = 6;
- c->Request.Type.Attribute = ATTR_SIMPLE;
- c->Request.Type.Direction = XFER_NONE;
- c->Request.Timeout = 0;
- break;
- default:
- dev_warn(&h->pdev->dev, "Unknown Command 0x%c\n", cmd);
- return IO_ERROR;
- }
- } else if (cmd_type == TYPE_MSG) {
- switch (cmd) {
- case CCISS_ABORT_MSG:
- c->Request.CDBLen = 12;
- c->Request.Type.Attribute = ATTR_SIMPLE;
- c->Request.Type.Direction = XFER_WRITE;
- c->Request.Timeout = 0;
- c->Request.CDB[0] = cmd; /* abort */
- c->Request.CDB[1] = 0; /* abort a command */
- /* buff contains the tag of the command to abort */
- memcpy(&c->Request.CDB[4], buff, 8);
- break;
- case CCISS_RESET_MSG:
- c->Request.CDBLen = 16;
- c->Request.Type.Attribute = ATTR_SIMPLE;
- c->Request.Type.Direction = XFER_NONE;
- c->Request.Timeout = 0;
- memset(&c->Request.CDB[0], 0, sizeof(c->Request.CDB));
- c->Request.CDB[0] = cmd; /* reset */
- c->Request.CDB[1] = CCISS_RESET_TYPE_TARGET;
- break;
- case CCISS_NOOP_MSG:
- c->Request.CDBLen = 1;
- c->Request.Type.Attribute = ATTR_SIMPLE;
- c->Request.Type.Direction = XFER_WRITE;
- c->Request.Timeout = 0;
- c->Request.CDB[0] = cmd;
- break;
- default:
- dev_warn(&h->pdev->dev,
- "unknown message type %d\n", cmd);
- return IO_ERROR;
- }
- } else {
- dev_warn(&h->pdev->dev, "unknown command type %d\n", cmd_type);
- return IO_ERROR;
- }
- /* Fill in the scatter gather information */
- if (size > 0) {
- buff_dma_handle.val = (__u64) pci_map_single(h->pdev,
- buff, size,
- PCI_DMA_BIDIRECTIONAL);
- c->SG[0].Addr.lower = buff_dma_handle.val32.lower;
- c->SG[0].Addr.upper = buff_dma_handle.val32.upper;
- c->SG[0].Len = size;
- c->SG[0].Ext = 0; /* we are not chaining */
- }
- return status;
-}
-
-static int cciss_send_reset(ctlr_info_t *h, unsigned char *scsi3addr,
- u8 reset_type)
-{
- CommandList_struct *c;
- int return_status;
-
- c = cmd_alloc(h);
- if (!c)
- return -ENOMEM;
- return_status = fill_cmd(h, c, CCISS_RESET_MSG, NULL, 0, 0,
- CTLR_LUNID, TYPE_MSG);
- c->Request.CDB[1] = reset_type; /* fill_cmd defaults to target reset */
- if (return_status != IO_OK) {
- cmd_special_free(h, c);
- return return_status;
- }
- c->waiting = NULL;
- enqueue_cmd_and_start_io(h, c);
- /* Don't wait for completion, the reset won't complete. Don't free
- * the command either. This is the last command we will send before
- * re-initializing everything, so it doesn't matter and won't leak.
- */
- return 0;
-}
-
-static int check_target_status(ctlr_info_t *h, CommandList_struct *c)
-{
- switch (c->err_info->ScsiStatus) {
- case SAM_STAT_GOOD:
- return IO_OK;
- case SAM_STAT_CHECK_CONDITION:
- switch (0xf & c->err_info->SenseInfo[2]) {
- case 0: return IO_OK; /* no sense */
- case 1: return IO_OK; /* recovered error */
- default:
- if (check_for_unit_attention(h, c))
- return IO_NEEDS_RETRY;
- dev_warn(&h->pdev->dev, "cmd 0x%02x "
- "check condition, sense key = 0x%02x\n",
- c->Request.CDB[0], c->err_info->SenseInfo[2]);
- }
- break;
- default:
- dev_warn(&h->pdev->dev, "cmd 0x%02x"
- "scsi status = 0x%02x\n",
- c->Request.CDB[0], c->err_info->ScsiStatus);
- break;
- }
- return IO_ERROR;
-}
-
-static int process_sendcmd_error(ctlr_info_t *h, CommandList_struct *c)
-{
- int return_status = IO_OK;
-
- if (c->err_info->CommandStatus == CMD_SUCCESS)
- return IO_OK;
-
- switch (c->err_info->CommandStatus) {
- case CMD_TARGET_STATUS:
- return_status = check_target_status(h, c);
- break;
- case CMD_DATA_UNDERRUN:
- case CMD_DATA_OVERRUN:
- /* expected for inquiry and report lun commands */
- break;
- case CMD_INVALID:
- dev_warn(&h->pdev->dev, "cmd 0x%02x is "
- "reported invalid\n", c->Request.CDB[0]);
- return_status = IO_ERROR;
- break;
- case CMD_PROTOCOL_ERR:
- dev_warn(&h->pdev->dev, "cmd 0x%02x has "
- "protocol error\n", c->Request.CDB[0]);
- return_status = IO_ERROR;
- break;
- case CMD_HARDWARE_ERR:
- dev_warn(&h->pdev->dev, "cmd 0x%02x had "
- " hardware error\n", c->Request.CDB[0]);
- return_status = IO_ERROR;
- break;
- case CMD_CONNECTION_LOST:
- dev_warn(&h->pdev->dev, "cmd 0x%02x had "
- "connection lost\n", c->Request.CDB[0]);
- return_status = IO_ERROR;
- break;
- case CMD_ABORTED:
- dev_warn(&h->pdev->dev, "cmd 0x%02x was "
- "aborted\n", c->Request.CDB[0]);
- return_status = IO_ERROR;
- break;
- case CMD_ABORT_FAILED:
- dev_warn(&h->pdev->dev, "cmd 0x%02x reports "
- "abort failed\n", c->Request.CDB[0]);
- return_status = IO_ERROR;
- break;
- case CMD_UNSOLICITED_ABORT:
- dev_warn(&h->pdev->dev, "unsolicited abort 0x%02x\n",
- c->Request.CDB[0]);
- return_status = IO_NEEDS_RETRY;
- break;
- case CMD_UNABORTABLE:
- dev_warn(&h->pdev->dev, "cmd unabortable\n");
- return_status = IO_ERROR;
- break;
- default:
- dev_warn(&h->pdev->dev, "cmd 0x%02x returned "
- "unknown status %x\n", c->Request.CDB[0],
- c->err_info->CommandStatus);
- return_status = IO_ERROR;
- }
- return return_status;
-}
-
-static int sendcmd_withirq_core(ctlr_info_t *h, CommandList_struct *c,
- int attempt_retry)
-{
- DECLARE_COMPLETION_ONSTACK(wait);
- u64bit buff_dma_handle;
- int return_status = IO_OK;
-
-resend_cmd2:
- c->waiting = &wait;
- enqueue_cmd_and_start_io(h, c);
-
- wait_for_completion(&wait);
-
- if (c->err_info->CommandStatus == 0 || !attempt_retry)
- goto command_done;
-
- return_status = process_sendcmd_error(h, c);
-
- if (return_status == IO_NEEDS_RETRY &&
- c->retry_count < MAX_CMD_RETRIES) {
- dev_warn(&h->pdev->dev, "retrying 0x%02x\n",
- c->Request.CDB[0]);
- c->retry_count++;
- /* erase the old error information */
- memset(c->err_info, 0, sizeof(ErrorInfo_struct));
- return_status = IO_OK;
- reinit_completion(&wait);
- goto resend_cmd2;
- }
-
-command_done:
- /* unlock the buffers from DMA */
- buff_dma_handle.val32.lower = c->SG[0].Addr.lower;
- buff_dma_handle.val32.upper = c->SG[0].Addr.upper;
- pci_unmap_single(h->pdev, (dma_addr_t) buff_dma_handle.val,
- c->SG[0].Len, PCI_DMA_BIDIRECTIONAL);
- return return_status;
-}
-
-static int sendcmd_withirq(ctlr_info_t *h, __u8 cmd, void *buff, size_t size,
- __u8 page_code, unsigned char scsi3addr[],
- int cmd_type)
-{
- CommandList_struct *c;
- int return_status;
-
- c = cmd_special_alloc(h);
- if (!c)
- return -ENOMEM;
- return_status = fill_cmd(h, c, cmd, buff, size, page_code,
- scsi3addr, cmd_type);
- if (return_status == IO_OK)
- return_status = sendcmd_withirq_core(h, c, 1);
-
- cmd_special_free(h, c);
- return return_status;
-}
-
-static void cciss_geometry_inquiry(ctlr_info_t *h, int logvol,
- sector_t total_size,
- unsigned int block_size,
- InquiryData_struct *inq_buff,
- drive_info_struct *drv)
-{
- int return_code;
- unsigned long t;
- unsigned char scsi3addr[8];
-
- memset(inq_buff, 0, sizeof(InquiryData_struct));
- log_unit_to_scsi3addr(h, scsi3addr, logvol);
- return_code = sendcmd_withirq(h, CISS_INQUIRY, inq_buff,
- sizeof(*inq_buff), 0xC1, scsi3addr, TYPE_CMD);
- if (return_code == IO_OK) {
- if (inq_buff->data_byte[8] == 0xFF) {
- dev_warn(&h->pdev->dev,
- "reading geometry failed, volume "
- "does not support reading geometry\n");
- drv->heads = 255;
- drv->sectors = 32; /* Sectors per track */
- drv->cylinders = total_size + 1;
- drv->raid_level = RAID_UNKNOWN;
- } else {
- drv->heads = inq_buff->data_byte[6];
- drv->sectors = inq_buff->data_byte[7];
- drv->cylinders = (inq_buff->data_byte[4] & 0xff) << 8;
- drv->cylinders += inq_buff->data_byte[5];
- drv->raid_level = inq_buff->data_byte[8];
- }
- drv->block_size = block_size;
- drv->nr_blocks = total_size + 1;
- t = drv->heads * drv->sectors;
- if (t > 1) {
- sector_t real_size = total_size + 1;
- unsigned long rem = sector_div(real_size, t);
- if (rem)
- real_size++;
- drv->cylinders = real_size;
- }
- } else { /* Get geometry failed */
- dev_warn(&h->pdev->dev, "reading geometry failed\n");
- }
-}
-
-static void
-cciss_read_capacity(ctlr_info_t *h, int logvol, sector_t *total_size,
- unsigned int *block_size)
-{
- ReadCapdata_struct *buf;
- int return_code;
- unsigned char scsi3addr[8];
-
- buf = kzalloc(sizeof(ReadCapdata_struct), GFP_KERNEL);
- if (!buf) {
- dev_warn(&h->pdev->dev, "out of memory\n");
- return;
- }
-
- log_unit_to_scsi3addr(h, scsi3addr, logvol);
- return_code = sendcmd_withirq(h, CCISS_READ_CAPACITY, buf,
- sizeof(ReadCapdata_struct), 0, scsi3addr, TYPE_CMD);
- if (return_code == IO_OK) {
- *total_size = be32_to_cpu(*(__be32 *) buf->total_size);
- *block_size = be32_to_cpu(*(__be32 *) buf->block_size);
- } else { /* read capacity command failed */
- dev_warn(&h->pdev->dev, "read capacity failed\n");
- *total_size = 0;
- *block_size = BLOCK_SIZE;
- }
- kfree(buf);
-}
-
-static void cciss_read_capacity_16(ctlr_info_t *h, int logvol,
- sector_t *total_size, unsigned int *block_size)
-{
- ReadCapdata_struct_16 *buf;
- int return_code;
- unsigned char scsi3addr[8];
-
- buf = kzalloc(sizeof(ReadCapdata_struct_16), GFP_KERNEL);
- if (!buf) {
- dev_warn(&h->pdev->dev, "out of memory\n");
- return;
- }
-
- log_unit_to_scsi3addr(h, scsi3addr, logvol);
- return_code = sendcmd_withirq(h, CCISS_READ_CAPACITY_16,
- buf, sizeof(ReadCapdata_struct_16),
- 0, scsi3addr, TYPE_CMD);
- if (return_code == IO_OK) {
- *total_size = be64_to_cpu(*(__be64 *) buf->total_size);
- *block_size = be32_to_cpu(*(__be32 *) buf->block_size);
- } else { /* read capacity command failed */
- dev_warn(&h->pdev->dev, "read capacity failed\n");
- *total_size = 0;
- *block_size = BLOCK_SIZE;
- }
- dev_info(&h->pdev->dev, " blocks= %llu block_size= %d\n",
- (unsigned long long)*total_size+1, *block_size);
- kfree(buf);
-}
-
-static int cciss_revalidate(struct gendisk *disk)
-{
- ctlr_info_t *h = get_host(disk);
- drive_info_struct *drv = get_drv(disk);
- int logvol;
- int FOUND = 0;
- unsigned int block_size;
- sector_t total_size;
- InquiryData_struct *inq_buff = NULL;
-
- for (logvol = 0; logvol <= h->highest_lun; logvol++) {
- if (!h->drv[logvol])
- continue;
- if (memcmp(h->drv[logvol]->LunID, drv->LunID,
- sizeof(drv->LunID)) == 0) {
- FOUND = 1;
- break;
- }
- }
-
- if (!FOUND)
- return 1;
-
- inq_buff = kmalloc(sizeof(InquiryData_struct), GFP_KERNEL);
- if (inq_buff == NULL) {
- dev_warn(&h->pdev->dev, "out of memory\n");
- return 1;
- }
- if (h->cciss_read == CCISS_READ_10) {
- cciss_read_capacity(h, logvol,
- &total_size, &block_size);
- } else {
- cciss_read_capacity_16(h, logvol,
- &total_size, &block_size);
- }
- cciss_geometry_inquiry(h, logvol, total_size, block_size,
- inq_buff, drv);
-
- blk_queue_logical_block_size(drv->queue, drv->block_size);
- set_capacity(disk, drv->nr_blocks);
-
- kfree(inq_buff);
- return 0;
-}
-
-/*
- * Map (physical) PCI mem into (virtual) kernel space
- */
-static void __iomem *remap_pci_mem(ulong base, ulong size)
-{
- ulong page_base = ((ulong) base) & PAGE_MASK;
- ulong page_offs = ((ulong) base) - page_base;
- void __iomem *page_remapped = ioremap(page_base, page_offs + size);
-
- return page_remapped ? (page_remapped + page_offs) : NULL;
-}
-
-/*
- * Takes jobs of the Q and sends them to the hardware, then puts it on
- * the Q to wait for completion.
- */
-static void start_io(ctlr_info_t *h)
-{
- CommandList_struct *c;
-
- while (!list_empty(&h->reqQ)) {
- c = list_entry(h->reqQ.next, CommandList_struct, list);
- /* can't do anything if fifo is full */
- if ((h->access.fifo_full(h))) {
- dev_warn(&h->pdev->dev, "fifo full\n");
- break;
- }
-
- /* Get the first entry from the Request Q */
- removeQ(c);
- h->Qdepth--;
-
- /* Tell the controller execute command */
- h->access.submit_command(h, c);
-
- /* Put job onto the completed Q */
- addQ(&h->cmpQ, c);
- }
-}
-
-/* Assumes that h->lock is held. */
-/* Zeros out the error record and then resends the command back */
-/* to the controller */
-static inline void resend_cciss_cmd(ctlr_info_t *h, CommandList_struct *c)
-{
- /* erase the old error information */
- memset(c->err_info, 0, sizeof(ErrorInfo_struct));
-
- /* add it to software queue and then send it to the controller */
- addQ(&h->reqQ, c);
- h->Qdepth++;
- if (h->Qdepth > h->maxQsinceinit)
- h->maxQsinceinit = h->Qdepth;
-
- start_io(h);
-}
-
-static inline unsigned int make_status_bytes(unsigned int scsi_status_byte,
- unsigned int msg_byte, unsigned int host_byte,
- unsigned int driver_byte)
-{
- /* inverse of macros in scsi.h */
- return (scsi_status_byte & 0xff) |
- ((msg_byte & 0xff) << 8) |
- ((host_byte & 0xff) << 16) |
- ((driver_byte & 0xff) << 24);
-}
-
-static inline int evaluate_target_status(ctlr_info_t *h,
- CommandList_struct *cmd, int *retry_cmd)
-{
- unsigned char sense_key;
- unsigned char status_byte, msg_byte, host_byte, driver_byte;
- int error_value;
-
- *retry_cmd = 0;
- /* If we get in here, it means we got "target status", that is, scsi status */
- status_byte = cmd->err_info->ScsiStatus;
- driver_byte = DRIVER_OK;
- msg_byte = cmd->err_info->CommandStatus; /* correct? seems too device specific */
-
- if (blk_rq_is_passthrough(cmd->rq))
- host_byte = DID_PASSTHROUGH;
- else
- host_byte = DID_OK;
-
- error_value = make_status_bytes(status_byte, msg_byte,
- host_byte, driver_byte);
-
- if (cmd->err_info->ScsiStatus != SAM_STAT_CHECK_CONDITION) {
- if (!blk_rq_is_passthrough(cmd->rq))
- dev_warn(&h->pdev->dev, "cmd %p "
- "has SCSI Status 0x%x\n",
- cmd, cmd->err_info->ScsiStatus);
- return error_value;
- }
-
- /* check the sense key */
- sense_key = 0xf & cmd->err_info->SenseInfo[2];
- /* no status or recovered error */
- if (((sense_key == 0x0) || (sense_key == 0x1)) &&
- !blk_rq_is_passthrough(cmd->rq))
- error_value = 0;
-
- if (check_for_unit_attention(h, cmd)) {
- *retry_cmd = !blk_rq_is_passthrough(cmd->rq);
- return 0;
- }
-
- /* Not SG_IO or similar? */
- if (!blk_rq_is_passthrough(cmd->rq)) {
- if (error_value != 0)
- dev_warn(&h->pdev->dev, "cmd %p has CHECK CONDITION"
- " sense key = 0x%x\n", cmd, sense_key);
- return error_value;
- }
-
- scsi_req(cmd->rq)->sense_len = cmd->err_info->SenseLen;
- return error_value;
-}
-
-/* checks the status of the job and calls complete buffers to mark all
- * buffers for the completed job. Note that this function does not need
- * to hold the hba/queue lock.
- */
-static inline void complete_command(ctlr_info_t *h, CommandList_struct *cmd,
- int timeout)
-{
- int retry_cmd = 0;
- struct request *rq = cmd->rq;
- struct scsi_request *sreq = scsi_req(rq);
-
- sreq->result = 0;
-
- if (timeout)
- sreq->result = make_status_bytes(0, 0, 0, DRIVER_TIMEOUT);
-
- if (cmd->err_info->CommandStatus == 0) /* no error has occurred */
- goto after_error_processing;
-
- switch (cmd->err_info->CommandStatus) {
- case CMD_TARGET_STATUS:
- sreq->result = evaluate_target_status(h, cmd, &retry_cmd);
- break;
- case CMD_DATA_UNDERRUN:
- if (!blk_rq_is_passthrough(cmd->rq)) {
- dev_warn(&h->pdev->dev, "cmd %p has"
- " completed with data underrun "
- "reported\n", cmd);
- }
- break;
- case CMD_DATA_OVERRUN:
- if (!blk_rq_is_passthrough(cmd->rq))
- dev_warn(&h->pdev->dev, "cciss: cmd %p has"
- " completed with data overrun "
- "reported\n", cmd);
- break;
- case CMD_INVALID:
- dev_warn(&h->pdev->dev, "cciss: cmd %p is "
- "reported invalid\n", cmd);
- sreq->result = make_status_bytes(SAM_STAT_GOOD,
- cmd->err_info->CommandStatus, DRIVER_OK,
- blk_rq_is_passthrough(cmd->rq) ?
- DID_PASSTHROUGH : DID_ERROR);
- break;
- case CMD_PROTOCOL_ERR:
- dev_warn(&h->pdev->dev, "cciss: cmd %p has "
- "protocol error\n", cmd);
- sreq->result = make_status_bytes(SAM_STAT_GOOD,
- cmd->err_info->CommandStatus, DRIVER_OK,
- blk_rq_is_passthrough(cmd->rq) ?
- DID_PASSTHROUGH : DID_ERROR);
- break;
- case CMD_HARDWARE_ERR:
- dev_warn(&h->pdev->dev, "cciss: cmd %p had "
- " hardware error\n", cmd);
- sreq->result = make_status_bytes(SAM_STAT_GOOD,
- cmd->err_info->CommandStatus, DRIVER_OK,
- blk_rq_is_passthrough(cmd->rq) ?
- DID_PASSTHROUGH : DID_ERROR);
- break;
- case CMD_CONNECTION_LOST:
- dev_warn(&h->pdev->dev, "cciss: cmd %p had "
- "connection lost\n", cmd);
- sreq->result = make_status_bytes(SAM_STAT_GOOD,
- cmd->err_info->CommandStatus, DRIVER_OK,
- blk_rq_is_passthrough(cmd->rq) ?
- DID_PASSTHROUGH : DID_ERROR);
- break;
- case CMD_ABORTED:
- dev_warn(&h->pdev->dev, "cciss: cmd %p was "
- "aborted\n", cmd);
- sreq->result = make_status_bytes(SAM_STAT_GOOD,
- cmd->err_info->CommandStatus, DRIVER_OK,
- blk_rq_is_passthrough(cmd->rq) ?
- DID_PASSTHROUGH : DID_ABORT);
- break;
- case CMD_ABORT_FAILED:
- dev_warn(&h->pdev->dev, "cciss: cmd %p reports "
- "abort failed\n", cmd);
- sreq->result = make_status_bytes(SAM_STAT_GOOD,
- cmd->err_info->CommandStatus, DRIVER_OK,
- blk_rq_is_passthrough(cmd->rq) ?
- DID_PASSTHROUGH : DID_ERROR);
- break;
- case CMD_UNSOLICITED_ABORT:
- dev_warn(&h->pdev->dev, "cciss%d: unsolicited "
- "abort %p\n", h->ctlr, cmd);
- if (cmd->retry_count < MAX_CMD_RETRIES) {
- retry_cmd = 1;
- dev_warn(&h->pdev->dev, "retrying %p\n", cmd);
- cmd->retry_count++;
- } else
- dev_warn(&h->pdev->dev,
- "%p retried too many times\n", cmd);
- sreq->result = make_status_bytes(SAM_STAT_GOOD,
- cmd->err_info->CommandStatus, DRIVER_OK,
- blk_rq_is_passthrough(cmd->rq) ?
- DID_PASSTHROUGH : DID_ABORT);
- break;
- case CMD_TIMEOUT:
- dev_warn(&h->pdev->dev, "cmd %p timedout\n", cmd);
- sreq->result = make_status_bytes(SAM_STAT_GOOD,
- cmd->err_info->CommandStatus, DRIVER_OK,
- blk_rq_is_passthrough(cmd->rq) ?
- DID_PASSTHROUGH : DID_ERROR);
- break;
- case CMD_UNABORTABLE:
- dev_warn(&h->pdev->dev, "cmd %p unabortable\n", cmd);
- sreq->result = make_status_bytes(SAM_STAT_GOOD,
- cmd->err_info->CommandStatus, DRIVER_OK,
- blk_rq_is_passthrough(cmd->rq) ?
- DID_PASSTHROUGH : DID_ERROR);
- break;
- default:
- dev_warn(&h->pdev->dev, "cmd %p returned "
- "unknown status %x\n", cmd,
- cmd->err_info->CommandStatus);
- sreq->result = make_status_bytes(SAM_STAT_GOOD,
- cmd->err_info->CommandStatus, DRIVER_OK,
- blk_rq_is_passthrough(cmd->rq) ?
- DID_PASSTHROUGH : DID_ERROR);
- }
-
-after_error_processing:
-
- /* We need to return this command */
- if (retry_cmd) {
- resend_cciss_cmd(h, cmd);
- return;
- }
- cmd->rq->completion_data = cmd;
- blk_complete_request(cmd->rq);
-}
-
-static inline u32 cciss_tag_contains_index(u32 tag)
-{
-#define DIRECT_LOOKUP_BIT 0x10
- return tag & DIRECT_LOOKUP_BIT;
-}
-
-static inline u32 cciss_tag_to_index(u32 tag)
-{
-#define DIRECT_LOOKUP_SHIFT 5
- return tag >> DIRECT_LOOKUP_SHIFT;
-}
-
-static inline u32 cciss_tag_discard_error_bits(ctlr_info_t *h, u32 tag)
-{
-#define CCISS_PERF_ERROR_BITS ((1 << DIRECT_LOOKUP_SHIFT) - 1)
-#define CCISS_SIMPLE_ERROR_BITS 0x03
- if (likely(h->transMethod & CFGTBL_Trans_Performant))
- return tag & ~CCISS_PERF_ERROR_BITS;
- return tag & ~CCISS_SIMPLE_ERROR_BITS;
-}
-
-static inline void cciss_mark_tag_indexed(u32 *tag)
-{
- *tag |= DIRECT_LOOKUP_BIT;
-}
-
-static inline void cciss_set_tag_index(u32 *tag, u32 index)
-{
- *tag |= (index << DIRECT_LOOKUP_SHIFT);
-}
-
-/*
- * Get a request and submit it to the controller.
- */
-static void do_cciss_request(struct request_queue *q)
-{
- ctlr_info_t *h = q->queuedata;
- CommandList_struct *c;
- sector_t start_blk;
- int seg;
- struct request *creq;
- u64bit temp64;
- struct scatterlist *tmp_sg;
- SGDescriptor_struct *curr_sg;
- drive_info_struct *drv;
- int i, dir;
- int sg_index = 0;
- int chained = 0;
-
- queue:
- creq = blk_peek_request(q);
- if (!creq)
- goto startio;
-
- BUG_ON(creq->nr_phys_segments > h->maxsgentries);
-
- c = cmd_alloc(h);
- if (!c)
- goto full;
-
- blk_start_request(creq);
-
- tmp_sg = h->scatter_list[c->cmdindex];
- spin_unlock_irq(q->queue_lock);
-
- c->cmd_type = CMD_RWREQ;
- c->rq = creq;
-
- /* fill in the request */
- drv = creq->rq_disk->private_data;
- c->Header.ReplyQueue = 0; /* unused in simple mode */
- /* got command from pool, so use the command block index instead */
- /* for direct lookups. */
- /* The first 2 bits are reserved for controller error reporting. */
- cciss_set_tag_index(&c->Header.Tag.lower, c->cmdindex);
- cciss_mark_tag_indexed(&c->Header.Tag.lower);
- memcpy(&c->Header.LUN, drv->LunID, sizeof(drv->LunID));
- c->Request.CDBLen = 10; /* 12 byte commands not in FW yet; */
- c->Request.Type.Type = TYPE_CMD; /* It is a command. */
- c->Request.Type.Attribute = ATTR_SIMPLE;
- c->Request.Type.Direction =
- (rq_data_dir(creq) == READ) ? XFER_READ : XFER_WRITE;
- c->Request.Timeout = 0; /* Don't time out */
- c->Request.CDB[0] =
- (rq_data_dir(creq) == READ) ? h->cciss_read : h->cciss_write;
- start_blk = blk_rq_pos(creq);
- dev_dbg(&h->pdev->dev, "sector =%d nr_sectors=%d\n",
- (int)blk_rq_pos(creq), (int)blk_rq_sectors(creq));
- sg_init_table(tmp_sg, h->maxsgentries);
- seg = blk_rq_map_sg(q, creq, tmp_sg);
-
- /* get the DMA records for the setup */
- if (c->Request.Type.Direction == XFER_READ)
- dir = PCI_DMA_FROMDEVICE;
- else
- dir = PCI_DMA_TODEVICE;
-
- curr_sg = c->SG;
- sg_index = 0;
- chained = 0;
-
- for (i = 0; i < seg; i++) {
- if (((sg_index+1) == (h->max_cmd_sgentries)) &&
- !chained && ((seg - i) > 1)) {
- /* Point to next chain block. */
- curr_sg = h->cmd_sg_list[c->cmdindex];
- sg_index = 0;
- chained = 1;
- }
- curr_sg[sg_index].Len = tmp_sg[i].length;
- temp64.val = (__u64) pci_map_page(h->pdev, sg_page(&tmp_sg[i]),
- tmp_sg[i].offset,
- tmp_sg[i].length, dir);
- if (dma_mapping_error(&h->pdev->dev, temp64.val)) {
- dev_warn(&h->pdev->dev,
- "%s: error mapping page for DMA\n", __func__);
- scsi_req(creq)->result =
- make_status_bytes(SAM_STAT_GOOD, 0, DRIVER_OK,
- DID_SOFT_ERROR);
- cmd_free(h, c);
- return;
- }
- curr_sg[sg_index].Addr.lower = temp64.val32.lower;
- curr_sg[sg_index].Addr.upper = temp64.val32.upper;
- curr_sg[sg_index].Ext = 0; /* we are not chaining */
- ++sg_index;
- }
- if (chained) {
- if (cciss_map_sg_chain_block(h, c, h->cmd_sg_list[c->cmdindex],
- (seg - (h->max_cmd_sgentries - 1)) *
- sizeof(SGDescriptor_struct))) {
- scsi_req(creq)->result =
- make_status_bytes(SAM_STAT_GOOD, 0, DRIVER_OK,
- DID_SOFT_ERROR);
- cmd_free(h, c);
- return;
- }
- }
-
- /* track how many SG entries we are using */
- if (seg > h->maxSG)
- h->maxSG = seg;
-
- dev_dbg(&h->pdev->dev, "Submitting %u sectors in %d segments "
- "chained[%d]\n",
- blk_rq_sectors(creq), seg, chained);
-
- c->Header.SGTotal = seg + chained;
- if (seg <= h->max_cmd_sgentries)
- c->Header.SGList = c->Header.SGTotal;
- else
- c->Header.SGList = h->max_cmd_sgentries;
- set_performant_mode(h, c);
-
- switch (req_op(creq)) {
- case REQ_OP_READ:
- case REQ_OP_WRITE:
- if(h->cciss_read == CCISS_READ_10) {
- c->Request.CDB[1] = 0;
- c->Request.CDB[2] = (start_blk >> 24) & 0xff; /* MSB */
- c->Request.CDB[3] = (start_blk >> 16) & 0xff;
- c->Request.CDB[4] = (start_blk >> 8) & 0xff;
- c->Request.CDB[5] = start_blk & 0xff;
- c->Request.CDB[6] = 0; /* (sect >> 24) & 0xff; MSB */
- c->Request.CDB[7] = (blk_rq_sectors(creq) >> 8) & 0xff;
- c->Request.CDB[8] = blk_rq_sectors(creq) & 0xff;
- c->Request.CDB[9] = c->Request.CDB[11] = c->Request.CDB[12] = 0;
- } else {
- u32 upper32 = upper_32_bits(start_blk);
-
- c->Request.CDBLen = 16;
- c->Request.CDB[1]= 0;
- c->Request.CDB[2]= (upper32 >> 24) & 0xff; /* MSB */
- c->Request.CDB[3]= (upper32 >> 16) & 0xff;
- c->Request.CDB[4]= (upper32 >> 8) & 0xff;
- c->Request.CDB[5]= upper32 & 0xff;
- c->Request.CDB[6]= (start_blk >> 24) & 0xff;
- c->Request.CDB[7]= (start_blk >> 16) & 0xff;
- c->Request.CDB[8]= (start_blk >> 8) & 0xff;
- c->Request.CDB[9]= start_blk & 0xff;
- c->Request.CDB[10]= (blk_rq_sectors(creq) >> 24) & 0xff;
- c->Request.CDB[11]= (blk_rq_sectors(creq) >> 16) & 0xff;
- c->Request.CDB[12]= (blk_rq_sectors(creq) >> 8) & 0xff;
- c->Request.CDB[13]= blk_rq_sectors(creq) & 0xff;
- c->Request.CDB[14] = c->Request.CDB[15] = 0;
- }
- break;
- case REQ_OP_SCSI_IN:
- case REQ_OP_SCSI_OUT:
- c->Request.CDBLen = scsi_req(creq)->cmd_len;
- memcpy(c->Request.CDB, scsi_req(creq)->cmd, BLK_MAX_CDB);
- scsi_req(creq)->sense = c->err_info->SenseInfo;
- break;
- default:
- dev_warn(&h->pdev->dev, "bad request type %d\n",
- creq->cmd_flags);
- BUG();
- }
-
- spin_lock_irq(q->queue_lock);
-
- addQ(&h->reqQ, c);
- h->Qdepth++;
- if (h->Qdepth > h->maxQsinceinit)
- h->maxQsinceinit = h->Qdepth;
-
- goto queue;
-full:
- blk_stop_queue(q);
-startio:
- /* We will already have the driver lock here so not need
- * to lock it.
- */
- start_io(h);
-}
-
-static inline unsigned long get_next_completion(ctlr_info_t *h)
-{
- return h->access.command_completed(h);
-}
-
-static inline int interrupt_pending(ctlr_info_t *h)
-{
- return h->access.intr_pending(h);
-}
-
-static inline long interrupt_not_for_us(ctlr_info_t *h)
-{
- return ((h->access.intr_pending(h) == 0) ||
- (h->interrupts_enabled == 0));
-}
-
-static inline int bad_tag(ctlr_info_t *h, u32 tag_index,
- u32 raw_tag)
-{
- if (unlikely(tag_index >= h->nr_cmds)) {
- dev_warn(&h->pdev->dev, "bad tag 0x%08x ignored.\n", raw_tag);
- return 1;
- }
- return 0;
-}
-
-static inline void finish_cmd(ctlr_info_t *h, CommandList_struct *c,
- u32 raw_tag)
-{
- removeQ(c);
- if (likely(c->cmd_type == CMD_RWREQ))
- complete_command(h, c, 0);
- else if (c->cmd_type == CMD_IOCTL_PEND)
- complete(c->waiting);
-#ifdef CONFIG_CISS_SCSI_TAPE
- else if (c->cmd_type == CMD_SCSI)
- complete_scsi_command(c, 0, raw_tag);
-#endif
-}
-
-static inline u32 next_command(ctlr_info_t *h)
-{
- u32 a;
-
- if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
- return h->access.command_completed(h);
-
- if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) {
- a = *(h->reply_pool_head); /* Next cmd in ring buffer */
- (h->reply_pool_head)++;
- h->commands_outstanding--;
- } else {
- a = FIFO_EMPTY;
- }
- /* Check for wraparound */
- if (h->reply_pool_head == (h->reply_pool + h->max_commands)) {
- h->reply_pool_head = h->reply_pool;
- h->reply_pool_wraparound ^= 1;
- }
- return a;
-}
-
-/* process completion of an indexed ("direct lookup") command */
-static inline u32 process_indexed_cmd(ctlr_info_t *h, u32 raw_tag)
-{
- u32 tag_index;
- CommandList_struct *c;
-
- tag_index = cciss_tag_to_index(raw_tag);
- if (bad_tag(h, tag_index, raw_tag))
- return next_command(h);
- c = h->cmd_pool + tag_index;
- finish_cmd(h, c, raw_tag);
- return next_command(h);
-}
-
-/* process completion of a non-indexed command */
-static inline u32 process_nonindexed_cmd(ctlr_info_t *h, u32 raw_tag)
-{
- CommandList_struct *c = NULL;
- __u32 busaddr_masked, tag_masked;
-
- tag_masked = cciss_tag_discard_error_bits(h, raw_tag);
- list_for_each_entry(c, &h->cmpQ, list) {
- busaddr_masked = cciss_tag_discard_error_bits(h, c->busaddr);
- if (busaddr_masked == tag_masked) {
- finish_cmd(h, c, raw_tag);
- return next_command(h);
- }
- }
- bad_tag(h, h->nr_cmds + 1, raw_tag);
- return next_command(h);
-}
-
-/* Some controllers, like p400, will give us one interrupt
- * after a soft reset, even if we turned interrupts off.
- * Only need to check for this in the cciss_xxx_discard_completions
- * functions.
- */
-static int ignore_bogus_interrupt(ctlr_info_t *h)
-{
- if (likely(!reset_devices))
- return 0;
-
- if (likely(h->interrupts_enabled))
- return 0;
-
- dev_info(&h->pdev->dev, "Received interrupt while interrupts disabled "
- "(known firmware bug.) Ignoring.\n");
-
- return 1;
-}
-
-static irqreturn_t cciss_intx_discard_completions(int irq, void *dev_id)
-{
- ctlr_info_t *h = dev_id;
- unsigned long flags;
- u32 raw_tag;
-
- if (ignore_bogus_interrupt(h))
- return IRQ_NONE;
-
- if (interrupt_not_for_us(h))
- return IRQ_NONE;
- spin_lock_irqsave(&h->lock, flags);
- while (interrupt_pending(h)) {
- raw_tag = get_next_completion(h);
- while (raw_tag != FIFO_EMPTY)
- raw_tag = next_command(h);
- }
- spin_unlock_irqrestore(&h->lock, flags);
- return IRQ_HANDLED;
-}
-
-static irqreturn_t cciss_msix_discard_completions(int irq, void *dev_id)
-{
- ctlr_info_t *h = dev_id;
- unsigned long flags;
- u32 raw_tag;
-
- if (ignore_bogus_interrupt(h))
- return IRQ_NONE;
-
- spin_lock_irqsave(&h->lock, flags);
- raw_tag = get_next_completion(h);
- while (raw_tag != FIFO_EMPTY)
- raw_tag = next_command(h);
- spin_unlock_irqrestore(&h->lock, flags);
- return IRQ_HANDLED;
-}
-
-static irqreturn_t do_cciss_intx(int irq, void *dev_id)
-{
- ctlr_info_t *h = dev_id;
- unsigned long flags;
- u32 raw_tag;
-
- if (interrupt_not_for_us(h))
- return IRQ_NONE;
- spin_lock_irqsave(&h->lock, flags);
- while (interrupt_pending(h)) {
- raw_tag = get_next_completion(h);
- while (raw_tag != FIFO_EMPTY) {
- if (cciss_tag_contains_index(raw_tag))
- raw_tag = process_indexed_cmd(h, raw_tag);
- else
- raw_tag = process_nonindexed_cmd(h, raw_tag);
- }
- }
- spin_unlock_irqrestore(&h->lock, flags);
- return IRQ_HANDLED;
-}
-
-/* Add a second interrupt handler for MSI/MSI-X mode. In this mode we never
- * check the interrupt pending register because it is not set.
- */
-static irqreturn_t do_cciss_msix_intr(int irq, void *dev_id)
-{
- ctlr_info_t *h = dev_id;
- unsigned long flags;
- u32 raw_tag;
-
- spin_lock_irqsave(&h->lock, flags);
- raw_tag = get_next_completion(h);
- while (raw_tag != FIFO_EMPTY) {
- if (cciss_tag_contains_index(raw_tag))
- raw_tag = process_indexed_cmd(h, raw_tag);
- else
- raw_tag = process_nonindexed_cmd(h, raw_tag);
- }
- spin_unlock_irqrestore(&h->lock, flags);
- return IRQ_HANDLED;
-}
-
-/**
- * add_to_scan_list() - add controller to rescan queue
- * @h: Pointer to the controller.
- *
- * Adds the controller to the rescan queue if not already on the queue.
- *
- * returns 1 if added to the queue, 0 if skipped (could be on the
- * queue already, or the controller could be initializing or shutting
- * down).
- **/
-static int add_to_scan_list(struct ctlr_info *h)
-{
- struct ctlr_info *test_h;
- int found = 0;
- int ret = 0;
-
- if (h->busy_initializing)
- return 0;
-
- if (!mutex_trylock(&h->busy_shutting_down))
- return 0;
-
- mutex_lock(&scan_mutex);
- list_for_each_entry(test_h, &scan_q, scan_list) {
- if (test_h == h) {
- found = 1;
- break;
- }
- }
- if (!found && !h->busy_scanning) {
- reinit_completion(&h->scan_wait);
- list_add_tail(&h->scan_list, &scan_q);
- ret = 1;
- }
- mutex_unlock(&scan_mutex);
- mutex_unlock(&h->busy_shutting_down);
-
- return ret;
-}
-
-/**
- * remove_from_scan_list() - remove controller from rescan queue
- * @h: Pointer to the controller.
- *
- * Removes the controller from the rescan queue if present. Blocks if
- * the controller is currently conducting a rescan. The controller
- * can be in one of three states:
- * 1. Doesn't need a scan
- * 2. On the scan list, but not scanning yet (we remove it)
- * 3. Busy scanning (and not on the list). In this case we want to wait for
- * the scan to complete to make sure the scanning thread for this
- * controller is completely idle.
- **/
-static void remove_from_scan_list(struct ctlr_info *h)
-{
- struct ctlr_info *test_h, *tmp_h;
-
- mutex_lock(&scan_mutex);
- list_for_each_entry_safe(test_h, tmp_h, &scan_q, scan_list) {
- if (test_h == h) { /* state 2. */
- list_del(&h->scan_list);
- complete_all(&h->scan_wait);
- mutex_unlock(&scan_mutex);
- return;
- }
- }
- if (h->busy_scanning) { /* state 3. */
- mutex_unlock(&scan_mutex);
- wait_for_completion(&h->scan_wait);
- } else { /* state 1, nothing to do. */
- mutex_unlock(&scan_mutex);
- }
-}
-
-/**
- * scan_thread() - kernel thread used to rescan controllers
- * @data: Ignored.
- *
- * A kernel thread used scan for drive topology changes on
- * controllers. The thread processes only one controller at a time
- * using a queue. Controllers are added to the queue using
- * add_to_scan_list() and removed from the queue either after done
- * processing or using remove_from_scan_list().
- *
- * returns 0.
- **/
-static int scan_thread(void *data)
-{
- struct ctlr_info *h;
-
- while (1) {
- set_current_state(TASK_INTERRUPTIBLE);
- schedule();
- if (kthread_should_stop())
- break;
-
- while (1) {
- mutex_lock(&scan_mutex);
- if (list_empty(&scan_q)) {
- mutex_unlock(&scan_mutex);
- break;
- }
-
- h = list_entry(scan_q.next,
- struct ctlr_info,
- scan_list);
- list_del(&h->scan_list);
- h->busy_scanning = 1;
- mutex_unlock(&scan_mutex);
-
- rebuild_lun_table(h, 0, 0);
- complete_all(&h->scan_wait);
- mutex_lock(&scan_mutex);
- h->busy_scanning = 0;
- mutex_unlock(&scan_mutex);
- }
- }
-
- return 0;
-}
-
-static int check_for_unit_attention(ctlr_info_t *h, CommandList_struct *c)
-{
- if (c->err_info->SenseInfo[2] != UNIT_ATTENTION)
- return 0;
-
- switch (c->err_info->SenseInfo[12]) {
- case STATE_CHANGED:
- dev_warn(&h->pdev->dev, "a state change "
- "detected, command retried\n");
- return 1;
- break;
- case LUN_FAILED:
- dev_warn(&h->pdev->dev, "LUN failure "
- "detected, action required\n");
- return 1;
- break;
- case REPORT_LUNS_CHANGED:
- dev_warn(&h->pdev->dev, "report LUN data changed\n");
- /*
- * Here, we could call add_to_scan_list and wake up the scan thread,
- * except that it's quite likely that we will get more than one
- * REPORT_LUNS_CHANGED condition in quick succession, which means
- * that those which occur after the first one will likely happen
- * *during* the scan_thread's rescan. And the rescan code is not
- * robust enough to restart in the middle, undoing what it has already
- * done, and it's not clear that it's even possible to do this, since
- * part of what it does is notify the block layer, which starts
- * doing it's own i/o to read partition tables and so on, and the
- * driver doesn't have visibility to know what might need undoing.
- * In any event, if possible, it is horribly complicated to get right
- * so we just don't do it for now.
- *
- * Note: this REPORT_LUNS_CHANGED condition only occurs on the MSA2012.
- */
- return 1;
- break;
- case POWER_OR_RESET:
- dev_warn(&h->pdev->dev,
- "a power on or device reset detected\n");
- return 1;
- break;
- case UNIT_ATTENTION_CLEARED:
- dev_warn(&h->pdev->dev,
- "unit attention cleared by another initiator\n");
- return 1;
- break;
- default:
- dev_warn(&h->pdev->dev, "unknown unit attention detected\n");
- return 1;
- }
-}
-
-/*
- * We cannot read the structure directly, for portability we must use
- * the io functions.
- * This is for debug only.
- */
-static void print_cfg_table(ctlr_info_t *h)
-{
- int i;
- char temp_name[17];
- CfgTable_struct *tb = h->cfgtable;
-
- dev_dbg(&h->pdev->dev, "Controller Configuration information\n");
- dev_dbg(&h->pdev->dev, "------------------------------------\n");
- for (i = 0; i < 4; i++)
- temp_name[i] = readb(&(tb->Signature[i]));
- temp_name[4] = '\0';
- dev_dbg(&h->pdev->dev, " Signature = %s\n", temp_name);
- dev_dbg(&h->pdev->dev, " Spec Number = %d\n",
- readl(&(tb->SpecValence)));
- dev_dbg(&h->pdev->dev, " Transport methods supported = 0x%x\n",
- readl(&(tb->TransportSupport)));
- dev_dbg(&h->pdev->dev, " Transport methods active = 0x%x\n",
- readl(&(tb->TransportActive)));
- dev_dbg(&h->pdev->dev, " Requested transport Method = 0x%x\n",
- readl(&(tb->HostWrite.TransportRequest)));
- dev_dbg(&h->pdev->dev, " Coalesce Interrupt Delay = 0x%x\n",
- readl(&(tb->HostWrite.CoalIntDelay)));
- dev_dbg(&h->pdev->dev, " Coalesce Interrupt Count = 0x%x\n",
- readl(&(tb->HostWrite.CoalIntCount)));
- dev_dbg(&h->pdev->dev, " Max outstanding commands = 0x%x\n",
- readl(&(tb->CmdsOutMax)));
- dev_dbg(&h->pdev->dev, " Bus Types = 0x%x\n",
- readl(&(tb->BusTypes)));
- for (i = 0; i < 16; i++)
- temp_name[i] = readb(&(tb->ServerName[i]));
- temp_name[16] = '\0';
- dev_dbg(&h->pdev->dev, " Server Name = %s\n", temp_name);
- dev_dbg(&h->pdev->dev, " Heartbeat Counter = 0x%x\n\n\n",
- readl(&(tb->HeartBeat)));
-}
-
-static int find_PCI_BAR_index(struct pci_dev *pdev, unsigned long pci_bar_addr)
-{
- int i, offset, mem_type, bar_type;
- if (pci_bar_addr == PCI_BASE_ADDRESS_0) /* looking for BAR zero? */
- return 0;
- offset = 0;
- for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
- bar_type = pci_resource_flags(pdev, i) & PCI_BASE_ADDRESS_SPACE;
- if (bar_type == PCI_BASE_ADDRESS_SPACE_IO)
- offset += 4;
- else {
- mem_type = pci_resource_flags(pdev, i) &
- PCI_BASE_ADDRESS_MEM_TYPE_MASK;
- switch (mem_type) {
- case PCI_BASE_ADDRESS_MEM_TYPE_32:
- case PCI_BASE_ADDRESS_MEM_TYPE_1M:
- offset += 4; /* 32 bit */
- break;
- case PCI_BASE_ADDRESS_MEM_TYPE_64:
- offset += 8;
- break;
- default: /* reserved in PCI 2.2 */
- dev_warn(&pdev->dev,
- "Base address is invalid\n");
- return -1;
- break;
- }
- }
- if (offset == pci_bar_addr - PCI_BASE_ADDRESS_0)
- return i + 1;
- }
- return -1;
-}
-
-/* Fill in bucket_map[], given nsgs (the max number of
- * scatter gather elements supported) and bucket[],
- * which is an array of 8 integers. The bucket[] array
- * contains 8 different DMA transfer sizes (in 16
- * byte increments) which the controller uses to fetch
- * commands. This function fills in bucket_map[], which
- * maps a given number of scatter gather elements to one of
- * the 8 DMA transfer sizes. The point of it is to allow the
- * controller to only do as much DMA as needed to fetch the
- * command, with the DMA transfer size encoded in the lower
- * bits of the command address.
- */
-static void calc_bucket_map(int bucket[], int num_buckets,
- int nsgs, int *bucket_map)
-{
- int i, j, b, size;
-
- /* even a command with 0 SGs requires 4 blocks */
-#define MINIMUM_TRANSFER_BLOCKS 4
-#define NUM_BUCKETS 8
- /* Note, bucket_map must have nsgs+1 entries. */
- for (i = 0; i <= nsgs; i++) {
- /* Compute size of a command with i SG entries */
- size = i + MINIMUM_TRANSFER_BLOCKS;
- b = num_buckets; /* Assume the biggest bucket */
- /* Find the bucket that is just big enough */
- for (j = 0; j < 8; j++) {
- if (bucket[j] >= size) {
- b = j;
- break;
- }
- }
- /* for a command with i SG entries, use bucket b. */
- bucket_map[i] = b;
- }
-}
-
-static void cciss_wait_for_mode_change_ack(ctlr_info_t *h)
-{
- int i;
-
- /* under certain very rare conditions, this can take awhile.
- * (e.g.: hot replace a failed 144GB drive in a RAID 5 set right
- * as we enter this code.) */
- for (i = 0; i < MAX_CONFIG_WAIT; i++) {
- if (!(readl(h->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq))
- break;
- usleep_range(10000, 20000);
- }
-}
-
-static void cciss_enter_performant_mode(ctlr_info_t *h, u32 use_short_tags)
-{
- /* This is a bit complicated. There are 8 registers on
- * the controller which we write to to tell it 8 different
- * sizes of commands which there may be. It's a way of
- * reducing the DMA done to fetch each command. Encoded into
- * each command's tag are 3 bits which communicate to the controller
- * which of the eight sizes that command fits within. The size of
- * each command depends on how many scatter gather entries there are.
- * Each SG entry requires 16 bytes. The eight registers are programmed
- * with the number of 16-byte blocks a command of that size requires.
- * The smallest command possible requires 5 such 16 byte blocks.
- * the largest command possible requires MAXSGENTRIES + 4 16-byte
- * blocks. Note, this only extends to the SG entries contained
- * within the command block, and does not extend to chained blocks
- * of SG elements. bft[] contains the eight values we write to
- * the registers. They are not evenly distributed, but have more
- * sizes for small commands, and fewer sizes for larger commands.
- */
- __u32 trans_offset;
- int bft[8] = { 5, 6, 8, 10, 12, 20, 28, MAXSGENTRIES + 4};
- /*
- * 5 = 1 s/g entry or 4k
- * 6 = 2 s/g entry or 8k
- * 8 = 4 s/g entry or 16k
- * 10 = 6 s/g entry or 24k
- */
- unsigned long register_value;
- BUILD_BUG_ON(28 > MAXSGENTRIES + 4);
-
- h->reply_pool_wraparound = 1; /* spec: init to 1 */
-
- /* Controller spec: zero out this buffer. */
- memset(h->reply_pool, 0, h->max_commands * sizeof(__u64));
- h->reply_pool_head = h->reply_pool;
-
- trans_offset = readl(&(h->cfgtable->TransMethodOffset));
- calc_bucket_map(bft, ARRAY_SIZE(bft), h->maxsgentries,
- h->blockFetchTable);
- writel(bft[0], &h->transtable->BlockFetch0);
- writel(bft[1], &h->transtable->BlockFetch1);
- writel(bft[2], &h->transtable->BlockFetch2);
- writel(bft[3], &h->transtable->BlockFetch3);
- writel(bft[4], &h->transtable->BlockFetch4);
- writel(bft[5], &h->transtable->BlockFetch5);
- writel(bft[6], &h->transtable->BlockFetch6);
- writel(bft[7], &h->transtable->BlockFetch7);
-
- /* size of controller ring buffer */
- writel(h->max_commands, &h->transtable->RepQSize);
- writel(1, &h->transtable->RepQCount);
- writel(0, &h->transtable->RepQCtrAddrLow32);
- writel(0, &h->transtable->RepQCtrAddrHigh32);
- writel(h->reply_pool_dhandle, &h->transtable->RepQAddr0Low32);
- writel(0, &h->transtable->RepQAddr0High32);
- writel(CFGTBL_Trans_Performant | use_short_tags,
- &(h->cfgtable->HostWrite.TransportRequest));
-
- writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
- cciss_wait_for_mode_change_ack(h);
- register_value = readl(&(h->cfgtable->TransportActive));
- if (!(register_value & CFGTBL_Trans_Performant))
- dev_warn(&h->pdev->dev, "cciss: unable to get board into"
- " performant mode\n");
-}
-
-static void cciss_put_controller_into_performant_mode(ctlr_info_t *h)
-{
- __u32 trans_support;
-
- if (cciss_simple_mode)
- return;
-
- dev_dbg(&h->pdev->dev, "Trying to put board into Performant mode\n");
- /* Attempt to put controller into performant mode if supported */
- /* Does board support performant mode? */
- trans_support = readl(&(h->cfgtable->TransportSupport));
- if (!(trans_support & PERFORMANT_MODE))
- return;
-
- dev_dbg(&h->pdev->dev, "Placing controller into performant mode\n");
- /* Performant mode demands commands on a 32 byte boundary
- * pci_alloc_consistent aligns on page boundarys already.
- * Just need to check if divisible by 32
- */
- if ((sizeof(CommandList_struct) % 32) != 0) {
- dev_warn(&h->pdev->dev, "%s %d %s\n",
- "cciss info: command size[",
- (int)sizeof(CommandList_struct),
- "] not divisible by 32, no performant mode..\n");
- return;
- }
-
- /* Performant mode ring buffer and supporting data structures */
- h->reply_pool = (__u64 *)pci_alloc_consistent(
- h->pdev, h->max_commands * sizeof(__u64),
- &(h->reply_pool_dhandle));
-
- /* Need a block fetch table for performant mode */
- h->blockFetchTable = kmalloc(((h->maxsgentries+1) *
- sizeof(__u32)), GFP_KERNEL);
-
- if ((h->reply_pool == NULL) || (h->blockFetchTable == NULL))
- goto clean_up;
-
- cciss_enter_performant_mode(h,
- trans_support & CFGTBL_Trans_use_short_tags);
-
- /* Change the access methods to the performant access methods */
- h->access = SA5_performant_access;
- h->transMethod = CFGTBL_Trans_Performant;
-
- return;
-clean_up:
- kfree(h->blockFetchTable);
- if (h->reply_pool)
- pci_free_consistent(h->pdev,
- h->max_commands * sizeof(__u64),
- h->reply_pool,
- h->reply_pool_dhandle);
- return;
-
-} /* cciss_put_controller_into_performant_mode */
-
-/* If MSI/MSI-X is supported by the kernel we will try to enable it on
- * controllers that are capable. If not, we use IO-APIC mode.
- */
-
-static void cciss_interrupt_mode(ctlr_info_t *h)
-{
- int ret;
-
- /* Some boards advertise MSI but don't really support it */
- if ((h->board_id == 0x40700E11) || (h->board_id == 0x40800E11) ||
- (h->board_id == 0x40820E11) || (h->board_id == 0x40830E11))
- goto default_int_mode;
-
- ret = pci_alloc_irq_vectors(h->pdev, 4, 4, PCI_IRQ_MSIX);
- if (ret >= 0) {
- h->intr[0] = pci_irq_vector(h->pdev, 0);
- h->intr[1] = pci_irq_vector(h->pdev, 1);
- h->intr[2] = pci_irq_vector(h->pdev, 2);
- h->intr[3] = pci_irq_vector(h->pdev, 3);
- return;
- }
-
- ret = pci_alloc_irq_vectors(h->pdev, 1, 1, PCI_IRQ_MSI);
-
-default_int_mode:
- /* if we get here we're going to use the default interrupt mode */
- h->intr[h->intr_mode] = pci_irq_vector(h->pdev, 0);
- return;
-}
-
-static int cciss_lookup_board_id(struct pci_dev *pdev, u32 *board_id)
-{
- int i;
- u32 subsystem_vendor_id, subsystem_device_id;
-
- subsystem_vendor_id = pdev->subsystem_vendor;
- subsystem_device_id = pdev->subsystem_device;
- *board_id = ((subsystem_device_id << 16) & 0xffff0000) |
- subsystem_vendor_id;
-
- for (i = 0; i < ARRAY_SIZE(products); i++) {
- /* Stand aside for hpsa driver on request */
- if (cciss_allow_hpsa)
- return -ENODEV;
- if (*board_id == products[i].board_id)
- return i;
- }
- dev_warn(&pdev->dev, "unrecognized board ID: 0x%08x, ignoring.\n",
- *board_id);
- return -ENODEV;
-}
-
-static inline bool cciss_board_disabled(ctlr_info_t *h)
-{
- u16 command;
-
- (void) pci_read_config_word(h->pdev, PCI_COMMAND, &command);
- return ((command & PCI_COMMAND_MEMORY) == 0);
-}
-
-static int cciss_pci_find_memory_BAR(struct pci_dev *pdev,
- unsigned long *memory_bar)
-{
- int i;
-
- for (i = 0; i < DEVICE_COUNT_RESOURCE; i++)
- if (pci_resource_flags(pdev, i) & IORESOURCE_MEM) {
- /* addressing mode bits already removed */
- *memory_bar = pci_resource_start(pdev, i);
- dev_dbg(&pdev->dev, "memory BAR = %lx\n",
- *memory_bar);
- return 0;
- }
- dev_warn(&pdev->dev, "no memory BAR found\n");
- return -ENODEV;
-}
-
-static int cciss_wait_for_board_state(struct pci_dev *pdev,
- void __iomem *vaddr, int wait_for_ready)
-#define BOARD_READY 1
-#define BOARD_NOT_READY 0
-{
- int i, iterations;
- u32 scratchpad;
-
- if (wait_for_ready)
- iterations = CCISS_BOARD_READY_ITERATIONS;
- else
- iterations = CCISS_BOARD_NOT_READY_ITERATIONS;
-
- for (i = 0; i < iterations; i++) {
- scratchpad = readl(vaddr + SA5_SCRATCHPAD_OFFSET);
- if (wait_for_ready) {
- if (scratchpad == CCISS_FIRMWARE_READY)
- return 0;
- } else {
- if (scratchpad != CCISS_FIRMWARE_READY)
- return 0;
- }
- msleep(CCISS_BOARD_READY_POLL_INTERVAL_MSECS);
- }
- dev_warn(&pdev->dev, "board not ready, timed out.\n");
- return -ENODEV;
-}
-
-static int cciss_find_cfg_addrs(struct pci_dev *pdev, void __iomem *vaddr,
- u32 *cfg_base_addr, u64 *cfg_base_addr_index,
- u64 *cfg_offset)
-{
- *cfg_base_addr = readl(vaddr + SA5_CTCFG_OFFSET);
- *cfg_offset = readl(vaddr + SA5_CTMEM_OFFSET);
- *cfg_base_addr &= (u32) 0x0000ffff;
- *cfg_base_addr_index = find_PCI_BAR_index(pdev, *cfg_base_addr);
- if (*cfg_base_addr_index == -1) {
- dev_warn(&pdev->dev, "cannot find cfg_base_addr_index, "
- "*cfg_base_addr = 0x%08x\n", *cfg_base_addr);
- return -ENODEV;
- }
- return 0;
-}
-
-static int cciss_find_cfgtables(ctlr_info_t *h)
-{
- u64 cfg_offset;
- u32 cfg_base_addr;
- u64 cfg_base_addr_index;
- u32 trans_offset;
- int rc;
-
- rc = cciss_find_cfg_addrs(h->pdev, h->vaddr, &cfg_base_addr,
- &cfg_base_addr_index, &cfg_offset);
- if (rc)
- return rc;
- h->cfgtable = remap_pci_mem(pci_resource_start(h->pdev,
- cfg_base_addr_index) + cfg_offset, sizeof(*h->cfgtable));
- if (!h->cfgtable)
- return -ENOMEM;
- rc = write_driver_ver_to_cfgtable(h->cfgtable);
- if (rc)
- return rc;
- /* Find performant mode table. */
- trans_offset = readl(&h->cfgtable->TransMethodOffset);
- h->transtable = remap_pci_mem(pci_resource_start(h->pdev,
- cfg_base_addr_index)+cfg_offset+trans_offset,
- sizeof(*h->transtable));
- if (!h->transtable)
- return -ENOMEM;
- return 0;
-}
-
-static void cciss_get_max_perf_mode_cmds(struct ctlr_info *h)
-{
- h->max_commands = readl(&(h->cfgtable->MaxPerformantModeCommands));
-
- /* Limit commands in memory limited kdump scenario. */
- if (reset_devices && h->max_commands > 32)
- h->max_commands = 32;
-
- if (h->max_commands < 16) {
- dev_warn(&h->pdev->dev, "Controller reports "
- "max supported commands of %d, an obvious lie. "
- "Using 16. Ensure that firmware is up to date.\n",
- h->max_commands);
- h->max_commands = 16;
- }
-}
-
-/* Interrogate the hardware for some limits:
- * max commands, max SG elements without chaining, and with chaining,
- * SG chain block size, etc.
- */
-static void cciss_find_board_params(ctlr_info_t *h)
-{
- cciss_get_max_perf_mode_cmds(h);
- h->nr_cmds = h->max_commands - 4 - cciss_tape_cmds;
- h->maxsgentries = readl(&(h->cfgtable->MaxSGElements));
- /*
- * The P600 may exhibit poor performnace under some workloads
- * if we use the value in the configuration table. Limit this
- * controller to MAXSGENTRIES (32) instead.
- */
- if (h->board_id == 0x3225103C)
- h->maxsgentries = MAXSGENTRIES;
- /*
- * Limit in-command s/g elements to 32 save dma'able memory.
- * Howvever spec says if 0, use 31
- */
- h->max_cmd_sgentries = 31;
- if (h->maxsgentries > 512) {
- h->max_cmd_sgentries = 32;
- h->chainsize = h->maxsgentries - h->max_cmd_sgentries + 1;
- h->maxsgentries--; /* save one for chain pointer */
- } else {
- h->maxsgentries = 31; /* default to traditional values */
- h->chainsize = 0;
- }
-}
-
-static inline bool CISS_signature_present(ctlr_info_t *h)
-{
- if (!check_signature(h->cfgtable->Signature, "CISS", 4)) {
- dev_warn(&h->pdev->dev, "not a valid CISS config table\n");
- return false;
- }
- return true;
-}
-
-/* Need to enable prefetch in the SCSI core for 6400 in x86 */
-static inline void cciss_enable_scsi_prefetch(ctlr_info_t *h)
-{
-#ifdef CONFIG_X86
- u32 prefetch;
-
- prefetch = readl(&(h->cfgtable->SCSI_Prefetch));
- prefetch |= 0x100;
- writel(prefetch, &(h->cfgtable->SCSI_Prefetch));
-#endif
-}
-
-/* Disable DMA prefetch for the P600. Otherwise an ASIC bug may result
- * in a prefetch beyond physical memory.
- */
-static inline void cciss_p600_dma_prefetch_quirk(ctlr_info_t *h)
-{
- u32 dma_prefetch;
- __u32 dma_refetch;
-
- if (h->board_id != 0x3225103C)
- return;
- dma_prefetch = readl(h->vaddr + I2O_DMA1_CFG);
- dma_prefetch |= 0x8000;
- writel(dma_prefetch, h->vaddr + I2O_DMA1_CFG);
- pci_read_config_dword(h->pdev, PCI_COMMAND_PARITY, &dma_refetch);
- dma_refetch |= 0x1;
- pci_write_config_dword(h->pdev, PCI_COMMAND_PARITY, dma_refetch);
-}
-
-static int cciss_pci_init(ctlr_info_t *h)
-{
- int prod_index, err;
-
- prod_index = cciss_lookup_board_id(h->pdev, &h->board_id);
- if (prod_index < 0)
- return -ENODEV;
- h->product_name = products[prod_index].product_name;
- h->access = *(products[prod_index].access);
-
- if (cciss_board_disabled(h)) {
- dev_warn(&h->pdev->dev, "controller appears to be disabled\n");
- return -ENODEV;
- }
-
- pci_disable_link_state(h->pdev, PCIE_LINK_STATE_L0S |
- PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM);
-
- err = pci_enable_device(h->pdev);
- if (err) {
- dev_warn(&h->pdev->dev, "Unable to Enable PCI device\n");
- return err;
- }
-
- err = pci_request_regions(h->pdev, "cciss");
- if (err) {
- dev_warn(&h->pdev->dev,
- "Cannot obtain PCI resources, aborting\n");
- return err;
- }
-
- dev_dbg(&h->pdev->dev, "irq = %x\n", h->pdev->irq);
- dev_dbg(&h->pdev->dev, "board_id = %x\n", h->board_id);
-
-/* If the kernel supports MSI/MSI-X we will try to enable that functionality,
- * else we use the IO-APIC interrupt assigned to us by system ROM.
- */
- cciss_interrupt_mode(h);
- err = cciss_pci_find_memory_BAR(h->pdev, &h->paddr);
- if (err)
- goto err_out_free_res;
- h->vaddr = remap_pci_mem(h->paddr, 0x250);
- if (!h->vaddr) {
- err = -ENOMEM;
- goto err_out_free_res;
- }
- err = cciss_wait_for_board_state(h->pdev, h->vaddr, BOARD_READY);
- if (err)
- goto err_out_free_res;
- err = cciss_find_cfgtables(h);
- if (err)
- goto err_out_free_res;
- print_cfg_table(h);
- cciss_find_board_params(h);
-
- if (!CISS_signature_present(h)) {
- err = -ENODEV;
- goto err_out_free_res;
- }
- cciss_enable_scsi_prefetch(h);
- cciss_p600_dma_prefetch_quirk(h);
- err = cciss_enter_simple_mode(h);
- if (err)
- goto err_out_free_res;
- cciss_put_controller_into_performant_mode(h);
- return 0;
-
-err_out_free_res:
- /*
- * Deliberately omit pci_disable_device(): it does something nasty to
- * Smart Array controllers that pci_enable_device does not undo
- */
- if (h->transtable)
- iounmap(h->transtable);
- if (h->cfgtable)
- iounmap(h->cfgtable);
- if (h->vaddr)
- iounmap(h->vaddr);
- pci_release_regions(h->pdev);
- return err;
-}
-
-/* Function to find the first free pointer into our hba[] array
- * Returns -1 if no free entries are left.
- */
-static int alloc_cciss_hba(struct pci_dev *pdev)
-{
- int i;
-
- for (i = 0; i < MAX_CTLR; i++) {
- if (!hba[i]) {
- ctlr_info_t *h;
-
- h = kzalloc(sizeof(ctlr_info_t), GFP_KERNEL);
- if (!h)
- goto Enomem;
- hba[i] = h;
- return i;
- }
- }
- dev_warn(&pdev->dev, "This driver supports a maximum"
- " of %d controllers.\n", MAX_CTLR);
- return -1;
-Enomem:
- dev_warn(&pdev->dev, "out of memory.\n");
- return -1;
-}
-
-static void free_hba(ctlr_info_t *h)
-{
- int i;
-
- hba[h->ctlr] = NULL;
- for (i = 0; i < h->highest_lun + 1; i++)
- if (h->gendisk[i] != NULL)
- put_disk(h->gendisk[i]);
- kfree(h);
-}
-
-/* Send a message CDB to the firmware. */
-static int cciss_message(struct pci_dev *pdev, unsigned char opcode,
- unsigned char type)
-{
- typedef struct {
- CommandListHeader_struct CommandHeader;
- RequestBlock_struct Request;
- ErrDescriptor_struct ErrorDescriptor;
- } Command;
- static const size_t cmd_sz = sizeof(Command) + sizeof(ErrorInfo_struct);
- Command *cmd;
- dma_addr_t paddr64;
- uint32_t paddr32, tag;
- void __iomem *vaddr;
- int i, err;
-
- vaddr = ioremap_nocache(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
- if (vaddr == NULL)
- return -ENOMEM;
-
- /* The Inbound Post Queue only accepts 32-bit physical addresses for the
- CCISS commands, so they must be allocated from the lower 4GiB of
- memory. */
- err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
- if (err) {
- iounmap(vaddr);
- return -ENOMEM;
- }
-
- cmd = pci_alloc_consistent(pdev, cmd_sz, &paddr64);
- if (cmd == NULL) {
- iounmap(vaddr);
- return -ENOMEM;
- }
-
- /* This must fit, because of the 32-bit consistent DMA mask. Also,
- although there's no guarantee, we assume that the address is at
- least 4-byte aligned (most likely, it's page-aligned). */
- paddr32 = paddr64;
-
- cmd->CommandHeader.ReplyQueue = 0;
- cmd->CommandHeader.SGList = 0;
- cmd->CommandHeader.SGTotal = 0;
- cmd->CommandHeader.Tag.lower = paddr32;
- cmd->CommandHeader.Tag.upper = 0;
- memset(&cmd->CommandHeader.LUN.LunAddrBytes, 0, 8);
-
- cmd->Request.CDBLen = 16;
- cmd->Request.Type.Type = TYPE_MSG;
- cmd->Request.Type.Attribute = ATTR_HEADOFQUEUE;
- cmd->Request.Type.Direction = XFER_NONE;
- cmd->Request.Timeout = 0; /* Don't time out */
- cmd->Request.CDB[0] = opcode;
- cmd->Request.CDB[1] = type;
- memset(&cmd->Request.CDB[2], 0, 14); /* the rest of the CDB is reserved */
-
- cmd->ErrorDescriptor.Addr.lower = paddr32 + sizeof(Command);
- cmd->ErrorDescriptor.Addr.upper = 0;
- cmd->ErrorDescriptor.Len = sizeof(ErrorInfo_struct);
-
- writel(paddr32, vaddr + SA5_REQUEST_PORT_OFFSET);
-
- for (i = 0; i < 10; i++) {
- tag = readl(vaddr + SA5_REPLY_PORT_OFFSET);
- if ((tag & ~3) == paddr32)
- break;
- msleep(CCISS_POST_RESET_NOOP_TIMEOUT_MSECS);
- }
-
- iounmap(vaddr);
-
- /* we leak the DMA buffer here ... no choice since the controller could
- still complete the command. */
- if (i == 10) {
- dev_err(&pdev->dev,
- "controller message %02x:%02x timed out\n",
- opcode, type);
- return -ETIMEDOUT;
- }
-
- pci_free_consistent(pdev, cmd_sz, cmd, paddr64);
-
- if (tag & 2) {
- dev_err(&pdev->dev, "controller message %02x:%02x failed\n",
- opcode, type);
- return -EIO;
- }
-
- dev_info(&pdev->dev, "controller message %02x:%02x succeeded\n",
- opcode, type);
- return 0;
-}
-
-#define cciss_noop(p) cciss_message(p, 3, 0)
-
-static int cciss_controller_hard_reset(struct pci_dev *pdev,
- void * __iomem vaddr, u32 use_doorbell)
-{
- u16 pmcsr;
- int pos;
-
- if (use_doorbell) {
- /* For everything after the P600, the PCI power state method
- * of resetting the controller doesn't work, so we have this
- * other way using the doorbell register.
- */
- dev_info(&pdev->dev, "using doorbell to reset controller\n");
- writel(use_doorbell, vaddr + SA5_DOORBELL);
- } else { /* Try to do it the PCI power state way */
-
- /* Quoting from the Open CISS Specification: "The Power
- * Management Control/Status Register (CSR) controls the power
- * state of the device. The normal operating state is D0,
- * CSR=00h. The software off state is D3, CSR=03h. To reset
- * the controller, place the interface device in D3 then to D0,
- * this causes a secondary PCI reset which will reset the
- * controller." */
-
- pos = pci_find_capability(pdev, PCI_CAP_ID_PM);
- if (pos == 0) {
- dev_err(&pdev->dev,
- "cciss_controller_hard_reset: "
- "PCI PM not supported\n");
- return -ENODEV;
- }
- dev_info(&pdev->dev, "using PCI PM to reset controller\n");
- /* enter the D3hot power management state */
- pci_read_config_word(pdev, pos + PCI_PM_CTRL, &pmcsr);
- pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
- pmcsr |= PCI_D3hot;
- pci_write_config_word(pdev, pos + PCI_PM_CTRL, pmcsr);
-
- msleep(500);
-
- /* enter the D0 power management state */
- pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
- pmcsr |= PCI_D0;
- pci_write_config_word(pdev, pos + PCI_PM_CTRL, pmcsr);
-
- /*
- * The P600 requires a small delay when changing states.
- * Otherwise we may think the board did not reset and we bail.
- * This for kdump only and is particular to the P600.
- */
- msleep(500);
- }
- return 0;
-}
-
-static void init_driver_version(char *driver_version, int len)
-{
- memset(driver_version, 0, len);
- strncpy(driver_version, "cciss " DRIVER_NAME, len - 1);
-}
-
-static int write_driver_ver_to_cfgtable(CfgTable_struct __iomem *cfgtable)
-{
- char *driver_version;
- int i, size = sizeof(cfgtable->driver_version);
-
- driver_version = kmalloc(size, GFP_KERNEL);
- if (!driver_version)
- return -ENOMEM;
-
- init_driver_version(driver_version, size);
- for (i = 0; i < size; i++)
- writeb(driver_version[i], &cfgtable->driver_version[i]);
- kfree(driver_version);
- return 0;
-}
-
-static void read_driver_ver_from_cfgtable(CfgTable_struct __iomem *cfgtable,
- unsigned char *driver_ver)
-{
- int i;
-
- for (i = 0; i < sizeof(cfgtable->driver_version); i++)
- driver_ver[i] = readb(&cfgtable->driver_version[i]);
-}
-
-static int controller_reset_failed(CfgTable_struct __iomem *cfgtable)
-{
-
- char *driver_ver, *old_driver_ver;
- int rc, size = sizeof(cfgtable->driver_version);
-
- old_driver_ver = kmalloc(2 * size, GFP_KERNEL);
- if (!old_driver_ver)
- return -ENOMEM;
- driver_ver = old_driver_ver + size;
-
- /* After a reset, the 32 bytes of "driver version" in the cfgtable
- * should have been changed, otherwise we know the reset failed.
- */
- init_driver_version(old_driver_ver, size);
- read_driver_ver_from_cfgtable(cfgtable, driver_ver);
- rc = !memcmp(driver_ver, old_driver_ver, size);
- kfree(old_driver_ver);
- return rc;
-}
-
-/* This does a hard reset of the controller using PCI power management
- * states or using the doorbell register. */
-static int cciss_kdump_hard_reset_controller(struct pci_dev *pdev)
-{
- u64 cfg_offset;
- u32 cfg_base_addr;
- u64 cfg_base_addr_index;
- void __iomem *vaddr;
- unsigned long paddr;
- u32 misc_fw_support;
- int rc;
- CfgTable_struct __iomem *cfgtable;
- u32 use_doorbell;
- u32 board_id;
- u16 command_register;
-
- /* For controllers as old a the p600, this is very nearly
- * the same thing as
- *
- * pci_save_state(pci_dev);
- * pci_set_power_state(pci_dev, PCI_D3hot);
- * pci_set_power_state(pci_dev, PCI_D0);
- * pci_restore_state(pci_dev);
- *
- * For controllers newer than the P600, the pci power state
- * method of resetting doesn't work so we have another way
- * using the doorbell register.
- */
-
- /* Exclude 640x boards. These are two pci devices in one slot
- * which share a battery backed cache module. One controls the
- * cache, the other accesses the cache through the one that controls
- * it. If we reset the one controlling the cache, the other will
- * likely not be happy. Just forbid resetting this conjoined mess.
- */
- cciss_lookup_board_id(pdev, &board_id);
- if (!ctlr_is_resettable(board_id)) {
- dev_warn(&pdev->dev, "Controller not resettable\n");
- return -ENODEV;
- }
-
- /* if controller is soft- but not hard resettable... */
- if (!ctlr_is_hard_resettable(board_id))
- return -ENOTSUPP; /* try soft reset later. */
-
- /* Save the PCI command register */
- pci_read_config_word(pdev, 4, &command_register);
- /* Turn the board off. This is so that later pci_restore_state()
- * won't turn the board on before the rest of config space is ready.
- */
- pci_disable_device(pdev);
- pci_save_state(pdev);
-
- /* find the first memory BAR, so we can find the cfg table */
- rc = cciss_pci_find_memory_BAR(pdev, &paddr);
- if (rc)
- return rc;
- vaddr = remap_pci_mem(paddr, 0x250);
- if (!vaddr)
- return -ENOMEM;
-
- /* find cfgtable in order to check if reset via doorbell is supported */
- rc = cciss_find_cfg_addrs(pdev, vaddr, &cfg_base_addr,
- &cfg_base_addr_index, &cfg_offset);
- if (rc)
- goto unmap_vaddr;
- cfgtable = remap_pci_mem(pci_resource_start(pdev,
- cfg_base_addr_index) + cfg_offset, sizeof(*cfgtable));
- if (!cfgtable) {
- rc = -ENOMEM;
- goto unmap_vaddr;
- }
- rc = write_driver_ver_to_cfgtable(cfgtable);
- if (rc)
- goto unmap_vaddr;
-
- /* If reset via doorbell register is supported, use that.
- * There are two such methods. Favor the newest method.
- */
- misc_fw_support = readl(&cfgtable->misc_fw_support);
- use_doorbell = misc_fw_support & MISC_FW_DOORBELL_RESET2;
- if (use_doorbell) {
- use_doorbell = DOORBELL_CTLR_RESET2;
- } else {
- use_doorbell = misc_fw_support & MISC_FW_DOORBELL_RESET;
- if (use_doorbell) {
- dev_warn(&pdev->dev, "Controller claims that "
- "'Bit 2 doorbell reset' is "
- "supported, but not 'bit 5 doorbell reset'. "
- "Firmware update is recommended.\n");
- rc = -ENOTSUPP; /* use the soft reset */
- goto unmap_cfgtable;
- }
- }
-
- rc = cciss_controller_hard_reset(pdev, vaddr, use_doorbell);
- if (rc)
- goto unmap_cfgtable;
- pci_restore_state(pdev);
- rc = pci_enable_device(pdev);
- if (rc) {
- dev_warn(&pdev->dev, "failed to enable device.\n");
- goto unmap_cfgtable;
- }
- pci_write_config_word(pdev, 4, command_register);
-
- /* Some devices (notably the HP Smart Array 5i Controller)
- need a little pause here */
- msleep(CCISS_POST_RESET_PAUSE_MSECS);
-
- /* Wait for board to become not ready, then ready. */
- dev_info(&pdev->dev, "Waiting for board to reset.\n");
- rc = cciss_wait_for_board_state(pdev, vaddr, BOARD_NOT_READY);
- if (rc) {
- dev_warn(&pdev->dev, "Failed waiting for board to hard reset."
- " Will try soft reset.\n");
- rc = -ENOTSUPP; /* Not expected, but try soft reset later */
- goto unmap_cfgtable;
- }
- rc = cciss_wait_for_board_state(pdev, vaddr, BOARD_READY);
- if (rc) {
- dev_warn(&pdev->dev,
- "failed waiting for board to become ready "
- "after hard reset\n");
- goto unmap_cfgtable;
- }
-
- rc = controller_reset_failed(vaddr);
- if (rc < 0)
- goto unmap_cfgtable;
- if (rc) {
- dev_warn(&pdev->dev, "Unable to successfully hard reset "
- "controller. Will try soft reset.\n");
- rc = -ENOTSUPP; /* Not expected, but try soft reset later */
- } else {
- dev_info(&pdev->dev, "Board ready after hard reset.\n");
- }
-
-unmap_cfgtable:
- iounmap(cfgtable);
-
-unmap_vaddr:
- iounmap(vaddr);
- return rc;
-}
-
-static int cciss_init_reset_devices(struct pci_dev *pdev)
-{
- int rc, i;
-
- if (!reset_devices)
- return 0;
-
- /* Reset the controller with a PCI power-cycle or via doorbell */
- rc = cciss_kdump_hard_reset_controller(pdev);
-
- /* -ENOTSUPP here means we cannot reset the controller
- * but it's already (and still) up and running in
- * "performant mode". Or, it might be 640x, which can't reset
- * due to concerns about shared bbwc between 6402/6404 pair.
- */
- if (rc == -ENOTSUPP)
- return rc; /* just try to do the kdump anyhow. */
- if (rc)
- return -ENODEV;
-
- /* Now try to get the controller to respond to a no-op */
- dev_warn(&pdev->dev, "Waiting for controller to respond to no-op\n");
- for (i = 0; i < CCISS_POST_RESET_NOOP_RETRIES; i++) {
- if (cciss_noop(pdev) == 0)
- break;
- else
- dev_warn(&pdev->dev, "no-op failed%s\n",
- (i < CCISS_POST_RESET_NOOP_RETRIES - 1 ?
- "; re-trying" : ""));
- msleep(CCISS_POST_RESET_NOOP_INTERVAL_MSECS);
- }
- return 0;
-}
-
-static int cciss_allocate_cmd_pool(ctlr_info_t *h)
-{
- h->cmd_pool_bits = kmalloc(BITS_TO_LONGS(h->nr_cmds) *
- sizeof(unsigned long), GFP_KERNEL);
- h->cmd_pool = pci_alloc_consistent(h->pdev,
- h->nr_cmds * sizeof(CommandList_struct),
- &(h->cmd_pool_dhandle));
- h->errinfo_pool = pci_alloc_consistent(h->pdev,
- h->nr_cmds * sizeof(ErrorInfo_struct),
- &(h->errinfo_pool_dhandle));
- if ((h->cmd_pool_bits == NULL)
- || (h->cmd_pool == NULL)
- || (h->errinfo_pool == NULL)) {
- dev_err(&h->pdev->dev, "out of memory");
- return -ENOMEM;
- }
- return 0;
-}
-
-static int cciss_allocate_scatterlists(ctlr_info_t *h)
-{
- int i;
-
- /* zero it, so that on free we need not know how many were alloc'ed */
- h->scatter_list = kzalloc(h->max_commands *
- sizeof(struct scatterlist *), GFP_KERNEL);
- if (!h->scatter_list)
- return -ENOMEM;
-
- for (i = 0; i < h->nr_cmds; i++) {
- h->scatter_list[i] = kmalloc(sizeof(struct scatterlist) *
- h->maxsgentries, GFP_KERNEL);
- if (h->scatter_list[i] == NULL) {
- dev_err(&h->pdev->dev, "could not allocate "
- "s/g lists\n");
- return -ENOMEM;
- }
- }
- return 0;
-}
-
-static void cciss_free_scatterlists(ctlr_info_t *h)
-{
- int i;
-
- if (h->scatter_list) {
- for (i = 0; i < h->nr_cmds; i++)
- kfree(h->scatter_list[i]);
- kfree(h->scatter_list);
- }
-}
-
-static void cciss_free_cmd_pool(ctlr_info_t *h)
-{
- kfree(h->cmd_pool_bits);
- if (h->cmd_pool)
- pci_free_consistent(h->pdev,
- h->nr_cmds * sizeof(CommandList_struct),
- h->cmd_pool, h->cmd_pool_dhandle);
- if (h->errinfo_pool)
- pci_free_consistent(h->pdev,
- h->nr_cmds * sizeof(ErrorInfo_struct),
- h->errinfo_pool, h->errinfo_pool_dhandle);
-}
-
-static int cciss_request_irq(ctlr_info_t *h,
- irqreturn_t (*msixhandler)(int, void *),
- irqreturn_t (*intxhandler)(int, void *))
-{
- if (h->pdev->msi_enabled || h->pdev->msix_enabled) {
- if (!request_irq(h->intr[h->intr_mode], msixhandler,
- 0, h->devname, h))
- return 0;
- dev_err(&h->pdev->dev, "Unable to get msi irq %d"
- " for %s\n", h->intr[h->intr_mode],
- h->devname);
- return -1;
- }
-
- if (!request_irq(h->intr[h->intr_mode], intxhandler,
- IRQF_SHARED, h->devname, h))
- return 0;
- dev_err(&h->pdev->dev, "Unable to get irq %d for %s\n",
- h->intr[h->intr_mode], h->devname);
- return -1;
-}
-
-static int cciss_kdump_soft_reset(ctlr_info_t *h)
-{
- if (cciss_send_reset(h, CTLR_LUNID, CCISS_RESET_TYPE_CONTROLLER)) {
- dev_warn(&h->pdev->dev, "Resetting array controller failed.\n");
- return -EIO;
- }
-
- dev_info(&h->pdev->dev, "Waiting for board to soft reset.\n");
- if (cciss_wait_for_board_state(h->pdev, h->vaddr, BOARD_NOT_READY)) {
- dev_warn(&h->pdev->dev, "Soft reset had no effect.\n");
- return -1;
- }
-
- dev_info(&h->pdev->dev, "Board reset, awaiting READY status.\n");
- if (cciss_wait_for_board_state(h->pdev, h->vaddr, BOARD_READY)) {
- dev_warn(&h->pdev->dev, "Board failed to become ready "
- "after soft reset.\n");
- return -1;
- }
-
- return 0;
-}
-
-static void cciss_undo_allocations_after_kdump_soft_reset(ctlr_info_t *h)
-{
- int ctlr = h->ctlr;
-
- free_irq(h->intr[h->intr_mode], h);
- pci_free_irq_vectors(h->pdev);
- cciss_free_sg_chain_blocks(h->cmd_sg_list, h->nr_cmds);
- cciss_free_scatterlists(h);
- cciss_free_cmd_pool(h);
- kfree(h->blockFetchTable);
- if (h->reply_pool)
- pci_free_consistent(h->pdev, h->max_commands * sizeof(__u64),
- h->reply_pool, h->reply_pool_dhandle);
- if (h->transtable)
- iounmap(h->transtable);
- if (h->cfgtable)
- iounmap(h->cfgtable);
- if (h->vaddr)
- iounmap(h->vaddr);
- unregister_blkdev(h->major, h->devname);
- cciss_destroy_hba_sysfs_entry(h);
- pci_release_regions(h->pdev);
- kfree(h);
- hba[ctlr] = NULL;
-}
-
-/*
- * This is it. Find all the controllers and register them. I really hate
- * stealing all these major device numbers.
- * returns the number of block devices registered.
- */
-static int cciss_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- int i;
- int j = 0;
- int rc;
- int try_soft_reset = 0;
- int dac, return_code;
- InquiryData_struct *inq_buff;
- ctlr_info_t *h;
- unsigned long flags;
-
- /*
- * By default the cciss driver is used for all older HP Smart Array
- * controllers. There are module paramaters that allow a user to
- * override this behavior and instead use the hpsa SCSI driver. If
- * this is the case cciss may be loaded first from the kdump initrd
- * image and cause a kernel panic. So if reset_devices is true and
- * cciss_allow_hpsa is set just bail.
- */
- if ((reset_devices) && (cciss_allow_hpsa == 1))
- return -ENODEV;
- rc = cciss_init_reset_devices(pdev);
- if (rc) {
- if (rc != -ENOTSUPP)
- return rc;
- /* If the reset fails in a particular way (it has no way to do
- * a proper hard reset, so returns -ENOTSUPP) we can try to do
- * a soft reset once we get the controller configured up to the
- * point that it can accept a command.
- */
- try_soft_reset = 1;
- rc = 0;
- }
-
-reinit_after_soft_reset:
-
- i = alloc_cciss_hba(pdev);
- if (i < 0)
- return -ENOMEM;
-
- h = hba[i];
- h->pdev = pdev;
- h->busy_initializing = 1;
- h->intr_mode = cciss_simple_mode ? SIMPLE_MODE_INT : PERF_MODE_INT;
- INIT_LIST_HEAD(&h->cmpQ);
- INIT_LIST_HEAD(&h->reqQ);
- mutex_init(&h->busy_shutting_down);
-
- if (cciss_pci_init(h) != 0)
- goto clean_no_release_regions;
-
- sprintf(h->devname, "cciss%d", i);
- h->ctlr = i;
-
- if (cciss_tape_cmds < 2)
- cciss_tape_cmds = 2;
- if (cciss_tape_cmds > 16)
- cciss_tape_cmds = 16;
-
- init_completion(&h->scan_wait);
-
- if (cciss_create_hba_sysfs_entry(h))
- goto clean0;
-
- /* configure PCI DMA stuff */
- if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))
- dac = 1;
- else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))
- dac = 0;
- else {
- dev_err(&h->pdev->dev, "no suitable DMA available\n");
- goto clean1;
- }
-
- /*
- * register with the major number, or get a dynamic major number
- * by passing 0 as argument. This is done for greater than
- * 8 controller support.
- */
- if (i < MAX_CTLR_ORIG)
- h->major = COMPAQ_CISS_MAJOR + i;
- rc = register_blkdev(h->major, h->devname);
- if (rc == -EBUSY || rc == -EINVAL) {
- dev_err(&h->pdev->dev,
- "Unable to get major number %d for %s "
- "on hba %d\n", h->major, h->devname, i);
- goto clean1;
- } else {
- if (i >= MAX_CTLR_ORIG)
- h->major = rc;
- }
-
- /* make sure the board interrupts are off */
- h->access.set_intr_mask(h, CCISS_INTR_OFF);
- rc = cciss_request_irq(h, do_cciss_msix_intr, do_cciss_intx);
- if (rc)
- goto clean2;
-
- dev_info(&h->pdev->dev, "%s: <0x%x> at PCI %s IRQ %d%s using DAC\n",
- h->devname, pdev->device, pci_name(pdev),
- h->intr[h->intr_mode], dac ? "" : " not");
-
- if (cciss_allocate_cmd_pool(h))
- goto clean4;
-
- if (cciss_allocate_scatterlists(h))
- goto clean4;
-
- h->cmd_sg_list = cciss_allocate_sg_chain_blocks(h,
- h->chainsize, h->nr_cmds);
- if (!h->cmd_sg_list && h->chainsize > 0)
- goto clean4;
-
- spin_lock_init(&h->lock);
-
- /* Initialize the pdev driver private data.
- have it point to h. */
- pci_set_drvdata(pdev, h);
- /* command and error info recs zeroed out before
- they are used */
- bitmap_zero(h->cmd_pool_bits, h->nr_cmds);
-
- h->num_luns = 0;
- h->highest_lun = -1;
- for (j = 0; j < CISS_MAX_LUN; j++) {
- h->drv[j] = NULL;
- h->gendisk[j] = NULL;
- }
-
- /* At this point, the controller is ready to take commands.
- * Now, if reset_devices and the hard reset didn't work, try
- * the soft reset and see if that works.
- */
- if (try_soft_reset) {
-
- /* This is kind of gross. We may or may not get a completion
- * from the soft reset command, and if we do, then the value
- * from the fifo may or may not be valid. So, we wait 10 secs
- * after the reset throwing away any completions we get during
- * that time. Unregister the interrupt handler and register
- * fake ones to scoop up any residual completions.
- */
- spin_lock_irqsave(&h->lock, flags);
- h->access.set_intr_mask(h, CCISS_INTR_OFF);
- spin_unlock_irqrestore(&h->lock, flags);
- free_irq(h->intr[h->intr_mode], h);
- rc = cciss_request_irq(h, cciss_msix_discard_completions,
- cciss_intx_discard_completions);
- if (rc) {
- dev_warn(&h->pdev->dev, "Failed to request_irq after "
- "soft reset.\n");
- goto clean4;
- }
-
- rc = cciss_kdump_soft_reset(h);
- if (rc) {
- dev_warn(&h->pdev->dev, "Soft reset failed.\n");
- goto clean4;
- }
-
- dev_info(&h->pdev->dev, "Board READY.\n");
- dev_info(&h->pdev->dev,
- "Waiting for stale completions to drain.\n");
- h->access.set_intr_mask(h, CCISS_INTR_ON);
- msleep(10000);
- h->access.set_intr_mask(h, CCISS_INTR_OFF);
-
- rc = controller_reset_failed(h->cfgtable);
- if (rc)
- dev_info(&h->pdev->dev,
- "Soft reset appears to have failed.\n");
-
- /* since the controller's reset, we have to go back and re-init
- * everything. Easiest to just forget what we've done and do it
- * all over again.
- */
- cciss_undo_allocations_after_kdump_soft_reset(h);
- try_soft_reset = 0;
- if (rc)
- /* don't go to clean4, we already unallocated */
- return -ENODEV;
-
- goto reinit_after_soft_reset;
- }
-
- cciss_scsi_setup(h);
-
- /* Turn the interrupts on so we can service requests */
- h->access.set_intr_mask(h, CCISS_INTR_ON);
-
- /* Get the firmware version */
- inq_buff = kzalloc(sizeof(InquiryData_struct), GFP_KERNEL);
- if (inq_buff == NULL) {
- dev_err(&h->pdev->dev, "out of memory\n");
- goto clean4;
- }
-
- return_code = sendcmd_withirq(h, CISS_INQUIRY, inq_buff,
- sizeof(InquiryData_struct), 0, CTLR_LUNID, TYPE_CMD);
- if (return_code == IO_OK) {
- h->firm_ver[0] = inq_buff->data_byte[32];
- h->firm_ver[1] = inq_buff->data_byte[33];
- h->firm_ver[2] = inq_buff->data_byte[34];
- h->firm_ver[3] = inq_buff->data_byte[35];
- } else { /* send command failed */
- dev_warn(&h->pdev->dev, "unable to determine firmware"
- " version of controller\n");
- }
- kfree(inq_buff);
-
- cciss_procinit(h);
-
- h->cciss_max_sectors = 8192;
-
- rebuild_lun_table(h, 1, 0);
- cciss_engage_scsi(h);
- h->busy_initializing = 0;
- return 0;
-
-clean4:
- cciss_free_cmd_pool(h);
- cciss_free_scatterlists(h);
- cciss_free_sg_chain_blocks(h->cmd_sg_list, h->nr_cmds);
- free_irq(h->intr[h->intr_mode], h);
-clean2:
- unregister_blkdev(h->major, h->devname);
-clean1:
- cciss_destroy_hba_sysfs_entry(h);
-clean0:
- pci_release_regions(pdev);
-clean_no_release_regions:
- h->busy_initializing = 0;
-
- /*
- * Deliberately omit pci_disable_device(): it does something nasty to
- * Smart Array controllers that pci_enable_device does not undo
- */
- pci_set_drvdata(pdev, NULL);
- free_hba(h);
- return -ENODEV;
-}
-
-static void cciss_shutdown(struct pci_dev *pdev)
-{
- ctlr_info_t *h;
- char *flush_buf;
- int return_code;
-
- h = pci_get_drvdata(pdev);
- flush_buf = kzalloc(4, GFP_KERNEL);
- if (!flush_buf) {
- dev_warn(&h->pdev->dev, "cache not flushed, out of memory.\n");
- return;
- }
- /* write all data in the battery backed cache to disk */
- return_code = sendcmd_withirq(h, CCISS_CACHE_FLUSH, flush_buf,
- 4, 0, CTLR_LUNID, TYPE_CMD);
- kfree(flush_buf);
- if (return_code != IO_OK)
- dev_warn(&h->pdev->dev, "Error flushing cache\n");
- h->access.set_intr_mask(h, CCISS_INTR_OFF);
- free_irq(h->intr[h->intr_mode], h);
-}
-
-static int cciss_enter_simple_mode(struct ctlr_info *h)
-{
- u32 trans_support;
-
- trans_support = readl(&(h->cfgtable->TransportSupport));
- if (!(trans_support & SIMPLE_MODE))
- return -ENOTSUPP;
-
- h->max_commands = readl(&(h->cfgtable->CmdsOutMax));
- writel(CFGTBL_Trans_Simple, &(h->cfgtable->HostWrite.TransportRequest));
- writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
- cciss_wait_for_mode_change_ack(h);
- print_cfg_table(h);
- if (!(readl(&(h->cfgtable->TransportActive)) & CFGTBL_Trans_Simple)) {
- dev_warn(&h->pdev->dev, "unable to get board into simple mode\n");
- return -ENODEV;
- }
- h->transMethod = CFGTBL_Trans_Simple;
- return 0;
-}
-
-
-static void cciss_remove_one(struct pci_dev *pdev)
-{
- ctlr_info_t *h;
- int i, j;
-
- if (pci_get_drvdata(pdev) == NULL) {
- dev_err(&pdev->dev, "Unable to remove device\n");
- return;
- }
-
- h = pci_get_drvdata(pdev);
- i = h->ctlr;
- if (hba[i] == NULL) {
- dev_err(&pdev->dev, "device appears to already be removed\n");
- return;
- }
-
- mutex_lock(&h->busy_shutting_down);
-
- remove_from_scan_list(h);
- remove_proc_entry(h->devname, proc_cciss);
- unregister_blkdev(h->major, h->devname);
-
- /* remove it from the disk list */
- for (j = 0; j < CISS_MAX_LUN; j++) {
- struct gendisk *disk = h->gendisk[j];
- if (disk) {
- struct request_queue *q = disk->queue;
-
- if (disk->flags & GENHD_FL_UP) {
- cciss_destroy_ld_sysfs_entry(h, j, 1);
- del_gendisk(disk);
- }
- if (q)
- blk_cleanup_queue(q);
- }
- }
-
-#ifdef CONFIG_CISS_SCSI_TAPE
- cciss_unregister_scsi(h); /* unhook from SCSI subsystem */
-#endif
-
- cciss_shutdown(pdev);
-
- pci_free_irq_vectors(h->pdev);
-
- iounmap(h->transtable);
- iounmap(h->cfgtable);
- iounmap(h->vaddr);
-
- cciss_free_cmd_pool(h);
- /* Free up sg elements */
- for (j = 0; j < h->nr_cmds; j++)
- kfree(h->scatter_list[j]);
- kfree(h->scatter_list);
- cciss_free_sg_chain_blocks(h->cmd_sg_list, h->nr_cmds);
- kfree(h->blockFetchTable);
- if (h->reply_pool)
- pci_free_consistent(h->pdev, h->max_commands * sizeof(__u64),
- h->reply_pool, h->reply_pool_dhandle);
- /*
- * Deliberately omit pci_disable_device(): it does something nasty to
- * Smart Array controllers that pci_enable_device does not undo
- */
- pci_release_regions(pdev);
- pci_set_drvdata(pdev, NULL);
- cciss_destroy_hba_sysfs_entry(h);
- mutex_unlock(&h->busy_shutting_down);
- free_hba(h);
-}
-
-static struct pci_driver cciss_pci_driver = {
- .name = "cciss",
- .probe = cciss_init_one,
- .remove = cciss_remove_one,
- .id_table = cciss_pci_device_id, /* id_table */
- .shutdown = cciss_shutdown,
-};
-
-/*
- * This is it. Register the PCI driver information for the cards we control
- * the OS will call our registered routines when it finds one of our cards.
- */
-static int __init cciss_init(void)
-{
- int err;
-
- /*
- * The hardware requires that commands are aligned on a 64-bit
- * boundary. Given that we use pci_alloc_consistent() to allocate an
- * array of them, the size must be a multiple of 8 bytes.
- */
- BUILD_BUG_ON(sizeof(CommandList_struct) % COMMANDLIST_ALIGNMENT);
- printk(KERN_INFO DRIVER_NAME "\n");
-
- err = bus_register(&cciss_bus_type);
- if (err)
- return err;
-
- /* Start the scan thread */
- cciss_scan_thread = kthread_run(scan_thread, NULL, "cciss_scan");
- if (IS_ERR(cciss_scan_thread)) {
- err = PTR_ERR(cciss_scan_thread);
- goto err_bus_unregister;
- }
-
- /* Register for our PCI devices */
- err = pci_register_driver(&cciss_pci_driver);
- if (err)
- goto err_thread_stop;
-
- return err;
-
-err_thread_stop:
- kthread_stop(cciss_scan_thread);
-err_bus_unregister:
- bus_unregister(&cciss_bus_type);
-
- return err;
-}
-
-static void __exit cciss_cleanup(void)
-{
- int i;
-
- pci_unregister_driver(&cciss_pci_driver);
- /* double check that all controller entrys have been removed */
- for (i = 0; i < MAX_CTLR; i++) {
- if (hba[i] != NULL) {
- dev_warn(&hba[i]->pdev->dev,
- "had to remove controller\n");
- cciss_remove_one(hba[i]->pdev);
- }
- }
- kthread_stop(cciss_scan_thread);
- if (proc_cciss)
- remove_proc_entry("driver/cciss", NULL);
- bus_unregister(&cciss_bus_type);
-}
-
-module_init(cciss_init);
-module_exit(cciss_cleanup);
diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h
deleted file mode 100644
index 24b5fd75501a..000000000000
--- a/drivers/block/cciss.h
+++ /dev/null
@@ -1,433 +0,0 @@
-#ifndef CCISS_H
-#define CCISS_H
-
-#include <linux/genhd.h>
-#include <linux/mutex.h>
-
-#include "cciss_cmd.h"
-
-
-#define NWD_SHIFT 4
-#define MAX_PART (1 << NWD_SHIFT)
-
-#define IO_OK 0
-#define IO_ERROR 1
-#define IO_NEEDS_RETRY 3
-
-#define VENDOR_LEN 8
-#define MODEL_LEN 16
-#define REV_LEN 4
-
-struct ctlr_info;
-typedef struct ctlr_info ctlr_info_t;
-
-struct access_method {
- void (*submit_command)(ctlr_info_t *h, CommandList_struct *c);
- void (*set_intr_mask)(ctlr_info_t *h, unsigned long val);
- unsigned long (*fifo_full)(ctlr_info_t *h);
- bool (*intr_pending)(ctlr_info_t *h);
- unsigned long (*command_completed)(ctlr_info_t *h);
-};
-typedef struct _drive_info_struct
-{
- unsigned char LunID[8];
- int usage_count;
- struct request_queue *queue;
- sector_t nr_blocks;
- int block_size;
- int heads;
- int sectors;
- int cylinders;
- int raid_level; /* set to -1 to indicate that
- * the drive is not in use/configured
- */
- int busy_configuring; /* This is set when a drive is being removed
- * to prevent it from being opened or it's
- * queue from being started.
- */
- struct device dev;
- __u8 serial_no[16]; /* from inquiry page 0x83,
- * not necc. null terminated.
- */
- char vendor[VENDOR_LEN + 1]; /* SCSI vendor string */
- char model[MODEL_LEN + 1]; /* SCSI model string */
- char rev[REV_LEN + 1]; /* SCSI revision string */
- char device_initialized; /* indicates whether dev is initialized */
-} drive_info_struct;
-
-struct ctlr_info
-{
- int ctlr;
- char devname[8];
- char *product_name;
- char firm_ver[4]; /* Firmware version */
- struct pci_dev *pdev;
- __u32 board_id;
- void __iomem *vaddr;
- unsigned long paddr;
- int nr_cmds; /* Number of commands allowed on this controller */
- CfgTable_struct __iomem *cfgtable;
- int interrupts_enabled;
- int major;
- int max_commands;
- int commands_outstanding;
- int max_outstanding; /* Debug */
- int num_luns;
- int highest_lun;
- int usage_count; /* number of opens all all minor devices */
- /* Need space for temp sg list
- * number of scatter/gathers supported
- * number of scatter/gathers in chained block
- */
- struct scatterlist **scatter_list;
- int maxsgentries;
- int chainsize;
- int max_cmd_sgentries;
- SGDescriptor_struct **cmd_sg_list;
-
-# define PERF_MODE_INT 0
-# define DOORBELL_INT 1
-# define SIMPLE_MODE_INT 2
-# define MEMQ_MODE_INT 3
- unsigned int intr[4];
- int intr_mode;
- int cciss_max_sectors;
- BYTE cciss_read;
- BYTE cciss_write;
- BYTE cciss_read_capacity;
-
- /* information about each logical volume */
- drive_info_struct *drv[CISS_MAX_LUN];
-
- struct access_method access;
-
- /* queue and queue Info */
- struct list_head reqQ;
- struct list_head cmpQ;
- unsigned int Qdepth;
- unsigned int maxQsinceinit;
- unsigned int maxSG;
- spinlock_t lock;
-
- /* pointers to command and error info pool */
- CommandList_struct *cmd_pool;
- dma_addr_t cmd_pool_dhandle;
- ErrorInfo_struct *errinfo_pool;
- dma_addr_t errinfo_pool_dhandle;
- unsigned long *cmd_pool_bits;
- int nr_allocs;
- int nr_frees;
- int busy_configuring;
- int busy_initializing;
- int busy_scanning;
- struct mutex busy_shutting_down;
-
- /* This element holds the zero based queue number of the last
- * queue to be started. It is used for fairness.
- */
- int next_to_run;
-
- /* Disk structures we need to pass back */
- struct gendisk *gendisk[CISS_MAX_LUN];
-#ifdef CONFIG_CISS_SCSI_TAPE
- struct cciss_scsi_adapter_data_t *scsi_ctlr;
-#endif
- unsigned char alive;
- struct list_head scan_list;
- struct completion scan_wait;
- struct device dev;
- /*
- * Performant mode tables.
- */
- u32 trans_support;
- u32 trans_offset;
- struct TransTable_struct *transtable;
- unsigned long transMethod;
-
- /*
- * Performant mode completion buffer
- */
- u64 *reply_pool;
- dma_addr_t reply_pool_dhandle;
- u64 *reply_pool_head;
- size_t reply_pool_size;
- unsigned char reply_pool_wraparound;
- u32 *blockFetchTable;
-};
-
-/* Defining the diffent access_methods
- *
- * Memory mapped FIFO interface (SMART 53xx cards)
- */
-#define SA5_DOORBELL 0x20
-#define SA5_REQUEST_PORT_OFFSET 0x40
-#define SA5_REPLY_INTR_MASK_OFFSET 0x34
-#define SA5_REPLY_PORT_OFFSET 0x44
-#define SA5_INTR_STATUS 0x30
-#define SA5_SCRATCHPAD_OFFSET 0xB0
-
-#define SA5_CTCFG_OFFSET 0xB4
-#define SA5_CTMEM_OFFSET 0xB8
-
-#define SA5_INTR_OFF 0x08
-#define SA5B_INTR_OFF 0x04
-#define SA5_INTR_PENDING 0x08
-#define SA5B_INTR_PENDING 0x04
-#define FIFO_EMPTY 0xffffffff
-#define CCISS_FIRMWARE_READY 0xffff0000 /* value in scratchpad register */
-/* Perf. mode flags */
-#define SA5_PERF_INTR_PENDING 0x04
-#define SA5_PERF_INTR_OFF 0x05
-#define SA5_OUTDB_STATUS_PERF_BIT 0x01
-#define SA5_OUTDB_CLEAR_PERF_BIT 0x01
-#define SA5_OUTDB_CLEAR 0xA0
-#define SA5_OUTDB_CLEAR_PERF_BIT 0x01
-#define SA5_OUTDB_STATUS 0x9C
-
-
-#define CISS_ERROR_BIT 0x02
-
-#define CCISS_INTR_ON 1
-#define CCISS_INTR_OFF 0
-
-
-/* CCISS_BOARD_READY_WAIT_SECS is how long to wait for a board
- * to become ready, in seconds, before giving up on it.
- * CCISS_BOARD_READY_POLL_INTERVAL_MSECS * is how long to wait
- * between polling the board to see if it is ready, in
- * milliseconds. CCISS_BOARD_READY_ITERATIONS is derived
- * the above.
- */
-#define CCISS_BOARD_READY_WAIT_SECS (120)
-#define CCISS_BOARD_NOT_READY_WAIT_SECS (100)
-#define CCISS_BOARD_READY_POLL_INTERVAL_MSECS (100)
-#define CCISS_BOARD_READY_ITERATIONS \
- ((CCISS_BOARD_READY_WAIT_SECS * 1000) / \
- CCISS_BOARD_READY_POLL_INTERVAL_MSECS)
-#define CCISS_BOARD_NOT_READY_ITERATIONS \
- ((CCISS_BOARD_NOT_READY_WAIT_SECS * 1000) / \
- CCISS_BOARD_READY_POLL_INTERVAL_MSECS)
-#define CCISS_POST_RESET_PAUSE_MSECS (3000)
-#define CCISS_POST_RESET_NOOP_INTERVAL_MSECS (4000)
-#define CCISS_POST_RESET_NOOP_RETRIES (12)
-#define CCISS_POST_RESET_NOOP_TIMEOUT_MSECS (10000)
-
-/*
- Send the command to the hardware
-*/
-static void SA5_submit_command( ctlr_info_t *h, CommandList_struct *c)
-{
-#ifdef CCISS_DEBUG
- printk(KERN_WARNING "cciss%d: Sending %08x - down to controller\n",
- h->ctlr, c->busaddr);
-#endif /* CCISS_DEBUG */
- writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET);
- readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
- h->commands_outstanding++;
- if ( h->commands_outstanding > h->max_outstanding)
- h->max_outstanding = h->commands_outstanding;
-}
-
-/*
- * This card is the opposite of the other cards.
- * 0 turns interrupts on...
- * 0x08 turns them off...
- */
-static void SA5_intr_mask(ctlr_info_t *h, unsigned long val)
-{
- if (val)
- { /* Turn interrupts on */
- h->interrupts_enabled = 1;
- writel(0, h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
- (void) readl(h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
- } else /* Turn them off */
- {
- h->interrupts_enabled = 0;
- writel( SA5_INTR_OFF,
- h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
- (void) readl(h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
- }
-}
-/*
- * This card is the opposite of the other cards.
- * 0 turns interrupts on...
- * 0x04 turns them off...
- */
-static void SA5B_intr_mask(ctlr_info_t *h, unsigned long val)
-{
- if (val)
- { /* Turn interrupts on */
- h->interrupts_enabled = 1;
- writel(0, h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
- (void) readl(h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
- } else /* Turn them off */
- {
- h->interrupts_enabled = 0;
- writel( SA5B_INTR_OFF,
- h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
- (void) readl(h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
- }
-}
-
-/* Performant mode intr_mask */
-static void SA5_performant_intr_mask(ctlr_info_t *h, unsigned long val)
-{
- if (val) { /* turn on interrupts */
- h->interrupts_enabled = 1;
- writel(0, h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
- (void) readl(h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
- } else {
- h->interrupts_enabled = 0;
- writel(SA5_PERF_INTR_OFF,
- h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
- (void) readl(h->vaddr + SA5_REPLY_INTR_MASK_OFFSET);
- }
-}
-
-/*
- * Returns true if fifo is full.
- *
- */
-static unsigned long SA5_fifo_full(ctlr_info_t *h)
-{
- if( h->commands_outstanding >= h->max_commands)
- return(1);
- else
- return(0);
-
-}
-/*
- * returns value read from hardware.
- * returns FIFO_EMPTY if there is nothing to read
- */
-static unsigned long SA5_completed(ctlr_info_t *h)
-{
- unsigned long register_value
- = readl(h->vaddr + SA5_REPLY_PORT_OFFSET);
- if(register_value != FIFO_EMPTY)
- {
- h->commands_outstanding--;
-#ifdef CCISS_DEBUG
- printk("cciss: Read %lx back from board\n", register_value);
-#endif /* CCISS_DEBUG */
- }
-#ifdef CCISS_DEBUG
- else
- {
- printk("cciss: FIFO Empty read\n");
- }
-#endif
- return ( register_value);
-
-}
-
-/* Performant mode command completed */
-static unsigned long SA5_performant_completed(ctlr_info_t *h)
-{
- unsigned long register_value = FIFO_EMPTY;
-
- /* flush the controller write of the reply queue by reading
- * outbound doorbell status register.
- */
- register_value = readl(h->vaddr + SA5_OUTDB_STATUS);
- /* msi auto clears the interrupt pending bit. */
- if (!(h->pdev->msi_enabled || h->pdev->msix_enabled)) {
- writel(SA5_OUTDB_CLEAR_PERF_BIT, h->vaddr + SA5_OUTDB_CLEAR);
- /* Do a read in order to flush the write to the controller
- * (as per spec.)
- */
- register_value = readl(h->vaddr + SA5_OUTDB_STATUS);
- }
-
- if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) {
- register_value = *(h->reply_pool_head);
- (h->reply_pool_head)++;
- h->commands_outstanding--;
- } else {
- register_value = FIFO_EMPTY;
- }
- /* Check for wraparound */
- if (h->reply_pool_head == (h->reply_pool + h->max_commands)) {
- h->reply_pool_head = h->reply_pool;
- h->reply_pool_wraparound ^= 1;
- }
-
- return register_value;
-}
-/*
- * Returns true if an interrupt is pending..
- */
-static bool SA5_intr_pending(ctlr_info_t *h)
-{
- unsigned long register_value =
- readl(h->vaddr + SA5_INTR_STATUS);
-#ifdef CCISS_DEBUG
- printk("cciss: intr_pending %lx\n", register_value);
-#endif /* CCISS_DEBUG */
- if( register_value & SA5_INTR_PENDING)
- return 1;
- return 0 ;
-}
-
-/*
- * Returns true if an interrupt is pending..
- */
-static bool SA5B_intr_pending(ctlr_info_t *h)
-{
- unsigned long register_value =
- readl(h->vaddr + SA5_INTR_STATUS);
-#ifdef CCISS_DEBUG
- printk("cciss: intr_pending %lx\n", register_value);
-#endif /* CCISS_DEBUG */
- if( register_value & SA5B_INTR_PENDING)
- return 1;
- return 0 ;
-}
-
-static bool SA5_performant_intr_pending(ctlr_info_t *h)
-{
- unsigned long register_value = readl(h->vaddr + SA5_INTR_STATUS);
-
- if (!register_value)
- return false;
-
- if (h->pdev->msi_enabled || h->pdev->msix_enabled)
- return true;
-
- /* Read outbound doorbell to flush */
- register_value = readl(h->vaddr + SA5_OUTDB_STATUS);
- return register_value & SA5_OUTDB_STATUS_PERF_BIT;
-}
-
-static struct access_method SA5_access = {
- .submit_command = SA5_submit_command,
- .set_intr_mask = SA5_intr_mask,
- .fifo_full = SA5_fifo_full,
- .intr_pending = SA5_intr_pending,
- .command_completed = SA5_completed,
-};
-
-static struct access_method SA5B_access = {
- .submit_command = SA5_submit_command,
- .set_intr_mask = SA5B_intr_mask,
- .fifo_full = SA5_fifo_full,
- .intr_pending = SA5B_intr_pending,
- .command_completed = SA5_completed,
-};
-
-static struct access_method SA5_performant_access = {
- .submit_command = SA5_submit_command,
- .set_intr_mask = SA5_performant_intr_mask,
- .fifo_full = SA5_fifo_full,
- .intr_pending = SA5_performant_intr_pending,
- .command_completed = SA5_performant_completed,
-};
-
-struct board_type {
- __u32 board_id;
- char *product_name;
- struct access_method *access;
- int nr_cmds; /* Max cmds this kind of ctlr can handle. */
-};
-
-#endif /* CCISS_H */
diff --git a/drivers/block/cciss_cmd.h b/drivers/block/cciss_cmd.h
deleted file mode 100644
index d9be6b4d49a6..000000000000
--- a/drivers/block/cciss_cmd.h
+++ /dev/null
@@ -1,269 +0,0 @@
-#ifndef CCISS_CMD_H
-#define CCISS_CMD_H
-
-#include <linux/cciss_defs.h>
-
-/* DEFINES */
-#define CISS_VERSION "1.00"
-
-/* general boundary definitions */
-#define MAXSGENTRIES 32
-#define CCISS_SG_CHAIN 0x80000000
-#define MAXREPLYQS 256
-
-/* Unit Attentions ASC's as defined for the MSA2012sa */
-#define POWER_OR_RESET 0x29
-#define STATE_CHANGED 0x2a
-#define UNIT_ATTENTION_CLEARED 0x2f
-#define LUN_FAILED 0x3e
-#define REPORT_LUNS_CHANGED 0x3f
-
-/* Unit Attentions ASCQ's as defined for the MSA2012sa */
-
- /* These ASCQ's defined for ASC = POWER_OR_RESET */
-#define POWER_ON_RESET 0x00
-#define POWER_ON_REBOOT 0x01
-#define SCSI_BUS_RESET 0x02
-#define MSA_TARGET_RESET 0x03
-#define CONTROLLER_FAILOVER 0x04
-#define TRANSCEIVER_SE 0x05
-#define TRANSCEIVER_LVD 0x06
-
- /* These ASCQ's defined for ASC = STATE_CHANGED */
-#define RESERVATION_PREEMPTED 0x03
-#define ASYM_ACCESS_CHANGED 0x06
-#define LUN_CAPACITY_CHANGED 0x09
-
-/* config space register offsets */
-#define CFG_VENDORID 0x00
-#define CFG_DEVICEID 0x02
-#define CFG_I2OBAR 0x10
-#define CFG_MEM1BAR 0x14
-
-/* i2o space register offsets */
-#define I2O_IBDB_SET 0x20
-#define I2O_IBDB_CLEAR 0x70
-#define I2O_INT_STATUS 0x30
-#define I2O_INT_MASK 0x34
-#define I2O_IBPOST_Q 0x40
-#define I2O_OBPOST_Q 0x44
-#define I2O_DMA1_CFG 0x214
-
-/* Configuration Table */
-#define CFGTBL_ChangeReq 0x00000001l
-#define CFGTBL_AccCmds 0x00000001l
-#define DOORBELL_CTLR_RESET 0x00000004l
-#define DOORBELL_CTLR_RESET2 0x00000020l
-
-#define CFGTBL_Trans_Simple 0x00000002l
-#define CFGTBL_Trans_Performant 0x00000004l
-#define CFGTBL_Trans_use_short_tags 0x20000000l
-
-#define CFGTBL_BusType_Ultra2 0x00000001l
-#define CFGTBL_BusType_Ultra3 0x00000002l
-#define CFGTBL_BusType_Fibre1G 0x00000100l
-#define CFGTBL_BusType_Fibre2G 0x00000200l
-typedef struct _vals32
-{
- __u32 lower;
- __u32 upper;
-} vals32;
-
-typedef union _u64bit
-{
- vals32 val32;
- __u64 val;
-} u64bit;
-
-/* Type defs used in the following structs */
-#define QWORD vals32
-
-/* STRUCTURES */
-#define CISS_MAX_PHYS_LUN 1024
-/* SCSI-3 Cmmands */
-
-#pragma pack(1)
-
-#define CISS_INQUIRY 0x12
-/* Date returned */
-typedef struct _InquiryData_struct
-{
- BYTE data_byte[36];
-} InquiryData_struct;
-
-#define CISS_REPORT_LOG 0xc2 /* Report Logical LUNs */
-#define CISS_REPORT_PHYS 0xc3 /* Report Physical LUNs */
-/* Data returned */
-typedef struct _ReportLUNdata_struct
-{
- BYTE LUNListLength[4];
- DWORD reserved;
- BYTE LUN[CISS_MAX_LUN][8];
-} ReportLunData_struct;
-
-#define CCISS_READ_CAPACITY 0x25 /* Read Capacity */
-typedef struct _ReadCapdata_struct
-{
- BYTE total_size[4]; /* Total size in blocks */
- BYTE block_size[4]; /* Size of blocks in bytes */
-} ReadCapdata_struct;
-
-#define CCISS_READ_CAPACITY_16 0x9e /* Read Capacity 16 */
-
-/* service action to differentiate a 16 byte read capacity from
- other commands that use the 0x9e SCSI op code */
-
-#define CCISS_READ_CAPACITY_16_SERVICE_ACT 0x10
-
-typedef struct _ReadCapdata_struct_16
-{
- BYTE total_size[8]; /* Total size in blocks */
- BYTE block_size[4]; /* Size of blocks in bytes */
- BYTE prot_en:1; /* protection enable bit */
- BYTE rto_en:1; /* reference tag own enable bit */
- BYTE reserved:6; /* reserved bits */
- BYTE reserved2[18]; /* reserved bytes per spec */
-} ReadCapdata_struct_16;
-
-/* Define the supported read/write commands for cciss based controllers */
-
-#define CCISS_READ_10 0x28 /* Read(10) */
-#define CCISS_WRITE_10 0x2a /* Write(10) */
-#define CCISS_READ_16 0x88 /* Read(16) */
-#define CCISS_WRITE_16 0x8a /* Write(16) */
-
-/* Define the CDB lengths supported by cciss based controllers */
-
-#define CDB_LEN10 10
-#define CDB_LEN16 16
-
-/* BMIC commands */
-#define BMIC_READ 0x26
-#define BMIC_WRITE 0x27
-#define BMIC_CACHE_FLUSH 0xc2
-#define CCISS_CACHE_FLUSH 0x01 /* C2 was already being used by CCISS */
-
-#define CCISS_ABORT_MSG 0x00
-#define CCISS_RESET_MSG 0x01
-#define CCISS_RESET_TYPE_CONTROLLER 0x00
-#define CCISS_RESET_TYPE_BUS 0x01
-#define CCISS_RESET_TYPE_TARGET 0x03
-#define CCISS_RESET_TYPE_LUN 0x04
-#define CCISS_NOOP_MSG 0x03
-
-/* Command List Structure */
-#define CTLR_LUNID "\0\0\0\0\0\0\0\0"
-
-typedef struct _CommandListHeader_struct {
- BYTE ReplyQueue;
- BYTE SGList;
- HWORD SGTotal;
- QWORD Tag;
- LUNAddr_struct LUN;
-} CommandListHeader_struct;
-typedef struct _ErrDescriptor_struct {
- QWORD Addr;
- DWORD Len;
-} ErrDescriptor_struct;
-typedef struct _SGDescriptor_struct {
- QWORD Addr;
- DWORD Len;
- DWORD Ext;
-} SGDescriptor_struct;
-
-/* Command types */
-#define CMD_RWREQ 0x00
-#define CMD_IOCTL_PEND 0x01
-#define CMD_SCSI 0x03
-#define CMD_MSG_DONE 0x04
-#define CMD_MSG_TIMEOUT 0x05
-#define CMD_MSG_STALE 0xff
-
-/* This structure needs to be divisible by COMMANDLIST_ALIGNMENT
- * because low bits of the address are used to to indicate that
- * whether the tag contains an index or an address. PAD_32 and
- * PAD_64 can be adjusted independently as needed for 32-bit
- * and 64-bits systems.
- */
-#define COMMANDLIST_ALIGNMENT (32)
-#define IS_64_BIT ((sizeof(long) - 4)/4)
-#define IS_32_BIT (!IS_64_BIT)
-#define PAD_32 (0)
-#define PAD_64 (4)
-#define PADSIZE (IS_32_BIT * PAD_32 + IS_64_BIT * PAD_64)
-#define DIRECT_LOOKUP_BIT 0x10
-#define DIRECT_LOOKUP_SHIFT 5
-
-typedef struct _CommandList_struct {
- CommandListHeader_struct Header;
- RequestBlock_struct Request;
- ErrDescriptor_struct ErrDesc;
- SGDescriptor_struct SG[MAXSGENTRIES];
- /* information associated with the command */
- __u32 busaddr; /* physical address of this record */
- ErrorInfo_struct * err_info; /* pointer to the allocated mem */
- int ctlr;
- int cmd_type;
- long cmdindex;
- struct list_head list;
- struct request * rq;
- struct completion *waiting;
- int retry_count;
- void * scsi_cmd;
- char pad[PADSIZE];
-} CommandList_struct;
-
-/* Configuration Table Structure */
-typedef struct _HostWrite_struct {
- DWORD TransportRequest;
- DWORD Reserved;
- DWORD CoalIntDelay;
- DWORD CoalIntCount;
-} HostWrite_struct;
-
-typedef struct _CfgTable_struct {
- BYTE Signature[4];
- DWORD SpecValence;
-#define SIMPLE_MODE 0x02
-#define PERFORMANT_MODE 0x04
-#define MEMQ_MODE 0x08
- DWORD TransportSupport;
- DWORD TransportActive;
- HostWrite_struct HostWrite;
- DWORD CmdsOutMax;
- DWORD BusTypes;
- DWORD TransMethodOffset;
- BYTE ServerName[16];
- DWORD HeartBeat;
- DWORD SCSI_Prefetch;
- DWORD MaxSGElements;
- DWORD MaxLogicalUnits;
- DWORD MaxPhysicalDrives;
- DWORD MaxPhysicalDrivesPerLogicalUnit;
- DWORD MaxPerformantModeCommands;
- u8 reserved[0x78 - 0x58];
- u32 misc_fw_support; /* offset 0x78 */
-#define MISC_FW_DOORBELL_RESET (0x02)
-#define MISC_FW_DOORBELL_RESET2 (0x10)
- u8 driver_version[32];
-} CfgTable_struct;
-
-struct TransTable_struct {
- u32 BlockFetch0;
- u32 BlockFetch1;
- u32 BlockFetch2;
- u32 BlockFetch3;
- u32 BlockFetch4;
- u32 BlockFetch5;
- u32 BlockFetch6;
- u32 BlockFetch7;
- u32 RepQSize;
- u32 RepQCount;
- u32 RepQCtrAddrLow32;
- u32 RepQCtrAddrHigh32;
- u32 RepQAddr0Low32;
- u32 RepQAddr0High32;
-};
-
-#pragma pack()
-#endif /* CCISS_CMD_H */
diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c
deleted file mode 100644
index 01a1f7e24978..000000000000
--- a/drivers/block/cciss_scsi.c
+++ /dev/null
@@ -1,1653 +0,0 @@
-/*
- * Disk Array driver for HP Smart Array controllers, SCSI Tape module.
- * (C) Copyright 2001, 2007 Hewlett-Packard Development Company, L.P.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 300, Boston, MA
- * 02111-1307, USA.
- *
- * Questions/Comments/Bugfixes to iss_storagedev@hp.com
- *
- * Author: Stephen M. Cameron
- */
-#ifdef CONFIG_CISS_SCSI_TAPE
-
-/* Here we have code to present the driver as a scsi driver
- as it is simultaneously presented as a block driver. The
- reason for doing this is to allow access to SCSI tape drives
- through the array controller. Note in particular, neither
- physical nor logical disks are presented through the scsi layer. */
-
-#include <linux/timer.h>
-#include <linux/completion.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-
-#include <linux/atomic.h>
-
-#include <scsi/scsi_cmnd.h>
-#include <scsi/scsi_device.h>
-#include <scsi/scsi_host.h>
-
-#include "cciss_scsi.h"
-
-#define CCISS_ABORT_MSG 0x00
-#define CCISS_RESET_MSG 0x01
-
-static int fill_cmd(ctlr_info_t *h, CommandList_struct *c, __u8 cmd, void *buff,
- size_t size,
- __u8 page_code, unsigned char *scsi3addr,
- int cmd_type);
-
-static CommandList_struct *cmd_alloc(ctlr_info_t *h);
-static CommandList_struct *cmd_special_alloc(ctlr_info_t *h);
-static void cmd_free(ctlr_info_t *h, CommandList_struct *c);
-static void cmd_special_free(ctlr_info_t *h, CommandList_struct *c);
-
-static int cciss_scsi_write_info(struct Scsi_Host *sh,
- char *buffer, /* data buffer */
- int length); /* length of data in buffer */
-static int cciss_scsi_show_info(struct seq_file *m,
- struct Scsi_Host *sh);
-
-static int cciss_scsi_queue_command (struct Scsi_Host *h,
- struct scsi_cmnd *cmd);
-static int cciss_eh_device_reset_handler(struct scsi_cmnd *);
-static int cciss_eh_abort_handler(struct scsi_cmnd *);
-
-static struct cciss_scsi_hba_t ccissscsi[MAX_CTLR] = {
- { .name = "cciss0", .ndevices = 0 },
- { .name = "cciss1", .ndevices = 0 },
- { .name = "cciss2", .ndevices = 0 },
- { .name = "cciss3", .ndevices = 0 },
- { .name = "cciss4", .ndevices = 0 },
- { .name = "cciss5", .ndevices = 0 },
- { .name = "cciss6", .ndevices = 0 },
- { .name = "cciss7", .ndevices = 0 },
-};
-
-static struct scsi_host_template cciss_driver_template = {
- .module = THIS_MODULE,
- .name = "cciss",
- .proc_name = "cciss",
- .write_info = cciss_scsi_write_info,
- .show_info = cciss_scsi_show_info,
- .queuecommand = cciss_scsi_queue_command,
- .this_id = 7,
- .use_clustering = DISABLE_CLUSTERING,
- /* Can't have eh_bus_reset_handler or eh_host_reset_handler for cciss */
- .eh_device_reset_handler= cciss_eh_device_reset_handler,
- .eh_abort_handler = cciss_eh_abort_handler,
-};
-
-#pragma pack(1)
-
-#define SCSI_PAD_32 8
-#define SCSI_PAD_64 8
-
-struct cciss_scsi_cmd_stack_elem_t {
- CommandList_struct cmd;
- ErrorInfo_struct Err;
- __u32 busaddr;
- int cmdindex;
- u8 pad[IS_32_BIT * SCSI_PAD_32 + IS_64_BIT * SCSI_PAD_64];
-};
-
-#pragma pack()
-
-#pragma pack(1)
-struct cciss_scsi_cmd_stack_t {
- struct cciss_scsi_cmd_stack_elem_t *pool;
- struct cciss_scsi_cmd_stack_elem_t **elem;
- dma_addr_t cmd_pool_handle;
- int top;
- int nelems;
-};
-#pragma pack()
-
-struct cciss_scsi_adapter_data_t {
- struct Scsi_Host *scsi_host;
- struct cciss_scsi_cmd_stack_t cmd_stack;
- SGDescriptor_struct **cmd_sg_list;
- int registered;
- spinlock_t lock; // to protect ccissscsi[ctlr];
-};
-
-#define CPQ_TAPE_LOCK(h, flags) spin_lock_irqsave( \
- &h->scsi_ctlr->lock, flags);
-#define CPQ_TAPE_UNLOCK(h, flags) spin_unlock_irqrestore( \
- &h->scsi_ctlr->lock, flags);
-
-static CommandList_struct *
-scsi_cmd_alloc(ctlr_info_t *h)
-{
- /* assume only one process in here at a time, locking done by caller. */
- /* use h->lock */
- /* might be better to rewrite how we allocate scsi commands in a way that */
- /* needs no locking at all. */
-
- /* take the top memory chunk off the stack and return it, if any. */
- struct cciss_scsi_cmd_stack_elem_t *c;
- struct cciss_scsi_adapter_data_t *sa;
- struct cciss_scsi_cmd_stack_t *stk;
- u64bit temp64;
-
- sa = h->scsi_ctlr;
- stk = &sa->cmd_stack;
-
- if (stk->top < 0)
- return NULL;
- c = stk->elem[stk->top];
- /* memset(c, 0, sizeof(*c)); */
- memset(&c->cmd, 0, sizeof(c->cmd));
- memset(&c->Err, 0, sizeof(c->Err));
- /* set physical addr of cmd and addr of scsi parameters */
- c->cmd.busaddr = c->busaddr;
- c->cmd.cmdindex = c->cmdindex;
- /* (__u32) (stk->cmd_pool_handle +
- (sizeof(struct cciss_scsi_cmd_stack_elem_t)*stk->top)); */
-
- temp64.val = (__u64) (c->busaddr + sizeof(CommandList_struct));
- /* (__u64) (stk->cmd_pool_handle +
- (sizeof(struct cciss_scsi_cmd_stack_elem_t)*stk->top) +
- sizeof(CommandList_struct)); */
- stk->top--;
- c->cmd.ErrDesc.Addr.lower = temp64.val32.lower;
- c->cmd.ErrDesc.Addr.upper = temp64.val32.upper;
- c->cmd.ErrDesc.Len = sizeof(ErrorInfo_struct);
-
- c->cmd.ctlr = h->ctlr;
- c->cmd.err_info = &c->Err;
-
- return (CommandList_struct *) c;
-}
-
-static void
-scsi_cmd_free(ctlr_info_t *h, CommandList_struct *c)
-{
- /* assume only one process in here at a time, locking done by caller. */
- /* use h->lock */
- /* drop the free memory chunk on top of the stack. */
-
- struct cciss_scsi_adapter_data_t *sa;
- struct cciss_scsi_cmd_stack_t *stk;
-
- sa = h->scsi_ctlr;
- stk = &sa->cmd_stack;
- stk->top++;
- if (stk->top >= stk->nelems) {
- dev_err(&h->pdev->dev,
- "scsi_cmd_free called too many times.\n");
- BUG();
- }
- stk->elem[stk->top] = (struct cciss_scsi_cmd_stack_elem_t *) c;
-}
-
-static int
-scsi_cmd_stack_setup(ctlr_info_t *h, struct cciss_scsi_adapter_data_t *sa)
-{
- int i;
- struct cciss_scsi_cmd_stack_t *stk;
- size_t size;
-
- stk = &sa->cmd_stack;
- stk->nelems = cciss_tape_cmds + 2;
- sa->cmd_sg_list = cciss_allocate_sg_chain_blocks(h,
- h->chainsize, stk->nelems);
- if (!sa->cmd_sg_list && h->chainsize > 0)
- return -ENOMEM;
-
- size = sizeof(struct cciss_scsi_cmd_stack_elem_t) * stk->nelems;
-
- /* Check alignment, see cciss_cmd.h near CommandList_struct def. */
- BUILD_BUG_ON((sizeof(*stk->pool) % COMMANDLIST_ALIGNMENT) != 0);
- /* pci_alloc_consistent guarantees 32-bit DMA address will be used */
- stk->pool = (struct cciss_scsi_cmd_stack_elem_t *)
- pci_alloc_consistent(h->pdev, size, &stk->cmd_pool_handle);
-
- if (stk->pool == NULL) {
- cciss_free_sg_chain_blocks(sa->cmd_sg_list, stk->nelems);
- sa->cmd_sg_list = NULL;
- return -ENOMEM;
- }
- stk->elem = kmalloc(sizeof(stk->elem[0]) * stk->nelems, GFP_KERNEL);
- if (!stk->elem) {
- pci_free_consistent(h->pdev, size, stk->pool,
- stk->cmd_pool_handle);
- return -1;
- }
- for (i = 0; i < stk->nelems; i++) {
- stk->elem[i] = &stk->pool[i];
- stk->elem[i]->busaddr = (__u32) (stk->cmd_pool_handle +
- (sizeof(struct cciss_scsi_cmd_stack_elem_t) * i));
- stk->elem[i]->cmdindex = i;
- }
- stk->top = stk->nelems-1;
- return 0;
-}
-
-static void
-scsi_cmd_stack_free(ctlr_info_t *h)
-{
- struct cciss_scsi_adapter_data_t *sa;
- struct cciss_scsi_cmd_stack_t *stk;
- size_t size;
-
- sa = h->scsi_ctlr;
- stk = &sa->cmd_stack;
- if (stk->top != stk->nelems-1) {
- dev_warn(&h->pdev->dev,
- "bug: %d scsi commands are still outstanding.\n",
- stk->nelems - stk->top);
- }
- size = sizeof(struct cciss_scsi_cmd_stack_elem_t) * stk->nelems;
-
- pci_free_consistent(h->pdev, size, stk->pool, stk->cmd_pool_handle);
- stk->pool = NULL;
- cciss_free_sg_chain_blocks(sa->cmd_sg_list, stk->nelems);
- kfree(stk->elem);
- stk->elem = NULL;
-}
-
-#if 0
-static void
-print_cmd(CommandList_struct *cp)
-{
- printk("queue:%d\n", cp->Header.ReplyQueue);
- printk("sglist:%d\n", cp->Header.SGList);
- printk("sgtot:%d\n", cp->Header.SGTotal);
- printk("Tag:0x%08x/0x%08x\n", cp->Header.Tag.upper,
- cp->Header.Tag.lower);
- printk("LUN:0x%8phN\n", cp->Header.LUN.LunAddrBytes);
- printk("CDBLen:%d\n", cp->Request.CDBLen);
- printk("Type:%d\n",cp->Request.Type.Type);
- printk("Attr:%d\n",cp->Request.Type.Attribute);
- printk(" Dir:%d\n",cp->Request.Type.Direction);
- printk("Timeout:%d\n",cp->Request.Timeout);
- printk("CDB: %16ph\n", cp->Request.CDB);
- printk("edesc.Addr: 0x%08x/0%08x, Len = %d\n",
- cp->ErrDesc.Addr.upper, cp->ErrDesc.Addr.lower,
- cp->ErrDesc.Len);
- printk("sgs..........Errorinfo:\n");
- printk("scsistatus:%d\n", cp->err_info->ScsiStatus);
- printk("senselen:%d\n", cp->err_info->SenseLen);
- printk("cmd status:%d\n", cp->err_info->CommandStatus);
- printk("resid cnt:%d\n", cp->err_info->ResidualCnt);
- printk("offense size:%d\n", cp->err_info->MoreErrInfo.Invalid_Cmd.offense_size);
- printk("offense byte:%d\n", cp->err_info->MoreErrInfo.Invalid_Cmd.offense_num);
- printk("offense value:%d\n", cp->err_info->MoreErrInfo.Invalid_Cmd.offense_value);
-}
-#endif
-
-static int
-find_bus_target_lun(ctlr_info_t *h, int *bus, int *target, int *lun)
-{
- /* finds an unused bus, target, lun for a new device */
- /* assumes h->scsi_ctlr->lock is held */
- int i, found=0;
- unsigned char target_taken[CCISS_MAX_SCSI_DEVS_PER_HBA];
-
- memset(&target_taken[0], 0, CCISS_MAX_SCSI_DEVS_PER_HBA);
-
- target_taken[SELF_SCSI_ID] = 1;
- for (i = 0; i < ccissscsi[h->ctlr].ndevices; i++)
- target_taken[ccissscsi[h->ctlr].dev[i].target] = 1;
-
- for (i = 0; i < CCISS_MAX_SCSI_DEVS_PER_HBA; i++) {
- if (!target_taken[i]) {
- *bus = 0; *target=i; *lun = 0; found=1;
- break;
- }
- }
- return (!found);
-}
-struct scsi2map {
- char scsi3addr[8];
- int bus, target, lun;
-};
-
-static int
-cciss_scsi_add_entry(ctlr_info_t *h, int hostno,
- struct cciss_scsi_dev_t *device,
- struct scsi2map *added, int *nadded)
-{
- /* assumes h->scsi_ctlr->lock is held */
- int n = ccissscsi[h->ctlr].ndevices;
- struct cciss_scsi_dev_t *sd;
- int i, bus, target, lun;
- unsigned char addr1[8], addr2[8];
-
- if (n >= CCISS_MAX_SCSI_DEVS_PER_HBA) {
- dev_warn(&h->pdev->dev, "Too many devices, "
- "some will be inaccessible.\n");
- return -1;
- }
-
- bus = target = -1;
- lun = 0;
- /* Is this device a non-zero lun of a multi-lun device */
- /* byte 4 of the 8-byte LUN addr will contain the logical unit no. */
- if (device->scsi3addr[4] != 0) {
- /* Search through our list and find the device which */
- /* has the same 8 byte LUN address, excepting byte 4. */
- /* Assign the same bus and target for this new LUN. */
- /* Use the logical unit number from the firmware. */
- memcpy(addr1, device->scsi3addr, 8);
- addr1[4] = 0;
- for (i = 0; i < n; i++) {
- sd = &ccissscsi[h->ctlr].dev[i];
- memcpy(addr2, sd->scsi3addr, 8);
- addr2[4] = 0;
- /* differ only in byte 4? */
- if (memcmp(addr1, addr2, 8) == 0) {
- bus = sd->bus;
- target = sd->target;
- lun = device->scsi3addr[4];
- break;
- }
- }
- }
-
- sd = &ccissscsi[h->ctlr].dev[n];
- if (lun == 0) {
- if (find_bus_target_lun(h,
- &sd->bus, &sd->target, &sd->lun) != 0)
- return -1;
- } else {
- sd->bus = bus;
- sd->target = target;
- sd->lun = lun;
- }
- added[*nadded].bus = sd->bus;
- added[*nadded].target = sd->target;
- added[*nadded].lun = sd->lun;
- (*nadded)++;
-
- memcpy(sd->scsi3addr, device->scsi3addr, 8);
- memcpy(sd->vendor, device->vendor, sizeof(sd->vendor));
- memcpy(sd->revision, device->revision, sizeof(sd->revision));
- memcpy(sd->device_id, device->device_id, sizeof(sd->device_id));
- sd->devtype = device->devtype;
-
- ccissscsi[h->ctlr].ndevices++;
-
- /* initially, (before registering with scsi layer) we don't
- know our hostno and we don't want to print anything first
- time anyway (the scsi layer's inquiries will show that info) */
- if (hostno != -1)
- dev_info(&h->pdev->dev, "%s device c%db%dt%dl%d added.\n",
- scsi_device_type(sd->devtype), hostno,
- sd->bus, sd->target, sd->lun);
- return 0;
-}
-
-static void
-cciss_scsi_remove_entry(ctlr_info_t *h, int hostno, int entry,
- struct scsi2map *removed, int *nremoved)
-{
- /* assumes h->ctlr]->scsi_ctlr->lock is held */
- int i;
- struct cciss_scsi_dev_t sd;
-
- if (entry < 0 || entry >= CCISS_MAX_SCSI_DEVS_PER_HBA) return;
- sd = ccissscsi[h->ctlr].dev[entry];
- removed[*nremoved].bus = sd.bus;
- removed[*nremoved].target = sd.target;
- removed[*nremoved].lun = sd.lun;
- (*nremoved)++;
- for (i = entry; i < ccissscsi[h->ctlr].ndevices-1; i++)
- ccissscsi[h->ctlr].dev[i] = ccissscsi[h->ctlr].dev[i+1];
- ccissscsi[h->ctlr].ndevices--;
- dev_info(&h->pdev->dev, "%s device c%db%dt%dl%d removed.\n",
- scsi_device_type(sd.devtype), hostno,
- sd.bus, sd.target, sd.lun);
-}
-
-
-#define SCSI3ADDR_EQ(a,b) ( \
- (a)[7] == (b)[7] && \
- (a)[6] == (b)[6] && \
- (a)[5] == (b)[5] && \
- (a)[4] == (b)[4] && \
- (a)[3] == (b)[3] && \
- (a)[2] == (b)[2] && \
- (a)[1] == (b)[1] && \
- (a)[0] == (b)[0])
-
-static void fixup_botched_add(ctlr_info_t *h, char *scsi3addr)
-{
- /* called when scsi_add_device fails in order to re-adjust */
- /* ccissscsi[] to match the mid layer's view. */
- unsigned long flags;
- int i, j;
- CPQ_TAPE_LOCK(h, flags);
- for (i = 0; i < ccissscsi[h->ctlr].ndevices; i++) {
- if (memcmp(scsi3addr,
- ccissscsi[h->ctlr].dev[i].scsi3addr, 8) == 0) {
- for (j = i; j < ccissscsi[h->ctlr].ndevices-1; j++)
- ccissscsi[h->ctlr].dev[j] =
- ccissscsi[h->ctlr].dev[j+1];
- ccissscsi[h->ctlr].ndevices--;
- break;
- }
- }
- CPQ_TAPE_UNLOCK(h, flags);
-}
-
-static int device_is_the_same(struct cciss_scsi_dev_t *dev1,
- struct cciss_scsi_dev_t *dev2)
-{
- return dev1->devtype == dev2->devtype &&
- memcmp(dev1->scsi3addr, dev2->scsi3addr,
- sizeof(dev1->scsi3addr)) == 0 &&
- memcmp(dev1->device_id, dev2->device_id,
- sizeof(dev1->device_id)) == 0 &&
- memcmp(dev1->vendor, dev2->vendor,
- sizeof(dev1->vendor)) == 0 &&
- memcmp(dev1->model, dev2->model,
- sizeof(dev1->model)) == 0 &&
- memcmp(dev1->revision, dev2->revision,
- sizeof(dev1->revision)) == 0;
-}
-
-static int
-adjust_cciss_scsi_table(ctlr_info_t *h, int hostno,
- struct cciss_scsi_dev_t sd[], int nsds)
-{
- /* sd contains scsi3 addresses and devtypes, but
- bus target and lun are not filled in. This funciton
- takes what's in sd to be the current and adjusts
- ccissscsi[] to be in line with what's in sd. */
-
- int i,j, found, changes=0;
- struct cciss_scsi_dev_t *csd;
- unsigned long flags;
- struct scsi2map *added, *removed;
- int nadded, nremoved;
- struct Scsi_Host *sh = NULL;
-
- added = kzalloc(sizeof(*added) * CCISS_MAX_SCSI_DEVS_PER_HBA,
- GFP_KERNEL);
- removed = kzalloc(sizeof(*removed) * CCISS_MAX_SCSI_DEVS_PER_HBA,
- GFP_KERNEL);
-
- if (!added || !removed) {
- dev_warn(&h->pdev->dev,
- "Out of memory in adjust_cciss_scsi_table\n");
- goto free_and_out;
- }
-
- CPQ_TAPE_LOCK(h, flags);
-
- if (hostno != -1) /* if it's not the first time... */
- sh = h->scsi_ctlr->scsi_host;
-
- /* find any devices in ccissscsi[] that are not in
- sd[] and remove them from ccissscsi[] */
-
- i = 0;
- nremoved = 0;
- nadded = 0;
- while (i < ccissscsi[h->ctlr].ndevices) {
- csd = &ccissscsi[h->ctlr].dev[i];
- found=0;
- for (j=0;j<nsds;j++) {
- if (SCSI3ADDR_EQ(sd[j].scsi3addr,
- csd->scsi3addr)) {
- if (device_is_the_same(&sd[j], csd))
- found=2;
- else
- found=1;
- break;
- }
- }
-
- if (found == 0) { /* device no longer present. */
- changes++;
- cciss_scsi_remove_entry(h, hostno, i,
- removed, &nremoved);
- /* remove ^^^, hence i not incremented */
- } else if (found == 1) { /* device is different in some way */
- changes++;
- dev_info(&h->pdev->dev,
- "device c%db%dt%dl%d has changed.\n",
- hostno, csd->bus, csd->target, csd->lun);
- cciss_scsi_remove_entry(h, hostno, i,
- removed, &nremoved);
- /* remove ^^^, hence i not incremented */
- if (cciss_scsi_add_entry(h, hostno, &sd[j],
- added, &nadded) != 0)
- /* we just removed one, so add can't fail. */
- BUG();
- csd->devtype = sd[j].devtype;
- memcpy(csd->device_id, sd[j].device_id,
- sizeof(csd->device_id));
- memcpy(csd->vendor, sd[j].vendor,
- sizeof(csd->vendor));
- memcpy(csd->model, sd[j].model,
- sizeof(csd->model));
- memcpy(csd->revision, sd[j].revision,
- sizeof(csd->revision));
- } else /* device is same as it ever was, */
- i++; /* so just move along. */
- }
-
- /* Now, make sure every device listed in sd[] is also
- listed in ccissscsi[], adding them if they aren't found */
-
- for (i=0;i<nsds;i++) {
- found=0;
- for (j = 0; j < ccissscsi[h->ctlr].ndevices; j++) {
- csd = &ccissscsi[h->ctlr].dev[j];
- if (SCSI3ADDR_EQ(sd[i].scsi3addr,
- csd->scsi3addr)) {
- if (device_is_the_same(&sd[i], csd))
- found=2; /* found device */
- else
- found=1; /* found a bug. */
- break;
- }
- }
- if (!found) {
- changes++;
- if (cciss_scsi_add_entry(h, hostno, &sd[i],
- added, &nadded) != 0)
- break;
- } else if (found == 1) {
- /* should never happen... */
- changes++;
- dev_warn(&h->pdev->dev,
- "device unexpectedly changed\n");
- /* but if it does happen, we just ignore that device */
- }
- }
- CPQ_TAPE_UNLOCK(h, flags);
-
- /* Don't notify scsi mid layer of any changes the first time through */
- /* (or if there are no changes) scsi_scan_host will do it later the */
- /* first time through. */
- if (hostno == -1 || !changes)
- goto free_and_out;
-
- /* Notify scsi mid layer of any removed devices */
- for (i = 0; i < nremoved; i++) {
- struct scsi_device *sdev =
- scsi_device_lookup(sh, removed[i].bus,
- removed[i].target, removed[i].lun);
- if (sdev != NULL) {
- scsi_remove_device(sdev);
- scsi_device_put(sdev);
- } else {
- /* We don't expect to get here. */
- /* future cmds to this device will get selection */
- /* timeout as if the device was gone. */
- dev_warn(&h->pdev->dev, "didn't find "
- "c%db%dt%dl%d\n for removal.",
- hostno, removed[i].bus,
- removed[i].target, removed[i].lun);
- }
- }
-
- /* Notify scsi mid layer of any added devices */
- for (i = 0; i < nadded; i++) {
- int rc;
- rc = scsi_add_device(sh, added[i].bus,
- added[i].target, added[i].lun);
- if (rc == 0)
- continue;
- dev_warn(&h->pdev->dev, "scsi_add_device "
- "c%db%dt%dl%d failed, device not added.\n",
- hostno, added[i].bus, added[i].target, added[i].lun);
- /* now we have to remove it from ccissscsi, */
- /* since it didn't get added to scsi mid layer */
- fixup_botched_add(h, added[i].scsi3addr);
- }
-
-free_and_out:
- kfree(added);
- kfree(removed);
- return 0;
-}
-
-static int
-lookup_scsi3addr(ctlr_info_t *h, int bus, int target, int lun, char *scsi3addr)
-{
- int i;
- struct cciss_scsi_dev_t *sd;
- unsigned long flags;
-
- CPQ_TAPE_LOCK(h, flags);
- for (i = 0; i < ccissscsi[h->ctlr].ndevices; i++) {
- sd = &ccissscsi[h->ctlr].dev[i];
- if (sd->bus == bus &&
- sd->target == target &&
- sd->lun == lun) {
- memcpy(scsi3addr, &sd->scsi3addr[0], 8);
- CPQ_TAPE_UNLOCK(h, flags);
- return 0;
- }
- }
- CPQ_TAPE_UNLOCK(h, flags);
- return -1;
-}
-
-static void
-cciss_scsi_setup(ctlr_info_t *h)
-{
- struct cciss_scsi_adapter_data_t * shba;
-
- ccissscsi[h->ctlr].ndevices = 0;
- shba = kmalloc(sizeof(*shba), GFP_KERNEL);
- if (shba == NULL)
- return;
- shba->scsi_host = NULL;
- spin_lock_init(&shba->lock);
- shba->registered = 0;
- if (scsi_cmd_stack_setup(h, shba) != 0) {
- kfree(shba);
- shba = NULL;
- }
- h->scsi_ctlr = shba;
- return;
-}
-
-static void complete_scsi_command(CommandList_struct *c, int timeout,
- __u32 tag)
-{
- struct scsi_cmnd *cmd;
- ctlr_info_t *h;
- ErrorInfo_struct *ei;
-
- ei = c->err_info;
-
- /* First, see if it was a message rather than a command */
- if (c->Request.Type.Type == TYPE_MSG) {
- c->cmd_type = CMD_MSG_DONE;
- return;
- }
-
- cmd = (struct scsi_cmnd *) c->scsi_cmd;
- h = hba[c->ctlr];
-
- scsi_dma_unmap(cmd);
- if (c->Header.SGTotal > h->max_cmd_sgentries)
- cciss_unmap_sg_chain_block(h, c);
-
- cmd->result = (DID_OK << 16); /* host byte */
- cmd->result |= (COMMAND_COMPLETE << 8); /* msg byte */
- /* cmd->result |= (GOOD < 1); */ /* status byte */
-
- cmd->result |= (ei->ScsiStatus);
- /* printk("Scsistatus is 0x%02x\n", ei->ScsiStatus); */
-
- /* copy the sense data whether we need to or not. */
-
- memcpy(cmd->sense_buffer, ei->SenseInfo,
- ei->SenseLen > SCSI_SENSE_BUFFERSIZE ?
- SCSI_SENSE_BUFFERSIZE :
- ei->SenseLen);
- scsi_set_resid(cmd, ei->ResidualCnt);
-
- if (ei->CommandStatus != 0) { /* an error has occurred */
- switch (ei->CommandStatus) {
- case CMD_TARGET_STATUS:
- /* Pass it up to the upper layers... */
- if (!ei->ScsiStatus) {
-
- /* Ordinarily, this case should never happen, but there is a bug
- in some released firmware revisions that allows it to happen
- if, for example, a 4100 backplane loses power and the tape
- drive is in it. We assume that it's a fatal error of some
- kind because we can't show that it wasn't. We will make it
- look like selection timeout since that is the most common
- reason for this to occur, and it's severe enough. */
-
- cmd->result = DID_NO_CONNECT << 16;
- }
- break;
- case CMD_DATA_UNDERRUN: /* let mid layer handle it. */
- break;
- case CMD_DATA_OVERRUN:
- dev_warn(&h->pdev->dev, "%p has"
- " completed with data overrun "
- "reported\n", c);
- break;
- case CMD_INVALID: {
- /*
- print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, c, sizeof(*c), false);
- print_cmd(c);
- */
- /* We get CMD_INVALID if you address a non-existent tape drive instead
- of a selection timeout (no response). You will see this if you yank
- out a tape drive, then try to access it. This is kind of a shame
- because it means that any other CMD_INVALID (e.g. driver bug) will
- get interpreted as a missing target. */
- cmd->result = DID_NO_CONNECT << 16;
- }
- break;
- case CMD_PROTOCOL_ERR:
- cmd->result = DID_ERROR << 16;
- dev_warn(&h->pdev->dev,
- "%p has protocol error\n", c);
- break;
- case CMD_HARDWARE_ERR:
- cmd->result = DID_ERROR << 16;
- dev_warn(&h->pdev->dev,
- "%p had hardware error\n", c);
- break;
- case CMD_CONNECTION_LOST:
- cmd->result = DID_ERROR << 16;
- dev_warn(&h->pdev->dev,
- "%p had connection lost\n", c);
- break;
- case CMD_ABORTED:
- cmd->result = DID_ABORT << 16;
- dev_warn(&h->pdev->dev, "%p was aborted\n", c);
- break;
- case CMD_ABORT_FAILED:
- cmd->result = DID_ERROR << 16;
- dev_warn(&h->pdev->dev,
- "%p reports abort failed\n", c);
- break;
- case CMD_UNSOLICITED_ABORT:
- cmd->result = DID_ABORT << 16;
- dev_warn(&h->pdev->dev, "%p aborted due to an "
- "unsolicited abort\n", c);
- break;
- case CMD_TIMEOUT:
- cmd->result = DID_TIME_OUT << 16;
- dev_warn(&h->pdev->dev, "%p timedout\n", c);
- break;
- case CMD_UNABORTABLE:
- cmd->result = DID_ERROR << 16;
- dev_warn(&h->pdev->dev, "c %p command "
- "unabortable\n", c);
- break;
- default:
- cmd->result = DID_ERROR << 16;
- dev_warn(&h->pdev->dev,
- "%p returned unknown status %x\n", c,
- ei->CommandStatus);
- }
- }
- cmd->scsi_done(cmd);
- scsi_cmd_free(h, c);
-}
-
-static int
-cciss_scsi_detect(ctlr_info_t *h)
-{
- struct Scsi_Host *sh;
- int error;
-
- sh = scsi_host_alloc(&cciss_driver_template, sizeof(struct ctlr_info *));
- if (sh == NULL)
- goto fail;
- sh->io_port = 0; // good enough? FIXME,
- sh->n_io_port = 0; // I don't think we use these two...
- sh->this_id = SELF_SCSI_ID;
- sh->can_queue = cciss_tape_cmds;
- sh->sg_tablesize = h->maxsgentries;
- sh->max_cmd_len = MAX_COMMAND_SIZE;
- sh->max_sectors = h->cciss_max_sectors;
-
- ((struct cciss_scsi_adapter_data_t *)
- h->scsi_ctlr)->scsi_host = sh;
- sh->hostdata[0] = (unsigned long) h;
- sh->irq = h->intr[SIMPLE_MODE_INT];
- sh->unique_id = sh->irq;
- error = scsi_add_host(sh, &h->pdev->dev);
- if (error)
- goto fail_host_put;
- scsi_scan_host(sh);
- return 1;
-
- fail_host_put:
- scsi_host_put(sh);
- fail:
- return 0;
-}
-
-static void
-cciss_unmap_one(struct pci_dev *pdev,
- CommandList_struct *c,
- size_t buflen,
- int data_direction)
-{
- u64bit addr64;
-
- addr64.val32.lower = c->SG[0].Addr.lower;
- addr64.val32.upper = c->SG[0].Addr.upper;
- pci_unmap_single(pdev, (dma_addr_t) addr64.val, buflen, data_direction);
-}
-
-static void
-cciss_map_one(struct pci_dev *pdev,
- CommandList_struct *c,
- unsigned char *buf,
- size_t buflen,
- int data_direction)
-{
- __u64 addr64;
-
- addr64 = (__u64) pci_map_single(pdev, buf, buflen, data_direction);
- c->SG[0].Addr.lower =
- (__u32) (addr64 & (__u64) 0x00000000FFFFFFFF);
- c->SG[0].Addr.upper =
- (__u32) ((addr64 >> 32) & (__u64) 0x00000000FFFFFFFF);
- c->SG[0].Len = buflen;
- c->Header.SGList = (__u8) 1; /* no. SGs contig in this cmd */
- c->Header.SGTotal = (__u16) 1; /* total sgs in this cmd list */
-}
-
-static int
-cciss_scsi_do_simple_cmd(ctlr_info_t *h,
- CommandList_struct *c,
- unsigned char *scsi3addr,
- unsigned char *cdb,
- unsigned char cdblen,
- unsigned char *buf, int bufsize,
- int direction)
-{
- DECLARE_COMPLETION_ONSTACK(wait);
-
- c->cmd_type = CMD_IOCTL_PEND; /* treat this like an ioctl */
- c->scsi_cmd = NULL;
- c->Header.ReplyQueue = 0; /* unused in simple mode */
- memcpy(&c->Header.LUN, scsi3addr, sizeof(c->Header.LUN));
- c->Header.Tag.lower = c->busaddr; /* Use k. address of cmd as tag */
- // Fill in the request block...
-
- /* printk("Using scsi3addr 0x%02x%0x2%0x2%0x2%0x2%0x2%0x2%0x2\n",
- scsi3addr[0], scsi3addr[1], scsi3addr[2], scsi3addr[3],
- scsi3addr[4], scsi3addr[5], scsi3addr[6], scsi3addr[7]); */
-
- memset(c->Request.CDB, 0, sizeof(c->Request.CDB));
- memcpy(c->Request.CDB, cdb, cdblen);
- c->Request.Timeout = 0;
- c->Request.CDBLen = cdblen;
- c->Request.Type.Type = TYPE_CMD;
- c->Request.Type.Attribute = ATTR_SIMPLE;
- c->Request.Type.Direction = direction;
-
- /* Fill in the SG list and do dma mapping */
- cciss_map_one(h->pdev, c, (unsigned char *) buf,
- bufsize, DMA_FROM_DEVICE);
-
- c->waiting = &wait;
- enqueue_cmd_and_start_io(h, c);
- wait_for_completion(&wait);
-
- /* undo the dma mapping */
- cciss_unmap_one(h->pdev, c, bufsize, DMA_FROM_DEVICE);
- return(0);
-}
-
-static void
-cciss_scsi_interpret_error(ctlr_info_t *h, CommandList_struct *c)
-{
- ErrorInfo_struct *ei;
-
- ei = c->err_info;
- switch (ei->CommandStatus) {
- case CMD_TARGET_STATUS:
- dev_warn(&h->pdev->dev,
- "cmd %p has completed with errors\n", c);
- dev_warn(&h->pdev->dev,
- "cmd %p has SCSI Status = %x\n",
- c, ei->ScsiStatus);
- if (ei->ScsiStatus == 0)
- dev_warn(&h->pdev->dev,
- "SCSI status is abnormally zero. "
- "(probably indicates selection timeout "
- "reported incorrectly due to a known "
- "firmware bug, circa July, 2001.)\n");
- break;
- case CMD_DATA_UNDERRUN: /* let mid layer handle it. */
- dev_info(&h->pdev->dev, "UNDERRUN\n");
- break;
- case CMD_DATA_OVERRUN:
- dev_warn(&h->pdev->dev, "%p has"
- " completed with data overrun "
- "reported\n", c);
- break;
- case CMD_INVALID: {
- /* controller unfortunately reports SCSI passthru's */
- /* to non-existent targets as invalid commands. */
- dev_warn(&h->pdev->dev,
- "%p is reported invalid (probably means "
- "target device no longer present)\n", c);
- /*
- print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, c, sizeof(*c), false);
- print_cmd(c);
- */
- }
- break;
- case CMD_PROTOCOL_ERR:
- dev_warn(&h->pdev->dev, "%p has protocol error\n", c);
- break;
- case CMD_HARDWARE_ERR:
- /* cmd->result = DID_ERROR << 16; */
- dev_warn(&h->pdev->dev, "%p had hardware error\n", c);
- break;
- case CMD_CONNECTION_LOST:
- dev_warn(&h->pdev->dev, "%p had connection lost\n", c);
- break;
- case CMD_ABORTED:
- dev_warn(&h->pdev->dev, "%p was aborted\n", c);
- break;
- case CMD_ABORT_FAILED:
- dev_warn(&h->pdev->dev,
- "%p reports abort failed\n", c);
- break;
- case CMD_UNSOLICITED_ABORT:
- dev_warn(&h->pdev->dev,
- "%p aborted due to an unsolicited abort\n", c);
- break;
- case CMD_TIMEOUT:
- dev_warn(&h->pdev->dev, "%p timedout\n", c);
- break;
- case CMD_UNABORTABLE:
- dev_warn(&h->pdev->dev,
- "%p unabortable\n", c);
- break;
- default:
- dev_warn(&h->pdev->dev,
- "%p returned unknown status %x\n",
- c, ei->CommandStatus);
- }
-}
-
-static int
-cciss_scsi_do_inquiry(ctlr_info_t *h, unsigned char *scsi3addr,
- unsigned char page, unsigned char *buf,
- unsigned char bufsize)
-{
- int rc;
- CommandList_struct *c;
- char cdb[6];
- ErrorInfo_struct *ei;
- unsigned long flags;
-
- spin_lock_irqsave(&h->lock, flags);
- c = scsi_cmd_alloc(h);
- spin_unlock_irqrestore(&h->lock, flags);
-
- if (c == NULL) { /* trouble... */
- printk("cmd_alloc returned NULL!\n");
- return -1;
- }
-
- ei = c->err_info;
-
- cdb[0] = CISS_INQUIRY;
- cdb[1] = (page != 0);
- cdb[2] = page;
- cdb[3] = 0;
- cdb[4] = bufsize;
- cdb[5] = 0;
- rc = cciss_scsi_do_simple_cmd(h, c, scsi3addr, cdb,
- 6, buf, bufsize, XFER_READ);
-
- if (rc != 0) return rc; /* something went wrong */
-
- if (ei->CommandStatus != 0 &&
- ei->CommandStatus != CMD_DATA_UNDERRUN) {
- cciss_scsi_interpret_error(h, c);
- rc = -1;
- }
- spin_lock_irqsave(&h->lock, flags);
- scsi_cmd_free(h, c);
- spin_unlock_irqrestore(&h->lock, flags);
- return rc;
-}
-
-/* Get the device id from inquiry page 0x83 */
-static int cciss_scsi_get_device_id(ctlr_info_t *h, unsigned char *scsi3addr,
- unsigned char *device_id, int buflen)
-{
- int rc;
- unsigned char *buf;
-
- if (buflen > 16)
- buflen = 16;
- buf = kzalloc(64, GFP_KERNEL);
- if (!buf)
- return -1;
- rc = cciss_scsi_do_inquiry(h, scsi3addr, 0x83, buf, 64);
- if (rc == 0)
- memcpy(device_id, &buf[8], buflen);
- kfree(buf);
- return rc != 0;
-}
-
-static int
-cciss_scsi_do_report_phys_luns(ctlr_info_t *h,
- ReportLunData_struct *buf, int bufsize)
-{
- int rc;
- CommandList_struct *c;
- unsigned char cdb[12];
- unsigned char scsi3addr[8];
- ErrorInfo_struct *ei;
- unsigned long flags;
-
- spin_lock_irqsave(&h->lock, flags);
- c = scsi_cmd_alloc(h);
- spin_unlock_irqrestore(&h->lock, flags);
- if (c == NULL) { /* trouble... */
- printk("cmd_alloc returned NULL!\n");
- return -1;
- }
-
- memset(&scsi3addr[0], 0, 8); /* address the controller */
- cdb[0] = CISS_REPORT_PHYS;
- cdb[1] = 0;
- cdb[2] = 0;
- cdb[3] = 0;
- cdb[4] = 0;
- cdb[5] = 0;
- cdb[6] = (bufsize >> 24) & 0xFF; //MSB
- cdb[7] = (bufsize >> 16) & 0xFF;
- cdb[8] = (bufsize >> 8) & 0xFF;
- cdb[9] = bufsize & 0xFF;
- cdb[10] = 0;
- cdb[11] = 0;
-
- rc = cciss_scsi_do_simple_cmd(h, c, scsi3addr,
- cdb, 12,
- (unsigned char *) buf,
- bufsize, XFER_READ);
-
- if (rc != 0) return rc; /* something went wrong */
-
- ei = c->err_info;
- if (ei->CommandStatus != 0 &&
- ei->CommandStatus != CMD_DATA_UNDERRUN) {
- cciss_scsi_interpret_error(h, c);
- rc = -1;
- }
- spin_lock_irqsave(&h->lock, flags);
- scsi_cmd_free(h, c);
- spin_unlock_irqrestore(&h->lock, flags);
- return rc;
-}
-
-static void
-cciss_update_non_disk_devices(ctlr_info_t *h, int hostno)
-{
- /* the idea here is we could get notified from /proc
- that some devices have changed, so we do a report
- physical luns cmd, and adjust our list of devices
- accordingly. (We can't rely on the scsi-mid layer just
- doing inquiries, because the "busses" that the scsi
- mid-layer probes are totally fabricated by this driver,
- so new devices wouldn't show up.
-
- the scsi3addr's of devices won't change so long as the
- adapter is not reset. That means we can rescan and
- tell which devices we already know about, vs. new
- devices, vs. disappearing devices.
-
- Also, if you yank out a tape drive, then put in a disk
- in it's place, (say, a configured volume from another
- array controller for instance) _don't_ poke this driver
- (so it thinks it's still a tape, but _do_ poke the scsi
- mid layer, so it does an inquiry... the scsi mid layer
- will see the physical disk. This would be bad. Need to
- think about how to prevent that. One idea would be to
- snoop all scsi responses and if an inquiry repsonse comes
- back that reports a disk, chuck it an return selection
- timeout instead and adjust our table... Not sure i like
- that though.
-
- */
-#define OBDR_TAPE_INQ_SIZE 49
-#define OBDR_TAPE_SIG "$DR-10"
- ReportLunData_struct *ld_buff;
- unsigned char *inq_buff;
- unsigned char scsi3addr[8];
- __u32 num_luns=0;
- unsigned char *ch;
- struct cciss_scsi_dev_t *currentsd, *this_device;
- int ncurrent=0;
- int reportlunsize = sizeof(*ld_buff) + CISS_MAX_PHYS_LUN * 8;
- int i;
-
- ld_buff = kzalloc(reportlunsize, GFP_KERNEL);
- inq_buff = kmalloc(OBDR_TAPE_INQ_SIZE, GFP_KERNEL);
- currentsd = kzalloc(sizeof(*currentsd) *
- (CCISS_MAX_SCSI_DEVS_PER_HBA+1), GFP_KERNEL);
- if (ld_buff == NULL || inq_buff == NULL || currentsd == NULL) {
- printk(KERN_ERR "cciss: out of memory\n");
- goto out;
- }
- this_device = &currentsd[CCISS_MAX_SCSI_DEVS_PER_HBA];
- if (cciss_scsi_do_report_phys_luns(h, ld_buff, reportlunsize) == 0) {
- ch = &ld_buff->LUNListLength[0];
- num_luns = ((ch[0]<<24) | (ch[1]<<16) | (ch[2]<<8) | ch[3]) / 8;
- if (num_luns > CISS_MAX_PHYS_LUN) {
- printk(KERN_WARNING
- "cciss: Maximum physical LUNs (%d) exceeded. "
- "%d LUNs ignored.\n", CISS_MAX_PHYS_LUN,
- num_luns - CISS_MAX_PHYS_LUN);
- num_luns = CISS_MAX_PHYS_LUN;
- }
- }
- else {
- printk(KERN_ERR "cciss: Report physical LUNs failed.\n");
- goto out;
- }
-
-
- /* adjust our table of devices */
- for (i = 0; i < num_luns; i++) {
- /* for each physical lun, do an inquiry */
- if (ld_buff->LUN[i][3] & 0xC0) continue;
- memset(inq_buff, 0, OBDR_TAPE_INQ_SIZE);
- memcpy(&scsi3addr[0], &ld_buff->LUN[i][0], 8);
-
- if (cciss_scsi_do_inquiry(h, scsi3addr, 0, inq_buff,
- (unsigned char) OBDR_TAPE_INQ_SIZE) != 0)
- /* Inquiry failed (msg printed already) */
- continue; /* so we will skip this device. */
-
- this_device->devtype = (inq_buff[0] & 0x1f);
- this_device->bus = -1;
- this_device->target = -1;
- this_device->lun = -1;
- memcpy(this_device->scsi3addr, scsi3addr, 8);
- memcpy(this_device->vendor, &inq_buff[8],
- sizeof(this_device->vendor));
- memcpy(this_device->model, &inq_buff[16],
- sizeof(this_device->model));
- memcpy(this_device->revision, &inq_buff[32],
- sizeof(this_device->revision));
- memset(this_device->device_id, 0,
- sizeof(this_device->device_id));
- cciss_scsi_get_device_id(h, scsi3addr,
- this_device->device_id, sizeof(this_device->device_id));
-
- switch (this_device->devtype) {
- case 0x05: /* CD-ROM */ {
-
- /* We don't *really* support actual CD-ROM devices,
- * just this "One Button Disaster Recovery" tape drive
- * which temporarily pretends to be a CD-ROM drive.
- * So we check that the device is really an OBDR tape
- * device by checking for "$DR-10" in bytes 43-48 of
- * the inquiry data.
- */
- char obdr_sig[7];
-
- strncpy(obdr_sig, &inq_buff[43], 6);
- obdr_sig[6] = '\0';
- if (strncmp(obdr_sig, OBDR_TAPE_SIG, 6) != 0)
- /* Not OBDR device, ignore it. */
- break;
- }
- /* fall through . . . */
- case 0x01: /* sequential access, (tape) */
- case 0x08: /* medium changer */
- if (ncurrent >= CCISS_MAX_SCSI_DEVS_PER_HBA) {
- printk(KERN_INFO "cciss%d: %s ignored, "
- "too many devices.\n", h->ctlr,
- scsi_device_type(this_device->devtype));
- break;
- }
- currentsd[ncurrent] = *this_device;
- ncurrent++;
- break;
- default:
- break;
- }
- }
-
- adjust_cciss_scsi_table(h, hostno, currentsd, ncurrent);
-out:
- kfree(inq_buff);
- kfree(ld_buff);
- kfree(currentsd);
- return;
-}
-
-static int
-is_keyword(char *ptr, int len, char *verb) // Thanks to ncr53c8xx.c
-{
- int verb_len = strlen(verb);
- if (len >= verb_len && !memcmp(verb,ptr,verb_len))
- return verb_len;
- else
- return 0;
-}
-
-static int
-cciss_scsi_user_command(ctlr_info_t *h, int hostno, char *buffer, int length)
-{
- int arg_len;
-
- if ((arg_len = is_keyword(buffer, length, "rescan")) != 0)
- cciss_update_non_disk_devices(h, hostno);
- else
- return -EINVAL;
- return length;
-}
-
-static int
-cciss_scsi_write_info(struct Scsi_Host *sh,
- char *buffer, /* data buffer */
- int length) /* length of data in buffer */
-{
- ctlr_info_t *h = (ctlr_info_t *) sh->hostdata[0];
- if (h == NULL) /* This really shouldn't ever happen. */
- return -EINVAL;
-
- return cciss_scsi_user_command(h, sh->host_no,
- buffer, length);
-}
-
-static int
-cciss_scsi_show_info(struct seq_file *m, struct Scsi_Host *sh)
-{
-
- ctlr_info_t *h = (ctlr_info_t *) sh->hostdata[0];
- int i;
-
- if (h == NULL) /* This really shouldn't ever happen. */
- return -EINVAL;
-
- seq_printf(m, "cciss%d: SCSI host: %d\n",
- h->ctlr, sh->host_no);
-
- /* this information is needed by apps to know which cciss
- device corresponds to which scsi host number without
- having to open a scsi target device node. The device
- information is not a duplicate of /proc/scsi/scsi because
- the two may be out of sync due to scsi hotplug, rather
- this info is for an app to be able to use to know how to
- get them back in sync. */
-
- for (i = 0; i < ccissscsi[h->ctlr].ndevices; i++) {
- struct cciss_scsi_dev_t *sd =
- &ccissscsi[h->ctlr].dev[i];
- seq_printf(m, "c%db%dt%dl%d %02d "
- "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
- sh->host_no, sd->bus, sd->target, sd->lun,
- sd->devtype,
- sd->scsi3addr[0], sd->scsi3addr[1],
- sd->scsi3addr[2], sd->scsi3addr[3],
- sd->scsi3addr[4], sd->scsi3addr[5],
- sd->scsi3addr[6], sd->scsi3addr[7]);
- }
- return 0;
-}
-
-/* cciss_scatter_gather takes a struct scsi_cmnd, (cmd), and does the pci
- dma mapping and fills in the scatter gather entries of the
- cciss command, c. */
-
-static void cciss_scatter_gather(ctlr_info_t *h, CommandList_struct *c,
- struct scsi_cmnd *cmd)
-{
- unsigned int len;
- struct scatterlist *sg;
- __u64 addr64;
- int request_nsgs, i, chained, sg_index;
- struct cciss_scsi_adapter_data_t *sa = h->scsi_ctlr;
- SGDescriptor_struct *curr_sg;
-
- BUG_ON(scsi_sg_count(cmd) > h->maxsgentries);
-
- chained = 0;
- sg_index = 0;
- curr_sg = c->SG;
- request_nsgs = scsi_dma_map(cmd);
- if (request_nsgs) {
- scsi_for_each_sg(cmd, sg, request_nsgs, i) {
- if (sg_index + 1 == h->max_cmd_sgentries &&
- !chained && request_nsgs - i > 1) {
- chained = 1;
- sg_index = 0;
- curr_sg = sa->cmd_sg_list[c->cmdindex];
- }
- addr64 = (__u64) sg_dma_address(sg);
- len = sg_dma_len(sg);
- curr_sg[sg_index].Addr.lower =
- (__u32) (addr64 & 0x0FFFFFFFFULL);
- curr_sg[sg_index].Addr.upper =
- (__u32) ((addr64 >> 32) & 0x0FFFFFFFFULL);
- curr_sg[sg_index].Len = len;
- curr_sg[sg_index].Ext = 0;
- ++sg_index;
- }
- if (chained)
- cciss_map_sg_chain_block(h, c,
- sa->cmd_sg_list[c->cmdindex],
- (request_nsgs - (h->max_cmd_sgentries - 1)) *
- sizeof(SGDescriptor_struct));
- }
- /* track how many SG entries we are using */
- if (request_nsgs > h->maxSG)
- h->maxSG = request_nsgs;
- c->Header.SGTotal = (u16) request_nsgs + chained;
- if (request_nsgs > h->max_cmd_sgentries)
- c->Header.SGList = h->max_cmd_sgentries;
- else
- c->Header.SGList = c->Header.SGTotal;
- return;
-}
-
-
-static int
-cciss_scsi_queue_command_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
-{
- ctlr_info_t *h;
- int rc;
- unsigned char scsi3addr[8];
- CommandList_struct *c;
- unsigned long flags;
-
- // Get the ptr to our adapter structure (hba[i]) out of cmd->host.
- // We violate cmd->host privacy here. (Is there another way?)
- h = (ctlr_info_t *) cmd->device->host->hostdata[0];
-
- rc = lookup_scsi3addr(h, cmd->device->channel, cmd->device->id,
- cmd->device->lun, scsi3addr);
- if (rc != 0) {
- /* the scsi nexus does not match any that we presented... */
- /* pretend to mid layer that we got selection timeout */
- cmd->result = DID_NO_CONNECT << 16;
- done(cmd);
- /* we might want to think about registering controller itself
- as a processor device on the bus so sg binds to it. */
- return 0;
- }
-
- /* Ok, we have a reasonable scsi nexus, so send the cmd down, and
- see what the device thinks of it. */
-
- spin_lock_irqsave(&h->lock, flags);
- c = scsi_cmd_alloc(h);
- spin_unlock_irqrestore(&h->lock, flags);
- if (c == NULL) { /* trouble... */
- dev_warn(&h->pdev->dev, "scsi_cmd_alloc returned NULL!\n");
- /* FIXME: next 3 lines are -> BAD! <- */
- cmd->result = DID_NO_CONNECT << 16;
- done(cmd);
- return 0;
- }
-
- // Fill in the command list header
-
- cmd->scsi_done = done; // save this for use by completion code
-
- /* save c in case we have to abort it */
- cmd->host_scribble = (unsigned char *) c;
-
- c->cmd_type = CMD_SCSI;
- c->scsi_cmd = cmd;
- c->Header.ReplyQueue = 0; /* unused in simple mode */
- memcpy(&c->Header.LUN.LunAddrBytes[0], &scsi3addr[0], 8);
- c->Header.Tag.lower = c->busaddr; /* Use k. address of cmd as tag */
-
- // Fill in the request block...
-
- c->Request.Timeout = 0;
- memset(c->Request.CDB, 0, sizeof(c->Request.CDB));
- BUG_ON(cmd->cmd_len > sizeof(c->Request.CDB));
- c->Request.CDBLen = cmd->cmd_len;
- memcpy(c->Request.CDB, cmd->cmnd, cmd->cmd_len);
- c->Request.Type.Type = TYPE_CMD;
- c->Request.Type.Attribute = ATTR_SIMPLE;
- switch (cmd->sc_data_direction) {
- case DMA_TO_DEVICE:
- c->Request.Type.Direction = XFER_WRITE;
- break;
- case DMA_FROM_DEVICE:
- c->Request.Type.Direction = XFER_READ;
- break;
- case DMA_NONE:
- c->Request.Type.Direction = XFER_NONE;
- break;
- case DMA_BIDIRECTIONAL:
- // This can happen if a buggy application does a scsi passthru
- // and sets both inlen and outlen to non-zero. ( see
- // ../scsi/scsi_ioctl.c:scsi_ioctl_send_command() )
-
- c->Request.Type.Direction = XFER_RSVD;
- // This is technically wrong, and cciss controllers should
- // reject it with CMD_INVALID, which is the most correct
- // response, but non-fibre backends appear to let it
- // slide by, and give the same results as if this field
- // were set correctly. Either way is acceptable for
- // our purposes here.
-
- break;
-
- default:
- dev_warn(&h->pdev->dev, "unknown data direction: %d\n",
- cmd->sc_data_direction);
- BUG();
- break;
- }
- cciss_scatter_gather(h, c, cmd);
- enqueue_cmd_and_start_io(h, c);
- /* the cmd'll come back via intr handler in complete_scsi_command() */
- return 0;
-}
-
-static DEF_SCSI_QCMD(cciss_scsi_queue_command)
-
-static void cciss_unregister_scsi(ctlr_info_t *h)
-{
- struct cciss_scsi_adapter_data_t *sa;
- struct cciss_scsi_cmd_stack_t *stk;
- unsigned long flags;
-
- /* we are being forcibly unloaded, and may not refuse. */
-
- spin_lock_irqsave(&h->lock, flags);
- sa = h->scsi_ctlr;
- stk = &sa->cmd_stack;
-
- /* if we weren't ever actually registered, don't unregister */
- if (sa->registered) {
- spin_unlock_irqrestore(&h->lock, flags);
- scsi_remove_host(sa->scsi_host);
- scsi_host_put(sa->scsi_host);
- spin_lock_irqsave(&h->lock, flags);
- }
-
- /* set scsi_host to NULL so our detect routine will
- find us on register */
- sa->scsi_host = NULL;
- spin_unlock_irqrestore(&h->lock, flags);
- scsi_cmd_stack_free(h);
- kfree(sa);
-}
-
-static int cciss_engage_scsi(ctlr_info_t *h)
-{
- struct cciss_scsi_adapter_data_t *sa;
- struct cciss_scsi_cmd_stack_t *stk;
- unsigned long flags;
-
- spin_lock_irqsave(&h->lock, flags);
- sa = h->scsi_ctlr;
- stk = &sa->cmd_stack;
-
- if (sa->registered) {
- dev_info(&h->pdev->dev, "SCSI subsystem already engaged.\n");
- spin_unlock_irqrestore(&h->lock, flags);
- return -ENXIO;
- }
- sa->registered = 1;
- spin_unlock_irqrestore(&h->lock, flags);
- cciss_update_non_disk_devices(h, -1);
- cciss_scsi_detect(h);
- return 0;
-}
-
-static void
-cciss_seq_tape_report(struct seq_file *seq, ctlr_info_t *h)
-{
- unsigned long flags;
-
- CPQ_TAPE_LOCK(h, flags);
- seq_printf(seq,
- "Sequential access devices: %d\n\n",
- ccissscsi[h->ctlr].ndevices);
- CPQ_TAPE_UNLOCK(h, flags);
-}
-
-static int wait_for_device_to_become_ready(ctlr_info_t *h,
- unsigned char lunaddr[])
-{
- int rc;
- int count = 0;
- int waittime = HZ;
- CommandList_struct *c;
-
- c = cmd_alloc(h);
- if (!c) {
- dev_warn(&h->pdev->dev, "out of memory in "
- "wait_for_device_to_become_ready.\n");
- return IO_ERROR;
- }
-
- /* Send test unit ready until device ready, or give up. */
- while (count < 20) {
-
- /* Wait for a bit. do this first, because if we send
- * the TUR right away, the reset will just abort it.
- */
- schedule_timeout_uninterruptible(waittime);
- count++;
-
- /* Increase wait time with each try, up to a point. */
- if (waittime < (HZ * 30))
- waittime = waittime * 2;
-
- /* Send the Test Unit Ready */
- rc = fill_cmd(h, c, TEST_UNIT_READY, NULL, 0, 0,
- lunaddr, TYPE_CMD);
- if (rc == 0)
- rc = sendcmd_withirq_core(h, c, 0);
-
- (void) process_sendcmd_error(h, c);
-
- if (rc != 0)
- goto retry_tur;
-
- if (c->err_info->CommandStatus == CMD_SUCCESS)
- break;
-
- if (c->err_info->CommandStatus == CMD_TARGET_STATUS &&
- c->err_info->ScsiStatus == SAM_STAT_CHECK_CONDITION) {
- if (c->err_info->SenseInfo[2] == NO_SENSE)
- break;
- if (c->err_info->SenseInfo[2] == UNIT_ATTENTION) {
- unsigned char asc;
- asc = c->err_info->SenseInfo[12];
- check_for_unit_attention(h, c);
- if (asc == POWER_OR_RESET)
- break;
- }
- }
-retry_tur:
- dev_warn(&h->pdev->dev, "Waiting %d secs "
- "for device to become ready.\n",
- waittime / HZ);
- rc = 1; /* device not ready. */
- }
-
- if (rc)
- dev_warn(&h->pdev->dev, "giving up on device.\n");
- else
- dev_warn(&h->pdev->dev, "device is ready.\n");
-
- cmd_free(h, c);
- return rc;
-}
-
-/* Need at least one of these error handlers to keep ../scsi/hosts.c from
- * complaining. Doing a host- or bus-reset can't do anything good here.
- * Despite what it might say in scsi_error.c, there may well be commands
- * on the controller, as the cciss driver registers twice, once as a block
- * device for the logical drives, and once as a scsi device, for any tape
- * drives. So we know there are no commands out on the tape drives, but we
- * don't know there are no commands on the controller, and it is likely
- * that there probably are, as the cciss block device is most commonly used
- * as a boot device (embedded controller on HP/Compaq systems.)
-*/
-
-static int cciss_eh_device_reset_handler(struct scsi_cmnd *scsicmd)
-{
- int rc;
- CommandList_struct *cmd_in_trouble;
- unsigned char lunaddr[8];
- ctlr_info_t *h;
-
- /* find the controller to which the command to be aborted was sent */
- h = (ctlr_info_t *) scsicmd->device->host->hostdata[0];
- if (h == NULL) /* paranoia */
- return FAILED;
- dev_warn(&h->pdev->dev, "resetting tape drive or medium changer.\n");
- /* find the command that's giving us trouble */
- cmd_in_trouble = (CommandList_struct *) scsicmd->host_scribble;
- if (cmd_in_trouble == NULL) /* paranoia */
- return FAILED;
- memcpy(lunaddr, &cmd_in_trouble->Header.LUN.LunAddrBytes[0], 8);
- /* send a reset to the SCSI LUN which the command was sent to */
- rc = sendcmd_withirq(h, CCISS_RESET_MSG, NULL, 0, 0, lunaddr,
- TYPE_MSG);
- if (rc == 0 && wait_for_device_to_become_ready(h, lunaddr) == 0)
- return SUCCESS;
- dev_warn(&h->pdev->dev, "resetting device failed.\n");
- return FAILED;
-}
-
-static int cciss_eh_abort_handler(struct scsi_cmnd *scsicmd)
-{
- int rc;
- CommandList_struct *cmd_to_abort;
- unsigned char lunaddr[8];
- ctlr_info_t *h;
-
- /* find the controller to which the command to be aborted was sent */
- h = (ctlr_info_t *) scsicmd->device->host->hostdata[0];
- if (h == NULL) /* paranoia */
- return FAILED;
- dev_warn(&h->pdev->dev, "aborting tardy SCSI cmd\n");
-
- /* find the command to be aborted */
- cmd_to_abort = (CommandList_struct *) scsicmd->host_scribble;
- if (cmd_to_abort == NULL) /* paranoia */
- return FAILED;
- memcpy(lunaddr, &cmd_to_abort->Header.LUN.LunAddrBytes[0], 8);
- rc = sendcmd_withirq(h, CCISS_ABORT_MSG, &cmd_to_abort->Header.Tag,
- 0, 0, lunaddr, TYPE_MSG);
- if (rc == 0)
- return SUCCESS;
- return FAILED;
-
-}
-
-#else /* no CONFIG_CISS_SCSI_TAPE */
-
-/* If no tape support, then these become defined out of existence */
-
-#define cciss_scsi_setup(cntl_num)
-#define cciss_engage_scsi(h)
-
-#endif /* CONFIG_CISS_SCSI_TAPE */
diff --git a/drivers/block/cciss_scsi.h b/drivers/block/cciss_scsi.h
deleted file mode 100644
index e71d986727ca..000000000000
--- a/drivers/block/cciss_scsi.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * Disk Array driver for HP Smart Array controllers, SCSI Tape module.
- * (C) Copyright 2001, 2007 Hewlett-Packard Development Company, L.P.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 300, Boston, MA
- * 02111-1307, USA.
- *
- * Questions/Comments/Bugfixes to iss_storagedev@hp.com
- *
- */
-#ifdef CONFIG_CISS_SCSI_TAPE
-#ifndef _CCISS_SCSI_H_
-#define _CCISS_SCSI_H_
-
-#include <scsi/scsicam.h> /* possibly irrelevant, since we don't show disks */
-
- /* the scsi id of the adapter... */
-#define SELF_SCSI_ID 15
- /* 15 is somewhat arbitrary, since the scsi-2 bus
- that's presented by the driver to the OS is
- fabricated. The "real" scsi-3 bus the
- hardware presents is fabricated too.
- The actual, honest-to-goodness physical
- bus that the devices are attached to is not
- addressible natively, and may in fact turn
- out to be not scsi at all. */
-
-
-/*
-
-If the upper scsi layer tries to track how many commands we have
-outstanding, it will be operating under the misapprehension that it is
-the only one sending us requests. We also have the block interface,
-which is where most requests must surely come from, so the upper layer's
-notion of how many requests we have outstanding will be wrong most or
-all of the time.
-
-Note, the normal SCSI mid-layer error handling doesn't work well
-for this driver because 1) it takes the io_request_lock before
-calling error handlers and uses a local variable to store flags,
-so the io_request_lock cannot be released and interrupts enabled
-inside the error handlers, and, the error handlers cannot poll
-for command completion because they might get commands from the
-block half of the driver completing, and not know what to do
-with them. That's what we get for making a hybrid scsi/block
-driver, I suppose.
-
-*/
-
-struct cciss_scsi_dev_t {
- int devtype;
- int bus, target, lun; /* as presented to the OS */
- unsigned char scsi3addr[8]; /* as presented to the HW */
- unsigned char device_id[16]; /* from inquiry pg. 0x83 */
- unsigned char vendor[8]; /* bytes 8-15 of inquiry data */
- unsigned char model[16]; /* bytes 16-31 of inquiry data */
- unsigned char revision[4]; /* bytes 32-35 of inquiry data */
-};
-
-struct cciss_scsi_hba_t {
- char *name;
- int ndevices;
-#define CCISS_MAX_SCSI_DEVS_PER_HBA 16
- struct cciss_scsi_dev_t dev[CCISS_MAX_SCSI_DEVS_PER_HBA];
-};
-
-#endif /* _CCISS_SCSI_H_ */
-#endif /* CONFIG_CISS_SCSI_TAPE */
diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c
index 8d7bcfa49c12..5f0eaee8c8a7 100644
--- a/drivers/block/drbd/drbd_actlog.c
+++ b/drivers/block/drbd/drbd_actlog.c
@@ -151,7 +151,7 @@ static int _drbd_md_sync_page_io(struct drbd_device *device,
op_flags |= REQ_SYNC;
bio = bio_alloc_drbd(GFP_NOIO);
- bio->bi_bdev = bdev->md_bdev;
+ bio_set_dev(bio, bdev->md_bdev);
bio->bi_iter.bi_sector = sector;
err = -EIO;
if (bio_add_page(bio, device->md_io.page, size, 0) != size)
@@ -178,7 +178,7 @@ static int _drbd_md_sync_page_io(struct drbd_device *device,
else
submit_bio(bio);
wait_until_done_or_force_detached(device, bdev, &device->md_io.done);
- if (!bio->bi_error)
+ if (!bio->bi_status)
err = device->md_io.error;
out:
diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
index a804a4107fbc..bd97908c766f 100644
--- a/drivers/block/drbd/drbd_bitmap.c
+++ b/drivers/block/drbd/drbd_bitmap.c
@@ -959,16 +959,16 @@ static void drbd_bm_endio(struct bio *bio)
!bm_test_page_unchanged(b->bm_pages[idx]))
drbd_warn(device, "bitmap page idx %u changed during IO!\n", idx);
- if (bio->bi_error) {
+ if (bio->bi_status) {
/* ctx error will hold the completed-last non-zero error code,
* in case error codes differ. */
- ctx->error = bio->bi_error;
+ ctx->error = blk_status_to_errno(bio->bi_status);
bm_set_page_io_err(b->bm_pages[idx]);
/* Not identical to on disk version of it.
* Is BM_PAGE_IO_ERROR enough? */
if (__ratelimit(&drbd_ratelimit_state))
drbd_err(device, "IO ERROR %d on bitmap page idx %u\n",
- bio->bi_error, idx);
+ bio->bi_status, idx);
} else {
bm_clear_page_io_err(b->bm_pages[idx]);
dynamic_drbd_dbg(device, "bitmap page idx %u completed\n", idx);
@@ -1019,7 +1019,7 @@ static void bm_page_io_async(struct drbd_bm_aio_ctx *ctx, int page_nr) __must_ho
bm_store_page_idx(page, page_nr);
} else
page = b->bm_pages[page_nr];
- bio->bi_bdev = device->ldev->md_bdev;
+ bio_set_dev(bio, device->ldev->md_bdev);
bio->bi_iter.bi_sector = on_disk_sector;
/* bio_add_page of a single page to an empty bio will always succeed,
* according to api. Do we want to assert that? */
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index d5da45bb03a6..7e8589ce631c 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -63,19 +63,15 @@
# define __must_hold(x)
#endif
-/* module parameter, defined in drbd_main.c */
-extern unsigned int minor_count;
-extern bool disable_sendpage;
-extern bool allow_oos;
-void tl_abort_disk_io(struct drbd_device *device);
-
+/* shared module parameters, defined in drbd_main.c */
#ifdef CONFIG_DRBD_FAULT_INJECTION
-extern int enable_faults;
-extern int fault_rate;
-extern int fault_devs;
+extern int drbd_enable_faults;
+extern int drbd_fault_rate;
#endif
-extern char usermode_helper[];
+extern unsigned int drbd_minor_count;
+extern char drbd_usermode_helper[];
+extern int drbd_proc_details;
/* This is used to stop/restart our threads.
@@ -181,8 +177,8 @@ _drbd_insert_fault(struct drbd_device *device, unsigned int type);
static inline int
drbd_insert_fault(struct drbd_device *device, unsigned int type) {
#ifdef CONFIG_DRBD_FAULT_INJECTION
- return fault_rate &&
- (enable_faults & (1<<type)) &&
+ return drbd_fault_rate &&
+ (drbd_enable_faults & (1<<type)) &&
_drbd_insert_fault(device, type);
#else
return 0;
@@ -745,6 +741,8 @@ struct drbd_connection {
unsigned current_tle_writes; /* writes seen within this tl epoch */
unsigned long last_reconnect_jif;
+ /* empty member on older kernels without blk_start_plug() */
+ struct blk_plug receiver_plug;
struct drbd_thread receiver;
struct drbd_thread worker;
struct drbd_thread ack_receiver;
@@ -1131,7 +1129,8 @@ extern void conn_send_sr_reply(struct drbd_connection *connection, enum drbd_sta
extern int drbd_send_rs_deallocated(struct drbd_peer_device *, struct drbd_peer_request *);
extern void drbd_backing_dev_free(struct drbd_device *device, struct drbd_backing_dev *ldev);
extern void drbd_device_cleanup(struct drbd_device *device);
-void drbd_print_uuids(struct drbd_device *device, const char *text);
+extern void drbd_print_uuids(struct drbd_device *device, const char *text);
+extern void drbd_queue_unplug(struct drbd_device *device);
extern void conn_md_sync(struct drbd_connection *connection);
extern void drbd_md_write(struct drbd_device *device, void *buffer);
@@ -1441,6 +1440,9 @@ extern struct bio_set *drbd_md_io_bio_set;
/* to allocate from that set */
extern struct bio *bio_alloc_drbd(gfp_t gfp_mask);
+/* And a bio_set for cloning */
+extern struct bio_set *drbd_io_bio_set;
+
extern struct mutex resources_mutex;
extern int conn_lowest_minor(struct drbd_connection *connection);
@@ -1460,8 +1462,6 @@ extern struct drbd_resource *drbd_find_resource(const char *name);
extern void drbd_destroy_resource(struct kref *kref);
extern void conn_free_crypto(struct drbd_connection *connection);
-extern int proc_details;
-
/* drbd_req */
extern void do_submit(struct work_struct *ws);
extern void __drbd_make_request(struct drbd_device *, struct bio *, unsigned long);
@@ -1625,9 +1625,9 @@ static inline void drbd_generic_make_request(struct drbd_device *device,
int fault_type, struct bio *bio)
{
__release(local);
- if (!bio->bi_bdev) {
- drbd_err(device, "drbd_generic_make_request: bio->bi_bdev == NULL\n");
- bio->bi_error = -ENODEV;
+ if (!bio->bi_disk) {
+ drbd_err(device, "drbd_generic_make_request: bio->bi_disk == NULL\n");
+ bio->bi_status = BLK_STS_IOERR;
bio_endio(bio);
return;
}
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 84455c365f57..8cb3791898ae 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -77,41 +77,41 @@ MODULE_PARM_DESC(minor_count, "Approximate number of drbd devices ("
MODULE_ALIAS_BLOCKDEV_MAJOR(DRBD_MAJOR);
#include <linux/moduleparam.h>
-/* allow_open_on_secondary */
-MODULE_PARM_DESC(allow_oos, "DONT USE!");
/* thanks to these macros, if compiled into the kernel (not-module),
- * this becomes the boot parameter drbd.minor_count */
-module_param(minor_count, uint, 0444);
-module_param(disable_sendpage, bool, 0644);
-module_param(allow_oos, bool, 0);
-module_param(proc_details, int, 0644);
+ * these become boot parameters (e.g., drbd.minor_count) */
#ifdef CONFIG_DRBD_FAULT_INJECTION
-int enable_faults;
-int fault_rate;
-static int fault_count;
-int fault_devs;
+int drbd_enable_faults;
+int drbd_fault_rate;
+static int drbd_fault_count;
+static int drbd_fault_devs;
/* bitmap of enabled faults */
-module_param(enable_faults, int, 0664);
+module_param_named(enable_faults, drbd_enable_faults, int, 0664);
/* fault rate % value - applies to all enabled faults */
-module_param(fault_rate, int, 0664);
+module_param_named(fault_rate, drbd_fault_rate, int, 0664);
/* count of faults inserted */
-module_param(fault_count, int, 0664);
+module_param_named(fault_count, drbd_fault_count, int, 0664);
/* bitmap of devices to insert faults on */
-module_param(fault_devs, int, 0644);
+module_param_named(fault_devs, drbd_fault_devs, int, 0644);
#endif
-/* module parameter, defined */
-unsigned int minor_count = DRBD_MINOR_COUNT_DEF;
-bool disable_sendpage;
-bool allow_oos;
-int proc_details; /* Detail level in proc drbd*/
-
+/* module parameters we can keep static */
+static bool drbd_allow_oos; /* allow_open_on_secondary */
+static bool drbd_disable_sendpage;
+MODULE_PARM_DESC(allow_oos, "DONT USE!");
+module_param_named(allow_oos, drbd_allow_oos, bool, 0);
+module_param_named(disable_sendpage, drbd_disable_sendpage, bool, 0644);
+
+/* module parameters we share */
+int drbd_proc_details; /* Detail level in proc drbd*/
+module_param_named(proc_details, drbd_proc_details, int, 0644);
+/* module parameters shared with defaults */
+unsigned int drbd_minor_count = DRBD_MINOR_COUNT_DEF;
/* Module parameter for setting the user mode helper program
* to run. Default is /sbin/drbdadm */
-char usermode_helper[80] = "/sbin/drbdadm";
-
-module_param_string(usermode_helper, usermode_helper, sizeof(usermode_helper), 0644);
+char drbd_usermode_helper[80] = "/sbin/drbdadm";
+module_param_named(minor_count, drbd_minor_count, uint, 0444);
+module_param_string(usermode_helper, drbd_usermode_helper, sizeof(drbd_usermode_helper), 0644);
/* in 2.6.x, our device mapping and config info contains our virtual gendisks
* as member "struct gendisk *vdisk;"
@@ -128,6 +128,7 @@ mempool_t *drbd_request_mempool;
mempool_t *drbd_ee_mempool;
mempool_t *drbd_md_io_page_pool;
struct bio_set *drbd_md_io_bio_set;
+struct bio_set *drbd_io_bio_set;
/* I do not use a standard mempool, because:
1) I want to hand out the pre-allocated objects first.
@@ -922,7 +923,9 @@ void drbd_gen_and_send_sync_uuid(struct drbd_peer_device *peer_device)
}
/* communicated if (agreed_features & DRBD_FF_WSAME) */
-void assign_p_sizes_qlim(struct drbd_device *device, struct p_sizes *p, struct request_queue *q)
+static void
+assign_p_sizes_qlim(struct drbd_device *device, struct p_sizes *p,
+ struct request_queue *q)
{
if (q) {
p->qlim->physical_block_size = cpu_to_be32(queue_physical_block_size(q));
@@ -1550,7 +1553,6 @@ static int _drbd_send_page(struct drbd_peer_device *peer_device, struct page *pa
int offset, size_t size, unsigned msg_flags)
{
struct socket *socket = peer_device->connection->data.socket;
- mm_segment_t oldfs = get_fs();
int len = size;
int err = -EIO;
@@ -1560,12 +1562,11 @@ static int _drbd_send_page(struct drbd_peer_device *peer_device, struct page *pa
* put_page(); and would cause either a VM_BUG directly, or
* __page_cache_release a page that would actually still be referenced
* by someone, leading to some obscure delayed Oops somewhere else. */
- if (disable_sendpage || (page_count(page) < 1) || PageSlab(page))
+ if (drbd_disable_sendpage || (page_count(page) < 1) || PageSlab(page))
return _drbd_no_send_page(peer_device, page, offset, size, msg_flags);
msg_flags |= MSG_NOSIGNAL;
drbd_update_congested(peer_device->connection);
- set_fs(KERNEL_DS);
do {
int sent;
@@ -1585,7 +1586,6 @@ static int _drbd_send_page(struct drbd_peer_device *peer_device, struct page *pa
len -= sent;
offset += sent;
} while (len > 0 /* THINK && device->cstate >= C_CONNECTED*/);
- set_fs(oldfs);
clear_bit(NET_CONGESTED, &peer_device->connection->flags);
if (len == 0) {
@@ -1934,7 +1934,7 @@ static int drbd_open(struct block_device *bdev, fmode_t mode)
if (device->state.role != R_PRIMARY) {
if (mode & FMODE_WRITE)
rv = -EROFS;
- else if (!allow_oos)
+ else if (!drbd_allow_oos)
rv = -EMEDIUMTYPE;
}
@@ -1954,6 +1954,19 @@ static void drbd_release(struct gendisk *gd, fmode_t mode)
mutex_unlock(&drbd_main_mutex);
}
+/* need to hold resource->req_lock */
+void drbd_queue_unplug(struct drbd_device *device)
+{
+ if (device->state.pdsk >= D_INCONSISTENT && device->state.conn >= C_CONNECTED) {
+ D_ASSERT(device, device->state.role == R_PRIMARY);
+ if (test_and_clear_bit(UNPLUG_REMOTE, &device->flags)) {
+ drbd_queue_work_if_unqueued(
+ &first_peer_device(device)->connection->sender_work,
+ &device->unplug_work);
+ }
+ }
+}
+
static void drbd_set_defaults(struct drbd_device *device)
{
/* Beware! The actual layout differs
@@ -2010,18 +2023,14 @@ void drbd_init_set_defaults(struct drbd_device *device)
device->unplug_work.cb = w_send_write_hint;
device->bm_io_work.w.cb = w_bitmap_io;
- init_timer(&device->resync_timer);
- init_timer(&device->md_sync_timer);
- init_timer(&device->start_resync_timer);
- init_timer(&device->request_timer);
- device->resync_timer.function = resync_timer_fn;
- device->resync_timer.data = (unsigned long) device;
- device->md_sync_timer.function = md_sync_timer_fn;
- device->md_sync_timer.data = (unsigned long) device;
- device->start_resync_timer.function = start_resync_timer_fn;
- device->start_resync_timer.data = (unsigned long) device;
- device->request_timer.function = request_timer_fn;
- device->request_timer.data = (unsigned long) device;
+ setup_timer(&device->resync_timer, resync_timer_fn,
+ (unsigned long)device);
+ setup_timer(&device->md_sync_timer, md_sync_timer_fn,
+ (unsigned long)device);
+ setup_timer(&device->start_resync_timer, start_resync_timer_fn,
+ (unsigned long)device);
+ setup_timer(&device->request_timer, request_timer_fn,
+ (unsigned long)device);
init_waitqueue_head(&device->misc_wait);
init_waitqueue_head(&device->state_wait);
@@ -2098,6 +2107,8 @@ static void drbd_destroy_mempools(void)
/* D_ASSERT(device, atomic_read(&drbd_pp_vacant)==0); */
+ if (drbd_io_bio_set)
+ bioset_free(drbd_io_bio_set);
if (drbd_md_io_bio_set)
bioset_free(drbd_md_io_bio_set);
if (drbd_md_io_page_pool)
@@ -2115,6 +2126,7 @@ static void drbd_destroy_mempools(void)
if (drbd_al_ext_cache)
kmem_cache_destroy(drbd_al_ext_cache);
+ drbd_io_bio_set = NULL;
drbd_md_io_bio_set = NULL;
drbd_md_io_page_pool = NULL;
drbd_ee_mempool = NULL;
@@ -2130,7 +2142,7 @@ static void drbd_destroy_mempools(void)
static int drbd_create_mempools(void)
{
struct page *page;
- const int number = (DRBD_MAX_BIO_SIZE/PAGE_SIZE) * minor_count;
+ const int number = (DRBD_MAX_BIO_SIZE/PAGE_SIZE) * drbd_minor_count;
int i;
/* prepare our caches and mempools */
@@ -2142,6 +2154,7 @@ static int drbd_create_mempools(void)
drbd_pp_pool = NULL;
drbd_md_io_page_pool = NULL;
drbd_md_io_bio_set = NULL;
+ drbd_io_bio_set = NULL;
/* caches */
drbd_request_cache = kmem_cache_create(
@@ -2165,7 +2178,12 @@ static int drbd_create_mempools(void)
goto Enomem;
/* mempools */
- drbd_md_io_bio_set = bioset_create(DRBD_MIN_POOL_PAGES, 0);
+ drbd_io_bio_set = bioset_create(BIO_POOL_SIZE, 0, 0);
+ if (drbd_io_bio_set == NULL)
+ goto Enomem;
+
+ drbd_md_io_bio_set = bioset_create(DRBD_MIN_POOL_PAGES, 0,
+ BIOSET_NEED_BVECS);
if (drbd_md_io_bio_set == NULL)
goto Enomem;
@@ -2401,7 +2419,6 @@ static void drbd_cleanup(void)
destroy_workqueue(retry.wq);
drbd_genl_unregister();
- drbd_debugfs_cleanup();
idr_for_each_entry(&drbd_devices, device, i)
drbd_delete_device(device);
@@ -2412,6 +2429,8 @@ static void drbd_cleanup(void)
drbd_free_resource(resource);
}
+ drbd_debugfs_cleanup();
+
drbd_destroy_mempools();
unregister_blkdev(DRBD_MAJOR, "drbd");
@@ -2839,7 +2858,6 @@ enum drbd_ret_code drbd_create_device(struct drbd_config_context *adm_ctx, unsig
/* Setting the max_hw_sectors to an odd value of 8kibyte here
This triggers a max_bio_size message upon first attach or connect */
blk_queue_max_hw_sectors(q, DRBD_MAX_BIO_SIZE_SAFE >> 8);
- blk_queue_bounce_limit(q, BLK_BOUNCE_ANY);
q->queue_lock = &resource->req_lock;
device->md_io.page = alloc_page(GFP_KERNEL);
@@ -2965,12 +2983,12 @@ static int __init drbd_init(void)
{
int err;
- if (minor_count < DRBD_MINOR_COUNT_MIN || minor_count > DRBD_MINOR_COUNT_MAX) {
- pr_err("invalid minor_count (%d)\n", minor_count);
+ if (drbd_minor_count < DRBD_MINOR_COUNT_MIN || drbd_minor_count > DRBD_MINOR_COUNT_MAX) {
+ pr_err("invalid minor_count (%d)\n", drbd_minor_count);
#ifdef MODULE
return -EINVAL;
#else
- minor_count = DRBD_MINOR_COUNT_DEF;
+ drbd_minor_count = DRBD_MINOR_COUNT_DEF;
#endif
}
@@ -3893,12 +3911,12 @@ _drbd_insert_fault(struct drbd_device *device, unsigned int type)
static struct fault_random_state rrs = {0, 0};
unsigned int ret = (
- (fault_devs == 0 ||
- ((1 << device_to_minor(device)) & fault_devs) != 0) &&
- (((_drbd_fault_random(&rrs) % 100) + 1) <= fault_rate));
+ (drbd_fault_devs == 0 ||
+ ((1 << device_to_minor(device)) & drbd_fault_devs) != 0) &&
+ (((_drbd_fault_random(&rrs) % 100) + 1) <= drbd_fault_rate));
if (ret) {
- fault_count++;
+ drbd_fault_count++;
if (__ratelimit(&drbd_ratelimit_state))
drbd_warn(device, "***Simulating %s failure\n",
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 02255a0d68b9..a12f77e6891e 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -344,7 +344,7 @@ int drbd_khelper(struct drbd_device *device, char *cmd)
(char[60]) { }, /* address */
NULL };
char mb[14];
- char *argv[] = {usermode_helper, cmd, mb, NULL };
+ char *argv[] = {drbd_usermode_helper, cmd, mb, NULL };
struct drbd_connection *connection = first_peer_device(device)->connection;
struct sib_info sib;
int ret;
@@ -359,19 +359,19 @@ int drbd_khelper(struct drbd_device *device, char *cmd)
* write out any unsynced meta data changes now */
drbd_md_sync(device);
- drbd_info(device, "helper command: %s %s %s\n", usermode_helper, cmd, mb);
+ drbd_info(device, "helper command: %s %s %s\n", drbd_usermode_helper, cmd, mb);
sib.sib_reason = SIB_HELPER_PRE;
sib.helper_name = cmd;
drbd_bcast_event(device, &sib);
notify_helper(NOTIFY_CALL, device, connection, cmd, 0);
- ret = call_usermodehelper(usermode_helper, argv, envp, UMH_WAIT_PROC);
+ ret = call_usermodehelper(drbd_usermode_helper, argv, envp, UMH_WAIT_PROC);
if (ret)
drbd_warn(device, "helper command: %s %s %s exit code %u (0x%x)\n",
- usermode_helper, cmd, mb,
+ drbd_usermode_helper, cmd, mb,
(ret >> 8) & 0xff, ret);
else
drbd_info(device, "helper command: %s %s %s exit code %u (0x%x)\n",
- usermode_helper, cmd, mb,
+ drbd_usermode_helper, cmd, mb,
(ret >> 8) & 0xff, ret);
sib.sib_reason = SIB_HELPER_POST;
sib.helper_exit_code = ret;
@@ -396,24 +396,24 @@ enum drbd_peer_state conn_khelper(struct drbd_connection *connection, char *cmd)
(char[60]) { }, /* address */
NULL };
char *resource_name = connection->resource->name;
- char *argv[] = {usermode_helper, cmd, resource_name, NULL };
+ char *argv[] = {drbd_usermode_helper, cmd, resource_name, NULL };
int ret;
setup_khelper_env(connection, envp);
conn_md_sync(connection);
- drbd_info(connection, "helper command: %s %s %s\n", usermode_helper, cmd, resource_name);
+ drbd_info(connection, "helper command: %s %s %s\n", drbd_usermode_helper, cmd, resource_name);
/* TODO: conn_bcast_event() ?? */
notify_helper(NOTIFY_CALL, NULL, connection, cmd, 0);
- ret = call_usermodehelper(usermode_helper, argv, envp, UMH_WAIT_PROC);
+ ret = call_usermodehelper(drbd_usermode_helper, argv, envp, UMH_WAIT_PROC);
if (ret)
drbd_warn(connection, "helper command: %s %s %s exit code %u (0x%x)\n",
- usermode_helper, cmd, resource_name,
+ drbd_usermode_helper, cmd, resource_name,
(ret >> 8) & 0xff, ret);
else
drbd_info(connection, "helper command: %s %s %s exit code %u (0x%x)\n",
- usermode_helper, cmd, resource_name,
+ drbd_usermode_helper, cmd, resource_name,
(ret >> 8) & 0xff, ret);
/* TODO: conn_bcast_event() ?? */
notify_helper(NOTIFY_RESPONSE, NULL, connection, cmd, ret);
@@ -1236,12 +1236,18 @@ static void fixup_discard_if_not_supported(struct request_queue *q)
static void decide_on_write_same_support(struct drbd_device *device,
struct request_queue *q,
- struct request_queue *b, struct o_qlim *o)
+ struct request_queue *b, struct o_qlim *o,
+ bool disable_write_same)
{
struct drbd_peer_device *peer_device = first_peer_device(device);
struct drbd_connection *connection = peer_device->connection;
bool can_do = b ? b->limits.max_write_same_sectors : true;
+ if (can_do && disable_write_same) {
+ can_do = false;
+ drbd_info(peer_device, "WRITE_SAME disabled by config\n");
+ }
+
if (can_do && connection->cstate >= C_CONNECTED && !(connection->agreed_features & DRBD_FF_WSAME)) {
can_do = false;
drbd_info(peer_device, "peer does not support WRITE_SAME\n");
@@ -1302,6 +1308,7 @@ static void drbd_setup_queue_param(struct drbd_device *device, struct drbd_backi
struct request_queue *b = NULL;
struct disk_conf *dc;
bool discard_zeroes_if_aligned = true;
+ bool disable_write_same = false;
if (bdev) {
b = bdev->backing_bdev->bd_disk->queue;
@@ -1311,6 +1318,7 @@ static void drbd_setup_queue_param(struct drbd_device *device, struct drbd_backi
dc = rcu_dereference(device->ldev->disk_conf);
max_segments = dc->max_bio_bvecs;
discard_zeroes_if_aligned = dc->discard_zeroes_if_aligned;
+ disable_write_same = dc->disable_write_same;
rcu_read_unlock();
blk_set_stacking_limits(&q->limits);
@@ -1321,7 +1329,7 @@ static void drbd_setup_queue_param(struct drbd_device *device, struct drbd_backi
blk_queue_max_segments(q, max_segments ? max_segments : BLK_MAX_SEGMENTS);
blk_queue_segment_boundary(q, PAGE_SIZE-1);
decide_on_discard_support(device, q, b, discard_zeroes_if_aligned);
- decide_on_write_same_support(device, q, b, o);
+ decide_on_write_same_support(device, q, b, o, disable_write_same);
if (b) {
blk_queue_stack_limits(q, b);
@@ -1612,7 +1620,8 @@ int drbd_adm_disk_opts(struct sk_buff *skb, struct genl_info *info)
if (write_ordering_changed(old_disk_conf, new_disk_conf))
drbd_bump_write_ordering(device->resource, NULL, WO_BDEV_FLUSH);
- if (old_disk_conf->discard_zeroes_if_aligned != new_disk_conf->discard_zeroes_if_aligned)
+ if (old_disk_conf->discard_zeroes_if_aligned != new_disk_conf->discard_zeroes_if_aligned
+ || old_disk_conf->disable_write_same != new_disk_conf->disable_write_same)
drbd_reconsider_queue_parameters(device, device->ldev, NULL);
drbd_md_sync(device);
@@ -2140,34 +2149,13 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
static int adm_detach(struct drbd_device *device, int force)
{
- enum drbd_state_rv retcode;
- void *buffer;
- int ret;
-
if (force) {
set_bit(FORCE_DETACH, &device->flags);
drbd_force_state(device, NS(disk, D_FAILED));
- retcode = SS_SUCCESS;
- goto out;
+ return SS_SUCCESS;
}
- drbd_suspend_io(device); /* so no-one is stuck in drbd_al_begin_io */
- buffer = drbd_md_get_buffer(device, __func__); /* make sure there is no in-flight meta-data IO */
- if (buffer) {
- retcode = drbd_request_state(device, NS(disk, D_FAILED));
- drbd_md_put_buffer(device);
- } else /* already <= D_FAILED */
- retcode = SS_NOTHING_TO_DO;
- /* D_FAILED will transition to DISKLESS. */
- drbd_resume_io(device);
- ret = wait_event_interruptible(device->misc_wait,
- device->state.disk != D_FAILED);
- if ((int)retcode == (int)SS_IS_DISKLESS)
- retcode = SS_NOTHING_TO_DO;
- if (ret)
- retcode = ERR_INTR;
-out:
- return retcode;
+ return drbd_request_detach_interruptible(device);
}
/* Detaching the disk is a process in multiple stages. First we need to lock
@@ -2294,7 +2282,7 @@ _check_net_options(struct drbd_connection *connection, struct net_conf *old_net_
static enum drbd_ret_code
check_net_options(struct drbd_connection *connection, struct net_conf *new_net_conf)
{
- static enum drbd_ret_code rv;
+ enum drbd_ret_code rv;
struct drbd_peer_device *peer_device;
int i;
diff --git a/drivers/block/drbd/drbd_proc.c b/drivers/block/drbd/drbd_proc.c
index 8378142f7a55..582caeb0de86 100644
--- a/drivers/block/drbd/drbd_proc.c
+++ b/drivers/block/drbd/drbd_proc.c
@@ -127,7 +127,7 @@ static void drbd_syncer_progress(struct drbd_device *device, struct seq_file *se
seq_putc(seq, '=');
seq_putc(seq, '>');
for (i = 0; i < y; i++)
- seq_printf(seq, ".");
+ seq_putc(seq, '.');
seq_puts(seq, "] ");
if (state.conn == C_VERIFY_S || state.conn == C_VERIFY_T)
@@ -179,7 +179,7 @@ static void drbd_syncer_progress(struct drbd_device *device, struct seq_file *se
seq_printf_with_thousands_grouping(seq, dbdt);
seq_puts(seq, " (");
/* ------------------------- ~3s average ------------------------ */
- if (proc_details >= 1) {
+ if (drbd_proc_details >= 1) {
/* this is what drbd_rs_should_slow_down() uses */
i = (device->rs_last_mark + DRBD_SYNC_MARKS-1) % DRBD_SYNC_MARKS;
dt = (jiffies - device->rs_mark_time[i]) / HZ;
@@ -209,7 +209,7 @@ static void drbd_syncer_progress(struct drbd_device *device, struct seq_file *se
}
seq_printf(seq, " K/sec%s\n", stalled ? " (stalled)" : "");
- if (proc_details >= 1) {
+ if (drbd_proc_details >= 1) {
/* 64 bit:
* we convert to sectors in the display below. */
unsigned long bm_bits = drbd_bm_bits(device);
@@ -332,13 +332,13 @@ static int drbd_seq_show(struct seq_file *seq, void *v)
state.conn == C_VERIFY_T)
drbd_syncer_progress(device, seq, state);
- if (proc_details >= 1 && get_ldev_if_state(device, D_FAILED)) {
+ if (drbd_proc_details >= 1 && get_ldev_if_state(device, D_FAILED)) {
lc_seq_printf_stats(seq, device->resync);
lc_seq_printf_stats(seq, device->act_log);
put_ldev(device);
}
- if (proc_details >= 2)
+ if (drbd_proc_details >= 2)
seq_printf(seq, "\tblocked on activity log: %d\n", atomic_read(&device->ap_actlog_cnt));
}
rcu_read_unlock();
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 1b0a2be24f39..796eaf347dc0 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -332,7 +332,7 @@ static void drbd_free_pages(struct drbd_device *device, struct page *page, int i
if (page == NULL)
return;
- if (drbd_pp_vacant > (DRBD_MAX_BIO_SIZE/PAGE_SIZE) * minor_count)
+ if (drbd_pp_vacant > (DRBD_MAX_BIO_SIZE/PAGE_SIZE) * drbd_minor_count)
i = page_chain_free(page);
else {
struct page *tmp;
@@ -1100,7 +1100,10 @@ randomize:
idr_for_each_entry(&connection->peer_devices, peer_device, vnr)
mutex_lock(peer_device->device->state_mutex);
+ /* avoid a race with conn_request_state( C_DISCONNECTING ) */
+ spin_lock_irq(&connection->resource->req_lock);
set_bit(STATE_SENT, &connection->flags);
+ spin_unlock_irq(&connection->resource->req_lock);
idr_for_each_entry(&connection->peer_devices, peer_device, vnr)
mutex_unlock(peer_device->device->state_mutex);
@@ -1194,6 +1197,14 @@ static int decode_header(struct drbd_connection *connection, void *header, struc
return 0;
}
+static void drbd_unplug_all_devices(struct drbd_connection *connection)
+{
+ if (current->plug == &connection->receiver_plug) {
+ blk_finish_plug(&connection->receiver_plug);
+ blk_start_plug(&connection->receiver_plug);
+ } /* else: maybe just schedule() ?? */
+}
+
static int drbd_recv_header(struct drbd_connection *connection, struct packet_info *pi)
{
void *buffer = connection->data.rbuf;
@@ -1209,6 +1220,36 @@ static int drbd_recv_header(struct drbd_connection *connection, struct packet_in
return err;
}
+static int drbd_recv_header_maybe_unplug(struct drbd_connection *connection, struct packet_info *pi)
+{
+ void *buffer = connection->data.rbuf;
+ unsigned int size = drbd_header_size(connection);
+ int err;
+
+ err = drbd_recv_short(connection->data.socket, buffer, size, MSG_NOSIGNAL|MSG_DONTWAIT);
+ if (err != size) {
+ /* If we have nothing in the receive buffer now, to reduce
+ * application latency, try to drain the backend queues as
+ * quickly as possible, and let remote TCP know what we have
+ * received so far. */
+ if (err == -EAGAIN) {
+ drbd_tcp_quickack(connection->data.socket);
+ drbd_unplug_all_devices(connection);
+ }
+ if (err > 0) {
+ buffer += err;
+ size -= err;
+ }
+ err = drbd_recv_all_warn(connection, buffer, size);
+ if (err)
+ return err;
+ }
+
+ err = decode_header(connection, connection->data.rbuf, pi);
+ connection->last_received = jiffies;
+
+ return err;
+}
/* This is blkdev_issue_flush, but asynchronous.
* We want to submit to all component volumes in parallel,
* then wait for all completions.
@@ -1223,15 +1264,15 @@ struct one_flush_context {
struct issue_flush_context *ctx;
};
-void one_flush_endio(struct bio *bio)
+static void one_flush_endio(struct bio *bio)
{
struct one_flush_context *octx = bio->bi_private;
struct drbd_device *device = octx->device;
struct issue_flush_context *ctx = octx->ctx;
- if (bio->bi_error) {
- ctx->error = bio->bi_error;
- drbd_info(device, "local disk FLUSH FAILED with status %d\n", bio->bi_error);
+ if (bio->bi_status) {
+ ctx->error = blk_status_to_errno(bio->bi_status);
+ drbd_info(device, "local disk FLUSH FAILED with status %d\n", bio->bi_status);
}
kfree(octx);
bio_put(bio);
@@ -1265,7 +1306,7 @@ static void submit_one_flush(struct drbd_device *device, struct issue_flush_cont
octx->device = device;
octx->ctx = ctx;
- bio->bi_bdev = device->ldev->backing_bdev;
+ bio_set_dev(bio, device->ldev->backing_bdev);
bio->bi_private = octx;
bio->bi_end_io = one_flush_endio;
bio->bi_opf = REQ_OP_FLUSH | REQ_PREFLUSH;
@@ -1548,7 +1589,7 @@ next_bio:
}
/* > peer_req->i.sector, unless this is the first bio */
bio->bi_iter.bi_sector = sector;
- bio->bi_bdev = device->ldev->backing_bdev;
+ bio_set_dev(bio, device->ldev->backing_bdev);
bio_set_op_attrs(bio, op, op_flags);
bio->bi_private = peer_req;
bio->bi_end_io = drbd_peer_request_endio;
@@ -4085,7 +4126,7 @@ static int receive_uuids(struct drbd_connection *connection, struct packet_info
return config_unknown_volume(connection, pi);
device = peer_device->device;
- p_uuid = kmalloc(sizeof(u64)*UI_EXTENDED_SIZE, GFP_NOIO);
+ p_uuid = kmalloc_array(UI_EXTENDED_SIZE, sizeof(*p_uuid), GFP_NOIO);
if (!p_uuid) {
drbd_err(device, "kmalloc of p_uuid failed\n");
return false;
@@ -4882,8 +4923,8 @@ static void drbdd(struct drbd_connection *connection)
struct data_cmd const *cmd;
drbd_thread_current_set_cpu(&connection->receiver);
- update_receiver_timing_details(connection, drbd_recv_header);
- if (drbd_recv_header(connection, &pi))
+ update_receiver_timing_details(connection, drbd_recv_header_maybe_unplug);
+ if (drbd_recv_header_maybe_unplug(connection, &pi))
goto err_out;
cmd = &drbd_cmd_handler[pi.cmd];
@@ -5375,8 +5416,11 @@ int drbd_receiver(struct drbd_thread *thi)
}
} while (h == 0);
- if (h > 0)
+ if (h > 0) {
+ blk_start_plug(&connection->receiver_plug);
drbdd(connection);
+ blk_finish_plug(&connection->receiver_plug);
+ }
conn_disconnect(connection);
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 656624314f0d..de8566e55334 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -36,14 +36,18 @@ static bool drbd_may_do_local_read(struct drbd_device *device, sector_t sector,
/* Update disk stats at start of I/O request */
static void _drbd_start_io_acct(struct drbd_device *device, struct drbd_request *req)
{
- generic_start_io_acct(bio_data_dir(req->master_bio), req->i.size >> 9,
- &device->vdisk->part0);
+ struct request_queue *q = device->rq_queue;
+
+ generic_start_io_acct(q, bio_data_dir(req->master_bio),
+ req->i.size >> 9, &device->vdisk->part0);
}
/* Update disk stats when completing request upwards */
static void _drbd_end_io_acct(struct drbd_device *device, struct drbd_request *req)
{
- generic_end_io_acct(bio_data_dir(req->master_bio),
+ struct request_queue *q = device->rq_queue;
+
+ generic_end_io_acct(q, bio_data_dir(req->master_bio),
&device->vdisk->part0, req->start_jif);
}
@@ -203,7 +207,7 @@ void start_new_tl_epoch(struct drbd_connection *connection)
void complete_master_bio(struct drbd_device *device,
struct bio_and_error *m)
{
- m->bio->bi_error = m->error;
+ m->bio->bi_status = errno_to_blk_status(m->error);
bio_endio(m->bio);
dec_ap_bio(device);
}
@@ -1157,7 +1161,7 @@ static void drbd_process_discard_req(struct drbd_request *req)
if (blkdev_issue_zeroout(bdev, req->i.sector, req->i.size >> 9,
GFP_NOIO, 0))
- req->private_bio->bi_error = -EIO;
+ req->private_bio->bi_status = BLK_STS_IOERR;
bio_endio(req->private_bio);
}
@@ -1175,7 +1179,7 @@ drbd_submit_req_private_bio(struct drbd_request *req)
else
type = DRBD_FAULT_DT_RD;
- bio->bi_bdev = device->ldev->backing_bdev;
+ bio_set_dev(bio, device->ldev->backing_bdev);
/* State may have changed since we grabbed our reference on the
* ->ldev member. Double check, and short-circuit to endio.
@@ -1225,7 +1229,7 @@ drbd_request_prepare(struct drbd_device *device, struct bio *bio, unsigned long
/* only pass the error to the upper layers.
* if user cannot handle io errors, that's not our business. */
drbd_err(device, "could not kmalloc() req\n");
- bio->bi_error = -ENOMEM;
+ bio->bi_status = BLK_STS_RESOURCE;
bio_endio(bio);
return ERR_PTR(-ENOMEM);
}
@@ -1275,6 +1279,57 @@ static bool may_do_writes(struct drbd_device *device)
return s.disk == D_UP_TO_DATE || s.pdsk == D_UP_TO_DATE;
}
+struct drbd_plug_cb {
+ struct blk_plug_cb cb;
+ struct drbd_request *most_recent_req;
+ /* do we need more? */
+};
+
+static void drbd_unplug(struct blk_plug_cb *cb, bool from_schedule)
+{
+ struct drbd_plug_cb *plug = container_of(cb, struct drbd_plug_cb, cb);
+ struct drbd_resource *resource = plug->cb.data;
+ struct drbd_request *req = plug->most_recent_req;
+
+ kfree(cb);
+ if (!req)
+ return;
+
+ spin_lock_irq(&resource->req_lock);
+ /* In case the sender did not process it yet, raise the flag to
+ * have it followed with P_UNPLUG_REMOTE just after. */
+ req->rq_state |= RQ_UNPLUG;
+ /* but also queue a generic unplug */
+ drbd_queue_unplug(req->device);
+ kref_put(&req->kref, drbd_req_destroy);
+ spin_unlock_irq(&resource->req_lock);
+}
+
+static struct drbd_plug_cb* drbd_check_plugged(struct drbd_resource *resource)
+{
+ /* A lot of text to say
+ * return (struct drbd_plug_cb*)blk_check_plugged(); */
+ struct drbd_plug_cb *plug;
+ struct blk_plug_cb *cb = blk_check_plugged(drbd_unplug, resource, sizeof(*plug));
+
+ if (cb)
+ plug = container_of(cb, struct drbd_plug_cb, cb);
+ else
+ plug = NULL;
+ return plug;
+}
+
+static void drbd_update_plug(struct drbd_plug_cb *plug, struct drbd_request *req)
+{
+ struct drbd_request *tmp = plug->most_recent_req;
+ /* Will be sent to some peer.
+ * Remember to tag it with UNPLUG_REMOTE on unplug */
+ kref_get(&req->kref);
+ plug->most_recent_req = req;
+ if (tmp)
+ kref_put(&tmp->kref, drbd_req_destroy);
+}
+
static void drbd_send_and_submit(struct drbd_device *device, struct drbd_request *req)
{
struct drbd_resource *resource = device->resource;
@@ -1347,6 +1402,12 @@ static void drbd_send_and_submit(struct drbd_device *device, struct drbd_request
no_remote = true;
}
+ if (no_remote == false) {
+ struct drbd_plug_cb *plug = drbd_check_plugged(resource);
+ if (plug)
+ drbd_update_plug(plug, req);
+ }
+
/* If it took the fast path in drbd_request_prepare, add it here.
* The slow path has added it already. */
if (list_empty(&req->req_pending_master_completion))
@@ -1395,7 +1456,10 @@ void __drbd_make_request(struct drbd_device *device, struct bio *bio, unsigned l
static void submit_fast_path(struct drbd_device *device, struct list_head *incoming)
{
+ struct blk_plug plug;
struct drbd_request *req, *tmp;
+
+ blk_start_plug(&plug);
list_for_each_entry_safe(req, tmp, incoming, tl_requests) {
const int rw = bio_data_dir(req->master_bio);
@@ -1413,6 +1477,7 @@ static void submit_fast_path(struct drbd_device *device, struct list_head *incom
list_del_init(&req->tl_requests);
drbd_send_and_submit(device, req);
}
+ blk_finish_plug(&plug);
}
static bool prepare_al_transaction_nonblock(struct drbd_device *device,
@@ -1420,12 +1485,12 @@ static bool prepare_al_transaction_nonblock(struct drbd_device *device,
struct list_head *pending,
struct list_head *later)
{
- struct drbd_request *req, *tmp;
+ struct drbd_request *req;
int wake = 0;
int err;
spin_lock_irq(&device->al_lock);
- list_for_each_entry_safe(req, tmp, incoming, tl_requests) {
+ while ((req = list_first_entry_or_null(incoming, struct drbd_request, tl_requests))) {
err = drbd_al_begin_io_nonblock(device, &req->i);
if (err == -ENOBUFS)
break;
@@ -1442,17 +1507,20 @@ static bool prepare_al_transaction_nonblock(struct drbd_device *device,
return !list_empty(pending);
}
-void send_and_submit_pending(struct drbd_device *device, struct list_head *pending)
+static void send_and_submit_pending(struct drbd_device *device, struct list_head *pending)
{
- struct drbd_request *req, *tmp;
+ struct blk_plug plug;
+ struct drbd_request *req;
- list_for_each_entry_safe(req, tmp, pending, tl_requests) {
+ blk_start_plug(&plug);
+ while ((req = list_first_entry_or_null(pending, struct drbd_request, tl_requests))) {
req->rq_state |= RQ_IN_ACT_LOG;
req->in_actlog_jif = jiffies;
atomic_dec(&device->ap_actlog_cnt);
list_del_init(&req->tl_requests);
drbd_send_and_submit(device, req);
}
+ blk_finish_plug(&plug);
}
void do_submit(struct work_struct *ws)
@@ -1560,7 +1628,7 @@ blk_qc_t drbd_make_request(struct request_queue *q, struct bio *bio)
struct drbd_device *device = (struct drbd_device *) q->queuedata;
unsigned long start_jif;
- blk_queue_split(q, &bio, q->bio_split);
+ blk_queue_split(q, &bio);
start_jif = jiffies;
diff --git a/drivers/block/drbd/drbd_req.h b/drivers/block/drbd/drbd_req.h
index eb49e7f2da91..a2254f825601 100644
--- a/drivers/block/drbd/drbd_req.h
+++ b/drivers/block/drbd/drbd_req.h
@@ -212,6 +212,11 @@ enum drbd_req_state_bits {
/* Should call drbd_al_complete_io() for this request... */
__RQ_IN_ACT_LOG,
+ /* This was the most recent request during some blk_finish_plug()
+ * or its implicit from-schedule equivalent.
+ * We may use it as hint to send a P_UNPLUG_REMOTE */
+ __RQ_UNPLUG,
+
/* The peer has sent a retry ACK */
__RQ_POSTPONED,
@@ -249,6 +254,7 @@ enum drbd_req_state_bits {
#define RQ_WSAME (1UL << __RQ_WSAME)
#define RQ_UNMAP (1UL << __RQ_UNMAP)
#define RQ_IN_ACT_LOG (1UL << __RQ_IN_ACT_LOG)
+#define RQ_UNPLUG (1UL << __RQ_UNPLUG)
#define RQ_POSTPONED (1UL << __RQ_POSTPONED)
#define RQ_COMPLETION_SUSP (1UL << __RQ_COMPLETION_SUSP)
#define RQ_EXP_RECEIVE_ACK (1UL << __RQ_EXP_RECEIVE_ACK)
@@ -263,7 +269,7 @@ enum drbd_req_state_bits {
static inline void drbd_req_make_private_bio(struct drbd_request *req, struct bio *bio_src)
{
struct bio *bio;
- bio = bio_clone(bio_src, GFP_NOIO); /* XXX cannot fail?? */
+ bio = bio_clone_fast(bio_src, GFP_NOIO, drbd_io_bio_set);
req->private_bio = bio;
diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c
index eea0c4aec978..0813c654c893 100644
--- a/drivers/block/drbd/drbd_state.c
+++ b/drivers/block/drbd/drbd_state.c
@@ -346,7 +346,7 @@ static enum drbd_role min_role(enum drbd_role role1, enum drbd_role role2)
enum drbd_role conn_highest_role(struct drbd_connection *connection)
{
- enum drbd_role role = R_UNKNOWN;
+ enum drbd_role role = R_SECONDARY;
struct drbd_peer_device *peer_device;
int vnr;
@@ -579,11 +579,14 @@ drbd_req_state(struct drbd_device *device, union drbd_state mask,
unsigned long flags;
union drbd_state os, ns;
enum drbd_state_rv rv;
+ void *buffer = NULL;
init_completion(&done);
if (f & CS_SERIALIZE)
mutex_lock(device->state_mutex);
+ if (f & CS_INHIBIT_MD_IO)
+ buffer = drbd_md_get_buffer(device, __func__);
spin_lock_irqsave(&device->resource->req_lock, flags);
os = drbd_read_state(device);
@@ -636,6 +639,8 @@ drbd_req_state(struct drbd_device *device, union drbd_state mask,
}
abort:
+ if (buffer)
+ drbd_md_put_buffer(device);
if (f & CS_SERIALIZE)
mutex_unlock(device->state_mutex);
@@ -664,6 +669,47 @@ _drbd_request_state(struct drbd_device *device, union drbd_state mask,
return rv;
}
+/*
+ * We grab drbd_md_get_buffer(), because we don't want to "fail" the disk while
+ * there is IO in-flight: the transition into D_FAILED for detach purposes
+ * may get misinterpreted as actual IO error in a confused endio function.
+ *
+ * We wrap it all into wait_event(), to retry in case the drbd_req_state()
+ * returns SS_IN_TRANSIENT_STATE.
+ *
+ * To avoid potential deadlock with e.g. the receiver thread trying to grab
+ * drbd_md_get_buffer() while trying to get out of the "transient state", we
+ * need to grab and release the meta data buffer inside of that wait_event loop.
+ */
+static enum drbd_state_rv
+request_detach(struct drbd_device *device)
+{
+ return drbd_req_state(device, NS(disk, D_FAILED),
+ CS_VERBOSE | CS_ORDERED | CS_INHIBIT_MD_IO);
+}
+
+enum drbd_state_rv
+drbd_request_detach_interruptible(struct drbd_device *device)
+{
+ enum drbd_state_rv rv;
+ int ret;
+
+ drbd_suspend_io(device); /* so no-one is stuck in drbd_al_begin_io */
+ wait_event_interruptible(device->state_wait,
+ (rv = request_detach(device)) != SS_IN_TRANSIENT_STATE);
+ drbd_resume_io(device);
+
+ ret = wait_event_interruptible(device->misc_wait,
+ device->state.disk != D_FAILED);
+
+ if (rv == SS_IS_DISKLESS)
+ rv = SS_NOTHING_TO_DO;
+ if (ret)
+ rv = ERR_INTR;
+
+ return rv;
+}
+
enum drbd_state_rv
_drbd_request_state_holding_state_mutex(struct drbd_device *device, union drbd_state mask,
union drbd_state val, enum chg_state_flags f)
diff --git a/drivers/block/drbd/drbd_state.h b/drivers/block/drbd/drbd_state.h
index 6c9d5d4a8a75..0276c98fbbdd 100644
--- a/drivers/block/drbd/drbd_state.h
+++ b/drivers/block/drbd/drbd_state.h
@@ -71,6 +71,10 @@ enum chg_state_flags {
CS_DC_SUSP = 1 << 10,
CS_DC_MASK = CS_DC_ROLE + CS_DC_PEER + CS_DC_CONN + CS_DC_DISK + CS_DC_PDSK,
CS_IGN_OUTD_FAIL = 1 << 11,
+
+ /* Make sure no meta data IO is in flight, by calling
+ * drbd_md_get_buffer(). Used for graceful detach. */
+ CS_INHIBIT_MD_IO = 1 << 12,
};
/* drbd_dev_state and drbd_state are different types. This is to stress the
@@ -156,6 +160,10 @@ static inline int drbd_request_state(struct drbd_device *device,
return _drbd_request_state(device, mask, val, CS_VERBOSE + CS_ORDERED);
}
+/* for use in adm_detach() (drbd_adm_detach(), drbd_adm_down()) */
+enum drbd_state_rv
+drbd_request_detach_interruptible(struct drbd_device *device);
+
enum drbd_role conn_highest_role(struct drbd_connection *connection);
enum drbd_role conn_highest_peer(struct drbd_connection *connection);
enum drbd_disk_state conn_highest_disk(struct drbd_connection *connection);
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index 1afcb4e02d8d..03471b3fce86 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -63,7 +63,12 @@ void drbd_md_endio(struct bio *bio)
struct drbd_device *device;
device = bio->bi_private;
- device->md_io.error = bio->bi_error;
+ device->md_io.error = blk_status_to_errno(bio->bi_status);
+
+ /* special case: drbd_md_read() during drbd_adm_attach() */
+ if (device->ldev)
+ put_ldev(device);
+ bio_put(bio);
/* We grabbed an extra reference in _drbd_md_sync_page_io() to be able
* to timeout on the lower level device, and eventually detach from it.
@@ -79,9 +84,6 @@ void drbd_md_endio(struct bio *bio)
drbd_md_put_buffer(device);
device->md_io.done = 1;
wake_up(&device->misc_wait);
- bio_put(bio);
- if (device->ldev) /* special case: drbd_md_read() during drbd_adm_attach() */
- put_ldev(device);
}
/* reads on behalf of the partner,
@@ -128,6 +130,14 @@ void drbd_endio_write_sec_final(struct drbd_peer_request *peer_req) __releases(l
block_id = peer_req->block_id;
peer_req->flags &= ~EE_CALL_AL_COMPLETE_IO;
+ if (peer_req->flags & EE_WAS_ERROR) {
+ /* In protocol != C, we usually do not send write acks.
+ * In case of a write error, send the neg ack anyways. */
+ if (!__test_and_set_bit(__EE_SEND_WRITE_ACK, &peer_req->flags))
+ inc_unacked(device);
+ drbd_set_out_of_sync(device, peer_req->i.sector, peer_req->i.size);
+ }
+
spin_lock_irqsave(&device->resource->req_lock, flags);
device->writ_cnt += peer_req->i.size >> 9;
list_move_tail(&peer_req->w.list, &device->done_ee);
@@ -177,13 +187,13 @@ void drbd_peer_request_endio(struct bio *bio)
bool is_discard = bio_op(bio) == REQ_OP_WRITE_ZEROES ||
bio_op(bio) == REQ_OP_DISCARD;
- if (bio->bi_error && __ratelimit(&drbd_ratelimit_state))
+ if (bio->bi_status && __ratelimit(&drbd_ratelimit_state))
drbd_warn(device, "%s: error=%d s=%llus\n",
is_write ? (is_discard ? "discard" : "write")
- : "read", bio->bi_error,
+ : "read", bio->bi_status,
(unsigned long long)peer_req->i.sector);
- if (bio->bi_error)
+ if (bio->bi_status)
set_bit(__EE_WAS_ERROR, &peer_req->flags);
bio_put(bio); /* no need for the bio anymore */
@@ -195,7 +205,8 @@ void drbd_peer_request_endio(struct bio *bio)
}
}
-void drbd_panic_after_delayed_completion_of_aborted_request(struct drbd_device *device)
+static void
+drbd_panic_after_delayed_completion_of_aborted_request(struct drbd_device *device)
{
panic("drbd%u %s/%u potential random memory corruption caused by delayed completion of aborted local request\n",
device->minor, device->resource->name, device->vnr);
@@ -243,16 +254,16 @@ void drbd_request_endio(struct bio *bio)
if (__ratelimit(&drbd_ratelimit_state))
drbd_emerg(device, "delayed completion of aborted local request; disk-timeout may be too aggressive\n");
- if (!bio->bi_error)
+ if (!bio->bi_status)
drbd_panic_after_delayed_completion_of_aborted_request(device);
}
/* to avoid recursion in __req_mod */
- if (unlikely(bio->bi_error)) {
+ if (unlikely(bio->bi_status)) {
switch (bio_op(bio)) {
case REQ_OP_WRITE_ZEROES:
case REQ_OP_DISCARD:
- if (bio->bi_error == -EOPNOTSUPP)
+ if (bio->bi_status == BLK_STS_NOTSUPP)
what = DISCARD_COMPLETED_NOTSUPP;
else
what = DISCARD_COMPLETED_WITH_ERROR;
@@ -272,7 +283,7 @@ void drbd_request_endio(struct bio *bio)
}
bio_put(req->private_bio);
- req->private_bio = ERR_PTR(bio->bi_error);
+ req->private_bio = ERR_PTR(blk_status_to_errno(bio->bi_status));
/* not req_mod(), we need irqsave here! */
spin_lock_irqsave(&device->resource->req_lock, flags);
@@ -1382,18 +1393,22 @@ static int drbd_send_barrier(struct drbd_connection *connection)
return conn_send_command(connection, sock, P_BARRIER, sizeof(*p), NULL, 0);
}
+static int pd_send_unplug_remote(struct drbd_peer_device *pd)
+{
+ struct drbd_socket *sock = &pd->connection->data;
+ if (!drbd_prepare_command(pd, sock))
+ return -EIO;
+ return drbd_send_command(pd, sock, P_UNPLUG_REMOTE, 0, NULL, 0);
+}
+
int w_send_write_hint(struct drbd_work *w, int cancel)
{
struct drbd_device *device =
container_of(w, struct drbd_device, unplug_work);
- struct drbd_socket *sock;
if (cancel)
return 0;
- sock = &first_peer_device(device)->connection->data;
- if (!drbd_prepare_command(first_peer_device(device), sock))
- return -EIO;
- return drbd_send_command(first_peer_device(device), sock, P_UNPLUG_REMOTE, 0, NULL, 0);
+ return pd_send_unplug_remote(first_peer_device(device));
}
static void re_init_if_first_write(struct drbd_connection *connection, unsigned int epoch)
@@ -1455,6 +1470,7 @@ int w_send_dblock(struct drbd_work *w, int cancel)
struct drbd_device *device = req->device;
struct drbd_peer_device *const peer_device = first_peer_device(device);
struct drbd_connection *connection = peer_device->connection;
+ bool do_send_unplug = req->rq_state & RQ_UNPLUG;
int err;
if (unlikely(cancel)) {
@@ -1470,6 +1486,9 @@ int w_send_dblock(struct drbd_work *w, int cancel)
err = drbd_send_dblock(peer_device, req);
req_mod(req, err ? SEND_FAILED : HANDED_OVER_TO_NETWORK);
+ if (do_send_unplug && !err)
+ pd_send_unplug_remote(peer_device);
+
return err;
}
@@ -1484,6 +1503,7 @@ int w_send_read_req(struct drbd_work *w, int cancel)
struct drbd_device *device = req->device;
struct drbd_peer_device *const peer_device = first_peer_device(device);
struct drbd_connection *connection = peer_device->connection;
+ bool do_send_unplug = req->rq_state & RQ_UNPLUG;
int err;
if (unlikely(cancel)) {
@@ -1501,6 +1521,9 @@ int w_send_read_req(struct drbd_work *w, int cancel)
req_mod(req, err ? SEND_FAILED : HANDED_OVER_TO_NETWORK);
+ if (do_send_unplug && !err)
+ pd_send_unplug_remote(peer_device);
+
return err;
}
@@ -1513,7 +1536,7 @@ int w_restart_disk_io(struct drbd_work *w, int cancel)
drbd_al_begin_io(device, &req->i);
drbd_req_make_private_bio(req, req->master_bio);
- req->private_bio->bi_bdev = device->ldev->backing_bdev;
+ bio_set_dev(req->private_bio, device->ldev->backing_bdev);
generic_make_request(req->private_bio);
return 0;
@@ -1733,6 +1756,11 @@ void drbd_start_resync(struct drbd_device *device, enum drbd_conns side)
return;
}
+ if (!connection) {
+ drbd_err(device, "No connection to peer, aborting!\n");
+ return;
+ }
+
if (!test_bit(B_RS_H_DONE, &device->flags)) {
if (side == C_SYNC_TARGET) {
/* Since application IO was locked out during C_WF_BITMAP_T and
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 60d4c7653178..60c086a53609 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -192,6 +192,7 @@ static int print_unex = 1;
#include <linux/io.h>
#include <linux/uaccess.h>
#include <linux/async.h>
+#include <linux/compat.h>
/*
* PS/2 floppies have much slower step rates than regular floppies.
@@ -2202,7 +2203,7 @@ static int do_format(int drive, struct format_descr *tmp_format_req)
* =============================
*/
-static void floppy_end_request(struct request *req, int error)
+static void floppy_end_request(struct request *req, blk_status_t error)
{
unsigned int nr_sectors = current_count_sectors;
unsigned int drive = (unsigned long)req->rq_disk->private_data;
@@ -2263,7 +2264,7 @@ static void request_done(int uptodate)
DRWE->last_error_generation = DRS->generation;
}
spin_lock_irqsave(q->queue_lock, flags);
- floppy_end_request(req, -EIO);
+ floppy_end_request(req, BLK_STS_IOERR);
spin_unlock_irqrestore(q->queue_lock, flags);
}
}
@@ -3568,6 +3569,330 @@ static int fd_ioctl(struct block_device *bdev, fmode_t mode,
return ret;
}
+#ifdef CONFIG_COMPAT
+
+struct compat_floppy_drive_params {
+ char cmos;
+ compat_ulong_t max_dtr;
+ compat_ulong_t hlt;
+ compat_ulong_t hut;
+ compat_ulong_t srt;
+ compat_ulong_t spinup;
+ compat_ulong_t spindown;
+ unsigned char spindown_offset;
+ unsigned char select_delay;
+ unsigned char rps;
+ unsigned char tracks;
+ compat_ulong_t timeout;
+ unsigned char interleave_sect;
+ struct floppy_max_errors max_errors;
+ char flags;
+ char read_track;
+ short autodetect[8];
+ compat_int_t checkfreq;
+ compat_int_t native_format;
+};
+
+struct compat_floppy_drive_struct {
+ signed char flags;
+ compat_ulong_t spinup_date;
+ compat_ulong_t select_date;
+ compat_ulong_t first_read_date;
+ short probed_format;
+ short track;
+ short maxblock;
+ short maxtrack;
+ compat_int_t generation;
+ compat_int_t keep_data;
+ compat_int_t fd_ref;
+ compat_int_t fd_device;
+ compat_int_t last_checked;
+ compat_caddr_t dmabuf;
+ compat_int_t bufblocks;
+};
+
+struct compat_floppy_fdc_state {
+ compat_int_t spec1;
+ compat_int_t spec2;
+ compat_int_t dtr;
+ unsigned char version;
+ unsigned char dor;
+ compat_ulong_t address;
+ unsigned int rawcmd:2;
+ unsigned int reset:1;
+ unsigned int need_configure:1;
+ unsigned int perp_mode:2;
+ unsigned int has_fifo:1;
+ unsigned int driver_version;
+ unsigned char track[4];
+};
+
+struct compat_floppy_write_errors {
+ unsigned int write_errors;
+ compat_ulong_t first_error_sector;
+ compat_int_t first_error_generation;
+ compat_ulong_t last_error_sector;
+ compat_int_t last_error_generation;
+ compat_uint_t badness;
+};
+
+#define FDSETPRM32 _IOW(2, 0x42, struct compat_floppy_struct)
+#define FDDEFPRM32 _IOW(2, 0x43, struct compat_floppy_struct)
+#define FDSETDRVPRM32 _IOW(2, 0x90, struct compat_floppy_drive_params)
+#define FDGETDRVPRM32 _IOR(2, 0x11, struct compat_floppy_drive_params)
+#define FDGETDRVSTAT32 _IOR(2, 0x12, struct compat_floppy_drive_struct)
+#define FDPOLLDRVSTAT32 _IOR(2, 0x13, struct compat_floppy_drive_struct)
+#define FDGETFDCSTAT32 _IOR(2, 0x15, struct compat_floppy_fdc_state)
+#define FDWERRORGET32 _IOR(2, 0x17, struct compat_floppy_write_errors)
+
+static int compat_set_geometry(struct block_device *bdev, fmode_t mode, unsigned int cmd,
+ struct compat_floppy_struct __user *arg)
+{
+ struct floppy_struct v;
+ int drive, type;
+ int err;
+
+ BUILD_BUG_ON(offsetof(struct floppy_struct, name) !=
+ offsetof(struct compat_floppy_struct, name));
+
+ if (!(mode & (FMODE_WRITE | FMODE_WRITE_IOCTL)))
+ return -EPERM;
+
+ memset(&v, 0, sizeof(struct floppy_struct));
+ if (copy_from_user(&v, arg, offsetof(struct floppy_struct, name)))
+ return -EFAULT;
+
+ mutex_lock(&floppy_mutex);
+ drive = (long)bdev->bd_disk->private_data;
+ type = ITYPE(UDRS->fd_device);
+ err = set_geometry(cmd == FDSETPRM32 ? FDSETPRM : FDDEFPRM,
+ &v, drive, type, bdev);
+ mutex_unlock(&floppy_mutex);
+ return err;
+}
+
+static int compat_get_prm(int drive,
+ struct compat_floppy_struct __user *arg)
+{
+ struct compat_floppy_struct v;
+ struct floppy_struct *p;
+ int err;
+
+ memset(&v, 0, sizeof(v));
+ mutex_lock(&floppy_mutex);
+ err = get_floppy_geometry(drive, ITYPE(UDRS->fd_device), &p);
+ if (err) {
+ mutex_unlock(&floppy_mutex);
+ return err;
+ }
+ memcpy(&v, p, offsetof(struct floppy_struct, name));
+ mutex_unlock(&floppy_mutex);
+ if (copy_to_user(arg, &v, sizeof(struct compat_floppy_struct)))
+ return -EFAULT;
+ return 0;
+}
+
+static int compat_setdrvprm(int drive,
+ struct compat_floppy_drive_params __user *arg)
+{
+ struct compat_floppy_drive_params v;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ if (copy_from_user(&v, arg, sizeof(struct compat_floppy_drive_params)))
+ return -EFAULT;
+ mutex_lock(&floppy_mutex);
+ UDP->cmos = v.cmos;
+ UDP->max_dtr = v.max_dtr;
+ UDP->hlt = v.hlt;
+ UDP->hut = v.hut;
+ UDP->srt = v.srt;
+ UDP->spinup = v.spinup;
+ UDP->spindown = v.spindown;
+ UDP->spindown_offset = v.spindown_offset;
+ UDP->select_delay = v.select_delay;
+ UDP->rps = v.rps;
+ UDP->tracks = v.tracks;
+ UDP->timeout = v.timeout;
+ UDP->interleave_sect = v.interleave_sect;
+ UDP->max_errors = v.max_errors;
+ UDP->flags = v.flags;
+ UDP->read_track = v.read_track;
+ memcpy(UDP->autodetect, v.autodetect, sizeof(v.autodetect));
+ UDP->checkfreq = v.checkfreq;
+ UDP->native_format = v.native_format;
+ mutex_unlock(&floppy_mutex);
+ return 0;
+}
+
+static int compat_getdrvprm(int drive,
+ struct compat_floppy_drive_params __user *arg)
+{
+ struct compat_floppy_drive_params v;
+
+ memset(&v, 0, sizeof(struct compat_floppy_drive_params));
+ mutex_lock(&floppy_mutex);
+ v.cmos = UDP->cmos;
+ v.max_dtr = UDP->max_dtr;
+ v.hlt = UDP->hlt;
+ v.hut = UDP->hut;
+ v.srt = UDP->srt;
+ v.spinup = UDP->spinup;
+ v.spindown = UDP->spindown;
+ v.spindown_offset = UDP->spindown_offset;
+ v.select_delay = UDP->select_delay;
+ v.rps = UDP->rps;
+ v.tracks = UDP->tracks;
+ v.timeout = UDP->timeout;
+ v.interleave_sect = UDP->interleave_sect;
+ v.max_errors = UDP->max_errors;
+ v.flags = UDP->flags;
+ v.read_track = UDP->read_track;
+ memcpy(v.autodetect, UDP->autodetect, sizeof(v.autodetect));
+ v.checkfreq = UDP->checkfreq;
+ v.native_format = UDP->native_format;
+ mutex_unlock(&floppy_mutex);
+
+ if (copy_from_user(arg, &v, sizeof(struct compat_floppy_drive_params)))
+ return -EFAULT;
+ return 0;
+}
+
+static int compat_getdrvstat(int drive, bool poll,
+ struct compat_floppy_drive_struct __user *arg)
+{
+ struct compat_floppy_drive_struct v;
+
+ memset(&v, 0, sizeof(struct compat_floppy_drive_struct));
+ mutex_lock(&floppy_mutex);
+
+ if (poll) {
+ if (lock_fdc(drive))
+ goto Eintr;
+ if (poll_drive(true, FD_RAW_NEED_DISK) == -EINTR)
+ goto Eintr;
+ process_fd_request();
+ }
+ v.spinup_date = UDRS->spinup_date;
+ v.select_date = UDRS->select_date;
+ v.first_read_date = UDRS->first_read_date;
+ v.probed_format = UDRS->probed_format;
+ v.track = UDRS->track;
+ v.maxblock = UDRS->maxblock;
+ v.maxtrack = UDRS->maxtrack;
+ v.generation = UDRS->generation;
+ v.keep_data = UDRS->keep_data;
+ v.fd_ref = UDRS->fd_ref;
+ v.fd_device = UDRS->fd_device;
+ v.last_checked = UDRS->last_checked;
+ v.dmabuf = (uintptr_t)UDRS->dmabuf;
+ v.bufblocks = UDRS->bufblocks;
+ mutex_unlock(&floppy_mutex);
+
+ if (copy_from_user(arg, &v, sizeof(struct compat_floppy_drive_struct)))
+ return -EFAULT;
+ return 0;
+Eintr:
+ mutex_unlock(&floppy_mutex);
+ return -EINTR;
+}
+
+static int compat_getfdcstat(int drive,
+ struct compat_floppy_fdc_state __user *arg)
+{
+ struct compat_floppy_fdc_state v32;
+ struct floppy_fdc_state v;
+
+ mutex_lock(&floppy_mutex);
+ v = *UFDCS;
+ mutex_unlock(&floppy_mutex);
+
+ memset(&v32, 0, sizeof(struct compat_floppy_fdc_state));
+ v32.spec1 = v.spec1;
+ v32.spec2 = v.spec2;
+ v32.dtr = v.dtr;
+ v32.version = v.version;
+ v32.dor = v.dor;
+ v32.address = v.address;
+ v32.rawcmd = v.rawcmd;
+ v32.reset = v.reset;
+ v32.need_configure = v.need_configure;
+ v32.perp_mode = v.perp_mode;
+ v32.has_fifo = v.has_fifo;
+ v32.driver_version = v.driver_version;
+ memcpy(v32.track, v.track, 4);
+ if (copy_to_user(arg, &v32, sizeof(struct compat_floppy_fdc_state)))
+ return -EFAULT;
+ return 0;
+}
+
+static int compat_werrorget(int drive,
+ struct compat_floppy_write_errors __user *arg)
+{
+ struct compat_floppy_write_errors v32;
+ struct floppy_write_errors v;
+
+ memset(&v32, 0, sizeof(struct compat_floppy_write_errors));
+ mutex_lock(&floppy_mutex);
+ v = *UDRWE;
+ mutex_unlock(&floppy_mutex);
+ v32.write_errors = v.write_errors;
+ v32.first_error_sector = v.first_error_sector;
+ v32.first_error_generation = v.first_error_generation;
+ v32.last_error_sector = v.last_error_sector;
+ v32.last_error_generation = v.last_error_generation;
+ v32.badness = v.badness;
+ if (copy_to_user(arg, &v32, sizeof(struct compat_floppy_write_errors)))
+ return -EFAULT;
+ return 0;
+}
+
+static int fd_compat_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd,
+ unsigned long param)
+{
+ int drive = (long)bdev->bd_disk->private_data;
+ switch (cmd) {
+ case FDMSGON:
+ case FDMSGOFF:
+ case FDSETEMSGTRESH:
+ case FDFLUSH:
+ case FDWERRORCLR:
+ case FDEJECT:
+ case FDCLRPRM:
+ case FDFMTBEG:
+ case FDRESET:
+ case FDTWADDLE:
+ return fd_ioctl(bdev, mode, cmd, param);
+ case FDSETMAXERRS:
+ case FDGETMAXERRS:
+ case FDGETDRVTYP:
+ case FDFMTEND:
+ case FDFMTTRK:
+ case FDRAWCMD:
+ return fd_ioctl(bdev, mode, cmd,
+ (unsigned long)compat_ptr(param));
+ case FDSETPRM32:
+ case FDDEFPRM32:
+ return compat_set_geometry(bdev, mode, cmd, compat_ptr(param));
+ case FDGETPRM32:
+ return compat_get_prm(drive, compat_ptr(param));
+ case FDSETDRVPRM32:
+ return compat_setdrvprm(drive, compat_ptr(param));
+ case FDGETDRVPRM32:
+ return compat_getdrvprm(drive, compat_ptr(param));
+ case FDPOLLDRVSTAT32:
+ return compat_getdrvstat(drive, true, compat_ptr(param));
+ case FDGETDRVSTAT32:
+ return compat_getdrvstat(drive, false, compat_ptr(param));
+ case FDGETFDCSTAT32:
+ return compat_getfdcstat(drive, compat_ptr(param));
+ case FDWERRORGET32:
+ return compat_werrorget(drive, compat_ptr(param));
+ }
+ return -EINVAL;
+}
+#endif
+
static void __init config_types(void)
{
bool has_drive = false;
@@ -3780,9 +4105,9 @@ static void floppy_rb0_cb(struct bio *bio)
struct rb0_cbdata *cbdata = (struct rb0_cbdata *)bio->bi_private;
int drive = cbdata->drive;
- if (bio->bi_error) {
+ if (bio->bi_status) {
pr_info("floppy: error %d while reading block 0\n",
- bio->bi_error);
+ bio->bi_status);
set_bit(FD_OPEN_SHOULD_FAIL_BIT, &UDRS->flags);
}
complete(&cbdata->complete);
@@ -3809,7 +4134,7 @@ static int __floppy_read_block_0(struct block_device *bdev, int drive)
cbdata.drive = drive;
bio_init(&bio, &bio_vec, 1);
- bio.bi_bdev = bdev;
+ bio_set_dev(&bio, bdev);
bio_add_page(&bio, page, size, 0);
bio.bi_iter.bi_sector = 0;
@@ -3885,6 +4210,9 @@ static const struct block_device_operations floppy_fops = {
.getgeo = fd_getgeo,
.check_events = floppy_check_events,
.revalidate_disk = floppy_revalidate,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = fd_compat_ioctl,
+#endif
};
/*
@@ -4203,6 +4531,7 @@ static int __init do_floppy_init(void)
goto out_put_disk;
}
+ blk_queue_bounce_limit(disks[drive]->queue, BLK_BOUNCE_HIGH);
blk_queue_max_hw_sectors(disks[drive]->queue, 64);
disks[drive]->major = FLOPPY_MAJOR;
disks[drive]->first_minor = TOMINOR(drive);
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index ebbd0c3fe0ed..85de67334695 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -213,10 +213,13 @@ static void __loop_update_dio(struct loop_device *lo, bool dio)
*/
blk_mq_freeze_queue(lo->lo_queue);
lo->use_dio = use_dio;
- if (use_dio)
+ if (use_dio) {
+ queue_flag_clear_unlocked(QUEUE_FLAG_NOMERGES, lo->lo_queue);
lo->lo_flags |= LO_FLAGS_DIRECT_IO;
- else
+ } else {
+ queue_flag_set_unlocked(QUEUE_FLAG_NOMERGES, lo->lo_queue);
lo->lo_flags &= ~LO_FLAGS_DIRECT_IO;
+ }
blk_mq_unfreeze_queue(lo->lo_queue);
}
@@ -266,7 +269,7 @@ static int lo_write_bvec(struct file *file, struct bio_vec *bvec, loff_t *ppos)
iov_iter_bvec(&i, ITER_BVEC, bvec, 1, bvec->bv_len);
file_start_write(file);
- bw = vfs_iter_write(file, &i, ppos);
+ bw = vfs_iter_write(file, &i, ppos, 0);
file_end_write(file);
if (likely(bw == bvec->bv_len))
@@ -342,7 +345,7 @@ static int lo_read_simple(struct loop_device *lo, struct request *rq,
rq_for_each_segment(bvec, rq, iter) {
iov_iter_bvec(&i, ITER_BVEC, &bvec, 1, bvec.bv_len);
- len = vfs_iter_read(lo->lo_backing_file, &i, &pos);
+ len = vfs_iter_read(lo->lo_backing_file, &i, &pos, 0);
if (len < 0)
return len;
@@ -383,7 +386,7 @@ static int lo_read_transfer(struct loop_device *lo, struct request *rq,
b.bv_len = bvec.bv_len;
iov_iter_bvec(&i, ITER_BVEC, &b, 1, b.bv_len);
- len = vfs_iter_read(lo->lo_backing_file, &i, &pos);
+ len = vfs_iter_read(lo->lo_backing_file, &i, &pos, 0);
if (len < 0) {
ret = len;
goto out_free_page;
@@ -457,7 +460,16 @@ static void lo_complete_rq(struct request *rq)
zero_fill_bio(bio);
}
- blk_mq_end_request(rq, cmd->ret < 0 ? -EIO : 0);
+ blk_mq_end_request(rq, cmd->ret < 0 ? BLK_STS_IOERR : BLK_STS_OK);
+}
+
+static void lo_rw_aio_do_completion(struct loop_cmd *cmd)
+{
+ if (!atomic_dec_and_test(&cmd->ref))
+ return;
+ kfree(cmd->bvec);
+ cmd->bvec = NULL;
+ blk_mq_complete_request(cmd->rq);
}
static void lo_rw_aio_complete(struct kiocb *iocb, long ret, long ret2)
@@ -465,7 +477,7 @@ static void lo_rw_aio_complete(struct kiocb *iocb, long ret, long ret2)
struct loop_cmd *cmd = container_of(iocb, struct loop_cmd, iocb);
cmd->ret = ret;
- blk_mq_complete_request(cmd->rq);
+ lo_rw_aio_do_completion(cmd);
}
static int lo_rw_aio(struct loop_device *lo, struct loop_cmd *cmd,
@@ -473,22 +485,51 @@ static int lo_rw_aio(struct loop_device *lo, struct loop_cmd *cmd,
{
struct iov_iter iter;
struct bio_vec *bvec;
- struct bio *bio = cmd->rq->bio;
+ struct request *rq = cmd->rq;
+ struct bio *bio = rq->bio;
struct file *file = lo->lo_backing_file;
+ unsigned int offset;
+ int segments = 0;
int ret;
- /* nomerge for loop request queue */
- WARN_ON(cmd->rq->bio != cmd->rq->biotail);
+ if (rq->bio != rq->biotail) {
+ struct req_iterator iter;
+ struct bio_vec tmp;
+
+ __rq_for_each_bio(bio, rq)
+ segments += bio_segments(bio);
+ bvec = kmalloc(sizeof(struct bio_vec) * segments, GFP_NOIO);
+ if (!bvec)
+ return -EIO;
+ cmd->bvec = bvec;
+
+ /*
+ * The bios of the request may be started from the middle of
+ * the 'bvec' because of bio splitting, so we can't directly
+ * copy bio->bi_iov_vec to new bvec. The rq_for_each_segment
+ * API will take care of all details for us.
+ */
+ rq_for_each_segment(tmp, rq, iter) {
+ *bvec = tmp;
+ bvec++;
+ }
+ bvec = cmd->bvec;
+ offset = 0;
+ } else {
+ /*
+ * Same here, this bio may be started from the middle of the
+ * 'bvec' because of bio splitting, so offset from the bvec
+ * must be passed to iov iterator
+ */
+ offset = bio->bi_iter.bi_bvec_done;
+ bvec = __bvec_iter_bvec(bio->bi_io_vec, bio->bi_iter);
+ segments = bio_segments(bio);
+ }
+ atomic_set(&cmd->ref, 2);
- bvec = __bvec_iter_bvec(bio->bi_io_vec, bio->bi_iter);
iov_iter_bvec(&iter, ITER_BVEC | rw, bvec,
- bio_segments(bio), blk_rq_bytes(cmd->rq));
- /*
- * This bio may be started from the middle of the 'bvec'
- * because of bio splitting, so offset from the bvec must
- * be passed to iov iterator
- */
- iter.iov_offset = bio->bi_iter.bi_bvec_done;
+ segments, blk_rq_bytes(rq));
+ iter.iov_offset = offset;
cmd->iocb.ki_pos = pos;
cmd->iocb.ki_filp = file;
@@ -500,6 +541,8 @@ static int lo_rw_aio(struct loop_device *lo, struct loop_cmd *cmd,
else
ret = call_read_iter(file, &cmd->iocb, &iter);
+ lo_rw_aio_do_completion(cmd);
+
if (ret != -EIOCBQUEUED)
cmd->iocb.ki_complete(&cmd->iocb, ret, 0);
return 0;
@@ -546,74 +589,12 @@ static int do_req_filebacked(struct loop_device *lo, struct request *rq)
}
}
-struct switch_request {
- struct file *file;
- struct completion wait;
-};
-
static inline void loop_update_dio(struct loop_device *lo)
{
__loop_update_dio(lo, io_is_direct(lo->lo_backing_file) |
lo->use_dio);
}
-/*
- * Do the actual switch; called from the BIO completion routine
- */
-static void do_loop_switch(struct loop_device *lo, struct switch_request *p)
-{
- struct file *file = p->file;
- struct file *old_file = lo->lo_backing_file;
- struct address_space *mapping;
-
- /* if no new file, only flush of queued bios requested */
- if (!file)
- return;
-
- mapping = file->f_mapping;
- mapping_set_gfp_mask(old_file->f_mapping, lo->old_gfp_mask);
- lo->lo_backing_file = file;
- lo->lo_blocksize = S_ISBLK(mapping->host->i_mode) ?
- mapping->host->i_bdev->bd_block_size : PAGE_SIZE;
- lo->old_gfp_mask = mapping_gfp_mask(mapping);
- mapping_set_gfp_mask(mapping, lo->old_gfp_mask & ~(__GFP_IO|__GFP_FS));
- loop_update_dio(lo);
-}
-
-/*
- * loop_switch performs the hard work of switching a backing store.
- * First it needs to flush existing IO, it does this by sending a magic
- * BIO down the pipe. The completion of this BIO does the actual switch.
- */
-static int loop_switch(struct loop_device *lo, struct file *file)
-{
- struct switch_request w;
-
- w.file = file;
-
- /* freeze queue and wait for completion of scheduled requests */
- blk_mq_freeze_queue(lo->lo_queue);
-
- /* do the switch action */
- do_loop_switch(lo, &w);
-
- /* unfreeze */
- blk_mq_unfreeze_queue(lo->lo_queue);
-
- return 0;
-}
-
-/*
- * Helper to flush the IOs in loop, but keeping loop thread running
- */
-static int loop_flush(struct loop_device *lo)
-{
- /* loop not yet configured, no running thread, nothing to flush */
- if (lo->lo_state != Lo_bound)
- return 0;
- return loop_switch(lo, NULL);
-}
-
static void loop_reread_partitions(struct loop_device *lo,
struct block_device *bdev)
{
@@ -678,9 +659,14 @@ static int loop_change_fd(struct loop_device *lo, struct block_device *bdev,
goto out_putf;
/* and ... switch */
- error = loop_switch(lo, file);
- if (error)
- goto out_putf;
+ blk_mq_freeze_queue(lo->lo_queue);
+ mapping_set_gfp_mask(old_file->f_mapping, lo->old_gfp_mask);
+ lo->lo_backing_file = file;
+ lo->old_gfp_mask = mapping_gfp_mask(file->f_mapping);
+ mapping_set_gfp_mask(file->f_mapping,
+ lo->old_gfp_mask & ~(__GFP_IO|__GFP_FS));
+ loop_update_dio(lo);
+ blk_mq_unfreeze_queue(lo->lo_queue);
fput(old_file);
if (lo->lo_flags & LO_FLAGS_PARTSCAN)
@@ -832,6 +818,7 @@ static void loop_config_discard(struct loop_device *lo)
q->limits.discard_granularity = inode->i_sb->s_blocksize;
q->limits.discard_alignment = 0;
+
blk_queue_max_discard_sectors(q, UINT_MAX >> 9);
blk_queue_max_write_zeroes_sectors(q, UINT_MAX >> 9);
queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
@@ -843,10 +830,16 @@ static void loop_unprepare_queue(struct loop_device *lo)
kthread_stop(lo->worker_task);
}
+static int loop_kthread_worker_fn(void *worker_ptr)
+{
+ current->flags |= PF_LESS_THROTTLE;
+ return kthread_worker_fn(worker_ptr);
+}
+
static int loop_prepare_queue(struct loop_device *lo)
{
kthread_init_worker(&lo->worker);
- lo->worker_task = kthread_run(kthread_worker_fn,
+ lo->worker_task = kthread_run(loop_kthread_worker_fn,
&lo->worker, "loop%d", lo->lo_number);
if (IS_ERR(lo->worker_task))
return -ENOMEM;
@@ -860,7 +853,6 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode,
struct file *file, *f;
struct inode *inode;
struct address_space *mapping;
- unsigned lo_blocksize;
int lo_flags = 0;
int error;
loff_t size;
@@ -904,9 +896,6 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode,
!file->f_op->write_iter)
lo_flags |= LO_FLAGS_READ_ONLY;
- lo_blocksize = S_ISBLK(inode->i_mode) ?
- inode->i_bdev->bd_block_size : PAGE_SIZE;
-
error = -EFBIG;
size = get_loop_size(lo, file);
if ((loff_t)(sector_t)size != size)
@@ -920,7 +909,6 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode,
set_device_ro(bdev, (lo_flags & LO_FLAGS_READ_ONLY) != 0);
lo->use_dio = false;
- lo->lo_blocksize = lo_blocksize;
lo->lo_device = bdev;
lo->lo_flags = lo_flags;
lo->lo_backing_file = file;
@@ -940,7 +928,8 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode,
/* let user-space know about the new size */
kobject_uevent(&disk_to_dev(bdev->bd_disk)->kobj, KOBJ_CHANGE);
- set_blocksize(bdev, lo_blocksize);
+ set_blocksize(bdev, S_ISBLK(inode->i_mode) ?
+ block_size(inode->i_bdev) : PAGE_SIZE);
lo->lo_state = Lo_bound;
if (part_shift)
@@ -1046,6 +1035,9 @@ static int loop_clr_fd(struct loop_device *lo)
memset(lo->lo_encrypt_key, 0, LO_KEY_SIZE);
memset(lo->lo_crypt_name, 0, LO_NAME_SIZE);
memset(lo->lo_file_name, 0, LO_NAME_SIZE);
+ blk_queue_logical_block_size(lo->lo_queue, 512);
+ blk_queue_physical_block_size(lo->lo_queue, 512);
+ blk_queue_io_min(lo->lo_queue, 512);
if (bdev) {
bdput(bdev);
invalidate_bdev(bdev);
@@ -1119,11 +1111,12 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
goto exit;
if (lo->lo_offset != info->lo_offset ||
- lo->lo_sizelimit != info->lo_sizelimit)
+ lo->lo_sizelimit != info->lo_sizelimit) {
if (figure_loop_size(lo, info->lo_offset, info->lo_sizelimit)) {
err = -EFBIG;
goto exit;
}
+ }
loop_config_discard(lo);
@@ -1306,7 +1299,7 @@ loop_get_status64(struct loop_device *lo, struct loop_info64 __user *arg) {
return err;
}
-static int loop_set_capacity(struct loop_device *lo, struct block_device *bdev)
+static int loop_set_capacity(struct loop_device *lo)
{
if (unlikely(lo->lo_state != Lo_bound))
return -ENXIO;
@@ -1328,6 +1321,26 @@ static int loop_set_dio(struct loop_device *lo, unsigned long arg)
return error;
}
+static int loop_set_block_size(struct loop_device *lo, unsigned long arg)
+{
+ if (lo->lo_state != Lo_bound)
+ return -ENXIO;
+
+ if (arg < 512 || arg > PAGE_SIZE || !is_power_of_2(arg))
+ return -EINVAL;
+
+ blk_mq_freeze_queue(lo->lo_queue);
+
+ blk_queue_logical_block_size(lo->lo_queue, arg);
+ blk_queue_physical_block_size(lo->lo_queue, arg);
+ blk_queue_io_min(lo->lo_queue, arg);
+ loop_update_dio(lo);
+
+ blk_mq_unfreeze_queue(lo->lo_queue);
+
+ return 0;
+}
+
static int lo_ioctl(struct block_device *bdev, fmode_t mode,
unsigned int cmd, unsigned long arg)
{
@@ -1369,13 +1382,18 @@ static int lo_ioctl(struct block_device *bdev, fmode_t mode,
case LOOP_SET_CAPACITY:
err = -EPERM;
if ((mode & FMODE_WRITE) || capable(CAP_SYS_ADMIN))
- err = loop_set_capacity(lo, bdev);
+ err = loop_set_capacity(lo);
break;
case LOOP_SET_DIRECT_IO:
err = -EPERM;
if ((mode & FMODE_WRITE) || capable(CAP_SYS_ADMIN))
err = loop_set_dio(lo, arg);
break;
+ case LOOP_SET_BLOCK_SIZE:
+ err = -EPERM;
+ if ((mode & FMODE_WRITE) || capable(CAP_SYS_ADMIN))
+ err = loop_set_block_size(lo, arg);
+ break;
default:
err = lo->ioctl ? lo->ioctl(lo, cmd, arg) : -EINVAL;
}
@@ -1575,12 +1593,13 @@ static void lo_release(struct gendisk *disk, fmode_t mode)
err = loop_clr_fd(lo);
if (!err)
return;
- } else {
+ } else if (lo->lo_state == Lo_bound) {
/*
* Otherwise keep thread (if running) and config,
* but flush possible ongoing bios in thread.
*/
- loop_flush(lo);
+ blk_mq_freeze_queue(lo->lo_queue);
+ blk_mq_unfreeze_queue(lo->lo_queue);
}
mutex_unlock(&lo->lo_ctl_mutex);
@@ -1645,7 +1664,7 @@ int loop_unregister_transfer(int number)
EXPORT_SYMBOL(loop_register_transfer);
EXPORT_SYMBOL(loop_unregister_transfer);
-static int loop_queue_rq(struct blk_mq_hw_ctx *hctx,
+static blk_status_t loop_queue_rq(struct blk_mq_hw_ctx *hctx,
const struct blk_mq_queue_data *bd)
{
struct loop_cmd *cmd = blk_mq_rq_to_pdu(bd->rq);
@@ -1654,7 +1673,7 @@ static int loop_queue_rq(struct blk_mq_hw_ctx *hctx,
blk_mq_start_request(bd->rq);
if (lo->lo_state != Lo_bound)
- return BLK_MQ_RQ_QUEUE_ERROR;
+ return BLK_STS_IOERR;
switch (req_op(cmd->rq)) {
case REQ_OP_FLUSH:
@@ -1669,7 +1688,7 @@ static int loop_queue_rq(struct blk_mq_hw_ctx *hctx,
kthread_queue_work(&lo->worker, &cmd->work);
- return BLK_MQ_RQ_QUEUE_OK;
+ return BLK_STS_OK;
}
static void loop_handle_cmd(struct loop_cmd *cmd)
@@ -1762,9 +1781,13 @@ static int loop_add(struct loop_device **l, int i)
}
lo->lo_queue->queuedata = lo;
+ blk_queue_max_hw_sectors(lo->lo_queue, BLK_DEF_MAX_SECTORS);
+
/*
- * It doesn't make sense to enable merge because the I/O
- * submitted to backing file is handled page by page.
+ * By default, we do buffer IO, so it doesn't make sense to enable
+ * merge because the I/O submitted to backing file is handled page by
+ * page. For directio mode, merge does help to dispatch bigger request
+ * to underlayer disk. We will enable merge once directio is enabled.
*/
queue_flag_set_unlocked(QUEUE_FLAG_NOMERGES, lo->lo_queue);
@@ -1958,10 +1981,6 @@ static int __init loop_init(void)
struct loop_device *lo;
int err;
- err = misc_register(&loop_misc);
- if (err < 0)
- return err;
-
part_shift = 0;
if (max_part > 0) {
part_shift = fls(max_part);
@@ -1979,12 +1998,12 @@ static int __init loop_init(void)
if ((1UL << part_shift) > DISK_MAX_PARTS) {
err = -EINVAL;
- goto misc_out;
+ goto err_out;
}
if (max_loop > 1UL << (MINORBITS - part_shift)) {
err = -EINVAL;
- goto misc_out;
+ goto err_out;
}
/*
@@ -2003,6 +2022,11 @@ static int __init loop_init(void)
range = 1UL << MINORBITS;
}
+ err = misc_register(&loop_misc);
+ if (err < 0)
+ goto err_out;
+
+
if (register_blkdev(LOOP_MAJOR, "loop")) {
err = -EIO;
goto misc_out;
@@ -2022,6 +2046,7 @@ static int __init loop_init(void)
misc_out:
misc_deregister(&loop_misc);
+err_out:
return err;
}
diff --git a/drivers/block/loop.h b/drivers/block/loop.h
index fecd3f97ef8c..1f3956702993 100644
--- a/drivers/block/loop.h
+++ b/drivers/block/loop.h
@@ -48,7 +48,6 @@ struct loop_device {
struct file * lo_backing_file;
struct block_device *lo_device;
- unsigned lo_blocksize;
void *key_data;
gfp_t old_gfp_mask;
@@ -68,10 +67,11 @@ struct loop_device {
struct loop_cmd {
struct kthread_work work;
struct request *rq;
- struct list_head list;
- bool use_aio; /* use AIO interface to handle I/O */
+ bool use_aio; /* use AIO interface to handle I/O */
+ atomic_t ref; /* only for aio */
long ret;
struct kiocb iocb;
+ struct bio_vec *bvec;
};
/* Support for loadable transfer modules */
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 3a779a4f5653..4a3cfc7940de 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -174,7 +174,6 @@ static void mtip_init_cmd_header(struct request *rq)
{
struct driver_data *dd = rq->q->queuedata;
struct mtip_cmd *cmd = blk_mq_rq_to_pdu(rq);
- u32 host_cap_64 = readl(dd->mmio + HOST_CAP) & HOST_CAP_64;
/* Point the command headers at the command tables. */
cmd->command_header = dd->port->command_list +
@@ -182,7 +181,7 @@ static void mtip_init_cmd_header(struct request *rq)
cmd->command_header_dma = dd->port->command_list_dma +
(sizeof(struct mtip_cmd_hdr) * rq->tag);
- if (host_cap_64)
+ if (test_bit(MTIP_PF_HOST_CAP_64, &dd->port->flags))
cmd->command_header->ctbau = __force_bit2int cpu_to_le32((cmd->command_dma >> 16) >> 16);
cmd->command_header->ctba = __force_bit2int cpu_to_le32(cmd->command_dma & 0xFFFFFFFF);
@@ -386,6 +385,7 @@ static void mtip_init_port(struct mtip_port *port)
port->mmio + PORT_LST_ADDR_HI);
writel((port->rxfis_dma >> 16) >> 16,
port->mmio + PORT_FIS_ADDR_HI);
+ set_bit(MTIP_PF_HOST_CAP_64, &port->flags);
}
writel(port->command_list_dma & 0xFFFFFFFF,
@@ -532,7 +532,7 @@ static int mtip_read_log_page(struct mtip_port *port, u8 page, u16 *buffer,
static int mtip_get_smart_attr(struct mtip_port *port, unsigned int id,
struct smart_attr *attrib);
-static void mtip_complete_command(struct mtip_cmd *cmd, int status)
+static void mtip_complete_command(struct mtip_cmd *cmd, blk_status_t status)
{
struct request *req = blk_mq_rq_from_pdu(cmd);
@@ -568,7 +568,7 @@ static void mtip_handle_tfe(struct driver_data *dd)
if (test_bit(MTIP_PF_IC_ACTIVE_BIT, &port->flags)) {
cmd = mtip_cmd_from_tag(dd, MTIP_TAG_INTERNAL);
dbg_printk(MTIP_DRV_NAME " TFE for the internal command\n");
- mtip_complete_command(cmd, -EIO);
+ mtip_complete_command(cmd, BLK_STS_IOERR);
return;
}
@@ -667,7 +667,7 @@ static void mtip_handle_tfe(struct driver_data *dd)
tag,
fail_reason != NULL ?
fail_reason : "unknown");
- mtip_complete_command(cmd, -ENODATA);
+ mtip_complete_command(cmd, BLK_STS_MEDIUM);
continue;
}
}
@@ -690,7 +690,7 @@ static void mtip_handle_tfe(struct driver_data *dd)
dev_warn(&port->dd->pdev->dev,
"retiring tag %d\n", tag);
- mtip_complete_command(cmd, -EIO);
+ mtip_complete_command(cmd, BLK_STS_IOERR);
}
}
print_tags(dd, "reissued (TFE)", tagaccum, cmd_cnt);
@@ -950,7 +950,7 @@ static int mtip_quiesce_io(struct mtip_port *port, unsigned long timeout)
unsigned long to;
bool active = true;
- blk_mq_stop_hw_queues(port->dd->queue);
+ blk_mq_quiesce_queue(port->dd->queue);
to = jiffies + msecs_to_jiffies(timeout);
do {
@@ -970,10 +970,10 @@ static int mtip_quiesce_io(struct mtip_port *port, unsigned long timeout)
break;
} while (time_before(jiffies, to));
- blk_mq_start_stopped_hw_queues(port->dd->queue, true);
+ blk_mq_unquiesce_queue(port->dd->queue);
return active ? -EBUSY : 0;
err_fault:
- blk_mq_start_stopped_hw_queues(port->dd->queue, true);
+ blk_mq_unquiesce_queue(port->dd->queue);
return -EFAULT;
}
@@ -1063,23 +1063,10 @@ static int mtip_exec_internal_command(struct mtip_port *port,
/* insert request and run queue */
blk_execute_rq(rq->q, NULL, rq, true);
- rv = int_cmd->status;
- if (rv < 0) {
- if (rv == -ERESTARTSYS) { /* interrupted */
- dev_err(&dd->pdev->dev,
- "Internal command [%02X] was interrupted after %u ms\n",
- fis->command,
- jiffies_to_msecs(jiffies - start));
- rv = -EINTR;
- goto exec_ic_exit;
- } else if (rv == 0) /* timeout */
- dev_err(&dd->pdev->dev,
- "Internal command did not complete [%02X] within timeout of %lu ms\n",
- fis->command, timeout);
- else
- dev_err(&dd->pdev->dev,
- "Internal command [%02X] wait returned code [%d] after %lu ms - unhandled\n",
- fis->command, rv, timeout);
+ if (int_cmd->status) {
+ dev_err(&dd->pdev->dev, "Internal command [%02X] failed %d\n",
+ fis->command, int_cmd->status);
+ rv = -EIO;
if (mtip_check_surprise_removal(dd->pdev) ||
test_bit(MTIP_DDF_REMOVE_PENDING_BIT,
@@ -2750,10 +2737,13 @@ static void mtip_abort_cmd(struct request *req, void *data,
struct mtip_cmd *cmd = blk_mq_rq_to_pdu(req);
struct driver_data *dd = data;
+ if (!blk_mq_request_started(req))
+ return;
+
dbg_printk(MTIP_DRV_NAME " Aborting request, tag = %d\n", req->tag);
clear_bit(req->tag, dd->port->cmds_to_issue);
- cmd->status = -EIO;
+ cmd->status = BLK_STS_IOERR;
mtip_softirq_done_fn(req);
}
@@ -2762,6 +2752,9 @@ static void mtip_queue_cmd(struct request *req, void *data,
{
struct driver_data *dd = data;
+ if (!blk_mq_request_started(req))
+ return;
+
set_bit(req->tag, dd->port->cmds_to_issue);
blk_abort_request(req);
}
@@ -2827,6 +2820,8 @@ restart_eh:
dev_warn(&dd->pdev->dev,
"Completion workers still active!");
+ blk_mq_quiesce_queue(dd->queue);
+
spin_lock(dd->queue->queue_lock);
blk_mq_tagset_busy_iter(&dd->tags,
mtip_queue_cmd, dd);
@@ -2839,6 +2834,8 @@ restart_eh:
mtip_abort_cmd, dd);
clear_bit(MTIP_PF_TO_ACTIVE_BIT, &dd->port->flags);
+
+ blk_mq_unquiesce_queue(dd->queue);
}
if (test_bit(MTIP_PF_ISSUE_CMDS_BIT, &port->flags)) {
@@ -3597,7 +3594,7 @@ static int mtip_submit_request(struct blk_mq_hw_ctx *hctx, struct request *rq)
int err;
err = mtip_send_trim(dd, blk_rq_pos(rq), blk_rq_sectors(rq));
- blk_mq_end_request(rq, err);
+ blk_mq_end_request(rq, err ? BLK_STS_IOERR : BLK_STS_OK);
return 0;
}
@@ -3633,8 +3630,8 @@ static bool mtip_check_unal_depth(struct blk_mq_hw_ctx *hctx,
return false;
}
-static int mtip_issue_reserved_cmd(struct blk_mq_hw_ctx *hctx,
- struct request *rq)
+static blk_status_t mtip_issue_reserved_cmd(struct blk_mq_hw_ctx *hctx,
+ struct request *rq)
{
struct driver_data *dd = hctx->queue->queuedata;
struct mtip_int_cmd *icmd = rq->special;
@@ -3642,7 +3639,7 @@ static int mtip_issue_reserved_cmd(struct blk_mq_hw_ctx *hctx,
struct mtip_cmd_sg *command_sg;
if (mtip_commands_active(dd->port))
- return BLK_MQ_RQ_QUEUE_BUSY;
+ return BLK_STS_RESOURCE;
/* Populate the SG list */
cmd->command_header->opts =
@@ -3666,10 +3663,10 @@ static int mtip_issue_reserved_cmd(struct blk_mq_hw_ctx *hctx,
blk_mq_start_request(rq);
mtip_issue_non_ncq_command(dd->port, rq->tag);
- return BLK_MQ_RQ_QUEUE_OK;
+ return 0;
}
-static int mtip_queue_rq(struct blk_mq_hw_ctx *hctx,
+static blk_status_t mtip_queue_rq(struct blk_mq_hw_ctx *hctx,
const struct blk_mq_queue_data *bd)
{
struct request *rq = bd->rq;
@@ -3681,15 +3678,14 @@ static int mtip_queue_rq(struct blk_mq_hw_ctx *hctx,
return mtip_issue_reserved_cmd(hctx, rq);
if (unlikely(mtip_check_unal_depth(hctx, rq)))
- return BLK_MQ_RQ_QUEUE_BUSY;
+ return BLK_STS_RESOURCE;
blk_mq_start_request(rq);
ret = mtip_submit_request(hctx, rq);
if (likely(!ret))
- return BLK_MQ_RQ_QUEUE_OK;
-
- return BLK_MQ_RQ_QUEUE_ERROR;
+ return BLK_STS_OK;
+ return BLK_STS_IOERR;
}
static void mtip_free_cmd(struct blk_mq_tag_set *set, struct request *rq,
@@ -3730,7 +3726,7 @@ static enum blk_eh_timer_return mtip_cmd_timeout(struct request *req,
if (reserved) {
struct mtip_cmd *cmd = blk_mq_rq_to_pdu(req);
- cmd->status = -ETIME;
+ cmd->status = BLK_STS_TIMEOUT;
return BLK_EH_HANDLED;
}
@@ -3961,7 +3957,7 @@ static void mtip_no_dev_cleanup(struct request *rq, void *data, bool reserv)
{
struct mtip_cmd *cmd = blk_mq_rq_to_pdu(rq);
- cmd->status = -ENODEV;
+ cmd->status = BLK_STS_IOERR;
blk_mq_complete_request(rq);
}
@@ -4009,8 +4005,9 @@ static int mtip_block_remove(struct driver_data *dd)
dd->disk->disk_name);
blk_freeze_queue_start(dd->queue);
- blk_mq_stop_hw_queues(dd->queue);
+ blk_mq_quiesce_queue(dd->queue);
blk_mq_tagset_busy_iter(&dd->tags, mtip_no_dev_cleanup, dd);
+ blk_mq_unquiesce_queue(dd->queue);
/*
* Delete our gendisk structure. This also removes the device
diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h
index 37b8e3e0bb78..e20e55dab443 100644
--- a/drivers/block/mtip32xx/mtip32xx.h
+++ b/drivers/block/mtip32xx/mtip32xx.h
@@ -140,6 +140,7 @@ enum {
(1 << MTIP_PF_SE_ACTIVE_BIT) |
(1 << MTIP_PF_DM_ACTIVE_BIT) |
(1 << MTIP_PF_TO_ACTIVE_BIT)),
+ MTIP_PF_HOST_CAP_64 = 10, /* cache HOST_CAP_64 */
MTIP_PF_SVC_THD_ACTIVE_BIT = 4,
MTIP_PF_ISSUE_CMDS_BIT = 5,
@@ -342,7 +343,7 @@ struct mtip_cmd {
int retries; /* The number of retries left for this command. */
int direction; /* Data transfer direction */
- int status;
+ blk_status_t status;
};
/* Structure used to describe a port. */
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index f3f191ba8ca4..baebbdfd74d5 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -116,7 +116,7 @@ struct nbd_cmd {
int index;
int cookie;
struct completion send_complete;
- int status;
+ blk_status_t status;
};
#if IS_ENABLED(CONFIG_DEBUG_FS)
@@ -128,7 +128,7 @@ static struct dentry *nbd_dbg_dir;
#define NBD_MAGIC 0x68797548
static unsigned int nbds_max = 16;
-static int max_part;
+static int max_part = 16;
static struct workqueue_struct *recv_workqueue;
static int part_shift;
@@ -165,7 +165,7 @@ static ssize_t pid_show(struct device *dev,
return sprintf(buf, "%d\n", task_pid_nr(nbd->task_recv));
}
-static struct device_attribute pid_attr = {
+static const struct device_attribute pid_attr = {
.attr = { .name = "pid", .mode = S_IRUGO},
.show = pid_show,
};
@@ -243,7 +243,6 @@ static void nbd_size_set(struct nbd_device *nbd, loff_t blocksize,
struct nbd_config *config = nbd->config;
config->blksize = blocksize;
config->bytesize = blocksize * nr_blocks;
- nbd_size_update(nbd);
}
static void nbd_complete_rq(struct request *req)
@@ -286,7 +285,7 @@ static enum blk_eh_timer_return nbd_xmit_timeout(struct request *req,
struct nbd_config *config;
if (!refcount_inc_not_zero(&nbd->config_refs)) {
- cmd->status = -EIO;
+ cmd->status = BLK_STS_TIMEOUT;
return BLK_EH_HANDLED;
}
@@ -331,7 +330,7 @@ static enum blk_eh_timer_return nbd_xmit_timeout(struct request *req,
"Connection timed out\n");
}
set_bit(NBD_TIMEDOUT, &config->runtime_flags);
- cmd->status = -EIO;
+ cmd->status = BLK_STS_IOERR;
sock_shutdown(nbd);
nbd_config_put(nbd);
@@ -400,6 +399,7 @@ static int nbd_send_cmd(struct nbd_device *nbd, struct nbd_cmd *cmd, int index)
unsigned long size = blk_rq_bytes(req);
struct bio *bio;
u32 type;
+ u32 nbd_cmd_flags = 0;
u32 tag = blk_mq_unique_tag(req);
int sent = nsock->sent, skip = 0;
@@ -429,6 +429,9 @@ static int nbd_send_cmd(struct nbd_device *nbd, struct nbd_cmd *cmd, int index)
return -EIO;
}
+ if (req->cmd_flags & REQ_FUA)
+ nbd_cmd_flags |= NBD_CMD_FLAG_FUA;
+
/* We did a partial send previously, and we at least sent the whole
* request struct, so just go and send the rest of the pages in the
* request.
@@ -442,7 +445,7 @@ static int nbd_send_cmd(struct nbd_device *nbd, struct nbd_cmd *cmd, int index)
}
cmd->index = index;
cmd->cookie = nsock->cookie;
- request.type = htonl(type);
+ request.type = htonl(type | nbd_cmd_flags);
if (type != NBD_CMD_FLUSH) {
request.from = cpu_to_be64((u64)blk_rq_pos(req) << 9);
request.len = htonl(size);
@@ -465,7 +468,7 @@ static int nbd_send_cmd(struct nbd_device *nbd, struct nbd_cmd *cmd, int index)
nsock->pending = req;
nsock->sent = sent;
}
- return BLK_MQ_RQ_QUEUE_BUSY;
+ return BLK_STS_RESOURCE;
}
dev_err_ratelimited(disk_to_dev(nbd->disk),
"Send control failed (result %d)\n", result);
@@ -506,7 +509,7 @@ send_pages:
*/
nsock->pending = req;
nsock->sent = sent;
- return BLK_MQ_RQ_QUEUE_BUSY;
+ return BLK_STS_RESOURCE;
}
dev_err(disk_to_dev(nbd->disk),
"Send data failed (result %d)\n",
@@ -574,7 +577,7 @@ static struct nbd_cmd *nbd_read_stat(struct nbd_device *nbd, int index)
if (ntohl(reply.error)) {
dev_err(disk_to_dev(nbd->disk), "Other side returned error (%d)\n",
ntohl(reply.error));
- cmd->status = -EIO;
+ cmd->status = BLK_STS_IOERR;
return cmd;
}
@@ -599,7 +602,7 @@ static struct nbd_cmd *nbd_read_stat(struct nbd_device *nbd, int index)
*/
if (nbd_disconnected(config) ||
config->num_connections <= 1) {
- cmd->status = -EIO;
+ cmd->status = BLK_STS_IOERR;
return cmd;
}
return ERR_PTR(-EIO);
@@ -622,7 +625,6 @@ static void recv_work(struct work_struct *work)
struct nbd_device *nbd = args->nbd;
struct nbd_config *config = nbd->config;
struct nbd_cmd *cmd;
- int ret = 0;
while (1) {
cmd = nbd_read_stat(nbd, args->index);
@@ -632,7 +634,6 @@ static void recv_work(struct work_struct *work)
mutex_lock(&nsock->tx_lock);
nbd_mark_nsock_dead(nbd, nsock, 1);
mutex_unlock(&nsock->tx_lock);
- ret = PTR_ERR(cmd);
break;
}
@@ -651,15 +652,15 @@ static void nbd_clear_req(struct request *req, void *data, bool reserved)
if (!blk_mq_request_started(req))
return;
cmd = blk_mq_rq_to_pdu(req);
- cmd->status = -EIO;
+ cmd->status = BLK_STS_IOERR;
blk_mq_complete_request(req);
}
static void nbd_clear_que(struct nbd_device *nbd)
{
- blk_mq_stop_hw_queues(nbd->disk->queue);
+ blk_mq_quiesce_queue(nbd->disk->queue);
blk_mq_tagset_busy_iter(&nbd->tag_set, nbd_clear_req, NULL);
- blk_mq_start_hw_queues(nbd->disk->queue);
+ blk_mq_unquiesce_queue(nbd->disk->queue);
dev_dbg(disk_to_dev(nbd->disk), "queue cleared\n");
}
@@ -740,7 +741,7 @@ static int nbd_handle_cmd(struct nbd_cmd *cmd, int index)
nbd_config_put(nbd);
return -EINVAL;
}
- cmd->status = 0;
+ cmd->status = BLK_STS_OK;
again:
nsock = config->socks[index];
mutex_lock(&nsock->tx_lock);
@@ -794,7 +795,7 @@ out:
return ret;
}
-static int nbd_queue_rq(struct blk_mq_hw_ctx *hctx,
+static blk_status_t nbd_queue_rq(struct blk_mq_hw_ctx *hctx,
const struct blk_mq_queue_data *bd)
{
struct nbd_cmd *cmd = blk_mq_rq_to_pdu(bd->rq);
@@ -819,9 +820,9 @@ static int nbd_queue_rq(struct blk_mq_hw_ctx *hctx,
*/
ret = nbd_handle_cmd(cmd, hctx->queue_num);
if (ret < 0)
- ret = BLK_MQ_RQ_QUEUE_ERROR;
- if (!ret)
- ret = BLK_MQ_RQ_QUEUE_OK;
+ ret = BLK_STS_IOERR;
+ else if (!ret)
+ ret = BLK_STS_OK;
complete(&cmd->send_complete);
return ret;
@@ -910,6 +911,8 @@ static int nbd_reconnect_socket(struct nbd_device *nbd, unsigned long arg)
continue;
}
sk_set_memalloc(sock->sk);
+ if (nbd->tag_set.timeout)
+ sock->sk->sk_sndtimeo = nbd->tag_set.timeout;
atomic_inc(&config->recv_threads);
refcount_inc(&nbd->config_refs);
old = nsock->sock;
@@ -923,6 +926,8 @@ static int nbd_reconnect_socket(struct nbd_device *nbd, unsigned long arg)
mutex_unlock(&nsock->tx_lock);
sockfd_put(old);
+ clear_bit(NBD_DISCONNECTED, &config->runtime_flags);
+
/* We take the tx_mutex in an error path in the recv_work, so we
* need to queue_work outside of the tx_mutex.
*/
@@ -957,8 +962,12 @@ static void nbd_parse_flags(struct nbd_device *nbd)
set_disk_ro(nbd->disk, false);
if (config->flags & NBD_FLAG_SEND_TRIM)
queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, nbd->disk->queue);
- if (config->flags & NBD_FLAG_SEND_FLUSH)
- blk_queue_write_cache(nbd->disk->queue, true, false);
+ if (config->flags & NBD_FLAG_SEND_FLUSH) {
+ if (config->flags & NBD_FLAG_SEND_FUA)
+ blk_queue_write_cache(nbd->disk->queue, true, true);
+ else
+ blk_queue_write_cache(nbd->disk->queue, true, false);
+ }
else
blk_queue_write_cache(nbd->disk->queue, false, false);
}
@@ -975,11 +984,15 @@ static void send_disconnects(struct nbd_device *nbd)
int i, ret;
for (i = 0; i < config->num_connections; i++) {
+ struct nbd_sock *nsock = config->socks[i];
+
iov_iter_kvec(&from, WRITE | ITER_KVEC, &iov, 1, sizeof(request));
+ mutex_lock(&nsock->tx_lock);
ret = sock_xmit(nbd, i, 1, &from, 0, NULL);
if (ret <= 0)
dev_err(disk_to_dev(nbd->disk),
"Send disconnect failed %d\n", ret);
+ mutex_unlock(&nsock->tx_lock);
}
}
@@ -988,9 +1001,8 @@ static int nbd_disconnect(struct nbd_device *nbd)
struct nbd_config *config = nbd->config;
dev_info(disk_to_dev(nbd->disk), "NBD_DISCONNECT\n");
- if (!test_and_set_bit(NBD_DISCONNECT_REQUESTED,
- &config->runtime_flags))
- send_disconnects(nbd);
+ set_bit(NBD_DISCONNECT_REQUESTED, &config->runtime_flags);
+ send_disconnects(nbd);
return 0;
}
@@ -1071,6 +1083,9 @@ static int nbd_start_device(struct nbd_device *nbd)
return -ENOMEM;
}
sk_set_memalloc(config->socks[i]->sock->sk);
+ if (nbd->tag_set.timeout)
+ config->socks[i]->sock->sk->sk_sndtimeo =
+ nbd->tag_set.timeout;
atomic_inc(&config->recv_threads);
refcount_inc(&nbd->config_refs);
INIT_WORK(&args->work, recv_work);
@@ -1078,6 +1093,7 @@ static int nbd_start_device(struct nbd_device *nbd)
args->index = i;
queue_work(recv_workqueue, &args->work);
}
+ nbd_size_update(nbd);
return error;
}
@@ -1182,6 +1198,12 @@ static int nbd_ioctl(struct block_device *bdev, fmode_t mode,
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
+ /* The block layer will pass back some non-nbd ioctls in case we have
+ * special handling for them, but we don't so just return an error.
+ */
+ if (_IOC_TYPE(cmd) != 0xab)
+ return -EINVAL;
+
mutex_lock(&nbd->config_lock);
/* Don't allow ioctl operations on a nbd device that was created with
@@ -1305,6 +1327,8 @@ static int nbd_dbg_flags_show(struct seq_file *s, void *unused)
seq_puts(s, "NBD_FLAG_READ_ONLY\n");
if (flags & NBD_FLAG_SEND_FLUSH)
seq_puts(s, "NBD_FLAG_SEND_FLUSH\n");
+ if (flags & NBD_FLAG_SEND_FUA)
+ seq_puts(s, "NBD_FLAG_SEND_FUA\n");
if (flags & NBD_FLAG_SEND_TRIM)
seq_puts(s, "NBD_FLAG_SEND_TRIM\n");
@@ -1570,6 +1594,15 @@ again:
}
} else {
nbd = idr_find(&nbd_index_idr, index);
+ if (!nbd) {
+ ret = nbd_dev_add(index);
+ if (ret < 0) {
+ mutex_unlock(&nbd_index_mutex);
+ printk(KERN_ERR "nbd: failed to add new device\n");
+ return ret;
+ }
+ nbd = idr_find(&nbd_index_idr, index);
+ }
}
if (!nbd) {
printk(KERN_ERR "nbd: couldn't find device at index %d\n",
@@ -2123,4 +2156,4 @@ MODULE_LICENSE("GPL");
module_param(nbds_max, int, 0444);
MODULE_PARM_DESC(nbds_max, "number of network block devices to initialize (default: 16)");
module_param(max_part, int, 0444);
-MODULE_PARM_DESC(max_part, "number of partitions per device (default: 0)");
+MODULE_PARM_DESC(max_part, "number of partitions per device (default: 16)");
diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c
index d946e1eeac8e..8042c26ea9e6 100644
--- a/drivers/block/null_blk.c
+++ b/drivers/block/null_blk.c
@@ -1,3 +1,7 @@
+/*
+ * Add configfs and memory store: Kyungchan Koh <kkc6196@fb.com> and
+ * Shaohua Li <shli@fb.com>
+ */
#include <linux/module.h>
#include <linux/moduleparam.h>
@@ -9,35 +13,121 @@
#include <linux/blk-mq.h>
#include <linux/hrtimer.h>
#include <linux/lightnvm.h>
+#include <linux/configfs.h>
+#include <linux/badblocks.h>
+
+#define SECTOR_SHIFT 9
+#define PAGE_SECTORS_SHIFT (PAGE_SHIFT - SECTOR_SHIFT)
+#define PAGE_SECTORS (1 << PAGE_SECTORS_SHIFT)
+#define SECTOR_SIZE (1 << SECTOR_SHIFT)
+#define SECTOR_MASK (PAGE_SECTORS - 1)
+
+#define FREE_BATCH 16
+
+#define TICKS_PER_SEC 50ULL
+#define TIMER_INTERVAL (NSEC_PER_SEC / TICKS_PER_SEC)
+
+static inline u64 mb_per_tick(int mbps)
+{
+ return (1 << 20) / TICKS_PER_SEC * ((u64) mbps);
+}
struct nullb_cmd {
struct list_head list;
struct llist_node ll_list;
- struct call_single_data csd;
+ call_single_data_t csd;
struct request *rq;
struct bio *bio;
unsigned int tag;
struct nullb_queue *nq;
struct hrtimer timer;
+ blk_status_t error;
};
struct nullb_queue {
unsigned long *tag_map;
wait_queue_head_t wait;
unsigned int queue_depth;
+ struct nullb_device *dev;
struct nullb_cmd *cmds;
};
+/*
+ * Status flags for nullb_device.
+ *
+ * CONFIGURED: Device has been configured and turned on. Cannot reconfigure.
+ * UP: Device is currently on and visible in userspace.
+ * THROTTLED: Device is being throttled.
+ * CACHE: Device is using a write-back cache.
+ */
+enum nullb_device_flags {
+ NULLB_DEV_FL_CONFIGURED = 0,
+ NULLB_DEV_FL_UP = 1,
+ NULLB_DEV_FL_THROTTLED = 2,
+ NULLB_DEV_FL_CACHE = 3,
+};
+
+/*
+ * nullb_page is a page in memory for nullb devices.
+ *
+ * @page: The page holding the data.
+ * @bitmap: The bitmap represents which sector in the page has data.
+ * Each bit represents one block size. For example, sector 8
+ * will use the 7th bit
+ * The highest 2 bits of bitmap are for special purpose. LOCK means the cache
+ * page is being flushing to storage. FREE means the cache page is freed and
+ * should be skipped from flushing to storage. Please see
+ * null_make_cache_space
+ */
+struct nullb_page {
+ struct page *page;
+ unsigned long bitmap;
+};
+#define NULLB_PAGE_LOCK (sizeof(unsigned long) * 8 - 1)
+#define NULLB_PAGE_FREE (sizeof(unsigned long) * 8 - 2)
+
+struct nullb_device {
+ struct nullb *nullb;
+ struct config_item item;
+ struct radix_tree_root data; /* data stored in the disk */
+ struct radix_tree_root cache; /* disk cache data */
+ unsigned long flags; /* device flags */
+ unsigned int curr_cache;
+ struct badblocks badblocks;
+
+ unsigned long size; /* device size in MB */
+ unsigned long completion_nsec; /* time in ns to complete a request */
+ unsigned long cache_size; /* disk cache size in MB */
+ unsigned int submit_queues; /* number of submission queues */
+ unsigned int home_node; /* home node for the device */
+ unsigned int queue_mode; /* block interface */
+ unsigned int blocksize; /* block size */
+ unsigned int irqmode; /* IRQ completion handler */
+ unsigned int hw_queue_depth; /* queue depth */
+ unsigned int index; /* index of the disk, only valid with a disk */
+ unsigned int mbps; /* Bandwidth throttle cap (in MB/s) */
+ bool use_lightnvm; /* register as a LightNVM device */
+ bool blocking; /* blocking blk-mq device */
+ bool use_per_node_hctx; /* use per-node allocation for hardware context */
+ bool power; /* power on/off the device */
+ bool memory_backed; /* if data is stored in memory */
+ bool discard; /* if support discard */
+};
+
struct nullb {
+ struct nullb_device *dev;
struct list_head list;
unsigned int index;
struct request_queue *q;
struct gendisk *disk;
struct nvm_dev *ndev;
- struct blk_mq_tag_set tag_set;
- struct hrtimer timer;
+ struct blk_mq_tag_set *tag_set;
+ struct blk_mq_tag_set __tag_set;
unsigned int queue_depth;
+ atomic_long_t cur_bytes;
+ struct hrtimer bw_timer;
+ unsigned long cache_flush_pos;
spinlock_t lock;
struct nullb_queue *queues;
@@ -48,8 +138,9 @@ struct nullb {
static LIST_HEAD(nullb_list);
static struct mutex lock;
static int null_major;
-static int nullb_indexes;
+static DEFINE_IDA(nullb_indexes);
static struct kmem_cache *ppa_cache;
+static struct blk_mq_tag_set tag_set;
enum {
NULL_IRQ_NONE = 0,
@@ -63,15 +154,15 @@ enum {
NULL_Q_MQ = 2,
};
-static int submit_queues;
-module_param(submit_queues, int, S_IRUGO);
+static int g_submit_queues = 1;
+module_param_named(submit_queues, g_submit_queues, int, S_IRUGO);
MODULE_PARM_DESC(submit_queues, "Number of submission queues");
-static int home_node = NUMA_NO_NODE;
-module_param(home_node, int, S_IRUGO);
+static int g_home_node = NUMA_NO_NODE;
+module_param_named(home_node, g_home_node, int, S_IRUGO);
MODULE_PARM_DESC(home_node, "Home node for the device");
-static int queue_mode = NULL_Q_MQ;
+static int g_queue_mode = NULL_Q_MQ;
static int null_param_store_val(const char *str, int *val, int min, int max)
{
@@ -90,7 +181,7 @@ static int null_param_store_val(const char *str, int *val, int min, int max)
static int null_set_queue_mode(const char *str, const struct kernel_param *kp)
{
- return null_param_store_val(str, &queue_mode, NULL_Q_BIO, NULL_Q_MQ);
+ return null_param_store_val(str, &g_queue_mode, NULL_Q_BIO, NULL_Q_MQ);
}
static const struct kernel_param_ops null_queue_mode_param_ops = {
@@ -98,34 +189,38 @@ static const struct kernel_param_ops null_queue_mode_param_ops = {
.get = param_get_int,
};
-device_param_cb(queue_mode, &null_queue_mode_param_ops, &queue_mode, S_IRUGO);
+device_param_cb(queue_mode, &null_queue_mode_param_ops, &g_queue_mode, S_IRUGO);
MODULE_PARM_DESC(queue_mode, "Block interface to use (0=bio,1=rq,2=multiqueue)");
-static int gb = 250;
-module_param(gb, int, S_IRUGO);
+static int g_gb = 250;
+module_param_named(gb, g_gb, int, S_IRUGO);
MODULE_PARM_DESC(gb, "Size in GB");
-static int bs = 512;
-module_param(bs, int, S_IRUGO);
+static int g_bs = 512;
+module_param_named(bs, g_bs, int, S_IRUGO);
MODULE_PARM_DESC(bs, "Block size (in bytes)");
-static int nr_devices = 2;
+static int nr_devices = 1;
module_param(nr_devices, int, S_IRUGO);
MODULE_PARM_DESC(nr_devices, "Number of devices to register");
-static bool use_lightnvm;
-module_param(use_lightnvm, bool, S_IRUGO);
+static bool g_use_lightnvm;
+module_param_named(use_lightnvm, g_use_lightnvm, bool, S_IRUGO);
MODULE_PARM_DESC(use_lightnvm, "Register as a LightNVM device");
-static bool blocking;
-module_param(blocking, bool, S_IRUGO);
+static bool g_blocking;
+module_param_named(blocking, g_blocking, bool, S_IRUGO);
MODULE_PARM_DESC(blocking, "Register as a blocking blk-mq driver device");
-static int irqmode = NULL_IRQ_SOFTIRQ;
+static bool shared_tags;
+module_param(shared_tags, bool, S_IRUGO);
+MODULE_PARM_DESC(shared_tags, "Share tag set between devices for blk-mq");
+
+static int g_irqmode = NULL_IRQ_SOFTIRQ;
static int null_set_irqmode(const char *str, const struct kernel_param *kp)
{
- return null_param_store_val(str, &irqmode, NULL_IRQ_NONE,
+ return null_param_store_val(str, &g_irqmode, NULL_IRQ_NONE,
NULL_IRQ_TIMER);
}
@@ -134,21 +229,358 @@ static const struct kernel_param_ops null_irqmode_param_ops = {
.get = param_get_int,
};
-device_param_cb(irqmode, &null_irqmode_param_ops, &irqmode, S_IRUGO);
+device_param_cb(irqmode, &null_irqmode_param_ops, &g_irqmode, S_IRUGO);
MODULE_PARM_DESC(irqmode, "IRQ completion handler. 0-none, 1-softirq, 2-timer");
-static unsigned long completion_nsec = 10000;
-module_param(completion_nsec, ulong, S_IRUGO);
+static unsigned long g_completion_nsec = 10000;
+module_param_named(completion_nsec, g_completion_nsec, ulong, S_IRUGO);
MODULE_PARM_DESC(completion_nsec, "Time in ns to complete a request in hardware. Default: 10,000ns");
-static int hw_queue_depth = 64;
-module_param(hw_queue_depth, int, S_IRUGO);
+static int g_hw_queue_depth = 64;
+module_param_named(hw_queue_depth, g_hw_queue_depth, int, S_IRUGO);
MODULE_PARM_DESC(hw_queue_depth, "Queue depth for each hardware queue. Default: 64");
-static bool use_per_node_hctx = false;
-module_param(use_per_node_hctx, bool, S_IRUGO);
+static bool g_use_per_node_hctx;
+module_param_named(use_per_node_hctx, g_use_per_node_hctx, bool, S_IRUGO);
MODULE_PARM_DESC(use_per_node_hctx, "Use per-node allocation for hardware context queues. Default: false");
+static struct nullb_device *null_alloc_dev(void);
+static void null_free_dev(struct nullb_device *dev);
+static void null_del_dev(struct nullb *nullb);
+static int null_add_dev(struct nullb_device *dev);
+static void null_free_device_storage(struct nullb_device *dev, bool is_cache);
+
+static inline struct nullb_device *to_nullb_device(struct config_item *item)
+{
+ return item ? container_of(item, struct nullb_device, item) : NULL;
+}
+
+static inline ssize_t nullb_device_uint_attr_show(unsigned int val, char *page)
+{
+ return snprintf(page, PAGE_SIZE, "%u\n", val);
+}
+
+static inline ssize_t nullb_device_ulong_attr_show(unsigned long val,
+ char *page)
+{
+ return snprintf(page, PAGE_SIZE, "%lu\n", val);
+}
+
+static inline ssize_t nullb_device_bool_attr_show(bool val, char *page)
+{
+ return snprintf(page, PAGE_SIZE, "%u\n", val);
+}
+
+static ssize_t nullb_device_uint_attr_store(unsigned int *val,
+ const char *page, size_t count)
+{
+ unsigned int tmp;
+ int result;
+
+ result = kstrtouint(page, 0, &tmp);
+ if (result)
+ return result;